diff options
Diffstat (limited to 'drivers/media/video/v4l2-common.c')
| -rw-r--r-- | drivers/media/video/v4l2-common.c | 101 |
1 files changed, 87 insertions, 14 deletions
diff --git a/drivers/media/video/v4l2-common.c b/drivers/media/video/v4l2-common.c index 36b5cb86fb57..4e53b0b3339c 100644 --- a/drivers/media/video/v4l2-common.c +++ b/drivers/media/video/v4l2-common.c @@ -51,6 +51,9 @@ #include <linux/string.h> #include <linux/errno.h> #include <linux/i2c.h> +#if defined(CONFIG_SPI) +#include <linux/spi/spi.h> +#endif #include <asm/uaccess.h> #include <asm/system.h> #include <asm/pgtable.h> @@ -85,10 +88,9 @@ MODULE_LICENSE("GPL"); val == V4L2_PRIORITY_INTERACTIVE || \ val == V4L2_PRIORITY_RECORD) -int v4l2_prio_init(struct v4l2_prio_state *global) +void v4l2_prio_init(struct v4l2_prio_state *global) { - memset(global,0,sizeof(*global)); - return 0; + memset(global, 0, sizeof(*global)); } EXPORT_SYMBOL(v4l2_prio_init); @@ -108,17 +110,16 @@ int v4l2_prio_change(struct v4l2_prio_state *global, enum v4l2_priority *local, } EXPORT_SYMBOL(v4l2_prio_change); -int v4l2_prio_open(struct v4l2_prio_state *global, enum v4l2_priority *local) +void v4l2_prio_open(struct v4l2_prio_state *global, enum v4l2_priority *local) { - return v4l2_prio_change(global,local,V4L2_PRIORITY_DEFAULT); + v4l2_prio_change(global, local, V4L2_PRIORITY_DEFAULT); } EXPORT_SYMBOL(v4l2_prio_open); -int v4l2_prio_close(struct v4l2_prio_state *global, enum v4l2_priority *local) +void v4l2_prio_close(struct v4l2_prio_state *global, enum v4l2_priority local) { - if (V4L2_PRIO_VALID(*local)) - atomic_dec(&global->prios[*local]); - return 0; + if (V4L2_PRIO_VALID(local)) + atomic_dec(&global->prios[local]); } EXPORT_SYMBOL(v4l2_prio_close); @@ -134,11 +135,9 @@ enum v4l2_priority v4l2_prio_max(struct v4l2_prio_state *global) } EXPORT_SYMBOL(v4l2_prio_max); -int v4l2_prio_check(struct v4l2_prio_state *global, enum v4l2_priority *local) +int v4l2_prio_check(struct v4l2_prio_state *global, enum v4l2_priority local) { - if (*local < v4l2_prio_max(global)) - return -EBUSY; - return 0; + return (local < v4l2_prio_max(global)) ? -EBUSY : 0; } EXPORT_SYMBOL(v4l2_prio_check); @@ -340,6 +339,13 @@ const char **v4l2_ctrl_get_menu(u32 id) "None", "Black & White", "Sepia", + "Negative", + "Emboss", + "Sketch", + "Sky blue", + "Grass green", + "Skin whiten", + "Vivid", NULL }; static const char *tune_preemphasis[] = { @@ -429,10 +435,13 @@ const char *v4l2_ctrl_get_name(u32 id) case V4L2_CID_SHARPNESS: return "Sharpness"; case V4L2_CID_BACKLIGHT_COMPENSATION: return "Backlight Compensation"; case V4L2_CID_CHROMA_AGC: return "Chroma AGC"; + case V4L2_CID_CHROMA_GAIN: return "Chroma Gain"; case V4L2_CID_COLOR_KILLER: return "Color Killer"; case V4L2_CID_COLORFX: return "Color Effects"; + case V4L2_CID_AUTOBRIGHTNESS: return "Brightness, Automatic"; + case V4L2_CID_BAND_STOP_FILTER: return "Band-Stop Filter"; case V4L2_CID_ROTATE: return "Rotate"; - case V4L2_CID_BG_COLOR: return "Background color"; + case V4L2_CID_BG_COLOR: return "Background Color"; /* MPEG controls */ case V4L2_CID_MPEG_CLASS: return "MPEG Encoder Controls"; @@ -483,6 +492,8 @@ const char *v4l2_ctrl_get_name(u32 id) case V4L2_CID_FOCUS_ABSOLUTE: return "Focus, Absolute"; case V4L2_CID_FOCUS_RELATIVE: return "Focus, Relative"; case V4L2_CID_FOCUS_AUTO: return "Focus, Automatic"; + case V4L2_CID_IRIS_ABSOLUTE: return "Iris, Absolute"; + case V4L2_CID_IRIS_RELATIVE: return "Iris, Relative"; case V4L2_CID_ZOOM_ABSOLUTE: return "Zoom, Absolute"; case V4L2_CID_ZOOM_RELATIVE: return "Zoom, Relative"; case V4L2_CID_ZOOM_CONTINUOUS: return "Zoom, Continuous"; @@ -620,6 +631,7 @@ int v4l2_ctrl_query_fill(struct v4l2_queryctrl *qctrl, s32 min, s32 max, s32 ste case V4L2_CID_BLUE_BALANCE: case V4L2_CID_GAMMA: case V4L2_CID_SHARPNESS: + case V4L2_CID_CHROMA_GAIN: case V4L2_CID_RDS_TX_DEVIATION: case V4L2_CID_AUDIO_LIMITER_RELEASE_TIME: case V4L2_CID_AUDIO_LIMITER_DEVIATION: @@ -636,6 +648,7 @@ int v4l2_ctrl_query_fill(struct v4l2_queryctrl *qctrl, s32 min, s32 max, s32 ste case V4L2_CID_PAN_RELATIVE: case V4L2_CID_TILT_RELATIVE: case V4L2_CID_FOCUS_RELATIVE: + case V4L2_CID_IRIS_RELATIVE: case V4L2_CID_ZOOM_RELATIVE: qctrl->flags |= V4L2_CTRL_FLAG_WRITE_ONLY; break; @@ -951,6 +964,66 @@ EXPORT_SYMBOL_GPL(v4l2_i2c_tuner_addrs); #endif /* defined(CONFIG_I2C) */ +#if defined(CONFIG_SPI) + +/* Load a spi sub-device. */ + +void v4l2_spi_subdev_init(struct v4l2_subdev *sd, struct spi_device *spi, + const struct v4l2_subdev_ops *ops) +{ + v4l2_subdev_init(sd, ops); + sd->flags |= V4L2_SUBDEV_FL_IS_SPI; + /* the owner is the same as the spi_device's driver owner */ + sd->owner = spi->dev.driver->owner; + /* spi_device and v4l2_subdev point to one another */ + v4l2_set_subdevdata(sd, spi); + spi_set_drvdata(spi, sd); + /* initialize name */ + strlcpy(sd->name, spi->dev.driver->name, sizeof(sd->name)); +} +EXPORT_SYMBOL_GPL(v4l2_spi_subdev_init); + +struct v4l2_subdev *v4l2_spi_new_subdev(struct v4l2_device *v4l2_dev, + struct spi_master *master, struct spi_board_info *info) +{ + struct v4l2_subdev *sd = NULL; + struct spi_device *spi = NULL; + + BUG_ON(!v4l2_dev); + + if (info->modalias) + request_module(info->modalias); + + spi = spi_new_device(master, info); + + if (spi == NULL || spi->dev.driver == NULL) + goto error; + + if (!try_module_get(spi->dev.driver->owner)) + goto error; + + sd = spi_get_drvdata(spi); + + /* Register with the v4l2_device which increases the module's + use count as well. */ + if (v4l2_device_register_subdev(v4l2_dev, sd)) + sd = NULL; + + /* Decrease the module use count to match the first try_module_get. */ + module_put(spi->dev.driver->owner); + +error: + /* If we have a client but no subdev, then something went wrong and + we must unregister the client. */ + if (spi && sd == NULL) + spi_unregister_device(spi); + + return sd; +} +EXPORT_SYMBOL_GPL(v4l2_spi_new_subdev); + +#endif /* defined(CONFIG_SPI) */ + /* Clamp x to be between min and max, aligned to a multiple of 2^align. min * and max don't have to be aligned, but there must be at least one valid * value. E.g., min=17,max=31,align=4 is not allowed as there are no multiples |