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 #define ICL_MOBILE_DEVICE_ID	0x34FC
33 #define SPT_H_DEVICE_ID		0xA135
34 #define CML_LP_DEVICE_ID	0x02FC
35 
36 #define	REVISION_ID_CHT_A0	0x6
37 #define	REVISION_ID_CHT_Ax_SI	0x0
38 #define	REVISION_ID_CHT_Bx_SI	0x10
39 #define	REVISION_ID_CHT_Kx_SI	0x20
40 #define	REVISION_ID_CHT_Dx_SI	0x30
41 #define	REVISION_ID_CHT_B0	0xB0
42 #define	REVISION_ID_SI_MASK	0x70
43 
44 struct ipc_rst_payload_type {
45 	uint16_t	reset_id;
46 	uint16_t	reserved;
47 };
48 
49 struct time_sync_format {
50 	uint8_t ts1_source;
51 	uint8_t ts2_source;
52 	uint16_t reserved;
53 } __packed;
54 
55 struct ipc_time_update_msg {
56 	uint64_t primary_host_time;
57 	struct time_sync_format sync_info;
58 	uint64_t secondary_host_time;
59 } __packed;
60 
61 enum {
62 	HOST_UTC_TIME_USEC = 0,
63 	HOST_SYSTEM_TIME_USEC = 1
64 };
65 
66 struct ish_hw {
67 	void __iomem *mem_addr;
68 };
69 
70 /*
71  * ISH FW status type
72  */
73 enum {
74 	FWSTS_AFTER_RESET		= 0,
75 	FWSTS_WAIT_FOR_HOST		= 4,
76 	FWSTS_START_KERNEL_DMA		= 5,
77 	FWSTS_FW_IS_RUNNING		= 7,
78 	FWSTS_SENSOR_APP_LOADED		= 8,
79 	FWSTS_SENSOR_APP_RUNNING	= 15
80 };
81 
82 #define to_ish_hw(dev) (struct ish_hw *)((dev)->hw)
83 
84 irqreturn_t ish_irq_handler(int irq, void *dev_id);
85 struct ishtp_device *ish_dev_init(struct pci_dev *pdev);
86 int ish_hw_start(struct ishtp_device *dev);
87 void ish_device_disable(struct ishtp_device *dev);
88 
89 #endif /* _ISHTP_HW_ISH_H_ */
90