linux-imx

/* SPDX-License-Identifier: GPL-2.0+ */

/* Copyright IBM Corp 2019 */

​

#ifndef OCC_COMMON_H

#define OCC_COMMON_H

​

#include <linux/hwmon-sysfs.h>

#include <linux/mutex.h>

#include <linux/sysfs.h>

​

struct device;

​

#define OCC_RESP_DATA_BYTES     4089

​

/*

 * Same response format for all OCC versions.

 * Allocate the largest possible response.

 */

struct occ_response {

    u8 seq_no;

    u8 cmd_type;

    u8 return_status;

    __be16 data_length;

    u8 data[OCC_RESP_DATA_BYTES];

    __be16 checksum;

} __packed;

​

struct occ_sensor_data_block_header {

    u8 eye_catcher[4];

    u8 reserved;

    u8 sensor_format;

    u8 sensor_length;

    u8 num_sensors;

} __packed;

​

struct occ_sensor_data_block {

    struct occ_sensor_data_block_header header;

    u32 data;

} __packed;

​

struct occ_poll_response_header {

    u8 status;

    u8 ext_status;

    u8 occs_present;

    u8 config_data;

    u8 occ_state;

    u8 mode;

    u8 ips_status;

    u8 error_log_id;

    __be32 error_log_start_address;

    __be16 error_log_length;

    u16 reserved;

    u8 occ_code_level[16];

    u8 eye_catcher[6];

    u8 num_sensor_data_blocks;

    u8 sensor_data_block_header_version;

} __packed;

​

struct occ_poll_response {

    struct occ_poll_response_header header;

    struct occ_sensor_data_block block;

} __packed;

​