/*
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* Analogy for Linux, Operation system facilities
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*
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* Copyright (C) 1997-2000 David A. Schleef <ds@schleef.org>
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* Copyright (C) 2008 Alexis Berlemont <alexis.berlemont@free.fr>
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*
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* Xenomai is free software; you can redistribute it and/or modify it
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* 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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* Xenomai is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with Xenomai; if not, write to the Free Software Foundation,
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* Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#ifndef _COBALT_RTDM_ANALOGY_RTDM_HELPERS_H
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#define _COBALT_RTDM_ANALOGY_RTDM_HELPERS_H
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#include <linux/fs.h>
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#include <linux/spinlock.h>
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#include <linux/sched.h>
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#include <linux/time.h>
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#include <linux/delay.h>
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#include <linux/interrupt.h>
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#include <linux/uaccess.h>
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#include <rtdm/driver.h>
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/* --- Trace section --- */
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#define A4L_PROMPT "Analogy: "
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#define RTDM_SUBCLASS_ANALOGY 0
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#define __a4l_err(fmt, args...) rtdm_printk(KERN_ERR A4L_PROMPT fmt, ##args)
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#define __a4l_warn(fmt, args...) rtdm_printk(KERN_WARNING A4L_PROMPT fmt, ##args)
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#ifdef CONFIG_XENO_DRIVERS_ANALOGY_DEBUG_FTRACE
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#define __a4l_info(fmt, args...) trace_printk(fmt, ##args)
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#else
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#define __a4l_info(fmt, args...) \
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rtdm_printk(KERN_INFO A4L_PROMPT "%s: " fmt, __FUNCTION__, ##args)
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#endif
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#ifdef CONFIG_XENO_DRIVERS_ANALOGY_DEBUG
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#ifdef CONFIG_XENO_DRIVERS_ANALOGY_DEBUG_FTRACE
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#define __a4l_dbg(level, debug, fmt, args...) \
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do { \
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if ((debug) >= (level)) \
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trace_printk(fmt, ##args); \
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} while (0)
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#else
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#define __a4l_dbg(level, debug, fmt, args...) \
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do { \
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if ((debug) >= (level)) \
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rtdm_printk(KERN_DEBUG A4L_PROMPT "%s: " fmt, __FUNCTION__ , ##args); \
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} while (0)
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#endif
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#define core_dbg CONFIG_XENO_DRIVERS_ANALOGY_DEBUG_LEVEL
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#define drv_dbg CONFIG_XENO_DRIVERS_ANALOGY_DRIVER_DEBUG_LEVEL
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#else /* !CONFIG_XENO_DRIVERS_ANALOGY_DEBUG */
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#define __a4l_dbg(level, debug, fmt, args...)
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#endif /* CONFIG_XENO_DRIVERS_ANALOGY_DEBUG */
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#define __a4l_dev_name(dev) \
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(dev->driver == NULL) ? "unattached dev" : dev->driver->board_name
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#define a4l_err(dev, fmt, args...) \
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__a4l_err("%s: " fmt, __a4l_dev_name(dev), ##args)
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#define a4l_warn(dev, fmt, args...) \
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__a4l_warn("%s: " fmt, __a4l_dev_name(dev), ##args)
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#define a4l_info(dev, fmt, args...) \
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__a4l_info("%s: " fmt, __a4l_dev_name(dev), ##args)
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#define a4l_dbg(level, debug, dev, fmt, args...) \
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__a4l_dbg(level, debug, "%s: " fmt, __a4l_dev_name(dev), ##args)
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/* --- Time section --- */
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static inline void a4l_udelay(unsigned int us)
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{
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rtdm_task_busy_sleep(((nanosecs_rel_t) us) * 1000);
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}
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/* Function which gives absolute time */
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nanosecs_abs_t a4l_get_time(void);
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/* Function for setting up the absolute time recovery */
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void a4l_init_time(void);
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/* --- IRQ section --- */
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#define A4L_IRQ_DISABLED 0
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typedef int (*a4l_irq_hdlr_t) (unsigned int irq, void *d);
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struct a4l_irq_descriptor {
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/* These fields are useful to launch the IRQ trampoline;
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that is the reason why a structure has been defined */
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a4l_irq_hdlr_t handler;
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unsigned int irq;
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void *cookie;
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rtdm_irq_t rtdm_desc;
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};
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int __a4l_request_irq(struct a4l_irq_descriptor * dsc,
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unsigned int irq,
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a4l_irq_hdlr_t handler,
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unsigned long flags, void *cookie);
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int __a4l_free_irq(struct a4l_irq_descriptor * dsc);
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/* --- Synchronization section --- */
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#define __NRT_WAITER 1
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#define __RT_WAITER 2
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#define __EVT_PDING 3
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struct a4l_sync {
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unsigned long status;
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rtdm_event_t rtdm_evt;
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rtdm_nrtsig_t nrt_sig;
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wait_queue_head_t wq;
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};
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#define a4l_select_sync(snc, slr, type, fd) \
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rtdm_event_select(&((snc)->rtdm_evt), slr, type, fd)
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int a4l_init_sync(struct a4l_sync * snc);
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void a4l_cleanup_sync(struct a4l_sync * snc);
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void a4l_flush_sync(struct a4l_sync * snc);
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int a4l_wait_sync(struct a4l_sync * snc, int rt);
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int a4l_timedwait_sync(struct a4l_sync * snc,
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int rt, unsigned long long ns_timeout);
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void a4l_signal_sync(struct a4l_sync * snc);
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#endif /* !_COBALT_RTDM_ANALOGY_RTDM_HELPERS_H */
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