diff options
Diffstat (limited to 'ANDROID_3.4.5/sound/soc/wmt/wmt-pcm-controller.c')
| -rwxr-xr-x | ANDROID_3.4.5/sound/soc/wmt/wmt-pcm-controller.c | 419 |
1 files changed, 0 insertions, 419 deletions
diff --git a/ANDROID_3.4.5/sound/soc/wmt/wmt-pcm-controller.c b/ANDROID_3.4.5/sound/soc/wmt/wmt-pcm-controller.c deleted file mode 100755 index dccb82c6..00000000 --- a/ANDROID_3.4.5/sound/soc/wmt/wmt-pcm-controller.c +++ /dev/null @@ -1,419 +0,0 @@ -/*++ - * linux/sound/soc/wmt/wmt-pdm-if.c - * WonderMedia I2S audio driver for ALSA - * - * Copyright c 2010 WonderMedia Technologies, Inc. - * - * 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 <http://www.gnu.org/licenses/>. - * - * WonderMedia Technologies, Inc. - * 4F, 533, Chung-Cheng Road, Hsin-Tien, Taipei 231, R.O.C ---*/ - - -#include <linux/init.h> -#include <linux/module.h> -#include <linux/device.h> -#include <linux/interrupt.h> -#include <asm/irq.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 <mach/hardware.h> -#include <asm/dma.h> -#include "wmt-soc.h" -#include "wmt-pcm-controller.h" - -#define PCM_IS_MASTER_MODE -#define NULL_DMA ((dmach_t)(-1)) - -static int wmt_pcm_module_enable = 0; -extern int wmt_getsyspara(char *varname, unsigned char *varval, int *varlen); - -static struct audio_stream_a wmt_pcm_controller_data[] = { - { - .id = "WMT PCM out", - .stream_id = SNDRV_PCM_STREAM_PLAYBACK, - .dmach = NULL_DMA, - .dma_dev = PCM_TX_DMA_REQ, - /*.dma_cfg = dma_device_cfg_table[I2S_TX_DMA_REQ],*/ - }, - { - .id = "WMT PCM in", - .stream_id = SNDRV_PCM_STREAM_CAPTURE, - .dmach = NULL_DMA, - .dma_dev = PCM_RX_DMA_REQ, - /*.dma_cfg = dma_device_cfg_table[I2S_RX_DMA_REQ],*/ - }, -}; - -struct wmt_pcm_controller -{ - int irq_no; - int pcm_clk_src; - int pcm_enable; -}; - -static struct wmt_pcm_controller wmt_pcm_controller; - -static irqreturn_t -wmt_pcm_controller_irq_handler(int irq, void *dev_id) -{ - if (PCMSR_VAL & PCMSR_TXUND) { - printk("-->PCMSR_TXUND\n"); - } - else if (PCMSR_VAL & PCMSR_RXOVR) { - printk("-->PCMSR_RXOVR\n"); - } - - PCMSR_VAL = 0x7F; //write clear all intr - return IRQ_HANDLED; -} - -static void wmt_pcm_controller_enable(void) -{ - PCMCR_VAL |= (PCMCR_PCM_ENABLE | PCMCR_DMA_EN); -} - -static void wmt_pcm_controller_disable(void) -{ - PCMCR_VAL &= ~(PCMCR_PCM_ENABLE | PCMCR_DMA_EN); -} - -static int wmt_pcm_controller_init(void) -{ - wmt_pcm_controller.irq_no = IRQ_PCM; - - // Before control pcm-module, enable pcm clock first - CLOCKEN(27); - - // set pcm_clk_source = 62464khz - //auto_pll_divisor(DEV_PCM0, CLK_ENABLE, 0, 0); - //auto_pll_divisor(DEV_PCM0, SET_PLLDIV, 1, 83333); - - wmt_pcm_controller.pcm_clk_src = auto_pll_divisor(DEV_PCM0, GET_FREQ, 0, 0); - wmt_pcm_controller.pcm_clk_src /= 1000; - wmt_pcm_controller.pcm_enable = 0; - printk("wmt_pcm_controller_init: pcm_clk_src=%d \n\r", wmt_pcm_controller.pcm_clk_src); - - // Note: you should config PIN_SHARING_SEL_4BYTE_VAL if using pcm function!!! Loon mark at 2013/4/10 - if (wmt_pcm_module_enable) { - printk("begin to configure pcm pin\n"); - /* disable GPIO and Pull Down mode */ - /* Bit1:I2SDACDAT1=PCMSYNC, Bit2:I2SDACDAT2=PCMCLK, Bit3:I2SDACDAT3=PCMIN, Bit4:I2SADCMCLK=PCMOUT */ - GPIO_CTRL_GP10_I2S_BYTE_VAL &= ~(BIT1 | BIT2 | BIT3 | BIT4); - GPIO_CTRL_GP11_I2S_BYTE_VAL &= ~(BIT1); - /*disable pull enable*/ - PULL_EN_GP10_I2S_BYTE_VAL &= ~(BIT1 | BIT2 | BIT3 | BIT4); - PULL_EN_GP11_I2S_BYTE_VAL &= ~(BIT1); - - /* set to pcm mode */ - // select PCMMCLK[bit0], PCMSYNC[bit17:16], PCMCLK[19:18], PCMIN[20], PCMOUT[22:21] - //GPIO_PIN_SHARING_SEL_4BYTE_VAL &= ~(BIT21); - GPIO_PIN_SHARING_SEL_4BYTE_VAL |= (BIT15 | BIT16 | BIT17 | BIT18 | BIT19 |BIT20); - } - - // set pcm control register - PCMCR_VAL |= (PCMCR_TXFF_RST | PCMCR_RXFF_RST); - //PCMCR_VAL |= 0x00880000; // TX/RX Fifo Threshold A - PCMCR_VAL &= ~(PCMCR_BCLK_SEL); - PCMCR_VAL &= ~PCMCR_SLAVE; // master mode - PCMCR_VAL |= PCMCR_SYNC_MODE;//short frame sync - - // set pcm format register - PCMDFCR_VAL = 0; - PCMDFCR_VAL |= (PCMDFCR_WR_AL | PCMDFCR_TX_AL | PCMDFCR_RX_AL | PCMDFCR_RD_AL); - PCMDFCR_VAL |= (PCMDFCR_TX_SZ_14 | PCMDFCR_RX_SZ_14); - //PCMDFCR_VAL |= (PCMDFCR_TX_SZ_08 | PCMDFCR_RX_SZ_08); - - // - // request irq - // - /*if (request_irq(wmt_pcm_controller.irq_no, &wmt_pcm_controller_irq_handler, IRQF_DISABLED, "wmt_pcm_controller", NULL)){ - printk(KERN_ERR "PCM_IRQ Request Failed!\n"); - } - PCMCR_VAL |= (PCMCR_IRQ_EN | PCMCR_TXUND_EN | PCMCR_RXOVR_EN); - */ - printk("fun:%s,line:%d\n",__func__,__LINE__); - return 0 ; -} - - -static int wmt_pcm_controller_dai_startup(struct snd_pcm_substream *substream, - struct snd_soc_dai *dai) -{ - struct snd_pcm_runtime *runtime = substream->runtime; - int stream_id = substream->pstr->stream; - struct audio_stream_a *s = &wmt_pcm_controller_data[0]; - //dump_stack(); - s[stream_id].stream = substream; - runtime->private_data = s; - - return 0; -} - -static void wmt_pcm_controller_dai_shutdown(struct snd_pcm_substream *substream, struct snd_soc_dai *dai) -{ - //dump_stack(); -} - -static int wmt_pcm_controller_dai_trigger(struct snd_pcm_substream *substream, int cmd, - struct snd_soc_dai *dai) -{ - int err = 0; - int stream_id = substream->pstr->stream; - //dump_stack(); - switch (cmd) { - case SNDRV_PCM_TRIGGER_START: - case SNDRV_PCM_TRIGGER_RESUME: - case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: - if (stream_id == SNDRV_PCM_STREAM_PLAYBACK) { - PCMCR_VAL |= PCMCR_TXFF_RST; // reset txfifo - PCMDFCR_VAL |= PCMDFCR_TXFM_EN; - } - else if (stream_id == SNDRV_PCM_STREAM_CAPTURE) { - PCMCR_VAL |= PCMCR_RXFF_RST; // reset rxfifo - PCMDFCR_VAL |= PCMDFCR_RXFM_EN; - } - //wmt_pcm_controller_enable(); - wmt_pcm_controller.pcm_enable++; - break; - - case SNDRV_PCM_TRIGGER_STOP: - case SNDRV_PCM_TRIGGER_SUSPEND: - case SNDRV_PCM_TRIGGER_PAUSE_PUSH: - if (stream_id == SNDRV_PCM_STREAM_PLAYBACK) { - PCMDFCR_VAL &= ~PCMDFCR_TXFM_EN; - } - else if (stream_id == SNDRV_PCM_STREAM_CAPTURE) { - PCMDFCR_VAL &= ~PCMDFCR_RXFM_EN; - } - //wmt_pcm_controller_disable(); - wmt_pcm_controller.pcm_enable--; - break; - default: - err = -EINVAL; - break; - } - - if (wmt_pcm_controller.pcm_enable) - wmt_pcm_controller_enable(); - else - wmt_pcm_controller_disable(); - - return err; -} - -static int wmt_pcm_controller_dai_hw_params(struct snd_pcm_substream *substream, - struct snd_pcm_hw_params *params, struct snd_soc_dai *dai) -{ - //dump_stack(); - return 0; -} - -static int wmt_pcm_controller_dai_prepare(struct snd_pcm_substream *substream, struct snd_soc_dai *dai) -{ - struct snd_pcm_runtime *runtime = substream->runtime; - unsigned int channel, byte; - int stream_id = substream->pstr->stream; - - byte = (runtime->sample_bits)/8; - channel = runtime->channels; - - printk(KERN_INFO "wmt_pcm_controller_dai_prepare byte = %d, channels = %d\n", byte, runtime->channels); - - /* format setting */ - if (stream_id == SNDRV_PCM_STREAM_PLAYBACK) { - /* little or big endian check */ - switch (runtime->format) { - case SNDRV_PCM_FORMAT_S16_LE: - break; - default: - break; - } - - /* channel number check */ - switch (runtime->channels) { - case 1: - break; - case 2: - break; - default: - break; - } - } - else if (stream_id == SNDRV_PCM_STREAM_CAPTURE) { - /* little or big endian check */ - switch (runtime->format) { - case SNDRV_PCM_FORMAT_S16_LE: - break; - default: - break; - } - - /* channel number check */ - switch (runtime->channels) { - case 1: - break; - case 2: - break; - default: - break; - } - } - - switch (runtime->rate) { - case 16000: - PCMDIVR_VAL &= ~PCMCLK_DIV_MASK; - PCMDIVR_VAL |= (wmt_pcm_controller.pcm_clk_src / PCMCLK_256K); - break; - case 8000: - PCMDIVR_VAL &= ~PCMCLK_DIV_MASK; - PCMDIVR_VAL |= (wmt_pcm_controller.pcm_clk_src / PCMCLK_128K); - break; - default : - printk(KERN_ERR "not supported fs: %d \n\r", runtime->rate); - break; - } - - return 0; -} - -/* - * This must be called before _set_clkdiv and _set_sysclk since McBSP register - * cache is initialized here - */ -static int wmt_pcm_controller_dai_set_dai_fmt(struct snd_soc_dai *cpu_dai, - unsigned int fmt) -{ - return 0; -} - -#ifdef CONFIG_PM -static int wmt_pcm_controller_suspend(struct snd_soc_dai *cpu_dai) -{ - return 0; -} - -static int wmt_pcm_controller_resume(struct snd_soc_dai *cpu_dai) -{ - int ret = wmt_pcm_controller_init(); - if (ret) { - pr_err("Failed to init pcm module: %d\n", ret); - return ret; - } - return 0; -} -#else -#define wmt_pcm_controller_suspend NULL -#define wmt_pcm_controller_resume NULL -#endif - -static struct snd_soc_dai_ops wmt_pcm_controller_dai_ops = { - .startup = wmt_pcm_controller_dai_startup, - .prepare = wmt_pcm_controller_dai_prepare, - .shutdown = wmt_pcm_controller_dai_shutdown, - .trigger = wmt_pcm_controller_dai_trigger, - .hw_params = wmt_pcm_controller_dai_hw_params, - .set_fmt = wmt_pcm_controller_dai_set_dai_fmt, -}; - -struct snd_soc_dai_driver wmt_pcm_controller_dai = { - .suspend = wmt_pcm_controller_suspend, - .resume = wmt_pcm_controller_resume, - .playback = { - .channels_min = 1, - .channels_max = 1, - .rates = SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_8000, - .formats = SNDRV_PCM_FMTBIT_S16_LE, - }, - .capture = { - .channels_min = 1, - .channels_max = 1, - .rates = SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_8000, - .formats = SNDRV_PCM_FMTBIT_S16_LE, - }, - .ops = &wmt_pcm_controller_dai_ops, -}; - -static int wmt_pcm_controller_probe(struct platform_device *pdev) -{ - int ret = 0; - char buf[64]; - int varlen = 64; - - ret = wmt_getsyspara("wmt.audio.pcm", buf, &varlen); - if (ret == 0) { - sscanf(buf, "%d", &wmt_pcm_module_enable); - } - - ret = wmt_pcm_controller_init(); - if (ret) { - pr_err("Failed to init pcm module: %d\n", ret); - return ret; - } - - /* register with the ASoC layers */ - ret = snd_soc_register_dai(&pdev->dev, &wmt_pcm_controller_dai); - if (ret) { - pr_err("Failed to register DAI: %d\n", ret); - return ret; - } - - wmt_pcm_controller_data[0].dma_cfg = dma_device_cfg_table[PCM_TX_DMA_REQ]; - wmt_pcm_controller_data[1].dma_cfg = dma_device_cfg_table[PCM_RX_DMA_REQ]; - - spin_lock_init(&wmt_pcm_controller_data[0].dma_lock); - spin_lock_init(&wmt_pcm_controller_data[1].dma_lock); - - return 0; -} - -static int __devexit wmt_pcm_controller_remove(struct platform_device *pdev) -{ - snd_soc_unregister_dai(&pdev->dev); - return 0; -} - -static struct platform_driver wmt_pcm_controller_driver = { - .probe = wmt_pcm_controller_probe, - .remove = __devexit_p(wmt_pcm_controller_remove), - .driver = { - .name = "wmt-pcm-controller", - .owner = THIS_MODULE, - }, -}; - - -static int __init wmt_pcm_controller_module_init(void) -{ - return platform_driver_register(&wmt_pcm_controller_driver); -} - -static void __exit wmt_pcm_controller_module_exit(void) -{ - platform_driver_unregister(&wmt_pcm_controller_driver); -} - -module_init(wmt_pcm_controller_module_init); -module_exit(wmt_pcm_controller_module_exit); - -MODULE_AUTHOR("WonderMedia Technologies, Inc."); -MODULE_DESCRIPTION("WMT [ALSA SoC] driver"); -MODULE_LICENSE("GPL"); - |