On Sat, 21 May 2011, Mauro Carvalho Chehab wrote:

> This is an automatic generated email to let you know that the following patch 
> were queued at the 
> http://git.linuxtv.org/media_tree.git tree:
> 
> Subject: [media] ov9740: Cleanup, and more resolutions
> Author:  Andrew Chew <ac...@nvidia.com>
> Date:    Mon May 16 23:33:22 2011 -0300
> 
> Added more resolutions, corrected the output YUYV ordering, implemented
> suspend/resume, and general cleanup.  Supported resolutions are
> 720p, VGA, QVGA, CIF, QCIF, SIF, and QSIF.
> 
> Signed-off-by: Andrew Chew <ac...@nvidia.com>
> Signed-off-by: Mauro Carvalho Chehab <mche...@redhat.com>

NAK.

I accepted the initial commit of this driver in this "fixed configuration" 
form as a work-around for a case, where you either don't have (proper) 
documentation, or you have only been able so far to get this one fixed 
mode to work, but I don't want this driver to be extended in the same 
pattern: by adding more magical address-value pair sets for several 
pre-selected fixed modes with no logic whatsoever, and I do not want a 
patch like this - with mixed style clean ups and functional changes 
either. Please, split the clean up part from this patch and please work 
towards calculated modes, avoiding presets as much as possible.

Mauro, please, revert.

Thanks
Guennadi

> 
>  drivers/media/video/ov9740.c |  445 
> +++++++++++++++++++++++++++++++-----------
>  1 files changed, 331 insertions(+), 114 deletions(-)
> 
> ---
> 
> http://git.linuxtv.org/media_tree.git?a=commitdiff;h=b904f7f84e3b2b300c8dbfbefa076ecdcf421f79
> 
> diff --git a/drivers/media/video/ov9740.c b/drivers/media/video/ov9740.c
> index 4d4ee4f..18c35ef 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
> @@ -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
> @@ -89,28 +90,28 @@
>  #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 +133,7 @@
>  #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 +142,9 @@
>  #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 +159,12 @@
>  #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
> @@ -180,34 +181,7 @@
>  #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,
> -     },
> -};
> -
>  /* Misc. structures */
> -struct ov9740_reg {
> -     u16                             reg;
> -     u8                              val;
> -};
> -
>  struct ov9740_priv {
>       struct v4l2_subdev              subdev;
>  
> @@ -219,9 +193,21 @@ struct ov9740_priv {
>  
>       bool                            flag_vflip;
>       bool                            flag_hflip;
> +
> +     /* For suspend/resume. */
> +     struct v4l2_mbus_framefmt       current_mf;
> +     int                             current_enable;
> +};
> +
> +struct ov9740_reg {
> +     u16                             reg;
> +     u8                              val;
>  };
>  
>  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 },
> @@ -241,36 +227,36 @@ 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 +282,18 @@ 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 },
> @@ -333,6 +319,7 @@ 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 +372,7 @@ static const struct ov9740_reg ov9740_defaults[] = {
>       { OV9740_LN_LENGTH_PCK_LO,      0x62 },
>  
>       /* MIPI Control */
> -     { OV9740_MIPI_CTRL00,           0x44 },
> +     { OV9740_MIPI_CTRL00,           0x64 }, /* 0x44 for continuous clock */
>       { OV9740_MIPI_3837,             0x01 },
>       { OV9740_MIPI_CTRL01,           0x0f },
>       { OV9740_MIPI_CTRL03,           0x05 },
> @@ -393,17 +380,140 @@ 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_qsif[] = {
> +     { OV9740_X_ADDR_START_HI,       0x00 },
> +     { OV9740_X_ADDR_START_LO,       0x78 },
> +     { OV9740_Y_ADDR_START_HI,       0x00 },
> +     { OV9740_Y_ADDR_START_LO,       0x00 },
> +     { OV9740_X_ADDR_END_HI,         0x04 },
> +     { OV9740_X_ADDR_END_LO,         0x98 },
> +     { OV9740_Y_ADDR_END_HI,         0x02 },
> +     { OV9740_Y_ADDR_END_LO,         0xcf },
> +     { OV9740_X_OUTPUT_SIZE_HI,      0x00 },
> +     { OV9740_X_OUTPUT_SIZE_LO,      0xb0 },
> +     { OV9740_Y_OUTPUT_SIZE_HI,      0x00 },
> +     { OV9740_Y_OUTPUT_SIZE_LO,      0x78 },
> +     { OV9740_ISP_CTRL1E,            0x04 },
> +     { OV9740_ISP_CTRL1F,            0x20 },
> +     { OV9740_ISP_CTRL20,            0x02 },
> +     { OV9740_ISP_CTRL21,            0xd0 },
> +     { OV9740_VFIFO_READ_START_HI,   0x03 },
> +     { OV9740_VFIFO_READ_START_LO,   0x70 },
> +     { OV9740_ISP_CTRL00,            0xff },
> +     { OV9740_ISP_CTRL01,            0xff },
> +     { OV9740_ISP_CTRL03,            0xff },
> +};
> +
> +static const struct ov9740_reg ov9740_regs_qcif[] = {
> +     { OV9740_X_ADDR_START_HI,       0x00 },
> +     { OV9740_X_ADDR_START_LO,       0xd0 },
> +     { OV9740_Y_ADDR_START_HI,       0x00 },
> +     { OV9740_Y_ADDR_START_LO,       0x00 },
> +     { OV9740_X_ADDR_END_HI,         0x04 },
> +     { OV9740_X_ADDR_END_LO,         0x67 },
> +     { OV9740_Y_ADDR_END_HI,         0x02 },
> +     { OV9740_Y_ADDR_END_LO,         0xcf },
> +     { OV9740_X_OUTPUT_SIZE_HI,      0x00 },
> +     { OV9740_X_OUTPUT_SIZE_LO,      0xb0 },
> +     { OV9740_Y_OUTPUT_SIZE_HI,      0x00 },
> +     { OV9740_Y_OUTPUT_SIZE_LO,      0x90 },
> +     { OV9740_ISP_CTRL1E,            0x03 },
> +     { OV9740_ISP_CTRL1F,            0x70 },
> +     { OV9740_ISP_CTRL20,            0x02 },
> +     { OV9740_ISP_CTRL21,            0xd0 },
> +     { OV9740_VFIFO_READ_START_HI,   0x02 },
> +     { OV9740_VFIFO_READ_START_LO,   0xc0 },
> +     { OV9740_ISP_CTRL00,            0xff },
> +     { OV9740_ISP_CTRL01,            0xff },
> +     { OV9740_ISP_CTRL03,            0xff },
> +};
> +
> +static const struct ov9740_reg ov9740_regs_qvga[] = {
> +     { OV9740_X_ADDR_START_HI,       0x00 },
> +     { OV9740_X_ADDR_START_LO,       0xa8 },
> +     { OV9740_Y_ADDR_START_HI,       0x00 },
> +     { OV9740_Y_ADDR_START_LO,       0x00 },
> +     { OV9740_X_ADDR_END_HI,         0x04 },
> +     { OV9740_X_ADDR_END_LO,         0x67 },
> +     { OV9740_Y_ADDR_END_HI,         0x02 },
> +     { OV9740_Y_ADDR_END_LO,         0xcf },
> +     { OV9740_X_OUTPUT_SIZE_HI,      0x01 },
> +     { OV9740_X_OUTPUT_SIZE_LO,      0x40 },
> +     { OV9740_Y_OUTPUT_SIZE_HI,      0x00 },
> +     { OV9740_Y_OUTPUT_SIZE_LO,      0xf0 },
> +     { OV9740_ISP_CTRL1E,            0x03 },
> +     { OV9740_ISP_CTRL1F,            0xc0 },
> +     { OV9740_ISP_CTRL20,            0x02 },
> +     { OV9740_ISP_CTRL21,            0xd0 },
> +     { OV9740_VFIFO_READ_START_HI,   0x02 },
> +     { OV9740_VFIFO_READ_START_LO,   0x80 },
> +     { OV9740_ISP_CTRL00,            0xff },
> +     { OV9740_ISP_CTRL01,            0xff },
> +     { OV9740_ISP_CTRL03,            0xff },
> +};
> +
> +static const struct ov9740_reg ov9740_regs_sif[] = {
> +     { OV9740_X_ADDR_START_HI,       0x00 },
> +     { OV9740_X_ADDR_START_LO,       0x78 },
> +     { OV9740_Y_ADDR_START_HI,       0x00 },
> +     { OV9740_Y_ADDR_START_LO,       0x00 },
> +     { OV9740_X_ADDR_END_HI,         0x04 },
> +     { OV9740_X_ADDR_END_LO,         0x98 },
> +     { OV9740_Y_ADDR_END_HI,         0x02 },
> +     { OV9740_Y_ADDR_END_LO,         0xcf },
> +     { OV9740_X_OUTPUT_SIZE_HI,      0x01 },
> +     { OV9740_X_OUTPUT_SIZE_LO,      0x60 },
> +     { OV9740_Y_OUTPUT_SIZE_HI,      0x00 },
> +     { OV9740_Y_OUTPUT_SIZE_LO,      0xf0 },
> +     { OV9740_ISP_CTRL1E,            0x04 },
> +     { OV9740_ISP_CTRL1F,            0x20 },
> +     { OV9740_ISP_CTRL20,            0x02 },
> +     { OV9740_ISP_CTRL21,            0xd0 },
> +     { OV9740_VFIFO_READ_START_HI,   0x02 },
> +     { OV9740_VFIFO_READ_START_LO,   0xc0 },
> +     { OV9740_ISP_CTRL00,            0xff },
> +     { OV9740_ISP_CTRL01,            0xff },
> +     { OV9740_ISP_CTRL03,            0xff },
> +};
> +
> +static const struct ov9740_reg ov9740_regs_cif[] = {
> +     { OV9740_X_ADDR_START_HI,       0x00 },
> +     { OV9740_X_ADDR_START_LO,       0xd0 },
> +     { OV9740_Y_ADDR_START_HI,       0x00 },
> +     { OV9740_Y_ADDR_START_LO,       0x00 },
> +     { OV9740_X_ADDR_END_HI,         0x04 },
> +     { OV9740_X_ADDR_END_LO,         0x67 },
> +     { OV9740_Y_ADDR_END_HI,         0x02 },
> +     { OV9740_Y_ADDR_END_LO,         0xcf },
> +     { OV9740_X_OUTPUT_SIZE_HI,      0x01 },
> +     { OV9740_X_OUTPUT_SIZE_LO,      0x60 },
> +     { OV9740_Y_OUTPUT_SIZE_HI,      0x01 },
> +     { OV9740_Y_OUTPUT_SIZE_LO,      0x20 },
> +     { OV9740_ISP_CTRL1E,            0x03 },
> +     { OV9740_ISP_CTRL1F,            0x70 },
> +     { OV9740_ISP_CTRL20,            0x02 },
> +     { OV9740_ISP_CTRL21,            0xd0 },
> +     { OV9740_VFIFO_READ_START_HI,   0x02 },
> +     { OV9740_VFIFO_READ_START_LO,   0x10 },
> +     { OV9740_ISP_CTRL00,            0xff },
> +     { OV9740_ISP_CTRL01,            0xff },
> +     { OV9740_ISP_CTRL03,            0xff },
>  };
>  
>  static const struct ov9740_reg ov9740_regs_vga[] = {
>       { OV9740_X_ADDR_START_HI,       0x00 },
> -     { OV9740_X_ADDR_START_LO,       0xa0 },
> +     { OV9740_X_ADDR_START_LO,       0xa8 },
>       { 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_X_ADDR_END_LO,         0x67 },
>       { OV9740_Y_ADDR_END_HI,         0x02 },
> -     { OV9740_Y_ADDR_END_LO,         0xd3 },
> +     { OV9740_Y_ADDR_END_LO,         0xcf },
>       { OV9740_X_OUTPUT_SIZE_HI,      0x02 },
>       { OV9740_X_OUTPUT_SIZE_LO,      0x80 },
>       { OV9740_Y_OUTPUT_SIZE_HI,      0x01 },
> @@ -424,10 +534,10 @@ static const struct ov9740_reg ov9740_regs_720p[] = {
>       { 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_X_ADDR_END_HI,         0x04 },
> +     { OV9740_X_ADDR_END_LO,         0xff },
>       { OV9740_Y_ADDR_END_HI,         0x02 },
> -     { OV9740_Y_ADDR_END_LO,         0xd3 },
> +     { OV9740_Y_ADDR_END_LO,         0xcf },
>       { OV9740_X_OUTPUT_SIZE_HI,      0x05 },
>       { OV9740_X_OUTPUT_SIZE_LO,      0x00 },
>       { OV9740_Y_OUTPUT_SIZE_HI,      0x02 },
> @@ -437,12 +547,75 @@ static const struct ov9740_reg ov9740_regs_720p[] = {
>       { OV9740_ISP_CTRL20,            0x02 },
>       { OV9740_ISP_CTRL21,            0xd0 },
>       { OV9740_VFIFO_READ_START_HI,   0x02 },
> -     { OV9740_VFIFO_READ_START_LO,   0x30 },
> +     { OV9740_VFIFO_READ_START_LO,   0x70 },
>       { OV9740_ISP_CTRL00,            0xff },
>       { OV9740_ISP_CTRL01,            0xef },
>       { OV9740_ISP_CTRL03,            0xff },
>  };
>  
> +/* supported resolutions */
> +enum {
> +     OV9740_QSIF = 0,
> +     OV9740_QCIF,
> +     OV9740_QVGA,
> +     OV9740_SIF,
> +     OV9740_CIF,
> +     OV9740_VGA,
> +     OV9740_720P,
> +};
> +
> +struct ov9740_resolution {
> +     unsigned int            width;
> +     unsigned int            height;
> +     const struct ov9740_reg *reg_array;
> +     unsigned int            reg_array_size;
> +};
> +
> +static struct ov9740_resolution ov9740_resolutions[] = {
> +     [OV9740_QSIF] = {
> +             .width          = 176,
> +             .height         = 120,
> +             .reg_array      = ov9740_regs_qsif,
> +             .reg_array_size = ARRAY_SIZE(ov9740_regs_qsif),
> +     },
> +     [OV9740_QCIF] = {
> +             .width          = 176,
> +             .height         = 144,
> +             .reg_array      = ov9740_regs_qcif,
> +             .reg_array_size = ARRAY_SIZE(ov9740_regs_qcif),
> +     },
> +     [OV9740_QVGA] = {
> +             .width          = 320,
> +             .height         = 240,
> +             .reg_array      = ov9740_regs_qvga,
> +             .reg_array_size = ARRAY_SIZE(ov9740_regs_qvga),
> +     },
> +     [OV9740_SIF] = {
> +             .width          = 352,
> +             .height         = 240,
> +             .reg_array      = ov9740_regs_sif,
> +             .reg_array_size = ARRAY_SIZE(ov9740_regs_sif),
> +     },
> +     [OV9740_CIF] = {
> +             .width          = 352,
> +             .height         = 288,
> +             .reg_array      = ov9740_regs_cif,
> +             .reg_array_size = ARRAY_SIZE(ov9740_regs_cif),
> +     },
> +     [OV9740_VGA] = {
> +             .width          = 640,
> +             .height         = 480,
> +             .reg_array      = ov9740_regs_vga,
> +             .reg_array_size = ARRAY_SIZE(ov9740_regs_vga),
> +     },
> +     [OV9740_720P] = {
> +             .width          = 1280,
> +             .height         = 720,
> +             .reg_array      = ov9740_regs_720p,
> +             .reg_array_size = ARRAY_SIZE(ov9740_regs_720p),
> +     },
> +};
> +
>  static enum v4l2_mbus_pixelcode ov9740_codes[] = {
>       V4L2_MBUS_FMT_YUYV8_2X8,
>  };
> @@ -537,7 +710,8 @@ 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 +721,8 @@ 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;
>       }
>  
> @@ -608,6 +783,8 @@ static int ov9740_s_stream(struct v4l2_subdev *sd, int 
> enable)
>                                              0x00);
>       }
>  
> +     priv->current_enable = enable;
> +
>       return ret;
>  }
>  
> @@ -727,30 +904,34 @@ static void ov9740_res_roundup(u32 *width, u32 *height)
>                       return;
>               }
>  
> -     *width = ov9740_resolutions[OV9740_720P].width;
> -     *height = ov9740_resolutions[OV9740_720P].height;
> +     /* If nearest higher resolution isn't found, default to the largest. */
> +     *width = ov9740_resolutions[ARRAY_SIZE(ov9740_resolutions)-1].width;
> +     *height = ov9740_resolutions[ARRAY_SIZE(ov9740_resolutions)-1].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)
>  {
> -     int ret;
> +     int k;
>  
>       /* 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));
> -     } else {
> -             dev_err(&client->dev, "Failed to select resolution!\n");
> -             return -EINVAL;
> +     for (k = 0; k < ARRAY_SIZE(ov9740_resolutions); k++) {
> +             struct ov9740_resolution *res = &ov9740_resolutions[k];
> +
> +             if ((width == res->width) && (height == res->height)) {
> +                     dev_dbg(&client->dev, "Setting image size to %dx%d\n",
> +                             res->width, res->height);
> +                     return ov9740_reg_write_array(client, res->reg_array,
> +                                                   res->reg_array_size);
> +             }
>       }
>  
> -     return ret;
> +     dev_err(&client->dev, "Failed to select resolution %dx%d!\n",
> +             width, height);
> +
> +     WARN_ON(1);
> +
> +     return -EINVAL;
>  }
>  
>  /* set the format we will capture in */
> @@ -758,6 +939,7 @@ 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;
> @@ -777,13 +959,15 @@ 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;
>  
>       mf->code        = code;
>       mf->colorspace  = cspace;
>  
> +     memcpy(&priv->current_mf, mf, sizeof(struct v4l2_mbus_framefmt));
> +
>       return ret;
>  }
>  
> @@ -814,8 +998,10 @@ 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_resolutions[ARRAY_SIZE(ov9740_resolutions)-1].width;
> +     a->bounds.height        =
> +             ov9740_resolutions[ARRAY_SIZE(ov9740_resolutions)-1].height;
>       a->defrect              = a->bounds;
>       a->type                 = V4L2_BUF_TYPE_VIDEO_CAPTURE;
>       a->pixelaspect.numerator        = 1;
> @@ -828,8 +1014,10 @@ 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_resolutions[ARRAY_SIZE(ov9740_resolutions)-1].width;
> +     a->c.height             =
> +             ov9740_resolutions[ARRAY_SIZE(ov9740_resolutions)-1].height;
>       a->type                 = V4L2_BUF_TYPE_VIDEO_CAPTURE;
>  
>       return 0;
> @@ -894,7 +1082,37 @@ err:
>       return ret;
>  }
>  
> +static int ov9740_suspend(struct soc_camera_device *icd, pm_message_t state)
> +{
> +     struct v4l2_subdev *sd = soc_camera_to_subdev(icd);
> +     struct ov9740_priv *priv = to_ov9740(sd);
> +
> +     if (priv->current_enable) {
> +             int current_enable = priv->current_enable;
> +
> +             ov9740_s_stream(sd, 0);
> +             priv->current_enable = current_enable;
> +     }
> +
> +     return 0;
> +}
> +
> +static int ov9740_resume(struct soc_camera_device *icd)
> +{
> +     struct v4l2_subdev *sd = soc_camera_to_subdev(icd);
> +     struct ov9740_priv *priv = to_ov9740(sd);
> +
> +     if (priv->current_enable) {
> +             ov9740_s_fmt(sd, &priv->current_mf);
> +             ov9740_s_stream(sd, priv->current_enable);
> +     }
> +
> +     return 0;
> +}
> +
>  static struct soc_camera_ops ov9740_ops = {
> +     .suspend                = ov9740_suspend,
> +     .resume                 = ov9740_resume,
>       .set_bus_param          = ov9740_set_bus_param,
>       .query_bus_param        = ov9740_query_bus_param,
>       .controls               = ov9740_controls,
> @@ -909,7 +1127,6 @@ 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 = {
> 
> _______________________________________________
> linuxtv-commits mailing list
> linuxtv-comm...@linuxtv.org
> http://www.linuxtv.org/cgi-bin/mailman/listinfo/linuxtv-commits
> 

---
Guennadi Liakhovetski, Ph.D.
Freelance Open-Source Software Developer
http://www.open-technology.de/
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