/* $NetBSD: tx39sib.c,v 1.20 2008/04/28 20:23:22 martin 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. */ /* * TX39 SIB (Serial Interface Bus) module. */ #include __KERNEL_RCSID(0, "$NetBSD: tx39sib.c,v 1.20 2008/04/28 20:23:22 martin Exp $"); #undef TX39SIBDEBUG #include #include #include #include #include #include #include #include #include #include "locators.h" #ifdef TX39SIBDEBUG int tx39sibdebug = 0; #define DPRINTF(arg) if (tx39sibdebug) printf arg; #else #define DPRINTF(arg) #endif int tx39sib_match(struct device *, struct cfdata *, void *); void tx39sib_attach(struct device *, struct device *, void *); int tx39sib_print(void *, const char *); int tx39sib_search(struct device *, struct cfdata *, const int *, void *); #define TX39_CLK2X 18432000 const int sibsclk_divide_table[8] = { 2, 3, 4, 5, 6, 8, 10, 12 }; struct tx39sib_param { /* SIB clock rate */ int sp_clock; /* * SIBMCLK = 18.432MHz = (CLK2X /4) * SIBSCLK = SIBMCLK / sp_clock * sp_clock start end divide module * 0 7 8 2 * 1 6 8 3 * 2 6 9 4 * 3 5 9 5 * 4 5 10 6 * 5 4 11 8 * 6 3 12 10 * 7 2 13 12 */ /* sampling rate */ int sp_snd_rate; /* SNDFSDIV + 1 */ int sp_tel_rate; /* TELFSDIV + 1 */ /* * Fs = (SIBSCLK * 2) / ((FSDIV + 1) * 64) * FSDIV + 1 sampling rate * 15 19.2k (1.6% error vs. CD-XA) * 13 22.154k (0.47% error vs. CD-Audio) * 22 7.85k (1.8% error vs. 8k) */ /* data format 16/8bit */ int sp_sf0sndmode; int sp_sf0telmode; }; struct tx39sib_param tx39sib_param_default_3912 = { 0, /* SIBSCLK = 9.216MHz (div2) */ #if 0 /* setting sample */ 40, /* audio: 7.2kHz */ 26, /* audio: CD-Audio(/4) 11.077kHz*/ 6, /* audio: 48kHz */ #endif 13, /* audio: CD-Audio(/2 = 22.050) 22.154kHz*/ 40, /* telecom: 7.2kHz */ TX39_SIBCTRL_SND16, /* Audio 16bit mono */ TX39_SIBCTRL_TEL16 /* Telecom 16bit mono */ }; struct tx39sib_param tx39sib_param_default_3922 = { 7, /* SIBSCLK = 9.216MHz (div1) */ 13, /* audio: CD-Audio(/2 = 22.050) 22.154kHz*/ 40, /* telecom: 7.2kHz */ TX39_SIBCTRL_SND16, /* Audio 16bit mono */ TX39_SIBCTRL_TEL16 /* Telecom 16bit mono */ }; struct tx39sib_softc { struct device sc_dev; tx_chipset_tag_t sc_tc; struct tx39sib_param sc_param; int sc_attached; }; inline int __txsibsf0_ready(tx_chipset_tag_t); #ifdef TX39SIBDEBUG void tx39sib_dump(struct tx39sib_softc *); #endif CFATTACH_DECL(tx39sib, sizeof(struct tx39sib_softc), tx39sib_match, tx39sib_attach, NULL, NULL); int tx39sib_match(struct device *parent, struct cfdata *cf, void *aux) { return (ATTACH_FIRST); } void tx39sib_attach(struct device *parent, struct device *self, void *aux) { struct txsim_attach_args *ta = aux; struct tx39sib_softc *sc = (void*)self; tx_chipset_tag_t tc; sc->sc_tc = tc = ta->ta_tc; /* set default param */ #ifdef TX391X sc->sc_param = tx39sib_param_default_3912; #endif /* TX391X */ #ifdef TX392X sc->sc_param = tx39sib_param_default_3922; #endif /* TX392X */ #define MHZ(a) ((a) / 1000000), (((a) % 1000000) / 1000) printf(": %d.%03d MHz", MHZ(tx39sib_clock(self))); printf("\n"); #ifdef TX39SIBDEBUG if (tx39sibdebug) tx39sib_dump(sc); #endif /* enable subframe0 */ tx39sib_enable1(self); /* enable SIB */ tx39sib_enable2(self); #ifdef TX39SIBDEBUG if (tx39sibdebug) tx39sib_dump(sc); #endif config_search_ia(tx39sib_search, self, "txsibif", tx39sib_print); } void tx39sib_enable1(struct device *dev) { struct tx39sib_softc *sc = (void*)dev; struct tx39sib_param *param = &sc->sc_param; tx_chipset_tag_t tc = sc->sc_tc; txreg_t reg; /* disable SIB */ tx39sib_disable(dev); /* setup */ reg = 0; /* SIB clock rate */ reg = TX39_SIBCTRL_SCLKDIV_SET(reg, param->sp_clock); /* sampling rate (sound) */ reg = TX39_SIBCTRL_SNDFSDIV_SET(reg, param->sp_snd_rate - 1); /* sampling rate (telecom) */ reg = TX39_SIBCTRL_TELFSDIV_SET(reg, param->sp_tel_rate - 1); /* data format (8/16bit) */ reg |= param->sp_sf0sndmode; reg |= param->sp_sf0telmode; tx_conf_write(tc, TX39_SIBCTRL_REG, reg); /* DMA */ reg = tx_conf_read(tc, TX39_SIBDMACTRL_REG); reg &= ~(TX39_SIBDMACTRL_ENDMARXSND | TX39_SIBDMACTRL_ENDMATXSND | TX39_SIBDMACTRL_ENDMARXTEL | TX39_SIBDMACTRL_ENDMATXTEL); tx_conf_write(tc, TX39_SIBDMACTRL_REG, reg); /* * Enable subframe0 (BETTY) */ reg = tx_conf_read(tc, TX39_SIBCTRL_REG); reg |= TX39_SIBCTRL_ENSF0; tx_conf_write(tc, TX39_SIBCTRL_REG, reg); } void tx39sib_enable2(struct device *dev) { struct tx39sib_softc *sc = (void*)dev; tx_chipset_tag_t tc = sc->sc_tc; txreg_t reg; reg = tx_conf_read(tc, TX39_SIBCTRL_REG); reg |= TX39_SIBCTRL_ENSIB; tx_conf_write(tc, TX39_SIBCTRL_REG, reg); } void tx39sib_disable(struct device *dev) { struct tx39sib_softc *sc = (void*)dev; tx_chipset_tag_t tc = sc->sc_tc; txreg_t reg; /* disable codec side */ /* notyet */ /* disable TX39 side */ reg = tx_conf_read(tc, TX39_SIBCTRL_REG); reg &= ~(TX39_SIBCTRL_ENTEL | TX39_SIBCTRL_ENSND); tx_conf_write(tc, TX39_SIBCTRL_REG, reg); /* * Disable subframe0/1 (BETTY/external codec) */ reg = tx_conf_read(tc, TX39_SIBCTRL_REG); reg &= ~TX39_SIBCTRL_ENSF0; reg &= ~(TX39_SIBCTRL_ENSF1 | TX39_SIBCTRL_SELTELSF1 | TX39_SIBCTRL_SELSNDSF1); tx_conf_write(tc, TX39_SIBCTRL_REG, reg); /* disable TX39SIB module */ reg &= ~TX39_SIBCTRL_ENSIB; tx_conf_write(tc, TX39_SIBCTRL_REG, reg); } int tx39sib_clock(struct device *dev) { struct tx39sib_softc *sc = (void*)dev; return (TX39_CLK2X / sibsclk_divide_table[sc->sc_param.sp_clock]); } int tx39sib_search(struct device *parent, struct cfdata *cf, const int *ldesc, void *aux) { struct tx39sib_softc *sc = (void*)parent; struct txsib_attach_args sa; sa.sa_tc = sc->sc_tc; sa.sa_slot = cf->cf_loc[TXSIBIFCF_SLOT]; sa.sa_snd_rate = sc->sc_param.sp_snd_rate; sa.sa_tel_rate = sc->sc_param.sp_tel_rate; if (sa.sa_slot == TXSIBIFCF_SLOT_DEFAULT) { printf("tx39sib_search: wildcarded slot, skipping\n"); return (0); } if (!(sc->sc_attached & (1 << sa.sa_slot)) &&/* not attached slot */ config_match(parent, cf, &sa)) { config_attach(parent, cf, &sa, tx39sib_print); sc->sc_attached |= (1 << sa.sa_slot); } return (0); } int tx39sib_print(void *aux, const char *pnp) { struct txsib_attach_args *sa = aux; aprint_normal(" slot %d", sa->sa_slot); return (QUIET); } /* * sync access method. don't use runtime. */ inline int __txsibsf0_ready(tx_chipset_tag_t tc) { int i; tx_conf_write(tc, TX39_INTRSTATUS1_REG, TX39_INTRSTATUS1_SIBSF0INT); for (i = 0; (!(tx_conf_read(tc, TX39_INTRSTATUS1_REG) & TX39_INTRSTATUS1_SIBSF0INT)) && i < 1000; i++) { if (i > 100 && !(i % 100)) { printf("sf0 busy loop: retry count %d\n", i); } } if (i >= 1000) { printf("sf0 busy\n"); return (0); } return (1); } void txsibsf0_reg_write(tx_chipset_tag_t tc, int addr, u_int16_t val) { txreg_t reg; reg = txsibsf0_read(tc, addr); reg |= TX39_SIBSF0_WRITE; TX39_SIBSF0_REGDATA_CLR(reg); reg = TX39_SIBSF0_REGDATA_SET(reg, val); __txsibsf0_ready(tc); tx_conf_write(tc, TX39_SIBSF0CTRL_REG, reg); } u_int16_t txsibsf0_reg_read(tx_chipset_tag_t tc, int addr) { return (TX39_SIBSF0_REGDATA(txsibsf0_read(tc, addr))); } u_int32_t txsibsf0_read(tx_chipset_tag_t tc, int addr) { txreg_t reg; int retry = 3; do { reg = TX39_SIBSF0_REGADDR_SET(0, addr); __txsibsf0_ready(tc); tx_conf_write(tc, TX39_SIBSF0CTRL_REG, reg); __txsibsf0_ready(tc); reg = tx_conf_read(tc, TX39_SIBSF0STAT_REG); } while ((TX39_SIBSF0_REGADDR(reg) != addr) && --retry > 0); if (retry <= 0) printf("txsibsf0_read: command failed\n"); return (reg); } #ifdef TX39SIBDEBUG #define ISSETPRINT_CTRL(r, m) \ dbg_bitmask_print(r, TX39_SIBCTRL_##m, #m) #define ISSETPRINT_DMACTRL(r, m) \ dbg_bitmask_print(r, TX39_SIBDMACTRL_##m, #m) void tx39sib_dump(struct tx39sib_softc *sc) { tx_chipset_tag_t tc = sc->sc_tc; txreg_t reg; reg = tx_conf_read(tc, TX39_SIBCTRL_REG); ISSETPRINT_CTRL(reg, SIBIRQ); ISSETPRINT_CTRL(reg, ENCNTTEST); ISSETPRINT_CTRL(reg, ENDMATEST); ISSETPRINT_CTRL(reg, SNDMONO); ISSETPRINT_CTRL(reg, RMONOSNDIN); ISSETPRINT_CTRL(reg, TEL16); ISSETPRINT_CTRL(reg, SND16); ISSETPRINT_CTRL(reg, SELTELSF1); ISSETPRINT_CTRL(reg, SELSNDSF1); ISSETPRINT_CTRL(reg, ENTEL); ISSETPRINT_CTRL(reg, ENSND); ISSETPRINT_CTRL(reg, SIBLOOP); ISSETPRINT_CTRL(reg, ENSF1); ISSETPRINT_CTRL(reg, ENSF0); ISSETPRINT_CTRL(reg, ENSIB); printf("\n"); printf("SCLKDIV %d\n", TX39_SIBCTRL_SCLKDIV(reg)); printf("TELFSDIV %d\n", TX39_SIBCTRL_TELFSDIV(reg)); printf("SNDFSDIV %d\n", TX39_SIBCTRL_SNDFSDIV(reg)); reg = tx_conf_read(tc, TX39_SIBDMACTRL_REG); ISSETPRINT_DMACTRL(reg, SNDBUFF1TIME); ISSETPRINT_DMACTRL(reg, SNDDMALOOP); ISSETPRINT_DMACTRL(reg, ENDMARXSND); ISSETPRINT_DMACTRL(reg, ENDMATXSND); ISSETPRINT_DMACTRL(reg, TELBUFF1TIME); ISSETPRINT_DMACTRL(reg, TELDMALOOP); ISSETPRINT_DMACTRL(reg, ENDMARXTEL); ISSETPRINT_DMACTRL(reg, ENDMATXTEL); printf("\n"); printf("SNDDMAPTR %d\n", TX39_SIBDMACTRL_TELDMAPTR(reg)); printf("TELDMAPTR %d\n", TX39_SIBDMACTRL_SNDDMAPTR(reg)); } #endif /* TX39SIBDEBUG */