2 * skl-pcm.c -ASoC HDA Platform driver file implementing PCM functionality
4 * Copyright (C) 2014-2015 Intel Corp
5 * Author: Jeeja KP <jeeja.kp@intel.com>
7 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; version 2 of the License.
13 * This program is distributed in the hope that it will be useful, but
14 * WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * General Public License for more details.
18 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
22 #include <linux/pci.h>
23 #include <linux/pm_runtime.h>
24 #include <sound/pcm_params.h>
25 #include <sound/soc.h>
27 #include "skl-topology.h"
28 #include "skl-sst-dsp.h"
29 #include "skl-sst-ipc.h"
35 static struct snd_pcm_hardware azx_pcm_hw
= {
36 .info
= (SNDRV_PCM_INFO_MMAP
|
37 SNDRV_PCM_INFO_INTERLEAVED
|
38 SNDRV_PCM_INFO_BLOCK_TRANSFER
|
39 SNDRV_PCM_INFO_MMAP_VALID
|
40 SNDRV_PCM_INFO_PAUSE
|
41 SNDRV_PCM_INFO_RESUME
|
42 SNDRV_PCM_INFO_SYNC_START
|
43 SNDRV_PCM_INFO_HAS_WALL_CLOCK
| /* legacy */
44 SNDRV_PCM_INFO_HAS_LINK_ATIME
|
45 SNDRV_PCM_INFO_NO_PERIOD_WAKEUP
),
46 .formats
= SNDRV_PCM_FMTBIT_S16_LE
|
47 SNDRV_PCM_FMTBIT_S32_LE
|
48 SNDRV_PCM_FMTBIT_S24_LE
,
49 .rates
= SNDRV_PCM_RATE_48000
| SNDRV_PCM_RATE_16000
|
54 .channels_max
= HDA_QUAD
,
55 .buffer_bytes_max
= AZX_MAX_BUF_SIZE
,
56 .period_bytes_min
= 128,
57 .period_bytes_max
= AZX_MAX_BUF_SIZE
/ 2,
59 .periods_max
= AZX_MAX_FRAG
,
64 struct hdac_ext_stream
*get_hdac_ext_stream(struct snd_pcm_substream
*substream
)
66 return substream
->runtime
->private_data
;
69 static struct hdac_ext_bus
*get_bus_ctx(struct snd_pcm_substream
*substream
)
71 struct hdac_ext_stream
*stream
= get_hdac_ext_stream(substream
);
72 struct hdac_stream
*hstream
= hdac_stream(stream
);
73 struct hdac_bus
*bus
= hstream
->bus
;
75 return hbus_to_ebus(bus
);
78 static int skl_substream_alloc_pages(struct hdac_ext_bus
*ebus
,
79 struct snd_pcm_substream
*substream
,
82 struct hdac_ext_stream
*stream
= get_hdac_ext_stream(substream
);
84 hdac_stream(stream
)->bufsize
= 0;
85 hdac_stream(stream
)->period_bytes
= 0;
86 hdac_stream(stream
)->format_val
= 0;
88 return snd_pcm_lib_malloc_pages(substream
, size
);
91 static int skl_substream_free_pages(struct hdac_bus
*bus
,
92 struct snd_pcm_substream
*substream
)
94 return snd_pcm_lib_free_pages(substream
);
97 static void skl_set_pcm_constrains(struct hdac_ext_bus
*ebus
,
98 struct snd_pcm_runtime
*runtime
)
100 snd_pcm_hw_constraint_integer(runtime
, SNDRV_PCM_HW_PARAM_PERIODS
);
102 /* avoid wrap-around with wall-clock */
103 snd_pcm_hw_constraint_minmax(runtime
, SNDRV_PCM_HW_PARAM_BUFFER_TIME
,
107 static enum hdac_ext_stream_type
skl_get_host_stream_type(struct hdac_ext_bus
*ebus
)
110 return HDAC_EXT_STREAM_TYPE_HOST
;
112 return HDAC_EXT_STREAM_TYPE_COUPLED
;
116 * check if the stream opened is marked as ignore_suspend by machine, if so
117 * then enable suspend_active refcount
119 * The count supend_active does not need lock as it is used in open/close
120 * and suspend context
122 static void skl_set_suspend_active(struct snd_pcm_substream
*substream
,
123 struct snd_soc_dai
*dai
, bool enable
)
125 struct hdac_ext_bus
*ebus
= dev_get_drvdata(dai
->dev
);
126 struct snd_soc_dapm_widget
*w
;
127 struct skl
*skl
= ebus_to_skl(ebus
);
129 if (substream
->stream
== SNDRV_PCM_STREAM_PLAYBACK
)
130 w
= dai
->playback_widget
;
132 w
= dai
->capture_widget
;
134 if (w
->ignore_suspend
&& enable
)
135 skl
->supend_active
++;
136 else if (w
->ignore_suspend
&& !enable
)
137 skl
->supend_active
--;
140 static int skl_pcm_open(struct snd_pcm_substream
*substream
,
141 struct snd_soc_dai
*dai
)
143 struct hdac_ext_bus
*ebus
= dev_get_drvdata(dai
->dev
);
144 struct hdac_ext_stream
*stream
;
145 struct snd_pcm_runtime
*runtime
= substream
->runtime
;
146 struct skl_dma_params
*dma_params
;
148 dev_dbg(dai
->dev
, "%s: %s\n", __func__
, dai
->name
);
150 stream
= snd_hdac_ext_stream_assign(ebus
, substream
,
151 skl_get_host_stream_type(ebus
));
155 skl_set_pcm_constrains(ebus
, runtime
);
158 * disable WALLCLOCK timestamps for capture streams
159 * until we figure out how to handle digital inputs
161 if (substream
->stream
== SNDRV_PCM_STREAM_CAPTURE
) {
162 runtime
->hw
.info
&= ~SNDRV_PCM_INFO_HAS_WALL_CLOCK
; /* legacy */
163 runtime
->hw
.info
&= ~SNDRV_PCM_INFO_HAS_LINK_ATIME
;
166 runtime
->private_data
= stream
;
168 dma_params
= kzalloc(sizeof(*dma_params
), GFP_KERNEL
);
172 dma_params
->stream_tag
= hdac_stream(stream
)->stream_tag
;
173 snd_soc_dai_set_dma_data(dai
, substream
, dma_params
);
175 dev_dbg(dai
->dev
, "stream tag set in dma params=%d\n",
176 dma_params
->stream_tag
);
177 skl_set_suspend_active(substream
, dai
, true);
178 snd_pcm_set_sync(substream
);
183 static int skl_get_format(struct snd_pcm_substream
*substream
,
184 struct snd_soc_dai
*dai
)
186 struct snd_soc_pcm_runtime
*rtd
= snd_pcm_substream_chip(substream
);
187 struct skl_dma_params
*dma_params
;
188 struct hdac_ext_bus
*ebus
= dev_get_drvdata(dai
->dev
);
192 struct snd_pcm_runtime
*runtime
= substream
->runtime
;
194 format_val
= snd_hdac_calc_stream_format(runtime
->rate
,
199 struct snd_soc_dai
*codec_dai
= rtd
->codec_dai
;
201 dma_params
= snd_soc_dai_get_dma_data(codec_dai
, substream
);
203 format_val
= dma_params
->format
;
209 static int skl_pcm_prepare(struct snd_pcm_substream
*substream
,
210 struct snd_soc_dai
*dai
)
212 struct hdac_ext_stream
*stream
= get_hdac_ext_stream(substream
);
213 unsigned int format_val
;
216 dev_dbg(dai
->dev
, "%s: %s\n", __func__
, dai
->name
);
218 format_val
= skl_get_format(substream
, dai
);
219 dev_dbg(dai
->dev
, "stream_tag=%d formatvalue=%d\n",
220 hdac_stream(stream
)->stream_tag
, format_val
);
221 snd_hdac_stream_reset(hdac_stream(stream
));
223 err
= snd_hdac_stream_set_params(hdac_stream(stream
), format_val
);
227 err
= snd_hdac_stream_setup(hdac_stream(stream
));
231 hdac_stream(stream
)->prepared
= 1;
236 static int skl_pcm_hw_params(struct snd_pcm_substream
*substream
,
237 struct snd_pcm_hw_params
*params
,
238 struct snd_soc_dai
*dai
)
240 struct hdac_ext_bus
*ebus
= dev_get_drvdata(dai
->dev
);
241 struct hdac_ext_stream
*stream
= get_hdac_ext_stream(substream
);
242 struct snd_pcm_runtime
*runtime
= substream
->runtime
;
243 struct skl_pipe_params p_params
= {0};
244 struct skl_module_cfg
*m_cfg
;
247 dev_dbg(dai
->dev
, "%s: %s\n", __func__
, dai
->name
);
248 ret
= skl_substream_alloc_pages(ebus
, substream
,
249 params_buffer_bytes(params
));
253 dev_dbg(dai
->dev
, "format_val, rate=%d, ch=%d, format=%d\n",
254 runtime
->rate
, runtime
->channels
, runtime
->format
);
256 dma_id
= hdac_stream(stream
)->stream_tag
- 1;
257 dev_dbg(dai
->dev
, "dma_id=%d\n", dma_id
);
259 p_params
.s_fmt
= snd_pcm_format_width(params_format(params
));
260 p_params
.ch
= params_channels(params
);
261 p_params
.s_freq
= params_rate(params
);
262 p_params
.host_dma_id
= dma_id
;
263 p_params
.stream
= substream
->stream
;
265 m_cfg
= skl_tplg_fe_get_cpr_module(dai
, p_params
.stream
);
267 skl_tplg_update_pipe_params(dai
->dev
, m_cfg
, &p_params
);
272 static void skl_pcm_close(struct snd_pcm_substream
*substream
,
273 struct snd_soc_dai
*dai
)
275 struct hdac_ext_stream
*stream
= get_hdac_ext_stream(substream
);
276 struct hdac_ext_bus
*ebus
= dev_get_drvdata(dai
->dev
);
277 struct skl_dma_params
*dma_params
= NULL
;
278 struct skl
*skl
= ebus_to_skl(ebus
);
280 dev_dbg(dai
->dev
, "%s: %s\n", __func__
, dai
->name
);
282 snd_hdac_ext_stream_release(stream
, skl_get_host_stream_type(ebus
));
284 dma_params
= snd_soc_dai_get_dma_data(dai
, substream
);
286 * now we should set this to NULL as we are freeing by the
289 snd_soc_dai_set_dma_data(dai
, substream
, NULL
);
290 skl_set_suspend_active(substream
, dai
, false);
293 * check if close is for "Reference Pin" and set back the
294 * CGCTL.MISCBDCGE if disabled by driver
296 if (!strncmp(dai
->name
, "Reference Pin", 13) &&
297 skl
->skl_sst
->miscbdcg_disabled
) {
298 skl
->skl_sst
->enable_miscbdcge(dai
->dev
, true);
299 skl
->skl_sst
->miscbdcg_disabled
= false;
305 static int skl_pcm_hw_free(struct snd_pcm_substream
*substream
,
306 struct snd_soc_dai
*dai
)
308 struct hdac_ext_bus
*ebus
= dev_get_drvdata(dai
->dev
);
309 struct hdac_ext_stream
*stream
= get_hdac_ext_stream(substream
);
311 dev_dbg(dai
->dev
, "%s: %s\n", __func__
, dai
->name
);
313 snd_hdac_stream_cleanup(hdac_stream(stream
));
314 hdac_stream(stream
)->prepared
= 0;
316 return skl_substream_free_pages(ebus_to_hbus(ebus
), substream
);
319 static int skl_be_hw_params(struct snd_pcm_substream
*substream
,
320 struct snd_pcm_hw_params
*params
,
321 struct snd_soc_dai
*dai
)
323 struct skl_pipe_params p_params
= {0};
325 p_params
.s_fmt
= snd_pcm_format_width(params_format(params
));
326 p_params
.ch
= params_channels(params
);
327 p_params
.s_freq
= params_rate(params
);
328 p_params
.stream
= substream
->stream
;
330 return skl_tplg_be_update_params(dai
, &p_params
);
333 static int skl_decoupled_trigger(struct snd_pcm_substream
*substream
,
336 struct hdac_ext_bus
*ebus
= get_bus_ctx(substream
);
337 struct hdac_bus
*bus
= ebus_to_hbus(ebus
);
338 struct hdac_ext_stream
*stream
;
340 unsigned long cookie
;
341 struct hdac_stream
*hstr
;
343 stream
= get_hdac_ext_stream(substream
);
344 hstr
= hdac_stream(stream
);
350 case SNDRV_PCM_TRIGGER_START
:
351 case SNDRV_PCM_TRIGGER_PAUSE_RELEASE
:
352 case SNDRV_PCM_TRIGGER_RESUME
:
356 case SNDRV_PCM_TRIGGER_PAUSE_PUSH
:
357 case SNDRV_PCM_TRIGGER_SUSPEND
:
358 case SNDRV_PCM_TRIGGER_STOP
:
366 spin_lock_irqsave(&bus
->reg_lock
, cookie
);
369 snd_hdac_stream_start(hdac_stream(stream
), true);
370 snd_hdac_stream_timecounter_init(hstr
, 0);
372 snd_hdac_stream_stop(hdac_stream(stream
));
375 spin_unlock_irqrestore(&bus
->reg_lock
, cookie
);
380 static int skl_pcm_trigger(struct snd_pcm_substream
*substream
, int cmd
,
381 struct snd_soc_dai
*dai
)
383 struct skl
*skl
= get_skl_ctx(dai
->dev
);
384 struct skl_sst
*ctx
= skl
->skl_sst
;
385 struct skl_module_cfg
*mconfig
;
386 struct hdac_ext_bus
*ebus
= get_bus_ctx(substream
);
387 struct hdac_ext_stream
*stream
= get_hdac_ext_stream(substream
);
390 mconfig
= skl_tplg_fe_get_cpr_module(dai
, substream
->stream
);
395 case SNDRV_PCM_TRIGGER_RESUME
:
396 skl_pcm_prepare(substream
, dai
);
398 * enable DMA Resume enable bit for the stream, set the dpib
399 * & lpib position to resune before starting the DMA
401 snd_hdac_ext_stream_drsm_enable(ebus
, true,
402 hdac_stream(stream
)->index
);
403 snd_hdac_ext_stream_set_dpibr(ebus
, stream
, stream
->dpib
);
404 snd_hdac_ext_stream_set_lpib(stream
, stream
->lpib
);
406 case SNDRV_PCM_TRIGGER_START
:
407 case SNDRV_PCM_TRIGGER_PAUSE_RELEASE
:
409 * Start HOST DMA and Start FE Pipe.This is to make sure that
410 * there are no underrun/overrun in the case when the FE
411 * pipeline is started but there is a delay in starting the
412 * DMA channel on the host.
414 snd_hdac_ext_stream_decouple(ebus
, stream
, true);
415 ret
= skl_decoupled_trigger(substream
, cmd
);
418 return skl_run_pipe(ctx
, mconfig
->pipe
);
421 case SNDRV_PCM_TRIGGER_PAUSE_PUSH
:
422 case SNDRV_PCM_TRIGGER_SUSPEND
:
423 case SNDRV_PCM_TRIGGER_STOP
:
425 * Stop FE Pipe first and stop DMA. This is to make sure that
426 * there are no underrun/overrun in the case if there is a delay
427 * between the two operations.
429 ret
= skl_stop_pipe(ctx
, mconfig
->pipe
);
433 ret
= skl_decoupled_trigger(substream
, cmd
);
434 if (cmd
== SNDRV_PCM_TRIGGER_SUSPEND
) {
435 /* save the dpib and lpib positions */
436 stream
->dpib
= readl(ebus
->bus
.remap_addr
+
437 AZX_REG_VS_SDXDPIB_XBASE
+
438 (AZX_REG_VS_SDXDPIB_XINTERVAL
*
439 hdac_stream(stream
)->index
));
441 stream
->lpib
= snd_hdac_stream_get_pos_lpib(
442 hdac_stream(stream
));
443 snd_hdac_ext_stream_decouple(ebus
, stream
, false);
454 static int skl_link_hw_params(struct snd_pcm_substream
*substream
,
455 struct snd_pcm_hw_params
*params
,
456 struct snd_soc_dai
*dai
)
458 struct hdac_ext_bus
*ebus
= dev_get_drvdata(dai
->dev
);
459 struct hdac_ext_stream
*link_dev
;
460 struct snd_soc_pcm_runtime
*rtd
= snd_pcm_substream_chip(substream
);
461 struct skl_dma_params
*dma_params
;
462 struct snd_soc_dai
*codec_dai
= rtd
->codec_dai
;
463 struct skl_pipe_params p_params
= {0};
465 link_dev
= snd_hdac_ext_stream_assign(ebus
, substream
,
466 HDAC_EXT_STREAM_TYPE_LINK
);
470 snd_soc_dai_set_dma_data(dai
, substream
, (void *)link_dev
);
472 /* set the stream tag in the codec dai dma params */
473 dma_params
= (struct skl_dma_params
*)
474 snd_soc_dai_get_dma_data(codec_dai
, substream
);
476 dma_params
->stream_tag
= hdac_stream(link_dev
)->stream_tag
;
477 snd_soc_dai_set_dma_data(codec_dai
, substream
, (void *)dma_params
);
479 p_params
.s_fmt
= snd_pcm_format_width(params_format(params
));
480 p_params
.ch
= params_channels(params
);
481 p_params
.s_freq
= params_rate(params
);
482 p_params
.stream
= substream
->stream
;
483 p_params
.link_dma_id
= hdac_stream(link_dev
)->stream_tag
- 1;
485 return skl_tplg_be_update_params(dai
, &p_params
);
488 static int skl_link_pcm_prepare(struct snd_pcm_substream
*substream
,
489 struct snd_soc_dai
*dai
)
491 struct snd_soc_pcm_runtime
*rtd
= snd_pcm_substream_chip(substream
);
492 struct hdac_ext_bus
*ebus
= dev_get_drvdata(dai
->dev
);
493 struct hdac_ext_stream
*link_dev
=
494 snd_soc_dai_get_dma_data(dai
, substream
);
495 unsigned int format_val
= 0;
496 struct skl_dma_params
*dma_params
;
497 struct snd_soc_dai
*codec_dai
= rtd
->codec_dai
;
498 struct hdac_ext_link
*link
;
500 dma_params
= (struct skl_dma_params
*)
501 snd_soc_dai_get_dma_data(codec_dai
, substream
);
503 format_val
= dma_params
->format
;
504 dev_dbg(dai
->dev
, "stream_tag=%d formatvalue=%d codec_dai_name=%s\n",
505 hdac_stream(link_dev
)->stream_tag
, format_val
, codec_dai
->name
);
507 link
= snd_hdac_ext_bus_get_link(ebus
, rtd
->codec
->component
.name
);
511 snd_hdac_ext_bus_link_power_up(link
);
512 snd_hdac_ext_link_stream_reset(link_dev
);
514 snd_hdac_ext_link_stream_setup(link_dev
, format_val
);
516 snd_hdac_ext_link_set_stream_id(link
, hdac_stream(link_dev
)->stream_tag
);
517 link_dev
->link_prepared
= 1;
522 static int skl_link_pcm_trigger(struct snd_pcm_substream
*substream
,
523 int cmd
, struct snd_soc_dai
*dai
)
525 struct hdac_ext_stream
*link_dev
=
526 snd_soc_dai_get_dma_data(dai
, substream
);
527 struct hdac_ext_bus
*ebus
= get_bus_ctx(substream
);
528 struct hdac_ext_stream
*stream
= get_hdac_ext_stream(substream
);
530 dev_dbg(dai
->dev
, "In %s cmd=%d\n", __func__
, cmd
);
532 case SNDRV_PCM_TRIGGER_RESUME
:
533 skl_link_pcm_prepare(substream
, dai
);
534 case SNDRV_PCM_TRIGGER_START
:
535 case SNDRV_PCM_TRIGGER_PAUSE_RELEASE
:
536 snd_hdac_ext_stream_decouple(ebus
, stream
, true);
537 snd_hdac_ext_link_stream_start(link_dev
);
540 case SNDRV_PCM_TRIGGER_PAUSE_PUSH
:
541 case SNDRV_PCM_TRIGGER_SUSPEND
:
542 case SNDRV_PCM_TRIGGER_STOP
:
543 snd_hdac_ext_link_stream_clear(link_dev
);
544 if (cmd
== SNDRV_PCM_TRIGGER_SUSPEND
)
545 snd_hdac_ext_stream_decouple(ebus
, stream
, false);
554 static int skl_link_hw_free(struct snd_pcm_substream
*substream
,
555 struct snd_soc_dai
*dai
)
557 struct hdac_ext_bus
*ebus
= dev_get_drvdata(dai
->dev
);
558 struct snd_soc_pcm_runtime
*rtd
= snd_pcm_substream_chip(substream
);
559 struct hdac_ext_stream
*link_dev
=
560 snd_soc_dai_get_dma_data(dai
, substream
);
561 struct hdac_ext_link
*link
;
563 dev_dbg(dai
->dev
, "%s: %s\n", __func__
, dai
->name
);
565 link_dev
->link_prepared
= 0;
567 link
= snd_hdac_ext_bus_get_link(ebus
, rtd
->codec
->component
.name
);
571 snd_hdac_ext_link_clear_stream_id(link
, hdac_stream(link_dev
)->stream_tag
);
572 snd_hdac_ext_stream_release(link_dev
, HDAC_EXT_STREAM_TYPE_LINK
);
576 static struct snd_soc_dai_ops skl_pcm_dai_ops
= {
577 .startup
= skl_pcm_open
,
578 .shutdown
= skl_pcm_close
,
579 .prepare
= skl_pcm_prepare
,
580 .hw_params
= skl_pcm_hw_params
,
581 .hw_free
= skl_pcm_hw_free
,
582 .trigger
= skl_pcm_trigger
,
585 static struct snd_soc_dai_ops skl_dmic_dai_ops
= {
586 .hw_params
= skl_be_hw_params
,
589 static struct snd_soc_dai_ops skl_be_ssp_dai_ops
= {
590 .hw_params
= skl_be_hw_params
,
593 static struct snd_soc_dai_ops skl_link_dai_ops
= {
594 .prepare
= skl_link_pcm_prepare
,
595 .hw_params
= skl_link_hw_params
,
596 .hw_free
= skl_link_hw_free
,
597 .trigger
= skl_link_pcm_trigger
,
600 static struct snd_soc_dai_driver skl_platform_dai
[] = {
602 .name
= "System Pin",
603 .ops
= &skl_pcm_dai_ops
,
605 .stream_name
= "System Playback",
606 .channels_min
= HDA_MONO
,
607 .channels_max
= HDA_STEREO
,
608 .rates
= SNDRV_PCM_RATE_48000
| SNDRV_PCM_RATE_16000
| SNDRV_PCM_RATE_8000
,
609 .formats
= SNDRV_PCM_FMTBIT_S16_LE
| SNDRV_PCM_FMTBIT_S24_LE
,
612 .stream_name
= "System Capture",
613 .channels_min
= HDA_MONO
,
614 .channels_max
= HDA_STEREO
,
615 .rates
= SNDRV_PCM_RATE_48000
| SNDRV_PCM_RATE_16000
,
616 .formats
= SNDRV_PCM_FMTBIT_S16_LE
| SNDRV_PCM_FMTBIT_S24_LE
,
620 .name
= "Reference Pin",
621 .ops
= &skl_pcm_dai_ops
,
623 .stream_name
= "Reference Capture",
624 .channels_min
= HDA_MONO
,
625 .channels_max
= HDA_QUAD
,
626 .rates
= SNDRV_PCM_RATE_48000
| SNDRV_PCM_RATE_16000
,
627 .formats
= SNDRV_PCM_FMTBIT_S16_LE
| SNDRV_PCM_FMTBIT_S24_LE
,
631 .name
= "Deepbuffer Pin",
632 .ops
= &skl_pcm_dai_ops
,
634 .stream_name
= "Deepbuffer Playback",
635 .channels_min
= HDA_STEREO
,
636 .channels_max
= HDA_STEREO
,
637 .rates
= SNDRV_PCM_RATE_48000
,
638 .formats
= SNDRV_PCM_FMTBIT_S16_LE
| SNDRV_PCM_FMTBIT_S24_LE
,
642 .name
= "LowLatency Pin",
643 .ops
= &skl_pcm_dai_ops
,
645 .stream_name
= "Low Latency Playback",
646 .channels_min
= HDA_STEREO
,
647 .channels_max
= HDA_STEREO
,
648 .rates
= SNDRV_PCM_RATE_48000
,
649 .formats
= SNDRV_PCM_FMTBIT_S16_LE
| SNDRV_PCM_FMTBIT_S24_LE
,
654 .ops
= &skl_pcm_dai_ops
,
656 .stream_name
= "DMIC Capture",
657 .channels_min
= HDA_MONO
,
658 .channels_max
= HDA_QUAD
,
659 .rates
= SNDRV_PCM_RATE_48000
| SNDRV_PCM_RATE_16000
,
660 .formats
= SNDRV_PCM_FMTBIT_S16_LE
| SNDRV_PCM_FMTBIT_S24_LE
,
667 .ops
= &skl_be_ssp_dai_ops
,
669 .stream_name
= "ssp0 Tx",
670 .channels_min
= HDA_STEREO
,
671 .channels_max
= HDA_STEREO
,
672 .rates
= SNDRV_PCM_RATE_48000
,
673 .formats
= SNDRV_PCM_FMTBIT_S16_LE
,
676 .stream_name
= "ssp0 Rx",
677 .channels_min
= HDA_STEREO
,
678 .channels_max
= HDA_STEREO
,
679 .rates
= SNDRV_PCM_RATE_48000
,
680 .formats
= SNDRV_PCM_FMTBIT_S16_LE
,
685 .ops
= &skl_be_ssp_dai_ops
,
687 .stream_name
= "ssp1 Tx",
688 .channels_min
= HDA_STEREO
,
689 .channels_max
= HDA_STEREO
,
690 .rates
= SNDRV_PCM_RATE_48000
,
691 .formats
= SNDRV_PCM_FMTBIT_S16_LE
,
694 .stream_name
= "ssp1 Rx",
695 .channels_min
= HDA_STEREO
,
696 .channels_max
= HDA_STEREO
,
697 .rates
= SNDRV_PCM_RATE_48000
,
698 .formats
= SNDRV_PCM_FMTBIT_S16_LE
,
703 .ops
= &skl_link_dai_ops
,
705 .stream_name
= "iDisp Tx",
706 .channels_min
= HDA_STEREO
,
707 .channels_max
= HDA_STEREO
,
708 .rates
= SNDRV_PCM_RATE_8000
|SNDRV_PCM_RATE_16000
|SNDRV_PCM_RATE_48000
,
709 .formats
= SNDRV_PCM_FMTBIT_S16_LE
,
713 .name
= "DMIC01 Pin",
714 .ops
= &skl_dmic_dai_ops
,
716 .stream_name
= "DMIC01 Rx",
717 .channels_min
= HDA_MONO
,
718 .channels_max
= HDA_QUAD
,
719 .rates
= SNDRV_PCM_RATE_48000
| SNDRV_PCM_RATE_16000
,
720 .formats
= SNDRV_PCM_FMTBIT_S16_LE
| SNDRV_PCM_FMTBIT_S24_LE
,
724 .name
= "HD-Codec Pin",
725 .ops
= &skl_link_dai_ops
,
727 .stream_name
= "HD-Codec Tx",
728 .channels_min
= HDA_STEREO
,
729 .channels_max
= HDA_STEREO
,
730 .rates
= SNDRV_PCM_RATE_48000
,
731 .formats
= SNDRV_PCM_FMTBIT_S16_LE
,
734 .stream_name
= "HD-Codec Rx",
735 .channels_min
= HDA_STEREO
,
736 .channels_max
= HDA_STEREO
,
737 .rates
= SNDRV_PCM_RATE_48000
,
738 .formats
= SNDRV_PCM_FMTBIT_S16_LE
,
743 static int skl_platform_open(struct snd_pcm_substream
*substream
)
745 struct snd_pcm_runtime
*runtime
;
746 struct snd_soc_pcm_runtime
*rtd
= substream
->private_data
;
747 struct snd_soc_dai_link
*dai_link
= rtd
->dai_link
;
749 dev_dbg(rtd
->cpu_dai
->dev
, "In %s:%s\n", __func__
,
750 dai_link
->cpu_dai_name
);
752 runtime
= substream
->runtime
;
753 snd_soc_set_runtime_hwparams(substream
, &azx_pcm_hw
);
758 static int skl_coupled_trigger(struct snd_pcm_substream
*substream
,
761 struct hdac_ext_bus
*ebus
= get_bus_ctx(substream
);
762 struct hdac_bus
*bus
= ebus_to_hbus(ebus
);
763 struct hdac_ext_stream
*stream
;
764 struct snd_pcm_substream
*s
;
767 unsigned long cookie
;
768 struct hdac_stream
*hstr
;
770 stream
= get_hdac_ext_stream(substream
);
771 hstr
= hdac_stream(stream
);
773 dev_dbg(bus
->dev
, "In %s cmd=%d\n", __func__
, cmd
);
779 case SNDRV_PCM_TRIGGER_START
:
780 case SNDRV_PCM_TRIGGER_PAUSE_RELEASE
:
781 case SNDRV_PCM_TRIGGER_RESUME
:
785 case SNDRV_PCM_TRIGGER_PAUSE_PUSH
:
786 case SNDRV_PCM_TRIGGER_SUSPEND
:
787 case SNDRV_PCM_TRIGGER_STOP
:
795 snd_pcm_group_for_each_entry(s
, substream
) {
796 if (s
->pcm
->card
!= substream
->pcm
->card
)
798 stream
= get_hdac_ext_stream(s
);
799 sbits
|= 1 << hdac_stream(stream
)->index
;
800 snd_pcm_trigger_done(s
, substream
);
803 spin_lock_irqsave(&bus
->reg_lock
, cookie
);
805 /* first, set SYNC bits of corresponding streams */
806 snd_hdac_stream_sync_trigger(hstr
, true, sbits
, AZX_REG_SSYNC
);
808 snd_pcm_group_for_each_entry(s
, substream
) {
809 if (s
->pcm
->card
!= substream
->pcm
->card
)
811 stream
= get_hdac_ext_stream(s
);
813 snd_hdac_stream_start(hdac_stream(stream
), true);
815 snd_hdac_stream_stop(hdac_stream(stream
));
817 spin_unlock_irqrestore(&bus
->reg_lock
, cookie
);
819 snd_hdac_stream_sync(hstr
, start
, sbits
);
821 spin_lock_irqsave(&bus
->reg_lock
, cookie
);
823 /* reset SYNC bits */
824 snd_hdac_stream_sync_trigger(hstr
, false, sbits
, AZX_REG_SSYNC
);
826 snd_hdac_stream_timecounter_init(hstr
, sbits
);
827 spin_unlock_irqrestore(&bus
->reg_lock
, cookie
);
832 static int skl_platform_pcm_trigger(struct snd_pcm_substream
*substream
,
835 struct hdac_ext_bus
*ebus
= get_bus_ctx(substream
);
838 return skl_coupled_trigger(substream
, cmd
);
843 /* calculate runtime delay from LPIB */
844 static int skl_get_delay_from_lpib(struct hdac_ext_bus
*ebus
,
845 struct hdac_ext_stream
*sstream
,
848 struct hdac_bus
*bus
= ebus_to_hbus(ebus
);
849 struct hdac_stream
*hstream
= hdac_stream(sstream
);
850 struct snd_pcm_substream
*substream
= hstream
->substream
;
851 int stream
= substream
->stream
;
852 unsigned int lpib_pos
= snd_hdac_stream_get_pos_lpib(hstream
);
855 if (stream
== SNDRV_PCM_STREAM_PLAYBACK
)
856 delay
= pos
- lpib_pos
;
858 delay
= lpib_pos
- pos
;
861 if (delay
>= hstream
->delay_negative_threshold
)
864 delay
+= hstream
->bufsize
;
867 if (delay
>= hstream
->period_bytes
) {
869 "Unstable LPIB (%d >= %d); disabling LPIB delay counting\n",
870 delay
, hstream
->period_bytes
);
874 return bytes_to_frames(substream
->runtime
, delay
);
877 static unsigned int skl_get_position(struct hdac_ext_stream
*hstream
,
880 struct hdac_stream
*hstr
= hdac_stream(hstream
);
881 struct snd_pcm_substream
*substream
= hstr
->substream
;
882 struct hdac_ext_bus
*ebus
;
886 /* use the position buffer as default */
887 pos
= snd_hdac_stream_get_pos_posbuf(hdac_stream(hstream
));
889 if (pos
>= hdac_stream(hstream
)->bufsize
)
892 if (substream
->runtime
) {
893 ebus
= get_bus_ctx(substream
);
894 delay
= skl_get_delay_from_lpib(ebus
, hstream
, pos
)
896 substream
->runtime
->delay
+= delay
;
902 static snd_pcm_uframes_t skl_platform_pcm_pointer
903 (struct snd_pcm_substream
*substream
)
905 struct hdac_ext_stream
*hstream
= get_hdac_ext_stream(substream
);
907 return bytes_to_frames(substream
->runtime
,
908 skl_get_position(hstream
, 0));
911 static u64
skl_adjust_codec_delay(struct snd_pcm_substream
*substream
,
914 struct snd_soc_pcm_runtime
*rtd
= snd_pcm_substream_chip(substream
);
915 struct snd_soc_dai
*codec_dai
= rtd
->codec_dai
;
916 u64 codec_frames
, codec_nsecs
;
918 if (!codec_dai
->driver
->ops
->delay
)
921 codec_frames
= codec_dai
->driver
->ops
->delay(substream
, codec_dai
);
922 codec_nsecs
= div_u64(codec_frames
* 1000000000LL,
923 substream
->runtime
->rate
);
925 if (substream
->stream
== SNDRV_PCM_STREAM_CAPTURE
)
926 return nsec
+ codec_nsecs
;
928 return (nsec
> codec_nsecs
) ? nsec
- codec_nsecs
: 0;
931 static int skl_get_time_info(struct snd_pcm_substream
*substream
,
932 struct timespec
*system_ts
, struct timespec
*audio_ts
,
933 struct snd_pcm_audio_tstamp_config
*audio_tstamp_config
,
934 struct snd_pcm_audio_tstamp_report
*audio_tstamp_report
)
936 struct hdac_ext_stream
*sstream
= get_hdac_ext_stream(substream
);
937 struct hdac_stream
*hstr
= hdac_stream(sstream
);
940 if ((substream
->runtime
->hw
.info
& SNDRV_PCM_INFO_HAS_LINK_ATIME
) &&
941 (audio_tstamp_config
->type_requested
== SNDRV_PCM_AUDIO_TSTAMP_TYPE_LINK
)) {
943 snd_pcm_gettime(substream
->runtime
, system_ts
);
945 nsec
= timecounter_read(&hstr
->tc
);
946 nsec
= div_u64(nsec
, 3); /* can be optimized */
947 if (audio_tstamp_config
->report_delay
)
948 nsec
= skl_adjust_codec_delay(substream
, nsec
);
950 *audio_ts
= ns_to_timespec(nsec
);
952 audio_tstamp_report
->actual_type
= SNDRV_PCM_AUDIO_TSTAMP_TYPE_LINK
;
953 audio_tstamp_report
->accuracy_report
= 1; /* rest of struct is valid */
954 audio_tstamp_report
->accuracy
= 42; /* 24MHzWallClk == 42ns resolution */
957 audio_tstamp_report
->actual_type
= SNDRV_PCM_AUDIO_TSTAMP_TYPE_DEFAULT
;
963 static struct snd_pcm_ops skl_platform_ops
= {
964 .open
= skl_platform_open
,
965 .ioctl
= snd_pcm_lib_ioctl
,
966 .trigger
= skl_platform_pcm_trigger
,
967 .pointer
= skl_platform_pcm_pointer
,
968 .get_time_info
= skl_get_time_info
,
969 .mmap
= snd_pcm_lib_default_mmap
,
970 .page
= snd_pcm_sgbuf_ops_page
,
973 static void skl_pcm_free(struct snd_pcm
*pcm
)
975 snd_pcm_lib_preallocate_free_for_all(pcm
);
978 #define MAX_PREALLOC_SIZE (32 * 1024 * 1024)
980 static int skl_pcm_new(struct snd_soc_pcm_runtime
*rtd
)
982 struct snd_soc_dai
*dai
= rtd
->cpu_dai
;
983 struct hdac_ext_bus
*ebus
= dev_get_drvdata(dai
->dev
);
984 struct snd_pcm
*pcm
= rtd
->pcm
;
987 struct skl
*skl
= ebus_to_skl(ebus
);
989 if (dai
->driver
->playback
.channels_min
||
990 dai
->driver
->capture
.channels_min
) {
991 /* buffer pre-allocation */
992 size
= CONFIG_SND_HDA_PREALLOC_SIZE
* 1024;
993 if (size
> MAX_PREALLOC_SIZE
)
994 size
= MAX_PREALLOC_SIZE
;
995 retval
= snd_pcm_lib_preallocate_pages_for_all(pcm
,
996 SNDRV_DMA_TYPE_DEV_SG
,
997 snd_dma_pci_data(skl
->pci
),
998 size
, MAX_PREALLOC_SIZE
);
1000 dev_err(dai
->dev
, "dma buffer allocationf fail\n");
1008 static int skl_platform_soc_probe(struct snd_soc_platform
*platform
)
1010 struct hdac_ext_bus
*ebus
= dev_get_drvdata(platform
->dev
);
1013 return skl_tplg_init(platform
, ebus
);
1017 static struct snd_soc_platform_driver skl_platform_drv
= {
1018 .probe
= skl_platform_soc_probe
,
1019 .ops
= &skl_platform_ops
,
1020 .pcm_new
= skl_pcm_new
,
1021 .pcm_free
= skl_pcm_free
,
1024 static const struct snd_soc_component_driver skl_component
= {
1028 int skl_platform_register(struct device
*dev
)
1031 struct hdac_ext_bus
*ebus
= dev_get_drvdata(dev
);
1032 struct skl
*skl
= ebus_to_skl(ebus
);
1034 INIT_LIST_HEAD(&skl
->ppl_list
);
1036 ret
= snd_soc_register_platform(dev
, &skl_platform_drv
);
1038 dev_err(dev
, "soc platform registration failed %d\n", ret
);
1041 ret
= snd_soc_register_component(dev
, &skl_component
,
1043 ARRAY_SIZE(skl_platform_dai
));
1045 dev_err(dev
, "soc component registration failed %d\n", ret
);
1046 snd_soc_unregister_platform(dev
);
1053 int skl_platform_unregister(struct device
*dev
)
1055 snd_soc_unregister_component(dev
);
1056 snd_soc_unregister_platform(dev
);