src/drivers/soundwire/max98363/max98363.c

   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
  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
 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
 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 };