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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 SPKR_CTL_TLMM_MCLK_EN BIT(1)
34#define SPKR_CTL_TLMM_SCLK_EN BIT(2)
35#define SPKR_CTL_TLMM_DATA1_EN BIT(3)
36#define SPKR_CTL_TLMM_WS_OUT_SEL_MASK GENMASK(7, 6)
37#define SPKR_CTL_TLMM_WS_OUT_SEL_SEC BIT(6)
38#define SPKR_CTL_TLMM_WS_EN_SEL_MASK GENMASK(19, 18)
39#define SPKR_CTL_TLMM_WS_EN_SEL_SEC BIT(18)
40#define DEFAULT_MCLK_RATE 9600000
41
42static int apq8016_sbc_dai_init(struct snd_soc_pcm_runtime *rtd)
43{
44 struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
45 struct snd_soc_dai *codec_dai;
46 struct snd_soc_component *component;
47 struct snd_soc_card *card = rtd->card;
48 struct apq8016_sbc_data *pdata = snd_soc_card_get_drvdata(card);
49 int i, rval;
50 u32 value;
51
52 switch (cpu_dai->id) {
53 case MI2S_PRIMARY:
54 writel(readl(pdata->spkr_iomux) | SPKR_CTL_PRI_WS_SLAVE_SEL_11,
55 pdata->spkr_iomux);
56 break;
57
58 case MI2S_QUATERNARY:
59
60 writel(readl(pdata->mic_iomux) | MIC_CTRL_QUA_WS_SLAVE_SEL_10 |
61 MIC_CTRL_TLMM_SCLK_EN,
62 pdata->mic_iomux);
63 break;
64 case MI2S_SECONDARY:
65
66 value = readl(pdata->spkr_iomux) &
67 ~(SPKR_CTL_TLMM_WS_OUT_SEL_MASK | SPKR_CTL_TLMM_WS_EN_SEL_MASK);
68
69 writel(value | SPKR_CTL_TLMM_MCLK_EN | SPKR_CTL_TLMM_SCLK_EN |
70 SPKR_CTL_TLMM_DATA1_EN | SPKR_CTL_TLMM_WS_OUT_SEL_SEC |
71 SPKR_CTL_TLMM_WS_EN_SEL_SEC, pdata->spkr_iomux);
72 break;
73 case MI2S_TERTIARY:
74 writel(readl(pdata->mic_iomux) | MIC_CTRL_TER_WS_SLAVE_SEL |
75 MIC_CTRL_TLMM_SCLK_EN,
76 pdata->mic_iomux);
77
78 break;
79
80 default:
81 dev_err(card->dev, "unsupported cpu dai configuration\n");
82 return -EINVAL;
83
84 }
85
86 if (!pdata->jack_setup) {
87 struct snd_jack *jack;
88
89 rval = snd_soc_card_jack_new(card, "Headset Jack",
90 SND_JACK_HEADSET |
91 SND_JACK_HEADPHONE |
92 SND_JACK_BTN_0 | SND_JACK_BTN_1 |
93 SND_JACK_BTN_2 | SND_JACK_BTN_3 |
94 SND_JACK_BTN_4,
95 &pdata->jack, NULL, 0);
96
97 if (rval < 0) {
98 dev_err(card->dev, "Unable to add Headphone Jack\n");
99 return rval;
100 }
101
102 jack = pdata->jack.jack;
103
104 snd_jack_set_key(jack, SND_JACK_BTN_0, KEY_PLAYPAUSE);
105 snd_jack_set_key(jack, SND_JACK_BTN_1, KEY_VOICECOMMAND);
106 snd_jack_set_key(jack, SND_JACK_BTN_2, KEY_VOLUMEUP);
107 snd_jack_set_key(jack, SND_JACK_BTN_3, KEY_VOLUMEDOWN);
108 pdata->jack_setup = true;
109 }
110
111 for_each_rtd_codec_dais(rtd, i, codec_dai) {
112
113 component = codec_dai->component;
114
115 rval = snd_soc_component_set_sysclk(component, 0, 0, DEFAULT_MCLK_RATE,
116 SND_SOC_CLOCK_IN);
117 if (rval != 0 && rval != -ENOTSUPP) {
118 dev_warn(card->dev, "Failed to set mclk: %d\n", rval);
119 return rval;
120 }
121 rval = snd_soc_component_set_jack(component, &pdata->jack, NULL);
122 if (rval != 0 && rval != -ENOTSUPP) {
123 dev_warn(card->dev, "Failed to set jack: %d\n", rval);
124 return rval;
125 }
126 }
127
128 return 0;
129}
130
131static void apq8016_sbc_add_ops(struct snd_soc_card *card)
132{
133 struct snd_soc_dai_link *link;
134 int i;
135
136 for_each_card_prelinks(card, i, link)
137 link->init = apq8016_sbc_dai_init;
138}
139
140static const struct snd_soc_dapm_widget apq8016_sbc_dapm_widgets[] = {
141
142 SND_SOC_DAPM_MIC("Handset Mic", NULL),
143 SND_SOC_DAPM_MIC("Headset Mic", NULL),
144 SND_SOC_DAPM_MIC("Secondary Mic", NULL),
145 SND_SOC_DAPM_MIC("Digital Mic1", NULL),
146 SND_SOC_DAPM_MIC("Digital Mic2", NULL),
147};
148
149static int apq8016_sbc_platform_probe(struct platform_device *pdev)
150{
151 struct device *dev = &pdev->dev;
152 struct snd_soc_card *card;
153 struct apq8016_sbc_data *data;
154 int ret;
155
156 data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL);
157 if (!data)
158 return -ENOMEM;
159
160 card = &data->card;
161 card->dev = dev;
162 card->owner = THIS_MODULE;
163 card->dapm_widgets = apq8016_sbc_dapm_widgets;
164 card->num_dapm_widgets = ARRAY_SIZE(apq8016_sbc_dapm_widgets);
165
166 ret = qcom_snd_parse_of(card);
167 if (ret)
168 return ret;
169
170 data->mic_iomux = devm_platform_ioremap_resource_byname(pdev, "mic-iomux");
171 if (IS_ERR(data->mic_iomux))
172 return PTR_ERR(data->mic_iomux);
173
174 data->spkr_iomux = devm_platform_ioremap_resource_byname(pdev, "spkr-iomux");
175 if (IS_ERR(data->spkr_iomux))
176 return PTR_ERR(data->spkr_iomux);
177
178 snd_soc_card_set_drvdata(card, data);
179
180 apq8016_sbc_add_ops(card);
181 return devm_snd_soc_register_card(&pdev->dev, card);
182}
183
184static const struct of_device_id apq8016_sbc_device_id[] __maybe_unused = {
185 { .compatible = "qcom,apq8016-sbc-sndcard" },
186 {},
187};
188MODULE_DEVICE_TABLE(of, apq8016_sbc_device_id);
189
190static struct platform_driver apq8016_sbc_platform_driver = {
191 .driver = {
192 .name = "qcom-apq8016-sbc",
193 .of_match_table = of_match_ptr(apq8016_sbc_device_id),
194 },
195 .probe = apq8016_sbc_platform_probe,
196};
197module_platform_driver(apq8016_sbc_platform_driver);
198
199MODULE_AUTHOR("Srinivas Kandagatla <srinivas.kandagatla@linaro.org");
200MODULE_DESCRIPTION("APQ8016 ASoC Machine Driver");
201MODULE_LICENSE("GPL v2");
202
