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-rw-r--r--drivers/pcmcia/Makefile2
-rw-r--r--drivers/pcmcia/cistpl.c100
-rw-r--r--drivers/pcmcia/pcmcia_cis.c355
-rw-r--r--drivers/pcmcia/pcmcia_resource.c229
4 files changed, 356 insertions, 330 deletions
diff --git a/drivers/pcmcia/Makefile b/drivers/pcmcia/Makefile
index 381b031d9d75..8122b03e2ae5 100644
--- a/drivers/pcmcia/Makefile
+++ b/drivers/pcmcia/Makefile
@@ -6,7 +6,7 @@ pcmcia_core-y += cs.o rsrc_mgr.o socket_sysfs.o
6pcmcia_core-$(CONFIG_CARDBUS) += cardbus.o 6pcmcia_core-$(CONFIG_CARDBUS) += cardbus.o
7obj-$(CONFIG_PCCARD) += pcmcia_core.o 7obj-$(CONFIG_PCCARD) += pcmcia_core.o
8 8
9pcmcia-y += ds.o pcmcia_resource.o cistpl.o 9pcmcia-y += ds.o pcmcia_resource.o cistpl.o pcmcia_cis.o
10pcmcia-$(CONFIG_PCMCIA_IOCTL) += pcmcia_ioctl.o 10pcmcia-$(CONFIG_PCMCIA_IOCTL) += pcmcia_ioctl.o
11obj-$(CONFIG_PCMCIA) += pcmcia.o 11obj-$(CONFIG_PCMCIA) += pcmcia.o
12 12
diff --git a/drivers/pcmcia/cistpl.c b/drivers/pcmcia/cistpl.c
index 854959cada3a..e0b09e71d5c0 100644
--- a/drivers/pcmcia/cistpl.c
+++ b/drivers/pcmcia/cistpl.c
@@ -1362,106 +1362,6 @@ EXPORT_SYMBOL(pcmcia_parse_tuple);
1362 1362
1363 1363
1364/** 1364/**
1365 * pccard_read_tuple() - internal CIS tuple access
1366 * @s: the struct pcmcia_socket where the card is inserted
1367 * @function: the device function we loop for
1368 * @code: which CIS code shall we look for?
1369 * @parse: buffer where the tuple shall be parsed (or NULL, if no parse)
1370 *
1371 * pccard_read_tuple() reads out one tuple and attempts to parse it
1372 */
1373int pccard_read_tuple(struct pcmcia_socket *s, unsigned int function,
1374 cisdata_t code, void *parse)
1375{
1376 tuple_t tuple;
1377 cisdata_t *buf;
1378 int ret;
1379
1380 buf = kmalloc(256, GFP_KERNEL);
1381 if (buf == NULL) {
1382 dev_printk(KERN_WARNING, &s->dev, "no memory to read tuple\n");
1383 return -ENOMEM;
1384 }
1385 tuple.DesiredTuple = code;
1386 tuple.Attributes = 0;
1387 if (function == BIND_FN_ALL)
1388 tuple.Attributes = TUPLE_RETURN_COMMON;
1389 ret = pccard_get_first_tuple(s, function, &tuple);
1390 if (ret != 0)
1391 goto done;
1392 tuple.TupleData = buf;
1393 tuple.TupleOffset = 0;
1394 tuple.TupleDataMax = 255;
1395 ret = pccard_get_tuple_data(s, &tuple);
1396 if (ret != 0)
1397 goto done;
1398 ret = pcmcia_parse_tuple(&tuple, parse);
1399done:
1400 kfree(buf);
1401 return ret;
1402}
1403
1404
1405/**
1406 * pccard_loop_tuple() - loop over tuples in the CIS
1407 * @s: the struct pcmcia_socket where the card is inserted
1408 * @function: the device function we loop for
1409 * @code: which CIS code shall we look for?
1410 * @parse: buffer where the tuple shall be parsed (or NULL, if no parse)
1411 * @priv_data: private data to be passed to the loop_tuple function.
1412 * @loop_tuple: function to call for each CIS entry of type @function. IT
1413 * gets passed the raw tuple, the paresed tuple (if @parse is
1414 * set) and @priv_data.
1415 *
1416 * pccard_loop_tuple() loops over all CIS entries of type @function, and
1417 * calls the @loop_tuple function for each entry. If the call to @loop_tuple
1418 * returns 0, the loop exits. Returns 0 on success or errorcode otherwise.
1419 */
1420int pccard_loop_tuple(struct pcmcia_socket *s, unsigned int function,
1421 cisdata_t code, cisparse_t *parse, void *priv_data,
1422 int (*loop_tuple) (tuple_t *tuple,
1423 cisparse_t *parse,
1424 void *priv_data))
1425{
1426 tuple_t tuple;
1427 cisdata_t *buf;
1428 int ret;
1429
1430 buf = kzalloc(256, GFP_KERNEL);
1431 if (buf == NULL) {
1432 dev_printk(KERN_WARNING, &s->dev, "no memory to read tuple\n");
1433 return -ENOMEM;
1434 }
1435
1436 tuple.TupleData = buf;
1437 tuple.TupleDataMax = 255;
1438 tuple.TupleOffset = 0;
1439 tuple.DesiredTuple = code;
1440 tuple.Attributes = 0;
1441
1442 ret = pccard_get_first_tuple(s, function, &tuple);
1443 while (!ret) {
1444 if (pccard_get_tuple_data(s, &tuple))
1445 goto next_entry;
1446
1447 if (parse)
1448 if (pcmcia_parse_tuple(&tuple, parse))
1449 goto next_entry;
1450
1451 ret = loop_tuple(&tuple, parse, priv_data);
1452 if (!ret)
1453 break;
1454
1455next_entry:
1456 ret = pccard_get_next_tuple(s, function, &tuple);
1457 }
1458
1459 kfree(buf);
1460 return ret;
1461}
1462
1463
1464/**
1465 * pccard_validate_cis() - check whether card has a sensible CIS 1365 * pccard_validate_cis() - check whether card has a sensible CIS
1466 * @s: the struct pcmcia_socket we are to check 1366 * @s: the struct pcmcia_socket we are to check
1467 * @info: returns the number of tuples in the (valid) CIS, or 0 1367 * @info: returns the number of tuples in the (valid) CIS, or 0
diff --git a/drivers/pcmcia/pcmcia_cis.c b/drivers/pcmcia/pcmcia_cis.c
new file mode 100644
index 000000000000..7406387f1f5e
--- /dev/null
+++ b/drivers/pcmcia/pcmcia_cis.c
@@ -0,0 +1,355 @@
1/*
2 * PCMCIA high-level CIS access functions
3 *
4 * The initial developer of the original code is David A. Hinds
5 * <dahinds@users.sourceforge.net>. Portions created by David A. Hinds
6 * are Copyright (C) 1999 David A. Hinds. All Rights Reserved.
7 *
8 * Copyright (C) 1999 David A. Hinds
9 * Copyright (C) 2004-2009 Dominik Brodowski
10 *
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License version 2 as
13 * published by the Free Software Foundation.
14 *
15 */
16
17#include <linux/module.h>
18#include <linux/kernel.h>
19#include <linux/netdevice.h>
20
21#include <pcmcia/cs_types.h>
22#include <pcmcia/cisreg.h>
23#include <pcmcia/cistpl.h>
24#include <pcmcia/ss.h>
25#include <pcmcia/cs.h>
26#include <pcmcia/ds.h>
27#include "cs_internal.h"
28
29
30/**
31 * pccard_read_tuple() - internal CIS tuple access
32 * @s: the struct pcmcia_socket where the card is inserted
33 * @function: the device function we loop for
34 * @code: which CIS code shall we look for?
35 * @parse: buffer where the tuple shall be parsed (or NULL, if no parse)
36 *
37 * pccard_read_tuple() reads out one tuple and attempts to parse it
38 */
39int pccard_read_tuple(struct pcmcia_socket *s, unsigned int function,
40 cisdata_t code, void *parse)
41{
42 tuple_t tuple;
43 cisdata_t *buf;
44 int ret;
45
46 buf = kmalloc(256, GFP_KERNEL);
47 if (buf == NULL) {
48 dev_printk(KERN_WARNING, &s->dev, "no memory to read tuple\n");
49 return -ENOMEM;
50 }
51 tuple.DesiredTuple = code;
52 tuple.Attributes = 0;
53 if (function == BIND_FN_ALL)
54 tuple.Attributes = TUPLE_RETURN_COMMON;
55 ret = pccard_get_first_tuple(s, function, &tuple);
56 if (ret != 0)
57 goto done;
58 tuple.TupleData = buf;
59 tuple.TupleOffset = 0;
60 tuple.TupleDataMax = 255;
61 ret = pccard_get_tuple_data(s, &tuple);
62 if (ret != 0)
63 goto done;
64 ret = pcmcia_parse_tuple(&tuple, parse);
65done:
66 kfree(buf);
67 return ret;
68}
69
70
71/**
72 * pccard_loop_tuple() - loop over tuples in the CIS
73 * @s: the struct pcmcia_socket where the card is inserted
74 * @function: the device function we loop for
75 * @code: which CIS code shall we look for?
76 * @parse: buffer where the tuple shall be parsed (or NULL, if no parse)
77 * @priv_data: private data to be passed to the loop_tuple function.
78 * @loop_tuple: function to call for each CIS entry of type @function. IT
79 * gets passed the raw tuple, the paresed tuple (if @parse is
80 * set) and @priv_data.
81 *
82 * pccard_loop_tuple() loops over all CIS entries of type @function, and
83 * calls the @loop_tuple function for each entry. If the call to @loop_tuple
84 * returns 0, the loop exits. Returns 0 on success or errorcode otherwise.
85 */
86int pccard_loop_tuple(struct pcmcia_socket *s, unsigned int function,
87 cisdata_t code, cisparse_t *parse, void *priv_data,
88 int (*loop_tuple) (tuple_t *tuple,
89 cisparse_t *parse,
90 void *priv_data))
91{
92 tuple_t tuple;
93 cisdata_t *buf;
94 int ret;
95
96 buf = kzalloc(256, GFP_KERNEL);
97 if (buf == NULL) {
98 dev_printk(KERN_WARNING, &s->dev, "no memory to read tuple\n");
99 return -ENOMEM;
100 }
101
102 tuple.TupleData = buf;
103 tuple.TupleDataMax = 255;
104 tuple.TupleOffset = 0;
105 tuple.DesiredTuple = code;
106 tuple.Attributes = 0;
107
108 ret = pccard_get_first_tuple(s, function, &tuple);
109 while (!ret) {
110 if (pccard_get_tuple_data(s, &tuple))
111 goto next_entry;
112
113 if (parse)
114 if (pcmcia_parse_tuple(&tuple, parse))
115 goto next_entry;
116
117 ret = loop_tuple(&tuple, parse, priv_data);
118 if (!ret)
119 break;
120
121next_entry:
122 ret = pccard_get_next_tuple(s, function, &tuple);
123 }
124
125 kfree(buf);
126 return ret;
127}
128
129struct pcmcia_cfg_mem {
130 struct pcmcia_device *p_dev;
131 void *priv_data;
132 int (*conf_check) (struct pcmcia_device *p_dev,
133 cistpl_cftable_entry_t *cfg,
134 cistpl_cftable_entry_t *dflt,
135 unsigned int vcc,
136 void *priv_data);
137 cisparse_t parse;
138 cistpl_cftable_entry_t dflt;
139};
140
141/**
142 * pcmcia_do_loop_config() - internal helper for pcmcia_loop_config()
143 *
144 * pcmcia_do_loop_config() is the internal callback for the call from
145 * pcmcia_loop_config() to pccard_loop_tuple(). Data is transferred
146 * by a struct pcmcia_cfg_mem.
147 */
148static int pcmcia_do_loop_config(tuple_t *tuple, cisparse_t *parse, void *priv)
149{
150 cistpl_cftable_entry_t *cfg = &parse->cftable_entry;
151 struct pcmcia_cfg_mem *cfg_mem = priv;
152
153 /* default values */
154 cfg_mem->p_dev->conf.ConfigIndex = cfg->index;
155 if (cfg->flags & CISTPL_CFTABLE_DEFAULT)
156 cfg_mem->dflt = *cfg;
157
158 return cfg_mem->conf_check(cfg_mem->p_dev, cfg, &cfg_mem->dflt,
159 cfg_mem->p_dev->socket->socket.Vcc,
160 cfg_mem->priv_data);
161}
162
163/**
164 * pcmcia_loop_config() - loop over configuration options
165 * @p_dev: the struct pcmcia_device which we need to loop for.
166 * @conf_check: function to call for each configuration option.
167 * It gets passed the struct pcmcia_device, the CIS data
168 * describing the configuration option, and private data
169 * being passed to pcmcia_loop_config()
170 * @priv_data: private data to be passed to the conf_check function.
171 *
172 * pcmcia_loop_config() loops over all configuration options, and calls
173 * the driver-specific conf_check() for each one, checking whether
174 * it is a valid one. Returns 0 on success or errorcode otherwise.
175 */
176int pcmcia_loop_config(struct pcmcia_device *p_dev,
177 int (*conf_check) (struct pcmcia_device *p_dev,
178 cistpl_cftable_entry_t *cfg,
179 cistpl_cftable_entry_t *dflt,
180 unsigned int vcc,
181 void *priv_data),
182 void *priv_data)
183{
184 struct pcmcia_cfg_mem *cfg_mem;
185 int ret;
186
187 cfg_mem = kzalloc(sizeof(struct pcmcia_cfg_mem), GFP_KERNEL);
188 if (cfg_mem == NULL)
189 return -ENOMEM;
190
191 cfg_mem->p_dev = p_dev;
192 cfg_mem->conf_check = conf_check;
193 cfg_mem->priv_data = priv_data;
194
195 ret = pccard_loop_tuple(p_dev->socket, p_dev->func,
196 CISTPL_CFTABLE_ENTRY, &cfg_mem->parse,
197 cfg_mem, pcmcia_do_loop_config);
198
199 kfree(cfg_mem);
200 return ret;
201}
202EXPORT_SYMBOL(pcmcia_loop_config);
203
204
205struct pcmcia_loop_mem {
206 struct pcmcia_device *p_dev;
207 void *priv_data;
208 int (*loop_tuple) (struct pcmcia_device *p_dev,
209 tuple_t *tuple,
210 void *priv_data);
211};
212
213/**
214 * pcmcia_do_loop_tuple() - internal helper for pcmcia_loop_config()
215 *
216 * pcmcia_do_loop_tuple() is the internal callback for the call from
217 * pcmcia_loop_tuple() to pccard_loop_tuple(). Data is transferred
218 * by a struct pcmcia_cfg_mem.
219 */
220static int pcmcia_do_loop_tuple(tuple_t *tuple, cisparse_t *parse, void *priv)
221{
222 struct pcmcia_loop_mem *loop = priv;
223
224 return loop->loop_tuple(loop->p_dev, tuple, loop->priv_data);
225};
226
227/**
228 * pcmcia_loop_tuple() - loop over tuples in the CIS
229 * @p_dev: the struct pcmcia_device which we need to loop for.
230 * @code: which CIS code shall we look for?
231 * @priv_data: private data to be passed to the loop_tuple function.
232 * @loop_tuple: function to call for each CIS entry of type @function. IT
233 * gets passed the raw tuple and @priv_data.
234 *
235 * pcmcia_loop_tuple() loops over all CIS entries of type @function, and
236 * calls the @loop_tuple function for each entry. If the call to @loop_tuple
237 * returns 0, the loop exits. Returns 0 on success or errorcode otherwise.
238 */
239int pcmcia_loop_tuple(struct pcmcia_device *p_dev, cisdata_t code,
240 int (*loop_tuple) (struct pcmcia_device *p_dev,
241 tuple_t *tuple,
242 void *priv_data),
243 void *priv_data)
244{
245 struct pcmcia_loop_mem loop = {
246 .p_dev = p_dev,
247 .loop_tuple = loop_tuple,
248 .priv_data = priv_data};
249
250 return pccard_loop_tuple(p_dev->socket, p_dev->func, code, NULL,
251 &loop, pcmcia_do_loop_tuple);
252}
253EXPORT_SYMBOL(pcmcia_loop_tuple);
254
255
256struct pcmcia_loop_get {
257 size_t len;
258 cisdata_t **buf;
259};
260
261/**
262 * pcmcia_do_get_tuple() - internal helper for pcmcia_get_tuple()
263 *
264 * pcmcia_do_get_tuple() is the internal callback for the call from
265 * pcmcia_get_tuple() to pcmcia_loop_tuple(). As we're only interested in
266 * the first tuple, return 0 unconditionally. Create a memory buffer large
267 * enough to hold the content of the tuple, and fill it with the tuple data.
268 * The caller is responsible to free the buffer.
269 */
270static int pcmcia_do_get_tuple(struct pcmcia_device *p_dev, tuple_t *tuple,
271 void *priv)
272{
273 struct pcmcia_loop_get *get = priv;
274
275 *get->buf = kzalloc(tuple->TupleDataLen, GFP_KERNEL);
276 if (*get->buf) {
277 get->len = tuple->TupleDataLen;
278 memcpy(*get->buf, tuple->TupleData, tuple->TupleDataLen);
279 } else
280 dev_dbg(&p_dev->dev, "do_get_tuple: out of memory\n");
281 return 0;
282}
283
284/**
285 * pcmcia_get_tuple() - get first tuple from CIS
286 * @p_dev: the struct pcmcia_device which we need to loop for.
287 * @code: which CIS code shall we look for?
288 * @buf: pointer to store the buffer to.
289 *
290 * pcmcia_get_tuple() gets the content of the first CIS entry of type @code.
291 * It returns the buffer length (or zero). The caller is responsible to free
292 * the buffer passed in @buf.
293 */
294size_t pcmcia_get_tuple(struct pcmcia_device *p_dev, cisdata_t code,
295 unsigned char **buf)
296{
297 struct pcmcia_loop_get get = {
298 .len = 0,
299 .buf = buf,
300 };
301
302 *get.buf = NULL;
303 pcmcia_loop_tuple(p_dev, code, pcmcia_do_get_tuple, &get);
304
305 return get.len;
306}
307EXPORT_SYMBOL(pcmcia_get_tuple);
308
309
310/**
311 * pcmcia_do_get_mac() - internal helper for pcmcia_get_mac_from_cis()
312 *
313 * pcmcia_do_get_mac() is the internal callback for the call from
314 * pcmcia_get_mac_from_cis() to pcmcia_loop_tuple(). We check whether the
315 * tuple contains a proper LAN_NODE_ID of length 6, and copy the data
316 * to struct net_device->dev_addr[i].
317 */
318static int pcmcia_do_get_mac(struct pcmcia_device *p_dev, tuple_t *tuple,
319 void *priv)
320{
321 struct net_device *dev = priv;
322 int i;
323
324 if (tuple->TupleData[0] != CISTPL_FUNCE_LAN_NODE_ID)
325 return -EINVAL;
326 if (tuple->TupleDataLen < ETH_ALEN + 2) {
327 dev_warn(&p_dev->dev, "Invalid CIS tuple length for "
328 "LAN_NODE_ID\n");
329 return -EINVAL;
330 }
331
332 if (tuple->TupleData[1] != ETH_ALEN) {
333 dev_warn(&p_dev->dev, "Invalid header for LAN_NODE_ID\n");
334 return -EINVAL;
335 }
336 for (i = 0; i < 6; i++)
337 dev->dev_addr[i] = tuple->TupleData[i+2];
338 return 0;
339}
340
341/**
342 * pcmcia_get_mac_from_cis() - read out MAC address from CISTPL_FUNCE
343 * @p_dev: the struct pcmcia_device for which we want the address.
344 * @dev: a properly prepared struct net_device to store the info to.
345 *
346 * pcmcia_get_mac_from_cis() reads out the hardware MAC address from
347 * CISTPL_FUNCE and stores it into struct net_device *dev->dev_addr which
348 * must be set up properly by the driver (see examples!).
349 */
350int pcmcia_get_mac_from_cis(struct pcmcia_device *p_dev, struct net_device *dev)
351{
352 return pcmcia_loop_tuple(p_dev, CISTPL_FUNCE, pcmcia_do_get_mac, dev);
353}
354EXPORT_SYMBOL(pcmcia_get_mac_from_cis);
355
diff --git a/drivers/pcmcia/pcmcia_resource.c b/drivers/pcmcia/pcmcia_resource.c
index f355c5ac407b..9c5f9cd5e03d 100644
--- a/drivers/pcmcia/pcmcia_resource.c
+++ b/drivers/pcmcia/pcmcia_resource.c
@@ -923,232 +923,3 @@ void pcmcia_disable_device(struct pcmcia_device *p_dev)
923 pcmcia_release_window(p_dev, p_dev->win); 923 pcmcia_release_window(p_dev, p_dev->win);
924} 924}
925EXPORT_SYMBOL(pcmcia_disable_device); 925EXPORT_SYMBOL(pcmcia_disable_device);
926
927
928struct pcmcia_cfg_mem {
929 struct pcmcia_device *p_dev;
930 void *priv_data;
931 int (*conf_check) (struct pcmcia_device *p_dev,
932 cistpl_cftable_entry_t *cfg,
933 cistpl_cftable_entry_t *dflt,
934 unsigned int vcc,
935 void *priv_data);
936 cisparse_t parse;
937 cistpl_cftable_entry_t dflt;
938};
939
940/**
941 * pcmcia_do_loop_config() - internal helper for pcmcia_loop_config()
942 *
943 * pcmcia_do_loop_config() is the internal callback for the call from
944 * pcmcia_loop_config() to pccard_loop_tuple(). Data is transferred
945 * by a struct pcmcia_cfg_mem.
946 */
947static int pcmcia_do_loop_config(tuple_t *tuple, cisparse_t *parse, void *priv)
948{
949 cistpl_cftable_entry_t *cfg = &parse->cftable_entry;
950 struct pcmcia_cfg_mem *cfg_mem = priv;
951
952 /* default values */
953 cfg_mem->p_dev->conf.ConfigIndex = cfg->index;
954 if (cfg->flags & CISTPL_CFTABLE_DEFAULT)
955 cfg_mem->dflt = *cfg;
956
957 return cfg_mem->conf_check(cfg_mem->p_dev, cfg, &cfg_mem->dflt,
958 cfg_mem->p_dev->socket->socket.Vcc,
959 cfg_mem->priv_data);
960}
961
962/**
963 * pcmcia_loop_config() - loop over configuration options
964 * @p_dev: the struct pcmcia_device which we need to loop for.
965 * @conf_check: function to call for each configuration option.
966 * It gets passed the struct pcmcia_device, the CIS data
967 * describing the configuration option, and private data
968 * being passed to pcmcia_loop_config()
969 * @priv_data: private data to be passed to the conf_check function.
970 *
971 * pcmcia_loop_config() loops over all configuration options, and calls
972 * the driver-specific conf_check() for each one, checking whether
973 * it is a valid one. Returns 0 on success or errorcode otherwise.
974 */
975int pcmcia_loop_config(struct pcmcia_device *p_dev,
976 int (*conf_check) (struct pcmcia_device *p_dev,
977 cistpl_cftable_entry_t *cfg,
978 cistpl_cftable_entry_t *dflt,
979 unsigned int vcc,
980 void *priv_data),
981 void *priv_data)
982{
983 struct pcmcia_cfg_mem *cfg_mem;
984 int ret;
985
986 cfg_mem = kzalloc(sizeof(struct pcmcia_cfg_mem), GFP_KERNEL);
987 if (cfg_mem == NULL)
988 return -ENOMEM;
989
990 cfg_mem->p_dev = p_dev;
991 cfg_mem->conf_check = conf_check;
992 cfg_mem->priv_data = priv_data;
993
994 ret = pccard_loop_tuple(p_dev->socket, p_dev->func,
995 CISTPL_CFTABLE_ENTRY, &cfg_mem->parse,
996 cfg_mem, pcmcia_do_loop_config);
997
998 kfree(cfg_mem);
999 return ret;
1000}
1001EXPORT_SYMBOL(pcmcia_loop_config);
1002
1003
1004struct pcmcia_loop_mem {
1005 struct pcmcia_device *p_dev;
1006 void *priv_data;
1007 int (*loop_tuple) (struct pcmcia_device *p_dev,
1008 tuple_t *tuple,
1009 void *priv_data);
1010};
1011
1012/**
1013 * pcmcia_do_loop_tuple() - internal helper for pcmcia_loop_config()
1014 *
1015 * pcmcia_do_loop_tuple() is the internal callback for the call from
1016 * pcmcia_loop_tuple() to pccard_loop_tuple(). Data is transferred
1017 * by a struct pcmcia_cfg_mem.
1018 */
1019static int pcmcia_do_loop_tuple(tuple_t *tuple, cisparse_t *parse, void *priv)
1020{
1021 struct pcmcia_loop_mem *loop = priv;
1022
1023 return loop->loop_tuple(loop->p_dev, tuple, loop->priv_data);
1024};
1025
1026/**
1027 * pcmcia_loop_tuple() - loop over tuples in the CIS
1028 * @p_dev: the struct pcmcia_device which we need to loop for.
1029 * @code: which CIS code shall we look for?
1030 * @priv_data: private data to be passed to the loop_tuple function.
1031 * @loop_tuple: function to call for each CIS entry of type @function. IT
1032 * gets passed the raw tuple and @priv_data.
1033 *
1034 * pcmcia_loop_tuple() loops over all CIS entries of type @function, and
1035 * calls the @loop_tuple function for each entry. If the call to @loop_tuple
1036 * returns 0, the loop exits. Returns 0 on success or errorcode otherwise.
1037 */
1038int pcmcia_loop_tuple(struct pcmcia_device *p_dev, cisdata_t code,
1039 int (*loop_tuple) (struct pcmcia_device *p_dev,
1040 tuple_t *tuple,
1041 void *priv_data),
1042 void *priv_data)
1043{
1044 struct pcmcia_loop_mem loop = {
1045 .p_dev = p_dev,
1046 .loop_tuple = loop_tuple,
1047 .priv_data = priv_data};
1048
1049 return pccard_loop_tuple(p_dev->socket, p_dev->func, code, NULL,
1050 &loop, pcmcia_do_loop_tuple);
1051}
1052EXPORT_SYMBOL(pcmcia_loop_tuple);
1053
1054
1055struct pcmcia_loop_get {
1056 size_t len;
1057 cisdata_t **buf;
1058};
1059
1060/**
1061 * pcmcia_do_get_tuple() - internal helper for pcmcia_get_tuple()
1062 *
1063 * pcmcia_do_get_tuple() is the internal callback for the call from
1064 * pcmcia_get_tuple() to pcmcia_loop_tuple(). As we're only interested in
1065 * the first tuple, return 0 unconditionally. Create a memory buffer large
1066 * enough to hold the content of the tuple, and fill it with the tuple data.
1067 * The caller is responsible to free the buffer.
1068 */
1069static int pcmcia_do_get_tuple(struct pcmcia_device *p_dev, tuple_t *tuple,
1070 void *priv)
1071{
1072 struct pcmcia_loop_get *get = priv;
1073
1074 *get->buf = kzalloc(tuple->TupleDataLen, GFP_KERNEL);
1075 if (*get->buf) {
1076 get->len = tuple->TupleDataLen;
1077 memcpy(*get->buf, tuple->TupleData, tuple->TupleDataLen);
1078 } else
1079 dev_dbg(&p_dev->dev, "do_get_tuple: out of memory\n");
1080 return 0;
1081}
1082
1083/**
1084 * pcmcia_get_tuple() - get first tuple from CIS
1085 * @p_dev: the struct pcmcia_device which we need to loop for.
1086 * @code: which CIS code shall we look for?
1087 * @buf: pointer to store the buffer to.
1088 *
1089 * pcmcia_get_tuple() gets the content of the first CIS entry of type @code.
1090 * It returns the buffer length (or zero). The caller is responsible to free
1091 * the buffer passed in @buf.
1092 */
1093size_t pcmcia_get_tuple(struct pcmcia_device *p_dev, cisdata_t code,
1094 unsigned char **buf)
1095{
1096 struct pcmcia_loop_get get = {
1097 .len = 0,
1098 .buf = buf,
1099 };
1100
1101 *get.buf = NULL;
1102 pcmcia_loop_tuple(p_dev, code, pcmcia_do_get_tuple, &get);
1103
1104 return get.len;
1105}
1106EXPORT_SYMBOL(pcmcia_get_tuple);
1107
1108
1109/**
1110 * pcmcia_do_get_mac() - internal helper for pcmcia_get_mac_from_cis()
1111 *
1112 * pcmcia_do_get_mac() is the internal callback for the call from
1113 * pcmcia_get_mac_from_cis() to pcmcia_loop_tuple(). We check whether the
1114 * tuple contains a proper LAN_NODE_ID of length 6, and copy the data
1115 * to struct net_device->dev_addr[i].
1116 */
1117static int pcmcia_do_get_mac(struct pcmcia_device *p_dev, tuple_t *tuple,
1118 void *priv)
1119{
1120 struct net_device *dev = priv;
1121 int i;
1122
1123 if (tuple->TupleData[0] != CISTPL_FUNCE_LAN_NODE_ID)
1124 return -EINVAL;
1125 if (tuple->TupleDataLen < ETH_ALEN + 2) {
1126 dev_warn(&p_dev->dev, "Invalid CIS tuple length for "
1127 "LAN_NODE_ID\n");
1128 return -EINVAL;
1129 }
1130
1131 if (tuple->TupleData[1] != ETH_ALEN) {
1132 dev_warn(&p_dev->dev, "Invalid header for LAN_NODE_ID\n");
1133 return -EINVAL;
1134 }
1135 for (i = 0; i < 6; i++)
1136 dev->dev_addr[i] = tuple->TupleData[i+2];
1137 return 0;
1138}
1139
1140/**
1141 * pcmcia_get_mac_from_cis() - read out MAC address from CISTPL_FUNCE
1142 * @p_dev: the struct pcmcia_device for which we want the address.
1143 * @dev: a properly prepared struct net_device to store the info to.
1144 *
1145 * pcmcia_get_mac_from_cis() reads out the hardware MAC address from
1146 * CISTPL_FUNCE and stores it into struct net_device *dev->dev_addr which
1147 * must be set up properly by the driver (see examples!).
1148 */
1149int pcmcia_get_mac_from_cis(struct pcmcia_device *p_dev, struct net_device *dev)
1150{
1151 return pcmcia_loop_tuple(p_dev, CISTPL_FUNCE, pcmcia_do_get_mac, dev);
1152}
1153EXPORT_SYMBOL(pcmcia_get_mac_from_cis);
1154
generated by cgit v1.2.2 (git 2.25.0) at 2025-12-24 06:48:08 -0500