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-rw-r--r--drivers/input/touchscreen/88pm860x-ts.c236
-rw-r--r--drivers/input/touchscreen/Kconfig18
-rw-r--r--drivers/input/touchscreen/Makefile1
-rw-r--r--drivers/input/touchscreen/ads7846.c28
-rw-r--r--drivers/input/touchscreen/elo.c225
-rw-r--r--drivers/input/touchscreen/mainstone-wm97xx.c3
-rw-r--r--drivers/input/touchscreen/mc13783_ts.c4
-rw-r--r--drivers/input/touchscreen/s3c2410_ts.c31
-rw-r--r--drivers/input/touchscreen/tsc2007.c2
-rw-r--r--drivers/input/touchscreen/usbtouchscreen.c317
-rw-r--r--drivers/input/touchscreen/zylonite-wm97xx.c3
11 files changed, 726 insertions, 142 deletions
diff --git a/drivers/input/touchscreen/88pm860x-ts.c b/drivers/input/touchscreen/88pm860x-ts.c
new file mode 100644
index 000000000000..286bb490a9f2
--- /dev/null
+++ b/drivers/input/touchscreen/88pm860x-ts.c
@@ -0,0 +1,236 @@
+/*
+ * Touchscreen driver for Marvell 88PM860x
+ *
+ * Copyright (C) 2009 Marvell International Ltd.
+ * Haojian Zhuang <haojian.zhuang@marvell.com>
+ *
+ * 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.
+ */
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/i2c.h>
+#include <linux/input.h>
+#include <linux/mfd/88pm860x.h>
+
+#define MEAS_LEN (8)
+#define ACCURATE_BIT (12)
+
+/* touch register */
+#define MEAS_EN3 (0x52)
+
+#define MEAS_TSIX_1 (0x8D)
+#define MEAS_TSIX_2 (0x8E)
+#define MEAS_TSIY_1 (0x8F)
+#define MEAS_TSIY_2 (0x90)
+#define MEAS_TSIZ1_1 (0x91)
+#define MEAS_TSIZ1_2 (0x92)
+#define MEAS_TSIZ2_1 (0x93)
+#define MEAS_TSIZ2_2 (0x94)
+
+/* bit definitions of touch */
+#define MEAS_PD_EN (1 << 3)
+#define MEAS_TSIX_EN (1 << 4)
+#define MEAS_TSIY_EN (1 << 5)
+#define MEAS_TSIZ1_EN (1 << 6)
+#define MEAS_TSIZ2_EN (1 << 7)
+
+struct pm860x_touch {
+ struct input_dev *idev;
+ struct i2c_client *i2c;
+ struct pm860x_chip *chip;
+ int irq;
+ int res_x; /* resistor of Xplate */
+};
+
+static irqreturn_t pm860x_touch_handler(int irq, void *data)
+{
+ struct pm860x_touch *touch = data;
+ struct pm860x_chip *chip = touch->chip;
+ unsigned char buf[MEAS_LEN];
+ int x, y, pen_down;
+ int z1, z2, rt = 0;
+ int ret;
+
+ ret = pm860x_bulk_read(touch->i2c, MEAS_TSIX_1, MEAS_LEN, buf);
+ if (ret < 0)
+ goto out;
+
+ pen_down = buf[1] & (1 << 6);
+ x = ((buf[0] & 0xFF) << 4) | (buf[1] & 0x0F);
+ y = ((buf[2] & 0xFF) << 4) | (buf[3] & 0x0F);
+ z1 = ((buf[4] & 0xFF) << 4) | (buf[5] & 0x0F);
+ z2 = ((buf[6] & 0xFF) << 4) | (buf[7] & 0x0F);
+
+ if (pen_down) {
+ if ((x != 0) && (z1 != 0) && (touch->res_x != 0)) {
+ rt = z2 / z1 - 1;
+ rt = (rt * touch->res_x * x) >> ACCURATE_BIT;
+ dev_dbg(chip->dev, "z1:%d, z2:%d, rt:%d\n",
+ z1, z2, rt);
+ }
+ input_report_abs(touch->idev, ABS_X, x);
+ input_report_abs(touch->idev, ABS_Y, y);
+ input_report_abs(touch->idev, ABS_PRESSURE, rt);
+ input_report_key(touch->idev, BTN_TOUCH, 1);
+ dev_dbg(chip->dev, "pen down at [%d, %d].\n", x, y);
+ } else {
+ input_report_abs(touch->idev, ABS_PRESSURE, 0);
+ input_report_key(touch->idev, BTN_TOUCH, 0);
+ dev_dbg(chip->dev, "pen release\n");
+ }
+ input_sync(touch->idev);
+
+out:
+ return IRQ_HANDLED;
+}
+
+static int pm860x_touch_open(struct input_dev *dev)
+{
+ struct pm860x_touch *touch = input_get_drvdata(dev);
+ int data, ret;
+
+ data = MEAS_PD_EN | MEAS_TSIX_EN | MEAS_TSIY_EN
+ | MEAS_TSIZ1_EN | MEAS_TSIZ2_EN;
+ ret = pm860x_set_bits(touch->i2c, MEAS_EN3, data, data);
+ if (ret < 0)
+ goto out;
+ return 0;
+out:
+ return ret;
+}
+
+static void pm860x_touch_close(struct input_dev *dev)
+{
+ struct pm860x_touch *touch = input_get_drvdata(dev);
+ int data;
+
+ data = MEAS_PD_EN | MEAS_TSIX_EN | MEAS_TSIY_EN
+ | MEAS_TSIZ1_EN | MEAS_TSIZ2_EN;
+ pm860x_set_bits(touch->i2c, MEAS_EN3, data, 0);
+}
+
+static int __devinit pm860x_touch_probe(struct platform_device *pdev)
+{
+ struct pm860x_chip *chip = dev_get_drvdata(pdev->dev.parent);
+ struct pm860x_platform_data *pm860x_pdata = \
+ pdev->dev.parent->platform_data;
+ struct pm860x_touch_pdata *pdata = NULL;
+ struct pm860x_touch *touch;
+ int irq, ret;
+
+ irq = platform_get_irq(pdev, 0);
+ if (irq < 0) {
+ dev_err(&pdev->dev, "No IRQ resource!\n");
+ return -EINVAL;
+ }
+
+ if (!pm860x_pdata) {
+ dev_err(&pdev->dev, "platform data is missing\n");
+ return -EINVAL;
+ }
+
+ pdata = pm860x_pdata->touch;
+ if (!pdata) {
+ dev_err(&pdev->dev, "touchscreen data is missing\n");
+ return -EINVAL;
+ }
+
+ touch = kzalloc(sizeof(struct pm860x_touch), GFP_KERNEL);
+ if (touch == NULL)
+ return -ENOMEM;
+ dev_set_drvdata(&pdev->dev, touch);
+
+ touch->idev = input_allocate_device();
+ if (touch->idev == NULL) {
+ dev_err(&pdev->dev, "Failed to allocate input device!\n");
+ ret = -ENOMEM;
+ goto out;
+ }
+
+ touch->idev->name = "88pm860x-touch";
+ touch->idev->phys = "88pm860x/input0";
+ touch->idev->id.bustype = BUS_I2C;
+ touch->idev->dev.parent = &pdev->dev;
+ touch->idev->open = pm860x_touch_open;
+ touch->idev->close = pm860x_touch_close;
+ touch->chip = chip;
+ touch->i2c = (chip->id == CHIP_PM8607) ? chip->client : chip->companion;
+ touch->irq = irq + chip->irq_base;
+ touch->res_x = pdata->res_x;
+ input_set_drvdata(touch->idev, touch);
+
+ ret = request_threaded_irq(touch->irq, NULL, pm860x_touch_handler,
+ IRQF_ONESHOT, "touch", touch);
+ if (ret < 0)
+ goto out_irq;
+
+ __set_bit(EV_ABS, touch->idev->evbit);
+ __set_bit(ABS_X, touch->idev->absbit);
+ __set_bit(ABS_Y, touch->idev->absbit);
+ __set_bit(ABS_PRESSURE, touch->idev->absbit);
+ __set_bit(EV_SYN, touch->idev->evbit);
+ __set_bit(EV_KEY, touch->idev->evbit);
+ __set_bit(BTN_TOUCH, touch->idev->keybit);
+
+ input_set_abs_params(touch->idev, ABS_X, 0, 1 << ACCURATE_BIT, 0, 0);
+ input_set_abs_params(touch->idev, ABS_Y, 0, 1 << ACCURATE_BIT, 0, 0);
+ input_set_abs_params(touch->idev, ABS_PRESSURE, 0, 1 << ACCURATE_BIT,
+ 0, 0);
+
+ ret = input_register_device(touch->idev);
+ if (ret < 0) {
+ dev_err(chip->dev, "Failed to register touch!\n");
+ goto out_rg;
+ }
+
+ platform_set_drvdata(pdev, touch);
+ return 0;
+out_rg:
+ free_irq(touch->irq, touch);
+out_irq:
+ input_free_device(touch->idev);
+out:
+ kfree(touch);
+ return ret;
+}
+
+static int __devexit pm860x_touch_remove(struct platform_device *pdev)
+{
+ struct pm860x_touch *touch = platform_get_drvdata(pdev);
+
+ input_unregister_device(touch->idev);
+ free_irq(touch->irq, touch);
+ platform_set_drvdata(pdev, NULL);
+ kfree(touch);
+ return 0;
+}
+
+static struct platform_driver pm860x_touch_driver = {
+ .driver = {
+ .name = "88pm860x-touch",
+ .owner = THIS_MODULE,
+ },
+ .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_DESCRIPTION("Touchscreen driver for Marvell Semiconductor 88PM860x");
+MODULE_AUTHOR("Haojian Zhuang <haojian.zhuang@marvell.com>");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:88pm860x-touch");
+
diff --git a/drivers/input/touchscreen/Kconfig b/drivers/input/touchscreen/Kconfig
index dfafc76da4fb..7208654a94ae 100644
--- a/drivers/input/touchscreen/Kconfig
+++ b/drivers/input/touchscreen/Kconfig
@@ -11,6 +11,18 @@ menuconfig INPUT_TOUCHSCREEN
if INPUT_TOUCHSCREEN
+config TOUCHSCREEN_88PM860X
+ tristate "Marvell 88PM860x touchscreen"
+ depends on MFD_88PM860X
+ help
+ Say Y here if you have a 88PM860x PMIC and want to enable
+ support for the built-in touchscreen.
+
+ If unsure, say N.
+
+ To compile this driver as a module, choose M here: the
+ module will be called 88pm860x-ts.
+
config TOUCHSCREEN_ADS7846
tristate "ADS7846/TSC2046 and ADS7843 based touchscreens"
depends on SPI_MASTER
@@ -90,7 +102,6 @@ config TOUCHSCREEN_CORGI
tristate "SharpSL (Corgi and Spitz series) touchscreen driver (DEPRECATED)"
depends on PXA_SHARPSL
select CORGI_SSP_DEPRECATED
- default y
help
Say Y here to enable the driver for the touchscreen on the
Sharp SL-C7xx and SL-Cxx00 series of PDAs.
@@ -537,6 +548,11 @@ config TOUCHSCREEN_USB_ETT_TC5UH
bool "ET&T TC5UH touchscreen controler support" if EMBEDDED
depends on TOUCHSCREEN_USB_COMPOSITE
+config TOUCHSCREEN_USB_NEXIO
+ default y
+ bool "NEXIO/iNexio device support" if EMBEDDED
+ depends on TOUCHSCREEN_USB_COMPOSITE
+
config TOUCHSCREEN_TOUCHIT213
tristate "Sahara TouchIT-213 touchscreen"
select SERIO
diff --git a/drivers/input/touchscreen/Makefile b/drivers/input/touchscreen/Makefile
index d61a3b4def9a..7fef7d5cca23 100644
--- a/drivers/input/touchscreen/Makefile
+++ b/drivers/input/touchscreen/Makefile
@@ -6,6 +6,7 @@
wm97xx-ts-y := wm97xx-core.o
+obj-$(CONFIG_TOUCHSCREEN_88PM860X) += 88pm860x-ts.o
obj-$(CONFIG_TOUCHSCREEN_AD7877) += ad7877.o
obj-$(CONFIG_TOUCHSCREEN_AD7879) += ad7879.o
obj-$(CONFIG_TOUCHSCREEN_ADS7846) += ads7846.o
diff --git a/drivers/input/touchscreen/ads7846.c b/drivers/input/touchscreen/ads7846.c
index 52d2ca147d8f..8b05d8e97543 100644
--- a/drivers/input/touchscreen/ads7846.c
+++ b/drivers/input/touchscreen/ads7846.c
@@ -27,6 +27,7 @@
#include <linux/gpio.h>
#include <linux/spi/spi.h>
#include <linux/spi/ads7846.h>
+#include <linux/regulator/consumer.h>
#include <asm/irq.h>
/*
@@ -85,6 +86,7 @@ struct ads7846 {
char name[32];
struct spi_device *spi;
+ struct regulator *reg;
#if defined(CONFIG_HWMON) || defined(CONFIG_HWMON_MODULE)
struct attribute_group *attr_group;
@@ -788,6 +790,8 @@ static void ads7846_disable(struct ads7846 *ts)
}
}
+ regulator_disable(ts->reg);
+
/* we know the chip's in lowpower mode since we always
* leave it that way after every request
*/
@@ -799,6 +803,8 @@ static void ads7846_enable(struct ads7846 *ts)
if (!ts->disabled)
return;
+ regulator_enable(ts->reg);
+
ts->disabled = 0;
ts->irq_disabled = 0;
enable_irq(ts->spi->irq);
@@ -1139,6 +1145,19 @@ static int __devinit ads7846_probe(struct spi_device *spi)
ts->last_msg = m;
+ ts->reg = regulator_get(&spi->dev, "vcc");
+ if (IS_ERR(ts->reg)) {
+ dev_err(&spi->dev, "unable to get regulator: %ld\n",
+ PTR_ERR(ts->reg));
+ goto err_free_gpio;
+ }
+
+ err = regulator_enable(ts->reg);
+ if (err) {
+ dev_err(&spi->dev, "unable to enable regulator: %d\n", err);
+ goto err_put_regulator;
+ }
+
if (request_irq(spi->irq, ads7846_irq, IRQF_TRIGGER_FALLING,
spi->dev.driver->name, ts)) {
dev_info(&spi->dev,
@@ -1148,7 +1167,7 @@ static int __devinit ads7846_probe(struct spi_device *spi)
spi->dev.driver->name, ts);
if (err) {
dev_dbg(&spi->dev, "irq %d busy?\n", spi->irq);
- goto err_free_gpio;
+ goto err_disable_regulator;
}
}
@@ -1180,6 +1199,10 @@ static int __devinit ads7846_probe(struct spi_device *spi)
ads784x_hwmon_unregister(spi, ts);
err_free_irq:
free_irq(spi->irq, ts);
+ err_disable_regulator:
+ regulator_disable(ts->reg);
+ err_put_regulator:
+ regulator_put(ts->reg);
err_free_gpio:
if (ts->gpio_pendown != -1)
gpio_free(ts->gpio_pendown);
@@ -1208,6 +1231,9 @@ static int __devexit ads7846_remove(struct spi_device *spi)
/* suspend left the IRQ disabled */
enable_irq(ts->spi->irq);
+ regulator_disable(ts->reg);
+ regulator_put(ts->reg);
+
if (ts->gpio_pendown != -1)
gpio_free(ts->gpio_pendown);
diff --git a/drivers/input/touchscreen/elo.c b/drivers/input/touchscreen/elo.c
index 8f38c5e55ce6..486d31ba9c09 100644
--- a/drivers/input/touchscreen/elo.c
+++ b/drivers/input/touchscreen/elo.c
@@ -72,45 +72,49 @@ static void elo_process_data_10(struct elo *elo, unsigned char data)
struct input_dev *dev = elo->dev;
elo->data[elo->idx] = data;
- switch (elo->idx++) {
- case 0:
- elo->csum = 0xaa;
- if (data != ELO10_LEAD_BYTE) {
- pr_debug("elo: unsynchronized data: 0x%02x\n", data);
- elo->idx = 0;
- }
- break;
- case 9:
+ switch (elo->idx++) {
+ case 0:
+ elo->csum = 0xaa;
+ if (data != ELO10_LEAD_BYTE) {
+ dev_dbg(&elo->serio->dev,
+ "unsynchronized data: 0x%02x\n", data);
elo->idx = 0;
- if (data != elo->csum) {
- pr_debug("elo: bad checksum: 0x%02x, expected 0x%02x\n",
- data, elo->csum);
- break;
- }
- if (elo->data[1] != elo->expected_packet) {
- if (elo->data[1] != ELO10_TOUCH_PACKET)
- pr_debug("elo: unexpected packet: 0x%02x\n",
- elo->data[1]);
- break;
- }
- if (likely(elo->data[1] == ELO10_TOUCH_PACKET)) {
- input_report_abs(dev, ABS_X, (elo->data[4] << 8) | elo->data[3]);
- input_report_abs(dev, ABS_Y, (elo->data[6] << 8) | elo->data[5]);
- if (elo->data[2] & ELO10_PRESSURE)
- input_report_abs(dev, ABS_PRESSURE,
- (elo->data[8] << 8) | elo->data[7]);
- input_report_key(dev, BTN_TOUCH, elo->data[2] & ELO10_TOUCH);
- input_sync(dev);
- } else if (elo->data[1] == ELO10_ACK_PACKET) {
- if (elo->data[2] == '0')
- elo->expected_packet = ELO10_TOUCH_PACKET;
- complete(&elo->cmd_done);
- } else {
- memcpy(elo->response, &elo->data[1], ELO10_PACKET_LEN);
- elo->expected_packet = ELO10_ACK_PACKET;
- }
+ }
+ break;
+
+ case 9:
+ elo->idx = 0;
+ if (data != elo->csum) {
+ dev_dbg(&elo->serio->dev,
+ "bad checksum: 0x%02x, expected 0x%02x\n",
+ data, elo->csum);
+ break;
+ }
+ if (elo->data[1] != elo->expected_packet) {
+ if (elo->data[1] != ELO10_TOUCH_PACKET)
+ dev_dbg(&elo->serio->dev,
+ "unexpected packet: 0x%02x\n",
+ elo->data[1]);
break;
+ }
+ if (likely(elo->data[1] == ELO10_TOUCH_PACKET)) {
+ input_report_abs(dev, ABS_X, (elo->data[4] << 8) | elo->data[3]);
+ input_report_abs(dev, ABS_Y, (elo->data[6] << 8) | elo->data[5]);
+ if (elo->data[2] & ELO10_PRESSURE)
+ input_report_abs(dev, ABS_PRESSURE,
+ (elo->data[8] << 8) | elo->data[7]);
+ input_report_key(dev, BTN_TOUCH, elo->data[2] & ELO10_TOUCH);
+ input_sync(dev);
+ } else if (elo->data[1] == ELO10_ACK_PACKET) {
+ if (elo->data[2] == '0')
+ elo->expected_packet = ELO10_TOUCH_PACKET;
+ complete(&elo->cmd_done);
+ } else {
+ memcpy(elo->response, &elo->data[1], ELO10_PACKET_LEN);
+ elo->expected_packet = ELO10_ACK_PACKET;
+ }
+ break;
}
elo->csum += data;
}
@@ -123,42 +127,53 @@ static void elo_process_data_6(struct elo *elo, unsigned char data)
switch (elo->idx++) {
- case 0: if ((data & 0xc0) != 0xc0) elo->idx = 0; break;
- case 1: if ((data & 0xc0) != 0x80) elo->idx = 0; break;
- case 2: if ((data & 0xc0) != 0x40) elo->idx = 0; break;
-
- case 3:
- if (data & 0xc0) {
- elo->idx = 0;
- break;
- }
+ case 0:
+ if ((data & 0xc0) != 0xc0)
+ elo->idx = 0;
+ break;
- input_report_abs(dev, ABS_X, ((elo->data[0] & 0x3f) << 6) | (elo->data[1] & 0x3f));
- input_report_abs(dev, ABS_Y, ((elo->data[2] & 0x3f) << 6) | (elo->data[3] & 0x3f));
+ case 1:
+ if ((data & 0xc0) != 0x80)
+ elo->idx = 0;
+ break;
- if (elo->id == 2) {
- input_report_key(dev, BTN_TOUCH, 1);
- input_sync(dev);
- elo->idx = 0;
- }
+ case 2:
+ if ((data & 0xc0) != 0x40)
+ elo->idx = 0;
+ break;
+ case 3:
+ if (data & 0xc0) {
+ elo->idx = 0;
break;
+ }
- case 4:
- if (data) {
- input_sync(dev);
- elo->idx = 0;
- }
- break;
+ input_report_abs(dev, ABS_X, ((elo->data[0] & 0x3f) << 6) | (elo->data[1] & 0x3f));
+ input_report_abs(dev, ABS_Y, ((elo->data[2] & 0x3f) << 6) | (elo->data[3] & 0x3f));
- case 5:
- if ((data & 0xf0) == 0) {
- input_report_abs(dev, ABS_PRESSURE, elo->data[5]);
- input_report_key(dev, BTN_TOUCH, !!elo->data[5]);
- }
+ if (elo->id == 2) {
+ input_report_key(dev, BTN_TOUCH, 1);
input_sync(dev);
elo->idx = 0;
- break;
+ }
+
+ break;
+
+ case 4:
+ if (data) {
+ input_sync(dev);
+ elo->idx = 0;
+ }
+ break;
+
+ case 5:
+ if ((data & 0xf0) == 0) {
+ input_report_abs(dev, ABS_PRESSURE, elo->data[5]);
+ input_report_key(dev, BTN_TOUCH, !!elo->data[5]);
+ }
+ input_sync(dev);
+ elo->idx = 0;
+ break;
}
}
@@ -170,17 +185,17 @@ static void elo_process_data_3(struct elo *elo, unsigned char data)
switch (elo->idx++) {
- case 0:
- if ((data & 0x7f) != 0x01)
- elo->idx = 0;
- break;
- case 2:
- input_report_key(dev, BTN_TOUCH, !(elo->data[1] & 0x80));
- input_report_abs(dev, ABS_X, elo->data[1]);
- input_report_abs(dev, ABS_Y, elo->data[2]);
- input_sync(dev);
+ case 0:
+ if ((data & 0x7f) != 0x01)
elo->idx = 0;
- break;
+ break;
+ case 2:
+ input_report_key(dev, BTN_TOUCH, !(elo->data[1] & 0x80));
+ input_report_abs(dev, ABS_X, elo->data[1]);
+ input_report_abs(dev, ABS_Y, elo->data[2]);
+ input_sync(dev);
+ elo->idx = 0;
+ break;
}
}
@@ -189,19 +204,19 @@ static irqreturn_t elo_interrupt(struct serio *serio,
{
struct elo *elo = serio_get_drvdata(serio);
- switch(elo->id) {
- case 0:
- elo_process_data_10(elo, data);
- break;
-
- case 1:
- case 2:
- elo_process_data_6(elo, data);
- break;
-
- case 3:
- elo_process_data_3(elo, data);
- break;
+ switch (elo->id) {
+ case 0:
+ elo_process_data_10(elo, data);
+ break;
+
+ case 1:
+ case 2:
+ elo_process_data_6(elo, data);
+ break;
+
+ case 3:
+ elo_process_data_3(elo, data);
+ break;
}
return IRQ_HANDLED;
@@ -261,10 +276,10 @@ static int elo_setup_10(struct elo *elo)
if (packet[3] & ELO10_PRESSURE)
input_set_abs_params(dev, ABS_PRESSURE, 0, 255, 0, 0);
- printk(KERN_INFO "elo: %sTouch touchscreen, fw: %02x.%02x, "
- "features: 0x%02x, controller: 0x%02x\n",
- elo_types[(packet[1] -'0') & 0x03],
- packet[5], packet[4], packet[3], packet[7]);
+ dev_info(&elo->serio->dev,
+ "%sTouch touchscreen, fw: %02x.%02x, features: 0x%02x, controller: 0x%02x\n",
+ elo_types[(packet[1] -'0') & 0x03],
+ packet[5], packet[4], packet[3], packet[7]);
return 0;
}
@@ -330,24 +345,24 @@ static int elo_connect(struct serio *serio, struct serio_driver *drv)
switch (elo->id) {
- case 0: /* 10-byte protocol */
- if (elo_setup_10(elo))
- goto fail3;
+ case 0: /* 10-byte protocol */
+ if (elo_setup_10(elo))
+ goto fail3;
- break;
+ break;
- case 1: /* 6-byte protocol */
- input_set_abs_params(input_dev, ABS_PRESSURE, 0, 15, 0, 0);
+ case 1: /* 6-byte protocol */
+ input_set_abs_params(input_dev, ABS_PRESSURE, 0, 15, 0, 0);
- case 2: /* 4-byte protocol */
- input_set_abs_params(input_dev, ABS_X, 96, 4000, 0, 0);
- input_set_abs_params(input_dev, ABS_Y, 96, 4000, 0, 0);
- break;
+ case 2: /* 4-byte protocol */
+ input_set_abs_params(input_dev, ABS_X, 96, 4000, 0, 0);
+ input_set_abs_params(input_dev, ABS_Y, 96, 4000, 0, 0);
+ break;
- case 3: /* 3-byte protocol */
- input_set_abs_params(input_dev, ABS_X, 0, 255, 0, 0);
- input_set_abs_params(input_dev, ABS_Y, 0, 255, 0, 0);
- break;
+ case 3: /* 3-byte protocol */
+ input_set_abs_params(input_dev, ABS_X, 0, 255, 0, 0);
+ input_set_abs_params(input_dev, ABS_Y, 0, 255, 0, 0);
+ break;
}
err = input_register_device(elo->dev);
diff --git a/drivers/input/touchscreen/mainstone-wm97xx.c b/drivers/input/touchscreen/mainstone-wm97xx.c
index 6cdcf2a6e036..b6b8b1c7ecea 100644
--- a/drivers/input/touchscreen/mainstone-wm97xx.c
+++ b/drivers/input/touchscreen/mainstone-wm97xx.c
@@ -153,6 +153,9 @@ static int wm97xx_acc_pen_down(struct wm97xx *wm)
if (pressure)
p = MODR;
+ dev_dbg(wm->dev, "Raw coordinates: x=%x, y=%x, p=%x\n",
+ x, y, p);
+
/* are samples valid */
if ((x & WM97XX_ADCSRC_MASK) != WM97XX_ADCSEL_X ||
(y & WM97XX_ADCSRC_MASK) != WM97XX_ADCSEL_Y ||
diff --git a/drivers/input/touchscreen/mc13783_ts.c b/drivers/input/touchscreen/mc13783_ts.c
index be115b3b65eb..be54fd639aca 100644
--- a/drivers/input/touchscreen/mc13783_ts.c
+++ b/drivers/input/touchscreen/mc13783_ts.c
@@ -44,7 +44,7 @@ static irqreturn_t mc13783_ts_handler(int irq, void *data)
{
struct mc13783_ts_priv *priv = data;
- mc13783_ackirq(priv->mc13783, irq);
+ mc13783_irq_ack(priv->mc13783, irq);
/*
* Kick off reading coordinates. Note that if work happens already
@@ -135,7 +135,7 @@ static int mc13783_ts_open(struct input_dev *dev)
mc13783_lock(priv->mc13783);
- mc13783_ackirq(priv->mc13783, MC13783_IRQ_TS);
+ mc13783_irq_ack(priv->mc13783, MC13783_IRQ_TS);
ret = mc13783_irq_request(priv->mc13783, MC13783_IRQ_TS,
mc13783_ts_handler, MC13783_TS_NAME, priv);
diff --git a/drivers/input/touchscreen/s3c2410_ts.c b/drivers/input/touchscreen/s3c2410_ts.c
index 6386b441ef85..3755a47d053c 100644
--- a/drivers/input/touchscreen/s3c2410_ts.c
+++ b/drivers/input/touchscreen/s3c2410_ts.c
@@ -128,27 +128,29 @@ static void touch_timer_fire(unsigned long data)
down = get_down(data0, data1);
- if (ts.count == (1 << ts.shift)) {
- ts.xp >>= ts.shift;
- ts.yp >>= ts.shift;
+ if (down) {
+ if (ts.count == (1 << ts.shift)) {
+ ts.xp >>= ts.shift;
+ ts.yp >>= ts.shift;
- dev_dbg(ts.dev, "%s: X=%lu, Y=%lu, count=%d\n",
- __func__, ts.xp, ts.yp, ts.count);
+ dev_dbg(ts.dev, "%s: X=%lu, Y=%lu, count=%d\n",
+ __func__, ts.xp, ts.yp, ts.count);
- input_report_abs(ts.input, ABS_X, ts.xp);
- input_report_abs(ts.input, ABS_Y, ts.yp);
+ input_report_abs(ts.input, ABS_X, ts.xp);
+ input_report_abs(ts.input, ABS_Y, ts.yp);
- input_report_key(ts.input, BTN_TOUCH, 1);
- input_sync(ts.input);
+ input_report_key(ts.input, BTN_TOUCH, 1);
+ input_sync(ts.input);
- ts.xp = 0;
- ts.yp = 0;
- ts.count = 0;
- }
+ ts.xp = 0;
+ ts.yp = 0;
+ ts.count = 0;
+ }
- if (down) {
s3c_adc_start(ts.client, 0, 1 << ts.shift);
} else {
+ ts.xp = 0;
+ ts.yp = 0;
ts.count = 0;
input_report_key(ts.input, BTN_TOUCH, 0);
@@ -401,6 +403,7 @@ static int s3c2410ts_resume(struct device *dev)
struct s3c2410_ts_mach_info *info = pdev->dev.platform_data;
clk_enable(ts.clock);
+ enable_irq(ts.irq_tc);
/* Initialise registers */
if ((info->delay & 0xffff) > 0)
diff --git a/drivers/input/touchscreen/tsc2007.c b/drivers/input/touchscreen/tsc2007.c
index 7ef0d1420d3c..be23780e8a3e 100644
--- a/drivers/input/touchscreen/tsc2007.c
+++ b/drivers/input/touchscreen/tsc2007.c
@@ -358,7 +358,7 @@ static int __devexit tsc2007_remove(struct i2c_client *client)
return 0;
}
-static struct i2c_device_id tsc2007_idtable[] = {
+static const struct i2c_device_id tsc2007_idtable[] = {
{ "tsc2007", 0 },
{ }
};
diff --git a/drivers/input/touchscreen/usbtouchscreen.c b/drivers/input/touchscreen/usbtouchscreen.c
index 5256123a5228..99330bbdbac7 100644
--- a/drivers/input/touchscreen/usbtouchscreen.c
+++ b/drivers/input/touchscreen/usbtouchscreen.c
@@ -15,6 +15,7 @@
* - GoTop Super_Q2/GogoPen/PenPower tablets
* - JASTEC USB touch controller/DigiTech DTR-02U
* - Zytronic capacitive touchscreen
+ * - NEXIO/iNexio
*
* Copyright (C) 2004-2007 by Daniel Ritz <daniel.ritz@gmx.ch>
* Copyright (C) by Todd E. Johnson (mtouchusb.c)
@@ -95,6 +96,7 @@ struct usbtouch_device_info {
int (*read_data) (struct usbtouch_usb *usbtouch, unsigned char *pkt);
int (*init) (struct usbtouch_usb *usbtouch);
+ void (*exit) (struct usbtouch_usb *usbtouch);
};
/* a usbtouch device */
@@ -104,11 +106,12 @@ struct usbtouch_usb {
unsigned char *buffer;
int buf_len;
struct urb *irq;
- struct usb_device *udev;
+ struct usb_interface *interface;
struct input_dev *input;
struct usbtouch_device_info *type;
char name[128];
char phys[64];
+ void *priv;
int x, y;
int touch, press;
@@ -133,6 +136,7 @@ enum {
DEVTYPE_E2I,
DEVTYPE_ZYTRONIC,
DEVTYPE_TC5UH,
+ DEVTYPE_NEXIO,
};
#define USB_DEVICE_HID_CLASS(vend, prod) \
@@ -144,7 +148,7 @@ enum {
.bInterfaceClass = USB_INTERFACE_CLASS_HID, \
.bInterfaceProtocol = USB_INTERFACE_PROTOCOL_MOUSE
-static struct usb_device_id usbtouch_devices[] = {
+static const struct usb_device_id usbtouch_devices[] = {
#ifdef CONFIG_TOUCHSCREEN_USB_EGALAX
/* ignore the HID capable devices, handled by usbhid */
{USB_DEVICE_HID_CLASS(0x0eef, 0x0001), .driver_info = DEVTYPE_IGNORE},
@@ -222,6 +226,14 @@ static struct usb_device_id usbtouch_devices[] = {
{USB_DEVICE(0x0664, 0x0309), .driver_info = DEVTYPE_TC5UH},
#endif
+#ifdef CONFIG_TOUCHSCREEN_USB_NEXIO
+ /* data interface only */
+ {USB_DEVICE_AND_INTERFACE_INFO(0x10f0, 0x2002, 0x0a, 0x00, 0x00),
+ .driver_info = DEVTYPE_NEXIO},
+ {USB_DEVICE_AND_INTERFACE_INFO(0x1870, 0x0001, 0x0a, 0x00, 0x00),
+ .driver_info = DEVTYPE_NEXIO},
+#endif
+
{}
};
@@ -234,8 +246,9 @@ static struct usb_device_id usbtouch_devices[] = {
static int e2i_init(struct usbtouch_usb *usbtouch)
{
int ret;
+ struct usb_device *udev = interface_to_usbdev(usbtouch->interface);
- ret = usb_control_msg(usbtouch->udev, usb_rcvctrlpipe(usbtouch->udev, 0),
+ ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
0x01, 0x02, 0x0000, 0x0081,
NULL, 0, USB_CTRL_SET_TIMEOUT);
@@ -344,8 +357,9 @@ static int mtouch_read_data(struct usbtouch_usb *dev, unsigned char *pkt)
static int mtouch_init(struct usbtouch_usb *usbtouch)
{
int ret, i;
+ struct usb_device *udev = interface_to_usbdev(usbtouch->interface);
- ret = usb_control_msg(usbtouch->udev, usb_rcvctrlpipe(usbtouch->udev, 0),
+ ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
MTOUCHUSB_RESET,
USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
1, 0, NULL, 0, USB_CTRL_SET_TIMEOUT);
@@ -356,7 +370,7 @@ static int mtouch_init(struct usbtouch_usb *usbtouch)
msleep(150);
for (i = 0; i < 3; i++) {
- ret = usb_control_msg(usbtouch->udev, usb_rcvctrlpipe(usbtouch->udev, 0),
+ ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
MTOUCHUSB_ASYNC_REPORT,
USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
1, 1, NULL, 0, USB_CTRL_SET_TIMEOUT);
@@ -489,7 +503,7 @@ static int gunze_read_data(struct usbtouch_usb *dev, unsigned char *pkt)
static int dmc_tsc10_init(struct usbtouch_usb *usbtouch)
{
- struct usb_device *dev = usbtouch->udev;
+ struct usb_device *dev = interface_to_usbdev(usbtouch->interface);
int ret = -ENOMEM;
unsigned char *buf;
@@ -690,6 +704,229 @@ static int zytronic_read_data(struct usbtouch_usb *dev, unsigned char *pkt)
#endif
/*****************************************************************************
+ * NEXIO Part
+ */
+#ifdef CONFIG_TOUCHSCREEN_USB_NEXIO
+
+#define NEXIO_TIMEOUT 5000
+#define NEXIO_BUFSIZE 1024
+#define NEXIO_THRESHOLD 50
+
+struct nexio_priv {
+ struct urb *ack;
+ unsigned char *ack_buf;
+};
+
+struct nexio_touch_packet {
+ u8 flags; /* 0xe1 = touch, 0xe1 = release */
+ __be16 data_len; /* total bytes of touch data */
+ __be16 x_len; /* bytes for X axis */
+ __be16 y_len; /* bytes for Y axis */
+ u8 data[];
+} __attribute__ ((packed));
+
+static unsigned char nexio_ack_pkt[2] = { 0xaa, 0x02 };
+static unsigned char nexio_init_pkt[4] = { 0x82, 0x04, 0x0a, 0x0f };
+
+static void nexio_ack_complete(struct urb *urb)
+{
+}
+
+static int nexio_init(struct usbtouch_usb *usbtouch)
+{
+ struct usb_device *dev = interface_to_usbdev(usbtouch->interface);
+ struct usb_host_interface *interface = usbtouch->interface->cur_altsetting;
+ struct nexio_priv *priv;
+ int ret = -ENOMEM;
+ int actual_len, i;
+ unsigned char *buf;
+ char *firmware_ver = NULL, *device_name = NULL;
+ int input_ep = 0, output_ep = 0;
+
+ /* find first input and output endpoint */
+ for (i = 0; i < interface->desc.bNumEndpoints; i++) {
+ if (!input_ep &&
+ usb_endpoint_dir_in(&interface->endpoint[i].desc))
+ input_ep = interface->endpoint[i].desc.bEndpointAddress;
+ if (!output_ep &&
+ usb_endpoint_dir_out(&interface->endpoint[i].desc))
+ output_ep = interface->endpoint[i].desc.bEndpointAddress;
+ }
+ if (!input_ep || !output_ep)
+ return -ENXIO;
+
+ buf = kmalloc(NEXIO_BUFSIZE, GFP_KERNEL);
+ if (!buf)
+ goto out_buf;
+
+ /* two empty reads */
+ for (i = 0; i < 2; i++) {
+ ret = usb_bulk_msg(dev, usb_rcvbulkpipe(dev, input_ep),
+ buf, NEXIO_BUFSIZE, &actual_len,
+ NEXIO_TIMEOUT);
+ if (ret < 0)
+ goto out_buf;
+ }
+
+ /* send init command */
+ memcpy(buf, nexio_init_pkt, sizeof(nexio_init_pkt));
+ ret = usb_bulk_msg(dev, usb_sndbulkpipe(dev, output_ep),
+ buf, sizeof(nexio_init_pkt), &actual_len,
+ NEXIO_TIMEOUT);
+ if (ret < 0)
+ goto out_buf;
+
+ /* read replies */
+ for (i = 0; i < 3; i++) {
+ memset(buf, 0, NEXIO_BUFSIZE);
+ ret = usb_bulk_msg(dev, usb_rcvbulkpipe(dev, input_ep),
+ buf, NEXIO_BUFSIZE, &actual_len,
+ NEXIO_TIMEOUT);
+ if (ret < 0 || actual_len < 1 || buf[1] != actual_len)
+ continue;
+ switch (buf[0]) {
+ case 0x83: /* firmware version */
+ if (!firmware_ver)
+ firmware_ver = kstrdup(&buf[2], GFP_KERNEL);
+ break;
+ case 0x84: /* device name */
+ if (!device_name)
+ device_name = kstrdup(&buf[2], GFP_KERNEL);
+ break;
+ }
+ }
+
+ printk(KERN_INFO "Nexio device: %s, firmware version: %s\n",
+ device_name, firmware_ver);
+
+ kfree(firmware_ver);
+ kfree(device_name);
+
+ /* prepare ACK URB */
+ ret = -ENOMEM;
+
+ usbtouch->priv = kmalloc(sizeof(struct nexio_priv), GFP_KERNEL);
+ if (!usbtouch->priv)
+ goto out_buf;
+
+ priv = usbtouch->priv;
+
+ priv->ack_buf = kmalloc(sizeof(nexio_ack_pkt), GFP_KERNEL);
+ if (!priv->ack_buf)
+ goto err_priv;
+
+ memcpy(priv->ack_buf, nexio_ack_pkt, sizeof(nexio_ack_pkt));
+
+ priv->ack = usb_alloc_urb(0, GFP_KERNEL);
+ if (!priv->ack) {
+ dbg("%s - usb_alloc_urb failed: usbtouch->ack", __func__);
+ goto err_ack_buf;
+ }
+
+ usb_fill_bulk_urb(priv->ack, dev, usb_sndbulkpipe(dev, output_ep),
+ priv->ack_buf, sizeof(nexio_ack_pkt),
+ nexio_ack_complete, usbtouch);
+ ret = 0;
+ goto out_buf;
+
+err_ack_buf:
+ kfree(priv->ack_buf);
+err_priv:
+ kfree(priv);
+out_buf:
+ kfree(buf);
+ return ret;
+}
+
+static void nexio_exit(struct usbtouch_usb *usbtouch)
+{
+ struct nexio_priv *priv = usbtouch->priv;
+
+ usb_kill_urb(priv->ack);
+ usb_free_urb(priv->ack);
+ kfree(priv->ack_buf);
+ kfree(priv);
+}
+
+static int nexio_read_data(struct usbtouch_usb *usbtouch, unsigned char *pkt)
+{
+ int x, y, begin_x, begin_y, end_x, end_y, w, h, ret;
+ struct nexio_touch_packet *packet = (void *) pkt;
+ struct nexio_priv *priv = usbtouch->priv;
+
+ /* got touch data? */
+ if ((pkt[0] & 0xe0) != 0xe0)
+ return 0;
+
+ /* send ACK */
+ ret = usb_submit_urb(priv->ack, GFP_ATOMIC);
+
+ if (!usbtouch->type->max_xc) {
+ usbtouch->type->max_xc = 2 * be16_to_cpu(packet->x_len);
+ input_set_abs_params(usbtouch->input, ABS_X, 0,
+ 2 * be16_to_cpu(packet->x_len), 0, 0);
+ usbtouch->type->max_yc = 2 * be16_to_cpu(packet->y_len);
+ input_set_abs_params(usbtouch->input, ABS_Y, 0,
+ 2 * be16_to_cpu(packet->y_len), 0, 0);
+ }
+ /*
+ * The device reports state of IR sensors on X and Y axes.
+ * Each byte represents "darkness" percentage (0-100) of one element.
+ * 17" touchscreen reports only 64 x 52 bytes so the resolution is low.
+ * This also means that there's a limited multi-touch capability but
+ * it's disabled (and untested) here as there's no X driver for that.
+ */
+ begin_x = end_x = begin_y = end_y = -1;
+ for (x = 0; x < be16_to_cpu(packet->x_len); x++) {
+ if (begin_x == -1 && packet->data[x] > NEXIO_THRESHOLD) {
+ begin_x = x;
+ continue;
+ }
+ if (end_x == -1 && begin_x != -1 && packet->data[x] < NEXIO_THRESHOLD) {
+ end_x = x - 1;
+ for (y = be16_to_cpu(packet->x_len);
+ y < be16_to_cpu(packet->data_len); y++) {
+ if (begin_y == -1 && packet->data[y] > NEXIO_THRESHOLD) {
+ begin_y = y - be16_to_cpu(packet->x_len);
+ continue;
+ }
+ if (end_y == -1 &&
+ begin_y != -1 && packet->data[y] < NEXIO_THRESHOLD) {
+ end_y = y - 1 - be16_to_cpu(packet->x_len);
+ w = end_x - begin_x;
+ h = end_y - begin_y;
+#if 0
+ /* multi-touch */
+ input_report_abs(usbtouch->input,
+ ABS_MT_TOUCH_MAJOR, max(w,h));
+ input_report_abs(usbtouch->input,
+ ABS_MT_TOUCH_MINOR, min(x,h));
+ input_report_abs(usbtouch->input,
+ ABS_MT_POSITION_X, 2*begin_x+w);
+ input_report_abs(usbtouch->input,
+ ABS_MT_POSITION_Y, 2*begin_y+h);
+ input_report_abs(usbtouch->input,
+ ABS_MT_ORIENTATION, w > h);
+ input_mt_sync(usbtouch->input);
+#endif
+ /* single touch */
+ usbtouch->x = 2 * begin_x + w;
+ usbtouch->y = 2 * begin_y + h;
+ usbtouch->touch = packet->flags & 0x01;
+ begin_y = end_y = -1;
+ return 1;
+ }
+ }
+ begin_x = end_x = -1;
+ }
+
+ }
+ return 0;
+}
+#endif
+
+
+/*****************************************************************************
* the different device descriptors
*/
#ifdef MULTI_PACKET
@@ -873,6 +1110,16 @@ static struct usbtouch_device_info usbtouch_dev_info[] = {
.read_data = tc5uh_read_data,
},
#endif
+
+#ifdef CONFIG_TOUCHSCREEN_USB_NEXIO
+ [DEVTYPE_NEXIO] = {
+ .rept_size = 128,
+ .irq_always = true,
+ .read_data = nexio_read_data,
+ .init = nexio_init,
+ .exit = nexio_exit,
+ },
+#endif
};
@@ -998,6 +1245,7 @@ static void usbtouch_irq(struct urb *urb)
case -ECONNRESET:
case -ENOENT:
case -ESHUTDOWN:
+ case -EPIPE:
/* this urb is terminated, clean up */
dbg("%s - urb shutting down with status: %d",
__func__, urb->status);
@@ -1021,7 +1269,7 @@ static int usbtouch_open(struct input_dev *input)
{
struct usbtouch_usb *usbtouch = input_get_drvdata(input);
- usbtouch->irq->dev = usbtouch->udev;
+ usbtouch->irq->dev = interface_to_usbdev(usbtouch->interface);
if (!usbtouch->type->irq_always) {
if (usb_submit_urb(usbtouch->irq, GFP_KERNEL))
@@ -1048,13 +1296,23 @@ static void usbtouch_free_buffers(struct usb_device *udev,
kfree(usbtouch->buffer);
}
+static struct usb_endpoint_descriptor *
+usbtouch_get_input_endpoint(struct usb_host_interface *interface)
+{
+ int i;
+
+ for (i = 0; i < interface->desc.bNumEndpoints; i++)
+ if (usb_endpoint_dir_in(&interface->endpoint[i].desc))
+ return &interface->endpoint[i].desc;
+
+ return NULL;
+}
static int usbtouch_probe(struct usb_interface *intf,
const struct usb_device_id *id)
{
struct usbtouch_usb *usbtouch;
struct input_dev *input_dev;
- struct usb_host_interface *interface;
struct usb_endpoint_descriptor *endpoint;
struct usb_device *udev = interface_to_usbdev(intf);
struct usbtouch_device_info *type;
@@ -1064,8 +1322,9 @@ static int usbtouch_probe(struct usb_interface *intf,
if (id->driver_info == DEVTYPE_IGNORE)
return -ENODEV;
- interface = intf->cur_altsetting;
- endpoint = &interface->endpoint[0].desc;
+ endpoint = usbtouch_get_input_endpoint(intf->cur_altsetting);
+ if (!endpoint)
+ return -ENXIO;
usbtouch = kzalloc(sizeof(struct usbtouch_usb), GFP_KERNEL);
input_dev = input_allocate_device();
@@ -1094,7 +1353,7 @@ static int usbtouch_probe(struct usb_interface *intf,
goto out_free_buffers;
}
- usbtouch->udev = udev;
+ usbtouch->interface = intf;
usbtouch->input = input_dev;
if (udev->manufacturer)
@@ -1133,12 +1392,18 @@ static int usbtouch_probe(struct usb_interface *intf,
input_set_abs_params(input_dev, ABS_PRESSURE, type->min_press,
type->max_press, 0, 0);
- usb_fill_int_urb(usbtouch->irq, usbtouch->udev,
- usb_rcvintpipe(usbtouch->udev, endpoint->bEndpointAddress),
+ if (usb_endpoint_type(endpoint) == USB_ENDPOINT_XFER_INT)
+ usb_fill_int_urb(usbtouch->irq, udev,
+ usb_rcvintpipe(udev, endpoint->bEndpointAddress),
usbtouch->data, type->rept_size,
usbtouch_irq, usbtouch, endpoint->bInterval);
+ else
+ usb_fill_bulk_urb(usbtouch->irq, udev,
+ usb_rcvbulkpipe(udev, endpoint->bEndpointAddress),
+ usbtouch->data, type->rept_size,
+ usbtouch_irq, usbtouch);
- usbtouch->irq->dev = usbtouch->udev;
+ usbtouch->irq->dev = udev;
usbtouch->irq->transfer_dma = usbtouch->data_dma;
usbtouch->irq->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
@@ -1147,23 +1412,37 @@ static int usbtouch_probe(struct usb_interface *intf,
err = type->init(usbtouch);
if (err) {
dbg("%s - type->init() failed, err: %d", __func__, err);
- goto out_free_buffers;
+ goto out_free_urb;
}
}
err = input_register_device(usbtouch->input);
if (err) {
dbg("%s - input_register_device failed, err: %d", __func__, err);
- goto out_free_buffers;
+ goto out_do_exit;
}
usb_set_intfdata(intf, usbtouch);
- if (usbtouch->type->irq_always)
- usb_submit_urb(usbtouch->irq, GFP_KERNEL);
+ if (usbtouch->type->irq_always) {
+ err = usb_submit_urb(usbtouch->irq, GFP_KERNEL);
+ if (err) {
+ err("%s - usb_submit_urb failed with result: %d",
+ __func__, err);
+ goto out_unregister_input;
+ }
+ }
return 0;
+out_unregister_input:
+ input_unregister_device(input_dev);
+ input_dev = NULL;
+out_do_exit:
+ if (type->exit)
+ type->exit(usbtouch);
+out_free_urb:
+ usb_free_urb(usbtouch->irq);
out_free_buffers:
usbtouch_free_buffers(udev, usbtouch);
out_free:
@@ -1186,6 +1465,8 @@ static void usbtouch_disconnect(struct usb_interface *intf)
/* this will stop IO via close */
input_unregister_device(usbtouch->input);
usb_free_urb(usbtouch->irq);
+ if (usbtouch->type->exit)
+ usbtouch->type->exit(usbtouch);
usbtouch_free_buffers(interface_to_usbdev(intf), usbtouch);
kfree(usbtouch);
}
diff --git a/drivers/input/touchscreen/zylonite-wm97xx.c b/drivers/input/touchscreen/zylonite-wm97xx.c
index eca54dbdf493..048849867643 100644
--- a/drivers/input/touchscreen/zylonite-wm97xx.c
+++ b/drivers/input/touchscreen/zylonite-wm97xx.c
@@ -118,6 +118,9 @@ static int wm97xx_acc_pen_down(struct wm97xx *wm)
if (pressure)
p = MODR;
+ dev_dbg(wm->dev, "Raw coordinates: x=%x, y=%x, p=%x\n",
+ x, y, p);
+
/* are samples valid */
if ((x & WM97XX_ADCSRC_MASK) != WM97XX_ADCSEL_X ||
(y & WM97XX_ADCSRC_MASK) != WM97XX_ADCSEL_Y ||
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