From e6eb3f50227612725a61bc8ad832e5a66cc25814 Mon Sep 17 00:00:00 2001
From: Kevin O'Connor <kevin@koconnor.net>
Date: Sun, 13 Apr 2008 17:37:41 -0400
Subject: [PATCH] Move timer setup from post.c to clock.c.

---
 Makefile    |  4 ++--
 src/clock.c | 31 +++++++++++++++++++++++++++++++
 src/post.c  | 32 +-------------------------------
 src/util.h  |  1 +
 4 files changed, 35 insertions(+), 33 deletions(-)

diff --git a/Makefile b/Makefile
index 5684af7..3d7c3e2 100644
--- a/Makefile
+++ b/Makefile
@@ -8,8 +8,8 @@
 OUT=out/
 
 # Source files
-SRCBOTH=output.c util.c floppy.c ata.c kbd.c pci.c boot.c serial.c
-SRC16=$(SRCBOTH) disk.c system.c clock.c mouse.c cdrom.c apm.c pcibios.c
+SRCBOTH=output.c util.c floppy.c ata.c kbd.c pci.c boot.c serial.c clock.c
+SRC16=$(SRCBOTH) disk.c system.c mouse.c cdrom.c apm.c pcibios.c
 SRC32=$(SRCBOTH) post.c rombios32.c post_menu.c
 TABLESRC=font.c cbt.c floppy_dbt.c
 
diff --git a/src/clock.c b/src/clock.c
index 4d8643f..ad8347c 100644
--- a/src/clock.c
+++ b/src/clock.c
@@ -13,6 +13,37 @@
 #define DEBUGF1(fmt, args...) bprintf(0, fmt , ##args)
 #define DEBUGF(fmt, args...)
 
+static void
+pit_setup()
+{
+    // timer0: binary count, 16bit count, mode 2
+    outb(0x34, PORT_PIT_MODE);
+    // maximum count of 0000H = 18.2Hz
+    outb(0x0, PORT_PIT_COUNTER0);
+    outb(0x0, PORT_PIT_COUNTER0);
+}
+
+static u32
+bcd2bin(u8 val)
+{
+    return (val & 0xf) + ((val >> 4) * 10);
+}
+
+void
+timer_setup()
+{
+    pit_setup();
+
+    u32 seconds = bcd2bin(inb_cmos(CMOS_RTC_SECONDS));
+    u32 ticks = (seconds * 18206507) / 1000000;
+    u32 minutes = bcd2bin(inb_cmos(CMOS_RTC_MINUTES));
+    ticks += (minutes * 10923904) / 10000;
+    u32 hours = bcd2bin(inb_cmos(CMOS_RTC_HOURS));
+    ticks += (hours * 65543427) / 1000;
+    SET_BDA(timer_counter, ticks);
+    SET_BDA(timer_rollover, 0);
+}
+
 static void
 init_rtc()
 {
diff --git a/src/post.c b/src/post.c
index ad60f99..1b9fc5b 100644
--- a/src/post.c
+++ b/src/post.c
@@ -81,35 +81,6 @@ init_ebda()
             , offsetof(struct extended_bios_data_area_s, fdpt[1]));
 }
 
-static void
-pit_setup()
-{
-    // timer0: binary count, 16bit count, mode 2
-    outb(0x34, PORT_PIT_MODE);
-    // maximum count of 0000H = 18.2Hz
-    outb(0x0, PORT_PIT_COUNTER0);
-    outb(0x0, PORT_PIT_COUNTER0);
-}
-
-static u32
-bcd2bin(u8 val)
-{
-    return (val & 0xf) + ((val >> 4) * 10);
-}
-
-static void
-timer_setup()
-{
-    u32 seconds = bcd2bin(inb_cmos(CMOS_RTC_SECONDS));
-    u32 ticks = (seconds * 18206507) / 1000000;
-    u32 minutes = bcd2bin(inb_cmos(CMOS_RTC_MINUTES));
-    ticks += (minutes * 10923904) / 10000;
-    u32 hours = bcd2bin(inb_cmos(CMOS_RTC_HOURS));
-    ticks += (hours * 65543427) / 1000;
-    SET_BDA(timer_counter, ticks);
-    SET_BDA(timer_rollover, 0);
-}
-
 static void
 pic_setup()
 {
@@ -215,11 +186,10 @@ post()
     init_handlers();
     init_ebda();
 
-    pit_setup();
+    timer_setup();
     kbd_setup();
     lpt_setup();
     serial_setup();
-    timer_setup();
     pic_setup();
 
     rom_scan(0xc0000, 0xc7800);
diff --git a/src/util.h b/src/util.h
index ec52eac..e304a0b 100644
--- a/src/util.h
+++ b/src/util.h
@@ -148,6 +148,7 @@ void serial_setup();
 void lpt_setup();
 
 // clock.c
+void timer_setup();
 void handle_1583(struct bregs *regs);
 
 // apm.c
-- 
2.25.1