C++ (Cpp) iforce_usb_xmit Examples

Example #1

File: iforce-usb.c Project: maliyu/SOM2416

static void iforce_usb_out(struct urb *urb)
{
	struct iforce *iforce = urb->context;

	if (urb->status) {
		printk(KERN_DEBUG "iforce_usb_out: urb->status %d, exiting", urb->status);
		return;
	}

	iforce_usb_xmit(iforce);

	wake_up(&iforce->wait);
}

Example #2

File: iforce-usb.c Project: DirtyDroidX/android_kernel_htc_m8ul

static void iforce_usb_out(struct urb *urb)
{
	struct iforce *iforce = urb->context;

	if (urb->status) {
		clear_bit(IFORCE_XMIT_RUNNING, iforce->xmit_flags);
		dbg("urb->status %d, exiting", urb->status);
		return;
	}

	iforce_usb_xmit(iforce);

	wake_up(&iforce->wait);
}

Example #3

File: iforce-packets.c Project: 3sOx/asuswrt-merlin

/*
 * Send a packet of bytes to the device
 */
int iforce_send_packet(struct iforce *iforce, u16 cmd, unsigned char* data)
{
	/* Copy data to buffer */
	int n = LO(cmd);
	int c;
	int empty;
	int head, tail;
	unsigned long flags;

/*
 * Update head and tail of xmit buffer
 */
	spin_lock_irqsave(&iforce->xmit_lock, flags);

	head = iforce->xmit.head;
	tail = iforce->xmit.tail;


	if (CIRC_SPACE(head, tail, XMIT_SIZE) < n+2) {
		warn("not enough space in xmit buffer to send new packet");
		spin_unlock_irqrestore(&iforce->xmit_lock, flags);
		return -1;
	}

	empty = head == tail;
	XMIT_INC(iforce->xmit.head, n+2);

/*
 * Store packet in xmit buffer
 */
	iforce->xmit.buf[head] = HI(cmd);
	XMIT_INC(head, 1);
	iforce->xmit.buf[head] = LO(cmd);
	XMIT_INC(head, 1);

	c = CIRC_SPACE_TO_END(head, tail, XMIT_SIZE);
	if (n < c) c=n;

	memcpy(&iforce->xmit.buf[head],
	       data,
	       c);
	if (n != c) {
		memcpy(&iforce->xmit.buf[0],
		       data + c,
		       n - c);
	}
	XMIT_INC(head, n);

	spin_unlock_irqrestore(&iforce->xmit_lock, flags);
/*
 * If necessary, start the transmission
 */
	switch (iforce->bus) {

#ifdef CONFIG_JOYSTICK_IFORCE_232
		case IFORCE_232:
		if (empty)
			iforce_serial_xmit(iforce);
		break;
#endif
#ifdef CONFIG_JOYSTICK_IFORCE_USB
		case IFORCE_USB:

		if (iforce->usbdev && empty &&
			!test_and_set_bit(IFORCE_XMIT_RUNNING, iforce->xmit_flags)) {

			iforce_usb_xmit(iforce);
		}
		break;
#endif
	}
	return 0;
}