+++ /dev/null
-
-/*
- * sound/oss/pas2_mixer.c
- *
- * Mixer routines for the Pro Audio Spectrum cards.
- */
-
-/*
- * Copyright (C) by Hannu Savolainen 1993-1997
- *
- * OSS/Free for Linux is distributed under the GNU GENERAL PUBLIC LICENSE (GPL)
- * Version 2 (June 1991). See the "COPYING" file distributed with this software
- * for more info.
- */
-/*
- * Thomas Sailer : ioctl code reworked (vmalloc/vfree removed)
- * Bartlomiej Zolnierkiewicz : added __init to pas_init_mixer()
- */
-#include <linux/init.h>
-#include "sound_config.h"
-
-#include "pas2.h"
-
-extern int pas_translate_code;
-extern char pas_model;
-extern int *pas_osp;
-extern int pas_audiodev;
-
-static int rec_devices = (SOUND_MASK_MIC); /* Default recording source */
-static int mode_control;
-
-#define POSSIBLE_RECORDING_DEVICES (SOUND_MASK_SYNTH | SOUND_MASK_SPEAKER | SOUND_MASK_LINE | SOUND_MASK_MIC | \
- SOUND_MASK_CD | SOUND_MASK_ALTPCM)
-
-#define SUPPORTED_MIXER_DEVICES (SOUND_MASK_SYNTH | SOUND_MASK_PCM | SOUND_MASK_SPEAKER | SOUND_MASK_LINE | SOUND_MASK_MIC | \
- SOUND_MASK_CD | SOUND_MASK_ALTPCM | SOUND_MASK_IMIX | \
- SOUND_MASK_VOLUME | SOUND_MASK_BASS | SOUND_MASK_TREBLE | SOUND_MASK_RECLEV)
-
-static int *levels;
-
-static int default_levels[32] =
-{
- 0x3232, /* Master Volume */
- 0x3232, /* Bass */
- 0x3232, /* Treble */
- 0x5050, /* FM */
- 0x4b4b, /* PCM */
- 0x3232, /* PC Speaker */
- 0x4b4b, /* Ext Line */
- 0x4b4b, /* Mic */
- 0x4b4b, /* CD */
- 0x6464, /* Recording monitor */
- 0x4b4b, /* SB PCM */
- 0x6464 /* Recording level */
-};
-
-void
-mix_write(unsigned char data, int ioaddr)
-{
- /*
- * The Revision D cards have a problem with their MVA508 interface. The
- * kludge-o-rama fix is to make a 16-bit quantity with identical LSB and
- * MSBs out of the output byte and to do a 16-bit out to the mixer port -
- * 1. We need to do this because it isn't timing problem but chip access
- * sequence problem.
- */
-
- if (pas_model == 4)
- {
- outw(data | (data << 8), (ioaddr + pas_translate_code) - 1);
- outb((0x80), 0);
- } else
- pas_write(data, ioaddr);
-}
-
-static int
-mixer_output(int right_vol, int left_vol, int div, int bits,
- int mixer) /* Input or output mixer */
-{
- int left = left_vol * div / 100;
- int right = right_vol * div / 100;
-
-
- if (bits & 0x10)
- {
- left |= mixer;
- right |= mixer;
- }
- if (bits == 0x03 || bits == 0x04)
- {
- mix_write(0x80 | bits, 0x078B);
- mix_write(left, 0x078B);
- right_vol = left_vol;
- } else
- {
- mix_write(0x80 | 0x20 | bits, 0x078B);
- mix_write(left, 0x078B);
- mix_write(0x80 | 0x40 | bits, 0x078B);
- mix_write(right, 0x078B);
- }
-
- return (left_vol | (right_vol << 8));
-}
-
-static void
-set_mode(int new_mode)
-{
- mix_write(0x80 | 0x05, 0x078B);
- mix_write(new_mode, 0x078B);
-
- mode_control = new_mode;
-}
-
-static int
-pas_mixer_set(int whichDev, unsigned int level)
-{
- int left, right, devmask, changed, i, mixer = 0;
-
- left = level & 0x7f;
- right = (level & 0x7f00) >> 8;
-
- if (whichDev < SOUND_MIXER_NRDEVICES) {
- if ((1 << whichDev) & rec_devices)
- mixer = 0x20;
- else
- mixer = 0x00;
- }
-
- switch (whichDev)
- {
- case SOUND_MIXER_VOLUME: /* Master volume (0-63) */
- levels[whichDev] = mixer_output(right, left, 63, 0x01, 0);
- break;
-
- /*
- * Note! Bass and Treble are mono devices. Will use just the left
- * channel.
- */
- case SOUND_MIXER_BASS: /* Bass (0-12) */
- levels[whichDev] = mixer_output(right, left, 12, 0x03, 0);
- break;
- case SOUND_MIXER_TREBLE: /* Treble (0-12) */
- levels[whichDev] = mixer_output(right, left, 12, 0x04, 0);
- break;
-
- case SOUND_MIXER_SYNTH: /* Internal synthesizer (0-31) */
- levels[whichDev] = mixer_output(right, left, 31, 0x10 | 0x00, mixer);
- break;
- case SOUND_MIXER_PCM: /* PAS PCM (0-31) */
- levels[whichDev] = mixer_output(right, left, 31, 0x10 | 0x05, mixer);
- break;
- case SOUND_MIXER_ALTPCM: /* SB PCM (0-31) */
- levels[whichDev] = mixer_output(right, left, 31, 0x10 | 0x07, mixer);
- break;
- case SOUND_MIXER_SPEAKER: /* PC speaker (0-31) */
- levels[whichDev] = mixer_output(right, left, 31, 0x10 | 0x06, mixer);
- break;
- case SOUND_MIXER_LINE: /* External line (0-31) */
- levels[whichDev] = mixer_output(right, left, 31, 0x10 | 0x02, mixer);
- break;
- case SOUND_MIXER_CD: /* CD (0-31) */
- levels[whichDev] = mixer_output(right, left, 31, 0x10 | 0x03, mixer);
- break;
- case SOUND_MIXER_MIC: /* External microphone (0-31) */
- levels[whichDev] = mixer_output(right, left, 31, 0x10 | 0x04, mixer);
- break;
- case SOUND_MIXER_IMIX: /* Recording monitor (0-31) (Output mixer only) */
- levels[whichDev] = mixer_output(right, left, 31, 0x10 | 0x01,
- 0x00);
- break;
- case SOUND_MIXER_RECLEV: /* Recording level (0-15) */
- levels[whichDev] = mixer_output(right, left, 15, 0x02, 0);
- break;
-
-
- case SOUND_MIXER_RECSRC:
- devmask = level & POSSIBLE_RECORDING_DEVICES;
-
- changed = devmask ^ rec_devices;
- rec_devices = devmask;
-
- for (i = 0; i < SOUND_MIXER_NRDEVICES; i++)
- if (changed & (1 << i))
- {
- pas_mixer_set(i, levels[i]);
- }
- return rec_devices;
- break;
-
- default:
- return -EINVAL;
- }
-
- return (levels[whichDev]);
-}
-
-/*****/
-
-static void
-pas_mixer_reset(void)
-{
- int foo;
-
- for (foo = 0; foo < SOUND_MIXER_NRDEVICES; foo++)
- pas_mixer_set(foo, levels[foo]);
-
- set_mode(0x04 | 0x01);
-}
-
-static int pas_mixer_ioctl(int dev, unsigned int cmd, void __user *arg)
-{
- int level,v ;
- int __user *p = (int __user *)arg;
-
- if (cmd == SOUND_MIXER_PRIVATE1) { /* Set loudness bit */
- if (get_user(level, p))
- return -EFAULT;
- if (level == -1) /* Return current settings */
- level = (mode_control & 0x04);
- else {
- mode_control &= ~0x04;
- if (level)
- mode_control |= 0x04;
- set_mode(mode_control);
- }
- level = !!level;
- return put_user(level, p);
- }
- if (cmd == SOUND_MIXER_PRIVATE2) { /* Set enhance bit */
- if (get_user(level, p))
- return -EFAULT;
- if (level == -1) { /* Return current settings */
- if (!(mode_control & 0x03))
- level = 0;
- else
- level = ((mode_control & 0x03) + 1) * 20;
- } else {
- int i = 0;
-
- level &= 0x7f;
- if (level)
- i = (level / 20) - 1;
- mode_control &= ~0x03;
- mode_control |= i & 0x03;
- set_mode(mode_control);
- if (i)
- i = (i + 1) * 20;
- level = i;
- }
- return put_user(level, p);
- }
- if (cmd == SOUND_MIXER_PRIVATE3) { /* Set mute bit */
- if (get_user(level, p))
- return -EFAULT;
- if (level == -1) /* Return current settings */
- level = !(pas_read(0x0B8A) & 0x20);
- else {
- if (level)
- pas_write(pas_read(0x0B8A) & (~0x20), 0x0B8A);
- else
- pas_write(pas_read(0x0B8A) | 0x20, 0x0B8A);
-
- level = !(pas_read(0x0B8A) & 0x20);
- }
- return put_user(level, p);
- }
- if (((cmd >> 8) & 0xff) == 'M') {
- if (get_user(v, p))
- return -EFAULT;
- if (_SIOC_DIR(cmd) & _SIOC_WRITE) {
- v = pas_mixer_set(cmd & 0xff, v);
- } else {
- switch (cmd & 0xff) {
- case SOUND_MIXER_RECSRC:
- v = rec_devices;
- break;
-
- case SOUND_MIXER_STEREODEVS:
- v = SUPPORTED_MIXER_DEVICES & ~(SOUND_MASK_BASS | SOUND_MASK_TREBLE);
- break;
-
- case SOUND_MIXER_DEVMASK:
- v = SUPPORTED_MIXER_DEVICES;
- break;
-
- case SOUND_MIXER_RECMASK:
- v = POSSIBLE_RECORDING_DEVICES & SUPPORTED_MIXER_DEVICES;
- break;
-
- case SOUND_MIXER_CAPS:
- v = 0; /* No special capabilities */
- break;
-
- default:
- v = levels[cmd & 0xff];
- break;
- }
- }
- return put_user(v, p);
- }
- return -EINVAL;
-}
-
-static struct mixer_operations pas_mixer_operations =
-{
- .owner = THIS_MODULE,
- .id = "PAS16",
- .name = "Pro Audio Spectrum 16",
- .ioctl = pas_mixer_ioctl
-};
-
-int __init
-pas_init_mixer(void)
-{
- int d;
-
- levels = load_mixer_volumes("PAS16_1", default_levels, 1);
-
- pas_mixer_reset();
-
- if ((d = sound_alloc_mixerdev()) != -1)
- {
- audio_devs[pas_audiodev]->mixer_dev = d;
- mixer_devs[d] = &pas_mixer_operations;
- }
- return 1;
-}
projects / linux-2.6-microblaze.git / blobdiff