1 // SPDX-License-Identifier: GPL-2.0-only
3 * Copyright (c) 2015 The Linux Foundation. All rights reserved.
6 #include <linux/device.h>
7 #include <linux/module.h>
8 #include <linux/kernel.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>
21 struct 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
;
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
35 static int apq8016_sbc_dai_init(struct snd_soc_pcm_runtime
*rtd
)
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
);
44 switch (cpu_dai
->id
) {
46 writel(readl(pdata
->spkr_iomux
) | SPKR_CTL_PRI_WS_SLAVE_SEL_11
,
51 /* Configure the Quat MI2S to TLMM */
52 writel(readl(pdata
->mic_iomux
) | MIC_CTRL_QUA_WS_SLAVE_SEL_10
|
53 MIC_CTRL_TLMM_SCLK_EN
,
57 writel(readl(pdata
->mic_iomux
) | MIC_CTRL_TER_WS_SLAVE_SEL
|
58 MIC_CTRL_TLMM_SCLK_EN
,
64 dev_err(card
->dev
, "unsupported cpu dai configuration\n");
69 if (!pdata
->jack_setup
) {
70 struct snd_jack
*jack
;
72 rval
= snd_soc_card_jack_new(card
, "Headset Jack",
75 SND_JACK_BTN_0
| SND_JACK_BTN_1
|
76 SND_JACK_BTN_2
| SND_JACK_BTN_3
|
78 &pdata
->jack
, NULL
, 0);
81 dev_err(card
->dev
, "Unable to add Headphone Jack\n");
85 jack
= pdata
->jack
.jack
;
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;
94 for_each_rtd_codec_dais(rtd
, i
, codec_dai
) {
96 component
= codec_dai
->component
;
97 /* Set default mclk for internal codec */
98 rval
= snd_soc_component_set_sysclk(component
, 0, 0, DEFAULT_MCLK_RATE
,
100 if (rval
!= 0 && rval
!= -ENOTSUPP
) {
101 dev_warn(card
->dev
, "Failed to set mclk: %d\n", rval
);
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
);
114 static void apq8016_sbc_add_ops(struct snd_soc_card
*card
)
116 struct snd_soc_dai_link
*link
;
119 for_each_card_prelinks(card
, i
, link
)
120 link
->init
= apq8016_sbc_dai_init
;
123 static const struct snd_soc_dapm_widget apq8016_sbc_dapm_widgets
[] = {
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
),
132 static int apq8016_sbc_platform_probe(struct platform_device
*pdev
)
134 struct device
*dev
= &pdev
->dev
;
135 struct snd_soc_card
*card
;
136 struct apq8016_sbc_data
*data
;
137 struct resource
*res
;
140 data
= devm_kzalloc(dev
, sizeof(*data
), GFP_KERNEL
);
146 card
->owner
= THIS_MODULE
;
147 card
->dapm_widgets
= apq8016_sbc_dapm_widgets
;
148 card
->num_dapm_widgets
= ARRAY_SIZE(apq8016_sbc_dapm_widgets
);
150 ret
= qcom_snd_parse_of(card
);
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
);
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
);
164 snd_soc_card_set_drvdata(card
, data
);
166 apq8016_sbc_add_ops(card
);
167 return devm_snd_soc_register_card(&pdev
->dev
, card
);
170 static const struct of_device_id apq8016_sbc_device_id
[] __maybe_unused
= {
171 { .compatible
= "qcom,apq8016-sbc-sndcard" },
174 MODULE_DEVICE_TABLE(of
, apq8016_sbc_device_id
);
176 static struct platform_driver apq8016_sbc_platform_driver
= {
178 .name
= "qcom-apq8016-sbc",
179 .of_match_table
= of_match_ptr(apq8016_sbc_device_id
),
181 .probe
= apq8016_sbc_platform_probe
,
183 module_platform_driver(apq8016_sbc_platform_driver
);
185 MODULE_AUTHOR("Srinivas Kandagatla <srinivas.kandagatla@linaro.org");
186 MODULE_DESCRIPTION("APQ8016 ASoC Machine Driver");
187 MODULE_LICENSE("GPL v2");