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- #include "card.h"
- #define BL_RED OCR1B
- #define BL_GREEN OCR1A
- #define BL_BLUE OCR1C
- void backlight_init_ports(void)
- {
- // Set B5, B6, and B7 as output
- DDRB |= (1<<7)|(1<<6)|(1<<5);
- // Setup PWM
- ICR1 = 0xFFFF;
- TCCR1A = 0b10101010;
- TCCR1B = 0b00011001;
- BL_RED = 0xFFFF;
- BL_GREEN = 0xFFFF;
- BL_BLUE = 0xFFFF;
- }
- void backlight_set(uint8_t level)
- {
- // Set the RGB color
- switch (level)
- {
- case 0:
- // Off
- BL_RED = 0xFFFF;
- BL_GREEN = 0xFFFF;
- BL_BLUE = 0xFFFF;
- break;
- case 1:
- // Red
- BL_RED = 0x0000;
- BL_GREEN = 0xFFFF;
- BL_BLUE = 0xFFFF;
- break;
- case 2:
- // Green
- BL_RED = 0xFFFF;
- BL_GREEN = 0x0000;
- BL_BLUE = 0xFFFF;
- break;
- case 3:
- // Blue
- BL_RED = 0xFFFF;
- BL_GREEN = 0xFFFF;
- BL_BLUE = 0x0000;
- break;
- case 4:
- // Magenta
- BL_RED = 0x4000;
- BL_GREEN = 0x4000;
- BL_BLUE = 0x4000;
- break;
- case 5:
- // Purple
- BL_RED = 0x0000;
- BL_GREEN = 0xFFFF;
- BL_BLUE = 0x0000;
- break;
- case 6:
- // Yellow
- BL_RED = 0x0000;
- BL_GREEN = 0x0000;
- BL_BLUE = 0xFFFF;
- break;
- default:
- xprintf("Unknown level: %d\n", level);
- }
- }
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