1 /* SPDX-License-Identifier: GPL-2.0-only */
2
3 #include <acpi/acpigen.h>
4 #include <acpi/acpi_device.h>
5 #include <acpi/acpi_soundwire.h>
6 #include <device/device.h>
7 #include <device/soundwire.h>
8 #include <mipi/ids.h>
9 #include <stdio.h>
10
11 #include "chip.h"
12
13 static struct soundwire_address alc1308_address = {
14 .version = SOUNDWIRE_VERSION_1_1,
15 .manufacturer_id = MIPI_MFG_ID_REALTEK,
16 .part_id = MIPI_DEV_ID_REALTEK_ALC1308,
17 .class = MIPI_CLASS_NONE
18 };
19
20 static struct soundwire_slave alc1308_slave = {
21 .wake_up_unavailable = false,
22 .test_mode_supported = false,
23 .clock_stop_mode1_supported = true,
24 .simplified_clockstopprepare_sm_supported = true,
25 .clockstopprepare_hard_reset_behavior = false,
26 .highPHY_capable = false,
27 .paging_supported = false,
28 .bank_delay_supported = false,
29 .port15_read_behavior = false,
30 .source_port_list = SOUNDWIRE_PORT(2) | SOUNDWIRE_PORT(4),
31 .sink_port_list = SOUNDWIRE_PORT(1)
32 };
33
34 static struct soundwire_audio_mode alc1308_audio_mode = {
35 /* Bus frequency must be 1/2/4/8 divider of supported input frequencies. */
36 .bus_frequency_configs_count = 12,
37 .bus_frequency_configs = {
38 9600 * KHz, 4800 * KHz, 2400 * KHz, 1200 * KHz, /* 9.6 MHz */
39 12000 * KHz, 6000 * KHz, 3000 * KHz, 1500 * KHz, /* 12 MHz */
40 12288 * KHz, 6144 * KHz, 3072 * KHz, 1536 * KHz /* 12.288 MHz */
41 },
42 /* Support 16 KHz to 96 KHz sampling frequency */
43 .sampling_frequency_configs_count = 8,
44 .sampling_frequency_configs = {
45 16 * KHz,
46 22.05 * KHz,
47 24 * KHz,
48 32 * KHz,
49 44.1 * KHz,
50 48 * KHz,
51 88.2 * KHz,
52 96 * KHz,
53 },
54 .prepare_channel_behavior = CHANNEL_PREPARE_ANY_FREQUENCY
55 };
56
57 static struct soundwire_dpn alc1308_dp1 = {
58 .port_wordlength_configs_count = 1,
59 .port_wordlength_configs = { 32 },
60 .data_port_type = FULL_DATA_PORT,
61 .max_grouping_supported = BLOCK_GROUP_COUNT_1,
62 .simplified_channelprepare_sm = false,
63 .imp_def_dpn_interrupts_supported = 0,
64 .min_channel_number = 1,
65 .max_channel_number = 2,
66 .modes_supported = MODE_ISOCHRONOUS | MODE_TX_CONTROLLED |
67 MODE_RX_CONTROLLED | MODE_FULL_ASYNCHRONOUS,
68 .block_packing_mode = true,
69 .port_audio_mode_count = 1,
70 .port_audio_mode_list = { 0 }
71 };
72
73 static const struct soundwire_codec alc1308_codec = {
74 .slave = &alc1308_slave,
75 .audio_mode = { &alc1308_audio_mode },
76 .dpn = {
77 {
78 /* Data Input for Speaker Path */
79 .port = 1,
80 .sink = &alc1308_dp1
81 },
82 {
83 /* Data out for I.V sensing */
84 .port = 2,
85 .source = &alc1308_dp1
86 },
87 {
88 /* Data out for I.V sensing */
89 .port = 4,
90 .source = &alc1308_dp1
91 }
92 }
93
94 };
95
soundwire_alc1308_fill_ssdt(const struct device * dev)96 static void soundwire_alc1308_fill_ssdt(const struct device *dev)
97 {
98 struct drivers_soundwire_alc1308_config *config = dev->chip_info;
99 const char *scope = acpi_device_scope(dev);
100 struct acpi_dp *dsd;
101
102 if (!dev->enabled || !scope)
103 return;
104
105 acpigen_write_scope(scope);
106 acpigen_write_device(acpi_device_name(dev));
107
108 /* Set codec address IDs. */
109 alc1308_address.link_id = dev->path.generic.id;
110 alc1308_address.unique_id = dev->path.generic.subid;
111
112 acpigen_write_ADR_soundwire_device(&alc1308_address);
113 acpigen_write_name_string("_DDN", config->desc ? : dev->chip_ops->name);
114 acpigen_write_STA(acpi_device_status(dev));
115
116 dsd = acpi_dp_new_table("_DSD");
117 soundwire_gen_codec(dsd, &alc1308_codec, NULL);
118 acpi_dp_write(dsd);
119
120 acpigen_pop_len(); /* Device */
121 acpigen_pop_len(); /* Scope */
122 }
123
soundwire_alc1308_acpi_name(const struct device * dev)124 static const char *soundwire_alc1308_acpi_name(const struct device *dev)
125 {
126 struct drivers_soundwire_alc1308_config *config = dev->chip_info;
127 static char name[5];
128
129 if (config->name)
130 return config->name;
131 snprintf(name, sizeof(name), "SW%1X%1X", dev->path.generic.id, dev->path.generic.subid);
132 return name;
133 }
134
135 static struct device_operations soundwire_alc1308_ops = {
136 .read_resources = noop_read_resources,
137 .set_resources = noop_set_resources,
138 .acpi_name = soundwire_alc1308_acpi_name,
139 .acpi_fill_ssdt = soundwire_alc1308_fill_ssdt,
140 };
141
soundwire_alc1308_enable(struct device * dev)142 static void soundwire_alc1308_enable(struct device *dev)
143 {
144 dev->ops = &soundwire_alc1308_ops;
145 }
146
147 struct chip_operations drivers_soundwire_alc1308_ops = {
148 .name = "Realtek ALC1308 SoundWire Codec",
149 .enable_dev = soundwire_alc1308_enable
150 };
151