Separated normal read and RTR assisted read transfer.

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

diff --git a/lincan/include/can.h b/lincan/include/can.h
index e31073283e3a5abf4a3f1a4716b4a2c3582e8b10..b3b265ce141c7eb96e47a4e56cafe06c73346ccc 100644 (file)
--- a/lincan/include/can.h
+++ b/lincan/include/can.h
@@ -1,35 +1,34 @@
-#ifndef _CANMSG_T_H
-#define _CANMSG_T_H
+/* can.h
+ * Header file for the Linux CAN-bus driver.
+ * Written by Arnaud Westenberg email:arnaud@wanadoo.nl
+ * Rewritten for new CAN queues by Pavel Pisa - OCERA team member
+ * email:pisa@cmp.felk.cvut.cz
+ * This software is released under the GPL-License.
+ * Version lincan-0.3  17 Jun 2004
+ */
 
+#ifndef _CAN_DRVAPI_T_H
+#define _CAN_DRVAPI_T_H
+
+#ifdef __KERNEL__
+
+#include <linux/time.h>
 #include <linux/types.h>
 #include <linux/ioctl.h>
 
-#ifndef PACKED
-#define PACKED __attribute__((packed))
-#endif
+#else /* __KERNEL__ */
 
-#define CAN_MSG_LENGTH 8
-
-struct canmsg_t {
-       short           flags;
-       int             cob;
-       unsigned long   id;
-       unsigned long   timestamp;
-       unsigned int    length;
-       unsigned char   data[CAN_MSG_LENGTH];
-} PACKED;
-
-struct canfilt_t {
-       int             flags;
-       int             cob;
-       unsigned long   id;
-       unsigned long   mask;
-};
+#include <sys/time.h>
+#include <sys/types.h>
+#include <sys/ioctl.h>
+
+#endif /* __KERNEL__ */
+
+#include "./canmsg.h"
 
-/* Definitions to use for canmsg_t flags */
-#define MSG_RTR (1<<0)
-#define MSG_OVR (1<<1)
-#define MSG_EXT (1<<2)
+#ifdef __cplusplus
+extern "C" {
+#endif
 
 /* CAN ioctl magic number */
 #define CAN_IOC_MAGIC 'd'
@@ -37,7 +36,29 @@ struct canfilt_t {
 typedef unsigned long bittiming_t;
 typedef unsigned short channel_t;
 
+/**
+ * struct can_baudparams_t - datatype for calling CONF_BAUDPARAMS IOCTL 
+ * @flags: reserved for additional flags for chip configuration, should be written -1 or 0
+ * @baudrate: baud rate in Hz
+ * @sjw: synchronization jump width (0-3) prescaled clock cycles
+ * @sampl_pt: sample point in % (0-100) sets (TSEG1+1)/(TSEG1+TSEG2+2) ratio
+ * 
+ * The structure is used to configure new set of parameters into CAN controller chip.
+ * If default value of some field should be preserved, fill field by value -1.
+ */
+struct can_baudparams_t {
+       long flags;
+       long baudrate;
+       long sjw;
+       long sample_pt;
+};
+
 /* CAN ioctl functions */
+#define CAN_DRV_QUERY _IO(CAN_IOC_MAGIC, 0)
+#define CAN_DRV_QRY_BRANCH    0        /* returns driver branch value - "LINC" for LinCAN driver */
+#define CAN_DRV_QRY_VERSION   1        /* returns driver version as (major<<16) | (minor<<8) | patch */
+#define CAN_DRV_QRY_MSGFORMAT 2        /* format of canmsg_t structure */
+
 #define CMD_START _IOW(CAN_IOC_MAGIC, 1, channel_t)
 #define CMD_STOP _IOW(CAN_IOC_MAGIC, 2, channel_t)
 //#define CMD_RESET 3
@@ -53,6 +74,13 @@ typedef unsigned short channel_t;
 //#define CONF_FDISABLE
 
 #define STAT _IO(CAN_IOC_MAGIC, 9)
-#define CONF_FILTER_QUE0 _IOW(CAN_IOC_MAGIC, 10, struct canfilt_t)
+#define CANQUE_FILTER _IOW(CAN_IOC_MAGIC, 10, struct canfilt_t)
+#define CANQUE_FLUSH  _IO(CAN_IOC_MAGIC, 11)
+#define CONF_BAUDPARAMS  _IOW(CAN_IOC_MAGIC, 11, struct can_baudparams_t)
+#define CANRTR_READ  _IOWR(CAN_IOC_MAGIC, 12, struct canmsg_t)
+
+#ifdef __cplusplus
+} /* extern "C"*/
+#endif
 
-#endif /*_CANMSG_T_H*/
+#endif /*_CAN_DRVAPI_T_H*/