diff options
Diffstat (limited to 'os/js/superio.c')
| -rw-r--r-- | os/js/superio.c | 216 |
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); + } + } +} |