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5dab11d8 JA |
1 | /* |
2 | * Copyright (C) 2016 Intel Corporation | |
3 | * Authors: Sailaja Bandarupalli <sailaja.bandarupalli@intel.com> | |
4 | * Ramesh Babu K V <ramesh.babu@intel.com> | |
5 | * Vaibhav Agarwal <vaibhav.agarwal@intel.com> | |
6 | * Jerome Anand <jerome.anand@intel.com> | |
7 | * | |
8 | * Permission is hereby granted, free of charge, to any person obtaining | |
9 | * a copy of this software and associated documentation files | |
10 | * (the "Software"), to deal in the Software without restriction, | |
11 | * including without limitation the rights to use, copy, modify, merge, | |
12 | * publish, distribute, sublicense, and/or sell copies of the Software, | |
13 | * and to permit persons to whom the Software is furnished to do so, | |
14 | * subject to the following conditions: | |
15 | * | |
16 | * The above copyright notice and this permission notice (including the | |
17 | * next paragraph) shall be included in all copies or substantial | |
18 | * portions of the Software. | |
19 | * | |
20 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, | |
21 | * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF | |
22 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND | |
23 | * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS | |
24 | * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN | |
25 | * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN | |
26 | * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | |
27 | * SOFTWARE. | |
28 | */ | |
29 | ||
30 | #ifndef _INTEL_HDMI_AUDIO_H_ | |
31 | #define _INTEL_HDMI_AUDIO_H_ | |
32 | ||
5dab11d8 JA |
33 | #include "intel_hdmi_lpe_audio.h" |
34 | ||
5dab11d8 JA |
35 | #define MAX_PB_STREAMS 1 |
36 | #define MAX_CAP_STREAMS 0 | |
5dab11d8 | 37 | #define BYTES_PER_WORD 0x4 |
77531bee TI |
38 | #define INTEL_HAD "HdmiLpeAudio" |
39 | ||
40 | /* | |
41 | * CEA speaker placement: | |
42 | * | |
43 | * FL FLC FC FRC FR | |
44 | * | |
45 | * LFE | |
46 | * | |
47 | * RL RLC RC RRC RR | |
48 | * | |
49 | * The Left/Right Surround channel _notions_ LS/RS in SMPTE 320M | |
50 | * corresponds to CEA RL/RR; The SMPTE channel _assignment_ C/LFE is | |
51 | * swapped to CEA LFE/FC. | |
52 | */ | |
53 | enum cea_speaker_placement { | |
54 | FL = (1 << 0), /* Front Left */ | |
55 | FC = (1 << 1), /* Front Center */ | |
56 | FR = (1 << 2), /* Front Right */ | |
57 | FLC = (1 << 3), /* Front Left Center */ | |
58 | FRC = (1 << 4), /* Front Right Center */ | |
59 | RL = (1 << 5), /* Rear Left */ | |
60 | RC = (1 << 6), /* Rear Center */ | |
61 | RR = (1 << 7), /* Rear Right */ | |
62 | RLC = (1 << 8), /* Rear Left Center */ | |
63 | RRC = (1 << 9), /* Rear Right Center */ | |
64 | LFE = (1 << 10), /* Low Frequency Effect */ | |
65 | }; | |
5dab11d8 | 66 | |
77531bee TI |
67 | struct cea_channel_speaker_allocation { |
68 | int ca_index; | |
69 | int speakers[8]; | |
5dab11d8 | 70 | |
77531bee TI |
71 | /* derived values, just for convenience */ |
72 | int channels; | |
73 | int spk_mask; | |
74 | }; | |
75 | ||
76 | struct channel_map_table { | |
77 | unsigned char map; /* ALSA API channel map position */ | |
78 | unsigned char cea_slot; /* CEA slot value */ | |
79 | int spk_mask; /* speaker position bit mask */ | |
80 | }; | |
5dab11d8 JA |
81 | |
82 | struct pcm_stream_info { | |
313d9f28 | 83 | struct snd_pcm_substream *substream; |
313d9f28 | 84 | int substream_refcount; |
5dab11d8 JA |
85 | }; |
86 | ||
03c34377 | 87 | /* |
5dab11d8 JA |
88 | * struct snd_intelhad - intelhad driver structure |
89 | * | |
90 | * @card: ptr to hold card details | |
91b0cb0c | 91 | * @connected: the monitor connection status |
5dab11d8 | 92 | * @stream_info: stream information |
da864809 | 93 | * @eld: holds ELD info |
5dab11d8 JA |
94 | * @curr_buf: pointer to hold current active ring buf |
95 | * @valid_buf_cnt: ring buffer count for stream | |
96 | * @had_spinlock: driver lock | |
97 | * @aes_bits: IEC958 status bits | |
98 | * @buff_done: id of current buffer done intr | |
1d7a0395 | 99 | * @dev: platform device handle |
5dab11d8 | 100 | * @chmap: holds channel map info |
5dab11d8 JA |
101 | */ |
102 | struct snd_intelhad { | |
b4eb0d52 | 103 | struct snd_intelhad_card *card_ctx; |
91b0cb0c | 104 | bool connected; |
5dab11d8 | 105 | struct pcm_stream_info stream_info; |
df0435db | 106 | unsigned char eld[HDMI_MAX_ELD_BYTES]; |
964ca808 | 107 | bool dp_output; |
5dab11d8 | 108 | unsigned int aes_bits; |
5dab11d8 | 109 | spinlock_t had_spinlock; |
5dab11d8 | 110 | struct device *dev; |
5dab11d8 | 111 | struct snd_pcm_chmap *chmap; |
da864809 TI |
112 | int tmds_clock_speed; |
113 | int link_rate; | |
8a2d6ae1 VS |
114 | int port; /* fixed */ |
115 | int pipe; /* can change dynamically */ | |
da864809 | 116 | |
e1b239f3 TI |
117 | /* ring buffer (BD) position index */ |
118 | unsigned int bd_head; | |
119 | /* PCM buffer position indices */ | |
120 | unsigned int pcmbuf_head; /* being processed */ | |
121 | unsigned int pcmbuf_filled; /* to be filled */ | |
122 | ||
123 | unsigned int num_bds; /* number of BDs */ | |
124 | unsigned int period_bytes; /* PCM period size in bytes */ | |
125 | ||
da864809 | 126 | /* internal stuff */ |
40ce4b5d | 127 | union aud_cfg aud_config; /* AUD_CONFIG reg value cache */ |
da864809 | 128 | struct work_struct hdmi_audio_wq; |
0e9c67d7 | 129 | struct mutex mutex; /* for protecting chmap and eld */ |
b9bacf27 | 130 | struct snd_jack *jack; |
5dab11d8 JA |
131 | }; |
132 | ||
b4eb0d52 VS |
133 | struct snd_intelhad_card { |
134 | struct snd_card *card; | |
135 | struct device *dev; | |
136 | ||
137 | /* internal stuff */ | |
138 | int irq; | |
139 | void __iomem *mmio_start; | |
8a2d6ae1 | 140 | int num_pipes; |
b4eb0d52 | 141 | int num_ports; |
8a2d6ae1 | 142 | struct snd_intelhad pcm_ctx[3]; /* one for each port */ |
b4eb0d52 VS |
143 | }; |
144 | ||
5dab11d8 | 145 | #endif /* _INTEL_HDMI_AUDIO_ */ |