| /* |
| * chnlpriv.h |
| * |
| * DSP-BIOS Bridge driver support functions for TI OMAP processors. |
| * |
| * Private channel header shared between DSPSYS, DSPAPI and |
| * Bridge driver modules. |
| * |
| * Copyright (C) 2005-2006 Texas Instruments, Inc. |
| * |
| * This package is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License version 2 as |
| * published by the Free Software Foundation. |
| * |
| * THIS PACKAGE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR |
| * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED |
| * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. |
| */ |
| |
| #ifndef CHNLPRIV_ |
| #define CHNLPRIV_ |
| |
| #include <dspbridge/chnldefs.h> |
| #include <dspbridge/devdefs.h> |
| #include <dspbridge/sync.h> |
| |
| /* Channel manager limits: */ |
| #define CHNL_MAXCHANNELS 32 /* Max channels available per transport */ |
| |
| /* |
| * Trans port channel Id definitions:(must match dsp-side). |
| * |
| * For CHNL_MAXCHANNELS = 16: |
| * |
| * ChnlIds: |
| * 0-15 (PCPY) - transport 0) |
| * 16-31 (DDMA) - transport 1) |
| * 32-47 (ZCPY) - transport 2) |
| */ |
| #define CHNL_PCPY 0 /* Proc-copy transport 0 */ |
| |
| /* Higher level channel states: */ |
| #define CHNL_STATEREADY 0 /* Channel ready for I/O. */ |
| #define CHNL_STATECANCEL 1 /* I/O was cancelled. */ |
| #define CHNL_STATEEOS 2 /* End Of Stream reached. */ |
| |
| /* Macros for checking mode: */ |
| #define CHNL_IS_INPUT(mode) (mode & CHNL_MODEFROMDSP) |
| #define CHNL_IS_OUTPUT(mode) (!CHNL_IS_INPUT(mode)) |
| |
| /* Types of channel class libraries: */ |
| #define CHNL_TYPESM 1 /* Shared memory driver. */ |
| |
| /* Channel info. */ |
| struct chnl_info { |
| struct chnl_mgr *chnl_mgr; /* Owning channel manager. */ |
| u32 cnhl_id; /* Channel ID. */ |
| void *event_obj; /* Channel I/O completion event. */ |
| /*Abstraction of I/O completion event. */ |
| struct sync_object *sync_event; |
| s8 mode; /* Channel mode. */ |
| u8 state; /* Current channel state. */ |
| u32 bytes_tx; /* Total bytes transferred. */ |
| u32 cio_cs; /* Number of IOCs in queue. */ |
| u32 cio_reqs; /* Number of IO Requests in queue. */ |
| u32 process; /* Process owning this channel. */ |
| }; |
| |
| /* Channel manager info: */ |
| struct chnl_mgrinfo { |
| u8 type; /* Type of channel class library. */ |
| /* Channel handle, given the channel id. */ |
| struct chnl_object *chnl_obj; |
| u8 open_channels; /* Number of open channels. */ |
| u8 max_channels; /* total # of chnls supported */ |
| }; |
| |
| /* Channel Manager Attrs: */ |
| struct chnl_mgrattrs { |
| /* Max number of channels this manager can use. */ |
| u8 max_channels; |
| u32 word_size; /* DSP Word size. */ |
| }; |
| |
| #endif /* CHNLPRIV_ */ |
