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Change "//" to "/* */" comment. Removed unreferred functions.

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This commit is contained in:
Takashi Kojo 2015-11-12 15:31:58 +09:00
parent 866b1517d3
commit 302fd05edd
1 changed files with 28 additions and 43 deletions
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71
wolfcrypt/src/port/pic32/pic32mz-hash.c
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@ -72,7 +72,7 @@ static void reset_engine(pic32mz_desc *desc, int algo)
uc_desc->bd[i].NXTPTR = KVA_TO_PA(&uc_desc->bd[0]);
XMEMSET((void *)&dataBuffer[i], 0, PIC32_BLOCK_SIZE);
}
uc_desc->bd[0].BD_CTRL.SA_FETCH_EN = 1; // Fetch the security association on the first BD
uc_desc->bd[0].BD_CTRL.SA_FETCH_EN = 1; /* Fetch the security association on the first BD */
desc->dbPtr = 0;
desc->currBd = 0;
desc->msgSize = 0;
@ -86,49 +86,45 @@ static void reset_engine(pic32mz_desc *desc, int algo)
#define PIC32MZ_IF_RAM(addr) (KVA_TO_PA(addr) < 0x80000)
static void update_data_size(pic32mz_desc *desc, word32 msgSize)
{
desc->msgSize = msgSize;
}
static void update_engine(pic32mz_desc *desc, const char *input, word32 len,
static void update_engine(pic32mz_desc *desc, const byte *input, word32 len,
word32 *hash)
{
int total ;
pic32mz_desc *uc_desc = KVA0_TO_KVA1(desc);
uc_desc->bd[desc->currBd].UPDPTR = KVA_TO_PA(hash);
// Add the data to the current buffer. If the buffer fills, start processing it
// and fill the next one.
/* Add the data to the current buffer. If the buffer fills, start processing it
and fill the next one. */
while (len)
{
// If the engine is processing the current BD, spin.
// if (uc_desc->bd[desc->currBd].BD_CTRL.DESC_EN)
// continue;
/* If the engine is processing the current BD, spin.
if (uc_desc->bd[desc->currBd].BD_CTRL.DESC_EN)
continue; */
if (desc->msgSize)
{
// If we've been given the message size, we can process along the
// way.
// Enable the current buffer descriptor if it is full.
/* If we've been given the message size, we can process along the
way.
Enable the current buffer descriptor if it is full. */
if (desc->dbPtr >= PIC32_BLOCK_SIZE)
{
// Wrap up the buffer descriptor and enable it so the engine can process
/* Wrap up the buffer descriptor and enable it so the engine can process */
uc_desc->bd[desc->currBd].MSGLEN = desc->msgSize;
uc_desc->bd[desc->currBd].BD_CTRL.BUFLEN = desc->dbPtr;
uc_desc->bd[desc->currBd].BD_CTRL.LAST_BD = 0;
uc_desc->bd[desc->currBd].BD_CTRL.LIFM = 0;
//SYS_DEVCON_DataCacheClean((word32)desc, sizeof(pic32mz_desc));
/* SYS_DEVCON_DataCacheClean((word32)desc, sizeof(pic32mz_desc)); */
uc_desc->bd[desc->currBd].BD_CTRL.DESC_EN = 1;
// Move to the next buffer descriptor, or wrap around.
/* Move to the next buffer descriptor, or wrap around. */
desc->currBd++;
if (desc->currBd >= PIC32MZ_MAX_BD)
desc->currBd = 0;
// Wait until the engine has processed the new BD.
/* Wait until the engine has processed the new BD. */
while (uc_desc->bd[desc->currBd].BD_CTRL.DESC_EN);
uc_desc->bd[desc->currBd].UPDPTR = KVA_TO_PA(hash);
desc->dbPtr = 0;
}
if (!PIC32MZ_IF_RAM(input)) // If we're inputting from flash, let the BD have the address and max the buffer size
if (!PIC32MZ_IF_RAM(input)) /* If we're inputting from flash, let the BD have
the address and max the buffer size */
{
uc_desc->bd[desc->currBd].SRCADDR = KVA_TO_PA(input);
total = (len > PIC32MZ_MAX_BLOCK ? PIC32MZ_MAX_BLOCK : len);
@ -140,7 +136,7 @@ static void update_engine(pic32mz_desc *desc, const char *input, word32 len,
{
if (len > PIC32_BLOCK_SIZE - desc->dbPtr)
{
// We have more data than can be put in the buffer. Fill what we can.
/* We have more data than can be put in the buffer. Fill what we can.*/
total = PIC32_BLOCK_SIZE - desc->dbPtr;
XMEMCPY(&dataBuffer[desc->currBd][desc->dbPtr], input, total);
len -= total;
@ -149,7 +145,7 @@ static void update_engine(pic32mz_desc *desc, const char *input, word32 len,
}
else
{
// Fill up what we have, but don't turn on the engine.
/* Fill up what we have, but don't turn on the engine.*/
XMEMCPY(&dataBuffer[desc->currBd][desc->dbPtr], input, len);
desc->dbPtr += len;
len = 0;
@ -158,13 +154,13 @@ static void update_engine(pic32mz_desc *desc, const char *input, word32 len,
}
else
{
// We have to buffer everything and keep track of how much has been
// added in order to get a total size. If the buffer fills, we move
// to the next one. If we try to add more when the last buffer is
// full, we error out.
/* We have to buffer everything and keep track of how much has been
added in order to get a total size. If the buffer fills, we move
to the next one. If we try to add more when the last buffer is
full, we error out. */
if (desc->dbPtr == PIC32_BLOCK_SIZE)
{
// We filled the last BD buffer, so move on to the next one
/* We filled the last BD buffer, so move on to the next one */
uc_desc->bd[desc->currBd].BD_CTRL.LAST_BD = 0;
uc_desc->bd[desc->currBd].BD_CTRL.LIFM = 0;
uc_desc->bd[desc->currBd].BD_CTRL.BUFLEN = PIC32_BLOCK_SIZE;
@ -178,7 +174,7 @@ static void update_engine(pic32mz_desc *desc, const char *input, word32 len,
}
if (len > PIC32_BLOCK_SIZE - desc->dbPtr)
{
// We have more data than can be put in the buffer. Fill what we can.
/* We have more data than can be put in the buffer. Fill what we can. */
total = PIC32_BLOCK_SIZE - desc->dbPtr;
XMEMCPY(&dataBuffer[desc->currBd][desc->dbPtr], input, total);
len -= total;
@ -188,7 +184,7 @@ static void update_engine(pic32mz_desc *desc, const char *input, word32 len,
}
else
{
// Fill up what we have
/* Fill up what we have */
XMEMCPY(&dataBuffer[desc->currBd][desc->dbPtr], input, len);
desc->dbPtr += len;
desc->processed += len;
@ -199,7 +195,7 @@ static void update_engine(pic32mz_desc *desc, const char *input, word32 len,
}
static void start_engine(pic32mz_desc *desc) {
// Wrap up the last buffer descriptor and enable it
/* Wrap up the last buffer descriptor and enable it */
int i ;
int bufferLen ;
pic32mz_desc *uc_desc = KVA0_TO_KVA1(desc);
@ -212,8 +208,8 @@ static void start_engine(pic32mz_desc *desc) {
uc_desc->bd[desc->currBd].BD_CTRL.LIFM = 1;
if (desc->msgSize == 0)
{
// We were not given the size, so now we have to go through every BD
// and give it what will be processed, and enable them.
/* We were not given the size, so now we have to go through every BD
and give it what will be processed, and enable them. */
for (i = desc->currBd; i >= 0; i--)
{
uc_desc->bd[i].MSGLEN = desc->processed;
@ -251,17 +247,6 @@ void wait_engine(pic32mz_desc *desc, char *hash, int hash_sz) {
}
}
static int fillBuff(char *buff, int *bufflen, const char *data, int len, int blocksz)
{
int room, copysz ;
room = blocksz - *bufflen ;
copysz = (len <= room) ? len : room ;
XMEMCPY(buff, data, copysz) ;
*bufflen += copysz ;
return (*bufflen == blocksz) ? 1 : 0 ;
}
#endif
#ifndef NO_MD5