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
USBHost/USBHostHub.cpp@24:5396b6a93262, 2016-06-13 (annotated)
- Committer:
- DieterGraef
- Date:
- Mon Jun 13 17:21:07 2016 +0000
- Revision:
- 24:5396b6a93262
- Parent:
- 12:b91fdea8c0a7
USB Host for STM32F746 DISCO Board. At the moment you can only use either the High Speed Port or the Fast Speed Port.
Who changed what in which revision?
User | Revision | Line number | New 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 | } |