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Commit b0a4e1aa authored by Kristoffer Ericson's avatar Kristoffer Ericson Committed by Dmitry Torokhov
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Input: add support for HP Jornada 7xx onboard keyboard 



The driver supports onboard keyboards of HP Jornada 710/720/728

Signed-off-by: default avatarKristoffer Ericson <kristoffer.ericson@gmail.com>
Signed-off-by: default avatarDmitry Torokhov <dtor@mail.ru>
parent 2aa2cb9e

drivers/input/keyboard/Kconfig

+10 −0
Original line number Diff line number Diff line
@@ -219,6 +219,16 @@ config KEYBOARD_HP6XX 
	  To compile this driver as a module, choose M here: the

	  module will be called jornada680_kbd.



config KEYBOARD_HP7XX

	tristate "HP Jornada 7XX Keyboard Driver"

	depends on SA1100_JORNADA720_SSP && SA1100_SSP

	help

	  Say Y here to add support for the HP Jornada 7xx (710/720/728)

	  onboard keyboard.



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

	  module will be called jornada720_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
@@ -22,4 +22,5 @@ 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

obj-$(CONFIG_KEYBOARD_HP7XX)		+= jornada720_kbd.o

drivers/input/keyboard/jornada720_kbd.c

0 → 100644
+181 −0
Original line number Diff line number Diff line 
/*

 * drivers/input/keyboard/jornada720_kbd.c

 *

 * HP Jornada 720 keyboard platform driver

 *

 * Copyright (C) 2006/2007 Kristoffer Ericson <Kristoffer.Ericson@Gmail.com>

 *

 *    Copyright (C) 2006 jornada 720 kbd driver by

		Filip Zyzniewsk <Filip.Zyzniewski@tefnet.plX

 *     based on (C) 2004 jornada 720 kbd driver by

		Alex Lange <chicken@handhelds.org>

 *

 * 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/device.h>

#include <linux/errno.h>

#include <linux/init.h>

#include <linux/interrupt.h>

#include <linux/init.h>

#include <linux/input.h>

#include <linux/kernel.h>

#include <linux/module.h>

#include <linux/platform_device.h>



#include <asm/arch/jornada720.h>

#include <asm/hardware.h>



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

MODULE_DESCRIPTION("HP Jornada 710/720/728 keyboard driver");

MODULE_LICENSE("GPLv2");



static unsigned short jornada_std_keymap[128] = {					/* ROW */

	0, KEY_ESC, KEY_F1, KEY_F2, KEY_F3, KEY_F4, KEY_F5, KEY_F6, KEY_F7,		/* #1  */

	KEY_F8, KEY_F9, KEY_F10, KEY_F11, KEY_VOLUMEUP, KEY_VOLUMEDOWN, KEY_MUTE,	/*  -> */

	0, KEY_1, KEY_2, KEY_3, KEY_4, KEY_5, KEY_6, KEY_7, KEY_8, KEY_9,		/* #2  */

	KEY_0, KEY_MINUS, KEY_EQUAL,0, 0, 0,						/*  -> */

	0, KEY_Q, KEY_W, KEY_E, KEY_R, KEY_T, KEY_Y, KEY_U, KEY_I, KEY_O,		/* #3  */

	KEY_P, KEY_BACKSLASH, KEY_BACKSPACE, 0, 0, 0,					/*  -> */

	0, KEY_A, KEY_S, KEY_D, KEY_F, KEY_G, KEY_H, KEY_J, KEY_K, KEY_L,		/* #4  */

	KEY_SEMICOLON, KEY_LEFTBRACE, KEY_RIGHTBRACE, 0, 0, 0,				/*  -> */

	0, KEY_Z, KEY_X, KEY_C, KEY_V, KEY_B, KEY_N, KEY_M, KEY_COMMA,			/* #5  */

	KEY_DOT, KEY_KPMINUS, KEY_APOSTROPHE, KEY_ENTER, 0, 0,0,			/*  -> */

	0, KEY_TAB, 0, KEY_LEFTSHIFT, 0, KEY_APOSTROPHE, 0, 0, 0, 0,			/* #6  */

	KEY_UP, 0, KEY_RIGHTSHIFT, 0, 0, 0,0, 0, 0, 0, 0, KEY_LEFTALT, KEY_GRAVE,	/*  -> */

	0, 0, KEY_LEFT, KEY_DOWN, KEY_RIGHT, 0, 0, 0, 0,0, KEY_KPASTERISK,		/*  -> */

	KEY_LEFTCTRL, 0, KEY_SPACE, 0, 0, 0, KEY_SLASH, KEY_DELETE, 0, 0,		/*  -> */

	0, 0, 0, KEY_POWER,								/*  -> */

};



struct jornadakbd {

	unsigned short keymap[ARRAY_SIZE(jornada_std_keymap)];

	struct input_dev *input;

};



static irqreturn_t jornada720_kbd_interrupt(int irq, void *dev_id)

{

	struct platform_device *pdev = dev_id;

	struct jornadakbd *jornadakbd = platform_get_drvdata(pdev);

	u8 count, kbd_data;



	/* startup ssp with spinlock */

	jornada_ssp_start();



	if (jornada_ssp_inout(GETSCANKEYCODE) != TXDUMMY) {

		printk(KERN_DEBUG

			"jornada720_kbd: "

			"GetKeycode command failed with ETIMEDOUT, "

			"flushed bus\n");

	} else {

		/* How many keycodes are waiting for us? */

		count = jornada_ssp_byte(TXDUMMY);



		/* Lets drag them out one at a time */

		while (count--) {

			/* Exchange TxDummy for location (keymap[kbddata]) */

			kbd_data = jornada_ssp_byte(TXDUMMY);



			input_report_key(jornadakbd->input,

					 jornadakbd->keymap[kbd_data & 0x7f],

					 !(kbd_data & 0x80));

			input_sync(jornadakbd->input);

		}

	}



	/* release spinlock and turn off ssp */

	jornada_ssp_end();



	return IRQ_HANDLED;

};



static int __devinit jornada720_kbd_probe(struct platform_device *pdev)

{

	struct jornadakbd *jornadakbd;

	struct input_dev *input_dev;

	int i, err;



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

	input_dev = input_allocate_device();

	if (!jornadakbd || !input_dev) {

		err = -ENOMEM;

		goto fail1;

	}



	platform_set_drvdata(pdev, jornadakbd);



	memcpy(jornadakbd->keymap, jornada_std_keymap,

		sizeof(jornada_std_keymap));

	jornadakbd->input = input_dev;



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

	input_dev->name = "HP Jornada 720 keyboard";

	input_dev->phys = "jornadakbd/input0";

	input_dev->keycode = jornadakbd->keymap;

	input_dev->keycodesize = sizeof(unsigned short);

	input_dev->keycodemax = ARRAY_SIZE(jornada_std_keymap);

	input_dev->id.bustype = BUS_HOST;

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



	for (i = 0; i < ARRAY_SIZE(jornadakbd->keymap); i++)

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

	__clear_bit(KEY_RESERVED, input_dev->keybit);



	err = request_irq(IRQ_GPIO0,

			  jornada720_kbd_interrupt,

			  IRQF_DISABLED | IRQF_TRIGGER_FALLING,

			  "jornadakbd", pdev);

	if (err) {

		printk(KERN_INFO "jornadakbd720_kbd: Unable to grab IRQ\n");

		goto fail1;

	}



	err = input_register_device(jornadakbd->input);

	if (err)

		goto fail2;



	return 0;



 fail2:	/* IRQ, DEVICE, MEMORY */

	free_irq(IRQ_GPIO0, pdev);

 fail1:	/* DEVICE, MEMORY */

	platform_set_drvdata(pdev, NULL);

	input_free_device(input_dev);

	kfree(jornadakbd);

	return err;

};



static int __devexit jornada720_kbd_remove(struct platform_device *pdev)

{

	struct jornadakbd *jornadakbd = platform_get_drvdata(pdev);



	free_irq(IRQ_GPIO0, pdev);

	platform_set_drvdata(pdev, NULL);

	input_unregister_device(jornadakbd->input);

	kfree(jornadakbd);



	return 0;

}



static struct platform_driver jornada720_kbd_driver = {

	.driver  = {

		.name    = "jornada720_kbd",

	 },

	.probe   = jornada720_kbd_probe,

	.remove  = __devexit_p(jornada720_kbd_remove),

};



static int __init jornada720_kbd_init(void)

{

	return platform_driver_register(&jornada720_kbd_driver);

}



static void __exit jornada720_kbd_exit(void)

{

	platform_driver_unregister(&jornada720_kbd_driver);

}



module_init(jornada720_kbd_init);

module_exit(jornada720_kbd_exit);