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i8042-sparcio.h

#ifndef _I8042_SPARCIO_H
#define _I8042_SPARCIO_H

#include <asm/io.h>
#include <asm/oplib.h>
#include <asm/prom.h>
#include <asm/of_device.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);
}

#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 of_device *op, const struct of_device_id *match)
{
      struct device_node *dp = op->node;

      dp = dp->child;
      while (dp) {
            if (!strcmp(dp->name, OBP_PS2KBD_NAME1) ||
                !strcmp(dp->name, OBP_PS2KBD_NAME2)) {
                  struct of_device *kbd = of_find_device_by_node(dp);
                  unsigned int irq = kbd->irqs[0];
                  if (irq == 0xffffffff)
                        irq = op->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 of_device *ms = of_find_device_by_node(dp);
                  unsigned int irq = ms->irqs[0];
                  if (irq == 0xffffffff)
                        irq = op->irqs[0];
                  i8042_aux_irq = irq;
            }

            dp = dp->sibling;
      }

      return 0;
}

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

      return 0;
}

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

static struct of_platform_driver sparc_i8042_driver = {
      .name       = "i8042",
      .match_table      = sparc_i8042_match,
      .probe            = sparc_i8042_probe,
      .remove           = __devexit_p(sparc_i8042_remove),
};

static int __init i8042_platform_init(void)
{
#ifndef CONFIG_PCI
      return -ENODEV;
#else
      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 = of_register_driver(&sparc_i8042_driver,
                                   &of_bus_type);
            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;
#endif /* CONFIG_PCI */
}

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

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

#endif /* _I8042_SPARCIO_H */

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