1 // SPDX-License-Identifier: GPL-2.0-only
2 //
3 // Copyright(c) 2021-2022 Intel Corporation
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 #include "../utils.h"
20
21 #define DA7219_DAI_NAME "da7219-hifi"
22
23 static const struct snd_kcontrol_new card_controls[] = {
24 SOC_DAPM_PIN_SWITCH("Headphone Jack"),
25 SOC_DAPM_PIN_SWITCH("Headset Mic"),
26 SOC_DAPM_PIN_SWITCH("Line Out"),
27 };
28
platform_clock_control(struct snd_soc_dapm_widget * w,struct snd_kcontrol * k,int event)29 static int platform_clock_control(struct snd_soc_dapm_widget *w,
30 struct snd_kcontrol *k, int event)
31 {
32 struct snd_soc_dapm_context *dapm = w->dapm;
33 struct snd_soc_card *card = dapm->card;
34 struct snd_soc_dai *codec_dai;
35 int ret = 0;
36
37 codec_dai = snd_soc_card_get_codec_dai(card, DA7219_DAI_NAME);
38 if (!codec_dai) {
39 dev_err(card->dev, "Codec dai not found. Unable to set/unset codec pll\n");
40 return -EIO;
41 }
42
43 if (SND_SOC_DAPM_EVENT_OFF(event)) {
44 ret = snd_soc_dai_set_pll(codec_dai, 0, DA7219_SYSCLK_MCLK, 0, 0);
45 if (ret)
46 dev_err(card->dev, "failed to stop PLL: %d\n", ret);
47 } else if (SND_SOC_DAPM_EVENT_ON(event)) {
48 ret = snd_soc_dai_set_pll(codec_dai, 0, DA7219_SYSCLK_PLL_SRM,
49 0, DA7219_PLL_FREQ_OUT_98304);
50 if (ret)
51 dev_err(card->dev, "failed to start PLL: %d\n", ret);
52 }
53
54 return ret;
55 }
56
57 static const struct snd_soc_dapm_widget card_widgets[] = {
58 SND_SOC_DAPM_HP("Headphone Jack", NULL),
59 SND_SOC_DAPM_MIC("Headset Mic", NULL),
60 SND_SOC_DAPM_LINE("Line Out", NULL),
61 SND_SOC_DAPM_SUPPLY("Platform Clock", SND_SOC_NOPM, 0, 0, platform_clock_control,
62 SND_SOC_DAPM_POST_PMD | SND_SOC_DAPM_PRE_PMU),
63 };
64
65 static const struct snd_soc_dapm_route card_base_routes[] = {
66 /* HP jack connectors - unknown if we have jack detection */
67 {"Headphone Jack", NULL, "HPL"},
68 {"Headphone Jack", NULL, "HPR"},
69
70 {"MIC", NULL, "Headset Mic"},
71
72 { "Headphone Jack", NULL, "Platform Clock" },
73 { "Headset Mic", NULL, "Platform Clock" },
74 { "Line Out", NULL, "Platform Clock" },
75 };
76
77 static const struct snd_soc_jack_pin card_headset_pins[] = {
78 {
79 .pin = "Headphone Jack",
80 .mask = SND_JACK_HEADPHONE,
81 },
82 {
83 .pin = "Headset Mic",
84 .mask = SND_JACK_MICROPHONE,
85 },
86 {
87 .pin = "Line Out",
88 .mask = SND_JACK_LINEOUT,
89 },
90 };
91
avs_da7219_codec_init(struct snd_soc_pcm_runtime * runtime)92 static int avs_da7219_codec_init(struct snd_soc_pcm_runtime *runtime)
93 {
94 struct snd_soc_dai *codec_dai = snd_soc_rtd_to_codec(runtime, 0);
95 struct snd_soc_component *component = codec_dai->component;
96 struct snd_soc_card *card = runtime->card;
97 struct snd_soc_jack_pin *pins;
98 struct snd_soc_jack *jack;
99 int num_pins;
100 int clk_freq;
101 int ret;
102
103 jack = snd_soc_card_get_drvdata(card);
104 if (soc_intel_is_apl())
105 clk_freq = 19200000;
106 else /* kbl */
107 clk_freq = 24576000;
108
109 ret = snd_soc_dai_set_sysclk(codec_dai, DA7219_CLKSRC_MCLK, clk_freq, SND_SOC_CLOCK_IN);
110 if (ret) {
111 dev_err(card->dev, "can't set codec sysclk configuration\n");
112 return ret;
113 }
114
115 num_pins = ARRAY_SIZE(card_headset_pins);
116 pins = devm_kmemdup_array(card->dev, card_headset_pins, num_pins,
117 sizeof(card_headset_pins[0]), GFP_KERNEL);
118 if (!pins)
119 return -ENOMEM;
120
121 /*
122 * Headset buttons map to the google Reference headset.
123 * These can be configured by userspace.
124 */
125 ret = snd_soc_card_jack_new_pins(card, "Headset Jack",
126 SND_JACK_HEADSET | SND_JACK_BTN_0 |
127 SND_JACK_BTN_1 | SND_JACK_BTN_2 |
128 SND_JACK_BTN_3 | SND_JACK_LINEOUT,
129 jack, pins, num_pins);
130 if (ret) {
131 dev_err(card->dev, "Headset Jack creation failed: %d\n", ret);
132 return ret;
133 }
134
135 snd_jack_set_key(jack->jack, SND_JACK_BTN_0, KEY_PLAYPAUSE);
136 snd_jack_set_key(jack->jack, SND_JACK_BTN_1, KEY_VOLUMEUP);
137 snd_jack_set_key(jack->jack, SND_JACK_BTN_2, KEY_VOLUMEDOWN);
138 snd_jack_set_key(jack->jack, SND_JACK_BTN_3, KEY_VOICECOMMAND);
139
140 return snd_soc_component_set_jack(component, jack, NULL);
141 }
142
avs_da7219_codec_exit(struct snd_soc_pcm_runtime * rtd)143 static void avs_da7219_codec_exit(struct snd_soc_pcm_runtime *rtd)
144 {
145 snd_soc_component_set_jack(snd_soc_rtd_to_codec(rtd, 0)->component, NULL, NULL);
146 }
147
148 static int
avs_da7219_be_fixup(struct snd_soc_pcm_runtime * runrime,struct snd_pcm_hw_params * params)149 avs_da7219_be_fixup(struct snd_soc_pcm_runtime *runrime, struct snd_pcm_hw_params *params)
150 {
151 struct snd_interval *rate, *channels;
152 struct snd_mask *fmt;
153
154 rate = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE);
155 channels = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS);
156 fmt = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT);
157
158 /* The ADSP will convert the FE rate to 48k, stereo */
159 rate->min = rate->max = 48000;
160 channels->min = channels->max = 2;
161
162 /* set SSP0 to 24 bit */
163 snd_mask_none(fmt);
164 snd_mask_set_format(fmt, SNDRV_PCM_FORMAT_S24_LE);
165 return 0;
166 }
167
avs_create_dai_link(struct device * dev,const char * platform_name,int ssp_port,int tdm_slot,struct snd_soc_dai_link ** dai_link)168 static int avs_create_dai_link(struct device *dev, const char *platform_name, int ssp_port,
169 int tdm_slot, struct snd_soc_dai_link **dai_link)
170 {
171 struct snd_soc_dai_link_component *platform;
172 struct snd_soc_dai_link *dl;
173
174 dl = devm_kzalloc(dev, sizeof(*dl), GFP_KERNEL);
175 platform = devm_kzalloc(dev, sizeof(*platform), GFP_KERNEL);
176 if (!dl || !platform)
177 return -ENOMEM;
178
179 platform->name = platform_name;
180
181 dl->name = devm_kasprintf(dev, GFP_KERNEL, "SSP%d-Codec", ssp_port);
182 dl->name = devm_kasprintf(dev, GFP_KERNEL,
183 AVS_STRING_FMT("SSP", "-Codec", ssp_port, tdm_slot));
184 dl->cpus = devm_kzalloc(dev, sizeof(*dl->cpus), GFP_KERNEL);
185 dl->codecs = devm_kzalloc(dev, sizeof(*dl->codecs), GFP_KERNEL);
186 if (!dl->name || !dl->cpus || !dl->codecs)
187 return -ENOMEM;
188
189 dl->cpus->dai_name = devm_kasprintf(dev, GFP_KERNEL,
190 AVS_STRING_FMT("SSP", " Pin", ssp_port, tdm_slot));
191 dl->codecs->name = devm_kasprintf(dev, GFP_KERNEL, "i2c-DLGS7219:00");
192 dl->codecs->dai_name = devm_kasprintf(dev, GFP_KERNEL, DA7219_DAI_NAME);
193 if (!dl->cpus->dai_name || !dl->codecs->name || !dl->codecs->dai_name)
194 return -ENOMEM;
195
196 dl->num_cpus = 1;
197 dl->num_codecs = 1;
198 dl->platforms = platform;
199 dl->num_platforms = 1;
200 dl->id = 0;
201 dl->dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBC_CFC;
202 dl->be_hw_params_fixup = avs_da7219_be_fixup;
203 dl->init = avs_da7219_codec_init;
204 dl->exit = avs_da7219_codec_exit;
205 dl->nonatomic = 1;
206 dl->no_pcm = 1;
207
208 *dai_link = dl;
209
210 return 0;
211 }
212
avs_da7219_probe(struct platform_device * pdev)213 static int avs_da7219_probe(struct platform_device *pdev)
214 {
215 struct snd_soc_dai_link *dai_link;
216 struct snd_soc_acpi_mach *mach;
217 struct avs_mach_pdata *pdata;
218 struct snd_soc_card *card;
219 struct snd_soc_jack *jack;
220 struct device *dev = &pdev->dev;
221 const char *pname;
222 int ssp_port, tdm_slot, ret;
223
224 mach = dev_get_platdata(dev);
225 pname = mach->mach_params.platform;
226 pdata = mach->pdata;
227
228 ret = avs_mach_get_ssp_tdm(dev, mach, &ssp_port, &tdm_slot);
229 if (ret)
230 return ret;
231
232 ret = avs_create_dai_link(dev, pname, ssp_port, tdm_slot, &dai_link);
233 if (ret) {
234 dev_err(dev, "Failed to create dai link: %d", ret);
235 return ret;
236 }
237
238 jack = devm_kzalloc(dev, sizeof(*jack), GFP_KERNEL);
239 card = devm_kzalloc(dev, sizeof(*card), GFP_KERNEL);
240 if (!jack || !card)
241 return -ENOMEM;
242
243 if (pdata->obsolete_card_names) {
244 card->name = "avs_da7219";
245 } else {
246 card->driver_name = "avs_da7219";
247 card->long_name = card->name = "AVS I2S DA7219";
248 }
249 card->dev = dev;
250 card->owner = THIS_MODULE;
251 card->dai_link = dai_link;
252 card->num_links = 1;
253 card->controls = card_controls;
254 card->num_controls = ARRAY_SIZE(card_controls);
255 card->dapm_widgets = card_widgets;
256 card->num_dapm_widgets = ARRAY_SIZE(card_widgets);
257 card->dapm_routes = card_base_routes;
258 card->num_dapm_routes = ARRAY_SIZE(card_base_routes);
259 card->fully_routed = true;
260 snd_soc_card_set_drvdata(card, jack);
261
262 ret = snd_soc_fixup_dai_links_platform_name(card, pname);
263 if (ret)
264 return ret;
265
266 return devm_snd_soc_register_deferrable_card(dev, card);
267 }
268
269 static const struct platform_device_id avs_da7219_driver_ids[] = {
270 {
271 .name = "avs_da7219",
272 },
273 {},
274 };
275 MODULE_DEVICE_TABLE(platform, avs_da7219_driver_ids);
276
277 static struct platform_driver avs_da7219_driver = {
278 .probe = avs_da7219_probe,
279 .driver = {
280 .name = "avs_da7219",
281 .pm = &snd_soc_pm_ops,
282 },
283 .id_table = avs_da7219_driver_ids,
284 };
285
286 module_platform_driver(avs_da7219_driver);
287
288 MODULE_DESCRIPTION("Intel da7219 machine driver");
289 MODULE_AUTHOR("Cezary Rojewski <cezary.rojewski@intel.com>");
290 MODULE_LICENSE("GPL");
291