X-Git-Url: http://rtime.felk.cvut.cz/gitweb/lincan.git/blobdiff_plain/3c6d0376edd06bad63e861415974556259f593cd..f6c113a5fb217e7495b93053cf29fa6966923445:/lincan/include/usbcan.h

diff --git a/lincan/include/usbcan.h b/lincan/include/usbcan.h
index 0f1e39c..b01a627 100644
--- a/lincan/include/usbcan.h
+++ b/lincan/include/usbcan.h
@@ -66,7 +66,7 @@ int usbcan_irq_handler(int irq, struct canchip_t *chip);
 int usbcan_init(void);
 void usbcan_exit(void);
 
-void usbcan_read_kthread(kthread_t *kthread);
+int usbcan_read_kthread(void *data);
 int usbcan_chip_queue_status(struct canchip_t *chip);
 
 #ifdef CONFIG_OC_LINCAN_DETAILED_ERRORS
@@ -115,6 +115,23 @@ int usbcan_chip_queue_status(struct canchip_t *chip);
 
 #endif /*CONFIG_OC_LINCAN_DETAILED_ERRORS*/
 
+struct usbcan_message {
+	struct urb	*u;
+	u8	msg[16];
+	spinlock_t		acc;		/* access lock */
+	long	flags;
+};
+
+#define USBCAN_MESSAGE_FREE (1)
+#define USBCAN_MESSAGE_READY_TO_SEND (2)
+#define USBCAN_MESSAGE_SENDING			(3)
+#define USBCAN_MESSAGE_TERMINATE		(4)
+#define USBCAN_MESSAGE_ERROR				(5)
+#define USBCAN_MESSAGE_DATA_READ		(6)
+
+#define USBCAN_TOT_RX_URBS 8
+#define USBCAN_TOT_TX_URBS 8
+
 /* Structure to hold all of our device specific stuff */
 struct usbcan_usb {
 	struct usb_device	*udev;			/* the usb device for this device */
@@ -133,10 +150,13 @@ struct usbcan_usb {
 	int			open_count;		/* count the number of openers */
 	spinlock_t		err_lock;		/* lock for errors */
 	struct mutex		io_mutex;		/* synchronize I/O with disconnect */
-	struct urb		*rcv;
-	u8	rcv_msg[16];
+	struct urb		*rx;
+	struct urb		*tx;
+	u8	rx_msg[16];
 	u8	tx_msg[16];
-	kthread_t  rcvthread;                      /* usb receive kernel thread  */
+
+	struct task_struct *comthread;                      /* usb communication kernel thread  */
+
 
 	struct candevice_t *candev;
 	long flags;