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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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68 lines
1.9 KiB
C
68 lines
1.9 KiB
C
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/*
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* Maxim (Dallas) MAX3107/8 serial driver
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*
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* Copyright (C) 2012 Alexander Shiyan <shc_work@mail.ru>
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*
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* Based on max3100.c, by Christian Pellegrin <chripell@evolware.org>
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* Based on max3110.c, by Feng Tang <feng.tang@intel.com>
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* Based on max3107.c, by Aavamobile
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*/
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#ifndef _MAX310X_H_
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#define _MAX310X_H_
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/*
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* Example board initialization data:
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*
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* static struct max310x_pdata max3107_pdata = {
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* .driver_flags = MAX310X_EXT_CLK,
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* .uart_flags[0] = MAX310X_ECHO_SUPRESS | MAX310X_AUTO_DIR_CTRL,
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* .frequency = 3686400,
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* .gpio_base = -1,
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* };
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*
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* static struct spi_board_info spi_device_max3107[] = {
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* {
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* .modalias = "max3107",
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* .irq = IRQ_EINT3,
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* .bus_num = 1,
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* .chip_select = 1,
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* .platform_data = &max3107_pdata,
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* },
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* };
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*/
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#define MAX310X_MAX_UARTS 1
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/* MAX310X platform data structure */
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struct max310x_pdata {
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/* Flags global to driver */
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const u8 driver_flags:2;
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#define MAX310X_EXT_CLK (0x00000001) /* External clock enable */
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#define MAX310X_AUTOSLEEP (0x00000002) /* Enable AutoSleep mode */
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/* Flags global to UART port */
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const u8 uart_flags[MAX310X_MAX_UARTS];
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#define MAX310X_LOOPBACK (0x00000001) /* Loopback mode enable */
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#define MAX310X_ECHO_SUPRESS (0x00000002) /* Enable echo supress */
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#define MAX310X_AUTO_DIR_CTRL (0x00000004) /* Enable Auto direction
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* control (RS-485)
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*/
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/* Frequency (extrenal clock or crystal) */
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const int frequency;
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/* GPIO base number (can be negative) */
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const int gpio_base;
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/* Called during startup */
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void (*init)(void);
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/* Called before finish */
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void (*exit)(void);
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/* Suspend callback */
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void (*suspend)(int do_suspend);
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};
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#endif
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