1 files changed, 0 insertions, 514 deletions
diff --git a/sys/src/9/bitsy/uartsa1110.c b/sys/src/9/bitsy/uartsa1110.c
deleted file mode 100644
index 02b5e6298..000000000
--- a/sys/src/9/bitsy/uartsa1110.c
+++ /dev/null
@@ -1,514 +0,0 @@
-#include	"u.h"
-#include	"../port/lib.h"
-#include	"mem.h"
-#include	"dat.h"
-#include	"fns.h"
-#include	"io.h"
-#include	"../port/error.h"
-
-#include	"../port/netif.h"
-
-/* this isn't strictly an sa1110 driver.  The rts/cts stuff is h3650 specific */
-
-static void sa1110_uartpower(Uart *, int);
-
-enum
-{
-	/* ctl[0] bits */
-	Parity=		1<<0,
-	Even=		1<<1,
-	Stop2=		1<<2,
-	Bits8=		1<<3,
-	SCE=		1<<4,	/* synchronous clock enable */
-	RCE=		1<<5,	/* rx on falling edge of clock */
-	TCE=		1<<6,	/* tx on falling edge of clock */
-
-	/* ctl[3] bits */
-	Rena=		1<<0,	/* receiver enable */
-	Tena=		1<<1,	/* transmitter enable */
-	Break=		1<<2,	/* force TXD3 low */
-	Rintena=	1<<3,	/* enable receive interrupt */
-	Tintena=	1<<4,	/* enable transmitter interrupt */
-	Loopback=	1<<5,	/* loop back data */
-
-	/* data bits */
-	DEparity=	1<<8,	/* parity error */
-	DEframe=	1<<9,	/* framing error */
-	DEoverrun=	1<<10,	/* overrun error */
-
-	/* status[0] bits */
-	Tint=		1<<0,	/* transmit fifo half full interrupt */
-	Rint0=		1<<1,	/* receiver fifo 1/3-2/3 full */
-	Rint1=		1<<2,	/* receiver fifo not empty and receiver idle */
-	Breakstart=	1<<3,
-	Breakend=	1<<4,
-	Fifoerror=	1<<5,	/* fifo error */
-
-	/* status[1] bits */
-	Tbusy=		1<<0,	/* transmitting */
-	Rnotempty=	1<<1,	/* receive fifo not empty */
-	Tnotfull=	1<<2,	/* transmit fifo not full */
-	ParityError=	1<<3,
-	FrameError=	1<<4,
-	Overrun=	1<<5,
-};
-
-extern PhysUart sa1110physuart;
-
-//static
-Uart sa1110uart[2] = {
-{	.regs		= (void*)UART3REGS,
-	.name		= "serialport3",
-	.freq		= ClockFreq,
-	.bits		= 8,
-	.stop		= 1,
-	.parity		= 'n',
-	.baud		= 115200,
-	.phys		= &sa1110physuart,
-	.special	= 0,
-	.next		= &sa1110uart[1], },
-
-{	.regs		= (void*)UART1REGS,
-	.name		= "serialport1",
-	.freq		= ClockFreq,
-	.bits		= 8,
-	.stop		= 1,
-	.parity		= 'n',
-	.baud		= 115200,
-	.phys		= &sa1110physuart,
-	.putc		= µcputc,
-	.special	= 0,
-	.next		= nil, },
-};
-static Uart* µcuart;
-
-#define R(p) ((Uartregs*)((p)->regs))
-#define SR(p) ((Uartregs*)((p)->saveregs))
-
-/*
- *  enable a port's interrupts.  set DTR and RTS
- */
-static void
-sa1110_uartenable(Uart *p, int intena)
-{
-	ulong s;
-
-	s = R(p)->ctl[3] & ~(Rintena|Tintena|Rena|Tena);
-	if(intena)
-		R(p)->ctl[3] = s |Rintena|Tintena|Rena|Tena;
-	else
-		R(p)->ctl[3] = s | Rena|Tena;
-}
-
-/*
- *  disable interrupts. clear DTR, and RTS
- */
-static void
-sa1110_uartdisable(Uart *p)
-{
-	R(p)->ctl[3] &= ~(Rintena|Tintena|Rena|Tena);
-}
-
-static long
-sa1110_uartstatus(Uart *p, void *buf, long n, long offset)
-{
-	char str[256];
-	ulong ctl0;
-
-	ctl0 = R(p)->ctl[0];
-	snprint(str, sizeof(str),
-		"b%d c%d d%d e%d l%d m%d p%c r%d s%d i%d\n"
-		"dev(%d) type(%d) framing(%d) overruns(%d)%s%s%s%s\n",
-
-		p->baud,
-		p->hup_dcd, 
-		0,
-		p->hup_dsr,
-		(ctl0 & Bits8) ? 8 : 7,
-		0, 
-		(ctl0 & Parity) ? ((ctl0 & Even) ? 'e' : 'o') : 'n',
-		0,
-		(ctl0 & Stop2) ? 2 : 1,
-		1,
-
-		p->dev,
-		p->type,
-		p->ferr,
-		p->oerr, 
-		"",
-		"",
-		"",
-		"" );
-	return readstr(offset, buf, n, str);
-}
-
-/*
- *  set the buad rate
- */
-static int
-sa1110_uartbaud(Uart *p, int rate)
-{
-	ulong brconst;
-	ulong ctl3;
-
-	if(rate <= 0)
-		return -1;
-
-	/* disable */
-	ctl3 = R(p)->ctl[3];
-	R(p)->ctl[3] = 0;
-
-	brconst = p->freq/(16*rate) - 1;
-	R(p)->ctl[1] = (brconst>>8) & 0xf;
-	R(p)->ctl[2] = brconst & 0xff;
-
-	/* reenable */
-	R(p)->ctl[3] = ctl3;
-
-	p->baud = rate;
-	return 0;
-}
-
-/*
- *  send a break
- */
-static void
-sa1110_uartbreak(Uart *p, int ms)
-{
-	if(ms == 0)
-		ms = 200;
-
-	R(p)->ctl[3] |= Break;
-	tsleep(&up->sleep, return0, 0, ms);
-	R(p)->ctl[3] &= ~Break;
-}
-
-/*
- *  set bits/char
- */
-static int
-sa1110_uartbits(Uart *p, int n)
-{
-	ulong ctl0, ctl3;
-
-	ctl0 = R(p)->ctl[0];
-	switch(n){
-	case 7:
-		ctl0 &= ~Bits8;
-		break;
-	case 8:
-		ctl0 |= Bits8;
-		break;
-	default:
-		return -1;
-	}
-
-	/* disable */
-	ctl3 = R(p)->ctl[3];
-	R(p)->ctl[3] = 0;
-
-	R(p)->ctl[0] = ctl0;
-
-	/* reenable */
-	R(p)->ctl[3] = ctl3;
-
-	p->bits = n;
-	return 0;
-}
-
-/*
- *  set stop bits
- */
-static int
-sa1110_uartstop(Uart *p, int n)
-{
-	ulong ctl0, ctl3;
-
-	ctl0 = R(p)->ctl[0];
-	switch(n){
-	case 1:
-		ctl0 &= ~Stop2;
-		break;
-	case 2:
-		ctl0 |= Stop2;
-		break;
-	default:
-		return -1;
-	}
-
-	/* disable */
-	ctl3 = R(p)->ctl[3];
-	R(p)->ctl[3] = 0;
-
-	R(p)->ctl[0] = ctl0;
-
-	/* reenable */
-	R(p)->ctl[3] = ctl3;
-
-	p->stop = n;
-	return 0;
-}
-
-/*
- *  turn on/off rts
- */
-static void
-sa1110_uartrts(Uart*, int)
-{
-}
-
-/*
- *  turn on/off dtr
- */
-static void
-sa1110_uartdtr(Uart*, int)
-{
-}
-
-/*
- *  turn on/off modem flow control on/off (rts/cts)
- */
-static void
-sa1110_uartmodemctl(Uart *p, int on)
-{
-	if(on) {
-	} else {
-		p->cts = 1;
-	}
-}
-
-/*
- *  set parity
- */
-static int
-sa1110_uartparity(Uart *p, int type)
-{
-	ulong ctl0, ctl3;
-
-	ctl0 = R(p)->ctl[0];
-	switch(type){
-	case 'e':
-		ctl0 |= Parity|Even;
-		break;
-	case 'o':
-		ctl0 |= Parity;
-		break;
-	default:
-		ctl0 &= ~(Parity|Even);
-		break;
-	}
-
-	/* disable */
-	ctl3 = R(p)->ctl[3];
-	R(p)->ctl[3] = 0;
-
-	R(p)->ctl[0] = ctl0;
-
-	/* reenable */
-	R(p)->ctl[3] = ctl3;
-
-	return 0;
-}
-
-/*
- *  restart output if not blocked and OK to send
- */
-static void
-sa1110_uartkick(Uart *p)
-{
-	int i;
-
-	R(p)->ctl[3] &= ~Tintena;
-
-	if(p->cts == 0 || p->blocked)
-		return;
-
-	for(i = 0; i < 1024; i++){
-		if(!(R(p)->status[1] & Tnotfull)){
-			R(p)->ctl[3] |= Tintena;
-			break;
-		}
-		if(p->op >= p->oe && uartstageoutput(p) == 0)
-			break;
-		R(p)->data = *p->op++;
-	}
-}
-
-/*
- *  take an interrupt
- */
-static void
-sa1110_uartintr(Ureg*, void *x)
-{
-	Uart *p;
-	ulong s;
-	Uartregs *regs;
-
-	p = x;
-	regs = p->regs;
-
-	/* receiver interrupt, snarf bytes */
-	while(regs->status[1] & Rnotempty)
-		uartrecv(p, regs->data);
-
-	/* remember and reset interrupt causes */
-	s = regs->status[0];
-	regs->status[0] |= s;
-
-	if(s & Tint){
-		/* transmitter interrupt, restart */
-		uartkick(p);
-	}
-
-	if(s & (ParityError|FrameError|Overrun)){
-		if(s & ParityError)
-			p->parity++;
-		if(s & FrameError)
-			p->ferr++;
-		if(s & Overrun)
-			p->oerr++;
-	}
-
-	/* receiver interrupt, snarf bytes */
-	while(regs->status[1] & Rnotempty)
-		uartrecv(p, regs->data);
-}
-
-static Uart*
-sa1110_pnp(void)
-{
-	return sa1110uart;
-}
-
-static int
-sa1110_getc(Uart *uart)
-{
-	Uartregs *ur;
-
-	ur = uart->regs;
-	while((ur->status[1] & Rnotempty) == 0)
-		;
-	return ur->data;
-}
-
-static void
-sa1110_putc(Uart *uart, int c)
-{
-	Uartregs *ur;
-
-	ur = uart->regs;
-	/* wait for output ready */
-	while((ur->status[1] & Tnotfull) == 0)
-		;
-	ur->data = c;
-	while((ur->status[1] & Tbusy))
-		;
-}
-
-PhysUart sa1110physuart = {
-	.name=		"sa1110",
-	.pnp= 		sa1110_pnp,
-	.enable=	sa1110_uartenable,
-	.disable=	sa1110_uartdisable,
-	.bits=		sa1110_uartbits,
-	.kick=		sa1110_uartkick,
-	.modemctl=	sa1110_uartmodemctl,
-	.baud=		sa1110_uartbaud,
-	.stop=		sa1110_uartstop,
-	.parity=	sa1110_uartparity,
-	.dobreak=	sa1110_uartbreak,
-	.rts=		sa1110_uartrts,
-	.dtr=		sa1110_uartdtr,
-	.status=	sa1110_uartstatus,
-	.power=		sa1110_uartpower,
-	.getc=		sa1110_getc,
-	.putc=		sa1110_putc,
-};
-
-/*
- *  for iprint, just write it
- */
-void
-serialµcputs(uchar *str, int n)
-{
-	Uartregs *ur;
-
-	if(µcuart == nil)
-		return;
-	ur = µcuart->regs;
-	while(n-- > 0){
-		/* wait for output ready */
-		while((ur->status[1] & Tnotfull) == 0)
-			;
-		ur->data = *str++;
-	}
-	while((ur->status[1] & Tbusy))
-		;
-}
-
-enum
-{
-	/* gpclk register 0 */
-	Gpclk_sus=	1<<0,	/* set uart mode */
-};
-
-Gpclkregs *gpclkregs;
-
-/*
- *  setup all uarts (called early by main() to allow debugging output to
- *  a serial port)
- */
-void
-sa1110_uartsetup(int console)
-{
-	Uart *p;
-
-	/* external serial port (eia0) */
-	p = &sa1110uart[0];
-	p->regs = mapspecial(UART3REGS, sizeof(Uartregs));
-	p->saveregs = xalloc(sizeof(Uartregs));
-	/* set eia0 up as a console */
-	if(console){
-		uartctl(p, "b115200 l8 pn s1");
-		(*p->phys->enable)(p, 0);
-		p->console = 1;
-		consuart = p;
-	}
-	intrenable(IRQ, IRQuart3, sa1110_uartintr, p, p->name);
-
-	/* port for talking to microcontroller (eia1) */
-	gpclkregs = mapspecial(GPCLKREGS, sizeof(Gpclkregs));
-	gpclkregs->r0 = Gpclk_sus;	/* set uart mode */
-
-	p = &sa1110uart[1];
-	p->regs = mapspecial(UART1REGS, sizeof(Uartregs));
-	p->saveregs = xalloc(sizeof(Uartregs));
-	uartctl(p, "b115200 l8 pn s1");
-	µcuart = p;
-	p->special = 1;
-	(*p->phys->enable)(p, 0);
-	intrenable(IRQ, IRQuart1b, sa1110_uartintr, p, p->name);
-}
-
-static  void
-uartcpy(Uartregs *to, Uartregs *from)
-{
-	to->ctl[0] = from->ctl[0];
-//	to->ctl[1] = from->ctl[1];
-//	to->ctl[2] = from->ctl[2];
-	to->ctl[3] = from->ctl[3];
-
-}
-
-static void
-sa1110_uartpower(Uart *p, int powerup)
-{
-	if (powerup) {
-		/* power up, restore the registers */
-		uartcpy(R(p), SR(p));
-		R(p)->status[0] = R(p)->status[0];
-	} else {
-		/* power down, save the registers */
-		uartcpy(SR(p), R(p));
-	}
-}