/* * Set up External Temperature to read via thermal diode/resistor * into TMPINx register */ static void it8772f_enable_tmpin(struct resource *res, int tmpin, enum thermal_mode mode) { u8 reg; if (tmpin != 1 && tmpin != 2) return; reg = it8772f_envc_read(res, IT8772F_ADC_TEMP_CHANNEL_ENABLE); switch (mode) { case THERMAL_DIODE: /* Thermal Diode Mode */ it8772f_envc_write(res, IT8772F_ADC_TEMP_CHANNEL_ENABLE, reg | tmpin); break; case THERMAL_RESISTOR: /* Thermal Resistor Mode */ it8772f_envc_write(res, IT8772F_ADC_TEMP_CHANNEL_ENABLE, reg | (tmpin << 3)); break; default: printk(BIOS_ERR, "Unsupported thermal mode 0x%x on TMPIN%d\n", mode, tmpin); return; } reg = it8772f_envc_read(res, IT8772F_CONFIGURATION); /* Enable the startup of monitoring operation */ it8772f_envc_write(res, IT8772F_CONFIGURATION, reg | 0x01); }
static void it8772f_extemp_force_idle_status(struct resource *res) { u8 reg; int retries = 10; /* Wait up to 10ms for non-busy state. */ while (retries > 0) { reg = it8772f_envc_read(res, IT8772F_EXTEMP_STATUS); if ((reg & IT8772F_EXTEMP_STATUS_HOST_BUSY) == 0x0) break; retries--; mdelay(1); } if (retries == 0 && (reg & IT8772F_EXTEMP_STATUS_HOST_BUSY) == 0x1) { /* * SIO is busy due to unfinished peci transaction. * Re-configure Register 0x8E to terminate processes. */ it8772f_envc_write(res, IT8772F_EXTEMP_CONTROL, IT8772F_EXTEMP_CONTROL_AUTO_4HZ | IT8772F_EXTEMP_CONTROL_AUTO_START); } }
/* * Setup External Temperature to read via PECI into TMPINx register */ static void it8772f_enable_peci(struct resource *res, int tmpin) { if (tmpin < 1 || tmpin > 3) return; /* Enable PECI interface */ it8772f_envc_write(res, IT8772F_INTERFACE_SELECT, IT8772F_INTERFACE_SEL_PECI | IT8772F_INTERFACE_SPEED_TOLERANCE); /* Setup External Temperature using PECI GetTemp */ it8772f_envc_write(res, IT8772F_EXTEMP_ADDRESS, PECI_CLIENT_ADDRESS); it8772f_envc_write(res, IT8772F_EXTEMP_COMMAND, PECI_GETTEMP_COMMAND); it8772f_envc_write(res, IT8772F_EXTEMP_WRITE_LENGTH, PECI_GETTEMP_WRITE_LENGTH); it8772f_envc_write(res, IT8772F_EXTEMP_READ_LENGTH, PECI_GETTEMP_READ_LENGTH); it8772f_envc_write(res, IT8772F_EXTEMP_CONTROL, IT8772F_EXTEMP_CONTROL_AUTO_4HZ | IT8772F_EXTEMP_CONTROL_AUTO_START); /* External Temperature reported in TMPINx register */ it8772f_envc_write(res, IT8772F_ADC_TEMP_CHANNEL_ENABLE, (tmpin & 3) << 6); }
/* * Setup a FAN PWM interface for software control */ static void it8772f_enable_fan(struct resource *res, int fan, u8 fan_speed) { u8 reg; if (fan < 1 || fan > 3) return; /* Enable 6MHz (23.43kHz PWM) active high output */ reg = it8772f_envc_read(res, IT8772F_FAN_CTL_MODE); reg |= IT8772F_FAN_CTL_ON(fan) | IT8772F_FAN_PWM_CLOCK_6MHZ | IT8772F_FAN_CTL_POLARITY_HIGH; it8772f_envc_write(res, IT8772F_FAN_CTL_MODE, reg); /* Enable output in smart mode */ reg = it8772f_envc_read(res, IT8772F_FAN_MAIN_CTL); reg |= IT8772F_FAN_MAIN_CTL_TAC_SMART(fan); reg |= IT8772F_FAN_MAIN_CTL_TAC_EN(fan); it8772f_envc_write(res, IT8772F_FAN_MAIN_CTL, reg); switch (fan) { case 2: /* Enable software operation */ it8772f_envc_write(res, IT8772F_FAN_CTL2_PWM_MODE, IT8772F_FAN_CTL_PWM_MODE_SOFTWARE); /* Disable Smoothing */ it8772f_envc_write(res, IT8772F_FAN_CTL2_AUTO_MODE, IT8772F_FAN_CTL_AUTO_SMOOTHING_DIS); /* Set a default fan speed */ if (fan_speed) it8772f_envc_write(res, IT8772F_FAN_CTL2_PWM_START, fan_speed); break; case 3: /* Enable software operation */ it8772f_envc_write(res, IT8772F_FAN_CTL3_PWM_MODE, IT8772F_FAN_CTL_PWM_MODE_SOFTWARE); /* Disable Smoothing */ it8772f_envc_write(res, IT8772F_FAN_CTL3_AUTO_MODE, IT8772F_FAN_CTL_AUTO_SMOOTHING_DIS); /* Set a default fan speed */ if (fan_speed) it8772f_envc_write(res, IT8772F_FAN_CTL3_PWM_START, fan_speed); break; } }