1/* SPDX-License-Identifier: GPL-2.0-or-later */
2/*
3 * AMD MP2 common macros and structures
4 *
5 * Copyright (c) 2022, Advanced Micro Devices, Inc.
6 * All Rights Reserved.
7 *
8 * Author: Basavaraj Natikar <Basavaraj.Natikar@amd.com>
9 */
10#ifndef AMD_SFH_COMMON_H
11#define AMD_SFH_COMMON_H
12
13#include <linux/pci.h>
14#include "amd_sfh_hid.h"
15
16#define PCI_DEVICE_ID_AMD_MP2 0x15E4
17#define PCI_DEVICE_ID_AMD_MP2_1_1 0x164A
18
19#define AMD_C2P_MSG(regno) (0x10500 + ((regno) * 4))
20#define AMD_P2C_MSG(regno) (0x10680 + ((regno) * 4))
21
22#define AMD_C2P_MSG_V1(regno) (0x10900 + ((regno) * 4))
23#define AMD_P2C_MSG_V1(regno) (0x10500 + ((regno) * 4))
24
25#define SENSOR_ENABLED 4
26#define SENSOR_DISABLED 5
27
28#define AMD_SFH_IDLE_LOOP 200
29
30enum cmd_id {
31 NO_OP,
32 ENABLE_SENSOR,
33 DISABLE_SENSOR,
34 STOP_ALL_SENSORS = 8,
35};
36
37struct amd_mp2_sensor_info {
38 u8 sensor_idx;
39 u32 period;
40 dma_addr_t dma_address;
41};
42
43struct sfh_dev_status {
44 bool is_hpd_present;
45 bool is_als_present;
46};
47
48struct amd_mp2_dev {
49 struct pci_dev *pdev;
50 struct amdtp_cl_data *cl_data;
51 void __iomem *mmio;
52 void __iomem *vsbase;
53 const struct amd_sfh1_1_ops *sfh1_1_ops;
54 struct amd_mp2_ops *mp2_ops;
55 struct amd_input_data in_data;
56 /* mp2 active control status */
57 u32 mp2_acs;
58 struct sfh_dev_status dev_en;
59 struct work_struct work;
60 u8 init_done;
61 u8 rver;
62};
63
64struct amd_mp2_ops {
65 void (*start)(struct amd_mp2_dev *privdata, struct amd_mp2_sensor_info info);
66 void (*stop)(struct amd_mp2_dev *privdata, u16 sensor_idx);
67 void (*stop_all)(struct amd_mp2_dev *privdata);
68 int (*response)(struct amd_mp2_dev *mp2, u8 sid, u32 sensor_sts);
69 void (*clear_intr)(struct amd_mp2_dev *privdata);
70 int (*init_intr)(struct amd_mp2_dev *privdata);
71 int (*discovery_status)(struct amd_mp2_dev *privdata);
72 void (*suspend)(struct amd_mp2_dev *mp2);
73 void (*resume)(struct amd_mp2_dev *mp2);
74 void (*remove)(void *privdata);
75 int (*get_rep_desc)(int sensor_idx, u8 rep_desc[]);
76 u32 (*get_desc_sz)(int sensor_idx, int descriptor_name);
77 u8 (*get_feat_rep)(int sensor_idx, int report_id, u8 *feature_report);
78 u8 (*get_in_rep)(u8 current_index, int sensor_idx, int report_id,
79 struct amd_input_data *in_data);
80};
81
82void amd_sfh_work(struct work_struct *work);
83void amd_sfh_work_buffer(struct work_struct *work);
84void amd_sfh_clear_intr_v2(struct amd_mp2_dev *privdata);
85int amd_sfh_irq_init_v2(struct amd_mp2_dev *privdata);
86void amd_sfh_clear_intr(struct amd_mp2_dev *privdata);
87int amd_sfh_irq_init(struct amd_mp2_dev *privdata);
88
89static inline u64 amd_get_c2p_val(struct amd_mp2_dev *mp2, u32 idx)
90{
91 return mp2->rver == 1 ? AMD_C2P_MSG_V1(idx) : AMD_C2P_MSG(idx);
92}
93
94static inline u64 amd_get_p2c_val(struct amd_mp2_dev *mp2, u32 idx)
95{
96 return mp2->rver == 1 ? AMD_P2C_MSG_V1(idx) : AMD_P2C_MSG(idx);
97}
98#endif
99

source code of linux/drivers/hid/amd-sfh-hid/amd_sfh_common.h