diff options
Diffstat (limited to 'drivers/media/usb/gspca/stk1135.c')
| -rw-r--r-- | drivers/media/usb/gspca/stk1135.c | 79 |
1 files changed, 41 insertions, 38 deletions
diff --git a/drivers/media/usb/gspca/stk1135.c b/drivers/media/usb/gspca/stk1135.c index 585868835ac..48234c9a8b6 100644 --- a/drivers/media/usb/gspca/stk1135.c +++ b/drivers/media/usb/gspca/stk1135.c @@ -48,42 +48,11 @@ struct sd { }; static const struct v4l2_pix_format stk1135_modes[] = { - {160, 120, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE, - .bytesperline = 160, - .sizeimage = 160 * 120, - .colorspace = V4L2_COLORSPACE_SRGB}, - {176, 144, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE, - .bytesperline = 176, - .sizeimage = 176 * 144, - .colorspace = V4L2_COLORSPACE_SRGB}, - {320, 240, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE, - .bytesperline = 320, - .sizeimage = 320 * 240, - .colorspace = V4L2_COLORSPACE_SRGB}, - {352, 288, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE, - .bytesperline = 352, - .sizeimage = 352 * 288, - .colorspace = V4L2_COLORSPACE_SRGB}, + /* default mode (this driver supports variable resolution) */ {640, 480, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE, .bytesperline = 640, .sizeimage = 640 * 480, .colorspace = V4L2_COLORSPACE_SRGB}, - {720, 576, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE, - .bytesperline = 720, - .sizeimage = 720 * 576, - .colorspace = V4L2_COLORSPACE_SRGB}, - {800, 600, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE, - .bytesperline = 800, - .sizeimage = 800 * 600, - .colorspace = V4L2_COLORSPACE_SRGB}, - {1024, 768, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE, - .bytesperline = 1024, - .sizeimage = 1024 * 768, - .colorspace = V4L2_COLORSPACE_SRGB}, - {1280, 1024, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE, - .bytesperline = 1280, - .sizeimage = 1280 * 1024, - .colorspace = V4L2_COLORSPACE_SRGB}, }; /* -- read a register -- */ @@ -347,16 +316,16 @@ static void stk1135_configure_mt9m112(struct gspca_dev *gspca_dev) sensor_write(gspca_dev, cfg[i].reg, cfg[i].val); /* set output size */ - width = gspca_dev->cam.cam_mode[gspca_dev->curr_mode].width; - height = gspca_dev->cam.cam_mode[gspca_dev->curr_mode].height; - if (width <= 640) { /* use context A (half readout speed by default) */ + width = gspca_dev->pixfmt.width; + height = gspca_dev->pixfmt.height; + if (width <= 640 && height <= 512) { /* context A (half readout speed)*/ sensor_write(gspca_dev, 0x1a7, width); sensor_write(gspca_dev, 0x1aa, height); /* set read mode context A */ sensor_write(gspca_dev, 0x0c8, 0x0000); /* set resize, read mode, vblank, hblank context A */ sensor_write(gspca_dev, 0x2c8, 0x0000); - } else { /* use context B (full readout speed by default) */ + } else { /* context B (full readout speed) */ sensor_write(gspca_dev, 0x1a1, width); sensor_write(gspca_dev, 0x1a4, height); /* set read mode context B */ @@ -392,6 +361,9 @@ static void stk1135_configure_clock(struct gspca_dev *gspca_dev) /* set serial interface clock divider (30MHz/0x1f*16+2) = 60240 kHz) */ reg_w(gspca_dev, STK1135_REG_SICTL + 2, 0x1f); + + /* wait a while for sensor to catch up */ + udelay(1000); } static void stk1135_camera_disable(struct gspca_dev *gspca_dev) @@ -484,8 +456,8 @@ static int sd_start(struct gspca_dev *gspca_dev) reg_w(gspca_dev, STK1135_REG_CISPO + 3, 0x00); /* set capture end position */ - width = gspca_dev->cam.cam_mode[gspca_dev->curr_mode].width; - height = gspca_dev->cam.cam_mode[gspca_dev->curr_mode].height; + width = gspca_dev->pixfmt.width; + height = gspca_dev->pixfmt.height; reg_w(gspca_dev, STK1135_REG_CIEPO + 0, width & 0xff); reg_w(gspca_dev, STK1135_REG_CIEPO + 1, width >> 8); reg_w(gspca_dev, STK1135_REG_CIEPO + 2, height & 0xff); @@ -643,6 +615,35 @@ static int sd_init_controls(struct gspca_dev *gspca_dev) return 0; } +static void stk1135_try_fmt(struct gspca_dev *gspca_dev, struct v4l2_format *fmt) +{ + fmt->fmt.pix.width = clamp(fmt->fmt.pix.width, 32U, 1280U); + fmt->fmt.pix.height = clamp(fmt->fmt.pix.height, 32U, 1024U); + /* round up to even numbers */ + fmt->fmt.pix.width += (fmt->fmt.pix.width & 1); + fmt->fmt.pix.height += (fmt->fmt.pix.height & 1); + + fmt->fmt.pix.bytesperline = fmt->fmt.pix.width; + fmt->fmt.pix.sizeimage = fmt->fmt.pix.width * fmt->fmt.pix.height; +} + +static int stk1135_enum_framesizes(struct gspca_dev *gspca_dev, + struct v4l2_frmsizeenum *fsize) +{ + if (fsize->index != 0 || fsize->pixel_format != V4L2_PIX_FMT_SBGGR8) + return -EINVAL; + + fsize->type = V4L2_FRMSIZE_TYPE_STEPWISE; + fsize->stepwise.min_width = 32; + fsize->stepwise.min_height = 32; + fsize->stepwise.max_width = 1280; + fsize->stepwise.max_height = 1024; + fsize->stepwise.step_width = 2; + fsize->stepwise.step_height = 2; + + return 0; +} + /* sub-driver description */ static const struct sd_desc sd_desc = { .name = MODULE_NAME, @@ -653,6 +654,8 @@ static const struct sd_desc sd_desc = { .stopN = sd_stopN, .pkt_scan = sd_pkt_scan, .dq_callback = stk1135_dq_callback, + .try_fmt = stk1135_try_fmt, + .enum_framesizes = stk1135_enum_framesizes, }; /* -- module initialisation -- */ |