/* * Product specific probe and attach routines for: * Buslogic BT74x SCSI controllers * * Copyright (c) 1995 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. Absolutely no warranty of function or purpose is made by the author * Justin T. Gibbs. * 4. Modifications may be freely made to this file if the above conditions * are met. * * $Id: bt74x.c,v 1.4 1996/01/31 18:02:18 gibbs Exp $ */ #include "eisa.h" #if NEISA > 0 #include #include #include #include #include #include #include #include #include #define EISA_DEVICE_ID_BUSLOGIC_74X_B 0x0ab34201 #define EISA_DEVICE_ID_BUSLOGIC_74X_C 0x0ab34202 #define EISA_DEVICE_ID_AMI_4801 0x05a94801 #define BT_IOSIZE 0x04 /* Move to central header */ #define BT_EISA_IOSIZE 0x100 #define BT_EISA_SLOT_OFFSET 0xc00 #define EISA_IOCONF 0x08C #define PORTADDR 0x07 #define PORT_330 0x00 #define PORT_334 0x01 #define PORT_230 0x02 #define PORT_234 0x03 #define PORT_130 0x04 #define PORT_134 0x05 #define IRQ_CHANNEL 0xe0 #define INT_11 0x40 #define INT_10 0x20 #define INT_15 0xa0 #define INT_12 0x60 #define INT_14 0x80 #define INT_9 0x00 #define EISA_IRQ_TYPE 0x08D #define LEVEL 0x40 /* Definitions for the AMI Series 48 controler */ #define AMI_EISA_IOSIZE 0x500 /* Two separate ranges?? */ #define AMI_EISA_SLOT_OFFSET 0x800 #define AMI_EISA_IOCONF 0x000 #define AMI_DMA_CHANNEL 0x03 #define AMI_IRQ_CHANNEL 0x1c #define AMI_INT_15 0x14 #define AMI_INT_14 0x10 #define AMI_INT_12 0x0c #define AMI_INT_11 0x00 #define AMI_INT_10 0x08 #define AMI_INT_9 0x04 #define AMI_BIOS_ADDR 0xe0 #define AMI_EISA_IOCONF1 0x001 #define AMI_PORTADDR 0x0e #define AMI_PORT_334 0x08 #define AMI_PORT_330 0x00 #define AMI_PORT_234 0x0c #define AMI_PORT_230 0x04 #define AMI_PORT_134 0x0a #define AMI_PORT_130 0x02 #define AMI_IRQ_LEVEL 0x01 #define AMI_MISC2_OPTIONS 0x49E #define AMI_ENABLE_ISA_DMA 0x08 static int bt_eisa_probe __P((void)); static int bt_eisa_attach __P((struct eisa_device *e_dev)); struct eisa_driver bt_eisa_driver = { "bt", bt_eisa_probe, bt_eisa_attach, /*shutdown*/NULL, &bt_unit }; DATA_SET (eisadriver_set, bt_eisa_driver); static struct kern_devconf kdc_eisa_bt = { 0, 0, 0, /* filled in by dev_attach */ "bt", 0, { MDDT_EISA, 0, "bio" }, eisa_generic_externalize, 0, 0, EISA_EXTERNALLEN, &kdc_eisa0, /* parent */ 0, /* parentdata */ DC_UNCONFIGURED, /* always start out here */ NULL, DC_CLS_MISC /* host adapters aren't special */ }; static char *bt_match __P((eisa_id_t type)); static char* bt_match(type) eisa_id_t type; { switch(type) { case EISA_DEVICE_ID_BUSLOGIC_74X_B: return ("Buslogic 74xB SCSI host adapter"); break; case EISA_DEVICE_ID_BUSLOGIC_74X_C: return ("Buslogic 74xC SCSI host adapter"); break; case EISA_DEVICE_ID_AMI_4801: return ("AMI Series 48 SCSI host adapter"); break; default: break; } return (NULL); } static int bt_eisa_probe(void) { u_long iobase; char intdef; u_long irq; struct eisa_device *e_dev = NULL; int count; count = 0; while ((e_dev = eisa_match_dev(e_dev, bt_match))) { u_char ioconf; u_long port; int irq; iobase = (e_dev->ioconf.slot * EISA_SLOT_SIZE); if(e_dev->id == EISA_DEVICE_ID_AMI_4801) { u_char ioconf1; iobase += AMI_EISA_SLOT_OFFSET; eisa_add_iospace(e_dev, iobase, AMI_EISA_IOSIZE, RESVADDR_NONE); ioconf = inb(iobase + AMI_EISA_IOCONF); ioconf1 = inb(iobase + AMI_EISA_IOCONF1); /* Determine "ISA" I/O port */ switch (ioconf1 & AMI_PORTADDR) { case AMI_PORT_330: port = 0x330; break; case AMI_PORT_334: port = 0x334; break; case AMI_PORT_230: port = 0x230; break; case AMI_PORT_234: port = 0x234; break; case AMI_PORT_134: port = 0x134; break; case AMI_PORT_130: port = 0x130; break; default: /* Disabled */ printf("bt: AMI EISA Adapter at " "slot %d has a disabled I/O " "port. Cannot attach.\n", e_dev->ioconf.slot); continue; } eisa_add_iospace(e_dev, port, BT_IOSIZE, RESVADDR_NONE); /* Determine our IRQ */ switch (ioconf & AMI_IRQ_CHANNEL) { case AMI_INT_11: irq = 11; break; case AMI_INT_10: irq = 10; break; case AMI_INT_15: irq = 15; break; case AMI_INT_12: irq = 12; break; case AMI_INT_14: irq = 14; break; case AMI_INT_9: irq = 9; break; default: /* Disabled */ printf("bt: AMI EISA Adapter at " "slot %d has its IRQ disabled. " "Cannot attach.\n", e_dev->ioconf.slot); continue; } } else { iobase += BT_EISA_SLOT_OFFSET; eisa_add_iospace(e_dev, iobase, BT_EISA_IOSIZE, RESVADDR_NONE); ioconf = inb(iobase + EISA_IOCONF); /* Determine "ISA" I/O port */ switch (ioconf & PORTADDR) { case PORT_330: port = 0x330; break; case PORT_334: port = 0x334; break; case PORT_230: port = 0x230; break; case PORT_234: port = 0x234; break; case PORT_130: port = 0x130; break; case PORT_134: port = 0x134; break; default: /* Disabled */ printf("bt: Buslogic EISA Adapter at " "slot %d has a disabled I/O " "port. Cannot attach.\n", e_dev->ioconf.slot); continue; } eisa_add_iospace(e_dev, port, BT_IOSIZE, RESVADDR_NONE); /* Determine our IRQ */ switch (ioconf & IRQ_CHANNEL) { case INT_11: irq = 11; break; case INT_10: irq = 10; break; case INT_15: irq = 15; break; case INT_12: irq = 12; break; case INT_14: irq = 14; break; case INT_9: irq = 9; break; default: /* Disabled */ printf("bt: Buslogic EISA Adapter at " "slot %d has its IRQ disabled. " "Cannot attach.\n", e_dev->ioconf.slot); continue; } } eisa_add_intr(e_dev, irq); eisa_registerdev(e_dev, &bt_eisa_driver, &kdc_eisa_bt); count++; } return count; } static int bt_eisa_attach(e_dev) struct eisa_device *e_dev; { struct bt_data *bt; int unit = e_dev->unit; int irq = ffs(e_dev->ioconf.irq) - 1; resvaddr_t *ioport; resvaddr_t *eisa_ioport; u_char level_intr; /* * The addresses are sorted in increasing order * so we know the port to pass to the core bt * driver comes first. */ ioport = e_dev->ioconf.ioaddrs.lh_first; if(!ioport) return -1; eisa_ioport = ioport->links.le_next; if(!eisa_ioport) return -1; if(e_dev->id == EISA_DEVICE_ID_AMI_4801) level_intr = inb(eisa_ioport->addr + AMI_EISA_IOCONF1) & AMI_IRQ_LEVEL; else level_intr = inb(eisa_ioport->addr + EISA_IRQ_TYPE) & LEVEL; eisa_reg_start(e_dev); if(eisa_reg_iospace(e_dev, ioport)) return -1; if(eisa_reg_iospace(e_dev, eisa_ioport)) return -1; if(!(bt = bt_alloc(unit, ioport->addr))) return -1; if(eisa_reg_intr(e_dev, irq, bt_intr, (void *)bt, &bio_imask, /*shared ==*/level_intr)) { bt_free(bt); return -1; } eisa_reg_end(e_dev); /* * Now that we know we own the resources we need, do the full * card initialization. */ if(bt_init(bt)){ bt_free(bt); /* * The board's IRQ line will not be left enabled * if we can't intialize correctly, so its safe * to release the irq. */ eisa_release_intr(e_dev, irq, bt_intr); return -1; } e_dev->kdc->kdc_state = DC_BUSY; /* host adapters always busy */ /* Attach sub-devices - always succeeds */ bt_attach(bt); if(eisa_enable_intr(e_dev, irq)) { bt_free(bt); eisa_release_intr(e_dev, irq, bt_intr); return -1; } return 0; } #endif /* NEISA > 0 */