Release 4.11 drivers/input/serio/i8042-sparcio.h

#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;


#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);
}

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

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

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

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#ifdef CONFIG_PCI


static struct resource *kbd_res;


#define OBP_PS2KBD_NAME1	"kb_ps2"

#define OBP_PS2KBD_NAME2	"keyboard"

#define OBP_PS2MS_NAME1		"kdmouse"

#define OBP_PS2MS_NAME2		"mouse"



static int 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;
}

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

	return 0;
}

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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",
		.of_match_table = sparc_i8042_match,
        },
	.probe		= sparc_i8042_probe,
	.remove		= 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 = I8042_RESET_ALWAYS;

	return 0;
}

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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);
}

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#else /* !CONFIG_PCI */


static int __init i8042_platform_init(void)
{
	return -ENODEV;
}

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

#endif /* _I8042_SPARCIO_H */
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Directory: drivers/input/serio

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