Subversion Repositories shark

/*
 * 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; either version 2 of the License, or
 * (at your option) any later version.
 *
 * 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 */

#ifndef _I8042_SPARCIO_H
#define _I8042_SPARCIO_H

#include <linux/config.h>
#include <asm/io.h>

#ifdef CONFIG_PCI
#include <asm/oplib.h>
#include <asm/ebus.h>
#endif

static int i8042_kbd_irq = -1;
static int i8042_aux_irq = -1;
#define I8042_KBD_IRQ i8042_kbd_irq
#define I8042_AUX_IRQ i8042_aux_irq

#define I8042_KBD_PHYS_DESC "sparcps2/serio0"
#define I8042_AUX_PHYS_DESC "sparcps2/serio1"
#define I8042_MUX_PHYS_DESC "sparcps2/serio%d"

static unsigned long kbd_iobase;

#define I8042_COMMAND_REG       (kbd_iobase + 0x64UL)
#define I8042_DATA_REG          (kbd_iobase + 0x60UL)

static inline int i8042_read_data(void)
{
        return readb(kbd_iobase + 0x60UL);
}

static inline int i8042_read_status(void)
{
        return readb(kbd_iobase + 0x64UL);
}

static inline void i8042_write_data(int val)
{
        writeb(val, kbd_iobase + 0x60UL);
}

static inline void i8042_write_command(int val)
{
        writeb(val, kbd_iobase + 0x64UL);
}

#define OBP_PS2KBD_NAME1        "kb_ps2"
#define OBP_PS2KBD_NAME2        "keyboard"
#define OBP_PS2MS_NAME1         "kdmouse"
#define OBP_PS2MS_NAME2         "mouse"

static int i8042_platform_init(void)
{
#ifndef CONFIG_PCI
        return -1;
#else
        char prop[128];
        int len;

        len = prom_getproperty(prom_root_node, "name", prop, sizeof(prop));
        if (len < 0) {
                printk("i8042: Cannot get name property of root OBP node.\n");
                return -1;
        }
        if (strncmp(prop, "SUNW,JavaStation-1", len) == 0) {
                /* Hardcoded values for MrCoffee.  */
                i8042_kbd_irq = i8042_aux_irq = 13 | 0x20;
                kbd_iobase = (unsigned long) ioremap(0x71300060, 8);
                if (!kbd_iobase)
                        return -1;
        } else {
                struct linux_ebus *ebus;
                struct linux_ebus_device *edev;
                struct linux_ebus_child *child;

                for_each_ebus(ebus) {
                        for_each_ebusdev(edev, ebus) {
                                if (!strcmp(edev->prom_name, "8042"))
                                        goto edev_found;
                        }
                }
                return -1;

        edev_found:
                for_each_edevchild(edev, child) {
                        if (!strcmp(child->prom_name, OBP_PS2KBD_NAME1) ||
                            !strcmp(child->prom_name, OBP_PS2KBD_NAME2)) {
                                i8042_kbd_irq = child->irqs[0];
                                kbd_iobase = (unsigned long)
                                        ioremap(child->resource[0].start, 8);
                        }
                        if (!strcmp(child->prom_name, OBP_PS2MS_NAME1) ||
                            !strcmp(child->prom_name, OBP_PS2MS_NAME2))
                                i8042_aux_irq = child->irqs[0];
                }
                if (i8042_kbd_irq == -1 ||
                    i8042_aux_irq == -1) {
                        printk("i8042: Error, 8042 device lacks both kbd and "
                               "mouse nodes.\n");
                        return -1;
                }
        }

        i8042_reset = 1;

        return 0;
#endif /* CONFIG_PCI */
}

static inline void i8042_platform_exit(void)
{
#ifdef CONFIG_PCI
        iounmap((void *)kbd_iobase);
#endif
}

#endif /* _I8042_SPARCIO_H */