interrupts: new static IRQ API

The interrupt API has been redesigned:

- irq_connect() for dynamic interrupts renamed to irq_connect_dynamic().
  It will be used in situations where the new static irq_connect()
  won't work, i.e. the value of arguments can't be computed at build time
- a new API for static interrupts replaces irq_connect(). it is used
  exactly the same way as its dynamic counterpart. The old static irq
  macros will be removed
- Separate stub assembly files are no longer needed as the stubs are now
  generated inline with irq_connect()

ReST documentation updated for the changed API. Some detail about the
IDT in ROM added, and an oblique reference to the internal-only
_irq_handler_set() API removed; we don't talk about internal APIs in
the official documentation.

Change-Id: I280519993da0e0fe671eb537a876f67de33d3cd4
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>

4 files changed, 18 insertions, 61 deletions

diff --git a/drivers/rtc/Makefile b/drivers/rtc/Makefile
index 35115e65f..e1aa56b40 100644
--- a/drivers/rtc/Makefile
+++ b/drivers/rtc/Makefile
@@ -1,5 +1,4 @@
 ccflags-$(CONFIG_RTC_QMSI) += -I$(CONFIG_QMSI_INSTALL_PATH)/include
 
-obj-$(CONFIG_RTC) += rtc_static_irq_stubs.o
 obj-$(CONFIG_RTC_DW) += rtc_dw.o
 obj-$(CONFIG_RTC_QMSI) += rtc_qmsi.o
diff --git a/drivers/rtc/rtc_dw.c b/drivers/rtc/rtc_dw.c
index e10613716..4de8d21b7 100644
--- a/drivers/rtc/rtc_dw.c
+++ b/drivers/rtc/rtc_dw.c
@@ -189,23 +189,7 @@ static struct rtc_driver_api funcs = {
 	.set_alarm = rtc_dw_set_alarm,
 };
 
-/* IRQ_CONFIG needs the flags variable declared by IRQ_CONNECT_STATIC */
-IRQ_CONNECT_STATIC(rtc, CONFIG_RTC_IRQ,
-		   CONFIG_RTC_IRQ_PRI, rtc_dw_isr, 0, 0);
-
-int rtc_dw_init(struct device *dev)
-{
-	IRQ_CONFIG(rtc, CONFIG_RTC_IRQ);
-	irq_enable(CONFIG_RTC_IRQ);
-
-	_rtc_dw_int_unmask();
-
-	_rtc_dw_clock_config(dev);
-
-	dev->driver_api = &funcs;
-
-	return DEV_OK;
-}
+int rtc_dw_init(struct device *dev);
 
 struct rtc_dw_runtime rtc_runtime;
 
@@ -222,4 +206,18 @@ DECLARE_DEVICE_INIT_CONFIG(rtc, CONFIG_RTC_DRV_NAME,
 SYS_DEFINE_DEVICE(rtc, &rtc_runtime, SECONDARY,
 		  CONFIG_KERNEL_INIT_PRIORITY_DEVICE);
 
-struct device *rtc_dw_isr_dev = SYS_GET_DEVICE(rtc);
+int rtc_dw_init(struct device *dev)
+{
+	irq_connect(CONFIG_RTC_IRQ, CONFIG_RTC_IRQ_PRI, rtc_dw_isr,
+		    SYS_GET_DEVICE(rtc), 0);
+	irq_enable(CONFIG_RTC_IRQ);
+
+	_rtc_dw_int_unmask();
+
+	_rtc_dw_clock_config(dev);
+
+	dev->driver_api = &funcs;
+
+	return DEV_OK;
+}
+
diff --git a/drivers/rtc/rtc_qmsi.c b/drivers/rtc/rtc_qmsi.c
index d319a54e7..6b5d0dbb6 100644
--- a/drivers/rtc/rtc_qmsi.c
+++ b/drivers/rtc/rtc_qmsi.c
@@ -22,9 +22,6 @@
 
 #include "qm_rtc.h"
 
-IRQ_CONNECT_STATIC(rtc, CONFIG_RTC_IRQ, CONFIG_RTC_IRQ_PRI, qm_rtc_isr_0,
-		   0, IOAPIC_EDGE | IOAPIC_HIGH);
-
 static struct device *rtc_qmsi_dev;
 
 static void (*user_callback)(struct device *dev);
@@ -82,7 +79,8 @@ static struct rtc_driver_api api = {
 
 static int rtc_qmsi_init(struct device *dev)
 {
-	IRQ_CONFIG(rtc, CONFIG_RTC_IRQ);
+	irq_connect(CONFIG_RTC_IRQ, CONFIG_RTC_IRQ_PRI, qm_rtc_isr_0, 0,
+		    IOAPIC_EDGE | IOAPIC_HIGH);
 
 	/* Unmask RTC interrupt */
 	irq_enable(CONFIG_RTC_IRQ);
diff --git a/drivers/rtc/rtc_static_irq_stubs.S b/drivers/rtc/rtc_static_irq_stubs.S
deleted file mode 100644
index 516912d11..000000000
--- a/drivers/rtc/rtc_static_irq_stubs.S
+++ /dev/null
@@ -1,38 +0,0 @@
-/*
- * Copyright (c) 2015, Intel Corportation.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-
-#define _ASMLANGUAGE
-
-#include <arch/x86/asm.h>
-#include <drivers/ioapic.h>
-
-#if defined(CONFIG_RTC_DW)
-#if defined(CONFIG_IOAPIC) || defined(CONFIG_MVIC)
-	ioapic_mkstub rtc rtc_dw_isr rtc_dw_isr_dev
-#endif
-#endif
-
-#if defined(CONFIG_RTC_QMSI)
-#if defined(CONFIG_IOAPIC) || defined(CONFIG_MVIC)
-	ioapic_mkstub rtc qm_rtc_isr_0 0
-#endif
-#endif /* CONFIG_RTC_QMSI */
-
-/* externs (internal APIs) */
-
-GTEXT(_IntEnt)
-GTEXT(_IntExit)