Dieter Graef / USBHost_DISCO-F746NG

Simple USBHost library for STM32F746NG Discovery board. Only either the Fastspeed or the Highspeed port can be used( not both together)

Dependents:   DISCO-F746NG_USB_Host

Fork of KL46Z-USBHost by Norimasa Okamoto

USBHost/USBHostHub.cpp@10:40c7f6788902, 2014-02-05 (annotated)

Committer:
va009039
Date:
Wed Feb 05 13:34:37 2014 +0000
Revision:
10:40c7f6788902
Parent:
9:7f9f64cf5ded 
fix endpoint callback.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
va009039 8:6463cd1964c0 1 #include "USBHost.h"
va009039 8:6463cd1964c0 2
va009039 8:6463cd1964c0 3 #define PORT_CONNECTION 0
va009039 8:6463cd1964c0 4 #define PORT_ENABLE 1
va009039 8:6463cd1964c0 5 #define PORT_SUSPEND 2
va009039 8:6463cd1964c0 6 #define PORT_OVER_CURRENT 3
va009039 8:6463cd1964c0 7 #define PORT_RESET 4
va009039 8:6463cd1964c0 8 #define PORT_POWER 8
va009039 8:6463cd1964c0 9 #define PORT_LOW_SPEED 9
va009039 8:6463cd1964c0 10
va009039 8:6463cd1964c0 11 #define C_PORT_CONNECTION 16
va009039 8:6463cd1964c0 12 #define C_PORT_ENABLE 17
va009039 8:6463cd1964c0 13 #define C_PORT_SUSPEND 18
va009039 8:6463cd1964c0 14 #define C_PORT_OVER_CURRENT 19
va009039 8:6463cd1964c0 15 #define C_PORT_RESET 20
va009039 8:6463cd1964c0 16
va009039 8:6463cd1964c0 17 bool USBHost::Hub(USBDeviceConnected* dev) {
va009039 10:40c7f6788902 18 USB_INFO("New HUB: VID:%04x PID:%04x [dev: %p]", dev->getVid(), dev->getPid(), dev);
va009039 8:6463cd1964c0 19 HubDescriptor hubdesc;
va009039 8:6463cd1964c0 20 // get HUB descriptor
va009039 8:6463cd1964c0 21 int rc = controlRead(dev,
va009039 8:6463cd1964c0 22 USB_DEVICE_TO_HOST | USB_REQUEST_TYPE_CLASS,
va009039 8:6463cd1964c0 23 GET_DESCRIPTOR,
va009039 8:6463cd1964c0 24 0x29 << 8, 0, reinterpret_cast<uint8_t*>(&hubdesc),
va009039 8:6463cd1964c0 25 sizeof(HubDescriptor));
va009039 8:6463cd1964c0 26 USB_TEST_ASSERT(rc == USB_TYPE_OK);
va009039 8:6463cd1964c0 27 if (rc != USB_TYPE_OK) {
va009039 8:6463cd1964c0 28 return false;
va009039 8:6463cd1964c0 29 }
va009039 8:6463cd1964c0 30 USB_DBG_HEX((uint8_t*)&hubdesc, sizeof(hubdesc));
va009039 8:6463cd1964c0 31
va009039 8:6463cd1964c0 32 uint32_t status;
va009039 8:6463cd1964c0 33 rc = controlRead( dev,
va009039 8:6463cd1964c0 34 0xa0, 0, 0, 0, reinterpret_cast<uint8_t*>(&status), 4);
va009039 8:6463cd1964c0 35 USB_TEST_ASSERT(rc == USB_TYPE_OK);
va009039 8:6463cd1964c0 36 if (rc != USB_TYPE_OK) {
va009039 8:6463cd1964c0 37 return false;
va009039 8:6463cd1964c0 38 }
va009039 8:6463cd1964c0 39 USB_DBG("HUB STATUS: %08X\n", status);
va009039 8:6463cd1964c0 40
va009039 8:6463cd1964c0 41 for(int i = 1; i <= hubdesc.bNbrPorts; i++) {
va009039 8:6463cd1964c0 42 SetPortPower(dev, i); // power on
va009039 8:6463cd1964c0 43 wait_ms(hubdesc.bPwrOn2PwrGood*2);
va009039 8:6463cd1964c0 44 uint32_t status;
va009039 8:6463cd1964c0 45 GetPortStatus(dev, i, &status);
va009039 8:6463cd1964c0 46 USB_DBG("port: %d status: %08X\n", i, status);
va009039 8:6463cd1964c0 47 if (status & 0x010000) { // Connect Status Change, has changed
va009039 8:6463cd1964c0 48 USB_TEST_ASSERT(status & 0x000001);
va009039 8:6463cd1964c0 49 ClearPortFeature(dev, C_PORT_CONNECTION, i);
va009039 8:6463cd1964c0 50 int lowSpeed = 0;
va009039 8:6463cd1964c0 51 if (status & 0x0200) {
va009039 8:6463cd1964c0 52 lowSpeed = 1;
va009039 8:6463cd1964c0 53 }
va009039 8:6463cd1964c0 54 PortReset(dev, i);
va009039 10:40c7f6788902 55 if (!addDevice(dev, i, lowSpeed)) {
va009039 8:6463cd1964c0 56 ClearPortPower(dev, i); // power off
va009039 8:6463cd1964c0 57 }
va009039 8:6463cd1964c0 58 } else {
va009039 8:6463cd1964c0 59 ClearPortPower(dev, i); // power off
va009039 8:6463cd1964c0 60 }
va009039 8:6463cd1964c0 61 }
va009039 8:6463cd1964c0 62 return false;
va009039 8:6463cd1964c0 63 }
va009039 8:6463cd1964c0 64
va009039 8:6463cd1964c0 65
va009039 8:6463cd1964c0 66 int USBHost::SetPortPower(USBDeviceConnected* dev, int port)
va009039 8:6463cd1964c0 67 {
va009039 8:6463cd1964c0 68 return SetPortFeature(dev, PORT_POWER, port);
va009039 8:6463cd1964c0 69 }
va009039 8:6463cd1964c0 70
va009039 8:6463cd1964c0 71 int USBHost::ClearPortPower(USBDeviceConnected* dev, int port)
va009039 8:6463cd1964c0 72 {
va009039 8:6463cd1964c0 73 return ClearPortFeature(dev, PORT_POWER, port);
va009039 8:6463cd1964c0 74 }
va009039 8:6463cd1964c0 75
va009039 8:6463cd1964c0 76 int USBHost::SetPortFeature(USBDeviceConnected* dev, int feature, int index)
va009039 8:6463cd1964c0 77 {
va009039 8:6463cd1964c0 78 return controlWrite(dev, 0x23, SET_FEATURE,feature,index,0,0);
va009039 8:6463cd1964c0 79 }
va009039 8:6463cd1964c0 80
va009039 8:6463cd1964c0 81 int USBHost::ClearPortFeature(USBDeviceConnected* dev, int feature, int index)
va009039 8:6463cd1964c0 82 {
va009039 8:6463cd1964c0 83 return controlWrite(dev, 0x23, CLEAR_FEATURE,feature,index,0,0);
va009039 8:6463cd1964c0 84 }
va009039 8:6463cd1964c0 85
va009039 8:6463cd1964c0 86 int USBHost::SetPortReset(USBDeviceConnected* dev, int port)
va009039 8:6463cd1964c0 87 {
va009039 8:6463cd1964c0 88 return SetPortFeature(dev, PORT_RESET, port);
va009039 8:6463cd1964c0 89 }
va009039 8:6463cd1964c0 90
va009039 8:6463cd1964c0 91 int USBHost::GetPortStatus(USBDeviceConnected* dev, int port, uint32_t* status)
va009039 8:6463cd1964c0 92 {
va009039 8:6463cd1964c0 93 return controlRead(dev, 0xa3, GET_STATUS, 0, port, (uint8_t*)status, 4);
va009039 8:6463cd1964c0 94 }
va009039 8:6463cd1964c0 95
va009039 8:6463cd1964c0 96 int USBHost::PortReset(USBDeviceConnected* dev, int port)
va009039 8:6463cd1964c0 97 {
va009039 8:6463cd1964c0 98 USB_DBG("%p port=%d\n", this, port);
va009039 8:6463cd1964c0 99 USB_TEST_ASSERT(port >= 1);
va009039 8:6463cd1964c0 100 SetPortReset(dev, port);
va009039 8:6463cd1964c0 101 // wait reset
va009039 8:6463cd1964c0 102 for(int i = 0; i < 100; i++) {
va009039 8:6463cd1964c0 103 uint32_t status;
va009039 8:6463cd1964c0 104 GetPortStatus(dev, port, &status);
va009039 8:6463cd1964c0 105 USB_DBG("RESET port: %d status: %08X\n", port, status);
va009039 8:6463cd1964c0 106 if (status & 0x100000) { // Reset change , Reset complete
va009039 8:6463cd1964c0 107 return USB_TYPE_OK;
va009039 8:6463cd1964c0 108 }
va009039 8:6463cd1964c0 109 wait_ms(5);
va009039 8:6463cd1964c0 110 }
va009039 8:6463cd1964c0 111 return USB_TYPE_ERROR;
va009039 8:6463cd1964c0 112 }