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freebsd-dev/sys/dev/ppbus/ppbconf.h
Nicolas Souchu 20240fa3ad Distinguish EPP address/data register. Add EPP address register access to ppi. 
Change microseq offsets. Previously, offsets of the program counter where
added to the index of the current microinstruction. Make them rely on the
index of the next executed microinstruction.

Suggested by: Luigi Rizzo <luigi@labinfo.iet.unipi.it>
1999-01-30 15:35:39 +00:00

372 lines
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/*-
* Copyright (c) 1997, 1998 Nicolas Souchu
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``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 OR CONTRIBUTORS 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.
*
* $Id: ppbconf.h,v 1.12 1999/01/27 19:44:05 dillon Exp $
*
*/
#ifndef __PPBCONF_H
#define __PPBCONF_H
#include <sys/queue.h>
/*
* Parallel Port Bus sleep/wakeup queue.
*/
#define PPBPRI (PZERO+8)
/*
* Parallel Port Chipset mode masks.
* NIBBLE mode is supposed to be available under each other modes.
*/
#define PPB_COMPATIBLE 0x0 /* Centronics compatible mode */
#define PPB_NIBBLE 0x1 /* reverse 4 bit mode */
#define PPB_PS2 0x2 /* PS/2 byte mode */
#define PPB_EPP 0x4 /* EPP mode, 32 bit */
#define PPB_ECP 0x8 /* ECP mode */
/* mode aliases */
#define PPB_SPP PPB_NIBBLE|PPB_PS2
#define PPB_BYTE PPB_PS2
#define PPB_MASK 0x0f
#define PPB_OPTIONS_MASK 0xf0
#define PPB_IS_EPP(mode) (mode & PPB_EPP)
#define PPB_IN_EPP_MODE(dev) (PPB_IS_EPP (ppb_get_mode (dev)))
#define PPB_IN_NIBBLE_MODE(dev) (ppb_get_mode (dev) & PPB_NIBBLE)
#define PPB_IN_PS2_MODE(dev) (ppb_get_mode (dev) & PPB_PS2)
#define n(flags) (~(flags) & (flags))
/*
* Parallel Port Chipset control bits.
*/
#define STROBE 0x01
#define AUTOFEED 0x02
#define nINIT 0x04
#define SELECTIN 0x08
#define IRQENABLE 0x10
#define PCD 0x20
#define nSTROBE n(STROBE)
#define nAUTOFEED n(AUTOFEED)
#define INIT n(nINIT)
#define nSELECTIN n(SELECTIN)
#define nPCD n(PCD)
/*
* Parallel Port Chipset status bits.
*/
#define TIMEOUT 0x01
#define nFAULT 0x08
#define SELECT 0x10
#define PERROR 0x20
#define nACK 0x40
#define nBUSY 0x80
/*
* Structure to store status information.
*/
struct ppb_status {
unsigned char status;
unsigned int timeout:1;
unsigned int error:1;
unsigned int select:1;
unsigned int paper_end:1;
unsigned int ack:1;
unsigned int busy:1;
};
/*
* How tsleep() is called in ppb_request_bus().
*/
#define PPB_DONTWAIT 0
#define PPB_NOINTR 0
#define PPB_WAIT 0x1
#define PPB_INTR 0x2
#define PPB_POLL 0x4
#define PPB_FOREVER -1
/*
* Microsequence stuff.
*/
#define PPB_MS_MAXLEN 64 /* XXX according to MS_INS_MASK */
#define PPB_MS_MAXARGS 3 /* according to MS_ARG_MASK */
/* maximum number of mode dependent
* submicrosequences for in/out operations
*/
#define PPB_MAX_XFER 6
union ppb_insarg {
int i;
void *p;
int (* f)(void *, char *);
};
struct ppb_microseq {
int opcode; /* microins. opcode */
union ppb_insarg arg[PPB_MS_MAXARGS]; /* arguments */
};
/* microseqences used for GET/PUT operations */
struct ppb_xfer {
struct ppb_microseq *loop; /* the loop microsequence */
};
/*
* Parallel Port Bus Device structure.
*/
struct ppb_data; /* see below */
struct ppb_context {
int valid; /* 1 if the struct is valid */
int mode; /* XXX chipset operating mode */
struct microseq *curpc; /* pc in curmsq */
struct microseq *curmsq; /* currently executed microseqence */
};
struct ppb_device {
int id_unit; /* unit of the device */
char *name; /* name of the device */
ushort mode; /* current mode of the device */
ushort avm; /* available IEEE1284 modes of
* the device */
struct ppb_context ctx; /* context of the device */
/* mode dependent get msq. If NULL,
* IEEE1284 code is used */
struct ppb_xfer
get_xfer[PPB_MAX_XFER];
/* mode dependent put msq. If NULL,
* IEEE1284 code is used */
struct ppb_xfer
put_xfer[PPB_MAX_XFER];
void (*intr)(int); /* interrupt handler */
struct ppb_data *ppb; /* link to the ppbus */
LIST_ENTRY(ppb_device) chain; /* list of devices on the bus */
};
/*
* Parallel Port Bus Adapter structure.
*/
struct ppb_adapter {
void (*intr_handler)(int);
void (*reset_epp_timeout)(int);
void (*ecp_sync)(int);
int (*exec_microseq)(int, struct ppb_microseq **);
int (*setmode)(int, int);
int (*read)(int, char *, int, int);
int (*write)(int, char *, int, int);
void (*outsb_epp)(int, char *, int);
void (*outsw_epp)(int, char *, int);
void (*outsl_epp)(int, char *, int);
void (*insb_epp)(int, char *, int);
void (*insw_epp)(int, char *, int);
void (*insl_epp)(int, char *, int);
u_char (*r_dtr)(int);
u_char (*r_str)(int);
u_char (*r_ctr)(int);
u_char (*r_epp_A)(int);
u_char (*r_epp_D)(int);
u_char (*r_ecr)(int);
u_char (*r_fifo)(int);
void (*w_dtr)(int, char);
void (*w_str)(int, char);
void (*w_ctr)(int, char);
void (*w_epp_A)(int, char);
void (*w_epp_D)(int, char);
void (*w_ecr)(int, char);
void (*w_fifo)(int, char);
};
/*
* ppb_link structure.
*/
struct ppb_link {
int adapter_unit; /* unit of the adapter */
int base; /* base address of the port */
int id_irq; /* != 0 if irq enabled */
int accum; /* microseq accum */
char *ptr; /* current buffer pointer */
#define EPP_1_9 0x0 /* default */
#define EPP_1_7 0x1
int epp_protocol; /* EPP protocol: 0=1.9, 1=1.7 */
struct ppb_adapter *adapter; /* link to the ppc adapter */
struct ppb_data *ppbus; /* link to the ppbus */
};
/*
* Maximum size of the PnP info string
*/
#define PPB_PnP_STRING_SIZE 256 /* XXX */
/*
* Parallel Port Bus structure.
*/
struct ppb_data {
#define PPB_PnP_PRINTER 0
#define PPB_PnP_MODEM 1
#define PPB_PnP_NET 2
#define PPB_PnP_HDC 3
#define PPB_PnP_PCMCIA 4
#define PPB_PnP_MEDIA 5
#define PPB_PnP_FDC 6
#define PPB_PnP_PORTS 7
#define PPB_PnP_SCANNER 8
#define PPB_PnP_DIGICAM 9
#define PPB_PnP_UNKNOWN 10
int class_id; /* not a PnP device if class_id < 0 */
int state; /* current IEEE1284 state */
int error; /* last IEEE1284 error */
ushort mode; /* IEEE 1284-1994 mode
* NIBBLE, PS2, EPP or ECP */
struct ppb_link *ppb_link; /* link to the adapter */
struct ppb_device *ppb_owner; /* device which owns the bus */
LIST_HEAD(, ppb_device) ppb_devs; /* list of devices on the bus */
LIST_ENTRY(ppb_data) ppb_chain; /* list of busses */
};
/*
* Parallel Port Bus driver structure.
*/
struct ppb_driver
{
struct ppb_device *(*probe)(struct ppb_data *ppb);
int (*attach)(struct ppb_device *pdp);
char *name;
};
extern struct linker_set ppbdriver_set;
extern struct ppb_data *ppb_alloc_bus(void);
extern struct ppb_data *ppb_next_bus(struct ppb_data *);
extern struct ppb_data *ppb_lookup_bus(int);
extern struct ppb_data *ppb_lookup_link(int);
extern int ppb_attach_device(struct ppb_device *);
extern void ppb_remove_device(struct ppb_device *);
extern int ppb_attachdevs(struct ppb_data *);
extern int ppb_request_bus(struct ppb_device *, int);
extern int ppb_release_bus(struct ppb_device *);
extern void ppb_intr(struct ppb_link *);
extern int ppb_poll_device(struct ppb_device *, int, char, char, int);
extern int ppb_reset_epp_timeout(struct ppb_device *);
extern int ppb_ecp_sync(struct ppb_device *);
extern int ppb_get_status(struct ppb_device *, struct ppb_status *);
extern int ppb_set_mode(struct ppb_device *, int);
extern int ppb_write(struct ppb_device *, char *, int, int);
/*
* These are defined as macros for speedup.
*/
#define ppb_get_base_addr(dev) ((dev)->ppb->ppb_link->base)
#define ppb_get_epp_protocol(dev) ((dev)->ppb->ppb_link->epp_protocol)
#define ppb_get_irq(dev) ((dev)->ppb->ppb_link->id_irq)
#define ppb_get_mode(dev) ((dev)->mode)
/* This set of function access only to the EPP _data_ registers
* in 8, 16 and 32 bit modes */
#define ppb_outsb_epp(dev,buf,cnt) \
(*(dev)->ppb->ppb_link->adapter->outsb_epp) \
((dev)->ppb->ppb_link->adapter_unit, buf, cnt)
#define ppb_outsw_epp(dev,buf,cnt) \
(*(dev)->ppb->ppb_link->adapter->outsw_epp) \
((dev)->ppb->ppb_link->adapter_unit, buf, cnt)
#define ppb_outsl_epp(dev,buf,cnt) \
(*(dev)->ppb->ppb_link->adapter->outsl_epp) \
((dev)->ppb->ppb_link->adapter_unit, buf, cnt)
#define ppb_insb_epp(dev,buf,cnt) \
(*(dev)->ppb->ppb_link->adapter->insb_epp) \
((dev)->ppb->ppb_link->adapter_unit, buf, cnt)
#define ppb_insw_epp(dev,buf,cnt) \
(*(dev)->ppb->ppb_link->adapter->insw_epp) \
((dev)->ppb->ppb_link->adapter_unit, buf, cnt)
#define ppb_insl_epp(dev,buf,cnt) \
(*(dev)->ppb->ppb_link->adapter->insl_epp) \
((dev)->ppb->ppb_link->adapter_unit, buf, cnt)
#define ppb_repp_A(dev) (*(dev)->ppb->ppb_link->adapter->r_epp_A) \
((dev)->ppb->ppb_link->adapter_unit)
#define ppb_repp_D(dev) (*(dev)->ppb->ppb_link->adapter->r_epp_D) \
((dev)->ppb->ppb_link->adapter_unit)
#define ppb_recr(dev) (*(dev)->ppb->ppb_link->adapter->r_ecr) \
((dev)->ppb->ppb_link->adapter_unit)
#define ppb_rfifo(dev) (*(dev)->ppb->ppb_link->adapter->r_fifo) \
((dev)->ppb->ppb_link->adapter_unit)
#define ppb_wepp_A(dev,byte) (*(dev)->ppb->ppb_link->adapter->w_epp_A) \
((dev)->ppb->ppb_link->adapter_unit, byte)
#define ppb_wepp_D(dev,byte) (*(dev)->ppb->ppb_link->adapter->w_epp_D) \
((dev)->ppb->ppb_link->adapter_unit, byte)
#define ppb_wecr(dev,byte) (*(dev)->ppb->ppb_link->adapter->w_ecr) \
((dev)->ppb->ppb_link->adapter_unit, byte)
#define ppb_wfifo(dev,byte) (*(dev)->ppb->ppb_link->adapter->w_fifo) \
((dev)->ppb->ppb_link->adapter_unit, byte)
#define ppb_rdtr(dev) (*(dev)->ppb->ppb_link->adapter->r_dtr) \
((dev)->ppb->ppb_link->adapter_unit)
#define ppb_rstr(dev) (*(dev)->ppb->ppb_link->adapter->r_str) \
((dev)->ppb->ppb_link->adapter_unit)
#define ppb_rctr(dev) (*(dev)->ppb->ppb_link->adapter->r_ctr) \
((dev)->ppb->ppb_link->adapter_unit)
#define ppb_wdtr(dev,byte) (*(dev)->ppb->ppb_link->adapter->w_dtr) \
((dev)->ppb->ppb_link->adapter_unit, byte)
#define ppb_wstr(dev,byte) (*(dev)->ppb->ppb_link->adapter->w_str) \
((dev)->ppb->ppb_link->adapter_unit, byte)
#define ppb_wctr(dev,byte) (*(dev)->ppb->ppb_link->adapter->w_ctr) \
((dev)->ppb->ppb_link->adapter_unit, byte)
#endif
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