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Code Issues Releases Wiki Activity

Respond to hub interrupt pipe by read & clear status

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This commit is contained in:
PaulStoffregen 2017-02-13 12:56:01 -08:00
parent 2423608e0f
commit a6352852ed
2 changed files with 57 additions and 2 deletions
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3
USBHost.h
View File

@ -232,8 +232,11 @@ protected:
virtual bool claim(Device_t *device, int type, const uint8_t *descriptors);
virtual bool control(const Transfer_t *transfer);
void poweron(uint32_t port);
void getstatus(uint32_t port);
void clearstatus(uint32_t port);
static void callback(const Transfer_t *transfer);
void status_change(const Transfer_t *transfer);
void update_status();
setup_t setup;
uint8_t hub_desc[16];
uint8_t endpoint;

56
hub.cpp
View File

@ -87,6 +87,26 @@ void USBHub::poweron(uint32_t port)
queue_Control_Transfer(device, &setup, NULL, this);
}
void USBHub::getstatus(uint32_t port)
{
if (port == 0) {
mk_setup(setup, 0xA0, 0, 0, port, 4); // get hub status
} else {
mk_setup(setup, 0xA3, 0, 0, port, 4); // get port status
}
queue_Control_Transfer(device, &setup, &status, this);
}
void USBHub::clearstatus(uint32_t port)
{
if (port == 0) {
mk_setup(setup, 0x20, 1, 0x10, port, 0); // clear hub status
} else {
mk_setup(setup, 0x23, 1, 0x10, port, 0); // clear port status
}
queue_Control_Transfer(device, &setup, NULL, this);
}
bool USBHub::control(const Transfer_t *transfer)
{
Serial.println("USBHub control callback");
@ -113,7 +133,6 @@ bool USBHub::control(const Transfer_t *transfer)
poweron(++state);
} else if (state == numports) {
Serial.println("power turned on to all ports");
// TODO: create interrupt pipe for status change notifications
Serial.print("device addr = ");
Serial.println(device->address);
changepipe = new_Pipe(device, 3, endpoint, 1, 1, 512);
@ -123,7 +142,28 @@ bool USBHub::control(const Transfer_t *transfer)
queue_Data_Transfer(changepipe, &changebits, 1, this);
state = 255;
} else if (state == 255) {
// parse a status response
// up and running...
switch (setup.word1) {
case 0x000000A0: // get hub status
Serial.println("New Hub Status");
clearstatus(0);
return true;
case 0x000000A3: // get port status
Serial.print("New Port Status, port=");
Serial.println(setup.wIndex);
clearstatus(setup.wIndex);
return true;
case 0x00100120: // clear hub status
Serial.println("Hub Status Cleared");
changebits &= ~1;
break;
case 0x00100123: // clear port status
Serial.print("Port Status Cleared, port=");
Serial.println(setup.wIndex);
changebits &= ~(1 << setup.wIndex);
break;
}
update_status();
}
return true;
}
@ -140,9 +180,21 @@ void USBHub::status_change(const Transfer_t *transfer)
Serial.print("status = ");
Serial.println(changebits, HEX);
// TODO: do something with the status change info
update_status();
queue_Data_Transfer(changepipe, &changebits, 1, this);
}
void USBHub::update_status()
{
uint32_t i, mask;
for (i=0, mask=1; i <= numports; i++, mask <<= 1) {
if (changebits & mask) {
getstatus(i);
return;
}
}
}
/*
config descriptor from a Multi-TT hub