X-Git-Url: http://rtime.felk.cvut.cz/gitweb/lincan.git/blobdiff_plain/1fd6ebf194739bee96aa5696cdd24622ef658130..92b76dca553a98a228f368f8ff6eedc25e33b870:/lincan/include/can.h

diff --git a/lincan/include/can.h b/lincan/include/can.h
index 0473dcc..2521291 100644
--- a/lincan/include/can.h
+++ b/lincan/include/can.h
@@ -27,6 +27,23 @@ 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 */
@@ -50,6 +67,7 @@ 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)
 
 #ifdef __cplusplus
 } /* extern "C"*/