1/*
2 * FreeBSD, PCI product support functions
3 *
4 * Copyright (c) 1995-2001 Justin T. Gibbs
5 * All rights reserved.
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 * without modification, immediately at the beginning of the file.
13 * 2. The name of the author may not be used to endorse or promote products
14 * derived from this software without specific prior written permission.
15 *
16 * Alternatively, this software may be distributed under the terms of the
17 * GNU Public License ("GPL").
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
23 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * SUCH DAMAGE.
30 *
31 * $Id$
32 *
| 1/*
2 * FreeBSD, PCI product support functions
3 *
4 * Copyright (c) 1995-2001 Justin T. Gibbs
5 * All rights reserved.
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 * without modification, immediately at the beginning of the file.
13 * 2. The name of the author may not be used to endorse or promote products
14 * derived from this software without specific prior written permission.
15 *
16 * Alternatively, this software may be distributed under the terms of the
17 * GNU Public License ("GPL").
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
23 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * SUCH DAMAGE.
30 *
31 * $Id$
32 *
|
34 */
35
36#include <dev/aic7xxx/aic7xxx_freebsd.h>
37
38#define AHC_PCI_IOADDR PCIR_MAPS /* I/O Address */
39#define AHC_PCI_MEMADDR (PCIR_MAPS + 4) /* Mem I/O Address */
40
41static int ahc_pci_probe(device_t dev);
42static int ahc_pci_attach(device_t dev);
43
44static device_method_t ahc_pci_methods[] = {
45 /* Device interface */
46 DEVMETHOD(device_probe, ahc_pci_probe),
47 DEVMETHOD(device_attach, ahc_pci_attach),
48 DEVMETHOD(device_detach, ahc_detach),
49 { 0, 0 }
50};
51
52static driver_t ahc_pci_driver = {
53 "ahc",
54 ahc_pci_methods,
55 sizeof(struct ahc_softc)
56};
57
58static devclass_t ahc_devclass;
59
60DRIVER_MODULE(ahc, pci, ahc_pci_driver, ahc_devclass, 0, 0);
61DRIVER_MODULE(ahc, cardbus, ahc_pci_driver, ahc_devclass, 0, 0);
62
63static int
64ahc_pci_probe(device_t dev)
65{
66 struct ahc_pci_identity *entry;
67
68 entry = ahc_find_pci_device(dev);
69 if (entry != NULL) {
70 device_set_desc(dev, entry->name);
71 return (0);
72 }
73 return (ENXIO);
74}
75
76static int
77ahc_pci_attach(device_t dev)
78{
79 struct ahc_pci_identity *entry;
80 struct ahc_softc *ahc;
81 char *name;
82 int error;
83
84 entry = ahc_find_pci_device(dev);
85 if (entry == NULL)
86 return (ENXIO);
87
88 /*
89 * Allocate a softc for this card and
90 * set it up for attachment by our
91 * common detect routine.
92 */
93 name = malloc(strlen(device_get_nameunit(dev)) + 1, M_DEVBUF, M_NOWAIT);
94 if (name == NULL)
95 return (ENOMEM);
96 strcpy(name, device_get_nameunit(dev));
97 ahc = ahc_alloc(dev, name);
98 if (ahc == NULL)
99 return (ENOMEM);
100
101 ahc_set_unit(ahc, device_get_unit(dev));
102
103 /* Allocate a dmatag for our SCB DMA maps */
104 /* XXX Should be a child of the PCI bus dma tag */
105 error = bus_dma_tag_create(/*parent*/NULL, /*alignment*/1,
106 /*boundary*/0,
107 /*lowaddr*/BUS_SPACE_MAXADDR_32BIT,
108 /*highaddr*/BUS_SPACE_MAXADDR,
109 /*filter*/NULL, /*filterarg*/NULL,
110 /*maxsize*/MAXBSIZE, /*nsegments*/AHC_NSEG,
111 /*maxsegsz*/AHC_MAXTRANSFER_SIZE,
112 /*flags*/BUS_DMA_ALLOCNOW,
113 &ahc->parent_dmat);
114
115 if (error != 0) {
116 printf("ahc_pci_attach: Could not allocate DMA tag "
117 "- error %d\n", error);
118 ahc_free(ahc);
119 return (ENOMEM);
120 }
121 ahc->dev_softc = dev;
122 error = ahc_pci_config(ahc, entry);
123 if (error != 0) {
124 ahc_free(ahc);
125 return (error);
126 }
127
128 ahc_attach(ahc);
129 return (0);
130}
131
132int
133ahc_pci_map_registers(struct ahc_softc *ahc)
134{
135 struct resource *regs;
136 u_int command;
137 int regs_type;
138 int regs_id;
139
140 command = ahc_pci_read_config(ahc->dev_softc, PCIR_COMMAND, /*bytes*/1);
141 regs = NULL;
142 regs_type = 0;
143 regs_id = 0;
144#ifdef AHC_ALLOW_MEMIO
145 if ((command & PCIM_CMD_MEMEN) != 0) {
146
147 regs_type = SYS_RES_MEMORY;
148 regs_id = AHC_PCI_MEMADDR;
149 regs = bus_alloc_resource(ahc->dev_softc, regs_type,
150 ®s_id, 0, ~0, 1, RF_ACTIVE);
151 if (regs != NULL) {
152 ahc->tag = rman_get_bustag(regs);
153 ahc->bsh = rman_get_bushandle(regs);
154
155 /*
156 * Do a quick test to see if memory mapped
157 * I/O is functioning correctly.
158 */
159 if (ahc_inb(ahc, HCNTRL) == 0xFF) {
160 device_printf(ahc->dev_softc,
161 "PCI Device %d:%d:%d failed memory "
162 "mapped test. Using PIO.\n",
163 ahc_get_pci_bus(ahc->dev_softc),
164 ahc_get_pci_slot(ahc->dev_softc),
165 ahc_get_pci_function(ahc->dev_softc));
166 bus_release_resource(ahc->dev_softc, regs_type,
167 regs_id, regs);
168 regs = NULL;
169 } else {
170 command &= ~PCIM_CMD_PORTEN;
171 ahc_pci_write_config(ahc->dev_softc,
172 PCIR_COMMAND,
173 command, /*bytes*/1);
174 }
175 }
176 }
177#endif
178 if (regs == NULL && (command & PCIM_CMD_PORTEN) != 0) {
179 regs_type = SYS_RES_IOPORT;
180 regs_id = AHC_PCI_IOADDR;
181 regs = bus_alloc_resource(ahc->dev_softc, regs_type,
182 ®s_id, 0, ~0, 1, RF_ACTIVE);
183 ahc->tag = rman_get_bustag(regs);
184 ahc->bsh = rman_get_bushandle(regs);
185 command &= ~PCIM_CMD_MEMEN;
186 ahc_pci_write_config(ahc->dev_softc,
187 PCIR_COMMAND,
188 command, /*bytes*/1);
189 }
190 ahc->platform_data->regs_res_type = regs_type;
191 ahc->platform_data->regs_res_id = regs_id;
192 ahc->platform_data->regs = regs;
193
194 if (regs == NULL) {
195 device_printf(ahc->dev_softc,
196 "can't allocate register resources\n");
197 return (ENOMEM);
198 }
199 return (0);
200}
201
202int
203ahc_pci_map_int(struct ahc_softc *ahc)
204{
205 int zero;
206
207 zero = 0;
208 ahc->platform_data->irq =
209 bus_alloc_resource(ahc->dev_softc, SYS_RES_IRQ, &zero,
210 0, ~0, 1, RF_ACTIVE | RF_SHAREABLE);
211 if (ahc->platform_data->irq == NULL)
212 return (ENOMEM);
213 ahc->platform_data->irq_res_type = SYS_RES_IRQ;
214 return (0);
215}
| 34 */
35
36#include <dev/aic7xxx/aic7xxx_freebsd.h>
37
38#define AHC_PCI_IOADDR PCIR_MAPS /* I/O Address */
39#define AHC_PCI_MEMADDR (PCIR_MAPS + 4) /* Mem I/O Address */
40
41static int ahc_pci_probe(device_t dev);
42static int ahc_pci_attach(device_t dev);
43
44static device_method_t ahc_pci_methods[] = {
45 /* Device interface */
46 DEVMETHOD(device_probe, ahc_pci_probe),
47 DEVMETHOD(device_attach, ahc_pci_attach),
48 DEVMETHOD(device_detach, ahc_detach),
49 { 0, 0 }
50};
51
52static driver_t ahc_pci_driver = {
53 "ahc",
54 ahc_pci_methods,
55 sizeof(struct ahc_softc)
56};
57
58static devclass_t ahc_devclass;
59
60DRIVER_MODULE(ahc, pci, ahc_pci_driver, ahc_devclass, 0, 0);
61DRIVER_MODULE(ahc, cardbus, ahc_pci_driver, ahc_devclass, 0, 0);
62
63static int
64ahc_pci_probe(device_t dev)
65{
66 struct ahc_pci_identity *entry;
67
68 entry = ahc_find_pci_device(dev);
69 if (entry != NULL) {
70 device_set_desc(dev, entry->name);
71 return (0);
72 }
73 return (ENXIO);
74}
75
76static int
77ahc_pci_attach(device_t dev)
78{
79 struct ahc_pci_identity *entry;
80 struct ahc_softc *ahc;
81 char *name;
82 int error;
83
84 entry = ahc_find_pci_device(dev);
85 if (entry == NULL)
86 return (ENXIO);
87
88 /*
89 * Allocate a softc for this card and
90 * set it up for attachment by our
91 * common detect routine.
92 */
93 name = malloc(strlen(device_get_nameunit(dev)) + 1, M_DEVBUF, M_NOWAIT);
94 if (name == NULL)
95 return (ENOMEM);
96 strcpy(name, device_get_nameunit(dev));
97 ahc = ahc_alloc(dev, name);
98 if (ahc == NULL)
99 return (ENOMEM);
100
101 ahc_set_unit(ahc, device_get_unit(dev));
102
103 /* Allocate a dmatag for our SCB DMA maps */
104 /* XXX Should be a child of the PCI bus dma tag */
105 error = bus_dma_tag_create(/*parent*/NULL, /*alignment*/1,
106 /*boundary*/0,
107 /*lowaddr*/BUS_SPACE_MAXADDR_32BIT,
108 /*highaddr*/BUS_SPACE_MAXADDR,
109 /*filter*/NULL, /*filterarg*/NULL,
110 /*maxsize*/MAXBSIZE, /*nsegments*/AHC_NSEG,
111 /*maxsegsz*/AHC_MAXTRANSFER_SIZE,
112 /*flags*/BUS_DMA_ALLOCNOW,
113 &ahc->parent_dmat);
114
115 if (error != 0) {
116 printf("ahc_pci_attach: Could not allocate DMA tag "
117 "- error %d\n", error);
118 ahc_free(ahc);
119 return (ENOMEM);
120 }
121 ahc->dev_softc = dev;
122 error = ahc_pci_config(ahc, entry);
123 if (error != 0) {
124 ahc_free(ahc);
125 return (error);
126 }
127
128 ahc_attach(ahc);
129 return (0);
130}
131
132int
133ahc_pci_map_registers(struct ahc_softc *ahc)
134{
135 struct resource *regs;
136 u_int command;
137 int regs_type;
138 int regs_id;
139
140 command = ahc_pci_read_config(ahc->dev_softc, PCIR_COMMAND, /*bytes*/1);
141 regs = NULL;
142 regs_type = 0;
143 regs_id = 0;
144#ifdef AHC_ALLOW_MEMIO
145 if ((command & PCIM_CMD_MEMEN) != 0) {
146
147 regs_type = SYS_RES_MEMORY;
148 regs_id = AHC_PCI_MEMADDR;
149 regs = bus_alloc_resource(ahc->dev_softc, regs_type,
150 ®s_id, 0, ~0, 1, RF_ACTIVE);
151 if (regs != NULL) {
152 ahc->tag = rman_get_bustag(regs);
153 ahc->bsh = rman_get_bushandle(regs);
154
155 /*
156 * Do a quick test to see if memory mapped
157 * I/O is functioning correctly.
158 */
159 if (ahc_inb(ahc, HCNTRL) == 0xFF) {
160 device_printf(ahc->dev_softc,
161 "PCI Device %d:%d:%d failed memory "
162 "mapped test. Using PIO.\n",
163 ahc_get_pci_bus(ahc->dev_softc),
164 ahc_get_pci_slot(ahc->dev_softc),
165 ahc_get_pci_function(ahc->dev_softc));
166 bus_release_resource(ahc->dev_softc, regs_type,
167 regs_id, regs);
168 regs = NULL;
169 } else {
170 command &= ~PCIM_CMD_PORTEN;
171 ahc_pci_write_config(ahc->dev_softc,
172 PCIR_COMMAND,
173 command, /*bytes*/1);
174 }
175 }
176 }
177#endif
178 if (regs == NULL && (command & PCIM_CMD_PORTEN) != 0) {
179 regs_type = SYS_RES_IOPORT;
180 regs_id = AHC_PCI_IOADDR;
181 regs = bus_alloc_resource(ahc->dev_softc, regs_type,
182 ®s_id, 0, ~0, 1, RF_ACTIVE);
183 ahc->tag = rman_get_bustag(regs);
184 ahc->bsh = rman_get_bushandle(regs);
185 command &= ~PCIM_CMD_MEMEN;
186 ahc_pci_write_config(ahc->dev_softc,
187 PCIR_COMMAND,
188 command, /*bytes*/1);
189 }
190 ahc->platform_data->regs_res_type = regs_type;
191 ahc->platform_data->regs_res_id = regs_id;
192 ahc->platform_data->regs = regs;
193
194 if (regs == NULL) {
195 device_printf(ahc->dev_softc,
196 "can't allocate register resources\n");
197 return (ENOMEM);
198 }
199 return (0);
200}
201
202int
203ahc_pci_map_int(struct ahc_softc *ahc)
204{
205 int zero;
206
207 zero = 0;
208 ahc->platform_data->irq =
209 bus_alloc_resource(ahc->dev_softc, SYS_RES_IRQ, &zero,
210 0, ~0, 1, RF_ACTIVE | RF_SHAREABLE);
211 if (ahc->platform_data->irq == NULL)
212 return (ENOMEM);
213 ahc->platform_data->irq_res_type = SYS_RES_IRQ;
214 return (0);
215}
|