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/mutex.h>
14 #include <linux/pci.h>
15 #include "amd_sfh_hid.h"
16
17 #define PCI_DEVICE_ID_AMD_MP2 0x15E4
18 #define PCI_DEVICE_ID_AMD_MP2_1_1 0x164A
19
20 #define AMD_C2P_MSG(regno) (0x10500 + ((regno) * 4))
21 #define AMD_P2C_MSG(regno) (0x10680 + ((regno) * 4))
22
23 #define AMD_C2P_MSG_V1(regno) (0x10900 + ((regno) * 4))
24 #define AMD_P2C_MSG_V1(regno) (0x10500 + ((regno) * 4))
25
26 #define SENSOR_ENABLED 4
27 #define SENSOR_DISABLED 5
28
29 #define AMD_SFH_IDLE_LOOP 200
30
31 enum cmd_id {
32 NO_OP,
33 ENABLE_SENSOR,
34 DISABLE_SENSOR,
35 STOP_ALL_SENSORS = 8,
36 };
37
38 struct amd_mp2_sensor_info {
39 u8 sensor_idx;
40 u32 period;
41 dma_addr_t dma_address;
42 };
43
44 struct sfh_dev_status {
45 bool is_hpd_present;
46 bool is_hpd_enabled;
47 bool is_als_present;
48 bool is_sra_present;
49 };
50
51 struct amd_mp2_dev {
52 struct pci_dev *pdev;
53 struct amdtp_cl_data *cl_data;
54 void __iomem *mmio;
55 void __iomem *vsbase;
56 const struct amd_sfh1_1_ops *sfh1_1_ops;
57 struct amd_mp2_ops *mp2_ops;
58 struct amd_input_data in_data;
59 /* mp2 active control status */
60 u32 mp2_acs;
61 struct sfh_dev_status dev_en;
62 struct work_struct work;
63 /* mp2 to protect data */
64 struct mutex lock;
65 u8 init_done;
66 u8 rver;
67 };
68
69 struct amd_mp2_ops {
70 void (*start)(struct amd_mp2_dev *privdata, struct amd_mp2_sensor_info info);
71 void (*stop)(struct amd_mp2_dev *privdata, u16 sensor_idx);
72 void (*stop_all)(struct amd_mp2_dev *privdata);
73 int (*response)(struct amd_mp2_dev *mp2, u8 sid, u32 sensor_sts);
74 void (*clear_intr)(struct amd_mp2_dev *privdata);
75 int (*init_intr)(struct amd_mp2_dev *privdata);
76 int (*discovery_status)(struct amd_mp2_dev *privdata);
77 void (*suspend)(struct amd_mp2_dev *mp2);
78 void (*resume)(struct amd_mp2_dev *mp2);
79 void (*remove)(void *privdata);
80 int (*get_rep_desc)(int sensor_idx, u8 rep_desc[]);
81 u32 (*get_desc_sz)(int sensor_idx, int descriptor_name);
82 u8 (*get_feat_rep)(int sensor_idx, int report_id, u8 *feature_report);
83 u8 (*get_in_rep)(u8 current_index, int sensor_idx, int report_id,
84 struct amd_input_data *in_data);
85 };
86
87 void amd_sfh_work(struct work_struct *work);
88 void amd_sfh_work_buffer(struct work_struct *work);
89 void amd_sfh_clear_intr_v2(struct amd_mp2_dev *privdata);
90 int amd_sfh_irq_init_v2(struct amd_mp2_dev *privdata);
91 void amd_sfh_clear_intr(struct amd_mp2_dev *privdata);
92 int amd_sfh_irq_init(struct amd_mp2_dev *privdata);
93
amd_get_c2p_val(struct amd_mp2_dev * mp2,u32 idx)94 static inline u64 amd_get_c2p_val(struct amd_mp2_dev *mp2, u32 idx)
95 {
96 return mp2->rver == 1 ? AMD_C2P_MSG_V1(idx) : AMD_C2P_MSG(idx);
97 }
98
amd_get_p2c_val(struct amd_mp2_dev * mp2,u32 idx)99 static inline u64 amd_get_p2c_val(struct amd_mp2_dev *mp2, u32 idx)
100 {
101 return mp2->rver == 1 ? AMD_P2C_MSG_V1(idx) : AMD_P2C_MSG(idx);
102 }
103 #endif
104