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/*
* Maxim (Dallas) MAX3107/8/9, MAX14830 serial driver
*
* Copyright (C) 2012 Alexander Shiyan <shc_work@mail.ru>
*
* Based on max3100.c, by Christian Pellegrin <chripell@evolware.org>
* Based on max3110.c, by Feng Tang <feng.tang@intel.com>
* Based on max3107.c, by Aavamobile
*
* 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.
*/
#ifndef _MAX310X_H_
#define _MAX310X_H_
/*
* Example board initialization data:
*
* static struct max310x_pdata max3107_pdata = {
* .driver_flags = MAX310X_EXT_CLK,
* .uart_flags[0] = MAX310X_ECHO_SUPRESS | MAX310X_AUTO_DIR_CTRL,
* .frequency = 3686400,
* .gpio_base = -1,
* };
*
* static struct spi_board_info spi_device_max3107[] = {
* {
* .modalias = "max3107",
* .irq = IRQ_EINT3,
* .bus_num = 1,
* .chip_select = 1,
* .platform_data = &max3107_pdata,
* },
* };
*/
#define MAX310X_MAX_UARTS 4
/* MAX310X platform data structure */
struct max310x_pdata {
/* Flags global to driver */
const u8 driver_flags;
#define MAX310X_EXT_CLK (0x00000001) /* External clock enable */
/* Flags global to UART port */
const u8 uart_flags[MAX310X_MAX_UARTS];
#define MAX310X_LOOPBACK (0x00000001) /* Loopback mode enable */
#define MAX310X_ECHO_SUPRESS (0x00000002) /* Enable echo supress */
#define MAX310X_AUTO_DIR_CTRL (0x00000004) /* Enable Auto direction
* control (RS-485)
*/
/* Frequency (extrenal clock or crystal) */
const int frequency;
/* GPIO base number (can be negative) */
const int gpio_base;
/* Called during startup */
void (*init)(void);
/* Called before finish */
void (*exit)(void);
};
#endif