/* * Device probe and attach routines for the following * Advanced Systems Inc. SCSI controllers: * * Connectivity Products: * ABP510/5150 - Bus-Master ISA (240 CDB) * * ABP5140 - Bus-Master ISA PnP (16 CDB) * ** * ABP5142 - Bus-Master ISA PnP with floppy (16 CDB) *** * * Single Channel Products: * ABP542 - Bus-Master ISA with floppy (240 CDB) * ABP842 - Bus-Master VL (240 CDB) * * Dual Channel Products: * ABP852 - Dual Channel Bus-Master VL (240 CDB Per Channel) * * * This board has been shipped by HP with the 4020i CD-R drive. * The board has no BIOS so it cannot control a boot device, but * it can control any secondary SCSI device. * ** This board has been sold by SIIG as the i540 SpeedMaster. * *** This board has been sold by SIIG as the i542 SpeedMaster. * * Copyright (c) 1996, 1997 Justin T. 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_isa.c,v 1.5 1998/10/10 00:44:12 imp Exp $ */ #include #include #include #include #include #include #include #include #include #define ADV_ISA_MAX_DMA_ADDR (0x00FFFFFFL) #define ADV_ISA_MAX_DMA_COUNT (0x00FFFFFFL) #define ADV_VL_MAX_DMA_ADDR (0x07FFFFFFL) #define ADV_VL_MAX_DMA_COUNT (0x07FFFFFFL) /* * The overrun buffer shared amongst all ISA/VL adapters. */ static u_int8_t* overrun_buf; bus_dma_tag_t overrun_dmat; bus_dmamap_t overrun_dmamap; bus_addr_t overrun_physbase; /* Possible port addresses an ISA or VL adapter can live at */ u_int16_t adv_isa_ioports[] = { 0x100, 0x110, /* First selection in BIOS setup */ 0x120, 0x130, /* Second selection in BIOS setup */ 0x140, 0x150, /* Third selection in BIOS setup */ 0x190, /* Fourth selection in BIOS setup */ 0x210, /* Fifth selection in BIOS setup */ 0x230, /* Sixth selection in BIOS setup */ 0x250, /* Seventh selection in BIOS setup */ 0x330 /* Eighth and default selection in BIOS setup */ }; #define MAX_ISA_IOPORT_INDEX (sizeof(adv_isa_ioports)/sizeof(u_int16_t) - 1) static int advisaprobe(struct isa_device *id); static int advisaattach(struct isa_device *id); static void adv_set_isapnp_wait_for_key(void); static int adv_get_isa_dma_channel(struct adv_softc *adv); static int adv_set_isa_dma_settings(struct adv_softc *adv); void adv_isa_intr(void *unit); struct isa_driver advdriver = { advisaprobe, advisaattach, "adv" }; static int advisaprobe(struct isa_device *id) { int port_index; int max_port_index; /* * Default to scanning all possible device locations. */ port_index = 0; max_port_index = MAX_ISA_IOPORT_INDEX; if (id->id_iobase > 0) { for (;port_index <= max_port_index; port_index++) if (id->id_iobase >= adv_isa_ioports[port_index]) break; if ((port_index > max_port_index) || (id->id_iobase != adv_isa_ioports[port_index])) { printf("adv%d: Invalid baseport of 0x%x specified. " "Neerest valid baseport is 0x%x. Failing " "probe.\n", id->id_unit, id->id_iobase, (port_index <= max_port_index) ? adv_isa_ioports[port_index] : adv_isa_ioports[max_port_index]); return 0; } max_port_index = port_index; } /* Perform the actual probing */ adv_set_isapnp_wait_for_key(); for (;port_index <= max_port_index; port_index++) { u_int16_t port_addr = adv_isa_ioports[port_index]; bus_size_t maxsegsz; bus_size_t maxsize; bus_addr_t lowaddr; int error; if (port_addr == 0) /* Already been attached */ continue; id->id_iobase = port_addr; if (haveseen_isadev(id, CC_IOADDR | CC_QUIET)) continue; if (adv_find_signature(I386_BUS_SPACE_IO, port_addr)) { /* * Got one. Now allocate our softc * and see if we can initialize the card. */ struct adv_softc *adv; adv = adv_alloc(id->id_unit, I386_BUS_SPACE_IO, port_addr); if (adv == NULL) return (0); adv_unit++; id->id_iobase = adv->bsh; /* * Stop the chip. */ ADV_OUTB(adv, ADV_CHIP_CTRL, ADV_CC_HALT); ADV_OUTW(adv, ADV_CHIP_STATUS, 0); /* * Determine the chip version. */ adv->chip_version = ADV_INB(adv, ADV_NONEISA_CHIP_REVISION); if ((adv->chip_version >= ADV_CHIP_MIN_VER_VL) && (adv->chip_version <= ADV_CHIP_MAX_VER_VL)) { adv->type = ADV_VL; maxsegsz = ADV_VL_MAX_DMA_COUNT; maxsize = BUS_SPACE_MAXSIZE_32BIT; lowaddr = ADV_VL_MAX_DMA_ADDR; id->id_drq = -1; } else if ((adv->chip_version >= ADV_CHIP_MIN_VER_ISA) && (adv->chip_version <= ADV_CHIP_MAX_VER_ISA)) { if (adv->chip_version >= ADV_CHIP_MIN_VER_ISA_PNP) { adv->type = ADV_ISAPNP; ADV_OUTB(adv, ADV_REG_IFC, ADV_IFC_INIT_DEFAULT); } else { adv->type = ADV_ISA; } maxsegsz = ADV_ISA_MAX_DMA_COUNT; maxsize = BUS_SPACE_MAXSIZE_24BIT; lowaddr = ADV_ISA_MAX_DMA_ADDR; adv->isa_dma_speed = ADV_DEF_ISA_DMA_SPEED; adv->isa_dma_channel = adv_get_isa_dma_channel(adv); id->id_drq = adv->isa_dma_channel; } else { panic("advisaprobe: Unknown card revision\n"); } /* * Allocate a parent dmatag for all tags created * by the MI portions of the advansys driver */ /* XXX Should be a child of the ISA bus dma tag */ error = bus_dma_tag_create(/*parent*/NULL, /*alignemnt*/0, /*boundary*/0, lowaddr, /*highaddr*/BUS_SPACE_MAXADDR, /*filter*/NULL, /*filterarg*/NULL, maxsize, /*nsegs*/BUS_SPACE_UNRESTRICTED, maxsegsz, /*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 (0); } 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_ISA_MAX_DMA_ADDR, BUS_SPACE_MAXADDR, /*filter*/NULL, /*filterarg*/NULL, ADV_OVERRUN_BSIZE, /*nsegments*/1, BUS_SPACE_MAXSIZE_32BIT, /*flags*/0, &overrun_dmat) != 0) { adv_free(adv); return (0); } if (bus_dmamem_alloc(overrun_dmat, (void **)&overrun_buf, BUS_DMA_NOWAIT, &overrun_dmamap) != 0) { bus_dma_tag_destroy(overrun_dmat); adv_free(adv); return (0); } /* 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; if (adv_init(adv) != 0) { adv_free(adv); return (0); } switch (adv->type) { case ADV_ISAPNP: if (adv->chip_version == ADV_CHIP_VER_ASYN_BUG){ adv->bug_fix_control |= ADV_BUG_FIX_ASYN_USE_SYN; adv->fix_asyn_xfer = ~0; } /* Fall Through */ case ADV_ISA: adv->max_dma_count = ADV_ISA_MAX_DMA_COUNT; adv->max_dma_addr = ADV_ISA_MAX_DMA_ADDR; adv_set_isa_dma_settings(adv); break; case ADV_VL: adv->max_dma_count = ADV_VL_MAX_DMA_COUNT; adv->max_dma_addr = ADV_VL_MAX_DMA_ADDR; break; default: panic("advisaprobe: Invalid card type\n"); } /* Determine our IRQ */ if (id->id_irq == 0 /* irq ? */) id->id_irq = 1 << adv_get_chip_irq(adv); else adv_set_chip_irq(adv, ffs(id->id_irq) - 1); id->id_intr = adv_isa_intr; /* Mark as probed */ adv_isa_ioports[port_index] = 0; return 1; } } return 0; } static int advisaattach(struct isa_device *id) { struct adv_softc *adv; adv = advsoftcs[id->id_unit]; return (adv_attach(adv)); } static int adv_get_isa_dma_channel(struct adv_softc *adv) { int channel; channel = ADV_INW(adv, ADV_CONFIG_LSW) & ADV_CFG_LSW_ISA_DMA_CHANNEL; if (channel == 0x03) return (0); else if (channel == 0x00) return (7); return (channel + 4); } static int adv_set_isa_dma_settings(struct adv_softc *adv) { u_int16_t cfg_lsw; u_int8_t value; if ((adv->isa_dma_channel >= 5) && (adv->isa_dma_channel <= 7)) { if (adv->isa_dma_channel == 7) value = 0x00; else value = adv->isa_dma_channel - 4; cfg_lsw = ADV_INW(adv, ADV_CONFIG_LSW) & ~ADV_CFG_LSW_ISA_DMA_CHANNEL; cfg_lsw |= value; ADV_OUTW(adv, ADV_CONFIG_LSW, cfg_lsw); adv->isa_dma_speed &= 0x07; adv_set_bank(adv, 1); ADV_OUTB(adv, ADV_DMA_SPEED, adv->isa_dma_speed); adv_set_bank(adv, 0); isa_dmacascade(adv->isa_dma_channel); } return (0); } static void adv_set_isapnp_wait_for_key(void) { static int isapnp_wait_set = 0; if (isapnp_wait_set == 0) { outb(ADV_ISA_PNP_PORT_ADDR, 0x02); outb(ADV_ISA_PNP_PORT_WRITE, 0x02); isapnp_wait_set++; } return; } /* * Handle an ISA interrupt. * XXX should go away as soon as ISA interrupt handlers * take a (void *) arg. */ void adv_isa_intr(void *unit) { struct adv_softc *arg = advsoftcs[(int)unit]; adv_intr((void *)arg); }