#include <linux/kref.h>
#include <asm/uaccess.h>
#include <linux/usb.h>
+#include <linux/mutex.h>
+#include <linux/wait.h>
+
+#include "../include/kthread.h"
+
+/* our private defines. if this grows any larger, use your own .h file */
+#define MAX_TRANSFER (PAGE_SIZE - 512)
+/* MAX_TRANSFER is chosen so that the VM is not stressed by
+ allocations > PAGE_SIZE and the number of packets in a page
+ is an integer 512 is the largest possible packet on EHCI */
+#define WRITES_IN_FLIGHT 8
+/* arbitrarily chosen */
+
+/* Define these values to match your devices */
+#define USBCAN_VENDOR_ID 0x1669
+#define USBCAN_PRODUCT_ID 0x1011
+
+#define RESET_ADDR 0x0
+
+/*
+ * IO_RANGE is the io-memory range that gets reserved, please adjust according
+ * your hardware. Example: #define IO_RANGE 0x100 for i82527 chips or
+ * #define IO_RANGE 0x20 for sja1000 chips in basic CAN mode.
+ */
+#define IO_RANGE 0x100
+
int usbcan_request_io(struct candevice_t *candev);
int usbcan_release_io(struct candevice_t *candev);
void usbcan_write_register(unsigned data, unsigned long address);
unsigned usbcan_read_register(unsigned long address);
int usbcan_program_irq(struct candevice_t *candev);
+int usbcan_register(struct hwspecops_t *hwspecops);
int usbcan_chip_config(struct canchip_t *chip);
int usbcan_extended_mask(struct canchip_t *chip, unsigned long code, unsigned long mask);
int usbcan_init(void);
void usbcan_exit(void);
-#endif /*USBCAN_H*/
\ No newline at end of file
+int usbcan_kthread(void *data);
+int usbcan_chip_queue_status(struct canchip_t *chip);
+
+#ifdef CONFIG_OC_LINCAN_DETAILED_ERRORS
+
+// static const char *sja1000_ecc_errc_str[]={
+// "bit error",
+// "form error",
+// "stuff error",
+// "other type of error"
+// };
+//
+// static const char *sja1000_ecc_seg_str[]={
+// "?0?",
+// "?1?",
+// "ID.28 to ID.21",
+// "start of frame",
+// "bit SRTR",
+// "bit IDE",
+// "ID.20 to ID.18",
+// "ID.17 to ID.13",
+// "CRC sequence",
+// "reserved bit 0",
+// "data field",
+// "data length code",
+// "bit RTR",
+// "reserved bit 1",
+// "ID.4 to ID.0",
+// "ID.12 to ID.5",
+// "?16?"
+// "active error flag",
+// "intermission",
+// "tolerate dominant bits",
+// "?20?",
+// "?21?",
+// "passive error flag",
+// "error delimiter",
+// "CRC delimiter",
+// "acknowledge slot",
+// "end of frame",
+// "acknowledge delimiter",
+// "overload flag",
+// "?29?",
+// "?30?",
+// "?31?"
+// };
+
+#endif /*CONFIG_OC_LINCAN_DETAILED_ERRORS*/
+
+struct usbcan_usb;
+
+#define USBCAN_TOT_RX_URBS 8
+#define USBCAN_TOT_TX_URBS 8
+
+#define USBCAN_TRANSFER_SIZE 16
+
+struct usbcan_message {
+ struct urb *u;
+ struct usbcan_usb *dev;
+ u8 msg[USBCAN_TRANSFER_SIZE];
+ spinlock_t acc; /* access lock */
+ struct canque_edge_t *qedge;
+ struct canque_slot_t *slot;
+ volatile long flags;
+};
+
+#define USBCAN_MESSAGE_FREE (1)
+#define USBCAN_MESSAGE_URB_PENDING (2)
+#define USBCAN_MESSAGE_TERMINATE (3)
+#define USBCAN_MESSAGE_ERROR (4)
+#define USBCAN_MESSAGE_DATA_OK (5)
+#define USBCAN_MESSAGE_TYPE_RX (6)
+#define USBCAN_MESSAGE_TYPE_TX (7)
+
+/* 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 */
+ unsigned char *bulk_in_buffer; /* the buffer to receive data */
+ size_t bulk_in_size; /* the size of the receive buffer */
+ u8 bulk_in_endpointAddr; /* the address of the bulk in endpoint */
+ u8 bulk_out_endpointAddr; /* the address of the bulk out endpoint */
+ struct mutex io_mutex; /* synchronize I/O with disconnect */
+ struct usbcan_message rx[USBCAN_TOT_RX_URBS];
+ struct usbcan_message tx[USBCAN_TOT_TX_URBS];
+
+ struct task_struct *comthread; /* usb communication kernel thread */
+ wait_queue_head_t queue;
+
+ struct canchip_t *chip;
+ volatile long flags;
+};
+
+#define USBCAN_DATA_OK (1)
+#define USBCAN_DATA_RX (2)
+#define USBCAN_DATA_TX (3)
+#define USBCAN_TERMINATE (4)
+#define USBCAN_ERROR (5)
+#define USBCAN_TX_PENDING (6)
+#define USBCAN_THREAD_RUNNING (7)
+#define USBCAN_FREE_TX_URB (8)
+
+#define USBCAN_VENDOR_BAUD_RATE_SET (1)
+#define USBCAN_VENDOR_BAUD_RATE_STATUS (2)
+#define USBCAN_VENDOR_SET_BTREGS (3)
+#define USBCAN_VENDOR_CHECK_TX_STAT (4)
+#define USBCAN_VENDOR_START_CHIP (5)
+#define USBCAN_VENDOR_STOP_CHIP (6)
+#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*/
projects / lincan.git / blobdiff