summaryrefslogtreecommitdiff
path: root/src/drivers/i2c/lm63/lm63.c
blob: 01abadc42010cf5e8219f121d2a082a46c4c1d57 (plain)
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
#include <console/console.h>
#include <device/device.h>
#include <device/smbus.h>
#include <device/pci.h>
#include <device/pci_ids.h>
#include <device/pci_ops.h>
#include <cpu/x86/msr.h>
#include "chip.h"


static void lm63_init(device_t dev)
{
	int result;
	if (dev->enabled && dev->path.type == DEVICE_PATH_I2C)
	{
		if(ops_smbus_bus(get_pbus_smbus(dev))) {
			if( dev->bus->dev->path.type == DEVICE_PATH_I2C) smbus_set_link(dev); // it is under mux 
			result = smbus_read_byte(dev, 0x03);
//			result &= ~0x04;
			result |= 0x04;
			smbus_write_byte(dev, 0x03, result & 0xff); // config lm63
		}
		
	}

}
static void lm63_noop(device_t dummy)
{
}

static struct device_operations lm63_operations = {
        .read_resources   = lm63_noop,
        .set_resources    = lm63_noop,
        .enable_resources = lm63_noop,
        .init             = lm63_init,
};

static void enable_dev(struct device *dev)
{
	dev->ops = &lm63_operations;
}

struct chip_operations drivers_i2c_lm63_ops = {
	CHIP_NAME("lm63")
	.enable_dev = enable_dev, 
};