2c66cb99d1
Now that we have multi-component support, take the time to unify the SPORT implementations a bit and make the setup dynamic. This kills off the global sport_handle which was shared across all the Blackfin machine drivers. The pin management aspect is off loaded to platform resources, and now multiple SPORTs can be instantiated simultaneously. Signed-off-by: Barry Song <barry.song@analog.com> Signed-off-by: Scott Jiang <scott.jiang@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org> Acked-by: Liam Girdwood <lrg@ti.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
158 lines
4.1 KiB
C
158 lines
4.1 KiB
C
/*
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* File: sound/soc/blackfin/bf5xx-ad193x.c
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* Author: Barry Song <Barry.Song@analog.com>
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*
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* Created: Thur June 4 2009
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* Description: Board driver for ad193x sound chip
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*
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* Bugs: Enter bugs at http://blackfin.uclinux.org/
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, see the file COPYING, or write
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* to the Free Software Foundation, Inc.,
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* 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include <linux/module.h>
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#include <linux/moduleparam.h>
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#include <linux/device.h>
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#include <sound/core.h>
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#include <sound/pcm.h>
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#include <sound/soc.h>
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#include <sound/pcm_params.h>
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#include <asm/blackfin.h>
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#include <asm/cacheflush.h>
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#include <asm/irq.h>
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#include <asm/dma.h>
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#include <asm/portmux.h>
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#include "../codecs/ad193x.h"
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#include "bf5xx-tdm-pcm.h"
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#include "bf5xx-tdm.h"
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static struct snd_soc_card bf5xx_ad193x;
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static int bf5xx_ad193x_hw_params(struct snd_pcm_substream *substream,
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struct snd_pcm_hw_params *params)
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{
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struct snd_soc_pcm_runtime *rtd = substream->private_data;
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struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
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struct snd_soc_dai *codec_dai = rtd->codec_dai;
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unsigned int clk = 0;
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unsigned int channel_map[] = {0, 1, 2, 3, 4, 5, 6, 7};
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int ret = 0;
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switch (params_rate(params)) {
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case 48000:
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clk = 12288000;
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break;
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}
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/* set cpu DAI configuration */
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ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_DSP_A |
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SND_SOC_DAIFMT_IB_IF | SND_SOC_DAIFMT_CBM_CFM);
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if (ret < 0)
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return ret;
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/* set codec DAI configuration */
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ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_DSP_A |
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SND_SOC_DAIFMT_IB_IF | SND_SOC_DAIFMT_CBM_CFM);
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if (ret < 0)
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return ret;
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/* set the codec system clock for DAC and ADC */
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ret = snd_soc_dai_set_sysclk(codec_dai, 0, clk,
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SND_SOC_CLOCK_IN);
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if (ret < 0)
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return ret;
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/* set codec DAI slots, 8 channels, all channels are enabled */
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ret = snd_soc_dai_set_tdm_slot(codec_dai, 0xFF, 0xFF, 8, 32);
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if (ret < 0)
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return ret;
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/* set cpu DAI channel mapping */
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ret = snd_soc_dai_set_channel_map(cpu_dai, ARRAY_SIZE(channel_map),
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channel_map, ARRAY_SIZE(channel_map), channel_map);
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if (ret < 0)
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return ret;
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return 0;
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}
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static struct snd_soc_ops bf5xx_ad193x_ops = {
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.hw_params = bf5xx_ad193x_hw_params,
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};
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static struct snd_soc_dai_link bf5xx_ad193x_dai[] = {
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{
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.name = "ad193x",
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.stream_name = "AD193X",
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.cpu_dai_name = "bfin-tdm.0",
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.codec_dai_name ="ad193x-hifi",
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.platform_name = "bfin-tdm-pcm-audio",
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.codec_name = "ad193x.5",
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.ops = &bf5xx_ad193x_ops,
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},
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{
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.name = "ad193x",
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.stream_name = "AD193X",
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.cpu_dai_name = "bfin-tdm.1",
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.codec_dai_name ="ad193x-hifi",
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.platform_name = "bfin-tdm-pcm-audio",
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.codec_name = "ad193x.5",
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.ops = &bf5xx_ad193x_ops,
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},
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};
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static struct snd_soc_card bf5xx_ad193x = {
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.name = "bfin-ad193x",
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.dai_link = &bf5xx_ad193x_dai[CONFIG_SND_BF5XX_SPORT_NUM],
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.num_links = 1,
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};
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static struct platform_device *bfxx_ad193x_snd_device;
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static int __init bf5xx_ad193x_init(void)
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{
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int ret;
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bfxx_ad193x_snd_device = platform_device_alloc("soc-audio", -1);
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if (!bfxx_ad193x_snd_device)
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return -ENOMEM;
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platform_set_drvdata(bfxx_ad193x_snd_device, &bf5xx_ad193x);
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ret = platform_device_add(bfxx_ad193x_snd_device);
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if (ret)
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platform_device_put(bfxx_ad193x_snd_device);
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return ret;
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}
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static void __exit bf5xx_ad193x_exit(void)
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{
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platform_device_unregister(bfxx_ad193x_snd_device);
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}
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module_init(bf5xx_ad193x_init);
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module_exit(bf5xx_ad193x_exit);
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/* Module information */
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MODULE_AUTHOR("Barry Song");
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MODULE_DESCRIPTION("ALSA SoC AD193X board driver");
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MODULE_LICENSE("GPL");
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