7df63fcae0
Added --terse and --mailback options to the make stylecheck target. It also does continue even if it enounters a possible error. We decided on two exceptions from the linux kernel coding standard: - Empty wait while loops may end with ; on the same line. - All blocks after while, if, for have to be in brackets even if they only contain one statement. Otherwise it is easy to introduce an error. Checkpatch needs to be adapted to reflect those changes.
61 lines
1.7 KiB
C
61 lines
1.7 KiB
C
/*
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* This file is part of the libopencm3 project.
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*
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* Copyright (C) 2012 Karl Palsson <karlp@ŧweak.net.au>
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*
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* This library is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this library. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <libopencm3/stm32/desig.h>
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u16 desig_get_flash_size(void)
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{
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return DESIG_FLASH_SIZE;
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}
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void desig_get_unique_id(u32 result[])
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{
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/* Could also just return a pointer to the start? read it as they wish?
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*/
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u16 bits15_0 = DESIG_UID_15_0;
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u32 bits31_16 = DESIG_UID_31_16;
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u32 bits63_32 = DESIG_UID_63_32;
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u32 bits95_64 = DESIG_UID_95_64;
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result[0] = bits95_64;
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result[1] = bits63_32;
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result[2] = bits31_16 << 16 | bits15_0;
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}
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void desig_get_unique_id_as_string(char *string,
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unsigned int string_len)
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{
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int i, len;
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u8 device_id[12];
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static const char chars[] = "0123456789ABCDEF";
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desig_get_unique_id((u32 *)device_id);
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/* Each byte produces two characters */
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len = (2 * sizeof(device_id) < string_len) ?
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2 * sizeof(device_id) : string_len - 1;
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for (i = 0; i < len; i += 2) {
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string[i] = chars[(device_id[i / 2] >> 0) & 0x0F];
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string[i + 1] = chars[(device_id[i / 2] >> 4) & 0x0F];
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}
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string[len] = '\0';
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}
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