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fffa1cca VK |
1 | /* |
2 | * intel_sst_stream.c - Intel SST Driver for audio engine | |
3 | * | |
4 | * Copyright (C) 2008-10 Intel Corp | |
5 | * Authors: Vinod Koul <vinod.koul@intel.com> | |
6 | * Harsha Priya <priya.harsha@intel.com> | |
7 | * Dharageswari R <dharageswari.r@intel.com> | |
8 | * KP Jeeja <jeeja.kp@intel.com> | |
9 | * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | |
10 | * | |
11 | * This program is free software; you can redistribute it and/or modify | |
12 | * it under the terms of the GNU General Public License as published by | |
13 | * the Free Software Foundation; version 2 of the License. | |
14 | * | |
15 | * This program is distributed in the hope that it will be useful, but | |
16 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
18 | * General Public License for more details. | |
19 | * | |
20 | * You should have received a copy of the GNU General Public License along | |
21 | * with this program; if not, write to the Free Software Foundation, Inc., | |
22 | * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. | |
23 | * | |
24 | * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | |
25 | * | |
26 | * This file contains the stream operations of SST driver | |
27 | */ | |
28 | ||
d0f40c50 JP |
29 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
30 | ||
fffa1cca VK |
31 | #include <linux/pci.h> |
32 | #include <linux/firmware.h> | |
33 | #include <linux/sched.h> | |
34 | #include "intel_sst_ioctl.h" | |
35 | #include "intel_sst.h" | |
36 | #include "intel_sst_fw_ipc.h" | |
37 | #include "intel_sst_common.h" | |
38 | ||
39 | /* | |
40 | * sst_check_device_type - Check the medfield device type | |
41 | * | |
42 | * @device: Device to be checked | |
43 | * @num_ch: Number of channels queried | |
44 | * @pcm_slot: slot to be enabled for this device | |
45 | * | |
46 | * This checks the deivce against the map and calculates pcm_slot value | |
47 | */ | |
48 | int sst_check_device_type(u32 device, u32 num_chan, u32 *pcm_slot) | |
49 | { | |
6f6ffec1 | 50 | if (device > MAX_NUM_STREAMS_MFLD) { |
d0f40c50 | 51 | pr_debug("device type invalid %d\n", device); |
fffa1cca VK |
52 | return -EINVAL; |
53 | } | |
54 | if (sst_drv_ctx->streams[device].status == STREAM_UN_INIT) { | |
55 | if (device == SND_SST_DEVICE_VIBRA && num_chan == 1) | |
56 | *pcm_slot = 0x10; | |
57 | else if (device == SND_SST_DEVICE_HAPTIC && num_chan == 1) | |
58 | *pcm_slot = 0x20; | |
59 | else if (device == SND_SST_DEVICE_IHF && num_chan == 1) | |
60 | *pcm_slot = 0x04; | |
61 | else if (device == SND_SST_DEVICE_IHF && num_chan == 2) | |
62 | *pcm_slot = 0x0C; | |
63 | else if (device == SND_SST_DEVICE_HEADSET && num_chan == 1) | |
64 | *pcm_slot = 0x01; | |
65 | else if (device == SND_SST_DEVICE_HEADSET && num_chan == 2) | |
66 | *pcm_slot = 0x03; | |
67 | else if (device == SND_SST_DEVICE_CAPTURE && num_chan == 1) | |
68 | *pcm_slot = 0x01; | |
69 | else if (device == SND_SST_DEVICE_CAPTURE && num_chan == 2) | |
70 | *pcm_slot = 0x03; | |
71 | else if (device == SND_SST_DEVICE_CAPTURE && num_chan == 3) | |
72 | *pcm_slot = 0x07; | |
73 | else if (device == SND_SST_DEVICE_CAPTURE && num_chan == 4) | |
74 | *pcm_slot = 0x0F; | |
75 | else { | |
d0f40c50 | 76 | pr_debug("No condition satisfied.. ret err\n"); |
fffa1cca VK |
77 | return -EINVAL; |
78 | } | |
79 | } else { | |
d0f40c50 | 80 | pr_debug("this stream state is not uni-init, is %d\n", |
fffa1cca VK |
81 | sst_drv_ctx->streams[device].status); |
82 | return -EBADRQC; | |
83 | } | |
d0f40c50 | 84 | pr_debug("returning slot %x\n", *pcm_slot); |
fffa1cca VK |
85 | return 0; |
86 | } | |
87 | /** | |
88 | * get_mrst_stream_id - gets a new stream id for use | |
89 | * | |
90 | * This functions searches the current streams and allocated an empty stream | |
91 | * lock stream_lock required to be held before calling this | |
92 | */ | |
93 | static unsigned int get_mrst_stream_id(void) | |
94 | { | |
95 | int i; | |
96 | ||
97 | for (i = 1; i <= MAX_NUM_STREAMS_MRST; i++) { | |
98 | if (sst_drv_ctx->streams[i].status == STREAM_UN_INIT) | |
99 | return i; | |
100 | } | |
25985edc | 101 | pr_debug("Didn't find empty stream for mrst\n"); |
fffa1cca VK |
102 | return -EBUSY; |
103 | } | |
104 | ||
105 | /** | |
106 | * sst_alloc_stream - Send msg for a new stream ID | |
107 | * | |
108 | * @params: stream params | |
109 | * @stream_ops: operation of stream PB/capture | |
110 | * @codec: codec for stream | |
111 | * @device: device stream to be allocated for | |
112 | * | |
113 | * This function is called by any function which wants to start | |
114 | * a new stream. This also check if a stream exists which is idle | |
115 | * it initializes idle stream id to this request | |
116 | */ | |
117 | int sst_alloc_stream(char *params, unsigned int stream_ops, | |
118 | u8 codec, unsigned int device) | |
119 | { | |
120 | struct ipc_post *msg = NULL; | |
121 | struct snd_sst_alloc_params alloc_param; | |
7915c0d4 VK |
122 | unsigned int pcm_slot = 0, num_ch; |
123 | int str_id; | |
fffa1cca VK |
124 | struct snd_sst_stream_params *sparams; |
125 | struct stream_info *str_info; | |
126 | ||
127 | pr_debug("SST DBG:entering sst_alloc_stream\n"); | |
128 | pr_debug("SST DBG:%d %d %d\n", stream_ops, codec, device); | |
129 | ||
130 | BUG_ON(!params); | |
131 | sparams = (struct snd_sst_stream_params *)params; | |
132 | num_ch = sparams->uc.pcm_params.num_chan; | |
133 | /*check the device type*/ | |
134 | if (sst_drv_ctx->pci_id == SST_MFLD_PCI_ID) { | |
135 | if (sst_check_device_type(device, num_ch, &pcm_slot)) | |
136 | return -EINVAL; | |
137 | mutex_lock(&sst_drv_ctx->stream_lock); | |
138 | str_id = device; | |
139 | mutex_unlock(&sst_drv_ctx->stream_lock); | |
140 | pr_debug("SST_DBG: slot %x\n", pcm_slot); | |
141 | } else { | |
142 | mutex_lock(&sst_drv_ctx->stream_lock); | |
143 | str_id = get_mrst_stream_id(); | |
144 | mutex_unlock(&sst_drv_ctx->stream_lock); | |
145 | if (str_id <= 0) | |
146 | return -EBUSY; | |
147 | } | |
148 | /*allocate device type context*/ | |
149 | sst_init_stream(&sst_drv_ctx->streams[str_id], codec, | |
150 | str_id, stream_ops, pcm_slot, device); | |
151 | /* send msg to FW to allocate a stream */ | |
152 | if (sst_create_large_msg(&msg)) | |
153 | return -ENOMEM; | |
154 | ||
155 | sst_fill_header(&msg->header, IPC_IA_ALLOC_STREAM, 1, str_id); | |
156 | msg->header.part.data = sizeof(alloc_param) + sizeof(u32); | |
157 | alloc_param.str_type.codec_type = codec; | |
158 | alloc_param.str_type.str_type = SST_STREAM_TYPE_MUSIC; | |
159 | alloc_param.str_type.operation = stream_ops; | |
160 | alloc_param.str_type.protected_str = 0; /* non drm */ | |
161 | alloc_param.str_type.time_slots = pcm_slot; | |
162 | alloc_param.str_type.result = alloc_param.str_type.reserved = 0; | |
163 | memcpy(&alloc_param.stream_params, params, | |
164 | sizeof(struct snd_sst_stream_params)); | |
165 | ||
166 | memcpy(msg->mailbox_data, &msg->header, sizeof(u32)); | |
167 | memcpy(msg->mailbox_data + sizeof(u32), &alloc_param, | |
168 | sizeof(alloc_param)); | |
169 | str_info = &sst_drv_ctx->streams[str_id]; | |
170 | str_info->ctrl_blk.condition = false; | |
171 | str_info->ctrl_blk.ret_code = 0; | |
172 | str_info->ctrl_blk.on = true; | |
173 | spin_lock(&sst_drv_ctx->list_spin_lock); | |
174 | list_add_tail(&msg->node, &sst_drv_ctx->ipc_dispatch_list); | |
175 | spin_unlock(&sst_drv_ctx->list_spin_lock); | |
176 | sst_post_message(&sst_drv_ctx->ipc_post_msg_wq); | |
177 | pr_debug("SST DBG:alloc stream done\n"); | |
178 | return str_id; | |
179 | } | |
180 | ||
181 | ||
182 | /* | |
183 | * sst_alloc_stream_response - process alloc reply | |
184 | * | |
185 | * @str_id: stream id for which the stream has been allocated | |
186 | * @resp the stream response from firware | |
187 | * | |
188 | * This function is called by firmware as a response to stream allcoation | |
189 | * request | |
190 | */ | |
191 | int sst_alloc_stream_response(unsigned int str_id, | |
192 | struct snd_sst_alloc_response *resp) | |
193 | { | |
194 | int retval = 0; | |
195 | struct stream_info *str_info; | |
196 | struct snd_sst_lib_download *lib_dnld; | |
197 | ||
198 | pr_debug("SST DEBUG: stream number given = %d\n", str_id); | |
199 | str_info = &sst_drv_ctx->streams[str_id]; | |
200 | if (resp->str_type.result == SST_LIB_ERR_LIB_DNLD_REQUIRED) { | |
201 | lib_dnld = kzalloc(sizeof(*lib_dnld), GFP_KERNEL); | |
202 | memcpy(lib_dnld, &resp->lib_dnld, sizeof(*lib_dnld)); | |
203 | } else | |
204 | lib_dnld = NULL; | |
205 | if (str_info->ctrl_blk.on == true) { | |
206 | str_info->ctrl_blk.on = false; | |
207 | str_info->ctrl_blk.data = lib_dnld; | |
208 | str_info->ctrl_blk.condition = true; | |
209 | str_info->ctrl_blk.ret_code = resp->str_type.result; | |
210 | pr_debug("SST DEBUG: sst_alloc_stream_response: waking up.\n"); | |
211 | wake_up(&sst_drv_ctx->wait_queue); | |
212 | } | |
213 | return retval; | |
214 | } | |
215 | ||
216 | ||
217 | /** | |
218 | * sst_get_fw_info - Send msg to query for firmware configurations | |
219 | * @info: out param that holds the firmare configurations | |
220 | * | |
221 | * This function is called when the firmware configurations are queiried for | |
222 | */ | |
223 | int sst_get_fw_info(struct snd_sst_fw_info *info) | |
224 | { | |
225 | int retval = 0; | |
226 | struct ipc_post *msg = NULL; | |
227 | ||
228 | pr_debug("SST DBG:sst_get_fw_info called\n"); | |
229 | ||
230 | if (sst_create_short_msg(&msg)) { | |
231 | pr_err("SST ERR: message creation failed\n"); | |
232 | return -ENOMEM; | |
233 | } | |
234 | ||
235 | sst_fill_header(&msg->header, IPC_IA_GET_FW_INFO, 0, 0); | |
236 | sst_drv_ctx->fw_info_blk.condition = false; | |
237 | sst_drv_ctx->fw_info_blk.ret_code = 0; | |
238 | sst_drv_ctx->fw_info_blk.on = true; | |
239 | sst_drv_ctx->fw_info_blk.data = info; | |
240 | spin_lock(&sst_drv_ctx->list_spin_lock); | |
241 | list_add_tail(&msg->node, &sst_drv_ctx->ipc_dispatch_list); | |
242 | spin_unlock(&sst_drv_ctx->list_spin_lock); | |
243 | sst_post_message(&sst_drv_ctx->ipc_post_msg_wq); | |
244 | retval = sst_wait_interruptible_timeout(sst_drv_ctx, | |
245 | &sst_drv_ctx->fw_info_blk, SST_BLOCK_TIMEOUT); | |
246 | if (retval) { | |
247 | pr_err("SST ERR: error in fw_info = %d\n", retval); | |
248 | retval = -EIO; | |
249 | } | |
250 | return retval; | |
251 | } | |
252 | ||
253 | ||
254 | /** | |
255 | * sst_pause_stream - Send msg for a pausing stream | |
256 | * @str_id: stream ID | |
257 | * | |
258 | * This function is called by any function which wants to pause | |
259 | * an already running stream. | |
260 | */ | |
261 | int sst_start_stream(int str_id) | |
262 | { | |
263 | int retval = 0; | |
264 | struct ipc_post *msg = NULL; | |
265 | struct stream_info *str_info; | |
266 | ||
267 | pr_debug("sst_start_stream for %d\n", str_id); | |
268 | retval = sst_validate_strid(str_id); | |
269 | if (retval) | |
270 | return retval; | |
271 | str_info = &sst_drv_ctx->streams[str_id]; | |
272 | if (str_info->status != STREAM_INIT) | |
273 | return -EBADRQC; | |
274 | if (sst_create_short_msg(&msg)) | |
275 | return -ENOMEM; | |
276 | ||
277 | sst_fill_header(&msg->header, IPC_IA_START_STREAM, 0, str_id); | |
278 | spin_lock(&sst_drv_ctx->list_spin_lock); | |
279 | list_add_tail(&msg->node, &sst_drv_ctx->ipc_dispatch_list); | |
280 | spin_unlock(&sst_drv_ctx->list_spin_lock); | |
281 | sst_post_message(&sst_drv_ctx->ipc_post_msg_wq); | |
282 | return retval; | |
283 | } | |
284 | ||
285 | /* | |
286 | * sst_pause_stream - Send msg for a pausing stream | |
287 | * @str_id: stream ID | |
288 | * | |
289 | * This function is called by any function which wants to pause | |
290 | * an already running stream. | |
291 | */ | |
292 | int sst_pause_stream(int str_id) | |
293 | { | |
294 | int retval = 0; | |
295 | struct ipc_post *msg = NULL; | |
296 | struct stream_info *str_info; | |
297 | ||
298 | pr_debug("SST DBG:sst_pause_stream for %d\n", str_id); | |
299 | retval = sst_validate_strid(str_id); | |
300 | if (retval) | |
301 | return retval; | |
302 | str_info = &sst_drv_ctx->streams[str_id]; | |
303 | if (str_info->status == STREAM_PAUSED) | |
304 | return 0; | |
305 | if (str_info->status == STREAM_RUNNING || | |
306 | str_info->status == STREAM_INIT) { | |
307 | if (str_info->prev == STREAM_UN_INIT) | |
308 | return -EBADRQC; | |
309 | if (str_info->ctrl_blk.on == true) { | |
d0f40c50 | 310 | pr_err("SST ERR: control path is in use\n"); |
fffa1cca VK |
311 | return -EINVAL; |
312 | } | |
313 | if (sst_create_short_msg(&msg)) | |
314 | return -ENOMEM; | |
315 | ||
316 | sst_fill_header(&msg->header, IPC_IA_PAUSE_STREAM, 0, str_id); | |
317 | str_info->ctrl_blk.condition = false; | |
318 | str_info->ctrl_blk.ret_code = 0; | |
319 | str_info->ctrl_blk.on = true; | |
320 | spin_lock(&sst_drv_ctx->list_spin_lock); | |
321 | list_add_tail(&msg->node, | |
322 | &sst_drv_ctx->ipc_dispatch_list); | |
323 | spin_unlock(&sst_drv_ctx->list_spin_lock); | |
324 | sst_post_message(&sst_drv_ctx->ipc_post_msg_wq); | |
325 | retval = sst_wait_interruptible_timeout(sst_drv_ctx, | |
326 | &str_info->ctrl_blk, SST_BLOCK_TIMEOUT); | |
327 | if (retval == 0) { | |
328 | str_info->prev = str_info->status; | |
329 | str_info->status = STREAM_PAUSED; | |
330 | } else if (retval == SST_ERR_INVALID_STREAM_ID) { | |
331 | retval = -EINVAL; | |
332 | mutex_lock(&sst_drv_ctx->stream_lock); | |
333 | sst_clean_stream(str_info); | |
334 | mutex_unlock(&sst_drv_ctx->stream_lock); | |
335 | } | |
336 | } else { | |
337 | retval = -EBADRQC; | |
d0f40c50 | 338 | pr_err("SST ERR: BADQRC for stream\n"); |
fffa1cca VK |
339 | } |
340 | ||
341 | return retval; | |
342 | } | |
343 | ||
344 | /** | |
345 | * sst_resume_stream - Send msg for resuming stream | |
346 | * @str_id: stream ID | |
347 | * | |
348 | * This function is called by any function which wants to resume | |
349 | * an already paused stream. | |
350 | */ | |
351 | int sst_resume_stream(int str_id) | |
352 | { | |
353 | int retval = 0; | |
354 | struct ipc_post *msg = NULL; | |
355 | struct stream_info *str_info; | |
356 | ||
357 | pr_debug("SST DBG:sst_resume_stream for %d\n", str_id); | |
358 | retval = sst_validate_strid(str_id); | |
359 | if (retval) | |
360 | return retval; | |
361 | str_info = &sst_drv_ctx->streams[str_id]; | |
362 | if (str_info->status == STREAM_RUNNING) | |
363 | return 0; | |
364 | if (str_info->status == STREAM_PAUSED) { | |
365 | if (str_info->ctrl_blk.on == true) { | |
366 | pr_err("SST ERR: control path in use\n"); | |
367 | return -EINVAL; | |
368 | } | |
369 | if (sst_create_short_msg(&msg)) { | |
370 | pr_err("SST ERR: mem allocation failed\n"); | |
371 | return -ENOMEM; | |
372 | } | |
373 | sst_fill_header(&msg->header, IPC_IA_RESUME_STREAM, 0, str_id); | |
374 | str_info->ctrl_blk.condition = false; | |
375 | str_info->ctrl_blk.ret_code = 0; | |
376 | str_info->ctrl_blk.on = true; | |
377 | spin_lock(&sst_drv_ctx->list_spin_lock); | |
378 | list_add_tail(&msg->node, | |
379 | &sst_drv_ctx->ipc_dispatch_list); | |
380 | spin_unlock(&sst_drv_ctx->list_spin_lock); | |
381 | sst_post_message(&sst_drv_ctx->ipc_post_msg_wq); | |
382 | retval = sst_wait_interruptible_timeout(sst_drv_ctx, | |
383 | &str_info->ctrl_blk, SST_BLOCK_TIMEOUT); | |
384 | if (!retval) { | |
385 | if (str_info->prev == STREAM_RUNNING) | |
386 | str_info->status = STREAM_RUNNING; | |
387 | else | |
388 | str_info->status = STREAM_INIT; | |
389 | str_info->prev = STREAM_PAUSED; | |
390 | } else if (retval == -SST_ERR_INVALID_STREAM_ID) { | |
391 | retval = -EINVAL; | |
392 | mutex_lock(&sst_drv_ctx->stream_lock); | |
393 | sst_clean_stream(str_info); | |
394 | mutex_unlock(&sst_drv_ctx->stream_lock); | |
395 | } | |
396 | } else { | |
397 | retval = -EBADRQC; | |
398 | pr_err("SST ERR: BADQRC for stream\n"); | |
399 | } | |
400 | ||
401 | return retval; | |
402 | } | |
403 | ||
404 | ||
405 | /** | |
406 | * sst_drop_stream - Send msg for stopping stream | |
407 | * @str_id: stream ID | |
408 | * | |
409 | * This function is called by any function which wants to stop | |
410 | * a stream. | |
411 | */ | |
412 | int sst_drop_stream(int str_id) | |
413 | { | |
414 | int retval = 0; | |
415 | struct ipc_post *msg = NULL; | |
416 | struct sst_stream_bufs *bufs = NULL, *_bufs; | |
417 | struct stream_info *str_info; | |
418 | ||
419 | pr_debug("SST DBG:sst_drop_stream for %d\n", str_id); | |
420 | retval = sst_validate_strid(str_id); | |
421 | if (retval) | |
422 | return retval; | |
423 | str_info = &sst_drv_ctx->streams[str_id]; | |
424 | ||
425 | if (str_info->status != STREAM_UN_INIT && | |
426 | str_info->status != STREAM_DECODE) { | |
427 | if (str_info->ctrl_blk.on == true) { | |
428 | pr_err("SST ERR: control path in use\n"); | |
429 | return -EINVAL; | |
430 | } | |
431 | if (sst_create_short_msg(&msg)) { | |
432 | pr_err("SST ERR: mem allocation failed\n"); | |
433 | return -ENOMEM; | |
434 | } | |
435 | sst_fill_header(&msg->header, IPC_IA_DROP_STREAM, 0, str_id); | |
436 | str_info->ctrl_blk.condition = false; | |
437 | str_info->ctrl_blk.ret_code = 0; | |
438 | str_info->ctrl_blk.on = true; | |
439 | spin_lock(&sst_drv_ctx->list_spin_lock); | |
440 | list_add_tail(&msg->node, | |
441 | &sst_drv_ctx->ipc_dispatch_list); | |
442 | spin_unlock(&sst_drv_ctx->list_spin_lock); | |
443 | sst_post_message(&sst_drv_ctx->ipc_post_msg_wq); | |
444 | retval = sst_wait_interruptible_timeout(sst_drv_ctx, | |
445 | &str_info->ctrl_blk, SST_BLOCK_TIMEOUT); | |
446 | if (!retval) { | |
447 | pr_debug("SST DBG:drop success\n"); | |
448 | str_info->prev = STREAM_UN_INIT; | |
449 | str_info->status = STREAM_INIT; | |
450 | if (str_info->src != MAD_DRV) { | |
451 | mutex_lock(&str_info->lock); | |
452 | list_for_each_entry_safe(bufs, _bufs, | |
453 | &str_info->bufs, node) { | |
454 | list_del(&bufs->node); | |
455 | kfree(bufs); | |
456 | } | |
457 | mutex_unlock(&str_info->lock); | |
458 | } | |
459 | str_info->cumm_bytes += str_info->curr_bytes; | |
460 | } else if (retval == -SST_ERR_INVALID_STREAM_ID) { | |
461 | retval = -EINVAL; | |
462 | mutex_lock(&sst_drv_ctx->stream_lock); | |
463 | sst_clean_stream(str_info); | |
464 | mutex_unlock(&sst_drv_ctx->stream_lock); | |
465 | } | |
466 | if (str_info->data_blk.on == true) { | |
467 | str_info->data_blk.condition = true; | |
468 | str_info->data_blk.ret_code = retval; | |
469 | wake_up(&sst_drv_ctx->wait_queue); | |
470 | } | |
471 | } else { | |
472 | retval = -EBADRQC; | |
d0f40c50 | 473 | pr_err("SST ERR: BADQRC for stream\n"); |
fffa1cca VK |
474 | } |
475 | return retval; | |
476 | } | |
477 | ||
478 | /** | |
479 | * sst_drain_stream - Send msg for draining stream | |
480 | * @str_id: stream ID | |
481 | * | |
482 | * This function is called by any function which wants to drain | |
483 | * a stream. | |
484 | */ | |
485 | int sst_drain_stream(int str_id) | |
486 | { | |
487 | int retval = 0; | |
488 | struct ipc_post *msg = NULL; | |
489 | struct stream_info *str_info; | |
490 | ||
491 | pr_debug("SST DBG:sst_drain_stream for %d\n", str_id); | |
492 | retval = sst_validate_strid(str_id); | |
493 | if (retval) | |
494 | return retval; | |
495 | str_info = &sst_drv_ctx->streams[str_id]; | |
496 | ||
497 | if (str_info->status != STREAM_RUNNING && | |
498 | str_info->status != STREAM_INIT && | |
499 | str_info->status != STREAM_PAUSED) { | |
500 | pr_err("SST ERR: BADQRC for stream = %d\n", | |
501 | str_info->status); | |
502 | return -EBADRQC; | |
503 | } | |
504 | ||
505 | if (str_info->status == STREAM_INIT) { | |
506 | if (sst_create_short_msg(&msg)) { | |
507 | pr_err("SST ERR: mem allocation failed\n"); | |
508 | return -ENOMEM; | |
509 | } | |
510 | sst_fill_header(&msg->header, IPC_IA_DRAIN_STREAM, 0, str_id); | |
511 | spin_lock(&sst_drv_ctx->list_spin_lock); | |
512 | list_add_tail(&msg->node, &sst_drv_ctx->ipc_dispatch_list); | |
513 | spin_unlock(&sst_drv_ctx->list_spin_lock); | |
514 | sst_post_message(&sst_drv_ctx->ipc_post_msg_wq); | |
515 | } else | |
516 | str_info->need_draining = true; | |
517 | str_info->data_blk.condition = false; | |
518 | str_info->data_blk.ret_code = 0; | |
519 | str_info->data_blk.on = true; | |
520 | retval = sst_wait_interruptible(sst_drv_ctx, &str_info->data_blk); | |
521 | str_info->need_draining = false; | |
522 | if (retval == -SST_ERR_INVALID_STREAM_ID) { | |
523 | retval = -EINVAL; | |
524 | sst_clean_stream(str_info); | |
525 | } | |
526 | return retval; | |
527 | } | |
528 | ||
529 | /** | |
530 | * sst_free_stream - Frees a stream | |
531 | * @str_id: stream ID | |
532 | * | |
533 | * This function is called by any function which wants to free | |
534 | * a stream. | |
535 | */ | |
536 | int sst_free_stream(int str_id) | |
537 | { | |
538 | int retval = 0; | |
539 | struct ipc_post *msg = NULL; | |
540 | struct stream_info *str_info; | |
541 | ||
542 | pr_debug("SST DBG:sst_free_stream for %d\n", str_id); | |
543 | ||
544 | retval = sst_validate_strid(str_id); | |
545 | if (retval) | |
546 | return retval; | |
547 | str_info = &sst_drv_ctx->streams[str_id]; | |
548 | ||
549 | if (str_info->status != STREAM_UN_INIT) { | |
550 | if (sst_create_short_msg(&msg)) { | |
551 | pr_err("SST ERR: mem allocation failed\n"); | |
552 | return -ENOMEM; | |
553 | } | |
554 | sst_fill_header(&msg->header, IPC_IA_FREE_STREAM, 0, str_id); | |
555 | spin_lock(&sst_drv_ctx->list_spin_lock); | |
556 | list_add_tail(&msg->node, &sst_drv_ctx->ipc_dispatch_list); | |
557 | spin_unlock(&sst_drv_ctx->list_spin_lock); | |
558 | sst_post_message(&sst_drv_ctx->ipc_post_msg_wq); | |
559 | str_info->prev = str_info->status; | |
560 | str_info->status = STREAM_UN_INIT; | |
561 | if (str_info->data_blk.on == true) { | |
562 | str_info->data_blk.condition = true; | |
563 | str_info->data_blk.ret_code = 0; | |
564 | wake_up(&sst_drv_ctx->wait_queue); | |
565 | } | |
566 | mutex_lock(&sst_drv_ctx->stream_lock); | |
567 | sst_clean_stream(str_info); | |
568 | mutex_unlock(&sst_drv_ctx->stream_lock); | |
569 | pr_debug("SST DBG:Stream freed\n"); | |
570 | } else { | |
571 | retval = -EBADRQC; | |
572 | pr_debug("SST DBG:BADQRC for stream\n"); | |
573 | } | |
574 | ||
575 | return retval; | |
576 | } | |
577 | ||
578 |