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Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input

Browse source 
* '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
This commit is contained in:
Linus Torvalds 2007-07-20 09:16:07 -07:00
commit d638d4990b
13 changed files with 566 additions and 118 deletions
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29
drivers/input/input.c
View file

@ -471,37 +471,16 @@ static unsigned int input_proc_devices_poll(struct file *file, poll_table *wait)
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 @@ static void *input_handlers_seq_start(struct seq_file *seq, loff_t *pos)
{
/* 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)

7
drivers/input/joystick/Kconfig
View file

@ -275,4 +275,11 @@ config JOYSTICK_XPAD_FF
---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

198
drivers/input/joystick/xpad.c
View file

@ -191,13 +191,18 @@ struct usb_xpad {
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 @@ static void xpad_irq_in(struct urb *urb)
__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 @@ static void xpad_irq_out(struct urb *urb)
__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 @@ static int xpad_play_effect(struct input_dev *dev, void *data,
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 @@ static void xpad_close(struct input_dev *dev)
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 @@ static int xpad_probe(struct usb_interface *intf, const struct usb_device_id *id
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 @@ static int xpad_probe(struct usb_interface *intf, const struct usb_device_id *id
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 @@ static void xpad_disconnect(struct usb_interface *intf)
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);

111
drivers/input/mouse/appletouch.c
View file

@ -155,6 +155,8 @@ struct atp {
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 @@ static inline int atp_is_geyser_3(struct atp *dev)
(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 @@ static void atp_complete(struct urb* urb)
}
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 @@ static void atp_complete(struct urb* urb)
/* 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 @@ static void atp_close(struct input_dev *input)
struct atp *dev = input_get_drvdata(input);
usb_kill_urb(dev->urb);
cancel_work_sync(&dev->work);
dev->open = 0;
}
@ -528,40 +590,10 @@ static int atp_probe(struct usb_interface *iface, const struct usb_device_id *id
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 @@ static int atp_probe(struct usb_interface *iface, const struct usb_device_id *id
/* 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 void atp_disconnect(struct usb_interface *iface)
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;

2
drivers/input/mouse/lifebook.c
View file

@ -109,7 +109,7 @@ static psmouse_ret_t lifebook_process_byte(struct psmouse *psmouse)
{
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;

36
drivers/input/serio/i8042-x86ia64io.h
View file

@ -366,6 +366,7 @@ static void i8042_pnp_exit(void)
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 @@ static int __init i8042_pnp_init(void)
#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;

13
drivers/input/touchscreen/Kconfig
View file

@ -54,6 +54,19 @@ config TOUCHSCREEN_CORGI
To compile this driver as a module, choose M here: the
module will be called corgi_ts.
config TOUCHSCREEN_FUJITSU
tristate "Fujitsu serial touchscreen"
select SERIO
help
Say Y here if you have the Fujitsu touchscreen (such as one
installed in Lifebook P series laptop) connected to your
system.
If unsure, say N.
To compile this driver as a module, choose M here: the
module will be called fujitsu-ts.
config TOUCHSCREEN_GUNZE
tristate "Gunze AHL-51S touchscreen"
select SERIO

1
drivers/input/touchscreen/Makefile
View file

@ -9,6 +9,7 @@ obj-$(CONFIG_TOUCHSCREEN_BITSY) += h3600_ts_input.o
obj-$(CONFIG_TOUCHSCREEN_CORGI) += corgi_ts.o
obj-$(CONFIG_TOUCHSCREEN_GUNZE) += gunze.o
obj-$(CONFIG_TOUCHSCREEN_ELO) += elo.o
obj-$(CONFIG_TOUCHSCREEN_FUJITSU) += fujitsu_ts.o
obj-$(CONFIG_TOUCHSCREEN_MTOUCH) += mtouch.o
obj-$(CONFIG_TOUCHSCREEN_MK712) += mk712.o
obj-$(CONFIG_TOUCHSCREEN_HP600) += hp680_ts_input.o

80
drivers/input/touchscreen/ads7846.c
View file

@ -95,7 +95,7 @@ struct ads7846 {
u16 dummy; /* for the pwrdown read */
struct ts_event tc;
struct spi_transfer xfer[10];
struct spi_transfer xfer[18];
struct spi_message msg[5];
struct spi_message *last_msg;
int msg_idx;
@ -107,6 +107,8 @@ struct ads7846 {
u16 debounce_tol;
u16 debounce_rep;
u16 penirq_recheck_delay_usecs;
spinlock_t lock;
struct hrtimer timer;
unsigned pendown:1; /* P: lock */
@ -553,6 +555,15 @@ static void ads7846_rx(void *ads)
return;
}
/* Maybe check the pendown state before reporting. This discards
* false readings when the pen is lifted.
*/
if (ts->penirq_recheck_delay_usecs) {
udelay(ts->penirq_recheck_delay_usecs);
if (!ts->get_pendown_state())
Rt = 0;
}
/* NOTE: We can't rely on the pressure to determine the pen down
* state, even this controller has a pressure sensor. The pressure
* value can fluctuate for quite a while after lifting the pen and
@ -896,6 +907,10 @@ static int __devinit ads7846_probe(struct spi_device *spi)
ts->filter = ads7846_no_filter;
ts->get_pendown_state = pdata->get_pendown_state;
if (pdata->penirq_recheck_delay_usecs)
ts->penirq_recheck_delay_usecs =
pdata->penirq_recheck_delay_usecs;
snprintf(ts->phys, sizeof(ts->phys), "%s/input0", spi->dev.bus_id);
input_dev->name = "ADS784x Touchscreen";
@ -936,6 +951,24 @@ static int __devinit ads7846_probe(struct spi_device *spi)
x->len = 2;
spi_message_add_tail(x, m);
/* the first sample after switching drivers can be low quality;
* optionally discard it, using a second one after the signals
* have had enough time to stabilize.
*/
if (pdata->settle_delay_usecs) {
x->delay_usecs = pdata->settle_delay_usecs;
x++;
x->tx_buf = &ts->read_y;
x->len = 1;
spi_message_add_tail(x, m);
x++;
x->rx_buf = &ts->tc.y;
x->len = 2;
spi_message_add_tail(x, m);
}
m->complete = ads7846_rx_val;
m->context = ts;
@ -954,6 +987,21 @@ static int __devinit ads7846_probe(struct spi_device *spi)
x->len = 2;
spi_message_add_tail(x, m);
/* ... maybe discard first sample ... */
if (pdata->settle_delay_usecs) {
x->delay_usecs = pdata->settle_delay_usecs;
x++;
x->tx_buf = &ts->read_x;
x->len = 1;
spi_message_add_tail(x, m);
x++;
x->rx_buf = &ts->tc.x;
x->len = 2;
spi_message_add_tail(x, m);
}
m->complete = ads7846_rx_val;
m->context = ts;
@ -973,6 +1021,21 @@ static int __devinit ads7846_probe(struct spi_device *spi)
x->len = 2;
spi_message_add_tail(x, m);
/* ... maybe discard first sample ... */
if (pdata->settle_delay_usecs) {
x->delay_usecs = pdata->settle_delay_usecs;
x++;
x->tx_buf = &ts->read_z1;
x->len = 1;
spi_message_add_tail(x, m);
x++;
x->rx_buf = &ts->tc.z1;
x->len = 2;
spi_message_add_tail(x, m);
}
m->complete = ads7846_rx_val;
m->context = ts;
@ -990,6 +1053,21 @@ static int __devinit ads7846_probe(struct spi_device *spi)
x->len = 2;
spi_message_add_tail(x, m);
/* ... maybe discard first sample ... */
if (pdata->settle_delay_usecs) {
x->delay_usecs = pdata->settle_delay_usecs;
x++;
x->tx_buf = &ts->read_z2;
x->len = 1;
spi_message_add_tail(x, m);
x++;
x->rx_buf = &ts->tc.z2;
x->len = 2;
spi_message_add_tail(x, m);
}
m->complete = ads7846_rx_val;
m->context = ts;
}

189
drivers/input/touchscreen/fujitsu_ts.c Normal file
View file

@ -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);

3
include/linux/input.h
View file

@ -344,7 +344,8 @@ struct input_absinfo {
#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

1
include/linux/serio.h
View file

@ -210,5 +210,6 @@ static inline void serio_unpin_driver(struct serio *serio)
#define SERIO_TOUCHRIGHT 0x32
#define SERIO_TOUCHWIN 0x33
#define SERIO_TAOSEVM 0x34
#define SERIO_FUJITSU 0x35
#endif

14
include/linux/spi/ads7846.h
View file

@ -16,6 +16,20 @@ struct ads7846_platform_data {
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;