Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * 32bit -> 64bit ioctl wrapper for PCM API |
| 3 | * Copyright (c) by Takashi Iwai <tiwai@suse.de> |
| 4 | * |
| 5 | * This program is free software; you can redistribute it and/or modify |
| 6 | * it under the terms of the GNU General Public License as published by |
| 7 | * the Free Software Foundation; either version 2 of the License, or |
| 8 | * (at your option) any later version. |
| 9 | * |
| 10 | * This program is distributed in the hope that it will be useful, |
| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 13 | * GNU General Public License for more details. |
| 14 | * |
| 15 | * You should have received a copy of the GNU General Public License |
| 16 | * along with this program; if not, write to the Free Software |
| 17 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 18 | * |
| 19 | */ |
| 20 | |
| 21 | /* This file included from pcm_native.c */ |
| 22 | |
| 23 | #include <linux/compat.h> |
Tejun Heo | 5a0e3ad | 2010-03-24 17:04:11 +0900 | [diff] [blame^] | 24 | #include <linux/slab.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 25 | |
Takashi Iwai | 877211f | 2005-11-17 13:59:38 +0100 | [diff] [blame] | 26 | static int snd_pcm_ioctl_delay_compat(struct snd_pcm_substream *substream, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 27 | s32 __user *src) |
| 28 | { |
| 29 | snd_pcm_sframes_t delay; |
| 30 | mm_segment_t fs; |
| 31 | int err; |
| 32 | |
| 33 | fs = snd_enter_user(); |
| 34 | err = snd_pcm_delay(substream, &delay); |
| 35 | snd_leave_user(fs); |
| 36 | if (err < 0) |
| 37 | return err; |
| 38 | if (put_user(delay, src)) |
| 39 | return -EFAULT; |
| 40 | return err; |
| 41 | } |
| 42 | |
Takashi Iwai | 877211f | 2005-11-17 13:59:38 +0100 | [diff] [blame] | 43 | static int snd_pcm_ioctl_rewind_compat(struct snd_pcm_substream *substream, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 44 | u32 __user *src) |
| 45 | { |
| 46 | snd_pcm_uframes_t frames; |
| 47 | int err; |
| 48 | |
| 49 | if (get_user(frames, src)) |
| 50 | return -EFAULT; |
| 51 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) |
| 52 | err = snd_pcm_playback_rewind(substream, frames); |
| 53 | else |
| 54 | err = snd_pcm_capture_rewind(substream, frames); |
| 55 | if (put_user(err, src)) |
| 56 | return -EFAULT; |
| 57 | return err < 0 ? err : 0; |
| 58 | } |
| 59 | |
Takashi Iwai | 877211f | 2005-11-17 13:59:38 +0100 | [diff] [blame] | 60 | static int snd_pcm_ioctl_forward_compat(struct snd_pcm_substream *substream, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 61 | u32 __user *src) |
| 62 | { |
| 63 | snd_pcm_uframes_t frames; |
| 64 | int err; |
| 65 | |
| 66 | if (get_user(frames, src)) |
| 67 | return -EFAULT; |
| 68 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) |
| 69 | err = snd_pcm_playback_forward(substream, frames); |
| 70 | else |
| 71 | err = snd_pcm_capture_forward(substream, frames); |
| 72 | if (put_user(err, src)) |
| 73 | return -EFAULT; |
| 74 | return err < 0 ? err : 0; |
| 75 | } |
| 76 | |
Takashi Iwai | 877211f | 2005-11-17 13:59:38 +0100 | [diff] [blame] | 77 | struct snd_pcm_hw_params32 { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 78 | u32 flags; |
Takashi Iwai | 877211f | 2005-11-17 13:59:38 +0100 | [diff] [blame] | 79 | struct snd_mask masks[SNDRV_PCM_HW_PARAM_LAST_MASK - SNDRV_PCM_HW_PARAM_FIRST_MASK + 1]; /* this must be identical */ |
| 80 | struct snd_mask mres[5]; /* reserved masks */ |
| 81 | struct snd_interval intervals[SNDRV_PCM_HW_PARAM_LAST_INTERVAL - SNDRV_PCM_HW_PARAM_FIRST_INTERVAL + 1]; |
| 82 | struct snd_interval ires[9]; /* reserved intervals */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 83 | u32 rmask; |
| 84 | u32 cmask; |
| 85 | u32 info; |
| 86 | u32 msbits; |
| 87 | u32 rate_num; |
| 88 | u32 rate_den; |
| 89 | u32 fifo_size; |
| 90 | unsigned char reserved[64]; |
| 91 | }; |
| 92 | |
Takashi Iwai | 877211f | 2005-11-17 13:59:38 +0100 | [diff] [blame] | 93 | struct snd_pcm_sw_params32 { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 94 | s32 tstamp_mode; |
| 95 | u32 period_step; |
| 96 | u32 sleep_min; |
| 97 | u32 avail_min; |
| 98 | u32 xfer_align; |
| 99 | u32 start_threshold; |
| 100 | u32 stop_threshold; |
| 101 | u32 silence_threshold; |
| 102 | u32 silence_size; |
| 103 | u32 boundary; |
| 104 | unsigned char reserved[64]; |
| 105 | }; |
| 106 | |
Takashi Iwai | b271131 | 2005-08-15 15:01:10 +0200 | [diff] [blame] | 107 | /* recalcuate the boundary within 32bit */ |
Takashi Iwai | 877211f | 2005-11-17 13:59:38 +0100 | [diff] [blame] | 108 | static snd_pcm_uframes_t recalculate_boundary(struct snd_pcm_runtime *runtime) |
Takashi Iwai | b271131 | 2005-08-15 15:01:10 +0200 | [diff] [blame] | 109 | { |
| 110 | snd_pcm_uframes_t boundary; |
| 111 | |
| 112 | if (! runtime->buffer_size) |
| 113 | return 0; |
| 114 | boundary = runtime->buffer_size; |
| 115 | while (boundary * 2 <= 0x7fffffffUL - runtime->buffer_size) |
| 116 | boundary *= 2; |
| 117 | return boundary; |
| 118 | } |
| 119 | |
Takashi Iwai | 877211f | 2005-11-17 13:59:38 +0100 | [diff] [blame] | 120 | static int snd_pcm_ioctl_sw_params_compat(struct snd_pcm_substream *substream, |
| 121 | struct snd_pcm_sw_params32 __user *src) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 122 | { |
Takashi Iwai | 877211f | 2005-11-17 13:59:38 +0100 | [diff] [blame] | 123 | struct snd_pcm_sw_params params; |
Takashi Iwai | b271131 | 2005-08-15 15:01:10 +0200 | [diff] [blame] | 124 | snd_pcm_uframes_t boundary; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 125 | int err; |
| 126 | |
| 127 | memset(¶ms, 0, sizeof(params)); |
| 128 | if (get_user(params.tstamp_mode, &src->tstamp_mode) || |
| 129 | get_user(params.period_step, &src->period_step) || |
| 130 | get_user(params.sleep_min, &src->sleep_min) || |
| 131 | get_user(params.avail_min, &src->avail_min) || |
| 132 | get_user(params.xfer_align, &src->xfer_align) || |
| 133 | get_user(params.start_threshold, &src->start_threshold) || |
| 134 | get_user(params.stop_threshold, &src->stop_threshold) || |
| 135 | get_user(params.silence_threshold, &src->silence_threshold) || |
| 136 | get_user(params.silence_size, &src->silence_size)) |
| 137 | return -EFAULT; |
Takashi Iwai | b271131 | 2005-08-15 15:01:10 +0200 | [diff] [blame] | 138 | /* |
| 139 | * Check silent_size parameter. Since we have 64bit boundary, |
| 140 | * silence_size must be compared with the 32bit boundary. |
| 141 | */ |
| 142 | boundary = recalculate_boundary(substream->runtime); |
| 143 | if (boundary && params.silence_size >= boundary) |
| 144 | params.silence_size = substream->runtime->boundary; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 145 | err = snd_pcm_sw_params(substream, ¶ms); |
| 146 | if (err < 0) |
| 147 | return err; |
Takashi Iwai | 7153a55 | 2005-08-25 19:51:47 +0200 | [diff] [blame] | 148 | if (boundary && put_user(boundary, &src->boundary)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 149 | return -EFAULT; |
| 150 | return err; |
| 151 | } |
| 152 | |
Takashi Iwai | 877211f | 2005-11-17 13:59:38 +0100 | [diff] [blame] | 153 | struct snd_pcm_channel_info32 { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 154 | u32 channel; |
| 155 | u32 offset; |
| 156 | u32 first; |
| 157 | u32 step; |
| 158 | }; |
| 159 | |
Takashi Iwai | 877211f | 2005-11-17 13:59:38 +0100 | [diff] [blame] | 160 | static int snd_pcm_ioctl_channel_info_compat(struct snd_pcm_substream *substream, |
| 161 | struct snd_pcm_channel_info32 __user *src) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 162 | { |
Takashi Iwai | 877211f | 2005-11-17 13:59:38 +0100 | [diff] [blame] | 163 | struct snd_pcm_channel_info info; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 164 | int err; |
| 165 | |
| 166 | if (get_user(info.channel, &src->channel) || |
| 167 | get_user(info.offset, &src->offset) || |
| 168 | get_user(info.first, &src->first) || |
| 169 | get_user(info.step, &src->step)) |
| 170 | return -EFAULT; |
| 171 | err = snd_pcm_channel_info(substream, &info); |
| 172 | if (err < 0) |
| 173 | return err; |
| 174 | if (put_user(info.channel, &src->channel) || |
| 175 | put_user(info.offset, &src->offset) || |
| 176 | put_user(info.first, &src->first) || |
| 177 | put_user(info.step, &src->step)) |
| 178 | return -EFAULT; |
| 179 | return err; |
| 180 | } |
| 181 | |
Takashi Iwai | 877211f | 2005-11-17 13:59:38 +0100 | [diff] [blame] | 182 | struct snd_pcm_status32 { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 183 | s32 state; |
| 184 | struct compat_timespec trigger_tstamp; |
| 185 | struct compat_timespec tstamp; |
| 186 | u32 appl_ptr; |
| 187 | u32 hw_ptr; |
| 188 | s32 delay; |
| 189 | u32 avail; |
| 190 | u32 avail_max; |
| 191 | u32 overrange; |
| 192 | s32 suspended_state; |
| 193 | unsigned char reserved[60]; |
| 194 | } __attribute__((packed)); |
| 195 | |
| 196 | |
Takashi Iwai | 877211f | 2005-11-17 13:59:38 +0100 | [diff] [blame] | 197 | static int snd_pcm_status_user_compat(struct snd_pcm_substream *substream, |
| 198 | struct snd_pcm_status32 __user *src) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 199 | { |
Takashi Iwai | 877211f | 2005-11-17 13:59:38 +0100 | [diff] [blame] | 200 | struct snd_pcm_status status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 201 | int err; |
| 202 | |
| 203 | err = snd_pcm_status(substream, &status); |
| 204 | if (err < 0) |
| 205 | return err; |
| 206 | |
| 207 | if (put_user(status.state, &src->state) || |
| 208 | put_user(status.trigger_tstamp.tv_sec, &src->trigger_tstamp.tv_sec) || |
| 209 | put_user(status.trigger_tstamp.tv_nsec, &src->trigger_tstamp.tv_nsec) || |
| 210 | put_user(status.tstamp.tv_sec, &src->tstamp.tv_sec) || |
| 211 | put_user(status.tstamp.tv_nsec, &src->tstamp.tv_nsec) || |
| 212 | put_user(status.appl_ptr, &src->appl_ptr) || |
| 213 | put_user(status.hw_ptr, &src->hw_ptr) || |
| 214 | put_user(status.delay, &src->delay) || |
| 215 | put_user(status.avail, &src->avail) || |
| 216 | put_user(status.avail_max, &src->avail_max) || |
| 217 | put_user(status.overrange, &src->overrange) || |
| 218 | put_user(status.suspended_state, &src->suspended_state)) |
| 219 | return -EFAULT; |
| 220 | |
| 221 | return err; |
| 222 | } |
| 223 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 224 | /* both for HW_PARAMS and HW_REFINE */ |
Takashi Iwai | 877211f | 2005-11-17 13:59:38 +0100 | [diff] [blame] | 225 | static int snd_pcm_ioctl_hw_params_compat(struct snd_pcm_substream *substream, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 226 | int refine, |
Takashi Iwai | 877211f | 2005-11-17 13:59:38 +0100 | [diff] [blame] | 227 | struct snd_pcm_hw_params32 __user *data32) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 228 | { |
Takashi Iwai | 877211f | 2005-11-17 13:59:38 +0100 | [diff] [blame] | 229 | struct snd_pcm_hw_params *data; |
| 230 | struct snd_pcm_runtime *runtime; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 231 | int err; |
| 232 | |
| 233 | if (! (runtime = substream->runtime)) |
| 234 | return -ENOTTY; |
| 235 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 236 | /* only fifo_size is different, so just copy all */ |
Li Zefan | ef44a1e | 2009-04-10 09:43:08 +0800 | [diff] [blame] | 237 | data = memdup_user(data32, sizeof(*data32)); |
| 238 | if (IS_ERR(data)) |
| 239 | return PTR_ERR(data); |
| 240 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 241 | if (refine) |
| 242 | err = snd_pcm_hw_refine(substream, data); |
| 243 | else |
| 244 | err = snd_pcm_hw_params(substream, data); |
| 245 | if (err < 0) |
| 246 | goto error; |
| 247 | if (copy_to_user(data32, data, sizeof(*data32)) || |
| 248 | put_user(data->fifo_size, &data32->fifo_size)) { |
| 249 | err = -EFAULT; |
| 250 | goto error; |
| 251 | } |
| 252 | |
Takashi Iwai | 7153a55 | 2005-08-25 19:51:47 +0200 | [diff] [blame] | 253 | if (! refine) { |
| 254 | unsigned int new_boundary = recalculate_boundary(runtime); |
| 255 | if (new_boundary) |
| 256 | runtime->boundary = new_boundary; |
| 257 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 258 | error: |
| 259 | kfree(data); |
| 260 | return err; |
| 261 | } |
| 262 | |
| 263 | |
| 264 | /* |
| 265 | */ |
Takashi Iwai | 877211f | 2005-11-17 13:59:38 +0100 | [diff] [blame] | 266 | struct snd_xferi32 { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 267 | s32 result; |
| 268 | u32 buf; |
| 269 | u32 frames; |
| 270 | }; |
| 271 | |
Takashi Iwai | 877211f | 2005-11-17 13:59:38 +0100 | [diff] [blame] | 272 | static int snd_pcm_ioctl_xferi_compat(struct snd_pcm_substream *substream, |
| 273 | int dir, struct snd_xferi32 __user *data32) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 274 | { |
| 275 | compat_caddr_t buf; |
| 276 | u32 frames; |
| 277 | int err; |
| 278 | |
| 279 | if (! substream->runtime) |
| 280 | return -ENOTTY; |
| 281 | if (substream->stream != dir) |
| 282 | return -EINVAL; |
| 283 | if (substream->runtime->status->state == SNDRV_PCM_STATE_OPEN) |
| 284 | return -EBADFD; |
| 285 | |
| 286 | if (get_user(buf, &data32->buf) || |
| 287 | get_user(frames, &data32->frames)) |
| 288 | return -EFAULT; |
| 289 | |
| 290 | if (dir == SNDRV_PCM_STREAM_PLAYBACK) |
| 291 | err = snd_pcm_lib_write(substream, compat_ptr(buf), frames); |
| 292 | else |
| 293 | err = snd_pcm_lib_read(substream, compat_ptr(buf), frames); |
| 294 | if (err < 0) |
| 295 | return err; |
| 296 | /* copy the result */ |
| 297 | if (put_user(err, &data32->result)) |
| 298 | return -EFAULT; |
| 299 | return 0; |
| 300 | } |
| 301 | |
| 302 | |
| 303 | /* snd_xfern needs remapping of bufs */ |
Takashi Iwai | 877211f | 2005-11-17 13:59:38 +0100 | [diff] [blame] | 304 | struct snd_xfern32 { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 305 | s32 result; |
| 306 | u32 bufs; /* this is void **; */ |
| 307 | u32 frames; |
| 308 | }; |
| 309 | |
| 310 | /* |
| 311 | * xfern ioctl nees to copy (up to) 128 pointers on stack. |
| 312 | * although we may pass the copied pointers through f_op->ioctl, but the ioctl |
| 313 | * handler there expands again the same 128 pointers on stack, so it is better |
| 314 | * to handle the function (calling pcm_readv/writev) directly in this handler. |
| 315 | */ |
Takashi Iwai | 877211f | 2005-11-17 13:59:38 +0100 | [diff] [blame] | 316 | static int snd_pcm_ioctl_xfern_compat(struct snd_pcm_substream *substream, |
| 317 | int dir, struct snd_xfern32 __user *data32) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 318 | { |
| 319 | compat_caddr_t buf; |
| 320 | compat_caddr_t __user *bufptr; |
| 321 | u32 frames; |
| 322 | void __user **bufs; |
| 323 | int err, ch, i; |
| 324 | |
| 325 | if (! substream->runtime) |
| 326 | return -ENOTTY; |
| 327 | if (substream->stream != dir) |
| 328 | return -EINVAL; |
| 329 | |
| 330 | if ((ch = substream->runtime->channels) > 128) |
| 331 | return -EINVAL; |
| 332 | if (get_user(buf, &data32->bufs) || |
| 333 | get_user(frames, &data32->frames)) |
| 334 | return -EFAULT; |
| 335 | bufptr = compat_ptr(buf); |
| 336 | bufs = kmalloc(sizeof(void __user *) * ch, GFP_KERNEL); |
| 337 | if (bufs == NULL) |
| 338 | return -ENOMEM; |
| 339 | for (i = 0; i < ch; i++) { |
| 340 | u32 ptr; |
| 341 | if (get_user(ptr, bufptr)) { |
| 342 | kfree(bufs); |
| 343 | return -EFAULT; |
| 344 | } |
| 345 | bufs[ch] = compat_ptr(ptr); |
| 346 | bufptr++; |
| 347 | } |
| 348 | if (dir == SNDRV_PCM_STREAM_PLAYBACK) |
| 349 | err = snd_pcm_lib_writev(substream, bufs, frames); |
| 350 | else |
| 351 | err = snd_pcm_lib_readv(substream, bufs, frames); |
| 352 | if (err >= 0) { |
| 353 | if (put_user(err, &data32->result)) |
| 354 | err = -EFAULT; |
| 355 | } |
| 356 | kfree(bufs); |
| 357 | return err; |
| 358 | } |
| 359 | |
| 360 | |
Takashi Iwai | 877211f | 2005-11-17 13:59:38 +0100 | [diff] [blame] | 361 | struct snd_pcm_mmap_status32 { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 362 | s32 state; |
| 363 | s32 pad1; |
| 364 | u32 hw_ptr; |
| 365 | struct compat_timespec tstamp; |
| 366 | s32 suspended_state; |
| 367 | } __attribute__((packed)); |
| 368 | |
Takashi Iwai | 877211f | 2005-11-17 13:59:38 +0100 | [diff] [blame] | 369 | struct snd_pcm_mmap_control32 { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 370 | u32 appl_ptr; |
| 371 | u32 avail_min; |
| 372 | }; |
| 373 | |
Takashi Iwai | 877211f | 2005-11-17 13:59:38 +0100 | [diff] [blame] | 374 | struct snd_pcm_sync_ptr32 { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 375 | u32 flags; |
| 376 | union { |
Takashi Iwai | 877211f | 2005-11-17 13:59:38 +0100 | [diff] [blame] | 377 | struct snd_pcm_mmap_status32 status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 378 | unsigned char reserved[64]; |
| 379 | } s; |
| 380 | union { |
Takashi Iwai | 877211f | 2005-11-17 13:59:38 +0100 | [diff] [blame] | 381 | struct snd_pcm_mmap_control32 control; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 382 | unsigned char reserved[64]; |
| 383 | } c; |
| 384 | } __attribute__((packed)); |
| 385 | |
Takashi Iwai | 877211f | 2005-11-17 13:59:38 +0100 | [diff] [blame] | 386 | static int snd_pcm_ioctl_sync_ptr_compat(struct snd_pcm_substream *substream, |
| 387 | struct snd_pcm_sync_ptr32 __user *src) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 388 | { |
Takashi Iwai | 877211f | 2005-11-17 13:59:38 +0100 | [diff] [blame] | 389 | struct snd_pcm_runtime *runtime = substream->runtime; |
| 390 | volatile struct snd_pcm_mmap_status *status; |
| 391 | volatile struct snd_pcm_mmap_control *control; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 392 | u32 sflags; |
Takashi Iwai | 877211f | 2005-11-17 13:59:38 +0100 | [diff] [blame] | 393 | struct snd_pcm_mmap_control scontrol; |
| 394 | struct snd_pcm_mmap_status sstatus; |
Takashi Iwai | b271131 | 2005-08-15 15:01:10 +0200 | [diff] [blame] | 395 | snd_pcm_uframes_t boundary; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 396 | int err; |
| 397 | |
Takashi Iwai | 7eaa943 | 2008-08-08 17:09:09 +0200 | [diff] [blame] | 398 | if (snd_BUG_ON(!runtime)) |
| 399 | return -EINVAL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 400 | |
| 401 | if (get_user(sflags, &src->flags) || |
| 402 | get_user(scontrol.appl_ptr, &src->c.control.appl_ptr) || |
| 403 | get_user(scontrol.avail_min, &src->c.control.avail_min)) |
| 404 | return -EFAULT; |
| 405 | if (sflags & SNDRV_PCM_SYNC_PTR_HWSYNC) { |
| 406 | err = snd_pcm_hwsync(substream); |
| 407 | if (err < 0) |
| 408 | return err; |
| 409 | } |
| 410 | status = runtime->status; |
| 411 | control = runtime->control; |
Takashi Iwai | b271131 | 2005-08-15 15:01:10 +0200 | [diff] [blame] | 412 | boundary = recalculate_boundary(runtime); |
Takashi Iwai | 7153a55 | 2005-08-25 19:51:47 +0200 | [diff] [blame] | 413 | if (! boundary) |
| 414 | boundary = 0x7fffffff; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 415 | snd_pcm_stream_lock_irq(substream); |
Takashi Iwai | b271131 | 2005-08-15 15:01:10 +0200 | [diff] [blame] | 416 | /* FIXME: we should consider the boundary for the sync from app */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 417 | if (!(sflags & SNDRV_PCM_SYNC_PTR_APPL)) |
| 418 | control->appl_ptr = scontrol.appl_ptr; |
| 419 | else |
Takashi Iwai | b271131 | 2005-08-15 15:01:10 +0200 | [diff] [blame] | 420 | scontrol.appl_ptr = control->appl_ptr % boundary; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 421 | if (!(sflags & SNDRV_PCM_SYNC_PTR_AVAIL_MIN)) |
| 422 | control->avail_min = scontrol.avail_min; |
| 423 | else |
| 424 | scontrol.avail_min = control->avail_min; |
| 425 | sstatus.state = status->state; |
Takashi Iwai | b271131 | 2005-08-15 15:01:10 +0200 | [diff] [blame] | 426 | sstatus.hw_ptr = status->hw_ptr % boundary; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 427 | sstatus.tstamp = status->tstamp; |
| 428 | sstatus.suspended_state = status->suspended_state; |
| 429 | snd_pcm_stream_unlock_irq(substream); |
| 430 | if (put_user(sstatus.state, &src->s.status.state) || |
| 431 | put_user(sstatus.hw_ptr, &src->s.status.hw_ptr) || |
| 432 | put_user(sstatus.tstamp.tv_sec, &src->s.status.tstamp.tv_sec) || |
| 433 | put_user(sstatus.tstamp.tv_nsec, &src->s.status.tstamp.tv_nsec) || |
| 434 | put_user(sstatus.suspended_state, &src->s.status.suspended_state) || |
| 435 | put_user(scontrol.appl_ptr, &src->c.control.appl_ptr) || |
| 436 | put_user(scontrol.avail_min, &src->c.control.avail_min)) |
| 437 | return -EFAULT; |
| 438 | |
| 439 | return 0; |
| 440 | } |
| 441 | |
| 442 | |
| 443 | /* |
| 444 | */ |
| 445 | enum { |
Takashi Iwai | 877211f | 2005-11-17 13:59:38 +0100 | [diff] [blame] | 446 | SNDRV_PCM_IOCTL_HW_REFINE32 = _IOWR('A', 0x10, struct snd_pcm_hw_params32), |
| 447 | SNDRV_PCM_IOCTL_HW_PARAMS32 = _IOWR('A', 0x11, struct snd_pcm_hw_params32), |
| 448 | SNDRV_PCM_IOCTL_SW_PARAMS32 = _IOWR('A', 0x13, struct snd_pcm_sw_params32), |
| 449 | SNDRV_PCM_IOCTL_STATUS32 = _IOR('A', 0x20, struct snd_pcm_status32), |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 450 | SNDRV_PCM_IOCTL_DELAY32 = _IOR('A', 0x21, s32), |
Takashi Iwai | 877211f | 2005-11-17 13:59:38 +0100 | [diff] [blame] | 451 | SNDRV_PCM_IOCTL_CHANNEL_INFO32 = _IOR('A', 0x32, struct snd_pcm_channel_info32), |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 452 | SNDRV_PCM_IOCTL_REWIND32 = _IOW('A', 0x46, u32), |
| 453 | SNDRV_PCM_IOCTL_FORWARD32 = _IOW('A', 0x49, u32), |
Takashi Iwai | 877211f | 2005-11-17 13:59:38 +0100 | [diff] [blame] | 454 | SNDRV_PCM_IOCTL_WRITEI_FRAMES32 = _IOW('A', 0x50, struct snd_xferi32), |
| 455 | SNDRV_PCM_IOCTL_READI_FRAMES32 = _IOR('A', 0x51, struct snd_xferi32), |
| 456 | SNDRV_PCM_IOCTL_WRITEN_FRAMES32 = _IOW('A', 0x52, struct snd_xfern32), |
| 457 | SNDRV_PCM_IOCTL_READN_FRAMES32 = _IOR('A', 0x53, struct snd_xfern32), |
| 458 | SNDRV_PCM_IOCTL_SYNC_PTR32 = _IOWR('A', 0x23, struct snd_pcm_sync_ptr32), |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 459 | |
| 460 | }; |
| 461 | |
| 462 | static long snd_pcm_ioctl_compat(struct file *file, unsigned int cmd, unsigned long arg) |
| 463 | { |
Takashi Iwai | 877211f | 2005-11-17 13:59:38 +0100 | [diff] [blame] | 464 | struct snd_pcm_file *pcm_file; |
| 465 | struct snd_pcm_substream *substream; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 466 | void __user *argp = compat_ptr(arg); |
| 467 | |
| 468 | pcm_file = file->private_data; |
| 469 | if (! pcm_file) |
| 470 | return -ENOTTY; |
| 471 | substream = pcm_file->substream; |
| 472 | if (! substream) |
| 473 | return -ENOTTY; |
| 474 | |
| 475 | /* |
| 476 | * When PCM is used on 32bit mode, we need to disable |
| 477 | * mmap of PCM status/control records because of the size |
| 478 | * incompatibility. |
| 479 | */ |
Takashi Iwai | 548a648 | 2006-07-31 16:51:51 +0200 | [diff] [blame] | 480 | pcm_file->no_compat_mmap = 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 481 | |
| 482 | switch (cmd) { |
| 483 | case SNDRV_PCM_IOCTL_PVERSION: |
| 484 | case SNDRV_PCM_IOCTL_INFO: |
Takashi Iwai | 5a7f261 | 2007-12-17 11:44:25 +0100 | [diff] [blame] | 485 | case SNDRV_PCM_IOCTL_TSTAMP: |
Takashi Iwai | 6b587ef | 2007-12-14 12:10:26 +0100 | [diff] [blame] | 486 | case SNDRV_PCM_IOCTL_TTSTAMP: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 487 | case SNDRV_PCM_IOCTL_HWSYNC: |
| 488 | case SNDRV_PCM_IOCTL_PREPARE: |
| 489 | case SNDRV_PCM_IOCTL_RESET: |
| 490 | case SNDRV_PCM_IOCTL_START: |
| 491 | case SNDRV_PCM_IOCTL_DROP: |
| 492 | case SNDRV_PCM_IOCTL_DRAIN: |
| 493 | case SNDRV_PCM_IOCTL_PAUSE: |
| 494 | case SNDRV_PCM_IOCTL_HW_FREE: |
| 495 | case SNDRV_PCM_IOCTL_RESUME: |
| 496 | case SNDRV_PCM_IOCTL_XRUN: |
| 497 | case SNDRV_PCM_IOCTL_LINK: |
| 498 | case SNDRV_PCM_IOCTL_UNLINK: |
| 499 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) |
Takashi Iwai | 0df63e4 | 2006-04-28 15:13:41 +0200 | [diff] [blame] | 500 | return snd_pcm_playback_ioctl1(file, substream, cmd, argp); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 501 | else |
Takashi Iwai | 0df63e4 | 2006-04-28 15:13:41 +0200 | [diff] [blame] | 502 | return snd_pcm_capture_ioctl1(file, substream, cmd, argp); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 503 | case SNDRV_PCM_IOCTL_HW_REFINE32: |
| 504 | return snd_pcm_ioctl_hw_params_compat(substream, 1, argp); |
| 505 | case SNDRV_PCM_IOCTL_HW_PARAMS32: |
| 506 | return snd_pcm_ioctl_hw_params_compat(substream, 0, argp); |
| 507 | case SNDRV_PCM_IOCTL_SW_PARAMS32: |
| 508 | return snd_pcm_ioctl_sw_params_compat(substream, argp); |
| 509 | case SNDRV_PCM_IOCTL_STATUS32: |
| 510 | return snd_pcm_status_user_compat(substream, argp); |
| 511 | case SNDRV_PCM_IOCTL_SYNC_PTR32: |
| 512 | return snd_pcm_ioctl_sync_ptr_compat(substream, argp); |
| 513 | case SNDRV_PCM_IOCTL_CHANNEL_INFO32: |
| 514 | return snd_pcm_ioctl_channel_info_compat(substream, argp); |
| 515 | case SNDRV_PCM_IOCTL_WRITEI_FRAMES32: |
| 516 | return snd_pcm_ioctl_xferi_compat(substream, SNDRV_PCM_STREAM_PLAYBACK, argp); |
| 517 | case SNDRV_PCM_IOCTL_READI_FRAMES32: |
| 518 | return snd_pcm_ioctl_xferi_compat(substream, SNDRV_PCM_STREAM_CAPTURE, argp); |
| 519 | case SNDRV_PCM_IOCTL_WRITEN_FRAMES32: |
| 520 | return snd_pcm_ioctl_xfern_compat(substream, SNDRV_PCM_STREAM_PLAYBACK, argp); |
| 521 | case SNDRV_PCM_IOCTL_READN_FRAMES32: |
| 522 | return snd_pcm_ioctl_xfern_compat(substream, SNDRV_PCM_STREAM_CAPTURE, argp); |
| 523 | case SNDRV_PCM_IOCTL_DELAY32: |
| 524 | return snd_pcm_ioctl_delay_compat(substream, argp); |
| 525 | case SNDRV_PCM_IOCTL_REWIND32: |
| 526 | return snd_pcm_ioctl_rewind_compat(substream, argp); |
| 527 | case SNDRV_PCM_IOCTL_FORWARD32: |
| 528 | return snd_pcm_ioctl_forward_compat(substream, argp); |
| 529 | } |
| 530 | |
| 531 | return -ENOIOCTLCMD; |
| 532 | } |