Merge with git://ulan.git.sourceforge.net/gitroot/ulan/sysless

[sysless.git] / board / arm / ul_usb1 / libs / bspbase / uart.h

diff --git a/board/arm/ul_usb1/libs/bspbase/uart.h b/board/arm/ul_usb1/libs/bspbase/uart.h
new file mode 100644 (file)
index 0000000..f13906c
--- /dev/null
+++ b/board/arm/ul_usb1/libs/bspbase/uart.h
@@ -0,0 +1,65 @@
+/******************************************************************************
+ * based on software from:
+ * Copyright 2004, R O SoftWare
+ * No guarantees, warrantees, or promises, implied or otherwise.
+ * May be used for hobby or commercial purposes provided copyright
+ * notice remains intact.
+ * 
+ * reduced to learn what has to be done to enable and use UART0
+ *****************************************************************************/
+#ifndef INC_UART_H
+#define INC_UART_H
+
+#include <system_def.h>
+
+///////////////////////////////////////////////////////////////////////////////
+// use the following macros to determine the 'baud' parameter values
+// for uart0Init() and uart1Init()
+// CAUTION - 'baud' SHOULD ALWAYS BE A CONSTANT or
+// a lot of code will be generated.
+// Baud-Rate is calculated based on pclk (VPB-clock)
+// the devisor must be 16 times the desired baudrate
+#define UART_BAUD(baud) (uint16_t)((PCLK / ((baud) * 16.0)) + 0.5)
+
+///////////////////////////////////////////////////////////////////////////////
+// Definitions for typical UART 'baud' settings
+#define B1200         UART_BAUD(1200)
+#define B9600         UART_BAUD(9600)
+#define B19200        UART_BAUD(19200)
+#define B38400        UART_BAUD(38400)
+#define B57600        UART_BAUD(57600)
+#define B115200       UART_BAUD(115200)
+
+///////////////////////////////////////////////////////////////////////////////
+// Definitions for typical UART 'mode' settings
+#define UART_8N1      (uint8_t)(ULCR_CHAR_8 + ULCR_PAR_NO   + ULCR_STOP_1)
+#define UART_7N1      (uint8_t)(ULCR_CHAR_7 + ULCR_PAR_NO   + ULCR_STOP_1)
+#define UART_8N2      (uint8_t)(ULCR_CHAR_8 + ULCR_PAR_NO   + ULCR_STOP_2)
+#define UART_7N2      (uint8_t)(ULCR_CHAR_7 + ULCR_PAR_NO   + ULCR_STOP_2)
+#define UART_8E1      (uint8_t)(ULCR_CHAR_8 + ULCR_PAR_EVEN + ULCR_STOP_1)
+#define UART_7E1      (uint8_t)(ULCR_CHAR_7 + ULCR_PAR_EVEN + ULCR_STOP_1)
+#define UART_8E2      (uint8_t)(ULCR_CHAR_8 + ULCR_PAR_EVEN + ULCR_STOP_2)
+#define UART_7E2      (uint8_t)(ULCR_CHAR_7 + ULCR_PAR_EVEN + ULCR_STOP_2)
+#define UART_8O1      (uint8_t)(ULCR_CHAR_8 + ULCR_PAR_ODD  + ULCR_STOP_1)
+#define UART_7O1      (uint8_t)(ULCR_CHAR_7 + ULCR_PAR_ODD  + ULCR_STOP_1)
+#define UART_8O2      (uint8_t)(ULCR_CHAR_8 + ULCR_PAR_ODD  + ULCR_STOP_2)
+#define UART_7O2      (uint8_t)(ULCR_CHAR_7 + ULCR_PAR_ODD  + ULCR_STOP_2)
+
+///////////////////////////////////////////////////////////////////////////////
+// Definitions for typical UART 'fmode' settings
+#define UART_FIFO_OFF (0x00)
+#define UART_FIFO_1   (uint8_t)(UFCR_FIFO_ENABLE + UFCR_FIFO_TRIG1)
+#define UART_FIFO_4   (uint8_t)(UFCR_FIFO_ENABLE + UFCR_FIFO_TRIG4)
+#define UART_FIFO_8   (uint8_t)(UFCR_FIFO_ENABLE + UFCR_FIFO_TRIG8)
+#define UART_FIFO_14  (uint8_t)(UFCR_FIFO_ENABLE + UFCR_FIFO_TRIG14)
+
+void uart0Init(uint16_t baud, uint8_t mode, uint8_t fmode);
+int uart0Putch(int ch);
+uint16_t uart0Space(void);
+const char *uart0Puts(const char *string);
+int uart0TxEmpty(void);
+void uart0TxFlush(void);
+int uart0Getch(void);
+int uart0GetchW(void);
+
+#endif