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pnp: Add some default functions to enter/exit config state

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Implement some common default functions to enter and exit the
configuration state. Also provide default pnp_mode_ops for common
enter()/exit() function pairs.

The following cocci ensures their use:
    @ mode_match @
    identifier enter, exit, ops;
    @@
     struct pnp_mode_ops ops = {
             .enter_conf_mode  = enter,
             .exit_conf_mode   = exit,
     };

    @ enter_match_8787 @
    identifier mode_match.enter, dev;
    @@
     enter(...)
     {
             outb(0x87, dev->path.pnp.port);
             outb(0x87, dev->path.pnp.port);
     }

    @ depends on enter_match_8787 @
    identifier mode_match.enter, mode_match.ops;
    @@
     struct pnp_mode_ops ops = {
    -        .enter_conf_mode  = enter,
    +        .enter_conf_mode  = pnp_enter_conf_mode_8787,
     };

    @ enter_match_55 @
    identifier mode_match.enter, dev;
    @@
     enter(...)
     {
             outb(0x55, dev->path.pnp.port);
     }

    @ depends on enter_match_55 @
    identifier mode_match.enter, mode_match.ops;
    @@
     struct pnp_mode_ops ops = {
    -        .enter_conf_mode  = enter,
    +        .enter_conf_mode  = pnp_enter_conf_mode_55,
     };

    @ depends on enter_match_8787 || enter_match_55 @
    identifier mode_match.enter;
    @@
    -enter(...) {...}

    @ exit_match_aa @
    identifier mode_match.exit, dev;
    @@
     exit(...)
     {
             outb(0xaa, dev->path.pnp.port);
     }

    @ depends on exit_match_aa @
    identifier mode_match.exit, mode_match.ops;
    @@
     struct pnp_mode_ops ops = {
    -        .exit_conf_mode   = exit,
    +        .exit_conf_mode   = pnp_exit_conf_mode_aa,
     };

    @ depends on exit_match_aa @
    identifier mode_match.exit;
    @@
    -exit(...) {...}

    @ depends on enter_match_8787 || enter_match_55 || exit_match_aa @
    @@
     #include <device/pnp.h>
    +#include <superio/conf_mode.h>

    @ mode_match_55_aa @
    identifier ops;
    @@
     struct pnp_mode_ops ops = {
             .enter_conf_mode  = pnp_enter_conf_mode_55,
             .exit_conf_mode   = pnp_exit_conf_mode_aa,
     };

    @@
    identifier mode_match_55_aa.ops;
    @@
    -struct pnp_mode_ops ops = {...};

    @@
    identifier mode_match_55_aa.ops, devops;
    @@
     struct device_operations devops = {
    -        .ops_pnp_mode     = &ops,
    +        .ops_pnp_mode     = &pnp_conf_mode_55_aa,
     };

    @ mode_match_8787_aa @
    identifier ops;
    @@
     struct pnp_mode_ops ops = {
             .enter_conf_mode  = pnp_enter_conf_mode_8787,
             .exit_conf_mode   = pnp_exit_conf_mode_aa,
     };

    @@
    identifier mode_match_8787_aa.ops;
    @@
    -struct pnp_mode_ops ops = {...};

    @@
    identifier mode_match_8787_aa.ops, devops;
    @@
     struct device_operations devops = {
    -        .ops_pnp_mode     = &ops,
    +        .ops_pnp_mode     = &pnp_conf_mode_8787_aa,
     };

Change-Id: I1480336b54523cc95210d99cf31c1a0b3a14b464
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: http://review.coreboot.org/3484
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
This commit is contained in:
Nico Huber
2013-06-15 20:33:44 +02:00
committed by Nico Huber
parent abe6847cd2
commit 1c81128dcd
28 changed files with 136 additions and 451 deletions
Download Patch File Download Diff File Expand all files Collapse all files

50
src/superio/common/conf_mode.c Normal file
View File

@@ -0,0 +1,50 @@
/*
* This file is part of the coreboot project.
*
* Copyright (C) 2013 Nico Huber <nico.h@gmx.de>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <arch/io.h>
#include <device/device.h>
#include <superio/conf_mode.h>
/* Common enter/exit implementations */
void pnp_enter_conf_mode_55(device_t dev)
{
outb(0x55, dev->path.pnp.port);
}
void pnp_enter_conf_mode_8787(device_t dev)
{
outb(0x87, dev->path.pnp.port);
outb(0x87, dev->path.pnp.port);
}
void pnp_exit_conf_mode_aa(device_t dev)
{
outb(0xaa, dev->path.pnp.port);
}
const struct pnp_mode_ops pnp_conf_mode_55_aa = {
.enter_conf_mode = pnp_enter_conf_mode_55,
.exit_conf_mode = pnp_exit_conf_mode_aa,
};
const struct pnp_mode_ops pnp_conf_mode_8787_aa = {
.enter_conf_mode = pnp_enter_conf_mode_8787,
.exit_conf_mode = pnp_exit_conf_mode_aa,
};