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chips/pn53x: fix memset size on writeback cache, typo and fix a mask problem on data store

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This commit is contained in:
Romuald Conty 2011-05-09 20:42:11 +00:00
parent b3cade2db2
commit ef3303839a
1 changed files with 4 additions and 4 deletions
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8
libnfc/chips/pn53x.c
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@ -497,7 +497,7 @@ pn53x_write_register (nfc_device_t * pnd, const uint16_t ui16RegisterAddress, co
} else {
// Write-back cache area
const int internal_address = ui16RegisterAddress - PN53X_CACHE_REGISTER_MIN_ADDRESS;
CHIP_DATA (pnd)->wb_data[internal_address] = (CHIP_DATA (pnd)->wb_data[internal_address] & CHIP_DATA (pnd)->wb_mask[internal_address]) | (ui8Value & ui8SymbolMask);
CHIP_DATA (pnd)->wb_data[internal_address] = (CHIP_DATA (pnd)->wb_data[internal_address] & CHIP_DATA (pnd)->wb_mask[internal_address] & (~ui8SymbolMask)) | (ui8Value & ui8SymbolMask);
CHIP_DATA (pnd)->wb_mask[internal_address] = CHIP_DATA (pnd)->wb_mask[internal_address] | ui8SymbolMask;
CHIP_DATA (pnd)->wb_trigged = true;
DBG ("WriteBackRegister (%04x, %02x, %02x)", ui16RegisterAddress, CHIP_DATA (pnd)->wb_data[internal_address], CHIP_DATA (pnd)->wb_mask[internal_address]);
@ -540,7 +540,7 @@ pn53x_writeback_register (nfc_device_t * pnd)
if ((CHIP_DATA (pnd)->wb_mask[n]) && (CHIP_DATA (pnd)->wb_mask[n] != 0xff)) {
CHIP_DATA (pnd)->wb_data[n] = ((CHIP_DATA (pnd)->wb_data[n] & CHIP_DATA (pnd)->wb_mask[n]) | (abtRes[i] & (~CHIP_DATA (pnd)->wb_mask[n])));
if (CHIP_DATA (pnd)->wb_data[n] != abtRes[i]) {
// Requested value is different from readed one
// Requested value is different from read one
CHIP_DATA (pnd)->wb_mask[n] = 0xff; // We can now apply whole data bits
} else {
CHIP_DATA (pnd)->wb_mask[n] = 0x00; // We already have the right value
@ -549,7 +549,7 @@ pn53x_writeback_register (nfc_device_t * pnd)
}
}
}
// Now, the writeback-cache only have masks with 0xff, we can start to WriteRegister
// Now, the writeback-cache only has masks with 0xff, we can start to WriteRegister
szCmd = 1;
abtCmd[0] = WriteRegister;
for (size_t n = 0; n < PN53X_CACHE_REGISTER_SIZE; n++) {
@ -2336,5 +2336,5 @@ pn53x_data_new (nfc_device_t * pnd, const struct pn53x_io* io)
// WriteBack cache is clean
CHIP_DATA (pnd)->wb_trigged = false;
memset (CHIP_DATA (pnd)->wb_mask, 0x00, PN53X_CACHE_REGISTER_MAX_ADDRESS-PN53X_CACHE_REGISTER_MIN_ADDRESS);
memset (CHIP_DATA (pnd)->wb_mask, 0x00, PN53X_CACHE_REGISTER_SIZE);
}