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5
6#include <linux/device.h>
7#include <linux/module.h>
8#include <linux/kernel.h>
9#include <linux/io.h>
10#include <linux/of.h>
11#include <linux/clk.h>
12#include <linux/platform_device.h>
13#include <sound/pcm.h>
14#include <sound/pcm_params.h>
15#include <sound/jack.h>
16#include <sound/soc.h>
17#include <uapi/linux/input-event-codes.h>
18#include <dt-bindings/sound/apq8016-lpass.h>
19#include "common.h"
20
21struct apq8016_sbc_data {
22 struct snd_soc_card card;
23 void __iomem *mic_iomux;
24 void __iomem *spkr_iomux;
25 struct snd_soc_jack jack;
26 bool jack_setup;
27};
28
29#define MIC_CTRL_TER_WS_SLAVE_SEL BIT(21)
30#define MIC_CTRL_QUA_WS_SLAVE_SEL_10 BIT(17)
31#define MIC_CTRL_TLMM_SCLK_EN BIT(1)
32#define SPKR_CTL_PRI_WS_SLAVE_SEL_11 (BIT(17) | BIT(16))
33#define DEFAULT_MCLK_RATE 9600000
34
35static int apq8016_sbc_dai_init(struct snd_soc_pcm_runtime *rtd)
36{
37 struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
38 struct snd_soc_dai *codec_dai;
39 struct snd_soc_component *component;
40 struct snd_soc_card *card = rtd->card;
41 struct apq8016_sbc_data *pdata = snd_soc_card_get_drvdata(card);
42 int i, rval;
43
44 switch (cpu_dai->id) {
45 case MI2S_PRIMARY:
46 writel(readl(pdata->spkr_iomux) | SPKR_CTL_PRI_WS_SLAVE_SEL_11,
47 pdata->spkr_iomux);
48 break;
49
50 case MI2S_QUATERNARY:
51
52 writel(readl(pdata->mic_iomux) | MIC_CTRL_QUA_WS_SLAVE_SEL_10 |
53 MIC_CTRL_TLMM_SCLK_EN,
54 pdata->mic_iomux);
55 break;
56 case MI2S_TERTIARY:
57 writel(readl(pdata->mic_iomux) | MIC_CTRL_TER_WS_SLAVE_SEL |
58 MIC_CTRL_TLMM_SCLK_EN,
59 pdata->mic_iomux);
60
61 break;
62
63 default:
64 dev_err(card->dev, "unsupported cpu dai configuration\n");
65 return -EINVAL;
66
67 }
68
69 if (!pdata->jack_setup) {
70 struct snd_jack *jack;
71
72 rval = snd_soc_card_jack_new(card, "Headset Jack",
73 SND_JACK_HEADSET |
74 SND_JACK_HEADPHONE |
75 SND_JACK_BTN_0 | SND_JACK_BTN_1 |
76 SND_JACK_BTN_2 | SND_JACK_BTN_3 |
77 SND_JACK_BTN_4,
78 &pdata->jack, NULL, 0);
79
80 if (rval < 0) {
81 dev_err(card->dev, "Unable to add Headphone Jack\n");
82 return rval;
83 }
84
85 jack = pdata->jack.jack;
86
87 snd_jack_set_key(jack, SND_JACK_BTN_0, KEY_PLAYPAUSE);
88 snd_jack_set_key(jack, SND_JACK_BTN_1, KEY_VOICECOMMAND);
89 snd_jack_set_key(jack, SND_JACK_BTN_2, KEY_VOLUMEUP);
90 snd_jack_set_key(jack, SND_JACK_BTN_3, KEY_VOLUMEDOWN);
91 pdata->jack_setup = true;
92 }
93
94 for_each_rtd_codec_dais(rtd, i, codec_dai) {
95
96 component = codec_dai->component;
97
98 rval = snd_soc_component_set_sysclk(component, 0, 0, DEFAULT_MCLK_RATE,
99 SND_SOC_CLOCK_IN);
100 if (rval != 0 && rval != -ENOTSUPP) {
101 dev_warn(card->dev, "Failed to set mclk: %d\n", rval);
102 return rval;
103 }
104 rval = snd_soc_component_set_jack(component, &pdata->jack, NULL);
105 if (rval != 0 && rval != -ENOTSUPP) {
106 dev_warn(card->dev, "Failed to set jack: %d\n", rval);
107 return rval;
108 }
109 }
110
111 return 0;
112}
113
114static void apq8016_sbc_add_ops(struct snd_soc_card *card)
115{
116 struct snd_soc_dai_link *link;
117 int i;
118
119 for_each_card_prelinks(card, i, link)
120 link->init = apq8016_sbc_dai_init;
121}
122
123static const struct snd_soc_dapm_widget apq8016_sbc_dapm_widgets[] = {
124
125 SND_SOC_DAPM_MIC("Handset Mic", NULL),
126 SND_SOC_DAPM_MIC("Headset Mic", NULL),
127 SND_SOC_DAPM_MIC("Secondary Mic", NULL),
128 SND_SOC_DAPM_MIC("Digital Mic1", NULL),
129 SND_SOC_DAPM_MIC("Digital Mic2", NULL),
130};
131
132static int apq8016_sbc_platform_probe(struct platform_device *pdev)
133{
134 struct device *dev = &pdev->dev;
135 struct snd_soc_card *card;
136 struct apq8016_sbc_data *data;
137 struct resource *res;
138 int ret;
139
140 data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL);
141 if (!data)
142 return -ENOMEM;
143
144 card = &data->card;
145 card->dev = dev;
146 card->owner = THIS_MODULE;
147 card->dapm_widgets = apq8016_sbc_dapm_widgets;
148 card->num_dapm_widgets = ARRAY_SIZE(apq8016_sbc_dapm_widgets);
149
150 ret = qcom_snd_parse_of(card);
151 if (ret)
152 return ret;
153
154 res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "mic-iomux");
155 data->mic_iomux = devm_ioremap_resource(dev, res);
156 if (IS_ERR(data->mic_iomux))
157 return PTR_ERR(data->mic_iomux);
158
159 res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "spkr-iomux");
160 data->spkr_iomux = devm_ioremap_resource(dev, res);
161 if (IS_ERR(data->spkr_iomux))
162 return PTR_ERR(data->spkr_iomux);
163
164 snd_soc_card_set_drvdata(card, data);
165
166 apq8016_sbc_add_ops(card);
167 return devm_snd_soc_register_card(&pdev->dev, card);
168}
169
170static const struct of_device_id apq8016_sbc_device_id[] __maybe_unused = {
171 { .compatible = "qcom,apq8016-sbc-sndcard" },
172 {},
173};
174MODULE_DEVICE_TABLE(of, apq8016_sbc_device_id);
175
176static struct platform_driver apq8016_sbc_platform_driver = {
177 .driver = {
178 .name = "qcom-apq8016-sbc",
179 .of_match_table = of_match_ptr(apq8016_sbc_device_id),
180 },
181 .probe = apq8016_sbc_platform_probe,
182};
183module_platform_driver(apq8016_sbc_platform_driver);
184
185MODULE_AUTHOR("Srinivas Kandagatla <srinivas.kandagatla@linaro.org");
186MODULE_DESCRIPTION("APQ8016 ASoC Machine Driver");
187MODULE_LICENSE("GPL v2");
188
