2 * Copyright (c) 1996, David Greenman
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice unmodified, this list of conditions, and the following
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.
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
27 * $FreeBSD: src/sys/pci/cy_pci.c,v 1.17.2.1 2002/03/17 04:14:18 bde Exp $
28 * $DragonFly: src/sys/dev/serial/cy/cy_pci.c,v 1.10 2007/04/12 18:35:08 swildner Exp $
32 * Cyclades Y PCI serial interface driver
35 #include "opt_cy_pci_fastintr.h"
37 #include <sys/param.h>
38 #include <sys/systm.h>
39 #include <sys/kernel.h>
44 #include <bus/pci/pcivar.h>
46 #include "cy_pcireg.h"
48 #ifdef CY_PCI_FASTINTR
49 #include <machine_base/isa/intr_machdep.h>
52 static const char *cy_probe (pcici_t, pcidi_t);
53 static void cy_attach (pcici_t, int);
55 extern int cyattach_common(void *, int); /* Not exactly correct */
56 extern void cyintr(int);
58 static u_long cy_count;
60 static struct pci_device cy_device = {
67 COMPAT_PCI_DRIVER(cy_pci, cy_device);
70 cy_probe(pcici_t config_id, pcidi_t device_id)
72 device_id &= ~0x00060000;
73 if (device_id == 0x0100120e || device_id == 0x0101120e)
74 return ("Cyclades Cyclom-Y Serial Adapter");
79 cy_attach(pcici_t config_id, int unit)
87 ioport = (u_int32_t) pci_conf_read(config_id, CY_PCI_BASE_ADDR1) & ~0x3;
88 paddr = pci_conf_read(config_id, CY_PCI_BASE_ADDR2) & ~0xf;
90 if (!pci_map_mem(config_id, CY_PCI_BASE_ADDR2, &vaddr, &paddr)) {
91 kprintf("cy%d: couldn't map shared memory\n", unit);
95 vaddr = pmap_mapdev(paddr, 0x4000);
97 adapter = cyattach_common(vaddr, 1);
100 * No ports found. Release resources and punt.
102 kprintf("cy%d: no ports found!\n", unit);
107 * Allocate our interrupt.
108 * XXX Using the ISA interrupt handler directly is a bit of a violation
109 * since it doesn't actually take the same argument. For PCI, the
110 * argument is a void * token, but for ISA it is a unit. Since
111 * there is no overlap in PCI/ISA unit numbers for this driver, and
112 * since the ISA driver must handle the interrupt anyway, we use
113 * the unit number as the token even for PCI.
116 #ifdef CY_PCI_FASTINTR
117 !pci_map_int_right(config_id, (pci_inthand_t *)cyintr,
119 INTR_EXCL | INTR_FAST) &&
121 !pci_map_int_right(config_id, (pci_inthand_t *)cyintr,
122 (void *)adapter, 0)) {
123 kprintf("cy%d: couldn't map interrupt\n", unit);
128 * Enable the "local" interrupt input to generate a
131 plx_ver = *((u_char *)vaddr + PLX_VER) & 0x0f;
134 outw(ioport + CY_PLX_9050_ICS,
135 CY_PLX_9050_ICS_IENABLE | CY_PLX_9050_ICS_LOCAL_IENABLE |
136 CY_PLX_9050_ICS_LOCAL_IPOLARITY);
140 default: /* Old board, use PLX_9060 values. */
141 outw(ioport + CY_PLX_9060_ICS,
142 inw(ioport + CY_PLX_9060_ICS) | CY_PLX_9060_ICS_IENABLE |
143 CY_PLX_9060_ICS_LOCAL_IENABLE);
150 /* XXX should release any allocated virtual memory */