/* $NetBSD: if_sn_ap.c,v 1.13 2018/10/14 00:10:11 tsutsui Exp $ */

/* $NetBSD: if_sn_ap.c,v 1.13 2018/10/14 00:10:11 tsutsui Exp $ */

/*
* Copyright (C) 1997 Allen Briggs
* 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 Allen Briggs
* 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.
*/

#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: if_sn_ap.c,v 1.13 2018/10/14 00:10:11 tsutsui Exp $");

#include "opt_inet.h"

#include <sys/param.h>
#include <sys/device.h>
#include <sys/errno.h>
#include <sys/ioctl.h>
#include <sys/socket.h>
#include <sys/syslog.h>
#include <sys/systm.h>

#include <net/if.h>
#include <net/if_ether.h>

#include <machine/cpu.h>
#include <machine/adrsmap.h>

#include <newsmips/apbus/apbusvar.h>
#include <newsmips/apbus/if_snreg.h>
#include <newsmips/apbus/if_snvar.h>

#include <newsmips/newsmips/machid.h>

#define SONIC_MACROM_OFFSET 0x40

#define SONIC_APBUS_REG_OFFSET 0x00010000
#define SONIC_APBUS_MEM_OFFSET 0x00020000
#define SONIC_APBUS_CTL_OFFSET (-0x00100000)

static int sn_ap_match(device_t, cfdata_t, void *);
static void sn_ap_attach(device_t, device_t, void *);
static int sn_ap_getaddr(struct sn_softc *, uint8_t *);

CFATTACH_DECL_NEW(sn_ap, sizeof(struct sn_softc),
sn_ap_match, sn_ap_attach, NULL, NULL);

static int
sn_ap_match(device_t parent, cfdata_t cf, void *aux)
{
struct apbus_attach_args *apa = aux;

if (strcmp(apa->apa_name, "sonic") != 0)
return 0;

return 1;
}

/*
* Install interface into kernel networking data structures
*/
static void
sn_ap_attach(device_t parent, device_t self, void *aux)
{
struct sn_softc *sc = device_private(self);
struct apbus_attach_args *apa = aux;
uint8_t myaddr[ETHER_ADDR_LEN];
uint32_t intrmask = 0;

sc->sc_dev = self;
sc->slotno = apa->apa_slotno;
if (systype == NEWS4000 && sc->slotno == 0) {
sc->sc_flags |= F_NWS40S0;
}
if ((sc->sc_flags & F_NWS40S0) != 0) {
sc->sc_hwbase = (void *)apa->apa_hwbase;
sc->sc_regbase = (void *)apa->apa_hwbase;
sc->memory = (void *)NEWS4000_SONIC_MEMORY;
sc->buffer = (void *)NEWS4000_SONIC_BUFFER;
} else {
sc->sc_hwbase = (void *)apa->apa_hwbase;
sc->sc_regbase =
(void *)(apa->apa_hwbase + SONIC_APBUS_REG_OFFSET);
sc->memory =
(void *)(apa->apa_hwbase + SONIC_APBUS_MEM_OFFSET);
}

aprint_normal(" slot%d addr 0x%lx", apa->apa_slotno, apa->apa_hwbase);

if ((sc->sc_flags & F_NWS40S0) != 0) {
sc->snr_dcr = DCR_STERM | DCR_TFT28;
sc->snr_dcr2 = 0x0100;
} else {
sc->snr_dcr = DCR_WAIT0 | DCR_DMABLOCK | DCR_RFT16 | DCR_TFT16;
sc->snr_dcr2 = 0;
sc->snr_dcr |= DCR_EXBUS;
}
sc->bitmode = 1;

if (sn_ap_getaddr(sc, myaddr)) {
aprint_error(": failed to get MAC address\n");
return;
}

aprint_normal("\n");

/* snsetup returns 1 if something fails */
if (snsetup(sc, myaddr))
return;

if (systype == NEWS5000) {
intrmask = (apa->apa_slotno == 0) ?
NEWS5000_INT0_SONIC : NEWS5000_SLOTTOMASK(apa->apa_slotno);
}
if (systype == NEWS4000) {
intrmask = (apa->apa_slotno == 0) ?
NEWS4000_INT0_SONIC : NEWS4000_SLOTTOMASK(apa->apa_slotno);
}

apbus_intr_establish(0, /* interrupt level (0 or 1) */
intrmask,
0, /* priority */
snintr, sc, device_xname(self), apa->apa_ctlnum);
}

int
sn_ap_getaddr(struct sn_softc *sc, uint8_t *lladdr)
{

if ((sc->sc_flags & F_NWS40S0) != 0) {
extern struct idrom idrom;
memcpy(lladdr, idrom.id_macadrs, sizeof(idrom.id_macadrs));
} else {
uint32_t *p;
int i;

p = (uint32_t *)((uint8_t *)sc->sc_hwbase +
SONIC_MACROM_OFFSET);
for (i = 0; i < ETHER_ADDR_LEN; i++) {
int h = *p++ & 0x0f;
int l = *p++ & 0x0f;
*lladdr++ = (h << 4) + l;
}
}

return 0;
}

#define APSONIC_INT_MASK 0x00007f00 /* XXX */
#define APSONIC_INT_REG(base) (((u_long)(base) & 0xffc00000) | 0x00100000)

void
sn_md_init(struct sn_softc *sc)
{

if ((sc->sc_flags & F_NWS40S0) != 0) {
*(volatile uint32_t *)0xbf700000 = 1;
} else {
volatile uint32_t *reg =
(uint32_t *)APSONIC_INT_REG(sc->sc_hwbase);

*reg = APSONIC_INT_MASK;
}
wbflush();
apbus_wbflush();
delay(10000);
}