/* $NetBSD: podulebus.c,v 1.5 1996/03/27 22:07:26 mark Exp $ */ /* * Copyright (c) 1994,1995 Mark Brinicombe. * Copyright (c) 1994 Brini. * 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. * 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. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by Brini. * 4. The name of the company nor the name of the author may be used to * endorse or promote products derived from this software without specific * prior written permission. * * THIS SOFTWARE IS PROVIDED BY BRINI ``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 BRINI 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. * * RiscBSD kernel project * * podulebus.c * * Podule probe and configuration routines * * Created : 07/11/94 */ #include #include #include #include #include #include #include #include #include #include /* * Now construct the table of know podules. * A podule description array is setup for each manufacturer id */ struct podule_description podules_0000[] = { { 0x02, "SCSI interface" }, { 0x03, "ether 1 interface" }, { 0x61, "ether 2 interface" }, { 0x00, NULL }, }; struct podule_description podules_0004[] = { { 0x14, "laser direct (Canon LBP-4)" }, { 0x00, NULL }, }; struct podule_description podules_0009[] = { { 0x52, "hawk V9 mark2" }, { 0xcb, "scanlight Video256" }, { 0xcc, "eagle M2" }, { 0xce, "lark A16" }, { 0x200, "MIDI max" }, { 0x00, NULL }, }; struct podule_description podules_0011[] = { { 0xa4, "ether 3 interface" }, { 0x00, NULL }, }; struct podule_description podules_001a[] = { { 0x95, "16 bit SCSI interface" }, { 0x00, NULL }, }; struct podule_description podules_0021[] = { { 0x58, "16 bit SCSI interface" }, { 0x00, NULL }, }; struct podule_description podules_002b[] = { { 0x67, "SCSI interface" }, { 0x00, NULL }, }; struct podule_description podules_003a[] = { { 0x3a, "SCSI II interface" }, { 0xdd, "CDFS & SLCD expansion card" }, { 0x00, NULL }, }; struct podule_description podules_0041[] = { { 0x41, "16 bit SCSI interface" }, { 0x00, NULL }, }; struct podule_description podules_0042[] = { { 0xea, "PC card" }, { 0x00, NULL }, }; struct podule_description podules_0046[] = { { 0xec, "etherlan 600 network slot interface" }, { 0x00, NULL }, }; struct podule_description podules_0050[] = { { 0x00, "BriniPort intelligent I/O interface" }, { 0xdf, "BriniLink transputer link adapter" }, { 0x00, NULL }, }; struct podule_description podules_0053[] = { { 0xe4, "ether B network slot interface" }, { 0x00, NULL }, }; struct podule_description podules_005b[] = { { 0x107, "SCSI 1 / SCSI 2 host adapter" }, { 0x00, NULL }, }; /* A podule list if setup for all the manufacturers */ struct podule_list known_podules[] = { { 0x00, "Acorn", podules_0000 }, { 0x04, "CConcepts", podules_0004 }, /* Two codes ??? */ { 0x09, "CConcepts", podules_0009 }, { 0x11, "Atomwide", podules_0011 }, { 0x1a, "Lingenuity", podules_001a }, { 0x21, "Oak", podules_0021 }, { 0x2b, "Morley", podules_002b }, { 0x3a, "Cumana", podules_003a }, { 0x41, "ARXE", podules_0041 }, { 0x42, "Aleph1", podules_0042 }, { 0x46, "I-Cubed", podules_0046 }, { 0x50, "Brini", podules_0050 }, { 0x53, "ANT", podules_0053 }, { 0x5b, "Power-tec", podules_005b }, }; /* Array of podule structures, one per possible podule */ podule_t podules[MAX_PODULES + MAX_NETSLOTS]; irqhandler_t poduleirq; extern u_int actual_mask; extern irqhandler_t *irqhandlers[NIRQS]; /* Declare prototypes */ void map_section __P((vm_offset_t, vm_offset_t, vm_offset_t)); int poduleirqhandler __P((void)); u_int poduleread __P((u_int /*address*/, int /*offset*/, int /*slottype*/)); /* * int podulebusmatch(struct device *parent, void *match, void *aux) * * Probe for the podule bus. Currently all this does is return 1 to * indicate that the podule bus was found. */ int podulebusmatch(parent, match, aux) struct device *parent; void *match; void *aux; { return (1); } int podulebusprint(aux, podulebus) void *aux; char *podulebus; { struct podule_attach_args *pa = aux; if (pa->pa_podule != NULL) { if (pa->pa_podule->slottype == SLOT_POD) printf(" [ podule %d ]:", pa->pa_podule_number); else if (pa->pa_podule->slottype == SLOT_NET) printf(" [ netslot %d ]:", pa->pa_podule_number - MAX_PODULES); else panic("Invalid slot type\n"); } /* XXXX print flags */ return (QUIET); } void podulebusscan(parent, match) struct device *parent; void *match; { struct device *dev = match; struct cfdata *cf = dev->dv_cfdata; struct podule_attach_args pa; if (cf->cf_fstate == FSTATE_STAR) panic("nope cannot handle this"); pa.pa_podule = NULL; pa.pa_podule_number = -1; if (cf->cf_loc[0] != -1) { pa.pa_podule_number = cf->cf_loc[0]; } if ((*cf->cf_attach->ca_match)(parent, dev, &pa) > 0) config_attach(parent, dev, &pa, podulebusprint); else free(dev, M_DEVBUF); } void dump_podule(podule) podule_t *podule; { printf("podule%d: ", podule->podulenum); printf("flags0=%02x ", podule->flags0); printf("flags1=%02x ", podule->flags1); printf("reserved=%02x ", podule->reserved); printf("product=%02x ", podule->product); printf("manufacturer=%02x ", podule->manufacturer); printf("country=%02x ", podule->country); printf("irq_addr=%08x ", podule->irq_addr); printf("irq_mask=%02x ", podule->irq_mask); printf("fiq_addr=%08x ", podule->fiq_addr); printf("fiq_mask=%02x ", podule->fiq_mask); printf("fast_base=%08x ", podule->fast_base); printf("medium_base=%08x ", podule->medium_base); printf("slow_base=%08x ", podule->slow_base); printf("sync_base=%08x ", podule->sync_base); printf("mod_base=%08x ", podule->mod_base); printf("easi_base=%08x ", podule->easi_base); printf("attached=%d ", podule->attached); printf("slottype=%d ", podule->slottype); printf("podulenum=%d ", podule->podulenum); printf("\n"); } void podulechunkdirectory(podule) podule_t *podule; { u_int address; u_int id; u_int size; u_int addr; int loop; address = 0x40; do { id = poduleread(podule->slow_base, address, podule->slottype); size = poduleread(podule->slow_base, address + 4, podule->slottype); size |= (poduleread(podule->slow_base, address + 8, podule->slottype) << 8); size |= (poduleread(podule->slow_base, address + 12, podule->slottype) << 16); if (id == 0xf5) { addr = poduleread(podule->slow_base, address + 16, podule->slottype); addr |= (poduleread(podule->slow_base, address + 20, podule->slottype) << 8); addr |= (poduleread(podule->slow_base, address + 24, podule->slottype) << 16); addr |= (poduleread(podule->slow_base, address + 28, podule->slottype) << 24); if (addr < 0x800) { for (loop = 0; loop < size; ++loop) printf("%c", poduleread(podule->slow_base, (addr + loop)*4, podule->slottype)); printf("\n"); } } address += 32; } while (id != 0 && address < 0x800); } void poduleexamine(podule, dev, slottype) podule_t *podule; struct device *dev; int slottype; { struct podule_list *pod_list; struct podule_description *pod_desc; /* Test to see if the podule is present */ if ((podule->flags0 & 0x02) == 0x00) { podule->slottype = slottype; if (slottype == SLOT_NET) printf("netslot%d at %s : ", podule->podulenum - MAX_PODULES, dev->dv_xname); else printf("podule%d at %s : ", podule->podulenum, dev->dv_xname); /* Is it Acorn conformant ? */ if (podule->flags0 & 0x80) printf("Non-Acorn conformant expansion card\n"); else { int id; /* Is it a simple podule ? */ id = (podule->flags0 >> 3) & 0x0f; if (id != 0) printf("Simple expansion card <%x>\n", id); else { /* Do we know this manufacturer ? */ pod_list = known_podules; while (pod_list->description) { if (pod_list->manufacturer_id == podule->manufacturer) break; ++pod_list; } if (!pod_list->description) printf("man=%04x : ", podule->manufacturer); else printf("%10s : ", pod_list->description); /* Do we know this product ? */ pod_desc = pod_list->products; while (pod_desc->description) { if (pod_desc->product_id == podule->product) break; ++pod_desc; } if (!pod_desc->description) printf("prod=%04x\n", podule->product); else printf("%s\n", pod_desc->description); if (pod_desc->description == NULL && podule->flags1 & PODULE_FLAGS_CD) podulechunkdirectory(podule); } } } } u_int poduleread(address, offset, slottype) u_int address; int offset; int slottype; { static u_int netslotoffset; if (slottype == SLOT_NET) { offset = offset >> 2; if (offset < netslotoffset) { WriteWord(address, 0); netslotoffset = 0; } while (netslotoffset < offset) { slottype = ReadWord(address); ++netslotoffset; } ++netslotoffset; return(ReadByte(address)); } return(ReadByte(address + offset)); } void podulescan(dev) struct device *dev; { int loop; podule_t *podule; u_char *address; u_int offset = 0; /* Loop round all the podules */ for (loop = 0; loop < MAX_PODULES; ++loop, offset += SIMPLE_PODULE_SIZE) { if (loop == 4) offset += PODULE_GAP; address = ((u_char *)SLOW_PODULE_BASE) + offset; podule = &podules[loop]; /* Get information from the podule header */ podule->flags0 = address[0]; podule->flags1 = address[4]; podule->reserved = address[8]; podule->product = address[12] + (address[16] << 8); podule->manufacturer = address[20] + (address[24] << 8); podule->country = address[28]; if (podule->flags1 & PODULE_FLAGS_IS) { podule->irq_addr = address[52] + (address[56] << 8) + (address[60] << 16); podule->irq_mask = address[48]; podule->fiq_addr = address[36] + (address[40] << 8) + (address[44] << 16); podule->fiq_mask = address[32]; } else { podule->irq_addr = 0; podule->irq_mask = 0; podule->fiq_addr = 0; podule->fiq_mask = 0; } podule->fast_base = FAST_PODULE_BASE + offset; podule->medium_base = MEDIUM_PODULE_BASE + offset; podule->slow_base = SLOW_PODULE_BASE + offset; podule->sync_base = SYNC_PODULE_BASE + offset; podule->mod_base = MOD_PODULE_BASE + offset; podule->easi_base = EASI_BASE + loop * EASI_SIZE; podule->attached = 0; podule->slottype = SLOT_NONE; podule->podulenum = loop; poduleexamine(podule, dev, SLOT_POD); } } void netslotscan(dev) struct device *dev; { podule_t *podule; volatile u_char *address; /* Only one netslot atm */ /* Reset the address counter */ WriteByte(NETSLOT_BASE, 0x00); address = (u_char *)NETSLOT_BASE; podule = &podules[MAX_PODULES]; /* Get information from the podule header */ podule->flags0 = *address; podule->flags1 = *address; podule->reserved = *address; podule->product = *address + (*address << 8); podule->manufacturer = *address + (*address << 8); podule->country = *address; if (podule->flags1 & PODULE_FLAGS_IS) { podule->irq_mask = *address; podule->irq_addr = *address + (*address << 8) + (*address << 16); podule->fiq_mask = *address; podule->fiq_addr = *address + (*address << 8) + (*address << 16); } else { podule->irq_addr = 0; podule->irq_mask = 0; podule->fiq_addr = 0; podule->fiq_mask = 0; } podule->fast_base = NETSLOT_BASE; podule->medium_base = NETSLOT_BASE; podule->slow_base = NETSLOT_BASE; podule->sync_base = NETSLOT_BASE; podule->mod_base = NETSLOT_BASE; podule->easi_base = 0; podule->attached = 0; podule->slottype = SLOT_NONE; podule->podulenum = MAX_PODULES; poduleexamine(podule, dev, SLOT_NET); } /* * void podulebusattach(struct device *parent, struct device *dev, void *aux) * * Attach podulebus. * This probes all the podules and sets up the podules array with * information found in the podule headers. * After identifing all the podules, all the children of the podulebus * are probed and attached. */ void podulebusattach(parent, self, aux) struct device *parent; struct device *self; void *aux; { int loop; printf("\n"); /* Ok we need to map in the podulebus */ /* Map the FAST and SYNC simple podules */ map_section(PAGE_DIRS_BASE, SYNC_PODULE_BASE & 0xfff00000, SYNC_PODULE_HW_BASE & 0xfff00000); /* Now map the EASI space */ for (loop = 0; loop < MAX_PODULES; ++loop) { int loop1; for (loop1 = loop * EASI_SIZE; loop1 < ((loop + 1) * EASI_SIZE); loop1 += (1 << 20)) map_section(PAGE_DIRS_BASE, EASI_BASE + loop1, EASI_HW_BASE + loop1); } /* * The MEDIUM and SLOW simple podules and the module space will have been * mapped when the IOMD and COMBO we mapped in for the RPC */ /* Install an podule IRQ handler */ poduleirq.ih_func = poduleirqhandler; poduleirq.ih_arg = NULL; poduleirq.ih_level = IPL_NONE; poduleirq.ih_name = "podulebus"; if (irq_claim(IRQ_PODULE, &poduleirq)) panic("Cannot claim IRQ for podulebus%d\n", IRQ_PODULE, parent->dv_unit); /* Find out what hardware is bolted on */ podulescan(self); netslotscan(self); /* Look for drivers */ config_scan(podulebusscan, self); } /* * int podule_irqhandler(void *arg) * * text irq handler to service expansion card IRQ's * * There is currently a problem here. * The spl_mask may mask out certain expansion card IRQ's e.g. SCSI * but allow others e.g. Ethernet. */ int poduleirqhandler() { int loop; irqhandler_t *handler; printf("eek ! Unknown podule IRQ received - Blocking all podule interrupts\n"); disable_irq(IRQ_PODULE); return(1); /* Loop round the expansion card handlers */ for (loop = IRQ_EXPCARD0; loop <= IRQ_EXPCARD7; ++loop) { /* Is the IRQ currently allowable */ if (actual_mask & (1 << loop)) { handler = irqhandlers[loop]; if (handler && handler->ih_irqmask) { if ((*handler->ih_irqmask) & handler->ih_irqbit) handler->ih_func(handler->ih_arg); } } } return(1); } struct cfattach podulebus_ca = { sizeof(struct device), podulebusmatch, podulebusattach }; struct cfdriver podulebus_cd = { NULL, "podulebus", DV_DULL, 1 }; /* Useful functions that drivers may share */ /* * Search the podule list for the specified manufacturer and product. * Return the podule number if the podule is not already attach and * the podule was in the required slot. * A required slot of -1 means any slot. */ int findpodule(manufacturer, product, required_slot) int manufacturer; int product; int required_slot; { int loop; for (loop = 0; loop < MAX_PODULES+MAX_NETSLOTS; ++loop) { if (podules[loop].slottype != SLOT_NONE && !podules[loop].attached && podules[loop].manufacturer == manufacturer && podules[loop].product == product && (required_slot == -1 || required_slot == loop)) return(loop); } return(-1); } /* End of podulebus.c */