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stm32: desig: refactor to allow targets to have different addresses

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In this commit, support for the different base addresses for different
F7 parts is added, but the mechanism is now in place for L1 and others.

Reviewed-by: Karl Palsson <karlp@tweak.net.au>
(whitespace fixed, commit msg reworded)
This commit is contained in:
Matthew Lai
2019-09-25 12:47:55 +01:00
committed by Karl Palsson
parent f1b4a4dfff
commit 97688b913e
14 changed files with 148 additions and 54 deletions
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66
lib/stm32/common/desig_common_all.c Normal file
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/*
* This file is part of the libopencm3 project.
*
* Copyright (C) 2012 Karl Palsson <karlp@ŧweak.net.au>
*
* This library is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
#include <libopencm3/stm32/desig.h>
void desig_get_unique_id_as_string(char *string, unsigned int string_len)
{
int i, len;
uint32_t uid_buf[3];
uint8_t *uid = (uint8_t *)uid_buf;
const char chars[] = "0123456789ABCDEF";
desig_get_unique_id(uid_buf);
/* Each byte produces two characters */
len = (2 * sizeof(uid_buf) < string_len) ?
2 * sizeof(uid_buf) : string_len - 1;
for (i = 0; i < len; i += 2) {
string[i] = chars[(uid[i / 2] >> 4) & 0x0F];
string[i + 1] = chars[(uid[i / 2] >> 0) & 0x0F];
}
string[len] = '\0';
}
void desig_get_unique_id_as_dfu(char *string) {
uint32_t uid_buf[3];
uint8_t *uid = (uint8_t *)uid_buf;
desig_get_unique_id(uid_buf);
uint8_t serial[6];
serial[0] = uid[11];
serial[1] = uid[10] + uid[2];
serial[2] = uid[9];
serial[3] = uid[8] + uid[0];
serial[4] = uid[7];
serial[5] = uid[6];
uint8_t *ser = &serial[0];
uint8_t *end = &serial[6];
const char hex_digit[] = "0123456789ABCDEF";
for (; ser < end; ser++) {
*string++ = hex_digit[(*ser >> 4) & 0x0f];
*string++ = hex_digit[(*ser >> 0) & 0x0f];
}
*string = '\0';
}

32
lib/stm32/common/desig_common_v1.c Normal file
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/*
* This file is part of the libopencm3 project.
*
* Copyright (C) 2012 Karl Palsson <karlp@ŧweak.net.au>
*
* This library is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
#include <libopencm3/stm32/desig.h>
uint16_t desig_get_flash_size(void)
{
return *((uint32_t*)DESIG_FLASH_SIZE_BASE);
}
void desig_get_unique_id(uint32_t *result)
{
*result++ = DESIG_UNIQUE_ID2;
*result++ = DESIG_UNIQUE_ID1;
*result = DESIG_UNIQUE_ID0;
}