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ucbsnd.c revision 1.14.6.2
      1  1.14.6.1     skrll /*	$NetBSD: ucbsnd.c,v 1.14.6.2 2004/09/18 14:34:52 skrll Exp $ */
      2       1.1       uch 
      3       1.6       uch /*-
      4       1.6       uch  * Copyright (c) 2000 The NetBSD Foundation, Inc.
      5       1.1       uch  * All rights reserved.
      6       1.1       uch  *
      7       1.6       uch  * This code is derived from software contributed to The NetBSD Foundation
      8       1.6       uch  * by UCHIYAMA Yasushi.
      9       1.6       uch  *
     10       1.1       uch  * Redistribution and use in source and binary forms, with or without
     11       1.1       uch  * modification, are permitted provided that the following conditions
     12       1.1       uch  * are met:
     13       1.1       uch  * 1. Redistributions of source code must retain the above copyright
     14       1.1       uch  *    notice, this list of conditions and the following disclaimer.
     15       1.6       uch  * 2. Redistributions in binary form must reproduce the above copyright
     16       1.6       uch  *    notice, this list of conditions and the following disclaimer in the
     17       1.6       uch  *    documentation and/or other materials provided with the distribution.
     18       1.6       uch  * 3. All advertising materials mentioning features or use of this software
     19       1.6       uch  *    must display the following acknowledgement:
     20       1.6       uch  *        This product includes software developed by the NetBSD
     21       1.6       uch  *        Foundation, Inc. and its contributors.
     22       1.6       uch  * 4. Neither the name of The NetBSD Foundation nor the names of its
     23       1.6       uch  *    contributors may be used to endorse or promote products derived
     24       1.6       uch  *    from this software without specific prior written permission.
     25       1.1       uch  *
     26       1.6       uch  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     27       1.6       uch  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     28       1.6       uch  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     29       1.6       uch  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     30       1.6       uch  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     31       1.6       uch  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     32       1.6       uch  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     33       1.6       uch  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     34       1.6       uch  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     35       1.6       uch  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     36       1.6       uch  * POSSIBILITY OF SUCH DAMAGE.
     37       1.1       uch  */
     38       1.1       uch 
     39       1.1       uch /*
     40       1.1       uch  * Device driver for PHILIPS UCB1200 Advanced modem/audio analog front-end
     41       1.1       uch  *	Audio codec part.
     42       1.3       uch  *
     43       1.3       uch  * /dev/ucbsnd0 : sampling rate 22.154kHz monoral 16bit straight PCM device.
     44       1.1       uch  */
     45       1.1       uch 
     46  1.14.6.1     skrll #include <sys/cdefs.h>
     47  1.14.6.1     skrll __KERNEL_RCSID(0, "$NetBSD: ucbsnd.c,v 1.14.6.2 2004/09/18 14:34:52 skrll Exp $");
     48  1.14.6.1     skrll 
     49       1.1       uch #include "opt_use_poll.h"
     50       1.1       uch 
     51       1.1       uch #include <sys/param.h>
     52       1.1       uch #include <sys/systm.h>
     53       1.3       uch #include <sys/conf.h>
     54       1.3       uch #include <sys/malloc.h>
     55       1.1       uch #include <sys/device.h>
     56       1.3       uch #include <sys/proc.h>
     57       1.3       uch #include <sys/endian.h>
     58       1.1       uch 
     59       1.7   thorpej #include <mips/cache.h>
     60       1.7   thorpej 
     61       1.1       uch #include <machine/bus.h>
     62       1.1       uch #include <machine/intr.h>
     63       1.1       uch 
     64       1.1       uch #include <hpcmips/tx/tx39var.h>
     65       1.1       uch #include <hpcmips/tx/tx39sibvar.h>
     66       1.1       uch #include <hpcmips/tx/tx39sibreg.h>
     67       1.1       uch #include <hpcmips/tx/tx39icureg.h>
     68       1.1       uch #include <hpcmips/tx/txsnd.h>
     69       1.1       uch 
     70       1.1       uch #include <hpcmips/dev/ucb1200var.h>
     71       1.1       uch #include <hpcmips/dev/ucb1200reg.h>
     72       1.1       uch 
     73       1.3       uch #define AUDIOUNIT(x)		(minor(x)&0x0f)
     74       1.3       uch #define AUDIODEV(x)		(minor(x)&0xf0)
     75       1.4       uch #define	splaudio	splbio	/* XXX */
     76       1.3       uch 
     77       1.1       uch #ifdef UCBSNDDEBUG
     78       1.1       uch int	ucbsnd_debug = 1;
     79       1.1       uch #define	DPRINTF(arg) if (ucbsnd_debug) printf arg;
     80       1.1       uch #define	DPRINTFN(n, arg) if (ucbsnd_debug > (n)) printf arg;
     81       1.1       uch #else
     82       1.1       uch #define	DPRINTF(arg)
     83       1.1       uch #define DPRINTFN(n, arg)
     84       1.1       uch #endif
     85       1.1       uch 
     86       1.3       uch #define UCBSND_BUFBLOCK		5
     87       1.3       uch /*
     88       1.3       uch  * XXX temporary DMA buffer
     89       1.3       uch  */
     90       1.3       uch static u_int8_t dmabuf_static[TX39_SIBDMA_SIZE * UCBSND_BUFBLOCK] __attribute__((__aligned__(16))); /* XXX */
     91       1.3       uch static size_t	dmabufcnt_static[UCBSND_BUFBLOCK]; /* XXX */
     92       1.3       uch 
     93       1.1       uch enum ucbsnd_state {
     94       1.1       uch /* 0 */	UCBSND_IDLE,
     95       1.1       uch /* 1 */	UCBSND_INIT,
     96       1.1       uch /* 2 */ UCBSND_ENABLE_SAMPLERATE,
     97       1.1       uch /* 3 */ UCBSND_ENABLE_OUTPUTPATH,
     98       1.3       uch /* 4 */ UCBSND_ENABLE_SETVOLUME,
     99       1.1       uch /* 5 */ UCBSND_ENABLE_SPEAKER0,
    100       1.1       uch /* 6 */ UCBSND_ENABLE_SPEAKER1,
    101       1.1       uch /* 7 */ UCBSND_TRANSITION_PIO,
    102       1.1       uch /* 8 */ UCBSND_PIO,
    103       1.1       uch /* 9 */ UCBSND_TRANSITION_DISABLE,
    104       1.1       uch /*10 */ UCBSND_DISABLE_OUTPUTPATH,
    105       1.1       uch /*11 */ UCBSND_DISABLE_SPEAKER0,
    106       1.1       uch /*12 */ UCBSND_DISABLE_SPEAKER1,
    107       1.3       uch /*13 */	UCBSND_DISABLE_SIB,
    108       1.3       uch /*14 */ UCBSND_DMASTART,
    109       1.3       uch /*15 */ UCBSND_DMAEND,
    110       1.3       uch };
    111       1.3       uch 
    112       1.3       uch struct ring_buf {
    113       1.3       uch 	u_int32_t rb_buf;	/* buffer start address */
    114       1.3       uch 	size_t	*rb_bufcnt;	/* effective data count (max rb_blksize)*/
    115       1.3       uch 
    116       1.3       uch 	size_t	rb_bufsize;	/* total amount of buffer */
    117       1.3       uch 	int	rb_blksize;	/* DMA block size */
    118       1.3       uch 	int	rb_maxblks;	/* # of blocks in ring */
    119       1.3       uch 
    120       1.3       uch 	int	rb_inp;		/* start of input (to buffer) */
    121       1.3       uch 	int	rb_outp;	/* output pointer */
    122       1.1       uch };
    123       1.1       uch 
    124       1.1       uch struct ucbsnd_softc {
    125       1.1       uch 	struct device		sc_dev;
    126       1.1       uch 	struct device		*sc_sib; /* parent (TX39 SIB module) */
    127       1.1       uch 	struct device		*sc_ucb; /* parent (UCB1200 module) */
    128       1.1       uch 	tx_chipset_tag_t	sc_tc;
    129       1.1       uch 
    130       1.3       uch 	struct	tx_sound_tag	sc_tag;
    131       1.3       uch 	int			sc_mute;
    132       1.1       uch 
    133       1.1       uch 	/*
    134       1.1       uch 	 *  audio codec state machine
    135       1.1       uch 	 */
    136       1.3       uch 	int		sa_transfer_mode;
    137       1.3       uch #define UCBSND_TRANSFERMODE_DMA		0
    138       1.3       uch #define UCBSND_TRANSFERMODE_PIO		1
    139       1.1       uch 	enum ucbsnd_state sa_state;
    140       1.3       uch 	int		sa_snd_attenuation;
    141       1.3       uch #define UCBSND_DEFAULT_ATTENUATION	0	/* Full volume */
    142       1.1       uch 	int		sa_snd_rate; /* passed down from SIB module */
    143       1.1       uch 	int		sa_tel_rate;
    144       1.1       uch 	void*		sa_sf0ih;
    145       1.1       uch 	void*		sa_sndih;
    146       1.1       uch 	int		sa_retry;
    147       1.1       uch 	int		sa_cnt; /* misc counter */
    148       1.3       uch 
    149       1.3       uch 	/*
    150       1.3       uch 	 *  input buffer
    151       1.3       uch 	 */
    152       1.3       uch 	size_t		sa_dmacnt;
    153       1.3       uch 	struct ring_buf sc_rb;
    154       1.1       uch };
    155       1.1       uch 
    156       1.6       uch int	ucbsnd_match(struct device*, struct cfdata*, void*);
    157       1.6       uch void	ucbsnd_attach(struct device*, struct device*, void*);
    158       1.1       uch 
    159       1.6       uch int	ucbsnd_exec_output(void*);
    160       1.6       uch int	ucbsnd_busy(void*);
    161       1.1       uch 
    162       1.6       uch void	ucbsnd_sound_init(struct ucbsnd_softc*);
    163       1.6       uch void	__ucbsnd_sound_click(tx_sound_tag_t);
    164       1.6       uch void	__ucbsnd_sound_mute(tx_sound_tag_t, int);
    165       1.6       uch 
    166       1.6       uch int	ucbsndwrite_subr(struct ucbsnd_softc *, u_int32_t *, size_t,
    167       1.6       uch 	    struct uio *);
    168       1.6       uch 
    169       1.6       uch int	ringbuf_allocate(struct ring_buf*, size_t, int);
    170       1.6       uch void	ringbuf_deallocate(struct ring_buf*);
    171       1.6       uch void	ringbuf_reset(struct ring_buf*);
    172       1.6       uch int	ringbuf_full(struct ring_buf*);
    173       1.6       uch void	*ringbuf_producer_get(struct ring_buf*);
    174       1.6       uch void	ringbuf_producer_return(struct ring_buf*, size_t);
    175       1.6       uch void	*ringbuf_consumer_get(struct ring_buf*, size_t*);
    176       1.6       uch void	ringbuf_consumer_return(struct ring_buf*);
    177       1.3       uch 
    178      1.11   thorpej CFATTACH_DECL(ucbsnd, sizeof(struct ucbsnd_softc),
    179      1.11   thorpej     ucbsnd_match, ucbsnd_attach, NULL, NULL);
    180       1.9   gehenna 
    181       1.9   gehenna dev_type_open(ucbsndopen);
    182       1.9   gehenna dev_type_close(ucbsndclose);
    183       1.9   gehenna dev_type_read(ucbsndread);
    184       1.9   gehenna dev_type_write(ucbsndwrite);
    185       1.9   gehenna 
    186       1.9   gehenna const struct cdevsw ucbsnd_cdevsw = {
    187      1.13  jdolecek 	ucbsndopen, ucbsndclose, ucbsndread, ucbsndwrite, nullioctl,
    188      1.14  jdolecek 	nostop, notty, nopoll, nullmmap, nokqfilter,
    189       1.1       uch };
    190       1.1       uch 
    191       1.1       uch int
    192       1.6       uch ucbsnd_match(struct device *parent, struct cfdata *cf, void *aux)
    193       1.1       uch {
    194       1.6       uch 
    195       1.6       uch 	return (1);
    196       1.1       uch }
    197       1.1       uch 
    198       1.1       uch void
    199       1.6       uch ucbsnd_attach(struct device *parent, struct device *self, void *aux)
    200       1.1       uch {
    201       1.1       uch 	struct ucb1200_attach_args *ucba = aux;
    202       1.1       uch 	struct ucbsnd_softc *sc = (void*)self;
    203       1.1       uch 	tx_chipset_tag_t tc;
    204       1.1       uch 
    205       1.1       uch 	tc = sc->sc_tc = ucba->ucba_tc;
    206       1.1       uch 	sc->sc_sib = ucba->ucba_sib;
    207       1.1       uch 	sc->sc_ucb = ucba->ucba_ucb;
    208       1.2       uch 
    209       1.2       uch 	/* register sound functions */
    210       1.1       uch 	ucbsnd_sound_init(sc);
    211       1.2       uch 
    212       1.1       uch 	sc->sa_snd_rate = ucba->ucba_snd_rate;
    213       1.1       uch 	sc->sa_tel_rate = ucba->ucba_tel_rate;
    214       1.1       uch 
    215       1.3       uch 	sc->sa_snd_attenuation = UCBSND_DEFAULT_ATTENUATION;
    216       1.1       uch #define KHZ(a) ((a) / 1000), (((a) % 1000))
    217       1.1       uch 	printf(": audio %d.%03d kHz telecom %d.%03d kHz",
    218       1.6       uch 	    KHZ((tx39sib_clock(sc->sc_sib) * 2) /
    219       1.6       uch 		(sc->sa_snd_rate * 64)),
    220       1.6       uch 	    KHZ((tx39sib_clock(sc->sc_sib) * 2) /
    221       1.6       uch 		(sc->sa_tel_rate * 64)));
    222       1.1       uch 
    223       1.1       uch 	ucb1200_state_install(parent, ucbsnd_busy, self,
    224       1.6       uch 	    UCB1200_SND_MODULE);
    225       1.1       uch 
    226       1.3       uch 	ringbuf_allocate(&sc->sc_rb, TX39_SIBDMA_SIZE, UCBSND_BUFBLOCK);
    227       1.3       uch 
    228       1.1       uch 	printf("\n");
    229       1.1       uch }
    230       1.1       uch 
    231       1.1       uch int
    232       1.6       uch ucbsnd_busy(void *arg)
    233       1.1       uch {
    234       1.1       uch 	struct ucbsnd_softc *sc = arg;
    235       1.1       uch 
    236       1.6       uch 	return (sc->sa_state != UCBSND_IDLE);
    237       1.1       uch }
    238       1.1       uch 
    239       1.1       uch int
    240       1.6       uch ucbsnd_exec_output(void *arg)
    241       1.1       uch {
    242       1.1       uch 	struct ucbsnd_softc *sc = arg;
    243       1.1       uch 	tx_chipset_tag_t tc = sc->sc_tc;
    244       1.1       uch 	txreg_t reg;
    245       1.3       uch 	u_int32_t *buf;
    246       1.3       uch 	size_t bufcnt;
    247       1.1       uch 
    248       1.1       uch 	switch (sc->sa_state) {
    249       1.1       uch 	default:
    250       1.1       uch 		panic("ucbsnd_exec_output: invalid state %d", sc->sa_state);
    251       1.1       uch 		/* NOTREACHED */
    252       1.1       uch 		break;
    253       1.1       uch 
    254       1.1       uch 	case UCBSND_IDLE:
    255       1.1       uch 		/* nothing to do */
    256       1.6       uch 		return (0);
    257       1.1       uch 
    258       1.1       uch 	case UCBSND_INIT:
    259       1.1       uch 		sc->sa_sf0ih = tx_intr_establish(
    260       1.1       uch 			tc, MAKEINTR(1, TX39_INTRSTATUS1_SIBSF0INT),
    261       1.1       uch 			IST_EDGE, IPL_TTY, ucbsnd_exec_output, sc);
    262       1.1       uch 
    263       1.1       uch 		sc->sa_state = UCBSND_ENABLE_SAMPLERATE;
    264       1.6       uch 		return (0);
    265       1.1       uch 
    266       1.1       uch 	case UCBSND_ENABLE_SAMPLERATE:
    267       1.1       uch 		/* Enable UCB1200 side sample rate */
    268       1.1       uch 		reg = TX39_SIBSF0_WRITE;
    269       1.1       uch 		reg = TX39_SIBSF0_REGADDR_SET(reg, UCB1200_AUDIOCTRLA_REG);
    270       1.1       uch 		reg = TX39_SIBSF0_REGDATA_SET(reg, sc->sa_snd_rate);
    271       1.1       uch 		tx_conf_write(tc, TX39_SIBSF0CTRL_REG, reg);
    272       1.3       uch 
    273       1.1       uch 		sc->sa_state = UCBSND_ENABLE_OUTPUTPATH;
    274       1.6       uch 		return (0);
    275       1.3       uch 
    276       1.1       uch 	case UCBSND_ENABLE_OUTPUTPATH:
    277       1.1       uch 		/* Enable UCB1200 side */
    278       1.1       uch 		reg = TX39_SIBSF0_WRITE;
    279       1.1       uch 		reg = TX39_SIBSF0_REGADDR_SET(reg, UCB1200_AUDIOCTRLB_REG);
    280       1.3       uch 		reg = TX39_SIBSF0_REGDATA_SET(reg, sc->sa_snd_attenuation |
    281       1.6       uch 		    UCB1200_AUDIOCTRLB_OUTEN);
    282       1.1       uch 		tx_conf_write(tc, TX39_SIBSF0CTRL_REG, reg);
    283       1.1       uch 
    284       1.1       uch 		/* Enable SIB side */
    285       1.1       uch 		reg = tx_conf_read(tc, TX39_SIBCTRL_REG);
    286       1.1       uch 		tx_conf_write(tc, TX39_SIBCTRL_REG,
    287       1.6       uch 		    reg | TX39_SIBCTRL_ENSND);
    288       1.1       uch 
    289       1.1       uch 		sc->sa_state = UCBSND_ENABLE_SPEAKER0;
    290       1.1       uch 		sc->sa_retry = 10;
    291       1.6       uch 		return (0);
    292       1.1       uch 	case UCBSND_ENABLE_SPEAKER0:
    293       1.1       uch 		/* Speaker on */
    294       1.1       uch 
    295       1.1       uch 		reg = TX39_SIBSF0_REGADDR_SET(0, UCB1200_IO_DATA_REG);
    296       1.1       uch 		tx_conf_write(tc, TX39_SIBSF0CTRL_REG, reg);
    297       1.1       uch 
    298       1.1       uch 		sc->sa_state = UCBSND_ENABLE_SPEAKER1;
    299       1.6       uch 		return (0);
    300       1.1       uch 
    301       1.1       uch 	case UCBSND_ENABLE_SPEAKER1:
    302       1.1       uch 		reg = tx_conf_read(tc, TX39_SIBSF0STAT_REG);
    303       1.1       uch 		if ((TX39_SIBSF0_REGADDR(reg) != UCB1200_IO_DATA_REG) &&
    304       1.1       uch 		    --sc->sa_retry > 0) {
    305       1.1       uch 
    306       1.1       uch 			sc->sa_state = UCBSND_ENABLE_SPEAKER0;
    307       1.6       uch 			return (0);
    308       1.1       uch 		}
    309       1.1       uch 
    310       1.1       uch 		if (sc->sa_retry <= 0) {
    311       1.1       uch 			printf("ucbsnd_exec_output: subframe0 busy\n");
    312       1.1       uch 
    313       1.1       uch 			sc->sa_state = UCBSND_IDLE;
    314       1.6       uch 			return (0);
    315       1.1       uch 		}
    316       1.1       uch 
    317       1.1       uch 		reg |= TX39_SIBSF0_WRITE;
    318       1.1       uch 		reg |= UCB1200_IO_DATA_SPEAKER;
    319       1.1       uch 		tx_conf_write(tc, TX39_SIBSF0CTRL_REG, reg);
    320       1.1       uch 
    321       1.3       uch 		/*
    322       1.3       uch 		 * Begin to transfer.
    323       1.3       uch 		 */
    324       1.3       uch 		switch (sc->sa_transfer_mode) {
    325       1.3       uch 		case UCBSND_TRANSFERMODE_DMA:
    326       1.3       uch 			sc->sa_state = UCBSND_DMASTART;
    327       1.3       uch 			sc->sa_dmacnt = 0;
    328       1.3       uch 			break;
    329       1.3       uch 		case UCBSND_TRANSFERMODE_PIO:
    330       1.3       uch 			sc->sa_state = UCBSND_TRANSITION_PIO;
    331       1.3       uch 			break;
    332       1.3       uch 		}
    333       1.3       uch 
    334       1.6       uch 		return (0);
    335       1.3       uch 	case UCBSND_DMASTART:
    336       1.3       uch 		/* get data */
    337       1.3       uch 		if (sc->sa_dmacnt) /* return previous buffer */
    338       1.3       uch 			ringbuf_consumer_return(&sc->sc_rb);
    339       1.3       uch 		buf = ringbuf_consumer_get(&sc->sc_rb, &bufcnt);
    340       1.3       uch 		if (buf == 0) {
    341       1.3       uch 			sc->sa_state = UCBSND_DMAEND;
    342       1.6       uch 			return (0);
    343       1.3       uch 		}
    344       1.3       uch 
    345       1.3       uch 		if (sc->sa_dmacnt == 0) {
    346       1.3       uch 			/* change interrupt source */
    347       1.3       uch 			if (sc->sa_sf0ih) {
    348       1.3       uch 				tx_intr_disestablish(tc, sc->sa_sf0ih);
    349       1.3       uch 				sc->sa_sf0ih = 0;
    350       1.3       uch 			}
    351       1.3       uch 			sc->sa_sndih = tx_intr_establish(
    352       1.3       uch 				tc, MAKEINTR(1, TX39_INTRSTATUS1_SND1_0INT),
    353       1.3       uch 				IST_EDGE, IPL_TTY, ucbsnd_exec_output, sc);
    354       1.3       uch 		} else {
    355       1.3       uch 			wakeup(&sc->sc_rb);
    356       1.3       uch 		}
    357       1.3       uch 
    358       1.3       uch 		/* set DMA buffer address */
    359       1.3       uch 		tx_conf_write(tc, TX39_SIBSNDTXSTART_REG,
    360       1.6       uch 		    MIPS_KSEG0_TO_PHYS(buf));
    361       1.3       uch 
    362       1.3       uch 		/* set DMA buffer size */
    363       1.3       uch 		tx_conf_write(tc, TX39_SIBSIZE_REG,
    364       1.6       uch 		    TX39_SIBSIZE_SNDSIZE_SET(0, bufcnt));
    365       1.3       uch 
    366       1.3       uch 		tx_conf_write(tc, TX39_SIBSF0CTRL_REG, TX39_SIBSF0_SNDVALID);
    367       1.3       uch 
    368       1.3       uch 		/* kick DMA */
    369       1.3       uch 		reg = tx_conf_read(tc, TX39_SIBDMACTRL_REG);
    370       1.3       uch 		reg |= TX39_SIBDMACTRL_ENDMATXSND;
    371       1.3       uch 		tx_conf_write(tc, TX39_SIBDMACTRL_REG, reg);
    372       1.3       uch 
    373       1.3       uch 		/* set next */
    374       1.3       uch 		sc->sa_dmacnt += bufcnt;
    375       1.3       uch 
    376       1.3       uch 		break;
    377       1.1       uch 
    378       1.3       uch 	case UCBSND_DMAEND:
    379       1.3       uch 		sc->sa_state = UCBSND_TRANSITION_DISABLE;
    380       1.3       uch 		break;
    381       1.1       uch 	case UCBSND_TRANSITION_PIO:
    382       1.1       uch 		/* change interrupt source */
    383       1.3       uch 		if (sc->sa_sf0ih) {
    384       1.3       uch 			tx_intr_disestablish(tc, sc->sa_sf0ih);
    385       1.3       uch 			sc->sa_sf0ih = 0;
    386       1.3       uch 		}
    387       1.1       uch 		sc->sa_sndih = tx_intr_establish(
    388       1.1       uch 			tc, MAKEINTR(1, TX39_INTRSTATUS1_SNDININT),
    389       1.1       uch 			IST_EDGE, IPL_TTY, ucbsnd_exec_output, sc);
    390       1.1       uch 
    391       1.1       uch 		sc->sa_state = UCBSND_PIO;
    392       1.2       uch 		sc->sa_cnt = 0;
    393       1.6       uch 		return (0);
    394       1.1       uch 
    395       1.1       uch 	case UCBSND_PIO:
    396       1.3       uch 	{
    397       1.3       uch 		/* PIO test routine */
    398       1.3       uch 		int dummy_data = sc->sa_cnt * 3;
    399       1.3       uch 		tx_conf_write(tc, TX39_SIBSNDHOLD_REG,
    400       1.6       uch 		    dummy_data << 16 | dummy_data);
    401       1.1       uch 		tx_conf_write(tc, TX39_SIBSF0CTRL_REG, TX39_SIBSF0_SNDVALID);
    402       1.3       uch 		if (sc->sa_cnt++ > 50) {
    403       1.1       uch 			sc->sa_state = UCBSND_TRANSITION_DISABLE;
    404       1.3       uch 		}
    405       1.6       uch 		return (0);
    406       1.3       uch 	}
    407       1.1       uch 	case UCBSND_TRANSITION_DISABLE:
    408       1.1       uch 		/* change interrupt source */
    409       1.3       uch 		if (sc->sa_sndih) {
    410       1.3       uch 			tx_intr_disestablish(tc, sc->sa_sndih);
    411       1.3       uch 			sc->sa_sndih = 0;
    412       1.3       uch 		}
    413       1.1       uch 		sc->sa_sf0ih = tx_intr_establish(
    414       1.1       uch 			tc, MAKEINTR(1, TX39_INTRSTATUS1_SIBSF0INT),
    415       1.1       uch 			IST_EDGE, IPL_TTY, ucbsnd_exec_output, sc);
    416       1.1       uch 
    417       1.1       uch 		sc->sa_state = UCBSND_DISABLE_OUTPUTPATH;
    418       1.6       uch 		return (0);
    419       1.1       uch 
    420       1.1       uch 	case UCBSND_DISABLE_OUTPUTPATH:
    421       1.1       uch 		/* disable codec output path and mute */
    422       1.1       uch 		reg = TX39_SIBSF0_WRITE;
    423       1.1       uch 		reg = TX39_SIBSF0_REGADDR_SET(reg, UCB1200_AUDIOCTRLB_REG);
    424       1.1       uch 		reg = TX39_SIBSF0_REGDATA_SET(reg, UCB1200_AUDIOCTRLB_MUTE);
    425       1.1       uch 		tx_conf_write(tc, TX39_SIBSF0CTRL_REG, reg);
    426       1.1       uch 
    427       1.1       uch 		sc->sa_state = UCBSND_DISABLE_SPEAKER0;
    428       1.1       uch 		sc->sa_retry = 10;
    429       1.6       uch 		return (0);
    430       1.1       uch 
    431       1.1       uch 	case UCBSND_DISABLE_SPEAKER0:
    432       1.1       uch 		/* Speaker off */
    433       1.1       uch 		reg = TX39_SIBSF0_REGADDR_SET(0, UCB1200_IO_DATA_REG);
    434       1.1       uch 		tx_conf_write(tc, TX39_SIBSF0CTRL_REG, reg);
    435       1.1       uch 
    436       1.1       uch 		sc->sa_state = UCBSND_DISABLE_SPEAKER1;
    437       1.6       uch 		return (0);
    438       1.1       uch 
    439       1.1       uch 	case UCBSND_DISABLE_SPEAKER1:
    440       1.1       uch 		reg = tx_conf_read(tc, TX39_SIBSF0STAT_REG);
    441       1.1       uch 		if ((TX39_SIBSF0_REGADDR(reg) != UCB1200_IO_DATA_REG) &&
    442       1.1       uch 		    --sc->sa_retry > 0) {
    443       1.1       uch 
    444       1.1       uch 			sc->sa_state = UCBSND_DISABLE_SPEAKER0;
    445       1.6       uch 			return (0);
    446       1.1       uch 		}
    447       1.1       uch 
    448       1.1       uch 		if (sc->sa_retry <= 0) {
    449       1.1       uch 			printf("ucbsnd_exec_output: subframe0 busy\n");
    450       1.1       uch 
    451       1.1       uch 			sc->sa_state = UCBSND_IDLE;
    452       1.6       uch 			return (0);
    453       1.1       uch 		}
    454       1.1       uch 
    455       1.1       uch 		reg |= TX39_SIBSF0_WRITE;
    456       1.1       uch 		reg &= ~UCB1200_IO_DATA_SPEAKER;
    457       1.1       uch 		tx_conf_write(tc, TX39_SIBSF0CTRL_REG, reg);
    458       1.1       uch 
    459       1.1       uch 		sc->sa_state = UCBSND_DISABLE_SIB;
    460       1.6       uch 		return (0);
    461       1.1       uch 
    462       1.1       uch 	case UCBSND_DISABLE_SIB:
    463       1.1       uch 		/* Disable SIB side */
    464       1.1       uch 		reg = tx_conf_read(tc, TX39_SIBCTRL_REG);
    465       1.1       uch 		reg &= ~TX39_SIBCTRL_ENSND;
    466       1.1       uch 		tx_conf_write(tc, TX39_SIBCTRL_REG, reg);
    467       1.1       uch 
    468       1.1       uch 		/* end audio disable sequence */
    469       1.3       uch 		if (sc->sa_sf0ih) {
    470       1.3       uch 			tx_intr_disestablish(tc, sc->sa_sf0ih);
    471       1.3       uch 			sc->sa_sf0ih = 0;
    472       1.3       uch 		}
    473       1.1       uch 		sc->sa_state = UCBSND_IDLE;
    474       1.1       uch 
    475       1.6       uch 		return (0);
    476       1.1       uch 	}
    477       1.1       uch 
    478       1.6       uch 	return (0);
    479       1.1       uch }
    480       1.1       uch 
    481       1.1       uch /*
    482       1.1       uch  * global sound interface.
    483       1.1       uch  */
    484       1.1       uch void
    485       1.6       uch ucbsnd_sound_init(struct ucbsnd_softc *sc)
    486       1.1       uch {
    487       1.1       uch 	tx_sound_tag_t ts = &sc->sc_tag;
    488       1.1       uch 	tx_chipset_tag_t tc = sc->sc_tc;
    489       1.1       uch 
    490       1.1       uch 	ts->ts_v = sc;
    491       1.2       uch 	ts->ts_click	= __ucbsnd_sound_click;
    492       1.2       uch 	ts->ts_mute	= __ucbsnd_sound_mute;
    493       1.1       uch 
    494       1.1       uch 	tx_conf_register_sound(tc, ts);
    495       1.1       uch }
    496       1.1       uch 
    497       1.1       uch void
    498       1.6       uch __ucbsnd_sound_click(tx_sound_tag_t arg)
    499       1.1       uch {
    500       1.1       uch 	struct ucbsnd_softc *sc = (void*)arg;
    501       1.1       uch 
    502       1.2       uch 	if (!sc->sc_mute && sc->sa_state == UCBSND_IDLE) {
    503       1.3       uch 		sc->sa_transfer_mode = UCBSND_TRANSFERMODE_PIO;
    504       1.1       uch 		sc->sa_state = UCBSND_INIT;
    505       1.1       uch 		ucbsnd_exec_output((void*)sc);
    506       1.1       uch 	}
    507       1.1       uch }
    508       1.1       uch 
    509       1.2       uch void
    510       1.6       uch __ucbsnd_sound_mute(tx_sound_tag_t arg, int onoff)
    511       1.2       uch {
    512       1.2       uch 	struct ucbsnd_softc *sc = (void*)arg;
    513       1.6       uch 
    514       1.2       uch 	sc->sc_mute = onoff;
    515       1.3       uch }
    516       1.3       uch 
    517       1.3       uch /*
    518       1.3       uch  * device access
    519       1.3       uch  */
    520       1.3       uch extern struct cfdriver ucbsnd_cd;
    521       1.3       uch 
    522       1.3       uch int
    523       1.6       uch ucbsndopen(dev_t dev, int flags, int ifmt, struct proc *p)
    524       1.3       uch {
    525       1.3       uch 	int unit = AUDIOUNIT(dev);
    526       1.3       uch 	struct ucbsnd_softc *sc;
    527       1.4       uch 	int s;
    528       1.3       uch 
    529       1.3       uch 	if (unit >= ucbsnd_cd.cd_ndevs ||
    530       1.3       uch 	    (sc = ucbsnd_cd.cd_devs[unit]) == NULL)
    531       1.3       uch 		return (ENXIO);
    532       1.4       uch 
    533       1.4       uch 	s = splaudio();
    534       1.4       uch 	ringbuf_reset(&sc->sc_rb);
    535       1.4       uch 	splx(s);
    536       1.3       uch 
    537       1.3       uch 	return (0);
    538       1.3       uch }
    539       1.3       uch 
    540       1.3       uch int
    541       1.6       uch ucbsndclose(dev_t dev, int flags, int ifmt, struct proc *p)
    542       1.3       uch {
    543       1.3       uch 	int unit = AUDIOUNIT(dev);
    544       1.3       uch 	struct ucbsnd_softc *sc;
    545       1.3       uch 
    546       1.3       uch 	if (unit >= ucbsnd_cd.cd_ndevs ||
    547       1.3       uch 	    (sc = ucbsnd_cd.cd_devs[unit]) == NULL)
    548       1.3       uch 		return (ENXIO);
    549       1.3       uch 
    550       1.3       uch 	return (0);
    551       1.3       uch }
    552       1.3       uch 
    553       1.3       uch int
    554       1.6       uch ucbsndread(dev_t dev, struct uio *uio, int ioflag)
    555       1.3       uch {
    556       1.3       uch 	int unit = AUDIOUNIT(dev);
    557       1.3       uch 	struct ucbsnd_softc *sc;
    558       1.3       uch 	int error = 0;
    559       1.3       uch 
    560       1.3       uch 	if (unit >= ucbsnd_cd.cd_ndevs ||
    561       1.3       uch 	    (sc = ucbsnd_cd.cd_devs[unit]) == NULL)
    562       1.3       uch 		return (ENXIO);
    563       1.3       uch 	/* not supported yet */
    564       1.3       uch 
    565       1.3       uch 	return (error);
    566       1.3       uch }
    567       1.3       uch 
    568       1.3       uch int
    569       1.6       uch ucbsndwrite_subr(struct ucbsnd_softc *sc, u_int32_t *buf, size_t bufsize,
    570       1.6       uch     struct uio *uio)
    571       1.3       uch {
    572       1.3       uch 	int i, s, error;
    573       1.3       uch 
    574       1.3       uch 	error = uiomove(buf, bufsize, uio);
    575       1.3       uch 	/*
    576       1.3       uch 	 * inverse endian for UCB1200
    577       1.3       uch 	 */
    578       1.3       uch 	for (i = 0; i < bufsize / sizeof(int); i++)
    579       1.3       uch 		buf[i] = htobe32(buf[i]);
    580       1.7   thorpej 	mips_dcache_wbinv_range((vaddr_t)buf, bufsize);
    581       1.3       uch 
    582       1.3       uch 	ringbuf_producer_return(&sc->sc_rb, bufsize);
    583       1.3       uch 
    584       1.4       uch 	s = splaudio();
    585       1.3       uch 	if (sc->sa_state == UCBSND_IDLE && ringbuf_full(&sc->sc_rb)) {
    586       1.3       uch 		sc->sa_transfer_mode = UCBSND_TRANSFERMODE_DMA;
    587       1.3       uch 		sc->sa_state = UCBSND_INIT;
    588       1.3       uch 		ucbsnd_exec_output((void*)sc);
    589       1.3       uch 	}
    590       1.3       uch 	splx(s);
    591       1.3       uch 
    592       1.6       uch 	return (error);
    593       1.3       uch }
    594       1.3       uch 
    595       1.3       uch int
    596       1.6       uch ucbsndwrite(dev_t dev, struct uio *uio, int ioflag)
    597       1.3       uch {
    598       1.3       uch 	int unit = AUDIOUNIT(dev);
    599       1.3       uch 	struct ucbsnd_softc *sc;
    600       1.3       uch 	int len, error = 0;
    601       1.4       uch 	int i, n, s, rest;
    602       1.3       uch 	void *buf;
    603       1.3       uch 
    604       1.3       uch 	if (unit >= ucbsnd_cd.cd_ndevs ||
    605       1.3       uch 	    (sc = ucbsnd_cd.cd_devs[unit]) == NULL)
    606       1.3       uch 		return (ENXIO);
    607       1.3       uch 
    608       1.3       uch 	len = uio->uio_resid;
    609       1.3       uch 	n = (len + TX39_SIBDMA_SIZE - 1) / TX39_SIBDMA_SIZE;
    610       1.3       uch 	rest = len % TX39_SIBDMA_SIZE;
    611       1.3       uch 
    612       1.3       uch 	if (rest)
    613       1.3       uch 		--n;
    614       1.3       uch 
    615       1.3       uch 	for (i = 0; i < n; i++) {
    616       1.4       uch 		while (!(buf = ringbuf_producer_get(&sc->sc_rb))) {
    617       1.4       uch 			error = tsleep(&sc->sc_rb, PRIBIO, "ucbsnd", 1000);
    618       1.4       uch 			if (error)
    619       1.4       uch 				goto errout;
    620       1.4       uch 		}
    621       1.4       uch 
    622       1.3       uch 		error = ucbsndwrite_subr(sc, buf, TX39_SIBDMA_SIZE, uio);
    623       1.3       uch 		if (error)
    624       1.3       uch 			goto out;
    625       1.3       uch 	}
    626       1.3       uch 
    627       1.3       uch 	if (rest) {
    628       1.4       uch 		while (!(buf = ringbuf_producer_get(&sc->sc_rb))) {
    629       1.4       uch 			error = tsleep(&sc->sc_rb, PRIBIO, "ucbsnd", 1000);
    630       1.4       uch 			if (error)
    631       1.4       uch 				goto errout;
    632       1.4       uch 		}
    633       1.3       uch 
    634       1.3       uch 		error = ucbsndwrite_subr(sc, buf, rest, uio);
    635       1.3       uch 	}
    636       1.3       uch 
    637       1.3       uch  out:
    638       1.4       uch 	return (error);
    639       1.4       uch  errout:
    640       1.4       uch 	printf("%s: timeout. reset ring-buffer.\n", sc->sc_dev.dv_xname);
    641       1.4       uch 	s = splaudio();
    642       1.4       uch 	ringbuf_reset(&sc->sc_rb);
    643       1.4       uch 	splx(s);
    644       1.3       uch 
    645       1.3       uch 	return (error);
    646       1.3       uch }
    647       1.3       uch 
    648       1.3       uch /*
    649       1.3       uch  * Ring buffer.
    650       1.3       uch  */
    651       1.3       uch int
    652       1.6       uch ringbuf_allocate(struct ring_buf *rb, size_t blksize, int maxblk)
    653       1.3       uch {
    654       1.3       uch 	rb->rb_bufsize = blksize * maxblk;
    655       1.3       uch 	rb->rb_blksize = blksize;
    656       1.3       uch 	rb->rb_maxblks = maxblk;
    657       1.3       uch #if notyet
    658       1.3       uch 	rb->rb_buf = (u_int32_t)malloc(rb->rb_bufsize, M_DEVBUF, M_WAITOK);
    659       1.3       uch #else
    660       1.3       uch 	rb->rb_buf = (u_int32_t)dmabuf_static;
    661       1.3       uch #endif
    662       1.3       uch 	if (rb->rb_buf == 0) {
    663       1.3       uch 		printf("ringbuf_allocate: can't allocate buffer\n");
    664       1.6       uch 		return (1);
    665       1.3       uch 	}
    666       1.3       uch 	memset((char*)rb->rb_buf, 0, rb->rb_bufsize);
    667       1.3       uch #if notyet
    668       1.3       uch 	rb->rb_bufcnt = malloc(rb->rb_maxblks * sizeof(size_t), M_DEVBUF,
    669       1.6       uch 	    M_WAITOK);
    670       1.3       uch #else
    671       1.3       uch 	rb->rb_bufcnt = dmabufcnt_static;
    672       1.3       uch #endif
    673       1.3       uch 	if (rb->rb_bufcnt == 0) {
    674       1.3       uch 		printf("ringbuf_allocate: can't allocate buffer\n");
    675       1.6       uch 		return (1);
    676       1.3       uch 	}
    677       1.3       uch 	memset((char*)rb->rb_bufcnt, 0, rb->rb_maxblks * sizeof(size_t));
    678       1.3       uch 
    679       1.3       uch 	ringbuf_reset(rb);
    680       1.3       uch 
    681       1.6       uch 	return (0);
    682       1.3       uch }
    683       1.3       uch 
    684       1.3       uch void
    685       1.6       uch ringbuf_deallocate(struct ring_buf *rb)
    686       1.3       uch {
    687       1.3       uch #if notyet
    688       1.3       uch 	free((void*)rb->rb_buf, M_DEVBUF);
    689       1.3       uch 	free(rb->rb_bufcnt, M_DEVBUF);
    690       1.3       uch #endif
    691       1.3       uch }
    692       1.3       uch 
    693       1.3       uch void
    694       1.6       uch ringbuf_reset(struct ring_buf *rb)
    695       1.3       uch {
    696       1.3       uch 	rb->rb_outp = 0;
    697       1.3       uch 	rb->rb_inp = 0;
    698       1.3       uch }
    699       1.3       uch 
    700       1.3       uch int
    701       1.6       uch ringbuf_full(struct ring_buf *rb)
    702       1.3       uch {
    703       1.3       uch 	int ret;
    704       1.3       uch 
    705       1.3       uch 	ret = rb->rb_outp == rb->rb_maxblks;
    706       1.3       uch 
    707       1.6       uch 	return (ret);
    708       1.3       uch }
    709       1.3       uch 
    710       1.3       uch void*
    711       1.6       uch ringbuf_producer_get(struct ring_buf *rb)
    712       1.3       uch {
    713       1.3       uch 	u_int32_t ret;
    714       1.3       uch 	int s;
    715       1.3       uch 
    716       1.4       uch 	s = splaudio();
    717       1.3       uch 	ret = ringbuf_full(rb) ? 0 :
    718       1.6       uch 	    rb->rb_buf + rb->rb_inp * rb->rb_blksize;
    719       1.3       uch 	splx(s);
    720       1.3       uch 
    721       1.6       uch 	return (void *)ret;
    722       1.3       uch }
    723       1.3       uch 
    724       1.3       uch void
    725       1.6       uch ringbuf_producer_return(struct ring_buf *rb, size_t cnt)
    726       1.3       uch {
    727       1.3       uch 	int s;
    728       1.3       uch 
    729       1.3       uch 	assert(cnt <= rb->rb_blksize);
    730       1.3       uch 
    731       1.4       uch 	s = splaudio();
    732       1.3       uch 	rb->rb_outp++;
    733       1.3       uch 
    734       1.3       uch 	rb->rb_bufcnt[rb->rb_inp] = cnt;
    735       1.3       uch 	rb->rb_inp = (rb->rb_inp + 1) % rb->rb_maxblks;
    736       1.3       uch 	splx(s);
    737       1.3       uch }
    738       1.3       uch 
    739       1.3       uch void*
    740       1.6       uch ringbuf_consumer_get(struct ring_buf *rb, size_t *cntp)
    741       1.3       uch {
    742       1.3       uch 	u_int32_t p;
    743       1.3       uch 	int idx;
    744       1.3       uch 
    745       1.3       uch 	if (rb->rb_outp == 0)
    746       1.6       uch 		return (0);
    747       1.3       uch 
    748       1.3       uch 	idx = (rb->rb_inp - rb->rb_outp + rb->rb_maxblks) % rb->rb_maxblks;
    749       1.3       uch 
    750       1.3       uch 	p = rb->rb_buf + idx * rb->rb_blksize;
    751       1.3       uch 	*cntp = rb->rb_bufcnt[idx];
    752       1.3       uch 
    753       1.6       uch 	return (void *)p;
    754       1.3       uch }
    755       1.3       uch 
    756       1.3       uch void
    757       1.6       uch ringbuf_consumer_return(struct ring_buf *rb)
    758       1.3       uch {
    759       1.3       uch 
    760       1.3       uch 	if (rb->rb_outp > 0)
    761       1.3       uch 		rb->rb_outp--;
    762       1.2       uch }
    763