u_long	l; 
static ahc_device_setup_t ahc_aic7770_EISA_setup;static ahc_device_setup_t ahc_aic7770_setup;struct aic7770_identity aic7770_ident_table[] ={	{		ID_AHA_274x,		0xFFFFFFFF,		"Adaptec 274X SCSI adapter",		ahc_aic7770_EISA_setup	},	{		ID_AHA_284xB,		0xFFFFFFFE,		"Adaptec 284X SCSI adapter",		ahc_aic7770_VL_setup	},	{		ID_AHA_284x,		0xFFFFFFFE,		"Adaptec 284X SCSI adapter (BIOS Disabled)",		ahc_aic7770_VL_setup	},	{		ID_OLV_274x,		0xFFFFFFFF,		"Adaptec (Olivetti OEM) 274X SCSI adapter",		ahc_aic7770_EISA_setup	},	{		ID_OLV_274xD,		0xFFFFFFFF,		"Adaptec (Olivetti OEM) 274X Differential SCSI adapter",		ahc_aic7770_EISA_setup	},	/* Generic chip probes for devices we don't know 'exactly' */	{		ID_AIC7770,		0xFFFFFFFF,		"Adaptec aic7770 SCSI adapter",		ahc_aic7770_EISA_setup	}};const int ahc_num_aic7770_devs = NUM_ELEMENTS(aic7770_ident_table);struct aic7770_identity *aic7770_find_device(uint32_t id){	struct	aic7770_identity *entry;	int	i;	for (i = 0; i < ahc_num_aic7770_devs; i++) {		entry = &aic7770_ident_table[i];		if (entry->full_id == (id & entry->id_mask))			return (entry);	}	return (NULL);}intaic7770_config(struct ahc_softc *ahc, struct aic7770_identity *entry, u_int io){	u_long	l;	int	error;	int	have_seeprom;	u_int	hostconf;	u_int   irq;	u_int	intdef;	error = entry->setup(ahc);	have_seeprom = 0;	if (error != 0)		return (error);	error = aic7770_map_registers(ahc, io);	if (error != 0)		return (error);	/*	 * Before we continue probing the card, ensure that	 * its interrupts are *disabled*.  We don't want	 * a misstep to hang the machine in an interrupt	 * storm.	 */	ahc_intr_enable(ahc, FALSE);	ahc->description = entry->name;	error = ahc_softc_init(ahc);	if (error != 0)		return (error);	ahc->bus_chip_init = aic7770_chip_init;	ahc->bus_suspend = aic7770_suspend;	ahc->bus_resume = aic7770_resume;	error = ahc_reset(ahc, /*reinit*/FALSE);	if (error != 0)		return (error);	/* Make sure we have a valid interrupt vector */	intdef = ahc_inb(ahc, INTDEF);	irq = intdef & VECTOR;	switch (irq) {	case 9:	case 10:	case 11:	case 12:	case 14:	case 15:		break;	default:		printf("aic7770_config: invalid irq setting %d\n", intdef);		return (ENXIO);	}	if ((intdef & EDGE_TRIG) != 0)		ahc->flags |= AHC_EDGE_INTERRUPT;	switch (ahc->chip & (AHC_EISA|AHC_VL)) {	case AHC_EISA:	{		u_int biosctrl;		u_int scsiconf;		u_int scsiconf1;		biosctrl = ahc_inb(ahc, HA_274_BIOSCTRL);		scsiconf = ahc_inb(ahc, SCSICONF);		scsiconf1 = ahc_inb(ahc, SCSICONF + 1);		/* Get the primary channel information */		if ((biosctrl & CHANNEL_B_PRIMARY) != 0)			ahc->flags |= 1;		if ((biosctrl & BIOSMODE) == BIOSDISABLED) {			ahc->flags |= AHC_USEDEFAULTS;		} else {			if ((ahc->features & AHC_WIDE) != 0) {				ahc->our_id = scsiconf1 & HWSCSIID;				if (scsiconf & TERM_ENB)					ahc->flags |= AHC_TERM_ENB_A;			} else {				ahc->our_id = scsiconf & HSCSIID;				ahc->our_id_b = scsiconf1 & HSCSIID;				if (scsiconf & TERM_ENB)					ahc->flags |= AHC_TERM_ENB_A;				if (scsiconf1 & TERM_ENB)					ahc->flags |= AHC_TERM_ENB_B;			}		}		if ((ahc_inb(ahc, HA_274_BIOSGLOBAL) & HA_274_EXTENDED_TRANS))			ahc->flags |= AHC_EXTENDED_TRANS_A|AHC_EXTENDED_TRANS_B;		break;	}	case AHC_VL:	{		have_seeprom = aha2840_load_seeprom(ahc);		break;	}	default:		break;	}	if (have_seeprom == 0) {		free(ahc->seep_config, M_DEVBUF);		ahc->seep_config = NULL;	}	/*	 * Ensure autoflush is enabled	 */	ahc_outb(ahc, SBLKCTL, ahc_inb(ahc, SBLKCTL) & ~AUTOFLUSHDIS);	/* Setup the FIFO threshold and the bus off time */	hostconf = ahc_inb(ahc, HOSTCONF);	ahc_outb(ahc, BUSSPD, hostconf & DFTHRSH);	ahc_outb(ahc, BUSTIME, (hostconf << 2) & BOFF);	ahc->bus_softc.aic7770_softc.busspd = hostconf & DFTHRSH;	ahc->bus_softc.aic7770_softc.bustime = (hostconf << 2) & BOFF;	/*	 * Generic aic7xxx initialization.	 */	error = ahc_init(ahc);	if (error != 0)		return (error);	error = aic7770_map_int(ahc, irq);	if (error != 0)		return (error);	ahc->init_level++;	/*	 * Enable the board's BUS drivers	 */	ahc_outb(ahc, BCTL, ENABLE);	return (0);}static intaic7770_chip_init(struct ahc_softc *ahc){	ahc_outb(ahc, BUSSPD, ahc->bus_softc.aic7770_softc.busspd);	ahc_outb(ahc, BUSTIME, ahc->bus_softc.aic7770_softc.bustime);	ahc_outb(ahc, SBLKCTL, ahc_inb(ahc, SBLKCTL) & ~AUTOFLUSHDIS);	ahc_outb(ahc, BCTL, ENABLE);	return (ahc_chip_init(ahc));}static intaic7770_suspend(struct ahc_softc *ahc){	return (ahc_suspend(ahc));}static intaic7770_resume(struct ahc_softc *ahc){	return (ahc_resume(ahc));}/* * Read the 284x SEEPROM. */static intaha2840_load_seeprom(struct ahc_softc *ahc){	struct	seeprom_descriptor sd;	struct	seeprom_config *sc;	int	have_seeprom;	uint8_t scsi_conf;	sd.sd_ahc = ahc;	sd.sd_control_offset = SEECTL_2840;	sd.sd_status_offset = STATUS_2840;	sd.sd_dataout_offset = STATUS_2840;			sd.sd_chip = C46;	sd.sd_MS = 0;	sd.sd_RDY = EEPROM_TF;	sd.sd_CS = CS_2840;	sd.sd_CK = CK_2840;	sd.sd_DO = DO_2840;	sd.sd_DI = DI_2840;	sc = ahc->seep_config;	if (bootverbose)		printf("%s: Reading SEEPROM...", ahc_name(ahc));	have_seeprom = ahc_read_seeprom(&sd, (uint16_t *)sc,					/*start_addr*/0, sizeof(*sc)/2);	if (have_seeprom) {		if (ahc_verify_cksum(sc) == 0) {			if(bootverbose)				printf ("checksum error\n");			have_seeprom = 0;		} else if (bootverbose) {			printf("done.\n");		}	}	if (!have_seeprom) {		if (bootverbose)			printf("%s: No SEEPROM available\n", ahc_name(ahc));		ahc->flags |= AHC_USEDEFAULTS;	} else {		/*		 * Put the data we've collected down into SRAM		 * where ahc_init will find it.		 */		int	 i;		int	 max_targ;		uint16_t discenable;		max_targ = (ahc->features & AHC_WIDE) != 0 ? 16 : 8;		discenable = 0;		for (i = 0; i < max_targ; i++){			uint8_t target_settings;			target_settings = (sc->device_flags[i] & CFXFER) << 4;			if (sc->device_flags[i] & CFSYNCH)				target_settings |= SOFS;			if (sc->device_flags[i] & CFWIDEB)				target_settings |= WIDEXFER;			if (sc->device_flags[i] & CFDISC)				discenable |= (0x01 << i);			ahc_outb(ahc, TARG_SCSIRATE + i, target_settings);		}		ahc_outb(ahc, DISC_DSB, ~(discenable & 0xff));		ahc_outb(ahc, DISC_DSB + 1, ~((discenable >> 8) & 0xff));		ahc->our_id = sc->brtime_id & CFSCSIID;		scsi_conf = (ahc->our_id & 0x7);		if (sc->adapter_control & CFSPARITY)			scsi_conf |= ENSPCHK;		if (sc->adapter_control & CFRESETB)			scsi_conf |= RESET_SCSI;		if (sc->bios_control & CF284XEXTEND)					ahc->flags |= AHC_EXTENDED_TRANS_A;		/* Set SCSICONF info */		ahc_outb(ahc, SCSICONF, scsi_conf);		if (sc->adapter_control & CF284XSTERM)			ahc->flags |= AHC_TERM_ENB_A;	}	return (have_seeprom);}static intahc_aic7770_VL_setup(struct ahc_softc *ahc){	int error;	error = ahc_aic7770_setup(ahc);	ahc->chip |= AHC_VL;	return (error);}static intahc_aic7770_EISA_setup(struct ahc_softc *ahc){	int error;	error = ahc_aic7770_setup(ahc);	ahc->chip |= AHC_EISA;	return (error);}
10457	/local/tlutelli/issta_data/temp/c/2005_temp/2005/10457/0336ee5aed1f9a5a6a04e3deabd7797dc193ccd3/aic7770.c/buggy/drivers/scsi/aic7xxx/aic7770.c