lib: UART control protocol, initial commit

0d6df9e0 · Tomasz Wlostowski · 1e05cb70 · 0d6df9e0 · 0d6df9e0
Commit 0d6df9e0 authored Nov 18, 2020 by Tomasz Wlostowski
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ertm14-uart-link.c lib/ertm14-uart-link.c +489 -0

ertm14-uart-link.h lib/ertm14-uart-link.h +49 -0

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--- a/lib/ertm14-uart-link.c
+++ b/lib/ertm14-uart-link.c
--- a/lib/ertm14-uart-link.h
+++ b/lib/ertm14-uart-link.h
+#ifndef __ERTM14_UART_LINK_H
+#define __ERTM14_UART_LINK_H
+
+#include <stdint.h>
+
+#define ERTM14_MAX_UART_LINK_PAYLOAD 512
+
+struct simple_uart_device;
+
+struct uart_packet
+{
+    uint8_t ptype;
+    uint16_t length;
+    uint8_t payload[ ERTM14_MAX_UART_LINK_PAYLOAD ];
+};
+
+struct uart_link
+{
+    int (*send_byte)(struct uart_link *link, uint8_t byte );
+    int (*recv_byte)(struct uart_link *link );
+    uint32_t (*get_ms_tics)( struct uart_link *link );
+    void *priv;
+    int state;
+    int rx_count;
+    uint16_t rx_crc, check_crc;
+    uint32_t rx_last_tics;
+    struct uart_packet rx_packet;
+};
+
+
+#ifdef __linux__
+int uart_link_create_linux( struct uart_link *link, const char* dev_name, int speed );
+int uart_link_close_linux( struct uart_link *link );
+#endif
+
+#ifdef CONFIG_TARGET_ERTM14
+int uart_link_create_wrpc_console( struct uart_link *link );
+int uart_link_create_wrpc_suart( struct uart_link *link, struct simple_uart_device *uart_dev );
+#endif
+
+#ifdef MODULE_ERTM14_FPGA_UART // openMMC
+
+#endif
+
+int uart_link_reset( struct uart_link *link );
+int uart_link_send( struct uart_link* link, struct uart_packet* pkt );
+int uart_link_recv( struct uart_link* link, struct uart_packet **pkt, int timeout_ms );
+
+#endif