Commit | Line | Data |
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523f1dce | 1 | /* |
8d048841 | 2 | * Copyright (c) 2006-2008 Daniel Mack, Karsten Wiese |
523f1dce DM |
3 | * |
4 | * This program is free software; you can redistribute it and/or modify | |
5 | * it under the terms of the GNU General Public License as published by | |
6 | * the Free Software Foundation; either version 2 of the License, or | |
7 | * (at your option) any later version. | |
8 | * | |
9 | * This program is distributed in the hope that it will be useful, | |
10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
12 | * GNU General Public License for more details. | |
13 | * | |
14 | * You should have received a copy of the GNU General Public License | |
15 | * along with this program; if not, write to the Free Software | |
16 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
17 | */ | |
18 | ||
f1f6b8f6 | 19 | #include <linux/device.h> |
e431cf45 | 20 | #include <linux/spinlock.h> |
5a0e3ad6 | 21 | #include <linux/slab.h> |
523f1dce | 22 | #include <linux/init.h> |
523f1dce | 23 | #include <linux/usb.h> |
523f1dce | 24 | #include <sound/core.h> |
523f1dce | 25 | #include <sound/pcm.h> |
523f1dce | 26 | |
936e7d03 DM |
27 | #include "device.h" |
28 | #include "audio.h" | |
523f1dce DM |
29 | |
30 | #define N_URBS 32 | |
31 | #define CLOCK_DRIFT_TOLERANCE 5 | |
32 | #define FRAMES_PER_URB 8 | |
33 | #define BYTES_PER_FRAME 512 | |
34 | #define CHANNELS_PER_STREAM 2 | |
35 | #define BYTES_PER_SAMPLE 3 | |
36 | #define BYTES_PER_SAMPLE_USB 4 | |
37 | #define MAX_BUFFER_SIZE (128*1024) | |
6e9fc6bd DM |
38 | #define MAX_ENDPOINT_SIZE 512 |
39 | ||
523f1dce DM |
40 | #define ENDPOINT_CAPTURE 2 |
41 | #define ENDPOINT_PLAYBACK 6 | |
42 | ||
1c8470ce DM |
43 | #define MAKE_CHECKBYTE(cdev,stream,i) \ |
44 | (stream << 1) | (~(i / (cdev->n_streams * BYTES_PER_SAMPLE_USB)) & 1) | |
523f1dce DM |
45 | |
46 | static struct snd_pcm_hardware snd_usb_caiaq_pcm_hardware = { | |
9318dce5 | 47 | .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED | |
523f1dce DM |
48 | SNDRV_PCM_INFO_BLOCK_TRANSFER), |
49 | .formats = SNDRV_PCM_FMTBIT_S24_3BE, | |
9318dce5 | 50 | .rates = (SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 | |
523f1dce DM |
51 | SNDRV_PCM_RATE_96000), |
52 | .rate_min = 44100, | |
53 | .rate_max = 0, /* will overwrite later */ | |
54 | .channels_min = CHANNELS_PER_STREAM, | |
55 | .channels_max = CHANNELS_PER_STREAM, | |
56 | .buffer_bytes_max = MAX_BUFFER_SIZE, | |
09189ac7 | 57 | .period_bytes_min = 128, |
523f1dce DM |
58 | .period_bytes_max = MAX_BUFFER_SIZE, |
59 | .periods_min = 1, | |
60 | .periods_max = 1024, | |
61 | }; | |
62 | ||
63 | static void | |
1c8470ce | 64 | activate_substream(struct snd_usb_caiaqdev *cdev, |
523f1dce DM |
65 | struct snd_pcm_substream *sub) |
66 | { | |
1c8470ce | 67 | spin_lock(&cdev->spinlock); |
ac9dd9d3 | 68 | |
523f1dce | 69 | if (sub->stream == SNDRV_PCM_STREAM_PLAYBACK) |
1c8470ce | 70 | cdev->sub_playback[sub->number] = sub; |
523f1dce | 71 | else |
1c8470ce | 72 | cdev->sub_capture[sub->number] = sub; |
ac9dd9d3 | 73 | |
1c8470ce | 74 | spin_unlock(&cdev->spinlock); |
523f1dce DM |
75 | } |
76 | ||
9318dce5 | 77 | static void |
1c8470ce | 78 | deactivate_substream(struct snd_usb_caiaqdev *cdev, |
523f1dce DM |
79 | struct snd_pcm_substream *sub) |
80 | { | |
8d048841 | 81 | unsigned long flags; |
1c8470ce | 82 | spin_lock_irqsave(&cdev->spinlock, flags); |
8d048841 | 83 | |
523f1dce | 84 | if (sub->stream == SNDRV_PCM_STREAM_PLAYBACK) |
1c8470ce | 85 | cdev->sub_playback[sub->number] = NULL; |
523f1dce | 86 | else |
1c8470ce | 87 | cdev->sub_capture[sub->number] = NULL; |
8d048841 | 88 | |
1c8470ce | 89 | spin_unlock_irqrestore(&cdev->spinlock, flags); |
523f1dce DM |
90 | } |
91 | ||
92 | static int | |
93 | all_substreams_zero(struct snd_pcm_substream **subs) | |
94 | { | |
95 | int i; | |
96 | for (i = 0; i < MAX_STREAMS; i++) | |
97 | if (subs[i] != NULL) | |
98 | return 0; | |
99 | return 1; | |
100 | } | |
101 | ||
1c8470ce | 102 | static int stream_start(struct snd_usb_caiaqdev *cdev) |
523f1dce DM |
103 | { |
104 | int i, ret; | |
f1f6b8f6 | 105 | struct device *dev = caiaqdev_to_dev(cdev); |
523f1dce | 106 | |
f1f6b8f6 | 107 | dev_dbg(dev, "%s(%p)\n", __func__, cdev); |
8d048841 | 108 | |
1c8470ce | 109 | if (cdev->streaming) |
523f1dce | 110 | return -EINVAL; |
523f1dce | 111 | |
1c8470ce DM |
112 | memset(cdev->sub_playback, 0, sizeof(cdev->sub_playback)); |
113 | memset(cdev->sub_capture, 0, sizeof(cdev->sub_capture)); | |
114 | cdev->input_panic = 0; | |
115 | cdev->output_panic = 0; | |
116 | cdev->first_packet = 4; | |
117 | cdev->streaming = 1; | |
118 | cdev->warned = 0; | |
523f1dce DM |
119 | |
120 | for (i = 0; i < N_URBS; i++) { | |
1c8470ce | 121 | ret = usb_submit_urb(cdev->data_urbs_in[i], GFP_ATOMIC); |
523f1dce | 122 | if (ret) { |
f1f6b8f6 DM |
123 | dev_err(dev, "unable to trigger read #%d! (ret %d)\n", |
124 | i, ret); | |
1c8470ce | 125 | cdev->streaming = 0; |
523f1dce DM |
126 | return -EPIPE; |
127 | } | |
128 | } | |
9318dce5 | 129 | |
523f1dce DM |
130 | return 0; |
131 | } | |
132 | ||
1c8470ce | 133 | static void stream_stop(struct snd_usb_caiaqdev *cdev) |
523f1dce DM |
134 | { |
135 | int i; | |
f1f6b8f6 | 136 | struct device *dev = caiaqdev_to_dev(cdev); |
8d048841 | 137 | |
f1f6b8f6 | 138 | dev_dbg(dev, "%s(%p)\n", __func__, cdev); |
1c8470ce | 139 | if (!cdev->streaming) |
523f1dce | 140 | return; |
9318dce5 | 141 | |
1c8470ce | 142 | cdev->streaming = 0; |
8d048841 | 143 | |
523f1dce | 144 | for (i = 0; i < N_URBS; i++) { |
1c8470ce | 145 | usb_kill_urb(cdev->data_urbs_in[i]); |
da6094ea | 146 | |
1c8470ce DM |
147 | if (test_bit(i, &cdev->outurb_active_mask)) |
148 | usb_kill_urb(cdev->data_urbs_out[i]); | |
523f1dce | 149 | } |
da6094ea | 150 | |
1c8470ce | 151 | cdev->outurb_active_mask = 0; |
523f1dce DM |
152 | } |
153 | ||
154 | static int snd_usb_caiaq_substream_open(struct snd_pcm_substream *substream) | |
155 | { | |
1c8470ce | 156 | struct snd_usb_caiaqdev *cdev = snd_pcm_substream_chip(substream); |
f1f6b8f6 DM |
157 | struct device *dev = caiaqdev_to_dev(cdev); |
158 | ||
159 | dev_dbg(dev, "%s(%p)\n", __func__, substream); | |
1c8470ce | 160 | substream->runtime->hw = cdev->pcm_info; |
523f1dce | 161 | snd_pcm_limit_hw_rates(substream->runtime); |
f1f6b8f6 | 162 | |
523f1dce DM |
163 | return 0; |
164 | } | |
165 | ||
166 | static int snd_usb_caiaq_substream_close(struct snd_pcm_substream *substream) | |
167 | { | |
1c8470ce | 168 | struct snd_usb_caiaqdev *cdev = snd_pcm_substream_chip(substream); |
f1f6b8f6 | 169 | struct device *dev = caiaqdev_to_dev(cdev); |
523f1dce | 170 | |
f1f6b8f6 | 171 | dev_dbg(dev, "%s(%p)\n", __func__, substream); |
1c8470ce DM |
172 | if (all_substreams_zero(cdev->sub_playback) && |
173 | all_substreams_zero(cdev->sub_capture)) { | |
9318dce5 | 174 | /* when the last client has stopped streaming, |
523f1dce | 175 | * all sample rates are allowed again */ |
1c8470ce DM |
176 | stream_stop(cdev); |
177 | cdev->pcm_info.rates = cdev->samplerates; | |
523f1dce | 178 | } |
8d048841 | 179 | |
523f1dce DM |
180 | return 0; |
181 | } | |
182 | ||
183 | static int snd_usb_caiaq_pcm_hw_params(struct snd_pcm_substream *sub, | |
15c5ab60 | 184 | struct snd_pcm_hw_params *hw_params) |
523f1dce | 185 | { |
fc76f863 AO |
186 | return snd_pcm_lib_alloc_vmalloc_buffer(sub, |
187 | params_buffer_bytes(hw_params)); | |
523f1dce DM |
188 | } |
189 | ||
190 | static int snd_usb_caiaq_pcm_hw_free(struct snd_pcm_substream *sub) | |
191 | { | |
1c8470ce | 192 | struct snd_usb_caiaqdev *cdev = snd_pcm_substream_chip(sub); |
1c8470ce | 193 | deactivate_substream(cdev, sub); |
fc76f863 | 194 | return snd_pcm_lib_free_vmalloc_buffer(sub); |
523f1dce DM |
195 | } |
196 | ||
197 | /* this should probably go upstream */ | |
198 | #if SNDRV_PCM_RATE_5512 != 1 << 0 || SNDRV_PCM_RATE_192000 != 1 << 12 | |
199 | #error "Change this table" | |
200 | #endif | |
201 | ||
202 | static unsigned int rates[] = { 5512, 8000, 11025, 16000, 22050, 32000, 44100, | |
15c5ab60 | 203 | 48000, 64000, 88200, 96000, 176400, 192000 }; |
523f1dce DM |
204 | |
205 | static int snd_usb_caiaq_pcm_prepare(struct snd_pcm_substream *substream) | |
206 | { | |
207 | int bytes_per_sample, bpp, ret, i; | |
208 | int index = substream->number; | |
1c8470ce | 209 | struct snd_usb_caiaqdev *cdev = snd_pcm_substream_chip(substream); |
523f1dce | 210 | struct snd_pcm_runtime *runtime = substream->runtime; |
f1f6b8f6 | 211 | struct device *dev = caiaqdev_to_dev(cdev); |
523f1dce | 212 | |
f1f6b8f6 | 213 | dev_dbg(dev, "%s(%p)\n", __func__, substream); |
9318dce5 | 214 | |
a9b487fa | 215 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { |
15c5ab60 DM |
216 | int out_pos; |
217 | ||
1c8470ce | 218 | switch (cdev->spec.data_alignment) { |
15c5ab60 DM |
219 | case 0: |
220 | case 2: | |
221 | out_pos = BYTES_PER_SAMPLE + 1; | |
222 | break; | |
223 | case 3: | |
224 | default: | |
225 | out_pos = 0; | |
226 | break; | |
227 | } | |
228 | ||
1c8470ce DM |
229 | cdev->period_out_count[index] = out_pos; |
230 | cdev->audio_out_buf_pos[index] = out_pos; | |
a9b487fa | 231 | } else { |
15c5ab60 DM |
232 | int in_pos; |
233 | ||
1c8470ce | 234 | switch (cdev->spec.data_alignment) { |
15c5ab60 DM |
235 | case 0: |
236 | in_pos = BYTES_PER_SAMPLE + 2; | |
237 | break; | |
238 | case 2: | |
239 | in_pos = BYTES_PER_SAMPLE; | |
240 | break; | |
241 | case 3: | |
242 | default: | |
243 | in_pos = 0; | |
244 | break; | |
245 | } | |
246 | ||
1c8470ce DM |
247 | cdev->period_in_count[index] = in_pos; |
248 | cdev->audio_in_buf_pos[index] = in_pos; | |
a9b487fa DM |
249 | } |
250 | ||
1c8470ce | 251 | if (cdev->streaming) |
523f1dce | 252 | return 0; |
9318dce5 | 253 | |
523f1dce DM |
254 | /* the first client that opens a stream defines the sample rate |
255 | * setting for all subsequent calls, until the last client closed. */ | |
256 | for (i=0; i < ARRAY_SIZE(rates); i++) | |
257 | if (runtime->rate == rates[i]) | |
1c8470ce | 258 | cdev->pcm_info.rates = 1 << i; |
9318dce5 | 259 | |
523f1dce DM |
260 | snd_pcm_limit_hw_rates(runtime); |
261 | ||
262 | bytes_per_sample = BYTES_PER_SAMPLE; | |
1c8470ce | 263 | if (cdev->spec.data_alignment >= 2) |
523f1dce | 264 | bytes_per_sample++; |
9318dce5 | 265 | |
523f1dce | 266 | bpp = ((runtime->rate / 8000) + CLOCK_DRIFT_TOLERANCE) |
1c8470ce | 267 | * bytes_per_sample * CHANNELS_PER_STREAM * cdev->n_streams; |
6e9fc6bd DM |
268 | |
269 | if (bpp > MAX_ENDPOINT_SIZE) | |
270 | bpp = MAX_ENDPOINT_SIZE; | |
271 | ||
1c8470ce | 272 | ret = snd_usb_caiaq_set_audio_params(cdev, runtime->rate, |
523f1dce DM |
273 | runtime->sample_bits, bpp); |
274 | if (ret) | |
275 | return ret; | |
276 | ||
1c8470ce | 277 | ret = stream_start(cdev); |
523f1dce DM |
278 | if (ret) |
279 | return ret; | |
9318dce5 | 280 | |
1c8470ce DM |
281 | cdev->output_running = 0; |
282 | wait_event_timeout(cdev->prepare_wait_queue, cdev->output_running, HZ); | |
283 | if (!cdev->output_running) { | |
284 | stream_stop(cdev); | |
523f1dce DM |
285 | return -EPIPE; |
286 | } | |
287 | ||
288 | return 0; | |
289 | } | |
290 | ||
291 | static int snd_usb_caiaq_pcm_trigger(struct snd_pcm_substream *sub, int cmd) | |
292 | { | |
1c8470ce | 293 | struct snd_usb_caiaqdev *cdev = snd_pcm_substream_chip(sub); |
f1f6b8f6 | 294 | struct device *dev = caiaqdev_to_dev(cdev); |
523f1dce | 295 | |
f1f6b8f6 | 296 | dev_dbg(dev, "%s(%p) cmd %d\n", __func__, sub, cmd); |
15c5ab60 | 297 | |
523f1dce DM |
298 | switch (cmd) { |
299 | case SNDRV_PCM_TRIGGER_START: | |
300 | case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: | |
1c8470ce | 301 | activate_substream(cdev, sub); |
523f1dce DM |
302 | break; |
303 | case SNDRV_PCM_TRIGGER_STOP: | |
304 | case SNDRV_PCM_TRIGGER_PAUSE_PUSH: | |
1c8470ce | 305 | deactivate_substream(cdev, sub); |
523f1dce DM |
306 | break; |
307 | default: | |
308 | return -EINVAL; | |
309 | } | |
310 | ||
311 | return 0; | |
312 | } | |
313 | ||
314 | static snd_pcm_uframes_t | |
315 | snd_usb_caiaq_pcm_pointer(struct snd_pcm_substream *sub) | |
316 | { | |
317 | int index = sub->number; | |
1c8470ce | 318 | struct snd_usb_caiaqdev *cdev = snd_pcm_substream_chip(sub); |
3702b082 MH |
319 | snd_pcm_uframes_t ptr; |
320 | ||
1c8470ce | 321 | spin_lock(&cdev->spinlock); |
523f1dce | 322 | |
1c8470ce | 323 | if (cdev->input_panic || cdev->output_panic) { |
3702b082 | 324 | ptr = SNDRV_PCM_POS_XRUN; |
cb74eb15 MH |
325 | goto unlock; |
326 | } | |
523f1dce DM |
327 | |
328 | if (sub->stream == SNDRV_PCM_STREAM_PLAYBACK) | |
3702b082 | 329 | ptr = bytes_to_frames(sub->runtime, |
1c8470ce | 330 | cdev->audio_out_buf_pos[index]); |
523f1dce | 331 | else |
3702b082 | 332 | ptr = bytes_to_frames(sub->runtime, |
1c8470ce | 333 | cdev->audio_in_buf_pos[index]); |
3702b082 | 334 | |
cb74eb15 | 335 | unlock: |
1c8470ce | 336 | spin_unlock(&cdev->spinlock); |
3702b082 | 337 | return ptr; |
523f1dce DM |
338 | } |
339 | ||
340 | /* operators for both playback and capture */ | |
341 | static struct snd_pcm_ops snd_usb_caiaq_ops = { | |
342 | .open = snd_usb_caiaq_substream_open, | |
343 | .close = snd_usb_caiaq_substream_close, | |
344 | .ioctl = snd_pcm_lib_ioctl, | |
345 | .hw_params = snd_usb_caiaq_pcm_hw_params, | |
346 | .hw_free = snd_usb_caiaq_pcm_hw_free, | |
347 | .prepare = snd_usb_caiaq_pcm_prepare, | |
348 | .trigger = snd_usb_caiaq_pcm_trigger, | |
fc76f863 AO |
349 | .pointer = snd_usb_caiaq_pcm_pointer, |
350 | .page = snd_pcm_lib_get_vmalloc_page, | |
351 | .mmap = snd_pcm_lib_mmap_vmalloc, | |
523f1dce | 352 | }; |
9318dce5 | 353 | |
1c8470ce | 354 | static void check_for_elapsed_periods(struct snd_usb_caiaqdev *cdev, |
523f1dce DM |
355 | struct snd_pcm_substream **subs) |
356 | { | |
357 | int stream, pb, *cnt; | |
358 | struct snd_pcm_substream *sub; | |
359 | ||
1c8470ce | 360 | for (stream = 0; stream < cdev->n_streams; stream++) { |
523f1dce DM |
361 | sub = subs[stream]; |
362 | if (!sub) | |
363 | continue; | |
364 | ||
a9b487fa | 365 | pb = snd_pcm_lib_period_bytes(sub); |
523f1dce | 366 | cnt = (sub->stream == SNDRV_PCM_STREAM_PLAYBACK) ? |
1c8470ce DM |
367 | &cdev->period_out_count[stream] : |
368 | &cdev->period_in_count[stream]; | |
523f1dce DM |
369 | |
370 | if (*cnt >= pb) { | |
371 | snd_pcm_period_elapsed(sub); | |
372 | *cnt %= pb; | |
373 | } | |
374 | } | |
375 | } | |
376 | ||
1c8470ce | 377 | static void read_in_urb_mode0(struct snd_usb_caiaqdev *cdev, |
523f1dce DM |
378 | const struct urb *urb, |
379 | const struct usb_iso_packet_descriptor *iso) | |
380 | { | |
381 | unsigned char *usb_buf = urb->transfer_buffer + iso->offset; | |
382 | struct snd_pcm_substream *sub; | |
383 | int stream, i; | |
384 | ||
1c8470ce | 385 | if (all_substreams_zero(cdev->sub_capture)) |
523f1dce DM |
386 | return; |
387 | ||
523f1dce | 388 | for (i = 0; i < iso->actual_length;) { |
1c8470ce DM |
389 | for (stream = 0; stream < cdev->n_streams; stream++, i++) { |
390 | sub = cdev->sub_capture[stream]; | |
523f1dce DM |
391 | if (sub) { |
392 | struct snd_pcm_runtime *rt = sub->runtime; | |
393 | char *audio_buf = rt->dma_area; | |
394 | int sz = frames_to_bytes(rt, rt->buffer_size); | |
1c8470ce | 395 | audio_buf[cdev->audio_in_buf_pos[stream]++] |
523f1dce | 396 | = usb_buf[i]; |
1c8470ce DM |
397 | cdev->period_in_count[stream]++; |
398 | if (cdev->audio_in_buf_pos[stream] == sz) | |
399 | cdev->audio_in_buf_pos[stream] = 0; | |
523f1dce DM |
400 | } |
401 | } | |
402 | } | |
523f1dce DM |
403 | } |
404 | ||
1c8470ce | 405 | static void read_in_urb_mode2(struct snd_usb_caiaqdev *cdev, |
523f1dce DM |
406 | const struct urb *urb, |
407 | const struct usb_iso_packet_descriptor *iso) | |
408 | { | |
409 | unsigned char *usb_buf = urb->transfer_buffer + iso->offset; | |
410 | unsigned char check_byte; | |
411 | struct snd_pcm_substream *sub; | |
412 | int stream, i; | |
413 | ||
523f1dce | 414 | for (i = 0; i < iso->actual_length;) { |
1c8470ce | 415 | if (i % (cdev->n_streams * BYTES_PER_SAMPLE_USB) == 0) { |
9318dce5 | 416 | for (stream = 0; |
1c8470ce | 417 | stream < cdev->n_streams; |
523f1dce | 418 | stream++, i++) { |
1c8470ce | 419 | if (cdev->first_packet) |
523f1dce DM |
420 | continue; |
421 | ||
1c8470ce | 422 | check_byte = MAKE_CHECKBYTE(cdev, stream, i); |
9318dce5 | 423 | |
523f1dce | 424 | if ((usb_buf[i] & 0x3f) != check_byte) |
1c8470ce | 425 | cdev->input_panic = 1; |
523f1dce DM |
426 | |
427 | if (usb_buf[i] & 0x80) | |
1c8470ce | 428 | cdev->output_panic = 1; |
523f1dce DM |
429 | } |
430 | } | |
1c8470ce | 431 | cdev->first_packet = 0; |
523f1dce | 432 | |
1c8470ce DM |
433 | for (stream = 0; stream < cdev->n_streams; stream++, i++) { |
434 | sub = cdev->sub_capture[stream]; | |
435 | if (cdev->input_panic) | |
9311c9b4 DM |
436 | usb_buf[i] = 0; |
437 | ||
523f1dce DM |
438 | if (sub) { |
439 | struct snd_pcm_runtime *rt = sub->runtime; | |
440 | char *audio_buf = rt->dma_area; | |
441 | int sz = frames_to_bytes(rt, rt->buffer_size); | |
1c8470ce | 442 | audio_buf[cdev->audio_in_buf_pos[stream]++] = |
a971c3d4 | 443 | usb_buf[i]; |
1c8470ce DM |
444 | cdev->period_in_count[stream]++; |
445 | if (cdev->audio_in_buf_pos[stream] == sz) | |
446 | cdev->audio_in_buf_pos[stream] = 0; | |
523f1dce DM |
447 | } |
448 | } | |
449 | } | |
523f1dce DM |
450 | } |
451 | ||
1c8470ce | 452 | static void read_in_urb_mode3(struct snd_usb_caiaqdev *cdev, |
15c5ab60 DM |
453 | const struct urb *urb, |
454 | const struct usb_iso_packet_descriptor *iso) | |
455 | { | |
456 | unsigned char *usb_buf = urb->transfer_buffer + iso->offset; | |
f1f6b8f6 | 457 | struct device *dev = caiaqdev_to_dev(cdev); |
15c5ab60 DM |
458 | int stream, i; |
459 | ||
460 | /* paranoia check */ | |
461 | if (iso->actual_length % (BYTES_PER_SAMPLE_USB * CHANNELS_PER_STREAM)) | |
462 | return; | |
463 | ||
464 | for (i = 0; i < iso->actual_length;) { | |
1c8470ce DM |
465 | for (stream = 0; stream < cdev->n_streams; stream++) { |
466 | struct snd_pcm_substream *sub = cdev->sub_capture[stream]; | |
15c5ab60 DM |
467 | char *audio_buf = NULL; |
468 | int c, n, sz = 0; | |
469 | ||
1c8470ce | 470 | if (sub && !cdev->input_panic) { |
15c5ab60 DM |
471 | struct snd_pcm_runtime *rt = sub->runtime; |
472 | audio_buf = rt->dma_area; | |
473 | sz = frames_to_bytes(rt, rt->buffer_size); | |
474 | } | |
475 | ||
476 | for (c = 0; c < CHANNELS_PER_STREAM; c++) { | |
477 | /* 3 audio data bytes, followed by 1 check byte */ | |
478 | if (audio_buf) { | |
479 | for (n = 0; n < BYTES_PER_SAMPLE; n++) { | |
1c8470ce | 480 | audio_buf[cdev->audio_in_buf_pos[stream]++] = usb_buf[i+n]; |
15c5ab60 | 481 | |
1c8470ce DM |
482 | if (cdev->audio_in_buf_pos[stream] == sz) |
483 | cdev->audio_in_buf_pos[stream] = 0; | |
15c5ab60 DM |
484 | } |
485 | ||
1c8470ce | 486 | cdev->period_in_count[stream] += BYTES_PER_SAMPLE; |
15c5ab60 DM |
487 | } |
488 | ||
489 | i += BYTES_PER_SAMPLE; | |
490 | ||
491 | if (usb_buf[i] != ((stream << 1) | c) && | |
1c8470ce DM |
492 | !cdev->first_packet) { |
493 | if (!cdev->input_panic) | |
f1f6b8f6 DM |
494 | dev_warn(dev, " EXPECTED: %02x got %02x, c %d, stream %d, i %d\n", |
495 | ((stream << 1) | c), usb_buf[i], c, stream, i); | |
1c8470ce | 496 | cdev->input_panic = 1; |
15c5ab60 DM |
497 | } |
498 | ||
499 | i++; | |
500 | } | |
501 | } | |
502 | } | |
503 | ||
1c8470ce DM |
504 | if (cdev->first_packet > 0) |
505 | cdev->first_packet--; | |
15c5ab60 DM |
506 | } |
507 | ||
1c8470ce | 508 | static void read_in_urb(struct snd_usb_caiaqdev *cdev, |
523f1dce DM |
509 | const struct urb *urb, |
510 | const struct usb_iso_packet_descriptor *iso) | |
511 | { | |
f1f6b8f6 DM |
512 | struct device *dev = caiaqdev_to_dev(cdev); |
513 | ||
1c8470ce | 514 | if (!cdev->streaming) |
523f1dce DM |
515 | return; |
516 | ||
1c8470ce | 517 | if (iso->actual_length < cdev->bpp) |
9311c9b4 DM |
518 | return; |
519 | ||
1c8470ce | 520 | switch (cdev->spec.data_alignment) { |
523f1dce | 521 | case 0: |
1c8470ce | 522 | read_in_urb_mode0(cdev, urb, iso); |
523f1dce DM |
523 | break; |
524 | case 2: | |
1c8470ce | 525 | read_in_urb_mode2(cdev, urb, iso); |
523f1dce | 526 | break; |
15c5ab60 | 527 | case 3: |
1c8470ce | 528 | read_in_urb_mode3(cdev, urb, iso); |
15c5ab60 | 529 | break; |
523f1dce DM |
530 | } |
531 | ||
1c8470ce | 532 | if ((cdev->input_panic || cdev->output_panic) && !cdev->warned) { |
f1f6b8f6 | 533 | dev_warn(dev, "streaming error detected %s %s\n", |
1c8470ce DM |
534 | cdev->input_panic ? "(input)" : "", |
535 | cdev->output_panic ? "(output)" : ""); | |
536 | cdev->warned = 1; | |
523f1dce | 537 | } |
523f1dce DM |
538 | } |
539 | ||
1c8470ce | 540 | static void fill_out_urb_mode_0(struct snd_usb_caiaqdev *cdev, |
15c5ab60 DM |
541 | struct urb *urb, |
542 | const struct usb_iso_packet_descriptor *iso) | |
523f1dce DM |
543 | { |
544 | unsigned char *usb_buf = urb->transfer_buffer + iso->offset; | |
545 | struct snd_pcm_substream *sub; | |
546 | int stream, i; | |
9318dce5 | 547 | |
523f1dce | 548 | for (i = 0; i < iso->length;) { |
1c8470ce DM |
549 | for (stream = 0; stream < cdev->n_streams; stream++, i++) { |
550 | sub = cdev->sub_playback[stream]; | |
523f1dce DM |
551 | if (sub) { |
552 | struct snd_pcm_runtime *rt = sub->runtime; | |
553 | char *audio_buf = rt->dma_area; | |
554 | int sz = frames_to_bytes(rt, rt->buffer_size); | |
a971c3d4 | 555 | usb_buf[i] = |
1c8470ce DM |
556 | audio_buf[cdev->audio_out_buf_pos[stream]]; |
557 | cdev->period_out_count[stream]++; | |
558 | cdev->audio_out_buf_pos[stream]++; | |
559 | if (cdev->audio_out_buf_pos[stream] == sz) | |
560 | cdev->audio_out_buf_pos[stream] = 0; | |
523f1dce | 561 | } else |
a971c3d4 KW |
562 | usb_buf[i] = 0; |
563 | } | |
523f1dce DM |
564 | |
565 | /* fill in the check bytes */ | |
1c8470ce DM |
566 | if (cdev->spec.data_alignment == 2 && |
567 | i % (cdev->n_streams * BYTES_PER_SAMPLE_USB) == | |
568 | (cdev->n_streams * CHANNELS_PER_STREAM)) | |
569 | for (stream = 0; stream < cdev->n_streams; stream++, i++) | |
570 | usb_buf[i] = MAKE_CHECKBYTE(cdev, stream, i); | |
15c5ab60 DM |
571 | } |
572 | } | |
573 | ||
1c8470ce | 574 | static void fill_out_urb_mode_3(struct snd_usb_caiaqdev *cdev, |
15c5ab60 DM |
575 | struct urb *urb, |
576 | const struct usb_iso_packet_descriptor *iso) | |
577 | { | |
578 | unsigned char *usb_buf = urb->transfer_buffer + iso->offset; | |
579 | int stream, i; | |
580 | ||
581 | for (i = 0; i < iso->length;) { | |
1c8470ce DM |
582 | for (stream = 0; stream < cdev->n_streams; stream++) { |
583 | struct snd_pcm_substream *sub = cdev->sub_playback[stream]; | |
15c5ab60 DM |
584 | char *audio_buf = NULL; |
585 | int c, n, sz = 0; | |
586 | ||
587 | if (sub) { | |
588 | struct snd_pcm_runtime *rt = sub->runtime; | |
589 | audio_buf = rt->dma_area; | |
590 | sz = frames_to_bytes(rt, rt->buffer_size); | |
591 | } | |
592 | ||
593 | for (c = 0; c < CHANNELS_PER_STREAM; c++) { | |
594 | for (n = 0; n < BYTES_PER_SAMPLE; n++) { | |
595 | if (audio_buf) { | |
1c8470ce | 596 | usb_buf[i+n] = audio_buf[cdev->audio_out_buf_pos[stream]++]; |
15c5ab60 | 597 | |
1c8470ce DM |
598 | if (cdev->audio_out_buf_pos[stream] == sz) |
599 | cdev->audio_out_buf_pos[stream] = 0; | |
15c5ab60 DM |
600 | } else { |
601 | usb_buf[i+n] = 0; | |
602 | } | |
603 | } | |
604 | ||
605 | if (audio_buf) | |
1c8470ce | 606 | cdev->period_out_count[stream] += BYTES_PER_SAMPLE; |
15c5ab60 DM |
607 | |
608 | i += BYTES_PER_SAMPLE; | |
609 | ||
610 | /* fill in the check byte pattern */ | |
611 | usb_buf[i++] = (stream << 1) | c; | |
612 | } | |
613 | } | |
614 | } | |
615 | } | |
616 | ||
1c8470ce | 617 | static inline void fill_out_urb(struct snd_usb_caiaqdev *cdev, |
15c5ab60 DM |
618 | struct urb *urb, |
619 | const struct usb_iso_packet_descriptor *iso) | |
620 | { | |
1c8470ce | 621 | switch (cdev->spec.data_alignment) { |
15c5ab60 DM |
622 | case 0: |
623 | case 2: | |
1c8470ce | 624 | fill_out_urb_mode_0(cdev, urb, iso); |
15c5ab60 DM |
625 | break; |
626 | case 3: | |
1c8470ce | 627 | fill_out_urb_mode_3(cdev, urb, iso); |
15c5ab60 | 628 | break; |
523f1dce | 629 | } |
523f1dce DM |
630 | } |
631 | ||
632 | static void read_completed(struct urb *urb) | |
633 | { | |
9318dce5 | 634 | struct snd_usb_caiaq_cb_info *info = urb->context; |
1c8470ce | 635 | struct snd_usb_caiaqdev *cdev; |
f1f6b8f6 | 636 | struct device *dev; |
da6094ea DM |
637 | struct urb *out = NULL; |
638 | int i, frame, len, send_it = 0, outframe = 0; | |
15439bde | 639 | size_t offset = 0; |
523f1dce DM |
640 | |
641 | if (urb->status || !info) | |
642 | return; | |
643 | ||
1c8470ce | 644 | cdev = info->cdev; |
f1f6b8f6 | 645 | dev = caiaqdev_to_dev(cdev); |
8d048841 | 646 | |
1c8470ce | 647 | if (!cdev->streaming) |
523f1dce DM |
648 | return; |
649 | ||
da6094ea DM |
650 | /* find an unused output urb that is unused */ |
651 | for (i = 0; i < N_URBS; i++) | |
1c8470ce DM |
652 | if (test_and_set_bit(i, &cdev->outurb_active_mask) == 0) { |
653 | out = cdev->data_urbs_out[i]; | |
da6094ea DM |
654 | break; |
655 | } | |
656 | ||
657 | if (!out) { | |
f1f6b8f6 | 658 | dev_err(dev, "Unable to find an output urb to use\n"); |
da6094ea DM |
659 | goto requeue; |
660 | } | |
523f1dce DM |
661 | |
662 | /* read the recently received packet and send back one which has | |
663 | * the same layout */ | |
664 | for (frame = 0; frame < FRAMES_PER_URB; frame++) { | |
665 | if (urb->iso_frame_desc[frame].status) | |
666 | continue; | |
667 | ||
668 | len = urb->iso_frame_desc[outframe].actual_length; | |
669 | out->iso_frame_desc[outframe].length = len; | |
670 | out->iso_frame_desc[outframe].actual_length = 0; | |
15439bde DM |
671 | out->iso_frame_desc[outframe].offset = offset; |
672 | offset += len; | |
9318dce5 | 673 | |
523f1dce | 674 | if (len > 0) { |
1c8470ce DM |
675 | spin_lock(&cdev->spinlock); |
676 | fill_out_urb(cdev, out, &out->iso_frame_desc[outframe]); | |
677 | read_in_urb(cdev, urb, &urb->iso_frame_desc[frame]); | |
678 | spin_unlock(&cdev->spinlock); | |
679 | check_for_elapsed_periods(cdev, cdev->sub_playback); | |
680 | check_for_elapsed_periods(cdev, cdev->sub_capture); | |
523f1dce DM |
681 | send_it = 1; |
682 | } | |
683 | ||
684 | outframe++; | |
685 | } | |
686 | ||
687 | if (send_it) { | |
15439bde | 688 | out->number_of_packets = outframe; |
523f1dce | 689 | usb_submit_urb(out, GFP_ATOMIC); |
da6094ea DM |
690 | } else { |
691 | struct snd_usb_caiaq_cb_info *oinfo = out->context; | |
1c8470ce | 692 | clear_bit(oinfo->index, &cdev->outurb_active_mask); |
523f1dce | 693 | } |
9318dce5 | 694 | |
da6094ea | 695 | requeue: |
523f1dce DM |
696 | /* re-submit inbound urb */ |
697 | for (frame = 0; frame < FRAMES_PER_URB; frame++) { | |
698 | urb->iso_frame_desc[frame].offset = BYTES_PER_FRAME * frame; | |
699 | urb->iso_frame_desc[frame].length = BYTES_PER_FRAME; | |
700 | urb->iso_frame_desc[frame].actual_length = 0; | |
701 | } | |
9318dce5 | 702 | |
523f1dce | 703 | urb->number_of_packets = FRAMES_PER_URB; |
523f1dce DM |
704 | usb_submit_urb(urb, GFP_ATOMIC); |
705 | } | |
706 | ||
707 | static void write_completed(struct urb *urb) | |
708 | { | |
709 | struct snd_usb_caiaq_cb_info *info = urb->context; | |
1c8470ce | 710 | struct snd_usb_caiaqdev *cdev = info->cdev; |
523f1dce | 711 | |
1c8470ce DM |
712 | if (!cdev->output_running) { |
713 | cdev->output_running = 1; | |
714 | wake_up(&cdev->prepare_wait_queue); | |
523f1dce | 715 | } |
da6094ea | 716 | |
1c8470ce | 717 | clear_bit(info->index, &cdev->outurb_active_mask); |
523f1dce DM |
718 | } |
719 | ||
1c8470ce | 720 | static struct urb **alloc_urbs(struct snd_usb_caiaqdev *cdev, int dir, int *ret) |
523f1dce DM |
721 | { |
722 | int i, frame; | |
723 | struct urb **urbs; | |
1c8470ce | 724 | struct usb_device *usb_dev = cdev->chip.dev; |
f1f6b8f6 | 725 | struct device *dev = caiaqdev_to_dev(cdev); |
523f1dce DM |
726 | unsigned int pipe; |
727 | ||
9318dce5 | 728 | pipe = (dir == SNDRV_PCM_STREAM_PLAYBACK) ? |
523f1dce DM |
729 | usb_sndisocpipe(usb_dev, ENDPOINT_PLAYBACK) : |
730 | usb_rcvisocpipe(usb_dev, ENDPOINT_CAPTURE); | |
731 | ||
732 | urbs = kmalloc(N_URBS * sizeof(*urbs), GFP_KERNEL); | |
733 | if (!urbs) { | |
f1f6b8f6 | 734 | dev_err(dev, "unable to kmalloc() urbs, OOM!?\n"); |
523f1dce DM |
735 | *ret = -ENOMEM; |
736 | return NULL; | |
737 | } | |
738 | ||
739 | for (i = 0; i < N_URBS; i++) { | |
740 | urbs[i] = usb_alloc_urb(FRAMES_PER_URB, GFP_KERNEL); | |
741 | if (!urbs[i]) { | |
f1f6b8f6 | 742 | dev_err(dev, "unable to usb_alloc_urb(), OOM!?\n"); |
523f1dce DM |
743 | *ret = -ENOMEM; |
744 | return urbs; | |
745 | } | |
746 | ||
9318dce5 | 747 | urbs[i]->transfer_buffer = |
523f1dce DM |
748 | kmalloc(FRAMES_PER_URB * BYTES_PER_FRAME, GFP_KERNEL); |
749 | if (!urbs[i]->transfer_buffer) { | |
f1f6b8f6 | 750 | dev_err(dev, "unable to kmalloc() transfer buffer, OOM!?\n"); |
523f1dce DM |
751 | *ret = -ENOMEM; |
752 | return urbs; | |
753 | } | |
9318dce5 | 754 | |
523f1dce | 755 | for (frame = 0; frame < FRAMES_PER_URB; frame++) { |
9318dce5 | 756 | struct usb_iso_packet_descriptor *iso = |
523f1dce | 757 | &urbs[i]->iso_frame_desc[frame]; |
9318dce5 | 758 | |
523f1dce DM |
759 | iso->offset = BYTES_PER_FRAME * frame; |
760 | iso->length = BYTES_PER_FRAME; | |
761 | } | |
9318dce5 | 762 | |
523f1dce DM |
763 | urbs[i]->dev = usb_dev; |
764 | urbs[i]->pipe = pipe; | |
9318dce5 | 765 | urbs[i]->transfer_buffer_length = FRAMES_PER_URB |
523f1dce | 766 | * BYTES_PER_FRAME; |
1c8470ce | 767 | urbs[i]->context = &cdev->data_cb_info[i]; |
523f1dce | 768 | urbs[i]->interval = 1; |
523f1dce DM |
769 | urbs[i]->number_of_packets = FRAMES_PER_URB; |
770 | urbs[i]->complete = (dir == SNDRV_PCM_STREAM_CAPTURE) ? | |
771 | read_completed : write_completed; | |
772 | } | |
773 | ||
774 | *ret = 0; | |
775 | return urbs; | |
776 | } | |
777 | ||
778 | static void free_urbs(struct urb **urbs) | |
779 | { | |
780 | int i; | |
781 | ||
782 | if (!urbs) | |
783 | return; | |
784 | ||
785 | for (i = 0; i < N_URBS; i++) { | |
786 | if (!urbs[i]) | |
787 | continue; | |
9318dce5 | 788 | |
523f1dce DM |
789 | usb_kill_urb(urbs[i]); |
790 | kfree(urbs[i]->transfer_buffer); | |
791 | usb_free_urb(urbs[i]); | |
792 | } | |
793 | ||
794 | kfree(urbs); | |
795 | } | |
796 | ||
1c8470ce | 797 | int snd_usb_caiaq_audio_init(struct snd_usb_caiaqdev *cdev) |
523f1dce DM |
798 | { |
799 | int i, ret; | |
f1f6b8f6 | 800 | struct device *dev = caiaqdev_to_dev(cdev); |
523f1dce | 801 | |
1c8470ce DM |
802 | cdev->n_audio_in = max(cdev->spec.num_analog_audio_in, |
803 | cdev->spec.num_digital_audio_in) / | |
523f1dce | 804 | CHANNELS_PER_STREAM; |
1c8470ce DM |
805 | cdev->n_audio_out = max(cdev->spec.num_analog_audio_out, |
806 | cdev->spec.num_digital_audio_out) / | |
523f1dce | 807 | CHANNELS_PER_STREAM; |
1c8470ce | 808 | cdev->n_streams = max(cdev->n_audio_in, cdev->n_audio_out); |
523f1dce | 809 | |
f1f6b8f6 DM |
810 | dev_dbg(dev, "cdev->n_audio_in = %d\n", cdev->n_audio_in); |
811 | dev_dbg(dev, "cdev->n_audio_out = %d\n", cdev->n_audio_out); | |
812 | dev_dbg(dev, "cdev->n_streams = %d\n", cdev->n_streams); | |
523f1dce | 813 | |
1c8470ce | 814 | if (cdev->n_streams > MAX_STREAMS) { |
f1f6b8f6 | 815 | dev_err(dev, "unable to initialize device, too many streams.\n"); |
523f1dce DM |
816 | return -EINVAL; |
817 | } | |
818 | ||
1c8470ce DM |
819 | ret = snd_pcm_new(cdev->chip.card, cdev->product_name, 0, |
820 | cdev->n_audio_out, cdev->n_audio_in, &cdev->pcm); | |
523f1dce DM |
821 | |
822 | if (ret < 0) { | |
f1f6b8f6 | 823 | dev_err(dev, "snd_pcm_new() returned %d\n", ret); |
523f1dce DM |
824 | return ret; |
825 | } | |
826 | ||
1c8470ce DM |
827 | cdev->pcm->private_data = cdev; |
828 | strlcpy(cdev->pcm->name, cdev->product_name, sizeof(cdev->pcm->name)); | |
523f1dce | 829 | |
1c8470ce DM |
830 | memset(cdev->sub_playback, 0, sizeof(cdev->sub_playback)); |
831 | memset(cdev->sub_capture, 0, sizeof(cdev->sub_capture)); | |
9318dce5 | 832 | |
1c8470ce | 833 | memcpy(&cdev->pcm_info, &snd_usb_caiaq_pcm_hardware, |
523f1dce DM |
834 | sizeof(snd_usb_caiaq_pcm_hardware)); |
835 | ||
836 | /* setup samplerates */ | |
1c8470ce DM |
837 | cdev->samplerates = cdev->pcm_info.rates; |
838 | switch (cdev->chip.usb_id) { | |
523f1dce | 839 | case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_AK1): |
ad1e34b5 | 840 | case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_RIGKONTROL3): |
f3e9d5d1 | 841 | case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_SESSIONIO): |
2165592b | 842 | case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_GUITARRIGMOBILE): |
1c8470ce | 843 | cdev->samplerates |= SNDRV_PCM_RATE_192000; |
2165592b | 844 | /* fall thru */ |
b30c4947 | 845 | case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_AUDIO2DJ): |
2165592b | 846 | case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_AUDIO4DJ): |
523f1dce | 847 | case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_AUDIO8DJ): |
df8d81a3 | 848 | case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_TRAKTORAUDIO2): |
1c8470ce | 849 | cdev->samplerates |= SNDRV_PCM_RATE_88200; |
523f1dce DM |
850 | break; |
851 | } | |
852 | ||
1c8470ce | 853 | snd_pcm_set_ops(cdev->pcm, SNDRV_PCM_STREAM_PLAYBACK, |
523f1dce | 854 | &snd_usb_caiaq_ops); |
1c8470ce | 855 | snd_pcm_set_ops(cdev->pcm, SNDRV_PCM_STREAM_CAPTURE, |
523f1dce DM |
856 | &snd_usb_caiaq_ops); |
857 | ||
1c8470ce | 858 | cdev->data_cb_info = |
9318dce5 | 859 | kmalloc(sizeof(struct snd_usb_caiaq_cb_info) * N_URBS, |
523f1dce DM |
860 | GFP_KERNEL); |
861 | ||
1c8470ce | 862 | if (!cdev->data_cb_info) |
523f1dce DM |
863 | return -ENOMEM; |
864 | ||
1c8470ce DM |
865 | cdev->outurb_active_mask = 0; |
866 | BUILD_BUG_ON(N_URBS > (sizeof(cdev->outurb_active_mask) * 8)); | |
da6094ea | 867 | |
523f1dce | 868 | for (i = 0; i < N_URBS; i++) { |
1c8470ce DM |
869 | cdev->data_cb_info[i].cdev = cdev; |
870 | cdev->data_cb_info[i].index = i; | |
523f1dce | 871 | } |
9318dce5 | 872 | |
1c8470ce | 873 | cdev->data_urbs_in = alloc_urbs(cdev, SNDRV_PCM_STREAM_CAPTURE, &ret); |
523f1dce | 874 | if (ret < 0) { |
1c8470ce DM |
875 | kfree(cdev->data_cb_info); |
876 | free_urbs(cdev->data_urbs_in); | |
523f1dce DM |
877 | return ret; |
878 | } | |
9318dce5 | 879 | |
1c8470ce | 880 | cdev->data_urbs_out = alloc_urbs(cdev, SNDRV_PCM_STREAM_PLAYBACK, &ret); |
523f1dce | 881 | if (ret < 0) { |
1c8470ce DM |
882 | kfree(cdev->data_cb_info); |
883 | free_urbs(cdev->data_urbs_in); | |
884 | free_urbs(cdev->data_urbs_out); | |
523f1dce DM |
885 | return ret; |
886 | } | |
887 | ||
888 | return 0; | |
889 | } | |
890 | ||
1c8470ce | 891 | void snd_usb_caiaq_audio_free(struct snd_usb_caiaqdev *cdev) |
523f1dce | 892 | { |
f1f6b8f6 DM |
893 | struct device *dev = caiaqdev_to_dev(cdev); |
894 | ||
895 | dev_dbg(dev, "%s(%p)\n", __func__, cdev); | |
1c8470ce DM |
896 | stream_stop(cdev); |
897 | free_urbs(cdev->data_urbs_in); | |
898 | free_urbs(cdev->data_urbs_out); | |
899 | kfree(cdev->data_cb_info); | |
523f1dce DM |
900 | } |
901 |