stmhal, fatfs: Use stdlib for string fns; make all private fns static.
We save some code bytes by using builtin string functions.
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3a2795e200
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41249e17c3
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@ -540,15 +540,15 @@ const BYTE ExCvt[] = _EXCVT; /* Upper conversion table for extended characters *
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Module Private Functions
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---------------------------------------------------------------------------*/
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DWORD clust2sect (FATFS* fs, DWORD clst);
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DWORD get_fat (FATFS* fs, DWORD clst);
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static DWORD clust2sect (FATFS* fs, DWORD clst);
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static DWORD get_fat (FATFS* fs, DWORD clst);
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#if !_FS_READONLY
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FRESULT put_fat (FATFS* fs, DWORD clst, DWORD val);
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static FRESULT put_fat (FATFS* fs, DWORD clst, DWORD val);
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#endif /* !_FS_READONLY */
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#if _USE_LFN
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void gen_numname (BYTE* dst, const BYTE* src, const WCHAR* lfn, WORD seq);
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static void gen_numname (BYTE* dst, const BYTE* src, const WCHAR* lfn, WORD seq);
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#endif /* !_USE_LFN */
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/*-----------------------------------------------------------------------*/
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@ -556,6 +556,11 @@ void gen_numname (BYTE* dst, const BYTE* src, const WCHAR* lfn, WORD seq);
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/*-----------------------------------------------------------------------*/
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/* Copy memory to memory */
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#if 1
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// We use the original custom version of mem_cpy so that gcc doesn't
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// recognise the builtin function and then inline it. Allowing gcc
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// to use the builtin memcpy increases code size by 64 bytes.
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// TODO need a better (less ad-hoc) way to control this.
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static
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void mem_cpy (void* dst, const void* src, UINT cnt) {
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BYTE *d = (BYTE*)dst;
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@ -571,8 +576,13 @@ void mem_cpy (void* dst, const void* src, UINT cnt) {
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while (cnt--)
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*d++ = *s++;
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}
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#else
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// use stdlib
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#define mem_cpy memcpy
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#endif
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/* Fill memory */
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#if 0
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static
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void mem_set (void* dst, int val, UINT cnt) {
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BYTE *d = (BYTE*)dst;
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@ -580,8 +590,13 @@ void mem_set (void* dst, int val, UINT cnt) {
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while (cnt--)
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*d++ = (BYTE)val;
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}
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#else
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// use stdlib
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#define mem_set memset
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#endif
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/* Compare memory to memory */
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#if 0
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static
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int mem_cmp (const void* dst, const void* src, UINT cnt) {
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const BYTE *d = (const BYTE *)dst, *s = (const BYTE *)src;
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@ -590,6 +605,10 @@ int mem_cmp (const void* dst, const void* src, UINT cnt) {
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while (cnt-- && (r = *d++ - *s++) == 0) ;
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return r;
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}
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#else
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// use stdlib
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#define mem_cmp memcmp
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#endif
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/* Check if chr is contained in the string */
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static
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@ -842,6 +861,7 @@ FRESULT sync_fs ( /* FR_OK: successful, FR_DISK_ERR: failed */
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/*-----------------------------------------------------------------------*/
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static
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DWORD clust2sect ( /* !=0: Sector number, 0: Failed - invalid cluster# */
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FATFS* fs, /* File system object */
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DWORD clst /* Cluster# to be converted */
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@ -860,6 +880,7 @@ DWORD clust2sect ( /* !=0: Sector number, 0: Failed - invalid cluster# */
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/*-----------------------------------------------------------------------*/
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static
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DWORD get_fat ( /* 0xFFFFFFFF:Disk error, 1:Internal error, Else:Cluster status */
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FATFS* fs, /* File system object */
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DWORD clst /* Cluster# to get the link information */
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@ -903,6 +924,7 @@ DWORD get_fat ( /* 0xFFFFFFFF:Disk error, 1:Internal error, Else:Cluster status
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/*-----------------------------------------------------------------------*/
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#if !_FS_READONLY
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static
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FRESULT put_fat (
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FATFS* fs, /* File system object */
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DWORD clst, /* Cluster# to be changed in range of 2 to fs->n_fatent - 1 */
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@ -1401,6 +1423,7 @@ void fit_lfn (
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/* Create numbered name */
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/*-----------------------------------------------------------------------*/
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#if _USE_LFN
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static
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void gen_numname (
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BYTE* dst, /* Pointer to generated SFN */
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const BYTE* src, /* Pointer to source SFN to be modified */
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