aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/input/touchscreen/hp680_ts_input.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/input/touchscreen/hp680_ts_input.c')
-rw-r--r--drivers/input/touchscreen/hp680_ts_input.c129
1 files changed, 0 insertions, 129 deletions
diff --git a/drivers/input/touchscreen/hp680_ts_input.c b/drivers/input/touchscreen/hp680_ts_input.c
deleted file mode 100644
index c38d4e0f95c6a0..00000000000000
--- a/drivers/input/touchscreen/hp680_ts_input.c
+++ /dev/null
@@ -1,129 +0,0 @@
-#include <linux/input.h>
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/interrupt.h>
-#include <asm/io.h>
-#include <asm/delay.h>
-#include <asm/adc.h>
-#include <asm/hp6xx.h>
-
-#define MODNAME "hp680_ts_input"
-
-#define HP680_TS_ABS_X_MIN 40
-#define HP680_TS_ABS_X_MAX 950
-#define HP680_TS_ABS_Y_MIN 80
-#define HP680_TS_ABS_Y_MAX 910
-
-#define PHDR 0xa400012e
-#define SCPDR 0xa4000136
-
-static void do_softint(struct work_struct *work);
-
-static struct input_dev *hp680_ts_dev;
-static DECLARE_DELAYED_WORK(work, do_softint);
-
-static void do_softint(struct work_struct *work)
-{
- int absx = 0, absy = 0;
- u8 scpdr;
- int touched = 0;
-
- if (ctrl_inb(PHDR) & PHDR_TS_PEN_DOWN) {
- scpdr = ctrl_inb(SCPDR);
- scpdr |= SCPDR_TS_SCAN_ENABLE;
- scpdr &= ~SCPDR_TS_SCAN_Y;
- ctrl_outb(scpdr, SCPDR);
- udelay(30);
-
- absy = adc_single(ADC_CHANNEL_TS_Y);
-
- scpdr = ctrl_inb(SCPDR);
- scpdr |= SCPDR_TS_SCAN_Y;
- scpdr &= ~SCPDR_TS_SCAN_X;
- ctrl_outb(scpdr, SCPDR);
- udelay(30);
-
- absx = adc_single(ADC_CHANNEL_TS_X);
-
- scpdr = ctrl_inb(SCPDR);
- scpdr |= SCPDR_TS_SCAN_X;
- scpdr &= ~SCPDR_TS_SCAN_ENABLE;
- ctrl_outb(scpdr, SCPDR);
- udelay(100);
- touched = ctrl_inb(PHDR) & PHDR_TS_PEN_DOWN;
- }
-
- if (touched) {
- input_report_key(hp680_ts_dev, BTN_TOUCH, 1);
- input_report_abs(hp680_ts_dev, ABS_X, absx);
- input_report_abs(hp680_ts_dev, ABS_Y, absy);
- } else {
- input_report_key(hp680_ts_dev, BTN_TOUCH, 0);
- }
-
- input_sync(hp680_ts_dev);
- enable_irq(HP680_TS_IRQ);
-}
-
-static irqreturn_t hp680_ts_interrupt(int irq, void *dev)
-{
- disable_irq_nosync(irq);
- schedule_delayed_work(&work, HZ / 20);
-
- return IRQ_HANDLED;
-}
-
-static int __init hp680_ts_init(void)
-{
- int err;
-
- hp680_ts_dev = input_allocate_device();
- if (!hp680_ts_dev)
- return -ENOMEM;
-
- hp680_ts_dev->evbit[0] = BIT_MASK(EV_ABS) | BIT_MASK(EV_KEY);
- hp680_ts_dev->keybit[BIT_WORD(BTN_TOUCH)] = BIT_MASK(BTN_TOUCH);
-
- input_set_abs_params(hp680_ts_dev, ABS_X,
- HP680_TS_ABS_X_MIN, HP680_TS_ABS_X_MAX, 0, 0);
- input_set_abs_params(hp680_ts_dev, ABS_Y,
- HP680_TS_ABS_Y_MIN, HP680_TS_ABS_Y_MAX, 0, 0);
-
- hp680_ts_dev->name = "HP Jornada touchscreen";
- hp680_ts_dev->phys = "hp680_ts/input0";
-
- if (request_irq(HP680_TS_IRQ, hp680_ts_interrupt,
- IRQF_DISABLED, MODNAME, 0) < 0) {
- printk(KERN_ERR "hp680_touchscreen.c: Can't allocate irq %d\n",
- HP680_TS_IRQ);
- err = -EBUSY;
- goto fail1;
- }
-
- err = input_register_device(hp680_ts_dev);
- if (err)
- goto fail2;
-
- return 0;
-
- fail2: free_irq(HP680_TS_IRQ, NULL);
- cancel_delayed_work(&work);
- flush_scheduled_work();
- fail1: input_free_device(hp680_ts_dev);
- return err;
-}
-
-static void __exit hp680_ts_exit(void)
-{
- free_irq(HP680_TS_IRQ, NULL);
- cancel_delayed_work(&work);
- flush_scheduled_work();
- input_unregister_device(hp680_ts_dev);
-}
-
-module_init(hp680_ts_init);
-module_exit(hp680_ts_exit);
-
-MODULE_AUTHOR("Andriy Skulysh, askulysh@image.kiev.ua");
-MODULE_DESCRIPTION("HP Jornada 680 touchscreen driver");
-MODULE_LICENSE("GPL");