1 /**************************************************************************/
2 /* */
3 /* Copyright (c) Microsoft Corporation. All rights reserved. */
4 /* */
5 /* This software is licensed under the Microsoft Software License */
6 /* Terms for Microsoft Azure RTOS. Full text of the license can be */
7 /* found in the LICENSE file at https://aka.ms/AzureRTOS_EULA */
8 /* and in the root directory of this software. */
9 /* */
10 /**************************************************************************/
11
12
13 /**************************************************************************/
14 /**************************************************************************/
15 /** */
16 /** USBX Component */
17 /** */
18 /** Pictbridge Application */
19 /** */
20 /**************************************************************************/
21 /**************************************************************************/
22
23
24 /* Include necessary system files. */
25
26 #define UX_SOURCE_CODE
27
28 #include "ux_api.h"
29 #include "ux_utility.h"
30 #include "ux_pictbridge.h"
31
32
33 /**************************************************************************/
34 /* */
35 /* FUNCTION RELEASE */
36 /* */
37 /* _ux_pictbridge_hexa_to_major_minor PORTABLE C */
38 /* 6.1 */
39 /* AUTHOR */
40 /* */
41 /* Chaoqiong Xiao, Microsoft Corporation */
42 /* */
43 /* DESCRIPTION */
44 /* */
45 /* This function translates an hexa value into an major.minor value */
46 /* (xx.xx). */
47 /* */
48 /* Note: the space of the output_buffer must be equal to or larger */
49 /* than 5 to fill all converted characters. */
50 /* */
51 /* INPUT */
52 /* */
53 /* hexa_value Value to be translated */
54 /* output_buffer Where to store the result */
55 /* */
56 /* OUTPUT */
57 /* */
58 /* Completion Status */
59 /* */
60 /* CALLS */
61 /* */
62 /* */
63 /* CALLED BY */
64 /* */
65 /* _ux_pictbridge_object_parse */
66 /* */
67 /* RELEASE HISTORY */
68 /* */
69 /* DATE NAME DESCRIPTION */
70 /* */
71 /* 05-19-2020 Chaoqiong Xiao Initial Version 6.0 */
72 /* 09-30-2020 Chaoqiong Xiao Modified comment(s), */
73 /* verified memset and memcpy */
74 /* cases, */
75 /* resulting in version 6.1 */
76 /* */
77 /**************************************************************************/
_ux_pictbridge_hexa_to_major_minor(ULONG hexa_value,UCHAR * output_buffer)78 UINT _ux_pictbridge_hexa_to_major_minor(ULONG hexa_value, UCHAR *output_buffer)
79 {
80
81 UCHAR hexa_major;
82 UCHAR hexa_minor;
83 UINT status;
84
85
86 /* Reset the output buffer. */
87 _ux_utility_memory_set(output_buffer, 0, 5); /* Use case of memset is verified. */
88
89 /* Isolate the major. */
90 hexa_major = (UCHAR)(hexa_value >> 16);
91
92 /* Isolate the minor. */
93 hexa_minor = (UCHAR)(hexa_value & 0xFFFF);
94
95 /* Insert the decimal value of the major. */
96 status = _ux_pictbridge_hexa_to_decimal_string(hexa_major, output_buffer, UX_PICTBRIDGE_LEADING_ZERO_ON, 2);
97 if (status != UX_SUCCESS)
98 return(status);
99
100 /* Update the address of the destination. */
101 output_buffer += 2;
102
103 /* Insert the '.' between major and minor. */
104 *output_buffer++ = '.';
105
106 /* Insert the decimal value of the minor. */
107 status = _ux_pictbridge_hexa_to_decimal_string(hexa_minor, output_buffer, UX_PICTBRIDGE_LEADING_ZERO_ON, 2);
108 if (status != UX_SUCCESS)
109 return(status);
110
111 /* Operation was successful. */
112 return(UX_SUCCESS);
113 }
114
115
