#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 <part/hard_reset.h>
#include <cpu/x86/msr.h>
#include "chip.h"

#define ADM1027_REG_CONFIG1 0x40
#define CFG1_STRT     	0x01
#define CFG1_LOCK  	0x02
#define CFG1_RDY	0x04
#define CFG1_FSPD       0x08
#define CFG1_VXI	0x10
#define CFT1_FSPDIS     0x20
#define CFG1_TODIS     	0x40
#define CFG1_VCC	0x80
#define ADM1027_REG_CONFIG2 0x73
#define ADM1027_REG_CONFIG3 0x78

static void adm1027_enable_monitoring(device_t dev)
{        
        int result;
        result = smbus_read_byte(dev, ADM1027_REG_CONFIG1);
       
	if(!(result & CFG1_RDY) ) { 
		printk_debug("ADM1027: monitoring not ready\r\n");
		return;
	}
        result = (result | CFG1_STRT);
        result = smbus_write_byte(dev, ADM1027_REG_CONFIG1, result);
        
        result = smbus_read_byte(dev, ADM1027_REG_CONFIG1);
        if (!(result & CFG1_STRT)) {
                printk_debug("ADM1027: monitoring would not enable\r\n");
        }
	printk_debug("ADM1027: monitoring enabled\r\n");
}

static void adm1027_init(device_t dev)
{
	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 
			adm1027_enable_monitoring(dev);
		}
		
	}

}
static void adm1027_noop(device_t dummy)
{
}

static struct device_operations adm1027_operations = {
        .read_resources   = adm1027_noop,
        .set_resources    = adm1027_noop,
        .enable_resources = adm1027_noop,
        .init             = adm1027_init,
};

static void enable_dev(struct device *dev)
{
	dev->ops = &adm1027_operations;
}

struct chip_operations drivers_i2c_adm1027_ops = {
	CHIP_NAME("adm1027")
	.enable_dev = enable_dev, 
};