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author | Srikant Patnaik | 2015-01-11 12:28:04 +0530 |
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committer | Srikant Patnaik | 2015-01-11 12:28:04 +0530 |
commit | 871480933a1c28f8a9fed4c4d34d06c439a7a422 (patch) | |
tree | 8718f573808810c2a1e8cb8fb6ac469093ca2784 /drivers/media/video/s5p-fimc | |
parent | 9d40ac5867b9aefe0722bc1f110b965ff294d30d (diff) | |
download | FOSSEE-netbook-kernel-source-871480933a1c28f8a9fed4c4d34d06c439a7a422.tar.gz FOSSEE-netbook-kernel-source-871480933a1c28f8a9fed4c4d34d06c439a7a422.tar.bz2 FOSSEE-netbook-kernel-source-871480933a1c28f8a9fed4c4d34d06c439a7a422.zip |
Moved, renamed, and deleted files
The original directory structure was scattered and unorganized.
Changes are basically to make it look like kernel structure.
Diffstat (limited to 'drivers/media/video/s5p-fimc')
-rw-r--r-- | drivers/media/video/s5p-fimc/Makefile | 5 | ||||
-rw-r--r-- | drivers/media/video/s5p-fimc/fimc-capture.c | 1583 | ||||
-rw-r--r-- | drivers/media/video/s5p-fimc/fimc-core.c | 2045 | ||||
-rw-r--r-- | drivers/media/video/s5p-fimc/fimc-core.h | 826 | ||||
-rw-r--r-- | drivers/media/video/s5p-fimc/fimc-mdevice.c | 862 | ||||
-rw-r--r-- | drivers/media/video/s5p-fimc/fimc-mdevice.h | 118 | ||||
-rw-r--r-- | drivers/media/video/s5p-fimc/fimc-reg.c | 723 | ||||
-rw-r--r-- | drivers/media/video/s5p-fimc/mipi-csis.c | 729 | ||||
-rw-r--r-- | drivers/media/video/s5p-fimc/mipi-csis.h | 25 | ||||
-rw-r--r-- | drivers/media/video/s5p-fimc/regs-fimc.h | 301 |
10 files changed, 7217 insertions, 0 deletions
diff --git a/drivers/media/video/s5p-fimc/Makefile b/drivers/media/video/s5p-fimc/Makefile new file mode 100644 index 00000000..33dec7f8 --- /dev/null +++ b/drivers/media/video/s5p-fimc/Makefile @@ -0,0 +1,5 @@ +s5p-fimc-objs := fimc-core.o fimc-reg.o fimc-capture.o fimc-mdevice.o +s5p-csis-objs := mipi-csis.o + +obj-$(CONFIG_VIDEO_S5P_MIPI_CSIS) += s5p-csis.o +obj-$(CONFIG_VIDEO_SAMSUNG_S5P_FIMC) += s5p-fimc.o diff --git a/drivers/media/video/s5p-fimc/fimc-capture.c b/drivers/media/video/s5p-fimc/fimc-capture.c new file mode 100644 index 00000000..7e9b2c61 --- /dev/null +++ b/drivers/media/video/s5p-fimc/fimc-capture.c @@ -0,0 +1,1583 @@ +/* + * Samsung S5P/EXYNOS4 SoC series camera interface (camera capture) driver + * + * Copyright (C) 2010 - 2011 Samsung Electronics Co., Ltd. + * Author: Sylwester Nawrocki, <s.nawrocki@samsung.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include <linux/module.h> +#include <linux/kernel.h> +#include <linux/types.h> +#include <linux/errno.h> +#include <linux/bug.h> +#include <linux/interrupt.h> +#include <linux/device.h> +#include <linux/pm_runtime.h> +#include <linux/list.h> +#include <linux/slab.h> + +#include <linux/videodev2.h> +#include <media/v4l2-device.h> +#include <media/v4l2-ioctl.h> +#include <media/v4l2-mem2mem.h> +#include <media/videobuf2-core.h> +#include <media/videobuf2-dma-contig.h> + +#include "fimc-mdevice.h" +#include "fimc-core.h" + +static int fimc_init_capture(struct fimc_dev *fimc) +{ + struct fimc_ctx *ctx = fimc->vid_cap.ctx; + struct fimc_sensor_info *sensor; + unsigned long flags; + int ret = 0; + + if (fimc->pipeline.sensor == NULL || ctx == NULL) + return -ENXIO; + if (ctx->s_frame.fmt == NULL) + return -EINVAL; + + sensor = v4l2_get_subdev_hostdata(fimc->pipeline.sensor); + + spin_lock_irqsave(&fimc->slock, flags); + fimc_prepare_dma_offset(ctx, &ctx->d_frame); + fimc_set_yuv_order(ctx); + + fimc_hw_set_camera_polarity(fimc, sensor->pdata); + fimc_hw_set_camera_type(fimc, sensor->pdata); + fimc_hw_set_camera_source(fimc, sensor->pdata); + fimc_hw_set_camera_offset(fimc, &ctx->s_frame); + + ret = fimc_set_scaler_info(ctx); + if (!ret) { + fimc_hw_set_input_path(ctx); + fimc_hw_set_prescaler(ctx); + fimc_hw_set_mainscaler(ctx); + fimc_hw_set_target_format(ctx); + fimc_hw_set_rotation(ctx); + fimc_hw_set_effect(ctx, false); + fimc_hw_set_output_path(ctx); + fimc_hw_set_out_dma(ctx); + if (fimc->variant->has_alpha) + fimc_hw_set_rgb_alpha(ctx); + clear_bit(ST_CAPT_APPLY_CFG, &fimc->state); + } + spin_unlock_irqrestore(&fimc->slock, flags); + return ret; +} + +static int fimc_capture_state_cleanup(struct fimc_dev *fimc, bool suspend) +{ + struct fimc_vid_cap *cap = &fimc->vid_cap; + struct fimc_vid_buffer *buf; + unsigned long flags; + bool streaming; + + spin_lock_irqsave(&fimc->slock, flags); + streaming = fimc->state & (1 << ST_CAPT_ISP_STREAM); + + fimc->state &= ~(1 << ST_CAPT_RUN | 1 << ST_CAPT_SHUT | + 1 << ST_CAPT_STREAM | 1 << ST_CAPT_ISP_STREAM); + if (!suspend) + fimc->state &= ~(1 << ST_CAPT_PEND | 1 << ST_CAPT_SUSPENDED); + + /* Release unused buffers */ + while (!suspend && !list_empty(&cap->pending_buf_q)) { + buf = fimc_pending_queue_pop(cap); + vb2_buffer_done(&buf->vb, VB2_BUF_STATE_ERROR); + } + /* If suspending put unused buffers onto pending queue */ + while (!list_empty(&cap->active_buf_q)) { + buf = fimc_active_queue_pop(cap); + if (suspend) + fimc_pending_queue_add(cap, buf); + else + vb2_buffer_done(&buf->vb, VB2_BUF_STATE_ERROR); + } + set_bit(ST_CAPT_SUSPENDED, &fimc->state); + + fimc_hw_reset(fimc); + cap->buf_index = 0; + + spin_unlock_irqrestore(&fimc->slock, flags); + + if (streaming) + return fimc_pipeline_s_stream(fimc, 0); + else + return 0; +} + +static int fimc_stop_capture(struct fimc_dev *fimc, bool suspend) +{ + unsigned long flags; + + if (!fimc_capture_active(fimc)) + return 0; + + spin_lock_irqsave(&fimc->slock, flags); + set_bit(ST_CAPT_SHUT, &fimc->state); + fimc_deactivate_capture(fimc); + spin_unlock_irqrestore(&fimc->slock, flags); + + wait_event_timeout(fimc->irq_queue, + !test_bit(ST_CAPT_SHUT, &fimc->state), + (2*HZ/10)); /* 200 ms */ + + return fimc_capture_state_cleanup(fimc, suspend); +} + +/** + * fimc_capture_config_update - apply the camera interface configuration + * + * To be called from within the interrupt handler with fimc.slock + * spinlock held. It updates the camera pixel crop, rotation and + * image flip in H/W. + */ +int fimc_capture_config_update(struct fimc_ctx *ctx) +{ + struct fimc_dev *fimc = ctx->fimc_dev; + int ret; + + if (!test_bit(ST_CAPT_APPLY_CFG, &fimc->state)) + return 0; + + spin_lock(&ctx->slock); + fimc_hw_set_camera_offset(fimc, &ctx->s_frame); + ret = fimc_set_scaler_info(ctx); + if (ret == 0) { + fimc_hw_set_prescaler(ctx); + fimc_hw_set_mainscaler(ctx); + fimc_hw_set_target_format(ctx); + fimc_hw_set_rotation(ctx); + fimc_prepare_dma_offset(ctx, &ctx->d_frame); + fimc_hw_set_out_dma(ctx); + if (fimc->variant->has_alpha) + fimc_hw_set_rgb_alpha(ctx); + clear_bit(ST_CAPT_APPLY_CFG, &fimc->state); + } + spin_unlock(&ctx->slock); + return ret; +} + +static int start_streaming(struct vb2_queue *q, unsigned int count) +{ + struct fimc_ctx *ctx = q->drv_priv; + struct fimc_dev *fimc = ctx->fimc_dev; + struct fimc_vid_cap *vid_cap = &fimc->vid_cap; + int min_bufs; + int ret; + + vid_cap->frame_count = 0; + + ret = fimc_init_capture(fimc); + if (ret) + goto error; + + set_bit(ST_CAPT_PEND, &fimc->state); + + min_bufs = fimc->vid_cap.reqbufs_count > 1 ? 2 : 1; + + if (vid_cap->active_buf_cnt >= min_bufs && + !test_and_set_bit(ST_CAPT_STREAM, &fimc->state)) { + fimc_activate_capture(ctx); + + if (!test_and_set_bit(ST_CAPT_ISP_STREAM, &fimc->state)) + fimc_pipeline_s_stream(fimc, 1); + } + + return 0; +error: + fimc_capture_state_cleanup(fimc, false); + return ret; +} + +static int stop_streaming(struct vb2_queue *q) +{ + struct fimc_ctx *ctx = q->drv_priv; + struct fimc_dev *fimc = ctx->fimc_dev; + + if (!fimc_capture_active(fimc)) + return -EINVAL; + + return fimc_stop_capture(fimc, false); +} + +int fimc_capture_suspend(struct fimc_dev *fimc) +{ + bool suspend = fimc_capture_busy(fimc); + + int ret = fimc_stop_capture(fimc, suspend); + if (ret) + return ret; + return fimc_pipeline_shutdown(fimc); +} + +static void buffer_queue(struct vb2_buffer *vb); + +int fimc_capture_resume(struct fimc_dev *fimc) +{ + struct fimc_vid_cap *vid_cap = &fimc->vid_cap; + struct fimc_vid_buffer *buf; + int i; + + if (!test_and_clear_bit(ST_CAPT_SUSPENDED, &fimc->state)) + return 0; + + INIT_LIST_HEAD(&fimc->vid_cap.active_buf_q); + vid_cap->buf_index = 0; + fimc_pipeline_initialize(fimc, &fimc->vid_cap.vfd->entity, + false); + fimc_init_capture(fimc); + + clear_bit(ST_CAPT_SUSPENDED, &fimc->state); + + for (i = 0; i < vid_cap->reqbufs_count; i++) { + if (list_empty(&vid_cap->pending_buf_q)) + break; + buf = fimc_pending_queue_pop(vid_cap); + buffer_queue(&buf->vb); + } + return 0; + +} + +static int queue_setup(struct vb2_queue *vq, const struct v4l2_format *pfmt, + unsigned int *num_buffers, unsigned int *num_planes, + unsigned int sizes[], void *allocators[]) +{ + const struct v4l2_pix_format_mplane *pixm = NULL; + struct fimc_ctx *ctx = vq->drv_priv; + struct fimc_frame *frame = &ctx->d_frame; + struct fimc_fmt *fmt = frame->fmt; + unsigned long wh; + int i; + + if (pfmt) { + pixm = &pfmt->fmt.pix_mp; + fmt = fimc_find_format(&pixm->pixelformat, NULL, + FMT_FLAGS_CAM | FMT_FLAGS_M2M, -1); + wh = pixm->width * pixm->height; + } else { + wh = frame->f_width * frame->f_height; + } + + if (fmt == NULL) + return -EINVAL; + + *num_planes = fmt->memplanes; + + for (i = 0; i < fmt->memplanes; i++) { + unsigned int size = (wh * fmt->depth[i]) / 8; + if (pixm) + sizes[i] = max(size, pixm->plane_fmt[i].sizeimage); + else + sizes[i] = size; + allocators[i] = ctx->fimc_dev->alloc_ctx; + } + + return 0; +} + +static int buffer_prepare(struct vb2_buffer *vb) +{ + struct vb2_queue *vq = vb->vb2_queue; + struct fimc_ctx *ctx = vq->drv_priv; + int i; + + if (ctx->d_frame.fmt == NULL) + return -EINVAL; + + for (i = 0; i < ctx->d_frame.fmt->memplanes; i++) { + unsigned long size = ctx->d_frame.payload[i]; + + if (vb2_plane_size(vb, i) < size) { + v4l2_err(ctx->fimc_dev->vid_cap.vfd, + "User buffer too small (%ld < %ld)\n", + vb2_plane_size(vb, i), size); + return -EINVAL; + } + vb2_set_plane_payload(vb, i, size); + } + + return 0; +} + +static void buffer_queue(struct vb2_buffer *vb) +{ + struct fimc_vid_buffer *buf + = container_of(vb, struct fimc_vid_buffer, vb); + struct fimc_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue); + struct fimc_dev *fimc = ctx->fimc_dev; + struct fimc_vid_cap *vid_cap = &fimc->vid_cap; + unsigned long flags; + int min_bufs; + + spin_lock_irqsave(&fimc->slock, flags); + fimc_prepare_addr(ctx, &buf->vb, &ctx->d_frame, &buf->paddr); + + if (!test_bit(ST_CAPT_SUSPENDED, &fimc->state) && + !test_bit(ST_CAPT_STREAM, &fimc->state) && + vid_cap->active_buf_cnt < FIMC_MAX_OUT_BUFS) { + /* Setup the buffer directly for processing. */ + int buf_id = (vid_cap->reqbufs_count == 1) ? -1 : + vid_cap->buf_index; + + fimc_hw_set_output_addr(fimc, &buf->paddr, buf_id); + buf->index = vid_cap->buf_index; + fimc_active_queue_add(vid_cap, buf); + + if (++vid_cap->buf_index >= FIMC_MAX_OUT_BUFS) + vid_cap->buf_index = 0; + } else { + fimc_pending_queue_add(vid_cap, buf); + } + + min_bufs = vid_cap->reqbufs_count > 1 ? 2 : 1; + + + if (vb2_is_streaming(&vid_cap->vbq) && + vid_cap->active_buf_cnt >= min_bufs && + !test_and_set_bit(ST_CAPT_STREAM, &fimc->state)) { + fimc_activate_capture(ctx); + spin_unlock_irqrestore(&fimc->slock, flags); + + if (!test_and_set_bit(ST_CAPT_ISP_STREAM, &fimc->state)) + fimc_pipeline_s_stream(fimc, 1); + return; + } + spin_unlock_irqrestore(&fimc->slock, flags); +} + +static void fimc_lock(struct vb2_queue *vq) +{ + struct fimc_ctx *ctx = vb2_get_drv_priv(vq); + mutex_lock(&ctx->fimc_dev->lock); +} + +static void fimc_unlock(struct vb2_queue *vq) +{ + struct fimc_ctx *ctx = vb2_get_drv_priv(vq); + mutex_unlock(&ctx->fimc_dev->lock); +} + +static struct vb2_ops fimc_capture_qops = { + .queue_setup = queue_setup, + .buf_prepare = buffer_prepare, + .buf_queue = buffer_queue, + .wait_prepare = fimc_unlock, + .wait_finish = fimc_lock, + .start_streaming = start_streaming, + .stop_streaming = stop_streaming, +}; + +/** + * fimc_capture_ctrls_create - initialize the control handler + * Initialize the capture video node control handler and fill it + * with the FIMC controls. Inherit any sensor's controls if the + * 'user_subdev_api' flag is false (default behaviour). + * This function need to be called with the graph mutex held. + */ +int fimc_capture_ctrls_create(struct fimc_dev *fimc) +{ + struct fimc_vid_cap *vid_cap = &fimc->vid_cap; + int ret; + + if (WARN_ON(vid_cap->ctx == NULL)) + return -ENXIO; + if (vid_cap->ctx->ctrls_rdy) + return 0; + + ret = fimc_ctrls_create(vid_cap->ctx); + if (ret || vid_cap->user_subdev_api) + return ret; + + return v4l2_ctrl_add_handler(&vid_cap->ctx->ctrl_handler, + fimc->pipeline.sensor->ctrl_handler); +} + +static int fimc_capture_set_default_format(struct fimc_dev *fimc); + +static int fimc_capture_open(struct file *file) +{ + struct fimc_dev *fimc = video_drvdata(file); + int ret = v4l2_fh_open(file); + + if (ret) + return ret; + + dbg("pid: %d, state: 0x%lx", task_pid_nr(current), fimc->state); + + /* Return if the corresponding video mem2mem node is already opened. */ + if (fimc_m2m_active(fimc)) + return -EBUSY; + + set_bit(ST_CAPT_BUSY, &fimc->state); + pm_runtime_get_sync(&fimc->pdev->dev); + + if (++fimc->vid_cap.refcnt == 1) { + ret = fimc_pipeline_initialize(fimc, + &fimc->vid_cap.vfd->entity, true); + if (ret < 0) { + dev_err(&fimc->pdev->dev, + "Video pipeline initialization failed\n"); + pm_runtime_put_sync(&fimc->pdev->dev); + fimc->vid_cap.refcnt--; + v4l2_fh_release(file); + clear_bit(ST_CAPT_BUSY, &fimc->state); + return ret; + } + ret = fimc_capture_ctrls_create(fimc); + + if (!ret && !fimc->vid_cap.user_subdev_api) + ret = fimc_capture_set_default_format(fimc); + } + return ret; +} + +static int fimc_capture_close(struct file *file) +{ + struct fimc_dev *fimc = video_drvdata(file); + + dbg("pid: %d, state: 0x%lx", task_pid_nr(current), fimc->state); + + if (--fimc->vid_cap.refcnt == 0) { + clear_bit(ST_CAPT_BUSY, &fimc->state); + fimc_stop_capture(fimc, false); + fimc_pipeline_shutdown(fimc); + clear_bit(ST_CAPT_SUSPENDED, &fimc->state); + } + + pm_runtime_put(&fimc->pdev->dev); + + if (fimc->vid_cap.refcnt == 0) { + vb2_queue_release(&fimc->vid_cap.vbq); + fimc_ctrls_delete(fimc->vid_cap.ctx); + } + return v4l2_fh_release(file); +} + +static unsigned int fimc_capture_poll(struct file *file, + struct poll_table_struct *wait) +{ + struct fimc_dev *fimc = video_drvdata(file); + + return vb2_poll(&fimc->vid_cap.vbq, file, wait); +} + +static int fimc_capture_mmap(struct file *file, struct vm_area_struct *vma) +{ + struct fimc_dev *fimc = video_drvdata(file); + + return vb2_mmap(&fimc->vid_cap.vbq, vma); +} + +static const struct v4l2_file_operations fimc_capture_fops = { + .owner = THIS_MODULE, + .open = fimc_capture_open, + .release = fimc_capture_close, + .poll = fimc_capture_poll, + .unlocked_ioctl = video_ioctl2, + .mmap = fimc_capture_mmap, +}; + +/* + * Format and crop negotiation helpers + */ + +static struct fimc_fmt *fimc_capture_try_format(struct fimc_ctx *ctx, + u32 *width, u32 *height, + u32 *code, u32 *fourcc, int pad) +{ + bool rotation = ctx->rotation == 90 || ctx->rotation == 270; + struct fimc_dev *fimc = ctx->fimc_dev; + struct samsung_fimc_variant *var = fimc->variant; + struct fimc_pix_limit *pl = var->pix_limit; + struct fimc_frame *dst = &ctx->d_frame; + u32 depth, min_w, max_w, min_h, align_h = 3; + u32 mask = FMT_FLAGS_CAM; + struct fimc_fmt *ffmt; + + /* Color conversion from/to JPEG is not supported */ + if (code && ctx->s_frame.fmt && pad == FIMC_SD_PAD_SOURCE && + fimc_fmt_is_jpeg(ctx->s_frame.fmt->color)) + *code = V4L2_MBUS_FMT_JPEG_1X8; + + if (fourcc && *fourcc != V4L2_PIX_FMT_JPEG && pad != FIMC_SD_PAD_SINK) + mask |= FMT_FLAGS_M2M; + + ffmt = fimc_find_format(fourcc, code, mask, 0); + if (WARN_ON(!ffmt)) + return NULL; + if (code) + *code = ffmt->mbus_code; + if (fourcc) + *fourcc = ffmt->fourcc; + + if (pad == FIMC_SD_PAD_SINK) { + max_w = fimc_fmt_is_jpeg(ffmt->color) ? + pl->scaler_dis_w : pl->scaler_en_w; + /* Apply the camera input interface pixel constraints */ + v4l_bound_align_image(width, max_t(u32, *width, 32), max_w, 4, + height, max_t(u32, *height, 32), + FIMC_CAMIF_MAX_HEIGHT, + fimc_fmt_is_jpeg(ffmt->color) ? 3 : 1, + 0); + return ffmt; + } + /* Can't scale or crop in transparent (JPEG) transfer mode */ + if (fimc_fmt_is_jpeg(ffmt->color)) { + *width = ctx->s_frame.f_width; + *height = ctx->s_frame.f_height; + return ffmt; + } + /* Apply the scaler and the output DMA constraints */ + max_w = rotation ? pl->out_rot_en_w : pl->out_rot_dis_w; + min_w = ctx->state & FIMC_DST_CROP ? dst->width : var->min_out_pixsize; + min_h = ctx->state & FIMC_DST_CROP ? dst->height : var->min_out_pixsize; + if (var->min_vsize_align == 1 && !rotation) + align_h = fimc_fmt_is_rgb(ffmt->color) ? 0 : 1; + + depth = fimc_get_format_depth(ffmt); + v4l_bound_align_image(width, min_w, max_w, + ffs(var->min_out_pixsize) - 1, + height, min_h, FIMC_CAMIF_MAX_HEIGHT, + align_h, + 64/(ALIGN(depth, 8))); + + dbg("pad%d: code: 0x%x, %dx%d. dst fmt: %dx%d", + pad, code ? *code : 0, *width, *height, + dst->f_width, dst->f_height); + + return ffmt; +} + +static void fimc_capture_try_crop(struct fimc_ctx *ctx, struct v4l2_rect *r, + int pad) +{ + bool rotate = ctx->rotation == 90 || ctx->rotation == 270; + struct fimc_dev *fimc = ctx->fimc_dev; + struct samsung_fimc_variant *var = fimc->variant; + struct fimc_pix_limit *pl = var->pix_limit; + struct fimc_frame *sink = &ctx->s_frame; + u32 max_w, max_h, min_w = 0, min_h = 0, min_sz; + u32 align_sz = 0, align_h = 4; + u32 max_sc_h, max_sc_v; + + /* In JPEG transparent transfer mode cropping is not supported */ + if (fimc_fmt_is_jpeg(ctx->d_frame.fmt->color)) { + r->width = sink->f_width; + r->height = sink->f_height; + r->left = r->top = 0; + return; + } + if (pad == FIMC_SD_PAD_SOURCE) { + if (ctx->rotation != 90 && ctx->rotation != 270) + align_h = 1; + max_sc_h = min(SCALER_MAX_HRATIO, 1 << (ffs(sink->width) - 3)); + max_sc_v = min(SCALER_MAX_VRATIO, 1 << (ffs(sink->height) - 1)); + min_sz = var->min_out_pixsize; + } else { + u32 depth = fimc_get_format_depth(sink->fmt); + align_sz = 64/ALIGN(depth, 8); + min_sz = var->min_inp_pixsize; + min_w = min_h = min_sz; + max_sc_h = max_sc_v = 1; + } + /* + * For the crop rectangle at source pad the following constraints + * must be met: + * - it must fit in the sink pad format rectangle (f_width/f_height); + * - maximum downscaling ratio is 64; + * - maximum crop size depends if the rotator is used or not; + * - the sink pad format width/height must be 4 multiple of the + * prescaler ratios determined by sink pad size and source pad crop, + * the prescaler ratio is returned by fimc_get_scaler_factor(). + */ + max_w = min_t(u32, + rotate ? pl->out_rot_en_w : pl->out_rot_dis_w, + rotate ? sink->f_height : sink->f_width); + max_h = min_t(u32, FIMC_CAMIF_MAX_HEIGHT, sink->f_height); + if (pad == FIMC_SD_PAD_SOURCE) { + min_w = min_t(u32, max_w, sink->f_width / max_sc_h); + min_h = min_t(u32, max_h, sink->f_height / max_sc_v); + if (rotate) { + swap(max_sc_h, max_sc_v); + swap(min_w, min_h); + } + } + v4l_bound_align_image(&r->width, min_w, max_w, ffs(min_sz) - 1, + &r->height, min_h, max_h, align_h, + align_sz); + /* Adjust left/top if cropping rectangle is out of bounds */ + r->left = clamp_t(u32, r->left, 0, sink->f_width - r->width); + r->top = clamp_t(u32, r->top, 0, sink->f_height - r->height); + r->left = round_down(r->left, var->hor_offs_align); + + dbg("pad%d: (%d,%d)/%dx%d, sink fmt: %dx%d", + pad, r->left, r->top, r->width, r->height, + sink->f_width, sink->f_height); +} + +/* + * The video node ioctl operations + */ +static int fimc_vidioc_querycap_capture(struct file *file, void *priv, + struct v4l2_capability *cap) +{ + struct fimc_dev *fimc = video_drvdata(file); + + strncpy(cap->driver, fimc->pdev->name, sizeof(cap->driver) - 1); + strncpy(cap->card, fimc->pdev->name, sizeof(cap->card) - 1); + cap->bus_info[0] = 0; + cap->capabilities = V4L2_CAP_STREAMING | V4L2_CAP_VIDEO_CAPTURE_MPLANE; + + return 0; +} + +static int fimc_cap_enum_fmt_mplane(struct file *file, void *priv, + struct v4l2_fmtdesc *f) +{ + struct fimc_fmt *fmt; + + fmt = fimc_find_format(NULL, NULL, FMT_FLAGS_CAM | FMT_FLAGS_M2M, + f->index); + if (!fmt) + return -EINVAL; + strncpy(f->description, fmt->name, sizeof(f->description) - 1); + f->pixelformat = fmt->fourcc; + if (fmt->fourcc == V4L2_MBUS_FMT_JPEG_1X8) + f->flags |= V4L2_FMT_FLAG_COMPRESSED; + return 0; +} + +/** + * fimc_pipeline_try_format - negotiate and/or set formats at pipeline + * elements + * @ctx: FIMC capture context + * @tfmt: media bus format to try/set on subdevs + * @fmt_id: fimc pixel format id corresponding to returned @tfmt (output) + * @set: true to set format on subdevs, false to try only + */ +static int fimc_pipeline_try_format(struct fimc_ctx *ctx, + struct v4l2_mbus_framefmt *tfmt, + struct fimc_fmt **fmt_id, + bool set) +{ + struct fimc_dev *fimc = ctx->fimc_dev; + struct v4l2_subdev *sd = fimc->pipeline.sensor; + struct v4l2_subdev *csis = fimc->pipeline.csis; + struct v4l2_subdev_format sfmt; + struct v4l2_mbus_framefmt *mf = &sfmt.format; + struct fimc_fmt *ffmt = NULL; + int ret, i = 0; + + if (WARN_ON(!sd || !tfmt)) + return -EINVAL; + + memset(&sfmt, 0, sizeof(sfmt)); + sfmt.format = *tfmt; + + sfmt.which = set ? V4L2_SUBDEV_FORMAT_ACTIVE : V4L2_SUBDEV_FORMAT_TRY; + while (1) { + ffmt = fimc_find_format(NULL, mf->code != 0 ? &mf->code : NULL, + FMT_FLAGS_CAM, i++); + if (ffmt == NULL) { + /* + * Notify user-space if common pixel code for + * host and sensor does not exist. + */ + return -EINVAL; + } + mf->code = tfmt->code = ffmt->mbus_code; + + ret = v4l2_subdev_call(sd, pad, set_fmt, NULL, &sfmt); + if (ret) + return ret; + if (mf->code != tfmt->code) { + mf->code = 0; + continue; + } + if (mf->width != tfmt->width || mf->height != tfmt->height) { + u32 fcc = ffmt->fourcc; + tfmt->width = mf->width; + tfmt->height = mf->height; + ffmt = fimc_capture_try_format(ctx, + &tfmt->width, &tfmt->height, + NULL, &fcc, FIMC_SD_PAD_SOURCE); + if (ffmt && ffmt->mbus_code) + mf->code = ffmt->mbus_code; + if (mf->width != tfmt->width || + mf->height != tfmt->height) + continue; + tfmt->code = mf->code; + } + if (csis) + ret = v4l2_subdev_call(csis, pad, set_fmt, NULL, &sfmt); + + if (mf->code == tfmt->code && + mf->width == tfmt->width && mf->height == tfmt->height) + break; + } + + if (fmt_id && ffmt) + *fmt_id = ffmt; + *tfmt = *mf; + + dbg("code: 0x%x, %dx%d, %p", mf->code, mf->width, mf->height, ffmt); + return 0; +} + +static int fimc_cap_g_fmt_mplane(struct file *file, void *fh, + struct v4l2_format *f) +{ + struct fimc_dev *fimc = video_drvdata(file); + struct fimc_ctx *ctx = fimc->vid_cap.ctx; + + if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) + return -EINVAL; + + return fimc_fill_format(&ctx->d_frame, f); +} + +static int fimc_cap_try_fmt_mplane(struct file *file, void *fh, + struct v4l2_format *f) +{ + struct v4l2_pix_format_mplane *pix = &f->fmt.pix_mp; + struct fimc_dev *fimc = video_drvdata(file); + struct fimc_ctx *ctx = fimc->vid_cap.ctx; + struct v4l2_mbus_framefmt mf; + struct fimc_fmt *ffmt = NULL; + + if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) + return -EINVAL; + + if (pix->pixelformat == V4L2_PIX_FMT_JPEG) { + fimc_capture_try_format(ctx, &pix->width, &pix->height, + NULL, &pix->pixelformat, + FIMC_SD_PAD_SINK); + ctx->s_frame.f_width = pix->width; + ctx->s_frame.f_height = pix->height; + } + ffmt = fimc_capture_try_format(ctx, &pix->width, &pix->height, + NULL, &pix->pixelformat, + FIMC_SD_PAD_SOURCE); + if (!ffmt) + return -EINVAL; + + if (!fimc->vid_cap.user_subdev_api) { + mf.width = pix->width; + mf.height = pix->height; + mf.code = ffmt->mbus_code; + fimc_md_graph_lock(fimc); + fimc_pipeline_try_format(ctx, &mf, &ffmt, false); + fimc_md_graph_unlock(fimc); + + pix->width = mf.width; + pix->height = mf.height; + if (ffmt) + pix->pixelformat = ffmt->fourcc; + } + + fimc_adjust_mplane_format(ffmt, pix->width, pix->height, pix); + return 0; +} + +static void fimc_capture_mark_jpeg_xfer(struct fimc_ctx *ctx, bool jpeg) +{ + ctx->scaler.enabled = !jpeg; + fimc_ctrls_activate(ctx, !jpeg); + + if (jpeg) + set_bit(ST_CAPT_JPEG, &ctx->fimc_dev->state); + else + clear_bit(ST_CAPT_JPEG, &ctx->fimc_dev->state); +} + +static int fimc_capture_set_format(struct fimc_dev *fimc, struct v4l2_format *f) +{ + struct fimc_ctx *ctx = fimc->vid_cap.ctx; + struct v4l2_pix_format_mplane *pix = &f->fmt.pix_mp; + struct v4l2_mbus_framefmt *mf = &fimc->vid_cap.mf; + struct fimc_frame *ff = &ctx->d_frame; + struct fimc_fmt *s_fmt = NULL; + int ret, i; + + if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) + return -EINVAL; + if (vb2_is_busy(&fimc->vid_cap.vbq)) + return -EBUSY; + + /* Pre-configure format at camera interface input, for JPEG only */ + if (pix->pixelformat == V4L2_PIX_FMT_JPEG) { + fimc_capture_try_format(ctx, &pix->width, &pix->height, + NULL, &pix->pixelformat, + FIMC_SD_PAD_SINK); + ctx->s_frame.f_width = pix->width; + ctx->s_frame.f_height = pix->height; + } + /* Try the format at the scaler and the DMA output */ + ff->fmt = fimc_capture_try_format(ctx, &pix->width, &pix->height, + NULL, &pix->pixelformat, + FIMC_SD_PAD_SOURCE); + if (!ff->fmt) + return -EINVAL; + + /* Update RGB Alpha control state and value range */ + fimc_alpha_ctrl_update(ctx); + + /* Try to match format at the host and the sensor */ + if (!fimc->vid_cap.user_subdev_api) { + mf->code = ff->fmt->mbus_code; + mf->width = pix->width; + mf->height = pix->height; + + fimc_md_graph_lock(fimc); + ret = fimc_pipeline_try_format(ctx, mf, &s_fmt, true); + fimc_md_graph_unlock(fimc); + if (ret) + return ret; + pix->width = mf->width; + pix->height = mf->height; + } + fimc_adjust_mplane_format(ff->fmt, pix->width, pix->height, pix); + for (i = 0; i < ff->fmt->colplanes; i++) + ff->payload[i] = + (pix->width * pix->height * ff->fmt->depth[i]) / 8; + + set_frame_bounds(ff, pix->width, pix->height); + /* Reset the composition rectangle if not yet configured */ + if (!(ctx->state & FIMC_DST_CROP)) + set_frame_crop(ff, 0, 0, pix->width, pix->height); + + fimc_capture_mark_jpeg_xfer(ctx, fimc_fmt_is_jpeg(ff->fmt->color)); + + /* Reset cropping and set format at the camera interface input */ + if (!fimc->vid_cap.user_subdev_api) { + ctx->s_frame.fmt = s_fmt; + set_frame_bounds(&ctx->s_frame, pix->width, pix->height); + set_frame_crop(&ctx->s_frame, 0, 0, pix->width, pix->height); + } + + return ret; +} + +static int fimc_cap_s_fmt_mplane(struct file *file, void *priv, + struct v4l2_format *f) +{ + struct fimc_dev *fimc = video_drvdata(file); + + return fimc_capture_set_format(fimc, f); +} + +static int fimc_cap_enum_input(struct file *file, void *priv, + struct v4l2_input *i) +{ + struct fimc_dev *fimc = video_drvdata(file); + struct v4l2_subdev *sd = fimc->pipeline.sensor; + + if (i->index != 0) + return -EINVAL; + + i->type = V4L2_INPUT_TYPE_CAMERA; + if (sd) + strlcpy(i->name, sd->name, sizeof(i->name)); + return 0; +} + +static int fimc_cap_s_input(struct file *file, void *priv, unsigned int i) +{ + return i == 0 ? i : -EINVAL; +} + +static int fimc_cap_g_input(struct file *file, void *priv, unsigned int *i) +{ + *i = 0; + return 0; +} + +/** + * fimc_pipeline_validate - check for formats inconsistencies + * between source and sink pad of each link + * + * Return 0 if all formats match or -EPIPE otherwise. + */ +static int fimc_pipeline_validate(struct fimc_dev *fimc) +{ + struct v4l2_subdev_format sink_fmt, src_fmt; + struct fimc_vid_cap *vid_cap = &fimc->vid_cap; + struct v4l2_subdev *sd; + struct media_pad *pad; + int ret; + + /* Start with the video capture node pad */ + pad = media_entity_remote_source(&vid_cap->vd_pad); + if (pad == NULL) + return -EPIPE; + /* FIMC.{N} subdevice */ + sd = media_entity_to_v4l2_subdev(pad->entity); + + while (1) { + /* Retrieve format at the sink pad */ + pad = &sd->entity.pads[0]; + if (!(pad->flags & MEDIA_PAD_FL_SINK)) + break; + /* Don't call FIMC subdev operation to avoid nested locking */ + if (sd == fimc->vid_cap.subdev) { + struct fimc_frame *ff = &vid_cap->ctx->s_frame; + sink_fmt.format.width = ff->f_width; + sink_fmt.format.height = ff->f_height; + sink_fmt.format.code = ff->fmt ? ff->fmt->mbus_code : 0; + } else { + sink_fmt.pad = pad->index; + sink_fmt.which = V4L2_SUBDEV_FORMAT_ACTIVE; + ret = v4l2_subdev_call(sd, pad, get_fmt, NULL, &sink_fmt); + if (ret < 0 && ret != -ENOIOCTLCMD) + return -EPIPE; + } + /* Retrieve format at the source pad */ + pad = media_entity_remote_source(pad); + if (pad == NULL || + media_entity_type(pad->entity) != MEDIA_ENT_T_V4L2_SUBDEV) + break; + + sd = media_entity_to_v4l2_subdev(pad->entity); + src_fmt.pad = pad->index; + src_fmt.which = V4L2_SUBDEV_FORMAT_ACTIVE; + ret = v4l2_subdev_call(sd, pad, get_fmt, NULL, &src_fmt); + if (ret < 0 && ret != -ENOIOCTLCMD) + return -EPIPE; + + if (src_fmt.format.width != sink_fmt.format.width || + src_fmt.format.height != sink_fmt.format.height || + src_fmt.format.code != sink_fmt.format.code) + return -EPIPE; + } + return 0; +} + +static int fimc_cap_streamon(struct file *file, void *priv, + enum v4l2_buf_type type) +{ + struct fimc_dev *fimc = video_drvdata(file); + struct fimc_pipeline *p = &fimc->pipeline; + int ret; + + if (fimc_capture_active(fimc)) + return -EBUSY; + + media_entity_pipeline_start(&p->sensor->entity, p->pipe); + + if (fimc->vid_cap.user_subdev_api) { + ret = fimc_pipeline_validate(fimc); + if (ret) + return ret; + } + return vb2_streamon(&fimc->vid_cap.vbq, type); +} + +static int fimc_cap_streamoff(struct file *file, void *priv, + enum v4l2_buf_type type) +{ + struct fimc_dev *fimc = video_drvdata(file); + struct v4l2_subdev *sd = fimc->pipeline.sensor; + int ret; + + ret = vb2_streamoff(&fimc->vid_cap.vbq, type); + if (ret == 0) + media_entity_pipeline_stop(&sd->entity); + return ret; +} + +static int fimc_cap_reqbufs(struct file *file, void *priv, + struct v4l2_requestbuffers *reqbufs) +{ + struct fimc_dev *fimc = video_drvdata(file); + int ret = vb2_reqbufs(&fimc->vid_cap.vbq, reqbufs); + + if (!ret) + fimc->vid_cap.reqbufs_count = reqbufs->count; + return ret; +} + +static int fimc_cap_querybuf(struct file *file, void *priv, + struct v4l2_buffer *buf) +{ + struct fimc_dev *fimc = video_drvdata(file); + + return vb2_querybuf(&fimc->vid_cap.vbq, buf); +} + +static int fimc_cap_qbuf(struct file *file, void *priv, + struct v4l2_buffer *buf) +{ + struct fimc_dev *fimc = video_drvdata(file); + + return vb2_qbuf(&fimc->vid_cap.vbq, buf); +} + +static int fimc_cap_dqbuf(struct file *file, void *priv, + struct v4l2_buffer *buf) +{ + struct fimc_dev *fimc = video_drvdata(file); + + return vb2_dqbuf(&fimc->vid_cap.vbq, buf, file->f_flags & O_NONBLOCK); +} + +static int fimc_cap_create_bufs(struct file *file, void *priv, + struct v4l2_create_buffers *create) +{ + struct fimc_dev *fimc = video_drvdata(file); + + return vb2_create_bufs(&fimc->vid_cap.vbq, create); +} + +static int fimc_cap_prepare_buf(struct file *file, void *priv, + struct v4l2_buffer *b) +{ + struct fimc_dev *fimc = video_drvdata(file); + + return vb2_prepare_buf(&fimc->vid_cap.vbq, b); +} + +static int fimc_cap_g_selection(struct file *file, void *fh, + struct v4l2_selection *s) +{ + struct fimc_dev *fimc = video_drvdata(file); + struct fimc_ctx *ctx = fimc->vid_cap.ctx; + struct fimc_frame *f = &ctx->s_frame; + + if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) + return -EINVAL; + + switch (s->target) { + case V4L2_SEL_TGT_COMPOSE_DEFAULT: + case V4L2_SEL_TGT_COMPOSE_BOUNDS: + f = &ctx->d_frame; + case V4L2_SEL_TGT_CROP_BOUNDS: + case V4L2_SEL_TGT_CROP_DEFAULT: + s->r.left = 0; + s->r.top = 0; + s->r.width = f->o_width; + s->r.height = f->o_height; + return 0; + + case V4L2_SEL_TGT_COMPOSE_ACTIVE: + f = &ctx->d_frame; + case V4L2_SEL_TGT_CROP_ACTIVE: + s->r.left = f->offs_h; + s->r.top = f->offs_v; + s->r.width = f->width; + s->r.height = f->height; + return 0; + } + + return -EINVAL; +} + +/* Return 1 if rectangle a is enclosed in rectangle b, or 0 otherwise. */ +int enclosed_rectangle(struct v4l2_rect *a, struct v4l2_rect *b) +{ + if (a->left < b->left || a->top < b->top) + return 0; + if (a->left + a->width > b->left + b->width) + return 0; + if (a->top + a->height > b->top + b->height) + return 0; + + return 1; +} + +static int fimc_cap_s_selection(struct file *file, void *fh, + struct v4l2_selection *s) +{ + struct fimc_dev *fimc = video_drvdata(file); + struct fimc_ctx *ctx = fimc->vid_cap.ctx; + struct v4l2_rect rect = s->r; + struct fimc_frame *f; + unsigned long flags; + unsigned int pad; + + if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) + return -EINVAL; + + switch (s->target) { + case V4L2_SEL_TGT_COMPOSE_DEFAULT: + case V4L2_SEL_TGT_COMPOSE_BOUNDS: + case V4L2_SEL_TGT_COMPOSE_ACTIVE: + f = &ctx->d_frame; + pad = FIMC_SD_PAD_SOURCE; + break; + case V4L2_SEL_TGT_CROP_BOUNDS: + case V4L2_SEL_TGT_CROP_DEFAULT: + case V4L2_SEL_TGT_CROP_ACTIVE: + f = &ctx->s_frame; + pad = FIMC_SD_PAD_SINK; + break; + default: + return -EINVAL; + } + + fimc_capture_try_crop(ctx, &rect, pad); + + if (s->flags & V4L2_SEL_FLAG_LE && + !enclosed_rectangle(&rect, &s->r)) + return -ERANGE; + + if (s->flags & V4L2_SEL_FLAG_GE && + !enclosed_rectangle(&s->r, &rect)) + return -ERANGE; + + s->r = rect; + spin_lock_irqsave(&fimc->slock, flags); + set_frame_crop(f, s->r.left, s->r.top, s->r.width, + s->r.height); + spin_unlock_irqrestore(&fimc->slock, flags); + + set_bit(ST_CAPT_APPLY_CFG, &fimc->state); + return 0; +} + +static const struct v4l2_ioctl_ops fimc_capture_ioctl_ops = { + .vidioc_querycap = fimc_vidioc_querycap_capture, + + .vidioc_enum_fmt_vid_cap_mplane = fimc_cap_enum_fmt_mplane, + .vidioc_try_fmt_vid_cap_mplane = fimc_cap_try_fmt_mplane, + .vidioc_s_fmt_vid_cap_mplane = fimc_cap_s_fmt_mplane, + .vidioc_g_fmt_vid_cap_mplane = fimc_cap_g_fmt_mplane, + + .vidioc_reqbufs = fimc_cap_reqbufs, + .vidioc_querybuf = fimc_cap_querybuf, + + .vidioc_qbuf = fimc_cap_qbuf, + .vidioc_dqbuf = fimc_cap_dqbuf, + + .vidioc_prepare_buf = fimc_cap_prepare_buf, + .vidioc_create_bufs = fimc_cap_create_bufs, + + .vidioc_streamon = fimc_cap_streamon, + .vidioc_streamoff = fimc_cap_streamoff, + + .vidioc_g_selection = fimc_cap_g_selection, + .vidioc_s_selection = fimc_cap_s_selection, + + .vidioc_enum_input = fimc_cap_enum_input, + .vidioc_s_input = fimc_cap_s_input, + .vidioc_g_input = fimc_cap_g_input, +}; + +/* Capture subdev media entity operations */ +static int fimc_link_setup(struct media_entity *entity, + const struct media_pad *local, + const struct media_pad *remote, u32 flags) +{ + struct v4l2_subdev *sd = media_entity_to_v4l2_subdev(entity); + struct fimc_dev *fimc = v4l2_get_subdevdata(sd); + + if (media_entity_type(remote->entity) != MEDIA_ENT_T_V4L2_SUBDEV) + return -EINVAL; + + if (WARN_ON(fimc == NULL)) + return 0; + + dbg("%s --> %s, flags: 0x%x. input: 0x%x", + local->entity->name, remote->entity->name, flags, + fimc->vid_cap.input); + + if (flags & MEDIA_LNK_FL_ENABLED) { + if (fimc->vid_cap.input != 0) + return -EBUSY; + fimc->vid_cap.input = sd->grp_id; + return 0; + } + + fimc->vid_cap.input = 0; + return 0; +} + +static const struct media_entity_operations fimc_sd_media_ops = { + .link_setup = fimc_link_setup, +}; + +/** + * fimc_sensor_notify - v4l2_device notification from a sensor subdev + * @sd: pointer to a subdev generating the notification + * @notification: the notification type, must be S5P_FIMC_TX_END_NOTIFY + * @arg: pointer to an u32 type integer that stores the frame payload value + * + * The End Of Frame notification sent by sensor subdev in its still capture + * mode. If there is only a single VSYNC generated by the sensor at the + * beginning of a frame transmission, FIMC does not issue the LastIrq + * (end of frame) interrupt. And this notification is used to complete the + * frame capture and returning a buffer to user-space. Subdev drivers should + * call this notification from their last 'End of frame capture' interrupt. + */ +void fimc_sensor_notify(struct v4l2_subdev *sd, unsigned int notification, + void *arg) +{ + struct fimc_sensor_info *sensor; + struct fimc_vid_buffer *buf; + struct fimc_md *fmd; + struct fimc_dev *fimc; + unsigned long flags; + + if (sd == NULL) + return; + + sensor = v4l2_get_subdev_hostdata(sd); + fmd = entity_to_fimc_mdev(&sd->entity); + + spin_lock_irqsave(&fmd->slock, flags); + fimc = sensor ? sensor->host : NULL; + + if (fimc && arg && notification == S5P_FIMC_TX_END_NOTIFY && + test_bit(ST_CAPT_PEND, &fimc->state)) { + unsigned long irq_flags; + spin_lock_irqsave(&fimc->slock, irq_flags); + if (!list_empty(&fimc->vid_cap.active_buf_q)) { + buf = list_entry(fimc->vid_cap.active_buf_q.next, + struct fimc_vid_buffer, list); + vb2_set_plane_payload(&buf->vb, 0, *((u32 *)arg)); + } + fimc_capture_irq_handler(fimc, true); + fimc_deactivate_capture(fimc); + spin_unlock_irqrestore(&fimc->slock, irq_flags); + } + spin_unlock_irqrestore(&fmd->slock, flags); +} + +static int fimc_subdev_enum_mbus_code(struct v4l2_subdev *sd, + struct v4l2_subdev_fh *fh, + struct v4l2_subdev_mbus_code_enum *code) +{ + struct fimc_fmt *fmt; + + fmt = fimc_find_format(NULL, NULL, FMT_FLAGS_CAM, code->index); + if (!fmt) + return -EINVAL; + code->code = fmt->mbus_code; + return 0; +} + +static int fimc_subdev_get_fmt(struct v4l2_subdev *sd, + struct v4l2_subdev_fh *fh, + struct v4l2_subdev_format *fmt) +{ + struct fimc_dev *fimc = v4l2_get_subdevdata(sd); + struct fimc_ctx *ctx = fimc->vid_cap.ctx; + struct v4l2_mbus_framefmt *mf; + struct fimc_frame *ff; + + if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) { + mf = v4l2_subdev_get_try_format(fh, fmt->pad); + fmt->format = *mf; + return 0; + } + mf = &fmt->format; + mf->colorspace = V4L2_COLORSPACE_JPEG; + ff = fmt->pad == FIMC_SD_PAD_SINK ? &ctx->s_frame : &ctx->d_frame; + + mutex_lock(&fimc->lock); + /* The pixel code is same on both input and output pad */ + if (!WARN_ON(ctx->s_frame.fmt == NULL)) + mf->code = ctx->s_frame.fmt->mbus_code; + mf->width = ff->f_width; + mf->height = ff->f_height; + mutex_unlock(&fimc->lock); + + return 0; +} + +static int fimc_subdev_set_fmt(struct v4l2_subdev *sd, + struct v4l2_subdev_fh *fh, + struct v4l2_subdev_format *fmt) +{ + struct fimc_dev *fimc = v4l2_get_subdevdata(sd); + struct v4l2_mbus_framefmt *mf = &fmt->format; + struct fimc_ctx *ctx = fimc->vid_cap.ctx; + struct fimc_frame *ff; + struct fimc_fmt *ffmt; + + dbg("pad%d: code: 0x%x, %dx%d", + fmt->pad, mf->code, mf->width, mf->height); + + if (fmt->pad == FIMC_SD_PAD_SOURCE && + vb2_is_busy(&fimc->vid_cap.vbq)) + return -EBUSY; + + mutex_lock(&fimc->lock); + ffmt = fimc_capture_try_format(ctx, &mf->width, &mf->height, + &mf->code, NULL, fmt->pad); + mutex_unlock(&fimc->lock); + mf->colorspace = V4L2_COLORSPACE_JPEG; + + if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) { + mf = v4l2_subdev_get_try_format(fh, fmt->pad); + *mf = fmt->format; + return 0; + } + /* Update RGB Alpha control state and value range */ + fimc_alpha_ctrl_update(ctx); + + fimc_capture_mark_jpeg_xfer(ctx, fimc_fmt_is_jpeg(ffmt->color)); + + ff = fmt->pad == FIMC_SD_PAD_SINK ? + &ctx->s_frame : &ctx->d_frame; + + mutex_lock(&fimc->lock); + set_frame_bounds(ff, mf->width, mf->height); + fimc->vid_cap.mf = *mf; + ff->fmt = ffmt; + + /* Reset the crop rectangle if required. */ + if (!(fmt->pad == FIMC_SD_PAD_SOURCE && (ctx->state & FIMC_DST_CROP))) + set_frame_crop(ff, 0, 0, mf->width, mf->height); + + if (fmt->pad == FIMC_SD_PAD_SINK) + ctx->state &= ~FIMC_DST_CROP; + mutex_unlock(&fimc->lock); + return 0; +} + +static int fimc_subdev_get_crop(struct v4l2_subdev *sd, + struct v4l2_subdev_fh *fh, + struct v4l2_subdev_crop *crop) +{ + struct fimc_dev *fimc = v4l2_get_subdevdata(sd); + struct fimc_ctx *ctx = fimc->vid_cap.ctx; + struct v4l2_rect *r = &crop->rect; + struct fimc_frame *ff; + + if (crop->which == V4L2_SUBDEV_FORMAT_TRY) { + crop->rect = *v4l2_subdev_get_try_crop(fh, crop->pad); + return 0; + } + ff = crop->pad == FIMC_SD_PAD_SINK ? + &ctx->s_frame : &ctx->d_frame; + + mutex_lock(&fimc->lock); + r->left = ff->offs_h; + r->top = ff->offs_v; + r->width = ff->width; + r->height = ff->height; + mutex_unlock(&fimc->lock); + + dbg("ff:%p, pad%d: l:%d, t:%d, %dx%d, f_w: %d, f_h: %d", + ff, crop->pad, r->left, r->top, r->width, r->height, + ff->f_width, ff->f_height); + + return 0; +} + +static int fimc_subdev_set_crop(struct v4l2_subdev *sd, + struct v4l2_subdev_fh *fh, + struct v4l2_subdev_crop *crop) +{ + struct fimc_dev *fimc = v4l2_get_subdevdata(sd); + struct fimc_ctx *ctx = fimc->vid_cap.ctx; + struct v4l2_rect *r = &crop->rect; + struct fimc_frame *ff; + unsigned long flags; + + dbg("(%d,%d)/%dx%d", r->left, r->top, r->width, r->height); + + ff = crop->pad == FIMC_SD_PAD_SOURCE ? + &ctx->d_frame : &ctx->s_frame; + + mutex_lock(&fimc->lock); + fimc_capture_try_crop(ctx, r, crop->pad); + + if (crop->which == V4L2_SUBDEV_FORMAT_TRY) { + mutex_unlock(&fimc->lock); + *v4l2_subdev_get_try_crop(fh, crop->pad) = *r; + return 0; + } + spin_lock_irqsave(&fimc->slock, flags); + set_frame_crop(ff, r->left, r->top, r->width, r->height); + if (crop->pad == FIMC_SD_PAD_SOURCE) + ctx->state |= FIMC_DST_CROP; + + set_bit(ST_CAPT_APPLY_CFG, &fimc->state); + spin_unlock_irqrestore(&fimc->slock, flags); + + dbg("pad%d: (%d,%d)/%dx%d", crop->pad, r->left, r->top, + r->width, r->height); + + mutex_unlock(&fimc->lock); + return 0; +} + +static struct v4l2_subdev_pad_ops fimc_subdev_pad_ops = { + .enum_mbus_code = fimc_subdev_enum_mbus_code, + .get_fmt = fimc_subdev_get_fmt, + .set_fmt = fimc_subdev_set_fmt, + .get_crop = fimc_subdev_get_crop, + .set_crop = fimc_subdev_set_crop, +}; + +static struct v4l2_subdev_ops fimc_subdev_ops = { + .pad = &fimc_subdev_pad_ops, +}; + +static int fimc_create_capture_subdev(struct fimc_dev *fimc, + struct v4l2_device *v4l2_dev) +{ + struct v4l2_subdev *sd; + int ret; + + sd = kzalloc(sizeof(*sd), GFP_KERNEL); + if (!sd) + return -ENOMEM; + + v4l2_subdev_init(sd, &fimc_subdev_ops); + sd->flags = V4L2_SUBDEV_FL_HAS_DEVNODE; + snprintf(sd->name, sizeof(sd->name), "FIMC.%d", fimc->pdev->id); + + fimc->vid_cap.sd_pads[FIMC_SD_PAD_SINK].flags = MEDIA_PAD_FL_SINK; + fimc->vid_cap.sd_pads[FIMC_SD_PAD_SOURCE].flags = MEDIA_PAD_FL_SOURCE; + ret = media_entity_init(&sd->entity, FIMC_SD_PADS_NUM, + fimc->vid_cap.sd_pads, 0); + if (ret) + goto me_err; + ret = v4l2_device_register_subdev(v4l2_dev, sd); + if (ret) + goto sd_err; + + fimc->vid_cap.subdev = sd; + v4l2_set_subdevdata(sd, fimc); + sd->entity.ops = &fimc_sd_media_ops; + return 0; +sd_err: + media_entity_cleanup(&sd->entity); +me_err: + kfree(sd); + return ret; +} + +static void fimc_destroy_capture_subdev(struct fimc_dev *fimc) +{ + struct v4l2_subdev *sd = fimc->vid_cap.subdev; + + if (!sd) + return; + media_entity_cleanup(&sd->entity); + v4l2_device_unregister_subdev(sd); + kfree(sd); + fimc->vid_cap.subdev = NULL; +} + +/* Set default format at the sensor and host interface */ +static int fimc_capture_set_default_format(struct fimc_dev *fimc) +{ + struct v4l2_format fmt = { + .type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE, + .fmt.pix_mp = { + .width = 640, + .height = 480, + .pixelformat = V4L2_PIX_FMT_YUYV, + .field = V4L2_FIELD_NONE, + .colorspace = V4L2_COLORSPACE_JPEG, + }, + }; + + return fimc_capture_set_format(fimc, &fmt); +} + +/* fimc->lock must be already initialized */ +int fimc_register_capture_device(struct fimc_dev *fimc, + struct v4l2_device *v4l2_dev) +{ + struct video_device *vfd; + struct fimc_vid_cap *vid_cap; + struct fimc_ctx *ctx; + struct vb2_queue *q; + int ret = -ENOMEM; + + ctx = kzalloc(sizeof *ctx, GFP_KERNEL); + if (!ctx) + return -ENOMEM; + + ctx->fimc_dev = fimc; + ctx->in_path = FIMC_CAMERA; + ctx->out_path = FIMC_DMA; + ctx->state = FIMC_CTX_CAP; + ctx->s_frame.fmt = fimc_find_format(NULL, NULL, FMT_FLAGS_CAM, 0); + ctx->d_frame.fmt = fimc_find_format(NULL, NULL, FMT_FLAGS_CAM, 0); + + vfd = video_device_alloc(); + if (!vfd) { + v4l2_err(v4l2_dev, "Failed to allocate video device\n"); + goto err_vd_alloc; + } + + snprintf(vfd->name, sizeof(vfd->name), "%s.capture", + dev_name(&fimc->pdev->dev)); + + vfd->fops = &fimc_capture_fops; + vfd->ioctl_ops = &fimc_capture_ioctl_ops; + vfd->v4l2_dev = v4l2_dev; + vfd->minor = -1; + vfd->release = video_device_release; + vfd->lock = &fimc->lock; + video_set_drvdata(vfd, fimc); + + vid_cap = &fimc->vid_cap; + vid_cap->vfd = vfd; + vid_cap->active_buf_cnt = 0; + vid_cap->reqbufs_count = 0; + vid_cap->refcnt = 0; + + INIT_LIST_HEAD(&vid_cap->pending_buf_q); + INIT_LIST_HEAD(&vid_cap->active_buf_q); + spin_lock_init(&ctx->slock); + vid_cap->ctx = ctx; + + q = &fimc->vid_cap.vbq; + memset(q, 0, sizeof(*q)); + q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE; + q->io_modes = VB2_MMAP | VB2_USERPTR; + q->drv_priv = fimc->vid_cap.ctx; + q->ops = &fimc_capture_qops; + q->mem_ops = &vb2_dma_contig_memops; + q->buf_struct_size = sizeof(struct fimc_vid_buffer); + + vb2_queue_init(q); + + fimc->vid_cap.vd_pad.flags = MEDIA_PAD_FL_SINK; + ret = media_entity_init(&vfd->entity, 1, &fimc->vid_cap.vd_pad, 0); + if (ret) + goto err_ent; + ret = fimc_create_capture_subdev(fimc, v4l2_dev); + if (ret) + goto err_sd_reg; + + vfd->ctrl_handler = &ctx->ctrl_handler; + return 0; + +err_sd_reg: + media_entity_cleanup(&vfd->entity); +err_ent: + video_device_release(vfd); +err_vd_alloc: + kfree(ctx); + return ret; +} + +void fimc_unregister_capture_device(struct fimc_dev *fimc) +{ + struct video_device *vfd = fimc->vid_cap.vfd; + + if (vfd) { + media_entity_cleanup(&vfd->entity); + /* Can also be called if video device was + not registered */ + video_unregister_device(vfd); + } + fimc_destroy_capture_subdev(fimc); + kfree(fimc->vid_cap.ctx); + fimc->vid_cap.ctx = NULL; +} diff --git a/drivers/media/video/s5p-fimc/fimc-core.c b/drivers/media/video/s5p-fimc/fimc-core.c new file mode 100644 index 00000000..e09ba7b0 --- /dev/null +++ b/drivers/media/video/s5p-fimc/fimc-core.c @@ -0,0 +1,2045 @@ +/* + * Samsung S5P/EXYNOS4 SoC series camera interface (video postprocessor) driver + * + * Copyright (C) 2010-2011 Samsung Electronics Co., Ltd. + * Contact: Sylwester Nawrocki, <s.nawrocki@samsung.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published + * by the Free Software Foundation, either version 2 of the License, + * or (at your option) any later version. + */ + +#include <linux/module.h> +#include <linux/kernel.h> +#include <linux/types.h> +#include <linux/errno.h> +#include <linux/bug.h> +#include <linux/interrupt.h> +#include <linux/device.h> +#include <linux/platform_device.h> +#include <linux/pm_runtime.h> +#include <linux/list.h> +#include <linux/io.h> +#include <linux/slab.h> +#include <linux/clk.h> +#include <media/v4l2-ioctl.h> +#include <media/videobuf2-core.h> +#include <media/videobuf2-dma-contig.h> + +#include "fimc-core.h" +#include "fimc-mdevice.h" + +static char *fimc_clocks[MAX_FIMC_CLOCKS] = { + "sclk_fimc", "fimc" +}; + +static struct fimc_fmt fimc_formats[] = { + { + .name = "RGB565", + .fourcc = V4L2_PIX_FMT_RGB565, + .depth = { 16 }, + .color = S5P_FIMC_RGB565, + .memplanes = 1, + .colplanes = 1, + .flags = FMT_FLAGS_M2M, + }, { + .name = "BGR666", + .fourcc = V4L2_PIX_FMT_BGR666, + .depth = { 32 }, + .color = S5P_FIMC_RGB666, + .memplanes = 1, + .colplanes = 1, + .flags = FMT_FLAGS_M2M, + }, { + .name = "ARGB8888, 32 bpp", + .fourcc = V4L2_PIX_FMT_RGB32, + .depth = { 32 }, + .color = S5P_FIMC_RGB888, + .memplanes = 1, + .colplanes = 1, + .flags = FMT_FLAGS_M2M | FMT_HAS_ALPHA, + }, { + .name = "ARGB1555", + .fourcc = V4L2_PIX_FMT_RGB555, + .depth = { 16 }, + .color = S5P_FIMC_RGB555, + .memplanes = 1, + .colplanes = 1, + .flags = FMT_FLAGS_M2M_OUT | FMT_HAS_ALPHA, + }, { + .name = "ARGB4444", + .fourcc = V4L2_PIX_FMT_RGB444, + .depth = { 16 }, + .color = S5P_FIMC_RGB444, + .memplanes = 1, + .colplanes = 1, + .flags = FMT_FLAGS_M2M_OUT | FMT_HAS_ALPHA, + }, { + .name = "YUV 4:2:2 packed, YCbYCr", + .fourcc = V4L2_PIX_FMT_YUYV, + .depth = { 16 }, + .color = S5P_FIMC_YCBYCR422, + .memplanes = 1, + .colplanes = 1, + .mbus_code = V4L2_MBUS_FMT_YUYV8_2X8, + .flags = FMT_FLAGS_M2M | FMT_FLAGS_CAM, + }, { + .name = "YUV 4:2:2 packed, CbYCrY", + .fourcc = V4L2_PIX_FMT_UYVY, + .depth = { 16 }, + .color = S5P_FIMC_CBYCRY422, + .memplanes = 1, + .colplanes = 1, + .mbus_code = V4L2_MBUS_FMT_UYVY8_2X8, + .flags = FMT_FLAGS_M2M | FMT_FLAGS_CAM, + }, { + .name = "YUV 4:2:2 packed, CrYCbY", + .fourcc = V4L2_PIX_FMT_VYUY, + .depth = { 16 }, + .color = S5P_FIMC_CRYCBY422, + .memplanes = 1, + .colplanes = 1, + .mbus_code = V4L2_MBUS_FMT_VYUY8_2X8, + .flags = FMT_FLAGS_M2M | FMT_FLAGS_CAM, + }, { + .name = "YUV 4:2:2 packed, YCrYCb", + .fourcc = V4L2_PIX_FMT_YVYU, + .depth = { 16 }, + .color = S5P_FIMC_YCRYCB422, + .memplanes = 1, + .colplanes = 1, + .mbus_code = V4L2_MBUS_FMT_YVYU8_2X8, + .flags = FMT_FLAGS_M2M | FMT_FLAGS_CAM, + }, { + .name = "YUV 4:2:2 planar, Y/Cb/Cr", + .fourcc = V4L2_PIX_FMT_YUV422P, + .depth = { 12 }, + .color = S5P_FIMC_YCBYCR422, + .memplanes = 1, + .colplanes = 3, + .flags = FMT_FLAGS_M2M, + }, { + .name = "YUV 4:2:2 planar, Y/CbCr", + .fourcc = V4L2_PIX_FMT_NV16, + .depth = { 16 }, + .color = S5P_FIMC_YCBYCR422, + .memplanes = 1, + .colplanes = 2, + .flags = FMT_FLAGS_M2M, + }, { + .name = "YUV 4:2:2 planar, Y/CrCb", + .fourcc = V4L2_PIX_FMT_NV61, + .depth = { 16 }, + .color = S5P_FIMC_YCRYCB422, + .memplanes = 1, + .colplanes = 2, + .flags = FMT_FLAGS_M2M, + }, { + .name = "YUV 4:2:0 planar, YCbCr", + .fourcc = V4L2_PIX_FMT_YUV420, + .depth = { 12 }, + .color = S5P_FIMC_YCBCR420, + .memplanes = 1, + .colplanes = 3, + .flags = FMT_FLAGS_M2M, + }, { + .name = "YUV 4:2:0 planar, Y/CbCr", + .fourcc = V4L2_PIX_FMT_NV12, + .depth = { 12 }, + .color = S5P_FIMC_YCBCR420, + .memplanes = 1, + .colplanes = 2, + .flags = FMT_FLAGS_M2M, + }, { + .name = "YUV 4:2:0 non-contiguous 2-planar, Y/CbCr", + .fourcc = V4L2_PIX_FMT_NV12M, + .color = S5P_FIMC_YCBCR420, + .depth = { 8, 4 }, + .memplanes = 2, + .colplanes = 2, + .flags = FMT_FLAGS_M2M, + }, { + .name = "YUV 4:2:0 non-contiguous 3-planar, Y/Cb/Cr", + .fourcc = V4L2_PIX_FMT_YUV420M, + .color = S5P_FIMC_YCBCR420, + .depth = { 8, 2, 2 }, + .memplanes = 3, + .colplanes = 3, + .flags = FMT_FLAGS_M2M, + }, { + .name = "YUV 4:2:0 non-contiguous 2-planar, Y/CbCr, tiled", + .fourcc = V4L2_PIX_FMT_NV12MT, + .color = S5P_FIMC_YCBCR420, + .depth = { 8, 4 }, + .memplanes = 2, + .colplanes = 2, + .flags = FMT_FLAGS_M2M, + }, { + .name = "JPEG encoded data", + .fourcc = V4L2_PIX_FMT_JPEG, + .color = S5P_FIMC_JPEG, + .depth = { 8 }, + .memplanes = 1, + .colplanes = 1, + .mbus_code = V4L2_MBUS_FMT_JPEG_1X8, + .flags = FMT_FLAGS_CAM, + }, +}; + +static unsigned int get_m2m_fmt_flags(unsigned int stream_type) +{ + if (stream_type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) + return FMT_FLAGS_M2M_IN; + else + return FMT_FLAGS_M2M_OUT; +} + +int fimc_check_scaler_ratio(struct fimc_ctx *ctx, int sw, int sh, + int dw, int dh, int rotation) +{ + if (rotation == 90 || rotation == 270) + swap(dw, dh); + + if (!ctx->scaler.enabled) + return (sw == dw && sh == dh) ? 0 : -EINVAL; + + if ((sw >= SCALER_MAX_HRATIO * dw) || (sh >= SCALER_MAX_VRATIO * dh)) + return -EINVAL; + + return 0; +} + +static int fimc_get_scaler_factor(u32 src, u32 tar, u32 *ratio, u32 *shift) +{ + u32 sh = 6; + + if (src >= 64 * tar) + return -EINVAL; + + while (sh--) { + u32 tmp = 1 << sh; + if (src >= tar * tmp) { + *shift = sh, *ratio = tmp; + return 0; + } + } + *shift = 0, *ratio = 1; + return 0; +} + +int fimc_set_scaler_info(struct fimc_ctx *ctx) +{ + struct samsung_fimc_variant *variant = ctx->fimc_dev->variant; + struct device *dev = &ctx->fimc_dev->pdev->dev; + struct fimc_scaler *sc = &ctx->scaler; + struct fimc_frame *s_frame = &ctx->s_frame; + struct fimc_frame *d_frame = &ctx->d_frame; + int tx, ty, sx, sy; + int ret; + + if (ctx->rotation == 90 || ctx->rotation == 270) { + ty = d_frame->width; + tx = d_frame->height; + } else { + tx = d_frame->width; + ty = d_frame->height; + } + if (tx <= 0 || ty <= 0) { + dev_err(dev, "Invalid target size: %dx%d", tx, ty); + return -EINVAL; + } + + sx = s_frame->width; + sy = s_frame->height; + if (sx <= 0 || sy <= 0) { + dev_err(dev, "Invalid source size: %dx%d", sx, sy); + return -EINVAL; + } + sc->real_width = sx; + sc->real_height = sy; + + ret = fimc_get_scaler_factor(sx, tx, &sc->pre_hratio, &sc->hfactor); + if (ret) + return ret; + + ret = fimc_get_scaler_factor(sy, ty, &sc->pre_vratio, &sc->vfactor); + if (ret) + return ret; + + sc->pre_dst_width = sx / sc->pre_hratio; + sc->pre_dst_height = sy / sc->pre_vratio; + + if (variant->has_mainscaler_ext) { + sc->main_hratio = (sx << 14) / (tx << sc->hfactor); + sc->main_vratio = (sy << 14) / (ty << sc->vfactor); + } else { + sc->main_hratio = (sx << 8) / (tx << sc->hfactor); + sc->main_vratio = (sy << 8) / (ty << sc->vfactor); + + } + + sc->scaleup_h = (tx >= sx) ? 1 : 0; + sc->scaleup_v = (ty >= sy) ? 1 : 0; + + /* check to see if input and output size/format differ */ + if (s_frame->fmt->color == d_frame->fmt->color + && s_frame->width == d_frame->width + && s_frame->height == d_frame->height) + sc->copy_mode = 1; + else + sc->copy_mode = 0; + + return 0; +} + +static void fimc_m2m_job_finish(struct fimc_ctx *ctx, int vb_state) +{ + struct vb2_buffer *src_vb, *dst_vb; + + if (!ctx || !ctx->m2m_ctx) + return; + + src_vb = v4l2_m2m_src_buf_remove(ctx->m2m_ctx); + dst_vb = v4l2_m2m_dst_buf_remove(ctx->m2m_ctx); + + if (src_vb && dst_vb) { + v4l2_m2m_buf_done(src_vb, vb_state); + v4l2_m2m_buf_done(dst_vb, vb_state); + v4l2_m2m_job_finish(ctx->fimc_dev->m2m.m2m_dev, + ctx->m2m_ctx); + } +} + +/* Complete the transaction which has been scheduled for execution. */ +static int fimc_m2m_shutdown(struct fimc_ctx *ctx) +{ + struct fimc_dev *fimc = ctx->fimc_dev; + int ret; + + if (!fimc_m2m_pending(fimc)) + return 0; + + fimc_ctx_state_lock_set(FIMC_CTX_SHUT, ctx); + + ret = wait_event_timeout(fimc->irq_queue, + !fimc_ctx_state_is_set(FIMC_CTX_SHUT, ctx), + FIMC_SHUTDOWN_TIMEOUT); + + return ret == 0 ? -ETIMEDOUT : ret; +} + +static int start_streaming(struct vb2_queue *q, unsigned int count) +{ + struct fimc_ctx *ctx = q->drv_priv; + int ret; + + ret = pm_runtime_get_sync(&ctx->fimc_dev->pdev->dev); + return ret > 0 ? 0 : ret; +} + +static int stop_streaming(struct vb2_queue *q) +{ + struct fimc_ctx *ctx = q->drv_priv; + int ret; + + ret = fimc_m2m_shutdown(ctx); + if (ret == -ETIMEDOUT) + fimc_m2m_job_finish(ctx, VB2_BUF_STATE_ERROR); + + pm_runtime_put(&ctx->fimc_dev->pdev->dev); + return 0; +} + +void fimc_capture_irq_handler(struct fimc_dev *fimc, bool final) +{ + struct fimc_vid_cap *cap = &fimc->vid_cap; + struct fimc_vid_buffer *v_buf; + struct timeval *tv; + struct timespec ts; + + if (test_and_clear_bit(ST_CAPT_SHUT, &fimc->state)) { + wake_up(&fimc->irq_queue); + return; + } + + if (!list_empty(&cap->active_buf_q) && + test_bit(ST_CAPT_RUN, &fimc->state) && final) { + ktime_get_real_ts(&ts); + + v_buf = fimc_active_queue_pop(cap); + + tv = &v_buf->vb.v4l2_buf.timestamp; + tv->tv_sec = ts.tv_sec; + tv->tv_usec = ts.tv_nsec / NSEC_PER_USEC; + v_buf->vb.v4l2_buf.sequence = cap->frame_count++; + + vb2_buffer_done(&v_buf->vb, VB2_BUF_STATE_DONE); + } + + if (!list_empty(&cap->pending_buf_q)) { + + v_buf = fimc_pending_queue_pop(cap); + fimc_hw_set_output_addr(fimc, &v_buf->paddr, cap->buf_index); + v_buf->index = cap->buf_index; + + /* Move the buffer to the capture active queue */ + fimc_active_queue_add(cap, v_buf); + + dbg("next frame: %d, done frame: %d", + fimc_hw_get_frame_index(fimc), v_buf->index); + + if (++cap->buf_index >= FIMC_MAX_OUT_BUFS) + cap->buf_index = 0; + } + + if (cap->active_buf_cnt == 0) { + if (final) + clear_bit(ST_CAPT_RUN, &fimc->state); + + if (++cap->buf_index >= FIMC_MAX_OUT_BUFS) + cap->buf_index = 0; + } else { + set_bit(ST_CAPT_RUN, &fimc->state); + } + + fimc_capture_config_update(cap->ctx); + + dbg("frame: %d, active_buf_cnt: %d", + fimc_hw_get_frame_index(fimc), cap->active_buf_cnt); +} + +static irqreturn_t fimc_irq_handler(int irq, void *priv) +{ + struct fimc_dev *fimc = priv; + struct fimc_vid_cap *cap = &fimc->vid_cap; + struct fimc_ctx *ctx; + + fimc_hw_clear_irq(fimc); + + spin_lock(&fimc->slock); + + if (test_and_clear_bit(ST_M2M_PEND, &fimc->state)) { + if (test_and_clear_bit(ST_M2M_SUSPENDING, &fimc->state)) { + set_bit(ST_M2M_SUSPENDED, &fimc->state); + wake_up(&fimc->irq_queue); + goto out; + } + ctx = v4l2_m2m_get_curr_priv(fimc->m2m.m2m_dev); + if (ctx != NULL) { + spin_unlock(&fimc->slock); + fimc_m2m_job_finish(ctx, VB2_BUF_STATE_DONE); + + spin_lock(&ctx->slock); + if (ctx->state & FIMC_CTX_SHUT) { + ctx->state &= ~FIMC_CTX_SHUT; + wake_up(&fimc->irq_queue); + } + spin_unlock(&ctx->slock); + } + return IRQ_HANDLED; + } else if (test_bit(ST_CAPT_PEND, &fimc->state)) { + fimc_capture_irq_handler(fimc, + !test_bit(ST_CAPT_JPEG, &fimc->state)); + if (cap->active_buf_cnt == 1) { + fimc_deactivate_capture(fimc); + clear_bit(ST_CAPT_STREAM, &fimc->state); + } + } +out: + spin_unlock(&fimc->slock); + return IRQ_HANDLED; +} + +/* The color format (colplanes, memplanes) must be already configured. */ +int fimc_prepare_addr(struct fimc_ctx *ctx, struct vb2_buffer *vb, + struct fimc_frame *frame, struct fimc_addr *paddr) +{ + int ret = 0; + u32 pix_size; + + if (vb == NULL || frame == NULL) + return -EINVAL; + + pix_size = frame->width * frame->height; + + dbg("memplanes= %d, colplanes= %d, pix_size= %d", + frame->fmt->memplanes, frame->fmt->colplanes, pix_size); + + paddr->y = vb2_dma_contig_plane_dma_addr(vb, 0); + + if (frame->fmt->memplanes == 1) { + switch (frame->fmt->colplanes) { + case 1: + paddr->cb = 0; + paddr->cr = 0; + break; + case 2: + /* decompose Y into Y/Cb */ + paddr->cb = (u32)(paddr->y + pix_size); + paddr->cr = 0; + break; + case 3: + paddr->cb = (u32)(paddr->y + pix_size); + /* decompose Y into Y/Cb/Cr */ + if (S5P_FIMC_YCBCR420 == frame->fmt->color) + paddr->cr = (u32)(paddr->cb + + (pix_size >> 2)); + else /* 422 */ + paddr->cr = (u32)(paddr->cb + + (pix_size >> 1)); + break; + default: + return -EINVAL; + } + } else { + if (frame->fmt->memplanes >= 2) + paddr->cb = vb2_dma_contig_plane_dma_addr(vb, 1); + + if (frame->fmt->memplanes == 3) + paddr->cr = vb2_dma_contig_plane_dma_addr(vb, 2); + } + + dbg("PHYS_ADDR: y= 0x%X cb= 0x%X cr= 0x%X ret= %d", + paddr->y, paddr->cb, paddr->cr, ret); + + return ret; +} + +/* Set order for 1 and 2 plane YCBCR 4:2:2 formats. */ +void fimc_set_yuv_order(struct fimc_ctx *ctx) +{ + /* The one only mode supported in SoC. */ + ctx->in_order_2p = S5P_FIMC_LSB_CRCB; + ctx->out_order_2p = S5P_FIMC_LSB_CRCB; + + /* Set order for 1 plane input formats. */ + switch (ctx->s_frame.fmt->color) { + case S5P_FIMC_YCRYCB422: + ctx->in_order_1p = S5P_MSCTRL_ORDER422_CBYCRY; + break; + case S5P_FIMC_CBYCRY422: + ctx->in_order_1p = S5P_MSCTRL_ORDER422_YCRYCB; + break; + case S5P_FIMC_CRYCBY422: + ctx->in_order_1p = S5P_MSCTRL_ORDER422_YCBYCR; + break; + case S5P_FIMC_YCBYCR422: + default: + ctx->in_order_1p = S5P_MSCTRL_ORDER422_CRYCBY; + break; + } + dbg("ctx->in_order_1p= %d", ctx->in_order_1p); + + switch (ctx->d_frame.fmt->color) { + case S5P_FIMC_YCRYCB422: + ctx->out_order_1p = S5P_CIOCTRL_ORDER422_CBYCRY; + break; + case S5P_FIMC_CBYCRY422: + ctx->out_order_1p = S5P_CIOCTRL_ORDER422_YCRYCB; + break; + case S5P_FIMC_CRYCBY422: + ctx->out_order_1p = S5P_CIOCTRL_ORDER422_YCBYCR; + break; + case S5P_FIMC_YCBYCR422: + default: + ctx->out_order_1p = S5P_CIOCTRL_ORDER422_CRYCBY; + break; + } + dbg("ctx->out_order_1p= %d", ctx->out_order_1p); +} + +void fimc_prepare_dma_offset(struct fimc_ctx *ctx, struct fimc_frame *f) +{ + struct samsung_fimc_variant *variant = ctx->fimc_dev->variant; + u32 i, depth = 0; + + for (i = 0; i < f->fmt->colplanes; i++) + depth += f->fmt->depth[i]; + + f->dma_offset.y_h = f->offs_h; + if (!variant->pix_hoff) + f->dma_offset.y_h *= (depth >> 3); + + f->dma_offset.y_v = f->offs_v; + + f->dma_offset.cb_h = f->offs_h; + f->dma_offset.cb_v = f->offs_v; + + f->dma_offset.cr_h = f->offs_h; + f->dma_offset.cr_v = f->offs_v; + + if (!variant->pix_hoff) { + if (f->fmt->colplanes == 3) { + f->dma_offset.cb_h >>= 1; + f->dma_offset.cr_h >>= 1; + } + if (f->fmt->color == S5P_FIMC_YCBCR420) { + f->dma_offset.cb_v >>= 1; + f->dma_offset.cr_v >>= 1; + } + } + + dbg("in_offset: color= %d, y_h= %d, y_v= %d", + f->fmt->color, f->dma_offset.y_h, f->dma_offset.y_v); +} + +/** + * fimc_prepare_config - check dimensions, operation and color mode + * and pre-calculate offset and the scaling coefficients. + * + * @ctx: hardware context information + * @flags: flags indicating which parameters to check/update + * + * Return: 0 if dimensions are valid or non zero otherwise. + */ +int fimc_prepare_config(struct fimc_ctx *ctx, u32 flags) +{ + struct fimc_frame *s_frame, *d_frame; + struct vb2_buffer *vb = NULL; + int ret = 0; + + s_frame = &ctx->s_frame; + d_frame = &ctx->d_frame; + + if (flags & FIMC_PARAMS) { + /* Prepare the DMA offset ratios for scaler. */ + fimc_prepare_dma_offset(ctx, &ctx->s_frame); + fimc_prepare_dma_offset(ctx, &ctx->d_frame); + + if (s_frame->height > (SCALER_MAX_VRATIO * d_frame->height) || + s_frame->width > (SCALER_MAX_HRATIO * d_frame->width)) { + err("out of scaler range"); + return -EINVAL; + } + fimc_set_yuv_order(ctx); + } + + if (flags & FIMC_SRC_ADDR) { + vb = v4l2_m2m_next_src_buf(ctx->m2m_ctx); + ret = fimc_prepare_addr(ctx, vb, s_frame, &s_frame->paddr); + if (ret) + return ret; + } + + if (flags & FIMC_DST_ADDR) { + vb = v4l2_m2m_next_dst_buf(ctx->m2m_ctx); + ret = fimc_prepare_addr(ctx, vb, d_frame, &d_frame->paddr); + } + + return ret; +} + +static void fimc_dma_run(void *priv) +{ + struct fimc_ctx *ctx = priv; + struct fimc_dev *fimc; + unsigned long flags; + u32 ret; + + if (WARN(!ctx, "null hardware context\n")) + return; + + fimc = ctx->fimc_dev; + spin_lock_irqsave(&fimc->slock, flags); + set_bit(ST_M2M_PEND, &fimc->state); + + spin_lock(&ctx->slock); + ctx->state |= (FIMC_SRC_ADDR | FIMC_DST_ADDR); + ret = fimc_prepare_config(ctx, ctx->state); + if (ret) + goto dma_unlock; + + /* Reconfigure hardware if the context has changed. */ + if (fimc->m2m.ctx != ctx) { + ctx->state |= FIMC_PARAMS; + fimc->m2m.ctx = ctx; + } + fimc_hw_set_input_addr(fimc, &ctx->s_frame.paddr); + + if (ctx->state & FIMC_PARAMS) { + fimc_hw_set_input_path(ctx); + fimc_hw_set_in_dma(ctx); + ret = fimc_set_scaler_info(ctx); + if (ret) { + spin_unlock(&fimc->slock); + goto dma_unlock; + } + fimc_hw_set_prescaler(ctx); + fimc_hw_set_mainscaler(ctx); + fimc_hw_set_target_format(ctx); + fimc_hw_set_rotation(ctx); + fimc_hw_set_effect(ctx, false); + } + + fimc_hw_set_output_path(ctx); + if (ctx->state & (FIMC_DST_ADDR | FIMC_PARAMS)) + fimc_hw_set_output_addr(fimc, &ctx->d_frame.paddr, -1); + + if (ctx->state & FIMC_PARAMS) { + fimc_hw_set_out_dma(ctx); + if (fimc->variant->has_alpha) + fimc_hw_set_rgb_alpha(ctx); + } + + fimc_activate_capture(ctx); + + ctx->state &= (FIMC_CTX_M2M | FIMC_CTX_CAP | + FIMC_SRC_FMT | FIMC_DST_FMT); + fimc_hw_activate_input_dma(fimc, true); +dma_unlock: + spin_unlock(&ctx->slock); + spin_unlock_irqrestore(&fimc->slock, flags); +} + +static void fimc_job_abort(void *priv) +{ + fimc_m2m_shutdown(priv); +} + +static int fimc_queue_setup(struct vb2_queue *vq, const struct v4l2_format *fmt, + unsigned int *num_buffers, unsigned int *num_planes, + unsigned int sizes[], void *allocators[]) +{ + struct fimc_ctx *ctx = vb2_get_drv_priv(vq); + struct fimc_frame *f; + int i; + + f = ctx_get_frame(ctx, vq->type); + if (IS_ERR(f)) + return PTR_ERR(f); + /* + * Return number of non-contigous planes (plane buffers) + * depending on the configured color format. + */ + if (!f->fmt) + return -EINVAL; + + *num_planes = f->fmt->memplanes; + for (i = 0; i < f->fmt->memplanes; i++) { + sizes[i] = (f->f_width * f->f_height * f->fmt->depth[i]) / 8; + allocators[i] = ctx->fimc_dev->alloc_ctx; + } + return 0; +} + +static int fimc_buf_prepare(struct vb2_buffer *vb) +{ + struct fimc_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue); + struct fimc_frame *frame; + int i; + + frame = ctx_get_frame(ctx, vb->vb2_queue->type); + if (IS_ERR(frame)) + return PTR_ERR(frame); + + for (i = 0; i < frame->fmt->memplanes; i++) + vb2_set_plane_payload(vb, i, frame->payload[i]); + + return 0; +} + +static void fimc_buf_queue(struct vb2_buffer *vb) +{ + struct fimc_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue); + + dbg("ctx: %p, ctx->state: 0x%x", ctx, ctx->state); + + if (ctx->m2m_ctx) + v4l2_m2m_buf_queue(ctx->m2m_ctx, vb); +} + +static void fimc_lock(struct vb2_queue *vq) +{ + struct fimc_ctx *ctx = vb2_get_drv_priv(vq); + mutex_lock(&ctx->fimc_dev->lock); +} + +static void fimc_unlock(struct vb2_queue *vq) +{ + struct fimc_ctx *ctx = vb2_get_drv_priv(vq); + mutex_unlock(&ctx->fimc_dev->lock); +} + +static struct vb2_ops fimc_qops = { + .queue_setup = fimc_queue_setup, + .buf_prepare = fimc_buf_prepare, + .buf_queue = fimc_buf_queue, + .wait_prepare = fimc_unlock, + .wait_finish = fimc_lock, + .stop_streaming = stop_streaming, + .start_streaming = start_streaming, +}; + +/* + * V4L2 controls handling + */ +#define ctrl_to_ctx(__ctrl) \ + container_of((__ctrl)->handler, struct fimc_ctx, ctrl_handler) + +static int __fimc_s_ctrl(struct fimc_ctx *ctx, struct v4l2_ctrl *ctrl) +{ + struct fimc_dev *fimc = ctx->fimc_dev; + struct samsung_fimc_variant *variant = fimc->variant; + unsigned int flags = FIMC_DST_FMT | FIMC_SRC_FMT; + int ret = 0; + + if (ctrl->flags & V4L2_CTRL_FLAG_INACTIVE) + return 0; + + switch (ctrl->id) { + case V4L2_CID_HFLIP: + ctx->hflip = ctrl->val; + break; + + case V4L2_CID_VFLIP: + ctx->vflip = ctrl->val; + break; + + case V4L2_CID_ROTATE: + if (fimc_capture_pending(fimc) || + (ctx->state & flags) == flags) { + ret = fimc_check_scaler_ratio(ctx, ctx->s_frame.width, + ctx->s_frame.height, ctx->d_frame.width, + ctx->d_frame.height, ctrl->val); + if (ret) + return -EINVAL; + } + if ((ctrl->val == 90 || ctrl->val == 270) && + !variant->has_out_rot) + return -EINVAL; + + ctx->rotation = ctrl->val; + break; + + case V4L2_CID_ALPHA_COMPONENT: + ctx->d_frame.alpha = ctrl->val; + break; + } + ctx->state |= FIMC_PARAMS; + set_bit(ST_CAPT_APPLY_CFG, &fimc->state); + return 0; +} + +static int fimc_s_ctrl(struct v4l2_ctrl *ctrl) +{ + struct fimc_ctx *ctx = ctrl_to_ctx(ctrl); + unsigned long flags; + int ret; + + spin_lock_irqsave(&ctx->slock, flags); + ret = __fimc_s_ctrl(ctx, ctrl); + spin_unlock_irqrestore(&ctx->slock, flags); + + return ret; +} + +static const struct v4l2_ctrl_ops fimc_ctrl_ops = { + .s_ctrl = fimc_s_ctrl, +}; + +int fimc_ctrls_create(struct fimc_ctx *ctx) +{ + struct samsung_fimc_variant *variant = ctx->fimc_dev->variant; + unsigned int max_alpha = fimc_get_alpha_mask(ctx->d_frame.fmt); + + if (ctx->ctrls_rdy) + return 0; + v4l2_ctrl_handler_init(&ctx->ctrl_handler, 4); + + ctx->ctrl_rotate = v4l2_ctrl_new_std(&ctx->ctrl_handler, &fimc_ctrl_ops, + V4L2_CID_ROTATE, 0, 270, 90, 0); + ctx->ctrl_hflip = v4l2_ctrl_new_std(&ctx->ctrl_handler, &fimc_ctrl_ops, + V4L2_CID_HFLIP, 0, 1, 1, 0); + ctx->ctrl_vflip = v4l2_ctrl_new_std(&ctx->ctrl_handler, &fimc_ctrl_ops, + V4L2_CID_VFLIP, 0, 1, 1, 0); + if (variant->has_alpha) + ctx->ctrl_alpha = v4l2_ctrl_new_std(&ctx->ctrl_handler, + &fimc_ctrl_ops, V4L2_CID_ALPHA_COMPONENT, + 0, max_alpha, 1, 0); + else + ctx->ctrl_alpha = NULL; + + ctx->ctrls_rdy = ctx->ctrl_handler.error == 0; + + return ctx->ctrl_handler.error; +} + +void fimc_ctrls_delete(struct fimc_ctx *ctx) +{ + if (ctx->ctrls_rdy) { + v4l2_ctrl_handler_free(&ctx->ctrl_handler); + ctx->ctrls_rdy = false; + ctx->ctrl_alpha = NULL; + } +} + +void fimc_ctrls_activate(struct fimc_ctx *ctx, bool active) +{ + unsigned int has_alpha = ctx->d_frame.fmt->flags & FMT_HAS_ALPHA; + + if (!ctx->ctrls_rdy) + return; + + mutex_lock(&ctx->ctrl_handler.lock); + v4l2_ctrl_activate(ctx->ctrl_rotate, active); + v4l2_ctrl_activate(ctx->ctrl_hflip, active); + v4l2_ctrl_activate(ctx->ctrl_vflip, active); + if (ctx->ctrl_alpha) + v4l2_ctrl_activate(ctx->ctrl_alpha, active && has_alpha); + + if (active) { + ctx->rotation = ctx->ctrl_rotate->val; + ctx->hflip = ctx->ctrl_hflip->val; + ctx->vflip = ctx->ctrl_vflip->val; + } else { + ctx->rotation = 0; + ctx->hflip = 0; + ctx->vflip = 0; + } + mutex_unlock(&ctx->ctrl_handler.lock); +} + +/* Update maximum value of the alpha color control */ +void fimc_alpha_ctrl_update(struct fimc_ctx *ctx) +{ + struct fimc_dev *fimc = ctx->fimc_dev; + struct v4l2_ctrl *ctrl = ctx->ctrl_alpha; + + if (ctrl == NULL || !fimc->variant->has_alpha) + return; + + v4l2_ctrl_lock(ctrl); + ctrl->maximum = fimc_get_alpha_mask(ctx->d_frame.fmt); + + if (ctrl->cur.val > ctrl->maximum) + ctrl->cur.val = ctrl->maximum; + + v4l2_ctrl_unlock(ctrl); +} + +/* + * V4L2 ioctl handlers + */ +static int fimc_m2m_querycap(struct file *file, void *fh, + struct v4l2_capability *cap) +{ + struct fimc_ctx *ctx = fh_to_ctx(fh); + struct fimc_dev *fimc = ctx->fimc_dev; + + strncpy(cap->driver, fimc->pdev->name, sizeof(cap->driver) - 1); + strncpy(cap->card, fimc->pdev->name, sizeof(cap->card) - 1); + cap->bus_info[0] = 0; + cap->capabilities = V4L2_CAP_STREAMING | + V4L2_CAP_VIDEO_CAPTURE_MPLANE | V4L2_CAP_VIDEO_OUTPUT_MPLANE; + + return 0; +} + +static int fimc_m2m_enum_fmt_mplane(struct file *file, void *priv, + struct v4l2_fmtdesc *f) +{ + struct fimc_fmt *fmt; + + fmt = fimc_find_format(NULL, NULL, get_m2m_fmt_flags(f->type), + f->index); + if (!fmt) + return -EINVAL; + + strncpy(f->description, fmt->name, sizeof(f->description) - 1); + f->pixelformat = fmt->fourcc; + return 0; +} + +int fimc_fill_format(struct fimc_frame *frame, struct v4l2_format *f) +{ + struct v4l2_pix_format_mplane *pixm = &f->fmt.pix_mp; + int i; + + pixm->width = frame->o_width; + pixm->height = frame->o_height; + pixm->field = V4L2_FIELD_NONE; + pixm->pixelformat = frame->fmt->fourcc; + pixm->colorspace = V4L2_COLORSPACE_JPEG; + pixm->num_planes = frame->fmt->memplanes; + + for (i = 0; i < pixm->num_planes; ++i) { + int bpl = frame->f_width; + if (frame->fmt->colplanes == 1) /* packed formats */ + bpl = (bpl * frame->fmt->depth[0]) / 8; + pixm->plane_fmt[i].bytesperline = bpl; + pixm->plane_fmt[i].sizeimage = (frame->o_width * + frame->o_height * frame->fmt->depth[i]) / 8; + } + return 0; +} + +void fimc_fill_frame(struct fimc_frame *frame, struct v4l2_format *f) +{ + struct v4l2_pix_format_mplane *pixm = &f->fmt.pix_mp; + + frame->f_width = pixm->plane_fmt[0].bytesperline; + if (frame->fmt->colplanes == 1) + frame->f_width = (frame->f_width * 8) / frame->fmt->depth[0]; + frame->f_height = pixm->height; + frame->width = pixm->width; + frame->height = pixm->height; + frame->o_width = pixm->width; + frame->o_height = pixm->height; + frame->offs_h = 0; + frame->offs_v = 0; +} + +/** + * fimc_adjust_mplane_format - adjust bytesperline/sizeimage for each plane + * @fmt: fimc pixel format description (input) + * @width: requested pixel width + * @height: requested pixel height + * @pix: multi-plane format to adjust + */ +void fimc_adjust_mplane_format(struct fimc_fmt *fmt, u32 width, u32 height, + struct v4l2_pix_format_mplane *pix) +{ + u32 bytesperline = 0; + int i; + + pix->colorspace = V4L2_COLORSPACE_JPEG; + pix->field = V4L2_FIELD_NONE; + pix->num_planes = fmt->memplanes; + pix->pixelformat = fmt->fourcc; + pix->height = height; + pix->width = width; + + for (i = 0; i < pix->num_planes; ++i) { + u32 bpl = pix->plane_fmt[i].bytesperline; + u32 *sizeimage = &pix->plane_fmt[i].sizeimage; + + if (fmt->colplanes > 1 && (bpl == 0 || bpl < pix->width)) + bpl = pix->width; /* Planar */ + + if (fmt->colplanes == 1 && /* Packed */ + (bpl == 0 || ((bpl * 8) / fmt->depth[i]) < pix->width)) + bpl = (pix->width * fmt->depth[0]) / 8; + + if (i == 0) /* Same bytesperline for each plane. */ + bytesperline = bpl; + + pix->plane_fmt[i].bytesperline = bytesperline; + *sizeimage = (pix->width * pix->height * fmt->depth[i]) / 8; + } +} + +static int fimc_m2m_g_fmt_mplane(struct file *file, void *fh, + struct v4l2_format *f) +{ + struct fimc_ctx *ctx = fh_to_ctx(fh); + struct fimc_frame *frame = ctx_get_frame(ctx, f->type); + + if (IS_ERR(frame)) + return PTR_ERR(frame); + + return fimc_fill_format(frame, f); +} + +/** + * fimc_find_format - lookup fimc color format by fourcc or media bus format + * @pixelformat: fourcc to match, ignored if null + * @mbus_code: media bus code to match, ignored if null + * @mask: the color flags to match + * @index: offset in the fimc_formats array, ignored if negative + */ +struct fimc_fmt *fimc_find_format(const u32 *pixelformat, const u32 *mbus_code, + unsigned int mask, int index) +{ + struct fimc_fmt *fmt, *def_fmt = NULL; + unsigned int i; + int id = 0; + + if (index >= (int)ARRAY_SIZE(fimc_formats)) + return NULL; + + for (i = 0; i < ARRAY_SIZE(fimc_formats); ++i) { + fmt = &fimc_formats[i]; + if (!(fmt->flags & mask)) + continue; + if (pixelformat && fmt->fourcc == *pixelformat) + return fmt; + if (mbus_code && fmt->mbus_code == *mbus_code) + return fmt; + if (index == id) + def_fmt = fmt; + id++; + } + return def_fmt; +} + +static int fimc_try_fmt_mplane(struct fimc_ctx *ctx, struct v4l2_format *f) +{ + struct fimc_dev *fimc = ctx->fimc_dev; + struct samsung_fimc_variant *variant = fimc->variant; + struct v4l2_pix_format_mplane *pix = &f->fmt.pix_mp; + struct fimc_fmt *fmt; + u32 max_w, mod_x, mod_y; + + if (!IS_M2M(f->type)) + return -EINVAL; + + dbg("w: %d, h: %d", pix->width, pix->height); + + fmt = fimc_find_format(&pix->pixelformat, NULL, + get_m2m_fmt_flags(f->type), 0); + if (WARN(fmt == NULL, "Pixel format lookup failed")) + return -EINVAL; + + if (pix->field == V4L2_FIELD_ANY) + pix->field = V4L2_FIELD_NONE; + else if (pix->field != V4L2_FIELD_NONE) + return -EINVAL; + + if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) { + max_w = variant->pix_limit->scaler_dis_w; + mod_x = ffs(variant->min_inp_pixsize) - 1; + } else { + max_w = variant->pix_limit->out_rot_dis_w; + mod_x = ffs(variant->min_out_pixsize) - 1; + } + + if (tiled_fmt(fmt)) { + mod_x = 6; /* 64 x 32 pixels tile */ + mod_y = 5; + } else { + if (variant->min_vsize_align == 1) + mod_y = fimc_fmt_is_rgb(fmt->color) ? 0 : 1; + else + mod_y = ffs(variant->min_vsize_align) - 1; + } + + v4l_bound_align_image(&pix->width, 16, max_w, mod_x, + &pix->height, 8, variant->pix_limit->scaler_dis_w, mod_y, 0); + + fimc_adjust_mplane_format(fmt, pix->width, pix->height, &f->fmt.pix_mp); + return 0; +} + +static int fimc_m2m_try_fmt_mplane(struct file *file, void *fh, + struct v4l2_format *f) +{ + struct fimc_ctx *ctx = fh_to_ctx(fh); + + return fimc_try_fmt_mplane(ctx, f); +} + +static int fimc_m2m_s_fmt_mplane(struct file *file, void *fh, + struct v4l2_format *f) +{ + struct fimc_ctx *ctx = fh_to_ctx(fh); + struct fimc_dev *fimc = ctx->fimc_dev; + struct vb2_queue *vq; + struct fimc_frame *frame; + struct v4l2_pix_format_mplane *pix; + int i, ret = 0; + + ret = fimc_try_fmt_mplane(ctx, f); + if (ret) + return ret; + + vq = v4l2_m2m_get_vq(ctx->m2m_ctx, f->type); + + if (vb2_is_busy(vq)) { + v4l2_err(fimc->m2m.vfd, "queue (%d) busy\n", f->type); + return -EBUSY; + } + + if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) + frame = &ctx->s_frame; + else + frame = &ctx->d_frame; + + pix = &f->fmt.pix_mp; + frame->fmt = fimc_find_format(&pix->pixelformat, NULL, + get_m2m_fmt_flags(f->type), 0); + if (!frame->fmt) + return -EINVAL; + + /* Update RGB Alpha control state and value range */ + fimc_alpha_ctrl_update(ctx); + + for (i = 0; i < frame->fmt->colplanes; i++) { + frame->payload[i] = + (pix->width * pix->height * frame->fmt->depth[i]) / 8; + } + + fimc_fill_frame(frame, f); + + ctx->scaler.enabled = 1; + + if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) + fimc_ctx_state_lock_set(FIMC_PARAMS | FIMC_DST_FMT, ctx); + else + fimc_ctx_state_lock_set(FIMC_PARAMS | FIMC_SRC_FMT, ctx); + + dbg("f_w: %d, f_h: %d", frame->f_width, frame->f_height); + + return 0; +} + +static int fimc_m2m_reqbufs(struct file *file, void *fh, + struct v4l2_requestbuffers *reqbufs) +{ + struct fimc_ctx *ctx = fh_to_ctx(fh); + + return v4l2_m2m_reqbufs(file, ctx->m2m_ctx, reqbufs); +} + +static int fimc_m2m_querybuf(struct file *file, void *fh, + struct v4l2_buffer *buf) +{ + struct fimc_ctx *ctx = fh_to_ctx(fh); + + return v4l2_m2m_querybuf(file, ctx->m2m_ctx, buf); +} + +static int fimc_m2m_qbuf(struct file *file, void *fh, + struct v4l2_buffer *buf) +{ + struct fimc_ctx *ctx = fh_to_ctx(fh); + + return v4l2_m2m_qbuf(file, ctx->m2m_ctx, buf); +} + +static int fimc_m2m_dqbuf(struct file *file, void *fh, + struct v4l2_buffer *buf) +{ + struct fimc_ctx *ctx = fh_to_ctx(fh); + + return v4l2_m2m_dqbuf(file, ctx->m2m_ctx, buf); +} + +static int fimc_m2m_streamon(struct file *file, void *fh, + enum v4l2_buf_type type) +{ + struct fimc_ctx *ctx = fh_to_ctx(fh); + + /* The source and target color format need to be set */ + if (V4L2_TYPE_IS_OUTPUT(type)) { + if (!fimc_ctx_state_is_set(FIMC_SRC_FMT, ctx)) + return -EINVAL; + } else if (!fimc_ctx_state_is_set(FIMC_DST_FMT, ctx)) { + return -EINVAL; + } + + return v4l2_m2m_streamon(file, ctx->m2m_ctx, type); +} + +static int fimc_m2m_streamoff(struct file *file, void *fh, + enum v4l2_buf_type type) +{ + struct fimc_ctx *ctx = fh_to_ctx(fh); + + return v4l2_m2m_streamoff(file, ctx->m2m_ctx, type); +} + +static int fimc_m2m_cropcap(struct file *file, void *fh, + struct v4l2_cropcap *cr) +{ + struct fimc_ctx *ctx = fh_to_ctx(fh); + struct fimc_frame *frame; + + frame = ctx_get_frame(ctx, cr->type); + if (IS_ERR(frame)) + return PTR_ERR(frame); + + cr->bounds.left = 0; + cr->bounds.top = 0; + cr->bounds.width = frame->o_width; + cr->bounds.height = frame->o_height; + cr->defrect = cr->bounds; + + return 0; +} + +static int fimc_m2m_g_crop(struct file *file, void *fh, struct v4l2_crop *cr) +{ + struct fimc_ctx *ctx = fh_to_ctx(fh); + struct fimc_frame *frame; + + frame = ctx_get_frame(ctx, cr->type); + if (IS_ERR(frame)) + return PTR_ERR(frame); + + cr->c.left = frame->offs_h; + cr->c.top = frame->offs_v; + cr->c.width = frame->width; + cr->c.height = frame->height; + + return 0; +} + +static int fimc_m2m_try_crop(struct fimc_ctx *ctx, struct v4l2_crop *cr) +{ + struct fimc_dev *fimc = ctx->fimc_dev; + struct fimc_frame *f; + u32 min_size, halign, depth = 0; + int i; + + if (cr->c.top < 0 || cr->c.left < 0) { + v4l2_err(fimc->m2m.vfd, + "doesn't support negative values for top & left\n"); + return -EINVAL; + } + if (cr->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) + f = &ctx->d_frame; + else if (cr->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) + f = &ctx->s_frame; + else + return -EINVAL; + + min_size = (f == &ctx->s_frame) ? + fimc->variant->min_inp_pixsize : fimc->variant->min_out_pixsize; + + /* Get pixel alignment constraints. */ + if (fimc->variant->min_vsize_align == 1) + halign = fimc_fmt_is_rgb(f->fmt->color) ? 0 : 1; + else + halign = ffs(fimc->variant->min_vsize_align) - 1; + + for (i = 0; i < f->fmt->colplanes; i++) + depth += f->fmt->depth[i]; + + v4l_bound_align_image(&cr->c.width, min_size, f->o_width, + ffs(min_size) - 1, + &cr->c.height, min_size, f->o_height, + halign, 64/(ALIGN(depth, 8))); + + /* adjust left/top if cropping rectangle is out of bounds */ + if (cr->c.left + cr->c.width > f->o_width) + cr->c.left = f->o_width - cr->c.width; + if (cr->c.top + cr->c.height > f->o_height) + cr->c.top = f->o_height - cr->c.height; + + cr->c.left = round_down(cr->c.left, min_size); + cr->c.top = round_down(cr->c.top, fimc->variant->hor_offs_align); + + dbg("l:%d, t:%d, w:%d, h:%d, f_w: %d, f_h: %d", + cr->c.left, cr->c.top, cr->c.width, cr->c.height, + f->f_width, f->f_height); + + return 0; +} + +static int fimc_m2m_s_crop(struct file *file, void *fh, struct v4l2_crop *cr) +{ + struct fimc_ctx *ctx = fh_to_ctx(fh); + struct fimc_dev *fimc = ctx->fimc_dev; + struct fimc_frame *f; + int ret; + + ret = fimc_m2m_try_crop(ctx, cr); + if (ret) + return ret; + + f = (cr->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) ? + &ctx->s_frame : &ctx->d_frame; + + /* Check to see if scaling ratio is within supported range */ + if (fimc_ctx_state_is_set(FIMC_DST_FMT | FIMC_SRC_FMT, ctx)) { + if (cr->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) { + ret = fimc_check_scaler_ratio(ctx, cr->c.width, + cr->c.height, ctx->d_frame.width, + ctx->d_frame.height, ctx->rotation); + } else { + ret = fimc_check_scaler_ratio(ctx, ctx->s_frame.width, + ctx->s_frame.height, cr->c.width, + cr->c.height, ctx->rotation); + } + if (ret) { + v4l2_err(fimc->m2m.vfd, "Out of scaler range\n"); + return -EINVAL; + } + } + + f->offs_h = cr->c.left; + f->offs_v = cr->c.top; + f->width = cr->c.width; + f->height = cr->c.height; + + fimc_ctx_state_lock_set(FIMC_PARAMS, ctx); + + return 0; +} + +static const struct v4l2_ioctl_ops fimc_m2m_ioctl_ops = { + .vidioc_querycap = fimc_m2m_querycap, + + .vidioc_enum_fmt_vid_cap_mplane = fimc_m2m_enum_fmt_mplane, + .vidioc_enum_fmt_vid_out_mplane = fimc_m2m_enum_fmt_mplane, + + .vidioc_g_fmt_vid_cap_mplane = fimc_m2m_g_fmt_mplane, + .vidioc_g_fmt_vid_out_mplane = fimc_m2m_g_fmt_mplane, + + .vidioc_try_fmt_vid_cap_mplane = fimc_m2m_try_fmt_mplane, + .vidioc_try_fmt_vid_out_mplane = fimc_m2m_try_fmt_mplane, + + .vidioc_s_fmt_vid_cap_mplane = fimc_m2m_s_fmt_mplane, + .vidioc_s_fmt_vid_out_mplane = fimc_m2m_s_fmt_mplane, + + .vidioc_reqbufs = fimc_m2m_reqbufs, + .vidioc_querybuf = fimc_m2m_querybuf, + + .vidioc_qbuf = fimc_m2m_qbuf, + .vidioc_dqbuf = fimc_m2m_dqbuf, + + .vidioc_streamon = fimc_m2m_streamon, + .vidioc_streamoff = fimc_m2m_streamoff, + + .vidioc_g_crop = fimc_m2m_g_crop, + .vidioc_s_crop = fimc_m2m_s_crop, + .vidioc_cropcap = fimc_m2m_cropcap + +}; + +static int queue_init(void *priv, struct vb2_queue *src_vq, + struct vb2_queue *dst_vq) +{ + struct fimc_ctx *ctx = priv; + int ret; + + memset(src_vq, 0, sizeof(*src_vq)); + src_vq->type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE; + src_vq->io_modes = VB2_MMAP | VB2_USERPTR; + src_vq->drv_priv = ctx; + src_vq->ops = &fimc_qops; + src_vq->mem_ops = &vb2_dma_contig_memops; + src_vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer); + + ret = vb2_queue_init(src_vq); + if (ret) + return ret; + + memset(dst_vq, 0, sizeof(*dst_vq)); + dst_vq->type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE; + dst_vq->io_modes = VB2_MMAP | VB2_USERPTR; + dst_vq->drv_priv = ctx; + dst_vq->ops = &fimc_qops; + dst_vq->mem_ops = &vb2_dma_contig_memops; + dst_vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer); + + return vb2_queue_init(dst_vq); +} + +static int fimc_m2m_open(struct file *file) +{ + struct fimc_dev *fimc = video_drvdata(file); + struct fimc_ctx *ctx; + int ret; + + dbg("pid: %d, state: 0x%lx, refcnt: %d", + task_pid_nr(current), fimc->state, fimc->vid_cap.refcnt); + + /* + * Return if the corresponding video capture node + * is already opened. + */ + if (fimc->vid_cap.refcnt > 0) + return -EBUSY; + + ctx = kzalloc(sizeof *ctx, GFP_KERNEL); + if (!ctx) + return -ENOMEM; + v4l2_fh_init(&ctx->fh, fimc->m2m.vfd); + ctx->fimc_dev = fimc; + + /* Default color format */ + ctx->s_frame.fmt = &fimc_formats[0]; + ctx->d_frame.fmt = &fimc_formats[0]; + + ret = fimc_ctrls_create(ctx); + if (ret) + goto error_fh; + + /* Use separate control handler per file handle */ + ctx->fh.ctrl_handler = &ctx->ctrl_handler; + file->private_data = &ctx->fh; + v4l2_fh_add(&ctx->fh); + + /* Setup the device context for memory-to-memory mode */ + ctx->state = FIMC_CTX_M2M; + ctx->flags = 0; + ctx->in_path = FIMC_DMA; + ctx->out_path = FIMC_DMA; + spin_lock_init(&ctx->slock); + + ctx->m2m_ctx = v4l2_m2m_ctx_init(fimc->m2m.m2m_dev, ctx, queue_init); + if (IS_ERR(ctx->m2m_ctx)) { + ret = PTR_ERR(ctx->m2m_ctx); + goto error_c; + } + + if (fimc->m2m.refcnt++ == 0) + set_bit(ST_M2M_RUN, &fimc->state); + return 0; + +error_c: + fimc_ctrls_delete(ctx); +error_fh: + v4l2_fh_del(&ctx->fh); + v4l2_fh_exit(&ctx->fh); + kfree(ctx); + return ret; +} + +static int fimc_m2m_release(struct file *file) +{ + struct fimc_ctx *ctx = fh_to_ctx(file->private_data); + struct fimc_dev *fimc = ctx->fimc_dev; + + dbg("pid: %d, state: 0x%lx, refcnt= %d", + task_pid_nr(current), fimc->state, fimc->m2m.refcnt); + + v4l2_m2m_ctx_release(ctx->m2m_ctx); + fimc_ctrls_delete(ctx); + v4l2_fh_del(&ctx->fh); + v4l2_fh_exit(&ctx->fh); + + if (--fimc->m2m.refcnt <= 0) + clear_bit(ST_M2M_RUN, &fimc->state); + kfree(ctx); + return 0; +} + +static unsigned int fimc_m2m_poll(struct file *file, + struct poll_table_struct *wait) +{ + struct fimc_ctx *ctx = fh_to_ctx(file->private_data); + + return v4l2_m2m_poll(file, ctx->m2m_ctx, wait); +} + + +static int fimc_m2m_mmap(struct file *file, struct vm_area_struct *vma) +{ + struct fimc_ctx *ctx = fh_to_ctx(file->private_data); + + return v4l2_m2m_mmap(file, ctx->m2m_ctx, vma); +} + +static const struct v4l2_file_operations fimc_m2m_fops = { + .owner = THIS_MODULE, + .open = fimc_m2m_open, + .release = fimc_m2m_release, + .poll = fimc_m2m_poll, + .unlocked_ioctl = video_ioctl2, + .mmap = fimc_m2m_mmap, +}; + +static struct v4l2_m2m_ops m2m_ops = { + .device_run = fimc_dma_run, + .job_abort = fimc_job_abort, +}; + +int fimc_register_m2m_device(struct fimc_dev *fimc, + struct v4l2_device *v4l2_dev) +{ + struct video_device *vfd; + struct platform_device *pdev; + int ret = 0; + + if (!fimc) + return -ENODEV; + + pdev = fimc->pdev; + fimc->v4l2_dev = v4l2_dev; + + vfd = video_device_alloc(); + if (!vfd) { + v4l2_err(v4l2_dev, "Failed to allocate video device\n"); + return -ENOMEM; + } + + vfd->fops = &fimc_m2m_fops; + vfd->ioctl_ops = &fimc_m2m_ioctl_ops; + vfd->v4l2_dev = v4l2_dev; + vfd->minor = -1; + vfd->release = video_device_release; + vfd->lock = &fimc->lock; + + snprintf(vfd->name, sizeof(vfd->name), "%s.m2m", dev_name(&pdev->dev)); + video_set_drvdata(vfd, fimc); + + fimc->m2m.vfd = vfd; + fimc->m2m.m2m_dev = v4l2_m2m_init(&m2m_ops); + if (IS_ERR(fimc->m2m.m2m_dev)) { + v4l2_err(v4l2_dev, "failed to initialize v4l2-m2m device\n"); + ret = PTR_ERR(fimc->m2m.m2m_dev); + goto err_init; + } + + ret = media_entity_init(&vfd->entity, 0, NULL, 0); + if (!ret) + return 0; + + v4l2_m2m_release(fimc->m2m.m2m_dev); +err_init: + video_device_release(fimc->m2m.vfd); + return ret; +} + +void fimc_unregister_m2m_device(struct fimc_dev *fimc) +{ + if (!fimc) + return; + + if (fimc->m2m.m2m_dev) + v4l2_m2m_release(fimc->m2m.m2m_dev); + if (fimc->m2m.vfd) { + media_entity_cleanup(&fimc->m2m.vfd->entity); + /* Can also be called if video device wasn't registered */ + video_unregister_device(fimc->m2m.vfd); + } +} + +static void fimc_clk_put(struct fimc_dev *fimc) +{ + int i; + for (i = 0; i < fimc->num_clocks; i++) { + if (IS_ERR_OR_NULL(fimc->clock[i])) + continue; + clk_unprepare(fimc->clock[i]); + clk_put(fimc->clock[i]); + fimc->clock[i] = NULL; + } +} + +static int fimc_clk_get(struct fimc_dev *fimc) +{ + int i, ret; + + for (i = 0; i < fimc->num_clocks; i++) { + fimc->clock[i] = clk_get(&fimc->pdev->dev, fimc_clocks[i]); + if (IS_ERR(fimc->clock[i])) + goto err; + ret = clk_prepare(fimc->clock[i]); + if (ret < 0) { + clk_put(fimc->clock[i]); + fimc->clock[i] = NULL; + goto err; + } + } + return 0; +err: + fimc_clk_put(fimc); + dev_err(&fimc->pdev->dev, "failed to get clock: %s\n", + fimc_clocks[i]); + return -ENXIO; +} + +static int fimc_m2m_suspend(struct fimc_dev *fimc) +{ + unsigned long flags; + int timeout; + + spin_lock_irqsave(&fimc->slock, flags); + if (!fimc_m2m_pending(fimc)) { + spin_unlock_irqrestore(&fimc->slock, flags); + return 0; + } + clear_bit(ST_M2M_SUSPENDED, &fimc->state); + set_bit(ST_M2M_SUSPENDING, &fimc->state); + spin_unlock_irqrestore(&fimc->slock, flags); + + timeout = wait_event_timeout(fimc->irq_queue, + test_bit(ST_M2M_SUSPENDED, &fimc->state), + FIMC_SHUTDOWN_TIMEOUT); + + clear_bit(ST_M2M_SUSPENDING, &fimc->state); + return timeout == 0 ? -EAGAIN : 0; +} + +static int fimc_m2m_resume(struct fimc_dev *fimc) +{ + unsigned long flags; + + spin_lock_irqsave(&fimc->slock, flags); + /* Clear for full H/W setup in first run after resume */ + fimc->m2m.ctx = NULL; + spin_unlock_irqrestore(&fimc->slock, flags); + + if (test_and_clear_bit(ST_M2M_SUSPENDED, &fimc->state)) + fimc_m2m_job_finish(fimc->m2m.ctx, + VB2_BUF_STATE_ERROR); + return 0; +} + +static int fimc_probe(struct platform_device *pdev) +{ + struct fimc_dev *fimc; + struct resource *res; + struct samsung_fimc_driverdata *drv_data; + struct s5p_platform_fimc *pdata; + int ret = 0; + + drv_data = (struct samsung_fimc_driverdata *) + platform_get_device_id(pdev)->driver_data; + + if (pdev->id >= drv_data->num_entities) { + dev_err(&pdev->dev, "Invalid platform device id: %d\n", + pdev->id); + return -EINVAL; + } + + fimc = devm_kzalloc(&pdev->dev, sizeof(*fimc), GFP_KERNEL); + if (!fimc) + return -ENOMEM; + + fimc->id = pdev->id; + + fimc->variant = drv_data->variant[fimc->id]; + fimc->pdev = pdev; + pdata = pdev->dev.platform_data; + fimc->pdata = pdata; + + init_waitqueue_head(&fimc->irq_queue); + spin_lock_init(&fimc->slock); + mutex_init(&fimc->lock); + + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + fimc->regs = devm_request_and_ioremap(&pdev->dev, res); + if (fimc->regs == NULL) { + dev_err(&pdev->dev, "Failed to obtain io memory\n"); + return -ENOENT; + } + + res = platform_get_resource(pdev, IORESOURCE_IRQ, 0); + if (res == NULL) { + dev_err(&pdev->dev, "Failed to get IRQ resource\n"); + return -ENXIO; + } + fimc->irq = res->start; + + fimc->num_clocks = MAX_FIMC_CLOCKS; + ret = fimc_clk_get(fimc); + if (ret) + return ret; + clk_set_rate(fimc->clock[CLK_BUS], drv_data->lclk_frequency); + clk_enable(fimc->clock[CLK_BUS]); + + platform_set_drvdata(pdev, fimc); + + ret = devm_request_irq(&pdev->dev, fimc->irq, fimc_irq_handler, + 0, pdev->name, fimc); + if (ret) { + dev_err(&pdev->dev, "failed to install irq (%d)\n", ret); + goto err_clk; + } + + pm_runtime_enable(&pdev->dev); + ret = pm_runtime_get_sync(&pdev->dev); + if (ret < 0) + goto err_clk; + /* Initialize contiguous memory allocator */ + fimc->alloc_ctx = vb2_dma_contig_init_ctx(&pdev->dev); + if (IS_ERR(fimc->alloc_ctx)) { + ret = PTR_ERR(fimc->alloc_ctx); + goto err_pm; + } + + dev_dbg(&pdev->dev, "FIMC.%d registered successfully\n", fimc->id); + + pm_runtime_put(&pdev->dev); + return 0; + +err_pm: + pm_runtime_put(&pdev->dev); +err_clk: + fimc_clk_put(fimc); + return ret; +} + +static int fimc_runtime_resume(struct device *dev) +{ + struct fimc_dev *fimc = dev_get_drvdata(dev); + + dbg("fimc%d: state: 0x%lx", fimc->id, fimc->state); + + /* Enable clocks and perform basic initalization */ + clk_enable(fimc->clock[CLK_GATE]); + fimc_hw_reset(fimc); + + /* Resume the capture or mem-to-mem device */ + if (fimc_capture_busy(fimc)) + return fimc_capture_resume(fimc); + + return fimc_m2m_resume(fimc); +} + +static int fimc_runtime_suspend(struct device *dev) +{ + struct fimc_dev *fimc = dev_get_drvdata(dev); + int ret = 0; + + if (fimc_capture_busy(fimc)) + ret = fimc_capture_suspend(fimc); + else + ret = fimc_m2m_suspend(fimc); + if (!ret) + clk_disable(fimc->clock[CLK_GATE]); + + dbg("fimc%d: state: 0x%lx", fimc->id, fimc->state); + return ret; +} + +#ifdef CONFIG_PM_SLEEP +static int fimc_resume(struct device *dev) +{ + struct fimc_dev *fimc = dev_get_drvdata(dev); + unsigned long flags; + + dbg("fimc%d: state: 0x%lx", fimc->id, fimc->state); + + /* Do not resume if the device was idle before system suspend */ + spin_lock_irqsave(&fimc->slock, flags); + if (!test_and_clear_bit(ST_LPM, &fimc->state) || + (!fimc_m2m_active(fimc) && !fimc_capture_busy(fimc))) { + spin_unlock_irqrestore(&fimc->slock, flags); + return 0; + } + fimc_hw_reset(fimc); + spin_unlock_irqrestore(&fimc->slock, flags); + + if (fimc_capture_busy(fimc)) + return fimc_capture_resume(fimc); + + return fimc_m2m_resume(fimc); +} + +static int fimc_suspend(struct device *dev) +{ + struct fimc_dev *fimc = dev_get_drvdata(dev); + + dbg("fimc%d: state: 0x%lx", fimc->id, fimc->state); + + if (test_and_set_bit(ST_LPM, &fimc->state)) + return 0; + if (fimc_capture_busy(fimc)) + return fimc_capture_suspend(fimc); + + return fimc_m2m_suspend(fimc); +} +#endif /* CONFIG_PM_SLEEP */ + +static int __devexit fimc_remove(struct platform_device *pdev) +{ + struct fimc_dev *fimc = platform_get_drvdata(pdev); + + pm_runtime_disable(&pdev->dev); + pm_runtime_set_suspended(&pdev->dev); + + vb2_dma_contig_cleanup_ctx(fimc->alloc_ctx); + + clk_disable(fimc->clock[CLK_BUS]); + fimc_clk_put(fimc); + + dev_info(&pdev->dev, "driver unloaded\n"); + return 0; +} + +/* Image pixel limits, similar across several FIMC HW revisions. */ +static struct fimc_pix_limit s5p_pix_limit[4] = { + [0] = { + .scaler_en_w = 3264, + .scaler_dis_w = 8192, + .in_rot_en_h = 1920, + .in_rot_dis_w = 8192, + .out_rot_en_w = 1920, + .out_rot_dis_w = 4224, + }, + [1] = { + .scaler_en_w = 4224, + .scaler_dis_w = 8192, + .in_rot_en_h = 1920, + .in_rot_dis_w = 8192, + .out_rot_en_w = 1920, + .out_rot_dis_w = 4224, + }, + [2] = { + .scaler_en_w = 1920, + .scaler_dis_w = 8192, + .in_rot_en_h = 1280, + .in_rot_dis_w = 8192, + .out_rot_en_w = 1280, + .out_rot_dis_w = 1920, + }, + [3] = { + .scaler_en_w = 1920, + .scaler_dis_w = 8192, + .in_rot_en_h = 1366, + .in_rot_dis_w = 8192, + .out_rot_en_w = 1366, + .out_rot_dis_w = 1920, + }, +}; + +static struct samsung_fimc_variant fimc0_variant_s5p = { + .has_inp_rot = 1, + .has_out_rot = 1, + .has_cam_if = 1, + .min_inp_pixsize = 16, + .min_out_pixsize = 16, + .hor_offs_align = 8, + .min_vsize_align = 16, + .out_buf_count = 4, + .pix_limit = &s5p_pix_limit[0], +}; + +static struct samsung_fimc_variant fimc2_variant_s5p = { + .has_cam_if = 1, + .min_inp_pixsize = 16, + .min_out_pixsize = 16, + .hor_offs_align = 8, + .min_vsize_align = 16, + .out_buf_count = 4, + .pix_limit = &s5p_pix_limit[1], +}; + +static struct samsung_fimc_variant fimc0_variant_s5pv210 = { + .pix_hoff = 1, + .has_inp_rot = 1, + .has_out_rot = 1, + .has_cam_if = 1, + .min_inp_pixsize = 16, + .min_out_pixsize = 16, + .hor_offs_align = 8, + .min_vsize_align = 16, + .out_buf_count = 4, + .pix_limit = &s5p_pix_limit[1], +}; + +static struct samsung_fimc_variant fimc1_variant_s5pv210 = { + .pix_hoff = 1, + .has_inp_rot = 1, + .has_out_rot = 1, + .has_cam_if = 1, + .has_mainscaler_ext = 1, + .min_inp_pixsize = 16, + .min_out_pixsize = 16, + .hor_offs_align = 1, + .min_vsize_align = 1, + .out_buf_count = 4, + .pix_limit = &s5p_pix_limit[2], +}; + +static struct samsung_fimc_variant fimc2_variant_s5pv210 = { + .has_cam_if = 1, + .pix_hoff = 1, + .min_inp_pixsize = 16, + .min_out_pixsize = 16, + .hor_offs_align = 8, + .min_vsize_align = 16, + .out_buf_count = 4, + .pix_limit = &s5p_pix_limit[2], +}; + +static struct samsung_fimc_variant fimc0_variant_exynos4 = { + .pix_hoff = 1, + .has_inp_rot = 1, + .has_out_rot = 1, + .has_cam_if = 1, + .has_cistatus2 = 1, + .has_mainscaler_ext = 1, + .has_alpha = 1, + .min_inp_pixsize = 16, + .min_out_pixsize = 16, + .hor_offs_align = 2, + .min_vsize_align = 1, + .out_buf_count = 32, + .pix_limit = &s5p_pix_limit[1], +}; + +static struct samsung_fimc_variant fimc3_variant_exynos4 = { + .pix_hoff = 1, + .has_cam_if = 1, + .has_cistatus2 = 1, + .has_mainscaler_ext = 1, + .has_alpha = 1, + .min_inp_pixsize = 16, + .min_out_pixsize = 16, + .hor_offs_align = 2, + .min_vsize_align = 1, + .out_buf_count = 32, + .pix_limit = &s5p_pix_limit[3], +}; + +/* S5PC100 */ +static struct samsung_fimc_driverdata fimc_drvdata_s5p = { + .variant = { + [0] = &fimc0_variant_s5p, + [1] = &fimc0_variant_s5p, + [2] = &fimc2_variant_s5p, + }, + .num_entities = 3, + .lclk_frequency = 133000000UL, +}; + +/* S5PV210, S5PC110 */ +static struct samsung_fimc_driverdata fimc_drvdata_s5pv210 = { + .variant = { + [0] = &fimc0_variant_s5pv210, + [1] = &fimc1_variant_s5pv210, + [2] = &fimc2_variant_s5pv210, + }, + .num_entities = 3, + .lclk_frequency = 166000000UL, +}; + +/* S5PV310, S5PC210 */ +static struct samsung_fimc_driverdata fimc_drvdata_exynos4 = { + .variant = { + [0] = &fimc0_variant_exynos4, + [1] = &fimc0_variant_exynos4, + [2] = &fimc0_variant_exynos4, + [3] = &fimc3_variant_exynos4, + }, + .num_entities = 4, + .lclk_frequency = 166000000UL, +}; + +static struct platform_device_id fimc_driver_ids[] = { + { + .name = "s5p-fimc", + .driver_data = (unsigned long)&fimc_drvdata_s5p, + }, { + .name = "s5pv210-fimc", + .driver_data = (unsigned long)&fimc_drvdata_s5pv210, + }, { + .name = "exynos4-fimc", + .driver_data = (unsigned long)&fimc_drvdata_exynos4, + }, + {}, +}; +MODULE_DEVICE_TABLE(platform, fimc_driver_ids); + +static const struct dev_pm_ops fimc_pm_ops = { + SET_SYSTEM_SLEEP_PM_OPS(fimc_suspend, fimc_resume) + SET_RUNTIME_PM_OPS(fimc_runtime_suspend, fimc_runtime_resume, NULL) +}; + +static struct platform_driver fimc_driver = { + .probe = fimc_probe, + .remove = __devexit_p(fimc_remove), + .id_table = fimc_driver_ids, + .driver = { + .name = FIMC_MODULE_NAME, + .owner = THIS_MODULE, + .pm = &fimc_pm_ops, + } +}; + +int __init fimc_register_driver(void) +{ + return platform_driver_probe(&fimc_driver, fimc_probe); +} + +void __exit fimc_unregister_driver(void) +{ + platform_driver_unregister(&fimc_driver); +} diff --git a/drivers/media/video/s5p-fimc/fimc-core.h b/drivers/media/video/s5p-fimc/fimc-core.h new file mode 100644 index 00000000..84fd8355 --- /dev/null +++ b/drivers/media/video/s5p-fimc/fimc-core.h @@ -0,0 +1,826 @@ +/* + * Copyright (C) 2010 - 2011 Samsung Electronics Co., Ltd. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#ifndef FIMC_CORE_H_ +#define FIMC_CORE_H_ + +/*#define DEBUG*/ + +#include <linux/platform_device.h> +#include <linux/sched.h> +#include <linux/spinlock.h> +#include <linux/types.h> +#include <linux/videodev2.h> +#include <linux/io.h> + +#include <media/media-entity.h> +#include <media/videobuf2-core.h> +#include <media/v4l2-ctrls.h> +#include <media/v4l2-device.h> +#include <media/v4l2-mem2mem.h> +#include <media/v4l2-mediabus.h> +#include <media/s5p_fimc.h> + +#include "regs-fimc.h" + +#define err(fmt, args...) \ + printk(KERN_ERR "%s:%d: " fmt "\n", __func__, __LINE__, ##args) + +#define dbg(fmt, args...) \ + pr_debug("%s:%d: " fmt "\n", __func__, __LINE__, ##args) + +/* Time to wait for next frame VSYNC interrupt while stopping operation. */ +#define FIMC_SHUTDOWN_TIMEOUT ((100*HZ)/1000) +#define MAX_FIMC_CLOCKS 2 +#define FIMC_MODULE_NAME "s5p-fimc" +#define FIMC_MAX_DEVS 4 +#define FIMC_MAX_OUT_BUFS 4 +#define SCALER_MAX_HRATIO 64 +#define SCALER_MAX_VRATIO 64 +#define DMA_MIN_SIZE 8 +#define FIMC_CAMIF_MAX_HEIGHT 0x2000 + +/* indices to the clocks array */ +enum { + CLK_BUS, + CLK_GATE, +}; + +enum fimc_dev_flags { + ST_LPM, + /* m2m node */ + ST_M2M_RUN, + ST_M2M_PEND, + ST_M2M_SUSPENDING, + ST_M2M_SUSPENDED, + /* capture node */ + ST_CAPT_PEND, + ST_CAPT_RUN, + ST_CAPT_STREAM, + ST_CAPT_ISP_STREAM, + ST_CAPT_SUSPENDED, + ST_CAPT_SHUT, + ST_CAPT_BUSY, + ST_CAPT_APPLY_CFG, + ST_CAPT_JPEG, +}; + +#define fimc_m2m_active(dev) test_bit(ST_M2M_RUN, &(dev)->state) +#define fimc_m2m_pending(dev) test_bit(ST_M2M_PEND, &(dev)->state) + +#define fimc_capture_running(dev) test_bit(ST_CAPT_RUN, &(dev)->state) +#define fimc_capture_pending(dev) test_bit(ST_CAPT_PEND, &(dev)->state) +#define fimc_capture_busy(dev) test_bit(ST_CAPT_BUSY, &(dev)->state) + +enum fimc_datapath { + FIMC_CAMERA, + FIMC_DMA, + FIMC_LCDFIFO, + FIMC_WRITEBACK +}; + +enum fimc_color_fmt { + S5P_FIMC_RGB444 = 0x10, + S5P_FIMC_RGB555, + S5P_FIMC_RGB565, + S5P_FIMC_RGB666, + S5P_FIMC_RGB888, + S5P_FIMC_RGB30_LOCAL, + S5P_FIMC_YCBCR420 = 0x20, + S5P_FIMC_YCBYCR422, + S5P_FIMC_YCRYCB422, + S5P_FIMC_CBYCRY422, + S5P_FIMC_CRYCBY422, + S5P_FIMC_YCBCR444_LOCAL, + S5P_FIMC_JPEG = 0x40, +}; + +#define fimc_fmt_is_rgb(x) (!!((x) & 0x10)) +#define fimc_fmt_is_jpeg(x) (!!((x) & 0x40)) + +#define IS_M2M(__strt) ((__strt) == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE || \ + __strt == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) + +/* Cb/Cr chrominance components order for 2 plane Y/CbCr 4:2:2 formats. */ +#define S5P_FIMC_LSB_CRCB S5P_CIOCTRL_ORDER422_2P_LSB_CRCB + +/* The embedded image effect selection */ +#define S5P_FIMC_EFFECT_ORIGINAL S5P_CIIMGEFF_FIN_BYPASS +#define S5P_FIMC_EFFECT_ARBITRARY S5P_CIIMGEFF_FIN_ARBITRARY +#define S5P_FIMC_EFFECT_NEGATIVE S5P_CIIMGEFF_FIN_NEGATIVE +#define S5P_FIMC_EFFECT_ARTFREEZE S5P_CIIMGEFF_FIN_ARTFREEZE +#define S5P_FIMC_EFFECT_EMBOSSING S5P_CIIMGEFF_FIN_EMBOSSING +#define S5P_FIMC_EFFECT_SIKHOUETTE S5P_CIIMGEFF_FIN_SILHOUETTE + +/* The hardware context state. */ +#define FIMC_PARAMS (1 << 0) +#define FIMC_SRC_ADDR (1 << 1) +#define FIMC_DST_ADDR (1 << 2) +#define FIMC_SRC_FMT (1 << 3) +#define FIMC_DST_FMT (1 << 4) +#define FIMC_DST_CROP (1 << 5) +#define FIMC_CTX_M2M (1 << 16) +#define FIMC_CTX_CAP (1 << 17) +#define FIMC_CTX_SHUT (1 << 18) + +/* Image conversion flags */ +#define FIMC_IN_DMA_ACCESS_TILED (1 << 0) +#define FIMC_IN_DMA_ACCESS_LINEAR (0 << 0) +#define FIMC_OUT_DMA_ACCESS_TILED (1 << 1) +#define FIMC_OUT_DMA_ACCESS_LINEAR (0 << 1) +#define FIMC_SCAN_MODE_PROGRESSIVE (0 << 2) +#define FIMC_SCAN_MODE_INTERLACED (1 << 2) +/* + * YCbCr data dynamic range for RGB-YUV color conversion. + * Y/Cb/Cr: (0 ~ 255) */ +#define FIMC_COLOR_RANGE_WIDE (0 << 3) +/* Y (16 ~ 235), Cb/Cr (16 ~ 240) */ +#define FIMC_COLOR_RANGE_NARROW (1 << 3) + +/** + * struct fimc_fmt - the driver's internal color format data + * @mbus_code: Media Bus pixel code, -1 if not applicable + * @name: format description + * @fourcc: the fourcc code for this format, 0 if not applicable + * @color: the corresponding fimc_color_fmt + * @memplanes: number of physically non-contiguous data planes + * @colplanes: number of physically contiguous data planes + * @depth: per plane driver's private 'number of bits per pixel' + * @flags: flags indicating which operation mode format applies to + */ +struct fimc_fmt { + enum v4l2_mbus_pixelcode mbus_code; + char *name; + u32 fourcc; + u32 color; + u16 memplanes; + u16 colplanes; + u8 depth[VIDEO_MAX_PLANES]; + u16 flags; +#define FMT_FLAGS_CAM (1 << 0) +#define FMT_FLAGS_M2M_IN (1 << 1) +#define FMT_FLAGS_M2M_OUT (1 << 2) +#define FMT_FLAGS_M2M (1 << 1 | 1 << 2) +#define FMT_HAS_ALPHA (1 << 3) +}; + +/** + * struct fimc_dma_offset - pixel offset information for DMA + * @y_h: y value horizontal offset + * @y_v: y value vertical offset + * @cb_h: cb value horizontal offset + * @cb_v: cb value vertical offset + * @cr_h: cr value horizontal offset + * @cr_v: cr value vertical offset + */ +struct fimc_dma_offset { + int y_h; + int y_v; + int cb_h; + int cb_v; + int cr_h; + int cr_v; +}; + +/** + * struct fimc_effect - color effect information + * @type: effect type + * @pat_cb: cr value when type is "arbitrary" + * @pat_cr: cr value when type is "arbitrary" + */ +struct fimc_effect { + u32 type; + u8 pat_cb; + u8 pat_cr; +}; + +/** + * struct fimc_scaler - the configuration data for FIMC inetrnal scaler + * @scaleup_h: flag indicating scaling up horizontally + * @scaleup_v: flag indicating scaling up vertically + * @copy_mode: flag indicating transparent DMA transfer (no scaling + * and color format conversion) + * @enabled: flag indicating if the scaler is used + * @hfactor: horizontal shift factor + * @vfactor: vertical shift factor + * @pre_hratio: horizontal ratio of the prescaler + * @pre_vratio: vertical ratio of the prescaler + * @pre_dst_width: the prescaler's destination width + * @pre_dst_height: the prescaler's destination height + * @main_hratio: the main scaler's horizontal ratio + * @main_vratio: the main scaler's vertical ratio + * @real_width: source pixel (width - offset) + * @real_height: source pixel (height - offset) + */ +struct fimc_scaler { + unsigned int scaleup_h:1; + unsigned int scaleup_v:1; + unsigned int copy_mode:1; + unsigned int enabled:1; + u32 hfactor; + u32 vfactor; + u32 pre_hratio; + u32 pre_vratio; + u32 pre_dst_width; + u32 pre_dst_height; + u32 main_hratio; + u32 main_vratio; + u32 real_width; + u32 real_height; +}; + +/** + * struct fimc_addr - the FIMC physical address set for DMA + * @y: luminance plane physical address + * @cb: Cb plane physical address + * @cr: Cr plane physical address + */ +struct fimc_addr { + u32 y; + u32 cb; + u32 cr; +}; + +/** + * struct fimc_vid_buffer - the driver's video buffer + * @vb: v4l videobuf buffer + * @list: linked list structure for buffer queue + * @paddr: precalculated physical address set + * @index: buffer index for the output DMA engine + */ +struct fimc_vid_buffer { + struct vb2_buffer vb; + struct list_head list; + struct fimc_addr paddr; + int index; +}; + +/** + * struct fimc_frame - source/target frame properties + * @f_width: image full width (virtual screen size) + * @f_height: image full height (virtual screen size) + * @o_width: original image width as set by S_FMT + * @o_height: original image height as set by S_FMT + * @offs_h: image horizontal pixel offset + * @offs_v: image vertical pixel offset + * @width: image pixel width + * @height: image pixel weight + * @payload: image size in bytes (w x h x bpp) + * @paddr: image frame buffer physical addresses + * @dma_offset: DMA offset in bytes + * @fmt: fimc color format pointer + */ +struct fimc_frame { + u32 f_width; + u32 f_height; + u32 o_width; + u32 o_height; + u32 offs_h; + u32 offs_v; + u32 width; + u32 height; + unsigned long payload[VIDEO_MAX_PLANES]; + struct fimc_addr paddr; + struct fimc_dma_offset dma_offset; + struct fimc_fmt *fmt; + u8 alpha; +}; + +/** + * struct fimc_m2m_device - v4l2 memory-to-memory device data + * @vfd: the video device node for v4l2 m2m mode + * @m2m_dev: v4l2 memory-to-memory device data + * @ctx: hardware context data + * @refcnt: the reference counter + */ +struct fimc_m2m_device { + struct video_device *vfd; + struct v4l2_m2m_dev *m2m_dev; + struct fimc_ctx *ctx; + int refcnt; +}; + +#define FIMC_SD_PAD_SINK 0 +#define FIMC_SD_PAD_SOURCE 1 +#define FIMC_SD_PADS_NUM 2 + +/** + * struct fimc_vid_cap - camera capture device information + * @ctx: hardware context data + * @vfd: video device node for camera capture mode + * @subdev: subdev exposing the FIMC processing block + * @vd_pad: fimc video capture node pad + * @sd_pads: fimc video processing block pads + * @mf: media bus format at the FIMC camera input (and the scaler output) pad + * @pending_buf_q: the pending buffer queue head + * @active_buf_q: the queue head of buffers scheduled in hardware + * @vbq: the capture am video buffer queue + * @active_buf_cnt: number of video buffers scheduled in hardware + * @buf_index: index for managing the output DMA buffers + * @frame_count: the frame counter for statistics + * @reqbufs_count: the number of buffers requested in REQBUFS ioctl + * @input_index: input (camera sensor) index + * @refcnt: driver's private reference counter + * @input: capture input type, grp_id of the attached subdev + * @user_subdev_api: true if subdevs are not configured by the host driver + */ +struct fimc_vid_cap { + struct fimc_ctx *ctx; + struct vb2_alloc_ctx *alloc_ctx; + struct video_device *vfd; + struct v4l2_subdev *subdev; + struct media_pad vd_pad; + struct v4l2_mbus_framefmt mf; + struct media_pad sd_pads[FIMC_SD_PADS_NUM]; + struct list_head pending_buf_q; + struct list_head active_buf_q; + struct vb2_queue vbq; + int active_buf_cnt; + int buf_index; + unsigned int frame_count; + unsigned int reqbufs_count; + int input_index; + int refcnt; + u32 input; + bool user_subdev_api; +}; + +/** + * struct fimc_pix_limit - image pixel size limits in various IP configurations + * + * @scaler_en_w: max input pixel width when the scaler is enabled + * @scaler_dis_w: max input pixel width when the scaler is disabled + * @in_rot_en_h: max input width with the input rotator is on + * @in_rot_dis_w: max input width with the input rotator is off + * @out_rot_en_w: max output width with the output rotator on + * @out_rot_dis_w: max output width with the output rotator off + */ +struct fimc_pix_limit { + u16 scaler_en_w; + u16 scaler_dis_w; + u16 in_rot_en_h; + u16 in_rot_dis_w; + u16 out_rot_en_w; + u16 out_rot_dis_w; +}; + +/** + * struct samsung_fimc_variant - camera interface variant information + * + * @pix_hoff: indicate whether horizontal offset is in pixels or in bytes + * @has_inp_rot: set if has input rotator + * @has_out_rot: set if has output rotator + * @has_cistatus2: 1 if CISTATUS2 register is present in this IP revision + * @has_mainscaler_ext: 1 if extended mainscaler ratios in CIEXTEN register + * are present in this IP revision + * @has_cam_if: set if this instance has a camera input interface + * @pix_limit: pixel size constraints for the scaler + * @min_inp_pixsize: minimum input pixel size + * @min_out_pixsize: minimum output pixel size + * @hor_offs_align: horizontal pixel offset aligment + * @min_vsize_align: minimum vertical pixel size alignment + * @out_buf_count: the number of buffers in output DMA sequence + */ +struct samsung_fimc_variant { + unsigned int pix_hoff:1; + unsigned int has_inp_rot:1; + unsigned int has_out_rot:1; + unsigned int has_cistatus2:1; + unsigned int has_mainscaler_ext:1; + unsigned int has_cam_if:1; + unsigned int has_alpha:1; + struct fimc_pix_limit *pix_limit; + u16 min_inp_pixsize; + u16 min_out_pixsize; + u16 hor_offs_align; + u16 min_vsize_align; + u16 out_buf_count; +}; + +/** + * struct samsung_fimc_driverdata - per device type driver data for init time. + * + * @variant: the variant information for this driver. + * @dev_cnt: number of fimc sub-devices available in SoC + * @lclk_frequency: fimc bus clock frequency + */ +struct samsung_fimc_driverdata { + struct samsung_fimc_variant *variant[FIMC_MAX_DEVS]; + unsigned long lclk_frequency; + int num_entities; +}; + +struct fimc_pipeline { + struct media_pipeline *pipe; + struct v4l2_subdev *sensor; + struct v4l2_subdev *csis; +}; + +struct fimc_ctx; + +/** + * struct fimc_dev - abstraction for FIMC entity + * @slock: the spinlock protecting this data structure + * @lock: the mutex protecting this data structure + * @pdev: pointer to the FIMC platform device + * @pdata: pointer to the device platform data + * @variant: the IP variant information + * @id: FIMC device index (0..FIMC_MAX_DEVS) + * @num_clocks: the number of clocks managed by this device instance + * @clock: clocks required for FIMC operation + * @regs: the mapped hardware registers + * @irq: FIMC interrupt number + * @irq_queue: interrupt handler waitqueue + * @v4l2_dev: root v4l2_device + * @m2m: memory-to-memory V4L2 device information + * @vid_cap: camera capture device information + * @state: flags used to synchronize m2m and capture mode operation + * @alloc_ctx: videobuf2 memory allocator context + * @pipeline: fimc video capture pipeline data structure + */ +struct fimc_dev { + spinlock_t slock; + struct mutex lock; + struct platform_device *pdev; + struct s5p_platform_fimc *pdata; + struct samsung_fimc_variant *variant; + u16 id; + u16 num_clocks; + struct clk *clock[MAX_FIMC_CLOCKS]; + void __iomem *regs; + int irq; + wait_queue_head_t irq_queue; + struct v4l2_device *v4l2_dev; + struct fimc_m2m_device m2m; + struct fimc_vid_cap vid_cap; + unsigned long state; + struct vb2_alloc_ctx *alloc_ctx; + struct fimc_pipeline pipeline; +}; + +/** + * fimc_ctx - the device context data + * @slock: spinlock protecting this data structure + * @s_frame: source frame properties + * @d_frame: destination frame properties + * @out_order_1p: output 1-plane YCBCR order + * @out_order_2p: output 2-plane YCBCR order + * @in_order_1p input 1-plane YCBCR order + * @in_order_2p: input 2-plane YCBCR order + * @in_path: input mode (DMA or camera) + * @out_path: output mode (DMA or FIFO) + * @scaler: image scaler properties + * @effect: image effect + * @rotation: image clockwise rotation in degrees + * @hflip: indicates image horizontal flip if set + * @vflip: indicates image vertical flip if set + * @flags: additional flags for image conversion + * @state: flags to keep track of user configuration + * @fimc_dev: the FIMC device this context applies to + * @m2m_ctx: memory-to-memory device context + * @fh: v4l2 file handle + * @ctrl_handler: v4l2 controls handler + * @ctrl_rotate image rotation control + * @ctrl_hflip horizontal flip control + * @ctrl_vflip vertical flip control + * @ctrl_alpha RGB alpha control + * @ctrls_rdy: true if the control handler is initialized + */ +struct fimc_ctx { + spinlock_t slock; + struct fimc_frame s_frame; + struct fimc_frame d_frame; + u32 out_order_1p; + u32 out_order_2p; + u32 in_order_1p; + u32 in_order_2p; + enum fimc_datapath in_path; + enum fimc_datapath out_path; + struct fimc_scaler scaler; + struct fimc_effect effect; + int rotation; + unsigned int hflip:1; + unsigned int vflip:1; + u32 flags; + u32 state; + struct fimc_dev *fimc_dev; + struct v4l2_m2m_ctx *m2m_ctx; + struct v4l2_fh fh; + struct v4l2_ctrl_handler ctrl_handler; + struct v4l2_ctrl *ctrl_rotate; + struct v4l2_ctrl *ctrl_hflip; + struct v4l2_ctrl *ctrl_vflip; + struct v4l2_ctrl *ctrl_alpha; + bool ctrls_rdy; +}; + +#define fh_to_ctx(__fh) container_of(__fh, struct fimc_ctx, fh) + +static inline void set_frame_bounds(struct fimc_frame *f, u32 width, u32 height) +{ + f->o_width = width; + f->o_height = height; + f->f_width = width; + f->f_height = height; +} + +static inline void set_frame_crop(struct fimc_frame *f, + u32 left, u32 top, u32 width, u32 height) +{ + f->offs_h = left; + f->offs_v = top; + f->width = width; + f->height = height; +} + +static inline u32 fimc_get_format_depth(struct fimc_fmt *ff) +{ + u32 i, depth = 0; + + if (ff != NULL) + for (i = 0; i < ff->colplanes; i++) + depth += ff->depth[i]; + return depth; +} + +static inline bool fimc_capture_active(struct fimc_dev *fimc) +{ + unsigned long flags; + bool ret; + + spin_lock_irqsave(&fimc->slock, flags); + ret = !!(fimc->state & (1 << ST_CAPT_RUN) || + fimc->state & (1 << ST_CAPT_PEND)); + spin_unlock_irqrestore(&fimc->slock, flags); + return ret; +} + +static inline void fimc_ctx_state_lock_set(u32 state, struct fimc_ctx *ctx) +{ + unsigned long flags; + + spin_lock_irqsave(&ctx->slock, flags); + ctx->state |= state; + spin_unlock_irqrestore(&ctx->slock, flags); +} + +static inline bool fimc_ctx_state_is_set(u32 mask, struct fimc_ctx *ctx) +{ + unsigned long flags; + bool ret; + + spin_lock_irqsave(&ctx->slock, flags); + ret = (ctx->state & mask) == mask; + spin_unlock_irqrestore(&ctx->slock, flags); + return ret; +} + +static inline int tiled_fmt(struct fimc_fmt *fmt) +{ + return fmt->fourcc == V4L2_PIX_FMT_NV12MT; +} + +/* Return the alpha component bit mask */ +static inline int fimc_get_alpha_mask(struct fimc_fmt *fmt) +{ + switch (fmt->color) { + case S5P_FIMC_RGB444: return 0x0f; + case S5P_FIMC_RGB555: return 0x01; + case S5P_FIMC_RGB888: return 0xff; + default: return 0; + }; +} + +static inline void fimc_hw_clear_irq(struct fimc_dev *dev) +{ + u32 cfg = readl(dev->regs + S5P_CIGCTRL); + cfg |= S5P_CIGCTRL_IRQ_CLR; + writel(cfg, dev->regs + S5P_CIGCTRL); +} + +static inline void fimc_hw_enable_scaler(struct fimc_dev *dev, bool on) +{ + u32 cfg = readl(dev->regs + S5P_CISCCTRL); + if (on) + cfg |= S5P_CISCCTRL_SCALERSTART; + else + cfg &= ~S5P_CISCCTRL_SCALERSTART; + writel(cfg, dev->regs + S5P_CISCCTRL); +} + +static inline void fimc_hw_activate_input_dma(struct fimc_dev *dev, bool on) +{ + u32 cfg = readl(dev->regs + S5P_MSCTRL); + if (on) + cfg |= S5P_MSCTRL_ENVID; + else + cfg &= ~S5P_MSCTRL_ENVID; + writel(cfg, dev->regs + S5P_MSCTRL); +} + +static inline void fimc_hw_dis_capture(struct fimc_dev *dev) +{ + u32 cfg = readl(dev->regs + S5P_CIIMGCPT); + cfg &= ~(S5P_CIIMGCPT_IMGCPTEN | S5P_CIIMGCPT_IMGCPTEN_SC); + writel(cfg, dev->regs + S5P_CIIMGCPT); +} + +/** + * fimc_hw_set_dma_seq - configure output DMA buffer sequence + * @mask: each bit corresponds to one of 32 output buffer registers set + * 1 to include buffer in the sequence, 0 to disable + * + * This function mask output DMA ring buffers, i.e. it allows to configure + * which of the output buffer address registers will be used by the DMA + * engine. + */ +static inline void fimc_hw_set_dma_seq(struct fimc_dev *dev, u32 mask) +{ + writel(mask, dev->regs + S5P_CIFCNTSEQ); +} + +static inline struct fimc_frame *ctx_get_frame(struct fimc_ctx *ctx, + enum v4l2_buf_type type) +{ + struct fimc_frame *frame; + + if (V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE == type) { + if (fimc_ctx_state_is_set(FIMC_CTX_M2M, ctx)) + frame = &ctx->s_frame; + else + return ERR_PTR(-EINVAL); + } else if (V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE == type) { + frame = &ctx->d_frame; + } else { + v4l2_err(ctx->fimc_dev->v4l2_dev, + "Wrong buffer/video queue type (%d)\n", type); + return ERR_PTR(-EINVAL); + } + + return frame; +} + +/* Return an index to the buffer actually being written. */ +static inline u32 fimc_hw_get_frame_index(struct fimc_dev *dev) +{ + u32 reg; + + if (dev->variant->has_cistatus2) { + reg = readl(dev->regs + S5P_CISTATUS2) & 0x3F; + return reg > 0 ? --reg : reg; + } else { + reg = readl(dev->regs + S5P_CISTATUS); + return (reg & S5P_CISTATUS_FRAMECNT_MASK) >> + S5P_CISTATUS_FRAMECNT_SHIFT; + } +} + +/* -----------------------------------------------------*/ +/* fimc-reg.c */ +void fimc_hw_reset(struct fimc_dev *fimc); +void fimc_hw_set_rotation(struct fimc_ctx *ctx); +void fimc_hw_set_target_format(struct fimc_ctx *ctx); +void fimc_hw_set_out_dma(struct fimc_ctx *ctx); +void fimc_hw_en_lastirq(struct fimc_dev *fimc, int enable); +void fimc_hw_en_irq(struct fimc_dev *fimc, int enable); +void fimc_hw_set_prescaler(struct fimc_ctx *ctx); +void fimc_hw_set_mainscaler(struct fimc_ctx *ctx); +void fimc_hw_en_capture(struct fimc_ctx *ctx); +void fimc_hw_set_effect(struct fimc_ctx *ctx, bool active); +void fimc_hw_set_rgb_alpha(struct fimc_ctx *ctx); +void fimc_hw_set_in_dma(struct fimc_ctx *ctx); +void fimc_hw_set_input_path(struct fimc_ctx *ctx); +void fimc_hw_set_output_path(struct fimc_ctx *ctx); +void fimc_hw_set_input_addr(struct fimc_dev *fimc, struct fimc_addr *paddr); +void fimc_hw_set_output_addr(struct fimc_dev *fimc, struct fimc_addr *paddr, + int index); +int fimc_hw_set_camera_source(struct fimc_dev *fimc, + struct s5p_fimc_isp_info *cam); +int fimc_hw_set_camera_offset(struct fimc_dev *fimc, struct fimc_frame *f); +int fimc_hw_set_camera_polarity(struct fimc_dev *fimc, + struct s5p_fimc_isp_info *cam); +int fimc_hw_set_camera_type(struct fimc_dev *fimc, + struct s5p_fimc_isp_info *cam); + +/* -----------------------------------------------------*/ +/* fimc-core.c */ +int fimc_vidioc_enum_fmt_mplane(struct file *file, void *priv, + struct v4l2_fmtdesc *f); +int fimc_ctrls_create(struct fimc_ctx *ctx); +void fimc_ctrls_delete(struct fimc_ctx *ctx); +void fimc_ctrls_activate(struct fimc_ctx *ctx, bool active); +void fimc_alpha_ctrl_update(struct fimc_ctx *ctx); +int fimc_fill_format(struct fimc_frame *frame, struct v4l2_format *f); +void fimc_adjust_mplane_format(struct fimc_fmt *fmt, u32 width, u32 height, + struct v4l2_pix_format_mplane *pix); +struct fimc_fmt *fimc_find_format(const u32 *pixelformat, const u32 *mbus_code, + unsigned int mask, int index); + +int fimc_check_scaler_ratio(struct fimc_ctx *ctx, int sw, int sh, + int dw, int dh, int rotation); +int fimc_set_scaler_info(struct fimc_ctx *ctx); +int fimc_prepare_config(struct fimc_ctx *ctx, u32 flags); +int fimc_prepare_addr(struct fimc_ctx *ctx, struct vb2_buffer *vb, + struct fimc_frame *frame, struct fimc_addr *paddr); +void fimc_prepare_dma_offset(struct fimc_ctx *ctx, struct fimc_frame *f); +void fimc_set_yuv_order(struct fimc_ctx *ctx); +void fimc_fill_frame(struct fimc_frame *frame, struct v4l2_format *f); +void fimc_capture_irq_handler(struct fimc_dev *fimc, bool done); + +int fimc_register_m2m_device(struct fimc_dev *fimc, + struct v4l2_device *v4l2_dev); +void fimc_unregister_m2m_device(struct fimc_dev *fimc); +int fimc_register_driver(void); +void fimc_unregister_driver(void); + +/* -----------------------------------------------------*/ +/* fimc-capture.c */ +int fimc_register_capture_device(struct fimc_dev *fimc, + struct v4l2_device *v4l2_dev); +void fimc_unregister_capture_device(struct fimc_dev *fimc); +int fimc_capture_ctrls_create(struct fimc_dev *fimc); +int fimc_vid_cap_buf_queue(struct fimc_dev *fimc, + struct fimc_vid_buffer *fimc_vb); +void fimc_sensor_notify(struct v4l2_subdev *sd, unsigned int notification, + void *arg); +int fimc_capture_suspend(struct fimc_dev *fimc); +int fimc_capture_resume(struct fimc_dev *fimc); +int fimc_capture_config_update(struct fimc_ctx *ctx); + +/* Locking: the caller holds fimc->slock */ +static inline void fimc_activate_capture(struct fimc_ctx *ctx) +{ + fimc_hw_enable_scaler(ctx->fimc_dev, ctx->scaler.enabled); + fimc_hw_en_capture(ctx); +} + +static inline void fimc_deactivate_capture(struct fimc_dev *fimc) +{ + fimc_hw_en_lastirq(fimc, true); + fimc_hw_dis_capture(fimc); + fimc_hw_enable_scaler(fimc, false); + fimc_hw_en_lastirq(fimc, false); +} + +/* + * Buffer list manipulation functions. Must be called with fimc.slock held. + */ + +/** + * fimc_active_queue_add - add buffer to the capture active buffers queue + * @buf: buffer to add to the active buffers list + */ +static inline void fimc_active_queue_add(struct fimc_vid_cap *vid_cap, + struct fimc_vid_buffer *buf) +{ + list_add_tail(&buf->list, &vid_cap->active_buf_q); + vid_cap->active_buf_cnt++; +} + +/** + * fimc_active_queue_pop - pop buffer from the capture active buffers queue + * + * The caller must assure the active_buf_q list is not empty. + */ +static inline struct fimc_vid_buffer *fimc_active_queue_pop( + struct fimc_vid_cap *vid_cap) +{ + struct fimc_vid_buffer *buf; + buf = list_entry(vid_cap->active_buf_q.next, + struct fimc_vid_buffer, list); + list_del(&buf->list); + vid_cap->active_buf_cnt--; + return buf; +} + +/** + * fimc_pending_queue_add - add buffer to the capture pending buffers queue + * @buf: buffer to add to the pending buffers list + */ +static inline void fimc_pending_queue_add(struct fimc_vid_cap *vid_cap, + struct fimc_vid_buffer *buf) +{ + list_add_tail(&buf->list, &vid_cap->pending_buf_q); +} + +/** + * fimc_pending_queue_pop - pop buffer from the capture pending buffers queue + * + * The caller must assure the pending_buf_q list is not empty. + */ +static inline struct fimc_vid_buffer *fimc_pending_queue_pop( + struct fimc_vid_cap *vid_cap) +{ + struct fimc_vid_buffer *buf; + buf = list_entry(vid_cap->pending_buf_q.next, + struct fimc_vid_buffer, list); + list_del(&buf->list); + return buf; +} + +#endif /* FIMC_CORE_H_ */ diff --git a/drivers/media/video/s5p-fimc/fimc-mdevice.c b/drivers/media/video/s5p-fimc/fimc-mdevice.c new file mode 100644 index 00000000..62ed37e4 --- /dev/null +++ b/drivers/media/video/s5p-fimc/fimc-mdevice.c @@ -0,0 +1,862 @@ +/* + * S5P/EXYNOS4 SoC series camera host interface media device driver + * + * Copyright (C) 2011 Samsung Electronics Co., Ltd. + * Contact: Sylwester Nawrocki, <s.nawrocki@samsung.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published + * by the Free Software Foundation, either version 2 of the License, + * or (at your option) any later version. + */ + +#include <linux/bug.h> +#include <linux/device.h> +#include <linux/errno.h> +#include <linux/i2c.h> +#include <linux/kernel.h> +#include <linux/list.h> +#include <linux/module.h> +#include <linux/platform_device.h> +#include <linux/pm_runtime.h> +#include <linux/types.h> +#include <linux/slab.h> +#include <media/v4l2-ctrls.h> +#include <media/media-device.h> + +#include "fimc-core.h" +#include "fimc-mdevice.h" +#include "mipi-csis.h" + +static int __fimc_md_set_camclk(struct fimc_md *fmd, + struct fimc_sensor_info *s_info, + bool on); +/** + * fimc_pipeline_prepare - update pipeline information with subdevice pointers + * @fimc: fimc device terminating the pipeline + * + * Caller holds the graph mutex. + */ +void fimc_pipeline_prepare(struct fimc_dev *fimc, struct media_entity *me) +{ + struct media_entity_graph graph; + struct v4l2_subdev *sd; + + media_entity_graph_walk_start(&graph, me); + + while ((me = media_entity_graph_walk_next(&graph))) { + if (media_entity_type(me) != MEDIA_ENT_T_V4L2_SUBDEV) + continue; + sd = media_entity_to_v4l2_subdev(me); + + if (sd->grp_id == SENSOR_GROUP_ID) + fimc->pipeline.sensor = sd; + else if (sd->grp_id == CSIS_GROUP_ID) + fimc->pipeline.csis = sd; + } +} + +/** + * __subdev_set_power - change power state of a single subdev + * @sd: subdevice to change power state for + * @on: 1 to enable power or 0 to disable + * + * Return result of s_power subdev operation or -ENXIO if sd argument + * is NULL. Return 0 if the subdevice does not implement s_power. + */ +static int __subdev_set_power(struct v4l2_subdev *sd, int on) +{ + int *use_count; + int ret; + + if (sd == NULL) + return -ENXIO; + + use_count = &sd->entity.use_count; + if (on && (*use_count)++ > 0) + return 0; + else if (!on && (*use_count == 0 || --(*use_count) > 0)) + return 0; + ret = v4l2_subdev_call(sd, core, s_power, on); + + return ret != -ENOIOCTLCMD ? ret : 0; +} + +/** + * fimc_pipeline_s_power - change power state of all pipeline subdevs + * @fimc: fimc device terminating the pipeline + * @state: 1 to enable power or 0 for power down + * + * Need to be called with the graph mutex held. + */ +int fimc_pipeline_s_power(struct fimc_dev *fimc, int state) +{ + int ret = 0; + + if (fimc->pipeline.sensor == NULL) + return -ENXIO; + + if (state) { + ret = __subdev_set_power(fimc->pipeline.csis, 1); + if (ret && ret != -ENXIO) + return ret; + return __subdev_set_power(fimc->pipeline.sensor, 1); + } + + ret = __subdev_set_power(fimc->pipeline.sensor, 0); + if (ret) + return ret; + ret = __subdev_set_power(fimc->pipeline.csis, 0); + + return ret == -ENXIO ? 0 : ret; +} + +/** + * __fimc_pipeline_initialize - update the pipeline information, enable power + * of all pipeline subdevs and the sensor clock + * @me: media entity to start graph walk with + * @prep: true to acquire sensor (and csis) subdevs + * + * This function must be called with the graph mutex held. + */ +static int __fimc_pipeline_initialize(struct fimc_dev *fimc, + struct media_entity *me, bool prep) +{ + int ret; + + if (prep) + fimc_pipeline_prepare(fimc, me); + if (fimc->pipeline.sensor == NULL) + return -EINVAL; + ret = fimc_md_set_camclk(fimc->pipeline.sensor, true); + if (ret) + return ret; + return fimc_pipeline_s_power(fimc, 1); +} + +int fimc_pipeline_initialize(struct fimc_dev *fimc, struct media_entity *me, + bool prep) +{ + int ret; + + mutex_lock(&me->parent->graph_mutex); + ret = __fimc_pipeline_initialize(fimc, me, prep); + mutex_unlock(&me->parent->graph_mutex); + + return ret; +} + +/** + * __fimc_pipeline_shutdown - disable the sensor clock and pipeline power + * @fimc: fimc device terminating the pipeline + * + * Disable power of all subdevs in the pipeline and turn off the external + * sensor clock. + * Called with the graph mutex held. + */ +int __fimc_pipeline_shutdown(struct fimc_dev *fimc) +{ + int ret = 0; + + if (fimc->pipeline.sensor) { + ret = fimc_pipeline_s_power(fimc, 0); + fimc_md_set_camclk(fimc->pipeline.sensor, false); + } + return ret == -ENXIO ? 0 : ret; +} + +int fimc_pipeline_shutdown(struct fimc_dev *fimc) +{ + struct media_entity *me = &fimc->vid_cap.vfd->entity; + int ret; + + mutex_lock(&me->parent->graph_mutex); + ret = __fimc_pipeline_shutdown(fimc); + mutex_unlock(&me->parent->graph_mutex); + + return ret; +} + +/** + * fimc_pipeline_s_stream - invoke s_stream on pipeline subdevs + * @fimc: fimc device terminating the pipeline + * @on: passed as the s_stream call argument + */ +int fimc_pipeline_s_stream(struct fimc_dev *fimc, int on) +{ + struct fimc_pipeline *p = &fimc->pipeline; + int ret = 0; + + if (p->sensor == NULL) + return -ENODEV; + + if ((on && p->csis) || !on) + ret = v4l2_subdev_call(on ? p->csis : p->sensor, + video, s_stream, on); + if (ret < 0 && ret != -ENOIOCTLCMD) + return ret; + if ((!on && p->csis) || on) + ret = v4l2_subdev_call(on ? p->sensor : p->csis, + video, s_stream, on); + return ret == -ENOIOCTLCMD ? 0 : ret; +} + +/* + * Sensor subdevice helper functions + */ +static struct v4l2_subdev *fimc_md_register_sensor(struct fimc_md *fmd, + struct fimc_sensor_info *s_info) +{ + struct i2c_adapter *adapter; + struct v4l2_subdev *sd = NULL; + + if (!s_info || !fmd) + return NULL; + + adapter = i2c_get_adapter(s_info->pdata->i2c_bus_num); + if (!adapter) + return NULL; + sd = v4l2_i2c_new_subdev_board(&fmd->v4l2_dev, adapter, + s_info->pdata->board_info, NULL); + if (IS_ERR_OR_NULL(sd)) { + i2c_put_adapter(adapter); + v4l2_err(&fmd->v4l2_dev, "Failed to acquire subdev\n"); + return NULL; + } + v4l2_set_subdev_hostdata(sd, s_info); + sd->grp_id = SENSOR_GROUP_ID; + + v4l2_info(&fmd->v4l2_dev, "Registered sensor subdevice %s\n", + s_info->pdata->board_info->type); + return sd; +} + +static void fimc_md_unregister_sensor(struct v4l2_subdev *sd) +{ + struct i2c_client *client = v4l2_get_subdevdata(sd); + struct i2c_adapter *adapter; + + if (!client) + return; + v4l2_device_unregister_subdev(sd); + adapter = client->adapter; + i2c_unregister_device(client); + if (adapter) + i2c_put_adapter(adapter); +} + +static int fimc_md_register_sensor_entities(struct fimc_md *fmd) +{ + struct s5p_platform_fimc *pdata = fmd->pdev->dev.platform_data; + struct fimc_dev *fd = NULL; + int num_clients, ret, i; + + /* + * Runtime resume one of the FIMC entities to make sure + * the sclk_cam clocks are not globally disabled. + */ + for (i = 0; !fd && i < ARRAY_SIZE(fmd->fimc); i++) + if (fmd->fimc[i]) + fd = fmd->fimc[i]; + if (!fd) + return -ENXIO; + ret = pm_runtime_get_sync(&fd->pdev->dev); + if (ret < 0) + return ret; + + WARN_ON(pdata->num_clients > ARRAY_SIZE(fmd->sensor)); + num_clients = min_t(u32, pdata->num_clients, ARRAY_SIZE(fmd->sensor)); + + fmd->num_sensors = num_clients; + for (i = 0; i < num_clients; i++) { + fmd->sensor[i].pdata = &pdata->isp_info[i]; + ret = __fimc_md_set_camclk(fmd, &fmd->sensor[i], true); + if (ret) + break; + fmd->sensor[i].subdev = + fimc_md_register_sensor(fmd, &fmd->sensor[i]); + ret = __fimc_md_set_camclk(fmd, &fmd->sensor[i], false); + if (ret) + break; + } + pm_runtime_put(&fd->pdev->dev); + return ret; +} + +/* + * MIPI CSIS and FIMC platform devices registration. + */ +static int fimc_register_callback(struct device *dev, void *p) +{ + struct fimc_dev *fimc = dev_get_drvdata(dev); + struct fimc_md *fmd = p; + int ret; + + if (!fimc || !fimc->pdev) + return 0; + if (fimc->pdev->id < 0 || fimc->pdev->id >= FIMC_MAX_DEVS) + return 0; + + fmd->fimc[fimc->pdev->id] = fimc; + ret = fimc_register_m2m_device(fimc, &fmd->v4l2_dev); + if (ret) + return ret; + ret = fimc_register_capture_device(fimc, &fmd->v4l2_dev); + if (!ret) + fimc->vid_cap.user_subdev_api = fmd->user_subdev_api; + return ret; +} + +static int csis_register_callback(struct device *dev, void *p) +{ + struct v4l2_subdev *sd = dev_get_drvdata(dev); + struct platform_device *pdev; + struct fimc_md *fmd = p; + int id, ret; + + if (!sd) + return 0; + pdev = v4l2_get_subdevdata(sd); + if (!pdev || pdev->id < 0 || pdev->id >= CSIS_MAX_ENTITIES) + return 0; + v4l2_info(sd, "csis%d sd: %s\n", pdev->id, sd->name); + + id = pdev->id < 0 ? 0 : pdev->id; + fmd->csis[id].sd = sd; + sd->grp_id = CSIS_GROUP_ID; + ret = v4l2_device_register_subdev(&fmd->v4l2_dev, sd); + if (ret) + v4l2_err(&fmd->v4l2_dev, + "Failed to register CSIS subdevice: %d\n", ret); + return ret; +} + +/** + * fimc_md_register_platform_entities - register FIMC and CSIS media entities + */ +static int fimc_md_register_platform_entities(struct fimc_md *fmd) +{ + struct device_driver *driver; + int ret; + + driver = driver_find(FIMC_MODULE_NAME, &platform_bus_type); + if (!driver) + return -ENODEV; + ret = driver_for_each_device(driver, NULL, fmd, + fimc_register_callback); + if (ret) + return ret; + + driver = driver_find(CSIS_DRIVER_NAME, &platform_bus_type); + if (driver) + ret = driver_for_each_device(driver, NULL, fmd, + csis_register_callback); + return ret; +} + +static void fimc_md_unregister_entities(struct fimc_md *fmd) +{ + int i; + + for (i = 0; i < FIMC_MAX_DEVS; i++) { + if (fmd->fimc[i] == NULL) + continue; + fimc_unregister_m2m_device(fmd->fimc[i]); + fimc_unregister_capture_device(fmd->fimc[i]); + fmd->fimc[i] = NULL; + } + for (i = 0; i < CSIS_MAX_ENTITIES; i++) { + if (fmd->csis[i].sd == NULL) + continue; + v4l2_device_unregister_subdev(fmd->csis[i].sd); + fmd->csis[i].sd = NULL; + } + for (i = 0; i < fmd->num_sensors; i++) { + if (fmd->sensor[i].subdev == NULL) + continue; + fimc_md_unregister_sensor(fmd->sensor[i].subdev); + fmd->sensor[i].subdev = NULL; + } +} + +static int fimc_md_register_video_nodes(struct fimc_md *fmd) +{ + struct video_device *vdev; + int i, ret = 0; + + for (i = 0; i < FIMC_MAX_DEVS && !ret; i++) { + if (!fmd->fimc[i]) + continue; + + vdev = fmd->fimc[i]->m2m.vfd; + if (vdev) { + ret = video_register_device(vdev, VFL_TYPE_GRABBER, -1); + if (ret) + break; + v4l2_info(&fmd->v4l2_dev, "Registered %s as /dev/%s\n", + vdev->name, video_device_node_name(vdev)); + } + + vdev = fmd->fimc[i]->vid_cap.vfd; + if (vdev == NULL) + continue; + ret = video_register_device(vdev, VFL_TYPE_GRABBER, -1); + v4l2_info(&fmd->v4l2_dev, "Registered %s as /dev/%s\n", + vdev->name, video_device_node_name(vdev)); + } + + return ret; +} + +/** + * __fimc_md_create_fimc_links - create links to all FIMC entities + * @fmd: fimc media device + * @source: the source entity to create links to all fimc entities from + * @sensor: sensor subdev linked to FIMC[fimc_id] entity, may be null + * @pad: the source entity pad index + * @fimc_id: index of the fimc device for which link should be enabled + */ +static int __fimc_md_create_fimc_links(struct fimc_md *fmd, + struct media_entity *source, + struct v4l2_subdev *sensor, + int pad, int fimc_id) +{ + struct fimc_sensor_info *s_info; + struct media_entity *sink; + unsigned int flags; + int ret, i; + + for (i = 0; i < FIMC_MAX_DEVS; i++) { + if (!fmd->fimc[i]) + break; + /* + * Some FIMC variants are not fitted with camera capture + * interface. Skip creating a link from sensor for those. + */ + if (sensor->grp_id == SENSOR_GROUP_ID && + !fmd->fimc[i]->variant->has_cam_if) + continue; + + flags = (i == fimc_id) ? MEDIA_LNK_FL_ENABLED : 0; + sink = &fmd->fimc[i]->vid_cap.subdev->entity; + ret = media_entity_create_link(source, pad, sink, + FIMC_SD_PAD_SINK, flags); + if (ret) + return ret; + + /* Notify FIMC capture subdev entity */ + ret = media_entity_call(sink, link_setup, &sink->pads[0], + &source->pads[pad], flags); + if (ret) + break; + + v4l2_info(&fmd->v4l2_dev, "created link [%s] %c> [%s]", + source->name, flags ? '=' : '-', sink->name); + + if (flags == 0) + continue; + s_info = v4l2_get_subdev_hostdata(sensor); + if (!WARN_ON(s_info == NULL)) { + unsigned long irq_flags; + spin_lock_irqsave(&fmd->slock, irq_flags); + s_info->host = fmd->fimc[i]; + spin_unlock_irqrestore(&fmd->slock, irq_flags); + } + } + return 0; +} + +/** + * fimc_md_create_links - create default links between registered entities + * + * Parallel interface sensor entities are connected directly to FIMC capture + * entities. The sensors using MIPI CSIS bus are connected through immutable + * link with CSI receiver entity specified by mux_id. Any registered CSIS + * entity has a link to each registered FIMC capture entity. Enabled links + * are created by default between each subsequent registered sensor and + * subsequent FIMC capture entity. The number of default active links is + * determined by the number of available sensors or FIMC entities, + * whichever is less. + */ +static int fimc_md_create_links(struct fimc_md *fmd) +{ + struct v4l2_subdev *sensor, *csis; + struct s5p_fimc_isp_info *pdata; + struct fimc_sensor_info *s_info; + struct media_entity *source, *sink; + int i, pad, fimc_id = 0; + int ret = 0; + u32 flags; + + for (i = 0; i < fmd->num_sensors; i++) { + if (fmd->sensor[i].subdev == NULL) + continue; + + sensor = fmd->sensor[i].subdev; + s_info = v4l2_get_subdev_hostdata(sensor); + if (!s_info || !s_info->pdata) + continue; + + source = NULL; + pdata = s_info->pdata; + + switch (pdata->bus_type) { + case FIMC_MIPI_CSI2: + if (WARN(pdata->mux_id >= CSIS_MAX_ENTITIES, + "Wrong CSI channel id: %d\n", pdata->mux_id)) + return -EINVAL; + + csis = fmd->csis[pdata->mux_id].sd; + if (WARN(csis == NULL, + "MIPI-CSI interface specified " + "but s5p-csis module is not loaded!\n")) + return -EINVAL; + + ret = media_entity_create_link(&sensor->entity, 0, + &csis->entity, CSIS_PAD_SINK, + MEDIA_LNK_FL_IMMUTABLE | + MEDIA_LNK_FL_ENABLED); + if (ret) + return ret; + + v4l2_info(&fmd->v4l2_dev, "created link [%s] => [%s]", + sensor->entity.name, csis->entity.name); + + source = &csis->entity; + pad = CSIS_PAD_SOURCE; + break; + + case FIMC_ITU_601...FIMC_ITU_656: + source = &sensor->entity; + pad = 0; + break; + + default: + v4l2_err(&fmd->v4l2_dev, "Wrong bus_type: %x\n", + pdata->bus_type); + return -EINVAL; + } + if (source == NULL) + continue; + + ret = __fimc_md_create_fimc_links(fmd, source, sensor, pad, + fimc_id++); + } + /* Create immutable links between each FIMC's subdev and video node */ + flags = MEDIA_LNK_FL_IMMUTABLE | MEDIA_LNK_FL_ENABLED; + for (i = 0; i < FIMC_MAX_DEVS; i++) { + if (!fmd->fimc[i]) + continue; + source = &fmd->fimc[i]->vid_cap.subdev->entity; + sink = &fmd->fimc[i]->vid_cap.vfd->entity; + ret = media_entity_create_link(source, FIMC_SD_PAD_SOURCE, + sink, 0, flags); + if (ret) + break; + } + + return ret; +} + +/* + * The peripheral sensor clock management. + */ +static int fimc_md_get_clocks(struct fimc_md *fmd) +{ + char clk_name[32]; + struct clk *clock; + int i; + + for (i = 0; i < FIMC_MAX_CAMCLKS; i++) { + snprintf(clk_name, sizeof(clk_name), "sclk_cam%u", i); + clock = clk_get(NULL, clk_name); + if (IS_ERR_OR_NULL(clock)) { + v4l2_err(&fmd->v4l2_dev, "Failed to get clock: %s", + clk_name); + return -ENXIO; + } + fmd->camclk[i].clock = clock; + } + return 0; +} + +static void fimc_md_put_clocks(struct fimc_md *fmd) +{ + int i = FIMC_MAX_CAMCLKS; + + while (--i >= 0) { + if (IS_ERR_OR_NULL(fmd->camclk[i].clock)) + continue; + clk_put(fmd->camclk[i].clock); + fmd->camclk[i].clock = NULL; + } +} + +static int __fimc_md_set_camclk(struct fimc_md *fmd, + struct fimc_sensor_info *s_info, + bool on) +{ + struct s5p_fimc_isp_info *pdata = s_info->pdata; + struct fimc_camclk_info *camclk; + int ret = 0; + + if (WARN_ON(pdata->clk_id >= FIMC_MAX_CAMCLKS) || fmd == NULL) + return -EINVAL; + + if (s_info->clk_on == on) + return 0; + camclk = &fmd->camclk[pdata->clk_id]; + + dbg("camclk %d, f: %lu, clk: %p, on: %d", + pdata->clk_id, pdata->clk_frequency, camclk, on); + + if (on) { + if (camclk->use_count > 0 && + camclk->frequency != pdata->clk_frequency) + return -EINVAL; + + if (camclk->use_count++ == 0) { + clk_set_rate(camclk->clock, pdata->clk_frequency); + camclk->frequency = pdata->clk_frequency; + ret = clk_enable(camclk->clock); + } + s_info->clk_on = 1; + dbg("Enabled camclk %d: f: %lu", pdata->clk_id, + clk_get_rate(camclk->clock)); + + return ret; + } + + if (WARN_ON(camclk->use_count == 0)) + return 0; + + if (--camclk->use_count == 0) { + clk_disable(camclk->clock); + s_info->clk_on = 0; + dbg("Disabled camclk %d", pdata->clk_id); + } + return ret; +} + +/** + * fimc_md_set_camclk - peripheral sensor clock setup + * @sd: sensor subdev to configure sclk_cam clock for + * @on: 1 to enable or 0 to disable the clock + * + * There are 2 separate clock outputs available in the SoC for external + * image processors. These clocks are shared between all registered FIMC + * devices to which sensors can be attached, either directly or through + * the MIPI CSI receiver. The clock is allowed here to be used by + * multiple sensors concurrently if they use same frequency. + * The per sensor subdev clk_on attribute helps to synchronize accesses + * to the sclk_cam clocks from the video and media device nodes. + * This function should only be called when the graph mutex is held. + */ +int fimc_md_set_camclk(struct v4l2_subdev *sd, bool on) +{ + struct fimc_sensor_info *s_info = v4l2_get_subdev_hostdata(sd); + struct fimc_md *fmd = entity_to_fimc_mdev(&sd->entity); + + return __fimc_md_set_camclk(fmd, s_info, on); +} + +static int fimc_md_link_notify(struct media_pad *source, + struct media_pad *sink, u32 flags) +{ + struct v4l2_subdev *sd; + struct fimc_dev *fimc; + int ret = 0; + + if (media_entity_type(sink->entity) != MEDIA_ENT_T_V4L2_SUBDEV) + return 0; + + sd = media_entity_to_v4l2_subdev(sink->entity); + fimc = v4l2_get_subdevdata(sd); + + if (!(flags & MEDIA_LNK_FL_ENABLED)) { + ret = __fimc_pipeline_shutdown(fimc); + fimc->pipeline.sensor = NULL; + fimc->pipeline.csis = NULL; + + mutex_lock(&fimc->lock); + fimc_ctrls_delete(fimc->vid_cap.ctx); + mutex_unlock(&fimc->lock); + return ret; + } + /* + * Link activation. Enable power of pipeline elements only if the + * pipeline is already in use, i.e. its video node is opened. + * Recreate the controls destroyed during the link deactivation. + */ + mutex_lock(&fimc->lock); + if (fimc->vid_cap.refcnt > 0) { + ret = __fimc_pipeline_initialize(fimc, source->entity, true); + if (!ret) + ret = fimc_capture_ctrls_create(fimc); + } + mutex_unlock(&fimc->lock); + + return ret ? -EPIPE : ret; +} + +static ssize_t fimc_md_sysfs_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct platform_device *pdev = to_platform_device(dev); + struct fimc_md *fmd = platform_get_drvdata(pdev); + + if (fmd->user_subdev_api) + return strlcpy(buf, "Sub-device API (sub-dev)\n", PAGE_SIZE); + + return strlcpy(buf, "V4L2 video node only API (vid-dev)\n", PAGE_SIZE); +} + +static ssize_t fimc_md_sysfs_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + struct platform_device *pdev = to_platform_device(dev); + struct fimc_md *fmd = platform_get_drvdata(pdev); + bool subdev_api; + int i; + + if (!strcmp(buf, "vid-dev\n")) + subdev_api = false; + else if (!strcmp(buf, "sub-dev\n")) + subdev_api = true; + else + return count; + + fmd->user_subdev_api = subdev_api; + for (i = 0; i < FIMC_MAX_DEVS; i++) + if (fmd->fimc[i]) + fmd->fimc[i]->vid_cap.user_subdev_api = subdev_api; + return count; +} +/* + * This device attribute is to select video pipeline configuration method. + * There are following valid values: + * vid-dev - for V4L2 video node API only, subdevice will be configured + * by the host driver. + * sub-dev - for media controller API, subdevs must be configured in user + * space before starting streaming. + */ +static DEVICE_ATTR(subdev_conf_mode, S_IWUSR | S_IRUGO, + fimc_md_sysfs_show, fimc_md_sysfs_store); + +static int __devinit fimc_md_probe(struct platform_device *pdev) +{ + struct v4l2_device *v4l2_dev; + struct fimc_md *fmd; + int ret; + + fmd = devm_kzalloc(&pdev->dev, sizeof(*fmd), GFP_KERNEL); + if (!fmd) + return -ENOMEM; + + spin_lock_init(&fmd->slock); + fmd->pdev = pdev; + + strlcpy(fmd->media_dev.model, "SAMSUNG S5P FIMC", + sizeof(fmd->media_dev.model)); + fmd->media_dev.link_notify = fimc_md_link_notify; + fmd->media_dev.dev = &pdev->dev; + + v4l2_dev = &fmd->v4l2_dev; + v4l2_dev->mdev = &fmd->media_dev; + v4l2_dev->notify = fimc_sensor_notify; + snprintf(v4l2_dev->name, sizeof(v4l2_dev->name), "%s", + dev_name(&pdev->dev)); + + ret = v4l2_device_register(&pdev->dev, &fmd->v4l2_dev); + if (ret < 0) { + v4l2_err(v4l2_dev, "Failed to register v4l2_device: %d\n", ret); + return ret; + } + ret = media_device_register(&fmd->media_dev); + if (ret < 0) { + v4l2_err(v4l2_dev, "Failed to register media device: %d\n", ret); + goto err2; + } + ret = fimc_md_get_clocks(fmd); + if (ret) + goto err3; + + fmd->user_subdev_api = false; + ret = fimc_md_register_platform_entities(fmd); + if (ret) + goto err3; + + if (pdev->dev.platform_data) { + ret = fimc_md_register_sensor_entities(fmd); + if (ret) + goto err3; + } + ret = fimc_md_create_links(fmd); + if (ret) + goto err3; + ret = v4l2_device_register_subdev_nodes(&fmd->v4l2_dev); + if (ret) + goto err3; + ret = fimc_md_register_video_nodes(fmd); + if (ret) + goto err3; + + ret = device_create_file(&pdev->dev, &dev_attr_subdev_conf_mode); + if (!ret) { + platform_set_drvdata(pdev, fmd); + return 0; + } +err3: + media_device_unregister(&fmd->media_dev); + fimc_md_put_clocks(fmd); + fimc_md_unregister_entities(fmd); +err2: + v4l2_device_unregister(&fmd->v4l2_dev); + return ret; +} + +static int __devexit fimc_md_remove(struct platform_device *pdev) +{ + struct fimc_md *fmd = platform_get_drvdata(pdev); + + if (!fmd) + return 0; + device_remove_file(&pdev->dev, &dev_attr_subdev_conf_mode); + fimc_md_unregister_entities(fmd); + media_device_unregister(&fmd->media_dev); + fimc_md_put_clocks(fmd); + return 0; +} + +static struct platform_driver fimc_md_driver = { + .probe = fimc_md_probe, + .remove = __devexit_p(fimc_md_remove), + .driver = { + .name = "s5p-fimc-md", + .owner = THIS_MODULE, + } +}; + +int __init fimc_md_init(void) +{ + int ret; + request_module("s5p-csis"); + ret = fimc_register_driver(); + if (ret) + return ret; + return platform_driver_register(&fimc_md_driver); +} +void __exit fimc_md_exit(void) +{ + platform_driver_unregister(&fimc_md_driver); + fimc_unregister_driver(); +} + +module_init(fimc_md_init); +module_exit(fimc_md_exit); + +MODULE_AUTHOR("Sylwester Nawrocki <s.nawrocki@samsung.com>"); +MODULE_DESCRIPTION("S5P FIMC camera host interface/video postprocessor driver"); +MODULE_LICENSE("GPL"); +MODULE_VERSION("2.0.1"); diff --git a/drivers/media/video/s5p-fimc/fimc-mdevice.h b/drivers/media/video/s5p-fimc/fimc-mdevice.h new file mode 100644 index 00000000..da378082 --- /dev/null +++ b/drivers/media/video/s5p-fimc/fimc-mdevice.h @@ -0,0 +1,118 @@ +/* + * Copyright (C) 2011 Samsung Electronics Co., Ltd. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#ifndef FIMC_MDEVICE_H_ +#define FIMC_MDEVICE_H_ + +#include <linux/clk.h> +#include <linux/platform_device.h> +#include <linux/mutex.h> +#include <media/media-device.h> +#include <media/media-entity.h> +#include <media/v4l2-device.h> +#include <media/v4l2-subdev.h> + +#include "fimc-core.h" +#include "mipi-csis.h" + +/* Group IDs of sensor, MIPI CSIS and the writeback subdevs. */ +#define SENSOR_GROUP_ID (1 << 8) +#define CSIS_GROUP_ID (1 << 9) +#define WRITEBACK_GROUP_ID (1 << 10) + +#define FIMC_MAX_SENSORS 8 +#define FIMC_MAX_CAMCLKS 2 + +struct fimc_csis_info { + struct v4l2_subdev *sd; + int id; +}; + +struct fimc_camclk_info { + struct clk *clock; + int use_count; + unsigned long frequency; +}; + +/** + * struct fimc_sensor_info - image data source subdev information + * @pdata: sensor's atrributes passed as media device's platform data + * @subdev: image sensor v4l2 subdev + * @host: fimc device the sensor is currently linked to + * @clk_on: sclk_cam clock's state associated with this subdev + * + * This data structure applies to image sensor and the writeback subdevs. + */ +struct fimc_sensor_info { + struct s5p_fimc_isp_info *pdata; + struct v4l2_subdev *subdev; + struct fimc_dev *host; + bool clk_on; +}; + +/** + * struct fimc_md - fimc media device information + * @csis: MIPI CSIS subdevs data + * @sensor: array of registered sensor subdevs + * @num_sensors: actual number of registered sensors + * @camclk: external sensor clock information + * @fimc: array of registered fimc devices + * @media_dev: top level media device + * @v4l2_dev: top level v4l2_device holding up the subdevs + * @pdev: platform device this media device is hooked up into + * @user_subdev_api: true if subdevs are not configured by the host driver + * @slock: spinlock protecting @sensor array + */ +struct fimc_md { + struct fimc_csis_info csis[CSIS_MAX_ENTITIES]; + struct fimc_sensor_info sensor[FIMC_MAX_SENSORS]; + int num_sensors; + struct fimc_camclk_info camclk[FIMC_MAX_CAMCLKS]; + struct fimc_dev *fimc[FIMC_MAX_DEVS]; + struct media_device media_dev; + struct v4l2_device v4l2_dev; + struct platform_device *pdev; + bool user_subdev_api; + spinlock_t slock; +}; + +#define is_subdev_pad(pad) (pad == NULL || \ + media_entity_type(pad->entity) == MEDIA_ENT_T_V4L2_SUBDEV) + +#define me_subtype(me) \ + ((me->type) & (MEDIA_ENT_TYPE_MASK | MEDIA_ENT_SUBTYPE_MASK)) + +#define subdev_has_devnode(__sd) (__sd->flags & V4L2_SUBDEV_FL_HAS_DEVNODE) + +static inline struct fimc_md *entity_to_fimc_mdev(struct media_entity *me) +{ + return me->parent == NULL ? NULL : + container_of(me->parent, struct fimc_md, media_dev); +} + +static inline void fimc_md_graph_lock(struct fimc_dev *fimc) +{ + BUG_ON(fimc->vid_cap.vfd == NULL); + mutex_lock(&fimc->vid_cap.vfd->entity.parent->graph_mutex); +} + +static inline void fimc_md_graph_unlock(struct fimc_dev *fimc) +{ + BUG_ON(fimc->vid_cap.vfd == NULL); + mutex_unlock(&fimc->vid_cap.vfd->entity.parent->graph_mutex); +} + +int fimc_md_set_camclk(struct v4l2_subdev *sd, bool on); +void fimc_pipeline_prepare(struct fimc_dev *fimc, struct media_entity *me); +int fimc_pipeline_initialize(struct fimc_dev *fimc, struct media_entity *me, + bool resume); +int fimc_pipeline_shutdown(struct fimc_dev *fimc); +int fimc_pipeline_s_power(struct fimc_dev *fimc, int state); +int fimc_pipeline_s_stream(struct fimc_dev *fimc, int state); + +#endif diff --git a/drivers/media/video/s5p-fimc/fimc-reg.c b/drivers/media/video/s5p-fimc/fimc-reg.c new file mode 100644 index 00000000..15466d05 --- /dev/null +++ b/drivers/media/video/s5p-fimc/fimc-reg.c @@ -0,0 +1,723 @@ +/* + * Register interface file for Samsung Camera Interface (FIMC) driver + * + * Copyright (c) 2010 Samsung Electronics + * + * Sylwester Nawrocki, s.nawrocki@samsung.com + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. +*/ + +#include <linux/io.h> +#include <linux/delay.h> +#include <mach/map.h> +#include <media/s5p_fimc.h> + +#include "fimc-core.h" + + +void fimc_hw_reset(struct fimc_dev *dev) +{ + u32 cfg; + + cfg = readl(dev->regs + S5P_CISRCFMT); + cfg |= S5P_CISRCFMT_ITU601_8BIT; + writel(cfg, dev->regs + S5P_CISRCFMT); + + /* Software reset. */ + cfg = readl(dev->regs + S5P_CIGCTRL); + cfg |= (S5P_CIGCTRL_SWRST | S5P_CIGCTRL_IRQ_LEVEL); + writel(cfg, dev->regs + S5P_CIGCTRL); + udelay(10); + + cfg = readl(dev->regs + S5P_CIGCTRL); + cfg &= ~S5P_CIGCTRL_SWRST; + writel(cfg, dev->regs + S5P_CIGCTRL); + + if (dev->variant->out_buf_count > 4) + fimc_hw_set_dma_seq(dev, 0xF); +} + +static u32 fimc_hw_get_in_flip(struct fimc_ctx *ctx) +{ + u32 flip = S5P_MSCTRL_FLIP_NORMAL; + + if (ctx->hflip) + flip = S5P_MSCTRL_FLIP_X_MIRROR; + if (ctx->vflip) + flip = S5P_MSCTRL_FLIP_Y_MIRROR; + + if (ctx->rotation <= 90) + return flip; + + return (flip ^ S5P_MSCTRL_FLIP_180) & S5P_MSCTRL_FLIP_180; +} + +static u32 fimc_hw_get_target_flip(struct fimc_ctx *ctx) +{ + u32 flip = S5P_CITRGFMT_FLIP_NORMAL; + + if (ctx->hflip) + flip |= S5P_CITRGFMT_FLIP_X_MIRROR; + if (ctx->vflip) + flip |= S5P_CITRGFMT_FLIP_Y_MIRROR; + + if (ctx->rotation <= 90) + return flip; + + return (flip ^ S5P_CITRGFMT_FLIP_180) & S5P_CITRGFMT_FLIP_180; +} + +void fimc_hw_set_rotation(struct fimc_ctx *ctx) +{ + u32 cfg, flip; + struct fimc_dev *dev = ctx->fimc_dev; + + cfg = readl(dev->regs + S5P_CITRGFMT); + cfg &= ~(S5P_CITRGFMT_INROT90 | S5P_CITRGFMT_OUTROT90 | + S5P_CITRGFMT_FLIP_180); + + /* + * The input and output rotator cannot work simultaneously. + * Use the output rotator in output DMA mode or the input rotator + * in direct fifo output mode. + */ + if (ctx->rotation == 90 || ctx->rotation == 270) { + if (ctx->out_path == FIMC_LCDFIFO) + cfg |= S5P_CITRGFMT_INROT90; + else + cfg |= S5P_CITRGFMT_OUTROT90; + } + + if (ctx->out_path == FIMC_DMA) { + cfg |= fimc_hw_get_target_flip(ctx); + writel(cfg, dev->regs + S5P_CITRGFMT); + } else { + /* LCD FIFO path */ + flip = readl(dev->regs + S5P_MSCTRL); + flip &= ~S5P_MSCTRL_FLIP_MASK; + flip |= fimc_hw_get_in_flip(ctx); + writel(flip, dev->regs + S5P_MSCTRL); + } +} + +void fimc_hw_set_target_format(struct fimc_ctx *ctx) +{ + u32 cfg; + struct fimc_dev *dev = ctx->fimc_dev; + struct fimc_frame *frame = &ctx->d_frame; + + dbg("w= %d, h= %d color: %d", frame->width, + frame->height, frame->fmt->color); + + cfg = readl(dev->regs + S5P_CITRGFMT); + cfg &= ~(S5P_CITRGFMT_FMT_MASK | S5P_CITRGFMT_HSIZE_MASK | + S5P_CITRGFMT_VSIZE_MASK); + + switch (frame->fmt->color) { + case S5P_FIMC_RGB444...S5P_FIMC_RGB888: + cfg |= S5P_CITRGFMT_RGB; + break; + case S5P_FIMC_YCBCR420: + cfg |= S5P_CITRGFMT_YCBCR420; + break; + case S5P_FIMC_YCBYCR422...S5P_FIMC_CRYCBY422: + if (frame->fmt->colplanes == 1) + cfg |= S5P_CITRGFMT_YCBCR422_1P; + else + cfg |= S5P_CITRGFMT_YCBCR422; + break; + default: + break; + } + + if (ctx->rotation == 90 || ctx->rotation == 270) { + cfg |= S5P_CITRGFMT_HSIZE(frame->height); + cfg |= S5P_CITRGFMT_VSIZE(frame->width); + } else { + + cfg |= S5P_CITRGFMT_HSIZE(frame->width); + cfg |= S5P_CITRGFMT_VSIZE(frame->height); + } + + writel(cfg, dev->regs + S5P_CITRGFMT); + + cfg = readl(dev->regs + S5P_CITAREA) & ~S5P_CITAREA_MASK; + cfg |= (frame->width * frame->height); + writel(cfg, dev->regs + S5P_CITAREA); +} + +static void fimc_hw_set_out_dma_size(struct fimc_ctx *ctx) +{ + struct fimc_dev *dev = ctx->fimc_dev; + struct fimc_frame *frame = &ctx->d_frame; + u32 cfg; + + cfg = S5P_ORIG_SIZE_HOR(frame->f_width); + cfg |= S5P_ORIG_SIZE_VER(frame->f_height); + writel(cfg, dev->regs + S5P_ORGOSIZE); + + /* Select color space conversion equation (HD/SD size).*/ + cfg = readl(dev->regs + S5P_CIGCTRL); + if (frame->f_width >= 1280) /* HD */ + cfg |= S5P_CIGCTRL_CSC_ITU601_709; + else /* SD */ + cfg &= ~S5P_CIGCTRL_CSC_ITU601_709; + writel(cfg, dev->regs + S5P_CIGCTRL); + +} + +void fimc_hw_set_out_dma(struct fimc_ctx *ctx) +{ + u32 cfg; + struct fimc_dev *dev = ctx->fimc_dev; + struct fimc_frame *frame = &ctx->d_frame; + struct fimc_dma_offset *offset = &frame->dma_offset; + struct fimc_fmt *fmt = frame->fmt; + + /* Set the input dma offsets. */ + cfg = 0; + cfg |= S5P_CIO_OFFS_HOR(offset->y_h); + cfg |= S5P_CIO_OFFS_VER(offset->y_v); + writel(cfg, dev->regs + S5P_CIOYOFF); + + cfg = 0; + cfg |= S5P_CIO_OFFS_HOR(offset->cb_h); + cfg |= S5P_CIO_OFFS_VER(offset->cb_v); + writel(cfg, dev->regs + S5P_CIOCBOFF); + + cfg = 0; + cfg |= S5P_CIO_OFFS_HOR(offset->cr_h); + cfg |= S5P_CIO_OFFS_VER(offset->cr_v); + writel(cfg, dev->regs + S5P_CIOCROFF); + + fimc_hw_set_out_dma_size(ctx); + + /* Configure chroma components order. */ + cfg = readl(dev->regs + S5P_CIOCTRL); + + cfg &= ~(S5P_CIOCTRL_ORDER2P_MASK | S5P_CIOCTRL_ORDER422_MASK | + S5P_CIOCTRL_YCBCR_PLANE_MASK | S5P_CIOCTRL_RGB16FMT_MASK); + + if (fmt->colplanes == 1) + cfg |= ctx->out_order_1p; + else if (fmt->colplanes == 2) + cfg |= ctx->out_order_2p | S5P_CIOCTRL_YCBCR_2PLANE; + else if (fmt->colplanes == 3) + cfg |= S5P_CIOCTRL_YCBCR_3PLANE; + + if (fmt->color == S5P_FIMC_RGB565) + cfg |= S5P_CIOCTRL_RGB565; + else if (fmt->color == S5P_FIMC_RGB555) + cfg |= S5P_CIOCTRL_ARGB1555; + else if (fmt->color == S5P_FIMC_RGB444) + cfg |= S5P_CIOCTRL_ARGB4444; + + writel(cfg, dev->regs + S5P_CIOCTRL); +} + +static void fimc_hw_en_autoload(struct fimc_dev *dev, int enable) +{ + u32 cfg = readl(dev->regs + S5P_ORGISIZE); + if (enable) + cfg |= S5P_CIREAL_ISIZE_AUTOLOAD_EN; + else + cfg &= ~S5P_CIREAL_ISIZE_AUTOLOAD_EN; + writel(cfg, dev->regs + S5P_ORGISIZE); +} + +void fimc_hw_en_lastirq(struct fimc_dev *dev, int enable) +{ + u32 cfg = readl(dev->regs + S5P_CIOCTRL); + if (enable) + cfg |= S5P_CIOCTRL_LASTIRQ_ENABLE; + else + cfg &= ~S5P_CIOCTRL_LASTIRQ_ENABLE; + writel(cfg, dev->regs + S5P_CIOCTRL); +} + +void fimc_hw_set_prescaler(struct fimc_ctx *ctx) +{ + struct fimc_dev *dev = ctx->fimc_dev; + struct fimc_scaler *sc = &ctx->scaler; + u32 cfg, shfactor; + + shfactor = 10 - (sc->hfactor + sc->vfactor); + + cfg = S5P_CISCPRERATIO_SHFACTOR(shfactor); + cfg |= S5P_CISCPRERATIO_HOR(sc->pre_hratio); + cfg |= S5P_CISCPRERATIO_VER(sc->pre_vratio); + writel(cfg, dev->regs + S5P_CISCPRERATIO); + + cfg = S5P_CISCPREDST_WIDTH(sc->pre_dst_width); + cfg |= S5P_CISCPREDST_HEIGHT(sc->pre_dst_height); + writel(cfg, dev->regs + S5P_CISCPREDST); +} + +static void fimc_hw_set_scaler(struct fimc_ctx *ctx) +{ + struct fimc_dev *dev = ctx->fimc_dev; + struct fimc_scaler *sc = &ctx->scaler; + struct fimc_frame *src_frame = &ctx->s_frame; + struct fimc_frame *dst_frame = &ctx->d_frame; + + u32 cfg = readl(dev->regs + S5P_CISCCTRL); + + cfg &= ~(S5P_CISCCTRL_CSCR2Y_WIDE | S5P_CISCCTRL_CSCY2R_WIDE | + S5P_CISCCTRL_SCALEUP_H | S5P_CISCCTRL_SCALEUP_V | + S5P_CISCCTRL_SCALERBYPASS | S5P_CISCCTRL_ONE2ONE | + S5P_CISCCTRL_INRGB_FMT_MASK | S5P_CISCCTRL_OUTRGB_FMT_MASK | + S5P_CISCCTRL_INTERLACE | S5P_CISCCTRL_RGB_EXT); + + if (!(ctx->flags & FIMC_COLOR_RANGE_NARROW)) + cfg |= (S5P_CISCCTRL_CSCR2Y_WIDE | S5P_CISCCTRL_CSCY2R_WIDE); + + if (!sc->enabled) + cfg |= S5P_CISCCTRL_SCALERBYPASS; + + if (sc->scaleup_h) + cfg |= S5P_CISCCTRL_SCALEUP_H; + + if (sc->scaleup_v) + cfg |= S5P_CISCCTRL_SCALEUP_V; + + if (sc->copy_mode) + cfg |= S5P_CISCCTRL_ONE2ONE; + + if (ctx->in_path == FIMC_DMA) { + switch (src_frame->fmt->color) { + case S5P_FIMC_RGB565: + cfg |= S5P_CISCCTRL_INRGB_FMT_RGB565; + break; + case S5P_FIMC_RGB666: + cfg |= S5P_CISCCTRL_INRGB_FMT_RGB666; + break; + case S5P_FIMC_RGB888: + cfg |= S5P_CISCCTRL_INRGB_FMT_RGB888; + break; + } + } + + if (ctx->out_path == FIMC_DMA) { + u32 color = dst_frame->fmt->color; + + if (color >= S5P_FIMC_RGB444 && color <= S5P_FIMC_RGB565) + cfg |= S5P_CISCCTRL_OUTRGB_FMT_RGB565; + else if (color == S5P_FIMC_RGB666) + cfg |= S5P_CISCCTRL_OUTRGB_FMT_RGB666; + else if (color == S5P_FIMC_RGB888) + cfg |= S5P_CISCCTRL_OUTRGB_FMT_RGB888; + } else { + cfg |= S5P_CISCCTRL_OUTRGB_FMT_RGB888; + + if (ctx->flags & FIMC_SCAN_MODE_INTERLACED) + cfg |= S5P_CISCCTRL_INTERLACE; + } + + writel(cfg, dev->regs + S5P_CISCCTRL); +} + +void fimc_hw_set_mainscaler(struct fimc_ctx *ctx) +{ + struct fimc_dev *dev = ctx->fimc_dev; + struct samsung_fimc_variant *variant = dev->variant; + struct fimc_scaler *sc = &ctx->scaler; + u32 cfg; + + dbg("main_hratio= 0x%X main_vratio= 0x%X", + sc->main_hratio, sc->main_vratio); + + fimc_hw_set_scaler(ctx); + + cfg = readl(dev->regs + S5P_CISCCTRL); + cfg &= ~(S5P_CISCCTRL_MHRATIO_MASK | S5P_CISCCTRL_MVRATIO_MASK); + + if (variant->has_mainscaler_ext) { + cfg |= S5P_CISCCTRL_MHRATIO_EXT(sc->main_hratio); + cfg |= S5P_CISCCTRL_MVRATIO_EXT(sc->main_vratio); + writel(cfg, dev->regs + S5P_CISCCTRL); + + cfg = readl(dev->regs + S5P_CIEXTEN); + + cfg &= ~(S5P_CIEXTEN_MVRATIO_EXT_MASK | + S5P_CIEXTEN_MHRATIO_EXT_MASK); + cfg |= S5P_CIEXTEN_MHRATIO_EXT(sc->main_hratio); + cfg |= S5P_CIEXTEN_MVRATIO_EXT(sc->main_vratio); + writel(cfg, dev->regs + S5P_CIEXTEN); + } else { + cfg |= S5P_CISCCTRL_MHRATIO(sc->main_hratio); + cfg |= S5P_CISCCTRL_MVRATIO(sc->main_vratio); + writel(cfg, dev->regs + S5P_CISCCTRL); + } +} + +void fimc_hw_en_capture(struct fimc_ctx *ctx) +{ + struct fimc_dev *dev = ctx->fimc_dev; + + u32 cfg = readl(dev->regs + S5P_CIIMGCPT); + + if (ctx->out_path == FIMC_DMA) { + /* one shot mode */ + cfg |= S5P_CIIMGCPT_CPT_FREN_ENABLE | S5P_CIIMGCPT_IMGCPTEN; + } else { + /* Continuous frame capture mode (freerun). */ + cfg &= ~(S5P_CIIMGCPT_CPT_FREN_ENABLE | + S5P_CIIMGCPT_CPT_FRMOD_CNT); + cfg |= S5P_CIIMGCPT_IMGCPTEN; + } + + if (ctx->scaler.enabled) + cfg |= S5P_CIIMGCPT_IMGCPTEN_SC; + + writel(cfg | S5P_CIIMGCPT_IMGCPTEN, dev->regs + S5P_CIIMGCPT); +} + +void fimc_hw_set_effect(struct fimc_ctx *ctx, bool active) +{ + struct fimc_dev *dev = ctx->fimc_dev; + struct fimc_effect *effect = &ctx->effect; + u32 cfg = 0; + + if (active) { + cfg |= S5P_CIIMGEFF_IE_SC_AFTER | S5P_CIIMGEFF_IE_ENABLE; + cfg |= effect->type; + if (effect->type == S5P_FIMC_EFFECT_ARBITRARY) { + cfg |= S5P_CIIMGEFF_PAT_CB(effect->pat_cb); + cfg |= S5P_CIIMGEFF_PAT_CR(effect->pat_cr); + } + } + + writel(cfg, dev->regs + S5P_CIIMGEFF); +} + +void fimc_hw_set_rgb_alpha(struct fimc_ctx *ctx) +{ + struct fimc_dev *dev = ctx->fimc_dev; + struct fimc_frame *frame = &ctx->d_frame; + u32 cfg; + + if (!(frame->fmt->flags & FMT_HAS_ALPHA)) + return; + + cfg = readl(dev->regs + S5P_CIOCTRL); + cfg &= ~S5P_CIOCTRL_ALPHA_OUT_MASK; + cfg |= (frame->alpha << 4); + writel(cfg, dev->regs + S5P_CIOCTRL); +} + +static void fimc_hw_set_in_dma_size(struct fimc_ctx *ctx) +{ + struct fimc_dev *dev = ctx->fimc_dev; + struct fimc_frame *frame = &ctx->s_frame; + u32 cfg_o = 0; + u32 cfg_r = 0; + + if (FIMC_LCDFIFO == ctx->out_path) + cfg_r |= S5P_CIREAL_ISIZE_AUTOLOAD_EN; + + cfg_o |= S5P_ORIG_SIZE_HOR(frame->f_width); + cfg_o |= S5P_ORIG_SIZE_VER(frame->f_height); + cfg_r |= S5P_CIREAL_ISIZE_WIDTH(frame->width); + cfg_r |= S5P_CIREAL_ISIZE_HEIGHT(frame->height); + + writel(cfg_o, dev->regs + S5P_ORGISIZE); + writel(cfg_r, dev->regs + S5P_CIREAL_ISIZE); +} + +void fimc_hw_set_in_dma(struct fimc_ctx *ctx) +{ + struct fimc_dev *dev = ctx->fimc_dev; + struct fimc_frame *frame = &ctx->s_frame; + struct fimc_dma_offset *offset = &frame->dma_offset; + u32 cfg; + + /* Set the pixel offsets. */ + cfg = S5P_CIO_OFFS_HOR(offset->y_h); + cfg |= S5P_CIO_OFFS_VER(offset->y_v); + writel(cfg, dev->regs + S5P_CIIYOFF); + + cfg = S5P_CIO_OFFS_HOR(offset->cb_h); + cfg |= S5P_CIO_OFFS_VER(offset->cb_v); + writel(cfg, dev->regs + S5P_CIICBOFF); + + cfg = S5P_CIO_OFFS_HOR(offset->cr_h); + cfg |= S5P_CIO_OFFS_VER(offset->cr_v); + writel(cfg, dev->regs + S5P_CIICROFF); + + /* Input original and real size. */ + fimc_hw_set_in_dma_size(ctx); + + /* Use DMA autoload only in FIFO mode. */ + fimc_hw_en_autoload(dev, ctx->out_path == FIMC_LCDFIFO); + + /* Set the input DMA to process single frame only. */ + cfg = readl(dev->regs + S5P_MSCTRL); + cfg &= ~(S5P_MSCTRL_INFORMAT_MASK + | S5P_MSCTRL_IN_BURST_COUNT_MASK + | S5P_MSCTRL_INPUT_MASK + | S5P_MSCTRL_C_INT_IN_MASK + | S5P_MSCTRL_2P_IN_ORDER_MASK); + + cfg |= (S5P_MSCTRL_IN_BURST_COUNT(4) + | S5P_MSCTRL_INPUT_MEMORY + | S5P_MSCTRL_FIFO_CTRL_FULL); + + switch (frame->fmt->color) { + case S5P_FIMC_RGB565...S5P_FIMC_RGB888: + cfg |= S5P_MSCTRL_INFORMAT_RGB; + break; + case S5P_FIMC_YCBCR420: + cfg |= S5P_MSCTRL_INFORMAT_YCBCR420; + + if (frame->fmt->colplanes == 2) + cfg |= ctx->in_order_2p | S5P_MSCTRL_C_INT_IN_2PLANE; + else + cfg |= S5P_MSCTRL_C_INT_IN_3PLANE; + + break; + case S5P_FIMC_YCBYCR422...S5P_FIMC_CRYCBY422: + if (frame->fmt->colplanes == 1) { + cfg |= ctx->in_order_1p + | S5P_MSCTRL_INFORMAT_YCBCR422_1P; + } else { + cfg |= S5P_MSCTRL_INFORMAT_YCBCR422; + + if (frame->fmt->colplanes == 2) + cfg |= ctx->in_order_2p + | S5P_MSCTRL_C_INT_IN_2PLANE; + else + cfg |= S5P_MSCTRL_C_INT_IN_3PLANE; + } + break; + default: + break; + } + + writel(cfg, dev->regs + S5P_MSCTRL); + + /* Input/output DMA linear/tiled mode. */ + cfg = readl(dev->regs + S5P_CIDMAPARAM); + cfg &= ~S5P_CIDMAPARAM_TILE_MASK; + + if (tiled_fmt(ctx->s_frame.fmt)) + cfg |= S5P_CIDMAPARAM_R_64X32; + + if (tiled_fmt(ctx->d_frame.fmt)) + cfg |= S5P_CIDMAPARAM_W_64X32; + + writel(cfg, dev->regs + S5P_CIDMAPARAM); +} + + +void fimc_hw_set_input_path(struct fimc_ctx *ctx) +{ + struct fimc_dev *dev = ctx->fimc_dev; + + u32 cfg = readl(dev->regs + S5P_MSCTRL); + cfg &= ~S5P_MSCTRL_INPUT_MASK; + + if (ctx->in_path == FIMC_DMA) + cfg |= S5P_MSCTRL_INPUT_MEMORY; + else + cfg |= S5P_MSCTRL_INPUT_EXTCAM; + + writel(cfg, dev->regs + S5P_MSCTRL); +} + +void fimc_hw_set_output_path(struct fimc_ctx *ctx) +{ + struct fimc_dev *dev = ctx->fimc_dev; + + u32 cfg = readl(dev->regs + S5P_CISCCTRL); + cfg &= ~S5P_CISCCTRL_LCDPATHEN_FIFO; + if (ctx->out_path == FIMC_LCDFIFO) + cfg |= S5P_CISCCTRL_LCDPATHEN_FIFO; + writel(cfg, dev->regs + S5P_CISCCTRL); +} + +void fimc_hw_set_input_addr(struct fimc_dev *dev, struct fimc_addr *paddr) +{ + u32 cfg = readl(dev->regs + S5P_CIREAL_ISIZE); + cfg |= S5P_CIREAL_ISIZE_ADDR_CH_DIS; + writel(cfg, dev->regs + S5P_CIREAL_ISIZE); + + writel(paddr->y, dev->regs + S5P_CIIYSA(0)); + writel(paddr->cb, dev->regs + S5P_CIICBSA(0)); + writel(paddr->cr, dev->regs + S5P_CIICRSA(0)); + + cfg &= ~S5P_CIREAL_ISIZE_ADDR_CH_DIS; + writel(cfg, dev->regs + S5P_CIREAL_ISIZE); +} + +void fimc_hw_set_output_addr(struct fimc_dev *dev, + struct fimc_addr *paddr, int index) +{ + int i = (index == -1) ? 0 : index; + do { + writel(paddr->y, dev->regs + S5P_CIOYSA(i)); + writel(paddr->cb, dev->regs + S5P_CIOCBSA(i)); + writel(paddr->cr, dev->regs + S5P_CIOCRSA(i)); + dbg("dst_buf[%d]: 0x%X, cb: 0x%X, cr: 0x%X", + i, paddr->y, paddr->cb, paddr->cr); + } while (index == -1 && ++i < FIMC_MAX_OUT_BUFS); +} + +int fimc_hw_set_camera_polarity(struct fimc_dev *fimc, + struct s5p_fimc_isp_info *cam) +{ + u32 cfg = readl(fimc->regs + S5P_CIGCTRL); + + cfg &= ~(S5P_CIGCTRL_INVPOLPCLK | S5P_CIGCTRL_INVPOLVSYNC | + S5P_CIGCTRL_INVPOLHREF | S5P_CIGCTRL_INVPOLHSYNC | + S5P_CIGCTRL_INVPOLFIELD); + + if (cam->flags & V4L2_MBUS_PCLK_SAMPLE_FALLING) + cfg |= S5P_CIGCTRL_INVPOLPCLK; + + if (cam->flags & V4L2_MBUS_VSYNC_ACTIVE_LOW) + cfg |= S5P_CIGCTRL_INVPOLVSYNC; + + if (cam->flags & V4L2_MBUS_HSYNC_ACTIVE_LOW) + cfg |= S5P_CIGCTRL_INVPOLHREF; + + if (cam->flags & V4L2_MBUS_HSYNC_ACTIVE_LOW) + cfg |= S5P_CIGCTRL_INVPOLHSYNC; + + if (cam->flags & V4L2_MBUS_FIELD_EVEN_LOW) + cfg |= S5P_CIGCTRL_INVPOLFIELD; + + writel(cfg, fimc->regs + S5P_CIGCTRL); + + return 0; +} + +int fimc_hw_set_camera_source(struct fimc_dev *fimc, + struct s5p_fimc_isp_info *cam) +{ + struct fimc_frame *f = &fimc->vid_cap.ctx->s_frame; + u32 cfg = 0; + u32 bus_width; + int i; + + static const struct { + u32 pixelcode; + u32 cisrcfmt; + u16 bus_width; + } pix_desc[] = { + { V4L2_MBUS_FMT_YUYV8_2X8, S5P_CISRCFMT_ORDER422_YCBYCR, 8 }, + { V4L2_MBUS_FMT_YVYU8_2X8, S5P_CISRCFMT_ORDER422_YCRYCB, 8 }, + { V4L2_MBUS_FMT_VYUY8_2X8, S5P_CISRCFMT_ORDER422_CRYCBY, 8 }, + { V4L2_MBUS_FMT_UYVY8_2X8, S5P_CISRCFMT_ORDER422_CBYCRY, 8 }, + /* TODO: Add pixel codes for 16-bit bus width */ + }; + + if (cam->bus_type == FIMC_ITU_601 || cam->bus_type == FIMC_ITU_656) { + for (i = 0; i < ARRAY_SIZE(pix_desc); i++) { + if (fimc->vid_cap.mf.code == pix_desc[i].pixelcode) { + cfg = pix_desc[i].cisrcfmt; + bus_width = pix_desc[i].bus_width; + break; + } + } + + if (i == ARRAY_SIZE(pix_desc)) { + v4l2_err(fimc->vid_cap.vfd, + "Camera color format not supported: %d\n", + fimc->vid_cap.mf.code); + return -EINVAL; + } + + if (cam->bus_type == FIMC_ITU_601) { + if (bus_width == 8) + cfg |= S5P_CISRCFMT_ITU601_8BIT; + else if (bus_width == 16) + cfg |= S5P_CISRCFMT_ITU601_16BIT; + } /* else defaults to ITU-R BT.656 8-bit */ + } else if (cam->bus_type == FIMC_MIPI_CSI2) { + if (fimc_fmt_is_jpeg(f->fmt->color)) + cfg |= S5P_CISRCFMT_ITU601_8BIT; + } + + cfg |= S5P_CISRCFMT_HSIZE(f->o_width) | S5P_CISRCFMT_VSIZE(f->o_height); + writel(cfg, fimc->regs + S5P_CISRCFMT); + return 0; +} + + +int fimc_hw_set_camera_offset(struct fimc_dev *fimc, struct fimc_frame *f) +{ + u32 hoff2, voff2; + + u32 cfg = readl(fimc->regs + S5P_CIWDOFST); + + cfg &= ~(S5P_CIWDOFST_HOROFF_MASK | S5P_CIWDOFST_VEROFF_MASK); + cfg |= S5P_CIWDOFST_OFF_EN | + S5P_CIWDOFST_HOROFF(f->offs_h) | + S5P_CIWDOFST_VEROFF(f->offs_v); + + writel(cfg, fimc->regs + S5P_CIWDOFST); + + /* See CIWDOFSTn register description in the datasheet for details. */ + hoff2 = f->o_width - f->width - f->offs_h; + voff2 = f->o_height - f->height - f->offs_v; + cfg = S5P_CIWDOFST2_HOROFF(hoff2) | S5P_CIWDOFST2_VEROFF(voff2); + + writel(cfg, fimc->regs + S5P_CIWDOFST2); + return 0; +} + +int fimc_hw_set_camera_type(struct fimc_dev *fimc, + struct s5p_fimc_isp_info *cam) +{ + u32 cfg, tmp; + struct fimc_vid_cap *vid_cap = &fimc->vid_cap; + + cfg = readl(fimc->regs + S5P_CIGCTRL); + + /* Select ITU B interface, disable Writeback path and test pattern. */ + cfg &= ~(S5P_CIGCTRL_TESTPAT_MASK | S5P_CIGCTRL_SELCAM_ITU_A | + S5P_CIGCTRL_SELCAM_MIPI | S5P_CIGCTRL_CAMIF_SELWB | + S5P_CIGCTRL_SELCAM_MIPI_A | S5P_CIGCTRL_CAM_JPEG); + + if (cam->bus_type == FIMC_MIPI_CSI2) { + cfg |= S5P_CIGCTRL_SELCAM_MIPI; + + if (cam->mux_id == 0) + cfg |= S5P_CIGCTRL_SELCAM_MIPI_A; + + /* TODO: add remaining supported formats. */ + switch (vid_cap->mf.code) { + case V4L2_MBUS_FMT_VYUY8_2X8: + tmp = S5P_CSIIMGFMT_YCBCR422_8BIT; + break; + case V4L2_MBUS_FMT_JPEG_1X8: + tmp = S5P_CSIIMGFMT_USER(1); + cfg |= S5P_CIGCTRL_CAM_JPEG; + break; + default: + v4l2_err(fimc->vid_cap.vfd, + "Not supported camera pixel format: %d", + vid_cap->mf.code); + return -EINVAL; + } + tmp |= (cam->csi_data_align == 32) << 8; + + writel(tmp, fimc->regs + S5P_CSIIMGFMT); + + } else if (cam->bus_type == FIMC_ITU_601 || + cam->bus_type == FIMC_ITU_656) { + if (cam->mux_id == 0) /* ITU-A, ITU-B: 0, 1 */ + cfg |= S5P_CIGCTRL_SELCAM_ITU_A; + } else if (cam->bus_type == FIMC_LCD_WB) { + cfg |= S5P_CIGCTRL_CAMIF_SELWB; + } else { + err("invalid camera bus type selected\n"); + return -EINVAL; + } + writel(cfg, fimc->regs + S5P_CIGCTRL); + + return 0; +} diff --git a/drivers/media/video/s5p-fimc/mipi-csis.c b/drivers/media/video/s5p-fimc/mipi-csis.c new file mode 100644 index 00000000..f44f6903 --- /dev/null +++ b/drivers/media/video/s5p-fimc/mipi-csis.c @@ -0,0 +1,729 @@ +/* + * Samsung S5P/EXYNOS4 SoC series MIPI-CSI receiver driver + * + * Copyright (C) 2011 - 2012 Samsung Electronics Co., Ltd. + * Sylwester Nawrocki, <s.nawrocki@samsung.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include <linux/clk.h> +#include <linux/delay.h> +#include <linux/device.h> +#include <linux/errno.h> +#include <linux/interrupt.h> +#include <linux/io.h> +#include <linux/irq.h> +#include <linux/kernel.h> +#include <linux/memory.h> +#include <linux/module.h> +#include <linux/platform_device.h> +#include <linux/pm_runtime.h> +#include <linux/regulator/consumer.h> +#include <linux/slab.h> +#include <linux/spinlock.h> +#include <linux/videodev2.h> +#include <media/v4l2-subdev.h> +#include <plat/mipi_csis.h> +#include "mipi-csis.h" + +static int debug; +module_param(debug, int, 0644); +MODULE_PARM_DESC(debug, "Debug level (0-1)"); + +/* Register map definition */ + +/* CSIS global control */ +#define S5PCSIS_CTRL 0x00 +#define S5PCSIS_CTRL_DPDN_DEFAULT (0 << 31) +#define S5PCSIS_CTRL_DPDN_SWAP (1 << 31) +#define S5PCSIS_CTRL_ALIGN_32BIT (1 << 20) +#define S5PCSIS_CTRL_UPDATE_SHADOW (1 << 16) +#define S5PCSIS_CTRL_WCLK_EXTCLK (1 << 8) +#define S5PCSIS_CTRL_RESET (1 << 4) +#define S5PCSIS_CTRL_ENABLE (1 << 0) + +/* D-PHY control */ +#define S5PCSIS_DPHYCTRL 0x04 +#define S5PCSIS_DPHYCTRL_HSS_MASK (0x1f << 27) +#define S5PCSIS_DPHYCTRL_ENABLE (0x1f << 0) + +#define S5PCSIS_CONFIG 0x08 +#define S5PCSIS_CFG_FMT_YCBCR422_8BIT (0x1e << 2) +#define S5PCSIS_CFG_FMT_RAW8 (0x2a << 2) +#define S5PCSIS_CFG_FMT_RAW10 (0x2b << 2) +#define S5PCSIS_CFG_FMT_RAW12 (0x2c << 2) +/* User defined formats, x = 1...4 */ +#define S5PCSIS_CFG_FMT_USER(x) ((0x30 + x - 1) << 2) +#define S5PCSIS_CFG_FMT_MASK (0x3f << 2) +#define S5PCSIS_CFG_NR_LANE_MASK 3 + +/* Interrupt mask. */ +#define S5PCSIS_INTMSK 0x10 +#define S5PCSIS_INTMSK_EN_ALL 0xf000003f +#define S5PCSIS_INTSRC 0x14 + +/* Pixel resolution */ +#define S5PCSIS_RESOL 0x2c +#define CSIS_MAX_PIX_WIDTH 0xffff +#define CSIS_MAX_PIX_HEIGHT 0xffff + +enum { + CSIS_CLK_MUX, + CSIS_CLK_GATE, +}; + +static char *csi_clock_name[] = { + [CSIS_CLK_MUX] = "sclk_csis", + [CSIS_CLK_GATE] = "csis", +}; +#define NUM_CSIS_CLOCKS ARRAY_SIZE(csi_clock_name) + +static const char * const csis_supply_name[] = { + "vdd11", /* 1.1V or 1.2V (s5pc100) MIPI CSI suppply */ + "vdd18", /* VDD 1.8V and MIPI CSI PLL supply */ +}; +#define CSIS_NUM_SUPPLIES ARRAY_SIZE(csis_supply_name) + +enum { + ST_POWERED = 1, + ST_STREAMING = 2, + ST_SUSPENDED = 4, +}; + +/** + * struct csis_state - the driver's internal state data structure + * @lock: mutex serializing the subdev and power management operations, + * protecting @format and @flags members + * @pads: CSIS pads array + * @sd: v4l2_subdev associated with CSIS device instance + * @pdev: CSIS platform device + * @regs: mmaped I/O registers memory + * @clock: CSIS clocks + * @irq: requested s5p-mipi-csis irq number + * @flags: the state variable for power and streaming control + * @csis_fmt: current CSIS pixel format + * @format: common media bus format for the source and sink pad + */ +struct csis_state { + struct mutex lock; + struct media_pad pads[CSIS_PADS_NUM]; + struct v4l2_subdev sd; + struct platform_device *pdev; + void __iomem *regs; + struct regulator_bulk_data supplies[CSIS_NUM_SUPPLIES]; + struct clk *clock[NUM_CSIS_CLOCKS]; + int irq; + u32 flags; + const struct csis_pix_format *csis_fmt; + struct v4l2_mbus_framefmt format; +}; + +/** + * struct csis_pix_format - CSIS pixel format description + * @pix_width_alignment: horizontal pixel alignment, width will be + * multiple of 2^pix_width_alignment + * @code: corresponding media bus code + * @fmt_reg: S5PCSIS_CONFIG register value + */ +struct csis_pix_format { + unsigned int pix_width_alignment; + enum v4l2_mbus_pixelcode code; + u32 fmt_reg; +}; + +static const struct csis_pix_format s5pcsis_formats[] = { + { + .code = V4L2_MBUS_FMT_VYUY8_2X8, + .fmt_reg = S5PCSIS_CFG_FMT_YCBCR422_8BIT, + }, { + .code = V4L2_MBUS_FMT_JPEG_1X8, + .fmt_reg = S5PCSIS_CFG_FMT_USER(1), + }, +}; + +#define s5pcsis_write(__csis, __r, __v) writel(__v, __csis->regs + __r) +#define s5pcsis_read(__csis, __r) readl(__csis->regs + __r) + +static struct csis_state *sd_to_csis_state(struct v4l2_subdev *sdev) +{ + return container_of(sdev, struct csis_state, sd); +} + +static const struct csis_pix_format *find_csis_format( + struct v4l2_mbus_framefmt *mf) +{ + int i; + + for (i = 0; i < ARRAY_SIZE(s5pcsis_formats); i++) + if (mf->code == s5pcsis_formats[i].code) + return &s5pcsis_formats[i]; + return NULL; +} + +static void s5pcsis_enable_interrupts(struct csis_state *state, bool on) +{ + u32 val = s5pcsis_read(state, S5PCSIS_INTMSK); + + val = on ? val | S5PCSIS_INTMSK_EN_ALL : + val & ~S5PCSIS_INTMSK_EN_ALL; + s5pcsis_write(state, S5PCSIS_INTMSK, val); +} + +static void s5pcsis_reset(struct csis_state *state) +{ + u32 val = s5pcsis_read(state, S5PCSIS_CTRL); + + s5pcsis_write(state, S5PCSIS_CTRL, val | S5PCSIS_CTRL_RESET); + udelay(10); +} + +static void s5pcsis_system_enable(struct csis_state *state, int on) +{ + u32 val; + + val = s5pcsis_read(state, S5PCSIS_CTRL); + if (on) + val |= S5PCSIS_CTRL_ENABLE; + else + val &= ~S5PCSIS_CTRL_ENABLE; + s5pcsis_write(state, S5PCSIS_CTRL, val); + + val = s5pcsis_read(state, S5PCSIS_DPHYCTRL); + if (on) + val |= S5PCSIS_DPHYCTRL_ENABLE; + else + val &= ~S5PCSIS_DPHYCTRL_ENABLE; + s5pcsis_write(state, S5PCSIS_DPHYCTRL, val); +} + +/* Called with the state.lock mutex held */ +static void __s5pcsis_set_format(struct csis_state *state) +{ + struct v4l2_mbus_framefmt *mf = &state->format; + u32 val; + + v4l2_dbg(1, debug, &state->sd, "fmt: %d, %d x %d\n", + mf->code, mf->width, mf->height); + + /* Color format */ + val = s5pcsis_read(state, S5PCSIS_CONFIG); + val = (val & ~S5PCSIS_CFG_FMT_MASK) | state->csis_fmt->fmt_reg; + s5pcsis_write(state, S5PCSIS_CONFIG, val); + + /* Pixel resolution */ + val = (mf->width << 16) | mf->height; + s5pcsis_write(state, S5PCSIS_RESOL, val); +} + +static void s5pcsis_set_hsync_settle(struct csis_state *state, int settle) +{ + u32 val = s5pcsis_read(state, S5PCSIS_DPHYCTRL); + + val = (val & ~S5PCSIS_DPHYCTRL_HSS_MASK) | (settle << 27); + s5pcsis_write(state, S5PCSIS_DPHYCTRL, val); +} + +static void s5pcsis_set_params(struct csis_state *state) +{ + struct s5p_platform_mipi_csis *pdata = state->pdev->dev.platform_data; + u32 val; + + val = s5pcsis_read(state, S5PCSIS_CONFIG); + val = (val & ~S5PCSIS_CFG_NR_LANE_MASK) | (pdata->lanes - 1); + s5pcsis_write(state, S5PCSIS_CONFIG, val); + + __s5pcsis_set_format(state); + s5pcsis_set_hsync_settle(state, pdata->hs_settle); + + val = s5pcsis_read(state, S5PCSIS_CTRL); + if (pdata->alignment == 32) + val |= S5PCSIS_CTRL_ALIGN_32BIT; + else /* 24-bits */ + val &= ~S5PCSIS_CTRL_ALIGN_32BIT; + /* Not using external clock. */ + val &= ~S5PCSIS_CTRL_WCLK_EXTCLK; + s5pcsis_write(state, S5PCSIS_CTRL, val); + + /* Update the shadow register. */ + val = s5pcsis_read(state, S5PCSIS_CTRL); + s5pcsis_write(state, S5PCSIS_CTRL, val | S5PCSIS_CTRL_UPDATE_SHADOW); +} + +static void s5pcsis_clk_put(struct csis_state *state) +{ + int i; + + for (i = 0; i < NUM_CSIS_CLOCKS; i++) { + if (IS_ERR_OR_NULL(state->clock[i])) + continue; + clk_unprepare(state->clock[i]); + clk_put(state->clock[i]); + state->clock[i] = NULL; + } +} + +static int s5pcsis_clk_get(struct csis_state *state) +{ + struct device *dev = &state->pdev->dev; + int i, ret; + + for (i = 0; i < NUM_CSIS_CLOCKS; i++) { + state->clock[i] = clk_get(dev, csi_clock_name[i]); + if (IS_ERR(state->clock[i])) + goto err; + ret = clk_prepare(state->clock[i]); + if (ret < 0) { + clk_put(state->clock[i]); + state->clock[i] = NULL; + goto err; + } + } + return 0; +err: + s5pcsis_clk_put(state); + dev_err(dev, "failed to get clock: %s\n", csi_clock_name[i]); + return -ENXIO; +} + +static int s5pcsis_s_power(struct v4l2_subdev *sd, int on) +{ + struct csis_state *state = sd_to_csis_state(sd); + struct device *dev = &state->pdev->dev; + + if (on) + return pm_runtime_get_sync(dev); + + return pm_runtime_put_sync(dev); +} + +static void s5pcsis_start_stream(struct csis_state *state) +{ + s5pcsis_reset(state); + s5pcsis_set_params(state); + s5pcsis_system_enable(state, true); + s5pcsis_enable_interrupts(state, true); +} + +static void s5pcsis_stop_stream(struct csis_state *state) +{ + s5pcsis_enable_interrupts(state, false); + s5pcsis_system_enable(state, false); +} + +/* v4l2_subdev operations */ +static int s5pcsis_s_stream(struct v4l2_subdev *sd, int enable) +{ + struct csis_state *state = sd_to_csis_state(sd); + int ret = 0; + + v4l2_dbg(1, debug, sd, "%s: %d, state: 0x%x\n", + __func__, enable, state->flags); + + if (enable) { + ret = pm_runtime_get_sync(&state->pdev->dev); + if (ret && ret != 1) + return ret; + } + mutex_lock(&state->lock); + if (enable) { + if (state->flags & ST_SUSPENDED) { + ret = -EBUSY; + goto unlock; + } + s5pcsis_start_stream(state); + state->flags |= ST_STREAMING; + } else { + s5pcsis_stop_stream(state); + state->flags &= ~ST_STREAMING; + } +unlock: + mutex_unlock(&state->lock); + if (!enable) + pm_runtime_put(&state->pdev->dev); + + return ret == 1 ? 0 : ret; +} + +static int s5pcsis_enum_mbus_code(struct v4l2_subdev *sd, + struct v4l2_subdev_fh *fh, + struct v4l2_subdev_mbus_code_enum *code) +{ + if (code->index >= ARRAY_SIZE(s5pcsis_formats)) + return -EINVAL; + + code->code = s5pcsis_formats[code->index].code; + return 0; +} + +static struct csis_pix_format const *s5pcsis_try_format( + struct v4l2_mbus_framefmt *mf) +{ + struct csis_pix_format const *csis_fmt; + + csis_fmt = find_csis_format(mf); + if (csis_fmt == NULL) + csis_fmt = &s5pcsis_formats[0]; + + mf->code = csis_fmt->code; + v4l_bound_align_image(&mf->width, 1, CSIS_MAX_PIX_WIDTH, + csis_fmt->pix_width_alignment, + &mf->height, 1, CSIS_MAX_PIX_HEIGHT, 1, + 0); + return csis_fmt; +} + +static struct v4l2_mbus_framefmt *__s5pcsis_get_format( + struct csis_state *state, struct v4l2_subdev_fh *fh, + u32 pad, enum v4l2_subdev_format_whence which) +{ + if (which == V4L2_SUBDEV_FORMAT_TRY) + return fh ? v4l2_subdev_get_try_format(fh, pad) : NULL; + + return &state->format; +} + +static int s5pcsis_set_fmt(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh, + struct v4l2_subdev_format *fmt) +{ + struct csis_state *state = sd_to_csis_state(sd); + struct csis_pix_format const *csis_fmt; + struct v4l2_mbus_framefmt *mf; + + if (fmt->pad != CSIS_PAD_SOURCE && fmt->pad != CSIS_PAD_SINK) + return -EINVAL; + + mf = __s5pcsis_get_format(state, fh, fmt->pad, fmt->which); + + if (fmt->pad == CSIS_PAD_SOURCE) { + if (mf) { + mutex_lock(&state->lock); + fmt->format = *mf; + mutex_unlock(&state->lock); + } + return 0; + } + csis_fmt = s5pcsis_try_format(&fmt->format); + if (mf) { + mutex_lock(&state->lock); + *mf = fmt->format; + if (fmt->which == V4L2_SUBDEV_FORMAT_ACTIVE) + state->csis_fmt = csis_fmt; + mutex_unlock(&state->lock); + } + return 0; +} + +static int s5pcsis_get_fmt(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh, + struct v4l2_subdev_format *fmt) +{ + struct csis_state *state = sd_to_csis_state(sd); + struct v4l2_mbus_framefmt *mf; + + if (fmt->pad != CSIS_PAD_SOURCE && fmt->pad != CSIS_PAD_SINK) + return -EINVAL; + + mf = __s5pcsis_get_format(state, fh, fmt->pad, fmt->which); + if (!mf) + return -EINVAL; + + mutex_lock(&state->lock); + fmt->format = *mf; + mutex_unlock(&state->lock); + return 0; +} + +static int s5pcsis_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh) +{ + struct v4l2_mbus_framefmt *format = v4l2_subdev_get_try_format(fh, 0); + + format->colorspace = V4L2_COLORSPACE_JPEG; + format->code = s5pcsis_formats[0].code; + format->width = S5PCSIS_DEF_PIX_WIDTH; + format->height = S5PCSIS_DEF_PIX_HEIGHT; + format->field = V4L2_FIELD_NONE; + + return 0; +} + +static const struct v4l2_subdev_internal_ops s5pcsis_sd_internal_ops = { + .open = s5pcsis_open, +}; + +static struct v4l2_subdev_core_ops s5pcsis_core_ops = { + .s_power = s5pcsis_s_power, +}; + +static struct v4l2_subdev_pad_ops s5pcsis_pad_ops = { + .enum_mbus_code = s5pcsis_enum_mbus_code, + .get_fmt = s5pcsis_get_fmt, + .set_fmt = s5pcsis_set_fmt, +}; + +static struct v4l2_subdev_video_ops s5pcsis_video_ops = { + .s_stream = s5pcsis_s_stream, +}; + +static struct v4l2_subdev_ops s5pcsis_subdev_ops = { + .core = &s5pcsis_core_ops, + .pad = &s5pcsis_pad_ops, + .video = &s5pcsis_video_ops, +}; + +static irqreturn_t s5pcsis_irq_handler(int irq, void *dev_id) +{ + struct csis_state *state = dev_id; + u32 val; + + /* Just clear the interrupt pending bits. */ + val = s5pcsis_read(state, S5PCSIS_INTSRC); + s5pcsis_write(state, S5PCSIS_INTSRC, val); + + return IRQ_HANDLED; +} + +static int __devinit s5pcsis_probe(struct platform_device *pdev) +{ + struct s5p_platform_mipi_csis *pdata; + struct resource *mem_res; + struct csis_state *state; + int ret = -ENOMEM; + int i; + + state = devm_kzalloc(&pdev->dev, sizeof(*state), GFP_KERNEL); + if (!state) + return -ENOMEM; + + mutex_init(&state->lock); + state->pdev = pdev; + + pdata = pdev->dev.platform_data; + if (pdata == NULL || pdata->phy_enable == NULL) { + dev_err(&pdev->dev, "Platform data not fully specified\n"); + return -EINVAL; + } + + if ((pdev->id == 1 && pdata->lanes > CSIS1_MAX_LANES) || + pdata->lanes > CSIS0_MAX_LANES) { + dev_err(&pdev->dev, "Unsupported number of data lanes: %d\n", + pdata->lanes); + return -EINVAL; + } + + mem_res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + state->regs = devm_request_and_ioremap(&pdev->dev, mem_res); + if (state->regs == NULL) { + dev_err(&pdev->dev, "Failed to request and remap io memory\n"); + return -ENXIO; + } + + state->irq = platform_get_irq(pdev, 0); + if (state->irq < 0) { + dev_err(&pdev->dev, "Failed to get irq\n"); + return state->irq; + } + + for (i = 0; i < CSIS_NUM_SUPPLIES; i++) + state->supplies[i].supply = csis_supply_name[i]; + + ret = regulator_bulk_get(&pdev->dev, CSIS_NUM_SUPPLIES, + state->supplies); + if (ret) + return ret; + + ret = s5pcsis_clk_get(state); + if (ret) + goto e_clkput; + + clk_enable(state->clock[CSIS_CLK_MUX]); + if (pdata->clk_rate) + clk_set_rate(state->clock[CSIS_CLK_MUX], pdata->clk_rate); + else + dev_WARN(&pdev->dev, "No clock frequency specified!\n"); + + ret = devm_request_irq(&pdev->dev, state->irq, s5pcsis_irq_handler, + 0, dev_name(&pdev->dev), state); + if (ret) { + dev_err(&pdev->dev, "Interrupt request failed\n"); + goto e_regput; + } + + v4l2_subdev_init(&state->sd, &s5pcsis_subdev_ops); + state->sd.owner = THIS_MODULE; + strlcpy(state->sd.name, dev_name(&pdev->dev), sizeof(state->sd.name)); + state->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE; + state->csis_fmt = &s5pcsis_formats[0]; + + state->format.code = s5pcsis_formats[0].code; + state->format.width = S5PCSIS_DEF_PIX_WIDTH; + state->format.height = S5PCSIS_DEF_PIX_HEIGHT; + + state->pads[CSIS_PAD_SINK].flags = MEDIA_PAD_FL_SINK; + state->pads[CSIS_PAD_SOURCE].flags = MEDIA_PAD_FL_SOURCE; + ret = media_entity_init(&state->sd.entity, + CSIS_PADS_NUM, state->pads, 0); + if (ret < 0) + goto e_clkput; + + /* This allows to retrieve the platform device id by the host driver */ + v4l2_set_subdevdata(&state->sd, pdev); + + /* .. and a pointer to the subdev. */ + platform_set_drvdata(pdev, &state->sd); + + pm_runtime_enable(&pdev->dev); + return 0; + +e_regput: + regulator_bulk_free(CSIS_NUM_SUPPLIES, state->supplies); +e_clkput: + clk_disable(state->clock[CSIS_CLK_MUX]); + s5pcsis_clk_put(state); + return ret; +} + +static int s5pcsis_pm_suspend(struct device *dev, bool runtime) +{ + struct s5p_platform_mipi_csis *pdata = dev->platform_data; + struct platform_device *pdev = to_platform_device(dev); + struct v4l2_subdev *sd = platform_get_drvdata(pdev); + struct csis_state *state = sd_to_csis_state(sd); + int ret = 0; + + v4l2_dbg(1, debug, sd, "%s: flags: 0x%x\n", + __func__, state->flags); + + mutex_lock(&state->lock); + if (state->flags & ST_POWERED) { + s5pcsis_stop_stream(state); + ret = pdata->phy_enable(state->pdev, false); + if (ret) + goto unlock; + ret = regulator_bulk_disable(CSIS_NUM_SUPPLIES, + state->supplies); + if (ret) + goto unlock; + clk_disable(state->clock[CSIS_CLK_GATE]); + state->flags &= ~ST_POWERED; + if (!runtime) + state->flags |= ST_SUSPENDED; + } + unlock: + mutex_unlock(&state->lock); + return ret ? -EAGAIN : 0; +} + +static int s5pcsis_pm_resume(struct device *dev, bool runtime) +{ + struct s5p_platform_mipi_csis *pdata = dev->platform_data; + struct platform_device *pdev = to_platform_device(dev); + struct v4l2_subdev *sd = platform_get_drvdata(pdev); + struct csis_state *state = sd_to_csis_state(sd); + int ret = 0; + + v4l2_dbg(1, debug, sd, "%s: flags: 0x%x\n", + __func__, state->flags); + + mutex_lock(&state->lock); + if (!runtime && !(state->flags & ST_SUSPENDED)) + goto unlock; + + if (!(state->flags & ST_POWERED)) { + ret = regulator_bulk_enable(CSIS_NUM_SUPPLIES, + state->supplies); + if (ret) + goto unlock; + ret = pdata->phy_enable(state->pdev, true); + if (!ret) { + state->flags |= ST_POWERED; + } else { + regulator_bulk_disable(CSIS_NUM_SUPPLIES, + state->supplies); + goto unlock; + } + clk_enable(state->clock[CSIS_CLK_GATE]); + } + if (state->flags & ST_STREAMING) + s5pcsis_start_stream(state); + + state->flags &= ~ST_SUSPENDED; + unlock: + mutex_unlock(&state->lock); + return ret ? -EAGAIN : 0; +} + +#ifdef CONFIG_PM_SLEEP +static int s5pcsis_suspend(struct device *dev) +{ + return s5pcsis_pm_suspend(dev, false); +} + +static int s5pcsis_resume(struct device *dev) +{ + return s5pcsis_pm_resume(dev, false); +} +#endif + +#ifdef CONFIG_PM_RUNTIME +static int s5pcsis_runtime_suspend(struct device *dev) +{ + return s5pcsis_pm_suspend(dev, true); +} + +static int s5pcsis_runtime_resume(struct device *dev) +{ + return s5pcsis_pm_resume(dev, true); +} +#endif + +static int __devexit s5pcsis_remove(struct platform_device *pdev) +{ + struct v4l2_subdev *sd = platform_get_drvdata(pdev); + struct csis_state *state = sd_to_csis_state(sd); + + pm_runtime_disable(&pdev->dev); + s5pcsis_pm_suspend(&pdev->dev, false); + clk_disable(state->clock[CSIS_CLK_MUX]); + pm_runtime_set_suspended(&pdev->dev); + s5pcsis_clk_put(state); + regulator_bulk_free(CSIS_NUM_SUPPLIES, state->supplies); + + media_entity_cleanup(&state->sd.entity); + + return 0; +} + +static const struct dev_pm_ops s5pcsis_pm_ops = { + SET_RUNTIME_PM_OPS(s5pcsis_runtime_suspend, s5pcsis_runtime_resume, + NULL) + SET_SYSTEM_SLEEP_PM_OPS(s5pcsis_suspend, s5pcsis_resume) +}; + +static struct platform_driver s5pcsis_driver = { + .probe = s5pcsis_probe, + .remove = __devexit_p(s5pcsis_remove), + .driver = { + .name = CSIS_DRIVER_NAME, + .owner = THIS_MODULE, + .pm = &s5pcsis_pm_ops, + }, +}; + +static int __init s5pcsis_init(void) +{ + return platform_driver_probe(&s5pcsis_driver, s5pcsis_probe); +} + +static void __exit s5pcsis_exit(void) +{ + platform_driver_unregister(&s5pcsis_driver); +} + +module_init(s5pcsis_init); +module_exit(s5pcsis_exit); + +MODULE_AUTHOR("Sylwester Nawrocki <s.nawrocki@samsung.com>"); +MODULE_DESCRIPTION("S5P/EXYNOS4 MIPI CSI receiver driver"); +MODULE_LICENSE("GPL"); diff --git a/drivers/media/video/s5p-fimc/mipi-csis.h b/drivers/media/video/s5p-fimc/mipi-csis.h new file mode 100644 index 00000000..27092863 --- /dev/null +++ b/drivers/media/video/s5p-fimc/mipi-csis.h @@ -0,0 +1,25 @@ +/* + * Samsung S5P/EXYNOS4 SoC series MIPI-CSI receiver driver + * + * Copyright (C) 2011 Samsung Electronics Co., Ltd. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#ifndef S5P_MIPI_CSIS_H_ +#define S5P_MIPI_CSIS_H_ + +#define CSIS_DRIVER_NAME "s5p-mipi-csis" +#define CSIS_MAX_ENTITIES 2 +#define CSIS0_MAX_LANES 4 +#define CSIS1_MAX_LANES 2 + +#define CSIS_PAD_SINK 0 +#define CSIS_PAD_SOURCE 1 +#define CSIS_PADS_NUM 2 + +#define S5PCSIS_DEF_PIX_WIDTH 640 +#define S5PCSIS_DEF_PIX_HEIGHT 480 + +#endif diff --git a/drivers/media/video/s5p-fimc/regs-fimc.h b/drivers/media/video/s5p-fimc/regs-fimc.h new file mode 100644 index 00000000..c7a5bc51 --- /dev/null +++ b/drivers/media/video/s5p-fimc/regs-fimc.h @@ -0,0 +1,301 @@ +/* + * Register definition file for Samsung Camera Interface (FIMC) driver + * + * Copyright (c) 2010 Samsung Electronics + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#ifndef REGS_FIMC_H_ +#define REGS_FIMC_H_ + +/* Input source format */ +#define S5P_CISRCFMT 0x00 +#define S5P_CISRCFMT_ITU601_8BIT (1 << 31) +#define S5P_CISRCFMT_ITU601_16BIT (1 << 29) +#define S5P_CISRCFMT_ORDER422_YCBYCR (0 << 14) +#define S5P_CISRCFMT_ORDER422_YCRYCB (1 << 14) +#define S5P_CISRCFMT_ORDER422_CBYCRY (2 << 14) +#define S5P_CISRCFMT_ORDER422_CRYCBY (3 << 14) +#define S5P_CISRCFMT_HSIZE(x) ((x) << 16) +#define S5P_CISRCFMT_VSIZE(x) ((x) << 0) + +/* Window offset */ +#define S5P_CIWDOFST 0x04 +#define S5P_CIWDOFST_OFF_EN (1 << 31) +#define S5P_CIWDOFST_CLROVFIY (1 << 30) +#define S5P_CIWDOFST_CLROVRLB (1 << 29) +#define S5P_CIWDOFST_HOROFF_MASK (0x7ff << 16) +#define S5P_CIWDOFST_CLROVFICB (1 << 15) +#define S5P_CIWDOFST_CLROVFICR (1 << 14) +#define S5P_CIWDOFST_HOROFF(x) ((x) << 16) +#define S5P_CIWDOFST_VEROFF(x) ((x) << 0) +#define S5P_CIWDOFST_VEROFF_MASK (0xfff << 0) + +/* Global control */ +#define S5P_CIGCTRL 0x08 +#define S5P_CIGCTRL_SWRST (1 << 31) +#define S5P_CIGCTRL_CAMRST_A (1 << 30) +#define S5P_CIGCTRL_SELCAM_ITU_A (1 << 29) +#define S5P_CIGCTRL_TESTPAT_NORMAL (0 << 27) +#define S5P_CIGCTRL_TESTPAT_COLOR_BAR (1 << 27) +#define S5P_CIGCTRL_TESTPAT_HOR_INC (2 << 27) +#define S5P_CIGCTRL_TESTPAT_VER_INC (3 << 27) +#define S5P_CIGCTRL_TESTPAT_MASK (3 << 27) +#define S5P_CIGCTRL_TESTPAT_SHIFT (27) +#define S5P_CIGCTRL_INVPOLPCLK (1 << 26) +#define S5P_CIGCTRL_INVPOLVSYNC (1 << 25) +#define S5P_CIGCTRL_INVPOLHREF (1 << 24) +#define S5P_CIGCTRL_IRQ_OVFEN (1 << 22) +#define S5P_CIGCTRL_HREF_MASK (1 << 21) +#define S5P_CIGCTRL_IRQ_LEVEL (1 << 20) +#define S5P_CIGCTRL_IRQ_CLR (1 << 19) +#define S5P_CIGCTRL_IRQ_ENABLE (1 << 16) +#define S5P_CIGCTRL_SHDW_DISABLE (1 << 12) +#define S5P_CIGCTRL_CAM_JPEG (1 << 8) +#define S5P_CIGCTRL_SELCAM_MIPI_A (1 << 7) +#define S5P_CIGCTRL_CAMIF_SELWB (1 << 6) +/* 0 - ITU601; 1 - ITU709 */ +#define S5P_CIGCTRL_CSC_ITU601_709 (1 << 5) +#define S5P_CIGCTRL_INVPOLHSYNC (1 << 4) +#define S5P_CIGCTRL_SELCAM_MIPI (1 << 3) +#define S5P_CIGCTRL_INVPOLFIELD (1 << 1) +#define S5P_CIGCTRL_INTERLACE (1 << 0) + +/* Window offset 2 */ +#define S5P_CIWDOFST2 0x14 +#define S5P_CIWDOFST2_HOROFF_MASK (0xfff << 16) +#define S5P_CIWDOFST2_VEROFF_MASK (0xfff << 0) +#define S5P_CIWDOFST2_HOROFF(x) ((x) << 16) +#define S5P_CIWDOFST2_VEROFF(x) ((x) << 0) + +/* Output DMA Y/Cb/Cr plane start addresses */ +#define S5P_CIOYSA(n) (0x18 + (n) * 4) +#define S5P_CIOCBSA(n) (0x28 + (n) * 4) +#define S5P_CIOCRSA(n) (0x38 + (n) * 4) + +/* Target image format */ +#define S5P_CITRGFMT 0x48 +#define S5P_CITRGFMT_INROT90 (1 << 31) +#define S5P_CITRGFMT_YCBCR420 (0 << 29) +#define S5P_CITRGFMT_YCBCR422 (1 << 29) +#define S5P_CITRGFMT_YCBCR422_1P (2 << 29) +#define S5P_CITRGFMT_RGB (3 << 29) +#define S5P_CITRGFMT_FMT_MASK (3 << 29) +#define S5P_CITRGFMT_HSIZE_MASK (0xfff << 16) +#define S5P_CITRGFMT_FLIP_SHIFT (14) +#define S5P_CITRGFMT_FLIP_NORMAL (0 << 14) +#define S5P_CITRGFMT_FLIP_X_MIRROR (1 << 14) +#define S5P_CITRGFMT_FLIP_Y_MIRROR (2 << 14) +#define S5P_CITRGFMT_FLIP_180 (3 << 14) +#define S5P_CITRGFMT_FLIP_MASK (3 << 14) +#define S5P_CITRGFMT_OUTROT90 (1 << 13) +#define S5P_CITRGFMT_VSIZE_MASK (0xfff << 0) +#define S5P_CITRGFMT_HSIZE(x) ((x) << 16) +#define S5P_CITRGFMT_VSIZE(x) ((x) << 0) + +/* Output DMA control */ +#define S5P_CIOCTRL 0x4c +#define S5P_CIOCTRL_ORDER422_MASK (3 << 0) +#define S5P_CIOCTRL_ORDER422_CRYCBY (0 << 0) +#define S5P_CIOCTRL_ORDER422_CBYCRY (1 << 0) +#define S5P_CIOCTRL_ORDER422_YCRYCB (2 << 0) +#define S5P_CIOCTRL_ORDER422_YCBYCR (3 << 0) +#define S5P_CIOCTRL_LASTIRQ_ENABLE (1 << 2) +#define S5P_CIOCTRL_YCBCR_3PLANE (0 << 3) +#define S5P_CIOCTRL_YCBCR_2PLANE (1 << 3) +#define S5P_CIOCTRL_YCBCR_PLANE_MASK (1 << 3) +#define S5P_CIOCTRL_ALPHA_OUT_MASK (0xff << 4) +#define S5P_CIOCTRL_RGB16FMT_MASK (3 << 16) +#define S5P_CIOCTRL_RGB565 (0 << 16) +#define S5P_CIOCTRL_ARGB1555 (1 << 16) +#define S5P_CIOCTRL_ARGB4444 (2 << 16) +#define S5P_CIOCTRL_ORDER2P_SHIFT (24) +#define S5P_CIOCTRL_ORDER2P_MASK (3 << 24) +#define S5P_CIOCTRL_ORDER422_2P_LSB_CRCB (0 << 24) + +/* Pre-scaler control 1 */ +#define S5P_CISCPRERATIO 0x50 +#define S5P_CISCPRERATIO_SHFACTOR(x) ((x) << 28) +#define S5P_CISCPRERATIO_HOR(x) ((x) << 16) +#define S5P_CISCPRERATIO_VER(x) ((x) << 0) + +#define S5P_CISCPREDST 0x54 +#define S5P_CISCPREDST_WIDTH(x) ((x) << 16) +#define S5P_CISCPREDST_HEIGHT(x) ((x) << 0) + +/* Main scaler control */ +#define S5P_CISCCTRL 0x58 +#define S5P_CISCCTRL_SCALERBYPASS (1 << 31) +#define S5P_CISCCTRL_SCALEUP_H (1 << 30) +#define S5P_CISCCTRL_SCALEUP_V (1 << 29) +#define S5P_CISCCTRL_CSCR2Y_WIDE (1 << 28) +#define S5P_CISCCTRL_CSCY2R_WIDE (1 << 27) +#define S5P_CISCCTRL_LCDPATHEN_FIFO (1 << 26) +#define S5P_CISCCTRL_INTERLACE (1 << 25) +#define S5P_CISCCTRL_SCALERSTART (1 << 15) +#define S5P_CISCCTRL_INRGB_FMT_RGB565 (0 << 13) +#define S5P_CISCCTRL_INRGB_FMT_RGB666 (1 << 13) +#define S5P_CISCCTRL_INRGB_FMT_RGB888 (2 << 13) +#define S5P_CISCCTRL_INRGB_FMT_MASK (3 << 13) +#define S5P_CISCCTRL_OUTRGB_FMT_RGB565 (0 << 11) +#define S5P_CISCCTRL_OUTRGB_FMT_RGB666 (1 << 11) +#define S5P_CISCCTRL_OUTRGB_FMT_RGB888 (2 << 11) +#define S5P_CISCCTRL_OUTRGB_FMT_MASK (3 << 11) +#define S5P_CISCCTRL_RGB_EXT (1 << 10) +#define S5P_CISCCTRL_ONE2ONE (1 << 9) +#define S5P_CISCCTRL_MHRATIO(x) ((x) << 16) +#define S5P_CISCCTRL_MVRATIO(x) ((x) << 0) +#define S5P_CISCCTRL_MHRATIO_MASK (0x1ff << 16) +#define S5P_CISCCTRL_MVRATIO_MASK (0x1ff << 0) +#define S5P_CISCCTRL_MHRATIO_EXT(x) (((x) >> 6) << 16) +#define S5P_CISCCTRL_MVRATIO_EXT(x) (((x) >> 6) << 0) + +/* Target area */ +#define S5P_CITAREA 0x5c +#define S5P_CITAREA_MASK 0x0fffffff + +/* General status */ +#define S5P_CISTATUS 0x64 +#define S5P_CISTATUS_OVFIY (1 << 31) +#define S5P_CISTATUS_OVFICB (1 << 30) +#define S5P_CISTATUS_OVFICR (1 << 29) +#define S5P_CISTATUS_VSYNC (1 << 28) +#define S5P_CISTATUS_FRAMECNT_MASK (3 << 26) +#define S5P_CISTATUS_FRAMECNT_SHIFT 26 +#define S5P_CISTATUS_WINOFF_EN (1 << 25) +#define S5P_CISTATUS_IMGCPT_EN (1 << 22) +#define S5P_CISTATUS_IMGCPT_SCEN (1 << 21) +#define S5P_CISTATUS_VSYNC_A (1 << 20) +#define S5P_CISTATUS_VSYNC_B (1 << 19) +#define S5P_CISTATUS_OVRLB (1 << 18) +#define S5P_CISTATUS_FRAME_END (1 << 17) +#define S5P_CISTATUS_LASTCAPT_END (1 << 16) +#define S5P_CISTATUS_VVALID_A (1 << 15) +#define S5P_CISTATUS_VVALID_B (1 << 14) + +/* Indexes to the last and the currently processed buffer. */ +#define S5P_CISTATUS2 0x68 + +/* Image capture control */ +#define S5P_CIIMGCPT 0xc0 +#define S5P_CIIMGCPT_IMGCPTEN (1 << 31) +#define S5P_CIIMGCPT_IMGCPTEN_SC (1 << 30) +#define S5P_CIIMGCPT_CPT_FREN_ENABLE (1 << 25) +#define S5P_CIIMGCPT_CPT_FRMOD_CNT (1 << 18) + +/* Frame capture sequence */ +#define S5P_CICPTSEQ 0xc4 + +/* Image effect */ +#define S5P_CIIMGEFF 0xd0 +#define S5P_CIIMGEFF_IE_ENABLE (1 << 30) +#define S5P_CIIMGEFF_IE_SC_BEFORE (0 << 29) +#define S5P_CIIMGEFF_IE_SC_AFTER (1 << 29) +#define S5P_CIIMGEFF_FIN_BYPASS (0 << 26) +#define S5P_CIIMGEFF_FIN_ARBITRARY (1 << 26) +#define S5P_CIIMGEFF_FIN_NEGATIVE (2 << 26) +#define S5P_CIIMGEFF_FIN_ARTFREEZE (3 << 26) +#define S5P_CIIMGEFF_FIN_EMBOSSING (4 << 26) +#define S5P_CIIMGEFF_FIN_SILHOUETTE (5 << 26) +#define S5P_CIIMGEFF_FIN_MASK (7 << 26) +#define S5P_CIIMGEFF_PAT_CBCR_MASK ((0xff < 13) | (0xff < 0)) +#define S5P_CIIMGEFF_PAT_CB(x) ((x) << 13) +#define S5P_CIIMGEFF_PAT_CR(x) ((x) << 0) + +/* Input DMA Y/Cb/Cr plane start address 0/1 */ +#define S5P_CIIYSA(n) (0xd4 + (n) * 0x70) +#define S5P_CIICBSA(n) (0xd8 + (n) * 0x70) +#define S5P_CIICRSA(n) (0xdc + (n) * 0x70) + +/* Real input DMA image size */ +#define S5P_CIREAL_ISIZE 0xf8 +#define S5P_CIREAL_ISIZE_AUTOLOAD_EN (1 << 31) +#define S5P_CIREAL_ISIZE_ADDR_CH_DIS (1 << 30) +#define S5P_CIREAL_ISIZE_HEIGHT(x) ((x) << 16) +#define S5P_CIREAL_ISIZE_WIDTH(x) ((x) << 0) + + +/* Input DMA control */ +#define S5P_MSCTRL 0xfc +#define S5P_MSCTRL_IN_BURST_COUNT_MASK (0xF << 24) +#define S5P_MSCTRL_2P_IN_ORDER_MASK (3 << 16) +#define S5P_MSCTRL_2P_IN_ORDER_SHIFT 16 +#define S5P_MSCTRL_C_INT_IN_3PLANE (0 << 15) +#define S5P_MSCTRL_C_INT_IN_2PLANE (1 << 15) +#define S5P_MSCTRL_C_INT_IN_MASK (1 << 15) +#define S5P_MSCTRL_FLIP_SHIFT 13 +#define S5P_MSCTRL_FLIP_MASK (3 << 13) +#define S5P_MSCTRL_FLIP_NORMAL (0 << 13) +#define S5P_MSCTRL_FLIP_X_MIRROR (1 << 13) +#define S5P_MSCTRL_FLIP_Y_MIRROR (2 << 13) +#define S5P_MSCTRL_FLIP_180 (3 << 13) +#define S5P_MSCTRL_FIFO_CTRL_FULL (1 << 12) +#define S5P_MSCTRL_ORDER422_SHIFT 4 +#define S5P_MSCTRL_ORDER422_YCBYCR (0 << 4) +#define S5P_MSCTRL_ORDER422_CBYCRY (1 << 4) +#define S5P_MSCTRL_ORDER422_YCRYCB (2 << 4) +#define S5P_MSCTRL_ORDER422_CRYCBY (3 << 4) +#define S5P_MSCTRL_ORDER422_MASK (3 << 4) +#define S5P_MSCTRL_INPUT_EXTCAM (0 << 3) +#define S5P_MSCTRL_INPUT_MEMORY (1 << 3) +#define S5P_MSCTRL_INPUT_MASK (1 << 3) +#define S5P_MSCTRL_INFORMAT_YCBCR420 (0 << 1) +#define S5P_MSCTRL_INFORMAT_YCBCR422 (1 << 1) +#define S5P_MSCTRL_INFORMAT_YCBCR422_1P (2 << 1) +#define S5P_MSCTRL_INFORMAT_RGB (3 << 1) +#define S5P_MSCTRL_INFORMAT_MASK (3 << 1) +#define S5P_MSCTRL_ENVID (1 << 0) +#define S5P_MSCTRL_IN_BURST_COUNT(x) ((x) << 24) + +/* Output DMA Y/Cb/Cr offset */ +#define S5P_CIOYOFF 0x168 +#define S5P_CIOCBOFF 0x16c +#define S5P_CIOCROFF 0x170 + +/* Input DMA Y/Cb/Cr offset */ +#define S5P_CIIYOFF 0x174 +#define S5P_CIICBOFF 0x178 +#define S5P_CIICROFF 0x17c + +#define S5P_CIO_OFFS_VER(x) ((x) << 16) +#define S5P_CIO_OFFS_HOR(x) ((x) << 0) + +/* Input DMA original image size */ +#define S5P_ORGISIZE 0x180 + +/* Output DMA original image size */ +#define S5P_ORGOSIZE 0x184 + +#define S5P_ORIG_SIZE_VER(x) ((x) << 16) +#define S5P_ORIG_SIZE_HOR(x) ((x) << 0) + +/* Real output DMA image size (extension register) */ +#define S5P_CIEXTEN 0x188 +#define S5P_CIEXTEN_MHRATIO_EXT(x) (((x) & 0x3f) << 10) +#define S5P_CIEXTEN_MVRATIO_EXT(x) ((x) & 0x3f) +#define S5P_CIEXTEN_MHRATIO_EXT_MASK (0x3f << 10) +#define S5P_CIEXTEN_MVRATIO_EXT_MASK 0x3f + +#define S5P_CIDMAPARAM 0x18c +#define S5P_CIDMAPARAM_R_LINEAR (0 << 29) +#define S5P_CIDMAPARAM_R_64X32 (3 << 29) +#define S5P_CIDMAPARAM_W_LINEAR (0 << 13) +#define S5P_CIDMAPARAM_W_64X32 (3 << 13) +#define S5P_CIDMAPARAM_TILE_MASK ((3 << 29) | (3 << 13)) + +/* MIPI CSI image format */ +#define S5P_CSIIMGFMT 0x194 +#define S5P_CSIIMGFMT_YCBCR422_8BIT 0x1e +#define S5P_CSIIMGFMT_RAW8 0x2a +#define S5P_CSIIMGFMT_RAW10 0x2b +#define S5P_CSIIMGFMT_RAW12 0x2c +/* User defined formats. x = 0...16. */ +#define S5P_CSIIMGFMT_USER(x) (0x30 + x - 1) + +/* Output frame buffer sequence mask */ +#define S5P_CIFCNTSEQ 0x1FC + +#endif /* REGS_FIMC_H_ */ |