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 of_device
*op
, const struct of_device_id
*match
)
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 of_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 of_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 of_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 of_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
= of_register_platform_driver(&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 of_unregister_platform_driver(&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 */