diff options
Diffstat (limited to 'ANDROID_3.4.5/drivers/input/touchscreen/htcpen.c')
| -rw-r--r-- | ANDROID_3.4.5/drivers/input/touchscreen/htcpen.c | 250 |
1 files changed, 0 insertions, 250 deletions
diff --git a/ANDROID_3.4.5/drivers/input/touchscreen/htcpen.c b/ANDROID_3.4.5/drivers/input/touchscreen/htcpen.c deleted file mode 100644 index d13143b6..00000000 --- a/ANDROID_3.4.5/drivers/input/touchscreen/htcpen.c +++ /dev/null @@ -1,250 +0,0 @@ -/* - * HTC Shift touchscreen driver - * - * Copyright (C) 2008 Pau Oliva Fora <pof@eslack.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/errno.h> -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/input.h> -#include <linux/interrupt.h> -#include <linux/io.h> -#include <linux/init.h> -#include <linux/irq.h> -#include <linux/isa.h> -#include <linux/ioport.h> -#include <linux/dmi.h> - -MODULE_AUTHOR("Pau Oliva Fora <pau@eslack.org>"); -MODULE_DESCRIPTION("HTC Shift touchscreen driver"); -MODULE_LICENSE("GPL"); - -#define HTCPEN_PORT_IRQ_CLEAR 0x068 -#define HTCPEN_PORT_INIT 0x06c -#define HTCPEN_PORT_INDEX 0x0250 -#define HTCPEN_PORT_DATA 0x0251 -#define HTCPEN_IRQ 3 - -#define DEVICE_ENABLE 0xa2 -#define DEVICE_DISABLE 0xa3 - -#define X_INDEX 3 -#define Y_INDEX 5 -#define TOUCH_INDEX 0xb -#define LSB_XY_INDEX 0xc -#define X_AXIS_MAX 2040 -#define Y_AXIS_MAX 2040 - -static bool invert_x; -module_param(invert_x, bool, 0644); -MODULE_PARM_DESC(invert_x, "If set, X axis is inverted"); -static bool invert_y; -module_param(invert_y, bool, 0644); -MODULE_PARM_DESC(invert_y, "If set, Y axis is inverted"); - -static irqreturn_t htcpen_interrupt(int irq, void *handle) -{ - struct input_dev *htcpen_dev = handle; - unsigned short x, y, xy; - - /* 0 = press; 1 = release */ - outb_p(TOUCH_INDEX, HTCPEN_PORT_INDEX); - - if (inb_p(HTCPEN_PORT_DATA)) { - input_report_key(htcpen_dev, BTN_TOUCH, 0); - } else { - outb_p(X_INDEX, HTCPEN_PORT_INDEX); - x = inb_p(HTCPEN_PORT_DATA); - - outb_p(Y_INDEX, HTCPEN_PORT_INDEX); - y = inb_p(HTCPEN_PORT_DATA); - - outb_p(LSB_XY_INDEX, HTCPEN_PORT_INDEX); - xy = inb_p(HTCPEN_PORT_DATA); - - /* get high resolution value of X and Y using LSB */ - x = X_AXIS_MAX - ((x * 8) + ((xy >> 4) & 0xf)); - y = (y * 8) + (xy & 0xf); - if (invert_x) - x = X_AXIS_MAX - x; - if (invert_y) - y = Y_AXIS_MAX - y; - - if (x != X_AXIS_MAX && x != 0) { - input_report_key(htcpen_dev, BTN_TOUCH, 1); - input_report_abs(htcpen_dev, ABS_X, x); - input_report_abs(htcpen_dev, ABS_Y, y); - } - } - - input_sync(htcpen_dev); - - inb_p(HTCPEN_PORT_IRQ_CLEAR); - - return IRQ_HANDLED; -} - -static int htcpen_open(struct input_dev *dev) -{ - outb_p(DEVICE_ENABLE, HTCPEN_PORT_INIT); - - return 0; -} - -static void htcpen_close(struct input_dev *dev) -{ - outb_p(DEVICE_DISABLE, HTCPEN_PORT_INIT); - synchronize_irq(HTCPEN_IRQ); -} - -static int __devinit htcpen_isa_probe(struct device *dev, unsigned int id) -{ - struct input_dev *htcpen_dev; - int err = -EBUSY; - - if (!request_region(HTCPEN_PORT_IRQ_CLEAR, 1, "htcpen")) { - printk(KERN_ERR "htcpen: unable to get IO region 0x%x\n", - HTCPEN_PORT_IRQ_CLEAR); - goto request_region1_failed; - } - - if (!request_region(HTCPEN_PORT_INIT, 1, "htcpen")) { - printk(KERN_ERR "htcpen: unable to get IO region 0x%x\n", - HTCPEN_PORT_INIT); - goto request_region2_failed; - } - - if (!request_region(HTCPEN_PORT_INDEX, 2, "htcpen")) { - printk(KERN_ERR "htcpen: unable to get IO region 0x%x\n", - HTCPEN_PORT_INDEX); - goto request_region3_failed; - } - - htcpen_dev = input_allocate_device(); - if (!htcpen_dev) { - printk(KERN_ERR "htcpen: can't allocate device\n"); - err = -ENOMEM; - goto input_alloc_failed; - } - - htcpen_dev->name = "HTC Shift EC TouchScreen"; - htcpen_dev->id.bustype = BUS_ISA; - - htcpen_dev->evbit[0] = BIT_MASK(EV_ABS) | BIT_MASK(EV_KEY); - htcpen_dev->keybit[BIT_WORD(BTN_TOUCH)] = BIT_MASK(BTN_TOUCH); - input_set_abs_params(htcpen_dev, ABS_X, 0, X_AXIS_MAX, 0, 0); - input_set_abs_params(htcpen_dev, ABS_Y, 0, Y_AXIS_MAX, 0, 0); - - htcpen_dev->open = htcpen_open; - htcpen_dev->close = htcpen_close; - - err = request_irq(HTCPEN_IRQ, htcpen_interrupt, 0, "htcpen", - htcpen_dev); - if (err) { - printk(KERN_ERR "htcpen: irq busy\n"); - goto request_irq_failed; - } - - inb_p(HTCPEN_PORT_IRQ_CLEAR); - - err = input_register_device(htcpen_dev); - if (err) - goto input_register_failed; - - dev_set_drvdata(dev, htcpen_dev); - - return 0; - - input_register_failed: - free_irq(HTCPEN_IRQ, htcpen_dev); - request_irq_failed: - input_free_device(htcpen_dev); - input_alloc_failed: - release_region(HTCPEN_PORT_INDEX, 2); - request_region3_failed: - release_region(HTCPEN_PORT_INIT, 1); - request_region2_failed: - release_region(HTCPEN_PORT_IRQ_CLEAR, 1); - request_region1_failed: - return err; -} - -static int __devexit htcpen_isa_remove(struct device *dev, unsigned int id) -{ - struct input_dev *htcpen_dev = dev_get_drvdata(dev); - - input_unregister_device(htcpen_dev); - - free_irq(HTCPEN_IRQ, htcpen_dev); - - release_region(HTCPEN_PORT_INDEX, 2); - release_region(HTCPEN_PORT_INIT, 1); - release_region(HTCPEN_PORT_IRQ_CLEAR, 1); - - dev_set_drvdata(dev, NULL); - - return 0; -} - -#ifdef CONFIG_PM -static int htcpen_isa_suspend(struct device *dev, unsigned int n, - pm_message_t state) -{ - outb_p(DEVICE_DISABLE, HTCPEN_PORT_INIT); - - return 0; -} - -static int htcpen_isa_resume(struct device *dev, unsigned int n) -{ - outb_p(DEVICE_ENABLE, HTCPEN_PORT_INIT); - - return 0; -} -#endif - -static struct isa_driver htcpen_isa_driver = { - .probe = htcpen_isa_probe, - .remove = __devexit_p(htcpen_isa_remove), -#ifdef CONFIG_PM - .suspend = htcpen_isa_suspend, - .resume = htcpen_isa_resume, -#endif - .driver = { - .owner = THIS_MODULE, - .name = "htcpen", - } -}; - -static struct dmi_system_id __initdata htcshift_dmi_table[] = { - { - .ident = "Shift", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "High Tech Computer Corp"), - DMI_MATCH(DMI_PRODUCT_NAME, "Shift"), - }, - }, - { } -}; -MODULE_DEVICE_TABLE(dmi, htcshift_dmi_table); - -static int __init htcpen_isa_init(void) -{ - if (!dmi_check_system(htcshift_dmi_table)) - return -ENODEV; - - return isa_register_driver(&htcpen_isa_driver, 1); -} - -static void __exit htcpen_isa_exit(void) -{ - isa_unregister_driver(&htcpen_isa_driver); -} - -module_init(htcpen_isa_init); -module_exit(htcpen_isa_exit); |