1 // SPDX-License-Identifier: GPL-2.0-only
2 //
3 // Copyright(c) 2021-2022 Intel Corporation
4 //
5 // Authors: Cezary Rojewski <cezary.rojewski@intel.com>
6 // Amadeusz Slawinski <amadeuszx.slawinski@linux.intel.com>
7 //
8
9 #include <linux/dmi.h>
10 #include <linux/module.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/rt298.h"
17 #include "../utils.h"
18
19 #define RT298_CODEC_DAI "rt298-aif1"
20
21 static const struct dmi_system_id kblr_dmi_table[] = {
22 {
23 .matches = {
24 DMI_MATCH(DMI_SYS_VENDOR, "Intel Corporation"),
25 DMI_MATCH(DMI_BOARD_NAME, "Kabylake R DDR4 RVP"),
26 },
27 },
28 {}
29 };
30
31 static const struct snd_kcontrol_new card_controls[] = {
32 SOC_DAPM_PIN_SWITCH("Headphone Jack"),
33 SOC_DAPM_PIN_SWITCH("Mic Jack"),
34 SOC_DAPM_PIN_SWITCH("Speaker"),
35 };
36
37 static const struct snd_soc_dapm_widget card_widgets[] = {
38 SND_SOC_DAPM_HP("Headphone Jack", NULL),
39 SND_SOC_DAPM_MIC("Mic Jack", NULL),
40 SND_SOC_DAPM_SPK("Speaker", NULL),
41 };
42
43 static const struct snd_soc_dapm_route card_base_routes[] = {
44 /* HP jack connectors - unknown if we have jack detect */
45 {"Headphone Jack", NULL, "HPO Pin"},
46 {"MIC1", NULL, "Mic Jack"},
47
48 {"Speaker", NULL, "SPOR"},
49 {"Speaker", NULL, "SPOL"},
50 };
51
52 static const struct snd_soc_jack_pin card_headset_pins[] = {
53 {
54 .pin = "Headphone Jack",
55 .mask = SND_JACK_HEADPHONE,
56 },
57 {
58 .pin = "Mic Jack",
59 .mask = SND_JACK_MICROPHONE,
60 },
61 };
62
63 static int avs_rt298_codec_init(struct snd_soc_pcm_runtime *runtime)
64 {
65 struct snd_soc_card *card = runtime->card;
66 struct snd_soc_jack_pin *pins;
67 struct snd_soc_jack *jack;
68 int num_pins, ret;
69
70 jack = snd_soc_card_get_drvdata(card);
71 num_pins = ARRAY_SIZE(card_headset_pins);
72
73 pins = devm_kmemdup(card->dev, card_headset_pins, sizeof(*pins) * num_pins, GFP_KERNEL);
74 if (!pins)
75 return -ENOMEM;
76
77 ret = snd_soc_card_jack_new_pins(card, "Headset Jack", SND_JACK_HEADSET | SND_JACK_BTN_0,
78 jack, pins, num_pins);
79 if (ret)
80 return ret;
81
82 return snd_soc_component_set_jack(snd_soc_rtd_to_codec(runtime, 0)->component, jack, NULL);
83 }
84
85 static void avs_rt298_codec_exit(struct snd_soc_pcm_runtime *rtd)
86 {
87 snd_soc_component_set_jack(snd_soc_rtd_to_codec(rtd, 0)->component, NULL, NULL);
88 }
89
90 static int avs_rt298_be_fixup(struct snd_soc_pcm_runtime *runtime, struct snd_pcm_hw_params *params)
91 {
92 struct snd_interval *rate, *channels;
93 struct snd_mask *fmt;
94
95 rate = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE);
96 channels = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS);
97 fmt = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT);
98
99 /* The ADSP will convert the FE rate to 48k, stereo */
100 rate->min = rate->max = 48000;
101 channels->min = channels->max = 2;
102
103 /* set SSP0 to 24 bit */
104 snd_mask_none(fmt);
105 snd_mask_set_format(fmt, SNDRV_PCM_FORMAT_S24_LE);
106
107 return 0;
108 }
109
110 static int
111 avs_rt298_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params)
112 {
113 struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
114 struct snd_soc_dai *codec_dai = snd_soc_rtd_to_codec(rtd, 0);
115 unsigned int clk_freq;
116 int ret;
117
118 if (dmi_first_match(kblr_dmi_table))
119 clk_freq = 24000000;
120 else
121 clk_freq = 19200000;
122
123 ret = snd_soc_dai_set_sysclk(codec_dai, RT298_SCLK_S_PLL, clk_freq, SND_SOC_CLOCK_IN);
124 if (ret < 0)
125 dev_err(rtd->dev, "Set codec sysclk failed: %d\n", ret);
126
127 return ret;
128 }
129
130 static const struct snd_soc_ops avs_rt298_ops = {
131 .hw_params = avs_rt298_hw_params,
132 };
133
134 static int avs_create_dai_link(struct device *dev, const char *platform_name, int ssp_port,
135 int tdm_slot, struct snd_soc_dai_link **dai_link)
136 {
137 struct snd_soc_dai_link_component *platform;
138 struct snd_soc_dai_link *dl;
139
140 dl = devm_kzalloc(dev, sizeof(*dl), GFP_KERNEL);
141 platform = devm_kzalloc(dev, sizeof(*platform), GFP_KERNEL);
142 if (!dl || !platform)
143 return -ENOMEM;
144
145 platform->name = platform_name;
146
147 dl->name = devm_kasprintf(dev, GFP_KERNEL,
148 AVS_STRING_FMT("SSP", "-Codec", ssp_port, tdm_slot));
149 dl->cpus = devm_kzalloc(dev, sizeof(*dl->cpus), GFP_KERNEL);
150 dl->codecs = devm_kzalloc(dev, sizeof(*dl->codecs), GFP_KERNEL);
151 if (!dl->name || !dl->cpus || !dl->codecs)
152 return -ENOMEM;
153
154 dl->cpus->dai_name = devm_kasprintf(dev, GFP_KERNEL,
155 AVS_STRING_FMT("SSP", " Pin", ssp_port, tdm_slot));
156 dl->codecs->name = devm_kasprintf(dev, GFP_KERNEL, "i2c-INT343A:00");
157 dl->codecs->dai_name = devm_kasprintf(dev, GFP_KERNEL, RT298_CODEC_DAI);
158 if (!dl->cpus->dai_name || !dl->codecs->name || !dl->codecs->dai_name)
159 return -ENOMEM;
160
161 dl->num_cpus = 1;
162 dl->num_codecs = 1;
163 dl->platforms = platform;
164 dl->num_platforms = 1;
165 dl->id = 0;
166 if (dmi_first_match(kblr_dmi_table))
167 dl->dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBS_CFS;
168 else
169 dl->dai_fmt = SND_SOC_DAIFMT_DSP_A | SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBS_CFS;
170 dl->init = avs_rt298_codec_init;
171 dl->exit = avs_rt298_codec_exit;
172 dl->be_hw_params_fixup = avs_rt298_be_fixup;
173 dl->ops = &avs_rt298_ops;
174 dl->nonatomic = 1;
175 dl->no_pcm = 1;
176 dl->dpcm_capture = 1;
177 dl->dpcm_playback = 1;
178
179 *dai_link = dl;
180
181 return 0;
182 }
183
184 static int avs_card_suspend_pre(struct snd_soc_card *card)
185 {
186 struct snd_soc_dai *codec_dai = snd_soc_card_get_codec_dai(card, RT298_CODEC_DAI);
187
188 return snd_soc_component_set_jack(codec_dai->component, NULL, NULL);
189 }
190
191 static int avs_card_resume_post(struct snd_soc_card *card)
192 {
193 struct snd_soc_dai *codec_dai = snd_soc_card_get_codec_dai(card, RT298_CODEC_DAI);
194 struct snd_soc_jack *jack = snd_soc_card_get_drvdata(card);
195
196 return snd_soc_component_set_jack(codec_dai->component, jack, NULL);
197 }
198
199 static int avs_rt298_probe(struct platform_device *pdev)
200 {
201 struct snd_soc_dai_link *dai_link;
202 struct snd_soc_acpi_mach *mach;
203 struct snd_soc_card *card;
204 struct snd_soc_jack *jack;
205 struct device *dev = &pdev->dev;
206 const char *pname;
207 int ssp_port, tdm_slot, ret;
208
209 mach = dev_get_platdata(dev);
210 pname = mach->mach_params.platform;
211
212 ret = avs_mach_get_ssp_tdm(dev, mach, &ssp_port, &tdm_slot);
213 if (ret)
214 return ret;
215
216 ret = avs_create_dai_link(dev, pname, ssp_port, tdm_slot, &dai_link);
217 if (ret) {
218 dev_err(dev, "Failed to create dai link: %d", ret);
219 return ret;
220 }
221
222 jack = devm_kzalloc(dev, sizeof(*jack), GFP_KERNEL);
223 card = devm_kzalloc(dev, sizeof(*card), GFP_KERNEL);
224 if (!jack || !card)
225 return -ENOMEM;
226
227 card->name = "avs_rt298";
228 card->dev = dev;
229 card->owner = THIS_MODULE;
230 card->suspend_pre = avs_card_suspend_pre;
231 card->resume_post = avs_card_resume_post;
232 card->dai_link = dai_link;
233 card->num_links = 1;
234 card->controls = card_controls;
235 card->num_controls = ARRAY_SIZE(card_controls);
236 card->dapm_widgets = card_widgets;
237 card->num_dapm_widgets = ARRAY_SIZE(card_widgets);
238 card->dapm_routes = card_base_routes;
239 card->num_dapm_routes = ARRAY_SIZE(card_base_routes);
240 card->fully_routed = true;
241 snd_soc_card_set_drvdata(card, jack);
242
243 ret = snd_soc_fixup_dai_links_platform_name(card, pname);
244 if (ret)
245 return ret;
246
247 return devm_snd_soc_register_card(dev, card);
248 }
249
250 static const struct platform_device_id avs_rt298_driver_ids[] = {
251 {
252 .name = "avs_rt298",
253 },
254 {},
255 };
256 MODULE_DEVICE_TABLE(platform, avs_rt298_driver_ids);
257
258 static struct platform_driver avs_rt298_driver = {
259 .probe = avs_rt298_probe,
260 .driver = {
261 .name = "avs_rt298",
262 .pm = &snd_soc_pm_ops,
263 },
264 .id_table = avs_rt298_driver_ids,
265 };
266
267 module_platform_driver(avs_rt298_driver);
268
269 MODULE_DESCRIPTION("Intel rt298 machine driver");
270 MODULE_LICENSE("GPL");
271
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.