moving max7219 stuff from main into device drivers folder. Cmake stuff is not yet implemented! This needs to be done sothat one can include it like so #include max7219.h

ked/device_drivers/CMakeLists.txt

@@ -0,0 +1,5 @@
+add_library(MAX7219 max7219.c)
+target_compile_options(MAX7219 PRIVATE ${C_FLAGS})
+target_compile_definitions(MAX7219 PRIVATE ${C_DEFS})
+target_include_directories(MAX7219 PUBLIC ${INTERFACES_DIR} ${CSL_INCLUDES})
+add_library(sub::max7219 ALIAS MAX7219)

ked/device_drivers/max7219/max7219.c

@@ -11,12 +11,114 @@ void max7219_testDisplay(
 		max7219_t *display,
 		uint8_t logic)
 {
-	if(logic) {
-		spiWriteReg(display->spiCH, 0x0F, 0x01);
-	} else {
-		spiWriteReg(display->spiCH, 0x0F, 0x00);
+	spiWriteReg(display->spiCH,0x0F, (logic) ? 0x01 : 0x00);
+}
+
+void max7219_shutdownDiaply(
+		max7219_t *display,
+		uint8_t logic)
+{
+	spiWriteReg(display->spiCH,0x0C, (logic) ? 0x00 : 0x01);
+}
+
+void max7219_setDecodeMode(
+		max7219_t *display,
+		max7219_decodeMode_t dmode)
+{
+	spiWriteReg(display->spiCH,0x09,(uint8_t) dmode);
+}
+
+void max7219_setIntensity(
+		max7219_t *display,
+		uint8_t intensity)
+{
+	spiWriteReg(display->spiCH, 0x0A, intensity & 0x0F);
+}
+		
+void max7219_setScanLimit(
+		max7219_t *display,
+		max7219_scanLimit_t slimit)
+{
+	spiWriteReg(display->spiCH, 0x0B, ((uint8_t) slimit) & 0x0F);
+}
+
+void max7219_setAllLEDsOff(
+		max7219_t *display)
+{
+	uint8_t i;
+	for(i = 0; i < 9; i++) {
+		spiWriteReg(display->spiCH, i, 0x00);
 	}
 }
 
+void max7219_ledMatrixSetLED(
+		max7219_t *display,
+		uint8_t row,
+		uint8_t col)
+{
+
+	uint8_t val = 0xAE;
+
+	row = (row & 0x07) + 1;
+	col = 1 << (col & 0x07);
 
+	spiWriteReg(display->spiCH, row,col);
+}
+
+void max7219_rawWrite(
+		max7219_t *display,
+		uint8_t reg,
+		uint8_t data)
+{
+	spiWriteReg(display->spiCH, reg, data);
+}
+
+void max7219_printLedMatrix(
+		max7219_t *display,
+		uint8_t matrix[])
+{
+	uint8_t i = 0;
+
+	for(i = 0; i < 8; i ++) {
+		spiWriteReg(display->spiCH, i+1, matrix[i]);
+	}
+}
+
+void max7219_ledMatrixUnsetLED(
+		max7219_t *display,
+		uint8_t row,
+		uint8_t col)
+{
+	row = (row & 0x07) + 1;
+	col = 1 << (col & 0x07);
+	// TODO: find out how to turn off LED
+	spiWriteReg(display->spiCH, row,col+1);
+}
+
+#if 0
+
+// daysichained matrix
+typedef struct{
+	spi_ch_t *spiCH;
+	uint8_t nDevices;
+}max7219_dm_t;
+
+
+void max7219_dm_write(
+		max7219_dm_t *matrix,
+		uint8_t **data)
+{
+	uint8_t i = 0;
+	uint8_t j = 0;
+	// TODO: Test it out
+	for(i = 0; i < 8; i++) {
+		pinWrite(matrix->spiCH->pin, 0);
+		for(j = 0; j < matrix->nDevices; j++) {
+			spiTrx8BitPolling(matrix->spiCH->spi, i+1); // reg
+			spiTrx8BitPolling(matrix->spiCH->spi, data[j][i]);
+		}
+		pinWrite(matrix->spiCH->pin, 1);
+	}
+}
+#endif
 

ked/device_drivers/max7219/max7219.h

@@ -22,40 +22,86 @@ extern "C" {
 
 #include <stdint.h>
 #include "spi.h"
+#include "pin.h"
+
+typedef enum{
+	NO_DECODE_DIGIT_7_TO_0 = 0x00,
+	CODE_B_DECODE_ONLY_DIGIT_0 = 0x01,
+	CODE_B_DECODE_ONLY_DIGIT_3_TO_0 = 0x0F,
+	CODE_B_DECOD_DIGIT_7_TO_0 = 0xFF
+}max7219_decodeMode_t;
+
+typedef enum{
+	DISPLAY_DIGIT_0 = 0x00,
+	DISPLAY_DIGIT_1_TO_0 = 0x01,
+	DSIPLAX_DIGIT_2_TO_0 = 0x02,
+	DSIPLAX_DIGIT_3_TO_0 = 0x03,
+	DSIPLAX_DIGIT_4_TO_0 = 0x04,
+	DSIPLAX_DIGIT_5_TO_0 = 0x05,
+	DSIPLAX_DIGIT_6_TO_0 = 0x06,
+	DSIPLAX_DIGIT_7_TO_0 = 0x07
+}max7219_scanLimit_t;
 
 typedef struct{
 	spi_ch_t *spiCH;
 }max7219_t;
-#if 0
-/*
- * @brief TODO:
- */
+
 void max7219_init(
 		max7219_t *display,
 		spi_ch_t *spi_ch);
 
-
-/**
- * @brief Test Display
- * Test  Display by setting logic > 0 and stop testing by setting logic = 0
- * In test mode all the LEDs should light up. Stopping testmode will resume back to previous
- * setting.
- * @param  *display pointer to max7219 display object
- * @param logic logic state for logic high enter value > 0 and for low enter value = 0
- */
 void max7219_testDisplay(
 		max7219_t *display,
 		uint8_t logic);
 
-/**
- * @brief Shutdown Display
- * Shut down the display by setting the logic value > 0. To activate the display again set
- * logic = 0.
- * @param
- */ 
-void max7219_shutdownDisplay(
+void max7219_shutdownDiaply(
 		max7219_t *display,
 		uint8_t logic);
+
+void max7219_setDecodeMode(
+		max7219_t *display,
+		max7219_decodeMode_t dmode);
+
+void max7219_setIntensity(
+		max7219_t *display,
+		uint8_t intensity);
+		
+void max7219_setScanLimit(
+		max7219_t *display,
+		max7219_scanLimit_t slimit);
+
+void max7219_setAllLEDsOff(
+		max7219_t *display);
+
+void max7219_ledMatrixSetLED(
+		max7219_t *display,
+		uint8_t row,
+		uint8_t col);
+
+void max7219_rawWrite(
+		max7219_t *display,
+		uint8_t reg,
+		uint8_t data);
+
+void max7219_printLedMatrix(
+		max7219_t *display,
+		uint8_t matrix[]);
+
+void max7219_ledMatrixUnsetLED(
+		max7219_t *display,
+		uint8_t row,
+		uint8_t col);
+#if 0
+// daysichained matrix
+typedef struct{
+	spi_ch_t *spiCH;
+	uint8_t nDevices;
+}max7219_dm_t;
+
+
+void max7219_dm_write(
+		max7219_dm_t *matrix,
+		uint8_t **data);
 #endif
 
 #ifdef _cplusplus

main.c

@@ -6,8 +6,10 @@
 #include "timer.h"
 #include "spi.h"
 
-//#include "ked/device_drivers/max7219/max7219.h "
+//#include "max7219.h"
+#include "ked/device_drivers/max7219/max7219.h"
 
+#if 0
 typedef enum{
 	NO_DECODE_DIGIT_7_TO_0 = 0x00,
 	CODE_B_DECODE_ONLY_DIGIT_0 = 0x01,
@@ -150,6 +152,7 @@ void max7219_dm_write(
 
 	}
 }
+#endif
 
 
 void dispTest(max7219_t *disp)