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linux/sound/pci/cs46xx/dsp_spos_scb_lib.c
Thomas Gleixner 1a59d1b8e0 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 
Based on 1 normalized pattern(s):

  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
  59 temple place suite 330 boston ma 02111 1307 usa

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-or-later

has been chosen to replace the boilerplate/reference in 1334 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Richard Fontana <rfontana@redhat.com>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190527070033.113240726@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-30 11:26:35 -07:00

1778 lines
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// SPDX-License-Identifier: GPL-2.0-or-later
/*
*/
/*
* 2002-07 Benny Sjostrand benny@hostmobility.com
*/
#include <linux/io.h>
#include <linux/delay.h>
#include <linux/pm.h>
#include <linux/init.h>
#include <linux/slab.h>
#include <linux/mutex.h>
#include <sound/core.h>
#include <sound/control.h>
#include <sound/info.h>
#include "cs46xx.h"
#include "cs46xx_lib.h"
#include "dsp_spos.h"
struct proc_scb_info {
struct dsp_scb_descriptor * scb_desc;
struct snd_cs46xx *chip;
};
static void remove_symbol (struct snd_cs46xx * chip, struct dsp_symbol_entry * symbol)
{
struct dsp_spos_instance * ins = chip->dsp_spos_instance;
int symbol_index = (int)(symbol - ins->symbol_table.symbols);
if (snd_BUG_ON(ins->symbol_table.nsymbols <= 0))
return;
if (snd_BUG_ON(symbol_index < 0 ||
symbol_index >= ins->symbol_table.nsymbols))
return;
ins->symbol_table.symbols[symbol_index].deleted = 1;
if (symbol_index < ins->symbol_table.highest_frag_index) {
ins->symbol_table.highest_frag_index = symbol_index;
}
if (symbol_index == ins->symbol_table.nsymbols - 1)
ins->symbol_table.nsymbols --;
if (ins->symbol_table.highest_frag_index > ins->symbol_table.nsymbols) {
ins->symbol_table.highest_frag_index = ins->symbol_table.nsymbols;
}
}
#ifdef CONFIG_SND_PROC_FS
static void cs46xx_dsp_proc_scb_info_read (struct snd_info_entry *entry,
struct snd_info_buffer *buffer)
{
struct proc_scb_info * scb_info = entry->private_data;
struct dsp_scb_descriptor * scb = scb_info->scb_desc;
struct snd_cs46xx *chip = scb_info->chip;
int j,col;
void __iomem *dst = chip->region.idx[1].remap_addr + DSP_PARAMETER_BYTE_OFFSET;
mutex_lock(&chip->spos_mutex);
snd_iprintf(buffer,"%04x %s:\n",scb->address,scb->scb_name);
for (col = 0,j = 0;j < 0x10; j++,col++) {
if (col == 4) {
snd_iprintf(buffer,"\n");
col = 0;
}
snd_iprintf(buffer,"%08x ",readl(dst + (scb->address + j) * sizeof(u32)));
}
snd_iprintf(buffer,"\n");
if (scb->parent_scb_ptr != NULL) {
snd_iprintf(buffer,"parent [%s:%04x] ",
scb->parent_scb_ptr->scb_name,
scb->parent_scb_ptr->address);
} else snd_iprintf(buffer,"parent [none] ");
snd_iprintf(buffer,"sub_list_ptr [%s:%04x]\nnext_scb_ptr [%s:%04x] task_entry [%s:%04x]\n",
scb->sub_list_ptr->scb_name,
scb->sub_list_ptr->address,
scb->next_scb_ptr->scb_name,
scb->next_scb_ptr->address,
scb->task_entry->symbol_name,
scb->task_entry->address);
snd_iprintf(buffer,"index [%d] ref_count [%d]\n",scb->index,scb->ref_count);
mutex_unlock(&chip->spos_mutex);
}
#endif
static void _dsp_unlink_scb (struct snd_cs46xx *chip, struct dsp_scb_descriptor * scb)
{
struct dsp_spos_instance * ins = chip->dsp_spos_instance;
if ( scb->parent_scb_ptr ) {
/* unlink parent SCB */
if (snd_BUG_ON(scb->parent_scb_ptr->sub_list_ptr != scb &&
scb->parent_scb_ptr->next_scb_ptr != scb))
return;
if (scb->parent_scb_ptr->sub_list_ptr == scb) {
if (scb->next_scb_ptr == ins->the_null_scb) {
/* last and only node in parent sublist */
scb->parent_scb_ptr->sub_list_ptr = scb->sub_list_ptr;
if (scb->sub_list_ptr != ins->the_null_scb) {
scb->sub_list_ptr->parent_scb_ptr = scb->parent_scb_ptr;
}
scb->sub_list_ptr = ins->the_null_scb;
} else {
/* first node in parent sublist */
scb->parent_scb_ptr->sub_list_ptr = scb->next_scb_ptr;
if (scb->next_scb_ptr != ins->the_null_scb) {
/* update next node parent ptr. */
scb->next_scb_ptr->parent_scb_ptr = scb->parent_scb_ptr;
}
scb->next_scb_ptr = ins->the_null_scb;
}
} else {
scb->parent_scb_ptr->next_scb_ptr = scb->next_scb_ptr;
if (scb->next_scb_ptr != ins->the_null_scb) {
/* update next node parent ptr. */
scb->next_scb_ptr->parent_scb_ptr = scb->parent_scb_ptr;
}
scb->next_scb_ptr = ins->the_null_scb;
}
/* update parent first entry in DSP RAM */
cs46xx_dsp_spos_update_scb(chip,scb->parent_scb_ptr);
/* then update entry in DSP RAM */
cs46xx_dsp_spos_update_scb(chip,scb);
scb->parent_scb_ptr = NULL;
}
}
static void _dsp_clear_sample_buffer (struct snd_cs46xx *chip, u32 sample_buffer_addr,
int dword_count)
{
void __iomem *dst = chip->region.idx[2].remap_addr + sample_buffer_addr;
int i;
for (i = 0; i < dword_count ; ++i ) {
writel(0, dst);
dst += 4;
}
}
void cs46xx_dsp_remove_scb (struct snd_cs46xx *chip, struct dsp_scb_descriptor * scb)
{
struct dsp_spos_instance * ins = chip->dsp_spos_instance;
unsigned long flags;
/* check integrety */
if (snd_BUG_ON(scb->index < 0 ||
scb->index >= ins->nscb ||
(ins->scbs + scb->index) != scb))
return;
#if 0
/* can't remove a SCB with childs before
removing childs first */
if (snd_BUG_ON(scb->sub_list_ptr != ins->the_null_scb ||
scb->next_scb_ptr != ins->the_null_scb))
goto _end;
#endif
spin_lock_irqsave(&chip->reg_lock, flags);
_dsp_unlink_scb (chip,scb);
spin_unlock_irqrestore(&chip->reg_lock, flags);
cs46xx_dsp_proc_free_scb_desc(scb);
if (snd_BUG_ON(!scb->scb_symbol))
return;
remove_symbol (chip,scb->scb_symbol);
ins->scbs[scb->index].deleted = 1;
#ifdef CONFIG_PM_SLEEP
kfree(ins->scbs[scb->index].data);
ins->scbs[scb->index].data = NULL;
#endif
if (scb->index < ins->scb_highest_frag_index)
ins->scb_highest_frag_index = scb->index;
if (scb->index == ins->nscb - 1) {
ins->nscb --;
}
if (ins->scb_highest_frag_index > ins->nscb) {
ins->scb_highest_frag_index = ins->nscb;
}
#if 0
/* !!!! THIS IS A PIECE OF SHIT MADE BY ME !!! */
for(i = scb->index + 1;i < ins->nscb; ++i) {
ins->scbs[i - 1].index = i - 1;
}
#endif
}
#ifdef CONFIG_SND_PROC_FS
void cs46xx_dsp_proc_free_scb_desc (struct dsp_scb_descriptor * scb)
{
if (scb->proc_info) {
struct proc_scb_info * scb_info = scb->proc_info->private_data;
struct snd_cs46xx *chip = scb_info->chip;
dev_dbg(chip->card->dev,
"cs46xx_dsp_proc_free_scb_desc: freeing %s\n",
scb->scb_name);
snd_info_free_entry(scb->proc_info);
scb->proc_info = NULL;
kfree (scb_info);
}
}
void cs46xx_dsp_proc_register_scb_desc (struct snd_cs46xx *chip,
struct dsp_scb_descriptor * scb)
{
struct dsp_spos_instance * ins = chip->dsp_spos_instance;
struct snd_info_entry * entry;
struct proc_scb_info * scb_info;
/* register to proc */
if (ins->snd_card != NULL && ins->proc_dsp_dir != NULL &&
scb->proc_info == NULL) {
entry = snd_info_create_card_entry(ins->snd_card, scb->scb_name,
ins->proc_dsp_dir);
if (entry) {
scb_info = kmalloc(sizeof(struct proc_scb_info), GFP_KERNEL);
if (!scb_info) {
snd_info_free_entry(entry);
entry = NULL;
goto out;
}
scb_info->chip = chip;
scb_info->scb_desc = scb;
snd_info_set_text_ops(entry, scb_info,
cs46xx_dsp_proc_scb_info_read);
}
out:
scb->proc_info = entry;
}
}
#endif /* CONFIG_SND_PROC_FS */
static struct dsp_scb_descriptor *
_dsp_create_generic_scb (struct snd_cs46xx *chip, char * name, u32 * scb_data, u32 dest,
struct dsp_symbol_entry * task_entry,
struct dsp_scb_descriptor * parent_scb,
int scb_child_type)
{
struct dsp_spos_instance * ins = chip->dsp_spos_instance;
struct dsp_scb_descriptor * scb;
unsigned long flags;
if (snd_BUG_ON(!ins->the_null_scb))
return NULL;
/* fill the data that will be wroten to DSP */
scb_data[SCBsubListPtr] =
(ins->the_null_scb->address << 0x10) | ins->the_null_scb->address;
scb_data[SCBfuncEntryPtr] &= 0xFFFF0000;
scb_data[SCBfuncEntryPtr] |= task_entry->address;
dev_dbg(chip->card->dev, "dsp_spos: creating SCB <%s>\n", name);
scb = cs46xx_dsp_create_scb(chip,name,scb_data,dest);
scb->sub_list_ptr = ins->the_null_scb;
scb->next_scb_ptr = ins->the_null_scb;
scb->parent_scb_ptr = parent_scb;
scb->task_entry = task_entry;
/* update parent SCB */
if (scb->parent_scb_ptr) {
#if 0
dev_dbg(chip->card->dev,
"scb->parent_scb_ptr = %s\n",
scb->parent_scb_ptr->scb_name);
dev_dbg(chip->card->dev,
"scb->parent_scb_ptr->next_scb_ptr = %s\n",
scb->parent_scb_ptr->next_scb_ptr->scb_name);
dev_dbg(chip->card->dev,
"scb->parent_scb_ptr->sub_list_ptr = %s\n",
scb->parent_scb_ptr->sub_list_ptr->scb_name);
#endif
/* link to parent SCB */
if (scb_child_type == SCB_ON_PARENT_NEXT_SCB) {
if (snd_BUG_ON(scb->parent_scb_ptr->next_scb_ptr !=
ins->the_null_scb))
return NULL;
scb->parent_scb_ptr->next_scb_ptr = scb;
} else if (scb_child_type == SCB_ON_PARENT_SUBLIST_SCB) {
if (snd_BUG_ON(scb->parent_scb_ptr->sub_list_ptr !=
ins->the_null_scb))
return NULL;
scb->parent_scb_ptr->sub_list_ptr = scb;
} else {
snd_BUG();
}
spin_lock_irqsave(&chip->reg_lock, flags);
/* update entry in DSP RAM */
cs46xx_dsp_spos_update_scb(chip,scb->parent_scb_ptr);
spin_unlock_irqrestore(&chip->reg_lock, flags);
}
cs46xx_dsp_proc_register_scb_desc (chip,scb);
return scb;
}
static struct dsp_scb_descriptor *
cs46xx_dsp_create_generic_scb (struct snd_cs46xx *chip, char * name, u32 * scb_data,
u32 dest, char * task_entry_name,
struct dsp_scb_descriptor * parent_scb,
int scb_child_type)
{
struct dsp_symbol_entry * task_entry;
task_entry = cs46xx_dsp_lookup_symbol (chip,task_entry_name,
SYMBOL_CODE);
if (task_entry == NULL) {
dev_err(chip->card->dev,
"dsp_spos: symbol %s not found\n", task_entry_name);
return NULL;
}
return _dsp_create_generic_scb (chip,name,scb_data,dest,task_entry,
parent_scb,scb_child_type);
}
struct dsp_scb_descriptor *
cs46xx_dsp_create_timing_master_scb (struct snd_cs46xx *chip)
{
struct dsp_scb_descriptor * scb;
struct dsp_timing_master_scb timing_master_scb = {
{ 0,
0,
0,
0
},
{ 0,
0,
0,
0,
0
},
0,0,
0,NULL_SCB_ADDR,
0,0, /* extraSampleAccum:TMreserved */
0,0, /* codecFIFOptr:codecFIFOsyncd */
0x0001,0x8000, /* fracSampAccumQm1:TMfrmsLeftInGroup */
0x0001,0x0000, /* fracSampCorrectionQm1:TMfrmGroupLength */
0x00060000 /* nSampPerFrmQ15 */
};
scb = cs46xx_dsp_create_generic_scb(chip,"TimingMasterSCBInst",(u32 *)&timing_master_scb,
TIMINGMASTER_SCB_ADDR,
"TIMINGMASTER",NULL,SCB_NO_PARENT);
return scb;
}
struct dsp_scb_descriptor *
cs46xx_dsp_create_codec_out_scb(struct snd_cs46xx * chip, char * codec_name,
u16 channel_disp, u16 fifo_addr, u16 child_scb_addr,
u32 dest, struct dsp_scb_descriptor * parent_scb,
int scb_child_type)
{
struct dsp_scb_descriptor * scb;
struct dsp_codec_output_scb codec_out_scb = {
{ 0,
0,
0,
0
},
{
0,
0,
0,
0,
0
},
0,0,
0,NULL_SCB_ADDR,
0, /* COstrmRsConfig */
0, /* COstrmBufPtr */
channel_disp,fifo_addr, /* leftChanBaseIOaddr:rightChanIOdisp */
0x0000,0x0080, /* (!AC97!) COexpVolChangeRate:COscaleShiftCount */
0,child_scb_addr /* COreserved - need child scb to work with rom code */
};
scb = cs46xx_dsp_create_generic_scb(chip,codec_name,(u32 *)&codec_out_scb,
dest,"S16_CODECOUTPUTTASK",parent_scb,
scb_child_type);
return scb;
}
struct dsp_scb_descriptor *
cs46xx_dsp_create_codec_in_scb(struct snd_cs46xx * chip, char * codec_name,
u16 channel_disp, u16 fifo_addr, u16 sample_buffer_addr,
u32 dest, struct dsp_scb_descriptor * parent_scb,
int scb_child_type)
{
struct dsp_scb_descriptor * scb;
struct dsp_codec_input_scb codec_input_scb = {
{ 0,
0,
0,
0
},
{
0,
0,
0,
0,
0
},
#if 0 /* cs4620 */
SyncIOSCB,NULL_SCB_ADDR
#else
0 , 0,
#endif
0,0,
RSCONFIG_SAMPLE_16STEREO + RSCONFIG_MODULO_64, /* strmRsConfig */
sample_buffer_addr << 0x10, /* strmBufPtr; defined as a dword ptr, used as a byte ptr */
channel_disp,fifo_addr, /* (!AC97!) leftChanBaseINaddr=AC97primary
link input slot 3 :rightChanINdisp=""slot 4 */
0x0000,0x0000, /* (!AC97!) ????:scaleShiftCount; no shift needed
because AC97 is already 20 bits */
0x80008000 /* ??clw cwcgame.scb has 0 */
};
scb = cs46xx_dsp_create_generic_scb(chip,codec_name,(u32 *)&codec_input_scb,
dest,"S16_CODECINPUTTASK",parent_scb,
scb_child_type);
return scb;
}
static struct dsp_scb_descriptor *
cs46xx_dsp_create_pcm_reader_scb(struct snd_cs46xx * chip, char * scb_name,
u16 sample_buffer_addr, u32 dest,
int virtual_channel, u32 playback_hw_addr,
struct dsp_scb_descriptor * parent_scb,
int scb_child_type)
{
struct dsp_spos_instance * ins = chip->dsp_spos_instance;
struct dsp_scb_descriptor * scb;
struct dsp_generic_scb pcm_reader_scb = {
/*
Play DMA Task xfers data from host buffer to SP buffer
init/runtime variables:
PlayAC: Play Audio Data Conversion - SCB loc: 2nd dword, mask: 0x0000F000L
DATA_FMT_16BIT_ST_LTLEND(0x00000000L) from 16-bit stereo, little-endian
DATA_FMT_8_BIT_ST_SIGNED(0x00001000L) from 8-bit stereo, signed
DATA_FMT_16BIT_MN_LTLEND(0x00002000L) from 16-bit mono, little-endian
DATA_FMT_8_BIT_MN_SIGNED(0x00003000L) from 8-bit mono, signed
DATA_FMT_16BIT_ST_BIGEND(0x00004000L) from 16-bit stereo, big-endian
DATA_FMT_16BIT_MN_BIGEND(0x00006000L) from 16-bit mono, big-endian
DATA_FMT_8_BIT_ST_UNSIGNED(0x00009000L) from 8-bit stereo, unsigned
DATA_FMT_8_BIT_MN_UNSIGNED(0x0000b000L) from 8-bit mono, unsigned
? Other combinations possible from:
DMA_RQ_C2_AUDIO_CONVERT_MASK 0x0000F000L
DMA_RQ_C2_AC_NONE 0x00000000L
DMA_RQ_C2_AC_8_TO_16_BIT 0x00001000L
DMA_RQ_C2_AC_MONO_TO_STEREO 0x00002000L
DMA_RQ_C2_AC_ENDIAN_CONVERT 0x00004000L
DMA_RQ_C2_AC_SIGNED_CONVERT 0x00008000L
HostBuffAddr: Host Buffer Physical Byte Address - SCB loc:3rd dword, Mask: 0xFFFFFFFFL
aligned to dword boundary
*/
/* Basic (non scatter/gather) DMA requestor (4 ints) */
{ DMA_RQ_C1_SOURCE_ON_HOST + /* source buffer is on the host */
DMA_RQ_C1_SOURCE_MOD1024 + /* source buffer is 1024 dwords (4096 bytes) */
DMA_RQ_C1_DEST_MOD32 + /* dest buffer(PCMreaderBuf) is 32 dwords*/
DMA_RQ_C1_WRITEBACK_SRC_FLAG + /* ?? */
DMA_RQ_C1_WRITEBACK_DEST_FLAG + /* ?? */
15, /* DwordCount-1: picked 16 for DwordCount because Jim */
/* Barnette said that is what we should use since */
/* we are not running in optimized mode? */
DMA_RQ_C2_AC_NONE +
DMA_RQ_C2_SIGNAL_SOURCE_PINGPONG + /* set play interrupt (bit0) in HISR when source */
/* buffer (on host) crosses half-way point */
virtual_channel, /* Play DMA channel arbitrarily set to 0 */
playback_hw_addr, /* HostBuffAddr (source) */
DMA_RQ_SD_SP_SAMPLE_ADDR + /* destination buffer is in SP Sample Memory */
sample_buffer_addr /* SP Buffer Address (destination) */
},
/* Scatter/gather DMA requestor extension (5 ints) */
{
0,
0,
0,
0,
0
},
/* Sublist pointer & next stream control block (SCB) link. */
NULL_SCB_ADDR,NULL_SCB_ADDR,
/* Pointer to this tasks parameter block & stream function pointer */
0,NULL_SCB_ADDR,
/* rsConfig register for stream buffer (rsDMA reg. is loaded from basicReq.daw */
/* for incoming streams, or basicReq.saw, for outgoing streams) */
RSCONFIG_DMA_ENABLE + /* enable DMA */
(19 << RSCONFIG_MAX_DMA_SIZE_SHIFT) + /* MAX_DMA_SIZE picked to be 19 since SPUD */
/* uses it for some reason */
((dest >> 4) << RSCONFIG_STREAM_NUM_SHIFT) + /* stream number = SCBaddr/16 */
RSCONFIG_SAMPLE_16STEREO +
RSCONFIG_MODULO_32, /* dest buffer(PCMreaderBuf) is 32 dwords (256 bytes) */
/* Stream sample pointer & MAC-unit mode for this stream */
(sample_buffer_addr << 0x10),
/* Fractional increment per output sample in the input sample buffer */
0,
{
/* Standard stereo volume control
default muted */
0xffff,0xffff,
0xffff,0xffff
}
};
if (ins->null_algorithm == NULL) {
ins->null_algorithm = cs46xx_dsp_lookup_symbol (chip,"NULLALGORITHM",
SYMBOL_CODE);
if (ins->null_algorithm == NULL) {
dev_err(chip->card->dev,
"dsp_spos: symbol NULLALGORITHM not found\n");
return NULL;
}
}
scb = _dsp_create_generic_scb(chip,scb_name,(u32 *)&pcm_reader_scb,
dest,ins->null_algorithm,parent_scb,
scb_child_type);
return scb;
}
#define GOF_PER_SEC 200
struct dsp_scb_descriptor *
cs46xx_dsp_create_src_task_scb(struct snd_cs46xx * chip, char * scb_name,
int rate,
u16 src_buffer_addr,
u16 src_delay_buffer_addr, u32 dest,
struct dsp_scb_descriptor * parent_scb,
int scb_child_type,
int pass_through)
{
struct dsp_spos_instance * ins = chip->dsp_spos_instance;
struct dsp_scb_descriptor * scb;
unsigned int tmp1, tmp2;
unsigned int phiIncr;
unsigned int correctionPerGOF, correctionPerSec;
dev_dbg(chip->card->dev, "dsp_spos: setting %s rate to %u\n",
scb_name, rate);
/*
* Compute the values used to drive the actual sample rate conversion.
* The following formulas are being computed, using inline assembly
* since we need to use 64 bit arithmetic to compute the values:
*
* phiIncr = floor((Fs,in * 2^26) / Fs,out)
* correctionPerGOF = floor((Fs,in * 2^26 - Fs,out * phiIncr) /
* GOF_PER_SEC)
* ulCorrectionPerSec = Fs,in * 2^26 - Fs,out * phiIncr -M
* GOF_PER_SEC * correctionPerGOF
*
* i.e.
*
* phiIncr:other = dividend:remainder((Fs,in * 2^26) / Fs,out)
* correctionPerGOF:correctionPerSec =
* dividend:remainder(ulOther / GOF_PER_SEC)
*/
tmp1 = rate << 16;
phiIncr = tmp1 / 48000;
tmp1 -= phiIncr * 48000;
tmp1 <<= 10;
phiIncr <<= 10;
tmp2 = tmp1 / 48000;
phiIncr += tmp2;
tmp1 -= tmp2 * 48000;
correctionPerGOF = tmp1 / GOF_PER_SEC;
tmp1 -= correctionPerGOF * GOF_PER_SEC;
correctionPerSec = tmp1;
{
struct dsp_src_task_scb src_task_scb = {
0x0028,0x00c8,
0x5555,0x0000,
0x0000,0x0000,
src_buffer_addr,1,
correctionPerGOF,correctionPerSec,
RSCONFIG_SAMPLE_16STEREO + RSCONFIG_MODULO_32,
0x0000,src_delay_buffer_addr,
0x0,
0x080,(src_delay_buffer_addr + (24 * 4)),
0,0, /* next_scb, sub_list_ptr */
0,0, /* entry, this_spb */
RSCONFIG_SAMPLE_16STEREO + RSCONFIG_MODULO_8,
src_buffer_addr << 0x10,
phiIncr,
{
0xffff - ins->dac_volume_right,0xffff - ins->dac_volume_left,
0xffff - ins->dac_volume_right,0xffff - ins->dac_volume_left
}
};
if (ins->s16_up == NULL) {
ins->s16_up = cs46xx_dsp_lookup_symbol (chip,"S16_UPSRC",
SYMBOL_CODE);
if (ins->s16_up == NULL) {
dev_err(chip->card->dev,
"dsp_spos: symbol S16_UPSRC not found\n");
return NULL;
}
}
/* clear buffers */
_dsp_clear_sample_buffer (chip,src_buffer_addr,8);
_dsp_clear_sample_buffer (chip,src_delay_buffer_addr,32);
if (pass_through) {
/* wont work with any other rate than
the native DSP rate */
snd_BUG_ON(rate != 48000);
scb = cs46xx_dsp_create_generic_scb(chip,scb_name,(u32 *)&src_task_scb,
dest,"DMAREADER",parent_scb,
scb_child_type);
} else {
scb = _dsp_create_generic_scb(chip,scb_name,(u32 *)&src_task_scb,
dest,ins->s16_up,parent_scb,
scb_child_type);
}
}
return scb;
}
#if 0 /* not used */
struct dsp_scb_descriptor *
cs46xx_dsp_create_filter_scb(struct snd_cs46xx * chip, char * scb_name,
u16 buffer_addr, u32 dest,
struct dsp_scb_descriptor * parent_scb,
int scb_child_type) {
struct dsp_scb_descriptor * scb;
struct dsp_filter_scb filter_scb = {
.a0_right = 0x41a9,
.a0_left = 0x41a9,
.a1_right = 0xb8e4,
.a1_left = 0xb8e4,
.a2_right = 0x3e55,
.a2_left = 0x3e55,
.filter_unused3 = 0x0000,
.filter_unused2 = 0x0000,
.output_buf_ptr = buffer_addr,
.init = 0x000,
.prev_sample_output1 = 0x00000000,
.prev_sample_output2 = 0x00000000,
.prev_sample_input1 = 0x00000000,
.prev_sample_input2 = 0x00000000,
.next_scb_ptr = 0x0000,
.sub_list_ptr = 0x0000,
.entry_point = 0x0000,
.spb_ptr = 0x0000,
.b0_right = 0x0e38,
.b0_left = 0x0e38,
.b1_right = 0x1c71,
.b1_left = 0x1c71,
.b2_right = 0x0e38,
.b2_left = 0x0e38,
};
scb = cs46xx_dsp_create_generic_scb(chip,scb_name,(u32 *)&filter_scb,
dest,"FILTERTASK",parent_scb,
scb_child_type);
return scb;
}
#endif /* not used */
struct dsp_scb_descriptor *
cs46xx_dsp_create_mix_only_scb(struct snd_cs46xx * chip, char * scb_name,
u16 mix_buffer_addr, u32 dest,
struct dsp_scb_descriptor * parent_scb,
int scb_child_type)
{
struct dsp_scb_descriptor * scb;
struct dsp_mix_only_scb master_mix_scb = {
/* 0 */ { 0,
/* 1 */ 0,
/* 2 */ mix_buffer_addr,
/* 3 */ 0
/* */ },
{
/* 4 */ 0,
/* 5 */ 0,
/* 6 */ 0,
/* 7 */ 0,
/* 8 */ 0x00000080
},
/* 9 */ 0,0,
/* A */ 0,0,
/* B */ RSCONFIG_SAMPLE_16STEREO + RSCONFIG_MODULO_32,
/* C */ (mix_buffer_addr + (16 * 4)) << 0x10,
/* D */ 0,
{
/* E */ 0x8000,0x8000,
/* F */ 0x8000,0x8000
}
};
scb = cs46xx_dsp_create_generic_scb(chip,scb_name,(u32 *)&master_mix_scb,
dest,"S16_MIX",parent_scb,
scb_child_type);
return scb;
}
struct dsp_scb_descriptor *
cs46xx_dsp_create_mix_to_ostream_scb(struct snd_cs46xx * chip, char * scb_name,
u16 mix_buffer_addr, u16 writeback_spb, u32 dest,
struct dsp_scb_descriptor * parent_scb,
int scb_child_type)
{
struct dsp_scb_descriptor * scb;
struct dsp_mix2_ostream_scb mix2_ostream_scb = {
/* Basic (non scatter/gather) DMA requestor (4 ints) */
{
DMA_RQ_C1_SOURCE_MOD64 +
DMA_RQ_C1_DEST_ON_HOST +
DMA_RQ_C1_DEST_MOD1024 +
DMA_RQ_C1_WRITEBACK_SRC_FLAG +
DMA_RQ_C1_WRITEBACK_DEST_FLAG +
15,
DMA_RQ_C2_AC_NONE +
DMA_RQ_C2_SIGNAL_DEST_PINGPONG +
CS46XX_DSP_CAPTURE_CHANNEL,
DMA_RQ_SD_SP_SAMPLE_ADDR +
mix_buffer_addr,
0x0
},
{ 0, 0, 0, 0, 0, },
0,0,
0,writeback_spb,
RSCONFIG_DMA_ENABLE +
(19 << RSCONFIG_MAX_DMA_SIZE_SHIFT) +
((dest >> 4) << RSCONFIG_STREAM_NUM_SHIFT) +
RSCONFIG_DMA_TO_HOST +
RSCONFIG_SAMPLE_16STEREO +
RSCONFIG_MODULO_64,
(mix_buffer_addr + (32 * 4)) << 0x10,
1,0,
0x0001,0x0080,
0xFFFF,0
};
scb = cs46xx_dsp_create_generic_scb(chip,scb_name,(u32 *)&mix2_ostream_scb,
dest,"S16_MIX_TO_OSTREAM",parent_scb,
scb_child_type);
return scb;
}
struct dsp_scb_descriptor *
cs46xx_dsp_create_vari_decimate_scb(struct snd_cs46xx * chip,char * scb_name,
u16 vari_buffer_addr0,
u16 vari_buffer_addr1,
u32 dest,
struct dsp_scb_descriptor * parent_scb,
int scb_child_type)
{
struct dsp_scb_descriptor * scb;
struct dsp_vari_decimate_scb vari_decimate_scb = {
0x0028,0x00c8,
0x5555,0x0000,
0x0000,0x0000,
vari_buffer_addr0,vari_buffer_addr1,
0x0028,0x00c8,
RSCONFIG_SAMPLE_16STEREO + RSCONFIG_MODULO_256,
0xFF800000,
0,
0x0080,vari_buffer_addr1 + (25 * 4),
0,0,
0,0,
RSCONFIG_SAMPLE_16STEREO + RSCONFIG_MODULO_8,
vari_buffer_addr0 << 0x10,
0x04000000,
{
0x8000,0x8000,
0xFFFF,0xFFFF
}
};
scb = cs46xx_dsp_create_generic_scb(chip,scb_name,(u32 *)&vari_decimate_scb,
dest,"VARIDECIMATE",parent_scb,
scb_child_type);
return scb;
}
static struct dsp_scb_descriptor *
cs46xx_dsp_create_pcm_serial_input_scb(struct snd_cs46xx * chip, char * scb_name, u32 dest,
struct dsp_scb_descriptor * input_scb,
struct dsp_scb_descriptor * parent_scb,
int scb_child_type)
{
struct dsp_scb_descriptor * scb;
struct dsp_pcm_serial_input_scb pcm_serial_input_scb = {
{ 0,
0,
0,
0
},
{
0,
0,
0,
0,
0
},
0,0,
0,0,
RSCONFIG_SAMPLE_16STEREO + RSCONFIG_MODULO_16,
0,
/* 0xD */ 0,input_scb->address,
{
/* 0xE */ 0x8000,0x8000,
/* 0xF */ 0x8000,0x8000
}
};
scb = cs46xx_dsp_create_generic_scb(chip,scb_name,(u32 *)&pcm_serial_input_scb,
dest,"PCMSERIALINPUTTASK",parent_scb,
scb_child_type);
return scb;
}
static struct dsp_scb_descriptor *
cs46xx_dsp_create_asynch_fg_tx_scb(struct snd_cs46xx * chip, char * scb_name, u32 dest,
u16 hfg_scb_address,
u16 asynch_buffer_address,
struct dsp_scb_descriptor * parent_scb,
int scb_child_type)
{
struct dsp_scb_descriptor * scb;
struct dsp_asynch_fg_tx_scb asynch_fg_tx_scb = {
0xfc00,0x03ff, /* Prototype sample buffer size of 256 dwords */
0x0058,0x0028, /* Min Delta 7 dwords == 28 bytes */
/* : Max delta 25 dwords == 100 bytes */
0,hfg_scb_address, /* Point to HFG task SCB */
0,0, /* Initialize current Delta and Consumer ptr adjustment count */
0, /* Initialize accumulated Phi to 0 */
0,0x2aab, /* Const 1/3 */
{
0, /* Define the unused elements */
0,
0
},
0,0,
0,dest + AFGTxAccumPhi,
RSCONFIG_SAMPLE_16STEREO + RSCONFIG_MODULO_256, /* Stereo, 256 dword */
(asynch_buffer_address) << 0x10, /* This should be automagically synchronized
to the producer pointer */
/* There is no correct initial value, it will depend upon the detected
rate etc */
0x18000000, /* Phi increment for approx 32k operation */
0x8000,0x8000, /* Volume controls are unused at this time */
0x8000,0x8000
};
scb = cs46xx_dsp_create_generic_scb(chip,scb_name,(u32 *)&asynch_fg_tx_scb,
dest,"ASYNCHFGTXCODE",parent_scb,
scb_child_type);
return scb;
}
struct dsp_scb_descriptor *
cs46xx_dsp_create_asynch_fg_rx_scb(struct snd_cs46xx * chip, char * scb_name, u32 dest,
u16 hfg_scb_address,
u16 asynch_buffer_address,
struct dsp_scb_descriptor * parent_scb,
int scb_child_type)
{
struct dsp_spos_instance * ins = chip->dsp_spos_instance;
struct dsp_scb_descriptor * scb;
struct dsp_asynch_fg_rx_scb asynch_fg_rx_scb = {
0xfe00,0x01ff, /* Prototype sample buffer size of 128 dwords */
0x0064,0x001c, /* Min Delta 7 dwords == 28 bytes */
/* : Max delta 25 dwords == 100 bytes */
0,hfg_scb_address, /* Point to HFG task SCB */
0,0, /* Initialize current Delta and Consumer ptr adjustment count */
{
0, /* Define the unused elements */
0,
0,
0,
0
},
0,0,
0,dest,
RSCONFIG_MODULO_128 |
RSCONFIG_SAMPLE_16STEREO, /* Stereo, 128 dword */
( (asynch_buffer_address + (16 * 4)) << 0x10), /* This should be automagically
synchrinized to the producer pointer */
/* There is no correct initial value, it will depend upon the detected
rate etc */
0x18000000,
/* Set IEC958 input volume */
0xffff - ins->spdif_input_volume_right,0xffff - ins->spdif_input_volume_left,
0xffff - ins->spdif_input_volume_right,0xffff - ins->spdif_input_volume_left,
};
scb = cs46xx_dsp_create_generic_scb(chip,scb_name,(u32 *)&asynch_fg_rx_scb,
dest,"ASYNCHFGRXCODE",parent_scb,
scb_child_type);
return scb;
}
#if 0 /* not used */
struct dsp_scb_descriptor *
cs46xx_dsp_create_output_snoop_scb(struct snd_cs46xx * chip, char * scb_name, u32 dest,
u16 snoop_buffer_address,
struct dsp_scb_descriptor * snoop_scb,
struct dsp_scb_descriptor * parent_scb,
int scb_child_type)
{
struct dsp_scb_descriptor * scb;
struct dsp_output_snoop_scb output_snoop_scb = {
{ 0, /* not used. Zero */
0,
0,
0,
},
{
0, /* not used. Zero */
0,
0,
0,
0
},
0,0,
0,0,
RSCONFIG_SAMPLE_16STEREO + RSCONFIG_MODULO_64,
snoop_buffer_address << 0x10,
0,0,
0,
0,snoop_scb->address
};
scb = cs46xx_dsp_create_generic_scb(chip,scb_name,(u32 *)&output_snoop_scb,
dest,"OUTPUTSNOOP",parent_scb,
scb_child_type);
return scb;
}
#endif /* not used */
struct dsp_scb_descriptor *
cs46xx_dsp_create_spio_write_scb(struct snd_cs46xx * chip, char * scb_name, u32 dest,
struct dsp_scb_descriptor * parent_scb,
int scb_child_type)
{
struct dsp_scb_descriptor * scb;
struct dsp_spio_write_scb spio_write_scb = {
0,0, /* SPIOWAddress2:SPIOWAddress1; */
0, /* SPIOWData1; */
0, /* SPIOWData2; */
0,0, /* SPIOWAddress4:SPIOWAddress3; */
0, /* SPIOWData3; */
0, /* SPIOWData4; */
0,0, /* SPIOWDataPtr:Unused1; */
{ 0,0 }, /* Unused2[2]; */
0,0, /* SPIOWChildPtr:SPIOWSiblingPtr; */
0,0, /* SPIOWThisPtr:SPIOWEntryPoint; */
{
0,
0,
0,
0,
0 /* Unused3[5]; */
}
};
scb = cs46xx_dsp_create_generic_scb(chip,scb_name,(u32 *)&spio_write_scb,
dest,"SPIOWRITE",parent_scb,
scb_child_type);
return scb;
}
struct dsp_scb_descriptor *
cs46xx_dsp_create_magic_snoop_scb(struct snd_cs46xx * chip, char * scb_name, u32 dest,
u16 snoop_buffer_address,
struct dsp_scb_descriptor * snoop_scb,
struct dsp_scb_descriptor * parent_scb,
int scb_child_type)
{
struct dsp_scb_descriptor * scb;
struct dsp_magic_snoop_task magic_snoop_scb = {
/* 0 */ 0, /* i0 */
/* 1 */ 0, /* i1 */
/* 2 */ snoop_buffer_address << 0x10,
/* 3 */ 0,snoop_scb->address,
/* 4 */ 0, /* i3 */
/* 5 */ 0, /* i4 */
/* 6 */ 0, /* i5 */
/* 7 */ 0, /* i6 */
/* 8 */ 0, /* i7 */
/* 9 */ 0,0, /* next_scb, sub_list_ptr */
/* A */ 0,0, /* entry_point, this_ptr */
/* B */ RSCONFIG_SAMPLE_16STEREO + RSCONFIG_MODULO_64,
/* C */ snoop_buffer_address << 0x10,
/* D */ 0,
/* E */ { 0x8000,0x8000,
/* F */ 0xffff,0xffff
}
};
scb = cs46xx_dsp_create_generic_scb(chip,scb_name,(u32 *)&magic_snoop_scb,
dest,"MAGICSNOOPTASK",parent_scb,
scb_child_type);
return scb;
}
static struct dsp_scb_descriptor *
find_next_free_scb (struct snd_cs46xx * chip, struct dsp_scb_descriptor * from)
{
struct dsp_spos_instance * ins = chip->dsp_spos_instance;
struct dsp_scb_descriptor * scb = from;
while (scb->next_scb_ptr != ins->the_null_scb) {
if (snd_BUG_ON(!scb->next_scb_ptr))
return NULL;
scb = scb->next_scb_ptr;
}
return scb;
}
static u32 pcm_reader_buffer_addr[DSP_MAX_PCM_CHANNELS] = {
0x0600, /* 1 */
0x1500, /* 2 */
0x1580, /* 3 */
0x1600, /* 4 */
0x1680, /* 5 */
0x1700, /* 6 */
0x1780, /* 7 */
0x1800, /* 8 */
0x1880, /* 9 */
0x1900, /* 10 */
0x1980, /* 11 */
0x1A00, /* 12 */
0x1A80, /* 13 */
0x1B00, /* 14 */
0x1B80, /* 15 */
0x1C00, /* 16 */
0x1C80, /* 17 */
0x1D00, /* 18 */
0x1D80, /* 19 */
0x1E00, /* 20 */
0x1E80, /* 21 */
0x1F00, /* 22 */
0x1F80, /* 23 */
0x2000, /* 24 */
0x2080, /* 25 */
0x2100, /* 26 */
0x2180, /* 27 */
0x2200, /* 28 */
0x2280, /* 29 */
0x2300, /* 30 */
0x2380, /* 31 */
0x2400, /* 32 */
};
static u32 src_output_buffer_addr[DSP_MAX_SRC_NR] = {
0x2B80,
0x2BA0,
0x2BC0,
0x2BE0,
0x2D00,
0x2D20,
0x2D40,
0x2D60,
0x2D80,
0x2DA0,
0x2DC0,
0x2DE0,
0x2E00,
0x2E20
};
static u32 src_delay_buffer_addr[DSP_MAX_SRC_NR] = {
0x2480,
0x2500,
0x2580,
0x2600,
0x2680,
0x2700,
0x2780,
0x2800,
0x2880,
0x2900,
0x2980,
0x2A00,
0x2A80,
0x2B00
};
struct dsp_pcm_channel_descriptor *
cs46xx_dsp_create_pcm_channel (struct snd_cs46xx * chip,
u32 sample_rate, void * private_data,
u32 hw_dma_addr,
int pcm_channel_id)
{
struct dsp_spos_instance * ins = chip->dsp_spos_instance;
struct dsp_scb_descriptor * src_scb = NULL, * pcm_scb, * mixer_scb = NULL;
struct dsp_scb_descriptor * src_parent_scb = NULL;
/* struct dsp_scb_descriptor * pcm_parent_scb; */
char scb_name[DSP_MAX_SCB_NAME];
int i, pcm_index = -1, insert_point, src_index = -1, pass_through = 0;
unsigned long flags;
switch (pcm_channel_id) {
case DSP_PCM_MAIN_CHANNEL:
mixer_scb = ins->master_mix_scb;
break;
case DSP_PCM_REAR_CHANNEL:
mixer_scb = ins->rear_mix_scb;
break;
case DSP_PCM_CENTER_LFE_CHANNEL:
mixer_scb = ins->center_lfe_mix_scb;
break;
case DSP_PCM_S71_CHANNEL:
/* TODO */
snd_BUG();
break;
case DSP_IEC958_CHANNEL:
if (snd_BUG_ON(!ins->asynch_tx_scb))
return NULL;
mixer_scb = ins->asynch_tx_scb;
/* if sample rate is set to 48khz we pass
the Sample Rate Converted (which could
alter the raw data stream ...) */
if (sample_rate == 48000) {
dev_dbg(chip->card->dev, "IEC958 pass through\n");
/* Hack to bypass creating a new SRC */
pass_through = 1;
}
break;
default:
snd_BUG();
return NULL;
}
/* default sample rate is 44100 */
if (!sample_rate) sample_rate = 44100;
/* search for a already created SRC SCB with the same sample rate */
for (i = 0; i < DSP_MAX_PCM_CHANNELS &&
(pcm_index == -1 || src_scb == NULL); ++i) {
/* virtual channel reserved
for capture */
if (i == CS46XX_DSP_CAPTURE_CHANNEL) continue;
if (ins->pcm_channels[i].active) {
if (!src_scb &&
ins->pcm_channels[i].sample_rate == sample_rate &&
ins->pcm_channels[i].mixer_scb == mixer_scb) {
src_scb = ins->pcm_channels[i].src_scb;
ins->pcm_channels[i].src_scb->ref_count ++;
src_index = ins->pcm_channels[i].src_slot;
}
} else if (pcm_index == -1) {
pcm_index = i;
}
}
if (pcm_index == -1) {
dev_err(chip->card->dev, "dsp_spos: no free PCM channel\n");
return NULL;
}
if (src_scb == NULL) {
if (ins->nsrc_scb >= DSP_MAX_SRC_NR) {
dev_err(chip->card->dev,
"dsp_spos: to many SRC instances\n!");
return NULL;
}
/* find a free slot */
for (i = 0; i < DSP_MAX_SRC_NR; ++i) {
if (ins->src_scb_slots[i] == 0) {
src_index = i;
ins->src_scb_slots[i] = 1;
break;
}
}
if (snd_BUG_ON(src_index == -1))
return NULL;
/* we need to create a new SRC SCB */
if (mixer_scb->sub_list_ptr == ins->the_null_scb) {
src_parent_scb = mixer_scb;
insert_point = SCB_ON_PARENT_SUBLIST_SCB;
} else {
src_parent_scb = find_next_free_scb(chip,mixer_scb->sub_list_ptr);
insert_point = SCB_ON_PARENT_NEXT_SCB;
}
snprintf (scb_name,DSP_MAX_SCB_NAME,"SrcTask_SCB%d",src_index);
dev_dbg(chip->card->dev,
"dsp_spos: creating SRC \"%s\"\n", scb_name);
src_scb = cs46xx_dsp_create_src_task_scb(chip,scb_name,
sample_rate,
src_output_buffer_addr[src_index],
src_delay_buffer_addr[src_index],
/* 0x400 - 0x600 source SCBs */
0x400 + (src_index * 0x10) ,
src_parent_scb,
insert_point,
pass_through);
if (!src_scb) {
dev_err(chip->card->dev,
"dsp_spos: failed to create SRCtaskSCB\n");
return NULL;
}
/* cs46xx_dsp_set_src_sample_rate(chip,src_scb,sample_rate); */
ins->nsrc_scb ++;
}
snprintf (scb_name,DSP_MAX_SCB_NAME,"PCMReader_SCB%d",pcm_index);
dev_dbg(chip->card->dev, "dsp_spos: creating PCM \"%s\" (%d)\n",
scb_name, pcm_channel_id);
pcm_scb = cs46xx_dsp_create_pcm_reader_scb(chip,scb_name,
pcm_reader_buffer_addr[pcm_index],
/* 0x200 - 400 PCMreader SCBs */
(pcm_index * 0x10) + 0x200,
pcm_index, /* virtual channel 0-31 */
hw_dma_addr, /* pcm hw addr */
NULL, /* parent SCB ptr */
0 /* insert point */
);
if (!pcm_scb) {
dev_err(chip->card->dev,
"dsp_spos: failed to create PCMreaderSCB\n");
return NULL;
}
spin_lock_irqsave(&chip->reg_lock, flags);
ins->pcm_channels[pcm_index].sample_rate = sample_rate;
ins->pcm_channels[pcm_index].pcm_reader_scb = pcm_scb;
ins->pcm_channels[pcm_index].src_scb = src_scb;
ins->pcm_channels[pcm_index].unlinked = 1;
ins->pcm_channels[pcm_index].private_data = private_data;
ins->pcm_channels[pcm_index].src_slot = src_index;
ins->pcm_channels[pcm_index].active = 1;
ins->pcm_channels[pcm_index].pcm_slot = pcm_index;
ins->pcm_channels[pcm_index].mixer_scb = mixer_scb;
ins->npcm_channels ++;
spin_unlock_irqrestore(&chip->reg_lock, flags);
return (ins->pcm_channels + pcm_index);
}
int cs46xx_dsp_pcm_channel_set_period (struct snd_cs46xx * chip,
struct dsp_pcm_channel_descriptor * pcm_channel,
int period_size)
{
u32 temp = snd_cs46xx_peek (chip,pcm_channel->pcm_reader_scb->address << 2);
temp &= ~DMA_RQ_C1_SOURCE_SIZE_MASK;
switch (period_size) {
case 2048:
temp |= DMA_RQ_C1_SOURCE_MOD1024;
break;
case 1024:
temp |= DMA_RQ_C1_SOURCE_MOD512;
break;
case 512:
temp |= DMA_RQ_C1_SOURCE_MOD256;
break;
case 256:
temp |= DMA_RQ_C1_SOURCE_MOD128;
break;
case 128:
temp |= DMA_RQ_C1_SOURCE_MOD64;
break;
case 64:
temp |= DMA_RQ_C1_SOURCE_MOD32;
break;
case 32:
temp |= DMA_RQ_C1_SOURCE_MOD16;
break;
default:
dev_dbg(chip->card->dev,
"period size (%d) not supported by HW\n", period_size);
return -EINVAL;
}
snd_cs46xx_poke (chip,pcm_channel->pcm_reader_scb->address << 2,temp);
return 0;
}
int cs46xx_dsp_pcm_ostream_set_period (struct snd_cs46xx * chip,
int period_size)
{
u32 temp = snd_cs46xx_peek (chip,WRITEBACK_SCB_ADDR << 2);
temp &= ~DMA_RQ_C1_DEST_SIZE_MASK;
switch (period_size) {
case 2048:
temp |= DMA_RQ_C1_DEST_MOD1024;
break;
case 1024:
temp |= DMA_RQ_C1_DEST_MOD512;
break;
case 512:
temp |= DMA_RQ_C1_DEST_MOD256;
break;
case 256:
temp |= DMA_RQ_C1_DEST_MOD128;
break;
case 128:
temp |= DMA_RQ_C1_DEST_MOD64;
break;
case 64:
temp |= DMA_RQ_C1_DEST_MOD32;
break;
case 32:
temp |= DMA_RQ_C1_DEST_MOD16;
break;
default:
dev_dbg(chip->card->dev,
"period size (%d) not supported by HW\n", period_size);
return -EINVAL;
}
snd_cs46xx_poke (chip,WRITEBACK_SCB_ADDR << 2,temp);
return 0;
}
void cs46xx_dsp_destroy_pcm_channel (struct snd_cs46xx * chip,
struct dsp_pcm_channel_descriptor * pcm_channel)
{
struct dsp_spos_instance * ins = chip->dsp_spos_instance;
unsigned long flags;
if (snd_BUG_ON(!pcm_channel->active ||
ins->npcm_channels <= 0 ||
pcm_channel->src_scb->ref_count <= 0))
return;
spin_lock_irqsave(&chip->reg_lock, flags);
pcm_channel->unlinked = 1;
pcm_channel->active = 0;
pcm_channel->private_data = NULL;
pcm_channel->src_scb->ref_count --;
ins->npcm_channels --;
spin_unlock_irqrestore(&chip->reg_lock, flags);
cs46xx_dsp_remove_scb(chip,pcm_channel->pcm_reader_scb);
if (!pcm_channel->src_scb->ref_count) {
cs46xx_dsp_remove_scb(chip,pcm_channel->src_scb);
if (snd_BUG_ON(pcm_channel->src_slot < 0 ||
pcm_channel->src_slot >= DSP_MAX_SRC_NR))
return;
ins->src_scb_slots[pcm_channel->src_slot] = 0;
ins->nsrc_scb --;
}
}
int cs46xx_dsp_pcm_unlink (struct snd_cs46xx * chip,
struct dsp_pcm_channel_descriptor * pcm_channel)
{
unsigned long flags;
if (snd_BUG_ON(!pcm_channel->active ||
chip->dsp_spos_instance->npcm_channels <= 0))
return -EIO;
spin_lock_irqsave(&chip->reg_lock, flags);
if (pcm_channel->unlinked) {
spin_unlock_irqrestore(&chip->reg_lock, flags);
return -EIO;
}
pcm_channel->unlinked = 1;
_dsp_unlink_scb (chip,pcm_channel->pcm_reader_scb);
spin_unlock_irqrestore(&chip->reg_lock, flags);
return 0;
}
int cs46xx_dsp_pcm_link (struct snd_cs46xx * chip,
struct dsp_pcm_channel_descriptor * pcm_channel)
{
struct dsp_spos_instance * ins = chip->dsp_spos_instance;
struct dsp_scb_descriptor * parent_scb;
struct dsp_scb_descriptor * src_scb = pcm_channel->src_scb;
unsigned long flags;
spin_lock_irqsave(&chip->reg_lock, flags);
if (pcm_channel->unlinked == 0) {
spin_unlock_irqrestore(&chip->reg_lock, flags);
return -EIO;
}
parent_scb = src_scb;
if (src_scb->sub_list_ptr != ins->the_null_scb) {
src_scb->sub_list_ptr->parent_scb_ptr = pcm_channel->pcm_reader_scb;
pcm_channel->pcm_reader_scb->next_scb_ptr = src_scb->sub_list_ptr;
}
src_scb->sub_list_ptr = pcm_channel->pcm_reader_scb;
snd_BUG_ON(pcm_channel->pcm_reader_scb->parent_scb_ptr);
pcm_channel->pcm_reader_scb->parent_scb_ptr = parent_scb;
/* update SCB entry in DSP RAM */
cs46xx_dsp_spos_update_scb(chip,pcm_channel->pcm_reader_scb);
/* update parent SCB entry */
cs46xx_dsp_spos_update_scb(chip,parent_scb);
pcm_channel->unlinked = 0;
spin_unlock_irqrestore(&chip->reg_lock, flags);
return 0;
}
struct dsp_scb_descriptor *
cs46xx_add_record_source (struct snd_cs46xx *chip, struct dsp_scb_descriptor * source,
u16 addr, char * scb_name)
{
struct dsp_spos_instance * ins = chip->dsp_spos_instance;
struct dsp_scb_descriptor * parent;
struct dsp_scb_descriptor * pcm_input;
int insert_point;
if (snd_BUG_ON(!ins->record_mixer_scb))
return NULL;
if (ins->record_mixer_scb->sub_list_ptr != ins->the_null_scb) {
parent = find_next_free_scb (chip,ins->record_mixer_scb->sub_list_ptr);
insert_point = SCB_ON_PARENT_NEXT_SCB;
} else {
parent = ins->record_mixer_scb;
insert_point = SCB_ON_PARENT_SUBLIST_SCB;
}
pcm_input = cs46xx_dsp_create_pcm_serial_input_scb(chip,scb_name,addr,
source, parent,
insert_point);
return pcm_input;
}
int cs46xx_src_unlink(struct snd_cs46xx *chip, struct dsp_scb_descriptor * src)
{
unsigned long flags;
if (snd_BUG_ON(!src->parent_scb_ptr))
return -EINVAL;
/* mute SCB */
cs46xx_dsp_scb_set_volume (chip,src,0,0);
spin_lock_irqsave(&chip->reg_lock, flags);
_dsp_unlink_scb (chip,src);
spin_unlock_irqrestore(&chip->reg_lock, flags);
return 0;
}
int cs46xx_src_link(struct snd_cs46xx *chip, struct dsp_scb_descriptor * src)
{
struct dsp_spos_instance * ins = chip->dsp_spos_instance;
struct dsp_scb_descriptor * parent_scb;
if (snd_BUG_ON(src->parent_scb_ptr))
return -EINVAL;
if (snd_BUG_ON(!ins->master_mix_scb))
return -EINVAL;
if (ins->master_mix_scb->sub_list_ptr != ins->the_null_scb) {
parent_scb = find_next_free_scb (chip,ins->master_mix_scb->sub_list_ptr);
parent_scb->next_scb_ptr = src;
} else {
parent_scb = ins->master_mix_scb;
parent_scb->sub_list_ptr = src;
}
src->parent_scb_ptr = parent_scb;
/* update entry in DSP RAM */
cs46xx_dsp_spos_update_scb(chip,parent_scb);
return 0;
}
int cs46xx_dsp_enable_spdif_out (struct snd_cs46xx *chip)
{
struct dsp_spos_instance * ins = chip->dsp_spos_instance;
if ( ! (ins->spdif_status_out & DSP_SPDIF_STATUS_HW_ENABLED) ) {
cs46xx_dsp_enable_spdif_hw (chip);
}
/* dont touch anything if SPDIF is open */
if ( ins->spdif_status_out & DSP_SPDIF_STATUS_PLAYBACK_OPEN) {
/* when cs46xx_iec958_post_close(...) is called it
will call this function if necessary depending on
this bit */
ins->spdif_status_out |= DSP_SPDIF_STATUS_OUTPUT_ENABLED;
return -EBUSY;
}
if (snd_BUG_ON(ins->asynch_tx_scb))
return -EINVAL;
if (snd_BUG_ON(ins->master_mix_scb->next_scb_ptr !=
ins->the_null_scb))
return -EINVAL;
/* reset output snooper sample buffer pointer */
snd_cs46xx_poke (chip, (ins->ref_snoop_scb->address + 2) << 2,
(OUTPUT_SNOOP_BUFFER + 0x10) << 0x10 );
/* The asynch. transfer task */
ins->asynch_tx_scb = cs46xx_dsp_create_asynch_fg_tx_scb(chip,"AsynchFGTxSCB",ASYNCTX_SCB_ADDR,
SPDIFO_SCB_INST,
SPDIFO_IP_OUTPUT_BUFFER1,
ins->master_mix_scb,
SCB_ON_PARENT_NEXT_SCB);
if (!ins->asynch_tx_scb) return -ENOMEM;
ins->spdif_pcm_input_scb = cs46xx_dsp_create_pcm_serial_input_scb(chip,"PCMSerialInput_II",
PCMSERIALINII_SCB_ADDR,
ins->ref_snoop_scb,
ins->asynch_tx_scb,
SCB_ON_PARENT_SUBLIST_SCB);
if (!ins->spdif_pcm_input_scb) return -ENOMEM;
/* monitor state */
ins->spdif_status_out |= DSP_SPDIF_STATUS_OUTPUT_ENABLED;
return 0;
}
int cs46xx_dsp_disable_spdif_out (struct snd_cs46xx *chip)
{
struct dsp_spos_instance * ins = chip->dsp_spos_instance;
/* dont touch anything if SPDIF is open */
if ( ins->spdif_status_out & DSP_SPDIF_STATUS_PLAYBACK_OPEN) {
ins->spdif_status_out &= ~DSP_SPDIF_STATUS_OUTPUT_ENABLED;
return -EBUSY;
}
/* check integrety */
if (snd_BUG_ON(!ins->asynch_tx_scb))
return -EINVAL;
if (snd_BUG_ON(!ins->spdif_pcm_input_scb))
return -EINVAL;
if (snd_BUG_ON(ins->master_mix_scb->next_scb_ptr != ins->asynch_tx_scb))
return -EINVAL;
if (snd_BUG_ON(ins->asynch_tx_scb->parent_scb_ptr !=
ins->master_mix_scb))
return -EINVAL;
cs46xx_dsp_remove_scb (chip,ins->spdif_pcm_input_scb);
cs46xx_dsp_remove_scb (chip,ins->asynch_tx_scb);
ins->spdif_pcm_input_scb = NULL;
ins->asynch_tx_scb = NULL;
/* clear buffer to prevent any undesired noise */
_dsp_clear_sample_buffer(chip,SPDIFO_IP_OUTPUT_BUFFER1,256);
/* monitor state */
ins->spdif_status_out &= ~DSP_SPDIF_STATUS_OUTPUT_ENABLED;
return 0;
}
int cs46xx_iec958_pre_open (struct snd_cs46xx *chip)
{
struct dsp_spos_instance * ins = chip->dsp_spos_instance;
if ( ins->spdif_status_out & DSP_SPDIF_STATUS_OUTPUT_ENABLED ) {
/* remove AsynchFGTxSCB and and PCMSerialInput_II */
cs46xx_dsp_disable_spdif_out (chip);
/* save state */
ins->spdif_status_out |= DSP_SPDIF_STATUS_OUTPUT_ENABLED;
}
/* if not enabled already */
if ( !(ins->spdif_status_out & DSP_SPDIF_STATUS_HW_ENABLED) ) {
cs46xx_dsp_enable_spdif_hw (chip);
}
/* Create the asynch. transfer task for playback */
ins->asynch_tx_scb = cs46xx_dsp_create_asynch_fg_tx_scb(chip,"AsynchFGTxSCB",ASYNCTX_SCB_ADDR,
SPDIFO_SCB_INST,
SPDIFO_IP_OUTPUT_BUFFER1,
ins->master_mix_scb,
SCB_ON_PARENT_NEXT_SCB);
/* set spdif channel status value for streaming */
cs46xx_poke_via_dsp (chip,SP_SPDOUT_CSUV, ins->spdif_csuv_stream);
ins->spdif_status_out |= DSP_SPDIF_STATUS_PLAYBACK_OPEN;
return 0;
}
int cs46xx_iec958_post_close (struct snd_cs46xx *chip)
{
struct dsp_spos_instance * ins = chip->dsp_spos_instance;
if (snd_BUG_ON(!ins->asynch_tx_scb))
return -EINVAL;
ins->spdif_status_out &= ~DSP_SPDIF_STATUS_PLAYBACK_OPEN;
/* restore settings */
cs46xx_poke_via_dsp (chip,SP_SPDOUT_CSUV, ins->spdif_csuv_default);
/* deallocate stuff */
if (ins->spdif_pcm_input_scb != NULL) {
cs46xx_dsp_remove_scb (chip,ins->spdif_pcm_input_scb);
ins->spdif_pcm_input_scb = NULL;
}
cs46xx_dsp_remove_scb (chip,ins->asynch_tx_scb);
ins->asynch_tx_scb = NULL;
/* clear buffer to prevent any undesired noise */
_dsp_clear_sample_buffer(chip,SPDIFO_IP_OUTPUT_BUFFER1,256);
/* restore state */
if ( ins->spdif_status_out & DSP_SPDIF_STATUS_OUTPUT_ENABLED ) {
cs46xx_dsp_enable_spdif_out (chip);
}
return 0;
}
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