2 * Copyright 2014 Advanced Micro Devices, Inc.
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:
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
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.
22 * Authors: Slava Grigorev <slava.grigorev@amd.com>
26 #include <drm/drm_crtc.h>
29 #include "radeon_audio.h"
31 void r600_audio_enable(struct radeon_device *rdev, struct r600_audio_pin *pin,
33 void dce6_audio_enable(struct radeon_device *rdev, struct r600_audio_pin *pin,
35 u32 dce6_endpoint_rreg(struct radeon_device *rdev, u32 offset, u32 reg);
36 void dce6_endpoint_wreg(struct radeon_device *rdev,
37 u32 offset, u32 reg, u32 v);
38 void dce3_2_afmt_write_sad_regs(struct drm_encoder *encoder,
39 struct cea_sad *sads, int sad_count);
40 void evergreen_hdmi_write_sad_regs(struct drm_encoder *encoder,
41 struct cea_sad *sads, int sad_count);
42 void dce6_afmt_write_sad_regs(struct drm_encoder *encoder,
43 struct cea_sad *sads, int sad_count);
44 void dce3_2_afmt_hdmi_write_speaker_allocation(struct drm_encoder *encoder,
45 u8 *sadb, int sad_count);
46 void dce3_2_afmt_dp_write_speaker_allocation(struct drm_encoder *encoder,
47 u8 *sadb, int sad_count);
48 void dce4_afmt_hdmi_write_speaker_allocation(struct drm_encoder *encoder,
49 u8 *sadb, int sad_count);
50 void dce4_afmt_dp_write_speaker_allocation(struct drm_encoder *encoder,
51 u8 *sadb, int sad_count);
52 void dce6_afmt_hdmi_write_speaker_allocation(struct drm_encoder *encoder,
53 u8 *sadb, int sad_count);
54 void dce6_afmt_dp_write_speaker_allocation(struct drm_encoder *encoder,
55 u8 *sadb, int sad_count);
57 static const u32 pin_offsets[7] =
68 static u32 radeon_audio_rreg(struct radeon_device *rdev, u32 offset, u32 reg)
73 static void radeon_audio_wreg(struct radeon_device *rdev, u32 offset,
79 static struct radeon_audio_basic_funcs dce32_funcs = {
80 .endpoint_rreg = radeon_audio_rreg,
81 .endpoint_wreg = radeon_audio_wreg,
84 static struct radeon_audio_basic_funcs dce4_funcs = {
85 .endpoint_rreg = radeon_audio_rreg,
86 .endpoint_wreg = radeon_audio_wreg,
89 static struct radeon_audio_basic_funcs dce6_funcs = {
90 .endpoint_rreg = dce6_endpoint_rreg,
91 .endpoint_wreg = dce6_endpoint_wreg,
94 static struct radeon_audio_funcs dce32_hdmi_funcs = {
95 .write_sad_regs = dce3_2_afmt_write_sad_regs,
96 .write_speaker_allocation = dce3_2_afmt_hdmi_write_speaker_allocation,
99 static struct radeon_audio_funcs dce32_dp_funcs = {
100 .write_sad_regs = dce3_2_afmt_write_sad_regs,
101 .write_speaker_allocation = dce3_2_afmt_dp_write_speaker_allocation,
104 static struct radeon_audio_funcs dce4_hdmi_funcs = {
105 .write_sad_regs = evergreen_hdmi_write_sad_regs,
106 .write_speaker_allocation = dce4_afmt_hdmi_write_speaker_allocation,
109 static struct radeon_audio_funcs dce4_dp_funcs = {
110 .write_sad_regs = evergreen_hdmi_write_sad_regs,
111 .write_speaker_allocation = dce4_afmt_dp_write_speaker_allocation,
114 static struct radeon_audio_funcs dce6_hdmi_funcs = {
115 .write_sad_regs = dce6_afmt_write_sad_regs,
116 .write_speaker_allocation = dce6_afmt_hdmi_write_speaker_allocation,
119 static struct radeon_audio_funcs dce6_dp_funcs = {
120 .write_sad_regs = dce6_afmt_write_sad_regs,
121 .write_speaker_allocation = dce6_afmt_dp_write_speaker_allocation,
124 static void radeon_audio_interface_init(struct radeon_device *rdev)
126 if (ASIC_IS_DCE6(rdev)) {
127 rdev->audio.funcs = &dce6_funcs;
128 rdev->audio.hdmi_funcs = &dce6_hdmi_funcs;
129 rdev->audio.dp_funcs = &dce6_dp_funcs;
130 } else if (ASIC_IS_DCE4(rdev)) {
131 rdev->audio.funcs = &dce4_funcs;
132 rdev->audio.hdmi_funcs = &dce4_hdmi_funcs;
133 rdev->audio.dp_funcs = &dce4_dp_funcs;
135 rdev->audio.funcs = &dce32_funcs;
136 rdev->audio.hdmi_funcs = &dce32_hdmi_funcs;
137 rdev->audio.dp_funcs = &dce32_dp_funcs;
141 static int radeon_audio_chipset_supported(struct radeon_device *rdev)
143 return ASIC_IS_DCE2(rdev) && !ASIC_IS_NODCE(rdev);
146 int radeon_audio_init(struct radeon_device *rdev)
150 if (!radeon_audio || !radeon_audio_chipset_supported(rdev))
153 rdev->audio.enabled = true;
155 if (ASIC_IS_DCE83(rdev)) /* KB: 2 streams, 3 endpoints */
156 rdev->audio.num_pins = 3;
157 else if (ASIC_IS_DCE81(rdev)) /* KV: 4 streams, 7 endpoints */
158 rdev->audio.num_pins = 7;
159 else if (ASIC_IS_DCE8(rdev)) /* BN/HW: 6 streams, 7 endpoints */
160 rdev->audio.num_pins = 7;
161 else if (ASIC_IS_DCE64(rdev)) /* OL: 2 streams, 2 endpoints */
162 rdev->audio.num_pins = 2;
163 else if (ASIC_IS_DCE61(rdev)) /* TN: 4 streams, 6 endpoints */
164 rdev->audio.num_pins = 6;
165 else if (ASIC_IS_DCE6(rdev)) /* SI: 6 streams, 6 endpoints */
166 rdev->audio.num_pins = 6;
168 rdev->audio.num_pins = 1;
170 for (i = 0; i < rdev->audio.num_pins; i++) {
171 rdev->audio.pin[i].channels = -1;
172 rdev->audio.pin[i].rate = -1;
173 rdev->audio.pin[i].bits_per_sample = -1;
174 rdev->audio.pin[i].status_bits = 0;
175 rdev->audio.pin[i].category_code = 0;
176 rdev->audio.pin[i].connected = false;
177 rdev->audio.pin[i].offset = pin_offsets[i];
178 rdev->audio.pin[i].id = i;
181 radeon_audio_interface_init(rdev);
183 /* disable audio. it will be set up later */
184 for (i = 0; i < rdev->audio.num_pins; i++)
185 if (ASIC_IS_DCE6(rdev))
186 dce6_audio_enable(rdev, &rdev->audio.pin[i], false);
188 r600_audio_enable(rdev, &rdev->audio.pin[i], false);
193 void radeon_audio_detect(struct drm_connector *connector,
194 enum drm_connector_status status)
196 if (!connector || !connector->encoder)
199 if (status == connector_status_connected) {
201 struct radeon_device *rdev = connector->encoder->dev->dev_private;
202 struct radeon_connector *radeon_connector;
203 struct radeon_encoder *radeon_encoder =
204 to_radeon_encoder(connector->encoder);
206 if (!drm_detect_monitor_audio(radeon_connector_edid(connector))) {
207 radeon_encoder->audio = 0;
211 radeon_connector = to_radeon_connector(connector);
212 sink_type = radeon_dp_getsinktype(radeon_connector);
214 if (connector->connector_type == DRM_MODE_CONNECTOR_DisplayPort &&
215 sink_type == CONNECTOR_OBJECT_ID_DISPLAYPORT)
216 radeon_encoder->audio = rdev->audio.dp_funcs;
218 radeon_encoder->audio = rdev->audio.hdmi_funcs;
219 /* TODO: set up the sads, etc. and set the audio enable_mask */
221 /* TODO: reset the audio enable_mask */
225 u32 radeon_audio_endpoint_rreg(struct radeon_device *rdev, u32 offset, u32 reg)
227 if (rdev->audio.funcs->endpoint_rreg)
228 return rdev->audio.funcs->endpoint_rreg(rdev, offset, reg);
233 void radeon_audio_endpoint_wreg(struct radeon_device *rdev, u32 offset,
236 if (rdev->audio.funcs->endpoint_wreg)
237 rdev->audio.funcs->endpoint_wreg(rdev, offset, reg, v);
240 void radeon_audio_write_sad_regs(struct drm_encoder *encoder)
242 struct radeon_encoder *radeon_encoder;
243 struct drm_connector *connector;
244 struct radeon_connector *radeon_connector = NULL;
245 struct cea_sad *sads;
248 list_for_each_entry(connector,
249 &encoder->dev->mode_config.connector_list, head) {
250 if (connector->encoder == encoder) {
251 radeon_connector = to_radeon_connector(connector);
256 if (!radeon_connector) {
257 DRM_ERROR("Couldn't find encoder's connector\n");
261 sad_count = drm_edid_to_sad(radeon_connector_edid(connector), &sads);
262 if (sad_count <= 0) {
263 DRM_ERROR("Couldn't read SADs: %d\n", sad_count);
268 radeon_encoder = to_radeon_encoder(encoder);
270 if (radeon_encoder->audio && radeon_encoder->audio->write_sad_regs)
271 radeon_encoder->audio->write_sad_regs(encoder, sads, sad_count);
276 void radeon_audio_write_speaker_allocation(struct drm_encoder *encoder)
278 struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
279 struct drm_connector *connector;
280 struct radeon_connector *radeon_connector = NULL;
284 list_for_each_entry(connector,
285 &encoder->dev->mode_config.connector_list, head) {
286 if (connector->encoder == encoder) {
287 radeon_connector = to_radeon_connector(connector);
292 if (!radeon_connector) {
293 DRM_ERROR("Couldn't find encoder's connector\n");
297 sad_count = drm_edid_to_speaker_allocation(
298 radeon_connector_edid(connector), &sadb);
300 DRM_DEBUG("Couldn't read Speaker Allocation Data Block: %d\n",
305 if (radeon_encoder->audio && radeon_encoder->audio->write_speaker_allocation)
306 radeon_encoder->audio->write_speaker_allocation(encoder, sadb, sad_count);