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
|
// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (C) 2019 Ahmad Fatoum, Pengutronix
*/
#ifndef _SUPERIO_H_
#define _SUPERIO_H_
#include <asm/io.h>
#include <linux/bitops.h>
#include <driver.h>
#include <linux/types.h>
#define SIO_REG_DEVID 0x20 /* Device ID (2 bytes) */
#define SIO_REG_DEVREV 0x22 /* Device revision */
#define SIO_REG_MANID 0x23 /* Vendor ID (2 bytes) */
static inline u8 superio_inb(u16 base, u8 reg)
{
outb(reg, base);
return inb(base + 1);
}
static inline u16 superio_inw(u16 base, u8 reg)
{
u16 val;
val = superio_inb(base, reg) << 8;
val |= superio_inb(base, reg + 1);
return val;
}
static inline void superio_outb(u16 base, u8 reg, u8 val)
{
outb(reg, base);
outb(val, base + 1);
}
static inline void superio_set_bit(u16 base, u8 reg, unsigned bit)
{
unsigned long val = superio_inb(base, reg);
__set_bit(bit, &val);
superio_outb(base, reg, val);
}
static inline void superio_clear_bit(u16 base, u8 reg, unsigned bit)
{
unsigned long val = superio_inb(base, reg);
__clear_bit(bit, &val);
superio_outb(base, reg, val);
}
struct superio_chip {
struct device_d *dev;
u16 vid;
u16 devid;
u16 sioaddr;
void (*enter)(u16 sioaddr);
void (*exit)(u16 sioaddr);
};
void superio_chip_add(struct superio_chip *chip);
struct device_d *superio_func_add(struct superio_chip *chip, const char *name);
#endif
|
