* Copyright (c) 1999 Andreas Gal
* Copyright (c) 2000-2005 Vojtech Pavlik <vojtech@suse.cz>
* Copyright (c) 2005 Michael Haboustak <mike-@cinci.rr.com> for Concept2, Inc
- * Copyright (c) 2006-2007 Jiri Kosina
+ * Copyright (c) 2007-2008 Oliver Neukum
+ * Copyright (c) 2006-2010 Jiri Kosina
*/
/*
#include <linux/kernel.h>
#include <linux/list.h>
#include <linux/mm.h>
-#include <linux/smp_lock.h>
+#include <linux/mutex.h>
#include <linux/spinlock.h>
#include <asm/unaligned.h>
#include <asm/byteorder.h>
#include <linux/input.h>
#include <linux/wait.h>
+#include <linux/workqueue.h>
#include <linux/usb.h>
* Version Information
*/
-#define DRIVER_VERSION "v2.6"
-#define DRIVER_AUTHOR "Andreas Gal, Vojtech Pavlik, Jiri Kosina"
#define DRIVER_DESC "USB HID core driver"
#define DRIVER_LICENSE "GPL"
-static char *hid_types[] = {"Device", "Pointer", "Mouse", "Device", "Joystick",
- "Gamepad", "Keyboard", "Keypad", "Multi-Axis Controller"};
/*
* Module parameters.
*/
module_param_named(mousepoll, hid_mousepoll_interval, uint, 0644);
MODULE_PARM_DESC(mousepoll, "Polling interval of mice");
+static unsigned int ignoreled;
+module_param_named(ignoreled, ignoreled, uint, 0644);
+MODULE_PARM_DESC(ignoreled, "Autosuspend with active leds");
+
/* Quirks specified at module load time */
static char *quirks_param[MAX_USBHID_BOOT_QUIRKS] = { [ 0 ... (MAX_USBHID_BOOT_QUIRKS - 1) ] = NULL };
module_param_array_named(quirks, quirks_param, charp, NULL, 0444);
" quirks=vendorID:productID:quirks"
" where vendorID, productID, and quirks are all in"
" 0x-prefixed hex");
-static char *rdesc_quirks_param[MAX_USBHID_BOOT_QUIRKS] = { [ 0 ... (MAX_USBHID_BOOT_QUIRKS - 1) ] = NULL };
-module_param_array_named(rdesc_quirks, rdesc_quirks_param, charp, NULL, 0444);
-MODULE_PARM_DESC(rdesc_quirks, "Add/modify report descriptor quirks by specifying "
- " rdesc_quirks=vendorID:productID:rdesc_quirks"
- " where vendorID, productID, and rdesc_quirks are all in"
- " 0x-prefixed hex");
/*
* Input submission and I/O error handler.
*/
+static DEFINE_MUTEX(hid_open_mut);
+static struct workqueue_struct *resumption_waker;
static void hid_io_error(struct hid_device *hid);
+static int hid_submit_out(struct hid_device *hid);
+static int hid_submit_ctrl(struct hid_device *hid);
+static void hid_cancel_delayed_stuff(struct usbhid_device *usbhid);
/* Start up the input URB */
static int hid_start_in(struct hid_device *hid)
int rc = 0;
struct usbhid_device *usbhid = hid->driver_data;
- spin_lock_irqsave(&usbhid->inlock, flags);
- if (hid->open > 0 && !test_bit(HID_SUSPENDED, &usbhid->iofl) &&
+ spin_lock_irqsave(&usbhid->lock, flags);
+ if (hid->open > 0 &&
!test_bit(HID_DISCONNECTED, &usbhid->iofl) &&
+ !test_bit(HID_REPORTED_IDLE, &usbhid->iofl) &&
!test_and_set_bit(HID_IN_RUNNING, &usbhid->iofl)) {
rc = usb_submit_urb(usbhid->urbin, GFP_ATOMIC);
if (rc != 0)
clear_bit(HID_IN_RUNNING, &usbhid->iofl);
}
- spin_unlock_irqrestore(&usbhid->inlock, flags);
+ spin_unlock_irqrestore(&usbhid->lock, flags);
return rc;
}
struct usbhid_device *usbhid =
container_of(work, struct usbhid_device, reset_work);
struct hid_device *hid = usbhid->hid;
- int rc_lock, rc = 0;
+ int rc = 0;
if (test_bit(HID_CLEAR_HALT, &usbhid->iofl)) {
dev_dbg(&usbhid->intf->dev, "clear halt\n");
else if (test_bit(HID_RESET_PENDING, &usbhid->iofl)) {
dev_dbg(&usbhid->intf->dev, "resetting device\n");
- rc = rc_lock = usb_lock_device_for_reset(hid_to_usb_dev(hid), usbhid->intf);
- if (rc_lock >= 0) {
- rc = usb_reset_composite_device(hid_to_usb_dev(hid));
- if (rc_lock)
- usb_unlock_device(hid_to_usb_dev(hid));
+ rc = usb_lock_device_for_reset(hid_to_usb_dev(hid), usbhid->intf);
+ if (rc == 0) {
+ rc = usb_reset_device(hid_to_usb_dev(hid));
+ usb_unlock_device(hid_to_usb_dev(hid));
}
clear_bit(HID_RESET_PENDING, &usbhid->iofl);
}
unsigned long flags;
struct usbhid_device *usbhid = hid->driver_data;
- spin_lock_irqsave(&usbhid->inlock, flags);
+ spin_lock_irqsave(&usbhid->lock, flags);
/* Stop when disconnected */
if (test_bit(HID_DISCONNECTED, &usbhid->iofl))
mod_timer(&usbhid->io_retry,
jiffies + msecs_to_jiffies(usbhid->retry_delay));
done:
- spin_unlock_irqrestore(&usbhid->inlock, flags);
+ spin_unlock_irqrestore(&usbhid->lock, flags);
+}
+
+static void usbhid_mark_busy(struct usbhid_device *usbhid)
+{
+ struct usb_interface *intf = usbhid->intf;
+
+ usb_mark_last_busy(interface_to_usbdev(intf));
+}
+
+static int usbhid_restart_out_queue(struct usbhid_device *usbhid)
+{
+ struct hid_device *hid = usb_get_intfdata(usbhid->intf);
+ int kicked;
+
+ if (!hid)
+ return 0;
+
+ if ((kicked = (usbhid->outhead != usbhid->outtail))) {
+ dbg("Kicking head %d tail %d", usbhid->outhead, usbhid->outtail);
+ if (hid_submit_out(hid)) {
+ clear_bit(HID_OUT_RUNNING, &usbhid->iofl);
+ wake_up(&usbhid->wait);
+ }
+ }
+ return kicked;
+}
+
+static int usbhid_restart_ctrl_queue(struct usbhid_device *usbhid)
+{
+ struct hid_device *hid = usb_get_intfdata(usbhid->intf);
+ int kicked;
+
+ WARN_ON(hid == NULL);
+ if (!hid)
+ return 0;
+
+ if ((kicked = (usbhid->ctrlhead != usbhid->ctrltail))) {
+ dbg("Kicking head %d tail %d", usbhid->ctrlhead, usbhid->ctrltail);
+ if (hid_submit_ctrl(hid)) {
+ clear_bit(HID_CTRL_RUNNING, &usbhid->iofl);
+ wake_up(&usbhid->wait);
+ }
+ }
+ return kicked;
}
/*
int status;
switch (urb->status) {
- case 0: /* success */
- usbhid->retry_delay = 0;
- hid_input_report(urb->context, HID_INPUT_REPORT,
- urb->transfer_buffer,
- urb->actual_length, 1);
- break;
- case -EPIPE: /* stall */
- clear_bit(HID_IN_RUNNING, &usbhid->iofl);
- set_bit(HID_CLEAR_HALT, &usbhid->iofl);
- schedule_work(&usbhid->reset_work);
- return;
- case -ECONNRESET: /* unlink */
- case -ENOENT:
- case -ESHUTDOWN: /* unplug */
- clear_bit(HID_IN_RUNNING, &usbhid->iofl);
- return;
- case -EILSEQ: /* protocol error or unplug */
- case -EPROTO: /* protocol error or unplug */
- case -ETIME: /* protocol error or unplug */
- case -ETIMEDOUT: /* Should never happen, but... */
- clear_bit(HID_IN_RUNNING, &usbhid->iofl);
- hid_io_error(hid);
- return;
- default: /* error */
- warn("input irq status %d received", urb->status);
+ case 0: /* success */
+ usbhid_mark_busy(usbhid);
+ usbhid->retry_delay = 0;
+ hid_input_report(urb->context, HID_INPUT_REPORT,
+ urb->transfer_buffer,
+ urb->actual_length, 1);
+ /*
+ * autosuspend refused while keys are pressed
+ * because most keyboards don't wake up when
+ * a key is released
+ */
+ if (hid_check_keys_pressed(hid))
+ set_bit(HID_KEYS_PRESSED, &usbhid->iofl);
+ else
+ clear_bit(HID_KEYS_PRESSED, &usbhid->iofl);
+ break;
+ case -EPIPE: /* stall */
+ usbhid_mark_busy(usbhid);
+ clear_bit(HID_IN_RUNNING, &usbhid->iofl);
+ set_bit(HID_CLEAR_HALT, &usbhid->iofl);
+ schedule_work(&usbhid->reset_work);
+ return;
+ case -ECONNRESET: /* unlink */
+ case -ENOENT:
+ case -ESHUTDOWN: /* unplug */
+ clear_bit(HID_IN_RUNNING, &usbhid->iofl);
+ return;
+ case -EILSEQ: /* protocol error or unplug */
+ case -EPROTO: /* protocol error or unplug */
+ case -ETIME: /* protocol error or unplug */
+ case -ETIMEDOUT: /* Should never happen, but... */
+ usbhid_mark_busy(usbhid);
+ clear_bit(HID_IN_RUNNING, &usbhid->iofl);
+ hid_io_error(hid);
+ return;
+ default: /* error */
+ dev_warn(&urb->dev->dev, "input irq status %d "
+ "received\n", urb->status);
}
status = usb_submit_urb(urb, GFP_ATOMIC);
static int hid_submit_out(struct hid_device *hid)
{
struct hid_report *report;
+ char *raw_report;
struct usbhid_device *usbhid = hid->driver_data;
- report = usbhid->out[usbhid->outtail];
+ report = usbhid->out[usbhid->outtail].report;
+ raw_report = usbhid->out[usbhid->outtail].raw_report;
- hid_output_report(report, usbhid->outbuf);
- usbhid->urbout->transfer_buffer_length = ((report->size - 1) >> 3) + 1 + (report->id > 0);
- usbhid->urbout->dev = hid_to_usb_dev(hid);
+ if (!test_bit(HID_REPORTED_IDLE, &usbhid->iofl)) {
+ usbhid->urbout->transfer_buffer_length = ((report->size - 1) >> 3) + 1 + (report->id > 0);
+ usbhid->urbout->dev = hid_to_usb_dev(hid);
+ memcpy(usbhid->outbuf, raw_report, usbhid->urbout->transfer_buffer_length);
+ kfree(raw_report);
- dbg_hid("submitting out urb\n");
+ dbg_hid("submitting out urb\n");
- if (usb_submit_urb(usbhid->urbout, GFP_ATOMIC)) {
- err_hid("usb_submit_urb(out) failed");
- return -1;
+ if (usb_submit_urb(usbhid->urbout, GFP_ATOMIC)) {
+ err_hid("usb_submit_urb(out) failed");
+ return -1;
+ }
+ usbhid->last_out = jiffies;
+ } else {
+ /*
+ * queue work to wake up the device.
+ * as the work queue is freezeable, this is safe
+ * with respect to STD and STR
+ */
+ queue_work(resumption_waker, &usbhid->restart_work);
}
return 0;
{
struct hid_report *report;
unsigned char dir;
+ char *raw_report;
int len;
struct usbhid_device *usbhid = hid->driver_data;
report = usbhid->ctrl[usbhid->ctrltail].report;
+ raw_report = usbhid->ctrl[usbhid->ctrltail].raw_report;
dir = usbhid->ctrl[usbhid->ctrltail].dir;
- len = ((report->size - 1) >> 3) + 1 + (report->id > 0);
- if (dir == USB_DIR_OUT) {
- hid_output_report(report, usbhid->ctrlbuf);
- usbhid->urbctrl->pipe = usb_sndctrlpipe(hid_to_usb_dev(hid), 0);
- usbhid->urbctrl->transfer_buffer_length = len;
- } else {
- int maxpacket, padlen;
-
- usbhid->urbctrl->pipe = usb_rcvctrlpipe(hid_to_usb_dev(hid), 0);
- maxpacket = usb_maxpacket(hid_to_usb_dev(hid), usbhid->urbctrl->pipe, 0);
- if (maxpacket > 0) {
- padlen = DIV_ROUND_UP(len, maxpacket);
- padlen *= maxpacket;
- if (padlen > usbhid->bufsize)
- padlen = usbhid->bufsize;
- } else
- padlen = 0;
- usbhid->urbctrl->transfer_buffer_length = padlen;
- }
- usbhid->urbctrl->dev = hid_to_usb_dev(hid);
+ if (!test_bit(HID_REPORTED_IDLE, &usbhid->iofl)) {
+ len = ((report->size - 1) >> 3) + 1 + (report->id > 0);
+ if (dir == USB_DIR_OUT) {
+ usbhid->urbctrl->pipe = usb_sndctrlpipe(hid_to_usb_dev(hid), 0);
+ usbhid->urbctrl->transfer_buffer_length = len;
+ memcpy(usbhid->ctrlbuf, raw_report, len);
+ kfree(raw_report);
+ } else {
+ int maxpacket, padlen;
+
+ usbhid->urbctrl->pipe = usb_rcvctrlpipe(hid_to_usb_dev(hid), 0);
+ maxpacket = usb_maxpacket(hid_to_usb_dev(hid), usbhid->urbctrl->pipe, 0);
+ if (maxpacket > 0) {
+ padlen = DIV_ROUND_UP(len, maxpacket);
+ padlen *= maxpacket;
+ if (padlen > usbhid->bufsize)
+ padlen = usbhid->bufsize;
+ } else
+ padlen = 0;
+ usbhid->urbctrl->transfer_buffer_length = padlen;
+ }
+ usbhid->urbctrl->dev = hid_to_usb_dev(hid);
- usbhid->cr->bRequestType = USB_TYPE_CLASS | USB_RECIP_INTERFACE | dir;
- usbhid->cr->bRequest = (dir == USB_DIR_OUT) ? HID_REQ_SET_REPORT : HID_REQ_GET_REPORT;
- usbhid->cr->wValue = cpu_to_le16(((report->type + 1) << 8) | report->id);
- usbhid->cr->wIndex = cpu_to_le16(usbhid->ifnum);
- usbhid->cr->wLength = cpu_to_le16(len);
+ usbhid->cr->bRequestType = USB_TYPE_CLASS | USB_RECIP_INTERFACE | dir;
+ usbhid->cr->bRequest = (dir == USB_DIR_OUT) ? HID_REQ_SET_REPORT : HID_REQ_GET_REPORT;
+ usbhid->cr->wValue = cpu_to_le16(((report->type + 1) << 8) | report->id);
+ usbhid->cr->wIndex = cpu_to_le16(usbhid->ifnum);
+ usbhid->cr->wLength = cpu_to_le16(len);
- dbg_hid("submitting ctrl urb: %s wValue=0x%04x wIndex=0x%04x wLength=%u\n",
- usbhid->cr->bRequest == HID_REQ_SET_REPORT ? "Set_Report" : "Get_Report",
- usbhid->cr->wValue, usbhid->cr->wIndex, usbhid->cr->wLength);
+ dbg_hid("submitting ctrl urb: %s wValue=0x%04x wIndex=0x%04x wLength=%u\n",
+ usbhid->cr->bRequest == HID_REQ_SET_REPORT ? "Set_Report" : "Get_Report",
+ usbhid->cr->wValue, usbhid->cr->wIndex, usbhid->cr->wLength);
- if (usb_submit_urb(usbhid->urbctrl, GFP_ATOMIC)) {
- err_hid("usb_submit_urb(ctrl) failed");
- return -1;
+ if (usb_submit_urb(usbhid->urbctrl, GFP_ATOMIC)) {
+ err_hid("usb_submit_urb(ctrl) failed");
+ return -1;
+ }
+ usbhid->last_ctrl = jiffies;
+ } else {
+ /*
+ * queue work to wake up the device.
+ * as the work queue is freezeable, this is safe
+ * with respect to STD and STR
+ */
+ queue_work(resumption_waker, &usbhid->restart_work);
}
return 0;
int unplug = 0;
switch (urb->status) {
- case 0: /* success */
- break;
- case -ESHUTDOWN: /* unplug */
- unplug = 1;
- case -EILSEQ: /* protocol error or unplug */
- case -EPROTO: /* protocol error or unplug */
- case -ECONNRESET: /* unlink */
- case -ENOENT:
- break;
- default: /* error */
- warn("output irq status %d received", urb->status);
+ case 0: /* success */
+ break;
+ case -ESHUTDOWN: /* unplug */
+ unplug = 1;
+ case -EILSEQ: /* protocol error or unplug */
+ case -EPROTO: /* protocol error or unplug */
+ case -ECONNRESET: /* unlink */
+ case -ENOENT:
+ break;
+ default: /* error */
+ dev_warn(&urb->dev->dev, "output irq status %d "
+ "received\n", urb->status);
}
- spin_lock_irqsave(&usbhid->outlock, flags);
+ spin_lock_irqsave(&usbhid->lock, flags);
if (unplug)
usbhid->outtail = usbhid->outhead;
clear_bit(HID_OUT_RUNNING, &usbhid->iofl);
wake_up(&usbhid->wait);
}
- spin_unlock_irqrestore(&usbhid->outlock, flags);
+ spin_unlock_irqrestore(&usbhid->lock, flags);
return;
}
clear_bit(HID_OUT_RUNNING, &usbhid->iofl);
- spin_unlock_irqrestore(&usbhid->outlock, flags);
+ spin_unlock_irqrestore(&usbhid->lock, flags);
wake_up(&usbhid->wait);
}
{
struct hid_device *hid = urb->context;
struct usbhid_device *usbhid = hid->driver_data;
- unsigned long flags;
- int unplug = 0;
+ int unplug = 0, status = urb->status;
- spin_lock_irqsave(&usbhid->ctrllock, flags);
+ spin_lock(&usbhid->lock);
- switch (urb->status) {
- case 0: /* success */
- if (usbhid->ctrl[usbhid->ctrltail].dir == USB_DIR_IN)
- hid_input_report(urb->context, usbhid->ctrl[usbhid->ctrltail].report->type,
- urb->transfer_buffer, urb->actual_length, 0);
- break;
- case -ESHUTDOWN: /* unplug */
- unplug = 1;
- case -EILSEQ: /* protocol error or unplug */
- case -EPROTO: /* protocol error or unplug */
- case -ECONNRESET: /* unlink */
- case -ENOENT:
- case -EPIPE: /* report not available */
- break;
- default: /* error */
- warn("ctrl urb status %d received", urb->status);
+ switch (status) {
+ case 0: /* success */
+ if (usbhid->ctrl[usbhid->ctrltail].dir == USB_DIR_IN)
+ hid_input_report(urb->context,
+ usbhid->ctrl[usbhid->ctrltail].report->type,
+ urb->transfer_buffer, urb->actual_length, 0);
+ break;
+ case -ESHUTDOWN: /* unplug */
+ unplug = 1;
+ case -EILSEQ: /* protocol error or unplug */
+ case -EPROTO: /* protocol error or unplug */
+ case -ECONNRESET: /* unlink */
+ case -ENOENT:
+ case -EPIPE: /* report not available */
+ break;
+ default: /* error */
+ dev_warn(&urb->dev->dev, "ctrl urb status %d "
+ "received\n", status);
}
if (unplug)
clear_bit(HID_CTRL_RUNNING, &usbhid->iofl);
wake_up(&usbhid->wait);
}
- spin_unlock_irqrestore(&usbhid->ctrllock, flags);
+ spin_unlock(&usbhid->lock);
return;
}
clear_bit(HID_CTRL_RUNNING, &usbhid->iofl);
- spin_unlock_irqrestore(&usbhid->ctrllock, flags);
+ spin_unlock(&usbhid->lock);
wake_up(&usbhid->wait);
}
-void usbhid_submit_report(struct hid_device *hid, struct hid_report *report, unsigned char dir)
+static void __usbhid_submit_report(struct hid_device *hid, struct hid_report *report,
+ unsigned char dir)
{
int head;
- unsigned long flags;
struct usbhid_device *usbhid = hid->driver_data;
+ int len = ((report->size - 1) >> 3) + 1 + (report->id > 0);
if ((hid->quirks & HID_QUIRK_NOGET) && dir == USB_DIR_IN)
return;
if (usbhid->urbout && dir == USB_DIR_OUT && report->type == HID_OUTPUT_REPORT) {
-
- spin_lock_irqsave(&usbhid->outlock, flags);
-
if ((head = (usbhid->outhead + 1) & (HID_OUTPUT_FIFO_SIZE - 1)) == usbhid->outtail) {
- spin_unlock_irqrestore(&usbhid->outlock, flags);
- warn("output queue full");
+ dev_warn(&hid->dev, "output queue full\n");
return;
}
- usbhid->out[usbhid->outhead] = report;
+ usbhid->out[usbhid->outhead].raw_report = kmalloc(len, GFP_ATOMIC);
+ if (!usbhid->out[usbhid->outhead].raw_report) {
+ dev_warn(&hid->dev, "output queueing failed\n");
+ return;
+ }
+ hid_output_report(report, usbhid->out[usbhid->outhead].raw_report);
+ usbhid->out[usbhid->outhead].report = report;
usbhid->outhead = head;
- if (!test_and_set_bit(HID_OUT_RUNNING, &usbhid->iofl))
+ if (!test_and_set_bit(HID_OUT_RUNNING, &usbhid->iofl)) {
if (hid_submit_out(hid))
clear_bit(HID_OUT_RUNNING, &usbhid->iofl);
-
- spin_unlock_irqrestore(&usbhid->outlock, flags);
+ } else {
+ /*
+ * the queue is known to run
+ * but an earlier request may be stuck
+ * we may need to time out
+ * no race because this is called under
+ * spinlock
+ */
+ if (time_after(jiffies, usbhid->last_out + HZ * 5))
+ usb_unlink_urb(usbhid->urbout);
+ }
return;
}
- spin_lock_irqsave(&usbhid->ctrllock, flags);
-
if ((head = (usbhid->ctrlhead + 1) & (HID_CONTROL_FIFO_SIZE - 1)) == usbhid->ctrltail) {
- spin_unlock_irqrestore(&usbhid->ctrllock, flags);
- warn("control queue full");
+ dev_warn(&hid->dev, "control queue full\n");
return;
}
+ if (dir == USB_DIR_OUT) {
+ usbhid->ctrl[usbhid->ctrlhead].raw_report = kmalloc(len, GFP_ATOMIC);
+ if (!usbhid->ctrl[usbhid->ctrlhead].raw_report) {
+ dev_warn(&hid->dev, "control queueing failed\n");
+ return;
+ }
+ hid_output_report(report, usbhid->ctrl[usbhid->ctrlhead].raw_report);
+ }
usbhid->ctrl[usbhid->ctrlhead].report = report;
usbhid->ctrl[usbhid->ctrlhead].dir = dir;
usbhid->ctrlhead = head;
- if (!test_and_set_bit(HID_CTRL_RUNNING, &usbhid->iofl))
+ if (!test_and_set_bit(HID_CTRL_RUNNING, &usbhid->iofl)) {
if (hid_submit_ctrl(hid))
clear_bit(HID_CTRL_RUNNING, &usbhid->iofl);
+ } else {
+ /*
+ * the queue is known to run
+ * but an earlier request may be stuck
+ * we may need to time out
+ * no race because this is called under
+ * spinlock
+ */
+ if (time_after(jiffies, usbhid->last_ctrl + HZ * 5))
+ usb_unlink_urb(usbhid->urbctrl);
+ }
+}
- spin_unlock_irqrestore(&usbhid->ctrllock, flags);
+void usbhid_submit_report(struct hid_device *hid, struct hid_report *report, unsigned char dir)
+{
+ struct usbhid_device *usbhid = hid->driver_data;
+ unsigned long flags;
+
+ spin_lock_irqsave(&usbhid->lock, flags);
+ __usbhid_submit_report(hid, report, dir);
+ spin_unlock_irqrestore(&usbhid->lock, flags);
}
+EXPORT_SYMBOL_GPL(usbhid_submit_report);
static int usb_hidinput_input_event(struct input_dev *dev, unsigned int type, unsigned int code, int value)
{
struct hid_device *hid = input_get_drvdata(dev);
+ struct usbhid_device *usbhid = hid->driver_data;
struct hid_field *field;
+ unsigned long flags;
int offset;
if (type == EV_FF)
return -1;
if ((offset = hidinput_find_field(hid, type, code, &field)) == -1) {
- warn("event field not found");
+ dev_warn(&dev->dev, "event field not found\n");
return -1;
}
hid_set_field(field, offset, value);
+ if (value) {
+ spin_lock_irqsave(&usbhid->lock, flags);
+ usbhid->ledcount++;
+ spin_unlock_irqrestore(&usbhid->lock, flags);
+ } else {
+ spin_lock_irqsave(&usbhid->lock, flags);
+ usbhid->ledcount--;
+ spin_unlock_irqrestore(&usbhid->lock, flags);
+ }
usbhid_submit_report(hid, field->report, USB_DIR_OUT);
return 0;
struct usbhid_device *usbhid = hid->driver_data;
int res;
+ mutex_lock(&hid_open_mut);
if (!hid->open++) {
res = usb_autopm_get_interface(usbhid->intf);
+ /* the device must be awake to reliable request remote wakeup */
if (res < 0) {
hid->open--;
+ mutex_unlock(&hid_open_mut);
return -EIO;
}
+ usbhid->intf->needs_remote_wakeup = 1;
+ if (hid_start_in(hid))
+ hid_io_error(hid);
+
+ usb_autopm_put_interface(usbhid->intf);
}
- if (hid_start_in(hid))
- hid_io_error(hid);
+ mutex_unlock(&hid_open_mut);
return 0;
}
{
struct usbhid_device *usbhid = hid->driver_data;
+ mutex_lock(&hid_open_mut);
+
+ /* protecting hid->open to make sure we don't restart
+ * data acquistion due to a resumption we no longer
+ * care about
+ */
+ spin_lock_irq(&usbhid->lock);
if (!--hid->open) {
+ spin_unlock_irq(&usbhid->lock);
+ hid_cancel_delayed_stuff(usbhid);
usb_kill_urb(usbhid->urbin);
- usb_autopm_put_interface(usbhid->intf);
+ usbhid->intf->needs_remote_wakeup = 0;
+ } else {
+ spin_unlock_irq(&usbhid->lock);
}
+ mutex_unlock(&hid_open_mut);
}
/*
}
if (err)
- warn("timeout initializing reports");
+ dev_warn(&hid->dev, "timeout initializing reports\n");
}
/*
return -1;
}
-static void usbhid_set_leds(struct hid_device *hid)
+void usbhid_set_leds(struct hid_device *hid)
{
struct hid_field *field;
int offset;
usbhid_submit_report(hid, field->report, USB_DIR_OUT);
}
}
+EXPORT_SYMBOL_GPL(usbhid_set_leds);
/*
* Traverse the supplied list of reports and find the longest
unsigned int size;
list_for_each_entry(report, &hid->report_enum[type].report_list, list) {
- size = ((report->size - 1) >> 3) + 1;
- if (type == HID_INPUT_REPORT && hid->report_enum[type].numbered)
- size++;
+ size = ((report->size - 1) >> 3) + 1 + hid->report_enum[type].numbered;
if (*max < size)
*max = size;
}
{
struct usbhid_device *usbhid = hid->driver_data;
- if (!(usbhid->inbuf = usb_buffer_alloc(dev, usbhid->bufsize, GFP_ATOMIC, &usbhid->inbuf_dma)))
- return -1;
- if (!(usbhid->outbuf = usb_buffer_alloc(dev, usbhid->bufsize, GFP_ATOMIC, &usbhid->outbuf_dma)))
- return -1;
- if (!(usbhid->cr = usb_buffer_alloc(dev, sizeof(*(usbhid->cr)), GFP_ATOMIC, &usbhid->cr_dma)))
- return -1;
- if (!(usbhid->ctrlbuf = usb_buffer_alloc(dev, usbhid->bufsize, GFP_ATOMIC, &usbhid->ctrlbuf_dma)))
+ usbhid->inbuf = usb_buffer_alloc(dev, usbhid->bufsize, GFP_KERNEL,
+ &usbhid->inbuf_dma);
+ usbhid->outbuf = usb_buffer_alloc(dev, usbhid->bufsize, GFP_KERNEL,
+ &usbhid->outbuf_dma);
+ usbhid->cr = usb_buffer_alloc(dev, sizeof(*usbhid->cr), GFP_KERNEL,
+ &usbhid->cr_dma);
+ usbhid->ctrlbuf = usb_buffer_alloc(dev, usbhid->bufsize, GFP_KERNEL,
+ &usbhid->ctrlbuf_dma);
+ if (!usbhid->inbuf || !usbhid->outbuf || !usbhid->cr ||
+ !usbhid->ctrlbuf)
return -1;
return 0;
}
-static int usbhid_output_raw_report(struct hid_device *hid, __u8 *buf, size_t count)
+static int usbhid_output_raw_report(struct hid_device *hid, __u8 *buf, size_t count,
+ unsigned char report_type)
{
struct usbhid_device *usbhid = hid->driver_data;
struct usb_device *dev = hid_to_usb_dev(hid);
ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
HID_REQ_SET_REPORT,
USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE,
- ((HID_OUTPUT_REPORT + 1) << 8) | *buf,
+ ((report_type + 1) << 8) | *buf,
interface->desc.bInterfaceNumber, buf + 1, count - 1,
USB_CTRL_SET_TIMEOUT);
return ret;
}
-static void hid_free_buffers(struct usb_device *dev, struct hid_device *hid)
+static void usbhid_restart_queues(struct usbhid_device *usbhid)
{
- struct usbhid_device *usbhid = hid->driver_data;
-
- usb_buffer_free(dev, usbhid->bufsize, usbhid->inbuf, usbhid->inbuf_dma);
- usb_buffer_free(dev, usbhid->bufsize, usbhid->outbuf, usbhid->outbuf_dma);
- usb_buffer_free(dev, sizeof(*(usbhid->cr)), usbhid->cr, usbhid->cr_dma);
- usb_buffer_free(dev, usbhid->bufsize, usbhid->ctrlbuf, usbhid->ctrlbuf_dma);
+ if (usbhid->urbout)
+ usbhid_restart_out_queue(usbhid);
+ usbhid_restart_ctrl_queue(usbhid);
}
-/*
- * Sending HID_REQ_GET_REPORT changes the operation mode of the ps3 controller
- * to "operational". Without this, the ps3 controller will not report any
- * events.
- */
-static void hid_fixup_sony_ps3_controller(struct usb_device *dev, int ifnum)
+static void __usbhid_restart_queues(struct work_struct *work)
{
- int result;
- char *buf = kmalloc(18, GFP_KERNEL);
+ struct usbhid_device *usbhid =
+ container_of(work, struct usbhid_device, restart_work);
+ int r;
- if (!buf)
+ r = usb_autopm_get_interface(usbhid->intf);
+ if (r < 0)
return;
+ usb_autopm_put_interface(usbhid->intf);
+}
- result = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0),
- HID_REQ_GET_REPORT,
- USB_DIR_IN | USB_TYPE_CLASS |
- USB_RECIP_INTERFACE,
- (3 << 8) | 0xf2, ifnum, buf, 17,
- USB_CTRL_GET_TIMEOUT);
-
- if (result < 0)
- err_hid("%s failed: %d\n", __func__, result);
+static void hid_free_buffers(struct usb_device *dev, struct hid_device *hid)
+{
+ struct usbhid_device *usbhid = hid->driver_data;
- kfree(buf);
+ usb_buffer_free(dev, usbhid->bufsize, usbhid->inbuf, usbhid->inbuf_dma);
+ usb_buffer_free(dev, usbhid->bufsize, usbhid->outbuf, usbhid->outbuf_dma);
+ usb_buffer_free(dev, sizeof(*(usbhid->cr)), usbhid->cr, usbhid->cr_dma);
+ usb_buffer_free(dev, usbhid->bufsize, usbhid->ctrlbuf, usbhid->ctrlbuf_dma);
}
-static struct hid_device *usb_hid_configure(struct usb_interface *intf)
+static int usbhid_parse(struct hid_device *hid)
{
+ struct usb_interface *intf = to_usb_interface(hid->dev.parent);
struct usb_host_interface *interface = intf->cur_altsetting;
struct usb_device *dev = interface_to_usbdev (intf);
struct hid_descriptor *hdesc;
- struct hid_device *hid;
u32 quirks = 0;
- unsigned int insize = 0, rsize = 0;
+ unsigned int rsize = 0;
char *rdesc;
- int n, len;
- struct usbhid_device *usbhid;
+ int ret, n;
quirks = usbhid_lookup_quirk(le16_to_cpu(dev->descriptor.idVendor),
le16_to_cpu(dev->descriptor.idProduct));
+ if (quirks & HID_QUIRK_IGNORE)
+ return -ENODEV;
+
/* Many keyboards and mice don't like to be polled for reports,
* so we will always set the HID_QUIRK_NOGET flag for them. */
if (interface->desc.bInterfaceSubClass == USB_INTERFACE_SUBCLASS_BOOT) {
quirks |= HID_QUIRK_NOGET;
}
- if (quirks & HID_QUIRK_IGNORE)
- return NULL;
-
- if ((quirks & HID_QUIRK_IGNORE_MOUSE) &&
- (interface->desc.bInterfaceProtocol == USB_INTERFACE_PROTOCOL_MOUSE))
- return NULL;
-
-
if (usb_get_extra_descriptor(interface, HID_DT_HID, &hdesc) &&
(!interface->desc.bNumEndpoints ||
usb_get_extra_descriptor(&interface->endpoint[0], HID_DT_HID, &hdesc))) {
dbg_hid("class descriptor not present\n");
- return NULL;
+ return -ENODEV;
}
+ hid->version = le16_to_cpu(hdesc->bcdHID);
+ hid->country = hdesc->bCountryCode;
+
for (n = 0; n < hdesc->bNumDescriptors; n++)
if (hdesc->desc[n].bDescriptorType == HID_DT_REPORT)
rsize = le16_to_cpu(hdesc->desc[n].wDescriptorLength);
if (!rsize || rsize > HID_MAX_DESCRIPTOR_SIZE) {
dbg_hid("weird size of report descriptor (%u)\n", rsize);
- return NULL;
+ return -EINVAL;
}
if (!(rdesc = kmalloc(rsize, GFP_KERNEL))) {
dbg_hid("couldn't allocate rdesc memory\n");
- return NULL;
+ return -ENOMEM;
}
hid_set_idle(dev, interface->desc.bInterfaceNumber, 0, 0);
- if ((n = hid_get_class_descriptor(dev, interface->desc.bInterfaceNumber, HID_DT_REPORT, rdesc, rsize)) < 0) {
+ ret = hid_get_class_descriptor(dev, interface->desc.bInterfaceNumber,
+ HID_DT_REPORT, rdesc, rsize);
+ if (ret < 0) {
dbg_hid("reading report descriptor failed\n");
kfree(rdesc);
- return NULL;
+ goto err;
}
- usbhid_fixup_report_descriptor(le16_to_cpu(dev->descriptor.idVendor),
- le16_to_cpu(dev->descriptor.idProduct), rdesc,
- rsize, rdesc_quirks_param);
-
- dbg_hid("report descriptor (size %u, read %d) = ", rsize, n);
- for (n = 0; n < rsize; n++)
- dbg_hid_line(" %02x", (unsigned char) rdesc[n]);
- dbg_hid_line("\n");
-
- if (!(hid = hid_parse_report(rdesc, n))) {
+ ret = hid_parse_report(hid, rdesc, rsize);
+ kfree(rdesc);
+ if (ret) {
dbg_hid("parsing report descriptor failed\n");
- kfree(rdesc);
- return NULL;
+ goto err;
}
- kfree(rdesc);
- hid->quirks = quirks;
+ hid->quirks |= quirks;
+
+ return 0;
+err:
+ return ret;
+}
- if (!(usbhid = kzalloc(sizeof(struct usbhid_device), GFP_KERNEL)))
- goto fail_no_usbhid;
+static int usbhid_start(struct hid_device *hid)
+{
+ struct usb_interface *intf = to_usb_interface(hid->dev.parent);
+ struct usb_host_interface *interface = intf->cur_altsetting;
+ struct usb_device *dev = interface_to_usbdev(intf);
+ struct usbhid_device *usbhid = hid->driver_data;
+ unsigned int n, insize = 0;
+ int ret;
- hid->driver_data = usbhid;
- usbhid->hid = hid;
+ clear_bit(HID_DISCONNECTED, &usbhid->iofl);
usbhid->bufsize = HID_MIN_BUFFER_SIZE;
hid_find_max_report(hid, HID_INPUT_REPORT, &usbhid->bufsize);
insize = HID_MAX_BUFFER_SIZE;
if (hid_alloc_buffers(dev, hid)) {
- hid_free_buffers(dev, hid);
+ ret = -ENOMEM;
goto fail;
}
- hid->name[0] = 0;
-
- if (dev->manufacturer)
- strlcpy(hid->name, dev->manufacturer, sizeof(hid->name));
-
- if (dev->product) {
- if (dev->manufacturer)
- strlcat(hid->name, " ", sizeof(hid->name));
- strlcat(hid->name, dev->product, sizeof(hid->name));
- }
-
- if (!strlen(hid->name))
- snprintf(hid->name, sizeof(hid->name), "HID %04x:%04x",
- le16_to_cpu(dev->descriptor.idVendor),
- le16_to_cpu(dev->descriptor.idProduct));
-
for (n = 0; n < interface->desc.bNumEndpoints; n++) {
-
struct usb_endpoint_descriptor *endpoint;
int pipe;
int interval;
endpoint = &interface->endpoint[n].desc;
- if ((endpoint->bmAttributes & 3) != 3) /* Not an interrupt endpoint */
+ if (!usb_endpoint_xfer_int(endpoint))
continue;
interval = endpoint->bInterval;
/* Some vendors give fullspeed interval on highspeed devides */
- if (quirks & HID_QUIRK_FULLSPEED_INTERVAL &&
+ if (hid->quirks & HID_QUIRK_FULLSPEED_INTERVAL &&
dev->speed == USB_SPEED_HIGH) {
interval = fls(endpoint->bInterval*8);
printk(KERN_INFO "%s: Fixing fullspeed to highspeed interval: %d -> %d\n",
if (hid->collection->usage == HID_GD_MOUSE && hid_mousepoll_interval > 0)
interval = hid_mousepoll_interval;
+ ret = -ENOMEM;
if (usb_endpoint_dir_in(endpoint)) {
if (usbhid->urbin)
continue;
}
}
- if (!usbhid->urbin) {
- err_hid("couldn't find an input interrupt endpoint");
- goto fail;
- }
-
- init_waitqueue_head(&usbhid->wait);
- INIT_WORK(&usbhid->reset_work, hid_reset);
- setup_timer(&usbhid->io_retry, hid_retry_timeout, (unsigned long) hid);
-
- spin_lock_init(&usbhid->inlock);
- spin_lock_init(&usbhid->outlock);
- spin_lock_init(&usbhid->ctrllock);
-
- hid->version = le16_to_cpu(hdesc->bcdHID);
- hid->country = hdesc->bCountryCode;
- hid->dev = &intf->dev;
- usbhid->intf = intf;
- usbhid->ifnum = interface->desc.bInterfaceNumber;
-
- hid->bus = BUS_USB;
- hid->vendor = le16_to_cpu(dev->descriptor.idVendor);
- hid->product = le16_to_cpu(dev->descriptor.idProduct);
-
- usb_make_path(dev, hid->phys, sizeof(hid->phys));
- strlcat(hid->phys, "/input", sizeof(hid->phys));
- len = strlen(hid->phys);
- if (len < sizeof(hid->phys) - 1)
- snprintf(hid->phys + len, sizeof(hid->phys) - len,
- "%d", intf->altsetting[0].desc.bInterfaceNumber);
-
- if (usb_string(dev, dev->descriptor.iSerialNumber, hid->uniq, 64) <= 0)
- hid->uniq[0] = 0;
-
usbhid->urbctrl = usb_alloc_urb(0, GFP_KERNEL);
- if (!usbhid->urbctrl)
+ if (!usbhid->urbctrl) {
+ ret = -ENOMEM;
goto fail;
+ }
usb_fill_control_urb(usbhid->urbctrl, dev, 0, (void *) usbhid->cr,
usbhid->ctrlbuf, 1, hid_ctrl, hid);
usbhid->urbctrl->setup_dma = usbhid->cr_dma;
usbhid->urbctrl->transfer_dma = usbhid->ctrlbuf_dma;
usbhid->urbctrl->transfer_flags |= (URB_NO_TRANSFER_DMA_MAP | URB_NO_SETUP_DMA_MAP);
- hid->hidinput_input_event = usb_hidinput_input_event;
- hid->hid_open = usbhid_open;
- hid->hid_close = usbhid_close;
-#ifdef CONFIG_USB_HIDDEV
- hid->hiddev_hid_event = hiddev_hid_event;
- hid->hiddev_report_event = hiddev_report_event;
-#endif
- hid->hid_output_raw_report = usbhid_output_raw_report;
- return hid;
+
+ if (!(hid->quirks & HID_QUIRK_NO_INIT_REPORTS))
+ usbhid_init_reports(hid);
+
+ set_bit(HID_STARTED, &usbhid->iofl);
+
+ /* Some keyboards don't work until their LEDs have been set.
+ * Since BIOSes do set the LEDs, it must be safe for any device
+ * that supports the keyboard boot protocol.
+ */
+ if (interface->desc.bInterfaceSubClass == USB_INTERFACE_SUBCLASS_BOOT &&
+ interface->desc.bInterfaceProtocol ==
+ USB_INTERFACE_PROTOCOL_KEYBOARD)
+ usbhid_set_leds(hid);
+
+ return 0;
fail:
usb_free_urb(usbhid->urbin);
usb_free_urb(usbhid->urbout);
usb_free_urb(usbhid->urbctrl);
+ usbhid->urbin = NULL;
+ usbhid->urbout = NULL;
+ usbhid->urbctrl = NULL;
hid_free_buffers(dev, hid);
- kfree(usbhid);
-fail_no_usbhid:
- hid_free_device(hid);
-
- return NULL;
+ return ret;
}
-static void hid_disconnect(struct usb_interface *intf)
+static void usbhid_stop(struct hid_device *hid)
{
- struct hid_device *hid = usb_get_intfdata (intf);
- struct usbhid_device *usbhid;
+ struct usbhid_device *usbhid = hid->driver_data;
- if (!hid)
+ if (WARN_ON(!usbhid))
return;
- usbhid = hid->driver_data;
-
- spin_lock_irq(&usbhid->inlock); /* Sync with error handler */
- usb_set_intfdata(intf, NULL);
+ clear_bit(HID_STARTED, &usbhid->iofl);
+ spin_lock_irq(&usbhid->lock); /* Sync with error handler */
set_bit(HID_DISCONNECTED, &usbhid->iofl);
- spin_unlock_irq(&usbhid->inlock);
+ spin_unlock_irq(&usbhid->lock);
usb_kill_urb(usbhid->urbin);
usb_kill_urb(usbhid->urbout);
usb_kill_urb(usbhid->urbctrl);
- del_timer_sync(&usbhid->io_retry);
- cancel_work_sync(&usbhid->reset_work);
+ hid_cancel_delayed_stuff(usbhid);
- if (hid->claimed & HID_CLAIMED_INPUT)
- hidinput_disconnect(hid);
- if (hid->claimed & HID_CLAIMED_HIDDEV)
- hiddev_disconnect(hid);
- if (hid->claimed & HID_CLAIMED_HIDRAW)
- hidraw_disconnect(hid);
+ hid->claimed = 0;
usb_free_urb(usbhid->urbin);
usb_free_urb(usbhid->urbctrl);
usb_free_urb(usbhid->urbout);
+ usbhid->urbin = NULL; /* don't mess up next start */
+ usbhid->urbctrl = NULL;
+ usbhid->urbout = NULL;
hid_free_buffers(hid_to_usb_dev(hid), hid);
- kfree(usbhid);
- hid_free_device(hid);
}
-static int hid_probe(struct usb_interface *intf, const struct usb_device_id *id)
+static int usbhid_power(struct hid_device *hid, int lvl)
{
+ int r = 0;
+
+ switch (lvl) {
+ case PM_HINT_FULLON:
+ r = usbhid_get_power(hid);
+ break;
+ case PM_HINT_NORMAL:
+ usbhid_put_power(hid);
+ break;
+ }
+ return r;
+}
+
+static struct hid_ll_driver usb_hid_driver = {
+ .parse = usbhid_parse,
+ .start = usbhid_start,
+ .stop = usbhid_stop,
+ .open = usbhid_open,
+ .close = usbhid_close,
+ .power = usbhid_power,
+ .hidinput_input_event = usb_hidinput_input_event,
+};
+
+static int usbhid_probe(struct usb_interface *intf, const struct usb_device_id *id)
+{
+ struct usb_host_interface *interface = intf->cur_altsetting;
+ struct usb_device *dev = interface_to_usbdev(intf);
+ struct usbhid_device *usbhid;
struct hid_device *hid;
- char path[64];
- int i;
- char *c;
+ unsigned int n, has_in = 0;
+ size_t len;
+ int ret;
dbg_hid("HID probe called for ifnum %d\n",
intf->altsetting->desc.bInterfaceNumber);
- if (!(hid = usb_hid_configure(intf)))
+ for (n = 0; n < interface->desc.bNumEndpoints; n++)
+ if (usb_endpoint_is_int_in(&interface->endpoint[n].desc))
+ has_in++;
+ if (!has_in) {
+ dev_err(&intf->dev, "couldn't find an input interrupt "
+ "endpoint\n");
return -ENODEV;
+ }
- usbhid_init_reports(hid);
- hid_dump_device(hid);
- if (hid->quirks & HID_QUIRK_RESET_LEDS)
- usbhid_set_leds(hid);
-
- if (!hidinput_connect(hid))
- hid->claimed |= HID_CLAIMED_INPUT;
- if (!hiddev_connect(hid))
- hid->claimed |= HID_CLAIMED_HIDDEV;
- if (!hidraw_connect(hid))
- hid->claimed |= HID_CLAIMED_HIDRAW;
+ hid = hid_allocate_device();
+ if (IS_ERR(hid))
+ return PTR_ERR(hid);
usb_set_intfdata(intf, hid);
+ hid->ll_driver = &usb_hid_driver;
+ hid->hid_output_raw_report = usbhid_output_raw_report;
+ hid->ff_init = hid_pidff_init;
+#ifdef CONFIG_USB_HIDDEV
+ hid->hiddev_connect = hiddev_connect;
+ hid->hiddev_disconnect = hiddev_disconnect;
+ hid->hiddev_hid_event = hiddev_hid_event;
+ hid->hiddev_report_event = hiddev_report_event;
+#endif
+ hid->dev.parent = &intf->dev;
+ hid->bus = BUS_USB;
+ hid->vendor = le16_to_cpu(dev->descriptor.idVendor);
+ hid->product = le16_to_cpu(dev->descriptor.idProduct);
+ hid->name[0] = 0;
+ if (intf->cur_altsetting->desc.bInterfaceProtocol ==
+ USB_INTERFACE_PROTOCOL_MOUSE)
+ hid->type = HID_TYPE_USBMOUSE;
- if (!hid->claimed) {
- printk ("HID device claimed by neither input, hiddev nor hidraw\n");
- hid_disconnect(intf);
- return -ENODEV;
+ if (dev->manufacturer)
+ strlcpy(hid->name, dev->manufacturer, sizeof(hid->name));
+
+ if (dev->product) {
+ if (dev->manufacturer)
+ strlcat(hid->name, " ", sizeof(hid->name));
+ strlcat(hid->name, dev->product, sizeof(hid->name));
}
- if ((hid->claimed & HID_CLAIMED_INPUT))
- hid_ff_init(hid);
-
- if (hid->quirks & HID_QUIRK_SONY_PS3_CONTROLLER)
- hid_fixup_sony_ps3_controller(interface_to_usbdev(intf),
- intf->cur_altsetting->desc.bInterfaceNumber);
-
- printk(KERN_INFO);
-
- if (hid->claimed & HID_CLAIMED_INPUT)
- printk("input");
- if ((hid->claimed & HID_CLAIMED_INPUT) && ((hid->claimed & HID_CLAIMED_HIDDEV) ||
- hid->claimed & HID_CLAIMED_HIDRAW))
- printk(",");
- if (hid->claimed & HID_CLAIMED_HIDDEV)
- printk("hiddev%d", hid->minor);
- if ((hid->claimed & HID_CLAIMED_INPUT) && (hid->claimed & HID_CLAIMED_HIDDEV) &&
- (hid->claimed & HID_CLAIMED_HIDRAW))
- printk(",");
- if (hid->claimed & HID_CLAIMED_HIDRAW)
- printk("hidraw%d", ((struct hidraw*)hid->hidraw)->minor);
-
- c = "Device";
- for (i = 0; i < hid->maxcollection; i++) {
- if (hid->collection[i].type == HID_COLLECTION_APPLICATION &&
- (hid->collection[i].usage & HID_USAGE_PAGE) == HID_UP_GENDESK &&
- (hid->collection[i].usage & 0xffff) < ARRAY_SIZE(hid_types)) {
- c = hid_types[hid->collection[i].usage & 0xffff];
- break;
- }
+ if (!strlen(hid->name))
+ snprintf(hid->name, sizeof(hid->name), "HID %04x:%04x",
+ le16_to_cpu(dev->descriptor.idVendor),
+ le16_to_cpu(dev->descriptor.idProduct));
+
+ usb_make_path(dev, hid->phys, sizeof(hid->phys));
+ strlcat(hid->phys, "/input", sizeof(hid->phys));
+ len = strlen(hid->phys);
+ if (len < sizeof(hid->phys) - 1)
+ snprintf(hid->phys + len, sizeof(hid->phys) - len,
+ "%d", intf->altsetting[0].desc.bInterfaceNumber);
+
+ if (usb_string(dev, dev->descriptor.iSerialNumber, hid->uniq, 64) <= 0)
+ hid->uniq[0] = 0;
+
+ usbhid = kzalloc(sizeof(*usbhid), GFP_KERNEL);
+ if (usbhid == NULL) {
+ ret = -ENOMEM;
+ goto err;
}
- usb_make_path(interface_to_usbdev(intf), path, 63);
+ hid->driver_data = usbhid;
+ usbhid->hid = hid;
+ usbhid->intf = intf;
+ usbhid->ifnum = interface->desc.bInterfaceNumber;
+
+ init_waitqueue_head(&usbhid->wait);
+ INIT_WORK(&usbhid->reset_work, hid_reset);
+ INIT_WORK(&usbhid->restart_work, __usbhid_restart_queues);
+ setup_timer(&usbhid->io_retry, hid_retry_timeout, (unsigned long) hid);
+ spin_lock_init(&usbhid->lock);
- printk(": USB HID v%x.%02x %s [%s] on %s\n",
- hid->version >> 8, hid->version & 0xff, c, hid->name, path);
+ ret = hid_add_device(hid);
+ if (ret) {
+ if (ret != -ENODEV)
+ dev_err(&intf->dev, "can't add hid device: %d\n", ret);
+ goto err_free;
+ }
return 0;
+err_free:
+ kfree(usbhid);
+err:
+ hid_destroy_device(hid);
+ return ret;
}
-static int hid_suspend(struct usb_interface *intf, pm_message_t message)
+static void usbhid_disconnect(struct usb_interface *intf)
{
- struct hid_device *hid = usb_get_intfdata (intf);
- struct usbhid_device *usbhid = hid->driver_data;
+ struct hid_device *hid = usb_get_intfdata(intf);
+ struct usbhid_device *usbhid;
+
+ if (WARN_ON(!hid))
+ return;
+
+ usbhid = hid->driver_data;
+ hid_destroy_device(hid);
+ kfree(usbhid);
+}
+
+static void hid_cancel_delayed_stuff(struct usbhid_device *usbhid)
+{
+ del_timer_sync(&usbhid->io_retry);
+ cancel_work_sync(&usbhid->restart_work);
+ cancel_work_sync(&usbhid->reset_work);
+}
- spin_lock_irq(&usbhid->inlock); /* Sync with error handler */
- set_bit(HID_SUSPENDED, &usbhid->iofl);
- spin_unlock_irq(&usbhid->inlock);
+static void hid_cease_io(struct usbhid_device *usbhid)
+{
del_timer(&usbhid->io_retry);
usb_kill_urb(usbhid->urbin);
+ usb_kill_urb(usbhid->urbctrl);
+ usb_kill_urb(usbhid->urbout);
+}
+
+/* Treat USB reset pretty much the same as suspend/resume */
+static int hid_pre_reset(struct usb_interface *intf)
+{
+ struct hid_device *hid = usb_get_intfdata(intf);
+ struct usbhid_device *usbhid = hid->driver_data;
+
+ spin_lock_irq(&usbhid->lock);
+ set_bit(HID_RESET_PENDING, &usbhid->iofl);
+ spin_unlock_irq(&usbhid->lock);
+ cancel_work_sync(&usbhid->restart_work);
+ hid_cease_io(usbhid);
+
+ return 0;
+}
+
+/* Same routine used for post_reset and reset_resume */
+static int hid_post_reset(struct usb_interface *intf)
+{
+ struct usb_device *dev = interface_to_usbdev (intf);
+ struct hid_device *hid = usb_get_intfdata(intf);
+ struct usbhid_device *usbhid = hid->driver_data;
+ int status;
+
+ spin_lock_irq(&usbhid->lock);
+ clear_bit(HID_RESET_PENDING, &usbhid->iofl);
+ spin_unlock_irq(&usbhid->lock);
+ hid_set_idle(dev, intf->cur_altsetting->desc.bInterfaceNumber, 0, 0);
+ status = hid_start_in(hid);
+ if (status < 0)
+ hid_io_error(hid);
+ usbhid_restart_queues(usbhid);
+
+ return 0;
+}
+
+int usbhid_get_power(struct hid_device *hid)
+{
+ struct usbhid_device *usbhid = hid->driver_data;
+
+ return usb_autopm_get_interface(usbhid->intf);
+}
+
+void usbhid_put_power(struct hid_device *hid)
+{
+ struct usbhid_device *usbhid = hid->driver_data;
+
+ usb_autopm_put_interface(usbhid->intf);
+}
+
+
+#ifdef CONFIG_PM
+static int hid_suspend(struct usb_interface *intf, pm_message_t message)
+{
+ struct hid_device *hid = usb_get_intfdata(intf);
+ struct usbhid_device *usbhid = hid->driver_data;
+ int status;
+
+ if (message.event & PM_EVENT_AUTO) {
+ spin_lock_irq(&usbhid->lock); /* Sync with error handler */
+ if (!test_bit(HID_RESET_PENDING, &usbhid->iofl)
+ && !test_bit(HID_CLEAR_HALT, &usbhid->iofl)
+ && !test_bit(HID_OUT_RUNNING, &usbhid->iofl)
+ && !test_bit(HID_CTRL_RUNNING, &usbhid->iofl)
+ && !test_bit(HID_KEYS_PRESSED, &usbhid->iofl)
+ && (!usbhid->ledcount || ignoreled))
+ {
+ set_bit(HID_REPORTED_IDLE, &usbhid->iofl);
+ spin_unlock_irq(&usbhid->lock);
+ } else {
+ usbhid_mark_busy(usbhid);
+ spin_unlock_irq(&usbhid->lock);
+ return -EBUSY;
+ }
+
+ } else {
+ spin_lock_irq(&usbhid->lock);
+ set_bit(HID_REPORTED_IDLE, &usbhid->iofl);
+ spin_unlock_irq(&usbhid->lock);
+ if (usbhid_wait_io(hid) < 0)
+ return -EIO;
+ }
+
+ if (!ignoreled && (message.event & PM_EVENT_AUTO)) {
+ spin_lock_irq(&usbhid->lock);
+ if (test_bit(HID_LED_ON, &usbhid->iofl)) {
+ spin_unlock_irq(&usbhid->lock);
+ usbhid_mark_busy(usbhid);
+ return -EBUSY;
+ }
+ spin_unlock_irq(&usbhid->lock);
+ }
+
+ hid_cancel_delayed_stuff(usbhid);
+ hid_cease_io(usbhid);
+
+ if ((message.event & PM_EVENT_AUTO) &&
+ test_bit(HID_KEYS_PRESSED, &usbhid->iofl)) {
+ /* lost race against keypresses */
+ status = hid_start_in(hid);
+ if (status < 0)
+ hid_io_error(hid);
+ usbhid_mark_busy(usbhid);
+ return -EBUSY;
+ }
dev_dbg(&intf->dev, "suspend\n");
return 0;
}
struct usbhid_device *usbhid = hid->driver_data;
int status;
- clear_bit(HID_SUSPENDED, &usbhid->iofl);
+ if (!test_bit(HID_STARTED, &usbhid->iofl))
+ return 0;
+
+ clear_bit(HID_REPORTED_IDLE, &usbhid->iofl);
+ usbhid_mark_busy(usbhid);
+
+ if (test_bit(HID_CLEAR_HALT, &usbhid->iofl) ||
+ test_bit(HID_RESET_PENDING, &usbhid->iofl))
+ schedule_work(&usbhid->reset_work);
usbhid->retry_delay = 0;
status = hid_start_in(hid);
- dev_dbg(&intf->dev, "resume status %d\n", status);
- return status;
-}
+ if (status < 0)
+ hid_io_error(hid);
+ usbhid_restart_queues(usbhid);
-/* Treat USB reset pretty much the same as suspend/resume */
-static int hid_pre_reset(struct usb_interface *intf)
-{
- /* FIXME: What if the interface is already suspended? */
- hid_suspend(intf, PMSG_ON);
+ dev_dbg(&intf->dev, "resume status %d\n", status);
return 0;
}
-/* Same routine used for post_reset and reset_resume */
-static int hid_post_reset(struct usb_interface *intf)
+static int hid_reset_resume(struct usb_interface *intf)
{
- struct usb_device *dev = interface_to_usbdev (intf);
-
- hid_set_idle(dev, intf->cur_altsetting->desc.bInterfaceNumber, 0, 0);
- /* FIXME: Any more reinitialization needed? */
+ struct hid_device *hid = usb_get_intfdata(intf);
+ struct usbhid_device *usbhid = hid->driver_data;
- return hid_resume(intf);
+ clear_bit(HID_REPORTED_IDLE, &usbhid->iofl);
+ return hid_post_reset(intf);
}
-static struct usb_device_id hid_usb_ids [] = {
+#endif /* CONFIG_PM */
+
+static const struct usb_device_id hid_usb_ids[] = {
{ .match_flags = USB_DEVICE_ID_MATCH_INT_CLASS,
.bInterfaceClass = USB_INTERFACE_CLASS_HID },
{ } /* Terminating entry */
static struct usb_driver hid_driver = {
.name = "usbhid",
- .probe = hid_probe,
- .disconnect = hid_disconnect,
+ .probe = usbhid_probe,
+ .disconnect = usbhid_disconnect,
+#ifdef CONFIG_PM
.suspend = hid_suspend,
.resume = hid_resume,
- .reset_resume = hid_post_reset,
+ .reset_resume = hid_reset_resume,
+#endif
.pre_reset = hid_pre_reset,
.post_reset = hid_post_reset,
.id_table = hid_usb_ids,
.supports_autosuspend = 1,
};
+static const struct hid_device_id hid_usb_table[] = {
+ { HID_USB_DEVICE(HID_ANY_ID, HID_ANY_ID) },
+ { }
+};
+
+static struct hid_driver hid_usb_driver = {
+ .name = "generic-usb",
+ .id_table = hid_usb_table,
+};
+
static int __init hid_init(void)
{
- int retval;
+ int retval = -ENOMEM;
+
+ resumption_waker = create_freezeable_workqueue("usbhid_resumer");
+ if (!resumption_waker)
+ goto no_queue;
+ retval = hid_register_driver(&hid_usb_driver);
+ if (retval)
+ goto hid_register_fail;
retval = usbhid_quirks_init(quirks_param);
if (retval)
goto usbhid_quirks_init_fail;
retval = usb_register(&hid_driver);
if (retval)
goto usb_register_fail;
- info(DRIVER_VERSION ":" DRIVER_DESC);
+ printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_DESC "\n");
return 0;
usb_register_fail:
hiddev_init_fail:
usbhid_quirks_exit();
usbhid_quirks_init_fail:
+ hid_unregister_driver(&hid_usb_driver);
+hid_register_fail:
+ destroy_workqueue(resumption_waker);
+no_queue:
return retval;
}
usb_deregister(&hid_driver);
hiddev_exit();
usbhid_quirks_exit();
+ hid_unregister_driver(&hid_usb_driver);
+ destroy_workqueue(resumption_waker);
}
module_init(hid_init);
module_exit(hid_exit);
-MODULE_AUTHOR(DRIVER_AUTHOR);
+MODULE_AUTHOR("Andreas Gal");
+MODULE_AUTHOR("Vojtech Pavlik");
+MODULE_AUTHOR("Jiri Kosina");
MODULE_DESCRIPTION(DRIVER_DESC);
MODULE_LICENSE(DRIVER_LICENSE);
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff