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1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 * ALSA SoC CQ0093 Voice Codec Driver for DaVinci platforms
4 *
5 * Copyright (C) 2010 Texas Instruments, Inc
6 *
7 * Author: Miguel Aguilar <miguel.aguilar@ridgerun.com>
8 */
9#include <linux/module.h>
10#include <linux/moduleparam.h>
11#include <linux/init.h>
12#include <linux/io.h>
13#include <linux/delay.h>
14#include <linux/pm.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>
21
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>
27
28static 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),
31};
32
33static int cq93vc_mute(struct snd_soc_dai *dai, int mute, int direction)
34{
35 struct snd_soc_component *component = dai->component;
36 u8 reg;
37
38 if (mute)
39 reg = DAVINCI_VC_REG09_MUTE;
40 else
41 reg = 0;
42
43 snd_soc_component_update_bits(component, DAVINCI_VC_REG09, DAVINCI_VC_REG09_MUTE,
44 reg);
45
46 return 0;
47}
48
49static int cq93vc_set_dai_sysclk(struct snd_soc_dai *codec_dai,
50 int clk_id, unsigned int freq, int dir)
51{
52 switch (freq) {
53 case 22579200:
54 case 27000000:
55 case 33868800:
56 return 0;
57 }
58
59 return -EINVAL;
60}
61
62static int cq93vc_set_bias_level(struct snd_soc_component *component,
63 enum snd_soc_bias_level level)
64{
65 switch (level) {
66 case SND_SOC_BIAS_ON:
67 snd_soc_component_write(component, DAVINCI_VC_REG12,
68 DAVINCI_VC_REG12_POWER_ALL_ON);
69 break;
70 case SND_SOC_BIAS_PREPARE:
71 break;
72 case SND_SOC_BIAS_STANDBY:
73 snd_soc_component_write(component, DAVINCI_VC_REG12,
74 DAVINCI_VC_REG12_POWER_ALL_OFF);
75 break;
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);
80 break;
81 }
82
83 return 0;
84}
85
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)
88
89static const struct snd_soc_dai_ops cq93vc_dai_ops = {
90 .mute_stream = cq93vc_mute,
91 .set_sysclk = cq93vc_set_dai_sysclk,
92 .no_capture_mute = 1,
93};
94
95static struct snd_soc_dai_driver cq93vc_dai = {
96 .name = "cq93vc-hifi",
97 .playback = {
98 .stream_name = "Playback",
99 .channels_min = 1,
100 .channels_max = 2,
101 .rates = CQ93VC_RATES,
102 .formats = CQ93VC_FORMATS,},
103 .capture = {
104 .stream_name = "Capture",
105 .channels_min = 1,
106 .channels_max = 2,
107 .rates = CQ93VC_RATES,
108 .formats = CQ93VC_FORMATS,},
109 .ops = &cq93vc_dai_ops,
110};
111
112static int cq93vc_probe(struct snd_soc_component *component)
113{
114 struct davinci_vc *davinci_vc = component->dev->platform_data;
115
116 snd_soc_component_init_regmap(component, davinci_vc->regmap);
117
118 return 0;
119}
120
121static 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),
126 .idle_bias_on = 1,
127 .use_pmdown_time = 1,
128 .endianness = 1,
129};
130
131static int cq93vc_platform_probe(struct platform_device *pdev)
132{
133 return devm_snd_soc_register_component(&pdev->dev,
134 &soc_component_dev_cq93vc, &cq93vc_dai, 1);
135}
136
137static struct platform_driver cq93vc_codec_driver = {
138 .driver = {
139 .name = "cq93vc-codec",
140 },
141
142 .probe = cq93vc_platform_probe,
143};
144
145module_platform_driver(cq93vc_codec_driver);
146
147MODULE_DESCRIPTION("Texas Instruments DaVinci ASoC CQ0093 Voice Codec Driver");
148MODULE_AUTHOR("Miguel Aguilar");
149MODULE_LICENSE("GPL");
1/*
2 * ALSA SoC CQ0093 Voice Codec Driver for DaVinci platforms
3 *
4 * Copyright (C) 2010 Texas Instruments, Inc
5 *
6 * Author: Miguel Aguilar <miguel.aguilar@ridgerun.com>
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21 */
22#include <linux/module.h>
23#include <linux/moduleparam.h>
24#include <linux/init.h>
25#include <linux/io.h>
26#include <linux/delay.h>
27#include <linux/pm.h>
28#include <linux/platform_device.h>
29#include <linux/device.h>
30#include <linux/slab.h>
31#include <linux/clk.h>
32#include <linux/mfd/davinci_voicecodec.h>
33#include <linux/spi/spi.h>
34
35#include <sound/core.h>
36#include <sound/pcm.h>
37#include <sound/pcm_params.h>
38#include <sound/soc.h>
39#include <sound/initval.h>
40
41static const struct snd_kcontrol_new cq93vc_snd_controls[] = {
42 SOC_SINGLE("PGA Capture Volume", DAVINCI_VC_REG05, 0, 0x03, 0),
43 SOC_SINGLE("Mono DAC Playback Volume", DAVINCI_VC_REG09, 0, 0x3f, 0),
44};
45
46static int cq93vc_mute(struct snd_soc_dai *dai, int mute)
47{
48 struct snd_soc_codec *codec = dai->codec;
49 u8 reg;
50
51 if (mute)
52 reg = DAVINCI_VC_REG09_MUTE;
53 else
54 reg = 0;
55
56 snd_soc_update_bits(codec, DAVINCI_VC_REG09, DAVINCI_VC_REG09_MUTE,
57 reg);
58
59 return 0;
60}
61
62static int cq93vc_set_dai_sysclk(struct snd_soc_dai *codec_dai,
63 int clk_id, unsigned int freq, int dir)
64{
65 switch (freq) {
66 case 22579200:
67 case 27000000:
68 case 33868800:
69 return 0;
70 }
71
72 return -EINVAL;
73}
74
75static int cq93vc_set_bias_level(struct snd_soc_codec *codec,
76 enum snd_soc_bias_level level)
77{
78 switch (level) {
79 case SND_SOC_BIAS_ON:
80 snd_soc_write(codec, DAVINCI_VC_REG12,
81 DAVINCI_VC_REG12_POWER_ALL_ON);
82 break;
83 case SND_SOC_BIAS_PREPARE:
84 break;
85 case SND_SOC_BIAS_STANDBY:
86 snd_soc_write(codec, DAVINCI_VC_REG12,
87 DAVINCI_VC_REG12_POWER_ALL_OFF);
88 break;
89 case SND_SOC_BIAS_OFF:
90 /* force all power off */
91 snd_soc_write(codec, DAVINCI_VC_REG12,
92 DAVINCI_VC_REG12_POWER_ALL_OFF);
93 break;
94 }
95
96 return 0;
97}
98
99#define CQ93VC_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_16000)
100#define CQ93VC_FORMATS (SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE)
101
102static const struct snd_soc_dai_ops cq93vc_dai_ops = {
103 .digital_mute = cq93vc_mute,
104 .set_sysclk = cq93vc_set_dai_sysclk,
105};
106
107static struct snd_soc_dai_driver cq93vc_dai = {
108 .name = "cq93vc-hifi",
109 .playback = {
110 .stream_name = "Playback",
111 .channels_min = 1,
112 .channels_max = 2,
113 .rates = CQ93VC_RATES,
114 .formats = CQ93VC_FORMATS,},
115 .capture = {
116 .stream_name = "Capture",
117 .channels_min = 1,
118 .channels_max = 2,
119 .rates = CQ93VC_RATES,
120 .formats = CQ93VC_FORMATS,},
121 .ops = &cq93vc_dai_ops,
122};
123
124static struct regmap *cq93vc_get_regmap(struct device *dev)
125{
126 struct davinci_vc *davinci_vc = dev->platform_data;
127
128 return davinci_vc->regmap;
129}
130
131static struct snd_soc_codec_driver soc_codec_dev_cq93vc = {
132 .set_bias_level = cq93vc_set_bias_level,
133 .get_regmap = cq93vc_get_regmap,
134 .component_driver = {
135 .controls = cq93vc_snd_controls,
136 .num_controls = ARRAY_SIZE(cq93vc_snd_controls),
137 },
138};
139
140static int cq93vc_platform_probe(struct platform_device *pdev)
141{
142 return snd_soc_register_codec(&pdev->dev,
143 &soc_codec_dev_cq93vc, &cq93vc_dai, 1);
144}
145
146static int cq93vc_platform_remove(struct platform_device *pdev)
147{
148 snd_soc_unregister_codec(&pdev->dev);
149 return 0;
150}
151
152static struct platform_driver cq93vc_codec_driver = {
153 .driver = {
154 .name = "cq93vc-codec",
155 },
156
157 .probe = cq93vc_platform_probe,
158 .remove = cq93vc_platform_remove,
159};
160
161module_platform_driver(cq93vc_codec_driver);
162
163MODULE_DESCRIPTION("Texas Instruments DaVinci ASoC CQ0093 Voice Codec Driver");
164MODULE_AUTHOR("Miguel Aguilar");
165MODULE_LICENSE("GPL");