Rename pin.. to gpio..

1 files changed, 0 insertions, 372 deletions

diff --git a/avr/pin.c b/avr/pin.c
deleted file mode 100644
index 6e88aa5..0000000
--- a/avr/pin.c
+++ /dev/null
@@ -1,372 +0,0 @@
-#include "common.h"
-#include <util/atomic.h>
-#include <limits.h>
-#include "debug.h"
-#include "pin.h"
-
-
-/*
-
-Pin	Name	Port	Timer	Mode	max div		max div		min f [Hz]
-----------------------------------------------------------------------------------
-0		PG5	OC0B	PWM	(2**8)*1024	  262144	70.31
-1		PG4
-2	CLK2	PB4	OC2A	Toggle	(2**8)*1024*2	  524288	35.16
-3	ZCLK	PB5	OC1A	PWM	(2**16)*1024	67108864	0.2746
-4		PB6	OC1B	PWM	(2**16)*1024	67108864	0.2746
-5		PB7	OC0A	Toggle	(2**8)*1024*2	  524288	35.16
-6		PG3
-7		PG2
-8		PG1
-9		PG0
-10	CLKO	PE7
-
-
-pre	Timer0		Timer1		Timer2
---------------------------------------------------
-0	0		0		0
-1	1		1		1
-2	8	x8	8	x8	8	x8
-3	64	x8	64	x8	32	x4
-4	256	x4	256	x4	64	x2
-5	1024	x4	1024	x4	128	x2
-6					256	x2
-7					1024	x4
---------------------------------------------------                	        	
-
-*/
-
-
-#define PWMTOGGLE	0b01
-#define PWMPOS		0b10
-#define PWMNEG		0b11
-
-
-const FLASH uint8_t prescale_factors_01[] = 
-	{ 8, 8, 4, 4, 0 };
-
-const FLASH uint8_t prescale_factors_2[] = 
-	{ 8, 4, 2, 2, 2, 4, 0 };
-
-typedef volatile struct {
-	uint8_t pin;
-	uint8_t ddr;
-	uint8_t pout;
-} port_t ;
-
-struct pindef_s {
-	port_t * const adr;
-	const uint8_t mask;
-#define NO_TIMER	0
-#define TIMER0		(1 << 0)
-#define TIMER1		(2 << 0)
-#define TIMER2		(3 << 0)
-#define TIMER		(3 << 0)
-#define T_16BIT		(1 << 3)
-#define CHANA		(1 << 4)
-#define CHANB		(0 << 4)
-	const uint8_t timer;
-};
-
-
-const FLASH struct pindef_s pinlist[PIN_MAX] = {
-	{ (port_t *) &PING, _BV(5), TIMER0 | CHANB },
-	{ (port_t *) &PING, _BV(4), NO_TIMER },
-	{ (port_t *) &PINB, _BV(4), TIMER2 | CHANA },
-	{ (port_t *) &PINB, _BV(5), TIMER1 | CHANA | T_16BIT },
-	{ (port_t *) &PINB, _BV(6), TIMER1 | CHANB | T_16BIT },
-	{ (port_t *) &PINB, _BV(7), TIMER0 | CHANA },
-	{ (port_t *) &PING, _BV(3), NO_TIMER },
-	{ (port_t *) &PING, _BV(2), NO_TIMER },
-	{ (port_t *) &PING, _BV(1), NO_TIMER },
-	{ (port_t *) &PING, _BV(0), NO_TIMER },
-	{ (port_t *) &PINE, _BV(7), NO_TIMER },
-};
-	
-void pin_timer_off(uint8_t timertype)
-{
-	uint8_t chan_mask;
-	
-	if (timertype & CHANA)
-		chan_mask = 0xc0;
-	else
-		chan_mask = 0x30;
-
-	switch (timertype & TIMER) {
-	case TIMER0:
-		if (TCCR0A & chan_mask) {
-			TCCR0B = 0;
-			TCCR0A = 0;
-			PRR0 |= _BV(PRTIM0);
-		}
-		break;
-	case TIMER1:
-		if (TCCR1A & chan_mask) {
-			TCCR1B = 0;
-			TCCR1A = 0;
-			PRR0 |= _BV(PRTIM1);
-		}
-		break;
-	case TIMER2:
-		if (TCCR2A & chan_mask) {
-			TCCR2B = 0;
-			TCCR2A = 0;
-			PRR0 |= _BV(PRTIM2);
-		}
-		break;
-	}
-}
-
-int pin_config(int pin, pinmode_t mode)
-{
-	if ((unsigned) pin >= ARRAY_SIZE(pinlist)) {
-		/* Invalid pin number */
-		return -1;
-	} else {
-
-		port_t *p = pinlist[pin].adr;
-		uint8_t bit = pinlist[pin].mask;
-	
-		switch (mode) {
-		case INPUT:
-			pin_timer_off(pinlist[pin].timer);
-			ATOMIC_BLOCK(ATOMIC_FORCEON) {
-				p->ddr &= ~bit;
-				p->pout &= ~bit;
-			}
-			break;
-		case INPUT_PULLUP:
-			pin_timer_off(pinlist[pin].timer);
-			ATOMIC_BLOCK(ATOMIC_FORCEON) {
-				p->ddr &= ~bit;
-				p->pout |= bit;
-			}
-			break;
-		case OUTPUT:
-			pin_timer_off(pinlist[pin].timer);
-		case OUTPUT_TIMER:
-			ATOMIC_BLOCK(ATOMIC_FORCEON) {
-				p->ddr |= bit;
-			}
-			break;
-		default:
-			/* Invalid pin mode */
-			return -1;
-		}
-	}
-	return 0;
-}
-
-void pin_write(int pin, uint8_t val)
-{
-	port_t *p = pinlist[pin].adr;
-	uint8_t bit = pinlist[pin].mask;
-	
-	ATOMIC_BLOCK(ATOMIC_FORCEON) {
-		if (val)
-			p->pout |= bit;
-		else
-			p->pout &= ~bit;
-	}
-}
-
-int pin_read(int pin)
-{
-	port_t *p = pinlist[pin].adr;
-	uint8_t bit = pinlist[pin].mask;
-	
-	return (p->pin & bit) != 0;
-}
-
-pinmode_t pin_config_get(int pin) 
-{
-	uint8_t timertype = pinlist[pin].timer;
-
-	if (timertype & TIMER) {
-	
-		uint8_t chan_mask;
-		if (timertype & CHANA)
-			chan_mask = 0xc0;
-		else
-			chan_mask = 0x30;
-
-		switch (timertype & TIMER) {
-		case TIMER0:
-			if (TCCR0A & chan_mask)
-				return OUTPUT_TIMER;
-			break;
-		case TIMER1:
-			if (TCCR1A & chan_mask)
-				return OUTPUT_TIMER;
-			break;
-		case TIMER2:
-			if (TCCR2A & chan_mask)
-				return OUTPUT_TIMER;
-			break;
-		}
-	}
-	
-	port_t *p = pinlist[pin].adr;
-	uint8_t bit = pinlist[pin].mask;
-
-	if (p->ddr & bit)
-		return OUTPUT;
-	
-	if (p->pout & bit)
-		return INPUT_PULLUP;
-		
-	return INPUT;
-}
-	
-/*
- * return -1: pin has no timer output
- *	   0: pin is not configured for timer output
- *	 > 0: divider
- */
- 
-long pin_clockdiv_get(int pin)
-{
-	long divider;
-	uint8_t prescale;
-	const FLASH uint8_t *pstab;
-
-	uint8_t timertype = pinlist[pin].timer;
-	if ((timertype & TIMER) == 0)
-		return -1;
-
-	if (pin_config_get(pin) != OUTPUT_TIMER)
-		return 0;
-	
-	switch (timertype & TIMER) {
-	case TIMER0:
-		prescale = TCCR0B;
-		divider = OCR0A;
-		break;
-
-	case TIMER1:
-		prescale = TCCR1B;
-		divider = ICR1;
-		break;
-
-	case TIMER2:
-		prescale = TCCR2B;
-		divider = OCR2A;
-		break;
-	}
-
-	prescale = (prescale & 0x07) - 1;
-	divider += 1;
-
-	pstab = (timertype & TIMER) == TIMER2 ? 
-			prescale_factors_2 : prescale_factors_01;
-			
-	while (prescale--)
-		divider *= pstab[prescale];
-			
-	if ((timertype & (CHANA|T_16BIT)) == CHANA)
-		divider *= 2;
-		
-	return divider;
-}
-
-int pin_clockdiv_set(int pin, unsigned long divider)
-{
-	unsigned long ltop;
-	uint16_t top;
-	uint8_t prescale;
-	const FLASH uint8_t *pstab;
-
-	uint8_t timertype = pinlist[pin].timer;
-	if ((timertype & TIMER) == 0)
-		return 0;
-
-	if (divider < 2)
-		return -1;
-		
-	ltop = divider;
-	if ((timertype & (CHANA|T_16BIT)) == CHANA)
-		ltop /= 2;
-		
-	if (ltop > 1024 * ((timertype & T_16BIT) ? (1L<<16) : (1L<<8)))
-		return -1;
-
-	prescale = 1;
-	pstab = (timertype & TIMER) == TIMER2 ? 
-			prescale_factors_2 : prescale_factors_01;
-			
-//	debug("** clockdiv_set: pin: %d, ltop: %lu, prescale: %d\n",
-//		pin, ltop, prescale);
-
-	while (ltop > ((timertype & T_16BIT) ? (1L<<16) : (1L<<8)))  {
-//		debug("** clockdiv_set: pin: %d, ltop: %lu, prescale: %d, *pstab %d\n",
-//			pin, ltop, prescale, *pstab);
-
-		if (*pstab == 0)
-			return -1;
-		ltop /= *pstab++;
-		prescale++;
-	}
-
-	if (ltop == 0)
-		return -1;
-
-	top = ltop - 1;
-
-	PING |= _BV(0);		/* Debug */
-
-	switch (timertype & TIMER) {
-	case TIMER0:
-		PRR0 &= ~_BV(PRTIM0);
-		TCCR0B = (1 << WGM02);
-		TCNT0 = 0;
-		OCR0A = top;
-		if (timertype & CHANA) {
-			TCCR0A = (PWMTOGGLE << COM0A0) | (0b11 << WGM00);
-		} else {
-			OCR0B = top/2;
-			TCCR0A = (PWMPOS << COM0B0) | (0b11 << WGM10);
-		}
-		TCCR0B = (1 << WGM02) | (prescale << CS10);
-		break;
-
-	case TIMER1:
-		PRR0 &= ~_BV(PRTIM1);
-			TCCR1B = (0b11 << WGM12);
-			TCNT1 = 0;
-			ICR1 = top;
-			if (timertype & CHANA) {
-				OCR1A = top/2;
-				TCCR1A = (PWMPOS << COM1A0) | (0b10 << WGM10);
-			} else {
-				OCR1B = top/2;
-				TCCR1A = (PWMPOS << COM1B0) | (0b10 << WGM10);
-			}
-//			debug("pin: %d, top: %u,"
-//				" ICR1: %u, OCR1A: %u, OCR1B: %u\n",
-//				pin, top, ICR1, OCR1A, OCR1B);
-
-			TCCR1B = (0b11 << WGM12)  | (prescale << CS10);
-		break;
-
-	case TIMER2:
-		PRR0 &= ~_BV(PRTIM2);
-		TCCR2B = (1 << WGM22);
-		TCNT2 = 0;
-		OCR2A = top;
-		if (timertype & CHANA) {
-			TCCR2A = (PWMTOGGLE << COM2A0) | (0b11 << WGM20);
-		} else {
-			OCR2B = top/2;
-			TCCR2A = (PWMPOS << COM2B0) | (0b11 << WGM10);
-		}
-		TCCR2B = (1 << WGM22) | (prescale << CS10);
-		break;
-	}
-
-	PING |= _BV(0);		/* Debug */
-
-	pin_config(pin, OUTPUT_TIMER);
-
-	return 0;
-}
-