1 #ifndef _I8042_SPARCIO_H
2 #define _I8042_SPARCIO_H
3 
4 #include <linux/config.h>
5 #include <asm/io.h>
6 
7 #ifdef CONFIG_PCI
8 #include <asm/oplib.h>
9 #include <asm/ebus.h>
10 #endif
11 
12 static int i8042_kbd_irq = -1;
13 static int i8042_aux_irq = -1;
14 #define I8042_KBD_IRQ i8042_kbd_irq
15 #define I8042_AUX_IRQ i8042_aux_irq
16 
17 #define I8042_KBD_PHYS_DESC "sparcps2/serio0"
18 #define I8042_AUX_PHYS_DESC "sparcps2/serio1"
19 #define I8042_MUX_PHYS_DESC "sparcps2/serio%d"
20 
21 static void __iomem *kbd_iobase;
22 
23 #define I8042_COMMAND_REG	(kbd_iobase + 0x64UL)
24 #define I8042_DATA_REG		(kbd_iobase + 0x60UL)
25 
26 static inline int i8042_read_data(void)
27 {
28 	return readb(kbd_iobase + 0x60UL);
29 }
30 
31 static inline int i8042_read_status(void)
32 {
33 	return readb(kbd_iobase + 0x64UL);
34 }
35 
36 static inline void i8042_write_data(int val)
37 {
38 	writeb(val, kbd_iobase + 0x60UL);
39 }
40 
41 static inline void i8042_write_command(int val)
42 {
43 	writeb(val, kbd_iobase + 0x64UL);
44 }
45 
46 #define OBP_PS2KBD_NAME1	"kb_ps2"
47 #define OBP_PS2KBD_NAME2	"keyboard"
48 #define OBP_PS2MS_NAME1		"kdmouse"
49 #define OBP_PS2MS_NAME2		"mouse"
50 
51 static int __init i8042_platform_init(void)
52 {
53 #ifndef CONFIG_PCI
54 	return -ENODEV;
55 #else
56 	char prop[128];
57 	int len;
58 
59 	len = prom_getproperty(prom_root_node, "name", prop, sizeof(prop));
60 	if (len < 0) {
61 		printk("i8042: Cannot get name property of root OBP node.\n");
62 		return -ENODEV;
63 	}
64 	if (strncmp(prop, "SUNW,JavaStation-1", len) == 0) {
65 		/* Hardcoded values for MrCoffee.  */
66 		i8042_kbd_irq = i8042_aux_irq = 13 | 0x20;
67 		kbd_iobase = ioremap(0x71300060, 8);
68 		if (!kbd_iobase)
69 			return -ENODEV;
70 	} else {
71 		struct linux_ebus *ebus;
72 		struct linux_ebus_device *edev;
73 		struct linux_ebus_child *child;
74 
75 		for_each_ebus(ebus) {
76 			for_each_ebusdev(edev, ebus) {
77 				if (!strcmp(edev->prom_name, "8042"))
78 					goto edev_found;
79 			}
80 		}
81 		return -ENODEV;
82 
83 	edev_found:
84 		for_each_edevchild(edev, child) {
85 			if (!strcmp(child->prom_name, OBP_PS2KBD_NAME1) ||
86 			    !strcmp(child->prom_name, OBP_PS2KBD_NAME2)) {
87 				i8042_kbd_irq = child->irqs[0];
88 				kbd_iobase =
89 					ioremap(child->resource[0].start, 8);
90 			}
91 			if (!strcmp(child->prom_name, OBP_PS2MS_NAME1) ||
92 			    !strcmp(child->prom_name, OBP_PS2MS_NAME2))
93 				i8042_aux_irq = child->irqs[0];
94 		}
95 		if (i8042_kbd_irq == -1 ||
96 		    i8042_aux_irq == -1) {
97 			printk("i8042: Error, 8042 device lacks both kbd and "
98 			       "mouse nodes.\n");
99 			return -ENODEV;
100 		}
101 	}
102 
103 	i8042_reset = 1;
104 
105 	return 0;
106 #endif /* CONFIG_PCI */
107 }
108 
109 static inline void i8042_platform_exit(void)
110 {
111 #ifdef CONFIG_PCI
112 	iounmap(kbd_iobase);
113 #endif
114 }
115 
116 #endif /* _I8042_SPARCIO_H */
117