diff options
Diffstat (limited to 'ANDROID_3.4.5/sound/soc/blackfin/bf5xx-i2s.c')
| -rw-r--r-- | ANDROID_3.4.5/sound/soc/blackfin/bf5xx-i2s.c | 297 |
1 files changed, 0 insertions, 297 deletions
diff --git a/ANDROID_3.4.5/sound/soc/blackfin/bf5xx-i2s.c b/ANDROID_3.4.5/sound/soc/blackfin/bf5xx-i2s.c deleted file mode 100644 index 4dccf037..00000000 --- a/ANDROID_3.4.5/sound/soc/blackfin/bf5xx-i2s.c +++ /dev/null @@ -1,297 +0,0 @@ -/* - * File: sound/soc/blackfin/bf5xx-i2s.c - * Author: Cliff Cai <Cliff.Cai@analog.com> - * - * Created: Tue June 06 2008 - * Description: Blackfin I2S CPU DAI driver - * - * Modified: - * Copyright 2008 Analog Devices Inc. - * - * 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/init.h> -#include <linux/module.h> -#include <linux/device.h> -#include <linux/delay.h> -#include <sound/core.h> -#include <sound/pcm.h> -#include <sound/pcm_params.h> -#include <sound/initval.h> -#include <sound/soc.h> - -#include <asm/irq.h> -#include <asm/portmux.h> -#include <linux/mutex.h> -#include <linux/gpio.h> - -#include "bf5xx-sport.h" - -struct bf5xx_i2s_port { - u16 tcr1; - u16 rcr1; - u16 tcr2; - u16 rcr2; - int configured; -}; - -static int bf5xx_i2s_set_dai_fmt(struct snd_soc_dai *cpu_dai, - unsigned int fmt) -{ - struct sport_device *sport_handle = snd_soc_dai_get_drvdata(cpu_dai); - struct bf5xx_i2s_port *bf5xx_i2s = sport_handle->private_data; - int ret = 0; - - /* interface format:support I2S,slave mode */ - switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { - case SND_SOC_DAIFMT_I2S: - bf5xx_i2s->tcr1 |= TFSR | TCKFE; - bf5xx_i2s->rcr1 |= RFSR | RCKFE; - bf5xx_i2s->tcr2 |= TSFSE; - bf5xx_i2s->rcr2 |= RSFSE; - break; - case SND_SOC_DAIFMT_DSP_A: - bf5xx_i2s->tcr1 |= TFSR; - bf5xx_i2s->rcr1 |= RFSR; - break; - case SND_SOC_DAIFMT_LEFT_J: - ret = -EINVAL; - break; - default: - printk(KERN_ERR "%s: Unknown DAI format type\n", __func__); - ret = -EINVAL; - break; - } - - 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: - printk(KERN_ERR "%s: Unknown DAI master type\n", __func__); - ret = -EINVAL; - break; - } - - return ret; -} - -static int bf5xx_i2s_hw_params(struct snd_pcm_substream *substream, - struct snd_pcm_hw_params *params, - struct snd_soc_dai *dai) -{ - struct sport_device *sport_handle = snd_soc_dai_get_drvdata(dai); - struct bf5xx_i2s_port *bf5xx_i2s = sport_handle->private_data; - int ret = 0; - - bf5xx_i2s->tcr2 &= ~0x1f; - bf5xx_i2s->rcr2 &= ~0x1f; - switch (params_format(params)) { - case SNDRV_PCM_FORMAT_S8: - bf5xx_i2s->tcr2 |= 7; - bf5xx_i2s->rcr2 |= 7; - sport_handle->wdsize = 1; - case SNDRV_PCM_FORMAT_S16_LE: - bf5xx_i2s->tcr2 |= 15; - bf5xx_i2s->rcr2 |= 15; - sport_handle->wdsize = 2; - break; - case SNDRV_PCM_FORMAT_S24_LE: - bf5xx_i2s->tcr2 |= 23; - bf5xx_i2s->rcr2 |= 23; - sport_handle->wdsize = 3; - break; - case SNDRV_PCM_FORMAT_S32_LE: - bf5xx_i2s->tcr2 |= 31; - bf5xx_i2s->rcr2 |= 31; - sport_handle->wdsize = 4; - break; - } - - if (!bf5xx_i2s->configured) { - /* - * TX and RX are not independent,they are enabled at the - * same time, even if only one side is running. So, we - * need to configure both of them at the time when the first - * stream is opened. - * - * CPU DAI:slave mode. - */ - bf5xx_i2s->configured = 1; - ret = sport_config_rx(sport_handle, bf5xx_i2s->rcr1, - bf5xx_i2s->rcr2, 0, 0); - if (ret) { - pr_err("SPORT is busy!\n"); - return -EBUSY; - } - - ret = sport_config_tx(sport_handle, bf5xx_i2s->tcr1, - bf5xx_i2s->tcr2, 0, 0); - if (ret) { - pr_err("SPORT is busy!\n"); - return -EBUSY; - } - } - - return 0; -} - -static void bf5xx_i2s_shutdown(struct snd_pcm_substream *substream, - struct snd_soc_dai *dai) -{ - struct sport_device *sport_handle = snd_soc_dai_get_drvdata(dai); - struct bf5xx_i2s_port *bf5xx_i2s = sport_handle->private_data; - - pr_debug("%s enter\n", __func__); - /* No active stream, SPORT is allowed to be configured again. */ - if (!dai->active) - bf5xx_i2s->configured = 0; -} - -#ifdef CONFIG_PM -static int bf5xx_i2s_suspend(struct snd_soc_dai *dai) -{ - struct sport_device *sport_handle = snd_soc_dai_get_drvdata(dai); - - pr_debug("%s : sport %d\n", __func__, dai->id); - - if (dai->capture_active) - sport_rx_stop(sport_handle); - if (dai->playback_active) - sport_tx_stop(sport_handle); - return 0; -} - -static int bf5xx_i2s_resume(struct snd_soc_dai *dai) -{ - struct sport_device *sport_handle = snd_soc_dai_get_drvdata(dai); - struct bf5xx_i2s_port *bf5xx_i2s = sport_handle->private_data; - int ret; - - pr_debug("%s : sport %d\n", __func__, dai->id); - - ret = sport_config_rx(sport_handle, bf5xx_i2s->rcr1, - bf5xx_i2s->rcr2, 0, 0); - if (ret) { - pr_err("SPORT is busy!\n"); - return -EBUSY; - } - - ret = sport_config_tx(sport_handle, bf5xx_i2s->tcr1, - bf5xx_i2s->tcr2, 0, 0); - if (ret) { - pr_err("SPORT is busy!\n"); - return -EBUSY; - } - - return 0; -} - -#else -#define bf5xx_i2s_suspend NULL -#define bf5xx_i2s_resume NULL -#endif - -#define BF5XX_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 BF5XX_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 bf5xx_i2s_dai_ops = { - .shutdown = bf5xx_i2s_shutdown, - .hw_params = bf5xx_i2s_hw_params, - .set_fmt = bf5xx_i2s_set_dai_fmt, -}; - -static struct snd_soc_dai_driver bf5xx_i2s_dai = { - .suspend = bf5xx_i2s_suspend, - .resume = bf5xx_i2s_resume, - .playback = { - .channels_min = 1, - .channels_max = 2, - .rates = BF5XX_I2S_RATES, - .formats = BF5XX_I2S_FORMATS,}, - .capture = { - .channels_min = 1, - .channels_max = 2, - .rates = BF5XX_I2S_RATES, - .formats = BF5XX_I2S_FORMATS,}, - .ops = &bf5xx_i2s_dai_ops, -}; - -static int __devinit bf5xx_i2s_probe(struct platform_device *pdev) -{ - struct sport_device *sport_handle; - int ret; - - /* configure SPORT for I2S */ - sport_handle = sport_init(pdev, 4, 2 * sizeof(u32), - sizeof(struct bf5xx_i2s_port)); - if (!sport_handle) - return -ENODEV; - - /* register with the ASoC layers */ - ret = snd_soc_register_dai(&pdev->dev, &bf5xx_i2s_dai); - if (ret) { - pr_err("Failed to register DAI: %d\n", ret); - sport_done(sport_handle); - return ret; - } - - return 0; -} - -static int __devexit bf5xx_i2s_remove(struct platform_device *pdev) -{ - struct sport_device *sport_handle = platform_get_drvdata(pdev); - - pr_debug("%s enter\n", __func__); - - snd_soc_unregister_dai(&pdev->dev); - sport_done(sport_handle); - - return 0; -} - -static struct platform_driver bfin_i2s_driver = { - .probe = bf5xx_i2s_probe, - .remove = __devexit_p(bf5xx_i2s_remove), - .driver = { - .name = "bfin-i2s", - .owner = THIS_MODULE, - }, -}; - -module_platform_driver(bfin_i2s_driver); - -/* Module information */ -MODULE_AUTHOR("Cliff Cai"); -MODULE_DESCRIPTION("I2S driver for ADI Blackfin"); -MODULE_LICENSE("GPL"); - |