Files
system76-coreboot/src/superio/nuvoton/nct5104d/superio.c
Nico Huber 13dc976a52 pnp: Register implementations of enter/exit config state
Find all the (ramstage) implementations of enter()/exit() functions
for the configuration state, register and call them through the new
struct pnp_mode_ops. As our standard PnP functions are aware of the
pnp_mode_ops, it's not necessary to call enter()/exit() around them
anymore.

Patch generated with the cocci below. It's not perfect. The movement
of the enter()/exit() calls is somehow fragile. So I checked the
remaining calls for sense, and changed some empty lines. Also a
duplicate insertion of pnp_conf_mode_ops had to be removed.
    /* Try to find enter and exit functions by their outb() structure and
       their usage around calls to our standard pnp functions: */
    @ enter_match @
    identifier enter;
    identifier dev;
    type device_t;
    @@
     void enter(device_t dev)
     {
             <...
             outb(..., dev->path.pnp.port);
             ...>
     }

    @ exit_match @
    identifier exit;
    identifier dev;
    type device_t;
    @@
     void exit(device_t dev)
     {
             <...
             outb(..., dev->path.pnp.port);
             ...>
     }

    @ pnp_match @
    identifier op;
    identifier pnp_op =~ "^pnp_((alt_|)enable|(set|enable)_resources)$";
    identifier enter_match.enter, exit_match.exit;
    type device_t;
    identifier dev;
    @@
     void op(device_t dev)
     {
             ...
             enter(dev);
             ...
             pnp_op(dev);
             ...
             exit(dev);
             ...
     }

    /* Now add enter/exit to a pnp_mode_ops structure: */
    @ depends on pnp_match @
    identifier enter_match.enter;
    identifier exit_match.exit;
    identifier ops;
    @@
    +static const struct pnp_mode_ops pnp_conf_mode_ops = {
    +        .enter_conf_mode  = enter,
    +        .exit_conf_mode   = exit,
    +};
    +
     struct device_operations ops = {
             ...,
    +        .ops_pnp_mode     = &pnp_conf_mode_ops,
     };

    /* Match against the new structure as we change the code and the above
       matches might not work anymore: */
    @ mode_match @
    identifier enter, exit, ops;
    @@
     struct pnp_mode_ops ops = {
             .enter_conf_mode  = enter,
             .exit_conf_mode   = exit,
     };

    /* Replace enter()/enter() calls with new standard calls (e.g.
       pnp_enter_conf_mode()): */
    @@
    identifier mode_match.enter;
    expression e;
    @@
    -enter(e)
    +pnp_enter_conf_mode(e)

    @@
    identifier mode_match.exit;
    expression e;
    @@
    -exit(e)
    +pnp_exit_conf_mode(e)

    /* If there are calls to standard PnP functions, (re)move the
       enter()/exit() calls around them: */
    @@
    identifier pnp_op =~ "^pnp_((alt_|)enable|(set|enable)_resources)$";
    expression e;
    @@
    -pnp_enter_conf_mode(e);
     pnp_op(e);
    +pnp_enter_conf_mode(e);
     ...
     pnp_exit_conf_mode(e);

    @@
    identifier pnp_op =~ "^pnp_((alt_|)enable|(set|enable)_resources)$";
    expression e;
    @@
     pnp_enter_conf_mode(e);
     ...
    +pnp_exit_conf_mode(e);
     pnp_op(e);
    -pnp_exit_conf_mode(e);

    @@
    expression e;
    @@
    -pnp_enter_conf_mode(e);
    -pnp_exit_conf_mode(e);

Change-Id: I5c04b0c6a8f01a30bc25fe195797c02e75b6c276
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: http://review.coreboot.org/3482
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2013-06-17 21:42:06 +02:00

89 lines
2.4 KiB
C
Executable File

/*
* This file is part of the coreboot project.
*
* Copyright (C) 2011 Advanced Micro Devices, Inc.
*
* 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; either version 2 of the License, or
* (at your option) any later version.
*
* 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/pnp.h>
#include <stdlib.h>
#include "nct5104d.h"
static void pnp_enter_exteded_mode(device_t dev)
{
outb(0x87,dev->path.pnp.port);
outb(0x87,dev->path.pnp.port);
}
static void pnp_exit_extended_mode(device_t dev)
{
outb(0xaa,dev->path.pnp.port);
}
static void nct5104d_init(device_t dev)
{
}
static void nct5104d_pnp_set_resources(device_t dev)
{
pnp_set_resources(dev);
}
static void nct5104d_pnp_enable_resources(device_t dev)
{
pnp_enable_resources(dev);
}
static void nct5104d_pnp_enable(device_t dev)
{
pnp_alt_enable(dev);
}
static const struct pnp_mode_ops pnp_conf_mode_ops = {
.enter_conf_mode = pnp_enter_exteded_mode,
.exit_conf_mode = pnp_exit_extended_mode,
};
static struct device_operations ops = {
.read_resources = pnp_read_resources,
.set_resources = nct5104d_pnp_set_resources,
.enable_resources = nct5104d_pnp_enable_resources,
.enable = nct5104d_pnp_enable,
.init = nct5104d_init,
.ops_pnp_mode = &pnp_conf_mode_ops,
};
static struct pnp_info pnp_dev_info[] = {
{ &ops, NCT5104D_SP2, PNP_IO0 | PNP_IRQ0, {0x07f8, 0}, },
{ &ops, NCT5104D_SP1, PNP_IO0 | PNP_IRQ0, {0x07f8, 0}, },
{ &ops, NCT5104D_GPIO_WDT},
{ &ops, NCT5104D_GPIO_PP_OD},
{ &ops, NCT5104D_GPIO0},
{ &ops, NCT5104D_GPIO1},
{ &ops, NCT5104D_GPIO6},
};
static void enable_dev(struct device *dev)
{
pnp_enable_devices(dev, &ops, ARRAY_SIZE(pnp_dev_info), pnp_dev_info);
}
struct chip_operations superio_nuvoton_nct5104d_ops = {
CHIP_NAME("NUVOTON NCT5104D Super I/O")
.enable_dev = enable_dev,
};