target/linux/ath79/files/include/mfd/rb4xx-cpld.h

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /*
   3  * CPLD driver for the MikroTik RouterBoard 4xx series
   4  *
   5  * Copyright (C) 2008-2011 Gabor Juhos <juhosg@openwrt.org>
   6  * Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
   7  * Copyright (C) 2015 Bert Vermeulen <bert@biot.com>
   8  * Copyright (C) 2020 Christopher Hill <ch6574@gmail.com>
   9  *
  10  * This file was based on the driver for Linux 2.6.22 published by
  11  * MikroTik for their RouterBoard 4xx series devices.
  12  */
  13 #include <linux/spi/spi.h>
  14
  15 struct rb4xx_cpld {
  16         struct spi_device *spi;
  17
  18         int (*write_nand)(struct rb4xx_cpld *self, const void *tx_buf,
  19                           unsigned int len);
  20         int (*read_nand)(struct rb4xx_cpld *self, void *rx_buf,
  21                          unsigned int len);
  22
  23         int (*gpio_set_0_7)(struct rb4xx_cpld *self, u8 values);
  24         int (*gpio_set_8)(struct rb4xx_cpld *self, u8 value);
  25 };