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
30 enum cmd_id {
31 NO_OP,
32 ENABLE_SENSOR,
33 DISABLE_SENSOR,
34 STOP_ALL_SENSORS = 8,
35 };
36
37 struct amd_mp2_sensor_info {
38 u8 sensor_idx;
39 u32 period;
40 dma_addr_t dma_address;
41 };
42
43 struct sfh_dev_status {
44 bool is_hpd_present;
45 bool is_hpd_enabled;
46 bool is_als_present;
47 bool is_sra_present;
48 };
49
50 struct amd_mp2_dev {
51 struct pci_dev *pdev;
52 struct amdtp_cl_data *cl_data;
53 void __iomem *mmio;
54 void __iomem *vsbase;
55 const struct amd_sfh1_1_ops *sfh1_1_ops;
56 struct amd_mp2_ops *mp2_ops;
57 struct amd_input_data in_data;
58 /* mp2 active control status */
59 u32 mp2_acs;
60 struct sfh_dev_status dev_en;
61 struct work_struct work;
62 u8 init_done;
63 u8 rver;
64 };
65
66 struct amd_mp2_ops {
67 void (*start)(struct amd_mp2_dev *privdata, struct amd_mp2_sensor_info info);
68 void (*stop)(struct amd_mp2_dev *privdata, u16 sensor_idx);
69 void (*stop_all)(struct amd_mp2_dev *privdata);
70 int (*response)(struct amd_mp2_dev *mp2, u8 sid, u32 sensor_sts);
71 void (*clear_intr)(struct amd_mp2_dev *privdata);
72 int (*init_intr)(struct amd_mp2_dev *privdata);
73 int (*discovery_status)(struct amd_mp2_dev *privdata);
74 void (*suspend)(struct amd_mp2_dev *mp2);
75 void (*resume)(struct amd_mp2_dev *mp2);
76 void (*remove)(void *privdata);
77 int (*get_rep_desc)(int sensor_idx, u8 rep_desc[]);
78 u32 (*get_desc_sz)(int sensor_idx, int descriptor_name);
79 u8 (*get_feat_rep)(int sensor_idx, int report_id, u8 *feature_report);
80 u8 (*get_in_rep)(u8 current_index, int sensor_idx, int report_id,
81 struct amd_input_data *in_data);
82 };
83
84 void amd_sfh_work(struct work_struct *work);
85 void amd_sfh_work_buffer(struct work_struct *work);
86 void amd_sfh_clear_intr_v2(struct amd_mp2_dev *privdata);
87 int amd_sfh_irq_init_v2(struct amd_mp2_dev *privdata);
88 void amd_sfh_clear_intr(struct amd_mp2_dev *privdata);
89 int amd_sfh_irq_init(struct amd_mp2_dev *privdata);
90
amd_get_c2p_val(struct amd_mp2_dev * mp2,u32 idx)91 static inline u64 amd_get_c2p_val(struct amd_mp2_dev *mp2, u32 idx)
92 {
93 return mp2->rver == 1 ? AMD_C2P_MSG_V1(idx) : AMD_C2P_MSG(idx);
94 }
95
amd_get_p2c_val(struct amd_mp2_dev * mp2,u32 idx)96 static inline u64 amd_get_p2c_val(struct amd_mp2_dev *mp2, u32 idx)
97 {
98 return mp2->rver == 1 ? AMD_P2C_MSG_V1(idx) : AMD_P2C_MSG(idx);
99 }
100 #endif
101