~kris/9p

9hist

ref: 3f85b6589809fc7d9f674dd73f26bbf641d90ef2 9hist/pc/pcmciamodem.c -rw-r--r-- 1.1 KiB
3f85b658 — David du Colombier Plan 9 from Bell Labs 1999-01-15 27 years ago
                                                                                
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#include "u.h"
#include "../port/lib.h"
#include "mem.h"
#include "dat.h"
#include "fns.h"
#include "io.h"
#include "ureg.h"
#include "../port/error.h"

/*
 *  PCMCIA modem.
 *  By default, this will set it up with the port and irq of
 *  COM2 unless a serialx=type=com line is found in plan9.ini.
 *  The assumption is that a laptop with a pcmcia will have only
 *  one com port.
 */

enum {
	Maxcard=	8,
};

static char* modems[] = {
	"IBM 33.6 Data/Fax/Voice Modem",
	"CM-56G",				/* Xircom CreditCard Modem 56 - GlobalACCESS */
	"KeepInTouch",
	0,
};

void
pcmciamodemlink(void)
{
	ISAConf isa;
	int i, j, slot;

	i = 0;
	for(;;){
		memset(&isa, 0, sizeof(isa));

		/* look for a configuration line */
		for(; i < Maxcard; i++){
			if(isaconfig("serial", i, &isa))
			if(cistrcmp(isa.type, "com") == 0)
				break;
			memset(&isa, 0, sizeof(isa));
		}

		/* default is COM2 */
		if(isa.irq == 0)
			isa.irq = 3;
		if(isa.port == 0)
			isa.port = 0x2F8;

		slot = -1;
		for(j = 0; modems[j]; j++){
			slot = pcmspecial(modems[j], &isa);
			if(slot >= 0)
				break;
		}
		if(slot < 0)
			break;
	}
}