[linux-block.git] / sound / soc / sof / intel / hda-pcm.c

// SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause)
//
// This file is provided under a dual BSD/GPLv2 license.  When using or
// redistributing this file, you may do so under either license.
//
// Copyright(c) 2018 Intel Corporation. All rights reserved.
//
// Authors: Liam Girdwood <liam.r.girdwood@linux.intel.com>
//	    Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
//	    Rander Wang <rander.wang@intel.com>
//          Keyon Jie <yang.jie@linux.intel.com>
//

/*
 * Hardware interface for generic Intel audio DSP HDA IP
 */

#include <linux/moduleparam.h>
#include <sound/hda_register.h>
#include <sound/pcm_params.h>
#include <trace/events/sof_intel.h>
#include "../sof-audio.h"
#include "../ops.h"
#include "hda.h"

#define SDnFMT_BASE(x)	((x) << 14)
#define SDnFMT_MULT(x)	(((x) - 1) << 11)
#define SDnFMT_DIV(x)	(((x) - 1) << 8)
#define SDnFMT_BITS(x)	((x) << 4)
#define SDnFMT_CHAN(x)	((x) << 0)

static bool hda_always_enable_dmi_l1;
module_param_named(always_enable_dmi_l1, hda_always_enable_dmi_l1, bool, 0444);
MODULE_PARM_DESC(always_enable_dmi_l1, "SOF HDA always enable DMI l1");

static bool hda_disable_rewinds = IS_ENABLED(CONFIG_SND_SOC_SOF_HDA_DISABLE_REWINDS);
module_param_named(disable_rewinds, hda_disable_rewinds, bool, 0444);
MODULE_PARM_DESC(disable_rewinds, "SOF HDA disable rewinds");

u32 hda_dsp_get_mult_div(struct snd_sof_dev *sdev, int rate)
{
	switch (rate) {
	case 8000:
		return SDnFMT_DIV(6);
	case 9600:
		return SDnFMT_DIV(5);
	case 11025:
		return SDnFMT_BASE(1) | SDnFMT_DIV(4);
	case 16000:
		return SDnFMT_DIV(3);
	case 22050:
		return SDnFMT_BASE(1) | SDnFMT_DIV(2);
	case 32000:
		return SDnFMT_DIV(3) | SDnFMT_MULT(2);
	case 44100:
		return SDnFMT_BASE(1);
	case 48000:
		return 0;
	case 88200:
		return SDnFMT_BASE(1) | SDnFMT_MULT(2);
	case 96000:
		return SDnFMT_MULT(2);
	case 176400:
		return SDnFMT_BASE(1) | SDnFMT_MULT(4);
	case 192000:
		return SDnFMT_MULT(4);
	default:
		dev_warn(sdev->dev, "can't find div rate %d using 48kHz\n",
			 rate);
		return 0; /* use 48KHz if not found */
	}
};

u32 hda_dsp_get_bits(struct snd_sof_dev *sdev, int sample_bits)
{
	switch (sample_bits) {
	case 8:
		return SDnFMT_BITS(0);
	case 16:
		return SDnFMT_BITS(1);
	case 20:
		return SDnFMT_BITS(2);
	case 24:
		return SDnFMT_BITS(3);
	case 32:
		return SDnFMT_BITS(4);
	default:
		dev_warn(sdev->dev, "can't find %d bits using 16bit\n",
			 sample_bits);
		return SDnFMT_BITS(1); /* use 16bits format if not found */
	}
};

int hda_dsp_pcm_hw_params(struct snd_sof_dev *sdev,
			  struct snd_pcm_substream *substream,
			  struct snd_pcm_hw_params *params,
			  struct snd_sof_platform_stream_params *platform_params)
{
	struct hdac_stream *hstream = substream->runtime->private_data;
	struct hdac_ext_stream *hext_stream = stream_to_hdac_ext_stream(hstream);
	struct sof_intel_hda_dev *hda = sdev->pdata->hw_pdata;
	struct snd_dma_buffer *dmab;
	int ret;

	hstream->substream = substream;

	dmab = substream->runtime->dma_buffer_p;

	/*
	 * Use the codec required format val (which is link_bps adjusted) when
	 * the DSP is not in use
	 */
	if (!sdev->dspless_mode_selected) {
		u32 rate = hda_dsp_get_mult_div(sdev, params_rate(params));
		u32 bits = hda_dsp_get_bits(sdev, params_width(params));

		hstream->format_val = rate | bits | (params_channels(params) - 1);
	}

	hstream->bufsize = params_buffer_bytes(params);
	hstream->period_bytes = params_period_bytes(params);
	hstream->no_period_wakeup  =
			(params->info & SNDRV_PCM_INFO_NO_PERIOD_WAKEUP) &&
			(params->flags & SNDRV_PCM_HW_PARAMS_NO_PERIOD_WAKEUP);

	ret = hda_dsp_stream_hw_params(sdev, hext_stream, dmab, params);
	if (ret < 0) {
		dev_err(sdev->dev, "error: hdac prepare failed: %d\n", ret);
		return ret;
	}

	/* enable SPIB when rewinds are disabled */
	if (hda_disable_rewinds)
		hda_dsp_stream_spib_config(sdev, hext_stream, HDA_DSP_SPIB_ENABLE, 0);
	else
		hda_dsp_stream_spib_config(sdev, hext_stream, HDA_DSP_SPIB_DISABLE, 0);

	if (hda)
		platform_params->no_ipc_position = hda->no_ipc_position;

	platform_params->stream_tag = hstream->stream_tag;

	return 0;
}

/* update SPIB register with appl position */
int hda_dsp_pcm_ack(struct snd_sof_dev *sdev, struct snd_pcm_substream *substream)
{
	struct hdac_stream *hstream = substream->runtime->private_data;
	struct snd_pcm_runtime *runtime = substream->runtime;
	ssize_t appl_pos, buf_size;
	u32 spib;

	appl_pos = frames_to_bytes(runtime, runtime->control->appl_ptr);
	buf_size = frames_to_bytes(runtime, runtime->buffer_size);

	spib = appl_pos % buf_size;

	/* Allowable value for SPIB is 1 byte to max buffer size */
	if (!spib)
		spib = buf_size;

	sof_io_write(sdev, hstream->spib_addr, spib);

	return 0;
}

int hda_dsp_pcm_trigger(struct snd_sof_dev *sdev,
			struct snd_pcm_substream *substream, int cmd)
{
	struct hdac_stream *hstream = substream->runtime->private_data;
	struct hdac_ext_stream *hext_stream = stream_to_hdac_ext_stream(hstream);

	return hda_dsp_stream_trigger(sdev, hext_stream, cmd);
}

snd_pcm_uframes_t hda_dsp_pcm_pointer(struct snd_sof_dev *sdev,
				      struct snd_pcm_substream *substream)
{
	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
	struct snd_soc_component *scomp = sdev->component;
	struct hdac_stream *hstream = substream->runtime->private_data;
	struct sof_intel_hda_dev *hda = sdev->pdata->hw_pdata;
	struct snd_sof_pcm *spcm;
	snd_pcm_uframes_t pos;

	spcm = snd_sof_find_spcm_dai(scomp, rtd);
	if (!spcm) {
		dev_warn_ratelimited(sdev->dev, "warn: can't find PCM with DAI ID %d\n",
				     rtd->dai_link->id);
		return 0;
	}

	if (hda && !hda->no_ipc_position) {
		/* read position from IPC position */
		pos = spcm->stream[substream->stream].posn.host_posn;
		goto found;
	}

	pos = hda_dsp_stream_get_position(hstream, substream->stream, true);
found:
	pos = bytes_to_frames(substream->runtime, pos);

	trace_sof_intel_hda_dsp_pcm(sdev, hstream, substream, pos);
	return pos;
}

int hda_dsp_pcm_open(struct snd_sof_dev *sdev,
		     struct snd_pcm_substream *substream)
{
	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
	struct snd_pcm_runtime *runtime = substream->runtime;
	struct snd_soc_component *scomp = sdev->component;
	struct hdac_ext_stream *dsp_stream;
	struct snd_sof_pcm *spcm;
	int direction = substream->stream;
	u32 flags = 0;

	spcm = snd_sof_find_spcm_dai(scomp, rtd);
	if (!spcm) {
		dev_err(sdev->dev, "error: can't find PCM with DAI ID %d\n", rtd->dai_link->id);
		return -EINVAL;
	}

	/*
	 * if we want the .ack to work, we need to prevent the control from being mapped.
	 * The status can still be mapped.
	 */
	if (hda_disable_rewinds)
		runtime->hw.info |= SNDRV_PCM_INFO_NO_REWINDS | SNDRV_PCM_INFO_SYNC_APPLPTR;

	/*
	 * All playback streams are DMI L1 capable, capture streams need
	 * pause push/release to be disabled
	 */
	if (hda_always_enable_dmi_l1 && direction == SNDRV_PCM_STREAM_CAPTURE)
		runtime->hw.info &= ~SNDRV_PCM_INFO_PAUSE;

	if (hda_always_enable_dmi_l1 ||
	    direction == SNDRV_PCM_STREAM_PLAYBACK ||
	    spcm->stream[substream->stream].d0i3_compatible)
		flags |= SOF_HDA_STREAM_DMI_L1_COMPATIBLE;

	dsp_stream = hda_dsp_stream_get(sdev, direction, flags);
	if (!dsp_stream) {
		dev_err(sdev->dev, "error: no stream available\n");
		return -ENODEV;
	}

	/* minimum as per HDA spec */
	snd_pcm_hw_constraint_step(substream->runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 4);

	/* avoid circular buffer wrap in middle of period */
	snd_pcm_hw_constraint_integer(substream->runtime,
				      SNDRV_PCM_HW_PARAM_PERIODS);

	/* Only S16 and S32 supported by HDA hardware when used without DSP */
	if (sdev->dspless_mode_selected)
		snd_pcm_hw_constraint_mask64(substream->runtime, SNDRV_PCM_HW_PARAM_FORMAT,
					     SNDRV_PCM_FMTBIT_S16 | SNDRV_PCM_FMTBIT_S32);

	/* binding pcm substream to hda stream */
	substream->runtime->private_data = &dsp_stream->hstream;
	return 0;
}

int hda_dsp_pcm_close(struct snd_sof_dev *sdev,
		      struct snd_pcm_substream *substream)
{
	struct hdac_stream *hstream = substream->runtime->private_data;
	int direction = substream->stream;
	int ret;

	ret = hda_dsp_stream_put(sdev, direction, hstream->stream_tag);

	if (ret) {
		dev_dbg(sdev->dev, "stream %s not opened!\n", substream->name);
		return -ENODEV;
	}

	/* unbinding pcm substream to hda stream */
	substream->runtime->private_data = NULL;
	return 0;
}
Commit	Line	Data
e149ca29	1	// SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause)
c6be710f LG	2	//
	3	// This file is provided under a dual BSD/GPLv2 license. When using or
	4	// redistributing this file, you may do so under either license.
	5	//
	6	// Copyright(c) 2018 Intel Corporation. All rights reserved.
	7	//
	8	// Authors: Liam Girdwood <liam.r.girdwood@linux.intel.com>
	9	// Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
	10	// Rander Wang <rander.wang@intel.com>
	11	// Keyon Jie <yang.jie@linux.intel.com>
	12	//
	13
	14	/*
	15	* Hardware interface for generic Intel audio DSP HDA IP
	16	*/
	17
246dd428	18	#include <linux/moduleparam.h>
c6be710f LG	19	#include <sound/hda_register.h>
c6be710f LG	20	#include <sound/pcm_params.h>
d272b657	21	#include <trace/events/sof_intel.h>
ee1e79b7	22	#include "../sof-audio.h"
c6be710f LG	23	#include "../ops.h"
	24	#include "hda.h"
	25
	26	#define SDnFMT_BASE(x) ((x) << 14)
	27	#define SDnFMT_MULT(x) (((x) - 1) << 11)
	28	#define SDnFMT_DIV(x) (((x) - 1) << 8)
	29	#define SDnFMT_BITS(x) ((x) << 4)
	30	#define SDnFMT_CHAN(x) ((x) << 0)
	31
246dd428 PLB	32	static bool hda_always_enable_dmi_l1;
	33	module_param_named(always_enable_dmi_l1, hda_always_enable_dmi_l1, bool, 0444);
	34	MODULE_PARM_DESC(always_enable_dmi_l1, "SOF HDA always enable DMI l1");
	35
6c26b505 RS	36	static bool hda_disable_rewinds = IS_ENABLED(CONFIG_SND_SOC_SOF_HDA_DISABLE_REWINDS);
	37	module_param_named(disable_rewinds, hda_disable_rewinds, bool, 0444);
	38	MODULE_PARM_DESC(disable_rewinds, "SOF HDA disable rewinds");
	39
49d7948e	40	u32 hda_dsp_get_mult_div(struct snd_sof_dev *sdev, int rate)
c6be710f LG	41	{
	42	switch (rate) {
	43	case 8000:
	44	return SDnFMT_DIV(6);
	45	case 9600:
	46	return SDnFMT_DIV(5);
	47	case 11025:
	48	return SDnFMT_BASE(1) \| SDnFMT_DIV(4);
	49	case 16000:
	50	return SDnFMT_DIV(3);
	51	case 22050:
	52	return SDnFMT_BASE(1) \| SDnFMT_DIV(2);
	53	case 32000:
	54	return SDnFMT_DIV(3) \| SDnFMT_MULT(2);
	55	case 44100:
	56	return SDnFMT_BASE(1);
	57	case 48000:
	58	return 0;
	59	case 88200:
	60	return SDnFMT_BASE(1) \| SDnFMT_MULT(2);
	61	case 96000:
	62	return SDnFMT_MULT(2);
	63	case 176400:
	64	return SDnFMT_BASE(1) \| SDnFMT_MULT(4);
	65	case 192000:
	66	return SDnFMT_MULT(4);
	67	default:
	68	dev_warn(sdev->dev, "can't find div rate %d using 48kHz\n",
	69	rate);
	70	return 0; /* use 48KHz if not found */
	71	}
	72	};
	73
49d7948e	74	u32 hda_dsp_get_bits(struct snd_sof_dev *sdev, int sample_bits)
c6be710f LG	75	{
	76	switch (sample_bits) {
	77	case 8:
	78	return SDnFMT_BITS(0);
	79	case 16:
	80	return SDnFMT_BITS(1);
	81	case 20:
	82	return SDnFMT_BITS(2);
	83	case 24:
	84	return SDnFMT_BITS(3);
	85	case 32:
	86	return SDnFMT_BITS(4);
	87	default:
	88	dev_warn(sdev->dev, "can't find %d bits using 16bit\n",
	89	sample_bits);
	90	return SDnFMT_BITS(1); /* use 16bits format if not found */
	91	}
	92	};
	93
	94	int hda_dsp_pcm_hw_params(struct snd_sof_dev *sdev,
	95	struct snd_pcm_substream *substream,
	96	struct snd_pcm_hw_params *params,
31f60a0c	97	struct snd_sof_platform_stream_params *platform_params)
c6be710f LG	98	{
c6be710f LG	99	struct hdac_stream *hstream = substream->runtime->private_data;
7d88b960	100	struct hdac_ext_stream *hext_stream = stream_to_hdac_ext_stream(hstream);
c6be710f LG	101	struct sof_intel_hda_dev *hda = sdev->pdata->hw_pdata;
	102	struct snd_dma_buffer *dmab;
	103	int ret;
c6be710f LG	104
	105	hstream->substream = substream;
	106
	107	dmab = substream->runtime->dma_buffer_p;
	108
1f7b5d52 PU	109	/*
	110	* Use the codec required format val (which is link_bps adjusted) when
	111	* the DSP is not in use
	112	*/
	113	if (!sdev->dspless_mode_selected) {
	114	u32 rate = hda_dsp_get_mult_div(sdev, params_rate(params));
	115	u32 bits = hda_dsp_get_bits(sdev, params_width(params));
	116
	117	hstream->format_val = rate \| bits \| (params_channels(params) - 1);
	118	}
	119
	120	hstream->bufsize = params_buffer_bytes(params);
c6be710f LG	121	hstream->period_bytes = params_period_bytes(params);
	122	hstream->no_period_wakeup =
	123	(params->info & SNDRV_PCM_INFO_NO_PERIOD_WAKEUP) &&
	124	(params->flags & SNDRV_PCM_HW_PARAMS_NO_PERIOD_WAKEUP);
	125
7d88b960	126	ret = hda_dsp_stream_hw_params(sdev, hext_stream, dmab, params);
c6be710f	127	if (ret < 0) {
ce1f55ba	128	dev_err(sdev->dev, "error: hdac prepare failed: %d\n", ret);
c6be710f LG	129	return ret;
	130	}
	131
6c26b505 RS	132	/* enable SPIB when rewinds are disabled */
6c26b505 RS	133	if (hda_disable_rewinds)
7d88b960	134	hda_dsp_stream_spib_config(sdev, hext_stream, HDA_DSP_SPIB_ENABLE, 0);
6c26b505	135	else
7d88b960	136	hda_dsp_stream_spib_config(sdev, hext_stream, HDA_DSP_SPIB_DISABLE, 0);
c6be710f	137
31f60a0c PU	138	if (hda)
31f60a0c PU	139	platform_params->no_ipc_position = hda->no_ipc_position;
c6be710f	140
31f60a0c	141	platform_params->stream_tag = hstream->stream_tag;
c6be710f LG	142
	143	return 0;
	144	}
	145
6c26b505 RS	146	/* update SPIB register with appl position */
	147	int hda_dsp_pcm_ack(struct snd_sof_dev sdev, struct snd_pcm_substream substream)
	148	{
	149	struct hdac_stream *hstream = substream->runtime->private_data;
6c26b505 RS	150	struct snd_pcm_runtime *runtime = substream->runtime;
	151	ssize_t appl_pos, buf_size;
	152	u32 spib;
	153
	154	appl_pos = frames_to_bytes(runtime, runtime->control->appl_ptr);
	155	buf_size = frames_to_bytes(runtime, runtime->buffer_size);
	156
	157	spib = appl_pos % buf_size;
	158
	159	/* Allowable value for SPIB is 1 byte to max buffer size */
	160	if (!spib)
	161	spib = buf_size;
	162
62582341	163	sof_io_write(sdev, hstream->spib_addr, spib);
6c26b505 RS	164
	165	return 0;
	166	}
	167
c6be710f LG	168	int hda_dsp_pcm_trigger(struct snd_sof_dev *sdev,
	169	struct snd_pcm_substream *substream, int cmd)
	170	{
	171	struct hdac_stream *hstream = substream->runtime->private_data;
7d88b960	172	struct hdac_ext_stream *hext_stream = stream_to_hdac_ext_stream(hstream);
c6be710f	173
7d88b960	174	return hda_dsp_stream_trigger(sdev, hext_stream, cmd);
c6be710f LG	175	}
	176
	177	snd_pcm_uframes_t hda_dsp_pcm_pointer(struct snd_sof_dev *sdev,
	178	struct snd_pcm_substream *substream)
	179	{
1205300a	180	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
ee1e79b7	181	struct snd_soc_component *scomp = sdev->component;
c6be710f LG	182	struct hdac_stream *hstream = substream->runtime->private_data;
	183	struct sof_intel_hda_dev *hda = sdev->pdata->hw_pdata;
	184	struct snd_sof_pcm *spcm;
	185	snd_pcm_uframes_t pos;
	186
ee1e79b7	187	spcm = snd_sof_find_spcm_dai(scomp, rtd);
c6be710f LG	188	if (!spcm) {
	189	dev_warn_ratelimited(sdev->dev, "warn: can't find PCM with DAI ID %d\n",
	190	rtd->dai_link->id);
	191	return 0;
	192	}
	193
	194	if (hda && !hda->no_ipc_position) {
	195	/* read position from IPC position */
	196	pos = spcm->stream[substream->stream].posn.host_posn;
	197	goto found;
	198	}
	199
ca7ab1dc	200	pos = hda_dsp_stream_get_position(hstream, substream->stream, true);
c6be710f LG	201	found:
	202	pos = bytes_to_frames(substream->runtime, pos);
	203
d272b657	204	trace_sof_intel_hda_dsp_pcm(sdev, hstream, substream, pos);
c6be710f LG	205	return pos;
	206	}
	207
	208	int hda_dsp_pcm_open(struct snd_sof_dev *sdev,
	209	struct snd_pcm_substream *substream)
	210	{
89a400bd	211	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
246dd428	212	struct snd_pcm_runtime *runtime = substream->runtime;
89a400bd	213	struct snd_soc_component *scomp = sdev->component;
c6be710f	214	struct hdac_ext_stream *dsp_stream;
89a400bd	215	struct snd_sof_pcm *spcm;
c6be710f	216	int direction = substream->stream;
89a400bd RS	217	u32 flags = 0;
	218
	219	spcm = snd_sof_find_spcm_dai(scomp, rtd);
	220	if (!spcm) {
	221	dev_err(sdev->dev, "error: can't find PCM with DAI ID %d\n", rtd->dai_link->id);
	222	return -EINVAL;
	223	}
c6be710f	224
6c26b505 RS	225	/*
	226	* if we want the .ack to work, we need to prevent the control from being mapped.
	227	* The status can still be mapped.
	228	*/
	229	if (hda_disable_rewinds)
	230	runtime->hw.info \|= SNDRV_PCM_INFO_NO_REWINDS \| SNDRV_PCM_INFO_SYNC_APPLPTR;
	231
246dd428 PLB	232	/*
	233	* All playback streams are DMI L1 capable, capture streams need
	234	* pause push/release to be disabled
	235	*/
	236	if (hda_always_enable_dmi_l1 && direction == SNDRV_PCM_STREAM_CAPTURE)
	237	runtime->hw.info &= ~SNDRV_PCM_INFO_PAUSE;
	238
	239	if (hda_always_enable_dmi_l1 \|\|
a174e72e	240	direction == SNDRV_PCM_STREAM_PLAYBACK \|\|
89a400bd RS	241	spcm->stream[substream->stream].d0i3_compatible)
89a400bd RS	242	flags \|= SOF_HDA_STREAM_DMI_L1_COMPATIBLE;
c6be710f	243
89a400bd	244	dsp_stream = hda_dsp_stream_get(sdev, direction, flags);
c6be710f LG	245	if (!dsp_stream) {
	246	dev_err(sdev->dev, "error: no stream available\n");
	247	return -ENODEV;
	248	}
	249
caebea04 KV	250	/* minimum as per HDA spec */
	251	snd_pcm_hw_constraint_step(substream->runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 4);
	252
	253	/* avoid circular buffer wrap in middle of period */
	254	snd_pcm_hw_constraint_integer(substream->runtime,
	255	SNDRV_PCM_HW_PARAM_PERIODS);
	256
1f7b5d52 PU	257	/* Only S16 and S32 supported by HDA hardware when used without DSP */
	258	if (sdev->dspless_mode_selected)
	259	snd_pcm_hw_constraint_mask64(substream->runtime, SNDRV_PCM_HW_PARAM_FORMAT,
	260	SNDRV_PCM_FMTBIT_S16 \| SNDRV_PCM_FMTBIT_S32);
	261
c6be710f LG	262	/* binding pcm substream to hda stream */
	263	substream->runtime->private_data = &dsp_stream->hstream;
	264	return 0;
	265	}
	266
	267	int hda_dsp_pcm_close(struct snd_sof_dev *sdev,
	268	struct snd_pcm_substream *substream)
	269	{
	270	struct hdac_stream *hstream = substream->runtime->private_data;
	271	int direction = substream->stream;
	272	int ret;
	273
	274	ret = hda_dsp_stream_put(sdev, direction, hstream->stream_tag);
	275
	276	if (ret) {
	277	dev_dbg(sdev->dev, "stream %s not opened!\n", substream->name);
	278	return -ENODEV;
	279	}
	280
	281	/* unbinding pcm substream to hda stream */
	282	substream->runtime->private_data = NULL;
	283	return 0;
	284	}