1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
|
// SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause)
//
// This file is provided under a dual BSD/GPLv2 license. When using or
// redistributing this file, you may do so under either license.
//
// Copyright(c) 2018 Intel Corporation. All rights reserved.
//
// Authors: Keyon Jie <yang.jie@linux.intel.com>
//
#include <linux/module.h>
#include <sound/hdaudio_ext.h>
#include <sound/hda_register.h>
#include <sound/hda_codec.h>
#include <sound/hda_i915.h>
#include <sound/sof.h>
#include "../ops.h"
#include "hda.h"
#if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA_AUDIO_CODEC)
#include "../../codecs/hdac_hda.h"
#endif /* CONFIG_SND_SOC_SOF_HDA_AUDIO_CODEC */
#if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA_AUDIO_CODEC)
#define IDISP_VID_INTEL 0x80860000
/* load the legacy HDA codec driver */
#ifdef MODULE
static void hda_codec_load_module(struct hda_codec *codec)
{
char alias[MODULE_NAME_LEN];
const char *module = alias;
snd_hdac_codec_modalias(&codec->core, alias, sizeof(alias));
dev_dbg(&codec->core.dev, "loading codec module: %s\n", module);
request_module(module);
}
#else
static void hda_codec_load_module(struct hda_codec *codec) {}
#endif
/* enable controller wake up event for all codecs with jack connectors */
void hda_codec_jack_wake_enable(struct snd_sof_dev *sdev)
{
struct hda_bus *hbus = sof_to_hbus(sdev);
struct hdac_bus *bus = sof_to_bus(sdev);
struct hda_codec *codec;
unsigned int mask = 0;
list_for_each_codec(codec, hbus)
if (codec->jacktbl.used)
mask |= BIT(codec->core.addr);
snd_hdac_chip_updatew(bus, WAKEEN, STATESTS_INT_MASK, mask);
}
/* check jack status after resuming from suspend mode */
void hda_codec_jack_check(struct snd_sof_dev *sdev)
{
struct hda_bus *hbus = sof_to_hbus(sdev);
struct hdac_bus *bus = sof_to_bus(sdev);
struct hda_codec *codec;
/* disable controller Wake Up event*/
snd_hdac_chip_updatew(bus, WAKEEN, STATESTS_INT_MASK, 0);
list_for_each_codec(codec, hbus)
/*
* Wake up all jack-detecting codecs regardless whether an event
* has been recorded in STATESTS
*/
if (codec->jacktbl.used)
schedule_delayed_work(&codec->jackpoll_work,
codec->jackpoll_interval);
}
#else
void hda_codec_jack_wake_enable(struct snd_sof_dev *sdev) {}
void hda_codec_jack_check(struct snd_sof_dev *sdev) {}
#endif /* CONFIG_SND_SOC_SOF_HDA_AUDIO_CODEC */
EXPORT_SYMBOL(hda_codec_jack_wake_enable);
EXPORT_SYMBOL(hda_codec_jack_check);
/* probe individual codec */
static int hda_codec_probe(struct snd_sof_dev *sdev, int address,
bool hda_codec_use_common_hdmi)
{
#if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA_AUDIO_CODEC)
struct hdac_hda_priv *hda_priv;
#endif
struct hda_bus *hbus = sof_to_hbus(sdev);
struct hdac_device *hdev;
u32 hda_cmd = (address << 28) | (AC_NODE_ROOT << 20) |
(AC_VERB_PARAMETERS << 8) | AC_PAR_VENDOR_ID;
u32 resp = -1;
int ret;
mutex_lock(&hbus->core.cmd_mutex);
snd_hdac_bus_send_cmd(&hbus->core, hda_cmd);
snd_hdac_bus_get_response(&hbus->core, address, &resp);
mutex_unlock(&hbus->core.cmd_mutex);
if (resp == -1)
return -EIO;
dev_dbg(sdev->dev, "HDA codec #%d probed OK: response: %x\n",
address, resp);
#if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA_AUDIO_CODEC)
hda_priv = devm_kzalloc(sdev->dev, sizeof(*hda_priv), GFP_KERNEL);
if (!hda_priv)
return -ENOMEM;
hda_priv->codec.bus = hbus;
hdev = &hda_priv->codec.core;
ret = snd_hdac_ext_bus_device_init(&hbus->core, address, hdev);
if (ret < 0)
return ret;
if ((resp & 0xFFFF0000) == IDISP_VID_INTEL)
hda_priv->need_display_power = true;
/*
* if common HDMI codec driver is not used, codec load
* is skipped here and hdac_hdmi is used instead
*/
if (hda_codec_use_common_hdmi ||
(resp & 0xFFFF0000) != IDISP_VID_INTEL) {
hdev->type = HDA_DEV_LEGACY;
hda_codec_load_module(&hda_priv->codec);
}
return 0;
#else
hdev = devm_kzalloc(sdev->dev, sizeof(*hdev), GFP_KERNEL);
if (!hdev)
return -ENOMEM;
ret = snd_hdac_ext_bus_device_init(&hbus->core, address, hdev);
return ret;
#endif
}
/* Codec initialization */
int hda_codec_probe_bus(struct snd_sof_dev *sdev,
bool hda_codec_use_common_hdmi)
{
struct hdac_bus *bus = sof_to_bus(sdev);
int i, ret;
/* probe codecs in avail slots */
for (i = 0; i < HDA_MAX_CODECS; i++) {
if (!(bus->codec_mask & (1 << i)))
continue;
ret = hda_codec_probe(sdev, i, hda_codec_use_common_hdmi);
if (ret < 0) {
dev_err(bus->dev, "error: codec #%d probe error, ret: %d\n",
i, ret);
return ret;
}
}
return 0;
}
EXPORT_SYMBOL(hda_codec_probe_bus);
#if IS_ENABLED(CONFIG_SND_HDA_CODEC_HDMI) || \
IS_ENABLED(CONFIG_SND_SOC_HDAC_HDMI)
void hda_codec_i915_get(struct snd_sof_dev *sdev)
{
struct hdac_bus *bus = sof_to_bus(sdev);
dev_dbg(bus->dev, "Turning i915 HDAC power on\n");
snd_hdac_display_power(bus, HDA_CODEC_IDX_CONTROLLER, true);
}
EXPORT_SYMBOL(hda_codec_i915_get);
void hda_codec_i915_put(struct snd_sof_dev *sdev)
{
struct hdac_bus *bus = sof_to_bus(sdev);
dev_dbg(bus->dev, "Turning i915 HDAC power off\n");
snd_hdac_display_power(bus, HDA_CODEC_IDX_CONTROLLER, false);
}
EXPORT_SYMBOL(hda_codec_i915_put);
int hda_codec_i915_init(struct snd_sof_dev *sdev)
{
struct hdac_bus *bus = sof_to_bus(sdev);
int ret;
/* i915 exposes a HDA codec for HDMI audio */
ret = snd_hdac_i915_init(bus);
if (ret < 0)
return ret;
hda_codec_i915_get(sdev);
return 0;
}
EXPORT_SYMBOL(hda_codec_i915_init);
int hda_codec_i915_exit(struct snd_sof_dev *sdev)
{
struct hdac_bus *bus = sof_to_bus(sdev);
int ret;
hda_codec_i915_put(sdev);
ret = snd_hdac_i915_exit(bus);
return ret;
}
EXPORT_SYMBOL(hda_codec_i915_exit);
#endif
MODULE_LICENSE("Dual BSD/GPL");
|
