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author | Cástor Muñoz <cmvidal@gmail.com> | 2016-02-05 00:49:33 +0100 |
---|---|---|
committer | Cástor Muñoz <cmvidal@gmail.com> | 2016-08-19 00:15:59 +0200 |
commit | 7083110f8154f6ca47845fc747bad5062515658c (patch) | |
tree | 2c3bf23060d0435be9966c152710e93b2272516b /firmware | |
parent | bf89c757ddee815ebdd42bba91413daa96d50b75 (diff) | |
download | rockbox-7083110f8154f6ca47845fc747bad5062515658c.tar.gz rockbox-7083110f8154f6ca47845fc747bad5062515658c.zip |
iPod Classic: NOR support for bootloader
- NOR driver (based on emCORE)
- read/write IM3 images
- read 'flsh' files
Change-Id: Ie0654e0d298affc0f47ed64b823767118bd1aa3f
Diffstat (limited to 'firmware')
-rw-r--r-- | firmware/SOURCES | 1 | ||||
-rw-r--r-- | firmware/target/arm/s5l8702/nor-s5l8702.c | 369 | ||||
-rw-r--r-- | firmware/target/arm/s5l8702/nor-target.h | 167 |
3 files changed, 537 insertions, 0 deletions
diff --git a/firmware/SOURCES b/firmware/SOURCES index 391b9af185..6a18639eb2 100644 --- a/firmware/SOURCES +++ b/firmware/SOURCES | |||
@@ -1630,6 +1630,7 @@ target/arm/s5l8702/ipod6g/adc-ipod6g.c | |||
1630 | #else | 1630 | #else |
1631 | target/arm/s5l8702/spi-s5l8702.c | 1631 | target/arm/s5l8702/spi-s5l8702.c |
1632 | target/arm/s5l8702/crypto-s5l8702.c | 1632 | target/arm/s5l8702/crypto-s5l8702.c |
1633 | target/arm/s5l8702/nor-s5l8702.c | ||
1633 | #endif | 1634 | #endif |
1634 | #endif | 1635 | #endif |
1635 | 1636 | ||
diff --git a/firmware/target/arm/s5l8702/nor-s5l8702.c b/firmware/target/arm/s5l8702/nor-s5l8702.c new file mode 100644 index 0000000000..ac60ede2de --- /dev/null +++ b/firmware/target/arm/s5l8702/nor-s5l8702.c | |||
@@ -0,0 +1,369 @@ | |||
1 | /*************************************************************************** | ||
2 | * __________ __ ___. | ||
3 | * Open \______ \ ____ ____ | | _\_ |__ _______ ___ | ||
4 | * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / | ||
5 | * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < | ||
6 | * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ | ||
7 | * \/ \/ \/ \/ \/ | ||
8 | * $Id: | ||
9 | * | ||
10 | * Copyright © 2009 Michael Sparmann | ||
11 | * | ||
12 | * This program is free software; you can redistribute it and/or | ||
13 | * modify it under the terms of the GNU General Public License | ||
14 | * as published by the Free Software Foundation; either version 2 | ||
15 | * of the License, or (at your option) any later version. | ||
16 | * | ||
17 | * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY | ||
18 | * KIND, either express or implied. | ||
19 | * | ||
20 | ****************************************************************************/ | ||
21 | #include <stdint.h> | ||
22 | #include <stdbool.h> | ||
23 | #include <string.h> | ||
24 | |||
25 | #include "config.h" | ||
26 | #include "system.h" | ||
27 | #include "s5l8702.h" | ||
28 | #include "spi-s5l8702.h" | ||
29 | #include "crypto-s5l8702.h" | ||
30 | #include "nor-target.h" | ||
31 | |||
32 | static void bootflash_ce(int port, bool state) | ||
33 | { | ||
34 | spi_ce(port, state); | ||
35 | } | ||
36 | |||
37 | void bootflash_init(int port) | ||
38 | { | ||
39 | spi_init(port, true); | ||
40 | bootflash_ce(port, false); | ||
41 | } | ||
42 | |||
43 | void bootflash_close(int port) | ||
44 | { | ||
45 | spi_init(port, false); | ||
46 | } | ||
47 | |||
48 | static void bootflash_wait_ready(int port) | ||
49 | { | ||
50 | while (true) | ||
51 | { | ||
52 | bootflash_ce(port, true); | ||
53 | spi_write(port, 5); | ||
54 | if (!(spi_write(port, 0xff) & 1)) break; | ||
55 | bootflash_ce(port, false); | ||
56 | } | ||
57 | bootflash_ce(port, false); | ||
58 | } | ||
59 | |||
60 | static void bootflash_enable_writing(int port, bool state) | ||
61 | { | ||
62 | if (!state) | ||
63 | { | ||
64 | bootflash_ce(port, true); | ||
65 | spi_write(port, 4); | ||
66 | bootflash_ce(port, false); | ||
67 | } | ||
68 | bootflash_ce(port, true); | ||
69 | spi_write(port, 0x50); | ||
70 | bootflash_ce(port, false); | ||
71 | bootflash_ce(port, true); | ||
72 | spi_write(port, 1); | ||
73 | spi_write(port, state ? 0 : 0x1c); | ||
74 | bootflash_ce(port, false); | ||
75 | if (state) | ||
76 | { | ||
77 | bootflash_ce(port, true); | ||
78 | spi_write(port, 6); | ||
79 | bootflash_ce(port, false); | ||
80 | } | ||
81 | } | ||
82 | |||
83 | void bootflash_read(int port, uint32_t addr, uint32_t size, void* buf) | ||
84 | { | ||
85 | spi_prepare(port); | ||
86 | bootflash_wait_ready(port); | ||
87 | bootflash_ce(port, true); | ||
88 | spi_write(port, 3); | ||
89 | spi_write(port, (addr >> 16) & 0xff); | ||
90 | spi_write(port, (addr >> 8) & 0xff); | ||
91 | spi_write(port, addr & 0xff); | ||
92 | spi_read(port, size, buf); | ||
93 | bootflash_ce(port, false); | ||
94 | spi_release(port); | ||
95 | } | ||
96 | |||
97 | static void bootflash_write_internal(int port, uint32_t addr, uint32_t size, void* buf) | ||
98 | { | ||
99 | uint8_t* buffer = (uint8_t*)buf; | ||
100 | bool first = true; | ||
101 | spi_prepare(port); | ||
102 | bootflash_wait_ready(port); | ||
103 | bootflash_enable_writing(port, true); | ||
104 | while (size) | ||
105 | { | ||
106 | bootflash_ce(port, true); | ||
107 | spi_write(port, 0xad); | ||
108 | if (first) | ||
109 | { | ||
110 | spi_write(port, (addr >> 16) & 0xff); | ||
111 | spi_write(port, (addr >> 8) & 0xff); | ||
112 | spi_write(port, addr & 0xff); | ||
113 | first = false; | ||
114 | } | ||
115 | spi_write(port, *buffer++); | ||
116 | spi_write(port, *buffer++); | ||
117 | bootflash_ce(port, false); | ||
118 | bootflash_wait_ready(port); | ||
119 | size -= 2; | ||
120 | } | ||
121 | bootflash_enable_writing(port, false); | ||
122 | spi_release(port); | ||
123 | } | ||
124 | |||
125 | static void bootflash_erase_internal(int port, uint32_t addr) | ||
126 | { | ||
127 | spi_prepare(port); | ||
128 | bootflash_wait_ready(port); | ||
129 | bootflash_enable_writing(port, true); | ||
130 | bootflash_ce(port, true); | ||
131 | spi_write(port, 0x20); | ||
132 | spi_write(port, (addr >> 16) & 0xff); | ||
133 | spi_write(port, (addr >> 8) & 0xff); | ||
134 | spi_write(port, addr & 0xff); | ||
135 | bootflash_ce(port, false); | ||
136 | bootflash_enable_writing(port, false); | ||
137 | spi_release(port); | ||
138 | } | ||
139 | |||
140 | void bootflash_erase_blocks(int port, int first, int n) | ||
141 | { | ||
142 | uint32_t offset = first << 12; | ||
143 | while (n--) | ||
144 | { | ||
145 | bootflash_erase_internal(port, offset); | ||
146 | offset += 0x1000; | ||
147 | } | ||
148 | } | ||
149 | |||
150 | int bootflash_compare(int port, int offset, void* addr, int size) | ||
151 | { | ||
152 | int i; | ||
153 | int result = 0; | ||
154 | uint8_t buf[32]; | ||
155 | spi_prepare(port); | ||
156 | bootflash_wait_ready(port); | ||
157 | bootflash_ce(port, true); | ||
158 | spi_write(port, 3); | ||
159 | spi_write(port, (offset >> 16) & 0xff); | ||
160 | spi_write(port, (offset >> 8) & 0xff); | ||
161 | spi_write(port, offset & 0xff); | ||
162 | while (size > 0) | ||
163 | { | ||
164 | spi_read(port, MIN((int)sizeof(buf), size), buf); | ||
165 | if (memcmp((uint8_t*)addr, buf, MIN((int)sizeof(buf), size))) | ||
166 | result |= 1; | ||
167 | for (i = 0; i < MIN((int)sizeof(buf), size); i += 2) | ||
168 | if (buf[i] != 0xff) result |= 2; | ||
169 | addr = (void*)(((uint32_t)addr) + sizeof(buf)); | ||
170 | size -= sizeof(buf); | ||
171 | } | ||
172 | bootflash_ce(port, false); | ||
173 | spi_release(port); | ||
174 | return result; | ||
175 | } | ||
176 | |||
177 | void bootflash_write(int port, int offset, void* addr, int size) | ||
178 | { | ||
179 | int i; | ||
180 | bool needswrite; | ||
181 | while (size > 0) | ||
182 | { | ||
183 | int remainder = MIN(0x1000 - (offset & 0xfff), size); | ||
184 | int contentinfo = bootflash_compare(port, offset, addr, remainder); | ||
185 | if (contentinfo & 1) | ||
186 | { | ||
187 | if (contentinfo & 2) | ||
188 | bootflash_erase_internal(port, offset & ~0xfff); | ||
189 | needswrite = false; | ||
190 | for (i = 0; i < remainder; i += 1) | ||
191 | if (((uint8_t*)addr)[i] != 0xff) | ||
192 | { | ||
193 | needswrite = true; | ||
194 | break; | ||
195 | } | ||
196 | if (needswrite) | ||
197 | bootflash_write_internal(port, offset, remainder, addr); | ||
198 | } | ||
199 | addr = (void*)(((uint32_t)addr) + remainder); | ||
200 | offset += remainder; | ||
201 | size -= remainder; | ||
202 | } | ||
203 | } | ||
204 | |||
205 | |||
206 | /* | ||
207 | * IM3 | ||
208 | */ | ||
209 | static uint32_t get_uint32le(unsigned char *p) | ||
210 | { | ||
211 | return p[0] | (p[1] << 8) | (p[2] << 16) | (p[3] << 24); | ||
212 | } | ||
213 | |||
214 | /* return full IM3 size aligned to NOR sector size */ | ||
215 | unsigned im3_nor_sz(struct Im3Info* hinfo) | ||
216 | { | ||
217 | return ALIGN_UP(IM3HDR_SZ + get_uint32le(hinfo->data_sz), 0x1000); | ||
218 | } | ||
219 | |||
220 | /* calculates SHA1, truncate the result to 128 bits, and encrypt it */ | ||
221 | void im3_sign(uint32_t keyidx, void* data, uint32_t size, void* sign) | ||
222 | { | ||
223 | unsigned char hash[SHA1_SZ]; | ||
224 | sha1(data, size, hash); | ||
225 | memcpy(sign, hash, SIGN_SZ); | ||
226 | hwkeyaes(HWKEYAES_ENCRYPT, keyidx, sign, SIGN_SZ); | ||
227 | } | ||
228 | |||
229 | /* only supports enc_type 1 and 2 (UKEY) */ | ||
230 | void im3_crypt(enum hwkeyaes_direction direction, | ||
231 | struct Im3Info *hinfo, void *fw_addr) | ||
232 | { | ||
233 | uint32_t fw_size = get_uint32le(hinfo->data_sz); | ||
234 | hinfo->enc_type = (direction == HWKEYAES_ENCRYPT) ? 1 : 2; | ||
235 | im3_sign(HWKEYAES_UKEY, hinfo, IM3INFOSIGN_SZ, hinfo->info_sign); | ||
236 | hwkeyaes(direction, HWKEYAES_UKEY, fw_addr, fw_size); | ||
237 | } | ||
238 | |||
239 | int im3_read(uint32_t offset, struct Im3Info *hinfo, void *fw_addr) | ||
240 | { | ||
241 | unsigned char hash[SIGN_SZ]; | ||
242 | uint32_t fw_size; | ||
243 | |||
244 | /* header */ | ||
245 | bootflash_init(SPI_PORT); | ||
246 | bootflash_read(SPI_PORT, offset, IM3HDR_SZ, hinfo); | ||
247 | bootflash_close(SPI_PORT); | ||
248 | |||
249 | if (memcmp(hinfo, IM3_IDENT, 4) != 0) | ||
250 | return -1; /* OF not found */ | ||
251 | |||
252 | im3_sign(HWKEYAES_UKEY, hinfo, IM3INFOSIGN_SZ, hash); | ||
253 | if (memcmp(hash, hinfo->info_sign, SIGN_SZ) != 0) | ||
254 | return -2; /* corrupt header */ | ||
255 | |||
256 | fw_size = get_uint32le(hinfo->data_sz); | ||
257 | if ((fw_size > NORBOOT_MAXSZ - IM3HDR_SZ) || | ||
258 | (get_uint32le(hinfo->entry) > fw_size)) | ||
259 | return -3; /* wrong info */ | ||
260 | |||
261 | if (hinfo->enc_type != 1 && hinfo->enc_type != 2) | ||
262 | return -4; /* encrypt type not supported */ | ||
263 | |||
264 | if (fw_addr) | ||
265 | { | ||
266 | /* body */ | ||
267 | bootflash_init(SPI_PORT); | ||
268 | bootflash_read(SPI_PORT, offset + IM3HDR_SZ, fw_size, fw_addr); | ||
269 | bootflash_close(SPI_PORT); | ||
270 | if (hinfo->enc_type == 1) | ||
271 | im3_crypt(HWKEYAES_DECRYPT, hinfo, fw_addr); | ||
272 | im3_sign(HWKEYAES_UKEY, fw_addr, fw_size, hash); | ||
273 | if (memcmp(hash, hinfo->u.enc12.data_sign, SIGN_SZ) != 0) | ||
274 | return -5; /* corrupt data */ | ||
275 | } | ||
276 | |||
277 | return 0; | ||
278 | } | ||
279 | |||
280 | bool im3_write(int offset, void *im3_addr) | ||
281 | { | ||
282 | bool res; | ||
283 | struct Im3Info *hinfo = (struct Im3Info *)im3_addr; | ||
284 | uint32_t im3_size = get_uint32le(hinfo->data_sz) + IM3HDR_SZ; | ||
285 | bootflash_init(SPI_PORT); | ||
286 | bootflash_write(SPI_PORT, offset, im3_addr, im3_size); | ||
287 | /* check if the IM3 image was written correctly */ | ||
288 | res = !(bootflash_compare(SPI_PORT, offset, im3_addr, im3_size) & 1); | ||
289 | bootflash_close(SPI_PORT); | ||
290 | return res; | ||
291 | } | ||
292 | |||
293 | |||
294 | /* | ||
295 | * flsh FS | ||
296 | */ | ||
297 | unsigned flsh_get_unused(void) | ||
298 | { | ||
299 | unsigned tail = DIR_OFF; | ||
300 | bootflash_init(SPI_PORT); | ||
301 | for (int i = 0; i < MAX_ENTRY; i++) | ||
302 | { | ||
303 | image_t entry; | ||
304 | bootflash_read(SPI_PORT, DIR_OFF + ENTRY_SZ*i, ENTRY_SZ, &entry); | ||
305 | if (memcmp(entry.type, "hslf", 4)) | ||
306 | break; /* no more entries */ | ||
307 | if (entry.devOffset < tail) | ||
308 | tail = entry.devOffset; | ||
309 | } | ||
310 | bootflash_close(SPI_PORT); | ||
311 | return tail - (NORBOOT_OFF + NORBOOT_MAXSZ); | ||
312 | } | ||
313 | |||
314 | int flsh_find_file(char *name, image_t *entry) | ||
315 | { | ||
316 | int found = 0; | ||
317 | bootflash_init(SPI_PORT); | ||
318 | for (int off = 0; off < ENTRY_SZ*MAX_ENTRY; off += ENTRY_SZ) | ||
319 | { | ||
320 | bootflash_read(SPI_PORT, DIR_OFF+off, ENTRY_SZ, entry); | ||
321 | if (memcmp(&(entry->type), "hslf", 4)) | ||
322 | break; /* no more entries */ | ||
323 | if (!memcmp(&(entry->id), name, 4)) { | ||
324 | found = 1; | ||
325 | break; | ||
326 | } | ||
327 | } | ||
328 | bootflash_close(SPI_PORT); | ||
329 | return found; | ||
330 | } | ||
331 | |||
332 | #define KEYIDX_OFF 0x8 /* TBC */ | ||
333 | #define DATALEN_OFF 0x14 | ||
334 | #define DATASHA_OFF 0x1c | ||
335 | #define HEADSHA_OFF 0x1d4 | ||
336 | |||
337 | int flsh_load_file(image_t *entry, void *hdr, void *data) | ||
338 | { | ||
339 | uint8_t orig_hash[SHA1_SZ]; | ||
340 | uint8_t calc_hash[SHA1_SZ]; | ||
341 | uint32_t data_len; | ||
342 | |||
343 | /* header */ | ||
344 | bootflash_init(SPI_PORT); | ||
345 | bootflash_read(SPI_PORT, entry->devOffset, FILEHDR_SZ, hdr); | ||
346 | bootflash_close(SPI_PORT); | ||
347 | memcpy(orig_hash, hdr + HEADSHA_OFF, SHA1_SZ); | ||
348 | memset(hdr+HEADSHA_OFF, 0, SHA1_SZ); | ||
349 | sha1(hdr, FILEHDR_SZ, calc_hash); | ||
350 | if (memcmp(calc_hash, orig_hash, SHA1_SZ)) | ||
351 | return -1; /* corrupt header */ | ||
352 | memcpy(hdr+HEADSHA_OFF, orig_hash, SHA1_SZ); | ||
353 | data_len = ALIGN_UP(*(uint32_t*)(hdr+DATALEN_OFF), 0x10); | ||
354 | if (data_len > ALIGN_UP(entry->len, 0x10)) | ||
355 | return -2; /* bad size */ | ||
356 | |||
357 | if (data) | ||
358 | { | ||
359 | bootflash_init(SPI_PORT); | ||
360 | bootflash_read(SPI_PORT, entry->devOffset+FILEHDR_SZ, data_len, data); | ||
361 | bootflash_close(SPI_PORT); | ||
362 | hwkeyaes(HWKEYAES_DECRYPT, *(uint8_t*)(hdr+KEYIDX_OFF), data, data_len); | ||
363 | sha1(data, data_len, calc_hash); | ||
364 | if (memcmp(calc_hash, hdr+DATASHA_OFF, SHA1_SZ)) | ||
365 | return -3; /* corrupt data */ | ||
366 | } | ||
367 | |||
368 | return 0; | ||
369 | } | ||
diff --git a/firmware/target/arm/s5l8702/nor-target.h b/firmware/target/arm/s5l8702/nor-target.h new file mode 100644 index 0000000000..4ebe1d58d4 --- /dev/null +++ b/firmware/target/arm/s5l8702/nor-target.h | |||
@@ -0,0 +1,167 @@ | |||
1 | /*************************************************************************** | ||
2 | * __________ __ ___. | ||
3 | * Open \______ \ ____ ____ | | _\_ |__ _______ ___ | ||
4 | * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / | ||
5 | * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < | ||
6 | * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ | ||
7 | * \/ \/ \/ \/ \/ | ||
8 | * $Id: | ||
9 | * | ||
10 | * Copyright © 2009 Michael Sparmann | ||
11 | * | ||
12 | * This program is free software; you can redistribute it and/or | ||
13 | * modify it under the terms of the GNU General Public License | ||
14 | * as published by the Free Software Foundation; either version 2 | ||
15 | * of the License, or (at your option) any later version. | ||
16 | * | ||
17 | * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY | ||
18 | * KIND, either express or implied. | ||
19 | * | ||
20 | ****************************************************************************/ | ||
21 | #ifndef __NOR_TARGET_H__ | ||
22 | #define __NOR_TARGET_H__ | ||
23 | |||
24 | #include <stdint.h> | ||
25 | #include <stdbool.h> | ||
26 | |||
27 | #include "config.h" | ||
28 | #include "crypto-s5l8702.h" | ||
29 | |||
30 | |||
31 | /* NOR memory map (Classic 6G): | ||
32 | * | ||
33 | * 1MB ______________ | ||
34 | * | | | ||
35 | * | flsh DIR | | ||
36 | * 1MB-0x200 |______________| | ||
37 | * | | | ||
38 | * | File 1 | | ||
39 | * |..............| | ||
40 | * | | | ||
41 | * | File 2 | | ||
42 | * |..............| | ||
43 | * | | | ||
44 | * . . | ||
45 | * . . | ||
46 | * . . | ||
47 | * | | | ||
48 | * |..............| | ||
49 | * | | | ||
50 | * | File N | | ||
51 | * |______________| | ||
52 | * | | | ||
53 | * | | | ||
54 | * | | | ||
55 | * | | IM3 (128KB) | ||
56 | * | Unused | . . . . . . ______________ | ||
57 | * | | / | | | ||
58 | * | | / | | | ||
59 | * | | / | | | ||
60 | * 160KB |______________|/ | | | ||
61 | * | | | | | ||
62 | * | | | EFI | | ||
63 | * | Original | | Volumen | | ||
64 | * | NOR Boot | | | | ||
65 | * | | | | | ||
66 | * | | | | | ||
67 | * 32KB |______________| | | | ||
68 | * | |\ 0x800 |______________| | ||
69 | * | | \ | | | ||
70 | * | | \ | IM3 Header | | ||
71 | * |______________| \ . . . . . . |______________| | ||
72 | * | | | ||
73 | * | SysCfg | | ||
74 | * 0 |______________| | ||
75 | */ | ||
76 | |||
77 | #define SPI_PORT 0 | ||
78 | |||
79 | #define NOR_SZ 0x100000 | ||
80 | #define NORBOOT_OFF 0x8000 | ||
81 | #define NORBOOT_MAXSZ 0x20000 | ||
82 | |||
83 | void bootflash_init(int port); | ||
84 | void bootflash_read(int port, uint32_t addr, uint32_t size, void* buf); | ||
85 | void bootflash_write(int port, int offset, void* addr, int size); | ||
86 | int bootflash_compare(int port, int offset, void* addr, int size); | ||
87 | void bootflash_erase_blocks(int port, int first, int n); | ||
88 | void bootflash_close(int port); | ||
89 | |||
90 | |||
91 | /* | ||
92 | * IM3 | ||
93 | */ | ||
94 | #define IM3_IDENT "8702" | ||
95 | #define IM3_VERSION "1.0" | ||
96 | #define IM3HDR_SZ 0x800 | ||
97 | #define IM3INFO_SZ (sizeof(struct Im3Info)) | ||
98 | #define IM3INFOSIGN_SZ (offsetof(struct Im3Info, info_sign)) | ||
99 | |||
100 | #define SIGN_SZ 16 | ||
101 | |||
102 | struct Im3Info | ||
103 | { | ||
104 | uint8_t ident[4]; | ||
105 | uint8_t version[3]; | ||
106 | uint8_t enc_type; | ||
107 | uint8_t entry[4]; /* LE */ | ||
108 | uint8_t data_sz[4]; /* LE */ | ||
109 | union { | ||
110 | struct { | ||
111 | uint8_t data_sign[SIGN_SZ]; | ||
112 | uint8_t _reserved[32]; | ||
113 | } enc12; | ||
114 | struct { | ||
115 | uint8_t sign_off[4]; /* LE */ | ||
116 | uint8_t cert_off[4]; /* LE */ | ||
117 | uint8_t cert_sz[4]; /* LE */ | ||
118 | uint8_t _reserved[36]; | ||
119 | } enc34; | ||
120 | } u; | ||
121 | uint8_t info_sign[SIGN_SZ]; | ||
122 | } __attribute__ ((packed)); | ||
123 | |||
124 | struct Im3Hdr | ||
125 | { | ||
126 | struct Im3Info info; | ||
127 | uint8_t _zero[IM3HDR_SZ - sizeof(struct Im3Info)]; | ||
128 | } __attribute__ ((packed)); | ||
129 | |||
130 | unsigned im3_nor_sz(struct Im3Info* hinfo); | ||
131 | void im3_sign(uint32_t keyidx, void* data, uint32_t size, void* sign); | ||
132 | void im3_crypt(enum hwkeyaes_direction direction, | ||
133 | struct Im3Info *hinfo, void *fw_addr); | ||
134 | int im3_read(uint32_t offset, struct Im3Info *hinfo, void *fw_addr); | ||
135 | bool im3_write(int offset, void *im3_addr); | ||
136 | |||
137 | |||
138 | /* | ||
139 | * flsh FS | ||
140 | */ | ||
141 | #define DIR_SZ 0x200 | ||
142 | #define DIR_OFF (NOR_SZ - DIR_SZ) | ||
143 | #define ENTRY_SZ ((int)sizeof(image_t)) | ||
144 | #define MAX_ENTRY (DIR_SZ / ENTRY_SZ) | ||
145 | |||
146 | #define FILEHDR_SZ 0x200 | ||
147 | |||
148 | /* from tools/ipod_fw.c */ | ||
149 | typedef struct _image { | ||
150 | char type[4]; /* '' */ | ||
151 | unsigned id; /* */ | ||
152 | char pad1[4]; /* 0000 0000 */ | ||
153 | unsigned devOffset; /* byte offset of start of image code */ | ||
154 | unsigned len; /* length in bytes of image */ | ||
155 | unsigned addr; /* load address */ | ||
156 | unsigned entryOffset; /* execution start within image */ | ||
157 | unsigned chksum; /* checksum for image */ | ||
158 | unsigned vers; /* image version */ | ||
159 | unsigned loadAddr; /* load address for image */ | ||
160 | } image_t; | ||
161 | |||
162 | int flsh_get_info(int *used, int *unused); | ||
163 | unsigned flsh_get_unused(void); | ||
164 | int flsh_find_file(char *name, image_t *entry); | ||
165 | int flsh_load_file(image_t *entry, void *hdr, void *data); | ||
166 | |||
167 | #endif /* __NOR_TARGET_H__ */ | ||