From patchwork Mon Jan 28 08:59:24 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Subject: [U-Boot,1/2] vsprintf: add ustrtoll function Date: Sun, 27 Jan 2013 22:59:24 -0000 From: Piotr Wilczek X-Patchwork-Id: 216124 Message-Id: <1359363565-19313-2-git-send-email-p.wilczek@samsung.com> To: u-boot@lists.denx.de Cc: Stephen Warren , Piotr Wilczek , Kyungmin Park , Tom Rini Add 'ustrtoull' function to convert size from string (ex: 1GiB) to unsigned long long type Signed-off-by: Piotr Wilczek Signed-off-by: Kyungmin Park --- include/exports.h | 1 + lib/vsprintf.c | 23 +++++++++++++++++++++++ 2 files changed, 24 insertions(+) diff --git a/include/exports.h b/include/exports.h index 6cf31aa..41d5085 100644 --- a/include/exports.h +++ b/include/exports.h @@ -24,6 +24,7 @@ int setenv (const char *varname, const char *varvalue); long simple_strtol(const char *cp,char **endp,unsigned int base); int strcmp(const char * cs,const char * ct); unsigned long ustrtoul(const char *cp, char **endp, unsigned int base); +unsigned long long ustrtoull(const char *cp, char **endp, unsigned int base); #if defined(CONFIG_CMD_I2C) int i2c_write (uchar, uint, int , uchar* , int); int i2c_read (uchar, uint, int , uchar* , int); diff --git a/lib/vsprintf.c b/lib/vsprintf.c index 3c432f8..533a96b 100644 --- a/lib/vsprintf.c +++ b/lib/vsprintf.c @@ -126,6 +126,29 @@ unsigned long ustrtoul(const char *cp, char **endp, unsigned int base) return result; } +unsigned long long ustrtoull(const char *cp, char **endp, unsigned int base) +{ + unsigned long long result = simple_strtoull(cp, endp, base); + switch (**endp) { + case 'G': + result *= 1024; + /* fall through */ + case 'M': + result *= 1024; + /* fall through */ + case 'K': + case 'k': + result *= 1024; + if ((*endp)[1] == 'i') { + if ((*endp)[2] == 'B') + (*endp) += 3; + else + (*endp) += 2; + } + } + return result; +} + unsigned long long simple_strtoull(const char *cp, char **endp, unsigned int base) {