/* 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/soundwire.h> #include <mipi/ids.h> #include <stdio.h> #include "chip.h" static struct soundwire_address cs42l42_address = { .version = SOUNDWIRE_VERSION_1_0, .manufacturer_id = MIPI_MFG_ID_CIRRUS, .part_id = MIPI_DEV_ID_CIRRUS_CS42L42, .class = MIPI_CLASS_NONE }; static struct soundwire_slave cs42l42_slave = { .wake_up_unavailable = false, .test_mode_supported = false, .clock_stop_mode1_supported = true, .simplified_clockstopprepare_sm_supported = false, .clockstopprepare_hard_reset_behavior = true, .highPHY_capable = false, .paging_supported = true, .bank_delay_supported = true, .port15_read_behavior = false, .source_port_list = SOUNDWIRE_PORT(1), .sink_port_list = SOUNDWIRE_PORT(2) | SOUNDWIRE_PORT(3) }; static struct soundwire_bra_mode cs42l42_dp0_bra_mode = { .bus_frequency_configs_count = 6, .bus_frequency_configs = { 11289600, /* 11.2896 MHz */ 12000 * KHz, /* 12 MHz */ 12288 * KHz, /* 12.288 MHz */ 22579200, /* 22.5792 MHz */ 24000 * KHz, /* 24 MHz */ 24576 * KHz, /* 24.576 MHz */ }, .max_data_per_frame = 4096, /* MaxRow*MaxCol = 256*16 = 4096 */ .min_us_between_transactions = 0 }; static struct soundwire_dp0 cs42l42_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 cs42l42_audio_mode = { .bus_frequency_configs_count = 6, .bus_frequency_configs = { 11289600, /* 11.2896 MHz */ 12000 * KHz, /* 12 MHz */ 12288 * KHz, /* 12.288 MHz */ 22579200, /* 22.5792 MHz */ 24000 * KHz, /* 24 MHz */ 24576 * KHz, /* 24.576 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 cs42l42_dp1 = { .port_max_wordlength = 64, .port_min_wordlength = 1, .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 = 1, .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 struct soundwire_dpn cs42l42_dpn = { .port_max_wordlength = 64, .port_min_wordlength = 1, .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 cs42l42_codec = { .slave = &cs42l42_slave, .dp0_bra_mode = { &cs42l42_dp0_bra_mode }, .dp0 = &cs42l42_dp0, .audio_mode = { &cs42l42_audio_mode }, .dpn = { { .port = 1, .source = &cs42l42_dp1, }, { .port = 2, .sink = &cs42l42_dpn, }, { .port = 3, .sink = &cs42l42_dpn, } } }; static void soundwire_cs42l42_fill_ssdt(const struct device *dev) { struct drivers_soundwire_cs42l42_config *config = dev->chip_info; const char *scope = acpi_device_scope(dev); const char *path = acpi_device_path(dev); struct acpi_dp *dsd; int gpio_index = 0; if (!scope) return; acpigen_write_scope(scope); acpigen_write_device(acpi_device_name(dev)); /* Set codec address IDs. */ cs42l42_address.link_id = dev->path.generic.id; cs42l42_address.unique_id = dev->path.generic.subid; acpigen_write_ADR_soundwire_device(&cs42l42_address); acpigen_write_name_string("_DDN", config->desc ? : dev->chip_ops->name); acpigen_write_STA(acpi_device_status(dev)); /* Resources */ acpigen_write_name("_CRS"); acpigen_write_resourcetemplate_header(); /* Use either Interrupt() or GpioInt() */ if (config->irq_gpio.pin_count) acpi_device_write_gpio(&config->irq_gpio); else acpi_device_write_interrupt(&config->irq); /* for cs42l42 reset gpio */ if (config->reset_gpio.pin_count) acpi_device_write_gpio(&config->reset_gpio); acpigen_write_resourcetemplate_footer(); dsd = acpi_dp_new_table("_DSD"); if (config->irq_gpio.pin_count) acpi_dp_add_gpio(dsd, "irq-gpios", path, gpio_index++, /* Index = 0 */ 0, /* Pin = 0 (There is a single pin in the GPIO resource). */ config->irq_gpio.active_low); if (config->reset_gpio.pin_count) acpi_dp_add_gpio(dsd, "reset-gpios", path, gpio_index++, /* Index = 0 or 1 (if irq gpio is written). */ 0, /* Pin = 0 (There is a single pin in the GPIO resource). */ config->reset_gpio.active_low); acpi_dp_add_integer(dsd, "cirrus,ts-inv", config->ts_inv ? 1 : 0); acpi_dp_add_integer(dsd, "cirrus,ts-dbnc-rise", config->ts_dbnc_rise); acpi_dp_add_integer(dsd, "cirrus,ts-dbnc-fall", config->ts_dbnc_fall); acpi_dp_add_integer(dsd, "cirrus,btn-det-init-dbnce", config->btn_det_init_dbnce); if (config->btn_det_init_dbnce > 200) { printk(BIOS_ERR, "%s: Incorrect btn_det_init_dbnce(%d). Using default of 100ms\n", __func__, config->btn_det_init_dbnce); config->btn_det_init_dbnce = 100; } acpi_dp_add_integer(dsd, "cirrus,btn-det-event-dbnce", config->btn_det_event_dbnce); if (config->btn_det_event_dbnce > 100) { printk(BIOS_ERR, "%s: Incorrect btn_det_event_dbnce(%d). Using default of 10ms\n", __func__, config->btn_det_event_dbnce); config->btn_det_event_dbnce = 10; } acpi_dp_add_integer_array(dsd, "cirrus,bias-lvls", config->bias_lvls, 4); acpi_dp_add_integer(dsd, "cirrus,hs-bias-ramp-rate", config->hs_bias_ramp_rate); if (config->hs_bias_sense_disable) acpi_dp_add_integer(dsd, "cirrus,hs-bias-sense-disable", 1); soundwire_gen_codec(dsd, &cs42l42_codec, NULL); acpi_dp_write(dsd); acpigen_pop_len(); /* Device */ acpigen_pop_len(); /* Scope */ } static const char *soundwire_cs42l42_acpi_name(const struct device *dev) { struct drivers_soundwire_cs42l42_config *config = dev->chip_info; if (config->acpi_name[0] != 0) return config->acpi_name; snprintf(config->acpi_name, sizeof(config->acpi_name), "SW%1X%1X", dev->path.generic.id, dev->path.generic.subid); return config->acpi_name; } static struct device_operations soundwire_cs42l42_ops = { .read_resources = noop_read_resources, .set_resources = noop_set_resources, .acpi_name = soundwire_cs42l42_acpi_name, .acpi_fill_ssdt = soundwire_cs42l42_fill_ssdt, }; static void soundwire_cs42l42_enable(struct device *dev) { dev->ops = &soundwire_cs42l42_ops; } struct chip_operations drivers_soundwire_cs42l42_ops = { .name = "Cirrus Logic CS42L42 SoundWire Codec", .enable_dev = soundwire_cs42l42_enable };