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path: root/drivers/media/video/ov9640.c
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Diffstat (limited to 'drivers/media/video/ov9640.c')
-rw-r--r--drivers/media/video/ov9640.c107
1 files changed, 69 insertions, 38 deletions
diff --git a/drivers/media/video/ov9640.c b/drivers/media/video/ov9640.c
index c81ae2192887..47bf60ceb7a2 100644
--- a/drivers/media/video/ov9640.c
+++ b/drivers/media/video/ov9640.c
@@ -154,19 +154,10 @@ static const struct ov9640_reg ov9640_regs_rgb[] = {
154 { OV9640_MTXS, 0x65 }, 154 { OV9640_MTXS, 0x65 },
155}; 155};
156 156
157/* 157static enum v4l2_mbus_pixelcode ov9640_codes[] = {
158 * TODO: this sensor also supports RGB555 and RGB565 formats, but support for 158 V4L2_MBUS_FMT_YUYV8_2X8_BE,
159 * them has not yet been sufficiently tested and so it is not included with 159 V4L2_MBUS_FMT_RGB555_2X8_PADHI_LE,
160 * this version of the driver. To test and debug these formats add two entries 160 V4L2_MBUS_FMT_RGB565_2X8_LE,
161 * to the below array, see ov722x.c for an example.
162 */
163static const struct soc_camera_data_format ov9640_fmt_lists[] = {
164 {
165 .name = "UYVY",
166 .fourcc = V4L2_PIX_FMT_UYVY,
167 .depth = 16,
168 .colorspace = V4L2_COLORSPACE_JPEG,
169 },
170}; 161};
171 162
172static const struct v4l2_queryctrl ov9640_controls[] = { 163static const struct v4l2_queryctrl ov9640_controls[] = {
@@ -434,20 +425,22 @@ static void ov9640_res_roundup(u32 *width, u32 *height)
434} 425}
435 426
436/* Prepare necessary register changes depending on color encoding */ 427/* Prepare necessary register changes depending on color encoding */
437static void ov9640_alter_regs(u32 pixfmt, struct ov9640_reg_alt *alt) 428static void ov9640_alter_regs(enum v4l2_mbus_pixelcode code,
429 struct ov9640_reg_alt *alt)
438{ 430{
439 switch (pixfmt) { 431 switch (code) {
440 case V4L2_PIX_FMT_UYVY: 432 default:
433 case V4L2_MBUS_FMT_YUYV8_2X8_BE:
441 alt->com12 = OV9640_COM12_YUV_AVG; 434 alt->com12 = OV9640_COM12_YUV_AVG;
442 alt->com13 = OV9640_COM13_Y_DELAY_EN | 435 alt->com13 = OV9640_COM13_Y_DELAY_EN |
443 OV9640_COM13_YUV_DLY(0x01); 436 OV9640_COM13_YUV_DLY(0x01);
444 break; 437 break;
445 case V4L2_PIX_FMT_RGB555: 438 case V4L2_MBUS_FMT_RGB555_2X8_PADHI_LE:
446 alt->com7 = OV9640_COM7_RGB; 439 alt->com7 = OV9640_COM7_RGB;
447 alt->com13 = OV9640_COM13_RGB_AVG; 440 alt->com13 = OV9640_COM13_RGB_AVG;
448 alt->com15 = OV9640_COM15_RGB_555; 441 alt->com15 = OV9640_COM15_RGB_555;
449 break; 442 break;
450 case V4L2_PIX_FMT_RGB565: 443 case V4L2_MBUS_FMT_RGB565_2X8_LE:
451 alt->com7 = OV9640_COM7_RGB; 444 alt->com7 = OV9640_COM7_RGB;
452 alt->com13 = OV9640_COM13_RGB_AVG; 445 alt->com13 = OV9640_COM13_RGB_AVG;
453 alt->com15 = OV9640_COM15_RGB_565; 446 alt->com15 = OV9640_COM15_RGB_565;
@@ -456,8 +449,8 @@ static void ov9640_alter_regs(u32 pixfmt, struct ov9640_reg_alt *alt)
456} 449}
457 450
458/* Setup registers according to resolution and color encoding */ 451/* Setup registers according to resolution and color encoding */
459static int ov9640_write_regs(struct i2c_client *client, 452static int ov9640_write_regs(struct i2c_client *client, u32 width,
460 u32 width, u32 pixfmt, struct ov9640_reg_alt *alts) 453 enum v4l2_mbus_pixelcode code, struct ov9640_reg_alt *alts)
461{ 454{
462 const struct ov9640_reg *ov9640_regs, *matrix_regs; 455 const struct ov9640_reg *ov9640_regs, *matrix_regs;
463 int ov9640_regs_len, matrix_regs_len; 456 int ov9640_regs_len, matrix_regs_len;
@@ -500,7 +493,7 @@ static int ov9640_write_regs(struct i2c_client *client,
500 } 493 }
501 494
502 /* select color matrix configuration for given color encoding */ 495 /* select color matrix configuration for given color encoding */
503 if (pixfmt == V4L2_PIX_FMT_UYVY) { 496 if (code == V4L2_MBUS_FMT_YUYV8_2X8_BE) {
504 matrix_regs = ov9640_regs_yuv; 497 matrix_regs = ov9640_regs_yuv;
505 matrix_regs_len = ARRAY_SIZE(ov9640_regs_yuv); 498 matrix_regs_len = ARRAY_SIZE(ov9640_regs_yuv);
506 } else { 499 } else {
@@ -562,15 +555,17 @@ static int ov9640_prog_dflt(struct i2c_client *client)
562} 555}
563 556
564/* set the format we will capture in */ 557/* set the format we will capture in */
565static int ov9640_s_fmt(struct v4l2_subdev *sd, struct v4l2_format *f) 558static int ov9640_s_fmt(struct v4l2_subdev *sd,
559 struct v4l2_mbus_framefmt *mf)
566{ 560{
567 struct i2c_client *client = sd->priv; 561 struct i2c_client *client = sd->priv;
568 struct v4l2_pix_format *pix = &f->fmt.pix;
569 struct ov9640_reg_alt alts = {0}; 562 struct ov9640_reg_alt alts = {0};
563 enum v4l2_colorspace cspace;
564 enum v4l2_mbus_pixelcode code = mf->code;
570 int ret; 565 int ret;
571 566
572 ov9640_res_roundup(&pix->width, &pix->height); 567 ov9640_res_roundup(&mf->width, &mf->height);
573 ov9640_alter_regs(pix->pixelformat, &alts); 568 ov9640_alter_regs(mf->code, &alts);
574 569
575 ov9640_reset(client); 570 ov9640_reset(client);
576 571
@@ -578,19 +573,57 @@ static int ov9640_s_fmt(struct v4l2_subdev *sd, struct v4l2_format *f)
578 if (ret) 573 if (ret)
579 return ret; 574 return ret;
580 575
581 return ov9640_write_regs(client, pix->width, pix->pixelformat, &alts); 576 switch (code) {
577 case V4L2_MBUS_FMT_RGB555_2X8_PADHI_LE:
578 case V4L2_MBUS_FMT_RGB565_2X8_LE:
579 cspace = V4L2_COLORSPACE_SRGB;
580 break;
581 default:
582 code = V4L2_MBUS_FMT_YUYV8_2X8_BE;
583 case V4L2_MBUS_FMT_YUYV8_2X8_BE:
584 cspace = V4L2_COLORSPACE_JPEG;
585 }
586
587 ret = ov9640_write_regs(client, mf->width, code, &alts);
588 if (!ret) {
589 mf->code = code;
590 mf->colorspace = cspace;
591 }
592
593 return ret;
582} 594}
583 595
584static int ov9640_try_fmt(struct v4l2_subdev *sd, struct v4l2_format *f) 596static int ov9640_try_fmt(struct v4l2_subdev *sd,
597 struct v4l2_mbus_framefmt *mf)
585{ 598{
586 struct v4l2_pix_format *pix = &f->fmt.pix; 599 ov9640_res_roundup(&mf->width, &mf->height);
587 600
588 ov9640_res_roundup(&pix->width, &pix->height); 601 mf->field = V4L2_FIELD_NONE;
589 pix->field = V4L2_FIELD_NONE; 602
603 switch (mf->code) {
604 case V4L2_MBUS_FMT_RGB555_2X8_PADHI_LE:
605 case V4L2_MBUS_FMT_RGB565_2X8_LE:
606 mf->colorspace = V4L2_COLORSPACE_SRGB;
607 break;
608 default:
609 mf->code = V4L2_MBUS_FMT_YUYV8_2X8_BE;
610 case V4L2_MBUS_FMT_YUYV8_2X8_BE:
611 mf->colorspace = V4L2_COLORSPACE_JPEG;
612 }
590 613
591 return 0; 614 return 0;
592} 615}
593 616
617static int ov9640_enum_fmt(struct v4l2_subdev *sd, int index,
618 enum v4l2_mbus_pixelcode *code)
619{
620 if ((unsigned int)index >= ARRAY_SIZE(ov9640_codes))
621 return -EINVAL;
622
623 *code = ov9640_codes[index];
624 return 0;
625}
626
594static int ov9640_g_crop(struct v4l2_subdev *sd, struct v4l2_crop *a) 627static int ov9640_g_crop(struct v4l2_subdev *sd, struct v4l2_crop *a)
595{ 628{
596 a->c.left = 0; 629 a->c.left = 0;
@@ -637,9 +670,6 @@ static int ov9640_video_probe(struct soc_camera_device *icd,
637 goto err; 670 goto err;
638 } 671 }
639 672
640 icd->formats = ov9640_fmt_lists;
641 icd->num_formats = ARRAY_SIZE(ov9640_fmt_lists);
642
643 /* 673 /*
644 * check and show product ID and manufacturer ID 674 * check and show product ID and manufacturer ID
645 */ 675 */
@@ -702,11 +732,12 @@ static struct v4l2_subdev_core_ops ov9640_core_ops = {
702}; 732};
703 733
704static struct v4l2_subdev_video_ops ov9640_video_ops = { 734static struct v4l2_subdev_video_ops ov9640_video_ops = {
705 .s_stream = ov9640_s_stream, 735 .s_stream = ov9640_s_stream,
706 .s_fmt = ov9640_s_fmt, 736 .s_mbus_fmt = ov9640_s_fmt,
707 .try_fmt = ov9640_try_fmt, 737 .try_mbus_fmt = ov9640_try_fmt,
708 .cropcap = ov9640_cropcap, 738 .enum_mbus_fmt = ov9640_enum_fmt,
709 .g_crop = ov9640_g_crop, 739 .cropcap = ov9640_cropcap,
740 .g_crop = ov9640_g_crop,
710 741
711}; 742};
712 743