drivers/intel/mipi_camera: Add MIPI CSI camera SSDT generator
Add SSDT generator for MIPI CSI camera to create ACPI objects used by the Intel kernel drivers. * SSDB: Sensor specific database for camera sensor. * PWDB: Power database for all the camera devices. * CAMD: ACPI object to specify the camera device type. BUG=b:36580624 BRANCH=none TEST=Build and boot poppy. Dump and verify that the generated SSDT table has the required entries. Change-Id: Ief9e56d12b64081897613bf1c7abcdf915470b99 Signed-off-by: Rizwan Qureshi <rizwan.qureshi@intel.com> Signed-off-by: Sowmya V <v.sowmya@intel.com> Reviewed-on: https://review.coreboot.org/18967 Reviewed-by: Martin Roth <martinroth@google.com> Tested-by: build bot (Jenkins)
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V Sowmya
Martin Roth
parent
fa7d0a857d
commit
9f8023a869
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config DRIVERS_INTEL_MIPI_CAMERA
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bool
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depends on HAVE_ACPI_TABLES
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default n
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help
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MIPI CSI I2C camera SSDT generator. Generates SSDB and PWDB
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structures which are used by the Intel kernel drivers.
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ramstage-$(CONFIG_DRIVERS_INTEL_MIPI_CAMERA) += camera.c
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/*
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* This file is part of the coreboot project.
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*
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* Copyright (C) 2017 Intel Corporation.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#include <arch/acpi.h>
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#include <arch/acpi_device.h>
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#include <arch/acpigen.h>
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#include <console/console.h>
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#include <device/i2c.h>
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#include <device/device.h>
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#include <device/path.h>
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#include <string.h>
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#include "chip.h"
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static void camera_fill_ssdt(struct device *dev)
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{
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struct drivers_intel_mipi_camera_config *config = dev->chip_info;
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const char *scope = acpi_device_scope(dev);
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struct acpi_i2c i2c = {
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.address = dev->path.i2c.device,
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.mode_10bit = dev->path.i2c.mode_10bit,
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.speed = I2C_SPEED_FAST,
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.resource = scope,
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};
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if (!dev->enabled || !scope)
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return;
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/* Device */
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acpigen_write_scope(scope);
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acpigen_write_device(acpi_device_name(dev));
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acpigen_write_name_string("_HID", config->acpi_hid);
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acpigen_write_name_integer("_UID", config->acpi_uid);
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acpigen_write_name_string("_DDN", config->chip_name);
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acpigen_write_STA(ACPI_STATUS_DEVICE_ALL_ON);
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/* Resources */
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acpigen_write_name("_CRS");
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acpigen_write_resourcetemplate_header();
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acpi_device_write_i2c(&i2c);
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acpigen_write_resourcetemplate_footer();
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/* Mark it as Camera related device */
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acpigen_write_name_integer("CAMD", config->device_type);
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/* Create Device specific data */
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if (config->device_type == INTEL_ACPI_CAMERA_SENSOR) {
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acpigen_write_method_serialized("SSDB", 0);
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acpigen_write_return_byte_buffer((uint8_t *)&config->ssdb,
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sizeof(config->ssdb));
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acpigen_pop_len(); /* Method */
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}
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/* Fill Power Sequencing Data */
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acpigen_write_method_serialized("PWDB", 0);
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acpigen_write_return_byte_buffer((uint8_t *)&config->pwdb,
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(sizeof(struct intel_pwdb) * config->num_pwdb_entries));
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acpigen_pop_len(); /* Method */
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acpigen_pop_len(); /* Device */
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acpigen_pop_len(); /* Scope */
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printk(BIOS_INFO, "%s: %s address 0%xh\n", acpi_device_path(dev),
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dev->chip_ops->name, dev->path.i2c.device);
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}
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static const char *camera_acpi_name(struct device *dev)
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{
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struct drivers_intel_mipi_camera_config *config = dev->chip_info;
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return config->acpi_name;
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}
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static struct device_operations camera_ops = {
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.read_resources = DEVICE_NOOP,
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.set_resources = DEVICE_NOOP,
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.enable_resources = DEVICE_NOOP,
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.acpi_name = &camera_acpi_name,
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.acpi_fill_ssdt_generator = &camera_fill_ssdt,
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};
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static void camera_enable(struct device *dev)
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{
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dev->ops = &camera_ops;
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}
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struct chip_operations drivers_intel_mipi_camera_ops = {
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CHIP_NAME("Intel MIPI Camera Device")
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.enable_dev = &camera_enable
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};
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/*
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* This file is part of the coreboot project.
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*
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* Copyright (C) 2017 Intel Corporation.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#ifndef __INTEL_MIPI_CAMERA_CHIP_H__
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#define __INTEL_MIPI_CAMERA_CHIP_H__
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#include <stdint.h>
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#define MAX_PWDB_ENTRIES 12
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enum intel_camera_device_type {
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INTEL_ACPI_CAMERA_CIO2,
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INTEL_ACPI_CAMERA_IMGU,
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INTEL_ACPI_CAMERA_SENSOR,
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INTEL_ACPI_CAMERA_VCM,
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INTEL_ACPI_CAMERA_PMIC = 100,
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};
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enum intel_power_action_type {
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INTEL_ACPI_CAMERA_REGULATOR,
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INTEL_ACPI_CAMERA_CLK,
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INTEL_ACPI_CAMERA_GPIO,
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};
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struct intel_ssdb {
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uint8_t version; /* Current version */
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uint8_t sensor_card_sku; /* CRD Board type */
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uint8_t csi2_data_stream_interface[16]; /* CSI2 data stream GUID */
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uint16_t bdf_value; /* Bus number of the host
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controller */
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uint32_t dphy_link_en_fuses; /* Host controller's fuses
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information used to verify if
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link is fused out or not */
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uint32_t lanes_clock_division; /* Lanes/clock divisions per
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sensor */
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uint8_t link_used; /* Link used by this sensor
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stream */
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uint8_t lanes_used; /* Number of lanes connected for
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the sensor */
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uint32_t csi_rx_dly_cnt_termen_clane; /* MIPI timing information */
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uint32_t csi_rx_dly_cnt_settle_clane; /* MIPI timing information */
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uint32_t csi_rx_dly_cnt_termen_dlane0; /* MIPI timing information */
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uint32_t csi_rx_dly_cnt_settle_dlane0; /* MIPI timing information */
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uint32_t csi_rx_dly_cnt_termen_dlane1; /* MIPI timing information */
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uint32_t csi_rx_dly_cnt_settle_dlane1; /* MIPI timing information */
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uint32_t csi_rx_dly_cnt_termen_dlane2; /* MIPI timing information */
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uint32_t csi_rx_dly_cnt_settle_dlane2; /* MIPI timing information */
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uint32_t csi_rx_dly_cnt_termen_dlane3; /* MIPI timing information */
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uint32_t csi_rx_dly_cnt_settle_dlane3; /* MIPI timing information */
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uint32_t max_lane_speed; /* Maximum lane speed for
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the sensor */
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uint8_t sensor_cal_file_idx; /* Legacy field for sensor
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calibration file index */
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uint8_t sensor_cal_file_idx_mbz[3]; /* Legacy field for sensor
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calibration file index */
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uint8_t rom_type; /* NVM type of the camera
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module */
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uint8_t vcm_type; /* VCM type of the camera
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module */
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uint8_t platform; /* Platform information */
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uint8_t platform_sub; /* Platform sub-categories */
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uint8_t flash_support; /* Enable/disable flash
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support */
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uint8_t privacy_led; /* Privacy LED support */
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uint8_t degree; /* Camera Orientation */
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uint8_t mipi_define; /* MIPI info defined in ACPI or
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sensor driver */
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uint32_t mclk; /* Clock info for sensor */
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uint8_t control_logic_id; /* PMIC device node used for
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the camera sensor */
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uint8_t mipi_data_format; /* MIPI data format */
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uint8_t silicon_version; /* Silicon version */
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uint8_t customer_id; /* Customer ID */
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} __attribute__((packed));
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struct intel_pwdb {
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char name[32]; /* Name of the resource required by the power
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action */
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uint32_t value; /* The value to be set for the power action */
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uint32_t entry_type; /* The type of the current power action */
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uint32_t delay_usec; /* The delay time after which power action is
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performed and this is in unit of usec */
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} __attribute__((packed));
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struct drivers_intel_mipi_camera_config {
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struct intel_ssdb ssdb;
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struct intel_pwdb pwdb[MAX_PWDB_ENTRIES];
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enum intel_camera_device_type device_type;
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uint8_t num_pwdb_entries;
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const char *acpi_hid;
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const char *acpi_name;
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const char *chip_name;
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unsigned int acpi_uid;
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};
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#endif
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