X-Git-Url: http://rtime.felk.cvut.cz/gitweb/lincan.git/blobdiff_plain/c316aed80a2047f337dc0cff35e2458c4cb13eca..a682f9de48bcce43fba6141fbdb4d451914e0bb4:/lincan/include/can.h

diff --git a/lincan/include/can.h b/lincan/include/can.h
index 3cf633b..b3b265c 100644
--- a/lincan/include/can.h
+++ b/lincan/include/can.h
@@ -1,3 +1,12 @@
+/* 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
 
@@ -27,7 +36,29 @@ extern "C" {
 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
@@ -45,6 +76,8 @@ typedef unsigned short channel_t;
 #define STAT _IO(CAN_IOC_MAGIC, 9)
 #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"*/