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bcm, bcm64: handle disk activity led from sdmmc

We don't want to blink the disk activity led for wifi,
so handle the disk activity LED from sdmmc when it
is actually used as a disk.

--- a/sys/src/9/bcm/emmc.c

+++ b/sys/src/9/bcm/emmc.c

@@ -409,11 +409,6 @@

 	int i;

 	assert((len&3) == 0);

-	okay(1);

-	if(waserror()){

-		okay(0);

-		nexterror();

-	}

 	if(write)

 		dmastart(DmaChanEmmc, DmaDevEmmc, DmaM2D,

 			buf, &r[Data], len);

@@ -439,8 +434,6 @@

 	}

 	if(i)

 		WR(Interrupt, i);

-	poperror();

-	okay(0);

 }

 static void

@@ -457,6 +450,11 @@

 	WR(Irpten, r[Irpten] & ~i);

 }

+static void

+emmcled(SDio*, int on)

+{

+	okay(on);

+}

 static SDio sdio = {

 	"emmc",

@@ -467,6 +465,7 @@

 	emmciosetup,

 	emmcio,

 	emmcbus,

+	emmcled,

 	emmccardintr,

 };

--- a/sys/src/9/bcm64/sdhc.c

+++ b/sys/src/9/bcm64/sdhc.c

@@ -452,7 +452,6 @@

 	else

 		cachedwbinvse(buf, len);

 	WR(Dmadesc, sdhc.busdram + (PADDR(sdhc.dma) - PHYSDRAM));

-	okay(1);

 }

 static void

@@ -461,10 +460,6 @@

 	u32int *r = (u32int*)SDHCREGS;

 	int i;

-	if(waserror()){

-		okay(0);

-		nexterror();

-	}

 	WR(Irpten, r[Irpten] | Datadone|Err);

 	tsleep(&sdhc.r, datadone, 0, 3000);

 	WR(Irpten, r[Irpten] & ~(Datadone|Err));

@@ -478,8 +473,6 @@

 	WR(Interrupt, i);

 	if(!write)

 		cachedinvse(buf, len);

-	poperror();

-	okay(0);

 }

 static void

@@ -494,6 +487,12 @@

 	WR(Irpten, r[Irpten] & ~i);

 }

+static void

+sdhcled(SDio*, int on)

+{

+	okay(on);

+}

+

 void

 sdhclink(void)

 {

@@ -506,6 +505,7 @@

 		sdhciosetup,

 		sdhcio,

 		sdhcbus,

+		sdhcled,

 	};

 	addmmcio(&io);

 }

--- a/sys/src/9/bcm64/sdhost.c

+++ b/sys/src/9/bcm64/sdhost.c

@@ -240,6 +240,12 @@

 		sdhosterror(i);

 }

+static void

+sdhostled(SDio*, int on)

+{

+	okay(on);

+}

+

 void

 sdhostlink(void)

 {

@@ -252,6 +258,7 @@

 		sdhostiosetup,

 		sdhostio,

 		sdhostbus,

+		sdhostled,

 	};

 	addmmcio(&io);

 }

--- a/sys/src/9/port/sd.h

+++ b/sys/src/9/port/sd.h

@@ -197,6 +197,7 @@

 	void	(*iosetup)(SDio*, int, void*, int, int);

 	void	(*io)(SDio*, int, uchar*, int);

 	void	(*bus)(SDio*, int, int);

+	void	(*led)(SDio*, int);

 	int	(*cardintr)(SDio*, int);

 	char	nomultiwrite;	/* quirk for usdhc */

 	void	*aux;

--- a/sys/src/9/port/sdmmc.c

+++ b/sys/src/9/port/sdmmc.c

@@ -675,9 +675,13 @@

 	eqlock(card);

 	if(waserror()){

+		if(io->led != nil)

+			(*io->led)(io, 0);

 		qunlock(card);

 		nexterror();

 	}

+	if(io->led != nil)

+		(*io->led)(io, 1);

 	if(card->ismmc && unit->subno != (card->ext_csd[179]&7)){

 		b = (card->ext_csd[179] & ~7) | unit->subno;

@@ -714,7 +718,8 @@

 			buf += len;

 		}

 	}

-

+	if(io->led != nil)

+		(*io->led)(io, 0);

 	qunlock(card);

 	poperror();