Kristen Fernandez
Changed file extensions from .c to .cpp
Fork of
USBMIDI
by 
Simon Ford
Revision 3:1c9f95100210, committed 2016-04-29
- Comitter:
- KrissyHam
- Date:
- Fri Apr 29 01:46:03 2016 +0000
- Parent:
- 2:10d694d6ccdc
- Commit message:
- Changed file extensions from .c to .cpp
Changed in this revision
diff -r 10d694d6ccdc -r 1c9f95100210 usbcore.c
--- a/usbcore.c Sun Feb 20 13:12:22 2011 +0000
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,278 +0,0 @@
-/* @license The MIT License
- * Copyright (c) 2011 mux, simon
- *
- * 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.
- */
-
-#include "usbcore.h"
-
-#include "mbed.h"
-
-// Serial Interface Engine
-#define SIE_SET_ADDR (0xD0)
-#define SIE_SET_STATUS (0xFE)
-#define SIE_GET_STATUS (0xFE)
-#define SIE_SET_MODE (0xF3)
-#define SIE_CLR_BUFFER (0xF2)
-#define SIE_VAL_BUFFER (0xFA)
-#define SIE_SEL_EP (0x00)
-#define SIE_SEL_CLR_EP (0x28)
-#define SIE_SET_EP_STAT (0x40)
-#define SIE_READ_ERROR (0xFB)
-#define SIE_CONFIG_DEVICE (0xD8)
-
-// EP status
-#define EP_FE (1<<0) // Full/Empty
-#define EP_ST (1<<1) // Stalled endpoint
-#define EP_STP (1<<2) // Setup packet
-#define EP_PO (1<<3) // packet overwritten
-#define EP_EPN (1<<4) // EP NAKed
-#define B_1_FULL (1<<5) // buffer 1 status
-#define B_2_FULL (1<<6) // buffer 2 status
-
-// USB device interrupts
-#define DEV_FRAME (1<<0)
-#define EP_FAST (1<<1)
-#define EP_SLOW (1<<2)
-#define DEV_STAT (1<<3)
-#define RxENDPKT (1<<6)
-#define TxENDPKT (1<<7)
-#define EP_RLZED (1<<8)
-#define CCEMPTY (0x10)
-#define CDFULL (0x20)
-
-// USB device status bits
-#define STAT_CON (1<<0)
-#define STAT_CON_CH (1<<1)
-#define STAT_SUS (1<<2)
-#define STAT_SUS_CH (1<<3)
-#define STAT_RST (1<<4)
-
-// end points interrupts
-#define EP0RX_INT (1<<0)
-#define EP0TX_INT (1<<1)
-#define EP1RX_INT (1<<2)
-#define EP1TX_INT (1<<3)
-#define EP2RX_INT (1<<4)
-#define EP2TX_INT (1<<5)
-
-// USB control register
-#define RD_EN (1<<0)
-#define WR_EN (1<<1)
-#define PKT_RDY (1<<11)
-#define LOG_ENDPOINT(ep) ((ep>>1)<<2)
-
-// configure state
-static int configured = 0;
-
-// USB interrupt handler
-void USB_IRQHandler(void);
-
-// Serial Interface Engine functions
-void sie_command(uint32_t code) {
- LPC_USB->USBDevIntClr = CCEMPTY; // clear CCEMPTY
- LPC_USB->USBCmdCode = ((code<<16)|(0x05<<8)); // CMD_PHASE=Command
- while (!(LPC_USB->USBDevIntSt & CCEMPTY)); // wait for CCEMPTY
-}
-
-void sie_write(uint32_t data) {
- LPC_USB->USBDevIntClr = CCEMPTY; // clear CCEMPTY
- LPC_USB->USBCmdCode = ((data<<16)|(0x01<<8)); // CMD_PHASE=Write
- while (!(LPC_USB->USBDevIntSt & CCEMPTY)); // wait for CCEMPTY
-}
-
-uint8_t sie_read(uint32_t code) {
- LPC_USB->USBDevIntClr = CDFULL; // clear CCEMPTY
- LPC_USB->USBCmdCode = ((code<<16)|(0x02<<8)); // CMD_PHASE=Read
- while (!(LPC_USB->USBDevIntSt & CDFULL)); // wait for CDFULL
- return (uint8_t) LPC_USB->USBCmdData;
-
-}
-
-// end point functions
-void ep_realize(uint8_t ep, uint32_t size) {
- LPC_USB->USBDevIntClr = EP_RLZED; // clear EP_RLZED
- LPC_USB->USBReEp |= (1<<ep);
- LPC_USB->USBEpInd = ep; // set USBEpIn
- LPC_USB->USBMaxPSize = size; // writing to EPn pointed to by USBEpInd
- while (!(LPC_USB->USBDevIntSt & EP_RLZED)); // wait for EP_RLZED
- LPC_USB->USBDevIntClr = EP_RLZED; // clear EP_RLZED
-}
-
-void ep_stall(uint8_t ep) {
- sie_command(SIE_SET_EP_STAT+ep);
- sie_write(1);
-}
-
-void ep_unstall(uint8_t ep) {
- sie_command(SIE_SET_EP_STAT+ep);
- sie_write(0);
-}
-
-// initializes a pointer to the endpoint buffer
-uint8_t ep_select(uint8_t ep) {
- sie_command(SIE_SEL_EP+ep);
- return sie_read(SIE_SEL_EP+ep);
-}
-
-uint8_t ep_select_clear(uint8_t ep) {
- LPC_USB->USBEpIntClr |= ep; // clear ep interrupt
- while (!(LPC_USB->USBDevIntSt & CDFULL)); // wait for cmd finish
- return LPC_USB->USBCmdData;
-}
-
-int ep_readable(uint8_t ep) {
- uint8_t st = ep_select(ep);
- return (st & EP_FE);
-}
-
-int ep_writable(uint8_t ep) {
- uint8_t st = ep_select(ep);
- return !(st & EP_FE);
-}
-
-int ep_read(uint8_t ep, uint8_t *tbuf) {
- uint32_t *buf = (uint32_t*) tbuf;
- LPC_USB->USBCtrl = LOG_ENDPOINT(ep)|RD_EN; // RD_EN bit and LOG_ENDPOINT
- while (!(LPC_USB->USBRxPLen & PKT_RDY)); // wait for packet to be fetched
- int len = LPC_USB->USBRxPLen & 0x3FF; // read and mask packet length
- while (!(LPC_USB->USBDevIntSt & RxENDPKT)) {
- *buf++ = LPC_USB->USBRxData;
- }
- LPC_USB->USBCtrl = 0;
- LPC_USB->USBDevIntClr |= RxENDPKT;
- sie_command(SIE_SEL_EP+ep); // select endpoint
- sie_command(SIE_CLR_BUFFER); // clear RX buffer
- return len;
-}
-
-void ep_write(uint8_t ep, uint8_t *tbuf, uint32_t len) {
- uint32_t *buf = (uint32_t*) tbuf;
- LPC_USB->USBCtrl = LOG_ENDPOINT(ep)|WR_EN; // RD_EN bit and LOG_ENDPOINT
- LPC_USB->USBTxPLen |= (len & 0x3FF); // write and mask packet length
- while (!(LPC_USB->USBDevIntSt & TxENDPKT)) {
- LPC_USB->USBTxData = *buf++;
- }
- LPC_USB->USBCtrl = 0;
- LPC_USB->USBDevIntClr |= TxENDPKT;
- sie_command(SIE_SEL_EP+ep); // select endpoint
- sie_command(SIE_VAL_BUFFER); // validate TX buffer
-}
-
-// USB device controller initialization
-void usb_init() {
- // USB D+/D- pinsel functions
- LPC_PINCON->PINSEL1 &= 0xC3FFFFFF;
- LPC_PINCON->PINSEL1 |= 0x14000000;
-
-#if USB_UP_DEBUG
- // USB_UP_LED pinsel function
- LPC_PINCON->PINSEL3 &= 0xFFFFFFCF;
- LPC_PINCON->PINSEL3 |= 0x00000010;
-#endif
-
- // USB connect pinsel function
- LPC_PINCON->PINSEL4 &= 0xFFFCFFFF;
- LPC_PINCON->PINSEL4 |= 0x00040000;
- LPC_SC->PCONP |= (1UL<<31); // enable the USB controller
- LPC_USB->USBClkCtrl |= ((1<<1)|(1<<4)); // enable the AHB and DEV clocks
- while ((LPC_USB->USBClkSt & 0x12) != 0x12); // wait for the clocks to init
-
- NVIC_SetVector(USB_IRQn, (uint32_t)&USB_IRQHandler);
- NVIC_EnableIRQ(USB_IRQn); // enable USB interrupts
-
- usb_reset();
- usb_set_address(0); // default address
-}
-
-void usb_reset() {
- ep_realize(EP0, MAX_EP0_PSIZE);
- ep_realize(EP1, MAX_EP0_PSIZE);
- LPC_USB->USBEpIntClr = 0xFFFFFFFF; // clear end points interrupts
- LPC_USB->USBEpIntEn = 0xFFFFFFFF; // enable end points interrupts
- LPC_USB->USBEpIntPri = 0x0; // route to EP_SLOW
- LPC_USB->USBDevIntClr = 0xFFFFFFFF; // clear USB device interrupts
- LPC_USB->USBDevIntEn = (EP_SLOW|DEV_STAT); // enable USB device interrupts
-}
-
-void usb_configure(uint8_t conf) {
- sie_command(SIE_CONFIG_DEVICE);
- sie_write(conf);
- configured = 1;
-}
-
-int usb_configured() {
- return configured;
-}
-
-void usb_set_address(uint8_t addr) {
- sie_command(SIE_SET_ADDR);
- sie_write(addr|0x80); // DEV_EN = 1
-}
-
-uint8_t usb_get_status() {
- sie_command(SIE_GET_STATUS);
- return sie_read(SIE_GET_STATUS);
-}
-
-void usb_connect() {
- sie_command(SIE_GET_STATUS); // read current status
- uint8_t st = sie_read(SIE_GET_STATUS);
-
- sie_command(SIE_SET_STATUS); // set STAT_CON bit
- sie_write(st|STAT_CON);
-}
-
-void USB_IRQHandler(void) {
- if (LPC_USB->USBDevIntSt & DEV_STAT) { // DEV_STAT interrupt
- LPC_USB->USBDevIntClr |= DEV_STAT;
- if (usb_get_status() & STAT_RST) { // bus reset
- usb_reset();
- }
- return;
- }
-
- if (LPC_USB->USBDevIntSt & EP_SLOW) { // EP_SLOW interrupt
- if (LPC_USB->USBEpIntSt & EP0RX_INT) {
- if (ep_select_clear(EP0RX_INT) & EP_STP) { // setup transfer
- ep0_setup();
- } else {
- ep0_out();
- }
- }
-
- if (LPC_USB->USBEpIntSt & EP0TX_INT) {
- ep_select_clear(EP0TX_INT);
- ep0_in();
- }
-
- if (LPC_USB->USBEpIntSt & EP2RX_INT) {
- ep_select_clear(EP2TX_INT);
- ep2_out();
- }
-
- if (LPC_USB->USBEpIntSt & EP2TX_INT) {
- ep_select_clear(EP2TX_INT);
- ep2_in();
- }
-
- // EP_SLOW should be cleared after clearing EPs interrupts
- LPC_USB->USBDevIntClr |= EP_SLOW;
- }
-}
diff -r 10d694d6ccdc -r 1c9f95100210 usbcore.cpp
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/usbcore.cpp Fri Apr 29 01:46:03 2016 +0000
@@ -0,0 +1,278 @@
+/* @license The MIT License
+ * Copyright (c) 2011 mux, simon
+ *
+ * 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.
+ */
+
+#include "usbcore.h"
+
+#include "mbed.h"
+
+// Serial Interface Engine
+#define SIE_SET_ADDR (0xD0)
+#define SIE_SET_STATUS (0xFE)
+#define SIE_GET_STATUS (0xFE)
+#define SIE_SET_MODE (0xF3)
+#define SIE_CLR_BUFFER (0xF2)
+#define SIE_VAL_BUFFER (0xFA)
+#define SIE_SEL_EP (0x00)
+#define SIE_SEL_CLR_EP (0x28)
+#define SIE_SET_EP_STAT (0x40)
+#define SIE_READ_ERROR (0xFB)
+#define SIE_CONFIG_DEVICE (0xD8)
+
+// EP status
+#define EP_FE (1<<0) // Full/Empty
+#define EP_ST (1<<1) // Stalled endpoint
+#define EP_STP (1<<2) // Setup packet
+#define EP_PO (1<<3) // packet overwritten
+#define EP_EPN (1<<4) // EP NAKed
+#define B_1_FULL (1<<5) // buffer 1 status
+#define B_2_FULL (1<<6) // buffer 2 status
+
+// USB device interrupts
+#define DEV_FRAME (1<<0)
+#define EP_FAST (1<<1)
+#define EP_SLOW (1<<2)
+#define DEV_STAT (1<<3)
+#define RxENDPKT (1<<6)
+#define TxENDPKT (1<<7)
+#define EP_RLZED (1<<8)
+#define CCEMPTY (0x10)
+#define CDFULL (0x20)
+
+// USB device status bits
+#define STAT_CON (1<<0)
+#define STAT_CON_CH (1<<1)
+#define STAT_SUS (1<<2)
+#define STAT_SUS_CH (1<<3)
+#define STAT_RST (1<<4)
+
+// end points interrupts
+#define EP0RX_INT (1<<0)
+#define EP0TX_INT (1<<1)
+#define EP1RX_INT (1<<2)
+#define EP1TX_INT (1<<3)
+#define EP2RX_INT (1<<4)
+#define EP2TX_INT (1<<5)
+
+// USB control register
+#define RD_EN (1<<0)
+#define WR_EN (1<<1)
+#define PKT_RDY (1<<11)
+#define LOG_ENDPOINT(ep) ((ep>>1)<<2)
+
+// configure state
+static int configured = 0;
+
+// USB interrupt handler
+void USB_IRQHandler(void);
+
+// Serial Interface Engine functions
+void sie_command(uint32_t code) {
+ LPC_USB->USBDevIntClr = CCEMPTY; // clear CCEMPTY
+ LPC_USB->USBCmdCode = ((code<<16)|(0x05<<8)); // CMD_PHASE=Command
+ while (!(LPC_USB->USBDevIntSt & CCEMPTY)); // wait for CCEMPTY
+}
+
+void sie_write(uint32_t data) {
+ LPC_USB->USBDevIntClr = CCEMPTY; // clear CCEMPTY
+ LPC_USB->USBCmdCode = ((data<<16)|(0x01<<8)); // CMD_PHASE=Write
+ while (!(LPC_USB->USBDevIntSt & CCEMPTY)); // wait for CCEMPTY
+}
+
+uint8_t sie_read(uint32_t code) {
+ LPC_USB->USBDevIntClr = CDFULL; // clear CCEMPTY
+ LPC_USB->USBCmdCode = ((code<<16)|(0x02<<8)); // CMD_PHASE=Read
+ while (!(LPC_USB->USBDevIntSt & CDFULL)); // wait for CDFULL
+ return (uint8_t) LPC_USB->USBCmdData;
+
+}
+
+// end point functions
+void ep_realize(uint8_t ep, uint32_t size) {
+ LPC_USB->USBDevIntClr = EP_RLZED; // clear EP_RLZED
+ LPC_USB->USBReEp |= (1<<ep);
+ LPC_USB->USBEpInd = ep; // set USBEpIn
+ LPC_USB->USBMaxPSize = size; // writing to EPn pointed to by USBEpInd
+ while (!(LPC_USB->USBDevIntSt & EP_RLZED)); // wait for EP_RLZED
+ LPC_USB->USBDevIntClr = EP_RLZED; // clear EP_RLZED
+}
+
+void ep_stall(uint8_t ep) {
+ sie_command(SIE_SET_EP_STAT+ep);
+ sie_write(1);
+}
+
+void ep_unstall(uint8_t ep) {
+ sie_command(SIE_SET_EP_STAT+ep);
+ sie_write(0);
+}
+
+// initializes a pointer to the endpoint buffer
+uint8_t ep_select(uint8_t ep) {
+ sie_command(SIE_SEL_EP+ep);
+ return sie_read(SIE_SEL_EP+ep);
+}
+
+uint8_t ep_select_clear(uint8_t ep) {
+ LPC_USB->USBEpIntClr |= ep; // clear ep interrupt
+ while (!(LPC_USB->USBDevIntSt & CDFULL)); // wait for cmd finish
+ return LPC_USB->USBCmdData;
+}
+
+int ep_readable(uint8_t ep) {
+ uint8_t st = ep_select(ep);
+ return (st & EP_FE);
+}
+
+int ep_writable(uint8_t ep) {
+ uint8_t st = ep_select(ep);
+ return !(st & EP_FE);
+}
+
+int ep_read(uint8_t ep, uint8_t *tbuf) {
+ uint32_t *buf = (uint32_t*) tbuf;
+ LPC_USB->USBCtrl = LOG_ENDPOINT(ep)|RD_EN; // RD_EN bit and LOG_ENDPOINT
+ while (!(LPC_USB->USBRxPLen & PKT_RDY)); // wait for packet to be fetched
+ int len = LPC_USB->USBRxPLen & 0x3FF; // read and mask packet length
+ while (!(LPC_USB->USBDevIntSt & RxENDPKT)) {
+ *buf++ = LPC_USB->USBRxData;
+ }
+ LPC_USB->USBCtrl = 0;
+ LPC_USB->USBDevIntClr |= RxENDPKT;
+ sie_command(SIE_SEL_EP+ep); // select endpoint
+ sie_command(SIE_CLR_BUFFER); // clear RX buffer
+ return len;
+}
+
+void ep_write(uint8_t ep, uint8_t *tbuf, uint32_t len) {
+ uint32_t *buf = (uint32_t*) tbuf;
+ LPC_USB->USBCtrl = LOG_ENDPOINT(ep)|WR_EN; // RD_EN bit and LOG_ENDPOINT
+ LPC_USB->USBTxPLen |= (len & 0x3FF); // write and mask packet length
+ while (!(LPC_USB->USBDevIntSt & TxENDPKT)) {
+ LPC_USB->USBTxData = *buf++;
+ }
+ LPC_USB->USBCtrl = 0;
+ LPC_USB->USBDevIntClr |= TxENDPKT;
+ sie_command(SIE_SEL_EP+ep); // select endpoint
+ sie_command(SIE_VAL_BUFFER); // validate TX buffer
+}
+
+// USB device controller initialization
+void usb_init() {
+ // USB D+/D- pinsel functions
+ LPC_PINCON->PINSEL1 &= 0xC3FFFFFF;
+ LPC_PINCON->PINSEL1 |= 0x14000000;
+
+#if USB_UP_DEBUG
+ // USB_UP_LED pinsel function
+ LPC_PINCON->PINSEL3 &= 0xFFFFFFCF;
+ LPC_PINCON->PINSEL3 |= 0x00000010;
+#endif
+
+ // USB connect pinsel function
+ LPC_PINCON->PINSEL4 &= 0xFFFCFFFF;
+ LPC_PINCON->PINSEL4 |= 0x00040000;
+ LPC_SC->PCONP |= (1UL<<31); // enable the USB controller
+ LPC_USB->USBClkCtrl |= ((1<<1)|(1<<4)); // enable the AHB and DEV clocks
+ while ((LPC_USB->USBClkSt & 0x12) != 0x12); // wait for the clocks to init
+
+ NVIC_SetVector(USB_IRQn, (uint32_t)&USB_IRQHandler);
+ NVIC_EnableIRQ(USB_IRQn); // enable USB interrupts
+
+ usb_reset();
+ usb_set_address(0); // default address
+}
+
+void usb_reset() {
+ ep_realize(EP0, MAX_EP0_PSIZE);
+ ep_realize(EP1, MAX_EP0_PSIZE);
+ LPC_USB->USBEpIntClr = 0xFFFFFFFF; // clear end points interrupts
+ LPC_USB->USBEpIntEn = 0xFFFFFFFF; // enable end points interrupts
+ LPC_USB->USBEpIntPri = 0x0; // route to EP_SLOW
+ LPC_USB->USBDevIntClr = 0xFFFFFFFF; // clear USB device interrupts
+ LPC_USB->USBDevIntEn = (EP_SLOW|DEV_STAT); // enable USB device interrupts
+}
+
+void usb_configure(uint8_t conf) {
+ sie_command(SIE_CONFIG_DEVICE);
+ sie_write(conf);
+ configured = 1;
+}
+
+int usb_configured() {
+ return configured;
+}
+
+void usb_set_address(uint8_t addr) {
+ sie_command(SIE_SET_ADDR);
+ sie_write(addr|0x80); // DEV_EN = 1
+}
+
+uint8_t usb_get_status() {
+ sie_command(SIE_GET_STATUS);
+ return sie_read(SIE_GET_STATUS);
+}
+
+void usb_connect() {
+ sie_command(SIE_GET_STATUS); // read current status
+ uint8_t st = sie_read(SIE_GET_STATUS);
+
+ sie_command(SIE_SET_STATUS); // set STAT_CON bit
+ sie_write(st|STAT_CON);
+}
+
+void USB_IRQHandler(void) {
+ if (LPC_USB->USBDevIntSt & DEV_STAT) { // DEV_STAT interrupt
+ LPC_USB->USBDevIntClr |= DEV_STAT;
+ if (usb_get_status() & STAT_RST) { // bus reset
+ usb_reset();
+ }
+ return;
+ }
+
+ if (LPC_USB->USBDevIntSt & EP_SLOW) { // EP_SLOW interrupt
+ if (LPC_USB->USBEpIntSt & EP0RX_INT) {
+ if (ep_select_clear(EP0RX_INT) & EP_STP) { // setup transfer
+ ep0_setup();
+ } else {
+ ep0_out();
+ }
+ }
+
+ if (LPC_USB->USBEpIntSt & EP0TX_INT) {
+ ep_select_clear(EP0TX_INT);
+ ep0_in();
+ }
+
+ if (LPC_USB->USBEpIntSt & EP2RX_INT) {
+ ep_select_clear(EP2TX_INT);
+ ep2_out();
+ }
+
+ if (LPC_USB->USBEpIntSt & EP2TX_INT) {
+ ep_select_clear(EP2TX_INT);
+ ep2_in();
+ }
+
+ // EP_SLOW should be cleared after clearing EPs interrupts
+ LPC_USB->USBDevIntClr |= EP_SLOW;
+ }
+}
diff -r 10d694d6ccdc -r 1c9f95100210 usbdevice.c
--- a/usbdevice.c Sun Feb 20 13:12:22 2011 +0000
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,181 +0,0 @@
-/* @license The MIT License
- * Copyright (c) 2011 mux, simon
- *
- * 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.
- */
-
-#include "usbcore.h"
-#include "mbed.h"
-
-#define STANDARD_DEVICE_REQUEST (0x00)
-#define STANDARD_INTERFACE_REQUEST (0x01)
-#define STANDARD_ENDPOINT_REQUEST (0x02)
-#define CLASS_DEVICE_REQUEST (0x20)
-#define CLASS_INTERFACE_REQUEST (0x21)
-#define CLASS_ENDPOINT_REQUEST (0x22)
-#define VENDOR_DEVICE_REQUEST (0x40)
-#define VENDOR_INTERFACE_REQUEST (0x41)
-#define VENDOR_ENDPOINT_REQUEST (0x42)
-#define GET_STATUS (0x00)
-#define CLEAR_FEATURE (0x01)
-#define SET_FEATURE (0x03)
-#define SET_ADDRESS (0x05)
-#define GET_DESCRIPTOR (0x06)
-#define SET_DESCRIPTOR (0x07)
-#define GET_CONFIGURATION (0x08)
-#define SET_CONFIGURATION (0x09)
-#define DEVICE_DESCRIPTOR (0x01)
-#define CONFIG_DESCRIPTOR (0x02)
-#define STRING_DESCRIPTOR (0x03)
-#define INTERFACE_DESCRIPTOR (0x04)
-#define ENDPOINT_DESCRIPTOR (0x05)
-#define QUALIFIER_DESCRIPTOR (0x06)
-#define unpack(x) (x & 0xFF),((x >> 8) & 0xFF)
-
-// setup packet
-struct {
- uint8_t bmRequestType;
- uint8_t bRequest;
- uint16_t wValue;
- uint16_t wIndex;
- uint16_t wLength;
-} __attribute__((packed)) setup = {0};
-
-// data packet
-struct {
- uint8_t *data;
- uint8_t size;
- uint8_t sent;
-} transfer = {0};
-
-uint8_t device_descriptor[] = {
- 0x12, // Descriptor size in bytes (12h)
- DEVICE_DESCRIPTOR, // The constant DEVICE (01h)
- unpack(0x0200), // US2B specification release number (BCD)
- 0x00, // Class code
- 0x00, // Subclass code
- 0x00, // Protocol Code
- MAX_EP0_PSIZE, // Maximum packet size for endpoint zero
- unpack(0x0763), // Vendor ID
- unpack(0x0198), // Product ID
- unpack(0x0001), // Device release number (BCD)
- 0x00, // Index of string descriptor for the manufacturer
- 0x00, // Index of string descriptor for the product
- 0x00, // Index of string descriptor for the serial number
- 0x01, // Number of possible configurations
-};
-
-uint8_t config_descriptor[]={
- 0x09, 0x02, 0x65, 0x00, 0x02, 0x01, 0x00, 0xc0, 0x50, // configuration descriptor
- // The Audio Interface Collection
- 0x09, 0x04, 0x00, 0x00, 0x00, 0x01, 0x01, 0x00, 0x00, // Standard AC Interface Descriptor
- 0x09, 0x24, 0x01, 0x00, 0x01, 0x09, 0x00, 0x01, 0x01, // Class-specific AC Interface Descriptor
- 0x09, 0x04, 0x01, 0x00, 0x02, 0x01, 0x03, 0x00, 0x00, // MIDIStreaming Interface Descriptors
- 0x07, 0x24, 0x01, 0x00, 0x01, 0x41, 0x00, // Class-Specific MS Interface Header Descriptor
-
- // MIDI IN JACKS
- 0x06, 0x24, 0x02, 0x01, 0x01, 0x00,
- 0x06, 0x24, 0x02, 0x02, 0x02, 0x00,
-
- // MIDI OUT JACKS
- 0x09, 0x24, 0x03, 0x01, 0x03, 0x01, 0x02, 0x01, 0x00,
- 0x09, 0x24, 0x03, 0x02, 0x06, 0x01, 0x01, 0x01, 0x00,
-
- // OUT endpoint descriptor
- 0x09, 0x05, 0x02, 0x02, 0x40, 0x00, 0x00, 0x00, 0x00,
- 0x05, 0x25, 0x01, 0x01, 0x01,
-
- // IN endpoint descriptor
- 0x09, 0x05, 0x82, 0x02, 0x40, 0x00, 0x00, 0x00, 0x00,
- 0x05, 0x25, 0x01, 0x01, 0x03,
-};
-
-void ep0_in();
-
-void data_in_stage(uint8_t *desc, uint8_t length) {
- transfer.sent = 0;
- transfer.data = desc;
- transfer.size = length;
- ep0_in();
-}
-
-void status_in_stage() {
- ep_write(EP1, 0, 0); // ZLEP for status stage
-}
-
-void ep0_setup() {
- ep_read(EP0,(uint8_t*) &setup);
-
- switch (setup.bmRequestType & 0x7f) { // mask direction
- case STANDARD_DEVICE_REQUEST:
- switch (setup.bRequest) {
- case GET_DESCRIPTOR:
- switch ((setup.wValue>>8)) {
- case DEVICE_DESCRIPTOR: // device descriptor request
- case QUALIFIER_DESCRIPTOR: // device qualifier descriptor
- data_in_stage(device_descriptor, sizeof(device_descriptor));
- break;
- case CONFIG_DESCRIPTOR: // configuration descriptor
- data_in_stage(config_descriptor, setup.wLength);
- break;
- case STRING_DESCRIPTOR:
- break;
- default:
- break;
- }
- break;
- case SET_ADDRESS:
- usb_set_address((uint8_t) (setup.wValue & 0xFF));
- status_in_stage();
- break;
- case SET_CONFIGURATION:
- if (!setup.wValue) {
- break;
- }
- ep_realize(EP4, MAX_EPn_PSIZE);
- ep_realize(EP5, MAX_EPn_PSIZE);
- status_in_stage();
- usb_configure(1);
- break;
- default:
- break;
- }
- break;
- default:
- break;
- }
-}
-
-void ep0_in() {
- if ((setup.bmRequestType & 0x80) && transfer.size) { // device to host
- if (transfer.size > MAX_EP0_PSIZE) {
- transfer.sent = MAX_EP0_PSIZE;
- } else {
- transfer.sent = transfer.size;
- }
- ep_write(EP1, transfer.data, transfer.sent);
- transfer.data += transfer.sent;
- transfer.size -= transfer.sent;
- }
-}
-
-void ep0_out() {
- uint8_t buf[64];
- ep_read(EP0, buf);
-}
diff -r 10d694d6ccdc -r 1c9f95100210 usbdevice.cpp
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/usbdevice.cpp Fri Apr 29 01:46:03 2016 +0000
@@ -0,0 +1,181 @@
+/* @license The MIT License
+ * Copyright (c) 2011 mux, simon
+ *
+ * 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.
+ */
+
+#include "usbcore.h"
+#include "mbed.h"
+
+#define STANDARD_DEVICE_REQUEST (0x00)
+#define STANDARD_INTERFACE_REQUEST (0x01)
+#define STANDARD_ENDPOINT_REQUEST (0x02)
+#define CLASS_DEVICE_REQUEST (0x20)
+#define CLASS_INTERFACE_REQUEST (0x21)
+#define CLASS_ENDPOINT_REQUEST (0x22)
+#define VENDOR_DEVICE_REQUEST (0x40)
+#define VENDOR_INTERFACE_REQUEST (0x41)
+#define VENDOR_ENDPOINT_REQUEST (0x42)
+#define GET_STATUS (0x00)
+#define CLEAR_FEATURE (0x01)
+#define SET_FEATURE (0x03)
+#define SET_ADDRESS (0x05)
+#define GET_DESCRIPTOR (0x06)
+#define SET_DESCRIPTOR (0x07)
+#define GET_CONFIGURATION (0x08)
+#define SET_CONFIGURATION (0x09)
+#define DEVICE_DESCRIPTOR (0x01)
+#define CONFIG_DESCRIPTOR (0x02)
+#define STRING_DESCRIPTOR (0x03)
+#define INTERFACE_DESCRIPTOR (0x04)
+#define ENDPOINT_DESCRIPTOR (0x05)
+#define QUALIFIER_DESCRIPTOR (0x06)
+#define unpack(x) (x & 0xFF),((x >> 8) & 0xFF)
+
+// setup packet
+struct {
+ uint8_t bmRequestType;
+ uint8_t bRequest;
+ uint16_t wValue;
+ uint16_t wIndex;
+ uint16_t wLength;
+} __attribute__((packed)) setup = {0};
+
+// data packet
+struct {
+ uint8_t *data;
+ uint8_t size;
+ uint8_t sent;
+} transfer = {0};
+
+uint8_t device_descriptor[] = {
+ 0x12, // Descriptor size in bytes (12h)
+ DEVICE_DESCRIPTOR, // The constant DEVICE (01h)
+ unpack(0x0200), // US2B specification release number (BCD)
+ 0x00, // Class code
+ 0x00, // Subclass code
+ 0x00, // Protocol Code
+ MAX_EP0_PSIZE, // Maximum packet size for endpoint zero
+ unpack(0x0763), // Vendor ID
+ unpack(0x0198), // Product ID
+ unpack(0x0001), // Device release number (BCD)
+ 0x00, // Index of string descriptor for the manufacturer
+ 0x00, // Index of string descriptor for the product
+ 0x00, // Index of string descriptor for the serial number
+ 0x01, // Number of possible configurations
+};
+
+uint8_t config_descriptor[]={
+ 0x09, 0x02, 0x65, 0x00, 0x02, 0x01, 0x00, 0xc0, 0x50, // configuration descriptor
+ // The Audio Interface Collection
+ 0x09, 0x04, 0x00, 0x00, 0x00, 0x01, 0x01, 0x00, 0x00, // Standard AC Interface Descriptor
+ 0x09, 0x24, 0x01, 0x00, 0x01, 0x09, 0x00, 0x01, 0x01, // Class-specific AC Interface Descriptor
+ 0x09, 0x04, 0x01, 0x00, 0x02, 0x01, 0x03, 0x00, 0x00, // MIDIStreaming Interface Descriptors
+ 0x07, 0x24, 0x01, 0x00, 0x01, 0x41, 0x00, // Class-Specific MS Interface Header Descriptor
+
+ // MIDI IN JACKS
+ 0x06, 0x24, 0x02, 0x01, 0x01, 0x00,
+ 0x06, 0x24, 0x02, 0x02, 0x02, 0x00,
+
+ // MIDI OUT JACKS
+ 0x09, 0x24, 0x03, 0x01, 0x03, 0x01, 0x02, 0x01, 0x00,
+ 0x09, 0x24, 0x03, 0x02, 0x06, 0x01, 0x01, 0x01, 0x00,
+
+ // OUT endpoint descriptor
+ 0x09, 0x05, 0x02, 0x02, 0x40, 0x00, 0x00, 0x00, 0x00,
+ 0x05, 0x25, 0x01, 0x01, 0x01,
+
+ // IN endpoint descriptor
+ 0x09, 0x05, 0x82, 0x02, 0x40, 0x00, 0x00, 0x00, 0x00,
+ 0x05, 0x25, 0x01, 0x01, 0x03,
+};
+
+void ep0_in();
+
+void data_in_stage(uint8_t *desc, uint8_t length) {
+ transfer.sent = 0;
+ transfer.data = desc;
+ transfer.size = length;
+ ep0_in();
+}
+
+void status_in_stage() {
+ ep_write(EP1, 0, 0); // ZLEP for status stage
+}
+
+void ep0_setup() {
+ ep_read(EP0,(uint8_t*) &setup);
+
+ switch (setup.bmRequestType & 0x7f) { // mask direction
+ case STANDARD_DEVICE_REQUEST:
+ switch (setup.bRequest) {
+ case GET_DESCRIPTOR:
+ switch ((setup.wValue>>8)) {
+ case DEVICE_DESCRIPTOR: // device descriptor request
+ case QUALIFIER_DESCRIPTOR: // device qualifier descriptor
+ data_in_stage(device_descriptor, sizeof(device_descriptor));
+ break;
+ case CONFIG_DESCRIPTOR: // configuration descriptor
+ data_in_stage(config_descriptor, setup.wLength);
+ break;
+ case STRING_DESCRIPTOR:
+ break;
+ default:
+ break;
+ }
+ break;
+ case SET_ADDRESS:
+ usb_set_address((uint8_t) (setup.wValue & 0xFF));
+ status_in_stage();
+ break;
+ case SET_CONFIGURATION:
+ if (!setup.wValue) {
+ break;
+ }
+ ep_realize(EP4, MAX_EPn_PSIZE);
+ ep_realize(EP5, MAX_EPn_PSIZE);
+ status_in_stage();
+ usb_configure(1);
+ break;
+ default:
+ break;
+ }
+ break;
+ default:
+ break;
+ }
+}
+
+void ep0_in() {
+ if ((setup.bmRequestType & 0x80) && transfer.size) { // device to host
+ if (transfer.size > MAX_EP0_PSIZE) {
+ transfer.sent = MAX_EP0_PSIZE;
+ } else {
+ transfer.sent = transfer.size;
+ }
+ ep_write(EP1, transfer.data, transfer.sent);
+ transfer.data += transfer.sent;
+ transfer.size -= transfer.sent;
+ }
+}
+
+void ep0_out() {
+ uint8_t buf[64];
+ ep_read(EP0, buf);
+}