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-rw-r--r--core/usb/usb.c470
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diff --git a/core/usb/usb.c b/core/usb/usb.c
deleted file mode 100644
index bbea77d..0000000
--- a/core/usb/usb.c
+++ /dev/null
@@ -1,470 +0,0 @@
-/* *****************************************************************************
- * The MIT License
- *
- * Copyright (c) 2010 LeafLabs LLC.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
- * ****************************************************************************/
-
-/**
- * @file usb.c
- *
- * @brief usb-specific hardware setup, NVIC, clocks, and usb activities
- * in the pre-attached state. includes some of the lower level callbacks
- * needed by the usb library, like suspend,resume,init,etc
- */
-
-#include "usb.h"
-#include "libmaple.h"
-#include "usb_lib.h"
-#include "gpio.h"
-#include "usb_hardware.h"
-
-#include "usb_config.h"
-#include "usb_callbacks.h"
-#include "usb_lib.h"
-
-/* persistent usb structs */
-
-volatile uint32 bDeviceState = UNCONNECTED;
-volatile uint16_t wIstr = 0;
-volatile bIntPackSOF = 0;
-
-DEVICE Device_Table =
- {
- NUM_ENDPTS,
- 1
- };
-
-DEVICE_PROP Device_Property =
- {
- usbInit,
- usbReset,
- usbStatusIn,
- usbStatusOut,
- usbDataSetup,
- usbNoDataSetup,
- usbGetInterfaceSetting,
- usbGetDeviceDescriptor,
- usbGetConfigDescriptor,
- usbGetStringDescriptor,
- NOP_Process,
- 0,
- bMaxPacketSize
- };
-
-USER_STANDARD_REQUESTS User_Standard_Requests =
- {
- NOP_Process,
- usbSetConfiguration,
- NOP_Process,
- NOP_Process,
- NOP_Process,
- NOP_Process,
- NOP_Process,
- NOP_Process,
- usbSetDeviceAddress
- };
-
-void (*pEpInt_IN[7])(void) =
-{
- vcomDataTxCb,
- vcomManagementCb,
- NOP_Process,
- NOP_Process,
- NOP_Process,
- NOP_Process,
- NOP_Process,
-};
-
-void (*pEpInt_OUT[7])(void) =
-{
- NOP_Process,
- NOP_Process,
- vcomDataRxCb,
- NOP_Process,
- NOP_Process,
- NOP_Process,
- NOP_Process,
-};
-
-struct
-{
- volatile RESUME_STATE eState;
- volatile uint8 bESOFcnt;
-} ResumeS;
-
-void setupUSB (void) {
- gpio_set_mode(USB_DISC_BANK,
- USB_DISC_PIN,
- GPIO_MODE_OUTPUT_PP);
-
- /* setup the apb1 clock for USB */
- pRCC->APB1ENR |= 0x00800000;
-
- /* initialize the usb application */
- gpio_write_bit(USB_DISC_BANK,USB_DISC_PIN,0); /* present ourselves to the host */
- USB_Init(); /* low level init routine provided by st lib */
-
-}
-
-void usbSuspend(void) {
- u16 wCNTR;
- wCNTR = _GetCNTR();
- wCNTR |= CNTR_FSUSP | CNTR_LPMODE;
- _SetCNTR(wCNTR);
-
- /* run any power reduction handlers */
- bDeviceState = SUSPENDED;
-}
-
-void usbResumeInit(void) {
- u16 wCNTR;
-
- /* restart any clocks that had been stopped */
-
- wCNTR = _GetCNTR();
- wCNTR &= (~CNTR_LPMODE);
- _SetCNTR(wCNTR);
-
- /* undo power reduction handlers here */
- _SetCNTR(ISR_MSK);
-
-}
-
-void usbResume(RESUME_STATE eResumeSetVal) {
- u16 wCNTR;
-
- if (eResumeSetVal != RESUME_ESOF)
- ResumeS.eState = eResumeSetVal;
-
- switch (ResumeS.eState)
- {
- case RESUME_EXTERNAL:
- usbResumeInit();
- ResumeS.eState = RESUME_OFF;
- break;
- case RESUME_INTERNAL:
- usbResumeInit();
- ResumeS.eState = RESUME_START;
- break;
- case RESUME_LATER:
- ResumeS.bESOFcnt = 2;
- ResumeS.eState = RESUME_WAIT;
- break;
- case RESUME_WAIT:
- ResumeS.bESOFcnt--;
- if (ResumeS.bESOFcnt == 0)
- ResumeS.eState = RESUME_START;
- break;
- case RESUME_START:
- wCNTR = _GetCNTR();
- wCNTR |= CNTR_RESUME;
- _SetCNTR(wCNTR);
- ResumeS.eState = RESUME_ON;
- ResumeS.bESOFcnt = 10;
- break;
- case RESUME_ON:
- ResumeS.bESOFcnt--;
- if (ResumeS.bESOFcnt == 0)
- {
- wCNTR = _GetCNTR();
- wCNTR &= (~CNTR_RESUME);
- _SetCNTR(wCNTR);
- ResumeS.eState = RESUME_OFF;
- }
- break;
- case RESUME_OFF:
- case RESUME_ESOF:
- default:
- ResumeS.eState = RESUME_OFF;
- break;
- }
-}
-
-RESULT usbPowerOn(void) {
- u16 wRegVal;
-
- wRegVal = CNTR_FRES;
- _SetCNTR(wRegVal);
-
- wInterrupt_Mask = 0;
- _SetCNTR(wInterrupt_Mask);
- _SetISTR(0);
- wInterrupt_Mask = CNTR_RESETM | CNTR_SUSPM | CNTR_WKUPM; /* the bare minimum */
- _SetCNTR(wInterrupt_Mask);
-
- return USB_SUCCESS;
-}
-
-RESULT usbPowerOff(void) {
- _SetCNTR(CNTR_FRES);
- _SetISTR(0);
- _SetCNTR(CNTR_FRES + CNTR_PDWN);
-
- /* note that all weve done here is powerdown the
- usb peripheral. we have no disabled the clocks,
- pulled the usb_disc pin back up, or reset the
- application state machines */
-
- return USB_SUCCESS;
-}
-
-void usbEnbISR(void) {
- NVIC_InitTypeDef NVIC_InitStructure;
-
-
- NVIC_InitStructure.NVIC_IRQChannel = USB_LP_IRQ;
- NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
- NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
- NVIC_InitStructure.NVIC_IRQChannelCmd = TRUE;
- nvicInit(&NVIC_InitStructure);
-}
-
-void usbDsbISR(void) {
- NVIC_InitTypeDef NVIC_InitStructure;
- NVIC_InitStructure.NVIC_IRQChannel = USB_LP_IRQ;
- NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
- NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
- NVIC_InitStructure.NVIC_IRQChannelCmd = FALSE;
- nvicInit(&NVIC_InitStructure);
-}
-
-/* overloaded ISR routine, this is the main usb ISR */
-void usb_lpIRQHandler(void) {
-wIstr = _GetISTR();
-
-/* go nuts with the preproc switches since this is an ISTR and must be FAST */
-#if (ISR_MSK & ISTR_RESET)
-if (wIstr & ISTR_RESET & wInterrupt_Mask)
- {
- _SetISTR((u16)CLR_RESET);
- Device_Property.Reset();
- }
-#endif
-
-
-#if (ISR_MSK & ISTR_DOVR)
-if (wIstr & ISTR_DOVR & wInterrupt_Mask)
- {
- _SetISTR((u16)CLR_DOVR);
- }
-#endif
-
-
-#if (ISR_MSK & ISTR_ERR)
-if (wIstr & ISTR_ERR & wInterrupt_Mask)
- {
- _SetISTR((u16)CLR_ERR);
- }
-#endif
-
-
-#if (ISR_MSK & ISTR_WKUP)
-if (wIstr & ISTR_WKUP & wInterrupt_Mask)
- {
- _SetISTR((u16)CLR_WKUP);
- usbResume(RESUME_EXTERNAL);
- }
-#endif
-
-/*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*/
-#if (ISR_MSK & ISTR_SUSP)
-if (wIstr & ISTR_SUSP & wInterrupt_Mask)
- {
-
- /* check if SUSPEND is possible */
- if (F_SUSPEND_ENABLED)
- {
- usbSuspend();
- }
- else
- {
- /* if not possible then resume after xx ms */
- usbResume(RESUME_LATER);
- }
- /* clear of the ISTR bit must be done after setting of CNTR_FSUSP */
- _SetISTR((u16)CLR_SUSP);
- }
-#endif
-
-
-#if (ISR_MSK & ISTR_SOF)
-if (wIstr & ISTR_SOF & wInterrupt_Mask)
- {
- _SetISTR((u16)CLR_SOF);
- bIntPackSOF++;
- }
-#endif
-
-
-#if (ISR_MSK & ISTR_ESOF)
-if (wIstr & ISTR_ESOF & wInterrupt_Mask)
- {
- _SetISTR((u16)CLR_ESOF);
- /* resume handling timing is made with ESOFs */
- usbResume(RESUME_ESOF); /* request without change of the machine state */
- }
-#endif
-
-/*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*/
-#if (ISR_MSK & ISTR_CTR)
-if (wIstr & ISTR_CTR & wInterrupt_Mask)
- {
- /* servicing of the endpoint correct transfer interrupt */
- /* clear of the CTR flag into the sub */
- CTR_LP(); /* low priority ISR defined in the usb core lib */
- }
-#endif
-
-/* if we are about to reset from the DTR signal, then dont return
- to user, instead return from the ISR into a wait slide */
- if (reset_state == RESET_NOW) {
- reset_state = START;
- unsigned int target = (unsigned int)usbWaitReset | 0x1;
-
- asm volatile("mov r0, %[stack_top] \n\t" // Reset the stack
- "mov sp, r0 \n\t"
- "mov r0, #1 \n\t"
- "mov r1, %[target_addr] \n\t"
- "mov r2, %[cpsr] \n\t"
- "push {r2} \n\t" // Fake xPSR
- "push {r1} \n\t" // Target address for PC
- "push {r0} \n\t" // Fake LR
- "push {r0} \n\t" // Fake R12
- "push {r0} \n\t" // Fake R3
- "push {r0} \n\t" // Fake R2
- "push {r0} \n\t" // Fake R1
- "push {r0} \n\t" // Fake R0
- "mov lr, %[exc_return] \n\t"
- "bx lr"
- :
- : [stack_top] "r" (STACK_TOP),
- [target_addr] "r" (target),
- [exc_return] "r" (EXC_RETURN),
- [cpsr] "r" (DEFAULT_CPSR)
- : "r0", "r1", "r2");
- // Should never get here.
- }
-}
-
-void usbWaitReset(void) {
- static count=1000000;
- while (count-- >0);
- systemHardReset();
-}
-
-/* copies data out of sendBuf into the packet memory for
- usb, but waits until any previous usb transmissions have
- completed before doing this. It returns without waiting
- for its data to be sent. most efficient when 64 bytes are copied
- at a time. users responsible for not overflowing sendbuf
- with len! if > 64 bytes are being sent, then the function
- will block at every 64 byte packet
-*/
-int16 usbSendBytes(uint8* sendBuf, uint16 len) {
-/* while (countTx != 0) { */
-/* if (reset_state == NDTR_NRTS) { */
-/* return 0; */
-/* } */
-/* }/\* wait for pipe to be clear *\/ */
-
- if (reset_state == NDTR_NRTS) {
- return -1; /* indicates to caller to stop trying, were not connected */
- }
-
- /* ideally we should wait here, but it gets stuck
- for some reason. countTx wont decrement when
- theres no host side port reading the data, this is
- known, but even if we add the check for NDTR_NRTS it
- still gets stuck...*/
- if (countTx != 0) {
- return 0; /* indicated to caller to keep trying, were just busy */
- }
-
- uint16 sent = len;
-
- while (len > VCOM_TX_EPSIZE) {
- countTx = VCOM_TX_EPSIZE;
-
- UserToPMABufferCopy(sendBuf,VCOM_TX_ADDR,VCOM_TX_EPSIZE);
- _SetEPTxCount(VCOM_TX_ENDP,VCOM_TX_EPSIZE);
- _SetEPTxValid(VCOM_TX_ENDP);
-
- while(countTx != 0);
- len -= VCOM_TX_EPSIZE;
- sendBuf += VCOM_TX_EPSIZE;
- }
-
- if (len != 0) {
- countTx = len;
- UserToPMABufferCopy(sendBuf,VCOM_TX_ADDR,len);
- _SetEPTxCount(VCOM_TX_ENDP,len);
- _SetEPTxValid(VCOM_TX_ENDP);
- }
-
- return sent;
-}
-
-/* returns the number of available bytes are in the recv FIFO */
-uint8 usbBytesAvailable(void) {
- return VCOM_RX_EPSIZE - maxNewBytes;
-}
-
-/* copies len bytes from the local recieve FIFO (not
- usb packet buffer) into recvBuf and deq's the fifo.
- will only copy the minimum of len or the available
- bytes. returns the number of bytes copied */
-uint8 usbReceiveBytes(uint8* recvBuf, uint8 len) {
- if (len > VCOM_RX_EPSIZE - maxNewBytes) {
- len = VCOM_RX_EPSIZE - maxNewBytes;
- }
-
- int i;
- for (i=0;i<len;i++) {
- recvBuf[i] = (uint8)(vcomBufferRx[recvBufOut]);
- recvBufOut = (recvBufOut + 1) % VCOM_RX_EPSIZE;
- }
-
- maxNewBytes += len;
-
- /* re-enable the rx endpoint which we had set to receive 0 bytes */
- if (maxNewBytes - len == 0) {
- SetEPRxCount(VCOM_RX_ENDP,maxNewBytes);
- }
-
- return len;
-}
-
-void usbSendHello(void) {
- char* myStr = "hello!";
-
- uint8 bufin = 48 + recvBufIn;;
- uint8 bufout = 48 + recvBufOut;
- uint8 avail = 48 + usbBytesAvailable();
-
- char *line = "\r\n";
- while(usbSendBytes(&bufin,1) == 0);
- while(usbSendBytes(&bufout,1) == 0);
- while(usbSendBytes(&avail,1) == 0);
- while(usbSendBytes((uint8*)line,2) == 0);
-
- uint8 recv[64];
- usbReceiveBytes(&recv[0],1);
-}
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