X-Git-Url: http://rtime.felk.cvut.cz/gitweb/lincan.git/blobdiff_plain/3c6d0376edd06bad63e861415974556259f593cd..d70622f27a4e224e2c94bdeef7728232d23fee2b:/lincan/include/usbcan.h

diff --git a/lincan/include/usbcan.h b/lincan/include/usbcan.h
index 0f1e39c..5ddbb12 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
@@ -115,37 +115,48 @@ 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 */
+	volatile 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 */
 	struct usb_interface	*interface;		/* the interface for this device */
-	struct semaphore	limit_sem;		/* limiting the number of writes in progress */
-	struct usb_anchor	submitted;		/* in case we need to retract our submissions */
 	unsigned char           *bulk_in_buffer;	/* the buffer to receive data */
-	unsigned char           *ctl_in_buffer;	/* the buffer to receive data */
 	size_t			bulk_in_size;		/* the size of the receive buffer */
-	size_t			ctl_in_size;		/* the size of the receive buffer */
-	u8			ctl_in_endpointAddr;	/* the address of the bulk in endpoint */
-	u8			ctl_out_endpointAddr;	/* the address of the bulk in endpoint */
 	u8			bulk_in_endpointAddr;	/* the address of the bulk in endpoint */
 	u8			bulk_out_endpointAddr;	/* the address of the bulk out endpoint */
-	int			errors;			/* the last request tanked */
-	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 candevice_t *candev;
-	long flags;
+	struct task_struct *comthread;                      /* usb communication kernel thread  */
+
+	struct canchip_t *chip;
+	volatile long flags;
 };
 
-#define USBCAN_DATA_READ		(1)
-#define USBCAN_TERMINATE		(2)
-#define USBCAN_ERROR				(3)
-#define USBCAN_TX_PENDING		(4)
+#define USBCAN_DATA_READ			(1)
+#define USBCAN_TERMINATE			(2)
+#define USBCAN_ERROR					(3)
+#define USBCAN_TX_PENDING			(4)
+#define USBCAN_THREAD_RUNNING	(5)
 
 #define USBCAN_VENDOR_BAUD_RATE_SET	(1)
 #define USBCAN_VENDOR_BAUD_RATE_STATUS	(2)
@@ -156,5 +167,11 @@ struct usbcan_usb {
 #define USBCAN_VENDOR_EXT_MASK_SET	(7)
 #define USBCAN_VENDOR_EXT_MASK_STATUS	(8)
 
+struct usbcan_devs {
+	struct usbcan_usb **devs;
+	int	count;
+	struct candevice_t *candev;
+};
+
 
 #endif /*USBCAN_H*/