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)];
}
/*
- * Pass event through all open handles. This function is called with
+ * Pass event first through all filters and then, if event has not been
+ * filtered out, through all open handles. This function is called with
* dev->event_lock held and interrupts disabled.
*/
static void input_pass_event(struct input_dev *dev,
unsigned int type, unsigned int code, int value)
{
+ struct input_handler *handler;
struct input_handle *handle;
rcu_read_lock();
handle = rcu_dereference(dev->grab);
if (handle)
handle->handler->event(handle, type, code, value);
- else
- list_for_each_entry_rcu(handle, &dev->h_list, d_node)
- if (handle->open)
- handle->handler->event(handle,
- type, code, value);
+ else {
+ bool filtered = false;
+
+ list_for_each_entry_rcu(handle, &dev->h_list, d_node) {
+ if (!handle->open)
+ continue;
+
+ handler = handle->handler;
+ if (!handler->filter) {
+ if (filtered)
+ break;
+
+ handler->event(handle, type, code, value);
+
+ } else if (handler->filter(handle, type, code, value))
+ filtered = true;
+ }
+ }
+
rcu_read_unlock();
}
}
}
- clear_bit(old_keycode, dev->keybit);
- set_bit(keycode, dev->keybit);
+ __clear_bit(old_keycode, dev->keybit);
+ __set_bit(keycode, dev->keybit);
for (i = 0; i < dev->keycodemax; i++) {
if (input_fetch_keycode(dev, i) == old_keycode) {
- set_bit(old_keycode, dev->keybit);
+ __set_bit(old_keycode, dev->keybit);
break; /* Setting the bit twice is useless, so break */
}
}
if (retval)
goto out;
+ /* Make sure KEY_RESERVED did not get enabled. */
+ __clear_bit(KEY_RESERVED, dev->keybit);
+
/*
* Simulate keyup event if keycode is not present
* in the keymap anymore
if (i != BITS_TO_LONGS(max)) \
continue;
- static const struct input_device_id *input_match_device(const struct input_device_id *id,
+ static const struct input_device_id *input_match_device(struct input_handler *handler,
struct input_dev *dev)
{
+ const struct input_device_id *id;
int i;
- for (; id->flags || id->driver_info; id++) {
+ for (id = handler->id_table; id->flags || id->driver_info; id++) {
if (id->flags & INPUT_DEVICE_ID_MATCH_BUS)
if (id->bustype != dev->id.bustype)
MATCH_BIT(ffbit, FF_MAX);
MATCH_BIT(swbit, SW_MAX);
- return id;
+ if (!handler->match || handler->match(handler, dev))
+ return id;
}
return NULL;
const struct input_device_id *id;
int error;
- if (handler->blacklist && input_match_device(handler->blacklist, dev))
- return -ENODEV;
-
- id = input_match_device(handler->id_table, dev);
+ id = input_match_device(handler, dev);
if (!id)
return -ENODEV;
union input_seq_state *state = (union input_seq_state *)&seq->private;
seq_printf(seq, "N: Number=%u Name=%s", state->pos, handler->name);
+ if (handler->filter)
+ seq_puts(seq, " (filter)");
if (handler->fops)
seq_printf(seq, " Minor=%d", handler->minor);
seq_putc(seq, '\n');
}
EXPORT_SYMBOL(input_set_capability);
+ #define INPUT_CLEANSE_BITMASK(dev, type, bits) \
+ do { \
+ if (!test_bit(EV_##type, dev->evbit)) \
+ memset(dev->bits##bit, 0, \
+ sizeof(dev->bits##bit)); \
+ } while (0)
+
+ static void input_cleanse_bitmasks(struct input_dev *dev)
+ {
+ INPUT_CLEANSE_BITMASK(dev, KEY, key);
+ INPUT_CLEANSE_BITMASK(dev, REL, rel);
+ INPUT_CLEANSE_BITMASK(dev, ABS, abs);
+ INPUT_CLEANSE_BITMASK(dev, MSC, msc);
+ INPUT_CLEANSE_BITMASK(dev, LED, led);
+ INPUT_CLEANSE_BITMASK(dev, SND, snd);
+ INPUT_CLEANSE_BITMASK(dev, FF, ff);
+ INPUT_CLEANSE_BITMASK(dev, SW, sw);
+ }
+
/**
* input_register_device - register device with input core
* @dev: device to be registered
const char *path;
int error;
+ /* Every input device generates EV_SYN/SYN_REPORT events. */
__set_bit(EV_SYN, dev->evbit);
+ /* KEY_RESERVED is not supposed to be transmitted to userspace. */
+ __clear_bit(KEY_RESERVED, dev->keybit);
+
+ /* Make sure that bitmasks not mentioned in dev->evbit are clean. */
+ input_cleanse_bitmasks(dev);
+
/*
* If delay and period are pre-set by the driver, then autorepeating
* is handled by the driver itself and we don't do it in input.c.
*/
-
init_timer(&dev->timer);
if (!dev->rep[REP_DELAY] && !dev->rep[REP_PERIOD]) {
dev->timer.data = (long) dev;
error = mutex_lock_interruptible(&dev->mutex);
if (error)
return error;
- list_add_tail_rcu(&handle->d_node, &dev->h_list);
+
+ /*
+ * Filters go to the head of the list, normal handlers
+ * to the tail.
+ */
+ if (handler->filter)
+ list_add_rcu(&handle->d_node, &dev->h_list);
+ else
+ list_add_tail_rcu(&handle->d_node, &dev->h_list);
+
mutex_unlock(&dev->mutex);
/*
* - 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)
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 */
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;
DEVTYPE_E2I,
DEVTYPE_ZYTRONIC,
DEVTYPE_TC5UH,
+ DEVTYPE_NEXIO,
};
#define USB_DEVICE_HID_CLASS(vend, prod) \
.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},
{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
+
{}
};
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);
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);
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);
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;
#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;
}
#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 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,
},
.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
};
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);
{
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))
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;
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();
goto out_free_buffers;
}
- usbtouch->udev = udev;
+ usbtouch->interface = intf;
usbtouch->input = input_dev;
if (udev->manufacturer)
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;
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:
/* 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);
}
projects / firefly-linux-kernel-4.4.55.git / commitdiff