1 /**
2 * \ingroup MODULMACROS
3 *
4 * \file WriteMemBytes.c
5 *
6 * \brief Write bytes to a memory mapped location
7 *
8 */
9 /*
10 * Copyright (C) 2012 Texas Instruments Incorporated - http://www.ti.com/
11 *
12 *
13 * Redistribution and use in source and binary forms, with or without
14 * modification, are permitted provided that the following conditions
15 * are met:
16 *
17 * Redistributions of source code must retain the above copyright
18 * notice, this list of conditions and the following disclaimer.
19 *
20 * Redistributions in binary form must reproduce the above copyright
21 * notice, this list of conditions and the following disclaimer in the
22 * documentation and/or other materials provided with the
23 * distribution.
24 *
25 * Neither the name of Texas Instruments Incorporated nor the names of
26 * its contributors may be used to endorse or promote products derived
27 * from this software without specific prior written permission.
28 *
29 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
30 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
31 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
32 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
33 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
34 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
35 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
36 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
37 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
38 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
39 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
40 */
41
42 #include "error_def.h"
43 #include "arch.h"
44 #include "edt.h"
45 #include "hal.h"
46 #include "stream.h"
47
48
49 /**
50 WriteMemBytes
51 Write bytes to a memory mapped location.
52 inData: <addr(32)> <length(32)> <data(8)>{*}
53 outData: -
54 addr: the address to start writing to
55 length: number of bytes to write
56 data: data to write to the given location
57 */
58
HAL_FUNCTION(_hal_WriteMemBytes)59 HAL_FUNCTION(_hal_WriteMemBytes)
60 {
61 static unsigned long lLen;
62 static unsigned long lAddr;
63
64 short ret_value = 0;
65 unsigned char value;
66
67 if(flags & MESSAGE_NEW_MSG)
68 {
69 if(STREAM_get_long(&lAddr) != 0)
70 {
71 return HALERR_WRITE_MEM_WORD_NO_RAM_ADDRESS;
72 }
73 if(STREAM_get_long(&lLen) == -1)
74 {
75 return HALERR_WRITE_MEM_WORD_NO_RAM_SIZE;
76 }
77 halt_cpu();
78 IHIL_Tclk(0);
79 cntrl_sig_16bit();
80 SetReg_16Bits(0x2418);
81 }
82
83 lLen *= 2; //DLL always sends size in word
84 for(; lLen && (ret_value == 0); lLen--)
85 {
86 ret_value = STREAM_get_byte(&value);
87 addr_16bit();
88 SetReg_16Bits((unsigned short)lAddr);
89 data_to_addr();
90 SetReg_8Bits(value);
91 IHIL_Tclk(1);
92 IHIL_Tclk(0);
93 lAddr += 1;
94 }
95
96 if(flags & MESSAGE_LAST_MSG)
97 {
98 release_cpu();
99 }
100 else if(ret_value == 1)
101 {
102 STREAM_out_change_type(RESPTYP_ACKNOWLEDGE);
103 ret_value = 0;
104 }
105 else
106 {
107 ret_value = HALERR_WRITE_MEM_WORD_UNKNOWN;
108 }
109 return(ret_value);
110 }
111