| 1 | /*␊ |
| 2 | * This file is part of the flashrom project.␊ |
| 3 | *␊ |
| 4 | * Copyright (C) 2010 Carl-Daniel Hailfinger␊ |
| 5 | *␊ |
| 6 | * This program is free software; you can redistribute it and/or modify␊ |
| 7 | * it under the terms of the GNU General Public License as published by␊ |
| 8 | * the Free Software Foundation; version 2 of the License.␊ |
| 9 | *␊ |
| 10 | * This program is distributed in the hope that it will be useful,␊ |
| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of␊ |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the␊ |
| 13 | * GNU General Public License for more details.␊ |
| 14 | *␊ |
| 15 | * You should have received a copy of the GNU General Public License␊ |
| 16 | * along with this program; if not, write to the Free Software␊ |
| 17 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA␊ |
| 18 | */␊ |
| 19 | ␊ |
| 20 | #include <stdio.h>␊ |
| 21 | #include <string.h>␊ |
| 22 | #include <usb.h>␊ |
| 23 | #include "flash.h"␊ |
| 24 | #include "chipdrivers.h"␊ |
| 25 | #include "programmer.h"␊ |
| 26 | #include "spi.h"␊ |
| 27 | ␊ |
| 28 | #define FIRMWARE_VERSION(x,y,z) ((x << 16) | (y << 8) | z)␊ |
| 29 | #define DEFAULT_TIMEOUT 3000␊ |
| 30 | static usb_dev_handle *dediprog_handle;␊ |
| 31 | static int dediprog_firmwareversion;␊ |
| 32 | static int dediprog_endpoint;␊ |
| 33 | ␊ |
| 34 | #if 0␊ |
| 35 | /* Might be useful for other pieces of code as well. */␊ |
| 36 | static void print_hex(void *buf, size_t len)␊ |
| 37 | {␊ |
| 38 | ␉size_t i;␊ |
| 39 | ␊ |
| 40 | ␉for (i = 0; i < len; i++)␊ |
| 41 | ␉␉msg_pdbg(" %02x", ((uint8_t *)buf)[i]);␊ |
| 42 | }␊ |
| 43 | #endif␊ |
| 44 | ␊ |
| 45 | /* Might be useful for other USB devices as well. static for now. */␊ |
| 46 | static struct usb_device *get_device_by_vid_pid(uint16_t vid, uint16_t pid)␊ |
| 47 | {␊ |
| 48 | ␉struct usb_bus *bus;␊ |
| 49 | ␉struct usb_device *dev;␊ |
| 50 | ␊ |
| 51 | ␉for (bus = usb_get_busses(); bus; bus = bus->next)␊ |
| 52 | ␉␉for (dev = bus->devices; dev; dev = dev->next)␊ |
| 53 | ␉␉␉if ((dev->descriptor.idVendor == vid) &&␊ |
| 54 | ␉␉␉ (dev->descriptor.idProduct == pid))␊ |
| 55 | ␉␉␉␉return dev;␊ |
| 56 | ␊ |
| 57 | ␉return NULL;␊ |
| 58 | }␊ |
| 59 | ␊ |
| 60 | //int usb_control_msg(usb_dev_handle *dev, int requesttype, int request, int value, int index, char *bytes, int size, int timeout);␊ |
| 61 | ␊ |
| 62 | /* Set/clear LEDs on dediprog */␊ |
| 63 | #define PASS_ON␉␉(0 << 0)␊ |
| 64 | #define PASS_OFF␉(1 << 0)␊ |
| 65 | #define BUSY_ON␉␉(0 << 1)␊ |
| 66 | #define BUSY_OFF␉(1 << 1)␊ |
| 67 | #define ERROR_ON␉(0 << 2)␊ |
| 68 | #define ERROR_OFF␉(1 << 2)␊ |
| 69 | static int current_led_status = -1;␊ |
| 70 | ␊ |
| 71 | static int dediprog_set_leds(int leds)␊ |
| 72 | {␊ |
| 73 | ␉int ret, target_leds;␊ |
| 74 | ␊ |
| 75 | ␉if (leds < 0 || leds > 7)␊ |
| 76 | ␉␉leds = 0; // Bogus value, enable all LEDs␊ |
| 77 | ␊ |
| 78 | ␉if (leds == current_led_status)␊ |
| 79 | ␉␉return 0;␊ |
| 80 | ␊ |
| 81 | ␉/* Older Dediprogs with 2.x.x and 3.x.x firmware only had␊ |
| 82 | ␉ * two LEDs, and they were reversed. So map them around if ␊ |
| 83 | ␉ * we have an old device. On those devices the LEDs map as␊ |
| 84 | ␉ * follows:␊ |
| 85 | ␉ * bit 2 == 0: green light is on.␊ |
| 86 | ␉ * bit 0 == 0: red light is on. ␊ |
| 87 | ␉ */␊ |
| 88 | ␉if (dediprog_firmwareversion < FIRMWARE_VERSION(5,0,0)) {␊ |
| 89 | ␉␉target_leds = ((leds & ERROR_OFF) >> 2) | ␊ |
| 90 | ␉␉␉((leds & PASS_OFF) << 2);␊ |
| 91 | ␉} else {␊ |
| 92 | ␉␉target_leds = leds;␊ |
| 93 | ␉}␊ |
| 94 | ␊ |
| 95 | ␉ret = usb_control_msg(dediprog_handle, 0x42, 0x07, 0x09, target_leds,␊ |
| 96 | ␉␉␉ NULL, 0x0, DEFAULT_TIMEOUT);␊ |
| 97 | ␉if (ret != 0x0) {␊ |
| 98 | ␉␉msg_perr("Command Set LED 0x%x failed (%s)!\n",␊ |
| 99 | ␉␉␉ leds, usb_strerror());␊ |
| 100 | ␉␉return 1;␊ |
| 101 | ␉}␊ |
| 102 | ␊ |
| 103 | ␉current_led_status = leds;␊ |
| 104 | ␊ |
| 105 | ␉return 0;␊ |
| 106 | }␊ |
| 107 | ␊ |
| 108 | static int dediprog_set_spi_voltage(int millivolt)␊ |
| 109 | {␊ |
| 110 | ␉int ret;␊ |
| 111 | ␉uint16_t voltage_selector;␊ |
| 112 | ␊ |
| 113 | ␉switch (millivolt) {␊ |
| 114 | ␉case 0:␊ |
| 115 | ␉␉/* Admittedly this one is an assumption. */␊ |
| 116 | ␉␉voltage_selector = 0x0;␊ |
| 117 | ␉␉break;␊ |
| 118 | ␉case 1800:␊ |
| 119 | ␉␉voltage_selector = 0x12;␊ |
| 120 | ␉␉break;␊ |
| 121 | ␉case 2500:␊ |
| 122 | ␉␉voltage_selector = 0x11;␊ |
| 123 | ␉␉break;␊ |
| 124 | ␉case 3500:␊ |
| 125 | ␉␉voltage_selector = 0x10;␊ |
| 126 | ␉␉break;␊ |
| 127 | ␉default:␊ |
| 128 | ␉␉msg_perr("Unknown voltage %i mV! Aborting.\n", millivolt);␊ |
| 129 | ␉␉return 1;␊ |
| 130 | ␉}␊ |
| 131 | ␉msg_pdbg("Setting SPI voltage to %u.%03u V\n", millivolt / 1000,␊ |
| 132 | ␉␉ millivolt % 1000);␊ |
| 133 | ␊ |
| 134 | ␉ret = usb_control_msg(dediprog_handle, 0x42, 0x9, voltage_selector,␊ |
| 135 | ␉␉␉ 0xff, NULL, 0x0, DEFAULT_TIMEOUT);␊ |
| 136 | ␉if (ret != 0x0) {␊ |
| 137 | ␉␉msg_perr("Command Set SPI Voltage 0x%x failed!\n",␊ |
| 138 | ␉␉␉ voltage_selector);␊ |
| 139 | ␉␉return 1;␊ |
| 140 | ␉}␊ |
| 141 | ␉return 0;␊ |
| 142 | }␊ |
| 143 | ␊ |
| 144 | #if 0␊ |
| 145 | /* After dediprog_set_spi_speed, the original app always calls␊ |
| 146 | * dediprog_set_spi_voltage(0) and then␊ |
| 147 | * dediprog_check_devicestring() four times in a row.␊ |
| 148 | * After that, dediprog_command_a() is called.␊ |
| 149 | * This looks suspiciously like the microprocessor in the SF100 has to be␊ |
| 150 | * restarted/reinitialized in case the speed changes.␊ |
| 151 | */␊ |
| 152 | static int dediprog_set_spi_speed(uint16_t speed)␊ |
| 153 | {␊ |
| 154 | ␉int ret;␊ |
| 155 | ␉unsigned int khz;␊ |
| 156 | ␊ |
| 157 | ␉/* Case 1 and 2 are in weird order. Probably an organically "grown"␊ |
| 158 | ␉ * interface.␊ |
| 159 | ␉ * Base frequency is 24000 kHz, divisors are (in order)␊ |
| 160 | ␉ * 1, 3, 2, 8, 11, 16, 32, 64.␊ |
| 161 | ␉ */␊ |
| 162 | ␉switch (speed) {␊ |
| 163 | ␉case 0x0:␊ |
| 164 | ␉␉khz = 24000;␊ |
| 165 | ␉␉break;␊ |
| 166 | ␉case 0x1:␊ |
| 167 | ␉␉khz = 8000;␊ |
| 168 | ␉␉break;␊ |
| 169 | ␉case 0x2:␊ |
| 170 | ␉␉khz = 12000;␊ |
| 171 | ␉␉break;␊ |
| 172 | ␉case 0x3:␊ |
| 173 | ␉␉khz = 3000;␊ |
| 174 | ␉␉break;␊ |
| 175 | ␉case 0x4:␊ |
| 176 | ␉␉khz = 2180;␊ |
| 177 | ␉␉break;␊ |
| 178 | ␉case 0x5:␊ |
| 179 | ␉␉khz = 1500;␊ |
| 180 | ␉␉break;␊ |
| 181 | ␉case 0x6:␊ |
| 182 | ␉␉khz = 750;␊ |
| 183 | ␉␉break;␊ |
| 184 | ␉case 0x7:␊ |
| 185 | ␉␉khz = 375;␊ |
| 186 | ␉␉break;␊ |
| 187 | ␉default:␊ |
| 188 | ␉␉msg_perr("Unknown frequency selector 0x%x! Aborting.\n", speed);␊ |
| 189 | ␉␉return 1;␊ |
| 190 | ␉}␊ |
| 191 | ␉msg_pdbg("Setting SPI speed to %u kHz\n", khz);␊ |
| 192 | ␊ |
| 193 | ␉ret = usb_control_msg(dediprog_handle, 0x42, 0x61, speed, 0xff, NULL,␊ |
| 194 | ␉␉␉ 0x0, DEFAULT_TIMEOUT);␊ |
| 195 | ␉if (ret != 0x0) {␊ |
| 196 | ␉␉msg_perr("Command Set SPI Speed 0x%x failed!\n", speed);␊ |
| 197 | ␉␉return 1;␊ |
| 198 | ␉}␊ |
| 199 | ␉return 0;␊ |
| 200 | }␊ |
| 201 | #endif␊ |
| 202 | ␊ |
| 203 | /* Bulk read interface, will read multiple 512 byte chunks aligned to 512 bytes.␊ |
| 204 | * @start␉start address␊ |
| 205 | * @len␉␉length␊ |
| 206 | * @return␉0 on success, 1 on failure␊ |
| 207 | */␊ |
| 208 | static int dediprog_spi_bulk_read(struct flashctx *flash, uint8_t *buf,␊ |
| 209 | ␉␉␉␉ unsigned int start, unsigned int len)␊ |
| 210 | {␊ |
| 211 | ␉int ret;␊ |
| 212 | ␉unsigned int i;␊ |
| 213 | ␉/* chunksize must be 512, other sizes will NOT work at all. */␊ |
| 214 | ␉const unsigned int chunksize = 0x200;␊ |
| 215 | ␉const unsigned int count = len / chunksize;␊ |
| 216 | ␉const char count_and_chunk[] = {count & 0xff,␊ |
| 217 | ␉␉␉␉␉(count >> 8) & 0xff,␊ |
| 218 | ␉␉␉␉␉chunksize & 0xff,␊ |
| 219 | ␉␉␉␉␉(chunksize >> 8) & 0xff};␊ |
| 220 | ␊ |
| 221 | ␉if ((start % chunksize) || (len % chunksize)) {␊ |
| 222 | ␉␉msg_perr("%s: Unaligned start=%i, len=%i! Please report a bug "␊ |
| 223 | ␉␉␉ "at flashrom@flashrom.org\n", __func__, start, len);␊ |
| 224 | ␉␉return 1;␊ |
| 225 | ␉}␊ |
| 226 | ␊ |
| 227 | ␉/* No idea if the hardware can handle empty reads, so chicken out. */␊ |
| 228 | ␉if (!len)␊ |
| 229 | ␉␉return 0;␊ |
| 230 | ␉/* Command Read SPI Bulk. No idea which read command is used on the␊ |
| 231 | ␉ * SPI side.␊ |
| 232 | ␉ */␊ |
| 233 | ␉ret = usb_control_msg(dediprog_handle, 0x42, 0x20, start % 0x10000,␊ |
| 234 | ␉␉␉ start / 0x10000, (char *)count_and_chunk,␊ |
| 235 | ␉␉␉ sizeof(count_and_chunk), DEFAULT_TIMEOUT);␊ |
| 236 | ␉if (ret != sizeof(count_and_chunk)) {␊ |
| 237 | ␉␉msg_perr("Command Read SPI Bulk failed, %i %s!\n", ret,␊ |
| 238 | ␉␉␉ usb_strerror());␊ |
| 239 | ␉␉return 1;␊ |
| 240 | ␉}␊ |
| 241 | ␊ |
| 242 | ␉for (i = 0; i < count; i++) {␊ |
| 243 | ␉␉ret = usb_bulk_read(dediprog_handle, 0x80 | dediprog_endpoint,␊ |
| 244 | ␉␉␉␉ (char *)buf + i * chunksize, chunksize,␊ |
| 245 | ␉␉␉␉ DEFAULT_TIMEOUT);␊ |
| 246 | ␉␉if (ret != chunksize) {␊ |
| 247 | ␉␉␉msg_perr("SPI bulk read %i failed, expected %i, got %i "␊ |
| 248 | ␉␉␉␉ "%s!\n", i, chunksize, ret, usb_strerror());␊ |
| 249 | ␉␉␉return 1;␊ |
| 250 | ␉␉}␊ |
| 251 | ␉}␊ |
| 252 | ␊ |
| 253 | ␉return 0;␊ |
| 254 | }␊ |
| 255 | ␊ |
| 256 | static int dediprog_spi_read(struct flashctx *flash, uint8_t *buf,␊ |
| 257 | ␉␉␉ unsigned int start, unsigned int len)␊ |
| 258 | {␊ |
| 259 | ␉int ret;␊ |
| 260 | ␉/* chunksize must be 512, other sizes will NOT work at all. */␊ |
| 261 | ␉const unsigned int chunksize = 0x200;␊ |
| 262 | ␉unsigned int residue = start % chunksize ? chunksize - start % chunksize : 0;␊ |
| 263 | ␉unsigned int bulklen;␊ |
| 264 | ␊ |
| 265 | ␉dediprog_set_leds(PASS_OFF|BUSY_ON|ERROR_OFF);␊ |
| 266 | ␊ |
| 267 | ␉if (residue) {␊ |
| 268 | ␉␉msg_pdbg("Slow read for partial block from 0x%x, length 0x%x\n",␊ |
| 269 | ␉␉␉ start, residue);␊ |
| 270 | ␉␉ret = spi_read_chunked(flash, buf, start, residue, 16);␊ |
| 271 | ␉␉if (ret) {␊ |
| 272 | ␉␉␉dediprog_set_leds(PASS_OFF|BUSY_OFF|ERROR_ON);␊ |
| 273 | ␉␉␉return ret;␊ |
| 274 | ␉␉}␊ |
| 275 | ␉}␊ |
| 276 | ␊ |
| 277 | ␉/* Round down. */␊ |
| 278 | ␉bulklen = (len - residue) / chunksize * chunksize;␊ |
| 279 | ␉ret = dediprog_spi_bulk_read(flash, buf + residue, start + residue,␊ |
| 280 | ␉␉␉␉ bulklen);␊ |
| 281 | ␉if (ret) {␊ |
| 282 | ␉␉dediprog_set_leds(PASS_OFF|BUSY_OFF|ERROR_ON);␊ |
| 283 | ␉␉return ret;␊ |
| 284 | ␉}␊ |
| 285 | ␊ |
| 286 | ␉len -= residue + bulklen;␊ |
| 287 | ␉if (len) {␊ |
| 288 | ␉␉msg_pdbg("Slow read for partial block from 0x%x, length 0x%x\n",␊ |
| 289 | ␉␉␉ start, len);␊ |
| 290 | ␉␉ret = spi_read_chunked(flash, buf + residue + bulklen,␊ |
| 291 | ␉␉␉␉ start + residue + bulklen, len, 16);␊ |
| 292 | ␉␉if (ret) {␊ |
| 293 | ␉␉␉dediprog_set_leds(PASS_OFF|BUSY_OFF|ERROR_ON);␊ |
| 294 | ␉␉␉return ret;␊ |
| 295 | ␉␉}␊ |
| 296 | ␉}␊ |
| 297 | ␊ |
| 298 | ␉dediprog_set_leds(PASS_ON|BUSY_OFF|ERROR_OFF);␊ |
| 299 | ␉return 0;␊ |
| 300 | }␊ |
| 301 | ␊ |
| 302 | /* Bulk write interface, will read multiple page_size byte chunks aligned to page_size bytes.␊ |
| 303 | * @start␉start address␊ |
| 304 | * @len␉␉length␊ |
| 305 | * @return␉0 on success, 1 on failure␊ |
| 306 | */␊ |
| 307 | static int dediprog_spi_bulk_write(struct flashctx *flash, uint8_t *buf,␊ |
| 308 | ␉␉␉␉ unsigned int start, unsigned int len)␊ |
| 309 | {␊ |
| 310 | ␉int ret;␊ |
| 311 | ␉unsigned int i;␊ |
| 312 | ␉/* USB transfer size must be 512, other sizes will NOT work at all.␊ |
| 313 | ␉ * chunksize is the real data size per USB bulk transfer. The remaining␊ |
| 314 | ␉ * space in a USB bulk transfer must be filled with 0xff padding.␊ |
| 315 | ␉ */␊ |
| 316 | ␉const unsigned int chunksize = flash->page_size;␊ |
| 317 | ␉const unsigned int count = len / chunksize;␊ |
| 318 | ␉const char count_and_chunk[] = {count & 0xff,␊ |
| 319 | ␉␉␉␉␉(count >> 8) & 0xff,␊ |
| 320 | ␉␉␉␉␉chunksize & 0xff,␊ |
| 321 | ␉␉␉␉␉(chunksize >> 8) & 0xff};␊ |
| 322 | ␉char usbbuf[512];␊ |
| 323 | ␊ |
| 324 | ␉if ((start % chunksize) || (len % chunksize)) {␊ |
| 325 | ␉␉msg_perr("%s: Unaligned start=%i, len=%i! Please report a bug "␊ |
| 326 | ␉␉␉ "at flashrom@flashrom.org\n", __func__, start, len);␊ |
| 327 | ␉␉return 1;␊ |
| 328 | ␉}␊ |
| 329 | ␊ |
| 330 | ␉/* No idea if the hardware can handle empty writes, so chicken out. */␊ |
| 331 | ␉if (!len)␊ |
| 332 | ␉␉return 0;␊ |
| 333 | ␉/* Command Write SPI Bulk. No idea which write command is used on the␊ |
| 334 | ␉ * SPI side.␊ |
| 335 | ␉ */␊ |
| 336 | ␉ret = usb_control_msg(dediprog_handle, 0x42, 0x30, start % 0x10000,␊ |
| 337 | ␉␉␉ start / 0x10000, (char *)count_and_chunk,␊ |
| 338 | ␉␉␉ sizeof(count_and_chunk), DEFAULT_TIMEOUT);␊ |
| 339 | ␉if (ret != sizeof(count_and_chunk)) {␊ |
| 340 | ␉␉msg_perr("Command Write SPI Bulk failed, %i %s!\n", ret,␊ |
| 341 | ␉␉␉ usb_strerror());␊ |
| 342 | ␉␉return 1;␊ |
| 343 | ␉}␊ |
| 344 | ␊ |
| 345 | ␉for (i = 0; i < count; i++) {␊ |
| 346 | ␉␉memset(usbbuf, 0xff, sizeof(usbbuf));␊ |
| 347 | ␉␉memcpy(usbbuf, buf + i * chunksize, chunksize);␊ |
| 348 | ␉␉ret = usb_bulk_write(dediprog_handle, dediprog_endpoint,␊ |
| 349 | ␉␉␉␉ usbbuf, 512,␊ |
| 350 | ␉␉␉␉ DEFAULT_TIMEOUT);␊ |
| 351 | ␉␉if (ret != 512) {␊ |
| 352 | ␉␉␉msg_perr("SPI bulk write failed, expected %i, got %i "␊ |
| 353 | ␉␉␉␉ "%s!\n", 512, ret, usb_strerror());␊ |
| 354 | ␉␉␉return 1;␊ |
| 355 | ␉␉}␊ |
| 356 | ␉}␊ |
| 357 | ␊ |
| 358 | ␉return 0;␊ |
| 359 | }␊ |
| 360 | ␊ |
| 361 | static int dediprog_spi_write_256(struct flashctx *flash, uint8_t *buf,␊ |
| 362 | ␉␉␉␉ unsigned int start, unsigned int len)␊ |
| 363 | {␊ |
| 364 | ␉int ret;␊ |
| 365 | ␉const unsigned int chunksize = flash->page_size;␊ |
| 366 | ␉unsigned int residue = start % chunksize ? chunksize - start % chunksize : 0;␊ |
| 367 | ␉unsigned int bulklen;␊ |
| 368 | ␊ |
| 369 | ␉dediprog_set_leds(PASS_OFF|BUSY_ON|ERROR_OFF);␊ |
| 370 | ␊ |
| 371 | ␉if (residue) {␊ |
| 372 | ␉␉msg_pdbg("Slow write for partial block from 0x%x, length 0x%x\n",␊ |
| 373 | ␉␉␉ start, residue);␊ |
| 374 | ␉␉/* No idea about the real limit. Maybe 12, maybe more. */␊ |
| 375 | ␉␉ret = spi_write_chunked(flash, buf, start, residue, 12);␊ |
| 376 | ␉␉if (ret) {␊ |
| 377 | ␉␉␉dediprog_set_leds(PASS_OFF|BUSY_OFF|ERROR_ON);␊ |
| 378 | ␉␉␉return ret;␊ |
| 379 | ␉␉}␊ |
| 380 | ␉}␊ |
| 381 | ␊ |
| 382 | ␉/* Round down. */␊ |
| 383 | ␉bulklen = (len - residue) / chunksize * chunksize;␊ |
| 384 | ␉ret = dediprog_spi_bulk_write(flash, buf + residue, start + residue,␊ |
| 385 | ␉␉␉␉ bulklen);␊ |
| 386 | ␉if (ret) {␊ |
| 387 | ␉␉dediprog_set_leds(PASS_OFF|BUSY_OFF|ERROR_ON);␊ |
| 388 | ␉␉return ret;␊ |
| 389 | ␉}␊ |
| 390 | ␊ |
| 391 | ␉len -= residue + bulklen;␊ |
| 392 | ␉if (len) {␊ |
| 393 | ␉␉msg_pdbg("Slow write for partial block from 0x%x, length 0x%x\n",␊ |
| 394 | ␉␉␉ start, len);␊ |
| 395 | ␉␉ret = spi_write_chunked(flash, buf + residue + bulklen,␊ |
| 396 | ␉␉␉␉ start + residue + bulklen, len, 12);␊ |
| 397 | ␉␉if (ret) {␊ |
| 398 | ␉␉␉dediprog_set_leds(PASS_OFF|BUSY_OFF|ERROR_ON);␊ |
| 399 | ␉␉␉return ret;␊ |
| 400 | ␉␉}␊ |
| 401 | ␉}␊ |
| 402 | ␊ |
| 403 | ␉dediprog_set_leds(PASS_ON|BUSY_OFF|ERROR_OFF);␊ |
| 404 | ␉return 0;␊ |
| 405 | }␊ |
| 406 | ␊ |
| 407 | static int dediprog_spi_send_command(struct flashctx *flash,␊ |
| 408 | ␉␉␉␉ unsigned int writecnt,␊ |
| 409 | ␉␉␉␉ unsigned int readcnt,␊ |
| 410 | ␉␉␉␉ const unsigned char *writearr,␊ |
| 411 | ␉␉␉␉ unsigned char *readarr)␊ |
| 412 | {␊ |
| 413 | ␉int ret;␊ |
| 414 | ␊ |
| 415 | ␉msg_pspew("%s, writecnt=%i, readcnt=%i\n", __func__, writecnt, readcnt);␊ |
| 416 | ␉/* Paranoid, but I don't want to be blamed if anything explodes. */␊ |
| 417 | ␉if (writecnt > 16) {␊ |
| 418 | ␉␉msg_perr("Untested writecnt=%i, aborting.\n", writecnt);␊ |
| 419 | ␉␉return 1;␊ |
| 420 | ␉}␊ |
| 421 | ␉/* 16 byte reads should work. */␊ |
| 422 | ␉if (readcnt > 16) {␊ |
| 423 | ␉␉msg_perr("Untested readcnt=%i, aborting.\n", readcnt);␊ |
| 424 | ␉␉return 1;␊ |
| 425 | ␉}␊ |
| 426 | ␉␊ |
| 427 | ␉ret = usb_control_msg(dediprog_handle, 0x42, 0x1, 0xff,␊ |
| 428 | ␉␉␉ readcnt ? 0x1 : 0x0, (char *)writearr, writecnt,␊ |
| 429 | ␉␉␉ DEFAULT_TIMEOUT);␊ |
| 430 | ␉if (ret != writecnt) {␊ |
| 431 | ␉␉msg_perr("Send SPI failed, expected %i, got %i %s!\n",␊ |
| 432 | ␉␉␉ writecnt, ret, usb_strerror());␊ |
| 433 | ␉␉return 1;␊ |
| 434 | ␉}␊ |
| 435 | ␉if (!readcnt)␊ |
| 436 | ␉␉return 0;␊ |
| 437 | ␉memset(readarr, 0, readcnt);␊ |
| 438 | ␉ret = usb_control_msg(dediprog_handle, 0xc2, 0x01, 0xbb8, 0x0000,␊ |
| 439 | ␉␉␉ (char *)readarr, readcnt, DEFAULT_TIMEOUT);␊ |
| 440 | ␉if (ret != readcnt) {␊ |
| 441 | ␉␉msg_perr("Receive SPI failed, expected %i, got %i %s!\n",␊ |
| 442 | ␉␉␉ readcnt, ret, usb_strerror());␊ |
| 443 | ␉␉return 1;␊ |
| 444 | ␉}␊ |
| 445 | ␉return 0;␊ |
| 446 | }␊ |
| 447 | ␊ |
| 448 | static int dediprog_check_devicestring(void)␊ |
| 449 | {␊ |
| 450 | ␉int ret;␊ |
| 451 | ␉int fw[3];␊ |
| 452 | ␉char buf[0x11];␊ |
| 453 | ␊ |
| 454 | ␉/* Command Prepare Receive Device String. */␊ |
| 455 | ␉memset(buf, 0, sizeof(buf));␊ |
| 456 | ␉ret = usb_control_msg(dediprog_handle, 0xc3, 0x7, 0x0, 0xef03, buf,␊ |
| 457 | ␉␉␉ 0x1, DEFAULT_TIMEOUT);␊ |
| 458 | ␉/* The char casting is needed to stop gcc complaining about an always true comparison. */␊ |
| 459 | ␉if ((ret != 0x1) || (buf[0] != (char)0xff)) {␊ |
| 460 | ␉␉msg_perr("Unexpected response to Command Prepare Receive Device"␊ |
| 461 | ␉␉␉ " String!\n");␊ |
| 462 | ␉␉return 1;␊ |
| 463 | ␉}␊ |
| 464 | ␉/* Command Receive Device String. */␊ |
| 465 | ␉memset(buf, 0, sizeof(buf));␊ |
| 466 | ␉ret = usb_control_msg(dediprog_handle, 0xc2, 0x8, 0xff, 0xff, buf,␊ |
| 467 | ␉␉␉ 0x10, DEFAULT_TIMEOUT);␊ |
| 468 | ␉if (ret != 0x10) {␊ |
| 469 | ␉␉msg_perr("Incomplete/failed Command Receive Device String!\n");␊ |
| 470 | ␉␉return 1;␊ |
| 471 | ␉}␊ |
| 472 | ␉buf[0x10] = '\0';␊ |
| 473 | ␉msg_pdbg("Found a %s\n", buf);␊ |
| 474 | ␉if (memcmp(buf, "SF100", 0x5)) {␊ |
| 475 | ␉␉msg_perr("Device not a SF100!\n");␊ |
| 476 | ␉␉return 1;␊ |
| 477 | ␉}␊ |
| 478 | ␉if (sscanf(buf, "SF100 V:%d.%d.%d ", &fw[0], &fw[1], &fw[2]) != 3) {␊ |
| 479 | ␉␉msg_perr("Unexpected firmware version string!\n");␊ |
| 480 | ␉␉return 1;␊ |
| 481 | ␉}␊ |
| 482 | ␉/* Only these versions were tested. */␊ |
| 483 | ␉if (fw[0] < 2 || fw[0] > 5) {␊ |
| 484 | ␉␉msg_perr("Unexpected firmware version %d.%d.%d!\n", fw[0],␊ |
| 485 | ␉␉␉ fw[1], fw[2]);␊ |
| 486 | ␉␉return 1;␊ |
| 487 | ␉}␊ |
| 488 | ␉dediprog_firmwareversion = FIRMWARE_VERSION(fw[0], fw[1], fw[2]);␊ |
| 489 | ␉return 0;␊ |
| 490 | }␊ |
| 491 | ␊ |
| 492 | /* Command A seems to be some sort of device init. It is either followed by␊ |
| 493 | * dediprog_check_devicestring (often) or Command A (often) or␊ |
| 494 | * Command F (once).␊ |
| 495 | */␊ |
| 496 | static int dediprog_command_a(void)␊ |
| 497 | {␊ |
| 498 | ␉int ret;␊ |
| 499 | ␉char buf[0x1];␊ |
| 500 | ␊ |
| 501 | ␉memset(buf, 0, sizeof(buf));␊ |
| 502 | ␉ret = usb_control_msg(dediprog_handle, 0xc3, 0xb, 0x0, 0x0, buf,␊ |
| 503 | ␉␉␉ 0x1, DEFAULT_TIMEOUT);␊ |
| 504 | ␉if (ret < 0) {␊ |
| 505 | ␉␉msg_perr("Command A failed (%s)!\n", usb_strerror());␊ |
| 506 | ␉␉return 1;␊ |
| 507 | ␉}␊ |
| 508 | ␉if ((ret != 0x1) || (buf[0] != 0x6f)) {␊ |
| 509 | ␉␉msg_perr("Unexpected response to Command A!\n");␊ |
| 510 | ␉␉return 1;␊ |
| 511 | ␉}␊ |
| 512 | ␉return 0;␊ |
| 513 | }␊ |
| 514 | ␊ |
| 515 | #if 0␊ |
| 516 | /* Something.␊ |
| 517 | * Present in eng_detect_blink.log with firmware 3.1.8␊ |
| 518 | * Always preceded by Command Receive Device String␊ |
| 519 | */␊ |
| 520 | static int dediprog_command_b(void)␊ |
| 521 | {␊ |
| 522 | ␉int ret;␊ |
| 523 | ␉char buf[0x3];␊ |
| 524 | ␊ |
| 525 | ␉memset(buf, 0, sizeof(buf));␊ |
| 526 | ␉ret = usb_control_msg(dediprog_handle, 0xc3, 0x7, 0x0, 0xef00, buf,␊ |
| 527 | ␉␉␉ 0x3, DEFAULT_TIMEOUT);␊ |
| 528 | ␉if (ret < 0) {␊ |
| 529 | ␉␉msg_perr("Command B failed (%s)!\n", usb_strerror());␊ |
| 530 | ␉␉return 1;␊ |
| 531 | ␉}␊ |
| 532 | ␉if ((ret != 0x3) || (buf[0] != 0xff) || (buf[1] != 0xff) ||␊ |
| 533 | ␉ (buf[2] != 0xff)) {␊ |
| 534 | ␉␉msg_perr("Unexpected response to Command B!\n");␊ |
| 535 | ␉␉return 1;␊ |
| 536 | ␉}␊ |
| 537 | ␊ |
| 538 | ␉return 0;␊ |
| 539 | }␊ |
| 540 | #endif␊ |
| 541 | ␊ |
| 542 | /* Command C is only sent after dediprog_check_devicestring, but not after every␊ |
| 543 | * invocation of dediprog_check_devicestring. It is only sent after the first␊ |
| 544 | * dediprog_command_a(); dediprog_check_devicestring() sequence in each session.␊ |
| 545 | * I'm tempted to call this one start_SPI_engine or finish_init.␊ |
| 546 | */␊ |
| 547 | static int dediprog_command_c(void)␊ |
| 548 | {␊ |
| 549 | ␉int ret;␊ |
| 550 | ␊ |
| 551 | ␉ret = usb_control_msg(dediprog_handle, 0x42, 0x4, 0x0, 0x0, NULL,␊ |
| 552 | ␉␉␉ 0x0, DEFAULT_TIMEOUT);␊ |
| 553 | ␉if (ret != 0x0) {␊ |
| 554 | ␉␉msg_perr("Command C failed (%s)!\n", usb_strerror());␊ |
| 555 | ␉␉return 1;␊ |
| 556 | ␉}␊ |
| 557 | ␉return 0;␊ |
| 558 | }␊ |
| 559 | ␊ |
| 560 | #if 0␊ |
| 561 | /* Very strange. Seems to be a programmer keepalive or somesuch.␊ |
| 562 | * Wait unsuccessfully for timeout ms to read one byte.␊ |
| 563 | * Is usually called after setting voltage to 0.␊ |
| 564 | * Present in all logs with Firmware 2.1.1 and 3.1.8␊ |
| 565 | */␊ |
| 566 | static int dediprog_command_f(int timeout)␊ |
| 567 | {␊ |
| 568 | ␉int ret;␊ |
| 569 | ␉char buf[0x1];␊ |
| 570 | ␊ |
| 571 | ␉memset(buf, 0, sizeof(buf));␊ |
| 572 | ␉ret = usb_control_msg(dediprog_handle, 0xc2, 0x11, 0xff, 0xff, buf,␊ |
| 573 | ␉␉␉ 0x1, timeout);␊ |
| 574 | ␉/* This check is most probably wrong. Command F always causes a timeout␊ |
| 575 | ␉ * in the logs, so we should check for timeout instead of checking for␊ |
| 576 | ␉ * success.␊ |
| 577 | ␉ */␊ |
| 578 | ␉if (ret != 0x1) {␊ |
| 579 | ␉␉msg_perr("Command F failed (%s)!\n", usb_strerror());␊ |
| 580 | ␉␉return 1;␊ |
| 581 | ␉}␊ |
| 582 | ␉return 0;␊ |
| 583 | }␊ |
| 584 | ␊ |
| 585 | /* Start/stop blinking?␊ |
| 586 | * Present in eng_detect_blink.log with firmware 3.1.8␊ |
| 587 | * Preceded by Command J␊ |
| 588 | */␊ |
| 589 | static int dediprog_command_g(void)␊ |
| 590 | {␊ |
| 591 | ␉int ret;␊ |
| 592 | ␊ |
| 593 | ␉ret = usb_control_msg(dediprog_handle, 0x42, 0x07, 0x09, 0x03, NULL, 0x0, DEFAULT_TIMEOUT);␊ |
| 594 | ␉if (ret != 0x0) {␊ |
| 595 | ␉␉msg_perr("Command G failed (%s)!\n", usb_strerror());␊ |
| 596 | ␉␉return 1;␊ |
| 597 | ␉}␊ |
| 598 | ␉return 0;␊ |
| 599 | }␊ |
| 600 | ␊ |
| 601 | /* Something.␊ |
| 602 | * Present in all logs with firmware 5.1.5␊ |
| 603 | * Always preceded by Command Receive Device String␊ |
| 604 | * Always followed by Command Set SPI Voltage nonzero␊ |
| 605 | */␊ |
| 606 | static int dediprog_command_h(void)␊ |
| 607 | {␊ |
| 608 | ␉int ret;␊ |
| 609 | ␊ |
| 610 | ␉ret = usb_control_msg(dediprog_handle, 0x42, 0x07, 0x09, 0x05, NULL, 0x0, DEFAULT_TIMEOUT);␊ |
| 611 | ␉if (ret != 0x0) {␊ |
| 612 | ␉␉msg_perr("Command H failed (%s)!\n", usb_strerror());␊ |
| 613 | ␉␉return 1;␊ |
| 614 | ␉}␊ |
| 615 | ␉return 0;␊ |
| 616 | }␊ |
| 617 | ␊ |
| 618 | /* Shutdown for firmware 5.x?␊ |
| 619 | * Present in all logs with firmware 5.1.5␊ |
| 620 | * Often preceded by a SPI operation (Command Read SPI Bulk or Receive SPI)␊ |
| 621 | * Always followed by Command Set SPI Voltage 0x0000␊ |
| 622 | */␊ |
| 623 | static int dediprog_command_i(void)␊ |
| 624 | {␊ |
| 625 | ␉int ret;␊ |
| 626 | ␊ |
| 627 | ␉ret = usb_control_msg(dediprog_handle, 0x42, 0x07, 0x09, 0x06, NULL, 0x0, DEFAULT_TIMEOUT);␊ |
| 628 | ␉if (ret != 0x0) {␊ |
| 629 | ␉␉msg_perr("Command I failed (%s)!\n", usb_strerror());␊ |
| 630 | ␉␉return 1;␊ |
| 631 | ␉}␊ |
| 632 | ␉return 0;␊ |
| 633 | }␊ |
| 634 | ␊ |
| 635 | /* Start/stop blinking?␊ |
| 636 | * Present in all logs with firmware 5.1.5␊ |
| 637 | * Always preceded by Command Receive Device String on 5.1.5␊ |
| 638 | * Always followed by Command Set SPI Voltage nonzero on 5.1.5␊ |
| 639 | * Present in eng_detect_blink.log with firmware 3.1.8␊ |
| 640 | * Preceded by Command B in eng_detect_blink.log␊ |
| 641 | * Followed by Command G in eng_detect_blink.log␊ |
| 642 | */␊ |
| 643 | static int dediprog_command_j(void)␊ |
| 644 | {␊ |
| 645 | ␉int ret;␊ |
| 646 | ␊ |
| 647 | ␉ret = usb_control_msg(dediprog_handle, 0x42, 0x07, 0x09, 0x07, NULL, 0x0, DEFAULT_TIMEOUT);␊ |
| 648 | ␉if (ret != 0x0) {␊ |
| 649 | ␉␉msg_perr("Command J failed (%s)!\n", usb_strerror());␊ |
| 650 | ␉␉return 1;␊ |
| 651 | ␉}␊ |
| 652 | ␉return 0;␊ |
| 653 | }␊ |
| 654 | #endif␊ |
| 655 | ␊ |
| 656 | static int parse_voltage(char *voltage)␊ |
| 657 | {␊ |
| 658 | ␉char *tmp = NULL;␊ |
| 659 | ␉int i;␊ |
| 660 | ␉int millivolt = 0, fraction = 0;␊ |
| 661 | ␊ |
| 662 | ␉if (!voltage || !strlen(voltage)) {␊ |
| 663 | ␉␉msg_perr("Empty voltage= specified.\n");␊ |
| 664 | ␉␉return -1;␊ |
| 665 | ␉}␊ |
| 666 | ␉millivolt = (int)strtol(voltage, &tmp, 0);␊ |
| 667 | ␉voltage = tmp;␊ |
| 668 | ␉/* Handle "," and "." as decimal point. Everything after it is assumed␊ |
| 669 | ␉ * to be in decimal notation.␊ |
| 670 | ␉ */␊ |
| 671 | ␉if ((*voltage == '.') || (*voltage == ',')) {␊ |
| 672 | ␉␉voltage++;␊ |
| 673 | ␉␉for (i = 0; i < 3; i++) {␊ |
| 674 | ␉␉␉fraction *= 10;␊ |
| 675 | ␉␉␉/* Don't advance if the current character is invalid,␊ |
| 676 | ␉␉␉ * but continue multiplying.␊ |
| 677 | ␉␉␉ */␊ |
| 678 | ␉␉␉if ((*voltage < '0') || (*voltage > '9'))␊ |
| 679 | ␉␉␉␉continue;␊ |
| 680 | ␉␉␉fraction += *voltage - '0';␊ |
| 681 | ␉␉␉voltage++;␊ |
| 682 | ␉␉}␊ |
| 683 | ␉␉/* Throw away remaining digits. */␊ |
| 684 | ␉␉voltage += strspn(voltage, "0123456789");␊ |
| 685 | ␉}␊ |
| 686 | ␉/* The remaining string must be empty or "mV" or "V". */␊ |
| 687 | ␉tolower_string(voltage);␊ |
| 688 | ␊ |
| 689 | ␉/* No unit or "V". */␊ |
| 690 | ␉if ((*voltage == '\0') || !strncmp(voltage, "v", 1)) {␊ |
| 691 | ␉␉millivolt *= 1000;␊ |
| 692 | ␉␉millivolt += fraction;␊ |
| 693 | ␉} else if (!strncmp(voltage, "mv", 2) ||␊ |
| 694 | ␉␉ !strncmp(voltage, "milliv", 6)) {␊ |
| 695 | ␉␉/* No adjustment. fraction is discarded. */␊ |
| 696 | ␉} else {␊ |
| 697 | ␉␉/* Garbage at the end of the string. */␊ |
| 698 | ␉␉msg_perr("Garbage voltage= specified.\n");␊ |
| 699 | ␉␉return -1;␊ |
| 700 | ␉}␊ |
| 701 | ␉return millivolt;␊ |
| 702 | }␊ |
| 703 | ␊ |
| 704 | static const struct spi_programmer spi_programmer_dediprog = {␊ |
| 705 | ␉.type␉␉= SPI_CONTROLLER_DEDIPROG,␊ |
| 706 | ␉.max_data_read␉= MAX_DATA_UNSPECIFIED,␊ |
| 707 | ␉.max_data_write␉= MAX_DATA_UNSPECIFIED,␊ |
| 708 | ␉.command␉= dediprog_spi_send_command,␊ |
| 709 | ␉.multicommand␉= default_spi_send_multicommand,␊ |
| 710 | ␉.read␉␉= dediprog_spi_read,␊ |
| 711 | ␉.write_256␉= dediprog_spi_write_256,␊ |
| 712 | };␊ |
| 713 | ␊ |
| 714 | static int dediprog_shutdown(void *data)␊ |
| 715 | {␊ |
| 716 | ␉msg_pspew("%s\n", __func__);␊ |
| 717 | ␊ |
| 718 | #if 0␊ |
| 719 | ␉/* Shutdown on firmware 5.x */␊ |
| 720 | ␉if (dediprog_firmwareversion == 5)␊ |
| 721 | ␉␉if (dediprog_command_i())␊ |
| 722 | ␉␉␉return 1;␊ |
| 723 | #endif␊ |
| 724 | ␊ |
| 725 | ␉/* URB 28. Command Set SPI Voltage to 0. */␊ |
| 726 | ␉if (dediprog_set_spi_voltage(0x0))␊ |
| 727 | ␉␉return 1;␊ |
| 728 | ␊ |
| 729 | ␉if (usb_release_interface(dediprog_handle, 0)) {␊ |
| 730 | ␉␉msg_perr("Could not release USB interface!\n");␊ |
| 731 | ␉␉return 1;␊ |
| 732 | ␉}␊ |
| 733 | ␉if (usb_close(dediprog_handle)) {␊ |
| 734 | ␉␉msg_perr("Could not close USB device!\n");␊ |
| 735 | ␉␉return 1;␊ |
| 736 | ␉}␊ |
| 737 | ␉return 0;␊ |
| 738 | }␊ |
| 739 | ␊ |
| 740 | /* URB numbers refer to the first log ever captured. */␊ |
| 741 | int dediprog_init(void)␊ |
| 742 | {␊ |
| 743 | ␉struct usb_device *dev;␊ |
| 744 | ␉char *voltage;␊ |
| 745 | ␉int millivolt = 3500;␊ |
| 746 | ␉int ret;␊ |
| 747 | ␊ |
| 748 | ␉msg_pspew("%s\n", __func__);␊ |
| 749 | ␊ |
| 750 | ␉voltage = extract_programmer_param("voltage");␊ |
| 751 | ␉if (voltage) {␊ |
| 752 | ␉␉millivolt = parse_voltage(voltage);␊ |
| 753 | ␉␉free(voltage);␊ |
| 754 | ␉␉if (millivolt < 0)␊ |
| 755 | ␉␉␉return 1;␊ |
| 756 | ␉␉msg_pinfo("Setting voltage to %i mV\n", millivolt);␊ |
| 757 | ␉}␊ |
| 758 | ␊ |
| 759 | ␉/* Here comes the USB stuff. */␊ |
| 760 | ␉usb_init();␊ |
| 761 | ␉usb_find_busses();␊ |
| 762 | ␉usb_find_devices();␊ |
| 763 | ␉dev = get_device_by_vid_pid(0x0483, 0xdada);␊ |
| 764 | ␉if (!dev) {␊ |
| 765 | ␉␉msg_perr("Could not find a Dediprog SF100 on USB!\n");␊ |
| 766 | ␉␉return 1;␊ |
| 767 | ␉}␊ |
| 768 | ␉msg_pdbg("Found USB device (%04x:%04x).\n",␊ |
| 769 | ␉␉ dev->descriptor.idVendor, dev->descriptor.idProduct);␊ |
| 770 | ␉dediprog_handle = usb_open(dev);␊ |
| 771 | ␉ret = usb_set_configuration(dediprog_handle, 1);␊ |
| 772 | ␉if (ret < 0) {␊ |
| 773 | ␉␉msg_perr("Could not set USB device configuration: %i %s\n",␊ |
| 774 | ␉␉␉ ret, usb_strerror());␊ |
| 775 | ␉␉if (usb_close(dediprog_handle))␊ |
| 776 | ␉␉␉msg_perr("Could not close USB device!\n");␊ |
| 777 | ␉␉return 1;␊ |
| 778 | ␉}␊ |
| 779 | ␉ret = usb_claim_interface(dediprog_handle, 0);␊ |
| 780 | ␉if (ret < 0) {␊ |
| 781 | ␉␉msg_perr("Could not claim USB device interface %i: %i %s\n",␊ |
| 782 | ␉␉␉ 0, ret, usb_strerror());␊ |
| 783 | ␉␉if (usb_close(dediprog_handle))␊ |
| 784 | ␉␉␉msg_perr("Could not close USB device!\n");␊ |
| 785 | ␉␉return 1;␊ |
| 786 | ␉}␊ |
| 787 | ␉dediprog_endpoint = 2;␊ |
| 788 | ␉␊ |
| 789 | ␉if (register_shutdown(dediprog_shutdown, NULL))␊ |
| 790 | ␉␉return 1;␊ |
| 791 | ␊ |
| 792 | ␉dediprog_set_leds(PASS_ON|BUSY_ON|ERROR_ON);␊ |
| 793 | ␊ |
| 794 | ␉/* URB 6. Command A. */␊ |
| 795 | ␉if (dediprog_command_a()) {␊ |
| 796 | ␉␉dediprog_set_leds(PASS_OFF|BUSY_OFF|ERROR_ON);␊ |
| 797 | ␉␉return 1;␊ |
| 798 | ␉}␊ |
| 799 | ␉/* URB 7. Command A. */␊ |
| 800 | ␉if (dediprog_command_a()) {␊ |
| 801 | ␉␉dediprog_set_leds(PASS_OFF|BUSY_OFF|ERROR_ON);␊ |
| 802 | ␉␉return 1;␊ |
| 803 | ␉}␊ |
| 804 | ␉/* URB 8. Command Prepare Receive Device String. */␊ |
| 805 | ␉/* URB 9. Command Receive Device String. */␊ |
| 806 | ␉if (dediprog_check_devicestring()) {␊ |
| 807 | ␉␉dediprog_set_leds(PASS_OFF|BUSY_OFF|ERROR_ON);␊ |
| 808 | ␉␉return 1;␊ |
| 809 | ␉}␊ |
| 810 | ␉/* URB 10. Command C. */␊ |
| 811 | ␉if (dediprog_command_c()) {␊ |
| 812 | ␉␉dediprog_set_leds(PASS_OFF|BUSY_OFF|ERROR_ON);␊ |
| 813 | ␉␉return 1;␊ |
| 814 | ␉}␊ |
| 815 | ␉/* URB 11. Command Set SPI Voltage. */␊ |
| 816 | ␉if (dediprog_set_spi_voltage(millivolt)) {␊ |
| 817 | ␉␉dediprog_set_leds(PASS_OFF|BUSY_OFF|ERROR_ON);␊ |
| 818 | ␉␉return 1;␊ |
| 819 | ␉}␊ |
| 820 | ␊ |
| 821 | ␉register_spi_programmer(&spi_programmer_dediprog);␊ |
| 822 | ␊ |
| 823 | ␉/* RE leftover, leave in until the driver is complete. */␊ |
| 824 | #if 0␊ |
| 825 | ␉/* Execute RDID by hand if you want to test it. */␊ |
| 826 | ␉dediprog_do_stuff();␊ |
| 827 | #endif␊ |
| 828 | ␊ |
| 829 | ␉dediprog_set_leds(PASS_OFF|BUSY_OFF|ERROR_OFF);␊ |
| 830 | ␊ |
| 831 | ␉return 0;␊ |
| 832 | }␊ |
| 833 | ␊ |
| 834 | #if 0␊ |
| 835 | /* Leftovers from reverse engineering. Keep for documentation purposes until␊ |
| 836 | * completely understood.␊ |
| 837 | */␊ |
| 838 | static int dediprog_do_stuff(void)␊ |
| 839 | {␊ |
| 840 | ␉char buf[0x4];␊ |
| 841 | ␉/* SPI command processing starts here. */␊ |
| 842 | ␊ |
| 843 | ␉/* URB 12. Command Send SPI. */␊ |
| 844 | ␉/* URB 13. Command Receive SPI. */␊ |
| 845 | ␉memset(buf, 0, sizeof(buf));␊ |
| 846 | ␉/* JEDEC RDID */␊ |
| 847 | ␉msg_pdbg("Sending RDID\n");␊ |
| 848 | ␉buf[0] = JEDEC_RDID;␊ |
| 849 | ␉if (dediprog_spi_send_command(JEDEC_RDID_OUTSIZE, JEDEC_RDID_INSIZE,␊ |
| 850 | ␉␉␉␉(unsigned char *)buf, (unsigned char *)buf))␊ |
| 851 | ␉␉return 1;␊ |
| 852 | ␉msg_pdbg("Receiving response: ");␊ |
| 853 | ␉print_hex(buf, JEDEC_RDID_INSIZE);␊ |
| 854 | ␉/* URB 14-27 are more SPI commands. */␊ |
| 855 | ␉/* URB 28. Command Set SPI Voltage. */␊ |
| 856 | ␉if (dediprog_set_spi_voltage(0x0))␊ |
| 857 | ␉␉return 1;␊ |
| 858 | ␉/* URB 29-38. Command F, unsuccessful wait. */␊ |
| 859 | ␉if (dediprog_command_f(544))␊ |
| 860 | ␉␉return 1;␊ |
| 861 | ␉/* URB 39. Command Set SPI Voltage. */␊ |
| 862 | ␉if (dediprog_set_spi_voltage(0x10))␊ |
| 863 | ␉␉return 1;␊ |
| 864 | ␉/* URB 40. Command Set SPI Speed. */␊ |
| 865 | ␉if (dediprog_set_spi_speed(0x2))␊ |
| 866 | ␉␉return 1;␊ |
| 867 | ␉/* URB 41 is just URB 28. */␊ |
| 868 | ␉/* URB 42,44,46,48,51,53 is just URB 8. */␊ |
| 869 | ␉/* URB 43,45,47,49,52,54 is just URB 9. */␊ |
| 870 | ␉/* URB 50 is just URB 6/7. */␊ |
| 871 | ␉/* URB 55-131 is just URB 29-38. (wait unsuccessfully for 4695 (maybe 4751) ms)*/␊ |
| 872 | ␉/* URB 132,134 is just URB 6/7. */␊ |
| 873 | ␉/* URB 133 is just URB 29-38. */␊ |
| 874 | ␉/* URB 135 is just URB 8. */␊ |
| 875 | ␉/* URB 136 is just URB 9. */␊ |
| 876 | ␉/* URB 137 is just URB 11. */␊ |
| 877 | ␊ |
| 878 | ␉/* Command Start Bulk Read. Data is u16 blockcount, u16 blocksize. */␊ |
| 879 | ␉/* Command Start Bulk Write. Data is u16 blockcount, u16 blocksize. */␊ |
| 880 | ␉/* Bulk transfer sizes for Command Start Bulk Read/Write are always␊ |
| 881 | ␉ * 512 bytes, rest is filled with 0xff.␊ |
| 882 | ␉ */␊ |
| 883 | ␊ |
| 884 | ␉return 0;␊ |
| 885 | }␊ |
| 886 | #endif␉␊ |
| 887 | |
