David Kilroy | f482eb7 | 2008-08-21 23:27:51 +0100 | [diff] [blame] | 1 | /* |
| 2 | * Hermes download helper driver. |
| 3 | * |
| 4 | * This could be entirely merged into hermes.c. |
| 5 | * |
| 6 | * I'm keeping it separate to minimise the amount of merging between |
| 7 | * kernel upgrades. It also means the memory overhead for drivers that |
| 8 | * don't need firmware download low. |
| 9 | * |
| 10 | * This driver: |
| 11 | * - is capable of writing to the volatile area of the hermes device |
| 12 | * - is currently not capable of writing to non-volatile areas |
| 13 | * - provide helpers to identify and update plugin data |
| 14 | * - is not capable of interpreting a fw image directly. That is up to |
| 15 | * the main card driver. |
| 16 | * - deals with Hermes I devices. It can probably be modified to deal |
| 17 | * with Hermes II devices |
| 18 | * |
| 19 | * Copyright (C) 2007, David Kilroy |
| 20 | * |
| 21 | * Plug data code slightly modified from spectrum_cs driver |
| 22 | * Copyright (C) 2002-2005 Pavel Roskin <proski@gnu.org> |
| 23 | * Portions based on information in wl_lkm_718 Agere driver |
| 24 | * COPYRIGHT (C) 2001-2004 by Agere Systems Inc. All Rights Reserved |
| 25 | * |
| 26 | * The contents of this file are subject to the Mozilla Public License |
| 27 | * Version 1.1 (the "License"); you may not use this file except in |
| 28 | * compliance with the License. You may obtain a copy of the License |
| 29 | * at http://www.mozilla.org/MPL/ |
| 30 | * |
| 31 | * Software distributed under the License is distributed on an "AS IS" |
| 32 | * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See |
| 33 | * the License for the specific language governing rights and |
| 34 | * limitations under the License. |
| 35 | * |
| 36 | * Alternatively, the contents of this file may be used under the |
| 37 | * terms of the GNU General Public License version 2 (the "GPL"), in |
| 38 | * which case the provisions of the GPL are applicable instead of the |
| 39 | * above. If you wish to allow the use of your version of this file |
| 40 | * only under the terms of the GPL and not to allow others to use your |
| 41 | * version of this file under the MPL, indicate your decision by |
| 42 | * deleting the provisions above and replace them with the notice and |
| 43 | * other provisions required by the GPL. If you do not delete the |
| 44 | * provisions above, a recipient may use your version of this file |
| 45 | * under either the MPL or the GPL. |
| 46 | */ |
| 47 | |
| 48 | #include <linux/module.h> |
| 49 | #include <linux/delay.h> |
| 50 | #include "hermes.h" |
| 51 | #include "hermes_dld.h" |
| 52 | |
| 53 | MODULE_DESCRIPTION("Download helper for Lucent Hermes chipset"); |
| 54 | MODULE_AUTHOR("David Kilroy <kilroyd@gmail.com>"); |
| 55 | MODULE_LICENSE("Dual MPL/GPL"); |
| 56 | |
| 57 | #define PFX "hermes_dld: " |
| 58 | |
| 59 | /* |
| 60 | * AUX port access. To unlock the AUX port write the access keys to the |
| 61 | * PARAM0-2 registers, then write HERMES_AUX_ENABLE to the HERMES_CONTROL |
| 62 | * register. Then read it and make sure it's HERMES_AUX_ENABLED. |
| 63 | */ |
| 64 | #define HERMES_AUX_ENABLE 0x8000 /* Enable auxiliary port access */ |
| 65 | #define HERMES_AUX_DISABLE 0x4000 /* Disable to auxiliary port access */ |
| 66 | #define HERMES_AUX_ENABLED 0xC000 /* Auxiliary port is open */ |
David Kilroy | e233418 | 2008-08-21 23:27:52 +0100 | [diff] [blame^] | 67 | #define HERMES_AUX_DISABLED 0x0000 /* Auxiliary port is closed */ |
David Kilroy | f482eb7 | 2008-08-21 23:27:51 +0100 | [diff] [blame] | 68 | |
| 69 | #define HERMES_AUX_PW0 0xFE01 |
| 70 | #define HERMES_AUX_PW1 0xDC23 |
| 71 | #define HERMES_AUX_PW2 0xBA45 |
| 72 | |
David Kilroy | e233418 | 2008-08-21 23:27:52 +0100 | [diff] [blame^] | 73 | /* End markers used in dblocks */ |
David Kilroy | f482eb7 | 2008-08-21 23:27:51 +0100 | [diff] [blame] | 74 | #define PDI_END 0x00000000 /* End of PDA */ |
| 75 | #define BLOCK_END 0xFFFFFFFF /* Last image block */ |
David Kilroy | e233418 | 2008-08-21 23:27:52 +0100 | [diff] [blame^] | 76 | #define TEXT_END 0x1A /* End of text header */ |
| 77 | |
| 78 | /* |
| 79 | * PDA == Production Data Area |
| 80 | * |
| 81 | * In principle, the max. size of the PDA is is 4096 words. Currently, |
| 82 | * however, only about 500 bytes of this area are used. |
| 83 | * |
| 84 | * Some USB implementations can't handle sizes in excess of 1016. Note |
| 85 | * that PDA is not actually used in those USB environments, but may be |
| 86 | * retrieved by common code. |
| 87 | */ |
| 88 | #define MAX_PDA_SIZE 1000 |
| 89 | |
| 90 | /* Limit the amout we try to download in a single shot. |
| 91 | * Size is in bytes. |
| 92 | */ |
| 93 | #define MAX_DL_SIZE 1024 |
| 94 | #define LIMIT_PROGRAM_SIZE 0 |
David Kilroy | f482eb7 | 2008-08-21 23:27:51 +0100 | [diff] [blame] | 95 | |
| 96 | /* |
| 97 | * The following structures have little-endian fields denoted by |
| 98 | * the leading underscore. Don't access them directly - use inline |
| 99 | * functions defined below. |
| 100 | */ |
| 101 | |
| 102 | /* |
| 103 | * The binary image to be downloaded consists of series of data blocks. |
| 104 | * Each block has the following structure. |
| 105 | */ |
| 106 | struct dblock { |
| 107 | __le32 addr; /* adapter address where to write the block */ |
| 108 | __le16 len; /* length of the data only, in bytes */ |
| 109 | char data[0]; /* data to be written */ |
| 110 | } __attribute__ ((packed)); |
| 111 | |
| 112 | /* |
| 113 | * Plug Data References are located in in the image after the last data |
| 114 | * block. They refer to areas in the adapter memory where the plug data |
| 115 | * items with matching ID should be written. |
| 116 | */ |
| 117 | struct pdr { |
| 118 | __le32 id; /* record ID */ |
| 119 | __le32 addr; /* adapter address where to write the data */ |
| 120 | __le32 len; /* expected length of the data, in bytes */ |
| 121 | char next[0]; /* next PDR starts here */ |
| 122 | } __attribute__ ((packed)); |
| 123 | |
| 124 | /* |
| 125 | * Plug Data Items are located in the EEPROM read from the adapter by |
| 126 | * primary firmware. They refer to the device-specific data that should |
| 127 | * be plugged into the secondary firmware. |
| 128 | */ |
| 129 | struct pdi { |
| 130 | __le16 len; /* length of ID and data, in words */ |
| 131 | __le16 id; /* record ID */ |
| 132 | char data[0]; /* plug data */ |
| 133 | } __attribute__ ((packed)); |
| 134 | |
David Kilroy | e233418 | 2008-08-21 23:27:52 +0100 | [diff] [blame^] | 135 | /*** FW data block access functions ***/ |
| 136 | |
David Kilroy | f482eb7 | 2008-08-21 23:27:51 +0100 | [diff] [blame] | 137 | static inline u32 |
| 138 | dblock_addr(const struct dblock *blk) |
| 139 | { |
| 140 | return le32_to_cpu(blk->addr); |
| 141 | } |
| 142 | |
| 143 | static inline u32 |
| 144 | dblock_len(const struct dblock *blk) |
| 145 | { |
| 146 | return le16_to_cpu(blk->len); |
| 147 | } |
| 148 | |
David Kilroy | e233418 | 2008-08-21 23:27:52 +0100 | [diff] [blame^] | 149 | /*** PDR Access functions ***/ |
| 150 | |
David Kilroy | f482eb7 | 2008-08-21 23:27:51 +0100 | [diff] [blame] | 151 | static inline u32 |
| 152 | pdr_id(const struct pdr *pdr) |
| 153 | { |
| 154 | return le32_to_cpu(pdr->id); |
| 155 | } |
| 156 | |
| 157 | static inline u32 |
| 158 | pdr_addr(const struct pdr *pdr) |
| 159 | { |
| 160 | return le32_to_cpu(pdr->addr); |
| 161 | } |
| 162 | |
| 163 | static inline u32 |
| 164 | pdr_len(const struct pdr *pdr) |
| 165 | { |
| 166 | return le32_to_cpu(pdr->len); |
| 167 | } |
| 168 | |
David Kilroy | e233418 | 2008-08-21 23:27:52 +0100 | [diff] [blame^] | 169 | /*** PDI Access functions ***/ |
| 170 | |
David Kilroy | f482eb7 | 2008-08-21 23:27:51 +0100 | [diff] [blame] | 171 | static inline u32 |
| 172 | pdi_id(const struct pdi *pdi) |
| 173 | { |
| 174 | return le16_to_cpu(pdi->id); |
| 175 | } |
| 176 | |
| 177 | /* Return length of the data only, in bytes */ |
| 178 | static inline u32 |
| 179 | pdi_len(const struct pdi *pdi) |
| 180 | { |
| 181 | return 2 * (le16_to_cpu(pdi->len) - 1); |
| 182 | } |
| 183 | |
David Kilroy | e233418 | 2008-08-21 23:27:52 +0100 | [diff] [blame^] | 184 | /*** Hermes AUX control ***/ |
| 185 | |
David Kilroy | f482eb7 | 2008-08-21 23:27:51 +0100 | [diff] [blame] | 186 | static inline void |
David Kilroy | e233418 | 2008-08-21 23:27:52 +0100 | [diff] [blame^] | 187 | hermes_aux_setaddr(hermes_t *hw, u32 addr) |
David Kilroy | f482eb7 | 2008-08-21 23:27:51 +0100 | [diff] [blame] | 188 | { |
| 189 | hermes_write_reg(hw, HERMES_AUXPAGE, (u16) (addr >> 7)); |
| 190 | hermes_write_reg(hw, HERMES_AUXOFFSET, (u16) (addr & 0x7F)); |
| 191 | } |
| 192 | |
David Kilroy | e233418 | 2008-08-21 23:27:52 +0100 | [diff] [blame^] | 193 | static inline int |
| 194 | hermes_aux_control(hermes_t *hw, int enabled) |
David Kilroy | f482eb7 | 2008-08-21 23:27:51 +0100 | [diff] [blame] | 195 | { |
David Kilroy | e233418 | 2008-08-21 23:27:52 +0100 | [diff] [blame^] | 196 | int desired_state = enabled ? HERMES_AUX_ENABLED : HERMES_AUX_DISABLED; |
| 197 | int action = enabled ? HERMES_AUX_ENABLE : HERMES_AUX_DISABLE; |
David Kilroy | f482eb7 | 2008-08-21 23:27:51 +0100 | [diff] [blame] | 198 | int i; |
| 199 | |
| 200 | /* Already open? */ |
David Kilroy | e233418 | 2008-08-21 23:27:52 +0100 | [diff] [blame^] | 201 | if (hermes_read_reg(hw, HERMES_CONTROL) == desired_state) |
David Kilroy | f482eb7 | 2008-08-21 23:27:51 +0100 | [diff] [blame] | 202 | return 0; |
| 203 | |
| 204 | hermes_write_reg(hw, HERMES_PARAM0, HERMES_AUX_PW0); |
| 205 | hermes_write_reg(hw, HERMES_PARAM1, HERMES_AUX_PW1); |
| 206 | hermes_write_reg(hw, HERMES_PARAM2, HERMES_AUX_PW2); |
David Kilroy | e233418 | 2008-08-21 23:27:52 +0100 | [diff] [blame^] | 207 | hermes_write_reg(hw, HERMES_CONTROL, action); |
David Kilroy | f482eb7 | 2008-08-21 23:27:51 +0100 | [diff] [blame] | 208 | |
| 209 | for (i = 0; i < 20; i++) { |
| 210 | udelay(10); |
| 211 | if (hermes_read_reg(hw, HERMES_CONTROL) == |
David Kilroy | e233418 | 2008-08-21 23:27:52 +0100 | [diff] [blame^] | 212 | desired_state) |
David Kilroy | f482eb7 | 2008-08-21 23:27:51 +0100 | [diff] [blame] | 213 | return 0; |
| 214 | } |
| 215 | |
| 216 | return -EBUSY; |
| 217 | } |
| 218 | |
David Kilroy | e233418 | 2008-08-21 23:27:52 +0100 | [diff] [blame^] | 219 | /*** Plug Data Functions ***/ |
| 220 | |
David Kilroy | f482eb7 | 2008-08-21 23:27:51 +0100 | [diff] [blame] | 221 | /* |
| 222 | * Scan PDR for the record with the specified RECORD_ID. |
| 223 | * If it's not found, return NULL. |
| 224 | */ |
| 225 | static struct pdr * |
David Kilroy | e233418 | 2008-08-21 23:27:52 +0100 | [diff] [blame^] | 226 | hermes_find_pdr(struct pdr *first_pdr, u32 record_id) |
David Kilroy | f482eb7 | 2008-08-21 23:27:51 +0100 | [diff] [blame] | 227 | { |
| 228 | struct pdr *pdr = first_pdr; |
David Kilroy | e233418 | 2008-08-21 23:27:52 +0100 | [diff] [blame^] | 229 | void *end = (void *)first_pdr + MAX_PDA_SIZE; |
David Kilroy | f482eb7 | 2008-08-21 23:27:51 +0100 | [diff] [blame] | 230 | |
David Kilroy | e233418 | 2008-08-21 23:27:52 +0100 | [diff] [blame^] | 231 | while (((void *)pdr < end) && |
| 232 | (pdr_id(pdr) != PDI_END)) { |
David Kilroy | f482eb7 | 2008-08-21 23:27:51 +0100 | [diff] [blame] | 233 | /* |
| 234 | * PDR area is currently not terminated by PDI_END. |
| 235 | * It's followed by CRC records, which have the type |
| 236 | * field where PDR has length. The type can be 0 or 1. |
| 237 | */ |
| 238 | if (pdr_len(pdr) < 2) |
| 239 | return NULL; |
| 240 | |
| 241 | /* If the record ID matches, we are done */ |
| 242 | if (pdr_id(pdr) == record_id) |
| 243 | return pdr; |
| 244 | |
| 245 | pdr = (struct pdr *) pdr->next; |
| 246 | } |
| 247 | return NULL; |
| 248 | } |
| 249 | |
| 250 | /* Process one Plug Data Item - find corresponding PDR and plug it */ |
| 251 | static int |
David Kilroy | e233418 | 2008-08-21 23:27:52 +0100 | [diff] [blame^] | 252 | hermes_plug_pdi(hermes_t *hw, struct pdr *first_pdr, const struct pdi *pdi) |
David Kilroy | f482eb7 | 2008-08-21 23:27:51 +0100 | [diff] [blame] | 253 | { |
| 254 | struct pdr *pdr; |
| 255 | |
David Kilroy | e233418 | 2008-08-21 23:27:52 +0100 | [diff] [blame^] | 256 | /* Find the PDR corresponding to this PDI */ |
| 257 | pdr = hermes_find_pdr(first_pdr, pdi_id(pdi)); |
David Kilroy | f482eb7 | 2008-08-21 23:27:51 +0100 | [diff] [blame] | 258 | |
| 259 | /* No match is found, safe to ignore */ |
| 260 | if (!pdr) |
| 261 | return 0; |
| 262 | |
| 263 | /* Lengths of the data in PDI and PDR must match */ |
| 264 | if (pdi_len(pdi) != pdr_len(pdr)) |
| 265 | return -EINVAL; |
| 266 | |
| 267 | /* do the actual plugging */ |
David Kilroy | e233418 | 2008-08-21 23:27:52 +0100 | [diff] [blame^] | 268 | hermes_aux_setaddr(hw, pdr_addr(pdr)); |
David Kilroy | f482eb7 | 2008-08-21 23:27:51 +0100 | [diff] [blame] | 269 | hermes_write_bytes(hw, HERMES_AUXDATA, pdi->data, pdi_len(pdi)); |
| 270 | |
| 271 | return 0; |
| 272 | } |
| 273 | |
| 274 | /* Read PDA from the adapter */ |
David Kilroy | e233418 | 2008-08-21 23:27:52 +0100 | [diff] [blame^] | 275 | int hermes_read_pda(hermes_t *hw, |
| 276 | __le16 *pda, |
| 277 | u32 pda_addr, |
| 278 | u16 pda_len, |
| 279 | int use_eeprom) /* can we get this into hw? */ |
David Kilroy | f482eb7 | 2008-08-21 23:27:51 +0100 | [diff] [blame] | 280 | { |
| 281 | int ret; |
David Kilroy | e233418 | 2008-08-21 23:27:52 +0100 | [diff] [blame^] | 282 | u16 pda_size; |
| 283 | u16 data_len = pda_len; |
| 284 | __le16 *data = pda; |
David Kilroy | f482eb7 | 2008-08-21 23:27:51 +0100 | [diff] [blame] | 285 | |
David Kilroy | e233418 | 2008-08-21 23:27:52 +0100 | [diff] [blame^] | 286 | if (use_eeprom) { |
| 287 | /* PDA of spectrum symbol is in eeprom */ |
| 288 | |
| 289 | /* Issue command to read EEPROM */ |
| 290 | ret = hermes_docmd_wait(hw, HERMES_CMD_READMIF, 0, NULL); |
| 291 | if (ret) |
| 292 | return ret; |
| 293 | } |
David Kilroy | f482eb7 | 2008-08-21 23:27:51 +0100 | [diff] [blame] | 294 | |
| 295 | /* Open auxiliary port */ |
David Kilroy | e233418 | 2008-08-21 23:27:52 +0100 | [diff] [blame^] | 296 | ret = hermes_aux_control(hw, 1); |
| 297 | printk(KERN_DEBUG PFX "AUX enable returned %d\n", ret); |
David Kilroy | f482eb7 | 2008-08-21 23:27:51 +0100 | [diff] [blame] | 298 | if (ret) |
| 299 | return ret; |
| 300 | |
| 301 | /* read PDA from EEPROM */ |
David Kilroy | e233418 | 2008-08-21 23:27:52 +0100 | [diff] [blame^] | 302 | hermes_aux_setaddr(hw, pda_addr); |
| 303 | hermes_read_words(hw, HERMES_AUXDATA, data, data_len / 2); |
| 304 | |
| 305 | /* Close aux port */ |
| 306 | ret = hermes_aux_control(hw, 0); |
| 307 | printk(KERN_DEBUG PFX "AUX disable returned %d\n", ret); |
David Kilroy | f482eb7 | 2008-08-21 23:27:51 +0100 | [diff] [blame] | 308 | |
| 309 | /* Check PDA length */ |
| 310 | pda_size = le16_to_cpu(pda[0]); |
David Kilroy | e233418 | 2008-08-21 23:27:52 +0100 | [diff] [blame^] | 311 | printk(KERN_DEBUG PFX "Actual PDA length %d, Max allowed %d\n", |
| 312 | pda_size, pda_len); |
David Kilroy | f482eb7 | 2008-08-21 23:27:51 +0100 | [diff] [blame] | 313 | if (pda_size > pda_len) |
| 314 | return -EINVAL; |
| 315 | |
| 316 | return 0; |
| 317 | } |
David Kilroy | e233418 | 2008-08-21 23:27:52 +0100 | [diff] [blame^] | 318 | EXPORT_SYMBOL(hermes_read_pda); |
David Kilroy | f482eb7 | 2008-08-21 23:27:51 +0100 | [diff] [blame] | 319 | |
David Kilroy | e233418 | 2008-08-21 23:27:52 +0100 | [diff] [blame^] | 320 | /* Parse PDA and write the records into the adapter |
| 321 | * |
| 322 | * Attempt to write every records that is in the specified pda |
| 323 | * which also has a valid production data record for the firmware. |
| 324 | */ |
| 325 | int hermes_apply_pda(hermes_t *hw, |
| 326 | const char *first_pdr, |
| 327 | const __le16 *pda) |
David Kilroy | f482eb7 | 2008-08-21 23:27:51 +0100 | [diff] [blame] | 328 | { |
| 329 | int ret; |
David Kilroy | e233418 | 2008-08-21 23:27:52 +0100 | [diff] [blame^] | 330 | const struct pdi *pdi; |
| 331 | struct pdr *pdr; |
David Kilroy | f482eb7 | 2008-08-21 23:27:51 +0100 | [diff] [blame] | 332 | |
David Kilroy | e233418 | 2008-08-21 23:27:52 +0100 | [diff] [blame^] | 333 | pdr = (struct pdr *) first_pdr; |
David Kilroy | f482eb7 | 2008-08-21 23:27:51 +0100 | [diff] [blame] | 334 | |
| 335 | /* Go through every PDI and plug them into the adapter */ |
David Kilroy | e233418 | 2008-08-21 23:27:52 +0100 | [diff] [blame^] | 336 | pdi = (const struct pdi *) (pda + 2); |
David Kilroy | f482eb7 | 2008-08-21 23:27:51 +0100 | [diff] [blame] | 337 | while (pdi_id(pdi) != PDI_END) { |
David Kilroy | e233418 | 2008-08-21 23:27:52 +0100 | [diff] [blame^] | 338 | ret = hermes_plug_pdi(hw, pdr, pdi); |
David Kilroy | f482eb7 | 2008-08-21 23:27:51 +0100 | [diff] [blame] | 339 | if (ret) |
| 340 | return ret; |
| 341 | |
| 342 | /* Increment to the next PDI */ |
David Kilroy | e233418 | 2008-08-21 23:27:52 +0100 | [diff] [blame^] | 343 | pdi = (const struct pdi *) &pdi->data[pdi_len(pdi)]; |
David Kilroy | f482eb7 | 2008-08-21 23:27:51 +0100 | [diff] [blame] | 344 | } |
| 345 | return 0; |
| 346 | } |
David Kilroy | e233418 | 2008-08-21 23:27:52 +0100 | [diff] [blame^] | 347 | EXPORT_SYMBOL(hermes_apply_pda); |
David Kilroy | f482eb7 | 2008-08-21 23:27:51 +0100 | [diff] [blame] | 348 | |
David Kilroy | e233418 | 2008-08-21 23:27:52 +0100 | [diff] [blame^] | 349 | /* Identify the total number of bytes in all blocks |
| 350 | * including the header data. |
| 351 | */ |
| 352 | size_t |
| 353 | hermes_blocks_length(const char *first_block) |
| 354 | { |
| 355 | const struct dblock *blk = (const struct dblock *) first_block; |
| 356 | int total_len = 0; |
| 357 | int len; |
| 358 | |
| 359 | /* Skip all blocks to locate Plug Data References |
| 360 | * (Spectrum CS) */ |
| 361 | while (dblock_addr(blk) != BLOCK_END) { |
| 362 | len = dblock_len(blk); |
| 363 | total_len += sizeof(*blk) + len; |
| 364 | blk = (struct dblock *) &blk->data[len]; |
| 365 | } |
| 366 | |
| 367 | return total_len; |
| 368 | } |
| 369 | EXPORT_SYMBOL(hermes_blocks_length); |
| 370 | |
| 371 | /*** Hermes programming ***/ |
| 372 | |
| 373 | /* Program the data blocks */ |
| 374 | int hermes_program(hermes_t *hw, const char *first_block, const char *end) |
David Kilroy | f482eb7 | 2008-08-21 23:27:51 +0100 | [diff] [blame] | 375 | { |
| 376 | const struct dblock *blk; |
| 377 | u32 blkaddr; |
| 378 | u32 blklen; |
David Kilroy | e233418 | 2008-08-21 23:27:52 +0100 | [diff] [blame^] | 379 | #if LIMIT_PROGRAM_SIZE |
| 380 | u32 addr; |
| 381 | u32 len; |
| 382 | #endif |
David Kilroy | f482eb7 | 2008-08-21 23:27:51 +0100 | [diff] [blame] | 383 | |
David Kilroy | e233418 | 2008-08-21 23:27:52 +0100 | [diff] [blame^] | 384 | blk = (const struct dblock *) first_block; |
| 385 | |
| 386 | if ((const char *) blk > (end - sizeof(*blk))) |
| 387 | return -EIO; |
| 388 | |
David Kilroy | f482eb7 | 2008-08-21 23:27:51 +0100 | [diff] [blame] | 389 | blkaddr = dblock_addr(blk); |
| 390 | blklen = dblock_len(blk); |
| 391 | |
David Kilroy | e233418 | 2008-08-21 23:27:52 +0100 | [diff] [blame^] | 392 | while ((blkaddr != BLOCK_END) && |
| 393 | (((const char *) blk + blklen) <= end)) { |
| 394 | printk(KERN_DEBUG PFX |
| 395 | "Programming block of length %d to address 0x%08x\n", |
| 396 | blklen, blkaddr); |
| 397 | |
| 398 | #if !LIMIT_PROGRAM_SIZE |
| 399 | /* wl_lkm driver splits this into writes of 2000 bytes */ |
| 400 | hermes_aux_setaddr(hw, blkaddr); |
David Kilroy | f482eb7 | 2008-08-21 23:27:51 +0100 | [diff] [blame] | 401 | hermes_write_bytes(hw, HERMES_AUXDATA, blk->data, |
| 402 | blklen); |
David Kilroy | e233418 | 2008-08-21 23:27:52 +0100 | [diff] [blame^] | 403 | #else |
| 404 | len = (blklen < MAX_DL_SIZE) ? blklen : MAX_DL_SIZE; |
| 405 | addr = blkaddr; |
David Kilroy | f482eb7 | 2008-08-21 23:27:51 +0100 | [diff] [blame] | 406 | |
David Kilroy | e233418 | 2008-08-21 23:27:52 +0100 | [diff] [blame^] | 407 | while (addr < (blkaddr + blklen)) { |
| 408 | printk(KERN_DEBUG PFX |
| 409 | "Programming subblock of length %d " |
| 410 | "to address 0x%08x. Data @ %p\n", |
| 411 | len, addr, &blk->data[addr - blkaddr]); |
| 412 | |
| 413 | hermes_aux_setaddr(hw, addr); |
| 414 | hermes_write_bytes(hw, HERMES_AUXDATA, |
| 415 | &blk->data[addr - blkaddr], |
| 416 | len); |
| 417 | |
| 418 | addr += len; |
| 419 | len = ((blkaddr + blklen - addr) < MAX_DL_SIZE) ? |
| 420 | (blkaddr + blklen - addr) : MAX_DL_SIZE; |
| 421 | } |
| 422 | #endif |
| 423 | blk = (const struct dblock *) &blk->data[blklen]; |
| 424 | |
| 425 | if ((const char *) blk > (end - sizeof(*blk))) |
| 426 | return -EIO; |
| 427 | |
David Kilroy | f482eb7 | 2008-08-21 23:27:51 +0100 | [diff] [blame] | 428 | blkaddr = dblock_addr(blk); |
| 429 | blklen = dblock_len(blk); |
| 430 | } |
| 431 | return 0; |
| 432 | } |
David Kilroy | e233418 | 2008-08-21 23:27:52 +0100 | [diff] [blame^] | 433 | EXPORT_SYMBOL(hermes_program); |
David Kilroy | f482eb7 | 2008-08-21 23:27:51 +0100 | [diff] [blame] | 434 | |
| 435 | static int __init init_hermes_dld(void) |
| 436 | { |
| 437 | return 0; |
| 438 | } |
| 439 | |
| 440 | static void __exit exit_hermes_dld(void) |
| 441 | { |
| 442 | } |
| 443 | |
| 444 | module_init(init_hermes_dld); |
| 445 | module_exit(exit_hermes_dld); |