Embedded code and LinCAN driver now working

[lincan.git] / lincan / include / usbcan.h

diff --git a/lincan/include/usbcan.h b/lincan/include/usbcan.h
index 0f1e39cd078517110e8174c0be49e3b941ac7a54..b01a6275d0d6a953a9b3f7049462f55efa4d135b 100644 (file)
--- 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;