1 // SPDX-License-Identifier: GPL-2.0-only
2 //
3 // Copyright(c) 2021-2022 Intel Corporation. All rights reserved.
4 //
5 // Author: Cezary Rojewski <cezary.rojewski@intel.com>
6 //
7
8 #include <linux/module.h>
9 #include <linux/platform_data/x86/soc.h>
10 #include <linux/platform_device.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 <sound/soc-dapm.h>
17 #include <uapi/linux/input-event-codes.h>
18 #include "../../../codecs/da7219.h"
19
20 #define DA7219_DAI_NAME "da7219-hifi"
21
22 static const struct snd_kcontrol_new card_controls[] = {
23 SOC_DAPM_PIN_SWITCH("Headphone Jack"),
24 SOC_DAPM_PIN_SWITCH("Headset Mic"),
25 SOC_DAPM_PIN_SWITCH("Line Out"),
26 };
27
platform_clock_control(struct snd_soc_dapm_widget * w,struct snd_kcontrol * k,int event)28 static int platform_clock_control(struct snd_soc_dapm_widget *w,
29 struct snd_kcontrol *k, int event)
30 {
31 struct snd_soc_dapm_context *dapm = w->dapm;
32 struct snd_soc_card *card = dapm->card;
33 struct snd_soc_dai *codec_dai;
34 int ret = 0;
35
36 codec_dai = snd_soc_card_get_codec_dai(card, DA7219_DAI_NAME);
37 if (!codec_dai) {
38 dev_err(card->dev, "Codec dai not found. Unable to set/unset codec pll\n");
39 return -EIO;
40 }
41
42 if (SND_SOC_DAPM_EVENT_OFF(event)) {
43 ret = snd_soc_dai_set_pll(codec_dai, 0, DA7219_SYSCLK_MCLK, 0, 0);
44 if (ret)
45 dev_err(card->dev, "failed to stop PLL: %d\n", ret);
46 } else if (SND_SOC_DAPM_EVENT_ON(event)) {
47 ret = snd_soc_dai_set_pll(codec_dai, 0, DA7219_SYSCLK_PLL_SRM,
48 0, DA7219_PLL_FREQ_OUT_98304);
49 if (ret)
50 dev_err(card->dev, "failed to start PLL: %d\n", ret);
51 }
52
53 return ret;
54 }
55
56 static const struct snd_soc_dapm_widget card_widgets[] = {
57 SND_SOC_DAPM_HP("Headphone Jack", NULL),
58 SND_SOC_DAPM_MIC("Headset Mic", NULL),
59 SND_SOC_DAPM_LINE("Line Out", NULL),
60 SND_SOC_DAPM_SUPPLY("Platform Clock", SND_SOC_NOPM, 0, 0, platform_clock_control,
61 SND_SOC_DAPM_POST_PMD | SND_SOC_DAPM_PRE_PMU),
62 };
63
64 static const struct snd_soc_dapm_route card_base_routes[] = {
65 /* HP jack connectors - unknown if we have jack detection */
66 {"Headphone Jack", NULL, "HPL"},
67 {"Headphone Jack", NULL, "HPR"},
68
69 {"MIC", NULL, "Headset Mic"},
70
71 { "Headphone Jack", NULL, "Platform Clock" },
72 { "Headset Mic", NULL, "Platform Clock" },
73 { "Line Out", NULL, "Platform Clock" },
74 };
75
76 static const struct snd_soc_jack_pin card_headset_pins[] = {
77 {
78 .pin = "Headphone Jack",
79 .mask = SND_JACK_HEADPHONE,
80 },
81 {
82 .pin = "Headset Mic",
83 .mask = SND_JACK_MICROPHONE,
84 },
85 {
86 .pin = "Line Out",
87 .mask = SND_JACK_LINEOUT,
88 },
89 };
90
avs_da7219_codec_init(struct snd_soc_pcm_runtime * runtime)91 static int avs_da7219_codec_init(struct snd_soc_pcm_runtime *runtime)
92 {
93 struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(runtime, 0);
94 struct snd_soc_component *component = codec_dai->component;
95 struct snd_soc_card *card = runtime->card;
96 struct snd_soc_jack_pin *pins;
97 struct snd_soc_jack *jack;
98 int num_pins;
99 int clk_freq;
100 int ret;
101
102 jack = snd_soc_card_get_drvdata(card);
103 if (soc_intel_is_apl())
104 clk_freq = 19200000;
105 else /* kbl */
106 clk_freq = 24576000;
107
108 ret = snd_soc_dai_set_sysclk(codec_dai, DA7219_CLKSRC_MCLK, clk_freq, SND_SOC_CLOCK_IN);
109 if (ret) {
110 dev_err(card->dev, "can't set codec sysclk configuration\n");
111 return ret;
112 }
113
114 num_pins = ARRAY_SIZE(card_headset_pins);
115 pins = devm_kmemdup(card->dev, card_headset_pins, sizeof(*pins) * num_pins, GFP_KERNEL);
116 if (!pins)
117 return -ENOMEM;
118
119 /*
120 * Headset buttons map to the google Reference headset.
121 * These can be configured by userspace.
122 */
123 ret = snd_soc_card_jack_new_pins(card, "Headset Jack",
124 SND_JACK_HEADSET | SND_JACK_BTN_0 |
125 SND_JACK_BTN_1 | SND_JACK_BTN_2 |
126 SND_JACK_BTN_3 | SND_JACK_LINEOUT,
127 jack, pins, num_pins);
128 if (ret) {
129 dev_err(card->dev, "Headset Jack creation failed: %d\n", ret);
130 return ret;
131 }
132
133 snd_jack_set_key(jack->jack, SND_JACK_BTN_0, KEY_PLAYPAUSE);
134 snd_jack_set_key(jack->jack, SND_JACK_BTN_1, KEY_VOLUMEUP);
135 snd_jack_set_key(jack->jack, SND_JACK_BTN_2, KEY_VOLUMEDOWN);
136 snd_jack_set_key(jack->jack, SND_JACK_BTN_3, KEY_VOICECOMMAND);
137
138 return snd_soc_component_set_jack(component, jack, NULL);
139 }
140
avs_da7219_codec_exit(struct snd_soc_pcm_runtime * rtd)141 static void avs_da7219_codec_exit(struct snd_soc_pcm_runtime *rtd)
142 {
143 snd_soc_component_set_jack(asoc_rtd_to_codec(rtd, 0)->component, NULL, NULL);
144 }
145
146 static int
avs_da7219_be_fixup(struct snd_soc_pcm_runtime * runrime,struct snd_pcm_hw_params * params)147 avs_da7219_be_fixup(struct snd_soc_pcm_runtime *runrime, struct snd_pcm_hw_params *params)
148 {
149 struct snd_interval *rate, *channels;
150 struct snd_mask *fmt;
151
152 rate = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE);
153 channels = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS);
154 fmt = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT);
155
156 /* The ADSP will convert the FE rate to 48k, stereo */
157 rate->min = rate->max = 48000;
158 channels->min = channels->max = 2;
159
160 /* set SSP0 to 24 bit */
161 snd_mask_none(fmt);
162 snd_mask_set_format(fmt, SNDRV_PCM_FORMAT_S24_LE);
163 return 0;
164 }
165
avs_create_dai_link(struct device * dev,const char * platform_name,int ssp_port,struct snd_soc_dai_link ** dai_link)166 static int avs_create_dai_link(struct device *dev, const char *platform_name, int ssp_port,
167 struct snd_soc_dai_link **dai_link)
168 {
169 struct snd_soc_dai_link_component *platform;
170 struct snd_soc_dai_link *dl;
171
172 dl = devm_kzalloc(dev, sizeof(*dl), GFP_KERNEL);
173 platform = devm_kzalloc(dev, sizeof(*platform), GFP_KERNEL);
174 if (!dl || !platform)
175 return -ENOMEM;
176
177 platform->name = platform_name;
178
179 dl->name = devm_kasprintf(dev, GFP_KERNEL, "SSP%d-Codec", ssp_port);
180 dl->cpus = devm_kzalloc(dev, sizeof(*dl->cpus), GFP_KERNEL);
181 dl->codecs = devm_kzalloc(dev, sizeof(*dl->codecs), GFP_KERNEL);
182 if (!dl->name || !dl->cpus || !dl->codecs)
183 return -ENOMEM;
184
185 dl->cpus->dai_name = devm_kasprintf(dev, GFP_KERNEL, "SSP%d Pin", ssp_port);
186 dl->codecs->name = devm_kasprintf(dev, GFP_KERNEL, "i2c-DLGS7219:00");
187 dl->codecs->dai_name = devm_kasprintf(dev, GFP_KERNEL, DA7219_DAI_NAME);
188 if (!dl->cpus->dai_name || !dl->codecs->name || !dl->codecs->dai_name)
189 return -ENOMEM;
190
191 dl->num_cpus = 1;
192 dl->num_codecs = 1;
193 dl->platforms = platform;
194 dl->num_platforms = 1;
195 dl->id = 0;
196 dl->dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBS_CFS;
197 dl->be_hw_params_fixup = avs_da7219_be_fixup;
198 dl->init = avs_da7219_codec_init;
199 dl->exit = avs_da7219_codec_exit;
200 dl->nonatomic = 1;
201 dl->no_pcm = 1;
202 dl->dpcm_capture = 1;
203 dl->dpcm_playback = 1;
204
205 *dai_link = dl;
206
207 return 0;
208 }
209
avs_card_suspend_pre(struct snd_soc_card * card)210 static int avs_card_suspend_pre(struct snd_soc_card *card)
211 {
212 struct snd_soc_dai *codec_dai = snd_soc_card_get_codec_dai(card, DA7219_DAI_NAME);
213
214 return snd_soc_component_set_jack(codec_dai->component, NULL, NULL);
215 }
216
avs_card_resume_post(struct snd_soc_card * card)217 static int avs_card_resume_post(struct snd_soc_card *card)
218 {
219 struct snd_soc_dai *codec_dai = snd_soc_card_get_codec_dai(card, DA7219_DAI_NAME);
220 struct snd_soc_jack *jack = snd_soc_card_get_drvdata(card);
221
222 return snd_soc_component_set_jack(codec_dai->component, jack, NULL);
223 }
224
avs_da7219_probe(struct platform_device * pdev)225 static int avs_da7219_probe(struct platform_device *pdev)
226 {
227 struct snd_soc_dai_link *dai_link;
228 struct snd_soc_acpi_mach *mach;
229 struct snd_soc_card *card;
230 struct snd_soc_jack *jack;
231 struct device *dev = &pdev->dev;
232 const char *pname;
233 int ssp_port, ret;
234
235 mach = dev_get_platdata(dev);
236 pname = mach->mach_params.platform;
237 ssp_port = __ffs(mach->mach_params.i2s_link_mask);
238
239 ret = avs_create_dai_link(dev, pname, ssp_port, &dai_link);
240 if (ret) {
241 dev_err(dev, "Failed to create dai link: %d", ret);
242 return ret;
243 }
244
245 jack = devm_kzalloc(dev, sizeof(*jack), GFP_KERNEL);
246 card = devm_kzalloc(dev, sizeof(*card), GFP_KERNEL);
247 if (!jack || !card)
248 return -ENOMEM;
249
250 card->name = "avs_da7219";
251 card->dev = dev;
252 card->owner = THIS_MODULE;
253 card->suspend_pre = avs_card_suspend_pre;
254 card->resume_post = avs_card_resume_post;
255 card->dai_link = dai_link;
256 card->num_links = 1;
257 card->controls = card_controls;
258 card->num_controls = ARRAY_SIZE(card_controls);
259 card->dapm_widgets = card_widgets;
260 card->num_dapm_widgets = ARRAY_SIZE(card_widgets);
261 card->dapm_routes = card_base_routes;
262 card->num_dapm_routes = ARRAY_SIZE(card_base_routes);
263 card->fully_routed = true;
264 snd_soc_card_set_drvdata(card, jack);
265
266 ret = snd_soc_fixup_dai_links_platform_name(card, pname);
267 if (ret)
268 return ret;
269
270 return devm_snd_soc_register_card(dev, card);
271 }
272
273 static struct platform_driver avs_da7219_driver = {
274 .probe = avs_da7219_probe,
275 .driver = {
276 .name = "avs_da7219",
277 .pm = &snd_soc_pm_ops,
278 },
279 };
280
281 module_platform_driver(avs_da7219_driver);
282
283 MODULE_AUTHOR("Cezary Rojewski <cezary.rojewski@intel.com>");
284 MODULE_LICENSE("GPL");
285 MODULE_ALIAS("platform:avs_da7219");
286