1/*
2 * Product specific probe and attach routines for:
3 * Buslogic BT946, BT948, BT956, BT958 SCSI controllers
4 *
5 * Copyright (c) 1995, 1997, 1998 Justin T. Gibbs
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions, and the following disclaimer,
13 * without modification, immediately at the beginning of the file.
14 * 2. The name of the author may not be used to endorse or promote products
15 * derived from this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
21 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 *
| 1/*
2 * Product specific probe and attach routines for:
3 * Buslogic BT946, BT948, BT956, BT958 SCSI controllers
4 *
5 * Copyright (c) 1995, 1997, 1998 Justin T. Gibbs
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions, and the following disclaimer,
13 * without modification, immediately at the beginning of the file.
14 * 2. The name of the author may not be used to endorse or promote products
15 * derived from this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
21 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 *
|
29 * $Id: bt_pci.c,v 1.7 1999/05/08 21:59:38 dfr Exp $
| 29 * $Id: bt_pci.c,v 1.8 1999/07/03 20:17:01 peter Exp $
|
30 */
31
32#include <sys/param.h>
33#include <sys/systm.h>
34#include <sys/kernel.h>
35#include <sys/bus.h>
36
37#include <pci/pcireg.h>
38#include <pci/pcivar.h>
39
40#include <machine/bus_memio.h>
41#include <machine/bus_pio.h>
42#include <machine/bus.h>
43#include <machine/resource.h>
44#include <sys/rman.h>
45
46#include <dev/buslogic/btreg.h>
47
48#define BT_PCI_IOADDR PCIR_MAPS
49#define BT_PCI_MEMADDR PCIR_MAPS + 4
50
51#define PCI_DEVICE_ID_BUSLOGIC_MULTIMASTER 0x1040104Bul
52#define PCI_DEVICE_ID_BUSLOGIC_MULTIMASTER_NC 0x0140104Bul
53#define PCI_DEVICE_ID_BUSLOGIC_FLASHPOINT 0x8130104Bul
54
55static int
56bt_pci_alloc_resources(device_t dev)
57{
58 int command, type = 0, rid, zero;
59 struct resource *regs = 0;
60 struct resource *irq = 0;
61
62 command = pci_read_config(dev, PCIR_COMMAND, /*bytes*/1);
63#if 0
64 /* XXX Memory Mapped I/O seems to cause problems */
65 if (command & PCIM_CMD_MEMEN) {
66 type = SYS_RES_MEMORY;
67 rid = BT_PCI_MEMADDR;
68 regs = bus_alloc_resource(dev, type, &rid,
69 0, ~0, 1, RF_ACTIVE);
70 }
71#else
72 if (!regs && (command & PCIM_CMD_PORTEN)) {
73 type = SYS_RES_IOPORT;
74 rid = BT_PCI_IOADDR;
75 regs = bus_alloc_resource(dev, type, &rid,
76 0, ~0, 1, RF_ACTIVE);
77 }
78#endif
79 if (!regs)
80 return (ENOMEM);
81
82 zero = 0;
83 irq = bus_alloc_resource(dev, SYS_RES_IRQ, &zero,
84 0, ~0, 1, RF_ACTIVE | RF_SHAREABLE);
85 if (!irq) {
86 bus_release_resource(dev, type, rid, regs);
87 return (ENOMEM);
88 }
89
90 bt_init_softc(dev, regs, irq, 0);
91
92 return (0);
93}
94
95static void
96bt_pci_release_resources(device_t dev)
97{
98 struct bt_softc *bt = device_get_softc(dev);
99
100 if (bt->port)
101 /* XXX can't cope with memory registers anyway */
102 bus_release_resource(dev, SYS_RES_IOPORT,
103 BT_PCI_IOADDR, bt->port);
104 if (bt->irq)
105 bus_release_resource(dev, SYS_RES_IRQ, 0, bt->irq);
106 bt_free_softc(dev);
107}
108
109static int
110bt_pci_probe(device_t dev)
111{
112 switch (pci_get_devid(dev)) {
113 case PCI_DEVICE_ID_BUSLOGIC_MULTIMASTER:
114 case PCI_DEVICE_ID_BUSLOGIC_MULTIMASTER_NC:
115 {
116 struct bt_softc *bt = device_get_softc(dev);
117 pci_info_data_t pci_info;
118 int error;
119
120 error = bt_pci_alloc_resources(dev);
121 if (error)
122 return (error);
123
124 /*
125 * Determine if an ISA compatible I/O port has been
126 * enabled. If so, record the port so it will not
127 * be probed by our ISA probe. If the PCI I/O port
128 * was not set to the compatibility port, disable it.
129 */
130 error = bt_cmd(bt, BOP_INQUIRE_PCI_INFO,
131 /*param*/NULL, /*paramlen*/0,
132 (u_int8_t*)&pci_info, sizeof(pci_info),
133 DEFAULT_CMD_TIMEOUT);
134 if (error == 0
135 && pci_info.io_port < BIO_DISABLED) {
136 bt_mark_probed_bio(pci_info.io_port);
137 if (bt->bsh != bt_iop_from_bio(pci_info.io_port)) {
138 u_int8_t new_addr;
139
140 new_addr = BIO_DISABLED;
141 bt_cmd(bt, BOP_MODIFY_IO_ADDR,
142 /*param*/&new_addr,
143 /*paramlen*/1, /*reply_buf*/NULL,
144 /*reply_len*/0,
145 DEFAULT_CMD_TIMEOUT);
146 }
147 }
148 bt_pci_release_resources(dev);
149 device_set_desc(dev, "Buslogic Multi-Master SCSI Host Adapter");
150 return (0);
151 }
152 default:
153 break;
154 }
155
156 return (ENXIO);
157}
158
159static int
160bt_pci_attach(device_t dev)
161{
162 struct bt_softc *bt = device_get_softc(dev);
163 int opri;
164 int error;
165
166 /* Initialize softc */
167 error = bt_pci_alloc_resources(dev);
168 if (error) {
169 device_printf(dev, "can't allocate resources in bt_pci_attach\n");
170 return error;
171 }
172
173 /* Allocate a dmatag for our CCB DMA maps */
174 /* XXX Should be a child of the PCI bus dma tag */
| 30 */
31
32#include <sys/param.h>
33#include <sys/systm.h>
34#include <sys/kernel.h>
35#include <sys/bus.h>
36
37#include <pci/pcireg.h>
38#include <pci/pcivar.h>
39
40#include <machine/bus_memio.h>
41#include <machine/bus_pio.h>
42#include <machine/bus.h>
43#include <machine/resource.h>
44#include <sys/rman.h>
45
46#include <dev/buslogic/btreg.h>
47
48#define BT_PCI_IOADDR PCIR_MAPS
49#define BT_PCI_MEMADDR PCIR_MAPS + 4
50
51#define PCI_DEVICE_ID_BUSLOGIC_MULTIMASTER 0x1040104Bul
52#define PCI_DEVICE_ID_BUSLOGIC_MULTIMASTER_NC 0x0140104Bul
53#define PCI_DEVICE_ID_BUSLOGIC_FLASHPOINT 0x8130104Bul
54
55static int
56bt_pci_alloc_resources(device_t dev)
57{
58 int command, type = 0, rid, zero;
59 struct resource *regs = 0;
60 struct resource *irq = 0;
61
62 command = pci_read_config(dev, PCIR_COMMAND, /*bytes*/1);
63#if 0
64 /* XXX Memory Mapped I/O seems to cause problems */
65 if (command & PCIM_CMD_MEMEN) {
66 type = SYS_RES_MEMORY;
67 rid = BT_PCI_MEMADDR;
68 regs = bus_alloc_resource(dev, type, &rid,
69 0, ~0, 1, RF_ACTIVE);
70 }
71#else
72 if (!regs && (command & PCIM_CMD_PORTEN)) {
73 type = SYS_RES_IOPORT;
74 rid = BT_PCI_IOADDR;
75 regs = bus_alloc_resource(dev, type, &rid,
76 0, ~0, 1, RF_ACTIVE);
77 }
78#endif
79 if (!regs)
80 return (ENOMEM);
81
82 zero = 0;
83 irq = bus_alloc_resource(dev, SYS_RES_IRQ, &zero,
84 0, ~0, 1, RF_ACTIVE | RF_SHAREABLE);
85 if (!irq) {
86 bus_release_resource(dev, type, rid, regs);
87 return (ENOMEM);
88 }
89
90 bt_init_softc(dev, regs, irq, 0);
91
92 return (0);
93}
94
95static void
96bt_pci_release_resources(device_t dev)
97{
98 struct bt_softc *bt = device_get_softc(dev);
99
100 if (bt->port)
101 /* XXX can't cope with memory registers anyway */
102 bus_release_resource(dev, SYS_RES_IOPORT,
103 BT_PCI_IOADDR, bt->port);
104 if (bt->irq)
105 bus_release_resource(dev, SYS_RES_IRQ, 0, bt->irq);
106 bt_free_softc(dev);
107}
108
109static int
110bt_pci_probe(device_t dev)
111{
112 switch (pci_get_devid(dev)) {
113 case PCI_DEVICE_ID_BUSLOGIC_MULTIMASTER:
114 case PCI_DEVICE_ID_BUSLOGIC_MULTIMASTER_NC:
115 {
116 struct bt_softc *bt = device_get_softc(dev);
117 pci_info_data_t pci_info;
118 int error;
119
120 error = bt_pci_alloc_resources(dev);
121 if (error)
122 return (error);
123
124 /*
125 * Determine if an ISA compatible I/O port has been
126 * enabled. If so, record the port so it will not
127 * be probed by our ISA probe. If the PCI I/O port
128 * was not set to the compatibility port, disable it.
129 */
130 error = bt_cmd(bt, BOP_INQUIRE_PCI_INFO,
131 /*param*/NULL, /*paramlen*/0,
132 (u_int8_t*)&pci_info, sizeof(pci_info),
133 DEFAULT_CMD_TIMEOUT);
134 if (error == 0
135 && pci_info.io_port < BIO_DISABLED) {
136 bt_mark_probed_bio(pci_info.io_port);
137 if (bt->bsh != bt_iop_from_bio(pci_info.io_port)) {
138 u_int8_t new_addr;
139
140 new_addr = BIO_DISABLED;
141 bt_cmd(bt, BOP_MODIFY_IO_ADDR,
142 /*param*/&new_addr,
143 /*paramlen*/1, /*reply_buf*/NULL,
144 /*reply_len*/0,
145 DEFAULT_CMD_TIMEOUT);
146 }
147 }
148 bt_pci_release_resources(dev);
149 device_set_desc(dev, "Buslogic Multi-Master SCSI Host Adapter");
150 return (0);
151 }
152 default:
153 break;
154 }
155
156 return (ENXIO);
157}
158
159static int
160bt_pci_attach(device_t dev)
161{
162 struct bt_softc *bt = device_get_softc(dev);
163 int opri;
164 int error;
165
166 /* Initialize softc */
167 error = bt_pci_alloc_resources(dev);
168 if (error) {
169 device_printf(dev, "can't allocate resources in bt_pci_attach\n");
170 return error;
171 }
172
173 /* Allocate a dmatag for our CCB DMA maps */
174 /* XXX Should be a child of the PCI bus dma tag */
|
175 if (bus_dma_tag_create(/*parent*/NULL, /*alignemnt*/0, /*boundary*/0,
| 175 if (bus_dma_tag_create(/*parent*/NULL, /*alignemnt*/1, /*boundary*/0,
|
176 /*lowaddr*/BUS_SPACE_MAXADDR_32BIT,
177 /*highaddr*/BUS_SPACE_MAXADDR,
178 /*filter*/NULL, /*filterarg*/NULL,
179 /*maxsize*/BUS_SPACE_MAXSIZE_32BIT,
180 /*nsegments*/BUS_SPACE_UNRESTRICTED,
181 /*maxsegsz*/BUS_SPACE_MAXSIZE_32BIT,
182 /*flags*/0, &bt->parent_dmat) != 0) {
183 bt_pci_release_resources(dev);
184 return (ENOMEM);
185 }
186
187 /*
188 * Protect ourself from spurrious interrupts during
189 * intialization and attach. We should really rely
190 * on interrupts during attach, but we don't have
191 * access to our interrupts during ISA probes, so until
192 * that changes, we mask our interrupts during attach
193 * too.
194 */
195 opri = splcam();
196
197 if (bt_probe(dev) || bt_fetch_adapter_info(dev) || bt_init(dev)) {
198 bt_pci_release_resources(dev);
199 splx(opri);
200 return (ENXIO);
201 }
202
203 error = bt_attach(dev);
204 splx(opri);
205
206 if (error) {
207 bt_pci_release_resources(dev);
208 return (error);
209 }
210
211 return (0);
212}
213
214static device_method_t bt_pci_methods[] = {
215 /* Device interface */
216 DEVMETHOD(device_probe, bt_pci_probe),
217 DEVMETHOD(device_attach, bt_pci_attach),
218
219 { 0, 0 }
220};
221
222static driver_t bt_pci_driver = {
223 "bt",
224 bt_pci_methods,
225 sizeof(struct bt_softc),
226};
227
228static devclass_t bt_devclass;
229
230DRIVER_MODULE(bt, pci, bt_pci_driver, bt_devclass, 0, 0);
| 176 /*lowaddr*/BUS_SPACE_MAXADDR_32BIT,
177 /*highaddr*/BUS_SPACE_MAXADDR,
178 /*filter*/NULL, /*filterarg*/NULL,
179 /*maxsize*/BUS_SPACE_MAXSIZE_32BIT,
180 /*nsegments*/BUS_SPACE_UNRESTRICTED,
181 /*maxsegsz*/BUS_SPACE_MAXSIZE_32BIT,
182 /*flags*/0, &bt->parent_dmat) != 0) {
183 bt_pci_release_resources(dev);
184 return (ENOMEM);
185 }
186
187 /*
188 * Protect ourself from spurrious interrupts during
189 * intialization and attach. We should really rely
190 * on interrupts during attach, but we don't have
191 * access to our interrupts during ISA probes, so until
192 * that changes, we mask our interrupts during attach
193 * too.
194 */
195 opri = splcam();
196
197 if (bt_probe(dev) || bt_fetch_adapter_info(dev) || bt_init(dev)) {
198 bt_pci_release_resources(dev);
199 splx(opri);
200 return (ENXIO);
201 }
202
203 error = bt_attach(dev);
204 splx(opri);
205
206 if (error) {
207 bt_pci_release_resources(dev);
208 return (error);
209 }
210
211 return (0);
212}
213
214static device_method_t bt_pci_methods[] = {
215 /* Device interface */
216 DEVMETHOD(device_probe, bt_pci_probe),
217 DEVMETHOD(device_attach, bt_pci_attach),
218
219 { 0, 0 }
220};
221
222static driver_t bt_pci_driver = {
223 "bt",
224 bt_pci_methods,
225 sizeof(struct bt_softc),
226};
227
228static devclass_t bt_devclass;
229
230DRIVER_MODULE(bt, pci, bt_pci_driver, bt_devclass, 0, 0);
|