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0001 /* SPDX-License-Identifier: GPL-2.0 */ 0002 /* 0003 * 0004 * V 4 L 2 D R I V E R H E L P E R A P I 0005 * 0006 * Moved from videodev2.h 0007 * 0008 * Some commonly needed functions for drivers (v4l2-common.o module) 0009 */ 0010 #ifndef _V4L2_IOCTL_H 0011 #define _V4L2_IOCTL_H 0012 0013 #include <linux/poll.h> 0014 #include <linux/fs.h> 0015 #include <linux/mutex.h> 0016 #include <linux/sched/signal.h> 0017 #include <linux/compiler.h> /* need __user */ 0018 #include <linux/videodev2.h> 0019 0020 struct v4l2_fh; 0021 0022 /** 0023 * struct v4l2_ioctl_ops - describe operations for each V4L2 ioctl 0024 * 0025 * @vidioc_querycap: pointer to the function that implements 0026 * :ref:`VIDIOC_QUERYCAP <vidioc_querycap>` ioctl 0027 * @vidioc_enum_fmt_vid_cap: pointer to the function that implements 0028 * :ref:`VIDIOC_ENUM_FMT <vidioc_enum_fmt>` ioctl logic 0029 * for video capture in single and multi plane mode 0030 * @vidioc_enum_fmt_vid_overlay: pointer to the function that implements 0031 * :ref:`VIDIOC_ENUM_FMT <vidioc_enum_fmt>` ioctl logic 0032 * for video overlay 0033 * @vidioc_enum_fmt_vid_out: pointer to the function that implements 0034 * :ref:`VIDIOC_ENUM_FMT <vidioc_enum_fmt>` ioctl logic 0035 * for video output in single and multi plane mode 0036 * @vidioc_enum_fmt_sdr_cap: pointer to the function that implements 0037 * :ref:`VIDIOC_ENUM_FMT <vidioc_enum_fmt>` ioctl logic 0038 * for Software Defined Radio capture 0039 * @vidioc_enum_fmt_sdr_out: pointer to the function that implements 0040 * :ref:`VIDIOC_ENUM_FMT <vidioc_enum_fmt>` ioctl logic 0041 * for Software Defined Radio output 0042 * @vidioc_enum_fmt_meta_cap: pointer to the function that implements 0043 * :ref:`VIDIOC_ENUM_FMT <vidioc_enum_fmt>` ioctl logic 0044 * for metadata capture 0045 * @vidioc_enum_fmt_meta_out: pointer to the function that implements 0046 * :ref:`VIDIOC_ENUM_FMT <vidioc_enum_fmt>` ioctl logic 0047 * for metadata output 0048 * @vidioc_g_fmt_vid_cap: pointer to the function that implements 0049 * :ref:`VIDIOC_G_FMT <vidioc_g_fmt>` ioctl logic for video capture 0050 * in single plane mode 0051 * @vidioc_g_fmt_vid_overlay: pointer to the function that implements 0052 * :ref:`VIDIOC_G_FMT <vidioc_g_fmt>` ioctl logic for video overlay 0053 * @vidioc_g_fmt_vid_out: pointer to the function that implements 0054 * :ref:`VIDIOC_G_FMT <vidioc_g_fmt>` ioctl logic for video out 0055 * in single plane mode 0056 * @vidioc_g_fmt_vid_out_overlay: pointer to the function that implements 0057 * :ref:`VIDIOC_G_FMT <vidioc_g_fmt>` ioctl logic for video overlay output 0058 * @vidioc_g_fmt_vbi_cap: pointer to the function that implements 0059 * :ref:`VIDIOC_G_FMT <vidioc_g_fmt>` ioctl logic for raw VBI capture 0060 * @vidioc_g_fmt_vbi_out: pointer to the function that implements 0061 * :ref:`VIDIOC_G_FMT <vidioc_g_fmt>` ioctl logic for raw VBI output 0062 * @vidioc_g_fmt_sliced_vbi_cap: pointer to the function that implements 0063 * :ref:`VIDIOC_G_FMT <vidioc_g_fmt>` ioctl logic for sliced VBI capture 0064 * @vidioc_g_fmt_sliced_vbi_out: pointer to the function that implements 0065 * :ref:`VIDIOC_G_FMT <vidioc_g_fmt>` ioctl logic for sliced VBI output 0066 * @vidioc_g_fmt_vid_cap_mplane: pointer to the function that implements 0067 * :ref:`VIDIOC_G_FMT <vidioc_g_fmt>` ioctl logic for video capture 0068 * in multiple plane mode 0069 * @vidioc_g_fmt_vid_out_mplane: pointer to the function that implements 0070 * :ref:`VIDIOC_G_FMT <vidioc_g_fmt>` ioctl logic for video out 0071 * in multiplane plane mode 0072 * @vidioc_g_fmt_sdr_cap: pointer to the function that implements 0073 * :ref:`VIDIOC_G_FMT <vidioc_g_fmt>` ioctl logic for Software Defined 0074 * Radio capture 0075 * @vidioc_g_fmt_sdr_out: pointer to the function that implements 0076 * :ref:`VIDIOC_G_FMT <vidioc_g_fmt>` ioctl logic for Software Defined 0077 * Radio output 0078 * @vidioc_g_fmt_meta_cap: pointer to the function that implements 0079 * :ref:`VIDIOC_G_FMT <vidioc_g_fmt>` ioctl logic for metadata capture 0080 * @vidioc_g_fmt_meta_out: pointer to the function that implements 0081 * :ref:`VIDIOC_G_FMT <vidioc_g_fmt>` ioctl logic for metadata output 0082 * @vidioc_s_fmt_vid_cap: pointer to the function that implements 0083 * :ref:`VIDIOC_S_FMT <vidioc_g_fmt>` ioctl logic for video capture 0084 * in single plane mode 0085 * @vidioc_s_fmt_vid_overlay: pointer to the function that implements 0086 * :ref:`VIDIOC_S_FMT <vidioc_g_fmt>` ioctl logic for video overlay 0087 * @vidioc_s_fmt_vid_out: pointer to the function that implements 0088 * :ref:`VIDIOC_S_FMT <vidioc_g_fmt>` ioctl logic for video out 0089 * in single plane mode 0090 * @vidioc_s_fmt_vid_out_overlay: pointer to the function that implements 0091 * :ref:`VIDIOC_S_FMT <vidioc_g_fmt>` ioctl logic for video overlay output 0092 * @vidioc_s_fmt_vbi_cap: pointer to the function that implements 0093 * :ref:`VIDIOC_S_FMT <vidioc_g_fmt>` ioctl logic for raw VBI capture 0094 * @vidioc_s_fmt_vbi_out: pointer to the function that implements 0095 * :ref:`VIDIOC_S_FMT <vidioc_g_fmt>` ioctl logic for raw VBI output 0096 * @vidioc_s_fmt_sliced_vbi_cap: pointer to the function that implements 0097 * :ref:`VIDIOC_S_FMT <vidioc_g_fmt>` ioctl logic for sliced VBI capture 0098 * @vidioc_s_fmt_sliced_vbi_out: pointer to the function that implements 0099 * :ref:`VIDIOC_S_FMT <vidioc_g_fmt>` ioctl logic for sliced VBI output 0100 * @vidioc_s_fmt_vid_cap_mplane: pointer to the function that implements 0101 * :ref:`VIDIOC_S_FMT <vidioc_g_fmt>` ioctl logic for video capture 0102 * in multiple plane mode 0103 * @vidioc_s_fmt_vid_out_mplane: pointer to the function that implements 0104 * :ref:`VIDIOC_S_FMT <vidioc_g_fmt>` ioctl logic for video out 0105 * in multiplane plane mode 0106 * @vidioc_s_fmt_sdr_cap: pointer to the function that implements 0107 * :ref:`VIDIOC_S_FMT <vidioc_g_fmt>` ioctl logic for Software Defined 0108 * Radio capture 0109 * @vidioc_s_fmt_sdr_out: pointer to the function that implements 0110 * :ref:`VIDIOC_S_FMT <vidioc_g_fmt>` ioctl logic for Software Defined 0111 * Radio output 0112 * @vidioc_s_fmt_meta_cap: pointer to the function that implements 0113 * :ref:`VIDIOC_S_FMT <vidioc_g_fmt>` ioctl logic for metadata capture 0114 * @vidioc_s_fmt_meta_out: pointer to the function that implements 0115 * :ref:`VIDIOC_S_FMT <vidioc_g_fmt>` ioctl logic for metadata output 0116 * @vidioc_try_fmt_vid_cap: pointer to the function that implements 0117 * :ref:`VIDIOC_TRY_FMT <vidioc_g_fmt>` ioctl logic for video capture 0118 * in single plane mode 0119 * @vidioc_try_fmt_vid_overlay: pointer to the function that implements 0120 * :ref:`VIDIOC_TRY_FMT <vidioc_g_fmt>` ioctl logic for video overlay 0121 * @vidioc_try_fmt_vid_out: pointer to the function that implements 0122 * :ref:`VIDIOC_TRY_FMT <vidioc_g_fmt>` ioctl logic for video out 0123 * in single plane mode 0124 * @vidioc_try_fmt_vid_out_overlay: pointer to the function that implements 0125 * :ref:`VIDIOC_TRY_FMT <vidioc_g_fmt>` ioctl logic for video overlay 0126 * output 0127 * @vidioc_try_fmt_vbi_cap: pointer to the function that implements 0128 * :ref:`VIDIOC_TRY_FMT <vidioc_g_fmt>` ioctl logic for raw VBI capture 0129 * @vidioc_try_fmt_vbi_out: pointer to the function that implements 0130 * :ref:`VIDIOC_TRY_FMT <vidioc_g_fmt>` ioctl logic for raw VBI output 0131 * @vidioc_try_fmt_sliced_vbi_cap: pointer to the function that implements 0132 * :ref:`VIDIOC_TRY_FMT <vidioc_g_fmt>` ioctl logic for sliced VBI 0133 * capture 0134 * @vidioc_try_fmt_sliced_vbi_out: pointer to the function that implements 0135 * :ref:`VIDIOC_TRY_FMT <vidioc_g_fmt>` ioctl logic for sliced VBI output 0136 * @vidioc_try_fmt_vid_cap_mplane: pointer to the function that implements 0137 * :ref:`VIDIOC_TRY_FMT <vidioc_g_fmt>` ioctl logic for video capture 0138 * in multiple plane mode 0139 * @vidioc_try_fmt_vid_out_mplane: pointer to the function that implements 0140 * :ref:`VIDIOC_TRY_FMT <vidioc_g_fmt>` ioctl logic for video out 0141 * in multiplane plane mode 0142 * @vidioc_try_fmt_sdr_cap: pointer to the function that implements 0143 * :ref:`VIDIOC_TRY_FMT <vidioc_g_fmt>` ioctl logic for Software Defined 0144 * Radio capture 0145 * @vidioc_try_fmt_sdr_out: pointer to the function that implements 0146 * :ref:`VIDIOC_TRY_FMT <vidioc_g_fmt>` ioctl logic for Software Defined 0147 * Radio output 0148 * @vidioc_try_fmt_meta_cap: pointer to the function that implements 0149 * :ref:`VIDIOC_TRY_FMT <vidioc_g_fmt>` ioctl logic for metadata capture 0150 * @vidioc_try_fmt_meta_out: pointer to the function that implements 0151 * :ref:`VIDIOC_TRY_FMT <vidioc_g_fmt>` ioctl logic for metadata output 0152 * @vidioc_reqbufs: pointer to the function that implements 0153 * :ref:`VIDIOC_REQBUFS <vidioc_reqbufs>` ioctl 0154 * @vidioc_querybuf: pointer to the function that implements 0155 * :ref:`VIDIOC_QUERYBUF <vidioc_querybuf>` ioctl 0156 * @vidioc_qbuf: pointer to the function that implements 0157 * :ref:`VIDIOC_QBUF <vidioc_qbuf>` ioctl 0158 * @vidioc_expbuf: pointer to the function that implements 0159 * :ref:`VIDIOC_EXPBUF <vidioc_expbuf>` ioctl 0160 * @vidioc_dqbuf: pointer to the function that implements 0161 * :ref:`VIDIOC_DQBUF <vidioc_qbuf>` ioctl 0162 * @vidioc_create_bufs: pointer to the function that implements 0163 * :ref:`VIDIOC_CREATE_BUFS <vidioc_create_bufs>` ioctl 0164 * @vidioc_prepare_buf: pointer to the function that implements 0165 * :ref:`VIDIOC_PREPARE_BUF <vidioc_prepare_buf>` ioctl 0166 * @vidioc_overlay: pointer to the function that implements 0167 * :ref:`VIDIOC_OVERLAY <vidioc_overlay>` ioctl 0168 * @vidioc_g_fbuf: pointer to the function that implements 0169 * :ref:`VIDIOC_G_FBUF <vidioc_g_fbuf>` ioctl 0170 * @vidioc_s_fbuf: pointer to the function that implements 0171 * :ref:`VIDIOC_S_FBUF <vidioc_g_fbuf>` ioctl 0172 * @vidioc_streamon: pointer to the function that implements 0173 * :ref:`VIDIOC_STREAMON <vidioc_streamon>` ioctl 0174 * @vidioc_streamoff: pointer to the function that implements 0175 * :ref:`VIDIOC_STREAMOFF <vidioc_streamon>` ioctl 0176 * @vidioc_g_std: pointer to the function that implements 0177 * :ref:`VIDIOC_G_STD <vidioc_g_std>` ioctl 0178 * @vidioc_s_std: pointer to the function that implements 0179 * :ref:`VIDIOC_S_STD <vidioc_g_std>` ioctl 0180 * @vidioc_querystd: pointer to the function that implements 0181 * :ref:`VIDIOC_QUERYSTD <vidioc_querystd>` ioctl 0182 * @vidioc_enum_input: pointer to the function that implements 0183 * :ref:`VIDIOC_ENUM_INPUT <vidioc_g_input>` ioctl 0184 * @vidioc_g_input: pointer to the function that implements 0185 * :ref:`VIDIOC_G_INPUT <vidioc_g_input>` ioctl 0186 * @vidioc_s_input: pointer to the function that implements 0187 * :ref:`VIDIOC_S_INPUT <vidioc_g_input>` ioctl 0188 * @vidioc_enum_output: pointer to the function that implements 0189 * :ref:`VIDIOC_ENUM_OUTPUT <vidioc_g_output>` ioctl 0190 * @vidioc_g_output: pointer to the function that implements 0191 * :ref:`VIDIOC_G_OUTPUT <vidioc_g_output>` ioctl 0192 * @vidioc_s_output: pointer to the function that implements 0193 * :ref:`VIDIOC_S_OUTPUT <vidioc_g_output>` ioctl 0194 * @vidioc_queryctrl: pointer to the function that implements 0195 * :ref:`VIDIOC_QUERYCTRL <vidioc_queryctrl>` ioctl 0196 * @vidioc_query_ext_ctrl: pointer to the function that implements 0197 * :ref:`VIDIOC_QUERY_EXT_CTRL <vidioc_queryctrl>` ioctl 0198 * @vidioc_g_ctrl: pointer to the function that implements 0199 * :ref:`VIDIOC_G_CTRL <vidioc_g_ctrl>` ioctl 0200 * @vidioc_s_ctrl: pointer to the function that implements 0201 * :ref:`VIDIOC_S_CTRL <vidioc_g_ctrl>` ioctl 0202 * @vidioc_g_ext_ctrls: pointer to the function that implements 0203 * :ref:`VIDIOC_G_EXT_CTRLS <vidioc_g_ext_ctrls>` ioctl 0204 * @vidioc_s_ext_ctrls: pointer to the function that implements 0205 * :ref:`VIDIOC_S_EXT_CTRLS <vidioc_g_ext_ctrls>` ioctl 0206 * @vidioc_try_ext_ctrls: pointer to the function that implements 0207 * :ref:`VIDIOC_TRY_EXT_CTRLS <vidioc_g_ext_ctrls>` ioctl 0208 * @vidioc_querymenu: pointer to the function that implements 0209 * :ref:`VIDIOC_QUERYMENU <vidioc_queryctrl>` ioctl 0210 * @vidioc_enumaudio: pointer to the function that implements 0211 * :ref:`VIDIOC_ENUMAUDIO <vidioc_enumaudio>` ioctl 0212 * @vidioc_g_audio: pointer to the function that implements 0213 * :ref:`VIDIOC_G_AUDIO <vidioc_g_audio>` ioctl 0214 * @vidioc_s_audio: pointer to the function that implements 0215 * :ref:`VIDIOC_S_AUDIO <vidioc_g_audio>` ioctl 0216 * @vidioc_enumaudout: pointer to the function that implements 0217 * :ref:`VIDIOC_ENUMAUDOUT <vidioc_enumaudout>` ioctl 0218 * @vidioc_g_audout: pointer to the function that implements 0219 * :ref:`VIDIOC_G_AUDOUT <vidioc_g_audout>` ioctl 0220 * @vidioc_s_audout: pointer to the function that implements 0221 * :ref:`VIDIOC_S_AUDOUT <vidioc_g_audout>` ioctl 0222 * @vidioc_g_modulator: pointer to the function that implements 0223 * :ref:`VIDIOC_G_MODULATOR <vidioc_g_modulator>` ioctl 0224 * @vidioc_s_modulator: pointer to the function that implements 0225 * :ref:`VIDIOC_S_MODULATOR <vidioc_g_modulator>` ioctl 0226 * @vidioc_g_pixelaspect: pointer to the function that implements 0227 * the pixelaspect part of the :ref:`VIDIOC_CROPCAP <vidioc_cropcap>` ioctl 0228 * @vidioc_g_selection: pointer to the function that implements 0229 * :ref:`VIDIOC_G_SELECTION <vidioc_g_selection>` ioctl 0230 * @vidioc_s_selection: pointer to the function that implements 0231 * :ref:`VIDIOC_S_SELECTION <vidioc_g_selection>` ioctl 0232 * @vidioc_g_jpegcomp: pointer to the function that implements 0233 * :ref:`VIDIOC_G_JPEGCOMP <vidioc_g_jpegcomp>` ioctl 0234 * @vidioc_s_jpegcomp: pointer to the function that implements 0235 * :ref:`VIDIOC_S_JPEGCOMP <vidioc_g_jpegcomp>` ioctl 0236 * @vidioc_g_enc_index: pointer to the function that implements 0237 * :ref:`VIDIOC_G_ENC_INDEX <vidioc_g_enc_index>` ioctl 0238 * @vidioc_encoder_cmd: pointer to the function that implements 0239 * :ref:`VIDIOC_ENCODER_CMD <vidioc_encoder_cmd>` ioctl 0240 * @vidioc_try_encoder_cmd: pointer to the function that implements 0241 * :ref:`VIDIOC_TRY_ENCODER_CMD <vidioc_encoder_cmd>` ioctl 0242 * @vidioc_decoder_cmd: pointer to the function that implements 0243 * :ref:`VIDIOC_DECODER_CMD <vidioc_decoder_cmd>` ioctl 0244 * @vidioc_try_decoder_cmd: pointer to the function that implements 0245 * :ref:`VIDIOC_TRY_DECODER_CMD <vidioc_decoder_cmd>` ioctl 0246 * @vidioc_g_parm: pointer to the function that implements 0247 * :ref:`VIDIOC_G_PARM <vidioc_g_parm>` ioctl 0248 * @vidioc_s_parm: pointer to the function that implements 0249 * :ref:`VIDIOC_S_PARM <vidioc_g_parm>` ioctl 0250 * @vidioc_g_tuner: pointer to the function that implements 0251 * :ref:`VIDIOC_G_TUNER <vidioc_g_tuner>` ioctl 0252 * @vidioc_s_tuner: pointer to the function that implements 0253 * :ref:`VIDIOC_S_TUNER <vidioc_g_tuner>` ioctl 0254 * @vidioc_g_frequency: pointer to the function that implements 0255 * :ref:`VIDIOC_G_FREQUENCY <vidioc_g_frequency>` ioctl 0256 * @vidioc_s_frequency: pointer to the function that implements 0257 * :ref:`VIDIOC_S_FREQUENCY <vidioc_g_frequency>` ioctl 0258 * @vidioc_enum_freq_bands: pointer to the function that implements 0259 * :ref:`VIDIOC_ENUM_FREQ_BANDS <vidioc_enum_freq_bands>` ioctl 0260 * @vidioc_g_sliced_vbi_cap: pointer to the function that implements 0261 * :ref:`VIDIOC_G_SLICED_VBI_CAP <vidioc_g_sliced_vbi_cap>` ioctl 0262 * @vidioc_log_status: pointer to the function that implements 0263 * :ref:`VIDIOC_LOG_STATUS <vidioc_log_status>` ioctl 0264 * @vidioc_s_hw_freq_seek: pointer to the function that implements 0265 * :ref:`VIDIOC_S_HW_FREQ_SEEK <vidioc_s_hw_freq_seek>` ioctl 0266 * @vidioc_g_register: pointer to the function that implements 0267 * :ref:`VIDIOC_DBG_G_REGISTER <vidioc_dbg_g_register>` ioctl 0268 * @vidioc_s_register: pointer to the function that implements 0269 * :ref:`VIDIOC_DBG_S_REGISTER <vidioc_dbg_g_register>` ioctl 0270 * @vidioc_g_chip_info: pointer to the function that implements 0271 * :ref:`VIDIOC_DBG_G_CHIP_INFO <vidioc_dbg_g_chip_info>` ioctl 0272 * @vidioc_enum_framesizes: pointer to the function that implements 0273 * :ref:`VIDIOC_ENUM_FRAMESIZES <vidioc_enum_framesizes>` ioctl 0274 * @vidioc_enum_frameintervals: pointer to the function that implements 0275 * :ref:`VIDIOC_ENUM_FRAMEINTERVALS <vidioc_enum_frameintervals>` ioctl 0276 * @vidioc_s_dv_timings: pointer to the function that implements 0277 * :ref:`VIDIOC_S_DV_TIMINGS <vidioc_g_dv_timings>` ioctl 0278 * @vidioc_g_dv_timings: pointer to the function that implements 0279 * :ref:`VIDIOC_G_DV_TIMINGS <vidioc_g_dv_timings>` ioctl 0280 * @vidioc_query_dv_timings: pointer to the function that implements 0281 * :ref:`VIDIOC_QUERY_DV_TIMINGS <vidioc_query_dv_timings>` ioctl 0282 * @vidioc_enum_dv_timings: pointer to the function that implements 0283 * :ref:`VIDIOC_ENUM_DV_TIMINGS <vidioc_enum_dv_timings>` ioctl 0284 * @vidioc_dv_timings_cap: pointer to the function that implements 0285 * :ref:`VIDIOC_DV_TIMINGS_CAP <vidioc_dv_timings_cap>` ioctl 0286 * @vidioc_g_edid: pointer to the function that implements 0287 * :ref:`VIDIOC_G_EDID <vidioc_g_edid>` ioctl 0288 * @vidioc_s_edid: pointer to the function that implements 0289 * :ref:`VIDIOC_S_EDID <vidioc_g_edid>` ioctl 0290 * @vidioc_subscribe_event: pointer to the function that implements 0291 * :ref:`VIDIOC_SUBSCRIBE_EVENT <vidioc_subscribe_event>` ioctl 0292 * @vidioc_unsubscribe_event: pointer to the function that implements 0293 * :ref:`VIDIOC_UNSUBSCRIBE_EVENT <vidioc_unsubscribe_event>` ioctl 0294 * @vidioc_default: pointed used to allow other ioctls 0295 */ 0296 struct v4l2_ioctl_ops { 0297 /* ioctl callbacks */ 0298 0299 /* VIDIOC_QUERYCAP handler */ 0300 int (*vidioc_querycap)(struct file *file, void *fh, 0301 struct v4l2_capability *cap); 0302 0303 /* VIDIOC_ENUM_FMT handlers */ 0304 int (*vidioc_enum_fmt_vid_cap)(struct file *file, void *fh, 0305 struct v4l2_fmtdesc *f); 0306 int (*vidioc_enum_fmt_vid_overlay)(struct file *file, void *fh, 0307 struct v4l2_fmtdesc *f); 0308 int (*vidioc_enum_fmt_vid_out)(struct file *file, void *fh, 0309 struct v4l2_fmtdesc *f); 0310 int (*vidioc_enum_fmt_sdr_cap)(struct file *file, void *fh, 0311 struct v4l2_fmtdesc *f); 0312 int (*vidioc_enum_fmt_sdr_out)(struct file *file, void *fh, 0313 struct v4l2_fmtdesc *f); 0314 int (*vidioc_enum_fmt_meta_cap)(struct file *file, void *fh, 0315 struct v4l2_fmtdesc *f); 0316 int (*vidioc_enum_fmt_meta_out)(struct file *file, void *fh, 0317 struct v4l2_fmtdesc *f); 0318 0319 /* VIDIOC_G_FMT handlers */ 0320 int (*vidioc_g_fmt_vid_cap)(struct file *file, void *fh, 0321 struct v4l2_format *f); 0322 int (*vidioc_g_fmt_vid_overlay)(struct file *file, void *fh, 0323 struct v4l2_format *f); 0324 int (*vidioc_g_fmt_vid_out)(struct file *file, void *fh, 0325 struct v4l2_format *f); 0326 int (*vidioc_g_fmt_vid_out_overlay)(struct file *file, void *fh, 0327 struct v4l2_format *f); 0328 int (*vidioc_g_fmt_vbi_cap)(struct file *file, void *fh, 0329 struct v4l2_format *f); 0330 int (*vidioc_g_fmt_vbi_out)(struct file *file, void *fh, 0331 struct v4l2_format *f); 0332 int (*vidioc_g_fmt_sliced_vbi_cap)(struct file *file, void *fh, 0333 struct v4l2_format *f); 0334 int (*vidioc_g_fmt_sliced_vbi_out)(struct file *file, void *fh, 0335 struct v4l2_format *f); 0336 int (*vidioc_g_fmt_vid_cap_mplane)(struct file *file, void *fh, 0337 struct v4l2_format *f); 0338 int (*vidioc_g_fmt_vid_out_mplane)(struct file *file, void *fh, 0339 struct v4l2_format *f); 0340 int (*vidioc_g_fmt_sdr_cap)(struct file *file, void *fh, 0341 struct v4l2_format *f); 0342 int (*vidioc_g_fmt_sdr_out)(struct file *file, void *fh, 0343 struct v4l2_format *f); 0344 int (*vidioc_g_fmt_meta_cap)(struct file *file, void *fh, 0345 struct v4l2_format *f); 0346 int (*vidioc_g_fmt_meta_out)(struct file *file, void *fh, 0347 struct v4l2_format *f); 0348 0349 /* VIDIOC_S_FMT handlers */ 0350 int (*vidioc_s_fmt_vid_cap)(struct file *file, void *fh, 0351 struct v4l2_format *f); 0352 int (*vidioc_s_fmt_vid_overlay)(struct file *file, void *fh, 0353 struct v4l2_format *f); 0354 int (*vidioc_s_fmt_vid_out)(struct file *file, void *fh, 0355 struct v4l2_format *f); 0356 int (*vidioc_s_fmt_vid_out_overlay)(struct file *file, void *fh, 0357 struct v4l2_format *f); 0358 int (*vidioc_s_fmt_vbi_cap)(struct file *file, void *fh, 0359 struct v4l2_format *f); 0360 int (*vidioc_s_fmt_vbi_out)(struct file *file, void *fh, 0361 struct v4l2_format *f); 0362 int (*vidioc_s_fmt_sliced_vbi_cap)(struct file *file, void *fh, 0363 struct v4l2_format *f); 0364 int (*vidioc_s_fmt_sliced_vbi_out)(struct file *file, void *fh, 0365 struct v4l2_format *f); 0366 int (*vidioc_s_fmt_vid_cap_mplane)(struct file *file, void *fh, 0367 struct v4l2_format *f); 0368 int (*vidioc_s_fmt_vid_out_mplane)(struct file *file, void *fh, 0369 struct v4l2_format *f); 0370 int (*vidioc_s_fmt_sdr_cap)(struct file *file, void *fh, 0371 struct v4l2_format *f); 0372 int (*vidioc_s_fmt_sdr_out)(struct file *file, void *fh, 0373 struct v4l2_format *f); 0374 int (*vidioc_s_fmt_meta_cap)(struct file *file, void *fh, 0375 struct v4l2_format *f); 0376 int (*vidioc_s_fmt_meta_out)(struct file *file, void *fh, 0377 struct v4l2_format *f); 0378 0379 /* VIDIOC_TRY_FMT handlers */ 0380 int (*vidioc_try_fmt_vid_cap)(struct file *file, void *fh, 0381 struct v4l2_format *f); 0382 int (*vidioc_try_fmt_vid_overlay)(struct file *file, void *fh, 0383 struct v4l2_format *f); 0384 int (*vidioc_try_fmt_vid_out)(struct file *file, void *fh, 0385 struct v4l2_format *f); 0386 int (*vidioc_try_fmt_vid_out_overlay)(struct file *file, void *fh, 0387 struct v4l2_format *f); 0388 int (*vidioc_try_fmt_vbi_cap)(struct file *file, void *fh, 0389 struct v4l2_format *f); 0390 int (*vidioc_try_fmt_vbi_out)(struct file *file, void *fh, 0391 struct v4l2_format *f); 0392 int (*vidioc_try_fmt_sliced_vbi_cap)(struct file *file, void *fh, 0393 struct v4l2_format *f); 0394 int (*vidioc_try_fmt_sliced_vbi_out)(struct file *file, void *fh, 0395 struct v4l2_format *f); 0396 int (*vidioc_try_fmt_vid_cap_mplane)(struct file *file, void *fh, 0397 struct v4l2_format *f); 0398 int (*vidioc_try_fmt_vid_out_mplane)(struct file *file, void *fh, 0399 struct v4l2_format *f); 0400 int (*vidioc_try_fmt_sdr_cap)(struct file *file, void *fh, 0401 struct v4l2_format *f); 0402 int (*vidioc_try_fmt_sdr_out)(struct file *file, void *fh, 0403 struct v4l2_format *f); 0404 int (*vidioc_try_fmt_meta_cap)(struct file *file, void *fh, 0405 struct v4l2_format *f); 0406 int (*vidioc_try_fmt_meta_out)(struct file *file, void *fh, 0407 struct v4l2_format *f); 0408 0409 /* Buffer handlers */ 0410 int (*vidioc_reqbufs)(struct file *file, void *fh, 0411 struct v4l2_requestbuffers *b); 0412 int (*vidioc_querybuf)(struct file *file, void *fh, 0413 struct v4l2_buffer *b); 0414 int (*vidioc_qbuf)(struct file *file, void *fh, 0415 struct v4l2_buffer *b); 0416 int (*vidioc_expbuf)(struct file *file, void *fh, 0417 struct v4l2_exportbuffer *e); 0418 int (*vidioc_dqbuf)(struct file *file, void *fh, 0419 struct v4l2_buffer *b); 0420 0421 int (*vidioc_create_bufs)(struct file *file, void *fh, 0422 struct v4l2_create_buffers *b); 0423 int (*vidioc_prepare_buf)(struct file *file, void *fh, 0424 struct v4l2_buffer *b); 0425 0426 int (*vidioc_overlay)(struct file *file, void *fh, unsigned int i); 0427 int (*vidioc_g_fbuf)(struct file *file, void *fh, 0428 struct v4l2_framebuffer *a); 0429 int (*vidioc_s_fbuf)(struct file *file, void *fh, 0430 const struct v4l2_framebuffer *a); 0431 0432 /* Stream on/off */ 0433 int (*vidioc_streamon)(struct file *file, void *fh, 0434 enum v4l2_buf_type i); 0435 int (*vidioc_streamoff)(struct file *file, void *fh, 0436 enum v4l2_buf_type i); 0437 0438 /* 0439 * Standard handling 0440 * 0441 * Note: ENUMSTD is handled by videodev.c 0442 */ 0443 int (*vidioc_g_std)(struct file *file, void *fh, v4l2_std_id *norm); 0444 int (*vidioc_s_std)(struct file *file, void *fh, v4l2_std_id norm); 0445 int (*vidioc_querystd)(struct file *file, void *fh, v4l2_std_id *a); 0446 0447 /* Input handling */ 0448 int (*vidioc_enum_input)(struct file *file, void *fh, 0449 struct v4l2_input *inp); 0450 int (*vidioc_g_input)(struct file *file, void *fh, unsigned int *i); 0451 int (*vidioc_s_input)(struct file *file, void *fh, unsigned int i); 0452 0453 /* Output handling */ 0454 int (*vidioc_enum_output)(struct file *file, void *fh, 0455 struct v4l2_output *a); 0456 int (*vidioc_g_output)(struct file *file, void *fh, unsigned int *i); 0457 int (*vidioc_s_output)(struct file *file, void *fh, unsigned int i); 0458 0459 /* Control handling */ 0460 int (*vidioc_queryctrl)(struct file *file, void *fh, 0461 struct v4l2_queryctrl *a); 0462 int (*vidioc_query_ext_ctrl)(struct file *file, void *fh, 0463 struct v4l2_query_ext_ctrl *a); 0464 int (*vidioc_g_ctrl)(struct file *file, void *fh, 0465 struct v4l2_control *a); 0466 int (*vidioc_s_ctrl)(struct file *file, void *fh, 0467 struct v4l2_control *a); 0468 int (*vidioc_g_ext_ctrls)(struct file *file, void *fh, 0469 struct v4l2_ext_controls *a); 0470 int (*vidioc_s_ext_ctrls)(struct file *file, void *fh, 0471 struct v4l2_ext_controls *a); 0472 int (*vidioc_try_ext_ctrls)(struct file *file, void *fh, 0473 struct v4l2_ext_controls *a); 0474 int (*vidioc_querymenu)(struct file *file, void *fh, 0475 struct v4l2_querymenu *a); 0476 0477 /* Audio ioctls */ 0478 int (*vidioc_enumaudio)(struct file *file, void *fh, 0479 struct v4l2_audio *a); 0480 int (*vidioc_g_audio)(struct file *file, void *fh, 0481 struct v4l2_audio *a); 0482 int (*vidioc_s_audio)(struct file *file, void *fh, 0483 const struct v4l2_audio *a); 0484 0485 /* Audio out ioctls */ 0486 int (*vidioc_enumaudout)(struct file *file, void *fh, 0487 struct v4l2_audioout *a); 0488 int (*vidioc_g_audout)(struct file *file, void *fh, 0489 struct v4l2_audioout *a); 0490 int (*vidioc_s_audout)(struct file *file, void *fh, 0491 const struct v4l2_audioout *a); 0492 int (*vidioc_g_modulator)(struct file *file, void *fh, 0493 struct v4l2_modulator *a); 0494 int (*vidioc_s_modulator)(struct file *file, void *fh, 0495 const struct v4l2_modulator *a); 0496 /* Crop ioctls */ 0497 int (*vidioc_g_pixelaspect)(struct file *file, void *fh, 0498 int buf_type, struct v4l2_fract *aspect); 0499 int (*vidioc_g_selection)(struct file *file, void *fh, 0500 struct v4l2_selection *s); 0501 int (*vidioc_s_selection)(struct file *file, void *fh, 0502 struct v4l2_selection *s); 0503 /* Compression ioctls */ 0504 int (*vidioc_g_jpegcomp)(struct file *file, void *fh, 0505 struct v4l2_jpegcompression *a); 0506 int (*vidioc_s_jpegcomp)(struct file *file, void *fh, 0507 const struct v4l2_jpegcompression *a); 0508 int (*vidioc_g_enc_index)(struct file *file, void *fh, 0509 struct v4l2_enc_idx *a); 0510 int (*vidioc_encoder_cmd)(struct file *file, void *fh, 0511 struct v4l2_encoder_cmd *a); 0512 int (*vidioc_try_encoder_cmd)(struct file *file, void *fh, 0513 struct v4l2_encoder_cmd *a); 0514 int (*vidioc_decoder_cmd)(struct file *file, void *fh, 0515 struct v4l2_decoder_cmd *a); 0516 int (*vidioc_try_decoder_cmd)(struct file *file, void *fh, 0517 struct v4l2_decoder_cmd *a); 0518 0519 /* Stream type-dependent parameter ioctls */ 0520 int (*vidioc_g_parm)(struct file *file, void *fh, 0521 struct v4l2_streamparm *a); 0522 int (*vidioc_s_parm)(struct file *file, void *fh, 0523 struct v4l2_streamparm *a); 0524 0525 /* Tuner ioctls */ 0526 int (*vidioc_g_tuner)(struct file *file, void *fh, 0527 struct v4l2_tuner *a); 0528 int (*vidioc_s_tuner)(struct file *file, void *fh, 0529 const struct v4l2_tuner *a); 0530 int (*vidioc_g_frequency)(struct file *file, void *fh, 0531 struct v4l2_frequency *a); 0532 int (*vidioc_s_frequency)(struct file *file, void *fh, 0533 const struct v4l2_frequency *a); 0534 int (*vidioc_enum_freq_bands)(struct file *file, void *fh, 0535 struct v4l2_frequency_band *band); 0536 0537 /* Sliced VBI cap */ 0538 int (*vidioc_g_sliced_vbi_cap)(struct file *file, void *fh, 0539 struct v4l2_sliced_vbi_cap *a); 0540 0541 /* Log status ioctl */ 0542 int (*vidioc_log_status)(struct file *file, void *fh); 0543 0544 int (*vidioc_s_hw_freq_seek)(struct file *file, void *fh, 0545 const struct v4l2_hw_freq_seek *a); 0546 0547 /* Debugging ioctls */ 0548 #ifdef CONFIG_VIDEO_ADV_DEBUG 0549 int (*vidioc_g_register)(struct file *file, void *fh, 0550 struct v4l2_dbg_register *reg); 0551 int (*vidioc_s_register)(struct file *file, void *fh, 0552 const struct v4l2_dbg_register *reg); 0553 0554 int (*vidioc_g_chip_info)(struct file *file, void *fh, 0555 struct v4l2_dbg_chip_info *chip); 0556 #endif 0557 0558 int (*vidioc_enum_framesizes)(struct file *file, void *fh, 0559 struct v4l2_frmsizeenum *fsize); 0560 0561 int (*vidioc_enum_frameintervals)(struct file *file, void *fh, 0562 struct v4l2_frmivalenum *fival); 0563 0564 /* DV Timings IOCTLs */ 0565 int (*vidioc_s_dv_timings)(struct file *file, void *fh, 0566 struct v4l2_dv_timings *timings); 0567 int (*vidioc_g_dv_timings)(struct file *file, void *fh, 0568 struct v4l2_dv_timings *timings); 0569 int (*vidioc_query_dv_timings)(struct file *file, void *fh, 0570 struct v4l2_dv_timings *timings); 0571 int (*vidioc_enum_dv_timings)(struct file *file, void *fh, 0572 struct v4l2_enum_dv_timings *timings); 0573 int (*vidioc_dv_timings_cap)(struct file *file, void *fh, 0574 struct v4l2_dv_timings_cap *cap); 0575 int (*vidioc_g_edid)(struct file *file, void *fh, 0576 struct v4l2_edid *edid); 0577 int (*vidioc_s_edid)(struct file *file, void *fh, 0578 struct v4l2_edid *edid); 0579 0580 int (*vidioc_subscribe_event)(struct v4l2_fh *fh, 0581 const struct v4l2_event_subscription *sub); 0582 int (*vidioc_unsubscribe_event)(struct v4l2_fh *fh, 0583 const struct v4l2_event_subscription *sub); 0584 0585 /* For other private ioctls */ 0586 long (*vidioc_default)(struct file *file, void *fh, 0587 bool valid_prio, unsigned int cmd, void *arg); 0588 }; 0589 0590 0591 /* v4l debugging and diagnostics */ 0592 0593 /* Device debug flags to be used with the video device debug attribute */ 0594 0595 /* Just log the ioctl name + error code */ 0596 #define V4L2_DEV_DEBUG_IOCTL 0x01 0597 /* Log the ioctl name arguments + error code */ 0598 #define V4L2_DEV_DEBUG_IOCTL_ARG 0x02 0599 /* Log the file operations open, release, mmap and get_unmapped_area */ 0600 #define V4L2_DEV_DEBUG_FOP 0x04 0601 /* Log the read and write file operations and the VIDIOC_(D)QBUF ioctls */ 0602 #define V4L2_DEV_DEBUG_STREAMING 0x08 0603 /* Log poll() */ 0604 #define V4L2_DEV_DEBUG_POLL 0x10 0605 /* Log controls */ 0606 #define V4L2_DEV_DEBUG_CTRL 0x20 0607 0608 /* Video standard functions */ 0609 0610 /** 0611 * v4l2_norm_to_name - Ancillary routine to analog TV standard name from its ID. 0612 * 0613 * @id: analog TV standard ID. 0614 * 0615 * Return: returns a string with the name of the analog TV standard. 0616 * If the standard is not found or if @id points to multiple standard, 0617 * it returns "Unknown". 0618 */ 0619 const char *v4l2_norm_to_name(v4l2_std_id id); 0620 0621 /** 0622 * v4l2_video_std_frame_period - Ancillary routine that fills a 0623 * struct &v4l2_fract pointer with the default framerate fraction. 0624 * 0625 * @id: analog TV standard ID. 0626 * @frameperiod: struct &v4l2_fract pointer to be filled 0627 * 0628 */ 0629 void v4l2_video_std_frame_period(int id, struct v4l2_fract *frameperiod); 0630 0631 /** 0632 * v4l2_video_std_construct - Ancillary routine that fills in the fields of 0633 * a &v4l2_standard structure according to the @id parameter. 0634 * 0635 * @vs: struct &v4l2_standard pointer to be filled 0636 * @id: analog TV standard ID. 0637 * @name: name of the standard to be used 0638 * 0639 * .. note:: 0640 * 0641 * This ancillary routine is obsolete. Shouldn't be used on newer drivers. 0642 */ 0643 int v4l2_video_std_construct(struct v4l2_standard *vs, 0644 int id, const char *name); 0645 0646 /** 0647 * v4l_video_std_enumstd - Ancillary routine that fills in the fields of 0648 * a &v4l2_standard structure according to the @id and @vs->index 0649 * parameters. 0650 * 0651 * @vs: struct &v4l2_standard pointer to be filled. 0652 * @id: analog TV standard ID. 0653 * 0654 */ 0655 int v4l_video_std_enumstd(struct v4l2_standard *vs, v4l2_std_id id); 0656 0657 /** 0658 * v4l_printk_ioctl - Ancillary routine that prints the ioctl in a 0659 * human-readable format. 0660 * 0661 * @prefix: prefix to be added at the ioctl prints. 0662 * @cmd: ioctl name 0663 * 0664 * .. note:: 0665 * 0666 * If prefix != %NULL, then it will issue a 0667 * ``printk(KERN_DEBUG "%s: ", prefix)`` first. 0668 */ 0669 void v4l_printk_ioctl(const char *prefix, unsigned int cmd); 0670 0671 struct video_device; 0672 0673 /* names for fancy debug output */ 0674 extern const char *v4l2_field_names[]; 0675 extern const char *v4l2_type_names[]; 0676 0677 #ifdef CONFIG_COMPAT 0678 /** 0679 * v4l2_compat_ioctl32 -32 Bits compatibility layer for 64 bits processors 0680 * 0681 * @file: Pointer to struct &file. 0682 * @cmd: Ioctl name. 0683 * @arg: Ioctl argument. 0684 */ 0685 long int v4l2_compat_ioctl32(struct file *file, unsigned int cmd, 0686 unsigned long arg); 0687 #endif 0688 0689 unsigned int v4l2_compat_translate_cmd(unsigned int cmd); 0690 int v4l2_compat_get_user(void __user *arg, void *parg, unsigned int cmd); 0691 int v4l2_compat_put_user(void __user *arg, void *parg, unsigned int cmd); 0692 int v4l2_compat_get_array_args(struct file *file, void *mbuf, 0693 void __user *user_ptr, size_t array_size, 0694 unsigned int cmd, void *arg); 0695 int v4l2_compat_put_array_args(struct file *file, void __user *user_ptr, 0696 void *mbuf, size_t array_size, 0697 unsigned int cmd, void *arg); 0698 0699 /** 0700 * typedef v4l2_kioctl - Typedef used to pass an ioctl handler. 0701 * 0702 * @file: Pointer to struct &file. 0703 * @cmd: Ioctl name. 0704 * @arg: Ioctl argument. 0705 */ 0706 typedef long (*v4l2_kioctl)(struct file *file, unsigned int cmd, void *arg); 0707 0708 /** 0709 * video_usercopy - copies data from/to userspace memory when an ioctl is 0710 * issued. 0711 * 0712 * @file: Pointer to struct &file. 0713 * @cmd: Ioctl name. 0714 * @arg: Ioctl argument. 0715 * @func: function that will handle the ioctl 0716 * 0717 * .. note:: 0718 * 0719 * This routine should be used only inside the V4L2 core. 0720 */ 0721 long int video_usercopy(struct file *file, unsigned int cmd, 0722 unsigned long int arg, v4l2_kioctl func); 0723 0724 /** 0725 * video_ioctl2 - Handles a V4L2 ioctl. 0726 * 0727 * @file: Pointer to struct &file. 0728 * @cmd: Ioctl name. 0729 * @arg: Ioctl argument. 0730 * 0731 * Method used to hancle an ioctl. Should be used to fill the 0732 * &v4l2_ioctl_ops.unlocked_ioctl on all V4L2 drivers. 0733 */ 0734 long int video_ioctl2(struct file *file, 0735 unsigned int cmd, unsigned long int arg); 0736 0737 /* 0738 * The user space interpretation of the 'v4l2_event' differs 0739 * based on the 'time_t' definition on 32-bit architectures, so 0740 * the kernel has to handle both. 0741 * This is the old version for 32-bit architectures. 0742 */ 0743 struct v4l2_event_time32 { 0744 __u32 type; 0745 union { 0746 struct v4l2_event_vsync vsync; 0747 struct v4l2_event_ctrl ctrl; 0748 struct v4l2_event_frame_sync frame_sync; 0749 struct v4l2_event_src_change src_change; 0750 struct v4l2_event_motion_det motion_det; 0751 __u8 data[64]; 0752 } u; 0753 __u32 pending; 0754 __u32 sequence; 0755 struct old_timespec32 timestamp; 0756 __u32 id; 0757 __u32 reserved[8]; 0758 }; 0759 0760 #define VIDIOC_DQEVENT_TIME32 _IOR('V', 89, struct v4l2_event_time32) 0761 0762 struct v4l2_buffer_time32 { 0763 __u32 index; 0764 __u32 type; 0765 __u32 bytesused; 0766 __u32 flags; 0767 __u32 field; 0768 struct old_timeval32 timestamp; 0769 struct v4l2_timecode timecode; 0770 __u32 sequence; 0771 0772 /* memory location */ 0773 __u32 memory; 0774 union { 0775 __u32 offset; 0776 unsigned long userptr; 0777 struct v4l2_plane *planes; 0778 __s32 fd; 0779 } m; 0780 __u32 length; 0781 __u32 reserved2; 0782 union { 0783 __s32 request_fd; 0784 __u32 reserved; 0785 }; 0786 }; 0787 #define VIDIOC_QUERYBUF_TIME32 _IOWR('V', 9, struct v4l2_buffer_time32) 0788 #define VIDIOC_QBUF_TIME32 _IOWR('V', 15, struct v4l2_buffer_time32) 0789 #define VIDIOC_DQBUF_TIME32 _IOWR('V', 17, struct v4l2_buffer_time32) 0790 #define VIDIOC_PREPARE_BUF_TIME32 _IOWR('V', 93, struct v4l2_buffer_time32) 0791 0792 #endif /* _V4L2_IOCTL_H */
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