Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: appletouch - improve powersaving for Geyser3 devices
Input: lifebook - fix an oops on Panasonic CF-18
Input: document intended meaning of KEY_SWITCHVIDEOMODE
Input: switch to using seq_list_xxx helpers
Input: i8042 - give more trust to PNP data on i386
Input: add driver for Fujitsu serial touchscreens
Input: ads7846 - re-check pendown status before reporting events
Input: ads7846 - introduce sample settling delay
Input: xpad - add support for leds on xbox 360 pad
diff --git a/drivers/input/input.c b/drivers/input/input.c
index 75b4d2a..5fe7555 100644
--- a/drivers/input/input.c
+++ b/drivers/input/input.c
@@ -471,37 +471,16 @@
return 0;
}
-static struct list_head *list_get_nth_element(struct list_head *list, loff_t *pos)
-{
- struct list_head *node;
- loff_t i = 0;
-
- list_for_each(node, list)
- if (i++ == *pos)
- return node;
-
- return NULL;
-}
-
-static struct list_head *list_get_next_element(struct list_head *list, struct list_head *element, loff_t *pos)
-{
- if (element->next == list)
- return NULL;
-
- ++(*pos);
- return element->next;
-}
-
static void *input_devices_seq_start(struct seq_file *seq, loff_t *pos)
{
/* acquire lock here ... Yes, we do need locking, I knowi, I know... */
- return list_get_nth_element(&input_dev_list, pos);
+ return seq_list_start(&input_dev_list, *pos);
}
static void *input_devices_seq_next(struct seq_file *seq, void *v, loff_t *pos)
{
- return list_get_next_element(&input_dev_list, v, pos);
+ return seq_list_next(v, &input_dev_list, pos);
}
static void input_devices_seq_stop(struct seq_file *seq, void *v)
@@ -592,13 +571,13 @@
{
/* acquire lock here ... Yes, we do need locking, I knowi, I know... */
seq->private = (void *)(unsigned long)*pos;
- return list_get_nth_element(&input_handler_list, pos);
+ return seq_list_start(&input_handler_list, *pos);
}
static void *input_handlers_seq_next(struct seq_file *seq, void *v, loff_t *pos)
{
seq->private = (void *)(unsigned long)(*pos + 1);
- return list_get_next_element(&input_handler_list, v, pos);
+ return seq_list_next(v, &input_handler_list, pos);
}
static void input_handlers_seq_stop(struct seq_file *seq, void *v)
diff --git a/drivers/input/joystick/Kconfig b/drivers/input/joystick/Kconfig
index 12db72d..e2abe18 100644
--- a/drivers/input/joystick/Kconfig
+++ b/drivers/input/joystick/Kconfig
@@ -275,4 +275,11 @@
---help---
Say Y here if you want to take advantage of xbox 360 rumble features.
+config JOYSTICK_XPAD_LEDS
+ bool "LED Support for Xbox360 controller 'BigX' LED"
+ depends on LEDS_CLASS && JOYSTICK_XPAD
+ ---help---
+ This option enables support for the LED which surrounds the Big X on
+ XBox 360 controller.
+
endif
diff --git a/drivers/input/joystick/xpad.c b/drivers/input/joystick/xpad.c
index 244089c..2808039 100644
--- a/drivers/input/joystick/xpad.c
+++ b/drivers/input/joystick/xpad.c
@@ -191,13 +191,18 @@
unsigned char *idata; /* input data */
dma_addr_t idata_dma;
-#ifdef CONFIG_JOYSTICK_XPAD_FF
+#if defined(CONFIG_JOYSTICK_XPAD_FF) || defined(CONFIG_JOYSTICK_XPAD_LEDS)
struct urb *irq_out; /* urb for interrupt out report */
unsigned char *odata; /* output data */
dma_addr_t odata_dma;
+ struct mutex odata_mutex;
#endif
- char phys[65]; /* physical device path */
+#if defined(CONFIG_JOYSTICK_XPAD_LEDS)
+ struct xpad_led *led;
+#endif
+
+ char phys[64]; /* physical device path */
int dpad_mapping; /* map d-pad to buttons or to axes */
int xtype; /* type of xbox device */
@@ -349,7 +354,7 @@
__FUNCTION__, retval);
}
-#ifdef CONFIG_JOYSTICK_XPAD_FF
+#if defined(CONFIG_JOYSTICK_XPAD_FF) || defined(CONFIG_JOYSTICK_XPAD_LEDS)
static void xpad_irq_out(struct urb *urb)
{
int retval;
@@ -376,6 +381,60 @@
__FUNCTION__, retval);
}
+static int xpad_init_output(struct usb_interface *intf, struct usb_xpad *xpad)
+{
+ struct usb_endpoint_descriptor *ep_irq_out;
+ int error = -ENOMEM;
+
+ if (xpad->xtype != XTYPE_XBOX360)
+ return 0;
+
+ xpad->odata = usb_buffer_alloc(xpad->udev, XPAD_PKT_LEN,
+ GFP_ATOMIC, &xpad->odata_dma );
+ if (!xpad->odata)
+ goto fail1;
+
+ mutex_init(&xpad->odata_mutex);
+
+ xpad->irq_out = usb_alloc_urb(0, GFP_KERNEL);
+ if (!xpad->irq_out)
+ goto fail2;
+
+ ep_irq_out = &intf->cur_altsetting->endpoint[1].desc;
+ usb_fill_int_urb(xpad->irq_out, xpad->udev,
+ usb_sndintpipe(xpad->udev, ep_irq_out->bEndpointAddress),
+ xpad->odata, XPAD_PKT_LEN,
+ xpad_irq_out, xpad, ep_irq_out->bInterval);
+ xpad->irq_out->transfer_dma = xpad->odata_dma;
+ xpad->irq_out->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
+
+ return 0;
+
+ fail2: usb_buffer_free(xpad->udev, XPAD_PKT_LEN, xpad->odata, xpad->odata_dma);
+ fail1: return error;
+}
+
+static void xpad_stop_output(struct usb_xpad *xpad)
+{
+ if (xpad->xtype == XTYPE_XBOX360)
+ usb_kill_urb(xpad->irq_out);
+}
+
+static void xpad_deinit_output(struct usb_xpad *xpad)
+{
+ if (xpad->xtype == XTYPE_XBOX360) {
+ usb_free_urb(xpad->irq_out);
+ usb_buffer_free(xpad->udev, XPAD_PKT_LEN,
+ xpad->odata, xpad->odata_dma);
+ }
+}
+#else
+static int xpad_init_output(struct usb_interface *intf, struct usb_xpad *xpad) { return 0; }
+static void xpad_deinit_output(struct usb_xpad *xpad) {}
+static void xpad_stop_output(struct usb_xpad *xpad) {}
+#endif
+
+#ifdef CONFIG_JOYSTICK_XPAD_FF
static int xpad_play_effect(struct input_dev *dev, void *data,
struct ff_effect *effect)
{
@@ -398,64 +457,101 @@
return 0;
}
-static int xpad_init_ff(struct usb_interface *intf, struct usb_xpad *xpad)
+static int xpad_init_ff(struct usb_xpad *xpad)
{
- struct usb_endpoint_descriptor *ep_irq_out;
- int error = -ENOMEM;
+ input_set_capability(xpad->dev, EV_FF, FF_RUMBLE);
+
+ return input_ff_create_memless(xpad->dev, NULL, xpad_play_effect);
+}
+
+#else
+static int xpad_init_ff(struct usb_xpad *xpad) { return 0; }
+#endif
+
+#if defined(CONFIG_JOYSTICK_XPAD_LEDS)
+#include <linux/leds.h>
+
+struct xpad_led {
+ char name[16];
+ struct led_classdev led_cdev;
+ struct usb_xpad *xpad;
+};
+
+static void xpad_send_led_command(struct usb_xpad *xpad, int command)
+{
+ if (command >= 0 && command < 14) {
+ mutex_lock(&xpad->odata_mutex);
+ xpad->odata[0] = 0x01;
+ xpad->odata[1] = 0x03;
+ xpad->odata[2] = command;
+ usb_submit_urb(xpad->irq_out, GFP_KERNEL);
+ mutex_unlock(&xpad->odata_mutex);
+ }
+}
+
+static void xpad_led_set(struct led_classdev *led_cdev,
+ enum led_brightness value)
+{
+ struct xpad_led *xpad_led = container_of(led_cdev,
+ struct xpad_led, led_cdev);
+
+ xpad_send_led_command(xpad_led->xpad, value);
+}
+
+static int xpad_led_probe(struct usb_xpad *xpad)
+{
+ static atomic_t led_seq = ATOMIC_INIT(0);
+ long led_no;
+ struct xpad_led *led;
+ struct led_classdev *led_cdev;
+ int error;
if (xpad->xtype != XTYPE_XBOX360)
return 0;
- xpad->odata = usb_buffer_alloc(xpad->udev, XPAD_PKT_LEN,
- GFP_ATOMIC, &xpad->odata_dma );
- if (!xpad->odata)
- goto fail1;
+ xpad->led = led = kzalloc(sizeof(struct xpad_led), GFP_KERNEL);
+ if (!led)
+ return -ENOMEM;
- xpad->irq_out = usb_alloc_urb(0, GFP_KERNEL);
- if (!xpad->irq_out)
- goto fail2;
+ led_no = (long)atomic_inc_return(&led_seq) - 1;
- ep_irq_out = &intf->cur_altsetting->endpoint[1].desc;
- usb_fill_int_urb(xpad->irq_out, xpad->udev,
- usb_sndintpipe(xpad->udev, ep_irq_out->bEndpointAddress),
- xpad->odata, XPAD_PKT_LEN,
- xpad_irq_out, xpad, ep_irq_out->bInterval);
- xpad->irq_out->transfer_dma = xpad->odata_dma;
- xpad->irq_out->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
+ snprintf(led->name, sizeof(led->name), "xpad%ld", led_no);
+ led->xpad = xpad;
- input_set_capability(xpad->dev, EV_FF, FF_RUMBLE);
+ led_cdev = &led->led_cdev;
+ led_cdev->name = led->name;
+ led_cdev->brightness_set = xpad_led_set;
- error = input_ff_create_memless(xpad->dev, NULL, xpad_play_effect);
- if (error)
- goto fail2;
+ error = led_classdev_register(&xpad->udev->dev, led_cdev);
+ if (error) {
+ kfree(led);
+ xpad->led = NULL;
+ return error;
+ }
+
+ /*
+ * Light up the segment corresponding to controller number
+ */
+ xpad_send_led_command(xpad, (led_no % 4) + 2);
return 0;
-
- fail2: usb_buffer_free(xpad->udev, XPAD_PKT_LEN, xpad->odata, xpad->odata_dma);
- fail1: return error;
}
-static void xpad_stop_ff(struct usb_xpad *xpad)
+static void xpad_led_disconnect(struct usb_xpad *xpad)
{
- if (xpad->xtype == XTYPE_XBOX360)
- usb_kill_urb(xpad->irq_out);
-}
+ struct xpad_led *xpad_led = xpad->led;
-static void xpad_deinit_ff(struct usb_xpad *xpad)
-{
- if (xpad->xtype == XTYPE_XBOX360) {
- usb_free_urb(xpad->irq_out);
- usb_buffer_free(xpad->udev, XPAD_PKT_LEN,
- xpad->odata, xpad->odata_dma);
+ if (xpad_led) {
+ led_classdev_unregister(&xpad_led->led_cdev);
+ kfree(xpad_led->name);
}
}
-
#else
-static int xpad_init_ff(struct usb_interface *intf, struct usb_xpad *xpad) { return 0; }
-static void xpad_stop_ff(struct usb_xpad *xpad) { }
-static void xpad_deinit_ff(struct usb_xpad *xpad) { }
+static int xpad_led_probe(struct usb_xpad *xpad) { return 0; }
+static void xpad_led_disconnect(struct usb_xpad *xpad) { }
#endif
+
static int xpad_open(struct input_dev *dev)
{
struct usb_xpad *xpad = input_get_drvdata(dev);
@@ -472,7 +568,7 @@
struct usb_xpad *xpad = input_get_drvdata(dev);
usb_kill_urb(xpad->irq_in);
- xpad_stop_ff(xpad);
+ xpad_stop_output(xpad);
}
static void xpad_set_up_abs(struct input_dev *input_dev, signed short abs)
@@ -564,10 +660,18 @@
for (i = 0; xpad_abs_pad[i] >= 0; i++)
xpad_set_up_abs(input_dev, xpad_abs_pad[i]);
- error = xpad_init_ff(intf, xpad);
+ error = xpad_init_output(intf, xpad);
if (error)
goto fail2;
+ error = xpad_init_ff(xpad);
+ if (error)
+ goto fail3;
+
+ error = xpad_led_probe(xpad);
+ if (error)
+ goto fail3;
+
ep_irq_in = &intf->cur_altsetting->endpoint[0].desc;
usb_fill_int_urb(xpad->irq_in, udev,
usb_rcvintpipe(udev, ep_irq_in->bEndpointAddress),
@@ -578,12 +682,13 @@
error = input_register_device(xpad->dev);
if (error)
- goto fail3;
+ goto fail4;
usb_set_intfdata(intf, xpad);
return 0;
- fail3: usb_free_urb(xpad->irq_in);
+ fail4: usb_free_urb(xpad->irq_in);
+ fail3: xpad_deinit_output(xpad);
fail2: usb_buffer_free(udev, XPAD_PKT_LEN, xpad->idata, xpad->idata_dma);
fail1: input_free_device(input_dev);
kfree(xpad);
@@ -597,8 +702,9 @@
usb_set_intfdata(intf, NULL);
if (xpad) {
+ xpad_led_disconnect(xpad);
input_unregister_device(xpad->dev);
- xpad_deinit_ff(xpad);
+ xpad_deinit_output(xpad);
usb_free_urb(xpad->irq_in);
usb_buffer_free(xpad->udev, XPAD_PKT_LEN,
xpad->idata, xpad->idata_dma);
diff --git a/drivers/input/mouse/appletouch.c b/drivers/input/mouse/appletouch.c
index e321526..2bea1b2 100644
--- a/drivers/input/mouse/appletouch.c
+++ b/drivers/input/mouse/appletouch.c
@@ -155,6 +155,8 @@
int xy_acc[ATP_XSENSORS + ATP_YSENSORS];
int overflowwarn; /* overflow warning printed? */
int datalen; /* size of an USB urb transfer */
+ int idlecount; /* number of empty packets */
+ struct work_struct work;
};
#define dbg_dump(msg, tab) \
@@ -208,6 +210,55 @@
(productId == GEYSER4_JIS_PRODUCT_ID);
}
+/*
+ * By default Geyser 3 device sends standard USB HID mouse
+ * packets (Report ID 2). This code changes device mode, so it
+ * sends raw sensor reports (Report ID 5).
+ */
+static int atp_geyser3_init(struct usb_device *udev)
+{
+ char data[8];
+ int size;
+
+ size = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
+ ATP_GEYSER3_MODE_READ_REQUEST_ID,
+ USB_DIR_IN | USB_TYPE_CLASS | USB_RECIP_INTERFACE,
+ ATP_GEYSER3_MODE_REQUEST_VALUE,
+ ATP_GEYSER3_MODE_REQUEST_INDEX, &data, 8, 5000);
+
+ if (size != 8) {
+ err("Could not do mode read request from device"
+ " (Geyser 3 mode)");
+ return -EIO;
+ }
+
+ /* Apply the mode switch */
+ data[0] = ATP_GEYSER3_MODE_VENDOR_VALUE;
+
+ size = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
+ ATP_GEYSER3_MODE_WRITE_REQUEST_ID,
+ USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE,
+ ATP_GEYSER3_MODE_REQUEST_VALUE,
+ ATP_GEYSER3_MODE_REQUEST_INDEX, &data, 8, 5000);
+
+ if (size != 8) {
+ err("Could not do mode write request to device"
+ " (Geyser 3 mode)");
+ return -EIO;
+ }
+ return 0;
+}
+
+/* Reinitialise the device if it's a geyser 3 */
+static void atp_reinit(struct work_struct *work)
+{
+ struct atp *dev = container_of(work, struct atp, work);
+ struct usb_device *udev = dev->udev;
+
+ dev->idlecount = 0;
+ atp_geyser3_init(udev);
+}
+
static int atp_calculate_abs(int *xy_sensors, int nb_sensors, int fact,
int *z, int *fingers)
{
@@ -439,8 +490,8 @@
}
dev->x_old = x;
dev->y_old = y;
- }
- else if (!x && !y) {
+
+ } else if (!x && !y) {
dev->x_old = dev->y_old = -1;
input_report_key(dev->input, BTN_TOUCH, 0);
@@ -449,11 +500,21 @@
/* reset the accumulator on release */
memset(dev->xy_acc, 0, sizeof(dev->xy_acc));
+
+ /* Geyser 3 will continue to send packets continually after
+ the first touch unless reinitialised. Do so if it's been
+ idle for a while in order to avoid waking the kernel up
+ several hundred times a second */
+ if (atp_is_geyser_3(dev)) {
+ dev->idlecount++;
+ if (dev->idlecount == 10) {
+ dev->valid = 0;
+ schedule_work(&dev->work);
+ }
+ }
}
- input_report_key(dev->input, BTN_LEFT,
- !!dev->data[dev->datalen - 1]);
-
+ input_report_key(dev->input, BTN_LEFT, dev->data[dev->datalen - 1] & 1);
input_sync(dev->input);
exit:
@@ -480,6 +541,7 @@
struct atp *dev = input_get_drvdata(input);
usb_kill_urb(dev->urb);
+ cancel_work_sync(&dev->work);
dev->open = 0;
}
@@ -528,40 +590,10 @@
dev->datalen = 81;
if (atp_is_geyser_3(dev)) {
- /*
- * By default Geyser 3 device sends standard USB HID mouse
- * packets (Report ID 2). This code changes device mode, so it
- * sends raw sensor reports (Report ID 5).
- */
- char data[8];
- int size;
-
- size = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
- ATP_GEYSER3_MODE_READ_REQUEST_ID,
- USB_DIR_IN | USB_TYPE_CLASS | USB_RECIP_INTERFACE,
- ATP_GEYSER3_MODE_REQUEST_VALUE,
- ATP_GEYSER3_MODE_REQUEST_INDEX, &data, 8, 5000);
-
- if (size != 8) {
- err("Could not do mode read request from device"
- " (Geyser 3 mode)");
+ /* switch to raw sensor mode */
+ if (atp_geyser3_init(udev))
goto err_free_devs;
- }
- /* Apply the mode switch */
- data[0] = ATP_GEYSER3_MODE_VENDOR_VALUE;
-
- size = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
- ATP_GEYSER3_MODE_WRITE_REQUEST_ID,
- USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE,
- ATP_GEYSER3_MODE_REQUEST_VALUE,
- ATP_GEYSER3_MODE_REQUEST_INDEX, &data, 8, 5000);
-
- if (size != 8) {
- err("Could not do mode write request to device"
- " (Geyser 3 mode)");
- goto err_free_devs;
- }
printk("appletouch Geyser 3 inited.\n");
}
@@ -636,6 +668,8 @@
/* save our data pointer in this interface device */
usb_set_intfdata(iface, dev);
+ INIT_WORK(&dev->work, atp_reinit);
+
return 0;
err_free_buffer:
@@ -669,14 +703,17 @@
static int atp_suspend(struct usb_interface *iface, pm_message_t message)
{
struct atp *dev = usb_get_intfdata(iface);
+
usb_kill_urb(dev->urb);
dev->valid = 0;
+
return 0;
}
static int atp_resume(struct usb_interface *iface)
{
struct atp *dev = usb_get_intfdata(iface);
+
if (dev->open && usb_submit_urb(dev->urb, GFP_ATOMIC))
return -EIO;
diff --git a/drivers/input/mouse/lifebook.c b/drivers/input/mouse/lifebook.c
index 1740cad..91109b4 100644
--- a/drivers/input/mouse/lifebook.c
+++ b/drivers/input/mouse/lifebook.c
@@ -109,7 +109,7 @@
{
struct lifebook_data *priv = psmouse->private;
struct input_dev *dev1 = psmouse->dev;
- struct input_dev *dev2 = priv->dev2;
+ struct input_dev *dev2 = priv ? priv->dev2 : NULL;
unsigned char *packet = psmouse->packet;
int relative_packet = packet[0] & 0x08;
diff --git a/drivers/input/serio/i8042-x86ia64io.h b/drivers/input/serio/i8042-x86ia64io.h
index 4fca1e7..702a526 100644
--- a/drivers/input/serio/i8042-x86ia64io.h
+++ b/drivers/input/serio/i8042-x86ia64io.h
@@ -366,6 +366,7 @@
static int __init i8042_pnp_init(void)
{
char kbd_irq_str[4] = { 0 }, aux_irq_str[4] = { 0 };
+ int pnp_data_busted = 0;
int err;
if (i8042_nopnp) {
@@ -413,27 +414,48 @@
#endif
if (((i8042_pnp_data_reg & ~0xf) == (i8042_data_reg & ~0xf) &&
- i8042_pnp_data_reg != i8042_data_reg) || !i8042_pnp_data_reg) {
- printk(KERN_WARNING "PNP: PS/2 controller has invalid data port %#x; using default %#x\n",
+ i8042_pnp_data_reg != i8042_data_reg) ||
+ !i8042_pnp_data_reg) {
+ printk(KERN_WARNING
+ "PNP: PS/2 controller has invalid data port %#x; "
+ "using default %#x\n",
i8042_pnp_data_reg, i8042_data_reg);
i8042_pnp_data_reg = i8042_data_reg;
+ pnp_data_busted = 1;
}
if (((i8042_pnp_command_reg & ~0xf) == (i8042_command_reg & ~0xf) &&
- i8042_pnp_command_reg != i8042_command_reg) || !i8042_pnp_command_reg) {
- printk(KERN_WARNING "PNP: PS/2 controller has invalid command port %#x; using default %#x\n",
+ i8042_pnp_command_reg != i8042_command_reg) ||
+ !i8042_pnp_command_reg) {
+ printk(KERN_WARNING
+ "PNP: PS/2 controller has invalid command port %#x; "
+ "using default %#x\n",
i8042_pnp_command_reg, i8042_command_reg);
i8042_pnp_command_reg = i8042_command_reg;
+ pnp_data_busted = 1;
}
if (!i8042_nokbd && !i8042_pnp_kbd_irq) {
- printk(KERN_WARNING "PNP: PS/2 controller doesn't have KBD irq; using default %d\n", i8042_kbd_irq);
+ printk(KERN_WARNING
+ "PNP: PS/2 controller doesn't have KBD irq; "
+ "using default %d\n", i8042_kbd_irq);
i8042_pnp_kbd_irq = i8042_kbd_irq;
+ pnp_data_busted = 1;
}
if (!i8042_noaux && !i8042_pnp_aux_irq) {
- printk(KERN_WARNING "PNP: PS/2 controller doesn't have AUX irq; using default %d\n", i8042_aux_irq);
- i8042_pnp_aux_irq = i8042_aux_irq;
+ if (!pnp_data_busted && i8042_pnp_kbd_irq) {
+ printk(KERN_WARNING
+ "PNP: PS/2 appears to have AUX port disabled, "
+ "if this is incorrect please boot with "
+ "i8042.nopnp\n");
+ i8042_noaux = 1;
+ } else {
+ printk(KERN_WARNING
+ "PNP: PS/2 controller doesn't have AUX irq; "
+ "using default %d\n", i8042_aux_irq);
+ i8042_pnp_aux_irq = i8042_aux_irq;
+ }
}
i8042_data_reg = i8042_pnp_data_reg;
diff --git a/drivers/input/touchscreen/Kconfig b/drivers/input/touchscreen/Kconfig
index 6937177..f929fcd 100644
--- a/drivers/input/touchscreen/Kconfig
+++ b/drivers/input/touchscreen/Kconfig
@@ -54,6 +54,19 @@
To compile this driver as a module, choose M here: the
module will be called corgi_ts.
+config TOUCHSCREEN_FUJITSU
+ tristate "Fujitsu serial touchscreen"
+ select SERIO
+ help
+ Say Y here if you have the Fujitsu touchscreen (such as one
+ installed in Lifebook P series laptop) connected to your
+ system.
+
+ If unsure, say N.
+
+ To compile this driver as a module, choose M here: the
+ module will be called fujitsu-ts.
+
config TOUCHSCREEN_GUNZE
tristate "Gunze AHL-51S touchscreen"
select SERIO
diff --git a/drivers/input/touchscreen/Makefile b/drivers/input/touchscreen/Makefile
index 2f86d6a..5de8933 100644
--- a/drivers/input/touchscreen/Makefile
+++ b/drivers/input/touchscreen/Makefile
@@ -9,6 +9,7 @@
obj-$(CONFIG_TOUCHSCREEN_CORGI) += corgi_ts.o
obj-$(CONFIG_TOUCHSCREEN_GUNZE) += gunze.o
obj-$(CONFIG_TOUCHSCREEN_ELO) += elo.o
+obj-$(CONFIG_TOUCHSCREEN_FUJITSU) += fujitsu_ts.o
obj-$(CONFIG_TOUCHSCREEN_MTOUCH) += mtouch.o
obj-$(CONFIG_TOUCHSCREEN_MK712) += mk712.o
obj-$(CONFIG_TOUCHSCREEN_HP600) += hp680_ts_input.o
diff --git a/drivers/input/touchscreen/ads7846.c b/drivers/input/touchscreen/ads7846.c
index 1c9069c..96581d0 100644
--- a/drivers/input/touchscreen/ads7846.c
+++ b/drivers/input/touchscreen/ads7846.c
@@ -95,7 +95,7 @@
u16 dummy; /* for the pwrdown read */
struct ts_event tc;
- struct spi_transfer xfer[10];
+ struct spi_transfer xfer[18];
struct spi_message msg[5];
struct spi_message *last_msg;
int msg_idx;
@@ -107,6 +107,8 @@
u16 debounce_tol;
u16 debounce_rep;
+ u16 penirq_recheck_delay_usecs;
+
spinlock_t lock;
struct hrtimer timer;
unsigned pendown:1; /* P: lock */
@@ -553,6 +555,15 @@
return;
}
+ /* Maybe check the pendown state before reporting. This discards
+ * false readings when the pen is lifted.
+ */
+ if (ts->penirq_recheck_delay_usecs) {
+ udelay(ts->penirq_recheck_delay_usecs);
+ if (!ts->get_pendown_state())
+ Rt = 0;
+ }
+
/* NOTE: We can't rely on the pressure to determine the pen down
* state, even this controller has a pressure sensor. The pressure
* value can fluctuate for quite a while after lifting the pen and
@@ -896,6 +907,10 @@
ts->filter = ads7846_no_filter;
ts->get_pendown_state = pdata->get_pendown_state;
+ if (pdata->penirq_recheck_delay_usecs)
+ ts->penirq_recheck_delay_usecs =
+ pdata->penirq_recheck_delay_usecs;
+
snprintf(ts->phys, sizeof(ts->phys), "%s/input0", spi->dev.bus_id);
input_dev->name = "ADS784x Touchscreen";
@@ -936,6 +951,24 @@
x->len = 2;
spi_message_add_tail(x, m);
+ /* the first sample after switching drivers can be low quality;
+ * optionally discard it, using a second one after the signals
+ * have had enough time to stabilize.
+ */
+ if (pdata->settle_delay_usecs) {
+ x->delay_usecs = pdata->settle_delay_usecs;
+
+ x++;
+ x->tx_buf = &ts->read_y;
+ x->len = 1;
+ spi_message_add_tail(x, m);
+
+ x++;
+ x->rx_buf = &ts->tc.y;
+ x->len = 2;
+ spi_message_add_tail(x, m);
+ }
+
m->complete = ads7846_rx_val;
m->context = ts;
@@ -954,6 +987,21 @@
x->len = 2;
spi_message_add_tail(x, m);
+ /* ... maybe discard first sample ... */
+ if (pdata->settle_delay_usecs) {
+ x->delay_usecs = pdata->settle_delay_usecs;
+
+ x++;
+ x->tx_buf = &ts->read_x;
+ x->len = 1;
+ spi_message_add_tail(x, m);
+
+ x++;
+ x->rx_buf = &ts->tc.x;
+ x->len = 2;
+ spi_message_add_tail(x, m);
+ }
+
m->complete = ads7846_rx_val;
m->context = ts;
@@ -973,6 +1021,21 @@
x->len = 2;
spi_message_add_tail(x, m);
+ /* ... maybe discard first sample ... */
+ if (pdata->settle_delay_usecs) {
+ x->delay_usecs = pdata->settle_delay_usecs;
+
+ x++;
+ x->tx_buf = &ts->read_z1;
+ x->len = 1;
+ spi_message_add_tail(x, m);
+
+ x++;
+ x->rx_buf = &ts->tc.z1;
+ x->len = 2;
+ spi_message_add_tail(x, m);
+ }
+
m->complete = ads7846_rx_val;
m->context = ts;
@@ -990,6 +1053,21 @@
x->len = 2;
spi_message_add_tail(x, m);
+ /* ... maybe discard first sample ... */
+ if (pdata->settle_delay_usecs) {
+ x->delay_usecs = pdata->settle_delay_usecs;
+
+ x++;
+ x->tx_buf = &ts->read_z2;
+ x->len = 1;
+ spi_message_add_tail(x, m);
+
+ x++;
+ x->rx_buf = &ts->tc.z2;
+ x->len = 2;
+ spi_message_add_tail(x, m);
+ }
+
m->complete = ads7846_rx_val;
m->context = ts;
}
diff --git a/drivers/input/touchscreen/fujitsu_ts.c b/drivers/input/touchscreen/fujitsu_ts.c
new file mode 100644
index 0000000..daf7a4a
--- /dev/null
+++ b/drivers/input/touchscreen/fujitsu_ts.c
@@ -0,0 +1,189 @@
+/*
+ * Fujitsu serial touchscreen driver
+ *
+ * Copyright (c) Dmitry Torokhov <dtor@mail.ru>
+ */
+
+/*
+ * 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/errno.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/input.h>
+#include <linux/serio.h>
+#include <linux/init.h>
+
+#define DRIVER_DESC "Fujitsu serial touchscreen driver"
+
+MODULE_AUTHOR("Dmitry Torokhov <dtor@mail.ru>");
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
+
+#define FUJITSU_LENGTH 5
+
+/*
+ * Per-touchscreen data.
+ */
+struct fujitsu {
+ struct input_dev *dev;
+ struct serio *serio;
+ int idx;
+ unsigned char data[FUJITSU_LENGTH];
+ char phys[32];
+};
+
+/*
+ * Decode serial data (5 bytes per packet)
+ * First byte
+ * 1 C 0 0 R S S S
+ * Where C is 1 while in calibration mode (which we don't use)
+ * R is 1 when no coordinate corection was done.
+ * S are button state
+ */
+static irqreturn_t fujitsu_interrupt(struct serio *serio,
+ unsigned char data, unsigned int flags)
+{
+ struct fujitsu *fujitsu = serio_get_drvdata(serio);
+ struct input_dev *dev = fujitsu->dev;
+
+ if (fujitsu->idx == 0) {
+ /* resync skip until start of frame */
+ if ((data & 0xf0) != 0x80)
+ return IRQ_HANDLED;
+ } else {
+ /* resync skip garbage */
+ if (data & 0x80) {
+ fujitsu->idx = 0;
+ return IRQ_HANDLED;
+ }
+ }
+
+ fujitsu->data[fujitsu->idx++] = data;
+ if (fujitsu->idx == FUJITSU_LENGTH) {
+ input_report_abs(dev, ABS_X,
+ (fujitsu->data[2] << 7) | fujitsu->data[1]);
+ input_report_abs(dev, ABS_Y,
+ (fujitsu->data[4] << 7) | fujitsu->data[3]);
+ input_report_key(dev, BTN_TOUCH,
+ (fujitsu->data[0] & 0x03) != 2);
+ input_sync(dev);
+ fujitsu->idx = 0;
+ }
+
+ return IRQ_HANDLED;
+}
+
+/*
+ * fujitsu_disconnect() is the opposite of fujitsu_connect()
+ */
+static void fujitsu_disconnect(struct serio *serio)
+{
+ struct fujitsu *fujitsu = serio_get_drvdata(serio);
+
+ input_get_device(fujitsu->dev);
+ input_unregister_device(fujitsu->dev);
+ serio_close(serio);
+ serio_set_drvdata(serio, NULL);
+ input_put_device(fujitsu->dev);
+ kfree(fujitsu);
+}
+
+/*
+ * fujitsu_connect() is the routine that is called when someone adds a
+ * new serio device that supports the Fujitsu protocol and registers it
+ * as input device.
+ */
+static int fujitsu_connect(struct serio *serio, struct serio_driver *drv)
+{
+ struct fujitsu *fujitsu;
+ struct input_dev *input_dev;
+ int err;
+
+ fujitsu = kzalloc(sizeof(struct fujitsu), GFP_KERNEL);
+ input_dev = input_allocate_device();
+ if (!fujitsu || !input_dev) {
+ err = -ENOMEM;
+ goto fail1;
+ }
+
+ fujitsu->serio = serio;
+ fujitsu->dev = input_dev;
+ snprintf(fujitsu->phys, sizeof(fujitsu->phys),
+ "%s/input0", serio->phys);
+
+ input_dev->name = "Fujitsu Serial Touchscreen";
+ input_dev->phys = fujitsu->phys;
+ input_dev->id.bustype = BUS_RS232;
+ input_dev->id.vendor = SERIO_FUJITSU;
+ input_dev->id.product = 0;
+ input_dev->id.version = 0x0100;
+ input_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_ABS);
+ input_dev->keybit[LONG(BTN_TOUCH)] = BIT(BTN_TOUCH);
+
+ input_set_abs_params(input_dev, ABS_X, 0, 4096, 0, 0);
+ input_set_abs_params(input_dev, ABS_Y, 0, 4096, 0, 0);
+ serio_set_drvdata(serio, fujitsu);
+
+ err = serio_open(serio, drv);
+ if (err)
+ goto fail2;
+
+ err = input_register_device(fujitsu->dev);
+ if (err)
+ goto fail3;
+
+ return 0;
+
+ fail3:
+ serio_close(serio);
+ fail2:
+ serio_set_drvdata(serio, NULL);
+ fail1:
+ input_free_device(input_dev);
+ kfree(fujitsu);
+ return err;
+}
+
+/*
+ * The serio driver structure.
+ */
+static struct serio_device_id fujitsu_serio_ids[] = {
+ {
+ .type = SERIO_RS232,
+ .proto = SERIO_FUJITSU,
+ .id = SERIO_ANY,
+ .extra = SERIO_ANY,
+ },
+ { 0 }
+};
+
+MODULE_DEVICE_TABLE(serio, fujitsu_serio_ids);
+
+static struct serio_driver fujitsu_drv = {
+ .driver = {
+ .name = "fujitsu_ts",
+ },
+ .description = DRIVER_DESC,
+ .id_table = fujitsu_serio_ids,
+ .interrupt = fujitsu_interrupt,
+ .connect = fujitsu_connect,
+ .disconnect = fujitsu_disconnect,
+};
+
+static int __init fujitsu_init(void)
+{
+ return serio_register_driver(&fujitsu_drv);
+}
+
+static void __exit fujitsu_exit(void)
+{
+ serio_unregister_driver(&fujitsu_drv);
+}
+
+module_init(fujitsu_init);
+module_exit(fujitsu_exit);
diff --git a/include/linux/input.h b/include/linux/input.h
index 18c98b5..e02c6a6 100644
--- a/include/linux/input.h
+++ b/include/linux/input.h
@@ -344,7 +344,8 @@
#define KEY_BRIGHTNESSUP 225
#define KEY_MEDIA 226
-#define KEY_SWITCHVIDEOMODE 227
+#define KEY_SWITCHVIDEOMODE 227 /* Cycle between available video
+ outputs (Monitor/LCD/TV-out/etc) */
#define KEY_KBDILLUMTOGGLE 228
#define KEY_KBDILLUMDOWN 229
#define KEY_KBDILLUMUP 230
diff --git a/include/linux/serio.h b/include/linux/serio.h
index d9377ce..9f38250 100644
--- a/include/linux/serio.h
+++ b/include/linux/serio.h
@@ -210,5 +210,6 @@
#define SERIO_TOUCHRIGHT 0x32
#define SERIO_TOUCHWIN 0x33
#define SERIO_TAOSEVM 0x34
+#define SERIO_FUJITSU 0x35
#endif
diff --git a/include/linux/spi/ads7846.h b/include/linux/spi/ads7846.h
index 3387e44..334d314 100644
--- a/include/linux/spi/ads7846.h
+++ b/include/linux/spi/ads7846.h
@@ -16,6 +16,20 @@
u16 vref_delay_usecs; /* 0 for external vref; etc */
int keep_vref_on:1; /* set to keep vref on for differential
* measurements as well */
+
+ /* Settling time of the analog signals; a function of Vcc and the
+ * capacitance on the X/Y drivers. If set to non-zero, two samples
+ * are taken with settle_delay us apart, and the second one is used.
+ * ~150 uSec with 0.01uF caps.
+ */
+ u16 settle_delay_usecs;
+
+ /* If set to non-zero, after samples are taken this delay is applied
+ * and penirq is rechecked, to help avoid false events. This value
+ * is affected by the material used to build the touch layer.
+ */
+ u16 penirq_recheck_delay_usecs;
+
u16 x_plate_ohms;
u16 y_plate_ohms;