sound/ppc/snd_ps3.h

   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
  28 enum 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
  35 enum 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
  42 enum snd_ps3_ch {
  43         SND_PS3_CH_L = 0,
  44         SND_PS3_CH_R = 1,
  45         SND_PS3_CH_MAX = 2
  46 };
  47
  48 struct 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  */
  60 struct 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_ */