Loading...
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 struct snd_soc_codec *codec = codec_dai->codec;
66 struct davinci_vc *davinci_vc = codec->dev->platform_data;
67
68 switch (freq) {
69 case 22579200:
70 case 27000000:
71 case 33868800:
72 davinci_vc->cq93vc.sysclk = freq;
73 return 0;
74 }
75
76 return -EINVAL;
77}
78
79static int cq93vc_set_bias_level(struct snd_soc_codec *codec,
80 enum snd_soc_bias_level level)
81{
82 switch (level) {
83 case SND_SOC_BIAS_ON:
84 snd_soc_write(codec, DAVINCI_VC_REG12,
85 DAVINCI_VC_REG12_POWER_ALL_ON);
86 break;
87 case SND_SOC_BIAS_PREPARE:
88 break;
89 case SND_SOC_BIAS_STANDBY:
90 snd_soc_write(codec, DAVINCI_VC_REG12,
91 DAVINCI_VC_REG12_POWER_ALL_OFF);
92 break;
93 case SND_SOC_BIAS_OFF:
94 /* force all power off */
95 snd_soc_write(codec, DAVINCI_VC_REG12,
96 DAVINCI_VC_REG12_POWER_ALL_OFF);
97 break;
98 }
99 codec->dapm.bias_level = level;
100
101 return 0;
102}
103
104#define CQ93VC_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_16000)
105#define CQ93VC_FORMATS (SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE)
106
107static const struct snd_soc_dai_ops cq93vc_dai_ops = {
108 .digital_mute = cq93vc_mute,
109 .set_sysclk = cq93vc_set_dai_sysclk,
110};
111
112static struct snd_soc_dai_driver cq93vc_dai = {
113 .name = "cq93vc-hifi",
114 .playback = {
115 .stream_name = "Playback",
116 .channels_min = 1,
117 .channels_max = 2,
118 .rates = CQ93VC_RATES,
119 .formats = CQ93VC_FORMATS,},
120 .capture = {
121 .stream_name = "Capture",
122 .channels_min = 1,
123 .channels_max = 2,
124 .rates = CQ93VC_RATES,
125 .formats = CQ93VC_FORMATS,},
126 .ops = &cq93vc_dai_ops,
127};
128
129static int cq93vc_resume(struct snd_soc_codec *codec)
130{
131 cq93vc_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
132
133 return 0;
134}
135
136static int cq93vc_probe(struct snd_soc_codec *codec)
137{
138 struct davinci_vc *davinci_vc = codec->dev->platform_data;
139
140 davinci_vc->cq93vc.codec = codec;
141
142 snd_soc_codec_set_cache_io(codec, davinci_vc->regmap);
143
144 /* Off, with power on */
145 cq93vc_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
146
147 return 0;
148}
149
150static int cq93vc_remove(struct snd_soc_codec *codec)
151{
152 cq93vc_set_bias_level(codec, SND_SOC_BIAS_OFF);
153
154 return 0;
155}
156
157static struct snd_soc_codec_driver soc_codec_dev_cq93vc = {
158 .set_bias_level = cq93vc_set_bias_level,
159 .probe = cq93vc_probe,
160 .remove = cq93vc_remove,
161 .resume = cq93vc_resume,
162 .controls = cq93vc_snd_controls,
163 .num_controls = ARRAY_SIZE(cq93vc_snd_controls),
164};
165
166static int cq93vc_platform_probe(struct platform_device *pdev)
167{
168 return snd_soc_register_codec(&pdev->dev,
169 &soc_codec_dev_cq93vc, &cq93vc_dai, 1);
170}
171
172static int cq93vc_platform_remove(struct platform_device *pdev)
173{
174 snd_soc_unregister_codec(&pdev->dev);
175 return 0;
176}
177
178static struct platform_driver cq93vc_codec_driver = {
179 .driver = {
180 .name = "cq93vc-codec",
181 .owner = THIS_MODULE,
182 },
183
184 .probe = cq93vc_platform_probe,
185 .remove = cq93vc_platform_remove,
186};
187
188module_platform_driver(cq93vc_codec_driver);
189
190MODULE_DESCRIPTION("Texas Instruments DaVinci ASoC CQ0093 Voice Codec Driver");
191MODULE_AUTHOR("Miguel Aguilar");
192MODULE_LICENSE("GPL");