diff options
Diffstat (limited to 'ANDROID_3.4.5/sound/oss/pas2_mixer.c')
| -rw-r--r-- | ANDROID_3.4.5/sound/oss/pas2_mixer.c | 336 |
1 files changed, 336 insertions, 0 deletions
diff --git a/ANDROID_3.4.5/sound/oss/pas2_mixer.c b/ANDROID_3.4.5/sound/oss/pas2_mixer.c new file mode 100644 index 00000000..a0bcb85c --- /dev/null +++ b/ANDROID_3.4.5/sound/oss/pas2_mixer.c @@ -0,0 +1,336 @@ + +/* + * 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" + +#ifndef DEB +#define DEB(what) /* (what) */ +#endif + +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; + + DEB(printk("static int pas_mixer_set(int whichDev = %d, unsigned int level = %X)\n", whichDev, level)); + + 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; + + DEB(printk("pas2_mixer.c: void pas_mixer_reset(void)\n")); + + 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; + + DEB(printk("pas2_mixer.c: int pas_mixer_ioctl(unsigned int cmd = %X, unsigned int arg = %X)\n", cmd, 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; +} |