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 * $FreeBSD$
29 */
30
31 #include <dev/ips/ips.h>
32
33 static int ips_pci_free(ips_softc_t *sc);
34 static void ips_intrhook(void *arg);
35
36 static int ips_pci_probe(device_t dev)
37 {
38
39 if ((pci_get_vendor(dev) == IPS_VENDOR_ID) &&
40 (pci_get_device(dev) == IPS_MORPHEUS_DEVICE_ID)) {
41 device_set_desc(dev, "IBM ServeRAID Adapter");
42 return 0;
43 } else if ((pci_get_vendor(dev) == IPS_VENDOR_ID) &&
44 (pci_get_device(dev) == IPS_COPPERHEAD_DEVICE_ID)) {
45 device_set_desc(dev, "IBM ServeRAID Adapter");
46 return (0);
47 } else if ((pci_get_vendor(dev) == IPS_VENDOR_ID_ADAPTEC) &&
48 (pci_get_device(dev) == IPS_MARCO_DEVICE_ID)) {
49 device_set_desc(dev, "Adaptec ServeRAID Adapter");
50 return (0);
51 }
52 return(ENXIO);
53 }
54
55 static int ips_pci_attach(device_t dev)
56 {
57 u_int32_t command;
58 ips_softc_t *sc;
59 int tval;
60
61
62 tval = 0;
63 if (resource_int_value(device_get_name(dev), device_get_unit(dev),
64 "disabled", &tval) == 0 && tval) {
65 device_printf(dev, "device is disabled\n");
66 /* but return 0 so the !$)$)*!$*) unit isn't reused */
67 return (0);
68 }
69
70 DEVICE_PRINTF(1, dev, "in attach.\n");
71 sc = (ips_softc_t *)device_get_softc(dev);
72 if(!sc){
73 printf("how is sc NULL?!\n");
74 return (ENXIO);
75 }
76 bzero(sc, sizeof(ips_softc_t));
77 sc->dev = dev;
78
79 if(pci_get_device(dev) == IPS_MORPHEUS_DEVICE_ID){
80 sc->ips_adapter_reinit = ips_morpheus_reinit;
81 sc->ips_adapter_intr = ips_morpheus_intr;
82 sc->ips_issue_cmd = ips_issue_morpheus_cmd;
83 } else if(pci_get_device(dev) == IPS_COPPERHEAD_DEVICE_ID){
84 sc->ips_adapter_reinit = ips_copperhead_reinit;
85 sc->ips_adapter_intr = ips_copperhead_intr;
86 sc->ips_issue_cmd = ips_issue_copperhead_cmd;
87 } else if (pci_get_device(dev) == IPS_MARCO_DEVICE_ID){
88 sc->ips_adapter_reinit = ips_morpheus_reinit;
89 sc->ips_adapter_intr = ips_morpheus_intr;
90 sc->ips_issue_cmd = ips_issue_morpheus_cmd;
91 } else
92 goto error;
93 /* make sure busmastering is on */
94 command = pci_read_config(dev, PCIR_COMMAND, 1);
95 command |= PCIM_CMD_BUSMASTEREN;
96 pci_write_config(dev, PCIR_COMMAND, command, 1);
97 /* seting up io space */
98 sc->iores = NULL;
99 if(command & PCIM_CMD_MEMEN){
100 PRINTF(10, "trying MEMIO\n");
101 if(pci_get_device(dev) == IPS_COPPERHEAD_DEVICE_ID)
102 sc->rid = PCIR_BAR(1);
103 else
104 sc->rid = PCIR_BAR(0);
105 sc->iotype = SYS_RES_MEMORY;
106 sc->iores = bus_alloc_resource(dev, sc->iotype, &sc->rid,
107 0, ~0, 1, RF_ACTIVE);
108 }
109 if(!sc->iores && command & PCIM_CMD_PORTEN){
110 PRINTF(10, "trying PORTIO\n");
111 sc->rid = PCIR_BAR(0);
112 sc->iotype = SYS_RES_IOPORT;
113 sc->iores = bus_alloc_resource(dev, sc->iotype, &sc->rid,
114 0, ~0, 1, RF_ACTIVE);
115 }
116 if(sc->iores == NULL){
117 device_printf(dev, "resource allocation failed\n");
118 return (ENXIO);
119 }
120 sc->bustag = rman_get_bustag(sc->iores);
121 sc->bushandle = rman_get_bushandle(sc->iores);
122 /*allocate an interrupt. when does the irq become active? after leaving attach? */
123 sc->irqrid = 0;
124 if(!(sc->irqres = bus_alloc_resource(dev, SYS_RES_IRQ, &sc->irqrid,
125 0, ~0, 1, RF_SHAREABLE | RF_ACTIVE))){
126 device_printf(dev, "irq allocation failed\n");
127 goto error;
128 }
129 if(bus_setup_intr(dev, sc->irqres, INTR_TYPE_BIO, sc->ips_adapter_intr, sc, &sc->irqcookie)){
130 device_printf(dev, "irq setup failed\n");
131 goto error;
132 }
133 if (bus_dma_tag_create( /* parent */ NULL,
134 /* alignemnt */ 1,
135 /* boundary */ 0,
136 /* lowaddr */ BUS_SPACE_MAXADDR_32BIT,
137 /* highaddr */ BUS_SPACE_MAXADDR,
138 /* filter */ NULL,
139 /* filterarg */ NULL,
140 /* maxsize */ BUS_SPACE_MAXSIZE_32BIT,
141 /* numsegs */ IPS_MAX_SG_ELEMENTS,
142 /* maxsegsize*/ BUS_SPACE_MAXSIZE_32BIT,
143 /* flags */ 0,
144 &sc->adapter_dmatag) != 0) {
145 printf("IPS can't alloc dma tag\n");
146 goto error;
147 }
148 sc->ips_ich.ich_func = ips_intrhook;
149 sc->ips_ich.ich_arg = sc;
150 bufq_init(&sc->queue);
151 if (config_intrhook_establish(&sc->ips_ich) != 0) {
152 printf("IPS can't establish configuration hook\n");
153 goto error;
154 }
155 return 0;
156 error:
157 ips_pci_free(sc);
158 return (ENXIO);
159 }
160
161 static void
162 ips_intrhook(void *arg)
163 {
164 struct ips_softc *sc = (struct ips_softc *)arg;
165
166 config_intrhook_disestablish(&sc->ips_ich);
167 if (ips_adapter_init(sc))
168 ips_pci_free(sc);
169 else
170 sc->configured = 1;
171 }
172
173 static int ips_pci_free(ips_softc_t *sc)
174 {
175 if(sc->adapter_dmatag)
176 bus_dma_tag_destroy(sc->adapter_dmatag);
177 if(sc->irqcookie)
178 bus_teardown_intr(sc->dev, sc->irqres, sc->irqcookie);
179 if(sc->irqres)
180 bus_release_resource(sc->dev, SYS_RES_IRQ, sc->irqrid, sc->irqres);
181 if(sc->iores)
182 bus_release_resource(sc->dev, sc->iotype, sc->rid, sc->iores);
183 sc->configured = 0;
184 return 0;
185 }
186
187 static int ips_pci_detach(device_t dev)
188 {
189 ips_softc_t *sc;
190 DEVICE_PRINTF(1, dev, "detaching ServeRaid\n");
191 sc = (ips_softc_t *) device_get_softc(dev);
192 if (sc->configured) {
193 sc->configured = 0;
194 ips_flush_cache(sc);
195 if(ips_adapter_free(sc))
196 return EBUSY;
197 ips_pci_free(sc);
198 #if 0 /* XXX */
199 bioq_flush(&sc->queue, NULL, ENXIO);
200 #endif
201 }
202 return 0;
203 }
204
205 static int ips_pci_shutdown(device_t dev)
206 {
207 ips_softc_t *sc = (ips_softc_t *) device_get_softc(dev);
208 if (sc->configured) {
209 ips_flush_cache(sc);
210 }
211 return 0;
212 }
213
214 static device_method_t ips_driver_methods[] = {
215 DEVMETHOD(device_probe, ips_pci_probe),
216 DEVMETHOD(device_attach, ips_pci_attach),
217 DEVMETHOD(device_detach, ips_pci_detach),
218 DEVMETHOD(device_shutdown, ips_pci_shutdown),
219 {0,0}
220 };
221
222 static driver_t ips_pci_driver = {
223 "ips",
224 ips_driver_methods,
225 sizeof(ips_softc_t),
226 };
227
228 static devclass_t ips_devclass;
229 DRIVER_MODULE(ips, pci, ips_pci_driver, ips_devclass, 0, 0);
Cache object: f72226c881cb8c3dcdb155c37d8a1821
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