1 /*
2 * Copyright (c) 2022 Intel Corporation.
3 *
4 * SPDX-License-Identifier: Apache-2.0
5 */
6
7 #include <errno.h>
8 #include <stdbool.h>
9 #include <stdint.h>
10 #include <zephyr/spinlock.h>
11 #include <zephyr/device.h>
12 #include <zephyr/devicetree.h>
13 #include <zephyr/pm/device.h>
14 #include <zephyr/pm/device_runtime.h>
15 #include <zephyr/logging/log.h>
16
17 #define DT_DRV_COMPAT intel_hda_dai
18 #define LOG_DOMAIN dai_intel_hda
19
20 LOG_MODULE_REGISTER(LOG_DOMAIN);
21
22 #include "hda.h"
23
dai_hda_trigger(const struct device * dev,enum dai_dir dir,enum dai_trigger_cmd cmd)24 static int dai_hda_trigger(const struct device *dev, enum dai_dir dir,
25 enum dai_trigger_cmd cmd)
26 {
27 LOG_DBG("cmd %d", cmd);
28
29 return 0;
30 }
31
32 /* Digital Audio interface formatting */
dai_hda_set_config_tplg(struct dai_intel_hda * dp,const void * spec_config)33 static int dai_hda_set_config_tplg(struct dai_intel_hda *dp, const void *spec_config)
34 {
35 struct dai_intel_hda_pdata *hda = dai_get_drvdata(dp);
36 const struct dai_intel_ipc_hda_params *config = spec_config;
37
38 if (config->channels) {
39 hda->params.channels = config->channels;
40 }
41
42 if (config->rate) {
43 hda->params.rate = config->rate;
44 }
45
46 return 0;
47 }
48
dai_hda_config_get(const struct device * dev,struct dai_config * cfg,enum dai_dir dir)49 static int dai_hda_config_get(const struct device *dev, struct dai_config *cfg, enum dai_dir dir)
50 {
51 struct dai_config *params = (struct dai_config *)dev->config;
52 struct dai_intel_hda *dp = (struct dai_intel_hda *)dev->data;
53 struct dai_intel_hda_pdata *hda = dai_get_drvdata(dp);
54
55 if (!cfg) {
56 return -EINVAL;
57 }
58
59 params->rate = hda->params.rate;
60 params->channels = hda->params.channels;
61
62 params->word_size = DAI_INTEL_HDA_DEFAULT_WORD_SIZE;
63
64 *cfg = *params;
65
66 return 0;
67 }
68
dai_hda_config_set(const struct device * dev,const struct dai_config * cfg,const void * bespoke_cfg)69 static int dai_hda_config_set(const struct device *dev, const struct dai_config *cfg,
70 const void *bespoke_cfg)
71 {
72 struct dai_intel_hda *dp = (struct dai_intel_hda *)dev->data;
73
74 if (cfg->type == DAI_INTEL_HDA) {
75 return dai_hda_set_config_tplg(dp, bespoke_cfg);
76 }
77
78 return 0;
79 }
80
dai_hda_get_properties(const struct device * dev,enum dai_dir dir,int stream_id)81 static const struct dai_properties *dai_hda_get_properties(const struct device *dev,
82 enum dai_dir dir, int stream_id)
83 {
84 struct dai_intel_hda *dp = (struct dai_intel_hda *)dev->data;
85 struct dai_intel_hda_pdata *hda = dai_get_drvdata(dp);
86 struct dai_properties *prop = &hda->props;
87
88 prop->fifo_address = 0;
89 prop->dma_hs_id = 0;
90 prop->stream_id = 0;
91
92 return prop;
93 }
94
dai_hda_probe(const struct device * dev)95 static int dai_hda_probe(const struct device *dev)
96 {
97 LOG_DBG("%s", __func__);
98
99 return 0;
100 }
101
dai_hda_remove(const struct device * dev)102 static int dai_hda_remove(const struct device *dev)
103 {
104 LOG_DBG("%s", __func__);
105
106 return 0;
107 }
108
hda_pm_action(const struct device * dev,enum pm_device_action action)109 static int hda_pm_action(const struct device *dev, enum pm_device_action action)
110 {
111 switch (action) {
112 case PM_DEVICE_ACTION_SUSPEND:
113 dai_hda_remove(dev);
114 break;
115 case PM_DEVICE_ACTION_RESUME:
116 dai_hda_probe(dev);
117 break;
118 case PM_DEVICE_ACTION_TURN_OFF:
119 case PM_DEVICE_ACTION_TURN_ON:
120 /* All device pm is handled during resume and suspend */
121 break;
122 default:
123 return -ENOTSUP;
124 }
125
126 return 0;
127 }
128
hda_init(const struct device * dev)129 static int hda_init(const struct device *dev)
130 {
131 LOG_DBG("%s", __func__);
132 return pm_device_driver_init(dev, hda_pm_action);
133 }
134
135 static DEVICE_API(dai, dai_intel_hda_api_funcs) = {
136 .probe = pm_device_runtime_get,
137 .remove = pm_device_runtime_put,
138 .config_set = dai_hda_config_set,
139 .config_get = dai_hda_config_get,
140 .trigger = dai_hda_trigger,
141 .get_properties = dai_hda_get_properties,
142 };
143
144 #define DAI_INTEL_HDA_DEVICE_INIT(n) \
145 static struct dai_config dai_intel_hda_config_##n = { \
146 .type = DAI_INTEL_HDA, \
147 .dai_index = DT_INST_REG_ADDR(n), \
148 }; \
149 static struct dai_intel_hda dai_intel_hda_data_##n = { \
150 .index = DT_INST_REG_ADDR(n) \
151 \
152 }; \
153 \
154 PM_DEVICE_DT_INST_DEFINE(n, hda_pm_action); \
155 \
156 DEVICE_DT_INST_DEFINE(n, \
157 hda_init, PM_DEVICE_DT_INST_GET(n), \
158 &dai_intel_hda_data_##n, \
159 &dai_intel_hda_config_##n, \
160 POST_KERNEL, \
161 CONFIG_DAI_INIT_PRIORITY, \
162 &dai_intel_hda_api_funcs);
163
164 DT_INST_FOREACH_STATUS_OKAY(DAI_INTEL_HDA_DEVICE_INIT)
165
