diff options
Diffstat (limited to 'drivers/media/i2c/gc2145.c')
| -rw-r--r-- | drivers/media/i2c/gc2145.c | 131 |
1 files changed, 84 insertions, 47 deletions
diff --git a/drivers/media/i2c/gc2145.c b/drivers/media/i2c/gc2145.c index bef7b0e056a8..ba02161d46e7 100644 --- a/drivers/media/i2c/gc2145.c +++ b/drivers/media/i2c/gc2145.c @@ -21,7 +21,6 @@ #include <media/v4l2-cci.h> #include <media/v4l2-ctrls.h> #include <media/v4l2-device.h> -#include <media/v4l2-event.h> #include <media/v4l2-fwnode.h> #include <media/v4l2-mediabus.h> @@ -68,8 +67,7 @@ #define GC2145_DPHY_CLK_DELAY BIT(4) #define GC2145_DPHY_LANE0_DELAY BIT(5) #define GC2145_DPHY_LANE1_DELAY BIT(6) -#define GC2145_REG_FIFO_FULL_LVL_LOW CCI_REG8(0x04) -#define GC2145_REG_FIFO_FULL_LVL_HIGH CCI_REG8(0x05) +#define GC2145_REG_FIFO_FULL_LVL CCI_REG16_LE(0x04) #define GC2145_REG_FIFO_MODE CCI_REG8(0x06) #define GC2145_FIFO_MODE_READ_GATE BIT(3) #define GC2145_FIFO_MODE_MIPI_CLK_MODULE BIT(7) @@ -79,8 +77,7 @@ #define GC2145_CSI2_MODE_MIPI_EN BIT(4) #define GC2145_CSI2_MODE_EN BIT(7) #define GC2145_REG_MIPI_DT CCI_REG8(0x11) -#define GC2145_REG_LWC_LOW CCI_REG8(0x12) -#define GC2145_REG_LWC_HIGH CCI_REG8(0x13) +#define GC2145_REG_LWC CCI_REG16_LE(0x12) #define GC2145_REG_DPHY_MODE CCI_REG8(0x15) #define GC2145_DPHY_MODE_TRIGGER_PROG BIT(4) #define GC2145_REG_FIFO_GATE_MODE CCI_REG8(0x17) @@ -542,45 +539,82 @@ static const struct gc2145_mode supported_modes[] = { /** * struct gc2145_format - GC2145 pixel format description * @code: media bus (MBUS) associated code + * @colorspace: V4L2 colorspace * @datatype: MIPI CSI2 data type * @output_fmt: GC2145 output format * @switch_bit: GC2145 first/second switch + * @row_col_switch: GC2145 switch row and/or column */ struct gc2145_format { unsigned int code; + unsigned int colorspace; unsigned char datatype; unsigned char output_fmt; bool switch_bit; + unsigned char row_col_switch; }; /* All supported formats */ static const struct gc2145_format supported_formats[] = { { .code = MEDIA_BUS_FMT_UYVY8_1X16, + .colorspace = V4L2_COLORSPACE_SRGB, .datatype = MIPI_CSI2_DT_YUV422_8B, .output_fmt = 0x00, }, { .code = MEDIA_BUS_FMT_VYUY8_1X16, + .colorspace = V4L2_COLORSPACE_SRGB, .datatype = MIPI_CSI2_DT_YUV422_8B, .output_fmt = 0x01, }, { .code = MEDIA_BUS_FMT_YUYV8_1X16, + .colorspace = V4L2_COLORSPACE_SRGB, .datatype = MIPI_CSI2_DT_YUV422_8B, .output_fmt = 0x02, }, { .code = MEDIA_BUS_FMT_YVYU8_1X16, + .colorspace = V4L2_COLORSPACE_SRGB, .datatype = MIPI_CSI2_DT_YUV422_8B, .output_fmt = 0x03, }, { .code = MEDIA_BUS_FMT_RGB565_1X16, + .colorspace = V4L2_COLORSPACE_SRGB, .datatype = MIPI_CSI2_DT_RGB565, .output_fmt = 0x06, .switch_bit = true, }, + { + .code = MEDIA_BUS_FMT_SGRBG8_1X8, + .colorspace = V4L2_COLORSPACE_RAW, + .datatype = MIPI_CSI2_DT_RAW8, + .output_fmt = 0x17, + .row_col_switch = GC2145_SYNC_MODE_COL_SWITCH, + }, + { + .code = MEDIA_BUS_FMT_SRGGB8_1X8, + .colorspace = V4L2_COLORSPACE_RAW, + .datatype = MIPI_CSI2_DT_RAW8, + .output_fmt = 0x17, + .row_col_switch = GC2145_SYNC_MODE_COL_SWITCH | GC2145_SYNC_MODE_ROW_SWITCH, + }, + { + .code = MEDIA_BUS_FMT_SBGGR8_1X8, + .colorspace = V4L2_COLORSPACE_RAW, + .datatype = MIPI_CSI2_DT_RAW8, + .output_fmt = 0x17, + .row_col_switch = 0, + }, + { + .code = MEDIA_BUS_FMT_SGBRG8_1X8, + .colorspace = V4L2_COLORSPACE_RAW, + .datatype = MIPI_CSI2_DT_RAW8, + .output_fmt = 0x17, + .row_col_switch = GC2145_SYNC_MODE_ROW_SWITCH, + }, }; struct gc2145_ctrls { @@ -641,7 +675,8 @@ gc2145_get_format_code(struct gc2145 *gc2145, u32 code) static void gc2145_update_pad_format(struct gc2145 *gc2145, const struct gc2145_mode *mode, - struct v4l2_mbus_framefmt *fmt, u32 code) + struct v4l2_mbus_framefmt *fmt, u32 code, + u32 colorspace) { fmt->code = code; fmt->width = mode->width; @@ -663,7 +698,8 @@ static int gc2145_init_state(struct v4l2_subdev *sd, /* Initialize pad format */ format = v4l2_subdev_state_get_format(state, 0); gc2145_update_pad_format(gc2145, &supported_modes[0], format, - MEDIA_BUS_FMT_RGB565_1X16); + MEDIA_BUS_FMT_RGB565_1X16, + V4L2_COLORSPACE_SRGB); /* Initialize crop rectangle. */ crop = v4l2_subdev_state_get_crop(state, 0); @@ -754,7 +790,13 @@ static int gc2145_set_pad_format(struct v4l2_subdev *sd, width, height, fmt->format.width, fmt->format.height); - gc2145_update_pad_format(gc2145, mode, &fmt->format, gc2145_fmt->code); + /* In RAW mode, VGA is not possible so use 720p instead */ + if (gc2145_fmt->colorspace == V4L2_COLORSPACE_RAW && + mode == &supported_modes[GC2145_MODE_640X480]) + mode = &supported_modes[GC2145_MODE_1280X720]; + + gc2145_update_pad_format(gc2145, mode, &fmt->format, gc2145_fmt->code, + gc2145_fmt->colorspace); framefmt = v4l2_subdev_state_get_format(sd_state, fmt->pad); if (fmt->which == V4L2_SUBDEV_FORMAT_ACTIVE) { gc2145->mode = mode; @@ -811,9 +853,12 @@ static int gc2145_config_mipi_mode(struct gc2145 *gc2145, * For RAW8, LWC = image width * For RAW10, LWC = image width * 1.25 */ - lwc = gc2145->mode->width * 2; - cci_write(gc2145->regmap, GC2145_REG_LWC_HIGH, lwc >> 8, &ret); - cci_write(gc2145->regmap, GC2145_REG_LWC_LOW, lwc & 0xff, &ret); + if (gc2145_format->colorspace != V4L2_COLORSPACE_RAW) + lwc = gc2145->mode->width * 2; + else + lwc = gc2145->mode->width; + + cci_write(gc2145->regmap, GC2145_REG_LWC, lwc, &ret); /* * Adjust the MIPI FIFO Full Level @@ -821,21 +866,25 @@ static int gc2145_config_mipi_mode(struct gc2145 *gc2145, * 1280x720 / 1600x1200 (aka no scaler) non RAW: 0x0001 * 1600x1200 RAW: 0x0190 */ - if (gc2145->mode->width == 1280 || gc2145->mode->width == 1600) - fifo_full_lvl = 0x0001; - else + if (gc2145_format->colorspace != V4L2_COLORSPACE_RAW) { + if (gc2145->mode->width == 1280 || gc2145->mode->width == 1600) + fifo_full_lvl = 0x0001; + else + fifo_full_lvl = 0x0190; + } else { fifo_full_lvl = 0x0190; + } - cci_write(gc2145->regmap, GC2145_REG_FIFO_FULL_LVL_HIGH, - fifo_full_lvl >> 8, &ret); - cci_write(gc2145->regmap, GC2145_REG_FIFO_FULL_LVL_LOW, - fifo_full_lvl & 0xff, &ret); + cci_write(gc2145->regmap, GC2145_REG_FIFO_FULL_LVL, + fifo_full_lvl, &ret); /* * Set the FIFO gate mode / MIPI wdiv set: * 0xf1 in case of RAW mode and 0xf0 otherwise */ - cci_write(gc2145->regmap, GC2145_REG_FIFO_GATE_MODE, 0xf0, &ret); + cci_write(gc2145->regmap, GC2145_REG_FIFO_GATE_MODE, + gc2145_format->colorspace == V4L2_COLORSPACE_RAW ? + 0xf1 : 0xf0, &ret); /* Set the MIPI data type */ cci_write(gc2145->regmap, GC2145_REG_MIPI_DT, @@ -849,9 +898,11 @@ static int gc2145_config_mipi_mode(struct gc2145 *gc2145, return ret; } -static int gc2145_start_streaming(struct gc2145 *gc2145, - struct v4l2_subdev_state *state) +static int gc2145_enable_streams(struct v4l2_subdev *sd, + struct v4l2_subdev_state *state, u32 pad, + u64 streams_mask) { + struct gc2145 *gc2145 = to_gc2145(sd); struct i2c_client *client = v4l2_get_subdevdata(&gc2145->sd); const struct gc2145_format *gc2145_format; struct v4l2_mbus_framefmt *fmt; @@ -883,6 +934,10 @@ static int gc2145_start_streaming(struct gc2145 *gc2145, GC2145_BYPASS_MODE_SWITCH, gc2145_format->switch_bit ? GC2145_BYPASS_MODE_SWITCH : 0, &ret); + cci_update_bits(gc2145->regmap, GC2145_REG_SYNC_MODE, + GC2145_SYNC_MODE_COL_SWITCH | + GC2145_SYNC_MODE_ROW_SWITCH, + gc2145_format->row_col_switch, &ret); if (ret) { dev_err(&client->dev, "%s failed to write regs\n", __func__); goto err_rpm_put; @@ -913,8 +968,11 @@ err_rpm_put: return ret; } -static void gc2145_stop_streaming(struct gc2145 *gc2145) +static int gc2145_disable_streams(struct v4l2_subdev *sd, + struct v4l2_subdev_state *state, u32 pad, + u64 streams_mask) { + struct gc2145 *gc2145 = to_gc2145(sd); struct i2c_client *client = v4l2_get_subdevdata(&gc2145->sd); int ret = 0; @@ -929,22 +987,6 @@ static void gc2145_stop_streaming(struct gc2145 *gc2145) pm_runtime_mark_last_busy(&client->dev); pm_runtime_put_autosuspend(&client->dev); -} - -static int gc2145_set_stream(struct v4l2_subdev *sd, int enable) -{ - struct gc2145 *gc2145 = to_gc2145(sd); - struct v4l2_subdev_state *state; - int ret = 0; - - state = v4l2_subdev_lock_and_get_active_state(sd); - - if (enable) - ret = gc2145_start_streaming(gc2145, state); - else - gc2145_stop_streaming(gc2145); - - v4l2_subdev_unlock_state(state); return ret; } @@ -1069,13 +1111,8 @@ static const u8 test_pattern_val[] = { GC2145_TEST_UNIFORM | GC2145_TEST_BLACK, }; -static const struct v4l2_subdev_core_ops gc2145_core_ops = { - .subscribe_event = v4l2_ctrl_subdev_subscribe_event, - .unsubscribe_event = v4l2_event_subdev_unsubscribe, -}; - static const struct v4l2_subdev_video_ops gc2145_video_ops = { - .s_stream = gc2145_set_stream, + .s_stream = v4l2_subdev_s_stream_helper, }; static const struct v4l2_subdev_pad_ops gc2145_pad_ops = { @@ -1084,10 +1121,11 @@ static const struct v4l2_subdev_pad_ops gc2145_pad_ops = { .set_fmt = gc2145_set_pad_format, .get_selection = gc2145_get_selection, .enum_frame_size = gc2145_enum_frame_size, + .enable_streams = gc2145_enable_streams, + .disable_streams = gc2145_disable_streams, }; static const struct v4l2_subdev_ops gc2145_subdev_ops = { - .core = &gc2145_core_ops, .video = &gc2145_video_ops, .pad = &gc2145_pad_ops, }; @@ -1353,8 +1391,7 @@ static int gc2145_probe(struct i2c_client *client) goto error_power_off; /* Initialize subdev */ - gc2145->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE | - V4L2_SUBDEV_FL_HAS_EVENTS; + gc2145->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE; gc2145->sd.entity.function = MEDIA_ENT_F_CAM_SENSOR; /* Initialize source pad */ |