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authorSrikant Patnaik2015-01-11 12:28:04 +0530
committerSrikant Patnaik2015-01-11 12:28:04 +0530
commit871480933a1c28f8a9fed4c4d34d06c439a7a422 (patch)
tree8718f573808810c2a1e8cb8fb6ac469093ca2784 /ANDROID_3.4.5/drivers/video/omap/omapfb_main.c
parent9d40ac5867b9aefe0722bc1f110b965ff294d30d (diff)
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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 'ANDROID_3.4.5/drivers/video/omap/omapfb_main.c')
-rw-r--r--ANDROID_3.4.5/drivers/video/omap/omapfb_main.c1978
1 files changed, 0 insertions, 1978 deletions
diff --git a/ANDROID_3.4.5/drivers/video/omap/omapfb_main.c b/ANDROID_3.4.5/drivers/video/omap/omapfb_main.c
deleted file mode 100644
index f54b4637..00000000
--- a/ANDROID_3.4.5/drivers/video/omap/omapfb_main.c
+++ /dev/null
@@ -1,1978 +0,0 @@
-/*
- * Framebuffer driver for TI OMAP boards
- *
- * Copyright (C) 2004 Nokia Corporation
- * Author: Imre Deak <imre.deak@nokia.com>
- *
- * Acknowledgements:
- * Alex McMains <aam@ridgerun.com> - Original driver
- * Juha Yrjola <juha.yrjola@nokia.com> - Original driver and improvements
- * Dirk Behme <dirk.behme@de.bosch.com> - changes for 2.6 kernel API
- * Texas Instruments - H3 support
- *
- * 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.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
- */
-#include <linux/platform_device.h>
-#include <linux/mm.h>
-#include <linux/slab.h>
-#include <linux/uaccess.h>
-#include <linux/module.h>
-
-#include <plat/dma.h>
-
-#include "omapfb.h"
-#include "lcdc.h"
-
-#define MODULE_NAME "omapfb"
-
-static unsigned int def_accel;
-static unsigned long def_vram[OMAPFB_PLANE_NUM];
-static unsigned int def_vram_cnt;
-static unsigned long def_vxres;
-static unsigned long def_vyres;
-static unsigned int def_rotate;
-static unsigned int def_mirror;
-
-#ifdef CONFIG_FB_OMAP_MANUAL_UPDATE
-static bool manual_update = 1;
-#else
-static bool manual_update;
-#endif
-
-static struct platform_device *fbdev_pdev;
-static struct lcd_panel *fbdev_panel;
-static struct omapfb_device *omapfb_dev;
-
-struct caps_table_struct {
- unsigned long flag;
- const char *name;
-};
-
-static struct caps_table_struct ctrl_caps[] = {
- { OMAPFB_CAPS_MANUAL_UPDATE, "manual update" },
- { OMAPFB_CAPS_TEARSYNC, "tearing synchronization" },
- { OMAPFB_CAPS_PLANE_RELOCATE_MEM, "relocate plane memory" },
- { OMAPFB_CAPS_PLANE_SCALE, "scale plane" },
- { OMAPFB_CAPS_WINDOW_PIXEL_DOUBLE, "pixel double window" },
- { OMAPFB_CAPS_WINDOW_SCALE, "scale window" },
- { OMAPFB_CAPS_WINDOW_OVERLAY, "overlay window" },
- { OMAPFB_CAPS_WINDOW_ROTATE, "rotate window" },
- { OMAPFB_CAPS_SET_BACKLIGHT, "backlight setting" },
-};
-
-static struct caps_table_struct color_caps[] = {
- { 1 << OMAPFB_COLOR_RGB565, "RGB565", },
- { 1 << OMAPFB_COLOR_YUV422, "YUV422", },
- { 1 << OMAPFB_COLOR_YUV420, "YUV420", },
- { 1 << OMAPFB_COLOR_CLUT_8BPP, "CLUT8", },
- { 1 << OMAPFB_COLOR_CLUT_4BPP, "CLUT4", },
- { 1 << OMAPFB_COLOR_CLUT_2BPP, "CLUT2", },
- { 1 << OMAPFB_COLOR_CLUT_1BPP, "CLUT1", },
- { 1 << OMAPFB_COLOR_RGB444, "RGB444", },
- { 1 << OMAPFB_COLOR_YUY422, "YUY422", },
-};
-
-static void omapdss_release(struct device *dev)
-{
-}
-
-/* dummy device for clocks */
-static struct platform_device omapdss_device = {
- .name = "omapdss_dss",
- .id = -1,
- .dev = {
- .release = omapdss_release,
- },
-};
-
-/*
- * ---------------------------------------------------------------------------
- * LCD panel
- * ---------------------------------------------------------------------------
- */
-extern struct lcd_ctrl hwa742_ctrl;
-
-static const struct lcd_ctrl *ctrls[] = {
- &omap1_int_ctrl,
-
-#ifdef CONFIG_FB_OMAP_LCDC_HWA742
- &hwa742_ctrl,
-#endif
-};
-
-#ifdef CONFIG_FB_OMAP_LCDC_EXTERNAL
-extern struct lcd_ctrl_extif omap1_ext_if;
-#endif
-
-static void omapfb_rqueue_lock(struct omapfb_device *fbdev)
-{
- mutex_lock(&fbdev->rqueue_mutex);
-}
-
-static void omapfb_rqueue_unlock(struct omapfb_device *fbdev)
-{
- mutex_unlock(&fbdev->rqueue_mutex);
-}
-
-/*
- * ---------------------------------------------------------------------------
- * LCD controller and LCD DMA
- * ---------------------------------------------------------------------------
- */
-/* Lookup table to map elem size to elem type. */
-static const int dma_elem_type[] = {
- 0,
- OMAP_DMA_DATA_TYPE_S8,
- OMAP_DMA_DATA_TYPE_S16,
- 0,
- OMAP_DMA_DATA_TYPE_S32,
-};
-
-/*
- * Allocate resources needed for LCD controller and LCD DMA operations. Video
- * memory is allocated from system memory according to the virtual display
- * size, except if a bigger memory size is specified explicitly as a kernel
- * parameter.
- */
-static int ctrl_init(struct omapfb_device *fbdev)
-{
- int r;
- int i;
-
- /* kernel/module vram parameters override boot tags/board config */
- if (def_vram_cnt) {
- for (i = 0; i < def_vram_cnt; i++)
- fbdev->mem_desc.region[i].size =
- PAGE_ALIGN(def_vram[i]);
- fbdev->mem_desc.region_cnt = i;
- }
-
- if (!fbdev->mem_desc.region_cnt) {
- struct lcd_panel *panel = fbdev->panel;
- int def_size;
- int bpp = panel->bpp;
-
- /* 12 bpp is packed in 16 bits */
- if (bpp == 12)
- bpp = 16;
- def_size = def_vxres * def_vyres * bpp / 8;
- fbdev->mem_desc.region_cnt = 1;
- fbdev->mem_desc.region[0].size = PAGE_ALIGN(def_size);
- }
- r = fbdev->ctrl->init(fbdev, 0, &fbdev->mem_desc);
- if (r < 0) {
- dev_err(fbdev->dev, "controller initialization failed (%d)\n",
- r);
- return r;
- }
-
-#ifdef DEBUG
- for (i = 0; i < fbdev->mem_desc.region_cnt; i++) {
- dev_dbg(fbdev->dev, "region%d phys %08x virt %p size=%lu\n",
- i,
- fbdev->mem_desc.region[i].paddr,
- fbdev->mem_desc.region[i].vaddr,
- fbdev->mem_desc.region[i].size);
- }
-#endif
- return 0;
-}
-
-static void ctrl_cleanup(struct omapfb_device *fbdev)
-{
- fbdev->ctrl->cleanup();
-}
-
-/* Must be called with fbdev->rqueue_mutex held. */
-static int ctrl_change_mode(struct fb_info *fbi)
-{
- int r;
- unsigned long offset;
- struct omapfb_plane_struct *plane = fbi->par;
- struct omapfb_device *fbdev = plane->fbdev;
- struct fb_var_screeninfo *var = &fbi->var;
-
- offset = var->yoffset * fbi->fix.line_length +
- var->xoffset * var->bits_per_pixel / 8;
-
- if (fbdev->ctrl->sync)
- fbdev->ctrl->sync();
- r = fbdev->ctrl->setup_plane(plane->idx, plane->info.channel_out,
- offset, var->xres_virtual,
- plane->info.pos_x, plane->info.pos_y,
- var->xres, var->yres, plane->color_mode);
- if (r < 0)
- return r;
-
- if (fbdev->ctrl->set_rotate != NULL) {
- r = fbdev->ctrl->set_rotate(var->rotate);
- if (r < 0)
- return r;
- }
-
- if (fbdev->ctrl->set_scale != NULL)
- r = fbdev->ctrl->set_scale(plane->idx,
- var->xres, var->yres,
- plane->info.out_width,
- plane->info.out_height);
-
- return r;
-}
-
-/*
- * ---------------------------------------------------------------------------
- * fbdev framework callbacks and the ioctl interface
- * ---------------------------------------------------------------------------
- */
-/* Called each time the omapfb device is opened */
-static int omapfb_open(struct fb_info *info, int user)
-{
- return 0;
-}
-
-static void omapfb_sync(struct fb_info *info);
-
-/* Called when the omapfb device is closed. We make sure that any pending
- * gfx DMA operations are ended, before we return. */
-static int omapfb_release(struct fb_info *info, int user)
-{
- omapfb_sync(info);
- return 0;
-}
-
-/* Store a single color palette entry into a pseudo palette or the hardware
- * palette if one is available. For now we support only 16bpp and thus store
- * the entry only to the pseudo palette.
- */
-static int _setcolreg(struct fb_info *info, u_int regno, u_int red, u_int green,
- u_int blue, u_int transp, int update_hw_pal)
-{
- struct omapfb_plane_struct *plane = info->par;
- struct omapfb_device *fbdev = plane->fbdev;
- struct fb_var_screeninfo *var = &info->var;
- int r = 0;
-
- switch (plane->color_mode) {
- case OMAPFB_COLOR_YUV422:
- case OMAPFB_COLOR_YUV420:
- case OMAPFB_COLOR_YUY422:
- r = -EINVAL;
- break;
- case OMAPFB_COLOR_CLUT_8BPP:
- case OMAPFB_COLOR_CLUT_4BPP:
- case OMAPFB_COLOR_CLUT_2BPP:
- case OMAPFB_COLOR_CLUT_1BPP:
- if (fbdev->ctrl->setcolreg)
- r = fbdev->ctrl->setcolreg(regno, red, green, blue,
- transp, update_hw_pal);
- /* Fallthrough */
- case OMAPFB_COLOR_RGB565:
- case OMAPFB_COLOR_RGB444:
- if (r != 0)
- break;
-
- if (regno < 0) {
- r = -EINVAL;
- break;
- }
-
- if (regno < 16) {
- u16 pal;
- pal = ((red >> (16 - var->red.length)) <<
- var->red.offset) |
- ((green >> (16 - var->green.length)) <<
- var->green.offset) |
- (blue >> (16 - var->blue.length));
- ((u32 *)(info->pseudo_palette))[regno] = pal;
- }
- break;
- default:
- BUG();
- }
- return r;
-}
-
-static int omapfb_setcolreg(u_int regno, u_int red, u_int green, u_int blue,
- u_int transp, struct fb_info *info)
-{
- return _setcolreg(info, regno, red, green, blue, transp, 1);
-}
-
-static int omapfb_setcmap(struct fb_cmap *cmap, struct fb_info *info)
-{
- int count, index, r;
- u16 *red, *green, *blue, *transp;
- u16 trans = 0xffff;
-
- red = cmap->red;
- green = cmap->green;
- blue = cmap->blue;
- transp = cmap->transp;
- index = cmap->start;
-
- for (count = 0; count < cmap->len; count++) {
- if (transp)
- trans = *transp++;
- r = _setcolreg(info, index++, *red++, *green++, *blue++, trans,
- count == cmap->len - 1);
- if (r != 0)
- return r;
- }
-
- return 0;
-}
-
-static int omapfb_update_full_screen(struct fb_info *fbi);
-
-static int omapfb_blank(int blank, struct fb_info *fbi)
-{
- struct omapfb_plane_struct *plane = fbi->par;
- struct omapfb_device *fbdev = plane->fbdev;
- int do_update = 0;
- int r = 0;
-
- omapfb_rqueue_lock(fbdev);
- switch (blank) {
- case FB_BLANK_UNBLANK:
- if (fbdev->state == OMAPFB_SUSPENDED) {
- if (fbdev->ctrl->resume)
- fbdev->ctrl->resume();
- fbdev->panel->enable(fbdev->panel);
- fbdev->state = OMAPFB_ACTIVE;
- if (fbdev->ctrl->get_update_mode() ==
- OMAPFB_MANUAL_UPDATE)
- do_update = 1;
- }
- break;
- case FB_BLANK_POWERDOWN:
- if (fbdev->state == OMAPFB_ACTIVE) {
- fbdev->panel->disable(fbdev->panel);
- if (fbdev->ctrl->suspend)
- fbdev->ctrl->suspend();
- fbdev->state = OMAPFB_SUSPENDED;
- }
- break;
- default:
- r = -EINVAL;
- }
- omapfb_rqueue_unlock(fbdev);
-
- if (r == 0 && do_update)
- r = omapfb_update_full_screen(fbi);
-
- return r;
-}
-
-static void omapfb_sync(struct fb_info *fbi)
-{
- struct omapfb_plane_struct *plane = fbi->par;
- struct omapfb_device *fbdev = plane->fbdev;
-
- omapfb_rqueue_lock(fbdev);
- if (fbdev->ctrl->sync)
- fbdev->ctrl->sync();
- omapfb_rqueue_unlock(fbdev);
-}
-
-/*
- * Set fb_info.fix fields and also updates fbdev.
- * When calling this fb_info.var must be set up already.
- */
-static void set_fb_fix(struct fb_info *fbi, int from_init)
-{
- struct fb_fix_screeninfo *fix = &fbi->fix;
- struct fb_var_screeninfo *var = &fbi->var;
- struct omapfb_plane_struct *plane = fbi->par;
- struct omapfb_mem_region *rg;
- int bpp;
-
- rg = &plane->fbdev->mem_desc.region[plane->idx];
- fbi->screen_base = rg->vaddr;
-
- if (!from_init) {
- mutex_lock(&fbi->mm_lock);
- fix->smem_start = rg->paddr;
- fix->smem_len = rg->size;
- mutex_unlock(&fbi->mm_lock);
- } else {
- fix->smem_start = rg->paddr;
- fix->smem_len = rg->size;
- }
-
- fix->type = FB_TYPE_PACKED_PIXELS;
- bpp = var->bits_per_pixel;
- if (var->nonstd)
- fix->visual = FB_VISUAL_PSEUDOCOLOR;
- else switch (var->bits_per_pixel) {
- case 16:
- case 12:
- fix->visual = FB_VISUAL_TRUECOLOR;
- /* 12bpp is stored in 16 bits */
- bpp = 16;
- break;
- case 1:
- case 2:
- case 4:
- case 8:
- fix->visual = FB_VISUAL_PSEUDOCOLOR;
- break;
- }
- fix->accel = FB_ACCEL_OMAP1610;
- fix->line_length = var->xres_virtual * bpp / 8;
-}
-
-static int set_color_mode(struct omapfb_plane_struct *plane,
- struct fb_var_screeninfo *var)
-{
- switch (var->nonstd) {
- case 0:
- break;
- case OMAPFB_COLOR_YUV422:
- var->bits_per_pixel = 16;
- plane->color_mode = var->nonstd;
- return 0;
- case OMAPFB_COLOR_YUV420:
- var->bits_per_pixel = 12;
- plane->color_mode = var->nonstd;
- return 0;
- case OMAPFB_COLOR_YUY422:
- var->bits_per_pixel = 16;
- plane->color_mode = var->nonstd;
- return 0;
- default:
- return -EINVAL;
- }
-
- switch (var->bits_per_pixel) {
- case 1:
- plane->color_mode = OMAPFB_COLOR_CLUT_1BPP;
- return 0;
- case 2:
- plane->color_mode = OMAPFB_COLOR_CLUT_2BPP;
- return 0;
- case 4:
- plane->color_mode = OMAPFB_COLOR_CLUT_4BPP;
- return 0;
- case 8:
- plane->color_mode = OMAPFB_COLOR_CLUT_8BPP;
- return 0;
- case 12:
- var->bits_per_pixel = 16;
- case 16:
- if (plane->fbdev->panel->bpp == 12)
- plane->color_mode = OMAPFB_COLOR_RGB444;
- else
- plane->color_mode = OMAPFB_COLOR_RGB565;
- return 0;
- default:
- return -EINVAL;
- }
-}
-
-/*
- * Check the values in var against our capabilities and in case of out of
- * bound values try to adjust them.
- */
-static int set_fb_var(struct fb_info *fbi,
- struct fb_var_screeninfo *var)
-{
- int bpp;
- unsigned long max_frame_size;
- unsigned long line_size;
- int xres_min, xres_max;
- int yres_min, yres_max;
- struct omapfb_plane_struct *plane = fbi->par;
- struct omapfb_device *fbdev = plane->fbdev;
- struct lcd_panel *panel = fbdev->panel;
-
- if (set_color_mode(plane, var) < 0)
- return -EINVAL;
-
- bpp = var->bits_per_pixel;
- if (plane->color_mode == OMAPFB_COLOR_RGB444)
- bpp = 16;
-
- switch (var->rotate) {
- case 0:
- case 180:
- xres_min = OMAPFB_PLANE_XRES_MIN;
- xres_max = panel->x_res;
- yres_min = OMAPFB_PLANE_YRES_MIN;
- yres_max = panel->y_res;
- if (cpu_is_omap15xx()) {
- var->xres = panel->x_res;
- var->yres = panel->y_res;
- }
- break;
- case 90:
- case 270:
- xres_min = OMAPFB_PLANE_YRES_MIN;
- xres_max = panel->y_res;
- yres_min = OMAPFB_PLANE_XRES_MIN;
- yres_max = panel->x_res;
- if (cpu_is_omap15xx()) {
- var->xres = panel->y_res;
- var->yres = panel->x_res;
- }
- break;
- default:
- return -EINVAL;
- }
-
- if (var->xres < xres_min)
- var->xres = xres_min;
- if (var->yres < yres_min)
- var->yres = yres_min;
- if (var->xres > xres_max)
- var->xres = xres_max;
- if (var->yres > yres_max)
- var->yres = yres_max;
-
- if (var->xres_virtual < var->xres)
- var->xres_virtual = var->xres;
- if (var->yres_virtual < var->yres)
- var->yres_virtual = var->yres;
- max_frame_size = fbdev->mem_desc.region[plane->idx].size;
- line_size = var->xres_virtual * bpp / 8;
- if (line_size * var->yres_virtual > max_frame_size) {
- /* Try to keep yres_virtual first */
- line_size = max_frame_size / var->yres_virtual;
- var->xres_virtual = line_size * 8 / bpp;
- if (var->xres_virtual < var->xres) {
- /* Still doesn't fit. Shrink yres_virtual too */
- var->xres_virtual = var->xres;
- line_size = var->xres * bpp / 8;
- var->yres_virtual = max_frame_size / line_size;
- }
- /* Recheck this, as the virtual size changed. */
- if (var->xres_virtual < var->xres)
- var->xres = var->xres_virtual;
- if (var->yres_virtual < var->yres)
- var->yres = var->yres_virtual;
- if (var->xres < xres_min || var->yres < yres_min)
- return -EINVAL;
- }
- if (var->xres + var->xoffset > var->xres_virtual)
- var->xoffset = var->xres_virtual - var->xres;
- if (var->yres + var->yoffset > var->yres_virtual)
- var->yoffset = var->yres_virtual - var->yres;
-
- if (plane->color_mode == OMAPFB_COLOR_RGB444) {
- var->red.offset = 8; var->red.length = 4;
- var->red.msb_right = 0;
- var->green.offset = 4; var->green.length = 4;
- var->green.msb_right = 0;
- var->blue.offset = 0; var->blue.length = 4;
- var->blue.msb_right = 0;
- } else {
- var->red.offset = 11; var->red.length = 5;
- var->red.msb_right = 0;
- var->green.offset = 5; var->green.length = 6;
- var->green.msb_right = 0;
- var->blue.offset = 0; var->blue.length = 5;
- var->blue.msb_right = 0;
- }
-
- var->height = -1;
- var->width = -1;
- var->grayscale = 0;
-
- /* pixclock in ps, the rest in pixclock */
- var->pixclock = 10000000 / (panel->pixel_clock / 100);
- var->left_margin = panel->hfp;
- var->right_margin = panel->hbp;
- var->upper_margin = panel->vfp;
- var->lower_margin = panel->vbp;
- var->hsync_len = panel->hsw;
- var->vsync_len = panel->vsw;
-
- /* TODO: get these from panel->config */
- var->vmode = FB_VMODE_NONINTERLACED;
- var->sync = 0;
-
- return 0;
-}
-
-
-/* Set rotation (0, 90, 180, 270 degree), and switch to the new mode. */
-static void omapfb_rotate(struct fb_info *fbi, int rotate)
-{
- struct omapfb_plane_struct *plane = fbi->par;
- struct omapfb_device *fbdev = plane->fbdev;
-
- omapfb_rqueue_lock(fbdev);
- if (rotate != fbi->var.rotate) {
- struct fb_var_screeninfo *new_var = &fbdev->new_var;
-
- memcpy(new_var, &fbi->var, sizeof(*new_var));
- new_var->rotate = rotate;
- if (set_fb_var(fbi, new_var) == 0 &&
- memcmp(new_var, &fbi->var, sizeof(*new_var))) {
- memcpy(&fbi->var, new_var, sizeof(*new_var));
- ctrl_change_mode(fbi);
- }
- }
- omapfb_rqueue_unlock(fbdev);
-}
-
-/*
- * Set new x,y offsets in the virtual display for the visible area and switch
- * to the new mode.
- */
-static int omapfb_pan_display(struct fb_var_screeninfo *var,
- struct fb_info *fbi)
-{
- struct omapfb_plane_struct *plane = fbi->par;
- struct omapfb_device *fbdev = plane->fbdev;
- int r = 0;
-
- omapfb_rqueue_lock(fbdev);
- if (var->xoffset != fbi->var.xoffset ||
- var->yoffset != fbi->var.yoffset) {
- struct fb_var_screeninfo *new_var = &fbdev->new_var;
-
- memcpy(new_var, &fbi->var, sizeof(*new_var));
- new_var->xoffset = var->xoffset;
- new_var->yoffset = var->yoffset;
- if (set_fb_var(fbi, new_var))
- r = -EINVAL;
- else {
- memcpy(&fbi->var, new_var, sizeof(*new_var));
- ctrl_change_mode(fbi);
- }
- }
- omapfb_rqueue_unlock(fbdev);
-
- return r;
-}
-
-/* Set mirror to vertical axis and switch to the new mode. */
-static int omapfb_mirror(struct fb_info *fbi, int mirror)
-{
- struct omapfb_plane_struct *plane = fbi->par;
- struct omapfb_device *fbdev = plane->fbdev;
- int r = 0;
-
- omapfb_rqueue_lock(fbdev);
- mirror = mirror ? 1 : 0;
- if (cpu_is_omap15xx())
- r = -EINVAL;
- else if (mirror != plane->info.mirror) {
- plane->info.mirror = mirror;
- r = ctrl_change_mode(fbi);
- }
- omapfb_rqueue_unlock(fbdev);
-
- return r;
-}
-
-/*
- * Check values in var, try to adjust them in case of out of bound values if
- * possible, or return error.
- */
-static int omapfb_check_var(struct fb_var_screeninfo *var, struct fb_info *fbi)
-{
- struct omapfb_plane_struct *plane = fbi->par;
- struct omapfb_device *fbdev = plane->fbdev;
- int r;
-
- omapfb_rqueue_lock(fbdev);
- if (fbdev->ctrl->sync != NULL)
- fbdev->ctrl->sync();
- r = set_fb_var(fbi, var);
- omapfb_rqueue_unlock(fbdev);
-
- return r;
-}
-
-/*
- * Switch to a new mode. The parameters for it has been check already by
- * omapfb_check_var.
- */
-static int omapfb_set_par(struct fb_info *fbi)
-{
- struct omapfb_plane_struct *plane = fbi->par;
- struct omapfb_device *fbdev = plane->fbdev;
- int r = 0;
-
- omapfb_rqueue_lock(fbdev);
- set_fb_fix(fbi, 0);
- r = ctrl_change_mode(fbi);
- omapfb_rqueue_unlock(fbdev);
-
- return r;
-}
-
-int omapfb_update_window_async(struct fb_info *fbi,
- struct omapfb_update_window *win,
- void (*callback)(void *),
- void *callback_data)
-{
- int xres, yres;
- struct omapfb_plane_struct *plane = fbi->par;
- struct omapfb_device *fbdev = plane->fbdev;
- struct fb_var_screeninfo *var = &fbi->var;
-
- switch (var->rotate) {
- case 0:
- case 180:
- xres = fbdev->panel->x_res;
- yres = fbdev->panel->y_res;
- break;
- case 90:
- case 270:
- xres = fbdev->panel->y_res;
- yres = fbdev->panel->x_res;
- break;
- default:
- return -EINVAL;
- }
-
- if (win->x >= xres || win->y >= yres ||
- win->out_x > xres || win->out_y > yres)
- return -EINVAL;
-
- if (!fbdev->ctrl->update_window ||
- fbdev->ctrl->get_update_mode() != OMAPFB_MANUAL_UPDATE)
- return -ENODEV;
-
- if (win->x + win->width > xres)
- win->width = xres - win->x;
- if (win->y + win->height > yres)
- win->height = yres - win->y;
- if (win->out_x + win->out_width > xres)
- win->out_width = xres - win->out_x;
- if (win->out_y + win->out_height > yres)
- win->out_height = yres - win->out_y;
- if (!win->width || !win->height || !win->out_width || !win->out_height)
- return 0;
-
- return fbdev->ctrl->update_window(fbi, win, callback, callback_data);
-}
-EXPORT_SYMBOL(omapfb_update_window_async);
-
-static int omapfb_update_win(struct fb_info *fbi,
- struct omapfb_update_window *win)
-{
- struct omapfb_plane_struct *plane = fbi->par;
- int ret;
-
- omapfb_rqueue_lock(plane->fbdev);
- ret = omapfb_update_window_async(fbi, win, NULL, NULL);
- omapfb_rqueue_unlock(plane->fbdev);
-
- return ret;
-}
-
-static int omapfb_update_full_screen(struct fb_info *fbi)
-{
- struct omapfb_plane_struct *plane = fbi->par;
- struct omapfb_device *fbdev = plane->fbdev;
- struct omapfb_update_window win;
- int r;
-
- if (!fbdev->ctrl->update_window ||
- fbdev->ctrl->get_update_mode() != OMAPFB_MANUAL_UPDATE)
- return -ENODEV;
-
- win.x = 0;
- win.y = 0;
- win.width = fbi->var.xres;
- win.height = fbi->var.yres;
- win.out_x = 0;
- win.out_y = 0;
- win.out_width = fbi->var.xres;
- win.out_height = fbi->var.yres;
- win.format = 0;
-
- omapfb_rqueue_lock(fbdev);
- r = fbdev->ctrl->update_window(fbi, &win, NULL, NULL);
- omapfb_rqueue_unlock(fbdev);
-
- return r;
-}
-
-static int omapfb_setup_plane(struct fb_info *fbi, struct omapfb_plane_info *pi)
-{
- struct omapfb_plane_struct *plane = fbi->par;
- struct omapfb_device *fbdev = plane->fbdev;
- struct lcd_panel *panel = fbdev->panel;
- struct omapfb_plane_info old_info;
- int r = 0;
-
- if (pi->pos_x + pi->out_width > panel->x_res ||
- pi->pos_y + pi->out_height > panel->y_res)
- return -EINVAL;
-
- omapfb_rqueue_lock(fbdev);
- if (pi->enabled && !fbdev->mem_desc.region[plane->idx].size) {
- /*
- * This plane's memory was freed, can't enable it
- * until it's reallocated.
- */
- r = -EINVAL;
- goto out;
- }
- old_info = plane->info;
- plane->info = *pi;
- if (pi->enabled) {
- r = ctrl_change_mode(fbi);
- if (r < 0) {
- plane->info = old_info;
- goto out;
- }
- }
- r = fbdev->ctrl->enable_plane(plane->idx, pi->enabled);
- if (r < 0) {
- plane->info = old_info;
- goto out;
- }
-out:
- omapfb_rqueue_unlock(fbdev);
- return r;
-}
-
-static int omapfb_query_plane(struct fb_info *fbi, struct omapfb_plane_info *pi)
-{
- struct omapfb_plane_struct *plane = fbi->par;
-
- *pi = plane->info;
- return 0;
-}
-
-static int omapfb_setup_mem(struct fb_info *fbi, struct omapfb_mem_info *mi)
-{
- struct omapfb_plane_struct *plane = fbi->par;
- struct omapfb_device *fbdev = plane->fbdev;
- struct omapfb_mem_region *rg = &fbdev->mem_desc.region[plane->idx];
- size_t size;
- int r = 0;
-
- if (fbdev->ctrl->setup_mem == NULL)
- return -ENODEV;
- if (mi->type != OMAPFB_MEMTYPE_SDRAM)
- return -EINVAL;
-
- size = PAGE_ALIGN(mi->size);
- omapfb_rqueue_lock(fbdev);
- if (plane->info.enabled) {
- r = -EBUSY;
- goto out;
- }
- if (rg->size != size || rg->type != mi->type) {
- struct fb_var_screeninfo *new_var = &fbdev->new_var;
- unsigned long old_size = rg->size;
- u8 old_type = rg->type;
- unsigned long paddr;
-
- rg->size = size;
- rg->type = mi->type;
- /*
- * size == 0 is a special case, for which we
- * don't check / adjust the screen parameters.
- * This isn't a problem since the plane can't
- * be reenabled unless its size is > 0.
- */
- if (old_size != size && size) {
- if (size) {
- memcpy(new_var, &fbi->var, sizeof(*new_var));
- r = set_fb_var(fbi, new_var);
- if (r < 0)
- goto out;
- }
- }
-
- if (fbdev->ctrl->sync)
- fbdev->ctrl->sync();
- r = fbdev->ctrl->setup_mem(plane->idx, size, mi->type, &paddr);
- if (r < 0) {
- /* Revert changes. */
- rg->size = old_size;
- rg->type = old_type;
- goto out;
- }
- rg->paddr = paddr;
-
- if (old_size != size) {
- if (size) {
- memcpy(&fbi->var, new_var, sizeof(fbi->var));
- set_fb_fix(fbi, 0);
- } else {
- /*
- * Set these explicitly to indicate that the
- * plane memory is dealloce'd, the other
- * screen parameters in var / fix are invalid.
- */
- mutex_lock(&fbi->mm_lock);
- fbi->fix.smem_start = 0;
- fbi->fix.smem_len = 0;
- mutex_unlock(&fbi->mm_lock);
- }
- }
- }
-out:
- omapfb_rqueue_unlock(fbdev);
-
- return r;
-}
-
-static int omapfb_query_mem(struct fb_info *fbi, struct omapfb_mem_info *mi)
-{
- struct omapfb_plane_struct *plane = fbi->par;
- struct omapfb_device *fbdev = plane->fbdev;
- struct omapfb_mem_region *rg;
-
- rg = &fbdev->mem_desc.region[plane->idx];
- memset(mi, 0, sizeof(*mi));
- mi->size = rg->size;
- mi->type = rg->type;
-
- return 0;
-}
-
-static int omapfb_set_color_key(struct omapfb_device *fbdev,
- struct omapfb_color_key *ck)
-{
- int r;
-
- if (!fbdev->ctrl->set_color_key)
- return -ENODEV;
-
- omapfb_rqueue_lock(fbdev);
- r = fbdev->ctrl->set_color_key(ck);
- omapfb_rqueue_unlock(fbdev);
-
- return r;
-}
-
-static int omapfb_get_color_key(struct omapfb_device *fbdev,
- struct omapfb_color_key *ck)
-{
- int r;
-
- if (!fbdev->ctrl->get_color_key)
- return -ENODEV;
-
- omapfb_rqueue_lock(fbdev);
- r = fbdev->ctrl->get_color_key(ck);
- omapfb_rqueue_unlock(fbdev);
-
- return r;
-}
-
-static struct blocking_notifier_head omapfb_client_list[OMAPFB_PLANE_NUM];
-static int notifier_inited;
-
-static void omapfb_init_notifier(void)
-{
- int i;
-
- for (i = 0; i < OMAPFB_PLANE_NUM; i++)
- BLOCKING_INIT_NOTIFIER_HEAD(&omapfb_client_list[i]);
-}
-
-int omapfb_register_client(struct omapfb_notifier_block *omapfb_nb,
- omapfb_notifier_callback_t callback,
- void *callback_data)
-{
- int r;
-
- if ((unsigned)omapfb_nb->plane_idx > OMAPFB_PLANE_NUM)
- return -EINVAL;
-
- if (!notifier_inited) {
- omapfb_init_notifier();
- notifier_inited = 1;
- }
-
- omapfb_nb->nb.notifier_call = (int (*)(struct notifier_block *,
- unsigned long, void *))callback;
- omapfb_nb->data = callback_data;
- r = blocking_notifier_chain_register(
- &omapfb_client_list[omapfb_nb->plane_idx],
- &omapfb_nb->nb);
- if (r)
- return r;
- if (omapfb_dev != NULL &&
- omapfb_dev->ctrl && omapfb_dev->ctrl->bind_client) {
- omapfb_dev->ctrl->bind_client(omapfb_nb);
- }
-
- return 0;
-}
-EXPORT_SYMBOL(omapfb_register_client);
-
-int omapfb_unregister_client(struct omapfb_notifier_block *omapfb_nb)
-{
- return blocking_notifier_chain_unregister(
- &omapfb_client_list[omapfb_nb->plane_idx], &omapfb_nb->nb);
-}
-EXPORT_SYMBOL(omapfb_unregister_client);
-
-void omapfb_notify_clients(struct omapfb_device *fbdev, unsigned long event)
-{
- int i;
-
- if (!notifier_inited)
- /* no client registered yet */
- return;
-
- for (i = 0; i < OMAPFB_PLANE_NUM; i++)
- blocking_notifier_call_chain(&omapfb_client_list[i], event,
- fbdev->fb_info[i]);
-}
-EXPORT_SYMBOL(omapfb_notify_clients);
-
-static int omapfb_set_update_mode(struct omapfb_device *fbdev,
- enum omapfb_update_mode mode)
-{
- int r;
-
- omapfb_rqueue_lock(fbdev);
- r = fbdev->ctrl->set_update_mode(mode);
- omapfb_rqueue_unlock(fbdev);
-
- return r;
-}
-
-static enum omapfb_update_mode omapfb_get_update_mode(struct omapfb_device *fbdev)
-{
- int r;
-
- omapfb_rqueue_lock(fbdev);
- r = fbdev->ctrl->get_update_mode();
- omapfb_rqueue_unlock(fbdev);
-
- return r;
-}
-
-static void omapfb_get_caps(struct omapfb_device *fbdev, int plane,
- struct omapfb_caps *caps)
-{
- memset(caps, 0, sizeof(*caps));
- fbdev->ctrl->get_caps(plane, caps);
- caps->ctrl |= fbdev->panel->get_caps(fbdev->panel);
-}
-
-/* For lcd testing */
-void omapfb_write_first_pixel(struct omapfb_device *fbdev, u16 pixval)
-{
- omapfb_rqueue_lock(fbdev);
- *(u16 *)fbdev->mem_desc.region[0].vaddr = pixval;
- if (fbdev->ctrl->get_update_mode() == OMAPFB_MANUAL_UPDATE) {
- struct omapfb_update_window win;
-
- memset(&win, 0, sizeof(win));
- win.width = 2;
- win.height = 2;
- win.out_width = 2;
- win.out_height = 2;
- fbdev->ctrl->update_window(fbdev->fb_info[0], &win, NULL, NULL);
- }
- omapfb_rqueue_unlock(fbdev);
-}
-EXPORT_SYMBOL(omapfb_write_first_pixel);
-
-/*
- * Ioctl interface. Part of the kernel mode frame buffer API is duplicated
- * here to be accessible by user mode code.
- */
-static int omapfb_ioctl(struct fb_info *fbi, unsigned int cmd,
- unsigned long arg)
-{
- struct omapfb_plane_struct *plane = fbi->par;
- struct omapfb_device *fbdev = plane->fbdev;
- struct fb_ops *ops = fbi->fbops;
- union {
- struct omapfb_update_window update_window;
- struct omapfb_plane_info plane_info;
- struct omapfb_mem_info mem_info;
- struct omapfb_color_key color_key;
- enum omapfb_update_mode update_mode;
- struct omapfb_caps caps;
- unsigned int mirror;
- int plane_out;
- int enable_plane;
- } p;
- int r = 0;
-
- BUG_ON(!ops);
- switch (cmd) {
- case OMAPFB_MIRROR:
- if (get_user(p.mirror, (int __user *)arg))
- r = -EFAULT;
- else
- omapfb_mirror(fbi, p.mirror);
- break;
- case OMAPFB_SYNC_GFX:
- omapfb_sync(fbi);
- break;
- case OMAPFB_VSYNC:
- break;
- case OMAPFB_SET_UPDATE_MODE:
- if (get_user(p.update_mode, (int __user *)arg))
- r = -EFAULT;
- else
- r = omapfb_set_update_mode(fbdev, p.update_mode);
- break;
- case OMAPFB_GET_UPDATE_MODE:
- p.update_mode = omapfb_get_update_mode(fbdev);
- if (put_user(p.update_mode,
- (enum omapfb_update_mode __user *)arg))
- r = -EFAULT;
- break;
- case OMAPFB_UPDATE_WINDOW_OLD:
- if (copy_from_user(&p.update_window, (void __user *)arg,
- sizeof(struct omapfb_update_window_old)))
- r = -EFAULT;
- else {
- struct omapfb_update_window *u = &p.update_window;
- u->out_x = u->x;
- u->out_y = u->y;
- u->out_width = u->width;
- u->out_height = u->height;
- memset(u->reserved, 0, sizeof(u->reserved));
- r = omapfb_update_win(fbi, u);
- }
- break;
- case OMAPFB_UPDATE_WINDOW:
- if (copy_from_user(&p.update_window, (void __user *)arg,
- sizeof(p.update_window)))
- r = -EFAULT;
- else
- r = omapfb_update_win(fbi, &p.update_window);
- break;
- case OMAPFB_SETUP_PLANE:
- if (copy_from_user(&p.plane_info, (void __user *)arg,
- sizeof(p.plane_info)))
- r = -EFAULT;
- else
- r = omapfb_setup_plane(fbi, &p.plane_info);
- break;
- case OMAPFB_QUERY_PLANE:
- if ((r = omapfb_query_plane(fbi, &p.plane_info)) < 0)
- break;
- if (copy_to_user((void __user *)arg, &p.plane_info,
- sizeof(p.plane_info)))
- r = -EFAULT;
- break;
- case OMAPFB_SETUP_MEM:
- if (copy_from_user(&p.mem_info, (void __user *)arg,
- sizeof(p.mem_info)))
- r = -EFAULT;
- else
- r = omapfb_setup_mem(fbi, &p.mem_info);
- break;
- case OMAPFB_QUERY_MEM:
- if ((r = omapfb_query_mem(fbi, &p.mem_info)) < 0)
- break;
- if (copy_to_user((void __user *)arg, &p.mem_info,
- sizeof(p.mem_info)))
- r = -EFAULT;
- break;
- case OMAPFB_SET_COLOR_KEY:
- if (copy_from_user(&p.color_key, (void __user *)arg,
- sizeof(p.color_key)))
- r = -EFAULT;
- else
- r = omapfb_set_color_key(fbdev, &p.color_key);
- break;
- case OMAPFB_GET_COLOR_KEY:
- if ((r = omapfb_get_color_key(fbdev, &p.color_key)) < 0)
- break;
- if (copy_to_user((void __user *)arg, &p.color_key,
- sizeof(p.color_key)))
- r = -EFAULT;
- break;
- case OMAPFB_GET_CAPS:
- omapfb_get_caps(fbdev, plane->idx, &p.caps);
- if (copy_to_user((void __user *)arg, &p.caps, sizeof(p.caps)))
- r = -EFAULT;
- break;
- case OMAPFB_LCD_TEST:
- {
- int test_num;
-
- if (get_user(test_num, (int __user *)arg)) {
- r = -EFAULT;
- break;
- }
- if (!fbdev->panel->run_test) {
- r = -EINVAL;
- break;
- }
- r = fbdev->panel->run_test(fbdev->panel, test_num);
- break;
- }
- case OMAPFB_CTRL_TEST:
- {
- int test_num;
-
- if (get_user(test_num, (int __user *)arg)) {
- r = -EFAULT;
- break;
- }
- if (!fbdev->ctrl->run_test) {
- r = -EINVAL;
- break;
- }
- r = fbdev->ctrl->run_test(test_num);
- break;
- }
- default:
- r = -EINVAL;
- }
-
- return r;
-}
-
-static int omapfb_mmap(struct fb_info *info, struct vm_area_struct *vma)
-{
- struct omapfb_plane_struct *plane = info->par;
- struct omapfb_device *fbdev = plane->fbdev;
- int r;
-
- omapfb_rqueue_lock(fbdev);
- r = fbdev->ctrl->mmap(info, vma);
- omapfb_rqueue_unlock(fbdev);
-
- return r;
-}
-
-/*
- * Callback table for the frame buffer framework. Some of these pointers
- * will be changed according to the current setting of fb_info->accel_flags.
- */
-static struct fb_ops omapfb_ops = {
- .owner = THIS_MODULE,
- .fb_open = omapfb_open,
- .fb_release = omapfb_release,
- .fb_setcolreg = omapfb_setcolreg,
- .fb_setcmap = omapfb_setcmap,
- .fb_fillrect = cfb_fillrect,
- .fb_copyarea = cfb_copyarea,
- .fb_imageblit = cfb_imageblit,
- .fb_blank = omapfb_blank,
- .fb_ioctl = omapfb_ioctl,
- .fb_check_var = omapfb_check_var,
- .fb_set_par = omapfb_set_par,
- .fb_rotate = omapfb_rotate,
- .fb_pan_display = omapfb_pan_display,
-};
-
-/*
- * ---------------------------------------------------------------------------
- * Sysfs interface
- * ---------------------------------------------------------------------------
- */
-/* omapfbX sysfs entries */
-static ssize_t omapfb_show_caps_num(struct device *dev,
- struct device_attribute *attr, char *buf)
-{
- struct omapfb_device *fbdev = dev_get_drvdata(dev);
- int plane;
- size_t size;
- struct omapfb_caps caps;
-
- plane = 0;
- size = 0;
- while (size < PAGE_SIZE && plane < OMAPFB_PLANE_NUM) {
- omapfb_get_caps(fbdev, plane, &caps);
- size += snprintf(&buf[size], PAGE_SIZE - size,
- "plane#%d %#010x %#010x %#010x\n",
- plane, caps.ctrl, caps.plane_color, caps.wnd_color);
- plane++;
- }
- return size;
-}
-
-static ssize_t omapfb_show_caps_text(struct device *dev,
- struct device_attribute *attr, char *buf)
-{
- struct omapfb_device *fbdev = dev_get_drvdata(dev);
- int i;
- struct omapfb_caps caps;
- int plane;
- size_t size;
-
- plane = 0;
- size = 0;
- while (size < PAGE_SIZE && plane < OMAPFB_PLANE_NUM) {
- omapfb_get_caps(fbdev, plane, &caps);
- size += snprintf(&buf[size], PAGE_SIZE - size,
- "plane#%d:\n", plane);
- for (i = 0; i < ARRAY_SIZE(ctrl_caps) &&
- size < PAGE_SIZE; i++) {
- if (ctrl_caps[i].flag & caps.ctrl)
- size += snprintf(&buf[size], PAGE_SIZE - size,
- " %s\n", ctrl_caps[i].name);
- }
- size += snprintf(&buf[size], PAGE_SIZE - size,
- " plane colors:\n");
- for (i = 0; i < ARRAY_SIZE(color_caps) &&
- size < PAGE_SIZE; i++) {
- if (color_caps[i].flag & caps.plane_color)
- size += snprintf(&buf[size], PAGE_SIZE - size,
- " %s\n", color_caps[i].name);
- }
- size += snprintf(&buf[size], PAGE_SIZE - size,
- " window colors:\n");
- for (i = 0; i < ARRAY_SIZE(color_caps) &&
- size < PAGE_SIZE; i++) {
- if (color_caps[i].flag & caps.wnd_color)
- size += snprintf(&buf[size], PAGE_SIZE - size,
- " %s\n", color_caps[i].name);
- }
-
- plane++;
- }
- return size;
-}
-
-static DEVICE_ATTR(caps_num, 0444, omapfb_show_caps_num, NULL);
-static DEVICE_ATTR(caps_text, 0444, omapfb_show_caps_text, NULL);
-
-/* panel sysfs entries */
-static ssize_t omapfb_show_panel_name(struct device *dev,
- struct device_attribute *attr, char *buf)
-{
- struct omapfb_device *fbdev = dev_get_drvdata(dev);
-
- return snprintf(buf, PAGE_SIZE, "%s\n", fbdev->panel->name);
-}
-
-static ssize_t omapfb_show_bklight_level(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- struct omapfb_device *fbdev = dev_get_drvdata(dev);
- int r;
-
- if (fbdev->panel->get_bklight_level) {
- r = snprintf(buf, PAGE_SIZE, "%d\n",
- fbdev->panel->get_bklight_level(fbdev->panel));
- } else
- r = -ENODEV;
- return r;
-}
-
-static ssize_t omapfb_store_bklight_level(struct device *dev,
- struct device_attribute *attr,
- const char *buf, size_t size)
-{
- struct omapfb_device *fbdev = dev_get_drvdata(dev);
- int r;
-
- if (fbdev->panel->set_bklight_level) {
- unsigned int level;
-
- if (sscanf(buf, "%10d", &level) == 1) {
- r = fbdev->panel->set_bklight_level(fbdev->panel,
- level);
- } else
- r = -EINVAL;
- } else
- r = -ENODEV;
- return r ? r : size;
-}
-
-static ssize_t omapfb_show_bklight_max(struct device *dev,
- struct device_attribute *attr, char *buf)
-{
- struct omapfb_device *fbdev = dev_get_drvdata(dev);
- int r;
-
- if (fbdev->panel->get_bklight_level) {
- r = snprintf(buf, PAGE_SIZE, "%d\n",
- fbdev->panel->get_bklight_max(fbdev->panel));
- } else
- r = -ENODEV;
- return r;
-}
-
-static struct device_attribute dev_attr_panel_name =
- __ATTR(name, 0444, omapfb_show_panel_name, NULL);
-static DEVICE_ATTR(backlight_level, 0664,
- omapfb_show_bklight_level, omapfb_store_bklight_level);
-static DEVICE_ATTR(backlight_max, 0444, omapfb_show_bklight_max, NULL);
-
-static struct attribute *panel_attrs[] = {
- &dev_attr_panel_name.attr,
- &dev_attr_backlight_level.attr,
- &dev_attr_backlight_max.attr,
- NULL,
-};
-
-static struct attribute_group panel_attr_grp = {
- .name = "panel",
- .attrs = panel_attrs,
-};
-
-/* ctrl sysfs entries */
-static ssize_t omapfb_show_ctrl_name(struct device *dev,
- struct device_attribute *attr, char *buf)
-{
- struct omapfb_device *fbdev = dev_get_drvdata(dev);
-
- return snprintf(buf, PAGE_SIZE, "%s\n", fbdev->ctrl->name);
-}
-
-static struct device_attribute dev_attr_ctrl_name =
- __ATTR(name, 0444, omapfb_show_ctrl_name, NULL);
-
-static struct attribute *ctrl_attrs[] = {
- &dev_attr_ctrl_name.attr,
- NULL,
-};
-
-static struct attribute_group ctrl_attr_grp = {
- .name = "ctrl",
- .attrs = ctrl_attrs,
-};
-
-static int omapfb_register_sysfs(struct omapfb_device *fbdev)
-{
- int r;
-
- if ((r = device_create_file(fbdev->dev, &dev_attr_caps_num)))
- goto fail0;
-
- if ((r = device_create_file(fbdev->dev, &dev_attr_caps_text)))
- goto fail1;
-
- if ((r = sysfs_create_group(&fbdev->dev->kobj, &panel_attr_grp)))
- goto fail2;
-
- if ((r = sysfs_create_group(&fbdev->dev->kobj, &ctrl_attr_grp)))
- goto fail3;
-
- return 0;
-fail3:
- sysfs_remove_group(&fbdev->dev->kobj, &panel_attr_grp);
-fail2:
- device_remove_file(fbdev->dev, &dev_attr_caps_text);
-fail1:
- device_remove_file(fbdev->dev, &dev_attr_caps_num);
-fail0:
- dev_err(fbdev->dev, "unable to register sysfs interface\n");
- return r;
-}
-
-static void omapfb_unregister_sysfs(struct omapfb_device *fbdev)
-{
- sysfs_remove_group(&fbdev->dev->kobj, &ctrl_attr_grp);
- sysfs_remove_group(&fbdev->dev->kobj, &panel_attr_grp);
- device_remove_file(fbdev->dev, &dev_attr_caps_num);
- device_remove_file(fbdev->dev, &dev_attr_caps_text);
-}
-
-/*
- * ---------------------------------------------------------------------------
- * LDM callbacks
- * ---------------------------------------------------------------------------
- */
-/* Initialize system fb_info object and set the default video mode.
- * The frame buffer memory already allocated by lcddma_init
- */
-static int fbinfo_init(struct omapfb_device *fbdev, struct fb_info *info)
-{
- struct fb_var_screeninfo *var = &info->var;
- struct fb_fix_screeninfo *fix = &info->fix;
- int r = 0;
-
- info->fbops = &omapfb_ops;
- info->flags = FBINFO_FLAG_DEFAULT;
-
- strncpy(fix->id, MODULE_NAME, sizeof(fix->id));
-
- info->pseudo_palette = fbdev->pseudo_palette;
-
- var->accel_flags = def_accel ? FB_ACCELF_TEXT : 0;
- var->xres = def_vxres;
- var->yres = def_vyres;
- var->xres_virtual = def_vxres;
- var->yres_virtual = def_vyres;
- var->rotate = def_rotate;
- var->bits_per_pixel = fbdev->panel->bpp;
-
- set_fb_var(info, var);
- set_fb_fix(info, 1);
-
- r = fb_alloc_cmap(&info->cmap, 16, 0);
- if (r != 0)
- dev_err(fbdev->dev, "unable to allocate color map memory\n");
-
- return r;
-}
-
-/* Release the fb_info object */
-static void fbinfo_cleanup(struct omapfb_device *fbdev, struct fb_info *fbi)
-{
- fb_dealloc_cmap(&fbi->cmap);
-}
-
-static void planes_cleanup(struct omapfb_device *fbdev)
-{
- int i;
-
- for (i = 0; i < fbdev->mem_desc.region_cnt; i++) {
- if (fbdev->fb_info[i] == NULL)
- break;
- fbinfo_cleanup(fbdev, fbdev->fb_info[i]);
- framebuffer_release(fbdev->fb_info[i]);
- }
-}
-
-static int planes_init(struct omapfb_device *fbdev)
-{
- struct fb_info *fbi;
- int i;
- int r;
-
- for (i = 0; i < fbdev->mem_desc.region_cnt; i++) {
- struct omapfb_plane_struct *plane;
- fbi = framebuffer_alloc(sizeof(struct omapfb_plane_struct),
- fbdev->dev);
- if (fbi == NULL) {
- dev_err(fbdev->dev,
- "unable to allocate memory for plane info\n");
- planes_cleanup(fbdev);
- return -ENOMEM;
- }
- plane = fbi->par;
- plane->idx = i;
- plane->fbdev = fbdev;
- plane->info.mirror = def_mirror;
- fbdev->fb_info[i] = fbi;
-
- if ((r = fbinfo_init(fbdev, fbi)) < 0) {
- framebuffer_release(fbi);
- planes_cleanup(fbdev);
- return r;
- }
- plane->info.out_width = fbi->var.xres;
- plane->info.out_height = fbi->var.yres;
- }
- return 0;
-}
-
-/*
- * Free driver resources. Can be called to rollback an aborted initialization
- * sequence.
- */
-static void omapfb_free_resources(struct omapfb_device *fbdev, int state)
-{
- int i;
-
- switch (state) {
- case OMAPFB_ACTIVE:
- for (i = 0; i < fbdev->mem_desc.region_cnt; i++)
- unregister_framebuffer(fbdev->fb_info[i]);
- case 7:
- omapfb_unregister_sysfs(fbdev);
- case 6:
- fbdev->panel->disable(fbdev->panel);
- case 5:
- omapfb_set_update_mode(fbdev, OMAPFB_UPDATE_DISABLED);
- case 4:
- planes_cleanup(fbdev);
- case 3:
- ctrl_cleanup(fbdev);
- case 2:
- fbdev->panel->cleanup(fbdev->panel);
- case 1:
- dev_set_drvdata(fbdev->dev, NULL);
- kfree(fbdev);
- case 0:
- /* nothing to free */
- break;
- default:
- BUG();
- }
-}
-
-static int omapfb_find_ctrl(struct omapfb_device *fbdev)
-{
- struct omapfb_platform_data *conf;
- char name[17];
- int i;
-
- conf = fbdev->dev->platform_data;
-
- fbdev->ctrl = NULL;
-
- strncpy(name, conf->lcd.ctrl_name, sizeof(name) - 1);
- name[sizeof(name) - 1] = '\0';
-
- if (strcmp(name, "internal") == 0) {
- fbdev->ctrl = fbdev->int_ctrl;
- return 0;
- }
-
- for (i = 0; i < ARRAY_SIZE(ctrls); i++) {
- dev_dbg(fbdev->dev, "ctrl %s\n", ctrls[i]->name);
- if (strcmp(ctrls[i]->name, name) == 0) {
- fbdev->ctrl = ctrls[i];
- break;
- }
- }
-
- if (fbdev->ctrl == NULL) {
- dev_dbg(fbdev->dev, "ctrl %s not supported\n", name);
- return -1;
- }
-
- return 0;
-}
-
-static void check_required_callbacks(struct omapfb_device *fbdev)
-{
-#define _C(x) (fbdev->ctrl->x != NULL)
-#define _P(x) (fbdev->panel->x != NULL)
- BUG_ON(fbdev->ctrl == NULL || fbdev->panel == NULL);
- BUG_ON(!(_C(init) && _C(cleanup) && _C(get_caps) &&
- _C(set_update_mode) && _C(setup_plane) && _C(enable_plane) &&
- _P(init) && _P(cleanup) && _P(enable) && _P(disable) &&
- _P(get_caps)));
-#undef _P
-#undef _C
-}
-
-/*
- * Called by LDM binding to probe and attach a new device.
- * Initialization sequence:
- * 1. allocate system omapfb_device structure
- * 2. select controller type according to platform configuration
- * init LCD panel
- * 3. init LCD controller and LCD DMA
- * 4. init system fb_info structure for all planes
- * 5. setup video mode for first plane and enable it
- * 6. enable LCD panel
- * 7. register sysfs attributes
- * OMAPFB_ACTIVE: register system fb_info structure for all planes
- */
-static int omapfb_do_probe(struct platform_device *pdev,
- struct lcd_panel *panel)
-{
- struct omapfb_device *fbdev = NULL;
- int init_state;
- unsigned long phz, hhz, vhz;
- unsigned long vram;
- int i;
- int r = 0;
-
- init_state = 0;
-
- if (pdev->num_resources != 0) {
- dev_err(&pdev->dev, "probed for an unknown device\n");
- r = -ENODEV;
- goto cleanup;
- }
-
- if (pdev->dev.platform_data == NULL) {
- dev_err(&pdev->dev, "missing platform data\n");
- r = -ENOENT;
- goto cleanup;
- }
-
- fbdev = kzalloc(sizeof(struct omapfb_device), GFP_KERNEL);
- if (fbdev == NULL) {
- dev_err(&pdev->dev,
- "unable to allocate memory for device info\n");
- r = -ENOMEM;
- goto cleanup;
- }
- init_state++;
-
- fbdev->dev = &pdev->dev;
- fbdev->panel = panel;
- fbdev->dssdev = &omapdss_device;
- platform_set_drvdata(pdev, fbdev);
-
- mutex_init(&fbdev->rqueue_mutex);
-
- fbdev->int_ctrl = &omap1_int_ctrl;
-#ifdef CONFIG_FB_OMAP_LCDC_EXTERNAL
- fbdev->ext_if = &omap1_ext_if;
-#endif
- if (omapfb_find_ctrl(fbdev) < 0) {
- dev_err(fbdev->dev,
- "LCD controller not found, board not supported\n");
- r = -ENODEV;
- goto cleanup;
- }
-
- r = fbdev->panel->init(fbdev->panel, fbdev);
- if (r)
- goto cleanup;
-
- pr_info("omapfb: configured for panel %s\n", fbdev->panel->name);
-
- def_vxres = def_vxres ? def_vxres : fbdev->panel->x_res;
- def_vyres = def_vyres ? def_vyres : fbdev->panel->y_res;
-
- init_state++;
-
- r = ctrl_init(fbdev);
- if (r)
- goto cleanup;
- if (fbdev->ctrl->mmap != NULL)
- omapfb_ops.fb_mmap = omapfb_mmap;
- init_state++;
-
- check_required_callbacks(fbdev);
-
- r = planes_init(fbdev);
- if (r)
- goto cleanup;
- init_state++;
-
-#ifdef CONFIG_FB_OMAP_DMA_TUNE
- /* Set DMA priority for EMIFF access to highest */
- omap_set_dma_priority(0, OMAP_DMA_PORT_EMIFF, 15);
-#endif
-
- r = ctrl_change_mode(fbdev->fb_info[0]);
- if (r) {
- dev_err(fbdev->dev, "mode setting failed\n");
- goto cleanup;
- }
-
- /* GFX plane is enabled by default */
- r = fbdev->ctrl->enable_plane(OMAPFB_PLANE_GFX, 1);
- if (r)
- goto cleanup;
-
- omapfb_set_update_mode(fbdev, manual_update ?
- OMAPFB_MANUAL_UPDATE : OMAPFB_AUTO_UPDATE);
- init_state++;
-
- r = fbdev->panel->enable(fbdev->panel);
- if (r)
- goto cleanup;
- init_state++;
-
- r = omapfb_register_sysfs(fbdev);
- if (r)
- goto cleanup;
- init_state++;
-
- vram = 0;
- for (i = 0; i < fbdev->mem_desc.region_cnt; i++) {
- r = register_framebuffer(fbdev->fb_info[i]);
- if (r != 0) {
- dev_err(fbdev->dev,
- "registering framebuffer %d failed\n", i);
- goto cleanup;
- }
- vram += fbdev->mem_desc.region[i].size;
- }
-
- fbdev->state = OMAPFB_ACTIVE;
-
- panel = fbdev->panel;
- phz = panel->pixel_clock * 1000;
- hhz = phz * 10 / (panel->hfp + panel->x_res + panel->hbp + panel->hsw);
- vhz = hhz / (panel->vfp + panel->y_res + panel->vbp + panel->vsw);
-
- omapfb_dev = fbdev;
-
- pr_info("omapfb: Framebuffer initialized. Total vram %lu planes %d\n",
- vram, fbdev->mem_desc.region_cnt);
- pr_info("omapfb: Pixclock %lu kHz hfreq %lu.%lu kHz "
- "vfreq %lu.%lu Hz\n",
- phz / 1000, hhz / 10000, hhz % 10, vhz / 10, vhz % 10);
-
- return 0;
-
-cleanup:
- omapfb_free_resources(fbdev, init_state);
-
- return r;
-}
-
-static int omapfb_probe(struct platform_device *pdev)
-{
- int r;
-
- BUG_ON(fbdev_pdev != NULL);
-
- r = platform_device_register(&omapdss_device);
- if (r) {
- dev_err(&pdev->dev, "can't register omapdss device\n");
- return r;
- }
-
- /* Delay actual initialization until the LCD is registered */
- fbdev_pdev = pdev;
- if (fbdev_panel != NULL)
- omapfb_do_probe(fbdev_pdev, fbdev_panel);
- return 0;
-}
-
-void omapfb_register_panel(struct lcd_panel *panel)
-{
- BUG_ON(fbdev_panel != NULL);
-
- fbdev_panel = panel;
- if (fbdev_pdev != NULL)
- omapfb_do_probe(fbdev_pdev, fbdev_panel);
-}
-
-/* Called when the device is being detached from the driver */
-static int omapfb_remove(struct platform_device *pdev)
-{
- struct omapfb_device *fbdev = platform_get_drvdata(pdev);
- enum omapfb_state saved_state = fbdev->state;
-
- /* FIXME: wait till completion of pending events */
-
- fbdev->state = OMAPFB_DISABLED;
- omapfb_free_resources(fbdev, saved_state);
-
- platform_device_unregister(&omapdss_device);
- fbdev->dssdev = NULL;
-
- return 0;
-}
-
-/* PM suspend */
-static int omapfb_suspend(struct platform_device *pdev, pm_message_t mesg)
-{
- struct omapfb_device *fbdev = platform_get_drvdata(pdev);
-
- if (fbdev != NULL)
- omapfb_blank(FB_BLANK_POWERDOWN, fbdev->fb_info[0]);
- return 0;
-}
-
-/* PM resume */
-static int omapfb_resume(struct platform_device *pdev)
-{
- struct omapfb_device *fbdev = platform_get_drvdata(pdev);
-
- if (fbdev != NULL)
- omapfb_blank(FB_BLANK_UNBLANK, fbdev->fb_info[0]);
- return 0;
-}
-
-static struct platform_driver omapfb_driver = {
- .probe = omapfb_probe,
- .remove = omapfb_remove,
- .suspend = omapfb_suspend,
- .resume = omapfb_resume,
- .driver = {
- .name = MODULE_NAME,
- .owner = THIS_MODULE,
- },
-};
-
-#ifndef MODULE
-
-/* Process kernel command line parameters */
-static int __init omapfb_setup(char *options)
-{
- char *this_opt = NULL;
- int r = 0;
-
- pr_debug("omapfb: options %s\n", options);
-
- if (!options || !*options)
- return 0;
-
- while (!r && (this_opt = strsep(&options, ",")) != NULL) {
- if (!strncmp(this_opt, "accel", 5))
- def_accel = 1;
- else if (!strncmp(this_opt, "vram:", 5)) {
- char *suffix;
- unsigned long vram;
- vram = (simple_strtoul(this_opt + 5, &suffix, 0));
- switch (suffix[0]) {
- case '\0':
- break;
- case 'm':
- case 'M':
- vram *= 1024;
- /* Fall through */
- case 'k':
- case 'K':
- vram *= 1024;
- break;
- default:
- pr_debug("omapfb: invalid vram suffix %c\n",
- suffix[0]);
- r = -1;
- }
- def_vram[def_vram_cnt++] = vram;
- }
- else if (!strncmp(this_opt, "vxres:", 6))
- def_vxres = simple_strtoul(this_opt + 6, NULL, 0);
- else if (!strncmp(this_opt, "vyres:", 6))
- def_vyres = simple_strtoul(this_opt + 6, NULL, 0);
- else if (!strncmp(this_opt, "rotate:", 7))
- def_rotate = (simple_strtoul(this_opt + 7, NULL, 0));
- else if (!strncmp(this_opt, "mirror:", 7))
- def_mirror = (simple_strtoul(this_opt + 7, NULL, 0));
- else if (!strncmp(this_opt, "manual_update", 13))
- manual_update = 1;
- else {
- pr_debug("omapfb: invalid option\n");
- r = -1;
- }
- }
-
- return r;
-}
-
-#endif
-
-/* Register both the driver and the device */
-static int __init omapfb_init(void)
-{
-#ifndef MODULE
- char *option;
-
- if (fb_get_options("omapfb", &option))
- return -ENODEV;
- omapfb_setup(option);
-#endif
- /* Register the driver with LDM */
- if (platform_driver_register(&omapfb_driver)) {
- pr_debug("failed to register omapfb driver\n");
- return -ENODEV;
- }
-
- return 0;
-}
-
-static void __exit omapfb_cleanup(void)
-{
- platform_driver_unregister(&omapfb_driver);
-}
-
-module_param_named(accel, def_accel, uint, 0664);
-module_param_array_named(vram, def_vram, ulong, &def_vram_cnt, 0664);
-module_param_named(vxres, def_vxres, long, 0664);
-module_param_named(vyres, def_vyres, long, 0664);
-module_param_named(rotate, def_rotate, uint, 0664);
-module_param_named(mirror, def_mirror, uint, 0664);
-module_param_named(manual_update, manual_update, bool, 0664);
-
-module_init(omapfb_init);
-module_exit(omapfb_cleanup);
-
-MODULE_DESCRIPTION("TI OMAP framebuffer driver");
-MODULE_AUTHOR("Imre Deak <imre.deak@nokia.com>");
-MODULE_LICENSE("GPL");