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-rw-r--r--src/example_main.cpp34
-rw-r--r--src/example_main_bk.cpp74
-rw-r--r--src/lib/bootVect.h52
-rw-r--r--src/lib/usb.c24
-rw-r--r--src/lib/usb.h28
-rw-r--r--src/wiring/comm/HardwareUsb.cpp96
-rw-r--r--src/wiring/comm/HardwareUsb.h48
7 files changed, 309 insertions, 47 deletions
diff --git a/src/example_main.cpp b/src/example_main.cpp
index 8c90b7d..7202c66 100644
--- a/src/example_main.cpp
+++ b/src/example_main.cpp
@@ -1,19 +1,13 @@
#include "wiring.h"
#include "HardwareSerial.h"
+#include "HardwareUsb.h"
#include "math.h"
#include "usb.h"
int ledPin = 13;
uint8_t bytes_in;
-BootVectTable* mapleVect;
-
-void usb_tx_cb(void) {
-}
-
-void usb_rx_cb(void) {
- bytes_in = usb_serialGetRecvLen();
-}
+HardwareUsb Usb;
void setup()
{
@@ -27,30 +21,28 @@ void setup()
Serial2.println("setup end");
- mapleVect = (BootVectTable*)(BOOTLOADER_VECT_TABLE);
- mapleVect->serial_tx_cb = usb_tx_cb;
- mapleVect->serial_rx_cb = usb_rx_cb;
+ Usb.begin();
+ Usb.flush();
}
-
int toggle = 0;
const char* testMsg = "hello world!\n";
-
+const char x = 'a';
static inline void loop() {
toggle ^= 1;
digitalWrite(ledPin, toggle);
- delay(1000);
- usb_serialWriteStr("blink...\n");
+ delay(50);
- if (bytes_in > 0) {
- int i;
- for (i=0;i<bytes_in;i++) {
- usb_serialWriteStr("b,");
+ uint8_t numBytes=Usb.available();
+
+ if (numBytes > 0) {
+ while (numBytes-->0) {
+ Usb.print(Usb.read());
}
- bytes_in = 0;
- usb_serialWriteStr("\n");
}
+
+ Usb.flush();
}
diff --git a/src/example_main_bk.cpp b/src/example_main_bk.cpp
new file mode 100644
index 0000000..ce1b1c1
--- /dev/null
+++ b/src/example_main_bk.cpp
@@ -0,0 +1,74 @@
+#include "wiring.h"
+#include "HardwareSerial.h"
+#include "HardwareUsb.h"
+#include "math.h"
+#include "usb.h"
+
+int ledPin = 13;
+uint8_t bytes_in;
+
+BootVectTable* mapleVect;
+
+void usb_tx_cb(void) {
+}
+
+void usb_rx_cb(void) {
+ bytes_in = usb_serialGetRecvLen();
+}
+
+void setup()
+{
+ pinMode(ledPin, OUTPUT);
+ Serial2.begin(9600);
+ Serial2.println("setup start");
+
+ pinMode(6, PWM);
+ pwmWrite(6, 0x8000);
+ pinMode(7, OUTPUT);
+
+ Serial2.println("setup end");
+
+ mapleVect = (BootVectTable*)(BOOTLOADER_VECT_TABLE);
+ mapleVect->serial_tx_cb = usb_tx_cb;
+ mapleVect->serial_rx_cb = usb_rx_cb;
+}
+
+
+int toggle = 0;
+
+const char* testMsg = "hello world!\n";
+
+static inline void loop() {
+ toggle ^= 1;
+ digitalWrite(ledPin, toggle);
+ delay(1000);
+ usb_serialWriteStr("blink...\n");
+
+ if (bytes_in > 0) {
+ int i;
+ for (i=0;i<bytes_in;i++) {
+ usb_serialWriteStr("b,");
+ }
+ bytes_in = 0;
+ usb_serialWriteStr("\n");
+ }
+}
+
+
+int main(void) {
+ init();
+ setup();
+
+ while (1) {
+ loop();
+ }
+ return 0;
+}
+
+/* Required for C++ hackery */
+/* TODO: This really shouldn't go here... move it later
+ * */
+extern "C" void __cxa_pure_virtual(void) {
+ while(1)
+ ;
+}
diff --git a/src/lib/bootVect.h b/src/lib/bootVect.h
new file mode 100644
index 0000000..5bcb42b
--- /dev/null
+++ b/src/lib/bootVect.h
@@ -0,0 +1,52 @@
+/* *****************************************************************************
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ *
+ * ****************************************************************************/
+
+/**
+ * @file HardwareUsb.h
+ *
+ * @brief Defines the maple boot vector structure
+ */
+
+#ifndef _BOOTVECT_H_
+#define _BOOTVECT_H_
+
+#define BOOTLOADER_VECT_TABLE ((uint32_t*)0x20000000)
+
+#ifdef __cplusplus
+extern "C"{
+#endif
+
+typedef void (*FuncPtr)(void);
+
+typedef struct {
+ FuncPtr serial_tx_cb;
+ FuncPtr serial_rx_cb;
+ FuncPtr serial_linecoding_cb;
+ uint32_t* serial_count_in;
+ uint32_t* serial_count_out;
+ uint8_t* serial_buffer_out;
+ void* linecoding;
+ uint8_t major_rev;
+ uint8_t minor_rev;
+ void* usb_device_ptr;
+ void* usb_local_obj_ptr;
+} BootVectTable;
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // _BOOTVECT_H_
diff --git a/src/lib/usb.c b/src/lib/usb.c
index 17c8c8d..8c312f8 100644
--- a/src/lib/usb.c
+++ b/src/lib/usb.c
@@ -1,8 +1,6 @@
#include <inttypes.h>
#include "usb.h"
-BootVectTable* bootVect = ((BootVectTable*) BOOTLOADER_VECT_TABLE);
-
void usb_lpIRQHandler(void)
{
typedef void (*funcPtr)(void);
@@ -60,8 +58,26 @@ void usb_serialWriteStr(const char* outStr) {
}
+void usb_serialWriteChar(unsigned char ch) {
+ BootVectTable *bootVector = ((BootVectTable*)BOOTLOADER_VECT_TABLE);
+
+ delay(1);
+
+ *(bootVector->serial_count_in) = 1;
+ usb_userToPMABufferCopy((u8*)(&ch),USB_SERIAL_ENDP_TXADDR,1);
+ _SetEPTxCount(USB_SERIAL_ENDP_TX,1);
+ _SetEPTxValid(USB_SERIAL_ENDP_TX);
+
+}
+
uint8_t usb_serialGetRecvLen() {
- uint8_t count_out = _GetEPRxCount(USB_SERIAL_ENDP_RX);
- _SetEPRxValid(USB_SERIAL_ENDP_RX);
+ uint8_t count_out =_GetEPRxCount(USB_SERIAL_ENDP_RX);
return count_out;
}
+
+void usb_copyRecvBuffer(unsigned char* dest, uint8_t len) {
+ ASSERT(len < USB_SERIAL_BUF_SIZE);
+ usb_PMAToUserBufferCopy((u8*)(dest),USB_SERIAL_ENDP_RXADDR,len);
+ _SetEPRxValid(USB_SERIAL_ENDP_RX);
+}
+
diff --git a/src/lib/usb.h b/src/lib/usb.h
index 3a7e92b..3b7a971 100644
--- a/src/lib/usb.h
+++ b/src/lib/usb.h
@@ -5,10 +5,7 @@
#include "util.h"
#include "cortexm3_macro.h"
#include "usb_regs.h"
-
-#ifdef __cplusplus
-extern "C" {
-#endif
+#include "bootVect.h"
#define USB_ISR_ADDR (0x08000090)
#define USB_SERIAL_ENDP_TXADDR ((uint32_t) 0xC0)
@@ -17,30 +14,17 @@ extern "C" {
#define USB_SERIAL_ENDP_RX ((uint16_t) 0x3)
#define USB_SERIAL_BUF_SIZE (0x40)
-#define BOOTLOADER_VECT_TABLE ((uint32_t*)0x20000000)
-
-typedef void (*FuncPtr)(void);
-
-typedef struct {
- FuncPtr serial_tx_cb;
- FuncPtr serial_rx_cb;
- FuncPtr serial_linecoding_cb;
- uint32_t* serial_count_in;
- uint32_t* serial_count_out;
- uint8_t* serial_buffer_out;
- void* linecoding;
- uint8_t major_rev;
- uint8_t minor_rev;
- void* usb_device_ptr;
-} BootVectTable;
-
-extern BootVectTable* bootVect;
+#ifdef __cplusplus
+extern "C" {
+#endif
void usb_lpIRQHandler(void);
void usb_userToPMABufferCopy(u8 *pbUsrBuf,u16 wPMABufAddr,u16 wNBytes);
void usb_PMAToUserBufferCopy(u8 *pbUsrBuf,u16 wPMABufAddr,u16 wNBytes);
void usb_serialWriteStr(const char *outStr);
+void usb_serialWriteChar(unsigned char ch);
uint8_t usb_serialGetRecvLen();
+void usb_copyRecvBuffer(unsigned char* dest, uint8_t len);
#ifdef __cplusplus
} // extern "C"
diff --git a/src/wiring/comm/HardwareUsb.cpp b/src/wiring/comm/HardwareUsb.cpp
new file mode 100644
index 0000000..269a68f
--- /dev/null
+++ b/src/wiring/comm/HardwareUsb.cpp
@@ -0,0 +1,96 @@
+/* *****************************************************************************
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ *
+ * ****************************************************************************/
+
+/**
+ * @file HardwareUsb.cpp
+ *
+ * @brief Wiring like serial api to USB virtual COM
+ */
+
+#include "wiring.h"
+#include "HardwareUsb.h"
+#include "bootVect.h"
+#include "usb.h"
+
+HardwareUsb::HardwareUsb(void) {
+ mapleVectTable = (BootVectTable*)(BOOTLOADER_VECT_TABLE);
+ mapleVectTable->serial_tx_cb = usb_tx_cb;
+ mapleVectTable->serial_rx_cb = usb_rx_cb;
+ mapleVectTable->usb_local_obj_ptr = this;
+ rx_buffer_offset_in = 0;
+ rx_buffer_offset_out = 0;
+}
+
+uint8_t HardwareUsb::read(void) {
+ uint8_t outVal = rx_buffer[rx_buffer_offset_out++];
+
+#if 1
+ if (rx_buffer_offset_out == rx_buffer_offset_in) {
+ flush();
+ }
+#endif
+
+ return outVal;
+}
+
+uint8_t HardwareUsb::available(void) {
+ ASSERT(rx_buffer_offset_out >= 0);
+ // return rx_buffer_offset+1;
+ // return usb_serialGetRecvLen();
+ return rx_buffer_offset_in - rx_buffer_offset_out;
+}
+
+void HardwareUsb::flush(void) {
+ rx_buffer_offset_in = 0;
+ rx_buffer_offset_out = 0;
+}
+
+void HardwareUsb::write(unsigned char ch) {
+ usb_serialWriteChar(ch);
+}
+
+void HardwareUsb::begin(void) {
+ /* placeholder for usb<->uart linking */
+}
+
+void HardwareUsb::usb_rx_cb(void) {
+ BootVectTable *vectTable = (BootVectTable*)(BOOTLOADER_VECT_TABLE);
+ HardwareUsb *thisPtr = (HardwareUsb*) vectTable->usb_local_obj_ptr;
+
+ uint8_t numBytes = usb_serialGetRecvLen();
+
+#if 0
+ /* ONE-SHOT-TO-READ Version (buffer cleared on next recv interrupt */
+ usb_copyRecvBuffer(thisPtr->rx_buffer,numBytes);
+ thisPtr->rx_buffer_offset_in = numBytes;
+ thisPtr->rx_buffer_offset_out = 0;
+#else
+ /* FIFO DISCARD OVERFLOW VERSION */
+ if ((thisPtr->rx_buffer_offset_in + numBytes) > (USB_SERIAL_BUF_SIZE)) {
+ numBytes = USB_SERIAL_BUF_SIZE - thisPtr->rx_buffer_offset_in;
+ }
+
+ if (numBytes > 0) {
+ ASSERT(thisPtr->rx_buffer_offset_in <= USB_SERIAL_BUF_SIZE);
+ usb_copyRecvBuffer(&(thisPtr->rx_buffer[thisPtr->rx_buffer_offset_in]),numBytes);
+ thisPtr->rx_buffer_offset_in += numBytes;
+ }
+#endif
+}
+
+void HardwareUsb::usb_tx_cb(void) {
+ /* placeholder for when serial dumps exceed buflen */
+}
diff --git a/src/wiring/comm/HardwareUsb.h b/src/wiring/comm/HardwareUsb.h
new file mode 100644
index 0000000..b8733c1
--- /dev/null
+++ b/src/wiring/comm/HardwareUsb.h
@@ -0,0 +1,48 @@
+/* *****************************************************************************
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ *
+ * ****************************************************************************/
+
+/**
+ * @file HardwareUsb.h
+ *
+ * @brief Wiring like serial api to USB virtual COM
+ */
+
+#ifndef _HARDWAREUSB_H_
+#define _HARDWAREUSB_H_
+
+#include "Print.h"
+#include "bootVect.h"
+#include "usb.h"
+
+class HardwareUsb : public Print {
+ private:
+ BootVectTable* mapleVectTable;
+ static void usb_rx_cb(void);
+ static void usb_tx_cb(void);
+ unsigned char rx_buffer[USB_SERIAL_BUF_SIZE];
+ int8_t rx_buffer_offset_out;
+ int8_t rx_buffer_offset_in;
+ public:
+ HardwareUsb(void);
+ void begin();
+ uint8_t available(void);
+ uint8_t read(void);
+ void flush(void);
+ virtual void write(unsigned char);
+ using Print::write;
+};
+
+#endif //_HARDWAREUSB_H
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