diff options
Diffstat (limited to 'ANDROID_3.4.5/drivers/input/touchscreen/mk712.c')
| -rw-r--r-- | ANDROID_3.4.5/drivers/input/touchscreen/mk712.c | 219 |
1 files changed, 0 insertions, 219 deletions
diff --git a/ANDROID_3.4.5/drivers/input/touchscreen/mk712.c b/ANDROID_3.4.5/drivers/input/touchscreen/mk712.c deleted file mode 100644 index 36e57dea..00000000 --- a/ANDROID_3.4.5/drivers/input/touchscreen/mk712.c +++ /dev/null @@ -1,219 +0,0 @@ -/* - * ICS MK712 touchscreen controller driver - * - * Copyright (c) 1999-2002 Transmeta Corporation - * Copyright (c) 2005 Rick Koch <n1gp@hotmail.com> - * Copyright (c) 2005 Vojtech Pavlik <vojtech@suse.cz> - */ - -/* - * 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. - */ - -/* - * This driver supports the ICS MicroClock MK712 TouchScreen controller, - * found in Gateway AOL Connected Touchpad computers. - * - * Documentation for ICS MK712 can be found at: - * http://www.idt.com/products/getDoc.cfm?docID=18713923 - */ - -/* - * 1999-12-18: original version, Daniel Quinlan - * 1999-12-19: added anti-jitter code, report pen-up events, fixed mk712_poll - * to use queue_empty, Nathan Laredo - * 1999-12-20: improved random point rejection, Nathan Laredo - * 2000-01-05: checked in new anti-jitter code, changed mouse protocol, fixed - * queue code, added module options, other fixes, Daniel Quinlan - * 2002-03-15: Clean up for kernel merge <alan@redhat.com> - * Fixed multi open race, fixed memory checks, fixed resource - * allocation, fixed close/powerdown bug, switched to new init - * 2005-01-18: Ported to 2.6 from 2.4.28, Rick Koch - * 2005-02-05: Rewritten for the input layer, Vojtech Pavlik - * - */ - -#include <linux/module.h> -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/errno.h> -#include <linux/delay.h> -#include <linux/ioport.h> -#include <linux/interrupt.h> -#include <linux/input.h> -#include <asm/io.h> - -MODULE_AUTHOR("Daniel Quinlan <quinlan@pathname.com>, Vojtech Pavlik <vojtech@suse.cz>"); -MODULE_DESCRIPTION("ICS MicroClock MK712 TouchScreen driver"); -MODULE_LICENSE("GPL"); - -static unsigned int mk712_io = 0x260; /* Also 0x200, 0x208, 0x300 */ -module_param_named(io, mk712_io, uint, 0); -MODULE_PARM_DESC(io, "I/O base address of MK712 touchscreen controller"); - -static unsigned int mk712_irq = 10; /* Also 12, 14, 15 */ -module_param_named(irq, mk712_irq, uint, 0); -MODULE_PARM_DESC(irq, "IRQ of MK712 touchscreen controller"); - -/* eight 8-bit registers */ -#define MK712_STATUS 0 -#define MK712_X 2 -#define MK712_Y 4 -#define MK712_CONTROL 6 -#define MK712_RATE 7 - -/* status */ -#define MK712_STATUS_TOUCH 0x10 -#define MK712_CONVERSION_COMPLETE 0x80 - -/* control */ -#define MK712_ENABLE_INT 0x01 -#define MK712_INT_ON_CONVERSION_COMPLETE 0x02 -#define MK712_INT_ON_CHANGE_IN_TOUCH_STATUS 0x04 -#define MK712_ENABLE_PERIODIC_CONVERSIONS 0x10 -#define MK712_READ_ONE_POINT 0x20 -#define MK712_POWERUP 0x40 - -static struct input_dev *mk712_dev; -static DEFINE_SPINLOCK(mk712_lock); - -static irqreturn_t mk712_interrupt(int irq, void *dev_id) -{ - unsigned char status; - static int debounce = 1; - static unsigned short last_x; - static unsigned short last_y; - - spin_lock(&mk712_lock); - - status = inb(mk712_io + MK712_STATUS); - - if (~status & MK712_CONVERSION_COMPLETE) { - debounce = 1; - goto end; - } - - if (~status & MK712_STATUS_TOUCH) { - debounce = 1; - input_report_key(mk712_dev, BTN_TOUCH, 0); - goto end; - } - - if (debounce) { - debounce = 0; - goto end; - } - - input_report_key(mk712_dev, BTN_TOUCH, 1); - input_report_abs(mk712_dev, ABS_X, last_x); - input_report_abs(mk712_dev, ABS_Y, last_y); - - end: - last_x = inw(mk712_io + MK712_X) & 0x0fff; - last_y = inw(mk712_io + MK712_Y) & 0x0fff; - input_sync(mk712_dev); - spin_unlock(&mk712_lock); - return IRQ_HANDLED; -} - -static int mk712_open(struct input_dev *dev) -{ - unsigned long flags; - - spin_lock_irqsave(&mk712_lock, flags); - - outb(0, mk712_io + MK712_CONTROL); /* Reset */ - - outb(MK712_ENABLE_INT | MK712_INT_ON_CONVERSION_COMPLETE | - MK712_INT_ON_CHANGE_IN_TOUCH_STATUS | - MK712_ENABLE_PERIODIC_CONVERSIONS | - MK712_POWERUP, mk712_io + MK712_CONTROL); - - outb(10, mk712_io + MK712_RATE); /* 187 points per second */ - - spin_unlock_irqrestore(&mk712_lock, flags); - - return 0; -} - -static void mk712_close(struct input_dev *dev) -{ - unsigned long flags; - - spin_lock_irqsave(&mk712_lock, flags); - - outb(0, mk712_io + MK712_CONTROL); - - spin_unlock_irqrestore(&mk712_lock, flags); -} - -static int __init mk712_init(void) -{ - int err; - - if (!request_region(mk712_io, 8, "mk712")) { - printk(KERN_WARNING "mk712: unable to get IO region\n"); - return -ENODEV; - } - - outb(0, mk712_io + MK712_CONTROL); - - if ((inw(mk712_io + MK712_X) & 0xf000) || /* Sanity check */ - (inw(mk712_io + MK712_Y) & 0xf000) || - (inw(mk712_io + MK712_STATUS) & 0xf333)) { - printk(KERN_WARNING "mk712: device not present\n"); - err = -ENODEV; - goto fail1; - } - - mk712_dev = input_allocate_device(); - if (!mk712_dev) { - printk(KERN_ERR "mk712: not enough memory\n"); - err = -ENOMEM; - goto fail1; - } - - mk712_dev->name = "ICS MicroClock MK712 TouchScreen"; - mk712_dev->phys = "isa0260/input0"; - mk712_dev->id.bustype = BUS_ISA; - mk712_dev->id.vendor = 0x0005; - mk712_dev->id.product = 0x0001; - mk712_dev->id.version = 0x0100; - - mk712_dev->open = mk712_open; - mk712_dev->close = mk712_close; - - mk712_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS); - mk712_dev->keybit[BIT_WORD(BTN_TOUCH)] = BIT_MASK(BTN_TOUCH); - input_set_abs_params(mk712_dev, ABS_X, 0, 0xfff, 88, 0); - input_set_abs_params(mk712_dev, ABS_Y, 0, 0xfff, 88, 0); - - if (request_irq(mk712_irq, mk712_interrupt, 0, "mk712", mk712_dev)) { - printk(KERN_WARNING "mk712: unable to get IRQ\n"); - err = -EBUSY; - goto fail1; - } - - err = input_register_device(mk712_dev); - if (err) - goto fail2; - - return 0; - - fail2: free_irq(mk712_irq, mk712_dev); - fail1: input_free_device(mk712_dev); - release_region(mk712_io, 8); - return err; -} - -static void __exit mk712_exit(void) -{ - input_unregister_device(mk712_dev); - free_irq(mk712_irq, mk712_dev); - release_region(mk712_io, 8); -} - -module_init(mk712_init); -module_exit(mk712_exit); |