/* $NetBSD: com_arbus.c,v 1.13 2018/12/08 17:46:12 thorpej Exp $ */
/*-
* Copyright (c) 2006 Urbana-Champaign Independent Media Center.
* Copyright (c) 2006 Garrett D'Amore.
* All rights reserved.
*
* Portions of this code were written by Garrett D'Amore for the
* Champaign-Urbana Community Wireless Network Project.
*
* 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 acknowledgements:
* This product includes software developed by the Urbana-Champaign
* Independent Media Center.
* This product includes software developed by Garrett D'Amore.
* 4. Urbana-Champaign Independent Media Center's name and Garrett
* D'Amore's name may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE URBANA-CHAMPAIGN INDEPENDENT
* MEDIA CENTER AND GARRETT D'AMORE ``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 URBANA-CHAMPAIGN INDEPENDENT
* MEDIA CENTER OR GARRETT D'AMORE 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.
*/
/*-
* Copyright (c) 1998 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Charles M. Hannum.
*
* 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
*/
/*-
* Copyright (c) 1991 The Regents of the University of California.
* 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 the University 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 THE REGENTS 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 REGENTS 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.
*
* @(#)com.c 7.5 (Berkeley) 5/16/91
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: com_arbus.c,v 1.13 2018/12/08 17:46:12 thorpej Exp $");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/device.h>
#include <sys/kernel.h>
#include <sys/termios.h>
#include <sys/ttydefaults.h>
#include <sys/types.h>
#include <sys/bus.h>
#include <dev/cons.h>
#include <dev/ic/comreg.h>
#include <dev/ic/comvar.h>
#include <mips/cpuregs.h>
#include <mips/atheros/include/arbusvar.h>
#include "opt_com.h"
struct com_arbus_softc {
struct com_softc sc_com;
};
static void com_arbus_init_regs(struct com_regs *, bus_space_tag_t,
bus_space_handle_t, bus_addr_t, bus_size_t);
//static bus_space_tag_t com_arbus_get_bus_space_tag(void);
static int com_arbus_match(device_t, cfdata_t , void *);
static void com_arbus_attach(device_t, device_t, void *);
CFATTACH_DECL_NEW(com_arbus, sizeof(struct com_arbus_softc),
com_arbus_match, com_arbus_attach, NULL, NULL);
#if 0
#ifdef TTYDEF_SPEED
#define COM_ARBUS_BAUD TTYDEF_SPEED
#else
#define COM_ARBUS_BAUD 115200
#endif
#endif
#ifndef COM_ARBUS_BAUD
#define COM_ARBUS_BAUD 115200
#endif
int com_arbus_baud = COM_ARBUS_BAUD;
#define CONMODE ((TTYDEF_CFLAG & ~(CSIZE | CSTOPB | PARENB)) | CS8) /* 8N1 */
#ifndef COM_REGMAP
#error COM_REGMAP not defined!
#endif
int
com_arbus_match(device_t parent, cfdata_t cf, void *aux)
{
struct arbus_attach_args *aa = aux;
bus_space_handle_t bsh;
struct com_regs regs;
int rv;
if (strcmp(aa->aa_name, cf->cf_name) != 0)
return 0;
if (com_is_console(aa->aa_bst, aa->aa_addr, ®s.cr_ioh))
return 1;
if (bus_space_map(aa->aa_bst, aa->aa_addr, aa->aa_size,
0, &bsh))
return 0;
com_arbus_init_regs(®s, aa->aa_bst, bsh, aa->aa_addr, aa->aa_size);
rv = com_probe_subr(®s);
bus_space_unmap(aa->aa_bst, bsh, aa->aa_size);
return rv;
}
void
com_arbus_attach(device_t parent, device_t self, void *aux)
{
struct com_arbus_softc *arsc = device_private(self);
struct com_softc *sc = &arsc->sc_com;
struct arbus_attach_args *aa = aux;
prop_number_t prop;
bus_space_handle_t ioh;
sc->sc_dev = self;
prop = prop_dictionary_get(device_properties(sc->sc_dev),
"frequency");
if (prop == NULL) {
aprint_error(": unable to get frequency property\n");
return;
}
KASSERT(prop_object_type(prop) == PROP_TYPE_NUMBER);
sc->sc_frequency = (int)prop_number_integer_value(prop);
if (!com_is_console(aa->aa_bst, aa->aa_addr, &ioh)
&& bus_space_map(aa->aa_bst, aa->aa_addr, aa->aa_size, 0,
&ioh) != 0) {
aprint_error(": can't map registers\n");
return;
}
com_arbus_init_regs(&sc->sc_regs, aa->aa_bst, ioh, aa->aa_addr,
aa->aa_size);
com_attach_subr(sc);
arbus_intr_establish(aa->aa_cirq, aa->aa_mirq, comintr, sc);
}
static void
com_arbus_init_regs(struct com_regs *regsp, bus_space_tag_t st,
bus_space_handle_t sh, bus_addr_t addr, bus_size_t size)
{
#if _BYTE_ORDER == _BIG_ENDIAN
int off = 3;
#else
int off = 0;
#endif
com_init_regs(regsp, st, sh, addr);
/* rewrite the map to shift for alignment */
for (size_t i = 0; i < __arraycount(regsp->cr_map); i++) {
regsp->cr_map[i] = (regsp->cr_map[i] * 4) + off;
}
regsp->cr_nports = size;
}
void
com_arbus_cnattach(bus_addr_t addr, uint32_t freq)
{
bus_space_tag_t bst;
bus_space_handle_t bsh;
struct com_regs regs;
bst = arbus_get_bus_space_tag();
if (bus_space_map(bst, addr, 0x1000, 0, &bsh))
return;
com_arbus_init_regs(®s, bst, bsh, addr, 0x1000);
comcnattach1(®s, com_arbus_baud, freq, COM_TYPE_NORMAL, CONMODE);
}