diff options
author | Zachary T Welch <zw@superlucidity.net> | 2009-11-17 13:04:49 -0800 |
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committer | Zachary T Welch <zw@superlucidity.net> | 2009-11-19 13:39:41 -0800 |
commit | 870b8c04557f0b7441cc502debaf537984d77e2a (patch) | |
tree | 38f868b2f6f76890f35e794937e8cccb834e2a66 /src/flash/common.c | |
parent | 8f446fcf676e9cd13cf53d9946f0cae5d29a10ec (diff) |
allow flash/nand banks commands to accept names
Add get_flash_bank_by_name (and get_nand_device_by_name) helpers
to retrieves struct flash_bank * (struct nand_device *) given a
driver name and an (optional) driver-specific bank index.
These are used to extend flash_command_get_bank_by_num (and
nand_command_get_device_by_num) to allow all flash (nand) commands to
reference defined banks by name, not just by number.
To avoid some code duplication, add the flash/common.[ch] files to hold
functionality common to both types driver. The first two methods are
helpers for the above routines to find a bank specified by a "name" or
"name.index" string. get_flash_name_index() finds the '.index' portion,
while flash_driver_name_matches() performs the string portion matching.
Diffstat (limited to 'src/flash/common.c')
-rw-r--r-- | src/flash/common.c | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/src/flash/common.c b/src/flash/common.c new file mode 100644 index 00000000..253ed9d8 --- /dev/null +++ b/src/flash/common.c @@ -0,0 +1,46 @@ +/*************************************************************************** + * Copyright (C) 2009 by Zachary T Welch <zw@superlucidity.net> * + * * + * This program is free software; you can redistribute it and/or modify * + * it under the terms of the GNU General Public License as published by * + * the Free Software Foundation; either version 2 of the License, or * + * (at your option) any later version. * + * * + * This program 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 General Public License for more details. * + * * + * You should have received a copy of the GNU General Public License * + * along with this program; if not, write to the * + * Free Software Foundation, Inc., * + * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * + ***************************************************************************/ +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#include "common.h" +#include "log.h" + +unsigned get_flash_name_index(const char *name) +{ + const char *index = strchr(name, '.'); + if (NULL == index) + return 0; + unsigned requested; + int retval = parse_uint(index + 1, &requested); + // detect parsing error by forcing past end of bank list + return (ERROR_OK == retval) ? requested : ~0U; +} + +bool flash_driver_name_matches(const char *name, const char *expected) +{ + unsigned blen = strlen(name); + // only match up to the length of the driver name... + if (strncmp(name, expected, blen) != 0) + return false; + + // ...then check that name terminates at this spot. + return expected[blen] == '.' || expected[blen] == '\0'; +} |