release/src-rt-6.x.4708/linux/linux-2.6.36/drivers/staging/tidspbridge/include/dspbridge/nodepriv.h

   1 /*
   2  * nodepriv.h
   3  *
   4  * DSP-BIOS Bridge driver support functions for TI OMAP processors.
   5  *
   6  * Private node header shared by NODE and DISP.
   7  *
   8  * Copyright (C) 2005-2006 Texas Instruments, Inc.
   9  *
  10  * This package is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License version 2 as
  12  * published by the Free Software Foundation.
  13  *
  14  * THIS PACKAGE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
  15  * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
  16  * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
  17  */
  18
  19 #ifndef NODEPRIV_
  20 #define NODEPRIV_
  21
  22 #include <dspbridge/strmdefs.h>
  23 #include <dspbridge/nodedefs.h>
  24 #include <dspbridge/nldrdefs.h>
  25
  26 /* DSP address of node environment structure */
  27 typedef u32 nodeenv;
  28
  29 /*
  30  *  Node create structures
  31  */
  32
  33 /* Message node */
  34 struct node_msgargs {
  35         u32 max_msgs;           /* Max # of simultaneous messages for node */
  36         u32 seg_id;             /* Segment for allocating message buffers */
  37         u32 notify_type;        /* Notify type (SEM_post, SWI_post, etc.) */
  38         u32 arg_length;         /* Length in 32-bit words of arg data block */
  39         u8 *pdata;              /* Argument data for node */
  40 };
  41
  42 struct node_strmdef {
  43         u32 buf_size;           /* Size of buffers for SIO stream */
  44         u32 num_bufs;           /* max # of buffers in SIO stream at once */
  45         u32 seg_id;             /* Memory segment id to allocate buffers */
  46         u32 utimeout;           /* Timeout for blocking SIO calls */
  47         u32 buf_alignment;      /* Buffer alignment */
  48         char *sz_device;        /* Device name for stream */
  49 };
  50
  51 /* Task node */
  52 struct node_taskargs {
  53         struct node_msgargs node_msg_args;
  54         s32 prio;
  55         u32 stack_size;
  56         u32 sys_stack_size;
  57         u32 stack_seg;
  58         u32 udsp_heap_res_addr; /* DSP virtual heap address */
  59         u32 udsp_heap_addr;     /* DSP virtual heap address */
  60         u32 heap_size;          /* Heap size */
  61         u32 ugpp_heap_addr;     /* GPP virtual heap address */
  62         u32 profile_id;         /* Profile ID */
  63         u32 num_inputs;
  64         u32 num_outputs;
  65         u32 ul_dais_arg;        /* Address of iAlg object */
  66         struct node_strmdef *strm_in_def;
  67         struct node_strmdef *strm_out_def;
  68 };
  69
  70 /*
  71  *  ======== node_createargs ========
  72  */
  73 struct node_createargs {
  74         union {
  75                 struct node_msgargs node_msg_args;
  76                 struct node_taskargs task_arg_obj;
  77         } asa;
  78 };
  79
  80 /*
  81  *  ======== node_get_channel_id ========
  82  *  Purpose:
  83  *      Get the channel index reserved for a stream connection between the
  84  *      host and a node. This index is reserved when node_connect() is called
  85  *      to connect the node with the host. This index should be passed to
  86  *      the CHNL_Open function when the stream is actually opened.
  87  *  Parameters:
  88  *      hnode:          Node object allocated from node_allocate().
  89  *      dir:           Input (DSP_TONODE) or output (DSP_FROMNODE).
  90  *      index:         Stream index.
  91  *      chan_id:        Location to store channel index.
  92  *  Returns:
  93  *      0:        Success.
  94  *      -EFAULT:    Invalid hnode.
  95  *      -EPERM:  Not a task or DAIS socket node.
  96  *      -EINVAL:     The node's stream corresponding to index and dir
  97  *                      is not a stream to or from the host.
  98  *  Requires:
  99  *      node_init(void) called.
 100  *      Valid dir.
 101  *      chan_id != NULL.
 102  *  Ensures:
 103  */
 104 extern int node_get_channel_id(struct node_object *hnode,
 105                                       u32 dir, u32 index, u32 *chan_id);
 106
 107 /*
 108  *  ======== node_get_strm_mgr ========
 109  *  Purpose:
 110  *      Get the STRM manager for a node.
 111  *  Parameters:
 112  *      hnode:          Node allocated with node_allocate().
 113  *      strm_man:       Location to store STRM manager on output.
 114  *  Returns:
 115  *      0:        Success.
 116  *      -EFAULT:    Invalid hnode.
 117  *  Requires:
 118  *      strm_man != NULL.
 119  *  Ensures:
 120  */
 121 extern int node_get_strm_mgr(struct node_object *hnode,
 122                                     struct strm_mgr **strm_man);
 123
 124 /*
 125  *  ======== node_get_timeout ========
 126  *  Purpose:
 127  *      Get the timeout value of a node.
 128  *  Parameters:
 129  *      hnode:      Node allocated with node_allocate(), or DSP_HGPPNODE.
 130  *  Returns:
 131  *      Node's timeout value.
 132  *  Requires:
 133  *      Valid hnode.
 134  *  Ensures:
 135  */
 136 extern u32 node_get_timeout(struct node_object *hnode);
 137
 138 /*
 139  *  ======== node_get_type ========
 140  *  Purpose:
 141  *      Get the type (device, message, task, or XDAIS socket) of a node.
 142  *  Parameters:
 143  *      hnode:      Node allocated with node_allocate(), or DSP_HGPPNODE.
 144  *  Returns:
 145  *      Node type:  NODE_DEVICE, NODE_TASK, NODE_XDAIS, or NODE_GPP.
 146  *  Requires:
 147  *      Valid hnode.
 148  *  Ensures:
 149  */
 150 extern enum node_type node_get_type(struct node_object *hnode);
 151
 152 /*
 153  *  ======== get_node_info ========
 154  *  Purpose:
 155  *      Get node information without holding semaphore.
 156  *  Parameters:
 157  *      hnode:      Node allocated with node_allocate(), or DSP_HGPPNODE.
 158  *  Returns:
 159  *      Node info:  priority, device owner, no. of streams, execution state
 160  *                  NDB properties.
 161  *  Requires:
 162  *      Valid hnode.
 163  *  Ensures:
 164  */
 165 extern void get_node_info(struct node_object *hnode,
 166                           struct dsp_nodeinfo *node_info);
 167
 168 /*
 169  *  ======== node_get_load_type ========
 170  *  Purpose:
 171  *      Get the load type (dynamic, overlay, static) of a node.
 172  *  Parameters:
 173  *      hnode:      Node allocated with node_allocate(), or DSP_HGPPNODE.
 174  *  Returns:
 175  *      Node type:  NLDR_DYNAMICLOAD, NLDR_OVLYLOAD, NLDR_STATICLOAD
 176  *  Requires:
 177  *      Valid hnode.
 178  *  Ensures:
 179  */
 180 extern enum nldr_loadtype node_get_load_type(struct node_object *hnode);
 181
 182 #endif /* NODEPRIV_ */