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/*- * Hitachi HD64570 serial communications adaptor registers. * * Copyright (C) 1996 Cronyx Engineering. * Author: Serge Vakulenko, <vak@cronyx.ru> * * This software is distributed with NO WARRANTIES, not even the implied * warranties for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. * * Authors grant any other persons or organisations permission to use * or modify this software as long as this message is kept with the software, * all derivative works or modified versions. * * Cronyx Id: hdc64570.h,v 1.1.2.2 2003/11/12 17:31:21 rik Exp $ * $FreeBSD: release/9.1.0/sys/dev/ctau/hdc64570.h 139749 2005-01-06 01:43:34Z imp $ */ /* * Low power mode control register. */ #define HD_LPR 0x00 /* low power register */ /* * Interrupt control registers. */ #define HD_IVR 0x1a /* interrupt vector register */ #define HD_IMVR 0x1c /* interrupt modified vector register */ #define HD_ITCR 0x18 /* interrupt control register */ #define HD_ISR0 0x10 /* interrupt status register 0, ro */ #define HD_ISR1 0x11 /* interrupt status register 1, ro */ #define HD_ISR2 0x12 /* interrupt status register 2, ro */ #define HD_IER0 0x14 /* interrupt enable register 0 */ #define HD_IER1 0x15 /* interrupt enable register 1 */ #define HD_IER2 0x16 /* interrupt enable register 2 */ /* * Multiprotocol serial communication interface registers. */ #define HD_MD0_0 0x2e /* mode register 0 chan 0 */ #define HD_MD0_1 0x4e /* mode register 0 chan 1 */ #define HD_MD1_0 0x2f /* mode register 1 chan 0 */ #define HD_MD1_1 0x4f /* mode register 1 chan 1 */ #define HD_MD2_0 0x30 /* mode register 2 chan 0 */ #define HD_MD2_1 0x50 /* mode register 2 chan 1 */ #define HD_CTL_0 0x31 /* control register chan 0 */ #define HD_CTL_1 0x51 /* control register chan 1 */ #define HD_RXS_0 0x36 /* RX clock source register chan 0 */ #define HD_RXS_1 0x56 /* RX clock source register chan 1 */ #define HD_TXS_0 0x37 /* TX clock source register chan 0 */ #define HD_TXS_1 0x57 /* TX clock source register chan 1 */ #define HD_TMC_0 0x35 /* time constant register chan 0 */ #define HD_TMC_1 0x55 /* time constant register chan 1 */ #define HD_CMD_0 0x2c /* command register chan 0, wo */ #define HD_CMD_1 0x4c /* command register chan 1, wo */ #define HD_ST0_0 0x22 /* status register 0 chan 0, ro */ #define HD_ST0_1 0x42 /* status register 0 chan 1, ro */ #define HD_ST1_0 0x23 /* status register 1 chan 0 */ #define HD_ST1_1 0x43 /* status register 1 chan 1 */ #define HD_ST2_0 0x24 /* status register 2 chan 0 */ #define HD_ST2_1 0x44 /* status register 2 chan 1 */ #define HD_ST3_0 0x25 /* status register 3 chan 0, ro */ #define HD_ST3_1 0x45 /* status register 3 chan 1, ro */ #define HD_FST_0 0x26 /* frame status register chan 0 */ #define HD_FST_1 0x46 /* frame status register chan 1 */ #define HD_IE0_0 0x28 /* interrupt enable register 0 chan 0 */ #define HD_IE0_1 0x48 /* interrupt enable register 0 chan 1 */ #define HD_IE1_0 0x29 /* interrupt enable register 1 chan 0 */ #define HD_IE1_1 0x49 /* interrupt enable register 1 chan 1 */ #define HD_IE2_0 0x2a /* interrupt enable register 2 chan 0 */ #define HD_IE2_1 0x4a /* interrupt enable register 2 chan 1 */ #define HD_FIE_0 0x2b /* frame interrupt enable register chan 0 */ #define HD_FIE_1 0x4b /* frame interrupt enable register chan 1 */ #define HD_SA0_0 0x32 /* sync/address register 0 chan 0 */ #define HD_SA0_1 0x52 /* sync/address register 0 chan 1 */ #define HD_SA1_0 0x33 /* sync/address register 1 chan 0 */ #define HD_SA1_1 0x53 /* sync/address register 1 chan 1 */ #define HD_IDL_0 0x34 /* idle pattern register chan 0 */ #define HD_IDL_1 0x54 /* idle pattern register chan 1 */ #define HD_TRB_0 0x20 /* TX/RX buffer register chan 0 */ #define HD_TRB_1 0x40 /* TX/RX buffer register chan 1 */ #define HD_RRC_0 0x3a /* RX ready control register chan 0 */ #define HD_RRC_1 0x5a /* RX ready control register chan 1 */ #define HD_TRC0_0 0x38 /* TX ready control register 0 chan 0 */ #define HD_TRC0_1 0x58 /* TX ready control register 0 chan 1 */ #define HD_TRC1_0 0x39 /* TX ready control register 1 chan 0 */ #define HD_TRC1_1 0x59 /* TX ready control register 1 chan 1 */ #define HD_CST_0 0x3c /* current status register chan 0 */ #define HD_CST_1 0x5c /* current status register chan 1 */ /* * DMA controller registers. */ #define HD_PCR 0x08 /* DMA priority control register */ #define HD_DMER 0x09 /* DMA master enable register */ #define HD_DAR_0R 0x80 /* destination address chan 0rx */ #define HD_DAR_0T 0xa0 /* destination address chan 0tx */ #define HD_DAR_1R 0xc0 /* destination address chan 1rx */ #define HD_DAR_1T 0xe0 /* destination address chan 1tx */ #define HD_DARB_0R 0x82 /* destination address B chan 0rx */ #define HD_DARB_0T 0xa2 /* destination address B chan 0tx */ #define HD_DARB_1R 0xc2 /* destination address B chan 1rx */ #define HD_DARB_1T 0xe2 /* destination address B chan 1tx */ #define HD_SAR_0R 0x84 /* source address chan 0rx */ #define HD_SAR_0T 0xa4 /* source address chan 0tx */ #define HD_SAR_1R 0xc4 /* source address chan 1rx */ #define HD_SAR_1T 0xe4 /* source address chan 1tx */ #define HD_SARB_0R 0x86 /* source address B chan 0rx */ #define HD_SARB_0T 0xa6 /* source address B chan 0tx */ #define HD_SARB_1R 0xc6 /* source address B chan 1rx */ #define HD_SARB_1T 0xe6 /* source address B chan 1tx */ #define HD_CDA_0R 0x88 /* current descriptor address chan 0rx */ #define HD_CDA_0T 0xa8 /* current descriptor address chan 0tx */ #define HD_CDA_1R 0xc8 /* current descriptor address chan 1rx */ #define HD_CDA_1T 0xe8 /* current descriptor address chan 1tx */ #define HD_EDA_0R 0x8a /* error descriptor address chan 0rx */ #define HD_EDA_0T 0xaa /* error descriptor address chan 0tx */ #define HD_EDA_1R 0xca /* error descriptor address chan 1rx */ #define HD_EDA_1T 0xea /* error descriptor address chan 1tx */ #define HD_BFL_0R 0x8c /* receive buffer length chan 0rx */ #define HD_BFL_1R 0xcc /* receive buffer length chan 1rx */ #define HD_BCR_0R 0x8e /* byte count register chan 0rx */ #define HD_BCR_0T 0xae /* byte count register chan 0tx */ #define HD_BCR_1R 0xce /* byte count register chan 1rx */ #define HD_BCR_1T 0xee /* byte count register chan 1tx */ #define HD_DSR_0R 0x90 /* DMA status register chan 0rx */ #define HD_DSR_0T 0xb0 /* DMA status register chan 0tx */ #define HD_DSR_1R 0xd0 /* DMA status register chan 1rx */ #define HD_DSR_1T 0xf0 /* DMA status register chan 1tx */ #define HD_DMR_0R 0x91 /* DMA mode register chan 0rx */ #define HD_DMR_0T 0xb1 /* DMA mode register chan 0tx */ #define HD_DMR_1R 0xd1 /* DMA mode register chan 1rx */ #define HD_DMR_1T 0xf1 /* DMA mode register chan 1tx */ #define HD_FCT_0R 0x93 /* end-of-frame intr counter chan 0rx, ro */ #define HD_FCT_0T 0xb3 /* end-of-frame intr counter chan 0tx, ro */ #define HD_FCT_1R 0xd3 /* end-of-frame intr counter chan 1rx, ro */ #define HD_FCT_1T 0xf3 /* end-of-frame intr counter chan 1tx, ro */ #define HD_DIR_0R 0x94 /* DMA interrupt enable register chan 0rx */ #define HD_DIR_0T 0xb4 /* DMA interrupt enable register chan 0tx */ #define HD_DIR_1R 0xd4 /* DMA interrupt enable register chan 1rx */ #define HD_DIR_1T 0xf4 /* DMA interrupt enable register chan 1tx */ #define HD_DCR_0R 0x95 /* DMA command register chan 0rx, wo */ #define HD_DCR_0T 0xb5 /* DMA command register chan 0tx, wo */ #define HD_DCR_1R 0xd5 /* DMA command register chan 1rx, wo */ #define HD_DCR_1T 0xf5 /* DMA command register chan 1tx, wo */ /* * Timer registers. */ #define HD_TCNT_0R 0x60 /* timer up counter chan 0rx */ #define HD_TCNT_0T 0x68 /* timer up counter chan 0tx */ #define HD_TCNT_1R 0x70 /* timer up counter chan 1rx */ #define HD_TCNT_1T 0x78 /* timer up counter chan 1tx */ #define HD_TCONR_0R 0x62 /* timer constant register chan 0rx, wo */ #define HD_TCONR_0T 0x6a /* timer constant register chan 0tx, wo */ #define HD_TCONR_1R 0x72 /* timer constant register chan 1rx, wo */ #define HD_TCONR_1T 0x7a /* timer constant register chan 1tx, wo */ #define HD_TCSR_0R 0x64 /* timer control/status register chan 0rx */ #define HD_TCSR_0T 0x6c /* timer control/status register chan 0tx */ #define HD_TCSR_1R 0x74 /* timer control/status register chan 1rx */ #define HD_TCSR_1T 0x7c /* timer control/status register chan 1tx */ #define HD_TEPR_0R 0x65 /* timer expand prescale register chan 0rx */ #define HD_TEPR_0T 0x6d /* timer expand prescale register chan 0tx */ #define HD_TEPR_1R 0x75 /* timer expand prescale register chan 1rx */ #define HD_TEPR_1T 0x7d /* timer expand prescale register chan 1tx */ /* * Wait controller registers. */ #define HD_PABR0 0x02 /* physical address boundary register 0 */ #define HD_PABR1 0x03 /* physical address boundary register 1 */ #define HD_WCRL 0x04 /* wait control register L */ #define HD_WCRM 0x05 /* wait control register M */ #define HD_WCRH 0x06 /* wait control register H */ /* * Interrupt modified vector register (IMVR) bits. */ #define IMVR_CHAN1 040 /* channel 1 vector bit */ #define IMVR_VECT_MASK 037 /* interrupt reason mask */ #define IMVR_RX_RDY 004 /* receive buffer ready */ #define IMVR_RX_INT 010 /* receive status */ #define IMVR_RX_DMERR 024 /* receive DMA error */ #define IMVR_RX_DMOK 026 /* receive DMA normal end */ #define IMVR_RX_TIMER 034 /* timer 0/2 count match */ #define IMVR_TX_RDY 006 /* transmit buffer ready */ #define IMVR_TX_INT 012 /* transmit status */ #define IMVR_TX_DMERR 030 /* transmit DMA error */ #define IMVR_TX_DMOK 032 /* transmit DMA normal end */ #define IMVR_TX_TIMER 036 /* timer 1/3 count match */ /* * Interrupt control register (ITCR) bits. */ #define ITCR_PRIO_DMAC 0x80 /* DMA priority higher than MSCI */ #define ITCR_CYCLE_VOID 0x00 /* non-acknowledge cycle */ #define ITCR_CYCLE_SINGLE 0x20 /* single acknowledge cycle */ #define ITCR_CYCLE_DOUBLE 0x40 /* double acknowledge cycle */ #define ITCR_VECT_MOD 0x10 /* interrupt modified vector flag */ /* * Interrupt status register 0 (ISR0) bits. */ #define ISR0_RX_RDY_0 0x01 /* channel 0 receiver ready */ #define ISR0_TX_RDY_0 0x02 /* channel 0 transmitter ready */ #define ISR0_RX_INT_0 0x04 /* channel 0 receiver status */ #define ISR0_TX_INT_0 0x08 /* channel 0 transmitter status */ #define ISR0_RX_RDY_1 0x10 /* channel 1 receiver ready */ #define ISR0_TX_RDY_1 0x20 /* channel 1 transmitter ready */ #define ISR0_RX_INT_1 0x40 /* channel 1 receiver status */ #define ISR0_TX_INT_1 0x80 /* channel 1 transmitter status */ /* * Interrupt status register 1 (ISR1) bits. */ #define ISR1_RX_DMERR_0 0x01 /* channel 0 receive DMA error */ #define ISR1_RX_DMOK_0 0x02 /* channel 0 receive DMA finished */ #define ISR1_TX_DMERR_0 0x04 /* channel 0 transmit DMA error */ #define ISR1_TX_DMOK_0 0x08 /* channel 0 transmit DMA finished */ #define ISR1_RX_DMERR_1 0x10 /* channel 1 receive DMA error */ #define ISR1_RX_DMOK_1 0x20 /* channel 1 receive DMA finished */ #define ISR1_TX_DMERR_1 0x40 /* channel 1 transmit DMA error */ #define ISR1_TX_DMOK_1 0x80 /* channel 1 transmit DMA finished */ /* * Interrupt status register 2 (ISR2) bits. */ #define ISR2_RX_TIMER_0 0x10 /* channel 0 receive timer */ #define ISR2_TX_TIMER_0 0x20 /* channel 0 transmit timer */ #define ISR2_RX_TIMER_1 0x40 /* channel 1 receive timer */ #define ISR2_TX_TIMER_1 0x80 /* channel 1 transmit timer */ /* * Interrupt enable register 0 (IER0) bits. */ #define IER0_RX_RDYE_0 0x01 /* channel 0 receiver ready enable */ #define IER0_TX_RDYE_0 0x02 /* channel 0 transmitter ready enable */ #define IER0_RX_INTE_0 0x04 /* channel 0 receiver status enable */ #define IER0_TX_INTE_0 0x08 /* channel 0 transmitter status enable */ #define IER0_RX_RDYE_1 0x10 /* channel 1 receiver ready enable */ #define IER0_TX_RDYE_1 0x20 /* channel 1 transmitter ready enable */ #define IER0_RX_INTE_1 0x40 /* channel 1 receiver status enable */ #define IER0_TX_INTE_1 0x80 /* channel 1 transmitter status enable */ #define IER0_MASK_0 0x0f /* channel 0 bits */ #define IER0_MASK_1 0xf0 /* channel 1 bits */ /* * Interrupt enable register 1 (IER1) bits. */ #define IER1_RX_DMERE_0 0x01 /* channel 0 receive DMA error enable */ #define IER1_RX_DME_0 0x02 /* channel 0 receive DMA finished enable */ #define IER1_TX_DMERE_0 0x04 /* channel 0 transmit DMA error enable */ #define IER1_TX_DME_0 0x08 /* channel 0 transmit DMA finished enable */ #define IER1_RX_DMERE_1 0x10 /* channel 1 receive DMA error enable */ #define IER1_RX_DME_1 0x20 /* channel 1 receive DMA finished enable */ #define IER1_TX_DMERE_1 0x40 /* channel 1 transmit DMA error enable */ #define IER1_TX_DME_1 0x80 /* channel 1 transmit DMA finished enable */ #define IER1_MASK_0 0x0f /* channel 0 bits */ #define IER1_MASK_1 0xf0 /* channel 1 bits */ /* * Interrupt enable register 2 (IER2) bits. */ #define IER2_RX_TME_0 0x10 /* channel 0 receive timer enable */ #define IER2_TX_TME_0 0x20 /* channel 0 transmit timer enable */ #define IER2_RX_TME_1 0x40 /* channel 1 receive timer enable */ #define IER2_TX_TME_1 0x80 /* channel 1 transmit timer enable */ #define IER2_MASK_0 0x30 /* channel 0 bits */ #define IER2_MASK_1 0xc0 /* channel 1 bits */ /* * Control register (CTL) bits. */ #define CTL_RTS_INV 0x01 /* RTS control bit (inverted) */ #define CTL_SYNCLD 0x04 /* load SYN characters */ #define CTL_BRK 0x08 /* async: send break */ #define CTL_IDLE_MARK 0 /* HDLC: when idle, transmit mark */ #define CTL_IDLE_PTRN 0x10 /* HDLC: when idle, transmit an idle pattern */ #define CTL_UDRN_ABORT 0 /* HDLC: on underrun - abort */ #define CTL_UDRN_FCS 0x20 /* HDLC: on underrun - send FCS/flag */ /* * Command register (CMD) values. */ #define CMD_TX_RESET 001 /* reset: disable, clear buffer/status/BRK */ #define CMD_TX_ENABLE 002 /* transmitter enable */ #define CMD_TX_DISABLE 003 /* transmitter disable */ #define CMD_TX_CRC_INIT 004 /* initialize CRC calculator */ #define CMD_TX_EOM_CHAR 006 /* set end-of-message char */ #define CMD_TX_ABORT 007 /* abort transmission (HDLC mode) */ #define CMD_TX_MPON 010 /* transmit char with MP bit on (async) */ #define CMD_TX_CLEAR 011 /* clear the transmit buffer */ #define CMD_RX_RESET 021 /* reset: disable, clear buffer/status */ #define CMD_RX_ENABLE 022 /* receiver enable */ #define CMD_RX_DISABLE 023 /* receiver disable */ #define CMD_RX_CRC_INIT 024 /* initialize CRC calculator */ #define CMD_RX_REJECT 025 /* reject current message (sync mode) */ #define CMD_RX_SRCH_MP 026 /* skip all until the char witn MP bit on */ #define CMD_NOOP 000 /* continue current operation */ #define CMD_CHAN_RESET 041 /* init registers, disable/clear RX/TX */ #define CMD_SEARCH_MODE 061 /* set the ADPLL to search mode */ /* * Status register 0 (ST0) bits. */ #define ST0_RX_RDY 0x01 /* receiver ready */ #define ST0_TX_RDY 0x02 /* transmitter ready */ #define ST0_RX_INT 0x40 /* receiver status interrupt */ #define ST0_TX_INT 0x80 /* transmitter status interrupt */ /* * Status register 1 (ST1) bits. */ #define ST1_CDCD 0x04 /* carrier changed */ #define ST1_CCTS 0x08 /* CTS changed */ #define ST1_IDL 0x40 /* transmitter idle, ro */ #define ST1_ASYNC_BRKE 0x01 /* break end detected */ #define ST1_ASYNC_BRKD 0x02 /* break start detected */ #define ST1_ASYNC_BITS "\20\1brke\2brkd\3cdcd\4ccts\7idl" #define ST1_HDLC_IDLD 0x01 /* idle sequence start detected */ #define ST1_HDLC_ABTD 0x02 /* abort sequence start detected */ #define ST1_HDLC_FLGD 0x10 /* flag detected */ #define ST1_HDLC_UDRN 0x80 /* underrun detected */ #define ST1_HDLC_BITS "\20\1idld\2abtd\3cdcd\4ccts\5flgd\7idl\10udrn" /* * Status register 2 (ST2) bits. */ #define ST2_OVRN 0x08 /* overrun error detected */ #define ST2_ASYNC_FRME 0x10 /* framing error detected */ #define ST2_ASYNC_PE 0x20 /* parity error detected */ #define ST2_ASYNC_PMP 0x40 /* parity/MP bit = 1 */ #define ST2_ASYNC_BITS "\20\4ovrn\5frme\6pe\7pmp" #define ST2_HDLC_CRCE 0x04 /* CRC error detected */ #define ST2_HDLC_RBIT 0x10 /* residual bit frame detected */ #define ST2_HDLC_ABT 0x20 /* frame with abort end detected */ #define ST2_HDLC_SHRT 0x40 /* short frame detected */ #define ST2_HDLC_EOM 0x80 /* receive frame end detected */ #define ST2_HDLC_BITS "\20\3crce\4ovrn\5rbit\6abt\7shrt\10eom" /* * Status register 3 (ST3) bits. */ #define ST3_RX_ENABLED 0x01 /* receiver is enabled */ #define ST3_TX_ENABLED 0x02 /* transmitter is enabled */ #define ST3_DCD_INV 0x04 /* DCD input line inverted */ #define ST3_CTS_INV 0x08 /* CTS input line inverted */ #define ST3_ASYNC_BITS "\20\1rx\2tx\3nodcd\4nocts" #define ST3_HDLC_SEARCH 0x10 /* ADPLL search mode */ #define ST3_HDLC_TX 0x20 /* channel is transmitting data */ #define ST3_HDLC_BITS "\20\1rx\2tx\3nodcd\4nocts\5search\6txact" /* * Frame status register (FST) bits, HDLC mode only. */ #define FST_CRCE 0x04 /* CRC error detected */ #define FST_OVRN 0x08 /* overrun error detected */ #define FST_RBIT 0x10 /* residual bit frame detected */ #define FST_ABT 0x20 /* frame with abort end detected */ #define FST_SHRT 0x40 /* short frame detected */ #define FST_EOM 0x80 /* frame end flag */ #define FST_EOT 0x01 /* end of transfer, transmit only */ /* * Interrupt enable register 0 (IE0) bits. */ #define IE0_RX_RDYE 0x01 /* receiver ready interrupt enable */ #define IE0_TX_RDYE 0x02 /* transmitter ready interrupt enable */ #define IE0_RX_INTE 0x40 /* receiver status interrupt enable */ #define IE0_TX_INTE 0x80 /* transmitter status interrupt enable */ /* * Interrupt enable register 1 (IE1) bits. */ #define IE1_CDCDE 0x04 /* carrier changed */ #define IE1_CCTSE 0x08 /* CTS changed */ #define IE1_IDLE 0x40 /* transmitter idle, ro */ #define IE1_ASYNC_BRKEE 0x01 /* break end detected */ #define IE1_ASYNC_BRKDE 0x02 /* break start detected */ #define IE1_HDLC_IDLDE 0x01 /* idle sequence start detected */ #define IE1_HDLC_ABTDE 0x02 /* abort sequence start detected */ #define IE1_HDLC_FLGDE 0x10 /* flag detected */ #define IE1_HDLC_UDRNE 0x80 /* underrun detected */ /* * Interrupt enable register 2 (IE2) bits. */ #define IE2_OVRNE 0x08 /* overrun error detected */ #define IE2_ASYNC_FRMEE 0x10 /* framing error detected */ #define IE2_ASYNC_PEE 0x20 /* parity error detected */ #define IE2_ASYNC_PMPE 0x40 /* parity/MP bit = 1 */ #define IE2_HDLC_CRCEE 0x04 /* CRC error detected */ #define IE2_HDLC_RBITE 0x10 /* residual bit frame detected */ #define IE2_HDLC_ABTE 0x20 /* frame with abort end detected */ #define IE2_HDLC_SHRTE 0x40 /* short frame detected */ #define IE2_HDLC_EOME 0x80 /* receive frame end detected */ /* * Frame interrupt enable register (FIE) bits, HDLC mode only. */ #define FIE_EOMFE 0x80 /* receive frame end detected */ /* * Current status register (CST0,CST1) bits. * For other bits, see ST2. */ #define CST0_CDE 0x0001 /* data present on top of FIFO */ #define CST1_CDE 0x0100 /* data present on second stage of FIFO */ /* * Receive/transmit clock source register (RXS/TXS) bits. */ #define CLK_MASK 0x70 /* RXC/TXC clock input mask */ #define CLK_LINE 0x00 /* RXC/TXC line input */ #define CLK_INT 0x40 /* internal baud rate generator */ #define CLK_RXS_LINE_NS 0x20 /* RXC line with noise suppression */ #define CLK_RXS_DPLL_INT 0x60 /* ADPLL based on internal BRG */ #define CLK_RXS_DPLL_LINE 0x70 /* ADPLL based on RXC line */ #define CLK_TXS_RECV 0x60 /* receive clock */ /* * DMA status register (DSR) bits. */ #define DSR_DMA_DISABLE 0x00 /* disable DMA channel */ #define DSR_DMA_ENABLE 0x02 /* enable DMA channel */ #define DSR_DMA_CONTINUE 0x01 /* do not enable/disable DMA channel */ #define DSR_CHAIN_COF 0x10 /* counter overflow */ #define DSR_CHAIN_BOF 0x20 /* buffer overflow/underflow */ #define DSR_CHAIN_EOM 0x40 /* frame transfer completed */ #define DSR_EOT 0x80 /* transfer completed */ #define DSR_BITS "\20\1cont\2enab\5cof\6bof\7eom\10eot" /* * DMA mode register (DMR) bits. */ #define DMR_CHAIN_CNTE 0x02 /* enable frame interrupt counter (FCT) */ #define DMR_CHAIN_NF 0x04 /* multi-frame block chain */ #define DMR_TMOD 0x10 /* chained-block transfer mode */ /* * DMA interrupt enable register (DIR) bits. */ #define DIR_CHAIN_COFE 0x10 /* counter overflow */ #define DIR_CHAIN_BOFE 0x20 /* buffer overflow/underflow */ #define DIR_CHAIN_EOME 0x40 /* frame transfer completed */ #define DIR_EOTE 0x80 /* transfer completed */ /* * DMA command register (DCR) values. */ #define DCR_ABORT 1 /* software abort: initialize DMA channel */ #define DCR_CLEAR 2 /* clear FCT and EOM bit of DSR */ /* * DMA master enable register (DME) bits. */ #define DME_ENABLE 0x80 /* enable DMA master operation */ /* * Timer control/status register (TCSR) bits. */ #define TCSR_ENABLE 0x10 /* timer starts incrementing */ #define TCSR_INTR 0x40 /* timer interrupt enable */ #define TCSR_MATCH 0x80 /* TCNT and TCONR are equal */ /* * Timer expand prescale register (TEPR) values. */ #define TEPR_1 0 /* sysclk/8 */ #define TEPR_2 1 /* sysclk/8/2 */ #define TEPR_4 2 /* sysclk/8/4 */ #define TEPR_8 3 /* sysclk/8/8 */ #define TEPR_16 4 /* sysclk/8/16 */ #define TEPR_32 5 /* sysclk/8/32 */ #define TEPR_64 6 /* sysclk/8/64 */ #define TEPR_128 7 /* sysclk/8/128 */