diff options
Diffstat (limited to 'sound/oss/emu10k1/cardwo.c')
| -rw-r--r-- | sound/oss/emu10k1/cardwo.c | 643 |
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; -} |