/* SPDX-License-Identifier: GPL-2.0-or-later */ #include #include #include #include #include #include #include #include #include "chip.h" /* FIXME */ #include "it8772f.h" /* FIXME: see if the common ITE environment controller code can be used here */ 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 = pnp_read_hwm5_index(res->base, 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. */ pnp_write_hwm5_index(res->base, 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 */ pnp_write_hwm5_index(res->base, IT8772F_INTERFACE_SELECT, IT8772F_INTERFACE_SEL_PECI | IT8772F_INTERFACE_SPEED_TOLERANCE); /* Setup External Temperature using PECI GetTemp */ pnp_write_hwm5_index(res->base, IT8772F_EXTEMP_ADDRESS, PECI_CLIENT_ADDRESS); pnp_write_hwm5_index(res->base, IT8772F_EXTEMP_COMMAND, PECI_GETTEMP_COMMAND); pnp_write_hwm5_index(res->base, IT8772F_EXTEMP_WRITE_LENGTH, PECI_GETTEMP_WRITE_LENGTH); pnp_write_hwm5_index(res->base, IT8772F_EXTEMP_READ_LENGTH, PECI_GETTEMP_READ_LENGTH); pnp_write_hwm5_index(res->base, IT8772F_EXTEMP_CONTROL, IT8772F_EXTEMP_CONTROL_AUTO_4HZ | IT8772F_EXTEMP_CONTROL_AUTO_START); /* External Temperature reported in TMPINx register */ pnp_write_hwm5_index(res->base, IT8772F_ADC_TEMP_CHANNEL_ENABLE, (tmpin & 3) << 6); } /* * 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 = pnp_read_hwm5_index(res->base, IT8772F_ADC_TEMP_CHANNEL_ENABLE); switch (mode) { case THERMAL_DIODE: /* Thermal Diode Mode */ pnp_write_hwm5_index(res->base, IT8772F_ADC_TEMP_CHANNEL_ENABLE, reg | tmpin); break; case THERMAL_RESISTOR: /* Thermal Resistor Mode */ pnp_write_hwm5_index(res->base, 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 = pnp_read_hwm5_index(res->base, IT8772F_CONFIGURATION); /* Enable the startup of monitoring operation */ pnp_write_hwm5_index(res->base, IT8772F_CONFIGURATION, reg | 0x01); } /* * 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 = pnp_read_hwm5_index(res->base, IT8772F_FAN_CTL_MODE); reg |= IT8772F_FAN_CTL_ON(fan) | IT8772F_FAN_PWM_CLOCK_6MHZ | IT8772F_FAN_CTL_POLARITY_HIGH; pnp_write_hwm5_index(res->base, IT8772F_FAN_CTL_MODE, reg); /* Enable output in smart mode */ reg = pnp_read_hwm5_index(res->base, IT8772F_FAN_MAIN_CTL); reg |= IT8772F_FAN_MAIN_CTL_TAC_SMART(fan); reg |= IT8772F_FAN_MAIN_CTL_TAC_EN(fan); pnp_write_hwm5_index(res->base, IT8772F_FAN_MAIN_CTL, reg); switch (fan) { case 2: /* Enable software operation */ pnp_write_hwm5_index(res->base, IT8772F_FAN_CTL2_PWM_MODE, IT8772F_FAN_CTL_PWM_MODE_SOFTWARE); /* Disable Smoothing */ pnp_write_hwm5_index(res->base, IT8772F_FAN_CTL2_AUTO_MODE, IT8772F_FAN_CTL_AUTO_SMOOTHING_DIS); /* Set a default fan speed */ if (fan_speed) pnp_write_hwm5_index(res->base, IT8772F_FAN_CTL2_PWM_START, fan_speed); break; case 3: /* Enable software operation */ pnp_write_hwm5_index(res->base, IT8772F_FAN_CTL3_PWM_MODE, IT8772F_FAN_CTL_PWM_MODE_SOFTWARE); /* Disable Smoothing */ pnp_write_hwm5_index(res->base, IT8772F_FAN_CTL3_AUTO_MODE, IT8772F_FAN_CTL_AUTO_SMOOTHING_DIS); /* Set a default fan speed */ if (fan_speed) pnp_write_hwm5_index(res->base, IT8772F_FAN_CTL3_PWM_START, fan_speed); break; } } static void it8772f_init(struct device *dev) { struct superio_ite_it8772f_config *conf = dev->chip_info; struct resource *res; if (!dev->enabled) return; switch (dev->path.pnp.device) { case IT8772F_EC: res = probe_resource(dev, PNP_IDX_IO0); if (!res) break; /* Enable PECI if configured */ it8772f_enable_peci(res, conf->peci_tmpin); /* Enable HWM if configured */ if (conf->tmpin1_mode != THERMAL_MODE_DISABLED) it8772f_enable_tmpin(res, 1, conf->tmpin1_mode); if (conf->tmpin2_mode != THERMAL_MODE_DISABLED) it8772f_enable_tmpin(res, 2, conf->tmpin2_mode); /* Enable FANx if configured */ if (conf->fan1_enable) it8772f_enable_fan(res, 1, 0); if (conf->fan2_enable) it8772f_enable_fan(res, 2, conf->fan2_speed ? conf->fan2_speed : 0x80); if (conf->fan3_enable) it8772f_enable_fan(res, 3, conf->fan3_speed ? conf->fan3_speed : 0x80); /* * System may get wrong temperature data when SIO is in * busy state. Therefore, check the status and terminate * processes if needed. */ it8772f_extemp_force_idle_status(res); break; case IT8772F_GPIO: /* Set GPIO output levels */ res = probe_resource(dev, PNP_IDX_IO1); if (res) { if (conf->gpio_set1) outb(conf->gpio_set1, res->base + 0); if (conf->gpio_set2) outb(conf->gpio_set2, res->base + 1); if (conf->gpio_set3) outb(conf->gpio_set3, res->base + 2); if (conf->gpio_set4) outb(conf->gpio_set4, res->base + 3); if (conf->gpio_set5) outb(conf->gpio_set5, res->base + 4); if (conf->gpio_set6) outb(conf->gpio_set6, res->base + 5); } break; case IT8772F_KBCK: if (!conf->skip_keyboard) { set_kbc_ps2_mode(); pc_keyboard_init(NO_AUX_DEVICE); } break; case IT8772F_KBCM: break; case IT8772F_IR: break; } } static struct device_operations ops = { .read_resources = pnp_read_resources, .set_resources = pnp_set_resources, .enable_resources = pnp_enable_resources, .enable = pnp_alt_enable, .init = it8772f_init, .ops_pnp_mode = &pnp_conf_mode_870155_aa, }; static struct pnp_info pnp_dev_info[] = { /* Floppy Disk Controller */ { NULL, IT8772F_FDC, PNP_IO0 | PNP_IRQ0, 0x0ff8, }, /* Serial Port 1 */ { NULL, IT8772F_SP1, PNP_IO0 | PNP_IRQ0, 0x0ff8, }, /* Environmental Controller */ { NULL, IT8772F_EC, PNP_IO0 | PNP_IO1 | PNP_IRQ0 | PNP_MSC4 | PNP_MSCA, 0x0ff8, 0x0ffc, }, /* KBC Keyboard */ { NULL, IT8772F_KBCK, PNP_IO0 | PNP_IO1 | PNP_IRQ0, 0x0fff, 0x0fff, }, /* KBC Mouse */ { NULL, IT8772F_KBCM, PNP_IRQ0, }, /* 27 GPIOs */ { NULL, IT8772F_GPIO, PNP_IO0 | PNP_IO1, 0x0fff, 0x0ff8, }, /* Infrared */ { NULL, IT8772F_IR, PNP_IO0 | PNP_IRQ0, 0x0ff8, }, }; static void enable_dev(struct device *dev) { pnp_enable_devices(dev, &ops, ARRAY_SIZE(pnp_dev_info), pnp_dev_info); } struct chip_operations superio_ite_it8772f_ops = { .name = "ITE IT8772F Super I/O", .enable_dev = enable_dev, };