1/*
2 * Copyright 2013 Advanced Micro Devices, Inc.
3 * Copyright 2014 Rafał Miłecki
4 *
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the "Software"),
7 * to deal in the Software without restriction, including without limitation
8 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
9 * and/or sell copies of the Software, and to permit persons to whom the
10 * Software is furnished to do so, subject to the following conditions:
11 *
12 * The above copyright notice and this permission notice shall be included in
13 * all copies or substantial portions of the Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
19 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
20 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
21 * OTHER DEALINGS IN THE SOFTWARE.
22 */
23#include <linux/hdmi.h>
24#include <drm/drmP.h>
25#include "radeon.h"
26#include "radeon_asic.h"
27#include "radeon_audio.h"
28#include "r600d.h"
29
30void dce3_2_afmt_hdmi_write_speaker_allocation(struct drm_encoder *encoder,
31 u8 *sadb, int sad_count)
32{
33 struct radeon_device *rdev = encoder->dev->dev_private;
34 u32 tmp;
35
36 /* program the speaker allocation */
37 tmp = RREG32_ENDPOINT(0, AZ_F0_CODEC_PIN0_CONTROL_CHANNEL_SPEAKER);
38 tmp &= ~(DP_CONNECTION | SPEAKER_ALLOCATION_MASK);
39 /* set HDMI mode */
40 tmp |= HDMI_CONNECTION;
41 if (sad_count)
42 tmp |= SPEAKER_ALLOCATION(sadb[0]);
43 else
44 tmp |= SPEAKER_ALLOCATION(5); /* stereo */
45 WREG32_ENDPOINT(0, AZ_F0_CODEC_PIN0_CONTROL_CHANNEL_SPEAKER, tmp);
46}
47
48void dce3_2_afmt_dp_write_speaker_allocation(struct drm_encoder *encoder,
49 u8 *sadb, int sad_count)
50{
51 struct radeon_device *rdev = encoder->dev->dev_private;
52 u32 tmp;
53
54 /* program the speaker allocation */
55 tmp = RREG32_ENDPOINT(0, AZ_F0_CODEC_PIN0_CONTROL_CHANNEL_SPEAKER);
56 tmp &= ~(HDMI_CONNECTION | SPEAKER_ALLOCATION_MASK);
57 /* set DP mode */
58 tmp |= DP_CONNECTION;
59 if (sad_count)
60 tmp |= SPEAKER_ALLOCATION(sadb[0]);
61 else
62 tmp |= SPEAKER_ALLOCATION(5); /* stereo */
63 WREG32_ENDPOINT(0, AZ_F0_CODEC_PIN0_CONTROL_CHANNEL_SPEAKER, tmp);
64}
65
66void dce3_2_afmt_write_sad_regs(struct drm_encoder *encoder,
67 struct cea_sad *sads, int sad_count)
68{
69 int i;
70 struct radeon_device *rdev = encoder->dev->dev_private;
71 static const u16 eld_reg_to_type[][2] = {
72 { AZ_F0_CODEC_PIN0_CONTROL_AUDIO_DESCRIPTOR0, HDMI_AUDIO_CODING_TYPE_PCM },
73 { AZ_F0_CODEC_PIN0_CONTROL_AUDIO_DESCRIPTOR1, HDMI_AUDIO_CODING_TYPE_AC3 },
74 { AZ_F0_CODEC_PIN0_CONTROL_AUDIO_DESCRIPTOR2, HDMI_AUDIO_CODING_TYPE_MPEG1 },
75 { AZ_F0_CODEC_PIN0_CONTROL_AUDIO_DESCRIPTOR3, HDMI_AUDIO_CODING_TYPE_MP3 },
76 { AZ_F0_CODEC_PIN0_CONTROL_AUDIO_DESCRIPTOR4, HDMI_AUDIO_CODING_TYPE_MPEG2 },
77 { AZ_F0_CODEC_PIN0_CONTROL_AUDIO_DESCRIPTOR5, HDMI_AUDIO_CODING_TYPE_AAC_LC },
78 { AZ_F0_CODEC_PIN0_CONTROL_AUDIO_DESCRIPTOR6, HDMI_AUDIO_CODING_TYPE_DTS },
79 { AZ_F0_CODEC_PIN0_CONTROL_AUDIO_DESCRIPTOR7, HDMI_AUDIO_CODING_TYPE_ATRAC },
80 { AZ_F0_CODEC_PIN0_CONTROL_AUDIO_DESCRIPTOR9, HDMI_AUDIO_CODING_TYPE_EAC3 },
81 { AZ_F0_CODEC_PIN0_CONTROL_AUDIO_DESCRIPTOR10, HDMI_AUDIO_CODING_TYPE_DTS_HD },
82 { AZ_F0_CODEC_PIN0_CONTROL_AUDIO_DESCRIPTOR11, HDMI_AUDIO_CODING_TYPE_MLP },
83 { AZ_F0_CODEC_PIN0_CONTROL_AUDIO_DESCRIPTOR13, HDMI_AUDIO_CODING_TYPE_WMA_PRO },
84 };
85
86 for (i = 0; i < ARRAY_SIZE(eld_reg_to_type); i++) {
87 u32 value = 0;
88 u8 stereo_freqs = 0;
89 int max_channels = -1;
90 int j;
91
92 for (j = 0; j < sad_count; j++) {
93 struct cea_sad *sad = &sads[j];
94
95 if (sad->format == eld_reg_to_type[i][1]) {
96 if (sad->channels > max_channels) {
97 value = MAX_CHANNELS(sad->channels) |
98 DESCRIPTOR_BYTE_2(sad->byte2) |
99 SUPPORTED_FREQUENCIES(sad->freq);
100 max_channels = sad->channels;
101 }
102
103 if (sad->format == HDMI_AUDIO_CODING_TYPE_PCM)
104 stereo_freqs |= sad->freq;
105 else
106 break;
107 }
108 }
109
110 value |= SUPPORTED_FREQUENCIES_STEREO(stereo_freqs);
111
112 WREG32_ENDPOINT(0, eld_reg_to_type[i][0], value);
113 }
114}
115
116void dce3_2_audio_set_dto(struct radeon_device *rdev,
117 struct radeon_crtc *crtc, unsigned int clock)
118{
119 struct radeon_encoder *radeon_encoder;
120 struct radeon_encoder_atom_dig *dig;
121 unsigned int max_ratio = clock / 24000;
122 u32 dto_phase;
123 u32 wallclock_ratio;
124 u32 dto_cntl;
125
126 if (!crtc)
127 return;
128
129 radeon_encoder = to_radeon_encoder(crtc->encoder);
130 dig = radeon_encoder->enc_priv;
131
132 if (!dig)
133 return;
134
135 if (max_ratio >= 8) {
136 dto_phase = 192 * 1000;
137 wallclock_ratio = 3;
138 } else if (max_ratio >= 4) {
139 dto_phase = 96 * 1000;
140 wallclock_ratio = 2;
141 } else if (max_ratio >= 2) {
142 dto_phase = 48 * 1000;
143 wallclock_ratio = 1;
144 } else {
145 dto_phase = 24 * 1000;
146 wallclock_ratio = 0;
147 }
148
149 /* Express [24MHz / target pixel clock] as an exact rational
150 * number (coefficient of two integer numbers. DCCG_AUDIO_DTOx_PHASE
151 * is the numerator, DCCG_AUDIO_DTOx_MODULE is the denominator
152 */
153 if (dig->dig_encoder == 0) {
154 dto_cntl = RREG32(DCCG_AUDIO_DTO0_CNTL) & ~DCCG_AUDIO_DTO_WALLCLOCK_RATIO_MASK;
155 dto_cntl |= DCCG_AUDIO_DTO_WALLCLOCK_RATIO(wallclock_ratio);
156 WREG32(DCCG_AUDIO_DTO0_CNTL, dto_cntl);
157 WREG32(DCCG_AUDIO_DTO0_PHASE, dto_phase);
158 WREG32(DCCG_AUDIO_DTO0_MODULE, clock);
159 WREG32(DCCG_AUDIO_DTO_SELECT, 0); /* select DTO0 */
160 } else {
161 dto_cntl = RREG32(DCCG_AUDIO_DTO1_CNTL) & ~DCCG_AUDIO_DTO_WALLCLOCK_RATIO_MASK;
162 dto_cntl |= DCCG_AUDIO_DTO_WALLCLOCK_RATIO(wallclock_ratio);
163 WREG32(DCCG_AUDIO_DTO1_CNTL, dto_cntl);
164 WREG32(DCCG_AUDIO_DTO1_PHASE, dto_phase);
165 WREG32(DCCG_AUDIO_DTO1_MODULE, clock);
166 WREG32(DCCG_AUDIO_DTO_SELECT, 1); /* select DTO1 */
167 }
168}
169
170void dce3_2_hdmi_update_acr(struct drm_encoder *encoder, long offset,
171 const struct radeon_hdmi_acr *acr)
172{
173 struct drm_device *dev = encoder->dev;
174 struct radeon_device *rdev = dev->dev_private;
175
176 WREG32(DCE3_HDMI0_ACR_PACKET_CONTROL + offset,
177 HDMI0_ACR_SOURCE | /* select SW CTS value */
178 HDMI0_ACR_AUTO_SEND); /* allow hw to sent ACR packets when required */
179
180 WREG32_P(HDMI0_ACR_32_0 + offset,
181 HDMI0_ACR_CTS_32(acr->cts_32khz),
182 ~HDMI0_ACR_CTS_32_MASK);
183 WREG32_P(HDMI0_ACR_32_1 + offset,
184 HDMI0_ACR_N_32(acr->n_32khz),
185 ~HDMI0_ACR_N_32_MASK);
186
187 WREG32_P(HDMI0_ACR_44_0 + offset,
188 HDMI0_ACR_CTS_44(acr->cts_44_1khz),
189 ~HDMI0_ACR_CTS_44_MASK);
190 WREG32_P(HDMI0_ACR_44_1 + offset,
191 HDMI0_ACR_N_44(acr->n_44_1khz),
192 ~HDMI0_ACR_N_44_MASK);
193
194 WREG32_P(HDMI0_ACR_48_0 + offset,
195 HDMI0_ACR_CTS_48(acr->cts_48khz),
196 ~HDMI0_ACR_CTS_48_MASK);
197 WREG32_P(HDMI0_ACR_48_1 + offset,
198 HDMI0_ACR_N_48(acr->n_48khz),
199 ~HDMI0_ACR_N_48_MASK);
200}
201
202void dce3_2_set_audio_packet(struct drm_encoder *encoder, u32 offset)
203{
204 struct drm_device *dev = encoder->dev;
205 struct radeon_device *rdev = dev->dev_private;
206
207 WREG32(HDMI0_AUDIO_PACKET_CONTROL + offset,
208 HDMI0_AUDIO_DELAY_EN(1) | /* default audio delay */
209 HDMI0_AUDIO_PACKETS_PER_LINE(3)); /* should be suffient for all audio modes and small enough for all hblanks */
210
211 WREG32(AFMT_AUDIO_PACKET_CONTROL + offset,
212 AFMT_AUDIO_SAMPLE_SEND | /* send audio packets */
213 AFMT_60958_CS_UPDATE); /* allow 60958 channel status fields to be updated */
214
215 WREG32_OR(HDMI0_INFOFRAME_CONTROL0 + offset,
216 HDMI0_AUDIO_INFO_SEND | /* enable audio info frames (frames won't be set until audio is enabled) */
217 HDMI0_AUDIO_INFO_CONT); /* send audio info frames every frame/field */
218
219 WREG32_OR(HDMI0_INFOFRAME_CONTROL1 + offset,
220 HDMI0_AUDIO_INFO_LINE(2)); /* anything other than 0 */
221}
222
223void dce3_2_set_mute(struct drm_encoder *encoder, u32 offset, bool mute)
224{
225 struct drm_device *dev = encoder->dev;
226 struct radeon_device *rdev = dev->dev_private;
227
228 if (mute)
229 WREG32_OR(HDMI0_GC + offset, HDMI0_GC_AVMUTE);
230 else
231 WREG32_AND(HDMI0_GC + offset, ~HDMI0_GC_AVMUTE);
232}
233