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/* $NetBSD: if_admswvar.h,v 1.1 2007/03/20 08:52:02 dyoung Exp $ */
/*-
* Copyright (c) 2007 Ruslan Ermilov and Vsevolod Lobko.
* 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. The names of the authors may not be used to endorse or promote
* products derived from this software without specific prior
* written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``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 AUTHORS
* 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.
*/
#ifndef _IF_ADMSWVAR_H_
#define _IF_ADMSWVAR_H_
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/bus.h>
#include <sys/kernel.h>
#include <sys/mbuf.h>
#include <sys/malloc.h>
#include <sys/module.h>
#include <sys/rman.h>
#include <sys/socket.h>
#include <sys/sockio.h>
#include <sys/sysctl.h>
#include <machine/bus.h>
#include <net/ethernet.h>
#include <net/if.h>
#include <net/if_arp.h>
#include <net/if_dl.h>
#include <net/if_media.h>
#include <net/if_mib.h>
#include <net/if_types.h>
#ifdef INET
#include <netinet/in.h>
#include <netinet/in_systm.h>
#include <netinet/in_var.h>
#include <netinet/ip.h>
#endif
#include <net/bpf.h>
#include <net/bpfdesc.h>
#include <dev/mii/mii.h>
#include <dev/mii/miivar.h>
#include <mips/adm5120/adm5120reg.h>
#include <mips/adm5120/if_admswreg.h>
#define MAC_BUFLEN 0x07ff
#define ADMSW_NTXHDESC 4
#define ADMSW_NRXHDESC 32
#define ADMSW_NTXLDESC 32
#define ADMSW_NRXLDESC 32
#define ADMSW_NTXHDESC_MASK (ADMSW_NTXHDESC - 1)
#define ADMSW_NRXHDESC_MASK (ADMSW_NRXHDESC - 1)
#define ADMSW_NTXLDESC_MASK (ADMSW_NTXLDESC - 1)
#define ADMSW_NRXLDESC_MASK (ADMSW_NRXLDESC - 1)
#define ADMSW_NEXTTXH(x) (((x) + 1) & ADMSW_NTXHDESC_MASK)
#define ADMSW_NEXTRXH(x) (((x) + 1) & ADMSW_NRXHDESC_MASK)
#define ADMSW_NEXTTXL(x) (((x) + 1) & ADMSW_NTXLDESC_MASK)
#define ADMSW_NEXTRXL(x) (((x) + 1) & ADMSW_NRXLDESC_MASK)
#define ADMSW_IRQ 9
struct admsw_control_data {
/* The transmit descriptors. */
struct admsw_desc acd_txhdescs[ADMSW_NTXHDESC];
/* The receive descriptors. */
struct admsw_desc acd_rxhdescs[ADMSW_NRXHDESC];
/* The transmit descriptors. */
struct admsw_desc acd_txldescs[ADMSW_NTXLDESC];
/* The receive descriptors. */
struct admsw_desc acd_rxldescs[ADMSW_NRXLDESC];
};
#define ADMSW_CDOFF(x) offsetof(struct admsw_control_data, x)
#define ADMSW_CDTXHOFF(x) ADMSW_CDOFF(acd_txhdescs[(x)])
#define ADMSW_CDTXLOFF(x) ADMSW_CDOFF(acd_txldescs[(x)])
#define ADMSW_CDRXHOFF(x) ADMSW_CDOFF(acd_rxhdescs[(x)])
#define ADMSW_CDRXLOFF(x) ADMSW_CDOFF(acd_rxldescs[(x)])
struct admsw_descsoft {
struct mbuf *ds_mbuf;
bus_dmamap_t ds_dmamap;
/* Up to 2 segments */
uint32_t ds_addr[2];
uint32_t ds_len[2];
uint32_t ds_nsegs;
};
/*
* Software state per device.
*/
struct admsw_softc {
device_t sc_dev; /* generic device information */
uint8_t sc_enaddr[ETHER_ADDR_LEN];
bus_dma_tag_t sc_control_dmat;
/* bus DMA tag for control structs*/
bus_dma_tag_t sc_bufs_dmat; /* bus DMA tag for buffers */
struct ifmedia sc_ifmedia[SW_DEVS];
int ndevs; /* number of IFF_RUNNING interfaces */
struct ifnet *sc_ifnet[SW_DEVS];
struct callout sc_watchdog;
int sc_timer;
/* Ethernet common data */
void *sc_ih; /* interrupt cookie */
struct resource *irq_res;
struct resource *mem_res;
bus_dmamap_t sc_cddmamap; /* control data DMA map */
uint32_t sc_cddma;
struct admsw_control_data *sc_control_data;
struct admsw_descsoft sc_txhsoft[ADMSW_NTXHDESC];
struct admsw_descsoft sc_rxhsoft[ADMSW_NRXHDESC];
struct admsw_descsoft sc_txlsoft[ADMSW_NTXLDESC];
struct admsw_descsoft sc_rxlsoft[ADMSW_NRXLDESC];
#define sc_txhdescs sc_control_data->acd_txhdescs
#define sc_rxhdescs sc_control_data->acd_rxhdescs
#define sc_txldescs sc_control_data->acd_txldescs
#define sc_rxldescs sc_control_data->acd_rxldescs
int sc_txfree; /* number of free Tx descriptors */
int sc_txnext; /* next Tx descriptor to use */
int sc_txdirty; /* first dirty Tx descriptor */
int sc_rxptr; /* next ready Rx descriptor */
};
#define ADMSW_CDTXHADDR(sc, x) ((sc)->sc_cddma + ADMSW_CDTXHOFF((x)))
#define ADMSW_CDTXLADDR(sc, x) ((sc)->sc_cddma + ADMSW_CDTXLOFF((x)))
#define ADMSW_CDRXHADDR(sc, x) ((sc)->sc_cddma + ADMSW_CDRXHOFF((x)))
#define ADMSW_CDRXLADDR(sc, x) ((sc)->sc_cddma + ADMSW_CDRXLOFF((x)))
#define ADMSW_CDTXHSYNC(sc, x, ops) \
bus_dmamap_sync((sc)->sc_control_dmat, (sc)->sc_cddmamap, (ops))
#define ADMSW_CDTXLSYNC(sc, x, ops) \
bus_dmamap_sync((sc)->sc_control_dmat, (sc)->sc_cddmamap, (ops))
#define ADMSW_CDRXHSYNC(sc, x, ops) \
bus_dmamap_sync((sc)->sc_control_dmat, (sc)->sc_cddmamap, (ops))
#define ADMSW_CDRXLSYNC(sc, x, ops) \
bus_dmamap_sync((sc)->sc_control_dmat, (sc)->sc_cddmamap, (ops))
#define ADMSW_INIT_RXHDESC(sc, x) \
do { \
struct admsw_descsoft *__ds = &(sc)->sc_rxhsoft[(x)]; \
struct admsw_desc *__desc = &(sc)->sc_rxhdescs[(x)]; \
struct mbuf *__m = __ds->ds_mbuf; \
\
__m->m_data = __m->m_ext.ext_buf + 2; \
__desc->data = __ds->ds_addr[0] + 2; \
__desc->cntl = 0; \
__desc->len = min(MCLBYTES - 2, MAC_BUFLEN - 2); \
__desc->status = 0; \
if ((x) == ADMSW_NRXHDESC - 1) \
__desc->data |= ADM5120_DMA_RINGEND; \
__desc->data |= ADM5120_DMA_OWN; \
ADMSW_CDRXHSYNC((sc), (x), BUS_DMASYNC_PREREAD|BUS_DMASYNC_PREWRITE); \
} while (0)
#define ADMSW_INIT_RXLDESC(sc, x) \
do { \
struct admsw_descsoft *__ds = &(sc)->sc_rxlsoft[(x)]; \
struct admsw_desc *__desc = &(sc)->sc_rxldescs[(x)]; \
struct mbuf *__m = __ds->ds_mbuf; \
\
__m->m_data = __m->m_ext.ext_buf + 2; \
__desc->data = __ds->ds_addr[0] + 2; \
__desc->cntl = 0; \
__desc->len = min(MCLBYTES - 2, MAC_BUFLEN - 2); \
__desc->status = 0; \
if ((x) == ADMSW_NRXLDESC - 1) \
__desc->data |= ADM5120_DMA_RINGEND; \
__desc->data |= ADM5120_DMA_OWN; \
ADMSW_CDRXLSYNC((sc), (x), BUS_DMASYNC_PREREAD|BUS_DMASYNC_PREWRITE); \
} while (0)
void admwdog_attach(struct admsw_softc *);
#endif /* _IF_ADMSWVAR_H_ */
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