1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * ALSA SoC CQ0093 Voice Codec Driver for DaVinci platforms
5 * Copyright (C) 2010 Texas Instruments, Inc
9 #include <linux/module.h>
10 #include <linux/moduleparam.h>
11 #include <linux/init.h>
13 #include <linux/delay.h>
15 #include <linux/platform_device.h>
16 #include <linux/device.h>
17 #include <linux/slab.h>
18 #include <linux/clk.h>
19 #include <linux/mfd/davinci_voicecodec.h>
20 #include <linux/spi/spi.h>
22 #include <sound/core.h>
23 #include <sound/pcm.h>
24 #include <sound/pcm_params.h>
25 #include <sound/soc.h>
26 #include <sound/initval.h>
28 static const struct snd_kcontrol_new cq93vc_snd_controls[] = {
29 SOC_SINGLE("PGA Capture Volume", DAVINCI_VC_REG05, 0, 0x03, 0),
30 SOC_SINGLE("Mono DAC Playback Volume", DAVINCI_VC_REG09, 0, 0x3f, 0),
33 static int cq93vc_mute(struct snd_soc_dai *dai, int mute, int direction)
35 struct snd_soc_component *component = dai->component;
39 reg = DAVINCI_VC_REG09_MUTE;
43 snd_soc_component_update_bits(component, DAVINCI_VC_REG09, DAVINCI_VC_REG09_MUTE,
49 static int cq93vc_set_dai_sysclk(struct snd_soc_dai *codec_dai,
50 int clk_id, unsigned int freq, int dir)
62 static int cq93vc_set_bias_level(struct snd_soc_component *component,
63 enum snd_soc_bias_level level)
67 snd_soc_component_write(component, DAVINCI_VC_REG12,
68 DAVINCI_VC_REG12_POWER_ALL_ON);
70 case SND_SOC_BIAS_PREPARE:
72 case SND_SOC_BIAS_STANDBY:
73 snd_soc_component_write(component, DAVINCI_VC_REG12,
74 DAVINCI_VC_REG12_POWER_ALL_OFF);
76 case SND_SOC_BIAS_OFF:
77 /* force all power off */
78 snd_soc_component_write(component, DAVINCI_VC_REG12,
79 DAVINCI_VC_REG12_POWER_ALL_OFF);
86 #define CQ93VC_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_16000)
87 #define CQ93VC_FORMATS (SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE)
89 static const struct snd_soc_dai_ops cq93vc_dai_ops = {
90 .mute_stream = cq93vc_mute,
91 .set_sysclk = cq93vc_set_dai_sysclk,
95 static struct snd_soc_dai_driver cq93vc_dai = {
96 .name = "cq93vc-hifi",
98 .stream_name = "Playback",
101 .rates = CQ93VC_RATES,
102 .formats = CQ93VC_FORMATS,},
104 .stream_name = "Capture",
107 .rates = CQ93VC_RATES,
108 .formats = CQ93VC_FORMATS,},
109 .ops = &cq93vc_dai_ops,
112 static int cq93vc_probe(struct snd_soc_component *component)
114 struct davinci_vc *davinci_vc = component->dev->platform_data;
116 snd_soc_component_init_regmap(component, davinci_vc->regmap);
121 static const struct snd_soc_component_driver soc_component_dev_cq93vc = {
122 .set_bias_level = cq93vc_set_bias_level,
123 .probe = cq93vc_probe,
124 .controls = cq93vc_snd_controls,
125 .num_controls = ARRAY_SIZE(cq93vc_snd_controls),
127 .use_pmdown_time = 1,
131 static int cq93vc_platform_probe(struct platform_device *pdev)
133 return devm_snd_soc_register_component(&pdev->dev,
134 &soc_component_dev_cq93vc, &cq93vc_dai, 1);
137 static struct platform_driver cq93vc_codec_driver = {
139 .name = "cq93vc-codec",
142 .probe = cq93vc_platform_probe,
145 module_platform_driver(cq93vc_codec_driver);
147 MODULE_DESCRIPTION("Texas Instruments DaVinci ASoC CQ0093 Voice Codec Driver");
148 MODULE_AUTHOR("Miguel Aguilar");
149 MODULE_LICENSE("GPL");