From: Andrew Chew <[email protected]>
Made all hex number casing use lower-case throughout the entire driver
for consistency.
Signed-off-by: Andrew Chew <[email protected]>
---
drivers/media/video/ov9740.c | 111 +++++++++++++++++++++---------------------
1 files changed, 55 insertions(+), 56 deletions(-)
diff --git a/drivers/media/video/ov9740.c b/drivers/media/video/ov9740.c
index 4d4ee4f..96811e4 100644
--- a/drivers/media/video/ov9740.c
+++ b/drivers/media/video/ov9740.c
@@ -44,12 +44,12 @@
#define OV9740_Y_ADDR_START_LO 0x0347
#define OV9740_X_ADDR_END_HI 0x0348
#define OV9740_X_ADDR_END_LO 0x0349
-#define OV9740_Y_ADDR_END_HI 0x034A
-#define OV9740_Y_ADDR_END_LO 0x034B
-#define OV9740_X_OUTPUT_SIZE_HI 0x034C
-#define OV9740_X_OUTPUT_SIZE_LO 0x034D
-#define OV9740_Y_OUTPUT_SIZE_HI 0x034E
-#define OV9740_Y_OUTPUT_SIZE_LO 0x034F
+#define OV9740_Y_ADDR_END_HI 0x034a
+#define OV9740_Y_ADDR_END_LO 0x034b
+#define OV9740_X_OUTPUT_SIZE_HI 0x034c
+#define OV9740_X_OUTPUT_SIZE_LO 0x034d
+#define OV9740_Y_OUTPUT_SIZE_HI 0x034e
+#define OV9740_Y_OUTPUT_SIZE_LO 0x034f
/* IO Control Registers */
#define OV9740_IO_CREL00 0x3002
@@ -89,28 +89,28 @@
#define OV9740_TIMING_CTRL35 0x3835
/* Banding Filter */
-#define OV9740_AEC_MAXEXPO_60_H 0x3A02
-#define OV9740_AEC_MAXEXPO_60_L 0x3A03
-#define OV9740_AEC_B50_STEP_HI 0x3A08
-#define OV9740_AEC_B50_STEP_LO 0x3A09
-#define OV9740_AEC_B60_STEP_HI 0x3A0A
-#define OV9740_AEC_B60_STEP_LO 0x3A0B
-#define OV9740_AEC_CTRL0D 0x3A0D
-#define OV9740_AEC_CTRL0E 0x3A0E
-#define OV9740_AEC_MAXEXPO_50_H 0x3A14
-#define OV9740_AEC_MAXEXPO_50_L 0x3A15
+#define OV9740_AEC_MAXEXPO_60_H 0x3a02
+#define OV9740_AEC_MAXEXPO_60_L 0x3a03
+#define OV9740_AEC_B50_STEP_HI 0x3a08
+#define OV9740_AEC_B50_STEP_LO 0x3a09
+#define OV9740_AEC_B60_STEP_HI 0x3a0a
+#define OV9740_AEC_B60_STEP_LO 0x3a0b
+#define OV9740_AEC_CTRL0D 0x3a0d
+#define OV9740_AEC_CTRL0E 0x3a0e
+#define OV9740_AEC_MAXEXPO_50_H 0x3a14
+#define OV9740_AEC_MAXEXPO_50_L 0x3a15
/* AEC/AGC Control */
#define OV9740_AEC_ENABLE 0x3503
-#define OV9740_GAIN_CEILING_01 0x3A18
-#define OV9740_GAIN_CEILING_02 0x3A19
-#define OV9740_AEC_HI_THRESHOLD 0x3A11
-#define OV9740_AEC_3A1A 0x3A1A
-#define OV9740_AEC_CTRL1B_WPT2 0x3A1B
-#define OV9740_AEC_CTRL0F_WPT 0x3A0F
-#define OV9740_AEC_CTRL10_BPT 0x3A10
-#define OV9740_AEC_CTRL1E_BPT2 0x3A1E
-#define OV9740_AEC_LO_THRESHOLD 0x3A1F
+#define OV9740_GAIN_CEILING_01 0x3a18
+#define OV9740_GAIN_CEILING_02 0x3a19
+#define OV9740_AEC_HI_THRESHOLD 0x3a11
+#define OV9740_AEC_3A1A 0x3a1a
+#define OV9740_AEC_CTRL1B_WPT2 0x3a1b
+#define OV9740_AEC_CTRL0F_WPT 0x3a0f
+#define OV9740_AEC_CTRL10_BPT 0x3a10
+#define OV9740_AEC_CTRL1E_BPT2 0x3a1e
+#define OV9740_AEC_LO_THRESHOLD 0x3a1f
/* BLC Control */
#define OV9740_BLC_AUTO_ENABLE 0x4002
@@ -132,7 +132,7 @@
#define OV9740_VT_SYS_CLK_DIV 0x0303
#define OV9740_VT_PIX_CLK_DIV 0x0301
#define OV9740_PLL_CTRL3010 0x3010
-#define OV9740_VFIFO_CTRL00 0x460E
+#define OV9740_VFIFO_CTRL00 0x460e
/* ISP Control */
#define OV9740_ISP_CTRL00 0x5000
@@ -141,9 +141,9 @@
#define OV9740_ISP_CTRL05 0x5005
#define OV9740_ISP_CTRL12 0x5012
#define OV9740_ISP_CTRL19 0x5019
-#define OV9740_ISP_CTRL1A 0x501A
-#define OV9740_ISP_CTRL1E 0x501E
-#define OV9740_ISP_CTRL1F 0x501F
+#define OV9740_ISP_CTRL1A 0x501a
+#define OV9740_ISP_CTRL1E 0x501e
+#define OV9740_ISP_CTRL1F 0x501f
#define OV9740_ISP_CTRL20 0x5020
#define OV9740_ISP_CTRL21 0x5021
@@ -158,12 +158,12 @@
#define OV9740_AWB_ADV_CTRL04 0x5187
#define OV9740_AWB_ADV_CTRL05 0x5188
#define OV9740_AWB_ADV_CTRL06 0x5189
-#define OV9740_AWB_ADV_CTRL07 0x518A
-#define OV9740_AWB_ADV_CTRL08 0x518B
-#define OV9740_AWB_ADV_CTRL09 0x518C
-#define OV9740_AWB_ADV_CTRL10 0x518D
-#define OV9740_AWB_ADV_CTRL11 0x518E
-#define OV9740_AWB_CTRL0F 0x518F
+#define OV9740_AWB_ADV_CTRL07 0x518a
+#define OV9740_AWB_ADV_CTRL08 0x518b
+#define OV9740_AWB_ADV_CTRL09 0x518c
+#define OV9740_AWB_ADV_CTRL10 0x518d
+#define OV9740_AWB_ADV_CTRL11 0x518e
+#define OV9740_AWB_CTRL0F 0x518f
#define OV9740_AWB_CTRL10 0x5190
#define OV9740_AWB_CTRL11 0x5191
#define OV9740_AWB_CTRL12 0x5192
@@ -241,36 +241,36 @@ static const struct ov9740_reg ov9740_defaults[] = {
/* Un-documented OV9740 registers */
{ 0x5800, 0x29 }, { 0x5801, 0x25 }, { 0x5802, 0x20 }, { 0x5803, 0x21 },
{ 0x5804, 0x26 }, { 0x5805, 0x2e }, { 0x5806, 0x11 }, { 0x5807, 0x0c },
- { 0x5808, 0x09 }, { 0x5809, 0x0a }, { 0x580A, 0x0e }, { 0x580B, 0x16 },
- { 0x580C, 0x06 }, { 0x580D, 0x02 }, { 0x580E, 0x00 }, { 0x580F, 0x00 },
+ { 0x5808, 0x09 }, { 0x5809, 0x0a }, { 0x580a, 0x0e }, { 0x580b, 0x16 },
+ { 0x580c, 0x06 }, { 0x580d, 0x02 }, { 0x580e, 0x00 }, { 0x580f, 0x00 },
{ 0x5810, 0x04 }, { 0x5811, 0x0a }, { 0x5812, 0x05 }, { 0x5813, 0x02 },
{ 0x5814, 0x00 }, { 0x5815, 0x00 }, { 0x5816, 0x03 }, { 0x5817, 0x09 },
- { 0x5818, 0x0f }, { 0x5819, 0x0a }, { 0x581A, 0x07 }, { 0x581B, 0x08 },
- { 0x581C, 0x0b }, { 0x581D, 0x14 }, { 0x581E, 0x28 }, { 0x581F, 0x23 },
+ { 0x5818, 0x0f }, { 0x5819, 0x0a }, { 0x581a, 0x07 }, { 0x581b, 0x08 },
+ { 0x581c, 0x0b }, { 0x581d, 0x14 }, { 0x581e, 0x28 }, { 0x581f, 0x23 },
{ 0x5820, 0x1d }, { 0x5821, 0x1e }, { 0x5822, 0x24 }, { 0x5823, 0x2a },
{ 0x5824, 0x4f }, { 0x5825, 0x6f }, { 0x5826, 0x5f }, { 0x5827, 0x7f },
- { 0x5828, 0x9f }, { 0x5829, 0x5f }, { 0x582A, 0x8f }, { 0x582B, 0x9e },
- { 0x582C, 0x8f }, { 0x582D, 0x9f }, { 0x582E, 0x4f }, { 0x582F, 0x87 },
+ { 0x5828, 0x9f }, { 0x5829, 0x5f }, { 0x582a, 0x8f }, { 0x582b, 0x9e },
+ { 0x582c, 0x8f }, { 0x582d, 0x9f }, { 0x582e, 0x4f }, { 0x582f, 0x87 },
{ 0x5830, 0x86 }, { 0x5831, 0x97 }, { 0x5832, 0xae }, { 0x5833, 0x3f },
{ 0x5834, 0x8e }, { 0x5835, 0x7c }, { 0x5836, 0x7e }, { 0x5837, 0xaf },
- { 0x5838, 0x8f }, { 0x5839, 0x8f }, { 0x583A, 0x9f }, { 0x583B, 0x7f },
- { 0x583C, 0x5f },
+ { 0x5838, 0x8f }, { 0x5839, 0x8f }, { 0x583a, 0x9f }, { 0x583b, 0x7f },
+ { 0x583c, 0x5f },
/* Y Gamma */
{ 0x5480, 0x07 }, { 0x5481, 0x18 }, { 0x5482, 0x2c }, { 0x5483, 0x4e },
{ 0x5484, 0x5e }, { 0x5485, 0x6b }, { 0x5486, 0x77 }, { 0x5487, 0x82 },
- { 0x5488, 0x8c }, { 0x5489, 0x95 }, { 0x548A, 0xa4 }, { 0x548B, 0xb1 },
- { 0x548C, 0xc6 }, { 0x548D, 0xd8 }, { 0x548E, 0xe9 },
+ { 0x5488, 0x8c }, { 0x5489, 0x95 }, { 0x548a, 0xa4 }, { 0x548b, 0xb1 },
+ { 0x548c, 0xc6 }, { 0x548d, 0xd8 }, { 0x548e, 0xe9 },
/* UV Gamma */
{ 0x5490, 0x0f }, { 0x5491, 0xff }, { 0x5492, 0x0d }, { 0x5493, 0x05 },
{ 0x5494, 0x07 }, { 0x5495, 0x1a }, { 0x5496, 0x04 }, { 0x5497, 0x01 },
- { 0x5498, 0x03 }, { 0x5499, 0x53 }, { 0x549A, 0x02 }, { 0x549B, 0xeb },
- { 0x549C, 0x02 }, { 0x549D, 0xa0 }, { 0x549E, 0x02 }, { 0x549F, 0x67 },
- { 0x54A0, 0x02 }, { 0x54A1, 0x3b }, { 0x54A2, 0x02 }, { 0x54A3, 0x18 },
- { 0x54A4, 0x01 }, { 0x54A5, 0xe7 }, { 0x54A6, 0x01 }, { 0x54A7, 0xc3 },
- { 0x54A8, 0x01 }, { 0x54A9, 0x94 }, { 0x54AA, 0x01 }, { 0x54AB, 0x72 },
- { 0x54AC, 0x01 }, { 0x54AD, 0x57 },
+ { 0x5498, 0x03 }, { 0x5499, 0x53 }, { 0x549a, 0x02 }, { 0x549b, 0xeb },
+ { 0x549c, 0x02 }, { 0x549d, 0xa0 }, { 0x549e, 0x02 }, { 0x549f, 0x67 },
+ { 0x54a0, 0x02 }, { 0x54a1, 0x3b }, { 0x54a2, 0x02 }, { 0x54a3, 0x18 },
+ { 0x54a4, 0x01 }, { 0x54a5, 0xe7 }, { 0x54a6, 0x01 }, { 0x54a7, 0xc3 },
+ { 0x54a8, 0x01 }, { 0x54a9, 0x94 }, { 0x54aa, 0x01 }, { 0x54ab, 0x72 },
+ { 0x54ac, 0x01 }, { 0x54ad, 0x57 },
/* AWB */
{ OV9740_AWB_CTRL00, 0xf0 },
@@ -296,18 +296,18 @@ static const struct ov9740_reg ov9740_defaults[] = {
{ OV9740_AWB_CTRL14, 0x00 },
/* CIP */
- { 0x530D, 0x12 },
+ { 0x530d, 0x12 },
/* CMX */
{ 0x5380, 0x01 }, { 0x5381, 0x00 }, { 0x5382, 0x00 }, { 0x5383, 0x17 },
{ 0x5384, 0x00 }, { 0x5385, 0x01 }, { 0x5386, 0x00 }, { 0x5387, 0x00 },
- { 0x5388, 0x00 }, { 0x5389, 0xe0 }, { 0x538A, 0x00 }, { 0x538B, 0x20 },
- { 0x538C, 0x00 }, { 0x538D, 0x00 }, { 0x538E, 0x00 }, { 0x538F, 0x16 },
+ { 0x5388, 0x00 }, { 0x5389, 0xe0 }, { 0x538a, 0x00 }, { 0x538b, 0x20 },
+ { 0x538c, 0x00 }, { 0x538d, 0x00 }, { 0x538e, 0x00 }, { 0x538f, 0x16 },
{ 0x5390, 0x00 }, { 0x5391, 0x9c }, { 0x5392, 0x00 }, { 0x5393, 0xa0 },
{ 0x5394, 0x18 },
/* 50/60 Detection */
- { 0x3C0A, 0x9c }, { 0x3C0B, 0x3f },
+ { 0x3c0a, 0x9c }, { 0x3c0b, 0x3f },
/* Output Select */
{ OV9740_IO_OUTPUT_SEL01, 0x00 },
@@ -909,7 +909,6 @@ static struct v4l2_subdev_core_ops ov9740_core_ops = {
.g_register = ov9740_get_register,
.s_register = ov9740_set_register,
#endif
-
};
static struct v4l2_subdev_video_ops ov9740_video_ops = {
--
1.7.5.4
From: Andrew Chew <[email protected]>
The register width of the ov9740 is 16-bits, so correct the debug print
to reflect this.
Signed-off-by: Andrew Chew <[email protected]>
---
drivers/media/video/ov9740.c | 6 ++++--
1 files changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/media/video/ov9740.c b/drivers/media/video/ov9740.c
index 96811e4..d5c9061 100644
--- a/drivers/media/video/ov9740.c
+++ b/drivers/media/video/ov9740.c
@@ -537,7 +537,8 @@ static int ov9740_reg_rmw(struct i2c_client *client, u16 reg, u8 set, u8 unset)
ret = ov9740_reg_read(client, reg, &val);
if (ret < 0) {
dev_err(&client->dev,
- "[Read]-Modify-Write of register %02x failed!\n", reg);
+ "[Read]-Modify-Write of register 0x%04x failed!\n",
+ reg);
return ret;
}
@@ -547,7 +548,8 @@ static int ov9740_reg_rmw(struct i2c_client *client, u16 reg, u8 set, u8 unset)
ret = ov9740_reg_write(client, reg, val);
if (ret < 0) {
dev_err(&client->dev,
- "Read-Modify-[Write] of register %02x failed!\n", reg);
+ "Read-Modify-[Write] of register 0x%04x failed!\n",
+ reg);
return ret;
}
--
1.7.5.4
From: Andrew Chew <[email protected]>
Based on vendor feedback, should issue a software reset at start of day.
Also, OV9740_ANALOG_CTRL15 needs to be changed so the sensor does not begin
streaming until it is ready (otherwise, results in a nonsense frame for the
initial frame).
Added a comment on using discontinuous clock.
Finally, OV9740_ISP_CTRL19 needs to be changed to really use YUYV ordering
(the previous value was for VYUY).
Signed-off-by: Andrew Chew <[email protected]>
---
drivers/media/video/ov9740.c | 10 +++++++++-
1 files changed, 9 insertions(+), 1 deletions(-)
diff --git a/drivers/media/video/ov9740.c b/drivers/media/video/ov9740.c
index d5c9061..72c6ac1d 100644
--- a/drivers/media/video/ov9740.c
+++ b/drivers/media/video/ov9740.c
@@ -68,6 +68,7 @@
#define OV9740_ANALOG_CTRL04 0x3604
#define OV9740_ANALOG_CTRL10 0x3610
#define OV9740_ANALOG_CTRL12 0x3612
+#define OV9740_ANALOG_CTRL15 0x3615
#define OV9740_ANALOG_CTRL20 0x3620
#define OV9740_ANALOG_CTRL21 0x3621
#define OV9740_ANALOG_CTRL22 0x3622
@@ -222,6 +223,9 @@ struct ov9740_priv {
};
static const struct ov9740_reg ov9740_defaults[] = {
+ /* Software Reset */
+ { OV9740_SOFTWARE_RESET, 0x01 },
+
/* Banding Filter */
{ OV9740_AEC_B50_STEP_HI, 0x00 },
{ OV9740_AEC_B50_STEP_LO, 0xe8 },
@@ -333,6 +337,7 @@ static const struct ov9740_reg ov9740_defaults[] = {
{ OV9740_ANALOG_CTRL10, 0xa1 },
{ OV9740_ANALOG_CTRL12, 0x24 },
{ OV9740_ANALOG_CTRL22, 0x9f },
+ { OV9740_ANALOG_CTRL15, 0xf0 },
/* Sensor Control */
{ OV9740_SENSOR_CTRL03, 0x42 },
@@ -385,7 +390,7 @@ static const struct ov9740_reg ov9740_defaults[] = {
{ OV9740_LN_LENGTH_PCK_LO, 0x62 },
/* MIPI Control */
- { OV9740_MIPI_CTRL00, 0x44 },
+ { OV9740_MIPI_CTRL00, 0x44 }, /* 0x64 for discontinuous clk */
{ OV9740_MIPI_3837, 0x01 },
{ OV9740_MIPI_CTRL01, 0x0f },
{ OV9740_MIPI_CTRL03, 0x05 },
@@ -393,6 +398,9 @@ static const struct ov9740_reg ov9740_defaults[] = {
{ OV9740_VFIFO_RD_CTRL, 0x16 },
{ OV9740_MIPI_CTRL_3012, 0x70 },
{ OV9740_SC_CMMM_MIPI_CTR, 0x01 },
+
+ /* YUYV order */
+ { OV9740_ISP_CTRL19, 0x02 },
};
static const struct ov9740_reg ov9740_regs_vga[] = {
--
1.7.5.4
From: Andrew Chew <[email protected]>
Derive resolution-dependent register settings programmatically.
Signed-off-by: Andrew Chew <[email protected]>
---
drivers/media/video/ov9740.c | 210 +++++++++++++++++++++++-------------------
1 files changed, 114 insertions(+), 96 deletions(-)
diff --git a/drivers/media/video/ov9740.c b/drivers/media/video/ov9740.c
index 72c6ac1d..decd706 100644
--- a/drivers/media/video/ov9740.c
+++ b/drivers/media/video/ov9740.c
@@ -181,27 +181,8 @@
#define OV9740_MIPI_CTRL_3012 0x3012
#define OV9740_SC_CMMM_MIPI_CTR 0x3014
-/* supported resolutions */
-enum {
- OV9740_VGA,
- OV9740_720P,
-};
-
-struct ov9740_resolution {
- unsigned int width;
- unsigned int height;
-};
-
-static struct ov9740_resolution ov9740_resolutions[] = {
- [OV9740_VGA] = {
- .width = 640,
- .height = 480,
- },
- [OV9740_720P] = {
- .width = 1280,
- .height = 720,
- },
-};
+#define OV9740_MAX_WIDTH 1280
+#define OV9740_MAX_HEIGHT 720
/* Misc. structures */
struct ov9740_reg {
@@ -403,54 +384,6 @@ static const struct ov9740_reg ov9740_defaults[] = {
{ OV9740_ISP_CTRL19, 0x02 },
};
-static const struct ov9740_reg ov9740_regs_vga[] = {
- { OV9740_X_ADDR_START_HI, 0x00 },
- { OV9740_X_ADDR_START_LO, 0xa0 },
- { OV9740_Y_ADDR_START_HI, 0x00 },
- { OV9740_Y_ADDR_START_LO, 0x00 },
- { OV9740_X_ADDR_END_HI, 0x04 },
- { OV9740_X_ADDR_END_LO, 0x63 },
- { OV9740_Y_ADDR_END_HI, 0x02 },
- { OV9740_Y_ADDR_END_LO, 0xd3 },
- { OV9740_X_OUTPUT_SIZE_HI, 0x02 },
- { OV9740_X_OUTPUT_SIZE_LO, 0x80 },
- { OV9740_Y_OUTPUT_SIZE_HI, 0x01 },
- { OV9740_Y_OUTPUT_SIZE_LO, 0xe0 },
- { OV9740_ISP_CTRL1E, 0x03 },
- { OV9740_ISP_CTRL1F, 0xc0 },
- { OV9740_ISP_CTRL20, 0x02 },
- { OV9740_ISP_CTRL21, 0xd0 },
- { OV9740_VFIFO_READ_START_HI, 0x01 },
- { OV9740_VFIFO_READ_START_LO, 0x40 },
- { OV9740_ISP_CTRL00, 0xff },
- { OV9740_ISP_CTRL01, 0xff },
- { OV9740_ISP_CTRL03, 0xff },
-};
-
-static const struct ov9740_reg ov9740_regs_720p[] = {
- { OV9740_X_ADDR_START_HI, 0x00 },
- { OV9740_X_ADDR_START_LO, 0x00 },
- { OV9740_Y_ADDR_START_HI, 0x00 },
- { OV9740_Y_ADDR_START_LO, 0x00 },
- { OV9740_X_ADDR_END_HI, 0x05 },
- { OV9740_X_ADDR_END_LO, 0x03 },
- { OV9740_Y_ADDR_END_HI, 0x02 },
- { OV9740_Y_ADDR_END_LO, 0xd3 },
- { OV9740_X_OUTPUT_SIZE_HI, 0x05 },
- { OV9740_X_OUTPUT_SIZE_LO, 0x00 },
- { OV9740_Y_OUTPUT_SIZE_HI, 0x02 },
- { OV9740_Y_OUTPUT_SIZE_LO, 0xd0 },
- { OV9740_ISP_CTRL1E, 0x05 },
- { OV9740_ISP_CTRL1F, 0x00 },
- { OV9740_ISP_CTRL20, 0x02 },
- { OV9740_ISP_CTRL21, 0xd0 },
- { OV9740_VFIFO_READ_START_HI, 0x02 },
- { OV9740_VFIFO_READ_START_LO, 0x30 },
- { OV9740_ISP_CTRL00, 0xff },
- { OV9740_ISP_CTRL01, 0xef },
- { OV9740_ISP_CTRL03, 0xff },
-};
-
static enum v4l2_mbus_pixelcode ov9740_codes[] = {
V4L2_MBUS_FMT_YUYV8_2X8,
};
@@ -727,39 +660,124 @@ static int ov9740_set_register(struct v4l2_subdev *sd,
/* select nearest higher resolution for capture */
static void ov9740_res_roundup(u32 *width, u32 *height)
{
- int i;
+ /* Width must be a multiple of 4 pixels. */
+ *width = ALIGN(*width, 4);
- for (i = 0; i < ARRAY_SIZE(ov9740_resolutions); i++)
- if ((ov9740_resolutions[i].width >= *width) &&
- (ov9740_resolutions[i].height >= *height)) {
- *width = ov9740_resolutions[i].width;
- *height = ov9740_resolutions[i].height;
- return;
- }
+ /* Max resolution is 1280x720 (720p). */
+ if (*width > OV9740_MAX_WIDTH)
+ *width = OV9740_MAX_WIDTH;
- *width = ov9740_resolutions[OV9740_720P].width;
- *height = ov9740_resolutions[OV9740_720P].height;
+ if (*height > OV9740_MAX_HEIGHT)
+ *height = OV9740_MAX_HEIGHT;
}
/* Setup registers according to resolution and color encoding */
-static int ov9740_set_res(struct i2c_client *client, u32 width)
+static int ov9740_set_res(struct i2c_client *client, u32 width, u32 height)
{
+ u32 x_start;
+ u32 y_start;
+ u32 x_end;
+ u32 y_end;
+ bool scaling = 0;
+ u32 scale_input_x;
+ u32 scale_input_y;
int ret;
- /* select register configuration for given resolution */
- if (width == ov9740_resolutions[OV9740_VGA].width) {
- dev_dbg(&client->dev, "Setting image size to 640x480\n");
- ret = ov9740_reg_write_array(client, ov9740_regs_vga,
- ARRAY_SIZE(ov9740_regs_vga));
- } else if (width == ov9740_resolutions[OV9740_720P].width) {
- dev_dbg(&client->dev, "Setting image size to 1280x720\n");
- ret = ov9740_reg_write_array(client, ov9740_regs_720p,
- ARRAY_SIZE(ov9740_regs_720p));
+ if ((width != OV9740_MAX_WIDTH) || (height != OV9740_MAX_HEIGHT))
+ scaling = 1;
+
+ /*
+ * Try to use as much of the sensor area as possible when supporting
+ * smaller resolutions. Depending on the aspect ratio of the
+ * chosen resolution, we can either use the full width of the sensor,
+ * or the full height of the sensor (or both if the aspect ratio is
+ * the same as 1280x720.
+ */
+ if ((OV9740_MAX_WIDTH * height) > (OV9740_MAX_HEIGHT * width)) {
+ scale_input_x = (OV9740_MAX_HEIGHT * width) / height;
+ scale_input_y = OV9740_MAX_HEIGHT;
} else {
- dev_err(&client->dev, "Failed to select resolution!\n");
- return -EINVAL;
+ scale_input_x = OV9740_MAX_WIDTH;
+ scale_input_y = (OV9740_MAX_WIDTH * height) / width;
}
+ /* These describe the area of the sensor to use. */
+ x_start = (OV9740_MAX_WIDTH - scale_input_x) / 2;
+ y_start = (OV9740_MAX_HEIGHT - scale_input_y) / 2;
+ x_end = x_start + scale_input_x - 1;
+ y_end = y_start + scale_input_y - 1;
+
+ ret = ov9740_reg_write(client, OV9740_X_ADDR_START_HI, x_start >> 8);
+ if (ret)
+ goto done;
+ ret = ov9740_reg_write(client, OV9740_X_ADDR_START_LO, x_start & 0xff);
+ if (ret)
+ goto done;
+ ret = ov9740_reg_write(client, OV9740_Y_ADDR_START_HI, y_start >> 8);
+ if (ret)
+ goto done;
+ ret = ov9740_reg_write(client, OV9740_Y_ADDR_START_LO, y_start & 0xff);
+ if (ret)
+ goto done;
+
+ ret = ov9740_reg_write(client, OV9740_X_ADDR_END_HI, x_end >> 8);
+ if (ret)
+ goto done;
+ ret = ov9740_reg_write(client, OV9740_X_ADDR_END_LO, x_end & 0xff);
+ if (ret)
+ goto done;
+ ret = ov9740_reg_write(client, OV9740_Y_ADDR_END_HI, y_end >> 8);
+ if (ret)
+ goto done;
+ ret = ov9740_reg_write(client, OV9740_Y_ADDR_END_LO, y_end & 0xff);
+ if (ret)
+ goto done;
+
+ ret = ov9740_reg_write(client, OV9740_X_OUTPUT_SIZE_HI, width >> 8);
+ if (ret)
+ goto done;
+ ret = ov9740_reg_write(client, OV9740_X_OUTPUT_SIZE_LO, width & 0xff);
+ if (ret)
+ goto done;
+ ret = ov9740_reg_write(client, OV9740_Y_OUTPUT_SIZE_HI, height >> 8);
+ if (ret)
+ goto done;
+ ret = ov9740_reg_write(client, OV9740_Y_OUTPUT_SIZE_LO, height & 0xff);
+ if (ret)
+ goto done;
+
+ ret = ov9740_reg_write(client, OV9740_ISP_CTRL1E, scale_input_x >> 8);
+ if (ret)
+ goto done;
+ ret = ov9740_reg_write(client, OV9740_ISP_CTRL1F, scale_input_x & 0xff);
+ if (ret)
+ goto done;
+ ret = ov9740_reg_write(client, OV9740_ISP_CTRL20, scale_input_y >> 8);
+ if (ret)
+ goto done;
+ ret = ov9740_reg_write(client, OV9740_ISP_CTRL21, scale_input_y & 0xff);
+ if (ret)
+ goto done;
+
+ ret = ov9740_reg_write(client, OV9740_VFIFO_READ_START_HI,
+ (scale_input_x - width) >> 8);
+ if (ret)
+ goto done;
+ ret = ov9740_reg_write(client, OV9740_VFIFO_READ_START_LO,
+ (scale_input_x - width) & 0xff);
+ if (ret)
+ goto done;
+
+ ret = ov9740_reg_write(client, OV9740_ISP_CTRL00, 0xff);
+ if (ret)
+ goto done;
+ ret = ov9740_reg_write(client, OV9740_ISP_CTRL01, 0xef |
+ (scaling << 4));
+ if (ret)
+ goto done;
+ ret = ov9740_reg_write(client, OV9740_ISP_CTRL03, 0xff);
+
+done:
return ret;
}
@@ -787,7 +805,7 @@ static int ov9740_s_fmt(struct v4l2_subdev *sd,
if (ret < 0)
return ret;
- ret = ov9740_set_res(client, mf->width);
+ ret = ov9740_set_res(client, mf->width, mf->height);
if (ret < 0)
return ret;
@@ -824,8 +842,8 @@ static int ov9740_cropcap(struct v4l2_subdev *sd, struct v4l2_cropcap *a)
{
a->bounds.left = 0;
a->bounds.top = 0;
- a->bounds.width = ov9740_resolutions[OV9740_720P].width;
- a->bounds.height = ov9740_resolutions[OV9740_720P].height;
+ a->bounds.width = OV9740_MAX_WIDTH;
+ a->bounds.height = OV9740_MAX_HEIGHT;
a->defrect = a->bounds;
a->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
a->pixelaspect.numerator = 1;
@@ -838,8 +856,8 @@ static int ov9740_g_crop(struct v4l2_subdev *sd, struct v4l2_crop *a)
{
a->c.left = 0;
a->c.top = 0;
- a->c.width = ov9740_resolutions[OV9740_720P].width;
- a->c.height = ov9740_resolutions[OV9740_720P].height;
+ a->c.width = OV9740_MAX_WIDTH;
+ a->c.height = OV9740_MAX_HEIGHT;
a->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
return 0;
--
1.7.5.4
From: Andrew Chew <[email protected]>
This is to avoid needing a forward declaration when ov9740_s_power() (in the
subsequent patch) calls ov9740_s_fmt().
Signed-off-by: Andrew Chew <[email protected]>
---
drivers/media/video/ov9740.c | 186 +++++++++++++++++++++---------------------
1 files changed, 93 insertions(+), 93 deletions(-)
diff --git a/drivers/media/video/ov9740.c b/drivers/media/video/ov9740.c
index decd706..cd63eaa 100644
--- a/drivers/media/video/ov9740.c
+++ b/drivers/media/video/ov9740.c
@@ -573,90 +573,6 @@ static unsigned long ov9740_query_bus_param(struct soc_camera_device *icd)
return soc_camera_apply_sensor_flags(icl, flags);
}
-/* Get status of additional camera capabilities */
-static int ov9740_g_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
-{
- struct ov9740_priv *priv = to_ov9740(sd);
-
- switch (ctrl->id) {
- case V4L2_CID_VFLIP:
- ctrl->value = priv->flag_vflip;
- break;
- case V4L2_CID_HFLIP:
- ctrl->value = priv->flag_hflip;
- break;
- default:
- return -EINVAL;
- }
-
- return 0;
-}
-
-/* Set status of additional camera capabilities */
-static int ov9740_s_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
-{
- struct ov9740_priv *priv = to_ov9740(sd);
-
- switch (ctrl->id) {
- case V4L2_CID_VFLIP:
- priv->flag_vflip = ctrl->value;
- break;
- case V4L2_CID_HFLIP:
- priv->flag_hflip = ctrl->value;
- break;
- default:
- return -EINVAL;
- }
-
- return 0;
-}
-
-/* Get chip identification */
-static int ov9740_g_chip_ident(struct v4l2_subdev *sd,
- struct v4l2_dbg_chip_ident *id)
-{
- struct ov9740_priv *priv = to_ov9740(sd);
-
- id->ident = priv->ident;
- id->revision = priv->revision;
-
- return 0;
-}
-
-#ifdef CONFIG_VIDEO_ADV_DEBUG
-static int ov9740_get_register(struct v4l2_subdev *sd,
- struct v4l2_dbg_register *reg)
-{
- struct i2c_client *client = v4l2_get_subdevdata(sd);
- int ret;
- u8 val;
-
- if (reg->reg & ~0xffff)
- return -EINVAL;
-
- reg->size = 2;
-
- ret = ov9740_reg_read(client, reg->reg, &val);
- if (ret)
- return ret;
-
- reg->val = (__u64)val;
-
- return ret;
-}
-
-static int ov9740_set_register(struct v4l2_subdev *sd,
- struct v4l2_dbg_register *reg)
-{
- struct i2c_client *client = v4l2_get_subdevdata(sd);
-
- if (reg->reg & ~0xffff || reg->val & ~0xff)
- return -EINVAL;
-
- return ov9740_reg_write(client, reg->reg, reg->val);
-}
-#endif
-
/* select nearest higher resolution for capture */
static void ov9740_res_roundup(u32 *width, u32 *height)
{
@@ -863,6 +779,90 @@ static int ov9740_g_crop(struct v4l2_subdev *sd, struct v4l2_crop *a)
return 0;
}
+/* Get status of additional camera capabilities */
+static int ov9740_g_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
+{
+ struct ov9740_priv *priv = to_ov9740(sd);
+
+ switch (ctrl->id) {
+ case V4L2_CID_VFLIP:
+ ctrl->value = priv->flag_vflip;
+ break;
+ case V4L2_CID_HFLIP:
+ ctrl->value = priv->flag_hflip;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+/* Set status of additional camera capabilities */
+static int ov9740_s_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
+{
+ struct ov9740_priv *priv = to_ov9740(sd);
+
+ switch (ctrl->id) {
+ case V4L2_CID_VFLIP:
+ priv->flag_vflip = ctrl->value;
+ break;
+ case V4L2_CID_HFLIP:
+ priv->flag_hflip = ctrl->value;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+/* Get chip identification */
+static int ov9740_g_chip_ident(struct v4l2_subdev *sd,
+ struct v4l2_dbg_chip_ident *id)
+{
+ struct ov9740_priv *priv = to_ov9740(sd);
+
+ id->ident = priv->ident;
+ id->revision = priv->revision;
+
+ return 0;
+}
+
+#ifdef CONFIG_VIDEO_ADV_DEBUG
+static int ov9740_get_register(struct v4l2_subdev *sd,
+ struct v4l2_dbg_register *reg)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(sd);
+ int ret;
+ u8 val;
+
+ if (reg->reg & ~0xffff)
+ return -EINVAL;
+
+ reg->size = 2;
+
+ ret = ov9740_reg_read(client, reg->reg, &val);
+ if (ret)
+ return ret;
+
+ reg->val = (__u64)val;
+
+ return ret;
+}
+
+static int ov9740_set_register(struct v4l2_subdev *sd,
+ struct v4l2_dbg_register *reg)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(sd);
+
+ if (reg->reg & ~0xffff || reg->val & ~0xff)
+ return -EINVAL;
+
+ return ov9740_reg_write(client, reg->reg, reg->val);
+}
+#endif
+
static int ov9740_video_probe(struct soc_camera_device *icd,
struct i2c_client *client)
{
@@ -929,6 +929,15 @@ static struct soc_camera_ops ov9740_ops = {
.num_controls = ARRAY_SIZE(ov9740_controls),
};
+static struct v4l2_subdev_video_ops ov9740_video_ops = {
+ .s_stream = ov9740_s_stream,
+ .s_mbus_fmt = ov9740_s_fmt,
+ .try_mbus_fmt = ov9740_try_fmt,
+ .enum_mbus_fmt = ov9740_enum_fmt,
+ .cropcap = ov9740_cropcap,
+ .g_crop = ov9740_g_crop,
+};
+
static struct v4l2_subdev_core_ops ov9740_core_ops = {
.g_ctrl = ov9740_g_ctrl,
.s_ctrl = ov9740_s_ctrl,
@@ -939,15 +948,6 @@ static struct v4l2_subdev_core_ops ov9740_core_ops = {
#endif
};
-static struct v4l2_subdev_video_ops ov9740_video_ops = {
- .s_stream = ov9740_s_stream,
- .s_mbus_fmt = ov9740_s_fmt,
- .try_mbus_fmt = ov9740_try_fmt,
- .enum_mbus_fmt = ov9740_enum_fmt,
- .cropcap = ov9740_cropcap,
- .g_crop = ov9740_g_crop,
-};
-
static struct v4l2_subdev_ops ov9740_subdev_ops = {
.core = &ov9740_core_ops,
.video = &ov9740_video_ops,
--
1.7.5.4
From: Andrew Chew <[email protected]>
On suspend, remember whether we are streaming or not, and at what frame format,
so that on resume, we can start streaming again.
Signed-off-by: Andrew Chew <[email protected]>
---
drivers/media/video/ov9740.c | 28 ++++++++++++++++++++++++++++
1 files changed, 28 insertions(+), 0 deletions(-)
diff --git a/drivers/media/video/ov9740.c b/drivers/media/video/ov9740.c
index cd63eaa..ede48f2 100644
--- a/drivers/media/video/ov9740.c
+++ b/drivers/media/video/ov9740.c
@@ -201,6 +201,10 @@ struct ov9740_priv {
bool flag_vflip;
bool flag_hflip;
+
+ /* For suspend/resume. */
+ struct v4l2_mbus_framefmt current_mf;
+ bool current_enable;
};
static const struct ov9740_reg ov9740_defaults[] = {
@@ -551,6 +555,8 @@ static int ov9740_s_stream(struct v4l2_subdev *sd, int enable)
0x00);
}
+ priv->current_enable = enable;
+
return ret;
}
@@ -702,6 +708,7 @@ static int ov9740_s_fmt(struct v4l2_subdev *sd,
struct v4l2_mbus_framefmt *mf)
{
struct i2c_client *client = v4l2_get_subdevdata(sd);
+ struct ov9740_priv *priv = to_ov9740(sd);
enum v4l2_colorspace cspace;
enum v4l2_mbus_pixelcode code = mf->code;
int ret;
@@ -728,6 +735,8 @@ static int ov9740_s_fmt(struct v4l2_subdev *sd,
mf->code = code;
mf->colorspace = cspace;
+ memcpy(&priv->current_mf, mf, sizeof(struct v4l2_mbus_framefmt));
+
return ret;
}
@@ -829,6 +838,24 @@ static int ov9740_g_chip_ident(struct v4l2_subdev *sd,
return 0;
}
+static int ov9740_s_power(struct v4l2_subdev *sd, int on)
+{
+ struct ov9740_priv *priv = to_ov9740(sd);
+
+ if (!priv->current_enable)
+ return 0;
+
+ if (on) {
+ ov9740_s_fmt(sd, &priv->current_mf);
+ ov9740_s_stream(sd, priv->current_enable);
+ } else {
+ ov9740_s_stream(sd, 0);
+ priv->current_enable = true;
+ }
+
+ return 0;
+}
+
#ifdef CONFIG_VIDEO_ADV_DEBUG
static int ov9740_get_register(struct v4l2_subdev *sd,
struct v4l2_dbg_register *reg)
@@ -942,6 +969,7 @@ static struct v4l2_subdev_core_ops ov9740_core_ops = {
.g_ctrl = ov9740_g_ctrl,
.s_ctrl = ov9740_s_ctrl,
.g_chip_ident = ov9740_g_chip_ident,
+ .s_power = ov9740_s_power,
#ifdef CONFIG_VIDEO_ADV_DEBUG
.g_register = ov9740_get_register,
.s_register = ov9740_set_register,
--
1.7.5.4
On Thu, 23 Jun 2011, [email protected] wrote:
> From: Andrew Chew <[email protected]>
>
> Made all hex number casing use lower-case throughout the entire driver
> for consistency.
>
> Signed-off-by: Andrew Chew <[email protected]>
All look good to me now, thanks! Queued for 3.1.
Regards
Guennadi
> ---
> drivers/media/video/ov9740.c | 111 +++++++++++++++++++++---------------------
> 1 files changed, 55 insertions(+), 56 deletions(-)
>
> diff --git a/drivers/media/video/ov9740.c b/drivers/media/video/ov9740.c
> index 4d4ee4f..96811e4 100644
> --- a/drivers/media/video/ov9740.c
> +++ b/drivers/media/video/ov9740.c
> @@ -44,12 +44,12 @@
> #define OV9740_Y_ADDR_START_LO 0x0347
> #define OV9740_X_ADDR_END_HI 0x0348
> #define OV9740_X_ADDR_END_LO 0x0349
> -#define OV9740_Y_ADDR_END_HI 0x034A
> -#define OV9740_Y_ADDR_END_LO 0x034B
> -#define OV9740_X_OUTPUT_SIZE_HI 0x034C
> -#define OV9740_X_OUTPUT_SIZE_LO 0x034D
> -#define OV9740_Y_OUTPUT_SIZE_HI 0x034E
> -#define OV9740_Y_OUTPUT_SIZE_LO 0x034F
> +#define OV9740_Y_ADDR_END_HI 0x034a
> +#define OV9740_Y_ADDR_END_LO 0x034b
> +#define OV9740_X_OUTPUT_SIZE_HI 0x034c
> +#define OV9740_X_OUTPUT_SIZE_LO 0x034d
> +#define OV9740_Y_OUTPUT_SIZE_HI 0x034e
> +#define OV9740_Y_OUTPUT_SIZE_LO 0x034f
>
> /* IO Control Registers */
> #define OV9740_IO_CREL00 0x3002
> @@ -89,28 +89,28 @@
> #define OV9740_TIMING_CTRL35 0x3835
>
> /* Banding Filter */
> -#define OV9740_AEC_MAXEXPO_60_H 0x3A02
> -#define OV9740_AEC_MAXEXPO_60_L 0x3A03
> -#define OV9740_AEC_B50_STEP_HI 0x3A08
> -#define OV9740_AEC_B50_STEP_LO 0x3A09
> -#define OV9740_AEC_B60_STEP_HI 0x3A0A
> -#define OV9740_AEC_B60_STEP_LO 0x3A0B
> -#define OV9740_AEC_CTRL0D 0x3A0D
> -#define OV9740_AEC_CTRL0E 0x3A0E
> -#define OV9740_AEC_MAXEXPO_50_H 0x3A14
> -#define OV9740_AEC_MAXEXPO_50_L 0x3A15
> +#define OV9740_AEC_MAXEXPO_60_H 0x3a02
> +#define OV9740_AEC_MAXEXPO_60_L 0x3a03
> +#define OV9740_AEC_B50_STEP_HI 0x3a08
> +#define OV9740_AEC_B50_STEP_LO 0x3a09
> +#define OV9740_AEC_B60_STEP_HI 0x3a0a
> +#define OV9740_AEC_B60_STEP_LO 0x3a0b
> +#define OV9740_AEC_CTRL0D 0x3a0d
> +#define OV9740_AEC_CTRL0E 0x3a0e
> +#define OV9740_AEC_MAXEXPO_50_H 0x3a14
> +#define OV9740_AEC_MAXEXPO_50_L 0x3a15
>
> /* AEC/AGC Control */
> #define OV9740_AEC_ENABLE 0x3503
> -#define OV9740_GAIN_CEILING_01 0x3A18
> -#define OV9740_GAIN_CEILING_02 0x3A19
> -#define OV9740_AEC_HI_THRESHOLD 0x3A11
> -#define OV9740_AEC_3A1A 0x3A1A
> -#define OV9740_AEC_CTRL1B_WPT2 0x3A1B
> -#define OV9740_AEC_CTRL0F_WPT 0x3A0F
> -#define OV9740_AEC_CTRL10_BPT 0x3A10
> -#define OV9740_AEC_CTRL1E_BPT2 0x3A1E
> -#define OV9740_AEC_LO_THRESHOLD 0x3A1F
> +#define OV9740_GAIN_CEILING_01 0x3a18
> +#define OV9740_GAIN_CEILING_02 0x3a19
> +#define OV9740_AEC_HI_THRESHOLD 0x3a11
> +#define OV9740_AEC_3A1A 0x3a1a
> +#define OV9740_AEC_CTRL1B_WPT2 0x3a1b
> +#define OV9740_AEC_CTRL0F_WPT 0x3a0f
> +#define OV9740_AEC_CTRL10_BPT 0x3a10
> +#define OV9740_AEC_CTRL1E_BPT2 0x3a1e
> +#define OV9740_AEC_LO_THRESHOLD 0x3a1f
>
> /* BLC Control */
> #define OV9740_BLC_AUTO_ENABLE 0x4002
> @@ -132,7 +132,7 @@
> #define OV9740_VT_SYS_CLK_DIV 0x0303
> #define OV9740_VT_PIX_CLK_DIV 0x0301
> #define OV9740_PLL_CTRL3010 0x3010
> -#define OV9740_VFIFO_CTRL00 0x460E
> +#define OV9740_VFIFO_CTRL00 0x460e
>
> /* ISP Control */
> #define OV9740_ISP_CTRL00 0x5000
> @@ -141,9 +141,9 @@
> #define OV9740_ISP_CTRL05 0x5005
> #define OV9740_ISP_CTRL12 0x5012
> #define OV9740_ISP_CTRL19 0x5019
> -#define OV9740_ISP_CTRL1A 0x501A
> -#define OV9740_ISP_CTRL1E 0x501E
> -#define OV9740_ISP_CTRL1F 0x501F
> +#define OV9740_ISP_CTRL1A 0x501a
> +#define OV9740_ISP_CTRL1E 0x501e
> +#define OV9740_ISP_CTRL1F 0x501f
> #define OV9740_ISP_CTRL20 0x5020
> #define OV9740_ISP_CTRL21 0x5021
>
> @@ -158,12 +158,12 @@
> #define OV9740_AWB_ADV_CTRL04 0x5187
> #define OV9740_AWB_ADV_CTRL05 0x5188
> #define OV9740_AWB_ADV_CTRL06 0x5189
> -#define OV9740_AWB_ADV_CTRL07 0x518A
> -#define OV9740_AWB_ADV_CTRL08 0x518B
> -#define OV9740_AWB_ADV_CTRL09 0x518C
> -#define OV9740_AWB_ADV_CTRL10 0x518D
> -#define OV9740_AWB_ADV_CTRL11 0x518E
> -#define OV9740_AWB_CTRL0F 0x518F
> +#define OV9740_AWB_ADV_CTRL07 0x518a
> +#define OV9740_AWB_ADV_CTRL08 0x518b
> +#define OV9740_AWB_ADV_CTRL09 0x518c
> +#define OV9740_AWB_ADV_CTRL10 0x518d
> +#define OV9740_AWB_ADV_CTRL11 0x518e
> +#define OV9740_AWB_CTRL0F 0x518f
> #define OV9740_AWB_CTRL10 0x5190
> #define OV9740_AWB_CTRL11 0x5191
> #define OV9740_AWB_CTRL12 0x5192
> @@ -241,36 +241,36 @@ static const struct ov9740_reg ov9740_defaults[] = {
> /* Un-documented OV9740 registers */
> { 0x5800, 0x29 }, { 0x5801, 0x25 }, { 0x5802, 0x20 }, { 0x5803, 0x21 },
> { 0x5804, 0x26 }, { 0x5805, 0x2e }, { 0x5806, 0x11 }, { 0x5807, 0x0c },
> - { 0x5808, 0x09 }, { 0x5809, 0x0a }, { 0x580A, 0x0e }, { 0x580B, 0x16 },
> - { 0x580C, 0x06 }, { 0x580D, 0x02 }, { 0x580E, 0x00 }, { 0x580F, 0x00 },
> + { 0x5808, 0x09 }, { 0x5809, 0x0a }, { 0x580a, 0x0e }, { 0x580b, 0x16 },
> + { 0x580c, 0x06 }, { 0x580d, 0x02 }, { 0x580e, 0x00 }, { 0x580f, 0x00 },
> { 0x5810, 0x04 }, { 0x5811, 0x0a }, { 0x5812, 0x05 }, { 0x5813, 0x02 },
> { 0x5814, 0x00 }, { 0x5815, 0x00 }, { 0x5816, 0x03 }, { 0x5817, 0x09 },
> - { 0x5818, 0x0f }, { 0x5819, 0x0a }, { 0x581A, 0x07 }, { 0x581B, 0x08 },
> - { 0x581C, 0x0b }, { 0x581D, 0x14 }, { 0x581E, 0x28 }, { 0x581F, 0x23 },
> + { 0x5818, 0x0f }, { 0x5819, 0x0a }, { 0x581a, 0x07 }, { 0x581b, 0x08 },
> + { 0x581c, 0x0b }, { 0x581d, 0x14 }, { 0x581e, 0x28 }, { 0x581f, 0x23 },
> { 0x5820, 0x1d }, { 0x5821, 0x1e }, { 0x5822, 0x24 }, { 0x5823, 0x2a },
> { 0x5824, 0x4f }, { 0x5825, 0x6f }, { 0x5826, 0x5f }, { 0x5827, 0x7f },
> - { 0x5828, 0x9f }, { 0x5829, 0x5f }, { 0x582A, 0x8f }, { 0x582B, 0x9e },
> - { 0x582C, 0x8f }, { 0x582D, 0x9f }, { 0x582E, 0x4f }, { 0x582F, 0x87 },
> + { 0x5828, 0x9f }, { 0x5829, 0x5f }, { 0x582a, 0x8f }, { 0x582b, 0x9e },
> + { 0x582c, 0x8f }, { 0x582d, 0x9f }, { 0x582e, 0x4f }, { 0x582f, 0x87 },
> { 0x5830, 0x86 }, { 0x5831, 0x97 }, { 0x5832, 0xae }, { 0x5833, 0x3f },
> { 0x5834, 0x8e }, { 0x5835, 0x7c }, { 0x5836, 0x7e }, { 0x5837, 0xaf },
> - { 0x5838, 0x8f }, { 0x5839, 0x8f }, { 0x583A, 0x9f }, { 0x583B, 0x7f },
> - { 0x583C, 0x5f },
> + { 0x5838, 0x8f }, { 0x5839, 0x8f }, { 0x583a, 0x9f }, { 0x583b, 0x7f },
> + { 0x583c, 0x5f },
>
> /* Y Gamma */
> { 0x5480, 0x07 }, { 0x5481, 0x18 }, { 0x5482, 0x2c }, { 0x5483, 0x4e },
> { 0x5484, 0x5e }, { 0x5485, 0x6b }, { 0x5486, 0x77 }, { 0x5487, 0x82 },
> - { 0x5488, 0x8c }, { 0x5489, 0x95 }, { 0x548A, 0xa4 }, { 0x548B, 0xb1 },
> - { 0x548C, 0xc6 }, { 0x548D, 0xd8 }, { 0x548E, 0xe9 },
> + { 0x5488, 0x8c }, { 0x5489, 0x95 }, { 0x548a, 0xa4 }, { 0x548b, 0xb1 },
> + { 0x548c, 0xc6 }, { 0x548d, 0xd8 }, { 0x548e, 0xe9 },
>
> /* UV Gamma */
> { 0x5490, 0x0f }, { 0x5491, 0xff }, { 0x5492, 0x0d }, { 0x5493, 0x05 },
> { 0x5494, 0x07 }, { 0x5495, 0x1a }, { 0x5496, 0x04 }, { 0x5497, 0x01 },
> - { 0x5498, 0x03 }, { 0x5499, 0x53 }, { 0x549A, 0x02 }, { 0x549B, 0xeb },
> - { 0x549C, 0x02 }, { 0x549D, 0xa0 }, { 0x549E, 0x02 }, { 0x549F, 0x67 },
> - { 0x54A0, 0x02 }, { 0x54A1, 0x3b }, { 0x54A2, 0x02 }, { 0x54A3, 0x18 },
> - { 0x54A4, 0x01 }, { 0x54A5, 0xe7 }, { 0x54A6, 0x01 }, { 0x54A7, 0xc3 },
> - { 0x54A8, 0x01 }, { 0x54A9, 0x94 }, { 0x54AA, 0x01 }, { 0x54AB, 0x72 },
> - { 0x54AC, 0x01 }, { 0x54AD, 0x57 },
> + { 0x5498, 0x03 }, { 0x5499, 0x53 }, { 0x549a, 0x02 }, { 0x549b, 0xeb },
> + { 0x549c, 0x02 }, { 0x549d, 0xa0 }, { 0x549e, 0x02 }, { 0x549f, 0x67 },
> + { 0x54a0, 0x02 }, { 0x54a1, 0x3b }, { 0x54a2, 0x02 }, { 0x54a3, 0x18 },
> + { 0x54a4, 0x01 }, { 0x54a5, 0xe7 }, { 0x54a6, 0x01 }, { 0x54a7, 0xc3 },
> + { 0x54a8, 0x01 }, { 0x54a9, 0x94 }, { 0x54aa, 0x01 }, { 0x54ab, 0x72 },
> + { 0x54ac, 0x01 }, { 0x54ad, 0x57 },
>
> /* AWB */
> { OV9740_AWB_CTRL00, 0xf0 },
> @@ -296,18 +296,18 @@ static const struct ov9740_reg ov9740_defaults[] = {
> { OV9740_AWB_CTRL14, 0x00 },
>
> /* CIP */
> - { 0x530D, 0x12 },
> + { 0x530d, 0x12 },
>
> /* CMX */
> { 0x5380, 0x01 }, { 0x5381, 0x00 }, { 0x5382, 0x00 }, { 0x5383, 0x17 },
> { 0x5384, 0x00 }, { 0x5385, 0x01 }, { 0x5386, 0x00 }, { 0x5387, 0x00 },
> - { 0x5388, 0x00 }, { 0x5389, 0xe0 }, { 0x538A, 0x00 }, { 0x538B, 0x20 },
> - { 0x538C, 0x00 }, { 0x538D, 0x00 }, { 0x538E, 0x00 }, { 0x538F, 0x16 },
> + { 0x5388, 0x00 }, { 0x5389, 0xe0 }, { 0x538a, 0x00 }, { 0x538b, 0x20 },
> + { 0x538c, 0x00 }, { 0x538d, 0x00 }, { 0x538e, 0x00 }, { 0x538f, 0x16 },
> { 0x5390, 0x00 }, { 0x5391, 0x9c }, { 0x5392, 0x00 }, { 0x5393, 0xa0 },
> { 0x5394, 0x18 },
>
> /* 50/60 Detection */
> - { 0x3C0A, 0x9c }, { 0x3C0B, 0x3f },
> + { 0x3c0a, 0x9c }, { 0x3c0b, 0x3f },
>
> /* Output Select */
> { OV9740_IO_OUTPUT_SEL01, 0x00 },
> @@ -909,7 +909,6 @@ static struct v4l2_subdev_core_ops ov9740_core_ops = {
> .g_register = ov9740_get_register,
> .s_register = ov9740_set_register,
> #endif
> -
> };
>
> static struct v4l2_subdev_video_ops ov9740_video_ops = {
> --
> 1.7.5.4
>
---
Guennadi Liakhovetski, Ph.D.
Freelance Open-Source Software Developer
http://www.open-technology.de/
Hi Andrew,
On Friday 24 June 2011 01:19:41 [email protected] wrote:
> From: Andrew Chew <[email protected]>
>
> Based on vendor feedback, should issue a software reset at start of day.
>
> Also, OV9740_ANALOG_CTRL15 needs to be changed so the sensor does not begin
> streaming until it is ready (otherwise, results in a nonsense frame for the
> initial frame).
>
> Added a comment on using discontinuous clock.
>
> Finally, OV9740_ISP_CTRL19 needs to be changed to really use YUYV ordering
> (the previous value was for VYUY).
I've never liked those magic values. Fixing the whole driver to document
everything in one go might be too much work, but what about documenting new
registers, and especially their contents, as you add support for them ?
> Signed-off-by: Andrew Chew <[email protected]>
> ---
> drivers/media/video/ov9740.c | 10 +++++++++-
> 1 files changed, 9 insertions(+), 1 deletions(-)
>
> diff --git a/drivers/media/video/ov9740.c b/drivers/media/video/ov9740.c
> index d5c9061..72c6ac1d 100644
> --- a/drivers/media/video/ov9740.c
> +++ b/drivers/media/video/ov9740.c
> @@ -68,6 +68,7 @@
> #define OV9740_ANALOG_CTRL04 0x3604
> #define OV9740_ANALOG_CTRL10 0x3610
> #define OV9740_ANALOG_CTRL12 0x3612
> +#define OV9740_ANALOG_CTRL15 0x3615
> #define OV9740_ANALOG_CTRL20 0x3620
> #define OV9740_ANALOG_CTRL21 0x3621
> #define OV9740_ANALOG_CTRL22 0x3622
> @@ -222,6 +223,9 @@ struct ov9740_priv {
> };
>
> static const struct ov9740_reg ov9740_defaults[] = {
> + /* Software Reset */
> + { OV9740_SOFTWARE_RESET, 0x01 },
> +
> /* Banding Filter */
> { OV9740_AEC_B50_STEP_HI, 0x00 },
> { OV9740_AEC_B50_STEP_LO, 0xe8 },
> @@ -333,6 +337,7 @@ static const struct ov9740_reg ov9740_defaults[] = {
> { OV9740_ANALOG_CTRL10, 0xa1 },
> { OV9740_ANALOG_CTRL12, 0x24 },
> { OV9740_ANALOG_CTRL22, 0x9f },
> + { OV9740_ANALOG_CTRL15, 0xf0 },
>
> /* Sensor Control */
> { OV9740_SENSOR_CTRL03, 0x42 },
> @@ -385,7 +390,7 @@ static const struct ov9740_reg ov9740_defaults[] = {
> { OV9740_LN_LENGTH_PCK_LO, 0x62 },
>
> /* MIPI Control */
> - { OV9740_MIPI_CTRL00, 0x44 },
> + { OV9740_MIPI_CTRL00, 0x44 }, /* 0x64 for discontinuous clk */
You should instead add
#define OV9740_MIPI_CTRL00_DISC_CLK 0x20
just below the OV9740_MIPI_CTRL00 definition, with a comment to explain what
it's for (and rename CTRL00 to something more meaningful if possible). Same
for the other registers you modify.
> { OV9740_MIPI_3837, 0x01 },
> { OV9740_MIPI_CTRL01, 0x0f },
> { OV9740_MIPI_CTRL03, 0x05 },
> @@ -393,6 +398,9 @@ static const struct ov9740_reg ov9740_defaults[] = {
> { OV9740_VFIFO_RD_CTRL, 0x16 },
> { OV9740_MIPI_CTRL_3012, 0x70 },
> { OV9740_SC_CMMM_MIPI_CTR, 0x01 },
> +
> + /* YUYV order */
> + { OV9740_ISP_CTRL19, 0x02 },
> };
>
> static const struct ov9740_reg ov9740_regs_vga[] = {
--
Regards,
Laurent Pinchart
Hi Andrew,
Thanks for the patch.
On Friday 24 June 2011 01:19:42 [email protected] wrote:
> From: Andrew Chew <[email protected]>
>
> Derive resolution-dependent register settings programmatically.
>
> Signed-off-by: Andrew Chew <[email protected]>
> ---
> drivers/media/video/ov9740.c | 210
> +++++++++++++++++++++++------------------- 1 files changed, 114
> insertions(+), 96 deletions(-)
>
> diff --git a/drivers/media/video/ov9740.c b/drivers/media/video/ov9740.c
> index 72c6ac1d..decd706 100644
> --- a/drivers/media/video/ov9740.c
> +++ b/drivers/media/video/ov9740.c
> @@ -181,27 +181,8 @@
> #define OV9740_MIPI_CTRL_3012 0x3012
> #define OV9740_SC_CMMM_MIPI_CTR 0x3014
>
> -/* supported resolutions */
> -enum {
> - OV9740_VGA,
> - OV9740_720P,
> -};
> -
> -struct ov9740_resolution {
> - unsigned int width;
> - unsigned int height;
> -};
> -
> -static struct ov9740_resolution ov9740_resolutions[] = {
> - [OV9740_VGA] = {
> - .width = 640,
> - .height = 480,
> - },
> - [OV9740_720P] = {
> - .width = 1280,
> - .height = 720,
> - },
> -};
> +#define OV9740_MAX_WIDTH 1280
> +#define OV9740_MAX_HEIGHT 720
>
> /* Misc. structures */
> struct ov9740_reg {
> @@ -403,54 +384,6 @@ static const struct ov9740_reg ov9740_defaults[] = {
> { OV9740_ISP_CTRL19, 0x02 },
> };
>
> -static const struct ov9740_reg ov9740_regs_vga[] = {
> - { OV9740_X_ADDR_START_HI, 0x00 },
> - { OV9740_X_ADDR_START_LO, 0xa0 },
> - { OV9740_Y_ADDR_START_HI, 0x00 },
> - { OV9740_Y_ADDR_START_LO, 0x00 },
> - { OV9740_X_ADDR_END_HI, 0x04 },
> - { OV9740_X_ADDR_END_LO, 0x63 },
> - { OV9740_Y_ADDR_END_HI, 0x02 },
> - { OV9740_Y_ADDR_END_LO, 0xd3 },
> - { OV9740_X_OUTPUT_SIZE_HI, 0x02 },
> - { OV9740_X_OUTPUT_SIZE_LO, 0x80 },
> - { OV9740_Y_OUTPUT_SIZE_HI, 0x01 },
> - { OV9740_Y_OUTPUT_SIZE_LO, 0xe0 },
> - { OV9740_ISP_CTRL1E, 0x03 },
> - { OV9740_ISP_CTRL1F, 0xc0 },
> - { OV9740_ISP_CTRL20, 0x02 },
> - { OV9740_ISP_CTRL21, 0xd0 },
> - { OV9740_VFIFO_READ_START_HI, 0x01 },
> - { OV9740_VFIFO_READ_START_LO, 0x40 },
> - { OV9740_ISP_CTRL00, 0xff },
> - { OV9740_ISP_CTRL01, 0xff },
> - { OV9740_ISP_CTRL03, 0xff },
> -};
> -
> -static const struct ov9740_reg ov9740_regs_720p[] = {
> - { OV9740_X_ADDR_START_HI, 0x00 },
> - { OV9740_X_ADDR_START_LO, 0x00 },
> - { OV9740_Y_ADDR_START_HI, 0x00 },
> - { OV9740_Y_ADDR_START_LO, 0x00 },
> - { OV9740_X_ADDR_END_HI, 0x05 },
> - { OV9740_X_ADDR_END_LO, 0x03 },
> - { OV9740_Y_ADDR_END_HI, 0x02 },
> - { OV9740_Y_ADDR_END_LO, 0xd3 },
> - { OV9740_X_OUTPUT_SIZE_HI, 0x05 },
> - { OV9740_X_OUTPUT_SIZE_LO, 0x00 },
> - { OV9740_Y_OUTPUT_SIZE_HI, 0x02 },
> - { OV9740_Y_OUTPUT_SIZE_LO, 0xd0 },
> - { OV9740_ISP_CTRL1E, 0x05 },
> - { OV9740_ISP_CTRL1F, 0x00 },
> - { OV9740_ISP_CTRL20, 0x02 },
> - { OV9740_ISP_CTRL21, 0xd0 },
> - { OV9740_VFIFO_READ_START_HI, 0x02 },
> - { OV9740_VFIFO_READ_START_LO, 0x30 },
> - { OV9740_ISP_CTRL00, 0xff },
> - { OV9740_ISP_CTRL01, 0xef },
> - { OV9740_ISP_CTRL03, 0xff },
> -};
> -
> static enum v4l2_mbus_pixelcode ov9740_codes[] = {
> V4L2_MBUS_FMT_YUYV8_2X8,
> };
> @@ -727,39 +660,124 @@ static int ov9740_set_register(struct v4l2_subdev
> *sd, /* select nearest higher resolution for capture */
> static void ov9740_res_roundup(u32 *width, u32 *height)
> {
> - int i;
> + /* Width must be a multiple of 4 pixels. */
> + *width = ALIGN(*width, 4);
>
> - for (i = 0; i < ARRAY_SIZE(ov9740_resolutions); i++)
> - if ((ov9740_resolutions[i].width >= *width) &&
> - (ov9740_resolutions[i].height >= *height)) {
> - *width = ov9740_resolutions[i].width;
> - *height = ov9740_resolutions[i].height;
> - return;
> - }
> + /* Max resolution is 1280x720 (720p). */
> + if (*width > OV9740_MAX_WIDTH)
> + *width = OV9740_MAX_WIDTH;
>
> - *width = ov9740_resolutions[OV9740_720P].width;
> - *height = ov9740_resolutions[OV9740_720P].height;
> + if (*height > OV9740_MAX_HEIGHT)
> + *height = OV9740_MAX_HEIGHT;
> }
>
> /* Setup registers according to resolution and color encoding */
> -static int ov9740_set_res(struct i2c_client *client, u32 width)
> +static int ov9740_set_res(struct i2c_client *client, u32 width, u32
> height) {
> + u32 x_start;
> + u32 y_start;
> + u32 x_end;
> + u32 y_end;
> + bool scaling = 0;
> + u32 scale_input_x;
> + u32 scale_input_y;
> int ret;
>
> - /* select register configuration for given resolution */
> - if (width == ov9740_resolutions[OV9740_VGA].width) {
> - dev_dbg(&client->dev, "Setting image size to 640x480\n");
> - ret = ov9740_reg_write_array(client, ov9740_regs_vga,
> - ARRAY_SIZE(ov9740_regs_vga));
> - } else if (width == ov9740_resolutions[OV9740_720P].width) {
> - dev_dbg(&client->dev, "Setting image size to 1280x720\n");
> - ret = ov9740_reg_write_array(client, ov9740_regs_720p,
> - ARRAY_SIZE(ov9740_regs_720p));
> + if ((width != OV9740_MAX_WIDTH) || (height != OV9740_MAX_HEIGHT))
> + scaling = 1;
> +
> + /*
> + * Try to use as much of the sensor area as possible when supporting
> + * smaller resolutions. Depending on the aspect ratio of the
> + * chosen resolution, we can either use the full width of the sensor,
> + * or the full height of the sensor (or both if the aspect ratio is
> + * the same as 1280x720.
> + */
> + if ((OV9740_MAX_WIDTH * height) > (OV9740_MAX_HEIGHT * width)) {
> + scale_input_x = (OV9740_MAX_HEIGHT * width) / height;
> + scale_input_y = OV9740_MAX_HEIGHT;
> } else {
> - dev_err(&client->dev, "Failed to select resolution!\n");
> - return -EINVAL;
> + scale_input_x = OV9740_MAX_WIDTH;
> + scale_input_y = (OV9740_MAX_WIDTH * height) / width;
> }
>
> + /* These describe the area of the sensor to use. */
> + x_start = (OV9740_MAX_WIDTH - scale_input_x) / 2;
> + y_start = (OV9740_MAX_HEIGHT - scale_input_y) / 2;
> + x_end = x_start + scale_input_x - 1;
> + y_end = y_start + scale_input_y - 1;
> +
> + ret = ov9740_reg_write(client, OV9740_X_ADDR_START_HI, x_start >> 8);
> + if (ret)
> + goto done;
> + ret = ov9740_reg_write(client, OV9740_X_ADDR_START_LO, x_start & 0xff);
> + if (ret)
> + goto done;
> + ret = ov9740_reg_write(client, OV9740_Y_ADDR_START_HI, y_start >> 8);
> + if (ret)
> + goto done;
> + ret = ov9740_reg_write(client, OV9740_Y_ADDR_START_LO, y_start & 0xff);
> + if (ret)
> + goto done;
> +
> + ret = ov9740_reg_write(client, OV9740_X_ADDR_END_HI, x_end >> 8);
> + if (ret)
> + goto done;
> + ret = ov9740_reg_write(client, OV9740_X_ADDR_END_LO, x_end & 0xff);
> + if (ret)
> + goto done;
> + ret = ov9740_reg_write(client, OV9740_Y_ADDR_END_HI, y_end >> 8);
> + if (ret)
> + goto done;
> + ret = ov9740_reg_write(client, OV9740_Y_ADDR_END_LO, y_end & 0xff);
> + if (ret)
> + goto done;
> +
> + ret = ov9740_reg_write(client, OV9740_X_OUTPUT_SIZE_HI, width >> 8);
> + if (ret)
> + goto done;
> + ret = ov9740_reg_write(client, OV9740_X_OUTPUT_SIZE_LO, width & 0xff);
> + if (ret)
> + goto done;
> + ret = ov9740_reg_write(client, OV9740_Y_OUTPUT_SIZE_HI, height >> 8);
> + if (ret)
> + goto done;
> + ret = ov9740_reg_write(client, OV9740_Y_OUTPUT_SIZE_LO, height & 0xff);
> + if (ret)
> + goto done;
> +
> + ret = ov9740_reg_write(client, OV9740_ISP_CTRL1E, scale_input_x >> 8);
> + if (ret)
> + goto done;
> + ret = ov9740_reg_write(client, OV9740_ISP_CTRL1F, scale_input_x & 0xff);
> + if (ret)
> + goto done;
> + ret = ov9740_reg_write(client, OV9740_ISP_CTRL20, scale_input_y >> 8);
> + if (ret)
> + goto done;
> + ret = ov9740_reg_write(client, OV9740_ISP_CTRL21, scale_input_y & 0xff);
> + if (ret)
> + goto done;
Now that we know what control registers 1e to 21 are for, what about renaming
them ? Are they called CTRL1E to CTRL21 in the vendor documentation ?
> +
> + ret = ov9740_reg_write(client, OV9740_VFIFO_READ_START_HI,
> + (scale_input_x - width) >> 8);
> + if (ret)
> + goto done;
> + ret = ov9740_reg_write(client, OV9740_VFIFO_READ_START_LO,
> + (scale_input_x - width) & 0xff);
> + if (ret)
> + goto done;
> +
> + ret = ov9740_reg_write(client, OV9740_ISP_CTRL00, 0xff);
> + if (ret)
> + goto done;
> + ret = ov9740_reg_write(client, OV9740_ISP_CTRL01, 0xef |
> + (scaling << 4));
> + if (ret)
> + goto done;
> + ret = ov9740_reg_write(client, OV9740_ISP_CTRL03, 0xff);
> +
> +done:
> return ret;
> }
>
> @@ -787,7 +805,7 @@ static int ov9740_s_fmt(struct v4l2_subdev *sd,
> if (ret < 0)
> return ret;
>
> - ret = ov9740_set_res(client, mf->width);
> + ret = ov9740_set_res(client, mf->width, mf->height);
> if (ret < 0)
> return ret;
>
> @@ -824,8 +842,8 @@ static int ov9740_cropcap(struct v4l2_subdev *sd,
> struct v4l2_cropcap *a) {
> a->bounds.left = 0;
> a->bounds.top = 0;
> - a->bounds.width = ov9740_resolutions[OV9740_720P].width;
> - a->bounds.height = ov9740_resolutions[OV9740_720P].height;
> + a->bounds.width = OV9740_MAX_WIDTH;
> + a->bounds.height = OV9740_MAX_HEIGHT;
> a->defrect = a->bounds;
> a->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
> a->pixelaspect.numerator = 1;
> @@ -838,8 +856,8 @@ static int ov9740_g_crop(struct v4l2_subdev *sd, struct
> v4l2_crop *a) {
> a->c.left = 0;
> a->c.top = 0;
> - a->c.width = ov9740_resolutions[OV9740_720P].width;
> - a->c.height = ov9740_resolutions[OV9740_720P].height;
> + a->c.width = OV9740_MAX_WIDTH;
> + a->c.height = OV9740_MAX_HEIGHT;
> a->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
>
> return 0;
--
Regards,
Laurent Pinchart
> > + ret = ov9740_reg_write(client, OV9740_ISP_CTRL1E,
> scale_input_x >> 8);
> > + if (ret)
> > + goto done;
> > + ret = ov9740_reg_write(client, OV9740_ISP_CTRL1F,
> scale_input_x & 0xff);
> > + if (ret)
> > + goto done;
> > + ret = ov9740_reg_write(client, OV9740_ISP_CTRL20,
> scale_input_y >> 8);
> > + if (ret)
> > + goto done;
> > + ret = ov9740_reg_write(client, OV9740_ISP_CTRL21,
> scale_input_y & 0xff);
> > + if (ret)
> > + goto done;
>
> Now that we know what control registers 1e to 21 are for,
> what about renaming
> them ? Are they called CTRL1E to CTRL21 in the vendor documentation ?
Yes, that's what they're called in the vendor documentation, so I'd rather not make something up.-