forked from Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
144 lines
3.0 KiB
144 lines
3.0 KiB
/* SPDX-License-Identifier: GPL-2.0-or-later */ |
|
/* |
|
* AMD MP2 PCIe communication driver |
|
* Copyright 2020 Advanced Micro Devices, Inc. |
|
* Authors: Shyam Sundar S K <[email protected]> |
|
* Sandeep Singh <[email protected]> |
|
*/ |
|
|
|
#ifndef PCIE_MP2_AMD_H |
|
#define PCIE_MP2_AMD_H |
|
|
|
#include <linux/pci.h> |
|
#include "amd_sfh_hid.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 |
|
|
|
#define AMD_C2P_MSG(regno) (0x10500 + ((regno) * 4)) |
|
#define AMD_P2C_MSG(regno) (0x10680 + ((regno) * 4)) |
|
|
|
/* MP2 P2C Message Registers */ |
|
#define AMD_P2C_MSG3 0x1068C /* Supported Sensors info */ |
|
|
|
#define V2_STATUS 0x2 |
|
|
|
#define SENSOR_ENABLED 4 |
|
#define SENSOR_DISABLED 5 |
|
|
|
#define HPD_IDX 16 |
|
|
|
#define AMD_SFH_IDLE_LOOP 200 |
|
|
|
/* SFH Command register */ |
|
union sfh_cmd_base { |
|
u32 ul; |
|
struct { |
|
u32 cmd_id : 8; |
|
u32 sensor_id : 8; |
|
u32 period : 16; |
|
} s; |
|
struct { |
|
u32 cmd_id : 4; |
|
u32 intr_enable : 1; |
|
u32 rsvd1 : 3; |
|
u32 length : 7; |
|
u32 mem_type : 1; |
|
u32 sensor_id : 8; |
|
u32 period : 8; |
|
} cmd_v2; |
|
}; |
|
|
|
union cmd_response { |
|
u32 resp; |
|
struct { |
|
u32 status : 2; |
|
u32 out_in_c2p : 1; |
|
u32 rsvd1 : 1; |
|
u32 response : 4; |
|
u32 sub_cmd : 8; |
|
u32 sensor_id : 6; |
|
u32 rsvd2 : 10; |
|
} response_v2; |
|
}; |
|
|
|
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; |
|
const struct amd_mp2_ops *mp2_ops; |
|
struct amd_input_data in_data; |
|
/* mp2 active control status */ |
|
u32 mp2_acs; |
|
}; |
|
|
|
struct amd_mp2_sensor_info { |
|
u8 sensor_idx; |
|
u32 period; |
|
dma_addr_t dma_address; |
|
}; |
|
|
|
enum mem_use_type { |
|
USE_DRAM, |
|
USE_C2P_REG, |
|
}; |
|
|
|
struct hpd_status { |
|
union { |
|
struct { |
|
u32 human_presence_report : 4; |
|
u32 human_presence_actual : 4; |
|
u32 probablity : 8; |
|
u32 object_distance : 16; |
|
} shpd; |
|
u32 val; |
|
}; |
|
}; |
|
|
|
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); |
|
u32 amd_sfh_wait_for_response(struct amd_mp2_dev *mp2, u8 sid, u32 sensor_sts); |
|
void amd_mp2_suspend(struct amd_mp2_dev *mp2); |
|
void amd_mp2_resume(struct amd_mp2_dev *mp2); |
|
|
|
struct amd_mp2_ops { |
|
void (*start)(struct amd_mp2_dev *privdata, struct amd_mp2_sensor_info info); |
|
void (*stop)(struct amd_mp2_dev *privdata, u16 sensor_idx); |
|
void (*stop_all)(struct amd_mp2_dev *privdata); |
|
int (*response)(struct amd_mp2_dev *mp2, u8 sid, u32 sensor_sts); |
|
}; |
|
#endif
|
|
|