xref: /linux/drivers/hid/intel-ish-hid/ipc/hw-ish.h (revision e9f0878c4b2004ac19581274c1ae4c61ae3ca70e)
1 /*
2  * H/W layer of ISHTP provider device (ISH)
3  *
4  * Copyright (c) 2014-2016, Intel Corporation.
5  *
6  * This program is free software; you can redistribute it and/or modify it
7  * under the terms and conditions of the GNU General Public License,
8  * version 2, as published by the Free Software Foundation.
9  *
10  * This program is distributed in the hope it will be useful, but WITHOUT
11  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12  * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
13  * more details.
14  */
15 
16 #ifndef _ISHTP_HW_ISH_H_
17 #define _ISHTP_HW_ISH_H_
18 
19 #include <linux/pci.h>
20 #include <linux/interrupt.h>
21 #include "hw-ish-regs.h"
22 #include "ishtp-dev.h"
23 
24 #define CHV_DEVICE_ID		0x22D8
25 #define BXT_Ax_DEVICE_ID	0x0AA2
26 #define BXT_Bx_DEVICE_ID	0x1AA2
27 #define APL_Ax_DEVICE_ID	0x5AA2
28 #define SPT_Ax_DEVICE_ID	0x9D35
29 #define CNL_Ax_DEVICE_ID	0x9DFC
30 #define GLK_Ax_DEVICE_ID	0x31A2
31 #define CNL_H_DEVICE_ID		0xA37C
32 
33 #define	REVISION_ID_CHT_A0	0x6
34 #define	REVISION_ID_CHT_Ax_SI	0x0
35 #define	REVISION_ID_CHT_Bx_SI	0x10
36 #define	REVISION_ID_CHT_Kx_SI	0x20
37 #define	REVISION_ID_CHT_Dx_SI	0x30
38 #define	REVISION_ID_CHT_B0	0xB0
39 #define	REVISION_ID_SI_MASK	0x70
40 
41 struct ipc_rst_payload_type {
42 	uint16_t	reset_id;
43 	uint16_t	reserved;
44 };
45 
46 struct time_sync_format {
47 	uint8_t ts1_source;
48 	uint8_t ts2_source;
49 	uint16_t reserved;
50 } __packed;
51 
52 struct ipc_time_update_msg {
53 	uint64_t primary_host_time;
54 	struct time_sync_format sync_info;
55 	uint64_t secondary_host_time;
56 } __packed;
57 
58 enum {
59 	HOST_UTC_TIME_USEC = 0,
60 	HOST_SYSTEM_TIME_USEC = 1
61 };
62 
63 struct ish_hw {
64 	void __iomem *mem_addr;
65 };
66 
67 /*
68  * ISH FW status type
69  */
70 enum {
71 	FWSTS_AFTER_RESET		= 0,
72 	FWSTS_WAIT_FOR_HOST		= 4,
73 	FWSTS_START_KERNEL_DMA		= 5,
74 	FWSTS_FW_IS_RUNNING		= 7,
75 	FWSTS_SENSOR_APP_LOADED		= 8,
76 	FWSTS_SENSOR_APP_RUNNING	= 15
77 };
78 
79 #define to_ish_hw(dev) (struct ish_hw *)((dev)->hw)
80 
81 irqreturn_t ish_irq_handler(int irq, void *dev_id);
82 struct ishtp_device *ish_dev_init(struct pci_dev *pdev);
83 int ish_hw_start(struct ishtp_device *dev);
84 void ish_device_disable(struct ishtp_device *dev);
85 
86 #endif /* _ISHTP_HW_ISH_H_ */
87