src/drivers/soundwire/alc5682/alc5682.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 alc5682_address = {
  14         .version = SOUNDWIRE_VERSION_1_1,
  15         .manufacturer_id = MIPI_MFG_ID_REALTEK,
  16         .part_id = MIPI_DEV_ID_REALTEK_ALC5682,
  17         .class = MIPI_CLASS_NONE
  18 };
  19
  20 static struct soundwire_slave alc5682_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(1) | SOUNDWIRE_PORT(2) |
  31                             SOUNDWIRE_PORT(3) | SOUNDWIRE_PORT(4),
  32         .sink_port_list = SOUNDWIRE_PORT(1) | SOUNDWIRE_PORT(2) |
  33                           SOUNDWIRE_PORT(3) | SOUNDWIRE_PORT(4)
  34 };
  35
  36 static struct soundwire_bra_mode alc5682_dp0_bra_mode = {
  37         .bus_frequency_configs_count = 7,
  38         .bus_frequency_configs = {
  39                 1000 * KHz,     /* 1 MHz */
  40                 2400 * KHz,     /* 2.4 MHz */
  41                 3000 * KHz,     /* 3 MHz */
  42                 4000 * KHz,     /* 4 MHz */
  43                 4800 * KHz,     /* 4.8 MHz */
  44                 9600 * KHz,     /* 9.6 MHz */
  45                 12000 * KHz,    /* 12 MHz */
  46         },
  47         .max_data_per_frame = 470,
  48         .min_us_between_transactions = 0
  49 };
  50
  51 static struct soundwire_dp0 alc5682_dp0 = {
  52         .port_max_wordlength = 64,
  53         .port_min_wordlength = 1,
  54         .bra_imp_def_response_supported = false,
  55         .simplified_channel_prepare_sm = true,
  56         .imp_def_dp0_interrupts_supported = 0,
  57         .imp_def_bpt_supported = true,
  58         .bra_mode_count = 1,
  59         .bra_mode_list = { 0 }
  60 };
  61
  62 static struct soundwire_audio_mode alc5682_audio_mode = {
  63         .bus_frequency_configs_count = 7,
  64         .bus_frequency_configs = {
  65                 1000 * KHz,     /* 1 MHz */
  66                 2400 * KHz,     /* 2.4 MHz */
  67                 3000 * KHz,     /* 3 MHz */
  68                 4000 * KHz,     /* 4 MHz */
  69                 4800 * KHz,     /* 4.8 MHz */
  70                 9600 * KHz,     /* 9.6 MHz */
  71                 12000 * KHz,    /* 12 MHz */
  72         },
  73         /* Support 8 KHz to 192 KHz sampling frequency */
  74         .max_sampling_frequency = 192 * KHz,
  75         .min_sampling_frequency = 8 * KHz,
  76         .prepare_channel_behavior = CHANNEL_PREPARE_ANY_FREQUENCY
  77 };
  78
  79 static struct soundwire_dpn alc5682_dpn = {
  80         .port_wordlength_configs_count = 3,
  81         .port_wordlength_configs = { 16, 20, 24 },
  82         .data_port_type = FULL_DATA_PORT,
  83         .max_grouping_supported = BLOCK_GROUP_COUNT_1,
  84         .simplified_channelprepare_sm = false,
  85         .imp_def_dpn_interrupts_supported = 0,
  86         .min_channel_number = 1,
  87         .max_channel_number = 2,
  88         .modes_supported = MODE_ISOCHRONOUS | MODE_TX_CONTROLLED |
  89                            MODE_RX_CONTROLLED | MODE_FULL_ASYNCHRONOUS,
  90         .block_packing_mode = true,
  91         .port_audio_mode_count = 1,
  92         .port_audio_mode_list = { 0 }
  93 };
  94
  95 static const struct soundwire_codec alc5682_codec = {
  96         .slave = &alc5682_slave,
  97         .dp0_bra_mode = { &alc5682_dp0_bra_mode },
  98         .dp0 = &alc5682_dp0,
  99         .audio_mode = { &alc5682_audio_mode },
 100         .dpn = {
 101                 {
 102                         .port = 1,
 103                         .source = &alc5682_dpn,
 104                         .sink = &alc5682_dpn,
 105                 },
 106                 {
 107                         .port = 2,
 108                         .source = &alc5682_dpn,
 109                         .sink = &alc5682_dpn,
 110                 },
 111                 {
 112                         .port = 3,
 113                         .source = &alc5682_dpn,
 114                         .sink = &alc5682_dpn,
 115                 },
 116                 {
 117                         .port = 4,
 118                         .source = &alc5682_dpn,
 119                         .sink = &alc5682_dpn,
 120                 }
 121         }
 122 };
 123
 124 static void soundwire_alc5682_fill_ssdt(const struct device *dev)
 125 {
 126         struct drivers_soundwire_alc5682_config *config = dev->chip_info;
 127         const char *scope = acpi_device_scope(dev);
 128         struct acpi_dp *dsd;
 129
 130         if (!scope)
 131                 return;
 132
 133         acpigen_write_scope(scope);
 134         acpigen_write_device(acpi_device_name(dev));
 135
 136         /* Set codec address IDs. */
 137         alc5682_address.link_id = dev->path.generic.id;
 138         alc5682_address.unique_id = dev->path.generic.subid;
 139
 140         acpigen_write_ADR_soundwire_device(&alc5682_address);
 141         acpigen_write_name_string("_DDN", config->desc ? : dev->chip_ops->name);
 142         acpigen_write_STA(acpi_device_status(dev));
 143
 144         dsd = acpi_dp_new_table("_DSD");
 145         soundwire_gen_codec(dsd, &alc5682_codec, NULL);
 146         acpi_dp_write(dsd);
 147
 148         acpigen_pop_len(); /* Device */
 149         acpigen_pop_len(); /* Scope */
 150 }
 151
 152 static const char *soundwire_alc5682_acpi_name(const struct device *dev)
 153 {
 154         struct drivers_soundwire_alc5682_config *config = dev->chip_info;
 155         static char name[5];
 156
 157         if (config->name)
 158                 return config->name;
 159         snprintf(name, sizeof(name), "SW%1X%1X", dev->path.generic.id, dev->path.generic.subid);
 160         return name;
 161 }
 162
 163 static struct device_operations soundwire_alc5682_ops = {
 164         .read_resources         = noop_read_resources,
 165         .set_resources          = noop_set_resources,
 166         .acpi_name              = soundwire_alc5682_acpi_name,
 167         .acpi_fill_ssdt         = soundwire_alc5682_fill_ssdt,
 168 };
 169
 170 static void soundwire_alc5682_enable(struct device *dev)
 171 {
 172         dev->ops = &soundwire_alc5682_ops;
 173 }
 174
 175 struct chip_operations drivers_soundwire_alc5682_ops = {
 176         .name = "Realtek ALC5682 SoundWire Codec",
 177         .enable_dev = soundwire_alc5682_enable
 178 };