1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
|
/* SPDX-License-Identifier: GPL-2.0 */
/*
* Copyright (C) 2025 Nuvoton Technology Corp.
*
* Nuvoton NCT6694 USB transaction and data structure.
*/
#ifndef __MFD_NCT6694_H
#define __MFD_NCT6694_H
#define NCT6694_VENDOR_ID 0x0416
#define NCT6694_PRODUCT_ID 0x200B
#define NCT6694_INT_IN_EP 0x81
#define NCT6694_BULK_IN_EP 0x02
#define NCT6694_BULK_OUT_EP 0x03
#define NCT6694_HCTRL_SET 0x40
#define NCT6694_HCTRL_GET 0x80
#define NCT6694_URB_TIMEOUT 1000
enum nct6694_irq_id {
NCT6694_IRQ_GPIO0 = 0,
NCT6694_IRQ_GPIO1,
NCT6694_IRQ_GPIO2,
NCT6694_IRQ_GPIO3,
NCT6694_IRQ_GPIO4,
NCT6694_IRQ_GPIO5,
NCT6694_IRQ_GPIO6,
NCT6694_IRQ_GPIO7,
NCT6694_IRQ_GPIO8,
NCT6694_IRQ_GPIO9,
NCT6694_IRQ_GPIOA,
NCT6694_IRQ_GPIOB,
NCT6694_IRQ_GPIOC,
NCT6694_IRQ_GPIOD,
NCT6694_IRQ_GPIOE,
NCT6694_IRQ_GPIOF,
NCT6694_IRQ_CAN0,
NCT6694_IRQ_CAN1,
NCT6694_IRQ_RTC,
NCT6694_NR_IRQS,
};
enum nct6694_response_err_status {
NCT6694_NO_ERROR = 0,
NCT6694_FORMAT_ERROR,
NCT6694_RESERVED1,
NCT6694_RESERVED2,
NCT6694_NOT_SUPPORT_ERROR,
NCT6694_NO_RESPONSE_ERROR,
NCT6694_TIMEOUT_ERROR,
NCT6694_PENDING,
};
struct __packed nct6694_cmd_header {
u8 rsv1;
u8 mod;
union __packed {
__le16 offset;
struct __packed {
u8 cmd;
u8 sel;
};
};
u8 hctrl;
u8 rsv2;
__le16 len;
};
struct __packed nct6694_response_header {
u8 sequence_id;
u8 sts;
u8 reserved[4];
__le16 len;
};
union __packed nct6694_usb_msg {
struct nct6694_cmd_header cmd_header;
struct nct6694_response_header response_header;
};
struct nct6694 {
struct device *dev;
struct ida gpio_ida;
struct ida i2c_ida;
struct ida canfd_ida;
struct ida wdt_ida;
struct irq_domain *domain;
struct mutex access_lock;
spinlock_t irq_lock;
struct urb *int_in_urb;
struct usb_device *udev;
union nct6694_usb_msg *usb_msg;
__le32 *int_buffer;
unsigned int irq_enable;
};
int nct6694_read_msg(struct nct6694 *nct6694, const struct nct6694_cmd_header *cmd_hd, void *buf);
int nct6694_write_msg(struct nct6694 *nct6694, const struct nct6694_cmd_header *cmd_hd, void *buf);
#endif
|
