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

source code of linux/sound/ppc/snd_ps3.h