/**
|
* @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_MASTER_H
|
#define _RTDM_SPI_MASTER_H
|
|
#include <rtdm/driver.h>
|
#include <rtdm/uapi/spi.h>
|
#include "spi-device.h"
|
|
struct class;
|
struct device_node;
|
struct rtdm_spi_master;
|
struct spi_master;
|
|
struct rtdm_spi_master_ops {
|
int (*open)(struct rtdm_spi_remote_slave *slave);
|
void (*close)(struct rtdm_spi_remote_slave *slave);
|
int (*configure)(struct rtdm_spi_remote_slave *slave);
|
void (*chip_select)(struct rtdm_spi_remote_slave *slave,
|
bool active);
|
int (*set_iobufs)(struct rtdm_spi_remote_slave *slave,
|
struct rtdm_spi_iobufs *p);
|
int (*mmap_iobufs)(struct rtdm_spi_remote_slave *slave,
|
struct vm_area_struct *vma);
|
void (*mmap_release)(struct rtdm_spi_remote_slave *slave);
|
int (*transfer_iobufs)(struct rtdm_spi_remote_slave *slave);
|
int (*transfer_iobufs_n)(struct rtdm_spi_remote_slave *slave, int len);
|
ssize_t (*write)(struct rtdm_spi_remote_slave *slave,
|
const void *tx, size_t len);
|
ssize_t (*read)(struct rtdm_spi_remote_slave *slave,
|
void *rx, size_t len);
|
struct rtdm_spi_remote_slave *(*attach_slave)
|
(struct rtdm_spi_master *master,
|
struct spi_device *spi);
|
void (*detach_slave)(struct rtdm_spi_remote_slave *slave);
|
};
|
|
struct rtdm_spi_master {
|
int subclass;
|
const struct rtdm_spi_master_ops *ops;
|
struct spi_controller *controller;
|
struct { /* Internal */
|
struct rtdm_driver driver;
|
struct class *devclass;
|
char *classname;
|
struct list_head slaves;
|
struct list_head next;
|
rtdm_lock_t lock;
|
rtdm_mutex_t bus_lock;
|
struct rtdm_spi_remote_slave *cs;
|
};
|
};
|
|
#define rtdm_spi_alloc_master(__dev, __type, __mptr) \
|
__rtdm_spi_alloc_master(__dev, sizeof(__type), \
|
offsetof(__type, __mptr)) \
|
|
struct rtdm_spi_master *
|
__rtdm_spi_alloc_master(struct device *dev, size_t size, int off);
|
|
int __rtdm_spi_setup_driver(struct rtdm_spi_master *master);
|
|
int rtdm_spi_add_master(struct rtdm_spi_master *master);
|
|
void rtdm_spi_remove_master(struct rtdm_spi_master *master);
|
|
#endif /* !_RTDM_SPI_MASTER_H */
|
