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 max98363_address = {
14 .version = SOUNDWIRE_VERSION_1_2,
15 .manufacturer_id = MIPI_MFG_ID_MAXIM,
16 .part_id = MIPI_DEV_ID_MAXIM_MAX98363,
17 .class = MIPI_CLASS_NONE
18 };
19
20 static struct soundwire_slave max98363_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 = 0,
31 .sink_port_list = SOUNDWIRE_PORT(1),
32 };
33
34 static struct soundwire_audio_mode max98363_audio_mode = {
35 /* Bus frequency must be 2/4/8/16 divider of supported input frequencies. */
36 .bus_frequency_configs_count = 19,
37 .bus_frequency_configs = {
38 9600 * KHz, 4800 * KHz, 2400 * KHz, 1200 * KHz, /* 19.2 MHz */
39 11289600, 5644800, 2822400, 1411200, /* 22.5792 MHz */
40 12000 * KHz, 6000 * KHz, 3000 * KHz, 1500 * KHz, /* 24 MHz */
41 12288 * KHz, 6144 * KHz, 3072 * KHz, 1536 * KHz, /* 24.576 MHz */
42 8000 * KHz, 4000 * KHz, 2000 * KHz, /* 32 MHz (no /2) */
43 },
44 /* Support 16 KHz to 96 KHz sampling frequency */
45 .sampling_frequency_configs_count = 8,
46 .sampling_frequency_configs = {
47 16 * KHz,
48 22.05 * KHz,
49 24 * KHz,
50 32 * KHz,
51 44.1 * KHz,
52 48 * KHz,
53 88.2 * KHz,
54 96 * KHz,
55 },
56 .prepare_channel_behavior = CHANNEL_PREPARE_ANY_FREQUENCY
57 };
58
59 static struct soundwire_dpn max98363_dp1 = {
60 .port_wordlength_configs_count = 1,
61 .port_wordlength_configs = { 32 },
62 .data_port_type = FULL_DATA_PORT,
63 .max_grouping_supported = BLOCK_GROUP_COUNT_1,
64 .simplified_channelprepare_sm = false,
65 .imp_def_dpn_interrupts_supported = 0,
66 .min_channel_number = 1,
67 .max_channel_number = 1,
68 .modes_supported = MODE_ISOCHRONOUS | MODE_TX_CONTROLLED |
69 MODE_RX_CONTROLLED | MODE_FULL_ASYNCHRONOUS,
70 .block_packing_mode = true,
71 .port_audio_mode_count = 1,
72 .port_audio_mode_list = { 0 }
73 };
74
75 static const struct soundwire_codec max98363_codec = {
76 .slave = &max98363_slave,
77 .audio_mode = { &max98363_audio_mode },
78 .dpn = {
79 {
80 /* Data Input for Speaker Path */
81 .port = 1,
82 .sink = &max98363_dp1
83 }
84 }
85 };
86
soundwire_max98363_fill_ssdt(const struct device * dev)87 static void soundwire_max98363_fill_ssdt(const struct device *dev)
88 {
89 struct drivers_soundwire_max98363_config *config = dev->chip_info;
90 const char *scope = acpi_device_scope(dev);
91 struct acpi_dp *dsd;
92
93 if (!scope)
94 return;
95
96 acpigen_write_scope(scope);
97 acpigen_write_device(acpi_device_name(dev));
98
99 /* Set codec address IDs. */
100 max98363_address.link_id = dev->path.generic.id;
101 max98363_address.unique_id = dev->path.generic.subid;
102
103 acpigen_write_ADR_soundwire_device(&max98363_address);
104 acpigen_write_name_string("_DDN", config->desc ? : dev->chip_ops->name);
105 acpigen_write_STA(acpi_device_status(dev));
106
107 dsd = acpi_dp_new_table("_DSD");
108 soundwire_gen_codec(dsd, &max98363_codec, NULL);
109 acpi_dp_write(dsd);
110
111 acpigen_pop_len(); /* Device */
112 acpigen_pop_len(); /* Scope */
113 }
114
soundwire_max98363_acpi_name(const struct device * dev)115 static const char *soundwire_max98363_acpi_name(const struct device *dev)
116 {
117 struct drivers_soundwire_max98363_config *config = dev->chip_info;
118 if (config->acpi_name[0] != 0)
119 return config->acpi_name;
120 snprintf(config->acpi_name, sizeof(config->acpi_name), "SW%1X%1X",
121 dev->path.generic.id, dev->path.generic.subid);
122 return config->acpi_name;
123 }
124
125 static struct device_operations soundwire_max98363_ops = {
126 .read_resources = noop_read_resources,
127 .set_resources = noop_set_resources,
128 .acpi_name = soundwire_max98363_acpi_name,
129 .acpi_fill_ssdt = soundwire_max98363_fill_ssdt,
130 };
131
soundwire_max98363_enable(struct device * dev)132 static void soundwire_max98363_enable(struct device *dev)
133 {
134 dev->ops = &soundwire_max98363_ops;
135 }
136
137 struct chip_operations drivers_soundwire_max98363_ops = {
138 .name = "Maxim MAX98363 SoundWire Codec",
139 .enable_dev = soundwire_max98363_enable
140 };
141