Nicolas Pitre | b726126 | 2007-06-16 02:04:16 -0400 | [diff] [blame] | 1 | /* |
| 2 | * linux/drivers/mmc/core/sdio_cis.c |
| 3 | * |
| 4 | * Author: Nicolas Pitre |
| 5 | * Created: June 11, 2007 |
| 6 | * Copyright: MontaVista Software Inc. |
| 7 | * |
Nicolas Pitre | b1538bc | 2007-06-16 02:06:47 -0400 | [diff] [blame] | 8 | * Copyright 2007 Pierre Ossman |
| 9 | * |
Nicolas Pitre | b726126 | 2007-06-16 02:04:16 -0400 | [diff] [blame] | 10 | * This program is free software; you can redistribute it and/or modify |
| 11 | * it under the terms of the GNU General Public License as published by |
| 12 | * the Free Software Foundation; either version 2 of the License, or (at |
| 13 | * your option) any later version. |
| 14 | */ |
| 15 | |
| 16 | #include <linux/kernel.h> |
| 17 | |
| 18 | #include <linux/mmc/host.h> |
Pierre Ossman | 1a632f8 | 2007-07-30 15:15:30 +0200 | [diff] [blame] | 19 | #include <linux/mmc/card.h> |
Nicolas Pitre | b726126 | 2007-06-16 02:04:16 -0400 | [diff] [blame] | 20 | #include <linux/mmc/sdio.h> |
| 21 | #include <linux/mmc/sdio_func.h> |
| 22 | |
| 23 | #include "sdio_cis.h" |
| 24 | #include "sdio_ops.h" |
| 25 | |
Pierre Ossman | 759bdc7 | 2007-09-19 18:42:16 +0200 | [diff] [blame] | 26 | static int cistpl_vers_1(struct mmc_card *card, struct sdio_func *func, |
| 27 | const unsigned char *buf, unsigned size) |
| 28 | { |
| 29 | unsigned i, nr_strings; |
| 30 | char **buffer, *string; |
| 31 | |
David Vrabel | a1125b1 | 2009-10-07 16:32:33 -0700 | [diff] [blame] | 32 | /* Find all null-terminated (including zero length) strings in |
| 33 | the TPLLV1_INFO field. Trailing garbage is ignored. */ |
Pierre Ossman | 759bdc7 | 2007-09-19 18:42:16 +0200 | [diff] [blame] | 34 | buf += 2; |
| 35 | size -= 2; |
| 36 | |
| 37 | nr_strings = 0; |
| 38 | for (i = 0; i < size; i++) { |
| 39 | if (buf[i] == 0xff) |
| 40 | break; |
| 41 | if (buf[i] == 0) |
| 42 | nr_strings++; |
| 43 | } |
David Vrabel | a1125b1 | 2009-10-07 16:32:33 -0700 | [diff] [blame] | 44 | if (nr_strings == 0) |
Pierre Ossman | 759bdc7 | 2007-09-19 18:42:16 +0200 | [diff] [blame] | 45 | return 0; |
Pierre Ossman | 759bdc7 | 2007-09-19 18:42:16 +0200 | [diff] [blame] | 46 | |
| 47 | size = i; |
| 48 | |
| 49 | buffer = kzalloc(sizeof(char*) * nr_strings + size, GFP_KERNEL); |
| 50 | if (!buffer) |
| 51 | return -ENOMEM; |
| 52 | |
| 53 | string = (char*)(buffer + nr_strings); |
| 54 | |
| 55 | for (i = 0; i < nr_strings; i++) { |
| 56 | buffer[i] = string; |
| 57 | strcpy(string, buf); |
| 58 | string += strlen(string) + 1; |
| 59 | buf += strlen(buf) + 1; |
| 60 | } |
| 61 | |
| 62 | if (func) { |
| 63 | func->num_info = nr_strings; |
| 64 | func->info = (const char**)buffer; |
| 65 | } else { |
| 66 | card->num_info = nr_strings; |
| 67 | card->info = (const char**)buffer; |
| 68 | } |
| 69 | |
| 70 | return 0; |
| 71 | } |
| 72 | |
Pierre Ossman | 1a632f8 | 2007-07-30 15:15:30 +0200 | [diff] [blame] | 73 | static int cistpl_manfid(struct mmc_card *card, struct sdio_func *func, |
| 74 | const unsigned char *buf, unsigned size) |
Nicolas Pitre | b726126 | 2007-06-16 02:04:16 -0400 | [diff] [blame] | 75 | { |
Pierre Ossman | 1a632f8 | 2007-07-30 15:15:30 +0200 | [diff] [blame] | 76 | unsigned int vendor, device; |
| 77 | |
Nicolas Pitre | b726126 | 2007-06-16 02:04:16 -0400 | [diff] [blame] | 78 | /* TPLMID_MANF */ |
Pierre Ossman | 1a632f8 | 2007-07-30 15:15:30 +0200 | [diff] [blame] | 79 | vendor = buf[0] | (buf[1] << 8); |
Nicolas Pitre | b726126 | 2007-06-16 02:04:16 -0400 | [diff] [blame] | 80 | |
| 81 | /* TPLMID_CARD */ |
Pierre Ossman | 1a632f8 | 2007-07-30 15:15:30 +0200 | [diff] [blame] | 82 | device = buf[2] | (buf[3] << 8); |
| 83 | |
| 84 | if (func) { |
| 85 | func->vendor = vendor; |
| 86 | func->device = device; |
| 87 | } else { |
| 88 | card->cis.vendor = vendor; |
| 89 | card->cis.device = device; |
| 90 | } |
Nicolas Pitre | b726126 | 2007-06-16 02:04:16 -0400 | [diff] [blame] | 91 | |
| 92 | return 0; |
| 93 | } |
| 94 | |
Pierre Ossman | 1a632f8 | 2007-07-30 15:15:30 +0200 | [diff] [blame] | 95 | static const unsigned char speed_val[16] = |
| 96 | { 0, 10, 12, 13, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 70, 80 }; |
| 97 | static const unsigned int speed_unit[8] = |
| 98 | { 10000, 100000, 1000000, 10000000, 0, 0, 0, 0 }; |
| 99 | |
Albert Herranz | 4ec6496 | 2009-12-14 18:01:19 -0800 | [diff] [blame] | 100 | |
| 101 | typedef int (tpl_parse_t)(struct mmc_card *, struct sdio_func *, |
| 102 | const unsigned char *, unsigned); |
| 103 | |
| 104 | struct cis_tpl { |
| 105 | unsigned char code; |
| 106 | unsigned char min_size; |
| 107 | tpl_parse_t *parse; |
Albert Herranz | ed9935f4 | 2009-10-01 15:44:05 -0700 | [diff] [blame] | 108 | }; |
| 109 | |
Albert Herranz | 4ec6496 | 2009-12-14 18:01:19 -0800 | [diff] [blame] | 110 | static int cis_tpl_parse(struct mmc_card *card, struct sdio_func *func, |
| 111 | const char *tpl_descr, |
| 112 | const struct cis_tpl *tpl, int tpl_count, |
| 113 | unsigned char code, |
| 114 | const unsigned char *buf, unsigned size) |
Albert Herranz | ed9935f4 | 2009-10-01 15:44:05 -0700 | [diff] [blame] | 115 | { |
Albert Herranz | 4ec6496 | 2009-12-14 18:01:19 -0800 | [diff] [blame] | 116 | int i, ret; |
Albert Herranz | ed9935f4 | 2009-10-01 15:44:05 -0700 | [diff] [blame] | 117 | |
Albert Herranz | 4ec6496 | 2009-12-14 18:01:19 -0800 | [diff] [blame] | 118 | /* look for a matching code in the table */ |
| 119 | for (i = 0; i < tpl_count; i++, tpl++) { |
| 120 | if (tpl->code == code) |
| 121 | break; |
Albert Herranz | ed9935f4 | 2009-10-01 15:44:05 -0700 | [diff] [blame] | 122 | } |
Albert Herranz | 4ec6496 | 2009-12-14 18:01:19 -0800 | [diff] [blame] | 123 | if (i < tpl_count) { |
| 124 | if (size >= tpl->min_size) { |
| 125 | if (tpl->parse) |
| 126 | ret = tpl->parse(card, func, buf, size); |
| 127 | else |
| 128 | ret = -EILSEQ; /* known tuple, not parsed */ |
| 129 | } else { |
| 130 | /* invalid tuple */ |
| 131 | ret = -EINVAL; |
| 132 | } |
| 133 | if (ret && ret != -EILSEQ && ret != -ENOENT) { |
| 134 | printk(KERN_ERR "%s: bad %s tuple 0x%02x (%u bytes)\n", |
| 135 | mmc_hostname(card->host), tpl_descr, code, size); |
| 136 | } |
| 137 | } else { |
| 138 | /* unknown tuple */ |
| 139 | ret = -ENOENT; |
| 140 | } |
| 141 | |
| 142 | return ret; |
Albert Herranz | ed9935f4 | 2009-10-01 15:44:05 -0700 | [diff] [blame] | 143 | } |
| 144 | |
Albert Herranz | 4ec6496 | 2009-12-14 18:01:19 -0800 | [diff] [blame] | 145 | static int cistpl_funce_common(struct mmc_card *card, struct sdio_func *func, |
Pierre Ossman | 1a632f8 | 2007-07-30 15:15:30 +0200 | [diff] [blame] | 146 | const unsigned char *buf, unsigned size) |
| 147 | { |
Albert Herranz | 4ec6496 | 2009-12-14 18:01:19 -0800 | [diff] [blame] | 148 | /* Only valid for the common CIS (function 0) */ |
| 149 | if (func) |
Pierre Ossman | 1a632f8 | 2007-07-30 15:15:30 +0200 | [diff] [blame] | 150 | return -EINVAL; |
| 151 | |
| 152 | /* TPLFE_FN0_BLK_SIZE */ |
| 153 | card->cis.blksize = buf[1] | (buf[2] << 8); |
| 154 | |
| 155 | /* TPLFE_MAX_TRAN_SPEED */ |
| 156 | card->cis.max_dtr = speed_val[(buf[3] >> 3) & 15] * |
| 157 | speed_unit[buf[3] & 7]; |
| 158 | |
| 159 | return 0; |
| 160 | } |
| 161 | |
Albert Herranz | 4ec6496 | 2009-12-14 18:01:19 -0800 | [diff] [blame] | 162 | static int cistpl_funce_func(struct mmc_card *card, struct sdio_func *func, |
Pierre Ossman | 1a632f8 | 2007-07-30 15:15:30 +0200 | [diff] [blame] | 163 | const unsigned char *buf, unsigned size) |
| 164 | { |
| 165 | unsigned vsn; |
| 166 | unsigned min_size; |
| 167 | |
Albert Herranz | 4ec6496 | 2009-12-14 18:01:19 -0800 | [diff] [blame] | 168 | /* Only valid for the individual function's CIS (1-7) */ |
| 169 | if (!func) |
| 170 | return -EINVAL; |
Albert Herranz | ed9935f4 | 2009-10-01 15:44:05 -0700 | [diff] [blame] | 171 | |
Albert Herranz | 4ec6496 | 2009-12-14 18:01:19 -0800 | [diff] [blame] | 172 | /* |
| 173 | * This tuple has a different length depending on the SDIO spec |
| 174 | * version. |
| 175 | */ |
Pierre Ossman | 1a632f8 | 2007-07-30 15:15:30 +0200 | [diff] [blame] | 176 | vsn = func->card->cccr.sdio_vsn; |
| 177 | min_size = (vsn == SDIO_SDIO_REV_1_00) ? 28 : 42; |
| 178 | |
Albert Herranz | 4ec6496 | 2009-12-14 18:01:19 -0800 | [diff] [blame] | 179 | if (size < min_size) |
Pierre Ossman | 1a632f8 | 2007-07-30 15:15:30 +0200 | [diff] [blame] | 180 | return -EINVAL; |
| 181 | |
| 182 | /* TPLFE_MAX_BLK_SIZE */ |
David Vrabel | 9a08f82 | 2007-08-08 14:23:48 +0100 | [diff] [blame] | 183 | func->max_blksize = buf[12] | (buf[13] << 8); |
Pierre Ossman | 1a632f8 | 2007-07-30 15:15:30 +0200 | [diff] [blame] | 184 | |
Benzi Zbit | 62a7573 | 2008-07-10 02:41:43 +0300 | [diff] [blame] | 185 | /* TPLFE_ENABLE_TIMEOUT_VAL, present in ver 1.1 and above */ |
| 186 | if (vsn > SDIO_SDIO_REV_1_00) |
| 187 | func->enable_timeout = (buf[28] | (buf[29] << 8)) * 10; |
| 188 | else |
| 189 | func->enable_timeout = jiffies_to_msecs(HZ); |
| 190 | |
Pierre Ossman | 1a632f8 | 2007-07-30 15:15:30 +0200 | [diff] [blame] | 191 | return 0; |
| 192 | } |
| 193 | |
Albert Herranz | 4ec6496 | 2009-12-14 18:01:19 -0800 | [diff] [blame] | 194 | /* |
| 195 | * Known TPLFE_TYPEs table for CISTPL_FUNCE tuples. |
| 196 | * |
| 197 | * Note that, unlike PCMCIA, CISTPL_FUNCE tuples are not parsed depending |
| 198 | * on the TPLFID_FUNCTION value of the previous CISTPL_FUNCID as on SDIO |
| 199 | * TPLFID_FUNCTION is always hardcoded to 0x0C. |
| 200 | */ |
| 201 | static const struct cis_tpl cis_tpl_funce_list[] = { |
| 202 | { 0x00, 4, cistpl_funce_common }, |
| 203 | { 0x01, 0, cistpl_funce_func }, |
| 204 | { 0x04, 1+1+6, /* CISTPL_FUNCE_LAN_NODE_ID */ }, |
| 205 | }; |
| 206 | |
Pierre Ossman | 1a632f8 | 2007-07-30 15:15:30 +0200 | [diff] [blame] | 207 | static int cistpl_funce(struct mmc_card *card, struct sdio_func *func, |
| 208 | const unsigned char *buf, unsigned size) |
| 209 | { |
Albert Herranz | 4ec6496 | 2009-12-14 18:01:19 -0800 | [diff] [blame] | 210 | if (size < 1) |
| 211 | return -EINVAL; |
Pierre Ossman | 1a632f8 | 2007-07-30 15:15:30 +0200 | [diff] [blame] | 212 | |
Albert Herranz | 4ec6496 | 2009-12-14 18:01:19 -0800 | [diff] [blame] | 213 | return cis_tpl_parse(card, func, "CISTPL_FUNCE", |
| 214 | cis_tpl_funce_list, |
| 215 | ARRAY_SIZE(cis_tpl_funce_list), |
| 216 | buf[0], buf, size); |
Pierre Ossman | 1a632f8 | 2007-07-30 15:15:30 +0200 | [diff] [blame] | 217 | } |
| 218 | |
Albert Herranz | 4ec6496 | 2009-12-14 18:01:19 -0800 | [diff] [blame] | 219 | /* Known TPL_CODEs table for CIS tuples */ |
Nicolas Pitre | b726126 | 2007-06-16 02:04:16 -0400 | [diff] [blame] | 220 | static const struct cis_tpl cis_tpl_list[] = { |
Pierre Ossman | 759bdc7 | 2007-09-19 18:42:16 +0200 | [diff] [blame] | 221 | { 0x15, 3, cistpl_vers_1 }, |
Nicolas Pitre | b726126 | 2007-06-16 02:04:16 -0400 | [diff] [blame] | 222 | { 0x20, 4, cistpl_manfid }, |
| 223 | { 0x21, 2, /* cistpl_funcid */ }, |
Pierre Ossman | 1a632f8 | 2007-07-30 15:15:30 +0200 | [diff] [blame] | 224 | { 0x22, 0, cistpl_funce }, |
Nicolas Pitre | b726126 | 2007-06-16 02:04:16 -0400 | [diff] [blame] | 225 | }; |
| 226 | |
Pierre Ossman | 1a632f8 | 2007-07-30 15:15:30 +0200 | [diff] [blame] | 227 | static int sdio_read_cis(struct mmc_card *card, struct sdio_func *func) |
Nicolas Pitre | b726126 | 2007-06-16 02:04:16 -0400 | [diff] [blame] | 228 | { |
| 229 | int ret; |
Nicolas Pitre | b1538bc | 2007-06-16 02:06:47 -0400 | [diff] [blame] | 230 | struct sdio_func_tuple *this, **prev; |
Nicolas Pitre | b726126 | 2007-06-16 02:04:16 -0400 | [diff] [blame] | 231 | unsigned i, ptr = 0; |
| 232 | |
Pierre Ossman | 1a632f8 | 2007-07-30 15:15:30 +0200 | [diff] [blame] | 233 | /* |
| 234 | * Note that this works for the common CIS (function number 0) as |
| 235 | * well as a function's CIS * since SDIO_CCCR_CIS and SDIO_FBR_CIS |
| 236 | * have the same offset. |
| 237 | */ |
Nicolas Pitre | b726126 | 2007-06-16 02:04:16 -0400 | [diff] [blame] | 238 | for (i = 0; i < 3; i++) { |
Pierre Ossman | 1a632f8 | 2007-07-30 15:15:30 +0200 | [diff] [blame] | 239 | unsigned char x, fn; |
| 240 | |
| 241 | if (func) |
| 242 | fn = func->num; |
| 243 | else |
| 244 | fn = 0; |
| 245 | |
| 246 | ret = mmc_io_rw_direct(card, 0, 0, |
David Vrabel | 7616ee9 | 2007-08-08 14:23:05 +0100 | [diff] [blame] | 247 | SDIO_FBR_BASE(fn) + SDIO_FBR_CIS + i, 0, &x); |
Nicolas Pitre | b726126 | 2007-06-16 02:04:16 -0400 | [diff] [blame] | 248 | if (ret) |
| 249 | return ret; |
| 250 | ptr |= x << (i * 8); |
| 251 | } |
| 252 | |
Pierre Ossman | 1a632f8 | 2007-07-30 15:15:30 +0200 | [diff] [blame] | 253 | if (func) |
| 254 | prev = &func->tuples; |
| 255 | else |
| 256 | prev = &card->tuples; |
| 257 | |
| 258 | BUG_ON(*prev); |
Nicolas Pitre | b726126 | 2007-06-16 02:04:16 -0400 | [diff] [blame] | 259 | |
| 260 | do { |
| 261 | unsigned char tpl_code, tpl_link; |
Nicolas Pitre | b726126 | 2007-06-16 02:04:16 -0400 | [diff] [blame] | 262 | |
Pierre Ossman | 1a632f8 | 2007-07-30 15:15:30 +0200 | [diff] [blame] | 263 | ret = mmc_io_rw_direct(card, 0, 0, ptr++, 0, &tpl_code); |
Nicolas Pitre | b726126 | 2007-06-16 02:04:16 -0400 | [diff] [blame] | 264 | if (ret) |
| 265 | break; |
| 266 | |
| 267 | /* 0xff means we're done */ |
| 268 | if (tpl_code == 0xff) |
| 269 | break; |
| 270 | |
Pierre Ossman | c8d718f | 2009-03-05 19:38:38 +0100 | [diff] [blame] | 271 | /* null entries have no link field or data */ |
| 272 | if (tpl_code == 0x00) |
| 273 | continue; |
| 274 | |
Pierre Ossman | 1a632f8 | 2007-07-30 15:15:30 +0200 | [diff] [blame] | 275 | ret = mmc_io_rw_direct(card, 0, 0, ptr++, 0, &tpl_link); |
Nicolas Pitre | b726126 | 2007-06-16 02:04:16 -0400 | [diff] [blame] | 276 | if (ret) |
| 277 | break; |
| 278 | |
Pierre Ossman | 0d6132b | 2009-03-05 19:37:28 +0100 | [diff] [blame] | 279 | /* a size of 0xff also means we're done */ |
| 280 | if (tpl_link == 0xff) |
| 281 | break; |
| 282 | |
Nicolas Pitre | b1538bc | 2007-06-16 02:06:47 -0400 | [diff] [blame] | 283 | this = kmalloc(sizeof(*this) + tpl_link, GFP_KERNEL); |
| 284 | if (!this) |
| 285 | return -ENOMEM; |
| 286 | |
| 287 | for (i = 0; i < tpl_link; i++) { |
Pierre Ossman | 1a632f8 | 2007-07-30 15:15:30 +0200 | [diff] [blame] | 288 | ret = mmc_io_rw_direct(card, 0, 0, |
Nicolas Pitre | b1538bc | 2007-06-16 02:06:47 -0400 | [diff] [blame] | 289 | ptr + i, 0, &this->data[i]); |
| 290 | if (ret) |
| 291 | break; |
| 292 | } |
| 293 | if (ret) { |
| 294 | kfree(this); |
| 295 | break; |
| 296 | } |
| 297 | |
Albert Herranz | 4ec6496 | 2009-12-14 18:01:19 -0800 | [diff] [blame] | 298 | /* Try to parse the CIS tuple */ |
| 299 | ret = cis_tpl_parse(card, func, "CIS", |
| 300 | cis_tpl_list, ARRAY_SIZE(cis_tpl_list), |
| 301 | tpl_code, this->data, tpl_link); |
| 302 | if (ret == -EILSEQ || ret == -ENOENT) { |
Albert Herranz | ed9935f4 | 2009-10-01 15:44:05 -0700 | [diff] [blame] | 303 | /* |
Albert Herranz | 4ec6496 | 2009-12-14 18:01:19 -0800 | [diff] [blame] | 304 | * The tuple is unknown or known but not parsed. |
| 305 | * Queue the tuple for the function driver. |
Albert Herranz | ed9935f4 | 2009-10-01 15:44:05 -0700 | [diff] [blame] | 306 | */ |
Nicolas Pitre | b1538bc | 2007-06-16 02:06:47 -0400 | [diff] [blame] | 307 | this->next = NULL; |
| 308 | this->code = tpl_code; |
| 309 | this->size = tpl_link; |
| 310 | *prev = this; |
| 311 | prev = &this->next; |
Albert Herranz | 4ec6496 | 2009-12-14 18:01:19 -0800 | [diff] [blame] | 312 | |
| 313 | if (ret == -ENOENT) { |
| 314 | /* warn about unknown tuples */ |
| 315 | printk(KERN_WARNING "%s: queuing unknown" |
| 316 | " CIS tuple 0x%02x (%u bytes)\n", |
| 317 | mmc_hostname(card->host), |
| 318 | tpl_code, tpl_link); |
| 319 | } |
| 320 | |
Albert Herranz | ed9935f4 | 2009-10-01 15:44:05 -0700 | [diff] [blame] | 321 | /* keep on analyzing tuples */ |
| 322 | ret = 0; |
Albert Herranz | 4ec6496 | 2009-12-14 18:01:19 -0800 | [diff] [blame] | 323 | } else { |
| 324 | /* |
| 325 | * We don't need the tuple anymore if it was |
| 326 | * successfully parsed by the SDIO core or if it is |
| 327 | * not going to be queued for a driver. |
| 328 | */ |
| 329 | kfree(this); |
Nicolas Pitre | b726126 | 2007-06-16 02:04:16 -0400 | [diff] [blame] | 330 | } |
| 331 | |
Nicolas Pitre | b726126 | 2007-06-16 02:04:16 -0400 | [diff] [blame] | 332 | ptr += tpl_link; |
Nicolas Pitre | b726126 | 2007-06-16 02:04:16 -0400 | [diff] [blame] | 333 | } while (!ret); |
| 334 | |
Pierre Ossman | 1a632f8 | 2007-07-30 15:15:30 +0200 | [diff] [blame] | 335 | /* |
| 336 | * Link in all unknown tuples found in the common CIS so that |
| 337 | * drivers don't have to go digging in two places. |
| 338 | */ |
| 339 | if (func) |
| 340 | *prev = card->tuples; |
| 341 | |
Nicolas Pitre | b726126 | 2007-06-16 02:04:16 -0400 | [diff] [blame] | 342 | return ret; |
| 343 | } |
Nicolas Pitre | b1538bc | 2007-06-16 02:06:47 -0400 | [diff] [blame] | 344 | |
Pierre Ossman | 1a632f8 | 2007-07-30 15:15:30 +0200 | [diff] [blame] | 345 | int sdio_read_common_cis(struct mmc_card *card) |
| 346 | { |
| 347 | return sdio_read_cis(card, NULL); |
| 348 | } |
| 349 | |
| 350 | void sdio_free_common_cis(struct mmc_card *card) |
Nicolas Pitre | b1538bc | 2007-06-16 02:06:47 -0400 | [diff] [blame] | 351 | { |
| 352 | struct sdio_func_tuple *tuple, *victim; |
| 353 | |
Pierre Ossman | 1a632f8 | 2007-07-30 15:15:30 +0200 | [diff] [blame] | 354 | tuple = card->tuples; |
Nicolas Pitre | b1538bc | 2007-06-16 02:06:47 -0400 | [diff] [blame] | 355 | |
| 356 | while (tuple) { |
| 357 | victim = tuple; |
| 358 | tuple = tuple->next; |
| 359 | kfree(victim); |
| 360 | } |
| 361 | |
Pierre Ossman | 1a632f8 | 2007-07-30 15:15:30 +0200 | [diff] [blame] | 362 | card->tuples = NULL; |
| 363 | } |
| 364 | |
| 365 | int sdio_read_func_cis(struct sdio_func *func) |
| 366 | { |
| 367 | int ret; |
| 368 | |
| 369 | ret = sdio_read_cis(func->card, func); |
| 370 | if (ret) |
| 371 | return ret; |
| 372 | |
| 373 | /* |
| 374 | * Since we've linked to tuples in the card structure, |
| 375 | * we must make sure we have a reference to it. |
| 376 | */ |
| 377 | get_device(&func->card->dev); |
| 378 | |
| 379 | /* |
| 380 | * Vendor/device id is optional for function CIS, so |
| 381 | * copy it from the card structure as needed. |
| 382 | */ |
| 383 | if (func->vendor == 0) { |
| 384 | func->vendor = func->card->cis.vendor; |
| 385 | func->device = func->card->cis.device; |
| 386 | } |
| 387 | |
| 388 | return 0; |
| 389 | } |
| 390 | |
| 391 | void sdio_free_func_cis(struct sdio_func *func) |
| 392 | { |
| 393 | struct sdio_func_tuple *tuple, *victim; |
| 394 | |
| 395 | tuple = func->tuples; |
| 396 | |
| 397 | while (tuple && tuple != func->card->tuples) { |
| 398 | victim = tuple; |
| 399 | tuple = tuple->next; |
| 400 | kfree(victim); |
| 401 | } |
| 402 | |
Nicolas Pitre | b1538bc | 2007-06-16 02:06:47 -0400 | [diff] [blame] | 403 | func->tuples = NULL; |
Pierre Ossman | 1a632f8 | 2007-07-30 15:15:30 +0200 | [diff] [blame] | 404 | |
| 405 | /* |
| 406 | * We have now removed the link to the tuples in the |
| 407 | * card structure, so remove the reference. |
| 408 | */ |
| 409 | put_device(&func->card->dev); |
Nicolas Pitre | b1538bc | 2007-06-16 02:06:47 -0400 | [diff] [blame] | 410 | } |
| 411 | |