/* * Device probe and attach routines for the following * Advanced Systems Inc. SCSI controllers: * * Connectivity Products: * ABP5140 - Bus-Master PnP ISA 16 CDB * * Single Channel Products: * ABP542 - Bus-Master ISA 240 CDB * ABP5150 - Bus-Master ISA 240 CDB (shipped by HP with the 4020i CD-R drive) * ABP842 - Bus-Master VL 240 CDB * * Dual Channel Products: * ABP852 - Dual Channel Bus-Master VL 240 CDB Per Channel * * Copyright (c) 1996 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 immediately at the beginning of the file, without modification, * this list of conditions, and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. 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. * * $Id$ */ #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) /* 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_short) - 1) static int advisaprobe __P((struct isa_device *id)); static int advisaattach __P((struct isa_device *id)); static void adv_set_isapnp_wait_for_key __P((void)); static int adv_find_signature __P((u_int16_t iobase)); void adv_isa_intr __P((int unit)); struct isa_driver advdriver = { advisaprobe, advisaattach, "adv" }; static int advisaprobe(id) 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]; if (port_addr == 0) /* Already been attached */ continue; if (adv_find_signature(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, port_addr); if (adv == NULL) return (0); id->id_iobase = adv->iobase; /* * Determine the chip version. */ adv->chip_version = ADV_INB(adv, ADV_NONEISA_CHIP_REVISION); 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->needs_async_bug_fix = TARGET_BIT_VECTOR_SET; /* Fall Through */ case ADV_ISA: adv->max_dma_count = ADV_ISA_MAX_DMA_COUNT; break; case ADV_VL: adv->max_dma_count = ADV_VL_MAX_DMA_COUNT; break; } if ((adv->type & ADV_ISAPNP) == ADV_ISAPNP) { } /* 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); /* Mark as probed */ adv_isa_ioports[port_index] = 0; break; } } return 1; } static int advisaattach(id) struct isa_device *id; { struct adv_softc *adv; adv = advsoftcs[id->id_unit]; return (adv_attach(adv)); } 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; } /* * Determine if there is a board at "iobase" by looking * for the AdvanSys signatures. Return 1 if a board is * found, 0 otherwise. */ static int adv_find_signature(iobase) u_int16_t iobase; { u_int16_t signature; if (inb(iobase + ADV_SIGNATURE_BYTE) == ADV_1000_ID1B) { signature = inw(iobase + ADV_SIGNATURE_WORD ); if ((signature == ADV_1000_ID0W) || (signature == ADV_1000_ID0W_FIX)) return (1); } return (0); } /* * Handle an ISA interrupt. * XXX should go away as soon as ISA interrupt handlers * take a (void *) arg. */ void adv_isa_intr(unit) int unit; { struct adv_softc *arg = advsoftcs[unit]; adv_intr((void *)arg); }