diff options
Diffstat (limited to 'drivers/hid/amd-sfh-hid/amd_sfh_pcie.h')
-rw-r--r-- | drivers/hid/amd-sfh-hid/amd_sfh_pcie.h | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/drivers/hid/amd-sfh-hid/amd_sfh_pcie.h b/drivers/hid/amd-sfh-hid/amd_sfh_pcie.h new file mode 100644 index 000000000000..e8be94f935b7 --- /dev/null +++ b/drivers/hid/amd-sfh-hid/amd_sfh_pcie.h @@ -0,0 +1,79 @@ +/* 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; + u32 activecontrolstatus; +}; + +struct amd_mp2_sensor_info { + u8 sensor_idx; + u32 period; + phys_addr_t phys_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 |