Remove files accidentally added to repository.
diff --git a/Demo/CORTEX_LPC1768_GCC_Rowley/LPCUSB/usbhw_lpc.c.bak b/Demo/CORTEX_LPC1768_GCC_Rowley/LPCUSB/usbhw_lpc.c.bak
deleted file mode 100644
index 29de3de..0000000
--- a/Demo/CORTEX_LPC1768_GCC_Rowley/LPCUSB/usbhw_lpc.c.bak
+++ /dev/null
@@ -1,521 +0,0 @@
-/*
- LPCUSB, an USB device driver for LPC microcontrollers
- Copyright (C) 2006 Bertrik Sikken (bertrik@sikken.nl)
-
- Redistribution and use in source and binary forms, with or without
- modification, are permitted provided that the following conditions are met:
-
- 1. Redistributions of source code must retain the above copyright
- notice, this list of conditions and the following disclaimer.
- 2. Redistributions in binary form must reproduce the above copyright
- notice, this list of conditions and the following disclaimer in the
- documentation and/or other materials provided with the distribution.
- 3. The name of the author may not be used to endorse or promote products
- derived from this software without specific prior written permission.
-
- THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
- IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
- OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
- IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
- INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-*/
-
-
-/** @file
- USB hardware layer
- */
-
-
-#include "usbdebug.h"
-#include "usbhw_lpc.h"
-#include "usbapi.h"
-
-/** Installed device interrupt handler */
-static TFnDevIntHandler *_pfnDevIntHandler = NULL;
-/** Installed endpoint interrupt handlers */
-static TFnEPIntHandler *_apfnEPIntHandlers[16];
-/** Installed frame interrupt handlers */
-static TFnFrameHandler *_pfnFrameHandler = NULL;
-
-/** convert from endpoint address to endpoint index */
-#define EP2IDX(bEP) ((((bEP)&0xF)<<1)|(((bEP)&0x80)>>7))
-/** convert from endpoint index to endpoint address */
-#define IDX2EP(idx) ((((idx)<<7)&0x80)|(((idx)>>1)&0xF))
-
-
-
-/**
- Local function to wait for a device interrupt (and clear it)
-
- @param [in] dwIntr Bitmask of interrupts to wait for
- */
-static void Wait4DevInt(unsigned long dwIntr)
-{
- // wait for specific interrupt
- while ((USB->USBDevIntSt & dwIntr) != dwIntr);
- // clear the interrupt bits
- USB->USBDevIntClr = dwIntr;
-}
-
-
-/**
- Local function to send a command to the USB protocol engine
-
- @param [in] bCmd Command to send
- */
-static void USBHwCmd(unsigned char bCmd)
-{
- // clear CDFULL/CCEMTY
- USB->USBDevIntClr = CDFULL | CCEMTY;
- // write command code
- USB->USBCmdCode = 0x00000500 | (bCmd << 16);
- Wait4DevInt(CCEMTY);
-}
-
-
-/**
- Local function to send a command + data to the USB protocol engine
-
- @param [in] bCmd Command to send
- @param [in] bData Data to send
- */
-static void USBHwCmdWrite(unsigned char bCmd, unsigned short bData)
-{
- // write command code
- USBHwCmd(bCmd);
-
- // write command data
- USB->USBCmdCode = 0x00000100 | (bData << 16);
- Wait4DevInt(CCEMTY);
-}
-
-
-/**
- Local function to send a command to the USB protocol engine and read data
-
- @param [in] bCmd Command to send
-
- @return the data
- */
-static unsigned char USBHwCmdRead(unsigned char bCmd)
-{
- // write command code
- USBHwCmd(bCmd);
-
- // get data
- USB->USBCmdCode = 0x00000200 | (bCmd << 16);
- Wait4DevInt(CDFULL);
- return USB->USBCmdData;
-}
-
-
-/**
- 'Realizes' an endpoint, meaning that buffer space is reserved for
- it. An endpoint needs to be realised before it can be used.
-
- From experiments, it appears that a USB reset causes USBReEP to
- re-initialise to 3 (= just the control endpoints).
- However, a USB bus reset does not disturb the USBMaxPSize settings.
-
- @param [in] idx Endpoint index
- @param [in] wMaxPSize Maximum packet size for this endpoint
- */
-static void USBHwEPRealize(int idx, unsigned short wMaxPSize)
-{
- USB->USBReEP |= (1 << idx);
- USB->USBEpInd = idx;
- USB->USBMaxPSize = wMaxPSize;
- Wait4DevInt(EP_RLZED);
-}
-
-
-/**
- Enables or disables an endpoint
-
- @param [in] idx Endpoint index
- @param [in] fEnable TRUE to enable, FALSE to disable
- */
-static void USBHwEPEnable(int idx, BOOL fEnable)
-{
- USBHwCmdWrite(CMD_EP_SET_STATUS | idx, fEnable ? 0 : EP_DA);
-}
-
-
-/**
- Configures an endpoint and enables it
-
- @param [in] bEP Endpoint number
- @param [in] wMaxPacketSize Maximum packet size for this EP
- */
-void USBHwEPConfig(unsigned char bEP, unsigned short wMaxPacketSize)
-{
- int idx;
-
- idx = EP2IDX(bEP);
-
- // realise EP
- USBHwEPRealize(idx, wMaxPacketSize);
-
- // enable EP
- USBHwEPEnable(idx, TRUE);
-}
-
-
-/**
- Registers an endpoint event callback
-
- @param [in] bEP Endpoint number
- @param [in] pfnHandler Callback function
- */
-void USBHwRegisterEPIntHandler(unsigned char bEP, TFnEPIntHandler *pfnHandler)
-{
- int idx;
-
- idx = EP2IDX(bEP);
-
- ASSERT(idx<32);
-
- /* add handler to list of EP handlers */
- _apfnEPIntHandlers[idx / 2] = pfnHandler;
-
- /* enable EP interrupt */
- USB->USBEpIntEn |= (1 << idx);
- USB->USBDevIntEn |= EP_SLOW;
-
- DBG("Registered handler for EP 0x%x\n", bEP);
-}
-
-
-/**
- Registers an device status callback
-
- @param [in] pfnHandler Callback function
- */
-void USBHwRegisterDevIntHandler(TFnDevIntHandler *pfnHandler)
-{
- _pfnDevIntHandler = pfnHandler;
-
- // enable device interrupt
- USB->USBDevIntEn |= DEV_STAT;
-
- DBG("Registered handler for device status\n");
-}
-
-
-/**
- Registers the frame callback
-
- @param [in] pfnHandler Callback function
- */
-void USBHwRegisterFrameHandler(TFnFrameHandler *pfnHandler)
-{
- _pfnFrameHandler = pfnHandler;
-
- // enable device interrupt
- USB->USBDevIntEn |= FRAME;
-
- DBG("Registered handler for frame\n");
-}
-
-
-/**
- Sets the USB address.
-
- @param [in] bAddr Device address to set
- */
-void USBHwSetAddress(unsigned char bAddr)
-{
- USBHwCmdWrite(CMD_DEV_SET_ADDRESS, DEV_EN | bAddr);
-}
-
-
-/**
- Connects or disconnects from the USB bus
-
- @param [in] fConnect If TRUE, connect, otherwise disconnect
- */
-void USBHwConnect(BOOL fConnect)
-{
- USBHwCmdWrite(CMD_DEV_STATUS, fConnect ? CON : 0);
-}
-
-
-/**
- Enables interrupt on NAK condition
-
- For IN endpoints a NAK is generated when the host wants to read data
- from the device, but none is available in the endpoint buffer.
- For OUT endpoints a NAK is generated when the host wants to write data
- to the device, but the endpoint buffer is still full.
-
- The endpoint interrupt handlers can distinguish regular (ACK) interrupts
- from NAK interrupt by checking the bits in their bEPStatus argument.
-
- @param [in] bIntBits Bitmap indicating which NAK interrupts to enable
- */
-void USBHwNakIntEnable(unsigned char bIntBits)
-{
- USBHwCmdWrite(CMD_DEV_SET_MODE, bIntBits);
-}
-
-
-/**
- Gets the status from a specific endpoint.
-
- @param [in] bEP Endpoint number
- @return Endpoint status byte (containing EP_STATUS_xxx bits)
- */
-unsigned char USBHwEPGetStatus(unsigned char bEP)
-{
- int idx = EP2IDX(bEP);
-
- return USBHwCmdRead(CMD_EP_SELECT | idx);
-}
-
-
-/**
- Sets the stalled property of an endpoint
-
- @param [in] bEP Endpoint number
- @param [in] fStall TRUE to stall, FALSE to unstall
- */
-void USBHwEPStall(unsigned char bEP, BOOL fStall)
-{
- int idx = EP2IDX(bEP);
-
- USBHwCmdWrite(CMD_EP_SET_STATUS | idx, fStall ? EP_ST : 0);
-}
-
-
-/**
- Writes data to an endpoint buffer
-
- @param [in] bEP Endpoint number
- @param [in] pbBuf Endpoint data
- @param [in] iLen Number of bytes to write
-
- @return TRUE if the data was successfully written or <0 in case of error.
-*/
-int USBHwEPWrite(unsigned char bEP, unsigned char *pbBuf, int iLen)
-{
- int idx;
-
- idx = EP2IDX(bEP);
-
- // set write enable for specific endpoint
- USB->USBCtrl = WR_EN | ((bEP & 0xF) << 2);
-
- // set packet length
- USB->USBTxPLen = iLen;
-
- // write data
- while (USB->USBCtrl & WR_EN) {
- USB->USBTxData = (pbBuf[3] << 24) | (pbBuf[2] << 16) | (pbBuf[1] << 8) | pbBuf[0];
- pbBuf += 4;
- }
-
- // select endpoint and validate buffer
- USBHwCmd(CMD_EP_SELECT | idx);
- USBHwCmd(CMD_EP_VALIDATE_BUFFER);
-
- return iLen;
-}
-
-
-/**
- Reads data from an endpoint buffer
-
- @param [in] bEP Endpoint number
- @param [in] pbBuf Endpoint data
- @param [in] iMaxLen Maximum number of bytes to read
-
- @return the number of bytes available in the EP (possibly more than iMaxLen),
- or <0 in case of error.
- */
-int USBHwEPRead(unsigned char bEP, unsigned char *pbBuf, int iMaxLen)
-{
- unsigned int i, idx;
- unsigned long dwData, dwLen;
-
- idx = EP2IDX(bEP);
-
- // set read enable bit for specific endpoint
- USB->USBCtrl = RD_EN | ((bEP & 0xF) << 2);
-
- // wait for PKT_RDY
- do {
- dwLen = USB->USBRxPLen;
- } while ((dwLen & PKT_RDY) == 0);
-
- // packet valid?
- if ((dwLen & DV) == 0) {
- return -1;
- }
-
- // get length
- dwLen &= PKT_LNGTH_MASK;
-
- // get data
- dwData = 0;
- for (i = 0; i < dwLen; i++) {
- if ((i % 4) == 0) {
- dwData = USB->USBRxData;
- }
- if ((pbBuf != NULL) && (i < iMaxLen)) {
- pbBuf[i] = dwData & 0xFF;
- }
- dwData >>= 8;
- }
-
- // make sure RD_EN is clear
- USB->USBCtrl = 0;
-
- // select endpoint and clear buffer
- USBHwCmd(CMD_EP_SELECT | idx);
- USBHwCmd(CMD_EP_CLEAR_BUFFER);
-
- return dwLen;
-}
-
-
-/**
- Sets the 'configured' state.
-
- All registered endpoints are 'realised' and enabled, and the
- 'configured' bit is set in the device status register.
-
- @param [in] fConfigured If TRUE, configure device, else unconfigure
- */
-void USBHwConfigDevice(BOOL fConfigured)
-{
- // set configured bit
- USBHwCmdWrite(CMD_DEV_CONFIG, fConfigured ? CONF_DEVICE : 0);
-}
-
-
-/**
- USB interrupt handler
-
- @todo Get all 11 bits of frame number instead of just 8
-
- Endpoint interrupts are mapped to the slow interrupt
- */
-void USBHwISR(void)
-{
- unsigned long dwStatus;
- unsigned long dwIntBit;
- unsigned char bEPStat, bDevStat, bStat;
- int i;
- unsigned short wFrame;
-
- // handle device interrupts
- dwStatus = USB->USBDevIntSt;
-
- // frame interrupt
- if (dwStatus & FRAME) {
- // clear int
- USB->USBDevIntClr = FRAME;
- // call handler
- if (_pfnFrameHandler != NULL) {
- wFrame = USBHwCmdRead(CMD_DEV_READ_CUR_FRAME_NR);
- _pfnFrameHandler(wFrame);
- }
- }
-
- // device status interrupt
- if (dwStatus & DEV_STAT) {
- /* Clear DEV_STAT interrupt before reading DEV_STAT register.
- This prevents corrupted device status reads, see
- LPC2148 User manual revision 2, 25 july 2006.
- */
- USB->USBDevIntClr = DEV_STAT;
- bDevStat = USBHwCmdRead(CMD_DEV_STATUS);
- if (bDevStat & (CON_CH | SUS_CH | RST)) {
- // convert device status into something HW independent
- bStat = ((bDevStat & CON) ? DEV_STATUS_CONNECT : 0) |
- ((bDevStat & SUS) ? DEV_STATUS_SUSPEND : 0) |
- ((bDevStat & RST) ? DEV_STATUS_RESET : 0);
- // call handler
- if (_pfnDevIntHandler != NULL) {
- _pfnDevIntHandler(bStat);
- }
- }
- }
-
- // endpoint interrupt
- if (dwStatus & EP_SLOW) {
- // clear EP_SLOW
- USB->USBDevIntClr = EP_SLOW;
- // check all endpoints
- for (i = 0; i < 32; i++) {
- dwIntBit = (1 << i);
- if (USB->USBEpIntSt & dwIntBit) {
- // clear int (and retrieve status)
- USB->USBEpIntClr = dwIntBit;
- Wait4DevInt(CDFULL);
- bEPStat = USB->USBCmdData;
- // convert EP pipe stat into something HW independent
- bStat = ((bEPStat & EPSTAT_FE) ? EP_STATUS_DATA : 0) |
- ((bEPStat & EPSTAT_ST) ? EP_STATUS_STALLED : 0) |
- ((bEPStat & EPSTAT_STP) ? EP_STATUS_SETUP : 0) |
- ((bEPStat & EPSTAT_EPN) ? EP_STATUS_NACKED : 0) |
- ((bEPStat & EPSTAT_PO) ? EP_STATUS_ERROR : 0);
- // call handler
- if (_apfnEPIntHandlers[i / 2] != NULL) {
- _apfnEPIntHandlers[i / 2](IDX2EP(i), bStat);
- }
- }
- }
- }
-}
-
-
-
-/**
- Initialises the USB hardware
-
-
- @return TRUE if the hardware was successfully initialised
- */
-BOOL USBHwInit(void)
-{
- // P2.9 -> USB_CONNECT
- PINCON->PINSEL4 &= ~0x000C0000;
- PINCON->PINSEL4 |= 0x00040000;
-
- // P1.18 -> USB_UP_LED
- // P1.30 -> VBUS
- PINCON->PINSEL3 &= ~0x30000030;
- PINCON->PINSEL3 |= 0x20000010;
-
- // P0.29 -> USB_D+
- // P0.30 -> USB_D-
- PINCON->PINSEL1 &= ~0x3C000000;
- PINCON->PINSEL1 |= 0x14000000;
-
- // enable PUSB
- SC->PCONP |= (1 << 31);
-
- USB->OTGClkCtrl = 0x12; /* Dev clock, AHB clock enable */
- while ((USB->OTGClkSt & 0x12) != 0x12);
-
- // disable/clear all interrupts for now
- USB->USBDevIntEn = 0;
- USB->USBDevIntClr = 0xFFFFFFFF;
- USB->USBDevIntPri = 0;
-
- USB->USBEpIntEn = 0;
- USB->USBEpIntClr = 0xFFFFFFFF;
- USB->USBEpIntPri = 0;
-
- // by default, only ACKs generate interrupts
- USBHwNakIntEnable(0);
-
- return TRUE;
-}
-
diff --git a/Demo/CORTEX_LPC1768_IAR/LPCUSB/usbhw_lpc.c.bak b/Demo/CORTEX_LPC1768_IAR/LPCUSB/usbhw_lpc.c.bak
deleted file mode 100644
index 29de3de..0000000
--- a/Demo/CORTEX_LPC1768_IAR/LPCUSB/usbhw_lpc.c.bak
+++ /dev/null
@@ -1,521 +0,0 @@
-/*
- LPCUSB, an USB device driver for LPC microcontrollers
- Copyright (C) 2006 Bertrik Sikken (bertrik@sikken.nl)
-
- Redistribution and use in source and binary forms, with or without
- modification, are permitted provided that the following conditions are met:
-
- 1. Redistributions of source code must retain the above copyright
- notice, this list of conditions and the following disclaimer.
- 2. Redistributions in binary form must reproduce the above copyright
- notice, this list of conditions and the following disclaimer in the
- documentation and/or other materials provided with the distribution.
- 3. The name of the author may not be used to endorse or promote products
- derived from this software without specific prior written permission.
-
- THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
- IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
- OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
- IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
- INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-*/
-
-
-/** @file
- USB hardware layer
- */
-
-
-#include "usbdebug.h"
-#include "usbhw_lpc.h"
-#include "usbapi.h"
-
-/** Installed device interrupt handler */
-static TFnDevIntHandler *_pfnDevIntHandler = NULL;
-/** Installed endpoint interrupt handlers */
-static TFnEPIntHandler *_apfnEPIntHandlers[16];
-/** Installed frame interrupt handlers */
-static TFnFrameHandler *_pfnFrameHandler = NULL;
-
-/** convert from endpoint address to endpoint index */
-#define EP2IDX(bEP) ((((bEP)&0xF)<<1)|(((bEP)&0x80)>>7))
-/** convert from endpoint index to endpoint address */
-#define IDX2EP(idx) ((((idx)<<7)&0x80)|(((idx)>>1)&0xF))
-
-
-
-/**
- Local function to wait for a device interrupt (and clear it)
-
- @param [in] dwIntr Bitmask of interrupts to wait for
- */
-static void Wait4DevInt(unsigned long dwIntr)
-{
- // wait for specific interrupt
- while ((USB->USBDevIntSt & dwIntr) != dwIntr);
- // clear the interrupt bits
- USB->USBDevIntClr = dwIntr;
-}
-
-
-/**
- Local function to send a command to the USB protocol engine
-
- @param [in] bCmd Command to send
- */
-static void USBHwCmd(unsigned char bCmd)
-{
- // clear CDFULL/CCEMTY
- USB->USBDevIntClr = CDFULL | CCEMTY;
- // write command code
- USB->USBCmdCode = 0x00000500 | (bCmd << 16);
- Wait4DevInt(CCEMTY);
-}
-
-
-/**
- Local function to send a command + data to the USB protocol engine
-
- @param [in] bCmd Command to send
- @param [in] bData Data to send
- */
-static void USBHwCmdWrite(unsigned char bCmd, unsigned short bData)
-{
- // write command code
- USBHwCmd(bCmd);
-
- // write command data
- USB->USBCmdCode = 0x00000100 | (bData << 16);
- Wait4DevInt(CCEMTY);
-}
-
-
-/**
- Local function to send a command to the USB protocol engine and read data
-
- @param [in] bCmd Command to send
-
- @return the data
- */
-static unsigned char USBHwCmdRead(unsigned char bCmd)
-{
- // write command code
- USBHwCmd(bCmd);
-
- // get data
- USB->USBCmdCode = 0x00000200 | (bCmd << 16);
- Wait4DevInt(CDFULL);
- return USB->USBCmdData;
-}
-
-
-/**
- 'Realizes' an endpoint, meaning that buffer space is reserved for
- it. An endpoint needs to be realised before it can be used.
-
- From experiments, it appears that a USB reset causes USBReEP to
- re-initialise to 3 (= just the control endpoints).
- However, a USB bus reset does not disturb the USBMaxPSize settings.
-
- @param [in] idx Endpoint index
- @param [in] wMaxPSize Maximum packet size for this endpoint
- */
-static void USBHwEPRealize(int idx, unsigned short wMaxPSize)
-{
- USB->USBReEP |= (1 << idx);
- USB->USBEpInd = idx;
- USB->USBMaxPSize = wMaxPSize;
- Wait4DevInt(EP_RLZED);
-}
-
-
-/**
- Enables or disables an endpoint
-
- @param [in] idx Endpoint index
- @param [in] fEnable TRUE to enable, FALSE to disable
- */
-static void USBHwEPEnable(int idx, BOOL fEnable)
-{
- USBHwCmdWrite(CMD_EP_SET_STATUS | idx, fEnable ? 0 : EP_DA);
-}
-
-
-/**
- Configures an endpoint and enables it
-
- @param [in] bEP Endpoint number
- @param [in] wMaxPacketSize Maximum packet size for this EP
- */
-void USBHwEPConfig(unsigned char bEP, unsigned short wMaxPacketSize)
-{
- int idx;
-
- idx = EP2IDX(bEP);
-
- // realise EP
- USBHwEPRealize(idx, wMaxPacketSize);
-
- // enable EP
- USBHwEPEnable(idx, TRUE);
-}
-
-
-/**
- Registers an endpoint event callback
-
- @param [in] bEP Endpoint number
- @param [in] pfnHandler Callback function
- */
-void USBHwRegisterEPIntHandler(unsigned char bEP, TFnEPIntHandler *pfnHandler)
-{
- int idx;
-
- idx = EP2IDX(bEP);
-
- ASSERT(idx<32);
-
- /* add handler to list of EP handlers */
- _apfnEPIntHandlers[idx / 2] = pfnHandler;
-
- /* enable EP interrupt */
- USB->USBEpIntEn |= (1 << idx);
- USB->USBDevIntEn |= EP_SLOW;
-
- DBG("Registered handler for EP 0x%x\n", bEP);
-}
-
-
-/**
- Registers an device status callback
-
- @param [in] pfnHandler Callback function
- */
-void USBHwRegisterDevIntHandler(TFnDevIntHandler *pfnHandler)
-{
- _pfnDevIntHandler = pfnHandler;
-
- // enable device interrupt
- USB->USBDevIntEn |= DEV_STAT;
-
- DBG("Registered handler for device status\n");
-}
-
-
-/**
- Registers the frame callback
-
- @param [in] pfnHandler Callback function
- */
-void USBHwRegisterFrameHandler(TFnFrameHandler *pfnHandler)
-{
- _pfnFrameHandler = pfnHandler;
-
- // enable device interrupt
- USB->USBDevIntEn |= FRAME;
-
- DBG("Registered handler for frame\n");
-}
-
-
-/**
- Sets the USB address.
-
- @param [in] bAddr Device address to set
- */
-void USBHwSetAddress(unsigned char bAddr)
-{
- USBHwCmdWrite(CMD_DEV_SET_ADDRESS, DEV_EN | bAddr);
-}
-
-
-/**
- Connects or disconnects from the USB bus
-
- @param [in] fConnect If TRUE, connect, otherwise disconnect
- */
-void USBHwConnect(BOOL fConnect)
-{
- USBHwCmdWrite(CMD_DEV_STATUS, fConnect ? CON : 0);
-}
-
-
-/**
- Enables interrupt on NAK condition
-
- For IN endpoints a NAK is generated when the host wants to read data
- from the device, but none is available in the endpoint buffer.
- For OUT endpoints a NAK is generated when the host wants to write data
- to the device, but the endpoint buffer is still full.
-
- The endpoint interrupt handlers can distinguish regular (ACK) interrupts
- from NAK interrupt by checking the bits in their bEPStatus argument.
-
- @param [in] bIntBits Bitmap indicating which NAK interrupts to enable
- */
-void USBHwNakIntEnable(unsigned char bIntBits)
-{
- USBHwCmdWrite(CMD_DEV_SET_MODE, bIntBits);
-}
-
-
-/**
- Gets the status from a specific endpoint.
-
- @param [in] bEP Endpoint number
- @return Endpoint status byte (containing EP_STATUS_xxx bits)
- */
-unsigned char USBHwEPGetStatus(unsigned char bEP)
-{
- int idx = EP2IDX(bEP);
-
- return USBHwCmdRead(CMD_EP_SELECT | idx);
-}
-
-
-/**
- Sets the stalled property of an endpoint
-
- @param [in] bEP Endpoint number
- @param [in] fStall TRUE to stall, FALSE to unstall
- */
-void USBHwEPStall(unsigned char bEP, BOOL fStall)
-{
- int idx = EP2IDX(bEP);
-
- USBHwCmdWrite(CMD_EP_SET_STATUS | idx, fStall ? EP_ST : 0);
-}
-
-
-/**
- Writes data to an endpoint buffer
-
- @param [in] bEP Endpoint number
- @param [in] pbBuf Endpoint data
- @param [in] iLen Number of bytes to write
-
- @return TRUE if the data was successfully written or <0 in case of error.
-*/
-int USBHwEPWrite(unsigned char bEP, unsigned char *pbBuf, int iLen)
-{
- int idx;
-
- idx = EP2IDX(bEP);
-
- // set write enable for specific endpoint
- USB->USBCtrl = WR_EN | ((bEP & 0xF) << 2);
-
- // set packet length
- USB->USBTxPLen = iLen;
-
- // write data
- while (USB->USBCtrl & WR_EN) {
- USB->USBTxData = (pbBuf[3] << 24) | (pbBuf[2] << 16) | (pbBuf[1] << 8) | pbBuf[0];
- pbBuf += 4;
- }
-
- // select endpoint and validate buffer
- USBHwCmd(CMD_EP_SELECT | idx);
- USBHwCmd(CMD_EP_VALIDATE_BUFFER);
-
- return iLen;
-}
-
-
-/**
- Reads data from an endpoint buffer
-
- @param [in] bEP Endpoint number
- @param [in] pbBuf Endpoint data
- @param [in] iMaxLen Maximum number of bytes to read
-
- @return the number of bytes available in the EP (possibly more than iMaxLen),
- or <0 in case of error.
- */
-int USBHwEPRead(unsigned char bEP, unsigned char *pbBuf, int iMaxLen)
-{
- unsigned int i, idx;
- unsigned long dwData, dwLen;
-
- idx = EP2IDX(bEP);
-
- // set read enable bit for specific endpoint
- USB->USBCtrl = RD_EN | ((bEP & 0xF) << 2);
-
- // wait for PKT_RDY
- do {
- dwLen = USB->USBRxPLen;
- } while ((dwLen & PKT_RDY) == 0);
-
- // packet valid?
- if ((dwLen & DV) == 0) {
- return -1;
- }
-
- // get length
- dwLen &= PKT_LNGTH_MASK;
-
- // get data
- dwData = 0;
- for (i = 0; i < dwLen; i++) {
- if ((i % 4) == 0) {
- dwData = USB->USBRxData;
- }
- if ((pbBuf != NULL) && (i < iMaxLen)) {
- pbBuf[i] = dwData & 0xFF;
- }
- dwData >>= 8;
- }
-
- // make sure RD_EN is clear
- USB->USBCtrl = 0;
-
- // select endpoint and clear buffer
- USBHwCmd(CMD_EP_SELECT | idx);
- USBHwCmd(CMD_EP_CLEAR_BUFFER);
-
- return dwLen;
-}
-
-
-/**
- Sets the 'configured' state.
-
- All registered endpoints are 'realised' and enabled, and the
- 'configured' bit is set in the device status register.
-
- @param [in] fConfigured If TRUE, configure device, else unconfigure
- */
-void USBHwConfigDevice(BOOL fConfigured)
-{
- // set configured bit
- USBHwCmdWrite(CMD_DEV_CONFIG, fConfigured ? CONF_DEVICE : 0);
-}
-
-
-/**
- USB interrupt handler
-
- @todo Get all 11 bits of frame number instead of just 8
-
- Endpoint interrupts are mapped to the slow interrupt
- */
-void USBHwISR(void)
-{
- unsigned long dwStatus;
- unsigned long dwIntBit;
- unsigned char bEPStat, bDevStat, bStat;
- int i;
- unsigned short wFrame;
-
- // handle device interrupts
- dwStatus = USB->USBDevIntSt;
-
- // frame interrupt
- if (dwStatus & FRAME) {
- // clear int
- USB->USBDevIntClr = FRAME;
- // call handler
- if (_pfnFrameHandler != NULL) {
- wFrame = USBHwCmdRead(CMD_DEV_READ_CUR_FRAME_NR);
- _pfnFrameHandler(wFrame);
- }
- }
-
- // device status interrupt
- if (dwStatus & DEV_STAT) {
- /* Clear DEV_STAT interrupt before reading DEV_STAT register.
- This prevents corrupted device status reads, see
- LPC2148 User manual revision 2, 25 july 2006.
- */
- USB->USBDevIntClr = DEV_STAT;
- bDevStat = USBHwCmdRead(CMD_DEV_STATUS);
- if (bDevStat & (CON_CH | SUS_CH | RST)) {
- // convert device status into something HW independent
- bStat = ((bDevStat & CON) ? DEV_STATUS_CONNECT : 0) |
- ((bDevStat & SUS) ? DEV_STATUS_SUSPEND : 0) |
- ((bDevStat & RST) ? DEV_STATUS_RESET : 0);
- // call handler
- if (_pfnDevIntHandler != NULL) {
- _pfnDevIntHandler(bStat);
- }
- }
- }
-
- // endpoint interrupt
- if (dwStatus & EP_SLOW) {
- // clear EP_SLOW
- USB->USBDevIntClr = EP_SLOW;
- // check all endpoints
- for (i = 0; i < 32; i++) {
- dwIntBit = (1 << i);
- if (USB->USBEpIntSt & dwIntBit) {
- // clear int (and retrieve status)
- USB->USBEpIntClr = dwIntBit;
- Wait4DevInt(CDFULL);
- bEPStat = USB->USBCmdData;
- // convert EP pipe stat into something HW independent
- bStat = ((bEPStat & EPSTAT_FE) ? EP_STATUS_DATA : 0) |
- ((bEPStat & EPSTAT_ST) ? EP_STATUS_STALLED : 0) |
- ((bEPStat & EPSTAT_STP) ? EP_STATUS_SETUP : 0) |
- ((bEPStat & EPSTAT_EPN) ? EP_STATUS_NACKED : 0) |
- ((bEPStat & EPSTAT_PO) ? EP_STATUS_ERROR : 0);
- // call handler
- if (_apfnEPIntHandlers[i / 2] != NULL) {
- _apfnEPIntHandlers[i / 2](IDX2EP(i), bStat);
- }
- }
- }
- }
-}
-
-
-
-/**
- Initialises the USB hardware
-
-
- @return TRUE if the hardware was successfully initialised
- */
-BOOL USBHwInit(void)
-{
- // P2.9 -> USB_CONNECT
- PINCON->PINSEL4 &= ~0x000C0000;
- PINCON->PINSEL4 |= 0x00040000;
-
- // P1.18 -> USB_UP_LED
- // P1.30 -> VBUS
- PINCON->PINSEL3 &= ~0x30000030;
- PINCON->PINSEL3 |= 0x20000010;
-
- // P0.29 -> USB_D+
- // P0.30 -> USB_D-
- PINCON->PINSEL1 &= ~0x3C000000;
- PINCON->PINSEL1 |= 0x14000000;
-
- // enable PUSB
- SC->PCONP |= (1 << 31);
-
- USB->OTGClkCtrl = 0x12; /* Dev clock, AHB clock enable */
- while ((USB->OTGClkSt & 0x12) != 0x12);
-
- // disable/clear all interrupts for now
- USB->USBDevIntEn = 0;
- USB->USBDevIntClr = 0xFFFFFFFF;
- USB->USBDevIntPri = 0;
-
- USB->USBEpIntEn = 0;
- USB->USBEpIntClr = 0xFFFFFFFF;
- USB->USBEpIntPri = 0;
-
- // by default, only ACKs generate interrupts
- USBHwNakIntEnable(0);
-
- return TRUE;
-}
-
