/* $NetBSD: ucb1200.c,v 1.21 2021/08/07 16:18:54 thorpej Exp $ */
/*-
* Copyright (c) 2000 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by UCHIYAMA Yasushi.
*
* 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.
*/
/*
* Device driver for PHILIPS UCB1200 Advanced modem/audio analog front-end
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: ucb1200.c,v 1.21 2021/08/07 16:18:54 thorpej Exp $");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/device.h>
#include <machine/bus.h>
#include <machine/intr.h>
#include <hpcmips/tx/tx39var.h>
#include <hpcmips/tx/tx39sibvar.h>
#include <hpcmips/tx/tx39sibreg.h>
#include <hpcmips/dev/ucb1200var.h>
#include <hpcmips/dev/ucb1200reg.h>
#ifdef UCB1200_DEBUG
#define DPRINTF_ENABLE
#define DPRINTF_DEBUG ucb1200_debug
#endif
#include <machine/debug.h>
struct ucbchild_state {
int (*cs_busy)(void *);
void *cs_arg;
};
struct ucb1200_softc {
device_t sc_parent; /* parent (TX39 SIB module) */
tx_chipset_tag_t sc_tc;
int sc_snd_rate; /* passed down from SIB module */
int sc_tel_rate;
/* inquire child module state */
struct ucbchild_state sc_child[UCB1200_MODULE_MAX];
};
int ucb1200_match(device_t, cfdata_t, void *);
void ucb1200_attach(device_t, device_t, void *);
int ucb1200_print(void *, const char *);
int ucb1200_search(device_t, cfdata_t, const int *, void *);
int ucb1200_check_id(u_int16_t, int);
#ifdef UCB1200_DEBUG
void ucb1200_dump(struct ucb1200_softc *);
#endif
CFATTACH_DECL_NEW(ucb, sizeof(struct ucb1200_softc),
ucb1200_match, ucb1200_attach, NULL, NULL);
const struct ucb_id {
u_int16_t id;
const char *product;
} ucb_id[] = {
{ UCB1100_ID, "PHILIPS UCB1100" },
{ UCB1200_ID, "PHILIPS UCB1200" },
{ UCB1300_ID, "PHILIPS UCB1300" },
{ TC35413F_ID, "TOSHIBA TC35413F" },
{ 0, 0 }
};
int
ucb1200_match(device_t parent, cfdata_t cf, void *aux)
{
struct txsib_attach_args *sa = aux;
u_int16_t reg;
if (sa->sa_slot != 0) /* UCB1200 must be subframe 0 */
return (0);
reg = txsibsf0_reg_read(sa->sa_tc, UCB1200_ID_REG);
return (ucb1200_check_id(reg, 0));
}
void
ucb1200_attach(device_t parent, device_t self, void *aux)
{
struct txsib_attach_args *sa = aux;
struct ucb1200_softc *sc = device_private(self);
u_int16_t reg;
printf(": ");
sc->sc_tc = sa->sa_tc;
sc->sc_parent = parent;
sc->sc_snd_rate = sa->sa_snd_rate;
sc->sc_tel_rate = sa->sa_tel_rate;
tx39sib_enable1(sc->sc_parent);
tx39sib_enable2(sc->sc_parent);
#ifdef UCB1200_DEBUG
if (ucb1200_debug)
ucb1200_dump(sc);
#endif
reg = txsibsf0_reg_read(sa->sa_tc, UCB1200_ID_REG);
(void)ucb1200_check_id(reg, 1);
printf("\n");
config_search(self, NULL,
CFARGS(.search = ucb1200_search));
}
int
ucb1200_search(device_t parent, cfdata_t cf, const int *ldesc, void *aux)
{
struct ucb1200_softc *sc = device_private(parent);
struct ucb1200_attach_args ucba;
ucba.ucba_tc = sc->sc_tc;
ucba.ucba_snd_rate = sc->sc_snd_rate;
ucba.ucba_tel_rate = sc->sc_tel_rate;
ucba.ucba_sib = sc->sc_parent;
ucba.ucba_ucb = parent;
if (config_probe(parent, cf, &ucba))
config_attach(parent, cf, &ucba, ucb1200_print, CFARGS_NONE);
return (0);
}
int
ucb1200_print(void *aux, const char *pnp)
{
return (pnp ? QUIET : UNCONF);
}
int
ucb1200_check_id(u_int16_t idreg, int print)
{
int i;
for (i = 0; ucb_id[i].product; i++) {
if (ucb_id[i].id == idreg) {
if (print) {
printf("%s", ucb_id[i].product);
}
return (1);
}
}
return (0);
}
void
ucb1200_state_install(device_t dev, int (*sfun)(void *), void *sarg,
int sid)
{
struct ucb1200_softc *sc = device_private(dev);
sc->sc_child[sid].cs_busy = sfun;
sc->sc_child[sid].cs_arg = sarg;
}
int
ucb1200_state_idle(device_t dev)
{
struct ucb1200_softc *sc = device_private(dev);
struct ucbchild_state *cs;
int i;
cs = sc->sc_child;
for (i = 0; i < UCB1200_MODULE_MAX; i++, cs++)
if (cs->cs_busy)
if ((*cs->cs_busy)(cs->cs_arg))
return (0);
return (1); /* idle state */
}
#ifdef UCB1200_DEBUG
void
ucb1200_dump(struct ucb1200_softc *sc)
{
static const char *const regname[] = {
"IO_DATA ",
"IO_DIR ",
"POSINTEN ",
"NEGINTEN ",
"INTSTAT ",
"TELECOMCTRLA ",
"TELECOMCTRLB ",
"AUDIOCTRLA ",
"AUDIOCTRLB ",
"TOUCHSCREENCTRL",
"ADCCTRL ",
"ADCDATA ",
"ID ",
"MODE ",
"RESERVED ",
"NULL "
};
tx_chipset_tag_t tc;
u_int16_t reg;
int i;
tc = sc->sc_tc;
printf("\n\t[UCB1200 register]\n");
for (i = 0; i < 16; i++) {
reg = txsibsf0_reg_read(tc, i);
printf("%s(%02d) 0x%04x ", regname[i], i, reg);
dbg_bit_print(reg);
}
}
#endif /* UCB1200_DEBUG */