1 // SPDX-License-Identifier: GPL-2.0-only
2 //
3 // Copyright(c) 2021-2022 Intel Corporation. All rights reserved.
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
18 #define RT298_CODEC_DAI "rt298-aif1"
19
20 static const struct dmi_system_id kblr_dmi_table[] = {
21 {
22 .matches = {
23 DMI_MATCH(DMI_SYS_VENDOR, "Intel Corporation"),
24 DMI_MATCH(DMI_BOARD_NAME, "Kabylake R DDR4 RVP"),
25 },
26 },
27 {}
28 };
29
30 static const struct snd_kcontrol_new card_controls[] = {
31 SOC_DAPM_PIN_SWITCH("Headphone Jack"),
32 SOC_DAPM_PIN_SWITCH("Mic Jack"),
33 SOC_DAPM_PIN_SWITCH("Speaker"),
34 };
35
36 static const struct snd_soc_dapm_widget card_widgets[] = {
37 SND_SOC_DAPM_HP("Headphone Jack", NULL),
38 SND_SOC_DAPM_MIC("Mic Jack", NULL),
39 SND_SOC_DAPM_SPK("Speaker", NULL),
40 };
41
42 static const struct snd_soc_dapm_route card_base_routes[] = {
43 /* HP jack connectors - unknown if we have jack detect */
44 {"Headphone Jack", NULL, "HPO Pin"},
45 {"MIC1", NULL, "Mic Jack"},
46
47 {"Speaker", NULL, "SPOR"},
48 {"Speaker", NULL, "SPOL"},
49 };
50
51 static struct snd_soc_jack_pin card_headset_pins[] = {
52 {
53 .pin = "Headphone Jack",
54 .mask = SND_JACK_HEADPHONE,
55 },
56 {
57 .pin = "Mic Jack",
58 .mask = SND_JACK_MICROPHONE,
59 },
60 };
61
avs_rt298_codec_init(struct snd_soc_pcm_runtime * runtime)62 static int avs_rt298_codec_init(struct snd_soc_pcm_runtime *runtime)
63 {
64 struct snd_soc_card *card = runtime->card;
65 struct snd_soc_jack_pin *pins;
66 struct snd_soc_jack *jack;
67 int num_pins, ret;
68
69 jack = snd_soc_card_get_drvdata(card);
70 num_pins = ARRAY_SIZE(card_headset_pins);
71
72 pins = devm_kmemdup(card->dev, card_headset_pins, sizeof(*pins) * num_pins, GFP_KERNEL);
73 if (!pins)
74 return -ENOMEM;
75
76 ret = snd_soc_card_jack_new_pins(card, "Headset", SND_JACK_HEADSET | SND_JACK_BTN_0, jack,
77 pins, num_pins);
78 if (ret)
79 return ret;
80
81 return snd_soc_component_set_jack(asoc_rtd_to_codec(runtime, 0)->component, jack, NULL);
82 }
83
avs_rt298_codec_exit(struct snd_soc_pcm_runtime * rtd)84 static void avs_rt298_codec_exit(struct snd_soc_pcm_runtime *rtd)
85 {
86 snd_soc_component_set_jack(asoc_rtd_to_codec(rtd, 0)->component, NULL, NULL);
87 }
88
avs_rt298_be_fixup(struct snd_soc_pcm_runtime * runtime,struct snd_pcm_hw_params * params)89 static int avs_rt298_be_fixup(struct snd_soc_pcm_runtime *runtime, struct snd_pcm_hw_params *params)
90 {
91 struct snd_interval *rate, *channels;
92 struct snd_mask *fmt;
93
94 rate = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE);
95 channels = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS);
96 fmt = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT);
97
98 /* The ADSP will convert the FE rate to 48k, stereo */
99 rate->min = rate->max = 48000;
100 channels->min = channels->max = 2;
101
102 /* set SSP0 to 24 bit */
103 snd_mask_none(fmt);
104 snd_mask_set_format(fmt, SNDRV_PCM_FORMAT_S24_LE);
105
106 return 0;
107 }
108
109 static int
avs_rt298_hw_params(struct snd_pcm_substream * substream,struct snd_pcm_hw_params * params)110 avs_rt298_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params)
111 {
112 struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
113 struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
114 unsigned int clk_freq;
115 int ret;
116
117 if (dmi_first_match(kblr_dmi_table))
118 clk_freq = 24000000;
119 else
120 clk_freq = 19200000;
121
122 ret = snd_soc_dai_set_sysclk(codec_dai, RT298_SCLK_S_PLL, clk_freq, SND_SOC_CLOCK_IN);
123 if (ret < 0)
124 dev_err(rtd->dev, "Set codec sysclk failed: %d\n", ret);
125
126 return ret;
127 }
128
129 static const struct snd_soc_ops avs_rt298_ops = {
130 .hw_params = avs_rt298_hw_params,
131 };
132
avs_create_dai_link(struct device * dev,const char * platform_name,int ssp_port,struct snd_soc_dai_link ** dai_link)133 static int avs_create_dai_link(struct device *dev, const char *platform_name, int ssp_port,
134 struct snd_soc_dai_link **dai_link)
135 {
136 struct snd_soc_dai_link_component *platform;
137 struct snd_soc_dai_link *dl;
138
139 dl = devm_kzalloc(dev, sizeof(*dl), GFP_KERNEL);
140 platform = devm_kzalloc(dev, sizeof(*platform), GFP_KERNEL);
141 if (!dl || !platform)
142 return -ENOMEM;
143
144 platform->name = platform_name;
145
146 dl->name = devm_kasprintf(dev, GFP_KERNEL, "SSP%d-Codec", ssp_port);
147 dl->cpus = devm_kzalloc(dev, sizeof(*dl->cpus), GFP_KERNEL);
148 dl->codecs = devm_kzalloc(dev, sizeof(*dl->codecs), GFP_KERNEL);
149 if (!dl->name || !dl->cpus || !dl->codecs)
150 return -ENOMEM;
151
152 dl->cpus->dai_name = devm_kasprintf(dev, GFP_KERNEL, "SSP%d Pin", ssp_port);
153 dl->codecs->name = devm_kasprintf(dev, GFP_KERNEL, "i2c-INT343A:00");
154 dl->codecs->dai_name = devm_kasprintf(dev, GFP_KERNEL, RT298_CODEC_DAI);
155 if (!dl->cpus->dai_name || !dl->codecs->name || !dl->codecs->dai_name)
156 return -ENOMEM;
157
158 dl->num_cpus = 1;
159 dl->num_codecs = 1;
160 dl->platforms = platform;
161 dl->num_platforms = 1;
162 dl->id = 0;
163 if (dmi_first_match(kblr_dmi_table))
164 dl->dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBS_CFS;
165 else
166 dl->dai_fmt = SND_SOC_DAIFMT_DSP_A | SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBS_CFS;
167 dl->init = avs_rt298_codec_init;
168 dl->exit = avs_rt298_codec_exit;
169 dl->be_hw_params_fixup = avs_rt298_be_fixup;
170 dl->ops = &avs_rt298_ops;
171 dl->nonatomic = 1;
172 dl->no_pcm = 1;
173 dl->dpcm_capture = 1;
174 dl->dpcm_playback = 1;
175
176 *dai_link = dl;
177
178 return 0;
179 }
180
avs_card_suspend_pre(struct snd_soc_card * card)181 static int avs_card_suspend_pre(struct snd_soc_card *card)
182 {
183 struct snd_soc_dai *codec_dai = snd_soc_card_get_codec_dai(card, RT298_CODEC_DAI);
184
185 return snd_soc_component_set_jack(codec_dai->component, NULL, NULL);
186 }
187
avs_card_resume_post(struct snd_soc_card * card)188 static int avs_card_resume_post(struct snd_soc_card *card)
189 {
190 struct snd_soc_dai *codec_dai = snd_soc_card_get_codec_dai(card, RT298_CODEC_DAI);
191 struct snd_soc_jack *jack = snd_soc_card_get_drvdata(card);
192
193 return snd_soc_component_set_jack(codec_dai->component, jack, NULL);
194 }
195
avs_rt298_probe(struct platform_device * pdev)196 static int avs_rt298_probe(struct platform_device *pdev)
197 {
198 struct snd_soc_dai_link *dai_link;
199 struct snd_soc_acpi_mach *mach;
200 struct snd_soc_card *card;
201 struct snd_soc_jack *jack;
202 struct device *dev = &pdev->dev;
203 const char *pname;
204 int ssp_port, ret;
205
206 mach = dev_get_platdata(dev);
207 pname = mach->mach_params.platform;
208 ssp_port = __ffs(mach->mach_params.i2s_link_mask);
209
210 ret = avs_create_dai_link(dev, pname, ssp_port, &dai_link);
211 if (ret) {
212 dev_err(dev, "Failed to create dai link: %d", ret);
213 return ret;
214 }
215
216 jack = devm_kzalloc(dev, sizeof(*jack), GFP_KERNEL);
217 card = devm_kzalloc(dev, sizeof(*card), GFP_KERNEL);
218 if (!jack || !card)
219 return -ENOMEM;
220
221 card->name = "avs_rt298";
222 card->dev = dev;
223 card->owner = THIS_MODULE;
224 card->suspend_pre = avs_card_suspend_pre;
225 card->resume_post = avs_card_resume_post;
226 card->dai_link = dai_link;
227 card->num_links = 1;
228 card->controls = card_controls;
229 card->num_controls = ARRAY_SIZE(card_controls);
230 card->dapm_widgets = card_widgets;
231 card->num_dapm_widgets = ARRAY_SIZE(card_widgets);
232 card->dapm_routes = card_base_routes;
233 card->num_dapm_routes = ARRAY_SIZE(card_base_routes);
234 card->fully_routed = true;
235 snd_soc_card_set_drvdata(card, jack);
236
237 ret = snd_soc_fixup_dai_links_platform_name(card, pname);
238 if (ret)
239 return ret;
240
241 return devm_snd_soc_register_card(dev, card);
242 }
243
244 static struct platform_driver avs_rt298_driver = {
245 .probe = avs_rt298_probe,
246 .driver = {
247 .name = "avs_rt298",
248 .pm = &snd_soc_pm_ops,
249 },
250 };
251
252 module_platform_driver(avs_rt298_driver);
253
254 MODULE_LICENSE("GPL");
255 MODULE_ALIAS("platform:avs_rt298");
256