Staging: comedi: remove RT code

This removes the unused RT code from the comedi subsystem.

A lot of drivers needed to then include interrupt.h on their own, as they
were picking it up through the comedi_rt.h inclusion.

Cc: Ian Abbott <abbotti@mev.co.uk>
Cc: Frank Mori Hess <fmhess@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 0 insertions, 113 deletions

diff --git a/drivers/staging/comedi/rt_pend_tq.c b/drivers/staging/comedi/rt_pend_tq.c
deleted file mode 100644
index f6e083d553d9..000000000000
--- a/drivers/staging/comedi/rt_pend_tq.c
+++ /dev/null
@@ -1,113 +0,0 @@
-#define __NO_VERSION__
-/* rt_pend_tq.c */
-#include <linux/kernel.h>
-#include <linux/errno.h>
-#include <linux/sched.h>
-#include "comedidev.h"	/* for rt spinlocks */
-#include "rt_pend_tq.h"
-#ifdef CONFIG_COMEDI_RTAI
-#include <rtai.h>
-#endif
-#ifdef CONFIG_COMEDI_FUSION
-#include <nucleus/asm/hal.h>
-#endif
-#ifdef CONFIG_COMEDI_RTL
-#include <rtl_core.h>
-#endif
-
-#ifdef standalone
-#include <linux/module.h>
-#define rt_pend_tq_init init_module
-#define rt_pend_tq_cleanup cleanup_module
-#endif
-
-volatile static struct rt_pend_tq rt_pend_tq[RT_PEND_TQ_SIZE];
-volatile static struct rt_pend_tq *volatile rt_pend_head = rt_pend_tq,
-	*volatile rt_pend_tail = rt_pend_tq;
-int rt_pend_tq_irq = 0;
-DEFINE_SPINLOCK(rt_pend_tq_lock);
-
-/* WARNING: following code not checked against race conditions yet. */
-#define INC_CIRCULAR_PTR (ptr, begin, size) do {if (++ (ptr)>= (begin)+ (size)) (ptr)= (begin); } while (0)
-#define DEC_CIRCULAR_PTR (ptr, begin, size) do {if (-- (ptr)< (begin)) (ptr)= (begin)+ (size)-1; } while (0)
-
-int rt_pend_call(void (*func) (int arg1, void *arg2), int arg1, void *arg2)
-{
-	unsigned long flags;
-
-	if (func == NULL)
-		return -EINVAL;
-	if (rt_pend_tq_irq <= 0)
-		return -ENODEV;
-	comedi_spin_lock_irqsave(&rt_pend_tq_lock, flags);
-	INC_CIRCULAR_PTR(rt_pend_head, rt_pend_tq, RT_PEND_TQ_SIZE);
-	if (rt_pend_head == rt_pend_tail) {
-		/* overflow, we just refuse to take this request */
-		DEC_CIRCULAR_PTR(rt_pend_head, rt_pend_tq, RT_PEND_TQ_SIZE);
-		comedi_spin_unlock_irqrestore(&rt_pend_tq_lock, flags);
-		return -EAGAIN;
-	}
-	rt_pend_head->func = func;
-	rt_pend_head->arg1 = arg1;
-	rt_pend_head->arg2 = arg2;
-	comedi_spin_unlock_irqrestore(&rt_pend_tq_lock, flags);
-#ifdef CONFIG_COMEDI_RTAI
-	rt_pend_linux_srq(rt_pend_tq_irq);
-#endif
-#ifdef CONFIG_COMEDI_FUSION
-	rthal_apc_schedule(rt_pend_tq_irq);
-#endif
-#ifdef CONFIG_COMEDI_RTL
-	rtl_global_pend_irq(rt_pend_tq_irq);
-
-#endif
-	return 0;
-}
-
-#ifdef CONFIG_COMEDI_RTAI
-void rt_pend_irq_handler(void)
-#elif defined(CONFIG_COMEDI_FUSION)
-void rt_pend_irq_handler(void *cookie)
-#elif defined(CONFIG_COMEDI_RTL)
-void rt_pend_irq_handler(int irq, void *dev)
-#endif
-{
-	while (rt_pend_head != rt_pend_tail) {
-		INC_CIRCULAR_PTR(rt_pend_tail, rt_pend_tq, RT_PEND_TQ_SIZE);
-		rt_pend_tail->func(rt_pend_tail->arg1, rt_pend_tail->arg2);
-	}
-}
-
-int rt_pend_tq_init(void)
-{
-	rt_pend_head = rt_pend_tail = rt_pend_tq;
-#ifdef CONFIG_COMEDI_RTAI
-	rt_pend_tq_irq = rt_request_srq(0, rt_pend_irq_handler, NULL);
-#endif
-#ifdef CONFIG_COMEDI_FUSION
-	rt_pend_tq_irq =
-		rthal_apc_alloc("comedi APC", rt_pend_irq_handler, NULL);
-#endif
-#ifdef CONFIG_COMEDI_RTL
-	rt_pend_tq_irq = rtl_get_soft_irq(rt_pend_irq_handler, "rt_pend_irq");
-#endif
-	if (rt_pend_tq_irq > 0)
-		printk("rt_pend_tq: RT bottom half scheduler initialized OK\n");
-	else
-		printk("rt_pend_tq: rtl_get_soft_irq failed\n");
-	return 0;
-}
-
-void rt_pend_tq_cleanup(void)
-{
-	printk("rt_pend_tq: unloading\n");
-#ifdef CONFIG_COMEDI_RTAI
-	rt_free_srq(rt_pend_tq_irq);
-#endif
-#ifdef CONFIG_COMEDI_FUSION
-	rthal_apc_free(rt_pend_tq_irq);
-#endif
-#ifdef CONFIG_COMEDI_RTL
-	free_irq(rt_pend_tq_irq, NULL);
-#endif
-}