X-Git-Url: https://rtime.felk.cvut.cz/gitweb/fpga/rpi-motor-control.git/blobdiff_plain/a54714b1caefa707bad771a992278d073b1377ee..59b72ac21a7189e402f90a288889174af4fe3015:/pmsm-control/test_sw/rpin.h

diff --git a/pmsm-control/test_sw/rpin.h b/pmsm-control/test_sw/rpin.h
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+/**
+ * \brief Interface pro ovladani pinu na RPi.
+ * \file rpin.h
+ * \date March 21, 2015
+ * \author Martin Prudek
+ *
+ * 	Deklaruje nativni funkce pro ovladani pinu a pwm na RPi.
+ * 	Implementace  "rpi_hw.c"
+ *
+ *
+ */
+
+#ifndef RPIN_H_
+#define RPIN_H_
+
+
+/* Pin modes */
+#define	INPUT			 0
+#define	OUTPUT			 1
+#define	PWM_OUTPUT		 2
+#define	GPIO_CLOCK		 3
+#define	FSEL_INPT		0b000	/*0*/
+#define	FSEL_OUTP		0b001	/*1*/
+#define	FSEL_ALT0		0b100	/*4*/
+#define	FSEL_ALT1		0b101	/*5*/
+#define	FSEL_ALT2		0b110	/*6*/
+#define	FSEL_ALT3		0b111	/*7*/
+#define	FSEL_ALT4		0b011	/*3*/
+#define	FSEL_ALT5		0b010	/*2*/
+
+/* Logic levels */
+#define	LOW			 0
+#define	HIGH			 1
+
+/* Clk sources */
+enum ClkSource{
+	PLLD_500_MHZ=0,		/*500 MHz*/
+	OSC_19_MHZ_2=1,		/*19.2 MHz*/
+     	HDMI_216_MHZ=2,		/*216 MHz*/
+     	PLLC_1000_MHZ=3 	/*1000 MHz, changes with overclock*/
+};
+
+/**
+ * \brief inicializuje pouziti GPIO pinu...
+ * (namapuje registry DMA)
+ */
+extern int initialise (void);
+
+/**
+ * \brief
+ *	Select the native "balanced" mode, or standard mark:space mode
+ */
+extern void pwmSetMode (int);
+
+/**
+ * \brief
+ *	Set the PWM range register. We set both range registers to the same
+ *	value.
+ */
+extern void pwmSetRange (unsigned int);
+
+/**
+ * \brief
+ *	Set/Change the PWM clock.
+ *	Not tested.
+ */
+extern void pwmSetClock (int);
+
+/**
+ * \brief nastavi mod dnaeho pinu
+ * \param pin [in] cislo GPIO pinu
+ * \param mode [in] mod pinu -> in/out/altx
+ *
+ * Nastavi pin jako vstupni / vystupni, pripadne nastavi slternativni funkci.
+ */
+extern void pinMode (int, int);
+
+/**
+ * \brief Precte logickou uroven daneho pinu 0/1
+ * v pripade neicnicializovaneho GPIO nebo neexistence pinu vrati 0
+ * \param pin [in] cislo GPIO pinu
+ */
+extern int digitalRead (int);
+
+/**
+ * \brief zapise logickou uroven na dany pin
+ * \param pin [in] cislo GPIO pinu
+ * \param value [in] logicka uroven 0/1
+ */
+extern void digitalWrite (int, int);
+
+/**
+ * \brief nastavi hodnotu pwm
+ * \param pin[in] cislo GPIO PWM pinu
+ * \param value[int] sirka plneni  pwm (max=1024)
+ */
+extern void pwmWrite (int, int);
+
+/**
+ * \brief A different approach to set gpio mode.
+ */
+extern void gpioSetMode(unsigned gpio_n, unsigned mode);
+
+/**
+ * \brief Initialize gpclk.
+ */
+extern int initClock(enum ClkSource,int, int);
+
+#endif /*RPIN_H_*/