patch-2.4.19 linux-2.4.19/arch/mips/jmr3927/common/puts.c

• Lines: 169
• Date: Fri Aug 2 17:39:43 2002
• Orig file: linux-2.4.18/arch/mips/jmr3927/common/puts.c
• Orig date: Wed Dec 31 16:00:00 1969

diff -urN linux-2.4.18/arch/mips/jmr3927/common/puts.c linux-2.4.19/arch/mips/jmr3927/common/puts.c
@@ -0,0 +1,168 @@
+/*
+ *
+ * BRIEF MODULE DESCRIPTION
+ *	Low level uart routines to directly access a TX[34]927 SIO.
+ *
+ * Copyright 2001 MontaVista Software Inc.
+ * Author: MontaVista Software, Inc.
+ *         	ahennessy@mvista.com or source@mvista.com
+ *
+ * Copyright (C) 2000-2001 Toshiba Corporation 
+ *
+ * Based on arch/mips/au1000/common/puts.c
+ *
+ *  This program is free software; you can redistribute  it and/or modify it
+ *  under  the terms of  the GNU General  Public License as published by the
+ *  Free Software Foundation;  either version 2 of the  License, or (at your
+ *  option) any later version.
+ *
+ *  THIS  SOFTWARE  IS PROVIDED   ``AS  IS'' AND   ANY  EXPRESS OR IMPLIED
+ *  WARRANTIES,   INCLUDING, BUT NOT  LIMITED  TO, THE IMPLIED WARRANTIES OF
+ *  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN
+ *  NO  EVENT  SHALL   THE AUTHOR  BE    LIABLE FOR ANY   DIRECT, INDIRECT,
+ *  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ *  NOT LIMITED   TO, PROCUREMENT OF  SUBSTITUTE GOODS  OR SERVICES; LOSS OF
+ *  USE, DATA,  OR PROFITS; OR  BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ *  ANY THEORY OF LIABILITY, WHETHER IN  CONTRACT, STRICT LIABILITY, OR TORT
+ *  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ *  THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ *  You should have received a copy of the  GNU General Public License along
+ *  with this program; if not, write  to the Free Software Foundation, Inc.,
+ *  675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/types.h>
+#include <asm/jmr3927/txx927.h>
+#include <asm/jmr3927/tx3927.h>
+#include <asm/jmr3927/jmr3927.h>
+
+#define TIMEOUT       0xffffff
+#define SLOW_DOWN
+
+static const char digits[16] = "0123456789abcdef";
+
+#ifdef SLOW_DOWN
+#define slow_down() { int k; for (k=0; k<10000; k++); }
+#else
+#define slow_down()
+#endif
+
+void
+putch(const unsigned char c)
+{
+        int i = 0;
+	
+        do {
+            slow_down();
+            i++;
+            if (i>TIMEOUT) {
+                break;
+            }
+        } while (!(tx3927_sioptr(1)->cisr & TXx927_SICISR_TXALS));
+	tx3927_sioptr(1)->tfifo = c;
+	return;
+}
+
+unsigned char getch(void)
+{
+        int i = 0;
+	int dicr;
+	char c;
+	
+	/* diable RX int. */
+	dicr = tx3927_sioptr(1)->dicr;
+	tx3927_sioptr(1)->dicr = 0;
+
+        do {
+            slow_down();
+            i++;
+            if (i>TIMEOUT) {
+                break;
+            }
+        } while (tx3927_sioptr(1)->disr & TXx927_SIDISR_UVALID)
+		;
+	c = tx3927_sioptr(1)->rfifo;
+
+	/* clear RX int. status */
+	tx3927_sioptr(1)->disr &= ~TXx927_SIDISR_RDIS;
+	/* enable RX int. */
+	tx3927_sioptr(1)->dicr = dicr;
+
+	return c;
+}
+void
+do_jmr3927_led_set(char n)
+{
+    /* and with current leds */
+    jmr3927_led_and_set(n);
+}
+
+void
+puts(unsigned char *cp)
+{
+    int i = 0;
+
+    while (*cp) {
+        do {
+            slow_down();
+            i++;
+            if (i>TIMEOUT) {
+                break;
+            }
+        } while (!(tx3927_sioptr(1)->cisr & TXx927_SICISR_TXALS));
+	tx3927_sioptr(1)->tfifo = *cp++;
+    }
+    putch('\r');
+    putch('\n');
+}
+
+void
+fputs(unsigned char *cp)
+{
+    int i = 0;
+
+    while (*cp) {
+        do {
+             slow_down();
+            i++;
+            if (i>TIMEOUT) {
+                break;
+            }
+        } while (!(tx3927_sioptr(1)->cisr & TXx927_SICISR_TXALS));
+	tx3927_sioptr(1)->tfifo = *cp++;
+    }
+}
+
+
+void
+put64(uint64_t ul)
+{
+    int cnt;
+    unsigned ch;
+
+    cnt = 16;            /* 16 nibbles in a 64 bit long */
+    putch('0');
+    putch('x');
+    do {
+        cnt--;
+        ch = (unsigned char)(ul >> cnt * 4) & 0x0F;
+                putch(digits[ch]);
+    } while (cnt > 0);
+}
+
+void
+put32(unsigned u)
+{
+    int cnt;
+    unsigned ch;
+
+    cnt = 8;            /* 8 nibbles in a 32 bit long */
+    putch('0');
+    putch('x');
+    do {
+        cnt--;
+        ch = (unsigned char)(u >> cnt * 4) & 0x0F;
+                putch(digits[ch]);
+    } while (cnt > 0);
+}