1/*-
2 * Copyright (c) 2001 - 2003 by Thomas Moestl <tmm@FreeBSD.org>.
3 * Copyright (c) 2005 Marius Strobl <marius@FreeBSD.org>
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions, and the following disclaimer,
11 * without modification, immediately at the beginning of the file.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in
14 * the documentation and/or other materials provided with the
15 * distribution.
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
30#include <sys/cdefs.h>
| 1/*-
2 * Copyright (c) 2001 - 2003 by Thomas Moestl <tmm@FreeBSD.org>.
3 * Copyright (c) 2005 Marius Strobl <marius@FreeBSD.org>
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions, and the following disclaimer,
11 * without modification, immediately at the beginning of the file.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in
14 * the documentation and/or other materials provided with the
15 * distribution.
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
30#include <sys/cdefs.h>
|
32
33#include "opt_platform.h"
34#include <sys/param.h>
35#include <sys/systm.h>
36#include <sys/bus.h>
37#include <sys/errno.h>
38#include <sys/libkern.h>
39
40#include <machine/resource.h>
41
42#include <dev/ofw/ofw_bus.h>
43#include <dev/ofw/ofw_bus_subr.h>
44#include <dev/ofw/openfirm.h>
45
46#include "ofw_bus_if.h"
47
48int
49ofw_bus_gen_setup_devinfo(struct ofw_bus_devinfo *obd, phandle_t node)
50{
51
52 if (obd == NULL)
53 return (ENOMEM);
54 /* The 'name' property is considered mandatory. */
55 if ((OF_getprop_alloc(node, "name", 1, (void **)&obd->obd_name)) == -1)
56 return (EINVAL);
57 OF_getprop_alloc(node, "compatible", 1, (void **)&obd->obd_compat);
58 OF_getprop_alloc(node, "device_type", 1, (void **)&obd->obd_type);
59 OF_getprop_alloc(node, "model", 1, (void **)&obd->obd_model);
60 OF_getprop_alloc(node, "status", 1, (void **)&obd->obd_status);
61 obd->obd_node = node;
62 return (0);
63}
64
65void
66ofw_bus_gen_destroy_devinfo(struct ofw_bus_devinfo *obd)
67{
68
69 if (obd == NULL)
70 return;
71 if (obd->obd_compat != NULL)
72 free(obd->obd_compat, M_OFWPROP);
73 if (obd->obd_model != NULL)
74 free(obd->obd_model, M_OFWPROP);
75 if (obd->obd_name != NULL)
76 free(obd->obd_name, M_OFWPROP);
77 if (obd->obd_type != NULL)
78 free(obd->obd_type, M_OFWPROP);
79 if (obd->obd_status != NULL)
80 free(obd->obd_status, M_OFWPROP);
81}
82
83int
84ofw_bus_gen_child_pnpinfo_str(device_t cbdev, device_t child, char *buf,
85 size_t buflen)
86{
87
88 if (ofw_bus_get_name(child) != NULL) {
89 strlcat(buf, "name=", buflen);
90 strlcat(buf, ofw_bus_get_name(child), buflen);
91 }
92
93 if (ofw_bus_get_compat(child) != NULL) {
94 strlcat(buf, " compat=", buflen);
95 strlcat(buf, ofw_bus_get_compat(child), buflen);
96 }
97 return (0);
98};
99
100const char *
101ofw_bus_gen_get_compat(device_t bus, device_t dev)
102{
103 const struct ofw_bus_devinfo *obd;
104
105 obd = OFW_BUS_GET_DEVINFO(bus, dev);
106 if (obd == NULL)
107 return (NULL);
108 return (obd->obd_compat);
109}
110
111const char *
112ofw_bus_gen_get_model(device_t bus, device_t dev)
113{
114 const struct ofw_bus_devinfo *obd;
115
116 obd = OFW_BUS_GET_DEVINFO(bus, dev);
117 if (obd == NULL)
118 return (NULL);
119 return (obd->obd_model);
120}
121
122const char *
123ofw_bus_gen_get_name(device_t bus, device_t dev)
124{
125 const struct ofw_bus_devinfo *obd;
126
127 obd = OFW_BUS_GET_DEVINFO(bus, dev);
128 if (obd == NULL)
129 return (NULL);
130 return (obd->obd_name);
131}
132
133phandle_t
134ofw_bus_gen_get_node(device_t bus, device_t dev)
135{
136 const struct ofw_bus_devinfo *obd;
137
138 obd = OFW_BUS_GET_DEVINFO(bus, dev);
139 if (obd == NULL)
140 return (0);
141 return (obd->obd_node);
142}
143
144const char *
145ofw_bus_gen_get_type(device_t bus, device_t dev)
146{
147 const struct ofw_bus_devinfo *obd;
148
149 obd = OFW_BUS_GET_DEVINFO(bus, dev);
150 if (obd == NULL)
151 return (NULL);
152 return (obd->obd_type);
153}
154
155const char *
156ofw_bus_get_status(device_t dev)
157{
158 const struct ofw_bus_devinfo *obd;
159
160 obd = OFW_BUS_GET_DEVINFO(device_get_parent(dev), dev);
161 if (obd == NULL)
162 return (NULL);
163
164 return (obd->obd_status);
165}
166
167int
168ofw_bus_status_okay(device_t dev)
169{
170 const char *status;
171
172 status = ofw_bus_get_status(dev);
173 if (status == NULL || strcmp(status, "okay") == 0)
174 return (1);
175
176 return (0);
177}
178
179int
180ofw_bus_is_compatible(device_t dev, const char *onecompat)
181{
182 phandle_t node;
183 const char *compat;
184 int len, onelen, l;
185
186 if ((compat = ofw_bus_get_compat(dev)) == NULL)
187 return (0);
188
189 if ((node = ofw_bus_get_node(dev)) == -1)
190 return (0);
191
192 /* Get total 'compatible' prop len */
193 if ((len = OF_getproplen(node, "compatible")) <= 0)
194 return (0);
195
196 onelen = strlen(onecompat);
197
198 while (len > 0) {
199 if (strlen(compat) == onelen &&
200 strncasecmp(compat, onecompat, onelen) == 0)
201 /* Found it. */
202 return (1);
203
204 /* Slide to the next sub-string. */
205 l = strlen(compat) + 1;
206 compat += l;
207 len -= l;
208 }
209 return (0);
210}
211
212int
213ofw_bus_is_compatible_strict(device_t dev, const char *compatible)
214{
215 const char *compat;
216 size_t len;
217
218 if ((compat = ofw_bus_get_compat(dev)) == NULL)
219 return (0);
220
221 len = strlen(compatible);
222 if (strlen(compat) == len &&
223 strncasecmp(compat, compatible, len) == 0)
224 return (1);
225
226 return (0);
227}
228
229const struct ofw_compat_data *
230ofw_bus_search_compatible(device_t dev, const struct ofw_compat_data *compat)
231{
232
233 if (compat == NULL)
234 return NULL;
235
236 for (; compat->ocd_str != NULL; ++compat) {
237 if (ofw_bus_is_compatible(dev, compat->ocd_str))
238 break;
239 }
240
241 return (compat);
242}
243
244int
245ofw_bus_has_prop(device_t dev, const char *propname)
246{
247 phandle_t node;
248
249 if ((node = ofw_bus_get_node(dev)) == -1)
250 return (0);
251
252 return (OF_hasprop(node, propname));
253}
254
255void
256ofw_bus_setup_iinfo(phandle_t node, struct ofw_bus_iinfo *ii, int intrsz)
257{
258 pcell_t addrc;
259 int msksz;
260
261 if (OF_getencprop(node, "#address-cells", &addrc, sizeof(addrc)) == -1)
262 addrc = 2;
263 ii->opi_addrc = addrc * sizeof(pcell_t);
264
265 ii->opi_imapsz = OF_getencprop_alloc(node, "interrupt-map", 1,
266 (void **)&ii->opi_imap);
267 if (ii->opi_imapsz > 0) {
268 msksz = OF_getencprop_alloc(node, "interrupt-map-mask", 1,
269 (void **)&ii->opi_imapmsk);
270 /*
271 * Failure to get the mask is ignored; a full mask is used
272 * then. We barf on bad mask sizes, however.
273 */
274 if (msksz != -1 && msksz != ii->opi_addrc + intrsz)
275 panic("ofw_bus_setup_iinfo: bad interrupt-map-mask "
276 "property!");
277 }
278}
279
280int
281ofw_bus_lookup_imap(phandle_t node, struct ofw_bus_iinfo *ii, void *reg,
282 int regsz, void *pintr, int pintrsz, void *mintr, int mintrsz,
283 phandle_t *iparent)
284{
285 uint8_t maskbuf[regsz + pintrsz];
286 int rv;
287
288 if (ii->opi_imapsz <= 0)
289 return (0);
290 KASSERT(regsz >= ii->opi_addrc,
291 ("ofw_bus_lookup_imap: register size too small: %d < %d",
292 regsz, ii->opi_addrc));
293 if (node != -1) {
294 rv = OF_getencprop(node, "reg", reg, regsz);
295 if (rv < regsz)
296 panic("ofw_bus_lookup_imap: cannot get reg property");
297 }
298 return (ofw_bus_search_intrmap(pintr, pintrsz, reg, ii->opi_addrc,
299 ii->opi_imap, ii->opi_imapsz, ii->opi_imapmsk, maskbuf, mintr,
300 mintrsz, iparent));
301}
302
303/*
304 * Map an interrupt using the firmware reg, interrupt-map and
305 * interrupt-map-mask properties.
306 * The interrupt property to be mapped must be of size intrsz, and pointed to
307 * by intr. The regs property of the node for which the mapping is done must
308 * be passed as regs. This property is an array of register specifications;
309 * the size of the address part of such a specification must be passed as
310 * physsz. Only the first element of the property is used.
311 * imap and imapsz hold the interrupt mask and it's size.
312 * imapmsk is a pointer to the interrupt-map-mask property, which must have
313 * a size of physsz + intrsz; it may be NULL, in which case a full mask is
314 * assumed.
315 * maskbuf must point to a buffer of length physsz + intrsz.
316 * The interrupt is returned in result, which must point to a buffer of length
317 * rintrsz (which gives the expected size of the mapped interrupt).
318 * Returns number of cells in the interrupt if a mapping was found, 0 otherwise.
319 */
320int
321ofw_bus_search_intrmap(void *intr, int intrsz, void *regs, int physsz,
322 void *imap, int imapsz, void *imapmsk, void *maskbuf, void *result,
323 int rintrsz, phandle_t *iparent)
324{
325 phandle_t parent;
326 uint8_t *ref = maskbuf;
327 uint8_t *uiintr = intr;
328 uint8_t *uiregs = regs;
329 uint8_t *uiimapmsk = imapmsk;
330 uint8_t *mptr;
331 pcell_t pintrsz;
332 int i, rsz, tsz;
333
334 rsz = -1;
335 if (imapmsk != NULL) {
336 for (i = 0; i < physsz; i++)
337 ref[i] = uiregs[i] & uiimapmsk[i];
338 for (i = 0; i < intrsz; i++)
339 ref[physsz + i] = uiintr[i] & uiimapmsk[physsz + i];
340 } else {
341 bcopy(regs, ref, physsz);
342 bcopy(intr, ref + physsz, intrsz);
343 }
344
345 mptr = imap;
346 i = imapsz;
347 while (i > 0) {
348 bcopy(mptr + physsz + intrsz, &parent, sizeof(parent));
349 if (OF_searchencprop(OF_node_from_xref(parent),
350 "#interrupt-cells", &pintrsz, sizeof(pintrsz)) == -1)
351 pintrsz = 1; /* default */
352 pintrsz *= sizeof(pcell_t);
353
354 /* Compute the map stride size. */
355 tsz = physsz + intrsz + sizeof(phandle_t) + pintrsz;
356 KASSERT(i >= tsz, ("ofw_bus_search_intrmap: truncated map"));
357
358 if (bcmp(ref, mptr, physsz + intrsz) == 0) {
359 bcopy(mptr + physsz + intrsz + sizeof(parent),
360 result, MIN(rintrsz, pintrsz));
361
362 if (iparent != NULL)
363 *iparent = parent;
364 return (pintrsz/sizeof(pcell_t));
365 }
366 mptr += tsz;
367 i -= tsz;
368 }
369 return (0);
370}
371
372int
| 32
33#include "opt_platform.h"
34#include <sys/param.h>
35#include <sys/systm.h>
36#include <sys/bus.h>
37#include <sys/errno.h>
38#include <sys/libkern.h>
39
40#include <machine/resource.h>
41
42#include <dev/ofw/ofw_bus.h>
43#include <dev/ofw/ofw_bus_subr.h>
44#include <dev/ofw/openfirm.h>
45
46#include "ofw_bus_if.h"
47
48int
49ofw_bus_gen_setup_devinfo(struct ofw_bus_devinfo *obd, phandle_t node)
50{
51
52 if (obd == NULL)
53 return (ENOMEM);
54 /* The 'name' property is considered mandatory. */
55 if ((OF_getprop_alloc(node, "name", 1, (void **)&obd->obd_name)) == -1)
56 return (EINVAL);
57 OF_getprop_alloc(node, "compatible", 1, (void **)&obd->obd_compat);
58 OF_getprop_alloc(node, "device_type", 1, (void **)&obd->obd_type);
59 OF_getprop_alloc(node, "model", 1, (void **)&obd->obd_model);
60 OF_getprop_alloc(node, "status", 1, (void **)&obd->obd_status);
61 obd->obd_node = node;
62 return (0);
63}
64
65void
66ofw_bus_gen_destroy_devinfo(struct ofw_bus_devinfo *obd)
67{
68
69 if (obd == NULL)
70 return;
71 if (obd->obd_compat != NULL)
72 free(obd->obd_compat, M_OFWPROP);
73 if (obd->obd_model != NULL)
74 free(obd->obd_model, M_OFWPROP);
75 if (obd->obd_name != NULL)
76 free(obd->obd_name, M_OFWPROP);
77 if (obd->obd_type != NULL)
78 free(obd->obd_type, M_OFWPROP);
79 if (obd->obd_status != NULL)
80 free(obd->obd_status, M_OFWPROP);
81}
82
83int
84ofw_bus_gen_child_pnpinfo_str(device_t cbdev, device_t child, char *buf,
85 size_t buflen)
86{
87
88 if (ofw_bus_get_name(child) != NULL) {
89 strlcat(buf, "name=", buflen);
90 strlcat(buf, ofw_bus_get_name(child), buflen);
91 }
92
93 if (ofw_bus_get_compat(child) != NULL) {
94 strlcat(buf, " compat=", buflen);
95 strlcat(buf, ofw_bus_get_compat(child), buflen);
96 }
97 return (0);
98};
99
100const char *
101ofw_bus_gen_get_compat(device_t bus, device_t dev)
102{
103 const struct ofw_bus_devinfo *obd;
104
105 obd = OFW_BUS_GET_DEVINFO(bus, dev);
106 if (obd == NULL)
107 return (NULL);
108 return (obd->obd_compat);
109}
110
111const char *
112ofw_bus_gen_get_model(device_t bus, device_t dev)
113{
114 const struct ofw_bus_devinfo *obd;
115
116 obd = OFW_BUS_GET_DEVINFO(bus, dev);
117 if (obd == NULL)
118 return (NULL);
119 return (obd->obd_model);
120}
121
122const char *
123ofw_bus_gen_get_name(device_t bus, device_t dev)
124{
125 const struct ofw_bus_devinfo *obd;
126
127 obd = OFW_BUS_GET_DEVINFO(bus, dev);
128 if (obd == NULL)
129 return (NULL);
130 return (obd->obd_name);
131}
132
133phandle_t
134ofw_bus_gen_get_node(device_t bus, device_t dev)
135{
136 const struct ofw_bus_devinfo *obd;
137
138 obd = OFW_BUS_GET_DEVINFO(bus, dev);
139 if (obd == NULL)
140 return (0);
141 return (obd->obd_node);
142}
143
144const char *
145ofw_bus_gen_get_type(device_t bus, device_t dev)
146{
147 const struct ofw_bus_devinfo *obd;
148
149 obd = OFW_BUS_GET_DEVINFO(bus, dev);
150 if (obd == NULL)
151 return (NULL);
152 return (obd->obd_type);
153}
154
155const char *
156ofw_bus_get_status(device_t dev)
157{
158 const struct ofw_bus_devinfo *obd;
159
160 obd = OFW_BUS_GET_DEVINFO(device_get_parent(dev), dev);
161 if (obd == NULL)
162 return (NULL);
163
164 return (obd->obd_status);
165}
166
167int
168ofw_bus_status_okay(device_t dev)
169{
170 const char *status;
171
172 status = ofw_bus_get_status(dev);
173 if (status == NULL || strcmp(status, "okay") == 0)
174 return (1);
175
176 return (0);
177}
178
179int
180ofw_bus_is_compatible(device_t dev, const char *onecompat)
181{
182 phandle_t node;
183 const char *compat;
184 int len, onelen, l;
185
186 if ((compat = ofw_bus_get_compat(dev)) == NULL)
187 return (0);
188
189 if ((node = ofw_bus_get_node(dev)) == -1)
190 return (0);
191
192 /* Get total 'compatible' prop len */
193 if ((len = OF_getproplen(node, "compatible")) <= 0)
194 return (0);
195
196 onelen = strlen(onecompat);
197
198 while (len > 0) {
199 if (strlen(compat) == onelen &&
200 strncasecmp(compat, onecompat, onelen) == 0)
201 /* Found it. */
202 return (1);
203
204 /* Slide to the next sub-string. */
205 l = strlen(compat) + 1;
206 compat += l;
207 len -= l;
208 }
209 return (0);
210}
211
212int
213ofw_bus_is_compatible_strict(device_t dev, const char *compatible)
214{
215 const char *compat;
216 size_t len;
217
218 if ((compat = ofw_bus_get_compat(dev)) == NULL)
219 return (0);
220
221 len = strlen(compatible);
222 if (strlen(compat) == len &&
223 strncasecmp(compat, compatible, len) == 0)
224 return (1);
225
226 return (0);
227}
228
229const struct ofw_compat_data *
230ofw_bus_search_compatible(device_t dev, const struct ofw_compat_data *compat)
231{
232
233 if (compat == NULL)
234 return NULL;
235
236 for (; compat->ocd_str != NULL; ++compat) {
237 if (ofw_bus_is_compatible(dev, compat->ocd_str))
238 break;
239 }
240
241 return (compat);
242}
243
244int
245ofw_bus_has_prop(device_t dev, const char *propname)
246{
247 phandle_t node;
248
249 if ((node = ofw_bus_get_node(dev)) == -1)
250 return (0);
251
252 return (OF_hasprop(node, propname));
253}
254
255void
256ofw_bus_setup_iinfo(phandle_t node, struct ofw_bus_iinfo *ii, int intrsz)
257{
258 pcell_t addrc;
259 int msksz;
260
261 if (OF_getencprop(node, "#address-cells", &addrc, sizeof(addrc)) == -1)
262 addrc = 2;
263 ii->opi_addrc = addrc * sizeof(pcell_t);
264
265 ii->opi_imapsz = OF_getencprop_alloc(node, "interrupt-map", 1,
266 (void **)&ii->opi_imap);
267 if (ii->opi_imapsz > 0) {
268 msksz = OF_getencprop_alloc(node, "interrupt-map-mask", 1,
269 (void **)&ii->opi_imapmsk);
270 /*
271 * Failure to get the mask is ignored; a full mask is used
272 * then. We barf on bad mask sizes, however.
273 */
274 if (msksz != -1 && msksz != ii->opi_addrc + intrsz)
275 panic("ofw_bus_setup_iinfo: bad interrupt-map-mask "
276 "property!");
277 }
278}
279
280int
281ofw_bus_lookup_imap(phandle_t node, struct ofw_bus_iinfo *ii, void *reg,
282 int regsz, void *pintr, int pintrsz, void *mintr, int mintrsz,
283 phandle_t *iparent)
284{
285 uint8_t maskbuf[regsz + pintrsz];
286 int rv;
287
288 if (ii->opi_imapsz <= 0)
289 return (0);
290 KASSERT(regsz >= ii->opi_addrc,
291 ("ofw_bus_lookup_imap: register size too small: %d < %d",
292 regsz, ii->opi_addrc));
293 if (node != -1) {
294 rv = OF_getencprop(node, "reg", reg, regsz);
295 if (rv < regsz)
296 panic("ofw_bus_lookup_imap: cannot get reg property");
297 }
298 return (ofw_bus_search_intrmap(pintr, pintrsz, reg, ii->opi_addrc,
299 ii->opi_imap, ii->opi_imapsz, ii->opi_imapmsk, maskbuf, mintr,
300 mintrsz, iparent));
301}
302
303/*
304 * Map an interrupt using the firmware reg, interrupt-map and
305 * interrupt-map-mask properties.
306 * The interrupt property to be mapped must be of size intrsz, and pointed to
307 * by intr. The regs property of the node for which the mapping is done must
308 * be passed as regs. This property is an array of register specifications;
309 * the size of the address part of such a specification must be passed as
310 * physsz. Only the first element of the property is used.
311 * imap and imapsz hold the interrupt mask and it's size.
312 * imapmsk is a pointer to the interrupt-map-mask property, which must have
313 * a size of physsz + intrsz; it may be NULL, in which case a full mask is
314 * assumed.
315 * maskbuf must point to a buffer of length physsz + intrsz.
316 * The interrupt is returned in result, which must point to a buffer of length
317 * rintrsz (which gives the expected size of the mapped interrupt).
318 * Returns number of cells in the interrupt if a mapping was found, 0 otherwise.
319 */
320int
321ofw_bus_search_intrmap(void *intr, int intrsz, void *regs, int physsz,
322 void *imap, int imapsz, void *imapmsk, void *maskbuf, void *result,
323 int rintrsz, phandle_t *iparent)
324{
325 phandle_t parent;
326 uint8_t *ref = maskbuf;
327 uint8_t *uiintr = intr;
328 uint8_t *uiregs = regs;
329 uint8_t *uiimapmsk = imapmsk;
330 uint8_t *mptr;
331 pcell_t pintrsz;
332 int i, rsz, tsz;
333
334 rsz = -1;
335 if (imapmsk != NULL) {
336 for (i = 0; i < physsz; i++)
337 ref[i] = uiregs[i] & uiimapmsk[i];
338 for (i = 0; i < intrsz; i++)
339 ref[physsz + i] = uiintr[i] & uiimapmsk[physsz + i];
340 } else {
341 bcopy(regs, ref, physsz);
342 bcopy(intr, ref + physsz, intrsz);
343 }
344
345 mptr = imap;
346 i = imapsz;
347 while (i > 0) {
348 bcopy(mptr + physsz + intrsz, &parent, sizeof(parent));
349 if (OF_searchencprop(OF_node_from_xref(parent),
350 "#interrupt-cells", &pintrsz, sizeof(pintrsz)) == -1)
351 pintrsz = 1; /* default */
352 pintrsz *= sizeof(pcell_t);
353
354 /* Compute the map stride size. */
355 tsz = physsz + intrsz + sizeof(phandle_t) + pintrsz;
356 KASSERT(i >= tsz, ("ofw_bus_search_intrmap: truncated map"));
357
358 if (bcmp(ref, mptr, physsz + intrsz) == 0) {
359 bcopy(mptr + physsz + intrsz + sizeof(parent),
360 result, MIN(rintrsz, pintrsz));
361
362 if (iparent != NULL)
363 *iparent = parent;
364 return (pintrsz/sizeof(pcell_t));
365 }
366 mptr += tsz;
367 i -= tsz;
368 }
369 return (0);
370}
371
372int
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373ofw_bus_intr_to_rl(device_t dev, phandle_t node, struct resource_list *rl)
374{
375 phandle_t iparent;
376 uint32_t icells, *intr;
377 int err, i, irqnum, nintr, rid;
378 boolean_t extended;
379
380 nintr = OF_getencprop_alloc(node, "interrupts", sizeof(*intr),
381 (void **)&intr);
382 if (nintr > 0) {
383 if (OF_searchencprop(node, "interrupt-parent", &iparent,
384 sizeof(iparent)) == -1) {
385 for (iparent = node; iparent != 0;
386 iparent = OF_parent(node)) {
387 if (OF_hasprop(iparent, "interrupt-controller"))
388 break;
389 }
390 if (iparent == 0) {
391 device_printf(dev, "No interrupt-parent found, "
392 "assuming direct parent\n");
393 iparent = OF_parent(node);
394 }
395 iparent = OF_xref_from_node(iparent);
396 }
397 if (OF_searchencprop(OF_node_from_xref(iparent),
398 "#interrupt-cells", &icells, sizeof(icells)) == -1) {
399 device_printf(dev, "Missing #interrupt-cells "
400 "property, assuming <1>\n");
401 icells = 1;
402 }
403 if (icells < 1 || icells > nintr) {
404 device_printf(dev, "Invalid #interrupt-cells property "
405 "value <%d>, assuming <1>\n", icells);
406 icells = 1;
407 }
408 extended = false;
409 } else {
410 nintr = OF_getencprop_alloc(node, "interrupts-extended",
411 sizeof(*intr), (void **)&intr);
412 if (nintr <= 0)
413 return (0);
414 extended = true;
415 }
416 err = 0;
417 rid = 0;
418 for (i = 0; i < nintr; i += icells) {
419 if (extended) {
420 iparent = intr[i++];
421 if (OF_searchencprop(OF_node_from_xref(iparent),
422 "#interrupt-cells", &icells, sizeof(icells)) == -1) {
423 device_printf(dev, "Missing #interrupt-cells "
424 "property\n");
425 err = ENOENT;
426 break;
427 }
428 if (icells < 1 || (i + icells) > nintr) {
429 device_printf(dev, "Invalid #interrupt-cells "
430 "property value <%d>\n", icells);
431 err = ERANGE;
432 break;
433 }
434 }
435 irqnum = ofw_bus_map_intr(dev, iparent, icells, &intr[i]);
436 resource_list_add(rl, SYS_RES_IRQ, rid++, irqnum, irqnum, 1);
437 }
438 free(intr, M_OFWPROP);
439 return (err);
440}
441
| 421ofw_bus_intr_to_rl(device_t dev, phandle_t node, struct resource_list *rl)
422{
423 phandle_t iparent;
424 uint32_t icells, *intr;
425 int err, i, irqnum, nintr, rid;
426 boolean_t extended;
427
428 nintr = OF_getencprop_alloc(node, "interrupts", sizeof(*intr),
429 (void **)&intr);
430 if (nintr > 0) {
431 if (OF_searchencprop(node, "interrupt-parent", &iparent,
432 sizeof(iparent)) == -1) {
433 for (iparent = node; iparent != 0;
434 iparent = OF_parent(node)) {
435 if (OF_hasprop(iparent, "interrupt-controller"))
436 break;
437 }
438 if (iparent == 0) {
439 device_printf(dev, "No interrupt-parent found, "
440 "assuming direct parent\n");
441 iparent = OF_parent(node);
442 }
443 iparent = OF_xref_from_node(iparent);
444 }
445 if (OF_searchencprop(OF_node_from_xref(iparent),
446 "#interrupt-cells", &icells, sizeof(icells)) == -1) {
447 device_printf(dev, "Missing #interrupt-cells "
448 "property, assuming <1>\n");
449 icells = 1;
450 }
451 if (icells < 1 || icells > nintr) {
452 device_printf(dev, "Invalid #interrupt-cells property "
453 "value <%d>, assuming <1>\n", icells);
454 icells = 1;
455 }
456 extended = false;
457 } else {
458 nintr = OF_getencprop_alloc(node, "interrupts-extended",
459 sizeof(*intr), (void **)&intr);
460 if (nintr <= 0)
461 return (0);
462 extended = true;
463 }
464 err = 0;
465 rid = 0;
466 for (i = 0; i < nintr; i += icells) {
467 if (extended) {
468 iparent = intr[i++];
469 if (OF_searchencprop(OF_node_from_xref(iparent),
470 "#interrupt-cells", &icells, sizeof(icells)) == -1) {
471 device_printf(dev, "Missing #interrupt-cells "
472 "property\n");
473 err = ENOENT;
474 break;
475 }
476 if (icells < 1 || (i + icells) > nintr) {
477 device_printf(dev, "Invalid #interrupt-cells "
478 "property value <%d>\n", icells);
479 err = ERANGE;
480 break;
481 }
482 }
483 irqnum = ofw_bus_map_intr(dev, iparent, icells, &intr[i]);
484 resource_list_add(rl, SYS_RES_IRQ, rid++, irqnum, irqnum, 1);
485 }
486 free(intr, M_OFWPROP);
487 return (err);
488}
489
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