Cliff Cai | a7e7f54 | 2008-09-05 18:21:41 +0800 | [diff] [blame] | 1 | /* |
| 2 | * File: sound/soc/blackfin/bf5xx-ssm2602.c |
| 3 | * Author: Cliff Cai <Cliff.Cai@analog.com> |
| 4 | * |
| 5 | * Created: Tue June 06 2008 |
| 6 | * Description: board 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/device.h> |
| 32 | |
| 33 | #include <sound/core.h> |
| 34 | #include <sound/pcm.h> |
| 35 | #include <sound/soc.h> |
Cliff Cai | a7e7f54 | 2008-09-05 18:21:41 +0800 | [diff] [blame] | 36 | #include <sound/pcm_params.h> |
| 37 | |
| 38 | #include <asm/dma.h> |
| 39 | #include <asm/portmux.h> |
| 40 | #include <linux/gpio.h> |
| 41 | #include "../codecs/ssm2602.h" |
| 42 | #include "bf5xx-sport.h" |
| 43 | #include "bf5xx-i2s-pcm.h" |
Cliff Cai | a7e7f54 | 2008-09-05 18:21:41 +0800 | [diff] [blame] | 44 | |
Mark Brown | 8750654 | 2008-11-18 20:50:34 +0000 | [diff] [blame] | 45 | static struct snd_soc_card bf5xx_ssm2602; |
Cliff Cai | a7e7f54 | 2008-09-05 18:21:41 +0800 | [diff] [blame] | 46 | |
Cliff Cai | a7e7f54 | 2008-09-05 18:21:41 +0800 | [diff] [blame] | 47 | static int bf5xx_ssm2602_hw_params(struct snd_pcm_substream *substream, |
| 48 | struct snd_pcm_hw_params *params) |
| 49 | { |
| 50 | struct snd_soc_pcm_runtime *rtd = substream->private_data; |
Liam Girdwood | f0fba2a | 2010-03-17 20:15:21 +0000 | [diff] [blame] | 51 | struct snd_soc_dai *codec_dai = rtd->codec_dai; |
Cliff Cai | a7e7f54 | 2008-09-05 18:21:41 +0800 | [diff] [blame] | 52 | unsigned int clk = 0; |
| 53 | int ret = 0; |
| 54 | |
| 55 | pr_debug("%s rate %d format %x\n", __func__, params_rate(params), |
| 56 | params_format(params)); |
| 57 | /* |
| 58 | * If you are using a crystal source which frequency is not 12MHz |
| 59 | * then modify the below case statement with frequency of the crystal. |
| 60 | * |
| 61 | * If you are using the SPORT to generate clocking then this is |
| 62 | * where to do it. |
| 63 | */ |
| 64 | |
| 65 | switch (params_rate(params)) { |
| 66 | case 8000: |
| 67 | case 16000: |
| 68 | case 48000: |
| 69 | case 96000: |
| 70 | case 11025: |
| 71 | case 22050: |
| 72 | case 44100: |
| 73 | clk = 12000000; |
| 74 | break; |
| 75 | } |
| 76 | |
Mark Brown | 9b0db7e | 2008-11-18 22:17:49 +0000 | [diff] [blame] | 77 | ret = snd_soc_dai_set_sysclk(codec_dai, SSM2602_SYSCLK, clk, |
Cliff Cai | a7e7f54 | 2008-09-05 18:21:41 +0800 | [diff] [blame] | 78 | SND_SOC_CLOCK_IN); |
| 79 | if (ret < 0) |
| 80 | return ret; |
| 81 | |
| 82 | return 0; |
| 83 | } |
| 84 | |
| 85 | static struct snd_soc_ops bf5xx_ssm2602_ops = { |
Cliff Cai | a7e7f54 | 2008-09-05 18:21:41 +0800 | [diff] [blame] | 86 | .hw_params = bf5xx_ssm2602_hw_params, |
| 87 | }; |
| 88 | |
Lars-Peter Clausen | 980b0bc | 2012-02-01 19:24:21 +0100 | [diff] [blame] | 89 | /* CODEC is master for BCLK and LRC in this configuration. */ |
| 90 | #define BF5XX_SSM2602_DAIFMT (SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | \ |
| 91 | SND_SOC_DAIFMT_CBM_CFM) |
| 92 | |
Barry Song | 2c66cb9 | 2011-03-28 01:45:10 -0400 | [diff] [blame] | 93 | static struct snd_soc_dai_link bf5xx_ssm2602_dai[] = { |
| 94 | { |
| 95 | .name = "ssm2602", |
| 96 | .stream_name = "SSM2602", |
| 97 | .cpu_dai_name = "bfin-i2s.0", |
| 98 | .codec_dai_name = "ssm2602-hifi", |
| 99 | .platform_name = "bfin-i2s-pcm-audio", |
| 100 | .codec_name = "ssm2602.0-001b", |
| 101 | .ops = &bf5xx_ssm2602_ops, |
| 102 | }, |
| 103 | { |
| 104 | .name = "ssm2602", |
| 105 | .stream_name = "SSM2602", |
| 106 | .cpu_dai_name = "bfin-i2s.1", |
| 107 | .codec_dai_name = "ssm2602-hifi", |
| 108 | .platform_name = "bfin-i2s-pcm-audio", |
| 109 | .codec_name = "ssm2602.0-001b", |
| 110 | .ops = &bf5xx_ssm2602_ops, |
| 111 | }, |
Cliff Cai | a7e7f54 | 2008-09-05 18:21:41 +0800 | [diff] [blame] | 112 | }; |
| 113 | |
Mark Brown | 8750654 | 2008-11-18 20:50:34 +0000 | [diff] [blame] | 114 | static struct snd_soc_card bf5xx_ssm2602 = { |
Mike Frysinger | bfe4ee0 | 2011-03-28 01:45:09 -0400 | [diff] [blame] | 115 | .name = "bfin-ssm2602", |
Axel Lin | 30e4953 | 2011-12-22 21:17:22 +0800 | [diff] [blame] | 116 | .owner = THIS_MODULE, |
Barry Song | 2c66cb9 | 2011-03-28 01:45:10 -0400 | [diff] [blame] | 117 | .dai_link = &bf5xx_ssm2602_dai[CONFIG_SND_BF5XX_SPORT_NUM], |
Cliff Cai | a7e7f54 | 2008-09-05 18:21:41 +0800 | [diff] [blame] | 118 | .num_links = 1, |
| 119 | }; |
| 120 | |
Barry Song | f274143 | 2009-06-20 11:29:56 -0400 | [diff] [blame] | 121 | static struct platform_device *bf5xx_ssm2602_snd_device; |
Cliff Cai | a7e7f54 | 2008-09-05 18:21:41 +0800 | [diff] [blame] | 122 | |
| 123 | static int __init bf5xx_ssm2602_init(void) |
| 124 | { |
| 125 | int ret; |
| 126 | |
| 127 | pr_debug("%s enter\n", __func__); |
Barry Song | f274143 | 2009-06-20 11:29:56 -0400 | [diff] [blame] | 128 | bf5xx_ssm2602_snd_device = platform_device_alloc("soc-audio", -1); |
| 129 | if (!bf5xx_ssm2602_snd_device) |
Cliff Cai | a7e7f54 | 2008-09-05 18:21:41 +0800 | [diff] [blame] | 130 | return -ENOMEM; |
| 131 | |
Liam Girdwood | f0fba2a | 2010-03-17 20:15:21 +0000 | [diff] [blame] | 132 | platform_set_drvdata(bf5xx_ssm2602_snd_device, &bf5xx_ssm2602); |
Barry Song | f274143 | 2009-06-20 11:29:56 -0400 | [diff] [blame] | 133 | ret = platform_device_add(bf5xx_ssm2602_snd_device); |
Cliff Cai | a7e7f54 | 2008-09-05 18:21:41 +0800 | [diff] [blame] | 134 | |
| 135 | if (ret) |
Barry Song | f274143 | 2009-06-20 11:29:56 -0400 | [diff] [blame] | 136 | platform_device_put(bf5xx_ssm2602_snd_device); |
Cliff Cai | a7e7f54 | 2008-09-05 18:21:41 +0800 | [diff] [blame] | 137 | |
| 138 | return ret; |
| 139 | } |
| 140 | |
| 141 | static void __exit bf5xx_ssm2602_exit(void) |
| 142 | { |
| 143 | pr_debug("%s enter\n", __func__); |
Barry Song | f274143 | 2009-06-20 11:29:56 -0400 | [diff] [blame] | 144 | platform_device_unregister(bf5xx_ssm2602_snd_device); |
Cliff Cai | a7e7f54 | 2008-09-05 18:21:41 +0800 | [diff] [blame] | 145 | } |
| 146 | |
| 147 | module_init(bf5xx_ssm2602_init); |
| 148 | module_exit(bf5xx_ssm2602_exit); |
| 149 | |
| 150 | /* Module information */ |
| 151 | MODULE_AUTHOR("Cliff Cai"); |
| 152 | MODULE_DESCRIPTION("ALSA SoC SSM2602 BF527-EZKIT"); |
| 153 | MODULE_LICENSE("GPL"); |
| 154 | |