necpb.c revision 1.29.40.1 1 1.29.40.1 mjf /* $NetBSD: necpb.c,v 1.29.40.1 2008/04/03 12:42:11 mjf Exp $ */
2 1.1 soda
3 1.1 soda /*-
4 1.1 soda * Copyright (c) 1997, 1998 The NetBSD Foundation, Inc.
5 1.1 soda * All rights reserved.
6 1.1 soda *
7 1.1 soda * This code is derived from software contributed to The NetBSD Foundation
8 1.1 soda * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
9 1.1 soda * NASA Ames Research Center.
10 1.1 soda *
11 1.1 soda * Redistribution and use in source and binary forms, with or without
12 1.1 soda * modification, are permitted provided that the following conditions
13 1.1 soda * are met:
14 1.1 soda * 1. Redistributions of source code must retain the above copyright
15 1.1 soda * notice, this list of conditions and the following disclaimer.
16 1.1 soda * 2. Redistributions in binary form must reproduce the above copyright
17 1.1 soda * notice, this list of conditions and the following disclaimer in the
18 1.1 soda * documentation and/or other materials provided with the distribution.
19 1.1 soda * 3. All advertising materials mentioning features or use of this software
20 1.1 soda * must display the following acknowledgement:
21 1.1 soda * This product includes software developed by the NetBSD
22 1.1 soda * Foundation, Inc. and its contributors.
23 1.1 soda * 4. Neither the name of The NetBSD Foundation nor the names of its
24 1.1 soda * contributors may be used to endorse or promote products derived
25 1.1 soda * from this software without specific prior written permission.
26 1.1 soda *
27 1.1 soda * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
28 1.1 soda * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
29 1.1 soda * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
30 1.1 soda * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
31 1.1 soda * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
32 1.1 soda * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
33 1.1 soda * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
34 1.1 soda * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
35 1.1 soda * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
36 1.1 soda * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
37 1.1 soda * POSSIBILITY OF SUCH DAMAGE.
38 1.1 soda */
39 1.1 soda
40 1.1 soda /*
41 1.1 soda * Copyright (c) 1996 Christopher G. Demetriou. All rights reserved.
42 1.1 soda * Copyright (c) 1994 Charles M. Hannum. All rights reserved.
43 1.1 soda *
44 1.1 soda * Redistribution and use in source and binary forms, with or without
45 1.1 soda * modification, are permitted provided that the following conditions
46 1.1 soda * are met:
47 1.1 soda * 1. Redistributions of source code must retain the above copyright
48 1.1 soda * notice, this list of conditions and the following disclaimer.
49 1.1 soda * 2. Redistributions in binary form must reproduce the above copyright
50 1.1 soda * notice, this list of conditions and the following disclaimer in the
51 1.1 soda * documentation and/or other materials provided with the distribution.
52 1.1 soda * 3. All advertising materials mentioning features or use of this software
53 1.1 soda * must display the following acknowledgement:
54 1.1 soda * This product includes software developed by Charles M. Hannum.
55 1.1 soda * 4. The name of the author may not be used to endorse or promote products
56 1.1 soda * derived from this software without specific prior written permission.
57 1.1 soda *
58 1.1 soda * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
59 1.1 soda * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
60 1.1 soda * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
61 1.1 soda * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
62 1.1 soda * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
63 1.1 soda * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
64 1.1 soda * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
65 1.1 soda * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
66 1.1 soda * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
67 1.1 soda * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
68 1.1 soda */
69 1.16 lukem
70 1.16 lukem #include <sys/cdefs.h>
71 1.29.40.1 mjf __KERNEL_RCSID(0, "$NetBSD: necpb.c,v 1.29.40.1 2008/04/03 12:42:11 mjf Exp $");
72 1.25 tsutsui
73 1.25 tsutsui #include "opt_pci.h"
74 1.1 soda
75 1.1 soda #include <sys/types.h>
76 1.1 soda #include <sys/param.h>
77 1.1 soda #include <sys/time.h>
78 1.1 soda #include <sys/systm.h>
79 1.1 soda #include <sys/errno.h>
80 1.1 soda #include <sys/device.h>
81 1.1 soda #include <sys/malloc.h>
82 1.1 soda #include <sys/extent.h>
83 1.3 mrg
84 1.3 mrg #include <uvm/uvm_extern.h>
85 1.1 soda
86 1.1 soda #define _ARC_BUS_DMA_PRIVATE
87 1.1 soda #include <machine/bus.h>
88 1.1 soda
89 1.1 soda #include <machine/pio.h>
90 1.1 soda
91 1.1 soda #include <machine/autoconf.h>
92 1.1 soda #include <machine/cpu.h>
93 1.8 soda #include <machine/platform.h>
94 1.1 soda
95 1.26 tsutsui #include <mips/cache.h>
96 1.26 tsutsui
97 1.1 soda #include <dev/pci/pcivar.h>
98 1.1 soda #include <dev/pci/pcireg.h>
99 1.27 tsutsui #include <dev/pci/pcidevs.h>
100 1.25 tsutsui #ifdef PCI_NETBSD_CONFIGURE
101 1.25 tsutsui #include <dev/pci/pciconf.h>
102 1.25 tsutsui #endif
103 1.1 soda
104 1.6 ur #include <arc/jazz/rd94.h>
105 1.1 soda #include <arc/pci/necpbvar.h>
106 1.1 soda
107 1.22 tsutsui #include "ioconf.h"
108 1.22 tsutsui
109 1.19 tsutsui int necpbmatch(struct device *, struct cfdata *, void *);
110 1.19 tsutsui void necpbattach(struct device *, struct device *, void *);
111 1.1 soda
112 1.19 tsutsui void necpb_attach_hook(struct device *, struct device *,
113 1.19 tsutsui struct pcibus_attach_args *);
114 1.19 tsutsui int necpb_bus_maxdevs(pci_chipset_tag_t, int);
115 1.19 tsutsui pcitag_t necpb_make_tag(pci_chipset_tag_t, int, int, int);
116 1.19 tsutsui void necpb_decompose_tag(pci_chipset_tag_t, pcitag_t, int *,
117 1.19 tsutsui int *, int *);
118 1.19 tsutsui pcireg_t necpb_conf_read(pci_chipset_tag_t, pcitag_t, int);
119 1.19 tsutsui void necpb_conf_write(pci_chipset_tag_t, pcitag_t, int, pcireg_t);
120 1.19 tsutsui int necpb_intr_map(struct pci_attach_args *, pci_intr_handle_t *);
121 1.19 tsutsui const char * necpb_intr_string(pci_chipset_tag_t, pci_intr_handle_t);
122 1.19 tsutsui void * necpb_intr_establish(pci_chipset_tag_t, pci_intr_handle_t,
123 1.19 tsutsui int, int (*func)(void *), void *);
124 1.19 tsutsui void necpb_intr_disestablish(pci_chipset_tag_t, void *);
125 1.25 tsutsui #ifdef PCI_NETBSD_CONFIGURE
126 1.25 tsutsui void necpb_conf_interrupt(pci_chipset_tag_t, int, int, int, int,
127 1.25 tsutsui int *);
128 1.25 tsutsui int necpb_conf_hook(pci_chipset_tag_t, int, int, int, pcireg_t);
129 1.25 tsutsui #endif
130 1.1 soda
131 1.20 tsutsui uint32_t necpb_intr(uint32_t, struct clockframe *);
132 1.1 soda
133 1.1 soda
134 1.13 thorpej CFATTACH_DECL(necpb, sizeof(struct necpb_softc),
135 1.13 thorpej necpbmatch, necpbattach, NULL, NULL);
136 1.1 soda
137 1.1 soda static struct necpb_intrhand *necpb_inttbl[4];
138 1.1 soda
139 1.2 soda /* There can be only one. */
140 1.2 soda int necpbfound;
141 1.8 soda struct necpb_context necpb_main_context;
142 1.2 soda static long necpb_mem_ex_storage[EXTENT_FIXED_STORAGE_SIZE(10) / sizeof(long)];
143 1.2 soda static long necpb_io_ex_storage[EXTENT_FIXED_STORAGE_SIZE(10) / sizeof(long)];
144 1.2 soda
145 1.1 soda int
146 1.19 tsutsui necpbmatch(struct device *parent, struct cfdata *match, void *aux)
147 1.1 soda {
148 1.1 soda struct confargs *ca = aux;
149 1.1 soda
150 1.1 soda if (strcmp(ca->ca_name, necpb_cd.cd_name) != 0)
151 1.19 tsutsui return 0;
152 1.1 soda
153 1.2 soda if (necpbfound)
154 1.19 tsutsui return 0;
155 1.2 soda
156 1.19 tsutsui return 1;
157 1.1 soda }
158 1.1 soda
159 1.2 soda /*
160 1.2 soda * Set up the chipset's function pointers.
161 1.2 soda */
162 1.2 soda void
163 1.19 tsutsui necpb_init(struct necpb_context *ncp)
164 1.2 soda {
165 1.23 tsutsui pci_chipset_tag_t pc;
166 1.25 tsutsui #ifndef PCI_NETBSD_CONFIGURE
167 1.2 soda pcitag_t tag;
168 1.27 tsutsui pcireg_t id, class, csr;
169 1.27 tsutsui u_int dev;
170 1.25 tsutsui #endif
171 1.2 soda
172 1.2 soda if (ncp->nc_initialized)
173 1.2 soda return;
174 1.2 soda
175 1.2 soda arc_large_bus_space_init(&ncp->nc_memt, "necpcimem",
176 1.2 soda RD94_P_PCI_MEM, 0, RD94_S_PCI_MEM);
177 1.29 christos arc_bus_space_init_extent(&ncp->nc_memt, (void *)necpb_mem_ex_storage,
178 1.2 soda sizeof(necpb_mem_ex_storage));
179 1.2 soda
180 1.2 soda arc_bus_space_init(&ncp->nc_iot, "necpciio",
181 1.2 soda RD94_P_PCI_IO, RD94_V_PCI_IO, 0, RD94_S_PCI_IO);
182 1.29 christos arc_bus_space_init_extent(&ncp->nc_iot, (void *)necpb_io_ex_storage,
183 1.2 soda sizeof(necpb_io_ex_storage));
184 1.2 soda
185 1.2 soda jazz_bus_dma_tag_init(&ncp->nc_dmat);
186 1.2 soda
187 1.23 tsutsui pc = &ncp->nc_pc;
188 1.23 tsutsui pc->pc_attach_hook = necpb_attach_hook;
189 1.23 tsutsui pc->pc_bus_maxdevs = necpb_bus_maxdevs;
190 1.23 tsutsui pc->pc_make_tag = necpb_make_tag;
191 1.23 tsutsui pc->pc_decompose_tag = necpb_decompose_tag;
192 1.23 tsutsui pc->pc_conf_read = necpb_conf_read;
193 1.23 tsutsui pc->pc_conf_write = necpb_conf_write;
194 1.23 tsutsui pc->pc_intr_map = necpb_intr_map;
195 1.23 tsutsui pc->pc_intr_string = necpb_intr_string;
196 1.23 tsutsui pc->pc_intr_establish = necpb_intr_establish;
197 1.23 tsutsui pc->pc_intr_disestablish = necpb_intr_disestablish;
198 1.25 tsutsui #ifdef PCI_NETBSD_CONFIGURE
199 1.25 tsutsui pc->pc_conf_interrupt = necpb_conf_interrupt;
200 1.25 tsutsui pc->pc_conf_hook = necpb_conf_hook;
201 1.25 tsutsui #endif
202 1.2 soda
203 1.25 tsutsui #ifndef PCI_NETBSD_CONFIGURE
204 1.9 ur /*
205 1.9 ur * XXX:
206 1.9 ur * NEC's firmware does not configure PCI devices completely.
207 1.9 ur * We need to disable expansion ROM and enable mem/io/busmaster
208 1.9 ur * bits here.
209 1.9 ur */
210 1.27 tsutsui for (dev = 3; dev <= 5; dev++) {
211 1.27 tsutsui tag = necpb_make_tag(pc, 0, dev, 0);
212 1.27 tsutsui id = necpb_conf_read(pc, tag, PCI_ID_REG);
213 1.27 tsutsui
214 1.27 tsutsui if (PCI_VENDOR(id) == PCI_VENDOR_INVALID)
215 1.27 tsutsui continue;
216 1.27 tsutsui
217 1.27 tsutsui class = necpb_conf_read(pc, tag, PCI_CLASS_REG);
218 1.27 tsutsui csr = necpb_conf_read(pc, tag, PCI_COMMAND_STATUS_REG);
219 1.27 tsutsui if (PCI_CLASS(class) != PCI_CLASS_BRIDGE ||
220 1.27 tsutsui PCI_SUBCLASS(class) != PCI_SUBCLASS_BRIDGE_PCI) {
221 1.27 tsutsui csr |= PCI_COMMAND_IO_ENABLE | PCI_COMMAND_MEM_ENABLE;
222 1.27 tsutsui necpb_conf_write(pc, tag, PCI_MAPREG_ROM, 0);
223 1.27 tsutsui }
224 1.27 tsutsui csr |= PCI_COMMAND_MASTER_ENABLE;
225 1.27 tsutsui necpb_conf_write(pc, tag, PCI_COMMAND_STATUS_REG, csr);
226 1.27 tsutsui }
227 1.25 tsutsui #endif
228 1.2 soda
229 1.2 soda ncp->nc_initialized = 1;
230 1.2 soda }
231 1.2 soda
232 1.1 soda void
233 1.19 tsutsui necpbattach(struct device *parent, struct device *self, void *aux)
234 1.1 soda {
235 1.1 soda struct necpb_softc *sc = (struct necpb_softc *)self;
236 1.1 soda struct pcibus_attach_args pba;
237 1.23 tsutsui pci_chipset_tag_t pc;
238 1.1 soda int i;
239 1.1 soda
240 1.2 soda necpbfound = 1;
241 1.2 soda
242 1.1 soda printf("\n");
243 1.1 soda
244 1.8 soda sc->sc_ncp = &necpb_main_context;
245 1.2 soda necpb_init(sc->sc_ncp);
246 1.1 soda
247 1.23 tsutsui pc = &sc->sc_ncp->nc_pc;
248 1.25 tsutsui #ifdef PCI_NETBSD_CONFIGURE
249 1.25 tsutsui pc->pc_ioext = extent_create("necpbio", 0x00100000, 0x01ffffff,
250 1.25 tsutsui M_DEVBUF, NULL, 0, EX_NOWAIT);
251 1.25 tsutsui pc->pc_memext = extent_create("necpbmem", 0x08000000, 0x3fffffff,
252 1.25 tsutsui M_DEVBUF, NULL, 0, EX_NOWAIT);
253 1.26 tsutsui pci_configure_bus(pc, pc->pc_ioext, pc->pc_memext, NULL, 0,
254 1.26 tsutsui mips_dcache_align);
255 1.25 tsutsui #endif
256 1.23 tsutsui
257 1.1 soda out32(RD94_SYS_PCI_INTMASK, 0xf);
258 1.1 soda
259 1.1 soda for (i = 0; i < 4; i++)
260 1.1 soda necpb_inttbl[i] = NULL;
261 1.1 soda
262 1.28 tsutsui (*platform->set_intr)(MIPS_INT_MASK_2, necpb_intr, ARC_INTPRI_PCIISA);
263 1.1 soda
264 1.2 soda pba.pba_iot = &sc->sc_ncp->nc_iot;
265 1.2 soda pba.pba_memt = &sc->sc_ncp->nc_memt;
266 1.2 soda pba.pba_dmat = &sc->sc_ncp->nc_dmat;
267 1.15 fvdl pba.pba_dmat64 = NULL;
268 1.23 tsutsui pba.pba_pc = pc;
269 1.1 soda pba.pba_flags = PCI_FLAGS_IO_ENABLED | PCI_FLAGS_MEM_ENABLED;
270 1.1 soda pba.pba_bus = 0;
271 1.11 thorpej pba.pba_bridgetag = NULL;
272 1.1 soda
273 1.18 drochner config_found_ia(self, "pcibus", &pba, pcibusprint);
274 1.1 soda }
275 1.1 soda
276 1.1 soda void
277 1.19 tsutsui necpb_attach_hook(struct device *parent, struct device *self,
278 1.19 tsutsui struct pcibus_attach_args *pba)
279 1.1 soda {
280 1.1 soda }
281 1.1 soda
282 1.1 soda int
283 1.19 tsutsui necpb_bus_maxdevs(pci_chipset_tag_t pc, int busno)
284 1.1 soda {
285 1.19 tsutsui
286 1.19 tsutsui return 32;
287 1.1 soda }
288 1.1 soda
289 1.1 soda pcitag_t
290 1.19 tsutsui necpb_make_tag(pci_chipset_tag_t pc, int bus, int device, int function)
291 1.1 soda {
292 1.1 soda pcitag_t tag;
293 1.1 soda
294 1.1 soda if (bus >= 256 || device >= 32 || function >= 8)
295 1.1 soda panic("necpb_make_tag: bad request");
296 1.1 soda
297 1.1 soda tag = 0x80000000 | (bus << 16) | (device << 11) | (function << 8);
298 1.19 tsutsui return tag;
299 1.1 soda }
300 1.1 soda
301 1.1 soda void
302 1.19 tsutsui necpb_decompose_tag(pci_chipset_tag_t pc, pcitag_t tag, int *bp, int *dp,
303 1.19 tsutsui int *fp)
304 1.1 soda {
305 1.19 tsutsui
306 1.1 soda if (bp != NULL)
307 1.1 soda *bp = (tag >> 16) & 0xff;
308 1.1 soda if (dp != NULL)
309 1.1 soda *dp = (tag >> 11) & 0x1f;
310 1.1 soda if (fp != NULL)
311 1.1 soda *fp = (tag >> 8) & 0x07;
312 1.1 soda }
313 1.1 soda
314 1.1 soda pcireg_t
315 1.19 tsutsui necpb_conf_read(pci_chipset_tag_t pc, pcitag_t tag, int reg)
316 1.1 soda {
317 1.1 soda pcireg_t data;
318 1.1 soda int s;
319 1.1 soda
320 1.1 soda s = splhigh();
321 1.1 soda out32(RD94_SYS_PCI_CONFADDR, tag | reg);
322 1.1 soda data = in32(RD94_SYS_PCI_CONFDATA);
323 1.1 soda out32(RD94_SYS_PCI_CONFADDR, 0);
324 1.1 soda splx(s);
325 1.1 soda
326 1.19 tsutsui return data;
327 1.1 soda }
328 1.1 soda
329 1.1 soda void
330 1.19 tsutsui necpb_conf_write(pci_chipset_tag_t pc, pcitag_t tag, int reg, pcireg_t data)
331 1.1 soda {
332 1.1 soda int s;
333 1.1 soda
334 1.1 soda s = splhigh();
335 1.1 soda out32(RD94_SYS_PCI_CONFADDR, tag | reg);
336 1.1 soda out32(RD94_SYS_PCI_CONFDATA, data);
337 1.1 soda out32(RD94_SYS_PCI_CONFADDR, 0);
338 1.1 soda splx(s);
339 1.1 soda }
340 1.1 soda
341 1.1 soda int
342 1.19 tsutsui necpb_intr_map(struct pci_attach_args *pa, pci_intr_handle_t *ihp)
343 1.1 soda {
344 1.7 ur pci_chipset_tag_t pc = pa->pa_pc;
345 1.7 ur pcitag_t intrtag = pa->pa_intrtag;
346 1.7 ur int pin = pa->pa_intrpin;
347 1.25 tsutsui int swiz = pa->pa_intrswiz % 4;
348 1.1 soda int bus, dev;
349 1.1 soda
350 1.1 soda if (pin == 0) {
351 1.1 soda /* No IRQ used. */
352 1.1 soda *ihp = -1;
353 1.19 tsutsui return 1;
354 1.1 soda }
355 1.1 soda
356 1.1 soda if (pin > 4) {
357 1.1 soda printf("necpb_intr_map: bad interrupt pin %d\n", pin);
358 1.1 soda *ihp = -1;
359 1.19 tsutsui return 1;
360 1.1 soda }
361 1.1 soda
362 1.1 soda necpb_decompose_tag(pc, intrtag, &bus, &dev, NULL);
363 1.1 soda if (bus != 0) {
364 1.25 tsutsui printf("necpb_intr_map: unknown bus %d\n", bus);
365 1.1 soda *ihp = -1;
366 1.19 tsutsui return 1;
367 1.1 soda }
368 1.1 soda
369 1.1 soda switch (dev) {
370 1.1 soda case 3:
371 1.25 tsutsui *ihp = (pin - swiz + 2) % 4;
372 1.1 soda break;
373 1.1 soda case 4:
374 1.25 tsutsui *ihp = (pin - swiz + 1) % 4;
375 1.1 soda break;
376 1.1 soda case 5:
377 1.25 tsutsui *ihp = (pin - swiz + 0) % 4;
378 1.1 soda break;
379 1.1 soda default:
380 1.1 soda *ihp = -1;
381 1.19 tsutsui return 1;
382 1.1 soda }
383 1.1 soda
384 1.19 tsutsui return 0;
385 1.1 soda }
386 1.1 soda
387 1.1 soda const char *
388 1.19 tsutsui necpb_intr_string(pci_chipset_tag_t pc, pci_intr_handle_t ih)
389 1.1 soda {
390 1.1 soda static char str[8];
391 1.1 soda
392 1.1 soda if (ih >= 4)
393 1.5 thorpej panic("necpb_intr_string: bogus handle %ld", ih);
394 1.1 soda sprintf(str, "int %c", 'A' + (int)ih);
395 1.19 tsutsui return str;
396 1.1 soda }
397 1.1 soda
398 1.1 soda void *
399 1.19 tsutsui necpb_intr_establish(pci_chipset_tag_t pc, pci_intr_handle_t ih, int level,
400 1.19 tsutsui int (*func)(void *), void *arg)
401 1.1 soda {
402 1.1 soda struct necpb_intrhand *n, *p;
403 1.23 tsutsui uint32_t mask;
404 1.1 soda
405 1.1 soda if (ih >= 4)
406 1.1 soda panic("necpb_intr_establish: bogus handle");
407 1.1 soda
408 1.1 soda n = malloc(sizeof(struct necpb_intrhand), M_DEVBUF, M_NOWAIT);
409 1.1 soda if (n == NULL)
410 1.1 soda panic("necpb_intr_establish: can't malloc interrupt handle");
411 1.1 soda
412 1.1 soda n->ih_func = func;
413 1.1 soda n->ih_arg = arg;
414 1.1 soda n->ih_next = NULL;
415 1.1 soda n->ih_intn = ih;
416 1.17 tsutsui strlcpy(n->ih_evname, necpb_intr_string(pc, ih), sizeof(n->ih_evname));
417 1.17 tsutsui evcnt_attach_dynamic(&n->ih_evcnt, EVCNT_TYPE_INTR, NULL, "necpb",
418 1.17 tsutsui n->ih_evname);
419 1.1 soda
420 1.1 soda if (necpb_inttbl[ih] == NULL) {
421 1.1 soda necpb_inttbl[ih] = n;
422 1.1 soda mask = in32(RD94_SYS_PCI_INTMASK);
423 1.1 soda mask |= 1 << ih;
424 1.1 soda out32(RD94_SYS_PCI_INTMASK, mask);
425 1.1 soda } else {
426 1.1 soda p = necpb_inttbl[ih];
427 1.1 soda while (p->ih_next != NULL)
428 1.1 soda p = p->ih_next;
429 1.1 soda p->ih_next = n;
430 1.1 soda }
431 1.1 soda
432 1.1 soda return n;
433 1.1 soda }
434 1.1 soda
435 1.1 soda void
436 1.19 tsutsui necpb_intr_disestablish(pci_chipset_tag_t pc, void *cookie)
437 1.1 soda {
438 1.1 soda struct necpb_intrhand *n, *p, *q;
439 1.23 tsutsui uint32_t mask;
440 1.1 soda
441 1.1 soda n = cookie;
442 1.1 soda
443 1.1 soda q = NULL;
444 1.1 soda p = necpb_inttbl[n->ih_intn];
445 1.1 soda while (p != n) {
446 1.1 soda if (p == NULL)
447 1.1 soda panic("necpb_intr_disestablish: broken intr table");
448 1.1 soda q = p;
449 1.1 soda p = p->ih_next;
450 1.1 soda }
451 1.1 soda
452 1.1 soda if (q == NULL) {
453 1.1 soda necpb_inttbl[n->ih_intn] = n->ih_next;
454 1.1 soda if (n->ih_next == NULL) {
455 1.1 soda mask = in32(RD94_SYS_PCI_INTMASK);
456 1.1 soda mask &= ~(1 << n->ih_intn);
457 1.1 soda out32(RD94_SYS_PCI_INTMASK, mask);
458 1.1 soda }
459 1.1 soda } else
460 1.1 soda q->ih_next = n->ih_next;
461 1.1 soda
462 1.17 tsutsui evcnt_detach(&n->ih_evcnt);
463 1.17 tsutsui
464 1.1 soda free(n, M_DEVBUF);
465 1.1 soda }
466 1.1 soda
467 1.1 soda /*
468 1.1 soda * Handle PCI/EISA interrupt.
469 1.1 soda */
470 1.20 tsutsui uint32_t
471 1.20 tsutsui necpb_intr(uint32_t mask, struct clockframe *cf)
472 1.1 soda {
473 1.19 tsutsui uint32_t vector, stat;
474 1.1 soda struct necpb_intrhand *p;
475 1.24 tsutsui int i, handled;
476 1.1 soda
477 1.24 tsutsui handled = 0;
478 1.1 soda vector = in32(RD94_SYS_INTSTAT2) & 0xffff;
479 1.1 soda
480 1.1 soda if (vector == 0x4000) {
481 1.1 soda stat = in32(RD94_SYS_PCI_INTSTAT);
482 1.1 soda stat &= in32(RD94_SYS_PCI_INTMASK);
483 1.23 tsutsui for (i = 0; i < 4; i++) {
484 1.23 tsutsui if (stat & (1 << i)) {
485 1.1 soda #if 0
486 1.23 tsutsui printf("pint %d\n", i);
487 1.1 soda #endif
488 1.23 tsutsui p = necpb_inttbl[i];
489 1.1 soda while (p != NULL) {
490 1.24 tsutsui if ((*p->ih_func)(p->ih_arg)) {
491 1.24 tsutsui p->ih_evcnt.ev_count++;
492 1.24 tsutsui handled |= 1;
493 1.24 tsutsui }
494 1.1 soda p = p->ih_next;
495 1.1 soda }
496 1.1 soda }
497 1.1 soda }
498 1.1 soda } else if (vector == 0x8000) {
499 1.1 soda printf("eisa_nmi\n");
500 1.1 soda } else {
501 1.1 soda printf("eint %d\n", vector & 0xff);
502 1.1 soda #if 0
503 1.24 tsutsui if (eisa_intr(vector & 0xff)) {
504 1.24 tsutsui handled |= 1;
505 1.24 tsutsui }
506 1.1 soda #endif
507 1.1 soda }
508 1.1 soda
509 1.29.40.1 mjf return handled ? MIPS_INT_MASK_2 : 0;
510 1.1 soda }
511 1.25 tsutsui
512 1.25 tsutsui #ifdef PCI_NETBSD_CONFIGURE
513 1.25 tsutsui void
514 1.25 tsutsui necpb_conf_interrupt(pci_chipset_tag_t pc, int bus, int dev, int func,
515 1.25 tsutsui int swiz, int *iline)
516 1.25 tsutsui {
517 1.25 tsutsui
518 1.25 tsutsui return;
519 1.25 tsutsui }
520 1.25 tsutsui
521 1.25 tsutsui int
522 1.25 tsutsui necpb_conf_hook(pci_chipset_tag_t pc, int bus, int dev, int func,
523 1.25 tsutsui pcireg_t id)
524 1.25 tsutsui {
525 1.25 tsutsui
526 1.25 tsutsui /* ignore bogus IDs */
527 1.25 tsutsui if (id == 0)
528 1.25 tsutsui return 0;
529 1.25 tsutsui
530 1.25 tsutsui /* don't configure bridges */
531 1.25 tsutsui if (bus == 0 && (dev == 1 || dev == 2))
532 1.25 tsutsui return 0;
533 1.25 tsutsui
534 1.25 tsutsui return PCI_CONF_DEFAULT;
535 1.25 tsutsui }
536 1.25 tsutsui #endif
537