drm/radeon/audio: write audio/video latency info for DCE4/5
[linux-2.6-block.git] / drivers / gpu / drm / radeon / dce6_afmt.c
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1/*
2 * Copyright 2013 Advanced Micro Devices, Inc.
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
13 *
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20 * OTHER DEALINGS IN THE SOFTWARE.
21 *
22 */
23#include <linux/hdmi.h>
24#include <drm/drmP.h>
25#include "radeon.h"
26#include "sid.h"
27
28static u32 dce6_endpoint_rreg(struct radeon_device *rdev,
29 u32 block_offset, u32 reg)
30{
0a5b7b0b 31 unsigned long flags;
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32 u32 r;
33
0a5b7b0b 34 spin_lock_irqsave(&rdev->end_idx_lock, flags);
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35 WREG32(AZ_F0_CODEC_ENDPOINT_INDEX + block_offset, reg);
36 r = RREG32(AZ_F0_CODEC_ENDPOINT_DATA + block_offset);
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37 spin_unlock_irqrestore(&rdev->end_idx_lock, flags);
38
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39 return r;
40}
41
42static void dce6_endpoint_wreg(struct radeon_device *rdev,
43 u32 block_offset, u32 reg, u32 v)
44{
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45 unsigned long flags;
46
47 spin_lock_irqsave(&rdev->end_idx_lock, flags);
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48 if (ASIC_IS_DCE8(rdev))
49 WREG32(AZ_F0_CODEC_ENDPOINT_INDEX + block_offset, reg);
50 else
51 WREG32(AZ_F0_CODEC_ENDPOINT_INDEX + block_offset,
52 AZ_ENDPOINT_REG_WRITE_EN | AZ_ENDPOINT_REG_INDEX(reg));
53 WREG32(AZ_F0_CODEC_ENDPOINT_DATA + block_offset, v);
0a5b7b0b 54 spin_unlock_irqrestore(&rdev->end_idx_lock, flags);
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55}
56
57#define RREG32_ENDPOINT(block, reg) dce6_endpoint_rreg(rdev, (block), (reg))
58#define WREG32_ENDPOINT(block, reg, v) dce6_endpoint_wreg(rdev, (block), (reg), (v))
59
60
61static void dce6_afmt_get_connected_pins(struct radeon_device *rdev)
62{
63 int i;
64 u32 offset, tmp;
65
66 for (i = 0; i < rdev->audio.num_pins; i++) {
67 offset = rdev->audio.pin[i].offset;
68 tmp = RREG32_ENDPOINT(offset,
69 AZ_F0_CODEC_PIN_CONTROL_RESPONSE_CONFIGURATION_DEFAULT);
70 if (((tmp & PORT_CONNECTIVITY_MASK) >> PORT_CONNECTIVITY_SHIFT) == 1)
71 rdev->audio.pin[i].connected = false;
72 else
73 rdev->audio.pin[i].connected = true;
74 }
75}
76
77struct r600_audio_pin *dce6_audio_get_pin(struct radeon_device *rdev)
78{
79 int i;
80
81 dce6_afmt_get_connected_pins(rdev);
82
83 for (i = 0; i < rdev->audio.num_pins; i++) {
84 if (rdev->audio.pin[i].connected)
85 return &rdev->audio.pin[i];
86 }
87 DRM_ERROR("No connected audio pins found!\n");
88 return NULL;
89}
90
91void dce6_afmt_select_pin(struct drm_encoder *encoder)
92{
93 struct radeon_device *rdev = encoder->dev->dev_private;
94 struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
95 struct radeon_encoder_atom_dig *dig = radeon_encoder->enc_priv;
96 u32 offset = dig->afmt->offset;
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97
98 if (!dig->afmt->pin)
99 return;
100
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101 WREG32(AFMT_AUDIO_SRC_CONTROL + offset,
102 AFMT_AUDIO_SRC_SELECT(dig->afmt->pin->id));
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103}
104
6159b65a 105void dce6_afmt_write_speaker_allocation(struct drm_encoder *encoder)
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106{
107 struct radeon_device *rdev = encoder->dev->dev_private;
108 struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
109 struct radeon_encoder_atom_dig *dig = radeon_encoder->enc_priv;
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110 struct drm_connector *connector;
111 struct radeon_connector *radeon_connector = NULL;
b530602f 112 u32 offset, tmp;
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113 u8 *sadb;
114 int sad_count;
115
116 if (!dig->afmt->pin)
117 return;
118
119 offset = dig->afmt->pin->offset;
120
121 list_for_each_entry(connector, &encoder->dev->mode_config.connector_list, head) {
122 if (connector->encoder == encoder)
123 radeon_connector = to_radeon_connector(connector);
124 }
125
126 if (!radeon_connector) {
127 DRM_ERROR("Couldn't find encoder's connector\n");
128 return;
129 }
130
131 sad_count = drm_edid_to_speaker_allocation(radeon_connector->edid, &sadb);
132 if (sad_count < 0) {
133 DRM_ERROR("Couldn't read Speaker Allocation Data Block: %d\n", sad_count);
134 return;
135 }
136
137 /* program the speaker allocation */
138 tmp = RREG32_ENDPOINT(offset, AZ_F0_CODEC_PIN_CONTROL_CHANNEL_SPEAKER);
139 tmp &= ~(DP_CONNECTION | SPEAKER_ALLOCATION_MASK);
140 /* set HDMI mode */
141 tmp |= HDMI_CONNECTION;
142 if (sad_count)
143 tmp |= SPEAKER_ALLOCATION(sadb[0]);
144 else
145 tmp |= SPEAKER_ALLOCATION(5); /* stereo */
146 WREG32_ENDPOINT(offset, AZ_F0_CODEC_PIN_CONTROL_CHANNEL_SPEAKER, tmp);
147
148 kfree(sadb);
149}
150
151void dce6_afmt_write_sad_regs(struct drm_encoder *encoder)
152{
153 struct radeon_device *rdev = encoder->dev->dev_private;
154 struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
155 struct radeon_encoder_atom_dig *dig = radeon_encoder->enc_priv;
156 u32 offset;
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157 struct drm_connector *connector;
158 struct radeon_connector *radeon_connector = NULL;
159 struct cea_sad *sads;
6159b65a 160 int i, sad_count;
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161
162 static const u16 eld_reg_to_type[][2] = {
163 { AZ_F0_CODEC_PIN_CONTROL_AUDIO_DESCRIPTOR0, HDMI_AUDIO_CODING_TYPE_PCM },
164 { AZ_F0_CODEC_PIN_CONTROL_AUDIO_DESCRIPTOR1, HDMI_AUDIO_CODING_TYPE_AC3 },
165 { AZ_F0_CODEC_PIN_CONTROL_AUDIO_DESCRIPTOR2, HDMI_AUDIO_CODING_TYPE_MPEG1 },
166 { AZ_F0_CODEC_PIN_CONTROL_AUDIO_DESCRIPTOR3, HDMI_AUDIO_CODING_TYPE_MP3 },
167 { AZ_F0_CODEC_PIN_CONTROL_AUDIO_DESCRIPTOR4, HDMI_AUDIO_CODING_TYPE_MPEG2 },
168 { AZ_F0_CODEC_PIN_CONTROL_AUDIO_DESCRIPTOR5, HDMI_AUDIO_CODING_TYPE_AAC_LC },
169 { AZ_F0_CODEC_PIN_CONTROL_AUDIO_DESCRIPTOR6, HDMI_AUDIO_CODING_TYPE_DTS },
170 { AZ_F0_CODEC_PIN_CONTROL_AUDIO_DESCRIPTOR7, HDMI_AUDIO_CODING_TYPE_ATRAC },
171 { AZ_F0_CODEC_PIN_CONTROL_AUDIO_DESCRIPTOR9, HDMI_AUDIO_CODING_TYPE_EAC3 },
172 { AZ_F0_CODEC_PIN_CONTROL_AUDIO_DESCRIPTOR10, HDMI_AUDIO_CODING_TYPE_DTS_HD },
173 { AZ_F0_CODEC_PIN_CONTROL_AUDIO_DESCRIPTOR11, HDMI_AUDIO_CODING_TYPE_MLP },
174 { AZ_F0_CODEC_PIN_CONTROL_AUDIO_DESCRIPTOR13, HDMI_AUDIO_CODING_TYPE_WMA_PRO },
175 };
176
177 if (!dig->afmt->pin)
178 return;
179
180 offset = dig->afmt->pin->offset;
181
182 list_for_each_entry(connector, &encoder->dev->mode_config.connector_list, head) {
183 if (connector->encoder == encoder)
184 radeon_connector = to_radeon_connector(connector);
185 }
186
187 if (!radeon_connector) {
188 DRM_ERROR("Couldn't find encoder's connector\n");
189 return;
190 }
191
192 sad_count = drm_edid_to_sad(radeon_connector->edid, &sads);
193 if (sad_count < 0) {
194 DRM_ERROR("Couldn't read SADs: %d\n", sad_count);
195 return;
196 }
197 BUG_ON(!sads);
198
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199 for (i = 0; i < ARRAY_SIZE(eld_reg_to_type); i++) {
200 u32 value = 0;
201 int j;
202
203 for (j = 0; j < sad_count; j++) {
204 struct cea_sad *sad = &sads[j];
205
206 if (sad->format == eld_reg_to_type[i][1]) {
207 value = MAX_CHANNELS(sad->channels) |
208 DESCRIPTOR_BYTE_2(sad->byte2) |
209 SUPPORTED_FREQUENCIES(sad->freq);
210 if (sad->format == HDMI_AUDIO_CODING_TYPE_PCM)
211 value |= SUPPORTED_FREQUENCIES_STEREO(sad->freq);
212 break;
213 }
214 }
215 WREG32_ENDPOINT(offset, eld_reg_to_type[i][0], value);
216 }
217
218 kfree(sads);
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219}
220
221static int dce6_audio_chipset_supported(struct radeon_device *rdev)
222{
223 return !ASIC_IS_NODCE(rdev);
224}
225
226static void dce6_audio_enable(struct radeon_device *rdev,
227 struct r600_audio_pin *pin,
228 bool enable)
229{
230 WREG32_ENDPOINT(pin->offset, AZ_F0_CODEC_PIN_CONTROL_HOTPLUG_CONTROL,
231 AUDIO_ENABLED);
232 DRM_INFO("%s audio %d support\n", enable ? "Enabling" : "Disabling", pin->id);
233}
234
235static const u32 pin_offsets[7] =
236{
237 (0x5e00 - 0x5e00),
238 (0x5e18 - 0x5e00),
239 (0x5e30 - 0x5e00),
240 (0x5e48 - 0x5e00),
241 (0x5e60 - 0x5e00),
242 (0x5e78 - 0x5e00),
243 (0x5e90 - 0x5e00),
244};
245
246int dce6_audio_init(struct radeon_device *rdev)
247{
248 int i;
249
250 if (!radeon_audio || !dce6_audio_chipset_supported(rdev))
251 return 0;
252
253 rdev->audio.enabled = true;
254
255 if (ASIC_IS_DCE8(rdev))
256 rdev->audio.num_pins = 7;
257 else
258 rdev->audio.num_pins = 6;
259
260 for (i = 0; i < rdev->audio.num_pins; i++) {
261 rdev->audio.pin[i].channels = -1;
262 rdev->audio.pin[i].rate = -1;
263 rdev->audio.pin[i].bits_per_sample = -1;
264 rdev->audio.pin[i].status_bits = 0;
265 rdev->audio.pin[i].category_code = 0;
266 rdev->audio.pin[i].connected = false;
267 rdev->audio.pin[i].offset = pin_offsets[i];
268 rdev->audio.pin[i].id = i;
269 dce6_audio_enable(rdev, &rdev->audio.pin[i], true);
270 }
271
272 return 0;
273}
274
275void dce6_audio_fini(struct radeon_device *rdev)
276{
277 int i;
278
279 if (!rdev->audio.enabled)
280 return;
281
282 for (i = 0; i < rdev->audio.num_pins; i++)
283 dce6_audio_enable(rdev, &rdev->audio.pin[i], false);
284
285 rdev->audio.enabled = false;
286}