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comparison: thermferm/lcd-pcf8574.c

thermferm/lcd-pcf8574.c

changeset 420
644a6106d712
parent 223
14700edd2a67
child 426
e54611453d29
equal deleted inserted replaced
419:8a7f8272516c 420:644a6106d712
23 *********************************************************************** 23 ***********************************************************************
24 */ 24 */
25 25
26 #include "thermferm.h" 26 #include "thermferm.h"
27 #include "lcd-pcf8574.h" 27 #include "lcd-pcf8574.h"
28 #include "slcd.h"
29
30
31 int lcdHandle;
32 int slcdHandle;
28 33
29 34
30 #ifdef HAVE_WIRINGPI_H 35 #ifdef HAVE_WIRINGPI_H
31
32 int lcdHandle;
33
34 struct lcdDataStruct 36 struct lcdDataStruct
35 { 37 {
36 int bits, rows, cols ; 38 int bits, rows, cols ;
37 int rsPin, strbPin ; 39 int rsPin, strbPin ;
38 int dataPins [8] ; 40 int dataPins [8] ;
39 int cx, cy ; 41 int cx, cy ;
40 }; 42 };
41 43
42 extern struct lcdDataStruct *lcds [MAX_LCDS]; 44 extern struct lcdDataStruct *lcds [MAX_LCDS];
45 #endif
43 extern sys_config Config; 46 extern sys_config Config;
44 47
45 48
46 49
47 /* 50 /*
48 * setBacklight: 51 * setBacklight:
49 ********************************************************************************* 52 *********************************************************************************
50 */ 53 */
51 54 #ifdef HAVE_WIRINGPI_H
52 void setBacklight (int value) 55 void setBacklight (int value)
53 { 56 {
54 pinMode (AF_BACKLIGHT, OUTPUT) ; 57 pinMode (AF_BACKLIGHT, OUTPUT) ;
55 digitalWrite (AF_BACKLIGHT, (value & 1)) ; 58 digitalWrite (AF_BACKLIGHT, (value & 1)) ;
56 } 59 }
57 60 #endif
58 61
59 62
60 /* 63 /*
61 * initLCD: 64 * initLCD:
62 ********************************************************************************* 65 *********************************************************************************
72 if (!((cols == 16) || (cols == 20))) { 75 if (!((cols == 16) || (cols == 20))) {
73 fprintf (stderr, "cols must be 16 or 20\n") ; 76 fprintf (stderr, "cols must be 16 or 20\n") ;
74 return EXIT_FAILURE ; 77 return EXIT_FAILURE ;
75 } 78 }
76 79
80 #ifdef HAVE_WIRINGPI_H
77 pcf8574Setup(AF_BASE, 0x27) ; 81 pcf8574Setup(AF_BASE, 0x27) ;
78 pinMode (AF_RW, OUTPUT) ; 82 pinMode (AF_RW, OUTPUT) ;
79 digitalWrite (AF_RW, LOW) ; // Not used with wiringPi - always in write mode 83 digitalWrite (AF_RW, LOW) ; // Not used with wiringPi - always in write mode
80 84
81 /* 85 /*
87 return -1 ; 91 return -1 ;
88 } 92 }
89 93
90 lcdClear (lcdHandle) ; 94 lcdClear (lcdHandle) ;
91 setBacklight (1) ; 95 setBacklight (1) ;
96 #endif
97
98 slcdHandle = slcdInit(0, rows, cols);
99 if (slcdHandle < 0) {
100 fprintf (stderr, "slcdInit failed\n") ;
101 return -1;
102 }
103 slcdClear(slcdHandle);
92 104
93 return 0 ; 105 return 0 ;
94 } 106 }
95 107
96 108
97 #endif

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