Logo Search packages:      
Sourcecode: alsa-driver version File versions  Download package

nuc900-audio.h

/*
 * Copyright (c) 2010 Nuvoton technology corporation.
 *
 * Wan ZongShun <mcuos.com@gmail.com>
 *
 * 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;version 2 of the License.
 *
 */

#ifndef _NUC900_AUDIO_H
#define _NUC900_AUDIO_H

#include <linux/io.h>

/* Audio Control Registers */
#define ACTL_CON        0x00
#define ACTL_RESET            0x04
#define ACTL_RDSTB            0x08
#define ACTL_RDST_LENGTH      0x0C
#define ACTL_RDSTC            0x10
#define ACTL_RSR        0x14
#define ACTL_PDSTB            0x18
#define ACTL_PDST_LENGTH      0x1C
#define ACTL_PDSTC            0x20
#define ACTL_PSR        0x24
#define ACTL_IISCON           0x28
#define ACTL_ACCON            0x2C
#define ACTL_ACOS0            0x30
#define ACTL_ACOS1            0x34
#define ACTL_ACOS2            0x38
#define ACTL_ACIS0            0x3C
#define ACTL_ACIS1            0x40
#define ACTL_ACIS2            0x44
#define ACTL_COUNTER          0x48

/* bit definition of REG_ACTL_CON register */
#define R_DMA_IRQ       0x1000
#define T_DMA_IRQ       0x0800
#define IIS_AC_PIN_SEL        0x0100
#define FIFO_TH               0x0080
#define ADC_EN                0x0010
#define M80_EN                0x0008
#define ACLINK_EN       0x0004
#define IIS_EN                0x0002

/* bit definition of REG_ACTL_RESET register */
#define W5691_PLAY            0x20000
#define ACTL_RESET_BIT        0x10000
#define RECORD_RIGHT_CHNNEL   0x08000
#define RECORD_LEFT_CHNNEL    0x04000
#define PLAY_RIGHT_CHNNEL     0x02000
#define PLAY_LEFT_CHNNEL      0x01000
#define DAC_PLAY        0x00800
#define ADC_RECORD            0x00400
#define M80_PLAY        0x00200
#define AC_RECORD       0x00100
#define AC_PLAY               0x00080
#define IIS_RECORD            0x00040
#define IIS_PLAY        0x00020
#define DAC_RESET       0x00010
#define ADC_RESET       0x00008
#define M80_RESET       0x00004
#define AC_RESET        0x00002
#define IIS_RESET       0x00001

/* bit definition of REG_ACTL_ACCON register */
#define AC_BCLK_PU_EN         0x20
#define AC_R_FINISH           0x10
#define AC_W_FINISH           0x08
#define AC_W_RES        0x04
#define AC_C_RES        0x02

/* bit definition of ACTL_RSR register */
#define R_FIFO_EMPTY          0x04
#define R_DMA_END_IRQ         0x02
#define R_DMA_MIDDLE_IRQ      0x01

/* bit definition of ACTL_PSR register */
#define P_FIFO_EMPTY          0x04
#define P_DMA_END_IRQ         0x02
#define P_DMA_MIDDLE_IRQ      0x01

/* bit definition of ACTL_ACOS0 register */
#define SLOT1_VALID           0x01
#define SLOT2_VALID           0x02
#define SLOT3_VALID           0x04
#define SLOT4_VALID           0x08
#define VALID_FRAME           0x10

/* bit definition of ACTL_ACOS1 register */
#define R_WB                  0x80

#define CODEC_READY           0x10
#define RESET_PRSR            0x00
#define AUDIO_WRITE(addr, val)      __raw_writel(val, addr)
#define AUDIO_READ(addr)      __raw_readl(addr)

00100 struct nuc900_audio {
      void __iomem *mmio;
      spinlock_t lock;
      dma_addr_t dma_addr[2];
      unsigned long buffersize[2];
      unsigned long irq_num;
      struct snd_pcm_substream *substream;
      struct resource *res;
      struct clk *clk;
      struct device *dev;

};

extern struct nuc900_audio *nuc900_ac97_data;

#endif /*end _NUC900_AUDIO_H */

Generated by  Doxygen 1.6.0   Back to index