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-rw-r--r--drivers/input/touchscreen/88pm860x-ts.c13
-rw-r--r--drivers/input/touchscreen/Kconfig41
-rw-r--r--drivers/input/touchscreen/Makefile3
-rw-r--r--drivers/input/touchscreen/ad7877.c17
-rw-r--r--drivers/input/touchscreen/ad7879-i2c.c31
-rw-r--r--drivers/input/touchscreen/ad7879-spi.c27
-rw-r--r--drivers/input/touchscreen/ad7879.c23
-rw-r--r--drivers/input/touchscreen/ad7879.h4
-rw-r--r--drivers/input/touchscreen/ads7846.c9
-rw-r--r--drivers/input/touchscreen/atmel_tsadcc.c15
-rw-r--r--drivers/input/touchscreen/auo-pixcir-ts.c652
-rw-r--r--drivers/input/touchscreen/da9034-ts.c13
-rw-r--r--drivers/input/touchscreen/eeti_ts.c4
-rw-r--r--drivers/input/touchscreen/egalax_ts.c303
-rw-r--r--drivers/input/touchscreen/htcpen.c11
-rw-r--r--drivers/input/touchscreen/intel-mid-touch.c13
-rw-r--r--drivers/input/touchscreen/jornada720_ts.c14
-rw-r--r--drivers/input/touchscreen/lpc32xx_ts.c13
-rw-r--r--drivers/input/touchscreen/mainstone-wm97xx.c14
-rw-r--r--drivers/input/touchscreen/migor_ts.c117
-rw-r--r--drivers/input/touchscreen/pcap_ts.c14
-rw-r--r--drivers/input/touchscreen/pixcir_i2c_ts.c239
-rw-r--r--drivers/input/touchscreen/s3c2410_ts.c14
-rw-r--r--drivers/input/touchscreen/stmpe-ts.c15
-rw-r--r--drivers/input/touchscreen/tnetv107x-ts.c14
-rw-r--r--drivers/input/touchscreen/tps6507x-ts.c13
-rw-r--r--drivers/input/touchscreen/ucb1400_ts.c289
-rw-r--r--drivers/input/touchscreen/usbtouchscreen.c40
-rw-r--r--drivers/input/touchscreen/w90p910_ts.c14
-rw-r--r--drivers/input/touchscreen/wm831x-ts.c13
-rw-r--r--drivers/input/touchscreen/zylonite-wm97xx.c14
31 files changed, 1513 insertions, 503 deletions
diff --git a/drivers/input/touchscreen/88pm860x-ts.c b/drivers/input/touchscreen/88pm860x-ts.c
index b3aebc2166ba..05f30b73c3c3 100644
--- a/drivers/input/touchscreen/88pm860x-ts.c
+++ b/drivers/input/touchscreen/88pm860x-ts.c
@@ -217,18 +217,7 @@ static struct platform_driver pm860x_touch_driver = {
.probe = pm860x_touch_probe,
.remove = __devexit_p(pm860x_touch_remove),
};
-
-static int __init pm860x_touch_init(void)
-{
- return platform_driver_register(&pm860x_touch_driver);
-}
-module_init(pm860x_touch_init);
-
-static void __exit pm860x_touch_exit(void)
-{
- platform_driver_unregister(&pm860x_touch_driver);
-}
-module_exit(pm860x_touch_exit);
+module_platform_driver(pm860x_touch_driver);
MODULE_DESCRIPTION("Touchscreen driver for Marvell Semiconductor 88PM860x");
MODULE_AUTHOR("Haojian Zhuang <haojian.zhuang@marvell.com>");
diff --git a/drivers/input/touchscreen/Kconfig b/drivers/input/touchscreen/Kconfig
index 3488ffe1fa0a..4af2a18eb3ba 100644
--- a/drivers/input/touchscreen/Kconfig
+++ b/drivers/input/touchscreen/Kconfig
@@ -98,6 +98,19 @@ config TOUCHSCREEN_ATMEL_MXT
To compile this driver as a module, choose M here: the
module will be called atmel_mxt_ts.
+config TOUCHSCREEN_AUO_PIXCIR
+ tristate "AUO in-cell touchscreen using Pixcir ICs"
+ depends on I2C
+ depends on GPIOLIB
+ help
+ Say Y here if you have a AUO display with in-cell touchscreen
+ using Pixcir ICs.
+
+ If unsure, say N.
+
+ To compile this driver as a module, choose M here: the
+ module will be called auo-pixcir-ts.
+
config TOUCHSCREEN_BITSY
tristate "Compaq iPAQ H3600 (Bitsy) touchscreen"
depends on SA1100_BITSY
@@ -177,6 +190,16 @@ config TOUCHSCREEN_EETI
To compile this driver as a module, choose M here: the
module will be called eeti_ts.
+config TOUCHSCREEN_EGALAX
+ tristate "EETI eGalax multi-touch panel support"
+ depends on I2C
+ help
+ Say Y here to enable support for I2C connected EETI
+ eGalax multi-touch panels.
+
+ To compile this driver as a module, choose M here: the
+ module will be called egalax_ts.
+
config TOUCHSCREEN_FUJITSU
tristate "Fujitsu serial touchscreen"
select SERIO
@@ -435,6 +458,18 @@ config TOUCHSCREEN_UCB1400
To compile this driver as a module, choose M here: the
module will be called ucb1400_ts.
+config TOUCHSCREEN_PIXCIR
+ tristate "PIXCIR I2C touchscreens"
+ depends on I2C
+ help
+ Say Y here if you have a pixcir i2c touchscreen
+ controller.
+
+ If unsure, say N.
+
+ To compile this driver as a module, choose M here: the
+ module will be called pixcir_i2c_ts.
+
config TOUCHSCREEN_WM831X
tristate "Support for WM831x touchscreen controllers"
depends on MFD_WM831X
@@ -541,6 +576,7 @@ config TOUCHSCREEN_USB_COMPOSITE
- GoTop Super_Q2/GogoPen/PenPower tablets
- JASTEC USB Touch Controller/DigiTech DTR-02U
- Zytronic controllers
+ - Elo TouchSystems 2700 IntelliTouch
Have a look at <http://linux.chapter7.ch/touchkit/> for
a usage description and the required user-space stuff.
@@ -620,6 +656,11 @@ config TOUCHSCREEN_USB_JASTEC
bool "JASTEC/DigiTech DTR-02U USB touch controller device support" if EXPERT
depends on TOUCHSCREEN_USB_COMPOSITE
+config TOUCHSCREEN_USB_ELO
+ default y
+ bool "Elo TouchSystems 2700 IntelliTouch controller device support" if EXPERT
+ depends on TOUCHSCREEN_USB_COMPOSITE
+
config TOUCHSCREEN_USB_E2I
default y
bool "e2i Touchscreen controller (e.g. from Mimo 740)"
diff --git a/drivers/input/touchscreen/Makefile b/drivers/input/touchscreen/Makefile
index f957676035a4..496091e88460 100644
--- a/drivers/input/touchscreen/Makefile
+++ b/drivers/input/touchscreen/Makefile
@@ -14,6 +14,7 @@ obj-$(CONFIG_TOUCHSCREEN_AD7879_SPI) += ad7879-spi.o
obj-$(CONFIG_TOUCHSCREEN_ADS7846) += ads7846.o
obj-$(CONFIG_TOUCHSCREEN_ATMEL_MXT) += atmel_mxt_ts.o
obj-$(CONFIG_TOUCHSCREEN_ATMEL_TSADCC) += atmel_tsadcc.o
+obj-$(CONFIG_TOUCHSCREEN_AUO_PIXCIR) += auo-pixcir-ts.o
obj-$(CONFIG_TOUCHSCREEN_BITSY) += h3600_ts_input.o
obj-$(CONFIG_TOUCHSCREEN_BU21013) += bu21013_ts.o
obj-$(CONFIG_TOUCHSCREEN_CY8CTMG110) += cy8ctmg110_ts.o
@@ -23,6 +24,7 @@ obj-$(CONFIG_TOUCHSCREEN_HAMPSHIRE) += hampshire.o
obj-$(CONFIG_TOUCHSCREEN_GUNZE) += gunze.o
obj-$(CONFIG_TOUCHSCREEN_EETI) += eeti_ts.o
obj-$(CONFIG_TOUCHSCREEN_ELO) += elo.o
+obj-$(CONFIG_TOUCHSCREEN_EGALAX) += egalax_ts.o
obj-$(CONFIG_TOUCHSCREEN_FUJITSU) += fujitsu_ts.o
obj-$(CONFIG_TOUCHSCREEN_INEXIO) += inexio.o
obj-$(CONFIG_TOUCHSCREEN_INTEL_MID) += intel-mid-touch.o
@@ -39,6 +41,7 @@ obj-$(CONFIG_TOUCHSCREEN_HTCPEN) += htcpen.o
obj-$(CONFIG_TOUCHSCREEN_USB_COMPOSITE) += usbtouchscreen.o
obj-$(CONFIG_TOUCHSCREEN_PCAP) += pcap_ts.o
obj-$(CONFIG_TOUCHSCREEN_PENMOUNT) += penmount.o
+obj-$(CONFIG_TOUCHSCREEN_PIXCIR) += pixcir_i2c_ts.o
obj-$(CONFIG_TOUCHSCREEN_S3C2410) += s3c2410_ts.o
obj-$(CONFIG_TOUCHSCREEN_ST1232) += st1232.o
obj-$(CONFIG_TOUCHSCREEN_STMPE) += stmpe-ts.o
diff --git a/drivers/input/touchscreen/ad7877.c b/drivers/input/touchscreen/ad7877.c
index baa43df6502d..49a36df0b752 100644
--- a/drivers/input/touchscreen/ad7877.c
+++ b/drivers/input/touchscreen/ad7877.c
@@ -488,10 +488,10 @@ static ssize_t ad7877_disable_store(struct device *dev,
const char *buf, size_t count)
{
struct ad7877 *ts = dev_get_drvdata(dev);
- unsigned long val;
+ unsigned int val;
int error;
- error = strict_strtoul(buf, 10, &val);
+ error = kstrtouint(buf, 10, &val);
if (error)
return error;
@@ -518,10 +518,10 @@ static ssize_t ad7877_dac_store(struct device *dev,
const char *buf, size_t count)
{
struct ad7877 *ts = dev_get_drvdata(dev);
- unsigned long val;
+ unsigned int val;
int error;
- error = strict_strtoul(buf, 10, &val);
+ error = kstrtouint(buf, 10, &val);
if (error)
return error;
@@ -548,10 +548,10 @@ static ssize_t ad7877_gpio3_store(struct device *dev,
const char *buf, size_t count)
{
struct ad7877 *ts = dev_get_drvdata(dev);
- unsigned long val;
+ unsigned int val;
int error;
- error = strict_strtoul(buf, 10, &val);
+ error = kstrtouint(buf, 10, &val);
if (error)
return error;
@@ -579,10 +579,10 @@ static ssize_t ad7877_gpio4_store(struct device *dev,
const char *buf, size_t count)
{
struct ad7877 *ts = dev_get_drvdata(dev);
- unsigned long val;
+ unsigned int val;
int error;
- error = strict_strtoul(buf, 10, &val);
+ error = kstrtouint(buf, 10, &val);
if (error)
return error;
@@ -853,7 +853,6 @@ static SIMPLE_DEV_PM_OPS(ad7877_pm, ad7877_suspend, ad7877_resume);
static struct spi_driver ad7877_driver = {
.driver = {
.name = "ad7877",
- .bus = &spi_bus_type,
.owner = THIS_MODULE,
.pm = &ad7877_pm,
},
diff --git a/drivers/input/touchscreen/ad7879-i2c.c b/drivers/input/touchscreen/ad7879-i2c.c
index c789b974c795..0dac6712f42b 100644
--- a/drivers/input/touchscreen/ad7879-i2c.c
+++ b/drivers/input/touchscreen/ad7879-i2c.c
@@ -16,30 +16,6 @@
#define AD7879_DEVID 0x79 /* AD7879-1/AD7889-1 */
-#ifdef CONFIG_PM_SLEEP
-static int ad7879_i2c_suspend(struct device *dev)
-{
- struct i2c_client *client = to_i2c_client(dev);
- struct ad7879 *ts = i2c_get_clientdata(client);
-
- ad7879_suspend(ts);
-
- return 0;
-}
-
-static int ad7879_i2c_resume(struct device *dev)
-{
- struct i2c_client *client = to_i2c_client(dev);
- struct ad7879 *ts = i2c_get_clientdata(client);
-
- ad7879_resume(ts);
-
- return 0;
-}
-#endif
-
-static SIMPLE_DEV_PM_OPS(ad7879_i2c_pm, ad7879_i2c_suspend, ad7879_i2c_resume);
-
/* All registers are word-sized.
* AD7879 uses a high-byte first convention.
*/
@@ -47,7 +23,7 @@ static int ad7879_i2c_read(struct device *dev, u8 reg)
{
struct i2c_client *client = to_i2c_client(dev);
- return swab16(i2c_smbus_read_word_data(client, reg));
+ return i2c_smbus_read_word_swapped(client, reg);
}
static int ad7879_i2c_multi_read(struct device *dev,
@@ -68,7 +44,7 @@ static int ad7879_i2c_write(struct device *dev, u8 reg, u16 val)
{
struct i2c_client *client = to_i2c_client(dev);
- return i2c_smbus_write_word_data(client, reg, swab16(val));
+ return i2c_smbus_write_word_swapped(client, reg, val);
}
static const struct ad7879_bus_ops ad7879_i2c_bus_ops = {
@@ -119,7 +95,7 @@ static struct i2c_driver ad7879_i2c_driver = {
.driver = {
.name = "ad7879",
.owner = THIS_MODULE,
- .pm = &ad7879_i2c_pm,
+ .pm = &ad7879_pm_ops,
},
.probe = ad7879_i2c_probe,
.remove = __devexit_p(ad7879_i2c_remove),
@@ -141,4 +117,3 @@ module_exit(ad7879_i2c_exit);
MODULE_AUTHOR("Michael Hennerich <hennerich@blackfin.uclinux.org>");
MODULE_DESCRIPTION("AD7879(-1) touchscreen I2C bus driver");
MODULE_LICENSE("GPL");
-MODULE_ALIAS("i2c:ad7879");
diff --git a/drivers/input/touchscreen/ad7879-spi.c b/drivers/input/touchscreen/ad7879-spi.c
index b1643c8fa7c9..9b2e1c2b1971 100644
--- a/drivers/input/touchscreen/ad7879-spi.c
+++ b/drivers/input/touchscreen/ad7879-spi.c
@@ -22,30 +22,6 @@
#define AD7879_WRITECMD(reg) (AD7879_CMD(reg))
#define AD7879_READCMD(reg) (AD7879_CMD(reg) | AD7879_CMD_READ)
-#ifdef CONFIG_PM_SLEEP
-static int ad7879_spi_suspend(struct device *dev)
-{
- struct spi_device *spi = to_spi_device(dev);
- struct ad7879 *ts = spi_get_drvdata(spi);
-
- ad7879_suspend(ts);
-
- return 0;
-}
-
-static int ad7879_spi_resume(struct device *dev)
-{
- struct spi_device *spi = to_spi_device(dev);
- struct ad7879 *ts = spi_get_drvdata(spi);
-
- ad7879_resume(ts);
-
- return 0;
-}
-#endif
-
-static SIMPLE_DEV_PM_OPS(ad7879_spi_pm, ad7879_spi_suspend, ad7879_spi_resume);
-
/*
* ad7879_read/write are only used for initial setup and for sysfs controls.
* The main traffic is done in ad7879_collect().
@@ -174,9 +150,8 @@ static int __devexit ad7879_spi_remove(struct spi_device *spi)
static struct spi_driver ad7879_spi_driver = {
.driver = {
.name = "ad7879",
- .bus = &spi_bus_type,
.owner = THIS_MODULE,
- .pm = &ad7879_spi_pm,
+ .pm = &ad7879_pm_ops,
},
.probe = ad7879_spi_probe,
.remove = __devexit_p(ad7879_spi_remove),
diff --git a/drivers/input/touchscreen/ad7879.c b/drivers/input/touchscreen/ad7879.c
index 3b2e9ed2aeec..e2482b40da51 100644
--- a/drivers/input/touchscreen/ad7879.c
+++ b/drivers/input/touchscreen/ad7879.c
@@ -281,8 +281,11 @@ static void ad7879_close(struct input_dev* input)
__ad7879_disable(ts);
}
-void ad7879_suspend(struct ad7879 *ts)
+#ifdef CONFIG_PM_SLEEP
+static int ad7879_suspend(struct device *dev)
{
+ struct ad7879 *ts = dev_get_drvdata(dev);
+
mutex_lock(&ts->input->mutex);
if (!ts->suspended && !ts->disabled && ts->input->users)
@@ -291,11 +294,14 @@ void ad7879_suspend(struct ad7879 *ts)
ts->suspended = true;
mutex_unlock(&ts->input->mutex);
+
+ return 0;
}
-EXPORT_SYMBOL(ad7879_suspend);
-void ad7879_resume(struct ad7879 *ts)
+static int ad7879_resume(struct device *dev)
{
+ struct ad7879 *ts = dev_get_drvdata(dev);
+
mutex_lock(&ts->input->mutex);
if (ts->suspended && !ts->disabled && ts->input->users)
@@ -304,8 +310,13 @@ void ad7879_resume(struct ad7879 *ts)
ts->suspended = false;
mutex_unlock(&ts->input->mutex);
+
+ return 0;
}
-EXPORT_SYMBOL(ad7879_resume);
+#endif
+
+SIMPLE_DEV_PM_OPS(ad7879_pm_ops, ad7879_suspend, ad7879_resume);
+EXPORT_SYMBOL(ad7879_pm_ops);
static void ad7879_toggle(struct ad7879 *ts, bool disable)
{
@@ -340,10 +351,10 @@ static ssize_t ad7879_disable_store(struct device *dev,
const char *buf, size_t count)
{
struct ad7879 *ts = dev_get_drvdata(dev);
- unsigned long val;
+ unsigned int val;
int error;
- error = strict_strtoul(buf, 10, &val);
+ error = kstrtouint(buf, 10, &val);
if (error)
return error;
diff --git a/drivers/input/touchscreen/ad7879.h b/drivers/input/touchscreen/ad7879.h
index 6b45a27236c7..6fd13c48d373 100644
--- a/drivers/input/touchscreen/ad7879.h
+++ b/drivers/input/touchscreen/ad7879.h
@@ -21,8 +21,8 @@ struct ad7879_bus_ops {
int (*write)(struct device *dev, u8 reg, u16 val);
};
-void ad7879_suspend(struct ad7879 *);
-void ad7879_resume(struct ad7879 *);
+extern const struct dev_pm_ops ad7879_pm_ops;
+
struct ad7879 *ad7879_probe(struct device *dev, u8 devid, unsigned irq,
const struct ad7879_bus_ops *bops);
void ad7879_remove(struct ad7879 *);
diff --git a/drivers/input/touchscreen/ads7846.c b/drivers/input/touchscreen/ads7846.c
index de31ec6fe9e4..23fd90185659 100644
--- a/drivers/input/touchscreen/ads7846.c
+++ b/drivers/input/touchscreen/ads7846.c
@@ -602,10 +602,12 @@ static ssize_t ads7846_disable_store(struct device *dev,
const char *buf, size_t count)
{
struct ads7846 *ts = dev_get_drvdata(dev);
- unsigned long i;
+ unsigned int i;
+ int err;
- if (strict_strtoul(buf, 10, &i))
- return -EINVAL;
+ err = kstrtouint(buf, 10, &i);
+ if (err)
+ return err;
if (i)
ads7846_disable(ts);
@@ -1424,7 +1426,6 @@ static int __devexit ads7846_remove(struct spi_device *spi)
static struct spi_driver ads7846_driver = {
.driver = {
.name = "ads7846",
- .bus = &spi_bus_type,
.owner = THIS_MODULE,
.pm = &ads7846_pm,
},
diff --git a/drivers/input/touchscreen/atmel_tsadcc.c b/drivers/input/touchscreen/atmel_tsadcc.c
index 122a87883659..201b2d2ec1b3 100644
--- a/drivers/input/touchscreen/atmel_tsadcc.c
+++ b/drivers/input/touchscreen/atmel_tsadcc.c
@@ -351,20 +351,7 @@ static struct platform_driver atmel_tsadcc_driver = {
.name = "atmel_tsadcc",
},
};
-
-static int __init atmel_tsadcc_init(void)
-{
- return platform_driver_register(&atmel_tsadcc_driver);
-}
-
-static void __exit atmel_tsadcc_exit(void)
-{
- platform_driver_unregister(&atmel_tsadcc_driver);
-}
-
-module_init(atmel_tsadcc_init);
-module_exit(atmel_tsadcc_exit);
-
+module_platform_driver(atmel_tsadcc_driver);
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("Atmel TouchScreen Driver");
diff --git a/drivers/input/touchscreen/auo-pixcir-ts.c b/drivers/input/touchscreen/auo-pixcir-ts.c
new file mode 100644
index 000000000000..94fb9fbb08a9
--- /dev/null
+++ b/drivers/input/touchscreen/auo-pixcir-ts.c
@@ -0,0 +1,652 @@
+/*
+ * Driver for AUO in-cell touchscreens
+ *
+ * Copyright (c) 2011 Heiko Stuebner <heiko@sntech.de>
+ *
+ * loosely based on auo_touch.c from Dell Streak vendor-kernel
+ *
+ * Copyright (c) 2008 QUALCOMM Incorporated.
+ * Copyright (c) 2008 QUALCOMM USA, INC.
+ *
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/interrupt.h>
+#include <linux/slab.h>
+#include <linux/input.h>
+#include <linux/jiffies.h>
+#include <linux/i2c.h>
+#include <linux/mutex.h>
+#include <linux/delay.h>
+#include <linux/gpio.h>
+#include <linux/input/auo-pixcir-ts.h>
+
+/*
+ * Coordinate calculation:
+ * X1 = X1_LSB + X1_MSB*256
+ * Y1 = Y1_LSB + Y1_MSB*256
+ * X2 = X2_LSB + X2_MSB*256
+ * Y2 = Y2_LSB + Y2_MSB*256
+ */
+#define AUO_PIXCIR_REG_X1_LSB 0x00
+#define AUO_PIXCIR_REG_X1_MSB 0x01
+#define AUO_PIXCIR_REG_Y1_LSB 0x02
+#define AUO_PIXCIR_REG_Y1_MSB 0x03
+#define AUO_PIXCIR_REG_X2_LSB 0x04
+#define AUO_PIXCIR_REG_X2_MSB 0x05
+#define AUO_PIXCIR_REG_Y2_LSB 0x06
+#define AUO_PIXCIR_REG_Y2_MSB 0x07
+
+#define AUO_PIXCIR_REG_STRENGTH 0x0d
+#define AUO_PIXCIR_REG_STRENGTH_X1_LSB 0x0e
+#define AUO_PIXCIR_REG_STRENGTH_X1_MSB 0x0f
+
+#define AUO_PIXCIR_REG_RAW_DATA_X 0x2b
+#define AUO_PIXCIR_REG_RAW_DATA_Y 0x4f
+
+#define AUO_PIXCIR_REG_X_SENSITIVITY 0x6f
+#define AUO_PIXCIR_REG_Y_SENSITIVITY 0x70
+#define AUO_PIXCIR_REG_INT_SETTING 0x71
+#define AUO_PIXCIR_REG_INT_WIDTH 0x72
+#define AUO_PIXCIR_REG_POWER_MODE 0x73
+
+#define AUO_PIXCIR_REG_VERSION 0x77
+#define AUO_PIXCIR_REG_CALIBRATE 0x78
+
+#define AUO_PIXCIR_REG_TOUCHAREA_X1 0x1e
+#define AUO_PIXCIR_REG_TOUCHAREA_Y1 0x1f
+#define AUO_PIXCIR_REG_TOUCHAREA_X2 0x20
+#define AUO_PIXCIR_REG_TOUCHAREA_Y2 0x21
+
+#define AUO_PIXCIR_REG_EEPROM_CALIB_X 0x42
+#define AUO_PIXCIR_REG_EEPROM_CALIB_Y 0xad
+
+#define AUO_PIXCIR_INT_TPNUM_MASK 0xe0
+#define AUO_PIXCIR_INT_TPNUM_SHIFT 5
+#define AUO_PIXCIR_INT_RELEASE (1 << 4)
+#define AUO_PIXCIR_INT_ENABLE (1 << 3)
+#define AUO_PIXCIR_INT_POL_HIGH (1 << 2)
+#define AUO_PIXCIR_INT_MODE_MASK 0x03
+
+/*
+ * Power modes:
+ * active: scan speed 60Hz
+ * sleep: scan speed 10Hz can be auto-activated, wakeup on 1st touch
+ * deep sleep: scan speed 1Hz can only be entered or left manually.
+ */
+#define AUO_PIXCIR_POWER_ACTIVE 0x00
+#define AUO_PIXCIR_POWER_SLEEP 0x01
+#define AUO_PIXCIR_POWER_DEEP_SLEEP 0x02
+#define AUO_PIXCIR_POWER_MASK 0x03
+
+#define AUO_PIXCIR_POWER_ALLOW_SLEEP (1 << 2)
+#define AUO_PIXCIR_POWER_IDLE_TIME(ms) ((ms & 0xf) << 4)
+
+#define AUO_PIXCIR_CALIBRATE 0x03
+
+#define AUO_PIXCIR_EEPROM_CALIB_X_LEN 62
+#define AUO_PIXCIR_EEPROM_CALIB_Y_LEN 36
+
+#define AUO_PIXCIR_RAW_DATA_X_LEN 18
+#define AUO_PIXCIR_RAW_DATA_Y_LEN 11
+
+#define AUO_PIXCIR_STRENGTH_ENABLE (1 << 0)
+
+/* Touchscreen absolute values */
+#define AUO_PIXCIR_REPORT_POINTS 2
+#define AUO_PIXCIR_MAX_AREA 0xff
+#define AUO_PIXCIR_PENUP_TIMEOUT_MS 10
+
+struct auo_pixcir_ts {
+ struct i2c_client *client;
+ struct input_dev *input;
+ char phys[32];
+
+ /* special handling for touch_indicate interupt mode */
+ bool touch_ind_mode;
+
+ wait_queue_head_t wait;
+ bool stopped;
+};
+
+struct auo_point_t {
+ int coord_x;
+ int coord_y;
+ int area_major;
+ int area_minor;
+ int orientation;
+};
+
+static int auo_pixcir_collect_data(struct auo_pixcir_ts *ts,
+ struct auo_point_t *point)
+{
+ struct i2c_client *client = ts->client;
+ const struct auo_pixcir_ts_platdata *pdata = client->dev.platform_data;
+ uint8_t raw_coord[8];
+ uint8_t raw_area[4];
+ int i, ret;
+
+ /* touch coordinates */
+ ret = i2c_smbus_read_i2c_block_data(client, AUO_PIXCIR_REG_X1_LSB,
+ 8, raw_coord);
+ if (ret < 0) {
+ dev_err(&client->dev, "failed to read coordinate, %d\n", ret);
+ return ret;
+ }
+
+ /* touch area */
+ ret = i2c_smbus_read_i2c_block_data(client, AUO_PIXCIR_REG_TOUCHAREA_X1,
+ 4, raw_area);
+ if (ret < 0) {
+ dev_err(&client->dev, "could not read touch area, %d\n", ret);
+ return ret;
+ }
+
+ for (i = 0; i < AUO_PIXCIR_REPORT_POINTS; i++) {
+ point[i].coord_x =
+ raw_coord[4 * i + 1] << 8 | raw_coord[4 * i];
+ point[i].coord_y =
+ raw_coord[4 * i + 3] << 8 | raw_coord[4 * i + 2];
+
+ if (point[i].coord_x > pdata->x_max ||
+ point[i].coord_y > pdata->y_max) {
+ dev_warn(&client->dev, "coordinates (%d,%d) invalid\n",
+ point[i].coord_x, point[i].coord_y);
+ point[i].coord_x = point[i].coord_y = 0;
+ }
+
+ /* determine touch major, minor and orientation */
+ point[i].area_major = max(raw_area[2 * i], raw_area[2 * i + 1]);
+ point[i].area_minor = min(raw_area[2 * i], raw_area[2 * i + 1]);
+ point[i].orientation = raw_area[2 * i] > raw_area[2 * i + 1];
+ }
+
+ return 0;
+}
+
+static irqreturn_t auo_pixcir_interrupt(int irq, void *dev_id)
+{
+ struct auo_pixcir_ts *ts = dev_id;
+ struct i2c_client *client = ts->client;
+ const struct auo_pixcir_ts_platdata *pdata = client->dev.platform_data;
+ struct auo_point_t point[AUO_PIXCIR_REPORT_POINTS];
+ int i;
+ int ret;
+ int fingers = 0;
+ int abs = -1;
+
+ while (!ts->stopped) {
+
+ /* check for up event in touch touch_ind_mode */
+ if (ts->touch_ind_mode) {
+ if (gpio_get_value(pdata->gpio_int) == 0) {
+ input_mt_sync(ts->input);
+ input_report_key(ts->input, BTN_TOUCH, 0);
+ input_sync(ts->input);
+ break;
+ }
+ }
+
+ ret = auo_pixcir_collect_data(ts, point);
+ if (ret < 0) {
+ /* we want to loop only in touch_ind_mode */
+ if (!ts->touch_ind_mode)
+ break;
+
+ wait_event_timeout(ts->wait, ts->stopped,
+ msecs_to_jiffies(AUO_PIXCIR_PENUP_TIMEOUT_MS));
+ continue;
+ }
+
+ for (i = 0; i < AUO_PIXCIR_REPORT_POINTS; i++) {
+ if (point[i].coord_x > 0 || point[i].coord_y > 0) {
+ input_report_abs(ts->input, ABS_MT_POSITION_X,
+ point[i].coord_x);
+ input_report_abs(ts->input, ABS_MT_POSITION_Y,
+ point[i].coord_y);
+ input_report_abs(ts->input, ABS_MT_TOUCH_MAJOR,
+ point[i].area_major);
+ input_report_abs(ts->input, ABS_MT_TOUCH_MINOR,
+ point[i].area_minor);
+ input_report_abs(ts->input, ABS_MT_ORIENTATION,
+ point[i].orientation);
+ input_mt_sync(ts->input);
+
+ /* use first finger as source for singletouch */
+ if (fingers == 0)
+ abs = i;
+
+ /* number of touch points could also be queried
+ * via i2c but would require an additional call
+ */
+ fingers++;
+ }
+ }
+
+ input_report_key(ts->input, BTN_TOUCH, fingers > 0);
+
+ if (abs > -1) {
+ input_report_abs(ts->input, ABS_X, point[abs].coord_x);
+ input_report_abs(ts->input, ABS_Y, point[abs].coord_y);
+ }
+
+ input_sync(ts->input);
+
+ /* we want to loop only in touch_ind_mode */
+ if (!ts->touch_ind_mode)
+ break;
+
+ wait_event_timeout(ts->wait, ts->stopped,
+ msecs_to_jiffies(AUO_PIXCIR_PENUP_TIMEOUT_MS));
+ }
+
+ return IRQ_HANDLED;
+}
+
+/*
+ * Set the power mode of the device.
+ * Valid modes are
+ * - AUO_PIXCIR_POWER_ACTIVE
+ * - AUO_PIXCIR_POWER_SLEEP - automatically left on first touch
+ * - AUO_PIXCIR_POWER_DEEP_SLEEP
+ */
+static int auo_pixcir_power_mode(struct auo_pixcir_ts *ts, int mode)
+{
+ struct i2c_client *client = ts->client;
+ int ret;
+
+ ret = i2c_smbus_read_byte_data(client, AUO_PIXCIR_REG_POWER_MODE);
+ if (ret < 0) {
+ dev_err(&client->dev, "unable to read reg %Xh, %d\n",
+ AUO_PIXCIR_REG_POWER_MODE, ret);
+ return ret;
+ }
+
+ ret &= ~AUO_PIXCIR_POWER_MASK;
+ ret |= mode;
+
+ ret = i2c_smbus_write_byte_data(client, AUO_PIXCIR_REG_POWER_MODE, ret);
+ if (ret) {
+ dev_err(&client->dev, "unable to write reg %Xh, %d\n",
+ AUO_PIXCIR_REG_POWER_MODE, ret);
+ return ret;
+ }
+
+ return 0;
+}
+
+static __devinit int auo_pixcir_int_config(struct auo_pixcir_ts *ts,
+ int int_setting)
+{
+ struct i2c_client *client = ts->client;
+ struct auo_pixcir_ts_platdata *pdata = client->dev.platform_data;
+ int ret;
+
+ ret = i2c_smbus_read_byte_data(client, AUO_PIXCIR_REG_INT_SETTING);
+ if (ret < 0) {
+ dev_err(&client->dev, "unable to read reg %Xh, %d\n",
+ AUO_PIXCIR_REG_INT_SETTING, ret);
+ return ret;
+ }
+
+ ret &= ~AUO_PIXCIR_INT_MODE_MASK;
+ ret |= int_setting;
+ ret |= AUO_PIXCIR_INT_POL_HIGH; /* always use high for interrupts */
+
+ ret = i2c_smbus_write_byte_data(client, AUO_PIXCIR_REG_INT_SETTING,
+ ret);
+ if (ret < 0) {
+ dev_err(&client->dev, "unable to write reg %Xh, %d\n",
+ AUO_PIXCIR_REG_INT_SETTING, ret);
+ return ret;
+ }
+
+ ts->touch_ind_mode = pdata->int_setting == AUO_PIXCIR_INT_TOUCH_IND;
+
+ return 0;
+}
+
+/* control the generation of interrupts on the device side */
+static int auo_pixcir_int_toggle(struct auo_pixcir_ts *ts, bool enable)
+{
+ struct i2c_client *client = ts->client;
+ int ret;
+
+ ret = i2c_smbus_read_byte_data(client, AUO_PIXCIR_REG_INT_SETTING);
+ if (ret < 0) {
+ dev_err(&client->dev, "unable to read reg %Xh, %d\n",
+ AUO_PIXCIR_REG_INT_SETTING, ret);
+ return ret;
+ }
+
+ if (enable)
+ ret |= AUO_PIXCIR_INT_ENABLE;
+ else
+ ret &= ~AUO_PIXCIR_INT_ENABLE;
+
+ ret = i2c_smbus_write_byte_data(client, AUO_PIXCIR_REG_INT_SETTING,
+ ret);
+ if (ret < 0) {
+ dev_err(&client->dev, "unable to write reg %Xh, %d\n",
+ AUO_PIXCIR_REG_INT_SETTING, ret);
+ return ret;
+ }
+
+ return 0;
+}
+
+static int auo_pixcir_start(struct auo_pixcir_ts *ts)
+{
+ struct i2c_client *client = ts->client;
+ int ret;
+
+ ret = auo_pixcir_power_mode(ts, AUO_PIXCIR_POWER_ACTIVE);
+ if (ret < 0) {
+ dev_err(&client->dev, "could not set power mode, %d\n",
+ ret);
+ return ret;
+ }
+
+ ts->stopped = false;
+ mb();
+ enable_irq(client->irq);
+
+ ret = auo_pixcir_int_toggle(ts, 1);
+ if (ret < 0) {
+ dev_err(&client->dev, "could not enable interrupt, %d\n",
+ ret);
+ disable_irq(client->irq);
+ return ret;
+ }
+
+ return 0;
+}
+
+static int auo_pixcir_stop(struct auo_pixcir_ts *ts)
+{
+ struct i2c_client *client = ts->client;
+ int ret;
+
+ ret = auo_pixcir_int_toggle(ts, 0);
+ if (ret < 0) {
+ dev_err(&client->dev, "could not disable interrupt, %d\n",
+ ret);
+ return ret;
+ }
+
+ /* disable receiving of interrupts */
+ disable_irq(client->irq);
+ ts->stopped = true;
+ mb();
+ wake_up(&ts->wait);
+
+ return auo_pixcir_power_mode(ts, AUO_PIXCIR_POWER_DEEP_SLEEP);
+}
+
+static int auo_pixcir_input_open(struct input_dev *dev)
+{
+ struct auo_pixcir_ts *ts = input_get_drvdata(dev);
+ int ret;
+
+ ret = auo_pixcir_start(ts);
+ if (ret)
+ return ret;
+
+ return 0;
+}
+
+static void auo_pixcir_input_close(struct input_dev *dev)
+{
+ struct auo_pixcir_ts *ts = input_get_drvdata(dev);
+
+ auo_pixcir_stop(ts);
+
+ return;
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int auo_pixcir_suspend(struct device *dev)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct auo_pixcir_ts *ts = i2c_get_clientdata(client);
+ struct input_dev *input = ts->input;
+ int ret = 0;
+
+ mutex_lock(&input->mutex);
+
+ /* when configured as wakeup source, device should always wake system
+ * therefore start device if necessary
+ */
+ if (device_may_wakeup(&client->dev)) {
+ /* need to start device if not open, to be wakeup source */
+ if (!input->users) {
+ ret = auo_pixcir_start(ts);
+ if (ret)
+ goto unlock;
+ }
+
+ enable_irq_wake(client->irq);
+ ret = auo_pixcir_power_mode(ts, AUO_PIXCIR_POWER_SLEEP);
+ } else if (input->users) {
+ ret = auo_pixcir_stop(ts);
+ }
+
+unlock:
+ mutex_unlock(&input->mutex);
+
+ return ret;
+}
+
+static int auo_pixcir_resume(struct device *dev)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct auo_pixcir_ts *ts = i2c_get_clientdata(client);
+ struct input_dev *input = ts->input;
+ int ret = 0;
+
+ mutex_lock(&input->mutex);
+
+ if (device_may_wakeup(&client->dev)) {
+ disable_irq_wake(client->irq);
+
+ /* need to stop device if it was not open on suspend */
+ if (!input->users) {
+ ret = auo_pixcir_stop(ts);
+ if (ret)
+ goto unlock;
+ }
+
+ /* device wakes automatically from SLEEP */
+ } else if (input->users) {
+ ret = auo_pixcir_start(ts);
+ }
+
+unlock:
+ mutex_unlock(&input->mutex);
+
+ return ret;
+}
+#endif
+
+static SIMPLE_DEV_PM_OPS(auo_pixcir_pm_ops, auo_pixcir_suspend,
+ auo_pixcir_resume);
+
+static int __devinit auo_pixcir_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ const struct auo_pixcir_ts_platdata *pdata = client->dev.platform_data;
+ struct auo_pixcir_ts *ts;
+ struct input_dev *input_dev;
+ int ret;
+
+ if (!pdata)
+ return -EINVAL;
+
+ ts = kzalloc(sizeof(struct auo_pixcir_ts), GFP_KERNEL);
+ if (!ts)
+ return -ENOMEM;
+
+ ret = gpio_request(pdata->gpio_int, "auo_pixcir_ts_int");
+ if (ret) {
+ dev_err(&client->dev, "request of gpio %d failed, %d\n",
+ pdata->gpio_int, ret);
+ goto err_gpio_int;
+ }
+
+ if (pdata->init_hw)
+ pdata->init_hw(client);
+
+ ts->client = client;
+ ts->touch_ind_mode = 0;
+ init_waitqueue_head(&ts->wait);
+
+ snprintf(ts->phys, sizeof(ts->phys),
+ "%s/input0", dev_name(&client->dev));
+
+ input_dev = input_allocate_device();
+ if (!input_dev) {
+ dev_err(&client->dev, "could not allocate input device\n");
+ goto err_input_alloc;
+ }
+
+ ts->input = input_dev;
+
+ input_dev->name = "AUO-Pixcir touchscreen";
+ input_dev->phys = ts->phys;
+ input_dev->id.bustype = BUS_I2C;
+ input_dev->dev.parent = &client->dev;
+
+ input_dev->open = auo_pixcir_input_open;
+ input_dev->close = auo_pixcir_input_close;
+
+ __set_bit(EV_ABS, input_dev->evbit);
+ __set_bit(EV_KEY, input_dev->evbit);
+
+ __set_bit(BTN_TOUCH, input_dev->keybit);
+
+ /* For single touch */
+ input_set_abs_params(input_dev, ABS_X, 0, pdata->x_max, 0, 0);
+ input_set_abs_params(input_dev, ABS_Y, 0, pdata->y_max, 0, 0);
+
+ /* For multi touch */
+ input_set_abs_params(input_dev, ABS_MT_POSITION_X, 0,
+ pdata->x_max, 0, 0);
+ input_set_abs_params(input_dev, ABS_MT_POSITION_Y, 0,
+ pdata->y_max, 0, 0);
+ input_set_abs_params(input_dev, ABS_MT_TOUCH_MAJOR, 0,
+ AUO_PIXCIR_MAX_AREA, 0, 0);
+ input_set_abs_params(input_dev, ABS_MT_TOUCH_MINOR, 0,
+ AUO_PIXCIR_MAX_AREA, 0, 0);
+ input_set_abs_params(input_dev, ABS_MT_ORIENTATION, 0, 1, 0, 0);
+
+ ret = i2c_smbus_read_byte_data(client, AUO_PIXCIR_REG_VERSION);
+ if (ret < 0)
+ goto err_fw_vers;
+ dev_info(&client->dev, "firmware version 0x%X\n", ret);
+
+ ret = auo_pixcir_int_config(ts, pdata->int_setting);
+ if (ret)
+ goto err_fw_vers;
+
+ input_set_drvdata(ts->input, ts);
+ ts->stopped = true;
+
+ ret = request_threaded_irq(client->irq, NULL, auo_pixcir_interrupt,
+ IRQF_TRIGGER_RISING | IRQF_ONESHOT,
+ input_dev->name, ts);
+ if (ret) {
+ dev_err(&client->dev, "irq %d requested failed\n", client->irq);
+ goto err_fw_vers;
+ }
+
+ /* stop device and put it into deep sleep until it is opened */
+ ret = auo_pixcir_stop(ts);
+ if (ret < 0)
+ goto err_input_register;
+
+ ret = input_register_device(input_dev);
+ if (ret) {
+ dev_err(&client->dev, "could not register input device\n");
+ goto err_input_register;
+ }
+
+ i2c_set_clientdata(client, ts);
+
+ return 0;
+
+err_input_register:
+ free_irq(client->irq, ts);
+err_fw_vers:
+ input_free_device(input_dev);
+err_input_alloc:
+ if (pdata->exit_hw)
+ pdata->exit_hw(client);
+ gpio_free(pdata->gpio_int);
+err_gpio_int:
+ kfree(ts);
+
+ return ret;
+}
+
+static int __devexit auo_pixcir_remove(struct i2c_client *client)
+{
+ struct auo_pixcir_ts *ts = i2c_get_clientdata(client);
+ const struct auo_pixcir_ts_platdata *pdata = client->dev.platform_data;
+
+ free_irq(client->irq, ts);
+
+ input_unregister_device(ts->input);
+
+ if (pdata->exit_hw)
+ pdata->exit_hw(client);
+
+ gpio_free(pdata->gpio_int);
+
+ kfree(ts);
+
+ return 0;
+}
+
+static const struct i2c_device_id auo_pixcir_idtable[] = {
+ { "auo_pixcir_ts", 0 },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, auo_pixcir_idtable);
+
+static struct i2c_driver auo_pixcir_driver = {
+ .driver = {
+ .owner = THIS_MODULE,
+ .name = "auo_pixcir_ts",
+ .pm = &auo_pixcir_pm_ops,
+ },
+ .probe = auo_pixcir_probe,
+ .remove = __devexit_p(auo_pixcir_remove),
+ .id_table = auo_pixcir_idtable,
+};
+
+static int __init auo_pixcir_init(void)
+{
+ return i2c_add_driver(&auo_pixcir_driver);
+}
+module_init(auo_pixcir_init);
+
+static void __exit auo_pixcir_exit(void)
+{
+ i2c_del_driver(&auo_pixcir_driver);
+}
+module_exit(auo_pixcir_exit);
+
+MODULE_DESCRIPTION("AUO-PIXCIR touchscreen driver");
+MODULE_LICENSE("GPL v2");
+MODULE_AUTHOR("Heiko Stuebner <heiko@sntech.de>");
diff --git a/drivers/input/touchscreen/da9034-ts.c b/drivers/input/touchscreen/da9034-ts.c
index 2b72a5923c16..36b65cf10d7f 100644
--- a/drivers/input/touchscreen/da9034-ts.c
+++ b/drivers/input/touchscreen/da9034-ts.c
@@ -379,18 +379,7 @@ static struct platform_driver da9034_touch_driver = {
.probe = da9034_touch_probe,
.remove = __devexit_p(da9034_touch_remove),
};
-
-static int __init da9034_touch_init(void)
-{
- return platform_driver_register(&da9034_touch_driver);
-}
-module_init(da9034_touch_init);
-
-static void __exit da9034_touch_exit(void)
-{
- platform_driver_unregister(&da9034_touch_driver);
-}
-module_exit(da9034_touch_exit);
+module_platform_driver(da9034_touch_driver);
MODULE_DESCRIPTION("Touchscreen driver for Dialog Semiconductor DA9034");
MODULE_AUTHOR("Eric Miao <eric.miao@marvell.com>, Bin Yang <bin.yang@marvell.com>");
diff --git a/drivers/input/touchscreen/eeti_ts.c b/drivers/input/touchscreen/eeti_ts.c
index 7f8f538a9806..1df19bb8534a 100644
--- a/drivers/input/touchscreen/eeti_ts.c
+++ b/drivers/input/touchscreen/eeti_ts.c
@@ -35,11 +35,11 @@
#include <linux/input/eeti_ts.h>
#include <linux/slab.h>
-static int flip_x;
+static bool flip_x;
module_param(flip_x, bool, 0644);
MODULE_PARM_DESC(flip_x, "flip x coordinate");
-static int flip_y;
+static bool flip_y;
module_param(flip_y, bool, 0644);
MODULE_PARM_DESC(flip_y, "flip y coordinate");
diff --git a/drivers/input/touchscreen/egalax_ts.c b/drivers/input/touchscreen/egalax_ts.c
new file mode 100644
index 000000000000..eadcc2e83c77
--- /dev/null
+++ b/drivers/input/touchscreen/egalax_ts.c
@@ -0,0 +1,303 @@
+/*
+ * Driver for EETI eGalax Multiple Touch Controller
+ *
+ * Copyright (C) 2011 Freescale Semiconductor, Inc.
+ *
+ * based on max11801_ts.c
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+/* EETI eGalax serial touch screen controller is a I2C based multiple
+ * touch screen controller, it supports 5 point multiple touch. */
+
+/* TODO:
+ - auto idle mode support
+*/
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/i2c.h>
+#include <linux/interrupt.h>
+#include <linux/input.h>
+#include <linux/irq.h>
+#include <linux/gpio.h>
+#include <linux/delay.h>
+#include <linux/slab.h>
+#include <linux/bitops.h>
+#include <linux/input/mt.h>
+
+/*
+ * Mouse Mode: some panel may configure the controller to mouse mode,
+ * which can only report one point at a given time.
+ * This driver will ignore events in this mode.
+ */
+#define REPORT_MODE_MOUSE 0x1
+/*
+ * Vendor Mode: this mode is used to transfer some vendor specific
+ * messages.
+ * This driver will ignore events in this mode.
+ */
+#define REPORT_MODE_VENDOR 0x3
+/* Multiple Touch Mode */
+#define REPORT_MODE_MTTOUCH 0x4
+
+#define MAX_SUPPORT_POINTS 5
+
+#define EVENT_VALID_OFFSET 7
+#define EVENT_VALID_MASK (0x1 << EVENT_VALID_OFFSET)
+#define EVENT_ID_OFFSET 2
+#define EVENT_ID_MASK (0xf << EVENT_ID_OFFSET)
+#define EVENT_IN_RANGE (0x1 << 1)
+#define EVENT_DOWN_UP (0X1 << 0)
+
+#define MAX_I2C_DATA_LEN 10
+
+#define EGALAX_MAX_X 32760
+#define EGALAX_MAX_Y 32760
+#define EGALAX_MAX_TRIES 100
+
+struct egalax_ts {
+ struct i2c_client *client;
+ struct input_dev *input_dev;
+};
+
+static irqreturn_t egalax_ts_interrupt(int irq, void *dev_id)
+{
+ struct egalax_ts *ts = dev_id;
+ struct input_dev *input_dev = ts->input_dev;
+ struct i2c_client *client = ts->client;
+ u8 buf[MAX_I2C_DATA_LEN];
+ int id, ret, x, y, z;
+ int tries = 0;
+ bool down, valid;
+ u8 state;
+
+ do {
+ ret = i2c_master_recv(client, buf, MAX_I2C_DATA_LEN);
+ } while (ret == -EAGAIN && tries++ < EGALAX_MAX_TRIES);
+
+ if (ret < 0)
+ return IRQ_HANDLED;
+
+ if (buf[0] != REPORT_MODE_MTTOUCH) {
+ /* ignore mouse events and vendor events */
+ return IRQ_HANDLED;
+ }
+
+ state = buf[1];
+ x = (buf[3] << 8) | buf[2];
+ y = (buf[5] << 8) | buf[4];
+ z = (buf[7] << 8) | buf[6];
+
+ valid = state & EVENT_VALID_MASK;
+ id = (state & EVENT_ID_MASK) >> EVENT_ID_OFFSET;
+ down = state & EVENT_DOWN_UP;
+
+ if (!valid || id > MAX_SUPPORT_POINTS) {
+ dev_dbg(&client->dev, "point invalid\n");
+ return IRQ_HANDLED;
+ }
+
+ input_mt_slot(input_dev, id);
+ input_mt_report_slot_state(input_dev, MT_TOOL_FINGER, down);
+
+ dev_dbg(&client->dev, "%s id:%d x:%d y:%d z:%d",
+ down ? "down" : "up", id, x, y, z);
+
+ if (down) {
+ input_report_abs(input_dev, ABS_MT_POSITION_X, x);
+ input_report_abs(input_dev, ABS_MT_POSITION_Y, y);
+ input_report_abs(input_dev, ABS_MT_PRESSURE, z);
+ }
+
+ input_mt_report_pointer_emulation(input_dev, true);
+ input_sync(input_dev);
+
+ return IRQ_HANDLED;
+}
+
+/* wake up controller by an falling edge of interrupt gpio. */
+static int egalax_wake_up_device(struct i2c_client *client)
+{
+ int gpio = irq_to_gpio(client->irq);
+ int ret;
+
+ ret = gpio_request(gpio, "egalax_irq");
+ if (ret < 0) {
+ dev_err(&client->dev,
+ "request gpio failed, cannot wake up controller: %d\n",
+ ret);
+ return ret;
+ }
+
+ /* wake up controller via an falling edge on IRQ gpio. */
+ gpio_direction_output(gpio, 0);
+ gpio_set_value(gpio, 1);
+
+ /* controller should be waken up, return irq. */
+ gpio_direction_input(gpio);
+ gpio_free(gpio);
+
+ return 0;
+}
+
+static int __devinit egalax_firmware_version(struct i2c_client *client)
+{
+ static const u8 cmd[MAX_I2C_DATA_LEN] = { 0x03, 0x03, 0xa, 0x01, 0x41 };
+ int ret;
+
+ ret = i2c_master_send(client, cmd, MAX_I2C_DATA_LEN);
+ if (ret < 0)
+ return ret;
+
+ return 0;
+}
+
+static int __devinit egalax_ts_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ struct egalax_ts *ts;
+ struct input_dev *input_dev;
+ int ret;
+ int error;
+
+ ts = kzalloc(sizeof(struct egalax_ts), GFP_KERNEL);
+ if (!ts) {
+ dev_err(&client->dev, "Failed to allocate memory\n");
+ return -ENOMEM;
+ }
+
+ input_dev = input_allocate_device();
+ if (!input_dev) {
+ dev_err(&client->dev, "Failed to allocate memory\n");
+ error = -ENOMEM;
+ goto err_free_ts;
+ }
+
+ ts->client = client;
+ ts->input_dev = input_dev;
+
+ /* controller may be in sleep, wake it up. */
+ egalax_wake_up_device(client);
+
+ ret = egalax_firmware_version(client);
+ if (ret < 0) {
+ dev_err(&client->dev, "Failed to read firmware version\n");
+ error = -EIO;
+ goto err_free_dev;
+ }
+
+ input_dev->name = "EETI eGalax Touch Screen";
+ input_dev->id.bustype = BUS_I2C;
+ input_dev->dev.parent = &client->dev;
+
+ __set_bit(EV_ABS, input_dev->evbit);
+ __set_bit(EV_KEY, input_dev->evbit);
+ __set_bit(BTN_TOUCH, input_dev->keybit);
+
+ input_set_abs_params(input_dev, ABS_X, 0, EGALAX_MAX_X, 0, 0);
+ input_set_abs_params(input_dev, ABS_Y, 0, EGALAX_MAX_Y, 0, 0);
+ input_set_abs_params(input_dev,
+ ABS_MT_POSITION_X, 0, EGALAX_MAX_X, 0, 0);
+ input_set_abs_params(input_dev,
+ ABS_MT_POSITION_X, 0, EGALAX_MAX_Y, 0, 0);
+ input_mt_init_slots(input_dev, MAX_SUPPORT_POINTS);
+
+ input_set_drvdata(input_dev, ts);
+
+ error = request_threaded_irq(client->irq, NULL, egalax_ts_interrupt,
+ IRQF_TRIGGER_LOW | IRQF_ONESHOT,
+ "egalax_ts", ts);
+ if (error < 0) {
+ dev_err(&client->dev, "Failed to register interrupt\n");
+ goto err_free_dev;
+ }
+
+ error = input_register_device(ts->input_dev);
+ if (error)
+ goto err_free_irq;
+
+ i2c_set_clientdata(client, ts);
+ return 0;
+
+err_free_irq:
+ free_irq(client->irq, ts);
+err_free_dev:
+ input_free_device(input_dev);
+err_free_ts:
+ kfree(ts);
+
+ return error;
+}
+
+static __devexit int egalax_ts_remove(struct i2c_client *client)
+{
+ struct egalax_ts *ts = i2c_get_clientdata(client);
+
+ free_irq(client->irq, ts);
+
+ input_unregister_device(ts->input_dev);
+ kfree(ts);
+
+ return 0;
+}
+
+static const struct i2c_device_id egalax_ts_id[] = {
+ { "egalax_ts", 0 },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, egalax_ts_id);
+
+#ifdef CONFIG_PM_SLEEP
+static int egalax_ts_suspend(struct device *dev)
+{
+ static const u8 suspend_cmd[MAX_I2C_DATA_LEN] = {
+ 0x3, 0x6, 0xa, 0x3, 0x36, 0x3f, 0x2, 0, 0, 0
+ };
+ struct i2c_client *client = to_i2c_client(dev);
+ int ret;
+
+ ret = i2c_master_send(client, suspend_cmd, MAX_I2C_DATA_LEN);
+ return ret > 0 ? 0 : ret;
+}
+
+static int egalax_ts_resume(struct device *dev)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+
+ return egalax_wake_up_device(client);
+}
+#endif
+
+static SIMPLE_DEV_PM_OPS(egalax_ts_pm_ops, egalax_ts_suspend, egalax_ts_resume);
+
+static struct i2c_driver egalax_ts_driver = {
+ .driver = {
+ .name = "egalax_ts",
+ .owner = THIS_MODULE,
+ .pm = &egalax_ts_pm_ops,
+ },
+ .id_table = egalax_ts_id,
+ .probe = egalax_ts_probe,
+ .remove = __devexit_p(egalax_ts_remove),
+};
+
+static int __init egalax_ts_init(void)
+{
+ return i2c_add_driver(&egalax_ts_driver);
+}
+
+static void __exit egalax_ts_exit(void)
+{
+ i2c_del_driver(&egalax_ts_driver);
+}
+
+module_init(egalax_ts_init);
+module_exit(egalax_ts_exit);
+
+MODULE_AUTHOR("Freescale Semiconductor, Inc.");
+MODULE_DESCRIPTION("Touchscreen driver for EETI eGalax touch controller");
+MODULE_LICENSE("GPL");
diff --git a/drivers/input/touchscreen/htcpen.c b/drivers/input/touchscreen/htcpen.c
index 62811de6f18f..d13143b68b3e 100644
--- a/drivers/input/touchscreen/htcpen.c
+++ b/drivers/input/touchscreen/htcpen.c
@@ -40,19 +40,13 @@ MODULE_LICENSE("GPL");
#define X_AXIS_MAX 2040
#define Y_AXIS_MAX 2040
-static int invert_x;
+static bool invert_x;
module_param(invert_x, bool, 0644);
MODULE_PARM_DESC(invert_x, "If set, X axis is inverted");
-static int invert_y;
+static bool invert_y;
module_param(invert_y, bool, 0644);
MODULE_PARM_DESC(invert_y, "If set, Y axis is inverted");
-static struct pnp_device_id pnp_ids[] = {
- { .id = "PNP0cc0" },
- { .id = "" }
-};
-MODULE_DEVICE_TABLE(pnp, pnp_ids);
-
static irqreturn_t htcpen_interrupt(int irq, void *handle)
{
struct input_dev *htcpen_dev = handle;
@@ -237,6 +231,7 @@ static struct dmi_system_id __initdata htcshift_dmi_table[] = {
},
{ }
};
+MODULE_DEVICE_TABLE(dmi, htcshift_dmi_table);
static int __init htcpen_isa_init(void)
{
diff --git a/drivers/input/touchscreen/intel-mid-touch.c b/drivers/input/touchscreen/intel-mid-touch.c
index 327695268e06..3cd7a837f82b 100644
--- a/drivers/input/touchscreen/intel-mid-touch.c
+++ b/drivers/input/touchscreen/intel-mid-touch.c
@@ -664,18 +664,7 @@ static struct platform_driver mrstouch_driver = {
.probe = mrstouch_probe,
.remove = __devexit_p(mrstouch_remove),
};
-
-static int __init mrstouch_init(void)
-{
- return platform_driver_register(&mrstouch_driver);
-}
-module_init(mrstouch_init);
-
-static void __exit mrstouch_exit(void)
-{
- platform_driver_unregister(&mrstouch_driver);
-}
-module_exit(mrstouch_exit);
+module_platform_driver(mrstouch_driver);
MODULE_AUTHOR("Sreedhara Murthy. D.S, sreedhara.ds@intel.com");
MODULE_DESCRIPTION("Intel Moorestown Resistive Touch Screen Driver");
diff --git a/drivers/input/touchscreen/jornada720_ts.c b/drivers/input/touchscreen/jornada720_ts.c
index 50076c2d59e2..c3848ad2325b 100644
--- a/drivers/input/touchscreen/jornada720_ts.c
+++ b/drivers/input/touchscreen/jornada720_ts.c
@@ -172,16 +172,4 @@ static struct platform_driver jornada720_ts_driver = {
.owner = THIS_MODULE,
},
};
-
-static int __init jornada720_ts_init(void)
-{
- return platform_driver_register(&jornada720_ts_driver);
-}
-
-static void __exit jornada720_ts_exit(void)
-{
- platform_driver_unregister(&jornada720_ts_driver);
-}
-
-module_init(jornada720_ts_init);
-module_exit(jornada720_ts_exit);
+module_platform_driver(jornada720_ts_driver);
diff --git a/drivers/input/touchscreen/lpc32xx_ts.c b/drivers/input/touchscreen/lpc32xx_ts.c
index 0a484ed5295c..afcd0691ec67 100644
--- a/drivers/input/touchscreen/lpc32xx_ts.c
+++ b/drivers/input/touchscreen/lpc32xx_ts.c
@@ -392,18 +392,7 @@ static struct platform_driver lpc32xx_ts_driver = {
.pm = LPC32XX_TS_PM_OPS,
},
};
-
-static int __init lpc32xx_ts_init(void)
-{
- return platform_driver_register(&lpc32xx_ts_driver);
-}
-module_init(lpc32xx_ts_init);
-
-static void __exit lpc32xx_ts_exit(void)
-{
- platform_driver_unregister(&lpc32xx_ts_driver);
-}
-module_exit(lpc32xx_ts_exit);
+module_platform_driver(lpc32xx_ts_driver);
MODULE_AUTHOR("Kevin Wells <kevin.wells@nxp.com");
MODULE_DESCRIPTION("LPC32XX TSC Driver");
diff --git a/drivers/input/touchscreen/mainstone-wm97xx.c b/drivers/input/touchscreen/mainstone-wm97xx.c
index e966c29ff1bb..7d2b2136e5ad 100644
--- a/drivers/input/touchscreen/mainstone-wm97xx.c
+++ b/drivers/input/touchscreen/mainstone-wm97xx.c
@@ -302,19 +302,7 @@ static struct platform_driver mainstone_wm97xx_driver = {
.name = "wm97xx-touch",
},
};
-
-static int __init mainstone_wm97xx_init(void)
-{
- return platform_driver_register(&mainstone_wm97xx_driver);
-}
-
-static void __exit mainstone_wm97xx_exit(void)
-{
- platform_driver_unregister(&mainstone_wm97xx_driver);
-}
-
-module_init(mainstone_wm97xx_init);
-module_exit(mainstone_wm97xx_exit);
+module_platform_driver(mainstone_wm97xx_driver);
/* Module information */
MODULE_AUTHOR("Liam Girdwood <lrg@slimlogic.co.uk>");
diff --git a/drivers/input/touchscreen/migor_ts.c b/drivers/input/touchscreen/migor_ts.c
index 5803bd0c1cca..5226194aa78e 100644
--- a/drivers/input/touchscreen/migor_ts.c
+++ b/drivers/input/touchscreen/migor_ts.c
@@ -36,7 +36,6 @@
struct migor_ts_priv {
struct i2c_client *client;
struct input_dev *input;
- struct delayed_work work;
int irq;
};
@@ -44,15 +43,24 @@ static const u_int8_t migor_ts_ena_seq[17] = { 0x33, 0x22, 0x11,
0x01, 0x06, 0x07, };
static const u_int8_t migor_ts_dis_seq[17] = { };
-static void migor_ts_poscheck(struct work_struct *work)
+static irqreturn_t migor_ts_isr(int irq, void *dev_id)
{
- struct migor_ts_priv *priv = container_of(work,
- struct migor_ts_priv,
- work.work);
+ struct migor_ts_priv *priv = dev_id;
unsigned short xpos, ypos;
unsigned char event;
u_int8_t buf[16];
+ /*
+ * The touch screen controller chip is hooked up to the CPU
+ * using I2C and a single interrupt line. The interrupt line
+ * is pulled low whenever someone taps the screen. To deassert
+ * the interrupt line we need to acknowledge the interrupt by
+ * communicating with the controller over the slow i2c bus.
+ *
+ * Since I2C bus controller may sleep we are using threaded
+ * IRQ here.
+ */
+
memset(buf, 0, sizeof(buf));
/* Set Index 0 */
@@ -72,41 +80,25 @@ static void migor_ts_poscheck(struct work_struct *work)
xpos = ((buf[11] & 0x03) << 8 | buf[10]);
event = buf[12];
- if (event == EVENT_PENDOWN || event == EVENT_REPEAT) {
+ switch (event) {
+ case EVENT_PENDOWN:
+ case EVENT_REPEAT:
input_report_key(priv->input, BTN_TOUCH, 1);
input_report_abs(priv->input, ABS_X, ypos); /*X-Y swap*/
input_report_abs(priv->input, ABS_Y, xpos);
input_sync(priv->input);
- } else if (event == EVENT_PENUP) {
+ break;
+
+ case EVENT_PENUP:
input_report_key(priv->input, BTN_TOUCH, 0);
input_sync(priv->input);
+ break;
}
- out:
- enable_irq(priv->irq);
-}
-
-static irqreturn_t migor_ts_isr(int irq, void *dev_id)
-{
- struct migor_ts_priv *priv = dev_id;
-
- /* the touch screen controller chip is hooked up to the cpu
- * using i2c and a single interrupt line. the interrupt line
- * is pulled low whenever someone taps the screen. to deassert
- * the interrupt line we need to acknowledge the interrupt by
- * communicating with the controller over the slow i2c bus.
- *
- * we can't acknowledge from interrupt context since the i2c
- * bus controller may sleep, so we just disable the interrupt
- * here and handle the acknowledge using delayed work.
- */
-
- disable_irq_nosync(irq);
- schedule_delayed_work(&priv->work, HZ / 20);
+ out:
return IRQ_HANDLED;
}
-
static int migor_ts_open(struct input_dev *dev)
{
struct migor_ts_priv *priv = input_get_drvdata(dev);
@@ -131,15 +123,6 @@ static void migor_ts_close(struct input_dev *dev)
disable_irq(priv->irq);
- /* cancel pending work and wait for migor_ts_poscheck() to finish */
- if (cancel_delayed_work_sync(&priv->work)) {
- /*
- * if migor_ts_poscheck was canceled we need to enable IRQ
- * here to balance disable done in migor_ts_isr.
- */
- enable_irq(priv->irq);
- }
-
/* disable controller */
i2c_master_send(client, migor_ts_dis_seq, sizeof(migor_ts_dis_seq));
@@ -154,23 +137,20 @@ static int migor_ts_probe(struct i2c_client *client,
int error;
priv = kzalloc(sizeof(*priv), GFP_KERNEL);
- if (!priv) {
- dev_err(&client->dev, "failed to allocate driver data\n");
- error = -ENOMEM;
- goto err0;
- }
-
- dev_set_drvdata(&client->dev, priv);
-
input = input_allocate_device();
- if (!input) {
- dev_err(&client->dev, "Failed to allocate input device.\n");
+ if (!priv || !input) {
+ dev_err(&client->dev, "failed to allocate memory\n");
error = -ENOMEM;
- goto err1;
+ goto err_free_mem;
}
+ priv->client = client;
+ priv->input = input;
+ priv->irq = client->irq;
+
input->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
- input->keybit[BIT_WORD(BTN_TOUCH)] = BIT_MASK(BTN_TOUCH);
+
+ __set_bit(BTN_TOUCH, input->keybit);
input_set_abs_params(input, ABS_X, 95, 955, 0, 0);
input_set_abs_params(input, ABS_Y, 85, 935, 0, 0);
@@ -184,39 +164,34 @@ static int migor_ts_probe(struct i2c_client *client,
input_set_drvdata(input, priv);
- priv->client = client;
- priv->input = input;
- INIT_DELAYED_WORK(&priv->work, migor_ts_poscheck);
- priv->irq = client->irq;
-
- error = input_register_device(input);
- if (error)
- goto err1;
-
- error = request_irq(priv->irq, migor_ts_isr, IRQF_TRIGGER_LOW,
- client->name, priv);
+ error = request_threaded_irq(priv->irq, NULL, migor_ts_isr,
+ IRQF_TRIGGER_LOW | IRQF_ONESHOT,
+ client->name, priv);
if (error) {
dev_err(&client->dev, "Unable to request touchscreen IRQ.\n");
- goto err2;
+ goto err_free_mem;
}
+ error = input_register_device(input);
+ if (error)
+ goto err_free_irq;
+
+ i2c_set_clientdata(client, priv);
device_init_wakeup(&client->dev, 1);
+
return 0;
- err2:
- input_unregister_device(input);
- input = NULL; /* so we dont try to free it below */
- err1:
+ err_free_irq:
+ free_irq(priv->irq, priv);
+ err_free_mem:
input_free_device(input);
kfree(priv);
- err0:
- dev_set_drvdata(&client->dev, NULL);
return error;
}
static int migor_ts_remove(struct i2c_client *client)
{
- struct migor_ts_priv *priv = dev_get_drvdata(&client->dev);
+ struct migor_ts_priv *priv = i2c_get_clientdata(client);
free_irq(priv->irq, priv);
input_unregister_device(priv->input);
@@ -230,7 +205,7 @@ static int migor_ts_remove(struct i2c_client *client)
static int migor_ts_suspend(struct device *dev)
{
struct i2c_client *client = to_i2c_client(dev);
- struct migor_ts_priv *priv = dev_get_drvdata(&client->dev);
+ struct migor_ts_priv *priv = i2c_get_clientdata(client);
if (device_may_wakeup(&client->dev))
enable_irq_wake(priv->irq);
@@ -241,7 +216,7 @@ static int migor_ts_suspend(struct device *dev)
static int migor_ts_resume(struct device *dev)
{
struct i2c_client *client = to_i2c_client(dev);
- struct migor_ts_priv *priv = dev_get_drvdata(&client->dev);
+ struct migor_ts_priv *priv = i2c_get_clientdata(client);
if (device_may_wakeup(&client->dev))
disable_irq_wake(priv->irq);
diff --git a/drivers/input/touchscreen/pcap_ts.c b/drivers/input/touchscreen/pcap_ts.c
index ea6ef16e59b4..f57aeb80f7e3 100644
--- a/drivers/input/touchscreen/pcap_ts.c
+++ b/drivers/input/touchscreen/pcap_ts.c
@@ -252,19 +252,7 @@ static struct platform_driver pcap_ts_driver = {
.pm = PCAP_TS_PM_OPS,
},
};
-
-static int __init pcap_ts_init(void)
-{
- return platform_driver_register(&pcap_ts_driver);
-}
-
-static void __exit pcap_ts_exit(void)
-{
- platform_driver_unregister(&pcap_ts_driver);
-}
-
-module_init(pcap_ts_init);
-module_exit(pcap_ts_exit);
+module_platform_driver(pcap_ts_driver);
MODULE_DESCRIPTION("Motorola PCAP2 touchscreen driver");
MODULE_AUTHOR("Daniel Ribeiro / Harald Welte");
diff --git a/drivers/input/touchscreen/pixcir_i2c_ts.c b/drivers/input/touchscreen/pixcir_i2c_ts.c
new file mode 100644
index 000000000000..d5ac09a1ee56
--- /dev/null
+++ b/drivers/input/touchscreen/pixcir_i2c_ts.c
@@ -0,0 +1,239 @@
+/*
+ * Driver for Pixcir I2C touchscreen controllers.
+ *
+ * Copyright (C) 2010-2011 Pixcir, Inc.
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#include <linux/delay.h>
+#include <linux/module.h>
+#include <linux/interrupt.h>
+#include <linux/slab.h>
+#include <linux/i2c.h>
+#include <linux/input.h>
+#include <linux/input/pixcir_ts.h>
+
+struct pixcir_i2c_ts_data {
+ struct i2c_client *client;
+ struct input_dev *input;
+ const struct pixcir_ts_platform_data *chip;
+ bool exiting;
+};
+
+static void pixcir_ts_poscheck(struct pixcir_i2c_ts_data *data)
+{
+ struct pixcir_i2c_ts_data *tsdata = data;
+ u8 rdbuf[10], wrbuf[1] = { 0 };
+ u8 touch;
+ int ret;
+
+ ret = i2c_master_send(tsdata->client, wrbuf, sizeof(wrbuf));
+ if (ret != sizeof(wrbuf)) {
+ dev_err(&tsdata->client->dev,
+ "%s: i2c_master_send failed(), ret=%d\n",
+ __func__, ret);
+ return;
+ }
+
+ ret = i2c_master_recv(tsdata->client, rdbuf, sizeof(rdbuf));
+ if (ret != sizeof(rdbuf)) {
+ dev_err(&tsdata->client->dev,
+ "%s: i2c_master_recv failed(), ret=%d\n",
+ __func__, ret);
+ return;
+ }
+
+ touch = rdbuf[0];
+ if (touch) {
+ u16 posx1 = (rdbuf[3] << 8) | rdbuf[2];
+ u16 posy1 = (rdbuf[5] << 8) | rdbuf[4];
+ u16 posx2 = (rdbuf[7] << 8) | rdbuf[6];
+ u16 posy2 = (rdbuf[9] << 8) | rdbuf[8];
+
+ input_report_key(tsdata->input, BTN_TOUCH, 1);
+ input_report_abs(tsdata->input, ABS_X, posx1);
+ input_report_abs(tsdata->input, ABS_Y, posy1);
+
+ input_report_abs(tsdata->input, ABS_MT_POSITION_X, posx1);
+ input_report_abs(tsdata->input, ABS_MT_POSITION_Y, posy1);
+ input_mt_sync(tsdata->input);
+
+ if (touch == 2) {
+ input_report_abs(tsdata->input,
+ ABS_MT_POSITION_X, posx2);
+ input_report_abs(tsdata->input,
+ ABS_MT_POSITION_Y, posy2);
+ input_mt_sync(tsdata->input);
+ }
+ } else {
+ input_report_key(tsdata->input, BTN_TOUCH, 0);
+ }
+
+ input_sync(tsdata->input);
+}
+
+static irqreturn_t pixcir_ts_isr(int irq, void *dev_id)
+{
+ struct pixcir_i2c_ts_data *tsdata = dev_id;
+
+ while (!tsdata->exiting) {
+ pixcir_ts_poscheck(tsdata);
+
+ if (tsdata->chip->attb_read_val())
+ break;
+
+ msleep(20);
+ }
+
+ return IRQ_HANDLED;
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int pixcir_i2c_ts_suspend(struct device *dev)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+
+ if (device_may_wakeup(&client->dev))
+ enable_irq_wake(client->irq);
+
+ return 0;
+}
+
+static int pixcir_i2c_ts_resume(struct device *dev)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+
+ if (device_may_wakeup(&client->dev))
+ disable_irq_wake(client->irq);
+
+ return 0;
+}
+#endif
+
+static SIMPLE_DEV_PM_OPS(pixcir_dev_pm_ops,
+ pixcir_i2c_ts_suspend, pixcir_i2c_ts_resume);
+
+static int __devinit pixcir_i2c_ts_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ const struct pixcir_ts_platform_data *pdata = client->dev.platform_data;
+ struct pixcir_i2c_ts_data *tsdata;
+ struct input_dev *input;
+ int error;
+
+ if (!pdata) {
+ dev_err(&client->dev, "platform data not defined\n");
+ return -EINVAL;
+ }
+
+ tsdata = kzalloc(sizeof(*tsdata), GFP_KERNEL);
+ input = input_allocate_device();
+ if (!tsdata || !input) {
+ dev_err(&client->dev, "Failed to allocate driver data!\n");
+ error = -ENOMEM;
+ goto err_free_mem;
+ }
+
+ tsdata->client = client;
+ tsdata->input = input;
+ tsdata->chip = pdata;
+
+ input->name = client->name;
+ input->id.bustype = BUS_I2C;
+ input->dev.parent = &client->dev;
+
+ __set_bit(EV_KEY, input->evbit);
+ __set_bit(EV_ABS, input->evbit);
+ __set_bit(BTN_TOUCH, input->keybit);
+ input_set_abs_params(input, ABS_X, 0, pdata->x_max, 0, 0);
+ input_set_abs_params(input, ABS_Y, 0, pdata->y_max, 0, 0);
+ input_set_abs_params(input, ABS_MT_POSITION_X, 0, pdata->x_max, 0, 0);
+ input_set_abs_params(input, ABS_MT_POSITION_Y, 0, pdata->y_max, 0, 0);
+
+ input_set_drvdata(input, tsdata);
+
+ error = request_threaded_irq(client->irq, NULL, pixcir_ts_isr,
+ IRQF_TRIGGER_FALLING,
+ client->name, tsdata);
+ if (error) {
+ dev_err(&client->dev, "Unable to request touchscreen IRQ.\n");
+ goto err_free_mem;
+ }
+
+ error = input_register_device(input);
+ if (error)
+ goto err_free_irq;
+
+ i2c_set_clientdata(client, tsdata);
+ device_init_wakeup(&client->dev, 1);
+
+ return 0;
+
+err_free_irq:
+ free_irq(client->irq, tsdata);
+err_free_mem:
+ input_free_device(input);
+ kfree(tsdata);
+ return error;
+}
+
+static int __devexit pixcir_i2c_ts_remove(struct i2c_client *client)
+{
+ struct pixcir_i2c_ts_data *tsdata = i2c_get_clientdata(client);
+
+ device_init_wakeup(&client->dev, 0);
+
+ tsdata->exiting = true;
+ mb();
+ free_irq(client->irq, tsdata);
+
+ input_unregister_device(tsdata->input);
+ kfree(tsdata);
+
+ return 0;
+}
+
+static const struct i2c_device_id pixcir_i2c_ts_id[] = {
+ { "pixcir_ts", 0 },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, pixcir_i2c_ts_id);
+
+static struct i2c_driver pixcir_i2c_ts_driver = {
+ .driver = {
+ .owner = THIS_MODULE,
+ .name = "pixcir_ts",
+ .pm = &pixcir_dev_pm_ops,
+ },
+ .probe = pixcir_i2c_ts_probe,
+ .remove = __devexit_p(pixcir_i2c_ts_remove),
+ .id_table = pixcir_i2c_ts_id,
+};
+
+static int __init pixcir_i2c_ts_init(void)
+{
+ return i2c_add_driver(&pixcir_i2c_ts_driver);
+}
+module_init(pixcir_i2c_ts_init);
+
+static void __exit pixcir_i2c_ts_exit(void)
+{
+ i2c_del_driver(&pixcir_i2c_ts_driver);
+}
+module_exit(pixcir_i2c_ts_exit);
+
+MODULE_AUTHOR("Jianchun Bian <jcbian@pixcir.com.cn>, Dequan Meng <dqmeng@pixcir.com.cn>");
+MODULE_DESCRIPTION("Pixcir I2C Touchscreen Driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/input/touchscreen/s3c2410_ts.c b/drivers/input/touchscreen/s3c2410_ts.c
index 64ce697a3456..bf1a06400067 100644
--- a/drivers/input/touchscreen/s3c2410_ts.c
+++ b/drivers/input/touchscreen/s3c2410_ts.c
@@ -432,19 +432,7 @@ static struct platform_driver s3c_ts_driver = {
.probe = s3c2410ts_probe,
.remove = __devexit_p(s3c2410ts_remove),
};
-
-static int __init s3c2410ts_init(void)
-{
- return platform_driver_register(&s3c_ts_driver);
-}
-
-static void __exit s3c2410ts_exit(void)
-{
- platform_driver_unregister(&s3c_ts_driver);
-}
-
-module_init(s3c2410ts_init);
-module_exit(s3c2410ts_exit);
+module_platform_driver(s3c_ts_driver);
MODULE_AUTHOR("Arnaud Patard <arnaud.patard@rtp-net.org>, "
"Ben Dooks <ben@simtec.co.uk>, "
diff --git a/drivers/input/touchscreen/stmpe-ts.c b/drivers/input/touchscreen/stmpe-ts.c
index ae88e13c99ff..692b685720ce 100644
--- a/drivers/input/touchscreen/stmpe-ts.c
+++ b/drivers/input/touchscreen/stmpe-ts.c
@@ -379,20 +379,7 @@ static struct platform_driver stmpe_ts_driver = {
.probe = stmpe_input_probe,
.remove = __devexit_p(stmpe_ts_remove),
};
-
-static int __init stmpe_ts_init(void)
-{
- return platform_driver_register(&stmpe_ts_driver);
-}
-
-module_init(stmpe_ts_init);
-
-static void __exit stmpe_ts_exit(void)
-{
- platform_driver_unregister(&stmpe_ts_driver);
-}
-
-module_exit(stmpe_ts_exit);
+module_platform_driver(stmpe_ts_driver);
MODULE_AUTHOR("Luotao Fu <l.fu@pengutronix.de>");
MODULE_DESCRIPTION("STMPEXXX touchscreen driver");
diff --git a/drivers/input/touchscreen/tnetv107x-ts.c b/drivers/input/touchscreen/tnetv107x-ts.c
index 0e8f63e5b36f..7e7488097359 100644
--- a/drivers/input/touchscreen/tnetv107x-ts.c
+++ b/drivers/input/touchscreen/tnetv107x-ts.c
@@ -378,19 +378,7 @@ static struct platform_driver tsc_driver = {
.driver.name = "tnetv107x-ts",
.driver.owner = THIS_MODULE,
};
-
-static int __init tsc_init(void)
-{
- return platform_driver_register(&tsc_driver);
-}
-
-static void __exit tsc_exit(void)
-{
- platform_driver_unregister(&tsc_driver);
-}
-
-module_init(tsc_init);
-module_exit(tsc_exit);
+module_platform_driver(tsc_driver);
MODULE_AUTHOR("Cyril Chemparathy");
MODULE_DESCRIPTION("TNETV107X Touchscreen Driver");
diff --git a/drivers/input/touchscreen/tps6507x-ts.c b/drivers/input/touchscreen/tps6507x-ts.c
index 43031492d733..6c6f6d8ea9b4 100644
--- a/drivers/input/touchscreen/tps6507x-ts.c
+++ b/drivers/input/touchscreen/tps6507x-ts.c
@@ -371,18 +371,7 @@ static struct platform_driver tps6507x_ts_driver = {
.probe = tps6507x_ts_probe,
.remove = __devexit_p(tps6507x_ts_remove),
};
-
-static int __init tps6507x_ts_init(void)
-{
- return platform_driver_register(&tps6507x_ts_driver);
-}
-module_init(tps6507x_ts_init);
-
-static void __exit tps6507x_ts_exit(void)
-{
- platform_driver_unregister(&tps6507x_ts_driver);
-}
-module_exit(tps6507x_ts_exit);
+module_platform_driver(tps6507x_ts_driver);
MODULE_AUTHOR("Todd Fischer <todd.fischer@ridgerun.com>");
MODULE_DESCRIPTION("TPS6507x - TouchScreen driver");
diff --git a/drivers/input/touchscreen/ucb1400_ts.c b/drivers/input/touchscreen/ucb1400_ts.c
index 3b5b5df04dd6..46e83ad53f43 100644
--- a/drivers/input/touchscreen/ucb1400_ts.c
+++ b/drivers/input/touchscreen/ucb1400_ts.c
@@ -20,24 +20,24 @@
#include <linux/module.h>
#include <linux/init.h>
-#include <linux/completion.h>
#include <linux/delay.h>
+#include <linux/sched.h>
+#include <linux/wait.h>
#include <linux/input.h>
#include <linux/device.h>
#include <linux/interrupt.h>
-#include <linux/suspend.h>
-#include <linux/kthread.h>
-#include <linux/freezer.h>
#include <linux/ucb1400.h>
-static int adcsync;
+#define UCB1400_TS_POLL_PERIOD 10 /* ms */
+
+static bool adcsync;
static int ts_delay = 55; /* us */
static int ts_delay_pressure; /* us */
/* Switch to interrupt mode. */
-static inline void ucb1400_ts_mode_int(struct snd_ac97 *ac97)
+static void ucb1400_ts_mode_int(struct ucb1400_ts *ucb)
{
- ucb1400_reg_write(ac97, UCB_TS_CR,
+ ucb1400_reg_write(ucb->ac97, UCB_TS_CR,
UCB_TS_CR_TSMX_POW | UCB_TS_CR_TSPX_POW |
UCB_TS_CR_TSMY_GND | UCB_TS_CR_TSPY_GND |
UCB_TS_CR_MODE_INT);
@@ -47,13 +47,15 @@ static inline void ucb1400_ts_mode_int(struct snd_ac97 *ac97)
* Switch to pressure mode, and read pressure. We don't need to wait
* here, since both plates are being driven.
*/
-static inline unsigned int ucb1400_ts_read_pressure(struct ucb1400_ts *ucb)
+static unsigned int ucb1400_ts_read_pressure(struct ucb1400_ts *ucb)
{
ucb1400_reg_write(ucb->ac97, UCB_TS_CR,
UCB_TS_CR_TSMX_POW | UCB_TS_CR_TSPX_POW |
UCB_TS_CR_TSMY_GND | UCB_TS_CR_TSPY_GND |
UCB_TS_CR_MODE_PRES | UCB_TS_CR_BIAS_ENA);
+
udelay(ts_delay_pressure);
+
return ucb1400_adc_read(ucb->ac97, UCB_ADC_INP_TSPY, adcsync);
}
@@ -63,7 +65,7 @@ static inline unsigned int ucb1400_ts_read_pressure(struct ucb1400_ts *ucb)
* gives a faster response time. Even so, we need to wait about 55us
* for things to stabilise.
*/
-static inline unsigned int ucb1400_ts_read_xpos(struct ucb1400_ts *ucb)
+static unsigned int ucb1400_ts_read_xpos(struct ucb1400_ts *ucb)
{
ucb1400_reg_write(ucb->ac97, UCB_TS_CR,
UCB_TS_CR_TSMX_GND | UCB_TS_CR_TSPX_POW |
@@ -86,7 +88,7 @@ static inline unsigned int ucb1400_ts_read_xpos(struct ucb1400_ts *ucb)
* gives a faster response time. Even so, we need to wait about 55us
* for things to stabilise.
*/
-static inline unsigned int ucb1400_ts_read_ypos(struct ucb1400_ts *ucb)
+static int ucb1400_ts_read_ypos(struct ucb1400_ts *ucb)
{
ucb1400_reg_write(ucb->ac97, UCB_TS_CR,
UCB_TS_CR_TSMY_GND | UCB_TS_CR_TSPY_POW |
@@ -107,7 +109,7 @@ static inline unsigned int ucb1400_ts_read_ypos(struct ucb1400_ts *ucb)
* Switch to X plate resistance mode. Set MX to ground, PX to
* supply. Measure current.
*/
-static inline unsigned int ucb1400_ts_read_xres(struct ucb1400_ts *ucb)
+static unsigned int ucb1400_ts_read_xres(struct ucb1400_ts *ucb)
{
ucb1400_reg_write(ucb->ac97, UCB_TS_CR,
UCB_TS_CR_TSMX_GND | UCB_TS_CR_TSPX_POW |
@@ -119,7 +121,7 @@ static inline unsigned int ucb1400_ts_read_xres(struct ucb1400_ts *ucb)
* Switch to Y plate resistance mode. Set MY to ground, PY to
* supply. Measure current.
*/
-static inline unsigned int ucb1400_ts_read_yres(struct ucb1400_ts *ucb)
+static unsigned int ucb1400_ts_read_yres(struct ucb1400_ts *ucb)
{
ucb1400_reg_write(ucb->ac97, UCB_TS_CR,
UCB_TS_CR_TSMY_GND | UCB_TS_CR_TSPY_POW |
@@ -127,26 +129,26 @@ static inline unsigned int ucb1400_ts_read_yres(struct ucb1400_ts *ucb)
return ucb1400_adc_read(ucb->ac97, 0, adcsync);
}
-static inline int ucb1400_ts_pen_up(struct snd_ac97 *ac97)
+static int ucb1400_ts_pen_up(struct ucb1400_ts *ucb)
{
- unsigned short val = ucb1400_reg_read(ac97, UCB_TS_CR);
+ unsigned short val = ucb1400_reg_read(ucb->ac97, UCB_TS_CR);
return val & (UCB_TS_CR_TSPX_LOW | UCB_TS_CR_TSMX_LOW);
}
-static inline void ucb1400_ts_irq_enable(struct snd_ac97 *ac97)
+static void ucb1400_ts_irq_enable(struct ucb1400_ts *ucb)
{
- ucb1400_reg_write(ac97, UCB_IE_CLEAR, UCB_IE_TSPX);
- ucb1400_reg_write(ac97, UCB_IE_CLEAR, 0);
- ucb1400_reg_write(ac97, UCB_IE_FAL, UCB_IE_TSPX);
+ ucb1400_reg_write(ucb->ac97, UCB_IE_CLEAR, UCB_IE_TSPX);
+ ucb1400_reg_write(ucb->ac97, UCB_IE_CLEAR, 0);
+ ucb1400_reg_write(ucb->ac97, UCB_IE_FAL, UCB_IE_TSPX);
}
-static inline void ucb1400_ts_irq_disable(struct snd_ac97 *ac97)
+static void ucb1400_ts_irq_disable(struct ucb1400_ts *ucb)
{
- ucb1400_reg_write(ac97, UCB_IE_FAL, 0);
+ ucb1400_reg_write(ucb->ac97, UCB_IE_FAL, 0);
}
-static void ucb1400_ts_evt_add(struct input_dev *idev, u16 pressure, u16 x, u16 y)
+static void ucb1400_ts_report_event(struct input_dev *idev, u16 pressure, u16 x, u16 y)
{
input_report_abs(idev, ABS_X, x);
input_report_abs(idev, ABS_Y, y);
@@ -162,7 +164,7 @@ static void ucb1400_ts_event_release(struct input_dev *idev)
input_sync(idev);
}
-static void ucb1400_handle_pending_irq(struct ucb1400_ts *ucb)
+static void ucb1400_clear_pending_irq(struct ucb1400_ts *ucb)
{
unsigned int isr;
@@ -171,32 +173,34 @@ static void ucb1400_handle_pending_irq(struct ucb1400_ts *ucb)
ucb1400_reg_write(ucb->ac97, UCB_IE_CLEAR, 0);
if (isr & UCB_IE_TSPX)
- ucb1400_ts_irq_disable(ucb->ac97);
+ ucb1400_ts_irq_disable(ucb);
else
- dev_dbg(&ucb->ts_idev->dev, "ucb1400: unexpected IE_STATUS = %#x\n", isr);
- enable_irq(ucb->irq);
+ dev_dbg(&ucb->ts_idev->dev,
+ "ucb1400: unexpected IE_STATUS = %#x\n", isr);
}
-static int ucb1400_ts_thread(void *_ucb)
+/*
+ * A restriction with interrupts exists when using the ucb1400, as
+ * the codec read/write routines may sleep while waiting for codec
+ * access completion and uses semaphores for access control to the
+ * AC97 bus. Therefore the driver is forced to use threaded interrupt
+ * handler.
+ */
+static irqreturn_t ucb1400_irq(int irqnr, void *devid)
{
- struct ucb1400_ts *ucb = _ucb;
- struct task_struct *tsk = current;
- int valid = 0;
- struct sched_param param = { .sched_priority = 1 };
+ struct ucb1400_ts *ucb = devid;
+ unsigned int x, y, p;
+ bool penup;
- sched_setscheduler(tsk, SCHED_FIFO, &param);
+ if (unlikely(irqnr != ucb->irq))
+ return IRQ_NONE;
- set_freezable();
- while (!kthread_should_stop()) {
- unsigned int x, y, p;
- long timeout;
+ ucb1400_clear_pending_irq(ucb);
- ucb->ts_restart = 0;
+ /* Start with a small delay before checking pendown state */
+ msleep(UCB1400_TS_POLL_PERIOD);
- if (ucb->irq_pending) {
- ucb->irq_pending = 0;
- ucb1400_handle_pending_irq(ucb);
- }
+ while (!ucb->stopped && !(penup = ucb1400_ts_pen_up(ucb))) {
ucb1400_adc_enable(ucb->ac97);
x = ucb1400_ts_read_xpos(ucb);
@@ -204,91 +208,62 @@ static int ucb1400_ts_thread(void *_ucb)
p = ucb1400_ts_read_pressure(ucb);
ucb1400_adc_disable(ucb->ac97);
- /* Switch back to interrupt mode. */
- ucb1400_ts_mode_int(ucb->ac97);
-
- msleep(10);
-
- if (ucb1400_ts_pen_up(ucb->ac97)) {
- ucb1400_ts_irq_enable(ucb->ac97);
-
- /*
- * If we spat out a valid sample set last time,
- * spit out a "pen off" sample here.
- */
- if (valid) {
- ucb1400_ts_event_release(ucb->ts_idev);
- valid = 0;
- }
-
- timeout = MAX_SCHEDULE_TIMEOUT;
- } else {
- valid = 1;
- ucb1400_ts_evt_add(ucb->ts_idev, p, x, y);
- timeout = msecs_to_jiffies(10);
- }
+ ucb1400_ts_report_event(ucb->ts_idev, p, x, y);
- wait_event_freezable_timeout(ucb->ts_wait,
- ucb->irq_pending || ucb->ts_restart ||
- kthread_should_stop(), timeout);
+ wait_event_timeout(ucb->ts_wait, ucb->stopped,
+ msecs_to_jiffies(UCB1400_TS_POLL_PERIOD));
}
- /* Send the "pen off" if we are stopping with the pen still active */
- if (valid)
- ucb1400_ts_event_release(ucb->ts_idev);
+ ucb1400_ts_event_release(ucb->ts_idev);
- ucb->ts_task = NULL;
- return 0;
+ if (!ucb->stopped) {
+ /* Switch back to interrupt mode. */
+ ucb1400_ts_mode_int(ucb);
+ ucb1400_ts_irq_enable(ucb);
+ }
+
+ return IRQ_HANDLED;
}
-/*
- * A restriction with interrupts exists when using the ucb1400, as
- * the codec read/write routines may sleep while waiting for codec
- * access completion and uses semaphores for access control to the
- * AC97 bus. A complete codec read cycle could take anywhere from
- * 60 to 100uSec so we *definitely* don't want to spin inside the
- * interrupt handler waiting for codec access. So, we handle the
- * interrupt by scheduling a RT kernel thread to run in process
- * context instead of interrupt context.
- */
-static irqreturn_t ucb1400_hard_irq(int irqnr, void *devid)
+static void ucb1400_ts_stop(struct ucb1400_ts *ucb)
{
- struct ucb1400_ts *ucb = devid;
+ /* Signal IRQ thread to stop polling and disable the handler. */
+ ucb->stopped = true;
+ mb();
+ wake_up(&ucb->ts_wait);
+ disable_irq(ucb->irq);
- if (irqnr == ucb->irq) {
- disable_irq_nosync(ucb->irq);
- ucb->irq_pending = 1;
- wake_up(&ucb->ts_wait);
- return IRQ_HANDLED;
- }
- return IRQ_NONE;
+ ucb1400_ts_irq_disable(ucb);
+ ucb1400_reg_write(ucb->ac97, UCB_TS_CR, 0);
+}
+
+/* Must be called with ts->lock held */
+static void ucb1400_ts_start(struct ucb1400_ts *ucb)
+{
+ /* Tell IRQ thread that it may poll the device. */
+ ucb->stopped = false;
+ mb();
+
+ ucb1400_ts_mode_int(ucb);
+ ucb1400_ts_irq_enable(ucb);
+
+ enable_irq(ucb->irq);
}
static int ucb1400_ts_open(struct input_dev *idev)
{
struct ucb1400_ts *ucb = input_get_drvdata(idev);
- int ret = 0;
- BUG_ON(ucb->ts_task);
+ ucb1400_ts_start(ucb);
- ucb->ts_task = kthread_run(ucb1400_ts_thread, ucb, "UCB1400_ts");
- if (IS_ERR(ucb->ts_task)) {
- ret = PTR_ERR(ucb->ts_task);
- ucb->ts_task = NULL;
- }
-
- return ret;
+ return 0;
}
static void ucb1400_ts_close(struct input_dev *idev)
{
struct ucb1400_ts *ucb = input_get_drvdata(idev);
- if (ucb->ts_task)
- kthread_stop(ucb->ts_task);
-
- ucb1400_ts_irq_disable(ucb->ac97);
- ucb1400_reg_write(ucb->ac97, UCB_TS_CR, 0);
+ ucb1400_ts_stop(ucb);
}
#ifndef NO_IRQ
@@ -299,7 +274,8 @@ static void ucb1400_ts_close(struct input_dev *idev)
* Try to probe our interrupt, rather than relying on lots of
* hard-coded machine dependencies.
*/
-static int ucb1400_ts_detect_irq(struct ucb1400_ts *ucb)
+static int __devinit ucb1400_ts_detect_irq(struct ucb1400_ts *ucb,
+ struct platform_device *pdev)
{
unsigned long mask, timeout;
@@ -321,7 +297,7 @@ static int ucb1400_ts_detect_irq(struct ucb1400_ts *ucb)
UCB_ADC_DAT_VALID)) {
cpu_relax();
if (time_after(jiffies, timeout)) {
- printk(KERN_ERR "ucb1400: timed out in IRQ probe\n");
+ dev_err(&pdev->dev, "timed out in IRQ probe\n");
probe_irq_off(mask);
return -ENODEV;
}
@@ -342,11 +318,11 @@ static int ucb1400_ts_detect_irq(struct ucb1400_ts *ucb)
return 0;
}
-static int ucb1400_ts_probe(struct platform_device *dev)
+static int __devinit ucb1400_ts_probe(struct platform_device *pdev)
{
+ struct ucb1400_ts *ucb = pdev->dev.platform_data;
int error, x_res, y_res;
u16 fcsr;
- struct ucb1400_ts *ucb = dev->dev.platform_data;
ucb->ts_idev = input_allocate_device();
if (!ucb->ts_idev) {
@@ -356,27 +332,19 @@ static int ucb1400_ts_probe(struct platform_device *dev)
/* Only in case the IRQ line wasn't supplied, try detecting it */
if (ucb->irq < 0) {
- error = ucb1400_ts_detect_irq(ucb);
+ error = ucb1400_ts_detect_irq(ucb, pdev);
if (error) {
- printk(KERN_ERR "UCB1400: IRQ probe failed\n");
+ dev_err(&pdev->dev, "IRQ probe failed\n");
goto err_free_devs;
}
}
+ dev_dbg(&pdev->dev, "found IRQ %d\n", ucb->irq);
init_waitqueue_head(&ucb->ts_wait);
- error = request_irq(ucb->irq, ucb1400_hard_irq, IRQF_TRIGGER_RISING,
- "UCB1400", ucb);
- if (error) {
- printk(KERN_ERR "ucb1400: unable to grab irq%d: %d\n",
- ucb->irq, error);
- goto err_free_devs;
- }
- printk(KERN_DEBUG "UCB1400: found IRQ %d\n", ucb->irq);
-
input_set_drvdata(ucb->ts_idev, ucb);
- ucb->ts_idev->dev.parent = &dev->dev;
+ ucb->ts_idev->dev.parent = &pdev->dev;
ucb->ts_idev->name = "UCB1400 touchscreen interface";
ucb->ts_idev->id.vendor = ucb1400_reg_read(ucb->ac97,
AC97_VENDOR_ID1);
@@ -398,12 +366,23 @@ static int ucb1400_ts_probe(struct platform_device *dev)
x_res = ucb1400_ts_read_xres(ucb);
y_res = ucb1400_ts_read_yres(ucb);
ucb1400_adc_disable(ucb->ac97);
- printk(KERN_DEBUG "UCB1400: x/y = %d/%d\n", x_res, y_res);
+ dev_dbg(&pdev->dev, "x/y = %d/%d\n", x_res, y_res);
input_set_abs_params(ucb->ts_idev, ABS_X, 0, x_res, 0, 0);
input_set_abs_params(ucb->ts_idev, ABS_Y, 0, y_res, 0, 0);
input_set_abs_params(ucb->ts_idev, ABS_PRESSURE, 0, 0, 0, 0);
+ ucb1400_ts_stop(ucb);
+
+ error = request_threaded_irq(ucb->irq, NULL, ucb1400_irq,
+ IRQF_TRIGGER_RISING | IRQF_ONESHOT,
+ "UCB1400", ucb);
+ if (error) {
+ dev_err(&pdev->dev,
+ "unable to grab irq%d: %d\n", ucb->irq, error);
+ goto err_free_devs;
+ }
+
error = input_register_device(ucb->ts_idev);
if (error)
goto err_free_irq;
@@ -416,56 +395,61 @@ err_free_devs:
input_free_device(ucb->ts_idev);
err:
return error;
-
}
-static int ucb1400_ts_remove(struct platform_device *dev)
+static int __devexit ucb1400_ts_remove(struct platform_device *pdev)
{
- struct ucb1400_ts *ucb = dev->dev.platform_data;
+ struct ucb1400_ts *ucb = pdev->dev.platform_data;
free_irq(ucb->irq, ucb);
input_unregister_device(ucb->ts_idev);
+
return 0;
}
-#ifdef CONFIG_PM
-static int ucb1400_ts_resume(struct platform_device *dev)
+#ifdef CONFIG_PM_SLEEP
+static int ucb1400_ts_suspend(struct device *dev)
{
- struct ucb1400_ts *ucb = dev->dev.platform_data;
-
- if (ucb->ts_task) {
- /*
- * Restart the TS thread to ensure the
- * TS interrupt mode is set up again
- * after sleep.
- */
- ucb->ts_restart = 1;
- wake_up(&ucb->ts_wait);
- }
+ struct ucb1400_ts *ucb = dev->platform_data;
+ struct input_dev *idev = ucb->ts_idev;
+
+ mutex_lock(&idev->mutex);
+
+ if (idev->users)
+ ucb1400_ts_start(ucb);
+
+ mutex_unlock(&idev->mutex);
+ return 0;
+}
+
+static int ucb1400_ts_resume(struct device *dev)
+{
+ struct ucb1400_ts *ucb = dev->platform_data;
+ struct input_dev *idev = ucb->ts_idev;
+
+ mutex_lock(&idev->mutex);
+
+ if (idev->users)
+ ucb1400_ts_stop(ucb);
+
+ mutex_unlock(&idev->mutex);
return 0;
}
-#else
-#define ucb1400_ts_resume NULL
#endif
+static SIMPLE_DEV_PM_OPS(ucb1400_ts_pm_ops,
+ ucb1400_ts_suspend, ucb1400_ts_resume);
+
static struct platform_driver ucb1400_ts_driver = {
.probe = ucb1400_ts_probe,
- .remove = ucb1400_ts_remove,
- .resume = ucb1400_ts_resume,
+ .remove = __devexit_p(ucb1400_ts_remove),
.driver = {
.name = "ucb1400_ts",
+ .owner = THIS_MODULE,
+ .pm = &ucb1400_ts_pm_ops,
},
};
-
-static int __init ucb1400_ts_init(void)
-{
- return platform_driver_register(&ucb1400_ts_driver);
-}
-
-static void __exit ucb1400_ts_exit(void)
-{
- platform_driver_unregister(&ucb1400_ts_driver);
-}
+module_platform_driver(ucb1400_ts_driver);
module_param(adcsync, bool, 0444);
MODULE_PARM_DESC(adcsync, "Synchronize touch readings with ADCSYNC pin.");
@@ -479,8 +463,5 @@ MODULE_PARM_DESC(ts_delay_pressure,
"delay between panel setup and pressure read."
" Default = 0us.");
-module_init(ucb1400_ts_init);
-module_exit(ucb1400_ts_exit);
-
MODULE_DESCRIPTION("Philips UCB1400 touchscreen driver");
MODULE_LICENSE("GPL");
diff --git a/drivers/input/touchscreen/usbtouchscreen.c b/drivers/input/touchscreen/usbtouchscreen.c
index e539d92cc626..3a5ebf452e81 100644
--- a/drivers/input/touchscreen/usbtouchscreen.c
+++ b/drivers/input/touchscreen/usbtouchscreen.c
@@ -16,6 +16,7 @@
* - JASTEC USB touch controller/DigiTech DTR-02U
* - Zytronic capacitive touchscreen
* - NEXIO/iNexio
+ * - Elo TouchSystems 2700 IntelliTouch
*
* Copyright (C) 2004-2007 by Daniel Ritz <daniel.ritz@gmx.ch>
* Copyright (C) by Todd E. Johnson (mtouchusb.c)
@@ -59,11 +60,11 @@
#define DRIVER_AUTHOR "Daniel Ritz <daniel.ritz@gmx.ch>"
#define DRIVER_DESC "USB Touchscreen Driver"
-static int swap_xy;
+static bool swap_xy;
module_param(swap_xy, bool, 0644);
MODULE_PARM_DESC(swap_xy, "If set X and Y axes are swapped.");
-static int hwcalib_xy;
+static bool hwcalib_xy;
module_param(hwcalib_xy, bool, 0644);
MODULE_PARM_DESC(hwcalib_xy, "If set hw-calibrated X/Y are used if available");
@@ -138,6 +139,7 @@ enum {
DEVTYPE_ZYTRONIC,
DEVTYPE_TC45USB,
DEVTYPE_NEXIO,
+ DEVTYPE_ELO,
};
#define USB_DEVICE_HID_CLASS(vend, prod) \
@@ -239,6 +241,10 @@ static const struct usb_device_id usbtouch_devices[] = {
.driver_info = DEVTYPE_NEXIO},
#endif
+#ifdef CONFIG_TOUCHSCREEN_USB_ELO
+ {USB_DEVICE(0x04e7, 0x0020), .driver_info = DEVTYPE_ELO},
+#endif
+
{}
};
@@ -945,6 +951,24 @@ static int nexio_read_data(struct usbtouch_usb *usbtouch, unsigned char *pkt)
/*****************************************************************************
+ * ELO part
+ */
+
+#ifdef CONFIG_TOUCHSCREEN_USB_ELO
+
+static int elo_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[6] > 0;
+ dev->press = pkt[6];
+
+ return 1;
+}
+#endif
+
+
+/*****************************************************************************
* the different device descriptors
*/
#ifdef MULTI_PACKET
@@ -953,6 +977,18 @@ static void usbtouch_process_multi(struct usbtouch_usb *usbtouch,
#endif
static struct usbtouch_device_info usbtouch_dev_info[] = {
+#ifdef CONFIG_TOUCHSCREEN_USB_ELO
+ [DEVTYPE_ELO] = {
+ .min_xc = 0x0,
+ .max_xc = 0x0fff,
+ .min_yc = 0x0,
+ .max_yc = 0x0fff,
+ .max_press = 0xff,
+ .rept_size = 8,
+ .read_data = elo_read_data,
+ },
+#endif
+
#ifdef CONFIG_TOUCHSCREEN_USB_EGALAX
[DEVTYPE_EGALAX] = {
.min_xc = 0x0,
diff --git a/drivers/input/touchscreen/w90p910_ts.c b/drivers/input/touchscreen/w90p910_ts.c
index 217aa51135c5..9396b21d0e8f 100644
--- a/drivers/input/touchscreen/w90p910_ts.c
+++ b/drivers/input/touchscreen/w90p910_ts.c
@@ -331,19 +331,7 @@ static struct platform_driver w90x900ts_driver = {
.owner = THIS_MODULE,
},
};
-
-static int __init w90x900ts_init(void)
-{
- return platform_driver_register(&w90x900ts_driver);
-}
-
-static void __exit w90x900ts_exit(void)
-{
- platform_driver_unregister(&w90x900ts_driver);
-}
-
-module_init(w90x900ts_init);
-module_exit(w90x900ts_exit);
+module_platform_driver(w90x900ts_driver);
MODULE_AUTHOR("Wan ZongShun <mcuos.com@gmail.com>");
MODULE_DESCRIPTION("w90p910 touch screen driver!");
diff --git a/drivers/input/touchscreen/wm831x-ts.c b/drivers/input/touchscreen/wm831x-ts.c
index 9175d49d2546..4bc851a9dc3d 100644
--- a/drivers/input/touchscreen/wm831x-ts.c
+++ b/drivers/input/touchscreen/wm831x-ts.c
@@ -401,18 +401,7 @@ static struct platform_driver wm831x_ts_driver = {
.probe = wm831x_ts_probe,
.remove = __devexit_p(wm831x_ts_remove),
};
-
-static int __init wm831x_ts_init(void)
-{
- return platform_driver_register(&wm831x_ts_driver);
-}
-module_init(wm831x_ts_init);
-
-static void __exit wm831x_ts_exit(void)
-{
- platform_driver_unregister(&wm831x_ts_driver);
-}
-module_exit(wm831x_ts_exit);
+module_platform_driver(wm831x_ts_driver);
/* Module information */
MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
diff --git a/drivers/input/touchscreen/zylonite-wm97xx.c b/drivers/input/touchscreen/zylonite-wm97xx.c
index 0a707bbbbea6..bf0869a7a78e 100644
--- a/drivers/input/touchscreen/zylonite-wm97xx.c
+++ b/drivers/input/touchscreen/zylonite-wm97xx.c
@@ -224,19 +224,7 @@ static struct platform_driver zylonite_wm97xx_driver = {
.name = "wm97xx-touch",
},
};
-
-static int __init zylonite_wm97xx_init(void)
-{
- return platform_driver_register(&zylonite_wm97xx_driver);
-}
-
-static void __exit zylonite_wm97xx_exit(void)
-{
- platform_driver_unregister(&zylonite_wm97xx_driver);
-}
-
-module_init(zylonite_wm97xx_init);
-module_exit(zylonite_wm97xx_exit);
+module_platform_driver(zylonite_wm97xx_driver);
/* Module information */
MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");