/* $OpenBSD: spifreg.h,v 1.5 1999/04/22 12:33:19 jason Exp $ */ /* * Copyright (c) 1999 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. */ struct ppcregs { volatile u_int8_t in_pdata; /* input data reg */ volatile u_int8_t in_pstat; /* input status reg */ volatile u_int8_t in_pctrl; /* input control reg */ volatile u_int8_t in_pweird; /* input weird reg */ volatile u_int8_t out_pdata; /* output data reg */ volatile u_int8_t out_pstat; /* output status reg */ volatile u_int8_t out_pctrl; /* output control reg */ volatile u_int8_t out_pweird; /* output weird reg */ volatile u_int8_t _unused[500]; /* unused space */ volatile u_int8_t iack_pdata; /* intr-ack data reg */ volatile u_int8_t iack_pstat; /* intr-ack status reg */ volatile u_int8_t iack_pctrl; /* intr-ack control reg */ volatile u_int8_t iack_pweird; /* intr-ack weird reg */ }; /* Parallel Status: read only */ #define PPC_PSTAT_ERROR 0x08 /* error */ #define PPC_PSTAT_SELECT 0x10 /* select */ #define PPC_PSTAT_PAPER 0x20 /* paper out */ #define PPC_PSTAT_ACK 0x40 /* ack */ #define PPC_PSTAT_BUSY 0x80 /* busy */ /* Parallel Control: read/write */ #define PPC_CTRL_STROBE 0x01 /* strobe, 1=drop strobe */ #define PPC_CTRL_AFX 0x02 /* auto form-feed */ #define PPC_CTRL_INIT 0x04 /* init, 1=enable printer */ #define PPC_CTRL_SLCT 0x08 /* SLC, 1=select printer */ #define PPC_CTRL_IRQE 0x10 /* IRQ, 1=enable intrs */ #define PPC_CTRL_OUTPUT 0x20 /* direction: 1=ppc out */ /* * The 'stc' is a Cirrus Logic CL-CD180 (either revision B or revision C) */ struct stcregs { volatile u_int8_t _unused0[1]; /* 0x00 unused */ volatile u_int8_t ccr; /* channel command reg */ volatile u_int8_t srer; /* service req enable reg */ volatile u_int8_t cor1; /* channel option reg 1 */ volatile u_int8_t cor2; /* channel option reg 2 */ volatile u_int8_t cor3; /* channel option reg 3 */ volatile u_int8_t ccsr; /* channel cntrl status reg */ volatile u_int8_t rdcr; /* rx data count reg */ volatile u_int8_t _unused1[1]; /* 0x08 unused */ volatile u_int8_t schr1; /* special char reg 1 */ volatile u_int8_t schr2; /* special char reg 2 */ volatile u_int8_t schr3; /* special char reg 3 */ volatile u_int8_t schr4; /* special char reg 4 */ volatile u_int8_t _unused2[3]; /* 0x0d - 0x0f unused */ volatile u_int8_t mcor1; /* modem change option reg 1 */ volatile u_int8_t mcor2; /* modem change option reg 2 */ volatile u_int8_t mcr; /* modem change reg */ volatile u_int8_t _unused3[5]; /* 0x13 - 0x17 unused */ volatile u_int8_t rtpr; /* rx timeout period reg */ volatile u_int8_t _unused4[7]; volatile u_int8_t _unused5[8]; /* 0x19 - 0x27 unused */ volatile u_int8_t msvr; /* modem signal value reg */ volatile u_int8_t msvrts; /* modem sig value rts reg */ volatile u_int8_t msvdtr; /* modem sig value dtr reg */ volatile u_int8_t _unused6[5]; /* 0x2b - 0x2f unused */ volatile u_int8_t _unused7[1]; /* 0x30 unused */ volatile u_int8_t rbprh; /* rx bit rate period reg hi */ volatile u_int8_t rbprl; /* rx bit rate period reg lo */ volatile u_int8_t rbr; /* rx bit reg */ volatile u_int8_t _unused8[5]; /* 0x34 - 0x38 unused */ volatile u_int8_t tbprh; /* tx bit rate period reg hi */ volatile u_int8_t tbprl; /* tx bit rate period reg lo */ volatile u_int8_t _unused9[5]; /* 0x34 - 0x38 unused */ volatile u_int8_t gsvr; /* global service vector reg */ volatile u_int8_t gscr1; /* global service chan reg 1 */ volatile u_int8_t gscr2; /* global service chan reg 2 */ volatile u_int8_t gscr3; /* global service chan reg 3 */ volatile u_int8_t _unused10[12]; /* 0x44 - 0x4f unused */ volatile u_int8_t _unused11[16]; /* 0x50 - 0x5f unused */ volatile u_int8_t _unused12[1]; /* 0x60 unused */ volatile u_int8_t msmr; /* modem service match reg */ volatile u_int8_t tsmr; /* tx service match reg */ volatile u_int8_t rsmr; /* rx service match reg */ volatile u_int8_t car; /* channel access reg */ volatile u_int8_t srsr; /* service request stat reg */ volatile u_int8_t srcr; /* service request conf reg */ volatile u_int8_t _unused13[4]; /* 0x67 - 0x6a unused */ volatile u_int8_t gfrcr; /* global firmwr rev code reg */ volatile u_int8_t _unused14[4]; /* 0x6c - 0x6f unused */ volatile u_int8_t pprh; /* prescalar period reg hi */ volatile u_int8_t pprl; /* prescalar period reg lo */ volatile u_int8_t _unused15[3]; /* 0x72 - 0x74 unused */ volatile u_int8_t mrar; /* modem request ack reg */ volatile u_int8_t trar; /* tx request ack reg */ volatile u_int8_t rrar; /* rx request ack reg */ volatile u_int8_t rdr; /* rx data reg */ volatile u_int8_t _unused16[1]; /* 0x79 unused */ volatile u_int8_t rcsr; /* rx char status reg */ volatile u_int8_t tdr; /* tx data reg */ volatile u_int8_t _unused17[3]; /* 0x7c - 0x7e unused */ volatile u_int8_t eosrr; /* end of service req reg */ }; /* Global Firmware Revision Code Register (rw) */ #define CD180_GFRCR_REV_B 0x81 /* CL-CD180B */ #define CD180_GFRCR_REV_C 0x82 /* CL-CD180C */ /* Service Request Configuration Register (rw) (CD180C or higher) */ #define CD180_SRCR_PKGTYP 0x80 /* pkg type,0=PLCC,1=PQFP */ #define CD180_SRCR_REGACKEN 0x40 /* register ack enable */ #define CD180_SRCR_DAISYEN 0x20 /* daisy chain enable */ #define CD180_SRCR_GLOBPRI 0x10 /* global priority */ #define CD180_SRCR_UNFAIR 0x08 /* use unfair interrupts */ #define CD180_SRCR_AUTOPRI 0x02 /* automatic priority */ #define CD180_SRCR_PRISEL 0x01 /* select rx/tx as high pri */ /* Prescalar Period Register High (rw) */ #define CD180_PPRH 0xf0 /* high byte */ #define CD180_PPRL 0x00 /* low byte */ /* Global Service Vector Register (rw) */ /* Modem Request Acknowledgement Register (ro) (and IACK equivalent) */ /* Receive Request Acknowledgement Register (ro) (and IACK equivalent) */ /* Transmit Request Acknowledgement Register (ro) (and IACK equivalent) */ #define CD180_GSVR_USERMASK 0xf8 /* user defined bits */ #define CD180_GSVR_IMASK 0x07 /* interrupt type mask */ #define CD180_GSVR_NOREQUEST 0x00 /* no request pending */ #define CD180_GSVR_STATCHG 0x01 /* modem signal change */ #define CD180_GSVR_TXDATA 0x02 /* tx service request */ #define CD180_GSVR_RXGOOD 0x03 /* rx service request */ #define CD180_GSVR_reserved1 0x04 /* reserved */ #define CD180_GSVR_reserved2 0x05 /* reserved */ #define CD180_GSVR_reserved3 0x06 /* reserved */ #define CD180_GSVR_RXEXCEPTION 0x07 /* rx exception request */ /* Service Request Status Register (ro) (CD180C and higher) */ #define CD180_SRSR_MREQINT 0x01 /* modem request internal */ #define CD180_SRSR_MREQEXT 0x02 /* modem request external */ #define CD180_SRSR_TREQINT 0x04 /* tx request internal */ #define CD180_SRSR_TREQEXT 0x08 /* tx request external */ #define CD180_SRSR_RREQINT 0x10 /* rx request internal */ #define CD180_SRSR_RREQEXT 0x20 /* rx request external */ #define CD180_SRSR_ILV_MASK 0xc0 /* internal service context */ #define CD180_SRSR_ILV_NONE 0x00 /* not in service context */ #define CD180_SRSR_ILV_RX 0xc0 /* in rx service context */ #define CD180_SRSR_ILV_TX 0x80 /* in tx service context */ #define CD180_SRSR_ILV_MODEM 0x40 /* in modem service context */ /* Global Service Channel Register 1,2,3 (rw) */ #define CD180_GSCR_CHANNEL(gscr) (((gscr) >> 2) & 7) /* Receive Data Count Register (ro) */ #define CD180_RDCR_MASK 0x0f /* mask for fifo length */ /* Receive Character Status Register (ro) */ #define CD180_RCSR_TO 0x80 /* time out */ #define CD180_RCSR_SCD2 0x40 /* special char detect 2 */ #define CD180_RCSR_SCD1 0x20 /* special char detect 1 */ #define CD180_RCSR_SCD0 0x10 /* special char detect 0 */ #define CD180_RCSR_BE 0x08 /* break exception */ #define CD180_RCSR_PE 0x04 /* parity exception */ #define CD180_RCSR_FE 0x02 /* framing exception */ #define CD180_RCSR_OE 0x01 /* overrun exception */ /* Service Request Enable Register (rw) */ #define CD180_SRER_DSR 0x80 /* DSR service request */ #define CD180_SRER_CD 0x40 /* CD service request */ #define CD180_SRER_CTS 0x20 /* CTS service request */ #define CD180_SRER_RXD 0x10 /* RXD service request */ #define CD180_SRER_RXSCD 0x08 /* RX special char request */ #define CD180_SRER_TXD 0x04 /* TX ready service request */ #define CD180_SRER_TXE 0x02 /* TX empty service request */ #define CD180_SRER_NNDT 0x01 /* No new data timeout req */ /* Channel Command Register (rw) */ /* Reset Channel Command */ #define CD180_CCR_CMD_RESET 0x80 /* chip/channel reset */ #define CD180_CCR_RESETALL 0x01 /* global reset */ #define CD180_CCR_RESETCHAN 0x00 /* current channel reset */ /* Channel Option Register Command */ #define CD180_CCR_CMD_COR 0x40 /* channel opt reg changed */ #define CD180_CCR_CORCHG1 0x02 /* cor1 has changed */ #define CD180_CCR_CORCHG2 0x04 /* cor2 has changed */ #define CD180_CCR_CORCHG3 0x08 /* cor3 has changed */ /* Send Special Character Command */ #define CD180_CCR_CMD_SPC 0x20 /* send special chars changed */ #define CD180_CCR_SSPC0 0x01 /* send special char 0 change */ #define CD180_CCR_SSPC1 0x02 /* send special char 1 change */ #define CD180_CCR_SSPC2 0x04 /* send special char 2 change */ /* Channel Control Command */ #define CD180_CCR_CMD_CHAN 0x10 /* channel control command */ #define CD180_CCR_CHAN_TXEN 0x08 /* enable channel tx */ #define CD180_CCR_CHAN_TXDIS 0x04 /* disable channel tx */ #define CD180_CCR_CHAN_RXEN 0x02 /* enable channel rx */ #define CD180_CCR_CHAN_RXDIS 0x01 /* disable channel rx */ /* Channel Option Register 1 (rw) */ #define CD180_COR1_EVENPAR 0x00 /* even parity */ #define CD180_COR1_ODDPAR 0x80 /* odd parity */ #define CD180_COR1_PARMODE_NO 0x00 /* no parity */ #define CD180_COR1_PARMODE_FORCE 0x20 /* force (odd=1, even=0) */ #define CD180_COR1_PARMODE_NORMAL 0x40 /* normal parity mode */ #define CD180_COR1_PARMODE_NA 0x60 /* notused */ #define CD180_COR1_IGNPAR 0x10 /* ignore parity */ #define CD180_COR1_STOP1 0x00 /* 1 stop bit */ #define CD180_COR1_STOP15 0x04 /* 1.5 stop bits */ #define CD180_COR1_STOP2 0x08 /* 2 stop bits */ #define CD180_COR1_STOP25 0x0c /* 2.5 stop bits */ #define CD180_COR1_CS5 0x00 /* 5 bit characters */ #define CD180_COR1_CS6 0x01 /* 6 bit characters */ #define CD180_COR1_CS7 0x02 /* 7 bit characters */ #define CD180_COR1_CS8 0x03 /* 8 bit characters */ /* Channel Option Register 2 (rw) */ #define CD180_COR2_IXM 0x80 /* implied xon mode */ #define CD180_COR2_TXIBE 0x40 /* tx in-band flow control */ #define CD180_COR2_ETC 0x20 /* embedded tx command enbl */ #define CD180_COR2_LLM 0x10 /* local loopback mode */ #define CD180_COR2_RLM 0x08 /* remote loopback mode */ #define CD180_COR2_RTSAO 0x04 /* RTS automatic output enbl */ #define CD180_COR2_CTSAE 0x02 /* CTS automatic enable */ #define CD180_COR2_DSRAE 0x01 /* DSR automatic enable */ /* Channel Option Register 3 (rw) */ #define CD180_COR3_XON2 0x80 /* XON char in spc1&3 */ #define CD180_COR3_XON1 0x00 /* XON char in spc1 */ #define CD180_COR3_XOFF2 0x40 /* XOFF char in spc2&4 */ #define CD180_COR3_XOFF1 0x00 /* XOFF char in spc2 */ #define CD180_COR3_FCT 0x20 /* flow control transparency */ #define CD180_COR3_SCDE 0x10 /* special char recognition */ #define CD180_COR3_RXFIFO_MASK 0x0f /* rx fifo threshold */ /* Channel Control Status Register (ro) */ #define CD180_CCSR_RXEN 0x80 /* rx is enabled */ #define CD180_CCSR_RXFLOFF 0x40 /* rx flow-off */ #define CD180_CCSR_RXFLON 0x20 /* rx flow-on */ #define CD180_CCSR_TXEN 0x08 /* tx is enabled */ #define CD180_CCSR_TXFLOFF 0x04 /* tx flow-off */ #define CD180_CCSR_TXFLON 0x02 /* tx flow-on */ /* Receiver Bit Register (ro) */ #define CD180_RBR_RXD 0x40 /* state of RxD pin */ #define CD180_RBR_STARTHUNT 0x20 /* looking for start bit */ /* Modem Change Register (rw) */ #define CD180_MCR_DSR 0x80 /* DSR changed */ #define CD180_MCR_CD 0x40 /* CD changed */ #define CD180_MCR_CTS 0x20 /* CTS changed */ /* Modem Change Option Register 1 (rw) */ #define CD180_MCOR1_DSRZD 0x80 /* catch 0->1 DSR changes */ #define CD180_MCOR1_CDZD 0x40 /* catch 0->1 CD changes */ #define CD180_MCOR1_CTSZD 0x40 /* catch 0->1 CTS changes */ #define CD180_MCOR1_DTRTHRESH 0x0f /* DTR threshold mask */ /* Modem Change Option Register 2 (rw) */ #define CD180_MCOR2_DSROD 0x80 /* catch 1->0 DSR changes */ #define CD180_MCOR2_CDOD 0x40 /* catch 1->0 CD changes */ #define CD180_MCOR2_CTSOD 0x20 /* catch 1->0 CTS changes */ /* Modem Signal Value Register (rw) */ #define CD180_MSVR_DSR 0x80 /* DSR input state */ #define CD180_MSVR_CD 0x40 /* CD input state */ #define CD180_MSVR_CTS 0x20 /* CTS input state */ #define CD180_MSVR_DTR 0x02 /* DTR output state */ #define CD180_MSVR_RTS 0x01 /* RTS output state */ /* Modem Signal Value Register - Request To Send (w) (CD180C and higher) */ #define CD180_MSVRTS_RTS 0x01 /* RTS signal value */ /* Modem Signal Value Register - Data Terminal Ready (w) (CD180C and higher) */ #define CD180_MSVDTR_DTR 0x02 /* DTR signal value */ /* * The register map for the SUNW,spif looks something like: * Offset: Function: * 0000 - 03ff Boot ROM * 0400 - 0408 dtr latches (one per port) * 0409 - 07ff unused * 0800 - 087f CD180 registers (normal mapping) * 0880 - 0bff unused * 0c00 - 0c7f CD180 registers (*iack mapping) * 0c80 - 0dff unused * 0e00 - 1fff PPC registers * * One note about the DTR latches: The values stored there are reversed. * By writing a 1 to the latch, DTR is lowered, and by writing a 0, DTR * is raised. The latches cannot be read, and no other value can be written * there or the system will crash due to "excessive bus loading (see * SBus loading and capacitance spec)" * * The *iack registers are read/written with the IACK bit set. When * the interrupt routine starts, it reads the MRAR, TRAR, and RRAR registers * from this mapping. This signals an interrupt acknowlegement cycle. * (NOTE: these are not really the MRAR, TRAR, and RRAR... They are copies * of the GSVR, I just mapped them to the same location as the mrar, trar, * and rrar because it seemed appropriate). */ struct spifregs { volatile u_int8_t _unused1[1024]; /* 0x000-0x3ff unused */ volatile u_int8_t dtrlatch[8]; /* per port dtr latch */ volatile u_int8_t _unused2[1016]; /* 0x409-0x7ff unused */ struct stcregs stc; /* regular cd-180 regs */ volatile u_int8_t _unused3[896]; /* 0x880-0xbff unused */ struct stcregs istc; /* *iack cd-180 regs */ volatile u_int8_t _unused4[384]; /* 0xc80-0xdff unused */ struct ppcregs ppc; /* parallel port regs */ }; /* * The mapping of minor device number -> card and port is done as * follows by default: * * +---+---+---+---+---+---+---+---+ * | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 | * +---+---+---+---+---+---+---+---+ * | | | | | | | | * | | | | | +---+---+---> port number * | | | | | * | | | | +---------------> unused * | | | | * | | | +-------------------> dialout (on tty ports) * | | | * | | +-----------------------> unused * | | * +---+---------------------------> card number * */ #define SPIF_MAX_CARDS 4 #define SPIF_MAX_TTY 8 #define SPIF_MAX_BPP 1 /* * device selectors */ #define SPIF_CARD(x) ((minor(x) >> 6) & 0x03) #define SPIF_PORT(x) (minor(x) & 0x07) #define STTY_DIALOUT(x) (minor(x) & 0x10) #define STTY_RX_FIFO_THRESHOLD 6 #define STTY_RX_DTR_THRESHOLD 7 #define CD180_TX_FIFO_SIZE 8 /* 8 chars of fifo */ /* * These are the offsets of the MRAR, TRAR, and RRAR in *IACK space. * The high bit must be set as per specs for the MSMR, TSMR, and RSMR. */ #define SPIF_MSMR 0xf5 /* offset of MRAR | 0x80 */ #define SPIF_TSMR 0xf6 /* offset of TRAR | 0x80 */ #define SPIF_RSMR 0xf7 /* offset of RRAR | 0x80 */ /* * "verosc" node tells which oscillator we have. */ #define SPIF_OSC9 1 /* 9.8304 Mhz */ #define SPIF_OSC10 2 /* 10Mhz */ /* * There are two interrupts, serial gets interrupt[0], and parallel * gets interrupt[1] */ #define SERIAL_INTR 0 #define PARALLEL_INTR 1 /* * spif tty flags */ #define STTYF_CDCHG 0x01 /* carrier changed */ #define STTYF_RING_OVERFLOW 0x02 /* ring buffer overflowed */ #define STTYF_DONE 0x04 /* done... flush buffers */ #define STTYF_SET_BREAK 0x08 /* set break signal */ #define STTYF_CLR_BREAK 0x10 /* clear break signal */ #define STTYF_STOP 0x20 /* stopped */ #define STTY_RBUF_SIZE (2 * 512)