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Cliff Caib7138212008-09-05 18:09:57 +08001/*
2 * File: sound/soc/codecs/ssm2602.c
3 * Author: Cliff Cai <Cliff.Cai@analog.com>
4 *
5 * Created: Tue June 06 2008
6 * Description: Driver for ssm2602 sound chip
7 *
8 * Modified:
9 * Copyright 2008 Analog Devices Inc.
10 *
11 * Bugs: Enter bugs at http://blackfin.uclinux.org/
12 *
13 * This program is free software; you can redistribute it and/or modify
14 * it under the terms of the GNU General Public License as published by
15 * the Free Software Foundation; either version 2 of the License, or
16 * (at your option) any later version.
17 *
18 * This program is distributed in the hope that it will be useful,
19 * but WITHOUT ANY WARRANTY; without even the implied warranty of
20 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
21 * GNU General Public License for more details.
22 *
23 * You should have received a copy of the GNU General Public License
24 * along with this program; if not, see the file COPYING, or write
25 * to the Free Software Foundation, Inc.,
26 * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
27 */
28
29#include <linux/module.h>
30#include <linux/moduleparam.h>
31#include <linux/init.h>
32#include <linux/delay.h>
33#include <linux/pm.h>
34#include <linux/i2c.h>
Mike Frysingerb39e2852011-04-07 02:05:11 -040035#include <linux/spi/spi.h>
Cliff Caib7138212008-09-05 18:09:57 +080036#include <linux/platform_device.h>
Tejun Heo5a0e3ad2010-03-24 17:04:11 +090037#include <linux/slab.h>
Cliff Caib7138212008-09-05 18:09:57 +080038#include <sound/core.h>
39#include <sound/pcm.h>
40#include <sound/pcm_params.h>
41#include <sound/soc.h>
Cliff Caib7138212008-09-05 18:09:57 +080042#include <sound/initval.h>
Lars-Peter Clausenf3eee002011-05-08 09:24:46 -070043#include <sound/tlv.h>
Cliff Caib7138212008-09-05 18:09:57 +080044
45#include "ssm2602.h"
46
Cliff Caib7138212008-09-05 18:09:57 +080047#define SSM2602_VERSION "0.1"
48
Lars-Peter Clausenb1f7b2b2011-05-08 09:24:43 -070049enum ssm2602_type {
50 SSM2602,
51 SSM2604,
52};
53
Cliff Caib7138212008-09-05 18:09:57 +080054/* codec private data */
55struct ssm2602_priv {
56 unsigned int sysclk;
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +000057 enum snd_soc_control_type control_type;
Cliff Caib7138212008-09-05 18:09:57 +080058 struct snd_pcm_substream *master_substream;
59 struct snd_pcm_substream *slave_substream;
Lars-Peter Clausenb1f7b2b2011-05-08 09:24:43 -070060
61 enum ssm2602_type type;
Cliff Caib7138212008-09-05 18:09:57 +080062};
63
64/*
65 * ssm2602 register cache
66 * We can't read the ssm2602 register space when we are
67 * using 2 wire for device control, so we cache them instead.
68 * There is no point in caching the reset register
69 */
70static const u16 ssm2602_reg[SSM2602_CACHEREGNUM] = {
Lars-Peter Clausen7164bdb2011-05-08 09:24:41 -070071 0x0097, 0x0097, 0x0079, 0x0079,
72 0x000a, 0x0008, 0x009f, 0x000a,
Cliff Caib7138212008-09-05 18:09:57 +080073 0x0000, 0x0000
74};
75
Cliff Cai93547e82011-03-27 17:22:57 -040076#define ssm2602_reset(c) snd_soc_write(c, SSM2602_RESET, 0)
Cliff Caib7138212008-09-05 18:09:57 +080077
78/*Appending several "None"s just for OSS mixer use*/
79static const char *ssm2602_input_select[] = {
80 "Line", "Mic", "None", "None", "None",
81 "None", "None", "None",
82};
83
84static const char *ssm2602_deemph[] = {"None", "32Khz", "44.1Khz", "48Khz"};
85
86static const struct soc_enum ssm2602_enum[] = {
87 SOC_ENUM_SINGLE(SSM2602_APANA, 2, 2, ssm2602_input_select),
88 SOC_ENUM_SINGLE(SSM2602_APDIGI, 1, 4, ssm2602_deemph),
89};
90
Lars-Peter Clausenf3eee002011-05-08 09:24:46 -070091static const unsigned int ssm260x_outmix_tlv[] = {
92 TLV_DB_RANGE_HEAD(2),
93 0, 47, TLV_DB_SCALE_ITEM(TLV_DB_GAIN_MUTE, 0, 0),
94 48, 127, TLV_DB_SCALE_ITEM(-7400, 100, 0),
95};
96
97static const DECLARE_TLV_DB_SCALE(ssm260x_inpga_tlv, -3450, 150, 0);
98static const DECLARE_TLV_DB_SCALE(ssm260x_sidetone_tlv, -1500, 300, 0);
99
Lars-Peter Clausenb1f7b2b2011-05-08 09:24:43 -0700100static const struct snd_kcontrol_new ssm260x_snd_controls[] = {
Lars-Peter Clausenf3eee002011-05-08 09:24:46 -0700101SOC_DOUBLE_R_TLV("Capture Volume", SSM2602_LINVOL, SSM2602_RINVOL, 0, 45, 0,
102 ssm260x_inpga_tlv),
Cliff Caib7138212008-09-05 18:09:57 +0800103SOC_DOUBLE_R("Capture Switch", SSM2602_LINVOL, SSM2602_RINVOL, 7, 1, 1),
104
Cliff Caib7138212008-09-05 18:09:57 +0800105SOC_SINGLE("ADC High Pass Filter Switch", SSM2602_APDIGI, 0, 1, 1),
106SOC_SINGLE("Store DC Offset Switch", SSM2602_APDIGI, 4, 1, 0),
107
Cliff Caib7138212008-09-05 18:09:57 +0800108SOC_ENUM("Playback De-emphasis", ssm2602_enum[1]),
109};
110
Lars-Peter Clausenb1f7b2b2011-05-08 09:24:43 -0700111static const struct snd_kcontrol_new ssm2602_snd_controls[] = {
Lars-Peter Clausenf3eee002011-05-08 09:24:46 -0700112SOC_DOUBLE_R_TLV("Master Playback Volume", SSM2602_LOUT1V, SSM2602_ROUT1V,
113 0, 127, 0, ssm260x_outmix_tlv),
Lars-Peter Clausenb1f7b2b2011-05-08 09:24:43 -0700114SOC_DOUBLE_R("Master Playback ZC Switch", SSM2602_LOUT1V, SSM2602_ROUT1V,
115 7, 1, 0),
Lars-Peter Clausenf3eee002011-05-08 09:24:46 -0700116SOC_SINGLE_TLV("Sidetone Playback Volume", SSM2602_APANA, 6, 3, 1,
117 ssm260x_sidetone_tlv),
Lars-Peter Clausenb1f7b2b2011-05-08 09:24:43 -0700118
119SOC_SINGLE("Mic Boost (+20dB)", SSM2602_APANA, 0, 1, 0),
120SOC_SINGLE("Mic Boost2 (+20dB)", SSM2602_APANA, 8, 1, 0),
121SOC_SINGLE("Mic Switch", SSM2602_APANA, 1, 1, 1),
122};
123
Cliff Caib7138212008-09-05 18:09:57 +0800124/* Output Mixer */
Lars-Peter Clausenb1f7b2b2011-05-08 09:24:43 -0700125static const struct snd_kcontrol_new ssm260x_output_mixer_controls[] = {
Cliff Caib7138212008-09-05 18:09:57 +0800126SOC_DAPM_SINGLE("Line Bypass Switch", SSM2602_APANA, 3, 1, 0),
Cliff Caib7138212008-09-05 18:09:57 +0800127SOC_DAPM_SINGLE("HiFi Playback Switch", SSM2602_APANA, 4, 1, 0),
Lars-Peter Clausenb1f7b2b2011-05-08 09:24:43 -0700128SOC_DAPM_SINGLE("Mic Sidetone Switch", SSM2602_APANA, 5, 1, 0),
Cliff Caib7138212008-09-05 18:09:57 +0800129};
130
131/* Input mux */
132static const struct snd_kcontrol_new ssm2602_input_mux_controls =
133SOC_DAPM_ENUM("Input Select", ssm2602_enum[0]);
134
Lars-Peter Clausenb1f7b2b2011-05-08 09:24:43 -0700135static const struct snd_soc_dapm_widget ssm260x_dapm_widgets[] = {
Cliff Caib7138212008-09-05 18:09:57 +0800136SND_SOC_DAPM_DAC("DAC", "HiFi Playback", SSM2602_PWR, 3, 1),
Cliff Caib7138212008-09-05 18:09:57 +0800137SND_SOC_DAPM_ADC("ADC", "HiFi Capture", SSM2602_PWR, 2, 1),
Cliff Caib7138212008-09-05 18:09:57 +0800138SND_SOC_DAPM_PGA("Line Input", SSM2602_PWR, 0, 1, NULL, 0),
Lars-Peter Clausenb1f7b2b2011-05-08 09:24:43 -0700139
Lars-Peter Clausen2a438012011-05-08 09:24:45 -0700140SND_SOC_DAPM_SUPPLY("Digital Core Power", SSM2602_ACTIVE, 0, 0, 0, 0),
141
Lars-Peter Clausenb1f7b2b2011-05-08 09:24:43 -0700142SND_SOC_DAPM_OUTPUT("LOUT"),
143SND_SOC_DAPM_OUTPUT("ROUT"),
Cliff Caib7138212008-09-05 18:09:57 +0800144SND_SOC_DAPM_INPUT("RLINEIN"),
145SND_SOC_DAPM_INPUT("LLINEIN"),
146};
147
Lars-Peter Clausenb1f7b2b2011-05-08 09:24:43 -0700148static const struct snd_soc_dapm_widget ssm2602_dapm_widgets[] = {
149SND_SOC_DAPM_MIXER("Output Mixer", SSM2602_PWR, 4, 1,
150 ssm260x_output_mixer_controls,
151 ARRAY_SIZE(ssm260x_output_mixer_controls)),
152
153SND_SOC_DAPM_MUX("Input Mux", SND_SOC_NOPM, 0, 0, &ssm2602_input_mux_controls),
154SND_SOC_DAPM_MICBIAS("Mic Bias", SSM2602_PWR, 1, 1),
155
156SND_SOC_DAPM_OUTPUT("LHPOUT"),
157SND_SOC_DAPM_OUTPUT("RHPOUT"),
158SND_SOC_DAPM_INPUT("MICIN"),
159};
160
161static const struct snd_soc_dapm_widget ssm2604_dapm_widgets[] = {
162SND_SOC_DAPM_MIXER("Output Mixer", SND_SOC_NOPM, 0, 0,
163 ssm260x_output_mixer_controls,
164 ARRAY_SIZE(ssm260x_output_mixer_controls) - 1), /* Last element is the mic */
165};
166
167static const struct snd_soc_dapm_route ssm260x_routes[] = {
Lars-Peter Clausen2a438012011-05-08 09:24:45 -0700168 {"DAC", NULL, "Digital Core Power"},
169 {"ADC", NULL, "Digital Core Power"},
170
Cliff Caib7138212008-09-05 18:09:57 +0800171 {"Output Mixer", "Line Bypass Switch", "Line Input"},
172 {"Output Mixer", "HiFi Playback Switch", "DAC"},
Cliff Caib7138212008-09-05 18:09:57 +0800173
Cliff Caib7138212008-09-05 18:09:57 +0800174 {"ROUT", NULL, "Output Mixer"},
Cliff Caib7138212008-09-05 18:09:57 +0800175 {"LOUT", NULL, "Output Mixer"},
176
Lars-Peter Clausenb1f7b2b2011-05-08 09:24:43 -0700177 {"Line Input", NULL, "LLINEIN"},
178 {"Line Input", NULL, "RLINEIN"},
179};
180
181static const struct snd_soc_dapm_route ssm2602_routes[] = {
182 {"Output Mixer", "Mic Sidetone Switch", "Mic Bias"},
183
184 {"RHPOUT", NULL, "Output Mixer"},
185 {"LHPOUT", NULL, "Output Mixer"},
186
Cliff Caib7138212008-09-05 18:09:57 +0800187 {"Input Mux", "Line", "Line Input"},
188 {"Input Mux", "Mic", "Mic Bias"},
189 {"ADC", NULL, "Input Mux"},
190
Cliff Caib7138212008-09-05 18:09:57 +0800191 {"Mic Bias", NULL, "MICIN"},
192};
193
Lars-Peter Clausenb1f7b2b2011-05-08 09:24:43 -0700194static const struct snd_soc_dapm_route ssm2604_routes[] = {
195 {"ADC", NULL, "Line Input"},
196};
Cliff Caib7138212008-09-05 18:09:57 +0800197
Lars-Peter Clausen0b4cd2e2011-05-05 16:59:10 +0200198struct ssm2602_coeff {
Cliff Caib7138212008-09-05 18:09:57 +0800199 u32 mclk;
200 u32 rate;
Lars-Peter Clausen0b4cd2e2011-05-05 16:59:10 +0200201 u8 srate;
Cliff Caib7138212008-09-05 18:09:57 +0800202};
203
Lars-Peter Clausen0b4cd2e2011-05-05 16:59:10 +0200204#define SSM2602_COEFF_SRATE(sr, bosr, usb) (((sr) << 2) | ((bosr) << 1) | (usb))
205
206/* codec mclk clock coefficients */
207static const struct ssm2602_coeff ssm2602_coeff_table[] = {
Cliff Caib7138212008-09-05 18:09:57 +0800208 /* 48k */
Lars-Peter Clausen0b4cd2e2011-05-05 16:59:10 +0200209 {12288000, 48000, SSM2602_COEFF_SRATE(0x0, 0x0, 0x0)},
210 {18432000, 48000, SSM2602_COEFF_SRATE(0x0, 0x1, 0x0)},
211 {12000000, 48000, SSM2602_COEFF_SRATE(0x0, 0x0, 0x1)},
Cliff Caib7138212008-09-05 18:09:57 +0800212
213 /* 32k */
Lars-Peter Clausen0b4cd2e2011-05-05 16:59:10 +0200214 {12288000, 32000, SSM2602_COEFF_SRATE(0x6, 0x0, 0x0)},
215 {18432000, 32000, SSM2602_COEFF_SRATE(0x6, 0x1, 0x0)},
216 {12000000, 32000, SSM2602_COEFF_SRATE(0x6, 0x0, 0x1)},
Cliff Caib7138212008-09-05 18:09:57 +0800217
218 /* 8k */
Lars-Peter Clausen0b4cd2e2011-05-05 16:59:10 +0200219 {12288000, 8000, SSM2602_COEFF_SRATE(0x3, 0x0, 0x0)},
220 {18432000, 8000, SSM2602_COEFF_SRATE(0x3, 0x1, 0x0)},
221 {11289600, 8000, SSM2602_COEFF_SRATE(0xb, 0x0, 0x0)},
222 {16934400, 8000, SSM2602_COEFF_SRATE(0xb, 0x1, 0x0)},
223 {12000000, 8000, SSM2602_COEFF_SRATE(0x3, 0x0, 0x1)},
Cliff Caib7138212008-09-05 18:09:57 +0800224
225 /* 96k */
Lars-Peter Clausen0b4cd2e2011-05-05 16:59:10 +0200226 {12288000, 96000, SSM2602_COEFF_SRATE(0x7, 0x0, 0x0)},
227 {18432000, 96000, SSM2602_COEFF_SRATE(0x7, 0x1, 0x0)},
228 {12000000, 96000, SSM2602_COEFF_SRATE(0x7, 0x0, 0x1)},
Cliff Caib7138212008-09-05 18:09:57 +0800229
230 /* 44.1k */
Lars-Peter Clausen0b4cd2e2011-05-05 16:59:10 +0200231 {11289600, 44100, SSM2602_COEFF_SRATE(0x8, 0x0, 0x0)},
232 {16934400, 44100, SSM2602_COEFF_SRATE(0x8, 0x1, 0x0)},
233 {12000000, 44100, SSM2602_COEFF_SRATE(0x8, 0x1, 0x1)},
Cliff Caib7138212008-09-05 18:09:57 +0800234
235 /* 88.2k */
Lars-Peter Clausen0b4cd2e2011-05-05 16:59:10 +0200236 {11289600, 88200, SSM2602_COEFF_SRATE(0xf, 0x0, 0x0)},
237 {16934400, 88200, SSM2602_COEFF_SRATE(0xf, 0x1, 0x0)},
238 {12000000, 88200, SSM2602_COEFF_SRATE(0xf, 0x1, 0x1)},
Cliff Caib7138212008-09-05 18:09:57 +0800239};
240
Lars-Peter Clausen0b4cd2e2011-05-05 16:59:10 +0200241static inline int ssm2602_get_coeff(int mclk, int rate)
Cliff Caib7138212008-09-05 18:09:57 +0800242{
243 int i;
244
Lars-Peter Clausen0b4cd2e2011-05-05 16:59:10 +0200245 for (i = 0; i < ARRAY_SIZE(ssm2602_coeff_table); i++) {
246 if (ssm2602_coeff_table[i].rate == rate &&
247 ssm2602_coeff_table[i].mclk == mclk)
248 return ssm2602_coeff_table[i].srate;
Cliff Caib7138212008-09-05 18:09:57 +0800249 }
Lars-Peter Clausen0b4cd2e2011-05-05 16:59:10 +0200250 return -EINVAL;
Cliff Caib7138212008-09-05 18:09:57 +0800251}
252
253static int ssm2602_hw_params(struct snd_pcm_substream *substream,
Mark Browndee89c42008-11-18 22:11:38 +0000254 struct snd_pcm_hw_params *params,
255 struct snd_soc_dai *dai)
Cliff Caib7138212008-09-05 18:09:57 +0800256{
Cliff Caib7138212008-09-05 18:09:57 +0800257 struct snd_soc_pcm_runtime *rtd = substream->private_data;
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000258 struct snd_soc_codec *codec = rtd->codec;
Mark Brownb2c812e2010-04-14 15:35:19 +0900259 struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec);
Cliff Cai93547e82011-03-27 17:22:57 -0400260 u16 iface = snd_soc_read(codec, SSM2602_IFACE) & 0xfff3;
Lars-Peter Clausen0b4cd2e2011-05-05 16:59:10 +0200261 int srate = ssm2602_get_coeff(ssm2602->sysclk, params_rate(params));
Cliff Caib7138212008-09-05 18:09:57 +0800262
Karl Beldanfaab5a32008-11-20 15:39:27 +0100263 if (substream == ssm2602->slave_substream) {
Cliff Cai93547e82011-03-27 17:22:57 -0400264 dev_dbg(codec->dev, "Ignoring hw_params for slave substream\n");
Karl Beldanfaab5a32008-11-20 15:39:27 +0100265 return 0;
266 }
267
Lars-Peter Clausen0b4cd2e2011-05-05 16:59:10 +0200268 if (srate < 0)
269 return srate;
Cliff Caib7138212008-09-05 18:09:57 +0800270
Cliff Cai93547e82011-03-27 17:22:57 -0400271 snd_soc_write(codec, SSM2602_SRATE, srate);
Cliff Caib7138212008-09-05 18:09:57 +0800272
273 /* bit size */
274 switch (params_format(params)) {
275 case SNDRV_PCM_FORMAT_S16_LE:
276 break;
277 case SNDRV_PCM_FORMAT_S20_3LE:
278 iface |= 0x0004;
279 break;
280 case SNDRV_PCM_FORMAT_S24_LE:
281 iface |= 0x0008;
282 break;
283 case SNDRV_PCM_FORMAT_S32_LE:
284 iface |= 0x000c;
285 break;
286 }
Cliff Cai93547e82011-03-27 17:22:57 -0400287 snd_soc_write(codec, SSM2602_IFACE, iface);
Cliff Caib7138212008-09-05 18:09:57 +0800288 return 0;
289}
290
Mark Browndee89c42008-11-18 22:11:38 +0000291static int ssm2602_startup(struct snd_pcm_substream *substream,
292 struct snd_soc_dai *dai)
Cliff Caib7138212008-09-05 18:09:57 +0800293{
294 struct snd_soc_pcm_runtime *rtd = substream->private_data;
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000295 struct snd_soc_codec *codec = rtd->codec;
Mark Brownb2c812e2010-04-14 15:35:19 +0900296 struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec);
Karl Beldanfaab5a32008-11-20 15:39:27 +0100297 struct i2c_client *i2c = codec->control_data;
Cliff Caib7138212008-09-05 18:09:57 +0800298 struct snd_pcm_runtime *master_runtime;
299
300 /* The DAI has shared clocks so if we already have a playback or
301 * capture going then constrain this substream to match it.
Karl Beldanfaab5a32008-11-20 15:39:27 +0100302 * TODO: the ssm2602 allows pairs of non-matching PB/REC rates
Cliff Caib7138212008-09-05 18:09:57 +0800303 */
304 if (ssm2602->master_substream) {
305 master_runtime = ssm2602->master_substream->runtime;
Karl Beldanfaab5a32008-11-20 15:39:27 +0100306 dev_dbg(&i2c->dev, "Constraining to %d bits at %dHz\n",
307 master_runtime->sample_bits,
308 master_runtime->rate);
309
Cliff Caif692fce2009-06-02 00:18:54 -0400310 if (master_runtime->rate != 0)
311 snd_pcm_hw_constraint_minmax(substream->runtime,
312 SNDRV_PCM_HW_PARAM_RATE,
313 master_runtime->rate,
314 master_runtime->rate);
Cliff Caib7138212008-09-05 18:09:57 +0800315
Cliff Caif692fce2009-06-02 00:18:54 -0400316 if (master_runtime->sample_bits != 0)
317 snd_pcm_hw_constraint_minmax(substream->runtime,
318 SNDRV_PCM_HW_PARAM_SAMPLE_BITS,
319 master_runtime->sample_bits,
320 master_runtime->sample_bits);
Cliff Caib7138212008-09-05 18:09:57 +0800321
322 ssm2602->slave_substream = substream;
323 } else
324 ssm2602->master_substream = substream;
325
326 return 0;
327}
328
Mark Browndee89c42008-11-18 22:11:38 +0000329static void ssm2602_shutdown(struct snd_pcm_substream *substream,
330 struct snd_soc_dai *dai)
Cliff Caib7138212008-09-05 18:09:57 +0800331{
332 struct snd_soc_pcm_runtime *rtd = substream->private_data;
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000333 struct snd_soc_codec *codec = rtd->codec;
Mark Brownb2c812e2010-04-14 15:35:19 +0900334 struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec);
Cliff Caif692fce2009-06-02 00:18:54 -0400335
Karl Beldanfaab5a32008-11-20 15:39:27 +0100336 if (ssm2602->master_substream == substream)
337 ssm2602->master_substream = ssm2602->slave_substream;
338
339 ssm2602->slave_substream = NULL;
Cliff Caib7138212008-09-05 18:09:57 +0800340}
341
Lars-Peter Clausen2a438012011-05-08 09:24:45 -0700342
Cliff Caib7138212008-09-05 18:09:57 +0800343static int ssm2602_mute(struct snd_soc_dai *dai, int mute)
344{
345 struct snd_soc_codec *codec = dai->codec;
Cliff Cai93547e82011-03-27 17:22:57 -0400346 u16 mute_reg = snd_soc_read(codec, SSM2602_APDIGI) & ~APDIGI_ENABLE_DAC_MUTE;
Cliff Caib7138212008-09-05 18:09:57 +0800347 if (mute)
Cliff Cai93547e82011-03-27 17:22:57 -0400348 snd_soc_write(codec, SSM2602_APDIGI,
Cliff Caib7138212008-09-05 18:09:57 +0800349 mute_reg | APDIGI_ENABLE_DAC_MUTE);
350 else
Cliff Cai93547e82011-03-27 17:22:57 -0400351 snd_soc_write(codec, SSM2602_APDIGI, mute_reg);
Cliff Caib7138212008-09-05 18:09:57 +0800352 return 0;
353}
354
355static int ssm2602_set_dai_sysclk(struct snd_soc_dai *codec_dai,
356 int clk_id, unsigned int freq, int dir)
357{
358 struct snd_soc_codec *codec = codec_dai->codec;
Mark Brownb2c812e2010-04-14 15:35:19 +0900359 struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec);
Cliff Caib7138212008-09-05 18:09:57 +0800360 switch (freq) {
361 case 11289600:
362 case 12000000:
363 case 12288000:
364 case 16934400:
365 case 18432000:
366 ssm2602->sysclk = freq;
367 return 0;
368 }
369 return -EINVAL;
370}
371
372static int ssm2602_set_dai_fmt(struct snd_soc_dai *codec_dai,
373 unsigned int fmt)
374{
375 struct snd_soc_codec *codec = codec_dai->codec;
376 u16 iface = 0;
377
378 /* set master/slave audio interface */
379 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
380 case SND_SOC_DAIFMT_CBM_CFM:
381 iface |= 0x0040;
382 break;
383 case SND_SOC_DAIFMT_CBS_CFS:
384 break;
385 default:
386 return -EINVAL;
387 }
388
389 /* interface format */
390 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
391 case SND_SOC_DAIFMT_I2S:
392 iface |= 0x0002;
393 break;
394 case SND_SOC_DAIFMT_RIGHT_J:
395 break;
396 case SND_SOC_DAIFMT_LEFT_J:
397 iface |= 0x0001;
398 break;
399 case SND_SOC_DAIFMT_DSP_A:
Jarkko Nikulac6913482008-12-22 10:57:33 +0200400 iface |= 0x0013;
Cliff Caib7138212008-09-05 18:09:57 +0800401 break;
402 case SND_SOC_DAIFMT_DSP_B:
Jarkko Nikulac6913482008-12-22 10:57:33 +0200403 iface |= 0x0003;
Cliff Caib7138212008-09-05 18:09:57 +0800404 break;
405 default:
406 return -EINVAL;
407 }
408
409 /* clock inversion */
410 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
411 case SND_SOC_DAIFMT_NB_NF:
412 break;
413 case SND_SOC_DAIFMT_IB_IF:
414 iface |= 0x0090;
415 break;
416 case SND_SOC_DAIFMT_IB_NF:
417 iface |= 0x0080;
418 break;
419 case SND_SOC_DAIFMT_NB_IF:
420 iface |= 0x0010;
421 break;
422 default:
423 return -EINVAL;
424 }
425
426 /* set iface */
Cliff Cai93547e82011-03-27 17:22:57 -0400427 snd_soc_write(codec, SSM2602_IFACE, iface);
Cliff Caib7138212008-09-05 18:09:57 +0800428 return 0;
429}
430
431static int ssm2602_set_bias_level(struct snd_soc_codec *codec,
432 enum snd_soc_bias_level level)
433{
Cliff Cai93547e82011-03-27 17:22:57 -0400434 u16 reg = snd_soc_read(codec, SSM2602_PWR) & 0xff7f;
Cliff Caib7138212008-09-05 18:09:57 +0800435
436 switch (level) {
437 case SND_SOC_BIAS_ON:
438 /* vref/mid, osc on, dac unmute */
Cliff Cai93547e82011-03-27 17:22:57 -0400439 snd_soc_write(codec, SSM2602_PWR, reg);
Cliff Caib7138212008-09-05 18:09:57 +0800440 break;
441 case SND_SOC_BIAS_PREPARE:
442 break;
443 case SND_SOC_BIAS_STANDBY:
444 /* everything off except vref/vmid, */
Cliff Cai93547e82011-03-27 17:22:57 -0400445 snd_soc_write(codec, SSM2602_PWR, reg | PWR_CLK_OUT_PDN);
Cliff Caib7138212008-09-05 18:09:57 +0800446 break;
447 case SND_SOC_BIAS_OFF:
448 /* everything off, dac mute, inactive */
Cliff Cai93547e82011-03-27 17:22:57 -0400449 snd_soc_write(codec, SSM2602_PWR, 0xffff);
Cliff Caib7138212008-09-05 18:09:57 +0800450 break;
451
452 }
Liam Girdwoodce6120c2010-11-05 15:53:46 +0200453 codec->dapm.bias_level = level;
Cliff Caib7138212008-09-05 18:09:57 +0800454 return 0;
455}
456
Cliff Cai2552a712009-06-02 00:18:53 -0400457#define SSM2602_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_32000 |\
458 SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 |\
459 SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000)
Cliff Caib7138212008-09-05 18:09:57 +0800460
Karl Beldan5de27b62008-11-20 15:39:31 +0100461#define SSM2602_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
462 SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE)
463
Eric Miao6335d052009-03-03 09:41:00 +0800464static struct snd_soc_dai_ops ssm2602_dai_ops = {
465 .startup = ssm2602_startup,
Eric Miao6335d052009-03-03 09:41:00 +0800466 .hw_params = ssm2602_hw_params,
467 .shutdown = ssm2602_shutdown,
468 .digital_mute = ssm2602_mute,
469 .set_sysclk = ssm2602_set_dai_sysclk,
470 .set_fmt = ssm2602_set_dai_fmt,
471};
472
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000473static struct snd_soc_dai_driver ssm2602_dai = {
474 .name = "ssm2602-hifi",
Cliff Caib7138212008-09-05 18:09:57 +0800475 .playback = {
476 .stream_name = "Playback",
477 .channels_min = 2,
478 .channels_max = 2,
479 .rates = SSM2602_RATES,
Karl Beldan5de27b62008-11-20 15:39:31 +0100480 .formats = SSM2602_FORMATS,},
Cliff Caib7138212008-09-05 18:09:57 +0800481 .capture = {
482 .stream_name = "Capture",
483 .channels_min = 2,
484 .channels_max = 2,
485 .rates = SSM2602_RATES,
Karl Beldan5de27b62008-11-20 15:39:31 +0100486 .formats = SSM2602_FORMATS,},
Eric Miao6335d052009-03-03 09:41:00 +0800487 .ops = &ssm2602_dai_ops,
Cliff Caib7138212008-09-05 18:09:57 +0800488};
Cliff Caib7138212008-09-05 18:09:57 +0800489
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000490static int ssm2602_suspend(struct snd_soc_codec *codec, pm_message_t state)
Cliff Caib7138212008-09-05 18:09:57 +0800491{
Cliff Caib7138212008-09-05 18:09:57 +0800492 ssm2602_set_bias_level(codec, SND_SOC_BIAS_OFF);
493 return 0;
494}
495
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000496static int ssm2602_resume(struct snd_soc_codec *codec)
Cliff Caib7138212008-09-05 18:09:57 +0800497{
Cliff Cai93547e82011-03-27 17:22:57 -0400498 snd_soc_cache_sync(codec);
Cliff Caib7138212008-09-05 18:09:57 +0800499
Cliff Caib7138212008-09-05 18:09:57 +0800500 ssm2602_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
Cliff Cai93547e82011-03-27 17:22:57 -0400501
Cliff Caib7138212008-09-05 18:09:57 +0800502 return 0;
503}
504
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000505static int ssm2602_probe(struct snd_soc_codec *codec)
Cliff Caib7138212008-09-05 18:09:57 +0800506{
Lars-Peter Clausenb1f7b2b2011-05-08 09:24:43 -0700507 struct snd_soc_dapm_context *dapm = &codec->dapm;
508 int ret, reg;
509
510 reg = snd_soc_read(codec, SSM2602_LOUT1V);
511 snd_soc_write(codec, SSM2602_LOUT1V, reg | LOUT1V_LRHP_BOTH);
512 reg = snd_soc_read(codec, SSM2602_ROUT1V);
513 snd_soc_write(codec, SSM2602_ROUT1V, reg | ROUT1V_RLHP_BOTH);
514
515 ret = snd_soc_add_controls(codec, ssm2602_snd_controls,
516 ARRAY_SIZE(ssm2602_snd_controls));
517 if (ret)
518 return ret;
519
520 ret = snd_soc_dapm_new_controls(dapm, ssm2602_dapm_widgets,
521 ARRAY_SIZE(ssm2602_dapm_widgets));
522 if (ret)
523 return ret;
524
525 return snd_soc_dapm_add_routes(dapm, ssm2602_routes,
526 ARRAY_SIZE(ssm2602_routes));
527}
528
529static int ssm2604_probe(struct snd_soc_codec *codec)
530{
531 struct snd_soc_dapm_context *dapm = &codec->dapm;
532 int ret;
533
534 ret = snd_soc_dapm_new_controls(dapm, ssm2604_dapm_widgets,
535 ARRAY_SIZE(ssm2604_dapm_widgets));
536 if (ret)
537 return ret;
538
539 return snd_soc_dapm_add_routes(dapm, ssm2604_routes,
540 ARRAY_SIZE(ssm2604_routes));
541}
542
543static int ssm260x_probe(struct snd_soc_codec *codec)
544{
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000545 struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec);
Lars-Peter Clausenb1f7b2b2011-05-08 09:24:43 -0700546 int ret, reg;
Cliff Caib7138212008-09-05 18:09:57 +0800547
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000548 pr_info("ssm2602 Audio Codec %s", SSM2602_VERSION);
549
Cliff Cai93547e82011-03-27 17:22:57 -0400550 ret = snd_soc_codec_set_cache_io(codec, 7, 9, ssm2602->control_type);
551 if (ret < 0) {
552 dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret);
553 return ret;
554 }
Cliff Caib7138212008-09-05 18:09:57 +0800555
Cliff Cai93547e82011-03-27 17:22:57 -0400556 ret = ssm2602_reset(codec);
557 if (ret < 0) {
558 dev_err(codec->dev, "Failed to issue reset: %d\n", ret);
559 return ret;
560 }
Cliff Caib7138212008-09-05 18:09:57 +0800561
Cliff Caib7138212008-09-05 18:09:57 +0800562 /* set the update bits */
Cliff Cai93547e82011-03-27 17:22:57 -0400563 reg = snd_soc_read(codec, SSM2602_LINVOL);
564 snd_soc_write(codec, SSM2602_LINVOL, reg | LINVOL_LRIN_BOTH);
565 reg = snd_soc_read(codec, SSM2602_RINVOL);
566 snd_soc_write(codec, SSM2602_RINVOL, reg | RINVOL_RLIN_BOTH);
Cliff Caib7138212008-09-05 18:09:57 +0800567 /*select Line in as default input*/
Cliff Cai93547e82011-03-27 17:22:57 -0400568 snd_soc_write(codec, SSM2602_APANA, APANA_SELECT_DAC |
Cliff Caib7138212008-09-05 18:09:57 +0800569 APANA_ENABLE_MIC_BOOST);
Cliff Caib7138212008-09-05 18:09:57 +0800570
Lars-Peter Clausenb1f7b2b2011-05-08 09:24:43 -0700571 switch (ssm2602->type) {
572 case SSM2602:
573 ret = ssm2602_probe(codec);
574 break;
575 case SSM2604:
576 ret = ssm2604_probe(codec);
577 break;
578 }
Cliff Caib7138212008-09-05 18:09:57 +0800579
Lars-Peter Clausenb1f7b2b2011-05-08 09:24:43 -0700580 return ret;
Cliff Caib7138212008-09-05 18:09:57 +0800581}
582
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000583/* remove everything here */
584static int ssm2602_remove(struct snd_soc_codec *codec)
585{
586 ssm2602_set_bias_level(codec, SND_SOC_BIAS_OFF);
587 return 0;
588}
589
590static struct snd_soc_codec_driver soc_codec_dev_ssm2602 = {
Lars-Peter Clausenb1f7b2b2011-05-08 09:24:43 -0700591 .probe = ssm260x_probe,
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000592 .remove = ssm2602_remove,
593 .suspend = ssm2602_suspend,
594 .resume = ssm2602_resume,
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000595 .set_bias_level = ssm2602_set_bias_level,
Lars-Peter Clausen8fc63fe2011-05-05 16:59:14 +0200596 .reg_cache_size = ARRAY_SIZE(ssm2602_reg),
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000597 .reg_word_size = sizeof(u16),
598 .reg_cache_default = ssm2602_reg,
Lars-Peter Clausenb1f7b2b2011-05-08 09:24:43 -0700599
600 .controls = ssm260x_snd_controls,
601 .num_controls = ARRAY_SIZE(ssm260x_snd_controls),
602 .dapm_widgets = ssm260x_dapm_widgets,
603 .num_dapm_widgets = ARRAY_SIZE(ssm260x_dapm_widgets),
604 .dapm_routes = ssm260x_routes,
605 .num_dapm_routes = ARRAY_SIZE(ssm260x_routes),
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000606};
Cliff Caib7138212008-09-05 18:09:57 +0800607
Mike Frysingerb39e2852011-04-07 02:05:11 -0400608#if defined(CONFIG_SPI_MASTER)
609static int __devinit ssm2602_spi_probe(struct spi_device *spi)
610{
611 struct ssm2602_priv *ssm2602;
612 int ret;
613
614 ssm2602 = kzalloc(sizeof(struct ssm2602_priv), GFP_KERNEL);
615 if (ssm2602 == NULL)
616 return -ENOMEM;
617
618 spi_set_drvdata(spi, ssm2602);
619 ssm2602->control_type = SND_SOC_SPI;
Lars-Peter Clausenb1f7b2b2011-05-08 09:24:43 -0700620 ssm2602->type = SSM2602;
Mike Frysingerb39e2852011-04-07 02:05:11 -0400621
622 ret = snd_soc_register_codec(&spi->dev,
623 &soc_codec_dev_ssm2602, &ssm2602_dai, 1);
624 if (ret < 0)
625 kfree(ssm2602);
626 return ret;
627}
628
629static int __devexit ssm2602_spi_remove(struct spi_device *spi)
630{
631 snd_soc_unregister_codec(&spi->dev);
632 kfree(spi_get_drvdata(spi));
633 return 0;
634}
635
636static struct spi_driver ssm2602_spi_driver = {
637 .driver = {
638 .name = "ssm2602",
639 .owner = THIS_MODULE,
640 },
641 .probe = ssm2602_spi_probe,
642 .remove = __devexit_p(ssm2602_spi_remove),
643};
644#endif
645
Cliff Caib7138212008-09-05 18:09:57 +0800646#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
647/*
648 * ssm2602 2 wire address is determined by GPIO5
649 * state during powerup.
650 * low = 0x1a
651 * high = 0x1b
652 */
Lars-Peter Clausen04b89452011-05-05 16:59:12 +0200653static int __devinit ssm2602_i2c_probe(struct i2c_client *i2c,
Cliff Caib7138212008-09-05 18:09:57 +0800654 const struct i2c_device_id *id)
655{
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000656 struct ssm2602_priv *ssm2602;
Cliff Caib7138212008-09-05 18:09:57 +0800657 int ret;
658
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000659 ssm2602 = kzalloc(sizeof(struct ssm2602_priv), GFP_KERNEL);
660 if (ssm2602 == NULL)
661 return -ENOMEM;
Cliff Caib7138212008-09-05 18:09:57 +0800662
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000663 i2c_set_clientdata(i2c, ssm2602);
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000664 ssm2602->control_type = SND_SOC_I2C;
Lars-Peter Clausenb1f7b2b2011-05-08 09:24:43 -0700665 ssm2602->type = id->driver_data;
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000666
667 ret = snd_soc_register_codec(&i2c->dev,
668 &soc_codec_dev_ssm2602, &ssm2602_dai, 1);
Cliff Caib7138212008-09-05 18:09:57 +0800669 if (ret < 0)
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000670 kfree(ssm2602);
Cliff Caib7138212008-09-05 18:09:57 +0800671 return ret;
672}
673
Lars-Peter Clausen04b89452011-05-05 16:59:12 +0200674static int __devexit ssm2602_i2c_remove(struct i2c_client *client)
Cliff Caib7138212008-09-05 18:09:57 +0800675{
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000676 snd_soc_unregister_codec(&client->dev);
677 kfree(i2c_get_clientdata(client));
Cliff Caib7138212008-09-05 18:09:57 +0800678 return 0;
679}
680
681static const struct i2c_device_id ssm2602_i2c_id[] = {
Lars-Peter Clausenb1f7b2b2011-05-08 09:24:43 -0700682 { "ssm2602", SSM2602 },
Lars-Peter Clausen7dcf2762011-05-08 09:24:44 -0700683 { "ssm2603", SSM2602 },
Lars-Peter Clausenb1f7b2b2011-05-08 09:24:43 -0700684 { "ssm2604", SSM2604 },
Cliff Caib7138212008-09-05 18:09:57 +0800685 { }
686};
687MODULE_DEVICE_TABLE(i2c, ssm2602_i2c_id);
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000688
Cliff Caib7138212008-09-05 18:09:57 +0800689/* corgi i2c codec control layer */
690static struct i2c_driver ssm2602_i2c_driver = {
691 .driver = {
Mike Frysinger2a161012011-03-27 00:44:10 -0400692 .name = "ssm2602",
Cliff Caib7138212008-09-05 18:09:57 +0800693 .owner = THIS_MODULE,
694 },
695 .probe = ssm2602_i2c_probe,
Lars-Peter Clausen04b89452011-05-05 16:59:12 +0200696 .remove = __devexit_p(ssm2602_i2c_remove),
Cliff Caib7138212008-09-05 18:09:57 +0800697 .id_table = ssm2602_i2c_id,
698};
Cliff Caib7138212008-09-05 18:09:57 +0800699#endif
700
Cliff Caib7138212008-09-05 18:09:57 +0800701
Takashi Iwaic9b3a402008-12-10 07:47:22 +0100702static int __init ssm2602_modinit(void)
Mark Brown64089b82008-12-08 19:17:58 +0000703{
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000704 int ret = 0;
Mike Frysingerb39e2852011-04-07 02:05:11 -0400705
706#if defined(CONFIG_SPI_MASTER)
707 ret = spi_register_driver(&ssm2602_spi_driver);
708 if (ret)
709 return ret;
710#endif
711
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000712#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
713 ret = i2c_add_driver(&ssm2602_i2c_driver);
Mike Frysingerb39e2852011-04-07 02:05:11 -0400714 if (ret)
715 return ret;
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000716#endif
Mike Frysingerb39e2852011-04-07 02:05:11 -0400717
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000718 return ret;
Mark Brown64089b82008-12-08 19:17:58 +0000719}
720module_init(ssm2602_modinit);
721
722static void __exit ssm2602_exit(void)
723{
Mike Frysingerb39e2852011-04-07 02:05:11 -0400724#if defined(CONFIG_SPI_MASTER)
725 spi_unregister_driver(&ssm2602_spi_driver);
726#endif
727
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000728#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
729 i2c_del_driver(&ssm2602_i2c_driver);
730#endif
Mark Brown64089b82008-12-08 19:17:58 +0000731}
732module_exit(ssm2602_exit);
733
Lars-Peter Clausen7dcf2762011-05-08 09:24:44 -0700734MODULE_DESCRIPTION("ASoC SSM2602/SSM2603/SSM2604 driver");
Cliff Caib7138212008-09-05 18:09:57 +0800735MODULE_AUTHOR("Cliff Cai");
736MODULE_LICENSE("GPL");