summaryrefslogtreecommitdiff
path: root/sound/oss/emu10k1/cardwo.c
diff options
context:
space:
mode:
Diffstat (limited to 'sound/oss/emu10k1/cardwo.c')
-rw-r--r--sound/oss/emu10k1/cardwo.c643
1 files changed, 0 insertions, 643 deletions
diff --git a/sound/oss/emu10k1/cardwo.c b/sound/oss/emu10k1/cardwo.c
deleted file mode 100644
index 54daca4f57b4..000000000000
--- a/sound/oss/emu10k1/cardwo.c
+++ /dev/null
@@ -1,643 +0,0 @@
-/*
- **********************************************************************
- * cardwo.c - PCM output HAL for emu10k1 driver
- * Copyright 1999, 2000 Creative Labs, Inc.
- *
- **********************************************************************
- *
- * Date Author Summary of changes
- * ---- ------ ------------------
- * October 20, 1999 Bertrand Lee base code release
- *
- **********************************************************************
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public
- * License along with this program; if not, write to the Free
- * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139,
- * USA.
- *
- **********************************************************************
- */
-
-#include <linux/poll.h>
-#include "hwaccess.h"
-#include "8010.h"
-#include "voicemgr.h"
-#include "cardwo.h"
-#include "audio.h"
-
-static u32 samplerate_to_linearpitch(u32 samplingrate)
-{
- samplingrate = (samplingrate << 8) / 375;
- return (samplingrate >> 1) + (samplingrate & 1);
-}
-
-static void query_format(struct emu10k1_wavedevice *wave_dev, struct wave_format *wave_fmt)
-{
- int i, j, do_passthrough = 0, is_ac3 = 0;
- struct emu10k1_card *card = wave_dev->card;
- struct woinst *woinst = wave_dev->woinst;
-
- if ((wave_fmt->channels > 2) && (wave_fmt->id != AFMT_S16_LE) && (wave_fmt->id != AFMT_U8))
- wave_fmt->channels = 2;
-
- if ((wave_fmt->channels < 1) || (wave_fmt->channels > WAVEOUT_MAXVOICES))
- wave_fmt->channels = 2;
-
- if (wave_fmt->channels == 2)
- woinst->num_voices = 1;
- else
- woinst->num_voices = wave_fmt->channels;
-
- if (wave_fmt->samplingrate >= 0x2ee00)
- wave_fmt->samplingrate = 0x2ee00;
-
- wave_fmt->passthrough = 0;
- do_passthrough = is_ac3 = 0;
-
- if (card->pt.selected)
- do_passthrough = 1;
-
- switch (wave_fmt->id) {
- case AFMT_S16_LE:
- wave_fmt->bitsperchannel = 16;
- break;
- case AFMT_U8:
- wave_fmt->bitsperchannel = 8;
- break;
- case AFMT_AC3:
- do_passthrough = 1;
- is_ac3 = 1;
- break;
- default:
- wave_fmt->id = AFMT_S16_LE;
- wave_fmt->bitsperchannel = 16;
- break;
- }
- if (do_passthrough) {
- /* currently only one waveout instance may use pass-through */
- if (woinst->state != WAVE_STATE_CLOSED ||
- card->pt.state != PT_STATE_INACTIVE ||
- (wave_fmt->samplingrate != 48000 && !is_ac3)) {
- DPF(2, "unable to set pass-through mode\n");
- } else if (USE_PT_METHOD1) {
- i = emu10k1_find_control_gpr(&card->mgr, card->pt.patch_name, card->pt.intr_gpr_name);
- j = emu10k1_find_control_gpr(&card->mgr, card->pt.patch_name, card->pt.enable_gpr_name);
- if (i < 0 || j < 0)
- DPF(2, "unable to set pass-through mode\n");
- else {
- wave_fmt->samplingrate = 48000;
- wave_fmt->channels = 2;
- card->pt.pos_gpr = emu10k1_find_control_gpr(&card->mgr, card->pt.patch_name,
- card->pt.pos_gpr_name);
- wave_fmt->passthrough = 1;
- card->pt.intr_gpr = i;
- card->pt.enable_gpr = j;
- card->pt.state = PT_STATE_INACTIVE;
-
- DPD(2, "is_ac3 is %d\n", is_ac3);
- card->pt.ac3data = is_ac3;
- wave_fmt->bitsperchannel = 16;
- }
- }else{
- DPF(2, "Using Passthrough Method 2\n");
- card->pt.enable_gpr = emu10k1_find_control_gpr(&card->mgr, card->pt.patch_name,
- card->pt.enable_gpr_name);
- wave_fmt->passthrough = 2;
- wave_fmt->bitsperchannel = 16;
- }
- }
-
- wave_fmt->bytesperchannel = wave_fmt->bitsperchannel >> 3;
- wave_fmt->bytespersample = wave_fmt->channels * wave_fmt->bytesperchannel;
- wave_fmt->bytespersec = wave_fmt->bytespersample * wave_fmt->samplingrate;
-
- if (wave_fmt->channels == 2)
- wave_fmt->bytespervoicesample = wave_fmt->channels * wave_fmt->bytesperchannel;
- else
- wave_fmt->bytespervoicesample = wave_fmt->bytesperchannel;
-}
-
-static int get_voice(struct emu10k1_card *card, struct woinst *woinst, unsigned int voicenum)
-{
- struct emu_voice *voice = &woinst->voice[voicenum];
-
- /* Allocate voices here, if no voices available, return error. */
-
- voice->usage = VOICE_USAGE_PLAYBACK;
-
- voice->flags = 0;
-
- if (woinst->format.channels == 2)
- voice->flags |= VOICE_FLAGS_STEREO;
-
- if (woinst->format.bitsperchannel == 16)
- voice->flags |= VOICE_FLAGS_16BIT;
-
- if (emu10k1_voice_alloc(card, voice) < 0) {
- voice->usage = VOICE_USAGE_FREE;
- return -1;
- }
-
- /* Calculate pitch */
- voice->initial_pitch = (u16) (srToPitch(woinst->format.samplingrate) >> 8);
- voice->pitch_target = samplerate_to_linearpitch(woinst->format.samplingrate);
-
- DPD(2, "Initial pitch --> %#x\n", voice->initial_pitch);
-
- voice->startloop = (voice->mem.emupageindex << 12) /
- woinst->format.bytespervoicesample;
- voice->endloop = voice->startloop + woinst->buffer.size / woinst->format.bytespervoicesample;
- voice->start = voice->startloop;
-
-
- voice->params[0].volume_target = 0xffff;
- voice->params[0].initial_fc = 0xff;
- voice->params[0].initial_attn = 0x00;
- voice->params[0].byampl_env_sustain = 0x7f;
- voice->params[0].byampl_env_decay = 0x7f;
-
-
- if (voice->flags & VOICE_FLAGS_STEREO) {
- if (woinst->format.passthrough == 2) {
- voice->params[0].send_routing = voice->params[1].send_routing = card->waveout.send_routing[ROUTE_PT];
- voice->params[0].send_routing2 = voice->params[1].send_routing2 = card->waveout.send_routing2[ROUTE_PT];
- voice->params[0].send_dcba = 0xff;
- voice->params[1].send_dcba = 0xff00;
- voice->params[0].send_hgfe = voice->params[1].send_hgfe=0;
- } else {
- voice->params[0].send_dcba = card->waveout.send_dcba[SEND_LEFT];
- voice->params[0].send_hgfe = card->waveout.send_hgfe[SEND_LEFT];
- voice->params[1].send_dcba = card->waveout.send_dcba[SEND_RIGHT];
- voice->params[1].send_hgfe = card->waveout.send_hgfe[SEND_RIGHT];
-
- if (woinst->device) {
- // /dev/dps1
- voice->params[0].send_routing = voice->params[1].send_routing = card->waveout.send_routing[ROUTE_PCM1];
- voice->params[0].send_routing2 = voice->params[1].send_routing2 = card->waveout.send_routing2[ROUTE_PCM1];
- } else {
- voice->params[0].send_routing = voice->params[1].send_routing = card->waveout.send_routing[ROUTE_PCM];
- voice->params[0].send_routing2 = voice->params[1].send_routing2 = card->waveout.send_routing2[ROUTE_PCM];
- }
- }
-
- voice->params[1].volume_target = 0xffff;
- voice->params[1].initial_fc = 0xff;
- voice->params[1].initial_attn = 0x00;
- voice->params[1].byampl_env_sustain = 0x7f;
- voice->params[1].byampl_env_decay = 0x7f;
- } else {
- if (woinst->num_voices > 1) {
- // Multichannel pcm
- voice->params[0].send_dcba=0xff;
- voice->params[0].send_hgfe=0;
- if (card->is_audigy) {
- voice->params[0].send_routing = 0x3f3f3f00 + card->mchannel_fx + voicenum;
- voice->params[0].send_routing2 = 0x3f3f3f3f;
- } else {
- voice->params[0].send_routing = 0xfff0 + card->mchannel_fx + voicenum;
- }
-
- } else {
- voice->params[0].send_dcba = card->waveout.send_dcba[SEND_MONO];
- voice->params[0].send_hgfe = card->waveout.send_hgfe[SEND_MONO];
-
- if (woinst->device) {
- voice->params[0].send_routing = card->waveout.send_routing[ROUTE_PCM1];
- voice->params[0].send_routing2 = card->waveout.send_routing2[ROUTE_PCM1];
- } else {
- voice->params[0].send_routing = card->waveout.send_routing[ROUTE_PCM];
- voice->params[0].send_routing2 = card->waveout.send_routing2[ROUTE_PCM];
- }
- }
- }
-
- DPD(2, "voice: startloop=%#x, endloop=%#x\n", voice->startloop, voice->endloop);
-
- emu10k1_voice_playback_setup(voice);
-
- return 0;
-}
-
-int emu10k1_waveout_open(struct emu10k1_wavedevice *wave_dev)
-{
- struct emu10k1_card *card = wave_dev->card;
- struct woinst *woinst = wave_dev->woinst;
- struct waveout_buffer *buffer = &woinst->buffer;
- unsigned int voicenum;
- u16 delay;
-
- DPF(2, "emu10k1_waveout_open()\n");
-
- for (voicenum = 0; voicenum < woinst->num_voices; voicenum++) {
- if (emu10k1_voice_alloc_buffer(card, &woinst->voice[voicenum].mem, woinst->buffer.pages) < 0) {
- ERROR();
- emu10k1_waveout_close(wave_dev);
- return -1;
- }
-
- if (get_voice(card, woinst, voicenum) < 0) {
- ERROR();
- emu10k1_waveout_close(wave_dev);
- return -1;
- }
- }
-
- buffer->fill_silence = 0;
- buffer->silence_bytes = 0;
- buffer->silence_pos = 0;
- buffer->hw_pos = 0;
- buffer->free_bytes = woinst->buffer.size;
-
- delay = (48000 * woinst->buffer.fragment_size) /
- (woinst->format.samplingrate * woinst->format.bytespervoicesample);
-
- emu10k1_timer_install(card, &woinst->timer, delay);
-
- woinst->state = WAVE_STATE_OPEN;
-
- return 0;
-}
-
-void emu10k1_waveout_close(struct emu10k1_wavedevice *wave_dev)
-{
- struct emu10k1_card *card = wave_dev->card;
- struct woinst *woinst = wave_dev->woinst;
- unsigned int voicenum;
-
- DPF(2, "emu10k1_waveout_close()\n");
-
- emu10k1_waveout_stop(wave_dev);
-
- emu10k1_timer_uninstall(card, &woinst->timer);
-
- for (voicenum = 0; voicenum < woinst->num_voices; voicenum++) {
- emu10k1_voice_free(&woinst->voice[voicenum]);
- emu10k1_voice_free_buffer(card, &woinst->voice[voicenum].mem);
- }
-
- woinst->state = WAVE_STATE_CLOSED;
-}
-
-void emu10k1_waveout_start(struct emu10k1_wavedevice *wave_dev)
-{
- struct emu10k1_card *card = wave_dev->card;
- struct woinst *woinst = wave_dev->woinst;
- struct pt_data *pt = &card->pt;
-
- DPF(2, "emu10k1_waveout_start()\n");
-
- if (woinst->format.passthrough == 2) {
- emu10k1_pt_setup(wave_dev);
- sblive_writeptr(card, (card->is_audigy ? A_GPR_BASE : GPR_BASE) + pt->enable_gpr, 0, 1);
- pt->state = PT_STATE_PLAYING;
- }
-
- /* Actual start */
- emu10k1_voices_start(woinst->voice, woinst->num_voices, woinst->total_played);
-
- emu10k1_timer_enable(card, &woinst->timer);
-
- woinst->state |= WAVE_STATE_STARTED;
-}
-
-int emu10k1_waveout_setformat(struct emu10k1_wavedevice *wave_dev, struct wave_format *format)
-{
- struct emu10k1_card *card = wave_dev->card;
- struct woinst *woinst = wave_dev->woinst;
- unsigned int voicenum;
- u16 delay;
-
- DPF(2, "emu10k1_waveout_setformat()\n");
-
- if (woinst->state & WAVE_STATE_STARTED)
- return -1;
-
- query_format(wave_dev, format);
-
- if (woinst->format.samplingrate != format->samplingrate ||
- woinst->format.channels != format->channels ||
- woinst->format.bitsperchannel != format->bitsperchannel) {
-
- woinst->format = *format;
-
- if (woinst->state == WAVE_STATE_CLOSED)
- return 0;
-
- emu10k1_timer_uninstall(card, &woinst->timer);
-
- for (voicenum = 0; voicenum < woinst->num_voices; voicenum++) {
- emu10k1_voice_free(&woinst->voice[voicenum]);
-
- if (get_voice(card, woinst, voicenum) < 0) {
- ERROR();
- emu10k1_waveout_close(wave_dev);
- return -1;
- }
- }
-
- delay = (48000 * woinst->buffer.fragment_size) /
- (woinst->format.samplingrate * woinst->format.bytespervoicesample);
-
- emu10k1_timer_install(card, &woinst->timer, delay);
- }
-
- return 0;
-}
-
-void emu10k1_waveout_stop(struct emu10k1_wavedevice *wave_dev)
-{
- struct emu10k1_card *card = wave_dev->card;
- struct woinst *woinst = wave_dev->woinst;
-
- DPF(2, "emu10k1_waveout_stop()\n");
-
- if (!(woinst->state & WAVE_STATE_STARTED))
- return;
-
- emu10k1_timer_disable(card, &woinst->timer);
-
- /* Stop actual voices */
- emu10k1_voices_stop(woinst->voice, woinst->num_voices);
-
- emu10k1_waveout_update(woinst);
-
- woinst->state &= ~WAVE_STATE_STARTED;
-}
-
-/**
- * emu10k1_waveout_getxfersize -
- *
- * gives the total free bytes on the voice buffer, including silence bytes
- * (basically: total_free_bytes = free_bytes + silence_bytes).
- *
- */
-void emu10k1_waveout_getxfersize(struct woinst *woinst, u32 *total_free_bytes)
-{
- struct waveout_buffer *buffer = &woinst->buffer;
- int pending_bytes;
-
- if (woinst->mmapped) {
- *total_free_bytes = buffer->free_bytes;
- return;
- }
-
- pending_bytes = buffer->size - buffer->free_bytes;
-
- buffer->fill_silence = (pending_bytes < (signed) buffer->fragment_size * 2) ? 1 : 0;
-
- if (pending_bytes > (signed) buffer->silence_bytes) {
- *total_free_bytes = (buffer->free_bytes + buffer->silence_bytes);
- } else {
- *total_free_bytes = buffer->size;
- buffer->silence_bytes = pending_bytes;
- if (pending_bytes < 0) {
- buffer->silence_pos = buffer->hw_pos;
- buffer->silence_bytes = 0;
- buffer->free_bytes = buffer->size;
- DPF(1, "buffer underrun\n");
- }
- }
-}
-
-/**
- * copy_block -
- *
- * copies a block of pcm data to a voice buffer.
- * Notice that the voice buffer is actually a set of disjointed memory pages.
- *
- */
-static void copy_block(void **dst, u32 str, u8 __user *src, u32 len)
-{
- unsigned int pg;
- unsigned int pgoff;
- unsigned int k;
-
- pg = str / PAGE_SIZE;
- pgoff = str % PAGE_SIZE;
-
- if (len > PAGE_SIZE - pgoff) {
- k = PAGE_SIZE - pgoff;
- if (__copy_from_user((u8 *)dst[pg] + pgoff, src, k))
- return;
- len -= k;
- while (len > PAGE_SIZE) {
- if (__copy_from_user(dst[++pg], src + k, PAGE_SIZE))
- return;
- k += PAGE_SIZE;
- len -= PAGE_SIZE;
- }
- if (__copy_from_user(dst[++pg], src + k, len))
- return;
-
- } else
- __copy_from_user((u8 *)dst[pg] + pgoff, src, len);
-}
-
-/**
- * copy_ilv_block -
- *
- * copies a block of pcm data containing n interleaved channels to n mono voice buffers.
- * Notice that the voice buffer is actually a set of disjointed memory pages.
- *
- */
-static void copy_ilv_block(struct woinst *woinst, u32 str, u8 __user *src, u32 len)
-{
- unsigned int pg;
- unsigned int pgoff;
- unsigned int voice_num;
- struct emu_voice *voice = woinst->voice;
-
- pg = str / PAGE_SIZE;
- pgoff = str % PAGE_SIZE;
-
- while (len) {
- for (voice_num = 0; voice_num < woinst->num_voices; voice_num++) {
- if (__copy_from_user((u8 *)(voice[voice_num].mem.addr[pg]) + pgoff, src, woinst->format.bytespervoicesample))
- return;
- src += woinst->format.bytespervoicesample;
- }
-
- len -= woinst->format.bytespervoicesample;
-
- pgoff += woinst->format.bytespervoicesample;
- if (pgoff >= PAGE_SIZE) {
- pgoff = 0;
- pg++;
- }
- }
-}
-
-/**
- * fill_block -
- *
- * fills a set voice buffers with a block of a given sample.
- *
- */
-static void fill_block(struct woinst *woinst, u32 str, u8 data, u32 len)
-{
- unsigned int pg;
- unsigned int pgoff;
- unsigned int voice_num;
- struct emu_voice *voice = woinst->voice;
- unsigned int k;
-
- pg = str / PAGE_SIZE;
- pgoff = str % PAGE_SIZE;
-
- if (len > PAGE_SIZE - pgoff) {
- k = PAGE_SIZE - pgoff;
- for (voice_num = 0; voice_num < woinst->num_voices; voice_num++)
- memset((u8 *)voice[voice_num].mem.addr[pg] + pgoff, data, k);
- len -= k;
- while (len > PAGE_SIZE) {
- pg++;
- for (voice_num = 0; voice_num < woinst->num_voices; voice_num++)
- memset(voice[voice_num].mem.addr[pg], data, PAGE_SIZE);
-
- len -= PAGE_SIZE;
- }
- pg++;
- for (voice_num = 0; voice_num < woinst->num_voices; voice_num++)
- memset(voice[voice_num].mem.addr[pg], data, len);
-
- } else {
- for (voice_num = 0; voice_num < woinst->num_voices; voice_num++)
- memset((u8 *)voice[voice_num].mem.addr[pg] + pgoff, data, len);
- }
-}
-
-/**
- * emu10k1_waveout_xferdata -
- *
- * copies pcm data to the voice buffer. Silence samples
- * previously added to the buffer are overwritten.
- *
- */
-void emu10k1_waveout_xferdata(struct woinst *woinst, u8 __user *data, u32 *size)
-{
- struct waveout_buffer *buffer = &woinst->buffer;
- struct voice_mem *mem = &woinst->voice[0].mem;
- u32 sizetocopy, sizetocopy_now, start;
- unsigned long flags;
-
- sizetocopy = min_t(u32, buffer->size, *size);
- *size = sizetocopy;
-
- if (!sizetocopy)
- return;
-
- spin_lock_irqsave(&woinst->lock, flags);
- start = (buffer->size + buffer->silence_pos - buffer->silence_bytes) % buffer->size;
-
- if (sizetocopy > buffer->silence_bytes) {
- buffer->silence_pos += sizetocopy - buffer->silence_bytes;
- buffer->free_bytes -= sizetocopy - buffer->silence_bytes;
- buffer->silence_bytes = 0;
- } else
- buffer->silence_bytes -= sizetocopy;
-
- spin_unlock_irqrestore(&woinst->lock, flags);
-
- sizetocopy_now = buffer->size - start;
- if (sizetocopy > sizetocopy_now) {
- sizetocopy -= sizetocopy_now;
- if (woinst->num_voices > 1) {
- copy_ilv_block(woinst, start, data, sizetocopy_now);
- copy_ilv_block(woinst, 0, data + sizetocopy_now * woinst->num_voices, sizetocopy);
- } else {
- copy_block(mem->addr, start, data, sizetocopy_now);
- copy_block(mem->addr, 0, data + sizetocopy_now, sizetocopy);
- }
- } else {
- if (woinst->num_voices > 1)
- copy_ilv_block(woinst, start, data, sizetocopy);
- else
- copy_block(mem->addr, start, data, sizetocopy);
- }
-}
-
-/**
- * emu10k1_waveout_fillsilence -
- *
- * adds samples of silence to the voice buffer so that we
- * don't loop over stale pcm data.
- *
- */
-void emu10k1_waveout_fillsilence(struct woinst *woinst)
-{
- struct waveout_buffer *buffer = &woinst->buffer;
- u32 sizetocopy, sizetocopy_now, start;
- u8 filldata;
- unsigned long flags;
-
- sizetocopy = buffer->fragment_size;
-
- if (woinst->format.bitsperchannel == 16)
- filldata = 0x00;
- else
- filldata = 0x80;
-
- spin_lock_irqsave(&woinst->lock, flags);
- buffer->silence_bytes += sizetocopy;
- buffer->free_bytes -= sizetocopy;
- buffer->silence_pos %= buffer->size;
- start = buffer->silence_pos;
- buffer->silence_pos += sizetocopy;
- spin_unlock_irqrestore(&woinst->lock, flags);
-
- sizetocopy_now = buffer->size - start;
-
- if (sizetocopy > sizetocopy_now) {
- sizetocopy -= sizetocopy_now;
- fill_block(woinst, start, filldata, sizetocopy_now);
- fill_block(woinst, 0, filldata, sizetocopy);
- } else {
- fill_block(woinst, start, filldata, sizetocopy);
- }
-}
-
-/**
- * emu10k1_waveout_update -
- *
- * updates the position of the voice buffer hardware pointer (hw_pos)
- * and the number of free bytes on the buffer (free_bytes).
- * The free bytes _don't_ include silence bytes that may have been
- * added to the buffer.
- *
- */
-void emu10k1_waveout_update(struct woinst *woinst)
-{
- u32 hw_pos;
- u32 diff;
-
- /* There is no actual start yet */
- if (!(woinst->state & WAVE_STATE_STARTED)) {
- hw_pos = woinst->buffer.hw_pos;
- } else {
- /* hw_pos in sample units */
- hw_pos = sblive_readptr(woinst->voice[0].card, CCCA_CURRADDR, woinst->voice[0].num);
-
- if(hw_pos < woinst->voice[0].start)
- hw_pos += woinst->buffer.size / woinst->format.bytespervoicesample - woinst->voice[0].start;
- else
- hw_pos -= woinst->voice[0].start;
-
- hw_pos *= woinst->format.bytespervoicesample;
- }
-
- diff = (woinst->buffer.size + hw_pos - woinst->buffer.hw_pos) % woinst->buffer.size;
- woinst->total_played += diff;
- woinst->buffer.free_bytes += diff;
- woinst->buffer.hw_pos = hw_pos;
-}