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avrdude
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Initial support for string write

This commit is contained in:
MCUdude 2022-04-01 20:35:18 +02:00
parent f0f9059ade
commit 8f100f5df3
1 changed files with 36 additions and 14 deletions
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24
src/term.c
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@ -404,17 +404,26 @@ static int cmd_write(PROGRAMMER * pgm, struct avrpart * p,
uint8_t size;
bool is_float;
bool is_signed;
char * str_ptr;
// Data union
union {
float f;
int64_t ll;
uint8_t a[8];
};
} data = {.bytes_grown = 0, .size = 0, .is_float = false, .ll = 0, .is_signed = false};
} data = {
.bytes_grown = 0,
.size = 0,
.is_float = false,
.is_signed = false,
.str_ptr = NULL,
.ll = 0
};
for (i = start_offset; i < len + start_offset; i++) {
data.is_float = false;
data.size = 0;
data.str_ptr = NULL;
// Handle the next argument
if (i < argc - start_offset + 3) {
@ -452,6 +461,12 @@ static int cmd_write(PROGRAMMER * pgm, struct avrpart * p,
// Try single character
if (argv[i][0] == '\'' && argv[i][2] == '\'') {
data.ll = argv[i][1];
} else {
// Try string that starts and ends with quote
if (argv[i][0] == '\"' && argv[i][strlen(argv[i]) - 1] == '\"') {
data.str_ptr = calloc(strlen(argv[i])+0x10, sizeof(char));
strncpy(data.str_ptr, argv[i] + 1, strlen(argv[i]) - 2);
avrdude_message(MSG_INFO, "argv: %s, malloc: %s\n", argv[i], data.str_ptr);
} else {
avrdude_message(MSG_INFO, "\n%s (write): can't parse data \"%s\"\n",
progname, argv[i]);
@ -460,6 +475,7 @@ static int cmd_write(PROGRAMMER * pgm, struct avrpart * p,
}
}
}
}
// Print warning if data size might be ambiguous
bool is_hex = (strncmp(argv[i], "0x", 2) == 0);
@ -491,6 +507,11 @@ static int cmd_write(PROGRAMMER * pgm, struct avrpart * p,
data.size = 1;
}
}
if(data.str_ptr != NULL) {
for(int16_t j = 0; j < strlen(data.str_ptr); j++)
buf[i - start_offset + data.bytes_grown++] = (uint8_t)data.str_ptr[j];
free(data.str_ptr);
} else {
buf[i - start_offset + data.bytes_grown] = data.a[0];
if (llabs(data.ll) > 0x000000FF || data.size >= 2 || data.is_float)
buf[i - start_offset + ++data.bytes_grown] = data.a[1];
@ -505,6 +526,7 @@ static int cmd_write(PROGRAMMER * pgm, struct avrpart * p,
buf[i - start_offset + ++data.bytes_grown] = data.a[7];
}
}
}
// When in "fill" mode, the maximum size is already predefined
if (write_mode == WRITE_MODE_FILL)