59 lines
2.3 KiB
C
59 lines
2.3 KiB
C
/*
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*
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* PATCHES MAGIC LEVEL PATCH THAT GOT US HERE
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* -------------------- ----- ----------------------
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* CURRENT PATCH LEVEL: 1 00162
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* -------------------- ----- ----------------------
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*
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* 26 May 93 Holger Veit added more 8042 defines
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*
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* Keyboard definitions
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*/
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/* Reference: IBM AT Technical Reference Manual,
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* pp. 1-38 to 1-43, 4-3 to 4-22
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*/
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/* commands sent to KBCMDP */
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#define KBC_CMDREAD 0x20 /* read kbd cntrl command byte */
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#define KBC_CMDWRITE 0x60 /* == LD_CMDBYTE in kd.h, write command */
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#define KBC_SELFTEST 0xAA /* perform self test, returns 55 when ok */
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#define KBC_IFTEST 0xAB /* perform interface test */
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#define KBC_DIAGDUMP 0xAC /* send 19 status bytes to system */
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#define KBC_DISKBD 0xAD /* disable keyboard */
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#define KBC_ENAKBD 0xAE /* enable keyboard */
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#define KBC_RDINP 0xC0 /* read input port */
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#define KBC_RDID 0xC4 /* read keyboard ID */
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#define KBC_RDOUTP 0xD0 /* read output port */
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#define KBC_WROUTP 0xD1 /* write output port */
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#define KBC_RDTINP 0xE0 /* read test inputs */
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/* commands sent to KBDATAP */
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#define KBC_STSIND 0xED /* set keyboard status indicators */
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#define KBC_ECHO 0xEE /* reply with 0xEE */
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#define KBC_SETTPM 0xF3 /* Set typematic rate/delay */
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#define KBC_ENABLE 0xF4 /* Start scanning */
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#define KBC_SETDEFD 0xF5 /* =KBC_SETDEF, but disable scanning */
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#define KBC_SETDEF 0xF6 /* Set power on defaults */
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#define KBC_RESEND 0xFE /* system wants keyboard to resend last code */
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#define KBC_RESET 0xFF /* Reset the keyboard */
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/* responses */
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#define KBR_OVERRUN 0x00 /* Keyboard flooded */
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#define KBR_STOK 0x55 /* Selftest ok response */
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#define KBR_IFOK 0x00 /* Interface test ok */
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#define KBR_IFCL_SA0 0x01 /* Clock Stuck-at-0 fault */
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#define KBR_IFCL_SA1 0x02 /* Clock Stuck-at-1 fault */
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#define KBR_IFDA_SA0 0x03 /* Data Stuck-at-0 fault */
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#define KBR_IFDA_SA1 0x04 /* Data Stuck-at-1 fault */
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#define KBR_RSTDONE 0xAA /* Keyboard reset (BAT) complete */
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#define KBR_E0 0xE0 /* Extended prefix */
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#define KBR_E1 0xE1 /* BREAK'S HIT :-( */
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#define KBR_ECHO 0xEE /* Echo response */
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#define KBR_F0 0xF0 /* Break code prefix */
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#define KBR_ACK 0xFA /* Keyboard did receive command */
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#define KBR_BATFAIL 0xFC /* BAT failed */
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#define KBR_DIAGFAIL 0xFD /* Diagnostic failed response */
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#define KBR_RESEND 0xFE /* Keyboard needs resend of command */
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