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