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/* $OpenBSD: sab82532reg.h,v 1.1 2001/10/28 02:19:16 jason Exp $ */
/*
* Copyright (c) 2001 Jason L. Wright (jason@thought.net)
* 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. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Jason L. Wright
* 4. 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.
*/
/*
* Register definitions for SAB82532 based on "Enhanced Serial Communication
* Controller ESCC2 Version 3.2 User's Manual 07.96" from:
* http://www.infineon.com
*/
#define SAB_NCHAN 2 /* number of channels */
#define SAB_CHANLEN 0x40 /* length of channel register set */
#define SAB_CHAN_A 0x00 /* channel A register offset */
#define SAB_CHAN_B 0x40 /* channel B register offset */
#define SAB_RFIFO 0x00 /* r: rx fifo */
#define SAB_XFIFO 0x00 /* w: tx fifo */
#define SAB_STAR 0x20 /* r: status register */
#define SAB_CMDR 0x20 /* w: command register */
#define SAB_MODE 0x22 /* rw: mode register */
#define SAB_TIMR 0x23 /* rw: timer register */
#define SAB_XON 0x24 /* rw: xon character */
#define SAB_XOFF 0x25 /* rw: xoff character */
#define SAB_TCR 0x26 /* rw: termination character */
#define SAB_DAFO 0x27 /* rw: data format */
#define SAB_RFC 0x28 /* rw: rfifo control register */
#define SAB_RBCL 0x2a /* r: rx byte count low */
#define SAB_TBCL 0x2a /* w: tx byte count low */
#define SAB_RBCH 0x2b /* r: rx byte count high */
#define SAB_XBCH 0x2b /* w: tx byte count high */
#define SAB_CCR0 0x2c /* rw: channel configuration register 0 */
#define SAB_CCR1 0x2d /* rw: channel configuration register 1 */
#define SAB_CCR2 0x2e /* rw: channel configuration register 2 */
#define SAB_CCR3 0x2f /* rw: channel configuration register 3 */
#define SAB_TSAX 0x30 /* w: time-slot assignment register tx */
#define SAB_TSAR 0x31 /* w: time-slot assignment register rx */
#define SAB_XCCR 0x32 /* w: tx channel capacity register */
#define SAB_RCCR 0x33 /* w: receive channel capacity register */
#define SAB_VSTR 0x34 /* r: version status */
#define SAB_BGR 0x34 /* w: baud rate generator */
#define SAB_TIC 0x35 /* w: transmit immediate character */
#define SAB_MXN 0x36 /* w: mask xon character */
#define SAB_MXF 0x37 /* w: mask xoff character */
#define SAB_GIS 0x38 /* r: global interrupt status */
#define SAB_IVA 0x38 /* w: interrupt vector address */
#define SAB_IPC 0x39 /* rw: interrupt port configuration */
#define SAB_ISR0 0x3a /* r: interrupt status 0 */
#define SAB_IMR0 0x3a /* w: interrupt mask 0 */
#define SAB_ISR1 0x3b /* r: interrupt status 1 */
#define SAB_IMR1 0x3b /* w: interrupt mask 1 */
#define SAB_PVR 0x3c /* rw: port value register */
#define SAB_PIS 0x3d /* r: port interrupt status */
#define SAB_PIM 0x3d /* w: port interrupt mask */
#define SAB_PCR 0x3e /* w: port configuration register */
#define SAB_CCR4 0x3f /* rw: channel configuration register 4 */
/* SAB_STAR: status register */
#define SAB_STAR_XDOV 0x80 /* transmit data overflow */
#define SAB_STAR_XFW 0x40 /* transmit fifo write enable */
#define SAB_STAR_RFNE 0x20 /* rfifo not empty */
#define SAB_STAR_FCS 0x10 /* flow control status */
#define SAB_STAR_TEC 0x08 /* tx immediate char is executing */
#define SAB_STAR_CEC 0x04 /* command is executing */
#define SAB_STAR_CTS 0x02 /* cts status: 0:inactive/high,1:active/low */
/* SAB_CMDR: command register */
#define SAB_CMDR_RMC 0x80 /* receive message complete */
#define SAB_CMDR_RRES 0x40 /* receiver reset */
#define SAB_CMDR_RFRD 0x20 /* receive fifo read enable */
#define SAB_CMDR_STI 0x10 /* start timer */
#define SAB_CMDR_XF 0x08 /* transmit frame */
#define SAB_CMDR_XRES 0x01 /* transmit reset */
/* SAB_MODE: mode register */
#define SAB_MODE_FRTS 0x40 /* flow control using rts */
#define SAB_MODE_FCTS 0x20 /* flow control using cts */
#define SAB_MODE_FLON 0x10 /* flow control on */
#define SAB_MODE_RAC 0x08 /* receiver active */
#define SAB_MODE_RTS 0x04 /* request to send */
#define SAB_MODE_TRS 0x02 /* timer resolution */
#define SAB_MODE_TLP 0x01 /* test loop */
/* SAB_TIMR: timer register */
#define SAB_TIMR_CNT 0xe0 /* count mask */
#define SAB_TIMR_VAL 0x1f /* value mask */
/* SAB_DAFO: data format */
#define SAB_DAFO_XBRK 0x40 /* transmit break */
#define SAB_DAFO_STOP 0x20 /* stop bit: 0:1 bit, 1:2 bits */
#define SAB_DAFO_PAR1 0x10 /* parity 1, see below */
#define SAB_DAFO_PAR0 0x08 /* parity 0, see below */
#define SAB_DAFO_PARE 0x04 /* parity enable */
#define SAB_DAFO_CHL1 0x02 /* character length 1, see below */
#define SAB_DAFO_CHL0 0x01 /* character length 0, see below */
#define SAB_DAFO_CHL_CSIZE (SAB_DAFO_CHL1|SAB_DAFO_CHL0)
#define SAB_DAFO_CHL_CS5 (SAB_DAFO_CHL1|SAB_DAFO_CHL0)
#define SAB_DAFO_CHL_CS6 (SAB_DAFO_CHL1)
#define SAB_DAFO_CHL_CS7 (SAB_DAFO_CHL0)
#define SAB_DAFO_CHL_CS8 (0)
#define SAB_DAFO_PARMASK (SAB_DAFO_PAR1|SAB_DAFO_PAR0|SAB_DAFO_PARE)
#define SAB_DAFO_PAR_MARK (SAB_DAFO_PAR1|SAB_DAFO_PAR0|SAB_DAFO_PARE)
#define SAB_DAFO_PAR_EVEN (SAB_DAFO_PAR1|SAB_DAFO_PARE)
#define SAB_DAFO_PAR_ODD (SAB_DAFO_PAR0|SAB_DAFO_PARE)
#define SAB_DAFO_PAR_SPACE (SAB_DAFO_PARE)
#define SAB_DAFO_PAR_NONE (0)
/* SAB_RFC: rfifo control register */
#define SAB_RFC_DPS 0x40 /* disable parity storage */
#define SAB_RFC_DXS 0x20 /* disable storage of xon/xoff characters */
#define SAB_RFC_RFDF 0x10 /* rfifo data format: 0 data,1 data+stat */
#define SAB_RFC_RFTH1 0x08 /* rfifo threshold level 1, see below */
#define SAB_RFC_RFTH0 0x04 /* rfifo threshold level 0, see below */
#define SAB_RFC_TCDE 0x01 /* termination character detection enable */
#define SAB_RFC_RFTH_MASK (SAB_RFC_RFTH1|SAB_RFC_RFTH0)
#define SAB_RFC_RFTH_32CHAR (SAB_RFC_RFTH1|SAB_RFC_RFTH0)
#define SAB_RFC_RFTH_16CHAR (SAB_RFC_RFTH1)
#define SAB_RFC_RFTH_4CHAR (SAB_RFC_RFTH0)
#define SAB_RFC_RFTH_1CHAR (0)
/* SAB_RBCH: received byte count high */
#define SAB_RBCH_DMA 0x80 /* read back of XBCH DMA bit */
#define SAB_RBCH_CAS 0x20 /* read back of XBCH CAS bit */
#define SAB_RBCH_CNT 0x0f /* ms 4 bits of rx byte count (not used) */
/* SAB_XBCH: transmit byte count high */
#define SAB_XBCH_DMA 0x80 /* dma mode: 1:dma, 0:interrupt */
#define SAB_XBCH_CAS 0x20 /* carrier detect auto-start */
#define SAB_XBCH_XC 0x10 /* transmit continuously */
#define SAB_XBCH_CNT 0x0f /* ms 4 bits of tx byte count */
/* SAB_CCR0: channel configuration register 0 */
#define SAB_CCR0_PU 0x80 /* 0:power-down, 1:power-up */
#define SAB_CCR0_MCE 0x40 /* master clock enable */
#define SAB_CCR0_SC2 0x10 /* serial port config 2, see below */
#define SAB_CCR0_SC1 0x08 /* serial port config 1, see below */
#define SAB_CCR0_SC0 0x04 /* serial port config 0, see below */
#define SAB_CCR0_SM1 0x02 /* serial mode 1, see below */
#define SAB_CCR0_SM0 0x01 /* serial mode 0, see below */
#define SAB_CCR0_SC_MASK (SAB_CCR0_SC2|SAB_CCR0_SC1|SAB_CCR0_SC0)
#define SAB_CCR0_SC_NRZ (0)
#define SAB_CCR0_SC_NRZI (SAB_CCR0_SC1)
#define SAB_CCR0_SC_FM0 (SAB_CCR0_SC2)
#define SAB_CCR0_SC_FM1 (SAB_CCR0_SC2|SAB_CCR0_SC0)
#define SAB_CCR0_SC_MANCHESTER (SAB_CCR0_SC2|SAB_CCR0_SC1)
#define SAB_CCR0_SM_MASK (SAB_CCR0_SM1|SAB_CCR0_SM0)
#define SAB_CCR0_SM_DLC (0)
#define SAB_CCR0_SM_DLCLOOP (SAB_CCR0_SM0)
#define SAB_CCR0_SM_BISYNC (SAB_CCR0_SM1)
#define SAB_CCR0_SM_ASYNC (SAB_CCR0_SM1|SAB_CCR0_SM0)
/* SAB_CCR1: channel configuration register 1 */
#define SAB_CCR1_ODS 0x10 /* Output driver select:1:pushpull,0:odrain */
#define SAB_CCR1_BCR 0x08 /* bit clock rate: 1:async, 0:isochronous */
#define SAB_CCR1_CM2 0x04 /* clock mode 2, see below */
#define SAB_CCR1_CM1 0x02 /* clock mode 1, see below */
#define SAB_CCR1_CM0 0x01 /* clock mode 0, see below */
#define SAB_CCR1_CM_MASK (SAB_CCR1_CM2|SAB_CCR1_CM1|SAB_CCR1_CM0)
#define SAB_CCR1_CM_7 (SAB_CCR1_CM2|SAB_CCR1_CM1|SAB_CCR1_CM0)
/* SAB_CCR2: channel configuration register 2, depends on clock mode above */
/* clock mode 0a, 1, 4, 5 */
#define SAB_CCR2_SOC1 0x80 /* special output 1, below */
#define SAB_CCR2_SOC0 0x40 /* special output 0, below */
#define SAB_CCR2_SOC_MASK (SAB_CCR2_SOC1|SAB_CCR2_SOC0)
#define SAB_CCR2_SOC_RTSHIGH (SAB_CCR2_SOC1)
#define SAB_CCR2_SOC_RTSNORM (0)
#define SAB_CCR2_SOC_RTSRX (SAB_CCR2_SOC1|SAB_CCR2_SOC0)
/* clock mode 0b, 2, 3, 6, 7 */
#define SAB_CCR2_BR9 0x80 /* baud rate bit 9 */
#define SAB_CCR2_BR8 0x40 /* baud rate bit 8 */
#define SAB_CCR2_BDF 0x20 /* baud rate division factor: 0:1: 1:BRG */
#define SAB_CCR2_SSEL 0x10 /* clock source select */
/* clock mode 5 */
#define SAB_CCR2_XCS0 0x20 /* tx clock shift, bit 0 */
#define SAB_CCR2_RCS0 0x10 /* rx clock shift, bit 0 */
/* clock mode 0b, 2, 3, 4, 5, 6, 7 */
#define SAB_CCR2_TOE 0x08 /* tx clock output enable */
/* clock mode 0a, 0b, 1, 2, 3, 4, 5, 6, 7 */
#define SAB_CCR2_RWX 0x04 /* read/write exchange (dma mode only) */
#define SAB_CCR2_DIV 0x01 /* data inversion (nrz) */
/* SAB_CCR3: channel configuration register 3 (v2 or greater) */
#define SAB_CCR3_PSD 0x01 /* dpll phase shift disable (nrz/nrzi) */
/* SAB_TSAX: time-slot assignment register transmit (clock mode 5 only) */
#define SAB_TSAX_TSNX 0xfc /* time-slot number transmit */
#define SAB_TSAX_XCS2 0x02 /* transmit clock shift bit 2 */
#define SAB_TSAX_XCS1 0x01 /* transmit clock shift bit 1 */
/* SAB_TSAR: time-slot assignment register receive (clock mode 5 only) */
#define SAB_TSAR_TSNR 0xfc /* time-slot number receive */
#define SAB_TSAR_RCS2 0x02 /* receive clock shift bit 2 */
#define SAB_TSAR_RCS1 0x01 /* receive clock shift bit 1 */
/* SAB_VSTR: version status register */
#define SAB_VSTR_CD 0x80 /* carrier detect status */
#define SAB_VSTR_DPLA 0x40 /* dpll asynchronous */
#define SAB_VSTR_VMASK 0x0f /* chip version mask: */
#define SAB_VSTR_V_1 0x00 /* version 1 */
#define SAB_VSTR_V_2 0x01 /* version 2 */
#define SAB_VSTR_V_32 0x02 /* version 3.2 */
/* SAB_GIS: global interrupt status register */
#define SAB_GIS_PI 0x80 /* universal port interrupt */
#define SAB_GIS_ISA1 0x08 /* interrupt status a1 */
#define SAB_GIS_ISA0 0x04 /* interrupt status a0 */
#define SAB_GIS_ISB1 0x02 /* interrupt status b1 */
#define SAB_GIS_ISB0 0x01 /* interrupt status b0 */
/* SAB_IVA: interrupt vector address */
#define SAB_IVA_MASK 0xf8 /* interrupt vector address mask */
/* SAB_IPC: interrupt port configuration */
#define SAB_IPC_VIS 0x80 /* masked interrupt bits visible */
#define SAB_IPC_SLAMASK 0x18 /* slave address mask */
#define SAB_IPC_CASM 0x04 /* cascading mode */
#define SAB_IPC_ICMASK 0x03 /* port config mask: */
#define SAB_IPC_ICOD 0x00 /* open drain output */
#define SAB_IPC_ICPL 0x01 /* push/pull active low output */
#define SAB_IPC_ICPH 0x03 /* push/pull active high output */
/* SAB_ISR0: interrupt status 0 */
#define SAB_ISR0_TCD 0x80 /* termination character detected */
#define SAB_ISR0_TIME 0x40 /* time-out limit exceeded */
#define SAB_ISR0_PERR 0x20 /* parity error */
#define SAB_ISR0_FERR 0x10 /* framing error */
#define SAB_ISR0_PLLA 0x08 /* dpll asynchronous */
#define SAB_ISR0_CDSC 0x04 /* carrier detect status change */
#define SAB_ISR0_RFO 0x02 /* rfifo overflow */
#define SAB_ISR0_RPF 0x01 /* receive pool full */
/* SAB_ISR1: interrupt status 1 */
#define SAB_ISR1_BRK 0x80 /* break detected */
#define SAB_ISR1_BRKT 0x40 /* break terminated */
#define SAB_ISR1_ALLS 0x20 /* all sent */
#define SAB_ISR1_XOFF 0x10 /* xoff detected */
#define SAB_ISR1_TIN 0x08 /* timer interrupt */
#define SAB_ISR1_CSC 0x04 /* clear to send status change */
#define SAB_ISR1_XON 0x02 /* xon detected */
#define SAB_ISR1_XPR 0x01 /* transmit pool ready */
/* SAB_IMR0: interrupt mask 0 */
#define SAB_IMR0_TCD 0x80 /* termination character detected */
#define SAB_IMR0_TIME 0x40 /* time-out limit exceeded */
#define SAB_IMR0_PERR 0x20 /* parity error */
#define SAB_IMR0_FERR 0x10 /* framing error */
#define SAB_IMR0_PLLA 0x08 /* dpll asynchronous */
#define SAB_IMR0_CDSC 0x04 /* carrier detect status change */
#define SAB_IMR0_RFO 0x02 /* rfifo overflow */
#define SAB_IMR0_RPF 0x01 /* receive pool full */
/* SAB_ISR1: interrupt mask 1 */
#define SAB_IMR1_BRK 0x80 /* break detected */
#define SAB_IMR1_BRKT 0x40 /* break terminated */
#define SAB_IMR1_ALLS 0x20 /* all sent */
#define SAB_IMR1_XDU 0x10 /* xoff detected */
#define SAB_IMR1_TIN 0x08 /* timer interrupt */
#define SAB_IMR1_CSC 0x04 /* clear to send status change */
#define SAB_IMR1_XMR 0x02 /* xon detected */
#define SAB_IMR1_XPR 0x01 /* transmit pool ready */
/* SAB_PVR: port value register */
#define SAB_PVR_DSR_A 0x01 /* port A DSR */
#define SAB_PVR_DTR_A 0x02 /* port A DTR */
#define SAB_PVR_DTR_B 0x04 /* port B DTR */
#define SAB_PVR_DSR_B 0x08 /* port B DSR */
#define SAB_PVR_MAGIC 0x10 /* dunno... */
/* SAB_CCR4: channel configuration register 4 */
#define SAB_CCR4_MCK4 0x80 /* master clock divide by 4 */
#define SAB_CCR4_EBRG 0x40 /* enhanced baud rate generator mode */
#define SAB_CCR4_TST1 0x20 /* test pin */
#define SAB_CCR4_ICD 0x10 /* invert polarity of carrier detect */
/* Receive status byte */
#define SAB_RSTAT_PE 0x80 /* parity error */
#define SAB_RSTAT_FE 0x40 /* framing error */
#define SAB_RSTAT_PAR 0x01 /* parity bit */
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