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nfc_target_send_bytes() function returns now sent bytes count on success and libnfc error code on failure.

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This commit is contained in:
Audrey Diacre 2011-12-22 15:59:08 +00:00
parent ac6f652368
commit 9c1371dcca
11 changed files with 51 additions and 50 deletions
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17
libnfc/chips/pn53x.c
View file

@ -1866,14 +1866,15 @@ pn53x_target_send_bits (struct nfc_device *pnd, const uint8_t *pbtTx, const size
return true;
}
bool
int
pn53x_target_send_bytes (struct nfc_device *pnd, const uint8_t *pbtTx, const size_t szTx, int timeout)
{
uint8_t abtCmd[PN53x_EXTENDED_FRAME__DATA_MAX_LEN];
int res = 0;
// We can not just send bytes without parity if while the PN53X expects we handled them
if (!pnd->bPar)
return false;
return NFC_ECHIP;
// XXX I think this is not a clean way to provide some kind of "EasyFraming"
// but at the moment I have no more better than this
@ -1892,7 +1893,7 @@ pn53x_target_send_bytes (struct nfc_device *pnd, const uint8_t *pbtTx, const siz
} else {
// TODO Support EasyFraming for other cases by software
pnd->last_error = NFC_ENOTIMPL;
return false;
return pnd->last_error;
}
}
default:
@ -1905,13 +1906,13 @@ pn53x_target_send_bytes (struct nfc_device *pnd, const uint8_t *pbtTx, const siz
// Copy the data into the command frame
memcpy (abtCmd + 1, pbtTx, szTx);
// Try to send the bits to the reader
if (pn53x_transceive (pnd, abtCmd, szTx + 1, NULL, NULL, timeout) < 0)
return false;
if ((res = pn53x_transceive (pnd, abtCmd, szTx + 1, NULL, NULL, timeout)) < 0)
return res;
// Everyting seems ok, return true
return true;
// Everyting seems ok, return sent byte count
return szTx;
}
static struct sErrorMessage {

2
libnfc/chips/pn53x.h
View file

@ -316,7 +316,7 @@ int pn53x_target_init (struct nfc_device *pnd, nfc_target *pnt, uint8_t *pbtR
bool pn53x_target_receive_bits (struct nfc_device *pnd, uint8_t *pbtRx, size_t *pszRxBits, uint8_t *pbtRxPar);
int pn53x_target_receive_bytes (struct nfc_device *pnd, uint8_t *pbtRx, size_t *pszRx, int timeout);
bool pn53x_target_send_bits (struct nfc_device *pnd, const uint8_t *pbtTx, const size_t szTxBits, const uint8_t *pbtTxPar);
bool pn53x_target_send_bytes (struct nfc_device *pnd, const uint8_t *pbtTx, const size_t szTx, int timeout);
int pn53x_target_send_bytes (struct nfc_device *pnd, const uint8_t *pbtTx, const size_t szTx, int timeout);
// Error handling functions
const char *pn53x_strerror (const struct nfc_device *pnd);

2
libnfc/nfc-emulation.c
View file

@ -42,7 +42,7 @@ nfc_emulate_target (nfc_device *pnd, struct nfc_emulator *emulator)
while (res >= 0) {
res = emulator->state_machine->io (emulator, abtRx, szRx, abtTx, sizeof (abtTx));
if (res > 0) {
if (!nfc_target_send_bytes(pnd, abtTx, res, 0)) {
if (nfc_target_send_bytes(pnd, abtTx, res, 0) < 0) {
return -1;
}
}

2
libnfc/nfc-internal.h
View file

@ -143,7 +143,7 @@ struct nfc_driver_t {
bool (*initiator_transceive_bits_timed) (struct nfc_device *pnd, const uint8_t * pbtTx, const size_t szTxBits, const uint8_t * pbtTxPar, uint8_t * pbtRx, size_t * pszRxBits, uint8_t * pbtRxPar, uint32_t * cycles);
int (*target_init) (struct nfc_device *pnd, nfc_target * pnt, uint8_t * pbtRx, size_t * pszRx);
bool (*target_send_bytes) (struct nfc_device *pnd, const uint8_t * pbtTx, const size_t szTx, int timeout);
int (*target_send_bytes) (struct nfc_device *pnd, const uint8_t * pbtTx, const size_t szTx, int timeout);
int (*target_receive_bytes) (struct nfc_device *pnd, uint8_t * pbtRx, size_t * pszRx, int timeout);
bool (*target_send_bits) (struct nfc_device *pnd, const uint8_t * pbtTx, const size_t szTxBits, const uint8_t * pbtTxPar);
bool (*target_receive_bits) (struct nfc_device *pnd, uint8_t * pbtRx, size_t * pszRxBits, uint8_t * pbtRxPar);

4
libnfc/nfc.c
View file

@ -695,7 +695,7 @@ nfc_abort_command (nfc_device *pnd)
/**
* @brief Send bytes and APDU frames
* @return Returns \c true if action was successfully performed; otherwise returns \c false.
* @return Returns sent bytes count on success, otherwise returns libnfc's error code
*
* @param pnd \a nfc_device struct pointer that represent currently used device
* @param pbtTx pointer to Tx buffer
@ -708,7 +708,7 @@ nfc_abort_command (nfc_device *pnd)
* If timeout is not a null pointer, it specifies the maximum interval to wait for the function to be executed.
* If timeout is a null pointer, the function blocks indefinitely (until an error is raised or function is completed).
*/
bool
int
nfc_target_send_bytes (nfc_device *pnd, const uint8_t *pbtTx, const size_t szTx, int timeout)
{
HAL (target_send_bytes, pnd, pbtTx, szTx, timeout);