740b587baa
PS/2 keyboard API. Signed-off-by: Stefan Reinauer <stepan@coresystems.de> Acked-by: Patrick Georgi <patrick.georgi@coresystems.de> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5152 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
136 lines
3.6 KiB
C
136 lines
3.6 KiB
C
/*
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* This file is part of the coreboot project.
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*
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* Copyright (C) 2009 coresystems GmbH
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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/* RAM driver for the SMSC LPC47M15X Super I/O chip */
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#include <arch/io.h>
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#include <device/device.h>
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#include <device/pnp.h>
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#include <console/console.h>
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#include <device/smbus.h>
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#include <string.h>
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#include <bitops.h>
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#include <uart8250.h>
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#include <pc80/keyboard.h>
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#include <stdlib.h>
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#include "chip.h"
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#include "lpc47m15x.h"
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/* Forward declarations */
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static void enable_dev(device_t dev);
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static void lpc47m15x_pnp_set_resources(device_t dev);
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static void lpc47m15x_pnp_enable_resources(device_t dev);
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static void lpc47m15x_pnp_enable(device_t dev);
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static void lpc47m15x_init(device_t dev);
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static void pnp_enter_conf_state(device_t dev);
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static void pnp_exit_conf_state(device_t dev);
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static void dump_pnp_device(device_t dev);
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struct chip_operations superio_smsc_lpc47m15x_ops = {
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CHIP_NAME("SMSC LPC47M15x/192/997 Super I/O")
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.enable_dev = enable_dev
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};
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static struct device_operations ops = {
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.read_resources = pnp_read_resources,
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.set_resources = lpc47m15x_pnp_set_resources,
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.enable_resources = lpc47m15x_pnp_enable_resources,
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.enable = lpc47m15x_pnp_enable,
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.init = lpc47m15x_init,
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};
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static struct pnp_info pnp_dev_info[] = {
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{ &ops, LPC47M15X_FDC, PNP_IO0 | PNP_IRQ0 | PNP_DRQ0, { 0x07f8, 0}, },
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{ &ops, LPC47M15X_PP, PNP_IO0 | PNP_IRQ0 | PNP_DRQ0, { 0x07f8, 0}, },
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{ &ops, LPC47M15X_SP1, PNP_IO0 | PNP_IRQ0, { 0x7f8, 0 }, },
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{ &ops, LPC47M15X_SP2, PNP_IO0 | PNP_IRQ0, { 0x7f8, 0 }, },
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{ &ops, LPC47M15X_KBC, PNP_IO0 | PNP_IO1 | PNP_IRQ0 | PNP_IRQ1, { 0x7ff, 0 }, { 0x7ff, 0x4}, },
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};
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static void enable_dev(device_t dev)
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{
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pnp_enable_devices(dev, &pnp_ops, ARRAY_SIZE(pnp_dev_info), pnp_dev_info);
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}
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static void lpc47m15x_pnp_set_resources(device_t dev)
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{
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pnp_enter_conf_state(dev);
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pnp_set_resources(dev);
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pnp_exit_conf_state(dev);
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}
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static void lpc47m15x_pnp_enable_resources(device_t dev)
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{
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pnp_enter_conf_state(dev);
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pnp_enable_resources(dev);
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pnp_exit_conf_state(dev);
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}
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static void lpc47m15x_pnp_enable(device_t dev)
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{
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pnp_enter_conf_state(dev);
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pnp_set_logical_device(dev);
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if(dev->enabled) {
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pnp_set_enable(dev, 1);
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}
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else {
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pnp_set_enable(dev, 0);
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}
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pnp_exit_conf_state(dev);
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}
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static void lpc47m15x_init(device_t dev)
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{
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struct superio_smsc_lpc47m15x_config *conf = dev->chip_info;
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struct resource *res0, *res1;
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if (!dev->enabled)
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return;
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switch(dev->path.pnp.device) {
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case LPC47M15X_SP1:
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res0 = find_resource(dev, PNP_IDX_IO0);
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init_uart8250(res0->base, &conf->com1);
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break;
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case LPC47M15X_SP2:
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res0 = find_resource(dev, PNP_IDX_IO0);
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init_uart8250(res0->base, &conf->com2);
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break;
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case LPC47M15X_KBC:
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res0 = find_resource(dev, PNP_IDX_IO0);
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res1 = find_resource(dev, PNP_IDX_IO1);
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pc_keyboard_init(&conf->keyboard);
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break;
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}
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}
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static void pnp_enter_conf_state(device_t dev)
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{
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outb(0x55, dev->path.pnp.port);
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}
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static void pnp_exit_conf_state(device_t dev)
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{
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outb(0xaa, dev->path.pnp.port);
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}
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