409 lines
22 KiB
C
409 lines
22 KiB
C
/* $NetBSD: clmpccreg.h,v 1.4 2008/04/28 20:23:49 martin Exp $ */
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/*-
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* Copyright (c) 1999 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Steve C. Woodford.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* Register definitions for the Cirrus Logic CD2400/CD2401
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* Four Channel Multi-Protocol Communications Controller.
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*
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* The values defined here are based on the August 1993 data book.
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* At the present time, this driver supports non-DMA async. mode only.
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*/
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#ifndef __clmpccreg_h
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#define __clmpccreg_h
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/*
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* Register offsets depend on the level on the chip's BYTESWAP pin.
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* When BYTESWAP is low, Motorola byte alignment is in effect.
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* Otherwise, Intel byte alignment is in effect.
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* The values given here assume BYTESWAP is low. See 'sc_byteswap'
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* <dev/ic/clmpccvar.h>.
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*/
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/* Number of bytes of FIFO (Rx & Tx) */
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#define CLMPCC_FIFO_DEPTH 16
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/* Global Registers */
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#define CLMPCC_REG_GFRCR 0x81 /* Global Firmware Revision Code Register */
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#define CLMPCC_REG_CAR 0xee /* Channel Access Register */
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/* Option Registers */
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#define CLMPCC_REG_CMR 0x1b /* Channel Mode Register */
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#define CLMPCC_REG_COR1 0x10 /* Channel Option Register #1 */
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#define CLMPCC_REG_COR2 0x17 /* Channel Option Register #2 */
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#define CLMPCC_REG_COR3 0x16 /* Channel Option Register #3 */
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#define CLMPCC_REG_COR4 0x15 /* Channel Option Register #4 */
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#define CLMPCC_REG_COR5 0x14 /* Channel Option Register #5 */
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#define CLMPCC_REG_COR6 0x18 /* Channel Option Register #6 */
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#define CLMPCC_REG_COR7 0x07 /* Channel Option Register #7 */
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#define CLMPCC_REG_SCHR1 0x1f /* Special Character Register #1 */
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#define CLMPCC_REG_SCHR2 0x1e /* Special Character Register #2 */
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#define CLMPCC_REG_SCHR3 0x1d /* Special Character Register #3 */
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#define CLMPCC_REG_SCHR4 0x1c /* Special Character Register #4 */
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#define CLMPCC_REG_SCRl 0x23 /* Special Character Range (low) */
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#define CLMPCC_REG_SCRh 0x22 /* Special Character Range (high) */
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#define CLMPCC_REG_LNXT 0x2e /* LNext Character */
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#define CLMPCC_REG_RFAR1 0x1f /* Receive Frame Address Register #1 */
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#define CLMPCC_REG_RFAR2 0x1e /* Receive Frame Address Register #2 */
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#define CLMPCC_REG_RFAR3 0x1d /* Receive Frame Address Register #3 */
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#define CLMPCC_REG_RFAR4 0x1c /* Receive Frame Address Register #4 */
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#define CLMPCC_REG_CPSR 0xd6 /* CRC Polynomial Select Register */
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/* Bit Rate and Clock Option Registers */
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#define CLMPCC_REG_RBPR 0xcb /* Receive Baud Rate Period Register */
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#define CLMPCC_REG_RCOR 0xc8 /* Receive Clock Options Register */
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#define CLMPCC_REG_TBPR 0xc3 /* Transmit Baud Rate Period Register */
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#define CLMPCC_REG_TCOR 0xc0 /* Transmit Clock Options Register */
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/* Channel Command and Status Registers */
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#define CLMPCC_REG_CCR 0x13 /* Channel Command Register */
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#define CLMPCC_REG_STCR 0x12 /* Special Transmit Command Register */
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#define CLMPCC_REG_CSR 0x1a /* Channel Status Register */
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#define CLMPCC_REG_MSVR 0xde /* Modem Signal Value Register */
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#define CLMPCC_REG_MSVR_RTS 0xde /* Modem Signal Value Register (RTS) */
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#define CLMPCC_REG_MSVR_DTR 0xdf /* Modem Signal Value Register (DTR) */
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/* Interrupt Registers */
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#define CLMPCC_REG_LIVR 0x09 /* Local Interrupt Vector Register */
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#define CLMPCC_REG_IER 0x11 /* Interrupt Enable Register */
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#define CLMPCC_REG_LICR 0x26 /* Local Interrupting Channel Register */
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#define CLMPCC_REG_STK 0xe2 /* Stack Register */
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/* Receive Interrupt Registers */
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#define CLMPCC_REG_RPILR 0xe1 /* Receive Priority Interrupt Level Reg */
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#define CLMPCC_REG_RIR 0xed /* Receive Interrupt Register */
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#define CLMPCC_REG_RISR 0x88 /* Receive Interrupt Status Reg (16-bits) */
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#define CLMPCC_REG_RISRl 0x89 /* Receive Interrupt Status Reg (low) */
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#define CLMPCC_REG_RISRh 0x88 /* Receive Interrupt Status Reg (high) */
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#define CLMPCC_REG_RFOC 0x30 /* Receive FIFO Output Count */
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#define CLMPCC_REG_RDR 0xf8 /* Receive Data Register */
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#define CLMPCC_REG_REOIR 0x84 /* Receive End of Interrupt Register */
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/* Transmit Interrupt Registers */
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#define CLMPCC_REG_TPILR 0xe0 /* Transmit Priority Interrupt Level Reg */
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#define CLMPCC_REG_TIR 0xec /* Transmit Interrupt Register */
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#define CLMPCC_REG_TISR 0x8a /* Transmit Interrupt Status Register */
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#define CLMPCC_REG_TFTC 0x80 /* Transmit FIFO Transfer Count */
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#define CLMPCC_REG_TDR 0xf8 /* Transmit Data Register */
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#define CLMPCC_REG_TEOIR 0x85 /* Transmit End of Interrupt Register */
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/* Modem Interrupt Registers */
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#define CLMPCC_REG_MPILR 0xe3 /* Modem Priority Interrupt Level Reg */
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#define CLMPCC_REG_MIR 0xef /* Modem Interrupt Register */
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#define CLMPCC_REG_MISR 0x8b /* Modem (/Timer) Interrupt Status Reg */
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#define CLMPCC_REG_MEOIR 0x86 /* Modem End of Interrupt Register */
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/* DMA Registers */
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#define CLMPCC_REG_DMR 0xf6 /* DMA Mode Register (write only) */
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#define CLMPCC_REG_BERCNT 0x8e /* Bus Error Retry Count */
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#define CLMPCC_REG_DMABSTS 0x19 /* DMA Buffer Status */
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/* DMA Receive Registers */
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#define CLMPCC_REG_ARBADRL 0x42 /* A Receive Buffer Address Lower (word) */
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#define CLMPCC_REG_ARBADRU 0x40 /* A Receive Buffer Address Upper (word) */
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#define CLMPCC_REG_BRBADRL 0x46 /* B Receive Buffer Address Lower (word) */
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#define CLMPCC_REG_BRBADRU 0x44 /* B Receive Buffer Address Upper (16bit) */
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#define CLMPCC_REG_ARBCNT 0x4a /* A Receive Buffer Byte Count (word) */
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#define CLMPCC_REG_BRBCNT 0x48 /* B Receive Buffer Byte Count (word) */
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#define CLMPCC_REG_ARBSTS 0x4f /* A Receive Buffer Status */
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#define CLMPCC_REG_BRBSTS 0x4e /* B Receive Buffer Status */
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#define CLMPCC_REG_RCBADRL 0x3e /* Receive Current Buff Addr Lower (word) */
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#define CLMPCC_REG_RCBADRU 0x3c /* Receive Current Buff Addr Upper (word) */
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/* DMA Transmit Registers */
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#define CLMPCC_REG_ATBADRL 0x52 /* A Transmit Buffer Address Lower (word) */
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#define CLMPCC_REG_ATBADRU 0x50 /* A Transmit Buffer Address Upper (word) */
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#define CLMPCC_REG_BTBADRL 0x56 /* B Transmit Buffer Address Lower (word) */
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#define CLMPCC_REG_BTBADRU 0x54 /* B Transmit Buffer Address Upper (word) */
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#define CLMPCC_REG_ATBCNT 0x5a /* A Transmit Buffer Byte Count (word) */
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#define CLMPCC_REG_BTBCNT 0x58 /* B Transmit Buffer Byte Count (word) */
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#define CLMPCC_REG_ATBSTS 0x5f /* A Transmit Buffer Status */
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#define CLMPCC_REG_BTBSTS 0x5e /* B Transmit Buffer Status */
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#define CLMPCC_REG_TCBADRL 0x3a /* Transmit Current Buf Addr Lower (word) */
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#define CLMPCC_REG_TCBADRU 0x38 /* Transmit Current Buf Addr Upper (word) */
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/* Timer Registers */
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#define CLMPCC_REG_TPR 0xda /* Timer Period Register */
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#define CLMPCC_REG_RTPR 0x24 /* Receive Timeout Period Register (word) */
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#define CLMPCC_REG_RTPRl 0x25 /* Receive Timeout Period Register (low) */
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#define CLMPCC_REG_RTPRh 0x24 /* Receive Timeout Period Register (high) */
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#define CLMPCC_REG_GT1 0x2a /* General Timer 1 (word) */
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#define CLMPCC_REG_GT1l 0x2b /* General Timer 1 (low) */
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#define CLMPCC_REG_GT1h 0x2a /* General Timer 1 (high) */
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#define CLMPCC_REG_GT2 0x29 /* General Timer 2 */
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#define CLMPCC_REG_TTR 0x29 /* Transmit Timer Register */
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/* Channel Access Register */
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#define CLMPCC_CAR_MASK 0x03 /* Channel bit mask */
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/* Channel Mode Register */
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#define CLMPCC_CMR_RX_INT (0 << 7) /* Rx using interrupts */
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#define CLMPCC_CMR_RX_DMA (1 << 7) /* Rx using DMA */
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#define CLMPCC_CMR_TX_INT (0 << 6) /* Tx using interrupts */
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#define CLMPCC_CMR_TX_DMA (1 << 6) /* Tx using DMA */
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#define CLMPCC_CMR_HDLC 0x00 /* Select HDLC mode */
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#define CLMPCC_CMR_BISYNC 0x01 /* Select Bisync mode */
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#define CLMPCC_CMR_ASYNC 0x02 /* Select async mode */
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#define CLMPCC_CMR_X21 0x03 /* Select X.21 mode */
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/* Channel Option Register #1 (Async options) */
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#define CLMPCC_COR1_EVEN_PARITY (0 << 7) /* Even parity */
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#define CLMPCC_COR1_ODD_PARITY (1 << 7) /* Odd parity */
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#define CLMPCC_COR1_NO_PARITY (0 << 5) /* No parity */
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#define CLMPCC_COR1_FORCE_PAR (1 << 5) /* Force parity */
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#define CLMPCC_COR1_NORM_PARITY (2 << 5) /* Normal parity */
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#define CLMPCC_COR1_CHECK_PAR (0 << 4) /* Check parity */
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#define CLMPCC_COR1_IGNORE_PAR (1 << 4) /* Ignore parity */
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#define CLMPCC_COR1_CHAR_5BITS 0x04 /* 5 bits per character */
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#define CLMPCC_COR1_CHAR_6BITS 0x05 /* 6 bits per character */
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#define CLMPCC_COR1_CHAR_7BITS 0x06 /* 7 bits per character */
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#define CLMPCC_COR1_CHAR_8BITS 0x07 /* 8 bits per character */
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/* Channel Option Register #2 (Async options) */
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#define CLMPCC_COR2_IXM (1 << 7) /* Implied XON mode */
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#define CLMPCC_COR2_TxIBE (1 << 6) /* Transmit In-Band Flow Control */
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#define CLMPCC_COR2_ETC (1 << 5) /* Embedded Tx Command Enable */
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#define CLMPCC_COR2_RLM (1 << 3) /* Remote Loopback Mode */
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#define CLMPCC_COR2_RtsAO (1 << 2) /* RTS Automatic Output Enable */
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#define CLMPCC_COR2_CtsAE (1 << 1) /* CTS Automatic Enable */
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#define CLMPCC_COR2_DsrAE (1 << 1) /* DSR Automatic Enable */
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/* Embedded transmit commands */
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#define CLMPCC_ETC_MAGIC 0x00 /* Introduces a command */
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#define CLMPCC_ETC_SEND_BREAK 0x81 /* Send a BREAK character */
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#define CLMPCC_ETC_DELAY 0x82 /* Insert a delay */
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#define CLMPCC_ETC_STOP_BREAK 0x83 /* Stop sending BREAK */
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/* Channel Option Register #3 (Async options) */
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#define CLMPCC_COR3_ESCDE (1 << 7) /* Ext Special Char Detect Enab */
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#define CLMPCC_COR3_RngDE (1 << 6) /* Range Detect Enable */
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#define CLMPCC_COR3_FCT (1 << 5) /* Flow Ctrl Transparency Mode */
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#define CLMPCC_COR3_SCDE (1 << 4) /* Special Character Detection */
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#define CLMPCC_COR3_SpIstp (1 << 3) /* Special Character I Strip */
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#define CLMPCC_COR3_STOP_1 0x02 /* 1 Stop Bit */
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#define CLMPCC_COR3_STOP_1_5 0x03 /* 1.5 Stop Bits */
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#define CLMPCC_COR3_STOP_2 0x04 /* 2 Stop Bits */
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/* Channel Option Register #4 */
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#define CLMPCC_COR4_DSRzd (1 << 7) /* Detect 1->0 transition on DSR */
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#define CLMPCC_COR4_CDzd (1 << 6) /* Detect 1->0 transition on CD */
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#define CLMPCC_COR4_CTSzd (1 << 5) /* Detect 1->0 transition on CTS */
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#define CLMPCC_COR4_FIFO_MASK 0x0f /* FIFO Threshold bits */
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#define CLMPCC_COR4_FIFO_LOW 1
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#define CLMPCC_COR4_FIFO_MED 4
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#define CLMPCC_COR4_FIFO_HIGH 8
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/* Channel Option Register #5 */
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#define CLMPCC_COR5_DSRod (1 << 7) /* Detect 0->1 transition on DSR */
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#define CLMPCC_COR5_CDod (1 << 6) /* Detect 0->1 transition on CD */
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#define CLMPCC_COR5_CTSod (1 << 5) /* Detect 0->1 transition on CTS */
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#define CLMPCC_COR5_FLOW_MASK 0x0f /* Rx Flow Control FIFO Threshold */
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#define CLMPCC_COR5_FLOW_NORM 8
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/* Channel Option Register #6 (Async options) */
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#define CLMPCC_COR6_RX_CRNL 0x00 /* No special action on CR or NL */
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#define CLMPCC_COR6_BRK_EXCEPT (0 << 3) /* Exception interrupt on BREAK */
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#define CLMPCC_COR6_BRK_2_NULL (1 << 3) /* Translate BREAK to NULL char */
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#define CLMPCC_COR6_BRK_DISCARD (3 << 3) /* Discard BREAK characters */
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#define CLMPCC_COR6_PF_EXCEPT 0x00 /* Exception irq on parity/frame */
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#define CLMPCC_COR6_PF_2_NULL 0x01 /* Translate parity/frame to NULL */
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#define CLMPCC_COR6_PF_IGNORE 0x02 /* Ignore error */
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#define CLMPCC_COR6_PF_DISCARD 0x03 /* Discard character */
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#define CLMPCC_COR6_PF_TRANS 0x05 /* Translate to FF NULL + char */
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/* Channel Option Register #7 (Async options) */
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#define CLMPCC_COR7_ISTRIP (1 << 7) /* Strip MSB */
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#define CLMPCC_COR7_LNE (1 << 6) /* Enable LNext Option */
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#define CLMPCC_COR7_FCERR (1 << 5) /* Flow Control on Error Char */
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#define CLMPCC_COR7_TX_CRNL 0x00 /* No special action on NL or CR */
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/* Receive Clock Options Register */
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#define CLMPCC_RCOR_CLK(x) (x)
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#define CLMPCC_RCOR_TLVAL (1 << 7) /* Transmit Line Value */
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#define CLMPCC_RCOR_DPLL_ENABLE (1 << 5) /* Phase Locked Loop Enable */
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#define CLMPCC_RCOR_DPLL_NRZ (0 << 3) /* PLL runs in NRZ mode */
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#define CLMPCC_RCOR_DPLL_NRZI (1 << 3) /* PLL runs in NRZI mode */
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#define CLMPCC_RCOR_DPLL_MAN (2 << 3) /* PLL runs in Manchester mode */
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#define CLMPCC_RCOR_CLK_0 0x0 /* Rx Clock Source 'Clk0' */
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#define CLMPCC_RCOR_CLK_1 0x1 /* Rx Clock Source 'Clk1' */
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#define CLMPCC_RCOR_CLK_2 0x2 /* Rx Clock Source 'Clk2' */
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#define CLMPCC_RCOR_CLK_3 0x3 /* Rx Clock Source 'Clk3' */
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#define CLMPCC_RCOR_CLK_4 0x4 /* Rx Clock Source 'Clk4' */
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#define CLMPCC_RCOR_CLK_EXT 0x6 /* Rx Clock Source 'External' */
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/* Transmit Clock Options Register */
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#define CLMPCC_TCOR_CLK(x) ((x) << 5)
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#define CLMPCC_TCOR_CLK_0 (0 << 5) /* Tx Clock Source 'Clk0' */
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#define CLMPCC_TCOR_CLK_1 (1 << 5) /* Tx Clock Source 'Clk1' */
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#define CLMPCC_TCOR_CLK_2 (2 << 5) /* Tx Clock Source 'Clk2' */
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#define CLMPCC_TCOR_CLK_3 (3 << 5) /* Tx Clock Source 'Clk3' */
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#define CLMPCC_TCOR_CLK_4 (4 << 5) /* Tx Clock Source 'Clk4' */
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#define CLMPCC_TCOR_CLK_EXT (6 << 5) /* Tx Clock Source 'External' */
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#define CLMPCC_TCOR_CLK_RX (7 << 5) /* Tx Clock Source 'Same as Rx' */
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#define CLMPCC_TCOR_EXT_1X (1 << 3) /* Times 1 External Clock */
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#define CLMPCC_TCOR_LOCAL_LOOP (1 << 1) /* Enable Local Loopback */
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/* Special Transmit Command Register */
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#define CLMPCC_STCR_SSPC(n) ((n) & 0x7) /* Send special character 'n' */
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#define CLMPCC_STCR_SND_SPC (1 << 3) /* Initiate send special char */
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#define CLMPCC_STCR_APPEND_COMP (1 << 5) /* Append complete (Async DMA) */
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#define CLMPCC_STCR_ABORT_TX (1 << 6) /* Abort Tx (HDLC Mode only) */
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/* Channel Command Register */
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#define CLMPCC_CCR_T0_CLEAR 0x40 /* Type 0: Clear Channel */
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#define CLMPCC_CCR_T0_INIT 0x20 /* Type 0: Initialise Channel */
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#define CLMPCC_CCR_T0_RESET_ALL 0x10 /* Type 0: Reset All */
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#define CLMPCC_CCR_T0_TX_EN 0x08 /* Type 0: Transmitter Enable */
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#define CLMPCC_CCR_T0_TX_DIS 0x04 /* Type 0: Transmitter Disable */
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#define CLMPCC_CCR_T0_RX_EN 0x02 /* Type 0: Receiver Enable */
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#define CLMPCC_CCR_T0_RX_DIS 0x01 /* Type 0: Receiver Disable */
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#define CLMPCC_CCR_T1_CLR_TMR1 0xc0 /* Type 1: Clear Timer 1 */
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#define CLMPCC_CCR_T1_CLR_TMR2 0xa0 /* Type 1: Clear Timer 5 */
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#define CLMPCC_CCR_T1_CLR_RECV 0x90 /* Type 1: Clear Receiver */
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/* Channel Status Register (Async Mode) */
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#define CLMPCC_CSR_RX_ENABLED (1 << 7) /* Receiver Enabled */
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#define CLMPCC_CSR_RX_FLOW_OFF (1 << 6) /* Receive Flow Off */
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#define CLMPCC_CSR_RX_FLOW_ON (1 << 5) /* Receive Flow On */
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#define CLMPCC_CSR_TX_ENABLED (1 << 3) /* Transmitter Enabled */
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#define CLMPCC_CSR_TX_FLOW_OFF (1 << 2) /* Transmit Flow Off */
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#define CLMPCC_CSR_TX_FLOW_ON (1 << 1) /* Transmit Flow On */
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/* Modem Signal Value Register */
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#define CLMPCC_MSVR_DSR (1 << 7) /* Current State of DSR Input */
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#define CLMPCC_MSVR_CD (1 << 6) /* Current State of CD Input */
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#define CLMPCC_MSVR_CTS (1 << 5) /* Current State of CTS Input */
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#define CLMPCC_MSVR_DTR_OPT (1 << 4) /* DTR Option Select */
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#define CLMPCC_MSVR_PORT_ID (1 << 2) /* Device Type (2400 / 2401) */
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#define CLMPCC_MSVR_DTR (1 << 1) /* Current State of DTR Output */
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#define CLMPCC_MSVR_RTS (1 << 0) /* Current State of RTS Output */
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/* Local Interrupt Vector Register */
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#define CLMPCC_LIVR_TYPE_MASK 0x03 /* Type of Interrupt */
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#define CLMPCC_LIVR_EXCEPTION 0x0 /* Exception (DMA Completion) */
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#define CLMPCC_LIVR_MODEM 0x1 /* Modem Signal Change */
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#define CLMPCC_LIVR_TX 0x2 /* Transmit Data Interrupt */
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#define CLMPCC_LIVR_RX 0x3 /* Receive Data Interrupt */
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/* Interrupt Enable Register */
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#define CLMPCC_IER_MODEM (1 << 7) /* Modem Pin Change Detect */
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#define CLMPCC_IER_RET (1 << 5) /* Receive Exception Timeout */
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#define CLMPCC_IER_RX_FIFO (1 << 3) /* Rx FIFO Threshold Reached */
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#define CLMPCC_IER_TIMER (1 << 2) /* General Timer(s) Timeout */
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#define CLMPCC_IER_TX_EMPTY (1 << 1) /* Tx Empty */
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#define CLMPCC_IER_TX_FIFO (1 << 0) /* Tx FIFO Threshold Reached */
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/* Local Interrupting Channel Register */
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#define CLMPCC_LICR_MASK 0x0c /* Mask for channel number */
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#define CLMPCC_LICR_CHAN(v) (((v) & CLMPCC_LICR_MASK) >> 2)
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/* Receive Interrupt Register */
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#define CLMPCC_RIR_REN (1 << 7) /* Receive Enable */
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#define CLMPCC_RIR_RACT (1 << 6) /* Receive Active */
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#define CLMPCC_RIR_REOI (1 << 5) /* Receive End of Interrupt */
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#define CLMPCC_RIR_RCVT_MASK 0x0c
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#define CLMPCC_RIR_RCN_MASK 0x03
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/* Receive Interrupt Status Register, Low (Async option) */
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#define CLMPCC_RISR_TIMEOUT (1 << 7) /* Rx FIFO Empty and Timeout */
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#define CLMPCC_RISR_OVERRUN (1 << 3) /* Rx Overrun Error */
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#define CLMPCC_RISR_PARITY (1 << 2) /* Rx Parity Error */
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#define CLMPCC_RISR_FRAMING (1 << 1) /* Rx Framing Error */
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#define CLMPCC_RISR_BREAK (1 << 0) /* BREAK Detected */
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/* Receive FIFO Counter Register */
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#define CLMPCC_RFOC_MASK 0x1f /* Mask for valid bits */
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/* Receive End of Interrupt Register */
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#define CLMPCC_REOIR_TERMBUFF (1 << 7) /* Terminate Current DMA Buffer */
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#define CLMPCC_REOIR_DIS_EX_CHR (1 << 6) /* Discard Exception Char (DMA) */
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#define CLMPCC_REOIR_TMR2_SYNC (1 << 5) /* Set Timer 2 in Sync Mode */
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#define CLMPCC_REOIR_TMR1_SYNC (1 << 4) /* Set Timer 1 in Sync Mode */
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#define CLMPCC_REOIR_NO_TRANS (1 << 3) /* No Transfer of Data */
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/* Transmit Interrupt Register */
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#define CLMPCC_TIR_TEN (1 << 7) /* Transmit Enable */
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#define CLMPCC_TIR_TACT (1 << 6) /* Transmit Active */
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#define CLMPCC_TIR_TEOI (1 << 5) /* Transmit End of Interrupt */
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#define CLMPCC_TIR_TCVT_MASK 0x0c
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#define CLMPCC_TIR_TCN_MASK 0x03
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/* Transmit Interrupt Status Register (Async option) */
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#define CLMPCC_TISR_BERR (1 << 7) /* Bus Error (DMA) */
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#define CLMPCC_TISR_EOF (1 << 6) /* Transmit End of Frame (DMA) */
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#define CLMPCC_TISR_EOB (1 << 5) /* Transmit End of Buffer (DMA) */
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#define CLMPCC_TISR_UNDERRUN (1 << 4) /* Transmit Underrun (sync only) */
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#define CLMPCC_TISR_BUFF_ID (1 << 3) /* Buffer that has exception */
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#define CLMPCC_TISR_TX_EMPTY (1 << 1) /* Transmitter Empty */
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#define CLMPCC_TISR_TX_FIFO (1 << 0) /* Transmit FIFO Below Threshold */
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/* Transmit FIFO Transfer Count Register */
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#define CLMPCC_TFTC_MASK 0x1f /* Mask for valid bits */
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/* Transmit End of Interrupt Register */
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#define CLMPCC_TEOIR_TERMBUFF (1 << 7) /* Terminate Current DMA Buffer */
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#define CLMPCC_TEOIR_END_OF_FRM (1 << 6) /* End of Frame (sync mode) */
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#define CLMPCC_TEOIR_TMR2_SYNC (1 << 5) /* Set Timer 2 in Sync Mode */
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#define CLMPCC_TEOIR_TMR1_SYNC (1 << 4) /* Set Timer 1 in Sync Mode */
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#define CLMPCC_TEOIR_NO_TRANS (1 << 3) /* No Transfer of Data */
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/* Modem Interrupt Register */
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#define CLMPCC_MIR_MEN (1 << 7) /* Modem Enable */
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#define CLMPCC_MIR_MACT (1 << 6) /* Modem Active */
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#define CLMPCC_MIR_MEOI (1 << 5) /* Modem End of Interrupt */
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#define CLMPCC_MIR_MCVT_MASK 0x0c
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#define CLMPCC_MIR_MCN_MASK 0x03
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/* Modem/Timer Interrupt Status Register */
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#define CLMPCC_MISR_DSR (1 << 7) /* DSR Changed State */
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#define CLMPCC_MISR_CD (1 << 6) /* CD Changed State */
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#define CLMPCC_MISR_CTS (1 << 5) /* CTS Changed State */
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#define CLMPCC_MISR_TMR2 (1 << 1) /* Timer 2 Timed Out */
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#define CLMPCC_MISR_TMR1 (1 << 0) /* Timer 1 Timed Out */
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/* Modem End of Interrupt Register */
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#define CLMPCC_MEOIR_TMR2_SYNC (1 << 5) /* Set Timer 2 in Sync Mode */
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#define CLMPCC_MEOIR_TMR1_SYNC (1 << 4) /* Set Timer 1 in Sync Mode */
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/* Default value for CLMPCC_REG_RTPRl */
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#define CLMPCC_RTPR_DEFAULT 2 /* 2mS timeout period */
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/*
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* Return a value for the Receive Timer Prescaler register
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* for a given clock rate and number of milliseconds.
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* The minimum recommended value for this register is 0x0a.
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*/
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#define CLMPCC_MSEC_TO_TPR(c,m) (((((c)/2048)/(1000/(m))) > 0x0a) ? \
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(((c)/2048)/(1000/(m))) : 0x0a)
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#endif /* __clmpccreg_h */
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