patch-2.4.5 linux/arch/ppc/boot/ns16550.c

• Lines: 57
• Date: Wed Dec 31 16:00:00 1969
• Orig file: v2.4.4/linux/arch/ppc/boot/ns16550.c
• Orig date: Thu Jan 7 12:06:57 1999

diff -u --recursive --new-file v2.4.4/linux/arch/ppc/boot/ns16550.c linux/arch/ppc/boot/ns16550.c
@@ -1,56 +0,0 @@
-/*
- * COM1 NS16550 support
- */
-
-#include "ns16550.h"
-typedef struct NS16550 *NS16550_t;
-
-const NS16550_t COM_PORTS[] = { (NS16550_t) COM1,
-    (NS16550_t) COM2,
-    (NS16550_t) COM3,
-    (NS16550_t) COM4 };
-
-volatile struct NS16550 *
-NS16550_init(int chan)
-{
- volatile struct NS16550 *com_port;
- volatile unsigned char xx;
- com_port = (struct NS16550 *) COM_PORTS[chan];
- /* See if port is present */
- com_port->lcr = 0x00;
- com_port->ier = 0xFF;
-#if 0
- if (com_port->ier != 0x0F) return ((struct NS16550 *)0);
-#endif
- com_port->ier = 0x00;
- com_port->lcr = 0x80;  /* Access baud rate */
- com_port->dll = 0xc;  /* 9600 baud */
- com_port->dlm = 0xc >> 8;
- com_port->lcr = 0x03;  /* 8 data, 1 stop, no parity */
- com_port->mcr = 0x03;  /* RTS/DTR */
- com_port->fcr = 0x07;  /* Clear & enable FIFOs */
- return (com_port);
-}
-
-
-NS16550_putc(volatile struct NS16550 *com_port, unsigned char c)
-{
- volatile int i;
- while ((com_port->lsr & LSR_THRE) == 0) ;
- com_port->thr = c;
-}
-
-unsigned char
-NS16550_getc(volatile struct NS16550 *com_port)
-{
- while ((com_port->lsr & LSR_DR) == 0) ;
- return (com_port->rbr);
-}
-
-NS16550_tstc(volatile struct NS16550 *com_port)
-{
- return ((com_port->lsr & LSR_DR) != 0);
-}
-
-
-