1 /******************************************************************************
2 * Filename: adi.c
3 * Revised: 2015-04-29 16:41:08 +0200 (Wed, 29 Apr 2015)
4 * Revision: 43361
5 *
6 * Description: Driver for the ADI interface
7 *
8 * Copyright (c) 2015, Texas Instruments Incorporated
9 * All rights reserved.
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions are met:
13 *
14 * 1) Redistributions of source code must retain the above copyright notice,
15 * this list of conditions and the following disclaimer.
16 *
17 * 2) Redistributions in binary form must reproduce the above copyright notice,
18 * this list of conditions and the following disclaimer in the documentation
19 * and/or other materials provided with the distribution.
20 *
21 * 3) Neither the name of the ORGANIZATION nor the names of its contributors may
22 * be used to endorse or promote products derived from this software without
23 * specific prior written permission.
24 *
25 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
26 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
27 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
28 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
29 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
30 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
31 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
32 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
33 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
34 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
35 * POSSIBILITY OF SUCH DAMAGE.
36 *
37 ******************************************************************************/
38
39 #include <inc/hw_types.h>
40 #include <inc/hw_memmap.h>
41 #include <inc/hw_aux_smph.h>
42 #include <driverlib/adi.h>
43 #include <driverlib/cpu.h>
44
45
46 //*****************************************************************************
47 //
48 // SafeHapiAuxAdiSelect()
49 // Common wrapper function for the Hapi functions needing the "bus arbitration
50 // issue" workaround.
51 //
52 //*****************************************************************************
SafeHapiAuxAdiSelect(FPTR_VOID_UINT8_T fPtr,uint8_t ut8Signal)53 void SafeHapiAuxAdiSelect( FPTR_VOID_UINT8_T fPtr, uint8_t ut8Signal )
54 {
55 bool bIrqEnabled = ( ! CPUcpsid() );
56 while ( ! HWREG( AUX_SMPH_BASE + AUX_SMPH_O_SMPH0 ));
57 fPtr( ut8Signal );
58 HWREG( AUX_SMPH_BASE + AUX_SMPH_O_SMPH0 ) = 1;
59 if ( bIrqEnabled ) {
60 CPUcpsie();
61 }
62 }
63