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authorFrank Gevaerts <frank@gevaerts.be>2009-08-11 20:03:59 +0000
committerFrank Gevaerts <frank@gevaerts.be>2009-08-11 20:03:59 +0000
commitceccec503e140ea70c0ac3ecf75c7f45c3fb7a0c (patch)
treef10a8775453386b9fe226cc620c6a4091f763aa8 /firmware/usbstack/usb_storage.c
parent2dc50471ca17eaeb24b45abce4c0f8944cd781d5 (diff)
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Move yearday_to_daymonth() to usb_storage.c. It's the only user, this function is pretty specific, and it seems to be the cleanest way to avoid ram usage increases for unrelated targets
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@22259 a1c6a512-1295-4272-9138-f99709370657
Diffstat (limited to 'firmware/usbstack/usb_storage.c')
-rw-r--r--firmware/usbstack/usb_storage.c25
1 files changed, 25 insertions, 0 deletions
diff --git a/firmware/usbstack/usb_storage.c b/firmware/usbstack/usb_storage.c
index a3664b074b..e6a45e613a 100644
--- a/firmware/usbstack/usb_storage.c
+++ b/firmware/usbstack/usb_storage.c
@@ -295,6 +295,31 @@ static enum {
SENDING_CSW
} state = WAITING_FOR_COMMAND;
+static void yearday_to_daymonth(int yd, int y, int *d, int *m)
+{
+ static const char tnl[] = { 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 };
+ static const char tl[] = { 31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 };
+ const char *t;
+ int i=0;
+
+ if((y%4 == 0 && y%100 != 0) || y%400 == 0)
+ {
+ t=tl;
+ }
+ else
+ {
+ t=tnl;
+ }
+
+ while(yd >= t[i] && i<12)
+ {
+ yd-=t[i];
+ i++;
+ }
+ *d = yd+1;
+ *m = i;
+}
+
#ifdef TOSHIBA_GIGABEAT_S
/* The Gigabeat S factory partition table contains invalid values for the