LXR linux/sound/ppc/snd

   1/* SPDX-License-Identifier: GPL-2.0-only */
   2/*
   3 * Audio support for PS3
   4 * Copyright (C) 2007 Sony Computer Entertainment Inc.
   5 * All rights reserved.
   6 * Copyright 2006, 2007 Sony Corporation
   7 */
   8
   9#if !defined(_SND_PS3_H_)
  10#define _SND_PS3_H_
  11
  12#include <linux/irqreturn.h>
  13
  14#define SND_PS3_DRIVER_NAME "snd_ps3"
  15
  16enum snd_ps3_out_channel {
  17        SND_PS3_OUT_SPDIF_0,
  18        SND_PS3_OUT_SPDIF_1,
  19        SND_PS3_OUT_SERIAL_0,
  20        SND_PS3_OUT_DEVS
  21};
  22
  23enum snd_ps3_dma_filltype {
  24        SND_PS3_DMA_FILLTYPE_FIRSTFILL,
  25        SND_PS3_DMA_FILLTYPE_RUNNING,
  26        SND_PS3_DMA_FILLTYPE_SILENT_FIRSTFILL,
  27        SND_PS3_DMA_FILLTYPE_SILENT_RUNNING
  28};
  29
  30enum snd_ps3_ch {
  31        SND_PS3_CH_L = 0,
  32        SND_PS3_CH_R = 1,
  33        SND_PS3_CH_MAX = 2
  34};
  35
  36struct snd_ps3_avsetting_info {
  37        uint32_t avs_audio_ch;     /* fixed */
  38        uint32_t avs_audio_rate;
  39        uint32_t avs_audio_width;
  40        uint32_t avs_audio_format; /* fixed */
  41        uint32_t avs_audio_source; /* fixed */
  42        unsigned char avs_cs_info[8];
  43};
  44/*
  45 * PS3 audio 'card' instance
  46 * there should be only ONE hardware.
  47 */
  48struct snd_ps3_card_info {
  49        struct ps3_system_bus_device *ps3_dev;
  50        struct snd_card *card;
  51
  52        struct snd_pcm *pcm;
  53        struct snd_pcm_substream *substream;
  54
  55        /* hvc info */
  56        u64 audio_lpar_addr;
  57        u64 audio_lpar_size;
  58
  59        /* registers */
  60        void __iomem *mapped_mmio_vaddr;
  61
  62        /* irq */
  63        u64 audio_irq_outlet;
  64        unsigned int irq_no;
  65
  66        /* remember avsetting */
  67        struct snd_ps3_avsetting_info avs;
  68
  69        /* dma buffer management */
  70        spinlock_t dma_lock;
  71                /* dma_lock start */
  72                void * dma_start_vaddr[2]; /* 0 for L, 1 for R */
  73                dma_addr_t dma_start_bus_addr[2];
  74                size_t dma_buffer_size;
  75                void * dma_last_transfer_vaddr[2];
  76                void * dma_next_transfer_vaddr[2];
  77                int    silent;
  78                /* dma_lock end */
  79
  80        int running;
  81
  82        /* null buffer */
  83        void *null_buffer_start_vaddr;
  84        dma_addr_t null_buffer_start_dma_addr;
  85
  86        /* start delay */
  87        unsigned int start_delay;
  88
  89};
  90
  91
  92/* PS3 audio DMAC block size in bytes */
  93#define PS3_AUDIO_DMAC_BLOCK_SIZE (128)
  94/* one stage (stereo)  of audio FIFO in bytes */
  95#define PS3_AUDIO_FIFO_STAGE_SIZE (256)
  96/* how many stages the fifo have */
  97#define PS3_AUDIO_FIFO_STAGE_COUNT (8)
  98/* fifo size 128 bytes * 8 stages * stereo (2ch) */
  99#define PS3_AUDIO_FIFO_SIZE \
 100        (PS3_AUDIO_FIFO_STAGE_SIZE * PS3_AUDIO_FIFO_STAGE_COUNT)
 101
 102/* PS3 audio DMAC max block count in one dma shot = 128 (0x80) blocks*/
 103#define PS3_AUDIO_DMAC_MAX_BLOCKS  (PS3_AUDIO_DMASIZE_BLOCKS_MASK + 1)
 104
 105#define PS3_AUDIO_NORMAL_DMA_START_CH (0)
 106#define PS3_AUDIO_NORMAL_DMA_COUNT    (8)
 107#define PS3_AUDIO_NULL_DMA_START_CH \
 108        (PS3_AUDIO_NORMAL_DMA_START_CH + PS3_AUDIO_NORMAL_DMA_COUNT)
 109#define PS3_AUDIO_NULL_DMA_COUNT      (2)
 110
 111#define SND_PS3_MAX_VOL (0x0F)
 112#define SND_PS3_MIN_VOL (0x00)
 113#define SND_PS3_MIN_ATT SND_PS3_MIN_VOL
 114#define SND_PS3_MAX_ATT SND_PS3_MAX_VOL
 115
 116#define SND_PS3_PCM_PREALLOC_SIZE \
 117        (PS3_AUDIO_DMAC_BLOCK_SIZE * PS3_AUDIO_DMAC_MAX_BLOCKS * 4)
 118
 119#define SND_PS3_DMA_REGION_SIZE \
 120        (SND_PS3_PCM_PREALLOC_SIZE + PAGE_SIZE)
 121
 122#define PS3_AUDIO_IOID       (1UL)
 123
 124#endif /* _SND_PS3_H_ */
 125