1 files changed, 138 insertions, 0 deletions
diff --git a/include/libchip/ns16550_p.h b/include/libchip/ns16550_p.h
new file mode 100644
index 0000000000..0fe817ad6b
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+++ b/include/libchip/ns16550_p.h
@@ -0,0 +1,138 @@
+/**
+ *  @file
+ *  
+ */
+
+/*
+ *  COPYRIGHT (c) 1998 by Radstone Technology
+ *
+ *
+ *  THIS FILE IS PROVIDED TO YOU, THE USER, "AS IS", WITHOUT WARRANTY OF ANY
+ *  KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE
+ *  IMPLIED WARRANTY OF FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK
+ *  AS TO THE QUALITY AND PERFORMANCE OF ALL CODE IN THIS FILE IS WITH YOU.
+ *
+ *  You are hereby granted permission to use, copy, modify, and distribute
+ *  this file, provided that this notice, plus the above copyright notice
+ *  and disclaimer, appears in all copies. Radstone Technology will provide
+ *  no support for this code.
+ *
+ *  COPYRIGHT (c) 1989-2012.
+ *  On-Line Applications Research Corporation (OAR).
+ *
+ *  The license and distribution terms for this file may be
+ *  found in the file LICENSE in this distribution or at
+ *  http://www.rtems.org/license/LICENSE.
+ */
+
+#ifndef _NS16550_P_H_
+#define _NS16550_P_H_
+
+#include <libchip/serial.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*
+ *  Define NS16550_STATIC to nothing while debugging so the entry points
+ *  will show up in the symbol table.
+ */
+
+#define NS16550_STATIC static
+
+#define NS16550_RECEIVE_BUFFER   0
+#define NS16550_TRANSMIT_BUFFER  0
+#define NS16550_INTERRUPT_ENABLE 1
+#define NS16550_INTERRUPT_ID     2
+#define NS16550_FIFO_CONTROL     2
+#define NS16550_LINE_CONTROL     3
+#define NS16550_MODEM_CONTROL    4
+#define NS16550_LINE_STATUS      5
+#define NS16550_MODEM_STATUS     6
+#define NS16550_SCRATCH_PAD      7
+#define NS16550_FRACTIONAL_DIVIDER 10
+
+/*
+ * Define serial port interrupt enable register structure.
+ */
+
+#define SP_INT_RX_ENABLE  0x01
+#define SP_INT_TX_ENABLE  0x02
+#define SP_INT_LS_ENABLE  0x04
+#define SP_INT_MS_ENABLE  0x08
+
+#define NS16550_ENABLE_ALL_INTR           (SP_INT_RX_ENABLE | SP_INT_TX_ENABLE)
+#define NS16550_DISABLE_ALL_INTR          0x00
+#define NS16550_ENABLE_ALL_INTR_EXCEPT_TX (SP_INT_RX_ENABLE)
+
+/*
+ * Define serial port interrupt ID register structure.
+ */
+
+#define SP_IID_0 0x01
+#define SP_IID_1 0x02
+#define SP_IID_2 0x04
+#define SP_IID_3 0x08
+
+/*
+ * Define serial port fifo control register structure.
+ */
+
+#define SP_FIFO_ENABLE  0x01
+#define SP_FIFO_RXRST 0x02
+#define SP_FIFO_TXRST 0x04
+#define SP_FIFO_DMA   0x08
+#define SP_FIFO_RXLEVEL 0xc0
+
+#define SP_FIFO_SIZE 16
+
+/*
+ * Define serial port line control register structure.
+ */
+
+#define SP_LINE_SIZE  0x03
+#define SP_LINE_STOP  0x04
+#define SP_LINE_PAR   0x08
+#define SP_LINE_ODD   0x10
+#define SP_LINE_STICK 0x20
+#define SP_LINE_BREAK 0x40
+#define SP_LINE_DLAB  0x80
+
+/*
+ * Line status register character size definitions.
+ */
+
+#define FIVE_BITS 0x0                   /* five bits per character */
+#define SIX_BITS 0x1                    /* six bits per character */
+#define SEVEN_BITS 0x2                  /* seven bits per character */
+#define EIGHT_BITS 0x3                  /* eight bits per character */
+
+/*
+ * Define serial port modem control register structure.
+ */
+
+#define SP_MODEM_DTR  0x01
+#define SP_MODEM_RTS  0x02
+#define SP_MODEM_IRQ  0x08
+#define SP_MODEM_LOOP 0x10
+#define SP_MODEM_DIV4 0x80
+
+/*
+ * Define serial port line status register structure.
+ */
+
+#define SP_LSR_RDY    0x01
+#define SP_LSR_EOVRUN 0x02
+#define SP_LSR_EPAR   0x04
+#define SP_LSR_EFRAME 0x08
+#define SP_LSR_BREAK  0x10
+#define SP_LSR_THOLD  0x20
+#define SP_LSR_TX   0x40
+#define SP_LSR_EFIFO  0x80
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _NS16550_P_H_ */