+++ /dev/null
-/*----------------------------------------------------------------------------
- * U S B - K e r n e l
- *----------------------------------------------------------------------------
- * Name: usbhw.c
- * Purpose: USB Hardware Layer Module for NXP's LPC17xx MCU
- * Version: V1.20
- *----------------------------------------------------------------------------
- * This software is supplied "AS IS" without any warranties, express,
- * implied or statutory, including but not limited to the implied
- * warranties of fitness for purpose, satisfactory quality and
- * noninfringement. Keil extends you a royalty-free right to reproduce
- * and distribute executable files created using this software for use
- * on NXP Semiconductors LPC family microcontroller devices only. Nothing
- * else gives you the right to use this software.
- *
- * Copyright (c) 2009 Keil - An ARM Company. All rights reserved.
- *----------------------------------------------------------------------------
- * History:
- * V1.20 Added USB_ClearEPBuf
- * V1.00 Initial Version
- *----------------------------------------------------------------------------*/
-#include <board.h> /* LPC17xx definitions */
-#include "usb.h"
-#include "cfg.h"
-#include "reg.h"
-#include "hw.h"
-#include "core.h"
-#include "user.h"
-
-#if defined ( __CC_ARM__ )
-#pragma diag_suppress 1441
-#endif
-
-
-#define EP_MSK_CTRL 0x0001 /* Control Endpoint Logical Address Mask */
-#define EP_MSK_BULK 0xC924 /* Bulk Endpoint Logical Address Mask */
-#define EP_MSK_INT 0x4492 /* Interrupt Endpoint Logical Address Mask */
-#define EP_MSK_ISO 0x1248 /* Isochronous Endpoint Logical Address Mask */
-
-
-#if USB_DMA
-
-#pragma arm section zidata = "USB_RAM"
-uint32_t UDCA[USB_EP_NUM]; /* UDCA in USB RAM */
-uint32_t DD_NISO_Mem[4*DD_NISO_CNT]; /* Non-Iso DMA Descriptor Memory */
-uint32_t DD_ISO_Mem [5*DD_ISO_CNT]; /* Iso DMA Descriptor Memory */
-#pragma arm section zidata
-uint32_t udca[USB_EP_NUM]; /* UDCA saved values */
-
-uint32_t DDMemMap[2]; /* DMA Descriptor Memory Usage */
-
-#endif
-
-
-/*
- * Get Endpoint Physical Address
- * Parameters: EPNum: Endpoint Number
- * EPNum.0..3: Address
- * EPNum.7: Dir
- * Return Value: Endpoint Physical Address
- */
-
-uint32_t EPAdr (uint32_t EPNum) {
- uint32_t val;
-
- val = (EPNum & 0x0F) << 1;
- if (EPNum & 0x80) {
- val += 1;
- }
- return (val);
-}
-
-
-/*
- * Write Command
- * Parameters: cmd: Command
- * Return Value: None
- */
-
-void WrCmd (uint32_t cmd) {
-
- USB->USBDevIntClr = CCEMTY_INT;
- USB->USBCmdCode = cmd;
- while ((USB->USBDevIntSt & CCEMTY_INT) == 0);
-}
-
-
-/*
- * Write Command Data
- * Parameters: cmd: Command
- * val: Data
- * Return Value: None
- */
-
-void WrCmdDat (uint32_t cmd, uint32_t val) {
-
- USB->USBDevIntClr = CCEMTY_INT;
- USB->USBCmdCode = cmd;
- while ((USB->USBDevIntSt & CCEMTY_INT) == 0);
- USB->USBDevIntClr = CCEMTY_INT;
- USB->USBCmdCode = val;
- while ((USB->USBDevIntSt & CCEMTY_INT) == 0);
-}
-
-
-/*
- * Write Command to Endpoint
- * Parameters: cmd: Command
- * val: Data
- * Return Value: None
- */
-
-void WrCmdEP (uint32_t EPNum, uint32_t cmd){
-
- USB->USBDevIntClr = CCEMTY_INT;
- USB->USBCmdCode = CMD_SEL_EP(EPAdr(EPNum));
- while ((USB->USBDevIntSt & CCEMTY_INT) == 0);
- USB->USBDevIntClr = CCEMTY_INT;
- USB->USBCmdCode = cmd;
- while ((USB->USBDevIntSt & CCEMTY_INT) == 0);
-}
-
-
-/*
- * Read Command Data
- * Parameters: cmd: Command
- * Return Value: Data Value
- */
-
-uint32_t RdCmdDat (uint32_t cmd) {
-
- USB->USBDevIntClr = CCEMTY_INT | CDFULL_INT;
- USB->USBCmdCode = cmd;
- while ((USB->USBDevIntSt & CDFULL_INT) == 0);
- return (USB->USBCmdData);
-}
-
-
-/*
- * USB Initialize Function
- * Called by the User to initialize USB
- * Return Value: None
- */
-
-void USB_Init (void) {
-
- PINCON->PINSEL1 &= ~((3<<26)|(3<<28)); /* P0.29 D+, P0.30 D- */
- PINCON->PINSEL1 |= ((1<<26)|(1<<28)); /* PINSEL1 26.27, 28.29 = 01 */
-
- PINCON->PINSEL3 &= ~((3<< 4)|(3<<28)); /* P1.18 GoodLink, P1.30 VBUS */
- PINCON->PINSEL3 |= ((1<< 4)|(2<<28)); /* PINSEL3 4.5 = 01, 28.29 = 10 */
-
- PINCON->PINSEL4 &= ~((3<<18) ); /* P2.9 SoftConnect */
- PINCON->PINSEL4 |= ((1<<18) ); /* PINSEL4 18.19 = 01 */
-
- SC->PCONP |= (1UL<<31); /* USB PCLK -> enable USB Per. */
-
- USB->USBClkCtrl = 0x1A; /* Dev, PortSel, AHB clock enable */
- while ((USB->USBClkSt & 0x1A) != 0x1A);
-
- NVIC_EnableIRQ(USB_IRQn); /* enable USB interrupt */
-
- USB_Reset();
- USB_SetAddress(0);
-}
-
-
-/*
- * USB Connect Function
- * Called by the User to Connect/Disconnect USB
- * Parameters: con: Connect/Disconnect
- * Return Value: None
- */
-
-void USB_Connect (uint32_t con) {
- WrCmdDat(CMD_SET_DEV_STAT, DAT_WR_BYTE(con ? DEV_CON : 0));
-}
-
-
-/*
- * USB Reset Function
- * Called automatically on USB Reset
- * Return Value: None
- */
-
-void USB_Reset (void) {
-#if USB_DMA
- uint32_t n;
-#endif
-
- USB->USBEpInd = 0;
- USB->USBMaxPSize = USB_MAX_PACKET0;
- USB->USBEpInd = 1;
- USB->USBMaxPSize = USB_MAX_PACKET0;
- while ((USB->USBDevIntSt & EP_RLZED_INT) == 0);
-
- USB->USBEpIntClr = 0xFFFFFFFF;
- USB->USBEpIntEn = 0xFFFFFFFF ^ USB_DMA_EP;
- USB->USBDevIntClr = 0xFFFFFFFF;
- USB->USBDevIntEn = DEV_STAT_INT | EP_SLOW_INT |
- (USB_SOF_EVENT ? FRAME_INT : 0) |
- (USB_ERROR_EVENT ? ERR_INT : 0);
-
-#if USB_DMA
- USB->USBUDCAH = USB_RAM_ADR;
- USB->USBDMARClr = 0xFFFFFFFF;
- USB->USBEpDMADis = 0xFFFFFFFF;
- USB->USBEpDMAEn = USB_DMA_EP;
- USB->USBEoTIntClr = 0xFFFFFFFF;
- USB->USBNDDRIntClr = 0xFFFFFFFF;
- USB->USBSysErrIntClr = 0xFFFFFFFF;
- USB->USBDMAIntEn = 0x00000007;
- DDMemMap[0] = 0x00000000;
- DDMemMap[1] = 0x00000000;
- for (n = 0; n < USB_EP_NUM; n++) {
- udca[n] = 0;
- UDCA[n] = 0;
- }
-#endif
-}
-
-
-/*
- * USB Suspend Function
- * Called automatically on USB Suspend
- * Return Value: None
- */
-
-void USB_Suspend (void) {
- /* Performed by Hardware */
-}
-
-
-/*
- * USB Resume Function
- * Called automatically on USB Resume
- * Return Value: None
- */
-
-void USB_Resume (void) {
- /* Performed by Hardware */
-}
-
-
-/*
- * USB Remote Wakeup Function
- * Called automatically on USB Remote Wakeup
- * Return Value: None
- */
-
-void USB_WakeUp (void) {
-
- if (USB_DeviceStatus & USB_GETSTATUS_REMOTE_WAKEUP) {
- WrCmdDat(CMD_SET_DEV_STAT, DAT_WR_BYTE(DEV_CON));
- }
-}
-
-
-/*
- * USB Remote Wakeup Configuration Function
- * Parameters: cfg: Enable/Disable
- * Return Value: None
- */
-
-void USB_WakeUpCfg (uint32_t cfg) {
- /* Not needed */
-}
-
-
-/*
- * USB Set Address Function
- * Parameters: adr: USB Address
- * Return Value: None
- */
-
-void USB_SetAddress (uint32_t adr) {
- WrCmdDat(CMD_SET_ADDR, DAT_WR_BYTE(DEV_EN | adr)); /* Don't wait for next */
- WrCmdDat(CMD_SET_ADDR, DAT_WR_BYTE(DEV_EN | adr)); /* Setup Status Phase */
-}
-
-
-/*
- * USB Configure Function
- * Parameters: cfg: Configure/Deconfigure
- * Return Value: None
- */
-
-void USB_Configure (uint32_t cfg) {
-
- WrCmdDat(CMD_CFG_DEV, DAT_WR_BYTE(cfg ? CONF_DVICE : 0));
-
- USB->USBReEp = 0x00000003;
- while ((USB->USBDevIntSt & EP_RLZED_INT) == 0);
- USB->USBDevIntClr = EP_RLZED_INT;
-}
-
-
-/*
- * Configure USB Endpoint according to Descriptor
- * Parameters: pEPD: Pointer to Endpoint Descriptor
- * Return Value: None
- */
-
-void USB_ConfigEP (USB_ENDPOINT_DESCRIPTOR *pEPD) {
- uint32_t num;
-
- num = EPAdr(pEPD->bEndpointAddress);
- USB->USBReEp |= (1 << num);
- USB->USBEpInd = num;
- USB->USBMaxPSize = pEPD->wMaxPacketSize;
- while ((USB->USBDevIntSt & EP_RLZED_INT) == 0);
- USB->USBDevIntClr = EP_RLZED_INT;
-}
-
-
-/*
- * Set Direction for USB Control Endpoint
- * Parameters: dir: Out (dir == 0), In (dir <> 0)
- * Return Value: None
- */
-
-void USB_DirCtrlEP (uint32_t dir) {
- /* Not needed */
-}
-
-
-/*
- * Enable USB Endpoint
- * Parameters: EPNum: Endpoint Number
- * EPNum.0..3: Address
- * EPNum.7: Dir
- * Return Value: None
- */
-
-void USB_EnableEP (uint32_t EPNum) {
- WrCmdDat(CMD_SET_EP_STAT(EPAdr(EPNum)), DAT_WR_BYTE(0));
-}
-
-
-/*
- * Disable USB Endpoint
- * Parameters: EPNum: Endpoint Number
- * EPNum.0..3: Address
- * EPNum.7: Dir
- * Return Value: None
- */
-
-void USB_DisableEP (uint32_t EPNum) {
- WrCmdDat(CMD_SET_EP_STAT(EPAdr(EPNum)), DAT_WR_BYTE(EP_STAT_DA));
-}
-
-
-/*
- * Reset USB Endpoint
- * Parameters: EPNum: Endpoint Number
- * EPNum.0..3: Address
- * EPNum.7: Dir
- * Return Value: None
- */
-
-void USB_ResetEP (uint32_t EPNum) {
- WrCmdDat(CMD_SET_EP_STAT(EPAdr(EPNum)), DAT_WR_BYTE(0));
-}
-
-
-/*
- * Set Stall for USB Endpoint
- * Parameters: EPNum: Endpoint Number
- * EPNum.0..3: Address
- * EPNum.7: Dir
- * Return Value: None
- */
-
-void USB_SetStallEP (uint32_t EPNum) {
- WrCmdDat(CMD_SET_EP_STAT(EPAdr(EPNum)), DAT_WR_BYTE(EP_STAT_ST));
-}
-
-
-/*
- * Clear Stall for USB Endpoint
- * Parameters: EPNum: Endpoint Number
- * EPNum.0..3: Address
- * EPNum.7: Dir
- * Return Value: None
- */
-
-void USB_ClrStallEP (uint32_t EPNum) {
- WrCmdDat(CMD_SET_EP_STAT(EPAdr(EPNum)), DAT_WR_BYTE(0));
-}
-
-
-/*
- * Clear USB Endpoint Buffer
- * Parameters: EPNum: Endpoint Number
- * EPNum.0..3: Address
- * EPNum.7: Dir
- * Return Value: None
- */
-
-void USB_ClearEPBuf (uint32_t EPNum) {
- WrCmdEP(EPNum, CMD_CLR_BUF);
-}
-
-
-/*
- * Read USB Endpoint Data
- * Parameters: EPNum: Endpoint Number
- * EPNum.0..3: Address
- * EPNum.7: Dir
- * pData: Pointer to Data Buffer
- * Return Value: Number of bytes read
- */
-
-uint32_t USB_ReadEP (uint32_t EPNum, uint8_t *pData) {
- uint32_t cnt, n;
-
- USB->USBCtrl = ((EPNum & 0x0F) << 2) | CTRL_RD_EN;
-
- do {
- cnt = USB->USBRxPLen;
- } while ((cnt & PKT_RDY) == 0);
- cnt &= PKT_LNGTH_MASK;
-
- for (n = 0; n < (cnt + 3) / 4; n++) {
- *((__packed uint32_t *)pData) = USB->USBRxData;
- pData += 4;
- }
- USB->USBCtrl = 0;
-
- if (((EP_MSK_ISO >> EPNum) & 1) == 0) { /* Non-Isochronous Endpoint */
- WrCmdEP(EPNum, CMD_CLR_BUF);
- }
-
- return (cnt);
-}
-
-
-/*
- * Write USB Endpoint Data
- * Parameters: EPNum: Endpoint Number
- * EPNum.0..3: Address
- * EPNum.7: Dir
- * pData: Pointer to Data Buffer
- * cnt: Number of bytes to write
- * Return Value: Number of bytes written
- */
-
-uint32_t USB_WriteEP (uint32_t EPNum, uint8_t *pData, uint32_t cnt) {
- uint32_t n;
-
- USB->USBCtrl = ((EPNum & 0x0F) << 2) | CTRL_WR_EN;
-
- USB->USBTxPLen = cnt;
-
- for (n = 0; n < (cnt + 3) / 4; n++) {
- USB->USBTxData = *((__packed uint32_t *)pData);
- pData += 4;
- }
- USB->USBCtrl = 0;
- WrCmdEP(EPNum, CMD_VALID_BUF);
- return (cnt);
-}
-
-#if USB_DMA
-
-/* DMA Descriptor Memory Layout */
-const uint32_t DDAdr[2] = { DD_NISO_ADR, DD_ISO_ADR };
-const uint32_t DDSz [2] = { 16, 20 };
-
-
-/*
- * Setup USB DMA Transfer for selected Endpoint
- * Parameters: EPNum: Endpoint Number
- * pDD: Pointer to DMA Descriptor
- * Return Value: TRUE - Success, FALSE - Error
- */
-
-uint32_t USB_DMA_Setup(uint32_t EPNum, USB_DMA_DESCRIPTOR *pDD) {
- uint32_t num, ptr, nxt, iso, n;
-
- iso = pDD->Cfg.Type.IsoEP; /* Iso or Non-Iso Descriptor */
- num = EPAdr(EPNum); /* Endpoint's Physical Address */
-
- ptr = 0; /* Current Descriptor */
- nxt = udca[num]; /* Initial Descriptor */
- while (nxt) { /* Go through Descriptor List */
- ptr = nxt; /* Current Descriptor */
- if (!pDD->Cfg.Type.Link) { /* Check for Linked Descriptors */
- n = (ptr - DDAdr[iso]) / DDSz[iso]; /* Descriptor Index */
- DDMemMap[iso] &= ~(1 << n); /* Unmark Memory Usage */
- }
- nxt = *((uint32_t *)ptr); /* Next Descriptor */
- }
-
- for (n = 0; n < 32; n++) { /* Search for available Memory */
- if ((DDMemMap[iso] & (1 << n)) == 0) {
- break; /* Memory found */
- }
- }
- if (n == 32) return (FALSE); /* Memory not available */
-
- DDMemMap[iso] |= 1 << n; /* Mark Memory Usage */
- nxt = DDAdr[iso] + n * DDSz[iso]; /* Next Descriptor */
-
- if (ptr && pDD->Cfg.Type.Link) {
- *((uint32_t *)(ptr + 0)) = nxt; /* Link in new Descriptor */
- *((uint32_t *)(ptr + 4)) |= 0x00000004; /* Next DD is Valid */
- } else {
- udca[num] = nxt; /* Save new Descriptor */
- UDCA[num] = nxt; /* Update UDCA in USB */
- }
-
- /* Fill in DMA Descriptor */
- *(((uint32_t *)nxt)++) = 0; /* Next DD Pointer */
- *(((uint32_t *)nxt)++) = pDD->Cfg.Type.ATLE |
- (pDD->Cfg.Type.IsoEP << 4) |
- (pDD->MaxSize << 5) |
- (pDD->BufLen << 16);
- *(((uint32_t *)nxt)++) = pDD->BufAdr;
- *(((uint32_t *)nxt)++) = pDD->Cfg.Type.LenPos << 8;
- if (iso) {
- *((uint32_t *)nxt) = pDD->InfoAdr;
- }
-
- return (TRUE); /* Success */
-}
-
-
-/*
- * Enable USB DMA Endpoint
- * Parameters: EPNum: Endpoint Number
- * EPNum.0..3: Address
- * EPNum.7: Dir
- * Return Value: None
- */
-
-void USB_DMA_Enable (uint32_t EPNum) {
- USB->USBEpDMAEn = 1 << EPAdr(EPNum);
-}
-
-
-/*
- * Disable USB DMA Endpoint
- * Parameters: EPNum: Endpoint Number
- * EPNum.0..3: Address
- * EPNum.7: Dir
- * Return Value: None
- */
-
-void USB_DMA_Disable (uint32_t EPNum) {
- USB->USBEpDMADis = 1 << EPAdr(EPNum);
-}
-
-
-/*
- * Get USB DMA Endpoint Status
- * Parameters: EPNum: Endpoint Number
- * EPNum.0..3: Address
- * EPNum.7: Dir
- * Return Value: DMA Status
- */
-
-uint32_t USB_DMA_Status (uint32_t EPNum) {
- uint32_t ptr, val;
-
- ptr = UDCA[EPAdr(EPNum)]; /* Current Descriptor */
- if (ptr == 0)
- return (USB_DMA_INVALID);
-
- val = *((uint32_t *)(ptr + 3*4)); /* Status Information */
- switch ((val >> 1) & 0x0F) {
- case 0x00: /* Not serviced */
- return (USB_DMA_IDLE);
- case 0x01: /* Being serviced */
- return (USB_DMA_BUSY);
- case 0x02: /* Normal Completition */
- return (USB_DMA_DONE);
- case 0x03: /* Data Under Run */
- return (USB_DMA_UNDER_RUN);
- case 0x08: /* Data Over Run */
- return (USB_DMA_OVER_RUN);
- case 0x09: /* System Error */
- return (USB_DMA_ERROR);
- }
-
- return (USB_DMA_UNKNOWN);
-}
-
-
-/*
- * Get USB DMA Endpoint Current Buffer Address
- * Parameters: EPNum: Endpoint Number
- * EPNum.0..3: Address
- * EPNum.7: Dir
- * Return Value: DMA Address (or -1 when DMA is Invalid)
- */
-
-uint32_t USB_DMA_BufAdr (uint32_t EPNum) {
- uint32_t ptr, val;
-
- ptr = UDCA[EPAdr(EPNum)]; /* Current Descriptor */
- if (ptr == 0)
- {
- return ((uint32_t)(-1)); /* DMA Invalid */
- }
-
- val = *((uint32_t *)(ptr + 2*4)); /* Buffer Address */
- return (val); /* Current Address */
-}
-
-
-/*
- * Get USB DMA Endpoint Current Buffer Count
- * Number of transfered Bytes or Iso Packets
- * Parameters: EPNum: Endpoint Number
- * EPNum.0..3: Address
- * EPNum.7: Dir
- * Return Value: DMA Count (or -1 when DMA is Invalid)
- */
-
-uint32_t USB_DMA_BufCnt (uint32_t EPNum) {
- uint32_t ptr, val;
-
- ptr = UDCA[EPAdr(EPNum)]; /* Current Descriptor */
- if (ptr == 0)
- {
- return ((uint32_t)(-1)); /* DMA Invalid */
- }
- val = *((uint32_t *)(ptr + 3*4)); /* Status Information */
- return (val >> 16); /* Current Count */
-}
-
-
-#endif /* USB_DMA */
-
-
-/*
- * Get USB Last Frame Number
- * Parameters: None
- * Return Value: Frame Number
- */
-
-uint32_t USB_GetFrame (void) {
- uint32_t val;
-
- WrCmd(CMD_RD_FRAME);
- val = RdCmdDat(DAT_RD_FRAME);
- val = val | (RdCmdDat(DAT_RD_FRAME) << 8);
-
- return (val);
-}
-
-
-/*
- * USB Interrupt Service Routine
- */
-
-void USB_IRQHandler (void) {
- uint32_t disr, val, n, m;
- uint32_t episr, episrCur;
-
- disr = USB->USBDevIntSt; /* Device Interrupt Status */
-
- /* Device Status Interrupt (Reset, Connect change, Suspend/Resume) */
- if (disr & DEV_STAT_INT) {
- USB->USBDevIntClr = DEV_STAT_INT;
- WrCmd(CMD_GET_DEV_STAT);
- val = RdCmdDat(DAT_GET_DEV_STAT); /* Device Status */
- if (val & DEV_RST) { /* Reset */
- USB_Reset();
-#if USB_RESET_EVENT
- USB_Reset_Event();
-#endif
- }
- if (val & DEV_CON_CH) { /* Connect change */
-#if USB_POWER_EVENT
- USB_Power_Event(val & DEV_CON);
-#endif
- }
- if (val & DEV_SUS_CH) { /* Suspend/Resume */
- if (val & DEV_SUS) { /* Suspend */
- USB_Suspend();
-#if USB_SUSPEND_EVENT
- USB_Suspend_Event();
-#endif
- } else { /* Resume */
- USB_Resume();
-#if USB_RESUME_EVENT
- USB_Resume_Event();
-#endif
- }
- }
- goto isr_end;
- }
-
-#if USB_SOF_EVENT
- /* Start of Frame Interrupt */
- if (disr & FRAME_INT) {
- USB_SOF_Event();
- }
-#endif
-
-#if USB_ERROR_EVENT
- /* Error Interrupt */
- if (disr & ERR_INT) {
- WrCmd(CMD_RD_ERR_STAT);
- val = RdCmdDat(DAT_RD_ERR_STAT);
- USB_Error_Event(val);
- }
-#endif
-
- /* Endpoint's Slow Interrupt */
- if (disr & EP_SLOW_INT) {
- episrCur = 0;
- episr = USB->USBEpIntSt;
- for (n = 0; n < USB_EP_NUM; n++) { /* Check All Endpoints */
- if (episr == episrCur) break; /* break if all EP interrupts handled */
- if (episr & (1 << n)) {
- episrCur |= (1 << n);
- m = n >> 1;
-
- USB->USBEpIntClr = (1 << n);
- while ((USB->USBDevIntSt & CDFULL_INT) == 0);
- val = USB->USBCmdData;
-
- if ((n & 1) == 0) { /* OUT Endpoint */
- if (n == 0) { /* Control OUT Endpoint */
- if (val & EP_SEL_STP) { /* Setup Packet */
- if (USB_P_EP[0]) {
- USB_P_EP[0](USB_EVT_SETUP);
- continue;
- }
- }
- }
- if (USB_P_EP[m]) {
- USB_P_EP[m](USB_EVT_OUT);
- }
- } else { /* IN Endpoint */
- if (USB_P_EP[m]) {
- USB_P_EP[m](USB_EVT_IN);
- }
- }
- }
- }
- USB->USBDevIntClr = EP_SLOW_INT;
- }
-
-#if USB_DMA
-
- if (USB->USBDMAIntSt & 0x00000001) { /* End of Transfer Interrupt */
- val = USB->USBEoTIntSt;
- for (n = 2; n < USB_EP_NUM; n++) { /* Check All Endpoints */
- if (val & (1 << n)) {
- m = n >> 1;
- if ((n & 1) == 0) { /* OUT Endpoint */
- if (USB_P_EP[m]) {
- USB_P_EP[m](USB_EVT_OUT_DMA_EOT);
- }
- } else { /* IN Endpoint */
- if (USB_P_EP[m]) {
- USB_P_EP[m](USB_EVT_IN_DMA_EOT);
- }
- }
- }
- }
- USB->USBEoTIntClr = val;
- }
-
- if (USB->USBDMAIntSt & 0x00000002) { /* New DD Request Interrupt */
- val = USB->USBNDDRIntSt;
- for (n = 2; n < USB_EP_NUM; n++) { /* Check All Endpoints */
- if (val & (1 << n)) {
- m = n >> 1;
- if ((n & 1) == 0) { /* OUT Endpoint */
- if (USB_P_EP[m]) {
- USB_P_EP[m](USB_EVT_OUT_DMA_NDR);
- }
- } else { /* IN Endpoint */
- if (USB_P_EP[m]) {
- USB_P_EP[m](USB_EVT_IN_DMA_NDR);
- }
- }
- }
- }
- USB->USBNDDRIntClr = val;
- }
-
- if (USB->USBDMAIntSt & 0x00000004) { /* System Error Interrupt */
- val = USB->USBSysErrIntSt;
- for (n = 2; n < USB_EP_NUM; n++) { /* Check All Endpoints */
- if (val & (1 << n)) {
- m = n >> 1;
- if ((n & 1) == 0) { /* OUT Endpoint */
- if (USB_P_EP[m]) {
- USB_P_EP[m](USB_EVT_OUT_DMA_ERR);
- }
- } else { /* IN Endpoint */
- if (USB_P_EP[m]) {
- USB_P_EP[m](USB_EVT_IN_DMA_ERR);
- }
- }
- }
- }
- USB->USBSysErrIntClr = val;
- }
-
-#endif /* USB_DMA */
-
-isr_end:
- return;
-}
git.asbjorn.biz / rapper.git / blobdiff