/* * Device probe and attach routines for the following * Advanced Systems Inc. SCSI controllers: * *   Connectivity Products: *	ABP920   - Bus-Master PCI (16 CDB) *	ABP930   - Bus-Master PCI (16 CDB) * *	ABP930U  - Bus-Master PCI Ultra (16 CDB) *	ABP930UA - Bus-Master PCI Ultra (16 CDB) *	ABP960   - Bus-Master PCI MAC/PC (16 CDB) ** *	ABP960U  - Bus-Master PCI MAC/PC Ultra (16 CDB) * *   Single Channel Products: *	ABP940 - Bus-Master PCI (240 CDB) *	ABP940U - Bus-Master PCI Ultra (240 CDB) *	ABP970 - Bus-Master PCI MAC/PC (240 CDB) *	ABP970U - Bus-Master PCI MAC/PC Ultra (240 CDB) * *   Dual Channel Products:   *	ABP950 - Dual Channel Bus-Master PCI (240 CDB Per Channel) * *   Footnotes: *	 * This board has been sold by SIIG as the Fast SCSI Pro PCI. *	** This board has been sold by Iomega as a Jaz Jet PCI adapter.  * * Copyright (c) 1997 Justin Gibbs. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright *    notice, this list of conditions, and the following disclaimer, *    without modification, immediately at the beginning of the file. * 2. The name of the author may not be used to endorse or promote products *    derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * *	$Id: adv_pci.c,v 1.4 1998/12/22 18:14:15 gibbs Exp $ */#include <pci.h>#if NPCI > 0#include <sys/param.h>#include <sys/systm.h>#include <sys/kernel.h>#include <machine/bus_pio.h>#include <machine/bus.h>#include <pci/pcireg.h>#include <pci/pcivar.h>#include <dev/advansys/advansys.h>#define PCI_BASEADR0	PCI_MAP_REG_START	/* I/O Address */#define PCI_BASEADR1	PCI_MAP_REG_START + 4	/* Mem I/O Address */#define	PCI_DEVICE_ID_ADVANSYS_1200A	0x110010CD#define	PCI_DEVICE_ID_ADVANSYS_1200B	0x120010CD#define	PCI_DEVICE_ID_ADVANSYS_ULTRA	0x130010CD#define	PCI_DEVICE_REV_ADVANSYS_3150	0x02#define	PCI_DEVICE_REV_ADVANSYS_3050	0x03#define ADV_PCI_MAX_DMA_ADDR    (0xFFFFFFFFL)#define ADV_PCI_MAX_DMA_COUNT   (0xFFFFFFFFL)static const char* advpciprobe(pcici_t tag, pcidi_t type);static void advpciattach(pcici_t config_id, int unit);/*  * The overrun buffer shared amongst all PCI adapters. */static  u_int8_t*	overrun_buf;static	bus_dma_tag_t	overrun_dmat;static	bus_dmamap_t	overrun_dmamap;static	bus_addr_t	overrun_physbase;static struct  pci_device adv_pci_driver = {	"adv",        advpciprobe,        advpciattach,        &adv_unit,	NULL};DATA_SET (pcidevice_set, adv_pci_driver);static const char*advpciprobe(pcici_t tag, pcidi_t type){	int rev = pci_conf_read(tag, PCI_CLASS_REG) & 0xff;	switch (type) {	case PCI_DEVICE_ID_ADVANSYS_1200A:		return ("AdvanSys ASC1200A SCSI controller");	case PCI_DEVICE_ID_ADVANSYS_1200B:		return ("AdvanSys ASC1200B SCSI controller");	case PCI_DEVICE_ID_ADVANSYS_ULTRA:		if (rev == PCI_DEVICE_REV_ADVANSYS_3150)			return ("AdvanSys ASC3150 Ultra SCSI controller");		else			return ("AdvanSys ASC3050 Ultra SCSI controller");		break;	default:		break;	}	return (NULL);}static voidadvpciattach(pcici_t config_id, int unit){	u_int16_t	io_port;	struct		adv_softc *adv;	u_int32_t	id;	u_int32_t	command;	int		error; 	/*	 * Determine the chip version.	 */	id = pci_cfgread(config_id, PCI_ID_REG, /*bytes*/4);	command = pci_cfgread(config_id, PCIR_COMMAND, /*bytes*/1);	/*	 * These cards do not allow memory mapped accesses, so we must	 * ensure that I/O accesses are available or we won't be able	 * to talk to them.	 */	if ((command & (PCIM_CMD_PORTEN|PCIM_CMD_BUSMASTEREN))	 != (PCIM_CMD_PORTEN|PCIM_CMD_BUSMASTEREN)) {		command |= PCIM_CMD_PORTEN|PCIM_CMD_BUSMASTEREN;		pci_cfgwrite(config_id, PCIR_COMMAND, command, /*bytes*/1);	}	/*	 * Early chips can't handle non-zero latency timer settings.	 */	if (id == PCI_DEVICE_ID_ADVANSYS_1200A	 || id == PCI_DEVICE_ID_ADVANSYS_1200B) {		pci_cfgwrite(config_id, PCIR_LATTIMER, /*value*/0, /*bytes*/1);	}	if (pci_map_port(config_id, PCI_BASEADR0, &io_port) == 0)		return;	if (adv_find_signature(I386_BUS_SPACE_IO, io_port) == 0)		return;	adv = adv_alloc(unit, I386_BUS_SPACE_IO, io_port);	if (adv == NULL)		return;	/* Allocate a dmatag for our transfer DMA maps */	/* XXX Should be a child of the PCI bus dma tag */	error = bus_dma_tag_create(/*parent*/NULL, /*alignment*/0,				   /*boundary*/0,				   /*lowaddr*/ADV_PCI_MAX_DMA_ADDR,				   /*highaddr*/BUS_SPACE_MAXADDR,				   /*filter*/NULL, /*filterarg*/NULL,				   /*maxsize*/BUS_SPACE_MAXSIZE_32BIT,				   /*nsegments*/BUS_SPACE_UNRESTRICTED,				   /*maxsegsz*/ADV_PCI_MAX_DMA_COUNT,				   /*flags*/0,				   &adv->parent_dmat); 	if (error != 0) {		printf("%s: Could not allocate DMA tag - error %d\n",		       adv_name(adv), error);		adv_free(adv);		return;	}	adv->init_level++;	if (overrun_buf == NULL) {		/* Need to allocate our overrun buffer */		if (bus_dma_tag_create(adv->parent_dmat,				       /*alignment*/8, /*boundary*/0,				       ADV_PCI_MAX_DMA_ADDR, BUS_SPACE_MAXADDR,				       /*filter*/NULL, /*filterarg*/NULL,				       ADV_OVERRUN_BSIZE, /*nsegments*/1,				       BUS_SPACE_MAXSIZE_32BIT, /*flags*/0,				       &overrun_dmat) != 0) {			bus_dma_tag_destroy(adv->parent_dmat);			adv_free(adv);			return;       		}		if (bus_dmamem_alloc(overrun_dmat,				     (void **)&overrun_buf,				     BUS_DMA_NOWAIT,				     &overrun_dmamap) != 0) {			bus_dma_tag_destroy(overrun_dmat);			bus_dma_tag_destroy(adv->parent_dmat);			adv_free(adv);			return;		}		/* And permanently map it in */  		bus_dmamap_load(overrun_dmat, overrun_dmamap,				overrun_buf, ADV_OVERRUN_BSIZE,				adv_map, &overrun_physbase,				/*flags*/0);	}	adv->overrun_physbase = overrun_physbase;				/*	 * Stop the chip.	 */	ADV_OUTB(adv, ADV_CHIP_CTRL, ADV_CC_HALT);	ADV_OUTW(adv, ADV_CHIP_STATUS, 0);	adv->chip_version = ADV_INB(adv, ADV_NONEISA_CHIP_REVISION);	adv->type = ADV_PCI;		/*	 * Setup active negation and signal filtering.	 */	{		u_int8_t extra_cfg;		if (adv->chip_version >= ADV_CHIP_VER_PCI_ULTRA_3150)			adv->type |= ADV_ULTRA;		if (adv->chip_version == ADV_CHIP_VER_PCI_ULTRA_3150)			extra_cfg = ADV_IFC_ACT_NEG | ADV_IFC_SLEW_RATE;		else if (adv->chip_version == ADV_CHIP_VER_PCI_ULTRA_3050)			extra_cfg = ADV_IFC_ACT_NEG | ADV_IFC_WR_EN_FILTER;		else			extra_cfg = ADV_IFC_ACT_NEG | ADV_IFC_SLEW_RATE;		ADV_OUTB(adv, ADV_REG_IFC, extra_cfg);	}	if (adv_init(adv) != 0) {		adv_free(adv);		return;	}	adv->max_dma_count = ADV_PCI_MAX_DMA_COUNT;	adv->max_dma_addr = ADV_PCI_MAX_DMA_ADDR;#if CC_DISABLE_PCI_PARITY_INT	{		u_int16_t config_msw;		config_msw = ADV_INW(adv, ADV_CONFIG_MSW);		config_msw &= 0xFFC0;		ADV_OUTW(adv, ADV_CONFIG_MSW, config_msw); 	}#endif 	if (id == PCI_DEVICE_ID_ADVANSYS_1200A	 || id == PCI_DEVICE_ID_ADVANSYS_1200B) {		adv->bug_fix_control |= ADV_BUG_FIX_IF_NOT_DWB;		adv->bug_fix_control |= ADV_BUG_FIX_ASYN_USE_SYN;		adv->fix_asyn_xfer = ~0;	}	if ((pci_map_int(config_id, adv_intr, (void *)adv, &cam_imask)) == 0) {		adv_free(adv);		return;	}		adv_attach(adv);}#endif /* NPCI > 0 */