2 * This file is part of the flashrom project.
4 * Copyright (C) 2000 Silicon Integrated System Corporation
5 * Copyright (C) 2000 Ronald G. Minnich <rminnich@gmail.com>
6 * Copyright (C) 2005-2009 coresystems GmbH
7 * Copyright (C) 2006-2009 Carl-Daniel Hailfinger
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
35 #define ERROR_PTR ((void*)-1)
38 #define ERROR_OOM -100
39 #define TIMEOUT_ERROR -101
41 typedef unsigned long chipaddr;
43 int register_shutdown(int (*function) (void *data), void *data);
44 void *programmer_map_flash_region(const char *descr, unsigned long phys_addr,
46 void programmer_unmap_flash_region(void *virt_addr, size_t len);
47 void programmer_delay(int usecs);
49 #define ARRAY_SIZE(a) (sizeof(a) / sizeof((a)[0]))
53 BUS_PARALLEL = 1 << 0,
58 BUS_NONSPI = BUS_PARALLEL | BUS_LPC | BUS_FWH,
62 * How many different contiguous runs of erase blocks with one size each do
63 * we have for a given erase function?
65 #define NUM_ERASEREGIONS 5
68 * How many different erase functions do we have per chip?
69 * Atmel AT25FS010 has 6 different functions.
71 #define NUM_ERASEFUNCTIONS 6
73 #define FEATURE_REGISTERMAP (1 << 0)
74 #define FEATURE_BYTEWRITES (1 << 1)
75 #define FEATURE_LONG_RESET (0 << 4)
76 #define FEATURE_SHORT_RESET (1 << 4)
77 #define FEATURE_EITHER_RESET FEATURE_LONG_RESET
78 #define FEATURE_RESET_MASK (FEATURE_LONG_RESET | FEATURE_SHORT_RESET)
79 #define FEATURE_ADDR_FULL (0 << 2)
80 #define FEATURE_ADDR_MASK (3 << 2)
81 #define FEATURE_ADDR_2AA (1 << 2)
82 #define FEATURE_ADDR_AAA (2 << 2)
83 #define FEATURE_ADDR_SHIFTED (1 << 5)
84 #define FEATURE_WRSR_EWSR (1 << 6)
85 #define FEATURE_WRSR_WREN (1 << 7)
86 #define FEATURE_OTP (1 << 8)
87 #define FEATURE_WRSR_EITHER (FEATURE_WRSR_EWSR | FEATURE_WRSR_WREN)
95 enum chipbustype bustype;
98 * With 32bit manufacture_id and model_id we can cover IDs up to
99 * (including) the 4th bank of JEDEC JEP106W Standard Manufacturer's
100 * Identification code.
102 uint32_t manufacture_id;
105 /* Total chip size in kilobytes */
106 unsigned int total_size;
107 /* Chip page size in bytes */
108 unsigned int page_size;
112 * Indicate if flashrom has been tested with this flash chip and if
113 * everything worked correctly.
117 int (*probe) (struct flashctx *flash);
119 /* Delay after "enter/exit ID mode" commands in microseconds.
120 * NB: negative values have special meanings, see TIMING_* below.
122 signed int probe_timing;
125 * Erase blocks and associated erase function. Any chip erase function
126 * is stored as chip-sized virtual block together with said function.
127 * The first one that fits will be chosen. There is currently no way to
128 * influence that behaviour. For testing just comment out the other
129 * elements or set the function pointer to NULL.
131 struct block_eraser {
133 unsigned int size; /* Eraseblock size in bytes */
134 unsigned int count; /* Number of contiguous blocks with that size */
135 } eraseblocks[NUM_ERASEREGIONS];
136 /* a block_erase function should try to erase one block of size
137 * 'blocklen' at address 'blockaddr' and return 0 on success. */
138 int (*block_erase) (struct flashctx *flash, unsigned int blockaddr, unsigned int blocklen);
139 } block_erasers[NUM_ERASEFUNCTIONS];
141 int (*printlock) (struct flashctx *flash);
142 int (*unlock) (struct flashctx *flash);
143 int (*write) (struct flashctx *flash, uint8_t *buf, unsigned int start, unsigned int len);
144 int (*read) (struct flashctx *flash, uint8_t *buf, unsigned int start, unsigned int len);
151 /* struct flashctx must always contain struct flashchip at the beginning. */
155 enum chipbustype bustype;
156 uint32_t manufacture_id;
162 int (*probe) (struct flashctx *flash);
164 struct block_eraser block_erasers[NUM_ERASEFUNCTIONS];
165 int (*printlock) (struct flashctx *flash);
166 int (*unlock) (struct flashctx *flash);
167 int (*write) (struct flashctx *flash, uint8_t *buf, unsigned int start, unsigned int len);
168 int (*read) (struct flashctx *flash, uint8_t *buf, unsigned int start, unsigned int len);
169 struct voltage voltage;
170 /* struct flashchip ends here. */
172 chipaddr virtual_memory;
173 /* Some flash devices have an additional register space. */
174 chipaddr virtual_registers;
175 struct registered_programmer *pgm;
178 typedef int (erasefunc_t)(struct flashctx *flash, unsigned int addr, unsigned int blocklen);
180 #define TEST_UNTESTED 0
182 #define TEST_OK_PROBE (1 << 0)
183 #define TEST_OK_READ (1 << 1)
184 #define TEST_OK_ERASE (1 << 2)
185 #define TEST_OK_WRITE (1 << 3)
186 #define TEST_OK_PR (TEST_OK_PROBE | TEST_OK_READ)
187 #define TEST_OK_PRE (TEST_OK_PROBE | TEST_OK_READ | TEST_OK_ERASE)
188 #define TEST_OK_PRW (TEST_OK_PROBE | TEST_OK_READ | TEST_OK_WRITE)
189 #define TEST_OK_PREW (TEST_OK_PROBE | TEST_OK_READ | TEST_OK_ERASE | TEST_OK_WRITE)
190 #define TEST_OK_MASK 0x0f
192 #define TEST_BAD_PROBE (1 << 4)
193 #define TEST_BAD_READ (1 << 5)
194 #define TEST_BAD_ERASE (1 << 6)
195 #define TEST_BAD_WRITE (1 << 7)
196 #define TEST_BAD_PREW (TEST_BAD_PROBE | TEST_BAD_READ | TEST_BAD_ERASE | TEST_BAD_WRITE)
197 #define TEST_BAD_MASK 0xf0
199 /* Timing used in probe routines. ZERO is -2 to differentiate between an unset
200 * field and zero delay.
202 * SPI devices will always have zero delay and ignore this field.
204 #define TIMING_FIXME -1
205 /* this is intentionally same value as fixme */
206 #define TIMING_IGNORED -1
207 #define TIMING_ZERO -2
209 extern const struct flashchip flashchips[];
211 void chip_writeb(const struct flashctx *flash, uint8_t val, chipaddr addr);
212 void chip_writew(const struct flashctx *flash, uint16_t val, chipaddr addr);
213 void chip_writel(const struct flashctx *flash, uint32_t val, chipaddr addr);
214 void chip_writen(const struct flashctx *flash, uint8_t *buf, chipaddr addr, size_t len);
215 uint8_t chip_readb(const struct flashctx *flash, const chipaddr addr);
216 uint16_t chip_readw(const struct flashctx *flash, const chipaddr addr);
217 uint32_t chip_readl(const struct flashctx *flash, const chipaddr addr);
218 void chip_readn(const struct flashctx *flash, uint8_t *buf, const chipaddr addr, size_t len);
221 char *flashbuses_to_text(enum chipbustype bustype);
222 void print_supported(void);
223 void print_supported_wiki(void);
226 enum write_granularity {
231 extern int verbose_screen;
232 extern int verbose_logfile;
233 extern const char flashrom_version[];
234 extern char *chip_to_probe;
235 void map_flash_registers(struct flashctx *flash);
236 int read_memmapped(struct flashctx *flash, uint8_t *buf, unsigned int start, unsigned int len);
237 int erase_flash(struct flashctx *flash);
238 int probe_flash(struct registered_programmer *pgm, int startchip, struct flashctx *fill_flash, int force);
239 int read_flash_to_file(struct flashctx *flash, const char *filename);
240 int min(int a, int b);
241 int max(int a, int b);
242 void tolower_string(char *str);
243 char *extract_param(char **haystack, const char *needle, const char *delim);
244 int verify_range(struct flashctx *flash, uint8_t *cmpbuf, unsigned int start, unsigned int len, const char *message);
245 int need_erase(uint8_t *have, uint8_t *want, unsigned int len, enum write_granularity gran);
246 char *strcat_realloc(char *dest, const char *src);
247 void print_version(void);
248 void print_buildinfo(void);
249 void print_banner(void);
250 void list_programmers_linebreak(int startcol, int cols, int paren);
252 int doit(struct flashctx *flash, int force, const char *filename, int read_it, int write_it, int erase_it, int verify_it);
253 int read_buf_from_file(unsigned char *buf, unsigned long size, const char *filename);
254 int write_buf_to_file(unsigned char *buf, unsigned long size, const char *filename);
258 NT = 1, /* Not tested */
262 /* Something happened that shouldn't happen, but we can go on. */
263 #define ERROR_NONFATAL 0x100
265 /* Something happened that shouldn't happen, we'll abort. */
266 #define ERROR_FATAL -0xee
267 #define ERROR_FLASHROM_BUG -200
268 /* We reached one of the hardcoded limits of flashrom. This can be fixed by
269 * increasing the limit of a compile-time allocation or by switching to dynamic
271 * Note: If this warning is triggered, check first for runaway registrations.
273 #define ERROR_FLASHROM_LIMIT -201
277 int open_logfile(const char * const filename);
278 int close_logfile(void);
279 void start_logging(void);
288 /* Let gcc and clang check for correct printf-style format strings. */
289 int print(enum msglevel level, const char *fmt, ...) __attribute__((format(printf, 2, 3)));
290 #define msg_gerr(...) print(MSG_ERROR, __VA_ARGS__) /* general errors */
291 #define msg_perr(...) print(MSG_ERROR, __VA_ARGS__) /* programmer errors */
292 #define msg_cerr(...) print(MSG_ERROR, __VA_ARGS__) /* chip errors */
293 #define msg_ginfo(...) print(MSG_INFO, __VA_ARGS__) /* general info */
294 #define msg_pinfo(...) print(MSG_INFO, __VA_ARGS__) /* programmer info */
295 #define msg_cinfo(...) print(MSG_INFO, __VA_ARGS__) /* chip info */
296 #define msg_gdbg(...) print(MSG_DEBUG, __VA_ARGS__) /* general debug */
297 #define msg_pdbg(...) print(MSG_DEBUG, __VA_ARGS__) /* programmer debug */
298 #define msg_cdbg(...) print(MSG_DEBUG, __VA_ARGS__) /* chip debug */
299 #define msg_gdbg2(...) print(MSG_DEBUG2, __VA_ARGS__) /* general debug2 */
300 #define msg_pdbg2(...) print(MSG_DEBUG2, __VA_ARGS__) /* programmer debug2 */
301 #define msg_cdbg2(...) print(MSG_DEBUG2, __VA_ARGS__) /* chip debug2 */
302 #define msg_gspew(...) print(MSG_SPEW, __VA_ARGS__) /* general debug spew */
303 #define msg_pspew(...) print(MSG_SPEW, __VA_ARGS__) /* programmer debug spew */
304 #define msg_cspew(...) print(MSG_SPEW, __VA_ARGS__) /* chip debug spew */
307 int register_include_arg(char *name);
308 int process_include_args(void);
309 int read_romlayout(char *name);
310 int handle_romentries(struct flashctx *flash, uint8_t *oldcontents, uint8_t *newcontents);
314 unsigned int writecnt;
315 unsigned int readcnt;
316 const unsigned char *writearr;
317 unsigned char *readarr;
319 int spi_send_command(struct flashctx *flash, unsigned int writecnt, unsigned int readcnt, const unsigned char *writearr, unsigned char *readarr);
320 int spi_send_multicommand(struct flashctx *flash, struct spi_command *cmds);
321 uint32_t spi_get_valid_read_addr(struct flashctx *flash);
323 enum chipbustype get_buses_supported(void);
324 #endif /* !__FLASH_H__ */