diff options
Diffstat (limited to 'drivers/media/video/ov9740.c')
| -rw-r--r-- | drivers/media/video/ov9740.c | 556 |
1 files changed, 302 insertions, 254 deletions
diff --git a/drivers/media/video/ov9740.c b/drivers/media/video/ov9740.c index 4d4ee4faca69..edd1ffcca30b 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 @@ -180,27 +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 { @@ -219,9 +201,16 @@ 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[] = { + /* Software Reset */ + { OV9740_SOFTWARE_RESET, 0x01 }, + /* Banding Filter */ { OV9740_AEC_B50_STEP_HI, 0x00 }, { OV9740_AEC_B50_STEP_LO, 0xe8 }, @@ -241,36 +230,36 @@ 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 +285,18 @@ 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 +322,7 @@ 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 +375,7 @@ 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 }, @@ -393,54 +383,9 @@ static const struct ov9740_reg ov9740_defaults[] = { { OV9740_VFIFO_RD_CTRL, 0x16 }, { OV9740_MIPI_CTRL_3012, 0x70 }, { OV9740_SC_CMMM_MIPI_CTR, 0x01 }, -}; - -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 }, + /* YUYV order */ + { OV9740_ISP_CTRL19, 0x02 }, }; static enum v4l2_mbus_pixelcode ov9740_codes[] = { @@ -537,7 +482,8 @@ 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 +493,8 @@ 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 +555,8 @@ static int ov9740_s_stream(struct v4l2_subdev *sd, int enable) 0x00); } + priv->current_enable = enable; + return ret; } @@ -630,126 +579,127 @@ 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) +/* select nearest higher resolution for capture */ +static void ov9740_res_roundup(u32 *width, u32 *height) { - struct ov9740_priv *priv = to_ov9740(sd); + /* Width must be a multiple of 4 pixels. */ + *width = ALIGN(*width, 4); - id->ident = priv->ident; - id->revision = priv->revision; + /* Max resolution is 1280x720 (720p). */ + if (*width > OV9740_MAX_WIDTH) + *width = OV9740_MAX_WIDTH; - return 0; + if (*height > OV9740_MAX_HEIGHT) + *height = OV9740_MAX_HEIGHT; } -#ifdef CONFIG_VIDEO_ADV_DEBUG -static int ov9740_get_register(struct v4l2_subdev *sd, - struct v4l2_dbg_register *reg) +/* Setup registers according to resolution and color encoding */ +static int ov9740_set_res(struct i2c_client *client, u32 width, u32 height) { - struct i2c_client *client = v4l2_get_subdevdata(sd); + 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; - 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; + if ((width != OV9740_MAX_WIDTH) || (height != OV9740_MAX_HEIGHT)) + scaling = 1; - return ret; -} - -static int ov9740_set_register(struct v4l2_subdev *sd, - struct v4l2_dbg_register *reg) -{ - struct i2c_client *client = v4l2_get_subdevdata(sd); + /* + * 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 { + scale_input_x = OV9740_MAX_WIDTH; + scale_input_y = (OV9740_MAX_WIDTH * height) / width; + } - if (reg->reg & ~0xffff || reg->val & ~0xff) - return -EINVAL; + /* 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; - return ov9740_reg_write(client, reg->reg, reg->val); -} -#endif + 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; -/* select nearest higher resolution for capture */ -static void ov9740_res_roundup(u32 *width, u32 *height) -{ - int i; + 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; - 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; - } + 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; - *width = ov9740_resolutions[OV9740_720P].width; - *height = ov9740_resolutions[OV9740_720P].height; -} + 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; -/* Setup registers according to resolution and color encoding */ -static int ov9740_set_res(struct i2c_client *client, u32 width) -{ - int ret; + 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; - /* 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; - } + 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; } @@ -758,6 +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; @@ -777,13 +728,15 @@ 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 +767,8 @@ 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; @@ -828,13 +781,115 @@ 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; } +/* 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; +} + +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) +{ + 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) { @@ -843,16 +898,9 @@ static int ov9740_video_probe(struct soc_camera_device *icd, u8 modelhi, modello; int ret; - /* - * We must have a parent by now. And it cannot be a wrong one. - * So this entire test is completely redundant. - */ - if (!icd->dev.parent || - to_soc_camera_host(icd->dev.parent)->nr != icd->iface) { - dev_err(&client->dev, "Parent missing or invalid!\n"); - ret = -ENODEV; - goto err; - } + /* We must have a parent by now. And it cannot be a wrong one. */ + BUG_ON(!icd->parent || + to_soc_camera_host(icd->parent)->nr != icd->iface); /* * check and show product ID and manufacturer ID @@ -901,24 +949,24 @@ 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, .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, #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 = { |