4ff7d6cb62
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@2486 42af7a65-404d-4744-a932-0658087f49c3
104 lines
5.3 KiB
C
Executable File
104 lines
5.3 KiB
C
Executable File
/****************************************************************************************
|
|
* arch/arm/src/sam3u/sam3u_pdc.h
|
|
*
|
|
* Copyright (C) 2009 Gregory Nutt. All rights reserved.
|
|
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
|
|
*
|
|
* 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. Neither the name NuttX nor the names of its contributors may be
|
|
* used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
* "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
|
|
* COPYRIGHT OWNER OR CONTRIBUTORS 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.
|
|
*
|
|
****************************************************************************************/
|
|
|
|
#ifndef __ARCH_ARM_SRC_SAM3U_SAM3U_PDC_H
|
|
#define __ARCH_ARM_SRC_SAM3U_SAM3U_PDC_H
|
|
|
|
/****************************************************************************************
|
|
* Included Files
|
|
****************************************************************************************/
|
|
|
|
#include <nuttx/config.h>
|
|
|
|
#include "chip.h"
|
|
#include "sam3u_memorymap.h"
|
|
|
|
/****************************************************************************************
|
|
* Pre-processor Definitions
|
|
****************************************************************************************/
|
|
|
|
/* PDC register offsets *****************************************************************/
|
|
|
|
#define SAM3U_PDC_RPR_OFFSET 0x100 /* Receive Pointer Register */
|
|
#define SAM3U_PDC_RCR_OFFSET 0x104 /* Receive Counter Register */
|
|
#define SAM3U_PDC_TPR_OFFSET 0x108 /* Transmit Pointer Register */
|
|
#define SAM3U_PDC_TCR_OFFSET 0x10c /* Transmit Counter Register */
|
|
#define SAM3U_PDC_RNPR_OFFSET 0x110 /* Receive Next Pointer Register */
|
|
#define SAM3U_PDC_RNCR_OFFSET 0x114 /* Receive Next Counter Register */
|
|
#define SAM3U_PDC_TNPR_OFFSET 0x118 /* Transmit Next Pointer Register */
|
|
#define SAM3U_PDC_TNCR_OFFSET 0x11c /* Transmit Next Counter Register */
|
|
#define SAM3U_PDC_PTCR_OFFSET 0x120 /* Transfer Control Register */
|
|
#define SAM3U_PDC_PTSR_OFFSET 0x124 /* Transfer Status Register */
|
|
|
|
/* PDC register adresses ****************************************************************/
|
|
|
|
/* These 10 registers are mapped in the peripheral memory space at the same offset. */
|
|
|
|
/* PDC register bit definitions *********************************************************/
|
|
|
|
#define PDC_RCR_RXCTR_SHIFT (0) /* Bits 0-15: Receive Counter Register */
|
|
#define PDC_RCR_RXCTR_MASK (0xffff << PDC_RCR_RXCTR_SHIFT)
|
|
|
|
#define PDC_TCR_TXCTR_SHIFT (0) /* Bits 0-15: Transmit Counter Register */
|
|
#define PDC_TCR_TXCTR_MASK (0xffff << PDC_TCR_TXCTR_SHIFT)
|
|
|
|
#define PDC_RNCR_RXNCTR_SHIFT (0) /* Bits 0-15: Receive Next Counter */
|
|
#define PDC_RNCR_RXNCTR_MASK (0xffff << PDC_RNCR_RXNCTR_SHIFT)
|
|
|
|
#define PDC_TNCR_TXNCTR_SHIFT (0) /* Bits 0-15: Transmit Counter Next */
|
|
#define PDC_TNCR_TXNCTR_MASK (0xffff << PDC_TNCR_TXNCTR_SHIFT)
|
|
|
|
#define PDC_PTCR_RXTEN (1 << 0) /* Bit 0: Receiver Transfer Enable */
|
|
#define PDC_PTCR_RXTDIS (1 << 1) /* Bit 1: Receiver Transfer Disable */
|
|
#define PDC_PTCR_TXTEN (1 << 8) /* Bit 8: Transmitter Transfer Enable */
|
|
#define PDC_PTCR_TXTDIS (1 << 9) /* Bit 9: Transmitter Transfer Disable */
|
|
|
|
#define PDC_PTSR_RXTEN (1 << 0) /* Bit 0: Receiver Transfer Enable */
|
|
#define PDC_PTSR_TXTEN (1 << 8) /* Bit 8: Transmitter Transfer Enable */
|
|
|
|
/****************************************************************************************
|
|
* Public Types
|
|
****************************************************************************************/
|
|
|
|
/****************************************************************************************
|
|
* Public Data
|
|
****************************************************************************************/
|
|
|
|
/****************************************************************************************
|
|
* Public Functions
|
|
****************************************************************************************/
|
|
|
|
#endif /* __ARCH_ARM_SRC_SAM3U_SAM3U_PDC_H */
|