Imported from /home/lorry/working-area/delta_ntp/ntp-dev-4.2.7p482.tar.gz.ntp-dev-4.2.7p482

1 files changed, 95 insertions, 0 deletions

diff --git a/kernel/sys/pcl720.h b/kernel/sys/pcl720.h
new file mode 100644
index 0000000..cf4eccd
--- /dev/null
+++ b/kernel/sys/pcl720.h
@@ -0,0 +1,95 @@
+/* Copyright (c) 1995 Vixie Enterprises
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies, and that
+ * the name of Vixie Enterprises not be used in advertising or publicity
+ * pertaining to distribution of the document or software without specific,
+ * written prior permission.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS" AND VIXIE ENTERPRISES DISCLAIMS ALL
+ * WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS.   IN NO EVENT SHALL VIXIE ENTERPRISES
+ * BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES
+ * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
+ * WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
+ * ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
+ * SOFTWARE.
+ */
+
+#ifndef _PCL720_DEFINED
+#define _PCL720_DEFINED
+
+#define	pcl720_data(base,bit)	(base+(bit>>3))
+#define pcl720_data_0_7(base)	(base+0)
+#define pcl720_data_8_15(base)	(base+1)
+#define pcl720_data_16_23(base)	(base+2)
+#define pcl720_data_24_31(base)	(base+3)
+#define pcl720_cntr(base,cntr)	(base+4+cntr)	/* cntr: 0..2 */
+#define pcl720_cntr_0(base)	(base+4)
+#define pcl720_cntr_1(base)	(base+5)
+#define pcl720_cntr_2(base)	(base+6)
+#define pcl720_ctrl(base)	(base+7)
+
+#ifndef DEBUG_PCL720
+#define	pcl720_inb(x)		inb(x)
+#define	pcl720_outb(x,y)	outb(x,y)
+#else
+static unsigned char pcl720_inb(int addr) {
+	unsigned char x = inb(addr);
+	fprintf(DEBUG_PCL720, "inb(0x%x) -> 0x%x\n", addr, x);
+	return (x);
+}
+static void pcl720_outb(int addr, unsigned char x) {
+	outb(addr, x);
+	fprintf(DEBUG_PCL720, "outb(0x%x, 0x%x)\n", addr, x);
+}
+#endif
+
+#define	pcl720_load(Base,Cntr,Mode,Val) \
+	({	register unsigned int	b = Base, c = Cntr, v = Val; \
+		i8253_ctrl ctrl; \
+		\
+		ctrl.s.bcd = i8253_binary; \
+		ctrl.s.mode = Mode; \
+		ctrl.s.rl = i8253_lmb; \
+		ctrl.s.cntr = c; \
+		pcl720_outb(pcl720_ctrl(b), ctrl.i); \
+		pcl720_outb(pcl720_cntr(b,c), v); \
+		pcl720_outb(pcl720_cntr(b,c), v >> 8); \
+		v; \
+	})
+
+#define	pcl720_read(Base,Cntr) \
+	({	register unsigned int	b = Base, v; \
+		i8253_ctrl ctrl; \
+		\
+		ctrl.s.rl = i8253_latch; \
+		ctrl.s.cntr = i8253_cntr_0; \
+		pcl720_outb(pcl720_ctrl(b), ctrl.i); \
+		v = pcl720_inb(pcl720_cntr_0(b)); \
+		v |= (pcl720_inb(pcl720_cntr_0(b)) << 8); \
+		v; \
+	})
+
+#define	pcl720_input(Base) \
+	({	register unsigned int	b = Base, v; \
+		\
+		v = pcl720_inb(pcl720_data_0_7(b)); \
+		v |= (pcl720_inb(pcl720_data_8_15(b)) << 8); \
+		v |= (pcl720_inb(pcl720_data_16_23(b)) << 16); \
+		v |= (pcl720_inb(pcl720_data_24_31(b)) << 24); \
+		v; \
+	})
+
+#define	pcl720_output(Base,Value) \
+	({	register unsigned int	b = Base, v = Value; \
+		\
+		pcl720_outb(pcl720_data_0_7(b), v); \
+		pcl720_outb(pcl720_data_8_15(b), v << 8); \
+		pcl720_outb(pcl720_data_16_23(b), v << 16); \
+		pcl720_outb(pcl720_data_24_31(b), v << 24); \
+		v; \
+	})
+
+#endif /*_PCL720_DEFINED*/