1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * Sound card driver for Intel Broadwell Wildcat Point with Realtek 286
4 *
5 * Copyright (C) 2013, Intel Corporation
6 */
7
8#include <linux/module.h>
9#include <linux/platform_device.h>
10#include <sound/core.h>
11#include <sound/jack.h>
12#include <sound/pcm.h>
13#include <sound/pcm_params.h>
14#include <sound/soc.h>
15#include <sound/soc-acpi.h>
16#include "../../codecs/rt286.h"
17
18static struct snd_soc_jack card_headset;
19
20static struct snd_soc_jack_pin card_headset_pins[] = {
21 {
22 .pin = "Mic Jack",
23 .mask = SND_JACK_MICROPHONE,
24 },
25 {
26 .pin = "Headphone Jack",
27 .mask = SND_JACK_HEADPHONE,
28 },
29};
30
31static const struct snd_kcontrol_new card_controls[] = {
32 SOC_DAPM_PIN_SWITCH("Speaker"),
33 SOC_DAPM_PIN_SWITCH("Headphone Jack"),
34};
35
36static const struct snd_soc_dapm_widget card_widgets[] = {
37 SND_SOC_DAPM_HP("Headphone Jack", NULL),
38 SND_SOC_DAPM_SPK("Speaker", NULL),
39 SND_SOC_DAPM_MIC("Mic Jack", NULL),
40 SND_SOC_DAPM_MIC("DMIC1", NULL),
41 SND_SOC_DAPM_MIC("DMIC2", NULL),
42 SND_SOC_DAPM_LINE("Line Jack", NULL),
43};
44
45static const struct snd_soc_dapm_route card_routes[] = {
46 {"Speaker", NULL, "SPOR"},
47 {"Speaker", NULL, "SPOL"},
48
49 {"Headphone Jack", NULL, "HPO Pin"},
50
51 {"MIC1", NULL, "Mic Jack"},
52 {"LINE1", NULL, "Line Jack"},
53
54 {"DMIC1 Pin", NULL, "DMIC1"},
55 {"DMIC2 Pin", NULL, "DMIC2"},
56
57 /* CODEC BE connections */
58 {"SSP0 CODEC IN", NULL, "AIF1 Capture"},
59 {"AIF1 Playback", NULL, "SSP0 CODEC OUT"},
60};
61
62static int codec_link_init(struct snd_soc_pcm_runtime *rtd)
63{
64 struct snd_soc_component *codec = snd_soc_rtd_to_codec(rtd, 0)->component;
65 int ret;
66
67 ret = snd_soc_card_jack_new_pins(card: rtd->card, id: "Headset", type: SND_JACK_HEADSET | SND_JACK_BTN_0,
68 jack: &card_headset, pins: card_headset_pins,
69 ARRAY_SIZE(card_headset_pins));
70 if (ret)
71 return ret;
72
73 return snd_soc_component_set_jack(component: codec, jack: &card_headset, NULL);
74}
75
76static void codec_link_exit(struct snd_soc_pcm_runtime *rtd)
77{
78 struct snd_soc_component *codec = snd_soc_rtd_to_codec(rtd, 0)->component;
79
80 snd_soc_component_set_jack(component: codec, NULL, NULL);
81}
82
83static int codec_link_hw_params_fixup(struct snd_soc_pcm_runtime *rtd,
84 struct snd_pcm_hw_params *params)
85{
86 struct snd_interval *channels = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS);
87 struct snd_interval *rate = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE);
88
89 /* The ADSP will convert the FE rate to 48kHz, stereo. */
90 rate->min = rate->max = 48000;
91 channels->min = channels->max = 2;
92 /* Set SSP0 to 16 bit. */
93 params_set_format(p: params, SNDRV_PCM_FORMAT_S16_LE);
94
95 return 0;
96}
97
98static int codec_link_hw_params(struct snd_pcm_substream *substream,
99 struct snd_pcm_hw_params *params)
100{
101 struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
102 struct snd_soc_dai *codec_dai = snd_soc_rtd_to_codec(rtd, 0);
103 int ret;
104
105 ret = snd_soc_dai_set_sysclk(dai: codec_dai, RT286_SCLK_S_PLL, freq: 24000000, SND_SOC_CLOCK_IN);
106 if (ret < 0) {
107 dev_err(rtd->dev, "set codec sysclk failed: %d\n", ret);
108 return ret;
109 }
110
111 return ret;
112}
113
114static const struct snd_soc_ops codec_link_ops = {
115 .hw_params = codec_link_hw_params,
116};
117
118SND_SOC_DAILINK_DEF(system, DAILINK_COMP_ARRAY(COMP_CPU("System Pin")));
119SND_SOC_DAILINK_DEF(offload0, DAILINK_COMP_ARRAY(COMP_CPU("Offload0 Pin")));
120SND_SOC_DAILINK_DEF(offload1, DAILINK_COMP_ARRAY(COMP_CPU("Offload1 Pin")));
121SND_SOC_DAILINK_DEF(loopback, DAILINK_COMP_ARRAY(COMP_CPU("Loopback Pin")));
122
123SND_SOC_DAILINK_DEF(dummy, DAILINK_COMP_ARRAY(COMP_DUMMY()));
124SND_SOC_DAILINK_DEF(platform, DAILINK_COMP_ARRAY(COMP_PLATFORM("haswell-pcm-audio")));
125SND_SOC_DAILINK_DEF(codec, DAILINK_COMP_ARRAY(COMP_CODEC("i2c-INT343A:00", "rt286-aif1")));
126SND_SOC_DAILINK_DEF(ssp0_port, DAILINK_COMP_ARRAY(COMP_CPU("ssp0-port")));
127
128static struct snd_soc_dai_link card_dai_links[] = {
129 /* Front End DAI links */
130 {
131 .name = "System PCM",
132 .stream_name = "System Playback/Capture",
133 .nonatomic = 1,
134 .dynamic = 1,
135 .trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
136 SND_SOC_DAILINK_REG(system, dummy, platform),
137 },
138 {
139 .name = "Offload0",
140 .stream_name = "Offload0 Playback",
141 .nonatomic = 1,
142 .dynamic = 1,
143 .trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
144 .playback_only = 1,
145 SND_SOC_DAILINK_REG(offload0, dummy, platform),
146 },
147 {
148 .name = "Offload1",
149 .stream_name = "Offload1 Playback",
150 .nonatomic = 1,
151 .dynamic = 1,
152 .trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
153 .playback_only = 1,
154 SND_SOC_DAILINK_REG(offload1, dummy, platform),
155 },
156 {
157 .name = "Loopback PCM",
158 .stream_name = "Loopback",
159 .nonatomic = 1,
160 .dynamic = 1,
161 .trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
162 .capture_only = 1,
163 SND_SOC_DAILINK_REG(loopback, dummy, platform),
164 },
165 /* Back End DAI links */
166 {
167 /* SSP0 - Codec */
168 .name = "Codec",
169 .id = 0,
170 .nonatomic = 1,
171 .no_pcm = 1,
172 .init = codec_link_init,
173 .exit = codec_link_exit,
174 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBC_CFC,
175 .ignore_pmdown_time = 1,
176 .be_hw_params_fixup = codec_link_hw_params_fixup,
177 .ops = &codec_link_ops,
178 SND_SOC_DAILINK_REG(ssp0_port, codec, platform),
179 },
180};
181
182static int card_suspend_pre(struct snd_soc_card *card)
183{
184 struct snd_soc_dai *codec_dai = snd_soc_card_get_codec_dai(card, dai_name: "rt286-aif1");
185
186 if (!codec_dai)
187 return 0;
188
189 return snd_soc_component_set_jack(component: codec_dai->component, NULL, NULL);
190}
191
192static int card_resume_post(struct snd_soc_card *card)
193{
194 struct snd_soc_dai *codec_dai = snd_soc_card_get_codec_dai(card, dai_name: "rt286-aif1");
195
196 if (!codec_dai)
197 return 0;
198
199 return snd_soc_component_set_jack(component: codec_dai->component, jack: &card_headset, NULL);
200}
201
202static struct snd_soc_card bdw_rt286_card = {
203 .owner = THIS_MODULE,
204 .suspend_pre = card_suspend_pre,
205 .resume_post = card_resume_post,
206 .dai_link = card_dai_links,
207 .num_links = ARRAY_SIZE(card_dai_links),
208 .controls = card_controls,
209 .num_controls = ARRAY_SIZE(card_controls),
210 .dapm_widgets = card_widgets,
211 .num_dapm_widgets = ARRAY_SIZE(card_widgets),
212 .dapm_routes = card_routes,
213 .num_dapm_routes = ARRAY_SIZE(card_routes),
214 .fully_routed = true,
215};
216
217/* Use space before codec name to simplify card ID, and simplify driver name. */
218#define SOF_CARD_NAME "bdw rt286" /* card name will be 'sof-bdw rt286' */
219#define SOF_DRIVER_NAME "SOF"
220
221#define CARD_NAME "broadwell-rt286"
222
223static int bdw_rt286_probe(struct platform_device *pdev)
224{
225 struct snd_soc_acpi_mach *mach;
226 struct device *dev = &pdev->dev;
227 int ret;
228
229 bdw_rt286_card.dev = dev;
230 mach = dev_get_platdata(dev);
231
232 ret = snd_soc_fixup_dai_links_platform_name(card: &bdw_rt286_card, platform_name: mach->mach_params.platform);
233 if (ret)
234 return ret;
235
236 if (snd_soc_acpi_sof_parent(dev)) {
237 bdw_rt286_card.name = SOF_CARD_NAME;
238 bdw_rt286_card.driver_name = SOF_DRIVER_NAME;
239 } else {
240 bdw_rt286_card.name = CARD_NAME;
241 }
242
243 return devm_snd_soc_register_card(dev, card: &bdw_rt286_card);
244}
245
246static struct platform_driver bdw_rt286_driver = {
247 .probe = bdw_rt286_probe,
248 .driver = {
249 .name = "bdw_rt286",
250 .pm = &snd_soc_pm_ops
251 },
252};
253
254module_platform_driver(bdw_rt286_driver)
255
256MODULE_AUTHOR("Liam Girdwood, Xingchao Wang");
257MODULE_DESCRIPTION("Sound card driver for Intel Broadwell Wildcat Point with Realtek 286");
258MODULE_LICENSE("GPL");
259MODULE_ALIAS("platform:bdw_rt286");
260

source code of linux/sound/soc/intel/boards/bdw_rt286.c