cy_pci.c revision 90101
118901Sdg/* 218901Sdg * Copyright (c) 1996, David Greenman 318901Sdg * All rights reserved. 418901Sdg * 518901Sdg * Redistribution and use in source and binary forms, with or without 618901Sdg * modification, are permitted provided that the following conditions 718901Sdg * are met: 818901Sdg * 1. Redistributions of source code must retain the above copyright 918901Sdg * notice unmodified, this list of conditions, and the following 1018901Sdg * disclaimer. 1118901Sdg * 2. Redistributions in binary form must reproduce the above copyright 1218901Sdg * notice, this list of conditions and the following disclaimer in the 1318901Sdg * documentation and/or other materials provided with the distribution. 1418901Sdg * 1518901Sdg * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 1618901Sdg * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 1718901Sdg * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 1818901Sdg * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 1918901Sdg * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 2018901Sdg * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 2118901Sdg * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2218901Sdg * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 2318901Sdg * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 2418901Sdg * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 2518901Sdg * SUCH DAMAGE. 2618901Sdg * 2750477Speter * $FreeBSD: head/sys/dev/cy/cy_pci.c 90101 2002-02-02 02:05:44Z bde $ 2818901Sdg */ 2918901Sdg 3018901Sdg/* 3118901Sdg * Cyclades Y PCI serial interface driver 3218901Sdg */ 3318901Sdg 3442691Sbde#include "opt_cy_pci_fastintr.h" 3542691Sbde 3618901Sdg#include <sys/param.h> 3718901Sdg#include <sys/systm.h> 3818901Sdg#include <sys/kernel.h> 3965930Sphk#include <sys/bus.h> 4071892Sbde 4171892Sbde#include <machine/bus.h> 4271892Sbde#include <sys/rman.h> 4371892Sbde#include <machine/resource.h> 4471892Sbde 4518901Sdg#include <vm/vm.h> 4618901Sdg#include <vm/pmap.h> 4718901Sdg 4871892Sbde#include <dev/pci/pcivar.h> 4918901Sdg 5018901Sdg#include <pci/cy_pcireg.h> 5118901Sdg 5218901Sdgextern int cyattach_common(void *, int); /* Not exactly correct */ 5318901Sdgextern void cyintr(int); 5418901Sdg 5571892Sbdestatic int cy_pci_attach __P((device_t dev)); 5671892Sbdestatic int cy_pci_probe __P((device_t dev)); 5718901Sdg 5871892Sbdestatic device_method_t cy_pci_methods[] = { 5971892Sbde /* Device interface. */ 6071892Sbde DEVMETHOD(device_probe, cy_pci_probe), 6171892Sbde DEVMETHOD(device_attach, cy_pci_attach), 6271892Sbde 6371892Sbde { 0, 0 } 6418901Sdg}; 6518901Sdg 6671892Sbdestatic driver_t cy_pci_driver = { 6771892Sbde "cy", 6871892Sbde cy_pci_methods, 6971892Sbde 0, 7071892Sbde}; 7171892Sbde 7271892Sbdestatic devclass_t cy_devclass; 7371892Sbde 7471892SbdeDRIVER_MODULE(cy, pci, cy_pci_driver, cy_devclass, 0, 0); 7571892Sbde 7671892Sbdestatic int 7771892Sbdecy_pci_probe(dev) 7871892Sbde device_t dev; 7918901Sdg{ 8071892Sbde u_int32_t device_id; 8171892Sbde 8271892Sbde device_id = pci_get_devid(dev); 8346879Sbde device_id &= ~0x00060000; 8471892Sbde if (device_id != 0x0100120e && device_id != 0x0101120e) 8571892Sbde return (ENXIO); 8671892Sbde device_set_desc(dev, "Cyclades Cyclom-Y Serial Adapter"); 8771892Sbde return (0); 8818901Sdg} 8918901Sdg 9071892Sbdestatic int 9171892Sbdecy_pci_attach(dev) 9271892Sbde device_t dev; 9318901Sdg{ 9471892Sbde struct resource *ioport_res, *irq_res, *mem_res; 9571892Sbde void *irq_cookie, *vaddr; 9618901Sdg u_int32_t ioport; 9771892Sbde int adapter, irq_setup, ioport_rid, irq_rid, mem_rid; 9842541Sbde u_char plx_ver; 9918901Sdg 10071892Sbde ioport_res = NULL; 10171892Sbde irq_res = NULL; 10271892Sbde mem_res = NULL; 10318901Sdg 10471892Sbde ioport_rid = CY_PCI_BASE_ADDR1; 10571892Sbde ioport_res = bus_alloc_resource(dev, SYS_RES_IOPORT, &ioport_rid, 10671892Sbde 0ul, ~0ul, 0ul, RF_ACTIVE); 10771892Sbde if (ioport_res == NULL) { 10871892Sbde device_printf(dev, "ioport resource allocation failed\n"); 10971892Sbde goto fail; 11071892Sbde } 11171892Sbde ioport = rman_get_start(ioport_res); 11271892Sbde 11371892Sbde mem_rid = CY_PCI_BASE_ADDR2; 11471892Sbde mem_res = bus_alloc_resource(dev, SYS_RES_MEMORY, &mem_rid, 11571892Sbde 0ul, ~0ul, 0ul, RF_ACTIVE); 11671892Sbde if (mem_res == NULL) { 11771892Sbde device_printf(dev, "memory resource allocation failed\n"); 11871892Sbde goto fail; 11971892Sbde } 12071892Sbde vaddr = rman_get_virtual(mem_res); 12171892Sbde 12218901Sdg adapter = cyattach_common(vaddr, 1); 12318901Sdg if (adapter < 0) { 12471892Sbde device_printf(dev, "no ports found!\n"); 12518901Sdg goto fail; 12618901Sdg } 12718901Sdg 12818901Sdg /* 12918901Sdg * Allocate our interrupt. 13018901Sdg * XXX Using the ISA interrupt handler directly is a bit of a violation 13118901Sdg * since it doesn't actually take the same argument. For PCI, the 13218901Sdg * argument is a void * token, but for ISA it is a unit. Since 13318901Sdg * there is no overlap in PCI/ISA unit numbers for this driver, and 13418901Sdg * since the ISA driver must handle the interrupt anyway, we use 13518901Sdg * the unit number as the token even for PCI. 13618901Sdg */ 13771892Sbde irq_rid = 0; 13871892Sbde irq_res = bus_alloc_resource(dev, SYS_RES_IRQ, &irq_rid, 0ul, ~0ul, 0ul, 13971892Sbde RF_SHAREABLE | RF_ACTIVE); 14071892Sbde if (irq_res == NULL) { 14171892Sbde device_printf(dev, "interrupt resource allocation failed\n"); 14271892Sbde goto fail; 14371892Sbde } 14442691Sbde#ifdef CY_PCI_FASTINTR 14571892Sbde irq_setup = bus_setup_intr(dev, irq_res, INTR_TYPE_TTY | INTR_FAST, 14671892Sbde (driver_intr_t *)cyintr, (void *)adapter, &irq_cookie); 14790101Sbde#else 14890101Sbde irq_setup = ENXIO; 14942691Sbde#endif 15071892Sbde if (irq_setup != 0) 15171892Sbde irq_setup = bus_setup_intr(dev, irq_res, INTR_TYPE_TTY, 15271892Sbde (driver_intr_t *)cyintr, (void *)adapter, &irq_cookie); 15371892Sbde if (irq_setup != 0) { 15471892Sbde device_printf(dev, "interrupt setup failed\n"); 15518901Sdg goto fail; 15618901Sdg } 15742691Sbde 15818901Sdg /* 15918901Sdg * Enable the "local" interrupt input to generate a 16018901Sdg * PCI interrupt. 16118901Sdg */ 16242541Sbde plx_ver = *((u_char *)vaddr + PLX_VER) & 0x0f; 16342540Sbde switch (plx_ver) { 16442541Sbde case PLX_9050: 16542540Sbde outw(ioport + CY_PLX_9050_ICS, 16642540Sbde inw(ioport + CY_PLX_9050_ICS) | CY_PLX_9050_ICS_IENABLE | 16742540Sbde CY_PLX_9050_ICS_LOCAL_IENABLE); 16842540Sbde break; 16942541Sbde case PLX_9060: 17042541Sbde case PLX_9080: 17142541Sbde default: /* Old board, use PLX_9060 values. */ 17242541Sbde outw(ioport + CY_PLX_9060_ICS, 17342541Sbde inw(ioport + CY_PLX_9060_ICS) | CY_PLX_9060_ICS_IENABLE | 17442541Sbde CY_PLX_9060_ICS_LOCAL_IENABLE); 17542540Sbde break; 17642540Sbde } 17742540Sbde 17871892Sbde return (0); 17918901Sdg 18018901Sdgfail: 18171892Sbde if (ioport_res != NULL) 18271892Sbde bus_release_resource(dev, SYS_RES_IOPORT, ioport_rid, 18371892Sbde ioport_res); 18471892Sbde if (irq_res != NULL) 18571892Sbde bus_release_resource(dev, SYS_RES_IRQ, irq_rid, irq_res); 18671892Sbde if (mem_res != NULL) 18771892Sbde bus_release_resource(dev, SYS_RES_MEMORY, mem_rid, mem_res); 18871892Sbde return (ENXIO); 18918901Sdg} 190