Logo Search packages:      
Sourcecode: linux version File versions  Download package

dsp_spos.c

/*
 *   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
 *
 */

/*
 * 2002-07 Benny Sjostrand benny@hostmobility.com
 */


#include <sound/driver.h>
#include <asm/io.h>
#include <linux/delay.h>
#include <linux/pm.h>
#include <linux/init.h>
#include <linux/slab.h>
#include <linux/vmalloc.h>
#include <linux/mutex.h>

#include <sound/core.h>
#include <sound/control.h>
#include <sound/info.h>
#include <sound/asoundef.h>
#include <sound/cs46xx.h>

#include "cs46xx_lib.h"
#include "dsp_spos.h"

static int cs46xx_dsp_async_init (struct snd_cs46xx *chip,
                          struct dsp_scb_descriptor * fg_entry);

static enum wide_opcode wide_opcodes[] = { 
      WIDE_FOR_BEGIN_LOOP,
      WIDE_FOR_BEGIN_LOOP2,
      WIDE_COND_GOTO_ADDR,
      WIDE_COND_GOTO_CALL,
      WIDE_TBEQ_COND_GOTO_ADDR,
      WIDE_TBEQ_COND_CALL_ADDR,
      WIDE_TBEQ_NCOND_GOTO_ADDR,
      WIDE_TBEQ_NCOND_CALL_ADDR,
      WIDE_TBEQ_COND_GOTO1_ADDR,
      WIDE_TBEQ_COND_CALL1_ADDR,
      WIDE_TBEQ_NCOND_GOTOI_ADDR,
      WIDE_TBEQ_NCOND_CALL1_ADDR
};

static int shadow_and_reallocate_code (struct snd_cs46xx * chip, u32 * data, u32 size,
                               u32 overlay_begin_address)
{
      unsigned int i = 0, j, nreallocated = 0;
      u32 hival,loval,address;
      u32 mop_operands,mop_type,wide_op;
      struct dsp_spos_instance * ins = chip->dsp_spos_instance;

      snd_assert( ((size % 2) == 0), return -EINVAL);
  
      while (i < size) {
            loval = data[i++];
            hival = data[i++];

            if (ins->code.offset > 0) {
                  mop_operands = (hival >> 6) & 0x03fff;
                  mop_type = mop_operands >> 10;
      
                  /* check for wide type instruction */
                  if (mop_type == 0 &&
                      (mop_operands & WIDE_LADD_INSTR_MASK) == 0 &&
                      (mop_operands & WIDE_INSTR_MASK) != 0) {
                        wide_op = loval & 0x7f;
                        for (j = 0;j < ARRAY_SIZE(wide_opcodes); ++j) {
                              if (wide_opcodes[j] == wide_op) {
                                    /* need to reallocate instruction */
                                    address  = (hival & 0x00FFF) << 5;
                                    address |=  loval >> 15;
            
                                    snd_printdd("handle_wideop[1]: %05x:%05x addr %04x\n",hival,loval,address);
            
                                    if ( !(address & 0x8000) ) {
                                          address += (ins->code.offset / 2) - overlay_begin_address;
                                    } else {
                                          snd_printdd("handle_wideop[1]: ROM symbol not reallocated\n");
                                    }
            
                                    hival &= 0xFF000;
                                    loval &= 0x07FFF;
            
                                    hival |= ( (address >> 5)  & 0x00FFF);
                                    loval |= ( (address << 15) & 0xF8000);
            
                                    address  = (hival & 0x00FFF) << 5;
                                    address |=  loval >> 15;
            
                                    snd_printdd("handle_wideop:[2] %05x:%05x addr %04x\n",hival,loval,address);            
                                    nreallocated ++;
                              } /* wide_opcodes[j] == wide_op */
                        } /* for */
                  } /* mod_type == 0 ... */
            } /* ins->code.offset > 0 */

            ins->code.data[ins->code.size++] = loval;
            ins->code.data[ins->code.size++] = hival;
      }

      snd_printdd("dsp_spos: %d instructions reallocated\n",nreallocated);
      return nreallocated;
}

static struct dsp_segment_desc * get_segment_desc (struct dsp_module_desc * module, int seg_type)
{
      int i;
      for (i = 0;i < module->nsegments; ++i) {
            if (module->segments[i].segment_type == seg_type) {
                  return (module->segments + i);
            }
      }

      return NULL;
};

static int find_free_symbol_index (struct dsp_spos_instance * ins)
{
      int index = ins->symbol_table.nsymbols,i;

      for (i = ins->symbol_table.highest_frag_index; i < ins->symbol_table.nsymbols; ++i) {
            if (ins->symbol_table.symbols[i].deleted) {
                  index = i;
                  break;
            }
      }

      return index;
}

static int add_symbols (struct snd_cs46xx * chip, struct dsp_module_desc * module)
{
      int i;
      struct dsp_spos_instance * ins = chip->dsp_spos_instance;

      if (module->symbol_table.nsymbols > 0) {
            if (!strcmp(module->symbol_table.symbols[0].symbol_name, "OVERLAYBEGINADDRESS") &&
                module->symbol_table.symbols[0].symbol_type == SYMBOL_CONSTANT ) {
                  module->overlay_begin_address = module->symbol_table.symbols[0].address;
            }
      }

      for (i = 0;i < module->symbol_table.nsymbols; ++i) {
            if (ins->symbol_table.nsymbols == (DSP_MAX_SYMBOLS - 1)) {
                  snd_printk(KERN_ERR "dsp_spos: symbol table is full\n");
                  return -ENOMEM;
            }


            if (cs46xx_dsp_lookup_symbol(chip,
                                   module->symbol_table.symbols[i].symbol_name,
                                   module->symbol_table.symbols[i].symbol_type) == NULL) {

                  ins->symbol_table.symbols[ins->symbol_table.nsymbols] = module->symbol_table.symbols[i];
                  ins->symbol_table.symbols[ins->symbol_table.nsymbols].address += ((ins->code.offset / 2) - module->overlay_begin_address);
                  ins->symbol_table.symbols[ins->symbol_table.nsymbols].module = module;
                  ins->symbol_table.symbols[ins->symbol_table.nsymbols].deleted = 0;

                  if (ins->symbol_table.nsymbols > ins->symbol_table.highest_frag_index) 
                        ins->symbol_table.highest_frag_index = ins->symbol_table.nsymbols;

                  ins->symbol_table.nsymbols++;
            } else {
          /* if (0) printk ("dsp_spos: symbol <%s> duplicated, probably nothing wrong with that (Cirrus?)\n",
                             module->symbol_table.symbols[i].symbol_name); */
            }
      }

      return 0;
}

static struct dsp_symbol_entry *
add_symbol (struct snd_cs46xx * chip, char * symbol_name, u32 address, int type)
{
      struct dsp_spos_instance * ins = chip->dsp_spos_instance;
      struct dsp_symbol_entry * symbol = NULL;
      int index;

      if (ins->symbol_table.nsymbols == (DSP_MAX_SYMBOLS - 1)) {
            snd_printk(KERN_ERR "dsp_spos: symbol table is full\n");
            return NULL;
      }
  
      if (cs46xx_dsp_lookup_symbol(chip,
                             symbol_name,
                             type) != NULL) {
            snd_printk(KERN_ERR "dsp_spos: symbol <%s> duplicated\n", symbol_name);
            return NULL;
      }

      index = find_free_symbol_index (ins);

      strcpy (ins->symbol_table.symbols[index].symbol_name, symbol_name);
      ins->symbol_table.symbols[index].address = address;
      ins->symbol_table.symbols[index].symbol_type = type;
      ins->symbol_table.symbols[index].module = NULL;
      ins->symbol_table.symbols[index].deleted = 0;
      symbol = (ins->symbol_table.symbols + index);

      if (index > ins->symbol_table.highest_frag_index) 
            ins->symbol_table.highest_frag_index = index;

      if (index == ins->symbol_table.nsymbols)
            ins->symbol_table.nsymbols++; /* no frag. in list */

      return symbol;
}

struct dsp_spos_instance *cs46xx_dsp_spos_create (struct snd_cs46xx * chip)
{
      struct dsp_spos_instance * ins = kzalloc(sizeof(struct dsp_spos_instance), GFP_KERNEL);

      if (ins == NULL) 
            return NULL;

      /* better to use vmalloc for this big table */
      ins->symbol_table.nsymbols = 0;
      ins->symbol_table.symbols = vmalloc(sizeof(struct dsp_symbol_entry) *
                                  DSP_MAX_SYMBOLS);
      ins->symbol_table.highest_frag_index = 0;

      if (ins->symbol_table.symbols == NULL) {
            cs46xx_dsp_spos_destroy(chip);
            goto error;
      }

      ins->code.offset = 0;
      ins->code.size = 0;
      ins->code.data = kmalloc(DSP_CODE_BYTE_SIZE, GFP_KERNEL);

      if (ins->code.data == NULL) {
            cs46xx_dsp_spos_destroy(chip);
            goto error;
      }

      ins->nscb = 0;
      ins->ntask = 0;

      ins->nmodules = 0;
      ins->modules = kmalloc(sizeof(struct dsp_module_desc) * DSP_MAX_MODULES, GFP_KERNEL);

      if (ins->modules == NULL) {
            cs46xx_dsp_spos_destroy(chip);
            goto error;
      }

      /* default SPDIF input sample rate
         to 48000 khz */
      ins->spdif_in_sample_rate = 48000;

      /* maximize volume */
      ins->dac_volume_right = 0x8000;
      ins->dac_volume_left = 0x8000;
      ins->spdif_input_volume_right = 0x8000;
      ins->spdif_input_volume_left = 0x8000;

      /* set left and right validity bits and
         default channel status */
      ins->spdif_csuv_default = 
            ins->spdif_csuv_stream =  
       /* byte 0 */  ((unsigned int)_wrap_all_bits(  (SNDRV_PCM_DEFAULT_CON_SPDIF        & 0xff)) << 24) |
       /* byte 1 */  ((unsigned int)_wrap_all_bits( ((SNDRV_PCM_DEFAULT_CON_SPDIF >> 8) & 0xff)) << 16) |
       /* byte 3 */   (unsigned int)_wrap_all_bits(  (SNDRV_PCM_DEFAULT_CON_SPDIF >> 24) & 0xff) |
       /* left and right validity bits */ (1 << 13) | (1 << 12);

      return ins;

error:
      kfree(ins);
      return NULL;
}

void  cs46xx_dsp_spos_destroy (struct snd_cs46xx * chip)
{
      int i;
      struct dsp_spos_instance * ins = chip->dsp_spos_instance;

      snd_assert(ins != NULL, return);

      mutex_lock(&chip->spos_mutex);
      for (i = 0; i < ins->nscb; ++i) {
            if (ins->scbs[i].deleted) continue;

            cs46xx_dsp_proc_free_scb_desc ( (ins->scbs + i) );
      }

      kfree(ins->code.data);
      vfree(ins->symbol_table.symbols);
      kfree(ins->modules);
      kfree(ins);
      mutex_unlock(&chip->spos_mutex);
}

static int dsp_load_parameter(struct snd_cs46xx *chip,
                        struct dsp_segment_desc *parameter)
{
      u32 doffset, dsize;

      if (!parameter) {
            snd_printdd("dsp_spos: module got no parameter segment\n");
            return 0;
      }

      doffset = (parameter->offset * 4 + DSP_PARAMETER_BYTE_OFFSET);
      dsize   = parameter->size * 4;

      snd_printdd("dsp_spos: "
                "downloading parameter data to chip (%08x-%08x)\n",
                doffset,doffset + dsize);
      if (snd_cs46xx_download (chip, parameter->data, doffset, dsize)) {
            snd_printk(KERN_ERR "dsp_spos: "
                     "failed to download parameter data to DSP\n");
            return -EINVAL;
      }
      return 0;
}

static int dsp_load_sample(struct snd_cs46xx *chip,
                     struct dsp_segment_desc *sample)
{
      u32 doffset, dsize;

      if (!sample) {
            snd_printdd("dsp_spos: module got no sample segment\n");
            return 0;
      }

      doffset = (sample->offset * 4  + DSP_SAMPLE_BYTE_OFFSET);
      dsize   =  sample->size * 4;

      snd_printdd("dsp_spos: downloading sample data to chip (%08x-%08x)\n",
                doffset,doffset + dsize);

      if (snd_cs46xx_download (chip,sample->data,doffset,dsize)) {
            snd_printk(KERN_ERR "dsp_spos: failed to sample data to DSP\n");
            return -EINVAL;
      }
      return 0;
}

int cs46xx_dsp_load_module (struct snd_cs46xx * chip, struct dsp_module_desc * module)
{
      struct dsp_spos_instance * ins = chip->dsp_spos_instance;
      struct dsp_segment_desc * code = get_segment_desc (module,SEGTYPE_SP_PROGRAM);
      u32 doffset, dsize;
      int err;

      if (ins->nmodules == DSP_MAX_MODULES - 1) {
            snd_printk(KERN_ERR "dsp_spos: to many modules loaded into DSP\n");
            return -ENOMEM;
      }

      snd_printdd("dsp_spos: loading module %s into DSP\n", module->module_name);
  
      if (ins->nmodules == 0) {
            snd_printdd("dsp_spos: clearing parameter area\n");
            snd_cs46xx_clear_BA1(chip, DSP_PARAMETER_BYTE_OFFSET, DSP_PARAMETER_BYTE_SIZE);
      }
  
      err = dsp_load_parameter(chip, get_segment_desc(module,
                                          SEGTYPE_SP_PARAMETER));
      if (err < 0)
            return err;

      if (ins->nmodules == 0) {
            snd_printdd("dsp_spos: clearing sample area\n");
            snd_cs46xx_clear_BA1(chip, DSP_SAMPLE_BYTE_OFFSET, DSP_SAMPLE_BYTE_SIZE);
      }

      err = dsp_load_sample(chip, get_segment_desc(module,
                                         SEGTYPE_SP_SAMPLE));
      if (err < 0)
            return err;

      if (ins->nmodules == 0) {
            snd_printdd("dsp_spos: clearing code area\n");
            snd_cs46xx_clear_BA1(chip, DSP_CODE_BYTE_OFFSET, DSP_CODE_BYTE_SIZE);
      }

      if (code == NULL) {
            snd_printdd("dsp_spos: module got no code segment\n");
      } else {
            if (ins->code.offset + code->size > DSP_CODE_BYTE_SIZE) {
                  snd_printk(KERN_ERR "dsp_spos: no space available in DSP\n");
                  return -ENOMEM;
            }

            module->load_address = ins->code.offset;
            module->overlay_begin_address = 0x000;

            /* if module has a code segment it must have
               symbol table */
            snd_assert(module->symbol_table.symbols != NULL ,return -ENOMEM);
            if (add_symbols(chip,module)) {
                  snd_printk(KERN_ERR "dsp_spos: failed to load symbol table\n");
                  return -ENOMEM;
            }
    
            doffset = (code->offset * 4 + ins->code.offset * 4 + DSP_CODE_BYTE_OFFSET);
            dsize   = code->size * 4;
            snd_printdd("dsp_spos: downloading code to chip (%08x-%08x)\n",
                      doffset,doffset + dsize);   

            module->nfixups = shadow_and_reallocate_code(chip,code->data,code->size,module->overlay_begin_address);

            if (snd_cs46xx_download (chip,(ins->code.data + ins->code.offset),doffset,dsize)) {
                  snd_printk(KERN_ERR "dsp_spos: failed to download code to DSP\n");
                  return -EINVAL;
            }

            ins->code.offset += code->size;
      }

      /* NOTE: module segments and symbol table must be
         statically allocated. Case that module data is
         not generated by the ospparser */
      ins->modules[ins->nmodules] = *module;
      ins->nmodules++;

      return 0;
}

struct dsp_symbol_entry *
cs46xx_dsp_lookup_symbol (struct snd_cs46xx * chip, char * symbol_name, int symbol_type)
{
      int i;
      struct dsp_spos_instance * ins = chip->dsp_spos_instance;

      for ( i = 0; i < ins->symbol_table.nsymbols; ++i ) {

            if (ins->symbol_table.symbols[i].deleted)
                  continue;

            if (!strcmp(ins->symbol_table.symbols[i].symbol_name,symbol_name) &&
                ins->symbol_table.symbols[i].symbol_type == symbol_type) {
                  return (ins->symbol_table.symbols + i);
            }
      }

#if 0
      printk ("dsp_spos: symbol <%s> type %02x not found\n",
            symbol_name,symbol_type);
#endif

      return NULL;
}


#ifdef CONFIG_PROC_FS
static struct dsp_symbol_entry *
cs46xx_dsp_lookup_symbol_addr (struct snd_cs46xx * chip, u32 address, int symbol_type)
{
      int i;
      struct dsp_spos_instance * ins = chip->dsp_spos_instance;

      for ( i = 0; i < ins->symbol_table.nsymbols; ++i ) {

            if (ins->symbol_table.symbols[i].deleted)
                  continue;

            if (ins->symbol_table.symbols[i].address == address &&
                ins->symbol_table.symbols[i].symbol_type == symbol_type) {
                  return (ins->symbol_table.symbols + i);
            }
      }


      return NULL;
}


static void cs46xx_dsp_proc_symbol_table_read (struct snd_info_entry *entry,
                                     struct snd_info_buffer *buffer)
{
      struct snd_cs46xx *chip = entry->private_data;
      struct dsp_spos_instance * ins = chip->dsp_spos_instance;
      int i;

      snd_iprintf(buffer, "SYMBOLS:\n");
      for ( i = 0; i < ins->symbol_table.nsymbols; ++i ) {
            char *module_str = "system";

            if (ins->symbol_table.symbols[i].deleted)
                  continue;

            if (ins->symbol_table.symbols[i].module != NULL) {
                  module_str = ins->symbol_table.symbols[i].module->module_name;
            }

    
            snd_iprintf(buffer, "%04X <%02X> %s [%s]\n",
                      ins->symbol_table.symbols[i].address,
                      ins->symbol_table.symbols[i].symbol_type,
                      ins->symbol_table.symbols[i].symbol_name,
                      module_str);    
      }
}


static void cs46xx_dsp_proc_modules_read (struct snd_info_entry *entry,
                                struct snd_info_buffer *buffer)
{
      struct snd_cs46xx *chip = entry->private_data;
      struct dsp_spos_instance * ins = chip->dsp_spos_instance;
      int i,j;

      mutex_lock(&chip->spos_mutex);
      snd_iprintf(buffer, "MODULES:\n");
      for ( i = 0; i < ins->nmodules; ++i ) {
            snd_iprintf(buffer, "\n%s:\n", ins->modules[i].module_name);
            snd_iprintf(buffer, "   %d symbols\n", ins->modules[i].symbol_table.nsymbols);
            snd_iprintf(buffer, "   %d fixups\n", ins->modules[i].nfixups);

            for (j = 0; j < ins->modules[i].nsegments; ++ j) {
                  struct dsp_segment_desc * desc = (ins->modules[i].segments + j);
                  snd_iprintf(buffer, "   segment %02x offset %08x size %08x\n",
                            desc->segment_type,desc->offset, desc->size);
            }
      }
      mutex_unlock(&chip->spos_mutex);
}

static void cs46xx_dsp_proc_task_tree_read (struct snd_info_entry *entry,
                                  struct snd_info_buffer *buffer)
{
      struct snd_cs46xx *chip = entry->private_data;
      struct dsp_spos_instance * ins = chip->dsp_spos_instance;
      int i, j, col;
      void __iomem *dst = chip->region.idx[1].remap_addr + DSP_PARAMETER_BYTE_OFFSET;

      mutex_lock(&chip->spos_mutex);
      snd_iprintf(buffer, "TASK TREES:\n");
      for ( i = 0; i < ins->ntask; ++i) {
            snd_iprintf(buffer,"\n%04x %s:\n",ins->tasks[i].address,ins->tasks[i].task_name);

            for (col = 0,j = 0;j < ins->tasks[i].size; j++,col++) {
                  u32 val;
                  if (col == 4) {
                        snd_iprintf(buffer,"\n");
                        col = 0;
                  }
                  val = readl(dst + (ins->tasks[i].address + j) * sizeof(u32));
                  snd_iprintf(buffer,"%08x ",val);
            }
      }

      snd_iprintf(buffer,"\n");  
      mutex_unlock(&chip->spos_mutex);
}

static void cs46xx_dsp_proc_scb_read (struct snd_info_entry *entry,
                              struct snd_info_buffer *buffer)
{
      struct snd_cs46xx *chip = entry->private_data;
      struct dsp_spos_instance * ins = chip->dsp_spos_instance;
      int i;

      mutex_lock(&chip->spos_mutex);
      snd_iprintf(buffer, "SCB's:\n");
      for ( i = 0; i < ins->nscb; ++i) {
            if (ins->scbs[i].deleted)
                  continue;
            snd_iprintf(buffer,"\n%04x %s:\n\n",ins->scbs[i].address,ins->scbs[i].scb_name);

            if (ins->scbs[i].parent_scb_ptr != NULL) {
                  snd_iprintf(buffer,"parent [%s:%04x] ", 
                            ins->scbs[i].parent_scb_ptr->scb_name,
                            ins->scbs[i].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",
                      ins->scbs[i].sub_list_ptr->scb_name,
                      ins->scbs[i].sub_list_ptr->address,
                      ins->scbs[i].next_scb_ptr->scb_name,
                      ins->scbs[i].next_scb_ptr->address,
                      ins->scbs[i].task_entry->symbol_name,
                      ins->scbs[i].task_entry->address);
      }

      snd_iprintf(buffer,"\n");
      mutex_unlock(&chip->spos_mutex);
}

static void cs46xx_dsp_proc_parameter_dump_read (struct snd_info_entry *entry,
                                     struct snd_info_buffer *buffer)
{
      struct snd_cs46xx *chip = entry->private_data;
      /*struct dsp_spos_instance * ins = chip->dsp_spos_instance; */
      unsigned int i, col = 0;
      void __iomem *dst = chip->region.idx[1].remap_addr + DSP_PARAMETER_BYTE_OFFSET;
      struct dsp_symbol_entry * symbol; 

      for (i = 0;i < DSP_PARAMETER_BYTE_SIZE; i += sizeof(u32),col ++) {
            if (col == 4) {
                  snd_iprintf(buffer,"\n");
                  col = 0;
            }

            if ( (symbol = cs46xx_dsp_lookup_symbol_addr (chip,i / sizeof(u32), SYMBOL_PARAMETER)) != NULL) {
                  col = 0;
                  snd_iprintf (buffer,"\n%s:\n",symbol->symbol_name);
            }

            if (col == 0) {
                  snd_iprintf(buffer, "%04X ", i / (unsigned int)sizeof(u32));
            }

            snd_iprintf(buffer,"%08X ",readl(dst + i));
      }
}

static void cs46xx_dsp_proc_sample_dump_read (struct snd_info_entry *entry,
                                    struct snd_info_buffer *buffer)
{
      struct snd_cs46xx *chip = entry->private_data;
      int i,col = 0;
      void __iomem *dst = chip->region.idx[2].remap_addr;

      snd_iprintf(buffer,"PCMREADER:\n");
      for (i = PCM_READER_BUF1;i < PCM_READER_BUF1 + 0x30; i += sizeof(u32),col ++) {
            if (col == 4) {
                  snd_iprintf(buffer,"\n");
                  col = 0;
            }

            if (col == 0) {
                  snd_iprintf(buffer, "%04X ",i);
            }

            snd_iprintf(buffer,"%08X ",readl(dst + i));
      }

      snd_iprintf(buffer,"\nMIX_SAMPLE_BUF1:\n");

      col = 0;
      for (i = MIX_SAMPLE_BUF1;i < MIX_SAMPLE_BUF1 + 0x40; i += sizeof(u32),col ++) {
            if (col == 4) {
                  snd_iprintf(buffer,"\n");
                  col = 0;
            }

            if (col == 0) {
                  snd_iprintf(buffer, "%04X ",i);
            }

            snd_iprintf(buffer,"%08X ",readl(dst + i));
      }

      snd_iprintf(buffer,"\nSRC_TASK_SCB1:\n");
      col = 0;
      for (i = 0x2480 ; i < 0x2480 + 0x40 ; i += sizeof(u32),col ++) {
            if (col == 4) {
                  snd_iprintf(buffer,"\n");
                  col = 0;
            }
            
            if (col == 0) {
                  snd_iprintf(buffer, "%04X ",i);
            }

            snd_iprintf(buffer,"%08X ",readl(dst + i));
      }


      snd_iprintf(buffer,"\nSPDIFO_BUFFER:\n");
      col = 0;
      for (i = SPDIFO_IP_OUTPUT_BUFFER1;i < SPDIFO_IP_OUTPUT_BUFFER1 + 0x30; i += sizeof(u32),col ++) {
            if (col == 4) {
                  snd_iprintf(buffer,"\n");
                  col = 0;
            }

            if (col == 0) {
                  snd_iprintf(buffer, "%04X ",i);
            }

            snd_iprintf(buffer,"%08X ",readl(dst + i));
      }

      snd_iprintf(buffer,"\n...\n");
      col = 0;

      for (i = SPDIFO_IP_OUTPUT_BUFFER1+0xD0;i < SPDIFO_IP_OUTPUT_BUFFER1 + 0x110; i += sizeof(u32),col ++) {
            if (col == 4) {
                  snd_iprintf(buffer,"\n");
                  col = 0;
            }

            if (col == 0) {
                  snd_iprintf(buffer, "%04X ",i);
            }

            snd_iprintf(buffer,"%08X ",readl(dst + i));
      }


      snd_iprintf(buffer,"\nOUTPUT_SNOOP:\n");
      col = 0;
      for (i = OUTPUT_SNOOP_BUFFER;i < OUTPUT_SNOOP_BUFFER + 0x40; i += sizeof(u32),col ++) {
            if (col == 4) {
                  snd_iprintf(buffer,"\n");
                  col = 0;
            }

            if (col == 0) {
                  snd_iprintf(buffer, "%04X ",i);
            }

            snd_iprintf(buffer,"%08X ",readl(dst + i));
      }

      snd_iprintf(buffer,"\nCODEC_INPUT_BUF1: \n");
      col = 0;
      for (i = CODEC_INPUT_BUF1;i < CODEC_INPUT_BUF1 + 0x40; i += sizeof(u32),col ++) {
            if (col == 4) {
                  snd_iprintf(buffer,"\n");
                  col = 0;
            }

            if (col == 0) {
                  snd_iprintf(buffer, "%04X ",i);
            }

            snd_iprintf(buffer,"%08X ",readl(dst + i));
      }
#if 0
      snd_iprintf(buffer,"\nWRITE_BACK_BUF1: \n");
      col = 0;
      for (i = WRITE_BACK_BUF1;i < WRITE_BACK_BUF1 + 0x40; i += sizeof(u32),col ++) {
            if (col == 4) {
                  snd_iprintf(buffer,"\n");
                  col = 0;
            }

            if (col == 0) {
                  snd_iprintf(buffer, "%04X ",i);
            }

            snd_iprintf(buffer,"%08X ",readl(dst + i));
      }
#endif

      snd_iprintf(buffer,"\nSPDIFI_IP_OUTPUT_BUFFER1: \n");
      col = 0;
      for (i = SPDIFI_IP_OUTPUT_BUFFER1;i < SPDIFI_IP_OUTPUT_BUFFER1 + 0x80; i += sizeof(u32),col ++) {
            if (col == 4) {
                  snd_iprintf(buffer,"\n");
                  col = 0;
            }

            if (col == 0) {
                  snd_iprintf(buffer, "%04X ",i);
            }
            
            snd_iprintf(buffer,"%08X ",readl(dst + i));
      }
      snd_iprintf(buffer,"\n");
}

int cs46xx_dsp_proc_init (struct snd_card *card, struct snd_cs46xx *chip)
{
      struct snd_info_entry *entry;
      struct dsp_spos_instance * ins = chip->dsp_spos_instance;
      int i;

      ins->snd_card = card;

      if ((entry = snd_info_create_card_entry(card, "dsp", card->proc_root)) != NULL) {
            entry->content = SNDRV_INFO_CONTENT_TEXT;
            entry->mode = S_IFDIR | S_IRUGO | S_IXUGO;
      
            if (snd_info_register(entry) < 0) {
                  snd_info_free_entry(entry);
                  entry = NULL;
            }
      }

      ins->proc_dsp_dir = entry;

      if (!ins->proc_dsp_dir)
            return -ENOMEM;

      if ((entry = snd_info_create_card_entry(card, "spos_symbols", ins->proc_dsp_dir)) != NULL) {
            entry->content = SNDRV_INFO_CONTENT_TEXT;
            entry->private_data = chip;
            entry->mode = S_IFREG | S_IRUGO | S_IWUSR;
            entry->c.text.read = cs46xx_dsp_proc_symbol_table_read;
            if (snd_info_register(entry) < 0) {
                  snd_info_free_entry(entry);
                  entry = NULL;
            }
      }
      ins->proc_sym_info_entry = entry;
    
      if ((entry = snd_info_create_card_entry(card, "spos_modules", ins->proc_dsp_dir)) != NULL) {
            entry->content = SNDRV_INFO_CONTENT_TEXT;
            entry->private_data = chip;
            entry->mode = S_IFREG | S_IRUGO | S_IWUSR;
            entry->c.text.read = cs46xx_dsp_proc_modules_read;
            if (snd_info_register(entry) < 0) {
                  snd_info_free_entry(entry);
                  entry = NULL;
            }
      }
      ins->proc_modules_info_entry = entry;

      if ((entry = snd_info_create_card_entry(card, "parameter", ins->proc_dsp_dir)) != NULL) {
            entry->content = SNDRV_INFO_CONTENT_TEXT;
            entry->private_data = chip;
            entry->mode = S_IFREG | S_IRUGO | S_IWUSR;
            entry->c.text.read = cs46xx_dsp_proc_parameter_dump_read;
            if (snd_info_register(entry) < 0) {
                  snd_info_free_entry(entry);
                  entry = NULL;
            }
      }
      ins->proc_parameter_dump_info_entry = entry;

      if ((entry = snd_info_create_card_entry(card, "sample", ins->proc_dsp_dir)) != NULL) {
            entry->content = SNDRV_INFO_CONTENT_TEXT;
            entry->private_data = chip;
            entry->mode = S_IFREG | S_IRUGO | S_IWUSR;
            entry->c.text.read = cs46xx_dsp_proc_sample_dump_read;
            if (snd_info_register(entry) < 0) {
                  snd_info_free_entry(entry);
                  entry = NULL;
            }
      }
      ins->proc_sample_dump_info_entry = entry;

      if ((entry = snd_info_create_card_entry(card, "task_tree", ins->proc_dsp_dir)) != NULL) {
            entry->content = SNDRV_INFO_CONTENT_TEXT;
            entry->private_data = chip;
            entry->mode = S_IFREG | S_IRUGO | S_IWUSR;
            entry->c.text.read = cs46xx_dsp_proc_task_tree_read;
            if (snd_info_register(entry) < 0) {
                  snd_info_free_entry(entry);
                  entry = NULL;
            }
      }
      ins->proc_task_info_entry = entry;

      if ((entry = snd_info_create_card_entry(card, "scb_info", ins->proc_dsp_dir)) != NULL) {
            entry->content = SNDRV_INFO_CONTENT_TEXT;
            entry->private_data = chip;
            entry->mode = S_IFREG | S_IRUGO | S_IWUSR;
            entry->c.text.read = cs46xx_dsp_proc_scb_read;
            if (snd_info_register(entry) < 0) {
                  snd_info_free_entry(entry);
                  entry = NULL;
            }
      }
      ins->proc_scb_info_entry = entry;

      mutex_lock(&chip->spos_mutex);
      /* register/update SCB's entries on proc */
      for (i = 0; i < ins->nscb; ++i) {
            if (ins->scbs[i].deleted) continue;

            cs46xx_dsp_proc_register_scb_desc (chip, (ins->scbs + i));
      }
      mutex_unlock(&chip->spos_mutex);

      return 0;
}

int cs46xx_dsp_proc_done (struct snd_cs46xx *chip)
{
      struct dsp_spos_instance * ins = chip->dsp_spos_instance;
      int i;

      snd_info_free_entry(ins->proc_sym_info_entry);
      ins->proc_sym_info_entry = NULL;

      snd_info_free_entry(ins->proc_modules_info_entry);
      ins->proc_modules_info_entry = NULL;

      snd_info_free_entry(ins->proc_parameter_dump_info_entry);
      ins->proc_parameter_dump_info_entry = NULL;

      snd_info_free_entry(ins->proc_sample_dump_info_entry);
      ins->proc_sample_dump_info_entry = NULL;

      snd_info_free_entry(ins->proc_scb_info_entry);
      ins->proc_scb_info_entry = NULL;

      snd_info_free_entry(ins->proc_task_info_entry);
      ins->proc_task_info_entry = NULL;

      mutex_lock(&chip->spos_mutex);
      for (i = 0; i < ins->nscb; ++i) {
            if (ins->scbs[i].deleted) continue;
            cs46xx_dsp_proc_free_scb_desc ( (ins->scbs + i) );
      }
      mutex_unlock(&chip->spos_mutex);

      snd_info_free_entry(ins->proc_dsp_dir);
      ins->proc_dsp_dir = NULL;

      return 0;
}
#endif /* CONFIG_PROC_FS */

static int debug_tree;
static void _dsp_create_task_tree (struct snd_cs46xx *chip, u32 * task_data,
                           u32  dest, int size)
{
      void __iomem *spdst = chip->region.idx[1].remap_addr + 
            DSP_PARAMETER_BYTE_OFFSET + dest * sizeof(u32);
      int i;

      for (i = 0; i < size; ++i) {
            if (debug_tree) printk ("addr %p, val %08x\n",spdst,task_data[i]);
            writel(task_data[i],spdst);
            spdst += sizeof(u32);
      }
}

static int debug_scb;
static void _dsp_create_scb (struct snd_cs46xx *chip, u32 * scb_data, u32 dest)
{
      void __iomem *spdst = chip->region.idx[1].remap_addr + 
            DSP_PARAMETER_BYTE_OFFSET + dest * sizeof(u32);
      int i;

      for (i = 0; i < 0x10; ++i) {
            if (debug_scb) printk ("addr %p, val %08x\n",spdst,scb_data[i]);
            writel(scb_data[i],spdst);
            spdst += sizeof(u32);
      }
}

static int find_free_scb_index (struct dsp_spos_instance * ins)
{
      int index = ins->nscb, i;

      for (i = ins->scb_highest_frag_index; i < ins->nscb; ++i) {
            if (ins->scbs[i].deleted) {
                  index = i;
                  break;
            }
      }

      return index;
}

static struct dsp_scb_descriptor * _map_scb (struct snd_cs46xx *chip, char * name, u32 dest)
{
      struct dsp_spos_instance * ins = chip->dsp_spos_instance;
      struct dsp_scb_descriptor * desc = NULL;
      int index;

      if (ins->nscb == DSP_MAX_SCB_DESC - 1) {
            snd_printk(KERN_ERR "dsp_spos: got no place for other SCB\n");
            return NULL;
      }

      index = find_free_scb_index (ins);

      strcpy(ins->scbs[index].scb_name, name);
      ins->scbs[index].address = dest;
      ins->scbs[index].index = index;
      ins->scbs[index].proc_info = NULL;
      ins->scbs[index].ref_count = 1;
      ins->scbs[index].deleted = 0;
      spin_lock_init(&ins->scbs[index].lock);

      desc = (ins->scbs + index);
      ins->scbs[index].scb_symbol = add_symbol (chip, name, dest, SYMBOL_PARAMETER);

      if (index > ins->scb_highest_frag_index)
            ins->scb_highest_frag_index = index;

      if (index == ins->nscb)
            ins->nscb++;

      return desc;
}

static struct dsp_task_descriptor *
_map_task_tree (struct snd_cs46xx *chip, char * name, u32 dest, u32 size)
{
      struct dsp_spos_instance * ins = chip->dsp_spos_instance;
      struct dsp_task_descriptor * desc = NULL;

      if (ins->ntask == DSP_MAX_TASK_DESC - 1) {
            snd_printk(KERN_ERR "dsp_spos: got no place for other TASK\n");
            return NULL;
      }

      if (name)
            strcpy(ins->tasks[ins->ntask].task_name, name);
      else
            strcpy(ins->tasks[ins->ntask].task_name, "(NULL)");
      ins->tasks[ins->ntask].address = dest;
      ins->tasks[ins->ntask].size = size;

      /* quick find in list */
      ins->tasks[ins->ntask].index = ins->ntask;
      desc = (ins->tasks + ins->ntask);
      ins->ntask++;

      if (name)
            add_symbol (chip,name,dest,SYMBOL_PARAMETER);
      return desc;
}

struct dsp_scb_descriptor *
cs46xx_dsp_create_scb (struct snd_cs46xx *chip, char * name, u32 * scb_data, u32 dest)
{
      struct dsp_scb_descriptor * desc;

      desc = _map_scb (chip,name,dest);
      if (desc) {
            desc->data = scb_data;
            _dsp_create_scb(chip,scb_data,dest);
      } else {
            snd_printk(KERN_ERR "dsp_spos: failed to map SCB\n");
      }

      return desc;
}


static struct dsp_task_descriptor *
cs46xx_dsp_create_task_tree (struct snd_cs46xx *chip, char * name, u32 * task_data,
                       u32 dest, int size)
{
      struct dsp_task_descriptor * desc;

      desc = _map_task_tree (chip,name,dest,size);
      if (desc) {
            desc->data = task_data;
            _dsp_create_task_tree(chip,task_data,dest,size);
      } else {
            snd_printk(KERN_ERR "dsp_spos: failed to map TASK\n");
      }

      return desc;
}

int cs46xx_dsp_scb_and_task_init (struct snd_cs46xx *chip)
{
      struct dsp_spos_instance * ins = chip->dsp_spos_instance;
      struct dsp_symbol_entry * fg_task_tree_header_code;
      struct dsp_symbol_entry * task_tree_header_code;
      struct dsp_symbol_entry * task_tree_thread;
      struct dsp_symbol_entry * null_algorithm;
      struct dsp_symbol_entry * magic_snoop_task;

      struct dsp_scb_descriptor * timing_master_scb;
      struct dsp_scb_descriptor * codec_out_scb;
      struct dsp_scb_descriptor * codec_in_scb;
      struct dsp_scb_descriptor * src_task_scb;
      struct dsp_scb_descriptor * master_mix_scb;
      struct dsp_scb_descriptor * rear_mix_scb;
      struct dsp_scb_descriptor * record_mix_scb;
      struct dsp_scb_descriptor * write_back_scb;
      struct dsp_scb_descriptor * vari_decimate_scb;
      struct dsp_scb_descriptor * rear_codec_out_scb;
      struct dsp_scb_descriptor * clfe_codec_out_scb;
      struct dsp_scb_descriptor * magic_snoop_scb;
      
      int fifo_addr, fifo_span, valid_slots;

      static struct dsp_spos_control_block sposcb = {
            /* 0 */ HFG_TREE_SCB,HFG_STACK,
            /* 1 */ SPOSCB_ADDR,BG_TREE_SCB_ADDR,
            /* 2 */ DSP_SPOS_DC,0,
            /* 3 */ DSP_SPOS_DC,DSP_SPOS_DC,
            /* 4 */ 0,0,
            /* 5 */ DSP_SPOS_UU,0,
            /* 6 */ FG_TASK_HEADER_ADDR,0,
            /* 7 */ 0,0,
            /* 8 */ DSP_SPOS_UU,DSP_SPOS_DC,
            /* 9 */ 0,
            /* A */ 0,HFG_FIRST_EXECUTE_MODE,
            /* B */ DSP_SPOS_UU,DSP_SPOS_UU,
            /* C */ DSP_SPOS_DC_DC,
            /* D */ DSP_SPOS_DC_DC,
            /* E */ DSP_SPOS_DC_DC,
            /* F */ DSP_SPOS_DC_DC
      };

      cs46xx_dsp_create_task_tree(chip, "sposCB", (u32 *)&sposcb, SPOSCB_ADDR, 0x10);

      null_algorithm  = cs46xx_dsp_lookup_symbol(chip, "NULLALGORITHM", SYMBOL_CODE);
      if (null_algorithm == NULL) {
            snd_printk(KERN_ERR "dsp_spos: symbol NULLALGORITHM not found\n");
            return -EIO;
      }

      fg_task_tree_header_code = cs46xx_dsp_lookup_symbol(chip, "FGTASKTREEHEADERCODE", SYMBOL_CODE);  
      if (fg_task_tree_header_code == NULL) {
            snd_printk(KERN_ERR "dsp_spos: symbol FGTASKTREEHEADERCODE not found\n");
            return -EIO;
      }

      task_tree_header_code = cs46xx_dsp_lookup_symbol(chip, "TASKTREEHEADERCODE", SYMBOL_CODE);  
      if (task_tree_header_code == NULL) {
            snd_printk(KERN_ERR "dsp_spos: symbol TASKTREEHEADERCODE not found\n");
            return -EIO;
      }
  
      task_tree_thread = cs46xx_dsp_lookup_symbol(chip, "TASKTREETHREAD", SYMBOL_CODE);
      if (task_tree_thread == NULL) {
            snd_printk(KERN_ERR "dsp_spos: symbol TASKTREETHREAD not found\n");
            return -EIO;
      }

      magic_snoop_task = cs46xx_dsp_lookup_symbol(chip, "MAGICSNOOPTASK", SYMBOL_CODE);
      if (magic_snoop_task == NULL) {
            snd_printk(KERN_ERR "dsp_spos: symbol MAGICSNOOPTASK not found\n");
            return -EIO;
      }
  
      {
            /* create the null SCB */
            static struct dsp_generic_scb null_scb = {
                  { 0, 0, 0, 0 },
                  { 0, 0, 0, 0, 0 },
                  NULL_SCB_ADDR, NULL_SCB_ADDR,
                  0, 0, 0, 0, 0,
                  {
                        0,0,
                        0,0,
                  }
            };

            null_scb.entry_point = null_algorithm->address;
            ins->the_null_scb = cs46xx_dsp_create_scb(chip, "nullSCB", (u32 *)&null_scb, NULL_SCB_ADDR);
            ins->the_null_scb->task_entry = null_algorithm;
            ins->the_null_scb->sub_list_ptr = ins->the_null_scb;
            ins->the_null_scb->next_scb_ptr = ins->the_null_scb;
            ins->the_null_scb->parent_scb_ptr = NULL;
            cs46xx_dsp_proc_register_scb_desc (chip,ins->the_null_scb);
      }

      {
            /* setup foreground task tree */
            static struct dsp_task_tree_control_block fg_task_tree_hdr =  {
                  { FG_TASK_HEADER_ADDR | (DSP_SPOS_DC << 0x10),
                    DSP_SPOS_DC_DC,
                    DSP_SPOS_DC_DC,
                    0x0000,DSP_SPOS_DC,
                    DSP_SPOS_DC, DSP_SPOS_DC,
                    DSP_SPOS_DC_DC,
                    DSP_SPOS_DC_DC,
                    DSP_SPOS_DC_DC,
                    DSP_SPOS_DC,DSP_SPOS_DC },
    
                  {
                        BG_TREE_SCB_ADDR,TIMINGMASTER_SCB_ADDR, 
                        0,
                        FG_TASK_HEADER_ADDR + TCBData,                  
                  },

                  {    
                        4,0,
                        1,0,
                        2,SPOSCB_ADDR + HFGFlags,
                        0,0,
                        FG_TASK_HEADER_ADDR + TCBContextBlk,FG_STACK
                  },

                  {
                        DSP_SPOS_DC,0,
                        DSP_SPOS_DC,DSP_SPOS_DC,
                        DSP_SPOS_DC,DSP_SPOS_DC,
                        DSP_SPOS_DC,DSP_SPOS_DC,
                        DSP_SPOS_DC,DSP_SPOS_DC,
                        DSP_SPOS_DCDC,
                        DSP_SPOS_UU,1,
                        DSP_SPOS_DCDC,
                        DSP_SPOS_DCDC,
                        DSP_SPOS_DCDC,
                        DSP_SPOS_DCDC,
                        DSP_SPOS_DCDC,
                        DSP_SPOS_DCDC,
                        DSP_SPOS_DCDC,
                        DSP_SPOS_DCDC,
                        DSP_SPOS_DCDC,
                        DSP_SPOS_DCDC,
                        DSP_SPOS_DCDC,
                        DSP_SPOS_DCDC,
                        DSP_SPOS_DCDC,
                        DSP_SPOS_DCDC,
                        DSP_SPOS_DCDC,
                        DSP_SPOS_DCDC,
                        DSP_SPOS_DCDC,
                        DSP_SPOS_DCDC,
                        DSP_SPOS_DCDC,
                        DSP_SPOS_DCDC,
                        DSP_SPOS_DCDC,
                        DSP_SPOS_DCDC,
                        DSP_SPOS_DCDC,
                        DSP_SPOS_DCDC,
                        DSP_SPOS_DCDC,
                        DSP_SPOS_DCDC,
                        DSP_SPOS_DCDC,
                        DSP_SPOS_DCDC 
                  },                                               
                  { 
                        FG_INTERVAL_TIMER_PERIOD,DSP_SPOS_UU,
                        0,0
                  }
            };

            fg_task_tree_hdr.links.entry_point = fg_task_tree_header_code->address;
            fg_task_tree_hdr.context_blk.stack0 = task_tree_thread->address;
            cs46xx_dsp_create_task_tree(chip,"FGtaskTreeHdr",(u32 *)&fg_task_tree_hdr,FG_TASK_HEADER_ADDR,0x35);
      }


      {
            /* setup foreground task tree */
            static struct dsp_task_tree_control_block bg_task_tree_hdr =  {
                  { DSP_SPOS_DC_DC,
                    DSP_SPOS_DC_DC,
                    DSP_SPOS_DC_DC,
                    DSP_SPOS_DC, DSP_SPOS_DC,
                    DSP_SPOS_DC, DSP_SPOS_DC,
                    DSP_SPOS_DC_DC,
                    DSP_SPOS_DC_DC,
                    DSP_SPOS_DC_DC,
                    DSP_SPOS_DC,DSP_SPOS_DC },
    
                  {
                        NULL_SCB_ADDR,NULL_SCB_ADDR,  /* Set up the background to do nothing */
                        0,
                        BG_TREE_SCB_ADDR + TCBData,
                  },

                  {    
                        9999,0,
                        0,1,
                        0,SPOSCB_ADDR + HFGFlags,
                        0,0,
                        BG_TREE_SCB_ADDR + TCBContextBlk,BG_STACK
                  },

                  {
                        DSP_SPOS_DC,0,
                        DSP_SPOS_DC,DSP_SPOS_DC,
                        DSP_SPOS_DC,DSP_SPOS_DC,
                        DSP_SPOS_DC,DSP_SPOS_DC,
                        DSP_SPOS_DC,DSP_SPOS_DC,
                        DSP_SPOS_DCDC,
                        DSP_SPOS_UU,1,
                        DSP_SPOS_DCDC,
                        DSP_SPOS_DCDC,
                        DSP_SPOS_DCDC,
                        DSP_SPOS_DCDC,
                        DSP_SPOS_DCDC,
                        DSP_SPOS_DCDC,
                        DSP_SPOS_DCDC,
                        DSP_SPOS_DCDC,
                        DSP_SPOS_DCDC,
                        DSP_SPOS_DCDC,
                        DSP_SPOS_DCDC,
                        DSP_SPOS_DCDC,
                        DSP_SPOS_DCDC,
                        DSP_SPOS_DCDC,
                        DSP_SPOS_DCDC,
                        DSP_SPOS_DCDC,
                        DSP_SPOS_DCDC,
                        DSP_SPOS_DCDC,
                        DSP_SPOS_DCDC,
                        DSP_SPOS_DCDC,
                        DSP_SPOS_DCDC,
                        DSP_SPOS_DCDC,
                        DSP_SPOS_DCDC,
                        DSP_SPOS_DCDC,
                        DSP_SPOS_DCDC,
                        DSP_SPOS_DCDC,
                        DSP_SPOS_DCDC,
                        DSP_SPOS_DCDC 
                  },                                               
                  { 
                        BG_INTERVAL_TIMER_PERIOD,DSP_SPOS_UU,
                        0,0
                  }
            };

            bg_task_tree_hdr.links.entry_point = task_tree_header_code->address;
            bg_task_tree_hdr.context_blk.stack0 = task_tree_thread->address;
            cs46xx_dsp_create_task_tree(chip,"BGtaskTreeHdr",(u32 *)&bg_task_tree_hdr,BG_TREE_SCB_ADDR,0x35);
      }

      /* create timing master SCB */
      timing_master_scb = cs46xx_dsp_create_timing_master_scb(chip);

      /* create the CODEC output task */
      codec_out_scb = cs46xx_dsp_create_codec_out_scb(chip,"CodecOutSCB_I",0x0010,0x0000,
                                          MASTERMIX_SCB_ADDR,
                                          CODECOUT_SCB_ADDR,timing_master_scb,
                                          SCB_ON_PARENT_SUBLIST_SCB);

      if (!codec_out_scb) goto _fail_end;
      /* create the master mix SCB */
      master_mix_scb = cs46xx_dsp_create_mix_only_scb(chip,"MasterMixSCB",
                                          MIX_SAMPLE_BUF1,MASTERMIX_SCB_ADDR,
                                          codec_out_scb,
                                          SCB_ON_PARENT_SUBLIST_SCB);
      ins->master_mix_scb = master_mix_scb;

      if (!master_mix_scb) goto _fail_end;

      /* create codec in */
      codec_in_scb = cs46xx_dsp_create_codec_in_scb(chip,"CodecInSCB",0x0010,0x00A0,
                                          CODEC_INPUT_BUF1,
                                          CODECIN_SCB_ADDR,codec_out_scb,
                                          SCB_ON_PARENT_NEXT_SCB);
      if (!codec_in_scb) goto _fail_end;
      ins->codec_in_scb = codec_in_scb;

      /* create write back scb */
      write_back_scb = cs46xx_dsp_create_mix_to_ostream_scb(chip,"WriteBackSCB",
                                                WRITE_BACK_BUF1,WRITE_BACK_SPB,
                                                WRITEBACK_SCB_ADDR,
                                                timing_master_scb,
                                                SCB_ON_PARENT_NEXT_SCB);
      if (!write_back_scb) goto _fail_end;

      {
            static struct dsp_mix2_ostream_spb mix2_ostream_spb = {
                  0x00020000,
                  0x0000ffff
            };
    
            if (!cs46xx_dsp_create_task_tree(chip, NULL,
                                     (u32 *)&mix2_ostream_spb,
                                     WRITE_BACK_SPB, 2))
                  goto _fail_end;
      }

      /* input sample converter */
      vari_decimate_scb = cs46xx_dsp_create_vari_decimate_scb(chip,"VariDecimateSCB",
                                                VARI_DECIMATE_BUF0,
                                                VARI_DECIMATE_BUF1,
                                                VARIDECIMATE_SCB_ADDR,
                                                write_back_scb,
                                                SCB_ON_PARENT_SUBLIST_SCB);
      if (!vari_decimate_scb) goto _fail_end;

      /* create the record mixer SCB */
      record_mix_scb = cs46xx_dsp_create_mix_only_scb(chip,"RecordMixerSCB",
                                          MIX_SAMPLE_BUF2,
                                          RECORD_MIXER_SCB_ADDR,
                                          vari_decimate_scb,
                                          SCB_ON_PARENT_SUBLIST_SCB);
      ins->record_mixer_scb = record_mix_scb;

      if (!record_mix_scb) goto _fail_end;

      valid_slots = snd_cs46xx_peekBA0(chip, BA0_ACOSV);

      snd_assert (chip->nr_ac97_codecs == 1 || chip->nr_ac97_codecs == 2);

      if (chip->nr_ac97_codecs == 1) {
            /* output on slot 5 and 11 
               on primary CODEC */
            fifo_addr = 0x20;
            fifo_span = 0x60;

            /* enable slot 5 and 11 */
            valid_slots |= ACOSV_SLV5 | ACOSV_SLV11;
      } else {
            /* output on slot 7 and 8 
               on secondary CODEC */
            fifo_addr = 0x40;
            fifo_span = 0x10;

            /* enable slot 7 and 8 */
            valid_slots |= ACOSV_SLV7 | ACOSV_SLV8;
      }
      /* create CODEC tasklet for rear speakers output*/
      rear_codec_out_scb = cs46xx_dsp_create_codec_out_scb(chip,"CodecOutSCB_Rear",fifo_span,fifo_addr,
                                               REAR_MIXER_SCB_ADDR,
                                               REAR_CODECOUT_SCB_ADDR,codec_in_scb,
                                               SCB_ON_PARENT_NEXT_SCB);
      if (!rear_codec_out_scb) goto _fail_end;
      
      
      /* create the rear PCM channel  mixer SCB */
      rear_mix_scb = cs46xx_dsp_create_mix_only_scb(chip,"RearMixerSCB",
                                          MIX_SAMPLE_BUF3,
                                          REAR_MIXER_SCB_ADDR,
                                          rear_codec_out_scb,
                                          SCB_ON_PARENT_SUBLIST_SCB);
      ins->rear_mix_scb = rear_mix_scb;
      if (!rear_mix_scb) goto _fail_end;
      
      if (chip->nr_ac97_codecs == 2) {
            /* create CODEC tasklet for rear Center/LFE output 
               slot 6 and 9 on seconadry CODEC */
            clfe_codec_out_scb = cs46xx_dsp_create_codec_out_scb(chip,"CodecOutSCB_CLFE",0x0030,0x0030,
                                                     CLFE_MIXER_SCB_ADDR,
                                                     CLFE_CODEC_SCB_ADDR,
                                                     rear_codec_out_scb,
                                                     SCB_ON_PARENT_NEXT_SCB);
            if (!clfe_codec_out_scb) goto _fail_end;
            
            
            /* create the rear PCM channel  mixer SCB */
            ins->center_lfe_mix_scb = cs46xx_dsp_create_mix_only_scb(chip,"CLFEMixerSCB",
                                                       MIX_SAMPLE_BUF4,
                                                       CLFE_MIXER_SCB_ADDR,
                                                       clfe_codec_out_scb,
                                                       SCB_ON_PARENT_SUBLIST_SCB);
            if (!ins->center_lfe_mix_scb) goto _fail_end;

            /* enable slot 6 and 9 */
            valid_slots |= ACOSV_SLV6 | ACOSV_SLV9;
      } else {
            clfe_codec_out_scb = rear_codec_out_scb;
            ins->center_lfe_mix_scb = rear_mix_scb;
      }

      /* enable slots depending on CODEC configuration */
      snd_cs46xx_pokeBA0(chip, BA0_ACOSV, valid_slots);

      /* the magic snooper */
      magic_snoop_scb = cs46xx_dsp_create_magic_snoop_scb (chip,"MagicSnoopSCB_I",OUTPUTSNOOP_SCB_ADDR,
                                               OUTPUT_SNOOP_BUFFER,
                                               codec_out_scb,
                                               clfe_codec_out_scb,
                                               SCB_ON_PARENT_NEXT_SCB);

    
      if (!magic_snoop_scb) goto _fail_end;
      ins->ref_snoop_scb = magic_snoop_scb;

      /* SP IO access */
      if (!cs46xx_dsp_create_spio_write_scb(chip,"SPIOWriteSCB",SPIOWRITE_SCB_ADDR,
                                    magic_snoop_scb,
                                    SCB_ON_PARENT_NEXT_SCB))
            goto _fail_end;

      /* SPDIF input sampel rate converter */
      src_task_scb = cs46xx_dsp_create_src_task_scb(chip,"SrcTaskSCB_SPDIFI",
                                          ins->spdif_in_sample_rate,
                                          SRC_OUTPUT_BUF1,
                                          SRC_DELAY_BUF1,SRCTASK_SCB_ADDR,
                                          master_mix_scb,
                                          SCB_ON_PARENT_SUBLIST_SCB,1);

      if (!src_task_scb) goto _fail_end;
      cs46xx_src_unlink(chip,src_task_scb);

      /* NOTE: when we now how to detect the SPDIF input
         sample rate we will use this SRC to adjust it */
      ins->spdif_in_src = src_task_scb;

      cs46xx_dsp_async_init(chip,timing_master_scb);
      return 0;

 _fail_end:
      snd_printk(KERN_ERR "dsp_spos: failed to setup SCB's in DSP\n");
      return -EINVAL;
}

static int cs46xx_dsp_async_init (struct snd_cs46xx *chip,
                          struct dsp_scb_descriptor * fg_entry)
{
      struct dsp_spos_instance * ins = chip->dsp_spos_instance;
      struct dsp_symbol_entry * s16_async_codec_input_task;
      struct dsp_symbol_entry * spdifo_task;
      struct dsp_symbol_entry * spdifi_task;
      struct dsp_scb_descriptor * spdifi_scb_desc, * spdifo_scb_desc, * async_codec_scb_desc;

      s16_async_codec_input_task = cs46xx_dsp_lookup_symbol(chip, "S16_ASYNCCODECINPUTTASK", SYMBOL_CODE);
      if (s16_async_codec_input_task == NULL) {
            snd_printk(KERN_ERR "dsp_spos: symbol S16_ASYNCCODECINPUTTASK not found\n");
            return -EIO;
      }
      spdifo_task = cs46xx_dsp_lookup_symbol(chip, "SPDIFOTASK", SYMBOL_CODE);
      if (spdifo_task == NULL) {
            snd_printk(KERN_ERR "dsp_spos: symbol SPDIFOTASK not found\n");
            return -EIO;
      }

      spdifi_task = cs46xx_dsp_lookup_symbol(chip, "SPDIFITASK", SYMBOL_CODE);
      if (spdifi_task == NULL) {
            snd_printk(KERN_ERR "dsp_spos: symbol SPDIFITASK not found\n");
            return -EIO;
      }

      {
            /* 0xBC0 */
            struct dsp_spdifoscb spdifo_scb = {
                  /* 0 */ DSP_SPOS_UUUU,
                  {
                        /* 1 */ 0xb0, 
                        /* 2 */ 0, 
                        /* 3 */ 0, 
                        /* 4 */ 0, 
                  },
                  /* NOTE: the SPDIF output task read samples in mono
                     format, the AsynchFGTxSCB task writes to buffer
                     in stereo format
                  */
                  /* 5 */ RSCONFIG_SAMPLE_16MONO + RSCONFIG_MODULO_256,
                  /* 6 */ ( SPDIFO_IP_OUTPUT_BUFFER1 << 0x10 )  |  0xFFFC,
                  /* 7 */ 0,0, 
                  /* 8 */ 0, 
                  /* 9 */ FG_TASK_HEADER_ADDR, NULL_SCB_ADDR, 
                  /* A */ spdifo_task->address,
                  SPDIFO_SCB_INST + SPDIFOFIFOPointer,
                  {
                        /* B */ 0x0040, /*DSP_SPOS_UUUU,*/
                        /* C */ 0x20ff, /*DSP_SPOS_UUUU,*/
                  },
                  /* D */ 0x804c,0,                                       /* SPDIFOFIFOPointer:SPDIFOStatRegAddr; */
                  /* E */ 0x0108,0x0001,                            /* SPDIFOStMoFormat:SPDIFOFIFOBaseAddr; */
                  /* F */ DSP_SPOS_UUUU                               /* SPDIFOFree; */
            };

            /* 0xBB0 */
            struct dsp_spdifiscb spdifi_scb = {
                  /* 0 */ DSP_SPOS_UULO,DSP_SPOS_UUHI,
                  /* 1 */ 0,
                  /* 2 */ 0,
                  /* 3 */ 1,4000,        /* SPDIFICountLimit SPDIFICount */ 
                  /* 4 */ DSP_SPOS_UUUU, /* SPDIFIStatusData */
                  /* 5 */ 0,DSP_SPOS_UUHI, /* StatusData, Free4 */
                  /* 6 */ DSP_SPOS_UUUU,  /* Free3 */
                  /* 7 */ DSP_SPOS_UU,DSP_SPOS_DC,  /* Free2 BitCount*/
                  /* 8 */ DSP_SPOS_UUUU,  /* TempStatus */
                  /* 9 */ SPDIFO_SCB_INST, NULL_SCB_ADDR,
                  /* A */ spdifi_task->address,
                  SPDIFI_SCB_INST + SPDIFIFIFOPointer,
                  /* NOTE: The SPDIF input task write the sample in mono
                     format from the HW FIFO, the AsynchFGRxSCB task  reads 
                     them in stereo 
                  */
                  /* B */ RSCONFIG_SAMPLE_16MONO + RSCONFIG_MODULO_128,
                  /* C */ (SPDIFI_IP_OUTPUT_BUFFER1 << 0x10) | 0xFFFC,
                  /* D */ 0x8048,0,
                  /* E */ 0x01f0,0x0001,
                  /* F */ DSP_SPOS_UUUU /* SPDIN_STATUS monitor */
            };

            /* 0xBA0 */
            struct dsp_async_codec_input_scb async_codec_input_scb = {
                  /* 0 */ DSP_SPOS_UUUU,
                  /* 1 */ 0,
                  /* 2 */ 0,
                  /* 3 */ 1,4000,
                  /* 4 */ 0x0118,0x0001,
                  /* 5 */ RSCONFIG_SAMPLE_16MONO + RSCONFIG_MODULO_64,
                  /* 6 */ (ASYNC_IP_OUTPUT_BUFFER1 << 0x10) | 0xFFFC,
                  /* 7 */ DSP_SPOS_UU,0x3,
                  /* 8 */ DSP_SPOS_UUUU,
                  /* 9 */ SPDIFI_SCB_INST,NULL_SCB_ADDR,
                  /* A */ s16_async_codec_input_task->address,
                  HFG_TREE_SCB + AsyncCIOFIFOPointer,
              
                  /* B */ RSCONFIG_SAMPLE_16STEREO + RSCONFIG_MODULO_64,
                  /* C */ (ASYNC_IP_OUTPUT_BUFFER1 << 0x10),  /*(ASYNC_IP_OUTPUT_BUFFER1 << 0x10) | 0xFFFC,*/
      
#ifdef UseASER1Input
                  /* short AsyncCIFIFOPointer:AsyncCIStatRegAddr;        
                     Init. 0000:8042: for ASER1
                     0000:8044: for ASER2 */
                  /* D */ 0x8042,0,
      
                  /* short AsyncCIStMoFormat:AsyncCIFIFOBaseAddr;
                     Init 1 stero:8050 ASER1
                     Init 0  mono:8070 ASER2
                     Init 1 Stereo : 0100 ASER1 (Set by script) */
                  /* E */ 0x0100,0x0001,
      
#endif
      
#ifdef UseASER2Input
                  /* short AsyncCIFIFOPointer:AsyncCIStatRegAddr;
                     Init. 0000:8042: for ASER1
                     0000:8044: for ASER2 */
                  /* D */ 0x8044,0,
      
                  /* short AsyncCIStMoFormat:AsyncCIFIFOBaseAddr;
                     Init 1 stero:8050 ASER1
                     Init 0  mono:8070 ASER2
                     Init 1 Stereo : 0100 ASER1 (Set by script) */
                  /* E */ 0x0110,0x0001,
      
#endif
      
                  /* short AsyncCIOutputBufModulo:AsyncCIFree;
                     AsyncCIOutputBufModulo: The modulo size for   
                     the output buffer of this task */
                  /* F */ 0, /* DSP_SPOS_UUUU */
            };

            spdifo_scb_desc = cs46xx_dsp_create_scb(chip,"SPDIFOSCB",(u32 *)&spdifo_scb,SPDIFO_SCB_INST);

            snd_assert(spdifo_scb_desc, return -EIO);
            spdifi_scb_desc = cs46xx_dsp_create_scb(chip,"SPDIFISCB",(u32 *)&spdifi_scb,SPDIFI_SCB_INST);
            snd_assert(spdifi_scb_desc, return -EIO);
            async_codec_scb_desc = cs46xx_dsp_create_scb(chip,"AsynCodecInputSCB",(u32 *)&async_codec_input_scb, HFG_TREE_SCB);
            snd_assert(async_codec_scb_desc, return -EIO);

            async_codec_scb_desc->parent_scb_ptr = NULL;
            async_codec_scb_desc->next_scb_ptr = spdifi_scb_desc;
            async_codec_scb_desc->sub_list_ptr = ins->the_null_scb;
            async_codec_scb_desc->task_entry = s16_async_codec_input_task;

            spdifi_scb_desc->parent_scb_ptr = async_codec_scb_desc;
            spdifi_scb_desc->next_scb_ptr = spdifo_scb_desc;
            spdifi_scb_desc->sub_list_ptr = ins->the_null_scb;
            spdifi_scb_desc->task_entry = spdifi_task;

            spdifo_scb_desc->parent_scb_ptr = spdifi_scb_desc;
            spdifo_scb_desc->next_scb_ptr = fg_entry;
            spdifo_scb_desc->sub_list_ptr = ins->the_null_scb;
            spdifo_scb_desc->task_entry = spdifo_task;

            /* this one is faked, as the parnet of SPDIFO task
               is the FG task tree */
            fg_entry->parent_scb_ptr = spdifo_scb_desc;

            /* for proc fs */
            cs46xx_dsp_proc_register_scb_desc (chip,spdifo_scb_desc);
            cs46xx_dsp_proc_register_scb_desc (chip,spdifi_scb_desc);
            cs46xx_dsp_proc_register_scb_desc (chip,async_codec_scb_desc);

            /* Async MASTER ENABLE, affects both SPDIF input and output */
            snd_cs46xx_pokeBA0(chip, BA0_ASER_MASTER, 0x1 );
      }

      return 0;
}

static void cs46xx_dsp_disable_spdif_hw (struct snd_cs46xx *chip)
{
      struct dsp_spos_instance * ins = chip->dsp_spos_instance;

      /* set SPDIF output FIFO slot */
      snd_cs46xx_pokeBA0(chip, BA0_ASER_FADDR, 0);

      /* SPDIF output MASTER ENABLE */
      cs46xx_poke_via_dsp (chip,SP_SPDOUT_CONTROL, 0);

      /* right and left validate bit */
      /*cs46xx_poke_via_dsp (chip,SP_SPDOUT_CSUV, ins->spdif_csuv_default);*/
      cs46xx_poke_via_dsp (chip,SP_SPDOUT_CSUV, 0x0);

      /* clear fifo pointer */
      cs46xx_poke_via_dsp (chip,SP_SPDIN_FIFOPTR, 0x0);

      /* monitor state */
      ins->spdif_status_out &= ~DSP_SPDIF_STATUS_HW_ENABLED;
}

int cs46xx_dsp_enable_spdif_hw (struct snd_cs46xx *chip)
{
      struct dsp_spos_instance * ins = chip->dsp_spos_instance;

      /* if hw-ctrl already enabled, turn off to reset logic ... */
      cs46xx_dsp_disable_spdif_hw (chip);
      udelay(50);

      /* set SPDIF output FIFO slot */
      snd_cs46xx_pokeBA0(chip, BA0_ASER_FADDR, ( 0x8000 | ((SP_SPDOUT_FIFO >> 4) << 4) ));

      /* SPDIF output MASTER ENABLE */
      cs46xx_poke_via_dsp (chip,SP_SPDOUT_CONTROL, 0x80000000);

      /* right and left validate bit */
      cs46xx_poke_via_dsp (chip,SP_SPDOUT_CSUV, ins->spdif_csuv_default);

      /* monitor state */
      ins->spdif_status_out |= DSP_SPDIF_STATUS_HW_ENABLED;

      return 0;
}

int cs46xx_dsp_enable_spdif_in (struct snd_cs46xx *chip)
{
      struct dsp_spos_instance * ins = chip->dsp_spos_instance;

      /* turn on amplifier */
      chip->active_ctrl(chip, 1);
      chip->amplifier_ctrl(chip, 1);

      snd_assert (ins->asynch_rx_scb == NULL,return -EINVAL);
      snd_assert (ins->spdif_in_src != NULL,return -EINVAL);

      mutex_lock(&chip->spos_mutex);

      if ( ! (ins->spdif_status_out & DSP_SPDIF_STATUS_INPUT_CTRL_ENABLED) ) {
            /* time countdown enable */
            cs46xx_poke_via_dsp (chip,SP_ASER_COUNTDOWN, 0x80000005);
            /* NOTE: 80000005 value is just magic. With all values
               that I've tested this one seem to give the best result.
               Got no explication why. (Benny) */

            /* SPDIF input MASTER ENABLE */
            cs46xx_poke_via_dsp (chip,SP_SPDIN_CONTROL, 0x800003ff);

            ins->spdif_status_out |= DSP_SPDIF_STATUS_INPUT_CTRL_ENABLED;
      }

      /* create and start the asynchronous receiver SCB */
      ins->asynch_rx_scb = cs46xx_dsp_create_asynch_fg_rx_scb(chip,"AsynchFGRxSCB",
                                                ASYNCRX_SCB_ADDR,
                                                SPDIFI_SCB_INST,
                                                SPDIFI_IP_OUTPUT_BUFFER1,
                                                ins->spdif_in_src,
                                                SCB_ON_PARENT_SUBLIST_SCB);

      spin_lock_irq(&chip->reg_lock);

      /* reset SPDIF input sample buffer pointer */
      /*snd_cs46xx_poke (chip, (SPDIFI_SCB_INST + 0x0c) << 2,
        (SPDIFI_IP_OUTPUT_BUFFER1 << 0x10) | 0xFFFC);*/

      /* reset FIFO ptr */
      /*cs46xx_poke_via_dsp (chip,SP_SPDIN_FIFOPTR, 0x0);*/
      cs46xx_src_link(chip,ins->spdif_in_src);

      /* unmute SRC volume */
      cs46xx_dsp_scb_set_volume (chip,ins->spdif_in_src,0x7fff,0x7fff);

      spin_unlock_irq(&chip->reg_lock);

      /* set SPDIF input sample rate and unmute
         NOTE: only 48khz support for SPDIF input this time */
      /* cs46xx_dsp_set_src_sample_rate(chip,ins->spdif_in_src,48000); */

      /* monitor state */
      ins->spdif_status_in = 1;
      mutex_unlock(&chip->spos_mutex);

      return 0;
}

int cs46xx_dsp_disable_spdif_in (struct snd_cs46xx *chip)
{
      struct dsp_spos_instance * ins = chip->dsp_spos_instance;

      snd_assert (ins->asynch_rx_scb != NULL, return -EINVAL);
      snd_assert (ins->spdif_in_src != NULL,return -EINVAL);      

      mutex_lock(&chip->spos_mutex);

      /* Remove the asynchronous receiver SCB */
      cs46xx_dsp_remove_scb (chip,ins->asynch_rx_scb);
      ins->asynch_rx_scb = NULL;

      cs46xx_src_unlink(chip,ins->spdif_in_src);

      /* monitor state */
      ins->spdif_status_in = 0;
      mutex_unlock(&chip->spos_mutex);

      /* restore amplifier */
      chip->active_ctrl(chip, -1);
      chip->amplifier_ctrl(chip, -1);

      return 0;
}

int cs46xx_dsp_enable_pcm_capture (struct snd_cs46xx *chip)
{
      struct dsp_spos_instance * ins = chip->dsp_spos_instance;

      snd_assert (ins->pcm_input == NULL,return -EINVAL);
      snd_assert (ins->ref_snoop_scb != NULL,return -EINVAL);

      mutex_lock(&chip->spos_mutex);
      ins->pcm_input = cs46xx_add_record_source(chip,ins->ref_snoop_scb,PCMSERIALIN_PCM_SCB_ADDR,
                                                  "PCMSerialInput_Wave");
      mutex_unlock(&chip->spos_mutex);

      return 0;
}

int cs46xx_dsp_disable_pcm_capture (struct snd_cs46xx *chip)
{
      struct dsp_spos_instance * ins = chip->dsp_spos_instance;

      snd_assert (ins->pcm_input != NULL,return -EINVAL);

      mutex_lock(&chip->spos_mutex);
      cs46xx_dsp_remove_scb (chip,ins->pcm_input);
      ins->pcm_input = NULL;
      mutex_unlock(&chip->spos_mutex);

      return 0;
}

int cs46xx_dsp_enable_adc_capture (struct snd_cs46xx *chip)
{
      struct dsp_spos_instance * ins = chip->dsp_spos_instance;

      snd_assert (ins->adc_input == NULL,return -EINVAL);
      snd_assert (ins->codec_in_scb != NULL,return -EINVAL);

      mutex_lock(&chip->spos_mutex);
      ins->adc_input = cs46xx_add_record_source(chip,ins->codec_in_scb,PCMSERIALIN_SCB_ADDR,
                                      "PCMSerialInput_ADC");
      mutex_unlock(&chip->spos_mutex);

      return 0;
}

int cs46xx_dsp_disable_adc_capture (struct snd_cs46xx *chip)
{
      struct dsp_spos_instance * ins = chip->dsp_spos_instance;

      snd_assert (ins->adc_input != NULL,return -EINVAL);

      mutex_lock(&chip->spos_mutex);
      cs46xx_dsp_remove_scb (chip,ins->adc_input);
      ins->adc_input = NULL;
      mutex_unlock(&chip->spos_mutex);

      return 0;
}

int cs46xx_poke_via_dsp (struct snd_cs46xx *chip, u32 address, u32 data)
{
      u32 temp;
      int  i;

      /* santiy check the parameters.  (These numbers are not 100% correct.  They are
         a rough guess from looking at the controller spec.) */
      if (address < 0x8000 || address >= 0x9000)
            return -EINVAL;
        
      /* initialize the SP_IO_WRITE SCB with the data. */
      temp = ( address << 16 ) | ( address & 0x0000FFFF);   /* offset 0 <-- address2 : address1 */

      snd_cs46xx_poke(chip,( SPIOWRITE_SCB_ADDR      << 2), temp);
      snd_cs46xx_poke(chip,((SPIOWRITE_SCB_ADDR + 1) << 2), data); /* offset 1 <-- data1 */
      snd_cs46xx_poke(chip,((SPIOWRITE_SCB_ADDR + 2) << 2), data); /* offset 1 <-- data2 */
    
      /* Poke this location to tell the task to start */
      snd_cs46xx_poke(chip,((SPIOWRITE_SCB_ADDR + 6) << 2), SPIOWRITE_SCB_ADDR << 0x10);

      /* Verify that the task ran */
      for (i=0; i<25; i++) {
            udelay(125);

            temp =  snd_cs46xx_peek(chip,((SPIOWRITE_SCB_ADDR + 6) << 2));
            if (temp == 0x00000000)
                  break;
      }

      if (i == 25) {
            snd_printk(KERN_ERR "dsp_spos: SPIOWriteTask not responding\n");
            return -EBUSY;
      }

      return 0;
}

int cs46xx_dsp_set_dac_volume (struct snd_cs46xx * chip, u16 left, u16 right)
{
      struct dsp_spos_instance * ins = chip->dsp_spos_instance;
      struct dsp_scb_descriptor * scb; 

      mutex_lock(&chip->spos_mutex);
      
      /* main output */
      scb = ins->master_mix_scb->sub_list_ptr;
      while (scb != ins->the_null_scb) {
            cs46xx_dsp_scb_set_volume (chip,scb,left,right);
            scb = scb->next_scb_ptr;
      }

      /* rear output */
      scb = ins->rear_mix_scb->sub_list_ptr;
      while (scb != ins->the_null_scb) {
            cs46xx_dsp_scb_set_volume (chip,scb,left,right);
            scb = scb->next_scb_ptr;
      }

      ins->dac_volume_left = left;
      ins->dac_volume_right = right;

      mutex_unlock(&chip->spos_mutex);

      return 0;
}

int cs46xx_dsp_set_iec958_volume (struct snd_cs46xx * chip, u16 left, u16 right)
{
      struct dsp_spos_instance * ins = chip->dsp_spos_instance;

      mutex_lock(&chip->spos_mutex);

      if (ins->asynch_rx_scb != NULL)
            cs46xx_dsp_scb_set_volume (chip,ins->asynch_rx_scb,
                                 left,right);

      ins->spdif_input_volume_left = left;
      ins->spdif_input_volume_right = right;

      mutex_unlock(&chip->spos_mutex);

      return 0;
}

#ifdef CONFIG_PM
int cs46xx_dsp_resume(struct snd_cs46xx * chip)
{
      struct dsp_spos_instance * ins = chip->dsp_spos_instance;
      int i, err;

      /* clear parameter, sample and code areas */
      snd_cs46xx_clear_BA1(chip, DSP_PARAMETER_BYTE_OFFSET,
                       DSP_PARAMETER_BYTE_SIZE);
      snd_cs46xx_clear_BA1(chip, DSP_SAMPLE_BYTE_OFFSET,
                       DSP_SAMPLE_BYTE_SIZE);
      snd_cs46xx_clear_BA1(chip, DSP_CODE_BYTE_OFFSET, DSP_CODE_BYTE_SIZE);

      for (i = 0; i < ins->nmodules; i++) {
            struct dsp_module_desc *module = &ins->modules[i];
            struct dsp_segment_desc *seg;
            u32 doffset, dsize;

            seg = get_segment_desc(module, SEGTYPE_SP_PARAMETER);
            err = dsp_load_parameter(chip, seg);
            if (err < 0)
                  return err;

            seg = get_segment_desc(module, SEGTYPE_SP_SAMPLE);
            err = dsp_load_sample(chip, seg);
            if (err < 0)
                  return err;

            seg = get_segment_desc(module, SEGTYPE_SP_PROGRAM);
            if (!seg)
                  continue;

            doffset = seg->offset * 4 + module->load_address * 4
                  + DSP_CODE_BYTE_OFFSET;
            dsize   = seg->size * 4;
            err = snd_cs46xx_download(chip,
                                ins->code.data + module->load_address,
                                doffset, dsize);
            if (err < 0)
                  return err;
      }

      for (i = 0; i < ins->ntask; i++) {
            struct dsp_task_descriptor *t = &ins->tasks[i];
            _dsp_create_task_tree(chip, t->data, t->address, t->size);
      }

      for (i = 0; i < ins->nscb; i++) {
            struct dsp_scb_descriptor *s = &ins->scbs[i];
            if (s->deleted)
                  continue;
            _dsp_create_scb(chip, s->data, s->address);
      }

      return 0;
}
#endif

Generated by  Doxygen 1.6.0   Back to index