diff options
Diffstat (limited to 'sys/i386/isa/sound/pas2_mixer.c')
-rw-r--r-- | sys/i386/isa/sound/pas2_mixer.c | 322 |
1 files changed, 322 insertions, 0 deletions
diff --git a/sys/i386/isa/sound/pas2_mixer.c b/sys/i386/isa/sound/pas2_mixer.c new file mode 100644 index 0000000..305ef45 --- /dev/null +++ b/sys/i386/isa/sound/pas2_mixer.c @@ -0,0 +1,322 @@ +/* + * sound/pas2_mixer.c + * + * Mixer routines for the Pro Audio Spectrum cards. + * + * Copyright by Hannu Savolainen 1993 + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. 2. + * Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND ANY + * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR + * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER + * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + */ + +#define _PAS2_MIXER_C_ + +#include <i386/isa/sound/sound_config.h> + +#if defined(CONFIG_PAS) + +#include <i386/isa/sound/pas_hw.h> + +#define TRACE(what) /* (what) */ + +extern int translat_code; +extern char pas_model; +extern sound_os_info *pas_osp; + +static int rec_devices = (SOUND_MASK_MIC); /* Default recording source */ +static int mode_control = 0; + +#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 | \ + SOUND_MASK_MUTE | SOUND_MASK_ENHANCE | SOUND_MASK_LOUD) + +static u_short levels[SOUND_MIXER_NRDEVICES] = +{ + 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(u_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 == PAS_16D) { + outw((ioaddr ^ translat_code) - 1, data | (data << 8)); + outb(0, 0x80); + } 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 & P_M_MV508_MIXER) { /* Select input or output mixer */ + left |= mixer; + right |= mixer; + } + if (bits == P_M_MV508_BASS || bits == P_M_MV508_TREBLE) { /* Bass and treble are + * mono devices */ + mix_write(P_M_MV508_ADDRESS | bits, PARALLEL_MIXER); + mix_write(left, PARALLEL_MIXER); + right_vol = left_vol; + } else { + mix_write(P_M_MV508_ADDRESS | P_M_MV508_LEFT | bits, PARALLEL_MIXER); + mix_write(left, PARALLEL_MIXER); + mix_write(P_M_MV508_ADDRESS | P_M_MV508_RIGHT | bits, PARALLEL_MIXER); + mix_write(right, PARALLEL_MIXER); + } + + return (left_vol | (right_vol << 8)); +} + +static void +set_mode(int new_mode) +{ + mix_write(P_M_MV508_ADDRESS | P_M_MV508_MODE, PARALLEL_MIXER); + mix_write(new_mode, PARALLEL_MIXER); + + mode_control = new_mode; +} + +static int +pas_mixer_set(int whichDev, u_int level) +{ + int left, right, devmask, changed, i, mixer = 0; + + TRACE(printf("static int pas_mixer_set(int whichDev = %d, u_int level = %X)\n", whichDev, level)); + + left = level & 0x7f; + right = (level & 0x7f00) >> 8; + + if (whichDev < SOUND_MIXER_NRDEVICES) + if ((1 << whichDev) & rec_devices) + mixer = P_M_MV508_INPUTMIX; + else + mixer = P_M_MV508_OUTPUTMIX; + + switch (whichDev) { + case SOUND_MIXER_VOLUME: /* Master volume (0-63) */ + levels[whichDev] = mixer_output(right, left, 63, P_M_MV508_MASTER_A, 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, P_M_MV508_BASS, 0); + break; + case SOUND_MIXER_TREBLE: /* Treble (0-12) */ + levels[whichDev] = mixer_output(right, left, 12, P_M_MV508_TREBLE, 0); + break; + + case SOUND_MIXER_SYNTH:/* Internal synthesizer (0-31) */ + levels[whichDev] = mixer_output(right, left, 31, P_M_MV508_MIXER | P_M_MV508_FM, mixer); + break; + case SOUND_MIXER_PCM: /* PAS PCM (0-31) */ + levels[whichDev] = mixer_output(right, left, 31, P_M_MV508_MIXER | P_M_MV508_PCM, mixer); + break; + case SOUND_MIXER_ALTPCM: /* SB PCM (0-31) */ + levels[whichDev] = mixer_output(right, left, 31, P_M_MV508_MIXER | P_M_MV508_SB, mixer); + break; + case SOUND_MIXER_SPEAKER: /* PC speaker (0-31) */ + levels[whichDev] = mixer_output(right, left, 31, P_M_MV508_MIXER | P_M_MV508_SPEAKER, mixer); + break; + case SOUND_MIXER_LINE: /* External line (0-31) */ + levels[whichDev] = mixer_output(right, left, 31, P_M_MV508_MIXER | P_M_MV508_LINE, mixer); + break; + case SOUND_MIXER_CD: /* CD (0-31) */ + levels[whichDev] = mixer_output(right, left, 31, P_M_MV508_MIXER | P_M_MV508_CDROM, mixer); + break; + case SOUND_MIXER_MIC: /* External microphone (0-31) */ + levels[whichDev] = mixer_output(right, left, 31, P_M_MV508_MIXER | P_M_MV508_MIC, mixer); + break; + case SOUND_MIXER_IMIX: /* Recording monitor (0-31) (Output mixer + * only) */ + levels[whichDev] = mixer_output(right, left, 31, P_M_MV508_MIXER | P_M_MV508_IMIXER, + P_M_MV508_OUTPUTMIX); + break; + case SOUND_MIXER_RECLEV: /* Recording level (0-15) */ + levels[whichDev] = mixer_output(right, left, 15, P_M_MV508_MASTER_B, 0); + break; + + case SOUND_MIXER_MUTE: + return 0; + break; + + case SOUND_MIXER_ENHANCE: + i = 0; + level &= 0x7f; + if (level) + i = (level / 20) - 1; + + mode_control &= ~P_M_MV508_ENHANCE_BITS; + mode_control |= P_M_MV508_ENHANCE_BITS; + set_mode(mode_control); + + if (i) + i = (i + 1) * 20; + return i; + break; + + case SOUND_MIXER_LOUD: + mode_control &= ~P_M_MV508_LOUDNESS; + if (level) + mode_control |= P_M_MV508_LOUDNESS; + set_mode(mode_control); + return !!level; /* 0 or 1 */ + 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; + + TRACE(printf("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(P_M_MV508_LOUDNESS | P_M_MV508_ENHANCE_40); +} + +static int +pas_mixer_ioctl(int dev, u_int cmd, ioctl_arg arg) +{ + TRACE(printf("pas2_mixer.c: int pas_mixer_ioctl(u_int cmd = %X, u_int arg = %X)\n", cmd, arg)); + + if (((cmd >> 8) & 0xff) == 'M') { + if (cmd & IOC_IN) + return *(int *) arg = pas_mixer_set(cmd & 0xff, (*(int *) arg)); + else { /* Read parameters */ + + switch (cmd & 0xff) { + + case SOUND_MIXER_RECSRC: + return *(int *) arg = rec_devices; + break; + + case SOUND_MIXER_STEREODEVS: + return *(int *) arg = SUPPORTED_MIXER_DEVICES & ~(SOUND_MASK_BASS | SOUND_MASK_TREBLE); + break; + + case SOUND_MIXER_DEVMASK: + return *(int *) arg = SUPPORTED_MIXER_DEVICES; + break; + + case SOUND_MIXER_RECMASK: + return *(int *) arg = POSSIBLE_RECORDING_DEVICES & SUPPORTED_MIXER_DEVICES; + break; + + case SOUND_MIXER_CAPS: + return *(int *) arg = 0; /* No special + * capabilities */ + break; + + case SOUND_MIXER_MUTE: + return *(int *) arg = 0; /* No mute yet */ + break; + + case SOUND_MIXER_ENHANCE: + if (!(mode_control & P_M_MV508_ENHANCE_BITS)) + return *(int *) arg = 0; + return *(int *) arg = ((mode_control & P_M_MV508_ENHANCE_BITS) + 1) * 20; + break; + + case SOUND_MIXER_LOUD: + if (mode_control & P_M_MV508_LOUDNESS) + return *(int *) arg = 1; + return *(int *) arg = 0; + break; + + default: + return *(int *) arg = levels[cmd & 0xff]; + } + } + } + return -(EINVAL); +} + +static struct mixer_operations pas_mixer_operations = +{ + "Pro Audio Spectrum 16", + pas_mixer_ioctl +}; + +int +pas_init_mixer(void) +{ + pas_mixer_reset(); + + if (num_mixers < MAX_MIXER_DEV) + mixer_devs[num_mixers++] = &pas_mixer_operations; + return 1; +} + +#endif |