linux/drivers/input/keyboard/aaed2000_kbd.c
Jiri Slaby 7b19ada2ed get rid of input BIT* duplicate defines
get rid of input BIT* duplicate defines

use newly global defined macros for input layer. Also remove includes of
input.h from non-input sources only for BIT macro definiton. Define the
macro temporarily in local manner, all those local definitons will be
removed further in this patchset (to not break bisecting).
BIT macro will be globally defined (1<<x)

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Cc: <dtor@mail.ru>
Acked-by: Jiri Kosina <jkosina@suse.cz>
Cc: <lenb@kernel.org>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Cc: <perex@suse.cz>
Acked-by: Mauro Carvalho Chehab <mchehab@infradead.org>
Cc: <vernux@us.ibm.com>
Cc: <malattia@linux.it>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-19 11:53:42 -07:00

183 lines
4.8 KiB
C

/*
* Keyboard driver for the AAED-2000 dev board
*
* Copyright (c) 2006 Nicolas Bellido Y Ortega
*
* Based on corgikbd.c
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
*/
#include <linux/delay.h>
#include <linux/platform_device.h>
#include <linux/init.h>
#include <linux/input-polldev.h>
#include <linux/interrupt.h>
#include <linux/jiffies.h>
#include <linux/module.h>
#include <linux/slab.h>
#include <asm/arch/hardware.h>
#include <asm/arch/aaed2000.h>
#define KB_ROWS 12
#define KB_COLS 8
#define KB_ROWMASK(r) (1 << (r))
#define SCANCODE(r,c) (((c) * KB_ROWS) + (r))
#define NR_SCANCODES (KB_COLS * KB_ROWS)
#define SCAN_INTERVAL (50) /* ms */
#define KB_ACTIVATE_DELAY (20) /* us */
static unsigned char aaedkbd_keycode[NR_SCANCODES] = {
KEY_9, KEY_0, KEY_MINUS, KEY_EQUAL, KEY_BACKSPACE, 0, KEY_SPACE, KEY_KP6, 0, KEY_KPDOT, 0, 0,
KEY_K, KEY_M, KEY_O, KEY_DOT, KEY_SLASH, 0, KEY_F, 0, 0, 0, KEY_LEFTSHIFT, 0,
KEY_I, KEY_P, KEY_LEFTBRACE, KEY_RIGHTBRACE, KEY_BACKSLASH, 0, 0, 0, 0, 0, KEY_RIGHTSHIFT, 0,
KEY_8, KEY_L, KEY_SEMICOLON, KEY_APOSTROPHE, KEY_ENTER, 0, 0, 0, 0, 0, 0, 0,
KEY_J, KEY_H, KEY_B, KEY_KP8, KEY_KP4, 0, KEY_C, KEY_D, KEY_S, KEY_A, 0, KEY_CAPSLOCK,
KEY_Y, KEY_U, KEY_N, KEY_T, 0, 0, KEY_R, KEY_E, KEY_W, KEY_Q, 0, KEY_TAB,
KEY_7, KEY_6, KEY_G, 0, KEY_5, 0, KEY_4, KEY_3, KEY_2, KEY_1, 0, KEY_GRAVE,
0, 0, KEY_COMMA, 0, KEY_KP2, 0, KEY_V, KEY_LEFTALT, KEY_X, KEY_Z, 0, KEY_LEFTCTRL
};
struct aaedkbd {
unsigned char keycode[ARRAY_SIZE(aaedkbd_keycode)];
struct input_polled_dev *poll_dev;
int kbdscan_state[KB_COLS];
int kbdscan_count[KB_COLS];
};
#define KBDSCAN_STABLE_COUNT 2
static void aaedkbd_report_col(struct aaedkbd *aaedkbd,
unsigned int col, unsigned int rowd)
{
unsigned int scancode, pressed;
unsigned int row;
for (row = 0; row < KB_ROWS; row++) {
scancode = SCANCODE(row, col);
pressed = rowd & KB_ROWMASK(row);
input_report_key(aaedkbd->poll_dev->input,
aaedkbd->keycode[scancode], pressed);
}
}
/* Scan the hardware keyboard and push any changes up through the input layer */
static void aaedkbd_poll(struct input_polled_dev *dev)
{
struct aaedkbd *aaedkbd = dev->private;
unsigned int col, rowd;
col = 0;
do {
AAEC_GPIO_KSCAN = col + 8;
udelay(KB_ACTIVATE_DELAY);
rowd = AAED_EXT_GPIO & AAED_EGPIO_KBD_SCAN;
if (rowd != aaedkbd->kbdscan_state[col]) {
aaedkbd->kbdscan_count[col] = 0;
aaedkbd->kbdscan_state[col] = rowd;
} else if (++aaedkbd->kbdscan_count[col] >= KBDSCAN_STABLE_COUNT) {
aaedkbd_report_col(aaedkbd, col, rowd);
col++;
}
} while (col < KB_COLS);
AAEC_GPIO_KSCAN = 0x07;
input_sync(dev->input);
}
static int __devinit aaedkbd_probe(struct platform_device *pdev)
{
struct aaedkbd *aaedkbd;
struct input_polled_dev *poll_dev;
struct input_dev *input_dev;
int i;
int error;
aaedkbd = kzalloc(sizeof(struct aaedkbd), GFP_KERNEL);
poll_dev = input_allocate_polled_device();
if (!aaedkbd || !poll_dev) {
error = -ENOMEM;
goto fail;
}
platform_set_drvdata(pdev, aaedkbd);
aaedkbd->poll_dev = poll_dev;
memcpy(aaedkbd->keycode, aaedkbd_keycode, sizeof(aaedkbd->keycode));
poll_dev->private = aaedkbd;
poll_dev->poll = aaedkbd_poll;
poll_dev->poll_interval = SCAN_INTERVAL;
input_dev = poll_dev->input;
input_dev->name = "AAED-2000 Keyboard";
input_dev->phys = "aaedkbd/input0";
input_dev->id.bustype = BUS_HOST;
input_dev->id.vendor = 0x0001;
input_dev->id.product = 0x0001;
input_dev->id.version = 0x0100;
input_dev->dev.parent = &pdev->dev;
input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REP);
input_dev->keycode = aaedkbd->keycode;
input_dev->keycodesize = sizeof(unsigned char);
input_dev->keycodemax = ARRAY_SIZE(aaedkbd_keycode);
for (i = 0; i < ARRAY_SIZE(aaedkbd_keycode); i++)
set_bit(aaedkbd->keycode[i], input_dev->keybit);
clear_bit(0, input_dev->keybit);
error = input_register_polled_device(aaedkbd->poll_dev);
if (error)
goto fail;
return 0;
fail: kfree(aaedkbd);
input_free_polled_device(poll_dev);
return error;
}
static int __devexit aaedkbd_remove(struct platform_device *pdev)
{
struct aaedkbd *aaedkbd = platform_get_drvdata(pdev);
input_unregister_polled_device(aaedkbd->poll_dev);
input_free_polled_device(aaedkbd->poll_dev);
kfree(aaedkbd);
return 0;
}
static struct platform_driver aaedkbd_driver = {
.probe = aaedkbd_probe,
.remove = __devexit_p(aaedkbd_remove),
.driver = {
.name = "aaed2000-keyboard",
},
};
static int __init aaedkbd_init(void)
{
return platform_driver_register(&aaedkbd_driver);
}
static void __exit aaedkbd_exit(void)
{
platform_driver_unregister(&aaedkbd_driver);
}
module_init(aaedkbd_init);
module_exit(aaedkbd_exit);
MODULE_AUTHOR("Nicolas Bellido Y Ortega");
MODULE_DESCRIPTION("AAED-2000 Keyboard Driver");
MODULE_LICENSE("GPLv2");