| /* |
| * File: sound/soc/blackfin/bf5xx-ad193x.c |
| * Author: Barry Song <Barry.Song@analog.com> |
| * |
| * Created: Thur June 4 2009 |
| * Description: Board driver for ad193x sound chip |
| * |
| * Bugs: Enter bugs at http://blackfin.uclinux.org/ |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; either version 2 of the License, or |
| * (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, see the file COPYING, or write |
| * to the Free Software Foundation, Inc., |
| * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| */ |
| |
| #include <linux/module.h> |
| #include <linux/moduleparam.h> |
| #include <linux/device.h> |
| #include <sound/core.h> |
| #include <sound/pcm.h> |
| #include <sound/soc.h> |
| #include <sound/soc-dapm.h> |
| #include <sound/pcm_params.h> |
| |
| #include <asm/blackfin.h> |
| #include <asm/cacheflush.h> |
| #include <asm/irq.h> |
| #include <asm/dma.h> |
| #include <asm/portmux.h> |
| |
| #include "../codecs/ad193x.h" |
| #include "bf5xx-sport.h" |
| |
| #include "bf5xx-tdm-pcm.h" |
| #include "bf5xx-tdm.h" |
| |
| static struct snd_soc_card bf5xx_ad193x; |
| |
| static int bf5xx_ad193x_startup(struct snd_pcm_substream *substream) |
| { |
| struct snd_soc_pcm_runtime *rtd = substream->private_data; |
| struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
| |
| snd_soc_dai_set_drvdata(cpu_dai, sport_handle); |
| return 0; |
| } |
| |
| static int bf5xx_ad193x_hw_params(struct snd_pcm_substream *substream, |
| struct snd_pcm_hw_params *params) |
| { |
| struct snd_soc_pcm_runtime *rtd = substream->private_data; |
| struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
| struct snd_soc_dai *codec_dai = rtd->codec_dai; |
| unsigned int channel_map[] = {0, 1, 2, 3, 4, 5, 6, 7}; |
| int ret = 0; |
| /* set cpu DAI configuration */ |
| ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_DSP_A | |
| SND_SOC_DAIFMT_IB_IF | SND_SOC_DAIFMT_CBM_CFM); |
| if (ret < 0) |
| return ret; |
| |
| /* set codec DAI configuration */ |
| ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_DSP_A | |
| SND_SOC_DAIFMT_IB_IF | SND_SOC_DAIFMT_CBM_CFM); |
| if (ret < 0) |
| return ret; |
| |
| /* set codec DAI slots, 8 channels, all channels are enabled */ |
| ret = snd_soc_dai_set_tdm_slot(codec_dai, 0xFF, 0xFF, 8, 32); |
| if (ret < 0) |
| return ret; |
| |
| /* set cpu DAI channel mapping */ |
| ret = snd_soc_dai_set_channel_map(cpu_dai, ARRAY_SIZE(channel_map), |
| channel_map, ARRAY_SIZE(channel_map), channel_map); |
| if (ret < 0) |
| return ret; |
| |
| return 0; |
| } |
| |
| static struct snd_soc_ops bf5xx_ad193x_ops = { |
| .startup = bf5xx_ad193x_startup, |
| .hw_params = bf5xx_ad193x_hw_params, |
| }; |
| |
| static struct snd_soc_dai_link bf5xx_ad193x_dai = { |
| .name = "ad193x", |
| .stream_name = "AD193X", |
| .cpu_dai_name = "bf5xx-tdm", |
| .codec_dai_name ="ad193x-hifi", |
| .platform_name = "bf5xx-tdm-pcm-audio", |
| .codec_name = "ad193x-codec.5", |
| .ops = &bf5xx_ad193x_ops, |
| }; |
| |
| static struct snd_soc_card bf5xx_ad193x = { |
| .name = "bf5xx_ad193x", |
| .dai_link = &bf5xx_ad193x_dai, |
| .num_links = 1, |
| }; |
| |
| static struct platform_device *bfxx_ad193x_snd_device; |
| |
| static int __init bf5xx_ad193x_init(void) |
| { |
| int ret; |
| |
| bfxx_ad193x_snd_device = platform_device_alloc("soc-audio", -1); |
| if (!bfxx_ad193x_snd_device) |
| return -ENOMEM; |
| |
| platform_set_drvdata(bfxx_ad193x_snd_device, &bf5xx_ad193x); |
| ret = platform_device_add(bfxx_ad193x_snd_device); |
| |
| if (ret) |
| platform_device_put(bfxx_ad193x_snd_device); |
| |
| return ret; |
| } |
| |
| static void __exit bf5xx_ad193x_exit(void) |
| { |
| platform_device_unregister(bfxx_ad193x_snd_device); |
| } |
| |
| module_init(bf5xx_ad193x_init); |
| module_exit(bf5xx_ad193x_exit); |
| |
| /* Module information */ |
| MODULE_AUTHOR("Barry Song"); |
| MODULE_DESCRIPTION("ALSA SoC AD193X board driver"); |
| MODULE_LICENSE("GPL"); |
| |