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Add some definitions for battery backed clock register 5, 

and fix one spelling nit.

Mostly from port-hp300/8824, which had already pointed out
y2k (and y2k+1) bugs before 2000, but they were not fixed
till the last month. (I noticed this PR today. Oops)
This commit is contained in:
tsutsui 2001-11-10 19:43:48 +00:00
parent 88de3daceb
commit 3f6a86f512
1 changed files with 8 additions and 6 deletions
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14
sys/arch/hp300/hp300/clock.c
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@ -1,4 +1,4 @@
/* $NetBSD: clock.c,v 1.22 2001/10/11 15:02:07 tsutsui Exp $ */
/* $NetBSD: clock.c,v 1.23 2001/11/10 19:43:48 tsutsui Exp $ */
/*
* Copyright (c) 1988 University of Utah.
@ -426,6 +426,10 @@ resettodr()
#define NUM_BBC_REGS 13
#define BBC_BASE_YEAR 1900
#define BBC_REG5_HOUR 0x3
#define BBC_REG5_PM 0x4
#define BBC_REG5_24HR 0x8
void
bbc_init(void)
{
@ -472,8 +476,7 @@ bbc_gettime(handle, tv)
dt.dt_sec = bbc_to_decimal(1, 0);
dt.dt_min = bbc_to_decimal(3, 2);
/* Hours are different for some reason. Makes no sense really. */
dt.dt_hour = ((bbc_registers[5] & 0x03) * 10) + bbc_registers[4];
dt.dt_hour = (bbc_registers[5] & BBC_REG5_HOUR) * 10 + bbc_registers[4];
dt.dt_day = bbc_to_decimal(8, 7);
dt.dt_mon = bbc_to_decimal(10, 9);
@ -521,16 +524,15 @@ bbc_settime(handle, tv)
decimal_to_bbc(9, 10, dt.dt_mon);
decimal_to_bbc(11, 12, year);
/* Some bogusness to deal with seemingly broken hardware. Nonsense */
bbc_registers[4] = dt.dt_hour % 10;
bbc_registers[5] = ((dt.dt_hour / 10) & 0x03) | 0x08;
bbc_registers[5] = ((dt.dt_hour / 10) & BBC_REG5_HOUR) | BBC_REG5_24HR;
bbc_registers[6] = 0;
#undef decimal_to_bbc
/* write bbc registers */
write_bbc_reg(bbcaddr, 15, 13); /* reset prescalar */
write_bbc_reg(bbcaddr, 15, 13); /* reset prescaler */
for (i = 0; i < NUM_BBC_REGS; i++)
if (bbc_registers[i] !=
write_bbc_reg(bbcaddr, i, bbc_registers[i]))