skl_hda_dsp_generic.c

  1// SPDX-License-Identifier: GPL-2.0-only
  2// Copyright(c) 2015-18 Intel Corporation.
  3
  4/*
  5 * Machine Driver for SKL+ platforms with DSP and iDisp, HDA Codecs
  6 */
  7
  8#include <linux/module.h>
  9#include <linux/platform_device.h>
 10#include <sound/core.h>
 11#include <sound/hda_codec.h>
 12#include <sound/jack.h>
 13#include <sound/pcm.h>
 14#include <sound/pcm_params.h>
 15#include <sound/soc.h>
 16#include <sound/soc-acpi.h>
 17#include "../../codecs/hdac_hda.h"
 18#include "../../sof/intel/hda.h"
 19#include "sof_board_helpers.h"
 20
 21static int skl_hda_card_late_probe(struct snd_soc_card *card)
 22{
 23	return sof_intel_board_card_late_probe(card);
 24}
 25
 26#define HDA_CODEC_AUTOSUSPEND_DELAY_MS 1000
 27
 28static void skl_set_hda_codec_autosuspend_delay(struct snd_soc_card *card)
 29{
 30	struct snd_soc_pcm_runtime *rtd;
 31	struct hdac_hda_priv *hda_pvt;
 32	struct snd_soc_dai *dai;
 33
 34	for_each_card_rtds(card, rtd) {
 35		if (!strstr(rtd->dai_link->codecs->name, "ehdaudio0D0"))
 36			continue;
 37		dai = snd_soc_rtd_to_codec(rtd, 0);
 38		hda_pvt = snd_soc_component_get_drvdata(dai->component);
 39		if (hda_pvt) {
 40			/*
 41			 * all codecs are on the same bus, so it's sufficient
 42			 * to look up only the first one
 43			 */
 44			snd_hda_set_power_save(hda_pvt->codec->bus,
 45					       HDA_CODEC_AUTOSUSPEND_DELAY_MS);
 46			break;
 47		}
 48	}
 49}
 50
 51#define IDISP_HDMI_BE_ID	1
 52#define HDA_BE_ID		4
 53#define DMIC01_BE_ID		6
 54#define DMIC16K_BE_ID		7
 55#define BT_OFFLOAD_BE_ID	8
 56
 57#define HDA_LINK_ORDER	SOF_LINK_ORDER(SOF_LINK_IDISP_HDMI,  \
 58				       SOF_LINK_HDA,        \
 59				       SOF_LINK_DMIC01,     \
 60				       SOF_LINK_DMIC16K,    \
 61				       SOF_LINK_BT_OFFLOAD, \
 62				       SOF_LINK_NONE,       \
 63				       SOF_LINK_NONE)
 64
 65#define HDA_LINK_IDS	SOF_LINK_ORDER(IDISP_HDMI_BE_ID,  \
 66				       HDA_BE_ID,        \
 67				       DMIC01_BE_ID,     \
 68				       DMIC16K_BE_ID,    \
 69				       BT_OFFLOAD_BE_ID, \
 70				       0,                \
 71				       0)
 72
 73static unsigned long
 74skl_hda_get_board_quirk(struct snd_soc_acpi_mach_params *mach_params)
 75{
 76	unsigned long board_quirk = 0;
 77	int ssp_bt;
 78
 79	if (hweight_long(mach_params->bt_link_mask) == 1) {
 80		ssp_bt = fls(mach_params->bt_link_mask) - 1;
 81		board_quirk |= SOF_SSP_PORT_BT_OFFLOAD(ssp_bt) |
 82				SOF_BT_OFFLOAD_PRESENT;
 83	}
 84
 85	return board_quirk;
 86}
 87
 88static int skl_hda_add_dai_link(struct snd_soc_card *card,
 89				struct snd_soc_dai_link *link)
 90{
 91	struct sof_card_private *ctx = snd_soc_card_get_drvdata(card);
 92
 93	/* Ignore the HDMI PCM link if iDisp is not present */
 94	if (strstr(link->stream_name, "HDMI") && !ctx->hdmi.idisp_codec)
 95		link->ignore = true;
 96
 97	return 0;
 98}
 99
100static int skl_hda_audio_probe(struct platform_device *pdev)
101{
102	struct snd_soc_acpi_mach *mach = pdev->dev.platform_data;
103	struct sof_card_private *ctx;
104	struct snd_soc_card *card;
105	unsigned long board_quirk = skl_hda_get_board_quirk(&mach->mach_params);
106	int ret;
107
108	card = devm_kzalloc(&pdev->dev, sizeof(struct snd_soc_card), GFP_KERNEL);
109	if (!card)
110		return -ENOMEM;
111
112	card->name = "hda-dsp";
113	card->owner = THIS_MODULE;
114	card->fully_routed = true;
115	card->late_probe = skl_hda_card_late_probe;
116	card->add_dai_link = skl_hda_add_dai_link;
117
118	dev_dbg(&pdev->dev, "board_quirk = %lx\n", board_quirk);
119
120	/* initialize ctx with board quirk */
121	ctx = sof_intel_board_get_ctx(&pdev->dev, board_quirk);
122	if (!ctx)
123		return -ENOMEM;
124
125	if (HDA_EXT_CODEC(mach->mach_params.codec_mask))
126		ctx->hda_codec_present = true;
127
128	if (mach->mach_params.codec_mask & IDISP_CODEC_MASK)
129		ctx->hdmi.idisp_codec = true;
130
131	ctx->link_order_overwrite = HDA_LINK_ORDER;
132	ctx->link_id_overwrite = HDA_LINK_IDS;
133
134	/* update dai_link */
135	ret = sof_intel_board_set_dai_link(&pdev->dev, card, ctx);
136	if (ret)
137		return ret;
138
139	card->dev = &pdev->dev;
140
141	if (mach->mach_params.dmic_num > 0) {
142		card->components = devm_kasprintf(card->dev, GFP_KERNEL,
143						  "cfg-dmics:%d",
144						  mach->mach_params.dmic_num);
145		if (!card->components)
146			return -ENOMEM;
147	}
148
149	ret = snd_soc_fixup_dai_links_platform_name(card,
150						    mach->mach_params.platform);
151	if (ret)
152		return ret;
153
154	snd_soc_card_set_drvdata(card, ctx);
155
156	ret = devm_snd_soc_register_card(&pdev->dev, card);
157	if (!ret)
158		skl_set_hda_codec_autosuspend_delay(card);
159
160	return ret;
161}
162
163static struct platform_driver skl_hda_audio = {
164	.probe = skl_hda_audio_probe,
165	.driver = {
166		.name = "skl_hda_dsp_generic",
167		.pm = &snd_soc_pm_ops,
168	},
169};
170
171module_platform_driver(skl_hda_audio)
172
173/* Module information */
174MODULE_DESCRIPTION("SKL/KBL/BXT/APL HDA Generic Machine driver");
175MODULE_AUTHOR("Rakesh Ughreja <rakesh.a.ughreja@intel.com>");
176MODULE_LICENSE("GPL v2");
177MODULE_ALIAS("platform:skl_hda_dsp_generic");
178MODULE_IMPORT_NS("SND_SOC_INTEL_SOF_BOARD_HELPERS");