diff options
Diffstat (limited to 'drivers/input/touchscreen/hp680_ts_input.c')
-rw-r--r-- | drivers/input/touchscreen/hp680_ts_input.c | 129 |
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"); |