+++ /dev/null
-/* $Id: xiic_l.h,v 1.2 2002/12/05 19:32:40 meinelte Exp $ */
-/*****************************************************************************
-*
-* XILINX IS PROVIDING THIS DESIGN, CODE, OR INFORMATION "AS IS"
-* AS A COURTESY TO YOU, SOLELY FOR USE IN DEVELOPING PROGRAMS AND
-* SOLUTIONS FOR XILINX DEVICES. BY PROVIDING THIS DESIGN, CODE,
-* OR INFORMATION AS ONE POSSIBLE IMPLEMENTATION OF THIS FEATURE,
-* APPLICATION OR STANDARD, XILINX IS MAKING NO REPRESENTATION
-* THAT THIS IMPLEMENTATION IS FREE FROM ANY CLAIMS OF INFRINGEMENT,
-* AND YOU ARE RESPONSIBLE FOR OBTAINING ANY RIGHTS YOU MAY REQUIRE
-* FOR YOUR IMPLEMENTATION. XILINX EXPRESSLY DISCLAIMS ANY
-* WARRANTY WHATSOEVER WITH RESPECT TO THE ADEQUACY OF THE
-* IMPLEMENTATION, INCLUDING BUT NOT LIMITED TO ANY WARRANTIES OR
-* REPRESENTATIONS THAT THIS IMPLEMENTATION IS FREE FROM CLAIMS OF
-* INFRINGEMENT, IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-* FOR A PARTICULAR PURPOSE.
-*
-* (c) Copyright 2002 Xilinx Inc.
-* All rights reserved.
-*
-*****************************************************************************/
-/****************************************************************************/
-/**
-*
-* @file xiic_l.h
-*
-* This header file contains identifiers and low-level driver functions (or
-* macros) that can be used to access the device. High-level driver functions
-* are defined in xiic.h.
-*
-* <pre>
-* MODIFICATION HISTORY:
-*
-* Ver Who Date Changes
-* ----- ---- -------- -----------------------------------------------
-* 1.00b jhl 05/07/02 First release
-* 1.01c ecm 12/05/02 new rev
-* </pre>
-*
-*****************************************************************************/
-
-#ifndef XIIC_L_H /* prevent circular inclusions */
-#define XIIC_L_H /* by using protection macros */
-
-/***************************** Include Files ********************************/
-
-#include "xbasic_types.h"
-
-/************************** Constant Definitions ****************************/
-
-#define XIIC_MSB_OFFSET 3
-
-#define XIIC_REG_OFFSET 0x100 + XIIC_MSB_OFFSET
-
-/*
- * Register offsets in bytes from RegisterBase. Three is added to the
- * base offset to access LSB (IBM style) of the word
- */
-#define XIIC_CR_REG_OFFSET 0x00+XIIC_REG_OFFSET /* Control Register */
-#define XIIC_SR_REG_OFFSET 0x04+XIIC_REG_OFFSET /* Status Register */
-#define XIIC_DTR_REG_OFFSET 0x08+XIIC_REG_OFFSET /* Data Tx Register */
-#define XIIC_DRR_REG_OFFSET 0x0C+XIIC_REG_OFFSET /* Data Rx Register */
-#define XIIC_ADR_REG_OFFSET 0x10+XIIC_REG_OFFSET /* Address Register */
-#define XIIC_TFO_REG_OFFSET 0x14+XIIC_REG_OFFSET /* Tx FIFO Occupancy */
-#define XIIC_RFO_REG_OFFSET 0x18+XIIC_REG_OFFSET /* Rx FIFO Occupancy */
-#define XIIC_TBA_REG_OFFSET 0x1C+XIIC_REG_OFFSET /* 10 Bit Address reg */
-#define XIIC_RFD_REG_OFFSET 0x20+XIIC_REG_OFFSET /* Rx FIFO Depth reg */
-
-/* Control Register masks */
-
-#define XIIC_CR_ENABLE_DEVICE_MASK 0x01 /* Device enable = 1 */
-#define XIIC_CR_TX_FIFO_RESET_MASK 0x02 /* Transmit FIFO reset=1 */
-#define XIIC_CR_MSMS_MASK 0x04 /* Master starts Txing=1 */
-#define XIIC_CR_DIR_IS_TX_MASK 0x08 /* Dir of tx. Txing=1 */
-#define XIIC_CR_NO_ACK_MASK 0x10 /* Tx Ack. NO ack = 1 */
-#define XIIC_CR_REPEATED_START_MASK 0x20 /* Repeated start = 1 */
-#define XIIC_CR_GENERAL_CALL_MASK 0x40 /* Gen Call enabled = 1 */
-
-/* Status Register masks */
-
-#define XIIC_SR_GEN_CALL_MASK 0x01 /* 1=a mstr issued a GC */
-#define XIIC_SR_ADDR_AS_SLAVE_MASK 0x02 /* 1=when addr as slave */
-#define XIIC_SR_BUS_BUSY_MASK 0x04 /* 1 = bus is busy */
-#define XIIC_SR_MSTR_RDING_SLAVE_MASK 0x08 /* 1=Dir: mstr <-- slave */
-#define XIIC_SR_TX_FIFO_FULL_MASK 0x10 /* 1 = Tx FIFO full */
-#define XIIC_SR_RX_FIFO_FULL_MASK 0x20 /* 1 = Rx FIFO full */
-#define XIIC_SR_RX_FIFO_EMPTY_MASK 0x40 /* 1 = Rx FIFO empty */
-
-/* IPIF Interrupt Status Register masks Interrupt occurs when... */
-
-#define XIIC_INTR_ARB_LOST_MASK 0x01 /* 1 = arbitration lost */
-#define XIIC_INTR_TX_ERROR_MASK 0x02 /* 1=Tx error/msg complete*/
-#define XIIC_INTR_TX_EMPTY_MASK 0x04 /* 1 = Tx FIFO/reg empty */
-#define XIIC_INTR_RX_FULL_MASK 0x08 /* 1=Rx FIFO/reg=OCY level*/
-#define XIIC_INTR_BNB_MASK 0x10 /* 1 = Bus not busy */
-#define XIIC_INTR_AAS_MASK 0x20 /* 1 = when addr as slave */
-#define XIIC_INTR_NAAS_MASK 0x40 /* 1 = not addr as slave */
-#define XIIC_INTR_TX_HALF_MASK 0x80 /* 1 = TX FIFO half empty */
-
-/* IPIF Device Interrupt Register masks */
-
-#define XIIC_IPIF_IIC_MASK 0x00000004UL /* 1=inter enabled */
-#define XIIC_IPIF_ERROR_MASK 0x00000001UL /* 1=inter enabled */
-#define XIIC_IPIF_INTER_ENABLE_MASK (XIIC_IPIF_IIC_MASK | \
- XIIC_IPIF_ERROR_MASK)
-
-#define XIIC_TX_ADDR_SENT 0x00
-#define XIIC_TX_ADDR_MSTR_RECV_MASK 0x02
-
-/* The following constants specify the depth of the FIFOs */
-
-#define IIC_RX_FIFO_DEPTH 16 /* Rx fifo capacity */
-#define IIC_TX_FIFO_DEPTH 16 /* Tx fifo capacity */
-
-/* The following constants specify groups of interrupts that are typically
- * enabled or disables at the same time
- */
-#define XIIC_TX_INTERRUPTS \
- (XIIC_INTR_TX_ERROR_MASK | XIIC_INTR_TX_EMPTY_MASK | \
- XIIC_INTR_TX_HALF_MASK)
-
-#define XIIC_TX_RX_INTERRUPTS (XIIC_INTR_RX_FULL_MASK | XIIC_TX_INTERRUPTS)
-
-/* The following constants are used with the following macros to specify the
- * operation, a read or write operation.
- */
-#define XIIC_READ_OPERATION 1
-#define XIIC_WRITE_OPERATION 0
-
-/* The following constants are used with the transmit FIFO fill function to
- * specify the role which the IIC device is acting as, a master or a slave.
- */
-#define XIIC_MASTER_ROLE 1
-#define XIIC_SLAVE_ROLE 0
-
-/**************************** Type Definitions ******************************/
-
-
-/***************** Macros (Inline Functions) Definitions ********************/
-
-
-/************************** Function Prototypes *****************************/
-
-unsigned XIic_Recv(u32 BaseAddress, u8 Address,
- u8 *BufferPtr, unsigned ByteCount);
-
-unsigned XIic_Send(u32 BaseAddress, u8 Address,
- u8 *BufferPtr, unsigned ByteCount);
-
-#endif /* end of protection macro */
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