Barry Song | c8489c3 | 2009-07-23 02:10:34 +0800 | [diff] [blame] | 1 | /* |
Barry Song | 698c375 | 2010-03-19 11:18:40 +0800 | [diff] [blame] | 2 | * File: sound/soc/blackfin/bf5xx-ad193x.c |
Barry Song | c8489c3 | 2009-07-23 02:10:34 +0800 | [diff] [blame] | 3 | * Author: Barry Song <Barry.Song@analog.com> |
| 4 | * |
| 5 | * Created: Thur June 4 2009 |
Barry Song | 698c375 | 2010-03-19 11:18:40 +0800 | [diff] [blame] | 6 | * Description: Board driver for ad193x sound chip |
Barry Song | c8489c3 | 2009-07-23 02:10:34 +0800 | [diff] [blame] | 7 | * |
| 8 | * Bugs: Enter bugs at http://blackfin.uclinux.org/ |
| 9 | * |
| 10 | * This program is free software; you can redistribute it and/or modify |
| 11 | * it under the terms of the GNU General Public License as published by |
| 12 | * the Free Software Foundation; either version 2 of the License, or |
| 13 | * (at your option) any later version. |
| 14 | * |
| 15 | * This program is distributed in the hope that it will be useful, |
| 16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 18 | * GNU General Public License for more details. |
| 19 | * |
| 20 | * You should have received a copy of the GNU General Public License |
| 21 | * along with this program; if not, see the file COPYING, or write |
| 22 | * to the Free Software Foundation, Inc., |
| 23 | * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| 24 | */ |
| 25 | |
| 26 | #include <linux/module.h> |
| 27 | #include <linux/moduleparam.h> |
| 28 | #include <linux/device.h> |
| 29 | #include <sound/core.h> |
| 30 | #include <sound/pcm.h> |
| 31 | #include <sound/soc.h> |
Barry Song | c8489c3 | 2009-07-23 02:10:34 +0800 | [diff] [blame] | 32 | #include <sound/pcm_params.h> |
| 33 | |
| 34 | #include <asm/blackfin.h> |
| 35 | #include <asm/cacheflush.h> |
| 36 | #include <asm/irq.h> |
| 37 | #include <asm/dma.h> |
| 38 | #include <asm/portmux.h> |
| 39 | |
Barry Song | 698c375 | 2010-03-19 11:18:40 +0800 | [diff] [blame] | 40 | #include "../codecs/ad193x.h" |
Barry Song | c8489c3 | 2009-07-23 02:10:34 +0800 | [diff] [blame] | 41 | |
| 42 | #include "bf5xx-tdm-pcm.h" |
| 43 | #include "bf5xx-tdm.h" |
| 44 | |
Barry Song | 698c375 | 2010-03-19 11:18:40 +0800 | [diff] [blame] | 45 | static struct snd_soc_card bf5xx_ad193x; |
Barry Song | c8489c3 | 2009-07-23 02:10:34 +0800 | [diff] [blame] | 46 | |
Barry Song | 698c375 | 2010-03-19 11:18:40 +0800 | [diff] [blame] | 47 | static int bf5xx_ad193x_hw_params(struct snd_pcm_substream *substream, |
Barry Song | c8489c3 | 2009-07-23 02:10:34 +0800 | [diff] [blame] | 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 *cpu_dai = rtd->cpu_dai; |
| 52 | struct snd_soc_dai *codec_dai = rtd->codec_dai; |
Scott Jiang | f04cd9c | 2011-03-27 05:33:04 -0400 | [diff] [blame] | 53 | unsigned int clk = 0; |
Barry Song | 08db48f | 2009-09-15 11:24:52 +0800 | [diff] [blame] | 54 | unsigned int channel_map[] = {0, 1, 2, 3, 4, 5, 6, 7}; |
Barry Song | c8489c3 | 2009-07-23 02:10:34 +0800 | [diff] [blame] | 55 | int ret = 0; |
Scott Jiang | f04cd9c | 2011-03-27 05:33:04 -0400 | [diff] [blame] | 56 | |
| 57 | switch (params_rate(params)) { |
| 58 | case 48000: |
Scott Jiang | 25ea524 | 2011-08-12 18:04:12 -0400 | [diff] [blame] | 59 | clk = 24576000; |
Scott Jiang | f04cd9c | 2011-03-27 05:33:04 -0400 | [diff] [blame] | 60 | break; |
| 61 | } |
| 62 | |
Barry Song | c8489c3 | 2009-07-23 02:10:34 +0800 | [diff] [blame] | 63 | /* set cpu DAI configuration */ |
| 64 | ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_DSP_A | |
| 65 | SND_SOC_DAIFMT_IB_IF | SND_SOC_DAIFMT_CBM_CFM); |
| 66 | if (ret < 0) |
| 67 | return ret; |
| 68 | |
| 69 | /* set codec DAI configuration */ |
| 70 | ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_DSP_A | |
| 71 | SND_SOC_DAIFMT_IB_IF | SND_SOC_DAIFMT_CBM_CFM); |
| 72 | if (ret < 0) |
| 73 | return ret; |
| 74 | |
Scott Jiang | f04cd9c | 2011-03-27 05:33:04 -0400 | [diff] [blame] | 75 | /* set the codec system clock for DAC and ADC */ |
| 76 | ret = snd_soc_dai_set_sysclk(codec_dai, 0, clk, |
| 77 | SND_SOC_CLOCK_IN); |
| 78 | if (ret < 0) |
| 79 | return ret; |
| 80 | |
Barry Song | c8489c3 | 2009-07-23 02:10:34 +0800 | [diff] [blame] | 81 | /* set codec DAI slots, 8 channels, all channels are enabled */ |
Barry Song | 08db48f | 2009-09-15 11:24:52 +0800 | [diff] [blame] | 82 | ret = snd_soc_dai_set_tdm_slot(codec_dai, 0xFF, 0xFF, 8, 32); |
| 83 | if (ret < 0) |
| 84 | return ret; |
| 85 | |
| 86 | /* set cpu DAI channel mapping */ |
| 87 | ret = snd_soc_dai_set_channel_map(cpu_dai, ARRAY_SIZE(channel_map), |
| 88 | channel_map, ARRAY_SIZE(channel_map), channel_map); |
Barry Song | c8489c3 | 2009-07-23 02:10:34 +0800 | [diff] [blame] | 89 | if (ret < 0) |
| 90 | return ret; |
| 91 | |
| 92 | return 0; |
| 93 | } |
| 94 | |
Barry Song | 698c375 | 2010-03-19 11:18:40 +0800 | [diff] [blame] | 95 | static struct snd_soc_ops bf5xx_ad193x_ops = { |
Barry Song | 698c375 | 2010-03-19 11:18:40 +0800 | [diff] [blame] | 96 | .hw_params = bf5xx_ad193x_hw_params, |
Barry Song | c8489c3 | 2009-07-23 02:10:34 +0800 | [diff] [blame] | 97 | }; |
| 98 | |
Barry Song | 2c66cb9 | 2011-03-28 01:45:10 -0400 | [diff] [blame] | 99 | static struct snd_soc_dai_link bf5xx_ad193x_dai[] = { |
| 100 | { |
| 101 | .name = "ad193x", |
| 102 | .stream_name = "AD193X", |
| 103 | .cpu_dai_name = "bfin-tdm.0", |
| 104 | .codec_dai_name ="ad193x-hifi", |
| 105 | .platform_name = "bfin-tdm-pcm-audio", |
Lars-Peter Clausen | c5d2e65 | 2011-09-05 13:49:57 +0200 | [diff] [blame] | 106 | .codec_name = "spi0.5", |
Barry Song | 2c66cb9 | 2011-03-28 01:45:10 -0400 | [diff] [blame] | 107 | .ops = &bf5xx_ad193x_ops, |
| 108 | }, |
| 109 | { |
| 110 | .name = "ad193x", |
| 111 | .stream_name = "AD193X", |
| 112 | .cpu_dai_name = "bfin-tdm.1", |
| 113 | .codec_dai_name ="ad193x-hifi", |
| 114 | .platform_name = "bfin-tdm-pcm-audio", |
Lars-Peter Clausen | c5d2e65 | 2011-09-05 13:49:57 +0200 | [diff] [blame] | 115 | .codec_name = "spi0.5", |
Barry Song | 2c66cb9 | 2011-03-28 01:45:10 -0400 | [diff] [blame] | 116 | .ops = &bf5xx_ad193x_ops, |
| 117 | }, |
Barry Song | c8489c3 | 2009-07-23 02:10:34 +0800 | [diff] [blame] | 118 | }; |
| 119 | |
Barry Song | 698c375 | 2010-03-19 11:18:40 +0800 | [diff] [blame] | 120 | static struct snd_soc_card bf5xx_ad193x = { |
Mike Frysinger | bfe4ee0 | 2011-03-28 01:45:09 -0400 | [diff] [blame] | 121 | .name = "bfin-ad193x", |
Barry Song | 2c66cb9 | 2011-03-28 01:45:10 -0400 | [diff] [blame] | 122 | .dai_link = &bf5xx_ad193x_dai[CONFIG_SND_BF5XX_SPORT_NUM], |
Barry Song | c8489c3 | 2009-07-23 02:10:34 +0800 | [diff] [blame] | 123 | .num_links = 1, |
| 124 | }; |
| 125 | |
Barry Song | 698c375 | 2010-03-19 11:18:40 +0800 | [diff] [blame] | 126 | static struct platform_device *bfxx_ad193x_snd_device; |
Barry Song | c8489c3 | 2009-07-23 02:10:34 +0800 | [diff] [blame] | 127 | |
Barry Song | 698c375 | 2010-03-19 11:18:40 +0800 | [diff] [blame] | 128 | static int __init bf5xx_ad193x_init(void) |
Barry Song | c8489c3 | 2009-07-23 02:10:34 +0800 | [diff] [blame] | 129 | { |
| 130 | int ret; |
| 131 | |
Barry Song | 698c375 | 2010-03-19 11:18:40 +0800 | [diff] [blame] | 132 | bfxx_ad193x_snd_device = platform_device_alloc("soc-audio", -1); |
| 133 | if (!bfxx_ad193x_snd_device) |
Barry Song | c8489c3 | 2009-07-23 02:10:34 +0800 | [diff] [blame] | 134 | return -ENOMEM; |
| 135 | |
Liam Girdwood | f0fba2a | 2010-03-17 20:15:21 +0000 | [diff] [blame] | 136 | platform_set_drvdata(bfxx_ad193x_snd_device, &bf5xx_ad193x); |
Barry Song | 698c375 | 2010-03-19 11:18:40 +0800 | [diff] [blame] | 137 | ret = platform_device_add(bfxx_ad193x_snd_device); |
Barry Song | c8489c3 | 2009-07-23 02:10:34 +0800 | [diff] [blame] | 138 | |
| 139 | if (ret) |
Barry Song | 698c375 | 2010-03-19 11:18:40 +0800 | [diff] [blame] | 140 | platform_device_put(bfxx_ad193x_snd_device); |
Barry Song | c8489c3 | 2009-07-23 02:10:34 +0800 | [diff] [blame] | 141 | |
| 142 | return ret; |
| 143 | } |
| 144 | |
Barry Song | 698c375 | 2010-03-19 11:18:40 +0800 | [diff] [blame] | 145 | static void __exit bf5xx_ad193x_exit(void) |
Barry Song | c8489c3 | 2009-07-23 02:10:34 +0800 | [diff] [blame] | 146 | { |
Barry Song | 698c375 | 2010-03-19 11:18:40 +0800 | [diff] [blame] | 147 | platform_device_unregister(bfxx_ad193x_snd_device); |
Barry Song | c8489c3 | 2009-07-23 02:10:34 +0800 | [diff] [blame] | 148 | } |
| 149 | |
Barry Song | 698c375 | 2010-03-19 11:18:40 +0800 | [diff] [blame] | 150 | module_init(bf5xx_ad193x_init); |
| 151 | module_exit(bf5xx_ad193x_exit); |
Barry Song | c8489c3 | 2009-07-23 02:10:34 +0800 | [diff] [blame] | 152 | |
| 153 | /* Module information */ |
| 154 | MODULE_AUTHOR("Barry Song"); |
Barry Song | 698c375 | 2010-03-19 11:18:40 +0800 | [diff] [blame] | 155 | MODULE_DESCRIPTION("ALSA SoC AD193X board driver"); |
Barry Song | c8489c3 | 2009-07-23 02:10:34 +0800 | [diff] [blame] | 156 | MODULE_LICENSE("GPL"); |
| 157 | |