2006-02-20 Thomas Schwinge <tschwinge@gnu.org>

Remove unused and unsupported code.  Consult the file
	`DEVELOPMENT' for details.  Partly based on suggestions by
	Gianluca Guida <glguida@gmail.com>.

	* chips/atm.c: Remove file.
	* chips/atmreg.h: Likewise.
	* chips/audio.c: Likewise.
	* chips/audio_config.h: Likewise.
	* chips/audio_defs.h: Likewise.
	* chips/bt431.c: Likewise.
	* chips/bt431.h: Likewise.
	* chips/bt455.c: Likewise.
	* chips/bt455.h: Likewise.
	* chips/bt459.c: Likewise.
	* chips/bt459.h: Likewise.
	* chips/bt478.c: Likewise.
	* chips/bt478.h: Likewise.
	* chips/build_font.c: Likewise.
	* chips/cfb_hdw.c: Likewise.
	* chips/cfb_misc.c: Likewise.
	* chips/dc503.c: Likewise.
	* chips/dc503.h: Likewise.
	* chips/dtop.h: Likewise.
	* chips/dtop_handlers.c: Likewise.
	* chips/dtop_hdw.c: Likewise.
	* chips/dz_7085.h: Likewise.
	* chips/dz_defs.h: Likewise.
	* chips/dz_hdw.c: Likewise.
	* chips/eccreg.h: Likewise.
	* chips/fb_hdw.c: Likewise.
	* chips/fb_misc.c: Likewise.
	* chips/fdc_82077.h: Likewise.
	* chips/fdc_82077_hdw.c: Likewise.
	* chips/frc.c: Likewise.
	* chips/ims332.c: Likewise.
	* chips/ims332.h: Likewise.
	* chips/isdn_79c30.h: Likewise.
	* chips/isdn_79c30_hdw.c: Likewise.
	* chips/kernel_font.c: Likewise.
	* chips/kernel_font.data: Likewise.
	* chips/lance.c: Likewise.
	* chips/lance.h: Likewise.
	* chips/lance_mapped.c: Likewise.
	* chips/lk201.c: Likewise.
	* chips/lk201.h: Likewise.
	* chips/mc_clock.c: Likewise.
	* chips/mc_clock.h: Likewise.
	* chips/mouse.c: Likewise.
	* chips/nc.c: Likewise.
	* chips/nc.h: Likewise.
	* chips/nw.h: Likewise.
	* chips/nw_mk.c: Likewise.
	* chips/nw_mk.h: Likewise.
	* chips/pm_defs.h: Likewise.
	* chips/pm_hdw.c: Likewise.
	* chips/pm_misc.c: Likewise.
	* chips/scc_8530.h: Likewise.
	* chips/scc_8530_hdw.c: Likewise.
	* chips/screen.c: Likewise.
	* chips/screen.h: Likewise.
	* chips/screen_defs.h: Likewise.
	* chips/screen_switch.c: Likewise.
	* chips/screen_switch.h: Likewise.
	* chips/serial_console.c: Likewise.
	* chips/serial_defs.h: Likewise.
	* chips/sfb_hdw.c: Likewise.
	* chips/sfb_misc.c: Likewise.
	* chips/spans.c: Likewise.
	* chips/spans.h: Likewise.
	* chips/tca100.c: Likewise.
	* chips/tca100.h: Likewise.
	* chips/tca100_if.c: Likewise.
	* chips/tca100_if.h: Likewise.
	* chips/vs42x_rb.h: Likewise.
	* chips/xcfb_hdw.c: Likewise.
	* chips/xcfb_misc.c: Likewise.
	* chips/xcfb_monitor.h: Likewise.
	* Makefile.in (chips-files): Only contain `busses.c' and `busses.h'.
	* kern/syscall_sw.c: Don't include <chips/nw_mk.h> anymore.

1 files changed, 0 insertions, 516 deletions

diff --git a/chips/mc_clock.c b/chips/mc_clock.c
deleted file mode 100644
index 15fa049..0000000
--- a/chips/mc_clock.c
+++ /dev/null
@@ -1,516 +0,0 @@
-/* 
- * Mach Operating System
- * Copyright (c) 1991,1990 Carnegie Mellon University
- * All Rights Reserved.
- * 
- * Permission to use, copy, modify and distribute this software and its
- * documentation is hereby granted, provided that both the copyright
- * notice and this permission notice appear in all copies of the
- * software, derivative works or modified versions, and any portions
- * thereof, and that both notices appear in supporting documentation.
- * 
- * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
- * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
- * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
- * 
- * Carnegie Mellon requests users of this software to return to
- * 
- *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
- *  School of Computer Science
- *  Carnegie Mellon University
- *  Pittsburgh PA 15213-3890
- * 
- * any improvements or extensions that they make and grant Carnegie Mellon
- * the rights to redistribute these changes.
- */
-/*
- *	File:	mc_clock.c
- *	Author: Alessandro Forin
- *	Date:	8/90
- *
- *	Driver for the MC146818 Clock
- */
-
-#include <mc.h>
-#if	NMC > 0
-#include <platforms.h>
-
-#include <mach/std_types.h>
-#include <machine/machspl.h>		/* spl definitions */
-#include <chips/busses.h>
-
-#include <sys/time.h>
-#include <kern/time_out.h>
-#include <chips/mc_clock.h>
-
-#ifdef	DECSTATION
-#include <mips/mips_cpu.h>
-#include <mips/clock.h>
-#endif	/*DECSTATION*/
-
-#ifdef	FLAMINGO
-#include <alpha/clock.h>
-#endif	/*FLAMINGO*/
-
-#define private static
-#define public
-
-
-/* Architecture-specific defines */
-
-#ifdef	DECSTATION
-
-#define	MC_DEFAULT_ADDRESS	(mc_clock_ram_t *)PHYS_TO_K1SEG(0x1d000000)
-#define	MC_DOES_DELAYS		1
-
-/*
- * Both the Pmax and the 3max implementations of the chip map
- * bytes of the chip's RAM to 32 bit words (low byte).
- * For convenience, we redefine here the chip's RAM layout
- * making padding explicit. 
- */
-
-typedef struct {
-	volatile unsigned char	mc_second;
-								char pad0[3];
-	volatile unsigned char	mc_alarm_second;
-								char pad1[3];
-	volatile unsigned char	mc_minute;
-								char pad2[3];
-	volatile unsigned char	mc_alarm_minute;
-								char pad3[3];
-	volatile unsigned char	mc_hour;
-								char pad4[3];
-	volatile unsigned char	mc_alarm_hour;
-								char pad5[3];
-	volatile unsigned char	mc_day_of_week;
-								char pad6[3];
-	volatile unsigned char	mc_day_of_month;
-								char pad7[3];
-	volatile unsigned char	mc_month;
-								char pad8[3];
-	volatile unsigned char	mc_year;
-								char pad9[3];
-	volatile unsigned char	mc_register_A;
-								char pad10[3];
-	volatile unsigned char	mc_register_B;
-								char pad11[3];
-	volatile unsigned char	mc_register_C;
-								char pad12[3];
-	volatile unsigned char	mc_register_D;
-								char pad13[3];
-	unsigned char		mc_non_volatile_ram[50 * 4];	/* unused */
-} mc_clock_ram_t;
-
-#define	MC_CLOCK_PADDED	1
-
-#endif	/*DECSTATION*/
-
-
-#ifdef	FLAMINGO
-#define	MC_DEFAULT_ADDRESS	0L
-
-/* padded, later */
-
-#endif	/* FLAMINGO */
-
-
-
-#ifndef	MC_CLOCK_PADDED
-typedef mc_clock_t mc_clock_ram_t;	/* No padding needed */
-#endif
-
-/*
- * Functions provided herein
- */
-int mc_probe( vm_offset_t addr, struct bus_ctlr * );
-private void mc_attach();
-
-int mc_intr();
-
-void mc_open(), mc_close(), mc_write();
-private unsigned int mc_read();
-
-private void mc_wait_for_uip( mc_clock_ram_t *clock );
-
-
-/*
- * Status
- */
-boolean_t mc_running = FALSE;
-boolean_t mc_new_century = FALSE;	/* "year" info overfloweth */
-
-private int days_per_month[12] = {
-	31, 28,	31, 30, 31, 30, 31, 31, 30, 31, 30, 31
-};
-
-private unsigned int	mc_read();		/* forward */
-private void		mc_wait_for_uip();
-
-/*
- * Where is the chip's RAM mapped
- */
-private mc_clock_ram_t	*rt_clock = MC_DEFAULT_ADDRESS;
-
-/*
- * (Auto?)Configuration
- */
-private vm_offset_t mc_std[NMC] = { 0 };
-private struct bus_device *mc_info[NMC];
-
-struct bus_driver mc_driver =
-       { mc_probe, 0, mc_attach, 0, mc_std, "mc", mc_info, };
-
-
-mc_probe(vm_offset_t addr, struct bus_ctlr *ui)
-{
-	rt_clock = (mc_clock_ram_t *)addr;
-	return 1;
-}
-
-private void
-mc_attach()
-{
-	printf(": MC146818 or like Time-Of-Year chip");
-}
-
-/*
- *	Interrupt routine
- */
-#if	MC_DOES_DELAYS
-
-private int		config_step = 3;
-private volatile int	had_intr;
-
-mc_intr(spllevel)
-	spl_t	spllevel;
-{
-	/*
-	 * Interrupt flags are read-to-clear.
-	 */
-	if (config_step > 2)
-		return (rt_clock->mc_register_C & MC_REG_C_IRQF);
-	had_intr = (rt_clock->mc_register_C & MC_REG_C_IRQF) ? 1 : 0;
-	if (config_step++ == 0)
-		accurate_config_delay(spllevel);
-	return had_intr;
-}
-#else	/* MC_DOES_DELAYS */
-
-mc_intr()
-{
-	return (rt_clock->mc_register_C);	/* clear intr */
-}
-
-#endif	/* MC_DOES_DELAYS */
-
-/*
- * Start real-time clock.
- */
-void
-mc_open()
-{
-	/*
-	 * All we should need to do is to enable interrupts, but
-	 * since we do not know what OS last ran on this box
-	 * we'll reset it all over again.  Just kidding..
-	 */
-	unsigned	unix_seconds_now;
-
-	/*
-	 * Check for battery backup power.  If we do not have it,
-	 * warn the user.  Time will be bogus only after power up.
-	 */
-	if ((rt_clock->mc_register_D & MC_REG_D_VRT) == 0)
-		printf("WARNING: clock batteries are low\n");
-
-	/*
-	 * Read the current time settings, check if the year info
-	 * has been screwed up.  
-	 */
-	unix_seconds_now = mc_read();
-
-	if (unix_seconds_now < (SECYR * (1990 - YRREF)))
-		printf("The prom has clobbered the clock\n");
-
-	time.tv_sec = (long)unix_seconds_now;
-	mc_write();
-
-	mc_running = TRUE;
-}
-
-void
-mc_close()
-{
-	/*
-	 * Disable interrupts, but keep the chip running.
-	 * Note we are called at splhigh and an interrupt
-	 * might be pending already.
-	 */
-
-	mc_intr(0);
-	rt_clock->mc_register_B &= ~(MC_REG_B_UIE|MC_REG_B_AIE|MC_REG_B_PIE);
-	mc_running = FALSE;
-#if	MC_DOES_DELAYS
-	config_step = 0;
-#endif
-}
-
-
-/*
- * Set time-of-day.  Must be called at splhigh()
- */
-void
-mc_write()
-{
-	register mc_clock_ram_t *clock = rt_clock;
-	register unsigned years, months, days, hours, minutes, seconds;
-	register unsigned unix_seconds = time.tv_sec;
-	int             frequence_selector, temp;
-	int             bogus_hz = 0;
-
-	/*
-	 * Convert U*x time into absolute time 
-	 */
-
-	years = YRREF;
-	while (1) {
-		seconds = SECYR;
-		if (LEAPYEAR(years))
-			seconds += SECDAY;
-		if (unix_seconds < seconds)
-			break;
-		unix_seconds -= seconds;
-		years++;
-	}
-
-	months = 0;
-	while (1) {
-		seconds = days_per_month[months++] * SECDAY;
-		if (months == 2 /* February */ && LEAPYEAR(years))
-			seconds += SECDAY;
-		if (unix_seconds < seconds)
-			break;
-		unix_seconds -= seconds;
-	}
-
-	days = unix_seconds / SECDAY;
-	unix_seconds -= SECDAY * days++;
-
-	hours = unix_seconds / SECHOUR;
-	unix_seconds -= SECHOUR * hours;
-
-	minutes = unix_seconds / SECMIN;
-	unix_seconds -= SECMIN * minutes;
-
-	seconds = unix_seconds;
-
-	/*
-	 * Trim years into 0-99 range.
-	 */
-	if ((years -= 1900) > 99) {
-		years -= 100;
-		mc_new_century = TRUE;
-	}
-
-	/*
-	 * Check for "hot dates" 
-	 */
-	if (days >= 28 && days <= 30 &&
-	    hours == 23 && minutes == 59 &&
-	    seconds >= 58)
-		seconds = 57;
-
-	/*
-	 * Select the interrupt frequency based on system params 
-	 */
-	switch (hz) {
-	case 1024:
-		frequence_selector = MC_BASE_32_KHz | MC_RATE_1024_Hz;
-		break;
-	case 512:
-		frequence_selector = MC_BASE_32_KHz | MC_RATE_512_Hz;
-		break;
-	case 256:
-		frequence_selector = MC_BASE_32_KHz | MC_RATE_256_Hz;
-		break;
-	case 128:
-		frequence_selector = MC_BASE_32_KHz | MC_RATE_128_Hz;
-		break;
-	case 64:
-default_frequence:
-		frequence_selector = MC_BASE_32_KHz | MC_RATE_64_Hz;
-		break;
-	default:
-		bogus_hz = hz;
-		hz = 64;
-		tick = 1000000 / 64;
-		goto default_frequence;
-	}
-
-	/*
-	 * Stop updates while we fix it 
-	 */
-	mc_wait_for_uip(clock);
-	clock->mc_register_B = MC_REG_B_STOP;
-	wbflush();
-
-	/*
-	 * Ack any pending interrupts 
-	 */
-	temp = clock->mc_register_C;
-
-	/*
-	 * Reset the frequency divider, in case we are changing it. 
-	 */
-	clock->mc_register_A = MC_BASE_RESET;
-
-	/*
-	 * Now update the time 
-	 */
-	clock->mc_second = seconds;
-	clock->mc_minute = minutes;
-	clock->mc_hour   = hours;
-	clock->mc_day_of_month = days;
-	clock->mc_month  = months;
-	clock->mc_year   = years;
-
-	/*
-	 * Spec says the VRT bit can be validated, but does not say how. I
-	 * assume it is via reading the register. 
-	 */
-	temp = clock->mc_register_D;
-
-	/*
-	 * Reconfigure the chip and get it started again 
-	 */
-	clock->mc_register_A = frequence_selector;
-	clock->mc_register_B = MC_REG_B_24HM | MC_REG_B_DM | MC_REG_B_PIE;
-
-	/*
-	 * Print warnings, if we have to 
-	 */
-	if (bogus_hz != 0)
-		printf("Unacceptable value (%d Hz) for hz, reset to %d Hz\n",
-			bogus_hz, hz);
-}
-
-
-/*
- * Internal functions
- */
-
-private void
-mc_wait_for_uip(clock)
-	mc_clock_ram_t *clock;
-{
-	while (clock->mc_register_A & MC_REG_A_UIP)
-		delay(MC_UPD_MINIMUM >> 2);
-}
-
-private unsigned int
-mc_read()
-{
-	/*
-	 * Note we only do this at boot time
-	 */
-	register unsigned years, months, days, hours, minutes, seconds;
-	register mc_clock_ram_t *clock = rt_clock;;
-
-	/*
-	 * If the chip is updating, wait 
-	 */
-	mc_wait_for_uip(clock);
-
-	years = clock->mc_year;
-	months = clock->mc_month;
-	days = clock->mc_day_of_month;
-	hours = clock->mc_hour;
-	minutes = clock->mc_minute;
-	seconds = clock->mc_second;
-
-	/*
-	 * Convert to Unix time 
-	 */
-	seconds += minutes * SECMIN;
-	seconds += hours * SECHOUR;
-	seconds += (days - 1) * SECDAY;
-	if (months > 2 /* February */ && LEAPYEAR(years))
-		seconds += SECDAY;
-	while (months > 1)
-		seconds += days_per_month[--months - 1];
-
-	/*
-	 * Note that in ten years from today (Aug,1990) the new century will
-	 * cause the trouble that mc_new_century attempts to avoid. 
-	 */
-	if (mc_new_century)
-		years += 100;
-	years += 1900;	/* chip base year in YRREF's century */
-
-	for (--years; years >= YRREF; years--) {
-		seconds += SECYR;
-		if (LEAPYEAR(years))
-			seconds += SECDAY;
-	}
-
-	return seconds;
-}
-
-#ifdef	MC_DOES_DELAYS
-
-/*
- * Timed delays
- */
-extern unsigned int cpu_speed;
-
-void
-config_delay(speed)
-{
-	/*
-	 * This is just an initial estimate, later on with the clock
-	 * running we'll tune it more accurately.
-	 */
-	cpu_speed = speed;
-}
-
-accurate_config_delay(spllevel)
-	spl_t		spllevel;
-{
-	register unsigned int	i;
-	register spl_t		s;
-	int			inner_loop_count;
-
-#ifdef	mips
-	/* find "spllevel - 1" */
-	s = spllevel | ((spllevel >> 1) & SR_INT_MASK);
-	splx(s);
-#else
-#endif
-
-	/* wait till we have an interrupt pending */
-	had_intr = 0;
-	while (!had_intr)
-		continue;
-
-	had_intr = 0;
-	i = delay_timing_function(1, &had_intr, &inner_loop_count);
-
-	splx(spllevel);
-
-	i *= hz;
-	cpu_speed = i / (inner_loop_count * 1000000);
-
-	/* roundup clock speed */
-	i /= 100000;
-	if ((i % 10) >= 5)
-		i += 5;
-	printf("Estimating CPU clock at %d Mhz\n", i / 10);
-	if (isa_pmax() && cpu_speed != MC_DELAY_PMAX) {
-		printf("%s\n", "This machine looks like a DEC 2100");
-		machine_slot[cpu_number()].cpu_subtype = CPU_SUBTYPE_MIPS_R2000;
-	}
-}
-#endif	/* MC_DOES_DELAYS */
-
-#endif	NMC > 0