LXR linux/include/linux/ssbi.h

   1/* Copyright (C) 2010 Google, Inc.
   2 * Copyright (c) 2011, Code Aurora Forum. All rights reserved.
   3 * Author: Dima Zavin <dima@android.com>
   4 *
   5 * This program is free software; you can redistribute it and/or modify
   6 * it under the terms of the GNU General Public License version 2 and
   7 * only version 2 as published by the Free Software Foundation.
   8 *
   9 * This program is distributed in the hope that it will be useful,
  10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 * GNU General Public License for more details.
  13 */
  14
  15#ifndef _LINUX_SSBI_H
  16#define _LINUX_SSBI_H
  17
  18#include <linux/types.h>
  19
  20int ssbi_write(struct device *dev, u16 addr, const u8 *buf, int len);
  21int ssbi_read(struct device *dev, u16 addr, u8 *buf, int len);
  22
  23static inline int
  24ssbi_reg_read(void *context, unsigned int reg, unsigned int *val)
  25{
  26        int ret;
  27        u8 v;
  28
  29        ret = ssbi_read(context, reg, &v, 1);
  30        if (!ret)
  31                *val = v;
  32
  33        return ret;
  34}
  35
  36static inline int
  37ssbi_reg_write(void *context, unsigned int reg, unsigned int val)
  38{
  39        u8 v = val;
  40        return ssbi_write(context, reg, &v, 1);
  41}
  42
  43#endif
  44