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8e8e69d6 | 1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
287599cf JA |
2 | /* |
3 | * intel_hdmi_lpe_audio.h - Intel HDMI LPE audio driver | |
4 | * | |
5 | * Copyright (C) 2016 Intel Corp | |
6 | * Authors: Sailaja Bandarupalli <sailaja.bandarupalli@intel.com> | |
7 | * Ramesh Babu K V <ramesh.babu@intel.com> | |
8 | * Vaibhav Agarwal <vaibhav.agarwal@intel.com> | |
9 | * Jerome Anand <jerome.anand@intel.com> | |
10 | * Aravind Siddappaji <aravindx.siddappaji@intel.com> | |
11 | * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | |
12 | * | |
287599cf JA |
13 | * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
14 | */ | |
15 | #ifndef __INTEL_HDMI_LPE_AUDIO_H | |
16 | #define __INTEL_HDMI_LPE_AUDIO_H | |
17 | ||
287599cf JA |
18 | #define HAD_MIN_CHANNEL 2 |
19 | #define HAD_MAX_CHANNEL 8 | |
20 | #define HAD_NUM_OF_RING_BUFS 4 | |
21 | ||
e1b239f3 TI |
22 | /* max 20bit address, aligned to 64 */ |
23 | #define HAD_MAX_BUFFER ((1024 * 1024 - 1) & ~0x3f) | |
24 | #define HAD_DEFAULT_BUFFER (600 * 1024) /* default prealloc size */ | |
25 | #define HAD_MAX_PERIODS 256 /* arbitrary, but should suffice */ | |
8d48c016 | 26 | #define HAD_MIN_PERIODS 1 |
e1b239f3 TI |
27 | #define HAD_MAX_PERIOD_BYTES ((HAD_MAX_BUFFER / HAD_MIN_PERIODS) & ~0x3f) |
28 | #define HAD_MIN_PERIOD_BYTES 1024 /* might be smaller */ | |
287599cf JA |
29 | #define HAD_FIFO_SIZE 0 /* fifo not being used */ |
30 | #define MAX_SPEAKERS 8 | |
31 | ||
32 | #define AUD_SAMPLE_RATE_32 32000 | |
33 | #define AUD_SAMPLE_RATE_44_1 44100 | |
34 | #define AUD_SAMPLE_RATE_48 48000 | |
35 | #define AUD_SAMPLE_RATE_88_2 88200 | |
36 | #define AUD_SAMPLE_RATE_96 96000 | |
37 | #define AUD_SAMPLE_RATE_176_4 176400 | |
38 | #define AUD_SAMPLE_RATE_192 192000 | |
39 | ||
40 | #define HAD_MIN_RATE AUD_SAMPLE_RATE_32 | |
41 | #define HAD_MAX_RATE AUD_SAMPLE_RATE_192 | |
42 | ||
43 | #define DIS_SAMPLE_RATE_25_2 25200 | |
44 | #define DIS_SAMPLE_RATE_27 27000 | |
45 | #define DIS_SAMPLE_RATE_54 54000 | |
46 | #define DIS_SAMPLE_RATE_74_25 74250 | |
47 | #define DIS_SAMPLE_RATE_148_5 148500 | |
48 | #define HAD_REG_WIDTH 0x08 | |
287599cf | 49 | #define HAD_MAX_DIP_WORDS 16 |
287599cf | 50 | |
964ca808 PLB |
51 | /* DP Link Rates */ |
52 | #define DP_2_7_GHZ 270000 | |
53 | #define DP_1_62_GHZ 162000 | |
54 | ||
55 | /* Maud Values */ | |
56 | #define AUD_SAMPLE_RATE_32_DP_2_7_MAUD_VAL 1988 | |
57 | #define AUD_SAMPLE_RATE_44_1_DP_2_7_MAUD_VAL 2740 | |
58 | #define AUD_SAMPLE_RATE_48_DP_2_7_MAUD_VAL 2982 | |
59 | #define AUD_SAMPLE_RATE_88_2_DP_2_7_MAUD_VAL 5480 | |
60 | #define AUD_SAMPLE_RATE_96_DP_2_7_MAUD_VAL 5965 | |
61 | #define AUD_SAMPLE_RATE_176_4_DP_2_7_MAUD_VAL 10961 | |
62 | #define HAD_MAX_RATE_DP_2_7_MAUD_VAL 11930 | |
63 | #define AUD_SAMPLE_RATE_32_DP_1_62_MAUD_VAL 3314 | |
64 | #define AUD_SAMPLE_RATE_44_1_DP_1_62_MAUD_VAL 4567 | |
65 | #define AUD_SAMPLE_RATE_48_DP_1_62_MAUD_VAL 4971 | |
66 | #define AUD_SAMPLE_RATE_88_2_DP_1_62_MAUD_VAL 9134 | |
67 | #define AUD_SAMPLE_RATE_96_DP_1_62_MAUD_VAL 9942 | |
68 | #define AUD_SAMPLE_RATE_176_4_DP_1_62_MAUD_VAL 18268 | |
69 | #define HAD_MAX_RATE_DP_1_62_MAUD_VAL 19884 | |
70 | ||
71 | /* Naud Value */ | |
72 | #define DP_NAUD_VAL 32768 | |
73 | ||
287599cf JA |
74 | /* HDMI Controller register offsets - audio domain common */ |
75 | /* Base address for below regs = 0x65000 */ | |
76 | enum hdmi_ctrl_reg_offset_common { | |
03c34377 | 77 | AUDIO_HDMI_CONFIG_A = 0x000, |
287599cf JA |
78 | AUDIO_HDMI_CONFIG_B = 0x800, |
79 | AUDIO_HDMI_CONFIG_C = 0x900, | |
80 | }; | |
81 | /* HDMI controller register offsets */ | |
4151ee84 | 82 | enum hdmi_ctrl_reg_offset { |
287599cf JA |
83 | AUD_CONFIG = 0x0, |
84 | AUD_CH_STATUS_0 = 0x08, | |
85 | AUD_CH_STATUS_1 = 0x0C, | |
86 | AUD_HDMI_CTS = 0x10, | |
87 | AUD_N_ENABLE = 0x14, | |
88 | AUD_SAMPLE_RATE = 0x18, | |
89 | AUD_BUF_CONFIG = 0x20, | |
90 | AUD_BUF_CH_SWAP = 0x24, | |
91 | AUD_BUF_A_ADDR = 0x40, | |
92 | AUD_BUF_A_LENGTH = 0x44, | |
93 | AUD_BUF_B_ADDR = 0x48, | |
94 | AUD_BUF_B_LENGTH = 0x4c, | |
95 | AUD_BUF_C_ADDR = 0x50, | |
96 | AUD_BUF_C_LENGTH = 0x54, | |
97 | AUD_BUF_D_ADDR = 0x58, | |
98 | AUD_BUF_D_LENGTH = 0x5c, | |
99 | AUD_CNTL_ST = 0x60, | |
4151ee84 TI |
100 | AUD_HDMI_STATUS = 0x64, /* v2 */ |
101 | AUD_HDMIW_INFOFR = 0x68, /* v2 */ | |
287599cf JA |
102 | }; |
103 | ||
7ceba75f | 104 | /* Audio configuration */ |
287599cf | 105 | union aud_cfg { |
287599cf JA |
106 | struct { |
107 | u32 aud_en:1; | |
77531bee | 108 | u32 layout:1; /* LAYOUT[01], see below */ |
287599cf JA |
109 | u32 fmt:2; |
110 | u32 num_ch:3; | |
111 | u32 set:1; | |
112 | u32 flat:1; | |
113 | u32 val_bit:1; | |
114 | u32 user_bit:1; | |
77531bee TI |
115 | u32 underrun:1; /* 0: send null packets, |
116 | * 1: send silence stream | |
117 | */ | |
118 | u32 packet_mode:1; /* 0: 32bit container, 1: 16bit */ | |
119 | u32 left_align:1; /* 0: MSB bits 0-23, 1: bits 8-31 */ | |
120 | u32 bogus_sample:1; /* bogus sample for odd channels */ | |
121 | u32 dp_modei:1; /* 0: HDMI, 1: DP */ | |
287599cf | 122 | u32 rsvd:16; |
7ceba75f TI |
123 | } regx; |
124 | u32 regval; | |
287599cf JA |
125 | }; |
126 | ||
03c34377 TI |
127 | #define AUD_CONFIG_VALID_BIT (1 << 9) |
128 | #define AUD_CONFIG_DP_MODE (1 << 15) | |
77531bee TI |
129 | #define AUD_CONFIG_CH_MASK 0x70 |
130 | #define LAYOUT0 0 /* interleaved stereo */ | |
131 | #define LAYOUT1 1 /* for channels > 2 */ | |
03c34377 | 132 | |
7ceba75f | 133 | /* Audio Channel Status 0 Attributes */ |
287599cf JA |
134 | union aud_ch_status_0 { |
135 | struct { | |
136 | u32 ch_status:1; | |
137 | u32 lpcm_id:1; | |
138 | u32 cp_info:1; | |
139 | u32 format:3; | |
140 | u32 mode:2; | |
141 | u32 ctg_code:8; | |
142 | u32 src_num:4; | |
143 | u32 ch_num:4; | |
77531bee | 144 | u32 samp_freq:4; /* CH_STATUS_MAP_XXX */ |
287599cf JA |
145 | u32 clk_acc:2; |
146 | u32 rsvd:2; | |
7ceba75f TI |
147 | } regx; |
148 | u32 regval; | |
287599cf JA |
149 | }; |
150 | ||
77531bee TI |
151 | /* samp_freq values - Sampling rate as per IEC60958 Ver 3 */ |
152 | #define CH_STATUS_MAP_32KHZ 0x3 | |
153 | #define CH_STATUS_MAP_44KHZ 0x0 | |
154 | #define CH_STATUS_MAP_48KHZ 0x2 | |
155 | #define CH_STATUS_MAP_88KHZ 0x8 | |
156 | #define CH_STATUS_MAP_96KHZ 0xA | |
157 | #define CH_STATUS_MAP_176KHZ 0xC | |
158 | #define CH_STATUS_MAP_192KHZ 0xE | |
159 | ||
7ceba75f | 160 | /* Audio Channel Status 1 Attributes */ |
287599cf JA |
161 | union aud_ch_status_1 { |
162 | struct { | |
163 | u32 max_wrd_len:1; | |
164 | u32 wrd_len:3; | |
165 | u32 rsvd:28; | |
7ceba75f TI |
166 | } regx; |
167 | u32 regval; | |
287599cf JA |
168 | }; |
169 | ||
77531bee TI |
170 | #define MAX_SMPL_WIDTH_20 0x0 |
171 | #define MAX_SMPL_WIDTH_24 0x1 | |
172 | #define SMPL_WIDTH_16BITS 0x1 | |
173 | #define SMPL_WIDTH_24BITS 0x5 | |
174 | ||
7ceba75f | 175 | /* CTS register */ |
287599cf | 176 | union aud_hdmi_cts { |
287599cf JA |
177 | struct { |
178 | u32 cts_val:24; | |
179 | u32 en_cts_prog:1; | |
180 | u32 rsvd:7; | |
7ceba75f TI |
181 | } regx; |
182 | u32 regval; | |
287599cf JA |
183 | }; |
184 | ||
7ceba75f | 185 | /* N register */ |
287599cf | 186 | union aud_hdmi_n_enable { |
287599cf JA |
187 | struct { |
188 | u32 n_val:24; | |
189 | u32 en_n_prog:1; | |
190 | u32 rsvd:7; | |
7ceba75f TI |
191 | } regx; |
192 | u32 regval; | |
287599cf JA |
193 | }; |
194 | ||
7ceba75f | 195 | /* Audio Buffer configurations */ |
287599cf | 196 | union aud_buf_config { |
287599cf JA |
197 | struct { |
198 | u32 audio_fifo_watermark:8; | |
199 | u32 dma_fifo_watermark:3; | |
200 | u32 rsvd0:5; | |
201 | u32 aud_delay:8; | |
202 | u32 rsvd1:8; | |
7ceba75f TI |
203 | } regx; |
204 | u32 regval; | |
287599cf JA |
205 | }; |
206 | ||
77531bee TI |
207 | #define FIFO_THRESHOLD 0xFE |
208 | #define DMA_FIFO_THRESHOLD 0x7 | |
209 | ||
7ceba75f | 210 | /* Audio Sample Swapping offset */ |
287599cf JA |
211 | union aud_buf_ch_swap { |
212 | struct { | |
213 | u32 first_0:3; | |
214 | u32 second_0:3; | |
215 | u32 first_1:3; | |
216 | u32 second_1:3; | |
217 | u32 first_2:3; | |
218 | u32 second_2:3; | |
219 | u32 first_3:3; | |
220 | u32 second_3:3; | |
221 | u32 rsvd:8; | |
7ceba75f TI |
222 | } regx; |
223 | u32 regval; | |
287599cf JA |
224 | }; |
225 | ||
77531bee TI |
226 | #define SWAP_LFE_CENTER 0x00fac4c8 /* octal 76543210 */ |
227 | ||
7ceba75f | 228 | /* Address for Audio Buffer */ |
287599cf JA |
229 | union aud_buf_addr { |
230 | struct { | |
231 | u32 valid:1; | |
232 | u32 intr_en:1; | |
233 | u32 rsvd:4; | |
234 | u32 addr:26; | |
7ceba75f TI |
235 | } regx; |
236 | u32 regval; | |
287599cf JA |
237 | }; |
238 | ||
e1b239f3 TI |
239 | #define AUD_BUF_VALID (1U << 0) |
240 | #define AUD_BUF_INTR_EN (1U << 1) | |
241 | ||
7ceba75f | 242 | /* Length of Audio Buffer */ |
287599cf JA |
243 | union aud_buf_len { |
244 | struct { | |
245 | u32 buf_len:20; | |
246 | u32 rsvd:12; | |
7ceba75f TI |
247 | } regx; |
248 | u32 regval; | |
287599cf JA |
249 | }; |
250 | ||
7ceba75f | 251 | /* Audio Control State Register offset */ |
287599cf JA |
252 | union aud_ctrl_st { |
253 | struct { | |
254 | u32 ram_addr:4; | |
255 | u32 eld_ack:1; | |
256 | u32 eld_addr:4; | |
257 | u32 eld_buf_size:5; | |
258 | u32 eld_valid:1; | |
259 | u32 cp_ready:1; | |
260 | u32 dip_freq:2; | |
261 | u32 dip_idx:3; | |
262 | u32 dip_en_sta:4; | |
263 | u32 rsvd:7; | |
7ceba75f TI |
264 | } regx; |
265 | u32 regval; | |
287599cf JA |
266 | }; |
267 | ||
7ceba75f | 268 | /* Audio HDMI Widget Data Island Packet offset */ |
287599cf JA |
269 | union aud_info_frame1 { |
270 | struct { | |
271 | u32 pkt_type:8; | |
272 | u32 ver_num:8; | |
273 | u32 len:5; | |
274 | u32 rsvd:11; | |
7ceba75f TI |
275 | } regx; |
276 | u32 regval; | |
287599cf JA |
277 | }; |
278 | ||
77531bee TI |
279 | #define HDMI_INFO_FRAME_WORD1 0x000a0184 |
280 | #define DP_INFO_FRAME_WORD1 0x00441b84 | |
281 | ||
7ceba75f | 282 | /* DIP frame 2 */ |
287599cf JA |
283 | union aud_info_frame2 { |
284 | struct { | |
285 | u32 chksum:8; | |
286 | u32 chnl_cnt:3; | |
287 | u32 rsvd0:1; | |
288 | u32 coding_type:4; | |
289 | u32 smpl_size:2; | |
290 | u32 smpl_freq:3; | |
291 | u32 rsvd1:3; | |
292 | u32 format:8; | |
7ceba75f TI |
293 | } regx; |
294 | u32 regval; | |
287599cf JA |
295 | }; |
296 | ||
7ceba75f | 297 | /* DIP frame 3 */ |
287599cf JA |
298 | union aud_info_frame3 { |
299 | struct { | |
300 | u32 chnl_alloc:8; | |
301 | u32 rsvd0:3; | |
302 | u32 lsv:4; | |
303 | u32 dm_inh:1; | |
304 | u32 rsvd1:16; | |
7ceba75f TI |
305 | } regx; |
306 | u32 regval; | |
287599cf JA |
307 | }; |
308 | ||
77531bee TI |
309 | #define VALID_DIP_WORDS 3 |
310 | ||
03c34377 TI |
311 | /* AUD_HDMI_STATUS bits */ |
312 | #define HDMI_AUDIO_UNDERRUN (1U << 31) | |
313 | #define HDMI_AUDIO_BUFFER_DONE (1U << 29) | |
287599cf | 314 | |
03c34377 | 315 | /* AUD_HDMI_STATUS register mask */ |
77531bee TI |
316 | #define AUD_HDMI_STATUS_MASK_UNDERRUN 0xC0000000 |
317 | #define AUD_HDMI_STATUS_MASK_SRDBG 0x00000002 | |
318 | #define AUD_HDMI_STATUSG_MASK_FUNCRST 0x00000001 | |
287599cf | 319 | |
287599cf | 320 | #endif |