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@9:7f9f64cf5ded, 2014-02-03 (annotated)

Committer:
va009039
Date:
Mon Feb 03 13:00:16 2014 +0000
Revision:
9:7f9f64cf5ded
Parent:
8:6463cd1964c0
Child:
10:40c7f6788902
add interrupt write transfer.

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