A set of ABS_MT events with the desired properties is defined. The events
are divided into categories, to allow for partial implementation. The
-minimum set consists of ABS_MT_TOUCH_MAJOR, ABS_MT_POSITION_X and
-ABS_MT_POSITION_Y, which allows for multiple fingers to be tracked. If the
-device supports it, the ABS_MT_WIDTH_MAJOR may be used to provide the size
-of the approaching finger. Anisotropy and direction may be specified with
-ABS_MT_TOUCH_MINOR, ABS_MT_WIDTH_MINOR and ABS_MT_ORIENTATION. The
-ABS_MT_TOOL_TYPE may be used to specify whether the touching tool is a
+minimum set consists of ABS_MT_POSITION_X and ABS_MT_POSITION_Y, which
+allows for multiple fingers to be tracked. If the device supports it, the
+ABS_MT_TOUCH_MAJOR and ABS_MT_WIDTH_MAJOR may be used to provide the size
+of the contact area and approaching finger, respectively.
+
+The TOUCH and WIDTH parameters have a geometrical interpretation; imagine
+looking through a window at someone gently holding a finger against the
+glass. You will see two regions, one inner region consisting of the part
+of the finger actually touching the glass, and one outer region formed by
+the perimeter of the finger. The diameter of the inner region is the
+ABS_MT_TOUCH_MAJOR, the diameter of the outer region is
+ABS_MT_WIDTH_MAJOR. Now imagine the person pressing the finger harder
+against the glass. The inner region will increase, and in general, the
+ratio ABS_MT_TOUCH_MAJOR / ABS_MT_WIDTH_MAJOR, which is always smaller than
+unity, is related to the finger pressure. For pressure-based devices,
+ABS_MT_PRESSURE may be used to provide the pressure on the contact area
+instead.
+
+In addition to the MAJOR parameters, the oval shape of the finger can be
+described by adding the MINOR parameters, such that MAJOR and MINOR are the
+major and minor axis of an ellipse. Finally, the orientation of the oval
+shape can be describe with the ORIENTATION parameter.
+
+The ABS_MT_TOOL_TYPE may be used to specify whether the touching tool is a
finger or a pen or something else. Devices with more granular information
may specify general shapes as blobs, i.e., as a sequence of rectangular
shapes grouped together by an ABS_MT_BLOB_ID. Finally, for the few devices
Here is what a minimal event sequence for a two-finger touch would look
like:
- ABS_MT_TOUCH_MAJOR
ABS_MT_POSITION_X
ABS_MT_POSITION_Y
SYN_MT_REPORT
- ABS_MT_TOUCH_MAJOR
ABS_MT_POSITION_X
ABS_MT_POSITION_Y
SYN_MT_REPORT
the notion of pressure. The fingers of the hand and the palm all have
different characteristic widths [1].
+ABS_MT_PRESSURE
+
+The pressure, in arbitrary units, on the contact area. May be used instead
+of TOUCH and WIDTH for pressure-based devices or any device with a spatial
+signal intensity distribution.
+
ABS_MT_ORIENTATION
The orientation of the ellipse. The value should describe a signed quarter
make use of these native identifiers to reduce bandwidth and cpu usage.
+Gestures
+--------
+
+In the specific application of creating gesture events, the TOUCH and WIDTH
+parameters can be used to, e.g., approximate finger pressure or distinguish
+between index finger and thumb. With the addition of the MINOR parameters,
+one can also distinguish between a sweeping finger and a pointing finger,
+and with ORIENTATION, one can detect twisting of fingers.
+
+
Notes
-----
struct input_polled_dev *dev = input_get_drvdata(input);
cancel_delayed_work_sync(&dev->work);
+ /*
+ * Clean up work struct to remove references to the workqueue.
+ * It may be destroyed by the next call. This causes problems
+ * at next device open-close in case of poll_interval == 0.
+ */
+ INIT_DELAYED_WORK(&dev->work, dev->work.work.func);
input_polldev_stop_workqueue();
if (dev->close)
ABS_MT_TOOL_TYPE,
ABS_MT_BLOB_ID,
ABS_MT_TRACKING_ID,
+ ABS_MT_PRESSURE,
0
};
static unsigned long input_abs_bypass[BITS_TO_LONGS(ABS_CNT)];
data->irdata_count = 0;
data->irdata_off = 0;
data->irdata_error = 0;
+ data->idle_count = 0;
}
/* Adds one bit of irdata */
return;
}
- dev_info(dev, "IR-RC6 ad 0x%02X cm 0x%02X cu 0x%04X "
+ dev_dbg(dev, "IR-RC6 ad 0x%02X cm 0x%02X cu 0x%04X "
"toggle %u mode %u scan 0x%08X\n",
address,
command,
}
wbcir_reset_irdata(data);
- data->idle_count = 0;
}
out:
/*****************************************************************************
*
- * SUSPEND/RESUME FUNCTIONS
+ * SETUP/INIT/SUSPEND/RESUME FUNCTIONS
*
*****************************************************************************/
}
/* Disable interrupts */
+ wbcir_select_bank(data, WBCIR_BANK_0);
outb(WBCIR_IRQ_NONE, data->sbase + WBCIR_REG_SP3_IER);
+
+ /*
+ * ACPI will set the HW disable bit for SP3 which means that the
+ * output signals are left in an undefined state which may cause
+ * spurious interrupts which we need to ignore until the hardware
+ * is reinitialized.
+ */
+ disable_irq(data->irq);
}
static int
return 0;
}
-static int
-wbcir_resume(struct pnp_dev *device)
-{
- struct wbcir_data *data = pnp_get_drvdata(device);
-
- /* Clear BUFF_EN, Clear END_EN, Clear MATCH_EN */
- wbcir_set_bits(data->wbase + WBCIR_REG_WCEIR_EV_EN, 0x00, 0x07);
-
- /* Clear CEIR_EN */
- wbcir_set_bits(data->wbase + WBCIR_REG_WCEIR_CTL, 0x00, 0x01);
-
- /* Enable interrupts */
- wbcir_reset_irdata(data);
- outb(WBCIR_IRQ_RX | WBCIR_IRQ_ERR, data->sbase + WBCIR_REG_SP3_IER);
-
- return 0;
-}
-
-
-
-/*****************************************************************************
- *
- * SETUP/INIT FUNCTIONS
- *
- *****************************************************************************/
-
static void
-wbcir_cfg_ceir(struct wbcir_data *data)
+wbcir_init_hw(struct wbcir_data *data)
{
u8 tmp;
+ /* Disable interrupts */
+ wbcir_select_bank(data, WBCIR_BANK_0);
+ outb(WBCIR_IRQ_NONE, data->sbase + WBCIR_REG_SP3_IER);
+
/* Set PROT_SEL, RX_INV, Clear CEIR_EN (needed for the led) */
tmp = protocol << 4;
if (invert)
* set SP3_IRRX_SW to binary 01, helpfully not documented
*/
outb(0x10, data->ebase + WBCIR_REG_ECEIR_CTS);
+
+ /* Enable extended mode */
+ wbcir_select_bank(data, WBCIR_BANK_2);
+ outb(WBCIR_EXT_ENABLE, data->sbase + WBCIR_REG_SP3_EXCR1);
+
+ /*
+ * Configure baud generator, IR data will be sampled at
+ * a bitrate of: (24Mhz * prescaler) / (divisor * 16).
+ *
+ * The ECIR registers include a flag to change the
+ * 24Mhz clock freq to 48Mhz.
+ *
+ * It's not documented in the specs, but fifo levels
+ * other than 16 seems to be unsupported.
+ */
+
+ /* prescaler 1.0, tx/rx fifo lvl 16 */
+ outb(0x30, data->sbase + WBCIR_REG_SP3_EXCR2);
+
+ /* Set baud divisor to generate one byte per bit/cell */
+ switch (protocol) {
+ case IR_PROTOCOL_RC5:
+ outb(0xA7, data->sbase + WBCIR_REG_SP3_BGDL);
+ break;
+ case IR_PROTOCOL_RC6:
+ outb(0x53, data->sbase + WBCIR_REG_SP3_BGDL);
+ break;
+ case IR_PROTOCOL_NEC:
+ outb(0x69, data->sbase + WBCIR_REG_SP3_BGDL);
+ break;
+ }
+ outb(0x00, data->sbase + WBCIR_REG_SP3_BGDH);
+
+ /* Set CEIR mode */
+ wbcir_select_bank(data, WBCIR_BANK_0);
+ outb(0xC0, data->sbase + WBCIR_REG_SP3_MCR);
+ inb(data->sbase + WBCIR_REG_SP3_LSR); /* Clear LSR */
+ inb(data->sbase + WBCIR_REG_SP3_MSR); /* Clear MSR */
+
+ /* Disable RX demod, run-length encoding/decoding, set freq span */
+ wbcir_select_bank(data, WBCIR_BANK_7);
+ outb(0x10, data->sbase + WBCIR_REG_SP3_RCCFG);
+
+ /* Disable timer */
+ wbcir_select_bank(data, WBCIR_BANK_4);
+ outb(0x00, data->sbase + WBCIR_REG_SP3_IRCR1);
+
+ /* Enable MSR interrupt, Clear AUX_IRX */
+ wbcir_select_bank(data, WBCIR_BANK_5);
+ outb(0x00, data->sbase + WBCIR_REG_SP3_IRCR2);
+
+ /* Disable CRC */
+ wbcir_select_bank(data, WBCIR_BANK_6);
+ outb(0x20, data->sbase + WBCIR_REG_SP3_IRCR3);
+
+ /* Set RX/TX (de)modulation freq, not really used */
+ wbcir_select_bank(data, WBCIR_BANK_7);
+ outb(0xF2, data->sbase + WBCIR_REG_SP3_IRRXDC);
+ outb(0x69, data->sbase + WBCIR_REG_SP3_IRTXMC);
+
+ /* Set invert and pin direction */
+ if (invert)
+ outb(0x10, data->sbase + WBCIR_REG_SP3_IRCFG4);
+ else
+ outb(0x00, data->sbase + WBCIR_REG_SP3_IRCFG4);
+
+ /* Set FIFO thresholds (RX = 8, TX = 3), reset RX/TX */
+ wbcir_select_bank(data, WBCIR_BANK_0);
+ outb(0x97, data->sbase + WBCIR_REG_SP3_FCR);
+
+ /* Clear AUX status bits */
+ outb(0xE0, data->sbase + WBCIR_REG_SP3_ASCR);
+
+ /* Enable interrupts */
+ wbcir_reset_irdata(data);
+ outb(WBCIR_IRQ_RX | WBCIR_IRQ_ERR, data->sbase + WBCIR_REG_SP3_IER);
+}
+
+static int
+wbcir_resume(struct pnp_dev *device)
+{
+ struct wbcir_data *data = pnp_get_drvdata(device);
+
+ wbcir_init_hw(data);
+ enable_irq(data->irq);
+
+ return 0;
}
static int __devinit
device_init_wakeup(&device->dev, 1);
- wbcir_cfg_ceir(data);
-
- /* Disable interrupts */
- wbcir_select_bank(data, WBCIR_BANK_0);
- outb(WBCIR_IRQ_NONE, data->sbase + WBCIR_REG_SP3_IER);
-
- /* Enable extended mode */
- wbcir_select_bank(data, WBCIR_BANK_2);
- outb(WBCIR_EXT_ENABLE, data->sbase + WBCIR_REG_SP3_EXCR1);
-
- /*
- * Configure baud generator, IR data will be sampled at
- * a bitrate of: (24Mhz * prescaler) / (divisor * 16).
- *
- * The ECIR registers include a flag to change the
- * 24Mhz clock freq to 48Mhz.
- *
- * It's not documented in the specs, but fifo levels
- * other than 16 seems to be unsupported.
- */
-
- /* prescaler 1.0, tx/rx fifo lvl 16 */
- outb(0x30, data->sbase + WBCIR_REG_SP3_EXCR2);
-
- /* Set baud divisor to generate one byte per bit/cell */
- switch (protocol) {
- case IR_PROTOCOL_RC5:
- outb(0xA7, data->sbase + WBCIR_REG_SP3_BGDL);
- break;
- case IR_PROTOCOL_RC6:
- outb(0x53, data->sbase + WBCIR_REG_SP3_BGDL);
- break;
- case IR_PROTOCOL_NEC:
- outb(0x69, data->sbase + WBCIR_REG_SP3_BGDL);
- break;
- }
- outb(0x00, data->sbase + WBCIR_REG_SP3_BGDH);
-
- /* Set CEIR mode */
- wbcir_select_bank(data, WBCIR_BANK_0);
- outb(0xC0, data->sbase + WBCIR_REG_SP3_MCR);
- inb(data->sbase + WBCIR_REG_SP3_LSR); /* Clear LSR */
- inb(data->sbase + WBCIR_REG_SP3_MSR); /* Clear MSR */
-
- /* Disable RX demod, run-length encoding/decoding, set freq span */
- wbcir_select_bank(data, WBCIR_BANK_7);
- outb(0x10, data->sbase + WBCIR_REG_SP3_RCCFG);
-
- /* Disable timer */
- wbcir_select_bank(data, WBCIR_BANK_4);
- outb(0x00, data->sbase + WBCIR_REG_SP3_IRCR1);
-
- /* Enable MSR interrupt, Clear AUX_IRX */
- wbcir_select_bank(data, WBCIR_BANK_5);
- outb(0x00, data->sbase + WBCIR_REG_SP3_IRCR2);
-
- /* Disable CRC */
- wbcir_select_bank(data, WBCIR_BANK_6);
- outb(0x20, data->sbase + WBCIR_REG_SP3_IRCR3);
-
- /* Set RX/TX (de)modulation freq, not really used */
- wbcir_select_bank(data, WBCIR_BANK_7);
- outb(0xF2, data->sbase + WBCIR_REG_SP3_IRRXDC);
- outb(0x69, data->sbase + WBCIR_REG_SP3_IRTXMC);
-
- /* Set invert and pin direction */
- if (invert)
- outb(0x10, data->sbase + WBCIR_REG_SP3_IRCFG4);
- else
- outb(0x00, data->sbase + WBCIR_REG_SP3_IRCFG4);
-
- /* Set FIFO thresholds (RX = 8, TX = 3), reset RX/TX */
- wbcir_select_bank(data, WBCIR_BANK_0);
- outb(0x97, data->sbase + WBCIR_REG_SP3_FCR);
-
- /* Clear AUX status bits */
- outb(0xE0, data->sbase + WBCIR_REG_SP3_ASCR);
-
- /* Enable interrupts */
- outb(WBCIR_IRQ_RX | WBCIR_IRQ_ERR, data->sbase + WBCIR_REG_SP3_IER);
+ wbcir_init_hw(data);
return 0;
DMI_MATCH(DMI_PRODUCT_NAME, "FLORA-ie 55mi"),
},
},
+ {
+ /* LifeBook B */
+ .matches = {
+ DMI_MATCH(DMI_PRODUCT_NAME, "Lifebook B Series"),
+ },
+ },
{
/* LifeBook B */
.matches = {
psmouse_deactivate(parent);
}
- psmouse_deactivate(psmouse);
+ psmouse_set_state(psmouse, PSMOUSE_INITIALIZING);
+
+ /*
+ * Disable stream mode so cleanup routine can proceed undisturbed.
+ */
+ if (ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_DISABLE))
+ printk(KERN_WARNING "psmouse.c: Failed to disable mouse on %s\n",
+ psmouse->ps2dev.serio->phys);
if (psmouse->cleanup)
psmouse->cleanup(psmouse);
return 0;
}
+static int i8042_pm_thaw(struct device *dev)
+{
+ i8042_interrupt(0, NULL);
+
+ return 0;
+}
+
static const struct dev_pm_ops i8042_pm_ops = {
.suspend = i8042_pm_reset,
.resume = i8042_pm_restore,
+ .thaw = i8042_pm_thaw,
.poweroff = i8042_pm_reset,
.restore = i8042_pm_restore,
};
#include <linux/workqueue.h>
#include <linux/spi/spi.h>
#include <linux/i2c.h>
+#include <linux/gpio.h>
#include <linux/spi/ad7879.h>
struct input_dev *input;
struct work_struct work;
struct timer_list timer;
-
+#ifdef CONFIG_GPIOLIB
+ struct gpio_chip gc;
+#endif
struct mutex mutex;
unsigned disabled:1; /* P: mutex */
u8 median;
u16 x_plate_ohms;
u16 pressure_max;
- u16 gpio_init;
u16 cmd_crtl1;
u16 cmd_crtl2;
u16 cmd_crtl3;
- unsigned gpio:1;
};
static int ad7879_read(bus_device *, u8);
static void ad7879_setup(struct ad7879 *ts)
{
- ts->cmd_crtl3 = AD7879_YPLUS_BIT |
- AD7879_XPLUS_BIT |
- AD7879_Z2_BIT |
- AD7879_Z1_BIT |
- AD7879_TEMPMASK_BIT |
- AD7879_AUXVBATMASK_BIT |
- AD7879_GPIOALERTMASK_BIT;
-
- ts->cmd_crtl2 = AD7879_PM(AD7879_PM_DYN) | AD7879_DFR |
- AD7879_AVG(ts->averaging) |
- AD7879_MFS(ts->median) |
- AD7879_FCD(ts->first_conversion_delay) |
- ts->gpio_init;
-
- ts->cmd_crtl1 = AD7879_MODE_INT | AD7879_MODE_SEQ1 |
- AD7879_ACQ(ts->acquisition_time) |
- AD7879_TMR(ts->pen_down_acc_interval);
-
ad7879_write(ts->bus, AD7879_REG_CTRL2, ts->cmd_crtl2);
ad7879_write(ts->bus, AD7879_REG_CTRL3, ts->cmd_crtl3);
ad7879_write(ts->bus, AD7879_REG_CTRL1, ts->cmd_crtl1);
static DEVICE_ATTR(disable, 0664, ad7879_disable_show, ad7879_disable_store);
-static ssize_t ad7879_gpio_show(struct device *dev,
- struct device_attribute *attr, char *buf)
+static struct attribute *ad7879_attributes[] = {
+ &dev_attr_disable.attr,
+ NULL
+};
+
+static const struct attribute_group ad7879_attr_group = {
+ .attrs = ad7879_attributes,
+};
+
+#ifdef CONFIG_GPIOLIB
+static int ad7879_gpio_direction_input(struct gpio_chip *chip,
+ unsigned gpio)
{
- struct ad7879 *ts = dev_get_drvdata(dev);
+ struct ad7879 *ts = container_of(chip, struct ad7879, gc);
+ int err;
- return sprintf(buf, "%u\n", ts->gpio);
+ mutex_lock(&ts->mutex);
+ ts->cmd_crtl2 |= AD7879_GPIO_EN | AD7879_GPIODIR | AD7879_GPIOPOL;
+ err = ad7879_write(ts->bus, AD7879_REG_CTRL2, ts->cmd_crtl2);
+ mutex_unlock(&ts->mutex);
+
+ return err;
}
-static ssize_t ad7879_gpio_store(struct device *dev,
- struct device_attribute *attr,
- const char *buf, size_t count)
+static int ad7879_gpio_direction_output(struct gpio_chip *chip,
+ unsigned gpio, int level)
{
- struct ad7879 *ts = dev_get_drvdata(dev);
- unsigned long val;
- int error;
+ struct ad7879 *ts = container_of(chip, struct ad7879, gc);
+ int err;
- error = strict_strtoul(buf, 10, &val);
- if (error)
- return error;
+ mutex_lock(&ts->mutex);
+ ts->cmd_crtl2 &= ~AD7879_GPIODIR;
+ ts->cmd_crtl2 |= AD7879_GPIO_EN | AD7879_GPIOPOL;
+ if (level)
+ ts->cmd_crtl2 |= AD7879_GPIO_DATA;
+ else
+ ts->cmd_crtl2 &= ~AD7879_GPIO_DATA;
+
+ err = ad7879_write(ts->bus, AD7879_REG_CTRL2, ts->cmd_crtl2);
+ mutex_unlock(&ts->mutex);
+
+ return err;
+}
+
+static int ad7879_gpio_get_value(struct gpio_chip *chip, unsigned gpio)
+{
+ struct ad7879 *ts = container_of(chip, struct ad7879, gc);
+ u16 val;
mutex_lock(&ts->mutex);
- ts->gpio = !!val;
- error = ad7879_write(ts->bus, AD7879_REG_CTRL2,
- ts->gpio ?
- ts->cmd_crtl2 & ~AD7879_GPIO_DATA :
- ts->cmd_crtl2 | AD7879_GPIO_DATA);
+ val = ad7879_read(ts->bus, AD7879_REG_CTRL2);
mutex_unlock(&ts->mutex);
- return error ? : count;
+ return !!(val & AD7879_GPIO_DATA);
}
-static DEVICE_ATTR(gpio, 0664, ad7879_gpio_show, ad7879_gpio_store);
+static void ad7879_gpio_set_value(struct gpio_chip *chip,
+ unsigned gpio, int value)
+{
+ struct ad7879 *ts = container_of(chip, struct ad7879, gc);
-static struct attribute *ad7879_attributes[] = {
- &dev_attr_disable.attr,
- &dev_attr_gpio.attr,
- NULL
-};
+ mutex_lock(&ts->mutex);
+ if (value)
+ ts->cmd_crtl2 |= AD7879_GPIO_DATA;
+ else
+ ts->cmd_crtl2 &= ~AD7879_GPIO_DATA;
-static const struct attribute_group ad7879_attr_group = {
- .attrs = ad7879_attributes,
-};
+ ad7879_write(ts->bus, AD7879_REG_CTRL2, ts->cmd_crtl2);
+ mutex_unlock(&ts->mutex);
+}
+
+static int __devinit ad7879_gpio_add(struct device *dev)
+{
+ struct ad7879 *ts = dev_get_drvdata(dev);
+ struct ad7879_platform_data *pdata = dev->platform_data;
+ int ret = 0;
+
+ if (pdata->gpio_export) {
+ ts->gc.direction_input = ad7879_gpio_direction_input;
+ ts->gc.direction_output = ad7879_gpio_direction_output;
+ ts->gc.get = ad7879_gpio_get_value;
+ ts->gc.set = ad7879_gpio_set_value;
+ ts->gc.can_sleep = 1;
+ ts->gc.base = pdata->gpio_base;
+ ts->gc.ngpio = 1;
+ ts->gc.label = "AD7879-GPIO";
+ ts->gc.owner = THIS_MODULE;
+ ts->gc.dev = dev;
+
+ ret = gpiochip_add(&ts->gc);
+ if (ret)
+ dev_err(dev, "failed to register gpio %d\n",
+ ts->gc.base);
+ }
+
+ return ret;
+}
+
+/*
+ * We mark ad7879_gpio_remove inline so there is a chance the code
+ * gets discarded when not needed. We can't do __devinit/__devexit
+ * markup since it is used in both probe and remove methods.
+ */
+static inline void ad7879_gpio_remove(struct device *dev)
+{
+ struct ad7879 *ts = dev_get_drvdata(dev);
+ struct ad7879_platform_data *pdata = dev->platform_data;
+ int ret;
+
+ if (pdata->gpio_export) {
+ ret = gpiochip_remove(&ts->gc);
+ if (ret)
+ dev_err(dev, "failed to remove gpio %d\n",
+ ts->gc.base);
+ }
+}
+#else
+static inline int ad7879_gpio_add(struct device *dev)
+{
+ return 0;
+}
+
+static inline void ad7879_gpio_remove(struct device *dev)
+{
+}
+#endif
static int __devinit ad7879_construct(bus_device *bus, struct ad7879 *ts)
{
ts->pen_down_acc_interval = pdata->pen_down_acc_interval;
ts->median = pdata->median;
- if (pdata->gpio_output)
- ts->gpio_init = AD7879_GPIO_EN |
- (pdata->gpio_default ? 0 : AD7879_GPIO_DATA);
- else
- ts->gpio_init = AD7879_GPIO_EN | AD7879_GPIODIR;
-
snprintf(ts->phys, sizeof(ts->phys), "%s/input0", dev_name(&bus->dev));
input_dev->name = "AD7879 Touchscreen";
goto err_free_mem;
}
+ ts->cmd_crtl3 = AD7879_YPLUS_BIT |
+ AD7879_XPLUS_BIT |
+ AD7879_Z2_BIT |
+ AD7879_Z1_BIT |
+ AD7879_TEMPMASK_BIT |
+ AD7879_AUXVBATMASK_BIT |
+ AD7879_GPIOALERTMASK_BIT;
+
+ ts->cmd_crtl2 = AD7879_PM(AD7879_PM_DYN) | AD7879_DFR |
+ AD7879_AVG(ts->averaging) |
+ AD7879_MFS(ts->median) |
+ AD7879_FCD(ts->first_conversion_delay);
+
+ ts->cmd_crtl1 = AD7879_MODE_INT | AD7879_MODE_SEQ1 |
+ AD7879_ACQ(ts->acquisition_time) |
+ AD7879_TMR(ts->pen_down_acc_interval);
+
ad7879_setup(ts);
err = request_irq(bus->irq, ad7879_irq,
if (err)
goto err_free_irq;
- err = input_register_device(input_dev);
+ err = ad7879_gpio_add(&bus->dev);
if (err)
goto err_remove_attr;
+ err = input_register_device(input_dev);
+ if (err)
+ goto err_remove_gpio;
+
dev_info(&bus->dev, "Rev.%d touchscreen, irq %d\n",
revid >> 8, bus->irq);
return 0;
+err_remove_gpio:
+ ad7879_gpio_remove(&bus->dev);
err_remove_attr:
sysfs_remove_group(&bus->dev.kobj, &ad7879_attr_group);
err_free_irq:
static int __devexit ad7879_destroy(bus_device *bus, struct ad7879 *ts)
{
+ ad7879_gpio_remove(&bus->dev);
ad7879_disable(ts);
sysfs_remove_group(&ts->bus->dev.kobj, &ad7879_attr_group);
free_irq(ts->bus->irq, ts);
#ifdef CONFIG_TOUCHSCREEN_USB_GENERAL_TOUCH
static int general_touch_read_data(struct usbtouch_usb *dev, unsigned char *pkt)
{
- dev->x = ((pkt[2] & 0x0F) << 8) | pkt[1] ;
- dev->y = ((pkt[4] & 0x0F) << 8) | pkt[3] ;
+ dev->x = (pkt[2] << 8) | pkt[1];
+ dev->y = (pkt[4] << 8) | pkt[3];
dev->press = pkt[5] & 0xff;
dev->touch = pkt[0] & 0x01;
#ifdef CONFIG_TOUCHSCREEN_USB_GENERAL_TOUCH
[DEVTYPE_GENERAL_TOUCH] = {
.min_xc = 0x0,
- .max_xc = 0x0500,
+ .max_xc = 0x7fff,
.min_yc = 0x0,
- .max_yc = 0x0500,
+ .max_yc = 0x7fff,
.rept_size = 7,
.read_data = general_touch_read_data,
},
#define KEY_DISPLAY_OFF 245 /* display device to off state */
#define KEY_WIMAX 246
+#define KEY_RFKILL 247 /* Key that controls all radios */
/* Code 255 is reserved for special needs of AT keyboard driver */
#define ABS_MT_TOOL_TYPE 0x37 /* Type of touching device */
#define ABS_MT_BLOB_ID 0x38 /* Group a set of packets as a blob */
#define ABS_MT_TRACKING_ID 0x39 /* Unique ID of initiated contact */
+#define ABS_MT_PRESSURE 0x3a /* Pressure on contact area */
#define ABS_MAX 0x3f
#define ABS_CNT (ABS_MAX+1)
* 1 = 4, 2 = 8, 3 = 16 (median > averaging)
*/
u8 median;
- /* 1 = AUX/VBAT/GPIO set to GPIO Output */
- u8 gpio_output;
- /* Initial GPIO pin state (valid if gpio_output = 1) */
- u8 gpio_default;
+ /* 1 = AUX/VBAT/GPIO export GPIO to gpiolib
+ * requires CONFIG_GPIOLIB
+ */
+ bool gpio_export;
+ /* identifies the first GPIO number handled by this chip;
+ * or, if negative, requests dynamic ID allocation.
+ */
+ s32 gpio_base;
};
projects / cascardo / linux.git / commitdiff