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b56e972b MA |
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> | |
923a0042 | 30 | #include <linux/slab.h> |
b56e972b MA |
31 | #include <linux/clk.h> |
32 | #include <linux/mfd/davinci_voicecodec.h> | |
f0fba2ad | 33 | #include <linux/spi/spi.h> |
b56e972b MA |
34 | |
35 | #include <sound/core.h> | |
36 | #include <sound/pcm.h> | |
37 | #include <sound/pcm_params.h> | |
38 | #include <sound/soc.h> | |
b56e972b MA |
39 | #include <sound/initval.h> |
40 | ||
b56e972b MA |
41 | static 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 | ||
46 | static int cq93vc_mute(struct snd_soc_dai *dai, int mute) | |
47 | { | |
48 | struct snd_soc_codec *codec = dai->codec; | |
1201939a | 49 | u8 reg; |
b56e972b MA |
50 | |
51 | if (mute) | |
1201939a | 52 | reg = DAVINCI_VC_REG09_MUTE; |
b56e972b | 53 | else |
1201939a MB |
54 | reg = 0; |
55 | ||
56 | snd_soc_update_bits(codec, DAVINCI_VC_REG09, DAVINCI_VC_REG09_MUTE, | |
57 | reg); | |
b56e972b MA |
58 | |
59 | return 0; | |
60 | } | |
61 | ||
62 | static int cq93vc_set_dai_sysclk(struct snd_soc_dai *codec_dai, | |
63 | int clk_id, unsigned int freq, int dir) | |
64 | { | |
b56e972b MA |
65 | switch (freq) { |
66 | case 22579200: | |
67 | case 27000000: | |
68 | case 33868800: | |
b56e972b MA |
69 | return 0; |
70 | } | |
71 | ||
72 | return -EINVAL; | |
73 | } | |
74 | ||
75 | static 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: | |
1201939a | 80 | snd_soc_write(codec, DAVINCI_VC_REG12, |
b56e972b MA |
81 | DAVINCI_VC_REG12_POWER_ALL_ON); |
82 | break; | |
83 | case SND_SOC_BIAS_PREPARE: | |
84 | break; | |
85 | case SND_SOC_BIAS_STANDBY: | |
1201939a | 86 | snd_soc_write(codec, DAVINCI_VC_REG12, |
b56e972b MA |
87 | DAVINCI_VC_REG12_POWER_ALL_OFF); |
88 | break; | |
89 | case SND_SOC_BIAS_OFF: | |
90 | /* force all power off */ | |
1201939a | 91 | snd_soc_write(codec, DAVINCI_VC_REG12, |
b56e972b MA |
92 | DAVINCI_VC_REG12_POWER_ALL_OFF); |
93 | break; | |
94 | } | |
b56e972b MA |
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 | ||
85e7652d | 102 | static const struct snd_soc_dai_ops cq93vc_dai_ops = { |
b56e972b MA |
103 | .digital_mute = cq93vc_mute, |
104 | .set_sysclk = cq93vc_set_dai_sysclk, | |
105 | }; | |
106 | ||
f0fba2ad LG |
107 | static struct snd_soc_dai_driver cq93vc_dai = { |
108 | .name = "cq93vc-hifi", | |
b56e972b MA |
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 | }; | |
b56e972b | 123 | |
7a34b1c1 | 124 | static struct regmap *cq93vc_get_regmap(struct device *dev) |
49101a25 | 125 | { |
a8784dd0 | 126 | struct davinci_vc *davinci_vc = dev->platform_data; |
49101a25 XL |
127 | |
128 | return davinci_vc->regmap; | |
129 | } | |
130 | ||
f0fba2ad | 131 | static struct snd_soc_codec_driver soc_codec_dev_cq93vc = { |
f0fba2ad | 132 | .set_bias_level = cq93vc_set_bias_level, |
49101a25 | 133 | .get_regmap = cq93vc_get_regmap, |
6f88063c MB |
134 | .controls = cq93vc_snd_controls, |
135 | .num_controls = ARRAY_SIZE(cq93vc_snd_controls), | |
b56e972b | 136 | }; |
b56e972b | 137 | |
f0fba2ad | 138 | static int cq93vc_platform_probe(struct platform_device *pdev) |
b56e972b | 139 | { |
f0fba2ad LG |
140 | return snd_soc_register_codec(&pdev->dev, |
141 | &soc_codec_dev_cq93vc, &cq93vc_dai, 1); | |
b56e972b MA |
142 | } |
143 | ||
f0fba2ad | 144 | static int cq93vc_platform_remove(struct platform_device *pdev) |
b56e972b | 145 | { |
f0fba2ad | 146 | snd_soc_unregister_codec(&pdev->dev); |
b56e972b MA |
147 | return 0; |
148 | } | |
149 | ||
150 | static struct platform_driver cq93vc_codec_driver = { | |
151 | .driver = { | |
f0fba2ad | 152 | .name = "cq93vc-codec", |
f0fba2ad LG |
153 | }, |
154 | ||
155 | .probe = cq93vc_platform_probe, | |
7a79e94e | 156 | .remove = cq93vc_platform_remove, |
b56e972b MA |
157 | }; |
158 | ||
5bbcc3c0 | 159 | module_platform_driver(cq93vc_codec_driver); |
b56e972b MA |
160 | |
161 | MODULE_DESCRIPTION("Texas Instruments DaVinci ASoC CQ0093 Voice Codec Driver"); | |
162 | MODULE_AUTHOR("Miguel Aguilar"); | |
163 | MODULE_LICENSE("GPL"); |