Mercurial > mbsePi-apps / file comparison
comparison: thermferm/lcd-pcf8574.c
thermferm/lcd-pcf8574.c
- changeset 426
- e54611453d29
- parent 420
- 644a6106d712
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| 425:c51265b518ce | 426:e54611453d29 |
|---|---|
| 42 }; | 42 }; |
| 43 | 43 |
| 44 extern struct lcdDataStruct *lcds [MAX_LCDS]; | 44 extern struct lcdDataStruct *lcds [MAX_LCDS]; |
| 45 #endif | 45 #endif |
| 46 extern sys_config Config; | 46 extern sys_config Config; |
| 47 | 47 extern uint16_t leds; |
| 48 | 48 |
| 49 | 49 |
| 50 /* | 50 /* |
| 51 * setBacklight: | 51 * setBacklight: |
| 52 ********************************************************************************* | 52 ********************************************************************************* |
| 53 */ | 53 */ |
| 54 void setBacklight(int value) | |
| 55 { | |
| 54 #ifdef HAVE_WIRINGPI_H | 56 #ifdef HAVE_WIRINGPI_H |
| 55 void setBacklight (int value) | 57 pinMode (AF_BACKLIGHT, OUTPUT) ; |
| 56 { | 58 digitalWrite (AF_BACKLIGHT, (value & 1)) ; |
| 57 pinMode (AF_BACKLIGHT, OUTPUT) ; | 59 #endif |
| 58 digitalWrite (AF_BACKLIGHT, (value & 1)) ; | 60 if (value) { |
| 61 leds |= SLED_LCD; | |
| 62 } else { | |
| 63 leds &= ~SLED_LCD; | |
| 64 } | |
| 65 slcdLEDs(slcdHandle); | |
| 59 } | 66 } |
| 60 #endif | |
| 61 | 67 |
| 62 | 68 |
| 63 /* | 69 /* |
| 64 * initLCD: | 70 * initLCD: |
| 65 ********************************************************************************* | 71 ********************************************************************************* |
| 66 */ | 72 */ |
| 67 | 73 |
| 68 int initLCD (int cols, int rows) | 74 int initLCD(int cols, int rows) |
| 69 { | 75 { |
| 70 if (!((rows == 1) || (rows == 2) || (rows == 4))) { | 76 if (!((rows == 1) || (rows == 2) || (rows == 4))) { |
| 71 fprintf (stderr, "rows must be 1, 2 or 4\n") ; | 77 fprintf (stderr, "rows must be 1, 2 or 4\n") ; |
| 72 return EXIT_FAILURE ; | 78 return EXIT_FAILURE ; |
| 73 } | 79 } |
| 90 fprintf (stderr, "lcdInit failed\n") ; | 96 fprintf (stderr, "lcdInit failed\n") ; |
| 91 return -1 ; | 97 return -1 ; |
| 92 } | 98 } |
| 93 | 99 |
| 94 lcdClear (lcdHandle) ; | 100 lcdClear (lcdHandle) ; |
| 95 setBacklight (1) ; | |
| 96 #endif | 101 #endif |
| 97 | 102 |
| 98 slcdHandle = slcdInit(0, rows, cols); | 103 slcdHandle = slcdInit(0, rows, cols); |
| 99 if (slcdHandle < 0) { | 104 if (slcdHandle < 0) { |
| 100 fprintf (stderr, "slcdInit failed\n") ; | 105 fprintf (stderr, "slcdInit failed\n") ; |
| 101 return -1; | 106 return -1; |
| 102 } | 107 } |
| 103 slcdClear(slcdHandle); | 108 slcdClear(slcdHandle); |
| 109 setBacklight(1); | |
| 104 | 110 |
| 105 return 0 ; | 111 return 0 ; |
| 106 } | 112 } |
| 107 | 113 |
| 108 | 114 |
