pm8702.h

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/*
 * Copyright (c) Meta Platforms, Inc. and affiliates.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
 
#ifndef PM8702_H
#define PM8702_H
#include "mctp.h"
#include "plat_def.h"
 
#ifdef ENABLE_PM8702
 
/*CCI (pm8702 vendor CMD) */
#define pm8702_I2C_OFFSET_READ 0xc401
#define PM8702_HBO_STATUS 0xCD00
#define PM8702_HBO_TRANSFER_FW 0xCD01
#define PM8702_HBO_ACTIVATE_FW 0xCD02
#define PM8702_READ_DIMM_TEMP 0xC531
 
/*CCI (pm8702 vendor CMD) Request paypload length */
#define I2C_OFFSET_READ_REQ_PL_LEN 20 /*Size Bytes*/
#define HBO_STATUS_REQ_PL_LEN 0
#define HBO_TRANSFER_FW_REQ_PL_LEN 256
#define HBO_ACTIVATE_FW_REQ_PL_LEN 2
#define READ_DIMM_TEMP_REQ_PL_LEN 0
 
/*CCI (pm8702 vendor CMD) Response paypload length */
#define DIMM_TEMP_READ_RESP_PL_LEN 2 /*Size Bytes*/
#define DIMM_TEMP_RESP_PL_LEN 84
 
/*PM8702_I2C_OFFSET_READ parameters */
#define ADDR_SIZE_7_BIT 0x00
#define ADDR_SIZE_10_BIT 0x01
 
#define OFFSET_SIZE_8_BIT 0x01
#define OFFSET_SIZE_16_BIT 0x02
 
#define I2C_READ_TIMEOUT_MS 1000
#define DIMM_TEMP_REG_OFFSET 0x0005 /*Refer to JEDEC SPD*/
 
/*PM8702 0xC531 return code */
#define DIMM_ERROR_VALUE 0x80
 
typedef struct __attribute__((__packed__)) {
    uint8_t addr_size;
    uint8_t rsvd_0;
    uint16_t address;
    uint8_t offset_size;
    uint8_t rsvd_1;
    uint16_t offset;
    uint32_t timeout_offset;
    uint32_t read_bytes;
    uint32_t timeout_ms;
} i2c_offset_read_req;
 
typedef struct _pm8702_hbo_status_resp {
    uint16_t cmd_opcode;
    uint8_t percent_complete : 7;
    uint8_t bo_run : 1;
    uint8_t reserved;
    uint16_t return_code;
    uint16_t vendor_status;
} pm8702_hbo_status_resp;
 
typedef struct _pm8702_command_info {
    uint16_t cmd_opcode;
    int payload_len;
    int response_len;
} pm8702_command_info;
 
typedef struct __attribute__((__packed__)) {
    uint8_t compnt_type;
    uint8_t dimm_id;
    uint8_t temp_sensor_id;
    uint8_t rsvd_0;
    uint32_t rsvd_1;
    uint32_t rsvd_2;
    uint32_t rsvd_3;
    uint8_t temp_int;
    uint8_t temp_dec;
    uint16_t rsvd_4;
} dimm_slot_info; //0xc531
 
typedef struct __attribute__((__packed__)) {
    uint8_t dimm_num;
    uint8_t flag;
    uint16_t rsvd;
} dimm_info_header; //0xc531
 
typedef enum _pm8702_access {
    chip_temp,
    dimm_temp,
    dimm_temp_from_pioneer,
} pm8702_access;
 
bool pm8702_get_dimm_temp(void *mctp_p, mctp_ext_params ext_params, uint16_t address,
              int16_t *interger, int16_t *fraction);
bool pm8702_cmd_handler(void *mctp_inst, mctp_ext_params ext_params, uint16_t opcode,
            uint8_t *data_buf, int data_len, uint8_t *response, uint8_t *response_len);
bool pm8702_read_dimm_temp_from_pioneer(void *mctp_p, mctp_ext_params ext_params, int dimm_id,
                    int16_t *temp_int, int16_t *temp_dec);
 
#endif
 
#endif