USB host library, support isochronous,bulk,interrupt and control.
Dependents: BaseUsbHost_example BaseJpegDecode_example SimpleJpegDecode_example
Import programBaseUsbHost_example
BaseUsbHost example program
BaseUsbHostCtlEp.cpp@1:3b7bc4f87a61, 2012-12-05 (annotated)
- Committer:
- va009039
- Date:
- Wed Dec 05 13:23:06 2012 +0000
- Revision:
- 1:3b7bc4f87a61
- Parent:
- 0:b7d6879637a8
- Child:
- 3:ae77d63a1eda
add uvc class
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
va009039 | 1:3b7bc4f87a61 | 1 | // BaseUsbHostCtlEp.cpp 2012/12/5 |
va009039 | 0:b7d6879637a8 | 2 | #include "mbed.h" |
va009039 | 0:b7d6879637a8 | 3 | #include "rtos.h" |
va009039 | 0:b7d6879637a8 | 4 | #include "BaseUsbHost.h" |
va009039 | 0:b7d6879637a8 | 5 | #define DEBUG |
va009039 | 0:b7d6879637a8 | 6 | #include "BaseUsbHostDebug.h" |
va009039 | 0:b7d6879637a8 | 7 | #define TEST |
va009039 | 0:b7d6879637a8 | 8 | #include "BaseUsbHostTest.h" |
va009039 | 0:b7d6879637a8 | 9 | |
va009039 | 0:b7d6879637a8 | 10 | static uint8_t device_addr = 1; |
va009039 | 0:b7d6879637a8 | 11 | ControlEp::ControlEp(int lowSpeed):BaseEp(0, 0, 8, lowSpeed) |
va009039 | 0:b7d6879637a8 | 12 | { |
va009039 | 0:b7d6879637a8 | 13 | TEST_ASSERT(HCTD_QUEUE_SIZE >= 3); |
va009039 | 0:b7d6879637a8 | 14 | HCTD* td = new_HCTD(); |
va009039 | 0:b7d6879637a8 | 15 | TEST_ASSERT(td); |
va009039 | 0:b7d6879637a8 | 16 | m_pED->TailTd = td; |
va009039 | 0:b7d6879637a8 | 17 | m_pED->HeadTd = td; |
va009039 | 0:b7d6879637a8 | 18 | |
va009039 | 0:b7d6879637a8 | 19 | m_pED->Next = LPC_USB->HcControlHeadED; |
va009039 | 0:b7d6879637a8 | 20 | LPC_USB->HcControlHeadED = reinterpret_cast<uint32_t>(m_pED); |
va009039 | 0:b7d6879637a8 | 21 | |
va009039 | 0:b7d6879637a8 | 22 | DBG_OHCI(LPC_USB->HcControlHeadED); |
va009039 | 0:b7d6879637a8 | 23 | DBG_ED(m_pED); |
va009039 | 0:b7d6879637a8 | 24 | |
va009039 | 0:b7d6879637a8 | 25 | int r = open(device_addr); |
va009039 | 0:b7d6879637a8 | 26 | if (r == USB_OK) { |
va009039 | 0:b7d6879637a8 | 27 | device_addr++; |
va009039 | 0:b7d6879637a8 | 28 | } |
va009039 | 0:b7d6879637a8 | 29 | } |
va009039 | 0:b7d6879637a8 | 30 | |
va009039 | 0:b7d6879637a8 | 31 | int ControlEp::SetAddress(int addr) |
va009039 | 0:b7d6879637a8 | 32 | { |
va009039 | 0:b7d6879637a8 | 33 | return controlSend(0x00, 5, addr); |
va009039 | 0:b7d6879637a8 | 34 | } |
va009039 | 0:b7d6879637a8 | 35 | |
va009039 | 0:b7d6879637a8 | 36 | int ControlEp::GetDescriptor(int descType, int descIndex, uint8_t* data, int length) |
va009039 | 0:b7d6879637a8 | 37 | { |
va009039 | 0:b7d6879637a8 | 38 | return controlReceive(0x80, 6, (descType<<8)|descIndex, 0, data, length); |
va009039 | 0:b7d6879637a8 | 39 | } |
va009039 | 0:b7d6879637a8 | 40 | |
va009039 | 0:b7d6879637a8 | 41 | int ControlEp::SetConfiguration(int config) |
va009039 | 0:b7d6879637a8 | 42 | { |
va009039 | 0:b7d6879637a8 | 43 | return controlSend(0x00, 9, config); |
va009039 | 0:b7d6879637a8 | 44 | } |
va009039 | 0:b7d6879637a8 | 45 | |
va009039 | 0:b7d6879637a8 | 46 | int ControlEp::GetConfiguration(int *config) |
va009039 | 0:b7d6879637a8 | 47 | { |
va009039 | 0:b7d6879637a8 | 48 | uint8_t buf[1]; |
va009039 | 0:b7d6879637a8 | 49 | int rc = controlReceive(0x80, 8, 0, 0, buf, 1); |
va009039 | 0:b7d6879637a8 | 50 | *config = buf[0]; |
va009039 | 0:b7d6879637a8 | 51 | return rc; |
va009039 | 0:b7d6879637a8 | 52 | } |
va009039 | 0:b7d6879637a8 | 53 | |
va009039 | 0:b7d6879637a8 | 54 | int ControlEp::SetInterfaceAlternate(int interface, int alternate) |
va009039 | 0:b7d6879637a8 | 55 | { |
va009039 | 0:b7d6879637a8 | 56 | int rc = controlSend(USB_HOST_TO_DEVICE | USB_RECIPIENT_INTERFACE, |
va009039 | 0:b7d6879637a8 | 57 | SET_INTERFACE, alternate, interface, NULL, 0); |
va009039 | 0:b7d6879637a8 | 58 | return rc; |
va009039 | 0:b7d6879637a8 | 59 | } |
va009039 | 0:b7d6879637a8 | 60 | |
va009039 | 0:b7d6879637a8 | 61 | int ControlEp::GetInterface(int interface, int *alternate) |
va009039 | 0:b7d6879637a8 | 62 | { |
va009039 | 0:b7d6879637a8 | 63 | uint8_t buf[1]; |
va009039 | 0:b7d6879637a8 | 64 | int rc = controlReceive(0x81, 10, 0, interface, buf, 1); |
va009039 | 0:b7d6879637a8 | 65 | *alternate = buf[0]; |
va009039 | 0:b7d6879637a8 | 66 | return rc; |
va009039 | 0:b7d6879637a8 | 67 | } |
va009039 | 0:b7d6879637a8 | 68 | |
va009039 | 0:b7d6879637a8 | 69 | int ControlEp::open(int addr) |
va009039 | 0:b7d6879637a8 | 70 | { |
va009039 | 0:b7d6879637a8 | 71 | TEST_ASSERT(addr >= 1 && addr <= 127); |
va009039 | 0:b7d6879637a8 | 72 | uint8_t buf[8]; |
va009039 | 0:b7d6879637a8 | 73 | int r = GetDescriptor(1, 0, buf, 8); |
va009039 | 0:b7d6879637a8 | 74 | TEST_ASSERT(r == USB_OK); |
va009039 | 0:b7d6879637a8 | 75 | if (r != USB_OK) { |
va009039 | 0:b7d6879637a8 | 76 | return r; |
va009039 | 0:b7d6879637a8 | 77 | } |
va009039 | 0:b7d6879637a8 | 78 | TEST_ASSERT(buf[0] == 0x12); |
va009039 | 0:b7d6879637a8 | 79 | TEST_ASSERT(buf[1] == 0x01); |
va009039 | 0:b7d6879637a8 | 80 | TEST_ASSERT(buf[7] >= 8); |
va009039 | 0:b7d6879637a8 | 81 | update_MaxPacketSize(buf[7]); |
va009039 | 0:b7d6879637a8 | 82 | r = SetAddress(addr); |
va009039 | 0:b7d6879637a8 | 83 | TEST_ASSERT(r == USB_OK); |
va009039 | 0:b7d6879637a8 | 84 | if (r != USB_OK) { |
va009039 | 0:b7d6879637a8 | 85 | return r; |
va009039 | 0:b7d6879637a8 | 86 | } |
va009039 | 0:b7d6879637a8 | 87 | wait_ms(2); |
va009039 | 0:b7d6879637a8 | 88 | update_FunctionAddress(addr); |
va009039 | 0:b7d6879637a8 | 89 | return USB_OK; |
va009039 | 0:b7d6879637a8 | 90 | } |
va009039 | 0:b7d6879637a8 | 91 | |
va009039 | 0:b7d6879637a8 | 92 | int ControlEp::controlReceive(uint8_t bmRequestType, uint8_t bRequest, uint16_t wValue, uint16_t wIndex, |
va009039 | 0:b7d6879637a8 | 93 | uint8_t* data, int length) { |
va009039 | 0:b7d6879637a8 | 94 | DBG("Type: %02X Request: %02X Value: %04X Index: %04X %p %d\n", bmRequestType, bRequest, wValue, wIndex, data, length); |
va009039 | 0:b7d6879637a8 | 95 | HCTD* setup_td = m_pED->TailTd; |
va009039 | 0:b7d6879637a8 | 96 | setup(setup_td, bmRequestType, bRequest, wValue, wIndex, length); |
va009039 | 0:b7d6879637a8 | 97 | setup_td->Control |= TD_DI; |
va009039 | 0:b7d6879637a8 | 98 | |
va009039 | 0:b7d6879637a8 | 99 | HCTD* data_td = new_HCTD(length); |
va009039 | 0:b7d6879637a8 | 100 | TEST_ASSERT(data_td); |
va009039 | 0:b7d6879637a8 | 101 | data_td->Control |= TD_TOGGLE_1|TD_IN|TD_DI; |
va009039 | 0:b7d6879637a8 | 102 | //data_td->Control |= TD_IN|TD_DI; |
va009039 | 0:b7d6879637a8 | 103 | setup_td->Next = reinterpret_cast<uint32_t>(data_td); |
va009039 | 0:b7d6879637a8 | 104 | |
va009039 | 0:b7d6879637a8 | 105 | HCTD* status_td = new_HCTD(); |
va009039 | 0:b7d6879637a8 | 106 | TEST_ASSERT(status_td); |
va009039 | 0:b7d6879637a8 | 107 | status_td->Control |= TD_TOGGLE_1|TD_OUT; // OUT(DATA1) |
va009039 | 0:b7d6879637a8 | 108 | data_td->Next = reinterpret_cast<uint32_t>(status_td); |
va009039 | 0:b7d6879637a8 | 109 | |
va009039 | 0:b7d6879637a8 | 110 | HCTD* blank_td = new_HCTD(); |
va009039 | 0:b7d6879637a8 | 111 | TEST_ASSERT(blank_td); |
va009039 | 0:b7d6879637a8 | 112 | status_td->Next = reinterpret_cast<uint32_t>(blank_td); |
va009039 | 0:b7d6879637a8 | 113 | m_pED->TailTd = blank_td; |
va009039 | 0:b7d6879637a8 | 114 | |
va009039 | 0:b7d6879637a8 | 115 | LPC_USB->HcCommandStatus |= OR_CMD_STATUS_CLF; |
va009039 | 0:b7d6879637a8 | 116 | LPC_USB->HcControl |= OR_CONTROL_CLE; |
va009039 | 0:b7d6879637a8 | 117 | |
va009039 | 0:b7d6879637a8 | 118 | int r = wait_queue_HCTD(setup_td, 100); // wait setup stage |
va009039 | 0:b7d6879637a8 | 119 | TEST_ASSERT(r == USB_OK); |
va009039 | 0:b7d6879637a8 | 120 | HCTD* td = get_queue_HCTD(100); |
va009039 | 0:b7d6879637a8 | 121 | if (td == data_td) { |
va009039 | 0:b7d6879637a8 | 122 | memcpy(data, const_cast<uint8_t*>(td->buf), length); |
va009039 | 0:b7d6879637a8 | 123 | delete_HCTD(td); |
va009039 | 0:b7d6879637a8 | 124 | } else { |
va009039 | 0:b7d6879637a8 | 125 | DBG_TD(td); |
va009039 | 0:b7d6879637a8 | 126 | TEST_ASSERT(td == data_td); |
va009039 | 0:b7d6879637a8 | 127 | return USB_ERROR; |
va009039 | 0:b7d6879637a8 | 128 | } |
va009039 | 0:b7d6879637a8 | 129 | r = wait_queue_HCTD(status_td, 100); // wait status stage |
va009039 | 0:b7d6879637a8 | 130 | TEST_ASSERT(r == USB_OK); |
va009039 | 0:b7d6879637a8 | 131 | return r; |
va009039 | 0:b7d6879637a8 | 132 | } |
va009039 | 0:b7d6879637a8 | 133 | |
va009039 | 0:b7d6879637a8 | 134 | int ControlEp::controlSend(uint8_t bmRequestType, uint8_t bRequest, uint16_t wValue, uint16_t wIndex, |
va009039 | 0:b7d6879637a8 | 135 | const uint8_t* data, int length) { |
va009039 | 0:b7d6879637a8 | 136 | DBG("Type: %02X Request: %02X Value: %04X Index: %04X %p %d\n", bmRequestType, bRequest, wValue, wIndex, data, length); |
va009039 | 0:b7d6879637a8 | 137 | HCTD* setup_td = m_pED->TailTd; |
va009039 | 0:b7d6879637a8 | 138 | setup(setup_td, bmRequestType, bRequest, wValue, wIndex, length); |
va009039 | 0:b7d6879637a8 | 139 | |
va009039 | 0:b7d6879637a8 | 140 | HCTD* status_td = new_HCTD(); |
va009039 | 0:b7d6879637a8 | 141 | TEST_ASSERT(status_td); |
va009039 | 0:b7d6879637a8 | 142 | HCTD* blank_td = new_HCTD(); |
va009039 | 0:b7d6879637a8 | 143 | TEST_ASSERT(blank_td); |
va009039 | 0:b7d6879637a8 | 144 | setup_td->Control |= TD_DI; |
va009039 | 0:b7d6879637a8 | 145 | status_td->Control |= TD_TOGGLE_1|TD_IN; // IN(DATA1) |
va009039 | 0:b7d6879637a8 | 146 | setup_td->Next = reinterpret_cast<uint32_t>(status_td); |
va009039 | 0:b7d6879637a8 | 147 | status_td->Next = reinterpret_cast<uint32_t>(blank_td); |
va009039 | 0:b7d6879637a8 | 148 | |
va009039 | 0:b7d6879637a8 | 149 | if (length != 0) { |
va009039 | 0:b7d6879637a8 | 150 | HCTD* data_td = new_HCTD(length); |
va009039 | 0:b7d6879637a8 | 151 | TEST_ASSERT(data_td); |
va009039 | 0:b7d6879637a8 | 152 | data_td->Control |= TD_TOGGLE_1|TD_OUT|TD_DI; |
va009039 | 0:b7d6879637a8 | 153 | memcpy(const_cast<uint8_t*>(data_td->buf), data, length); |
va009039 | 0:b7d6879637a8 | 154 | setup_td->Next = reinterpret_cast<uint32_t>(data_td); |
va009039 | 0:b7d6879637a8 | 155 | data_td->Next = reinterpret_cast<uint32_t>(status_td); |
va009039 | 0:b7d6879637a8 | 156 | } |
va009039 | 0:b7d6879637a8 | 157 | m_pED->TailTd = blank_td; |
va009039 | 0:b7d6879637a8 | 158 | DBG_ED(m_pED); |
va009039 | 0:b7d6879637a8 | 159 | |
va009039 | 0:b7d6879637a8 | 160 | LPC_USB->HcCommandStatus |= OR_CMD_STATUS_CLF; |
va009039 | 0:b7d6879637a8 | 161 | LPC_USB->HcControl |= OR_CONTROL_CLE; |
va009039 | 0:b7d6879637a8 | 162 | |
va009039 | 0:b7d6879637a8 | 163 | int r = wait_queue_HCTD(status_td, 200); // wait status stage |
va009039 | 0:b7d6879637a8 | 164 | TEST_ASSERT(r == USB_OK); |
va009039 | 0:b7d6879637a8 | 165 | return r; |
va009039 | 0:b7d6879637a8 | 166 | } |
va009039 | 0:b7d6879637a8 | 167 | |
va009039 | 0:b7d6879637a8 | 168 | void ControlEp::setup(HCTD* td, uint8_t bmRequestType, uint8_t bRequest, uint16_t wValue, |
va009039 | 0:b7d6879637a8 | 169 | uint16_t wIndex, uint16_t wLength) |
va009039 | 0:b7d6879637a8 | 170 | { |
va009039 | 0:b7d6879637a8 | 171 | td->setup[0] = bmRequestType; |
va009039 | 0:b7d6879637a8 | 172 | td->setup[1] = bRequest; |
va009039 | 0:b7d6879637a8 | 173 | td->setup[2] = wValue; |
va009039 | 0:b7d6879637a8 | 174 | td->setup[3] = wValue>>8; |
va009039 | 0:b7d6879637a8 | 175 | td->setup[4] = wIndex; |
va009039 | 0:b7d6879637a8 | 176 | td->setup[5] = wIndex>>8; |
va009039 | 0:b7d6879637a8 | 177 | td->setup[6] = wLength; |
va009039 | 0:b7d6879637a8 | 178 | td->setup[7] = wLength>>8; |
va009039 | 0:b7d6879637a8 | 179 | td->Control |= TD_TOGGLE_0|TD_SETUP; |
va009039 | 0:b7d6879637a8 | 180 | td->CurrBufPtr = td->setup; |
va009039 | 0:b7d6879637a8 | 181 | td->BufEnd = td->setup+8-1; |
va009039 | 0:b7d6879637a8 | 182 | } |
va009039 | 0:b7d6879637a8 | 183 |