linconf: Modular architecture.

[linux-lin.git] / lin_config / src / pcl_config.h

diff --git a/lin_config/src/pcl_config.h b/lin_config/src/pcl_config.h
new file mode 100644 (file)
index 0000000..0b8deee
--- /dev/null
+++ b/lin_config/src/pcl_config.h
@@ -0,0 +1,42 @@
+#ifndef _PCL_CONFIG_H_
+#define _PCL_CONFIG_H_
+
+#include <inttypes.h>
+#include "lin_config.h"
+
+#define PCL_ACTIVE                             1
+#define PCL_UNACTIVE                           0
+
+#define PCL_PKT_MAX_SIZE                       16
+#define PCL_HEADERS_SIZE                       2 /* There are 2 bytes of headers */
+#define PCL_CHECKSUM_SIZE                      1
+#define PCL_STX_SIZE                           1
+#define PCL_PACKET_OVERHEAD                    (PCL_HEADERS_SIZE + PCL_CHECKSUM_SIZE)
+
+#define PCL_STX                                        0x2
+
+#define PCL_SEQ_NO_ofs                         4
+#define PCL_SEQ_FRLEN_ofs                      0
+#define PCL_CTRL_TIFACE_ofs                    6
+#define PCL_CTRL_COMC_ofs                      0
+
+#define PCL_SEQ_FRLEN_msk                      0xF
+
+#define PCL_PACKET_LIN_IFACE                   0x2
+#define PCL_PACKET_MODULE_IFACE                        0x3
+
+/* Logical representation of a packet sent to PCAN-LIN converter via RS232 */
+typedef struct {
+       uint8_t stx;        /* Start transmission; Always set to 0x2 */
+       uint8_t seq_no;     /* Sequence number */
+       uint8_t seq_frlen;  /* Frame length */
+       uint8_t ctrl_tiface;/* Target interface */
+       uint8_t ctrl_comc;  /* Command code */
+       uint8_t parms[8];   /* Parameters; Number of parameters depends
+                               on the frame length */
+       uint8_t chks;       /* Checksum; Bitwise XOR of all bytes except STX */
+} pcl_packet_t;
+
+int pcl_config(struct linc_lin_state *linc_lin_state, unsigned int flags);
+
+#endif /* _PCL_CONFIG_H_ */