| #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> |
| |
| #define ADM1026_DEVICE 0x2d /* Either 0x2c or 0x2d or 0x2e */ |
| #define ADM1026_REG_CONFIG1 0x00 |
| #define CFG1_MONITOR 0x01 |
| #define CFG1_INT_ENABLE 0x02 |
| #define CFG1_INT_CLEAR 0x04 |
| #define CFG1_AIN8_9 0x08 |
| #define CFG1_THERM_HOT 0x10 |
| #define CFT1_DAC_AFC 0x20 |
| #define CFG1_PWM_AFC 0x40 |
| #define CFG1_RESET 0x80 |
| #define ADM1026_REG_CONFIG2 0x01 |
| #define ADM1026_REG_CONFIG3 0x07 |
| |
| static void adm1026_enable_monitoring(device_t dev) |
| { |
| int result; |
| result = smbus_read_byte(dev, ADM1026_REG_CONFIG1); |
| |
| result = (result | CFG1_MONITOR) & ~(CFG1_INT_CLEAR | CFG1_RESET); |
| result = smbus_write_byte(dev, ADM1026_REG_CONFIG1, result); |
| |
| result = smbus_read_byte(dev, ADM1026_REG_CONFIG1); |
| if (!(result & CFG1_MONITOR)) { |
| printk(BIOS_DEBUG, "ADM1026: monitoring would not enable"); |
| } |
| } |
| |
| static void adm1026_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 |
| adm1026_enable_monitoring(dev); |
| } |
| } |
| } |
| |
| static void adm1026_noop(device_t dummy) |
| { |
| } |
| |
| static struct device_operations adm1026_operations = { |
| .read_resources = adm1026_noop, |
| .set_resources = adm1026_noop, |
| .enable_resources = adm1026_noop, |
| .init = adm1026_init, |
| }; |
| |
| static void enable_dev(struct device *dev) |
| { |
| dev->ops = &adm1026_operations; |
| } |
| |
| struct chip_operations drivers_i2c_adm1026_ops = { |
| CHIP_NAME("adm1026") |
| .enable_dev = enable_dev, |
| }; |