diff options
Diffstat (limited to 'sound/soc/blackfin/bf6xx-i2s.c')
| -rw-r--r-- | sound/soc/blackfin/bf6xx-i2s.c | 239 |
1 files changed, 0 insertions, 239 deletions
diff --git a/sound/soc/blackfin/bf6xx-i2s.c b/sound/soc/blackfin/bf6xx-i2s.c deleted file mode 100644 index 819cff149a25..000000000000 --- a/sound/soc/blackfin/bf6xx-i2s.c +++ /dev/null @@ -1,239 +0,0 @@ -/* - * bf6xx-i2s.c - Analog Devices BF6XX i2s interface driver - * - * Copyright (c) 2012 Analog Devices Inc. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * 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, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - */ - -#include <linux/device.h> -#include <linux/init.h> -#include <linux/module.h> -#include <linux/platform_device.h> -#include <sound/pcm.h> -#include <sound/pcm_params.h> -#include <sound/soc.h> -#include <sound/soc-dai.h> - -#include "bf6xx-sport.h" - -struct sport_params param; - -static int bfin_i2s_set_dai_fmt(struct snd_soc_dai *cpu_dai, - unsigned int fmt) -{ - struct sport_device *sport = snd_soc_dai_get_drvdata(cpu_dai); - struct device *dev = &sport->pdev->dev; - int ret = 0; - - param.spctl &= ~(SPORT_CTL_OPMODE | SPORT_CTL_CKRE | SPORT_CTL_FSR - | SPORT_CTL_LFS | SPORT_CTL_LAFS); - switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { - case SND_SOC_DAIFMT_I2S: - param.spctl |= SPORT_CTL_OPMODE | SPORT_CTL_CKRE - | SPORT_CTL_LFS; - break; - case SND_SOC_DAIFMT_DSP_A: - param.spctl |= SPORT_CTL_FSR; - break; - case SND_SOC_DAIFMT_LEFT_J: - param.spctl |= SPORT_CTL_OPMODE | SPORT_CTL_LFS - | SPORT_CTL_LAFS; - break; - default: - dev_err(dev, "%s: Unknown DAI format type\n", __func__); - ret = -EINVAL; - break; - } - - param.spctl &= ~(SPORT_CTL_ICLK | SPORT_CTL_IFS); - switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { - case SND_SOC_DAIFMT_CBM_CFM: - break; - case SND_SOC_DAIFMT_CBS_CFS: - case SND_SOC_DAIFMT_CBM_CFS: - case SND_SOC_DAIFMT_CBS_CFM: - ret = -EINVAL; - break; - default: - dev_err(dev, "%s: Unknown DAI master type\n", __func__); - ret = -EINVAL; - break; - } - - return ret; -} - -static int bfin_i2s_hw_params(struct snd_pcm_substream *substream, - struct snd_pcm_hw_params *params, - struct snd_soc_dai *dai) -{ - struct sport_device *sport = snd_soc_dai_get_drvdata(dai); - struct device *dev = &sport->pdev->dev; - int ret = 0; - - param.spctl &= ~SPORT_CTL_SLEN; - switch (params_format(params)) { - case SNDRV_PCM_FORMAT_S8: - param.spctl |= 0x70; - sport->wdsize = 1; - break; - case SNDRV_PCM_FORMAT_S16_LE: - param.spctl |= 0xf0; - sport->wdsize = 2; - break; - case SNDRV_PCM_FORMAT_S24_LE: - param.spctl |= 0x170; - sport->wdsize = 3; - break; - case SNDRV_PCM_FORMAT_S32_LE: - param.spctl |= 0x1f0; - sport->wdsize = 4; - break; - } - - if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { - ret = sport_set_tx_params(sport, ¶m); - if (ret) { - dev_err(dev, "SPORT tx is busy!\n"); - return ret; - } - } else { - ret = sport_set_rx_params(sport, ¶m); - if (ret) { - dev_err(dev, "SPORT rx is busy!\n"); - return ret; - } - } - return 0; -} - -#ifdef CONFIG_PM -static int bfin_i2s_suspend(struct snd_soc_dai *dai) -{ - struct sport_device *sport = snd_soc_dai_get_drvdata(dai); - - if (dai->capture_active) - sport_rx_stop(sport); - if (dai->playback_active) - sport_tx_stop(sport); - return 0; -} - -static int bfin_i2s_resume(struct snd_soc_dai *dai) -{ - struct sport_device *sport = snd_soc_dai_get_drvdata(dai); - struct device *dev = &sport->pdev->dev; - int ret; - - ret = sport_set_tx_params(sport, ¶m); - if (ret) { - dev_err(dev, "SPORT tx is busy!\n"); - return ret; - } - ret = sport_set_rx_params(sport, ¶m); - if (ret) { - dev_err(dev, "SPORT rx is busy!\n"); - return ret; - } - - return 0; -} - -#else -#define bfin_i2s_suspend NULL -#define bfin_i2s_resume NULL -#endif - -#define BFIN_I2S_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\ - SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 | \ - SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 | \ - SNDRV_PCM_RATE_96000) - -#define BFIN_I2S_FORMATS (SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_S16_LE | \ - SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE) - -static const struct snd_soc_dai_ops bfin_i2s_dai_ops = { - .hw_params = bfin_i2s_hw_params, - .set_fmt = bfin_i2s_set_dai_fmt, -}; - -static struct snd_soc_dai_driver bfin_i2s_dai = { - .suspend = bfin_i2s_suspend, - .resume = bfin_i2s_resume, - .playback = { - .channels_min = 1, - .channels_max = 2, - .rates = BFIN_I2S_RATES, - .formats = BFIN_I2S_FORMATS, - }, - .capture = { - .channels_min = 1, - .channels_max = 2, - .rates = BFIN_I2S_RATES, - .formats = BFIN_I2S_FORMATS, - }, - .ops = &bfin_i2s_dai_ops, -}; - -static const struct snd_soc_component_driver bfin_i2s_component = { - .name = "bfin-i2s", -}; - -static int bfin_i2s_probe(struct platform_device *pdev) -{ - struct sport_device *sport; - struct device *dev = &pdev->dev; - int ret; - - sport = sport_create(pdev); - if (!sport) - return -ENODEV; - - /* register with the ASoC layers */ - ret = snd_soc_register_component(dev, &bfin_i2s_component, - &bfin_i2s_dai, 1); - if (ret) { - dev_err(dev, "Failed to register DAI: %d\n", ret); - sport_delete(sport); - return ret; - } - platform_set_drvdata(pdev, sport); - - return 0; -} - -static int bfin_i2s_remove(struct platform_device *pdev) -{ - struct sport_device *sport = platform_get_drvdata(pdev); - - snd_soc_unregister_component(&pdev->dev); - sport_delete(sport); - - return 0; -} - -static struct platform_driver bfin_i2s_driver = { - .probe = bfin_i2s_probe, - .remove = bfin_i2s_remove, - .driver = { - .name = "bfin-i2s", - }, -}; - -module_platform_driver(bfin_i2s_driver); - -MODULE_DESCRIPTION("Analog Devices BF6XX i2s interface driver"); -MODULE_AUTHOR("Scott Jiang <Scott.Jiang.Linux@gmail.com>"); -MODULE_LICENSE("GPL v2"); |