20060303

1 files changed, 216 insertions, 0 deletions

diff --git a/os/js/superio.c b/os/js/superio.c
new file mode 100644
index 00000000..e3030eab
--- /dev/null
+++ b/os/js/superio.c
@@ -0,0 +1,216 @@
+#include "u.h"
+#include "../port/lib.h"
+#include "mem.h"
+#include "dat.h"
+#include "fns.h"
+#include "io.h"
+
+
+enum
+{
+	 /* superio configuration registers */
+	SioFER =	0x0,		/* function enable register */
+	SioFAR =	0x1,		/* function address register */
+	SioPTR =	0x2,		/* power and test egister */
+	SioFCR =	0x3,		/* function control register */
+	SioPCR =	0x4,		/* printer control register */
+	SioKRR =	0x5,		/* keyboard and RTC control register */
+	SioPMC =	0x6,		/* power mgmt control register */
+	SioTUP =	0x7,		/* tape uart and parallel register */
+	SioSID =	0x8,		/* SuperIO ID register */
+	SioASC =	0x9,		/* Advanced SIO Config register */
+	SioCS0CF0 =	0xA,		/* Chip select 0 config register 0 */
+	SioCS0CF1 =	0xB,		/* Chip select 0 config register 1 */
+	SioCS1CF0 =	0xC,		/* Chip select 1 config register 0 */
+	SioCS1CF1 = 	0xD,		/* Chip select 1 config register 1 */
+
+	 /* FER bits */
+	PPTEnable = 	1<<0,
+	EnableUART1 = 	1<<1,
+	EnableUART2 = 	1<<2,
+	FDCEnable = 	1<<3,
+	FDC4 =	 	1<<4,
+	FDC2ndAddr = 	1<<5,
+	IDEEnable = 	1<<6,
+	IDE2ndAddr = 	1<<7,
+
+	 /* FAR bits */
+	PPTAddr =	3<<0,
+	UART1Addr = 	3<<2,
+	UART2Addr =	3<<4,
+	SelectCom3n4 = 	3<<6,
+
+	 /* PTR bits */
+	PWDN = 		1<<0,
+	ClkPWDN = 	1<<1,
+	PWDNSelect = 	1<<2,
+	IRQSelect = 	1<<3,
+	UART1Test = 	1<<4,
+	UART2Test = 	1<<5,
+	LockConfig = 	1<<6,
+	XtndPPTSelect =	1<<7,
+
+	 /* FCR bits */
+	MediaSense =	1<<0,
+	DatRateSelect =	1<<0,
+	IDENTSelect = 	1<<1,
+	PPTFloat = 	1<<3,
+	LogicalDrvXcg =	1<<4,	/* logical drive exchange */
+	EnaZeroWait = 	1<<5,	/* zero wait state enable *.
+
+	 /* PCR bits */
+	EPPEnable =	1<<0,
+	EPPVersionSel =	1<<1,
+	ECPEnable = 	1<<2,
+	ECPClkFreeze = 	1<<3,
+	PPTIntPolar = 	1<<5,
+	PPTIntIOCtl = 	1<<6,
+	RTCRamMask =	1<<7,
+
+	 /* KRR bits */
+	KBCEnable =	1<<0,
+	KBCSpeedCtl = 	1<<1,
+	EnaProgAccess =	1<<2,
+	RTCEnable = 	1<<3,
+	RTCClkTst = 	1<<4,
+	RAMSEL = 	1<<5,
+	EnaChipSelect =	1<<6,
+	KBCClkSource =	1<<7,
+
+	 /* PMC bits */
+	IDETriStCtl =	1<<0,
+	FDCTriStCtl = 	1<<1,
+	UARTTriStCtl = 	1<<2,
+	SelectiveLock =	1<<5,
+	PPTriStEna = 	1<<6,
+
+	 /* TUP bits */
+	EPPToutIntEna =	1<<2,
+
+	 /* SID bits are just data values */
+
+	 /* ASC bits */
+	IRQ5Select = 	1<<0,
+	DRATE0Select =	1<<0,
+	DRV2Select = 	1<<1,
+	DR23Select = 	1<<1,
+	EnhancedTDR = 	1<<2,
+	ECPCnfgABit3 = 	1<<5,
+	SystemOpMode0 =	1<<6,
+	SystemOpMode1 =	1<<7,
+
+	 /* CS0CF0 bits are LA0-LA7 */
+	 /* CS1CF0 bits are LA0-LA7 */
+	 /* CSxCF1 bits (x=0,1) */
+	HA8 =		1<<0,
+	HA9 = 		1<<1,
+	HA10 = 		1<<2,
+	EnaCSWr = 	1<<4,
+	EnaCSRd =	1<<5,
+	CSAdrDcode =	1<<6,	/* enable full addr decode */
+	CSSelectPin =	1<<7,	/* CS/CS0 and SYSCLK/CS1 select pin */
+};
+
+typedef struct SuperIO SuperIO;
+
+struct SuperIO
+{
+	ulong va;
+	uchar *index;	/* superio index register */
+	uchar *data;	/* superio data register */
+
+	uchar *mkctl;	/* superio mouse/kbd control register */
+	uchar *mkdata;	/* superio mouse/kbd data register */
+};
+
+
+static SuperIO sio;
+
+static void printstatus(uchar status);
+
+void
+superioinit(ulong va, uchar *sindex, uchar *sdata, uchar *mkctl, uchar *mkdata)
+{
+	sio.va = va;
+
+	sio.index = sindex;
+	sio.data = sdata;
+
+	sio.mkctl = mkctl;
+	sio.mkdata = mkdata;
+}
+
+
+ulong
+superiova(void)
+{
+	return sio.va;
+}
+
+enum
+{
+	OBF =		1<<0,
+	IBF =		1<<1,
+	SysFlag =	1<<2,
+	LastWrWasCmd = 	1<<3,
+	KbdEnabled =	1<<4,
+	FromMouse = 	1<<5,
+	Timeout = 	1<<6,
+	ParityError = 	1<<7
+};
+
+uchar
+superio_readctl(void)
+{
+	return *sio.mkctl;
+}
+
+uchar
+superio_readdata(void)
+{
+	return *sio.mkdata;
+}
+
+void
+superio_writectl(uchar val)
+{
+	*sio.mkctl = val;
+}
+
+void
+superio_writedata(uchar val)
+{
+	*sio.mkdata = val;
+}
+
+
+static  void
+printstatus(uchar status)
+{
+	print("0x%2.2ux = <",status);
+	if(status & OBF) print("OBF|");
+	if(status & IBF) print("IBF|");
+	if(status & SysFlag) print("SysFlag|"); 
+	if(status & LastWrWasCmd) print("LastWrWasCmd|");
+	if(status & KbdEnabled) print("KbdEnabled|"); 
+	if(status & FromMouse) print("FromMouse|");
+	if(status & Timeout) print("Timeout|"); 
+	if(status & ParityError) print("ParityErr|"); 
+	print(">");
+}
+
+void
+testit()
+{
+	uchar status;
+	uchar val;
+
+	for(;;) {
+		status = *sio.mkctl;
+		if(status&OBF) {
+			printstatus(status);
+			val = *sio.mkdata;
+			print(", data = 0x%2.2ux\n",val);
+		}
+	}
+}