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 timeout;		/* 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 dsp_heap_res_addr;	/* DSP virtual heap address */
59 	u32 dsp_heap_addr;	/* DSP virtual heap address */
60 	u32 heap_size;		/* Heap size */
61 	u32 gpp_heap_addr;	/* GPP virtual heap address */
62 	u32 profile_id;		/* Profile ID */
63 	u32 num_inputs;
64 	u32 num_outputs;
65 	u32 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  *      Valid dir.
100  *      chan_id != NULL.
101  *  Ensures:
102  */
103 extern int node_get_channel_id(struct node_object *hnode,
104 				      u32 dir, u32 index, u32 *chan_id);
105 
106 /*
107  *  ======== node_get_strm_mgr ========
108  *  Purpose:
109  *      Get the STRM manager for a node.
110  *  Parameters:
111  *      hnode:          Node allocated with node_allocate().
112  *      strm_man:       Location to store STRM manager on output.
113  *  Returns:
114  *      0:        Success.
115  *      -EFAULT:    Invalid hnode.
116  *  Requires:
117  *      strm_man != NULL.
118  *  Ensures:
119  */
120 extern int node_get_strm_mgr(struct node_object *hnode,
121 				    struct strm_mgr **strm_man);
122 
123 /*
124  *  ======== node_get_timeout ========
125  *  Purpose:
126  *      Get the timeout value of a node.
127  *  Parameters:
128  *      hnode:      Node allocated with node_allocate(), or DSP_HGPPNODE.
129  *  Returns:
130  *      Node's timeout value.
131  *  Requires:
132  *      Valid hnode.
133  *  Ensures:
134  */
135 extern u32 node_get_timeout(struct node_object *hnode);
136 
137 /*
138  *  ======== node_get_type ========
139  *  Purpose:
140  *      Get the type (device, message, task, or XDAIS socket) of a node.
141  *  Parameters:
142  *      hnode:      Node allocated with node_allocate(), or DSP_HGPPNODE.
143  *  Returns:
144  *      Node type:  NODE_DEVICE, NODE_TASK, NODE_XDAIS, or NODE_GPP.
145  *  Requires:
146  *      Valid hnode.
147  *  Ensures:
148  */
149 extern enum node_type node_get_type(struct node_object *hnode);
150 
151 /*
152  *  ======== get_node_info ========
153  *  Purpose:
154  *      Get node information without holding semaphore.
155  *  Parameters:
156  *      hnode:      Node allocated with node_allocate(), or DSP_HGPPNODE.
157  *  Returns:
158  *      Node info:  priority, device owner, no. of streams, execution state
159  *                  NDB properties.
160  *  Requires:
161  *      Valid hnode.
162  *  Ensures:
163  */
164 extern void get_node_info(struct node_object *hnode,
165 			  struct dsp_nodeinfo *node_info);
166 
167 /*
168  *  ======== node_get_load_type ========
169  *  Purpose:
170  *      Get the load type (dynamic, overlay, static) of a node.
171  *  Parameters:
172  *      hnode:      Node allocated with node_allocate(), or DSP_HGPPNODE.
173  *  Returns:
174  *      Node type:  NLDR_DYNAMICLOAD, NLDR_OVLYLOAD, NLDR_STATICLOAD
175  *  Requires:
176  *      Valid hnode.
177  *  Ensures:
178  */
179 extern enum nldr_loadtype node_get_load_type(struct node_object *hnode);
180 
181 #endif /* NODEPRIV_ */
182