621 lines
17 KiB
C
621 lines
17 KiB
C
/*
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* Copyright (c) 1999 Cameron Grant <gandalf@vilnya.demon.co.uk>
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* Copyright Luigi Rizzo, 1997,1998
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* Copyright by Hannu Savolainen 1994, 1995
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* All rights reserved.
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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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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#include <dev/sound/pcm/sound.h>
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#include <dev/sound/isa/ad1816.h>
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struct ad1816_info;
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struct ad1816_chinfo {
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struct ad1816_info *parent;
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pcm_channel *channel;
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snd_dbuf *buffer;
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int dir;
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};
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struct ad1816_info {
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struct resource *io_base; /* primary I/O address for the board */
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int io_rid;
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struct resource *irq;
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int irq_rid;
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struct resource *drq1; /* play */
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int drq1_rid;
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struct resource *drq2; /* rec */
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int drq2_rid;
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bus_dma_tag_t parent_dmat;
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struct ad1816_chinfo pch, rch;
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};
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static driver_intr_t ad1816_intr;
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static int ad1816_probe(device_t dev);
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static int ad1816_attach(device_t dev);
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/* IO primitives */
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static int ad1816_wait_init(struct ad1816_info *ad1816, int x);
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static u_short ad1816_read(struct ad1816_info *ad1816, u_int reg);
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static void ad1816_write(struct ad1816_info *ad1816, u_int reg, u_short data);
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static int ad1816mix_init(snd_mixer *m);
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static int ad1816mix_set(snd_mixer *m, unsigned dev, unsigned left, unsigned right);
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static int ad1816mix_setrecsrc(snd_mixer *m, u_int32_t src);
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static snd_mixer ad1816_mixer = {
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"ad1816 mixer",
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ad1816mix_init,
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ad1816mix_set,
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ad1816mix_setrecsrc,
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};
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static devclass_t pcm_devclass;
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/* channel interface */
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static void *ad1816chan_init(void *devinfo, snd_dbuf *b, pcm_channel *c, int dir);
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static int ad1816chan_setdir(void *data, int dir);
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static int ad1816chan_setformat(void *data, u_int32_t format);
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static int ad1816chan_setspeed(void *data, u_int32_t speed);
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static int ad1816chan_setblocksize(void *data, u_int32_t blocksize);
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static int ad1816chan_trigger(void *data, int go);
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static int ad1816chan_getptr(void *data);
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static pcmchan_caps *ad1816chan_getcaps(void *data);
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static pcmchan_caps ad1816_caps = {
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4000, 55200,
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AFMT_STEREO | AFMT_U8 | AFMT_S16_LE | AFMT_MU_LAW | AFMT_A_LAW,
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AFMT_STEREO | AFMT_S16_LE
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};
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static pcm_channel ad1816_chantemplate = {
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ad1816chan_init,
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ad1816chan_setdir,
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ad1816chan_setformat,
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ad1816chan_setspeed,
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ad1816chan_setblocksize,
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ad1816chan_trigger,
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ad1816chan_getptr,
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ad1816chan_getcaps,
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};
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#define AD1816_MUTE 31 /* value for mute */
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static int
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port_rd(struct resource *port, int off)
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{
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if (port)
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return bus_space_read_1(rman_get_bustag(port),
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rman_get_bushandle(port),
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off);
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else
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return -1;
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}
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static void
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port_wr(struct resource *port, int off, u_int8_t data)
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{
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if (port)
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return bus_space_write_1(rman_get_bustag(port),
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rman_get_bushandle(port),
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off, data);
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}
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static int
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io_rd(struct ad1816_info *ad1816, int reg)
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{
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return port_rd(ad1816->io_base, reg);
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}
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static void
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io_wr(struct ad1816_info *ad1816, int reg, u_int8_t data)
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{
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return port_wr(ad1816->io_base, reg, data);
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}
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static void
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ad1816_intr(void *arg)
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{
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struct ad1816_info *ad1816 = (struct ad1816_info *)arg;
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unsigned char c, served = 0;
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/* get interupt status */
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c = io_rd(ad1816, AD1816_INT);
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/* check for stray interupts */
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if (c & ~(AD1816_INTRCI | AD1816_INTRPI)) {
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printf("pcm: stray int (%x)\n", c);
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c &= AD1816_INTRCI | AD1816_INTRPI;
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}
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/* check for capture interupt */
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if (ad1816->rch.buffer->dl && (c & AD1816_INTRCI)) {
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chn_intr(ad1816->rch.channel);
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served |= AD1816_INTRCI; /* cp served */
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}
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/* check for playback interupt */
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if (ad1816->pch.buffer->dl && (c & AD1816_INTRPI)) {
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chn_intr(ad1816->pch.channel);
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served |= AD1816_INTRPI; /* pb served */
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}
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if (served == 0) {
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/* this probably means this is not a (working) ad1816 chip, */
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/* or an error in dma handling */
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printf("pcm: int without reason (%x)\n", c);
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c = 0;
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} else c &= ~served;
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io_wr(ad1816, AD1816_INT, c);
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c = io_rd(ad1816, AD1816_INT);
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if (c != 0) printf("pcm: int clear failed (%x)\n", c);
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}
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static int
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ad1816_wait_init(struct ad1816_info *ad1816, int x)
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{
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int n = 0; /* to shut up the compiler... */
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for (; x--;)
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if ((n = (io_rd(ad1816, AD1816_ALE) & AD1816_BUSY)) == 0) DELAY(10);
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else return n;
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printf("ad1816_wait_init failed 0x%02x.\n", n);
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return -1;
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}
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static unsigned short
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ad1816_read(struct ad1816_info *ad1816, unsigned int reg)
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{
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int flags;
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u_short x = 0;
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/* we don't want to be blocked here */
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flags = spltty();
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if (ad1816_wait_init(ad1816, 100) == -1) return 0;
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io_wr(ad1816, AD1816_ALE, 0);
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io_wr(ad1816, AD1816_ALE, (reg & AD1816_ALEMASK));
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if (ad1816_wait_init(ad1816, 100) == -1) return 0;
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x = (io_rd(ad1816, AD1816_HIGH) << 8) | io_rd(ad1816, AD1816_LOW);
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splx(flags);
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return x;
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}
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static void
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ad1816_write(struct ad1816_info *ad1816, unsigned int reg, unsigned short data)
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{
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int flags;
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flags = spltty();
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if (ad1816_wait_init(ad1816, 100) == -1) return;
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io_wr(ad1816, AD1816_ALE, (reg & AD1816_ALEMASK));
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io_wr(ad1816, AD1816_LOW, (data & 0x000000ff));
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io_wr(ad1816, AD1816_HIGH, (data & 0x0000ff00) >> 8);
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splx(flags);
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}
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static int
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ad1816mix_init(snd_mixer *m)
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{
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mix_setdevs(m, AD1816_MIXER_DEVICES);
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mix_setrecdevs(m, AD1816_REC_DEVICES);
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return 0;
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}
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static int
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ad1816mix_set(snd_mixer *m, unsigned dev, unsigned left, unsigned right)
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{
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struct ad1816_info *ad1816 = mix_getdevinfo(m);
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u_short reg = 0;
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/* Scale volumes */
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left = AD1816_MUTE - (AD1816_MUTE * left) / 100;
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right = AD1816_MUTE - (AD1816_MUTE * right) / 100;
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reg = (left << 8) | right;
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/* do channel selective muting if volume is zero */
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if (left == AD1816_MUTE) reg |= 0x8000;
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if (right == AD1816_MUTE) reg |= 0x0080;
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switch (dev) {
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case SOUND_MIXER_VOLUME: /* Register 14 master volume */
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ad1816_write(ad1816, 14, reg);
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break;
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case SOUND_MIXER_CD: /* Register 15 cd */
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case SOUND_MIXER_LINE1:
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ad1816_write(ad1816, 15, reg);
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break;
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case SOUND_MIXER_SYNTH: /* Register 16 synth */
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ad1816_write(ad1816, 16, reg);
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break;
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case SOUND_MIXER_PCM: /* Register 4 pcm */
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ad1816_write(ad1816, 4, reg);
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break;
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case SOUND_MIXER_LINE:
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case SOUND_MIXER_LINE3: /* Register 18 line in */
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ad1816_write(ad1816, 18, reg);
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break;
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case SOUND_MIXER_MIC: /* Register 19 mic volume */
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ad1816_write(ad1816, 19, reg & ~0xff); /* mic is mono */
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break;
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case SOUND_MIXER_IGAIN:
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/* and now to something completely different ... */
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ad1816_write(ad1816, 20, ((ad1816_read(ad1816, 20) & ~0x0f0f)
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| (((AD1816_MUTE - left) / 2) << 8) /* four bits of adc gain */
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| ((AD1816_MUTE - right) / 2)));
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break;
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default:
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printf("ad1816_mixer_set(): unknown device.\n");
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break;
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}
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left = ((AD1816_MUTE - left) * 100) / AD1816_MUTE;
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right = ((AD1816_MUTE - right) * 100) / AD1816_MUTE;
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return left | (right << 8);
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}
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static int
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ad1816mix_setrecsrc(snd_mixer *m, u_int32_t src)
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{
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struct ad1816_info *ad1816 = mix_getdevinfo(m);
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int dev;
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switch (src) {
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case SOUND_MASK_LINE:
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case SOUND_MASK_LINE3:
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dev = 0x00;
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break;
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case SOUND_MASK_CD:
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case SOUND_MASK_LINE1:
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dev = 0x20;
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break;
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case SOUND_MASK_MIC:
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default:
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dev = 0x50;
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src = SOUND_MASK_MIC;
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}
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dev |= dev << 8;
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ad1816_write(ad1816, 20, (ad1816_read(ad1816, 20) & ~0x7070) | dev);
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return src;
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}
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/* channel interface */
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static void *
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ad1816chan_init(void *devinfo, snd_dbuf *b, pcm_channel *c, int dir)
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{
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struct ad1816_info *ad1816 = devinfo;
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struct ad1816_chinfo *ch = (dir == PCMDIR_PLAY)? &ad1816->pch : &ad1816->rch;
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ch->parent = ad1816;
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ch->channel = c;
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ch->buffer = b;
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ch->buffer->bufsize = DSP_BUFFSIZE;
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if (chn_allocbuf(ch->buffer, ad1816->parent_dmat) == -1) return NULL;
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return ch;
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}
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static int
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ad1816chan_setdir(void *data, int dir)
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{
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struct ad1816_chinfo *ch = data;
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struct ad1816_info *ad1816 = ch->parent;
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ch->buffer->chan = rman_get_start((dir == PCMDIR_PLAY)?
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ad1816->drq1 : ad1816->drq2);
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ch->dir = dir;
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return 0;
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}
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static int
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ad1816chan_setformat(void *data, u_int32_t format)
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{
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struct ad1816_chinfo *ch = data;
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struct ad1816_info *ad1816 = ch->parent;
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int fmt = AD1816_U8, reg;
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if (ch->dir == PCMDIR_PLAY) {
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reg = AD1816_PLAY;
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ad1816_write(ad1816, 8, 0x0000); /* reset base and current counter */
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ad1816_write(ad1816, 9, 0x0000); /* for playback and capture */
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} else {
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reg = AD1816_CAPT;
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ad1816_write(ad1816, 10, 0x0000);
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ad1816_write(ad1816, 11, 0x0000);
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}
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switch (format & ~AFMT_STEREO) {
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case AFMT_A_LAW:
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fmt = AD1816_ALAW;
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break;
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case AFMT_MU_LAW:
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fmt = AD1816_MULAW;
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break;
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case AFMT_S16_LE:
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fmt = AD1816_S16LE;
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break;
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case AFMT_S16_BE:
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fmt = AD1816_S16BE;
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break;
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case AFMT_U8:
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fmt = AD1816_U8;
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break;
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}
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if (format & AFMT_STEREO) fmt |= AD1816_STEREO;
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io_wr(ad1816, reg, fmt);
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return format;
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}
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static int
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ad1816chan_setspeed(void *data, u_int32_t speed)
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{
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struct ad1816_chinfo *ch = data;
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struct ad1816_info *ad1816 = ch->parent;
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RANGE(speed, 4000, 55200);
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ad1816_write(ad1816, (ch->dir == PCMDIR_PLAY)? 2 : 3, speed);
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return speed;
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}
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static int
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ad1816chan_setblocksize(void *data, u_int32_t blocksize)
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{
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return blocksize;
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}
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static int
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ad1816chan_trigger(void *data, int go)
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{
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struct ad1816_chinfo *ch = data;
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struct ad1816_info *ad1816 = ch->parent;
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int wr, reg;
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if (go == PCMTRIG_EMLDMAWR) return 0;
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buf_isadma(ch->buffer, go);
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wr = (ch->dir == PCMDIR_PLAY);
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reg = wr? AD1816_PLAY : AD1816_CAPT;
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switch (go) {
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case PCMTRIG_START:
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/* start only if not already running */
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if (!(io_rd(ad1816, reg) & AD1816_ENABLE)) {
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int cnt = ((ch->buffer->dl) >> 2) - 1;
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ad1816_write(ad1816, wr? 8 : 10, cnt); /* count */
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ad1816_write(ad1816, wr? 9 : 11, 0); /* reset cur cnt */
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ad1816_write(ad1816, 1, ad1816_read(ad1816, 1) |
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(wr? 0x8000 : 0x4000)); /* enable int */
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/* enable playback */
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io_wr(ad1816, reg, io_rd(ad1816, reg) | AD1816_ENABLE);
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if (!(io_rd(ad1816, reg) & AD1816_ENABLE))
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printf("ad1816: failed to start %s DMA!\n",
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wr? "play" : "rec");
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}
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break;
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case PCMTRIG_STOP:
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case PCMTRIG_ABORT: /* XXX check this... */
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/* we don't test here if it is running... */
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if (wr) {
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ad1816_write(ad1816, 1, ad1816_read(ad1816, 1) &
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~(wr? 0x8000 : 0x4000));
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/* disable int */
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io_wr(ad1816, reg, io_rd(ad1816, reg) & ~AD1816_ENABLE);
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/* disable playback */
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if (io_rd(ad1816, reg) & AD1816_ENABLE)
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printf("ad1816: failed to stop %s DMA!\n",
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wr? "play" : "rec");
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ad1816_write(ad1816, wr? 8 : 10, 0); /* reset base cnt */
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ad1816_write(ad1816, wr? 9 : 11, 0); /* reset cur cnt */
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}
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break;
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}
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return 0;
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}
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static int
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ad1816chan_getptr(void *data)
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{
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struct ad1816_chinfo *ch = data;
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return buf_isadmaptr(ch->buffer);
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}
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static pcmchan_caps *
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ad1816chan_getcaps(void *data)
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{
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return &ad1816_caps;
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}
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static void
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ad1816_release_resources(struct ad1816_info *ad1816, device_t dev)
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{
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if (ad1816->irq) {
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bus_release_resource(dev, SYS_RES_IRQ, ad1816->irq_rid,
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ad1816->irq);
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ad1816->irq = 0;
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}
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if (ad1816->drq1) {
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bus_release_resource(dev, SYS_RES_DRQ, ad1816->drq1_rid,
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ad1816->drq1);
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ad1816->drq1 = 0;
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}
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if (ad1816->drq2) {
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bus_release_resource(dev, SYS_RES_DRQ, ad1816->drq2_rid,
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ad1816->drq2);
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ad1816->drq2 = 0;
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}
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if (ad1816->io_base) {
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bus_release_resource(dev, SYS_RES_IOPORT, ad1816->io_rid,
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ad1816->io_base);
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ad1816->io_base = 0;
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}
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free(ad1816, M_DEVBUF);
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}
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static int
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ad1816_alloc_resources(struct ad1816_info *ad1816, device_t dev)
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{
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int ok = 1, pdma, rdma;
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if (!ad1816->io_base)
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ad1816->io_base = bus_alloc_resource(dev, SYS_RES_IOPORT, &ad1816->io_rid,
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0, ~0, 1, RF_ACTIVE);
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if (!ad1816->irq)
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ad1816->irq = bus_alloc_resource(dev, SYS_RES_IRQ, &ad1816->irq_rid,
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0, ~0, 1, RF_ACTIVE);
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if (!ad1816->drq1)
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ad1816->drq1 = bus_alloc_resource(dev, SYS_RES_DRQ, &ad1816->drq1_rid,
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0, ~0, 1, RF_ACTIVE);
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if (!ad1816->drq2)
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ad1816->drq2 = bus_alloc_resource(dev, SYS_RES_DRQ, &ad1816->drq2_rid,
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0, ~0, 1, RF_ACTIVE);
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if (!ad1816->io_base || !ad1816->drq1 || !ad1816->irq) ok = 0;
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if (ok) {
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pdma = rman_get_start(ad1816->drq1);
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isa_dma_acquire(pdma);
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isa_dmainit(pdma, DSP_BUFFSIZE);
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if (ad1816->drq2) {
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rdma = rman_get_start(ad1816->drq2);
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isa_dma_acquire(rdma);
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isa_dmainit(rdma, DSP_BUFFSIZE);
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} else rdma = pdma;
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if (pdma == rdma)
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pcm_setflags(dev, pcm_getflags(dev) | SD_F_SIMPLEX);
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}
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return ok;
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}
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static int
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ad1816_init(struct ad1816_info *ad1816, device_t dev)
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{
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ad1816_write(ad1816, 1, 0x2); /* disable interrupts */
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ad1816_write(ad1816, 32, 0x90F0); /* SoundSys Mode, split fmt */
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ad1816_write(ad1816, 5, 0x8080); /* FM volume mute */
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ad1816_write(ad1816, 6, 0x8080); /* I2S1 volume mute */
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ad1816_write(ad1816, 7, 0x8080); /* I2S0 volume mute */
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ad1816_write(ad1816, 17, 0x8888); /* VID Volume mute */
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ad1816_write(ad1816, 20, 0x5050); /* recsrc mic, agc off */
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/* adc gain is set to 0 */
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return 0;
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}
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static int
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ad1816_probe(device_t dev)
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{
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char *s = NULL;
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u_int32_t logical_id = isa_get_logicalid(dev);
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switch (logical_id) {
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case 0x80719304: /* ADS7180 */
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s = "AD1816";
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break;
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}
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if (s) {
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device_set_desc(dev, s);
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return 0;
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}
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return ENXIO;
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}
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static int
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ad1816_attach(device_t dev)
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{
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struct ad1816_info *ad1816;
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snddev_info *d = device_get_softc(dev);
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void *ih;
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char status[SND_STATUSLEN];
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ad1816 = (struct ad1816_info *)malloc(sizeof *ad1816, M_DEVBUF, M_NOWAIT);
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if (!ad1816) return ENXIO;
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bzero(ad1816, sizeof *ad1816);
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ad1816->io_rid = 2;
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ad1816->irq_rid = 0;
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ad1816->drq1_rid = 0;
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ad1816->drq2_rid = 1;
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if (!ad1816_alloc_resources(ad1816, dev)) goto no;
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ad1816_init(ad1816, dev);
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mixer_init(d, &ad1816_mixer, ad1816);
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bus_setup_intr(dev, ad1816->irq, INTR_TYPE_TTY, ad1816_intr, ad1816, &ih);
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if (bus_dma_tag_create(/*parent*/NULL, /*alignment*/2, /*boundary*/0,
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/*lowaddr*/BUS_SPACE_MAXADDR_24BIT,
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/*highaddr*/BUS_SPACE_MAXADDR,
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/*filter*/NULL, /*filterarg*/NULL,
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/*maxsize*/DSP_BUFFSIZE, /*nsegments*/1,
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/*maxsegz*/0x3ffff,
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/*flags*/0, &ad1816->parent_dmat) != 0) {
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device_printf(dev, "unable to create dma tag\n");
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goto no;
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}
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snprintf(status, SND_STATUSLEN, "at io 0x%lx irq %ld drq %ld",
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rman_get_start(ad1816->io_base),
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rman_get_start(ad1816->irq),
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rman_get_start(ad1816->drq1));
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if (ad1816->drq2) snprintf(status + strlen(status),
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SND_STATUSLEN - strlen(status), ":%ld",
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rman_get_start(ad1816->drq2));
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if (pcm_register(dev, ad1816, 1, 1)) goto no;
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pcm_addchan(dev, PCMDIR_REC, &ad1816_chantemplate, ad1816);
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pcm_addchan(dev, PCMDIR_PLAY, &ad1816_chantemplate, ad1816);
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pcm_setstatus(dev, status);
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return 0;
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no:
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ad1816_release_resources(ad1816, dev);
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return ENXIO;
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}
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static device_method_t ad1816_methods[] = {
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/* Device interface */
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DEVMETHOD(device_probe, ad1816_probe),
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DEVMETHOD(device_attach, ad1816_attach),
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{ 0, 0 }
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};
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static driver_t ad1816_driver = {
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"pcm",
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ad1816_methods,
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sizeof(snddev_info),
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};
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DRIVER_MODULE(ad1816, isa, ad1816_driver, pcm_devclass, 0, 0);
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