diff options
Diffstat (limited to 'src/ec/kontron/it8516e/ec.c')
| -rw-r--r-- | src/ec/kontron/it8516e/ec.c | 175 |
1 files changed, 175 insertions, 0 deletions
diff --git a/src/ec/kontron/it8516e/ec.c b/src/ec/kontron/it8516e/ec.c new file mode 100644 index 0000000000..f4df9c777c --- /dev/null +++ b/src/ec/kontron/it8516e/ec.c @@ -0,0 +1,175 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2013 secunet Security Networks AG + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <stdlib.h> +#include <console/console.h> +#include <device/device.h> +#include <device/pnp.h> +#include <ec/acpi/ec.h> +#include <pc80/mc146818rtc.h> + +#include "ec.h" +#include "chip.h" + +typedef struct ec_kontron_it8516e_config config_t; + +enum { /* EC commands */ + IT8516E_CMD_GET_FAN_MODE = 0x10, + IT8516E_CMD_SET_FAN_MODE = 0x11, + IT8516E_CMD_GET_FAN_PWM = 0x12, + IT8516E_CMD_SET_FAN_PWM = 0x13, + IT8516E_CMD_GET_FAN_SPEED = 0x14, + IT8516E_CMD_SET_FAN_SPEED = 0x15, + IT8516E_CMD_GET_FAN_TEMP = 0x16, + IT8516E_CMD_SET_FAN_TEMP = 0x17, +}; + +static void it8516e_set_fan_mode(const u8 idx, const u8 mode) +{ + if (send_ec_command(IT8516E_CMD_SET_FAN_MODE)) + return; + if (send_ec_data(idx)) + return; + send_ec_data(mode); +} + +static void it8516e_set_fan_pwm(const u8 idx, const u8 pwm) +{ + if (send_ec_command(IT8516E_CMD_SET_FAN_PWM)) + return; + if (send_ec_data(idx)) + return; + send_ec_data(pwm); +} + +static void it8516e_set_fan_speed(const u8 idx, const u16 speed) +{ + if (send_ec_command(IT8516E_CMD_SET_FAN_SPEED)) + return; + if (send_ec_data(idx)) + return; + if (send_ec_data(speed & 0xff)) + return; + send_ec_data(speed >> 8); +} + +static void it8516e_set_fan_temperature(const u8 idx, const u8 temp) +{ + if (send_ec_command(IT8516E_CMD_SET_FAN_TEMP)) + return; + if (send_ec_data(idx)) + return; + if (send_ec_data((temp << 6) & 0xff)) + return; + send_ec_data(((temp << 6) >> 8) & 0xff); +} + +static void it8516e_set_fan_from_options(const config_t *const config, + const u8 fan_idx) +{ + static char fanX_mode[] = "fanX_mode"; + static char fanX_target[] = "fanX_target"; + + u8 fan_mode = config->default_fan_mode[fan_idx]; + u16 fan_target = config->default_fan_target[fan_idx]; + + fanX_mode[3] = '1' + fan_idx; + get_option(&fan_mode, fanX_mode); + if (!fan_mode) + fan_mode = IT8516E_MODE_AUTO; + it8516e_set_fan_mode(fan_idx, fan_mode); + + fanX_target[3] = '1' + fan_idx; + get_option(&fan_target, fanX_target); + switch (fan_mode) { + case IT8516E_MODE_AUTO: + printk(BIOS_DEBUG, + "Setting it8516e fan%d " + "control to auto.\n", + fan_idx + 1); + break; + case IT8516E_MODE_PWM: + printk(BIOS_DEBUG, + "Setting it8516e fan%d " + "control to %d%% PWM.\n", + fan_idx + 1, fan_target); + it8516e_set_fan_pwm(fan_idx, fan_target); + break; + case IT8516E_MODE_SPEED: + printk(BIOS_DEBUG, + "Setting it8516e fan%d " + "control to %d RPMs.\n", + fan_idx + 1, fan_target); + it8516e_set_fan_speed(fan_idx, fan_target); + break; + case IT8516E_MODE_THERMAL: + printk(BIOS_DEBUG, + "Setting it8516e fan%d " + "control to %d°C.\n", + fan_idx + 1, fan_target); + it8516e_set_fan_temperature( + fan_idx, fan_target); + break; + } +} + +static void it8516e_pm2_init(const device_t dev) +{ + const config_t *const config = dev->chip_info; + + /* TODO: Set frequency / divider? */ + + ec_set_ports(find_resource(dev, PNP_IDX_IO1)->base, + find_resource(dev, PNP_IDX_IO0)->base); + + it8516e_set_fan_from_options(config, 0); + it8516e_set_fan_from_options(config, 1); +} + +static struct device_operations it8516e_pm2_ops = { + .read_resources = pnp_read_resources, + .set_resources = pnp_set_resources, + .enable_resources = pnp_enable_resources, + .enable = pnp_enable, + .init = it8516e_pm2_init +}; + +static struct pnp_info it8516e_dev_infos[] = { + { NULL, IT8516E_LDN_UART1, PNP_IO0 | PNP_IRQ0, { 0x07f8, }, }, + { NULL, IT8516E_LDN_UART2, PNP_IO0 | PNP_IRQ0, { 0x07f8, }, }, + { NULL, IT8516E_LDN_SWUC, PNP_IO0 | PNP_IRQ0, { 0xff7e0, }, }, + { NULL, IT8516E_LDN_MOUSE, PNP_IRQ0, }, + { NULL, IT8516E_LDN_KBD, PNP_IO0 | PNP_IO1 | PNP_IRQ0, { 0x07ff, }, { 0x07ff, }, }, + { NULL, IT8516E_LDN_SMFI, PNP_IO0 | PNP_IRQ0, { 0xfff0, }, }, + { NULL, IT8516E_LDN_BRAM, PNP_IO0 | PNP_IO1, { 0xfffe, }, { 0xfffe, }, }, + { NULL, IT8516E_LDN_PM1, PNP_IO0 | PNP_IO1 | PNP_IRQ0, { 0x07ff, }, { 0x07ff, }, }, + { &it8516e_pm2_ops, IT8516E_LDN_PM2, PNP_IO0 | PNP_IO1 | PNP_IRQ0, { 0x07ff, }, { 0x07ff, }, }, + { NULL, IT8516E_LDN_PM3, PNP_IO0 | PNP_IO1 | PNP_IRQ0, { 0x07ff, }, { 0x07ff, }, }, +}; + +static void it8516e_enable(const device_t dev) +{ + pnp_enable_devices(dev, &pnp_ops, + ARRAY_SIZE(it8516e_dev_infos), it8516e_dev_infos); +} + +const struct chip_operations ec_kontron_it8516e_ops = { + CHIP_NAME("Kontron (Fintec/ITE) IT8516E EC") + .enable_dev = it8516e_enable +}; |