+//-----------------------------------------------------------------------------
+// Jonathan Westhues, split Aug 14 2005
+//
+// This code is licensed to you under the terms of the GNU GPL, version 2 or,
+// at your option, any later version. See the LICENSE.txt file for the text of
+// the license.
+//-----------------------------------------------------------------------------
+// The common USB driver used for both the bootloader and the application.
+//-----------------------------------------------------------------------------
+
+#include "proxmark3.h"
+#include "usb_hid.h"
+
+#define min(a, b) (((a) > (b)) ? (b) : (a))
+
+#define USB_REPORT_PACKET_SIZE 64
+
+typedef struct PACKED {
+ uint8_t bmRequestType;
+ uint8_t bRequest;
+ uint16_t wValue;
+ uint16_t wIndex;
+ uint16_t wLength;
+} UsbSetupData;
+
+#define USB_REQUEST_GET_STATUS 0
+#define USB_REQUEST_CLEAR_FEATURE 1
+#define USB_REQUEST_SET_FEATURE 3
+#define USB_REQUEST_SET_ADDRESS 5
+#define USB_REQUEST_GET_DESCRIPTOR 6
+#define USB_REQUEST_SET_DESCRIPTOR 7
+#define USB_REQUEST_GET_CONFIGURATION 8
+#define USB_REQUEST_SET_CONFIGURATION 9
+#define USB_REQUEST_GET_INTERFACE 10
+#define USB_REQUEST_SET_INTERFACE 11
+#define USB_REQUEST_SYNC_FRAME 12
+
+#define USB_DESCRIPTOR_TYPE_DEVICE 1
+#define USB_DESCRIPTOR_TYPE_CONFIGURATION 2
+#define USB_DESCRIPTOR_TYPE_STRING 3
+#define USB_DESCRIPTOR_TYPE_INTERFACE 4
+#define USB_DESCRIPTOR_TYPE_ENDPOINT 5
+#define USB_DESCRIPTOR_TYPE_DEVICE_QUALIFIER 6
+#define USB_DESCRIPTOR_TYPE_OTHER_SPEED_CONF 7
+#define USB_DESCRIPTOR_TYPE_INTERFACE_POWER 8
+#define USB_DESCRIPTOR_TYPE_HID 0x21
+#define USB_DESCRIPTOR_TYPE_HID_REPORT 0x22
+
+#define USB_DEVICE_CLASS_HID 0x03
+
+static const uint8_t HidReportDescriptor[] = {
+ 0x06,0xA0,0xFF, // Usage Page (vendor defined) FFA0
+ 0x09,0x01, // Usage (vendor defined)
+ 0xA1,0x01, // Collection (Application)
+ 0x09,0x02, // Usage (vendor defined)
+ 0xA1,0x00, // Collection (Physical)
+ 0x06,0xA1,0xFF, // Usage Page (vendor defined)
+
+ //The,input report
+ 0x09,0x03, // usage - vendor defined
+ 0x09,0x04, // usage - vendor defined
+ 0x15,0x80, // Logical Minimum (-128)
+ 0x25,0x7F, // Logical Maximum (127)
+ 0x35,0x00, // Physical Minimum (0)
+ 0x45,0xFF, // Physical Maximum (255)
+ 0x75,0x08, // Report Size (8) (bits)
+ 0x95,0x40, // Report Count (64) (fields)
+ 0x81,0x02, // Input (Data,Variable,Absolute)
+
+ //The,output report
+ 0x09,0x05, // usage - vendor defined
+ 0x09,0x06, // usage - vendor defined
+ 0x15,0x80, // Logical Minimum (-128)
+ 0x25,0x7F, // Logical Maximum (127)
+ 0x35,0x00, // Physical Minimum (0)
+ 0x45,0xFF, // Physical Maximum (255)
+ 0x75,0x08, // Report Size (8) (bits)
+ 0x95,0x40, // Report Count (64) (fields)
+ 0x91,0x02, // Output (Data,Variable,Absolute)
+
+ 0xC0, // End Collection
+
+ 0xC0, // End Collection
+};
+
+static const uint8_t DeviceDescriptor[] = {
+ 0x12, // Descriptor length (18 bytes)
+ 0x01, // Descriptor type (Device)
+ 0x10,0x01, // Complies with USB Spec. Release (0110h = release 1.10)
+ 0x00, // Class code (0)
+ 0x00, // Subclass code (0)
+ 0x00, // Protocol (No specific protocol)
+ 0x08, // Maximum packet size for Endpoint 0 (8 bytes)
+ 0xc4,0x9a, // Vendor ID (random numbers)
+ 0x8f,0x4b, // Product ID (random numbers)
+ 0x01,0x00, // Device release number (0001)
+ 0x01, // Manufacturer string descriptor index
+ 0x02, // Product string descriptor index
+ 0x03, // Serial Number string descriptor index
+ 0x01, // Number of possible configurations (1)
+};
+
+static const uint8_t ConfigurationDescriptor[] = {
+ 0x09, // Descriptor length (9 bytes)
+ 0x02, // Descriptor type (Configuration)
+ 0x29,0x00, // Total data length (41 bytes)
+ 0x01, // Interface supported (1)
+ 0x01, // Configuration value (1)
+ 0x00, // Index of string descriptor (None)
+ 0x80, // Configuration (Bus powered)
+ 250, // Maximum power consumption (500mA)
+
+ //interface
+ 0x09, // Descriptor length (9 bytes)
+ 0x04, // Descriptor type (Interface)
+ 0x00, // Number of interface (0)
+ 0x00, // Alternate setting (0)
+ 0x02, // Number of interface endpoint (2)
+ 0x03, // Class code (HID)
+ 0x00, // Subclass code ()
+ 0x00, // Protocol code ()
+ 0x00, // Index of string()
+
+ // class
+ 0x09, // Descriptor length (9 bytes)
+ 0x21, // Descriptor type (HID)
+ 0x00,0x01, // HID class release number (1.00)
+ 0x00, // Localized country code (None)
+ 0x01, // # of HID class dscrptr to follow (1)
+ 0x22, // Report descriptor type (HID)
+ // Total length of report descriptor
+ sizeof(HidReportDescriptor),0x00,
+
+ // endpoint 1
+ 0x07, // Descriptor length (7 bytes)
+ 0x05, // Descriptor type (Endpoint)
+ 0x01, // Encoded address (Respond to OUT)
+ 0x03, // Endpoint attribute (Interrupt transfer)
+ 0x08,0x00, // Maximum packet size (8 bytes)
+ 0x01, // Polling interval (1 ms)
+
+ // endpoint 2
+ 0x07, // Descriptor length (7 bytes)
+ 0x05, // Descriptor type (Endpoint)
+ 0x82, // Encoded address (Respond to IN)
+ 0x03, // Endpoint attribute (Interrupt transfer)
+ 0x08,0x00, // Maximum packet size (8 bytes)
+ 0x01, // Polling interval (1 ms)
+};
+
+static const uint8_t StringDescriptor0[] = {
+ 0x04, // Length
+ 0x03, // Type is string
+ 0x09, // English
+ 0x04, // US
+};
+
+static const uint8_t StringDescriptor1[] = {
+ 24, // Length
+ 0x03, // Type is string
+ 'J', 0x00,
+ '.', 0x00,
+ ' ', 0x00,
+ 'W', 0x00,
+ 'e', 0x00,
+ 's', 0x00,
+ 't', 0x00,
+ 'h', 0x00,
+ 'u', 0x00,
+ 'e', 0x00,
+ 's', 0x00,
+};
+
+static const uint8_t StringDescriptor2[] = {
+ 54, // Length
+ 0x03, // Type is string
+ 'P', 0x00,
+ 'r', 0x00,
+ 'o', 0x00,
+ 'x', 0x00,
+ 'M', 0x00,
+ 'a', 0x00,
+ 'r', 0x00,
+ 'k', 0x00,
+ '-', 0x00,
+ '3', 0x00,
+ ' ', 0x00,
+ 'R', 0x00,
+ 'F', 0x00,
+ 'I', 0x00,
+ 'D', 0x00,
+ ' ', 0x00,
+ 'I', 0x00,
+ 'n', 0x00,
+ 's', 0x00,
+ 't', 0x00,
+ 'r', 0x00,
+ 'u', 0x00,
+ 'm', 0x00,
+ 'e', 0x00,
+ 'n', 0x00,
+ 't', 0x00,
+};
+
+// Serial Number
+// TODO: Pick yours! Don't forget to modify the length, if needed.
+static const uint8_t StringDescriptor3[] = {
+ 18, // Length
+ 0x03, // Type is string
+ 'C', 0x00,
+ 'h', 0x00,
+ 'a', 0x00,
+ 'n', 0x00,
+ 'g', 0x00,
+ 'e', 0x00,
+ 'M', 0x00,
+ 'e', 0x00,
+};
+
+static const uint8_t * const StringDescriptors[] = {
+ StringDescriptor0,
+ StringDescriptor1,
+ StringDescriptor2,
+ StringDescriptor3,
+};
+
+
+static uint8_t UsbBuffer[64];
+static int UsbSoFarCount;
+
+static uint8_t CurrentConfiguration;
+
+static void UsbSendEp0(const uint8_t *data, int len)
+{
+ int thisTime, i;
+
+ do {
+ thisTime = min(len, 8);
+ len -= thisTime;
+
+ for(i = 0; i < thisTime; i++) {
+ AT91C_BASE_UDP->UDP_FDR[0] = *data;
+ data++;
+ }
+
+ if(AT91C_BASE_UDP->UDP_CSR[0] & AT91C_UDP_TXCOMP) {
+ AT91C_BASE_UDP->UDP_CSR[0] &= ~AT91C_UDP_TXCOMP;
+ while(AT91C_BASE_UDP->UDP_CSR[0] & AT91C_UDP_TXCOMP)
+ ;
+ }
+
+ AT91C_BASE_UDP->UDP_CSR[0] |= AT91C_UDP_TXPKTRDY;
+
+ do {
+ if(AT91C_BASE_UDP->UDP_CSR[0] & AT91C_UDP_RX_DATA_BK0) {
+ // This means that the host is trying to write to us, so
+ // abandon our write to them.
+ AT91C_BASE_UDP->UDP_CSR[0] &= ~AT91C_UDP_RX_DATA_BK0;
+ return;
+ }
+ } while(!(AT91C_BASE_UDP->UDP_CSR[0] & AT91C_UDP_TXCOMP));
+ } while(len > 0);
+
+ if(AT91C_BASE_UDP->UDP_CSR[0] & AT91C_UDP_TXCOMP) {
+ AT91C_BASE_UDP->UDP_CSR[0] &= ~AT91C_UDP_TXCOMP;
+ while(AT91C_BASE_UDP->UDP_CSR[0] & AT91C_UDP_TXCOMP)
+ ;
+ }
+}
+
+static void UsbSendZeroLength(void)
+{
+ AT91C_BASE_UDP->UDP_CSR[0] |= AT91C_UDP_TXPKTRDY;
+
+ while(!(AT91C_BASE_UDP->UDP_CSR[0] & AT91C_UDP_TXCOMP))
+ ;
+
+ AT91C_BASE_UDP->UDP_CSR[0] &= ~AT91C_UDP_TXCOMP;
+
+ while(AT91C_BASE_UDP->UDP_CSR[0] & AT91C_UDP_TXCOMP)
+ ;
+}
+
+static void UsbSendStall(void)
+{
+ AT91C_BASE_UDP->UDP_CSR[0] |= AT91C_UDP_FORCESTALL;
+
+ while(!(AT91C_BASE_UDP->UDP_CSR[0] & AT91C_UDP_STALLSENT))
+ ;
+
+ AT91C_BASE_UDP->UDP_CSR[0] &= ~AT91C_UDP_STALLSENT;
+
+ while(AT91C_BASE_UDP->UDP_CSR[0] & AT91C_UDP_STALLSENT)
+ ;
+}
+
+static void HandleRxdSetupData(void)
+{
+ int i;
+ UsbSetupData usd;
+
+ for(i = 0; i < sizeof(usd); i++) {
+ ((uint8_t *)&usd)[i] = AT91C_BASE_UDP->UDP_FDR[0];
+ }
+
+ if(usd.bmRequestType & 0x80) {
+ AT91C_BASE_UDP->UDP_CSR[0] |= AT91C_UDP_DIR;
+ while(!(AT91C_BASE_UDP->UDP_CSR[0] & AT91C_UDP_DIR))
+ ;
+ }
+
+ AT91C_BASE_UDP->UDP_CSR[0] &= ~AT91C_UDP_RXSETUP;
+ while(AT91C_BASE_UDP->UDP_CSR[0] & AT91C_UDP_RXSETUP)
+ ;
+
+ switch(usd.bRequest) {
+ case USB_REQUEST_GET_DESCRIPTOR:
+ if((usd.wValue >> 8) == USB_DESCRIPTOR_TYPE_DEVICE) {
+ UsbSendEp0((uint8_t *)&DeviceDescriptor,
+ min(sizeof(DeviceDescriptor), usd.wLength));
+ } else if((usd.wValue >> 8) == USB_DESCRIPTOR_TYPE_CONFIGURATION) {
+ UsbSendEp0((uint8_t *)&ConfigurationDescriptor,
+ min(sizeof(ConfigurationDescriptor), usd.wLength));
+ } else if((usd.wValue >> 8) == USB_DESCRIPTOR_TYPE_STRING) {
+ const uint8_t *s = StringDescriptors[usd.wValue & 0xff];
+ UsbSendEp0(s, min(s[0], usd.wLength));
+ } else if((usd.wValue >> 8) == USB_DESCRIPTOR_TYPE_HID_REPORT) {
+ UsbSendEp0((uint8_t *)&HidReportDescriptor,
+ min(sizeof(HidReportDescriptor), usd.wLength));
+ } else {
+ *((uint32_t *)0x00200000) = usd.wValue;
+ }
+ break;
+
+ case USB_REQUEST_SET_ADDRESS:
+ UsbSendZeroLength();
+ AT91C_BASE_UDP->UDP_FADDR = AT91C_UDP_FEN | usd.wValue ;
+ if(usd.wValue != 0) {
+ AT91C_BASE_UDP->UDP_GLBSTATE = AT91C_UDP_FADDEN;
+ } else {
+ AT91C_BASE_UDP->UDP_GLBSTATE = 0;
+ }
+ break;
+
+ case USB_REQUEST_GET_CONFIGURATION:
+ UsbSendEp0(&CurrentConfiguration, sizeof(CurrentConfiguration));
+ break;
+
+ case USB_REQUEST_GET_STATUS: {
+ if(usd.bmRequestType & 0x80) {
+ uint16_t w = 0;
+ UsbSendEp0((uint8_t *)&w, sizeof(w));
+ }
+ break;
+ }
+ case USB_REQUEST_SET_CONFIGURATION:
+ CurrentConfiguration = usd.wValue;
+ if(CurrentConfiguration) {
+ AT91C_BASE_UDP->UDP_GLBSTATE = AT91C_UDP_CONFG;
+ AT91C_BASE_UDP->UDP_CSR[1] = AT91C_UDP_EPEDS |
+ AT91C_UDP_EPTYPE_INT_OUT;
+ AT91C_BASE_UDP->UDP_CSR[2] = AT91C_UDP_EPEDS |
+ AT91C_UDP_EPTYPE_INT_IN;
+ } else {
+ AT91C_BASE_UDP->UDP_GLBSTATE = AT91C_UDP_FADDEN;
+ AT91C_BASE_UDP->UDP_CSR[1] = 0;
+ AT91C_BASE_UDP->UDP_CSR[2] = 0;
+ }
+ UsbSendZeroLength();
+ break;
+
+ case USB_REQUEST_GET_INTERFACE: {
+ uint8_t b = 0;
+ UsbSendEp0(&b, sizeof(b));
+ break;
+ }
+
+ case USB_REQUEST_SET_INTERFACE:
+ UsbSendZeroLength();
+ break;
+
+ case USB_REQUEST_CLEAR_FEATURE:
+ case USB_REQUEST_SET_FEATURE:
+ UsbSendStall();
+ break;
+ case USB_REQUEST_SET_DESCRIPTOR:
+ case USB_REQUEST_SYNC_FRAME:
+ default:
+ break;
+ }
+}
+
+void UsbSendPacket(uint8_t *packet, int len)
+{
+ int i, thisTime;
+
+ while(len > 0) {
+ thisTime = min(len, 8);
+
+ for(i = 0; i < thisTime; i++) {
+ AT91C_BASE_UDP->UDP_FDR[2] = packet[i];
+ }
+ AT91C_BASE_UDP->UDP_CSR[2] |= AT91C_UDP_TXPKTRDY;
+
+ while(!(AT91C_BASE_UDP->UDP_CSR[2] & AT91C_UDP_TXCOMP)) {
+ WDT_HIT();
+ }
+
+ AT91C_BASE_UDP->UDP_CSR[2] &= ~AT91C_UDP_TXCOMP;
+
+ while(AT91C_BASE_UDP->UDP_CSR[2] & AT91C_UDP_TXCOMP) {
+ WDT_HIT();
+ }
+
+ len -= thisTime;
+ packet += thisTime;
+ }
+}
+
+static void HandleRxdData(void)
+{
+ int i, len;
+
+ if(AT91C_BASE_UDP->UDP_CSR[1] & AT91C_UDP_RX_DATA_BK0) {
+ len = UDP_CSR_BYTES_RECEIVED(AT91C_BASE_UDP->UDP_CSR[1]);
+
+ for(i = 0; i < len; i++) {
+ UsbBuffer[UsbSoFarCount] = AT91C_BASE_UDP->UDP_FDR[1];
+ UsbSoFarCount++;
+ }
+
+ AT91C_BASE_UDP->UDP_CSR[1] &= ~AT91C_UDP_RX_DATA_BK0;
+ while(AT91C_BASE_UDP->UDP_CSR[1] & AT91C_UDP_RX_DATA_BK0) {
+ WDT_HIT();
+ }
+
+ if(UsbSoFarCount >= 64) {
+ UsbPacketReceived(UsbBuffer, UsbSoFarCount);
+ UsbSoFarCount = 0;
+ }
+ }
+
+ if(AT91C_BASE_UDP->UDP_CSR[1] & AT91C_UDP_RX_DATA_BK1) {
+ len = UDP_CSR_BYTES_RECEIVED(AT91C_BASE_UDP->UDP_CSR[1]);
+
+ for(i = 0; i < len; i++) {
+ UsbBuffer[UsbSoFarCount] = AT91C_BASE_UDP->UDP_FDR[1];
+ UsbSoFarCount++;
+ }
+
+ AT91C_BASE_UDP->UDP_CSR[1] &= ~AT91C_UDP_RX_DATA_BK1;
+ while(AT91C_BASE_UDP->UDP_CSR[1] & AT91C_UDP_RX_DATA_BK1) {
+ WDT_HIT();
+ }
+
+ if(UsbSoFarCount >= 64) {
+ UsbPacketReceived(UsbBuffer, UsbSoFarCount);
+ UsbSoFarCount = 0;
+ }
+ }
+
+ WDT_HIT();
+}
+
+void UsbStart(void)
+{
+ volatile int i;
+
+ UsbSoFarCount = 0;
+
+ USB_D_PLUS_PULLUP_OFF();
+
+ for(i = 0; i < 1000000; i++)
+ ;
+
+ USB_D_PLUS_PULLUP_ON();
+
+ if(AT91C_BASE_UDP->UDP_ISR & AT91C_UDP_ENDBUSRES) {
+ AT91C_BASE_UDP->UDP_ICR = AT91C_UDP_ENDBUSRES;
+ }
+}
+
+int UsbConnected()
+{
+ if (AT91C_BASE_UDP->UDP_GLBSTATE & AT91C_UDP_CONFG)
+ return TRUE;
+ else
+ return FALSE;
+}
+
+int UsbPoll(int blinkLeds)
+{
+ int ret = FALSE;
+
+ if(AT91C_BASE_UDP->UDP_ISR & AT91C_UDP_ENDBUSRES) {
+ AT91C_BASE_UDP->UDP_ICR = AT91C_UDP_ENDBUSRES;
+
+ // following a reset we should be ready to receive a setup packet
+ AT91C_BASE_UDP->UDP_RSTEP = 0xf;
+ AT91C_BASE_UDP->UDP_RSTEP = 0;
+
+ AT91C_BASE_UDP->UDP_FADDR = AT91C_UDP_FEN;
+
+ AT91C_BASE_UDP->UDP_CSR[0] = AT91C_UDP_EPTYPE_CTRL | AT91C_UDP_EPEDS;
+
+ CurrentConfiguration = 0;
+
+ ret = TRUE;
+ }
+
+ if(AT91C_BASE_UDP->UDP_ISR & UDP_INTERRUPT_ENDPOINT(0)) {
+ if(AT91C_BASE_UDP->UDP_CSR[0] & AT91C_UDP_RXSETUP) {
+ HandleRxdSetupData();
+ ret = TRUE;
+ }
+ }
+
+ if(AT91C_BASE_UDP->UDP_ISR & UDP_INTERRUPT_ENDPOINT(1)) {
+ HandleRxdData();
+ ret = TRUE;
+ }
+
+ return ret;
+}
projects / proxmark3-svn / commitdiff