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-rw-r--r--sound/soc/codecs/Kconfig5
-rw-r--r--sound/soc/codecs/Makefile6
-rw-r--r--sound/soc/codecs/max9877.c270
-rw-r--r--sound/soc/codecs/max9877.h37
4 files changed, 318 insertions, 0 deletions
diff --git a/sound/soc/codecs/Kconfig b/sound/soc/codecs/Kconfig
index b674d3a9f785..4219a41d3867 100644
--- a/sound/soc/codecs/Kconfig
+++ b/sound/soc/codecs/Kconfig
@@ -17,6 +17,7 @@ config SND_SOC_ALL_CODECS
17 select SND_SOC_AK4104 if SPI_MASTER 17 select SND_SOC_AK4104 if SPI_MASTER
18 select SND_SOC_AK4535 if I2C 18 select SND_SOC_AK4535 if I2C
19 select SND_SOC_CS4270 if I2C 19 select SND_SOC_CS4270 if I2C
20 select SND_SOC_MAX9877 if I2C
20 select SND_SOC_PCM3008 21 select SND_SOC_PCM3008
21 select SND_SOC_SPDIF 22 select SND_SOC_SPDIF
22 select SND_SOC_SSM2602 if I2C 23 select SND_SOC_SSM2602 if I2C
@@ -188,3 +189,7 @@ config SND_SOC_WM9712
188 189
189config SND_SOC_WM9713 190config SND_SOC_WM9713
190 tristate 191 tristate
192
193# Amp
194config SND_SOC_MAX9877
195 tristate
diff --git a/sound/soc/codecs/Makefile b/sound/soc/codecs/Makefile
index 301eb08ea5cb..cf111c978223 100644
--- a/sound/soc/codecs/Makefile
+++ b/sound/soc/codecs/Makefile
@@ -38,6 +38,9 @@ snd-soc-wm9705-objs := wm9705.o
38snd-soc-wm9712-objs := wm9712.o 38snd-soc-wm9712-objs := wm9712.o
39snd-soc-wm9713-objs := wm9713.o 39snd-soc-wm9713-objs := wm9713.o
40 40
41# Amp
42snd-soc-max9877-objs := max9877.o
43
41obj-$(CONFIG_SND_SOC_AC97_CODEC) += snd-soc-ac97.o 44obj-$(CONFIG_SND_SOC_AC97_CODEC) += snd-soc-ac97.o
42obj-$(CONFIG_SND_SOC_AD1980) += snd-soc-ad1980.o 45obj-$(CONFIG_SND_SOC_AD1980) += snd-soc-ad1980.o
43obj-$(CONFIG_SND_SOC_AD73311) += snd-soc-ad73311.o 46obj-$(CONFIG_SND_SOC_AD73311) += snd-soc-ad73311.o
@@ -77,3 +80,6 @@ obj-$(CONFIG_SND_SOC_WM9081) += snd-soc-wm9081.o
77obj-$(CONFIG_SND_SOC_WM9705) += snd-soc-wm9705.o 80obj-$(CONFIG_SND_SOC_WM9705) += snd-soc-wm9705.o
78obj-$(CONFIG_SND_SOC_WM9712) += snd-soc-wm9712.o 81obj-$(CONFIG_SND_SOC_WM9712) += snd-soc-wm9712.o
79obj-$(CONFIG_SND_SOC_WM9713) += snd-soc-wm9713.o 82obj-$(CONFIG_SND_SOC_WM9713) += snd-soc-wm9713.o
83
84# Amp
85obj-$(CONFIG_SND_SOC_MAX9877) += snd-soc-max9877.o
diff --git a/sound/soc/codecs/max9877.c b/sound/soc/codecs/max9877.c
new file mode 100644
index 000000000000..7df9a7c0208b
--- /dev/null
+++ b/sound/soc/codecs/max9877.c
@@ -0,0 +1,270 @@
1/*
2 * max9877.c -- amp driver for max9877
3 *
4 * Copyright (C) 2009 Samsung Electronics Co.Ltd
5 * Author: Joonyoung Shim <jy0922.shim@samsung.com>
6 *
7 * This program is free software; you can redistribute it and/or modify it
8 * under the terms of the GNU General Public License as published by the
9 * Free Software Foundation; either version 2 of the License, or (at your
10 * option) any later version.
11 *
12 */
13
14#include <linux/module.h>
15#include <linux/init.h>
16#include <linux/i2c.h>
17#include <sound/soc.h>
18#include <sound/tlv.h>
19
20#include "max9877.h"
21
22static struct i2c_client *i2c;
23
24static u8 max9877_regs[5] = { 0x40, 0x00, 0x00, 0x00, 0x49 };
25
26static void max9877_write_regs(void)
27{
28 if (i2c_master_send(i2c, max9877_regs, 5) != 5)
29 dev_err(&i2c->dev, "i2c write failed\n");
30}
31
32static int max9877_get_reg(struct snd_kcontrol *kcontrol,
33 struct snd_ctl_elem_value *ucontrol)
34{
35 struct soc_mixer_control *mc =
36 (struct soc_mixer_control *)kcontrol->private_value;
37 int reg = mc->reg;
38 int reg2 = mc->rreg;
39 int shift = mc->shift;
40 int mask = mc->max;
41
42 ucontrol->value.integer.value[0] = (max9877_regs[reg] >> shift) & mask;
43
44 if (reg2)
45 ucontrol->value.integer.value[1] =
46 (max9877_regs[reg2] >> shift) & mask;
47
48 return 0;
49}
50
51static int max9877_set_reg(struct snd_kcontrol *kcontrol,
52 struct snd_ctl_elem_value *ucontrol)
53{
54 struct soc_mixer_control *mc =
55 (struct soc_mixer_control *)kcontrol->private_value;
56 int reg = mc->reg;
57 int reg2 = mc->rreg;
58 int shift = mc->shift;
59 int mask = mc->max;
60 int change = 1;
61 int change2 = 1;
62 int ret = 0;
63
64 if (((max9877_regs[reg] >> shift) & mask) ==
65 ucontrol->value.integer.value[0])
66 change = 0;
67
68 if (reg2)
69 if (((max9877_regs[reg2] >> shift) & mask) ==
70 ucontrol->value.integer.value[1])
71 change2 = 0;
72
73 if (change) {
74 max9877_regs[reg] &= ~(mask << shift);
75 max9877_regs[reg] |= ucontrol->value.integer.value[0] << shift;
76 ret = change;
77 }
78
79 if (reg2 && change2) {
80 max9877_regs[reg2] &= ~(mask << shift);
81 max9877_regs[reg2] |= ucontrol->value.integer.value[1] << shift;
82 ret = change2;
83 }
84
85 if (ret)
86 max9877_write_regs();
87
88 return ret;
89}
90
91static int max9877_get_out_mode(struct snd_kcontrol *kcontrol,
92 struct snd_ctl_elem_value *ucontrol)
93{
94 u8 value = max9877_regs[MAX9877_OUTPUT_MODE] & MAX9877_OUTMODE_MASK;
95
96 if (value)
97 value -= 1;
98
99 ucontrol->value.integer.value[0] = value;
100 return 0;
101}
102
103static int max9877_set_out_mode(struct snd_kcontrol *kcontrol,
104 struct snd_ctl_elem_value *ucontrol)
105{
106 u8 value = ucontrol->value.integer.value[0];
107
108 if (value)
109 value += 1;
110
111 if ((max9877_regs[MAX9877_OUTPUT_MODE] & MAX9877_OUTMODE_MASK) == value)
112 return 0;
113
114 max9877_regs[MAX9877_OUTPUT_MODE] |= value;
115 max9877_write_regs();
116 return 1;
117}
118
119static int max9877_get_osc_mode(struct snd_kcontrol *kcontrol,
120 struct snd_ctl_elem_value *ucontrol)
121{
122 u8 value = (max9877_regs[MAX9877_OUTPUT_MODE] & MAX9877_OSC_MASK);
123
124 value = value >> MAX9877_OSC_OFFSET;
125
126 ucontrol->value.integer.value[0] = value;
127 return 0;
128}
129
130static int max9877_set_osc_mode(struct snd_kcontrol *kcontrol,
131 struct snd_ctl_elem_value *ucontrol)
132{
133 u8 value = ucontrol->value.integer.value[0];
134
135 value = value << MAX9877_OSC_OFFSET;
136 if ((max9877_regs[MAX9877_OUTPUT_MODE] & MAX9877_OSC_MASK) == value)
137 return 0;
138
139 max9877_regs[MAX9877_OUTPUT_MODE] |= value;
140 max9877_write_regs();
141 return 1;
142}
143
144static const unsigned int max9877_pgain_tlv[] = {
145 TLV_DB_RANGE_HEAD(2),
146 0, 1, TLV_DB_SCALE_ITEM(0, 900, 0),
147 2, 2, TLV_DB_SCALE_ITEM(2000, 0, 0),
148};
149
150static const unsigned int max9877_output_tlv[] = {
151 TLV_DB_RANGE_HEAD(4),
152 0, 7, TLV_DB_SCALE_ITEM(-7900, 400, 1),
153 8, 15, TLV_DB_SCALE_ITEM(-4700, 300, 0),
154 16, 23, TLV_DB_SCALE_ITEM(-2300, 200, 0),
155 24, 31, TLV_DB_SCALE_ITEM(-700, 100, 0),
156};
157
158static const char *max9877_out_mode[] = {
159 "INA -> SPK",
160 "INA -> HP",
161 "INA -> SPK and HP",
162 "INB -> SPK",
163 "INB -> HP",
164 "INB -> SPK and HP",
165 "INA + INB -> SPK",
166 "INA + INB -> HP",
167 "INA + INB -> SPK and HP",
168};
169
170static const char *max9877_osc_mode[] = {
171 "1176KHz",
172 "1100KHz",
173 "700KHz",
174};
175
176static const struct soc_enum max9877_enum[] = {
177 SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(max9877_out_mode), max9877_out_mode),
178 SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(max9877_osc_mode), max9877_osc_mode),
179};
180
181static const struct snd_kcontrol_new max9877_controls[] = {
182 SOC_SINGLE_EXT_TLV("MAX9877 PGAINA Playback Volume",
183 MAX9877_INPUT_MODE, 0, 2, 0,
184 max9877_get_reg, max9877_set_reg, max9877_pgain_tlv),
185 SOC_SINGLE_EXT_TLV("MAX9877 PGAINB Playback Volume",
186 MAX9877_INPUT_MODE, 2, 2, 0,
187 max9877_get_reg, max9877_set_reg, max9877_pgain_tlv),
188 SOC_SINGLE_EXT_TLV("MAX9877 Amp Speaker Playback Volume",
189 MAX9877_SPK_VOLUME, 0, 31, 0,
190 max9877_get_reg, max9877_set_reg, max9877_output_tlv),
191 SOC_DOUBLE_R_EXT_TLV("MAX9877 Amp HP Playback Volume",
192 MAX9877_HPL_VOLUME, MAX9877_HPR_VOLUME, 0, 31, 0,
193 max9877_get_reg, max9877_set_reg, max9877_output_tlv),
194 SOC_SINGLE_EXT("MAX9877 INB Stereo Switch",
195 MAX9877_INPUT_MODE, 4, 1, 1,
196 max9877_get_reg, max9877_set_reg),
197 SOC_SINGLE_EXT("MAX9877 INA Stereo Switch",
198 MAX9877_INPUT_MODE, 5, 1, 1,
199 max9877_get_reg, max9877_set_reg),
200 SOC_SINGLE_EXT("MAX9877 Zero-crossing detection Switch",
201 MAX9877_INPUT_MODE, 6, 1, 0,
202 max9877_get_reg, max9877_set_reg),
203 SOC_SINGLE_EXT("MAX9877 Bypass Mode Switch",
204 MAX9877_OUTPUT_MODE, 6, 1, 0,
205 max9877_get_reg, max9877_set_reg),
206 SOC_SINGLE_EXT("MAX9877 Shutdown Mode Switch",
207 MAX9877_OUTPUT_MODE, 7, 1, 1,
208 max9877_get_reg, max9877_set_reg),
209 SOC_ENUM_EXT("MAX9877 Output Mode", max9877_enum[0],
210 max9877_get_out_mode, max9877_set_out_mode),
211 SOC_ENUM_EXT("MAX9877 Oscillator Mode", max9877_enum[1],
212 max9877_get_osc_mode, max9877_set_osc_mode),
213};
214
215/* This function is called from ASoC machine driver */
216int max9877_add_controls(struct snd_soc_codec *codec)
217{
218 return snd_soc_add_controls(codec, max9877_controls,
219 ARRAY_SIZE(max9877_controls));
220}
221EXPORT_SYMBOL_GPL(max9877_add_controls);
222
223static int __devinit max9877_i2c_probe(struct i2c_client *client,
224 const struct i2c_device_id *id)
225{
226 i2c = client;
227
228 max9877_write_regs();
229
230 return 0;
231}
232
233static __devexit int max9877_i2c_remove(struct i2c_client *client)
234{
235 i2c = NULL;
236
237 return 0;
238}
239
240static const struct i2c_device_id max9877_i2c_id[] = {
241 { "max9877", 0 },
242 { }
243};
244MODULE_DEVICE_TABLE(i2c, max9877_i2c_id);
245
246static struct i2c_driver max9877_i2c_driver = {
247 .driver = {
248 .name = "max9877",
249 .owner = THIS_MODULE,
250 },
251 .probe = max9877_i2c_probe,
252 .remove = __devexit_p(max9877_i2c_remove),
253 .id_table = max9877_i2c_id,
254};
255
256static int __init max9877_init(void)
257{
258 return i2c_add_driver(&max9877_i2c_driver);
259}
260module_init(max9877_init);
261
262static void __exit max9877_exit(void)
263{
264 i2c_del_driver(&max9877_i2c_driver);
265}
266module_exit(max9877_exit);
267
268MODULE_DESCRIPTION("ASoC MAX9877 amp driver");
269MODULE_AUTHOR("Joonyoung Shim <jy0922.shim@samsung.com>");
270MODULE_LICENSE("GPL");
diff --git a/sound/soc/codecs/max9877.h b/sound/soc/codecs/max9877.h
new file mode 100644
index 000000000000..6da72290ac58
--- /dev/null
+++ b/sound/soc/codecs/max9877.h
@@ -0,0 +1,37 @@
1/*
2 * max9877.h -- amp driver for max9877
3 *
4 * Copyright (C) 2009 Samsung Electronics Co.Ltd
5 * Author: Joonyoung Shim <jy0922.shim@samsung.com>
6 *
7 * This program is free software; you can redistribute it and/or modify it
8 * under the terms of the GNU General Public License as published by the
9 * Free Software Foundation; either version 2 of the License, or (at your
10 * option) any later version.
11 *
12 */
13
14#ifndef _MAX9877_H
15#define _MAX9877_H
16
17#define MAX9877_INPUT_MODE 0x00
18#define MAX9877_SPK_VOLUME 0x01
19#define MAX9877_HPL_VOLUME 0x02
20#define MAX9877_HPR_VOLUME 0x03
21#define MAX9877_OUTPUT_MODE 0x04
22
23/* MAX9877_INPUT_MODE */
24#define MAX9877_INB (1 << 4)
25#define MAX9877_INA (1 << 5)
26#define MAX9877_ZCD (1 << 6)
27
28/* MAX9877_OUTPUT_MODE */
29#define MAX9877_OUTMODE_MASK (15 << 0)
30#define MAX9877_OSC_MASK (3 << 4)
31#define MAX9877_OSC_OFFSET 4
32#define MAX9877_BYPASS (1 << 6)
33#define MAX9877_SHDN (1 << 7)
34
35extern int max9877_add_controls(struct snd_soc_codec *codec);
36
37#endif
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-25 23:52:12 -0500