text: /*
   * Audio support for PS3
   * Copyright (C) 2007 Sony Computer Entertainment Inc.
   * All rights reserved.
   * Copyright 2006, 2007 Sony Corporation
   *
   * 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 Licence.
   *
   * 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
   */
  
  #if !defined(_SND_PS3_H_)
  #define _SND_PS3_H_
  
  #include <linux/irqreturn.h>
  
  #define SND_PS3_DRIVER_NAME "snd_ps3"
  
  enum snd_ps3_out_channel {
  	SND_PS3_OUT_SPDIF_0,
  	SND_PS3_OUT_SPDIF_1,
  	SND_PS3_OUT_SERIAL_0,
  	SND_PS3_OUT_DEVS
  };
  
  enum snd_ps3_dma_filltype {
  	SND_PS3_DMA_FILLTYPE_FIRSTFILL,
  	SND_PS3_DMA_FILLTYPE_RUNNING,
  	SND_PS3_DMA_FILLTYPE_SILENT_FIRSTFILL,
  	SND_PS3_DMA_FILLTYPE_SILENT_RUNNING
  };
  
  enum snd_ps3_ch {
  	SND_PS3_CH_L = 0,
  	SND_PS3_CH_R = 1,
  	SND_PS3_CH_MAX = 2
  };
  
  struct snd_ps3_avsetting_info {
  	uint32_t avs_audio_ch;     /* fixed */
  	uint32_t avs_audio_rate;
  	uint32_t avs_audio_width;
  	uint32_t avs_audio_format; /* fixed */
  	uint32_t avs_audio_source; /* fixed */
  	unsigned char avs_cs_info[8];
  };
  /*
   * PS3 audio 'card' instance
   * there should be only ONE hardware.
   */
  struct snd_ps3_card_info {
  	struct ps3_system_bus_device *ps3_dev;
  	struct snd_card *card;
  
  	struct snd_pcm *pcm;
  	struct snd_pcm_substream *substream;
  
  	/* hvc info */
  	u64 audio_lpar_addr;
  	u64 audio_lpar_size;
  
  	/* registers */
  	void __iomem *mapped_mmio_vaddr;
  
  	/* irq */
  	u64 audio_irq_outlet;
  	unsigned int irq_no;
  
  	/* remember avsetting */
  	struct snd_ps3_avsetting_info avs;
  
  	/* dma buffer management */
  	spinlock_t dma_lock;
  		/* dma_lock start */
  		void * dma_start_vaddr[2]; /* 0 for L, 1 for R */
  		dma_addr_t dma_start_bus_addr[2];
  		size_t dma_buffer_size;
  		void * dma_last_transfer_vaddr[2];
  		void * dma_next_transfer_vaddr[2];
  		int    silent;
  		/* dma_lock end */
  
  	int running;
  
  	/* null buffer */
  	void *null_buffer_start_vaddr;
  	dma_addr_t null_buffer_start_dma_addr;
  
  	/* start delay */
  	unsigned int start_delay;
  
  };
  
  
  /* PS3 audio DMAC block size in bytes */
  #define PS3_AUDIO_DMAC_BLOCK_SIZE (128)
  /* one stage (stereo)  of audio FIFO in bytes */
  #define PS3_AUDIO_FIFO_STAGE_SIZE (256)
  /* how many stages the fifo have */
  #define PS3_AUDIO_FIFO_STAGE_COUNT (8)
  /* fifo size 128 bytes * 8 stages * stereo (2ch) */
  #define PS3_AUDIO_FIFO_SIZE \
  	(PS3_AUDIO_FIFO_STAGE_SIZE * PS3_AUDIO_FIFO_STAGE_COUNT)
  
  /* PS3 audio DMAC max block count in one dma shot = 128 (0x80) blocks*/
  #define PS3_AUDIO_DMAC_MAX_BLOCKS  (PS3_AUDIO_DMASIZE_BLOCKS_MASK + 1)
  
  #define PS3_AUDIO_NORMAL_DMA_START_CH (0)
  #define PS3_AUDIO_NORMAL_DMA_COUNT    (8)
  #define PS3_AUDIO_NULL_DMA_START_CH \
  	(PS3_AUDIO_NORMAL_DMA_START_CH + PS3_AUDIO_NORMAL_DMA_COUNT)
  #define PS3_AUDIO_NULL_DMA_COUNT      (2)
  
  #define SND_PS3_MAX_VOL (0x0F)
  #define SND_PS3_MIN_VOL (0x00)
  #define SND_PS3_MIN_ATT SND_PS3_MIN_VOL
  #define SND_PS3_MAX_ATT SND_PS3_MAX_VOL
  
  #define SND_PS3_PCM_PREALLOC_SIZE \
  	(PS3_AUDIO_DMAC_BLOCK_SIZE * PS3_AUDIO_DMAC_MAX_BLOCKS * 4)
  
  #define SND_PS3_DMA_REGION_SIZE \
  	(SND_PS3_PCM_PREALLOC_SIZE + PAGE_SIZE)
  
  #define PS3_AUDIO_IOID       (1UL)
  
  #endif /* _SND_PS3_H_ */
  