diff options
Diffstat (limited to 'drivers/media/video/wmt_v4l2/sensors/gc0311/gc0311.c')
| -rwxr-xr-x | drivers/media/video/wmt_v4l2/sensors/gc0311/gc0311.c | 224 |
1 files changed, 224 insertions, 0 deletions
diff --git a/drivers/media/video/wmt_v4l2/sensors/gc0311/gc0311.c b/drivers/media/video/wmt_v4l2/sensors/gc0311/gc0311.c new file mode 100755 index 00000000..c057106f --- /dev/null +++ b/drivers/media/video/wmt_v4l2/sensors/gc0311/gc0311.c @@ -0,0 +1,224 @@ + +#include "../cmos-subdev.h" +#include "../../wmt-vid.h" +#include "gc0311.h" + +#define sensor_write_array(sd, arr, sz) \ + cmos_init_8bit_addr(arr, sz, (sd)->i2c_addr) + +#define sensor_read(sd, reg) \ + wmt_vid_i2c_read(sd->i2c_addr, reg) + +#define sensor_write(sd, reg, val) \ + wmt_vid_i2c_write(sd->i2c_addr, reg, val) + +struct cmos_win_size { + char *name; + int width; + int height; + uint8_t *regs; + size_t size; +}; + +#define CMOS_WIN_SIZE(n, w, h, r) \ + {.name = n, .width = w , .height = h, .regs = r, .size = ARRAY_SIZE(r) } + +static const struct cmos_win_size cmos_supported_win_sizes[] = { + CMOS_WIN_SIZE("QVGA", 320, 240, gc0311_320x240), + CMOS_WIN_SIZE("VGA", 640, 480, gc0311_640x480), +}; + +static const struct cmos_win_size *cmos_select_win(u32 *width, u32 *height) +{ + int i; + + for (i = 0; i < ARRAY_SIZE(cmos_supported_win_sizes); i++) { + if (cmos_supported_win_sizes[i].width == *width && + cmos_supported_win_sizes[i].height == *height) { + *width = cmos_supported_win_sizes[i].width; + *height = cmos_supported_win_sizes[i].height; + return &cmos_supported_win_sizes[i]; + } + } + return NULL; +} + +static int sensor_s_hflip(struct cmos_subdev *sd, int value) +{ + int data; + + data = sensor_read(sd, 0x14); + + switch (value) { + case 0: + data &= ~0x01; + break; + case 1: + data |= 0x01; + break; + default: + return -EINVAL; + } + + return sensor_write(sd, 0x14, data); +} + +static int sensor_s_vflip(struct cmos_subdev *sd, int value) +{ + int data; + + data = sensor_read(sd, 0x14); + + switch (value) { + case 0: + data &= ~0x02; + break; + case 1: + data |= 0x02; + break; + default: + return -EINVAL; + } + + return sensor_write(sd, 0x14, data); +} + +static int sensor_s_wb(struct cmos_subdev *sd, enum v4l2_wb_mode value) +{ + uint8_t *regs; + size_t size; + + switch (value) { + case WHITE_BALANCE_AUTO: + regs = gc0311_wb_auto; + size = ARRAY_SIZE(gc0311_wb_auto); + break; + case WHITE_BALANCE_INCANDESCENCE: + regs = gc0311_wb_incandescent; + size = ARRAY_SIZE(gc0311_wb_incandescent); + break; + case WHITE_BALANCE_DAYLIGHT: + regs = gc0311_wb_daylight; + size = ARRAY_SIZE(gc0311_wb_daylight); + break; + case WHITE_BALANCE_CLOUDY: + regs = gc0311_wb_cloudy; + size = ARRAY_SIZE(gc0311_wb_cloudy); + break; + case WHITE_BALANCE_FLUORESCENT: + regs = gc0311_wb_fluorescent; + size = ARRAY_SIZE(gc0311_wb_fluorescent); + break; + default: + return -EINVAL; + } + + sensor_write_array(sd, regs, size); + return 0; +} + +static int sensor_queryctrl(struct cmos_subdev *sd, struct v4l2_queryctrl *qc) +{ + switch (qc->id) { + case V4L2_CID_VFLIP: + case V4L2_CID_HFLIP: + return v4l2_ctrl_query_fill(qc, 0, 1, 1, 0); + case V4L2_CID_DO_WHITE_BALANCE: + return v4l2_ctrl_query_fill(qc, 0, 3, 1, 0); + } + return -EINVAL; +} + +static int sensor_s_ctrl(struct cmos_subdev *sd, struct v4l2_control *ctrl) +{ + switch (ctrl->id) { + case V4L2_CID_VFLIP: + return sensor_s_vflip(sd, ctrl->value); + case V4L2_CID_HFLIP: + return sensor_s_hflip(sd, ctrl->value); + case V4L2_CID_DO_WHITE_BALANCE: + return sensor_s_wb(sd, ctrl->value); + } + return -EINVAL; +} + +static int sensor_g_mbus_fmt(struct cmos_subdev *sd, + struct v4l2_mbus_framefmt *mf) +{ + return -EINVAL; +} + +static int sensor_s_mbus_fmt(struct cmos_subdev *sd, + struct v4l2_mbus_framefmt *mf) +{ + const struct cmos_win_size *win; + + win = cmos_select_win(&mf->width, &mf->height); + if (!win) + return -EINVAL; + + sensor_write_array(sd, win->regs, win->size); + return 0; +} + +static int sensor_try_mbus_fmt(struct cmos_subdev *sd, + struct v4l2_mbus_framefmt *mf) +{ + return 0; +} + +static int sensor_identify(struct cmos_subdev *sd) +{ + return (sensor_read(sd, 0) == sd->id) ? 0 : -EINVAL; +} + +static int sensor_init(struct cmos_subdev *sd) +{ + if (!sensor_identify(sd)) { + return -1; + } + + sensor_write_array(sd, gc0311_default_regs_init, + ARRAY_SIZE(gc0311_default_regs_init)); + return 0; +} + +static int sensor_exit(struct cmos_subdev *sd) +{ + return 0; +} + +static struct cmos_subdev_ops gc0311_ops = { + .identify = sensor_identify, + .init = sensor_init, + .exit = sensor_exit, + .queryctrl = sensor_queryctrl, + .s_ctrl = sensor_s_ctrl, + .s_mbus_fmt = sensor_s_mbus_fmt, + .g_mbus_fmt = sensor_g_mbus_fmt, + .try_mbus_fmt = sensor_try_mbus_fmt, +}; + +struct cmos_subdev gc0311 = { + .name = "gc0311", + .i2c_addr = 0x21, + .id = 0xbb, + .max_width = 640, + .max_height = 480, + .ops = &gc0311_ops, +}; + +static int __init gc0311_init(void) +{ + return cmos_register_sudbdev(&gc0311); +} + +static void __exit gc0311_exit(void) +{ + return cmos_unregister_subdev(&gc0311); +} + +module_init(gc0311_init); +module_exit(gc0311_exit); + +MODULE_LICENSE("GPL"); |