7b19ada2ed
get rid of input BIT* duplicate defines use newly global defined macros for input layer. Also remove includes of input.h from non-input sources only for BIT macro definiton. Define the macro temporarily in local manner, all those local definitons will be removed further in this patchset (to not break bisecting). BIT macro will be globally defined (1<<x) Signed-off-by: Jiri Slaby <jirislaby@gmail.com> Cc: <dtor@mail.ru> Acked-by: Jiri Kosina <jkosina@suse.cz> Cc: <lenb@kernel.org> Acked-by: Marcel Holtmann <marcel@holtmann.org> Cc: <perex@suse.cz> Acked-by: Mauro Carvalho Chehab <mchehab@infradead.org> Cc: <vernux@us.ibm.com> Cc: <malattia@linux.it> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
130 lines
2.9 KiB
C
130 lines
2.9 KiB
C
#include <linux/input.h>
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#include <linux/module.h>
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#include <linux/init.h>
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#include <linux/interrupt.h>
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#include <asm/io.h>
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#include <asm/delay.h>
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#include <asm/adc.h>
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#include <asm/hp6xx.h>
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#define MODNAME "hp680_ts_input"
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#define HP680_TS_ABS_X_MIN 40
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#define HP680_TS_ABS_X_MAX 950
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#define HP680_TS_ABS_Y_MIN 80
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#define HP680_TS_ABS_Y_MAX 910
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#define PHDR 0xa400012e
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#define SCPDR 0xa4000136
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static void do_softint(struct work_struct *work);
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static struct input_dev *hp680_ts_dev;
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static DECLARE_DELAYED_WORK(work, do_softint);
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static void do_softint(struct work_struct *work)
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{
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int absx = 0, absy = 0;
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u8 scpdr;
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int touched = 0;
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if (ctrl_inb(PHDR) & PHDR_TS_PEN_DOWN) {
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scpdr = ctrl_inb(SCPDR);
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scpdr |= SCPDR_TS_SCAN_ENABLE;
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scpdr &= ~SCPDR_TS_SCAN_Y;
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ctrl_outb(scpdr, SCPDR);
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udelay(30);
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absy = adc_single(ADC_CHANNEL_TS_Y);
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scpdr = ctrl_inb(SCPDR);
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scpdr |= SCPDR_TS_SCAN_Y;
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scpdr &= ~SCPDR_TS_SCAN_X;
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ctrl_outb(scpdr, SCPDR);
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udelay(30);
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absx = adc_single(ADC_CHANNEL_TS_X);
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scpdr = ctrl_inb(SCPDR);
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scpdr |= SCPDR_TS_SCAN_X;
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scpdr &= ~SCPDR_TS_SCAN_ENABLE;
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ctrl_outb(scpdr, SCPDR);
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udelay(100);
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touched = ctrl_inb(PHDR) & PHDR_TS_PEN_DOWN;
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}
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if (touched) {
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input_report_key(hp680_ts_dev, BTN_TOUCH, 1);
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input_report_abs(hp680_ts_dev, ABS_X, absx);
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input_report_abs(hp680_ts_dev, ABS_Y, absy);
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} else {
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input_report_key(hp680_ts_dev, BTN_TOUCH, 0);
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}
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input_sync(hp680_ts_dev);
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enable_irq(HP680_TS_IRQ);
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}
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static irqreturn_t hp680_ts_interrupt(int irq, void *dev)
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{
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disable_irq_nosync(irq);
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schedule_delayed_work(&work, HZ / 20);
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return IRQ_HANDLED;
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}
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static int __init hp680_ts_init(void)
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{
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int err;
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hp680_ts_dev = input_allocate_device();
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if (!hp680_ts_dev)
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return -ENOMEM;
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hp680_ts_dev->evbit[0] = BIT_MASK(EV_ABS) | BIT_MASK(EV_KEY);
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hp680_ts_dev->keybit[BIT_WORD(BTN_TOUCH)] = BIT_MASK(BTN_TOUCH);
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input_set_abs_params(hp680_ts_dev, ABS_X,
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HP680_TS_ABS_X_MIN, HP680_TS_ABS_X_MAX, 0, 0);
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input_set_abs_params(hp680_ts_dev, ABS_Y,
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HP680_TS_ABS_Y_MIN, HP680_TS_ABS_Y_MAX, 0, 0);
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hp680_ts_dev->name = "HP Jornada touchscreen";
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hp680_ts_dev->phys = "hp680_ts/input0";
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if (request_irq(HP680_TS_IRQ, hp680_ts_interrupt,
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IRQF_DISABLED, MODNAME, 0) < 0) {
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printk(KERN_ERR "hp680_touchscreen.c: Can't allocate irq %d\n",
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HP680_TS_IRQ);
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err = -EBUSY;
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goto fail1;
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}
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err = input_register_device(hp680_ts_dev);
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if (err)
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goto fail2;
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return 0;
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fail2: free_irq(HP680_TS_IRQ, NULL);
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cancel_delayed_work(&work);
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flush_scheduled_work();
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fail1: input_free_device(hp680_ts_dev);
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return err;
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}
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static void __exit hp680_ts_exit(void)
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{
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free_irq(HP680_TS_IRQ, NULL);
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cancel_delayed_work(&work);
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flush_scheduled_work();
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input_unregister_device(hp680_ts_dev);
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}
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module_init(hp680_ts_init);
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module_exit(hp680_ts_exit);
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MODULE_AUTHOR("Andriy Skulysh, askulysh@image.kiev.ua");
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MODULE_DESCRIPTION("HP Jornada 680 touchscreen driver");
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MODULE_LICENSE("GPL");
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