diff options
Diffstat (limited to 'src/drivers/i2c/da7219/da7219.c')
| -rw-r--r-- | src/drivers/i2c/da7219/da7219.c | 122 |
1 files changed, 122 insertions, 0 deletions
diff --git a/src/drivers/i2c/da7219/da7219.c b/src/drivers/i2c/da7219/da7219.c new file mode 100644 index 0000000000..b29a4a15af --- /dev/null +++ b/src/drivers/i2c/da7219/da7219.c @@ -0,0 +1,122 @@ +/* + * This file is part of the coreboot project. + * + * Copyright 2016 Google Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include <arch/acpi.h> +#include <arch/acpi_device.h> +#include <arch/acpigen.h> +#include <console/console.h> +#include <device/i2c.h> +#include <device/device.h> +#include <device/path.h> +#include <stdint.h> +#include <string.h> +#include "chip.h" + +#if IS_ENABLED(CONFIG_HAVE_ACPI_TABLES) + +#define DA7219_ACPI_NAME "DLG7" +#define DA7219_ACPI_HID "DLGS7219" + +static void da7219_fill_ssdt(struct device *dev) +{ + struct drivers_i2c_da7219_config *config = dev->chip_info; + const char *scope = acpi_device_scope(dev); + struct acpi_i2c i2c = { + .address = dev->path.i2c.device, + .mode_10bit = dev->path.i2c.mode_10bit, + .speed = config->bus_speed ? : I2C_SPEED_FAST, + .resource = scope, + }; + struct acpi_dp *dsd, *aad; + + if (!dev->enabled || !scope) + return; + + /* Device */ + acpigen_write_scope(scope); + acpigen_write_device(acpi_device_name(dev)); + acpigen_write_name_string("_HID", DA7219_ACPI_HID); + acpigen_write_name_integer("_UID", 1); + acpigen_write_name_string("_DDN", dev->chip_ops->name); + acpigen_write_name_integer("_S0W", 4); + acpigen_write_STA(ACPI_STATUS_DEVICE_ALL_ON); + + /* Resources */ + acpigen_write_name("_CRS"); + acpigen_write_resourcetemplate_header(); + acpi_device_write_i2c(&i2c); + acpi_device_write_interrupt(&config->irq); + acpigen_write_resourcetemplate_footer(); + + /* AAD Child Device Properties */ + aad = acpi_dp_new_table("DAAD"); + acpi_dp_add_integer(aad, "dlg,btn-cfg", config->btn_cfg); + acpi_dp_add_integer(aad, "dlg,mic-det-thr", config->mic_det_thr); + acpi_dp_add_integer(aad, "dlg,jack-ins-deb", config->jack_ins_deb); + acpi_dp_add_string(aad, "dlg,jack-det-rate", config->jack_det_rate); + acpi_dp_add_integer(aad, "dlg,jack-rem-deb", config->jack_rem_deb); + acpi_dp_add_integer(aad, "dlg,a-d-btn-thr", config->a_d_btn_thr); + acpi_dp_add_integer(aad, "dlg,d-b-btn-thr", config->d_b_btn_thr); + acpi_dp_add_integer(aad, "dlg,b-c-btn-thr", config->b_c_btn_thr); + acpi_dp_add_integer(aad, "dlg,c-mic-btn-thr", config->c_mic_btn_thr); + acpi_dp_add_integer(aad, "dlg,btn-avg", config->btn_avg); + acpi_dp_add_integer(aad, "dlg,adc-1bit-rpt", config->adc_1bit_rpt); + acpi_dp_add_integer(aad, "dlg,micbias-pulse-lvl", + config->micbias_pulse_lvl); + acpi_dp_add_integer(aad, "dlg,micbias-pulse-time", + config->micbias_pulse_time); + + /* DA7219 Properties */ + dsd = acpi_dp_new_table("_DSD"); + acpi_dp_add_integer(dsd, "dlg,micbias-lvl", config->micbias_lvl); + acpi_dp_add_string(dsd, "dlg,mic-amp-in-sel", config->mic_amp_in_sel); + acpi_dp_add_child(dsd, "da7219_aad", aad); + + /* Write Device Property Hierarchy */ + acpi_dp_write(dsd); + + acpigen_pop_len(); /* Device */ + acpigen_pop_len(); /* Scope */ + + printk(BIOS_INFO, "%s: %s address 0%xh irq %d\n", + acpi_device_path(dev), dev->chip_ops->name, + dev->path.i2c.device, config->irq.pin); +} + +static const char *da7219_acpi_name(struct device *dev) +{ + return DA7219_ACPI_NAME; +} +#endif + +static struct device_operations da7219_ops = { + .read_resources = DEVICE_NOOP, + .set_resources = DEVICE_NOOP, + .enable_resources = DEVICE_NOOP, +#if IS_ENABLED(CONFIG_HAVE_ACPI_TABLES) + .acpi_name = &da7219_acpi_name, + .acpi_fill_ssdt_generator = &da7219_fill_ssdt, +#endif +}; + +static void da7219_enable(struct device *dev) +{ + dev->ops = &da7219_ops; +} + +struct chip_operations drivers_i2c_da7219_ops = { + CHIP_NAME("Dialog Semiconductor DA7219 Audio Codec") + .enable_dev = &da7219_enable +}; |