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