Commit | Line | Data |
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1da177e4 LT |
1 | #ifndef _I8042_SPARCIO_H |
2 | #define _I8042_SPARCIO_H | |
3 | ||
c6ed413d SR |
4 | #include <linux/of_device.h> |
5 | ||
1da177e4 | 6 | #include <asm/io.h> |
1da177e4 | 7 | #include <asm/oplib.h> |
f57caaef | 8 | #include <asm/prom.h> |
1da177e4 LT |
9 | |
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 | |
14 | ||
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" | |
18 | ||
19 | static void __iomem *kbd_iobase; | |
e3a411a3 | 20 | static struct resource *kbd_res; |
1da177e4 LT |
21 | |
22 | #define I8042_COMMAND_REG (kbd_iobase + 0x64UL) | |
23 | #define I8042_DATA_REG (kbd_iobase + 0x60UL) | |
24 | ||
25 | static inline int i8042_read_data(void) | |
26 | { | |
27 | return readb(kbd_iobase + 0x60UL); | |
28 | } | |
29 | ||
30 | static inline int i8042_read_status(void) | |
31 | { | |
32 | return readb(kbd_iobase + 0x64UL); | |
33 | } | |
34 | ||
35 | static inline void i8042_write_data(int val) | |
36 | { | |
37 | writeb(val, kbd_iobase + 0x60UL); | |
38 | } | |
39 | ||
40 | static inline void i8042_write_command(int val) | |
41 | { | |
42 | writeb(val, kbd_iobase + 0x64UL); | |
43 | } | |
44 | ||
8c6a5cad AB |
45 | #ifdef CONFIG_PCI |
46 | ||
1da177e4 LT |
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" | |
51 | ||
f57caaef DM |
52 | static int __devinit sparc_i8042_probe(struct of_device *op, const struct of_device_id *match) |
53 | { | |
61c7a080 | 54 | struct device_node *dp = op->dev.of_node; |
f57caaef DM |
55 | |
56 | dp = dp->child; | |
57 | while (dp) { | |
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); | |
1636f8ac | 61 | unsigned int irq = kbd->archdata.irqs[0]; |
f57caaef | 62 | if (irq == 0xffffffff) |
1636f8ac | 63 | irq = op->archdata.irqs[0]; |
f57caaef DM |
64 | i8042_kbd_irq = irq; |
65 | kbd_iobase = of_ioremap(&kbd->resource[0], | |
66 | 0, 8, "kbd"); | |
e3a411a3 | 67 | kbd_res = &kbd->resource[0]; |
f57caaef DM |
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); | |
1636f8ac | 71 | unsigned int irq = ms->archdata.irqs[0]; |
f57caaef | 72 | if (irq == 0xffffffff) |
1636f8ac | 73 | irq = op->archdata.irqs[0]; |
f57caaef DM |
74 | i8042_aux_irq = irq; |
75 | } | |
76 | ||
77 | dp = dp->sibling; | |
78 | } | |
79 | ||
80 | return 0; | |
81 | } | |
82 | ||
83 | static int __devexit sparc_i8042_remove(struct of_device *op) | |
84 | { | |
e3a411a3 | 85 | of_iounmap(kbd_res, kbd_iobase, 8); |
f57caaef DM |
86 | |
87 | return 0; | |
88 | } | |
89 | ||
fd098316 | 90 | static const struct of_device_id sparc_i8042_match[] = { |
f57caaef DM |
91 | { |
92 | .name = "8042", | |
93 | }, | |
94 | {}, | |
95 | }; | |
6b8f3ef4 | 96 | MODULE_DEVICE_TABLE(of, sparc_i8042_match); |
f57caaef DM |
97 | |
98 | static struct of_platform_driver sparc_i8042_driver = { | |
4018294b GL |
99 | .driver = { |
100 | .name = "i8042", | |
101 | .owner = THIS_MODULE, | |
102 | .of_match_table = sparc_i8042_match, | |
103 | }, | |
f57caaef DM |
104 | .probe = sparc_i8042_probe, |
105 | .remove = __devexit_p(sparc_i8042_remove), | |
106 | }; | |
107 | ||
8d5987a6 | 108 | static int __init i8042_platform_init(void) |
1da177e4 | 109 | { |
f57caaef | 110 | struct device_node *root = of_find_node_by_path("/"); |
1da177e4 | 111 | |
f57caaef | 112 | if (!strcmp(root->name, "SUNW,JavaStation-1")) { |
1da177e4 LT |
113 | /* Hardcoded values for MrCoffee. */ |
114 | i8042_kbd_irq = i8042_aux_irq = 13 | 0x20; | |
115 | kbd_iobase = ioremap(0x71300060, 8); | |
116 | if (!kbd_iobase) | |
8d5987a6 | 117 | return -ENODEV; |
1da177e4 | 118 | } else { |
1ab1d63a | 119 | int err = of_register_platform_driver(&sparc_i8042_driver); |
f57caaef DM |
120 | if (err) |
121 | return err; | |
122 | ||
1da177e4 LT |
123 | if (i8042_kbd_irq == -1 || |
124 | i8042_aux_irq == -1) { | |
f57caaef | 125 | if (kbd_iobase) { |
e3a411a3 | 126 | of_iounmap(kbd_res, kbd_iobase, 8); |
f57caaef DM |
127 | kbd_iobase = (void __iomem *) NULL; |
128 | } | |
8d5987a6 | 129 | return -ENODEV; |
1da177e4 LT |
130 | } |
131 | } | |
132 | ||
133 | i8042_reset = 1; | |
134 | ||
135 | return 0; | |
1da177e4 LT |
136 | } |
137 | ||
138 | static inline void i8042_platform_exit(void) | |
139 | { | |
f57caaef DM |
140 | struct device_node *root = of_find_node_by_path("/"); |
141 | ||
142 | if (strcmp(root->name, "SUNW,JavaStation-1")) | |
1ab1d63a | 143 | of_unregister_platform_driver(&sparc_i8042_driver); |
1da177e4 LT |
144 | } |
145 | ||
8c6a5cad AB |
146 | #else /* !CONFIG_PCI */ |
147 | static int __init i8042_platform_init(void) | |
148 | { | |
149 | return -ENODEV; | |
150 | } | |
151 | ||
152 | static inline void i8042_platform_exit(void) | |
153 | { | |
154 | } | |
155 | #endif /* !CONFIG_PCI */ | |
156 | ||
1da177e4 | 157 | #endif /* _I8042_SPARCIO_H */ |