xnu-792.6.61.tar.gz

[apple/xnu.git] / bsd / dev / ppc / km.c

diff --git a/bsd/dev/ppc/km.c b/bsd/dev/ppc/km.c
index ea1a6558bbedfb86e5b8af40687ea084f5dc9f6d..db5d951691c903f672d22b18696908c5f48390c6 100644 (file)
--- a/bsd/dev/ppc/km.c
+++ b/bsd/dev/ppc/km.c
@@ -3,22 +3,19 @@
  *
  * @APPLE_LICENSE_HEADER_START@
  * 
  *
  * @APPLE_LICENSE_HEADER_START@
  * 

- * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
+ * The contents of this file constitute Original Code as defined in and
+ * are subject to the Apple Public Source License Version 1.1 (the
+ * "License").  You may not use this file except in compliance with the
+ * License.  Please obtain a copy of the License at
+ * http://www.apple.com/publicsource and read it before using this file.

  * 
  * 

- * This file contains Original Code and/or Modifications of Original Code
- * as defined in and that are subject to the Apple Public Source License
- * Version 2.0 (the 'License'). You may not use this file except in
- * compliance with the License. Please obtain a copy of the License at
- * http://www.opensource.apple.com/apsl/ and read it before using this
- * file.
- * 
- * The Original Code and all software distributed under the License are
- * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * This Original Code and all software distributed under the License are
+ * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER

  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,

- * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
- * Please see the License for the specific language governing rights and
- * limitations under the License.
+ * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
+ * License for the specific language governing rights and limitations
+ * under the License.

  * 
  * @APPLE_LICENSE_HEADER_END@
  */
  * 
  * @APPLE_LICENSE_HEADER_END@
  */


@@ -29,7 +26,7 @@
  * HISTORY
  */
 
  * HISTORY
  */
 

-#include <sys/param.h>
+#include <sys/kernel.h>

 #include <sys/tty.h>
 
 #include <dev/ppc/cons.h>
 #include <sys/tty.h>
 
 #include <dev/ppc/cons.h>


@@ -47,7 +44,6 @@
 /*
  * 'Global' variables, shared only by this file and conf.c.
  */
 /*
  * 'Global' variables, shared only by this file and conf.c.
  */

-extern struct tty      cons;

 struct tty *km_tty[1] = { &cons };
 
 /*
 struct tty *km_tty[1] = { &cons };
 
 /*


@@ -56,10 +52,23 @@ struct tty *km_tty[1] = { &cons };
  */
 int disableConsoleOutput;
 
  */
 int disableConsoleOutput;
 

-/*
- * 'Global' variables, shared only by this file and kmDevice.m.
- */
-int initialized = 0;
+static int initialized = 0;
+
+// Function prototypes
+extern d_open_t         kmopen;
+extern d_close_t        kmclose;
+extern d_read_t         kmread;
+extern d_write_t        kmwrite;
+extern d_ioctl_t        kmioctl;
+extern d_getc_t         kmgetc;
+extern d_putc_t         kmputc;
+
+extern void kminit(void);
+
+// used by or implemented in the osfmk project
+extern void cnputcusr(char);           // From osfmk
+extern int  cngetc(void);              // From osfmk
+extern void cons_cinput(char ch);      // Used by osfmk

 
 static int kmoutput(struct tty *tp);
 static void kmtimeout(struct tty *tp);
 
 static int kmoutput(struct tty *tp);
 static void kmtimeout(struct tty *tp);


@@ -67,7 +76,8 @@ static void kmstart(struct tty *tp);
 
 extern void KeyboardOpen(void);
 
 
 extern void KeyboardOpen(void);
 

-int kminit()
+void
+kminit(void)

 {
         cons.t_dev = makedev(12, 0);
        initialized = 1;
 {
         cons.t_dev = makedev(12, 0);
        initialized = 1;


@@ -76,13 +86,8 @@ int kminit()
  * cdevsw interface to km driver.
  */
 int 
  * cdevsw interface to km driver.
  */
 int 

-kmopen(
-       dev_t dev, 
-       int flag,
-       int devtype, 
-       struct proc *pp)
+kmopen(dev_t dev, int flag, __unused int devtype, struct proc *pp)

 {
 {

-       int rtn;

        int unit;
        struct tty *tp;
        struct winsize *wp;
        int unit;
        struct tty *tp;
        struct winsize *wp;


@@ -105,7 +110,7 @@ kmopen(
                tp->t_ispeed = tp->t_ospeed = TTYDEF_SPEED;
                termioschars(&tp->t_termios);
                ttsetwater(tp);
                tp->t_ispeed = tp->t_ospeed = TTYDEF_SPEED;
                termioschars(&tp->t_termios);
                ttsetwater(tp);

-       } else if ((tp->t_state & TS_XCLUDE) && pp->p_ucred->cr_uid != 0)
+       } else if ((tp->t_state & TS_XCLUDE) && proc_suser(pp))

                return EBUSY;
 
        tp->t_state |= TS_CARR_ON; /* lie and say carrier exists and is on. */
                return EBUSY;
 
        tp->t_state |= TS_CARR_ON; /* lie and say carrier exists and is on. */


@@ -136,11 +141,8 @@ kmopen(
 }
 
 int 
 }
 
 int 

-kmclose(
-       dev_t dev, 
-       int flag,
-       int mode,
-       struct proc *p)
+kmclose(__unused dev_t dev, __unused int flag, __unused int mode,
+       __unused struct proc *p)

 {
         
        struct tty *tp;
 {
         
        struct tty *tp;


@@ -152,10 +154,7 @@ kmclose(
 }
 
 int 
 }
 
 int 

-kmread(
-       dev_t dev, 
-       struct uio *uio,
-       int ioflag)
+kmread(__unused dev_t dev, struct uio *uio, int ioflag)

 {
        register struct tty *tp;
  
 {
        register struct tty *tp;
  


@@ -164,10 +163,7 @@ kmread(
 }
 
 int 
 }
 
 int 

-kmwrite(
-       dev_t dev, 
-       struct uio *uio,
-       int ioflag)
+kmwrite(__unused dev_t dev, struct uio *uio, int ioflag)

 {
        register struct tty *tp;
  
 {
        register struct tty *tp;
  


@@ -176,11 +172,7 @@ kmwrite(
 }
 
 int 
 }
 
 int 

-kmioctl(
-       dev_t dev, 
-       int cmd, 
-       caddr_t data, 
-       int flag,
+kmioctl( __unused dev_t dev, u_long cmd, caddr_t data, int flag,

        struct proc *p)
 {
        int error;
        struct proc *p)
 {
        int error;


@@ -213,22 +205,14 @@ kmioctl(
            }
            default:            
                error = (*linesw[tp->t_line].l_ioctl)(tp, cmd, data, flag, p);
            }
            default:            
                error = (*linesw[tp->t_line].l_ioctl)(tp, cmd, data, flag, p);

-               if (error >= 0) {
+               if (ENOTTY != error)

                        return error;
                        return error;

-               }
-               error = ttioctl (tp, cmd, data, flag, p);
-               if (error >= 0) {
-                       return error;
-               }
-               else {
-                       return ENOTTY;
-               }
+               return ttioctl (tp, cmd, data, flag, p);

        }
 }
 
 int 
        }
 }
 
 int 

-kmputc(
-       int c)
+kmputc(__unused dev_t dev, char c)

 {
 
        if( disableConsoleOutput)
 {
 
        if( disableConsoleOutput)


@@ -246,8 +230,7 @@ kmputc(
 }
 
 int 
 }
 
 int 

-kmgetc(
-       dev_t dev)
+kmgetc(__unused dev_t dev)

 {
        int c;
        
 {
        int c;
        


@@ -260,9 +243,10 @@ kmgetc(
        return c;
 }
 
        return c;
 }
 

+#if 0

 int 
 kmgetc_silent(
 int 
 kmgetc_silent(

-       dev_t dev)
+       __unused dev_t dev)

 {
        int c;
        
 {
        int c;
        


@@ -272,6 +256,7 @@ kmgetc_silent(
        }
        return c;
 }
        }
        return c;
 }

+#endif /* 0 */

 
 /*
  * Callouts from linesw.
 
 /*
  * Callouts from linesw.


@@ -280,38 +265,23 @@ kmgetc_silent(
 #define KM_LOWAT_DELAY ((ns_time_t)1000)
 
 static void 
 #define KM_LOWAT_DELAY ((ns_time_t)1000)
 
 static void 

-kmstart(
-       struct tty *tp)
+kmstart(struct tty *tp)

 {
 {

-       extern int hz;

        if (tp->t_state & (TS_TIMEOUT | TS_BUSY | TS_TTSTOP))
                goto out;
        if (tp->t_outq.c_cc == 0)
                goto out;
        tp->t_state |= TS_BUSY;
        if (tp->t_state & (TS_TIMEOUT | TS_BUSY | TS_TTSTOP))
                goto out;
        if (tp->t_outq.c_cc == 0)
                goto out;
        tp->t_state |= TS_BUSY;

-       if (tp->t_outq.c_cc > tp->t_lowat) {
-               /*
-                * Start immediately.
-                */
-               kmoutput(tp);
-       }
-       else {
-               /*
-                * Wait a bit...
-                */
-#if 0
-               /* FIXME */
-               timeout(kmtimeout, tp, hz);
-#else
-               kmoutput(tp);
-#endif
-       }
+       kmoutput(tp);
+       return;
+

 out:
 out:

-       ttwwakeup(tp);
+       (*linesw[tp->t_line].l_start)(tp);
+       return;

 }
 
 static void
 }
 
 static void

-kmtimeout( struct tty *tp)
+kmtimeout(struct tty *tp)

 {
        boolean_t       funnel_state;
 
 {
        boolean_t       funnel_state;
 


@@ -322,8 +292,7 @@ kmtimeout( struct tty *tp)
 
 }
 static int 
 
 }
 static int 

-kmoutput(
-       struct tty *tp)
+kmoutput(struct tty *tp)

 {
        /*
         * FIXME - to be grokked...copied from m68k km.c.
 {
        /*
         * FIXME - to be grokked...copied from m68k km.c.


@@ -331,8 +300,6 @@ kmoutput(
        char            buf[80];
        char            *cp;
        int             cc = -1;
        char            buf[80];
        char            *cp;
        int             cc = -1;

-       extern int hz;
-

 
        while (tp->t_outq.c_cc > 0) {
                cc = ndqb(&tp->t_outq, 0);
 
        while (tp->t_outq.c_cc > 0) {
                cc = ndqb(&tp->t_outq, 0);


@@ -340,25 +307,22 @@ kmoutput(
                        break;
                cc = min(cc, sizeof buf);
                (void) q_to_b(&tp->t_outq, buf, cc);
                        break;
                cc = min(cc, sizeof buf);
                (void) q_to_b(&tp->t_outq, buf, cc);

-               for (cp = buf; cp < &buf[cc]; cp++) {
-                   kmputc(*cp & 0x7f);
-               }
+               for (cp = buf; cp < &buf[cc]; cp++)
+                   kmputc(tp->t_dev, *cp & 0x7f);

        }
         if (tp->t_outq.c_cc > 0) {
                timeout((timeout_fcn_t)kmtimeout, tp, hz);
        }
        tp->t_state &= ~TS_BUSY;
        }
         if (tp->t_outq.c_cc > 0) {
                timeout((timeout_fcn_t)kmtimeout, tp, hz);
        }
        tp->t_state &= ~TS_BUSY;

-       ttwwakeup(tp);
+       (*linesw[tp->t_line].l_start)(tp);

 
        return 0;
 }
 
        return 0;
 }

-cons_cinput(char ch)
+
+void cons_cinput(char ch)

 {
        struct tty *tp = &cons;
 {
        struct tty *tp = &cons;

-       boolean_t       funnel_state;
-

        
        (*linesw[tp->t_line].l_rint) (ch, tp);
        
        (*linesw[tp->t_line].l_rint) (ch, tp);

-

 }
 
 }