LXR linux/sound/ppc/snd

   1/*
   2 * Audio support for PS3
   3 * Copyright (C) 2007 Sony Computer Entertainment Inc.
   4 * All rights reserved.
   5 * Copyright 2006, 2007 Sony Corporation
   6 *
   7 * This program is free software; you can redistribute it and/or modify
   8 * it under the terms of the GNU General Public License
   9 * as published by the Free Software Foundation; version 2 of the Licence.
  10 *
  11 * This program is distributed in the hope that it will be useful,
  12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 * GNU General Public License for more details.
  15 *
  16 * You should have received a copy of the GNU General Public License
  17 * along with this program; if not, write to the Free Software
  18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  19 */
  20
  21#if !defined(_SND_PS3_H_)
  22#define _SND_PS3_H_
  23
  24#include <linux/irqreturn.h>
  25
  26#define SND_PS3_DRIVER_NAME "snd_ps3"
  27
  28enum snd_ps3_out_channel {
  29        SND_PS3_OUT_SPDIF_0,
  30        SND_PS3_OUT_SPDIF_1,
  31        SND_PS3_OUT_SERIAL_0,
  32        SND_PS3_OUT_DEVS
  33};
  34
  35enum snd_ps3_dma_filltype {
  36        SND_PS3_DMA_FILLTYPE_FIRSTFILL,
  37        SND_PS3_DMA_FILLTYPE_RUNNING,
  38        SND_PS3_DMA_FILLTYPE_SILENT_FIRSTFILL,
  39        SND_PS3_DMA_FILLTYPE_SILENT_RUNNING
  40};
  41
  42enum snd_ps3_ch {
  43        SND_PS3_CH_L = 0,
  44        SND_PS3_CH_R = 1,
  45        SND_PS3_CH_MAX = 2
  46};
  47
  48struct snd_ps3_avsetting_info {
  49        uint32_t avs_audio_ch;     /* fixed */
  50        uint32_t avs_audio_rate;
  51        uint32_t avs_audio_width;
  52        uint32_t avs_audio_format; /* fixed */
  53        uint32_t avs_audio_source; /* fixed */
  54        unsigned char avs_cs_info[8];
  55};
  56/*
  57 * PS3 audio 'card' instance
  58 * there should be only ONE hardware.
  59 */
  60struct snd_ps3_card_info {
  61        struct ps3_system_bus_device *ps3_dev;
  62        struct snd_card *card;
  63
  64        struct snd_pcm *pcm;
  65        struct snd_pcm_substream *substream;
  66
  67        /* hvc info */
  68        u64 audio_lpar_addr;
  69        u64 audio_lpar_size;
  70
  71        /* registers */
  72        void __iomem *mapped_mmio_vaddr;
  73
  74        /* irq */
  75        u64 audio_irq_outlet;
  76        unsigned int irq_no;
  77
  78        /* remember avsetting */
  79        struct snd_ps3_avsetting_info avs;
  80
  81        /* dma buffer management */
  82        spinlock_t dma_lock;
  83                /* dma_lock start */
  84                void * dma_start_vaddr[2]; /* 0 for L, 1 for R */
  85                dma_addr_t dma_start_bus_addr[2];
  86                size_t dma_buffer_size;
  87                void * dma_last_transfer_vaddr[2];
  88                void * dma_next_transfer_vaddr[2];
  89                int    silent;
  90                /* dma_lock end */
  91
  92        int running;
  93
  94        /* null buffer */
  95        void *null_buffer_start_vaddr;
  96        dma_addr_t null_buffer_start_dma_addr;
  97
  98        /* start delay */
  99        unsigned int start_delay;
 100
 101};
 102
 103
 104/* PS3 audio DMAC block size in bytes */
 105#define PS3_AUDIO_DMAC_BLOCK_SIZE (128)
 106/* one stage (stereo)  of audio FIFO in bytes */
 107#define PS3_AUDIO_FIFO_STAGE_SIZE (256)
 108/* how many stages the fifo have */
 109#define PS3_AUDIO_FIFO_STAGE_COUNT (8)
 110/* fifo size 128 bytes * 8 stages * stereo (2ch) */
 111#define PS3_AUDIO_FIFO_SIZE \
 112        (PS3_AUDIO_FIFO_STAGE_SIZE * PS3_AUDIO_FIFO_STAGE_COUNT)
 113
 114/* PS3 audio DMAC max block count in one dma shot = 128 (0x80) blocks*/
 115#define PS3_AUDIO_DMAC_MAX_BLOCKS  (PS3_AUDIO_DMASIZE_BLOCKS_MASK + 1)
 116
 117#define PS3_AUDIO_NORMAL_DMA_START_CH (0)
 118#define PS3_AUDIO_NORMAL_DMA_COUNT    (8)
 119#define PS3_AUDIO_NULL_DMA_START_CH \
 120        (PS3_AUDIO_NORMAL_DMA_START_CH + PS3_AUDIO_NORMAL_DMA_COUNT)
 121#define PS3_AUDIO_NULL_DMA_COUNT      (2)
 122
 123#define SND_PS3_MAX_VOL (0x0F)
 124#define SND_PS3_MIN_VOL (0x00)
 125#define SND_PS3_MIN_ATT SND_PS3_MIN_VOL
 126#define SND_PS3_MAX_ATT SND_PS3_MAX_VOL
 127
 128#define SND_PS3_PCM_PREALLOC_SIZE \
 129        (PS3_AUDIO_DMAC_BLOCK_SIZE * PS3_AUDIO_DMAC_MAX_BLOCKS * 4)
 130
 131#define SND_PS3_DMA_REGION_SIZE \
 132        (SND_PS3_PCM_PREALLOC_SIZE + PAGE_SIZE)
 133
 134#define PS3_AUDIO_IOID       (1UL)
 135
 136#endif /* _SND_PS3_H_ */
 137