1 /* $NetBSD: igsfb_pci.c,v 1.7 2003/05/10 01:51:56 uwe Exp $ */
2
3 /*
4 * Copyright (c) 2002, 2003 Valeriy E. Ushakov
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 * 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 * 3. The name of the author may not be used to endorse or promote products
16 * derived from this software without specific prior written permission
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
23 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 */
29
30 /*
31 * Integraphics Systems IGA 168x and CyberPro series.
32 */
33 #include <sys/cdefs.h>
34 __KERNEL_RCSID(0, "$NetBSD: igsfb_pci.c,v 1.7 2003/05/10 01:51:56 uwe Exp $");
35
36 #include <sys/param.h>
37 #include <sys/systm.h>
38 #include <sys/kernel.h>
39 #include <sys/device.h>
40 #include <sys/malloc.h>
41 #include <sys/buf.h>
42
43 #ifdef __sparc__ /* XXX: this doesn't belong here */
44 #include <machine/autoconf.h>
45 #endif
46 #include <machine/bus.h>
47 #include <machine/intr.h>
48
49 #include <dev/pci/pcivar.h>
50 #include <dev/pci/pcireg.h>
51 #include <dev/pci/pcidevs.h>
52
53 #include <dev/wscons/wsdisplayvar.h>
54 #include <dev/wscons/wsconsio.h>
55 #include <dev/rasops/rasops.h>
56
57 #include <dev/ic/igsfbreg.h>
58 #include <dev/ic/igsfbvar.h>
59 #include <dev/pci/igsfb_pcivar.h>
60
61
62 static int igsfb_pci_match_by_id(pcireg_t);
63 static int igsfb_pci_map_regs(struct igsfb_devconfig *,
64 bus_space_tag_t, bus_space_tag_t,
65 pci_chipset_tag_t,
66 pcitag_t, pci_product_id_t);
67 static int igsfb_pci_is_console(pci_chipset_tag_t, pcitag_t);
68
69 static int igsfb_pci_console = 0;
70 static pcitag_t igsfb_pci_constag;
71
72
73
74 static int igsfb_pci_match(struct device *, struct cfdata *, void *);
75 static void igsfb_pci_attach(struct device *, struct device *, void *);
76
77 CFATTACH_DECL(igsfb_pci, sizeof(struct igsfb_softc),
78 igsfb_pci_match, igsfb_pci_attach, NULL, NULL);
79
80
81 static int
82 igsfb_pci_match_by_id(id)
83 pcireg_t id;
84 {
85
86 if (PCI_VENDOR(id) != PCI_VENDOR_INTEGRAPHICS)
87 return (0);
88
89 switch (PCI_PRODUCT(id)) {
90 case PCI_PRODUCT_INTEGRAPHICS_IGA1682: /* FALLTHROUGH */
91 case PCI_PRODUCT_INTEGRAPHICS_CYBERPRO2000: /* FALLTHROUGH */
92 case PCI_PRODUCT_INTEGRAPHICS_CYBERPRO2010:
93 return (1);
94 default:
95 return (0);
96 }
97 }
98
99
100 int
101 igsfb_pci_cnattach(iot, memt, pc, bus, device, function)
102 bus_space_tag_t iot, memt;
103 pci_chipset_tag_t pc;
104 int bus, device, function;
105 {
106 struct igsfb_devconfig *dc;
107 pcitag_t tag;
108 pcireg_t id;
109 int ret;
110
111 tag = pci_make_tag(pc, bus, device, function);
112 id = pci_conf_read(pc, tag, PCI_ID_REG);
113
114 if (igsfb_pci_match_by_id(id) == 0)
115 return (1);
116
117 dc = &igsfb_console_dc;
118 if (igsfb_pci_map_regs(dc, iot, memt, pc, tag, PCI_PRODUCT(id)) != 0)
119 return (1);
120
121 ret = igsfb_enable(dc->dc_iot, dc->dc_iobase, dc->dc_ioflags);
122 if (ret)
123 return (ret);
124
125 ret = igsfb_cnattach_subr(dc);
126 if (ret)
127 return (ret);
128
129 igsfb_pci_console = 1;
130 igsfb_pci_constag = tag;
131
132 return (0);
133 }
134
135
136 static int
137 igsfb_pci_is_console(pc, tag)
138 pci_chipset_tag_t pc;
139 pcitag_t tag;
140 {
141
142 return (igsfb_pci_is_console && (tag == igsfb_pci_constag));
143 }
144
145
146 static int
147 igsfb_pci_match(parent, match, aux)
148 struct device *parent;
149 struct cfdata *match;
150 void *aux;
151 {
152 struct pci_attach_args *pa = aux;
153
154 return (igsfb_pci_match_by_id(pa->pa_id));
155 }
156
157
158 static void
159 igsfb_pci_attach(parent, self, aux)
160 struct device *parent, *self;
161 void *aux;
162 {
163 struct igsfb_softc *sc = (struct igsfb_softc *)self;
164 struct pci_attach_args *pa = aux;
165 int isconsole;
166 char devinfo[256];
167
168 pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo);
169 printf(": %s (rev. 0x%02x)\n", devinfo, PCI_REVISION(pa->pa_class));
170
171
172 #if defined(__sparc__) && !defined(KRUPS_FORCE_SERIAL_CONSOLE)
173 /* XXX: this doesn't belong here */
174 if (PCITAG_NODE(pa->pa_tag) == prom_instance_to_package(prom_stdout()))
175 {
176 int b, d, f;
177
178 pci_decompose_tag(pa->pa_pc, pa->pa_tag, &b, &d, &f);
179 igsfb_pci_cnattach(pa->pa_iot, pa->pa_memt, pa->pa_pc, b,d,f);
180 }
181 #endif
182
183 isconsole = 0;
184 if (igsfb_pci_is_console(pa->pa_pc, pa->pa_tag)) {
185 sc->sc_dc = &igsfb_console_dc;
186 isconsole = 1;
187 } else {
188 sc->sc_dc = malloc(sizeof(struct igsfb_devconfig),
189 M_DEVBUF, M_NOWAIT | M_ZERO);
190 if (sc->sc_dc == NULL)
191 panic("unable to allocate igsfb_devconfig");
192 if (igsfb_pci_map_regs(sc->sc_dc,
193 pa->pa_iot, pa->pa_memt, pa->pa_pc,
194 pa->pa_tag, PCI_PRODUCT(pa->pa_id)) != 0)
195 {
196 printf("unable to map device registers\n");
197 free(sc->sc_dc, M_DEVBUF);
198 sc->sc_dc = NULL;
199 return;
200 }
201
202 igsfb_enable(sc->sc_dc->dc_iot, sc->sc_dc->dc_iobase,
203 sc->sc_dc->dc_ioflags);
204 }
205
206 igsfb_attach_subr(sc, isconsole);
207 }
208
209
210 /*
211 * Init memory and i/o bus space tags. Map device registers.
212 * Use memory space mapped i/o space access for i/o registers
213 * for CyberPro cards.
214 */
215 static int
216 igsfb_pci_map_regs(dc, iot, memt, pc, tag, id)
217 struct igsfb_devconfig *dc;
218 bus_space_tag_t iot, memt;
219 pci_chipset_tag_t pc;
220 pcitag_t tag;
221 pci_product_id_t id;
222 {
223
224 dc->dc_id = id;
225
226 /*
227 * Configure memory space first since for CyberPro we use
228 * memory-mapped i/o access. Note that we are NOT mapping any
229 * of it yet. (XXX: search for memory BAR?)
230 */
231 #define IGS_MEM_MAPREG (PCI_MAPREG_START + 0)
232
233 dc->dc_memt = memt;
234 if (pci_mapreg_info(pc, tag,
235 IGS_MEM_MAPREG, PCI_MAPREG_TYPE_MEM,
236 &dc->dc_memaddr, &dc->dc_memsz, &dc->dc_memflags) != 0)
237 {
238 printf("unable to configure memory space\n");
239 return (1);
240 }
241
242 /*
243 * Configure I/O space. On CyberPro use MMIO. IGS 168x doesn't
244 * have a BAR for its i/o space, so we have to hardcode it.
245 */
246 if (id >= PCI_PRODUCT_INTEGRAPHICS_CYBERPRO2000) {
247 dc->dc_iot = dc->dc_memt;
248 dc->dc_iobase = dc->dc_memaddr | IGS_MEM_MMIO_SELECT;
249 dc->dc_ioflags = dc->dc_memflags;
250 } else {
251 dc->dc_iot = iot;
252 dc->dc_iobase = 0;
253 dc->dc_ioflags = 0;
254 }
255
256 /*
257 * Map I/O registers. This is done in bus glue, not in common
258 * code because on e.g. ISA bus we'd need to access registers
259 * to obtain/program linear memory location.
260 */
261 if (bus_space_map(dc->dc_iot,
262 dc->dc_iobase + IGS_REG_BASE, IGS_REG_SIZE,
263 dc->dc_ioflags,
264 &dc->dc_ioh) != 0)
265 {
266 printf("unable to map I/O registers\n");
267 return (1);
268 }
269
270 return (0);
271 }
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