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-rw-r--r--arch/mips/baget/print.c118
1 files changed, 118 insertions, 0 deletions
diff --git a/arch/mips/baget/print.c b/arch/mips/baget/print.c
new file mode 100644
index 000000000..68511c20e
--- /dev/null
+++ b/arch/mips/baget/print.c
@@ -0,0 +1,118 @@
+/* $Id$
+ *
+ * print.c: Simple print fascility
+ *
+ * Copyright (C) 1998 Gleb Raiko & Vladimir Roganov
+ *
+ */
+#include <stdarg.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+
+#include <asm/baget/baget.h>
+
+/*
+ * Define this to see 'baget_printk' (debug) messages
+ */
+// #define BAGET_PRINTK
+
+/*
+ * This function is same for BALO and Linux baget_printk,
+ * and normally prints characted to second (UART A) console.
+ */
+
+static void delay(void) {}
+
+static void outc_low(char c)
+{
+ int i;
+ vac_outb(c, VAC_UART_B_TX);
+ for (i=0; i<10000; i++)
+ delay();
+}
+
+void outc(char c)
+{
+ if (c == '\n')
+ outc_low('\r');
+ outc_low(c);
+}
+
+void outs(char *s)
+{
+ while(*s) outc(*s++);
+}
+
+void baget_write(char *s, int l)
+{
+ while(l--)
+ outc(*s++);
+}
+
+int baget_printk(const char *fmt, ...)
+{
+#ifdef BAGET_PRINTK
+ va_list args;
+ int i;
+ static char buf[1024];
+
+ va_start(args, fmt);
+ i = vsprintf(buf, fmt, args); /* hopefully i < sizeof(buf)-4 */
+ va_end(args);
+ baget_write(buf, i);
+ return i;
+#else
+ return 0;
+#endif
+}
+
+static __inline__ void puthex( int a )
+{
+ static char s[9];
+ static char e[] = "0123456789ABCDEF";
+ int i;
+ for( i = 7; i >= 0; i--, a >>= 4 ) s[i] = e[a & 0x0F];
+ s[8] = '\0';
+ outs( s );
+}
+
+__initfunc(void balo_printf( char *f, ... ))
+{
+ int *arg = (int*)&f + 1;
+ char c;
+ int format = 0;
+
+ while((c = *f++) != 0) {
+ switch(c) {
+ default:
+ if(format) {
+ outc('%');
+ format = 0;
+ }
+ outc( c );
+ break;
+ case '%':
+ if( format ){
+ format = 0;
+ outc(c);
+ } else format = 1;
+ break;
+ case 'x':
+ if(format) puthex( *arg++ );
+ else outc(c);
+ format = 0;
+ break;
+ case 's':
+ if( format ) outs((char *)*arg++);
+ else outc(c);
+ format = 0;
+ break;
+ }
+ }
+}
+
+__initfunc(void balo_hungup(void))
+{
+ outs("Hunging up.\n");
+ while(1);
+}