serial_io.h

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    1 /*
    2  * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
    3  *
    4  * @APPLE_LICENSE_HEADER_START@
    5  * 
    6  * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
    7  * 
    8  * This file contains Original Code and/or Modifications of Original Code
    9  * as defined in and that are subject to the Apple Public Source License
   10  * Version 2.0 (the 'License'). You may not use this file except in
   11  * compliance with the License. Please obtain a copy of the License at
   12  * http://www.opensource.apple.com/apsl/ and read it before using this
   13  * file.
   14  * 
   15  * The Original Code and all software distributed under the License are
   16  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
   17  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
   18  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
   19  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
   20  * Please see the License for the specific language governing rights and
   21  * limitations under the License.
   22  * 
   23  * @APPLE_LICENSE_HEADER_END@
   24  */
   25 /*
   26  * @OSF_COPYRIGHT@
   27  */
   28 /*
   29  * @APPLE_FREE_COPYRIGHT@
   30  */
   31 
   32 
   33 #include <device/device_types.h>
   34 #include <mach_kdp.h>
   35 
   36 /*
   37  *      Console is on the Printer Port (chip channel 0)
   38  *      Debugger is on the Modem Port (chip channel 1)
   39  */
   40 
   41 #define CONSOLE_PORT    1
   42 
   43 struct scc_tty {
   44         char *          t_addr;         /* device pointer */
   45         int             t_dev;          /* device number */
   46         int             t_ispeed;       /* input speed */
   47         int             t_ospeed;       /* output speed */
   48         char            t_breakc;       /* character to deliver when 'break'
   49                                            condition received */
   50         int             t_flags;        /* mode flags */
   51         int             t_state;        /* current state */
   52         int             t_line;         /* fake line discipline number,
   53                                            for old drivers - always 0 */
   54         int             t_outofband;    /* current out-of-band events */
   55         int             t_outofbandarg; /* arg to first out-of-band event */
   56         int             t_nquoted;      /* number of quoted chars in inq */
   57         int             t_hiwater;      /* baud-rate limited high water mark */
   58         int             t_lowater;      /* baud-rate limited low water mark */
   59 };
   60 typedef struct scc_tty  *scc_tty_t;
   61 
   62 /*
   63  * function declarations for performing serial i/o
   64  * other functions below are declared in kern/misc_protos.h
   65  *    cnputc, cngetc, cnmaygetc
   66  */
   67 
   68 void initialize_serial(caddr_t scc_phys_base);
   69 
   70 extern int              scc_probe(void);
   71 
   72 #if 0
   73 extern int              scc_open(
   74                                 dev_t           dev,
   75                                 dev_mode_t      flag,
   76                                 io_req_t        ior);
   77 
   78 extern void             scc_close(
   79                                 dev_t           dev);
   80 
   81 extern int              scc_read(
   82                                 dev_t           dev,
   83                                 io_req_t        ior);
   84 
   85 extern io_return_t      scc_write(
   86                                 dev_t           dev,
   87                                 io_req_t        ior);
   88 
   89 extern io_return_t      scc_get_status(
   90                                 dev_t                   dev,
   91                                 dev_flavor_t            flavor,
   92                                 dev_status_t            data,
   93                                 mach_msg_type_number_t  *status_count);
   94 
   95 extern io_return_t      scc_set_status(
   96                                 dev_t                   dev,
   97                                 dev_flavor_t            flavor,
   98                                 dev_status_t            data,
   99                                 mach_msg_type_number_t  status_count);
  100 
  101 extern boolean_t        scc_portdeath(
  102                                 dev_t           dev,
  103                                 ipc_port_t      port);
  104 
  105 #endif /* 0 */
  106 
  107 extern int              scc_putc(
  108                                 int                     unit,
  109                                 int                     line,
  110                                 int                     c);
  111 
  112 extern int              scc_getc(
  113                                 int                     unit,
  114                                 int                     line,
  115                                 boolean_t               wait,
  116                                 boolean_t               raw);
  117 
  118 /* Functions in serial_console.c for switching between serial and video
  119    consoles.  */
  120 extern boolean_t        console_is_serial(void);
  121 extern int              switch_to_serial_console(
  122                                 void);
  123 
  124 extern int              switch_to_video_console(
  125                                 void);
  126 
  127 extern void             switch_to_old_console(
  128                                 int                     old_console);
  129 
  130 void serial_keyboard_init(void);
  131 void serial_keyboard_start(void);
  132 void serial_keyboard_poll(void);
  133 
  134 
  135 /*
  136  * JMM - We are not really going to support this driver in SMP (barely
  137  * support it now - so just pick up the stubbed out versions.
  138  */
  139 #define DECL_FUNNEL(class,f)
  140 #define DECL_FUNNEL_VARS
  141 #define FUNNEL_INIT(f,p)
  142 #define FUNNEL_ENTER(f)
  143 #define FUNNEL_EXIT(f)
  144 #define FUNNEL_ESCAPE(f)                (1)
  145 #define FUNNEL_REENTER(f,count)
  146 #define FUNNEL_IN_USE(f)                (TRUE)
  147 
  148 /*
  149  * Flags
  150  */
  151 #define TF_ODDP         0x00000002      /* get/send odd parity */
  152 #define TF_EVENP        0x00000004      /* get/send even parity */
  153 #define TF_ANYP         (TF_ODDP|TF_EVENP)
  154                                         /* get any parity/send none */
  155 #define TF_LITOUT       0x00000008      /* output all 8 bits
  156                                            otherwise, characters >= 0x80
  157                                            are time delays      XXX */
  158 #define TF_ECHO         0x00000080      /* device wants user to echo input */
  159 #define TS_MIN          0x00004000      /* buffer input chars, if possible */

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FreeBSD/Linux Kernel Cross Reference sys/osfmk/ppc/serial_io.h

FreeBSD/Linux Kernel Cross Reference
sys/osfmk/ppc/serial_io.h