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@25:7d6d9fc471bf, 2016-06-17 (annotated)

Committer:
DieterGraef
Date:
Fri Jun 17 09:00:35 2016 +0000
Revision:
25:7d6d9fc471bf
Parent:
24:5396b6a93262 
USB Host now works with both Interfaces even in parallel. Some changes in the USB MSD driver to make it operable

Who changed what in which revision?

UserRevisionLine numberNew contents of line
va009039 12:b91fdea8c0a7 1 #include "USBHost.h"
va009039 12:b91fdea8c0a7 2
va009039 12:b91fdea8c0a7 3 #define PORT_CONNECTION 0
va009039 12:b91fdea8c0a7 4 #define PORT_ENABLE 1
va009039 12:b91fdea8c0a7 5 #define PORT_SUSPEND 2
va009039 12:b91fdea8c0a7 6 #define PORT_OVER_CURRENT 3
va009039 12:b91fdea8c0a7 7 #define PORT_RESET 4
va009039 12:b91fdea8c0a7 8 #define PORT_POWER 8
va009039 12:b91fdea8c0a7 9 #define PORT_LOW_SPEED 9
va009039 12:b91fdea8c0a7 10
va009039 12:b91fdea8c0a7 11 #define C_PORT_CONNECTION 16
va009039 12:b91fdea8c0a7 12 #define C_PORT_ENABLE 17
va009039 12:b91fdea8c0a7 13 #define C_PORT_SUSPEND 18
va009039 12:b91fdea8c0a7 14 #define C_PORT_OVER_CURRENT 19
va009039 12:b91fdea8c0a7 15 #define C_PORT_RESET 20
va009039 12:b91fdea8c0a7 16
va009039 12:b91fdea8c0a7 17 bool USBHost::Hub(USBDeviceConnected* dev) {
va009039 12:b91fdea8c0a7 18 USB_INFO("New HUB: VID:%04x PID:%04x [dev: %p]", dev->getVid(), dev->getPid(), dev);
va009039 12:b91fdea8c0a7 19 HubDescriptor hubdesc;
va009039 12:b91fdea8c0a7 20 // get HUB descriptor
DieterGraef 24:5396b6a93262 21 int rc = controlRead(dev,
va009039 12:b91fdea8c0a7 22 USB_DEVICE_TO_HOST | USB_REQUEST_TYPE_CLASS,
va009039 12:b91fdea8c0a7 23 GET_DESCRIPTOR,
DieterGraef 24:5396b6a93262 24 0x29 << 8, 0, reinterpret_cast<uint8_t*>(&hubdesc),
va009039 12:b91fdea8c0a7 25 sizeof(HubDescriptor));
va009039 12:b91fdea8c0a7 26 USB_TEST_ASSERT(rc == USB_TYPE_OK);
va009039 12:b91fdea8c0a7 27 if (rc != USB_TYPE_OK) {
va009039 12:b91fdea8c0a7 28 return false;
va009039 12:b91fdea8c0a7 29 }
va009039 12:b91fdea8c0a7 30 USB_DBG_HEX((uint8_t*)&hubdesc, sizeof(hubdesc));
va009039 12:b91fdea8c0a7 31
va009039 12:b91fdea8c0a7 32 uint32_t status;
va009039 12:b91fdea8c0a7 33 rc = controlRead( dev,
va009039 12:b91fdea8c0a7 34 0xa0, 0, 0, 0, reinterpret_cast<uint8_t*>(&status), 4);
va009039 12:b91fdea8c0a7 35 USB_TEST_ASSERT(rc == USB_TYPE_OK);
va009039 12:b91fdea8c0a7 36 if (rc != USB_TYPE_OK) {
va009039 12:b91fdea8c0a7 37 return false;
va009039 12:b91fdea8c0a7 38 }
va009039 12:b91fdea8c0a7 39 USB_DBG("HUB STATUS: %08X\n", status);
va009039 12:b91fdea8c0a7 40
va009039 12:b91fdea8c0a7 41 for(int i = 1; i <= hubdesc.bNbrPorts; i++) {
va009039 12:b91fdea8c0a7 42 SetPortPower(dev, i); // power on
va009039 12:b91fdea8c0a7 43 wait_ms(hubdesc.bPwrOn2PwrGood*2);
va009039 12:b91fdea8c0a7 44 uint32_t status;
va009039 12:b91fdea8c0a7 45 GetPortStatus(dev, i, &status);
va009039 12:b91fdea8c0a7 46 USB_DBG("port: %d status: %08X\n", i, status);
va009039 12:b91fdea8c0a7 47 if (status & 0x010000) { // Connect Status Change, has changed
va009039 12:b91fdea8c0a7 48 USB_TEST_ASSERT(status & 0x000001);
va009039 12:b91fdea8c0a7 49 ClearPortFeature(dev, C_PORT_CONNECTION, i);
va009039 12:b91fdea8c0a7 50 int lowSpeed = 0;
va009039 12:b91fdea8c0a7 51 if (status & 0x0200) {
va009039 12:b91fdea8c0a7 52 lowSpeed = 1;
va009039 12:b91fdea8c0a7 53 }
va009039 12:b91fdea8c0a7 54 PortReset(dev, i);
va009039 12:b91fdea8c0a7 55 if (!addDevice(dev, i, lowSpeed)) {
va009039 12:b91fdea8c0a7 56 ClearPortPower(dev, i); // power off
va009039 12:b91fdea8c0a7 57 }
va009039 12:b91fdea8c0a7 58 } else {
va009039 12:b91fdea8c0a7 59 ClearPortPower(dev, i); // power off
va009039 12:b91fdea8c0a7 60 }
va009039 12:b91fdea8c0a7 61 }
va009039 12:b91fdea8c0a7 62 return false;
va009039 12:b91fdea8c0a7 63 }
va009039 12:b91fdea8c0a7 64
va009039 12:b91fdea8c0a7 65
va009039 12:b91fdea8c0a7 66 int USBHost::SetPortPower(USBDeviceConnected* dev, int port)
va009039 12:b91fdea8c0a7 67 {
va009039 12:b91fdea8c0a7 68 return SetPortFeature(dev, PORT_POWER, port);
va009039 12:b91fdea8c0a7 69 }
va009039 12:b91fdea8c0a7 70
va009039 12:b91fdea8c0a7 71 int USBHost::ClearPortPower(USBDeviceConnected* dev, int port)
va009039 12:b91fdea8c0a7 72 {
va009039 12:b91fdea8c0a7 73 return ClearPortFeature(dev, PORT_POWER, port);
va009039 12:b91fdea8c0a7 74 }
va009039 12:b91fdea8c0a7 75
va009039 12:b91fdea8c0a7 76 int USBHost::SetPortFeature(USBDeviceConnected* dev, int feature, int index)
va009039 12:b91fdea8c0a7 77 {
va009039 12:b91fdea8c0a7 78 return controlWrite(dev, 0x23, SET_FEATURE,feature,index,0,0);
va009039 12:b91fdea8c0a7 79 }
va009039 12:b91fdea8c0a7 80
va009039 12:b91fdea8c0a7 81 int USBHost::ClearPortFeature(USBDeviceConnected* dev, int feature, int index)
va009039 12:b91fdea8c0a7 82 {
va009039 12:b91fdea8c0a7 83 return controlWrite(dev, 0x23, CLEAR_FEATURE,feature,index,0,0);
va009039 12:b91fdea8c0a7 84 }
va009039 12:b91fdea8c0a7 85
va009039 12:b91fdea8c0a7 86 int USBHost::SetPortReset(USBDeviceConnected* dev, int port)
va009039 12:b91fdea8c0a7 87 {
va009039 12:b91fdea8c0a7 88 return SetPortFeature(dev, PORT_RESET, port);
va009039 12:b91fdea8c0a7 89 }
va009039 12:b91fdea8c0a7 90
va009039 12:b91fdea8c0a7 91 int USBHost::GetPortStatus(USBDeviceConnected* dev, int port, uint32_t* status)
va009039 12:b91fdea8c0a7 92 {
va009039 12:b91fdea8c0a7 93 return controlRead(dev, 0xa3, GET_STATUS, 0, port, (uint8_t*)status, 4);
va009039 12:b91fdea8c0a7 94 }
va009039 12:b91fdea8c0a7 95
va009039 12:b91fdea8c0a7 96 int USBHost::PortReset(USBDeviceConnected* dev, int port)
va009039 12:b91fdea8c0a7 97 {
va009039 12:b91fdea8c0a7 98 USB_DBG("%p port=%d\n", this, port);
va009039 12:b91fdea8c0a7 99 USB_TEST_ASSERT(port >= 1);
va009039 12:b91fdea8c0a7 100 SetPortReset(dev, port);
va009039 12:b91fdea8c0a7 101 // wait reset
va009039 12:b91fdea8c0a7 102 for(int i = 0; i < 100; i++) {
DieterGraef 24:5396b6a93262 103 uint32_t status;
va009039 12:b91fdea8c0a7 104 GetPortStatus(dev, port, &status);
va009039 12:b91fdea8c0a7 105 USB_DBG("RESET port: %d status: %08X\n", port, status);
va009039 12:b91fdea8c0a7 106 if (status & 0x100000) { // Reset change , Reset complete
va009039 12:b91fdea8c0a7 107 return USB_TYPE_OK;
va009039 12:b91fdea8c0a7 108 }
va009039 12:b91fdea8c0a7 109 wait_ms(5);
va009039 12:b91fdea8c0a7 110 }
va009039 12:b91fdea8c0a7 111 return USB_TYPE_ERROR;
va009039 12:b91fdea8c0a7 112 }