i8042-sparcio.h

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#ifndef _I8042_SPARCIO_H
#define _I8042_SPARCIO_H

#include <linux/of_device.h>

#include <asm/io.h>
#include <asm/oplib.h>
#include <asm/prom.h>

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 void __iomem *kbd_iobase;
static struct resource *kbd_res;

#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);
}

#ifdef CONFIG_PCI

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

static int __devinit sparc_i8042_probe(struct platform_device *op)
{
    struct device_node *dp = op->dev.of_node;

    dp = dp->child;
    while (dp) {
        if (!strcmp(dp->name, OBP_PS2KBD_NAME1) ||
            !strcmp(dp->name, OBP_PS2KBD_NAME2)) {
            struct platform_device *kbd = of_find_device_by_node(dp);
            unsigned int irq = kbd->archdata.irqs[0];
            if (irq == 0xffffffff)
                irq = op->archdata.irqs[0];
            i8042_kbd_irq = irq;
            kbd_iobase = of_ioremap(&kbd->resource[0],
                        0, 8, "kbd");
            kbd_res = &kbd->resource[0];
        } else if (!strcmp(dp->name, OBP_PS2MS_NAME1) ||
               !strcmp(dp->name, OBP_PS2MS_NAME2)) {
            struct platform_device *ms = of_find_device_by_node(dp);
            unsigned int irq = ms->archdata.irqs[0];
            if (irq == 0xffffffff)
                irq = op->archdata.irqs[0];
            i8042_aux_irq = irq;
        }

        dp = dp->sibling;
    }

    return 0;
}

static int __devexit sparc_i8042_remove(struct platform_device *op)
{
    of_iounmap(kbd_res, kbd_iobase, 8);

    return 0;
}

static const struct of_device_id sparc_i8042_match[] = {
    {
        .name = "8042",
    },
    {},
};
MODULE_DEVICE_TABLE(of, sparc_i8042_match);

static struct platform_driver sparc_i8042_driver = {
    .driver = {
        .name = "i8042",
        .owner = THIS_MODULE,
        .of_match_table = sparc_i8042_match,
    },
    .probe      = sparc_i8042_probe,
    .remove     = __devexit_p(sparc_i8042_remove),
};

static int __init i8042_platform_init(void)
{
    struct device_node *root = of_find_node_by_path("/");

    if (!strcmp(root->name, "SUNW,JavaStation-1")) {
        /* Hardcoded values for MrCoffee.  */
        i8042_kbd_irq = i8042_aux_irq = 13 | 0x20;
        kbd_iobase = ioremap(0x71300060, 8);
        if (!kbd_iobase)
            return -ENODEV;
    } else {
        int err = platform_driver_register(&sparc_i8042_driver);
        if (err)
            return err;

        if (i8042_kbd_irq == -1 ||
            i8042_aux_irq == -1) {
            if (kbd_iobase) {
                of_iounmap(kbd_res, kbd_iobase, 8);
                kbd_iobase = (void __iomem *) NULL;
            }
            return -ENODEV;
        }
    }

    i8042_reset = 1;

    return 0;
}

static inline void i8042_platform_exit(void)
{
    struct device_node *root = of_find_node_by_path("/");

    if (strcmp(root->name, "SUNW,JavaStation-1"))
        platform_driver_unregister(&sparc_i8042_driver);
}

#else /* !CONFIG_PCI */
static int __init i8042_platform_init(void)
{
    return -ENODEV;
}

static inline void i8042_platform_exit(void)
{
}
#endif /* !CONFIG_PCI */

#endif /* _I8042_SPARCIO_H */