| /* SPDX-License-Identifier: GPL-2.0-only */ |
| /* This file is part of the coreboot project. */ |
| |
| #include <arch/acpi.h> |
| #include <arch/acpi_device.h> |
| #include <arch/acpigen.h> |
| #include <console/console.h> |
| #include <device/i2c_simple.h> |
| #include <device/device.h> |
| #include <device/path.h> |
| #include "chip.h" |
| |
| static void camera_fill_ssdt(struct device *dev) |
| { |
| struct drivers_intel_mipi_camera_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 = I2C_SPEED_FAST, |
| .resource = scope, |
| }; |
| |
| if (!dev->enabled || !scope) |
| return; |
| |
| /* Device */ |
| acpigen_write_scope(scope); |
| acpigen_write_device(acpi_device_name(dev)); |
| acpigen_write_name_string("_HID", config->acpi_hid); |
| acpigen_write_name_integer("_UID", config->acpi_uid); |
| acpigen_write_name_string("_DDN", config->chip_name); |
| 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(); |
| |
| /* Mark it as Camera related device */ |
| acpigen_write_name_integer("CAMD", config->device_type); |
| |
| /* Create Device specific data */ |
| if (config->device_type == INTEL_ACPI_CAMERA_SENSOR) { |
| acpigen_write_method_serialized("SSDB", 0); |
| acpigen_write_return_byte_buffer((uint8_t *)&config->ssdb, |
| sizeof(config->ssdb)); |
| acpigen_pop_len(); /* Method */ |
| } |
| |
| /* Fill Power Sequencing Data */ |
| acpigen_write_method_serialized("PWDB", 0); |
| acpigen_write_return_byte_buffer((uint8_t *)&config->pwdb, |
| (sizeof(struct intel_pwdb) * config->num_pwdb_entries)); |
| acpigen_pop_len(); /* Method */ |
| |
| 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 *camera_acpi_name(const struct device *dev) |
| { |
| struct drivers_intel_mipi_camera_config *config = dev->chip_info; |
| return config->acpi_name; |
| } |
| |
| static struct device_operations camera_ops = { |
| .read_resources = noop_read_resources, |
| .set_resources = noop_set_resources, |
| .acpi_name = camera_acpi_name, |
| .acpi_fill_ssdt = camera_fill_ssdt, |
| }; |
| |
| static void camera_enable(struct device *dev) |
| { |
| dev->ops = &camera_ops; |
| } |
| |
| struct chip_operations drivers_intel_mipi_camera_ops = { |
| CHIP_NAME("Intel MIPI Camera Device") |
| .enable_dev = camera_enable |
| }; |