| /* |
| * This file is part of the coreboot project. |
| * |
| * Copyright (C) 2011 Sven Schnelle <svens@stackframe.org> |
| * |
| * 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. |
| */ |
| |
| #include <arch/io.h> |
| #include <console/console.h> |
| #include <device/device.h> |
| #include <device/pnp.h> |
| #include <pc80/mc146818rtc.h> |
| #include <delay.h> |
| #include <types.h> |
| |
| #include "pmh7.h" |
| #include "chip.h" |
| |
| void pmh7_backlight_enable(int onoff) |
| { |
| if (onoff) |
| pmh7_register_set_bit(0x50, 5); |
| else |
| pmh7_register_clear_bit(0x50, 5); |
| } |
| |
| void pmh7_dock_event_enable(int onoff) |
| { |
| if (onoff) |
| pmh7_register_set_bit(0x60, 3); |
| else |
| pmh7_register_clear_bit(0x60, 3); |
| |
| } |
| |
| void pmh7_touchpad_enable(int onoff) |
| { |
| if (onoff) |
| pmh7_register_clear_bit(0x51, 2); |
| else |
| pmh7_register_set_bit(0x51, 2); |
| } |
| |
| void pmh7_trackpoint_enable(int onoff) |
| { |
| if (onoff) |
| pmh7_register_clear_bit(0x51, 0); |
| else |
| pmh7_register_set_bit(0x51, 0); |
| } |
| |
| void pmh7_ultrabay_power_enable(int onoff) |
| { |
| if (onoff) |
| pmh7_register_clear_bit(0x62, 0); |
| else |
| pmh7_register_set_bit(0x62, 0); |
| } |
| |
| void pmh7_dgpu_power_enable(int onoff) |
| { |
| if (onoff) { |
| pmh7_register_clear_bit(0x50, 7); // DGPU_RST |
| pmh7_register_set_bit(0x50, 3); // DGPU_PWR |
| mdelay(10); |
| pmh7_register_set_bit(0x50, 7); // DGPU_RST |
| mdelay(50); |
| } else { |
| pmh7_register_clear_bit(0x50, 7); // DGPU_RST |
| udelay(100); |
| pmh7_register_clear_bit(0x50, 3); // DGPU_PWR |
| } |
| } |
| |
| bool pmh7_dgpu_power_state(void) |
| { |
| return (pmh7_register_read(0x50) & 0x08) == 8; |
| } |
| |
| void pmh7_register_set_bit(int reg, int bit) |
| { |
| char val; |
| |
| val = pmh7_register_read(reg); |
| pmh7_register_write(reg, val | (1 << bit)); |
| } |
| |
| void pmh7_register_clear_bit(int reg, int bit) |
| { |
| char val; |
| |
| val = pmh7_register_read(reg); |
| pmh7_register_write(reg, val & ~(1 << bit)); |
| } |
| |
| char pmh7_register_read(int reg) |
| { |
| outb(reg & 0xff, EC_LENOVO_PMH7_ADDR_L); |
| outb((reg & 0xff00) >> 8, EC_LENOVO_PMH7_ADDR_H); |
| return inb(EC_LENOVO_PMH7_DATA); |
| } |
| |
| void pmh7_register_write(int reg, int val) |
| { |
| outb(reg & 0xff, EC_LENOVO_PMH7_ADDR_L); |
| outb((reg & 0xff00) >> 8, EC_LENOVO_PMH7_ADDR_H); |
| outb(val, EC_LENOVO_PMH7_DATA); |
| } |
| |
| #ifndef __PRE_RAM__ |
| #ifndef __SMM__ |
| static void enable_dev(struct device *dev) |
| { |
| struct ec_lenovo_pmh7_config *conf = dev->chip_info; |
| struct resource *resource; |
| u8 val; |
| |
| resource = new_resource(dev, EC_LENOVO_PMH7_INDEX); |
| resource->flags = IORESOURCE_IO | IORESOURCE_FIXED; |
| resource->base = EC_LENOVO_PMH7_BASE; |
| resource->size = 16; |
| resource->align = 5; |
| resource->gran = 5; |
| |
| pmh7_backlight_enable(conf->backlight_enable); |
| pmh7_dock_event_enable(conf->dock_event_enable); |
| |
| if (get_option(&val, "touchpad") != CB_SUCCESS) |
| val = 1; |
| pmh7_touchpad_enable(val); |
| |
| if (get_option(&val, "trackpoint") != CB_SUCCESS) |
| val = 1; |
| pmh7_trackpoint_enable(val); |
| |
| printk(BIOS_INFO, "PMH7: ID %02x Revision %02x\n", |
| pmh7_register_read(EC_LENOVO_PMH7_REG_ID), |
| pmh7_register_read(EC_LENOVO_PMH7_REG_REV)); |
| } |
| |
| struct chip_operations ec_lenovo_pmh7_ops = { |
| CHIP_NAME("Lenovo Power Management Hardware Hub 7") |
| .enable_dev = enable_dev, |
| }; |
| #endif |
| #endif |