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> |
Tejun Heo | 5a0e3ad | 2010-03-24 17:04:11 +0900 | [diff] [blame^] | 17 | #include <linux/slab.h> |
Nicolas Pitre | b726126 | 2007-06-16 02:04:16 -0400 | [diff] [blame] | 18 | |
| 19 | #include <linux/mmc/host.h> |
Pierre Ossman | 1a632f8 | 2007-07-30 15:15:30 +0200 | [diff] [blame] | 20 | #include <linux/mmc/card.h> |
Nicolas Pitre | b726126 | 2007-06-16 02:04:16 -0400 | [diff] [blame] | 21 | #include <linux/mmc/sdio.h> |
| 22 | #include <linux/mmc/sdio_func.h> |
| 23 | |
| 24 | #include "sdio_cis.h" |
| 25 | #include "sdio_ops.h" |
| 26 | |
Pierre Ossman | 759bdc7 | 2007-09-19 18:42:16 +0200 | [diff] [blame] | 27 | static int cistpl_vers_1(struct mmc_card *card, struct sdio_func *func, |
| 28 | const unsigned char *buf, unsigned size) |
| 29 | { |
| 30 | unsigned i, nr_strings; |
| 31 | char **buffer, *string; |
| 32 | |
David Vrabel | a1125b1 | 2009-10-07 16:32:33 -0700 | [diff] [blame] | 33 | /* Find all null-terminated (including zero length) strings in |
| 34 | the TPLLV1_INFO field. Trailing garbage is ignored. */ |
Pierre Ossman | 759bdc7 | 2007-09-19 18:42:16 +0200 | [diff] [blame] | 35 | buf += 2; |
| 36 | size -= 2; |
| 37 | |
| 38 | nr_strings = 0; |
| 39 | for (i = 0; i < size; i++) { |
| 40 | if (buf[i] == 0xff) |
| 41 | break; |
| 42 | if (buf[i] == 0) |
| 43 | nr_strings++; |
| 44 | } |
David Vrabel | a1125b1 | 2009-10-07 16:32:33 -0700 | [diff] [blame] | 45 | if (nr_strings == 0) |
Pierre Ossman | 759bdc7 | 2007-09-19 18:42:16 +0200 | [diff] [blame] | 46 | return 0; |
Pierre Ossman | 759bdc7 | 2007-09-19 18:42:16 +0200 | [diff] [blame] | 47 | |
| 48 | size = i; |
| 49 | |
| 50 | buffer = kzalloc(sizeof(char*) * nr_strings + size, GFP_KERNEL); |
| 51 | if (!buffer) |
| 52 | return -ENOMEM; |
| 53 | |
| 54 | string = (char*)(buffer + nr_strings); |
| 55 | |
| 56 | for (i = 0; i < nr_strings; i++) { |
| 57 | buffer[i] = string; |
| 58 | strcpy(string, buf); |
| 59 | string += strlen(string) + 1; |
| 60 | buf += strlen(buf) + 1; |
| 61 | } |
| 62 | |
| 63 | if (func) { |
| 64 | func->num_info = nr_strings; |
| 65 | func->info = (const char**)buffer; |
| 66 | } else { |
| 67 | card->num_info = nr_strings; |
| 68 | card->info = (const char**)buffer; |
| 69 | } |
| 70 | |
| 71 | return 0; |
| 72 | } |
| 73 | |
Pierre Ossman | 1a632f8 | 2007-07-30 15:15:30 +0200 | [diff] [blame] | 74 | static int cistpl_manfid(struct mmc_card *card, struct sdio_func *func, |
| 75 | const unsigned char *buf, unsigned size) |
Nicolas Pitre | b726126 | 2007-06-16 02:04:16 -0400 | [diff] [blame] | 76 | { |
Pierre Ossman | 1a632f8 | 2007-07-30 15:15:30 +0200 | [diff] [blame] | 77 | unsigned int vendor, device; |
| 78 | |
Nicolas Pitre | b726126 | 2007-06-16 02:04:16 -0400 | [diff] [blame] | 79 | /* TPLMID_MANF */ |
Pierre Ossman | 1a632f8 | 2007-07-30 15:15:30 +0200 | [diff] [blame] | 80 | vendor = buf[0] | (buf[1] << 8); |
Nicolas Pitre | b726126 | 2007-06-16 02:04:16 -0400 | [diff] [blame] | 81 | |
| 82 | /* TPLMID_CARD */ |
Pierre Ossman | 1a632f8 | 2007-07-30 15:15:30 +0200 | [diff] [blame] | 83 | device = buf[2] | (buf[3] << 8); |
| 84 | |
| 85 | if (func) { |
| 86 | func->vendor = vendor; |
| 87 | func->device = device; |
| 88 | } else { |
| 89 | card->cis.vendor = vendor; |
| 90 | card->cis.device = device; |
| 91 | } |
Nicolas Pitre | b726126 | 2007-06-16 02:04:16 -0400 | [diff] [blame] | 92 | |
| 93 | return 0; |
| 94 | } |
| 95 | |
Pierre Ossman | 1a632f8 | 2007-07-30 15:15:30 +0200 | [diff] [blame] | 96 | static const unsigned char speed_val[16] = |
| 97 | { 0, 10, 12, 13, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 70, 80 }; |
| 98 | static const unsigned int speed_unit[8] = |
| 99 | { 10000, 100000, 1000000, 10000000, 0, 0, 0, 0 }; |
| 100 | |
Albert Herranz | 4ec6496 | 2009-12-14 18:01:19 -0800 | [diff] [blame] | 101 | |
| 102 | typedef int (tpl_parse_t)(struct mmc_card *, struct sdio_func *, |
| 103 | const unsigned char *, unsigned); |
| 104 | |
| 105 | struct cis_tpl { |
| 106 | unsigned char code; |
| 107 | unsigned char min_size; |
| 108 | tpl_parse_t *parse; |
Albert Herranz | ed9935f4 | 2009-10-01 15:44:05 -0700 | [diff] [blame] | 109 | }; |
| 110 | |
Albert Herranz | 4ec6496 | 2009-12-14 18:01:19 -0800 | [diff] [blame] | 111 | static int cis_tpl_parse(struct mmc_card *card, struct sdio_func *func, |
| 112 | const char *tpl_descr, |
| 113 | const struct cis_tpl *tpl, int tpl_count, |
| 114 | unsigned char code, |
| 115 | const unsigned char *buf, unsigned size) |
Albert Herranz | ed9935f4 | 2009-10-01 15:44:05 -0700 | [diff] [blame] | 116 | { |
Albert Herranz | 4ec6496 | 2009-12-14 18:01:19 -0800 | [diff] [blame] | 117 | int i, ret; |
Albert Herranz | ed9935f4 | 2009-10-01 15:44:05 -0700 | [diff] [blame] | 118 | |
Albert Herranz | 4ec6496 | 2009-12-14 18:01:19 -0800 | [diff] [blame] | 119 | /* look for a matching code in the table */ |
| 120 | for (i = 0; i < tpl_count; i++, tpl++) { |
| 121 | if (tpl->code == code) |
| 122 | break; |
Albert Herranz | ed9935f4 | 2009-10-01 15:44:05 -0700 | [diff] [blame] | 123 | } |
Albert Herranz | 4ec6496 | 2009-12-14 18:01:19 -0800 | [diff] [blame] | 124 | if (i < tpl_count) { |
| 125 | if (size >= tpl->min_size) { |
| 126 | if (tpl->parse) |
| 127 | ret = tpl->parse(card, func, buf, size); |
| 128 | else |
| 129 | ret = -EILSEQ; /* known tuple, not parsed */ |
| 130 | } else { |
| 131 | /* invalid tuple */ |
| 132 | ret = -EINVAL; |
| 133 | } |
| 134 | if (ret && ret != -EILSEQ && ret != -ENOENT) { |
| 135 | printk(KERN_ERR "%s: bad %s tuple 0x%02x (%u bytes)\n", |
| 136 | mmc_hostname(card->host), tpl_descr, code, size); |
| 137 | } |
| 138 | } else { |
| 139 | /* unknown tuple */ |
| 140 | ret = -ENOENT; |
| 141 | } |
| 142 | |
| 143 | return ret; |
Albert Herranz | ed9935f4 | 2009-10-01 15:44:05 -0700 | [diff] [blame] | 144 | } |
| 145 | |
Albert Herranz | 4ec6496 | 2009-12-14 18:01:19 -0800 | [diff] [blame] | 146 | 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] | 147 | const unsigned char *buf, unsigned size) |
| 148 | { |
Albert Herranz | 4ec6496 | 2009-12-14 18:01:19 -0800 | [diff] [blame] | 149 | /* Only valid for the common CIS (function 0) */ |
| 150 | if (func) |
Pierre Ossman | 1a632f8 | 2007-07-30 15:15:30 +0200 | [diff] [blame] | 151 | return -EINVAL; |
| 152 | |
| 153 | /* TPLFE_FN0_BLK_SIZE */ |
| 154 | card->cis.blksize = buf[1] | (buf[2] << 8); |
| 155 | |
| 156 | /* TPLFE_MAX_TRAN_SPEED */ |
| 157 | card->cis.max_dtr = speed_val[(buf[3] >> 3) & 15] * |
| 158 | speed_unit[buf[3] & 7]; |
| 159 | |
| 160 | return 0; |
| 161 | } |
| 162 | |
Albert Herranz | 4ec6496 | 2009-12-14 18:01:19 -0800 | [diff] [blame] | 163 | 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] | 164 | const unsigned char *buf, unsigned size) |
| 165 | { |
| 166 | unsigned vsn; |
| 167 | unsigned min_size; |
| 168 | |
Albert Herranz | 4ec6496 | 2009-12-14 18:01:19 -0800 | [diff] [blame] | 169 | /* Only valid for the individual function's CIS (1-7) */ |
| 170 | if (!func) |
| 171 | return -EINVAL; |
Albert Herranz | ed9935f4 | 2009-10-01 15:44:05 -0700 | [diff] [blame] | 172 | |
Albert Herranz | 4ec6496 | 2009-12-14 18:01:19 -0800 | [diff] [blame] | 173 | /* |
| 174 | * This tuple has a different length depending on the SDIO spec |
| 175 | * version. |
| 176 | */ |
Pierre Ossman | 1a632f8 | 2007-07-30 15:15:30 +0200 | [diff] [blame] | 177 | vsn = func->card->cccr.sdio_vsn; |
| 178 | min_size = (vsn == SDIO_SDIO_REV_1_00) ? 28 : 42; |
| 179 | |
Albert Herranz | 4ec6496 | 2009-12-14 18:01:19 -0800 | [diff] [blame] | 180 | if (size < min_size) |
Pierre Ossman | 1a632f8 | 2007-07-30 15:15:30 +0200 | [diff] [blame] | 181 | return -EINVAL; |
| 182 | |
| 183 | /* TPLFE_MAX_BLK_SIZE */ |
David Vrabel | 9a08f82 | 2007-08-08 14:23:48 +0100 | [diff] [blame] | 184 | func->max_blksize = buf[12] | (buf[13] << 8); |
Pierre Ossman | 1a632f8 | 2007-07-30 15:15:30 +0200 | [diff] [blame] | 185 | |
Benzi Zbit | 62a7573 | 2008-07-10 02:41:43 +0300 | [diff] [blame] | 186 | /* TPLFE_ENABLE_TIMEOUT_VAL, present in ver 1.1 and above */ |
| 187 | if (vsn > SDIO_SDIO_REV_1_00) |
| 188 | func->enable_timeout = (buf[28] | (buf[29] << 8)) * 10; |
| 189 | else |
| 190 | func->enable_timeout = jiffies_to_msecs(HZ); |
| 191 | |
Pierre Ossman | 1a632f8 | 2007-07-30 15:15:30 +0200 | [diff] [blame] | 192 | return 0; |
| 193 | } |
| 194 | |
Albert Herranz | 4ec6496 | 2009-12-14 18:01:19 -0800 | [diff] [blame] | 195 | /* |
| 196 | * Known TPLFE_TYPEs table for CISTPL_FUNCE tuples. |
| 197 | * |
| 198 | * Note that, unlike PCMCIA, CISTPL_FUNCE tuples are not parsed depending |
| 199 | * on the TPLFID_FUNCTION value of the previous CISTPL_FUNCID as on SDIO |
| 200 | * TPLFID_FUNCTION is always hardcoded to 0x0C. |
| 201 | */ |
| 202 | static const struct cis_tpl cis_tpl_funce_list[] = { |
| 203 | { 0x00, 4, cistpl_funce_common }, |
| 204 | { 0x01, 0, cistpl_funce_func }, |
| 205 | { 0x04, 1+1+6, /* CISTPL_FUNCE_LAN_NODE_ID */ }, |
| 206 | }; |
| 207 | |
Pierre Ossman | 1a632f8 | 2007-07-30 15:15:30 +0200 | [diff] [blame] | 208 | static int cistpl_funce(struct mmc_card *card, struct sdio_func *func, |
| 209 | const unsigned char *buf, unsigned size) |
| 210 | { |
Albert Herranz | 4ec6496 | 2009-12-14 18:01:19 -0800 | [diff] [blame] | 211 | if (size < 1) |
| 212 | return -EINVAL; |
Pierre Ossman | 1a632f8 | 2007-07-30 15:15:30 +0200 | [diff] [blame] | 213 | |
Albert Herranz | 4ec6496 | 2009-12-14 18:01:19 -0800 | [diff] [blame] | 214 | return cis_tpl_parse(card, func, "CISTPL_FUNCE", |
| 215 | cis_tpl_funce_list, |
| 216 | ARRAY_SIZE(cis_tpl_funce_list), |
| 217 | buf[0], buf, size); |
Pierre Ossman | 1a632f8 | 2007-07-30 15:15:30 +0200 | [diff] [blame] | 218 | } |
| 219 | |
Albert Herranz | 4ec6496 | 2009-12-14 18:01:19 -0800 | [diff] [blame] | 220 | /* Known TPL_CODEs table for CIS tuples */ |
Nicolas Pitre | b726126 | 2007-06-16 02:04:16 -0400 | [diff] [blame] | 221 | static const struct cis_tpl cis_tpl_list[] = { |
Pierre Ossman | 759bdc7 | 2007-09-19 18:42:16 +0200 | [diff] [blame] | 222 | { 0x15, 3, cistpl_vers_1 }, |
Nicolas Pitre | b726126 | 2007-06-16 02:04:16 -0400 | [diff] [blame] | 223 | { 0x20, 4, cistpl_manfid }, |
| 224 | { 0x21, 2, /* cistpl_funcid */ }, |
Pierre Ossman | 1a632f8 | 2007-07-30 15:15:30 +0200 | [diff] [blame] | 225 | { 0x22, 0, cistpl_funce }, |
Nicolas Pitre | b726126 | 2007-06-16 02:04:16 -0400 | [diff] [blame] | 226 | }; |
| 227 | |
Pierre Ossman | 1a632f8 | 2007-07-30 15:15:30 +0200 | [diff] [blame] | 228 | 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] | 229 | { |
| 230 | int ret; |
Nicolas Pitre | b1538bc | 2007-06-16 02:06:47 -0400 | [diff] [blame] | 231 | struct sdio_func_tuple *this, **prev; |
Nicolas Pitre | b726126 | 2007-06-16 02:04:16 -0400 | [diff] [blame] | 232 | unsigned i, ptr = 0; |
| 233 | |
Pierre Ossman | 1a632f8 | 2007-07-30 15:15:30 +0200 | [diff] [blame] | 234 | /* |
| 235 | * Note that this works for the common CIS (function number 0) as |
| 236 | * well as a function's CIS * since SDIO_CCCR_CIS and SDIO_FBR_CIS |
| 237 | * have the same offset. |
| 238 | */ |
Nicolas Pitre | b726126 | 2007-06-16 02:04:16 -0400 | [diff] [blame] | 239 | for (i = 0; i < 3; i++) { |
Pierre Ossman | 1a632f8 | 2007-07-30 15:15:30 +0200 | [diff] [blame] | 240 | unsigned char x, fn; |
| 241 | |
| 242 | if (func) |
| 243 | fn = func->num; |
| 244 | else |
| 245 | fn = 0; |
| 246 | |
| 247 | ret = mmc_io_rw_direct(card, 0, 0, |
David Vrabel | 7616ee9 | 2007-08-08 14:23:05 +0100 | [diff] [blame] | 248 | SDIO_FBR_BASE(fn) + SDIO_FBR_CIS + i, 0, &x); |
Nicolas Pitre | b726126 | 2007-06-16 02:04:16 -0400 | [diff] [blame] | 249 | if (ret) |
| 250 | return ret; |
| 251 | ptr |= x << (i * 8); |
| 252 | } |
| 253 | |
Pierre Ossman | 1a632f8 | 2007-07-30 15:15:30 +0200 | [diff] [blame] | 254 | if (func) |
| 255 | prev = &func->tuples; |
| 256 | else |
| 257 | prev = &card->tuples; |
| 258 | |
| 259 | BUG_ON(*prev); |
Nicolas Pitre | b726126 | 2007-06-16 02:04:16 -0400 | [diff] [blame] | 260 | |
| 261 | do { |
| 262 | unsigned char tpl_code, tpl_link; |
Nicolas Pitre | b726126 | 2007-06-16 02:04:16 -0400 | [diff] [blame] | 263 | |
Pierre Ossman | 1a632f8 | 2007-07-30 15:15:30 +0200 | [diff] [blame] | 264 | ret = mmc_io_rw_direct(card, 0, 0, ptr++, 0, &tpl_code); |
Nicolas Pitre | b726126 | 2007-06-16 02:04:16 -0400 | [diff] [blame] | 265 | if (ret) |
| 266 | break; |
| 267 | |
| 268 | /* 0xff means we're done */ |
| 269 | if (tpl_code == 0xff) |
| 270 | break; |
| 271 | |
Pierre Ossman | c8d718f | 2009-03-05 19:38:38 +0100 | [diff] [blame] | 272 | /* null entries have no link field or data */ |
| 273 | if (tpl_code == 0x00) |
| 274 | continue; |
| 275 | |
Pierre Ossman | 1a632f8 | 2007-07-30 15:15:30 +0200 | [diff] [blame] | 276 | ret = mmc_io_rw_direct(card, 0, 0, ptr++, 0, &tpl_link); |
Nicolas Pitre | b726126 | 2007-06-16 02:04:16 -0400 | [diff] [blame] | 277 | if (ret) |
| 278 | break; |
| 279 | |
Pierre Ossman | 0d6132b | 2009-03-05 19:37:28 +0100 | [diff] [blame] | 280 | /* a size of 0xff also means we're done */ |
| 281 | if (tpl_link == 0xff) |
| 282 | break; |
| 283 | |
Nicolas Pitre | b1538bc | 2007-06-16 02:06:47 -0400 | [diff] [blame] | 284 | this = kmalloc(sizeof(*this) + tpl_link, GFP_KERNEL); |
| 285 | if (!this) |
| 286 | return -ENOMEM; |
| 287 | |
| 288 | for (i = 0; i < tpl_link; i++) { |
Pierre Ossman | 1a632f8 | 2007-07-30 15:15:30 +0200 | [diff] [blame] | 289 | ret = mmc_io_rw_direct(card, 0, 0, |
Nicolas Pitre | b1538bc | 2007-06-16 02:06:47 -0400 | [diff] [blame] | 290 | ptr + i, 0, &this->data[i]); |
| 291 | if (ret) |
| 292 | break; |
| 293 | } |
| 294 | if (ret) { |
| 295 | kfree(this); |
| 296 | break; |
| 297 | } |
| 298 | |
Albert Herranz | 4ec6496 | 2009-12-14 18:01:19 -0800 | [diff] [blame] | 299 | /* Try to parse the CIS tuple */ |
| 300 | ret = cis_tpl_parse(card, func, "CIS", |
| 301 | cis_tpl_list, ARRAY_SIZE(cis_tpl_list), |
| 302 | tpl_code, this->data, tpl_link); |
| 303 | if (ret == -EILSEQ || ret == -ENOENT) { |
Albert Herranz | ed9935f4 | 2009-10-01 15:44:05 -0700 | [diff] [blame] | 304 | /* |
Albert Herranz | 4ec6496 | 2009-12-14 18:01:19 -0800 | [diff] [blame] | 305 | * The tuple is unknown or known but not parsed. |
| 306 | * Queue the tuple for the function driver. |
Albert Herranz | ed9935f4 | 2009-10-01 15:44:05 -0700 | [diff] [blame] | 307 | */ |
Nicolas Pitre | b1538bc | 2007-06-16 02:06:47 -0400 | [diff] [blame] | 308 | this->next = NULL; |
| 309 | this->code = tpl_code; |
| 310 | this->size = tpl_link; |
| 311 | *prev = this; |
| 312 | prev = &this->next; |
Albert Herranz | 4ec6496 | 2009-12-14 18:01:19 -0800 | [diff] [blame] | 313 | |
| 314 | if (ret == -ENOENT) { |
| 315 | /* warn about unknown tuples */ |
| 316 | printk(KERN_WARNING "%s: queuing unknown" |
| 317 | " CIS tuple 0x%02x (%u bytes)\n", |
| 318 | mmc_hostname(card->host), |
| 319 | tpl_code, tpl_link); |
| 320 | } |
| 321 | |
Albert Herranz | ed9935f4 | 2009-10-01 15:44:05 -0700 | [diff] [blame] | 322 | /* keep on analyzing tuples */ |
| 323 | ret = 0; |
Albert Herranz | 4ec6496 | 2009-12-14 18:01:19 -0800 | [diff] [blame] | 324 | } else { |
| 325 | /* |
| 326 | * We don't need the tuple anymore if it was |
| 327 | * successfully parsed by the SDIO core or if it is |
| 328 | * not going to be queued for a driver. |
| 329 | */ |
| 330 | kfree(this); |
Nicolas Pitre | b726126 | 2007-06-16 02:04:16 -0400 | [diff] [blame] | 331 | } |
| 332 | |
Nicolas Pitre | b726126 | 2007-06-16 02:04:16 -0400 | [diff] [blame] | 333 | ptr += tpl_link; |
Nicolas Pitre | b726126 | 2007-06-16 02:04:16 -0400 | [diff] [blame] | 334 | } while (!ret); |
| 335 | |
Pierre Ossman | 1a632f8 | 2007-07-30 15:15:30 +0200 | [diff] [blame] | 336 | /* |
| 337 | * Link in all unknown tuples found in the common CIS so that |
| 338 | * drivers don't have to go digging in two places. |
| 339 | */ |
| 340 | if (func) |
| 341 | *prev = card->tuples; |
| 342 | |
Nicolas Pitre | b726126 | 2007-06-16 02:04:16 -0400 | [diff] [blame] | 343 | return ret; |
| 344 | } |
Nicolas Pitre | b1538bc | 2007-06-16 02:06:47 -0400 | [diff] [blame] | 345 | |
Pierre Ossman | 1a632f8 | 2007-07-30 15:15:30 +0200 | [diff] [blame] | 346 | int sdio_read_common_cis(struct mmc_card *card) |
| 347 | { |
| 348 | return sdio_read_cis(card, NULL); |
| 349 | } |
| 350 | |
| 351 | void sdio_free_common_cis(struct mmc_card *card) |
Nicolas Pitre | b1538bc | 2007-06-16 02:06:47 -0400 | [diff] [blame] | 352 | { |
| 353 | struct sdio_func_tuple *tuple, *victim; |
| 354 | |
Pierre Ossman | 1a632f8 | 2007-07-30 15:15:30 +0200 | [diff] [blame] | 355 | tuple = card->tuples; |
Nicolas Pitre | b1538bc | 2007-06-16 02:06:47 -0400 | [diff] [blame] | 356 | |
| 357 | while (tuple) { |
| 358 | victim = tuple; |
| 359 | tuple = tuple->next; |
| 360 | kfree(victim); |
| 361 | } |
| 362 | |
Pierre Ossman | 1a632f8 | 2007-07-30 15:15:30 +0200 | [diff] [blame] | 363 | card->tuples = NULL; |
| 364 | } |
| 365 | |
| 366 | int sdio_read_func_cis(struct sdio_func *func) |
| 367 | { |
| 368 | int ret; |
| 369 | |
| 370 | ret = sdio_read_cis(func->card, func); |
| 371 | if (ret) |
| 372 | return ret; |
| 373 | |
| 374 | /* |
| 375 | * Since we've linked to tuples in the card structure, |
| 376 | * we must make sure we have a reference to it. |
| 377 | */ |
| 378 | get_device(&func->card->dev); |
| 379 | |
| 380 | /* |
| 381 | * Vendor/device id is optional for function CIS, so |
| 382 | * copy it from the card structure as needed. |
| 383 | */ |
| 384 | if (func->vendor == 0) { |
| 385 | func->vendor = func->card->cis.vendor; |
| 386 | func->device = func->card->cis.device; |
| 387 | } |
| 388 | |
| 389 | return 0; |
| 390 | } |
| 391 | |
| 392 | void sdio_free_func_cis(struct sdio_func *func) |
| 393 | { |
| 394 | struct sdio_func_tuple *tuple, *victim; |
| 395 | |
| 396 | tuple = func->tuples; |
| 397 | |
| 398 | while (tuple && tuple != func->card->tuples) { |
| 399 | victim = tuple; |
| 400 | tuple = tuple->next; |
| 401 | kfree(victim); |
| 402 | } |
| 403 | |
Nicolas Pitre | b1538bc | 2007-06-16 02:06:47 -0400 | [diff] [blame] | 404 | func->tuples = NULL; |
Pierre Ossman | 1a632f8 | 2007-07-30 15:15:30 +0200 | [diff] [blame] | 405 | |
| 406 | /* |
| 407 | * We have now removed the link to the tuples in the |
| 408 | * card structure, so remove the reference. |
| 409 | */ |
| 410 | put_device(&func->card->dev); |
Nicolas Pitre | b1538bc | 2007-06-16 02:06:47 -0400 | [diff] [blame] | 411 | } |
| 412 | |