bus_alloc_resource -> bus_alloc_resource_any
[dragonfly.git] / sys / dev / disk / aic7xxx / ahd_pci.c
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: //depot/aic7xxx/freebsd/dev/aic7xxx/ahd_pci.c#17 $
32  *
33  * $FreeBSD: src/sys/dev/aic7xxx/ahd_pci.c,v 1.16 2004/03/17 17:50:25 njl Exp $
34  * $DragonFly: src/sys/dev/disk/aic7xxx/ahd_pci.c,v 1.10 2007/07/06 01:11:07 pavalos Exp $
35  */
36
37 #include "aic79xx_osm.h"
38
39 static int ahd_pci_probe(device_t dev);
40 static int ahd_pci_attach(device_t dev);
41
42 static device_method_t ahd_pci_device_methods[] = {
43         /* Device interface */
44         DEVMETHOD(device_probe,         ahd_pci_probe),
45         DEVMETHOD(device_attach,        ahd_pci_attach),
46         DEVMETHOD(device_detach,        ahd_detach),
47         { 0, 0 }
48 };
49
50 static driver_t ahd_pci_driver = {
51         "ahd",
52         ahd_pci_device_methods,
53         sizeof(struct ahd_softc)
54 };
55
56 static devclass_t ahd_devclass;
57
58 DRIVER_MODULE(ahd, pci, ahd_pci_driver, ahd_devclass, 0, 0);
59 DRIVER_MODULE(ahd, cardbus, ahd_pci_driver, ahd_devclass, 0, 0);
60 MODULE_DEPEND(ahd_pci, ahd, 1, 1, 1);
61 MODULE_VERSION(ahd_pci, 1);
62
63 static int
64 ahd_pci_probe(device_t dev)
65 {
66         struct  ahd_pci_identity *entry;
67
68         entry = ahd_find_pci_device(dev);
69         if (entry != NULL) {
70                 device_set_desc(dev, entry->name);
71                 return (0);
72         }
73         return (ENXIO);
74 }
75
76 static int
77 ahd_pci_attach(device_t dev)
78 {
79         struct   ahd_pci_identity *entry;
80         struct   ahd_softc *ahd;
81         char    *name;
82         int      error;
83
84         entry = ahd_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 = kmalloc(strlen(device_get_nameunit(dev)) + 1, M_DEVBUF, M_WAITOK);
94         strcpy(name, device_get_nameunit(dev));
95         ahd = ahd_alloc(dev, name);
96         if (ahd == NULL)
97                 return (ENOMEM);
98
99         ahd_set_unit(ahd, device_get_unit(dev));
100
101         /*
102          * Should we bother disabling 39Bit addressing
103          * based on installed memory?
104          */
105         if (sizeof(bus_addr_t) > 4)
106                 ahd->flags |= AHD_39BIT_ADDRESSING;
107
108         /* Allocate a dmatag for our SCB DMA maps */
109         /* XXX Should be a child of the PCI bus dma tag */
110         error = aic_dma_tag_create(ahd, /*parent*/NULL, /*alignment*/1,
111                                    /*boundary*/0,
112                                    (ahd->flags & AHD_39BIT_ADDRESSING)
113                                    ? 0x7FFFFFFFFFULL
114                                    : BUS_SPACE_MAXADDR_32BIT,
115                                    /*highaddr*/BUS_SPACE_MAXADDR,
116                                    /*filter*/NULL, /*filterarg*/NULL,
117                                    /*maxsize*/BUS_SPACE_MAXSIZE_32BIT,
118                                    /*nsegments*/AHD_NSEG,
119                                    /*maxsegsz*/AHD_MAXTRANSFER_SIZE,
120                                    /*flags*/0,
121                                    &ahd->parent_dmat);
122
123         if (error != 0) {
124                 kprintf("ahd_pci_attach: Could not allocate DMA tag "
125                        "- error %d\n", error);
126                 ahd_free(ahd);
127                 return (ENOMEM);
128         }
129         ahd->dev_softc = dev;
130         error = ahd_pci_config(ahd, entry);
131         if (error != 0) {
132                 ahd_free(ahd);
133                 return (error);
134         }
135
136         ahd_attach(ahd);
137         return (0);
138 }
139
140 int
141 ahd_pci_map_registers(struct ahd_softc *ahd)
142 {
143         struct  resource *regs;
144         struct  resource *regs2;
145         u_int   command;
146         int     regs_type;
147         int     regs_id;
148         int     regs_id2;
149         int     allow_memio;
150
151         command = aic_pci_read_config(ahd->dev_softc, PCIR_COMMAND, /*bytes*/1);
152         regs = NULL;
153         regs2 = NULL;
154         regs_type = 0;
155         regs_id = 0;
156
157         /* Retrieve the per-device 'allow_memio' hint */
158         if (resource_int_value(device_get_name(ahd->dev_softc),
159                                device_get_unit(ahd->dev_softc),
160                                "allow_memio", &allow_memio) != 0) {
161                 if (bootverbose)
162                         device_printf(ahd->dev_softc,
163                                       "Defaulting to MEMIO on\n");
164         }
165
166         if ((command & PCIM_CMD_MEMEN) != 0
167          && (ahd->bugs & AHD_PCIX_MMAPIO_BUG) == 0
168          && allow_memio != 0) {
169
170                 regs_type = SYS_RES_MEMORY;
171                 regs_id = AHD_PCI_MEMADDR;
172                 regs = bus_alloc_resource_any(ahd->dev_softc, regs_type,
173                                               &regs_id, RF_ACTIVE);
174                 if (regs != NULL) {
175                         int error;
176
177                         ahd->tags[0] = rman_get_bustag(regs);
178                         ahd->bshs[0] = rman_get_bushandle(regs);
179                         ahd->tags[1] = ahd->tags[0];
180                         error = bus_space_subregion(ahd->tags[0], ahd->bshs[0],
181                                                     /*offset*/0x100,
182                                                     /*size*/0x100,
183                                                     &ahd->bshs[1]);
184                         /*
185                          * Do a quick test to see if memory mapped
186                          * I/O is functioning correctly.
187                          */
188                         if (error != 0
189                          || ahd_pci_test_register_access(ahd) != 0) {
190                                 device_printf(ahd->dev_softc,
191                                        "PCI Device %d:%d:%d failed memory "
192                                        "mapped test.  Using PIO.\n",
193                                        aic_get_pci_bus(ahd->dev_softc),
194                                        aic_get_pci_slot(ahd->dev_softc),
195                                        aic_get_pci_function(ahd->dev_softc));
196                                 bus_release_resource(ahd->dev_softc, regs_type,
197                                                      regs_id, regs);
198                                 regs = NULL;
199                         } else {
200                                 command &= ~PCIM_CMD_PORTEN;
201                                 aic_pci_write_config(ahd->dev_softc,
202                                                      PCIR_COMMAND,
203                                                      command, /*bytes*/1);
204                         }
205                 }
206         }
207         if (regs == NULL && (command & PCIM_CMD_PORTEN) != 0) {
208                 regs_type = SYS_RES_IOPORT;
209                 regs_id = AHD_PCI_IOADDR0;
210                 regs = bus_alloc_resource_any(ahd->dev_softc, regs_type,
211                                               &regs_id, RF_ACTIVE);
212                 if (regs == NULL) {
213                         device_printf(ahd->dev_softc,
214                                       "can't allocate register resources\n");
215                         return (ENOMEM);
216                 }
217                 ahd->tags[0] = rman_get_bustag(regs);
218                 ahd->bshs[0] = rman_get_bushandle(regs);
219
220                 /* And now the second BAR */
221                 regs_id2 = AHD_PCI_IOADDR1;
222                 regs2 = bus_alloc_resource_any(ahd->dev_softc, regs_type,
223                                                &regs_id2, RF_ACTIVE);
224                 if (regs2 == NULL) {
225                         device_printf(ahd->dev_softc,
226                                       "can't allocate register resources\n");
227                         return (ENOMEM);
228                 }
229                 ahd->tags[1] = rman_get_bustag(regs2);
230                 ahd->bshs[1] = rman_get_bushandle(regs2);
231                 command &= ~PCIM_CMD_MEMEN;
232                 aic_pci_write_config(ahd->dev_softc, PCIR_COMMAND,
233                                      command, /*bytes*/1);
234                 ahd->platform_data->regs_res_type[1] = regs_type;
235                 ahd->platform_data->regs_res_id[1] = regs_id2;
236                 ahd->platform_data->regs[1] = regs2;
237         }
238         ahd->platform_data->regs_res_type[0] = regs_type;
239         ahd->platform_data->regs_res_id[0] = regs_id;
240         ahd->platform_data->regs[0] = regs;
241         return (0);
242 }
243
244 int
245 ahd_pci_map_int(struct ahd_softc *ahd)
246 {
247         int zero;
248
249         zero = 0;
250         ahd->platform_data->irq =
251             bus_alloc_resource_any(ahd->dev_softc, SYS_RES_IRQ, &zero,
252                                    RF_ACTIVE | RF_SHAREABLE);
253         if (ahd->platform_data->irq == NULL)
254                 return (ENOMEM);
255         ahd->platform_data->irq_res_type = SYS_RES_IRQ;
256         return (ahd_map_int(ahd));
257 }