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Diffstat (limited to 'src/flash')
-rw-r--r--src/flash/flash.c250
-rw-r--r--src/flash/flash.h2
2 files changed, 140 insertions, 112 deletions
diff --git a/src/flash/flash.c b/src/flash/flash.c
index 4481fc63..19d5c3c5 100644
--- a/src/flash/flash.c
+++ b/src/flash/flash.c
@@ -514,9 +514,9 @@ int handle_flash_write_image_command(struct command_context_s *cmd_ctx, char *cm
target_t *target = get_current_target(cmd_ctx);
image_t image;
- u32 image_size;
+ u32 written;
char *error_str;
- u32 *failed;
+ int *failed;
int i;
@@ -564,9 +564,9 @@ int handle_flash_write_image_command(struct command_context_s *cmd_ctx, char *cm
return ERROR_OK;
}
- failed = malloc(sizeof(u32) * image.num_sections);
+ failed = malloc(sizeof(int) * image.num_sections);
- if ((retval = flash_write(target, &image, &image_size, &error_str, failed)) != ERROR_OK)
+ if ((retval = flash_write(target, &image, &written, &error_str, failed)) != ERROR_OK)
{
command_print(cmd_ctx, "failed writing image %s: %s", args[0], error_str);
free(error_str);
@@ -583,8 +583,8 @@ int handle_flash_write_image_command(struct command_context_s *cmd_ctx, char *cm
duration_stop_measure(&duration, &duration_text);
command_print(cmd_ctx, "wrote %u byte from file %s in %s (%f kb/s)",
- image_size, args[0], duration_text,
- (float)image_size / 1024.0 / ((float)duration.duration.tv_sec + ((float)duration.duration.tv_usec / 1000000.0)));
+ written, args[0], duration_text,
+ (float)written / 1024.0 / ((float)duration.duration.tv_sec + ((float)duration.duration.tv_usec / 1000000.0)));
free(duration_text);
image_close(&image);
@@ -736,132 +736,160 @@ int flash_erase(target_t *target, u32 addr, u32 length)
return c->driver->erase(c, first, last);
}
-int flash_write(target_t *target, image_t *image, u32 *image_size, char **error_str, u32 *failed)
+/* write an image to flash memory of the given target */
+int flash_write(target_t *target, image_t *image, u32 *written, char **error_str, int *failed)
{
- int last_section;
- int section;
- int next_section;
int retval;
-
- *image_size = 0;
-
- /* for each section in the image */
- last_section = 0;
+ int i;
+
+ int section;
+ u32 section_offset;
+
section = 0;
+ section_offset = 0;
+
+ if (written)
+ *written = 0;
+
+ if (failed != NULL)
+ for (i = 0; i < image->num_sections; i++)
+ failed[i] = 0;
+
+ /* loop until we reach end of the image */
while (section < image->num_sections)
{
- u32 offset = 0;
- u32 address = image->sections[section].base_address;
- u32 size = image->sections[section].size;
-
- /* collect consecutive sections */
- next_section = section + 1;
- while ((next_section < image->num_sections)
- && (image->sections[next_section].base_address == (address + size)))
+ flash_bank_t *c;
+ u32 buffer_size;
+ u8 *buffer;
+ int section_first;
+ int section_last;
+ u32 run_address = image->sections[section].base_address+section_offset;
+ u32 run_size = image->sections[section].size-section_offset;
+
+ if (image->sections[section].size == 0)
{
- size += image->sections[next_section].size;
- next_section++;
+ WARNING("empty section %d", section);
+ section++;
+ section_offset = 0;
+ continue;
}
-
- while (size != 0)
+
+ /* find the corresponding flash bank */
+ if ((c = get_flash_bank_by_addr(target, run_address)) == NULL)
{
- flash_bank_t *c;
- u32 thisrun_size = size;
- u32 buffer_size;
- u32 size_read;
- u8 *buffer;
-
- /* find the corresponding flash bank */
- if ((c = get_flash_bank_by_addr(target, address)) == NULL)
+ if (failed == NULL)
{
- /* mark as failed, and skip the current section */
- failed[section] = 1;
- break;
+ if (error_str == NULL)
+ return ERROR_FLASH_DST_OUT_OF_BANK; /* abort operation */
+ *error_str = malloc(FLASH_MAX_ERROR_STR);
+ snprintf(*error_str, FLASH_MAX_ERROR_STR, "no flash mapped at requested address");
+ return ERROR_FLASH_DST_OUT_OF_BANK; /* abort operation */
}
-
- /* check whether cumulated sections fit the bank, split into multiple runs if not */
- if ((address + size) > (c->base + c->size))
- thisrun_size = c->base + c->size - address;
+ failed[section] = ERROR_FLASH_DST_OUT_OF_BANK; /* mark the section as failed */
+ section++; /* and skip it */
+ section_offset = 0;
+ continue;
+ }
+
+ /* collect consecutive sections which fall into the same bank */
+ section_first = section;
+ section_last = section;
+ while ((run_address + run_size < c->base + c->size)
+ && (section_last + 1 < image->num_sections))
+ {
+ if (image->sections[section_last + 1].base_address > (run_address + run_size))
+ break;
+ if (image->sections[section_last + 1].base_address < (run_address + run_size))
+ WARNING("section %d out of order", section_last + 1);
+ run_size += image->sections[++section_last].size;
+ }
+
+ /* fit the run into bank constraints */
+ if (run_address + run_size > c->base + c->size)
+ run_size = c->base + c->size - run_address;
+
+ /* allocate buffer */
+ buffer = malloc(run_size);
+ buffer_size = 0;
- buffer = malloc(thisrun_size);
- buffer_size = 0;
+ /* read sections to the buffer */
+ while (buffer_size < run_size)
+ {
+ u32 size_read;
+
+ if (buffer_size - run_size <= image->sections[section].size - section_offset)
+ size_read = buffer_size - run_size;
+ else
+ size_read = image->sections[section].size - section_offset;
- while (buffer_size < thisrun_size)
+ if ((retval = image_read_section(image, section, section_offset,
+ size_read, buffer + buffer_size, &size_read)) != ERROR_OK || size_read == 0)
{
- u32 thissection_size = image->sections[section].size - offset;
+ free(buffer);
- if ((retval = image_read_section(image, section, offset,
- MIN(thisrun_size, thissection_size),
- buffer + buffer_size, &size_read)) != ERROR_OK)
- {
- *error_str = malloc(FLASH_MAX_ERROR_STR);
- snprintf(*error_str, FLASH_MAX_ERROR_STR, "error reading from image");
+ if (error_str == NULL)
return ERROR_IMAGE_TEMPORARILY_UNAVAILABLE;
- }
- /* see if we're done with the current section */
- if (thissection_size < thisrun_size)
- {
- /* start with the next section */
- offset = 0;
- failed[section] = 0;
- section++;
- }
- else
- {
- /* continue inside the current section */
- offset += size_read;
- }
+ *error_str = malloc(FLASH_MAX_ERROR_STR);
- buffer_size += size_read;
+ /* if image_read_section returned an error there's an error string we can pass on */
+ if (retval != ERROR_OK)
+ snprintf(*error_str, FLASH_MAX_ERROR_STR, "error reading from image: %s", image->error_str);
+ else
+
+ snprintf(*error_str, FLASH_MAX_ERROR_STR, "error reading from image");
+ return ERROR_IMAGE_TEMPORARILY_UNAVAILABLE;
}
-
- if ((retval = c->driver->write(c, buffer, address - c->base, thisrun_size)) != ERROR_OK)
+
+ buffer_size += size_read;
+ section_offset += size_read;
+
+ if (section_offset >= image->sections[section].size)
{
- int i;
- /* mark sections as failed */
- for (i = last_section; i <= section; i++)
- failed[i] = 1;
-
- *error_str = malloc(FLASH_MAX_ERROR_STR);
- switch (retval)
- {
- case ERROR_TARGET_NOT_HALTED:
- snprintf(*error_str, FLASH_MAX_ERROR_STR, "can't flash image while target is running");
- break;
- case ERROR_INVALID_ARGUMENTS:
- snprintf(*error_str, FLASH_MAX_ERROR_STR, "flash driver can't fulfill request");
- break;
- case ERROR_FLASH_OPERATION_FAILED:
- snprintf(*error_str, FLASH_MAX_ERROR_STR, "flash program error");
- break;
- case ERROR_FLASH_DST_BREAKS_ALIGNMENT:
- snprintf(*error_str, FLASH_MAX_ERROR_STR, "offset breaks required alignment");
- break;
- case ERROR_FLASH_DST_OUT_OF_BANK:
- snprintf(*error_str, FLASH_MAX_ERROR_STR, "no flash mapped at requested address");
- break;
- case ERROR_FLASH_SECTOR_NOT_ERASED:
- snprintf(*error_str, FLASH_MAX_ERROR_STR, "destination sector(s) not erased");
- break;
- default:
- snprintf(*error_str, FLASH_MAX_ERROR_STR, "unknown error: %i", retval);
- }
-
- free(buffer);
-
- /* abort operation */
- return retval;
+ section++;
+ section_offset = 0;
}
-
- free(buffer);
-
- address += thisrun_size;
- size -= thisrun_size;
- *image_size += thisrun_size;
- last_section = section;
}
+
+ retval = c->driver->write(c, buffer, run_address - c->base, run_size);
+ free(buffer);
+
+ if (retval != ERROR_OK)
+ {
+ if (error_str == NULL)
+ return retval; /* abort operation */
+
+ *error_str = malloc(FLASH_MAX_ERROR_STR);
+ switch (retval)
+ {
+ case ERROR_TARGET_NOT_HALTED:
+ snprintf(*error_str, FLASH_MAX_ERROR_STR, "can't flash image while target is running");
+ break;
+ case ERROR_INVALID_ARGUMENTS:
+ snprintf(*error_str, FLASH_MAX_ERROR_STR, "flash driver can't fulfill request");
+ break;
+ case ERROR_FLASH_OPERATION_FAILED:
+ snprintf(*error_str, FLASH_MAX_ERROR_STR, "flash program error");
+ break;
+ case ERROR_FLASH_DST_BREAKS_ALIGNMENT:
+ snprintf(*error_str, FLASH_MAX_ERROR_STR, "offset breaks required alignment");
+ break;
+ case ERROR_FLASH_DST_OUT_OF_BANK:
+ snprintf(*error_str, FLASH_MAX_ERROR_STR, "no flash mapped at requested address");
+ break;
+ case ERROR_FLASH_SECTOR_NOT_ERASED:
+ snprintf(*error_str, FLASH_MAX_ERROR_STR, "destination sector(s) not erased");
+ break;
+ default:
+ snprintf(*error_str, FLASH_MAX_ERROR_STR, "unknown error: %i", retval);
+ }
+
+ return retval; /* abort operation */
+ }
+
+ if (written != NULL)
+ *written += run_size; /* add run size to total written counter */
}
-
+
return ERROR_OK;
}
diff --git a/src/flash/flash.h b/src/flash/flash.h
index 513ede81..7ba6ff54 100644
--- a/src/flash/flash.h
+++ b/src/flash/flash.h
@@ -67,7 +67,7 @@ extern int flash_register_commands(struct command_context_s *cmd_ctx);
extern int flash_init(struct command_context_s *cmd_ctx);
extern int flash_erase(target_t *target, u32 addr, u32 length);
-extern int flash_write(target_t *target, image_t *image, u32 *image_size, char **error, u32 *failed);
+extern int flash_write(target_t *target, image_t *image, u32 *written, char **error, int *failed);
extern flash_bank_t *get_flash_bank_by_num(int num);
extern flash_bank_t *get_flash_bank_by_addr(target_t *target, u32 addr);
generated by cgit v1.2.3 (git 2.46.0) at 2024-11-01 18:58:41 +0000