1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
|
/*
* Copyright (C) 2016 Intel Corporation
* Authors: Sailaja Bandarupalli <sailaja.bandarupalli@intel.com>
* Ramesh Babu K V <ramesh.babu@intel.com>
* Vaibhav Agarwal <vaibhav.agarwal@intel.com>
* Jerome Anand <jerome.anand@intel.com>
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files
* (the "Software"), to deal in the Software without restriction,
* including without limitation the rights to use, copy, modify, merge,
* publish, distribute, sublicense, and/or sell copies of the Software,
* and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial
* portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#ifndef _INTEL_HDMI_AUDIO_H_
#define _INTEL_HDMI_AUDIO_H_
#include <linux/types.h>
#include <sound/initval.h>
#include <linux/version.h>
#include <linux/pm_runtime.h>
#include <sound/asoundef.h>
#include <sound/control.h>
#include <sound/pcm.h>
#include "intel_hdmi_lpe_audio.h"
#define PCM_INDEX 0
#define MAX_PB_STREAMS 1
#define MAX_CAP_STREAMS 0
#define HDMI_AUDIO_DRIVER "hdmi-audio"
#define HDMI_INFO_FRAME_WORD1 0x000a0184
#define DP_INFO_FRAME_WORD1 0x00441b84
#define FIFO_THRESHOLD 0xFE
#define DMA_FIFO_THRESHOLD 0x7
#define BYTES_PER_WORD 0x4
/* Sampling rate as per IEC60958 Ver 3 */
#define CH_STATUS_MAP_32KHZ 0x3
#define CH_STATUS_MAP_44KHZ 0x0
#define CH_STATUS_MAP_48KHZ 0x2
#define CH_STATUS_MAP_88KHZ 0x8
#define CH_STATUS_MAP_96KHZ 0xA
#define CH_STATUS_MAP_176KHZ 0xC
#define CH_STATUS_MAP_192KHZ 0xE
#define MAX_SMPL_WIDTH_20 0x0
#define MAX_SMPL_WIDTH_24 0x1
#define SMPL_WIDTH_16BITS 0x1
#define SMPL_WIDTH_24BITS 0x5
#define CHANNEL_ALLOCATION 0x1F
#define MASK_BYTE0 0x000000FF
#define VALID_DIP_WORDS 3
#define LAYOUT0 0
#define LAYOUT1 1
#define SWAP_LFE_CENTER 0x00fac4c8
#define AUD_CONFIG_CH_MASK 0x70
struct pcm_stream_info {
int str_id;
struct snd_pcm_substream *had_substream;
u32 buffer_ptr;
u64 buffer_rendered;
u32 ring_buf_size;
int sfreq;
};
struct ring_buf_info {
u32 buf_addr;
u32 buf_size;
u8 is_valid;
};
struct had_stream_pvt {
enum had_stream_status stream_status;
int stream_ops;
ssize_t dbg_cum_bytes;
};
struct had_stream_data {
enum had_status_stream stream_type;
};
/**
* struct snd_intelhad - intelhad driver structure
*
* @card: ptr to hold card details
* @drv_status: driver status
* @buf_info: ring buffer info
* @stream_info: stream information
* @eld: holds ELD info
* @curr_buf: pointer to hold current active ring buf
* @valid_buf_cnt: ring buffer count for stream
* @had_spinlock: driver lock
* @aes_bits: IEC958 status bits
* @buff_done: id of current buffer done intr
* @dev: platoform device handle
* @chmap: holds channel map info
* @underrun_count: PCM stream underrun counter
*/
struct snd_intelhad {
struct snd_card *card;
enum had_drv_status drv_status;
struct ring_buf_info buf_info[HAD_NUM_OF_RING_BUFS];
struct pcm_stream_info stream_info;
union otm_hdmi_eld_t eld;
bool dp_output;
enum intel_had_aud_buf_type curr_buf;
int valid_buf_cnt;
unsigned int aes_bits;
struct had_stream_data stream_data;
spinlock_t had_spinlock;
enum intel_had_aud_buf_type buff_done;
struct device *dev;
struct snd_pcm_chmap *chmap;
int underrun_count;
enum hdmi_connector_status state;
int tmds_clock_speed;
int link_rate;
/* internal stuff */
int irq;
void __iomem *mmio_start;
unsigned int had_config_offset;
struct work_struct hdmi_audio_wq;
struct mutex mutex; /* for protecting chmap, state and eld */
};
#endif /* _INTEL_HDMI_AUDIO_ */
|
