Important changes to repositories hosted on mbed.com
Mbed hosted mercurial repositories are deprecated and are due to be permanently deleted in July 2026.
To keep a copy of this software download the repository Zip archive or clone locally using Mercurial.
It is also possible to export all your personal repositories from the account settings page.
Dependents: F401RE-USBHostMIDI_RecieveExample
Fork of F401RE-USBHost by
Diff: USBHost.cpp
- Revision:
- 3:a3872f7593e2
- Parent:
- 2:0cdac6bcc534
- Child:
- 4:21d651ad6987
diff -r 0cdac6bcc534 -r a3872f7593e2 USBHost.cpp
--- a/USBHost.cpp Thu Jan 23 08:32:54 2014 +0000
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,226 +0,0 @@
-// Simple USBHost for FRDM-KL46Z
-#include "USBHost.h"
-#include <algorithm>
-
-template <bool>struct CtAssert;
-template <>struct CtAssert<true> {};
-#define CTASSERT(A) CtAssert<A>();
-
-
-#ifdef _USB_DBG
-#define USB_DBG(...) do{fprintf(stderr,"[%s@%d] ",__PRETTY_FUNCTION__,__LINE__);fprintf(stderr,__VA_ARGS__);fprintf(stderr,"\n");} while(0);
-#define USB_DBG_HEX(A,B) debug_hex(A,B)
-void debug_hex(uint8_t* buf, int size);
-#else
-#define USB_DBG(...) while(0)
-#define USB_DBG_HEX(A,B) while(0)
-#endif
-
-#define USB_TEST_ASSERT(A) while(!(A)){fprintf(stderr,"\n\n%s@%d %s ASSERT!\n\n",__PRETTY_FUNCTION__,__LINE__,#A);exit(1);};
-#define USB_TEST_ASSERT_FALSE(A) USB_TEST_ASSERT(!(A))
-
-USBHost* USBHost::inst = NULL;
-
-USBHost* USBHost::getHostInst()
-{
- if (inst == NULL) {
- inst = new USBHost();
- inst->init();
- }
- return inst;
-}
-
-USBHost::USBHost() {
-}
-
-/* virtual */ bool USBHost::enumeration() {
- uint8_t desc[64];
- MaxPacketSize0 = 8;
- dev_addr = 0;
- USB0->ADDR = (lowSpeed ? USB_ADDR_LSEN_MASK : 0x00) | USB_ADDR_ADDR(dev_addr);
- wait_ms(100);
- SETUP_PACKET setup_get_descriptor = {0x80, GET_DESCRIPTOR, 1<<8, 0, 0};
- int result = ControlRead(&setup_get_descriptor, desc, 8);
- if (result < 8) {
- USB_DBG("result=%d %02x", result, LastStatus);
- return false;
- }
- USB_DBG_HEX(desc, result);
- MaxPacketSize0 = desc[7];
-
- SETUP_PACKET setup_set_address = {0x00, SET_ADDRESS, 1, 0, 0};
- result = ControlWrite(&setup_set_address);
- if (result < 0) {
- USB_DBG("result=%d %02x", result, LastStatus);
- return false;
- }
- wait_ms(100);
- dev_addr = 1;
-
- result = ControlRead(&setup_get_descriptor, desc, sizeof(desc));
- if (result < 8) {
- USB_DBG("result=%d", result);
- return false;
- }
- USB_DBG_HEX(desc, result);
-
- setup_get_descriptor.wValue = 2<<8; // config descriptor
- result = ControlRead(&setup_get_descriptor, desc, 4);
- if (result != 4) {
- USB_DBG("result=%d", result);
- return false;
- }
- USB_DBG_HEX(desc, 4);
-
- int TotalLength = desc[2]|desc[3]<<8;
- uint8_t* buf = new uint8_t[TotalLength];
- result = ControlRead(&setup_get_descriptor, buf, TotalLength);
- if (result != TotalLength) {
- USB_DBG("result=%d TotalLength=%d %02x", result, TotalLength, LastStatus);
- return false;
- }
- USB_DBG_HEX(buf, TotalLength);
-
- for(int i = 0; i < TotalLength; ) {
- int Length = buf[i];
- uint8_t DescriptorType = buf[i+1];
- if (DescriptorType == 0x05) { // endpoint
- uint8_t EndpointAddress = buf[i+2];
- uint8_t Attributes = buf[i+3];
- if (Attributes == 0x03) { // interrupt
- if (EndpointAddress & 0x80) {
- ep_int_in = EndpointAddress;
- }
- } else if (Attributes == 0x02) { // bulk
- if (EndpointAddress & 0x80) {
- ep_bulk_in = EndpointAddress;
- } else {
- ep_bulk_out = EndpointAddress;
- }
- }
- }
- USB_DBG_HEX(buf+i, Length);
- i += Length;
- }
- delete[] buf;
-
- // config = 1
- SETUP_PACKET setup_set_config = {0x00, SET_CONFIGURATION, 1, 0, 0};
- result = ControlWrite(&setup_set_config);
- if (result < 0) {
- USB_DBG("set config: %02x", LastStatus);
- if (lowSpeed && LastStatus == STALL) { // TODO:
- wait_ms(100);
- return true;
- }
- return false;
- }
- wait_ms(100);
- return true;
-}
-
-int USBHost::ControlRead(SETUP_PACKET* setup, uint8_t* data, int size) {
- setAddr(dev_addr);
- token_setup(setup, size); // setup stage
- if (LastStatus != ACK) {
- USB_DBG("setup %02x", LastStatus);
- return -1;
- }
- rx_data01[0] = DATA1;
- int read_len = 0;
- while(read_len < size) {
- int size2 = std::min(size-read_len, MaxPacketSize0);
- int result = token_in(0, data+read_len, size2);
- //USB_DBG("token_in result=%d %02x", result, LastStatus);
- if (result < 0) {
- USB_DBG("token_in %d/%d %02x", read_len, size, LastStatus);
- return result;
- }
- read_len += result;
- if (result < MaxPacketSize0) {
- break;
- }
- }
- tx_data01[0] = rx_data01[0];
- int result = token_out(0); // status stage
- if (result < 0) {
- USB_DBG("status token_out %02x", LastStatus);
- if (LastStatus == STALL) {
- return read_len;
- }
- return result;
- }
- return read_len;
-}
-
-int USBHost::ControlWrite(SETUP_PACKET* setup, uint8_t* data, int size) {
- setAddr(dev_addr);
- token_setup(setup, size); // setup stage
- if (LastStatus != ACK) {
- USB_DBG("setup %02x", LastStatus);
- return -1;
- }
-
- tx_data01[0] = DATA1;
- int write_len = 0;
- if (data != NULL) {
- write_len = token_out(0, data, size);
- if (write_len < 0) {
- return -1;
- }
- }
- rx_data01[0] = tx_data01[0];
- int result = token_in(0); // status stage
- if (result < 0) {
- return result;
- }
- return write_len;
-}
-
-int USBHost::InterruptRead(uint8_t* data, int size) {
- setAddr(dev_addr);
- setEndpoint();
- const int retryLimit = 0;
- return token_in(ep_int_in & 0x7f, data, size, retryLimit);
-}
-
-int USBHost::BulkRead(uint8_t* data, int size) {
- setAddr(dev_addr);
- setEndpoint();
- const int max_packet_size = 64;
- int read_len = 0;
- while(read_len < size) {
- int size2 = std::min(size-read_len, max_packet_size);
- int result = token_in(ep_bulk_in & 0x7f, data+read_len, size2);
- if (result < 0) {
- //USB_DBG("token_in result=%d %02x", result, LastStatus);
- return result;
- }
- read_len += result;
- if (result < max_packet_size) {
- break;
- }
- }
- return read_len;
-}
-
-int USBHost::BulkWrite(const uint8_t* data, int size) {
- setAddr(dev_addr);
- setEndpoint();
- const int max_packet_size = 64;
- int write_len = 0;
- while(write_len < size) {
- int size2 = std::min(size-write_len, max_packet_size);
- int result = token_out(ep_bulk_out, data+write_len, size2);
- if (result < 0) {
- //USB_DBG("token_in result=%d %02x", result, LastStatus);
- return result;
- }
- write_len += result;
- if (result < max_packet_size) {
- break;
- }
- }
- return write_len;
-}
-
