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path: root/drivers/usb/input/mtouchusb.c
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Diffstat (limited to 'drivers/usb/input/mtouchusb.c')
-rw-r--r--drivers/usb/input/mtouchusb.c118
1 files changed, 55 insertions, 63 deletions
diff --git a/drivers/usb/input/mtouchusb.c b/drivers/usb/input/mtouchusb.c
index ff9275057a1..52cc18cd247 100644
--- a/drivers/usb/input/mtouchusb.c
+++ b/drivers/usb/input/mtouchusb.c
@@ -40,13 +40,6 @@
*****************************************************************************/
#include <linux/config.h>
-
-#ifdef CONFIG_USB_DEBUG
- #define DEBUG
-#else
- #undef DEBUG
-#endif
-
#include <linux/kernel.h>
#include <linux/slab.h>
#include <linux/input.h>
@@ -98,7 +91,7 @@ struct mtouch_usb {
dma_addr_t data_dma;
struct urb *irq;
struct usb_device *udev;
- struct input_dev input;
+ struct input_dev *input;
char name[128];
char phys[64];
};
@@ -135,14 +128,14 @@ static void mtouchusb_irq(struct urb *urb, struct pt_regs *regs)
goto exit;
}
- input_regs(&mtouch->input, regs);
- input_report_key(&mtouch->input, BTN_TOUCH,
+ input_regs(mtouch->input, regs);
+ input_report_key(mtouch->input, BTN_TOUCH,
MTOUCHUSB_GET_TOUCHED(mtouch->data));
- input_report_abs(&mtouch->input, ABS_X, MTOUCHUSB_GET_XC(mtouch->data));
- input_report_abs(&mtouch->input, ABS_Y,
+ input_report_abs(mtouch->input, ABS_X, MTOUCHUSB_GET_XC(mtouch->data));
+ input_report_abs(mtouch->input, ABS_Y,
(raw_coordinates ? MTOUCHUSB_MAX_RAW_YC : MTOUCHUSB_MAX_CALIB_YC)
- MTOUCHUSB_GET_YC(mtouch->data));
- input_sync(&mtouch->input);
+ input_sync(mtouch->input);
exit:
retval = usb_submit_urb(urb, GFP_ATOMIC);
@@ -195,10 +188,10 @@ static void mtouchusb_free_buffers(struct usb_device *udev, struct mtouch_usb *m
static int mtouchusb_probe(struct usb_interface *intf, const struct usb_device_id *id)
{
struct mtouch_usb *mtouch;
+ struct input_dev *input_dev;
struct usb_host_interface *interface;
struct usb_endpoint_descriptor *endpoint;
struct usb_device *udev = interface_to_usbdev(intf);
- char path[64];
int nRet;
dbg("%s - called", __FUNCTION__);
@@ -209,57 +202,55 @@ static int mtouchusb_probe(struct usb_interface *intf, const struct usb_device_i
dbg("%s - setting endpoint", __FUNCTION__);
endpoint = &interface->endpoint[0].desc;
- if (!(mtouch = kmalloc(sizeof(struct mtouch_usb), GFP_KERNEL))) {
+ mtouch = kzalloc(sizeof(struct mtouch_usb), GFP_KERNEL);
+ input_dev = input_allocate_device();
+ if (!mtouch || !input_dev) {
err("%s - Out of memory.", __FUNCTION__);
- return -ENOMEM;
+ goto fail1;
}
- memset(mtouch, 0, sizeof(struct mtouch_usb));
- mtouch->udev = udev;
-
dbg("%s - allocating buffers", __FUNCTION__);
- if (mtouchusb_alloc_buffers(udev, mtouch)) {
- mtouchusb_free_buffers(udev, mtouch);
- kfree(mtouch);
- return -ENOMEM;
- }
+ if (mtouchusb_alloc_buffers(udev, mtouch))
+ goto fail2;
- mtouch->input.private = mtouch;
- mtouch->input.open = mtouchusb_open;
- mtouch->input.close = mtouchusb_close;
-
- usb_make_path(udev, path, 64);
- sprintf(mtouch->phys, "%s/input0", path);
-
- mtouch->input.name = mtouch->name;
- mtouch->input.phys = mtouch->phys;
- usb_to_input_id(udev, &mtouch->input.id);
- mtouch->input.dev = &intf->dev;
-
- mtouch->input.evbit[0] = BIT(EV_KEY) | BIT(EV_ABS);
- mtouch->input.absbit[0] = BIT(ABS_X) | BIT(ABS_Y);
- mtouch->input.keybit[LONG(BTN_TOUCH)] = BIT(BTN_TOUCH);
-
- /* Used to Scale Compensated Data and Flip Y */
- mtouch->input.absmin[ABS_X] = MTOUCHUSB_MIN_XC;
- mtouch->input.absmax[ABS_X] = raw_coordinates ?
- MTOUCHUSB_MAX_RAW_XC : MTOUCHUSB_MAX_CALIB_XC;
- mtouch->input.absfuzz[ABS_X] = MTOUCHUSB_XC_FUZZ;
- mtouch->input.absflat[ABS_X] = MTOUCHUSB_XC_FLAT;
- mtouch->input.absmin[ABS_Y] = MTOUCHUSB_MIN_YC;
- mtouch->input.absmax[ABS_Y] = raw_coordinates ?
- MTOUCHUSB_MAX_RAW_YC : MTOUCHUSB_MAX_CALIB_YC;
- mtouch->input.absfuzz[ABS_Y] = MTOUCHUSB_YC_FUZZ;
- mtouch->input.absflat[ABS_Y] = MTOUCHUSB_YC_FLAT;
+ mtouch->udev = udev;
+ mtouch->input = input_dev;
if (udev->manufacturer)
- strcat(mtouch->name, udev->manufacturer);
- if (udev->product)
- sprintf(mtouch->name, "%s %s", mtouch->name, udev->product);
+ strlcpy(mtouch->name, udev->manufacturer, sizeof(mtouch->name));
+
+ if (udev->product) {
+ if (udev->manufacturer)
+ strlcat(mtouch->name, " ", sizeof(mtouch->name));
+ strlcat(mtouch->name, udev->product, sizeof(mtouch->name));
+ }
if (!strlen(mtouch->name))
- sprintf(mtouch->name, "USB Touchscreen %04x:%04x",
- mtouch->input.id.vendor, mtouch->input.id.product);
+ snprintf(mtouch->name, sizeof(mtouch->name),
+ "USB Touchscreen %04x:%04x",
+ le16_to_cpu(udev->descriptor.idVendor),
+ le16_to_cpu(udev->descriptor.idProduct));
+
+ usb_make_path(udev, mtouch->phys, sizeof(mtouch->phys));
+ strlcpy(mtouch->phys, "/input0", sizeof(mtouch->phys));
+
+ input_dev->name = mtouch->name;
+ input_dev->phys = mtouch->phys;
+ usb_to_input_id(udev, &input_dev->id);
+ input_dev->cdev.dev = &intf->dev;
+ input_dev->private = mtouch;
+
+ input_dev->open = mtouchusb_open;
+ input_dev->close = mtouchusb_close;
+
+ 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, MTOUCHUSB_MIN_XC,
+ raw_coordinates ? MTOUCHUSB_MAX_RAW_XC : MTOUCHUSB_MAX_CALIB_XC,
+ MTOUCHUSB_XC_FUZZ, MTOUCHUSB_XC_FLAT);
+ input_set_abs_params(input_dev, ABS_Y, MTOUCHUSB_MIN_YC,
+ raw_coordinates ? MTOUCHUSB_MAX_RAW_YC : MTOUCHUSB_MAX_CALIB_YC,
+ MTOUCHUSB_YC_FUZZ, MTOUCHUSB_YC_FLAT);
nRet = usb_control_msg(mtouch->udev, usb_rcvctrlpipe(udev, 0),
MTOUCHUSB_RESET,
@@ -272,9 +263,7 @@ static int mtouchusb_probe(struct usb_interface *intf, const struct usb_device_i
mtouch->irq = usb_alloc_urb(0, GFP_KERNEL);
if (!mtouch->irq) {
dbg("%s - usb_alloc_urb failed: mtouch->irq", __FUNCTION__);
- mtouchusb_free_buffers(udev, mtouch);
- kfree(mtouch);
- return -ENOMEM;
+ goto fail2;
}
dbg("%s - usb_fill_int_urb", __FUNCTION__);
@@ -284,7 +273,7 @@ static int mtouchusb_probe(struct usb_interface *intf, const struct usb_device_i
mtouchusb_irq, mtouch, endpoint->bInterval);
dbg("%s - input_register_device", __FUNCTION__);
- input_register_device(&mtouch->input);
+ input_register_device(mtouch->input);
nRet = usb_control_msg(mtouch->udev, usb_rcvctrlpipe(udev, 0),
MTOUCHUSB_ASYNC_REPORT,
@@ -293,10 +282,13 @@ static int mtouchusb_probe(struct usb_interface *intf, const struct usb_device_i
dbg("%s - usb_control_msg - MTOUCHUSB_ASYNC_REPORT - bytes|err: %d",
__FUNCTION__, nRet);
- printk(KERN_INFO "input: %s on %s\n", mtouch->name, path);
usb_set_intfdata(intf, mtouch);
-
return 0;
+
+fail2: mtouchusb_free_buffers(udev, mtouch);
+fail1: input_free_device(input_dev);
+ kfree(mtouch);
+ return -ENOMEM;
}
static void mtouchusb_disconnect(struct usb_interface *intf)
@@ -308,7 +300,7 @@ static void mtouchusb_disconnect(struct usb_interface *intf)
if (mtouch) {
dbg("%s - mtouch is initialized, cleaning up", __FUNCTION__);
usb_kill_urb(mtouch->irq);
- input_unregister_device(&mtouch->input);
+ input_unregister_device(mtouch->input);
usb_free_urb(mtouch->irq);
mtouchusb_free_buffers(interface_to_usbdev(intf), mtouch);
kfree(mtouch);
generated by cgit v1.2.3-18-g5258 (git 2.32.0) at 2024-12-15 22:32:23 +0000