FreeBSD/Linux Kernel Cross Reference
sys/dev/ips/ips_pci.c
1 /*-
2 * Copyright (c) 2002 Adaptec Inc.
3 * All rights reserved.
4 *
5 * Written by: David Jeffery
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 *
28 * $FreeBSD: releng/5.1/sys/dev/ips/ips_pci.c 114902 2003-05-11 06:36:49Z scottl $
29 */
30
31
32 #include <dev/ips/ips.h>
33 static int ips_pci_free(ips_softc_t *sc);
34
35 static int ips_pci_probe(device_t dev)
36 {
37
38 if ((pci_get_vendor(dev) == IPS_VENDOR_ID) &&
39 (pci_get_device(dev) == IPS_MORPHEUS_DEVICE_ID)) {
40 device_set_desc(dev, "IBM ServeRAID Adapter");
41 return 0;
42 } else if ((pci_get_vendor(dev) == IPS_VENDOR_ID) &&
43 (pci_get_device(dev) == IPS_COPPERHEAD_DEVICE_ID)) {
44 device_set_desc(dev, "IBM ServeRAID Adapter");
45 return (0);
46 }
47 return(ENXIO);
48 }
49
50 static int ips_pci_attach(device_t dev)
51 {
52 u_int32_t command;
53 ips_softc_t *sc;
54
55 DEVICE_PRINTF(1, dev, "in attach.\n");
56 sc = (ips_softc_t *)device_get_softc(dev);
57 if(!sc){
58 printf("how is sc NULL?!\n");
59 return (ENXIO);
60 }
61 bzero(sc, sizeof(ips_softc_t));
62 sc->dev = dev;
63
64 if(pci_get_device(dev) == IPS_MORPHEUS_DEVICE_ID){
65 sc->ips_adapter_reinit = ips_morpheus_reinit;
66 sc->ips_adapter_intr = ips_morpheus_intr;
67 sc->ips_issue_cmd = ips_issue_morpheus_cmd;
68 } else if(pci_get_device(dev) == IPS_COPPERHEAD_DEVICE_ID){
69 sc->ips_adapter_reinit = ips_copperhead_reinit;
70 sc->ips_adapter_intr = ips_copperhead_intr;
71 sc->ips_issue_cmd = ips_issue_copperhead_cmd;
72 } else
73 goto error;
74 /* make sure busmastering is on */
75 command = pci_read_config(dev, PCIR_COMMAND, 1);
76 command |= PCIM_CMD_BUSMASTEREN;
77 pci_write_config(dev, PCIR_COMMAND, command, 1);
78 /* seting up io space */
79 sc->iores = NULL;
80 if(command & PCIM_CMD_MEMEN){
81 PRINTF(10, "trying MEMIO\n");
82 if(pci_get_device(dev) == IPS_MORPHEUS_DEVICE_ID)
83 sc->rid = PCIR_MAPS;
84 else
85 sc->rid = PCIR_MAPS + 4;
86 sc->iotype = SYS_RES_MEMORY;
87 sc->iores = bus_alloc_resource(dev, sc->iotype, &sc->rid, 0, ~0, 1, RF_ACTIVE);
88 }
89 if(!sc->iores && command & PCIM_CMD_PORTEN){
90 PRINTF(10, "trying PORTIO\n");
91 sc->rid = PCIR_MAPS;
92 sc->iotype = SYS_RES_IOPORT;
93 sc->iores = bus_alloc_resource(dev, sc->iotype, &sc->rid, 0, ~0, 1, RF_ACTIVE);
94 }
95 if(sc->iores == NULL){
96 device_printf(dev, "resource allocation failed\n");
97 return (ENXIO);
98 }
99 sc->bustag = rman_get_bustag(sc->iores);
100 sc->bushandle = rman_get_bushandle(sc->iores);
101 /*allocate an interrupt. when does the irq become active? after leaving attach? */
102 sc->irqrid = 0;
103 if(!(sc->irqres = bus_alloc_resource(dev, SYS_RES_IRQ, &sc->irqrid, 0, ~0, 1, RF_SHAREABLE | RF_ACTIVE))){
104 device_printf(dev, "irq allocation failed\n");
105 goto error;
106 }
107 if(bus_setup_intr(dev, sc->irqres, INTR_TYPE_BIO, sc->ips_adapter_intr, sc, &sc->irqcookie)){
108 device_printf(dev, "irq setup failed\n");
109 goto error;
110 }
111 if (bus_dma_tag_create( /* parent */ NULL,
112 /* alignemnt */ 1,
113 /* boundary */ 0,
114 /* lowaddr */ BUS_SPACE_MAXADDR_32BIT,
115 /* highaddr */ BUS_SPACE_MAXADDR,
116 /* filter */ NULL,
117 /* filterarg */ NULL,
118 /* maxsize */ BUS_SPACE_MAXSIZE_32BIT,
119 /* numsegs */ IPS_MAX_SG_ELEMENTS,
120 /* maxsegsize*/ BUS_SPACE_MAXSIZE_32BIT,
121 /* flags */ 0,
122 &sc->adapter_dmatag) != 0) {
123 printf("IPS can't alloc dma tag\n");
124 goto error;
125 }
126 if(ips_adapter_init(sc))
127 goto error;
128 return 0;
129 error:
130 ips_pci_free(sc);
131 return (ENXIO);
132 }
133
134 static int ips_pci_free(ips_softc_t *sc)
135 {
136 if(sc->adapter_dmatag)
137 bus_dma_tag_destroy(sc->adapter_dmatag);
138 if(sc->irqcookie)
139 bus_teardown_intr(sc->dev, sc->irqres, sc->irqcookie);
140 if(sc->irqres)
141 bus_release_resource(sc->dev, SYS_RES_IRQ, sc->irqrid, sc->irqres);
142 if(sc->iores)
143 bus_release_resource(sc->dev, sc->iotype, sc->rid, sc->iores);
144 return 0;
145 }
146
147 static int ips_pci_detach(device_t dev)
148 {
149 ips_softc_t *sc;
150 DEVICE_PRINTF(1, dev, "detaching ServeRaid\n");
151 sc = (ips_softc_t *) device_get_softc(dev);
152 ips_flush_cache(sc);
153 if(ips_adapter_free(sc))
154 return EBUSY;
155 ips_pci_free(sc);
156 mtx_destroy(&sc->cmd_mtx);
157 return 0;
158 }
159
160 static int ips_pci_shutdown(device_t dev)
161 {
162 ips_softc_t *sc = (ips_softc_t *) device_get_softc(dev);
163 ips_flush_cache(sc);
164 return 0;
165 }
166
167 static device_method_t ips_driver_methods[] = {
168 DEVMETHOD(device_probe, ips_pci_probe),
169 DEVMETHOD(device_attach, ips_pci_attach),
170 DEVMETHOD(device_detach, ips_pci_detach),
171 DEVMETHOD(device_shutdown, ips_pci_shutdown),
172 {0,0}
173 };
174
175 static driver_t ips_pci_driver = {
176 "ips",
177 ips_driver_methods,
178 sizeof(ips_softc_t),
179 };
180
181 static devclass_t ips_devclass;
182 DRIVER_MODULE(ips, pci, ips_pci_driver, ips_devclass, 0, 0);
Cache object: 0758cc92d57c8bd857bf9b10bad470c3
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