From 95280e5163ea457ccb442bc9d6c003c803d13894 Mon Sep 17 00:00:00 2001 From: John Cox Date: Fri, 6 Aug 2021 10:47:11 +0100 Subject: [PATCH] media: v4l2: Remove v4l2-ctrls.c v4l2-ctrls.c has been split into 4 files v4l2-ctrls-*.c, the original is redundant, confusing and probably should have been removed by a previous patch. Signed-off-by: John Cox --- drivers/media/v4l2-core/v4l2-ctrls.c | 5046 -------------------------- 1 file changed, 5046 deletions(-) delete mode 100644 drivers/media/v4l2-core/v4l2-ctrls.c --- a/drivers/media/v4l2-core/v4l2-ctrls.c +++ /dev/null @@ -1,5046 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-or-later -/* - V4L2 controls framework implementation. - - Copyright (C) 2010 Hans Verkuil - - */ - -#define pr_fmt(fmt) "v4l2-ctrls: " fmt - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#define dprintk(vdev, fmt, arg...) do { \ - if (!WARN_ON(!(vdev)) && ((vdev)->dev_debug & V4L2_DEV_DEBUG_CTRL)) \ - printk(KERN_DEBUG pr_fmt("%s: %s: " fmt), \ - __func__, video_device_node_name(vdev), ##arg); \ -} while (0) - -#define has_op(master, op) \ - (master->ops && master->ops->op) -#define call_op(master, op) \ - (has_op(master, op) ? master->ops->op(master) : 0) - -static const union v4l2_ctrl_ptr ptr_null; - -/* Internal temporary helper struct, one for each v4l2_ext_control */ -struct v4l2_ctrl_helper { - /* Pointer to the control reference of the master control */ - struct v4l2_ctrl_ref *mref; - /* The control ref corresponding to the v4l2_ext_control ID field. */ - struct v4l2_ctrl_ref *ref; - /* v4l2_ext_control index of the next control belonging to the - same cluster, or 0 if there isn't any. */ - u32 next; -}; - -/* Small helper function to determine if the autocluster is set to manual - mode. */ -static bool is_cur_manual(const struct v4l2_ctrl *master) -{ - return master->is_auto && master->cur.val == master->manual_mode_value; -} - -/* Same as above, but this checks the against the new value instead of the - current value. */ -static bool is_new_manual(const struct v4l2_ctrl *master) -{ - return master->is_auto && master->val == master->manual_mode_value; -} - -/* Returns NULL or a character pointer array containing the menu for - the given control ID. The pointer array ends with a NULL pointer. - An empty string signifies a menu entry that is invalid. This allows - drivers to disable certain options if it is not supported. */ -const char * const *v4l2_ctrl_get_menu(u32 id) -{ - static const char * const mpeg_audio_sampling_freq[] = { - "44.1 kHz", - "48 kHz", - "32 kHz", - NULL - }; - static const char * const mpeg_audio_encoding[] = { - "MPEG-1/2 Layer I", - "MPEG-1/2 Layer II", - "MPEG-1/2 Layer III", - "MPEG-2/4 AAC", - "AC-3", - NULL - }; - static const char * const mpeg_audio_l1_bitrate[] = { - "32 kbps", - "64 kbps", - "96 kbps", - "128 kbps", - "160 kbps", - "192 kbps", - "224 kbps", - "256 kbps", - "288 kbps", - "320 kbps", - "352 kbps", - "384 kbps", - "416 kbps", - "448 kbps", - NULL - }; - static const char * const mpeg_audio_l2_bitrate[] = { - "32 kbps", - "48 kbps", - "56 kbps", - "64 kbps", - "80 kbps", - "96 kbps", - "112 kbps", - "128 kbps", - "160 kbps", - "192 kbps", - "224 kbps", - "256 kbps", - "320 kbps", - "384 kbps", - NULL - }; - static const char * const mpeg_audio_l3_bitrate[] = { - "32 kbps", - "40 kbps", - "48 kbps", - "56 kbps", - "64 kbps", - "80 kbps", - "96 kbps", - "112 kbps", - "128 kbps", - "160 kbps", - "192 kbps", - "224 kbps", - "256 kbps", - "320 kbps", - NULL - }; - static const char * const mpeg_audio_ac3_bitrate[] = { - "32 kbps", - "40 kbps", - "48 kbps", - "56 kbps", - "64 kbps", - "80 kbps", - "96 kbps", - "112 kbps", - "128 kbps", - "160 kbps", - "192 kbps", - "224 kbps", - "256 kbps", - "320 kbps", - "384 kbps", - "448 kbps", - "512 kbps", - "576 kbps", - "640 kbps", - NULL - }; - static const char * const mpeg_audio_mode[] = { - "Stereo", - "Joint Stereo", - "Dual", - "Mono", - NULL - }; - static const char * const mpeg_audio_mode_extension[] = { - "Bound 4", - "Bound 8", - "Bound 12", - "Bound 16", - NULL - }; - static const char * const mpeg_audio_emphasis[] = { - "No Emphasis", - "50/15 us", - "CCITT J17", - NULL - }; - static const char * const mpeg_audio_crc[] = { - "No CRC", - "16-bit CRC", - NULL - }; - static const char * const mpeg_audio_dec_playback[] = { - "Auto", - "Stereo", - "Left", - "Right", - "Mono", - "Swapped Stereo", - NULL - }; - static const char * const mpeg_video_encoding[] = { - "MPEG-1", - "MPEG-2", - "MPEG-4 AVC", - NULL - }; - static const char * const mpeg_video_aspect[] = { - "1x1", - "4x3", - "16x9", - "2.21x1", - NULL - }; - static const char * const mpeg_video_bitrate_mode[] = { - "Variable Bitrate", - "Constant Bitrate", - "Constant Quality", - NULL - }; - static const char * const mpeg_stream_type[] = { - "MPEG-2 Program Stream", - "MPEG-2 Transport Stream", - "MPEG-1 System Stream", - "MPEG-2 DVD-compatible Stream", - "MPEG-1 VCD-compatible Stream", - "MPEG-2 SVCD-compatible Stream", - NULL - }; - static const char * const mpeg_stream_vbi_fmt[] = { - "No VBI", - "Private Packet, IVTV Format", - NULL - }; - static const char * const camera_power_line_frequency[] = { - "Disabled", - "50 Hz", - "60 Hz", - "Auto", - NULL - }; - static const char * const camera_exposure_auto[] = { - "Auto Mode", - "Manual Mode", - "Shutter Priority Mode", - "Aperture Priority Mode", - NULL - }; - static const char * const camera_exposure_metering[] = { - "Average", - "Center Weighted", - "Spot", - "Matrix", - NULL - }; - static const char * const camera_auto_focus_range[] = { - "Auto", - "Normal", - "Macro", - "Infinity", - NULL - }; - static const char * const colorfx[] = { - "None", - "Black & White", - "Sepia", - "Negative", - "Emboss", - "Sketch", - "Sky Blue", - "Grass Green", - "Skin Whiten", - "Vivid", - "Aqua", - "Art Freeze", - "Silhouette", - "Solarization", - "Antique", - "Set Cb/Cr", - NULL - }; - static const char * const auto_n_preset_white_balance[] = { - "Manual", - "Auto", - "Incandescent", - "Fluorescent", - "Fluorescent H", - "Horizon", - "Daylight", - "Flash", - "Cloudy", - "Shade", - "Greyworld", - NULL, - }; - static const char * const camera_iso_sensitivity_auto[] = { - "Manual", - "Auto", - NULL - }; - static const char * const scene_mode[] = { - "None", - "Backlight", - "Beach/Snow", - "Candle Light", - "Dusk/Dawn", - "Fall Colors", - "Fireworks", - "Landscape", - "Night", - "Party/Indoor", - "Portrait", - "Sports", - "Sunset", - "Text", - NULL - }; - static const char * const tune_emphasis[] = { - "None", - "50 Microseconds", - "75 Microseconds", - NULL, - }; - static const char * const header_mode[] = { - "Separate Buffer", - "Joined With 1st Frame", - NULL, - }; - static const char * const multi_slice[] = { - "Single", - "Max Macroblocks", - "Max Bytes", - NULL, - }; - static const char * const entropy_mode[] = { - "CAVLC", - "CABAC", - NULL, - }; - static const char * const mpeg_h264_level[] = { - "1", - "1b", - "1.1", - "1.2", - "1.3", - "2", - "2.1", - "2.2", - "3", - "3.1", - "3.2", - "4", - "4.1", - "4.2", - "5", - "5.1", - "5.2", - "6.0", - "6.1", - "6.2", - NULL, - }; - static const char * const h264_loop_filter[] = { - "Enabled", - "Disabled", - "Disabled at Slice Boundary", - NULL, - }; - static const char * const h264_profile[] = { - "Baseline", - "Constrained Baseline", - "Main", - "Extended", - "High", - "High 10", - "High 422", - "High 444 Predictive", - "High 10 Intra", - "High 422 Intra", - "High 444 Intra", - "CAVLC 444 Intra", - "Scalable Baseline", - "Scalable High", - "Scalable High Intra", - "Stereo High", - "Multiview High", - "Constrained High", - NULL, - }; - static const char * const vui_sar_idc[] = { - "Unspecified", - "1:1", - "12:11", - "10:11", - "16:11", - "40:33", - "24:11", - "20:11", - "32:11", - "80:33", - "18:11", - "15:11", - "64:33", - "160:99", - "4:3", - "3:2", - "2:1", - "Extended SAR", - NULL, - }; - static const char * const h264_fp_arrangement_type[] = { - "Checkerboard", - "Column", - "Row", - "Side by Side", - "Top Bottom", - "Temporal", - NULL, - }; - static const char * const h264_fmo_map_type[] = { - "Interleaved Slices", - "Scattered Slices", - "Foreground with Leftover", - "Box Out", - "Raster Scan", - "Wipe Scan", - "Explicit", - NULL, - }; - static const char * const h264_decode_mode[] = { - "Slice-Based", - "Frame-Based", - NULL, - }; - static const char * const h264_start_code[] = { - "No Start Code", - "Annex B Start Code", - NULL, - }; - static const char * const h264_hierarchical_coding_type[] = { - "Hier Coding B", - "Hier Coding P", - NULL, - }; - static const char * const mpeg_mpeg2_level[] = { - "Low", - "Main", - "High 1440", - "High", - NULL, - }; - static const char * const mpeg2_profile[] = { - "Simple", - "Main", - "SNR Scalable", - "Spatially Scalable", - "High", - NULL, - }; - static const char * const mpeg_mpeg4_level[] = { - "0", - "0b", - "1", - "2", - "3", - "3b", - "4", - "5", - NULL, - }; - static const char * const mpeg4_profile[] = { - "Simple", - "Advanced Simple", - "Core", - "Simple Scalable", - "Advanced Coding Efficiency", - NULL, - }; - - static const char * const vpx_golden_frame_sel[] = { - "Use Previous Frame", - "Use Previous Specific Frame", - NULL, - }; - static const char * const vp8_profile[] = { - "0", - "1", - "2", - "3", - NULL, - }; - static const char * const vp9_profile[] = { - "0", - "1", - "2", - "3", - NULL, - }; - static const char * const vp9_level[] = { - "1", - "1.1", - "2", - "2.1", - "3", - "3.1", - "4", - "4.1", - "5", - "5.1", - "5.2", - "6", - "6.1", - "6.2", - NULL, - }; - - static const char * const flash_led_mode[] = { - "Off", - "Flash", - "Torch", - NULL, - }; - static const char * const flash_strobe_source[] = { - "Software", - "External", - NULL, - }; - - static const char * const jpeg_chroma_subsampling[] = { - "4:4:4", - "4:2:2", - "4:2:0", - "4:1:1", - "4:1:0", - "Gray", - NULL, - }; - static const char * const dv_tx_mode[] = { - "DVI-D", - "HDMI", - NULL, - }; - static const char * const dv_rgb_range[] = { - "Automatic", - "RGB Limited Range (16-235)", - "RGB Full Range (0-255)", - NULL, - }; - static const char * const dv_it_content_type[] = { - "Graphics", - "Photo", - "Cinema", - "Game", - "No IT Content", - NULL, - }; - static const char * const detect_md_mode[] = { - "Disabled", - "Global", - "Threshold Grid", - "Region Grid", - NULL, - }; - - static const char * const hevc_profile[] = { - "Main", - "Main Still Picture", - "Main 10", - NULL, - }; - static const char * const hevc_level[] = { - "1", - "2", - "2.1", - "3", - "3.1", - "4", - "4.1", - "5", - "5.1", - "5.2", - "6", - "6.1", - "6.2", - NULL, - }; - static const char * const hevc_hierarchial_coding_type[] = { - "B", - "P", - NULL, - }; - static const char * const hevc_refresh_type[] = { - "None", - "CRA", - "IDR", - NULL, - }; - static const char * const hevc_size_of_length_field[] = { - "0", - "1", - "2", - "4", - NULL, - }; - static const char * const hevc_tier[] = { - "Main", - "High", - NULL, - }; - static const char * const hevc_loop_filter_mode[] = { - "Disabled", - "Enabled", - "Disabled at slice boundary", - "NULL", - }; - static const char * const hevc_decode_mode[] = { - "Slice-Based", - "Frame-Based", - NULL, - }; - static const char * const hevc_start_code[] = { - "No Start Code", - "Annex B Start Code", - NULL, - }; - static const char * const camera_orientation[] = { - "Front", - "Back", - "External", - NULL, - }; - static const char * const mpeg_video_frame_skip[] = { - "Disabled", - "Level Limit", - "VBV/CPB Limit", - NULL, - }; - - switch (id) { - case V4L2_CID_MPEG_AUDIO_SAMPLING_FREQ: - return mpeg_audio_sampling_freq; - case V4L2_CID_MPEG_AUDIO_ENCODING: - return mpeg_audio_encoding; - case V4L2_CID_MPEG_AUDIO_L1_BITRATE: - return mpeg_audio_l1_bitrate; - case V4L2_CID_MPEG_AUDIO_L2_BITRATE: - return mpeg_audio_l2_bitrate; - case V4L2_CID_MPEG_AUDIO_L3_BITRATE: - return mpeg_audio_l3_bitrate; - case V4L2_CID_MPEG_AUDIO_AC3_BITRATE: - return mpeg_audio_ac3_bitrate; - case V4L2_CID_MPEG_AUDIO_MODE: - return mpeg_audio_mode; - case V4L2_CID_MPEG_AUDIO_MODE_EXTENSION: - return mpeg_audio_mode_extension; - case V4L2_CID_MPEG_AUDIO_EMPHASIS: - return mpeg_audio_emphasis; - case V4L2_CID_MPEG_AUDIO_CRC: - return mpeg_audio_crc; - case V4L2_CID_MPEG_AUDIO_DEC_PLAYBACK: - case V4L2_CID_MPEG_AUDIO_DEC_MULTILINGUAL_PLAYBACK: - return mpeg_audio_dec_playback; - case V4L2_CID_MPEG_VIDEO_ENCODING: - return mpeg_video_encoding; - case V4L2_CID_MPEG_VIDEO_ASPECT: - return mpeg_video_aspect; - case V4L2_CID_MPEG_VIDEO_BITRATE_MODE: - return mpeg_video_bitrate_mode; - case V4L2_CID_MPEG_STREAM_TYPE: - return mpeg_stream_type; - case V4L2_CID_MPEG_STREAM_VBI_FMT: - return mpeg_stream_vbi_fmt; - case V4L2_CID_POWER_LINE_FREQUENCY: - return camera_power_line_frequency; - case V4L2_CID_EXPOSURE_AUTO: - return camera_exposure_auto; - case V4L2_CID_EXPOSURE_METERING: - return camera_exposure_metering; - case V4L2_CID_AUTO_FOCUS_RANGE: - return camera_auto_focus_range; - case V4L2_CID_COLORFX: - return colorfx; - case V4L2_CID_AUTO_N_PRESET_WHITE_BALANCE: - return auto_n_preset_white_balance; - case V4L2_CID_ISO_SENSITIVITY_AUTO: - return camera_iso_sensitivity_auto; - case V4L2_CID_SCENE_MODE: - return scene_mode; - case V4L2_CID_TUNE_PREEMPHASIS: - return tune_emphasis; - case V4L2_CID_TUNE_DEEMPHASIS: - return tune_emphasis; - case V4L2_CID_FLASH_LED_MODE: - return flash_led_mode; - case V4L2_CID_FLASH_STROBE_SOURCE: - return flash_strobe_source; - case V4L2_CID_MPEG_VIDEO_HEADER_MODE: - return header_mode; - case V4L2_CID_MPEG_VIDEO_FRAME_SKIP_MODE: - return mpeg_video_frame_skip; - case V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MODE: - return multi_slice; - case V4L2_CID_MPEG_VIDEO_H264_ENTROPY_MODE: - return entropy_mode; - case V4L2_CID_MPEG_VIDEO_H264_LEVEL: - return mpeg_h264_level; - case V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_MODE: - return h264_loop_filter; - case V4L2_CID_MPEG_VIDEO_H264_PROFILE: - return h264_profile; - case V4L2_CID_MPEG_VIDEO_H264_VUI_SAR_IDC: - return vui_sar_idc; - case V4L2_CID_MPEG_VIDEO_H264_SEI_FP_ARRANGEMENT_TYPE: - return h264_fp_arrangement_type; - case V4L2_CID_MPEG_VIDEO_H264_FMO_MAP_TYPE: - return h264_fmo_map_type; - case V4L2_CID_STATELESS_H264_DECODE_MODE: - return h264_decode_mode; - case V4L2_CID_STATELESS_H264_START_CODE: - return h264_start_code; - case V4L2_CID_MPEG_VIDEO_H264_HIERARCHICAL_CODING_TYPE: - return h264_hierarchical_coding_type; - case V4L2_CID_MPEG_VIDEO_MPEG2_LEVEL: - return mpeg_mpeg2_level; - case V4L2_CID_MPEG_VIDEO_MPEG2_PROFILE: - return mpeg2_profile; - case V4L2_CID_MPEG_VIDEO_MPEG4_LEVEL: - return mpeg_mpeg4_level; - case V4L2_CID_MPEG_VIDEO_MPEG4_PROFILE: - return mpeg4_profile; - case V4L2_CID_MPEG_VIDEO_VPX_GOLDEN_FRAME_SEL: - return vpx_golden_frame_sel; - case V4L2_CID_MPEG_VIDEO_VP8_PROFILE: - return vp8_profile; - case V4L2_CID_MPEG_VIDEO_VP9_PROFILE: - return vp9_profile; - case V4L2_CID_MPEG_VIDEO_VP9_LEVEL: - return vp9_level; - case V4L2_CID_JPEG_CHROMA_SUBSAMPLING: - return jpeg_chroma_subsampling; - case V4L2_CID_DV_TX_MODE: - return dv_tx_mode; - case V4L2_CID_DV_TX_RGB_RANGE: - case V4L2_CID_DV_RX_RGB_RANGE: - return dv_rgb_range; - case V4L2_CID_DV_TX_IT_CONTENT_TYPE: - case V4L2_CID_DV_RX_IT_CONTENT_TYPE: - return dv_it_content_type; - case V4L2_CID_DETECT_MD_MODE: - return detect_md_mode; - case V4L2_CID_MPEG_VIDEO_HEVC_PROFILE: - return hevc_profile; - case V4L2_CID_MPEG_VIDEO_HEVC_LEVEL: - return hevc_level; - case V4L2_CID_MPEG_VIDEO_HEVC_HIER_CODING_TYPE: - return hevc_hierarchial_coding_type; - case V4L2_CID_MPEG_VIDEO_HEVC_REFRESH_TYPE: - return hevc_refresh_type; - case V4L2_CID_MPEG_VIDEO_HEVC_SIZE_OF_LENGTH_FIELD: - return hevc_size_of_length_field; - case V4L2_CID_MPEG_VIDEO_HEVC_TIER: - return hevc_tier; - case V4L2_CID_MPEG_VIDEO_HEVC_LOOP_FILTER_MODE: - return hevc_loop_filter_mode; - case V4L2_CID_MPEG_VIDEO_HEVC_DECODE_MODE: - return hevc_decode_mode; - case V4L2_CID_MPEG_VIDEO_HEVC_START_CODE: - return hevc_start_code; - case V4L2_CID_CAMERA_ORIENTATION: - return camera_orientation; - default: - return NULL; - } -} -EXPORT_SYMBOL(v4l2_ctrl_get_menu); - -#define __v4l2_qmenu_int_len(arr, len) ({ *(len) = ARRAY_SIZE(arr); arr; }) -/* - * Returns NULL or an s64 type array containing the menu for given - * control ID. The total number of the menu items is returned in @len. - */ -const s64 *v4l2_ctrl_get_int_menu(u32 id, u32 *len) -{ - static const s64 qmenu_int_vpx_num_partitions[] = { - 1, 2, 4, 8, - }; - - static const s64 qmenu_int_vpx_num_ref_frames[] = { - 1, 2, 3, - }; - - switch (id) { - case V4L2_CID_MPEG_VIDEO_VPX_NUM_PARTITIONS: - return __v4l2_qmenu_int_len(qmenu_int_vpx_num_partitions, len); - case V4L2_CID_MPEG_VIDEO_VPX_NUM_REF_FRAMES: - return __v4l2_qmenu_int_len(qmenu_int_vpx_num_ref_frames, len); - default: - *len = 0; - return NULL; - } -} -EXPORT_SYMBOL(v4l2_ctrl_get_int_menu); - -/* Return the control name. */ -const char *v4l2_ctrl_get_name(u32 id) -{ - switch (id) { - /* USER controls */ - /* Keep the order of the 'case's the same as in v4l2-controls.h! */ - case V4L2_CID_USER_CLASS: return "User Controls"; - case V4L2_CID_BRIGHTNESS: return "Brightness"; - case V4L2_CID_CONTRAST: return "Contrast"; - case V4L2_CID_SATURATION: return "Saturation"; - case V4L2_CID_HUE: return "Hue"; - case V4L2_CID_AUDIO_VOLUME: return "Volume"; - case V4L2_CID_AUDIO_BALANCE: return "Balance"; - case V4L2_CID_AUDIO_BASS: return "Bass"; - case V4L2_CID_AUDIO_TREBLE: return "Treble"; - case V4L2_CID_AUDIO_MUTE: return "Mute"; - case V4L2_CID_AUDIO_LOUDNESS: return "Loudness"; - case V4L2_CID_BLACK_LEVEL: return "Black Level"; - case V4L2_CID_AUTO_WHITE_BALANCE: return "White Balance, Automatic"; - case V4L2_CID_DO_WHITE_BALANCE: return "Do White Balance"; - case V4L2_CID_RED_BALANCE: return "Red Balance"; - case V4L2_CID_BLUE_BALANCE: return "Blue Balance"; - case V4L2_CID_GAMMA: return "Gamma"; - case V4L2_CID_EXPOSURE: return "Exposure"; - case V4L2_CID_AUTOGAIN: return "Gain, Automatic"; - case V4L2_CID_GAIN: return "Gain"; - case V4L2_CID_HFLIP: return "Horizontal Flip"; - case V4L2_CID_VFLIP: return "Vertical Flip"; - case V4L2_CID_POWER_LINE_FREQUENCY: return "Power Line Frequency"; - case V4L2_CID_HUE_AUTO: return "Hue, Automatic"; - case V4L2_CID_WHITE_BALANCE_TEMPERATURE: return "White Balance Temperature"; - case V4L2_CID_SHARPNESS: return "Sharpness"; - case V4L2_CID_BACKLIGHT_COMPENSATION: return "Backlight Compensation"; - case V4L2_CID_CHROMA_AGC: return "Chroma AGC"; - case V4L2_CID_COLOR_KILLER: return "Color Killer"; - case V4L2_CID_COLORFX: return "Color Effects"; - case V4L2_CID_AUTOBRIGHTNESS: return "Brightness, Automatic"; - case V4L2_CID_BAND_STOP_FILTER: return "Band-Stop Filter"; - case V4L2_CID_ROTATE: return "Rotate"; - case V4L2_CID_BG_COLOR: return "Background Color"; - case V4L2_CID_CHROMA_GAIN: return "Chroma Gain"; - case V4L2_CID_ILLUMINATORS_1: return "Illuminator 1"; - case V4L2_CID_ILLUMINATORS_2: return "Illuminator 2"; - case V4L2_CID_MIN_BUFFERS_FOR_CAPTURE: return "Min Number of Capture Buffers"; - case V4L2_CID_MIN_BUFFERS_FOR_OUTPUT: return "Min Number of Output Buffers"; - case V4L2_CID_ALPHA_COMPONENT: return "Alpha Component"; - case V4L2_CID_COLORFX_CBCR: return "Color Effects, CbCr"; - - /* Codec controls */ - /* The MPEG controls are applicable to all codec controls - * and the 'MPEG' part of the define is historical */ - /* Keep the order of the 'case's the same as in videodev2.h! */ - case V4L2_CID_CODEC_CLASS: return "Codec Controls"; - case V4L2_CID_MPEG_STREAM_TYPE: return "Stream Type"; - case V4L2_CID_MPEG_STREAM_PID_PMT: return "Stream PMT Program ID"; - case V4L2_CID_MPEG_STREAM_PID_AUDIO: return "Stream Audio Program ID"; - case V4L2_CID_MPEG_STREAM_PID_VIDEO: return "Stream Video Program ID"; - case V4L2_CID_MPEG_STREAM_PID_PCR: return "Stream PCR Program ID"; - case V4L2_CID_MPEG_STREAM_PES_ID_AUDIO: return "Stream PES Audio ID"; - case V4L2_CID_MPEG_STREAM_PES_ID_VIDEO: return "Stream PES Video ID"; - case V4L2_CID_MPEG_STREAM_VBI_FMT: return "Stream VBI Format"; - case V4L2_CID_MPEG_AUDIO_SAMPLING_FREQ: return "Audio Sampling Frequency"; - case V4L2_CID_MPEG_AUDIO_ENCODING: return "Audio Encoding"; - case V4L2_CID_MPEG_AUDIO_L1_BITRATE: return "Audio Layer I Bitrate"; - case V4L2_CID_MPEG_AUDIO_L2_BITRATE: return "Audio Layer II Bitrate"; - case V4L2_CID_MPEG_AUDIO_L3_BITRATE: return "Audio Layer III Bitrate"; - case V4L2_CID_MPEG_AUDIO_MODE: return "Audio Stereo Mode"; - case V4L2_CID_MPEG_AUDIO_MODE_EXTENSION: return "Audio Stereo Mode Extension"; - case V4L2_CID_MPEG_AUDIO_EMPHASIS: return "Audio Emphasis"; - case V4L2_CID_MPEG_AUDIO_CRC: return "Audio CRC"; - case V4L2_CID_MPEG_AUDIO_MUTE: return "Audio Mute"; - case V4L2_CID_MPEG_AUDIO_AAC_BITRATE: return "Audio AAC Bitrate"; - case V4L2_CID_MPEG_AUDIO_AC3_BITRATE: return "Audio AC-3 Bitrate"; - case V4L2_CID_MPEG_AUDIO_DEC_PLAYBACK: return "Audio Playback"; - case V4L2_CID_MPEG_AUDIO_DEC_MULTILINGUAL_PLAYBACK: return "Audio Multilingual Playback"; - case V4L2_CID_MPEG_VIDEO_ENCODING: return "Video Encoding"; - case V4L2_CID_MPEG_VIDEO_ASPECT: return "Video Aspect"; - case V4L2_CID_MPEG_VIDEO_B_FRAMES: return "Video B Frames"; - case V4L2_CID_MPEG_VIDEO_GOP_SIZE: return "Video GOP Size"; - case V4L2_CID_MPEG_VIDEO_GOP_CLOSURE: return "Video GOP Closure"; - case V4L2_CID_MPEG_VIDEO_PULLDOWN: return "Video Pulldown"; - case V4L2_CID_MPEG_VIDEO_BITRATE_MODE: return "Video Bitrate Mode"; - case V4L2_CID_MPEG_VIDEO_CONSTANT_QUALITY: return "Constant Quality"; - case V4L2_CID_MPEG_VIDEO_BITRATE: return "Video Bitrate"; - case V4L2_CID_MPEG_VIDEO_BITRATE_PEAK: return "Video Peak Bitrate"; - case V4L2_CID_MPEG_VIDEO_TEMPORAL_DECIMATION: return "Video Temporal Decimation"; - case V4L2_CID_MPEG_VIDEO_MUTE: return "Video Mute"; - case V4L2_CID_MPEG_VIDEO_MUTE_YUV: return "Video Mute YUV"; - case V4L2_CID_MPEG_VIDEO_DECODER_SLICE_INTERFACE: return "Decoder Slice Interface"; - case V4L2_CID_MPEG_VIDEO_DECODER_MPEG4_DEBLOCK_FILTER: return "MPEG4 Loop Filter Enable"; - case V4L2_CID_MPEG_VIDEO_CYCLIC_INTRA_REFRESH_MB: return "Number of Intra Refresh MBs"; - case V4L2_CID_MPEG_VIDEO_FRAME_RC_ENABLE: return "Frame Level Rate Control Enable"; - case V4L2_CID_MPEG_VIDEO_MB_RC_ENABLE: return "H264 MB Level Rate Control"; - case V4L2_CID_MPEG_VIDEO_HEADER_MODE: return "Sequence Header Mode"; - case V4L2_CID_MPEG_VIDEO_MAX_REF_PIC: return "Max Number of Reference Pics"; - case V4L2_CID_MPEG_VIDEO_FRAME_SKIP_MODE: return "Frame Skip Mode"; - case V4L2_CID_MPEG_VIDEO_DEC_DISPLAY_DELAY: return "Display Delay"; - case V4L2_CID_MPEG_VIDEO_DEC_DISPLAY_DELAY_ENABLE: return "Display Delay Enable"; - case V4L2_CID_MPEG_VIDEO_AU_DELIMITER: return "Generate Access Unit Delimiters"; - case V4L2_CID_MPEG_VIDEO_H263_I_FRAME_QP: return "H263 I-Frame QP Value"; - case V4L2_CID_MPEG_VIDEO_H263_P_FRAME_QP: return "H263 P-Frame QP Value"; - case V4L2_CID_MPEG_VIDEO_H263_B_FRAME_QP: return "H263 B-Frame QP Value"; - case V4L2_CID_MPEG_VIDEO_H263_MIN_QP: return "H263 Minimum QP Value"; - case V4L2_CID_MPEG_VIDEO_H263_MAX_QP: return "H263 Maximum QP Value"; - case V4L2_CID_MPEG_VIDEO_H264_I_FRAME_QP: return "H264 I-Frame QP Value"; - case V4L2_CID_MPEG_VIDEO_H264_P_FRAME_QP: return "H264 P-Frame QP Value"; - case V4L2_CID_MPEG_VIDEO_H264_B_FRAME_QP: return "H264 B-Frame QP Value"; - case V4L2_CID_MPEG_VIDEO_H264_MAX_QP: return "H264 Maximum QP Value"; - case V4L2_CID_MPEG_VIDEO_H264_MIN_QP: return "H264 Minimum QP Value"; - case V4L2_CID_MPEG_VIDEO_H264_8X8_TRANSFORM: return "H264 8x8 Transform Enable"; - case V4L2_CID_MPEG_VIDEO_H264_CPB_SIZE: return "H264 CPB Buffer Size"; - case V4L2_CID_MPEG_VIDEO_H264_ENTROPY_MODE: return "H264 Entropy Mode"; - case V4L2_CID_MPEG_VIDEO_H264_I_PERIOD: return "H264 I-Frame Period"; - case V4L2_CID_MPEG_VIDEO_H264_LEVEL: return "H264 Level"; - case V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_ALPHA: return "H264 Loop Filter Alpha Offset"; - case V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_BETA: return "H264 Loop Filter Beta Offset"; - case V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_MODE: return "H264 Loop Filter Mode"; - case V4L2_CID_MPEG_VIDEO_H264_PROFILE: return "H264 Profile"; - case V4L2_CID_MPEG_VIDEO_H264_VUI_EXT_SAR_HEIGHT: return "Vertical Size of SAR"; - case V4L2_CID_MPEG_VIDEO_H264_VUI_EXT_SAR_WIDTH: return "Horizontal Size of SAR"; - case V4L2_CID_MPEG_VIDEO_H264_VUI_SAR_ENABLE: return "Aspect Ratio VUI Enable"; - case V4L2_CID_MPEG_VIDEO_H264_VUI_SAR_IDC: return "VUI Aspect Ratio IDC"; - case V4L2_CID_MPEG_VIDEO_H264_SEI_FRAME_PACKING: return "H264 Enable Frame Packing SEI"; - case V4L2_CID_MPEG_VIDEO_H264_SEI_FP_CURRENT_FRAME_0: return "H264 Set Curr. Frame as Frame0"; - case V4L2_CID_MPEG_VIDEO_H264_SEI_FP_ARRANGEMENT_TYPE: return "H264 FP Arrangement Type"; - case V4L2_CID_MPEG_VIDEO_H264_FMO: return "H264 Flexible MB Ordering"; - case V4L2_CID_MPEG_VIDEO_H264_FMO_MAP_TYPE: return "H264 Map Type for FMO"; - case V4L2_CID_MPEG_VIDEO_H264_FMO_SLICE_GROUP: return "H264 FMO Number of Slice Groups"; - case V4L2_CID_MPEG_VIDEO_H264_FMO_CHANGE_DIRECTION: return "H264 FMO Direction of Change"; - case V4L2_CID_MPEG_VIDEO_H264_FMO_CHANGE_RATE: return "H264 FMO Size of 1st Slice Grp"; - case V4L2_CID_MPEG_VIDEO_H264_FMO_RUN_LENGTH: return "H264 FMO No. of Consecutive MBs"; - case V4L2_CID_MPEG_VIDEO_H264_ASO: return "H264 Arbitrary Slice Ordering"; - case V4L2_CID_MPEG_VIDEO_H264_ASO_SLICE_ORDER: return "H264 ASO Slice Order"; - case V4L2_CID_MPEG_VIDEO_H264_HIERARCHICAL_CODING: return "Enable H264 Hierarchical Coding"; - case V4L2_CID_MPEG_VIDEO_H264_HIERARCHICAL_CODING_TYPE: return "H264 Hierarchical Coding Type"; - case V4L2_CID_MPEG_VIDEO_H264_HIERARCHICAL_CODING_LAYER:return "H264 Number of HC Layers"; - case V4L2_CID_MPEG_VIDEO_H264_HIERARCHICAL_CODING_LAYER_QP: - return "H264 Set QP Value for HC Layers"; - case V4L2_CID_MPEG_VIDEO_H264_CONSTRAINED_INTRA_PREDICTION: - return "H264 Constrained Intra Pred"; - case V4L2_CID_MPEG_VIDEO_H264_CHROMA_QP_INDEX_OFFSET: return "H264 Chroma QP Index Offset"; - case V4L2_CID_MPEG_VIDEO_H264_I_FRAME_MIN_QP: return "H264 I-Frame Minimum QP Value"; - case V4L2_CID_MPEG_VIDEO_H264_I_FRAME_MAX_QP: return "H264 I-Frame Maximum QP Value"; - case V4L2_CID_MPEG_VIDEO_H264_P_FRAME_MIN_QP: return "H264 P-Frame Minimum QP Value"; - case V4L2_CID_MPEG_VIDEO_H264_P_FRAME_MAX_QP: return "H264 P-Frame Maximum QP Value"; - case V4L2_CID_MPEG_VIDEO_H264_B_FRAME_MIN_QP: return "H264 B-Frame Minimum QP Value"; - case V4L2_CID_MPEG_VIDEO_H264_B_FRAME_MAX_QP: return "H264 B-Frame Maximum QP Value"; - case V4L2_CID_MPEG_VIDEO_H264_HIER_CODING_L0_BR: return "H264 Hierarchical Lay 0 Bitrate"; - case V4L2_CID_MPEG_VIDEO_H264_HIER_CODING_L1_BR: return "H264 Hierarchical Lay 1 Bitrate"; - case V4L2_CID_MPEG_VIDEO_H264_HIER_CODING_L2_BR: return "H264 Hierarchical Lay 2 Bitrate"; - case V4L2_CID_MPEG_VIDEO_H264_HIER_CODING_L3_BR: return "H264 Hierarchical Lay 3 Bitrate"; - case V4L2_CID_MPEG_VIDEO_H264_HIER_CODING_L4_BR: return "H264 Hierarchical Lay 4 Bitrate"; - case V4L2_CID_MPEG_VIDEO_H264_HIER_CODING_L5_BR: return "H264 Hierarchical Lay 5 Bitrate"; - case V4L2_CID_MPEG_VIDEO_H264_HIER_CODING_L6_BR: return "H264 Hierarchical Lay 6 Bitrate"; - case V4L2_CID_MPEG_VIDEO_MPEG2_LEVEL: return "MPEG2 Level"; - case V4L2_CID_MPEG_VIDEO_MPEG2_PROFILE: return "MPEG2 Profile"; - case V4L2_CID_MPEG_VIDEO_MPEG4_I_FRAME_QP: return "MPEG4 I-Frame QP Value"; - case V4L2_CID_MPEG_VIDEO_MPEG4_P_FRAME_QP: return "MPEG4 P-Frame QP Value"; - case V4L2_CID_MPEG_VIDEO_MPEG4_B_FRAME_QP: return "MPEG4 B-Frame QP Value"; - case V4L2_CID_MPEG_VIDEO_MPEG4_MIN_QP: return "MPEG4 Minimum QP Value"; - case V4L2_CID_MPEG_VIDEO_MPEG4_MAX_QP: return "MPEG4 Maximum QP Value"; - case V4L2_CID_MPEG_VIDEO_MPEG4_LEVEL: return "MPEG4 Level"; - case V4L2_CID_MPEG_VIDEO_MPEG4_PROFILE: return "MPEG4 Profile"; - case V4L2_CID_MPEG_VIDEO_MPEG4_QPEL: return "Quarter Pixel Search Enable"; - case V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MAX_BYTES: return "Maximum Bytes in a Slice"; - case V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MAX_MB: return "Number of MBs in a Slice"; - case V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MODE: return "Slice Partitioning Method"; - case V4L2_CID_MPEG_VIDEO_VBV_SIZE: return "VBV Buffer Size"; - case V4L2_CID_MPEG_VIDEO_DEC_PTS: return "Video Decoder PTS"; - case V4L2_CID_MPEG_VIDEO_DEC_FRAME: return "Video Decoder Frame Count"; - case V4L2_CID_MPEG_VIDEO_DEC_CONCEAL_COLOR: return "Video Decoder Conceal Color"; - case V4L2_CID_MPEG_VIDEO_VBV_DELAY: return "Initial Delay for VBV Control"; - case V4L2_CID_MPEG_VIDEO_MV_H_SEARCH_RANGE: return "Horizontal MV Search Range"; - case V4L2_CID_MPEG_VIDEO_MV_V_SEARCH_RANGE: return "Vertical MV Search Range"; - case V4L2_CID_MPEG_VIDEO_REPEAT_SEQ_HEADER: return "Repeat Sequence Header"; - case V4L2_CID_MPEG_VIDEO_FORCE_KEY_FRAME: return "Force Key Frame"; - case V4L2_CID_MPEG_VIDEO_BASELAYER_PRIORITY_ID: return "Base Layer Priority ID"; - case V4L2_CID_MPEG_VIDEO_LTR_COUNT: return "LTR Count"; - case V4L2_CID_MPEG_VIDEO_FRAME_LTR_INDEX: return "Frame LTR Index"; - case V4L2_CID_MPEG_VIDEO_USE_LTR_FRAMES: return "Use LTR Frames"; - case V4L2_CID_MPEG_VIDEO_MPEG2_SLICE_PARAMS: return "MPEG-2 Slice Parameters"; - case V4L2_CID_MPEG_VIDEO_MPEG2_QUANTIZATION: return "MPEG-2 Quantization Matrices"; - case V4L2_CID_FWHT_I_FRAME_QP: return "FWHT I-Frame QP Value"; - case V4L2_CID_FWHT_P_FRAME_QP: return "FWHT P-Frame QP Value"; - - /* VPX controls */ - case V4L2_CID_MPEG_VIDEO_VPX_NUM_PARTITIONS: return "VPX Number of Partitions"; - case V4L2_CID_MPEG_VIDEO_VPX_IMD_DISABLE_4X4: return "VPX Intra Mode Decision Disable"; - case V4L2_CID_MPEG_VIDEO_VPX_NUM_REF_FRAMES: return "VPX No. of Refs for P Frame"; - case V4L2_CID_MPEG_VIDEO_VPX_FILTER_LEVEL: return "VPX Loop Filter Level Range"; - case V4L2_CID_MPEG_VIDEO_VPX_FILTER_SHARPNESS: return "VPX Deblocking Effect Control"; - case V4L2_CID_MPEG_VIDEO_VPX_GOLDEN_FRAME_REF_PERIOD: return "VPX Golden Frame Refresh Period"; - case V4L2_CID_MPEG_VIDEO_VPX_GOLDEN_FRAME_SEL: return "VPX Golden Frame Indicator"; - case V4L2_CID_MPEG_VIDEO_VPX_MIN_QP: return "VPX Minimum QP Value"; - case V4L2_CID_MPEG_VIDEO_VPX_MAX_QP: return "VPX Maximum QP Value"; - case V4L2_CID_MPEG_VIDEO_VPX_I_FRAME_QP: return "VPX I-Frame QP Value"; - case V4L2_CID_MPEG_VIDEO_VPX_P_FRAME_QP: return "VPX P-Frame QP Value"; - case V4L2_CID_MPEG_VIDEO_VP8_PROFILE: return "VP8 Profile"; - case V4L2_CID_MPEG_VIDEO_VP9_PROFILE: return "VP9 Profile"; - case V4L2_CID_MPEG_VIDEO_VP9_LEVEL: return "VP9 Level"; - - /* HEVC controls */ - case V4L2_CID_MPEG_VIDEO_HEVC_I_FRAME_QP: return "HEVC I-Frame QP Value"; - case V4L2_CID_MPEG_VIDEO_HEVC_P_FRAME_QP: return "HEVC P-Frame QP Value"; - case V4L2_CID_MPEG_VIDEO_HEVC_B_FRAME_QP: return "HEVC B-Frame QP Value"; - case V4L2_CID_MPEG_VIDEO_HEVC_MIN_QP: return "HEVC Minimum QP Value"; - case V4L2_CID_MPEG_VIDEO_HEVC_MAX_QP: return "HEVC Maximum QP Value"; - case V4L2_CID_MPEG_VIDEO_HEVC_I_FRAME_MIN_QP: return "HEVC I-Frame Minimum QP Value"; - case V4L2_CID_MPEG_VIDEO_HEVC_I_FRAME_MAX_QP: return "HEVC I-Frame Maximum QP Value"; - case V4L2_CID_MPEG_VIDEO_HEVC_P_FRAME_MIN_QP: return "HEVC P-Frame Minimum QP Value"; - case V4L2_CID_MPEG_VIDEO_HEVC_P_FRAME_MAX_QP: return "HEVC P-Frame Maximum QP Value"; - case V4L2_CID_MPEG_VIDEO_HEVC_B_FRAME_MIN_QP: return "HEVC B-Frame Minimum QP Value"; - case V4L2_CID_MPEG_VIDEO_HEVC_B_FRAME_MAX_QP: return "HEVC B-Frame Maximum QP Value"; - case V4L2_CID_MPEG_VIDEO_HEVC_PROFILE: return "HEVC Profile"; - case V4L2_CID_MPEG_VIDEO_HEVC_LEVEL: return "HEVC Level"; - case V4L2_CID_MPEG_VIDEO_HEVC_TIER: return "HEVC Tier"; - case V4L2_CID_MPEG_VIDEO_HEVC_FRAME_RATE_RESOLUTION: return "HEVC Frame Rate Resolution"; - case V4L2_CID_MPEG_VIDEO_HEVC_MAX_PARTITION_DEPTH: return "HEVC Maximum Coding Unit Depth"; - case V4L2_CID_MPEG_VIDEO_HEVC_REFRESH_TYPE: return "HEVC Refresh Type"; - case V4L2_CID_MPEG_VIDEO_HEVC_CONST_INTRA_PRED: return "HEVC Constant Intra Prediction"; - case V4L2_CID_MPEG_VIDEO_HEVC_LOSSLESS_CU: return "HEVC Lossless Encoding"; - case V4L2_CID_MPEG_VIDEO_HEVC_WAVEFRONT: return "HEVC Wavefront"; - case V4L2_CID_MPEG_VIDEO_HEVC_LOOP_FILTER_MODE: return "HEVC Loop Filter"; - case V4L2_CID_MPEG_VIDEO_HEVC_HIER_QP: return "HEVC QP Values"; - case V4L2_CID_MPEG_VIDEO_HEVC_HIER_CODING_TYPE: return "HEVC Hierarchical Coding Type"; - case V4L2_CID_MPEG_VIDEO_HEVC_HIER_CODING_LAYER: return "HEVC Hierarchical Coding Layer"; - case V4L2_CID_MPEG_VIDEO_HEVC_HIER_CODING_L0_QP: return "HEVC Hierarchical Layer 0 QP"; - case V4L2_CID_MPEG_VIDEO_HEVC_HIER_CODING_L1_QP: return "HEVC Hierarchical Layer 1 QP"; - case V4L2_CID_MPEG_VIDEO_HEVC_HIER_CODING_L2_QP: return "HEVC Hierarchical Layer 2 QP"; - case V4L2_CID_MPEG_VIDEO_HEVC_HIER_CODING_L3_QP: return "HEVC Hierarchical Layer 3 QP"; - case V4L2_CID_MPEG_VIDEO_HEVC_HIER_CODING_L4_QP: return "HEVC Hierarchical Layer 4 QP"; - case V4L2_CID_MPEG_VIDEO_HEVC_HIER_CODING_L5_QP: return "HEVC Hierarchical Layer 5 QP"; - case V4L2_CID_MPEG_VIDEO_HEVC_HIER_CODING_L6_QP: return "HEVC Hierarchical Layer 6 QP"; - case V4L2_CID_MPEG_VIDEO_HEVC_HIER_CODING_L0_BR: return "HEVC Hierarchical Lay 0 BitRate"; - case V4L2_CID_MPEG_VIDEO_HEVC_HIER_CODING_L1_BR: return "HEVC Hierarchical Lay 1 BitRate"; - case V4L2_CID_MPEG_VIDEO_HEVC_HIER_CODING_L2_BR: return "HEVC Hierarchical Lay 2 BitRate"; - case V4L2_CID_MPEG_VIDEO_HEVC_HIER_CODING_L3_BR: return "HEVC Hierarchical Lay 3 BitRate"; - case V4L2_CID_MPEG_VIDEO_HEVC_HIER_CODING_L4_BR: return "HEVC Hierarchical Lay 4 BitRate"; - case V4L2_CID_MPEG_VIDEO_HEVC_HIER_CODING_L5_BR: return "HEVC Hierarchical Lay 5 BitRate"; - case V4L2_CID_MPEG_VIDEO_HEVC_HIER_CODING_L6_BR: return "HEVC Hierarchical Lay 6 BitRate"; - case V4L2_CID_MPEG_VIDEO_HEVC_GENERAL_PB: return "HEVC General PB"; - case V4L2_CID_MPEG_VIDEO_HEVC_TEMPORAL_ID: return "HEVC Temporal ID"; - case V4L2_CID_MPEG_VIDEO_HEVC_STRONG_SMOOTHING: return "HEVC Strong Intra Smoothing"; - case V4L2_CID_MPEG_VIDEO_HEVC_INTRA_PU_SPLIT: return "HEVC Intra PU Split"; - case V4L2_CID_MPEG_VIDEO_HEVC_TMV_PREDICTION: return "HEVC TMV Prediction"; - case V4L2_CID_MPEG_VIDEO_HEVC_MAX_NUM_MERGE_MV_MINUS1: return "HEVC Max Num of Candidate MVs"; - case V4L2_CID_MPEG_VIDEO_HEVC_WITHOUT_STARTCODE: return "HEVC ENC Without Startcode"; - case V4L2_CID_MPEG_VIDEO_HEVC_REFRESH_PERIOD: return "HEVC Num of I-Frame b/w 2 IDR"; - case V4L2_CID_MPEG_VIDEO_HEVC_LF_BETA_OFFSET_DIV2: return "HEVC Loop Filter Beta Offset"; - case V4L2_CID_MPEG_VIDEO_HEVC_LF_TC_OFFSET_DIV2: return "HEVC Loop Filter TC Offset"; - case V4L2_CID_MPEG_VIDEO_HEVC_SIZE_OF_LENGTH_FIELD: return "HEVC Size of Length Field"; - case V4L2_CID_MPEG_VIDEO_REF_NUMBER_FOR_PFRAMES: return "Reference Frames for a P-Frame"; - case V4L2_CID_MPEG_VIDEO_PREPEND_SPSPPS_TO_IDR: return "Prepend SPS and PPS to IDR"; - case V4L2_CID_MPEG_VIDEO_HEVC_SPS: return "HEVC Sequence Parameter Set"; - case V4L2_CID_MPEG_VIDEO_HEVC_PPS: return "HEVC Picture Parameter Set"; - case V4L2_CID_MPEG_VIDEO_HEVC_SLICE_PARAMS: return "HEVC Slice Parameters"; - case V4L2_CID_MPEG_VIDEO_HEVC_SCALING_MATRIX: return "HEVC Scaling Matrix"; - case V4L2_CID_MPEG_VIDEO_HEVC_DECODE_MODE: return "HEVC Decode Mode"; - case V4L2_CID_MPEG_VIDEO_HEVC_START_CODE: return "HEVC Start Code"; - - /* CAMERA controls */ - /* Keep the order of the 'case's the same as in v4l2-controls.h! */ - case V4L2_CID_CAMERA_CLASS: return "Camera Controls"; - case V4L2_CID_EXPOSURE_AUTO: return "Auto Exposure"; - case V4L2_CID_EXPOSURE_ABSOLUTE: return "Exposure Time, Absolute"; - case V4L2_CID_EXPOSURE_AUTO_PRIORITY: return "Exposure, Dynamic Framerate"; - case V4L2_CID_PAN_RELATIVE: return "Pan, Relative"; - case V4L2_CID_TILT_RELATIVE: return "Tilt, Relative"; - case V4L2_CID_PAN_RESET: return "Pan, Reset"; - case V4L2_CID_TILT_RESET: return "Tilt, Reset"; - case V4L2_CID_PAN_ABSOLUTE: return "Pan, Absolute"; - case V4L2_CID_TILT_ABSOLUTE: return "Tilt, Absolute"; - case V4L2_CID_FOCUS_ABSOLUTE: return "Focus, Absolute"; - case V4L2_CID_FOCUS_RELATIVE: return "Focus, Relative"; - case V4L2_CID_FOCUS_AUTO: return "Focus, Automatic Continuous"; - case V4L2_CID_ZOOM_ABSOLUTE: return "Zoom, Absolute"; - case V4L2_CID_ZOOM_RELATIVE: return "Zoom, Relative"; - case V4L2_CID_ZOOM_CONTINUOUS: return "Zoom, Continuous"; - case V4L2_CID_PRIVACY: return "Privacy"; - case V4L2_CID_IRIS_ABSOLUTE: return "Iris, Absolute"; - case V4L2_CID_IRIS_RELATIVE: return "Iris, Relative"; - case V4L2_CID_AUTO_EXPOSURE_BIAS: return "Auto Exposure, Bias"; - case V4L2_CID_AUTO_N_PRESET_WHITE_BALANCE: return "White Balance, Auto & Preset"; - case V4L2_CID_WIDE_DYNAMIC_RANGE: return "Wide Dynamic Range"; - case V4L2_CID_IMAGE_STABILIZATION: return "Image Stabilization"; - case V4L2_CID_ISO_SENSITIVITY: return "ISO Sensitivity"; - case V4L2_CID_ISO_SENSITIVITY_AUTO: return "ISO Sensitivity, Auto"; - case V4L2_CID_EXPOSURE_METERING: return "Exposure, Metering Mode"; - case V4L2_CID_SCENE_MODE: return "Scene Mode"; - case V4L2_CID_3A_LOCK: return "3A Lock"; - case V4L2_CID_AUTO_FOCUS_START: return "Auto Focus, Start"; - case V4L2_CID_AUTO_FOCUS_STOP: return "Auto Focus, Stop"; - case V4L2_CID_AUTO_FOCUS_STATUS: return "Auto Focus, Status"; - case V4L2_CID_AUTO_FOCUS_RANGE: return "Auto Focus, Range"; - case V4L2_CID_PAN_SPEED: return "Pan, Speed"; - case V4L2_CID_TILT_SPEED: return "Tilt, Speed"; - case V4L2_CID_UNIT_CELL_SIZE: return "Unit Cell Size"; - case V4L2_CID_CAMERA_ORIENTATION: return "Camera Orientation"; - case V4L2_CID_CAMERA_SENSOR_ROTATION: return "Camera Sensor Rotation"; - - /* FM Radio Modulator controls */ - /* Keep the order of the 'case's the same as in v4l2-controls.h! */ - case V4L2_CID_FM_TX_CLASS: return "FM Radio Modulator Controls"; - case V4L2_CID_RDS_TX_DEVIATION: return "RDS Signal Deviation"; - case V4L2_CID_RDS_TX_PI: return "RDS Program ID"; - case V4L2_CID_RDS_TX_PTY: return "RDS Program Type"; - case V4L2_CID_RDS_TX_PS_NAME: return "RDS PS Name"; - case V4L2_CID_RDS_TX_RADIO_TEXT: return "RDS Radio Text"; - case V4L2_CID_RDS_TX_MONO_STEREO: return "RDS Stereo"; - case V4L2_CID_RDS_TX_ARTIFICIAL_HEAD: return "RDS Artificial Head"; - case V4L2_CID_RDS_TX_COMPRESSED: return "RDS Compressed"; - case V4L2_CID_RDS_TX_DYNAMIC_PTY: return "RDS Dynamic PTY"; - case V4L2_CID_RDS_TX_TRAFFIC_ANNOUNCEMENT: return "RDS Traffic Announcement"; - case V4L2_CID_RDS_TX_TRAFFIC_PROGRAM: return "RDS Traffic Program"; - case V4L2_CID_RDS_TX_MUSIC_SPEECH: return "RDS Music"; - case V4L2_CID_RDS_TX_ALT_FREQS_ENABLE: return "RDS Enable Alt Frequencies"; - case V4L2_CID_RDS_TX_ALT_FREQS: return "RDS Alternate Frequencies"; - case V4L2_CID_AUDIO_LIMITER_ENABLED: return "Audio Limiter Feature Enabled"; - case V4L2_CID_AUDIO_LIMITER_RELEASE_TIME: return "Audio Limiter Release Time"; - case V4L2_CID_AUDIO_LIMITER_DEVIATION: return "Audio Limiter Deviation"; - case V4L2_CID_AUDIO_COMPRESSION_ENABLED: return "Audio Compression Enabled"; - case V4L2_CID_AUDIO_COMPRESSION_GAIN: return "Audio Compression Gain"; - case V4L2_CID_AUDIO_COMPRESSION_THRESHOLD: return "Audio Compression Threshold"; - case V4L2_CID_AUDIO_COMPRESSION_ATTACK_TIME: return "Audio Compression Attack Time"; - case V4L2_CID_AUDIO_COMPRESSION_RELEASE_TIME: return "Audio Compression Release Time"; - case V4L2_CID_PILOT_TONE_ENABLED: return "Pilot Tone Feature Enabled"; - case V4L2_CID_PILOT_TONE_DEVIATION: return "Pilot Tone Deviation"; - case V4L2_CID_PILOT_TONE_FREQUENCY: return "Pilot Tone Frequency"; - case V4L2_CID_TUNE_PREEMPHASIS: return "Pre-Emphasis"; - case V4L2_CID_TUNE_POWER_LEVEL: return "Tune Power Level"; - case V4L2_CID_TUNE_ANTENNA_CAPACITOR: return "Tune Antenna Capacitor"; - - /* Flash controls */ - /* Keep the order of the 'case's the same as in v4l2-controls.h! */ - case V4L2_CID_FLASH_CLASS: return "Flash Controls"; - case V4L2_CID_FLASH_LED_MODE: return "LED Mode"; - case V4L2_CID_FLASH_STROBE_SOURCE: return "Strobe Source"; - case V4L2_CID_FLASH_STROBE: return "Strobe"; - case V4L2_CID_FLASH_STROBE_STOP: return "Stop Strobe"; - case V4L2_CID_FLASH_STROBE_STATUS: return "Strobe Status"; - case V4L2_CID_FLASH_TIMEOUT: return "Strobe Timeout"; - case V4L2_CID_FLASH_INTENSITY: return "Intensity, Flash Mode"; - case V4L2_CID_FLASH_TORCH_INTENSITY: return "Intensity, Torch Mode"; - case V4L2_CID_FLASH_INDICATOR_INTENSITY: return "Intensity, Indicator"; - case V4L2_CID_FLASH_FAULT: return "Faults"; - case V4L2_CID_FLASH_CHARGE: return "Charge"; - case V4L2_CID_FLASH_READY: return "Ready to Strobe"; - - /* JPEG encoder controls */ - /* Keep the order of the 'case's the same as in v4l2-controls.h! */ - case V4L2_CID_JPEG_CLASS: return "JPEG Compression Controls"; - case V4L2_CID_JPEG_CHROMA_SUBSAMPLING: return "Chroma Subsampling"; - case V4L2_CID_JPEG_RESTART_INTERVAL: return "Restart Interval"; - case V4L2_CID_JPEG_COMPRESSION_QUALITY: return "Compression Quality"; - case V4L2_CID_JPEG_ACTIVE_MARKER: return "Active Markers"; - - /* Image source controls */ - /* Keep the order of the 'case's the same as in v4l2-controls.h! */ - case V4L2_CID_IMAGE_SOURCE_CLASS: return "Image Source Controls"; - case V4L2_CID_VBLANK: return "Vertical Blanking"; - case V4L2_CID_HBLANK: return "Horizontal Blanking"; - case V4L2_CID_ANALOGUE_GAIN: return "Analogue Gain"; - case V4L2_CID_TEST_PATTERN_RED: return "Red Pixel Value"; - case V4L2_CID_TEST_PATTERN_GREENR: return "Green (Red) Pixel Value"; - case V4L2_CID_TEST_PATTERN_BLUE: return "Blue Pixel Value"; - case V4L2_CID_TEST_PATTERN_GREENB: return "Green (Blue) Pixel Value"; - - /* Image processing controls */ - /* Keep the order of the 'case's the same as in v4l2-controls.h! */ - case V4L2_CID_IMAGE_PROC_CLASS: return "Image Processing Controls"; - case V4L2_CID_LINK_FREQ: return "Link Frequency"; - case V4L2_CID_PIXEL_RATE: return "Pixel Rate"; - case V4L2_CID_TEST_PATTERN: return "Test Pattern"; - case V4L2_CID_DEINTERLACING_MODE: return "Deinterlacing Mode"; - case V4L2_CID_DIGITAL_GAIN: return "Digital Gain"; - - /* DV controls */ - /* Keep the order of the 'case's the same as in v4l2-controls.h! */ - case V4L2_CID_DV_CLASS: return "Digital Video Controls"; - case V4L2_CID_DV_TX_HOTPLUG: return "Hotplug Present"; - case V4L2_CID_DV_TX_RXSENSE: return "RxSense Present"; - case V4L2_CID_DV_TX_EDID_PRESENT: return "EDID Present"; - case V4L2_CID_DV_TX_MODE: return "Transmit Mode"; - case V4L2_CID_DV_TX_RGB_RANGE: return "Tx RGB Quantization Range"; - case V4L2_CID_DV_TX_IT_CONTENT_TYPE: return "Tx IT Content Type"; - case V4L2_CID_DV_RX_POWER_PRESENT: return "Power Present"; - case V4L2_CID_DV_RX_RGB_RANGE: return "Rx RGB Quantization Range"; - case V4L2_CID_DV_RX_IT_CONTENT_TYPE: return "Rx IT Content Type"; - - case V4L2_CID_FM_RX_CLASS: return "FM Radio Receiver Controls"; - case V4L2_CID_TUNE_DEEMPHASIS: return "De-Emphasis"; - case V4L2_CID_RDS_RECEPTION: return "RDS Reception"; - case V4L2_CID_RF_TUNER_CLASS: return "RF Tuner Controls"; - case V4L2_CID_RF_TUNER_RF_GAIN: return "RF Gain"; - case V4L2_CID_RF_TUNER_LNA_GAIN_AUTO: return "LNA Gain, Auto"; - case V4L2_CID_RF_TUNER_LNA_GAIN: return "LNA Gain"; - case V4L2_CID_RF_TUNER_MIXER_GAIN_AUTO: return "Mixer Gain, Auto"; - case V4L2_CID_RF_TUNER_MIXER_GAIN: return "Mixer Gain"; - case V4L2_CID_RF_TUNER_IF_GAIN_AUTO: return "IF Gain, Auto"; - case V4L2_CID_RF_TUNER_IF_GAIN: return "IF Gain"; - case V4L2_CID_RF_TUNER_BANDWIDTH_AUTO: return "Bandwidth, Auto"; - case V4L2_CID_RF_TUNER_BANDWIDTH: return "Bandwidth"; - case V4L2_CID_RF_TUNER_PLL_LOCK: return "PLL Lock"; - case V4L2_CID_RDS_RX_PTY: return "RDS Program Type"; - case V4L2_CID_RDS_RX_PS_NAME: return "RDS PS Name"; - case V4L2_CID_RDS_RX_RADIO_TEXT: return "RDS Radio Text"; - case V4L2_CID_RDS_RX_TRAFFIC_ANNOUNCEMENT: return "RDS Traffic Announcement"; - case V4L2_CID_RDS_RX_TRAFFIC_PROGRAM: return "RDS Traffic Program"; - case V4L2_CID_RDS_RX_MUSIC_SPEECH: return "RDS Music"; - - /* Detection controls */ - /* Keep the order of the 'case's the same as in v4l2-controls.h! */ - case V4L2_CID_DETECT_CLASS: return "Detection Controls"; - case V4L2_CID_DETECT_MD_MODE: return "Motion Detection Mode"; - case V4L2_CID_DETECT_MD_GLOBAL_THRESHOLD: return "MD Global Threshold"; - case V4L2_CID_DETECT_MD_THRESHOLD_GRID: return "MD Threshold Grid"; - case V4L2_CID_DETECT_MD_REGION_GRID: return "MD Region Grid"; - - /* Stateless Codec controls */ - /* Keep the order of the 'case's the same as in v4l2-controls.h! */ - case V4L2_CID_CODEC_STATELESS_CLASS: return "Stateless Codec Controls"; - case V4L2_CID_STATELESS_H264_DECODE_MODE: return "H264 Decode Mode"; - case V4L2_CID_STATELESS_H264_START_CODE: return "H264 Start Code"; - case V4L2_CID_STATELESS_H264_SPS: return "H264 Sequence Parameter Set"; - case V4L2_CID_STATELESS_H264_PPS: return "H264 Picture Parameter Set"; - case V4L2_CID_STATELESS_H264_SCALING_MATRIX: return "H264 Scaling Matrix"; - case V4L2_CID_STATELESS_H264_PRED_WEIGHTS: return "H264 Prediction Weight Table"; - case V4L2_CID_STATELESS_H264_SLICE_PARAMS: return "H264 Slice Parameters"; - case V4L2_CID_STATELESS_H264_DECODE_PARAMS: return "H264 Decode Parameters"; - case V4L2_CID_STATELESS_FWHT_PARAMS: return "FWHT Stateless Parameters"; - case V4L2_CID_STATELESS_VP8_FRAME: return "VP8 Frame Parameters"; - - /* Colorimetry controls */ - /* Keep the order of the 'case's the same as in v4l2-controls.h! */ - case V4L2_CID_COLORIMETRY_CLASS: return "Colorimetry Controls"; - case V4L2_CID_COLORIMETRY_HDR10_CLL_INFO: return "HDR10 Content Light Info"; - case V4L2_CID_COLORIMETRY_HDR10_MASTERING_DISPLAY: return "HDR10 Mastering Display"; - default: - return NULL; - } -} -EXPORT_SYMBOL(v4l2_ctrl_get_name); - -void v4l2_ctrl_fill(u32 id, const char **name, enum v4l2_ctrl_type *type, - s64 *min, s64 *max, u64 *step, s64 *def, u32 *flags) -{ - *name = v4l2_ctrl_get_name(id); - *flags = 0; - - switch (id) { - case V4L2_CID_AUDIO_MUTE: - case V4L2_CID_AUDIO_LOUDNESS: - case V4L2_CID_AUTO_WHITE_BALANCE: - case V4L2_CID_AUTOGAIN: - case V4L2_CID_HFLIP: - case V4L2_CID_VFLIP: - case V4L2_CID_HUE_AUTO: - case V4L2_CID_CHROMA_AGC: - case V4L2_CID_COLOR_KILLER: - case V4L2_CID_AUTOBRIGHTNESS: - case V4L2_CID_MPEG_AUDIO_MUTE: - case V4L2_CID_MPEG_VIDEO_MUTE: - case V4L2_CID_MPEG_VIDEO_GOP_CLOSURE: - case V4L2_CID_MPEG_VIDEO_PULLDOWN: - case V4L2_CID_EXPOSURE_AUTO_PRIORITY: - case V4L2_CID_FOCUS_AUTO: - case V4L2_CID_PRIVACY: - case V4L2_CID_AUDIO_LIMITER_ENABLED: - case V4L2_CID_AUDIO_COMPRESSION_ENABLED: - case V4L2_CID_PILOT_TONE_ENABLED: - case V4L2_CID_ILLUMINATORS_1: - case V4L2_CID_ILLUMINATORS_2: - case V4L2_CID_FLASH_STROBE_STATUS: - case V4L2_CID_FLASH_CHARGE: - case V4L2_CID_FLASH_READY: - case V4L2_CID_MPEG_VIDEO_DECODER_MPEG4_DEBLOCK_FILTER: - case V4L2_CID_MPEG_VIDEO_DECODER_SLICE_INTERFACE: - case V4L2_CID_MPEG_VIDEO_DEC_DISPLAY_DELAY_ENABLE: - case V4L2_CID_MPEG_VIDEO_FRAME_RC_ENABLE: - case V4L2_CID_MPEG_VIDEO_MB_RC_ENABLE: - case V4L2_CID_MPEG_VIDEO_H264_8X8_TRANSFORM: - case V4L2_CID_MPEG_VIDEO_H264_VUI_SAR_ENABLE: - case V4L2_CID_MPEG_VIDEO_MPEG4_QPEL: - case V4L2_CID_MPEG_VIDEO_REPEAT_SEQ_HEADER: - case V4L2_CID_MPEG_VIDEO_AU_DELIMITER: - case V4L2_CID_WIDE_DYNAMIC_RANGE: - case V4L2_CID_IMAGE_STABILIZATION: - case V4L2_CID_RDS_RECEPTION: - case V4L2_CID_RF_TUNER_LNA_GAIN_AUTO: - case V4L2_CID_RF_TUNER_MIXER_GAIN_AUTO: - case V4L2_CID_RF_TUNER_IF_GAIN_AUTO: - case V4L2_CID_RF_TUNER_BANDWIDTH_AUTO: - case V4L2_CID_RF_TUNER_PLL_LOCK: - case V4L2_CID_RDS_TX_MONO_STEREO: - case V4L2_CID_RDS_TX_ARTIFICIAL_HEAD: - case V4L2_CID_RDS_TX_COMPRESSED: - case V4L2_CID_RDS_TX_DYNAMIC_PTY: - case V4L2_CID_RDS_TX_TRAFFIC_ANNOUNCEMENT: - case V4L2_CID_RDS_TX_TRAFFIC_PROGRAM: - case V4L2_CID_RDS_TX_MUSIC_SPEECH: - case V4L2_CID_RDS_TX_ALT_FREQS_ENABLE: - case V4L2_CID_RDS_RX_TRAFFIC_ANNOUNCEMENT: - case V4L2_CID_RDS_RX_TRAFFIC_PROGRAM: - case V4L2_CID_RDS_RX_MUSIC_SPEECH: - *type = V4L2_CTRL_TYPE_BOOLEAN; - *min = 0; - *max = *step = 1; - break; - case V4L2_CID_ROTATE: - *type = V4L2_CTRL_TYPE_INTEGER; - *flags |= V4L2_CTRL_FLAG_MODIFY_LAYOUT; - break; - case V4L2_CID_MPEG_VIDEO_MV_H_SEARCH_RANGE: - case V4L2_CID_MPEG_VIDEO_MV_V_SEARCH_RANGE: - case V4L2_CID_MPEG_VIDEO_DEC_DISPLAY_DELAY: - *type = V4L2_CTRL_TYPE_INTEGER; - break; - case V4L2_CID_MPEG_VIDEO_LTR_COUNT: - *type = V4L2_CTRL_TYPE_INTEGER; - break; - case V4L2_CID_MPEG_VIDEO_FRAME_LTR_INDEX: - *type = V4L2_CTRL_TYPE_INTEGER; - *flags |= V4L2_CTRL_FLAG_EXECUTE_ON_WRITE; - break; - case V4L2_CID_MPEG_VIDEO_USE_LTR_FRAMES: - *type = V4L2_CTRL_TYPE_BITMASK; - *flags |= V4L2_CTRL_FLAG_EXECUTE_ON_WRITE; - break; - case V4L2_CID_MPEG_VIDEO_FORCE_KEY_FRAME: - case V4L2_CID_PAN_RESET: - case V4L2_CID_TILT_RESET: - case V4L2_CID_FLASH_STROBE: - case V4L2_CID_FLASH_STROBE_STOP: - case V4L2_CID_AUTO_FOCUS_START: - case V4L2_CID_AUTO_FOCUS_STOP: - case V4L2_CID_DO_WHITE_BALANCE: - *type = V4L2_CTRL_TYPE_BUTTON; - *flags |= V4L2_CTRL_FLAG_WRITE_ONLY | - V4L2_CTRL_FLAG_EXECUTE_ON_WRITE; - *min = *max = *step = *def = 0; - break; - case V4L2_CID_POWER_LINE_FREQUENCY: - case V4L2_CID_MPEG_AUDIO_SAMPLING_FREQ: - case V4L2_CID_MPEG_AUDIO_ENCODING: - case V4L2_CID_MPEG_AUDIO_L1_BITRATE: - case V4L2_CID_MPEG_AUDIO_L2_BITRATE: - case V4L2_CID_MPEG_AUDIO_L3_BITRATE: - case V4L2_CID_MPEG_AUDIO_AC3_BITRATE: - case V4L2_CID_MPEG_AUDIO_MODE: - case V4L2_CID_MPEG_AUDIO_MODE_EXTENSION: - case V4L2_CID_MPEG_AUDIO_EMPHASIS: - case V4L2_CID_MPEG_AUDIO_CRC: - case V4L2_CID_MPEG_AUDIO_DEC_PLAYBACK: - case V4L2_CID_MPEG_AUDIO_DEC_MULTILINGUAL_PLAYBACK: - case V4L2_CID_MPEG_VIDEO_ENCODING: - case V4L2_CID_MPEG_VIDEO_ASPECT: - case V4L2_CID_MPEG_VIDEO_BITRATE_MODE: - case V4L2_CID_MPEG_STREAM_TYPE: - case V4L2_CID_MPEG_STREAM_VBI_FMT: - case V4L2_CID_EXPOSURE_AUTO: - case V4L2_CID_AUTO_FOCUS_RANGE: - case V4L2_CID_COLORFX: - case V4L2_CID_AUTO_N_PRESET_WHITE_BALANCE: - case V4L2_CID_TUNE_PREEMPHASIS: - case V4L2_CID_FLASH_LED_MODE: - case V4L2_CID_FLASH_STROBE_SOURCE: - case V4L2_CID_MPEG_VIDEO_HEADER_MODE: - case V4L2_CID_MPEG_VIDEO_FRAME_SKIP_MODE: - case V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MODE: - case V4L2_CID_MPEG_VIDEO_H264_ENTROPY_MODE: - case V4L2_CID_MPEG_VIDEO_H264_LEVEL: - case V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_MODE: - case V4L2_CID_MPEG_VIDEO_H264_PROFILE: - case V4L2_CID_MPEG_VIDEO_H264_VUI_SAR_IDC: - case V4L2_CID_MPEG_VIDEO_H264_SEI_FP_ARRANGEMENT_TYPE: - case V4L2_CID_MPEG_VIDEO_H264_FMO_MAP_TYPE: - case V4L2_CID_MPEG_VIDEO_H264_HIERARCHICAL_CODING_TYPE: - case V4L2_CID_MPEG_VIDEO_MPEG2_LEVEL: - case V4L2_CID_MPEG_VIDEO_MPEG2_PROFILE: - case V4L2_CID_MPEG_VIDEO_MPEG4_LEVEL: - case V4L2_CID_MPEG_VIDEO_MPEG4_PROFILE: - case V4L2_CID_JPEG_CHROMA_SUBSAMPLING: - case V4L2_CID_ISO_SENSITIVITY_AUTO: - case V4L2_CID_EXPOSURE_METERING: - case V4L2_CID_SCENE_MODE: - case V4L2_CID_DV_TX_MODE: - case V4L2_CID_DV_TX_RGB_RANGE: - case V4L2_CID_DV_TX_IT_CONTENT_TYPE: - case V4L2_CID_DV_RX_RGB_RANGE: - case V4L2_CID_DV_RX_IT_CONTENT_TYPE: - case V4L2_CID_TEST_PATTERN: - case V4L2_CID_DEINTERLACING_MODE: - case V4L2_CID_TUNE_DEEMPHASIS: - case V4L2_CID_MPEG_VIDEO_VPX_GOLDEN_FRAME_SEL: - case V4L2_CID_MPEG_VIDEO_VP8_PROFILE: - case V4L2_CID_MPEG_VIDEO_VP9_PROFILE: - case V4L2_CID_MPEG_VIDEO_VP9_LEVEL: - case V4L2_CID_DETECT_MD_MODE: - case V4L2_CID_MPEG_VIDEO_HEVC_PROFILE: - case V4L2_CID_MPEG_VIDEO_HEVC_LEVEL: - case V4L2_CID_MPEG_VIDEO_HEVC_HIER_CODING_TYPE: - case V4L2_CID_MPEG_VIDEO_HEVC_REFRESH_TYPE: - case V4L2_CID_MPEG_VIDEO_HEVC_SIZE_OF_LENGTH_FIELD: - case V4L2_CID_MPEG_VIDEO_HEVC_TIER: - case V4L2_CID_MPEG_VIDEO_HEVC_LOOP_FILTER_MODE: - case V4L2_CID_MPEG_VIDEO_HEVC_DECODE_MODE: - case V4L2_CID_MPEG_VIDEO_HEVC_START_CODE: - case V4L2_CID_STATELESS_H264_DECODE_MODE: - case V4L2_CID_STATELESS_H264_START_CODE: - case V4L2_CID_CAMERA_ORIENTATION: - *type = V4L2_CTRL_TYPE_MENU; - break; - case V4L2_CID_LINK_FREQ: - *type = V4L2_CTRL_TYPE_INTEGER_MENU; - break; - case V4L2_CID_RDS_TX_PS_NAME: - case V4L2_CID_RDS_TX_RADIO_TEXT: - case V4L2_CID_RDS_RX_PS_NAME: - case V4L2_CID_RDS_RX_RADIO_TEXT: - *type = V4L2_CTRL_TYPE_STRING; - break; - case V4L2_CID_ISO_SENSITIVITY: - case V4L2_CID_AUTO_EXPOSURE_BIAS: - case V4L2_CID_MPEG_VIDEO_VPX_NUM_PARTITIONS: - case V4L2_CID_MPEG_VIDEO_VPX_NUM_REF_FRAMES: - *type = V4L2_CTRL_TYPE_INTEGER_MENU; - break; - case V4L2_CID_USER_CLASS: - case V4L2_CID_CAMERA_CLASS: - case V4L2_CID_CODEC_CLASS: - case V4L2_CID_FM_TX_CLASS: - case V4L2_CID_FLASH_CLASS: - case V4L2_CID_JPEG_CLASS: - case V4L2_CID_IMAGE_SOURCE_CLASS: - case V4L2_CID_IMAGE_PROC_CLASS: - case V4L2_CID_DV_CLASS: - case V4L2_CID_FM_RX_CLASS: - case V4L2_CID_RF_TUNER_CLASS: - case V4L2_CID_DETECT_CLASS: - case V4L2_CID_CODEC_STATELESS_CLASS: - case V4L2_CID_COLORIMETRY_CLASS: - *type = V4L2_CTRL_TYPE_CTRL_CLASS; - /* You can neither read nor write these */ - *flags |= V4L2_CTRL_FLAG_READ_ONLY | V4L2_CTRL_FLAG_WRITE_ONLY; - *min = *max = *step = *def = 0; - break; - case V4L2_CID_BG_COLOR: - *type = V4L2_CTRL_TYPE_INTEGER; - *step = 1; - *min = 0; - /* Max is calculated as RGB888 that is 2^24 */ - *max = 0xFFFFFF; - break; - case V4L2_CID_FLASH_FAULT: - case V4L2_CID_JPEG_ACTIVE_MARKER: - case V4L2_CID_3A_LOCK: - case V4L2_CID_AUTO_FOCUS_STATUS: - case V4L2_CID_DV_TX_HOTPLUG: - case V4L2_CID_DV_TX_RXSENSE: - case V4L2_CID_DV_TX_EDID_PRESENT: - case V4L2_CID_DV_RX_POWER_PRESENT: - *type = V4L2_CTRL_TYPE_BITMASK; - break; - case V4L2_CID_MIN_BUFFERS_FOR_CAPTURE: - case V4L2_CID_MIN_BUFFERS_FOR_OUTPUT: - *type = V4L2_CTRL_TYPE_INTEGER; - *flags |= V4L2_CTRL_FLAG_READ_ONLY; - break; - case V4L2_CID_MPEG_VIDEO_DEC_PTS: - *type = V4L2_CTRL_TYPE_INTEGER64; - *flags |= V4L2_CTRL_FLAG_VOLATILE | V4L2_CTRL_FLAG_READ_ONLY; - *min = *def = 0; - *max = 0x1ffffffffLL; - *step = 1; - break; - case V4L2_CID_MPEG_VIDEO_DEC_FRAME: - *type = V4L2_CTRL_TYPE_INTEGER64; - *flags |= V4L2_CTRL_FLAG_VOLATILE | V4L2_CTRL_FLAG_READ_ONLY; - *min = *def = 0; - *max = 0x7fffffffffffffffLL; - *step = 1; - break; - case V4L2_CID_MPEG_VIDEO_DEC_CONCEAL_COLOR: - *type = V4L2_CTRL_TYPE_INTEGER64; - *min = 0; - /* default for 8 bit black, luma is 16, chroma is 128 */ - *def = 0x8000800010LL; - *max = 0xffffffffffffLL; - *step = 1; - break; - case V4L2_CID_PIXEL_RATE: - *type = V4L2_CTRL_TYPE_INTEGER64; - *flags |= V4L2_CTRL_FLAG_READ_ONLY; - break; - case V4L2_CID_DETECT_MD_REGION_GRID: - *type = V4L2_CTRL_TYPE_U8; - break; - case V4L2_CID_DETECT_MD_THRESHOLD_GRID: - *type = V4L2_CTRL_TYPE_U16; - break; - case V4L2_CID_RDS_TX_ALT_FREQS: - *type = V4L2_CTRL_TYPE_U32; - break; - case V4L2_CID_MPEG_VIDEO_MPEG2_SLICE_PARAMS: - *type = V4L2_CTRL_TYPE_MPEG2_SLICE_PARAMS; - break; - case V4L2_CID_MPEG_VIDEO_MPEG2_QUANTIZATION: - *type = V4L2_CTRL_TYPE_MPEG2_QUANTIZATION; - break; - case V4L2_CID_STATELESS_FWHT_PARAMS: - *type = V4L2_CTRL_TYPE_FWHT_PARAMS; - break; - case V4L2_CID_STATELESS_H264_SPS: - *type = V4L2_CTRL_TYPE_H264_SPS; - break; - case V4L2_CID_STATELESS_H264_PPS: - *type = V4L2_CTRL_TYPE_H264_PPS; - break; - case V4L2_CID_STATELESS_H264_SCALING_MATRIX: - *type = V4L2_CTRL_TYPE_H264_SCALING_MATRIX; - break; - case V4L2_CID_STATELESS_H264_SLICE_PARAMS: - *type = V4L2_CTRL_TYPE_H264_SLICE_PARAMS; - break; - case V4L2_CID_STATELESS_H264_DECODE_PARAMS: - *type = V4L2_CTRL_TYPE_H264_DECODE_PARAMS; - break; - case V4L2_CID_STATELESS_H264_PRED_WEIGHTS: - *type = V4L2_CTRL_TYPE_H264_PRED_WEIGHTS; - break; - case V4L2_CID_STATELESS_VP8_FRAME: - *type = V4L2_CTRL_TYPE_VP8_FRAME; - break; - case V4L2_CID_MPEG_VIDEO_HEVC_SPS: - *type = V4L2_CTRL_TYPE_HEVC_SPS; - break; - case V4L2_CID_MPEG_VIDEO_HEVC_PPS: - *type = V4L2_CTRL_TYPE_HEVC_PPS; - break; - case V4L2_CID_MPEG_VIDEO_HEVC_SLICE_PARAMS: - *type = V4L2_CTRL_TYPE_HEVC_SLICE_PARAMS; - break; - case V4L2_CID_MPEG_VIDEO_HEVC_SCALING_MATRIX: - *type = V4L2_CTRL_TYPE_HEVC_SCALING_MATRIX; - break; - case V4L2_CID_UNIT_CELL_SIZE: - *type = V4L2_CTRL_TYPE_AREA; - *flags |= V4L2_CTRL_FLAG_READ_ONLY; - break; - case V4L2_CID_COLORIMETRY_HDR10_CLL_INFO: - *type = V4L2_CTRL_TYPE_HDR10_CLL_INFO; - break; - case V4L2_CID_COLORIMETRY_HDR10_MASTERING_DISPLAY: - *type = V4L2_CTRL_TYPE_HDR10_MASTERING_DISPLAY; - break; - default: - *type = V4L2_CTRL_TYPE_INTEGER; - break; - } - switch (id) { - case V4L2_CID_MPEG_AUDIO_ENCODING: - case V4L2_CID_MPEG_AUDIO_MODE: - case V4L2_CID_MPEG_VIDEO_BITRATE_MODE: - case V4L2_CID_MPEG_VIDEO_B_FRAMES: - case V4L2_CID_MPEG_STREAM_TYPE: - *flags |= V4L2_CTRL_FLAG_UPDATE; - break; - case V4L2_CID_AUDIO_VOLUME: - case V4L2_CID_AUDIO_BALANCE: - case V4L2_CID_AUDIO_BASS: - case V4L2_CID_AUDIO_TREBLE: - case V4L2_CID_BRIGHTNESS: - case V4L2_CID_CONTRAST: - case V4L2_CID_SATURATION: - case V4L2_CID_HUE: - case V4L2_CID_RED_BALANCE: - case V4L2_CID_BLUE_BALANCE: - case V4L2_CID_GAMMA: - case V4L2_CID_SHARPNESS: - case V4L2_CID_CHROMA_GAIN: - case V4L2_CID_RDS_TX_DEVIATION: - case V4L2_CID_AUDIO_LIMITER_RELEASE_TIME: - case V4L2_CID_AUDIO_LIMITER_DEVIATION: - case V4L2_CID_AUDIO_COMPRESSION_GAIN: - case V4L2_CID_AUDIO_COMPRESSION_THRESHOLD: - case V4L2_CID_AUDIO_COMPRESSION_ATTACK_TIME: - case V4L2_CID_AUDIO_COMPRESSION_RELEASE_TIME: - case V4L2_CID_PILOT_TONE_DEVIATION: - case V4L2_CID_PILOT_TONE_FREQUENCY: - case V4L2_CID_TUNE_POWER_LEVEL: - case V4L2_CID_TUNE_ANTENNA_CAPACITOR: - case V4L2_CID_RF_TUNER_RF_GAIN: - case V4L2_CID_RF_TUNER_LNA_GAIN: - case V4L2_CID_RF_TUNER_MIXER_GAIN: - case V4L2_CID_RF_TUNER_IF_GAIN: - case V4L2_CID_RF_TUNER_BANDWIDTH: - case V4L2_CID_DETECT_MD_GLOBAL_THRESHOLD: - *flags |= V4L2_CTRL_FLAG_SLIDER; - break; - case V4L2_CID_PAN_RELATIVE: - case V4L2_CID_TILT_RELATIVE: - case V4L2_CID_FOCUS_RELATIVE: - case V4L2_CID_IRIS_RELATIVE: - case V4L2_CID_ZOOM_RELATIVE: - *flags |= V4L2_CTRL_FLAG_WRITE_ONLY | - V4L2_CTRL_FLAG_EXECUTE_ON_WRITE; - break; - case V4L2_CID_FLASH_STROBE_STATUS: - case V4L2_CID_AUTO_FOCUS_STATUS: - case V4L2_CID_FLASH_READY: - case V4L2_CID_DV_TX_HOTPLUG: - case V4L2_CID_DV_TX_RXSENSE: - case V4L2_CID_DV_TX_EDID_PRESENT: - case V4L2_CID_DV_RX_POWER_PRESENT: - case V4L2_CID_DV_RX_IT_CONTENT_TYPE: - case V4L2_CID_RDS_RX_PTY: - case V4L2_CID_RDS_RX_PS_NAME: - case V4L2_CID_RDS_RX_RADIO_TEXT: - case V4L2_CID_RDS_RX_TRAFFIC_ANNOUNCEMENT: - case V4L2_CID_RDS_RX_TRAFFIC_PROGRAM: - case V4L2_CID_RDS_RX_MUSIC_SPEECH: - case V4L2_CID_CAMERA_ORIENTATION: - case V4L2_CID_CAMERA_SENSOR_ROTATION: - *flags |= V4L2_CTRL_FLAG_READ_ONLY; - break; - case V4L2_CID_RF_TUNER_PLL_LOCK: - *flags |= V4L2_CTRL_FLAG_VOLATILE; - break; - } -} -EXPORT_SYMBOL(v4l2_ctrl_fill); - -static u32 user_flags(const struct v4l2_ctrl *ctrl) -{ - u32 flags = ctrl->flags; - - if (ctrl->is_ptr) - flags |= V4L2_CTRL_FLAG_HAS_PAYLOAD; - - return flags; -} - -static void fill_event(struct v4l2_event *ev, struct v4l2_ctrl *ctrl, u32 changes) -{ - memset(ev, 0, sizeof(*ev)); - ev->type = V4L2_EVENT_CTRL; - ev->id = ctrl->id; - ev->u.ctrl.changes = changes; - ev->u.ctrl.type = ctrl->type; - ev->u.ctrl.flags = user_flags(ctrl); - if (ctrl->is_ptr) - ev->u.ctrl.value64 = 0; - else - ev->u.ctrl.value64 = *ctrl->p_cur.p_s64; - ev->u.ctrl.minimum = ctrl->minimum; - ev->u.ctrl.maximum = ctrl->maximum; - if (ctrl->type == V4L2_CTRL_TYPE_MENU - || ctrl->type == V4L2_CTRL_TYPE_INTEGER_MENU) - ev->u.ctrl.step = 1; - else - ev->u.ctrl.step = ctrl->step; - ev->u.ctrl.default_value = ctrl->default_value; -} - -static void send_event(struct v4l2_fh *fh, struct v4l2_ctrl *ctrl, u32 changes) -{ - struct v4l2_event ev; - struct v4l2_subscribed_event *sev; - - if (list_empty(&ctrl->ev_subs)) - return; - fill_event(&ev, ctrl, changes); - - list_for_each_entry(sev, &ctrl->ev_subs, node) - if (sev->fh != fh || - (sev->flags & V4L2_EVENT_SUB_FL_ALLOW_FEEDBACK)) - v4l2_event_queue_fh(sev->fh, &ev); -} - -static bool std_equal(const struct v4l2_ctrl *ctrl, u32 idx, - union v4l2_ctrl_ptr ptr1, - union v4l2_ctrl_ptr ptr2) -{ - switch (ctrl->type) { - case V4L2_CTRL_TYPE_BUTTON: - return false; - case V4L2_CTRL_TYPE_STRING: - idx *= ctrl->elem_size; - /* strings are always 0-terminated */ - return !strcmp(ptr1.p_char + idx, ptr2.p_char + idx); - case V4L2_CTRL_TYPE_INTEGER64: - return ptr1.p_s64[idx] == ptr2.p_s64[idx]; - case V4L2_CTRL_TYPE_U8: - return ptr1.p_u8[idx] == ptr2.p_u8[idx]; - case V4L2_CTRL_TYPE_U16: - return ptr1.p_u16[idx] == ptr2.p_u16[idx]; - case V4L2_CTRL_TYPE_U32: - return ptr1.p_u32[idx] == ptr2.p_u32[idx]; - default: - if (ctrl->is_int) - return ptr1.p_s32[idx] == ptr2.p_s32[idx]; - idx *= ctrl->elem_size; - return !memcmp(ptr1.p_const + idx, ptr2.p_const + idx, - ctrl->elem_size); - } -} - -static void std_init_compound(const struct v4l2_ctrl *ctrl, u32 idx, - union v4l2_ctrl_ptr ptr) -{ - struct v4l2_ctrl_mpeg2_slice_params *p_mpeg2_slice_params; - struct v4l2_ctrl_vp8_frame *p_vp8_frame; - struct v4l2_ctrl_fwht_params *p_fwht_params; - void *p = ptr.p + idx * ctrl->elem_size; - - if (ctrl->p_def.p_const) - memcpy(p, ctrl->p_def.p_const, ctrl->elem_size); - else - memset(p, 0, ctrl->elem_size); - - /* - * The cast is needed to get rid of a gcc warning complaining that - * V4L2_CTRL_TYPE_MPEG2_SLICE_PARAMS is not part of the - * v4l2_ctrl_type enum. - */ - switch ((u32)ctrl->type) { - case V4L2_CTRL_TYPE_MPEG2_SLICE_PARAMS: - p_mpeg2_slice_params = p; - /* 4:2:0 */ - p_mpeg2_slice_params->sequence.chroma_format = 1; - /* interlaced top field */ - p_mpeg2_slice_params->picture.picture_structure = 1; - p_mpeg2_slice_params->picture.picture_coding_type = - V4L2_MPEG2_PICTURE_CODING_TYPE_I; - break; - case V4L2_CTRL_TYPE_VP8_FRAME: - p_vp8_frame = p; - p_vp8_frame->num_dct_parts = 1; - break; - case V4L2_CTRL_TYPE_FWHT_PARAMS: - p_fwht_params = p; - p_fwht_params->version = V4L2_FWHT_VERSION; - p_fwht_params->width = 1280; - p_fwht_params->height = 720; - p_fwht_params->flags = V4L2_FWHT_FL_PIXENC_YUV | - (2 << V4L2_FWHT_FL_COMPONENTS_NUM_OFFSET); - break; - } -} - -static void std_init(const struct v4l2_ctrl *ctrl, u32 idx, - union v4l2_ctrl_ptr ptr) -{ - switch (ctrl->type) { - case V4L2_CTRL_TYPE_STRING: - idx *= ctrl->elem_size; - memset(ptr.p_char + idx, ' ', ctrl->minimum); - ptr.p_char[idx + ctrl->minimum] = '\0'; - break; - case V4L2_CTRL_TYPE_INTEGER64: - ptr.p_s64[idx] = ctrl->default_value; - break; - case V4L2_CTRL_TYPE_INTEGER: - case V4L2_CTRL_TYPE_INTEGER_MENU: - case V4L2_CTRL_TYPE_MENU: - case V4L2_CTRL_TYPE_BITMASK: - case V4L2_CTRL_TYPE_BOOLEAN: - ptr.p_s32[idx] = ctrl->default_value; - break; - case V4L2_CTRL_TYPE_BUTTON: - case V4L2_CTRL_TYPE_CTRL_CLASS: - ptr.p_s32[idx] = 0; - break; - case V4L2_CTRL_TYPE_U8: - ptr.p_u8[idx] = ctrl->default_value; - break; - case V4L2_CTRL_TYPE_U16: - ptr.p_u16[idx] = ctrl->default_value; - break; - case V4L2_CTRL_TYPE_U32: - ptr.p_u32[idx] = ctrl->default_value; - break; - default: - std_init_compound(ctrl, idx, ptr); - break; - } -} - -static void std_log(const struct v4l2_ctrl *ctrl) -{ - union v4l2_ctrl_ptr ptr = ctrl->p_cur; - - if (ctrl->is_array) { - unsigned i; - - for (i = 0; i < ctrl->nr_of_dims; i++) - pr_cont("[%u]", ctrl->dims[i]); - pr_cont(" "); - } - - switch (ctrl->type) { - case V4L2_CTRL_TYPE_INTEGER: - pr_cont("%d", *ptr.p_s32); - break; - case V4L2_CTRL_TYPE_BOOLEAN: - pr_cont("%s", *ptr.p_s32 ? "true" : "false"); - break; - case V4L2_CTRL_TYPE_MENU: - pr_cont("%s", ctrl->qmenu[*ptr.p_s32]); - break; - case V4L2_CTRL_TYPE_INTEGER_MENU: - pr_cont("%lld", ctrl->qmenu_int[*ptr.p_s32]); - break; - case V4L2_CTRL_TYPE_BITMASK: - pr_cont("0x%08x", *ptr.p_s32); - break; - case V4L2_CTRL_TYPE_INTEGER64: - pr_cont("%lld", *ptr.p_s64); - break; - case V4L2_CTRL_TYPE_STRING: - pr_cont("%s", ptr.p_char); - break; - case V4L2_CTRL_TYPE_U8: - pr_cont("%u", (unsigned)*ptr.p_u8); - break; - case V4L2_CTRL_TYPE_U16: - pr_cont("%u", (unsigned)*ptr.p_u16); - break; - case V4L2_CTRL_TYPE_U32: - pr_cont("%u", (unsigned)*ptr.p_u32); - break; - case V4L2_CTRL_TYPE_H264_SPS: - pr_cont("H264_SPS"); - break; - case V4L2_CTRL_TYPE_H264_PPS: - pr_cont("H264_PPS"); - break; - case V4L2_CTRL_TYPE_H264_SCALING_MATRIX: - pr_cont("H264_SCALING_MATRIX"); - break; - case V4L2_CTRL_TYPE_H264_SLICE_PARAMS: - pr_cont("H264_SLICE_PARAMS"); - break; - case V4L2_CTRL_TYPE_H264_DECODE_PARAMS: - pr_cont("H264_DECODE_PARAMS"); - break; - case V4L2_CTRL_TYPE_H264_PRED_WEIGHTS: - pr_cont("H264_PRED_WEIGHTS"); - break; - case V4L2_CTRL_TYPE_FWHT_PARAMS: - pr_cont("FWHT_PARAMS"); - break; - case V4L2_CTRL_TYPE_VP8_FRAME: - pr_cont("VP8_FRAME"); - break; - case V4L2_CTRL_TYPE_HDR10_CLL_INFO: - pr_cont("HDR10_CLL_INFO"); - break; - case V4L2_CTRL_TYPE_HDR10_MASTERING_DISPLAY: - pr_cont("HDR10_MASTERING_DISPLAY"); - break; - default: - pr_cont("unknown type %d", ctrl->type); - break; - } -} - -/* - * Round towards the closest legal value. Be careful when we are - * close to the maximum range of the control type to prevent - * wrap-arounds. - */ -#define ROUND_TO_RANGE(val, offset_type, ctrl) \ -({ \ - offset_type offset; \ - if ((ctrl)->maximum >= 0 && \ - val >= (ctrl)->maximum - (s32)((ctrl)->step / 2)) \ - val = (ctrl)->maximum; \ - else \ - val += (s32)((ctrl)->step / 2); \ - val = clamp_t(typeof(val), val, \ - (ctrl)->minimum, (ctrl)->maximum); \ - offset = (val) - (ctrl)->minimum; \ - offset = (ctrl)->step * (offset / (u32)(ctrl)->step); \ - val = (ctrl)->minimum + offset; \ - 0; \ -}) - -/* Validate a new control */ - -#define zero_padding(s) \ - memset(&(s).padding, 0, sizeof((s).padding)) -#define zero_reserved(s) \ - memset(&(s).reserved, 0, sizeof((s).reserved)) - -/* - * Compound controls validation requires setting unused fields/flags to zero - * in order to properly detect unchanged controls with std_equal's memcmp. - */ -static int std_validate_compound(const struct v4l2_ctrl *ctrl, u32 idx, - union v4l2_ctrl_ptr ptr) -{ - struct v4l2_ctrl_mpeg2_slice_params *p_mpeg2_slice_params; - struct v4l2_ctrl_vp8_frame *p_vp8_frame; - struct v4l2_ctrl_fwht_params *p_fwht_params; - struct v4l2_ctrl_h264_sps *p_h264_sps; - struct v4l2_ctrl_h264_pps *p_h264_pps; - struct v4l2_ctrl_h264_pred_weights *p_h264_pred_weights; - struct v4l2_ctrl_h264_slice_params *p_h264_slice_params; - struct v4l2_ctrl_h264_decode_params *p_h264_dec_params; - struct v4l2_ctrl_hevc_sps *p_hevc_sps; - struct v4l2_ctrl_hevc_pps *p_hevc_pps; - struct v4l2_ctrl_hevc_slice_params *p_hevc_slice_params; - struct v4l2_ctrl_hdr10_mastering_display *p_hdr10_mastering; - struct v4l2_area *area; - void *p = ptr.p + idx * ctrl->elem_size; - unsigned int i; - - switch ((u32)ctrl->type) { - case V4L2_CTRL_TYPE_MPEG2_SLICE_PARAMS: - p_mpeg2_slice_params = p; - - switch (p_mpeg2_slice_params->sequence.chroma_format) { - case 1: /* 4:2:0 */ - case 2: /* 4:2:2 */ - case 3: /* 4:4:4 */ - break; - default: - return -EINVAL; - } - - switch (p_mpeg2_slice_params->picture.intra_dc_precision) { - case 0: /* 8 bits */ - case 1: /* 9 bits */ - case 2: /* 10 bits */ - case 3: /* 11 bits */ - break; - default: - return -EINVAL; - } - - switch (p_mpeg2_slice_params->picture.picture_structure) { - case 1: /* interlaced top field */ - case 2: /* interlaced bottom field */ - case 3: /* progressive */ - break; - default: - return -EINVAL; - } - - switch (p_mpeg2_slice_params->picture.picture_coding_type) { - case V4L2_MPEG2_PICTURE_CODING_TYPE_I: - case V4L2_MPEG2_PICTURE_CODING_TYPE_P: - case V4L2_MPEG2_PICTURE_CODING_TYPE_B: - break; - default: - return -EINVAL; - } - - break; - - case V4L2_CTRL_TYPE_MPEG2_QUANTIZATION: - break; - - case V4L2_CTRL_TYPE_FWHT_PARAMS: - p_fwht_params = p; - if (p_fwht_params->version < V4L2_FWHT_VERSION) - return -EINVAL; - if (!p_fwht_params->width || !p_fwht_params->height) - return -EINVAL; - break; - - case V4L2_CTRL_TYPE_H264_SPS: - p_h264_sps = p; - - /* Some syntax elements are only conditionally valid */ - if (p_h264_sps->pic_order_cnt_type != 0) { - p_h264_sps->log2_max_pic_order_cnt_lsb_minus4 = 0; - } else if (p_h264_sps->pic_order_cnt_type != 1) { - p_h264_sps->num_ref_frames_in_pic_order_cnt_cycle = 0; - p_h264_sps->offset_for_non_ref_pic = 0; - p_h264_sps->offset_for_top_to_bottom_field = 0; - memset(&p_h264_sps->offset_for_ref_frame, 0, - sizeof(p_h264_sps->offset_for_ref_frame)); - } - - if (!V4L2_H264_SPS_HAS_CHROMA_FORMAT(p_h264_sps)) { - p_h264_sps->chroma_format_idc = 1; - p_h264_sps->bit_depth_luma_minus8 = 0; - p_h264_sps->bit_depth_chroma_minus8 = 0; - - p_h264_sps->flags &= - ~V4L2_H264_SPS_FLAG_QPPRIME_Y_ZERO_TRANSFORM_BYPASS; - - if (p_h264_sps->chroma_format_idc < 3) - p_h264_sps->flags &= - ~V4L2_H264_SPS_FLAG_SEPARATE_COLOUR_PLANE; - } - - if (p_h264_sps->flags & V4L2_H264_SPS_FLAG_FRAME_MBS_ONLY) - p_h264_sps->flags &= - ~V4L2_H264_SPS_FLAG_MB_ADAPTIVE_FRAME_FIELD; - - /* - * Chroma 4:2:2 format require at least High 4:2:2 profile. - * - * The H264 specification and well-known parser implementations - * use profile-idc values directly, as that is clearer and - * less ambiguous. We do the same here. - */ - if (p_h264_sps->profile_idc < 122 && - p_h264_sps->chroma_format_idc > 1) - return -EINVAL; - /* Chroma 4:4:4 format require at least High 4:2:2 profile */ - if (p_h264_sps->profile_idc < 244 && - p_h264_sps->chroma_format_idc > 2) - return -EINVAL; - if (p_h264_sps->chroma_format_idc > 3) - return -EINVAL; - - if (p_h264_sps->bit_depth_luma_minus8 > 6) - return -EINVAL; - if (p_h264_sps->bit_depth_chroma_minus8 > 6) - return -EINVAL; - if (p_h264_sps->log2_max_frame_num_minus4 > 12) - return -EINVAL; - if (p_h264_sps->pic_order_cnt_type > 2) - return -EINVAL; - if (p_h264_sps->log2_max_pic_order_cnt_lsb_minus4 > 12) - return -EINVAL; - if (p_h264_sps->max_num_ref_frames > V4L2_H264_REF_LIST_LEN) - return -EINVAL; - break; - - case V4L2_CTRL_TYPE_H264_PPS: - p_h264_pps = p; - - if (p_h264_pps->num_slice_groups_minus1 > 7) - return -EINVAL; - if (p_h264_pps->num_ref_idx_l0_default_active_minus1 > - (V4L2_H264_REF_LIST_LEN - 1)) - return -EINVAL; - if (p_h264_pps->num_ref_idx_l1_default_active_minus1 > - (V4L2_H264_REF_LIST_LEN - 1)) - return -EINVAL; - if (p_h264_pps->weighted_bipred_idc > 2) - return -EINVAL; - /* - * pic_init_qp_minus26 shall be in the range of - * -(26 + QpBdOffset_y) to +25, inclusive, - * where QpBdOffset_y is 6 * bit_depth_luma_minus8 - */ - if (p_h264_pps->pic_init_qp_minus26 < -62 || - p_h264_pps->pic_init_qp_minus26 > 25) - return -EINVAL; - if (p_h264_pps->pic_init_qs_minus26 < -26 || - p_h264_pps->pic_init_qs_minus26 > 25) - return -EINVAL; - if (p_h264_pps->chroma_qp_index_offset < -12 || - p_h264_pps->chroma_qp_index_offset > 12) - return -EINVAL; - if (p_h264_pps->second_chroma_qp_index_offset < -12 || - p_h264_pps->second_chroma_qp_index_offset > 12) - return -EINVAL; - break; - - case V4L2_CTRL_TYPE_H264_SCALING_MATRIX: - break; - - case V4L2_CTRL_TYPE_H264_PRED_WEIGHTS: - p_h264_pred_weights = p; - - if (p_h264_pred_weights->luma_log2_weight_denom > 7) - return -EINVAL; - if (p_h264_pred_weights->chroma_log2_weight_denom > 7) - return -EINVAL; - break; - - case V4L2_CTRL_TYPE_H264_SLICE_PARAMS: - p_h264_slice_params = p; - - if (p_h264_slice_params->slice_type != V4L2_H264_SLICE_TYPE_B) - p_h264_slice_params->flags &= - ~V4L2_H264_SLICE_FLAG_DIRECT_SPATIAL_MV_PRED; - - if (p_h264_slice_params->colour_plane_id > 2) - return -EINVAL; - if (p_h264_slice_params->cabac_init_idc > 2) - return -EINVAL; - if (p_h264_slice_params->disable_deblocking_filter_idc > 2) - return -EINVAL; - if (p_h264_slice_params->slice_alpha_c0_offset_div2 < -6 || - p_h264_slice_params->slice_alpha_c0_offset_div2 > 6) - return -EINVAL; - if (p_h264_slice_params->slice_beta_offset_div2 < -6 || - p_h264_slice_params->slice_beta_offset_div2 > 6) - return -EINVAL; - - if (p_h264_slice_params->slice_type == V4L2_H264_SLICE_TYPE_I || - p_h264_slice_params->slice_type == V4L2_H264_SLICE_TYPE_SI) - p_h264_slice_params->num_ref_idx_l0_active_minus1 = 0; - if (p_h264_slice_params->slice_type != V4L2_H264_SLICE_TYPE_B) - p_h264_slice_params->num_ref_idx_l1_active_minus1 = 0; - - if (p_h264_slice_params->num_ref_idx_l0_active_minus1 > - (V4L2_H264_REF_LIST_LEN - 1)) - return -EINVAL; - if (p_h264_slice_params->num_ref_idx_l1_active_minus1 > - (V4L2_H264_REF_LIST_LEN - 1)) - return -EINVAL; - zero_reserved(*p_h264_slice_params); - break; - - case V4L2_CTRL_TYPE_H264_DECODE_PARAMS: - p_h264_dec_params = p; - - if (p_h264_dec_params->nal_ref_idc > 3) - return -EINVAL; - for (i = 0; i < V4L2_H264_NUM_DPB_ENTRIES; i++) { - struct v4l2_h264_dpb_entry *dpb_entry = - &p_h264_dec_params->dpb[i]; - - zero_reserved(*dpb_entry); - } - zero_reserved(*p_h264_dec_params); - break; - - case V4L2_CTRL_TYPE_VP8_FRAME: - p_vp8_frame = p; - - switch (p_vp8_frame->num_dct_parts) { - case 1: - case 2: - case 4: - case 8: - break; - default: - return -EINVAL; - } - zero_padding(p_vp8_frame->segment); - zero_padding(p_vp8_frame->lf); - zero_padding(p_vp8_frame->quant); - zero_padding(p_vp8_frame->entropy); - zero_padding(p_vp8_frame->coder_state); - break; - - case V4L2_CTRL_TYPE_HEVC_SPS: - p_hevc_sps = p; - - if (!(p_hevc_sps->flags & V4L2_HEVC_SPS_FLAG_PCM_ENABLED)) { - p_hevc_sps->pcm_sample_bit_depth_luma_minus1 = 0; - p_hevc_sps->pcm_sample_bit_depth_chroma_minus1 = 0; - p_hevc_sps->log2_min_pcm_luma_coding_block_size_minus3 = 0; - p_hevc_sps->log2_diff_max_min_pcm_luma_coding_block_size = 0; - } - - if (!(p_hevc_sps->flags & - V4L2_HEVC_SPS_FLAG_LONG_TERM_REF_PICS_PRESENT)) - p_hevc_sps->num_long_term_ref_pics_sps = 0; - break; - - case V4L2_CTRL_TYPE_HEVC_PPS: - p_hevc_pps = p; - - if (!(p_hevc_pps->flags & - V4L2_HEVC_PPS_FLAG_CU_QP_DELTA_ENABLED)) - p_hevc_pps->diff_cu_qp_delta_depth = 0; - - if (!(p_hevc_pps->flags & V4L2_HEVC_PPS_FLAG_TILES_ENABLED)) { - p_hevc_pps->num_tile_columns_minus1 = 0; - p_hevc_pps->num_tile_rows_minus1 = 0; - memset(&p_hevc_pps->column_width_minus1, 0, - sizeof(p_hevc_pps->column_width_minus1)); - memset(&p_hevc_pps->row_height_minus1, 0, - sizeof(p_hevc_pps->row_height_minus1)); - - p_hevc_pps->flags &= - ~V4L2_HEVC_PPS_FLAG_LOOP_FILTER_ACROSS_TILES_ENABLED; - } - - if (p_hevc_pps->flags & - V4L2_HEVC_PPS_FLAG_PPS_DISABLE_DEBLOCKING_FILTER) { - p_hevc_pps->pps_beta_offset_div2 = 0; - p_hevc_pps->pps_tc_offset_div2 = 0; - } - - zero_padding(*p_hevc_pps); - break; - - case V4L2_CTRL_TYPE_HEVC_SLICE_PARAMS: - p_hevc_slice_params = p; - - if (p_hevc_slice_params->num_active_dpb_entries > - V4L2_HEVC_DPB_ENTRIES_NUM_MAX) - return -EINVAL; - - zero_padding(p_hevc_slice_params->pred_weight_table); - - for (i = 0; i < p_hevc_slice_params->num_active_dpb_entries; - i++) { - struct v4l2_hevc_dpb_entry *dpb_entry = - &p_hevc_slice_params->dpb[i]; - - zero_padding(*dpb_entry); - } - - zero_padding(*p_hevc_slice_params); - break; - - case V4L2_CTRL_TYPE_HDR10_CLL_INFO: - break; - - case V4L2_CTRL_TYPE_HDR10_MASTERING_DISPLAY: - p_hdr10_mastering = p; - - for (i = 0; i < 3; ++i) { - if (p_hdr10_mastering->display_primaries_x[i] < - V4L2_HDR10_MASTERING_PRIMARIES_X_LOW || - p_hdr10_mastering->display_primaries_x[i] > - V4L2_HDR10_MASTERING_PRIMARIES_X_HIGH || - p_hdr10_mastering->display_primaries_y[i] < - V4L2_HDR10_MASTERING_PRIMARIES_Y_LOW || - p_hdr10_mastering->display_primaries_y[i] > - V4L2_HDR10_MASTERING_PRIMARIES_Y_HIGH) - return -EINVAL; - } - - if (p_hdr10_mastering->white_point_x < - V4L2_HDR10_MASTERING_WHITE_POINT_X_LOW || - p_hdr10_mastering->white_point_x > - V4L2_HDR10_MASTERING_WHITE_POINT_X_HIGH || - p_hdr10_mastering->white_point_y < - V4L2_HDR10_MASTERING_WHITE_POINT_Y_LOW || - p_hdr10_mastering->white_point_y > - V4L2_HDR10_MASTERING_WHITE_POINT_Y_HIGH) - return -EINVAL; - - if (p_hdr10_mastering->max_display_mastering_luminance < - V4L2_HDR10_MASTERING_MAX_LUMA_LOW || - p_hdr10_mastering->max_display_mastering_luminance > - V4L2_HDR10_MASTERING_MAX_LUMA_HIGH || - p_hdr10_mastering->min_display_mastering_luminance < - V4L2_HDR10_MASTERING_MIN_LUMA_LOW || - p_hdr10_mastering->min_display_mastering_luminance > - V4L2_HDR10_MASTERING_MIN_LUMA_HIGH) - return -EINVAL; - - /* The following restriction comes from ITU-T Rec. H.265 spec */ - if (p_hdr10_mastering->max_display_mastering_luminance == - V4L2_HDR10_MASTERING_MAX_LUMA_LOW && - p_hdr10_mastering->min_display_mastering_luminance == - V4L2_HDR10_MASTERING_MIN_LUMA_HIGH) - return -EINVAL; - - break; - - case V4L2_CTRL_TYPE_HEVC_SCALING_MATRIX: - break; - - case V4L2_CTRL_TYPE_AREA: - area = p; - if (!area->width || !area->height) - return -EINVAL; - break; - - default: - return -EINVAL; - } - - return 0; -} - -static int std_validate(const struct v4l2_ctrl *ctrl, u32 idx, - union v4l2_ctrl_ptr ptr) -{ - size_t len; - u64 offset; - s64 val; - - switch ((u32)ctrl->type) { - case V4L2_CTRL_TYPE_INTEGER: - return ROUND_TO_RANGE(ptr.p_s32[idx], u32, ctrl); - case V4L2_CTRL_TYPE_INTEGER64: - /* - * We can't use the ROUND_TO_RANGE define here due to - * the u64 divide that needs special care. - */ - val = ptr.p_s64[idx]; - if (ctrl->maximum >= 0 && val >= ctrl->maximum - (s64)(ctrl->step / 2)) - val = ctrl->maximum; - else - val += (s64)(ctrl->step / 2); - val = clamp_t(s64, val, ctrl->minimum, ctrl->maximum); - offset = val - ctrl->minimum; - do_div(offset, ctrl->step); - ptr.p_s64[idx] = ctrl->minimum + offset * ctrl->step; - return 0; - case V4L2_CTRL_TYPE_U8: - return ROUND_TO_RANGE(ptr.p_u8[idx], u8, ctrl); - case V4L2_CTRL_TYPE_U16: - return ROUND_TO_RANGE(ptr.p_u16[idx], u16, ctrl); - case V4L2_CTRL_TYPE_U32: - return ROUND_TO_RANGE(ptr.p_u32[idx], u32, ctrl); - - case V4L2_CTRL_TYPE_BOOLEAN: - ptr.p_s32[idx] = !!ptr.p_s32[idx]; - return 0; - - case V4L2_CTRL_TYPE_MENU: - case V4L2_CTRL_TYPE_INTEGER_MENU: - if (ptr.p_s32[idx] < ctrl->minimum || ptr.p_s32[idx] > ctrl->maximum) - return -ERANGE; - if (ptr.p_s32[idx] < BITS_PER_LONG_LONG && - (ctrl->menu_skip_mask & BIT_ULL(ptr.p_s32[idx]))) - return -EINVAL; - if (ctrl->type == V4L2_CTRL_TYPE_MENU && - ctrl->qmenu[ptr.p_s32[idx]][0] == '\0') - return -EINVAL; - return 0; - - case V4L2_CTRL_TYPE_BITMASK: - ptr.p_s32[idx] &= ctrl->maximum; - return 0; - - case V4L2_CTRL_TYPE_BUTTON: - case V4L2_CTRL_TYPE_CTRL_CLASS: - ptr.p_s32[idx] = 0; - return 0; - - case V4L2_CTRL_TYPE_STRING: - idx *= ctrl->elem_size; - len = strlen(ptr.p_char + idx); - if (len < ctrl->minimum) - return -ERANGE; - if ((len - (u32)ctrl->minimum) % (u32)ctrl->step) - return -ERANGE; - return 0; - - default: - return std_validate_compound(ctrl, idx, ptr); - } -} - -static const struct v4l2_ctrl_type_ops std_type_ops = { - .equal = std_equal, - .init = std_init, - .log = std_log, - .validate = std_validate, -}; - -/* Helper function: copy the given control value back to the caller */ -static int ptr_to_user(struct v4l2_ext_control *c, - struct v4l2_ctrl *ctrl, - union v4l2_ctrl_ptr ptr) -{ - u32 len; - - if (ctrl->is_ptr && !ctrl->is_string) - return copy_to_user(c->ptr, ptr.p_const, c->size) ? - -EFAULT : 0; - - switch (ctrl->type) { - case V4L2_CTRL_TYPE_STRING: - len = strlen(ptr.p_char); - if (c->size < len + 1) { - c->size = ctrl->elem_size; - return -ENOSPC; - } - return copy_to_user(c->string, ptr.p_char, len + 1) ? - -EFAULT : 0; - case V4L2_CTRL_TYPE_INTEGER64: - c->value64 = *ptr.p_s64; - break; - default: - c->value = *ptr.p_s32; - break; - } - return 0; -} - -/* Helper function: copy the current control value back to the caller */ -static int cur_to_user(struct v4l2_ext_control *c, - struct v4l2_ctrl *ctrl) -{ - return ptr_to_user(c, ctrl, ctrl->p_cur); -} - -/* Helper function: copy the new control value back to the caller */ -static int new_to_user(struct v4l2_ext_control *c, - struct v4l2_ctrl *ctrl) -{ - return ptr_to_user(c, ctrl, ctrl->p_new); -} - -/* Helper function: copy the request value back to the caller */ -static int req_to_user(struct v4l2_ext_control *c, - struct v4l2_ctrl_ref *ref) -{ - return ptr_to_user(c, ref->ctrl, ref->p_req); -} - -/* Helper function: copy the initial control value back to the caller */ -static int def_to_user(struct v4l2_ext_control *c, struct v4l2_ctrl *ctrl) -{ - int idx; - - for (idx = 0; idx < ctrl->elems; idx++) - ctrl->type_ops->init(ctrl, idx, ctrl->p_new); - - return ptr_to_user(c, ctrl, ctrl->p_new); -} - -/* Helper function: copy the caller-provider value to the given control value */ -static int user_to_ptr(struct v4l2_ext_control *c, - struct v4l2_ctrl *ctrl, - union v4l2_ctrl_ptr ptr) -{ - int ret; - u32 size; - - ctrl->is_new = 1; - if (ctrl->is_ptr && !ctrl->is_string) { - unsigned idx; - - ret = copy_from_user(ptr.p, c->ptr, c->size) ? -EFAULT : 0; - if (ret || !ctrl->is_array) - return ret; - for (idx = c->size / ctrl->elem_size; idx < ctrl->elems; idx++) - ctrl->type_ops->init(ctrl, idx, ptr); - return 0; - } - - switch (ctrl->type) { - case V4L2_CTRL_TYPE_INTEGER64: - *ptr.p_s64 = c->value64; - break; - case V4L2_CTRL_TYPE_STRING: - size = c->size; - if (size == 0) - return -ERANGE; - if (size > ctrl->maximum + 1) - size = ctrl->maximum + 1; - ret = copy_from_user(ptr.p_char, c->string, size) ? -EFAULT : 0; - if (!ret) { - char last = ptr.p_char[size - 1]; - - ptr.p_char[size - 1] = 0; - /* If the string was longer than ctrl->maximum, - then return an error. */ - if (strlen(ptr.p_char) == ctrl->maximum && last) - return -ERANGE; - } - return ret; - default: - *ptr.p_s32 = c->value; - break; - } - return 0; -} - -/* Helper function: copy the caller-provider value as the new control value */ -static int user_to_new(struct v4l2_ext_control *c, - struct v4l2_ctrl *ctrl) -{ - return user_to_ptr(c, ctrl, ctrl->p_new); -} - -/* Copy the one value to another. */ -static void ptr_to_ptr(struct v4l2_ctrl *ctrl, - union v4l2_ctrl_ptr from, union v4l2_ctrl_ptr to) -{ - if (ctrl == NULL) - return; - memcpy(to.p, from.p_const, ctrl->elems * ctrl->elem_size); -} - -/* Copy the new value to the current value. */ -static void new_to_cur(struct v4l2_fh *fh, struct v4l2_ctrl *ctrl, u32 ch_flags) -{ - bool changed; - - if (ctrl == NULL) - return; - - /* has_changed is set by cluster_changed */ - changed = ctrl->has_changed; - if (changed) - ptr_to_ptr(ctrl, ctrl->p_new, ctrl->p_cur); - - if (ch_flags & V4L2_EVENT_CTRL_CH_FLAGS) { - /* Note: CH_FLAGS is only set for auto clusters. */ - ctrl->flags &= - ~(V4L2_CTRL_FLAG_INACTIVE | V4L2_CTRL_FLAG_VOLATILE); - if (!is_cur_manual(ctrl->cluster[0])) { - ctrl->flags |= V4L2_CTRL_FLAG_INACTIVE; - if (ctrl->cluster[0]->has_volatiles) - ctrl->flags |= V4L2_CTRL_FLAG_VOLATILE; - } - fh = NULL; - } - if (changed || ch_flags) { - /* If a control was changed that was not one of the controls - modified by the application, then send the event to all. */ - if (!ctrl->is_new) - fh = NULL; - send_event(fh, ctrl, - (changed ? V4L2_EVENT_CTRL_CH_VALUE : 0) | ch_flags); - if (ctrl->call_notify && changed && ctrl->handler->notify) - ctrl->handler->notify(ctrl, ctrl->handler->notify_priv); - } -} - -/* Copy the current value to the new value */ -static void cur_to_new(struct v4l2_ctrl *ctrl) -{ - if (ctrl == NULL) - return; - ptr_to_ptr(ctrl, ctrl->p_cur, ctrl->p_new); -} - -/* Copy the new value to the request value */ -static void new_to_req(struct v4l2_ctrl_ref *ref) -{ - if (!ref) - return; - ptr_to_ptr(ref->ctrl, ref->ctrl->p_new, ref->p_req); - ref->valid_p_req = true; -} - -/* Copy the current value to the request value */ -static void cur_to_req(struct v4l2_ctrl_ref *ref) -{ - if (!ref) - return; - ptr_to_ptr(ref->ctrl, ref->ctrl->p_cur, ref->p_req); - ref->valid_p_req = true; -} - -/* Copy the request value to the new value */ -static void req_to_new(struct v4l2_ctrl_ref *ref) -{ - if (!ref) - return; - if (ref->valid_p_req) - ptr_to_ptr(ref->ctrl, ref->p_req, ref->ctrl->p_new); - else - ptr_to_ptr(ref->ctrl, ref->ctrl->p_cur, ref->ctrl->p_new); -} - -/* Return non-zero if one or more of the controls in the cluster has a new - value that differs from the current value. */ -static int cluster_changed(struct v4l2_ctrl *master) -{ - bool changed = false; - unsigned idx; - int i; - - for (i = 0; i < master->ncontrols; i++) { - struct v4l2_ctrl *ctrl = master->cluster[i]; - bool ctrl_changed = false; - - if (ctrl == NULL) - continue; - - if (ctrl->flags & V4L2_CTRL_FLAG_EXECUTE_ON_WRITE) - changed = ctrl_changed = true; - - /* - * Set has_changed to false to avoid generating - * the event V4L2_EVENT_CTRL_CH_VALUE - */ - if (ctrl->flags & V4L2_CTRL_FLAG_VOLATILE) { - ctrl->has_changed = false; - continue; - } - - for (idx = 0; !ctrl_changed && idx < ctrl->elems; idx++) - ctrl_changed = !ctrl->type_ops->equal(ctrl, idx, - ctrl->p_cur, ctrl->p_new); - ctrl->has_changed = ctrl_changed; - changed |= ctrl->has_changed; - } - return changed; -} - -/* Control range checking */ -static int check_range(enum v4l2_ctrl_type type, - s64 min, s64 max, u64 step, s64 def) -{ - switch (type) { - case V4L2_CTRL_TYPE_BOOLEAN: - if (step != 1 || max > 1 || min < 0) - return -ERANGE; - fallthrough; - case V4L2_CTRL_TYPE_U8: - case V4L2_CTRL_TYPE_U16: - case V4L2_CTRL_TYPE_U32: - case V4L2_CTRL_TYPE_INTEGER: - case V4L2_CTRL_TYPE_INTEGER64: - if (step == 0 || min > max || def < min || def > max) - return -ERANGE; - return 0; - case V4L2_CTRL_TYPE_BITMASK: - if (step || min || !max || (def & ~max)) - return -ERANGE; - return 0; - case V4L2_CTRL_TYPE_MENU: - case V4L2_CTRL_TYPE_INTEGER_MENU: - if (min > max || def < min || def > max) - return -ERANGE; - /* Note: step == menu_skip_mask for menu controls. - So here we check if the default value is masked out. */ - if (step && ((1 << def) & step)) - return -EINVAL; - return 0; - case V4L2_CTRL_TYPE_STRING: - if (min > max || min < 0 || step < 1 || def) - return -ERANGE; - return 0; - default: - return 0; - } -} - -/* Validate a new control */ -static int validate_new(const struct v4l2_ctrl *ctrl, union v4l2_ctrl_ptr p_new) -{ - unsigned idx; - int err = 0; - - for (idx = 0; !err && idx < ctrl->elems; idx++) - err = ctrl->type_ops->validate(ctrl, idx, p_new); - return err; -} - -static inline u32 node2id(struct list_head *node) -{ - return list_entry(node, struct v4l2_ctrl_ref, node)->ctrl->id; -} - -/* Set the handler's error code if it wasn't set earlier already */ -static inline int handler_set_err(struct v4l2_ctrl_handler *hdl, int err) -{ - if (hdl->error == 0) - hdl->error = err; - return err; -} - -/* Initialize the handler */ -int v4l2_ctrl_handler_init_class(struct v4l2_ctrl_handler *hdl, - unsigned nr_of_controls_hint, - struct lock_class_key *key, const char *name) -{ - mutex_init(&hdl->_lock); - hdl->lock = &hdl->_lock; - lockdep_set_class_and_name(hdl->lock, key, name); - INIT_LIST_HEAD(&hdl->ctrls); - INIT_LIST_HEAD(&hdl->ctrl_refs); - INIT_LIST_HEAD(&hdl->requests); - INIT_LIST_HEAD(&hdl->requests_queued); - hdl->request_is_queued = false; - hdl->nr_of_buckets = 1 + nr_of_controls_hint / 8; - hdl->buckets = kvmalloc_array(hdl->nr_of_buckets, - sizeof(hdl->buckets[0]), - GFP_KERNEL | __GFP_ZERO); - hdl->error = hdl->buckets ? 0 : -ENOMEM; - media_request_object_init(&hdl->req_obj); - return hdl->error; -} -EXPORT_SYMBOL(v4l2_ctrl_handler_init_class); - -/* Free all controls and control refs */ -void v4l2_ctrl_handler_free(struct v4l2_ctrl_handler *hdl) -{ - struct v4l2_ctrl_ref *ref, *next_ref; - struct v4l2_ctrl *ctrl, *next_ctrl; - struct v4l2_subscribed_event *sev, *next_sev; - - if (hdl == NULL || hdl->buckets == NULL) - return; - - /* - * If the main handler is freed and it is used by handler objects in - * outstanding requests, then unbind and put those objects before - * freeing the main handler. - * - * The main handler can be identified by having a NULL ops pointer in - * the request object. - */ - if (!hdl->req_obj.ops && !list_empty(&hdl->requests)) { - struct v4l2_ctrl_handler *req, *next_req; - - list_for_each_entry_safe(req, next_req, &hdl->requests, requests) { - media_request_object_unbind(&req->req_obj); - media_request_object_put(&req->req_obj); - } - } - mutex_lock(hdl->lock); - /* Free all nodes */ - list_for_each_entry_safe(ref, next_ref, &hdl->ctrl_refs, node) { - list_del(&ref->node); - kfree(ref); - } - /* Free all controls owned by the handler */ - list_for_each_entry_safe(ctrl, next_ctrl, &hdl->ctrls, node) { - list_del(&ctrl->node); - list_for_each_entry_safe(sev, next_sev, &ctrl->ev_subs, node) - list_del(&sev->node); - kvfree(ctrl); - } - kvfree(hdl->buckets); - hdl->buckets = NULL; - hdl->cached = NULL; - hdl->error = 0; - mutex_unlock(hdl->lock); - mutex_destroy(&hdl->_lock); -} -EXPORT_SYMBOL(v4l2_ctrl_handler_free); - -/* For backwards compatibility: V4L2_CID_PRIVATE_BASE should no longer - be used except in G_CTRL, S_CTRL, QUERYCTRL and QUERYMENU when dealing - with applications that do not use the NEXT_CTRL flag. - - We just find the n-th private user control. It's O(N), but that should not - be an issue in this particular case. */ -static struct v4l2_ctrl_ref *find_private_ref( - struct v4l2_ctrl_handler *hdl, u32 id) -{ - struct v4l2_ctrl_ref *ref; - - id -= V4L2_CID_PRIVATE_BASE; - list_for_each_entry(ref, &hdl->ctrl_refs, node) { - /* Search for private user controls that are compatible with - VIDIOC_G/S_CTRL. */ - if (V4L2_CTRL_ID2WHICH(ref->ctrl->id) == V4L2_CTRL_CLASS_USER && - V4L2_CTRL_DRIVER_PRIV(ref->ctrl->id)) { - if (!ref->ctrl->is_int) - continue; - if (id == 0) - return ref; - id--; - } - } - return NULL; -} - -/* Find a control with the given ID. */ -static struct v4l2_ctrl_ref *find_ref(struct v4l2_ctrl_handler *hdl, u32 id) -{ - struct v4l2_ctrl_ref *ref; - int bucket; - - id &= V4L2_CTRL_ID_MASK; - - /* Old-style private controls need special handling */ - if (id >= V4L2_CID_PRIVATE_BASE) - return find_private_ref(hdl, id); - bucket = id % hdl->nr_of_buckets; - - /* Simple optimization: cache the last control found */ - if (hdl->cached && hdl->cached->ctrl->id == id) - return hdl->cached; - - /* Not in cache, search the hash */ - ref = hdl->buckets ? hdl->buckets[bucket] : NULL; - while (ref && ref->ctrl->id != id) - ref = ref->next; - - if (ref) - hdl->cached = ref; /* cache it! */ - return ref; -} - -/* Find a control with the given ID. Take the handler's lock first. */ -static struct v4l2_ctrl_ref *find_ref_lock( - struct v4l2_ctrl_handler *hdl, u32 id) -{ - struct v4l2_ctrl_ref *ref = NULL; - - if (hdl) { - mutex_lock(hdl->lock); - ref = find_ref(hdl, id); - mutex_unlock(hdl->lock); - } - return ref; -} - -/* Find a control with the given ID. */ -struct v4l2_ctrl *v4l2_ctrl_find(struct v4l2_ctrl_handler *hdl, u32 id) -{ - struct v4l2_ctrl_ref *ref = find_ref_lock(hdl, id); - - return ref ? ref->ctrl : NULL; -} -EXPORT_SYMBOL(v4l2_ctrl_find); - -/* Allocate a new v4l2_ctrl_ref and hook it into the handler. */ -static int handler_new_ref(struct v4l2_ctrl_handler *hdl, - struct v4l2_ctrl *ctrl, - struct v4l2_ctrl_ref **ctrl_ref, - bool from_other_dev, bool allocate_req) -{ - struct v4l2_ctrl_ref *ref; - struct v4l2_ctrl_ref *new_ref; - u32 id = ctrl->id; - u32 class_ctrl = V4L2_CTRL_ID2WHICH(id) | 1; - int bucket = id % hdl->nr_of_buckets; /* which bucket to use */ - unsigned int size_extra_req = 0; - - if (ctrl_ref) - *ctrl_ref = NULL; - - /* - * Automatically add the control class if it is not yet present and - * the new control is not a compound control. - */ - if (ctrl->type < V4L2_CTRL_COMPOUND_TYPES && - id != class_ctrl && find_ref_lock(hdl, class_ctrl) == NULL) - if (!v4l2_ctrl_new_std(hdl, NULL, class_ctrl, 0, 0, 0, 0)) - return hdl->error; - - if (hdl->error) - return hdl->error; - - if (allocate_req) - size_extra_req = ctrl->elems * ctrl->elem_size; - new_ref = kzalloc(sizeof(*new_ref) + size_extra_req, GFP_KERNEL); - if (!new_ref) - return handler_set_err(hdl, -ENOMEM); - new_ref->ctrl = ctrl; - new_ref->from_other_dev = from_other_dev; - if (size_extra_req) - new_ref->p_req.p = &new_ref[1]; - - INIT_LIST_HEAD(&new_ref->node); - - mutex_lock(hdl->lock); - - /* Add immediately at the end of the list if the list is empty, or if - the last element in the list has a lower ID. - This ensures that when elements are added in ascending order the - insertion is an O(1) operation. */ - if (list_empty(&hdl->ctrl_refs) || id > node2id(hdl->ctrl_refs.prev)) { - list_add_tail(&new_ref->node, &hdl->ctrl_refs); - goto insert_in_hash; - } - - /* Find insert position in sorted list */ - list_for_each_entry(ref, &hdl->ctrl_refs, node) { - if (ref->ctrl->id < id) - continue; - /* Don't add duplicates */ - if (ref->ctrl->id == id) { - kfree(new_ref); - goto unlock; - } - list_add(&new_ref->node, ref->node.prev); - break; - } - -insert_in_hash: - /* Insert the control node in the hash */ - new_ref->next = hdl->buckets[bucket]; - hdl->buckets[bucket] = new_ref; - if (ctrl_ref) - *ctrl_ref = new_ref; - if (ctrl->handler == hdl) { - /* By default each control starts in a cluster of its own. - * new_ref->ctrl is basically a cluster array with one - * element, so that's perfect to use as the cluster pointer. - * But only do this for the handler that owns the control. - */ - ctrl->cluster = &new_ref->ctrl; - ctrl->ncontrols = 1; - } - -unlock: - mutex_unlock(hdl->lock); - return 0; -} - -/* Add a new control */ -static struct v4l2_ctrl *v4l2_ctrl_new(struct v4l2_ctrl_handler *hdl, - const struct v4l2_ctrl_ops *ops, - const struct v4l2_ctrl_type_ops *type_ops, - u32 id, const char *name, enum v4l2_ctrl_type type, - s64 min, s64 max, u64 step, s64 def, - const u32 dims[V4L2_CTRL_MAX_DIMS], u32 elem_size, - u32 flags, const char * const *qmenu, - const s64 *qmenu_int, const union v4l2_ctrl_ptr p_def, - void *priv) -{ - struct v4l2_ctrl *ctrl; - unsigned sz_extra; - unsigned nr_of_dims = 0; - unsigned elems = 1; - bool is_array; - unsigned tot_ctrl_size; - unsigned idx; - void *data; - int err; - - if (hdl->error) - return NULL; - - while (dims && dims[nr_of_dims]) { - elems *= dims[nr_of_dims]; - nr_of_dims++; - if (nr_of_dims == V4L2_CTRL_MAX_DIMS) - break; - } - is_array = nr_of_dims > 0; - - /* Prefill elem_size for all types handled by std_type_ops */ - switch ((u32)type) { - case V4L2_CTRL_TYPE_INTEGER64: - elem_size = sizeof(s64); - break; - case V4L2_CTRL_TYPE_STRING: - elem_size = max + 1; - break; - case V4L2_CTRL_TYPE_U8: - elem_size = sizeof(u8); - break; - case V4L2_CTRL_TYPE_U16: - elem_size = sizeof(u16); - break; - case V4L2_CTRL_TYPE_U32: - elem_size = sizeof(u32); - break; - case V4L2_CTRL_TYPE_MPEG2_SLICE_PARAMS: - elem_size = sizeof(struct v4l2_ctrl_mpeg2_slice_params); - break; - case V4L2_CTRL_TYPE_MPEG2_QUANTIZATION: - elem_size = sizeof(struct v4l2_ctrl_mpeg2_quantization); - break; - case V4L2_CTRL_TYPE_FWHT_PARAMS: - elem_size = sizeof(struct v4l2_ctrl_fwht_params); - break; - case V4L2_CTRL_TYPE_H264_SPS: - elem_size = sizeof(struct v4l2_ctrl_h264_sps); - break; - case V4L2_CTRL_TYPE_H264_PPS: - elem_size = sizeof(struct v4l2_ctrl_h264_pps); - break; - case V4L2_CTRL_TYPE_H264_SCALING_MATRIX: - elem_size = sizeof(struct v4l2_ctrl_h264_scaling_matrix); - break; - case V4L2_CTRL_TYPE_H264_SLICE_PARAMS: - elem_size = sizeof(struct v4l2_ctrl_h264_slice_params); - break; - case V4L2_CTRL_TYPE_H264_DECODE_PARAMS: - elem_size = sizeof(struct v4l2_ctrl_h264_decode_params); - break; - case V4L2_CTRL_TYPE_H264_PRED_WEIGHTS: - elem_size = sizeof(struct v4l2_ctrl_h264_pred_weights); - break; - case V4L2_CTRL_TYPE_VP8_FRAME: - elem_size = sizeof(struct v4l2_ctrl_vp8_frame); - break; - case V4L2_CTRL_TYPE_HEVC_SPS: - elem_size = sizeof(struct v4l2_ctrl_hevc_sps); - break; - case V4L2_CTRL_TYPE_HEVC_PPS: - elem_size = sizeof(struct v4l2_ctrl_hevc_pps); - break; - case V4L2_CTRL_TYPE_HEVC_SLICE_PARAMS: - elem_size = sizeof(struct v4l2_ctrl_hevc_slice_params); - break; - case V4L2_CTRL_TYPE_HDR10_CLL_INFO: - elem_size = sizeof(struct v4l2_ctrl_hdr10_cll_info); - break; - case V4L2_CTRL_TYPE_HDR10_MASTERING_DISPLAY: - elem_size = sizeof(struct v4l2_ctrl_hdr10_mastering_display); - break; - case V4L2_CTRL_TYPE_HEVC_SCALING_MATRIX: - elem_size = sizeof(struct v4l2_ctrl_hevc_scaling_matrix); - break; - case V4L2_CTRL_TYPE_AREA: - elem_size = sizeof(struct v4l2_area); - break; - default: - if (type < V4L2_CTRL_COMPOUND_TYPES) - elem_size = sizeof(s32); - break; - } - tot_ctrl_size = elem_size * elems; - - /* Sanity checks */ - if (id == 0 || name == NULL || !elem_size || - id >= V4L2_CID_PRIVATE_BASE || - (type == V4L2_CTRL_TYPE_MENU && qmenu == NULL) || - (type == V4L2_CTRL_TYPE_INTEGER_MENU && qmenu_int == NULL)) { - handler_set_err(hdl, -ERANGE); - return NULL; - } - err = check_range(type, min, max, step, def); - if (err) { - handler_set_err(hdl, err); - return NULL; - } - if (is_array && - (type == V4L2_CTRL_TYPE_BUTTON || - type == V4L2_CTRL_TYPE_CTRL_CLASS)) { - handler_set_err(hdl, -EINVAL); - return NULL; - } - - sz_extra = 0; - if (type == V4L2_CTRL_TYPE_BUTTON) - flags |= V4L2_CTRL_FLAG_WRITE_ONLY | - V4L2_CTRL_FLAG_EXECUTE_ON_WRITE; - else if (type == V4L2_CTRL_TYPE_CTRL_CLASS) - flags |= V4L2_CTRL_FLAG_READ_ONLY; - else if (type == V4L2_CTRL_TYPE_INTEGER64 || - type == V4L2_CTRL_TYPE_STRING || - type >= V4L2_CTRL_COMPOUND_TYPES || - is_array) - sz_extra += 2 * tot_ctrl_size; - - if (type >= V4L2_CTRL_COMPOUND_TYPES && p_def.p_const) - sz_extra += elem_size; - - ctrl = kvzalloc(sizeof(*ctrl) + sz_extra, GFP_KERNEL); - if (ctrl == NULL) { - handler_set_err(hdl, -ENOMEM); - return NULL; - } - - INIT_LIST_HEAD(&ctrl->node); - INIT_LIST_HEAD(&ctrl->ev_subs); - ctrl->handler = hdl; - ctrl->ops = ops; - ctrl->type_ops = type_ops ? type_ops : &std_type_ops; - ctrl->id = id; - ctrl->name = name; - ctrl->type = type; - ctrl->flags = flags; - ctrl->minimum = min; - ctrl->maximum = max; - ctrl->step = step; - ctrl->default_value = def; - ctrl->is_string = !is_array && type == V4L2_CTRL_TYPE_STRING; - ctrl->is_ptr = is_array || type >= V4L2_CTRL_COMPOUND_TYPES || ctrl->is_string; - ctrl->is_int = !ctrl->is_ptr && type != V4L2_CTRL_TYPE_INTEGER64; - ctrl->is_array = is_array; - ctrl->elems = elems; - ctrl->nr_of_dims = nr_of_dims; - if (nr_of_dims) - memcpy(ctrl->dims, dims, nr_of_dims * sizeof(dims[0])); - ctrl->elem_size = elem_size; - if (type == V4L2_CTRL_TYPE_MENU) - ctrl->qmenu = qmenu; - else if (type == V4L2_CTRL_TYPE_INTEGER_MENU) - ctrl->qmenu_int = qmenu_int; - ctrl->priv = priv; - ctrl->cur.val = ctrl->val = def; - data = &ctrl[1]; - - if (!ctrl->is_int) { - ctrl->p_new.p = data; - ctrl->p_cur.p = data + tot_ctrl_size; - } else { - ctrl->p_new.p = &ctrl->val; - ctrl->p_cur.p = &ctrl->cur.val; - } - - if (type >= V4L2_CTRL_COMPOUND_TYPES && p_def.p_const) { - ctrl->p_def.p = ctrl->p_cur.p + tot_ctrl_size; - memcpy(ctrl->p_def.p, p_def.p_const, elem_size); - } - - for (idx = 0; idx < elems; idx++) { - ctrl->type_ops->init(ctrl, idx, ctrl->p_cur); - ctrl->type_ops->init(ctrl, idx, ctrl->p_new); - } - - if (handler_new_ref(hdl, ctrl, NULL, false, false)) { - kvfree(ctrl); - return NULL; - } - mutex_lock(hdl->lock); - list_add_tail(&ctrl->node, &hdl->ctrls); - mutex_unlock(hdl->lock); - return ctrl; -} - -struct v4l2_ctrl *v4l2_ctrl_new_custom(struct v4l2_ctrl_handler *hdl, - const struct v4l2_ctrl_config *cfg, void *priv) -{ - bool is_menu; - struct v4l2_ctrl *ctrl; - const char *name = cfg->name; - const char * const *qmenu = cfg->qmenu; - const s64 *qmenu_int = cfg->qmenu_int; - enum v4l2_ctrl_type type = cfg->type; - u32 flags = cfg->flags; - s64 min = cfg->min; - s64 max = cfg->max; - u64 step = cfg->step; - s64 def = cfg->def; - - if (name == NULL) - v4l2_ctrl_fill(cfg->id, &name, &type, &min, &max, &step, - &def, &flags); - - is_menu = (type == V4L2_CTRL_TYPE_MENU || - type == V4L2_CTRL_TYPE_INTEGER_MENU); - if (is_menu) - WARN_ON(step); - else - WARN_ON(cfg->menu_skip_mask); - if (type == V4L2_CTRL_TYPE_MENU && !qmenu) { - qmenu = v4l2_ctrl_get_menu(cfg->id); - } else if (type == V4L2_CTRL_TYPE_INTEGER_MENU && !qmenu_int) { - handler_set_err(hdl, -EINVAL); - return NULL; - } - - ctrl = v4l2_ctrl_new(hdl, cfg->ops, cfg->type_ops, cfg->id, name, - type, min, max, - is_menu ? cfg->menu_skip_mask : step, def, - cfg->dims, cfg->elem_size, - flags, qmenu, qmenu_int, cfg->p_def, priv); - if (ctrl) - ctrl->is_private = cfg->is_private; - return ctrl; -} -EXPORT_SYMBOL(v4l2_ctrl_new_custom); - -/* Helper function for standard non-menu controls */ -struct v4l2_ctrl *v4l2_ctrl_new_std(struct v4l2_ctrl_handler *hdl, - const struct v4l2_ctrl_ops *ops, - u32 id, s64 min, s64 max, u64 step, s64 def) -{ - const char *name; - enum v4l2_ctrl_type type; - u32 flags; - - v4l2_ctrl_fill(id, &name, &type, &min, &max, &step, &def, &flags); - if (type == V4L2_CTRL_TYPE_MENU || - type == V4L2_CTRL_TYPE_INTEGER_MENU || - type >= V4L2_CTRL_COMPOUND_TYPES) { - handler_set_err(hdl, -EINVAL); - return NULL; - } - return v4l2_ctrl_new(hdl, ops, NULL, id, name, type, - min, max, step, def, NULL, 0, - flags, NULL, NULL, ptr_null, NULL); -} -EXPORT_SYMBOL(v4l2_ctrl_new_std); - -/* Helper function for standard menu controls */ -struct v4l2_ctrl *v4l2_ctrl_new_std_menu(struct v4l2_ctrl_handler *hdl, - const struct v4l2_ctrl_ops *ops, - u32 id, u8 _max, u64 mask, u8 _def) -{ - const char * const *qmenu = NULL; - const s64 *qmenu_int = NULL; - unsigned int qmenu_int_len = 0; - const char *name; - enum v4l2_ctrl_type type; - s64 min; - s64 max = _max; - s64 def = _def; - u64 step; - u32 flags; - - v4l2_ctrl_fill(id, &name, &type, &min, &max, &step, &def, &flags); - - if (type == V4L2_CTRL_TYPE_MENU) - qmenu = v4l2_ctrl_get_menu(id); - else if (type == V4L2_CTRL_TYPE_INTEGER_MENU) - qmenu_int = v4l2_ctrl_get_int_menu(id, &qmenu_int_len); - - if ((!qmenu && !qmenu_int) || (qmenu_int && max > qmenu_int_len)) { - handler_set_err(hdl, -EINVAL); - return NULL; - } - return v4l2_ctrl_new(hdl, ops, NULL, id, name, type, - 0, max, mask, def, NULL, 0, - flags, qmenu, qmenu_int, ptr_null, NULL); -} -EXPORT_SYMBOL(v4l2_ctrl_new_std_menu); - -/* Helper function for standard menu controls with driver defined menu */ -struct v4l2_ctrl *v4l2_ctrl_new_std_menu_items(struct v4l2_ctrl_handler *hdl, - const struct v4l2_ctrl_ops *ops, u32 id, u8 _max, - u64 mask, u8 _def, const char * const *qmenu) -{ - enum v4l2_ctrl_type type; - const char *name; - u32 flags; - u64 step; - s64 min; - s64 max = _max; - s64 def = _def; - - /* v4l2_ctrl_new_std_menu_items() should only be called for - * standard controls without a standard menu. - */ - if (v4l2_ctrl_get_menu(id)) { - handler_set_err(hdl, -EINVAL); - return NULL; - } - - v4l2_ctrl_fill(id, &name, &type, &min, &max, &step, &def, &flags); - if (type != V4L2_CTRL_TYPE_MENU || qmenu == NULL) { - handler_set_err(hdl, -EINVAL); - return NULL; - } - return v4l2_ctrl_new(hdl, ops, NULL, id, name, type, - 0, max, mask, def, NULL, 0, - flags, qmenu, NULL, ptr_null, NULL); - -} -EXPORT_SYMBOL(v4l2_ctrl_new_std_menu_items); - -/* Helper function for standard compound controls */ -struct v4l2_ctrl *v4l2_ctrl_new_std_compound(struct v4l2_ctrl_handler *hdl, - const struct v4l2_ctrl_ops *ops, u32 id, - const union v4l2_ctrl_ptr p_def) -{ - const char *name; - enum v4l2_ctrl_type type; - u32 flags; - s64 min, max, step, def; - - v4l2_ctrl_fill(id, &name, &type, &min, &max, &step, &def, &flags); - if (type < V4L2_CTRL_COMPOUND_TYPES) { - handler_set_err(hdl, -EINVAL); - return NULL; - } - return v4l2_ctrl_new(hdl, ops, NULL, id, name, type, - min, max, step, def, NULL, 0, - flags, NULL, NULL, p_def, NULL); -} -EXPORT_SYMBOL(v4l2_ctrl_new_std_compound); - -/* Helper function for standard integer menu controls */ -struct v4l2_ctrl *v4l2_ctrl_new_int_menu(struct v4l2_ctrl_handler *hdl, - const struct v4l2_ctrl_ops *ops, - u32 id, u8 _max, u8 _def, const s64 *qmenu_int) -{ - const char *name; - enum v4l2_ctrl_type type; - s64 min; - u64 step; - s64 max = _max; - s64 def = _def; - u32 flags; - - v4l2_ctrl_fill(id, &name, &type, &min, &max, &step, &def, &flags); - if (type != V4L2_CTRL_TYPE_INTEGER_MENU) { - handler_set_err(hdl, -EINVAL); - return NULL; - } - return v4l2_ctrl_new(hdl, ops, NULL, id, name, type, - 0, max, 0, def, NULL, 0, - flags, NULL, qmenu_int, ptr_null, NULL); -} -EXPORT_SYMBOL(v4l2_ctrl_new_int_menu); - -/* Add the controls from another handler to our own. */ -int v4l2_ctrl_add_handler(struct v4l2_ctrl_handler *hdl, - struct v4l2_ctrl_handler *add, - bool (*filter)(const struct v4l2_ctrl *ctrl), - bool from_other_dev) -{ - struct v4l2_ctrl_ref *ref; - int ret = 0; - - /* Do nothing if either handler is NULL or if they are the same */ - if (!hdl || !add || hdl == add) - return 0; - if (hdl->error) - return hdl->error; - mutex_lock(add->lock); - list_for_each_entry(ref, &add->ctrl_refs, node) { - struct v4l2_ctrl *ctrl = ref->ctrl; - - /* Skip handler-private controls. */ - if (ctrl->is_private) - continue; - /* And control classes */ - if (ctrl->type == V4L2_CTRL_TYPE_CTRL_CLASS) - continue; - /* Filter any unwanted controls */ - if (filter && !filter(ctrl)) - continue; - ret = handler_new_ref(hdl, ctrl, NULL, from_other_dev, false); - if (ret) - break; - } - mutex_unlock(add->lock); - return ret; -} -EXPORT_SYMBOL(v4l2_ctrl_add_handler); - -bool v4l2_ctrl_radio_filter(const struct v4l2_ctrl *ctrl) -{ - if (V4L2_CTRL_ID2WHICH(ctrl->id) == V4L2_CTRL_CLASS_FM_TX) - return true; - if (V4L2_CTRL_ID2WHICH(ctrl->id) == V4L2_CTRL_CLASS_FM_RX) - return true; - switch (ctrl->id) { - case V4L2_CID_AUDIO_MUTE: - case V4L2_CID_AUDIO_VOLUME: - case V4L2_CID_AUDIO_BALANCE: - case V4L2_CID_AUDIO_BASS: - case V4L2_CID_AUDIO_TREBLE: - case V4L2_CID_AUDIO_LOUDNESS: - return true; - default: - break; - } - return false; -} -EXPORT_SYMBOL(v4l2_ctrl_radio_filter); - -/* Cluster controls */ -void v4l2_ctrl_cluster(unsigned ncontrols, struct v4l2_ctrl **controls) -{ - bool has_volatiles = false; - int i; - - /* The first control is the master control and it must not be NULL */ - if (WARN_ON(ncontrols == 0 || controls[0] == NULL)) - return; - - for (i = 0; i < ncontrols; i++) { - if (controls[i]) { - controls[i]->cluster = controls; - controls[i]->ncontrols = ncontrols; - if (controls[i]->flags & V4L2_CTRL_FLAG_VOLATILE) - has_volatiles = true; - } - } - controls[0]->has_volatiles = has_volatiles; -} -EXPORT_SYMBOL(v4l2_ctrl_cluster); - -void v4l2_ctrl_auto_cluster(unsigned ncontrols, struct v4l2_ctrl **controls, - u8 manual_val, bool set_volatile) -{ - struct v4l2_ctrl *master = controls[0]; - u32 flag = 0; - int i; - - v4l2_ctrl_cluster(ncontrols, controls); - WARN_ON(ncontrols <= 1); - WARN_ON(manual_val < master->minimum || manual_val > master->maximum); - WARN_ON(set_volatile && !has_op(master, g_volatile_ctrl)); - master->is_auto = true; - master->has_volatiles = set_volatile; - master->manual_mode_value = manual_val; - master->flags |= V4L2_CTRL_FLAG_UPDATE; - - if (!is_cur_manual(master)) - flag = V4L2_CTRL_FLAG_INACTIVE | - (set_volatile ? V4L2_CTRL_FLAG_VOLATILE : 0); - - for (i = 1; i < ncontrols; i++) - if (controls[i]) - controls[i]->flags |= flag; -} -EXPORT_SYMBOL(v4l2_ctrl_auto_cluster); - -/* Activate/deactivate a control. */ -void v4l2_ctrl_activate(struct v4l2_ctrl *ctrl, bool active) -{ - /* invert since the actual flag is called 'inactive' */ - bool inactive = !active; - bool old; - - if (ctrl == NULL) - return; - - if (inactive) - /* set V4L2_CTRL_FLAG_INACTIVE */ - old = test_and_set_bit(4, &ctrl->flags); - else - /* clear V4L2_CTRL_FLAG_INACTIVE */ - old = test_and_clear_bit(4, &ctrl->flags); - if (old != inactive) - send_event(NULL, ctrl, V4L2_EVENT_CTRL_CH_FLAGS); -} -EXPORT_SYMBOL(v4l2_ctrl_activate); - -void __v4l2_ctrl_grab(struct v4l2_ctrl *ctrl, bool grabbed) -{ - bool old; - - if (ctrl == NULL) - return; - - lockdep_assert_held(ctrl->handler->lock); - - if (grabbed) - /* set V4L2_CTRL_FLAG_GRABBED */ - old = test_and_set_bit(1, &ctrl->flags); - else - /* clear V4L2_CTRL_FLAG_GRABBED */ - old = test_and_clear_bit(1, &ctrl->flags); - if (old != grabbed) - send_event(NULL, ctrl, V4L2_EVENT_CTRL_CH_FLAGS); -} -EXPORT_SYMBOL(__v4l2_ctrl_grab); - -/* Log the control name and value */ -static void log_ctrl(const struct v4l2_ctrl *ctrl, - const char *prefix, const char *colon) -{ - if (ctrl->flags & (V4L2_CTRL_FLAG_DISABLED | V4L2_CTRL_FLAG_WRITE_ONLY)) - return; - if (ctrl->type == V4L2_CTRL_TYPE_CTRL_CLASS) - return; - - pr_info("%s%s%s: ", prefix, colon, ctrl->name); - - ctrl->type_ops->log(ctrl); - - if (ctrl->flags & (V4L2_CTRL_FLAG_INACTIVE | - V4L2_CTRL_FLAG_GRABBED | - V4L2_CTRL_FLAG_VOLATILE)) { - if (ctrl->flags & V4L2_CTRL_FLAG_INACTIVE) - pr_cont(" inactive"); - if (ctrl->flags & V4L2_CTRL_FLAG_GRABBED) - pr_cont(" grabbed"); - if (ctrl->flags & V4L2_CTRL_FLAG_VOLATILE) - pr_cont(" volatile"); - } - pr_cont("\n"); -} - -/* Log all controls owned by the handler */ -void v4l2_ctrl_handler_log_status(struct v4l2_ctrl_handler *hdl, - const char *prefix) -{ - struct v4l2_ctrl *ctrl; - const char *colon = ""; - int len; - - if (hdl == NULL) - return; - if (prefix == NULL) - prefix = ""; - len = strlen(prefix); - if (len && prefix[len - 1] != ' ') - colon = ": "; - mutex_lock(hdl->lock); - list_for_each_entry(ctrl, &hdl->ctrls, node) - if (!(ctrl->flags & V4L2_CTRL_FLAG_DISABLED)) - log_ctrl(ctrl, prefix, colon); - mutex_unlock(hdl->lock); -} -EXPORT_SYMBOL(v4l2_ctrl_handler_log_status); - -int v4l2_ctrl_subdev_log_status(struct v4l2_subdev *sd) -{ - v4l2_ctrl_handler_log_status(sd->ctrl_handler, sd->name); - return 0; -} -EXPORT_SYMBOL(v4l2_ctrl_subdev_log_status); - -/* Call s_ctrl for all controls owned by the handler */ -int __v4l2_ctrl_handler_setup(struct v4l2_ctrl_handler *hdl) -{ - struct v4l2_ctrl *ctrl; - int ret = 0; - - if (hdl == NULL) - return 0; - - lockdep_assert_held(hdl->lock); - - list_for_each_entry(ctrl, &hdl->ctrls, node) - ctrl->done = false; - - list_for_each_entry(ctrl, &hdl->ctrls, node) { - struct v4l2_ctrl *master = ctrl->cluster[0]; - int i; - - /* Skip if this control was already handled by a cluster. */ - /* Skip button controls and read-only controls. */ - if (ctrl->done || ctrl->type == V4L2_CTRL_TYPE_BUTTON || - (ctrl->flags & V4L2_CTRL_FLAG_READ_ONLY)) - continue; - - for (i = 0; i < master->ncontrols; i++) { - if (master->cluster[i]) { - cur_to_new(master->cluster[i]); - master->cluster[i]->is_new = 1; - master->cluster[i]->done = true; - } - } - ret = call_op(master, s_ctrl); - if (ret) - break; - } - - return ret; -} -EXPORT_SYMBOL_GPL(__v4l2_ctrl_handler_setup); - -int v4l2_ctrl_handler_setup(struct v4l2_ctrl_handler *hdl) -{ - int ret; - - if (hdl == NULL) - return 0; - - mutex_lock(hdl->lock); - ret = __v4l2_ctrl_handler_setup(hdl); - mutex_unlock(hdl->lock); - - return ret; -} -EXPORT_SYMBOL(v4l2_ctrl_handler_setup); - -/* Implement VIDIOC_QUERY_EXT_CTRL */ -int v4l2_query_ext_ctrl(struct v4l2_ctrl_handler *hdl, struct v4l2_query_ext_ctrl *qc) -{ - const unsigned next_flags = V4L2_CTRL_FLAG_NEXT_CTRL | V4L2_CTRL_FLAG_NEXT_COMPOUND; - u32 id = qc->id & V4L2_CTRL_ID_MASK; - struct v4l2_ctrl_ref *ref; - struct v4l2_ctrl *ctrl; - - if (hdl == NULL) - return -EINVAL; - - mutex_lock(hdl->lock); - - /* Try to find it */ - ref = find_ref(hdl, id); - - if ((qc->id & next_flags) && !list_empty(&hdl->ctrl_refs)) { - bool is_compound; - /* Match any control that is not hidden */ - unsigned mask = 1; - bool match = false; - - if ((qc->id & next_flags) == V4L2_CTRL_FLAG_NEXT_COMPOUND) { - /* Match any hidden control */ - match = true; - } else if ((qc->id & next_flags) == next_flags) { - /* Match any control, compound or not */ - mask = 0; - } - - /* Find the next control with ID > qc->id */ - - /* Did we reach the end of the control list? */ - if (id >= node2id(hdl->ctrl_refs.prev)) { - ref = NULL; /* Yes, so there is no next control */ - } else if (ref) { - /* We found a control with the given ID, so just get - the next valid one in the list. */ - list_for_each_entry_continue(ref, &hdl->ctrl_refs, node) { - is_compound = ref->ctrl->is_array || - ref->ctrl->type >= V4L2_CTRL_COMPOUND_TYPES; - if (id < ref->ctrl->id && - (is_compound & mask) == match) - break; - } - if (&ref->node == &hdl->ctrl_refs) - ref = NULL; - } else { - /* No control with the given ID exists, so start - searching for the next largest ID. We know there - is one, otherwise the first 'if' above would have - been true. */ - list_for_each_entry(ref, &hdl->ctrl_refs, node) { - is_compound = ref->ctrl->is_array || - ref->ctrl->type >= V4L2_CTRL_COMPOUND_TYPES; - if (id < ref->ctrl->id && - (is_compound & mask) == match) - break; - } - if (&ref->node == &hdl->ctrl_refs) - ref = NULL; - } - } - mutex_unlock(hdl->lock); - - if (!ref) - return -EINVAL; - - ctrl = ref->ctrl; - memset(qc, 0, sizeof(*qc)); - if (id >= V4L2_CID_PRIVATE_BASE) - qc->id = id; - else - qc->id = ctrl->id; - strscpy(qc->name, ctrl->name, sizeof(qc->name)); - qc->flags = user_flags(ctrl); - qc->type = ctrl->type; - qc->elem_size = ctrl->elem_size; - qc->elems = ctrl->elems; - qc->nr_of_dims = ctrl->nr_of_dims; - memcpy(qc->dims, ctrl->dims, qc->nr_of_dims * sizeof(qc->dims[0])); - qc->minimum = ctrl->minimum; - qc->maximum = ctrl->maximum; - qc->default_value = ctrl->default_value; - if (ctrl->type == V4L2_CTRL_TYPE_MENU - || ctrl->type == V4L2_CTRL_TYPE_INTEGER_MENU) - qc->step = 1; - else - qc->step = ctrl->step; - return 0; -} -EXPORT_SYMBOL(v4l2_query_ext_ctrl); - -/* Implement VIDIOC_QUERYCTRL */ -int v4l2_queryctrl(struct v4l2_ctrl_handler *hdl, struct v4l2_queryctrl *qc) -{ - struct v4l2_query_ext_ctrl qec = { qc->id }; - int rc; - - rc = v4l2_query_ext_ctrl(hdl, &qec); - if (rc) - return rc; - - qc->id = qec.id; - qc->type = qec.type; - qc->flags = qec.flags; - strscpy(qc->name, qec.name, sizeof(qc->name)); - switch (qc->type) { - case V4L2_CTRL_TYPE_INTEGER: - case V4L2_CTRL_TYPE_BOOLEAN: - case V4L2_CTRL_TYPE_MENU: - case V4L2_CTRL_TYPE_INTEGER_MENU: - case V4L2_CTRL_TYPE_STRING: - case V4L2_CTRL_TYPE_BITMASK: - qc->minimum = qec.minimum; - qc->maximum = qec.maximum; - qc->step = qec.step; - qc->default_value = qec.default_value; - break; - default: - qc->minimum = 0; - qc->maximum = 0; - qc->step = 0; - qc->default_value = 0; - break; - } - return 0; -} -EXPORT_SYMBOL(v4l2_queryctrl); - -/* Implement VIDIOC_QUERYMENU */ -int v4l2_querymenu(struct v4l2_ctrl_handler *hdl, struct v4l2_querymenu *qm) -{ - struct v4l2_ctrl *ctrl; - u32 i = qm->index; - - ctrl = v4l2_ctrl_find(hdl, qm->id); - if (!ctrl) - return -EINVAL; - - qm->reserved = 0; - /* Sanity checks */ - switch (ctrl->type) { - case V4L2_CTRL_TYPE_MENU: - if (ctrl->qmenu == NULL) - return -EINVAL; - break; - case V4L2_CTRL_TYPE_INTEGER_MENU: - if (ctrl->qmenu_int == NULL) - return -EINVAL; - break; - default: - return -EINVAL; - } - - if (i < ctrl->minimum || i > ctrl->maximum) - return -EINVAL; - - /* Use mask to see if this menu item should be skipped */ - if (ctrl->menu_skip_mask & (1ULL << i)) - return -EINVAL; - /* Empty menu items should also be skipped */ - if (ctrl->type == V4L2_CTRL_TYPE_MENU) { - if (ctrl->qmenu[i] == NULL || ctrl->qmenu[i][0] == '\0') - return -EINVAL; - strscpy(qm->name, ctrl->qmenu[i], sizeof(qm->name)); - } else { - qm->value = ctrl->qmenu_int[i]; - } - return 0; -} -EXPORT_SYMBOL(v4l2_querymenu); - -static int v4l2_ctrl_request_clone(struct v4l2_ctrl_handler *hdl, - const struct v4l2_ctrl_handler *from) -{ - struct v4l2_ctrl_ref *ref; - int err = 0; - - if (WARN_ON(!hdl || hdl == from)) - return -EINVAL; - - if (hdl->error) - return hdl->error; - - WARN_ON(hdl->lock != &hdl->_lock); - - mutex_lock(from->lock); - list_for_each_entry(ref, &from->ctrl_refs, node) { - struct v4l2_ctrl *ctrl = ref->ctrl; - struct v4l2_ctrl_ref *new_ref; - - /* Skip refs inherited from other devices */ - if (ref->from_other_dev) - continue; - err = handler_new_ref(hdl, ctrl, &new_ref, false, true); - if (err) - break; - } - mutex_unlock(from->lock); - return err; -} - -static void v4l2_ctrl_request_queue(struct media_request_object *obj) -{ - struct v4l2_ctrl_handler *hdl = - container_of(obj, struct v4l2_ctrl_handler, req_obj); - struct v4l2_ctrl_handler *main_hdl = obj->priv; - - mutex_lock(main_hdl->lock); - list_add_tail(&hdl->requests_queued, &main_hdl->requests_queued); - hdl->request_is_queued = true; - mutex_unlock(main_hdl->lock); -} - -static void v4l2_ctrl_request_unbind(struct media_request_object *obj) -{ - struct v4l2_ctrl_handler *hdl = - container_of(obj, struct v4l2_ctrl_handler, req_obj); - struct v4l2_ctrl_handler *main_hdl = obj->priv; - - mutex_lock(main_hdl->lock); - list_del_init(&hdl->requests); - if (hdl->request_is_queued) { - list_del_init(&hdl->requests_queued); - hdl->request_is_queued = false; - } - mutex_unlock(main_hdl->lock); -} - -static void v4l2_ctrl_request_release(struct media_request_object *obj) -{ - struct v4l2_ctrl_handler *hdl = - container_of(obj, struct v4l2_ctrl_handler, req_obj); - - v4l2_ctrl_handler_free(hdl); - kfree(hdl); -} - -static const struct media_request_object_ops req_ops = { - .queue = v4l2_ctrl_request_queue, - .unbind = v4l2_ctrl_request_unbind, - .release = v4l2_ctrl_request_release, -}; - -struct v4l2_ctrl_handler *v4l2_ctrl_request_hdl_find(struct media_request *req, - struct v4l2_ctrl_handler *parent) -{ - struct media_request_object *obj; - - if (WARN_ON(req->state != MEDIA_REQUEST_STATE_VALIDATING && - req->state != MEDIA_REQUEST_STATE_QUEUED)) - return NULL; - - obj = media_request_object_find(req, &req_ops, parent); - if (obj) - return container_of(obj, struct v4l2_ctrl_handler, req_obj); - return NULL; -} -EXPORT_SYMBOL_GPL(v4l2_ctrl_request_hdl_find); - -struct v4l2_ctrl * -v4l2_ctrl_request_hdl_ctrl_find(struct v4l2_ctrl_handler *hdl, u32 id) -{ - struct v4l2_ctrl_ref *ref = find_ref_lock(hdl, id); - - return (ref && ref->valid_p_req) ? ref->ctrl : NULL; -} -EXPORT_SYMBOL_GPL(v4l2_ctrl_request_hdl_ctrl_find); - -static int v4l2_ctrl_request_bind(struct media_request *req, - struct v4l2_ctrl_handler *hdl, - struct v4l2_ctrl_handler *from) -{ - int ret; - - ret = v4l2_ctrl_request_clone(hdl, from); - - if (!ret) { - ret = media_request_object_bind(req, &req_ops, - from, false, &hdl->req_obj); - if (!ret) { - mutex_lock(from->lock); - list_add_tail(&hdl->requests, &from->requests); - mutex_unlock(from->lock); - } - } - return ret; -} - -/* Some general notes on the atomic requirements of VIDIOC_G/TRY/S_EXT_CTRLS: - - It is not a fully atomic operation, just best-effort only. After all, if - multiple controls have to be set through multiple i2c writes (for example) - then some initial writes may succeed while others fail. Thus leaving the - system in an inconsistent state. The question is how much effort you are - willing to spend on trying to make something atomic that really isn't. - - From the point of view of an application the main requirement is that - when you call VIDIOC_S_EXT_CTRLS and some values are invalid then an - error should be returned without actually affecting any controls. - - If all the values are correct, then it is acceptable to just give up - in case of low-level errors. - - It is important though that the application can tell when only a partial - configuration was done. The way we do that is through the error_idx field - of struct v4l2_ext_controls: if that is equal to the count field then no - controls were affected. Otherwise all controls before that index were - successful in performing their 'get' or 'set' operation, the control at - the given index failed, and you don't know what happened with the controls - after the failed one. Since if they were part of a control cluster they - could have been successfully processed (if a cluster member was encountered - at index < error_idx), they could have failed (if a cluster member was at - error_idx), or they may not have been processed yet (if the first cluster - member appeared after error_idx). - - It is all fairly theoretical, though. In practice all you can do is to - bail out. If error_idx == count, then it is an application bug. If - error_idx < count then it is only an application bug if the error code was - EBUSY. That usually means that something started streaming just when you - tried to set the controls. In all other cases it is a driver/hardware - problem and all you can do is to retry or bail out. - - Note that these rules do not apply to VIDIOC_TRY_EXT_CTRLS: since that - never modifies controls the error_idx is just set to whatever control - has an invalid value. - */ - -/* Prepare for the extended g/s/try functions. - Find the controls in the control array and do some basic checks. */ -static int prepare_ext_ctrls(struct v4l2_ctrl_handler *hdl, - struct v4l2_ext_controls *cs, - struct v4l2_ctrl_helper *helpers, - struct video_device *vdev, - bool get) -{ - struct v4l2_ctrl_helper *h; - bool have_clusters = false; - u32 i; - - for (i = 0, h = helpers; i < cs->count; i++, h++) { - struct v4l2_ext_control *c = &cs->controls[i]; - struct v4l2_ctrl_ref *ref; - struct v4l2_ctrl *ctrl; - u32 id = c->id & V4L2_CTRL_ID_MASK; - - cs->error_idx = i; - - if (cs->which && - cs->which != V4L2_CTRL_WHICH_DEF_VAL && - cs->which != V4L2_CTRL_WHICH_REQUEST_VAL && - V4L2_CTRL_ID2WHICH(id) != cs->which) { - dprintk(vdev, - "invalid which 0x%x or control id 0x%x\n", - cs->which, id); - return -EINVAL; - } - - /* Old-style private controls are not allowed for - extended controls */ - if (id >= V4L2_CID_PRIVATE_BASE) { - dprintk(vdev, - "old-style private controls not allowed\n"); - return -EINVAL; - } - ref = find_ref_lock(hdl, id); - if (ref == NULL) { - dprintk(vdev, "cannot find control id 0x%x\n", id); - return -EINVAL; - } - h->ref = ref; - ctrl = ref->ctrl; - if (ctrl->flags & V4L2_CTRL_FLAG_DISABLED) { - dprintk(vdev, "control id 0x%x is disabled\n", id); - return -EINVAL; - } - - if (ctrl->cluster[0]->ncontrols > 1) - have_clusters = true; - if (ctrl->cluster[0] != ctrl) - ref = find_ref_lock(hdl, ctrl->cluster[0]->id); - if (ctrl->is_ptr && !ctrl->is_string) { - unsigned tot_size = ctrl->elems * ctrl->elem_size; - - if (c->size < tot_size) { - /* - * In the get case the application first - * queries to obtain the size of the control. - */ - if (get) { - c->size = tot_size; - return -ENOSPC; - } - dprintk(vdev, - "pointer control id 0x%x size too small, %d bytes but %d bytes needed\n", - id, c->size, tot_size); - return -EFAULT; - } - c->size = tot_size; - } - /* Store the ref to the master control of the cluster */ - h->mref = ref; - /* Initially set next to 0, meaning that there is no other - control in this helper array belonging to the same - cluster */ - h->next = 0; - } - - /* We are done if there were no controls that belong to a multi- - control cluster. */ - if (!have_clusters) - return 0; - - /* The code below figures out in O(n) time which controls in the list - belong to the same cluster. */ - - /* This has to be done with the handler lock taken. */ - mutex_lock(hdl->lock); - - /* First zero the helper field in the master control references */ - for (i = 0; i < cs->count; i++) - helpers[i].mref->helper = NULL; - for (i = 0, h = helpers; i < cs->count; i++, h++) { - struct v4l2_ctrl_ref *mref = h->mref; - - /* If the mref->helper is set, then it points to an earlier - helper that belongs to the same cluster. */ - if (mref->helper) { - /* Set the next field of mref->helper to the current - index: this means that that earlier helper now - points to the next helper in the same cluster. */ - mref->helper->next = i; - /* mref should be set only for the first helper in the - cluster, clear the others. */ - h->mref = NULL; - } - /* Point the mref helper to the current helper struct. */ - mref->helper = h; - } - mutex_unlock(hdl->lock); - return 0; -} - -/* Handles the corner case where cs->count == 0. It checks whether the - specified control class exists. If that class ID is 0, then it checks - whether there are any controls at all. */ -static int class_check(struct v4l2_ctrl_handler *hdl, u32 which) -{ - if (which == 0 || which == V4L2_CTRL_WHICH_DEF_VAL || - which == V4L2_CTRL_WHICH_REQUEST_VAL) - return 0; - return find_ref_lock(hdl, which | 1) ? 0 : -EINVAL; -} - -/* - * Get extended controls. Allocates the helpers array if needed. - * - * Note that v4l2_g_ext_ctrls_common() with 'which' set to - * V4L2_CTRL_WHICH_REQUEST_VAL is only called if the request was - * completed, and in that case valid_p_req is true for all controls. - */ -static int v4l2_g_ext_ctrls_common(struct v4l2_ctrl_handler *hdl, - struct v4l2_ext_controls *cs, - struct video_device *vdev) -{ - struct v4l2_ctrl_helper helper[4]; - struct v4l2_ctrl_helper *helpers = helper; - int ret; - int i, j; - bool is_default, is_request; - - is_default = (cs->which == V4L2_CTRL_WHICH_DEF_VAL); - is_request = (cs->which == V4L2_CTRL_WHICH_REQUEST_VAL); - - cs->error_idx = cs->count; - cs->which = V4L2_CTRL_ID2WHICH(cs->which); - - if (hdl == NULL) - return -EINVAL; - - if (cs->count == 0) - return class_check(hdl, cs->which); - - if (cs->count > ARRAY_SIZE(helper)) { - helpers = kvmalloc_array(cs->count, sizeof(helper[0]), - GFP_KERNEL); - if (helpers == NULL) - return -ENOMEM; - } - - ret = prepare_ext_ctrls(hdl, cs, helpers, vdev, true); - cs->error_idx = cs->count; - - for (i = 0; !ret && i < cs->count; i++) - if (helpers[i].ref->ctrl->flags & V4L2_CTRL_FLAG_WRITE_ONLY) - ret = -EACCES; - - for (i = 0; !ret && i < cs->count; i++) { - struct v4l2_ctrl *master; - bool is_volatile = false; - u32 idx = i; - - if (helpers[i].mref == NULL) - continue; - - master = helpers[i].mref->ctrl; - cs->error_idx = i; - - v4l2_ctrl_lock(master); - - /* - * g_volatile_ctrl will update the new control values. - * This makes no sense for V4L2_CTRL_WHICH_DEF_VAL and - * V4L2_CTRL_WHICH_REQUEST_VAL. In the case of requests - * it is v4l2_ctrl_request_complete() that copies the - * volatile controls at the time of request completion - * to the request, so you don't want to do that again. - */ - if (!is_default && !is_request && - ((master->flags & V4L2_CTRL_FLAG_VOLATILE) || - (master->has_volatiles && !is_cur_manual(master)))) { - for (j = 0; j < master->ncontrols; j++) - cur_to_new(master->cluster[j]); - ret = call_op(master, g_volatile_ctrl); - is_volatile = true; - } - - if (ret) { - v4l2_ctrl_unlock(master); - break; - } - - /* - * Copy the default value (if is_default is true), the - * request value (if is_request is true and p_req is valid), - * the new volatile value (if is_volatile is true) or the - * current value. - */ - do { - struct v4l2_ctrl_ref *ref = helpers[idx].ref; - - if (is_default) - ret = def_to_user(cs->controls + idx, ref->ctrl); - else if (is_request && ref->valid_p_req) - ret = req_to_user(cs->controls + idx, ref); - else if (is_volatile) - ret = new_to_user(cs->controls + idx, ref->ctrl); - else - ret = cur_to_user(cs->controls + idx, ref->ctrl); - idx = helpers[idx].next; - } while (!ret && idx); - - v4l2_ctrl_unlock(master); - } - - if (cs->count > ARRAY_SIZE(helper)) - kvfree(helpers); - return ret; -} - -static struct media_request_object * -v4l2_ctrls_find_req_obj(struct v4l2_ctrl_handler *hdl, - struct media_request *req, bool set) -{ - struct media_request_object *obj; - struct v4l2_ctrl_handler *new_hdl; - int ret; - - if (IS_ERR(req)) - return ERR_CAST(req); - - if (set && WARN_ON(req->state != MEDIA_REQUEST_STATE_UPDATING)) - return ERR_PTR(-EBUSY); - - obj = media_request_object_find(req, &req_ops, hdl); - if (obj) - return obj; - if (!set) - return ERR_PTR(-ENOENT); - - new_hdl = kzalloc(sizeof(*new_hdl), GFP_KERNEL); - if (!new_hdl) - return ERR_PTR(-ENOMEM); - - obj = &new_hdl->req_obj; - ret = v4l2_ctrl_handler_init(new_hdl, (hdl->nr_of_buckets - 1) * 8); - if (!ret) - ret = v4l2_ctrl_request_bind(req, new_hdl, hdl); - if (ret) { - kfree(new_hdl); - - return ERR_PTR(ret); - } - - media_request_object_get(obj); - return obj; -} - -int v4l2_g_ext_ctrls(struct v4l2_ctrl_handler *hdl, struct video_device *vdev, - struct media_device *mdev, struct v4l2_ext_controls *cs) -{ - struct media_request_object *obj = NULL; - struct media_request *req = NULL; - int ret; - - if (cs->which == V4L2_CTRL_WHICH_REQUEST_VAL) { - if (!mdev || cs->request_fd < 0) - return -EINVAL; - - req = media_request_get_by_fd(mdev, cs->request_fd); - if (IS_ERR(req)) - return PTR_ERR(req); - - if (req->state != MEDIA_REQUEST_STATE_COMPLETE) { - media_request_put(req); - return -EACCES; - } - - ret = media_request_lock_for_access(req); - if (ret) { - media_request_put(req); - return ret; - } - - obj = v4l2_ctrls_find_req_obj(hdl, req, false); - if (IS_ERR(obj)) { - media_request_unlock_for_access(req); - media_request_put(req); - return PTR_ERR(obj); - } - - hdl = container_of(obj, struct v4l2_ctrl_handler, - req_obj); - } - - ret = v4l2_g_ext_ctrls_common(hdl, cs, vdev); - - if (obj) { - media_request_unlock_for_access(req); - media_request_object_put(obj); - media_request_put(req); - } - return ret; -} -EXPORT_SYMBOL(v4l2_g_ext_ctrls); - -/* Helper function to get a single control */ -static int get_ctrl(struct v4l2_ctrl *ctrl, struct v4l2_ext_control *c) -{ - struct v4l2_ctrl *master = ctrl->cluster[0]; - int ret = 0; - int i; - - /* Compound controls are not supported. The new_to_user() and - * cur_to_user() calls below would need to be modified not to access - * userspace memory when called from get_ctrl(). - */ - if (!ctrl->is_int && ctrl->type != V4L2_CTRL_TYPE_INTEGER64) - return -EINVAL; - - if (ctrl->flags & V4L2_CTRL_FLAG_WRITE_ONLY) - return -EACCES; - - v4l2_ctrl_lock(master); - /* g_volatile_ctrl will update the current control values */ - if (ctrl->flags & V4L2_CTRL_FLAG_VOLATILE) { - for (i = 0; i < master->ncontrols; i++) - cur_to_new(master->cluster[i]); - ret = call_op(master, g_volatile_ctrl); - new_to_user(c, ctrl); - } else { - cur_to_user(c, ctrl); - } - v4l2_ctrl_unlock(master); - return ret; -} - -int v4l2_g_ctrl(struct v4l2_ctrl_handler *hdl, struct v4l2_control *control) -{ - struct v4l2_ctrl *ctrl = v4l2_ctrl_find(hdl, control->id); - struct v4l2_ext_control c; - int ret; - - if (ctrl == NULL || !ctrl->is_int) - return -EINVAL; - ret = get_ctrl(ctrl, &c); - control->value = c.value; - return ret; -} -EXPORT_SYMBOL(v4l2_g_ctrl); - -s32 v4l2_ctrl_g_ctrl(struct v4l2_ctrl *ctrl) -{ - struct v4l2_ext_control c; - - /* It's a driver bug if this happens. */ - if (WARN_ON(!ctrl->is_int)) - return 0; - c.value = 0; - get_ctrl(ctrl, &c); - return c.value; -} -EXPORT_SYMBOL(v4l2_ctrl_g_ctrl); - -s64 v4l2_ctrl_g_ctrl_int64(struct v4l2_ctrl *ctrl) -{ - struct v4l2_ext_control c; - - /* It's a driver bug if this happens. */ - if (WARN_ON(ctrl->is_ptr || ctrl->type != V4L2_CTRL_TYPE_INTEGER64)) - return 0; - c.value64 = 0; - get_ctrl(ctrl, &c); - return c.value64; -} -EXPORT_SYMBOL(v4l2_ctrl_g_ctrl_int64); - - -/* Core function that calls try/s_ctrl and ensures that the new value is - copied to the current value on a set. - Must be called with ctrl->handler->lock held. */ -static int try_or_set_cluster(struct v4l2_fh *fh, struct v4l2_ctrl *master, - bool set, u32 ch_flags) -{ - bool update_flag; - int ret; - int i; - - /* Go through the cluster and either validate the new value or - (if no new value was set), copy the current value to the new - value, ensuring a consistent view for the control ops when - called. */ - for (i = 0; i < master->ncontrols; i++) { - struct v4l2_ctrl *ctrl = master->cluster[i]; - - if (ctrl == NULL) - continue; - - if (!ctrl->is_new) { - cur_to_new(ctrl); - continue; - } - /* Check again: it may have changed since the - previous check in try_or_set_ext_ctrls(). */ - if (set && (ctrl->flags & V4L2_CTRL_FLAG_GRABBED)) - return -EBUSY; - } - - ret = call_op(master, try_ctrl); - - /* Don't set if there is no change */ - if (ret || !set || !cluster_changed(master)) - return ret; - ret = call_op(master, s_ctrl); - if (ret) - return ret; - - /* If OK, then make the new values permanent. */ - update_flag = is_cur_manual(master) != is_new_manual(master); - - for (i = 0; i < master->ncontrols; i++) { - /* - * If we switch from auto to manual mode, and this cluster - * contains volatile controls, then all non-master controls - * have to be marked as changed. The 'new' value contains - * the volatile value (obtained by update_from_auto_cluster), - * which now has to become the current value. - */ - if (i && update_flag && is_new_manual(master) && - master->has_volatiles && master->cluster[i]) - master->cluster[i]->has_changed = true; - - new_to_cur(fh, master->cluster[i], ch_flags | - ((update_flag && i > 0) ? V4L2_EVENT_CTRL_CH_FLAGS : 0)); - } - return 0; -} - -/* Validate controls. */ -static int validate_ctrls(struct v4l2_ext_controls *cs, - struct v4l2_ctrl_helper *helpers, - struct video_device *vdev, - bool set) -{ - unsigned i; - int ret = 0; - - cs->error_idx = cs->count; - for (i = 0; i < cs->count; i++) { - struct v4l2_ctrl *ctrl = helpers[i].ref->ctrl; - union v4l2_ctrl_ptr p_new; - - cs->error_idx = i; - - if (ctrl->flags & V4L2_CTRL_FLAG_READ_ONLY) { - dprintk(vdev, - "control id 0x%x is read-only\n", - ctrl->id); - return -EACCES; - } - /* This test is also done in try_set_control_cluster() which - is called in atomic context, so that has the final say, - but it makes sense to do an up-front check as well. Once - an error occurs in try_set_control_cluster() some other - controls may have been set already and we want to do a - best-effort to avoid that. */ - if (set && (ctrl->flags & V4L2_CTRL_FLAG_GRABBED)) { - dprintk(vdev, - "control id 0x%x is grabbed, cannot set\n", - ctrl->id); - return -EBUSY; - } - /* - * Skip validation for now if the payload needs to be copied - * from userspace into kernelspace. We'll validate those later. - */ - if (ctrl->is_ptr) - continue; - if (ctrl->type == V4L2_CTRL_TYPE_INTEGER64) - p_new.p_s64 = &cs->controls[i].value64; - else - p_new.p_s32 = &cs->controls[i].value; - ret = validate_new(ctrl, p_new); - if (ret) - return ret; - } - return 0; -} - -/* Obtain the current volatile values of an autocluster and mark them - as new. */ -static void update_from_auto_cluster(struct v4l2_ctrl *master) -{ - int i; - - for (i = 1; i < master->ncontrols; i++) - cur_to_new(master->cluster[i]); - if (!call_op(master, g_volatile_ctrl)) - for (i = 1; i < master->ncontrols; i++) - if (master->cluster[i]) - master->cluster[i]->is_new = 1; -} - -/* Try or try-and-set controls */ -static int try_set_ext_ctrls_common(struct v4l2_fh *fh, - struct v4l2_ctrl_handler *hdl, - struct v4l2_ext_controls *cs, - struct video_device *vdev, bool set) -{ - struct v4l2_ctrl_helper helper[4]; - struct v4l2_ctrl_helper *helpers = helper; - unsigned i, j; - int ret; - - cs->error_idx = cs->count; - - /* Default value cannot be changed */ - if (cs->which == V4L2_CTRL_WHICH_DEF_VAL) { - dprintk(vdev, "%s: cannot change default value\n", - video_device_node_name(vdev)); - return -EINVAL; - } - - cs->which = V4L2_CTRL_ID2WHICH(cs->which); - - if (hdl == NULL) { - dprintk(vdev, "%s: invalid null control handler\n", - video_device_node_name(vdev)); - return -EINVAL; - } - - if (cs->count == 0) - return class_check(hdl, cs->which); - - if (cs->count > ARRAY_SIZE(helper)) { - helpers = kvmalloc_array(cs->count, sizeof(helper[0]), - GFP_KERNEL); - if (!helpers) - return -ENOMEM; - } - ret = prepare_ext_ctrls(hdl, cs, helpers, vdev, false); - if (!ret) - ret = validate_ctrls(cs, helpers, vdev, set); - if (ret && set) - cs->error_idx = cs->count; - for (i = 0; !ret && i < cs->count; i++) { - struct v4l2_ctrl *master; - u32 idx = i; - - if (helpers[i].mref == NULL) - continue; - - cs->error_idx = i; - master = helpers[i].mref->ctrl; - v4l2_ctrl_lock(master); - - /* Reset the 'is_new' flags of the cluster */ - for (j = 0; j < master->ncontrols; j++) - if (master->cluster[j]) - master->cluster[j]->is_new = 0; - - /* For volatile autoclusters that are currently in auto mode - we need to discover if it will be set to manual mode. - If so, then we have to copy the current volatile values - first since those will become the new manual values (which - may be overwritten by explicit new values from this set - of controls). */ - if (master->is_auto && master->has_volatiles && - !is_cur_manual(master)) { - /* Pick an initial non-manual value */ - s32 new_auto_val = master->manual_mode_value + 1; - u32 tmp_idx = idx; - - do { - /* Check if the auto control is part of the - list, and remember the new value. */ - if (helpers[tmp_idx].ref->ctrl == master) - new_auto_val = cs->controls[tmp_idx].value; - tmp_idx = helpers[tmp_idx].next; - } while (tmp_idx); - /* If the new value == the manual value, then copy - the current volatile values. */ - if (new_auto_val == master->manual_mode_value) - update_from_auto_cluster(master); - } - - /* Copy the new caller-supplied control values. - user_to_new() sets 'is_new' to 1. */ - do { - struct v4l2_ctrl *ctrl = helpers[idx].ref->ctrl; - - ret = user_to_new(cs->controls + idx, ctrl); - if (!ret && ctrl->is_ptr) { - ret = validate_new(ctrl, ctrl->p_new); - if (ret) - dprintk(vdev, - "failed to validate control %s (%d)\n", - v4l2_ctrl_get_name(ctrl->id), ret); - } - idx = helpers[idx].next; - } while (!ret && idx); - - if (!ret) - ret = try_or_set_cluster(fh, master, - !hdl->req_obj.req && set, 0); - if (!ret && hdl->req_obj.req && set) { - for (j = 0; j < master->ncontrols; j++) { - struct v4l2_ctrl_ref *ref = - find_ref(hdl, master->cluster[j]->id); - - new_to_req(ref); - } - } - - /* Copy the new values back to userspace. */ - if (!ret) { - idx = i; - do { - ret = new_to_user(cs->controls + idx, - helpers[idx].ref->ctrl); - idx = helpers[idx].next; - } while (!ret && idx); - } - v4l2_ctrl_unlock(master); - } - - if (cs->count > ARRAY_SIZE(helper)) - kvfree(helpers); - return ret; -} - -static int try_set_ext_ctrls(struct v4l2_fh *fh, - struct v4l2_ctrl_handler *hdl, - struct video_device *vdev, - struct media_device *mdev, - struct v4l2_ext_controls *cs, bool set) -{ - struct media_request_object *obj = NULL; - struct media_request *req = NULL; - int ret; - - if (cs->which == V4L2_CTRL_WHICH_REQUEST_VAL) { - if (!mdev) { - dprintk(vdev, "%s: missing media device\n", - video_device_node_name(vdev)); - return -EINVAL; - } - - if (cs->request_fd < 0) { - dprintk(vdev, "%s: invalid request fd %d\n", - video_device_node_name(vdev), cs->request_fd); - return -EINVAL; - } - - req = media_request_get_by_fd(mdev, cs->request_fd); - if (IS_ERR(req)) { - dprintk(vdev, "%s: cannot find request fd %d\n", - video_device_node_name(vdev), cs->request_fd); - return PTR_ERR(req); - } - - ret = media_request_lock_for_update(req); - if (ret) { - dprintk(vdev, "%s: cannot lock request fd %d\n", - video_device_node_name(vdev), cs->request_fd); - media_request_put(req); - return ret; - } - - obj = v4l2_ctrls_find_req_obj(hdl, req, set); - if (IS_ERR(obj)) { - dprintk(vdev, - "%s: cannot find request object for request fd %d\n", - video_device_node_name(vdev), - cs->request_fd); - media_request_unlock_for_update(req); - media_request_put(req); - return PTR_ERR(obj); - } - hdl = container_of(obj, struct v4l2_ctrl_handler, - req_obj); - } - - ret = try_set_ext_ctrls_common(fh, hdl, cs, vdev, set); - if (ret) - dprintk(vdev, - "%s: try_set_ext_ctrls_common failed (%d)\n", - video_device_node_name(vdev), ret); - - if (obj) { - media_request_unlock_for_update(req); - media_request_object_put(obj); - media_request_put(req); - } - - return ret; -} - -int v4l2_try_ext_ctrls(struct v4l2_ctrl_handler *hdl, - struct video_device *vdev, - struct media_device *mdev, - struct v4l2_ext_controls *cs) -{ - return try_set_ext_ctrls(NULL, hdl, vdev, mdev, cs, false); -} -EXPORT_SYMBOL(v4l2_try_ext_ctrls); - -int v4l2_s_ext_ctrls(struct v4l2_fh *fh, - struct v4l2_ctrl_handler *hdl, - struct video_device *vdev, - struct media_device *mdev, - struct v4l2_ext_controls *cs) -{ - return try_set_ext_ctrls(fh, hdl, vdev, mdev, cs, true); -} -EXPORT_SYMBOL(v4l2_s_ext_ctrls); - -/* Helper function for VIDIOC_S_CTRL compatibility */ -static int set_ctrl(struct v4l2_fh *fh, struct v4l2_ctrl *ctrl, u32 ch_flags) -{ - struct v4l2_ctrl *master = ctrl->cluster[0]; - int ret; - int i; - - /* Reset the 'is_new' flags of the cluster */ - for (i = 0; i < master->ncontrols; i++) - if (master->cluster[i]) - master->cluster[i]->is_new = 0; - - ret = validate_new(ctrl, ctrl->p_new); - if (ret) - return ret; - - /* For autoclusters with volatiles that are switched from auto to - manual mode we have to update the current volatile values since - those will become the initial manual values after such a switch. */ - if (master->is_auto && master->has_volatiles && ctrl == master && - !is_cur_manual(master) && ctrl->val == master->manual_mode_value) - update_from_auto_cluster(master); - - ctrl->is_new = 1; - return try_or_set_cluster(fh, master, true, ch_flags); -} - -/* Helper function for VIDIOC_S_CTRL compatibility */ -static int set_ctrl_lock(struct v4l2_fh *fh, struct v4l2_ctrl *ctrl, - struct v4l2_ext_control *c) -{ - int ret; - - v4l2_ctrl_lock(ctrl); - user_to_new(c, ctrl); - ret = set_ctrl(fh, ctrl, 0); - if (!ret) - cur_to_user(c, ctrl); - v4l2_ctrl_unlock(ctrl); - return ret; -} - -int v4l2_s_ctrl(struct v4l2_fh *fh, struct v4l2_ctrl_handler *hdl, - struct v4l2_control *control) -{ - struct v4l2_ctrl *ctrl = v4l2_ctrl_find(hdl, control->id); - struct v4l2_ext_control c = { control->id }; - int ret; - - if (ctrl == NULL || !ctrl->is_int) - return -EINVAL; - - if (ctrl->flags & V4L2_CTRL_FLAG_READ_ONLY) - return -EACCES; - - c.value = control->value; - ret = set_ctrl_lock(fh, ctrl, &c); - control->value = c.value; - return ret; -} -EXPORT_SYMBOL(v4l2_s_ctrl); - -int __v4l2_ctrl_s_ctrl(struct v4l2_ctrl *ctrl, s32 val) -{ - lockdep_assert_held(ctrl->handler->lock); - - /* It's a driver bug if this happens. */ - if (WARN_ON(!ctrl->is_int)) - return -EINVAL; - ctrl->val = val; - return set_ctrl(NULL, ctrl, 0); -} -EXPORT_SYMBOL(__v4l2_ctrl_s_ctrl); - -int __v4l2_ctrl_s_ctrl_int64(struct v4l2_ctrl *ctrl, s64 val) -{ - lockdep_assert_held(ctrl->handler->lock); - - /* It's a driver bug if this happens. */ - if (WARN_ON(ctrl->is_ptr || ctrl->type != V4L2_CTRL_TYPE_INTEGER64)) - return -EINVAL; - *ctrl->p_new.p_s64 = val; - return set_ctrl(NULL, ctrl, 0); -} -EXPORT_SYMBOL(__v4l2_ctrl_s_ctrl_int64); - -int __v4l2_ctrl_s_ctrl_string(struct v4l2_ctrl *ctrl, const char *s) -{ - lockdep_assert_held(ctrl->handler->lock); - - /* It's a driver bug if this happens. */ - if (WARN_ON(ctrl->type != V4L2_CTRL_TYPE_STRING)) - return -EINVAL; - strscpy(ctrl->p_new.p_char, s, ctrl->maximum + 1); - return set_ctrl(NULL, ctrl, 0); -} -EXPORT_SYMBOL(__v4l2_ctrl_s_ctrl_string); - -int __v4l2_ctrl_s_ctrl_compound(struct v4l2_ctrl *ctrl, - enum v4l2_ctrl_type type, const void *p) -{ - lockdep_assert_held(ctrl->handler->lock); - - /* It's a driver bug if this happens. */ - if (WARN_ON(ctrl->type != type)) - return -EINVAL; - memcpy(ctrl->p_new.p, p, ctrl->elems * ctrl->elem_size); - return set_ctrl(NULL, ctrl, 0); -} -EXPORT_SYMBOL(__v4l2_ctrl_s_ctrl_compound); - -void v4l2_ctrl_request_complete(struct media_request *req, - struct v4l2_ctrl_handler *main_hdl) -{ - struct media_request_object *obj; - struct v4l2_ctrl_handler *hdl; - struct v4l2_ctrl_ref *ref; - - if (!req || !main_hdl) - return; - - /* - * Note that it is valid if nothing was found. It means - * that this request doesn't have any controls and so just - * wants to leave the controls unchanged. - */ - obj = media_request_object_find(req, &req_ops, main_hdl); - if (!obj) - return; - hdl = container_of(obj, struct v4l2_ctrl_handler, req_obj); - - list_for_each_entry(ref, &hdl->ctrl_refs, node) { - struct v4l2_ctrl *ctrl = ref->ctrl; - struct v4l2_ctrl *master = ctrl->cluster[0]; - unsigned int i; - - if (ctrl->flags & V4L2_CTRL_FLAG_VOLATILE) { - v4l2_ctrl_lock(master); - /* g_volatile_ctrl will update the current control values */ - for (i = 0; i < master->ncontrols; i++) - cur_to_new(master->cluster[i]); - call_op(master, g_volatile_ctrl); - new_to_req(ref); - v4l2_ctrl_unlock(master); - continue; - } - if (ref->valid_p_req) - continue; - - /* Copy the current control value into the request */ - v4l2_ctrl_lock(ctrl); - cur_to_req(ref); - v4l2_ctrl_unlock(ctrl); - } - - mutex_lock(main_hdl->lock); - WARN_ON(!hdl->request_is_queued); - list_del_init(&hdl->requests_queued); - hdl->request_is_queued = false; - mutex_unlock(main_hdl->lock); - media_request_object_complete(obj); - media_request_object_put(obj); -} -EXPORT_SYMBOL(v4l2_ctrl_request_complete); - -int v4l2_ctrl_request_setup(struct media_request *req, - struct v4l2_ctrl_handler *main_hdl) -{ - struct media_request_object *obj; - struct v4l2_ctrl_handler *hdl; - struct v4l2_ctrl_ref *ref; - int ret = 0; - - if (!req || !main_hdl) - return 0; - - if (WARN_ON(req->state != MEDIA_REQUEST_STATE_QUEUED)) - return -EBUSY; - - /* - * Note that it is valid if nothing was found. It means - * that this request doesn't have any controls and so just - * wants to leave the controls unchanged. - */ - obj = media_request_object_find(req, &req_ops, main_hdl); - if (!obj) - return 0; - if (obj->completed) { - media_request_object_put(obj); - return -EBUSY; - } - hdl = container_of(obj, struct v4l2_ctrl_handler, req_obj); - - list_for_each_entry(ref, &hdl->ctrl_refs, node) - ref->req_done = false; - - list_for_each_entry(ref, &hdl->ctrl_refs, node) { - struct v4l2_ctrl *ctrl = ref->ctrl; - struct v4l2_ctrl *master = ctrl->cluster[0]; - bool have_new_data = false; - int i; - - /* - * Skip if this control was already handled by a cluster. - * Skip button controls and read-only controls. - */ - if (ref->req_done || (ctrl->flags & V4L2_CTRL_FLAG_READ_ONLY)) - continue; - - v4l2_ctrl_lock(master); - for (i = 0; i < master->ncontrols; i++) { - if (master->cluster[i]) { - struct v4l2_ctrl_ref *r = - find_ref(hdl, master->cluster[i]->id); - - if (r->valid_p_req) { - have_new_data = true; - break; - } - } - } - if (!have_new_data) { - v4l2_ctrl_unlock(master); - continue; - } - - for (i = 0; i < master->ncontrols; i++) { - if (master->cluster[i]) { - struct v4l2_ctrl_ref *r = - find_ref(hdl, master->cluster[i]->id); - - req_to_new(r); - master->cluster[i]->is_new = 1; - r->req_done = true; - } - } - /* - * For volatile autoclusters that are currently in auto mode - * we need to discover if it will be set to manual mode. - * If so, then we have to copy the current volatile values - * first since those will become the new manual values (which - * may be overwritten by explicit new values from this set - * of controls). - */ - if (master->is_auto && master->has_volatiles && - !is_cur_manual(master)) { - s32 new_auto_val = *master->p_new.p_s32; - - /* - * If the new value == the manual value, then copy - * the current volatile values. - */ - if (new_auto_val == master->manual_mode_value) - update_from_auto_cluster(master); - } - - ret = try_or_set_cluster(NULL, master, true, 0); - v4l2_ctrl_unlock(master); - - if (ret) - break; - } - - media_request_object_put(obj); - return ret; -} -EXPORT_SYMBOL(v4l2_ctrl_request_setup); - -void v4l2_ctrl_notify(struct v4l2_ctrl *ctrl, v4l2_ctrl_notify_fnc notify, void *priv) -{ - if (ctrl == NULL) - return; - if (notify == NULL) { - ctrl->call_notify = 0; - return; - } - if (WARN_ON(ctrl->handler->notify && ctrl->handler->notify != notify)) - return; - ctrl->handler->notify = notify; - ctrl->handler->notify_priv = priv; - ctrl->call_notify = 1; -} -EXPORT_SYMBOL(v4l2_ctrl_notify); - -int __v4l2_ctrl_modify_range(struct v4l2_ctrl *ctrl, - s64 min, s64 max, u64 step, s64 def) -{ - bool value_changed; - bool range_changed = false; - int ret; - - lockdep_assert_held(ctrl->handler->lock); - - switch (ctrl->type) { - case V4L2_CTRL_TYPE_INTEGER: - case V4L2_CTRL_TYPE_INTEGER64: - case V4L2_CTRL_TYPE_BOOLEAN: - case V4L2_CTRL_TYPE_MENU: - case V4L2_CTRL_TYPE_INTEGER_MENU: - case V4L2_CTRL_TYPE_BITMASK: - case V4L2_CTRL_TYPE_U8: - case V4L2_CTRL_TYPE_U16: - case V4L2_CTRL_TYPE_U32: - if (ctrl->is_array) - return -EINVAL; - ret = check_range(ctrl->type, min, max, step, def); - if (ret) - return ret; - break; - default: - return -EINVAL; - } - if ((ctrl->minimum != min) || (ctrl->maximum != max) || - (ctrl->step != step) || ctrl->default_value != def) { - range_changed = true; - ctrl->minimum = min; - ctrl->maximum = max; - ctrl->step = step; - ctrl->default_value = def; - } - cur_to_new(ctrl); - if (validate_new(ctrl, ctrl->p_new)) { - if (ctrl->type == V4L2_CTRL_TYPE_INTEGER64) - *ctrl->p_new.p_s64 = def; - else - *ctrl->p_new.p_s32 = def; - } - - if (ctrl->type == V4L2_CTRL_TYPE_INTEGER64) - value_changed = *ctrl->p_new.p_s64 != *ctrl->p_cur.p_s64; - else - value_changed = *ctrl->p_new.p_s32 != *ctrl->p_cur.p_s32; - if (value_changed) - ret = set_ctrl(NULL, ctrl, V4L2_EVENT_CTRL_CH_RANGE); - else if (range_changed) - send_event(NULL, ctrl, V4L2_EVENT_CTRL_CH_RANGE); - return ret; -} -EXPORT_SYMBOL(__v4l2_ctrl_modify_range); - -static int v4l2_ctrl_add_event(struct v4l2_subscribed_event *sev, unsigned elems) -{ - struct v4l2_ctrl *ctrl = v4l2_ctrl_find(sev->fh->ctrl_handler, sev->id); - - if (ctrl == NULL) - return -EINVAL; - - v4l2_ctrl_lock(ctrl); - list_add_tail(&sev->node, &ctrl->ev_subs); - if (ctrl->type != V4L2_CTRL_TYPE_CTRL_CLASS && - (sev->flags & V4L2_EVENT_SUB_FL_SEND_INITIAL)) { - struct v4l2_event ev; - u32 changes = V4L2_EVENT_CTRL_CH_FLAGS; - - if (!(ctrl->flags & V4L2_CTRL_FLAG_WRITE_ONLY)) - changes |= V4L2_EVENT_CTRL_CH_VALUE; - fill_event(&ev, ctrl, changes); - /* Mark the queue as active, allowing this initial - event to be accepted. */ - sev->elems = elems; - v4l2_event_queue_fh(sev->fh, &ev); - } - v4l2_ctrl_unlock(ctrl); - return 0; -} - -static void v4l2_ctrl_del_event(struct v4l2_subscribed_event *sev) -{ - struct v4l2_ctrl *ctrl = v4l2_ctrl_find(sev->fh->ctrl_handler, sev->id); - - if (ctrl == NULL) - return; - - v4l2_ctrl_lock(ctrl); - list_del(&sev->node); - v4l2_ctrl_unlock(ctrl); -} - -void v4l2_ctrl_replace(struct v4l2_event *old, const struct v4l2_event *new) -{ - u32 old_changes = old->u.ctrl.changes; - - old->u.ctrl = new->u.ctrl; - old->u.ctrl.changes |= old_changes; -} -EXPORT_SYMBOL(v4l2_ctrl_replace); - -void v4l2_ctrl_merge(const struct v4l2_event *old, struct v4l2_event *new) -{ - new->u.ctrl.changes |= old->u.ctrl.changes; -} -EXPORT_SYMBOL(v4l2_ctrl_merge); - -const struct v4l2_subscribed_event_ops v4l2_ctrl_sub_ev_ops = { - .add = v4l2_ctrl_add_event, - .del = v4l2_ctrl_del_event, - .replace = v4l2_ctrl_replace, - .merge = v4l2_ctrl_merge, -}; -EXPORT_SYMBOL(v4l2_ctrl_sub_ev_ops); - -int v4l2_ctrl_log_status(struct file *file, void *fh) -{ - struct video_device *vfd = video_devdata(file); - struct v4l2_fh *vfh = file->private_data; - - if (test_bit(V4L2_FL_USES_V4L2_FH, &vfd->flags) && vfd->v4l2_dev) - v4l2_ctrl_handler_log_status(vfh->ctrl_handler, - vfd->v4l2_dev->name); - return 0; -} -EXPORT_SYMBOL(v4l2_ctrl_log_status); - -int v4l2_ctrl_subscribe_event(struct v4l2_fh *fh, - const struct v4l2_event_subscription *sub) -{ - if (sub->type == V4L2_EVENT_CTRL) - return v4l2_event_subscribe(fh, sub, 0, &v4l2_ctrl_sub_ev_ops); - return -EINVAL; -} -EXPORT_SYMBOL(v4l2_ctrl_subscribe_event); - -int v4l2_ctrl_subdev_subscribe_event(struct v4l2_subdev *sd, struct v4l2_fh *fh, - struct v4l2_event_subscription *sub) -{ - if (!sd->ctrl_handler) - return -EINVAL; - return v4l2_ctrl_subscribe_event(fh, sub); -} -EXPORT_SYMBOL(v4l2_ctrl_subdev_subscribe_event); - -__poll_t v4l2_ctrl_poll(struct file *file, struct poll_table_struct *wait) -{ - struct v4l2_fh *fh = file->private_data; - - poll_wait(file, &fh->wait, wait); - if (v4l2_event_pending(fh)) - return EPOLLPRI; - return 0; -} -EXPORT_SYMBOL(v4l2_ctrl_poll); - -int v4l2_ctrl_new_fwnode_properties(struct v4l2_ctrl_handler *hdl, - const struct v4l2_ctrl_ops *ctrl_ops, - const struct v4l2_fwnode_device_properties *p) -{ - if (p->orientation != V4L2_FWNODE_PROPERTY_UNSET) { - u32 orientation_ctrl; - - switch (p->orientation) { - case V4L2_FWNODE_ORIENTATION_FRONT: - orientation_ctrl = V4L2_CAMERA_ORIENTATION_FRONT; - break; - case V4L2_FWNODE_ORIENTATION_BACK: - orientation_ctrl = V4L2_CAMERA_ORIENTATION_BACK; - break; - case V4L2_FWNODE_ORIENTATION_EXTERNAL: - orientation_ctrl = V4L2_CAMERA_ORIENTATION_EXTERNAL; - break; - default: - return -EINVAL; - } - if (!v4l2_ctrl_new_std_menu(hdl, ctrl_ops, - V4L2_CID_CAMERA_ORIENTATION, - V4L2_CAMERA_ORIENTATION_EXTERNAL, 0, - orientation_ctrl)) - return hdl->error; - } - - if (p->rotation != V4L2_FWNODE_PROPERTY_UNSET) { - if (!v4l2_ctrl_new_std(hdl, ctrl_ops, - V4L2_CID_CAMERA_SENSOR_ROTATION, - p->rotation, p->rotation, 1, - p->rotation)) - return hdl->error; - } - - return hdl->error; -} -EXPORT_SYMBOL(v4l2_ctrl_new_fwnode_properties);