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 SENSOR_ENABLED			4
23 #define SENSOR_DISABLED			5
24 
25 #define AMD_SFH_IDLE_LOOP		200
26 
27 enum cmd_id {
28 	NO_OP,
29 	ENABLE_SENSOR,
30 	DISABLE_SENSOR,
31 	STOP_ALL_SENSORS = 8,
32 };
33 
34 struct amd_mp2_sensor_info {
35 	u8 sensor_idx;
36 	u32 period;
37 	dma_addr_t dma_address;
38 };
39 
40 struct amd_mp2_dev {
41 	struct pci_dev *pdev;
42 	struct amdtp_cl_data *cl_data;
43 	void __iomem *mmio;
44 	void __iomem *vsbase;
45 	const struct amd_sfh1_1_ops *sfh1_1_ops;
46 	struct amd_mp2_ops *mp2_ops;
47 	struct amd_input_data in_data;
48 	/* mp2 active control status */
49 	u32 mp2_acs;
50 };
51 
52 struct amd_mp2_ops {
53 	void (*start)(struct amd_mp2_dev *privdata, struct amd_mp2_sensor_info info);
54 	void (*stop)(struct amd_mp2_dev *privdata, u16 sensor_idx);
55 	void (*stop_all)(struct amd_mp2_dev *privdata);
56 	int (*response)(struct amd_mp2_dev *mp2, u8 sid, u32 sensor_sts);
57 	void (*clear_intr)(struct amd_mp2_dev *privdata);
58 	int (*init_intr)(struct amd_mp2_dev *privdata);
59 	int (*discovery_status)(struct amd_mp2_dev *privdata);
60 	void (*suspend)(struct amd_mp2_dev *mp2);
61 	void (*resume)(struct amd_mp2_dev *mp2);
62 	void (*remove)(void *privdata);
63 	int (*get_rep_desc)(int sensor_idx, u8 rep_desc[]);
64 	u32 (*get_desc_sz)(int sensor_idx, int descriptor_name);
65 	u8 (*get_feat_rep)(int sensor_idx, int report_id, u8 *feature_report);
66 	u8 (*get_in_rep)(u8 current_index, int sensor_idx, int report_id,
67 			 struct amd_input_data *in_data);
68 };
69 
70 void amd_sfh_work(struct work_struct *work);
71 void amd_sfh_work_buffer(struct work_struct *work);
72 void amd_sfh_clear_intr_v2(struct amd_mp2_dev *privdata);
73 int amd_sfh_irq_init_v2(struct amd_mp2_dev *privdata);
74 void amd_sfh_clear_intr(struct amd_mp2_dev *privdata);
75 int amd_sfh_irq_init(struct amd_mp2_dev *privdata);
76 #endif
77