summaryrefslogtreecommitdiff
path: root/drivers/input/touchscreen
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/input/touchscreen')
-rw-r--r--drivers/input/touchscreen/Kconfig19
-rw-r--r--drivers/input/touchscreen/Makefile1
-rw-r--r--drivers/input/touchscreen/ads7846.c80
-rw-r--r--drivers/input/touchscreen/ucb1400_ts.c1
-rw-r--r--drivers/input/touchscreen/usbtouchscreen.c35
5 files changed, 134 insertions, 2 deletions
diff --git a/drivers/input/touchscreen/Kconfig b/drivers/input/touchscreen/Kconfig
index abf1e97966bd..faa6de79cb34 100644
--- a/drivers/input/touchscreen/Kconfig
+++ b/drivers/input/touchscreen/Kconfig
@@ -54,6 +54,19 @@ config TOUCHSCREEN_CORGI
To compile this driver as a module, choose M here: the
module will be called corgi_ts.
+config TOUCHSCREEN_FUJITSU
+ tristate "Fujitsu serial touchscreen"
+ select SERIO
+ help
+ Say Y here if you have the Fujitsu touchscreen (such as one
+ installed in Lifebook P series laptop) connected to your
+ system.
+
+ If unsure, say N.
+
+ To compile this driver as a module, choose M here: the
+ module will be called fujitsu-ts.
+
config TOUCHSCREEN_GUNZE
tristate "Gunze AHL-51S touchscreen"
select SERIO
@@ -189,6 +202,7 @@ config TOUCHSCREEN_USB_COMPOSITE
- some other eTurboTouch
- Gunze AHL61
- DMC TSC-10/25
+ - IRTOUCHSYSTEMS/UNITOP
Have a look at <http://linux.chapter7.ch/touchkit/> for
a usage description and the required user-space stuff.
@@ -231,4 +245,9 @@ config TOUCHSCREEN_USB_DMC_TSC10
bool "DMC TSC-10/25 device support" if EMBEDDED
depends on TOUCHSCREEN_USB_COMPOSITE
+config TOUCHSCREEN_USB_IRTOUCH
+ default y
+ bool "IRTOUCHSYSTEMS/UNITOP device support" if EMBEDDED
+ depends on TOUCHSCREEN_USB_COMPOSITE
+
endif
diff --git a/drivers/input/touchscreen/Makefile b/drivers/input/touchscreen/Makefile
index 2e86de08ded4..3f4780c2e2a6 100644
--- a/drivers/input/touchscreen/Makefile
+++ b/drivers/input/touchscreen/Makefile
@@ -9,6 +9,7 @@ obj-$(CONFIG_TOUCHSCREEN_BITSY) += h3600_ts_input.o
obj-$(CONFIG_TOUCHSCREEN_CORGI) += corgi_ts.o
obj-$(CONFIG_TOUCHSCREEN_GUNZE) += gunze.o
obj-$(CONFIG_TOUCHSCREEN_ELO) += elo.o
+obj-$(CONFIG_TOUCHSCREEN_FUJITSU) += fujitsu_ts.o
obj-$(CONFIG_TOUCHSCREEN_MTOUCH) += mtouch.o
obj-$(CONFIG_TOUCHSCREEN_MK712) += mk712.o
obj-$(CONFIG_TOUCHSCREEN_HP600) += hp680_ts_input.o
diff --git a/drivers/input/touchscreen/ads7846.c b/drivers/input/touchscreen/ads7846.c
index 1c9069cd3bae..96581d08774f 100644
--- a/drivers/input/touchscreen/ads7846.c
+++ b/drivers/input/touchscreen/ads7846.c
@@ -95,7 +95,7 @@ struct ads7846 {
u16 dummy; /* for the pwrdown read */
struct ts_event tc;
- struct spi_transfer xfer[10];
+ struct spi_transfer xfer[18];
struct spi_message msg[5];
struct spi_message *last_msg;
int msg_idx;
@@ -107,6 +107,8 @@ struct ads7846 {
u16 debounce_tol;
u16 debounce_rep;
+ u16 penirq_recheck_delay_usecs;
+
spinlock_t lock;
struct hrtimer timer;
unsigned pendown:1; /* P: lock */
@@ -553,6 +555,15 @@ static void ads7846_rx(void *ads)
return;
}
+ /* Maybe check the pendown state before reporting. This discards
+ * false readings when the pen is lifted.
+ */
+ if (ts->penirq_recheck_delay_usecs) {
+ udelay(ts->penirq_recheck_delay_usecs);
+ if (!ts->get_pendown_state())
+ Rt = 0;
+ }
+
/* NOTE: We can't rely on the pressure to determine the pen down
* state, even this controller has a pressure sensor. The pressure
* value can fluctuate for quite a while after lifting the pen and
@@ -896,6 +907,10 @@ static int __devinit ads7846_probe(struct spi_device *spi)
ts->filter = ads7846_no_filter;
ts->get_pendown_state = pdata->get_pendown_state;
+ if (pdata->penirq_recheck_delay_usecs)
+ ts->penirq_recheck_delay_usecs =
+ pdata->penirq_recheck_delay_usecs;
+
snprintf(ts->phys, sizeof(ts->phys), "%s/input0", spi->dev.bus_id);
input_dev->name = "ADS784x Touchscreen";
@@ -936,6 +951,24 @@ static int __devinit ads7846_probe(struct spi_device *spi)
x->len = 2;
spi_message_add_tail(x, m);
+ /* the first sample after switching drivers can be low quality;
+ * optionally discard it, using a second one after the signals
+ * have had enough time to stabilize.
+ */
+ if (pdata->settle_delay_usecs) {
+ x->delay_usecs = pdata->settle_delay_usecs;
+
+ x++;
+ x->tx_buf = &ts->read_y;
+ x->len = 1;
+ spi_message_add_tail(x, m);
+
+ x++;
+ x->rx_buf = &ts->tc.y;
+ x->len = 2;
+ spi_message_add_tail(x, m);
+ }
+
m->complete = ads7846_rx_val;
m->context = ts;
@@ -954,6 +987,21 @@ static int __devinit ads7846_probe(struct spi_device *spi)
x->len = 2;
spi_message_add_tail(x, m);
+ /* ... maybe discard first sample ... */
+ if (pdata->settle_delay_usecs) {
+ x->delay_usecs = pdata->settle_delay_usecs;
+
+ x++;
+ x->tx_buf = &ts->read_x;
+ x->len = 1;
+ spi_message_add_tail(x, m);
+
+ x++;
+ x->rx_buf = &ts->tc.x;
+ x->len = 2;
+ spi_message_add_tail(x, m);
+ }
+
m->complete = ads7846_rx_val;
m->context = ts;
@@ -973,6 +1021,21 @@ static int __devinit ads7846_probe(struct spi_device *spi)
x->len = 2;
spi_message_add_tail(x, m);
+ /* ... maybe discard first sample ... */
+ if (pdata->settle_delay_usecs) {
+ x->delay_usecs = pdata->settle_delay_usecs;
+
+ x++;
+ x->tx_buf = &ts->read_z1;
+ x->len = 1;
+ spi_message_add_tail(x, m);
+
+ x++;
+ x->rx_buf = &ts->tc.z1;
+ x->len = 2;
+ spi_message_add_tail(x, m);
+ }
+
m->complete = ads7846_rx_val;
m->context = ts;
@@ -990,6 +1053,21 @@ static int __devinit ads7846_probe(struct spi_device *spi)
x->len = 2;
spi_message_add_tail(x, m);
+ /* ... maybe discard first sample ... */
+ if (pdata->settle_delay_usecs) {
+ x->delay_usecs = pdata->settle_delay_usecs;
+
+ x++;
+ x->tx_buf = &ts->read_z2;
+ x->len = 1;
+ spi_message_add_tail(x, m);
+
+ x++;
+ x->rx_buf = &ts->tc.z2;
+ x->len = 2;
+ spi_message_add_tail(x, m);
+ }
+
m->complete = ads7846_rx_val;
m->context = ts;
}
diff --git a/drivers/input/touchscreen/ucb1400_ts.c b/drivers/input/touchscreen/ucb1400_ts.c
index f0cbcdb008ed..36f944019158 100644
--- a/drivers/input/touchscreen/ucb1400_ts.c
+++ b/drivers/input/touchscreen/ucb1400_ts.c
@@ -292,6 +292,7 @@ static int ucb1400_ts_thread(void *_ucb)
sched_setscheduler(tsk, SCHED_FIFO, &param);
+ set_freezable();
while (!kthread_should_stop()) {
unsigned int x, y, p;
long timeout;
diff --git a/drivers/input/touchscreen/usbtouchscreen.c b/drivers/input/touchscreen/usbtouchscreen.c
index e3f22852bd09..741f6c6f1e50 100644
--- a/drivers/input/touchscreen/usbtouchscreen.c
+++ b/drivers/input/touchscreen/usbtouchscreen.c
@@ -9,6 +9,7 @@
* - eTurboTouch
* - Gunze AHL61
* - DMC TSC-10/25
+ * - IRTOUCHSYSTEMS/UNITOP
*
* Copyright (C) 2004-2006 by Daniel Ritz <daniel.ritz@gmx.ch>
* Copyright (C) by Todd E. Johnson (mtouchusb.c)
@@ -110,6 +111,7 @@ enum {
DEVTYPE_ETURBO,
DEVTYPE_GUNZE,
DEVTYPE_DMC_TSC10,
+ DEVTYPE_IRTOUCH,
};
static struct usb_device_id usbtouch_devices[] = {
@@ -150,6 +152,11 @@ static struct usb_device_id usbtouch_devices[] = {
{USB_DEVICE(0x0afa, 0x03e8), .driver_info = DEVTYPE_DMC_TSC10},
#endif
+#ifdef CONFIG_TOUCHSCREEN_USB_IRTOUCH
+ {USB_DEVICE(0x595a, 0x0001), .driver_info = DEVTYPE_IRTOUCH},
+ {USB_DEVICE(0x6615, 0x0001), .driver_info = DEVTYPE_IRTOUCH},
+#endif
+
{}
};
@@ -416,6 +423,21 @@ static int dmc_tsc10_read_data(struct usbtouch_usb *dev, unsigned char *pkt)
/*****************************************************************************
+ * IRTOUCH Part
+ */
+#ifdef CONFIG_TOUCHSCREEN_USB_IRTOUCH
+static int irtouch_read_data(struct usbtouch_usb *dev, unsigned char *pkt)
+{
+ dev->x = (pkt[3] << 8) | pkt[2];
+ dev->y = (pkt[5] << 8) | pkt[4];
+ dev->touch = (pkt[1] & 0x03) ? 1 : 0;
+
+ return 1;
+}
+#endif
+
+
+/*****************************************************************************
* the different device descriptors
*/
static struct usbtouch_device_info usbtouch_dev_info[] = {
@@ -504,6 +526,17 @@ static struct usbtouch_device_info usbtouch_dev_info[] = {
.read_data = dmc_tsc10_read_data,
},
#endif
+
+#ifdef CONFIG_TOUCHSCREEN_USB_IRTOUCH
+ [DEVTYPE_IRTOUCH] = {
+ .min_xc = 0x0,
+ .max_xc = 0x0fff,
+ .min_yc = 0x0,
+ .max_yc = 0x0fff,
+ .rept_size = 8,
+ .read_data = irtouch_read_data,
+ },
+#endif
};
@@ -734,7 +767,7 @@ static int usbtouch_probe(struct usb_interface *intf,
le16_to_cpu(udev->descriptor.idProduct));
usb_make_path(udev, usbtouch->phys, sizeof(usbtouch->phys));
- strlcpy(usbtouch->phys, "/input0", sizeof(usbtouch->phys));
+ strlcat(usbtouch->phys, "/input0", sizeof(usbtouch->phys));
input_dev->name = usbtouch->name;
input_dev->phys = usbtouch->phys;
generated by cgit v1.2.3 (git 2.0.4) at 2024-06-20 04:29:25 +0000