Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1 | /* |
| 2 | * Video capture interface for Linux version 2 |
| 3 | * |
| 4 | * A generic framework to process V4L2 ioctl commands. |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or |
| 7 | * modify it under the terms of the GNU General Public License |
| 8 | * as published by the Free Software Foundation; either version |
| 9 | * 2 of the License, or (at your option) any later version. |
| 10 | * |
Alan Cox | d9b0144 | 2008-10-27 15:13:47 -0300 | [diff] [blame] | 11 | * Authors: Alan Cox, <alan@lxorguk.ukuu.org.uk> (version 1) |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 12 | * Mauro Carvalho Chehab <mchehab@infradead.org> (version 2) |
| 13 | */ |
| 14 | |
| 15 | #include <linux/module.h> |
Tejun Heo | 5a0e3ad | 2010-03-24 17:04:11 +0900 | [diff] [blame] | 16 | #include <linux/slab.h> |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 17 | #include <linux/types.h> |
| 18 | #include <linux/kernel.h> |
Mauro Carvalho Chehab | ae6db51 | 2011-06-24 13:14:14 -0300 | [diff] [blame] | 19 | #include <linux/version.h> |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 20 | |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 21 | #include <linux/videodev2.h> |
| 22 | |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 23 | #include <media/v4l2-common.h> |
| 24 | #include <media/v4l2-ioctl.h> |
Hans Verkuil | 11bbc1c | 2010-05-16 09:24:06 -0300 | [diff] [blame] | 25 | #include <media/v4l2-ctrls.h> |
Sakari Ailus | d3d7c96 | 2010-03-27 11:02:10 -0300 | [diff] [blame] | 26 | #include <media/v4l2-fh.h> |
| 27 | #include <media/v4l2-event.h> |
Hans Verkuil | 99cd47bc | 2011-03-11 19:00:56 -0300 | [diff] [blame] | 28 | #include <media/v4l2-device.h> |
Hans Verkuil | 80b36e0 | 2009-02-07 11:00:02 -0300 | [diff] [blame] | 29 | #include <media/v4l2-chip-ident.h> |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 30 | |
| 31 | #define dbgarg(cmd, fmt, arg...) \ |
| 32 | do { \ |
| 33 | if (vfd->debug & V4L2_DEBUG_IOCTL_ARG) { \ |
| 34 | printk(KERN_DEBUG "%s: ", vfd->name); \ |
| 35 | v4l_printk_ioctl(cmd); \ |
| 36 | printk(" " fmt, ## arg); \ |
| 37 | } \ |
| 38 | } while (0) |
| 39 | |
| 40 | #define dbgarg2(fmt, arg...) \ |
| 41 | do { \ |
| 42 | if (vfd->debug & V4L2_DEBUG_IOCTL_ARG) \ |
| 43 | printk(KERN_DEBUG "%s: " fmt, vfd->name, ## arg);\ |
| 44 | } while (0) |
| 45 | |
Mauro Carvalho Chehab | d33fbcb | 2009-07-02 17:07:32 -0300 | [diff] [blame] | 46 | #define dbgarg3(fmt, arg...) \ |
| 47 | do { \ |
| 48 | if (vfd->debug & V4L2_DEBUG_IOCTL_ARG) \ |
| 49 | printk(KERN_CONT "%s: " fmt, vfd->name, ## arg);\ |
| 50 | } while (0) |
| 51 | |
Lucas De Marchi | 25985ed | 2011-03-30 22:57:33 -0300 | [diff] [blame] | 52 | /* Zero out the end of the struct pointed to by p. Everything after, but |
Trent Piepho | 7ecc0cf | 2009-04-30 21:03:34 -0300 | [diff] [blame] | 53 | * not including, the specified field is cleared. */ |
| 54 | #define CLEAR_AFTER_FIELD(p, field) \ |
| 55 | memset((u8 *)(p) + offsetof(typeof(*(p)), field) + sizeof((p)->field), \ |
| 56 | 0, sizeof(*(p)) - offsetof(typeof(*(p)), field) - sizeof((p)->field)) |
| 57 | |
Hans Verkuil | 93d5a30 | 2011-08-09 09:32:06 -0300 | [diff] [blame] | 58 | #define have_fmt_ops(foo) ( \ |
Mauro Carvalho Chehab | a5f2db5 | 2011-07-31 09:37:56 -0300 | [diff] [blame] | 59 | ops->vidioc_##foo##_fmt_vid_cap || \ |
| 60 | ops->vidioc_##foo##_fmt_vid_out || \ |
| 61 | ops->vidioc_##foo##_fmt_vid_cap_mplane || \ |
| 62 | ops->vidioc_##foo##_fmt_vid_out_mplane || \ |
| 63 | ops->vidioc_##foo##_fmt_vid_overlay || \ |
Hans Verkuil | 93d5a30 | 2011-08-09 09:32:06 -0300 | [diff] [blame] | 64 | ops->vidioc_##foo##_fmt_vbi_cap || \ |
| 65 | ops->vidioc_##foo##_fmt_vid_out_overlay || \ |
| 66 | ops->vidioc_##foo##_fmt_vbi_out || \ |
| 67 | ops->vidioc_##foo##_fmt_sliced_vbi_cap || \ |
| 68 | ops->vidioc_##foo##_fmt_sliced_vbi_out || \ |
| 69 | ops->vidioc_##foo##_fmt_type_private) |
Mauro Carvalho Chehab | a5f2db5 | 2011-07-31 09:37:56 -0300 | [diff] [blame] | 70 | |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 71 | struct std_descr { |
| 72 | v4l2_std_id std; |
| 73 | const char *descr; |
| 74 | }; |
| 75 | |
| 76 | static const struct std_descr standards[] = { |
| 77 | { V4L2_STD_NTSC, "NTSC" }, |
| 78 | { V4L2_STD_NTSC_M, "NTSC-M" }, |
| 79 | { V4L2_STD_NTSC_M_JP, "NTSC-M-JP" }, |
| 80 | { V4L2_STD_NTSC_M_KR, "NTSC-M-KR" }, |
| 81 | { V4L2_STD_NTSC_443, "NTSC-443" }, |
| 82 | { V4L2_STD_PAL, "PAL" }, |
| 83 | { V4L2_STD_PAL_BG, "PAL-BG" }, |
| 84 | { V4L2_STD_PAL_B, "PAL-B" }, |
| 85 | { V4L2_STD_PAL_B1, "PAL-B1" }, |
| 86 | { V4L2_STD_PAL_G, "PAL-G" }, |
| 87 | { V4L2_STD_PAL_H, "PAL-H" }, |
| 88 | { V4L2_STD_PAL_I, "PAL-I" }, |
| 89 | { V4L2_STD_PAL_DK, "PAL-DK" }, |
| 90 | { V4L2_STD_PAL_D, "PAL-D" }, |
| 91 | { V4L2_STD_PAL_D1, "PAL-D1" }, |
| 92 | { V4L2_STD_PAL_K, "PAL-K" }, |
| 93 | { V4L2_STD_PAL_M, "PAL-M" }, |
| 94 | { V4L2_STD_PAL_N, "PAL-N" }, |
| 95 | { V4L2_STD_PAL_Nc, "PAL-Nc" }, |
| 96 | { V4L2_STD_PAL_60, "PAL-60" }, |
| 97 | { V4L2_STD_SECAM, "SECAM" }, |
| 98 | { V4L2_STD_SECAM_B, "SECAM-B" }, |
| 99 | { V4L2_STD_SECAM_G, "SECAM-G" }, |
| 100 | { V4L2_STD_SECAM_H, "SECAM-H" }, |
| 101 | { V4L2_STD_SECAM_DK, "SECAM-DK" }, |
| 102 | { V4L2_STD_SECAM_D, "SECAM-D" }, |
| 103 | { V4L2_STD_SECAM_K, "SECAM-K" }, |
| 104 | { V4L2_STD_SECAM_K1, "SECAM-K1" }, |
| 105 | { V4L2_STD_SECAM_L, "SECAM-L" }, |
| 106 | { V4L2_STD_SECAM_LC, "SECAM-Lc" }, |
| 107 | { 0, "Unknown" } |
| 108 | }; |
| 109 | |
| 110 | /* video4linux standard ID conversion to standard name |
| 111 | */ |
| 112 | const char *v4l2_norm_to_name(v4l2_std_id id) |
| 113 | { |
| 114 | u32 myid = id; |
| 115 | int i; |
| 116 | |
| 117 | /* HACK: ppc32 architecture doesn't have __ucmpdi2 function to handle |
| 118 | 64 bit comparations. So, on that architecture, with some gcc |
| 119 | variants, compilation fails. Currently, the max value is 30bit wide. |
| 120 | */ |
| 121 | BUG_ON(myid != id); |
| 122 | |
| 123 | for (i = 0; standards[i].std; i++) |
| 124 | if (myid == standards[i].std) |
| 125 | break; |
| 126 | return standards[i].descr; |
| 127 | } |
| 128 | EXPORT_SYMBOL(v4l2_norm_to_name); |
| 129 | |
Trent Piepho | 51f0b8d5 | 2009-03-04 01:21:02 -0300 | [diff] [blame] | 130 | /* Returns frame period for the given standard */ |
| 131 | void v4l2_video_std_frame_period(int id, struct v4l2_fract *frameperiod) |
| 132 | { |
| 133 | if (id & V4L2_STD_525_60) { |
| 134 | frameperiod->numerator = 1001; |
| 135 | frameperiod->denominator = 30000; |
| 136 | } else { |
| 137 | frameperiod->numerator = 1; |
| 138 | frameperiod->denominator = 25; |
| 139 | } |
| 140 | } |
| 141 | EXPORT_SYMBOL(v4l2_video_std_frame_period); |
| 142 | |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 143 | /* Fill in the fields of a v4l2_standard structure according to the |
| 144 | 'id' and 'transmission' parameters. Returns negative on error. */ |
| 145 | int v4l2_video_std_construct(struct v4l2_standard *vs, |
| 146 | int id, const char *name) |
| 147 | { |
Trent Piepho | 51f0b8d5 | 2009-03-04 01:21:02 -0300 | [diff] [blame] | 148 | vs->id = id; |
| 149 | v4l2_video_std_frame_period(id, &vs->frameperiod); |
| 150 | vs->framelines = (id & V4L2_STD_525_60) ? 525 : 625; |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 151 | strlcpy(vs->name, name, sizeof(vs->name)); |
| 152 | return 0; |
| 153 | } |
| 154 | EXPORT_SYMBOL(v4l2_video_std_construct); |
| 155 | |
| 156 | /* ----------------------------------------------------------------- */ |
| 157 | /* some arrays for pretty-printing debug messages of enum types */ |
| 158 | |
| 159 | const char *v4l2_field_names[] = { |
| 160 | [V4L2_FIELD_ANY] = "any", |
| 161 | [V4L2_FIELD_NONE] = "none", |
| 162 | [V4L2_FIELD_TOP] = "top", |
| 163 | [V4L2_FIELD_BOTTOM] = "bottom", |
| 164 | [V4L2_FIELD_INTERLACED] = "interlaced", |
| 165 | [V4L2_FIELD_SEQ_TB] = "seq-tb", |
| 166 | [V4L2_FIELD_SEQ_BT] = "seq-bt", |
| 167 | [V4L2_FIELD_ALTERNATE] = "alternate", |
| 168 | [V4L2_FIELD_INTERLACED_TB] = "interlaced-tb", |
| 169 | [V4L2_FIELD_INTERLACED_BT] = "interlaced-bt", |
| 170 | }; |
| 171 | EXPORT_SYMBOL(v4l2_field_names); |
| 172 | |
| 173 | const char *v4l2_type_names[] = { |
| 174 | [V4L2_BUF_TYPE_VIDEO_CAPTURE] = "vid-cap", |
| 175 | [V4L2_BUF_TYPE_VIDEO_OVERLAY] = "vid-overlay", |
| 176 | [V4L2_BUF_TYPE_VIDEO_OUTPUT] = "vid-out", |
| 177 | [V4L2_BUF_TYPE_VBI_CAPTURE] = "vbi-cap", |
| 178 | [V4L2_BUF_TYPE_VBI_OUTPUT] = "vbi-out", |
| 179 | [V4L2_BUF_TYPE_SLICED_VBI_CAPTURE] = "sliced-vbi-cap", |
| 180 | [V4L2_BUF_TYPE_SLICED_VBI_OUTPUT] = "sliced-vbi-out", |
| 181 | [V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY] = "vid-out-overlay", |
Pawel Osciak | f8f3914 | 2010-07-29 14:44:25 -0300 | [diff] [blame] | 182 | [V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE] = "vid-cap-mplane", |
| 183 | [V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE] = "vid-out-mplane", |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 184 | }; |
| 185 | EXPORT_SYMBOL(v4l2_type_names); |
| 186 | |
| 187 | static const char *v4l2_memory_names[] = { |
| 188 | [V4L2_MEMORY_MMAP] = "mmap", |
| 189 | [V4L2_MEMORY_USERPTR] = "userptr", |
| 190 | [V4L2_MEMORY_OVERLAY] = "overlay", |
| 191 | }; |
| 192 | |
| 193 | #define prt_names(a, arr) ((((a) >= 0) && ((a) < ARRAY_SIZE(arr))) ? \ |
| 194 | arr[a] : "unknown") |
| 195 | |
| 196 | /* ------------------------------------------------------------------ */ |
| 197 | /* debug help functions */ |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 198 | static const char *v4l2_ioctls[] = { |
| 199 | [_IOC_NR(VIDIOC_QUERYCAP)] = "VIDIOC_QUERYCAP", |
| 200 | [_IOC_NR(VIDIOC_RESERVED)] = "VIDIOC_RESERVED", |
| 201 | [_IOC_NR(VIDIOC_ENUM_FMT)] = "VIDIOC_ENUM_FMT", |
| 202 | [_IOC_NR(VIDIOC_G_FMT)] = "VIDIOC_G_FMT", |
| 203 | [_IOC_NR(VIDIOC_S_FMT)] = "VIDIOC_S_FMT", |
| 204 | [_IOC_NR(VIDIOC_REQBUFS)] = "VIDIOC_REQBUFS", |
| 205 | [_IOC_NR(VIDIOC_QUERYBUF)] = "VIDIOC_QUERYBUF", |
| 206 | [_IOC_NR(VIDIOC_G_FBUF)] = "VIDIOC_G_FBUF", |
| 207 | [_IOC_NR(VIDIOC_S_FBUF)] = "VIDIOC_S_FBUF", |
| 208 | [_IOC_NR(VIDIOC_OVERLAY)] = "VIDIOC_OVERLAY", |
| 209 | [_IOC_NR(VIDIOC_QBUF)] = "VIDIOC_QBUF", |
| 210 | [_IOC_NR(VIDIOC_DQBUF)] = "VIDIOC_DQBUF", |
| 211 | [_IOC_NR(VIDIOC_STREAMON)] = "VIDIOC_STREAMON", |
| 212 | [_IOC_NR(VIDIOC_STREAMOFF)] = "VIDIOC_STREAMOFF", |
| 213 | [_IOC_NR(VIDIOC_G_PARM)] = "VIDIOC_G_PARM", |
| 214 | [_IOC_NR(VIDIOC_S_PARM)] = "VIDIOC_S_PARM", |
| 215 | [_IOC_NR(VIDIOC_G_STD)] = "VIDIOC_G_STD", |
| 216 | [_IOC_NR(VIDIOC_S_STD)] = "VIDIOC_S_STD", |
| 217 | [_IOC_NR(VIDIOC_ENUMSTD)] = "VIDIOC_ENUMSTD", |
| 218 | [_IOC_NR(VIDIOC_ENUMINPUT)] = "VIDIOC_ENUMINPUT", |
| 219 | [_IOC_NR(VIDIOC_G_CTRL)] = "VIDIOC_G_CTRL", |
| 220 | [_IOC_NR(VIDIOC_S_CTRL)] = "VIDIOC_S_CTRL", |
| 221 | [_IOC_NR(VIDIOC_G_TUNER)] = "VIDIOC_G_TUNER", |
| 222 | [_IOC_NR(VIDIOC_S_TUNER)] = "VIDIOC_S_TUNER", |
| 223 | [_IOC_NR(VIDIOC_G_AUDIO)] = "VIDIOC_G_AUDIO", |
| 224 | [_IOC_NR(VIDIOC_S_AUDIO)] = "VIDIOC_S_AUDIO", |
| 225 | [_IOC_NR(VIDIOC_QUERYCTRL)] = "VIDIOC_QUERYCTRL", |
| 226 | [_IOC_NR(VIDIOC_QUERYMENU)] = "VIDIOC_QUERYMENU", |
| 227 | [_IOC_NR(VIDIOC_G_INPUT)] = "VIDIOC_G_INPUT", |
| 228 | [_IOC_NR(VIDIOC_S_INPUT)] = "VIDIOC_S_INPUT", |
| 229 | [_IOC_NR(VIDIOC_G_OUTPUT)] = "VIDIOC_G_OUTPUT", |
| 230 | [_IOC_NR(VIDIOC_S_OUTPUT)] = "VIDIOC_S_OUTPUT", |
| 231 | [_IOC_NR(VIDIOC_ENUMOUTPUT)] = "VIDIOC_ENUMOUTPUT", |
| 232 | [_IOC_NR(VIDIOC_G_AUDOUT)] = "VIDIOC_G_AUDOUT", |
| 233 | [_IOC_NR(VIDIOC_S_AUDOUT)] = "VIDIOC_S_AUDOUT", |
| 234 | [_IOC_NR(VIDIOC_G_MODULATOR)] = "VIDIOC_G_MODULATOR", |
| 235 | [_IOC_NR(VIDIOC_S_MODULATOR)] = "VIDIOC_S_MODULATOR", |
| 236 | [_IOC_NR(VIDIOC_G_FREQUENCY)] = "VIDIOC_G_FREQUENCY", |
| 237 | [_IOC_NR(VIDIOC_S_FREQUENCY)] = "VIDIOC_S_FREQUENCY", |
| 238 | [_IOC_NR(VIDIOC_CROPCAP)] = "VIDIOC_CROPCAP", |
| 239 | [_IOC_NR(VIDIOC_G_CROP)] = "VIDIOC_G_CROP", |
| 240 | [_IOC_NR(VIDIOC_S_CROP)] = "VIDIOC_S_CROP", |
Tomasz Stanislawski | 0e8caac | 2011-08-10 10:37:47 -0300 | [diff] [blame] | 241 | [_IOC_NR(VIDIOC_G_SELECTION)] = "VIDIOC_G_SELECTION", |
| 242 | [_IOC_NR(VIDIOC_S_SELECTION)] = "VIDIOC_S_SELECTION", |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 243 | [_IOC_NR(VIDIOC_G_JPEGCOMP)] = "VIDIOC_G_JPEGCOMP", |
| 244 | [_IOC_NR(VIDIOC_S_JPEGCOMP)] = "VIDIOC_S_JPEGCOMP", |
| 245 | [_IOC_NR(VIDIOC_QUERYSTD)] = "VIDIOC_QUERYSTD", |
| 246 | [_IOC_NR(VIDIOC_TRY_FMT)] = "VIDIOC_TRY_FMT", |
| 247 | [_IOC_NR(VIDIOC_ENUMAUDIO)] = "VIDIOC_ENUMAUDIO", |
| 248 | [_IOC_NR(VIDIOC_ENUMAUDOUT)] = "VIDIOC_ENUMAUDOUT", |
| 249 | [_IOC_NR(VIDIOC_G_PRIORITY)] = "VIDIOC_G_PRIORITY", |
| 250 | [_IOC_NR(VIDIOC_S_PRIORITY)] = "VIDIOC_S_PRIORITY", |
| 251 | [_IOC_NR(VIDIOC_G_SLICED_VBI_CAP)] = "VIDIOC_G_SLICED_VBI_CAP", |
| 252 | [_IOC_NR(VIDIOC_LOG_STATUS)] = "VIDIOC_LOG_STATUS", |
| 253 | [_IOC_NR(VIDIOC_G_EXT_CTRLS)] = "VIDIOC_G_EXT_CTRLS", |
| 254 | [_IOC_NR(VIDIOC_S_EXT_CTRLS)] = "VIDIOC_S_EXT_CTRLS", |
| 255 | [_IOC_NR(VIDIOC_TRY_EXT_CTRLS)] = "VIDIOC_TRY_EXT_CTRLS", |
| 256 | #if 1 |
| 257 | [_IOC_NR(VIDIOC_ENUM_FRAMESIZES)] = "VIDIOC_ENUM_FRAMESIZES", |
| 258 | [_IOC_NR(VIDIOC_ENUM_FRAMEINTERVALS)] = "VIDIOC_ENUM_FRAMEINTERVALS", |
| 259 | [_IOC_NR(VIDIOC_G_ENC_INDEX)] = "VIDIOC_G_ENC_INDEX", |
| 260 | [_IOC_NR(VIDIOC_ENCODER_CMD)] = "VIDIOC_ENCODER_CMD", |
| 261 | [_IOC_NR(VIDIOC_TRY_ENCODER_CMD)] = "VIDIOC_TRY_ENCODER_CMD", |
| 262 | |
Hans Verkuil | a45c0ad | 2011-11-24 09:53:43 -0300 | [diff] [blame] | 263 | [_IOC_NR(VIDIOC_DECODER_CMD)] = "VIDIOC_DECODER_CMD", |
| 264 | [_IOC_NR(VIDIOC_TRY_DECODER_CMD)] = "VIDIOC_TRY_DECODER_CMD", |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 265 | [_IOC_NR(VIDIOC_DBG_S_REGISTER)] = "VIDIOC_DBG_S_REGISTER", |
| 266 | [_IOC_NR(VIDIOC_DBG_G_REGISTER)] = "VIDIOC_DBG_G_REGISTER", |
| 267 | |
Hans Verkuil | aecde8b5 | 2008-12-30 07:14:19 -0300 | [diff] [blame] | 268 | [_IOC_NR(VIDIOC_DBG_G_CHIP_IDENT)] = "VIDIOC_DBG_G_CHIP_IDENT", |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 269 | [_IOC_NR(VIDIOC_S_HW_FREQ_SEEK)] = "VIDIOC_S_HW_FREQ_SEEK", |
| 270 | #endif |
Muralidharan Karicheri | b6456c0 | 2009-11-19 12:00:31 -0300 | [diff] [blame] | 271 | [_IOC_NR(VIDIOC_ENUM_DV_PRESETS)] = "VIDIOC_ENUM_DV_PRESETS", |
| 272 | [_IOC_NR(VIDIOC_S_DV_PRESET)] = "VIDIOC_S_DV_PRESET", |
| 273 | [_IOC_NR(VIDIOC_G_DV_PRESET)] = "VIDIOC_G_DV_PRESET", |
| 274 | [_IOC_NR(VIDIOC_QUERY_DV_PRESET)] = "VIDIOC_QUERY_DV_PRESET", |
| 275 | [_IOC_NR(VIDIOC_S_DV_TIMINGS)] = "VIDIOC_S_DV_TIMINGS", |
| 276 | [_IOC_NR(VIDIOC_G_DV_TIMINGS)] = "VIDIOC_G_DV_TIMINGS", |
Sakari Ailus | fda1021 | 2010-02-24 19:19:05 -0300 | [diff] [blame] | 277 | [_IOC_NR(VIDIOC_DQEVENT)] = "VIDIOC_DQEVENT", |
| 278 | [_IOC_NR(VIDIOC_SUBSCRIBE_EVENT)] = "VIDIOC_SUBSCRIBE_EVENT", |
| 279 | [_IOC_NR(VIDIOC_UNSUBSCRIBE_EVENT)] = "VIDIOC_UNSUBSCRIBE_EVENT", |
Guennadi Liakhovetski | 2150158 | 2011-09-28 11:34:06 -0300 | [diff] [blame] | 280 | [_IOC_NR(VIDIOC_CREATE_BUFS)] = "VIDIOC_CREATE_BUFS", |
| 281 | [_IOC_NR(VIDIOC_PREPARE_BUF)] = "VIDIOC_PREPARE_BUF", |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 282 | }; |
| 283 | #define V4L2_IOCTLS ARRAY_SIZE(v4l2_ioctls) |
| 284 | |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 285 | /* Common ioctl debug function. This function can be used by |
| 286 | external ioctl messages as well as internal V4L ioctl */ |
| 287 | void v4l_printk_ioctl(unsigned int cmd) |
| 288 | { |
| 289 | char *dir, *type; |
| 290 | |
| 291 | switch (_IOC_TYPE(cmd)) { |
| 292 | case 'd': |
Hans Verkuil | 78a3b4d | 2009-04-01 03:41:09 -0300 | [diff] [blame] | 293 | type = "v4l2_int"; |
| 294 | break; |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 295 | case 'V': |
| 296 | if (_IOC_NR(cmd) >= V4L2_IOCTLS) { |
| 297 | type = "v4l2"; |
| 298 | break; |
| 299 | } |
| 300 | printk("%s", v4l2_ioctls[_IOC_NR(cmd)]); |
| 301 | return; |
| 302 | default: |
| 303 | type = "unknown"; |
| 304 | } |
| 305 | |
| 306 | switch (_IOC_DIR(cmd)) { |
| 307 | case _IOC_NONE: dir = "--"; break; |
| 308 | case _IOC_READ: dir = "r-"; break; |
| 309 | case _IOC_WRITE: dir = "-w"; break; |
| 310 | case _IOC_READ | _IOC_WRITE: dir = "rw"; break; |
| 311 | default: dir = "*ERR*"; break; |
| 312 | } |
| 313 | printk("%s ioctl '%c', dir=%s, #%d (0x%08x)", |
| 314 | type, _IOC_TYPE(cmd), dir, _IOC_NR(cmd), cmd); |
| 315 | } |
| 316 | EXPORT_SYMBOL(v4l_printk_ioctl); |
| 317 | |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 318 | static void dbgbuf(unsigned int cmd, struct video_device *vfd, |
| 319 | struct v4l2_buffer *p) |
| 320 | { |
| 321 | struct v4l2_timecode *tc = &p->timecode; |
Pawel Osciak | d14e6d7 | 2010-12-23 04:15:27 -0300 | [diff] [blame] | 322 | struct v4l2_plane *plane; |
| 323 | int i; |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 324 | |
| 325 | dbgarg(cmd, "%02ld:%02d:%02d.%08ld index=%d, type=%s, " |
Pawel Osciak | d14e6d7 | 2010-12-23 04:15:27 -0300 | [diff] [blame] | 326 | "flags=0x%08d, field=%0d, sequence=%d, memory=%s\n", |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 327 | p->timestamp.tv_sec / 3600, |
| 328 | (int)(p->timestamp.tv_sec / 60) % 60, |
| 329 | (int)(p->timestamp.tv_sec % 60), |
Alexander Beregalov | b045979 | 2008-09-03 16:47:38 -0300 | [diff] [blame] | 330 | (long)p->timestamp.tv_usec, |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 331 | p->index, |
| 332 | prt_names(p->type, v4l2_type_names), |
Pawel Osciak | d14e6d7 | 2010-12-23 04:15:27 -0300 | [diff] [blame] | 333 | p->flags, p->field, p->sequence, |
| 334 | prt_names(p->memory, v4l2_memory_names)); |
| 335 | |
| 336 | if (V4L2_TYPE_IS_MULTIPLANAR(p->type) && p->m.planes) { |
| 337 | for (i = 0; i < p->length; ++i) { |
| 338 | plane = &p->m.planes[i]; |
| 339 | dbgarg2("plane %d: bytesused=%d, data_offset=0x%08x " |
| 340 | "offset/userptr=0x%08lx, length=%d\n", |
| 341 | i, plane->bytesused, plane->data_offset, |
| 342 | plane->m.userptr, plane->length); |
| 343 | } |
| 344 | } else { |
| 345 | dbgarg2("bytesused=%d, offset/userptr=0x%08lx, length=%d\n", |
| 346 | p->bytesused, p->m.userptr, p->length); |
| 347 | } |
| 348 | |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 349 | dbgarg2("timecode=%02d:%02d:%02d type=%d, " |
| 350 | "flags=0x%08d, frames=%d, userbits=0x%08x\n", |
| 351 | tc->hours, tc->minutes, tc->seconds, |
| 352 | tc->type, tc->flags, tc->frames, *(__u32 *)tc->userbits); |
| 353 | } |
| 354 | |
| 355 | static inline void dbgrect(struct video_device *vfd, char *s, |
| 356 | struct v4l2_rect *r) |
| 357 | { |
| 358 | dbgarg2("%sRect start at %dx%d, size=%dx%d\n", s, r->left, r->top, |
| 359 | r->width, r->height); |
| 360 | }; |
| 361 | |
| 362 | static inline void v4l_print_pix_fmt(struct video_device *vfd, |
| 363 | struct v4l2_pix_format *fmt) |
| 364 | { |
| 365 | dbgarg2("width=%d, height=%d, format=%c%c%c%c, field=%s, " |
| 366 | "bytesperline=%d sizeimage=%d, colorspace=%d\n", |
| 367 | fmt->width, fmt->height, |
| 368 | (fmt->pixelformat & 0xff), |
| 369 | (fmt->pixelformat >> 8) & 0xff, |
| 370 | (fmt->pixelformat >> 16) & 0xff, |
| 371 | (fmt->pixelformat >> 24) & 0xff, |
| 372 | prt_names(fmt->field, v4l2_field_names), |
| 373 | fmt->bytesperline, fmt->sizeimage, fmt->colorspace); |
| 374 | }; |
| 375 | |
Pawel Osciak | d14e6d7 | 2010-12-23 04:15:27 -0300 | [diff] [blame] | 376 | static inline void v4l_print_pix_fmt_mplane(struct video_device *vfd, |
| 377 | struct v4l2_pix_format_mplane *fmt) |
| 378 | { |
| 379 | int i; |
| 380 | |
| 381 | dbgarg2("width=%d, height=%d, format=%c%c%c%c, field=%s, " |
| 382 | "colorspace=%d, num_planes=%d\n", |
| 383 | fmt->width, fmt->height, |
| 384 | (fmt->pixelformat & 0xff), |
| 385 | (fmt->pixelformat >> 8) & 0xff, |
| 386 | (fmt->pixelformat >> 16) & 0xff, |
| 387 | (fmt->pixelformat >> 24) & 0xff, |
| 388 | prt_names(fmt->field, v4l2_field_names), |
| 389 | fmt->colorspace, fmt->num_planes); |
| 390 | |
| 391 | for (i = 0; i < fmt->num_planes; ++i) |
| 392 | dbgarg2("plane %d: bytesperline=%d sizeimage=%d\n", i, |
| 393 | fmt->plane_fmt[i].bytesperline, |
| 394 | fmt->plane_fmt[i].sizeimage); |
| 395 | } |
| 396 | |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 397 | static inline void v4l_print_ext_ctrls(unsigned int cmd, |
| 398 | struct video_device *vfd, struct v4l2_ext_controls *c, int show_vals) |
| 399 | { |
| 400 | __u32 i; |
| 401 | |
| 402 | if (!(vfd->debug & V4L2_DEBUG_IOCTL_ARG)) |
| 403 | return; |
| 404 | dbgarg(cmd, ""); |
| 405 | printk(KERN_CONT "class=0x%x", c->ctrl_class); |
| 406 | for (i = 0; i < c->count; i++) { |
Hans Verkuil | 6b5a949 | 2009-08-11 18:47:18 -0300 | [diff] [blame] | 407 | if (show_vals && !c->controls[i].size) |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 408 | printk(KERN_CONT " id/val=0x%x/0x%x", |
| 409 | c->controls[i].id, c->controls[i].value); |
| 410 | else |
Hans Verkuil | 6b5a949 | 2009-08-11 18:47:18 -0300 | [diff] [blame] | 411 | printk(KERN_CONT " id=0x%x,size=%u", |
| 412 | c->controls[i].id, c->controls[i].size); |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 413 | } |
| 414 | printk(KERN_CONT "\n"); |
| 415 | }; |
| 416 | |
| 417 | static inline int check_ext_ctrls(struct v4l2_ext_controls *c, int allow_priv) |
| 418 | { |
| 419 | __u32 i; |
| 420 | |
| 421 | /* zero the reserved fields */ |
| 422 | c->reserved[0] = c->reserved[1] = 0; |
Hans Verkuil | 6b5a949 | 2009-08-11 18:47:18 -0300 | [diff] [blame] | 423 | for (i = 0; i < c->count; i++) |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 424 | c->controls[i].reserved2[0] = 0; |
Hans Verkuil | 6b5a949 | 2009-08-11 18:47:18 -0300 | [diff] [blame] | 425 | |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 426 | /* V4L2_CID_PRIVATE_BASE cannot be used as control class |
| 427 | when using extended controls. |
| 428 | Only when passed in through VIDIOC_G_CTRL and VIDIOC_S_CTRL |
| 429 | is it allowed for backwards compatibility. |
| 430 | */ |
| 431 | if (!allow_priv && c->ctrl_class == V4L2_CID_PRIVATE_BASE) |
| 432 | return 0; |
| 433 | /* Check that all controls are from the same control class. */ |
| 434 | for (i = 0; i < c->count; i++) { |
| 435 | if (V4L2_CTRL_ID2CLASS(c->controls[i].id) != c->ctrl_class) { |
| 436 | c->error_idx = i; |
| 437 | return 0; |
| 438 | } |
| 439 | } |
| 440 | return 1; |
| 441 | } |
| 442 | |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 443 | static int check_fmt(const struct v4l2_ioctl_ops *ops, enum v4l2_buf_type type) |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 444 | { |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 445 | if (ops == NULL) |
| 446 | return -EINVAL; |
| 447 | |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 448 | switch (type) { |
| 449 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: |
Pawel Osciak | d14e6d7 | 2010-12-23 04:15:27 -0300 | [diff] [blame] | 450 | if (ops->vidioc_g_fmt_vid_cap || |
| 451 | ops->vidioc_g_fmt_vid_cap_mplane) |
| 452 | return 0; |
| 453 | break; |
| 454 | case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE: |
| 455 | if (ops->vidioc_g_fmt_vid_cap_mplane) |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 456 | return 0; |
| 457 | break; |
| 458 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: |
Trent Piepho | 1175d61 | 2009-04-30 21:03:34 -0300 | [diff] [blame] | 459 | if (ops->vidioc_g_fmt_vid_overlay) |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 460 | return 0; |
| 461 | break; |
| 462 | case V4L2_BUF_TYPE_VIDEO_OUTPUT: |
Pawel Osciak | d14e6d7 | 2010-12-23 04:15:27 -0300 | [diff] [blame] | 463 | if (ops->vidioc_g_fmt_vid_out || |
| 464 | ops->vidioc_g_fmt_vid_out_mplane) |
| 465 | return 0; |
| 466 | break; |
| 467 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE: |
| 468 | if (ops->vidioc_g_fmt_vid_out_mplane) |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 469 | return 0; |
| 470 | break; |
| 471 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY: |
Trent Piepho | 1175d61 | 2009-04-30 21:03:34 -0300 | [diff] [blame] | 472 | if (ops->vidioc_g_fmt_vid_out_overlay) |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 473 | return 0; |
| 474 | break; |
| 475 | case V4L2_BUF_TYPE_VBI_CAPTURE: |
Trent Piepho | 1175d61 | 2009-04-30 21:03:34 -0300 | [diff] [blame] | 476 | if (ops->vidioc_g_fmt_vbi_cap) |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 477 | return 0; |
| 478 | break; |
| 479 | case V4L2_BUF_TYPE_VBI_OUTPUT: |
Trent Piepho | 1175d61 | 2009-04-30 21:03:34 -0300 | [diff] [blame] | 480 | if (ops->vidioc_g_fmt_vbi_out) |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 481 | return 0; |
| 482 | break; |
| 483 | case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE: |
Trent Piepho | 1175d61 | 2009-04-30 21:03:34 -0300 | [diff] [blame] | 484 | if (ops->vidioc_g_fmt_sliced_vbi_cap) |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 485 | return 0; |
| 486 | break; |
| 487 | case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT: |
Trent Piepho | 1175d61 | 2009-04-30 21:03:34 -0300 | [diff] [blame] | 488 | if (ops->vidioc_g_fmt_sliced_vbi_out) |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 489 | return 0; |
| 490 | break; |
| 491 | case V4L2_BUF_TYPE_PRIVATE: |
Trent Piepho | 1175d61 | 2009-04-30 21:03:34 -0300 | [diff] [blame] | 492 | if (ops->vidioc_g_fmt_type_private) |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 493 | return 0; |
| 494 | break; |
| 495 | } |
| 496 | return -EINVAL; |
| 497 | } |
| 498 | |
Hans Verkuil | 069b747 | 2008-12-30 07:04:34 -0300 | [diff] [blame] | 499 | static long __video_do_ioctl(struct file *file, |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 500 | unsigned int cmd, void *arg) |
| 501 | { |
| 502 | struct video_device *vfd = video_devdata(file); |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 503 | const struct v4l2_ioctl_ops *ops = vfd->ioctl_ops; |
Hans Verkuil | d5fbf32 | 2008-10-18 13:39:53 -0300 | [diff] [blame] | 504 | void *fh = file->private_data; |
Hans Verkuil | 99cd47bc | 2011-03-11 19:00:56 -0300 | [diff] [blame] | 505 | struct v4l2_fh *vfh = NULL; |
Hans Verkuil | b1a873a | 2011-03-22 10:14:07 -0300 | [diff] [blame] | 506 | int use_fh_prio = 0; |
Hans Verkuil | 93d5a30 | 2011-08-09 09:32:06 -0300 | [diff] [blame] | 507 | long ret_prio = 0; |
Mauro Carvalho Chehab | 9190d19 | 2011-07-06 14:08:08 -0300 | [diff] [blame] | 508 | long ret = -ENOTTY; |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 509 | |
Hans Verkuil | 6a71788 | 2010-04-06 15:56:08 -0300 | [diff] [blame] | 510 | if (ops == NULL) { |
| 511 | printk(KERN_WARNING "videodev: \"%s\" has no ioctl_ops.\n", |
| 512 | vfd->name); |
Mauro Carvalho Chehab | 9190d19 | 2011-07-06 14:08:08 -0300 | [diff] [blame] | 513 | return ret; |
Hans Verkuil | 6a71788 | 2010-04-06 15:56:08 -0300 | [diff] [blame] | 514 | } |
| 515 | |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 516 | if ((vfd->debug & V4L2_DEBUG_IOCTL) && |
| 517 | !(vfd->debug & V4L2_DEBUG_IOCTL_ARG)) { |
| 518 | v4l_print_ioctl(vfd->name, cmd); |
| 519 | printk(KERN_CONT "\n"); |
| 520 | } |
| 521 | |
Hans Verkuil | b1a873a | 2011-03-22 10:14:07 -0300 | [diff] [blame] | 522 | if (test_bit(V4L2_FL_USES_V4L2_FH, &vfd->flags)) { |
Hans Verkuil | 99cd47bc | 2011-03-11 19:00:56 -0300 | [diff] [blame] | 523 | vfh = file->private_data; |
Hans Verkuil | b1a873a | 2011-03-22 10:14:07 -0300 | [diff] [blame] | 524 | use_fh_prio = test_bit(V4L2_FL_USE_FH_PRIO, &vfd->flags); |
| 525 | } |
Hans Verkuil | 99cd47bc | 2011-03-11 19:00:56 -0300 | [diff] [blame] | 526 | |
Hans Verkuil | 93d5a30 | 2011-08-09 09:32:06 -0300 | [diff] [blame] | 527 | if (use_fh_prio) |
| 528 | ret_prio = v4l2_prio_check(vfd->prio, vfh->prio); |
Hans Verkuil | 99cd47bc | 2011-03-11 19:00:56 -0300 | [diff] [blame] | 529 | |
Hans Verkuil | 6a71788 | 2010-04-06 15:56:08 -0300 | [diff] [blame] | 530 | switch (cmd) { |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 531 | |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 532 | /* --- capabilities ------------------------------------------ */ |
| 533 | case VIDIOC_QUERYCAP: |
| 534 | { |
| 535 | struct v4l2_capability *cap = (struct v4l2_capability *)arg; |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 536 | |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 537 | if (!ops->vidioc_querycap) |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 538 | break; |
| 539 | |
Mauro Carvalho Chehab | ae6db51 | 2011-06-24 13:14:14 -0300 | [diff] [blame] | 540 | cap->version = LINUX_VERSION_CODE; |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 541 | ret = ops->vidioc_querycap(file, fh, cap); |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 542 | if (!ret) |
| 543 | dbgarg(cmd, "driver=%s, card=%s, bus=%s, " |
| 544 | "version=0x%08x, " |
Hans Verkuil | 583aa3a | 2012-01-11 06:45:05 -0300 | [diff] [blame] | 545 | "capabilities=0x%08x, " |
| 546 | "device_caps=0x%08x\n", |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 547 | cap->driver, cap->card, cap->bus_info, |
| 548 | cap->version, |
Hans Verkuil | 583aa3a | 2012-01-11 06:45:05 -0300 | [diff] [blame] | 549 | cap->capabilities, |
| 550 | cap->device_caps); |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 551 | break; |
| 552 | } |
| 553 | |
| 554 | /* --- priority ------------------------------------------ */ |
| 555 | case VIDIOC_G_PRIORITY: |
| 556 | { |
| 557 | enum v4l2_priority *p = arg; |
| 558 | |
Hans Verkuil | 99cd47bc | 2011-03-11 19:00:56 -0300 | [diff] [blame] | 559 | if (ops->vidioc_g_priority) { |
| 560 | ret = ops->vidioc_g_priority(file, fh, p); |
Hans Verkuil | b1a873a | 2011-03-22 10:14:07 -0300 | [diff] [blame] | 561 | } else if (use_fh_prio) { |
Hans Verkuil | 99cd47bc | 2011-03-11 19:00:56 -0300 | [diff] [blame] | 562 | *p = v4l2_prio_max(&vfd->v4l2_dev->prio); |
| 563 | ret = 0; |
| 564 | } |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 565 | if (!ret) |
| 566 | dbgarg(cmd, "priority is %d\n", *p); |
| 567 | break; |
| 568 | } |
| 569 | case VIDIOC_S_PRIORITY: |
| 570 | { |
| 571 | enum v4l2_priority *p = arg; |
| 572 | |
Hans Verkuil | b1a873a | 2011-03-22 10:14:07 -0300 | [diff] [blame] | 573 | if (!ops->vidioc_s_priority && !use_fh_prio) |
Mauro Carvalho Chehab | a5f2db5 | 2011-07-31 09:37:56 -0300 | [diff] [blame] | 574 | break; |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 575 | dbgarg(cmd, "setting priority to %d\n", *p); |
Hans Verkuil | 99cd47bc | 2011-03-11 19:00:56 -0300 | [diff] [blame] | 576 | if (ops->vidioc_s_priority) |
| 577 | ret = ops->vidioc_s_priority(file, fh, *p); |
| 578 | else |
Hans Verkuil | 93d5a30 | 2011-08-09 09:32:06 -0300 | [diff] [blame] | 579 | ret = ret_prio ? ret_prio : |
| 580 | v4l2_prio_change(&vfd->v4l2_dev->prio, |
| 581 | &vfh->prio, *p); |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 582 | break; |
| 583 | } |
| 584 | |
| 585 | /* --- capture ioctls ---------------------------------------- */ |
| 586 | case VIDIOC_ENUM_FMT: |
| 587 | { |
| 588 | struct v4l2_fmtdesc *f = arg; |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 589 | |
Trent Piepho | 19c96e4 | 2009-03-04 01:21:02 -0300 | [diff] [blame] | 590 | switch (f->type) { |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 591 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: |
Mauro Carvalho Chehab | a5f2db5 | 2011-07-31 09:37:56 -0300 | [diff] [blame] | 592 | if (likely(ops->vidioc_enum_fmt_vid_cap)) |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 593 | ret = ops->vidioc_enum_fmt_vid_cap(file, fh, f); |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 594 | break; |
Pawel Osciak | d14e6d7 | 2010-12-23 04:15:27 -0300 | [diff] [blame] | 595 | case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE: |
Mauro Carvalho Chehab | a5f2db5 | 2011-07-31 09:37:56 -0300 | [diff] [blame] | 596 | if (likely(ops->vidioc_enum_fmt_vid_cap_mplane)) |
Pawel Osciak | d14e6d7 | 2010-12-23 04:15:27 -0300 | [diff] [blame] | 597 | ret = ops->vidioc_enum_fmt_vid_cap_mplane(file, |
| 598 | fh, f); |
| 599 | break; |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 600 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: |
Mauro Carvalho Chehab | a5f2db5 | 2011-07-31 09:37:56 -0300 | [diff] [blame] | 601 | if (likely(ops->vidioc_enum_fmt_vid_overlay)) |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 602 | ret = ops->vidioc_enum_fmt_vid_overlay(file, |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 603 | fh, f); |
| 604 | break; |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 605 | case V4L2_BUF_TYPE_VIDEO_OUTPUT: |
Mauro Carvalho Chehab | a5f2db5 | 2011-07-31 09:37:56 -0300 | [diff] [blame] | 606 | if (likely(ops->vidioc_enum_fmt_vid_out)) |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 607 | ret = ops->vidioc_enum_fmt_vid_out(file, fh, f); |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 608 | break; |
Pawel Osciak | d14e6d7 | 2010-12-23 04:15:27 -0300 | [diff] [blame] | 609 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE: |
Mauro Carvalho Chehab | a5f2db5 | 2011-07-31 09:37:56 -0300 | [diff] [blame] | 610 | if (likely(ops->vidioc_enum_fmt_vid_out_mplane)) |
Pawel Osciak | d14e6d7 | 2010-12-23 04:15:27 -0300 | [diff] [blame] | 611 | ret = ops->vidioc_enum_fmt_vid_out_mplane(file, |
| 612 | fh, f); |
| 613 | break; |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 614 | case V4L2_BUF_TYPE_PRIVATE: |
Mauro Carvalho Chehab | a5f2db5 | 2011-07-31 09:37:56 -0300 | [diff] [blame] | 615 | if (likely(ops->vidioc_enum_fmt_type_private)) |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 616 | ret = ops->vidioc_enum_fmt_type_private(file, |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 617 | fh, f); |
| 618 | break; |
| 619 | default: |
| 620 | break; |
| 621 | } |
Mauro Carvalho Chehab | a5f2db5 | 2011-07-31 09:37:56 -0300 | [diff] [blame] | 622 | if (likely (!ret)) |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 623 | dbgarg(cmd, "index=%d, type=%d, flags=%d, " |
| 624 | "pixelformat=%c%c%c%c, description='%s'\n", |
| 625 | f->index, f->type, f->flags, |
| 626 | (f->pixelformat & 0xff), |
| 627 | (f->pixelformat >> 8) & 0xff, |
| 628 | (f->pixelformat >> 16) & 0xff, |
| 629 | (f->pixelformat >> 24) & 0xff, |
| 630 | f->description); |
Hans Verkuil | 93d5a30 | 2011-08-09 09:32:06 -0300 | [diff] [blame] | 631 | else if (ret == -ENOTTY && |
| 632 | (ops->vidioc_enum_fmt_vid_cap || |
| 633 | ops->vidioc_enum_fmt_vid_out || |
| 634 | ops->vidioc_enum_fmt_vid_cap_mplane || |
| 635 | ops->vidioc_enum_fmt_vid_out_mplane || |
| 636 | ops->vidioc_enum_fmt_vid_overlay || |
| 637 | ops->vidioc_enum_fmt_type_private)) |
| 638 | ret = -EINVAL; |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 639 | break; |
| 640 | } |
| 641 | case VIDIOC_G_FMT: |
| 642 | { |
| 643 | struct v4l2_format *f = (struct v4l2_format *)arg; |
| 644 | |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 645 | /* FIXME: Should be one dump per type */ |
| 646 | dbgarg(cmd, "type=%s\n", prt_names(f->type, v4l2_type_names)); |
| 647 | |
| 648 | switch (f->type) { |
| 649 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: |
Tomasz Stanislawski | 1d0c86c | 2011-07-01 06:25:46 -0300 | [diff] [blame] | 650 | if (ops->vidioc_g_fmt_vid_cap) |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 651 | ret = ops->vidioc_g_fmt_vid_cap(file, fh, f); |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 652 | if (!ret) |
| 653 | v4l_print_pix_fmt(vfd, &f->fmt.pix); |
| 654 | break; |
Pawel Osciak | d14e6d7 | 2010-12-23 04:15:27 -0300 | [diff] [blame] | 655 | case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE: |
Tomasz Stanislawski | 1d0c86c | 2011-07-01 06:25:46 -0300 | [diff] [blame] | 656 | if (ops->vidioc_g_fmt_vid_cap_mplane) |
Pawel Osciak | d14e6d7 | 2010-12-23 04:15:27 -0300 | [diff] [blame] | 657 | ret = ops->vidioc_g_fmt_vid_cap_mplane(file, |
| 658 | fh, f); |
Pawel Osciak | d14e6d7 | 2010-12-23 04:15:27 -0300 | [diff] [blame] | 659 | if (!ret) |
| 660 | v4l_print_pix_fmt_mplane(vfd, &f->fmt.pix_mp); |
| 661 | break; |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 662 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: |
Mauro Carvalho Chehab | a5f2db5 | 2011-07-31 09:37:56 -0300 | [diff] [blame] | 663 | if (likely(ops->vidioc_g_fmt_vid_overlay)) |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 664 | ret = ops->vidioc_g_fmt_vid_overlay(file, |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 665 | fh, f); |
| 666 | break; |
| 667 | case V4L2_BUF_TYPE_VIDEO_OUTPUT: |
Tomasz Stanislawski | 1d0c86c | 2011-07-01 06:25:46 -0300 | [diff] [blame] | 668 | if (ops->vidioc_g_fmt_vid_out) |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 669 | ret = ops->vidioc_g_fmt_vid_out(file, fh, f); |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 670 | if (!ret) |
| 671 | v4l_print_pix_fmt(vfd, &f->fmt.pix); |
| 672 | break; |
Pawel Osciak | d14e6d7 | 2010-12-23 04:15:27 -0300 | [diff] [blame] | 673 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE: |
Tomasz Stanislawski | 1d0c86c | 2011-07-01 06:25:46 -0300 | [diff] [blame] | 674 | if (ops->vidioc_g_fmt_vid_out_mplane) |
Pawel Osciak | d14e6d7 | 2010-12-23 04:15:27 -0300 | [diff] [blame] | 675 | ret = ops->vidioc_g_fmt_vid_out_mplane(file, |
| 676 | fh, f); |
Pawel Osciak | d14e6d7 | 2010-12-23 04:15:27 -0300 | [diff] [blame] | 677 | if (!ret) |
| 678 | v4l_print_pix_fmt_mplane(vfd, &f->fmt.pix_mp); |
| 679 | break; |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 680 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY: |
Mauro Carvalho Chehab | a5f2db5 | 2011-07-31 09:37:56 -0300 | [diff] [blame] | 681 | if (likely(ops->vidioc_g_fmt_vid_out_overlay)) |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 682 | ret = ops->vidioc_g_fmt_vid_out_overlay(file, |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 683 | fh, f); |
| 684 | break; |
| 685 | case V4L2_BUF_TYPE_VBI_CAPTURE: |
Mauro Carvalho Chehab | a5f2db5 | 2011-07-31 09:37:56 -0300 | [diff] [blame] | 686 | if (likely(ops->vidioc_g_fmt_vbi_cap)) |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 687 | ret = ops->vidioc_g_fmt_vbi_cap(file, fh, f); |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 688 | break; |
| 689 | case V4L2_BUF_TYPE_VBI_OUTPUT: |
Mauro Carvalho Chehab | a5f2db5 | 2011-07-31 09:37:56 -0300 | [diff] [blame] | 690 | if (likely(ops->vidioc_g_fmt_vbi_out)) |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 691 | ret = ops->vidioc_g_fmt_vbi_out(file, fh, f); |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 692 | break; |
| 693 | case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE: |
Mauro Carvalho Chehab | a5f2db5 | 2011-07-31 09:37:56 -0300 | [diff] [blame] | 694 | if (likely(ops->vidioc_g_fmt_sliced_vbi_cap)) |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 695 | ret = ops->vidioc_g_fmt_sliced_vbi_cap(file, |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 696 | fh, f); |
| 697 | break; |
| 698 | case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT: |
Mauro Carvalho Chehab | a5f2db5 | 2011-07-31 09:37:56 -0300 | [diff] [blame] | 699 | if (likely(ops->vidioc_g_fmt_sliced_vbi_out)) |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 700 | ret = ops->vidioc_g_fmt_sliced_vbi_out(file, |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 701 | fh, f); |
| 702 | break; |
| 703 | case V4L2_BUF_TYPE_PRIVATE: |
Mauro Carvalho Chehab | a5f2db5 | 2011-07-31 09:37:56 -0300 | [diff] [blame] | 704 | if (likely(ops->vidioc_g_fmt_type_private)) |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 705 | ret = ops->vidioc_g_fmt_type_private(file, |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 706 | fh, f); |
| 707 | break; |
| 708 | } |
Hans Verkuil | 93d5a30 | 2011-08-09 09:32:06 -0300 | [diff] [blame] | 709 | if (unlikely(ret == -ENOTTY && have_fmt_ops(g))) |
| 710 | ret = -EINVAL; |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 711 | |
| 712 | break; |
| 713 | } |
| 714 | case VIDIOC_S_FMT: |
| 715 | { |
| 716 | struct v4l2_format *f = (struct v4l2_format *)arg; |
| 717 | |
Hans Verkuil | 93d5a30 | 2011-08-09 09:32:06 -0300 | [diff] [blame] | 718 | if (!have_fmt_ops(s)) |
| 719 | break; |
| 720 | if (ret_prio) { |
| 721 | ret = ret_prio; |
| 722 | break; |
| 723 | } |
| 724 | ret = -EINVAL; |
| 725 | |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 726 | /* FIXME: Should be one dump per type */ |
| 727 | dbgarg(cmd, "type=%s\n", prt_names(f->type, v4l2_type_names)); |
| 728 | |
| 729 | switch (f->type) { |
| 730 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: |
Trent Piepho | 7ecc0cf | 2009-04-30 21:03:34 -0300 | [diff] [blame] | 731 | CLEAR_AFTER_FIELD(f, fmt.pix); |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 732 | v4l_print_pix_fmt(vfd, &f->fmt.pix); |
Tomasz Stanislawski | 1d0c86c | 2011-07-01 06:25:46 -0300 | [diff] [blame] | 733 | if (ops->vidioc_s_fmt_vid_cap) |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 734 | ret = ops->vidioc_s_fmt_vid_cap(file, fh, f); |
Pawel Osciak | d14e6d7 | 2010-12-23 04:15:27 -0300 | [diff] [blame] | 735 | break; |
| 736 | case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE: |
| 737 | CLEAR_AFTER_FIELD(f, fmt.pix_mp); |
| 738 | v4l_print_pix_fmt_mplane(vfd, &f->fmt.pix_mp); |
Tomasz Stanislawski | 1d0c86c | 2011-07-01 06:25:46 -0300 | [diff] [blame] | 739 | if (ops->vidioc_s_fmt_vid_cap_mplane) |
Pawel Osciak | d14e6d7 | 2010-12-23 04:15:27 -0300 | [diff] [blame] | 740 | ret = ops->vidioc_s_fmt_vid_cap_mplane(file, |
| 741 | fh, f); |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 742 | break; |
| 743 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: |
Trent Piepho | 7ecc0cf | 2009-04-30 21:03:34 -0300 | [diff] [blame] | 744 | CLEAR_AFTER_FIELD(f, fmt.win); |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 745 | if (ops->vidioc_s_fmt_vid_overlay) |
| 746 | ret = ops->vidioc_s_fmt_vid_overlay(file, |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 747 | fh, f); |
| 748 | break; |
| 749 | case V4L2_BUF_TYPE_VIDEO_OUTPUT: |
Trent Piepho | 7ecc0cf | 2009-04-30 21:03:34 -0300 | [diff] [blame] | 750 | CLEAR_AFTER_FIELD(f, fmt.pix); |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 751 | v4l_print_pix_fmt(vfd, &f->fmt.pix); |
Tomasz Stanislawski | 1d0c86c | 2011-07-01 06:25:46 -0300 | [diff] [blame] | 752 | if (ops->vidioc_s_fmt_vid_out) |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 753 | ret = ops->vidioc_s_fmt_vid_out(file, fh, f); |
Pawel Osciak | d14e6d7 | 2010-12-23 04:15:27 -0300 | [diff] [blame] | 754 | break; |
| 755 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE: |
| 756 | CLEAR_AFTER_FIELD(f, fmt.pix_mp); |
| 757 | v4l_print_pix_fmt_mplane(vfd, &f->fmt.pix_mp); |
Tomasz Stanislawski | 1d0c86c | 2011-07-01 06:25:46 -0300 | [diff] [blame] | 758 | if (ops->vidioc_s_fmt_vid_out_mplane) |
Pawel Osciak | d14e6d7 | 2010-12-23 04:15:27 -0300 | [diff] [blame] | 759 | ret = ops->vidioc_s_fmt_vid_out_mplane(file, |
| 760 | fh, f); |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 761 | break; |
| 762 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY: |
Trent Piepho | 7ecc0cf | 2009-04-30 21:03:34 -0300 | [diff] [blame] | 763 | CLEAR_AFTER_FIELD(f, fmt.win); |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 764 | if (ops->vidioc_s_fmt_vid_out_overlay) |
| 765 | ret = ops->vidioc_s_fmt_vid_out_overlay(file, |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 766 | fh, f); |
| 767 | break; |
| 768 | case V4L2_BUF_TYPE_VBI_CAPTURE: |
Trent Piepho | 7ecc0cf | 2009-04-30 21:03:34 -0300 | [diff] [blame] | 769 | CLEAR_AFTER_FIELD(f, fmt.vbi); |
Mauro Carvalho Chehab | a5f2db5 | 2011-07-31 09:37:56 -0300 | [diff] [blame] | 770 | if (likely(ops->vidioc_s_fmt_vbi_cap)) |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 771 | ret = ops->vidioc_s_fmt_vbi_cap(file, fh, f); |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 772 | break; |
| 773 | case V4L2_BUF_TYPE_VBI_OUTPUT: |
Trent Piepho | 7ecc0cf | 2009-04-30 21:03:34 -0300 | [diff] [blame] | 774 | CLEAR_AFTER_FIELD(f, fmt.vbi); |
Mauro Carvalho Chehab | a5f2db5 | 2011-07-31 09:37:56 -0300 | [diff] [blame] | 775 | if (likely(ops->vidioc_s_fmt_vbi_out)) |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 776 | ret = ops->vidioc_s_fmt_vbi_out(file, fh, f); |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 777 | break; |
| 778 | case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE: |
Trent Piepho | 7ecc0cf | 2009-04-30 21:03:34 -0300 | [diff] [blame] | 779 | CLEAR_AFTER_FIELD(f, fmt.sliced); |
Mauro Carvalho Chehab | a5f2db5 | 2011-07-31 09:37:56 -0300 | [diff] [blame] | 780 | if (likely(ops->vidioc_s_fmt_sliced_vbi_cap)) |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 781 | ret = ops->vidioc_s_fmt_sliced_vbi_cap(file, |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 782 | fh, f); |
| 783 | break; |
| 784 | case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT: |
Trent Piepho | 7ecc0cf | 2009-04-30 21:03:34 -0300 | [diff] [blame] | 785 | CLEAR_AFTER_FIELD(f, fmt.sliced); |
Mauro Carvalho Chehab | a5f2db5 | 2011-07-31 09:37:56 -0300 | [diff] [blame] | 786 | if (likely(ops->vidioc_s_fmt_sliced_vbi_out)) |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 787 | ret = ops->vidioc_s_fmt_sliced_vbi_out(file, |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 788 | fh, f); |
Mauro Carvalho Chehab | a5f2db5 | 2011-07-31 09:37:56 -0300 | [diff] [blame] | 789 | |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 790 | break; |
| 791 | case V4L2_BUF_TYPE_PRIVATE: |
Trent Piepho | 7ecc0cf | 2009-04-30 21:03:34 -0300 | [diff] [blame] | 792 | /* CLEAR_AFTER_FIELD(f, fmt.raw_data); <- does nothing */ |
Mauro Carvalho Chehab | a5f2db5 | 2011-07-31 09:37:56 -0300 | [diff] [blame] | 793 | if (likely(ops->vidioc_s_fmt_type_private)) |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 794 | ret = ops->vidioc_s_fmt_type_private(file, |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 795 | fh, f); |
| 796 | break; |
| 797 | } |
| 798 | break; |
| 799 | } |
| 800 | case VIDIOC_TRY_FMT: |
| 801 | { |
| 802 | struct v4l2_format *f = (struct v4l2_format *)arg; |
| 803 | |
| 804 | /* FIXME: Should be one dump per type */ |
| 805 | dbgarg(cmd, "type=%s\n", prt_names(f->type, |
| 806 | v4l2_type_names)); |
| 807 | switch (f->type) { |
| 808 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: |
Trent Piepho | 7ecc0cf | 2009-04-30 21:03:34 -0300 | [diff] [blame] | 809 | CLEAR_AFTER_FIELD(f, fmt.pix); |
Tomasz Stanislawski | 1d0c86c | 2011-07-01 06:25:46 -0300 | [diff] [blame] | 810 | if (ops->vidioc_try_fmt_vid_cap) |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 811 | ret = ops->vidioc_try_fmt_vid_cap(file, fh, f); |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 812 | if (!ret) |
| 813 | v4l_print_pix_fmt(vfd, &f->fmt.pix); |
| 814 | break; |
Pawel Osciak | d14e6d7 | 2010-12-23 04:15:27 -0300 | [diff] [blame] | 815 | case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE: |
| 816 | CLEAR_AFTER_FIELD(f, fmt.pix_mp); |
Tomasz Stanislawski | 1d0c86c | 2011-07-01 06:25:46 -0300 | [diff] [blame] | 817 | if (ops->vidioc_try_fmt_vid_cap_mplane) |
Pawel Osciak | d14e6d7 | 2010-12-23 04:15:27 -0300 | [diff] [blame] | 818 | ret = ops->vidioc_try_fmt_vid_cap_mplane(file, |
| 819 | fh, f); |
Pawel Osciak | d14e6d7 | 2010-12-23 04:15:27 -0300 | [diff] [blame] | 820 | if (!ret) |
| 821 | v4l_print_pix_fmt_mplane(vfd, &f->fmt.pix_mp); |
| 822 | break; |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 823 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: |
Trent Piepho | 7ecc0cf | 2009-04-30 21:03:34 -0300 | [diff] [blame] | 824 | CLEAR_AFTER_FIELD(f, fmt.win); |
Mauro Carvalho Chehab | a5f2db5 | 2011-07-31 09:37:56 -0300 | [diff] [blame] | 825 | if (likely(ops->vidioc_try_fmt_vid_overlay)) |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 826 | ret = ops->vidioc_try_fmt_vid_overlay(file, |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 827 | fh, f); |
| 828 | break; |
| 829 | case V4L2_BUF_TYPE_VIDEO_OUTPUT: |
Trent Piepho | 7ecc0cf | 2009-04-30 21:03:34 -0300 | [diff] [blame] | 830 | CLEAR_AFTER_FIELD(f, fmt.pix); |
Tomasz Stanislawski | 1d0c86c | 2011-07-01 06:25:46 -0300 | [diff] [blame] | 831 | if (ops->vidioc_try_fmt_vid_out) |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 832 | ret = ops->vidioc_try_fmt_vid_out(file, fh, f); |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 833 | if (!ret) |
| 834 | v4l_print_pix_fmt(vfd, &f->fmt.pix); |
| 835 | break; |
Pawel Osciak | d14e6d7 | 2010-12-23 04:15:27 -0300 | [diff] [blame] | 836 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE: |
| 837 | CLEAR_AFTER_FIELD(f, fmt.pix_mp); |
Tomasz Stanislawski | 1d0c86c | 2011-07-01 06:25:46 -0300 | [diff] [blame] | 838 | if (ops->vidioc_try_fmt_vid_out_mplane) |
Pawel Osciak | d14e6d7 | 2010-12-23 04:15:27 -0300 | [diff] [blame] | 839 | ret = ops->vidioc_try_fmt_vid_out_mplane(file, |
| 840 | fh, f); |
Pawel Osciak | d14e6d7 | 2010-12-23 04:15:27 -0300 | [diff] [blame] | 841 | if (!ret) |
| 842 | v4l_print_pix_fmt_mplane(vfd, &f->fmt.pix_mp); |
| 843 | break; |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 844 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY: |
Trent Piepho | 7ecc0cf | 2009-04-30 21:03:34 -0300 | [diff] [blame] | 845 | CLEAR_AFTER_FIELD(f, fmt.win); |
Mauro Carvalho Chehab | a5f2db5 | 2011-07-31 09:37:56 -0300 | [diff] [blame] | 846 | if (likely(ops->vidioc_try_fmt_vid_out_overlay)) |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 847 | ret = ops->vidioc_try_fmt_vid_out_overlay(file, |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 848 | fh, f); |
| 849 | break; |
| 850 | case V4L2_BUF_TYPE_VBI_CAPTURE: |
Trent Piepho | 7ecc0cf | 2009-04-30 21:03:34 -0300 | [diff] [blame] | 851 | CLEAR_AFTER_FIELD(f, fmt.vbi); |
Mauro Carvalho Chehab | a5f2db5 | 2011-07-31 09:37:56 -0300 | [diff] [blame] | 852 | if (likely(ops->vidioc_try_fmt_vbi_cap)) |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 853 | ret = ops->vidioc_try_fmt_vbi_cap(file, fh, f); |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 854 | break; |
| 855 | case V4L2_BUF_TYPE_VBI_OUTPUT: |
Trent Piepho | 7ecc0cf | 2009-04-30 21:03:34 -0300 | [diff] [blame] | 856 | CLEAR_AFTER_FIELD(f, fmt.vbi); |
Mauro Carvalho Chehab | a5f2db5 | 2011-07-31 09:37:56 -0300 | [diff] [blame] | 857 | if (likely(ops->vidioc_try_fmt_vbi_out)) |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 858 | ret = ops->vidioc_try_fmt_vbi_out(file, fh, f); |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 859 | break; |
| 860 | case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE: |
Trent Piepho | 7ecc0cf | 2009-04-30 21:03:34 -0300 | [diff] [blame] | 861 | CLEAR_AFTER_FIELD(f, fmt.sliced); |
Mauro Carvalho Chehab | a5f2db5 | 2011-07-31 09:37:56 -0300 | [diff] [blame] | 862 | if (likely(ops->vidioc_try_fmt_sliced_vbi_cap)) |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 863 | ret = ops->vidioc_try_fmt_sliced_vbi_cap(file, |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 864 | fh, f); |
| 865 | break; |
| 866 | case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT: |
Trent Piepho | 7ecc0cf | 2009-04-30 21:03:34 -0300 | [diff] [blame] | 867 | CLEAR_AFTER_FIELD(f, fmt.sliced); |
Mauro Carvalho Chehab | a5f2db5 | 2011-07-31 09:37:56 -0300 | [diff] [blame] | 868 | if (likely(ops->vidioc_try_fmt_sliced_vbi_out)) |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 869 | ret = ops->vidioc_try_fmt_sliced_vbi_out(file, |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 870 | fh, f); |
| 871 | break; |
| 872 | case V4L2_BUF_TYPE_PRIVATE: |
Trent Piepho | 7ecc0cf | 2009-04-30 21:03:34 -0300 | [diff] [blame] | 873 | /* CLEAR_AFTER_FIELD(f, fmt.raw_data); <- does nothing */ |
Mauro Carvalho Chehab | a5f2db5 | 2011-07-31 09:37:56 -0300 | [diff] [blame] | 874 | if (likely(ops->vidioc_try_fmt_type_private)) |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 875 | ret = ops->vidioc_try_fmt_type_private(file, |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 876 | fh, f); |
| 877 | break; |
| 878 | } |
Hans Verkuil | 93d5a30 | 2011-08-09 09:32:06 -0300 | [diff] [blame] | 879 | if (unlikely(ret == -ENOTTY && have_fmt_ops(try))) |
| 880 | ret = -EINVAL; |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 881 | break; |
| 882 | } |
| 883 | /* FIXME: Those buf reqs could be handled here, |
| 884 | with some changes on videobuf to allow its header to be included at |
| 885 | videodev2.h or being merged at videodev2. |
| 886 | */ |
| 887 | case VIDIOC_REQBUFS: |
| 888 | { |
| 889 | struct v4l2_requestbuffers *p = arg; |
| 890 | |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 891 | if (!ops->vidioc_reqbufs) |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 892 | break; |
Hans Verkuil | 93d5a30 | 2011-08-09 09:32:06 -0300 | [diff] [blame] | 893 | if (ret_prio) { |
| 894 | ret = ret_prio; |
| 895 | break; |
| 896 | } |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 897 | ret = check_fmt(ops, p->type); |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 898 | if (ret) |
| 899 | break; |
| 900 | |
Trent Piepho | 7ecc0cf | 2009-04-30 21:03:34 -0300 | [diff] [blame] | 901 | if (p->type < V4L2_BUF_TYPE_PRIVATE) |
| 902 | CLEAR_AFTER_FIELD(p, memory); |
| 903 | |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 904 | ret = ops->vidioc_reqbufs(file, fh, p); |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 905 | dbgarg(cmd, "count=%d, type=%s, memory=%s\n", |
| 906 | p->count, |
| 907 | prt_names(p->type, v4l2_type_names), |
| 908 | prt_names(p->memory, v4l2_memory_names)); |
| 909 | break; |
| 910 | } |
| 911 | case VIDIOC_QUERYBUF: |
| 912 | { |
| 913 | struct v4l2_buffer *p = arg; |
| 914 | |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 915 | if (!ops->vidioc_querybuf) |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 916 | break; |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 917 | ret = check_fmt(ops, p->type); |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 918 | if (ret) |
| 919 | break; |
| 920 | |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 921 | ret = ops->vidioc_querybuf(file, fh, p); |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 922 | if (!ret) |
| 923 | dbgbuf(cmd, vfd, p); |
| 924 | break; |
| 925 | } |
| 926 | case VIDIOC_QBUF: |
| 927 | { |
| 928 | struct v4l2_buffer *p = arg; |
| 929 | |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 930 | if (!ops->vidioc_qbuf) |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 931 | break; |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 932 | ret = check_fmt(ops, p->type); |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 933 | if (ret) |
| 934 | break; |
| 935 | |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 936 | ret = ops->vidioc_qbuf(file, fh, p); |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 937 | if (!ret) |
| 938 | dbgbuf(cmd, vfd, p); |
| 939 | break; |
| 940 | } |
| 941 | case VIDIOC_DQBUF: |
| 942 | { |
| 943 | struct v4l2_buffer *p = arg; |
| 944 | |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 945 | if (!ops->vidioc_dqbuf) |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 946 | break; |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 947 | ret = check_fmt(ops, p->type); |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 948 | if (ret) |
| 949 | break; |
| 950 | |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 951 | ret = ops->vidioc_dqbuf(file, fh, p); |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 952 | if (!ret) |
| 953 | dbgbuf(cmd, vfd, p); |
| 954 | break; |
| 955 | } |
| 956 | case VIDIOC_OVERLAY: |
| 957 | { |
| 958 | int *i = arg; |
| 959 | |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 960 | if (!ops->vidioc_overlay) |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 961 | break; |
Hans Verkuil | 93d5a30 | 2011-08-09 09:32:06 -0300 | [diff] [blame] | 962 | if (ret_prio) { |
| 963 | ret = ret_prio; |
| 964 | break; |
| 965 | } |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 966 | dbgarg(cmd, "value=%d\n", *i); |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 967 | ret = ops->vidioc_overlay(file, fh, *i); |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 968 | break; |
| 969 | } |
| 970 | case VIDIOC_G_FBUF: |
| 971 | { |
| 972 | struct v4l2_framebuffer *p = arg; |
| 973 | |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 974 | if (!ops->vidioc_g_fbuf) |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 975 | break; |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 976 | ret = ops->vidioc_g_fbuf(file, fh, arg); |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 977 | if (!ret) { |
| 978 | dbgarg(cmd, "capability=0x%x, flags=%d, base=0x%08lx\n", |
| 979 | p->capability, p->flags, |
| 980 | (unsigned long)p->base); |
| 981 | v4l_print_pix_fmt(vfd, &p->fmt); |
| 982 | } |
| 983 | break; |
| 984 | } |
| 985 | case VIDIOC_S_FBUF: |
| 986 | { |
| 987 | struct v4l2_framebuffer *p = arg; |
| 988 | |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 989 | if (!ops->vidioc_s_fbuf) |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 990 | break; |
Hans Verkuil | 93d5a30 | 2011-08-09 09:32:06 -0300 | [diff] [blame] | 991 | if (ret_prio) { |
| 992 | ret = ret_prio; |
| 993 | break; |
| 994 | } |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 995 | dbgarg(cmd, "capability=0x%x, flags=%d, base=0x%08lx\n", |
| 996 | p->capability, p->flags, (unsigned long)p->base); |
| 997 | v4l_print_pix_fmt(vfd, &p->fmt); |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 998 | ret = ops->vidioc_s_fbuf(file, fh, arg); |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 999 | break; |
| 1000 | } |
| 1001 | case VIDIOC_STREAMON: |
| 1002 | { |
| 1003 | enum v4l2_buf_type i = *(int *)arg; |
| 1004 | |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 1005 | if (!ops->vidioc_streamon) |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1006 | break; |
Hans Verkuil | 93d5a30 | 2011-08-09 09:32:06 -0300 | [diff] [blame] | 1007 | if (ret_prio) { |
| 1008 | ret = ret_prio; |
| 1009 | break; |
| 1010 | } |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1011 | dbgarg(cmd, "type=%s\n", prt_names(i, v4l2_type_names)); |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 1012 | ret = ops->vidioc_streamon(file, fh, i); |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1013 | break; |
| 1014 | } |
| 1015 | case VIDIOC_STREAMOFF: |
| 1016 | { |
| 1017 | enum v4l2_buf_type i = *(int *)arg; |
| 1018 | |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 1019 | if (!ops->vidioc_streamoff) |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1020 | break; |
Hans Verkuil | 93d5a30 | 2011-08-09 09:32:06 -0300 | [diff] [blame] | 1021 | if (ret_prio) { |
| 1022 | ret = ret_prio; |
| 1023 | break; |
| 1024 | } |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1025 | dbgarg(cmd, "type=%s\n", prt_names(i, v4l2_type_names)); |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 1026 | ret = ops->vidioc_streamoff(file, fh, i); |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1027 | break; |
| 1028 | } |
| 1029 | /* ---------- tv norms ---------- */ |
| 1030 | case VIDIOC_ENUMSTD: |
| 1031 | { |
| 1032 | struct v4l2_standard *p = arg; |
| 1033 | v4l2_std_id id = vfd->tvnorms, curr_id = 0; |
| 1034 | unsigned int index = p->index, i, j = 0; |
| 1035 | const char *descr = ""; |
| 1036 | |
Hans Verkuil | 93d5a30 | 2011-08-09 09:32:06 -0300 | [diff] [blame] | 1037 | if (id == 0) |
| 1038 | break; |
| 1039 | ret = -EINVAL; |
| 1040 | |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1041 | /* Return norm array in a canonical way */ |
| 1042 | for (i = 0; i <= index && id; i++) { |
| 1043 | /* last std value in the standards array is 0, so this |
| 1044 | while always ends there since (id & 0) == 0. */ |
| 1045 | while ((id & standards[j].std) != standards[j].std) |
| 1046 | j++; |
| 1047 | curr_id = standards[j].std; |
| 1048 | descr = standards[j].descr; |
| 1049 | j++; |
| 1050 | if (curr_id == 0) |
| 1051 | break; |
| 1052 | if (curr_id != V4L2_STD_PAL && |
| 1053 | curr_id != V4L2_STD_SECAM && |
| 1054 | curr_id != V4L2_STD_NTSC) |
| 1055 | id &= ~curr_id; |
| 1056 | } |
| 1057 | if (i <= index) |
Hans Verkuil | 3f5e182 | 2010-04-06 08:14:11 -0300 | [diff] [blame] | 1058 | break; |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1059 | |
| 1060 | v4l2_video_std_construct(p, curr_id, descr); |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1061 | |
| 1062 | dbgarg(cmd, "index=%d, id=0x%Lx, name=%s, fps=%d/%d, " |
| 1063 | "framelines=%d\n", p->index, |
| 1064 | (unsigned long long)p->id, p->name, |
| 1065 | p->frameperiod.numerator, |
| 1066 | p->frameperiod.denominator, |
| 1067 | p->framelines); |
| 1068 | |
| 1069 | ret = 0; |
| 1070 | break; |
| 1071 | } |
| 1072 | case VIDIOC_G_STD: |
| 1073 | { |
| 1074 | v4l2_std_id *id = arg; |
| 1075 | |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1076 | /* Calls the specific handler */ |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 1077 | if (ops->vidioc_g_std) |
| 1078 | ret = ops->vidioc_g_std(file, fh, id); |
Mauro Carvalho Chehab | a5f2db5 | 2011-07-31 09:37:56 -0300 | [diff] [blame] | 1079 | else if (vfd->current_norm) { |
| 1080 | ret = 0; |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1081 | *id = vfd->current_norm; |
Mauro Carvalho Chehab | a5f2db5 | 2011-07-31 09:37:56 -0300 | [diff] [blame] | 1082 | } |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1083 | |
Mauro Carvalho Chehab | a5f2db5 | 2011-07-31 09:37:56 -0300 | [diff] [blame] | 1084 | if (likely(!ret)) |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1085 | dbgarg(cmd, "std=0x%08Lx\n", (long long unsigned)*id); |
| 1086 | break; |
| 1087 | } |
| 1088 | case VIDIOC_S_STD: |
| 1089 | { |
| 1090 | v4l2_std_id *id = arg, norm; |
| 1091 | |
| 1092 | dbgarg(cmd, "std=%08Lx\n", (long long unsigned)*id); |
| 1093 | |
Hans Verkuil | 93d5a30 | 2011-08-09 09:32:06 -0300 | [diff] [blame] | 1094 | if (!ops->vidioc_s_std) |
| 1095 | break; |
| 1096 | |
| 1097 | if (ret_prio) { |
| 1098 | ret = ret_prio; |
| 1099 | break; |
| 1100 | } |
| 1101 | ret = -EINVAL; |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1102 | norm = (*id) & vfd->tvnorms; |
| 1103 | if (vfd->tvnorms && !norm) /* Check if std is supported */ |
| 1104 | break; |
| 1105 | |
| 1106 | /* Calls the specific handler */ |
Hans Verkuil | 93d5a30 | 2011-08-09 09:32:06 -0300 | [diff] [blame] | 1107 | ret = ops->vidioc_s_std(file, fh, &norm); |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1108 | |
| 1109 | /* Updates standard information */ |
| 1110 | if (ret >= 0) |
| 1111 | vfd->current_norm = norm; |
| 1112 | break; |
| 1113 | } |
| 1114 | case VIDIOC_QUERYSTD: |
| 1115 | { |
| 1116 | v4l2_std_id *p = arg; |
| 1117 | |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 1118 | if (!ops->vidioc_querystd) |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1119 | break; |
Mauro Carvalho Chehab | 8715e6c | 2011-10-04 09:32:23 -0300 | [diff] [blame] | 1120 | /* |
| 1121 | * If nothing detected, it should return all supported |
| 1122 | * Drivers just need to mask the std argument, in order |
| 1123 | * to remove the standards that don't apply from the mask. |
| 1124 | * This means that tuners, audio and video decoders can join |
| 1125 | * their efforts to improve the standards detection |
| 1126 | */ |
| 1127 | *p = vfd->tvnorms; |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 1128 | ret = ops->vidioc_querystd(file, fh, arg); |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1129 | if (!ret) |
| 1130 | dbgarg(cmd, "detected std=%08Lx\n", |
| 1131 | (unsigned long long)*p); |
| 1132 | break; |
| 1133 | } |
| 1134 | /* ------ input switching ---------- */ |
| 1135 | /* FIXME: Inputs can be handled inside videodev2 */ |
| 1136 | case VIDIOC_ENUMINPUT: |
| 1137 | { |
| 1138 | struct v4l2_input *p = arg; |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1139 | |
Muralidharan Karicheri | b6456c0 | 2009-11-19 12:00:31 -0300 | [diff] [blame] | 1140 | /* |
| 1141 | * We set the flags for CAP_PRESETS, CAP_CUSTOM_TIMINGS & |
| 1142 | * CAP_STD here based on ioctl handler provided by the |
| 1143 | * driver. If the driver doesn't support these |
| 1144 | * for a specific input, it must override these flags. |
| 1145 | */ |
| 1146 | if (ops->vidioc_s_std) |
| 1147 | p->capabilities |= V4L2_IN_CAP_STD; |
| 1148 | if (ops->vidioc_s_dv_preset) |
| 1149 | p->capabilities |= V4L2_IN_CAP_PRESETS; |
| 1150 | if (ops->vidioc_s_dv_timings) |
| 1151 | p->capabilities |= V4L2_IN_CAP_CUSTOM_TIMINGS; |
| 1152 | |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 1153 | if (!ops->vidioc_enum_input) |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1154 | break; |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1155 | |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 1156 | ret = ops->vidioc_enum_input(file, fh, p); |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1157 | if (!ret) |
| 1158 | dbgarg(cmd, "index=%d, name=%s, type=%d, " |
| 1159 | "audioset=%d, " |
| 1160 | "tuner=%d, std=%08Lx, status=%d\n", |
| 1161 | p->index, p->name, p->type, p->audioset, |
| 1162 | p->tuner, |
| 1163 | (unsigned long long)p->std, |
| 1164 | p->status); |
| 1165 | break; |
| 1166 | } |
| 1167 | case VIDIOC_G_INPUT: |
| 1168 | { |
| 1169 | unsigned int *i = arg; |
| 1170 | |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 1171 | if (!ops->vidioc_g_input) |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1172 | break; |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 1173 | ret = ops->vidioc_g_input(file, fh, i); |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1174 | if (!ret) |
| 1175 | dbgarg(cmd, "value=%d\n", *i); |
| 1176 | break; |
| 1177 | } |
| 1178 | case VIDIOC_S_INPUT: |
| 1179 | { |
| 1180 | unsigned int *i = arg; |
| 1181 | |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 1182 | if (!ops->vidioc_s_input) |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1183 | break; |
Hans Verkuil | 93d5a30 | 2011-08-09 09:32:06 -0300 | [diff] [blame] | 1184 | if (ret_prio) { |
| 1185 | ret = ret_prio; |
| 1186 | break; |
| 1187 | } |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1188 | dbgarg(cmd, "value=%d\n", *i); |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 1189 | ret = ops->vidioc_s_input(file, fh, *i); |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1190 | break; |
| 1191 | } |
| 1192 | |
| 1193 | /* ------ output switching ---------- */ |
| 1194 | case VIDIOC_ENUMOUTPUT: |
| 1195 | { |
| 1196 | struct v4l2_output *p = arg; |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1197 | |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 1198 | if (!ops->vidioc_enum_output) |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1199 | break; |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1200 | |
Muralidharan Karicheri | b6456c0 | 2009-11-19 12:00:31 -0300 | [diff] [blame] | 1201 | /* |
| 1202 | * We set the flags for CAP_PRESETS, CAP_CUSTOM_TIMINGS & |
| 1203 | * CAP_STD here based on ioctl handler provided by the |
| 1204 | * driver. If the driver doesn't support these |
| 1205 | * for a specific output, it must override these flags. |
| 1206 | */ |
| 1207 | if (ops->vidioc_s_std) |
| 1208 | p->capabilities |= V4L2_OUT_CAP_STD; |
| 1209 | if (ops->vidioc_s_dv_preset) |
| 1210 | p->capabilities |= V4L2_OUT_CAP_PRESETS; |
| 1211 | if (ops->vidioc_s_dv_timings) |
| 1212 | p->capabilities |= V4L2_OUT_CAP_CUSTOM_TIMINGS; |
| 1213 | |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 1214 | ret = ops->vidioc_enum_output(file, fh, p); |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1215 | if (!ret) |
| 1216 | dbgarg(cmd, "index=%d, name=%s, type=%d, " |
| 1217 | "audioset=0x%x, " |
| 1218 | "modulator=%d, std=0x%08Lx\n", |
| 1219 | p->index, p->name, p->type, p->audioset, |
| 1220 | p->modulator, (unsigned long long)p->std); |
| 1221 | break; |
| 1222 | } |
| 1223 | case VIDIOC_G_OUTPUT: |
| 1224 | { |
| 1225 | unsigned int *i = arg; |
| 1226 | |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 1227 | if (!ops->vidioc_g_output) |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1228 | break; |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 1229 | ret = ops->vidioc_g_output(file, fh, i); |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1230 | if (!ret) |
| 1231 | dbgarg(cmd, "value=%d\n", *i); |
| 1232 | break; |
| 1233 | } |
| 1234 | case VIDIOC_S_OUTPUT: |
| 1235 | { |
| 1236 | unsigned int *i = arg; |
| 1237 | |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 1238 | if (!ops->vidioc_s_output) |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1239 | break; |
Hans Verkuil | 93d5a30 | 2011-08-09 09:32:06 -0300 | [diff] [blame] | 1240 | if (ret_prio) { |
| 1241 | ret = ret_prio; |
| 1242 | break; |
| 1243 | } |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1244 | dbgarg(cmd, "value=%d\n", *i); |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 1245 | ret = ops->vidioc_s_output(file, fh, *i); |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1246 | break; |
| 1247 | } |
| 1248 | |
| 1249 | /* --- controls ---------------------------------------------- */ |
| 1250 | case VIDIOC_QUERYCTRL: |
| 1251 | { |
| 1252 | struct v4l2_queryctrl *p = arg; |
| 1253 | |
Hans Verkuil | 2d28b68 | 2011-03-12 08:54:43 -0300 | [diff] [blame] | 1254 | if (vfh && vfh->ctrl_handler) |
| 1255 | ret = v4l2_queryctrl(vfh->ctrl_handler, p); |
| 1256 | else if (vfd->ctrl_handler) |
Hans Verkuil | 11bbc1c | 2010-05-16 09:24:06 -0300 | [diff] [blame] | 1257 | ret = v4l2_queryctrl(vfd->ctrl_handler, p); |
| 1258 | else if (ops->vidioc_queryctrl) |
| 1259 | ret = ops->vidioc_queryctrl(file, fh, p); |
| 1260 | else |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1261 | break; |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1262 | if (!ret) |
| 1263 | dbgarg(cmd, "id=0x%x, type=%d, name=%s, min/max=%d/%d, " |
| 1264 | "step=%d, default=%d, flags=0x%08x\n", |
| 1265 | p->id, p->type, p->name, |
| 1266 | p->minimum, p->maximum, |
| 1267 | p->step, p->default_value, p->flags); |
| 1268 | else |
| 1269 | dbgarg(cmd, "id=0x%x\n", p->id); |
| 1270 | break; |
| 1271 | } |
| 1272 | case VIDIOC_G_CTRL: |
| 1273 | { |
| 1274 | struct v4l2_control *p = arg; |
| 1275 | |
Hans Verkuil | 2d28b68 | 2011-03-12 08:54:43 -0300 | [diff] [blame] | 1276 | if (vfh && vfh->ctrl_handler) |
| 1277 | ret = v4l2_g_ctrl(vfh->ctrl_handler, p); |
| 1278 | else if (vfd->ctrl_handler) |
Hans Verkuil | 11bbc1c | 2010-05-16 09:24:06 -0300 | [diff] [blame] | 1279 | ret = v4l2_g_ctrl(vfd->ctrl_handler, p); |
| 1280 | else if (ops->vidioc_g_ctrl) |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 1281 | ret = ops->vidioc_g_ctrl(file, fh, p); |
| 1282 | else if (ops->vidioc_g_ext_ctrls) { |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1283 | struct v4l2_ext_controls ctrls; |
| 1284 | struct v4l2_ext_control ctrl; |
| 1285 | |
| 1286 | ctrls.ctrl_class = V4L2_CTRL_ID2CLASS(p->id); |
| 1287 | ctrls.count = 1; |
| 1288 | ctrls.controls = &ctrl; |
| 1289 | ctrl.id = p->id; |
| 1290 | ctrl.value = p->value; |
| 1291 | if (check_ext_ctrls(&ctrls, 1)) { |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 1292 | ret = ops->vidioc_g_ext_ctrls(file, fh, &ctrls); |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1293 | if (ret == 0) |
| 1294 | p->value = ctrl.value; |
| 1295 | } |
| 1296 | } else |
| 1297 | break; |
| 1298 | if (!ret) |
| 1299 | dbgarg(cmd, "id=0x%x, value=%d\n", p->id, p->value); |
| 1300 | else |
| 1301 | dbgarg(cmd, "id=0x%x\n", p->id); |
| 1302 | break; |
| 1303 | } |
| 1304 | case VIDIOC_S_CTRL: |
| 1305 | { |
| 1306 | struct v4l2_control *p = arg; |
| 1307 | struct v4l2_ext_controls ctrls; |
| 1308 | struct v4l2_ext_control ctrl; |
| 1309 | |
Hans Verkuil | 2d28b68 | 2011-03-12 08:54:43 -0300 | [diff] [blame] | 1310 | if (!(vfh && vfh->ctrl_handler) && !vfd->ctrl_handler && |
Hans Verkuil | 11bbc1c | 2010-05-16 09:24:06 -0300 | [diff] [blame] | 1311 | !ops->vidioc_s_ctrl && !ops->vidioc_s_ext_ctrls) |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1312 | break; |
Hans Verkuil | 93d5a30 | 2011-08-09 09:32:06 -0300 | [diff] [blame] | 1313 | if (ret_prio) { |
| 1314 | ret = ret_prio; |
| 1315 | break; |
| 1316 | } |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1317 | |
| 1318 | dbgarg(cmd, "id=0x%x, value=%d\n", p->id, p->value); |
| 1319 | |
Hans Verkuil | 2d28b68 | 2011-03-12 08:54:43 -0300 | [diff] [blame] | 1320 | if (vfh && vfh->ctrl_handler) { |
Hans Verkuil | ab892ba | 2011-06-07 06:47:18 -0300 | [diff] [blame] | 1321 | ret = v4l2_s_ctrl(vfh, vfh->ctrl_handler, p); |
Hans Verkuil | 2d28b68 | 2011-03-12 08:54:43 -0300 | [diff] [blame] | 1322 | break; |
| 1323 | } |
Hans Verkuil | 11bbc1c | 2010-05-16 09:24:06 -0300 | [diff] [blame] | 1324 | if (vfd->ctrl_handler) { |
Hans Verkuil | ab892ba | 2011-06-07 06:47:18 -0300 | [diff] [blame] | 1325 | ret = v4l2_s_ctrl(NULL, vfd->ctrl_handler, p); |
Hans Verkuil | 11bbc1c | 2010-05-16 09:24:06 -0300 | [diff] [blame] | 1326 | break; |
| 1327 | } |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 1328 | if (ops->vidioc_s_ctrl) { |
| 1329 | ret = ops->vidioc_s_ctrl(file, fh, p); |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1330 | break; |
| 1331 | } |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 1332 | if (!ops->vidioc_s_ext_ctrls) |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1333 | break; |
| 1334 | |
| 1335 | ctrls.ctrl_class = V4L2_CTRL_ID2CLASS(p->id); |
| 1336 | ctrls.count = 1; |
| 1337 | ctrls.controls = &ctrl; |
| 1338 | ctrl.id = p->id; |
| 1339 | ctrl.value = p->value; |
| 1340 | if (check_ext_ctrls(&ctrls, 1)) |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 1341 | ret = ops->vidioc_s_ext_ctrls(file, fh, &ctrls); |
Hans Verkuil | 93d5a30 | 2011-08-09 09:32:06 -0300 | [diff] [blame] | 1342 | else |
| 1343 | ret = -EINVAL; |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1344 | break; |
| 1345 | } |
| 1346 | case VIDIOC_G_EXT_CTRLS: |
| 1347 | { |
| 1348 | struct v4l2_ext_controls *p = arg; |
| 1349 | |
| 1350 | p->error_idx = p->count; |
Hans Verkuil | 2d28b68 | 2011-03-12 08:54:43 -0300 | [diff] [blame] | 1351 | if (vfh && vfh->ctrl_handler) |
| 1352 | ret = v4l2_g_ext_ctrls(vfh->ctrl_handler, p); |
| 1353 | else if (vfd->ctrl_handler) |
Hans Verkuil | 11bbc1c | 2010-05-16 09:24:06 -0300 | [diff] [blame] | 1354 | ret = v4l2_g_ext_ctrls(vfd->ctrl_handler, p); |
Hans Verkuil | 93d5a30 | 2011-08-09 09:32:06 -0300 | [diff] [blame] | 1355 | else if (ops->vidioc_g_ext_ctrls) |
| 1356 | ret = check_ext_ctrls(p, 0) ? |
| 1357 | ops->vidioc_g_ext_ctrls(file, fh, p) : |
| 1358 | -EINVAL; |
Hans Verkuil | 11bbc1c | 2010-05-16 09:24:06 -0300 | [diff] [blame] | 1359 | else |
| 1360 | break; |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1361 | v4l_print_ext_ctrls(cmd, vfd, p, !ret); |
| 1362 | break; |
| 1363 | } |
| 1364 | case VIDIOC_S_EXT_CTRLS: |
| 1365 | { |
| 1366 | struct v4l2_ext_controls *p = arg; |
| 1367 | |
| 1368 | p->error_idx = p->count; |
Hans Verkuil | 2d28b68 | 2011-03-12 08:54:43 -0300 | [diff] [blame] | 1369 | if (!(vfh && vfh->ctrl_handler) && !vfd->ctrl_handler && |
| 1370 | !ops->vidioc_s_ext_ctrls) |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1371 | break; |
Hans Verkuil | 93d5a30 | 2011-08-09 09:32:06 -0300 | [diff] [blame] | 1372 | if (ret_prio) { |
| 1373 | ret = ret_prio; |
| 1374 | break; |
| 1375 | } |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1376 | v4l_print_ext_ctrls(cmd, vfd, p, 1); |
Hans Verkuil | 2d28b68 | 2011-03-12 08:54:43 -0300 | [diff] [blame] | 1377 | if (vfh && vfh->ctrl_handler) |
Hans Verkuil | ab892ba | 2011-06-07 06:47:18 -0300 | [diff] [blame] | 1378 | ret = v4l2_s_ext_ctrls(vfh, vfh->ctrl_handler, p); |
Hans Verkuil | 2d28b68 | 2011-03-12 08:54:43 -0300 | [diff] [blame] | 1379 | else if (vfd->ctrl_handler) |
Hans Verkuil | ab892ba | 2011-06-07 06:47:18 -0300 | [diff] [blame] | 1380 | ret = v4l2_s_ext_ctrls(NULL, vfd->ctrl_handler, p); |
Hans Verkuil | 11bbc1c | 2010-05-16 09:24:06 -0300 | [diff] [blame] | 1381 | else if (check_ext_ctrls(p, 0)) |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 1382 | ret = ops->vidioc_s_ext_ctrls(file, fh, p); |
Hans Verkuil | 93d5a30 | 2011-08-09 09:32:06 -0300 | [diff] [blame] | 1383 | else |
| 1384 | ret = -EINVAL; |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1385 | break; |
| 1386 | } |
| 1387 | case VIDIOC_TRY_EXT_CTRLS: |
| 1388 | { |
| 1389 | struct v4l2_ext_controls *p = arg; |
| 1390 | |
| 1391 | p->error_idx = p->count; |
Hans Verkuil | 2d28b68 | 2011-03-12 08:54:43 -0300 | [diff] [blame] | 1392 | if (!(vfh && vfh->ctrl_handler) && !vfd->ctrl_handler && |
| 1393 | !ops->vidioc_try_ext_ctrls) |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1394 | break; |
| 1395 | v4l_print_ext_ctrls(cmd, vfd, p, 1); |
Hans Verkuil | 2d28b68 | 2011-03-12 08:54:43 -0300 | [diff] [blame] | 1396 | if (vfh && vfh->ctrl_handler) |
| 1397 | ret = v4l2_try_ext_ctrls(vfh->ctrl_handler, p); |
| 1398 | else if (vfd->ctrl_handler) |
Hans Verkuil | 11bbc1c | 2010-05-16 09:24:06 -0300 | [diff] [blame] | 1399 | ret = v4l2_try_ext_ctrls(vfd->ctrl_handler, p); |
| 1400 | else if (check_ext_ctrls(p, 0)) |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 1401 | ret = ops->vidioc_try_ext_ctrls(file, fh, p); |
Hans Verkuil | 93d5a30 | 2011-08-09 09:32:06 -0300 | [diff] [blame] | 1402 | else |
| 1403 | ret = -EINVAL; |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1404 | break; |
| 1405 | } |
| 1406 | case VIDIOC_QUERYMENU: |
| 1407 | { |
| 1408 | struct v4l2_querymenu *p = arg; |
| 1409 | |
Hans Verkuil | 2d28b68 | 2011-03-12 08:54:43 -0300 | [diff] [blame] | 1410 | if (vfh && vfh->ctrl_handler) |
| 1411 | ret = v4l2_querymenu(vfh->ctrl_handler, p); |
| 1412 | else if (vfd->ctrl_handler) |
Hans Verkuil | 11bbc1c | 2010-05-16 09:24:06 -0300 | [diff] [blame] | 1413 | ret = v4l2_querymenu(vfd->ctrl_handler, p); |
| 1414 | else if (ops->vidioc_querymenu) |
| 1415 | ret = ops->vidioc_querymenu(file, fh, p); |
| 1416 | else |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1417 | break; |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1418 | if (!ret) |
| 1419 | dbgarg(cmd, "id=0x%x, index=%d, name=%s\n", |
| 1420 | p->id, p->index, p->name); |
| 1421 | else |
| 1422 | dbgarg(cmd, "id=0x%x, index=%d\n", |
| 1423 | p->id, p->index); |
| 1424 | break; |
| 1425 | } |
| 1426 | /* --- audio ---------------------------------------------- */ |
| 1427 | case VIDIOC_ENUMAUDIO: |
| 1428 | { |
| 1429 | struct v4l2_audio *p = arg; |
| 1430 | |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 1431 | if (!ops->vidioc_enumaudio) |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1432 | break; |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 1433 | ret = ops->vidioc_enumaudio(file, fh, p); |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1434 | if (!ret) |
| 1435 | dbgarg(cmd, "index=%d, name=%s, capability=0x%x, " |
| 1436 | "mode=0x%x\n", p->index, p->name, |
| 1437 | p->capability, p->mode); |
| 1438 | else |
| 1439 | dbgarg(cmd, "index=%d\n", p->index); |
| 1440 | break; |
| 1441 | } |
| 1442 | case VIDIOC_G_AUDIO: |
| 1443 | { |
| 1444 | struct v4l2_audio *p = arg; |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1445 | |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 1446 | if (!ops->vidioc_g_audio) |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1447 | break; |
| 1448 | |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 1449 | ret = ops->vidioc_g_audio(file, fh, p); |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1450 | if (!ret) |
| 1451 | dbgarg(cmd, "index=%d, name=%s, capability=0x%x, " |
| 1452 | "mode=0x%x\n", p->index, |
| 1453 | p->name, p->capability, p->mode); |
| 1454 | else |
| 1455 | dbgarg(cmd, "index=%d\n", p->index); |
| 1456 | break; |
| 1457 | } |
| 1458 | case VIDIOC_S_AUDIO: |
| 1459 | { |
| 1460 | struct v4l2_audio *p = arg; |
| 1461 | |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 1462 | if (!ops->vidioc_s_audio) |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1463 | break; |
Hans Verkuil | 93d5a30 | 2011-08-09 09:32:06 -0300 | [diff] [blame] | 1464 | if (ret_prio) { |
| 1465 | ret = ret_prio; |
| 1466 | break; |
| 1467 | } |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1468 | dbgarg(cmd, "index=%d, name=%s, capability=0x%x, " |
| 1469 | "mode=0x%x\n", p->index, p->name, |
| 1470 | p->capability, p->mode); |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 1471 | ret = ops->vidioc_s_audio(file, fh, p); |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1472 | break; |
| 1473 | } |
| 1474 | case VIDIOC_ENUMAUDOUT: |
| 1475 | { |
| 1476 | struct v4l2_audioout *p = arg; |
| 1477 | |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 1478 | if (!ops->vidioc_enumaudout) |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1479 | break; |
| 1480 | dbgarg(cmd, "Enum for index=%d\n", p->index); |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 1481 | ret = ops->vidioc_enumaudout(file, fh, p); |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1482 | if (!ret) |
| 1483 | dbgarg2("index=%d, name=%s, capability=%d, " |
| 1484 | "mode=%d\n", p->index, p->name, |
| 1485 | p->capability, p->mode); |
| 1486 | break; |
| 1487 | } |
| 1488 | case VIDIOC_G_AUDOUT: |
| 1489 | { |
| 1490 | struct v4l2_audioout *p = arg; |
| 1491 | |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 1492 | if (!ops->vidioc_g_audout) |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1493 | break; |
Trent Piepho | 337f9d2 | 2009-03-04 01:21:02 -0300 | [diff] [blame] | 1494 | |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 1495 | ret = ops->vidioc_g_audout(file, fh, p); |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1496 | if (!ret) |
| 1497 | dbgarg2("index=%d, name=%s, capability=%d, " |
| 1498 | "mode=%d\n", p->index, p->name, |
| 1499 | p->capability, p->mode); |
| 1500 | break; |
| 1501 | } |
| 1502 | case VIDIOC_S_AUDOUT: |
| 1503 | { |
| 1504 | struct v4l2_audioout *p = arg; |
| 1505 | |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 1506 | if (!ops->vidioc_s_audout) |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1507 | break; |
Hans Verkuil | 93d5a30 | 2011-08-09 09:32:06 -0300 | [diff] [blame] | 1508 | if (ret_prio) { |
| 1509 | ret = ret_prio; |
| 1510 | break; |
| 1511 | } |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1512 | dbgarg(cmd, "index=%d, name=%s, capability=%d, " |
| 1513 | "mode=%d\n", p->index, p->name, |
| 1514 | p->capability, p->mode); |
| 1515 | |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 1516 | ret = ops->vidioc_s_audout(file, fh, p); |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1517 | break; |
| 1518 | } |
| 1519 | case VIDIOC_G_MODULATOR: |
| 1520 | { |
| 1521 | struct v4l2_modulator *p = arg; |
| 1522 | |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 1523 | if (!ops->vidioc_g_modulator) |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1524 | break; |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 1525 | ret = ops->vidioc_g_modulator(file, fh, p); |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1526 | if (!ret) |
| 1527 | dbgarg(cmd, "index=%d, name=%s, " |
| 1528 | "capability=%d, rangelow=%d," |
| 1529 | " rangehigh=%d, txsubchans=%d\n", |
| 1530 | p->index, p->name, p->capability, |
| 1531 | p->rangelow, p->rangehigh, |
| 1532 | p->txsubchans); |
| 1533 | break; |
| 1534 | } |
| 1535 | case VIDIOC_S_MODULATOR: |
| 1536 | { |
| 1537 | struct v4l2_modulator *p = arg; |
| 1538 | |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 1539 | if (!ops->vidioc_s_modulator) |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1540 | break; |
Hans Verkuil | 93d5a30 | 2011-08-09 09:32:06 -0300 | [diff] [blame] | 1541 | if (ret_prio) { |
| 1542 | ret = ret_prio; |
| 1543 | break; |
| 1544 | } |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1545 | dbgarg(cmd, "index=%d, name=%s, capability=%d, " |
| 1546 | "rangelow=%d, rangehigh=%d, txsubchans=%d\n", |
| 1547 | p->index, p->name, p->capability, p->rangelow, |
| 1548 | p->rangehigh, p->txsubchans); |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 1549 | ret = ops->vidioc_s_modulator(file, fh, p); |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1550 | break; |
| 1551 | } |
| 1552 | case VIDIOC_G_CROP: |
| 1553 | { |
| 1554 | struct v4l2_crop *p = arg; |
| 1555 | |
Tomasz Stanislawski | 992efeff | 2011-03-22 14:04:47 -0300 | [diff] [blame] | 1556 | if (!ops->vidioc_g_crop && !ops->vidioc_g_selection) |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1557 | break; |
Mauro Carvalho Chehab | a56a18c | 2008-11-11 21:15:03 -0300 | [diff] [blame] | 1558 | |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1559 | dbgarg(cmd, "type=%s\n", prt_names(p->type, v4l2_type_names)); |
Tomasz Stanislawski | 992efeff | 2011-03-22 14:04:47 -0300 | [diff] [blame] | 1560 | |
| 1561 | if (ops->vidioc_g_crop) { |
| 1562 | ret = ops->vidioc_g_crop(file, fh, p); |
| 1563 | } else { |
| 1564 | /* simulate capture crop using selection api */ |
| 1565 | struct v4l2_selection s = { |
| 1566 | .type = p->type, |
| 1567 | }; |
| 1568 | |
| 1569 | /* crop means compose for output devices */ |
| 1570 | if (V4L2_TYPE_IS_OUTPUT(p->type)) |
| 1571 | s.target = V4L2_SEL_TGT_COMPOSE_ACTIVE; |
| 1572 | else |
| 1573 | s.target = V4L2_SEL_TGT_CROP_ACTIVE; |
| 1574 | |
| 1575 | ret = ops->vidioc_g_selection(file, fh, &s); |
| 1576 | |
| 1577 | /* copying results to old structure on success */ |
| 1578 | if (!ret) |
| 1579 | p->c = s.r; |
| 1580 | } |
| 1581 | |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1582 | if (!ret) |
| 1583 | dbgrect(vfd, "", &p->c); |
| 1584 | break; |
| 1585 | } |
| 1586 | case VIDIOC_S_CROP: |
| 1587 | { |
| 1588 | struct v4l2_crop *p = arg; |
| 1589 | |
Tomasz Stanislawski | 992efeff | 2011-03-22 14:04:47 -0300 | [diff] [blame] | 1590 | if (!ops->vidioc_s_crop && !ops->vidioc_s_selection) |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1591 | break; |
Tomasz Stanislawski | 992efeff | 2011-03-22 14:04:47 -0300 | [diff] [blame] | 1592 | |
Hans Verkuil | 93d5a30 | 2011-08-09 09:32:06 -0300 | [diff] [blame] | 1593 | if (ret_prio) { |
| 1594 | ret = ret_prio; |
| 1595 | break; |
| 1596 | } |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1597 | dbgarg(cmd, "type=%s\n", prt_names(p->type, v4l2_type_names)); |
| 1598 | dbgrect(vfd, "", &p->c); |
Tomasz Stanislawski | 992efeff | 2011-03-22 14:04:47 -0300 | [diff] [blame] | 1599 | |
| 1600 | if (ops->vidioc_s_crop) { |
| 1601 | ret = ops->vidioc_s_crop(file, fh, p); |
| 1602 | } else { |
| 1603 | /* simulate capture crop using selection api */ |
| 1604 | struct v4l2_selection s = { |
| 1605 | .type = p->type, |
| 1606 | .r = p->c, |
| 1607 | }; |
| 1608 | |
| 1609 | /* crop means compose for output devices */ |
| 1610 | if (V4L2_TYPE_IS_OUTPUT(p->type)) |
| 1611 | s.target = V4L2_SEL_TGT_COMPOSE_ACTIVE; |
| 1612 | else |
| 1613 | s.target = V4L2_SEL_TGT_CROP_ACTIVE; |
| 1614 | |
| 1615 | ret = ops->vidioc_s_selection(file, fh, &s); |
| 1616 | } |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1617 | break; |
| 1618 | } |
Tomasz Stanislawski | 0e8caac | 2011-08-10 10:37:47 -0300 | [diff] [blame] | 1619 | case VIDIOC_G_SELECTION: |
| 1620 | { |
| 1621 | struct v4l2_selection *p = arg; |
| 1622 | |
| 1623 | if (!ops->vidioc_g_selection) |
| 1624 | break; |
| 1625 | |
| 1626 | dbgarg(cmd, "type=%s\n", prt_names(p->type, v4l2_type_names)); |
| 1627 | |
| 1628 | ret = ops->vidioc_g_selection(file, fh, p); |
| 1629 | if (!ret) |
| 1630 | dbgrect(vfd, "", &p->r); |
| 1631 | break; |
| 1632 | } |
| 1633 | case VIDIOC_S_SELECTION: |
| 1634 | { |
| 1635 | struct v4l2_selection *p = arg; |
| 1636 | |
| 1637 | if (!ops->vidioc_s_selection) |
| 1638 | break; |
| 1639 | |
| 1640 | if (ret_prio) { |
| 1641 | ret = ret_prio; |
| 1642 | break; |
| 1643 | } |
| 1644 | |
| 1645 | dbgarg(cmd, "type=%s\n", prt_names(p->type, v4l2_type_names)); |
| 1646 | dbgrect(vfd, "", &p->r); |
| 1647 | |
| 1648 | ret = ops->vidioc_s_selection(file, fh, p); |
| 1649 | break; |
| 1650 | } |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1651 | case VIDIOC_CROPCAP: |
| 1652 | { |
| 1653 | struct v4l2_cropcap *p = arg; |
| 1654 | |
| 1655 | /*FIXME: Should also show v4l2_fract pixelaspect */ |
Tomasz Stanislawski | 992efeff | 2011-03-22 14:04:47 -0300 | [diff] [blame] | 1656 | if (!ops->vidioc_cropcap && !ops->vidioc_g_selection) |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1657 | break; |
Mauro Carvalho Chehab | a56a18c | 2008-11-11 21:15:03 -0300 | [diff] [blame] | 1658 | |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1659 | dbgarg(cmd, "type=%s\n", prt_names(p->type, v4l2_type_names)); |
Tomasz Stanislawski | 992efeff | 2011-03-22 14:04:47 -0300 | [diff] [blame] | 1660 | if (ops->vidioc_cropcap) { |
| 1661 | ret = ops->vidioc_cropcap(file, fh, p); |
| 1662 | } else { |
| 1663 | struct v4l2_selection s = { .type = p->type }; |
| 1664 | |
| 1665 | /* obtaining bounds */ |
| 1666 | if (V4L2_TYPE_IS_OUTPUT(p->type)) |
| 1667 | s.target = V4L2_SEL_TGT_COMPOSE_BOUNDS; |
| 1668 | else |
| 1669 | s.target = V4L2_SEL_TGT_CROP_BOUNDS; |
| 1670 | |
| 1671 | ret = ops->vidioc_g_selection(file, fh, &s); |
| 1672 | if (ret) |
| 1673 | break; |
| 1674 | p->bounds = s.r; |
| 1675 | |
| 1676 | /* obtaining defrect */ |
| 1677 | if (V4L2_TYPE_IS_OUTPUT(p->type)) |
| 1678 | s.target = V4L2_SEL_TGT_COMPOSE_DEFAULT; |
| 1679 | else |
| 1680 | s.target = V4L2_SEL_TGT_CROP_DEFAULT; |
| 1681 | |
| 1682 | ret = ops->vidioc_g_selection(file, fh, &s); |
| 1683 | if (ret) |
| 1684 | break; |
| 1685 | p->defrect = s.r; |
| 1686 | |
| 1687 | /* setting trivial pixelaspect */ |
| 1688 | p->pixelaspect.numerator = 1; |
| 1689 | p->pixelaspect.denominator = 1; |
| 1690 | } |
| 1691 | |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1692 | if (!ret) { |
| 1693 | dbgrect(vfd, "bounds ", &p->bounds); |
| 1694 | dbgrect(vfd, "defrect ", &p->defrect); |
| 1695 | } |
| 1696 | break; |
| 1697 | } |
| 1698 | case VIDIOC_G_JPEGCOMP: |
| 1699 | { |
| 1700 | struct v4l2_jpegcompression *p = arg; |
| 1701 | |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 1702 | if (!ops->vidioc_g_jpegcomp) |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1703 | break; |
Mauro Carvalho Chehab | a56a18c | 2008-11-11 21:15:03 -0300 | [diff] [blame] | 1704 | |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 1705 | ret = ops->vidioc_g_jpegcomp(file, fh, p); |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1706 | if (!ret) |
| 1707 | dbgarg(cmd, "quality=%d, APPn=%d, " |
| 1708 | "APP_len=%d, COM_len=%d, " |
| 1709 | "jpeg_markers=%d\n", |
| 1710 | p->quality, p->APPn, p->APP_len, |
| 1711 | p->COM_len, p->jpeg_markers); |
| 1712 | break; |
| 1713 | } |
| 1714 | case VIDIOC_S_JPEGCOMP: |
| 1715 | { |
| 1716 | struct v4l2_jpegcompression *p = arg; |
| 1717 | |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 1718 | if (!ops->vidioc_g_jpegcomp) |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1719 | break; |
Hans Verkuil | 93d5a30 | 2011-08-09 09:32:06 -0300 | [diff] [blame] | 1720 | if (ret_prio) { |
| 1721 | ret = ret_prio; |
| 1722 | break; |
| 1723 | } |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1724 | dbgarg(cmd, "quality=%d, APPn=%d, APP_len=%d, " |
| 1725 | "COM_len=%d, jpeg_markers=%d\n", |
| 1726 | p->quality, p->APPn, p->APP_len, |
| 1727 | p->COM_len, p->jpeg_markers); |
Hans Verkuil | 93d5a30 | 2011-08-09 09:32:06 -0300 | [diff] [blame] | 1728 | ret = ops->vidioc_s_jpegcomp(file, fh, p); |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1729 | break; |
| 1730 | } |
| 1731 | case VIDIOC_G_ENC_INDEX: |
| 1732 | { |
| 1733 | struct v4l2_enc_idx *p = arg; |
| 1734 | |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 1735 | if (!ops->vidioc_g_enc_index) |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1736 | break; |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 1737 | ret = ops->vidioc_g_enc_index(file, fh, p); |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1738 | if (!ret) |
| 1739 | dbgarg(cmd, "entries=%d, entries_cap=%d\n", |
| 1740 | p->entries, p->entries_cap); |
| 1741 | break; |
| 1742 | } |
| 1743 | case VIDIOC_ENCODER_CMD: |
| 1744 | { |
| 1745 | struct v4l2_encoder_cmd *p = arg; |
| 1746 | |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 1747 | if (!ops->vidioc_encoder_cmd) |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1748 | break; |
Hans Verkuil | 93d5a30 | 2011-08-09 09:32:06 -0300 | [diff] [blame] | 1749 | if (ret_prio) { |
| 1750 | ret = ret_prio; |
| 1751 | break; |
| 1752 | } |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 1753 | ret = ops->vidioc_encoder_cmd(file, fh, p); |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1754 | if (!ret) |
| 1755 | dbgarg(cmd, "cmd=%d, flags=%x\n", p->cmd, p->flags); |
| 1756 | break; |
| 1757 | } |
| 1758 | case VIDIOC_TRY_ENCODER_CMD: |
| 1759 | { |
| 1760 | struct v4l2_encoder_cmd *p = arg; |
| 1761 | |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 1762 | if (!ops->vidioc_try_encoder_cmd) |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1763 | break; |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 1764 | ret = ops->vidioc_try_encoder_cmd(file, fh, p); |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1765 | if (!ret) |
| 1766 | dbgarg(cmd, "cmd=%d, flags=%x\n", p->cmd, p->flags); |
| 1767 | break; |
| 1768 | } |
Hans Verkuil | a45c0ad | 2011-11-24 09:53:43 -0300 | [diff] [blame] | 1769 | case VIDIOC_DECODER_CMD: |
| 1770 | { |
| 1771 | struct v4l2_decoder_cmd *p = arg; |
| 1772 | |
| 1773 | if (!ops->vidioc_decoder_cmd) |
| 1774 | break; |
| 1775 | if (ret_prio) { |
| 1776 | ret = ret_prio; |
| 1777 | break; |
| 1778 | } |
| 1779 | ret = ops->vidioc_decoder_cmd(file, fh, p); |
| 1780 | if (!ret) |
| 1781 | dbgarg(cmd, "cmd=%d, flags=%x\n", p->cmd, p->flags); |
| 1782 | break; |
| 1783 | } |
| 1784 | case VIDIOC_TRY_DECODER_CMD: |
| 1785 | { |
| 1786 | struct v4l2_decoder_cmd *p = arg; |
| 1787 | |
| 1788 | if (!ops->vidioc_try_decoder_cmd) |
| 1789 | break; |
| 1790 | ret = ops->vidioc_try_decoder_cmd(file, fh, p); |
| 1791 | if (!ret) |
| 1792 | dbgarg(cmd, "cmd=%d, flags=%x\n", p->cmd, p->flags); |
| 1793 | break; |
| 1794 | } |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1795 | case VIDIOC_G_PARM: |
| 1796 | { |
| 1797 | struct v4l2_streamparm *p = arg; |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1798 | |
Hans Verkuil | 93d5a30 | 2011-08-09 09:32:06 -0300 | [diff] [blame] | 1799 | if (!ops->vidioc_g_parm && !vfd->current_norm) |
| 1800 | break; |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 1801 | if (ops->vidioc_g_parm) { |
Trent Piepho | 34796bc | 2009-03-28 22:25:35 -0300 | [diff] [blame] | 1802 | ret = check_fmt(ops, p->type); |
| 1803 | if (ret) |
| 1804 | break; |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 1805 | ret = ops->vidioc_g_parm(file, fh, p); |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1806 | } else { |
Hans Verkuil | 9bedc7f | 2009-08-07 07:28:16 -0300 | [diff] [blame] | 1807 | v4l2_std_id std = vfd->current_norm; |
| 1808 | |
Hans Verkuil | 93d5a30 | 2011-08-09 09:32:06 -0300 | [diff] [blame] | 1809 | ret = -EINVAL; |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1810 | if (p->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) |
Hans Verkuil | 3f5e182 | 2010-04-06 08:14:11 -0300 | [diff] [blame] | 1811 | break; |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1812 | |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1813 | ret = 0; |
Hans Verkuil | 9bedc7f | 2009-08-07 07:28:16 -0300 | [diff] [blame] | 1814 | if (ops->vidioc_g_std) |
| 1815 | ret = ops->vidioc_g_std(file, fh, &std); |
Hans Verkuil | 9bedc7f | 2009-08-07 07:28:16 -0300 | [diff] [blame] | 1816 | if (ret == 0) |
| 1817 | v4l2_video_std_frame_period(std, |
| 1818 | &p->parm.capture.timeperframe); |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1819 | } |
| 1820 | |
| 1821 | dbgarg(cmd, "type=%d\n", p->type); |
| 1822 | break; |
| 1823 | } |
| 1824 | case VIDIOC_S_PARM: |
| 1825 | { |
| 1826 | struct v4l2_streamparm *p = arg; |
| 1827 | |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 1828 | if (!ops->vidioc_s_parm) |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1829 | break; |
Hans Verkuil | 93d5a30 | 2011-08-09 09:32:06 -0300 | [diff] [blame] | 1830 | if (ret_prio) { |
| 1831 | ret = ret_prio; |
| 1832 | break; |
| 1833 | } |
Trent Piepho | 34796bc | 2009-03-28 22:25:35 -0300 | [diff] [blame] | 1834 | ret = check_fmt(ops, p->type); |
| 1835 | if (ret) |
| 1836 | break; |
| 1837 | |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1838 | dbgarg(cmd, "type=%d\n", p->type); |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 1839 | ret = ops->vidioc_s_parm(file, fh, p); |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1840 | break; |
| 1841 | } |
| 1842 | case VIDIOC_G_TUNER: |
| 1843 | { |
| 1844 | struct v4l2_tuner *p = arg; |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1845 | |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 1846 | if (!ops->vidioc_g_tuner) |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1847 | break; |
| 1848 | |
Hans Verkuil | 227690d | 2011-06-12 06:36:41 -0300 | [diff] [blame] | 1849 | p->type = (vfd->vfl_type == VFL_TYPE_RADIO) ? |
| 1850 | V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV; |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 1851 | ret = ops->vidioc_g_tuner(file, fh, p); |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1852 | if (!ret) |
| 1853 | dbgarg(cmd, "index=%d, name=%s, type=%d, " |
| 1854 | "capability=0x%x, rangelow=%d, " |
| 1855 | "rangehigh=%d, signal=%d, afc=%d, " |
| 1856 | "rxsubchans=0x%x, audmode=%d\n", |
| 1857 | p->index, p->name, p->type, |
| 1858 | p->capability, p->rangelow, |
| 1859 | p->rangehigh, p->signal, p->afc, |
| 1860 | p->rxsubchans, p->audmode); |
| 1861 | break; |
| 1862 | } |
| 1863 | case VIDIOC_S_TUNER: |
| 1864 | { |
| 1865 | struct v4l2_tuner *p = arg; |
| 1866 | |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 1867 | if (!ops->vidioc_s_tuner) |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1868 | break; |
Hans Verkuil | 93d5a30 | 2011-08-09 09:32:06 -0300 | [diff] [blame] | 1869 | if (ret_prio) { |
| 1870 | ret = ret_prio; |
| 1871 | break; |
| 1872 | } |
Hans Verkuil | 227690d | 2011-06-12 06:36:41 -0300 | [diff] [blame] | 1873 | p->type = (vfd->vfl_type == VFL_TYPE_RADIO) ? |
| 1874 | V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV; |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1875 | dbgarg(cmd, "index=%d, name=%s, type=%d, " |
| 1876 | "capability=0x%x, rangelow=%d, " |
| 1877 | "rangehigh=%d, signal=%d, afc=%d, " |
| 1878 | "rxsubchans=0x%x, audmode=%d\n", |
| 1879 | p->index, p->name, p->type, |
| 1880 | p->capability, p->rangelow, |
| 1881 | p->rangehigh, p->signal, p->afc, |
| 1882 | p->rxsubchans, p->audmode); |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 1883 | ret = ops->vidioc_s_tuner(file, fh, p); |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1884 | break; |
| 1885 | } |
| 1886 | case VIDIOC_G_FREQUENCY: |
| 1887 | { |
| 1888 | struct v4l2_frequency *p = arg; |
| 1889 | |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 1890 | if (!ops->vidioc_g_frequency) |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1891 | break; |
| 1892 | |
Hans Verkuil | 227690d | 2011-06-12 06:36:41 -0300 | [diff] [blame] | 1893 | p->type = (vfd->vfl_type == VFL_TYPE_RADIO) ? |
| 1894 | V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV; |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 1895 | ret = ops->vidioc_g_frequency(file, fh, p); |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1896 | if (!ret) |
| 1897 | dbgarg(cmd, "tuner=%d, type=%d, frequency=%d\n", |
| 1898 | p->tuner, p->type, p->frequency); |
| 1899 | break; |
| 1900 | } |
| 1901 | case VIDIOC_S_FREQUENCY: |
| 1902 | { |
| 1903 | struct v4l2_frequency *p = arg; |
Hans Verkuil | aa07eec | 2011-10-11 05:12:52 -0300 | [diff] [blame] | 1904 | enum v4l2_tuner_type type; |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1905 | |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 1906 | if (!ops->vidioc_s_frequency) |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1907 | break; |
Hans Verkuil | 93d5a30 | 2011-08-09 09:32:06 -0300 | [diff] [blame] | 1908 | if (ret_prio) { |
| 1909 | ret = ret_prio; |
| 1910 | break; |
| 1911 | } |
Hans Verkuil | aa07eec | 2011-10-11 05:12:52 -0300 | [diff] [blame] | 1912 | type = (vfd->vfl_type == VFL_TYPE_RADIO) ? |
| 1913 | V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV; |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1914 | dbgarg(cmd, "tuner=%d, type=%d, frequency=%d\n", |
| 1915 | p->tuner, p->type, p->frequency); |
Hans Verkuil | aa07eec | 2011-10-11 05:12:52 -0300 | [diff] [blame] | 1916 | if (p->type != type) |
| 1917 | ret = -EINVAL; |
| 1918 | else |
| 1919 | ret = ops->vidioc_s_frequency(file, fh, p); |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1920 | break; |
| 1921 | } |
| 1922 | case VIDIOC_G_SLICED_VBI_CAP: |
| 1923 | { |
| 1924 | struct v4l2_sliced_vbi_cap *p = arg; |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1925 | |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 1926 | if (!ops->vidioc_g_sliced_vbi_cap) |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1927 | break; |
Trent Piepho | 19c96e4 | 2009-03-04 01:21:02 -0300 | [diff] [blame] | 1928 | |
| 1929 | /* Clear up to type, everything after type is zerod already */ |
| 1930 | memset(p, 0, offsetof(struct v4l2_sliced_vbi_cap, type)); |
| 1931 | |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1932 | dbgarg(cmd, "type=%s\n", prt_names(p->type, v4l2_type_names)); |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 1933 | ret = ops->vidioc_g_sliced_vbi_cap(file, fh, p); |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1934 | if (!ret) |
| 1935 | dbgarg2("service_set=%d\n", p->service_set); |
| 1936 | break; |
| 1937 | } |
| 1938 | case VIDIOC_LOG_STATUS: |
| 1939 | { |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 1940 | if (!ops->vidioc_log_status) |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1941 | break; |
Hans Verkuil | e2ecb25 | 2012-02-02 08:20:53 -0300 | [diff] [blame^] | 1942 | if (vfd->v4l2_dev) |
| 1943 | pr_info("%s: ================= START STATUS =================\n", |
| 1944 | vfd->v4l2_dev->name); |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 1945 | ret = ops->vidioc_log_status(file, fh); |
Hans Verkuil | e2ecb25 | 2012-02-02 08:20:53 -0300 | [diff] [blame^] | 1946 | if (vfd->v4l2_dev) |
| 1947 | pr_info("%s: ================== END STATUS ==================\n", |
| 1948 | vfd->v4l2_dev->name); |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1949 | break; |
| 1950 | } |
| 1951 | #ifdef CONFIG_VIDEO_ADV_DEBUG |
| 1952 | case VIDIOC_DBG_G_REGISTER: |
| 1953 | { |
Hans Verkuil | aecde8b5 | 2008-12-30 07:14:19 -0300 | [diff] [blame] | 1954 | struct v4l2_dbg_register *p = arg; |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1955 | |
Hans Verkuil | a1198cc | 2011-01-08 09:53:32 -0300 | [diff] [blame] | 1956 | if (ops->vidioc_g_register) { |
| 1957 | if (!capable(CAP_SYS_ADMIN)) |
| 1958 | ret = -EPERM; |
| 1959 | else |
| 1960 | ret = ops->vidioc_g_register(file, fh, p); |
| 1961 | } |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1962 | break; |
| 1963 | } |
| 1964 | case VIDIOC_DBG_S_REGISTER: |
| 1965 | { |
Hans Verkuil | aecde8b5 | 2008-12-30 07:14:19 -0300 | [diff] [blame] | 1966 | struct v4l2_dbg_register *p = arg; |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1967 | |
Hans Verkuil | a1198cc | 2011-01-08 09:53:32 -0300 | [diff] [blame] | 1968 | if (ops->vidioc_s_register) { |
| 1969 | if (!capable(CAP_SYS_ADMIN)) |
| 1970 | ret = -EPERM; |
| 1971 | else |
| 1972 | ret = ops->vidioc_s_register(file, fh, p); |
| 1973 | } |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1974 | break; |
| 1975 | } |
| 1976 | #endif |
Hans Verkuil | aecde8b5 | 2008-12-30 07:14:19 -0300 | [diff] [blame] | 1977 | case VIDIOC_DBG_G_CHIP_IDENT: |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1978 | { |
Hans Verkuil | aecde8b5 | 2008-12-30 07:14:19 -0300 | [diff] [blame] | 1979 | struct v4l2_dbg_chip_ident *p = arg; |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1980 | |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 1981 | if (!ops->vidioc_g_chip_ident) |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1982 | break; |
Hans Verkuil | 80b36e0 | 2009-02-07 11:00:02 -0300 | [diff] [blame] | 1983 | p->ident = V4L2_IDENT_NONE; |
| 1984 | p->revision = 0; |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 1985 | ret = ops->vidioc_g_chip_ident(file, fh, p); |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1986 | if (!ret) |
| 1987 | dbgarg(cmd, "chip_ident=%u, revision=0x%x\n", p->ident, p->revision); |
| 1988 | break; |
| 1989 | } |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1990 | case VIDIOC_S_HW_FREQ_SEEK: |
| 1991 | { |
| 1992 | struct v4l2_hw_freq_seek *p = arg; |
Hans Verkuil | a6cf90a | 2011-06-14 04:03:26 -0300 | [diff] [blame] | 1993 | enum v4l2_tuner_type type; |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1994 | |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 1995 | if (!ops->vidioc_s_hw_freq_seek) |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 1996 | break; |
Hans Verkuil | 93d5a30 | 2011-08-09 09:32:06 -0300 | [diff] [blame] | 1997 | if (ret_prio) { |
| 1998 | ret = ret_prio; |
| 1999 | break; |
| 2000 | } |
Hans Verkuil | a6cf90a | 2011-06-14 04:03:26 -0300 | [diff] [blame] | 2001 | type = (vfd->vfl_type == VFL_TYPE_RADIO) ? |
| 2002 | V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV; |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 2003 | dbgarg(cmd, |
Hans Verkuil | a6cf90a | 2011-06-14 04:03:26 -0300 | [diff] [blame] | 2004 | "tuner=%u, type=%u, seek_upward=%u, wrap_around=%u, spacing=%u\n", |
| 2005 | p->tuner, p->type, p->seek_upward, p->wrap_around, p->spacing); |
| 2006 | if (p->type != type) |
| 2007 | ret = -EINVAL; |
| 2008 | else |
| 2009 | ret = ops->vidioc_s_hw_freq_seek(file, fh, p); |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 2010 | break; |
| 2011 | } |
Mauro Carvalho Chehab | 74d83fa | 2008-11-11 21:13:47 -0300 | [diff] [blame] | 2012 | case VIDIOC_ENUM_FRAMESIZES: |
| 2013 | { |
| 2014 | struct v4l2_frmsizeenum *p = arg; |
| 2015 | |
| 2016 | if (!ops->vidioc_enum_framesizes) |
| 2017 | break; |
| 2018 | |
Mauro Carvalho Chehab | 74d83fa | 2008-11-11 21:13:47 -0300 | [diff] [blame] | 2019 | ret = ops->vidioc_enum_framesizes(file, fh, p); |
| 2020 | dbgarg(cmd, |
Mauro Carvalho Chehab | d1afe42 | 2009-06-21 22:37:12 -0300 | [diff] [blame] | 2021 | "index=%d, pixelformat=%c%c%c%c, type=%d ", |
| 2022 | p->index, |
| 2023 | (p->pixel_format & 0xff), |
| 2024 | (p->pixel_format >> 8) & 0xff, |
| 2025 | (p->pixel_format >> 16) & 0xff, |
| 2026 | (p->pixel_format >> 24) & 0xff, |
| 2027 | p->type); |
Mauro Carvalho Chehab | 74d83fa | 2008-11-11 21:13:47 -0300 | [diff] [blame] | 2028 | switch (p->type) { |
| 2029 | case V4L2_FRMSIZE_TYPE_DISCRETE: |
Mauro Carvalho Chehab | d33fbcb | 2009-07-02 17:07:32 -0300 | [diff] [blame] | 2030 | dbgarg3("width = %d, height=%d\n", |
Mauro Carvalho Chehab | 74d83fa | 2008-11-11 21:13:47 -0300 | [diff] [blame] | 2031 | p->discrete.width, p->discrete.height); |
| 2032 | break; |
| 2033 | case V4L2_FRMSIZE_TYPE_STEPWISE: |
Mauro Carvalho Chehab | d33fbcb | 2009-07-02 17:07:32 -0300 | [diff] [blame] | 2034 | dbgarg3("min %dx%d, max %dx%d, step %dx%d\n", |
Mauro Carvalho Chehab | 74d83fa | 2008-11-11 21:13:47 -0300 | [diff] [blame] | 2035 | p->stepwise.min_width, p->stepwise.min_height, |
| 2036 | p->stepwise.step_width, p->stepwise.step_height, |
| 2037 | p->stepwise.max_width, p->stepwise.max_height); |
| 2038 | break; |
| 2039 | case V4L2_FRMSIZE_TYPE_CONTINUOUS: |
Mauro Carvalho Chehab | d33fbcb | 2009-07-02 17:07:32 -0300 | [diff] [blame] | 2040 | dbgarg3("continuous\n"); |
Mauro Carvalho Chehab | 74d83fa | 2008-11-11 21:13:47 -0300 | [diff] [blame] | 2041 | break; |
| 2042 | default: |
Mauro Carvalho Chehab | d33fbcb | 2009-07-02 17:07:32 -0300 | [diff] [blame] | 2043 | dbgarg3("- Unknown type!\n"); |
Mauro Carvalho Chehab | 74d83fa | 2008-11-11 21:13:47 -0300 | [diff] [blame] | 2044 | } |
| 2045 | |
| 2046 | break; |
| 2047 | } |
| 2048 | case VIDIOC_ENUM_FRAMEINTERVALS: |
| 2049 | { |
| 2050 | struct v4l2_frmivalenum *p = arg; |
| 2051 | |
| 2052 | if (!ops->vidioc_enum_frameintervals) |
| 2053 | break; |
| 2054 | |
Mauro Carvalho Chehab | 74d83fa | 2008-11-11 21:13:47 -0300 | [diff] [blame] | 2055 | ret = ops->vidioc_enum_frameintervals(file, fh, p); |
| 2056 | dbgarg(cmd, |
| 2057 | "index=%d, pixelformat=%d, width=%d, height=%d, type=%d ", |
| 2058 | p->index, p->pixel_format, |
| 2059 | p->width, p->height, p->type); |
| 2060 | switch (p->type) { |
| 2061 | case V4L2_FRMIVAL_TYPE_DISCRETE: |
| 2062 | dbgarg2("fps=%d/%d\n", |
| 2063 | p->discrete.numerator, |
| 2064 | p->discrete.denominator); |
| 2065 | break; |
| 2066 | case V4L2_FRMIVAL_TYPE_STEPWISE: |
Mauro Carvalho Chehab | 1958578 | 2008-11-12 01:03:02 -0300 | [diff] [blame] | 2067 | dbgarg2("min=%d/%d, max=%d/%d, step=%d/%d\n", |
| 2068 | p->stepwise.min.numerator, |
| 2069 | p->stepwise.min.denominator, |
| 2070 | p->stepwise.max.numerator, |
| 2071 | p->stepwise.max.denominator, |
| 2072 | p->stepwise.step.numerator, |
| 2073 | p->stepwise.step.denominator); |
Mauro Carvalho Chehab | 74d83fa | 2008-11-11 21:13:47 -0300 | [diff] [blame] | 2074 | break; |
| 2075 | case V4L2_FRMIVAL_TYPE_CONTINUOUS: |
| 2076 | dbgarg2("continuous\n"); |
| 2077 | break; |
| 2078 | default: |
| 2079 | dbgarg2("- Unknown type!\n"); |
| 2080 | } |
| 2081 | break; |
| 2082 | } |
Muralidharan Karicheri | b6456c0 | 2009-11-19 12:00:31 -0300 | [diff] [blame] | 2083 | case VIDIOC_ENUM_DV_PRESETS: |
| 2084 | { |
| 2085 | struct v4l2_dv_enum_preset *p = arg; |
| 2086 | |
| 2087 | if (!ops->vidioc_enum_dv_presets) |
| 2088 | break; |
| 2089 | |
| 2090 | ret = ops->vidioc_enum_dv_presets(file, fh, p); |
| 2091 | if (!ret) |
| 2092 | dbgarg(cmd, |
| 2093 | "index=%d, preset=%d, name=%s, width=%d," |
| 2094 | " height=%d ", |
| 2095 | p->index, p->preset, p->name, p->width, |
| 2096 | p->height); |
| 2097 | break; |
| 2098 | } |
| 2099 | case VIDIOC_S_DV_PRESET: |
| 2100 | { |
| 2101 | struct v4l2_dv_preset *p = arg; |
| 2102 | |
| 2103 | if (!ops->vidioc_s_dv_preset) |
| 2104 | break; |
Hans Verkuil | 93d5a30 | 2011-08-09 09:32:06 -0300 | [diff] [blame] | 2105 | if (ret_prio) { |
| 2106 | ret = ret_prio; |
| 2107 | break; |
| 2108 | } |
Muralidharan Karicheri | b6456c0 | 2009-11-19 12:00:31 -0300 | [diff] [blame] | 2109 | |
| 2110 | dbgarg(cmd, "preset=%d\n", p->preset); |
| 2111 | ret = ops->vidioc_s_dv_preset(file, fh, p); |
| 2112 | break; |
| 2113 | } |
| 2114 | case VIDIOC_G_DV_PRESET: |
| 2115 | { |
| 2116 | struct v4l2_dv_preset *p = arg; |
| 2117 | |
| 2118 | if (!ops->vidioc_g_dv_preset) |
| 2119 | break; |
| 2120 | |
| 2121 | ret = ops->vidioc_g_dv_preset(file, fh, p); |
| 2122 | if (!ret) |
| 2123 | dbgarg(cmd, "preset=%d\n", p->preset); |
| 2124 | break; |
| 2125 | } |
| 2126 | case VIDIOC_QUERY_DV_PRESET: |
| 2127 | { |
| 2128 | struct v4l2_dv_preset *p = arg; |
| 2129 | |
| 2130 | if (!ops->vidioc_query_dv_preset) |
| 2131 | break; |
| 2132 | |
| 2133 | ret = ops->vidioc_query_dv_preset(file, fh, p); |
| 2134 | if (!ret) |
| 2135 | dbgarg(cmd, "preset=%d\n", p->preset); |
| 2136 | break; |
| 2137 | } |
| 2138 | case VIDIOC_S_DV_TIMINGS: |
| 2139 | { |
| 2140 | struct v4l2_dv_timings *p = arg; |
| 2141 | |
| 2142 | if (!ops->vidioc_s_dv_timings) |
| 2143 | break; |
Hans Verkuil | 93d5a30 | 2011-08-09 09:32:06 -0300 | [diff] [blame] | 2144 | if (ret_prio) { |
| 2145 | ret = ret_prio; |
| 2146 | break; |
| 2147 | } |
Muralidharan Karicheri | b6456c0 | 2009-11-19 12:00:31 -0300 | [diff] [blame] | 2148 | |
| 2149 | switch (p->type) { |
| 2150 | case V4L2_DV_BT_656_1120: |
| 2151 | dbgarg2("bt-656/1120:interlaced=%d, pixelclock=%lld," |
| 2152 | " width=%d, height=%d, polarities=%x," |
| 2153 | " hfrontporch=%d, hsync=%d, hbackporch=%d," |
| 2154 | " vfrontporch=%d, vsync=%d, vbackporch=%d," |
| 2155 | " il_vfrontporch=%d, il_vsync=%d," |
| 2156 | " il_vbackporch=%d\n", |
| 2157 | p->bt.interlaced, p->bt.pixelclock, |
| 2158 | p->bt.width, p->bt.height, p->bt.polarities, |
| 2159 | p->bt.hfrontporch, p->bt.hsync, |
| 2160 | p->bt.hbackporch, p->bt.vfrontporch, |
| 2161 | p->bt.vsync, p->bt.vbackporch, |
| 2162 | p->bt.il_vfrontporch, p->bt.il_vsync, |
| 2163 | p->bt.il_vbackporch); |
| 2164 | ret = ops->vidioc_s_dv_timings(file, fh, p); |
| 2165 | break; |
| 2166 | default: |
| 2167 | dbgarg2("Unknown type %d!\n", p->type); |
| 2168 | break; |
| 2169 | } |
| 2170 | break; |
| 2171 | } |
| 2172 | case VIDIOC_G_DV_TIMINGS: |
| 2173 | { |
| 2174 | struct v4l2_dv_timings *p = arg; |
| 2175 | |
| 2176 | if (!ops->vidioc_g_dv_timings) |
| 2177 | break; |
| 2178 | |
| 2179 | ret = ops->vidioc_g_dv_timings(file, fh, p); |
| 2180 | if (!ret) { |
| 2181 | switch (p->type) { |
| 2182 | case V4L2_DV_BT_656_1120: |
| 2183 | dbgarg2("bt-656/1120:interlaced=%d," |
| 2184 | " pixelclock=%lld," |
| 2185 | " width=%d, height=%d, polarities=%x," |
| 2186 | " hfrontporch=%d, hsync=%d," |
| 2187 | " hbackporch=%d, vfrontporch=%d," |
| 2188 | " vsync=%d, vbackporch=%d," |
| 2189 | " il_vfrontporch=%d, il_vsync=%d," |
| 2190 | " il_vbackporch=%d\n", |
| 2191 | p->bt.interlaced, p->bt.pixelclock, |
| 2192 | p->bt.width, p->bt.height, |
| 2193 | p->bt.polarities, p->bt.hfrontporch, |
| 2194 | p->bt.hsync, p->bt.hbackporch, |
| 2195 | p->bt.vfrontporch, p->bt.vsync, |
| 2196 | p->bt.vbackporch, p->bt.il_vfrontporch, |
| 2197 | p->bt.il_vsync, p->bt.il_vbackporch); |
| 2198 | break; |
| 2199 | default: |
| 2200 | dbgarg2("Unknown type %d!\n", p->type); |
| 2201 | break; |
| 2202 | } |
| 2203 | } |
| 2204 | break; |
| 2205 | } |
Sakari Ailus | d3d7c96 | 2010-03-27 11:02:10 -0300 | [diff] [blame] | 2206 | case VIDIOC_DQEVENT: |
| 2207 | { |
| 2208 | struct v4l2_event *ev = arg; |
Mauro Carvalho Chehab | 74d83fa | 2008-11-11 21:13:47 -0300 | [diff] [blame] | 2209 | |
Sakari Ailus | d3d7c96 | 2010-03-27 11:02:10 -0300 | [diff] [blame] | 2210 | if (!ops->vidioc_subscribe_event) |
| 2211 | break; |
| 2212 | |
| 2213 | ret = v4l2_event_dequeue(fh, ev, file->f_flags & O_NONBLOCK); |
| 2214 | if (ret < 0) { |
| 2215 | dbgarg(cmd, "no pending events?"); |
| 2216 | break; |
| 2217 | } |
| 2218 | dbgarg(cmd, |
| 2219 | "pending=%d, type=0x%8.8x, sequence=%d, " |
| 2220 | "timestamp=%lu.%9.9lu ", |
| 2221 | ev->pending, ev->type, ev->sequence, |
| 2222 | ev->timestamp.tv_sec, ev->timestamp.tv_nsec); |
| 2223 | break; |
| 2224 | } |
| 2225 | case VIDIOC_SUBSCRIBE_EVENT: |
| 2226 | { |
| 2227 | struct v4l2_event_subscription *sub = arg; |
| 2228 | |
| 2229 | if (!ops->vidioc_subscribe_event) |
| 2230 | break; |
| 2231 | |
| 2232 | ret = ops->vidioc_subscribe_event(fh, sub); |
| 2233 | if (ret < 0) { |
| 2234 | dbgarg(cmd, "failed, ret=%ld", ret); |
| 2235 | break; |
| 2236 | } |
| 2237 | dbgarg(cmd, "type=0x%8.8x", sub->type); |
| 2238 | break; |
| 2239 | } |
| 2240 | case VIDIOC_UNSUBSCRIBE_EVENT: |
| 2241 | { |
| 2242 | struct v4l2_event_subscription *sub = arg; |
| 2243 | |
| 2244 | if (!ops->vidioc_unsubscribe_event) |
| 2245 | break; |
| 2246 | |
| 2247 | ret = ops->vidioc_unsubscribe_event(fh, sub); |
| 2248 | if (ret < 0) { |
| 2249 | dbgarg(cmd, "failed, ret=%ld", ret); |
| 2250 | break; |
| 2251 | } |
| 2252 | dbgarg(cmd, "type=0x%8.8x", sub->type); |
| 2253 | break; |
| 2254 | } |
Guennadi Liakhovetski | 2150158 | 2011-09-28 11:34:06 -0300 | [diff] [blame] | 2255 | case VIDIOC_CREATE_BUFS: |
| 2256 | { |
| 2257 | struct v4l2_create_buffers *create = arg; |
| 2258 | |
| 2259 | if (!ops->vidioc_create_bufs) |
| 2260 | break; |
| 2261 | if (ret_prio) { |
| 2262 | ret = ret_prio; |
| 2263 | break; |
| 2264 | } |
| 2265 | ret = check_fmt(ops, create->format.type); |
| 2266 | if (ret) |
| 2267 | break; |
| 2268 | |
| 2269 | ret = ops->vidioc_create_bufs(file, fh, create); |
| 2270 | |
| 2271 | dbgarg(cmd, "count=%d @ %d\n", create->count, create->index); |
| 2272 | break; |
| 2273 | } |
| 2274 | case VIDIOC_PREPARE_BUF: |
| 2275 | { |
| 2276 | struct v4l2_buffer *b = arg; |
| 2277 | |
| 2278 | if (!ops->vidioc_prepare_buf) |
| 2279 | break; |
| 2280 | ret = check_fmt(ops, b->type); |
| 2281 | if (ret) |
| 2282 | break; |
| 2283 | |
| 2284 | ret = ops->vidioc_prepare_buf(file, fh, b); |
| 2285 | |
| 2286 | dbgarg(cmd, "index=%d", b->index); |
| 2287 | break; |
| 2288 | } |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 2289 | default: |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 2290 | if (!ops->vidioc_default) |
| 2291 | break; |
Hans Verkuil | 93d5a30 | 2011-08-09 09:32:06 -0300 | [diff] [blame] | 2292 | ret = ops->vidioc_default(file, fh, ret_prio >= 0, cmd, arg); |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 2293 | break; |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 2294 | } /* switch */ |
| 2295 | |
| 2296 | if (vfd->debug & V4L2_DEBUG_IOCTL_ARG) { |
| 2297 | if (ret < 0) { |
| 2298 | v4l_print_ioctl(vfd->name, cmd); |
Hans Verkuil | 069b747 | 2008-12-30 07:04:34 -0300 | [diff] [blame] | 2299 | printk(KERN_CONT " error %ld\n", ret); |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 2300 | } |
| 2301 | } |
| 2302 | |
| 2303 | return ret; |
| 2304 | } |
| 2305 | |
Trent Piepho | 19c96e4 | 2009-03-04 01:21:02 -0300 | [diff] [blame] | 2306 | /* In some cases, only a few fields are used as input, i.e. when the app sets |
| 2307 | * "index" and then the driver fills in the rest of the structure for the thing |
| 2308 | * with that index. We only need to copy up the first non-input field. */ |
| 2309 | static unsigned long cmd_input_size(unsigned int cmd) |
| 2310 | { |
| 2311 | /* Size of structure up to and including 'field' */ |
Hans Verkuil | 9f1a693 | 2009-03-08 10:35:23 -0300 | [diff] [blame] | 2312 | #define CMDINSIZE(cmd, type, field) \ |
| 2313 | case VIDIOC_##cmd: \ |
| 2314 | return offsetof(struct v4l2_##type, field) + \ |
| 2315 | sizeof(((struct v4l2_##type *)0)->field); |
Trent Piepho | 19c96e4 | 2009-03-04 01:21:02 -0300 | [diff] [blame] | 2316 | |
Hans Verkuil | 9f1a693 | 2009-03-08 10:35:23 -0300 | [diff] [blame] | 2317 | switch (cmd) { |
Trent Piepho | 19c96e4 | 2009-03-04 01:21:02 -0300 | [diff] [blame] | 2318 | CMDINSIZE(ENUM_FMT, fmtdesc, type); |
| 2319 | CMDINSIZE(G_FMT, format, type); |
Pawel Osciak | d14e6d7 | 2010-12-23 04:15:27 -0300 | [diff] [blame] | 2320 | CMDINSIZE(QUERYBUF, buffer, length); |
Trent Piepho | 19c96e4 | 2009-03-04 01:21:02 -0300 | [diff] [blame] | 2321 | CMDINSIZE(G_PARM, streamparm, type); |
| 2322 | CMDINSIZE(ENUMSTD, standard, index); |
| 2323 | CMDINSIZE(ENUMINPUT, input, index); |
| 2324 | CMDINSIZE(G_CTRL, control, id); |
| 2325 | CMDINSIZE(G_TUNER, tuner, index); |
| 2326 | CMDINSIZE(QUERYCTRL, queryctrl, id); |
| 2327 | CMDINSIZE(QUERYMENU, querymenu, index); |
| 2328 | CMDINSIZE(ENUMOUTPUT, output, index); |
| 2329 | CMDINSIZE(G_MODULATOR, modulator, index); |
| 2330 | CMDINSIZE(G_FREQUENCY, frequency, tuner); |
| 2331 | CMDINSIZE(CROPCAP, cropcap, type); |
| 2332 | CMDINSIZE(G_CROP, crop, type); |
| 2333 | CMDINSIZE(ENUMAUDIO, audio, index); |
| 2334 | CMDINSIZE(ENUMAUDOUT, audioout, index); |
| 2335 | CMDINSIZE(ENCODER_CMD, encoder_cmd, flags); |
| 2336 | CMDINSIZE(TRY_ENCODER_CMD, encoder_cmd, flags); |
| 2337 | CMDINSIZE(G_SLICED_VBI_CAP, sliced_vbi_cap, type); |
| 2338 | CMDINSIZE(ENUM_FRAMESIZES, frmsizeenum, pixel_format); |
| 2339 | CMDINSIZE(ENUM_FRAMEINTERVALS, frmivalenum, height); |
| 2340 | default: |
| 2341 | return _IOC_SIZE(cmd); |
| 2342 | } |
| 2343 | } |
| 2344 | |
Pawel Osciak | d14e6d7 | 2010-12-23 04:15:27 -0300 | [diff] [blame] | 2345 | static int check_array_args(unsigned int cmd, void *parg, size_t *array_size, |
| 2346 | void * __user *user_ptr, void ***kernel_ptr) |
| 2347 | { |
| 2348 | int ret = 0; |
| 2349 | |
| 2350 | switch (cmd) { |
| 2351 | case VIDIOC_QUERYBUF: |
| 2352 | case VIDIOC_QBUF: |
| 2353 | case VIDIOC_DQBUF: { |
| 2354 | struct v4l2_buffer *buf = parg; |
| 2355 | |
| 2356 | if (V4L2_TYPE_IS_MULTIPLANAR(buf->type) && buf->length > 0) { |
| 2357 | if (buf->length > VIDEO_MAX_PLANES) { |
| 2358 | ret = -EINVAL; |
| 2359 | break; |
| 2360 | } |
| 2361 | *user_ptr = (void __user *)buf->m.planes; |
Hans Petter Selasky | 2ef4037 | 2011-05-23 08:13:06 -0300 | [diff] [blame] | 2362 | *kernel_ptr = (void *)&buf->m.planes; |
Pawel Osciak | d14e6d7 | 2010-12-23 04:15:27 -0300 | [diff] [blame] | 2363 | *array_size = sizeof(struct v4l2_plane) * buf->length; |
| 2364 | ret = 1; |
| 2365 | } |
| 2366 | break; |
| 2367 | } |
| 2368 | |
| 2369 | case VIDIOC_S_EXT_CTRLS: |
| 2370 | case VIDIOC_G_EXT_CTRLS: |
| 2371 | case VIDIOC_TRY_EXT_CTRLS: { |
| 2372 | struct v4l2_ext_controls *ctrls = parg; |
| 2373 | |
| 2374 | if (ctrls->count != 0) { |
Dan Carpenter | 6c06108 | 2012-01-05 02:27:57 -0300 | [diff] [blame] | 2375 | if (ctrls->count > V4L2_CID_MAX_CTRLS) { |
| 2376 | ret = -EINVAL; |
| 2377 | break; |
| 2378 | } |
Pawel Osciak | d14e6d7 | 2010-12-23 04:15:27 -0300 | [diff] [blame] | 2379 | *user_ptr = (void __user *)ctrls->controls; |
Hans Petter Selasky | 2ef4037 | 2011-05-23 08:13:06 -0300 | [diff] [blame] | 2380 | *kernel_ptr = (void *)&ctrls->controls; |
Pawel Osciak | d14e6d7 | 2010-12-23 04:15:27 -0300 | [diff] [blame] | 2381 | *array_size = sizeof(struct v4l2_ext_control) |
| 2382 | * ctrls->count; |
| 2383 | ret = 1; |
| 2384 | } |
| 2385 | break; |
| 2386 | } |
| 2387 | } |
| 2388 | |
| 2389 | return ret; |
| 2390 | } |
| 2391 | |
Laurent Pinchart | fc0a807 | 2010-07-12 11:09:41 -0300 | [diff] [blame] | 2392 | long |
| 2393 | video_usercopy(struct file *file, unsigned int cmd, unsigned long arg, |
| 2394 | v4l2_kioctl func) |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 2395 | { |
| 2396 | char sbuf[128]; |
| 2397 | void *mbuf = NULL; |
Hans Verkuil | 1d94aa3 | 2010-04-06 08:12:21 -0300 | [diff] [blame] | 2398 | void *parg = (void *)arg; |
Hans Verkuil | 069b747 | 2008-12-30 07:04:34 -0300 | [diff] [blame] | 2399 | long err = -EINVAL; |
Pawel Osciak | d14e6d7 | 2010-12-23 04:15:27 -0300 | [diff] [blame] | 2400 | bool has_array_args; |
| 2401 | size_t array_size = 0; |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 2402 | void __user *user_ptr = NULL; |
Pawel Osciak | d14e6d7 | 2010-12-23 04:15:27 -0300 | [diff] [blame] | 2403 | void **kernel_ptr = NULL; |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 2404 | |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 2405 | /* Copy arguments into temp kernel buffer */ |
Trent Piepho | 337f9d2 | 2009-03-04 01:21:02 -0300 | [diff] [blame] | 2406 | if (_IOC_DIR(cmd) != _IOC_NONE) { |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 2407 | if (_IOC_SIZE(cmd) <= sizeof(sbuf)) { |
| 2408 | parg = sbuf; |
| 2409 | } else { |
| 2410 | /* too big to allocate from stack */ |
| 2411 | mbuf = kmalloc(_IOC_SIZE(cmd), GFP_KERNEL); |
| 2412 | if (NULL == mbuf) |
| 2413 | return -ENOMEM; |
| 2414 | parg = mbuf; |
| 2415 | } |
| 2416 | |
| 2417 | err = -EFAULT; |
Trent Piepho | 19c96e4 | 2009-03-04 01:21:02 -0300 | [diff] [blame] | 2418 | if (_IOC_DIR(cmd) & _IOC_WRITE) { |
| 2419 | unsigned long n = cmd_input_size(cmd); |
| 2420 | |
| 2421 | if (copy_from_user(parg, (void __user *)arg, n)) |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 2422 | goto out; |
Trent Piepho | 19c96e4 | 2009-03-04 01:21:02 -0300 | [diff] [blame] | 2423 | |
| 2424 | /* zero out anything we don't copy from userspace */ |
| 2425 | if (n < _IOC_SIZE(cmd)) |
| 2426 | memset((u8 *)parg + n, 0, _IOC_SIZE(cmd) - n); |
Trent Piepho | 337f9d2 | 2009-03-04 01:21:02 -0300 | [diff] [blame] | 2427 | } else { |
| 2428 | /* read-only ioctl */ |
| 2429 | memset(parg, 0, _IOC_SIZE(cmd)); |
Trent Piepho | 19c96e4 | 2009-03-04 01:21:02 -0300 | [diff] [blame] | 2430 | } |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 2431 | } |
| 2432 | |
Pawel Osciak | d14e6d7 | 2010-12-23 04:15:27 -0300 | [diff] [blame] | 2433 | err = check_array_args(cmd, parg, &array_size, &user_ptr, &kernel_ptr); |
| 2434 | if (err < 0) |
| 2435 | goto out; |
| 2436 | has_array_args = err; |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 2437 | |
Pawel Osciak | d14e6d7 | 2010-12-23 04:15:27 -0300 | [diff] [blame] | 2438 | if (has_array_args) { |
| 2439 | /* |
| 2440 | * When adding new types of array args, make sure that the |
| 2441 | * parent argument to ioctl (which contains the pointer to the |
| 2442 | * array) fits into sbuf (so that mbuf will still remain |
| 2443 | * unused up to here). |
| 2444 | */ |
| 2445 | mbuf = kmalloc(array_size, GFP_KERNEL); |
| 2446 | err = -ENOMEM; |
| 2447 | if (NULL == mbuf) |
| 2448 | goto out_array_args; |
| 2449 | err = -EFAULT; |
| 2450 | if (copy_from_user(mbuf, user_ptr, array_size)) |
| 2451 | goto out_array_args; |
| 2452 | *kernel_ptr = mbuf; |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 2453 | } |
| 2454 | |
| 2455 | /* Handles IOCTL */ |
Laurent Pinchart | fc0a807 | 2010-07-12 11:09:41 -0300 | [diff] [blame] | 2456 | err = func(file, cmd, parg); |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 2457 | if (err == -ENOIOCTLCMD) |
| 2458 | err = -EINVAL; |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 2459 | |
Pawel Osciak | d14e6d7 | 2010-12-23 04:15:27 -0300 | [diff] [blame] | 2460 | if (has_array_args) { |
| 2461 | *kernel_ptr = user_ptr; |
| 2462 | if (copy_to_user(user_ptr, mbuf, array_size)) |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 2463 | err = -EFAULT; |
Pawel Osciak | d14e6d7 | 2010-12-23 04:15:27 -0300 | [diff] [blame] | 2464 | goto out_array_args; |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 2465 | } |
| 2466 | if (err < 0) |
| 2467 | goto out; |
| 2468 | |
Pawel Osciak | d14e6d7 | 2010-12-23 04:15:27 -0300 | [diff] [blame] | 2469 | out_array_args: |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 2470 | /* Copy results into user buffer */ |
| 2471 | switch (_IOC_DIR(cmd)) { |
| 2472 | case _IOC_READ: |
| 2473 | case (_IOC_WRITE | _IOC_READ): |
| 2474 | if (copy_to_user((void __user *)arg, parg, _IOC_SIZE(cmd))) |
| 2475 | err = -EFAULT; |
| 2476 | break; |
| 2477 | } |
| 2478 | |
| 2479 | out: |
| 2480 | kfree(mbuf); |
| 2481 | return err; |
| 2482 | } |
Laurent Pinchart | fc0a807 | 2010-07-12 11:09:41 -0300 | [diff] [blame] | 2483 | EXPORT_SYMBOL(video_usercopy); |
| 2484 | |
| 2485 | long video_ioctl2(struct file *file, |
| 2486 | unsigned int cmd, unsigned long arg) |
| 2487 | { |
| 2488 | return video_usercopy(file, cmd, arg, __video_do_ioctl); |
| 2489 | } |
Mauro Carvalho Chehab | 8a522c9 | 2008-10-21 11:58:39 -0300 | [diff] [blame] | 2490 | EXPORT_SYMBOL(video_ioctl2); |