make keyboard device work with lpc1347

3 files changed, 289 insertions, 1 deletions

diff --git a/tinyusb/common/common.h b/tinyusb/common/common.h
index de87ca1a8..1405b7605 100644
--- a/tinyusb/common/common.h
+++ b/tinyusb/common/common.h
@@ -51,7 +51,7 @@
 #include "errors.h"
 
 //#if ( defined CFG_PRINTF_UART || defined CFG_PRINTF_USBCDC || defined CFG_PRINTF_DEBUG )
-#if 1
+#if 1 // TODO refractor ASSERT
   #define PRINTF_LOCATION(mess)	printf("Assert: %s at line %d: %s\n", __func__, __LINE__, mess)
 #else
   #define PRINTF_LOCATION(mess)
diff --git a/tinyusb/common/fifo.c b/tinyusb/common/fifo.c
new file mode 100644
index 000000000..1a8d3cce5
--- /dev/null
+++ b/tinyusb/common/fifo.c
@@ -0,0 +1,212 @@
+/*
+ * fifo.c
+ *
+ *  Created on: Nov 27, 2012
+ *      Author: hathach ([email protected])
+ */
+
+/*
+ * Software License Agreement (BSD License)
+ * Copyright (c) 2012, hathach ([email protected])
+ * All rights reserved.
+ *
+ * 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.
+ *
+ * This file is part of the tiny usb stack.
+ */
+
+#include "fifo.h"
+
+/**************************************************************************/
+/*!
+    @brief Disables the IRQ specified in the FIFO's 'irq' field
+           to prevent reads/write issues with interrupts
+
+    @param[in]  f
+                Pointer to the FIFO that should be protected
+*/
+/**************************************************************************/
+static inline void mutex_lock (fifo_t* f)
+{
+  if (f->irq > 0)
+    NVIC_DisableIRQ(f->irq);
+}
+
+/**************************************************************************/
+/*!
+    @brief Re-enables the IRQ specified in the FIFO's 'irq' field
+
+    @param[in]  f
+                Pointer to the FIFO that should be protected
+*/
+/**************************************************************************/
+static inline void mutex_unlock (fifo_t* f)
+{
+  if (f->irq > 0)
+    NVIC_EnableIRQ(f->irq);
+}
+
+/**************************************************************************/
+/*!
+    @brief Initialises the FIFO buffer
+
+    @param[in]  f
+                Pointer to the fifo_t object to intiialize
+    @param[in]  buffer
+                Pointer to the buffer's location in memory
+    @param[in]  size
+                The buffer size in bytes
+    @param[in]  overwritable
+                Set to TRUE is the FIFO is overwritable when the FIFO
+                is full (the first element will be overwritten)
+    @param[in]  irq
+                The IRQ number to disable for MUTEX protection.
+                Set the -1 if not required.
+*/
+/**************************************************************************/
+void fifo_init(fifo_t* f, uint8_t* buffer, uint16_t size, bool overwritable, IRQn_Type irq)
+{
+  f->buf = buffer;
+  f->size = size;
+  f->rd_ptr = f->wr_ptr = f->len = 0;
+  f->overwritable = overwritable;
+  f->irq = irq;
+}
+
+/**************************************************************************/
+/*!
+    @brief Read one byte out of the RX buffer.
+
+    This function will return the byte located at the array index of the
+    read pointer, and then increment the read pointer index.  If the read
+    pointer exceeds the maximum buffer size, it will roll over to zero.
+
+    @param[in]  f
+                Pointer to the FIFO buffer to manipulate
+    @param[in]  data
+                Pointer to the place holder for data read from the buffer
+
+    @returns TRUE if the queue is not empty
+*/
+/**************************************************************************/
+bool fifo_read(fifo_t* f, uint8_t *data)
+{
+  if (fifo_isEmpty(f))
+    return false;
+
+  mutex_lock(f);
+
+  *data = f->buf[f->rd_ptr];
+  f->rd_ptr = (f->rd_ptr + 1) % f->size;
+  f->len--;
+
+  mutex_unlock(f);
+
+  return true;
+}
+
+/**************************************************************************/
+/*!
+    @brief Read a byte array from FIFO
+
+    @param[in]  f
+                Pointer to the FIFO buffer to manipulate
+    @param[in]  rx
+                Pointer to the place holder for data read from the buffer
+    @param[in]  maxlen
+                The maximum number of bytes to read from the FIFO
+
+    @returns The actual number of bytes read from the FIFO
+ */
+/**************************************************************************/
+uint16_t fifo_readArray(fifo_t* f, uint8_t* rx, uint16_t maxlen)
+{
+  uint16_t len = 0;
+  
+  while ( len < maxlen && fifo_read(f, rx) )
+  {
+    len++;
+    rx++;
+  }
+  
+  return len;
+}
+
+/**************************************************************************/
+/*!
+    @brief Write one byte into the RX buffer.
+
+    This function will write one byte into the array index specified by
+    the write pointer and increment the write index. If the write index
+    exceeds the max buffer size, then it will roll over to zero.
+
+    @param[in]  f
+                Pointer to the FIFO buffer to manipulate
+    @param[in]  data
+                The byte to add to the FIFO
+
+    @returns TRUE if the data was written to the FIFO (overwrittable
+             FIFO will always return TRUE)
+*/
+/**************************************************************************/
+bool fifo_write(fifo_t* f, uint8_t data)
+{
+  if ( fifo_isFull(f) && f->overwritable == false)
+      return false;
+
+  mutex_lock(f);
+
+  f->buf[f->wr_ptr] = data;
+  f->wr_ptr = (f->wr_ptr + 1) % f->size;
+
+  if (fifo_isFull(f))
+  {
+    f->rd_ptr = f->wr_ptr; // keep the full state (rd == wr && len = size)
+  }else
+  {
+    f->len++;
+  }
+
+  mutex_unlock(f);
+
+  return true;
+}
+
+/**************************************************************************/
+/*!
+    @brief Clear the fifo read and write pointers and set length to zero
+
+    @param[in]  f
+                Pointer to the FIFO buffer to manipulate
+*/
+/**************************************************************************/
+void fifo_clear(fifo_t *f)
+{
+  mutex_lock(f);
+
+  f->rd_ptr = 0;
+  f->wr_ptr = 0;
+  f->len = 0;
+
+  mutex_unlock(f);
+}
diff --git a/tinyusb/common/fifo.h b/tinyusb/common/fifo.h
new file mode 100644
index 000000000..1019c8bde
--- /dev/null
+++ b/tinyusb/common/fifo.h
@@ -0,0 +1,76 @@
+/*
+ * fifo.h
+ *
+ *  Created on: Nov 27, 2012
+ *      Author: hathach ([email protected])
+ */
+
+/*
+ * Software License Agreement (BSD License)
+ * Copyright (c) 2012, hathach ([email protected])
+ * All rights reserved.
+ *
+ * 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.
+ *
+ * This file is part of the tiny usb stack.
+ */
+
+#ifndef _TUSB_FIFO_H_
+#define _TUSB_FIFO_H_
+
+#include "common/common.h"
+
+/* ToDo: Describe each field in fifo_t */
+typedef struct _fifo_t
+{
+  uint8_t* buf;
+  uint16_t size;
+  volatile uint16_t len;
+  volatile uint16_t wr_ptr;
+  volatile uint16_t rd_ptr;
+  bool overwritable;
+  IRQn_Type irq;
+} fifo_t;
+
+void fifo_init(fifo_t* f, uint8_t* buffer, uint16_t size, bool overwritable, IRQn_Type irq);
+bool fifo_write(fifo_t* f, uint8_t data);
+bool fifo_read(fifo_t* f, uint8_t *data);
+uint16_t fifo_readArray(fifo_t* f, uint8_t * rx, uint16_t maxlen);
+void fifo_clear(fifo_t*);
+
+static inline bool fifo_isEmpty(fifo_t* f)
+{
+  return (f->len == 0);
+}
+
+static inline bool fifo_isFull(fifo_t* f)
+{
+  return (f->len == f->size);
+}
+
+static inline uint16_t fifo_getLength(fifo_t* f)
+{
+  return f->len;
+}
+
+#endif /* _TUSB_FIFO_H_ */