2 * sst_stream.c - Intel SST Driver for audio engine
4 * Copyright (C) 2008-14 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 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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.
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.
20 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
22 #include <linux/pci.h>
23 #include <linux/firmware.h>
24 #include <linux/sched.h>
25 #include <linux/delay.h>
26 #include <linux/pm_runtime.h>
27 #include <sound/core.h>
28 #include <sound/pcm.h>
29 #include <sound/soc.h>
30 #include <sound/compress_driver.h>
31 #include <asm/platform_sst_audio.h>
32 #include "../sst-mfld-platform.h"
34 #include "../../common/sst-dsp.h"
36 int sst_alloc_stream_mrfld(struct intel_sst_drv *sst_drv_ctx, void *params)
38 struct snd_sst_alloc_mrfld alloc_param;
39 struct snd_sst_params *str_params;
40 struct snd_sst_tstamp fw_tstamp;
41 struct stream_info *str_info;
42 struct snd_sst_alloc_response *response;
43 unsigned int str_id, pipe_id, task_id;
44 int i, num_ch, ret = 0;
47 dev_dbg(sst_drv_ctx->dev, "Enter\n");
49 str_params = (struct snd_sst_params *)params;
50 memset(&alloc_param, 0, sizeof(alloc_param));
51 alloc_param.operation = str_params->ops;
52 alloc_param.codec_type = str_params->codec;
53 alloc_param.sg_count = str_params->aparams.sg_count;
54 alloc_param.ring_buf_info[0].addr =
55 str_params->aparams.ring_buf_info[0].addr;
56 alloc_param.ring_buf_info[0].size =
57 str_params->aparams.ring_buf_info[0].size;
58 alloc_param.frag_size = str_params->aparams.frag_size;
60 memcpy(&alloc_param.codec_params, &str_params->sparams,
61 sizeof(struct snd_sst_stream_params));
64 * fill channel map params for multichannel support.
65 * Ideally channel map should be received from upper layers
66 * for multichannel support.
67 * Currently hardcoding as per FW reqm.
69 num_ch = sst_get_num_channel(str_params);
70 for (i = 0; i < 8; i++) {
72 alloc_param.codec_params.uc.pcm_params.channel_map[i] = i;
74 alloc_param.codec_params.uc.pcm_params.channel_map[i] = 0xFF;
77 str_id = str_params->stream_id;
78 str_info = get_stream_info(sst_drv_ctx, str_id);
79 if (str_info == NULL) {
80 dev_err(sst_drv_ctx->dev, "get stream info returned null\n");
84 pipe_id = str_params->device_type;
85 task_id = str_params->task;
86 sst_drv_ctx->streams[str_id].pipe_id = pipe_id;
87 sst_drv_ctx->streams[str_id].task_id = task_id;
88 sst_drv_ctx->streams[str_id].num_ch = num_ch;
90 if (sst_drv_ctx->info.lpe_viewpt_rqd)
91 alloc_param.ts = sst_drv_ctx->info.mailbox_start +
92 sst_drv_ctx->tstamp + (str_id * sizeof(fw_tstamp));
94 alloc_param.ts = sst_drv_ctx->mailbox_add +
95 sst_drv_ctx->tstamp + (str_id * sizeof(fw_tstamp));
97 dev_dbg(sst_drv_ctx->dev, "alloc tstamp location = 0x%x\n",
99 dev_dbg(sst_drv_ctx->dev, "assigned pipe id 0x%x to task %d\n",
102 /* allocate device type context */
103 sst_init_stream(&sst_drv_ctx->streams[str_id], alloc_param.codec_type,
104 str_id, alloc_param.operation, 0);
106 dev_dbg(sst_drv_ctx->dev, "Alloc for str %d pipe %#x\n",
108 ret = sst_prepare_and_post_msg(sst_drv_ctx, task_id, IPC_CMD,
109 IPC_IA_ALLOC_STREAM_MRFLD, pipe_id, sizeof(alloc_param),
110 &alloc_param, &data, true, true, false, true);
113 dev_err(sst_drv_ctx->dev, "FW alloc failed ret %d\n", ret);
114 /* alloc failed, so reset the state to uninit */
115 str_info->status = STREAM_UN_INIT;
118 response = (struct snd_sst_alloc_response *)data;
119 ret = response->str_type.result;
122 dev_err(sst_drv_ctx->dev, "FW alloc failed ret %d\n", ret);
123 if (ret == SST_ERR_STREAM_IN_USE) {
124 dev_err(sst_drv_ctx->dev,
125 "FW not in clean state, send free for:%d\n", str_id);
126 sst_free_stream(sst_drv_ctx, str_id);
136 * sst_start_stream - Send msg for a starting stream
139 * This function is called by any function which wants to start
142 int sst_start_stream(struct intel_sst_drv *sst_drv_ctx, int str_id)
145 struct stream_info *str_info;
148 dev_dbg(sst_drv_ctx->dev, "sst_start_stream for %d\n", str_id);
149 str_info = get_stream_info(sst_drv_ctx, str_id);
152 if (str_info->status != STREAM_RUNNING)
155 retval = sst_prepare_and_post_msg(sst_drv_ctx, str_info->task_id,
156 IPC_CMD, IPC_IA_START_STREAM_MRFLD, str_info->pipe_id,
157 sizeof(u16), &data, NULL, true, true, true, false);
162 int sst_send_byte_stream_mrfld(struct intel_sst_drv *sst_drv_ctx,
163 struct snd_sst_bytes_v2 *bytes)
164 { struct ipc_post *msg = NULL;
167 struct sst_block *block = NULL;
169 dev_dbg(sst_drv_ctx->dev,
170 "type:%u ipc_msg:%u block:%u task_id:%u pipe: %#x length:%#x\n",
171 bytes->type, bytes->ipc_msg, bytes->block, bytes->task_id,
172 bytes->pipe_id, bytes->len);
174 if (sst_create_ipc_msg(&msg, true))
177 pvt_id = sst_assign_pvt_id(sst_drv_ctx);
178 sst_fill_header_mrfld(&msg->mrfld_header, bytes->ipc_msg,
179 bytes->task_id, 1, pvt_id);
180 msg->mrfld_header.p.header_high.part.res_rqd = bytes->block;
182 msg->mrfld_header.p.header_low_payload = length;
183 dev_dbg(sst_drv_ctx->dev, "length is %d\n", length);
184 memcpy(msg->mailbox_data, &bytes->bytes, bytes->len);
186 block = sst_create_block(sst_drv_ctx, bytes->ipc_msg, pvt_id);
194 sst_add_to_dispatch_list_and_post(sst_drv_ctx, msg);
195 dev_dbg(sst_drv_ctx->dev, "msg->mrfld_header.p.header_low_payload:%d",
196 msg->mrfld_header.p.header_low_payload);
199 ret = sst_wait_timeout(sst_drv_ctx, block);
201 dev_err(sst_drv_ctx->dev, "fw returned err %d\n", ret);
202 sst_free_block(sst_drv_ctx, block);
206 if (bytes->type == SND_SST_BYTES_GET) {
208 * copy the reply and send back
209 * we need to update only sz and payload
212 unsigned char *r = block->data;
214 dev_dbg(sst_drv_ctx->dev, "read back %d bytes",
216 memcpy(bytes->bytes, r, bytes->len);
220 sst_free_block(sst_drv_ctx, block);
222 test_and_clear_bit(pvt_id, &sst_drv_ctx->pvt_id);
227 * sst_pause_stream - Send msg for a pausing stream
230 * This function is called by any function which wants to pause
231 * an already running stream.
233 int sst_pause_stream(struct intel_sst_drv *sst_drv_ctx, int str_id)
236 struct stream_info *str_info;
238 dev_dbg(sst_drv_ctx->dev, "SST DBG:sst_pause_stream for %d\n", str_id);
239 str_info = get_stream_info(sst_drv_ctx, str_id);
242 if (str_info->status == STREAM_PAUSED)
244 if (str_info->status == STREAM_RUNNING ||
245 str_info->status == STREAM_INIT) {
246 if (str_info->prev == STREAM_UN_INIT)
249 retval = sst_prepare_and_post_msg(sst_drv_ctx, str_info->task_id, IPC_CMD,
250 IPC_IA_PAUSE_STREAM_MRFLD, str_info->pipe_id,
251 0, NULL, NULL, true, true, false, true);
254 str_info->prev = str_info->status;
255 str_info->status = STREAM_PAUSED;
256 } else if (retval == SST_ERR_INVALID_STREAM_ID) {
258 mutex_lock(&sst_drv_ctx->sst_lock);
259 sst_clean_stream(str_info);
260 mutex_unlock(&sst_drv_ctx->sst_lock);
264 dev_dbg(sst_drv_ctx->dev, "SST DBG:BADRQC for stream\n ");
271 * sst_resume_stream - Send msg for resuming stream
274 * This function is called by any function which wants to resume
275 * an already paused stream.
277 int sst_resume_stream(struct intel_sst_drv *sst_drv_ctx, int str_id)
280 struct stream_info *str_info;
282 dev_dbg(sst_drv_ctx->dev, "SST DBG:sst_resume_stream for %d\n", str_id);
283 str_info = get_stream_info(sst_drv_ctx, str_id);
286 if (str_info->status == STREAM_RUNNING)
288 if (str_info->status == STREAM_PAUSED) {
289 retval = sst_prepare_and_post_msg(sst_drv_ctx, str_info->task_id,
290 IPC_CMD, IPC_IA_RESUME_STREAM_MRFLD,
291 str_info->pipe_id, 0, NULL, NULL,
292 true, true, false, true);
295 if (str_info->prev == STREAM_RUNNING)
296 str_info->status = STREAM_RUNNING;
298 str_info->status = STREAM_INIT;
299 str_info->prev = STREAM_PAUSED;
300 } else if (retval == -SST_ERR_INVALID_STREAM_ID) {
302 mutex_lock(&sst_drv_ctx->sst_lock);
303 sst_clean_stream(str_info);
304 mutex_unlock(&sst_drv_ctx->sst_lock);
308 dev_err(sst_drv_ctx->dev, "SST ERR: BADQRC for stream\n");
316 * sst_drop_stream - Send msg for stopping stream
319 * This function is called by any function which wants to stop
322 int sst_drop_stream(struct intel_sst_drv *sst_drv_ctx, int str_id)
325 struct stream_info *str_info;
327 dev_dbg(sst_drv_ctx->dev, "SST DBG:sst_drop_stream for %d\n", str_id);
328 str_info = get_stream_info(sst_drv_ctx, str_id);
332 if (str_info->status != STREAM_UN_INIT) {
333 str_info->prev = STREAM_UN_INIT;
334 str_info->status = STREAM_INIT;
335 str_info->cumm_bytes = 0;
336 retval = sst_prepare_and_post_msg(sst_drv_ctx, str_info->task_id,
337 IPC_CMD, IPC_IA_DROP_STREAM_MRFLD,
338 str_info->pipe_id, 0, NULL, NULL,
339 true, true, true, false);
342 dev_dbg(sst_drv_ctx->dev, "BADQRC for stream, state %x\n",
349 * sst_drain_stream - Send msg for draining stream
352 * This function is called by any function which wants to drain
355 int sst_drain_stream(struct intel_sst_drv *sst_drv_ctx,
356 int str_id, bool partial_drain)
359 struct stream_info *str_info;
361 dev_dbg(sst_drv_ctx->dev, "SST DBG:sst_drain_stream for %d\n", str_id);
362 str_info = get_stream_info(sst_drv_ctx, str_id);
365 if (str_info->status != STREAM_RUNNING &&
366 str_info->status != STREAM_INIT &&
367 str_info->status != STREAM_PAUSED) {
368 dev_err(sst_drv_ctx->dev, "SST ERR: BADQRC for stream = %d\n",
373 retval = sst_prepare_and_post_msg(sst_drv_ctx, str_info->task_id, IPC_CMD,
374 IPC_IA_DRAIN_STREAM_MRFLD, str_info->pipe_id,
375 sizeof(u8), &partial_drain, NULL, true, true, false, false);
377 * with new non blocked drain implementation in core we dont need to
378 * wait for respsonse, and need to only invoke callback for drain
386 * sst_free_stream - Frees a stream
389 * This function is called by any function which wants to free
392 int sst_free_stream(struct intel_sst_drv *sst_drv_ctx, int str_id)
395 struct stream_info *str_info;
397 dev_dbg(sst_drv_ctx->dev, "SST DBG:sst_free_stream for %d\n", str_id);
399 mutex_lock(&sst_drv_ctx->sst_lock);
400 if (sst_drv_ctx->sst_state == SST_RESET) {
401 mutex_unlock(&sst_drv_ctx->sst_lock);
404 mutex_unlock(&sst_drv_ctx->sst_lock);
405 str_info = get_stream_info(sst_drv_ctx, str_id);
409 mutex_lock(&str_info->lock);
410 if (str_info->status != STREAM_UN_INIT) {
411 str_info->prev = str_info->status;
412 str_info->status = STREAM_UN_INIT;
413 mutex_unlock(&str_info->lock);
415 dev_dbg(sst_drv_ctx->dev, "Free for str %d pipe %#x\n",
416 str_id, str_info->pipe_id);
417 retval = sst_prepare_and_post_msg(sst_drv_ctx, str_info->task_id, IPC_CMD,
418 IPC_IA_FREE_STREAM_MRFLD, str_info->pipe_id, 0,
419 NULL, NULL, true, true, false, true);
421 dev_dbg(sst_drv_ctx->dev, "sst: wait for free returned %d\n",
423 mutex_lock(&sst_drv_ctx->sst_lock);
424 sst_clean_stream(str_info);
425 mutex_unlock(&sst_drv_ctx->sst_lock);
426 dev_dbg(sst_drv_ctx->dev, "SST DBG:Stream freed\n");
428 mutex_unlock(&str_info->lock);
430 dev_dbg(sst_drv_ctx->dev, "SST DBG:BADQRC for stream\n");