Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 2aa2cb9e authored by Kristoffer Ericson's avatar Kristoffer Ericson Committed by Dmitry Torokhov
Browse files

Input: add support for HP Jornada onboard keyboard (HP6XX) 



Signed-off-by: default avatarKristoffer Ericson <kristoffer.ericson@gmail.com>
Signed-off-by: default avatarDmitry Torokhov <dtor@mail.ru>
parent 1788180e

drivers/input/keyboard/Kconfig

+11 −0
Original line number Diff line number Diff line
@@ -208,6 +208,17 @@ config KEYBOARD_HIL 
	  This driver implements support for HIL-keyboards attached

	  to your machine, so normally you should say Y here.



config KEYBOARD_HP6XX

	tristate "HP Jornada 6XX Keyboard support"

	depends on SH_HP6XX

	select INPUT_POLLDEV

	help

	  This adds support for the onboard keyboard found on

	  HP Jornada 620/660/680/690.



	  To compile this driver as a module, choose M here: the

	  module will be called jornada680_kbd.



config KEYBOARD_OMAP

	tristate "TI OMAP keypad support"

	depends on (ARCH_OMAP1 || ARCH_OMAP2)

drivers/input/keyboard/Makefile

+1 −0
Original line number Diff line number Diff line
@@ -21,4 +21,5 @@ obj-$(CONFIG_KEYBOARD_OMAP) += omap-keypad.o 
obj-$(CONFIG_KEYBOARD_PXA27x)		+= pxa27x_keyboard.o

obj-$(CONFIG_KEYBOARD_AAED2000)		+= aaed2000_kbd.o

obj-$(CONFIG_KEYBOARD_GPIO)		+= gpio_keys.o

obj-$(CONFIG_KEYBOARD_HP6XX)		+= jornada680_kbd.o

drivers/input/keyboard/jornada680_kbd.c

0 → 100644
+277 −0
Original line number Diff line number Diff line 
/*

 * drivers/input/keyboard/jornada680_kbd.c

 *

 * HP Jornada 620/660/680/690 scan keyboard platform driver

 *  Copyright (C) 2007  Kristoffer Ericson <Kristoffer.Ericson@gmail.com>

 *

 * Based on hp680_keyb.c

 *  Copyright (C) 2006 Paul Mundt

 *  Copyright (C) 2005 Andriy Skulysh

 * Split from drivers/input/keyboard/hp600_keyb.c

 *  Copyright (C) 2000 Yaegashi Takeshi (hp6xx kbd scan routine and translation table)

 *  Copyright (C) 2000 Niibe Yutaka (HP620 Keyb translation table)

 *

 * 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/input.h>

#include <linux/kernel.h>

#include <linux/module.h>

#include <linux/init.h>

#include <linux/input-polldev.h>

#include <linux/jiffies.h>

#include <linux/platform_device.h>

#include <linux/interrupt.h>



#include <asm/delay.h>

#include <asm/io.h>



#define PCCR 0xa4000104

#define PDCR 0xa4000106

#define PECR 0xa4000108

#define PFCR 0xa400010a

#define PCDR 0xa4000124

#define PDDR 0xa4000126

#define PEDR 0xa4000128

#define PFDR 0xa400012a

#define PGDR 0xa400012c

#define PHDR 0xa400012e

#define PJDR 0xa4000130

#define PKDR 0xa4000132

#define PLDR 0xa4000134



static const unsigned short jornada_scancodes[] = {

/* PTD1 */	KEY_CAPSLOCK, KEY_MACRO, KEY_LEFTCTRL, 0, KEY_ESC, 0, 0, 0,	/*  1  -> 8   */

		KEY_F1, KEY_F2, KEY_F3, KEY_F8, KEY_F7, KEY_F2, KEY_F4, KEY_F5,	/*  9  -> 16  */

/* PTD5 */	KEY_SLASH, KEY_APOSTROPHE, KEY_ENTER, 0, KEY_Z, 0, 0, 0,	/*  17 -> 24  */

		KEY_X, KEY_C, KEY_V, KEY_DOT, KEY_COMMA, KEY_M, KEY_B, KEY_N,	/*  25 -> 32  */

/* PTD7 */	KEY_KP2, KEY_KP6, 0, 0, 0, 0, 0, 0,				/*  33 -> 40  */

		0, 0, 0, KEY_KP4, 0, 0, KEY_LEFTALT, KEY_HANJA,			/*  41 -> 48  */

/* PTE0 */	0, 0, 0, 0, KEY_FINANCE, 0, 0, 0,				/*  49 -> 56  */

		KEY_LEFTCTRL, 0, KEY_SPACE, KEY_KPDOT, KEY_VOLUMEUP, 249, 0, 0, /*  57 -> 64  */

/* PTE1 */	KEY_SEMICOLON, KEY_RIGHTBRACE, KEY_BACKSLASH, 0, KEY_A, 0, 0, 0,/*  65 -> 72  */

		KEY_S, KEY_D, KEY_F, KEY_L, KEY_K, KEY_J, KEY_G, KEY_H,		/*  73 -> 80  */

/* PTE3 */	KEY_KP8, KEY_LEFTMETA, KEY_RIGHTSHIFT, 0, KEY_TAB, 0, 0,0,	/*  81 -> 88  */

		0, KEY_LEFTSHIFT, 0, 0, 0, 0, 0, 0,				/*  89 -> 96  */

/* PTE6 */	KEY_P, KEY_LEFTBRACE, KEY_BACKSPACE, 0, KEY_Q, 0, 0, 0,		/*  97 -> 104 */

		KEY_W, KEY_E, KEY_R, KEY_O, KEY_I, KEY_U, KEY_T, KEY_R,		/* 105 -> 112 */

/* PTE7 */	KEY_0, KEY_MINUS, KEY_EQUAL, 0, KEY_1, 0, 0, 0,			/* 113 -> 120 */

		KEY_2, KEY_3, KEY_4, KEY_9, KEY_8, KEY_7, KEY_5, KEY_6,		/* 121 -> 128 */

/* **** */	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,

		0, 0, 0, 0, 0

};



#define JORNADA_SCAN_SIZE	18



struct jornadakbd {

	struct input_polled_dev *poll_dev;

	unsigned short keymap[ARRAY_SIZE(jornada_scancodes)];

	unsigned char length;

	unsigned char old_scan[JORNADA_SCAN_SIZE];

	unsigned char new_scan[JORNADA_SCAN_SIZE];

};



static void jornada_parse_kbd(struct jornadakbd *jornadakbd)

{

	struct input_dev *input_dev = jornadakbd->poll_dev->input;

	unsigned short *keymap = jornadakbd->keymap;

	unsigned int sync_me = 0;

	unsigned int i, j;



	for (i = 0; i < JORNADA_SCAN_SIZE; i++) {

		unsigned char new = jornadakbd->new_scan[i];

		unsigned char old = jornadakbd->old_scan[i];

		unsigned int xor = new ^ old;



		if (xor == 0)

			continue;



		for (j = 0; j < 8; j++) {

			unsigned int bit = 1 << j;

			if (xor & bit) {

				unsigned int scancode = (i << 3) + j;

				input_event(input_dev,

					    EV_MSC, MSC_SCAN, scancode);

				input_report_key(input_dev,

						 keymap[scancode],

						 !(new & bit));

				sync_me = 1;

			}

		}

	}



	if (sync_me)

	    input_sync(input_dev);

}



static void jornada_scan_keyb(unsigned char *s)

{

	int i;

	unsigned short ec_static, dc_static; /* = UINT16_t */

	unsigned char matrix_switch[] = {

		0xfd, 0xff,   /* PTD1 PD(1) */

		0xdf, 0xff,   /* PTD5 PD(5) */

		0x7f, 0xff,   /* PTD7 PD(7) */

		0xff, 0xfe,   /* PTE0 PE(0) */

		0xff, 0xfd,   /* PTE1 PE(1) */

		0xff, 0xf7,   /* PTE3 PE(3) */

		0xff, 0xbf,   /* PTE6 PE(6) */

		0xff, 0x7f,   /* PTE7 PE(7) */

	}, *t = matrix_switch;

	/* PD(x) :

	1.   0xcc0c & (1~(1 << (2*(x)+1)))))

	2.   (0xf0cf & 0xfffff) */

	/* PE(x) :

	1.   0xcc0c & 0xffff

	2.   0xf0cf & (1~(1 << (2*(x)+1))))) */

	unsigned short matrix_PDE[] = {

		0xcc04, 0xf0cf,  /* PD(1) */

		0xc40c, 0xf0cf,	 /* PD(5) */

		0x4c0c, 0xf0cf,  /* PD(7) */

		0xcc0c, 0xf0cd,  /* PE(0) */

		0xcc0c, 0xf0c7,	 /* PE(1) */

		0xcc0c, 0xf04f,  /* PE(3) */

		0xcc0c, 0xd0cf,	 /* PE(6) */

		0xcc0c, 0x70cf,	 /* PE(7) */

	}, *y = matrix_PDE;



	/* Save these control reg bits */

	dc_static = (ctrl_inw(PDCR) & (~0xcc0c));

	ec_static = (ctrl_inw(PECR) & (~0xf0cf));



	for (i = 0; i < 8; i++) {

		/* disable output for all but the one we want to scan */

		ctrl_outw((dc_static | *y++), PDCR);

		ctrl_outw((ec_static | *y++), PECR);

		udelay(5);



		/* Get scanline row */

		ctrl_outb(*t++, PDDR);

		ctrl_outb(*t++, PEDR);

		udelay(50);



		/* Read data */

		*s++ = ctrl_inb(PCDR);

		*s++ = ctrl_inb(PFDR);

	}

	/* Scan no lines */

	ctrl_outb(0xff, PDDR);

	ctrl_outb(0xff, PEDR);



	/* Enable all scanlines */

	ctrl_outw((dc_static | (0x5555 & 0xcc0c)),PDCR);

	ctrl_outw((ec_static | (0x5555 & 0xf0cf)),PECR);



	/* Ignore extra keys and events */

	*s++ = ctrl_inb(PGDR);

	*s++ = ctrl_inb(PHDR);

}



static void jornadakbd680_poll(struct input_polled_dev *dev)

{

	struct jornadakbd *jornadakbd = dev->private;



	jornada_scan_keyb(jornadakbd->new_scan);

	jornada_parse_kbd(jornadakbd);

	memcpy(jornadakbd->old_scan, jornadakbd->new_scan, JORNADA_SCAN_SIZE);

}



static int __devinit jornada680kbd_probe(struct platform_device *pdev)

{

	struct jornadakbd *jornadakbd;

	struct input_polled_dev *poll_dev;

	struct input_dev *input_dev;

	int i, error;



	jornadakbd = kzalloc(sizeof(struct jornadakbd), GFP_KERNEL);

	if (!jornadakbd)

		return -ENOMEM;



	poll_dev = input_allocate_polled_device();

	if (!poll_dev) {

		error = -ENOMEM;

		goto failed;

	}



	platform_set_drvdata(pdev, jornadakbd);



	jornadakbd->poll_dev = poll_dev;



	memcpy(jornadakbd->keymap, jornada_scancodes,

		sizeof(jornadakbd->keymap));



	poll_dev->private = jornadakbd;

	poll_dev->poll = jornadakbd680_poll;

	poll_dev->poll_interval = 50; /* msec */



	input_dev = poll_dev->input;

	input_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_REP);

	input_dev->name = "HP Jornada 680 keyboard";

	input_dev->phys = "jornadakbd/input0";

	input_dev->keycode = jornadakbd->keymap;

	input_dev->keycodesize = sizeof(unsigned short);

	input_dev->keycodemax = ARRAY_SIZE(jornada_scancodes);

	input_dev->dev.parent = &pdev->dev;

	input_dev->id.bustype = BUS_HOST;



	for (i = 0; i < 128; i++)

		if (jornadakbd->keymap[i])

			__set_bit(jornadakbd->keymap[i], input_dev->keybit);

	__clear_bit(KEY_RESERVED, input_dev->keybit);



	input_set_capability(input_dev, EV_MSC, MSC_SCAN);



	error = input_register_polled_device(jornadakbd->poll_dev);

	if (error)

		goto failed;



	return 0;



 failed:

	printk(KERN_ERR "Jornadakbd: failed to register driver, error: %d\n",

		error);

	platform_set_drvdata(pdev, NULL);

	input_free_polled_device(poll_dev);

	kfree(jornadakbd);

	return error;



}



static int __devexit jornada680kbd_remove(struct platform_device *pdev)

{

	struct jornadakbd *jornadakbd = platform_get_drvdata(pdev);



	platform_set_drvdata(pdev, NULL);

	input_unregister_polled_device(jornadakbd->poll_dev);

	input_free_polled_device(jornadakbd->poll_dev);

	kfree(jornadakbd);



	return 0;

}



static struct platform_driver jornada680kbd_driver = {

	.driver	= {

		.name	= "jornada680_kbd",

	},

	.probe	= jornada680kbd_probe,

	.remove	= __devexit_p(jornada680kbd_remove),

};



static int __init jornada680kbd_init(void)

{

	return platform_driver_register(&jornada680kbd_driver);

}



static void __exit jornada680kbd_exit(void)

{

	platform_driver_unregister(&jornada680kbd_driver);

}



module_init(jornada680kbd_init);

module_exit(jornada680kbd_exit);



MODULE_AUTHOR("Kristoffer Ericson <kristoffer.ericson@gmail.com>");

MODULE_DESCRIPTION("HP Jornada 620/660/680/690 Keyboard Driver");

MODULE_LICENSE("GPLv2");