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fms.c revision 1.16
      1 /*	$NetBSD: fms.c,v 1.16 2003/01/31 00:07:42 thorpej Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 1999 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Witold J. Wnuk.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  * 3. All advertising materials mentioning features or use of this software
     19  *    must display the following acknowledgement:
     20  *	This product includes software developed by the NetBSD
     21  *	Foundation, Inc. and its contributors.
     22  * 4. Neither the name of The NetBSD Foundation nor the names of its
     23  *    contributors may be used to endorse or promote products derived
     24  *    from this software without specific prior written permission.
     25  *
     26  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     27  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     28  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     29  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     30  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     31  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     32  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     33  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     34  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     35  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     36  * POSSIBILITY OF SUCH DAMAGE.
     37  */
     38 
     39 /*
     40  * Forte Media FM801 Audio Device Driver
     41  */
     42 
     43 #include <sys/cdefs.h>
     44 __KERNEL_RCSID(0, "$NetBSD: fms.c,v 1.16 2003/01/31 00:07:42 thorpej Exp $");
     45 
     46 #include "mpu.h"
     47 
     48 #include <sys/param.h>
     49 #include <sys/systm.h>
     50 #include <sys/kernel.h>
     51 #include <sys/malloc.h>
     52 #include <sys/device.h>
     53 #include <sys/audioio.h>
     54 
     55 #include <uvm/uvm_extern.h>
     56 
     57 #include <machine/bus.h>
     58 #include <machine/cpu.h>
     59 
     60 #include <dev/pci/pcidevs.h>
     61 #include <dev/pci/pcivar.h>
     62 
     63 #include <dev/audio_if.h>
     64 #include <dev/mulaw.h>
     65 #include <dev/auconv.h>
     66 
     67 #include <dev/ic/ac97var.h>
     68 #include <dev/ic/mpuvar.h>
     69 
     70 #include <dev/pci/fmsvar.h>
     71 
     72 
     73 struct fms_dma {
     74 	struct fms_dma *next;
     75 	caddr_t addr;
     76 	size_t size;
     77 	bus_dmamap_t map;
     78 	bus_dma_segment_t seg;
     79 };
     80 
     81 
     82 
     83 int	fms_match __P((struct device *, struct cfdata *, void *));
     84 void	fms_attach __P((struct device *, struct device *, void *));
     85 int	fms_intr __P((void *));
     86 
     87 int	fms_open __P((void *, int));
     88 void	fms_close __P((void *));
     89 int	fms_query_encoding __P((void *, struct audio_encoding *));
     90 int	fms_set_params __P((void *, int, int, struct audio_params *,
     91 			    struct audio_params *));
     92 int	fms_round_blocksize __P((void *, int));
     93 int	fms_halt_output __P((void *));
     94 int	fms_halt_input __P((void *));
     95 int	fms_getdev __P((void *, struct audio_device *));
     96 int	fms_set_port __P((void *, mixer_ctrl_t *));
     97 int	fms_get_port __P((void *, mixer_ctrl_t *));
     98 int	fms_query_devinfo __P((void *, mixer_devinfo_t *));
     99 void	*fms_malloc __P((void *, int, size_t, int, int));
    100 void	fms_free __P((void *, void *, int));
    101 size_t	fms_round_buffersize __P((void *, int, size_t));
    102 paddr_t	fms_mappage __P((void *, void *, off_t, int));
    103 int	fms_get_props __P((void *));
    104 int	fms_trigger_output __P((void *, void *, void *, int, void (*)(void *),
    105 				void *, struct audio_params *));
    106 int	fms_trigger_input __P((void *, void *, void *, int, void (*)(void *),
    107 			       void *, struct audio_params *));
    108 
    109 CFATTACH_DECL(fms, sizeof (struct fms_softc),
    110     fms_match, fms_attach, NULL, NULL);
    111 
    112 struct audio_device fms_device = {
    113 	"Forte Media 801",
    114 	"1.0",
    115 	"fms"
    116 };
    117 
    118 
    119 struct audio_hw_if fms_hw_if = {
    120 	fms_open,
    121 	fms_close,
    122 	NULL,
    123 	fms_query_encoding,
    124 	fms_set_params,
    125 	fms_round_blocksize,
    126 	NULL,
    127 	NULL,
    128 	NULL,
    129 	NULL,
    130 	NULL,
    131 	fms_halt_output,
    132 	fms_halt_input,
    133 	NULL,
    134 	fms_getdev,
    135 	NULL,
    136 	fms_set_port,
    137 	fms_get_port,
    138 	fms_query_devinfo,
    139 	fms_malloc,
    140 	fms_free,
    141 	fms_round_buffersize,
    142 	fms_mappage,
    143 	fms_get_props,
    144 	fms_trigger_output,
    145 	fms_trigger_input,
    146 	NULL,
    147 };
    148 
    149 int	fms_attach_codec __P((void *, struct ac97_codec_if *));
    150 int	fms_read_codec __P((void *, u_int8_t, u_int16_t *));
    151 int	fms_write_codec __P((void *, u_int8_t, u_int16_t));
    152 void	fms_reset_codec __P((void *));
    153 
    154 int	fms_allocmem __P((struct fms_softc *, size_t, size_t,
    155 			  struct fms_dma *));
    156 int	fms_freemem __P((struct fms_softc *, struct fms_dma *));
    157 
    158 #define FM_PCM_VOLUME		0x00
    159 #define FM_FM_VOLUME		0x02
    160 #define FM_I2S_VOLUME		0x04
    161 #define FM_RECORD_SOURCE	0x06
    162 
    163 #define FM_PLAY_CTL		0x08
    164 #define  FM_PLAY_RATE_MASK		0x0f00
    165 #define  FM_PLAY_BUF1_LAST		0x0001
    166 #define  FM_PLAY_BUF2_LAST		0x0002
    167 #define  FM_PLAY_START			0x0020
    168 #define  FM_PLAY_PAUSE			0x0040
    169 #define  FM_PLAY_STOPNOW		0x0080
    170 #define  FM_PLAY_16BIT			0x4000
    171 #define  FM_PLAY_STEREO			0x8000
    172 
    173 #define FM_PLAY_DMALEN		0x0a
    174 #define FM_PLAY_DMABUF1		0x0c
    175 #define FM_PLAY_DMABUF2		0x10
    176 
    177 
    178 #define FM_REC_CTL		0x14
    179 #define  FM_REC_RATE_MASK		0x0f00
    180 #define  FM_REC_BUF1_LAST		0x0001
    181 #define  FM_REC_BUF2_LAST		0x0002
    182 #define  FM_REC_START			0x0020
    183 #define  FM_REC_PAUSE			0x0040
    184 #define  FM_REC_STOPNOW			0x0080
    185 #define  FM_REC_16BIT			0x4000
    186 #define  FM_REC_STEREO			0x8000
    187 
    188 
    189 #define FM_REC_DMALEN		0x16
    190 #define FM_REC_DMABUF1		0x18
    191 #define FM_REC_DMABUF2		0x1c
    192 
    193 #define FM_CODEC_CTL		0x22
    194 #define FM_VOLUME		0x26
    195 #define  FM_VOLUME_MUTE			0x8000
    196 
    197 #define FM_CODEC_CMD		0x2a
    198 #define  FM_CODEC_CMD_READ		0x0080
    199 #define  FM_CODEC_CMD_VALID		0x0100
    200 #define  FM_CODEC_CMD_BUSY		0x0200
    201 
    202 #define FM_CODEC_DATA		0x2c
    203 
    204 #define FM_IO_CTL		0x52
    205 #define FM_CARD_CTL		0x54
    206 
    207 #define FM_INTMASK		0x56
    208 #define  FM_INTMASK_PLAY		0x0001
    209 #define  FM_INTMASK_REC			0x0002
    210 #define  FM_INTMASK_VOL			0x0040
    211 #define  FM_INTMASK_MPU			0x0080
    212 
    213 #define FM_INTSTATUS		0x5a
    214 #define  FM_INTSTATUS_PLAY		0x0100
    215 #define  FM_INTSTATUS_REC		0x0200
    216 #define  FM_INTSTATUS_VOL		0x4000
    217 #define  FM_INTSTATUS_MPU		0x8000
    218 
    219 
    220 
    221 int
    222 fms_match(parent, match, aux)
    223 	struct device *parent;
    224 	struct cfdata *match;
    225 	void *aux;
    226 {
    227 	struct pci_attach_args *pa = (struct pci_attach_args *) aux;
    228 
    229 	if (PCI_VENDOR(pa->pa_id) != PCI_VENDOR_FORTEMEDIA)
    230 		return 0;
    231 	if (PCI_PRODUCT(pa->pa_id) != PCI_PRODUCT_FORTEMEDIA_FM801)
    232 		return 0;
    233 
    234 	return 1;
    235 }
    236 
    237 void
    238 fms_attach(parent, self, aux)
    239 	struct device *parent;
    240 	struct device *self;
    241 	void *aux;
    242 {
    243 	struct pci_attach_args *pa = aux;
    244 	struct fms_softc *sc = (struct fms_softc *) self;
    245 	struct audio_attach_args aa;
    246 	const char *intrstr = NULL;
    247 	pci_chipset_tag_t pc = pa->pa_pc;
    248 	pcitag_t pt = pa->pa_tag;
    249 	pci_intr_handle_t ih;
    250 	int i;
    251 
    252 	u_int16_t k1;
    253 
    254 	aprint_naive(": Audio controller\n");
    255 	aprint_normal(": Forte Media FM-801\n");
    256 
    257 	if (pci_intr_map(pa, &ih)) {
    258 		aprint_error("%s: couldn't map interrupt\n",
    259 		    sc->sc_dev.dv_xname);
    260 		return;
    261 	}
    262 	intrstr = pci_intr_string(pc, ih);
    263 
    264 	sc->sc_ih = pci_intr_establish(pc, ih, IPL_AUDIO, fms_intr, sc);
    265 	if (sc->sc_ih == NULL) {
    266 		aprint_error("%s: couldn't establish interrupt",
    267 		    sc->sc_dev.dv_xname);
    268 		if (intrstr != NULL)
    269 			aprint_normal(" at %s", intrstr);
    270 		aprint_normal("\n");
    271 		return;
    272 	}
    273 
    274 	sc->sc_dmat = pa->pa_dmat;
    275 
    276 	aprint_normal("%s: interrupting at %s\n", sc->sc_dev.dv_xname, intrstr);
    277 
    278 	if (pci_mapreg_map(pa, 0x10, PCI_MAPREG_TYPE_IO, 0, &sc->sc_iot,
    279 			   &sc->sc_ioh, &sc->sc_ioaddr, &sc->sc_iosize)) {
    280 		aprint_error("%s: can't map i/o space\n", sc->sc_dev.dv_xname);
    281 		return;
    282 	}
    283 
    284 	if (bus_space_subregion(sc->sc_iot, sc->sc_ioh, 0x30, 2,
    285 				&sc->sc_mpu_ioh))
    286 		panic("fms_attach: can't get mpu subregion handle");
    287 
    288 	if (bus_space_subregion(sc->sc_iot, sc->sc_ioh, 0x68, 4,
    289 				&sc->sc_opl_ioh))
    290 		panic("fms_attach: can't get opl subregion handle");
    291 
    292 	/* Disable legacy audio (SBPro compatibility) */
    293 	pci_conf_write(pc, pt, 0x40, 0);
    294 
    295 	/* Reset codec and AC'97 */
    296 	bus_space_write_2(sc->sc_iot, sc->sc_ioh, FM_CODEC_CTL, 0x0020);
    297 	delay(2);		/* > 1us according to AC'97 documentation */
    298 	bus_space_write_2(sc->sc_iot, sc->sc_ioh, FM_CODEC_CTL, 0x0000);
    299 	delay(1);		/* > 168.2ns according to AC'97 documentation */
    300 
    301 	/* Set up volume */
    302 	bus_space_write_2(sc->sc_iot, sc->sc_ioh, FM_PCM_VOLUME, 0x0808);
    303 	bus_space_write_2(sc->sc_iot, sc->sc_ioh, FM_FM_VOLUME, 0x0808);
    304 	bus_space_write_2(sc->sc_iot, sc->sc_ioh, FM_I2S_VOLUME, 0x0808);
    305 
    306 	bus_space_write_2(sc->sc_iot, sc->sc_ioh, FM_RECORD_SOURCE, 0x0000);
    307 
    308 	/* Unmask playback, record and mpu interrupts, mask the rest */
    309 	k1 = bus_space_read_2(sc->sc_iot, sc->sc_ioh, FM_INTMASK);
    310 	bus_space_write_2(sc->sc_iot, sc->sc_ioh, FM_INTMASK,
    311 	    (k1 & ~(FM_INTMASK_PLAY | FM_INTMASK_REC | FM_INTMASK_MPU)) |
    312 	     FM_INTMASK_VOL);
    313 	bus_space_write_2(sc->sc_iot, sc->sc_ioh, FM_INTSTATUS,
    314 	    FM_INTSTATUS_PLAY | FM_INTSTATUS_REC | FM_INTSTATUS_MPU |
    315 	    FM_INTSTATUS_VOL);
    316 
    317 	sc->host_if.arg = sc;
    318 	sc->host_if.attach = fms_attach_codec;
    319 	sc->host_if.read = fms_read_codec;
    320 	sc->host_if.write = fms_write_codec;
    321 	sc->host_if.reset = fms_reset_codec;
    322 
    323 	if (ac97_attach(&sc->host_if) != 0)
    324 		return;
    325 
    326 	/* Turn mute off */
    327 	for (i = 0; i < 3; i++) {
    328 		static struct {
    329 			char *class, *device;
    330 		} d[] = {
    331 			{ AudioCoutputs, AudioNmaster },
    332 			{ AudioCinputs, AudioNdac },
    333 			{ AudioCrecord, AudioNvolume }
    334 		};
    335 		struct mixer_ctrl ctl;
    336 
    337 		ctl.type = AUDIO_MIXER_ENUM;
    338 		ctl.un.ord = 0;
    339 		ctl.dev = sc->codec_if->vtbl->get_portnum_by_name(sc->codec_if,
    340 			d[i].class, d[i].device, AudioNmute);
    341 		fms_set_port(sc, &ctl);
    342 	}
    343 
    344 	audio_attach_mi(&fms_hw_if, sc, &sc->sc_dev);
    345 
    346 	aa.type = AUDIODEV_TYPE_OPL;
    347 	aa.hwif = NULL;
    348 	aa.hdl = NULL;
    349 	config_found(&sc->sc_dev, &aa, audioprint);
    350 
    351 	aa.type = AUDIODEV_TYPE_MPU;
    352 	aa.hwif = NULL;
    353 	aa.hdl = NULL;
    354 	sc->sc_mpu_dev = config_found(&sc->sc_dev, &aa, audioprint);
    355 }
    356 
    357 /*
    358  * Each AC-link frame takes 20.8us, data should be ready in next frame,
    359  * we allow more than two.
    360  */
    361 #define TIMO 50
    362 int
    363 fms_read_codec(addr, reg, val)
    364 	void *addr;
    365 	u_int8_t reg;
    366 	u_int16_t *val;
    367 {
    368 	struct fms_softc *sc = addr;
    369 	int i;
    370 
    371 	/* Poll until codec is ready */
    372 	for (i = 0; i < TIMO && bus_space_read_2(sc->sc_iot, sc->sc_ioh,
    373 		 FM_CODEC_CMD) & FM_CODEC_CMD_BUSY; i++)
    374 		delay(1);
    375 	if (i >= TIMO) {
    376 		printf("fms: codec busy\n");
    377 		return 1;
    378 	}
    379 
    380 	/* Write register index, read access */
    381 	bus_space_write_2(sc->sc_iot, sc->sc_ioh, FM_CODEC_CMD,
    382 			  reg | FM_CODEC_CMD_READ);
    383 
    384 	/* Poll until we have valid data */
    385 	for (i = 0; i < TIMO && !(bus_space_read_2(sc->sc_iot, sc->sc_ioh,
    386 		 FM_CODEC_CMD) & FM_CODEC_CMD_VALID); i++)
    387 		delay(1);
    388 	if (i >= TIMO) {
    389 		printf("fms: no data from codec\n");
    390 		return 1;
    391 	}
    392 
    393 	/* Read data */
    394 	*val = bus_space_read_2(sc->sc_iot, sc->sc_ioh, FM_CODEC_DATA);
    395 	return 0;
    396 }
    397 
    398 int
    399 fms_write_codec(addr, reg, val)
    400 	void *addr;
    401 	u_int8_t reg;
    402 	u_int16_t val;
    403 {
    404 	struct fms_softc *sc = addr;
    405 	int i;
    406 
    407 	/* Poll until codec is ready */
    408 	for (i = 0; i < TIMO && bus_space_read_2(sc->sc_iot, sc->sc_ioh,
    409 		 FM_CODEC_CMD) & FM_CODEC_CMD_BUSY; i++)
    410 		delay(1);
    411 	if (i >= TIMO) {
    412 		printf("fms: codec busy\n");
    413 		return 1;
    414 	}
    415 
    416 	/* Write data */
    417 	bus_space_write_2(sc->sc_iot, sc->sc_ioh, FM_CODEC_DATA, val);
    418 	/* Write index register, write access */
    419 	bus_space_write_2(sc->sc_iot, sc->sc_ioh, FM_CODEC_CMD, reg);
    420 	return 0;
    421 }
    422 #undef TIMO
    423 
    424 int
    425 fms_attach_codec(addr, cif)
    426 	void *addr;
    427 	struct ac97_codec_if *cif;
    428 {
    429 	struct fms_softc *sc = addr;
    430 
    431 	sc->codec_if = cif;
    432 	return 0;
    433 }
    434 
    435 /* Cold Reset */
    436 void
    437 fms_reset_codec(addr)
    438 	void *addr;
    439 {
    440 	struct fms_softc *sc = addr;
    441 	bus_space_write_2(sc->sc_iot, sc->sc_ioh, FM_CODEC_CTL, 0x0020);
    442 	delay(2);
    443 	bus_space_write_2(sc->sc_iot, sc->sc_ioh, FM_CODEC_CTL, 0x0000);
    444 	delay(1);
    445 }
    446 
    447 int
    448 fms_intr(arg)
    449 	void *arg;
    450 {
    451 	struct fms_softc *sc = arg;
    452 	u_int16_t istat;
    453 
    454 	istat = bus_space_read_2(sc->sc_iot, sc->sc_ioh, FM_INTSTATUS);
    455 
    456 	if (istat & FM_INTSTATUS_PLAY) {
    457 		if ((sc->sc_play_nextblk += sc->sc_play_blksize) >=
    458 		     sc->sc_play_end)
    459 			sc->sc_play_nextblk = sc->sc_play_start;
    460 
    461 		bus_space_write_4(sc->sc_iot, sc->sc_ioh,
    462 		    sc->sc_play_flip++ & 1 ?
    463 		    FM_PLAY_DMABUF2 : FM_PLAY_DMABUF1, sc->sc_play_nextblk);
    464 
    465 		if (sc->sc_pintr)
    466 			sc->sc_pintr(sc->sc_parg);
    467 		else
    468 			printf("unexpected play intr\n");
    469 	}
    470 
    471 	if (istat & FM_INTSTATUS_REC) {
    472 		if ((sc->sc_rec_nextblk += sc->sc_rec_blksize) >=
    473 		     sc->sc_rec_end)
    474 			sc->sc_rec_nextblk = sc->sc_rec_start;
    475 
    476 		bus_space_write_4(sc->sc_iot, sc->sc_ioh,
    477 		    sc->sc_rec_flip++ & 1 ?
    478 		    FM_REC_DMABUF2 : FM_REC_DMABUF1, sc->sc_rec_nextblk);
    479 
    480 		if (sc->sc_rintr)
    481 			sc->sc_rintr(sc->sc_rarg);
    482 		else
    483 			printf("unexpected rec intr\n");
    484 	}
    485 
    486 #if NMPU > 0
    487 	if (istat & FM_INTSTATUS_MPU)
    488 		mpu_intr(sc->sc_mpu_dev);
    489 #endif
    490 
    491 	bus_space_write_2(sc->sc_iot, sc->sc_ioh, FM_INTSTATUS,
    492 			  istat & (FM_INTSTATUS_PLAY | FM_INTSTATUS_REC));
    493 
    494 	return 1;
    495 }
    496 
    497 int
    498 fms_open(addr, flags)
    499 	void *addr;
    500 	int flags;
    501 {
    502 	/* UNUSED struct fms_softc *sc = addr;*/
    503 
    504 	return 0;
    505 }
    506 
    507 void
    508 fms_close(addr)
    509 	void *addr;
    510 {
    511 	/* UNUSED struct fms_softc *sc = addr;*/
    512 }
    513 
    514 int
    515 fms_query_encoding(addr, fp)
    516 	void *addr;
    517 	struct audio_encoding *fp;
    518 {
    519 
    520 	switch (fp->index) {
    521 	case 0:
    522 		strcpy(fp->name, AudioEmulaw);
    523 		fp->encoding = AUDIO_ENCODING_ULAW;
    524 		fp->precision = 8;
    525 		fp->flags = AUDIO_ENCODINGFLAG_EMULATED;
    526 		return 0;
    527 	case 1:
    528 		strcpy(fp->name, AudioEslinear_le);
    529 		fp->encoding = AUDIO_ENCODING_SLINEAR_LE;
    530 		fp->precision = 16;
    531 		fp->flags = 0;
    532 		return 0;
    533 	case 2:
    534 		strcpy(fp->name, AudioEulinear);
    535 		fp->encoding = AUDIO_ENCODING_ULINEAR;
    536 		fp->precision = 8;
    537 		fp->flags = 0;
    538 		return 0;
    539 	case 3:
    540 		strcpy(fp->name, AudioEalaw);
    541 		fp->encoding = AUDIO_ENCODING_ALAW;
    542 		fp->precision = 8;
    543 		fp->flags = AUDIO_ENCODINGFLAG_EMULATED;
    544 		return 0;
    545 	case 4:
    546 		strcpy(fp->name, AudioEulinear_le);
    547 		fp->encoding = AUDIO_ENCODING_ULINEAR_LE;
    548 		fp->precision = 16;
    549 		fp->flags = AUDIO_ENCODINGFLAG_EMULATED;
    550 		return 0;
    551 	case 5:
    552 		strcpy(fp->name, AudioEslinear);
    553 		fp->encoding = AUDIO_ENCODING_SLINEAR;
    554 		fp->precision = 8;
    555 		fp->flags = AUDIO_ENCODINGFLAG_EMULATED;
    556 		return 0;
    557 	case 6:
    558 		strcpy(fp->name, AudioEulinear_be);
    559 		fp->encoding = AUDIO_ENCODING_ULINEAR_BE;
    560 		fp->precision = 16;
    561 		fp->flags = AUDIO_ENCODINGFLAG_EMULATED;
    562 		return 0;
    563 	case 7:
    564 		strcpy(fp->name, AudioEslinear_be);
    565 		fp->encoding = AUDIO_ENCODING_SLINEAR_BE;
    566 		fp->precision = 16;
    567 		fp->flags = AUDIO_ENCODINGFLAG_EMULATED;
    568 		return 0;
    569 	default:
    570 		return EINVAL;
    571 	}
    572 }
    573 
    574 /*
    575  * Range below -limit- is set to -rate-
    576  * What a pity FM801 does not have 24000
    577  * 24000 -> 22050 sounds rather poor
    578  */
    579 struct {
    580 	int limit;
    581 	int rate;
    582 } fms_rates[11] = {
    583 	{  6600,  5500 },
    584 	{  8750,  8000 },
    585 	{ 10250,  9600 },
    586 	{ 13200, 11025 },
    587 	{ 17500, 16000 },
    588 	{ 20500, 19200 },
    589 	{ 26500, 22050 },
    590 	{ 35000, 32000 },
    591 	{ 41000, 38400 },
    592 	{ 46000, 44100 },
    593 	{ 48000, 48000 },
    594 	/* anything above -> 48000 */
    595 };
    596 
    597 int
    598 fms_set_params(addr, setmode, usemode, play, rec)
    599 	void *addr;
    600 	int setmode, usemode;
    601 	struct audio_params *play, *rec;
    602 {
    603 	struct fms_softc *sc = addr;
    604 	int i;
    605 
    606 	if (setmode & AUMODE_PLAY) {
    607 		play->factor = 1;
    608 		play->sw_code = 0;
    609 		switch(play->encoding) {
    610 		case AUDIO_ENCODING_ULAW:
    611 			play->factor = 2;
    612 			play->sw_code = mulaw_to_slinear16_le;
    613 			break;
    614 		case AUDIO_ENCODING_SLINEAR_LE:
    615 			if (play->precision == 8)
    616 				play->sw_code = change_sign8;
    617 			break;
    618 		case AUDIO_ENCODING_ULINEAR_LE:
    619 			if (play->precision == 16)
    620 				play->sw_code = change_sign16_le;
    621 			break;
    622 		case AUDIO_ENCODING_ALAW:
    623 			play->factor = 2;
    624 			play->sw_code = alaw_to_slinear16_le;
    625 			break;
    626 		case AUDIO_ENCODING_SLINEAR_BE:
    627 			if (play->precision == 16)
    628 				play->sw_code = swap_bytes;
    629 			else
    630 				play->sw_code = change_sign8;
    631 			break;
    632 		case AUDIO_ENCODING_ULINEAR_BE:
    633 			if (play->precision == 16)
    634 				play->sw_code = change_sign16_swap_bytes_le;
    635 			break;
    636 		default:
    637 			return EINVAL;
    638 		}
    639 		for (i = 0; i < 10 && play->sample_rate > fms_rates[i].limit;
    640 		     i++)
    641 			;
    642 		play->sample_rate = fms_rates[i].rate;
    643 		sc->sc_play_reg = (play->channels == 2 ? FM_PLAY_STEREO : 0) |
    644 		    (play->precision * play->factor == 16 ? FM_PLAY_16BIT : 0) |
    645 		    (i << 8);
    646 	}
    647 
    648 	if (setmode & AUMODE_RECORD) {
    649 
    650 		rec->factor = 1;
    651 		rec->sw_code = 0;
    652 		switch(rec->encoding) {
    653 		case AUDIO_ENCODING_ULAW:
    654 			rec->sw_code = ulinear8_to_mulaw;
    655 			break;
    656 		case AUDIO_ENCODING_SLINEAR_LE:
    657 			if (rec->precision == 8)
    658 				rec->sw_code = change_sign8;
    659 			break;
    660 		case AUDIO_ENCODING_ULINEAR_LE:
    661 			if (rec->precision == 16)
    662 				rec->sw_code = change_sign16_le;
    663 			break;
    664 		case AUDIO_ENCODING_ALAW:
    665 			rec->sw_code = ulinear8_to_alaw;
    666 			break;
    667 		case AUDIO_ENCODING_SLINEAR_BE:
    668 			if (play->precision == 16)
    669 				play->sw_code = swap_bytes;
    670 			else
    671 				play->sw_code = change_sign8;
    672 			break;
    673 		case AUDIO_ENCODING_ULINEAR_BE:
    674 			if (play->precision == 16)
    675 				play->sw_code = swap_bytes_change_sign16_le;
    676 			break;
    677 		default:
    678 			return EINVAL;
    679 		}
    680 		for (i = 0; i < 10 && rec->sample_rate > fms_rates[i].limit;
    681 		     i++)
    682 			;
    683 		rec->sample_rate = fms_rates[i].rate;
    684 		sc->sc_rec_reg =
    685 		    (rec->channels == 2 ? FM_REC_STEREO : 0) |
    686 		    (rec->precision * rec->factor == 16 ? FM_REC_16BIT : 0) |
    687 		    (i << 8);
    688 	}
    689 
    690 	return 0;
    691 }
    692 
    693 int
    694 fms_round_blocksize(addr, blk)
    695 	void *addr;
    696 	int blk;
    697 {
    698 	return blk & ~0xf;
    699 }
    700 
    701 int
    702 fms_halt_output(addr)
    703 	void *addr;
    704 {
    705 	struct fms_softc *sc = addr;
    706 	u_int16_t k1;
    707 
    708 	k1 = bus_space_read_2(sc->sc_iot, sc->sc_ioh, FM_PLAY_CTL);
    709 	bus_space_write_2(sc->sc_iot, sc->sc_ioh, FM_PLAY_CTL,
    710 			  (k1 & ~(FM_PLAY_STOPNOW | FM_PLAY_START)) |
    711 			  FM_PLAY_BUF1_LAST | FM_PLAY_BUF2_LAST);
    712 
    713 	return 0;
    714 }
    715 
    716 int
    717 fms_halt_input(addr)
    718 	void *addr;
    719 {
    720 	struct fms_softc *sc = addr;
    721 	u_int16_t k1;
    722 
    723 	k1 = bus_space_read_2(sc->sc_iot, sc->sc_ioh, FM_REC_CTL);
    724 	bus_space_write_2(sc->sc_iot, sc->sc_ioh, FM_REC_CTL,
    725 			  (k1 & ~(FM_REC_STOPNOW | FM_REC_START)) |
    726 			  FM_REC_BUF1_LAST | FM_REC_BUF2_LAST);
    727 
    728 	return 0;
    729 }
    730 
    731 int
    732 fms_getdev(addr, retp)
    733 	void *addr;
    734 	struct audio_device *retp;
    735 {
    736 	*retp = fms_device;
    737 	return 0;
    738 }
    739 
    740 int
    741 fms_set_port(addr, cp)
    742 	void *addr;
    743 	mixer_ctrl_t *cp;
    744 {
    745 	struct fms_softc *sc = addr;
    746 
    747 	return (sc->codec_if->vtbl->mixer_set_port(sc->codec_if, cp));
    748 }
    749 
    750 int
    751 fms_get_port(addr, cp)
    752 	void *addr;
    753 	mixer_ctrl_t *cp;
    754 {
    755 	struct fms_softc *sc = addr;
    756 
    757 	return (sc->codec_if->vtbl->mixer_get_port(sc->codec_if, cp));
    758 }
    759 
    760 void *
    761 fms_malloc(addr, direction, size, pool, flags)
    762 	void *addr;
    763 	int direction;
    764 	size_t size;
    765 	int pool, flags;
    766 {
    767 	struct fms_softc *sc = addr;
    768 	struct fms_dma *p;
    769 	int error;
    770 	int rseg;
    771 
    772 	p = malloc(sizeof(*p), pool, flags);
    773 	if (!p)
    774 		return 0;
    775 
    776 	p->size = size;
    777 	if ((error = bus_dmamem_alloc(sc->sc_dmat, size, PAGE_SIZE, 0, &p->seg,
    778 				      1, &rseg, BUS_DMA_NOWAIT)) != 0) {
    779 		printf("%s: unable to allocate dma, error = %d\n",
    780 		       sc->sc_dev.dv_xname, error);
    781 		goto fail_alloc;
    782 	}
    783 
    784 	if ((error = bus_dmamem_map(sc->sc_dmat, &p->seg, rseg, size, &p->addr,
    785 				    BUS_DMA_NOWAIT | BUS_DMA_COHERENT)) != 0) {
    786 		printf("%s: unable to map dma, error = %d\n",
    787 		       sc->sc_dev.dv_xname, error);
    788 		goto fail_map;
    789 	}
    790 
    791 	if ((error = bus_dmamap_create(sc->sc_dmat, size, 1, size, 0,
    792 				       BUS_DMA_NOWAIT, &p->map)) != 0) {
    793 		printf("%s: unable to create dma map, error = %d\n",
    794 		       sc->sc_dev.dv_xname, error);
    795 		goto fail_create;
    796 	}
    797 
    798 	if ((error = bus_dmamap_load(sc->sc_dmat, p->map, p->addr, size, NULL,
    799 				     BUS_DMA_NOWAIT)) != 0) {
    800 		printf("%s: unable to load dma map, error = %d\n",
    801 		       sc->sc_dev.dv_xname, error);
    802 		goto fail_load;
    803 	}
    804 
    805 	p->next = sc->sc_dmas;
    806 	sc->sc_dmas = p;
    807 
    808 	return p->addr;
    809 
    810 
    811 fail_load:
    812 	bus_dmamap_destroy(sc->sc_dmat, p->map);
    813 fail_create:
    814 	bus_dmamem_unmap(sc->sc_dmat, p->addr, size);
    815 fail_map:
    816 	bus_dmamem_free(sc->sc_dmat, &p->seg, 1);
    817 fail_alloc:
    818 	free(p, pool);
    819 	return 0;
    820 }
    821 
    822 void
    823 fms_free(addr, ptr, pool)
    824 	void *addr;
    825 	void *ptr;
    826 	int pool;
    827 {
    828 	struct fms_softc *sc = addr;
    829 	struct fms_dma **pp, *p;
    830 
    831 	for (pp = &(sc->sc_dmas); (p = *pp) != NULL; pp = &p->next)
    832 		if (p->addr == ptr) {
    833 			bus_dmamap_unload(sc->sc_dmat, p->map);
    834 			bus_dmamap_destroy(sc->sc_dmat, p->map);
    835 			bus_dmamem_unmap(sc->sc_dmat, p->addr, p->size);
    836 			bus_dmamem_free(sc->sc_dmat, &p->seg, 1);
    837 
    838 			*pp = p->next;
    839 			free(p, pool);
    840 			return;
    841 		}
    842 
    843 	panic("fms_free: trying to free unallocated memory");
    844 }
    845 
    846 size_t
    847 fms_round_buffersize(addr, direction, size)
    848 	void *addr;
    849 	int direction;
    850 	size_t size;
    851 {
    852 	return size;
    853 }
    854 
    855 paddr_t
    856 fms_mappage(addr, mem, off, prot)
    857 	void *addr;
    858 	void *mem;
    859 	off_t off;
    860 	int prot;
    861 {
    862 	struct fms_softc *sc = addr;
    863 	struct fms_dma *p;
    864 
    865 	if (off < 0)
    866 		return -1;
    867 
    868 	for (p = sc->sc_dmas; p && p->addr != mem; p = p->next)
    869 		;
    870 	if (!p)
    871 		return -1;
    872 
    873 	return bus_dmamem_mmap(sc->sc_dmat, &p->seg, 1, off, prot,
    874 			       BUS_DMA_WAITOK);
    875 }
    876 
    877 int
    878 fms_get_props(addr)
    879 	void *addr;
    880 {
    881 	return AUDIO_PROP_MMAP | AUDIO_PROP_INDEPENDENT |
    882 	       AUDIO_PROP_FULLDUPLEX;
    883 }
    884 
    885 int
    886 fms_query_devinfo(addr, dip)
    887 	void *addr;
    888 	mixer_devinfo_t *dip;
    889 {
    890 	struct fms_softc *sc = addr;
    891 
    892 	return (sc->codec_if->vtbl->query_devinfo(sc->codec_if, dip));
    893 }
    894 
    895 int
    896 fms_trigger_output(addr, start, end, blksize, intr, arg, param)
    897 	void *addr;
    898 	void *start, *end;
    899 	int blksize;
    900 	void (*intr) __P((void *));
    901 	void *arg;
    902 	struct audio_params *param;
    903 {
    904 	struct fms_softc *sc = addr;
    905 	struct fms_dma *p;
    906 
    907 	sc->sc_pintr = intr;
    908 	sc->sc_parg = arg;
    909 
    910 	for (p = sc->sc_dmas; p && p->addr != start; p = p->next)
    911 		;
    912 
    913 	if (!p)
    914 		panic("fms_trigger_output: request with bad start "
    915 		      "address (%p)", start);
    916 
    917 	sc->sc_play_start = p->map->dm_segs[0].ds_addr;
    918 	sc->sc_play_end = sc->sc_play_start + ((char *)end - (char *)start);
    919 	sc->sc_play_blksize = blksize;
    920 	sc->sc_play_nextblk = sc->sc_play_start + sc->sc_play_blksize;
    921 	sc->sc_play_flip = 0;
    922 	bus_space_write_2(sc->sc_iot, sc->sc_ioh, FM_PLAY_DMALEN, blksize - 1);
    923 	bus_space_write_4(sc->sc_iot, sc->sc_ioh, FM_PLAY_DMABUF1,
    924 			  sc->sc_play_start);
    925 	bus_space_write_4(sc->sc_iot, sc->sc_ioh, FM_PLAY_DMABUF2,
    926 			  sc->sc_play_nextblk);
    927 	bus_space_write_2(sc->sc_iot, sc->sc_ioh, FM_PLAY_CTL,
    928 			  FM_PLAY_START | FM_PLAY_STOPNOW | sc->sc_play_reg);
    929 	return 0;
    930 }
    931 
    932 
    933 int
    934 fms_trigger_input(addr, start, end, blksize, intr, arg, param)
    935 	void *addr;
    936 	void *start, *end;
    937 	int blksize;
    938 	void (*intr) __P((void *));
    939 	void *arg;
    940 	struct audio_params *param;
    941 {
    942 	struct fms_softc *sc = addr;
    943 	struct fms_dma *p;
    944 
    945 	sc->sc_rintr = intr;
    946 	sc->sc_rarg = arg;
    947 
    948 	for (p = sc->sc_dmas; p && p->addr != start; p = p->next)
    949 		;
    950 
    951 	if (!p)
    952 		panic("fms_trigger_input: request with bad start "
    953 		      "address (%p)", start);
    954 
    955 	sc->sc_rec_start = p->map->dm_segs[0].ds_addr;
    956 	sc->sc_rec_end = sc->sc_rec_start + ((char *)end - (char *)start);
    957 	sc->sc_rec_blksize = blksize;
    958 	sc->sc_rec_nextblk = sc->sc_rec_start + sc->sc_rec_blksize;
    959 	sc->sc_rec_flip = 0;
    960 	bus_space_write_2(sc->sc_iot, sc->sc_ioh, FM_REC_DMALEN, blksize - 1);
    961 	bus_space_write_4(sc->sc_iot, sc->sc_ioh, FM_REC_DMABUF1,
    962 			  sc->sc_rec_start);
    963 	bus_space_write_4(sc->sc_iot, sc->sc_ioh, FM_REC_DMABUF2,
    964 			  sc->sc_rec_nextblk);
    965 	bus_space_write_2(sc->sc_iot, sc->sc_ioh, FM_REC_CTL,
    966 			  FM_REC_START | FM_REC_STOPNOW | sc->sc_rec_reg);
    967 	return 0;
    968 }
    969 
    970 
    971