diff options
Diffstat (limited to 'drivers/media/video/uvc')
| -rw-r--r-- | drivers/media/video/uvc/uvc_ctrl.c | 255 | ||||
| -rw-r--r-- | drivers/media/video/uvc/uvc_driver.c | 570 | ||||
| -rw-r--r-- | drivers/media/video/uvc/uvc_isight.c | 7 | ||||
| -rw-r--r-- | drivers/media/video/uvc/uvc_v4l2.c | 277 | ||||
| -rw-r--r-- | drivers/media/video/uvc/uvc_video.c | 434 | ||||
| -rw-r--r-- | drivers/media/video/uvc/uvcvideo.h | 278 |
6 files changed, 926 insertions, 895 deletions
diff --git a/drivers/media/video/uvc/uvc_ctrl.c b/drivers/media/video/uvc/uvc_ctrl.c index 36a6ba92df2..c3225a56174 100644 --- a/drivers/media/video/uvc/uvc_ctrl.c +++ b/drivers/media/video/uvc/uvc_ctrl.c @@ -34,7 +34,7 @@ static struct uvc_control_info uvc_ctrls[] = { { .entity = UVC_GUID_UVC_PROCESSING, - .selector = PU_BRIGHTNESS_CONTROL, + .selector = UVC_PU_BRIGHTNESS_CONTROL, .index = 0, .size = 2, .flags = UVC_CONTROL_SET_CUR | UVC_CONTROL_GET_RANGE @@ -42,7 +42,7 @@ static struct uvc_control_info uvc_ctrls[] = { }, { .entity = UVC_GUID_UVC_PROCESSING, - .selector = PU_CONTRAST_CONTROL, + .selector = UVC_PU_CONTRAST_CONTROL, .index = 1, .size = 2, .flags = UVC_CONTROL_SET_CUR | UVC_CONTROL_GET_RANGE @@ -50,7 +50,7 @@ static struct uvc_control_info uvc_ctrls[] = { }, { .entity = UVC_GUID_UVC_PROCESSING, - .selector = PU_HUE_CONTROL, + .selector = UVC_PU_HUE_CONTROL, .index = 2, .size = 2, .flags = UVC_CONTROL_SET_CUR | UVC_CONTROL_GET_RANGE @@ -58,7 +58,7 @@ static struct uvc_control_info uvc_ctrls[] = { }, { .entity = UVC_GUID_UVC_PROCESSING, - .selector = PU_SATURATION_CONTROL, + .selector = UVC_PU_SATURATION_CONTROL, .index = 3, .size = 2, .flags = UVC_CONTROL_SET_CUR | UVC_CONTROL_GET_RANGE @@ -66,7 +66,7 @@ static struct uvc_control_info uvc_ctrls[] = { }, { .entity = UVC_GUID_UVC_PROCESSING, - .selector = PU_SHARPNESS_CONTROL, + .selector = UVC_PU_SHARPNESS_CONTROL, .index = 4, .size = 2, .flags = UVC_CONTROL_SET_CUR | UVC_CONTROL_GET_RANGE @@ -74,7 +74,7 @@ static struct uvc_control_info uvc_ctrls[] = { }, { .entity = UVC_GUID_UVC_PROCESSING, - .selector = PU_GAMMA_CONTROL, + .selector = UVC_PU_GAMMA_CONTROL, .index = 5, .size = 2, .flags = UVC_CONTROL_SET_CUR | UVC_CONTROL_GET_RANGE @@ -82,7 +82,7 @@ static struct uvc_control_info uvc_ctrls[] = { }, { .entity = UVC_GUID_UVC_PROCESSING, - .selector = PU_WHITE_BALANCE_TEMPERATURE_CONTROL, + .selector = UVC_PU_WHITE_BALANCE_TEMPERATURE_CONTROL, .index = 6, .size = 2, .flags = UVC_CONTROL_SET_CUR | UVC_CONTROL_GET_RANGE @@ -90,7 +90,7 @@ static struct uvc_control_info uvc_ctrls[] = { }, { .entity = UVC_GUID_UVC_PROCESSING, - .selector = PU_WHITE_BALANCE_COMPONENT_CONTROL, + .selector = UVC_PU_WHITE_BALANCE_COMPONENT_CONTROL, .index = 7, .size = 4, .flags = UVC_CONTROL_SET_CUR | UVC_CONTROL_GET_RANGE @@ -98,7 +98,7 @@ static struct uvc_control_info uvc_ctrls[] = { }, { .entity = UVC_GUID_UVC_PROCESSING, - .selector = PU_BACKLIGHT_COMPENSATION_CONTROL, + .selector = UVC_PU_BACKLIGHT_COMPENSATION_CONTROL, .index = 8, .size = 2, .flags = UVC_CONTROL_SET_CUR | UVC_CONTROL_GET_RANGE @@ -106,7 +106,7 @@ static struct uvc_control_info uvc_ctrls[] = { }, { .entity = UVC_GUID_UVC_PROCESSING, - .selector = PU_GAIN_CONTROL, + .selector = UVC_PU_GAIN_CONTROL, .index = 9, .size = 2, .flags = UVC_CONTROL_SET_CUR | UVC_CONTROL_GET_RANGE @@ -114,7 +114,7 @@ static struct uvc_control_info uvc_ctrls[] = { }, { .entity = UVC_GUID_UVC_PROCESSING, - .selector = PU_POWER_LINE_FREQUENCY_CONTROL, + .selector = UVC_PU_POWER_LINE_FREQUENCY_CONTROL, .index = 10, .size = 1, .flags = UVC_CONTROL_SET_CUR | UVC_CONTROL_GET_RANGE @@ -122,7 +122,7 @@ static struct uvc_control_info uvc_ctrls[] = { }, { .entity = UVC_GUID_UVC_PROCESSING, - .selector = PU_HUE_AUTO_CONTROL, + .selector = UVC_PU_HUE_AUTO_CONTROL, .index = 11, .size = 1, .flags = UVC_CONTROL_SET_CUR | UVC_CONTROL_GET_CUR @@ -130,7 +130,7 @@ static struct uvc_control_info uvc_ctrls[] = { }, { .entity = UVC_GUID_UVC_PROCESSING, - .selector = PU_WHITE_BALANCE_TEMPERATURE_AUTO_CONTROL, + .selector = UVC_PU_WHITE_BALANCE_TEMPERATURE_AUTO_CONTROL, .index = 12, .size = 1, .flags = UVC_CONTROL_SET_CUR | UVC_CONTROL_GET_CUR @@ -138,7 +138,7 @@ static struct uvc_control_info uvc_ctrls[] = { }, { .entity = UVC_GUID_UVC_PROCESSING, - .selector = PU_WHITE_BALANCE_COMPONENT_AUTO_CONTROL, + .selector = UVC_PU_WHITE_BALANCE_COMPONENT_AUTO_CONTROL, .index = 13, .size = 1, .flags = UVC_CONTROL_SET_CUR | UVC_CONTROL_GET_CUR @@ -146,7 +146,7 @@ static struct uvc_control_info uvc_ctrls[] = { }, { .entity = UVC_GUID_UVC_PROCESSING, - .selector = PU_DIGITAL_MULTIPLIER_CONTROL, + .selector = UVC_PU_DIGITAL_MULTIPLIER_CONTROL, .index = 14, .size = 2, .flags = UVC_CONTROL_SET_CUR | UVC_CONTROL_GET_RANGE @@ -154,7 +154,7 @@ static struct uvc_control_info uvc_ctrls[] = { }, { .entity = UVC_GUID_UVC_PROCESSING, - .selector = PU_DIGITAL_MULTIPLIER_LIMIT_CONTROL, + .selector = UVC_PU_DIGITAL_MULTIPLIER_LIMIT_CONTROL, .index = 15, .size = 2, .flags = UVC_CONTROL_SET_CUR | UVC_CONTROL_GET_RANGE @@ -162,21 +162,21 @@ static struct uvc_control_info uvc_ctrls[] = { }, { .entity = UVC_GUID_UVC_PROCESSING, - .selector = PU_ANALOG_VIDEO_STANDARD_CONTROL, + .selector = UVC_PU_ANALOG_VIDEO_STANDARD_CONTROL, .index = 16, .size = 1, .flags = UVC_CONTROL_GET_CUR, }, { .entity = UVC_GUID_UVC_PROCESSING, - .selector = PU_ANALOG_LOCK_STATUS_CONTROL, + .selector = UVC_PU_ANALOG_LOCK_STATUS_CONTROL, .index = 17, .size = 1, .flags = UVC_CONTROL_GET_CUR, }, { .entity = UVC_GUID_UVC_CAMERA, - .selector = CT_SCANNING_MODE_CONTROL, + .selector = UVC_CT_SCANNING_MODE_CONTROL, .index = 0, .size = 1, .flags = UVC_CONTROL_SET_CUR | UVC_CONTROL_GET_CUR @@ -184,7 +184,7 @@ static struct uvc_control_info uvc_ctrls[] = { }, { .entity = UVC_GUID_UVC_CAMERA, - .selector = CT_AE_MODE_CONTROL, + .selector = UVC_CT_AE_MODE_CONTROL, .index = 1, .size = 1, .flags = UVC_CONTROL_SET_CUR | UVC_CONTROL_GET_CUR @@ -193,7 +193,7 @@ static struct uvc_control_info uvc_ctrls[] = { }, { .entity = UVC_GUID_UVC_CAMERA, - .selector = CT_AE_PRIORITY_CONTROL, + .selector = UVC_CT_AE_PRIORITY_CONTROL, .index = 2, .size = 1, .flags = UVC_CONTROL_SET_CUR | UVC_CONTROL_GET_CUR @@ -201,7 +201,7 @@ static struct uvc_control_info uvc_ctrls[] = { }, { .entity = UVC_GUID_UVC_CAMERA, - .selector = CT_EXPOSURE_TIME_ABSOLUTE_CONTROL, + .selector = UVC_CT_EXPOSURE_TIME_ABSOLUTE_CONTROL, .index = 3, .size = 4, .flags = UVC_CONTROL_SET_CUR | UVC_CONTROL_GET_RANGE @@ -209,7 +209,7 @@ static struct uvc_control_info uvc_ctrls[] = { }, { .entity = UVC_GUID_UVC_CAMERA, - .selector = CT_EXPOSURE_TIME_RELATIVE_CONTROL, + .selector = UVC_CT_EXPOSURE_TIME_RELATIVE_CONTROL, .index = 4, .size = 1, .flags = UVC_CONTROL_SET_CUR | UVC_CONTROL_GET_CUR @@ -217,7 +217,7 @@ static struct uvc_control_info uvc_ctrls[] = { }, { .entity = UVC_GUID_UVC_CAMERA, - .selector = CT_FOCUS_ABSOLUTE_CONTROL, + .selector = UVC_CT_FOCUS_ABSOLUTE_CONTROL, .index = 5, .size = 2, .flags = UVC_CONTROL_SET_CUR | UVC_CONTROL_GET_RANGE @@ -225,7 +225,7 @@ static struct uvc_control_info uvc_ctrls[] = { }, { .entity = UVC_GUID_UVC_CAMERA, - .selector = CT_FOCUS_RELATIVE_CONTROL, + .selector = UVC_CT_FOCUS_RELATIVE_CONTROL, .index = 6, .size = 2, .flags = UVC_CONTROL_SET_CUR | UVC_CONTROL_GET_RANGE @@ -233,7 +233,7 @@ static struct uvc_control_info uvc_ctrls[] = { }, { .entity = UVC_GUID_UVC_CAMERA, - .selector = CT_IRIS_ABSOLUTE_CONTROL, + .selector = UVC_CT_IRIS_ABSOLUTE_CONTROL, .index = 7, .size = 2, .flags = UVC_CONTROL_SET_CUR | UVC_CONTROL_GET_RANGE @@ -241,7 +241,7 @@ static struct uvc_control_info uvc_ctrls[] = { }, { .entity = UVC_GUID_UVC_CAMERA, - .selector = CT_IRIS_RELATIVE_CONTROL, + .selector = UVC_CT_IRIS_RELATIVE_CONTROL, .index = 8, .size = 1, .flags = UVC_CONTROL_SET_CUR | UVC_CONTROL_GET_CUR @@ -249,7 +249,7 @@ static struct uvc_control_info uvc_ctrls[] = { }, { .entity = UVC_GUID_UVC_CAMERA, - .selector = CT_ZOOM_ABSOLUTE_CONTROL, + .selector = UVC_CT_ZOOM_ABSOLUTE_CONTROL, .index = 9, .size = 2, .flags = UVC_CONTROL_SET_CUR | UVC_CONTROL_GET_RANGE @@ -257,7 +257,7 @@ static struct uvc_control_info uvc_ctrls[] = { }, { .entity = UVC_GUID_UVC_CAMERA, - .selector = CT_ZOOM_RELATIVE_CONTROL, + .selector = UVC_CT_ZOOM_RELATIVE_CONTROL, .index = 10, .size = 3, .flags = UVC_CONTROL_SET_CUR | UVC_CONTROL_GET_RANGE @@ -265,7 +265,7 @@ static struct uvc_control_info uvc_ctrls[] = { }, { .entity = UVC_GUID_UVC_CAMERA, - .selector = CT_PANTILT_ABSOLUTE_CONTROL, + .selector = UVC_CT_PANTILT_ABSOLUTE_CONTROL, .index = 11, .size = 8, .flags = UVC_CONTROL_SET_CUR | UVC_CONTROL_GET_RANGE @@ -273,7 +273,7 @@ static struct uvc_control_info uvc_ctrls[] = { }, { .entity = UVC_GUID_UVC_CAMERA, - .selector = CT_PANTILT_RELATIVE_CONTROL, + .selector = UVC_CT_PANTILT_RELATIVE_CONTROL, .index = 12, .size = 4, .flags = UVC_CONTROL_SET_CUR | UVC_CONTROL_GET_RANGE @@ -281,7 +281,7 @@ static struct uvc_control_info uvc_ctrls[] = { }, { .entity = UVC_GUID_UVC_CAMERA, - .selector = CT_ROLL_ABSOLUTE_CONTROL, + .selector = UVC_CT_ROLL_ABSOLUTE_CONTROL, .index = 13, .size = 2, .flags = UVC_CONTROL_SET_CUR | UVC_CONTROL_GET_RANGE @@ -289,7 +289,7 @@ static struct uvc_control_info uvc_ctrls[] = { }, { .entity = UVC_GUID_UVC_CAMERA, - .selector = CT_ROLL_RELATIVE_CONTROL, + .selector = UVC_CT_ROLL_RELATIVE_CONTROL, .index = 14, .size = 2, .flags = UVC_CONTROL_SET_CUR | UVC_CONTROL_GET_RANGE @@ -297,7 +297,7 @@ static struct uvc_control_info uvc_ctrls[] = { }, { .entity = UVC_GUID_UVC_CAMERA, - .selector = CT_FOCUS_AUTO_CONTROL, + .selector = UVC_CT_FOCUS_AUTO_CONTROL, .index = 17, .size = 1, .flags = UVC_CONTROL_SET_CUR | UVC_CONTROL_GET_CUR @@ -305,7 +305,7 @@ static struct uvc_control_info uvc_ctrls[] = { }, { .entity = UVC_GUID_UVC_CAMERA, - .selector = CT_PRIVACY_CONTROL, + .selector = UVC_CT_PRIVACY_CONTROL, .index = 18, .size = 1, .flags = UVC_CONTROL_SET_CUR | UVC_CONTROL_GET_CUR @@ -332,13 +332,13 @@ static __s32 uvc_ctrl_get_zoom(struct uvc_control_mapping *mapping, __s8 zoom = (__s8)data[0]; switch (query) { - case GET_CUR: + case UVC_GET_CUR: return (zoom == 0) ? 0 : (zoom > 0 ? data[2] : -data[2]); - case GET_MIN: - case GET_MAX: - case GET_RES: - case GET_DEF: + case UVC_GET_MIN: + case UVC_GET_MAX: + case UVC_GET_RES: + case UVC_GET_DEF: default: return data[2]; } @@ -356,7 +356,7 @@ static struct uvc_control_mapping uvc_ctrl_mappings[] = { .id = V4L2_CID_BRIGHTNESS, .name = "Brightness", .entity = UVC_GUID_UVC_PROCESSING, - .selector = PU_BRIGHTNESS_CONTROL, + .selector = UVC_PU_BRIGHTNESS_CONTROL, .size = 16, .offset = 0, .v4l2_type = V4L2_CTRL_TYPE_INTEGER, @@ -366,7 +366,7 @@ static struct uvc_control_mapping uvc_ctrl_mappings[] = { .id = V4L2_CID_CONTRAST, .name = "Contrast", .entity = UVC_GUID_UVC_PROCESSING, - .selector = PU_CONTRAST_CONTROL, + .selector = UVC_PU_CONTRAST_CONTROL, .size = 16, .offset = 0, .v4l2_type = V4L2_CTRL_TYPE_INTEGER, @@ -376,7 +376,7 @@ static struct uvc_control_mapping uvc_ctrl_mappings[] = { .id = V4L2_CID_HUE, .name = "Hue", .entity = UVC_GUID_UVC_PROCESSING, - .selector = PU_HUE_CONTROL, + .selector = UVC_PU_HUE_CONTROL, .size = 16, .offset = 0, .v4l2_type = V4L2_CTRL_TYPE_INTEGER, @@ -386,7 +386,7 @@ static struct uvc_control_mapping uvc_ctrl_mappings[] = { .id = V4L2_CID_SATURATION, .name = "Saturation", .entity = UVC_GUID_UVC_PROCESSING, - .selector = PU_SATURATION_CONTROL, + .selector = UVC_PU_SATURATION_CONTROL, .size = 16, .offset = 0, .v4l2_type = V4L2_CTRL_TYPE_INTEGER, @@ -396,7 +396,7 @@ static struct uvc_control_mapping uvc_ctrl_mappings[] = { .id = V4L2_CID_SHARPNESS, .name = "Sharpness", .entity = UVC_GUID_UVC_PROCESSING, - .selector = PU_SHARPNESS_CONTROL, + .selector = UVC_PU_SHARPNESS_CONTROL, .size = 16, .offset = 0, .v4l2_type = V4L2_CTRL_TYPE_INTEGER, @@ -406,7 +406,7 @@ static struct uvc_control_mapping uvc_ctrl_mappings[] = { .id = V4L2_CID_GAMMA, .name = "Gamma", .entity = UVC_GUID_UVC_PROCESSING, - .selector = PU_GAMMA_CONTROL, + .selector = UVC_PU_GAMMA_CONTROL, .size = 16, .offset = 0, .v4l2_type = V4L2_CTRL_TYPE_INTEGER, @@ -416,7 +416,7 @@ static struct uvc_control_mapping uvc_ctrl_mappings[] = { .id = V4L2_CID_BACKLIGHT_COMPENSATION, .name = "Backlight Compensation", .entity = UVC_GUID_UVC_PROCESSING, - .selector = PU_BACKLIGHT_COMPENSATION_CONTROL, + .selector = UVC_PU_BACKLIGHT_COMPENSATION_CONTROL, .size = 16, .offset = 0, .v4l2_type = V4L2_CTRL_TYPE_INTEGER, @@ -426,7 +426,7 @@ static struct uvc_control_mapping uvc_ctrl_mappings[] = { .id = V4L2_CID_GAIN, .name = "Gain", .entity = UVC_GUID_UVC_PROCESSING, - .selector = PU_GAIN_CONTROL, + .selector = UVC_PU_GAIN_CONTROL, .size = 16, .offset = 0, .v4l2_type = V4L2_CTRL_TYPE_INTEGER, @@ -436,7 +436,7 @@ static struct uvc_control_mapping uvc_ctrl_mappings[] = { .id = V4L2_CID_POWER_LINE_FREQUENCY, .name = "Power Line Frequency", .entity = UVC_GUID_UVC_PROCESSING, - .selector = PU_POWER_LINE_FREQUENCY_CONTROL, + .selector = UVC_PU_POWER_LINE_FREQUENCY_CONTROL, .size = 2, .offset = 0, .v4l2_type = V4L2_CTRL_TYPE_MENU, @@ -448,7 +448,7 @@ static struct uvc_control_mapping uvc_ctrl_mappings[] = { .id = V4L2_CID_HUE_AUTO, .name = "Hue, Auto", .entity = UVC_GUID_UVC_PROCESSING, - .selector = PU_HUE_AUTO_CONTROL, + .selector = UVC_PU_HUE_AUTO_CONTROL, .size = 1, .offset = 0, .v4l2_type = V4L2_CTRL_TYPE_BOOLEAN, @@ -458,7 +458,7 @@ static struct uvc_control_mapping uvc_ctrl_mappings[] = { .id = V4L2_CID_EXPOSURE_AUTO, .name = "Exposure, Auto", .entity = UVC_GUID_UVC_CAMERA, - .selector = CT_AE_MODE_CONTROL, + .selector = UVC_CT_AE_MODE_CONTROL, .size = 4, .offset = 0, .v4l2_type = V4L2_CTRL_TYPE_MENU, @@ -470,7 +470,7 @@ static struct uvc_control_mapping uvc_ctrl_mappings[] = { .id = V4L2_CID_EXPOSURE_AUTO_PRIORITY, .name = "Exposure, Auto Priority", .entity = UVC_GUID_UVC_CAMERA, - .selector = CT_AE_PRIORITY_CONTROL, + .selector = UVC_CT_AE_PRIORITY_CONTROL, .size = 1, .offset = 0, .v4l2_type = V4L2_CTRL_TYPE_BOOLEAN, @@ -480,7 +480,7 @@ static struct uvc_control_mapping uvc_ctrl_mappings[] = { .id = V4L2_CID_EXPOSURE_ABSOLUTE, .name = "Exposure (Absolute)", .entity = UVC_GUID_UVC_CAMERA, - .selector = CT_EXPOSURE_TIME_ABSOLUTE_CONTROL, + .selector = UVC_CT_EXPOSURE_TIME_ABSOLUTE_CONTROL, .size = 32, .offset = 0, .v4l2_type = V4L2_CTRL_TYPE_INTEGER, @@ -490,7 +490,7 @@ static struct uvc_control_mapping uvc_ctrl_mappings[] = { .id = V4L2_CID_AUTO_WHITE_BALANCE, .name = "White Balance Temperature, Auto", .entity = UVC_GUID_UVC_PROCESSING, - .selector = PU_WHITE_BALANCE_TEMPERATURE_AUTO_CONTROL, + .selector = UVC_PU_WHITE_BALANCE_TEMPERATURE_AUTO_CONTROL, .size = 1, .offset = 0, .v4l2_type = V4L2_CTRL_TYPE_BOOLEAN, @@ -500,7 +500,7 @@ static struct uvc_control_mapping uvc_ctrl_mappings[] = { .id = V4L2_CID_WHITE_BALANCE_TEMPERATURE, .name = "White Balance Temperature", .entity = UVC_GUID_UVC_PROCESSING, - .selector = PU_WHITE_BALANCE_TEMPERATURE_CONTROL, + .selector = UVC_PU_WHITE_BALANCE_TEMPERATURE_CONTROL, .size = 16, .offset = 0, .v4l2_type = V4L2_CTRL_TYPE_INTEGER, @@ -510,7 +510,7 @@ static struct uvc_control_mapping uvc_ctrl_mappings[] = { .id = V4L2_CID_AUTO_WHITE_BALANCE, .name = "White Balance Component, Auto", .entity = UVC_GUID_UVC_PROCESSING, - .selector = PU_WHITE_BALANCE_COMPONENT_AUTO_CONTROL, + .selector = UVC_PU_WHITE_BALANCE_COMPONENT_AUTO_CONTROL, .size = 1, .offset = 0, .v4l2_type = V4L2_CTRL_TYPE_BOOLEAN, @@ -520,7 +520,7 @@ static struct uvc_control_mapping uvc_ctrl_mappings[] = { .id = V4L2_CID_BLUE_BALANCE, .name = "White Balance Blue Component", .entity = UVC_GUID_UVC_PROCESSING, - .selector = PU_WHITE_BALANCE_COMPONENT_CONTROL, + .selector = UVC_PU_WHITE_BALANCE_COMPONENT_CONTROL, .size = 16, .offset = 0, .v4l2_type = V4L2_CTRL_TYPE_INTEGER, @@ -530,7 +530,7 @@ static struct uvc_control_mapping uvc_ctrl_mappings[] = { .id = V4L2_CID_RED_BALANCE, .name = "White Balance Red Component", .entity = UVC_GUID_UVC_PROCESSING, - .selector = PU_WHITE_BALANCE_COMPONENT_CONTROL, + .selector = UVC_PU_WHITE_BALANCE_COMPONENT_CONTROL, .size = 16, .offset = 16, .v4l2_type = V4L2_CTRL_TYPE_INTEGER, @@ -540,7 +540,7 @@ static struct uvc_control_mapping uvc_ctrl_mappings[] = { .id = V4L2_CID_FOCUS_ABSOLUTE, .name = "Focus (absolute)", .entity = UVC_GUID_UVC_CAMERA, - .selector = CT_FOCUS_ABSOLUTE_CONTROL, + .selector = UVC_CT_FOCUS_ABSOLUTE_CONTROL, .size = 16, .offset = 0, .v4l2_type = V4L2_CTRL_TYPE_INTEGER, @@ -550,7 +550,7 @@ static struct uvc_control_mapping uvc_ctrl_mappings[] = { .id = V4L2_CID_FOCUS_AUTO, .name = "Focus, Auto", .entity = UVC_GUID_UVC_CAMERA, - .selector = CT_FOCUS_AUTO_CONTROL, + .selector = UVC_CT_FOCUS_AUTO_CONTROL, .size = 1, .offset = 0, .v4l2_type = V4L2_CTRL_TYPE_BOOLEAN, @@ -560,7 +560,7 @@ static struct uvc_control_mapping uvc_ctrl_mappings[] = { .id = V4L2_CID_ZOOM_ABSOLUTE, .name = "Zoom, Absolute", .entity = UVC_GUID_UVC_CAMERA, - .selector = CT_ZOOM_ABSOLUTE_CONTROL, + .selector = UVC_CT_ZOOM_ABSOLUTE_CONTROL, .size = 16, .offset = 0, .v4l2_type = V4L2_CTRL_TYPE_INTEGER, @@ -570,7 +570,7 @@ static struct uvc_control_mapping uvc_ctrl_mappings[] = { .id = V4L2_CID_ZOOM_CONTINUOUS, .name = "Zoom, Continuous", .entity = UVC_GUID_UVC_CAMERA, - .selector = CT_ZOOM_RELATIVE_CONTROL, + .selector = UVC_CT_ZOOM_RELATIVE_CONTROL, .size = 0, .offset = 0, .v4l2_type = V4L2_CTRL_TYPE_INTEGER, @@ -582,7 +582,7 @@ static struct uvc_control_mapping uvc_ctrl_mappings[] = { .id = V4L2_CID_PRIVACY, .name = "Privacy", .entity = UVC_GUID_UVC_CAMERA, - .selector = CT_PRIVACY_CONTROL, + .selector = UVC_CT_PRIVACY_CONTROL, .size = 1, .offset = 0, .v4l2_type = V4L2_CTRL_TYPE_BOOLEAN, @@ -675,16 +675,16 @@ static const __u8 uvc_media_transport_input_guid[16] = static int uvc_entity_match_guid(struct uvc_entity *entity, __u8 guid[16]) { switch (UVC_ENTITY_TYPE(entity)) { - case ITT_CAMERA: + case UVC_ITT_CAMERA: return memcmp(uvc_camera_guid, guid, 16) == 0; - case ITT_MEDIA_TRANSPORT_INPUT: + case UVC_ITT_MEDIA_TRANSPORT_INPUT: return memcmp(uvc_media_transport_input_guid, guid, 16) == 0; - case VC_PROCESSING_UNIT: + case UVC_VC_PROCESSING_UNIT: return memcmp(uvc_processing_guid, guid, 16) == 0; - case VC_EXTENSION_UNIT: + case UVC_VC_EXTENSION_UNIT: return memcmp(entity->extension.guidExtensionCode, guid, 16) == 0; @@ -729,7 +729,7 @@ static void __uvc_find_control(struct uvc_entity *entity, __u32 v4l2_id, } } -struct uvc_control *uvc_find_control(struct uvc_video_device *video, +struct uvc_control *uvc_find_control(struct uvc_video_chain *chain, __u32 v4l2_id, struct uvc_control_mapping **mapping) { struct uvc_control *ctrl = NULL; @@ -742,17 +742,17 @@ struct uvc_control *uvc_find_control(struct uvc_video_device *video, v4l2_id &= V4L2_CTRL_ID_MASK; /* Find the control. */ - __uvc_find_control(video->processing, v4l2_id, mapping, &ctrl, next); + __uvc_find_control(chain->processing, v4l2_id, mapping, &ctrl, next); if (ctrl && !next) return ctrl; - list_for_each_entry(entity, &video->iterms, chain) { + list_for_each_entry(entity, &chain->iterms, chain) { __uvc_find_control(entity, v4l2_id, mapping, &ctrl, next); if (ctrl && !next) return ctrl; } - list_for_each_entry(entity, &video->extensions, chain) { + list_for_each_entry(entity, &chain->extensions, chain) { __uvc_find_control(entity, v4l2_id, mapping, &ctrl, next); if (ctrl && !next) return ctrl; @@ -765,7 +765,7 @@ struct uvc_control *uvc_find_control(struct uvc_video_device *video, return ctrl; } -int uvc_query_v4l2_ctrl(struct uvc_video_device *video, +int uvc_query_v4l2_ctrl(struct uvc_video_chain *chain, struct v4l2_queryctrl *v4l2_ctrl) { struct uvc_control *ctrl; @@ -775,7 +775,7 @@ int uvc_query_v4l2_ctrl(struct uvc_video_device *video, __u8 *data; int ret; - ctrl = uvc_find_control(video, v4l2_ctrl->id, &mapping); + ctrl = uvc_find_control(chain, v4l2_ctrl->id, &mapping); if (ctrl == NULL) return -EINVAL; @@ -793,11 +793,13 @@ int uvc_query_v4l2_ctrl(struct uvc_video_device *video, v4l2_ctrl->flags |= V4L2_CTRL_FLAG_READ_ONLY; if (ctrl->info->flags & UVC_CONTROL_GET_DEF) { - if ((ret = uvc_query_ctrl(video->dev, GET_DEF, ctrl->entity->id, - video->dev->intfnum, ctrl->info->selector, - data, ctrl->info->size)) < 0) + ret = uvc_query_ctrl(chain->dev, UVC_GET_DEF, ctrl->entity->id, + chain->dev->intfnum, ctrl->info->selector, + data, ctrl->info->size); + if (ret < 0) goto out; - v4l2_ctrl->default_value = mapping->get(mapping, GET_DEF, data); + v4l2_ctrl->default_value = + mapping->get(mapping, UVC_GET_DEF, data); } switch (mapping->v4l2_type) { @@ -829,25 +831,28 @@ int uvc_query_v4l2_ctrl(struct uvc_video_device *video, } if (ctrl->info->flags & UVC_CONTROL_GET_MIN) { - if ((ret = uvc_query_ctrl(video->dev, GET_MIN, ctrl->entity->id, - video->dev->intfnum, ctrl->info->selector, - data, ctrl->info->size)) < 0) + ret = uvc_query_ctrl(chain->dev, UVC_GET_MIN, ctrl->entity->id, + chain->dev->intfnum, ctrl->info->selector, + data, ctrl->info->size); + if (ret < 0) goto out; - v4l2_ctrl->minimum = mapping->get(mapping, GET_MIN, data); + v4l2_ctrl->minimum = mapping->get(mapping, UVC_GET_MIN, data); } if (ctrl->info->flags & UVC_CONTROL_GET_MAX) { - if ((ret = uvc_query_ctrl(video->dev, GET_MAX, ctrl->entity->id, - video->dev->intfnum, ctrl->info->selector, - data, ctrl->info->size)) < 0) + ret = uvc_query_ctrl(chain->dev, UVC_GET_MAX, ctrl->entity->id, + chain->dev->intfnum, ctrl->info->selector, + data, ctrl->info->size); + if (ret < 0) goto out; - v4l2_ctrl->maximum = mapping->get(mapping, GET_MAX, data); + v4l2_ctrl->maximum = mapping->get(mapping, UVC_GET_MAX, data); } if (ctrl->info->flags & UVC_CONTROL_GET_RES) { - if ((ret = uvc_query_ctrl(video->dev, GET_RES, ctrl->entity->id, - video->dev->intfnum, ctrl->info->selector, - data, ctrl->info->size)) < 0) + ret = uvc_query_ctrl(chain->dev, UVC_GET_RES, ctrl->entity->id, + chain->dev->intfnum, ctrl->info->selector, + data, ctrl->info->size); + if (ret < 0) goto out; - v4l2_ctrl->step = mapping->get(mapping, GET_RES, data); + v4l2_ctrl->step = mapping->get(mapping, UVC_GET_RES, data); } ret = 0; @@ -881,9 +886,9 @@ out: * (UVC_CTRL_DATA_BACKUP) for all dirty controls. Both functions release the * control lock. */ -int uvc_ctrl_begin(struct uvc_video_device *video) +int uvc_ctrl_begin(struct uvc_video_chain *chain) { - return mutex_lock_interruptible(&video->ctrl_mutex) ? -ERESTARTSYS : 0; + return mutex_lock_interruptible(&chain->ctrl_mutex) ? -ERESTARTSYS : 0; } static int uvc_ctrl_commit_entity(struct uvc_device *dev, @@ -912,7 +917,7 @@ static int uvc_ctrl_commit_entity(struct uvc_device *dev, continue; if (!rollback) - ret = uvc_query_ctrl(dev, SET_CUR, ctrl->entity->id, + ret = uvc_query_ctrl(dev, UVC_SET_CUR, ctrl->entity->id, dev->intfnum, ctrl->info->selector, uvc_ctrl_data(ctrl, UVC_CTRL_DATA_CURRENT), ctrl->info->size); @@ -933,34 +938,34 @@ static int uvc_ctrl_commit_entity(struct uvc_device *dev, return 0; } -int __uvc_ctrl_commit(struct uvc_video_device *video, int rollback) +int __uvc_ctrl_commit(struct uvc_video_chain *chain, int rollback) { struct uvc_entity *entity; int ret = 0; /* Find the control. */ - ret = uvc_ctrl_commit_entity(video->dev, video->processing, rollback); + ret = uvc_ctrl_commit_entity(chain->dev, chain->processing, rollback); if (ret < 0) goto done; - list_for_each_entry(entity, &video->iterms, chain) { - ret = uvc_ctrl_commit_entity(video->dev, entity, rollback); + list_for_each_entry(entity, &chain->iterms, chain) { + ret = uvc_ctrl_commit_entity(chain->dev, entity, rollback); if (ret < 0) goto done; } - list_for_each_entry(entity, &video->extensions, chain) { - ret = uvc_ctrl_commit_entity(video->dev, entity, rollback); + list_for_each_entry(entity, &chain->extensions, chain) { + ret = uvc_ctrl_commit_entity(chain->dev, entity, rollback); if (ret < 0) goto done; } done: - mutex_unlock(&video->ctrl_mutex); + mutex_unlock(&chain->ctrl_mutex); return ret; } -int uvc_ctrl_get(struct uvc_video_device *video, +int uvc_ctrl_get(struct uvc_video_chain *chain, struct v4l2_ext_control *xctrl) { struct uvc_control *ctrl; @@ -969,13 +974,13 @@ int uvc_ctrl_get(struct uvc_video_device *video, unsigned int i; int ret; - ctrl = uvc_find_control(video, xctrl->id, &mapping); + ctrl = uvc_find_control(chain, xctrl->id, &mapping); if (ctrl == NULL || (ctrl->info->flags & UVC_CONTROL_GET_CUR) == 0) return -EINVAL; if (!ctrl->loaded) { - ret = uvc_query_ctrl(video->dev, GET_CUR, ctrl->entity->id, - video->dev->intfnum, ctrl->info->selector, + ret = uvc_query_ctrl(chain->dev, UVC_GET_CUR, ctrl->entity->id, + chain->dev->intfnum, ctrl->info->selector, uvc_ctrl_data(ctrl, UVC_CTRL_DATA_CURRENT), ctrl->info->size); if (ret < 0) @@ -984,7 +989,7 @@ int uvc_ctrl_get(struct uvc_video_device *video, ctrl->loaded = 1; } - xctrl->value = mapping->get(mapping, GET_CUR, + xctrl->value = mapping->get(mapping, UVC_GET_CUR, uvc_ctrl_data(ctrl, UVC_CTRL_DATA_CURRENT)); if (mapping->v4l2_type == V4L2_CTRL_TYPE_MENU) { @@ -1000,7 +1005,7 @@ int uvc_ctrl_get(struct uvc_video_device *video, return 0; } -int uvc_ctrl_set(struct uvc_video_device *video, +int uvc_ctrl_set(struct uvc_video_chain *chain, struct v4l2_ext_control *xctrl) { struct uvc_control *ctrl; @@ -1008,7 +1013,7 @@ int uvc_ctrl_set(struct uvc_video_device *video, s32 value = xctrl->value; int ret; - ctrl = uvc_find_control(video, xctrl->id, &mapping); + ctrl = uvc_find_control(chain, xctrl->id, &mapping); if (ctrl == NULL || (ctrl->info->flags & UVC_CONTROL_SET_CUR) == 0) return -EINVAL; @@ -1023,8 +1028,8 @@ int uvc_ctrl_set(struct uvc_video_device *video, memset(uvc_ctrl_data(ctrl, UVC_CTRL_DATA_CURRENT), 0, ctrl->info->size); } else { - ret = uvc_query_ctrl(video->dev, GET_CUR, - ctrl->entity->id, video->dev->intfnum, + ret = uvc_query_ctrl(chain->dev, UVC_GET_CUR, + ctrl->entity->id, chain->dev->intfnum, ctrl->info->selector, uvc_ctrl_data(ctrl, UVC_CTRL_DATA_CURRENT), ctrl->info->size); @@ -1053,7 +1058,7 @@ int uvc_ctrl_set(struct uvc_video_device *video, * Dynamic controls */ -int uvc_xu_ctrl_query(struct uvc_video_device *video, +int uvc_xu_ctrl_query(struct uvc_video_chain *chain, struct uvc_xu_control *xctrl, int set) { struct uvc_entity *entity; @@ -1063,7 +1068,7 @@ int uvc_xu_ctrl_query(struct uvc_video_device *video, int ret; /* Find the extension unit. */ - list_for_each_entry(entity, &video->extensions, chain) { + list_for_each_entry(entity, &chain->extensions, chain) { if (entity->id == xctrl->unit) break; } @@ -1102,7 +1107,7 @@ int uvc_xu_ctrl_query(struct uvc_video_device *video, (!set && !(ctrl->info->flags & UVC_CONTROL_GET_CUR))) return -EINVAL; - if (mutex_lock_interruptible(&video->ctrl_mutex)) + if (mutex_lock_interruptible(&chain->ctrl_mutex)) return -ERESTARTSYS; memcpy(uvc_ctrl_data(ctrl, UVC_CTRL_DATA_BACKUP), @@ -1115,9 +1120,9 @@ int uvc_xu_ctrl_query(struct uvc_video_device *video, goto out; } - ret = uvc_query_ctrl(video->dev, set ? SET_CUR : GET_CUR, xctrl->unit, - video->dev->intfnum, xctrl->selector, data, - xctrl->size); + ret = uvc_query_ctrl(chain->dev, set ? UVC_SET_CUR : UVC_GET_CUR, + xctrl->unit, chain->dev->intfnum, xctrl->selector, + data, xctrl->size); if (ret < 0) goto out; @@ -1132,7 +1137,7 @@ out: uvc_ctrl_data(ctrl, UVC_CTRL_DATA_BACKUP), xctrl->size); - mutex_unlock(&video->ctrl_mutex); + mutex_unlock(&chain->ctrl_mutex); return ret; } @@ -1211,7 +1216,7 @@ static void uvc_ctrl_add_ctrl(struct uvc_device *dev, if (!found) return; - if (UVC_ENTITY_TYPE(entity) == VC_EXTENSION_UNIT) { + if (UVC_ENTITY_TYPE(entity) == UVC_VC_EXTENSION_UNIT) { /* Check if the device control information and length match * the user supplied information. */ @@ -1219,8 +1224,9 @@ static void uvc_ctrl_add_ctrl(struct uvc_device *dev, __le16 size; __u8 inf; - if ((ret = uvc_query_ctrl(dev, GET_LEN, ctrl->entity->id, - dev->intfnum, info->selector, (__u8 *)&size, 2)) < 0) { + ret = uvc_query_ctrl(dev, UVC_GET_LEN, ctrl->entity->id, + dev->intfnum, info->selector, (__u8 *)&size, 2); + if (ret < 0) { uvc_trace(UVC_TRACE_CONTROL, "GET_LEN failed on " "control " UVC_GUID_FORMAT "/%u (%d).\n", UVC_GUID_ARGS(info->entity), info->selector, @@ -1236,8 +1242,9 @@ static void uvc_ctrl_add_ctrl(struct uvc_device *dev, return; } - if ((ret = uvc_query_ctrl(dev, GET_INFO, ctrl->entity->id, - dev->intfnum, info->selector, &inf, 1)) < 0) { + ret = uvc_query_ctrl(dev, UVC_GET_INFO, ctrl->entity->id, + dev->intfnum, info->selector, &inf, 1); + if (ret < 0) { uvc_trace(UVC_TRACE_CONTROL, "GET_INFO failed on " "control " UVC_GUID_FORMAT "/%u (%d).\n", UVC_GUID_ARGS(info->entity), info->selector, @@ -1391,7 +1398,7 @@ uvc_ctrl_prune_entity(struct uvc_device *dev, struct uvc_entity *entity) unsigned int size; unsigned int i; - if (UVC_ENTITY_TYPE(entity) != VC_PROCESSING_UNIT) + if (UVC_ENTITY_TYPE(entity) != UVC_VC_PROCESSING_UNIT) return; controls = entity->processing.bmControls; @@ -1427,13 +1434,13 @@ int uvc_ctrl_init_device(struct uvc_device *dev) unsigned int bControlSize = 0, ncontrols = 0; __u8 *bmControls = NULL; - if (UVC_ENTITY_TYPE(entity) == VC_EXTENSION_UNIT) { + if (UVC_ENTITY_TYPE(entity) == UVC_VC_EXTENSION_UNIT) { bmControls = entity->extension.bmControls; bControlSize = entity->extension.bControlSize; - } else if (UVC_ENTITY_TYPE(entity) == VC_PROCESSING_UNIT) { + } else if (UVC_ENTITY_TYPE(entity) == UVC_VC_PROCESSING_UNIT) { bmControls = entity->processing.bmControls; bControlSize = entity->processing.bControlSize; - } else if (UVC_ENTITY_TYPE(entity) == ITT_CAMERA) { + } else if (UVC_ENTITY_TYPE(entity) == UVC_ITT_CAMERA) { bmControls = entity->camera.bmControls; bControlSize = entity->camera.bControlSize; } diff --git a/drivers/media/video/uvc/uvc_driver.c b/drivers/media/video/uvc/uvc_driver.c index 04b47832fa0..8756be56915 100644 --- a/drivers/media/video/uvc/uvc_driver.c +++ b/drivers/media/video/uvc/uvc_driver.c @@ -249,23 +249,23 @@ static struct uvc_entity *uvc_entity_by_reference(struct uvc_device *dev, list_for_each_entry_continue(entity, &dev->entities, list) { switch (UVC_ENTITY_TYPE(entity)) { - case TT_STREAMING: + case UVC_TT_STREAMING: if (entity->output.bSourceID == id) return entity; break; - case VC_PROCESSING_UNIT: + case UVC_VC_PROCESSING_UNIT: if (entity->processing.bSourceID == id) return entity; break; - case VC_SELECTOR_UNIT: + case UVC_VC_SELECTOR_UNIT: for (i = 0; i < entity->selector.bNrInPins; ++i) if (entity->selector.baSourceID[i] == id) return entity; break; - case VC_EXTENSION_UNIT: + case UVC_VC_EXTENSION_UNIT: for (i = 0; i < entity->extension.bNrInPins; ++i) if (entity->extension.baSourceID[i] == id) return entity; @@ -276,8 +276,20 @@ static struct uvc_entity *uvc_entity_by_reference(struct uvc_device *dev, return NULL; } +static struct uvc_streaming *uvc_stream_by_id(struct uvc_device *dev, int id) +{ + struct uvc_streaming *stream; + + list_for_each_entry(stream, &dev->streams, list) { + if (stream->header.bTerminalLink == id) + return stream; + } + + return NULL; +} + /* ------------------------------------------------------------------------ - * Descriptors handling + * Descriptors parsing */ static int uvc_parse_format(struct uvc_device *dev, @@ -297,9 +309,9 @@ static int uvc_parse_format(struct uvc_device *dev, format->index = buffer[3]; switch (buffer[2]) { - case VS_FORMAT_UNCOMPRESSED: - case VS_FORMAT_FRAME_BASED: - n = buffer[2] == VS_FORMAT_UNCOMPRESSED ? 27 : 28; + case UVC_VS_FORMAT_UNCOMPRESSED: + case UVC_VS_FORMAT_FRAME_BASED: + n = buffer[2] == UVC_VS_FORMAT_UNCOMPRESSED ? 27 : 28; if (buflen < n) { uvc_trace(UVC_TRACE_DESCR, "device %d videostreaming " "interface %d FORMAT error\n", @@ -325,16 +337,16 @@ static int uvc_parse_format(struct uvc_device *dev, } format->bpp = buffer[21]; - if (buffer[2] == VS_FORMAT_UNCOMPRESSED) { - ftype = VS_FRAME_UNCOMPRESSED; + if (buffer[2] == UVC_VS_FORMAT_UNCOMPRESSED) { + ftype = UVC_VS_FRAME_UNCOMPRESSED; } else { - ftype = VS_FRAME_FRAME_BASED; + ftype = UVC_VS_FRAME_FRAME_BASED; if (buffer[27]) format->flags = UVC_FMT_FLAG_COMPRESSED; } break; - case VS_FORMAT_MJPEG: + case UVC_VS_FORMAT_MJPEG: if (buflen < 11) { uvc_trace(UVC_TRACE_DESCR, "device %d videostreaming " "interface %d FORMAT error\n", @@ -347,10 +359,10 @@ static int uvc_parse_format(struct uvc_device *dev, format->fcc = V4L2_PIX_FMT_MJPEG; format->flags = UVC_FMT_FLAG_COMPRESSED; format->bpp = 0; - ftype = VS_FRAME_MJPEG; + ftype = UVC_VS_FRAME_MJPEG; break; - case VS_FORMAT_DV: + case UVC_VS_FORMAT_DV: if (buflen < 9) { uvc_trace(UVC_TRACE_DESCR, "device %d videostreaming " "interface %d FORMAT error\n", @@ -395,8 +407,8 @@ static int uvc_parse_format(struct uvc_device *dev, format->nframes = 1; break; - case VS_FORMAT_MPEG2TS: - case VS_FORMAT_STREAM_BASED: + case UVC_VS_FORMAT_MPEG2TS: + case UVC_VS_FORMAT_STREAM_BASED: /* Not supported yet. */ default: uvc_trace(UVC_TRACE_DESCR, "device %d videostreaming " @@ -416,7 +428,7 @@ static int uvc_parse_format(struct uvc_device *dev, */ while (buflen > 2 && buffer[2] == ftype) { frame = &format->frame[format->nframes]; - if (ftype != VS_FRAME_FRAME_BASED) + if (ftype != UVC_VS_FRAME_FRAME_BASED) n = buflen > 25 ? buffer[25] : 0; else n = buflen > 21 ? buffer[21] : 0; @@ -436,7 +448,7 @@ static int uvc_parse_format(struct uvc_device *dev, frame->wHeight = get_unaligned_le16(&buffer[7]); frame->dwMinBitRate = get_unaligned_le32(&buffer[9]); frame->dwMaxBitRate = get_unaligned_le32(&buffer[13]); - if (ftype != VS_FRAME_FRAME_BASED) { + if (ftype != UVC_VS_FRAME_FRAME_BASED) { frame->dwMaxVideoFrameBufferSize = get_unaligned_le32(&buffer[17]); frame->dwDefaultFrameInterval = @@ -491,12 +503,12 @@ static int uvc_parse_format(struct uvc_device *dev, buffer += buffer[0]; } - if (buflen > 2 && buffer[2] == VS_STILL_IMAGE_FRAME) { + if (buflen > 2 && buffer[2] == UVC_VS_STILL_IMAGE_FRAME) { buflen -= buffer[0]; buffer += buffer[0]; } - if (buflen > 2 && buffer[2] == VS_COLORFORMAT) { + if (buflen > 2 && buffer[2] == UVC_VS_COLORFORMAT) { if (buflen < 6) { uvc_trace(UVC_TRACE_DESCR, "device %d videostreaming " "interface %d COLORFORMAT error\n", @@ -530,7 +542,7 @@ static int uvc_parse_streaming(struct uvc_device *dev, int ret = -EINVAL; if (intf->cur_altsetting->desc.bInterfaceSubClass - != SC_VIDEOSTREAMING) { + != UVC_SC_VIDEOSTREAMING) { uvc_trace(UVC_TRACE_DESCR, "device %d interface %d isn't a " "video streaming interface\n", dev->udev->devnum, intf->altsetting[0].desc.bInterfaceNumber); @@ -551,6 +563,7 @@ static int uvc_parse_streaming(struct uvc_device *dev, } mutex_init(&streaming->mutex); + streaming->dev = dev; streaming->intf = usb_get_intf(intf); streaming->intfnum = intf->cur_altsetting->desc.bInterfaceNumber; @@ -589,12 +602,12 @@ static int uvc_parse_streaming(struct uvc_device *dev, /* Parse the header descriptor. */ switch (buffer[2]) { - case VS_OUTPUT_HEADER: + case UVC_VS_OUTPUT_HEADER: streaming->type = V4L2_BUF_TYPE_VIDEO_OUTPUT; size = 9; break; - case VS_INPUT_HEADER: + case UVC_VS_INPUT_HEADER: streaming->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; size = 13; break; @@ -618,7 +631,7 @@ static int uvc_parse_streaming(struct uvc_device *dev, streaming->header.bNumFormats = p; streaming->header.bEndpointAddress = buffer[6]; - if (buffer[2] == VS_INPUT_HEADER) { + if (buffer[2] == UVC_VS_INPUT_HEADER) { streaming->header.bmInfo = buffer[7]; streaming->header.bTerminalLink = buffer[8]; streaming->header.bStillCaptureMethod = buffer[9]; @@ -644,15 +657,15 @@ static int uvc_parse_streaming(struct uvc_device *dev, _buflen = buflen; /* Count the format and frame descriptors. */ - while (_buflen > 2 && _buffer[1] == CS_INTERFACE) { + while (_buflen > 2 && _buffer[1] == USB_DT_CS_INTERFACE) { switch (_buffer[2]) { - case VS_FORMAT_UNCOMPRESSED: - case VS_FORMAT_MJPEG: - case VS_FORMAT_FRAME_BASED: + case UVC_VS_FORMAT_UNCOMPRESSED: + case UVC_VS_FORMAT_MJPEG: + case UVC_VS_FORMAT_FRAME_BASED: nformats++; break; - case VS_FORMAT_DV: + case UVC_VS_FORMAT_DV: /* DV format has no frame descriptor. We will create a * dummy frame descriptor with a dummy frame interval. */ @@ -661,22 +674,22 @@ static int uvc_parse_streaming(struct uvc_device *dev, nintervals++; break; - case VS_FORMAT_MPEG2TS: - case VS_FORMAT_STREAM_BASED: + case UVC_VS_FORMAT_MPEG2TS: + case UVC_VS_FORMAT_STREAM_BASED: uvc_trace(UVC_TRACE_DESCR, "device %d videostreaming " "interface %d FORMAT %u is not supported.\n", dev->udev->devnum, alts->desc.bInterfaceNumber, _buffer[2]); break; - case VS_FRAME_UNCOMPRESSED: - case VS_FRAME_MJPEG: + case UVC_VS_FRAME_UNCOMPRESSED: + case UVC_VS_FRAME_MJPEG: nframes++; if (_buflen > 25) nintervals += _buffer[25] ? _buffer[25] : 3; break; - case VS_FRAME_FRAME_BASED: + case UVC_VS_FRAME_FRAME_BASED: nframes++; if (_buflen > 21) nintervals += _buffer[21] ? _buffer[21] : 3; @@ -709,12 +722,12 @@ static int uvc_parse_streaming(struct uvc_device *dev, streaming->nformats = nformats; /* Parse the format descriptors. */ - while (buflen > 2 && buffer[1] == CS_INTERFACE) { + while (buflen > 2 && buffer[1] == USB_DT_CS_INTERFACE) { switch (buffer[2]) { - case VS_FORMAT_UNCOMPRESSED: - case VS_FORMAT_MJPEG: - case VS_FORMAT_DV: - case VS_FORMAT_FRAME_BASED: + case UVC_VS_FORMAT_UNCOMPRESSED: + case UVC_VS_FORMAT_MJPEG: + case UVC_VS_FORMAT_DV: + case UVC_VS_FORMAT_FRAME_BASED: format->frame = frame; ret = uvc_parse_format(dev, streaming, format, &interval, buffer, buflen); @@ -751,7 +764,7 @@ static int uvc_parse_streaming(struct uvc_device *dev, streaming->maxpsize = psize; } - list_add_tail(&streaming->list, &dev->streaming); + list_add_tail(&streaming->list, &dev->streams); return 0; error: @@ -819,7 +832,7 @@ static int uvc_parse_vendor_control(struct uvc_device *dev, return -ENOMEM; unit->id = buffer[3]; - unit->type = VC_EXTENSION_UNIT; + unit->type = UVC_VC_EXTENSION_UNIT; memcpy(unit->extension.guidExtensionCode, &buffer[4], 16); unit->extension.bNumControls = buffer[20]; unit->extension.bNrInPins = get_unaligned_le16(&buffer[21]); @@ -856,7 +869,7 @@ static int uvc_parse_standard_control(struct uvc_device *dev, __u16 type; switch (buffer[2]) { - case VC_HEADER: + case UVC_VC_HEADER: n = buflen >= 12 ? buffer[11] : 0; if (buflen < 12 || buflen < 12 + n) { @@ -883,7 +896,7 @@ static int uvc_parse_standard_control(struct uvc_device *dev, } break; - case VC_INPUT_TERMINAL: + case UVC_VC_INPUT_TERMINAL: if (buflen < 8) { uvc_trace(UVC_TRACE_DESCR, "device %d videocontrol " "interface %d INPUT_TERMINAL error\n", @@ -908,11 +921,11 @@ static int uvc_parse_standard_control(struct uvc_device *dev, p = 0; len = 8; - if (type == ITT_CAMERA) { + if (type == UVC_ITT_CAMERA) { n = buflen >= 15 ? buffer[14] : 0; len = 15; - } else if (type == ITT_MEDIA_TRANSPORT_INPUT) { + } else if (type == UVC_ITT_MEDIA_TRANSPORT_INPUT) { n = buflen >= 9 ? buffer[8] : 0; p = buflen >= 10 + n ? buffer[9+n] : 0; len = 10; @@ -932,7 +945,7 @@ static int uvc_parse_standard_control(struct uvc_device *dev, term->id = buffer[3]; term->type = type | UVC_TERM_INPUT; - if (UVC_ENTITY_TYPE(term) == ITT_CAMERA) { + if (UVC_ENTITY_TYPE(term) == UVC_ITT_CAMERA) { term->camera.bControlSize = n; term->camera.bmControls = (__u8 *)term + sizeof *term; term->camera.wObjectiveFocalLengthMin = @@ -942,7 +955,8 @@ static int uvc_parse_standard_control(struct uvc_device *dev, term->camera.wOcularFocalLength = get_unaligned_le16(&buffer[12]); memcpy(term->camera.bmControls, &buffer[15], n); - } else if (UVC_ENTITY_TYPE(term) == ITT_MEDIA_TRANSPORT_INPUT) { + } else if (UVC_ENTITY_TYPE(term) == + UVC_ITT_MEDIA_TRANSPORT_INPUT) { term->media.bControlSize = n; term->media.bmControls = (__u8 *)term + sizeof *term; term->media.bTransportModeSize = p; @@ -955,9 +969,9 @@ static int uvc_parse_standard_control(struct uvc_device *dev, if (buffer[7] != 0) usb_string(udev, buffer[7], term->name, sizeof term->name); - else if (UVC_ENTITY_TYPE(term) == ITT_CAMERA) + else if (UVC_ENTITY_TYPE(term) == UVC_ITT_CAMERA) sprintf(term->name, "Camera %u", buffer[3]); - else if (UVC_ENTITY_TYPE(term) == ITT_MEDIA_TRANSPORT_INPUT) + else if (UVC_ENTITY_TYPE(term) == UVC_ITT_MEDIA_TRANSPORT_INPUT) sprintf(term->name, "Media %u", buffer[3]); else sprintf(term->name, "Input %u", buffer[3]); @@ -965,7 +979,7 @@ static int uvc_parse_standard_control(struct uvc_device *dev, list_add_tail(&term->list, &dev->entities); break; - case VC_OUTPUT_TERMINAL: + case UVC_VC_OUTPUT_TERMINAL: if (buflen < 9) { uvc_trace(UVC_TRACE_DESCR, "device %d videocontrol " "interface %d OUTPUT_TERMINAL error\n", @@ -1002,7 +1016,7 @@ static int uvc_parse_standard_control(struct uvc_device *dev, list_add_tail(&term->list, &dev->entities); break; - case VC_SELECTOR_UNIT: + case UVC_VC_SELECTOR_UNIT: p = buflen >= 5 ? buffer[4] : 0; if (buflen < 5 || buflen < 6 + p) { @@ -1031,7 +1045,7 @@ static int uvc_parse_standard_control(struct uvc_device *dev, list_add_tail(&unit->list, &dev->entities); break; - case VC_PROCESSING_UNIT: + case UVC_VC_PROCESSING_UNIT: n = buflen >= 8 ? buffer[7] : 0; p = dev->uvc_version >= 0x0110 ? 10 : 9; @@ -1066,7 +1080,7 @@ static int uvc_parse_standard_control(struct uvc_device *dev, list_add_tail(&unit->list, &dev->entities); break; - case VC_EXTENSION_UNIT: + case UVC_VC_EXTENSION_UNIT: p = buflen >= 22 ? buffer[21] : 0; n = buflen >= 24 + p ? buffer[22+p] : 0; @@ -1158,43 +1172,40 @@ next_descriptor: } /* ------------------------------------------------------------------------ - * USB probe and disconnect + * UVC device scan */ /* - * Unregister the video devices. - */ -static void uvc_unregister_video(struct uvc_device *dev) -{ - if (dev->video.vdev) { - if (dev->video.vdev->minor == -1) - video_device_release(dev->video.vdev); - else - video_unregister_device(dev->video.vdev); - dev->video.vdev = NULL; - } -} - -/* * Scan the UVC descriptors to locate a chain starting at an Output Terminal * and containing the following units: * - * - one Output Terminal (USB Streaming or Display) + * - one or more Output Terminals (USB Streaming or Display) * - zero or one Processing Unit - * - zero, one or mode single-input Selector Units + * - zero, one or more single-input Selector Units * - zero or one multiple-input Selector Units, provided all inputs are * connected to input terminals * - zero, one or mode single-input Extension Units * - one or more Input Terminals (Camera, External or USB Streaming) * - * A side forward scan is made on each detected entity to check for additional - * extension units. + * The terminal and units must match on of the following structures: + * + * ITT_*(0) -> +---------+ +---------+ +---------+ -> TT_STREAMING(0) + * ... | SU{0,1} | -> | PU{0,1} | -> | XU{0,n} | ... + * ITT_*(n) -> +---------+ +---------+ +---------+ -> TT_STREAMING(n) + * + * +---------+ +---------+ -> OTT_*(0) + * TT_STREAMING -> | PU{0,1} | -> | XU{0,n} | ... + * +---------+ +---------+ -> OTT_*(n) + * + * The Processing Unit and Extension Units can be in any order. Additional + * Extension Units connected to the main chain as single-unit branches are + * also supported. Single-input Selector Units are ignored. */ -static int uvc_scan_chain_entity(struct uvc_video_device *video, +static int uvc_scan_chain_entity(struct uvc_video_chain *chain, struct uvc_entity *entity) { switch (UVC_ENTITY_TYPE(entity)) { - case VC_EXTENSION_UNIT: + case UVC_VC_EXTENSION_UNIT: if (uvc_trace_param & UVC_TRACE_PROBE) printk(" <- XU %d", entity->id); @@ -1204,23 +1215,23 @@ static int uvc_scan_chain_entity(struct uvc_video_device *video, return -1; } - list_add_tail(&entity->chain, &video->extensions); + list_add_tail(&entity->chain, &chain->extensions); break; - case VC_PROCESSING_UNIT: + case UVC_VC_PROCESSING_UNIT: if (uvc_trace_param & UVC_TRACE_PROBE) printk(" <- PU %d", entity->id); - if (video->processing != NULL) { + if (chain->processing != NULL) { uvc_trace(UVC_TRACE_DESCR, "Found multiple " "Processing Units in chain.\n"); return -1; } - video->processing = entity; + chain->processing = entity; break; - case VC_SELECTOR_UNIT: + case UVC_VC_SELECTOR_UNIT: if (uvc_trace_param & UVC_TRACE_PROBE) printk(" <- SU %d", entity->id); @@ -1228,25 +1239,25 @@ static int uvc_scan_chain_entity(struct uvc_video_device *video, if (entity->selector.bNrInPins == 1) break; - if (video->selector != NULL) { + if (chain->selector != NULL) { uvc_trace(UVC_TRACE_DESCR, "Found multiple Selector " "Units in chain.\n"); return -1; } - video->selector = entity; + chain->selector = entity; break; - case ITT_VENDOR_SPECIFIC: - case ITT_CAMERA: - case ITT_MEDIA_TRANSPORT_INPUT: + case UVC_ITT_VENDOR_SPECIFIC: + case UVC_ITT_CAMERA: + case UVC_ITT_MEDIA_TRANSPORT_INPUT: if (uvc_trace_param & UVC_TRACE_PROBE) printk(" <- IT %d\n", entity->id); - list_add_tail(&entity->chain, &video->iterms); + list_add_tail(&entity->chain, &chain->iterms); break; - case TT_STREAMING: + case UVC_TT_STREAMING: if (uvc_trace_param & UVC_TRACE_PROBE) printk(" <- IT %d\n", entity->id); @@ -1256,14 +1267,7 @@ static int uvc_scan_chain_entity(struct uvc_video_device *video, return -1; } - if (video->sterm != NULL) { - uvc_trace(UVC_TRACE_DESCR, "Found multiple streaming " - "entities in chain.\n"); - return -1; - } - - list_add_tail(&entity->chain, &video->iterms); - video->sterm = entity; + list_add_tail(&entity->chain, &chain->iterms); break; default: @@ -1275,7 +1279,7 @@ static int uvc_scan_chain_entity(struct uvc_video_device *video, return 0; } -static int uvc_scan_chain_forward(struct uvc_video_device *video, +static int uvc_scan_chain_forward(struct uvc_video_chain *chain, struct uvc_entity *entity, struct uvc_entity *prev) { struct uvc_entity *forward; @@ -1286,28 +1290,51 @@ static int uvc_scan_chain_forward(struct uvc_video_device *video, found = 0; while (1) { - forward = uvc_entity_by_reference(video->dev, entity->id, + forward = uvc_entity_by_reference(chain->dev, entity->id, forward); if (forward == NULL) break; - - if (UVC_ENTITY_TYPE(forward) != VC_EXTENSION_UNIT || - forward == prev) + if (forward == prev) continue; - if (forward->extension.bNrInPins != 1) { - uvc_trace(UVC_TRACE_DESCR, "Extension unit %d has " - "more than 1 input pin.\n", entity->id); - return -1; - } + switch (UVC_ENTITY_TYPE(forward)) { + case UVC_VC_EXTENSION_UNIT: + if (forward->extension.bNrInPins != 1) { + uvc_trace(UVC_TRACE_DESCR, "Extension unit %d " + "has more than 1 input pin.\n", + entity->id); + return -EINVAL; + } + + list_add_tail(&forward->chain, &chain->extensions); + if (uvc_trace_param & UVC_TRACE_PROBE) { + if (!found) + printk(" (->"); - list_add_tail(&forward->chain, &video->extensions); - if (uvc_trace_param & UVC_TRACE_PROBE) { - if (!found) - printk(" (-> XU"); + printk(" XU %d", forward->id); + found = 1; + } + break; + + case UVC_OTT_VENDOR_SPECIFIC: + case UVC_OTT_DISPLAY: + case UVC_OTT_MEDIA_TRANSPORT_OUTPUT: + case UVC_TT_STREAMING: + if (UVC_ENTITY_IS_ITERM(forward)) { + uvc_trace(UVC_TRACE_DESCR, "Unsupported input " + "terminal %u.\n", forward->id); + return -EINVAL; + } - printk(" %d", forward->id); - found = 1; + list_add_tail(&forward->chain, &chain->oterms); + if (uvc_trace_param & UVC_TRACE_PROBE) { + if (!found) + printk(" (->"); + + printk(" OT %d", forward->id); + found = 1; + } + break; } } if (found) @@ -1316,22 +1343,22 @@ static int uvc_scan_chain_forward(struct uvc_video_device *video, return 0; } -static int uvc_scan_chain_backward(struct uvc_video_device *video, +static int uvc_scan_chain_backward(struct uvc_video_chain *chain, struct uvc_entity *entity) { struct uvc_entity *term; int id = -1, i; switch (UVC_ENTITY_TYPE(entity)) { - case VC_EXTENSION_UNIT: + case UVC_VC_EXTENSION_UNIT: id = entity->extension.baSourceID[0]; break; - case VC_PROCESSING_UNIT: + case UVC_VC_PROCESSING_UNIT: id = entity->processing.bSourceID; break; - case VC_SELECTOR_UNIT: + case UVC_VC_SELECTOR_UNIT: /* Single-input selector units are ignored. */ if (entity->selector.bNrInPins == 1) { id = entity->selector.baSourceID[0]; @@ -1341,10 +1368,10 @@ static int uvc_scan_chain_backward(struct uvc_video_device *video, if (uvc_trace_param & UVC_TRACE_PROBE) printk(" <- IT"); - video->selector = entity; + chain->selector = entity; for (i = 0; i < entity->selector.bNrInPins; ++i) { id = entity->selector.baSourceID[i]; - term = uvc_entity_by_id(video->dev, id); + term = uvc_entity_by_id(chain->dev, id); if (term == NULL || !UVC_ENTITY_IS_ITERM(term)) { uvc_trace(UVC_TRACE_DESCR, "Selector unit %d " "input %d isn't connected to an " @@ -1355,8 +1382,8 @@ static int uvc_scan_chain_backward(struct uvc_video_device *video, if (uvc_trace_param & UVC_TRACE_PROBE) printk(" %d", term->id); - list_add_tail(&term->chain, &video->iterms); - uvc_scan_chain_forward(video, term, entity); + list_add_tail(&term->chain, &chain->iterms); + uvc_scan_chain_forward(chain, term, entity); } if (uvc_trace_param & UVC_TRACE_PROBE) @@ -1369,125 +1396,170 @@ static int uvc_scan_chain_backward(struct uvc_video_device *video, return id; } -static int uvc_scan_chain(struct uvc_video_device *video) +static int uvc_scan_chain(struct uvc_video_chain *chain, + struct uvc_entity *oterm) { struct uvc_entity *entity, *prev; int id; - entity = video->oterm; + entity = oterm; + list_add_tail(&entity->chain, &chain->oterms); uvc_trace(UVC_TRACE_PROBE, "Scanning UVC chain: OT %d", entity->id); - if (UVC_ENTITY_TYPE(entity) == TT_STREAMING) - video->sterm = entity; - id = entity->output.bSourceID; while (id != 0) { prev = entity; - entity = uvc_entity_by_id(video->dev, id); + entity = uvc_entity_by_id(chain->dev, id); if (entity == NULL) { uvc_trace(UVC_TRACE_DESCR, "Found reference to " "unknown entity %d.\n", id); - return -1; + return -EINVAL; + } + + if (entity->chain.next || entity->chain.prev) { + uvc_trace(UVC_TRACE_DESCR, "Found reference to " + "entity %d already in chain.\n", id); + return -EINVAL; } /* Process entity */ - if (uvc_scan_chain_entity(video, entity) < 0) - return -1; + if (uvc_scan_chain_entity(chain, entity) < 0) + return -EINVAL; /* Forward scan */ - if (uvc_scan_chain_forward(video, entity, prev) < 0) - return -1; + if (uvc_scan_chain_forward(chain, entity, prev) < 0) + return -EINVAL; /* Stop when a terminal is found. */ - if (!UVC_ENTITY_IS_UNIT(entity)) + if (UVC_ENTITY_IS_TERM(entity)) break; /* Backward scan */ - id = uvc_scan_chain_backward(video, entity); + id = uvc_scan_chain_backward(chain, entity); if (id < 0) return id; } - if (video->sterm == NULL) { - uvc_trace(UVC_TRACE_DESCR, "No streaming entity found in " - "chain.\n"); - return -1; + return 0; +} + +static unsigned int uvc_print_terms(struct list_head *terms, char *buffer) +{ + struct uvc_entity *term; + unsigned int nterms = 0; + char *p = buffer; + + list_for_each_entry(term, terms, chain) { + p += sprintf(p, "%u", term->id); + if (term->chain.next != terms) { + p += sprintf(p, ","); + if (++nterms >= 4) { + p += sprintf(p, "..."); + break; + } + } } - return 0; + return p - buffer; +} + +static const char *uvc_print_chain(struct uvc_video_chain *chain) +{ + static char buffer[43]; + char *p = buffer; + + p += uvc_print_terms(&chain->iterms, p); + p += sprintf(p, " -> "); + uvc_print_terms(&chain->oterms, p); + + return buffer; } /* - * Register the video devices. - * - * The driver currently supports a single video device per control interface - * only. The terminal and units must match the following structure: + * Scan the device for video chains and register video devices. * - * ITT_* -> VC_PROCESSING_UNIT -> VC_EXTENSION_UNIT{0,n} -> TT_STREAMING - * TT_STREAMING -> VC_PROCESSING_UNIT -> VC_EXTENSION_UNIT{0,n} -> OTT_* - * - * The Extension Units, if present, must have a single input pin. The - * Processing Unit and Extension Units can be in any order. Additional - * Extension Units connected to the main chain as single-unit branches are - * also supported. + * Chains are scanned starting at their output terminals and walked backwards. */ -static int uvc_register_video(struct uvc_device *dev) +static int uvc_scan_device(struct uvc_device *dev) { - struct video_device *vdev; + struct uvc_video_chain *chain; struct uvc_entity *term; - int found = 0, ret; - /* Check if the control interface matches the structure we expect. */ list_for_each_entry(term, &dev->entities, list) { - struct uvc_streaming *streaming; - - if (!UVC_ENTITY_IS_TERM(term) || !UVC_ENTITY_IS_OTERM(term)) + if (!UVC_ENTITY_IS_OTERM(term)) continue; - memset(&dev->video, 0, sizeof dev->video); - mutex_init(&dev->video.ctrl_mutex); - INIT_LIST_HEAD(&dev->video.iterms); - INIT_LIST_HEAD(&dev->video.extensions); - dev->video.oterm = term; - dev->video.dev = dev; - if (uvc_scan_chain(&dev->video) < 0) + /* If the terminal is already included in a chain, skip it. + * This can happen for chains that have multiple output + * terminals, where all output terminals beside the first one + * will be inserted in the chain in forward scans. + */ + if (term->chain.next || term->chain.prev) continue; - list_for_each_entry(streaming, &dev->streaming, list) { - if (streaming->header.bTerminalLink == - dev->video.sterm->id) { - dev->video.streaming = streaming; - found = 1; - break; - } + chain = kzalloc(sizeof(*chain), GFP_KERNEL); + if (chain == NULL) + return -ENOMEM; + + INIT_LIST_HEAD(&chain->iterms); + INIT_LIST_HEAD(&chain->oterms); + INIT_LIST_HEAD(&chain->extensions); + mutex_init(&chain->ctrl_mutex); + chain->dev = dev; + + if (uvc_scan_chain(chain, term) < 0) { + kfree(chain); + continue; } - if (found) - break; + uvc_trace(UVC_TRACE_PROBE, "Found a valid video chain (%s).\n", + uvc_print_chain(chain)); + + list_add_tail(&chain->list, &dev->chains); } - if (!found) { + if (list_empty(&dev->chains)) { uvc_printk(KERN_INFO, "No valid video chain found.\n"); return -1; } - if (uvc_trace_param & UVC_TRACE_PROBE) { - uvc_printk(KERN_INFO, "Found a valid video chain ("); - list_for_each_entry(term, &dev->video.iterms, chain) { - printk("%d", term->id); - if (term->chain.next != &dev->video.iterms) - printk(","); - } - printk(" -> %d).\n", dev->video.oterm->id); + return 0; +} + +/* ------------------------------------------------------------------------ + * Video device registration and unregistration + */ + +/* + * Unregister the video devices. + */ +static void uvc_unregister_video(struct uvc_device *dev) +{ + struct uvc_streaming *stream; + + list_for_each_entry(stream, &dev->streams, list) { + if (stream->vdev == NULL) + continue; + + if (stream->vdev->minor == -1) + video_device_release(stream->vdev); + else + video_unregister_device(stream->vdev); + stream->vdev = NULL; } +} - /* Initialize the video buffers queue. */ - uvc_queue_init(&dev->video.queue, dev->video.streaming->type); +static int uvc_register_video(struct uvc_device *dev, + struct uvc_streaming *stream) +{ + struct video_device *vdev; + int ret; /* Initialize the streaming interface with default streaming * parameters. */ - if ((ret = uvc_video_init(&dev->video)) < 0) { + ret = uvc_video_init(stream); + if (ret < 0) { uvc_printk(KERN_ERR, "Failed to initialize the device " "(%d).\n", ret); return ret; @@ -1495,8 +1567,11 @@ static int uvc_register_video(struct uvc_device *dev) /* Register the device with V4L. */ vdev = video_device_alloc(); - if (vdev == NULL) - return -1; + if (vdev == NULL) { + uvc_printk(KERN_ERR, "Failed to allocate video device (%d).\n", + ret); + return -ENOMEM; + } /* We already hold a reference to dev->udev. The video device will be * unregistered before the reference is released, so we don't need to @@ -1511,19 +1586,74 @@ static int uvc_register_video(struct uvc_device *dev) /* Set the driver data before calling video_register_device, otherwise * uvc_v4l2_open might race us. */ - dev->video.vdev = vdev; - video_set_drvdata(vdev, &dev->video); - - if (video_register_device(vdev, VFL_TYPE_GRABBER, -1) < 0) { - dev->video.vdev = NULL; + stream->vdev = vdev; + video_set_drvdata(vdev, stream); + + ret = video_register_device(vdev, VFL_TYPE_GRABBER, -1); + if (ret < 0) { + uvc_printk(KERN_ERR, "Failed to register video device (%d).\n", + ret); + stream->vdev = NULL; video_device_release(vdev); - return -1; + return ret; } return 0; } /* + * Register all video devices in all chains. + */ +static int uvc_register_terms(struct uvc_device *dev, + struct uvc_video_chain *chain, struct list_head *terms) +{ + struct uvc_streaming *stream; + struct uvc_entity *term; + int ret; + + list_for_each_entry(term, terms, chain) { + if (UVC_ENTITY_TYPE(term) != UVC_TT_STREAMING) + continue; + + stream = uvc_stream_by_id(dev, term->id); + if (stream == NULL) { + uvc_printk(KERN_INFO, "No streaming interface found " + "for terminal %u.", term->id); + continue; + } + + stream->chain = chain; + ret = uvc_register_video(dev, stream); + if (ret < 0) + return ret; + } + + return 0; +} + +static int uvc_register_chains(struct uvc_device *dev) +{ + struct uvc_video_chain *chain; + int ret; + + list_for_each_entry(chain, &dev->chains, list) { + ret = uvc_register_terms(dev, chain, &chain->iterms); + if (ret < 0) + return ret; + + ret = uvc_register_terms(dev, chain, &chain->oterms); + if (ret < 0) + return ret; + } + + return 0; +} + +/* ------------------------------------------------------------------------ + * USB probe, disconnect, suspend and resume + */ + +/* * Delete the UVC device. * * Called by the kernel when the last reference to the uvc_device structure @@ -1544,7 +1674,7 @@ void uvc_delete(struct kref *kref) struct uvc_device *dev = container_of(kref, struct uvc_device, kref); struct list_head *p, *n; - /* Unregister the video device. */ + /* Unregister the video devices. */ uvc_unregister_video(dev); usb_put_intf(dev->intf); usb_put_dev(dev->udev); @@ -1552,13 +1682,19 @@ void uvc_delete(struct kref *kref) uvc_status_cleanup(dev); uvc_ctrl_cleanup_device(dev); + list_for_each_safe(p, n, &dev->chains) { + struct uvc_video_chain *chain; + chain = list_entry(p, struct uvc_video_chain, list); + kfree(chain); + } + list_for_each_safe(p, n, &dev->entities) { struct uvc_entity *entity; entity = list_entry(p, struct uvc_entity, list); kfree(entity); } - list_for_each_safe(p, n, &dev->streaming) { + list_for_each_safe(p, n, &dev->streams) { struct uvc_streaming *streaming; streaming = list_entry(p, struct uvc_streaming, list); usb_driver_release_interface(&uvc_driver.driver, @@ -1592,7 +1728,8 @@ static int uvc_probe(struct usb_interface *intf, return -ENOMEM; INIT_LIST_HEAD(&dev->entities); - INIT_LIST_HEAD(&dev->streaming); + INIT_LIST_HEAD(&dev->chains); + INIT_LIST_HEAD(&dev->streams); kref_init(&dev->kref); atomic_set(&dev->users, 0); @@ -1633,8 +1770,12 @@ static int uvc_probe(struct usb_interface *intf, if (uvc_ctrl_init_device(dev) < 0) goto error; - /* Register the video devices. */ - if (uvc_register_video(dev) < 0) + /* Scan the device for video chains. */ + if (uvc_scan_device(dev) < 0) + goto error; + + /* Register video devices. */ + if (uvc_register_chains(dev) < 0) goto error; /* Save our data pointer in the interface data. */ @@ -1664,7 +1805,8 @@ static void uvc_disconnect(struct usb_interface *intf) */ usb_set_intfdata(intf, NULL); - if (intf->cur_altsetting->desc.bInterfaceSubClass == SC_VIDEOSTREAMING) + if (intf->cur_altsetting->desc.bInterfaceSubClass == + UVC_SC_VIDEOSTREAMING) return; /* uvc_v4l2_open() might race uvc_disconnect(). A static driver-wide @@ -1687,31 +1829,36 @@ static void uvc_disconnect(struct usb_interface *intf) static int uvc_suspend(struct usb_interface *intf, pm_message_t message) { struct uvc_device *dev = usb_get_intfdata(intf); + struct uvc_streaming *stream; uvc_trace(UVC_TRACE_SUSPEND, "Suspending interface %u\n", intf->cur_altsetting->desc.bInterfaceNumber); /* Controls are cached on the fly so they don't need to be saved. */ - if (intf->cur_altsetting->desc.bInterfaceSubClass == SC_VIDEOCONTROL) + if (intf->cur_altsetting->desc.bInterfaceSubClass == + UVC_SC_VIDEOCONTROL) return uvc_status_suspend(dev); - if (dev->video.streaming->intf != intf) { - uvc_trace(UVC_TRACE_SUSPEND, "Suspend: video streaming USB " - "interface mismatch.\n"); - return -EINVAL; + list_for_each_entry(stream, &dev->streams, list) { + if (stream->intf == intf) + return uvc_video_suspend(stream); } - return uvc_video_suspend(&dev->video); + uvc_trace(UVC_TRACE_SUSPEND, "Suspend: video streaming USB interface " + "mismatch.\n"); + return -EINVAL; } static int __uvc_resume(struct usb_interface *intf, int reset) { struct uvc_device *dev = usb_get_intfdata(intf); + struct uvc_streaming *stream; uvc_trace(UVC_TRACE_SUSPEND, "Resuming interface %u\n", intf->cur_altsetting->desc.bInterfaceNumber); - if (intf->cur_altsetting->desc.bInterfaceSubClass == SC_VIDEOCONTROL) { + if (intf->cur_altsetting->desc.bInterfaceSubClass == + UVC_SC_VIDEOCONTROL) { if (reset) { int ret = uvc_ctrl_resume_device(dev); @@ -1722,13 +1869,14 @@ static int __uvc_resume(struct usb_interface *intf, int reset) return uvc_status_resume(dev); } - if (dev->video.streaming->intf != intf) { - uvc_trace(UVC_TRACE_SUSPEND, "Resume: video streaming USB " - "interface mismatch.\n"); - return -EINVAL; + list_for_each_entry(stream, &dev->streams, list) { + if (stream->intf == intf) + return uvc_video_resume(stream); } - return uvc_video_resume(&dev->video); + uvc_trace(UVC_TRACE_SUSPEND, "Resume: video streaming USB interface " + "mismatch.\n"); + return -EINVAL; } static int uvc_resume(struct usb_interface *intf) @@ -1880,7 +2028,8 @@ static struct usb_device_id uvc_ids[] = { .bInterfaceClass = USB_CLASS_VIDEO, .bInterfaceSubClass = 1, .bInterfaceProtocol = 0, - .driver_info = UVC_QUIRK_PROBE_MINMAX }, + .driver_info = UVC_QUIRK_PROBE_MINMAX + | UVC_QUIRK_PROBE_DEF }, /* Syntek (HP Spartan) */ { .match_flags = USB_DEVICE_ID_MATCH_DEVICE | USB_DEVICE_ID_MATCH_INT_INFO, @@ -1943,7 +2092,8 @@ static struct usb_device_id uvc_ids[] = { .bInterfaceClass = USB_CLASS_VIDEO, .bInterfaceSubClass = 1, .bInterfaceProtocol = 0, - .driver_info = UVC_QUIRK_PROBE_EXTRAFIELDS }, + .driver_info = UVC_QUIRK_PROBE_MINMAX + | UVC_QUIRK_PROBE_EXTRAFIELDS }, /* Ecamm Pico iMage */ { .match_flags = USB_DEVICE_ID_MATCH_DEVICE | USB_DEVICE_ID_MATCH_INT_INFO, diff --git a/drivers/media/video/uvc/uvc_isight.c b/drivers/media/video/uvc/uvc_isight.c index 436f462685a..a9285b570db 100644 --- a/drivers/media/video/uvc/uvc_isight.c +++ b/drivers/media/video/uvc/uvc_isight.c @@ -99,7 +99,7 @@ static int isight_decode(struct uvc_video_queue *queue, struct uvc_buffer *buf, return 0; } -void uvc_video_decode_isight(struct urb *urb, struct uvc_video_device *video, +void uvc_video_decode_isight(struct urb *urb, struct uvc_streaming *stream, struct uvc_buffer *buf) { int ret, i; @@ -120,7 +120,7 @@ void uvc_video_decode_isight(struct urb *urb, struct uvc_video_device *video, * processes the data of the first payload of the new frame. */ do { - ret = isight_decode(&video->queue, buf, + ret = isight_decode(&stream->queue, buf, urb->transfer_buffer + urb->iso_frame_desc[i].offset, urb->iso_frame_desc[i].actual_length); @@ -130,7 +130,8 @@ void uvc_video_decode_isight(struct urb *urb, struct uvc_video_device *video, if (buf->state == UVC_BUF_STATE_DONE || buf->state == UVC_BUF_STATE_ERROR) - buf = uvc_queue_next_buffer(&video->queue, buf); + buf = uvc_queue_next_buffer(&stream->queue, + buf); } while (ret == -EAGAIN); } } diff --git a/drivers/media/video/uvc/uvc_v4l2.c b/drivers/media/video/uvc/uvc_v4l2.c index 5e77cad2969..9e7351569b5 100644 --- a/drivers/media/video/uvc/uvc_v4l2.c +++ b/drivers/media/video/uvc/uvc_v4l2.c @@ -40,7 +40,7 @@ * table for the controls that can be mapped directly, and handle the others * manually. */ -static int uvc_v4l2_query_menu(struct uvc_video_device *video, +static int uvc_v4l2_query_menu(struct uvc_video_chain *chain, struct v4l2_querymenu *query_menu) { struct uvc_menu_info *menu_info; @@ -49,7 +49,7 @@ static int uvc_v4l2_query_menu(struct uvc_video_device *video, u32 index = query_menu->index; u32 id = query_menu->id; - ctrl = uvc_find_control(video, query_menu->id, &mapping); + ctrl = uvc_find_control(chain, query_menu->id, &mapping); if (ctrl == NULL || mapping->v4l2_type != V4L2_CTRL_TYPE_MENU) return -EINVAL; @@ -103,7 +103,7 @@ static __u32 uvc_try_frame_interval(struct uvc_frame *frame, __u32 interval) return interval; } -static int uvc_v4l2_try_format(struct uvc_video_device *video, +static int uvc_v4l2_try_format(struct uvc_streaming *stream, struct v4l2_format *fmt, struct uvc_streaming_control *probe, struct uvc_format **uvc_format, struct uvc_frame **uvc_frame) { @@ -116,7 +116,7 @@ static int uvc_v4l2_try_format(struct uvc_video_device *video, int ret = 0; __u8 *fcc; - if (fmt->type != video->streaming->type) + if (fmt->type != stream->type) return -EINVAL; fcc = (__u8 *)&fmt->fmt.pix.pixelformat; @@ -126,8 +126,8 @@ static int uvc_v4l2_try_format(struct uvc_video_device *video, fmt->fmt.pix.width, fmt->fmt.pix.height); /* Check if the hardware supports the requested format. */ - for (i = 0; i < video->streaming->nformats; ++i) { - format = &video->streaming->format[i]; + for (i = 0; i < stream->nformats; ++i) { + format = &stream->format[i]; if (format->fcc == fmt->fmt.pix.pixelformat) break; } @@ -191,12 +191,13 @@ static int uvc_v4l2_try_format(struct uvc_video_device *video, * developers test their webcams with the Linux driver as well as with * the Windows driver). */ - if (video->dev->quirks & UVC_QUIRK_PROBE_EXTRAFIELDS) + if (stream->dev->quirks & UVC_QUIRK_PROBE_EXTRAFIELDS) probe->dwMaxVideoFrameSize = - video->streaming->ctrl.dwMaxVideoFrameSize; + stream->ctrl.dwMaxVideoFrameSize; /* Probe the device. */ - if ((ret = uvc_probe_video(video, probe)) < 0) + ret = uvc_probe_video(stream, probe); + if (ret < 0) goto done; fmt->fmt.pix.width = frame->wWidth; @@ -216,13 +217,13 @@ done: return ret; } -static int uvc_v4l2_get_format(struct uvc_video_device *video, +static int uvc_v4l2_get_format(struct uvc_streaming *stream, struct v4l2_format *fmt) { - struct uvc_format *format = video->streaming->cur_format; - struct uvc_frame *frame = video->streaming->cur_frame; + struct uvc_format *format = stream->cur_format; + struct uvc_frame *frame = stream->cur_frame; - if (fmt->type != video->streaming->type) + if (fmt->type != stream->type) return -EINVAL; if (format == NULL || frame == NULL) @@ -233,14 +234,14 @@ static int uvc_v4l2_get_format(struct uvc_video_device *video, fmt->fmt.pix.height = frame->wHeight; fmt->fmt.pix.field = V4L2_FIELD_NONE; fmt->fmt.pix.bytesperline = format->bpp * frame->wWidth / 8; - fmt->fmt.pix.sizeimage = video->streaming->ctrl.dwMaxVideoFrameSize; + fmt->fmt.pix.sizeimage = stream->ctrl.dwMaxVideoFrameSize; fmt->fmt.pix.colorspace = format->colorspace; fmt->fmt.pix.priv = 0; return 0; } -static int uvc_v4l2_set_format(struct uvc_video_device *video, +static int uvc_v4l2_set_format(struct uvc_streaming *stream, struct v4l2_format *fmt) { struct uvc_streaming_control probe; @@ -248,39 +249,39 @@ static int uvc_v4l2_set_format(struct uvc_video_device *video, struct uvc_frame *frame; int ret; - if (fmt->type != video->streaming->type) + if (fmt->type != stream->type) return -EINVAL; - if (uvc_queue_allocated(&video->queue)) + if (uvc_queue_allocated(&stream->queue)) return -EBUSY; - ret = uvc_v4l2_try_format(video, fmt, &probe, &format, &frame); + ret = uvc_v4l2_try_format(stream, fmt, &probe, &format, &frame); if (ret < 0) return ret; - memcpy(&video->streaming->ctrl, &probe, sizeof probe); - video->streaming->cur_format = format; - video->streaming->cur_frame = frame; + memcpy(&stream->ctrl, &probe, sizeof probe); + stream->cur_format = format; + stream->cur_frame = frame; return 0; } -static int uvc_v4l2_get_streamparm(struct uvc_video_device *video, +static int uvc_v4l2_get_streamparm(struct uvc_streaming *stream, struct v4l2_streamparm *parm) { uint32_t numerator, denominator; - if (parm->type != video->streaming->type) + if (parm->type != stream->type) return -EINVAL; - numerator = video->streaming->ctrl.dwFrameInterval; + numerator = stream->ctrl.dwFrameInterval; denominator = 10000000; uvc_simplify_fraction(&numerator, &denominator, 8, 333); memset(parm, 0, sizeof *parm); - parm->type = video->streaming->type; + parm->type = stream->type; - if (video->streaming->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) { + if (stream->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) { parm->parm.capture.capability = V4L2_CAP_TIMEPERFRAME; parm->parm.capture.capturemode = 0; parm->parm.capture.timeperframe.numerator = numerator; @@ -297,19 +298,19 @@ static int uvc_v4l2_get_streamparm(struct uvc_video_device *video, return 0; } -static int uvc_v4l2_set_streamparm(struct uvc_video_device *video, +static int uvc_v4l2_set_streamparm(struct uvc_streaming *stream, struct v4l2_streamparm *parm) { - struct uvc_frame *frame = video->streaming->cur_frame; + struct uvc_frame *frame = stream->cur_frame; struct uvc_streaming_control probe; struct v4l2_fract timeperframe; uint32_t interval; int ret; - if (parm->type != video->streaming->type) + if (parm->type != stream->type) return -EINVAL; - if (uvc_queue_streaming(&video->queue)) + if (uvc_queue_streaming(&stream->queue)) return -EBUSY; if (parm->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) @@ -317,7 +318,7 @@ static int uvc_v4l2_set_streamparm(struct uvc_video_device *video, else timeperframe = parm->parm.output.timeperframe; - memcpy(&probe, &video->streaming->ctrl, sizeof probe); + memcpy(&probe, &stream->ctrl, sizeof probe); interval = uvc_fraction_to_interval(timeperframe.numerator, timeperframe.denominator); @@ -326,10 +327,11 @@ static int uvc_v4l2_set_streamparm(struct uvc_video_device *video, probe.dwFrameInterval = uvc_try_frame_interval(frame, interval); /* Probe the device with the new settings. */ - if ((ret = uvc_probe_video(video, &probe)) < 0) + ret = uvc_probe_video(stream, &probe); + if (ret < 0) return ret; - memcpy(&video->streaming->ctrl, &probe, sizeof probe); + memcpy(&stream->ctrl, &probe, sizeof probe); /* Return the actual frame period. */ timeperframe.numerator = probe.dwFrameInterval; @@ -382,8 +384,8 @@ static int uvc_acquire_privileges(struct uvc_fh *handle) /* Check if the device already has a privileged handle. */ mutex_lock(&uvc_driver.open_mutex); - if (atomic_inc_return(&handle->device->active) != 1) { - atomic_dec(&handle->device->active); + if (atomic_inc_return(&handle->stream->active) != 1) { + atomic_dec(&handle->stream->active); ret = -EBUSY; goto done; } @@ -398,7 +400,7 @@ done: static void uvc_dismiss_privileges(struct uvc_fh *handle) { if (handle->state == UVC_HANDLE_ACTIVE) - atomic_dec(&handle->device->active); + atomic_dec(&handle->stream->active); handle->state = UVC_HANDLE_PASSIVE; } @@ -414,45 +416,47 @@ static int uvc_has_privileges(struct uvc_fh *handle) static int uvc_v4l2_open(struct file *file) { - struct uvc_video_device *video; + struct uvc_streaming *stream; struct uvc_fh *handle; int ret = 0; uvc_trace(UVC_TRACE_CALLS, "uvc_v4l2_open\n"); mutex_lock(&uvc_driver.open_mutex); - video = video_drvdata(file); + stream = video_drvdata(file); - if (video->dev->state & UVC_DEV_DISCONNECTED) { + if (stream->dev->state & UVC_DEV_DISCONNECTED) { ret = -ENODEV; goto done; } - ret = usb_autopm_get_interface(video->dev->intf); + ret = usb_autopm_get_interface(stream->dev->intf); if (ret < 0) goto done; /* Create the device handle. */ handle = kzalloc(sizeof *handle, GFP_KERNEL); if (handle == NULL) { - usb_autopm_put_interface(video->dev->intf); + usb_autopm_put_interface(stream->dev->intf); ret = -ENOMEM; goto done; } - if (atomic_inc_return(&video->dev->users) == 1) { - if ((ret = uvc_status_start(video->dev)) < 0) { - usb_autopm_put_interface(video->dev->intf); - atomic_dec(&video->dev->users); + if (atomic_inc_return(&stream->dev->users) == 1) { + ret = uvc_status_start(stream->dev); + if (ret < 0) { + usb_autopm_put_interface(stream->dev->intf); + atomic_dec(&stream->dev->users); kfree(handle); goto done; } } - handle->device = video; + handle->chain = stream->chain; + handle->stream = stream; handle->state = UVC_HANDLE_PASSIVE; file->private_data = handle; - kref_get(&video->dev->kref); + kref_get(&stream->dev->kref); done: mutex_unlock(&uvc_driver.open_mutex); @@ -461,20 +465,20 @@ done: static int uvc_v4l2_release(struct file *file) { - struct uvc_video_device *video = video_drvdata(file); struct uvc_fh *handle = (struct uvc_fh *)file->private_data; + struct uvc_streaming *stream = handle->stream; uvc_trace(UVC_TRACE_CALLS, "uvc_v4l2_release\n"); /* Only free resources if this is a privileged handle. */ if (uvc_has_privileges(handle)) { - uvc_video_enable(video, 0); + uvc_video_enable(stream, 0); - mutex_lock(&video->queue.mutex); - if (uvc_free_buffers(&video->queue) < 0) + mutex_lock(&stream->queue.mutex); + if (uvc_free_buffers(&stream->queue) < 0) uvc_printk(KERN_ERR, "uvc_v4l2_release: Unable to " "free buffers.\n"); - mutex_unlock(&video->queue.mutex); + mutex_unlock(&stream->queue.mutex); } /* Release the file handle. */ @@ -482,19 +486,20 @@ static int uvc_v4l2_release(struct file *file) kfree(handle); file->private_data = NULL; - if (atomic_dec_return(&video->dev->users) == 0) - uvc_status_stop(video->dev); + if (atomic_dec_return(&stream->dev->users) == 0) + uvc_status_stop(stream->dev); - usb_autopm_put_interface(video->dev->intf); - kref_put(&video->dev->kref, uvc_delete); + usb_autopm_put_interface(stream->dev->intf); + kref_put(&stream->dev->kref, uvc_delete); return 0; } static long uvc_v4l2_do_ioctl(struct file *file, unsigned int cmd, void *arg) { struct video_device *vdev = video_devdata(file); - struct uvc_video_device *video = video_get_drvdata(vdev); struct uvc_fh *handle = (struct uvc_fh *)file->private_data; + struct uvc_video_chain *chain = handle->chain; + struct uvc_streaming *stream = handle->stream; long ret = 0; switch (cmd) { @@ -506,10 +511,10 @@ static long uvc_v4l2_do_ioctl(struct file *file, unsigned int cmd, void *arg) memset(cap, 0, sizeof *cap); strlcpy(cap->driver, "uvcvideo", sizeof cap->driver); strlcpy(cap->card, vdev->name, sizeof cap->card); - usb_make_path(video->dev->udev, + usb_make_path(stream->dev->udev, cap->bus_info, sizeof(cap->bus_info)); cap->version = DRIVER_VERSION_NUMBER; - if (video->streaming->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) + if (stream->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) cap->capabilities = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_STREAMING; else @@ -520,7 +525,7 @@ static long uvc_v4l2_do_ioctl(struct file *file, unsigned int cmd, void *arg) /* Get, Set & Query control */ case VIDIOC_QUERYCTRL: - return uvc_query_v4l2_ctrl(video, arg); + return uvc_query_v4l2_ctrl(chain, arg); case VIDIOC_G_CTRL: { @@ -530,12 +535,12 @@ static long uvc_v4l2_do_ioctl(struct file *file, unsigned int cmd, void *arg) memset(&xctrl, 0, sizeof xctrl); xctrl.id = ctrl->id; - ret = uvc_ctrl_begin(video); - if (ret < 0) + ret = uvc_ctrl_begin(chain); + if (ret < 0) return ret; - ret = uvc_ctrl_get(video, &xctrl); - uvc_ctrl_rollback(video); + ret = uvc_ctrl_get(chain, &xctrl); + uvc_ctrl_rollback(chain); if (ret >= 0) ctrl->value = xctrl.value; break; @@ -550,21 +555,21 @@ static long uvc_v4l2_do_ioctl(struct file *file, unsigned int cmd, void *arg) xctrl.id = ctrl->id; xctrl.value = ctrl->value; - ret = uvc_ctrl_begin(video); - if (ret < 0) + uvc_ctrl_begin(chain); + if (ret < 0) return ret; - ret = uvc_ctrl_set(video, &xctrl); + ret = uvc_ctrl_set(chain, &xctrl); if (ret < 0) { - uvc_ctrl_rollback(video); + uvc_ctrl_rollback(chain); return ret; } - ret = uvc_ctrl_commit(video); + ret = uvc_ctrl_commit(chain); break; } case VIDIOC_QUERYMENU: - return uvc_v4l2_query_menu(video, arg); + return uvc_v4l2_query_menu(chain, arg); case VIDIOC_G_EXT_CTRLS: { @@ -572,20 +577,20 @@ static long uvc_v4l2_do_ioctl(struct file *file, unsigned int cmd, void *arg) struct v4l2_ext_control *ctrl = ctrls->controls; unsigned int i; - ret = uvc_ctrl_begin(video); - if (ret < 0) + ret = uvc_ctrl_begin(chain); + if (ret < 0) return ret; for (i = 0; i < ctrls->count; ++ctrl, ++i) { - ret = uvc_ctrl_get(video, ctrl); + ret = uvc_ctrl_get(chain, ctrl); if (ret < 0) { - uvc_ctrl_rollback(video); + uvc_ctrl_rollback(chain); ctrls->error_idx = i; return ret; } } ctrls->error_idx = 0; - ret = uvc_ctrl_rollback(video); + ret = uvc_ctrl_rollback(chain); break; } @@ -596,14 +601,14 @@ static long uvc_v4l2_do_ioctl(struct file *file, unsigned int cmd, void *arg) struct v4l2_ext_control *ctrl = ctrls->controls; unsigned int i; - ret = uvc_ctrl_begin(video); + ret = uvc_ctrl_begin(chain); if (ret < 0) return ret; for (i = 0; i < ctrls->count; ++ctrl, ++i) { - ret = uvc_ctrl_set(video, ctrl); + ret = uvc_ctrl_set(chain, ctrl); if (ret < 0) { - uvc_ctrl_rollback(video); + uvc_ctrl_rollback(chain); ctrls->error_idx = i; return ret; } @@ -612,31 +617,31 @@ static long uvc_v4l2_do_ioctl(struct file *file, unsigned int cmd, void *arg) ctrls->error_idx = 0; if (cmd == VIDIOC_S_EXT_CTRLS) - ret = uvc_ctrl_commit(video); + ret = uvc_ctrl_commit(chain); else - ret = uvc_ctrl_rollback(video); + ret = uvc_ctrl_rollback(chain); break; } /* Get, Set & Enum input */ case VIDIOC_ENUMINPUT: { - const struct uvc_entity *selector = video->selector; + const struct uvc_entity *selector = chain->selector; struct v4l2_input *input = arg; struct uvc_entity *iterm = NULL; u32 index = input->index; int pin = 0; if (selector == NULL || - (video->dev->quirks & UVC_QUIRK_IGNORE_SELECTOR_UNIT)) { + (chain->dev->quirks & UVC_QUIRK_IGNORE_SELECTOR_UNIT)) { if (index != 0) return -EINVAL; - iterm = list_first_entry(&video->iterms, + iterm = list_first_entry(&chain->iterms, struct uvc_entity, chain); pin = iterm->id; } else if (pin < selector->selector.bNrInPins) { pin = selector->selector.baSourceID[index]; - list_for_each_entry(iterm, video->iterms.next, chain) { + list_for_each_entry(iterm, chain->iterms.next, chain) { if (iterm->id == pin) break; } @@ -648,7 +653,7 @@ static long uvc_v4l2_do_ioctl(struct file *file, unsigned int cmd, void *arg) memset(input, 0, sizeof *input); input->index = index; strlcpy(input->name, iterm->name, sizeof input->name); - if (UVC_ENTITY_TYPE(iterm) == ITT_CAMERA) + if (UVC_ENTITY_TYPE(iterm) == UVC_ITT_CAMERA) input->type = V4L2_INPUT_TYPE_CAMERA; break; } @@ -657,15 +662,15 @@ static long uvc_v4l2_do_ioctl(struct file *file, unsigned int cmd, void *arg) { u8 input; - if (video->selector == NULL || - (video->dev->quirks & UVC_QUIRK_IGNORE_SELECTOR_UNIT)) { + if (chain->selector == NULL || + (chain->dev->quirks & UVC_QUIRK_IGNORE_SELECTOR_UNIT)) { *(int *)arg = 0; break; } - ret = uvc_query_ctrl(video->dev, GET_CUR, video->selector->id, - video->dev->intfnum, SU_INPUT_SELECT_CONTROL, - &input, 1); + ret = uvc_query_ctrl(chain->dev, UVC_GET_CUR, + chain->selector->id, chain->dev->intfnum, + UVC_SU_INPUT_SELECT_CONTROL, &input, 1); if (ret < 0) return ret; @@ -680,19 +685,19 @@ static long uvc_v4l2_do_ioctl(struct file *file, unsigned int cmd, void *arg) if ((ret = uvc_acquire_privileges(handle)) < 0) return ret; - if (video->selector == NULL || - (video->dev->quirks & UVC_QUIRK_IGNORE_SELECTOR_UNIT)) { + if (chain->selector == NULL || + (chain->dev->quirks & UVC_QUIRK_IGNORE_SELECTOR_UNIT)) { if (input != 1) return -EINVAL; break; } - if (input == 0 || input > video->selector->selector.bNrInPins) + if (input == 0 || input > chain->selector->selector.bNrInPins) return -EINVAL; - return uvc_query_ctrl(video->dev, SET_CUR, video->selector->id, - video->dev->intfnum, SU_INPUT_SELECT_CONTROL, - &input, 1); + return uvc_query_ctrl(chain->dev, UVC_SET_CUR, + chain->selector->id, chain->dev->intfnum, + UVC_SU_INPUT_SELECT_CONTROL, &input, 1); } /* Try, Get, Set & Enum format */ @@ -703,15 +708,15 @@ static long uvc_v4l2_do_ioctl(struct file *file, unsigned int cmd, void *arg) enum v4l2_buf_type type = fmt->type; __u32 index = fmt->index; - if (fmt->type != video->streaming->type || - fmt->index >= video->streaming->nformats) + if (fmt->type != stream->type || + fmt->index >= stream->nformats) return -EINVAL; memset(fmt, 0, sizeof(*fmt)); fmt->index = index; fmt->type = type; - format = &video->streaming->format[fmt->index]; + format = &stream->format[fmt->index]; fmt->flags = 0; if (format->flags & UVC_FMT_FLAG_COMPRESSED) fmt->flags |= V4L2_FMT_FLAG_COMPRESSED; @@ -729,17 +734,17 @@ static long uvc_v4l2_do_ioctl(struct file *file, unsigned int cmd, void *arg) if ((ret = uvc_acquire_privileges(handle)) < 0) return ret; - return uvc_v4l2_try_format(video, arg, &probe, NULL, NULL); + return uvc_v4l2_try_format(stream, arg, &probe, NULL, NULL); } case VIDIOC_S_FMT: if ((ret = uvc_acquire_privileges(handle)) < 0) return ret; - return uvc_v4l2_set_format(video, arg); + return uvc_v4l2_set_format(stream, arg); case VIDIOC_G_FMT: - return uvc_v4l2_get_format(video, arg); + return uvc_v4l2_get_format(stream, arg); /* Frame size enumeration */ case VIDIOC_ENUM_FRAMESIZES: @@ -750,10 +755,10 @@ static long uvc_v4l2_do_ioctl(struct file *file, unsigned int cmd, void *arg) int i; /* Look for the given pixel format */ - for (i = 0; i < video->streaming->nformats; i++) { - if (video->streaming->format[i].fcc == + for (i = 0; i < stream->nformats; i++) { + if (stream->format[i].fcc == fsize->pixel_format) { - format = &video->streaming->format[i]; + format = &stream->format[i]; break; } } @@ -779,10 +784,10 @@ static long uvc_v4l2_do_ioctl(struct file *file, unsigned int cmd, void *arg) int i; /* Look for the given pixel format and frame size */ - for (i = 0; i < video->streaming->nformats; i++) { - if (video->streaming->format[i].fcc == + for (i = 0; i < stream->nformats; i++) { + if (stream->format[i].fcc == fival->pixel_format) { - format = &video->streaming->format[i]; + format = &stream->format[i]; break; } } @@ -832,21 +837,21 @@ static long uvc_v4l2_do_ioctl(struct file *file, unsigned int cmd, void *arg) /* Get & Set streaming parameters */ case VIDIOC_G_PARM: - return uvc_v4l2_get_streamparm(video, arg); + return uvc_v4l2_get_streamparm(stream, arg); case VIDIOC_S_PARM: if ((ret = uvc_acquire_privileges(handle)) < 0) return ret; - return uvc_v4l2_set_streamparm(video, arg); + return uvc_v4l2_set_streamparm(stream, arg); /* Cropping and scaling */ case VIDIOC_CROPCAP: { struct v4l2_cropcap *ccap = arg; - struct uvc_frame *frame = video->streaming->cur_frame; + struct uvc_frame *frame = stream->cur_frame; - if (ccap->type != video->streaming->type) + if (ccap->type != stream->type) return -EINVAL; ccap->bounds.left = 0; @@ -870,16 +875,16 @@ static long uvc_v4l2_do_ioctl(struct file *file, unsigned int cmd, void *arg) { struct v4l2_requestbuffers *rb = arg; unsigned int bufsize = - video->streaming->ctrl.dwMaxVideoFrameSize; + stream->ctrl.dwMaxVideoFrameSize; - if (rb->type != video->streaming->type || + if (rb->type != stream->type || rb->memory != V4L2_MEMORY_MMAP) return -EINVAL; if ((ret = uvc_acquire_privileges(handle)) < 0) return ret; - ret = uvc_alloc_buffers(&video->queue, rb->count, bufsize); + ret = uvc_alloc_buffers(&stream->queue, rb->count, bufsize); if (ret < 0) return ret; @@ -892,39 +897,40 @@ static long uvc_v4l2_do_ioctl(struct file *file, unsigned int cmd, void *arg) { struct v4l2_buffer *buf = arg; - if (buf->type != video->streaming->type) + if (buf->type != stream->type) return -EINVAL; if (!uvc_has_privileges(handle)) return -EBUSY; - return uvc_query_buffer(&video->queue, buf); + return uvc_query_buffer(&stream->queue, buf); } case VIDIOC_QBUF: if (!uvc_has_privileges(handle)) return -EBUSY; - return uvc_queue_buffer(&video->queue, arg); + return uvc_queue_buffer(&stream->queue, arg); case VIDIOC_DQBUF: if (!uvc_has_privileges(handle)) return -EBUSY; - return uvc_dequeue_buffer(&video->queue, arg, + return uvc_dequeue_buffer(&stream->queue, arg, file->f_flags & O_NONBLOCK); case VIDIOC_STREAMON: { int *type = arg; - if (*type != video->streaming->type) + if (*type != stream->type) return -EINVAL; if (!uvc_has_privileges(handle)) return -EBUSY; - if ((ret = uvc_video_enable(video, 1)) < 0) + ret = uvc_video_enable(stream, 1); + if (ret < 0) return ret; break; } @@ -933,13 +939,13 @@ static long uvc_v4l2_do_ioctl(struct file *file, unsigned int cmd, void *arg) { int *type = arg; - if (*type != video->streaming->type) + if (*type != stream->type) return -EINVAL; if (!uvc_has_privileges(handle)) return -EBUSY; - return uvc_video_enable(video, 0); + return uvc_video_enable(stream, 0); } /* Analog video standards make no sense for digital cameras. */ @@ -1013,10 +1019,10 @@ static long uvc_v4l2_do_ioctl(struct file *file, unsigned int cmd, void *arg) } case UVCIOC_CTRL_GET: - return uvc_xu_ctrl_query(video, arg, 0); + return uvc_xu_ctrl_query(chain, arg, 0); case UVCIOC_CTRL_SET: - return uvc_xu_ctrl_query(video, arg, 1); + return uvc_xu_ctrl_query(chain, arg, 1); default: if ((ret = v4l_compat_translate_ioctl(file, cmd, arg, @@ -1070,7 +1076,9 @@ static struct vm_operations_struct uvc_vm_ops = { static int uvc_v4l2_mmap(struct file *file, struct vm_area_struct *vma) { - struct uvc_video_device *video = video_drvdata(file); + struct uvc_fh *handle = (struct uvc_fh *)file->private_data; + struct uvc_streaming *stream = handle->stream; + struct uvc_video_queue *queue = &stream->queue; struct uvc_buffer *uninitialized_var(buffer); struct page *page; unsigned long addr, start, size; @@ -1082,15 +1090,15 @@ static int uvc_v4l2_mmap(struct file *file, struct vm_area_struct *vma) start = vma->vm_start; size = vma->vm_end - vma->vm_start; - mutex_lock(&video->queue.mutex); + mutex_lock(&queue->mutex); - for (i = 0; i < video->queue.count; ++i) { - buffer = &video->queue.buffer[i]; + for (i = 0; i < queue->count; ++i) { + buffer = &queue->buffer[i]; if ((buffer->buf.m.offset >> PAGE_SHIFT) == vma->vm_pgoff) break; } - if (i == video->queue.count || size != video->queue.buf_size) { + if (i == queue->count || size != queue->buf_size) { ret = -EINVAL; goto done; } @@ -1101,7 +1109,7 @@ static int uvc_v4l2_mmap(struct file *file, struct vm_area_struct *vma) */ vma->vm_flags |= VM_IO; - addr = (unsigned long)video->queue.mem + buffer->buf.m.offset; + addr = (unsigned long)queue->mem + buffer->buf.m.offset; while (size > 0) { page = vmalloc_to_page((void *)addr); if ((ret = vm_insert_page(vma, start, page)) < 0) @@ -1117,17 +1125,18 @@ static int uvc_v4l2_mmap(struct file *file, struct vm_area_struct *vma) uvc_vm_open(vma); done: - mutex_unlock(&video->queue.mutex); + mutex_unlock(&queue->mutex); return ret; } static unsigned int uvc_v4l2_poll(struct file *file, poll_table *wait) { - struct uvc_video_device *video = video_drvdata(file); + struct uvc_fh *handle = (struct uvc_fh *)file->private_data; + struct uvc_streaming *stream = handle->stream; uvc_trace(UVC_TRACE_CALLS, "uvc_v4l2_poll\n"); - return uvc_queue_poll(&video->queue, file, wait); + return uvc_queue_poll(&stream->queue, file, wait); } const struct v4l2_file_operations uvc_fops = { diff --git a/drivers/media/video/uvc/uvc_video.c b/drivers/media/video/uvc/uvc_video.c index 01b633c7348..5b757f32d99 100644 --- a/drivers/media/video/uvc/uvc_video.c +++ b/drivers/media/video/uvc/uvc_video.c @@ -61,7 +61,7 @@ int uvc_query_ctrl(struct uvc_device *dev, __u8 query, __u8 unit, return 0; } -static void uvc_fixup_video_ctrl(struct uvc_video_device *video, +static void uvc_fixup_video_ctrl(struct uvc_streaming *stream, struct uvc_streaming_control *ctrl) { struct uvc_format *format; @@ -69,10 +69,10 @@ static void uvc_fixup_video_ctrl(struct uvc_video_device *video, unsigned int i; if (ctrl->bFormatIndex <= 0 || - ctrl->bFormatIndex > video->streaming->nformats) + ctrl->bFormatIndex > stream->nformats) return; - format = &video->streaming->format[ctrl->bFormatIndex - 1]; + format = &stream->format[ctrl->bFormatIndex - 1]; for (i = 0; i < format->nframes; ++i) { if (format->frame[i].bFrameIndex == ctrl->bFrameIndex) { @@ -86,12 +86,12 @@ static void uvc_fixup_video_ctrl(struct uvc_video_device *video, if (!(format->flags & UVC_FMT_FLAG_COMPRESSED) || (ctrl->dwMaxVideoFrameSize == 0 && - video->dev->uvc_version < 0x0110)) + stream->dev->uvc_version < 0x0110)) ctrl->dwMaxVideoFrameSize = frame->dwMaxVideoFrameBufferSize; - if (video->dev->quirks & UVC_QUIRK_FIX_BANDWIDTH && - video->streaming->intf->num_altsetting > 1) { + if (stream->dev->quirks & UVC_QUIRK_FIX_BANDWIDTH && + stream->intf->num_altsetting > 1) { u32 interval; u32 bandwidth; @@ -108,7 +108,7 @@ static void uvc_fixup_video_ctrl(struct uvc_video_device *video, bandwidth = frame->wWidth * frame->wHeight / 8 * format->bpp; bandwidth *= 10000000 / interval + 1; bandwidth /= 1000; - if (video->dev->udev->speed == USB_SPEED_HIGH) + if (stream->dev->udev->speed == USB_SPEED_HIGH) bandwidth /= 8; bandwidth += 12; @@ -116,40 +116,43 @@ static void uvc_fixup_video_ctrl(struct uvc_video_device *video, } } -static int uvc_get_video_ctrl(struct uvc_video_device *video, +static int uvc_get_video_ctrl(struct uvc_streaming *stream, struct uvc_streaming_control *ctrl, int probe, __u8 query) { __u8 *data; __u16 size; int ret; - size = video->dev->uvc_version >= 0x0110 ? 34 : 26; + size = stream->dev->uvc_version >= 0x0110 ? 34 : 26; data = kmalloc(size, GFP_KERNEL); if (data == NULL) return -ENOMEM; - ret = __uvc_query_ctrl(video->dev, query, 0, video->streaming->intfnum, - probe ? VS_PROBE_CONTROL : VS_COMMIT_CONTROL, data, size, - UVC_CTRL_STREAMING_TIMEOUT); + if ((stream->dev->quirks & UVC_QUIRK_PROBE_DEF) && query == UVC_GET_DEF) + return -EIO; + + ret = __uvc_query_ctrl(stream->dev, query, 0, stream->intfnum, + probe ? UVC_VS_PROBE_CONTROL : UVC_VS_COMMIT_CONTROL, data, + size, UVC_CTRL_STREAMING_TIMEOUT); - if ((query == GET_MIN || query == GET_MAX) && ret == 2) { + if ((query == UVC_GET_MIN || query == UVC_GET_MAX) && ret == 2) { /* Some cameras, mostly based on Bison Electronics chipsets, * answer a GET_MIN or GET_MAX request with the wCompQuality * field only. */ - uvc_warn_once(video->dev, UVC_WARN_MINMAX, "UVC non " + uvc_warn_once(stream->dev, UVC_WARN_MINMAX, "UVC non " "compliance - GET_MIN/MAX(PROBE) incorrectly " "supported. Enabling workaround.\n"); memset(ctrl, 0, sizeof ctrl); ctrl->wCompQuality = le16_to_cpup((__le16 *)data); ret = 0; goto out; - } else if (query == GET_DEF && probe == 1 && ret != size) { + } else if (query == UVC_GET_DEF && probe == 1 && ret != size) { /* Many cameras don't support the GET_DEF request on their * video probe control. Warn once and return, the caller will * fall back to GET_CUR. */ - uvc_warn_once(video->dev, UVC_WARN_PROBE_DEF, "UVC non " + uvc_warn_once(stream->dev, UVC_WARN_PROBE_DEF, "UVC non " "compliance - GET_DEF(PROBE) not supported. " "Enabling workaround.\n"); ret = -EIO; @@ -181,7 +184,7 @@ static int uvc_get_video_ctrl(struct uvc_video_device *video, ctrl->bMinVersion = data[32]; ctrl->bMaxVersion = data[33]; } else { - ctrl->dwClockFrequency = video->dev->clock_frequency; + ctrl->dwClockFrequency = stream->dev->clock_frequency; ctrl->bmFramingInfo = 0; ctrl->bPreferedVersion = 0; ctrl->bMinVersion = 0; @@ -192,7 +195,7 @@ static int uvc_get_video_ctrl(struct uvc_video_device *video, * dwMaxPayloadTransferSize fields. Try to get the value from the * format and frame descriptors. */ - uvc_fixup_video_ctrl(video, ctrl); + uvc_fixup_video_ctrl(stream, ctrl); ret = 0; out: @@ -200,14 +203,14 @@ out: return ret; } -static int uvc_set_video_ctrl(struct uvc_video_device *video, +static int uvc_set_video_ctrl(struct uvc_streaming *stream, struct uvc_streaming_control *ctrl, int probe) { __u8 *data; __u16 size; int ret; - size = video->dev->uvc_version >= 0x0110 ? 34 : 26; + size = stream->dev->uvc_version >= 0x0110 ? 34 : 26; data = kzalloc(size, GFP_KERNEL); if (data == NULL) return -ENOMEM; @@ -232,10 +235,9 @@ static int uvc_set_video_ctrl(struct uvc_video_device *video, data[33] = ctrl->bMaxVersion; } - ret = __uvc_query_ctrl(video->dev, SET_CUR, 0, - video->streaming->intfnum, - probe ? VS_PROBE_CONTROL : VS_COMMIT_CONTROL, data, size, - UVC_CTRL_STREAMING_TIMEOUT); + ret = __uvc_query_ctrl(stream->dev, UVC_SET_CUR, 0, stream->intfnum, + probe ? UVC_VS_PROBE_CONTROL : UVC_VS_COMMIT_CONTROL, data, + size, UVC_CTRL_STREAMING_TIMEOUT); if (ret != size) { uvc_printk(KERN_ERR, "Failed to set UVC %s control : " "%d (exp. %u).\n", probe ? "probe" : "commit", @@ -247,7 +249,7 @@ static int uvc_set_video_ctrl(struct uvc_video_device *video, return ret; } -int uvc_probe_video(struct uvc_video_device *video, +int uvc_probe_video(struct uvc_streaming *stream, struct uvc_streaming_control *probe) { struct uvc_streaming_control probe_min, probe_max; @@ -255,7 +257,7 @@ int uvc_probe_video(struct uvc_video_device *video, unsigned int i; int ret; - mutex_lock(&video->streaming->mutex); + mutex_lock(&stream->mutex); /* Perform probing. The device should adjust the requested values * according to its capabilities. However, some devices, namely the @@ -264,15 +266,16 @@ int uvc_probe_video(struct uvc_video_device *video, * that reason, if the needed bandwidth exceeds the maximum available * bandwidth, try to lower the quality. */ - if ((ret = uvc_set_video_ctrl(video, probe, 1)) < 0) + ret = uvc_set_video_ctrl(stream, probe, 1); + if (ret < 0) goto done; /* Get the minimum and maximum values for compression settings. */ - if (!(video->dev->quirks & UVC_QUIRK_PROBE_MINMAX)) { - ret = uvc_get_video_ctrl(video, &probe_min, 1, GET_MIN); + if (!(stream->dev->quirks & UVC_QUIRK_PROBE_MINMAX)) { + ret = uvc_get_video_ctrl(stream, &probe_min, 1, UVC_GET_MIN); if (ret < 0) goto done; - ret = uvc_get_video_ctrl(video, &probe_max, 1, GET_MAX); + ret = uvc_get_video_ctrl(stream, &probe_max, 1, UVC_GET_MAX); if (ret < 0) goto done; @@ -280,18 +283,21 @@ int uvc_probe_video(struct uvc_video_device *video, } for (i = 0; i < 2; ++i) { - if ((ret = uvc_set_video_ctrl(video, probe, 1)) < 0 || - (ret = uvc_get_video_ctrl(video, probe, 1, GET_CUR)) < 0) + ret = uvc_set_video_ctrl(stream, probe, 1); + if (ret < 0) + goto done; + ret = uvc_get_video_ctrl(stream, probe, 1, UVC_GET_CUR); + if (ret < 0) goto done; - if (video->streaming->intf->num_altsetting == 1) + if (stream->intf->num_altsetting == 1) break; bandwidth = probe->dwMaxPayloadTransferSize; - if (bandwidth <= video->streaming->maxpsize) + if (bandwidth <= stream->maxpsize) break; - if (video->dev->quirks & UVC_QUIRK_PROBE_MINMAX) { + if (stream->dev->quirks & UVC_QUIRK_PROBE_MINMAX) { ret = -ENOSPC; goto done; } @@ -304,14 +310,14 @@ int uvc_probe_video(struct uvc_video_device *video, } done: - mutex_unlock(&video->streaming->mutex); + mutex_unlock(&stream->mutex); return ret; } -int uvc_commit_video(struct uvc_video_device *video, +int uvc_commit_video(struct uvc_streaming *stream, struct uvc_streaming_control *probe) { - return uvc_set_video_ctrl(video, probe, 0); + return uvc_set_video_ctrl(stream, probe, 0); } /* ------------------------------------------------------------------------ @@ -363,7 +369,7 @@ int uvc_commit_video(struct uvc_video_device *video, * to be called with a NULL buf parameter. uvc_video_decode_data and * uvc_video_decode_end will never be called with a NULL buffer. */ -static int uvc_video_decode_start(struct uvc_video_device *video, +static int uvc_video_decode_start(struct uvc_streaming *stream, struct uvc_buffer *buf, const __u8 *data, int len) { __u8 fid; @@ -389,25 +395,25 @@ static int uvc_video_decode_start(struct uvc_video_device *video, * NULL. */ if (buf == NULL) { - video->last_fid = fid; + stream->last_fid = fid; return -ENODATA; } /* Synchronize to the input stream by waiting for the FID bit to be * toggled when the the buffer state is not UVC_BUF_STATE_ACTIVE. - * video->last_fid is initialized to -1, so the first isochronous + * stream->last_fid is initialized to -1, so the first isochronous * frame will always be in sync. * - * If the device doesn't toggle the FID bit, invert video->last_fid + * If the device doesn't toggle the FID bit, invert stream->last_fid * when the EOF bit is set to force synchronisation on the next packet. */ if (buf->state != UVC_BUF_STATE_ACTIVE) { - if (fid == video->last_fid) { + if (fid == stream->last_fid) { uvc_trace(UVC_TRACE_FRAME, "Dropping payload (out of " "sync).\n"); - if ((video->dev->quirks & UVC_QUIRK_STREAM_NO_FID) && + if ((stream->dev->quirks & UVC_QUIRK_STREAM_NO_FID) && (data[1] & UVC_STREAM_EOF)) - video->last_fid ^= UVC_STREAM_FID; + stream->last_fid ^= UVC_STREAM_FID; return -ENODATA; } @@ -422,7 +428,7 @@ static int uvc_video_decode_start(struct uvc_video_device *video, * last payload can be lost anyway). We thus must check if the FID has * been toggled. * - * video->last_fid is initialized to -1, so the first isochronous + * stream->last_fid is initialized to -1, so the first isochronous * frame will never trigger an end of frame detection. * * Empty buffers (bytesused == 0) don't trigger end of frame detection @@ -430,22 +436,22 @@ static int uvc_video_decode_start(struct uvc_video_device *video, * avoids detecting end of frame conditions at FID toggling if the * previous payload had the EOF bit set. */ - if (fid != video->last_fid && buf->buf.bytesused != 0) { + if (fid != stream->last_fid && buf->buf.bytesused != 0) { uvc_trace(UVC_TRACE_FRAME, "Frame complete (FID bit " "toggled).\n"); buf->state = UVC_BUF_STATE_DONE; return -EAGAIN; } - video->last_fid = fid; + stream->last_fid = fid; return data[0]; } -static void uvc_video_decode_data(struct uvc_video_device *video, +static void uvc_video_decode_data(struct uvc_streaming *stream, struct uvc_buffer *buf, const __u8 *data, int len) { - struct uvc_video_queue *queue = &video->queue; + struct uvc_video_queue *queue = &stream->queue; unsigned int maxlen, nbytes; void *mem; @@ -466,7 +472,7 @@ static void uvc_video_decode_data(struct uvc_video_device *video, } } -static void uvc_video_decode_end(struct uvc_video_device *video, +static void uvc_video_decode_end(struct uvc_streaming *stream, struct uvc_buffer *buf, const __u8 *data, int len) { /* Mark the buffer as done if the EOF marker is set. */ @@ -475,8 +481,8 @@ static void uvc_video_decode_end(struct uvc_video_device *video, if (data[0] == len) uvc_trace(UVC_TRACE_FRAME, "EOF in empty payload.\n"); buf->state = UVC_BUF_STATE_DONE; - if (video->dev->quirks & UVC_QUIRK_STREAM_NO_FID) - video->last_fid ^= UVC_STREAM_FID; + if (stream->dev->quirks & UVC_QUIRK_STREAM_NO_FID) + stream->last_fid ^= UVC_STREAM_FID; } } @@ -491,26 +497,26 @@ static void uvc_video_decode_end(struct uvc_video_device *video, * uvc_video_encode_data is called for every URB and copies the data from the * video buffer to the transfer buffer. */ -static int uvc_video_encode_header(struct uvc_video_device *video, +static int uvc_video_encode_header(struct uvc_streaming *stream, struct uvc_buffer *buf, __u8 *data, int len) { data[0] = 2; /* Header length */ data[1] = UVC_STREAM_EOH | UVC_STREAM_EOF - | (video->last_fid & UVC_STREAM_FID); + | (stream->last_fid & UVC_STREAM_FID); return 2; } -static int uvc_video_encode_data(struct uvc_video_device *video, +static int uvc_video_encode_data(struct uvc_streaming *stream, struct uvc_buffer *buf, __u8 *data, int len) { - struct uvc_video_queue *queue = &video->queue; + struct uvc_video_queue *queue = &stream->queue; unsigned int nbytes; void *mem; /* Copy video data to the URB buffer. */ mem = queue->mem + buf->buf.m.offset + queue->buf_used; nbytes = min((unsigned int)len, buf->buf.bytesused - queue->buf_used); - nbytes = min(video->bulk.max_payload_size - video->bulk.payload_size, + nbytes = min(stream->bulk.max_payload_size - stream->bulk.payload_size, nbytes); memcpy(data, mem, nbytes); @@ -526,8 +532,8 @@ static int uvc_video_encode_data(struct uvc_video_device *video, /* * Completion handler for video URBs. */ -static void uvc_video_decode_isoc(struct urb *urb, - struct uvc_video_device *video, struct uvc_buffer *buf) +static void uvc_video_decode_isoc(struct urb *urb, struct uvc_streaming *stream, + struct uvc_buffer *buf) { u8 *mem; int ret, i; @@ -542,31 +548,32 @@ static void uvc_video_decode_isoc(struct urb *urb, /* Decode the payload header. */ mem = urb->transfer_buffer + urb->iso_frame_desc[i].offset; do { - ret = uvc_video_decode_start(video, buf, mem, + ret = uvc_video_decode_start(stream, buf, mem, urb->iso_frame_desc[i].actual_length); if (ret == -EAGAIN) - buf = uvc_queue_next_buffer(&video->queue, buf); + buf = uvc_queue_next_buffer(&stream->queue, + buf); } while (ret == -EAGAIN); if (ret < 0) continue; /* Decode the payload data. */ - uvc_video_decode_data(video, buf, mem + ret, + uvc_video_decode_data(stream, buf, mem + ret, urb->iso_frame_desc[i].actual_length - ret); /* Process the header again. */ - uvc_video_decode_end(video, buf, mem, + uvc_video_decode_end(stream, buf, mem, urb->iso_frame_desc[i].actual_length); if (buf->state == UVC_BUF_STATE_DONE || buf->state == UVC_BUF_STATE_ERROR) - buf = uvc_queue_next_buffer(&video->queue, buf); + buf = uvc_queue_next_buffer(&stream->queue, buf); } } -static void uvc_video_decode_bulk(struct urb *urb, - struct uvc_video_device *video, struct uvc_buffer *buf) +static void uvc_video_decode_bulk(struct urb *urb, struct uvc_streaming *stream, + struct uvc_buffer *buf) { u8 *mem; int len, ret; @@ -576,24 +583,25 @@ static void uvc_video_decode_bulk(struct urb *urb, mem = urb->transfer_buffer; len = urb->actual_length; - video->bulk.payload_size += len; + stream->bulk.payload_size += len; /* If the URB is the first of its payload, decode and save the * header. */ - if (video->bulk.header_size == 0 && !video->bulk.skip_payload) { + if (stream->bulk.header_size == 0 && !stream->bulk.skip_payload) { do { - ret = uvc_video_decode_start(video, buf, mem, len); + ret = uvc_video_decode_start(stream, buf, mem, len); if (ret == -EAGAIN) - buf = uvc_queue_next_buffer(&video->queue, buf); + buf = uvc_queue_next_buffer(&stream->queue, + buf); } while (ret == -EAGAIN); /* If an error occured skip the rest of the payload. */ if (ret < 0 || buf == NULL) { - video->bulk.skip_payload = 1; + stream->bulk.skip_payload = 1; } else { - memcpy(video->bulk.header, mem, ret); - video->bulk.header_size = ret; + memcpy(stream->bulk.header, mem, ret); + stream->bulk.header_size = ret; mem += ret; len -= ret; @@ -606,33 +614,34 @@ static void uvc_video_decode_bulk(struct urb *urb, */ /* Process video data. */ - if (!video->bulk.skip_payload && buf != NULL) - uvc_video_decode_data(video, buf, mem, len); + if (!stream->bulk.skip_payload && buf != NULL) + uvc_video_decode_data(stream, buf, mem, len); /* Detect the payload end by a URB smaller than the maximum size (or * a payload size equal to the maximum) and process the header again. */ if (urb->actual_length < urb->transfer_buffer_length || - video->bulk.payload_size >= video->bulk.max_payload_size) { - if (!video->bulk.skip_payload && buf != NULL) { - uvc_video_decode_end(video, buf, video->bulk.header, - video->bulk.payload_size); + stream->bulk.payload_size >= stream->bulk.max_payload_size) { + if (!stream->bulk.skip_payload && buf != NULL) { + uvc_video_decode_end(stream, buf, stream->bulk.header, + stream->bulk.payload_size); if (buf->state == UVC_BUF_STATE_DONE || buf->state == UVC_BUF_STATE_ERROR) - buf = uvc_queue_next_buffer(&video->queue, buf); + buf = uvc_queue_next_buffer(&stream->queue, + buf); } - video->bulk.header_size = 0; - video->bulk.skip_payload = 0; - video->bulk.payload_size = 0; + stream->bulk.header_size = 0; + stream->bulk.skip_payload = 0; + stream->bulk.payload_size = 0; } } -static void uvc_video_encode_bulk(struct urb *urb, - struct uvc_video_device *video, struct uvc_buffer *buf) +static void uvc_video_encode_bulk(struct urb *urb, struct uvc_streaming *stream, + struct uvc_buffer *buf) { u8 *mem = urb->transfer_buffer; - int len = video->urb_size, ret; + int len = stream->urb_size, ret; if (buf == NULL) { urb->transfer_buffer_length = 0; @@ -640,40 +649,40 @@ static void uvc_video_encode_bulk(struct urb *urb, } /* If the URB is the first of its payload, add the header. */ - if (video->bulk.header_size == 0) { - ret = uvc_video_encode_header(video, buf, mem, len); - video->bulk.header_size = ret; - video->bulk.payload_size += ret; + if (stream->bulk.header_size == 0) { + ret = uvc_video_encode_header(stream, buf, mem, len); + stream->bulk.header_size = ret; + stream->bulk.payload_size += ret; mem += ret; len -= ret; } /* Process video data. */ - ret = uvc_video_encode_data(video, buf, mem, len); + ret = uvc_video_encode_data(stream, buf, mem, len); - video->bulk.payload_size += ret; + stream->bulk.payload_size += ret; len -= ret; - if (buf->buf.bytesused == video->queue.buf_used || - video->bulk.payload_size == video->bulk.max_payload_size) { - if (buf->buf.bytesused == video->queue.buf_used) { - video->queue.buf_used = 0; + if (buf->buf.bytesused == stream->queue.buf_used || + stream->bulk.payload_size == stream->bulk.max_payload_size) { + if (buf->buf.bytesused == stream->queue.buf_used) { + stream->queue.buf_used = 0; buf->state = UVC_BUF_STATE_DONE; - uvc_queue_next_buffer(&video->queue, buf); - video->last_fid ^= UVC_STREAM_FID; + uvc_queue_next_buffer(&stream->queue, buf); + stream->last_fid ^= UVC_STREAM_FID; } - video->bulk.header_size = 0; - video->bulk.payload_size = 0; + stream->bulk.header_size = 0; + stream->bulk.payload_size = 0; } - urb->transfer_buffer_length = video->urb_size - len; + urb->transfer_buffer_length = stream->urb_size - len; } static void uvc_video_complete(struct urb *urb) { - struct uvc_video_device *video = urb->context; - struct uvc_video_queue *queue = &video->queue; + struct uvc_streaming *stream = urb->context; + struct uvc_video_queue *queue = &stream->queue; struct uvc_buffer *buf = NULL; unsigned long flags; int ret; @@ -687,7 +696,7 @@ static void uvc_video_complete(struct urb *urb) "completion handler.\n", urb->status); case -ENOENT: /* usb_kill_urb() called. */ - if (video->frozen) + if (stream->frozen) return; case -ECONNRESET: /* usb_unlink_urb() called. */ @@ -702,7 +711,7 @@ static void uvc_video_complete(struct urb *urb) queue); spin_unlock_irqrestore(&queue->irqlock, flags); - video->decode(urb, video, buf); + stream->decode(urb, stream, buf); if ((ret = usb_submit_urb(urb, GFP_ATOMIC)) < 0) { uvc_printk(KERN_ERR, "Failed to resubmit video URB (%d).\n", @@ -713,19 +722,19 @@ static void uvc_video_complete(struct urb *urb) /* * Free transfer buffers. */ -static void uvc_free_urb_buffers(struct uvc_video_device *video) +static void uvc_free_urb_buffers(struct uvc_streaming *stream) { unsigned int i; for (i = 0; i < UVC_URBS; ++i) { - if (video->urb_buffer[i]) { - usb_buffer_free(video->dev->udev, video->urb_size, - video->urb_buffer[i], video->urb_dma[i]); - video->urb_buffer[i] = NULL; + if (stream->urb_buffer[i]) { + usb_buffer_free(stream->dev->udev, stream->urb_size, + stream->urb_buffer[i], stream->urb_dma[i]); + stream->urb_buffer[i] = NULL; } } - video->urb_size = 0; + stream->urb_size = 0; } /* @@ -739,15 +748,15 @@ static void uvc_free_urb_buffers(struct uvc_video_device *video) * * Return the number of allocated packets on success or 0 when out of memory. */ -static int uvc_alloc_urb_buffers(struct uvc_video_device *video, +static int uvc_alloc_urb_buffers(struct uvc_streaming *stream, unsigned int size, unsigned int psize, gfp_t gfp_flags) { unsigned int npackets; unsigned int i; /* Buffers are already allocated, bail out. */ - if (video->urb_size) - return video->urb_size / psize; + if (stream->urb_size) + return stream->urb_size / psize; /* Compute the number of packets. Bulk endpoints might transfer UVC * payloads accross multiple URBs. @@ -759,17 +768,17 @@ static int uvc_alloc_urb_buffers(struct uvc_video_device *video, /* Retry allocations until one succeed. */ for (; npackets > 1; npackets /= 2) { for (i = 0; i < UVC_URBS; ++i) { - video->urb_buffer[i] = usb_buffer_alloc( - video->dev->udev, psize * npackets, - gfp_flags | __GFP_NOWARN, &video->urb_dma[i]); - if (!video->urb_buffer[i]) { - uvc_free_urb_buffers(video); + stream->urb_buffer[i] = usb_buffer_alloc( + stream->dev->udev, psize * npackets, + gfp_flags | __GFP_NOWARN, &stream->urb_dma[i]); + if (!stream->urb_buffer[i]) { + uvc_free_urb_buffers(stream); break; } } if (i == UVC_URBS) { - video->urb_size = psize * npackets; + stream->urb_size = psize * npackets; return npackets; } } @@ -780,29 +789,30 @@ static int uvc_alloc_urb_buffers(struct uvc_video_device *video, /* * Uninitialize isochronous/bulk URBs and free transfer buffers. */ -static void uvc_uninit_video(struct uvc_video_device *video, int free_buffers) +static void uvc_uninit_video(struct uvc_streaming *stream, int free_buffers) { struct urb *urb; unsigned int i; for (i = 0; i < UVC_URBS; ++i) { - if ((urb = video->urb[i]) == NULL) + urb = stream->urb[i]; + if (urb == NULL) continue; usb_kill_urb(urb); usb_free_urb(urb); - video->urb[i] = NULL; + stream->urb[i] = NULL; } if (free_buffers) - uvc_free_urb_buffers(video); + uvc_free_urb_buffers(stream); } /* * Initialize isochronous URBs and allocate transfer buffers. The packet size * is given by the endpoint. */ -static int uvc_init_video_isoc(struct uvc_video_device *video, +static int uvc_init_video_isoc(struct uvc_streaming *stream, struct usb_host_endpoint *ep, gfp_t gfp_flags) { struct urb *urb; @@ -812,9 +822,9 @@ static int uvc_init_video_isoc(struct uvc_video_device *video, psize = le16_to_cpu(ep->desc.wMaxPacketSize); psize = (psize & 0x07ff) * (1 + ((psize >> 11) & 3)); - size = video->streaming->ctrl.dwMaxVideoFrameSize; + size = stream->ctrl.dwMaxVideoFrameSize; - npackets = uvc_alloc_urb_buffers(video, size, psize, gfp_flags); + npackets = uvc_alloc_urb_buffers(stream, size, psize, gfp_flags); if (npackets == 0) return -ENOMEM; @@ -823,18 +833,18 @@ static int uvc_init_video_isoc(struct uvc_video_device *video, for (i = 0; i < UVC_URBS; ++i) { urb = usb_alloc_urb(npackets, gfp_flags); if (urb == NULL) { - uvc_uninit_video(video, 1); + uvc_uninit_video(stream, 1); return -ENOMEM; } - urb->dev = video->dev->udev; - urb->context = video; - urb->pipe = usb_rcvisocpipe(video->dev->udev, + urb->dev = stream->dev->udev; + urb->context = stream; + urb->pipe = usb_rcvisocpipe(stream->dev->udev, ep->desc.bEndpointAddress); urb->transfer_flags = URB_ISO_ASAP | URB_NO_TRANSFER_DMA_MAP; urb->interval = ep->desc.bInterval; - urb->transfer_buffer = video->urb_buffer[i]; - urb->transfer_dma = video->urb_dma[i]; + urb->transfer_buffer = stream->urb_buffer[i]; + urb->transfer_dma = stream->urb_dma[i]; urb->complete = uvc_video_complete; urb->number_of_packets = npackets; urb->transfer_buffer_length = size; @@ -844,7 +854,7 @@ static int uvc_init_video_isoc(struct uvc_video_device *video, urb->iso_frame_desc[j].length = psize; } - video->urb[i] = urb; + stream->urb[i] = urb; } return 0; @@ -854,7 +864,7 @@ static int uvc_init_video_isoc(struct uvc_video_device *video, * Initialize bulk URBs and allocate transfer buffers. The packet size is * given by the endpoint. */ -static int uvc_init_video_bulk(struct uvc_video_device *video, +static int uvc_init_video_bulk(struct uvc_streaming *stream, struct usb_host_endpoint *ep, gfp_t gfp_flags) { struct urb *urb; @@ -863,39 +873,39 @@ static int uvc_init_video_bulk(struct uvc_video_device *video, u32 size; psize = le16_to_cpu(ep->desc.wMaxPacketSize) & 0x07ff; - size = video->streaming->ctrl.dwMaxPayloadTransferSize; - video->bulk.max_payload_size = size; + size = stream->ctrl.dwMaxPayloadTransferSize; + stream->bulk.max_payload_size = size; - npackets = uvc_alloc_urb_buffers(video, size, psize, gfp_flags); + npackets = uvc_alloc_urb_buffers(stream, size, psize, gfp_flags); if (npackets == 0) return -ENOMEM; size = npackets * psize; if (usb_endpoint_dir_in(&ep->desc)) - pipe = usb_rcvbulkpipe(video->dev->udev, + pipe = usb_rcvbulkpipe(stream->dev->udev, ep->desc.bEndpointAddress); else - pipe = usb_sndbulkpipe(video->dev->udev, + pipe = usb_sndbulkpipe(stream->dev->udev, ep->desc.bEndpointAddress); - if (video->streaming->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) + if (stream->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) size = 0; for (i = 0; i < UVC_URBS; ++i) { urb = usb_alloc_urb(0, gfp_flags); if (urb == NULL) { - uvc_uninit_video(video, 1); + uvc_uninit_video(stream, 1); return -ENOMEM; } - usb_fill_bulk_urb(urb, video->dev->udev, pipe, - video->urb_buffer[i], size, uvc_video_complete, - video); + usb_fill_bulk_urb(urb, stream->dev->udev, pipe, + stream->urb_buffer[i], size, uvc_video_complete, + stream); urb->transfer_flags = URB_NO_TRANSFER_DMA_MAP; - urb->transfer_dma = video->urb_dma[i]; + urb->transfer_dma = stream->urb_dma[i]; - video->urb[i] = urb; + stream->urb[i] = urb; } return 0; @@ -904,35 +914,35 @@ static int uvc_init_video_bulk(struct uvc_video_device *video, /* * Initialize isochronous/bulk URBs and allocate transfer buffers. */ -static int uvc_init_video(struct uvc_video_device *video, gfp_t gfp_flags) +static int uvc_init_video(struct uvc_streaming *stream, gfp_t gfp_flags) { - struct usb_interface *intf = video->streaming->intf; + struct usb_interface *intf = stream->intf; struct usb_host_interface *alts; struct usb_host_endpoint *ep = NULL; - int intfnum = video->streaming->intfnum; + int intfnum = stream->intfnum; unsigned int bandwidth, psize, i; int ret; - video->last_fid = -1; - video->bulk.header_size = 0; - video->bulk.skip_payload = 0; - video->bulk.payload_size = 0; + stream->last_fid = -1; + stream->bulk.header_size = 0; + stream->bulk.skip_payload = 0; + stream->bulk.payload_size = 0; if (intf->num_altsetting > 1) { /* Isochronous endpoint, select the alternate setting. */ - bandwidth = video->streaming->ctrl.dwMaxPayloadTransferSize; + bandwidth = stream->ctrl.dwMaxPayloadTransferSize; if (bandwidth == 0) { uvc_printk(KERN_WARNING, "device %s requested null " "bandwidth, defaulting to lowest.\n", - video->vdev->name); + stream->dev->name); bandwidth = 1; } for (i = 0; i < intf->num_altsetting; ++i) { alts = &intf->altsetting[i]; ep = uvc_find_endpoint(alts, - video->streaming->header.bEndpointAddress); + stream->header.bEndpointAddress); if (ep == NULL) continue; @@ -946,18 +956,19 @@ static int uvc_init_video(struct uvc_video_device *video, gfp_t gfp_flags) if (i >= intf->num_altsetting) return -EIO; - if ((ret = usb_set_interface(video->dev->udev, intfnum, i)) < 0) + ret = usb_set_interface(stream->dev->udev, intfnum, i); + if (ret < 0) return ret; - ret = uvc_init_video_isoc(video, ep, gfp_flags); + ret = uvc_init_video_isoc(stream, ep, gfp_flags); } else { /* Bulk endpoint, proceed to URB initialization. */ ep = uvc_find_endpoint(&intf->altsetting[0], - video->streaming->header.bEndpointAddress); + stream->header.bEndpointAddress); if (ep == NULL) return -EIO; - ret = uvc_init_video_bulk(video, ep, gfp_flags); + ret = uvc_init_video_bulk(stream, ep, gfp_flags); } if (ret < 0) @@ -965,10 +976,11 @@ static int uvc_init_video(struct uvc_video_device *video, gfp_t gfp_flags) /* Submit the URBs. */ for (i = 0; i < UVC_URBS; ++i) { - if ((ret = usb_submit_urb(video->urb[i], gfp_flags)) < 0) { + ret = usb_submit_urb(stream->urb[i], gfp_flags); + if (ret < 0) { uvc_printk(KERN_ERR, "Failed to submit URB %u " "(%d).\n", i, ret); - uvc_uninit_video(video, 1); + uvc_uninit_video(stream, 1); return ret; } } @@ -987,14 +999,14 @@ static int uvc_init_video(struct uvc_video_device *video, gfp_t gfp_flags) * video buffers in any way. We mark the device as frozen to make sure the URB * completion handler won't try to cancel the queue when we kill the URBs. */ -int uvc_video_suspend(struct uvc_video_device *video) +int uvc_video_suspend(struct uvc_streaming *stream) { - if (!uvc_queue_streaming(&video->queue)) + if (!uvc_queue_streaming(&stream->queue)) return 0; - video->frozen = 1; - uvc_uninit_video(video, 0); - usb_set_interface(video->dev->udev, video->streaming->intfnum, 0); + stream->frozen = 1; + uvc_uninit_video(stream, 0); + usb_set_interface(stream->dev->udev, stream->intfnum, 0); return 0; } @@ -1006,22 +1018,24 @@ int uvc_video_suspend(struct uvc_video_device *video) * buffers, making sure userspace applications are notified of the problem * instead of waiting forever. */ -int uvc_video_resume(struct uvc_video_device *video) +int uvc_video_resume(struct uvc_streaming *stream) { int ret; - video->frozen = 0; + stream->frozen = 0; - if ((ret = uvc_commit_video(video, &video->streaming->ctrl)) < 0) { - uvc_queue_enable(&video->queue, 0); + ret = uvc_commit_video(stream, &stream->ctrl); + if (ret < 0) { + uvc_queue_enable(&stream->queue, 0); return ret; } - if (!uvc_queue_streaming(&video->queue)) + if (!uvc_queue_streaming(&stream->queue)) return 0; - if ((ret = uvc_init_video(video, GFP_NOIO)) < 0) - uvc_queue_enable(&video->queue, 0); + ret = uvc_init_video(stream, GFP_NOIO); + if (ret < 0) + uvc_queue_enable(&stream->queue, 0); return ret; } @@ -1040,47 +1054,53 @@ int uvc_video_resume(struct uvc_video_device *video) * * This function is called before registering the device with V4L. */ -int uvc_video_init(struct uvc_video_device *video) +int uvc_video_init(struct uvc_streaming *stream) { - struct uvc_streaming_control *probe = &video->streaming->ctrl; + struct uvc_streaming_control *probe = &stream->ctrl; struct uvc_format *format = NULL; struct uvc_frame *frame = NULL; unsigned int i; int ret; - if (video->streaming->nformats == 0) { + if (stream->nformats == 0) { uvc_printk(KERN_INFO, "No supported video formats found.\n"); return -EINVAL; } + atomic_set(&stream->active, 0); + + /* Initialize the video buffers queue. */ + uvc_queue_init(&stream->queue, stream->type); + /* Alternate setting 0 should be the default, yet the XBox Live Vision * Cam (and possibly other devices) crash or otherwise misbehave if * they don't receive a SET_INTERFACE request before any other video * control request. */ - usb_set_interface(video->dev->udev, video->streaming->intfnum, 0); + usb_set_interface(stream->dev->udev, stream->intfnum, 0); /* Set the streaming probe control with default streaming parameters * retrieved from the device. Webcams that don't suport GET_DEF * requests on the probe control will just keep their current streaming * parameters. */ - if (uvc_get_video_ctrl(video, probe, 1, GET_DEF) == 0) - uvc_set_video_ctrl(video, probe, 1); + if (uvc_get_video_ctrl(stream, probe, 1, UVC_GET_DEF) == 0) + uvc_set_video_ctrl(stream, probe, 1); /* Initialize the streaming parameters with the probe control current * value. This makes sure SET_CUR requests on the streaming commit * control will always use values retrieved from a successful GET_CUR * request on the probe control, as required by the UVC specification. */ - if ((ret = uvc_get_video_ctrl(video, probe, 1, GET_CUR)) < 0) + ret = uvc_get_video_ctrl(stream, probe, 1, UVC_GET_CUR); + if (ret < 0) return ret; /* Check if the default format descriptor exists. Use the first * available format otherwise. */ - for (i = video->streaming->nformats; i > 0; --i) { - format = &video->streaming->format[i-1]; + for (i = stream->nformats; i > 0; --i) { + format = &stream->format[i-1]; if (format->index == probe->bFormatIndex) break; } @@ -1105,21 +1125,20 @@ int uvc_video_init(struct uvc_video_device *video) probe->bFormatIndex = format->index; probe->bFrameIndex = frame->bFrameIndex; - video->streaming->cur_format = format; - video->streaming->cur_frame = frame; - atomic_set(&video->active, 0); + stream->cur_format = format; + stream->cur_frame = frame; /* Select the video decoding function */ - if (video->streaming->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) { - if (video->dev->quirks & UVC_QUIRK_BUILTIN_ISIGHT) - video->decode = uvc_video_decode_isight; - else if (video->streaming->intf->num_altsetting > 1) - video->decode = uvc_video_decode_isoc; + if (stream->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) { + if (stream->dev->quirks & UVC_QUIRK_BUILTIN_ISIGHT) + stream->decode = uvc_video_decode_isight; + else if (stream->intf->num_altsetting > 1) + stream->decode = uvc_video_decode_isoc; else - video->decode = uvc_video_decode_bulk; + stream->decode = uvc_video_decode_bulk; } else { - if (video->streaming->intf->num_altsetting == 1) - video->decode = uvc_video_encode_bulk; + if (stream->intf->num_altsetting == 1) + stream->decode = uvc_video_encode_bulk; else { uvc_printk(KERN_INFO, "Isochronous endpoints are not " "supported for video output devices.\n"); @@ -1133,31 +1152,32 @@ int uvc_video_init(struct uvc_video_device *video) /* * Enable or disable the video stream. */ -int uvc_video_enable(struct uvc_video_device *video, int enable) +int uvc_video_enable(struct uvc_streaming *stream, int enable) { int ret; if (!enable) { - uvc_uninit_video(video, 1); - usb_set_interface(video->dev->udev, - video->streaming->intfnum, 0); - uvc_queue_enable(&video->queue, 0); + uvc_uninit_video(stream, 1); + usb_set_interface(stream->dev->udev, stream->intfnum, 0); + uvc_queue_enable(&stream->queue, 0); return 0; } - if ((video->streaming->cur_format->flags & UVC_FMT_FLAG_COMPRESSED) || + if ((stream->cur_format->flags & UVC_FMT_FLAG_COMPRESSED) || uvc_no_drop_param) - video->queue.flags &= ~UVC_QUEUE_DROP_INCOMPLETE; + stream->queue.flags &= ~UVC_QUEUE_DROP_INCOMPLETE; else - video->queue.flags |= UVC_QUEUE_DROP_INCOMPLETE; + stream->queue.flags |= UVC_QUEUE_DROP_INCOMPLETE; - if ((ret = uvc_queue_enable(&video->queue, 1)) < 0) + ret = uvc_queue_enable(&stream->queue, 1); + if (ret < 0) return ret; /* Commit the streaming parameters. */ - if ((ret = uvc_commit_video(video, &video->streaming->ctrl)) < 0) + ret = uvc_commit_video(stream, &stream->ctrl); + if (ret < 0) return ret; - return uvc_init_video(video, GFP_KERNEL); + return uvc_init_video(stream, GFP_KERNEL); } diff --git a/drivers/media/video/uvc/uvcvideo.h b/drivers/media/video/uvc/uvcvideo.h index 3c78d3c1e4c..e7958aa454c 100644 --- a/drivers/media/video/uvc/uvcvideo.h +++ b/drivers/media/video/uvc/uvcvideo.h @@ -67,155 +67,12 @@ struct uvc_xu_control { #ifdef __KERNEL__ #include <linux/poll.h> +#include <linux/usb/video.h> /* -------------------------------------------------------------------------- * UVC constants */ -#define SC_UNDEFINED 0x00 -#define SC_VIDEOCONTROL 0x01 -#define SC_VIDEOSTREAMING 0x02 -#define SC_VIDEO_INTERFACE_COLLECTION 0x03 - -#define PC_PROTOCOL_UNDEFINED 0x00 - -#define CS_UNDEFINED 0x20 -#define CS_DEVICE 0x21 -#define CS_CONFIGURATION 0x22 -#define CS_STRING 0x23 -#define CS_INTERFACE 0x24 -#define CS_ENDPOINT 0x25 - -/* VideoControl class specific interface descriptor */ -#define VC_DESCRIPTOR_UNDEFINED 0x00 -#define VC_HEADER 0x01 -#define VC_INPUT_TERMINAL 0x02 -#define VC_OUTPUT_TERMINAL 0x03 -#define VC_SELECTOR_UNIT 0x04 -#define VC_PROCESSING_UNIT 0x05 -#define VC_EXTENSION_UNIT 0x06 - -/* VideoStreaming class specific interface descriptor */ -#define VS_UNDEFINED 0x00 -#define VS_INPUT_HEADER 0x01 -#define VS_OUTPUT_HEADER 0x02 -#define VS_STILL_IMAGE_FRAME 0x03 -#define VS_FORMAT_UNCOMPRESSED 0x04 -#define VS_FRAME_UNCOMPRESSED 0x05 -#define VS_FORMAT_MJPEG 0x06 -#define VS_FRAME_MJPEG 0x07 -#define VS_FORMAT_MPEG2TS 0x0a -#define VS_FORMAT_DV 0x0c -#define VS_COLORFORMAT 0x0d -#define VS_FORMAT_FRAME_BASED 0x10 -#define VS_FRAME_FRAME_BASED 0x11 -#define VS_FORMAT_STREAM_BASED 0x12 - -/* Endpoint type */ -#define EP_UNDEFINED 0x00 -#define EP_GENERAL 0x01 -#define EP_ENDPOINT 0x02 -#define EP_INTERRUPT 0x03 - -/* Request codes */ -#define RC_UNDEFINED 0x00 -#define SET_CUR 0x01 -#define GET_CUR 0x81 -#define GET_MIN 0x82 -#define GET_MAX 0x83 -#define GET_RES 0x84 -#define GET_LEN 0x85 -#define GET_INFO 0x86 -#define GET_DEF 0x87 - -/* VideoControl interface controls */ -#define VC_CONTROL_UNDEFINED 0x00 -#define VC_VIDEO_POWER_MODE_CONTROL 0x01 -#define VC_REQUEST_ERROR_CODE_CONTROL 0x02 - -/* Terminal controls */ -#define TE_CONTROL_UNDEFINED 0x00 - -/* Selector Unit controls */ -#define SU_CONTROL_UNDEFINED 0x00 -#define SU_INPUT_SELECT_CONTROL 0x01 - -/* Camera Terminal controls */ -#define CT_CONTROL_UNDEFINED 0x00 -#define CT_SCANNING_MODE_CONTROL 0x01 -#define CT_AE_MODE_CONTROL 0x02 -#define CT_AE_PRIORITY_CONTROL 0x03 -#define CT_EXPOSURE_TIME_ABSOLUTE_CONTROL 0x04 -#define CT_EXPOSURE_TIME_RELATIVE_CONTROL 0x05 -#define CT_FOCUS_ABSOLUTE_CONTROL 0x06 -#define CT_FOCUS_RELATIVE_CONTROL 0x07 -#define CT_FOCUS_AUTO_CONTROL 0x08 -#define CT_IRIS_ABSOLUTE_CONTROL 0x09 -#define CT_IRIS_RELATIVE_CONTROL 0x0a -#define CT_ZOOM_ABSOLUTE_CONTROL 0x0b -#define CT_ZOOM_RELATIVE_CONTROL 0x0c -#define CT_PANTILT_ABSOLUTE_CONTROL 0x0d -#define CT_PANTILT_RELATIVE_CONTROL 0x0e -#define CT_ROLL_ABSOLUTE_CONTROL 0x0f -#define CT_ROLL_RELATIVE_CONTROL 0x10 -#define CT_PRIVACY_CONTROL 0x11 - -/* Processing Unit controls */ -#define PU_CONTROL_UNDEFINED 0x00 -#define PU_BACKLIGHT_COMPENSATION_CONTROL 0x01 -#define PU_BRIGHTNESS_CONTROL 0x02 -#define PU_CONTRAST_CONTROL 0x03 -#define PU_GAIN_CONTROL 0x04 -#define PU_POWER_LINE_FREQUENCY_CONTROL 0x05 -#define PU_HUE_CONTROL 0x06 -#define PU_SATURATION_CONTROL 0x07 -#define PU_SHARPNESS_CONTROL 0x08 -#define PU_GAMMA_CONTROL 0x09 -#define PU_WHITE_BALANCE_TEMPERATURE_CONTROL 0x0a -#define PU_WHITE_BALANCE_TEMPERATURE_AUTO_CONTROL 0x0b -#define PU_WHITE_BALANCE_COMPONENT_CONTROL 0x0c -#define PU_WHITE_BALANCE_COMPONENT_AUTO_CONTROL 0x0d -#define PU_DIGITAL_MULTIPLIER_CONTROL 0x0e -#define PU_DIGITAL_MULTIPLIER_LIMIT_CONTROL 0x0f -#define PU_HUE_AUTO_CONTROL 0x10 -#define PU_ANALOG_VIDEO_STANDARD_CONTROL 0x11 -#define PU_ANALOG_LOCK_STATUS_CONTROL 0x12 - -#define LXU_MOTOR_PANTILT_RELATIVE_CONTROL 0x01 -#define LXU_MOTOR_PANTILT_RESET_CONTROL 0x02 -#define LXU_MOTOR_FOCUS_MOTOR_CONTROL 0x03 - -/* VideoStreaming interface controls */ -#define VS_CONTROL_UNDEFINED 0x00 -#define VS_PROBE_CONTROL 0x01 -#define VS_COMMIT_CONTROL 0x02 -#define VS_STILL_PROBE_CONTROL 0x03 -#define VS_STILL_COMMIT_CONTROL 0x04 -#define VS_STILL_IMAGE_TRIGGER_CONTROL 0x05 -#define VS_STREAM_ERROR_CODE_CONTROL 0x06 -#define VS_GENERATE_KEY_FRAME_CONTROL 0x07 -#define VS_UPDATE_FRAME_SEGMENT_CONTROL 0x08 -#define VS_SYNC_DELAY_CONTROL 0x09 - -#define TT_VENDOR_SPECIFIC 0x0100 -#define TT_STREAMING 0x0101 - -/* Input Terminal types */ -#define ITT_VENDOR_SPECIFIC 0x0200 -#define ITT_CAMERA 0x0201 -#define ITT_MEDIA_TRANSPORT_INPUT 0x0202 - -/* Output Terminal types */ -#define OTT_VENDOR_SPECIFIC 0x0300 -#define OTT_DISPLAY 0x0301 -#define OTT_MEDIA_TRANSPORT_OUTPUT 0x0302 - -/* External Terminal types */ -#define EXTERNAL_VENDOR_SPECIFIC 0x0400 -#define COMPOSITE_CONNECTOR 0x0401 -#define SVIDEO_CONNECTOR 0x0402 -#define COMPONENT_CONNECTOR 0x0403 - #define UVC_TERM_INPUT 0x0000 #define UVC_TERM_OUTPUT 0x8000 @@ -223,12 +80,12 @@ struct uvc_xu_control { #define UVC_ENTITY_IS_UNIT(entity) (((entity)->type & 0xff00) == 0) #define UVC_ENTITY_IS_TERM(entity) (((entity)->type & 0xff00) != 0) #define UVC_ENTITY_IS_ITERM(entity) \ - (((entity)->type & 0x8000) == UVC_TERM_INPUT) + (UVC_ENTITY_IS_TERM(entity) && \ + ((entity)->type & 0x8000) == UVC_TERM_INPUT) #define UVC_ENTITY_IS_OTERM(entity) \ - (((entity)->type & 0x8000) == UVC_TERM_OUTPUT) + (UVC_ENTITY_IS_TERM(entity) && \ + ((entity)->type & 0x8000) == UVC_TERM_OUTPUT) -#define UVC_STATUS_TYPE_CONTROL 1 -#define UVC_STATUS_TYPE_STREAMING 2 /* ------------------------------------------------------------------------ * GUIDs @@ -249,19 +106,6 @@ struct uvc_xu_control { {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x02} -#define UVC_GUID_LOGITECH_DEV_INFO \ - {0x82, 0x06, 0x61, 0x63, 0x70, 0x50, 0xab, 0x49, \ - 0xb8, 0xcc, 0xb3, 0x85, 0x5e, 0x8d, 0x22, 0x1e} -#define UVC_GUID_LOGITECH_USER_HW \ - {0x82, 0x06, 0x61, 0x63, 0x70, 0x50, 0xab, 0x49, \ - 0xb8, 0xcc, 0xb3, 0x85, 0x5e, 0x8d, 0x22, 0x1f} -#define UVC_GUID_LOGITECH_VIDEO \ - {0x82, 0x06, 0x61, 0x63, 0x70, 0x50, 0xab, 0x49, \ - 0xb8, 0xcc, 0xb3, 0x85, 0x5e, 0x8d, 0x22, 0x50} -#define UVC_GUID_LOGITECH_MOTOR \ - {0x82, 0x06, 0x61, 0x63, 0x70, 0x50, 0xab, 0x49, \ - 0xb8, 0xcc, 0xb3, 0x85, 0x5e, 0x8d, 0x22, 0x56} - #define UVC_GUID_FORMAT_MJPEG \ { 'M', 'J', 'P', 'G', 0x00, 0x00, 0x10, 0x00, \ 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71} @@ -314,6 +158,7 @@ struct uvc_xu_control { #define UVC_QUIRK_STREAM_NO_FID 0x00000010 #define UVC_QUIRK_IGNORE_SELECTOR_UNIT 0x00000020 #define UVC_QUIRK_FIX_BANDWIDTH 0x00000080 +#define UVC_QUIRK_PROBE_DEF 0x00000100 /* Format flags */ #define UVC_FMT_FLAG_COMPRESSED 0x00000001 @@ -518,26 +363,6 @@ struct uvc_streaming_header { __u8 bTriggerUsage; }; -struct uvc_streaming { - struct list_head list; - - struct usb_interface *intf; - int intfnum; - __u16 maxpsize; - - struct uvc_streaming_header header; - enum v4l2_buf_type type; - - unsigned int nformats; - struct uvc_format *format; - - struct uvc_streaming_control ctrl; - struct uvc_format *cur_format; - struct uvc_frame *cur_frame; - - struct mutex mutex; -}; - enum uvc_buffer_state { UVC_BUF_STATE_IDLE = 0, UVC_BUF_STATE_QUEUED = 1, @@ -579,26 +404,45 @@ struct uvc_video_queue { struct list_head irqqueue; }; -struct uvc_video_device { +struct uvc_video_chain { struct uvc_device *dev; - struct video_device *vdev; - atomic_t active; - unsigned int frozen : 1; + struct list_head list; struct list_head iterms; /* Input terminals */ - struct uvc_entity *oterm; /* Output terminal */ - struct uvc_entity *sterm; /* USB streaming terminal */ - struct uvc_entity *processing; - struct uvc_entity *selector; - struct list_head extensions; + struct list_head oterms; /* Output terminals */ + struct uvc_entity *processing; /* Processing unit */ + struct uvc_entity *selector; /* Selector unit */ + struct list_head extensions; /* Extension units */ + struct mutex ctrl_mutex; +}; - struct uvc_video_queue queue; +struct uvc_streaming { + struct list_head list; + struct uvc_device *dev; + struct video_device *vdev; + struct uvc_video_chain *chain; + atomic_t active; - /* Video streaming object, must always be non-NULL. */ - struct uvc_streaming *streaming; + struct usb_interface *intf; + int intfnum; + __u16 maxpsize; - void (*decode) (struct urb *urb, struct uvc_video_device *video, + struct uvc_streaming_header header; + enum v4l2_buf_type type; + + unsigned int nformats; + struct uvc_format *format; + + struct uvc_streaming_control ctrl; + struct uvc_format *cur_format; + struct uvc_frame *cur_frame; + + struct mutex mutex; + + unsigned int frozen : 1; + struct uvc_video_queue queue; + void (*decode) (struct urb *urb, struct uvc_streaming *video, struct uvc_buffer *buf); /* Context data used by the bulk completion handler. */ @@ -640,8 +484,10 @@ struct uvc_device { __u32 clock_frequency; struct list_head entities; + struct list_head chains; - struct uvc_video_device video; + /* Video Streaming interfaces */ + struct list_head streams; /* Status Interrupt Endpoint */ struct usb_host_endpoint *int_ep; @@ -649,9 +495,6 @@ struct uvc_device { __u8 *status; struct input_dev *input; char input_phys[64]; - - /* Video Streaming interfaces */ - struct list_head streaming; }; enum uvc_handle_state { @@ -660,7 +503,8 @@ enum uvc_handle_state { }; struct uvc_fh { - struct uvc_video_device *device; + struct uvc_video_chain *chain; + struct uvc_streaming *stream; enum uvc_handle_state state; }; @@ -757,13 +601,13 @@ static inline int uvc_queue_streaming(struct uvc_video_queue *queue) extern const struct v4l2_file_operations uvc_fops; /* Video */ -extern int uvc_video_init(struct uvc_video_device *video); -extern int uvc_video_suspend(struct uvc_video_device *video); -extern int uvc_video_resume(struct uvc_video_device *video); -extern int uvc_video_enable(struct uvc_video_device *video, int enable); -extern int uvc_probe_video(struct uvc_video_device *video, +extern int uvc_video_init(struct uvc_streaming *stream); +extern int uvc_video_suspend(struct uvc_streaming *stream); +extern int uvc_video_resume(struct uvc_streaming *stream); +extern int uvc_video_enable(struct uvc_streaming *stream, int enable); +extern int uvc_probe_video(struct uvc_streaming *stream, struct uvc_streaming_control *probe); -extern int uvc_commit_video(struct uvc_video_device *video, +extern int uvc_commit_video(struct uvc_streaming *stream, struct uvc_streaming_control *ctrl); extern int uvc_query_ctrl(struct uvc_device *dev, __u8 query, __u8 unit, __u8 intfnum, __u8 cs, void *data, __u16 size); @@ -777,9 +621,9 @@ extern int uvc_status_suspend(struct uvc_device *dev); extern int uvc_status_resume(struct uvc_device *dev); /* Controls */ -extern struct uvc_control *uvc_find_control(struct uvc_video_device *video, +extern struct uvc_control *uvc_find_control(struct uvc_video_chain *chain, __u32 v4l2_id, struct uvc_control_mapping **mapping); -extern int uvc_query_v4l2_ctrl(struct uvc_video_device *video, +extern int uvc_query_v4l2_ctrl(struct uvc_video_chain *chain, struct v4l2_queryctrl *v4l2_ctrl); extern int uvc_ctrl_add_info(struct uvc_control_info *info); @@ -789,23 +633,23 @@ extern void uvc_ctrl_cleanup_device(struct uvc_device *dev); extern int uvc_ctrl_resume_device(struct uvc_device *dev); extern void uvc_ctrl_init(void); -extern int uvc_ctrl_begin(struct uvc_video_device *video); -extern int __uvc_ctrl_commit(struct uvc_video_device *video, int rollback); -static inline int uvc_ctrl_commit(struct uvc_video_device *video) +extern int uvc_ctrl_begin(struct uvc_video_chain *chain); +extern int __uvc_ctrl_commit(struct uvc_video_chain *chain, int rollback); +static inline int uvc_ctrl_commit(struct uvc_video_chain *chain) { - return __uvc_ctrl_commit(video, 0); + return __uvc_ctrl_commit(chain, 0); } -static inline int uvc_ctrl_rollback(struct uvc_video_device *video) +static inline int uvc_ctrl_rollback(struct uvc_video_chain *chain) { - return __uvc_ctrl_commit(video, 1); + return __uvc_ctrl_commit(chain, 1); } -extern int uvc_ctrl_get(struct uvc_video_device *video, +extern int uvc_ctrl_get(struct uvc_video_chain *chain, struct v4l2_ext_control *xctrl); -extern int uvc_ctrl_set(struct uvc_video_device *video, +extern int uvc_ctrl_set(struct uvc_video_chain *chain, struct v4l2_ext_control *xctrl); -extern int uvc_xu_ctrl_query(struct uvc_video_device *video, +extern int uvc_xu_ctrl_query(struct uvc_video_chain *chain, struct uvc_xu_control *ctrl, int set); /* Utility functions */ @@ -817,7 +661,7 @@ extern struct usb_host_endpoint *uvc_find_endpoint( struct usb_host_interface *alts, __u8 epaddr); /* Quirks support */ -void uvc_video_decode_isight(struct urb *urb, struct uvc_video_device *video, +void uvc_video_decode_isight(struct urb *urb, struct uvc_streaming *stream, struct uvc_buffer *buf); #endif /* __KERNEL__ */ |