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FIX: Better udp_csr handeling. Usb messages gets to the device better, which makes "lf awid bruteforce" work :)

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This commit is contained in:
iceman1001 2016-08-26 16:22:56 +02:00
parent ed8c2aeb63
commit a2101157f7
1 changed files with 81 additions and 31 deletions
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92
common/usb_cdc.c
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@ -169,6 +169,31 @@ const char strDescriptor[] = {
'g', 0x00,
};
// Bitmap for all status bits in CSR.
#define REG_NO_EFFECT_1_ALL AT91C_UDP_RX_DATA_BK0 | AT91C_UDP_RX_DATA_BK1 \
|AT91C_UDP_STALLSENT | AT91C_UDP_RXSETUP \
|AT91C_UDP_TXCOMP
// Clear flags in the UDP_CSR register and waits for synchronization
#define UDP_CLEAR_EP_FLAGS(endpoint, flags) { \
volatile unsigned int reg; \
reg = pUdp->UDP_CSR[endpoint]; \
reg |= REG_NO_EFFECT_1_ALL; \
reg &= ~(flags); \
pUdp->UDP_CSR[endpoint] = reg; \
while ( (pUdp->UDP_CSR[endpoint] & (flags)) == (flags)); \
}
// reset flags in the UDP_CSR register and waits for synchronization
#define UDP_SET_EP_FLAGS(endpoint, flags) { \
volatile unsigned int reg; \
reg = pUdp->UDP_CSR[endpoint]; \
reg |= REG_NO_EFFECT_1_ALL; \
reg |= (flags); \
pUdp->UDP_CSR[endpoint] = reg; \
while ( ( pUdp->UDP_CSR[endpoint] & (flags)) != (flags)); \
}
/* USB standard request code */
#define STD_GET_STATUS_ZERO 0x0080
@ -328,7 +353,9 @@ uint32_t usb_read(byte_t* data, size_t len) {
while(packetSize--)
data[nbBytesRcv++] = pUdp->UDP_FDR[AT91C_EP_OUT];
pUdp->UDP_CSR[AT91C_EP_OUT] &= ~(bank);
UDP_CLEAR_EP_FLAGS(AT91C_EP_OUT, bank)
//pUdp->UDP_CSR[AT91C_EP_OUT] &= ~(bank);
if (bank == AT91C_UDP_RX_DATA_BK0)
bank = AT91C_UDP_RX_DATA_BK1;
@ -357,7 +384,9 @@ uint32_t usb_write(const byte_t* data, const size_t len) {
cpt = MIN(length, AT91C_EP_IN_SIZE-1);
length -= cpt;
while (cpt--) pUdp->UDP_FDR[AT91C_EP_IN] = *data++;
pUdp->UDP_CSR[AT91C_EP_IN] |= AT91C_UDP_TXPKTRDY;
UDP_SET_EP_FLAGS(AT91C_EP_IN, AT91C_UDP_TXPKTRDY)
//pUdp->UDP_CSR[AT91C_EP_IN] |= AT91C_UDP_TXPKTRDY;
while (length) {
// Fill the second bank
@ -368,11 +397,13 @@ uint32_t usb_write(const byte_t* data, const size_t len) {
while (!(pUdp->UDP_CSR[AT91C_EP_IN] & AT91C_UDP_TXCOMP)) {
if (!usb_check()) return length;
}
pUdp->UDP_CSR[AT91C_EP_IN] &= ~(AT91C_UDP_TXCOMP);
while (pUdp->UDP_CSR[AT91C_EP_IN] & AT91C_UDP_TXCOMP);
UDP_CLEAR_EP_FLAGS(AT91C_EP_IN, AT91C_UDP_TXCOMP)
//pUdp->UDP_CSR[AT91C_EP_IN] &= ~(AT91C_UDP_TXCOMP);
//while (pUdp->UDP_CSR[AT91C_EP_IN] & AT91C_UDP_TXCOMP);
pUdp->UDP_CSR[AT91C_EP_IN] |= AT91C_UDP_TXPKTRDY;
UDP_SET_EP_FLAGS(AT91C_EP_IN, AT91C_UDP_TXPKTRDY)
//pUdp->UDP_CSR[AT91C_EP_IN] |= AT91C_UDP_TXPKTRDY;
}
// Wait for the end of transfer
@ -380,8 +411,9 @@ uint32_t usb_write(const byte_t* data, const size_t len) {
if (!usb_check()) return length;
}
pUdp->UDP_CSR[AT91C_EP_IN] &= ~(AT91C_UDP_TXCOMP);
while (pUdp->UDP_CSR[AT91C_EP_IN] & AT91C_UDP_TXCOMP);
UDP_CLEAR_EP_FLAGS(AT91C_EP_IN, AT91C_UDP_TXCOMP)
//pUdp->UDP_CSR[AT91C_EP_IN] &= ~(AT91C_UDP_TXCOMP);
//while (pUdp->UDP_CSR[AT91C_EP_IN] & AT91C_UDP_TXCOMP);
return length;
}
@ -405,17 +437,22 @@ static void AT91F_USB_SendData(AT91PS_UDP pUdp, const char *pData, uint32_t leng
pUdp->UDP_FDR[0] = *pData++;
if (pUdp->UDP_CSR[0] & AT91C_UDP_TXCOMP) {
pUdp->UDP_CSR[0] &= ~(AT91C_UDP_TXCOMP);
while (pUdp->UDP_CSR[0] & AT91C_UDP_TXCOMP);
UDP_CLEAR_EP_FLAGS(0, AT91C_UDP_TXCOMP)
//pUdp->UDP_CSR[0] &= ~(AT91C_UDP_TXCOMP);
//while (pUdp->UDP_CSR[0] & AT91C_UDP_TXCOMP);
}
pUdp->UDP_CSR[0] |= AT91C_UDP_TXPKTRDY;
UDP_SET_EP_FLAGS(0, AT91C_UDP_TXPKTRDY)
// pUdp->UDP_CSR[0] |= AT91C_UDP_TXPKTRDY;
do {
csr = pUdp->UDP_CSR[0];
// Data IN stage has been stopped by a status OUT
if (csr & AT91C_UDP_RX_DATA_BK0) {
pUdp->UDP_CSR[0] &= ~(AT91C_UDP_RX_DATA_BK0);
UDP_CLEAR_EP_FLAGS(0, AT91C_UDP_RX_DATA_BK0)
//pUdp->UDP_CSR[0] &= ~(AT91C_UDP_RX_DATA_BK0);
return;
}
} while ( !(csr & AT91C_UDP_TXCOMP) );
@ -423,8 +460,10 @@ static void AT91F_USB_SendData(AT91PS_UDP pUdp, const char *pData, uint32_t leng
} while (length);
if (pUdp->UDP_CSR[0] & AT91C_UDP_TXCOMP) {
pUdp->UDP_CSR[0] &= ~(AT91C_UDP_TXCOMP);
while (pUdp->UDP_CSR[0] & AT91C_UDP_TXCOMP);
UDP_CLEAR_EP_FLAGS(0, AT91C_UDP_TXCOMP)
//pUdp->UDP_CSR[0] &= ~(AT91C_UDP_TXCOMP);
//while (pUdp->UDP_CSR[0] & AT91C_UDP_TXCOMP);
}
}
@ -433,10 +472,15 @@ static void AT91F_USB_SendData(AT91PS_UDP pUdp, const char *pData, uint32_t leng
//* \brief Send zero length packet through the control endpoint
//*----------------------------------------------------------------------------
void AT91F_USB_SendZlp(AT91PS_UDP pUdp) {
pUdp->UDP_CSR[0] |= AT91C_UDP_TXPKTRDY;
UDP_SET_EP_FLAGS(0, AT91C_UDP_TXPKTRDY)
//pUdp->UDP_CSR[0] |= AT91C_UDP_TXPKTRDY;
while ( !(pUdp->UDP_CSR[0] & AT91C_UDP_TXCOMP) );
pUdp->UDP_CSR[0] &= ~(AT91C_UDP_TXCOMP);
while (pUdp->UDP_CSR[0] & AT91C_UDP_TXCOMP);
UDP_CLEAR_EP_FLAGS(0, AT91C_UDP_TXCOMP)
//pUdp->UDP_CSR[0] &= ~(AT91C_UDP_TXCOMP);
//while (pUdp->UDP_CSR[0] & AT91C_UDP_TXCOMP);
}
//*----------------------------------------------------------------------------
@ -446,6 +490,7 @@ void AT91F_USB_SendZlp(AT91PS_UDP pUdp) {
void AT91F_USB_SendStall(AT91PS_UDP pUdp) {
pUdp->UDP_CSR[0] |= AT91C_UDP_FORCESTALL;
while ( !(pUdp->UDP_CSR[0] & AT91C_UDP_ISOERROR) );
pUdp->UDP_CSR[0] &= ~(AT91C_UDP_FORCESTALL | AT91C_UDP_ISOERROR);
while (pUdp->UDP_CSR[0] & (AT91C_UDP_FORCESTALL | AT91C_UDP_ISOERROR));
}
@ -471,11 +516,15 @@ void AT91F_CDC_Enumerate() {
wLength |= (pUdp->UDP_FDR[0] << 8);
if (bmRequestType & 0x80) {
pUdp->UDP_CSR[0] |= AT91C_UDP_DIR;
while ( !(pUdp->UDP_CSR[0] & AT91C_UDP_DIR) );
UDP_SET_EP_FLAGS(0, AT91C_UDP_DIR)
//pUdp->UDP_CSR[0] |= AT91C_UDP_DIR;
//while ( !(pUdp->UDP_CSR[0] & AT91C_UDP_DIR) );
}
pUdp->UDP_CSR[0] &= ~AT91C_UDP_RXSETUP;
while ( (pUdp->UDP_CSR[0] & AT91C_UDP_RXSETUP) );
UDP_CLEAR_EP_FLAGS(0, AT91C_UDP_RXSETUP)
//pUdp->UDP_CSR[0] &= ~AT91C_UDP_RXSETUP;
//while ( (pUdp->UDP_CSR[0] & AT91C_UDP_RXSETUP) );
// Handle supported standard device request Cf Table 9-3 in USB specification Rev 1.1
switch ((bRequest << 8) | bmRequestType) {
@ -566,7 +615,8 @@ void AT91F_CDC_Enumerate() {
// handle CDC class requests
case SET_LINE_CODING:
while ( !(pUdp->UDP_CSR[0] & AT91C_UDP_RX_DATA_BK0) );
pUdp->UDP_CSR[0] &= ~(AT91C_UDP_RX_DATA_BK0);
UDP_CLEAR_EP_FLAGS(0, AT91C_UDP_RX_DATA_BK0)
//pUdp->UDP_CSR[0] &= ~(AT91C_UDP_RX_DATA_BK0);
AT91F_USB_SendZlp(pUdp);
break;
case GET_LINE_CODING: