USB host library, support isochronous,bulk,interrupt and control.
Dependents: BaseUsbHost_example BaseJpegDecode_example SimpleJpegDecode_example
Import programBaseUsbHost_example
BaseUsbHost example program
Diff: BaseUsbHostHub.cpp
- Revision:
- 0:b7d6879637a8
- Child:
- 2:fe1e62051d88
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/BaseUsbHostHub.cpp Tue Dec 04 13:29:41 2012 +0000 @@ -0,0 +1,135 @@ +// BaseUsbHostHub.cpp 2012/12/4 +#include "mbed.h" +#include "rtos.h" +#include "BaseUsbHost.h" +#define DEBUG +#include "BaseUsbHostDebug.h" +#define TEST +#include "BaseUsbHostTest.h" + +#define PORT_CONNECTION 0 +#define PORT_ENABLE 1 +#define PORT_SUSPEND 2 +#define PORT_OVER_CURRENT 3 +#define PORT_RESET 4 +#define PORT_POWER 8 +#define PORT_LOW_SPEED 9 + +#define C_PORT_CONNECTION 16 +#define C_PORT_ENABLE 17 +#define C_PORT_SUSPEND 18 +#define C_PORT_OVER_CURRENT 19 +#define C_PORT_RESET 20 + +int UsbHub::SetPortFeature(int feature, int index) +{ + return m_ctlEp->controlSend(0x23, SET_FEATURE,feature,index,0,0); +} + +int UsbHub::ClearPortFeature(int feature, int index) +{ + return m_ctlEp->controlSend(0x23, CLEAR_FEATURE,feature,index,0,0); +} + +int UsbHub::SetPortPower(int port) +{ + return SetPortFeature(PORT_POWER, port); +} + +int UsbHub::SetPortReset(int port) +{ + return SetPortFeature(PORT_RESET, port); +} + +int UsbHub::GetPortStatus(int port, uint32_t* status) +{ + return m_ctlEp->controlReceive(0xa3, GET_STATUS, 0, port, (uint8_t*)status, 4); +} + +UsbHub::UsbHub(ControlEp* ctlEp) +{ + for(int i = 0; i < MAX_HUB_PORT; i++) { + PortEp[i] = NULL; + } + + if (ctlEp == NULL) { + DBG_OHCI(LPC_USB->HcRhPortStatus1); + int lowSpeed = 0; + if (LPC_USB->HcRhPortStatus1 & 0x200) { + lowSpeed = 1; + } + m_ctlEp = new ControlEp(lowSpeed); + TEST_ASSERT_TRUE(m_ctlEp); + } else { + m_ctlEp = ctlEp; + } + uint8_t desc[9]; + m_ctlEp->GetDescriptor(1, 0, desc, sizeof(desc)); + DBG_HEX(desc, sizeof(desc)); + TEST_ASSERT_TRUE(desc[0] == 0x12); + TEST_ASSERT_TRUE(desc[1] == 0x01); + TEST_ASSERT_TRUE(desc[4] == 0x09); // hub + if (desc[4] != 0x09) { // hub ? + return; + } + + m_ctlEp->controlReceive(0xa0, 6, 0x29<<8, 0, desc, sizeof(desc)); + DBG_HEX(desc, sizeof(desc)); + TEST_ASSERT_TRUE(desc[0] == 9); // length + TEST_ASSERT_TRUE(desc[1] == 0x29); // hub + int bNbrPorts = desc[2]; + TEST_ASSERT_TRUE(bNbrPorts <= MAX_HUB_PORT); + m_ctlEp->SetConfiguration(1); + + uint32_t status; + m_ctlEp->controlReceive(0xa0, 0, 0, 0, (uint8_t*)&status, 4); + DBG("HUB STATUS: %08X\n", status); + + for(int i = 1; i <= bNbrPorts; i++) { + SetPortFeature(PORT_POWER, i); // power on + } + + for(int i = 1; i <= bNbrPorts; i++) { + uint32_t status; + GetPortStatus(i, &status); + DBG("port: %d status: %08X\n", i, status); + if (status & 0x010000) { // Connect Status Change, has changed + TEST_ASSERT(status & 0x000001); + ClearPortFeature(C_PORT_CONNECTION, i); + bool low_speed = false; + if (status & 0x0200) { + low_speed = true; + } + DeviceConnected(i, low_speed); + } + } +} + +void UsbHub::DeviceConnected(int port, int low_speed) +{ + DBG("port=%d low_speed=%d\n", port, low_speed); + PortReset(port); + ControlEp* ctlEp = new ControlEp(low_speed); + TEST_ASSERT_TRUE(ctlEp); + + PortEp[port-1] = ctlEp; + DBG("PortEp[%d]: %p\n", port-1, PortEp[port-1]); +} + +int UsbHub::PortReset(int port) +{ + DBG("%p port=%d\n", this, port); + TEST_ASSERT(port >= 1); + SetPortReset(port); + // wait reset + for(int i = 0; i < 100; i++) { + uint32_t status; + GetPortStatus(port, &status); + DBG("RESET port: %d status: %08X\n", port, status); + if (status & 0x100000) { // Reset change , Reset complete + return USB_OK; + } + wait_ms(5); + } + return USB_ERROR; +}