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Dependencies:   FatFileSystem TB6612FNG2 mbed

usb/UsbHostMgr2.cpp@0:de03cbbcd0ff, 2015-11-30 (annotated)

Committer:
mbed_Cookbook_SE
Date:
Mon Nov 30 09:32:15 2015 +0000
Revision:
0:de03cbbcd0ff
??

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_Cookbook_SE 0:de03cbbcd0ff 1 #include "UsbHostMgr.h"
mbed_Cookbook_SE 0:de03cbbcd0ff 2 //#define __DEBUG
mbed_Cookbook_SE 0:de03cbbcd0ff 3 #include "mydbg.h"
mbed_Cookbook_SE 0:de03cbbcd0ff 4
mbed_Cookbook_SE 0:de03cbbcd0ff 5 UsbDevice* UsbHostMgr::getDeviceByClass(uint8_t IfClass, int count)
mbed_Cookbook_SE 0:de03cbbcd0ff 6 {
mbed_Cookbook_SE 0:de03cbbcd0ff 7 DBG("IfClass=%02X count=%d\n", IfClass, count);
mbed_Cookbook_SE 0:de03cbbcd0ff 8 for(int i = 0; i < USB_HOSTMGR_MAX_DEVS; i++) {
mbed_Cookbook_SE 0:de03cbbcd0ff 9 UsbDevice* dev = m_lpDevices[i];
mbed_Cookbook_SE 0:de03cbbcd0ff 10 if (dev) {
mbed_Cookbook_SE 0:de03cbbcd0ff 11 if(dev->m_connected && dev->m_enumerated) {
mbed_Cookbook_SE 0:de03cbbcd0ff 12 if (dev->m_InterfaceClass == IfClass) { // found
mbed_Cookbook_SE 0:de03cbbcd0ff 13 if (count-- <= 0) {
mbed_Cookbook_SE 0:de03cbbcd0ff 14 return dev;
mbed_Cookbook_SE 0:de03cbbcd0ff 15 }
mbed_Cookbook_SE 0:de03cbbcd0ff 16 }
mbed_Cookbook_SE 0:de03cbbcd0ff 17 }
mbed_Cookbook_SE 0:de03cbbcd0ff 18 }
mbed_Cookbook_SE 0:de03cbbcd0ff 19 }
mbed_Cookbook_SE 0:de03cbbcd0ff 20 return NULL;
mbed_Cookbook_SE 0:de03cbbcd0ff 21 }
mbed_Cookbook_SE 0:de03cbbcd0ff 22
mbed_Cookbook_SE 0:de03cbbcd0ff 23 void UsbHostMgr::onUsbDeviceConnected(int hub, int port)
mbed_Cookbook_SE 0:de03cbbcd0ff 24 {
mbed_Cookbook_SE 0:de03cbbcd0ff 25 DBG("%p hub=%d port=%d\n", this, hub, port);
mbed_Cookbook_SE 0:de03cbbcd0ff 26 for(int i = 0; i < USB_HOSTMGR_MAX_DEVS; i++) {
mbed_Cookbook_SE 0:de03cbbcd0ff 27 UsbDevice* dev = m_lpDevices[i];
mbed_Cookbook_SE 0:de03cbbcd0ff 28 if (dev) {
mbed_Cookbook_SE 0:de03cbbcd0ff 29 if (dev->m_hub == hub && dev->m_port == port) { // skip
mbed_Cookbook_SE 0:de03cbbcd0ff 30 return;
mbed_Cookbook_SE 0:de03cbbcd0ff 31 }
mbed_Cookbook_SE 0:de03cbbcd0ff 32 }
mbed_Cookbook_SE 0:de03cbbcd0ff 33 }
mbed_Cookbook_SE 0:de03cbbcd0ff 34
mbed_Cookbook_SE 0:de03cbbcd0ff 35 int item = devicesCount();
mbed_Cookbook_SE 0:de03cbbcd0ff 36 DBG_ASSERT(item < USB_HOSTMGR_MAX_DEVS);
mbed_Cookbook_SE 0:de03cbbcd0ff 37 if( item == USB_HOSTMGR_MAX_DEVS )
mbed_Cookbook_SE 0:de03cbbcd0ff 38 return; //List full...
mbed_Cookbook_SE 0:de03cbbcd0ff 39 //Find a free address (not optimized, but not really important)
mbed_Cookbook_SE 0:de03cbbcd0ff 40 int addr = 1;
mbed_Cookbook_SE 0:de03cbbcd0ff 41 for(int i = 0; i < item; i++)
mbed_Cookbook_SE 0:de03cbbcd0ff 42 {
mbed_Cookbook_SE 0:de03cbbcd0ff 43 DBG_ASSERT(m_lpDevices[i]);
mbed_Cookbook_SE 0:de03cbbcd0ff 44 addr = MAX( addr, m_lpDevices[i]->m_addr + 1 );
mbed_Cookbook_SE 0:de03cbbcd0ff 45 }
mbed_Cookbook_SE 0:de03cbbcd0ff 46 DBG("item=%d addr=%d\n", item, addr);
mbed_Cookbook_SE 0:de03cbbcd0ff 47 UsbDevice* dev = new UsbDevice( this, hub, port, addr );
mbed_Cookbook_SE 0:de03cbbcd0ff 48 DBG_ASSERT(dev);
mbed_Cookbook_SE 0:de03cbbcd0ff 49 dev->m_connected = true;
mbed_Cookbook_SE 0:de03cbbcd0ff 50 m_lpDevices[item] = dev;
mbed_Cookbook_SE 0:de03cbbcd0ff 51 }