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path: root/drivers/input/touchscreen
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Diffstat (limited to 'drivers/input/touchscreen')
-rw-r--r--drivers/input/touchscreen/ad7877.c4
-rw-r--r--drivers/input/touchscreen/ad7879.c3
-rw-r--r--drivers/input/touchscreen/ads7846.c12
-rw-r--r--drivers/input/touchscreen/da9034-ts.c29
-rw-r--r--drivers/input/touchscreen/mainstone-wm97xx.c7
-rw-r--r--drivers/input/touchscreen/wm97xx-core.c3
6 files changed, 36 insertions, 22 deletions
diff --git a/drivers/input/touchscreen/ad7877.c b/drivers/input/touchscreen/ad7877.c
index e4728a28f49..ecaeb7e8e75 100644
--- a/drivers/input/touchscreen/ad7877.c
+++ b/drivers/input/touchscreen/ad7877.c
@@ -736,8 +736,8 @@ static int __devinit ad7877_probe(struct spi_device *spi)
/* Request AD7877 /DAV GPIO interrupt */
- err = request_irq(spi->irq, ad7877_irq, IRQF_TRIGGER_FALLING |
- IRQF_SAMPLE_RANDOM, spi->dev.driver->name, ts);
+ err = request_irq(spi->irq, ad7877_irq, IRQF_TRIGGER_FALLING,
+ spi->dev.driver->name, ts);
if (err) {
dev_dbg(&spi->dev, "irq %d busy?\n", spi->irq);
goto err_free_mem;
diff --git a/drivers/input/touchscreen/ad7879.c b/drivers/input/touchscreen/ad7879.c
index ea4c61d6868..5d8a7039880 100644
--- a/drivers/input/touchscreen/ad7879.c
+++ b/drivers/input/touchscreen/ad7879.c
@@ -448,8 +448,7 @@ static int __devinit ad7879_construct(bus_device *bus, struct ad7879 *ts)
ad7879_setup(ts);
err = request_irq(bus->irq, ad7879_irq,
- IRQF_TRIGGER_FALLING | IRQF_SAMPLE_RANDOM,
- bus->dev.driver->name, ts);
+ IRQF_TRIGGER_FALLING, bus->dev.driver->name, ts);
if (err) {
dev_err(&bus->dev, "irq %d busy?\n", bus->irq);
diff --git a/drivers/input/touchscreen/ads7846.c b/drivers/input/touchscreen/ads7846.c
index 056ac77e2cf..2b01e56568f 100644
--- a/drivers/input/touchscreen/ads7846.c
+++ b/drivers/input/touchscreen/ads7846.c
@@ -127,6 +127,8 @@ struct ads7846 {
void (*filter_cleanup)(void *data);
int (*get_pendown_state)(void);
int gpio_pendown;
+
+ void (*wait_for_sync)(void);
};
/* leave chip selected when we're done, for quicker re-select? */
@@ -511,6 +513,10 @@ static int get_pendown_state(struct ads7846 *ts)
return !gpio_get_value(ts->gpio_pendown);
}
+static void null_wait_for_sync(void)
+{
+}
+
/*
* PENIRQ only kicks the timer. The timer only reissues the SPI transfer,
* to retrieve touchscreen status.
@@ -686,6 +692,7 @@ static void ads7846_rx_val(void *ads)
default:
BUG();
}
+ ts->wait_for_sync();
status = spi_async(ts->spi, m);
if (status)
dev_err(&ts->spi->dev, "spi_async --> %d\n",
@@ -723,6 +730,7 @@ static enum hrtimer_restart ads7846_timer(struct hrtimer *handle)
} else {
/* pen is still down, continue with the measurement */
ts->msg_idx = 0;
+ ts->wait_for_sync();
status = spi_async(ts->spi, &ts->msg[0]);
if (status)
dev_err(&ts->spi->dev, "spi_async --> %d\n", status);
@@ -746,7 +754,7 @@ static irqreturn_t ads7846_irq(int irq, void *handle)
* that here. (The "generic irq" framework may help...)
*/
ts->irq_disabled = 1;
- disable_irq(ts->spi->irq);
+ disable_irq_nosync(ts->spi->irq);
ts->pending = 1;
hrtimer_start(&ts->timer, ktime_set(0, TS_POLL_DELAY),
HRTIMER_MODE_REL);
@@ -947,6 +955,8 @@ static int __devinit ads7846_probe(struct spi_device *spi)
ts->penirq_recheck_delay_usecs =
pdata->penirq_recheck_delay_usecs;
+ ts->wait_for_sync = pdata->wait_for_sync ? : null_wait_for_sync;
+
snprintf(ts->phys, sizeof(ts->phys), "%s/input0", dev_name(&spi->dev));
input_dev->name = "ADS784x Touchscreen";
diff --git a/drivers/input/touchscreen/da9034-ts.c b/drivers/input/touchscreen/da9034-ts.c
index fa67d782c3c..3ffd4c4b170 100644
--- a/drivers/input/touchscreen/da9034-ts.c
+++ b/drivers/input/touchscreen/da9034-ts.c
@@ -3,6 +3,7 @@
*
* Copyright (C) 2006-2008 Marvell International Ltd.
* Fengwei Yin <fengwei.yin@marvell.com>
+ * Bin Yang <bin.yang@marvell.com>
* Eric Miao <eric.miao@marvell.com>
*
* This program is free software; you can redistribute it and/or modify
@@ -175,6 +176,16 @@ static void da9034_event_handler(struct da9034_touch *touch, int event)
goto err_reset;
touch->state = STATE_STOP;
+
+ /* FIXME: PEN_{UP/DOWN} events are expected to be
+ * available by stopping TSI, but this is found not
+ * always true, delay and simulate such an event
+ * here is more reliable
+ */
+ mdelay(1);
+ da9034_event_handler(touch,
+ is_pen_down(touch) ? EVENT_PEN_DOWN :
+ EVENT_PEN_UP);
break;
case STATE_STOP:
@@ -189,8 +200,6 @@ static void da9034_event_handler(struct da9034_touch *touch, int event)
report_pen_up(touch);
touch->state = STATE_IDLE;
}
-
- input_sync(touch->input_dev);
break;
case STATE_WAIT:
@@ -200,8 +209,10 @@ static void da9034_event_handler(struct da9034_touch *touch, int event)
if (is_pen_down(touch)) {
start_tsi(touch);
touch->state = STATE_BUSY;
- } else
+ } else {
+ report_pen_up(touch);
touch->state = STATE_IDLE;
+ }
break;
}
return;
@@ -226,16 +237,12 @@ static int da9034_touch_notifier(struct notifier_block *nb,
struct da9034_touch *touch =
container_of(nb, struct da9034_touch, notifier);
- if (event & DA9034_EVENT_PEN_DOWN) {
- if (is_pen_down(touch))
- da9034_event_handler(touch, EVENT_PEN_DOWN);
- else
- da9034_event_handler(touch, EVENT_PEN_UP);
- }
-
if (event & DA9034_EVENT_TSI_READY)
da9034_event_handler(touch, EVENT_TSI_READY);
+ if ((event & DA9034_EVENT_PEN_DOWN) && touch->state == STATE_IDLE)
+ da9034_event_handler(touch, EVENT_PEN_DOWN);
+
return 0;
}
@@ -385,6 +392,6 @@ static void __exit da9034_touch_exit(void)
module_exit(da9034_touch_exit);
MODULE_DESCRIPTION("Touchscreen driver for Dialog Semiconductor DA9034");
-MODULE_AUTHOR("Eric Miao <eric.miao@marvell.com>");
+MODULE_AUTHOR("Eric Miao <eric.miao@marvell.com>, Bin Yang <bin.yang@marvell.com>");
MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:da9034-touch");
diff --git a/drivers/input/touchscreen/mainstone-wm97xx.c b/drivers/input/touchscreen/mainstone-wm97xx.c
index dfa6a84ab50..4cc047a5116 100644
--- a/drivers/input/touchscreen/mainstone-wm97xx.c
+++ b/drivers/input/touchscreen/mainstone-wm97xx.c
@@ -111,13 +111,12 @@ static void wm97xx_acc_pen_up(struct wm97xx *wm)
#else
static void wm97xx_acc_pen_up(struct wm97xx *wm)
{
- int count = 16;
+ unsigned int count;
+
schedule_timeout_uninterruptible(1);
- while (count < 16) {
+ for (count = 0; count < 16; count++)
MODR;
- count--;
- }
}
#endif
diff --git a/drivers/input/touchscreen/wm97xx-core.c b/drivers/input/touchscreen/wm97xx-core.c
index cec480bffe3..69af8385ab1 100644
--- a/drivers/input/touchscreen/wm97xx-core.c
+++ b/drivers/input/touchscreen/wm97xx-core.c
@@ -370,8 +370,7 @@ static int wm97xx_init_pen_irq(struct wm97xx *wm)
* provided. */
BUG_ON(!wm->mach_ops->irq_enable);
- if (request_irq(wm->pen_irq, wm97xx_pen_interrupt,
- IRQF_SHARED | IRQF_SAMPLE_RANDOM,
+ if (request_irq(wm->pen_irq, wm97xx_pen_interrupt, IRQF_SHARED,
"wm97xx-pen", wm)) {
dev_err(wm->dev,
"Failed to register pen down interrupt, polling");
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-14 16:07:04 +0000