BSD 4_4 release

[unix-history] / usr / src / sys / tahoe / tahoe / cp.h

diff --git a/usr/src/sys/tahoe/tahoe/cp.h b/usr/src/sys/tahoe/tahoe/cp.h
index e1afbb7..c9db31d 100644 (file)
--- a/usr/src/sys/tahoe/tahoe/cp.h
+++ b/usr/src/sys/tahoe/tahoe/cp.h
@@ -1,31 +1,28 @@
-/*     cp.h    1.1     86/01/05        */
-/*     Console Processor Interface     */
-/*     Tahoe version, Nov. 1982        */
+/*
+ *     @(#)cp.h        7.1 (Berkeley) 5/21/88
+ */

 
 

-/****************************************/
-/*                                     */
-/*     Reduced DCB layout for byte     */
-/*     communication.                  */
-/*                                     */
-/****************************************/
+/*
+ * Tahoe console processor interface
+ */

 
 

+/*
+ * Reduced DCB layout for byte communication.
+ */

 #define        CPBUFLEN 200            /* Output buffer length */
 #ifndef        LOCORE
 #define        CPBUFLEN 200            /* Output buffer length */
 #ifndef        LOCORE

-struct cphdr
-{
+struct cphdr {

        char    cp_unit;        /* Done bit & unit # */
        char    cp_comm;        /* Command */
        short   cp_count;       /* Counter (when relevant) */
 };
 
        char    cp_unit;        /* Done bit & unit # */
        char    cp_comm;        /* Command */
        short   cp_count;       /* Counter (when relevant) */
 };
 

-struct cpdcb_o                 /* Output structure */
-{
+struct cpdcb_o {               /* Output structure */

        struct  cphdr   cp_hdr;
        char    cp_buf[CPBUFLEN]; /* Buffer for output or 'stty' */
 };
 
        struct  cphdr   cp_hdr;
        char    cp_buf[CPBUFLEN]; /* Buffer for output or 'stty' */
 };
 

-struct cpdcb_i                 /* Structure for input */
-{
+struct cpdcb_i {               /* Structure for input */

        struct  cphdr   cp_hdr;
        char    cpi_buf[4];     /* Buffer for input */
 };
        struct  cphdr   cp_hdr;
        char    cpi_buf[4];     /* Buffer for input */
 };


@@ -34,14 +31,29 @@ struct      cpdcb_i                 /* Structure for input */
 #define        CPDONE  0x80            /* 'Done' bit in cp_unit */
 #define        CPTAKE  0x40            /* CP 'ack' to this cpdcb */
 
 #define        CPDONE  0x80            /* 'Done' bit in cp_unit */
 #define        CPTAKE  0x40            /* CP 'ack' to this cpdcb */
 

-               /* Values for 'unit' */
-#define        CPUNIT  0               /* The CP itself */
-#define        CPCONS  1               /* Console line */
-#define        CPREMOT 2               /* Remote line */
+/* unit values */
+#define        CPUNIT  0               /* the CP itself */
+#define        CPCONS  1               /* console line */
+#define        CPREMOT 2               /* remote line */
+#define        CPCLOCK 4               /* realtime clock */

 
 

-               /* Values for 'command' */
+/* commands */

 #define        CPRESET 0
 #define        CPRESET 0

-#define        CPWRITE 1
-#define        CPREAD  2
-#define        CPSTTY  3
-#define        CPBOOT  4
+#define        CPWRITE 1               /* write device or register */
+#define        CPREAD  2               /* read device or register */
+#define        CPSTTY  3               /* set terminal configuration */
+#define        CPBOOT  4               /* reboot system */
+
+/*
+ *     CP specific locations
+ */
+#define        CPBFLG  0xc0000500      /* System bootflag flags */
+#define        CPYFLG  0xc0000504      /* Copy of the Y flag */
+#define        CPOPTS  0xc0000508      /* copy of CP options */
+#define CPRSRV 0xc000050c      /* reserved for CP usage */
+#define        CPBDEV  0xc0000510      /* Bootstrap device, saved on boot */
+#define        CPEDEV  0xc000052f      /* End of device name */
+
+#if !defined(LOCORE) && defined(KERNEL)
+struct cphdr *cnlast;          /* last command sent to cp */
+#endif