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kernel add
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/*
* Copyright 2011 Florian Tobias Schandinat <FlorianSchandinat@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;
* either version 2, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTIES OR REPRESENTATIONS; 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.,
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
/*
* infrastructure for devices connected via I2C
*/
#include <linux/slab.h>
#include "via_aux.h"
struct via_aux_bus *via_aux_probe(struct i2c_adapter *adap)
{
struct via_aux_bus *bus;
if (!adap)
return NULL;
bus = kmalloc(sizeof(*bus), GFP_KERNEL);
if (!bus)
return NULL;
bus->adap = adap;
INIT_LIST_HEAD(&bus->drivers);
via_aux_edid_probe(bus);
via_aux_vt1636_probe(bus);
via_aux_vt1632_probe(bus);
via_aux_vt1631_probe(bus);
via_aux_vt1625_probe(bus);
via_aux_vt1622_probe(bus);
via_aux_vt1621_probe(bus);
via_aux_sii164_probe(bus);
via_aux_ch7301_probe(bus);
return bus;
}
void via_aux_free(struct via_aux_bus *bus)
{
struct via_aux_drv *pos, *n;
if (!bus)
return;
list_for_each_entry_safe(pos, n, &bus->drivers, chain) {
if (pos->cleanup)
pos->cleanup(pos);
list_del(&pos->chain);
kfree(pos->data);
kfree(pos);
}
kfree(bus);
}
const struct fb_videomode *via_aux_get_preferred_mode(struct via_aux_bus *bus)
{
struct via_aux_drv *pos;
const struct fb_videomode *mode = NULL;
if (!bus)
return NULL;
list_for_each_entry(pos, &bus->drivers, chain) {
if (pos->get_preferred_mode)
mode = pos->get_preferred_mode(pos);
}
return mode;
}
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