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acr122_usb: remove ACR122<>TOUCHATAG model distinction

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This commit is contained in:
Philippe Teuwen 2013-06-14 23:58:55 +02:00
parent c6bda74f44
commit 6038aca7d1
1 changed files with 48 additions and 91 deletions
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139
libnfc/drivers/acr122_usb.c
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@ -77,12 +77,6 @@ Thanks to d18c7db and Okko for example code
#define DRIVER_DATA(pnd) ((struct acr122_usb_data*)(pnd->driver_data))
typedef enum {
UNKNOWN,
ACR122,
TOUCHATAG,
} acr122_usb_model;
/*
USB activity trace for PN533, ACR122 and Touchatag
@ -178,7 +172,6 @@ struct acr122_usb_apdu_frame {
// Internal data struct
struct acr122_usb_data {
usb_dev_handle *pudh;
acr122_usb_model model;
uint32_t uiEndPointIn;
uint32_t uiEndPointOut;
uint32_t uiMaxPacketSize;
@ -191,10 +184,8 @@ struct acr122_usb_data {
// CCID Bulk-Out messages type
#define PC_to_RDR_IccPowerOn 0x62
#define PC_to_RDR_XfrBlock 0x6f
#define PC_to_RDR_Escape 0x6b
#define RDR_to_PC_DataBlock 0x80
#define RDR_to_PC_Escape 0x83
// ISO 7816-4
#define SW1_More_Data_Available 0x61
@ -205,7 +196,7 @@ struct acr122_usb_data {
// This frame template is copied at init time
// Its designed for TAMA sending but is also used for simple ADPU frame: acr122_build_frame_from_apdu() will overwrite needed bytes
const uint8_t acr122_usb_frame_template[] = {
PC_to_RDR_Escape, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // CCID header (first byte will be filled by acr122_init() depending on model)
PC_to_RDR_XfrBlock, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // CCID header
0xff, 0x00, 0x00, 0x00, 0x00, // ADPU header
0xd4, // PN532 direction
};
@ -264,27 +255,14 @@ acr122_usb_bulk_write(struct acr122_usb_data *data, uint8_t abtTx[], const size_
struct acr122_usb_supported_device {
uint16_t vendor_id;
uint16_t product_id;
acr122_usb_model model;
const char *name;
};
const struct acr122_usb_supported_device acr122_usb_supported_devices[] = {
{ 0x072F, 0x2200, TOUCHATAG, "ACS ACR122" },
{ 0x072F, 0x90CC, TOUCHATAG, "Touchatag" },
{ 0x072F, 0x2200, "ACS ACR122" },
{ 0x072F, 0x90CC, "Touchatag" },
};
static acr122_usb_model
acr122_usb_get_device_model(uint16_t vendor_id, uint16_t product_id)
{
for (size_t n = 0; n < sizeof(acr122_usb_supported_devices) / sizeof(struct acr122_usb_supported_device); n++) {
if ((vendor_id == acr122_usb_supported_devices[n].vendor_id) &&
(product_id == acr122_usb_supported_devices[n].product_id))
return acr122_usb_supported_devices[n].model;
}
return UNKNOWN;
}
// Find transfer endpoints for bulk transfers
static void
acr122_usb_get_end_points(struct usb_device *dev, struct acr122_usb_data *data)
@ -455,7 +433,6 @@ acr122_usb_open(const nfc_context *context, const nfc_connstring connstring)
goto free_mem;
}
data.model = acr122_usb_get_device_model(dev->descriptor.idVendor, dev->descriptor.idProduct);
// Allocate memory for the device info and specification, fill it and return the info
pnd = nfc_device_new(context, connstring);
if (!pnd) {
@ -479,18 +456,7 @@ acr122_usb_open(const nfc_context *context, const nfc_connstring connstring)
memcpy(&(DRIVER_DATA(pnd)->tama_frame), acr122_usb_frame_template, sizeof(acr122_usb_frame_template));
memcpy(&(DRIVER_DATA(pnd)->apdu_frame), acr122_usb_frame_template, sizeof(acr122_usb_frame_template));
switch (DRIVER_DATA(pnd)->model) {
case ACR122:
CHIP_DATA(pnd)->timer_correction = 46; // empirical tuning
break;
case TOUCHATAG:
CHIP_DATA(pnd)->timer_correction = 50; // empirical tuning
DRIVER_DATA(pnd)->tama_frame.ccid_header.bMessageType = PC_to_RDR_XfrBlock;
DRIVER_DATA(pnd)->apdu_frame.ccid_header.bMessageType = PC_to_RDR_XfrBlock;
break;
case UNKNOWN:
break;
}
CHIP_DATA(pnd)->timer_correction = 46; // empirical tuning
pnd->driver = &acr122_usb_driver;
if (acr122_usb_init(pnd) < 0) {
@ -632,61 +598,52 @@ read:
res = acr122_usb_bulk_read(DRIVER_DATA(pnd), abtRxBuf, sizeof(abtRxBuf), usb_timeout);
uint8_t attempted_response = RDR_to_PC_Escape; // ACR122U attempted response
uint8_t attempted_response = RDR_to_PC_DataBlock;
size_t len;
switch (DRIVER_DATA(pnd)->model) {
case TOUCHATAG:
attempted_response = RDR_to_PC_DataBlock;
if (res == NFC_ETIMEOUT) {
if (DRIVER_DATA(pnd)->abort_flag) {
DRIVER_DATA(pnd)->abort_flag = false;
acr122_usb_ack(pnd);
pnd->last_error = NFC_EOPABORTED;
return pnd->last_error;
} else {
goto read;
}
}
if (res < 12) {
log_put(LOG_GROUP, LOG_CATEGORY, NFC_LOG_PRIORITY_ERROR, "%s", "Invalid RDR_to_PC_DataBlock frame");
pnd->last_error = NFC_EIO;
return pnd->last_error;
}
if (abtRxBuf[offset] != attempted_response) {
log_put(LOG_GROUP, LOG_CATEGORY, NFC_LOG_PRIORITY_ERROR, "%s", "Frame header mismatch");
pnd->last_error = NFC_EIO;
return pnd->last_error;
}
offset++;
len = abtRxBuf[offset++];
if (!((len > 1) && (abtRxBuf[10] == 0xd5))) { // In case we didn't get an immediate answer:
if (len != 2) {
log_put(LOG_GROUP, LOG_CATEGORY, NFC_LOG_PRIORITY_ERROR, "%s", "Wrong reply");
pnd->last_error = NFC_EIO;
return pnd->last_error;
}
if (abtRxBuf[10] != SW1_More_Data_Available) {
if ((abtRxBuf[10] == SW1_Warning_with_NV_changed) && (abtRxBuf[11] == PN53x_Specific_Application_Level_Error_Code)) {
log_put(LOG_GROUP, LOG_CATEGORY, NFC_LOG_PRIORITY_ERROR, "%s", "PN532 has detected an error at the application level");
} else if ((abtRxBuf[10] == SW1_Warning_with_NV_changed) && (abtRxBuf[11] == 0x00)) {
log_put(LOG_GROUP, LOG_CATEGORY, NFC_LOG_PRIORITY_ERROR, "%s", "PN532 didn't reply");
} else {
log_put(LOG_GROUP, LOG_CATEGORY, NFC_LOG_PRIORITY_ERROR, "Unexpected Status Word (SW1: %02x SW2: %02x)", abtRxBuf[10], abtRxBuf[11]);
}
pnd->last_error = NFC_EIO;
return pnd->last_error;
}
acr122_usb_send_apdu(pnd, APDU_GetAdditionnalData, 0x00, 0x00, NULL, 0, abtRxBuf[11], abtRxBuf, sizeof(abtRxBuf));
}
offset = 0;
break;
case ACR122:
break;
case UNKNOWN:
break;
if (res == NFC_ETIMEOUT) {
if (DRIVER_DATA(pnd)->abort_flag) {
DRIVER_DATA(pnd)->abort_flag = false;
acr122_usb_ack(pnd);
pnd->last_error = NFC_EOPABORTED;
return pnd->last_error;
} else {
goto read;
}
}
if (res < 12) {
log_put(LOG_GROUP, LOG_CATEGORY, NFC_LOG_PRIORITY_ERROR, "%s", "Invalid RDR_to_PC_DataBlock frame");
pnd->last_error = NFC_EIO;
return pnd->last_error;
}
if (abtRxBuf[offset] != attempted_response) {
log_put(LOG_GROUP, LOG_CATEGORY, NFC_LOG_PRIORITY_ERROR, "%s", "Frame header mismatch");
pnd->last_error = NFC_EIO;
return pnd->last_error;
}
offset++;
len = abtRxBuf[offset++];
if (!((len > 1) && (abtRxBuf[10] == 0xd5))) { // In case we didn't get an immediate answer:
if (len != 2) {
log_put(LOG_GROUP, LOG_CATEGORY, NFC_LOG_PRIORITY_ERROR, "%s", "Wrong reply");
pnd->last_error = NFC_EIO;
return pnd->last_error;
}
if (abtRxBuf[10] != SW1_More_Data_Available) {
if ((abtRxBuf[10] == SW1_Warning_with_NV_changed) && (abtRxBuf[11] == PN53x_Specific_Application_Level_Error_Code)) {
log_put(LOG_GROUP, LOG_CATEGORY, NFC_LOG_PRIORITY_ERROR, "%s", "PN532 has detected an error at the application level");
} else if ((abtRxBuf[10] == SW1_Warning_with_NV_changed) && (abtRxBuf[11] == 0x00)) {
log_put(LOG_GROUP, LOG_CATEGORY, NFC_LOG_PRIORITY_ERROR, "%s", "PN532 didn't reply");
} else {
log_put(LOG_GROUP, LOG_CATEGORY, NFC_LOG_PRIORITY_ERROR, "Unexpected Status Word (SW1: %02x SW2: %02x)", abtRxBuf[10], abtRxBuf[11]);
}
pnd->last_error = NFC_EIO;
return pnd->last_error;
}
acr122_usb_send_apdu(pnd, APDU_GetAdditionnalData, 0x00, 0x00, NULL, 0, abtRxBuf[11], abtRxBuf, sizeof(abtRxBuf));
}
offset = 0;
if (res == NFC_ETIMEOUT) {
if (DRIVER_DATA(pnd)->abort_flag) {
DRIVER_DATA(pnd)->abort_flag = false;
@ -841,7 +798,7 @@ acr122_usb_init(nfc_device *pnd)
return res;
res = 0;
for (i=0; i<3; i++) {
for (i = 0; i < 3; i++) {
if (res < 0)
log_put(LOG_GROUP, LOG_CATEGORY, NFC_LOG_PRIORITY_ERROR, "%s", "PN532 init failed, trying again...");
if ((res = pn53x_init(pnd)) >= 0)