1 #ifndef _I8042_SPARCIO_H
2 #define _I8042_SPARCIO_H
4 #include <linux/of_device.h>
10 static int i8042_kbd_irq = -1;
11 static int i8042_aux_irq = -1;
12 #define I8042_KBD_IRQ i8042_kbd_irq
13 #define I8042_AUX_IRQ i8042_aux_irq
15 #define I8042_KBD_PHYS_DESC "sparcps2/serio0"
16 #define I8042_AUX_PHYS_DESC "sparcps2/serio1"
17 #define I8042_MUX_PHYS_DESC "sparcps2/serio%d"
19 static void __iomem *kbd_iobase;
20 static struct resource *kbd_res;
22 #define I8042_COMMAND_REG (kbd_iobase + 0x64UL)
23 #define I8042_DATA_REG (kbd_iobase + 0x60UL)
25 static inline int i8042_read_data(void)
27 return readb(kbd_iobase + 0x60UL);
30 static inline int i8042_read_status(void)
32 return readb(kbd_iobase + 0x64UL);
35 static inline void i8042_write_data(int val)
37 writeb(val, kbd_iobase + 0x60UL);
40 static inline void i8042_write_command(int val)
42 writeb(val, kbd_iobase + 0x64UL);
47 #define OBP_PS2KBD_NAME1 "kb_ps2"
48 #define OBP_PS2KBD_NAME2 "keyboard"
49 #define OBP_PS2MS_NAME1 "kdmouse"
50 #define OBP_PS2MS_NAME2 "mouse"
52 static int __devinit sparc_i8042_probe(struct platform_device *op)
54 struct device_node *dp = op->dev.of_node;
58 if (!strcmp(dp->name, OBP_PS2KBD_NAME1) ||
59 !strcmp(dp->name, OBP_PS2KBD_NAME2)) {
60 struct platform_device *kbd = of_find_device_by_node(dp);
61 unsigned int irq = kbd->archdata.irqs[0];
62 if (irq == 0xffffffff)
63 irq = op->archdata.irqs[0];
65 kbd_iobase = of_ioremap(&kbd->resource[0],
67 kbd_res = &kbd->resource[0];
68 } else if (!strcmp(dp->name, OBP_PS2MS_NAME1) ||
69 !strcmp(dp->name, OBP_PS2MS_NAME2)) {
70 struct platform_device *ms = of_find_device_by_node(dp);
71 unsigned int irq = ms->archdata.irqs[0];
72 if (irq == 0xffffffff)
73 irq = op->archdata.irqs[0];
83 static int __devexit sparc_i8042_remove(struct platform_device *op)
85 of_iounmap(kbd_res, kbd_iobase, 8);
90 static const struct of_device_id sparc_i8042_match[] = {
96 MODULE_DEVICE_TABLE(of, sparc_i8042_match);
98 static struct platform_driver sparc_i8042_driver = {
101 .owner = THIS_MODULE,
102 .of_match_table = sparc_i8042_match,
104 .probe = sparc_i8042_probe,
105 .remove = __devexit_p(sparc_i8042_remove),
108 static int __init i8042_platform_init(void)
110 struct device_node *root = of_find_node_by_path("/");
112 if (!strcmp(root->name, "SUNW,JavaStation-1")) {
113 /* Hardcoded values for MrCoffee. */
114 i8042_kbd_irq = i8042_aux_irq = 13 | 0x20;
115 kbd_iobase = ioremap(0x71300060, 8);
119 int err = platform_driver_register(&sparc_i8042_driver);
123 if (i8042_kbd_irq == -1 ||
124 i8042_aux_irq == -1) {
126 of_iounmap(kbd_res, kbd_iobase, 8);
127 kbd_iobase = (void __iomem *) NULL;
138 static inline void i8042_platform_exit(void)
140 struct device_node *root = of_find_node_by_path("/");
142 if (strcmp(root->name, "SUNW,JavaStation-1"))
143 platform_driver_unregister(&sparc_i8042_driver);
146 #else /* !CONFIG_PCI */
147 static int __init i8042_platform_init(void)
152 static inline void i8042_platform_exit(void)
155 #endif /* !CONFIG_PCI */
157 #endif /* _I8042_SPARCIO_H */