1/*- 2 * Copyright (c) 1996, David Greenman 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice unmodified, this list of conditions, and the following 10 * disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 */ 27 28/* 29 * Cyclades Y PCI serial interface driver 30 */ 31 32#include <sys/cdefs.h> 33__FBSDID("$FreeBSD$"); 34 35#include "opt_cy_pci_fastintr.h" 36 37#include <sys/param.h> 38#include <sys/bus.h> 39#include <sys/kernel.h> 40#include <sys/module.h> 41 42#include <machine/bus.h> 43#include <sys/rman.h> 44#include <machine/resource.h> 45 46#include <dev/pci/pcivar.h> 47 48#include <dev/cy/cyvar.h> 49 50#define CY_PCI_BASE_ADDR0 0x10 51#define CY_PCI_BASE_ADDR1 0x14 52#define CY_PCI_BASE_ADDR2 0x18 53 54#define CY_PLX_9050_ICS 0x4c 55#define CY_PLX_9060_ICS 0x68 56#define CY_PLX_9050_ICS_IENABLE 0x040 57#define CY_PLX_9050_ICS_LOCAL_IENABLE 0x001 58#define CY_PLX_9050_ICS_LOCAL_IPOLARITY 0x002 59#define CY_PLX_9060_ICS_IENABLE 0x100 60#define CY_PLX_9060_ICS_LOCAL_IENABLE 0x800 61 62/* Cyclom-Y Custom Register for PLX ID. */ 63#define PLX_VER 0x3400 64#define PLX_9050 0x0b 65#define PLX_9060 0x0c 66#define PLX_9080 0x0d 67 68static int cy_pci_attach(device_t dev); 69static int cy_pci_probe(device_t dev); 70 71static device_method_t cy_pci_methods[] = { 72 /* Device interface. */ 73 DEVMETHOD(device_probe, cy_pci_probe), 74 DEVMETHOD(device_attach, cy_pci_attach), 75 76 { 0, 0 } 77}; 78 79static driver_t cy_pci_driver = { 80 cy_driver_name, 81 cy_pci_methods, 82 0, 83}; 84 85DRIVER_MODULE(cy, pci, cy_pci_driver, cy_devclass, 0, 0); 86MODULE_DEPEND(cy, pci, 1, 1, 1); 87 88static int 89cy_pci_probe(dev) 90 device_t dev; 91{ 92 u_int32_t device_id; 93 94 device_id = pci_get_devid(dev); 95 device_id &= ~0x00060000; 96 if (device_id != 0x0100120e && device_id != 0x0101120e) 97 return (ENXIO); 98 device_set_desc(dev, "Cyclades Cyclom-Y Serial Adapter"); 99 return (BUS_PROBE_DEFAULT); 100} 101 102static int 103cy_pci_attach(dev) 104 device_t dev; 105{ 106 struct resource *ioport_res, *irq_res, *mem_res; 107 void *irq_cookie, *vaddr, *vsc; 108 u_int32_t ioport; 109 int irq_setup, ioport_rid, irq_rid, mem_rid; 110 u_char plx_ver; 111 112 ioport_res = NULL; 113 irq_res = NULL; 114 mem_res = NULL; 115 116 ioport_rid = CY_PCI_BASE_ADDR1; 117 ioport_res = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &ioport_rid, 118 RF_ACTIVE); 119 if (ioport_res == NULL) { 120 device_printf(dev, "ioport resource allocation failed\n"); 121 goto fail; 122 } 123 ioport = rman_get_start(ioport_res); 124 125 mem_rid = CY_PCI_BASE_ADDR2; 126 mem_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &mem_rid, 127 RF_ACTIVE); 128 if (mem_res == NULL) { 129 device_printf(dev, "memory resource allocation failed\n"); 130 goto fail; 131 } 132 vaddr = rman_get_virtual(mem_res); 133 134 vsc = cyattach_common(vaddr, 1); 135 if (vsc == NULL) { 136 device_printf(dev, "no ports found!\n"); 137 goto fail; 138 } 139 140 irq_rid = 0; 141 irq_res = bus_alloc_resource_any(dev, SYS_RES_IRQ, &irq_rid, 142 RF_SHAREABLE | RF_ACTIVE); 143 if (irq_res == NULL) { 144 device_printf(dev, "interrupt resource allocation failed\n"); 145 goto fail; 146 } 147#ifdef CY_PCI_FASTINTR 148 irq_setup = bus_setup_intr(dev, irq_res, INTR_TYPE_TTY, 149 cyintr, NULL, vsc, &irq_cookie); 150#else 151 irq_setup = ENXIO; 152#endif 153 if (irq_setup != 0) 154 irq_setup = bus_setup_intr(dev, irq_res, INTR_TYPE_TTY, 155 NULL, (driver_intr_t *)cyintr, vsc, &irq_cookie); 156 if (irq_setup != 0) { 157 device_printf(dev, "interrupt setup failed\n"); 158 goto fail; 159 } 160 161 /* 162 * Enable the "local" interrupt input to generate a 163 * PCI interrupt. 164 */ 165 plx_ver = *((u_char *)vaddr + PLX_VER) & 0x0f; 166 switch (plx_ver) { 167 case PLX_9050: 168 outw(ioport + CY_PLX_9050_ICS, 169 CY_PLX_9050_ICS_IENABLE | CY_PLX_9050_ICS_LOCAL_IENABLE | 170 CY_PLX_9050_ICS_LOCAL_IPOLARITY); 171 break; 172 case PLX_9060: 173 case PLX_9080: 174 default: /* Old board, use PLX_9060 values. */ 175 outw(ioport + CY_PLX_9060_ICS, 176 inw(ioport + CY_PLX_9060_ICS) | CY_PLX_9060_ICS_IENABLE | 177 CY_PLX_9060_ICS_LOCAL_IENABLE); 178 break; 179 } 180 181 return (0); 182 183fail: 184 if (ioport_res != NULL) 185 bus_release_resource(dev, SYS_RES_IOPORT, ioport_rid, 186 ioport_res); 187 if (irq_res != NULL) 188 bus_release_resource(dev, SYS_RES_IRQ, irq_rid, irq_res); 189 if (mem_res != NULL) 190 bus_release_resource(dev, SYS_RES_MEMORY, mem_rid, mem_res); 191 return (ENXIO); 192} 193