428 lines
11 KiB
C
428 lines
11 KiB
C
/* $NetBSD: tx39sib.c,v 1.8 2001/06/14 11:09:56 uch Exp $ */
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/*-
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* Copyright (c) 2000 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by UCHIYAMA Yasushi.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* TX39 SIB (Serial Interface Bus) module.
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*/
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#undef TX39SIBDEBUG
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#include "opt_tx39_debug.h"
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/device.h>
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#include <machine/bus.h>
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#include <machine/intr.h>
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#include <hpcmips/tx/tx39var.h>
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#include <hpcmips/tx/tx39icureg.h>
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#include <hpcmips/tx/tx39sibvar.h>
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#include <hpcmips/tx/tx39sibreg.h>
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#include "locators.h"
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#ifdef TX39SIBDEBUG
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int tx39sibdebug = 0;
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#define DPRINTF(arg) if (tx39sibdebug) printf arg;
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#else
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#define DPRINTF(arg)
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#endif
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int tx39sib_match(struct device *, struct cfdata *, void *);
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void tx39sib_attach(struct device *, struct device *, void *);
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int tx39sib_print(void *, const char *);
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int tx39sib_search(struct device *, struct cfdata *, void *);
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#define TX39_CLK2X 18432000
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const int sibsclk_divide_table[8] = {
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2, 3, 4, 5, 6, 8, 10, 12
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};
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struct tx39sib_param {
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/* SIB clock rate */
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int sp_clock;
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/*
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* SIBMCLK = 18.432MHz = (CLK2X /4)
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* SIBSCLK = SIBMCLK / sp_clock
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* sp_clock start end divide module
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* 0 7 8 2
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* 1 6 8 3
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* 2 6 9 4
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* 3 5 9 5
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* 4 5 10 6
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* 5 4 11 8
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* 6 3 12 10
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* 7 2 13 12
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*/
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/* sampling rate */
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int sp_snd_rate; /* SNDFSDIV + 1 */
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int sp_tel_rate; /* TELFSDIV + 1 */
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/*
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* Fs = (SIBSCLK * 2) / ((FSDIV + 1) * 64)
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* FSDIV + 1 sampling rate
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* 15 19.2k (1.6% error vs. CD-XA)
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* 13 22.154k (0.47% error vs. CD-Audio)
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* 22 7.85k (1.8% error vs. 8k)
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*/
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/* data format 16/8bit */
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int sp_sf0sndmode;
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int sp_sf0telmode;
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};
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struct tx39sib_param tx39sib_param_default_3912 = {
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0, /* SIBSCLK = 9.216MHz (div2) */
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#if 0 /* setting sample */
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40, /* audio: 7.2kHz */
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26, /* audio: CD-Audio(/4) 11.077kHz*/
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6, /* audio: 48kHz */
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#endif
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13, /* audio: CD-Audio(/2 = 22.050) 22.154kHz*/
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40, /* telecom: 7.2kHz */
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TX39_SIBCTRL_SND16, /* Audio 16bit mono */
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TX39_SIBCTRL_TEL16 /* Telecom 16bit mono */
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};
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struct tx39sib_param tx39sib_param_default_3922 = {
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7, /* SIBSCLK = 9.216MHz (div1) */
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13, /* audio: CD-Audio(/2 = 22.050) 22.154kHz*/
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40, /* telecom: 7.2kHz */
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TX39_SIBCTRL_SND16, /* Audio 16bit mono */
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TX39_SIBCTRL_TEL16 /* Telecom 16bit mono */
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};
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struct tx39sib_softc {
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struct device sc_dev;
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tx_chipset_tag_t sc_tc;
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struct tx39sib_param sc_param;
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int sc_attached;
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};
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__inline int __txsibsf0_ready(tx_chipset_tag_t);
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#ifdef TX39SIBDEBUG
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void tx39sib_dump(struct tx39sib_softc *);
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#endif
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struct cfattach tx39sib_ca = {
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sizeof(struct tx39sib_softc), tx39sib_match, tx39sib_attach
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};
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int
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tx39sib_match(struct device *parent, struct cfdata *cf, void *aux)
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{
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return (ATTACH_FIRST);
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}
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void
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tx39sib_attach(struct device *parent, struct device *self, void *aux)
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{
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struct txsim_attach_args *ta = aux;
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struct tx39sib_softc *sc = (void*)self;
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tx_chipset_tag_t tc;
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sc->sc_tc = tc = ta->ta_tc;
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/* set default param */
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#ifdef TX391X
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sc->sc_param = tx39sib_param_default_3912;
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#endif /* TX391X */
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#ifdef TX392X
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sc->sc_param = tx39sib_param_default_3922;
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#endif /* TX392X */
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#define MHZ(a) ((a) / 1000000), (((a) % 1000000) / 1000)
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printf(": %d.%03d MHz", MHZ(tx39sib_clock(self)));
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printf("\n");
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#ifdef TX39SIBDEBUG
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if (tx39sibdebug)
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tx39sib_dump(sc);
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#endif
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/* enable subframe0 */
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tx39sib_enable1(self);
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/* enable SIB */
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tx39sib_enable2(self);
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#ifdef TX39SIBDEBUG
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if (tx39sibdebug)
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tx39sib_dump(sc);
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#endif
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config_search(tx39sib_search, self, tx39sib_print);
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}
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void
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tx39sib_enable1(struct device *dev)
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{
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struct tx39sib_softc *sc = (void*)dev;
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struct tx39sib_param *param = &sc->sc_param;
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tx_chipset_tag_t tc = sc->sc_tc;
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txreg_t reg;
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/* disable SIB */
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tx39sib_disable(dev);
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/* setup */
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reg = 0;
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/* SIB clock rate */
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reg = TX39_SIBCTRL_SCLKDIV_SET(reg, param->sp_clock);
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/* sampling rate (sound) */
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reg = TX39_SIBCTRL_SNDFSDIV_SET(reg, param->sp_snd_rate - 1);
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/* sampling rate (telecom) */
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reg = TX39_SIBCTRL_TELFSDIV_SET(reg, param->sp_tel_rate - 1);
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/* data format (8/16bit) */
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reg |= param->sp_sf0sndmode;
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reg |= param->sp_sf0telmode;
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tx_conf_write(tc, TX39_SIBCTRL_REG, reg);
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/* DMA */
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reg = tx_conf_read(tc, TX39_SIBDMACTRL_REG);
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reg &= ~(TX39_SIBDMACTRL_ENDMARXSND |
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TX39_SIBDMACTRL_ENDMATXSND |
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TX39_SIBDMACTRL_ENDMARXTEL |
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TX39_SIBDMACTRL_ENDMATXTEL);
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tx_conf_write(tc, TX39_SIBDMACTRL_REG, reg);
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/*
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* Enable subframe0 (BETTY)
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*/
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reg = tx_conf_read(tc, TX39_SIBCTRL_REG);
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reg |= TX39_SIBCTRL_ENSF0;
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tx_conf_write(tc, TX39_SIBCTRL_REG, reg);
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}
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void
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tx39sib_enable2(struct device *dev)
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{
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struct tx39sib_softc *sc = (void*)dev;
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tx_chipset_tag_t tc = sc->sc_tc;
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txreg_t reg;
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reg = tx_conf_read(tc, TX39_SIBCTRL_REG);
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reg |= TX39_SIBCTRL_ENSIB;
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tx_conf_write(tc, TX39_SIBCTRL_REG, reg);
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}
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void
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tx39sib_disable(struct device *dev)
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{
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struct tx39sib_softc *sc = (void*)dev;
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tx_chipset_tag_t tc = sc->sc_tc;
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txreg_t reg;
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/* disable codec side */
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/* notyet */
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/* disable TX39 side */
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reg = tx_conf_read(tc, TX39_SIBCTRL_REG);
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reg &= ~(TX39_SIBCTRL_ENTEL | TX39_SIBCTRL_ENSND);
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tx_conf_write(tc, TX39_SIBCTRL_REG, reg);
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/*
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* Disable subframe0/1 (BETTY/external codec)
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*/
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reg = tx_conf_read(tc, TX39_SIBCTRL_REG);
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reg &= ~TX39_SIBCTRL_ENSF0;
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reg &= ~(TX39_SIBCTRL_ENSF1 | TX39_SIBCTRL_SELTELSF1 |
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TX39_SIBCTRL_SELSNDSF1);
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tx_conf_write(tc, TX39_SIBCTRL_REG, reg);
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/* disable TX39SIB module */
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reg &= ~TX39_SIBCTRL_ENSIB;
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tx_conf_write(tc, TX39_SIBCTRL_REG, reg);
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}
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int
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tx39sib_clock(struct device *dev)
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{
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struct tx39sib_softc *sc = (void*)dev;
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return (TX39_CLK2X / sibsclk_divide_table[sc->sc_param.sp_clock]);
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}
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int
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tx39sib_search(struct device *parent, struct cfdata *cf, void *aux)
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{
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struct tx39sib_softc *sc = (void*)parent;
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struct txsib_attach_args sa;
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sa.sa_tc = sc->sc_tc;
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sa.sa_slot = cf->cf_loc[TXSIBIFCF_SLOT];
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sa.sa_snd_rate = sc->sc_param.sp_snd_rate;
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sa.sa_tel_rate = sc->sc_param.sp_tel_rate;
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if (sa.sa_slot == TXSIBIFCF_SLOT_DEFAULT) {
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printf("tx39sib_search: wildcarded slot, skipping\n");
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return (0);
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}
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if (!(sc->sc_attached & (1 << sa.sa_slot)) &&/* not attached slot */
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(*cf->cf_attach->ca_match)(parent, cf, &sa)) {
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config_attach(parent, cf, &sa, tx39sib_print);
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sc->sc_attached |= (1 << sa.sa_slot);
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}
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return (0);
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}
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int
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tx39sib_print(void *aux, const char *pnp)
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{
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struct txsib_attach_args *sa = aux;
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printf(" slot %d", sa->sa_slot);
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return (QUIET);
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}
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/*
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* sync access method. don't use runtime.
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*/
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__inline__ int
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__txsibsf0_ready(tx_chipset_tag_t tc)
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{
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int i;
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tx_conf_write(tc, TX39_INTRSTATUS1_REG, TX39_INTRSTATUS1_SIBSF0INT);
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for (i = 0; (!(tx_conf_read(tc, TX39_INTRSTATUS1_REG) &
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TX39_INTRSTATUS1_SIBSF0INT)) && i < 1000; i++) {
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if (i > 100 && !(i % 100)) {
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printf("sf0 busy loop: retry count %d\n", i);
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}
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}
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if (i >= 1000) {
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printf("sf0 busy\n");
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return (0);
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}
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return (1);
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}
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void
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txsibsf0_reg_write(tx_chipset_tag_t tc, int addr, u_int16_t val)
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{
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txreg_t reg;
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reg = txsibsf0_read(tc, addr);
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reg |= TX39_SIBSF0_WRITE;
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TX39_SIBSF0_REGDATA_CLR(reg);
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reg = TX39_SIBSF0_REGDATA_SET(reg, val);
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__txsibsf0_ready(tc);
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tx_conf_write(tc, TX39_SIBSF0CTRL_REG, reg);
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}
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u_int16_t
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txsibsf0_reg_read(tx_chipset_tag_t tc, int addr)
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{
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return (TX39_SIBSF0_REGDATA(txsibsf0_read(tc, addr)));
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}
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u_int32_t
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txsibsf0_read(tx_chipset_tag_t tc, int addr)
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{
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txreg_t reg;
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int retry = 3;
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do {
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reg = TX39_SIBSF0_REGADDR_SET(0, addr);
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__txsibsf0_ready(tc);
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tx_conf_write(tc, TX39_SIBSF0CTRL_REG, reg);
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__txsibsf0_ready(tc);
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reg = tx_conf_read(tc, TX39_SIBSF0STAT_REG);
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} while ((TX39_SIBSF0_REGADDR(reg) != addr) && --retry > 0);
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if (retry <= 0)
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printf("txsibsf0_read: command failed\n");
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return (reg);
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}
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#ifdef TX39SIBDEBUG
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#define ISSETPRINT_CTRL(r, m) \
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__is_set_print(r, TX39_SIBCTRL_##m, #m)
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#define ISSETPRINT_DMACTRL(r, m) \
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__is_set_print(r, TX39_SIBDMACTRL_##m, #m)
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void
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tx39sib_dump(struct tx39sib_softc *sc)
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{
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tx_chipset_tag_t tc = sc->sc_tc;
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txreg_t reg;
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reg = tx_conf_read(tc, TX39_SIBCTRL_REG);
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ISSETPRINT_CTRL(reg, SIBIRQ);
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ISSETPRINT_CTRL(reg, ENCNTTEST);
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ISSETPRINT_CTRL(reg, ENDMATEST);
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ISSETPRINT_CTRL(reg, SNDMONO);
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ISSETPRINT_CTRL(reg, RMONOSNDIN);
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ISSETPRINT_CTRL(reg, TEL16);
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ISSETPRINT_CTRL(reg, SND16);
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ISSETPRINT_CTRL(reg, SELTELSF1);
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ISSETPRINT_CTRL(reg, SELSNDSF1);
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ISSETPRINT_CTRL(reg, ENTEL);
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ISSETPRINT_CTRL(reg, ENSND);
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ISSETPRINT_CTRL(reg, SIBLOOP);
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ISSETPRINT_CTRL(reg, ENSF1);
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ISSETPRINT_CTRL(reg, ENSF0);
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ISSETPRINT_CTRL(reg, ENSIB);
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printf("\n");
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printf("SCLKDIV %d\n", TX39_SIBCTRL_SCLKDIV(reg));
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printf("TELFSDIV %d\n", TX39_SIBCTRL_TELFSDIV(reg));
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printf("SNDFSDIV %d\n", TX39_SIBCTRL_SNDFSDIV(reg));
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reg = tx_conf_read(tc, TX39_SIBDMACTRL_REG);
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ISSETPRINT_DMACTRL(reg, SNDBUFF1TIME);
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ISSETPRINT_DMACTRL(reg, SNDDMALOOP);
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ISSETPRINT_DMACTRL(reg, ENDMARXSND);
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ISSETPRINT_DMACTRL(reg, ENDMATXSND);
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ISSETPRINT_DMACTRL(reg, TELBUFF1TIME);
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ISSETPRINT_DMACTRL(reg, TELDMALOOP);
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ISSETPRINT_DMACTRL(reg, ENDMARXTEL);
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ISSETPRINT_DMACTRL(reg, ENDMATXTEL);
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printf("\n");
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printf("SNDDMAPTR %d\n", TX39_SIBDMACTRL_TELDMAPTR(reg));
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printf("TELDMAPTR %d\n", TX39_SIBDMACTRL_SNDDMAPTR(reg));
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}
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#endif /* TX39SIBDEBUG */
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