diff options
Diffstat (limited to 'src/drivers/soundwire/alc5682/alc5682.c')
| -rw-r--r-- | src/drivers/soundwire/alc5682/alc5682.c | 179 |
1 files changed, 179 insertions, 0 deletions
diff --git a/src/drivers/soundwire/alc5682/alc5682.c b/src/drivers/soundwire/alc5682/alc5682.c new file mode 100644 index 0000000000..79ed610ab8 --- /dev/null +++ b/src/drivers/soundwire/alc5682/alc5682.c @@ -0,0 +1,179 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ + +#include <acpi/acpigen.h> +#include <acpi/acpi_device.h> +#include <acpi/acpi_soundwire.h> +#include <device/device.h> +#include <device/mipi_ids.h> +#include <device/path.h> +#include <device/soundwire.h> +#include <stdio.h> + +#include "chip.h" + +static struct soundwire_address alc5682_address = { + .version = SOUNDWIRE_VERSION_1_1, + .manufacturer_id = MIPI_MFG_ID_REALTEK, + .part_id = MIPI_DEV_ID_REALTEK_ALC5682, + .class = MIPI_CLASS_NONE +}; + +static struct soundwire_slave alc5682_slave = { + .wake_up_unavailable = false, + .test_mode_supported = false, + .clock_stop_mode1_supported = true, + .simplified_clockstopprepare_sm_supported = true, + .clockstopprepare_hard_reset_behavior = false, + .highPHY_capable = false, + .paging_supported = false, + .bank_delay_supported = false, + .port15_read_behavior = false, + .source_port_list = SOUNDWIRE_PORT(1) | SOUNDWIRE_PORT(2) | + SOUNDWIRE_PORT(3) | SOUNDWIRE_PORT(4), + .sink_port_list = SOUNDWIRE_PORT(1) | SOUNDWIRE_PORT(2) | + SOUNDWIRE_PORT(3) | SOUNDWIRE_PORT(4) +}; + +static struct soundwire_bra_mode alc5682_dp0_bra_mode = { + .bus_frequency_configs_count = 7, + .bus_frequency_configs = { + 1000 * KHz, /* 1 MHz */ + 2400 * KHz, /* 2.4 MHz */ + 3000 * KHz, /* 3 MHz */ + 4000 * KHz, /* 4 MHz */ + 4800 * KHz, /* 4.8 MHz */ + 9600 * KHz, /* 9.6 MHz */ + 12000 * KHz, /* 12 MHz */ + }, + .max_data_per_frame = 470, + .min_us_between_transactions = 0 +}; + +static struct soundwire_dp0 alc5682_dp0 = { + .port_max_wordlength = 64, + .port_min_wordlength = 1, + .bra_imp_def_response_supported = false, + .simplified_channel_prepare_sm = true, + .imp_def_dp0_interrupts_supported = 0, + .imp_def_bpt_supported = true, + .bra_mode_count = 1, + .bra_mode_list = { 0 } +}; + +static struct soundwire_audio_mode alc5682_audio_mode = { + .bus_frequency_configs_count = 7, + .bus_frequency_configs = { + 1000 * KHz, /* 1 MHz */ + 2400 * KHz, /* 2.4 MHz */ + 3000 * KHz, /* 3 MHz */ + 4000 * KHz, /* 4 MHz */ + 4800 * KHz, /* 4.8 MHz */ + 9600 * KHz, /* 9.6 MHz */ + 12000 * KHz, /* 12 MHz */ + }, + /* Support 8 KHz to 192 KHz sampling frequency */ + .max_sampling_frequency = 192 * KHz, + .min_sampling_frequency = 8 * KHz, + .prepare_channel_behavior = CHANNEL_PREPARE_ANY_FREQUENCY +}; + +static struct soundwire_dpn alc5682_dpn = { + .port_wordlength_configs_count = 3, + .port_wordlength_configs = { 16, 20, 24 }, + .data_port_type = FULL_DATA_PORT, + .max_grouping_supported = BLOCK_GROUP_COUNT_1, + .simplified_channelprepare_sm = false, + .imp_def_dpn_interrupts_supported = 0, + .min_channel_number = 1, + .max_channel_number = 2, + .modes_supported = MODE_ISOCHRONOUS | MODE_TX_CONTROLLED | + MODE_RX_CONTROLLED | MODE_FULL_ASYNCHRONOUS, + .block_packing_mode = true, + .port_audio_mode_count = 1, + .port_audio_mode_list = { 0 } +}; + +static const struct soundwire_codec alc5682_codec = { + .slave = &alc5682_slave, + .dp0_bra_mode = { &alc5682_dp0_bra_mode }, + .dp0 = &alc5682_dp0, + .audio_mode = { &alc5682_audio_mode }, + .dpn = { + { + .port = 1, + .source = &alc5682_dpn, + .sink = &alc5682_dpn, + }, + { + .port = 2, + .source = &alc5682_dpn, + .sink = &alc5682_dpn, + }, + { + .port = 3, + .source = &alc5682_dpn, + .sink = &alc5682_dpn, + }, + { + .port = 4, + .source = &alc5682_dpn, + .sink = &alc5682_dpn, + } + } +}; + +static void soundwire_alc5682_fill_ssdt(const struct device *dev) +{ + struct drivers_soundwire_alc5682_config *config = dev->chip_info; + const char *scope = acpi_device_scope(dev); + struct acpi_dp *dsd; + + if (!dev->enabled || !scope) + return; + + acpigen_write_scope(scope); + acpigen_write_device(acpi_device_name(dev)); + + /* Set codec address IDs. */ + alc5682_address.link_id = dev->path.generic.id; + alc5682_address.unique_id = dev->path.generic.subid; + + acpigen_write_ADR_soundwire_device(&alc5682_address); + acpigen_write_name_string("_DDN", config->desc ? : dev->chip_ops->name); + acpigen_write_STA(acpi_device_status(dev)); + + dsd = acpi_dp_new_table("_DSD"); + soundwire_gen_codec(dsd, &alc5682_codec, NULL); + acpi_dp_write(dsd); + + acpigen_pop_len(); /* Device */ + acpigen_pop_len(); /* Scope */ +} + +static const char *soundwire_alc5682_acpi_name(const struct device *dev) +{ + struct drivers_soundwire_alc5682_config *config = dev->chip_info; + static char name[5]; + + if (config->name) + return config->name; + snprintf(name, sizeof(name), "SW%1X%1X", dev->path.generic.id, dev->path.generic.subid); + return name; +} + +static struct device_operations soundwire_alc5682_ops = { + .read_resources = noop_read_resources, + .set_resources = noop_set_resources, + .acpi_name = soundwire_alc5682_acpi_name, + .acpi_fill_ssdt = soundwire_alc5682_fill_ssdt, +}; + +static void soundwire_alc5682_enable(struct device *dev) +{ + dev->ops = &soundwire_alc5682_ops; +} + +struct chip_operations drivers_soundwire_alc5682_ops = { + CHIP_NAME("Realtek ALC5682 SoundWire Codec") + .enable_dev = soundwire_alc5682_enable +}; |