1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /*
3  * H/W layer of ISHTP provider device (ISH)
4  *
5  * Copyright (c) 2014-2016, Intel Corporation.
6  */
7 
8 #ifndef _ISHTP_HW_ISH_H_
9 #define _ISHTP_HW_ISH_H_
10 
11 #include <linux/pci.h>
12 #include <linux/interrupt.h>
13 #include "hw-ish-regs.h"
14 #include "ishtp-dev.h"
15 
16 #define CHV_DEVICE_ID		0x22D8
17 #define BXT_Ax_DEVICE_ID	0x0AA2
18 #define BXT_Bx_DEVICE_ID	0x1AA2
19 #define APL_Ax_DEVICE_ID	0x5AA2
20 #define SPT_Ax_DEVICE_ID	0x9D35
21 #define CNL_Ax_DEVICE_ID	0x9DFC
22 #define GLK_Ax_DEVICE_ID	0x31A2
23 #define CNL_H_DEVICE_ID		0xA37C
24 #define ICL_MOBILE_DEVICE_ID	0x34FC
25 #define SPT_H_DEVICE_ID		0xA135
26 #define CML_LP_DEVICE_ID	0x02FC
27 #define EHL_Ax_DEVICE_ID	0x4BB3
28 
29 #define	REVISION_ID_CHT_A0	0x6
30 #define	REVISION_ID_CHT_Ax_SI	0x0
31 #define	REVISION_ID_CHT_Bx_SI	0x10
32 #define	REVISION_ID_CHT_Kx_SI	0x20
33 #define	REVISION_ID_CHT_Dx_SI	0x30
34 #define	REVISION_ID_CHT_B0	0xB0
35 #define	REVISION_ID_SI_MASK	0x70
36 
37 struct ipc_rst_payload_type {
38 	uint16_t	reset_id;
39 	uint16_t	reserved;
40 };
41 
42 struct time_sync_format {
43 	uint8_t ts1_source;
44 	uint8_t ts2_source;
45 	uint16_t reserved;
46 } __packed;
47 
48 struct ipc_time_update_msg {
49 	uint64_t primary_host_time;
50 	struct time_sync_format sync_info;
51 	uint64_t secondary_host_time;
52 } __packed;
53 
54 enum {
55 	HOST_UTC_TIME_USEC = 0,
56 	HOST_SYSTEM_TIME_USEC = 1
57 };
58 
59 struct ish_hw {
60 	void __iomem *mem_addr;
61 };
62 
63 /*
64  * ISH FW status type
65  */
66 enum {
67 	FWSTS_AFTER_RESET		= 0,
68 	FWSTS_WAIT_FOR_HOST		= 4,
69 	FWSTS_START_KERNEL_DMA		= 5,
70 	FWSTS_FW_IS_RUNNING		= 7,
71 	FWSTS_SENSOR_APP_LOADED		= 8,
72 	FWSTS_SENSOR_APP_RUNNING	= 15
73 };
74 
75 #define to_ish_hw(dev) (struct ish_hw *)((dev)->hw)
76 
77 irqreturn_t ish_irq_handler(int irq, void *dev_id);
78 struct ishtp_device *ish_dev_init(struct pci_dev *pdev);
79 int ish_hw_start(struct ishtp_device *dev);
80 void ish_device_disable(struct ishtp_device *dev);
81 int ish_disable_dma(struct ishtp_device *dev);
82 
83 #endif /* _ISHTP_HW_ISH_H_ */
84