diff options
author | Shawn Tu <shawnx.tu@intel.com> | 2020-01-13 09:27:02 +0300 |
---|---|---|
committer | Mauro Carvalho Chehab <mchehab+samsung@kernel.org> | 2020-02-27 23:16:36 +0300 |
commit | e8882e1bf3757224b031a8852078ea0a559fb864 (patch) | |
tree | 86efd67b73f9371fe62fb6a9fcb181a012cee8a1 | |
parent | 545d984cc90c5843ffa61afb1d0e64302368c411 (diff) | |
download | linux-e8882e1bf3757224b031a8852078ea0a559fb864.tar.xz |
media: ov5675: add vflip/hflip control support
- Add V4L2 controls: horizontal/vertical flip,
keep SGRBG10 Bayer order output (via change v/hflip)
- Fix Bayer order output in 1296x972 binning registers
Signed-off-by: Shawn Tu <shawnx.tu@intel.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
-rw-r--r-- | drivers/media/i2c/ov5675.c | 82 |
1 files changed, 73 insertions, 9 deletions
diff --git a/drivers/media/i2c/ov5675.c b/drivers/media/i2c/ov5675.c index 1ae252378799..8537cc4ca108 100644 --- a/drivers/media/i2c/ov5675.c +++ b/drivers/media/i2c/ov5675.c @@ -63,6 +63,10 @@ #define OV5675_TEST_PATTERN_ENABLE BIT(7) #define OV5675_TEST_PATTERN_BAR_SHIFT 2 +/* Flip Mirror Controls from sensor */ +#define OV5675_REG_FORMAT1 0x3820 +#define OV5675_REG_FORMAT2 0x373d + #define to_ov5675(_sd) container_of(_sd, struct ov5675, sd) enum { @@ -314,21 +318,21 @@ static const struct ov5675_reg mode_1296x972_regs[] = { {0x3800, 0x00}, {0x3801, 0x00}, {0x3802, 0x00}, - {0x3803, 0xf4}, + {0x3803, 0x00}, {0x3804, 0x0a}, {0x3805, 0x3f}, - {0x3806, 0x06}, - {0x3807, 0xb3}, + {0x3806, 0x07}, + {0x3807, 0xb7}, {0x3808, 0x05}, - {0x3809, 0x00}, - {0x380a, 0x02}, - {0x380b, 0xd0}, + {0x3809, 0x10}, + {0x380a, 0x03}, + {0x380b, 0xcc}, {0x380c, 0x02}, {0x380d, 0xee}, {0x380e, 0x07}, - {0x380f, 0xe4}, - {0x3811, 0x10}, - {0x3813, 0x09}, + {0x380f, 0xd0}, + {0x3811, 0x08}, + {0x3813, 0x0d}, {0x3814, 0x03}, {0x3815, 0x01}, {0x3816, 0x03}, @@ -604,6 +608,53 @@ static int ov5675_test_pattern(struct ov5675 *ov5675, u32 pattern) OV5675_REG_VALUE_08BIT, pattern); } +/* + * OV5675 supports keeping the pixel order by mirror and flip function + * The Bayer order isn't affected by the flip controls + */ +static int ov5675_set_ctrl_hflip(struct ov5675 *ov5675, u32 ctrl_val) +{ + int ret; + u32 val; + + ret = ov5675_read_reg(ov5675, OV5675_REG_FORMAT1, + OV5675_REG_VALUE_08BIT, &val); + if (ret) + return ret; + + return ov5675_write_reg(ov5675, OV5675_REG_FORMAT1, + OV5675_REG_VALUE_08BIT, + ctrl_val ? val & ~BIT(3) : val); +} + +static int ov5675_set_ctrl_vflip(struct ov5675 *ov5675, u8 ctrl_val) +{ + int ret; + u32 val; + + ret = ov5675_read_reg(ov5675, OV5675_REG_FORMAT1, + OV5675_REG_VALUE_08BIT, &val); + if (ret) + return ret; + + ret = ov5675_write_reg(ov5675, OV5675_REG_FORMAT1, + OV5675_REG_VALUE_08BIT, + ctrl_val ? val | BIT(4) | BIT(5) : val); + + if (ret) + return ret; + + ret = ov5675_read_reg(ov5675, OV5675_REG_FORMAT2, + OV5675_REG_VALUE_08BIT, &val); + + if (ret) + return ret; + + return ov5675_write_reg(ov5675, OV5675_REG_FORMAT2, + OV5675_REG_VALUE_08BIT, + ctrl_val ? val | BIT(1) : val); +} + static int ov5675_set_ctrl(struct v4l2_ctrl *ctrl) { struct ov5675 *ov5675 = container_of(ctrl->handler, @@ -654,6 +705,14 @@ static int ov5675_set_ctrl(struct v4l2_ctrl *ctrl) ret = ov5675_test_pattern(ov5675, ctrl->val); break; + case V4L2_CID_HFLIP: + ov5675_set_ctrl_hflip(ov5675, ctrl->val); + break; + + case V4L2_CID_VFLIP: + ov5675_set_ctrl_vflip(ov5675, ctrl->val); + break; + default: ret = -EINVAL; break; @@ -722,6 +781,11 @@ static int ov5675_init_controls(struct ov5675 *ov5675) V4L2_CID_TEST_PATTERN, ARRAY_SIZE(ov5675_test_pattern_menu) - 1, 0, 0, ov5675_test_pattern_menu); + v4l2_ctrl_new_std(ctrl_hdlr, &ov5675_ctrl_ops, + V4L2_CID_HFLIP, 0, 1, 1, 0); + v4l2_ctrl_new_std(ctrl_hdlr, &ov5675_ctrl_ops, + V4L2_CID_VFLIP, 0, 1, 1, 0); + if (ctrl_hdlr->error) return ctrl_hdlr->error; |