1/* 2 * dspdrv.h 3 * 4 * DSP-BIOS Bridge driver support functions for TI OMAP processors. 5 * 6 * This is the Stream Interface for the DSp API. 7 * All Device operations are performed via DeviceIOControl. 8 * 9 * Copyright (C) 2005-2006 Texas Instruments, Inc. 10 * 11 * This package is free software; you can redistribute it and/or modify 12 * it under the terms of the GNU General Public License version 2 as 13 * published by the Free Software Foundation. 14 * 15 * THIS PACKAGE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR 16 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED 17 * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. 18 */ 19 20#if !defined _DSPDRV_H_ 21#define _DSPDRV_H_ 22 23/* 24 * ======== dsp_deinit ======== 25 * Purpose: 26 * This function is called by Device Manager to de-initialize a device. 27 * This function is not called by applications. 28 * Parameters: 29 * device_context:Handle to the device context. The XXX_Init function 30 * creates and returns this identifier. 31 * Returns: 32 * TRUE indicates the device successfully de-initialized. Otherwise it 33 * returns FALSE. 34 * Requires: 35 * device_context!= NULL. For a built in device this should never 36 * get called. 37 * Ensures: 38 */ 39extern bool dsp_deinit(u32 device_context); 40 41/* 42 * ======== dsp_init ======== 43 * Purpose: 44 * This function is called by Device Manager to initialize a device. 45 * This function is not called by applications 46 * Parameters: 47 * dw_context: Specifies a pointer to a string containing the registry 48 * path to the active key for the stream interface driver. 49 * HKEY_LOCAL_MACHINE\Drivers\Active 50 * Returns: 51 * Returns a handle to the device context created. This is the our actual 52 * Device Object representing the DSP Device instance. 53 * Requires: 54 * Ensures: 55 * Succeeded: device context > 0 56 * Failed: device Context = 0 57 */ 58extern u32 dsp_init(u32 *init_status); 59 60#endif 61