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/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* AMD MP2 PCIe communication driver
* Copyright 2020 Advanced Micro Devices, Inc.
* Authors: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
* Sandeep Singh <Sandeep.singh@amd.com>
*/
#ifndef PCIE_MP2_AMD_H
#define PCIE_MP2_AMD_H
#include <linux/pci.h>
#define PCI_DEVICE_ID_AMD_MP2 0x15E4
#define ENABLE_SENSOR 1
#define DISABLE_SENSOR 2
#define STOP_ALL_SENSORS 8
/* MP2 C2P Message Registers */
#define AMD_C2P_MSG0 0x10500
#define AMD_C2P_MSG1 0x10504
#define AMD_C2P_MSG2 0x10508
/* MP2 P2C Message Registers */
#define AMD_P2C_MSG3 0x1068C /* Supported Sensors info */
/* SFH Command register */
union sfh_cmd_base {
u32 ul;
struct {
u32 cmd_id : 8;
u32 sensor_id : 8;
u32 period : 16;
} s;
};
union sfh_cmd_param {
u32 ul;
struct {
u32 buf_layout : 2;
u32 buf_length : 6;
u32 rsvd : 24;
} s;
};
struct sfh_cmd_reg {
union sfh_cmd_base cmd_base;
union sfh_cmd_param cmd_param;
phys_addr_t phys_addr;
};
enum sensor_idx {
accel_idx = 0,
gyro_idx = 1,
mag_idx = 2,
als_idx = 19
};
struct amd_mp2_dev {
struct pci_dev *pdev;
struct amdtp_cl_data *cl_data;
void __iomem *mmio;
};
struct amd_mp2_sensor_info {
u8 sensor_idx;
u32 period;
dma_addr_t dma_address;
};
void amd_start_sensor(struct amd_mp2_dev *privdata, struct amd_mp2_sensor_info info);
void amd_stop_sensor(struct amd_mp2_dev *privdata, u16 sensor_idx);
void amd_stop_all_sensors(struct amd_mp2_dev *privdata);
int amd_mp2_get_sensor_num(struct amd_mp2_dev *privdata, u8 *sensor_id);
int amd_sfh_hid_client_init(struct amd_mp2_dev *privdata);
int amd_sfh_hid_client_deinit(struct amd_mp2_dev *privdata);
#endif
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