153 lines
4.6 KiB
C
153 lines
4.6 KiB
C
/* $Id: hd64570var.h,v 1.1 1998/07/26 03:26:57 explorer Exp $ */
|
|
|
|
/*
|
|
* Copyright (c) 1998 Vixie Enterprises
|
|
* 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. Neither the name of Vixie Enterprises nor the names
|
|
* of its contributors may be used to endorse or promote products derived
|
|
* from this software without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY VIXIE ENTERPRISES 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 VIXIE ENTERPRISES 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.
|
|
*
|
|
* This software has been written for Vixie Enterprises by Michael Graff
|
|
* <explorer@flame.org>. To learn more about Vixie Enterprises, see
|
|
* ``http://www.vix.com''.
|
|
*/
|
|
|
|
#ifndef _HD64570VAR_H_
|
|
#define _HD64570VAR_H_
|
|
|
|
#include "bpfilter.h"
|
|
|
|
#define SCA_USE_FASTQ /* use a split queue, one for fast traffic */
|
|
|
|
struct sca_softc;
|
|
typedef struct sca_port sca_port_t;
|
|
typedef struct sca_desc sca_desc_t;
|
|
|
|
/*
|
|
* device DMA descriptor
|
|
*/
|
|
struct sca_desc {
|
|
u_int16_t cp; /* chain pointer */
|
|
u_int16_t bp; /* buffer pointer (low bits) */
|
|
u_int8_t bpb; /* buffer pointer (high bits) */
|
|
u_int8_t unused0;
|
|
u_int16_t len; /* total length */
|
|
u_int8_t stat; /* status */
|
|
u_int8_t unused1;
|
|
};
|
|
#define SCA_DESC_EOT 0x01
|
|
#define SCA_DESC_CRC 0x04
|
|
#define SCA_DESC_OVRN 0x08
|
|
#define SCA_DESC_RESD 0x10
|
|
#define SCA_DESC_ABORT 0x20
|
|
#define SCA_DESC_SHRTFRM 0x40
|
|
#define SCA_DESC_EOM 0x80
|
|
#define SCA_DESC_ERRORS 0x7C
|
|
|
|
/*
|
|
* softc structure for each port
|
|
*/
|
|
struct sca_port {
|
|
u_int msci_off; /* offset for msci address for this port */
|
|
u_int dmac_off; /* offset of dmac address for this port */
|
|
|
|
u_int sp_port;
|
|
|
|
/*
|
|
* CISCO keepalive stuff
|
|
*/
|
|
u_int32_t cka_lasttx;
|
|
u_int32_t cka_lastrx;
|
|
|
|
/*
|
|
* start of each important bit of information for transmit and
|
|
* receive buffers.
|
|
*/
|
|
u_int32_t txdesc_p;
|
|
sca_desc_t *txdesc;
|
|
u_int32_t txbuf_p;
|
|
u_int8_t *txbuf;
|
|
volatile u_int txcur; /* last descriptor in chain */
|
|
volatile u_int txinuse; /* descriptors in use */
|
|
volatile u_int txstart; /* start descriptor */
|
|
|
|
u_int32_t rxdesc_p;
|
|
sca_desc_t *rxdesc;
|
|
u_int32_t rxbuf_p;
|
|
u_int8_t *rxbuf;
|
|
u_int rxstart; /* index of first descriptor */
|
|
u_int rxend; /* index of last descriptor */
|
|
|
|
struct ifnet sp_if; /* the network information */
|
|
struct ifqueue linkq; /* link-level packets are high prio */
|
|
#ifdef SCA_USE_FASTQ
|
|
struct ifqueue fastq; /* interactive packets */
|
|
#endif
|
|
|
|
#if NBPFILTER > 0
|
|
caddr_t sp_bpf; /* hook for BPF */
|
|
#endif
|
|
|
|
struct sca_softc *sca; /* pointer to parent */
|
|
};
|
|
|
|
/*
|
|
* softc structure for the chip itself
|
|
*/
|
|
struct sca_softc {
|
|
struct device *parent; /* our parent device, or NULL */
|
|
int sc_numports; /* number of ports present */
|
|
|
|
/*
|
|
* a callback into the parent, since the SCA chip has no control
|
|
* over DTR, we have to make a callback into the parent, which
|
|
* might know about DTR.
|
|
*
|
|
* If the function pointer is NULL, no callback is specified.
|
|
*/
|
|
void (*dtr_callback) __P((void *aux, int port, int state));
|
|
void *dtr_aux;
|
|
|
|
sca_port_t sc_ports[2];
|
|
bus_space_handle_t sc_ioh;
|
|
bus_space_tag_t sc_iot;
|
|
|
|
bus_dma_tag_t sc_dmat; /* bus dma tag */
|
|
bus_dmamap_t sc_dmam; /* bus dma map */
|
|
bus_dma_segment_t sc_seg; /* bus dma segment allocated */
|
|
caddr_t sc_dma_addr; /* kva address of segment */
|
|
u_long sc_allocsize; /* size of region */
|
|
};
|
|
|
|
|
|
int sca_init(struct sca_softc *, u_int);
|
|
void sca_port_attach(struct sca_softc *, u_int);
|
|
int sca_hardintr(struct sca_softc *);
|
|
void sca_shutdown(struct sca_softc *);
|
|
|
|
#endif /* _HD64570VAR_H_ */
|