2 * drivers/input/keyboard/jornada720_kbd.c
4 * HP Jornada 720 keyboard platform driver
6 * Copyright (C) 2006/2007 Kristoffer Ericson <Kristoffer.Ericson@Gmail.com>
8 * Copyright (C) 2006 jornada 720 kbd driver by
9 Filip Zyzniewsk <Filip.Zyzniewski@tefnet.plX
10 * based on (C) 2004 jornada 720 kbd driver by
11 Alex Lange <chicken@handhelds.org>
13 * This program is free software; you can redistribute it and/or modify
14 * it under the terms of the GNU General Public License version 2 as
15 * published by the Free Software Foundation.
18 #include <linux/device.h>
19 #include <linux/errno.h>
20 #include <linux/init.h>
21 #include <linux/interrupt.h>
22 #include <linux/init.h>
23 #include <linux/input.h>
24 #include <linux/kernel.h>
25 #include <linux/module.h>
26 #include <linux/platform_device.h>
28 #include <asm/arch/jornada720.h>
29 #include <asm/hardware.h>
31 MODULE_AUTHOR("Kristoffer Ericson <Kristoffer.Ericson@gmail.com>");
32 MODULE_DESCRIPTION("HP Jornada 710/720/728 keyboard driver");
33 MODULE_LICENSE("GPLv2");
35 static unsigned short jornada_std_keymap
[128] = { /* ROW */
36 0, KEY_ESC
, KEY_F1
, KEY_F2
, KEY_F3
, KEY_F4
, KEY_F5
, KEY_F6
, KEY_F7
, /* #1 */
37 KEY_F8
, KEY_F9
, KEY_F10
, KEY_F11
, KEY_VOLUMEUP
, KEY_VOLUMEDOWN
, KEY_MUTE
, /* -> */
38 0, KEY_1
, KEY_2
, KEY_3
, KEY_4
, KEY_5
, KEY_6
, KEY_7
, KEY_8
, KEY_9
, /* #2 */
39 KEY_0
, KEY_MINUS
, KEY_EQUAL
,0, 0, 0, /* -> */
40 0, KEY_Q
, KEY_W
, KEY_E
, KEY_R
, KEY_T
, KEY_Y
, KEY_U
, KEY_I
, KEY_O
, /* #3 */
41 KEY_P
, KEY_BACKSLASH
, KEY_BACKSPACE
, 0, 0, 0, /* -> */
42 0, KEY_A
, KEY_S
, KEY_D
, KEY_F
, KEY_G
, KEY_H
, KEY_J
, KEY_K
, KEY_L
, /* #4 */
43 KEY_SEMICOLON
, KEY_LEFTBRACE
, KEY_RIGHTBRACE
, 0, 0, 0, /* -> */
44 0, KEY_Z
, KEY_X
, KEY_C
, KEY_V
, KEY_B
, KEY_N
, KEY_M
, KEY_COMMA
, /* #5 */
45 KEY_DOT
, KEY_KPMINUS
, KEY_APOSTROPHE
, KEY_ENTER
, 0, 0,0, /* -> */
46 0, KEY_TAB
, 0, KEY_LEFTSHIFT
, 0, KEY_APOSTROPHE
, 0, 0, 0, 0, /* #6 */
47 KEY_UP
, 0, KEY_RIGHTSHIFT
, 0, 0, 0,0, 0, 0, 0, 0, KEY_LEFTALT
, KEY_GRAVE
, /* -> */
48 0, 0, KEY_LEFT
, KEY_DOWN
, KEY_RIGHT
, 0, 0, 0, 0,0, KEY_KPASTERISK
, /* -> */
49 KEY_LEFTCTRL
, 0, KEY_SPACE
, 0, 0, 0, KEY_SLASH
, KEY_DELETE
, 0, 0, /* -> */
50 0, 0, 0, KEY_POWER
, /* -> */
54 unsigned short keymap
[ARRAY_SIZE(jornada_std_keymap
)];
55 struct input_dev
*input
;
58 static irqreturn_t
jornada720_kbd_interrupt(int irq
, void *dev_id
)
60 struct platform_device
*pdev
= dev_id
;
61 struct jornadakbd
*jornadakbd
= platform_get_drvdata(pdev
);
64 /* startup ssp with spinlock */
67 if (jornada_ssp_inout(GETSCANKEYCODE
) != TXDUMMY
) {
70 "GetKeycode command failed with ETIMEDOUT, "
73 /* How many keycodes are waiting for us? */
74 count
= jornada_ssp_byte(TXDUMMY
);
76 /* Lets drag them out one at a time */
78 /* Exchange TxDummy for location (keymap[kbddata]) */
79 kbd_data
= jornada_ssp_byte(TXDUMMY
);
81 input_report_key(jornadakbd
->input
,
82 jornadakbd
->keymap
[kbd_data
& 0x7f],
84 input_sync(jornadakbd
->input
);
88 /* release spinlock and turn off ssp */
94 static int __devinit
jornada720_kbd_probe(struct platform_device
*pdev
)
96 struct jornadakbd
*jornadakbd
;
97 struct input_dev
*input_dev
;
100 jornadakbd
= kzalloc(sizeof(struct jornadakbd
), GFP_KERNEL
);
101 input_dev
= input_allocate_device();
102 if (!jornadakbd
|| !input_dev
) {
107 platform_set_drvdata(pdev
, jornadakbd
);
109 memcpy(jornadakbd
->keymap
, jornada_std_keymap
,
110 sizeof(jornada_std_keymap
));
111 jornadakbd
->input
= input_dev
;
113 input_dev
->evbit
[0] = BIT(EV_KEY
) | BIT(EV_REP
);
114 input_dev
->name
= "HP Jornada 720 keyboard";
115 input_dev
->phys
= "jornadakbd/input0";
116 input_dev
->keycode
= jornadakbd
->keymap
;
117 input_dev
->keycodesize
= sizeof(unsigned short);
118 input_dev
->keycodemax
= ARRAY_SIZE(jornada_std_keymap
);
119 input_dev
->id
.bustype
= BUS_HOST
;
120 input_dev
->dev
.parent
= &pdev
->dev
;
122 for (i
= 0; i
< ARRAY_SIZE(jornadakbd
->keymap
); i
++)
123 __set_bit(jornadakbd
->keymap
[i
], input_dev
->keybit
);
124 __clear_bit(KEY_RESERVED
, input_dev
->keybit
);
126 err
= request_irq(IRQ_GPIO0
,
127 jornada720_kbd_interrupt
,
128 IRQF_DISABLED
| IRQF_TRIGGER_FALLING
,
131 printk(KERN_INFO
"jornadakbd720_kbd: Unable to grab IRQ\n");
135 err
= input_register_device(jornadakbd
->input
);
141 fail2
: /* IRQ, DEVICE, MEMORY */
142 free_irq(IRQ_GPIO0
, pdev
);
143 fail1
: /* DEVICE, MEMORY */
144 platform_set_drvdata(pdev
, NULL
);
145 input_free_device(input_dev
);
150 static int __devexit
jornada720_kbd_remove(struct platform_device
*pdev
)
152 struct jornadakbd
*jornadakbd
= platform_get_drvdata(pdev
);
154 free_irq(IRQ_GPIO0
, pdev
);
155 platform_set_drvdata(pdev
, NULL
);
156 input_unregister_device(jornadakbd
->input
);
162 static struct platform_driver jornada720_kbd_driver
= {
164 .name
= "jornada720_kbd",
166 .probe
= jornada720_kbd_probe
,
167 .remove
= __devexit_p(jornada720_kbd_remove
),
170 static int __init
jornada720_kbd_init(void)
172 return platform_driver_register(&jornada720_kbd_driver
);
175 static void __exit
jornada720_kbd_exit(void)
177 platform_driver_unregister(&jornada720_kbd_driver
);
180 module_init(jornada720_kbd_init
);
181 module_exit(jornada720_kbd_exit
);