/**
|
* @note Copyright (C) 2016 Philippe Gerum <rpm@xenomai.org>
|
*
|
* 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.
|
*
|
* You should have received a copy of the GNU General Public License
|
* along with this program; if not, write to the Free Software
|
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
|
*/
|
#ifndef _RTDM_SPI_DEVICE_H
|
#define _RTDM_SPI_DEVICE_H
|
|
#include <linux/list.h>
|
#include <linux/atomic.h>
|
#include <linux/mutex.h>
|
#include <rtdm/driver.h>
|
#include <rtdm/uapi/spi.h>
|
|
struct class;
|
struct rtdm_spi_master;
|
|
struct rtdm_spi_remote_slave {
|
u8 chip_select;
|
struct gpio_desc *cs_gpiod;
|
struct rtdm_device dev;
|
struct list_head next;
|
struct rtdm_spi_config config;
|
struct rtdm_spi_master *master;
|
atomic_t mmap_refs;
|
struct mutex ctl_lock;
|
};
|
|
static inline struct device *
|
slave_to_kdev(struct rtdm_spi_remote_slave *slave)
|
{
|
return rtdm_dev_to_kdev(&slave->dev);
|
}
|
|
int rtdm_spi_add_remote_slave(struct rtdm_spi_remote_slave *slave,
|
struct rtdm_spi_master *spim,
|
struct spi_device *spi);
|
|
void rtdm_spi_remove_remote_slave(struct rtdm_spi_remote_slave *slave);
|
|
#endif /* !_RTDM_SPI_DEVICE_H */
|
