[funini.com] -> [kei@sodan] -> Kernel Reading

root/sound/pci/cs46xx/dsp_spos.c

/* [<][>][^][v][top][bottom][index][help] */

DEFINITIONS

This source file includes following definitions.
  1. shadow_and_reallocate_code
  2. get_segment_desc
  3. find_free_symbol_index
  4. add_symbols
  5. add_symbol
  6. cs46xx_dsp_spos_create
  7. cs46xx_dsp_spos_destroy
  8. dsp_load_parameter
  9. dsp_load_sample
  10. cs46xx_dsp_load_module
  11. cs46xx_dsp_lookup_symbol
  12. cs46xx_dsp_lookup_symbol_addr
  13. cs46xx_dsp_proc_symbol_table_read
  14. cs46xx_dsp_proc_modules_read
  15. cs46xx_dsp_proc_task_tree_read
  16. cs46xx_dsp_proc_scb_read
  17. cs46xx_dsp_proc_parameter_dump_read
  18. cs46xx_dsp_proc_sample_dump_read
  19. cs46xx_dsp_proc_init
  20. cs46xx_dsp_proc_done
  21. _dsp_create_task_tree
  22. _dsp_create_scb
  23. find_free_scb_index
  24. _map_scb
  25. _map_task_tree
  26. cs46xx_dsp_create_scb
  27. cs46xx_dsp_create_task_tree
  28. cs46xx_dsp_scb_and_task_init
  29. cs46xx_dsp_async_init
  30. cs46xx_dsp_disable_spdif_hw
  31. cs46xx_dsp_enable_spdif_hw
  32. cs46xx_dsp_enable_spdif_in
  33. cs46xx_dsp_disable_spdif_in
  34. cs46xx_dsp_enable_pcm_capture
  35. cs46xx_dsp_disable_pcm_capture
  36. cs46xx_dsp_enable_adc_capture
  37. cs46xx_dsp_disable_adc_capture
  38. cs46xx_poke_via_dsp
  39. cs46xx_dsp_set_dac_volume
  40. cs46xx_dsp_set_iec958_volume
  41. cs46xx_dsp_resume

/*
 *   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 <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;

        if (snd_BUG_ON(size %2))
                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;

        if (snd_BUG_ON(!ins))
                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 */
                if (snd_BUG_ON(!module->symbol_table.symbols))
                        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);

        if (snd_BUG_ON(chip->nr_ac97_codecs != 1 && chip->nr_ac97_codecs != 2))
                goto _fail_end;

        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);

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

        if (snd_BUG_ON(ins->asynch_rx_scb))
                return -EINVAL;
        if (snd_BUG_ON(!ins->spdif_in_src))
                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;

        if (snd_BUG_ON(!ins->asynch_rx_scb))
                return -EINVAL;
        if (snd_BUG_ON(!ins->spdif_in_src))
                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;

        if (snd_BUG_ON(ins->pcm_input))
                return -EINVAL;
        if (snd_BUG_ON(!ins->ref_snoop_scb))
                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;

        if (snd_BUG_ON(!ins->pcm_input))
                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;

        if (snd_BUG_ON(ins->adc_input))
                return -EINVAL;
        if (snd_BUG_ON(!ins->codec_in_scb))
                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;

        if (snd_BUG_ON(!ins->adc_input))
                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

/* [<][>][^][v][top][bottom][index][help] */

[funini.com] -> [kei@sodan] -> Kernel Reading