1 /* SPDX-License-Identifier: GPL-2.0 */ 2 /* 3 * 4 * V 4 L 2 D R I V E R H E L P E R A P I 5 * 6 * Moved from videodev2.h 7 * 8 * Some commonly needed functions for drivers (v4l2-common.o module) 9 */ 10 #ifndef _V4L2_IOCTL_H 11 #define _V4L2_IOCTL_H 12 13 #include <linux/poll.h> 14 #include <linux/fs.h> 15 #include <linux/mutex.h> 16 #include <linux/sched/signal.h> 17 #include <linux/compiler.h> /* need __user */ 18 #include <linux/videodev2.h> 19 20 struct v4l2_fh; 21 22 /** 23 * struct v4l2_ioctl_ops - describe operations for each V4L2 ioctl 24 * 25 * @vidioc_querycap: pointer to the function that implements 26 * :ref:`VIDIOC_QUERYCAP <vidioc_querycap>` ioctl 27 * @vidioc_enum_fmt_vid_cap: pointer to the function that implements 28 * :ref:`VIDIOC_ENUM_FMT <vidioc_enum_fmt>` ioctl logic 29 * for video capture in single and multi plane mode 30 * @vidioc_enum_fmt_vid_overlay: pointer to the function that implements 31 * :ref:`VIDIOC_ENUM_FMT <vidioc_enum_fmt>` ioctl logic 32 * for video overlay 33 * @vidioc_enum_fmt_vid_out: pointer to the function that implements 34 * :ref:`VIDIOC_ENUM_FMT <vidioc_enum_fmt>` ioctl logic 35 * for video output in single and multi plane mode 36 * @vidioc_enum_fmt_sdr_cap: pointer to the function that implements 37 * :ref:`VIDIOC_ENUM_FMT <vidioc_enum_fmt>` ioctl logic 38 * for Software Defined Radio capture 39 * @vidioc_enum_fmt_sdr_out: pointer to the function that implements 40 * :ref:`VIDIOC_ENUM_FMT <vidioc_enum_fmt>` ioctl logic 41 * for Software Defined Radio output 42 * @vidioc_enum_fmt_meta_cap: pointer to the function that implements 43 * :ref:`VIDIOC_ENUM_FMT <vidioc_enum_fmt>` ioctl logic 44 * for metadata capture 45 * @vidioc_enum_fmt_meta_out: pointer to the function that implements 46 * :ref:`VIDIOC_ENUM_FMT <vidioc_enum_fmt>` ioctl logic 47 * for metadata output 48 * @vidioc_g_fmt_vid_cap: pointer to the function that implements 49 * :ref:`VIDIOC_G_FMT <vidioc_g_fmt>` ioctl logic for video capture 50 * in single plane mode 51 * @vidioc_g_fmt_vid_overlay: pointer to the function that implements 52 * :ref:`VIDIOC_G_FMT <vidioc_g_fmt>` ioctl logic for video overlay 53 * @vidioc_g_fmt_vid_out: pointer to the function that implements 54 * :ref:`VIDIOC_G_FMT <vidioc_g_fmt>` ioctl logic for video out 55 * in single plane mode 56 * @vidioc_g_fmt_vid_out_overlay: pointer to the function that implements 57 * :ref:`VIDIOC_G_FMT <vidioc_g_fmt>` ioctl logic for video overlay output 58 * @vidioc_g_fmt_vbi_cap: pointer to the function that implements 59 * :ref:`VIDIOC_G_FMT <vidioc_g_fmt>` ioctl logic for raw VBI capture 60 * @vidioc_g_fmt_vbi_out: pointer to the function that implements 61 * :ref:`VIDIOC_G_FMT <vidioc_g_fmt>` ioctl logic for raw VBI output 62 * @vidioc_g_fmt_sliced_vbi_cap: pointer to the function that implements 63 * :ref:`VIDIOC_G_FMT <vidioc_g_fmt>` ioctl logic for sliced VBI capture 64 * @vidioc_g_fmt_sliced_vbi_out: pointer to the function that implements 65 * :ref:`VIDIOC_G_FMT <vidioc_g_fmt>` ioctl logic for sliced VBI output 66 * @vidioc_g_fmt_vid_cap_mplane: pointer to the function that implements 67 * :ref:`VIDIOC_G_FMT <vidioc_g_fmt>` ioctl logic for video capture 68 * in multiple plane mode 69 * @vidioc_g_fmt_vid_out_mplane: pointer to the function that implements 70 * :ref:`VIDIOC_G_FMT <vidioc_g_fmt>` ioctl logic for video out 71 * in multiplane plane mode 72 * @vidioc_g_fmt_sdr_cap: pointer to the function that implements 73 * :ref:`VIDIOC_G_FMT <vidioc_g_fmt>` ioctl logic for Software Defined 74 * Radio capture 75 * @vidioc_g_fmt_sdr_out: pointer to the function that implements 76 * :ref:`VIDIOC_G_FMT <vidioc_g_fmt>` ioctl logic for Software Defined 77 * Radio output 78 * @vidioc_g_fmt_meta_cap: pointer to the function that implements 79 * :ref:`VIDIOC_G_FMT <vidioc_g_fmt>` ioctl logic for metadata capture 80 * @vidioc_g_fmt_meta_out: pointer to the function that implements 81 * :ref:`VIDIOC_G_FMT <vidioc_g_fmt>` ioctl logic for metadata output 82 * @vidioc_s_fmt_vid_cap: pointer to the function that implements 83 * :ref:`VIDIOC_S_FMT <vidioc_g_fmt>` ioctl logic for video capture 84 * in single plane mode 85 * @vidioc_s_fmt_vid_overlay: pointer to the function that implements 86 * :ref:`VIDIOC_S_FMT <vidioc_g_fmt>` ioctl logic for video overlay 87 * @vidioc_s_fmt_vid_out: pointer to the function that implements 88 * :ref:`VIDIOC_S_FMT <vidioc_g_fmt>` ioctl logic for video out 89 * in single plane mode 90 * @vidioc_s_fmt_vid_out_overlay: pointer to the function that implements 91 * :ref:`VIDIOC_S_FMT <vidioc_g_fmt>` ioctl logic for video overlay output 92 * @vidioc_s_fmt_vbi_cap: pointer to the function that implements 93 * :ref:`VIDIOC_S_FMT <vidioc_g_fmt>` ioctl logic for raw VBI capture 94 * @vidioc_s_fmt_vbi_out: pointer to the function that implements 95 * :ref:`VIDIOC_S_FMT <vidioc_g_fmt>` ioctl logic for raw VBI output 96 * @vidioc_s_fmt_sliced_vbi_cap: pointer to the function that implements 97 * :ref:`VIDIOC_S_FMT <vidioc_g_fmt>` ioctl logic for sliced VBI capture 98 * @vidioc_s_fmt_sliced_vbi_out: pointer to the function that implements 99 * :ref:`VIDIOC_S_FMT <vidioc_g_fmt>` ioctl logic for sliced VBI output 100 * @vidioc_s_fmt_vid_cap_mplane: pointer to the function that implements 101 * :ref:`VIDIOC_S_FMT <vidioc_g_fmt>` ioctl logic for video capture 102 * in multiple plane mode 103 * @vidioc_s_fmt_vid_out_mplane: pointer to the function that implements 104 * :ref:`VIDIOC_S_FMT <vidioc_g_fmt>` ioctl logic for video out 105 * in multiplane plane mode 106 * @vidioc_s_fmt_sdr_cap: pointer to the function that implements 107 * :ref:`VIDIOC_S_FMT <vidioc_g_fmt>` ioctl logic for Software Defined 108 * Radio capture 109 * @vidioc_s_fmt_sdr_out: pointer to the function that implements 110 * :ref:`VIDIOC_S_FMT <vidioc_g_fmt>` ioctl logic for Software Defined 111 * Radio output 112 * @vidioc_s_fmt_meta_cap: pointer to the function that implements 113 * :ref:`VIDIOC_S_FMT <vidioc_g_fmt>` ioctl logic for metadata capture 114 * @vidioc_s_fmt_meta_out: pointer to the function that implements 115 * :ref:`VIDIOC_S_FMT <vidioc_g_fmt>` ioctl logic for metadata output 116 * @vidioc_try_fmt_vid_cap: pointer to the function that implements 117 * :ref:`VIDIOC_TRY_FMT <vidioc_g_fmt>` ioctl logic for video capture 118 * in single plane mode 119 * @vidioc_try_fmt_vid_overlay: pointer to the function that implements 120 * :ref:`VIDIOC_TRY_FMT <vidioc_g_fmt>` ioctl logic for video overlay 121 * @vidioc_try_fmt_vid_out: pointer to the function that implements 122 * :ref:`VIDIOC_TRY_FMT <vidioc_g_fmt>` ioctl logic for video out 123 * in single plane mode 124 * @vidioc_try_fmt_vid_out_overlay: pointer to the function that implements 125 * :ref:`VIDIOC_TRY_FMT <vidioc_g_fmt>` ioctl logic for video overlay 126 * output 127 * @vidioc_try_fmt_vbi_cap: pointer to the function that implements 128 * :ref:`VIDIOC_TRY_FMT <vidioc_g_fmt>` ioctl logic for raw VBI capture 129 * @vidioc_try_fmt_vbi_out: pointer to the function that implements 130 * :ref:`VIDIOC_TRY_FMT <vidioc_g_fmt>` ioctl logic for raw VBI output 131 * @vidioc_try_fmt_sliced_vbi_cap: pointer to the function that implements 132 * :ref:`VIDIOC_TRY_FMT <vidioc_g_fmt>` ioctl logic for sliced VBI 133 * capture 134 * @vidioc_try_fmt_sliced_vbi_out: pointer to the function that implements 135 * :ref:`VIDIOC_TRY_FMT <vidioc_g_fmt>` ioctl logic for sliced VBI output 136 * @vidioc_try_fmt_vid_cap_mplane: pointer to the function that implements 137 * :ref:`VIDIOC_TRY_FMT <vidioc_g_fmt>` ioctl logic for video capture 138 * in multiple plane mode 139 * @vidioc_try_fmt_vid_out_mplane: pointer to the function that implements 140 * :ref:`VIDIOC_TRY_FMT <vidioc_g_fmt>` ioctl logic for video out 141 * in multiplane plane mode 142 * @vidioc_try_fmt_sdr_cap: pointer to the function that implements 143 * :ref:`VIDIOC_TRY_FMT <vidioc_g_fmt>` ioctl logic for Software Defined 144 * Radio capture 145 * @vidioc_try_fmt_sdr_out: pointer to the function that implements 146 * :ref:`VIDIOC_TRY_FMT <vidioc_g_fmt>` ioctl logic for Software Defined 147 * Radio output 148 * @vidioc_try_fmt_meta_cap: pointer to the function that implements 149 * :ref:`VIDIOC_TRY_FMT <vidioc_g_fmt>` ioctl logic for metadata capture 150 * @vidioc_try_fmt_meta_out: pointer to the function that implements 151 * :ref:`VIDIOC_TRY_FMT <vidioc_g_fmt>` ioctl logic for metadata output 152 * @vidioc_reqbufs: pointer to the function that implements 153 * :ref:`VIDIOC_REQBUFS <vidioc_reqbufs>` ioctl 154 * @vidioc_querybuf: pointer to the function that implements 155 * :ref:`VIDIOC_QUERYBUF <vidioc_querybuf>` ioctl 156 * @vidioc_qbuf: pointer to the function that implements 157 * :ref:`VIDIOC_QBUF <vidioc_qbuf>` ioctl 158 * @vidioc_expbuf: pointer to the function that implements 159 * :ref:`VIDIOC_EXPBUF <vidioc_expbuf>` ioctl 160 * @vidioc_dqbuf: pointer to the function that implements 161 * :ref:`VIDIOC_DQBUF <vidioc_qbuf>` ioctl 162 * @vidioc_create_bufs: pointer to the function that implements 163 * :ref:`VIDIOC_CREATE_BUFS <vidioc_create_bufs>` ioctl 164 * @vidioc_prepare_buf: pointer to the function that implements 165 * :ref:`VIDIOC_PREPARE_BUF <vidioc_prepare_buf>` ioctl 166 * @vidioc_remove_bufs: pointer to the function that implements 167 * :ref:`VIDIOC_REMOVE_BUFS <vidioc_remove_bufs>` ioctl 168 * @vidioc_overlay: pointer to the function that implements 169 * :ref:`VIDIOC_OVERLAY <vidioc_overlay>` ioctl 170 * @vidioc_g_fbuf: pointer to the function that implements 171 * :ref:`VIDIOC_G_FBUF <vidioc_g_fbuf>` ioctl 172 * @vidioc_s_fbuf: pointer to the function that implements 173 * :ref:`VIDIOC_S_FBUF <vidioc_g_fbuf>` ioctl 174 * @vidioc_streamon: pointer to the function that implements 175 * :ref:`VIDIOC_STREAMON <vidioc_streamon>` ioctl 176 * @vidioc_streamoff: pointer to the function that implements 177 * :ref:`VIDIOC_STREAMOFF <vidioc_streamon>` ioctl 178 * @vidioc_g_std: pointer to the function that implements 179 * :ref:`VIDIOC_G_STD <vidioc_g_std>` ioctl 180 * @vidioc_s_std: pointer to the function that implements 181 * :ref:`VIDIOC_S_STD <vidioc_g_std>` ioctl 182 * @vidioc_querystd: pointer to the function that implements 183 * :ref:`VIDIOC_QUERYSTD <vidioc_querystd>` ioctl 184 * @vidioc_enum_input: pointer to the function that implements 185 * :ref:`VIDIOC_ENUM_INPUT <vidioc_g_input>` ioctl 186 * @vidioc_g_input: pointer to the function that implements 187 * :ref:`VIDIOC_G_INPUT <vidioc_g_input>` ioctl 188 * @vidioc_s_input: pointer to the function that implements 189 * :ref:`VIDIOC_S_INPUT <vidioc_g_input>` ioctl 190 * @vidioc_enum_output: pointer to the function that implements 191 * :ref:`VIDIOC_ENUM_OUTPUT <vidioc_g_output>` ioctl 192 * @vidioc_g_output: pointer to the function that implements 193 * :ref:`VIDIOC_G_OUTPUT <vidioc_g_output>` ioctl 194 * @vidioc_s_output: pointer to the function that implements 195 * :ref:`VIDIOC_S_OUTPUT <vidioc_g_output>` ioctl 196 * @vidioc_queryctrl: pointer to the function that implements 197 * :ref:`VIDIOC_QUERYCTRL <vidioc_queryctrl>` ioctl 198 * @vidioc_query_ext_ctrl: pointer to the function that implements 199 * :ref:`VIDIOC_QUERY_EXT_CTRL <vidioc_queryctrl>` ioctl 200 * @vidioc_g_ctrl: pointer to the function that implements 201 * :ref:`VIDIOC_G_CTRL <vidioc_g_ctrl>` ioctl 202 * @vidioc_s_ctrl: pointer to the function that implements 203 * :ref:`VIDIOC_S_CTRL <vidioc_g_ctrl>` ioctl 204 * @vidioc_g_ext_ctrls: pointer to the function that implements 205 * :ref:`VIDIOC_G_EXT_CTRLS <vidioc_g_ext_ctrls>` ioctl 206 * @vidioc_s_ext_ctrls: pointer to the function that implements 207 * :ref:`VIDIOC_S_EXT_CTRLS <vidioc_g_ext_ctrls>` ioctl 208 * @vidioc_try_ext_ctrls: pointer to the function that implements 209 * :ref:`VIDIOC_TRY_EXT_CTRLS <vidioc_g_ext_ctrls>` ioctl 210 * @vidioc_querymenu: pointer to the function that implements 211 * :ref:`VIDIOC_QUERYMENU <vidioc_queryctrl>` ioctl 212 * @vidioc_enumaudio: pointer to the function that implements 213 * :ref:`VIDIOC_ENUMAUDIO <vidioc_enumaudio>` ioctl 214 * @vidioc_g_audio: pointer to the function that implements 215 * :ref:`VIDIOC_G_AUDIO <vidioc_g_audio>` ioctl 216 * @vidioc_s_audio: pointer to the function that implements 217 * :ref:`VIDIOC_S_AUDIO <vidioc_g_audio>` ioctl 218 * @vidioc_enumaudout: pointer to the function that implements 219 * :ref:`VIDIOC_ENUMAUDOUT <vidioc_enumaudout>` ioctl 220 * @vidioc_g_audout: pointer to the function that implements 221 * :ref:`VIDIOC_G_AUDOUT <vidioc_g_audout>` ioctl 222 * @vidioc_s_audout: pointer to the function that implements 223 * :ref:`VIDIOC_S_AUDOUT <vidioc_g_audout>` ioctl 224 * @vidioc_g_modulator: pointer to the function that implements 225 * :ref:`VIDIOC_G_MODULATOR <vidioc_g_modulator>` ioctl 226 * @vidioc_s_modulator: pointer to the function that implements 227 * :ref:`VIDIOC_S_MODULATOR <vidioc_g_modulator>` ioctl 228 * @vidioc_g_pixelaspect: pointer to the function that implements 229 * the pixelaspect part of the :ref:`VIDIOC_CROPCAP <vidioc_cropcap>` ioctl 230 * @vidioc_g_selection: pointer to the function that implements 231 * :ref:`VIDIOC_G_SELECTION <vidioc_g_selection>` ioctl 232 * @vidioc_s_selection: pointer to the function that implements 233 * :ref:`VIDIOC_S_SELECTION <vidioc_g_selection>` ioctl 234 * @vidioc_g_jpegcomp: pointer to the function that implements 235 * :ref:`VIDIOC_G_JPEGCOMP <vidioc_g_jpegcomp>` ioctl 236 * @vidioc_s_jpegcomp: pointer to the function that implements 237 * :ref:`VIDIOC_S_JPEGCOMP <vidioc_g_jpegcomp>` ioctl 238 * @vidioc_g_enc_index: pointer to the function that implements 239 * :ref:`VIDIOC_G_ENC_INDEX <vidioc_g_enc_index>` ioctl 240 * @vidioc_encoder_cmd: pointer to the function that implements 241 * :ref:`VIDIOC_ENCODER_CMD <vidioc_encoder_cmd>` ioctl 242 * @vidioc_try_encoder_cmd: pointer to the function that implements 243 * :ref:`VIDIOC_TRY_ENCODER_CMD <vidioc_encoder_cmd>` ioctl 244 * @vidioc_decoder_cmd: pointer to the function that implements 245 * :ref:`VIDIOC_DECODER_CMD <vidioc_decoder_cmd>` ioctl 246 * @vidioc_try_decoder_cmd: pointer to the function that implements 247 * :ref:`VIDIOC_TRY_DECODER_CMD <vidioc_decoder_cmd>` ioctl 248 * @vidioc_g_parm: pointer to the function that implements 249 * :ref:`VIDIOC_G_PARM <vidioc_g_parm>` ioctl 250 * @vidioc_s_parm: pointer to the function that implements 251 * :ref:`VIDIOC_S_PARM <vidioc_g_parm>` ioctl 252 * @vidioc_g_tuner: pointer to the function that implements 253 * :ref:`VIDIOC_G_TUNER <vidioc_g_tuner>` ioctl 254 * @vidioc_s_tuner: pointer to the function that implements 255 * :ref:`VIDIOC_S_TUNER <vidioc_g_tuner>` ioctl 256 * @vidioc_g_frequency: pointer to the function that implements 257 * :ref:`VIDIOC_G_FREQUENCY <vidioc_g_frequency>` ioctl 258 * @vidioc_s_frequency: pointer to the function that implements 259 * :ref:`VIDIOC_S_FREQUENCY <vidioc_g_frequency>` ioctl 260 * @vidioc_enum_freq_bands: pointer to the function that implements 261 * :ref:`VIDIOC_ENUM_FREQ_BANDS <vidioc_enum_freq_bands>` ioctl 262 * @vidioc_g_sliced_vbi_cap: pointer to the function that implements 263 * :ref:`VIDIOC_G_SLICED_VBI_CAP <vidioc_g_sliced_vbi_cap>` ioctl 264 * @vidioc_log_status: pointer to the function that implements 265 * :ref:`VIDIOC_LOG_STATUS <vidioc_log_status>` ioctl 266 * @vidioc_s_hw_freq_seek: pointer to the function that implements 267 * :ref:`VIDIOC_S_HW_FREQ_SEEK <vidioc_s_hw_freq_seek>` ioctl 268 * @vidioc_g_register: pointer to the function that implements 269 * :ref:`VIDIOC_DBG_G_REGISTER <vidioc_dbg_g_register>` ioctl 270 * @vidioc_s_register: pointer to the function that implements 271 * :ref:`VIDIOC_DBG_S_REGISTER <vidioc_dbg_g_register>` ioctl 272 * @vidioc_g_chip_info: pointer to the function that implements 273 * :ref:`VIDIOC_DBG_G_CHIP_INFO <vidioc_dbg_g_chip_info>` ioctl 274 * @vidioc_enum_framesizes: pointer to the function that implements 275 * :ref:`VIDIOC_ENUM_FRAMESIZES <vidioc_enum_framesizes>` ioctl 276 * @vidioc_enum_frameintervals: pointer to the function that implements 277 * :ref:`VIDIOC_ENUM_FRAMEINTERVALS <vidioc_enum_frameintervals>` ioctl 278 * @vidioc_s_dv_timings: pointer to the function that implements 279 * :ref:`VIDIOC_S_DV_TIMINGS <vidioc_g_dv_timings>` ioctl 280 * @vidioc_g_dv_timings: pointer to the function that implements 281 * :ref:`VIDIOC_G_DV_TIMINGS <vidioc_g_dv_timings>` ioctl 282 * @vidioc_query_dv_timings: pointer to the function that implements 283 * :ref:`VIDIOC_QUERY_DV_TIMINGS <vidioc_query_dv_timings>` ioctl 284 * @vidioc_enum_dv_timings: pointer to the function that implements 285 * :ref:`VIDIOC_ENUM_DV_TIMINGS <vidioc_enum_dv_timings>` ioctl 286 * @vidioc_dv_timings_cap: pointer to the function that implements 287 * :ref:`VIDIOC_DV_TIMINGS_CAP <vidioc_dv_timings_cap>` ioctl 288 * @vidioc_g_edid: pointer to the function that implements 289 * :ref:`VIDIOC_G_EDID <vidioc_g_edid>` ioctl 290 * @vidioc_s_edid: pointer to the function that implements 291 * :ref:`VIDIOC_S_EDID <vidioc_g_edid>` ioctl 292 * @vidioc_subscribe_event: pointer to the function that implements 293 * :ref:`VIDIOC_SUBSCRIBE_EVENT <vidioc_subscribe_event>` ioctl 294 * @vidioc_unsubscribe_event: pointer to the function that implements 295 * :ref:`VIDIOC_UNSUBSCRIBE_EVENT <vidioc_unsubscribe_event>` ioctl 296 * @vidioc_default: pointed used to allow other ioctls 297 */ 298 struct v4l2_ioctl_ops { 299 /* ioctl callbacks */ 300 301 /* VIDIOC_QUERYCAP handler */ 302 int (*vidioc_querycap)(struct file *file, void *fh, 303 struct v4l2_capability *cap); 304 305 /* VIDIOC_ENUM_FMT handlers */ 306 int (*vidioc_enum_fmt_vid_cap)(struct file *file, void *fh, 307 struct v4l2_fmtdesc *f); 308 int (*vidioc_enum_fmt_vid_overlay)(struct file *file, void *fh, 309 struct v4l2_fmtdesc *f); 310 int (*vidioc_enum_fmt_vid_out)(struct file *file, void *fh, 311 struct v4l2_fmtdesc *f); 312 int (*vidioc_enum_fmt_sdr_cap)(struct file *file, void *fh, 313 struct v4l2_fmtdesc *f); 314 int (*vidioc_enum_fmt_sdr_out)(struct file *file, void *fh, 315 struct v4l2_fmtdesc *f); 316 int (*vidioc_enum_fmt_meta_cap)(struct file *file, void *fh, 317 struct v4l2_fmtdesc *f); 318 int (*vidioc_enum_fmt_meta_out)(struct file *file, void *fh, 319 struct v4l2_fmtdesc *f); 320 321 /* VIDIOC_G_FMT handlers */ 322 int (*vidioc_g_fmt_vid_cap)(struct file *file, void *fh, 323 struct v4l2_format *f); 324 int (*vidioc_g_fmt_vid_overlay)(struct file *file, void *fh, 325 struct v4l2_format *f); 326 int (*vidioc_g_fmt_vid_out)(struct file *file, void *fh, 327 struct v4l2_format *f); 328 int (*vidioc_g_fmt_vid_out_overlay)(struct file *file, void *fh, 329 struct v4l2_format *f); 330 int (*vidioc_g_fmt_vbi_cap)(struct file *file, void *fh, 331 struct v4l2_format *f); 332 int (*vidioc_g_fmt_vbi_out)(struct file *file, void *fh, 333 struct v4l2_format *f); 334 int (*vidioc_g_fmt_sliced_vbi_cap)(struct file *file, void *fh, 335 struct v4l2_format *f); 336 int (*vidioc_g_fmt_sliced_vbi_out)(struct file *file, void *fh, 337 struct v4l2_format *f); 338 int (*vidioc_g_fmt_vid_cap_mplane)(struct file *file, void *fh, 339 struct v4l2_format *f); 340 int (*vidioc_g_fmt_vid_out_mplane)(struct file *file, void *fh, 341 struct v4l2_format *f); 342 int (*vidioc_g_fmt_sdr_cap)(struct file *file, void *fh, 343 struct v4l2_format *f); 344 int (*vidioc_g_fmt_sdr_out)(struct file *file, void *fh, 345 struct v4l2_format *f); 346 int (*vidioc_g_fmt_meta_cap)(struct file *file, void *fh, 347 struct v4l2_format *f); 348 int (*vidioc_g_fmt_meta_out)(struct file *file, void *fh, 349 struct v4l2_format *f); 350 351 /* VIDIOC_S_FMT handlers */ 352 int (*vidioc_s_fmt_vid_cap)(struct file *file, void *fh, 353 struct v4l2_format *f); 354 int (*vidioc_s_fmt_vid_overlay)(struct file *file, void *fh, 355 struct v4l2_format *f); 356 int (*vidioc_s_fmt_vid_out)(struct file *file, void *fh, 357 struct v4l2_format *f); 358 int (*vidioc_s_fmt_vid_out_overlay)(struct file *file, void *fh, 359 struct v4l2_format *f); 360 int (*vidioc_s_fmt_vbi_cap)(struct file *file, void *fh, 361 struct v4l2_format *f); 362 int (*vidioc_s_fmt_vbi_out)(struct file *file, void *fh, 363 struct v4l2_format *f); 364 int (*vidioc_s_fmt_sliced_vbi_cap)(struct file *file, void *fh, 365 struct v4l2_format *f); 366 int (*vidioc_s_fmt_sliced_vbi_out)(struct file *file, void *fh, 367 struct v4l2_format *f); 368 int (*vidioc_s_fmt_vid_cap_mplane)(struct file *file, void *fh, 369 struct v4l2_format *f); 370 int (*vidioc_s_fmt_vid_out_mplane)(struct file *file, void *fh, 371 struct v4l2_format *f); 372 int (*vidioc_s_fmt_sdr_cap)(struct file *file, void *fh, 373 struct v4l2_format *f); 374 int (*vidioc_s_fmt_sdr_out)(struct file *file, void *fh, 375 struct v4l2_format *f); 376 int (*vidioc_s_fmt_meta_cap)(struct file *file, void *fh, 377 struct v4l2_format *f); 378 int (*vidioc_s_fmt_meta_out)(struct file *file, void *fh, 379 struct v4l2_format *f); 380 381 /* VIDIOC_TRY_FMT handlers */ 382 int (*vidioc_try_fmt_vid_cap)(struct file *file, void *fh, 383 struct v4l2_format *f); 384 int (*vidioc_try_fmt_vid_overlay)(struct file *file, void *fh, 385 struct v4l2_format *f); 386 int (*vidioc_try_fmt_vid_out)(struct file *file, void *fh, 387 struct v4l2_format *f); 388 int (*vidioc_try_fmt_vid_out_overlay)(struct file *file, void *fh, 389 struct v4l2_format *f); 390 int (*vidioc_try_fmt_vbi_cap)(struct file *file, void *fh, 391 struct v4l2_format *f); 392 int (*vidioc_try_fmt_vbi_out)(struct file *file, void *fh, 393 struct v4l2_format *f); 394 int (*vidioc_try_fmt_sliced_vbi_cap)(struct file *file, void *fh, 395 struct v4l2_format *f); 396 int (*vidioc_try_fmt_sliced_vbi_out)(struct file *file, void *fh, 397 struct v4l2_format *f); 398 int (*vidioc_try_fmt_vid_cap_mplane)(struct file *file, void *fh, 399 struct v4l2_format *f); 400 int (*vidioc_try_fmt_vid_out_mplane)(struct file *file, void *fh, 401 struct v4l2_format *f); 402 int (*vidioc_try_fmt_sdr_cap)(struct file *file, void *fh, 403 struct v4l2_format *f); 404 int (*vidioc_try_fmt_sdr_out)(struct file *file, void *fh, 405 struct v4l2_format *f); 406 int (*vidioc_try_fmt_meta_cap)(struct file *file, void *fh, 407 struct v4l2_format *f); 408 int (*vidioc_try_fmt_meta_out)(struct file *file, void *fh, 409 struct v4l2_format *f); 410 411 /* Buffer handlers */ 412 int (*vidioc_reqbufs)(struct file *file, void *fh, 413 struct v4l2_requestbuffers *b); 414 int (*vidioc_querybuf)(struct file *file, void *fh, 415 struct v4l2_buffer *b); 416 int (*vidioc_qbuf)(struct file *file, void *fh, 417 struct v4l2_buffer *b); 418 int (*vidioc_expbuf)(struct file *file, void *fh, 419 struct v4l2_exportbuffer *e); 420 int (*vidioc_dqbuf)(struct file *file, void *fh, 421 struct v4l2_buffer *b); 422 423 int (*vidioc_create_bufs)(struct file *file, void *fh, 424 struct v4l2_create_buffers *b); 425 int (*vidioc_prepare_buf)(struct file *file, void *fh, 426 struct v4l2_buffer *b); 427 int (*vidioc_remove_bufs)(struct file *file, void *fh, 428 struct v4l2_remove_buffers *d); 429 430 int (*vidioc_overlay)(struct file *file, void *fh, unsigned int i); 431 int (*vidioc_g_fbuf)(struct file *file, void *fh, 432 struct v4l2_framebuffer *a); 433 int (*vidioc_s_fbuf)(struct file *file, void *fh, 434 const struct v4l2_framebuffer *a); 435 436 /* Stream on/off */ 437 int (*vidioc_streamon)(struct file *file, void *fh, 438 enum v4l2_buf_type i); 439 int (*vidioc_streamoff)(struct file *file, void *fh, 440 enum v4l2_buf_type i); 441 442 /* 443 * Standard handling 444 * 445 * Note: ENUMSTD is handled by videodev.c 446 */ 447 int (*vidioc_g_std)(struct file *file, void *fh, v4l2_std_id *norm); 448 int (*vidioc_s_std)(struct file *file, void *fh, v4l2_std_id norm); 449 int (*vidioc_querystd)(struct file *file, void *fh, v4l2_std_id *a); 450 451 /* Input handling */ 452 int (*vidioc_enum_input)(struct file *file, void *fh, 453 struct v4l2_input *inp); 454 int (*vidioc_g_input)(struct file *file, void *fh, unsigned int *i); 455 int (*vidioc_s_input)(struct file *file, void *fh, unsigned int i); 456 457 /* Output handling */ 458 int (*vidioc_enum_output)(struct file *file, void *fh, 459 struct v4l2_output *a); 460 int (*vidioc_g_output)(struct file *file, void *fh, unsigned int *i); 461 int (*vidioc_s_output)(struct file *file, void *fh, unsigned int i); 462 463 /* Control handling */ 464 int (*vidioc_queryctrl)(struct file *file, void *fh, 465 struct v4l2_queryctrl *a); 466 int (*vidioc_query_ext_ctrl)(struct file *file, void *fh, 467 struct v4l2_query_ext_ctrl *a); 468 int (*vidioc_g_ctrl)(struct file *file, void *fh, 469 struct v4l2_control *a); 470 int (*vidioc_s_ctrl)(struct file *file, void *fh, 471 struct v4l2_control *a); 472 int (*vidioc_g_ext_ctrls)(struct file *file, void *fh, 473 struct v4l2_ext_controls *a); 474 int (*vidioc_s_ext_ctrls)(struct file *file, void *fh, 475 struct v4l2_ext_controls *a); 476 int (*vidioc_try_ext_ctrls)(struct file *file, void *fh, 477 struct v4l2_ext_controls *a); 478 int (*vidioc_querymenu)(struct file *file, void *fh, 479 struct v4l2_querymenu *a); 480 481 /* Audio ioctls */ 482 int (*vidioc_enumaudio)(struct file *file, void *fh, 483 struct v4l2_audio *a); 484 int (*vidioc_g_audio)(struct file *file, void *fh, 485 struct v4l2_audio *a); 486 int (*vidioc_s_audio)(struct file *file, void *fh, 487 const struct v4l2_audio *a); 488 489 /* Audio out ioctls */ 490 int (*vidioc_enumaudout)(struct file *file, void *fh, 491 struct v4l2_audioout *a); 492 int (*vidioc_g_audout)(struct file *file, void *fh, 493 struct v4l2_audioout *a); 494 int (*vidioc_s_audout)(struct file *file, void *fh, 495 const struct v4l2_audioout *a); 496 int (*vidioc_g_modulator)(struct file *file, void *fh, 497 struct v4l2_modulator *a); 498 int (*vidioc_s_modulator)(struct file *file, void *fh, 499 const struct v4l2_modulator *a); 500 /* Crop ioctls */ 501 int (*vidioc_g_pixelaspect)(struct file *file, void *fh, 502 int buf_type, struct v4l2_fract *aspect); 503 int (*vidioc_g_selection)(struct file *file, void *fh, 504 struct v4l2_selection *s); 505 int (*vidioc_s_selection)(struct file *file, void *fh, 506 struct v4l2_selection *s); 507 /* Compression ioctls */ 508 int (*vidioc_g_jpegcomp)(struct file *file, void *fh, 509 struct v4l2_jpegcompression *a); 510 int (*vidioc_s_jpegcomp)(struct file *file, void *fh, 511 const struct v4l2_jpegcompression *a); 512 int (*vidioc_g_enc_index)(struct file *file, void *fh, 513 struct v4l2_enc_idx *a); 514 int (*vidioc_encoder_cmd)(struct file *file, void *fh, 515 struct v4l2_encoder_cmd *a); 516 int (*vidioc_try_encoder_cmd)(struct file *file, void *fh, 517 struct v4l2_encoder_cmd *a); 518 int (*vidioc_decoder_cmd)(struct file *file, void *fh, 519 struct v4l2_decoder_cmd *a); 520 int (*vidioc_try_decoder_cmd)(struct file *file, void *fh, 521 struct v4l2_decoder_cmd *a); 522 523 /* Stream type-dependent parameter ioctls */ 524 int (*vidioc_g_parm)(struct file *file, void *fh, 525 struct v4l2_streamparm *a); 526 int (*vidioc_s_parm)(struct file *file, void *fh, 527 struct v4l2_streamparm *a); 528 529 /* Tuner ioctls */ 530 int (*vidioc_g_tuner)(struct file *file, void *fh, 531 struct v4l2_tuner *a); 532 int (*vidioc_s_tuner)(struct file *file, void *fh, 533 const struct v4l2_tuner *a); 534 int (*vidioc_g_frequency)(struct file *file, void *fh, 535 struct v4l2_frequency *a); 536 int (*vidioc_s_frequency)(struct file *file, void *fh, 537 const struct v4l2_frequency *a); 538 int (*vidioc_enum_freq_bands)(struct file *file, void *fh, 539 struct v4l2_frequency_band *band); 540 541 /* Sliced VBI cap */ 542 int (*vidioc_g_sliced_vbi_cap)(struct file *file, void *fh, 543 struct v4l2_sliced_vbi_cap *a); 544 545 /* Log status ioctl */ 546 int (*vidioc_log_status)(struct file *file, void *fh); 547 548 int (*vidioc_s_hw_freq_seek)(struct file *file, void *fh, 549 const struct v4l2_hw_freq_seek *a); 550 551 /* Debugging ioctls */ 552 #ifdef CONFIG_VIDEO_ADV_DEBUG 553 int (*vidioc_g_register)(struct file *file, void *fh, 554 struct v4l2_dbg_register *reg); 555 int (*vidioc_s_register)(struct file *file, void *fh, 556 const struct v4l2_dbg_register *reg); 557 558 int (*vidioc_g_chip_info)(struct file *file, void *fh, 559 struct v4l2_dbg_chip_info *chip); 560 #endif 561 562 int (*vidioc_enum_framesizes)(struct file *file, void *fh, 563 struct v4l2_frmsizeenum *fsize); 564 565 int (*vidioc_enum_frameintervals)(struct file *file, void *fh, 566 struct v4l2_frmivalenum *fival); 567 568 /* DV Timings IOCTLs */ 569 int (*vidioc_s_dv_timings)(struct file *file, void *fh, 570 struct v4l2_dv_timings *timings); 571 int (*vidioc_g_dv_timings)(struct file *file, void *fh, 572 struct v4l2_dv_timings *timings); 573 int (*vidioc_query_dv_timings)(struct file *file, void *fh, 574 struct v4l2_dv_timings *timings); 575 int (*vidioc_enum_dv_timings)(struct file *file, void *fh, 576 struct v4l2_enum_dv_timings *timings); 577 int (*vidioc_dv_timings_cap)(struct file *file, void *fh, 578 struct v4l2_dv_timings_cap *cap); 579 int (*vidioc_g_edid)(struct file *file, void *fh, 580 struct v4l2_edid *edid); 581 int (*vidioc_s_edid)(struct file *file, void *fh, 582 struct v4l2_edid *edid); 583 584 int (*vidioc_subscribe_event)(struct v4l2_fh *fh, 585 const struct v4l2_event_subscription *sub); 586 int (*vidioc_unsubscribe_event)(struct v4l2_fh *fh, 587 const struct v4l2_event_subscription *sub); 588 589 /* For other private ioctls */ 590 long (*vidioc_default)(struct file *file, void *fh, 591 bool valid_prio, unsigned int cmd, void *arg); 592 }; 593 594 595 /* v4l debugging and diagnostics */ 596 597 /* Device debug flags to be used with the video device debug attribute */ 598 599 /* Just log the ioctl name + error code */ 600 #define V4L2_DEV_DEBUG_IOCTL 0x01 601 /* Log the ioctl name arguments + error code */ 602 #define V4L2_DEV_DEBUG_IOCTL_ARG 0x02 603 /* Log the file operations open, release, mmap and get_unmapped_area */ 604 #define V4L2_DEV_DEBUG_FOP 0x04 605 /* Log the read and write file operations and the VIDIOC_(D)QBUF ioctls */ 606 #define V4L2_DEV_DEBUG_STREAMING 0x08 607 /* Log poll() */ 608 #define V4L2_DEV_DEBUG_POLL 0x10 609 /* Log controls */ 610 #define V4L2_DEV_DEBUG_CTRL 0x20 611 612 /* Video standard functions */ 613 614 /** 615 * v4l2_norm_to_name - Ancillary routine to analog TV standard name from its ID. 616 * 617 * @id: analog TV standard ID. 618 * 619 * Return: returns a string with the name of the analog TV standard. 620 * If the standard is not found or if @id points to multiple standard, 621 * it returns "Unknown". 622 */ 623 const char *v4l2_norm_to_name(v4l2_std_id id); 624 625 /** 626 * v4l2_video_std_frame_period - Ancillary routine that fills a 627 * struct &v4l2_fract pointer with the default framerate fraction. 628 * 629 * @id: analog TV standard ID. 630 * @frameperiod: struct &v4l2_fract pointer to be filled 631 * 632 */ 633 void v4l2_video_std_frame_period(int id, struct v4l2_fract *frameperiod); 634 635 /** 636 * v4l2_video_std_construct - Ancillary routine that fills in the fields of 637 * a &v4l2_standard structure according to the @id parameter. 638 * 639 * @vs: struct &v4l2_standard pointer to be filled 640 * @id: analog TV standard ID. 641 * @name: name of the standard to be used 642 * 643 * .. note:: 644 * 645 * This ancillary routine is obsolete. Shouldn't be used on newer drivers. 646 */ 647 int v4l2_video_std_construct(struct v4l2_standard *vs, 648 int id, const char *name); 649 650 /** 651 * v4l_video_std_enumstd - Ancillary routine that fills in the fields of 652 * a &v4l2_standard structure according to the @id and @vs->index 653 * parameters. 654 * 655 * @vs: struct &v4l2_standard pointer to be filled. 656 * @id: analog TV standard ID. 657 * 658 */ 659 int v4l_video_std_enumstd(struct v4l2_standard *vs, v4l2_std_id id); 660 661 /** 662 * v4l_printk_ioctl - Ancillary routine that prints the ioctl in a 663 * human-readable format. 664 * 665 * @prefix: prefix to be added at the ioctl prints. 666 * @cmd: ioctl name 667 * 668 * .. note:: 669 * 670 * If prefix != %NULL, then it will issue a 671 * ``printk(KERN_DEBUG "%s: ", prefix)`` first. 672 */ 673 void v4l_printk_ioctl(const char *prefix, unsigned int cmd); 674 675 struct video_device; 676 677 /* names for fancy debug output */ 678 extern const char *v4l2_field_names[]; 679 extern const char *v4l2_type_names[]; 680 681 #ifdef CONFIG_COMPAT 682 /** 683 * v4l2_compat_ioctl32 -32 Bits compatibility layer for 64 bits processors 684 * 685 * @file: Pointer to struct &file. 686 * @cmd: Ioctl name. 687 * @arg: Ioctl argument. 688 */ 689 long int v4l2_compat_ioctl32(struct file *file, unsigned int cmd, 690 unsigned long arg); 691 #endif 692 693 unsigned int v4l2_compat_translate_cmd(unsigned int cmd); 694 int v4l2_compat_get_user(void __user *arg, void *parg, unsigned int cmd); 695 int v4l2_compat_put_user(void __user *arg, void *parg, unsigned int cmd); 696 int v4l2_compat_get_array_args(struct file *file, void *mbuf, 697 void __user *user_ptr, size_t array_size, 698 unsigned int cmd, void *arg); 699 int v4l2_compat_put_array_args(struct file *file, void __user *user_ptr, 700 void *mbuf, size_t array_size, 701 unsigned int cmd, void *arg); 702 703 /** 704 * typedef v4l2_kioctl - Typedef used to pass an ioctl handler. 705 * 706 * @file: Pointer to struct &file. 707 * @cmd: Ioctl name. 708 * @arg: Ioctl argument. 709 */ 710 typedef long (*v4l2_kioctl)(struct file *file, unsigned int cmd, void *arg); 711 712 /** 713 * video_usercopy - copies data from/to userspace memory when an ioctl is 714 * issued. 715 * 716 * @file: Pointer to struct &file. 717 * @cmd: Ioctl name. 718 * @arg: Ioctl argument. 719 * @func: function that will handle the ioctl 720 * 721 * .. note:: 722 * 723 * This routine should be used only inside the V4L2 core. 724 */ 725 long int video_usercopy(struct file *file, unsigned int cmd, 726 unsigned long int arg, v4l2_kioctl func); 727 728 /** 729 * video_ioctl2 - Handles a V4L2 ioctl. 730 * 731 * @file: Pointer to struct &file. 732 * @cmd: Ioctl name. 733 * @arg: Ioctl argument. 734 * 735 * Method used to hancle an ioctl. Should be used to fill the 736 * &v4l2_ioctl_ops.unlocked_ioctl on all V4L2 drivers. 737 */ 738 long int video_ioctl2(struct file *file, 739 unsigned int cmd, unsigned long int arg); 740 741 /* 742 * The user space interpretation of the 'v4l2_event' differs 743 * based on the 'time_t' definition on 32-bit architectures, so 744 * the kernel has to handle both. 745 * This is the old version for 32-bit architectures. 746 */ 747 struct v4l2_event_time32 { 748 __u32 type; 749 union { 750 struct v4l2_event_vsync vsync; 751 struct v4l2_event_ctrl ctrl; 752 struct v4l2_event_frame_sync frame_sync; 753 struct v4l2_event_src_change src_change; 754 struct v4l2_event_motion_det motion_det; 755 __u8 data[64]; 756 } u; 757 __u32 pending; 758 __u32 sequence; 759 struct old_timespec32 timestamp; 760 __u32 id; 761 __u32 reserved[8]; 762 }; 763 764 #define VIDIOC_DQEVENT_TIME32 _IOR('V', 89, struct v4l2_event_time32) 765 766 struct v4l2_buffer_time32 { 767 __u32 index; 768 __u32 type; 769 __u32 bytesused; 770 __u32 flags; 771 __u32 field; 772 struct old_timeval32 timestamp; 773 struct v4l2_timecode timecode; 774 __u32 sequence; 775 776 /* memory location */ 777 __u32 memory; 778 union { 779 __u32 offset; 780 unsigned long userptr; 781 struct v4l2_plane *planes; 782 __s32 fd; 783 } m; 784 __u32 length; 785 __u32 reserved2; 786 union { 787 __s32 request_fd; 788 __u32 reserved; 789 }; 790 }; 791 #define VIDIOC_QUERYBUF_TIME32 _IOWR('V', 9, struct v4l2_buffer_time32) 792 #define VIDIOC_QBUF_TIME32 _IOWR('V', 15, struct v4l2_buffer_time32) 793 #define VIDIOC_DQBUF_TIME32 _IOWR('V', 17, struct v4l2_buffer_time32) 794 #define VIDIOC_PREPARE_BUF_TIME32 _IOWR('V', 93, struct v4l2_buffer_time32) 795 796 #endif /* _V4L2_IOCTL_H */ 797