linux-imx

/*

 * Driver for Nuvoton Technology Corporation w83667hg/w83677hg-i CIR

 *

 * Copyright (C) 2010 Jarod Wilson <jarod@redhat.com>

 * Copyright (C) 2009 Nuvoton PS Team

 *

 * Special thanks to Nuvoton for providing hardware, spec sheets and

 * sample code upon which portions of this driver are based. Indirect

 * thanks also to Maxim Levitsky, whose ene_ir driver this driver is

 * modeled after.

 *

 * 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.

 */

​

#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt

​

#include <linux/kernel.h>

#include <linux/module.h>

#include <linux/pnp.h>

#include <linux/io.h>

#include <linux/interrupt.h>

#include <linux/sched.h>

#include <linux/slab.h>

#include <media/rc-core.h>

#include <linux/pci_ids.h>

​

#include "nuvoton-cir.h"

​

static void nvt_clear_cir_wake_fifo(struct nvt_dev *nvt);

​

static const struct nvt_chip nvt_chips[] = {

    { "w83667hg", NVT_W83667HG },

    { "NCT6775F", NVT_6775F },

    { "NCT6776F", NVT_6776F },

    { "NCT6779D", NVT_6779D },

};

​

static inline struct device *nvt_get_dev(const struct nvt_dev *nvt)

{

    return nvt->rdev->dev.parent;

}

​

static inline bool is_w83667hg(struct nvt_dev *nvt)

{

    return nvt->chip_ver == NVT_W83667HG;

}

​

/* write val to config reg */

static inline void nvt_cr_write(struct nvt_dev *nvt, u8 val, u8 reg)

{

    outb(reg, nvt->cr_efir);

    outb(val, nvt->cr_efdr);

}

​

/* read val from config reg */