mirror of
https://github.com/Proxmark/proxmark3.git
synced 2025-08-20 13:23:25 -07:00
Iceman
GitHub
commit
a8bd358225
1 changed files with 108 additions and 49 deletions
157
common/usb_cdc.c
157
common/usb_cdc.c
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@ -33,34 +33,35 @@
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*/
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#include "usb_cdc.h"
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#include "at91sam7s512.h"
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#include "config_gpio.h"
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#define MIN(a, b) (((a) < (b)) ? (a) : (b))
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#define MAX(a, b) (((a) > (b)) ? (a) : (b))
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#define AT91C_EP_CONTROL 0
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#define AT91C_EP_IN_SIZE 0x40
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#define AT91C_EP_OUT 1
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#define AT91C_EP_OUT_SIZE 0x40
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#define AT91C_EP_IN 2
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const char devDescriptor[] = {
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static const char devDescriptor[] = {
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/* Device descriptor */
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0x12, // bLength
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0x01, // bDescriptorType
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0x10,0x01, // Complies with USB Spec. Release (0110h = release 1.10)
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0x00,0x02, // Complies with USB Spec. Release (0200h = release 2.0)
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0x02, // bDeviceClass: CDC class code
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0x00, // bDeviceSubclass: CDC class sub code
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0x00, // bDeviceProtocol: CDC Device protocol
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0x08, // bMaxPacketSize0
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0x2d,0x2d, // Vendor ID (--)
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0x4d,0x50, // Product ID (PM), transmitted in reverse
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0xc4,0x9a, // Vendor ID (0x9ac4 = J. Westhues)
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0x8f,0x4b, // Product ID (0x4b8f = Proxmark-3 RFID Instrument)
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0x01,0x00, // Device release number (0001)
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0x01, // iManufacturer // 0x01
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0x00, // iProduct
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0x00, // SerialNumber
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0x01, // iManufacturer
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0x02, // iProduct
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0x00, // iSerialNumber
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0x01 // bNumConfigs
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};
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const char cfgDescriptor[] = {
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static const char cfgDescriptor[] = {
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/* ============== CONFIGURATION 1 =========== */
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/* Configuration 1 descriptor */
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0x09, // CbLength
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@ -71,7 +72,7 @@ const char cfgDescriptor[] = {
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0x01, // CbConfigurationValue
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0x00, // CiConfiguration
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0xC0, // CbmAttributes 0xA0
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0x00, // CMaxPower
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0xFA, // CMaxPower
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/* Communication Class Interface Descriptor Requirement */
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0x09, // bLength
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@ -81,7 +82,7 @@ const char cfgDescriptor[] = {
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0x01, // bNumEndpoints
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0x02, // bInterfaceClass
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0x02, // bInterfaceSubclass
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0x00, // bInterfaceProtocol
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0x01, // bInterfaceProtocol
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0x00, // iInterface
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/* Header Functional Descriptor */
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@ -95,7 +96,7 @@ const char cfgDescriptor[] = {
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0x04, // bFunctionLength
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0x24, // bDescriptor Type: CS_INTERFACE
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0x02, // bDescriptor Subtype: ACM Func Desc
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0x00, // bmCapabilities
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0x02, // bmCapabilities
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/* Union Functional Descriptor */
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0x05, // bFunctionLength
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@ -151,8 +152,14 @@ const char cfgDescriptor[] = {
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0x00 // bInterval
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};
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const char strDescriptor[] = {
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26, // Length
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static const char StrDescLanguageCodes[] = {
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4, // Length
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0x03, // Type is string
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0x09, 0x04 // supported language Code 0 = 0x0409 (English)
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};
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static const char StrDescManufacturer[] = {
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26, // Length
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0x03, // Type is string
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'p', 0x00,
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'r', 0x00,
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@ -165,11 +172,57 @@ const char strDescriptor[] = {
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'.', 0x00,
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'o', 0x00,
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'r', 0x00,
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'g', 0x00,
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'g', 0x00
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};
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static const char StrDescProduct[] = {
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8, // Length
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0x03, // Type is string
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'P', 0x00,
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'M', 0x00,
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'3', 0x00
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};
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static const char* const pStrings[] =
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{
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StrDescLanguageCodes,
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StrDescManufacturer,
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StrDescProduct
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};
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/* USB standard request code */
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const char* getStringDescriptor(uint8_t idx)
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{
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if(idx >= (sizeof(pStrings) / sizeof(pStrings[0]))) {
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return(NULL);
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} else {
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return(pStrings[idx]);
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}
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}
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// Bitmap for all status bits in CSR which must be written as 1 to cause no effect
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#define REG_NO_EFFECT_1_ALL AT91C_UDP_RX_DATA_BK0 | AT91C_UDP_RX_DATA_BK1 \
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|AT91C_UDP_STALLSENT | AT91C_UDP_RXSETUP \
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|AT91C_UDP_TXCOMP
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// Clear flags in the UDP_CSR register
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#define UDP_CLEAR_EP_FLAGS(endpoint, flags) { \
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volatile unsigned int reg; \
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reg = pUdp->UDP_CSR[(endpoint)]; \
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reg |= REG_NO_EFFECT_1_ALL; \
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reg &= ~(flags); \
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pUdp->UDP_CSR[(endpoint)] = reg; \
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}
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// Set flags in the UDP_CSR register
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#define UDP_SET_EP_FLAGS(endpoint, flags) { \
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volatile unsigned int reg; \
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reg = pUdp->UDP_CSR[(endpoint)]; \
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reg |= REG_NO_EFFECT_1_ALL; \
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reg |= (flags); \
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pUdp->UDP_CSR[(endpoint)] = reg; \
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}
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/* USB standard request codes */
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#define STD_GET_STATUS_ZERO 0x0080
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#define STD_GET_STATUS_INTERFACE 0x0081
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#define STD_GET_STATUS_ENDPOINT 0x0082
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@ -277,7 +330,7 @@ bool usb_check() {
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// Enable the function
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pUdp->UDP_FADDR = AT91C_UDP_FEN;
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// Configure endpoint 0
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pUdp->UDP_CSR[0] = (AT91C_UDP_EPEDS | AT91C_UDP_EPTYPE_CTRL);
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pUdp->UDP_CSR[AT91C_EP_CONTROL] = (AT91C_UDP_EPEDS | AT91C_UDP_EPTYPE_CTRL);
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}
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else if (isr & AT91C_UDP_EPINT0) {
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pUdp->UDP_ICR = AT91C_UDP_EPINT0;
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@ -326,7 +379,7 @@ uint32_t usb_read(byte_t* data, size_t len) {
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len -= packetSize;
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while(packetSize--)
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data[nbBytesRcv++] = pUdp->UDP_FDR[AT91C_EP_OUT];
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pUdp->UDP_CSR[AT91C_EP_OUT] &= ~(bank);
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UDP_CLEAR_EP_FLAGS(AT91C_EP_OUT, bank);
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if (bank == AT91C_UDP_RX_DATA_BK0) {
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bank = AT91C_UDP_RX_DATA_BK1;
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} else {
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@ -355,7 +408,7 @@ uint32_t usb_write(const byte_t* data, const size_t len) {
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cpt = MIN(length, AT91C_EP_IN_SIZE-1);
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length -= cpt;
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while (cpt--) pUdp->UDP_FDR[AT91C_EP_IN] = *data++;
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pUdp->UDP_CSR[AT91C_EP_IN] |= AT91C_UDP_TXPKTRDY;
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UDP_SET_EP_FLAGS(AT91C_EP_IN, AT91C_UDP_TXPKTRDY);
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while (length) {
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// Fill the second bank
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@ -366,9 +419,9 @@ uint32_t usb_write(const byte_t* data, const size_t len) {
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while (!(pUdp->UDP_CSR[AT91C_EP_IN] & AT91C_UDP_TXCOMP)) {
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if (!usb_check()) return length;
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}
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pUdp->UDP_CSR[AT91C_EP_IN] &= ~(AT91C_UDP_TXCOMP);
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UDP_CLEAR_EP_FLAGS(AT91C_EP_IN, AT91C_UDP_TXCOMP);
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while (pUdp->UDP_CSR[AT91C_EP_IN] & AT91C_UDP_TXCOMP);
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pUdp->UDP_CSR[AT91C_EP_IN] |= AT91C_UDP_TXPKTRDY;
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UDP_SET_EP_FLAGS(AT91C_EP_IN, AT91C_UDP_TXPKTRDY);
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}
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// Wait for the end of transfer
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@ -376,7 +429,7 @@ uint32_t usb_write(const byte_t* data, const size_t len) {
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if (!usb_check()) return length;
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}
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pUdp->UDP_CSR[AT91C_EP_IN] &= ~(AT91C_UDP_TXCOMP);
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UDP_CLEAR_EP_FLAGS(AT91C_EP_IN, AT91C_UDP_TXCOMP);
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while (pUdp->UDP_CSR[AT91C_EP_IN] & AT91C_UDP_TXCOMP);
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return length;
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@ -400,27 +453,27 @@ static void AT91F_USB_SendData(AT91PS_UDP pUdp, const char *pData, uint32_t leng
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while (cpt--)
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pUdp->UDP_FDR[0] = *pData++;
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if (pUdp->UDP_CSR[0] & AT91C_UDP_TXCOMP) {
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pUdp->UDP_CSR[0] &= ~(AT91C_UDP_TXCOMP);
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while (pUdp->UDP_CSR[0] & AT91C_UDP_TXCOMP);
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if (pUdp->UDP_CSR[AT91C_EP_CONTROL] & AT91C_UDP_TXCOMP) {
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UDP_CLEAR_EP_FLAGS(AT91C_EP_CONTROL, AT91C_UDP_TXCOMP);
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while (pUdp->UDP_CSR[AT91C_EP_CONTROL] & AT91C_UDP_TXCOMP);
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}
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pUdp->UDP_CSR[0] |= AT91C_UDP_TXPKTRDY;
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UDP_SET_EP_FLAGS(AT91C_EP_CONTROL, AT91C_UDP_TXPKTRDY);
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do {
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csr = pUdp->UDP_CSR[0];
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csr = pUdp->UDP_CSR[AT91C_EP_CONTROL];
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// Data IN stage has been stopped by a status OUT
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if (csr & AT91C_UDP_RX_DATA_BK0) {
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pUdp->UDP_CSR[0] &= ~(AT91C_UDP_RX_DATA_BK0);
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UDP_CLEAR_EP_FLAGS(AT91C_EP_CONTROL, AT91C_UDP_RX_DATA_BK0);
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return;
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}
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} while ( !(csr & AT91C_UDP_TXCOMP) );
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} while (length);
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if (pUdp->UDP_CSR[0] & AT91C_UDP_TXCOMP) {
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pUdp->UDP_CSR[0] &= ~(AT91C_UDP_TXCOMP);
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while (pUdp->UDP_CSR[0] & AT91C_UDP_TXCOMP);
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if (pUdp->UDP_CSR[AT91C_EP_CONTROL] & AT91C_UDP_TXCOMP) {
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UDP_CLEAR_EP_FLAGS(AT91C_EP_CONTROL, AT91C_UDP_TXCOMP);
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while (pUdp->UDP_CSR[AT91C_EP_CONTROL] & AT91C_UDP_TXCOMP);
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}
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}
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@ -429,10 +482,10 @@ static void AT91F_USB_SendData(AT91PS_UDP pUdp, const char *pData, uint32_t leng
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//* \brief Send zero length packet through the control endpoint
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//*----------------------------------------------------------------------------
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void AT91F_USB_SendZlp(AT91PS_UDP pUdp) {
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pUdp->UDP_CSR[0] |= AT91C_UDP_TXPKTRDY;
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while ( !(pUdp->UDP_CSR[0] & AT91C_UDP_TXCOMP) );
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pUdp->UDP_CSR[0] &= ~(AT91C_UDP_TXCOMP);
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while (pUdp->UDP_CSR[0] & AT91C_UDP_TXCOMP);
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UDP_SET_EP_FLAGS(AT91C_EP_CONTROL, AT91C_UDP_TXPKTRDY);
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while ( !(pUdp->UDP_CSR[AT91C_EP_CONTROL] & AT91C_UDP_TXCOMP) );
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UDP_CLEAR_EP_FLAGS(AT91C_EP_CONTROL, AT91C_UDP_TXCOMP);
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while (pUdp->UDP_CSR[AT91C_EP_CONTROL] & AT91C_UDP_TXCOMP);
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}
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//*----------------------------------------------------------------------------
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@ -440,10 +493,10 @@ void AT91F_USB_SendZlp(AT91PS_UDP pUdp) {
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//* \brief Stall the control endpoint
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//*----------------------------------------------------------------------------
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void AT91F_USB_SendStall(AT91PS_UDP pUdp) {
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pUdp->UDP_CSR[0] |= AT91C_UDP_FORCESTALL;
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while ( !(pUdp->UDP_CSR[0] & AT91C_UDP_ISOERROR) );
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pUdp->UDP_CSR[0] &= ~(AT91C_UDP_FORCESTALL | AT91C_UDP_ISOERROR);
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while (pUdp->UDP_CSR[0] & (AT91C_UDP_FORCESTALL | AT91C_UDP_ISOERROR));
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UDP_SET_EP_FLAGS(AT91C_EP_CONTROL, AT91C_UDP_FORCESTALL);
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while ( !(pUdp->UDP_CSR[AT91C_EP_CONTROL] & AT91C_UDP_ISOERROR) );
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UDP_CLEAR_EP_FLAGS(AT91C_EP_CONTROL, AT91C_UDP_FORCESTALL | AT91C_UDP_ISOERROR);
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while (pUdp->UDP_CSR[AT91C_EP_CONTROL] & (AT91C_UDP_FORCESTALL | AT91C_UDP_ISOERROR));
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}
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//*----------------------------------------------------------------------------
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@ -454,7 +507,7 @@ void AT91F_CDC_Enumerate() {
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byte_t bmRequestType, bRequest;
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uint16_t wValue, wIndex, wLength, wStatus;
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if ( !(pUdp->UDP_CSR[0] & AT91C_UDP_RXSETUP) )
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if ( !(pUdp->UDP_CSR[AT91C_EP_CONTROL] & AT91C_UDP_RXSETUP) )
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return;
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bmRequestType = pUdp->UDP_FDR[0];
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@ -467,11 +520,11 @@ void AT91F_CDC_Enumerate() {
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wLength |= (pUdp->UDP_FDR[0] << 8);
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if (bmRequestType & 0x80) {
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pUdp->UDP_CSR[0] |= AT91C_UDP_DIR;
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while ( !(pUdp->UDP_CSR[0] & AT91C_UDP_DIR) );
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UDP_SET_EP_FLAGS(AT91C_EP_CONTROL, AT91C_UDP_DIR);
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while ( !(pUdp->UDP_CSR[AT91C_EP_CONTROL] & AT91C_UDP_DIR) );
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}
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pUdp->UDP_CSR[0] &= ~AT91C_UDP_RXSETUP;
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while ( (pUdp->UDP_CSR[0] & AT91C_UDP_RXSETUP) );
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UDP_CLEAR_EP_FLAGS(AT91C_EP_CONTROL, AT91C_UDP_RXSETUP);
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while ( (pUdp->UDP_CSR[AT91C_EP_CONTROL] & AT91C_UDP_RXSETUP) );
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// Handle supported standard device request Cf Table 9-3 in USB specification Rev 1.1
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switch ((bRequest << 8) | bmRequestType) {
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@ -480,8 +533,14 @@ void AT91F_CDC_Enumerate() {
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AT91F_USB_SendData(pUdp, devDescriptor, MIN(sizeof(devDescriptor), wLength));
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else if (wValue == 0x200) // Return Configuration Descriptor
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AT91F_USB_SendData(pUdp, cfgDescriptor, MIN(sizeof(cfgDescriptor), wLength));
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else if ((wValue & 0x300) == 0x300) // Return String Descriptor
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AT91F_USB_SendData(pUdp, strDescriptor, MIN(sizeof(strDescriptor), wLength));
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else if ((wValue & 0xF00) == 0x300) { // Return String Descriptor
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const char *strDescriptor = getStringDescriptor(wValue & 0xff);
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if (strDescriptor != NULL) {
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AT91F_USB_SendData(pUdp, strDescriptor, MIN(strDescriptor[0], wLength));
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} else {
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AT91F_USB_SendStall(pUdp);
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}
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}
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else
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AT91F_USB_SendStall(pUdp);
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break;
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@ -561,8 +620,8 @@ void AT91F_CDC_Enumerate() {
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// handle CDC class requests
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case SET_LINE_CODING:
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while ( !(pUdp->UDP_CSR[0] & AT91C_UDP_RX_DATA_BK0) );
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pUdp->UDP_CSR[0] &= ~(AT91C_UDP_RX_DATA_BK0);
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while ( !(pUdp->UDP_CSR[AT91C_EP_CONTROL] & AT91C_UDP_RX_DATA_BK0) );
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UDP_CLEAR_EP_FLAGS(AT91C_EP_CONTROL, AT91C_UDP_RX_DATA_BK0);
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AT91F_USB_SendZlp(pUdp);
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break;
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case GET_LINE_CODING:
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