diff options
Diffstat (limited to 'sound/oss/emu10k1/voicemgr.c')
| -rw-r--r-- | sound/oss/emu10k1/voicemgr.c | 398 |
1 files changed, 398 insertions, 0 deletions
diff --git a/sound/oss/emu10k1/voicemgr.c b/sound/oss/emu10k1/voicemgr.c new file mode 100644 index 000000000000..d88b602c07c2 --- /dev/null +++ b/sound/oss/emu10k1/voicemgr.c @@ -0,0 +1,398 @@ +/* + ********************************************************************** + * voicemgr.c - Voice manager 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 "voicemgr.h" +#include "8010.h" + +#define PITCH_48000 0x00004000 +#define PITCH_96000 0x00008000 +#define PITCH_85000 0x00007155 +#define PITCH_80726 0x00006ba2 +#define PITCH_67882 0x00005a82 +#define PITCH_57081 0x00004c1c + +static u32 emu10k1_select_interprom(struct emu10k1_card *card, + struct emu_voice *voice) +{ + if(voice->pitch_target==PITCH_48000) + return CCCA_INTERPROM_0; + else if(voice->pitch_target<PITCH_48000) + return CCCA_INTERPROM_1; + else if(voice->pitch_target>=PITCH_96000) + return CCCA_INTERPROM_0; + else if(voice->pitch_target>=PITCH_85000) + return CCCA_INTERPROM_6; + else if(voice->pitch_target>=PITCH_80726) + return CCCA_INTERPROM_5; + else if(voice->pitch_target>=PITCH_67882) + return CCCA_INTERPROM_4; + else if(voice->pitch_target>=PITCH_57081) + return CCCA_INTERPROM_3; + else + return CCCA_INTERPROM_2; +} + + +/** + * emu10k1_voice_alloc_buffer - + * + * allocates the memory buffer for a voice. Two page tables are kept for each buffer. + * One (dma_handle) keeps track of the host memory pages used and the other (virtualpagetable) + * is passed to the device so that it can do DMA to host memory. + * + */ +int emu10k1_voice_alloc_buffer(struct emu10k1_card *card, struct voice_mem *mem, u32 pages) +{ + u32 pageindex, pagecount; + u32 busaddx; + int i; + + DPD(2, "requested pages is: %d\n", pages); + + if ((mem->emupageindex = emu10k1_addxmgr_alloc(pages * PAGE_SIZE, card)) < 0) + { + DPF(1, "couldn't allocate emu10k1 address space\n"); + return -1; + } + + /* Fill in virtual memory table */ + for (pagecount = 0; pagecount < pages; pagecount++) { + if ((mem->addr[pagecount] = pci_alloc_consistent(card->pci_dev, PAGE_SIZE, &mem->dma_handle[pagecount])) + == NULL) { + mem->pages = pagecount; + DPF(1, "couldn't allocate dma memory\n"); + return -1; + } + + DPD(2, "Virtual Addx: %p\n", mem->addr[pagecount]); + + for (i = 0; i < PAGE_SIZE / EMUPAGESIZE; i++) { + busaddx = (u32) mem->dma_handle[pagecount] + i * EMUPAGESIZE; + + DPD(3, "Bus Addx: %#x\n", busaddx); + + pageindex = mem->emupageindex + pagecount * PAGE_SIZE / EMUPAGESIZE + i; + + ((u32 *) card->virtualpagetable.addr)[pageindex] = cpu_to_le32((busaddx * 2) | pageindex); + } + } + + mem->pages = pagecount; + + return 0; +} + +/** + * emu10k1_voice_free_buffer - + * + * frees the memory buffer for a voice. + */ +void emu10k1_voice_free_buffer(struct emu10k1_card *card, struct voice_mem *mem) +{ + u32 pagecount, pageindex; + int i; + + if (mem->emupageindex < 0) + return; + + for (pagecount = 0; pagecount < mem->pages; pagecount++) { + pci_free_consistent(card->pci_dev, PAGE_SIZE, + mem->addr[pagecount], + mem->dma_handle[pagecount]); + + for (i = 0; i < PAGE_SIZE / EMUPAGESIZE; i++) { + pageindex = mem->emupageindex + pagecount * PAGE_SIZE / EMUPAGESIZE + i; + ((u32 *) card->virtualpagetable.addr)[pageindex] = + cpu_to_le32(((u32) card->silentpage.dma_handle * 2) | pageindex); + } + } + + emu10k1_addxmgr_free(card, mem->emupageindex); + mem->emupageindex = -1; +} + +int emu10k1_voice_alloc(struct emu10k1_card *card, struct emu_voice *voice) +{ + u8 *voicetable = card->voicetable; + int i; + unsigned long flags; + + DPF(2, "emu10k1_voice_alloc()\n"); + + spin_lock_irqsave(&card->lock, flags); + + if (voice->flags & VOICE_FLAGS_STEREO) { + for (i = 0; i < NUM_G; i += 2) + if ((voicetable[i] == VOICE_USAGE_FREE) && (voicetable[i + 1] == VOICE_USAGE_FREE)) { + voicetable[i] = voice->usage; + voicetable[i + 1] = voice->usage; + break; + } + } else { + for (i = 0; i < NUM_G; i++) + if (voicetable[i] == VOICE_USAGE_FREE) { + voicetable[i] = voice->usage; + break; + } + } + + spin_unlock_irqrestore(&card->lock, flags); + + if (i >= NUM_G) + return -1; + + voice->card = card; + voice->num = i; + + for (i = 0; i < (voice->flags & VOICE_FLAGS_STEREO ? 2 : 1); i++) { + DPD(2, " voice allocated -> %d\n", voice->num + i); + + sblive_writeptr_tag(card, voice->num + i, IFATN, 0xffff, + DCYSUSV, 0, + VTFT, 0x0000ffff, + PTRX, 0, + TAGLIST_END); + } + + return 0; +} + +void emu10k1_voice_free(struct emu_voice *voice) +{ + struct emu10k1_card *card = voice->card; + int i; + unsigned long flags; + + DPF(2, "emu10k1_voice_free()\n"); + + if (voice->usage == VOICE_USAGE_FREE) + return; + + for (i = 0; i < (voice->flags & VOICE_FLAGS_STEREO ? 2 : 1); i++) { + DPD(2, " voice released -> %d\n", voice->num + i); + + sblive_writeptr_tag(card, voice->num + i, DCYSUSV, 0, + VTFT, 0x0000ffff, + PTRX_PITCHTARGET, 0, + CVCF, 0x0000ffff, + //CPF, 0, + TAGLIST_END); + + sblive_writeptr(card, CPF, voice->num + i, 0); + } + + voice->usage = VOICE_USAGE_FREE; + + spin_lock_irqsave(&card->lock, flags); + + card->voicetable[voice->num] = VOICE_USAGE_FREE; + + if (voice->flags & VOICE_FLAGS_STEREO) + card->voicetable[voice->num + 1] = VOICE_USAGE_FREE; + + spin_unlock_irqrestore(&card->lock, flags); +} + +void emu10k1_voice_playback_setup(struct emu_voice *voice) +{ + struct emu10k1_card *card = voice->card; + u32 start; + int i; + + DPF(2, "emu10k1_voice_playback_setup()\n"); + + if (voice->flags & VOICE_FLAGS_STEREO) { + /* Set stereo bit */ + start = 28; + sblive_writeptr(card, CPF, voice->num, CPF_STEREO_MASK); + sblive_writeptr(card, CPF, voice->num + 1, CPF_STEREO_MASK); + } else { + start = 30; + sblive_writeptr(card, CPF, voice->num, 0); + } + + if(!(voice->flags & VOICE_FLAGS_16BIT)) + start *= 2; + + voice->start += start; + + for (i = 0; i < (voice->flags & VOICE_FLAGS_STEREO ? 2 : 1); i++) { + if (card->is_audigy) { + sblive_writeptr(card, A_FXRT1, voice->num + i, voice->params[i].send_routing); + sblive_writeptr(card, A_FXRT2, voice->num + i, voice->params[i].send_routing2); + sblive_writeptr(card, A_SENDAMOUNTS, voice->num + i, voice->params[i].send_hgfe); + } else { + sblive_writeptr(card, FXRT, voice->num + i, voice->params[i].send_routing << 16); + } + + /* Stop CA */ + /* Assumption that PT is already 0 so no harm overwriting */ + sblive_writeptr(card, PTRX, voice->num + i, ((voice->params[i].send_dcba & 0xff) << 8) + | ((voice->params[i].send_dcba & 0xff00) >> 8)); + + sblive_writeptr_tag(card, voice->num + i, + /* CSL, ST, CA */ + DSL, voice->endloop | (voice->params[i].send_dcba & 0xff000000), + PSST, voice->startloop | ((voice->params[i].send_dcba & 0x00ff0000) << 8), + CCCA, (voice->start) | emu10k1_select_interprom(card,voice) | + ((voice->flags & VOICE_FLAGS_16BIT) ? 0 : CCCA_8BITSELECT), + /* Clear filter delay memory */ + Z1, 0, + Z2, 0, + /* Invalidate maps */ + MAPA, MAP_PTI_MASK | ((u32) card->silentpage.dma_handle * 2), + MAPB, MAP_PTI_MASK | ((u32) card->silentpage.dma_handle * 2), + /* modulation envelope */ + CVCF, 0x0000ffff, + VTFT, 0x0000ffff, + ATKHLDM, 0, + DCYSUSM, 0x007f, + LFOVAL1, 0x8000, + LFOVAL2, 0x8000, + FMMOD, 0, + TREMFRQ, 0, + FM2FRQ2, 0, + ENVVAL, 0x8000, + /* volume envelope */ + ATKHLDV, 0x7f7f, + ENVVOL, 0x8000, + /* filter envelope */ + PEFE_FILTERAMOUNT, 0x7f, + /* pitch envelope */ + PEFE_PITCHAMOUNT, 0, TAGLIST_END); + + voice->params[i].fc_target = 0xffff; + } +} + +void emu10k1_voices_start(struct emu_voice *first_voice, unsigned int num_voices, int set) +{ + struct emu10k1_card *card = first_voice->card; + struct emu_voice *voice; + unsigned int voicenum; + int j; + + DPF(2, "emu10k1_voices_start()\n"); + + for (voicenum = 0; voicenum < num_voices; voicenum++) + { + voice = first_voice + voicenum; + + if (!set) { + u32 cra, ccis, cs, sample; + if (voice->flags & VOICE_FLAGS_STEREO) { + cra = 64; + ccis = 28; + cs = 4; + } else { + cra = 64; + ccis = 30; + cs = 2; + } + + if(voice->flags & VOICE_FLAGS_16BIT) { + sample = 0x00000000; + } else { + sample = 0x80808080; + ccis *= 2; + } + + for(j = 0; j < cs; j++) + sblive_writeptr(card, CD0 + j, voice->num, sample); + + /* Reset cache */ + sblive_writeptr(card, CCR_CACHEINVALIDSIZE, voice->num, 0); + if (voice->flags & VOICE_FLAGS_STEREO) + sblive_writeptr(card, CCR_CACHEINVALIDSIZE, voice->num + 1, 0); + + sblive_writeptr(card, CCR_READADDRESS, voice->num, cra); + + if (voice->flags & VOICE_FLAGS_STEREO) + sblive_writeptr(card, CCR_READADDRESS, voice->num + 1, cra); + + /* Fill cache */ + sblive_writeptr(card, CCR_CACHEINVALIDSIZE, voice->num, ccis); + } + + for (j = 0; j < (voice->flags & VOICE_FLAGS_STEREO ? 2 : 1); j++) { + sblive_writeptr_tag(card, voice->num + j, + IFATN, (voice->params[j].initial_fc << 8) | voice->params[j].initial_attn, + VTFT, (voice->params[j].volume_target << 16) | voice->params[j].fc_target, + CVCF, (voice->params[j].volume_target << 16) | voice->params[j].fc_target, + DCYSUSV, (voice->params[j].byampl_env_sustain << 8) | voice->params[j].byampl_env_decay, + TAGLIST_END); + + emu10k1_clear_stop_on_loop(card, voice->num + j); + } + } + + + for (voicenum = 0; voicenum < num_voices; voicenum++) + { + voice = first_voice + voicenum; + + for (j = 0; j < (voice->flags & VOICE_FLAGS_STEREO ? 2 : 1); j++) { + sblive_writeptr(card, PTRX_PITCHTARGET, voice->num + j, voice->pitch_target); + + if (j == 0) + sblive_writeptr(card, CPF_CURRENTPITCH, voice->num, voice->pitch_target); + + sblive_writeptr(card, IP, voice->num + j, voice->initial_pitch); + } + } +} + +void emu10k1_voices_stop(struct emu_voice *first_voice, int num_voices) +{ + struct emu10k1_card *card = first_voice->card; + struct emu_voice *voice; + unsigned int voice_num; + int j; + + DPF(2, "emu10k1_voice_stop()\n"); + + for (voice_num = 0; voice_num < num_voices; voice_num++) + { + voice = first_voice + voice_num; + + for (j = 0; j < (voice->flags & VOICE_FLAGS_STEREO ? 2 : 1); j++) { + sblive_writeptr_tag(card, voice->num + j, + PTRX_PITCHTARGET, 0, + CPF_CURRENTPITCH, 0, + IFATN, 0xffff, + VTFT, 0x0000ffff, + CVCF, 0x0000ffff, + IP, 0, + TAGLIST_END); + } + } +} + |