Cheng-Yi Chiang has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/36029 )
Change subject: drivers/i2c/rt1011: Add a driver for RT1011 ......................................................................
drivers/i2c/rt1011: Add a driver for RT1011
Set calibration data in device property for RT1011
Signed-off-by: Cheng-Yi Chiang cychiang@chromium.org Change-Id: I9550b9890ce2cae787f4f17779a5ade77f619171 --- A src/drivers/i2c/rt1011/Kconfig A src/drivers/i2c/rt1011/Makefile.inc A src/drivers/i2c/rt1011/chip.h A src/drivers/i2c/rt1011/rt1011.c 4 files changed, 162 insertions(+), 0 deletions(-)
git pull ssh://review.coreboot.org:29418/coreboot refs/changes/29/36029/1
diff --git a/src/drivers/i2c/rt1011/Kconfig b/src/drivers/i2c/rt1011/Kconfig new file mode 100644 index 0000000..f795196 --- /dev/null +++ b/src/drivers/i2c/rt1011/Kconfig @@ -0,0 +1,4 @@ +config DRIVERS_I2C_RT1011 + bool + default n + depends on HAVE_ACPI_TABLES diff --git a/src/drivers/i2c/rt1011/Makefile.inc b/src/drivers/i2c/rt1011/Makefile.inc new file mode 100644 index 0000000..a8b8283 --- /dev/null +++ b/src/drivers/i2c/rt1011/Makefile.inc @@ -0,0 +1 @@ +ramstage-$(CONFIG_DRIVERS_I2C_RT1011) += rt1011.c diff --git a/src/drivers/i2c/rt1011/chip.h b/src/drivers/i2c/rt1011/chip.h new file mode 100644 index 0000000..39811a8 --- /dev/null +++ b/src/drivers/i2c/rt1011/chip.h @@ -0,0 +1,34 @@ +/* + * This file is part of the coreboot project. + * + * Copyright 2019 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. + */ + +/* + * Realtek RT1011 audio codec devicetree bindings + */ + +#include <stdint.h> + +struct drivers_i2c_rt1011_config { + enum i2c_speed speed; /* Bus speed in Hz, default is I2C_SPEED_FAST */ + + const char *hid; /* ACPI _HID (required) */ + const char *name; /* ACPI Device Name */ + const char *desc; /* Device Description */ + unsigned int uid; /* ACPI _UID */ + + /* The VPD key of calibrated speaker resistance. */ + const char *r0_calib_key; + /* The VPD key of temperature during speaker calibration. */ + const char *temperature_calib_key; +}; diff --git a/src/drivers/i2c/rt1011/rt1011.c b/src/drivers/i2c/rt1011/rt1011.c new file mode 100644 index 0000000..b3bfda8 --- /dev/null +++ b/src/drivers/i2c/rt1011/rt1011.c @@ -0,0 +1,123 @@ +/* + * This file is part of the coreboot project. + * + * Copyright 2019 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 <dsm_calib.h> +#include "chip.h" + +#define RT1011_ACPI_NAME "RT11" + +#define RT1011_DP_INT(key, val) \ + acpi_dp_add_integer(dp, "realtek," key, (val)) + +static void rt1011_fill_ssdt(struct device *dev) +{ + struct drivers_i2c_rt1011_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->speed ? : I2C_SPEED_FAST, + .resource = scope, + }; + struct acpi_dp *dp; + uint64_t r0_value, temp_value; + + if (!dev->enabled || !scope) + return; + + /* Device */ + acpigen_write_scope(scope); + acpigen_write_device(acpi_device_name(dev)); + acpigen_write_name_string("_HID", config->hid); + acpigen_write_name_integer("_UID", config->uid); + acpigen_write_name_string("_DDN", config->desc); + acpigen_write_STA(acpi_device_status(dev)); + + /* Resources */ + acpigen_write_name("_CRS"); + acpigen_write_resourcetemplate_header(); + acpi_device_write_i2c(&i2c); + + acpigen_write_resourcetemplate_footer(); + + /* Device Properties */ + printk(BIOS_ERR, "@@ device property\n"); + if (CONFIG(CHROMEOS_DSM_CALIB)) { + printk(BIOS_ERR, "@@ CONFIG_CHROMEOS_DSM_CALIB is on\n"); + if (get_dsm_calibration_from_key( + config->r0_calib_key, &r0_value) || + get_dsm_calibration_from_key( + config->temperature_calib_key, &temp_value)) { + printk(BIOS_ERR, "@@ cannot get dsm_calib\n"); + } else { + dp = acpi_dp_new_table("_DSD"); + RT1011_DP_INT("r0_calib", r0_value); + RT1011_DP_INT("temperature_calib", temp_value); + acpi_dp_write(dp); + printk(BIOS_ERR, "@@ success get dsm_calib\n"); + } + } + + acpigen_pop_len(); /* Device */ + acpigen_pop_len(); /* Scope */ + + printk(BIOS_INFO, "%s: %s address 0%xh\n", acpi_device_path(dev), + dev->chip_ops->name, dev->path.i2c.device); +} + +static const char *rt1011_acpi_name(const struct device *dev) +{ + struct drivers_i2c_rt1011_config *config = dev->chip_info; + + if (config->name) + return config->name; + + return RT1011_ACPI_NAME; +} + +static struct device_operations rt1011_ops = { + .read_resources = DEVICE_NOOP, + .set_resources = DEVICE_NOOP, + .enable_resources = DEVICE_NOOP, + .acpi_name = rt1011_acpi_name, + .acpi_fill_ssdt_generator = rt1011_fill_ssdt, +}; + +static void rt1011_enable(struct device *dev) +{ + struct drivers_i2c_rt1011_config *config = dev->chip_info; + + if (!config) + return; + + dev->ops = &rt1011_ops; + + /* Name the device as per description provided in devicetree */ + if (config->desc) + dev->name = config->desc; +} + +struct chip_operations drivers_i2c_rt1011_ops = { + CHIP_NAME("Realtek RT1011 Codec") + .enable_dev = rt1011_enable +};