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
29 #include <sys/cdefs.h>
30 __FBSDID("$FreeBSD: releng/5.2/sys/dev/ips/ips_pci.c 119997 2003-09-11 23:30:28Z ps $");
31
32 #include <dev/ips/ips.h>
33
34 static int ips_pci_free(ips_softc_t *sc);
35 static void ips_intrhook(void *arg);
36
37 static int ips_pci_probe(device_t dev)
38 {
39
40 if ((pci_get_vendor(dev) == IPS_VENDOR_ID) &&
41 (pci_get_device(dev) == IPS_MORPHEUS_DEVICE_ID)) {
42 device_set_desc(dev, "IBM ServeRAID Adapter");
43 return 0;
44 } else if ((pci_get_vendor(dev) == IPS_VENDOR_ID) &&
45 (pci_get_device(dev) == IPS_COPPERHEAD_DEVICE_ID)) {
46 device_set_desc(dev, "IBM ServeRAID Adapter");
47 return (0);
48 }
49 return(ENXIO);
50 }
51
52 static int ips_pci_attach(device_t dev)
53 {
54 u_int32_t command;
55 ips_softc_t *sc;
56
57
58 if (resource_disabled(device_get_name(dev), device_get_unit(dev))) {
59 device_printf(dev, "device is disabled\n");
60 /* but return 0 so the !$)$)*!$*) unit isn't reused */
61 return (0);
62 }
63 DEVICE_PRINTF(1, dev, "in attach.\n");
64 sc = (ips_softc_t *)device_get_softc(dev);
65 if(!sc){
66 printf("how is sc NULL?!\n");
67 return (ENXIO);
68 }
69 bzero(sc, sizeof(ips_softc_t));
70 sc->dev = dev;
71
72 if(pci_get_device(dev) == IPS_MORPHEUS_DEVICE_ID){
73 sc->ips_adapter_reinit = ips_morpheus_reinit;
74 sc->ips_adapter_intr = ips_morpheus_intr;
75 sc->ips_issue_cmd = ips_issue_morpheus_cmd;
76 } else if(pci_get_device(dev) == IPS_COPPERHEAD_DEVICE_ID){
77 sc->ips_adapter_reinit = ips_copperhead_reinit;
78 sc->ips_adapter_intr = ips_copperhead_intr;
79 sc->ips_issue_cmd = ips_issue_copperhead_cmd;
80 } else
81 goto error;
82 /* make sure busmastering is on */
83 command = pci_read_config(dev, PCIR_COMMAND, 1);
84 command |= PCIM_CMD_BUSMASTEREN;
85 pci_write_config(dev, PCIR_COMMAND, command, 1);
86 /* seting up io space */
87 sc->iores = NULL;
88 if(command & PCIM_CMD_MEMEN){
89 PRINTF(10, "trying MEMIO\n");
90 if(pci_get_device(dev) == IPS_MORPHEUS_DEVICE_ID)
91 sc->rid = PCIR_BAR(0);
92 else
93 sc->rid = PCIR_BAR(1);
94 sc->iotype = SYS_RES_MEMORY;
95 sc->iores = bus_alloc_resource(dev, sc->iotype, &sc->rid, 0, ~0, 1, RF_ACTIVE);
96 }
97 if(!sc->iores && command & PCIM_CMD_PORTEN){
98 PRINTF(10, "trying PORTIO\n");
99 sc->rid = PCIR_BAR(0);
100 sc->iotype = SYS_RES_IOPORT;
101 sc->iores = bus_alloc_resource(dev, sc->iotype, &sc->rid, 0, ~0, 1, RF_ACTIVE);
102 }
103 if(sc->iores == NULL){
104 device_printf(dev, "resource allocation failed\n");
105 return (ENXIO);
106 }
107 sc->bustag = rman_get_bustag(sc->iores);
108 sc->bushandle = rman_get_bushandle(sc->iores);
109 /*allocate an interrupt. when does the irq become active? after leaving attach? */
110 sc->irqrid = 0;
111 if(!(sc->irqres = bus_alloc_resource(dev, SYS_RES_IRQ, &sc->irqrid, 0, ~0, 1, RF_SHAREABLE | RF_ACTIVE))){
112 device_printf(dev, "irq allocation failed\n");
113 goto error;
114 }
115 if(bus_setup_intr(dev, sc->irqres, INTR_TYPE_BIO, sc->ips_adapter_intr, sc, &sc->irqcookie)){
116 device_printf(dev, "irq setup failed\n");
117 goto error;
118 }
119 if (bus_dma_tag_create( /* parent */ NULL,
120 /* alignemnt */ 1,
121 /* boundary */ 0,
122 /* lowaddr */ BUS_SPACE_MAXADDR_32BIT,
123 /* highaddr */ BUS_SPACE_MAXADDR,
124 /* filter */ NULL,
125 /* filterarg */ NULL,
126 /* maxsize */ BUS_SPACE_MAXSIZE_32BIT,
127 /* numsegs */ IPS_MAX_SG_ELEMENTS,
128 /* maxsegsize*/ BUS_SPACE_MAXSIZE_32BIT,
129 /* flags */ 0,
130 /* lockfunc */ busdma_lock_mutex,
131 /* lockarg */ &Giant,
132 &sc->adapter_dmatag) != 0) {
133 printf("IPS can't alloc dma tag\n");
134 goto error;
135 }
136 sc->ips_ich.ich_func = ips_intrhook;
137 sc->ips_ich.ich_arg = sc;
138 if (config_intrhook_establish(&sc->ips_ich) != 0) {
139 printf("IPS can't establish configuration hook\n");
140 goto error;
141 }
142 return 0;
143 error:
144 ips_pci_free(sc);
145 return (ENXIO);
146 }
147
148 static void
149 ips_intrhook(void *arg)
150 {
151 struct ips_softc *sc = (struct ips_softc *)arg;
152
153 config_intrhook_disestablish(&sc->ips_ich);
154 if (ips_adapter_init(sc))
155 ips_pci_free(sc);
156 else
157 sc->configured = 1;
158 }
159
160 static int ips_pci_free(ips_softc_t *sc)
161 {
162 if(sc->adapter_dmatag)
163 bus_dma_tag_destroy(sc->adapter_dmatag);
164 if(sc->irqcookie)
165 bus_teardown_intr(sc->dev, sc->irqres, sc->irqcookie);
166 if(sc->irqres)
167 bus_release_resource(sc->dev, SYS_RES_IRQ, sc->irqrid, sc->irqres);
168 if(sc->iores)
169 bus_release_resource(sc->dev, sc->iotype, sc->rid, sc->iores);
170 sc->configured = 0;
171 return 0;
172 }
173
174 static int ips_pci_detach(device_t dev)
175 {
176 ips_softc_t *sc;
177 DEVICE_PRINTF(1, dev, "detaching ServeRaid\n");
178 sc = (ips_softc_t *) device_get_softc(dev);
179 if (sc->configured) {
180 sc->configured = 0;
181 ips_flush_cache(sc);
182 if(ips_adapter_free(sc))
183 return EBUSY;
184 ips_pci_free(sc);
185 mtx_destroy(&sc->cmd_mtx);
186 }
187 return 0;
188 }
189
190 static int ips_pci_shutdown(device_t dev)
191 {
192 ips_softc_t *sc = (ips_softc_t *) device_get_softc(dev);
193 if (sc->configured) {
194 ips_flush_cache(sc);
195 }
196 return 0;
197 }
198
199 static device_method_t ips_driver_methods[] = {
200 DEVMETHOD(device_probe, ips_pci_probe),
201 DEVMETHOD(device_attach, ips_pci_attach),
202 DEVMETHOD(device_detach, ips_pci_detach),
203 DEVMETHOD(device_shutdown, ips_pci_shutdown),
204 {0,0}
205 };
206
207 static driver_t ips_pci_driver = {
208 "ips",
209 ips_driver_methods,
210 sizeof(ips_softc_t),
211 };
212
213 static devclass_t ips_devclass;
214 DRIVER_MODULE(ips, pci, ips_pci_driver, ips_devclass, 0, 0);
Cache object: 87b2442654078465479cca8ab974edcc
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