mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-24 13:13:57 +08:00
117 lines
2.5 KiB
C
117 lines
2.5 KiB
C
#ifndef _I8042_SPARCIO_H
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#define _I8042_SPARCIO_H
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#include <linux/config.h>
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#include <asm/io.h>
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#ifdef CONFIG_PCI
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#include <asm/oplib.h>
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#include <asm/ebus.h>
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#endif
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static int i8042_kbd_irq = -1;
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static int i8042_aux_irq = -1;
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#define I8042_KBD_IRQ i8042_kbd_irq
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#define I8042_AUX_IRQ i8042_aux_irq
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#define I8042_KBD_PHYS_DESC "sparcps2/serio0"
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#define I8042_AUX_PHYS_DESC "sparcps2/serio1"
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#define I8042_MUX_PHYS_DESC "sparcps2/serio%d"
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static void __iomem *kbd_iobase;
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#define I8042_COMMAND_REG (kbd_iobase + 0x64UL)
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#define I8042_DATA_REG (kbd_iobase + 0x60UL)
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static inline int i8042_read_data(void)
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{
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return readb(kbd_iobase + 0x60UL);
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}
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static inline int i8042_read_status(void)
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{
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return readb(kbd_iobase + 0x64UL);
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}
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static inline void i8042_write_data(int val)
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{
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writeb(val, kbd_iobase + 0x60UL);
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}
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static inline void i8042_write_command(int val)
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{
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writeb(val, kbd_iobase + 0x64UL);
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}
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#define OBP_PS2KBD_NAME1 "kb_ps2"
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#define OBP_PS2KBD_NAME2 "keyboard"
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#define OBP_PS2MS_NAME1 "kdmouse"
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#define OBP_PS2MS_NAME2 "mouse"
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static int __init i8042_platform_init(void)
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{
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#ifndef CONFIG_PCI
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return -ENODEV;
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#else
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char prop[128];
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int len;
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len = prom_getproperty(prom_root_node, "name", prop, sizeof(prop));
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if (len < 0) {
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printk("i8042: Cannot get name property of root OBP node.\n");
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return -ENODEV;
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}
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if (strncmp(prop, "SUNW,JavaStation-1", len) == 0) {
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/* Hardcoded values for MrCoffee. */
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i8042_kbd_irq = i8042_aux_irq = 13 | 0x20;
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kbd_iobase = ioremap(0x71300060, 8);
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if (!kbd_iobase)
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return -ENODEV;
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} else {
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struct linux_ebus *ebus;
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struct linux_ebus_device *edev;
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struct linux_ebus_child *child;
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for_each_ebus(ebus) {
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for_each_ebusdev(edev, ebus) {
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if (!strcmp(edev->prom_name, "8042"))
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goto edev_found;
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}
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}
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return -ENODEV;
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edev_found:
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for_each_edevchild(edev, child) {
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if (!strcmp(child->prom_name, OBP_PS2KBD_NAME1) ||
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!strcmp(child->prom_name, OBP_PS2KBD_NAME2)) {
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i8042_kbd_irq = child->irqs[0];
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kbd_iobase =
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ioremap(child->resource[0].start, 8);
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}
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if (!strcmp(child->prom_name, OBP_PS2MS_NAME1) ||
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!strcmp(child->prom_name, OBP_PS2MS_NAME2))
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i8042_aux_irq = child->irqs[0];
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}
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if (i8042_kbd_irq == -1 ||
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i8042_aux_irq == -1) {
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printk("i8042: Error, 8042 device lacks both kbd and "
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"mouse nodes.\n");
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return -ENODEV;
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}
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}
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i8042_reset = 1;
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return 0;
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#endif /* CONFIG_PCI */
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}
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static inline void i8042_platform_exit(void)
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{
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#ifdef CONFIG_PCI
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iounmap(kbd_iobase);
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#endif
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}
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#endif /* _I8042_SPARCIO_H */
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