Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
diff --git a/sound/oss/emu10k1/voicemgr.c b/sound/oss/emu10k1/voicemgr.c
new file mode 100644
index 0000000..d88b602
--- /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);
+ }
+ }
+}
+