1/* 2 * 3 * V 4 L 2 D R I V E R H E L P E R A P I 4 * 5 * Moved from videodev2.h 6 * 7 * Some commonly needed functions for drivers (v4l2-common.o module) 8 */ 9#ifndef _V4L2_IOCTL_H 10#define _V4L2_IOCTL_H 11 12#include <linux/poll.h> 13#include <linux/fs.h> 14#include <linux/mutex.h> 15#include <linux/compiler.h> /* need __user */ 16#include <linux/videodev2.h> 17 18struct v4l2_fh; 19 20/** 21 * struct v4l2_ioctl_ops - describe operations for each V4L2 ioctl 22 * 23 * @vidioc_querycap: pointer to the function that implements 24 * :ref:`VIDIOC_QUERYCAP <vidioc_querycap>` ioctl 25 * @vidioc_enum_fmt_vid_cap: pointer to the function that implements 26 * :ref:`VIDIOC_ENUM_FMT <vidioc_enum_fmt>` ioctl logic 27 * for video capture in single plane mode 28 * @vidioc_enum_fmt_vid_overlay: pointer to the function that implements 29 * :ref:`VIDIOC_ENUM_FMT <vidioc_enum_fmt>` ioctl logic 30 * for video overlay 31 * @vidioc_enum_fmt_vid_out: pointer to the function that implements 32 * :ref:`VIDIOC_ENUM_FMT <vidioc_enum_fmt>` ioctl logic 33 * for video output in single plane mode 34 * @vidioc_enum_fmt_vid_cap_mplane: pointer to the function that implements 35 * :ref:`VIDIOC_ENUM_FMT <vidioc_enum_fmt>` ioctl logic 36 * for video capture in multiplane mode 37 * @vidioc_enum_fmt_vid_out_mplane: pointer to the function that implements 38 * :ref:`VIDIOC_ENUM_FMT <vidioc_enum_fmt>` ioctl logic 39 * for video output in multiplane mode 40 * @vidioc_enum_fmt_sdr_cap: pointer to the function that implements 41 * :ref:`VIDIOC_ENUM_FMT <vidioc_enum_fmt>` ioctl logic 42 * for Software Defined Radio capture 43 * @vidioc_enum_fmt_sdr_out: pointer to the function that implements 44 * :ref:`VIDIOC_ENUM_FMT <vidioc_enum_fmt>` ioctl logic 45 * for Software Defined Radio output 46 * @vidioc_g_fmt_vid_cap: pointer to the function that implements 47 * :ref:`VIDIOC_G_FMT <vidioc_g_fmt>` ioctl logic for video capture 48 * in single plane mode 49 * @vidioc_g_fmt_vid_overlay: pointer to the function that implements 50 * :ref:`VIDIOC_G_FMT <vidioc_g_fmt>` ioctl logic for video overlay 51 * @vidioc_g_fmt_vid_out: pointer to the function that implements 52 * :ref:`VIDIOC_G_FMT <vidioc_g_fmt>` ioctl logic for video out 53 * in single plane mode 54 * @vidioc_g_fmt_vid_out_overlay: pointer to the function that implements 55 * :ref:`VIDIOC_G_FMT <vidioc_g_fmt>` ioctl logic for video overlay output 56 * @vidioc_g_fmt_vbi_cap: pointer to the function that implements 57 * :ref:`VIDIOC_G_FMT <vidioc_g_fmt>` ioctl logic for raw VBI capture 58 * @vidioc_g_fmt_vbi_out: pointer to the function that implements 59 * :ref:`VIDIOC_G_FMT <vidioc_g_fmt>` ioctl logic for raw VBI output 60 * @vidioc_g_fmt_sliced_vbi_cap: pointer to the function that implements 61 * :ref:`VIDIOC_G_FMT <vidioc_g_fmt>` ioctl logic for sliced VBI capture 62 * @vidioc_g_fmt_sliced_vbi_out: pointer to the function that implements 63 * :ref:`VIDIOC_G_FMT <vidioc_g_fmt>` ioctl logic for sliced VBI output 64 * @vidioc_g_fmt_vid_cap_mplane: pointer to the function that implements 65 * :ref:`VIDIOC_G_FMT <vidioc_g_fmt>` ioctl logic for video capture 66 * in multiple plane mode 67 * @vidioc_g_fmt_vid_out_mplane: pointer to the function that implements 68 * :ref:`VIDIOC_G_FMT <vidioc_g_fmt>` ioctl logic for video out 69 * in multiplane plane mode 70 * @vidioc_g_fmt_sdr_cap: pointer to the function that implements 71 * :ref:`VIDIOC_G_FMT <vidioc_g_fmt>` ioctl logic for Software Defined 72 * Radio capture 73 * @vidioc_g_fmt_sdr_out: pointer to the function that implements 74 * :ref:`VIDIOC_G_FMT <vidioc_g_fmt>` ioctl logic for Software Defined 75 * Radio output 76 * @vidioc_s_fmt_vid_cap: pointer to the function that implements 77 * :ref:`VIDIOC_S_FMT <vidioc_g_fmt>` ioctl logic for video capture 78 * in single plane mode 79 * @vidioc_s_fmt_vid_overlay: pointer to the function that implements 80 * :ref:`VIDIOC_S_FMT <vidioc_g_fmt>` ioctl logic for video overlay 81 * @vidioc_s_fmt_vid_out: pointer to the function that implements 82 * :ref:`VIDIOC_S_FMT <vidioc_g_fmt>` ioctl logic for video out 83 * in single plane mode 84 * @vidioc_s_fmt_vid_out_overlay: pointer to the function that implements 85 * :ref:`VIDIOC_S_FMT <vidioc_g_fmt>` ioctl logic for video overlay output 86 * @vidioc_s_fmt_vbi_cap: pointer to the function that implements 87 * :ref:`VIDIOC_S_FMT <vidioc_g_fmt>` ioctl logic for raw VBI capture 88 * @vidioc_s_fmt_vbi_out: pointer to the function that implements 89 * :ref:`VIDIOC_S_FMT <vidioc_g_fmt>` ioctl logic for raw VBI output 90 * @vidioc_s_fmt_sliced_vbi_cap: pointer to the function that implements 91 * :ref:`VIDIOC_S_FMT <vidioc_g_fmt>` ioctl logic for sliced VBI capture 92 * @vidioc_s_fmt_sliced_vbi_out: pointer to the function that implements 93 * :ref:`VIDIOC_S_FMT <vidioc_g_fmt>` ioctl logic for sliced VBI output 94 * @vidioc_s_fmt_vid_cap_mplane: pointer to the function that implements 95 * :ref:`VIDIOC_S_FMT <vidioc_g_fmt>` ioctl logic for video capture 96 * in multiple plane mode 97 * @vidioc_s_fmt_vid_out_mplane: pointer to the function that implements 98 * :ref:`VIDIOC_S_FMT <vidioc_g_fmt>` ioctl logic for video out 99 * in multiplane plane mode 100 * @vidioc_s_fmt_sdr_cap: pointer to the function that implements 101 * :ref:`VIDIOC_S_FMT <vidioc_g_fmt>` ioctl logic for Software Defined 102 * Radio capture 103 * @vidioc_s_fmt_sdr_out: pointer to the function that implements 104 * :ref:`VIDIOC_S_FMT <vidioc_g_fmt>` ioctl logic for Software Defined 105 * Radio output 106 * @vidioc_try_fmt_vid_cap: pointer to the function that implements 107 * :ref:`VIDIOC_TRY_FMT <vidioc_g_fmt>` ioctl logic for video capture 108 * in single plane mode 109 * @vidioc_try_fmt_vid_overlay: pointer to the function that implements 110 * :ref:`VIDIOC_TRY_FMT <vidioc_g_fmt>` ioctl logic for video overlay 111 * @vidioc_try_fmt_vid_out: pointer to the function that implements 112 * :ref:`VIDIOC_TRY_FMT <vidioc_g_fmt>` ioctl logic for video out 113 * in single plane mode 114 * @vidioc_try_fmt_vid_out_overlay: pointer to the function that implements 115 * :ref:`VIDIOC_TRY_FMT <vidioc_g_fmt>` ioctl logic for video overlay 116 * output 117 * @vidioc_try_fmt_vbi_cap: pointer to the function that implements 118 * :ref:`VIDIOC_TRY_FMT <vidioc_g_fmt>` ioctl logic for raw VBI capture 119 * @vidioc_try_fmt_vbi_out: pointer to the function that implements 120 * :ref:`VIDIOC_TRY_FMT <vidioc_g_fmt>` ioctl logic for raw VBI output 121 * @vidioc_try_fmt_sliced_vbi_cap: pointer to the function that implements 122 * :ref:`VIDIOC_TRY_FMT <vidioc_g_fmt>` ioctl logic for sliced VBI 123 * capture 124 * @vidioc_try_fmt_sliced_vbi_out: pointer to the function that implements 125 * :ref:`VIDIOC_TRY_FMT <vidioc_g_fmt>` ioctl logic for sliced VBI output 126 * @vidioc_try_fmt_vid_cap_mplane: pointer to the function that implements 127 * :ref:`VIDIOC_TRY_FMT <vidioc_g_fmt>` ioctl logic for video capture 128 * in multiple plane mode 129 * @vidioc_try_fmt_vid_out_mplane: pointer to the function that implements 130 * :ref:`VIDIOC_TRY_FMT <vidioc_g_fmt>` ioctl logic for video out 131 * in multiplane plane mode 132 * @vidioc_try_fmt_sdr_cap: pointer to the function that implements 133 * :ref:`VIDIOC_TRY_FMT <vidioc_g_fmt>` ioctl logic for Software Defined 134 * Radio capture 135 * @vidioc_try_fmt_sdr_out: pointer to the function that implements 136 * :ref:`VIDIOC_TRY_FMT <vidioc_g_fmt>` ioctl logic for Software Defined 137 * Radio output 138 * @vidioc_reqbufs: pointer to the function that implements 139 * :ref:`VIDIOC_REQBUFS <vidioc_reqbufs>` ioctl 140 * @vidioc_querybuf: pointer to the function that implements 141 * :ref:`VIDIOC_QUERYBUF <vidioc_querybuf>` ioctl 142 * @vidioc_qbuf: pointer to the function that implements 143 * :ref:`VIDIOC_QBUF <vidioc_qbuf>` ioctl 144 * @vidioc_expbuf: pointer to the function that implements 145 * :ref:`VIDIOC_EXPBUF <vidioc_expbuf>` ioctl 146 * @vidioc_dqbuf: pointer to the function that implements 147 * :ref:`VIDIOC_DQBUF <vidioc_qbuf>` ioctl 148 * @vidioc_create_bufs: pointer to the function that implements 149 * :ref:`VIDIOC_CREATE_BUFS <vidioc_create_bufs>` ioctl 150 * @vidioc_prepare_buf: pointer to the function that implements 151 * :ref:`VIDIOC_PREPARE_BUF <vidioc_prepare_buf>` ioctl 152 * @vidioc_overlay: pointer to the function that implements 153 * :ref:`VIDIOC_OVERLAY <vidioc_overlay>` ioctl 154 * @vidioc_g_fbuf: pointer to the function that implements 155 * :ref:`VIDIOC_G_FBUF <vidioc_g_fbuf>` ioctl 156 * @vidioc_s_fbuf: pointer to the function that implements 157 * :ref:`VIDIOC_S_FBUF <vidioc_g_fbuf>` ioctl 158 * @vidioc_streamon: pointer to the function that implements 159 * :ref:`VIDIOC_STREAMON <vidioc_streamon>` ioctl 160 * @vidioc_streamoff: pointer to the function that implements 161 * :ref:`VIDIOC_STREAMOFF <vidioc_streamon>` ioctl 162 * @vidioc_g_std: pointer to the function that implements 163 * :ref:`VIDIOC_G_STD <vidioc_g_std>` ioctl 164 * @vidioc_s_std: pointer to the function that implements 165 * :ref:`VIDIOC_S_STD <vidioc_g_std>` ioctl 166 * @vidioc_querystd: pointer to the function that implements 167 * :ref:`VIDIOC_QUERYSTD <vidioc_querystd>` ioctl 168 * @vidioc_enum_input: pointer to the function that implements 169 * :ref:`VIDIOC_ENUM_INPUT <vidioc_g_input>` ioctl 170 * @vidioc_g_input: pointer to the function that implements 171 * :ref:`VIDIOC_G_INPUT <vidioc_g_input>` ioctl 172 * @vidioc_s_input: pointer to the function that implements 173 * :ref:`VIDIOC_S_INPUT <vidioc_g_input>` ioctl 174 * @vidioc_enum_output: pointer to the function that implements 175 * :ref:`VIDIOC_ENUM_OUTPUT <vidioc_g_output>` ioctl 176 * @vidioc_g_output: pointer to the function that implements 177 * :ref:`VIDIOC_G_OUTPUT <vidioc_g_output>` ioctl 178 * @vidioc_s_output: pointer to the function that implements 179 * :ref:`VIDIOC_S_OUTPUT <vidioc_g_output>` ioctl 180 * @vidioc_queryctrl: pointer to the function that implements 181 * :ref:`VIDIOC_QUERYCTRL <vidioc_queryctrl>` ioctl 182 * @vidioc_query_ext_ctrl: pointer to the function that implements 183 * :ref:`VIDIOC_QUERY_EXT_CTRL <vidioc_queryctrl>` ioctl 184 * @vidioc_g_ctrl: pointer to the function that implements 185 * :ref:`VIDIOC_G_CTRL <vidioc_g_ctrl>` ioctl 186 * @vidioc_s_ctrl: pointer to the function that implements 187 * :ref:`VIDIOC_S_CTRL <vidioc_g_ctrl>` ioctl 188 * @vidioc_g_ext_ctrls: pointer to the function that implements 189 * :ref:`VIDIOC_G_EXT_CTRLS <vidioc_g_ext_ctrls>` ioctl 190 * @vidioc_s_ext_ctrls: pointer to the function that implements 191 * :ref:`VIDIOC_S_EXT_CTRLS <vidioc_g_ext_ctrls>` ioctl 192 * @vidioc_try_ext_ctrls: pointer to the function that implements 193 * :ref:`VIDIOC_TRY_EXT_CTRLS <vidioc_g_ext_ctrls>` ioctl 194 * @vidioc_querymenu: pointer to the function that implements 195 * :ref:`VIDIOC_QUERYMENU <vidioc_queryctrl>` ioctl 196 * @vidioc_enumaudio: pointer to the function that implements 197 * :ref:`VIDIOC_ENUMAUDIO <vidioc_enumaudio>` ioctl 198 * @vidioc_g_audio: pointer to the function that implements 199 * :ref:`VIDIOC_G_AUDIO <vidioc_g_audio>` ioctl 200 * @vidioc_s_audio: pointer to the function that implements 201 * :ref:`VIDIOC_S_AUDIO <vidioc_g_audio>` ioctl 202 * @vidioc_enumaudout: pointer to the function that implements 203 * :ref:`VIDIOC_ENUMAUDOUT <vidioc_enumaudout>` ioctl 204 * @vidioc_g_audout: pointer to the function that implements 205 * :ref:`VIDIOC_G_AUDOUT <vidioc_g_audout>` ioctl 206 * @vidioc_s_audout: pointer to the function that implements 207 * :ref:`VIDIOC_S_AUDOUT <vidioc_g_audout>` ioctl 208 * @vidioc_g_modulator: pointer to the function that implements 209 * :ref:`VIDIOC_G_MODULATOR <vidioc_g_modulator>` ioctl 210 * @vidioc_s_modulator: pointer to the function that implements 211 * :ref:`VIDIOC_S_MODULATOR <vidioc_g_modulator>` ioctl 212 * @vidioc_cropcap: pointer to the function that implements 213 * :ref:`VIDIOC_CROPCAP <vidioc_cropcap>` ioctl 214 * @vidioc_g_crop: pointer to the function that implements 215 * :ref:`VIDIOC_G_CROP <vidioc_g_crop>` ioctl 216 * @vidioc_s_crop: pointer to the function that implements 217 * :ref:`VIDIOC_S_CROP <vidioc_g_crop>` ioctl 218 * @vidioc_g_selection: pointer to the function that implements 219 * :ref:`VIDIOC_G_SELECTION <vidioc_g_selection>` ioctl 220 * @vidioc_s_selection: pointer to the function that implements 221 * :ref:`VIDIOC_S_SELECTION <vidioc_g_selection>` ioctl 222 * @vidioc_g_jpegcomp: pointer to the function that implements 223 * :ref:`VIDIOC_G_JPEGCOMP <vidioc_g_jpegcomp>` ioctl 224 * @vidioc_s_jpegcomp: pointer to the function that implements 225 * :ref:`VIDIOC_S_JPEGCOMP <vidioc_g_jpegcomp>` ioctl 226 * @vidioc_g_enc_index: pointer to the function that implements 227 * :ref:`VIDIOC_G_ENC_INDEX <vidioc_g_enc_index>` ioctl 228 * @vidioc_encoder_cmd: pointer to the function that implements 229 * :ref:`VIDIOC_ENCODER_CMD <vidioc_encoder_cmd>` ioctl 230 * @vidioc_try_encoder_cmd: pointer to the function that implements 231 * :ref:`VIDIOC_TRY_ENCODER_CMD <vidioc_encoder_cmd>` ioctl 232 * @vidioc_decoder_cmd: pointer to the function that implements 233 * :ref:`VIDIOC_DECODER_CMD <vidioc_decoder_cmd>` ioctl 234 * @vidioc_try_decoder_cmd: pointer to the function that implements 235 * :ref:`VIDIOC_TRY_DECODER_CMD <vidioc_decoder_cmd>` ioctl 236 * @vidioc_g_parm: pointer to the function that implements 237 * :ref:`VIDIOC_G_PARM <vidioc_g_parm>` ioctl 238 * @vidioc_s_parm: pointer to the function that implements 239 * :ref:`VIDIOC_S_PARM <vidioc_g_parm>` ioctl 240 * @vidioc_g_tuner: pointer to the function that implements 241 * :ref:`VIDIOC_G_TUNER <vidioc_g_tuner>` ioctl 242 * @vidioc_s_tuner: pointer to the function that implements 243 * :ref:`VIDIOC_S_TUNER <vidioc_g_tuner>` ioctl 244 * @vidioc_g_frequency: pointer to the function that implements 245 * :ref:`VIDIOC_G_FREQUENCY <vidioc_g_frequency>` ioctl 246 * @vidioc_s_frequency: pointer to the function that implements 247 * :ref:`VIDIOC_S_FREQUENCY <vidioc_g_frequency>` ioctl 248 * @vidioc_enum_freq_bands: pointer to the function that implements 249 * :ref:`VIDIOC_ENUM_FREQ_BANDS <vidioc_enum_freq_bands>` ioctl 250 * @vidioc_g_sliced_vbi_cap: pointer to the function that implements 251 * :ref:`VIDIOC_G_SLICED_VBI_CAP <vidioc_g_sliced_vbi_cap>` ioctl 252 * @vidioc_log_status: pointer to the function that implements 253 * :ref:`VIDIOC_LOG_STATUS <vidioc_log_status>` ioctl 254 * @vidioc_s_hw_freq_seek: pointer to the function that implements 255 * :ref:`VIDIOC_S_HW_FREQ_SEEK <vidioc_s_hw_freq_seek>` ioctl 256 * @vidioc_g_register: pointer to the function that implements 257 * :ref:`VIDIOC_DBG_G_REGISTER <vidioc_dbg_g_register>` ioctl 258 * @vidioc_s_register: pointer to the function that implements 259 * :ref:`VIDIOC_DBG_S_REGISTER <vidioc_dbg_g_register>` ioctl 260 * @vidioc_g_chip_info: pointer to the function that implements 261 * :ref:`VIDIOC_DBG_G_CHIP_INFO <vidioc_dbg_g_chip_info>` ioctl 262 * @vidioc_enum_framesizes: pointer to the function that implements 263 * :ref:`VIDIOC_ENUM_FRAMESIZES <vidioc_enum_framesizes>` ioctl 264 * @vidioc_enum_frameintervals: pointer to the function that implements 265 * :ref:`VIDIOC_ENUM_FRAMEINTERVALS <vidioc_enum_frameintervals>` ioctl 266 * @vidioc_s_dv_timings: pointer to the function that implements 267 * :ref:`VIDIOC_S_DV_TIMINGS <vidioc_g_dv_timings>` ioctl 268 * @vidioc_g_dv_timings: pointer to the function that implements 269 * :ref:`VIDIOC_G_DV_TIMINGS <vidioc_g_dv_timings>` ioctl 270 * @vidioc_query_dv_timings: pointer to the function that implements 271 * :ref:`VIDIOC_QUERY_DV_TIMINGS <vidioc_query_dv_timings>` ioctl 272 * @vidioc_enum_dv_timings: pointer to the function that implements 273 * :ref:`VIDIOC_ENUM_DV_TIMINGS <vidioc_enum_dv_timings>` ioctl 274 * @vidioc_dv_timings_cap: pointer to the function that implements 275 * :ref:`VIDIOC_DV_TIMINGS_CAP <vidioc_dv_timings_cap>` ioctl 276 * @vidioc_g_edid: pointer to the function that implements 277 * :ref:`VIDIOC_G_EDID <vidioc_g_edid>` ioctl 278 * @vidioc_s_edid: pointer to the function that implements 279 * :ref:`VIDIOC_S_EDID <vidioc_g_edid>` ioctl 280 * @vidioc_subscribe_event: pointer to the function that implements 281 * :ref:`VIDIOC_SUBSCRIBE_EVENT <vidioc_subscribe_event>` ioctl 282 * @vidioc_unsubscribe_event: pointer to the function that implements 283 * :ref:`VIDIOC_UNSUBSCRIBE_EVENT <vidioc_unsubscribe_event>` ioctl 284 * @vidioc_default: pointed used to allow other ioctls 285 */ 286struct v4l2_ioctl_ops { 287 /* ioctl callbacks */ 288 289 /* VIDIOC_QUERYCAP handler */ 290 int (*vidioc_querycap)(struct file *file, void *fh, 291 struct v4l2_capability *cap); 292 293 /* VIDIOC_ENUM_FMT handlers */ 294 int (*vidioc_enum_fmt_vid_cap)(struct file *file, void *fh, 295 struct v4l2_fmtdesc *f); 296 int (*vidioc_enum_fmt_vid_overlay)(struct file *file, void *fh, 297 struct v4l2_fmtdesc *f); 298 int (*vidioc_enum_fmt_vid_out)(struct file *file, void *fh, 299 struct v4l2_fmtdesc *f); 300 int (*vidioc_enum_fmt_vid_cap_mplane)(struct file *file, void *fh, 301 struct v4l2_fmtdesc *f); 302 int (*vidioc_enum_fmt_vid_out_mplane)(struct file *file, void *fh, 303 struct v4l2_fmtdesc *f); 304 int (*vidioc_enum_fmt_sdr_cap)(struct file *file, void *fh, 305 struct v4l2_fmtdesc *f); 306 int (*vidioc_enum_fmt_sdr_out)(struct file *file, void *fh, 307 struct v4l2_fmtdesc *f); 308 309 /* VIDIOC_G_FMT handlers */ 310 int (*vidioc_g_fmt_vid_cap)(struct file *file, void *fh, 311 struct v4l2_format *f); 312 int (*vidioc_g_fmt_vid_overlay)(struct file *file, void *fh, 313 struct v4l2_format *f); 314 int (*vidioc_g_fmt_vid_out)(struct file *file, void *fh, 315 struct v4l2_format *f); 316 int (*vidioc_g_fmt_vid_out_overlay)(struct file *file, void *fh, 317 struct v4l2_format *f); 318 int (*vidioc_g_fmt_vbi_cap)(struct file *file, void *fh, 319 struct v4l2_format *f); 320 int (*vidioc_g_fmt_vbi_out)(struct file *file, void *fh, 321 struct v4l2_format *f); 322 int (*vidioc_g_fmt_sliced_vbi_cap)(struct file *file, void *fh, 323 struct v4l2_format *f); 324 int (*vidioc_g_fmt_sliced_vbi_out)(struct file *file, void *fh, 325 struct v4l2_format *f); 326 int (*vidioc_g_fmt_vid_cap_mplane)(struct file *file, void *fh, 327 struct v4l2_format *f); 328 int (*vidioc_g_fmt_vid_out_mplane)(struct file *file, void *fh, 329 struct v4l2_format *f); 330 int (*vidioc_g_fmt_sdr_cap)(struct file *file, void *fh, 331 struct v4l2_format *f); 332 int (*vidioc_g_fmt_sdr_out)(struct file *file, void *fh, 333 struct v4l2_format *f); 334 335 /* VIDIOC_S_FMT handlers */ 336 int (*vidioc_s_fmt_vid_cap)(struct file *file, void *fh, 337 struct v4l2_format *f); 338 int (*vidioc_s_fmt_vid_overlay)(struct file *file, void *fh, 339 struct v4l2_format *f); 340 int (*vidioc_s_fmt_vid_out)(struct file *file, void *fh, 341 struct v4l2_format *f); 342 int (*vidioc_s_fmt_vid_out_overlay)(struct file *file, void *fh, 343 struct v4l2_format *f); 344 int (*vidioc_s_fmt_vbi_cap)(struct file *file, void *fh, 345 struct v4l2_format *f); 346 int (*vidioc_s_fmt_vbi_out)(struct file *file, void *fh, 347 struct v4l2_format *f); 348 int (*vidioc_s_fmt_sliced_vbi_cap)(struct file *file, void *fh, 349 struct v4l2_format *f); 350 int (*vidioc_s_fmt_sliced_vbi_out)(struct file *file, void *fh, 351 struct v4l2_format *f); 352 int (*vidioc_s_fmt_vid_cap_mplane)(struct file *file, void *fh, 353 struct v4l2_format *f); 354 int (*vidioc_s_fmt_vid_out_mplane)(struct file *file, void *fh, 355 struct v4l2_format *f); 356 int (*vidioc_s_fmt_sdr_cap)(struct file *file, void *fh, 357 struct v4l2_format *f); 358 int (*vidioc_s_fmt_sdr_out)(struct file *file, void *fh, 359 struct v4l2_format *f); 360 361 /* VIDIOC_TRY_FMT handlers */ 362 int (*vidioc_try_fmt_vid_cap)(struct file *file, void *fh, 363 struct v4l2_format *f); 364 int (*vidioc_try_fmt_vid_overlay)(struct file *file, void *fh, 365 struct v4l2_format *f); 366 int (*vidioc_try_fmt_vid_out)(struct file *file, void *fh, 367 struct v4l2_format *f); 368 int (*vidioc_try_fmt_vid_out_overlay)(struct file *file, void *fh, 369 struct v4l2_format *f); 370 int (*vidioc_try_fmt_vbi_cap)(struct file *file, void *fh, 371 struct v4l2_format *f); 372 int (*vidioc_try_fmt_vbi_out)(struct file *file, void *fh, 373 struct v4l2_format *f); 374 int (*vidioc_try_fmt_sliced_vbi_cap)(struct file *file, void *fh, 375 struct v4l2_format *f); 376 int (*vidioc_try_fmt_sliced_vbi_out)(struct file *file, void *fh, 377 struct v4l2_format *f); 378 int (*vidioc_try_fmt_vid_cap_mplane)(struct file *file, void *fh, 379 struct v4l2_format *f); 380 int (*vidioc_try_fmt_vid_out_mplane)(struct file *file, void *fh, 381 struct v4l2_format *f); 382 int (*vidioc_try_fmt_sdr_cap)(struct file *file, void *fh, 383 struct v4l2_format *f); 384 int (*vidioc_try_fmt_sdr_out)(struct file *file, void *fh, 385 struct v4l2_format *f); 386 387 /* Buffer handlers */ 388 int (*vidioc_reqbufs)(struct file *file, void *fh, 389 struct v4l2_requestbuffers *b); 390 int (*vidioc_querybuf)(struct file *file, void *fh, 391 struct v4l2_buffer *b); 392 int (*vidioc_qbuf)(struct file *file, void *fh, 393 struct v4l2_buffer *b); 394 int (*vidioc_expbuf)(struct file *file, void *fh, 395 struct v4l2_exportbuffer *e); 396 int (*vidioc_dqbuf)(struct file *file, void *fh, 397 struct v4l2_buffer *b); 398 399 int (*vidioc_create_bufs)(struct file *file, void *fh, 400 struct v4l2_create_buffers *b); 401 int (*vidioc_prepare_buf)(struct file *file, void *fh, 402 struct v4l2_buffer *b); 403 404 int (*vidioc_overlay)(struct file *file, void *fh, unsigned int i); 405 int (*vidioc_g_fbuf)(struct file *file, void *fh, 406 struct v4l2_framebuffer *a); 407 int (*vidioc_s_fbuf)(struct file *file, void *fh, 408 const struct v4l2_framebuffer *a); 409 410 /* Stream on/off */ 411 int (*vidioc_streamon)(struct file *file, void *fh, 412 enum v4l2_buf_type i); 413 int (*vidioc_streamoff)(struct file *file, void *fh, 414 enum v4l2_buf_type i); 415 416 /* 417 * Standard handling 418 * 419 * Note: ENUMSTD is handled by videodev.c 420 */ 421 int (*vidioc_g_std)(struct file *file, void *fh, v4l2_std_id *norm); 422 int (*vidioc_s_std)(struct file *file, void *fh, v4l2_std_id norm); 423 int (*vidioc_querystd)(struct file *file, void *fh, v4l2_std_id *a); 424 425 /* Input handling */ 426 int (*vidioc_enum_input)(struct file *file, void *fh, 427 struct v4l2_input *inp); 428 int (*vidioc_g_input)(struct file *file, void *fh, unsigned int *i); 429 int (*vidioc_s_input)(struct file *file, void *fh, unsigned int i); 430 431 /* Output handling */ 432 int (*vidioc_enum_output)(struct file *file, void *fh, 433 struct v4l2_output *a); 434 int (*vidioc_g_output)(struct file *file, void *fh, unsigned int *i); 435 int (*vidioc_s_output)(struct file *file, void *fh, unsigned int i); 436 437 /* Control handling */ 438 int (*vidioc_queryctrl)(struct file *file, void *fh, 439 struct v4l2_queryctrl *a); 440 int (*vidioc_query_ext_ctrl)(struct file *file, void *fh, 441 struct v4l2_query_ext_ctrl *a); 442 int (*vidioc_g_ctrl)(struct file *file, void *fh, 443 struct v4l2_control *a); 444 int (*vidioc_s_ctrl)(struct file *file, void *fh, 445 struct v4l2_control *a); 446 int (*vidioc_g_ext_ctrls)(struct file *file, void *fh, 447 struct v4l2_ext_controls *a); 448 int (*vidioc_s_ext_ctrls)(struct file *file, void *fh, 449 struct v4l2_ext_controls *a); 450 int (*vidioc_try_ext_ctrls)(struct file *file, void *fh, 451 struct v4l2_ext_controls *a); 452 int (*vidioc_querymenu)(struct file *file, void *fh, 453 struct v4l2_querymenu *a); 454 455 /* Audio ioctls */ 456 int (*vidioc_enumaudio)(struct file *file, void *fh, 457 struct v4l2_audio *a); 458 int (*vidioc_g_audio)(struct file *file, void *fh, 459 struct v4l2_audio *a); 460 int (*vidioc_s_audio)(struct file *file, void *fh, 461 const struct v4l2_audio *a); 462 463 /* Audio out ioctls */ 464 int (*vidioc_enumaudout)(struct file *file, void *fh, 465 struct v4l2_audioout *a); 466 int (*vidioc_g_audout)(struct file *file, void *fh, 467 struct v4l2_audioout *a); 468 int (*vidioc_s_audout)(struct file *file, void *fh, 469 const struct v4l2_audioout *a); 470 int (*vidioc_g_modulator)(struct file *file, void *fh, 471 struct v4l2_modulator *a); 472 int (*vidioc_s_modulator)(struct file *file, void *fh, 473 const struct v4l2_modulator *a); 474 /* Crop ioctls */ 475 int (*vidioc_cropcap)(struct file *file, void *fh, 476 struct v4l2_cropcap *a); 477 int (*vidioc_g_crop)(struct file *file, void *fh, 478 struct v4l2_crop *a); 479 int (*vidioc_s_crop)(struct file *file, void *fh, 480 const struct v4l2_crop *a); 481 int (*vidioc_g_selection)(struct file *file, void *fh, 482 struct v4l2_selection *s); 483 int (*vidioc_s_selection)(struct file *file, void *fh, 484 struct v4l2_selection *s); 485 /* Compression ioctls */ 486 int (*vidioc_g_jpegcomp)(struct file *file, void *fh, 487 struct v4l2_jpegcompression *a); 488 int (*vidioc_s_jpegcomp)(struct file *file, void *fh, 489 const struct v4l2_jpegcompression *a); 490 int (*vidioc_g_enc_index)(struct file *file, void *fh, 491 struct v4l2_enc_idx *a); 492 int (*vidioc_encoder_cmd)(struct file *file, void *fh, 493 struct v4l2_encoder_cmd *a); 494 int (*vidioc_try_encoder_cmd)(struct file *file, void *fh, 495 struct v4l2_encoder_cmd *a); 496 int (*vidioc_decoder_cmd)(struct file *file, void *fh, 497 struct v4l2_decoder_cmd *a); 498 int (*vidioc_try_decoder_cmd)(struct file *file, void *fh, 499 struct v4l2_decoder_cmd *a); 500 501 /* Stream type-dependent parameter ioctls */ 502 int (*vidioc_g_parm)(struct file *file, void *fh, 503 struct v4l2_streamparm *a); 504 int (*vidioc_s_parm)(struct file *file, void *fh, 505 struct v4l2_streamparm *a); 506 507 /* Tuner ioctls */ 508 int (*vidioc_g_tuner)(struct file *file, void *fh, 509 struct v4l2_tuner *a); 510 int (*vidioc_s_tuner)(struct file *file, void *fh, 511 const struct v4l2_tuner *a); 512 int (*vidioc_g_frequency)(struct file *file, void *fh, 513 struct v4l2_frequency *a); 514 int (*vidioc_s_frequency)(struct file *file, void *fh, 515 const struct v4l2_frequency *a); 516 int (*vidioc_enum_freq_bands)(struct file *file, void *fh, 517 struct v4l2_frequency_band *band); 518 519 /* Sliced VBI cap */ 520 int (*vidioc_g_sliced_vbi_cap)(struct file *file, void *fh, 521 struct v4l2_sliced_vbi_cap *a); 522 523 /* Log status ioctl */ 524 int (*vidioc_log_status)(struct file *file, void *fh); 525 526 int (*vidioc_s_hw_freq_seek)(struct file *file, void *fh, 527 const struct v4l2_hw_freq_seek *a); 528 529 /* Debugging ioctls */ 530#ifdef CONFIG_VIDEO_ADV_DEBUG 531 int (*vidioc_g_register)(struct file *file, void *fh, 532 struct v4l2_dbg_register *reg); 533 int (*vidioc_s_register)(struct file *file, void *fh, 534 const struct v4l2_dbg_register *reg); 535 536 int (*vidioc_g_chip_info)(struct file *file, void *fh, 537 struct v4l2_dbg_chip_info *chip); 538#endif 539 540 int (*vidioc_enum_framesizes)(struct file *file, void *fh, 541 struct v4l2_frmsizeenum *fsize); 542 543 int (*vidioc_enum_frameintervals)(struct file *file, void *fh, 544 struct v4l2_frmivalenum *fival); 545 546 /* DV Timings IOCTLs */ 547 int (*vidioc_s_dv_timings)(struct file *file, void *fh, 548 struct v4l2_dv_timings *timings); 549 int (*vidioc_g_dv_timings)(struct file *file, void *fh, 550 struct v4l2_dv_timings *timings); 551 int (*vidioc_query_dv_timings)(struct file *file, void *fh, 552 struct v4l2_dv_timings *timings); 553 int (*vidioc_enum_dv_timings)(struct file *file, void *fh, 554 struct v4l2_enum_dv_timings *timings); 555 int (*vidioc_dv_timings_cap)(struct file *file, void *fh, 556 struct v4l2_dv_timings_cap *cap); 557 int (*vidioc_g_edid)(struct file *file, void *fh, 558 struct v4l2_edid *edid); 559 int (*vidioc_s_edid)(struct file *file, void *fh, 560 struct v4l2_edid *edid); 561 562 int (*vidioc_subscribe_event)(struct v4l2_fh *fh, 563 const struct v4l2_event_subscription *sub); 564 int (*vidioc_unsubscribe_event)(struct v4l2_fh *fh, 565 const struct v4l2_event_subscription *sub); 566 567 /* For other private ioctls */ 568 long (*vidioc_default)(struct file *file, void *fh, 569 bool valid_prio, unsigned int cmd, void *arg); 570}; 571 572 573/* v4l debugging and diagnostics */ 574 575/* Device debug flags to be used with the video device debug attribute */ 576 577/* Just log the ioctl name + error code */ 578#define V4L2_DEV_DEBUG_IOCTL 0x01 579/* Log the ioctl name arguments + error code */ 580#define V4L2_DEV_DEBUG_IOCTL_ARG 0x02 581/* Log the file operations open, release, mmap and get_unmapped_area */ 582#define V4L2_DEV_DEBUG_FOP 0x04 583/* Log the read and write file operations and the VIDIOC_(D)QBUF ioctls */ 584#define V4L2_DEV_DEBUG_STREAMING 0x08 585/* Log poll() */ 586#define V4L2_DEV_DEBUG_POLL 0x10 587 588/* Video standard functions */ 589 590/** 591 * v4l2_norm_to_name - Ancillary routine to analog TV standard name from its ID. 592 * 593 * @id: analog TV standard ID. 594 * 595 * Return: returns a string with the name of the analog TV standard. 596 * If the standard is not found or if @id points to multiple standard, 597 * it returns "Unknown". 598 */ 599const char *v4l2_norm_to_name(v4l2_std_id id); 600 601/** 602 * v4l2_video_std_frame_period - Ancillary routine that fills a 603 * struct &v4l2_fract pointer with the default framerate fraction. 604 * 605 * @id: analog TV sdandard ID. 606 * @frameperiod: struct &v4l2_fract pointer to be filled 607 * 608 */ 609void v4l2_video_std_frame_period(int id, struct v4l2_fract *frameperiod); 610 611/** 612 * v4l2_video_std_construct - Ancillary routine that fills in the fields of 613 * a &v4l2_standard structure according to the @id parameter. 614 * 615 * @vs: struct &v4l2_standard pointer to be filled 616 * @id: analog TV sdandard ID. 617 * @name: name of the standard to be used 618 * 619 * .. note:: 620 * 621 * This ancillary routine is obsolete. Shouldn't be used on newer drivers. 622 */ 623int v4l2_video_std_construct(struct v4l2_standard *vs, 624 int id, const char *name); 625 626/** 627 * v4l_printk_ioctl - Ancillary routine that prints the ioctl in a 628 * human-readable format. 629 * 630 * @prefix: prefix to be added at the ioctl prints. 631 * @cmd: ioctl name 632 * 633 * .. note:: 634 * 635 * If prefix != %NULL, then it will issue a 636 * ``printk(KERN_DEBUG "%s: ", prefix)`` first. 637 */ 638void v4l_printk_ioctl(const char *prefix, unsigned int cmd); 639 640struct video_device; 641 642 643/** 644 * v4l2_ioctl_get_lock - get the mutex (if any) that it is need to lock for 645 * a given command. 646 * 647 * @vdev: Pointer to struct &video_device. 648 * @cmd: Ioctl name. 649 * 650 * .. note:: Internal use only. Should not be used outside V4L2 core. 651 */ 652struct mutex *v4l2_ioctl_get_lock(struct video_device *vdev, unsigned int cmd); 653 654/* names for fancy debug output */ 655extern const char *v4l2_field_names[]; 656extern const char *v4l2_type_names[]; 657 658#ifdef CONFIG_COMPAT 659/** 660 * v4l2_compat_ioctl32 -32 Bits compatibility layer for 64 bits processors 661 * 662 * @file: Pointer to struct &file. 663 * @cmd: Ioctl name. 664 * @arg: Ioctl argument. 665 */ 666long int v4l2_compat_ioctl32(struct file *file, unsigned int cmd, 667 unsigned long arg); 668#endif 669 670/** 671 * typedef v4l2_kioctl - Typedef used to pass an ioctl handler. 672 * 673 * @file: Pointer to struct &file. 674 * @cmd: Ioctl name. 675 * @arg: Ioctl argument. 676 */ 677typedef long (*v4l2_kioctl)(struct file *file, unsigned int cmd, void *arg); 678 679/** 680 * video_usercopy - copies data from/to userspace memory when an ioctl is 681 * issued. 682 * 683 * @file: Pointer to struct &file. 684 * @cmd: Ioctl name. 685 * @arg: Ioctl argument. 686 * @func: function that will handle the ioctl 687 * 688 * .. note:: 689 * 690 * This routine should be used only inside the V4L2 core. 691 */ 692long int video_usercopy(struct file *file, unsigned int cmd, 693 unsigned long int arg, v4l2_kioctl func); 694 695/** 696 * video_ioctl2 - Handles a V4L2 ioctl. 697 * 698 * @file: Pointer to struct &file. 699 * @cmd: Ioctl name. 700 * @arg: Ioctl argument. 701 * 702 * Method used to hancle an ioctl. Should be used to fill the 703 * &v4l2_ioctl_ops.unlocked_ioctl on all V4L2 drivers. 704 */ 705long int video_ioctl2(struct file *file, 706 unsigned int cmd, unsigned long int arg); 707 708#endif /* _V4L2_IOCTL_H */ 709