[PATCH 03/41] bsps/irq: Move handler iterate to separate file
Sebastian Huber
sebastian.huber at embedded-brains.de
Mon Jul 12 12:49:25 UTC 2021
Update #3269.
---
bsps/include/bsp/irq-generic.h | 57 ++++++++++++
bsps/shared/irq-default-sources.am | 1 +
bsps/shared/irq-sources.am | 1 +
bsps/shared/irq/irq-generic.c | 86 +-----------------
bsps/shared/irq/irq-handler-iterate.c | 96 ++++++++++++++++++++
c/src/lib/libbsp/m68k/genmcf548x/Makefile.am | 1 +
c/src/lib/libbsp/powerpc/ss555/Makefile.am | 1 +
spec/build/bsps/m68k/genmcf548x/obj.yml | 1 +
spec/build/bsps/objirq.yml | 1 +
spec/build/bsps/powerpc/ss555/bspss555.yml | 1 +
10 files changed, 164 insertions(+), 82 deletions(-)
create mode 100644 bsps/shared/irq/irq-handler-iterate.c
diff --git a/bsps/include/bsp/irq-generic.h b/bsps/include/bsp/irq-generic.h
index 8f7683c517..72c1d51332 100644
--- a/bsps/include/bsp/irq-generic.h
+++ b/bsps/include/bsp/irq-generic.h
@@ -322,6 +322,63 @@ void bsp_interrupt_lock(void);
/* For internal use only */
void bsp_interrupt_unlock(void);
+/**
+ * @brief This table contains a bit map which indicates if an entry is unique
+ * or shared.
+ *
+ * If the bit associated with a vector is set, then the entry is unique,
+ * otherwise it may be shared. If the bit with index
+ * #BSP_INTERRUPT_HANDLER_TABLE_SIZE is set, then the interrupt support is
+ * initialized, otherwise it is not initialized.
+ */
+extern uint8_t bsp_interrupt_handler_unique_table[];
+
+/**
+ * @brief Checks if the handler entry associated with the hander index is
+ * unique.
+ *
+ * @param index is the handler index to check.
+ *
+ * @return Returns true, if handler entry associated with the hander index is
+ * unique, otherwise false.
+ */
+static inline bool bsp_interrupt_is_handler_unique( rtems_vector_number index )
+{
+ rtems_vector_number table_index;
+ uint8_t bit;
+
+ table_index = index / 8;
+ bit = (uint8_t) ( 1U << ( index % 8 ) );
+
+ return ( bsp_interrupt_handler_unique_table[ table_index ] & bit ) != 0;
+}
+
+/**
+ * @brief Checks if the interrupt support is initialized.
+ *
+ * @return Returns true, if the interrupt support is initialized, otherwise
+ * false.
+ */
+static inline bool bsp_interrupt_is_initialized( void )
+{
+ return bsp_interrupt_is_handler_unique( BSP_INTERRUPT_HANDLER_TABLE_SIZE );
+}
+
+/**
+ * @brief This handler routine is used for empty entries.
+ */
+void bsp_interrupt_handler_empty( void *arg );
+
+/**
+ * @brief Checks if a handler entry is empty.
+ */
+static inline bool bsp_interrupt_is_empty_handler_entry(
+ const bsp_interrupt_handler_entry *entry
+)
+{
+ return entry->handler == bsp_interrupt_handler_empty;
+}
+
#ifdef __cplusplus
}
#endif /* __cplusplus */
diff --git a/bsps/shared/irq-default-sources.am b/bsps/shared/irq-default-sources.am
index 6b4696dd26..9f0e4686f7 100644
--- a/bsps/shared/irq-default-sources.am
+++ b/bsps/shared/irq-default-sources.am
@@ -2,6 +2,7 @@ librtemsbsp_a_SOURCES += ../../../../../../bsps/shared/irq/irq-affinity.c
librtemsbsp_a_SOURCES += ../../../../../../bsps/shared/irq/irq-default.c
librtemsbsp_a_SOURCES += ../../../../../../bsps/shared/irq/irq-default-handler.c
librtemsbsp_a_SOURCES += ../../../../../../bsps/shared/irq/irq-generic.c
+librtemsbsp_a_SOURCES += ../../../../../../bsps/shared/irq/irq-handler-iterate.c
librtemsbsp_a_SOURCES += ../../../../../../bsps/shared/irq/irq-info.c
librtemsbsp_a_SOURCES += ../../../../../../bsps/shared/irq/irq-lock.c
librtemsbsp_a_SOURCES += ../../../../../../bsps/shared/irq/irq-server.c
diff --git a/bsps/shared/irq-sources.am b/bsps/shared/irq-sources.am
index 65c380a2da..776958dd8f 100644
--- a/bsps/shared/irq-sources.am
+++ b/bsps/shared/irq-sources.am
@@ -1,5 +1,6 @@
librtemsbsp_a_SOURCES += ../../../../../../bsps/shared/irq/irq-affinity.c
librtemsbsp_a_SOURCES += ../../../../../../bsps/shared/irq/irq-generic.c
+librtemsbsp_a_SOURCES += ../../../../../../bsps/shared/irq/irq-handler-iterate.c
librtemsbsp_a_SOURCES += ../../../../../../bsps/shared/irq/irq-info.c
librtemsbsp_a_SOURCES += ../../../../../../bsps/shared/irq/irq-legacy.c
librtemsbsp_a_SOURCES += ../../../../../../bsps/shared/irq/irq-lock.c
diff --git a/bsps/shared/irq/irq-generic.c b/bsps/shared/irq/irq-generic.c
index bea6612136..81da647228 100644
--- a/bsps/shared/irq/irq-generic.c
+++ b/bsps/shared/irq/irq-generic.c
@@ -50,14 +50,14 @@ bsp_interrupt_handler_entry bsp_interrupt_handler_table
[BSP_INTERRUPT_HANDLER_TABLE_SIZE];
/* The last entry indicates if everything is initialized */
-static uint8_t bsp_interrupt_handler_unique_table
- [(BSP_INTERRUPT_HANDLER_TABLE_SIZE + 7 + 1) / 8];
+uint8_t bsp_interrupt_handler_unique_table
+ [ ( BSP_INTERRUPT_HANDLER_TABLE_SIZE + 7 + 1 ) / 8 ];
-static void bsp_interrupt_handler_empty(void *arg)
+void bsp_interrupt_handler_empty( void *arg )
{
rtems_vector_number vector = (rtems_vector_number) (uintptr_t) arg;
- bsp_interrupt_handler_default(vector);
+ bsp_interrupt_handler_default( vector );
}
#ifdef RTEMS_SMP
@@ -67,13 +67,6 @@ static void bsp_interrupt_handler_empty(void *arg)
}
#endif
-static inline bool bsp_interrupt_is_handler_unique(rtems_vector_number index)
-{
- rtems_vector_number i = index / 8;
- rtems_vector_number s = index % 8;
- return (bsp_interrupt_handler_unique_table [i] >> s) & 0x1;
-}
-
static inline void bsp_interrupt_set_handler_unique(
rtems_vector_number index,
bool unique
@@ -88,23 +81,11 @@ static inline void bsp_interrupt_set_handler_unique(
}
}
-static inline bool bsp_interrupt_is_initialized(void)
-{
- return bsp_interrupt_is_handler_unique(BSP_INTERRUPT_HANDLER_TABLE_SIZE);
-}
-
static inline void bsp_interrupt_set_initialized(void)
{
bsp_interrupt_set_handler_unique(BSP_INTERRUPT_HANDLER_TABLE_SIZE, true);
}
-static inline bool bsp_interrupt_is_empty_handler_entry(
- const bsp_interrupt_handler_entry *e
-)
-{
- return e->handler == bsp_interrupt_handler_empty;
-}
-
static inline void bsp_interrupt_clear_handler_entry(
bsp_interrupt_handler_entry *e,
rtems_vector_number vector
@@ -450,56 +431,6 @@ static rtems_status_code bsp_interrupt_handler_remove(
return RTEMS_SUCCESSFUL;
}
-/**
- * @brief Iterates over all installed interrupt handler of a vector.
- *
- * @ingroup bsp_interrupt
- *
- * @return In addition to the standard status codes this function returns
- * RTEMS_INTERNAL_ERROR if the BSP interrupt support is not initialized.
- *
- * @see rtems_interrupt_handler_iterate().
- */
-static rtems_status_code bsp_interrupt_handler_iterate(
- rtems_vector_number vector,
- rtems_interrupt_per_handler_routine routine,
- void *arg
-)
-{
- bsp_interrupt_handler_entry *current = NULL;
- rtems_option options = 0;
- rtems_vector_number index = 0;
-
- /* Check parameters and system state */
- if (!bsp_interrupt_is_initialized()) {
- return RTEMS_INTERNAL_ERROR;
- } else if (!bsp_interrupt_is_valid_vector(vector)) {
- return RTEMS_INVALID_ID;
- } else if (rtems_interrupt_is_in_progress()) {
- return RTEMS_CALLED_FROM_ISR;
- }
-
- /* Lock */
- bsp_interrupt_lock();
-
- /* Interate */
- index = bsp_interrupt_handler_index(vector);
- current = &bsp_interrupt_handler_table [index];
- if (!bsp_interrupt_is_empty_handler_entry(current)) {
- do {
- options = bsp_interrupt_is_handler_unique(index) ?
- RTEMS_INTERRUPT_UNIQUE : RTEMS_INTERRUPT_SHARED;
- routine(arg, current->info, options, current->handler, current->arg);
- current = current->next;
- } while (current != NULL);
- }
-
- /* Unlock */
- bsp_interrupt_unlock();
-
- return RTEMS_SUCCESSFUL;
-}
-
rtems_status_code rtems_interrupt_handler_install(
rtems_vector_number vector,
const char *info,
@@ -520,15 +451,6 @@ rtems_status_code rtems_interrupt_handler_remove(
return bsp_interrupt_handler_remove(vector, handler, arg);
}
-rtems_status_code rtems_interrupt_handler_iterate(
- rtems_vector_number vector,
- rtems_interrupt_per_handler_routine routine,
- void *arg
-)
-{
- return bsp_interrupt_handler_iterate(vector, routine, arg);
-}
-
bool bsp_interrupt_handler_is_empty(rtems_vector_number vector)
{
rtems_vector_number index = 0;
diff --git a/bsps/shared/irq/irq-handler-iterate.c b/bsps/shared/irq/irq-handler-iterate.c
new file mode 100644
index 0000000000..8adbdb4679
--- /dev/null
+++ b/bsps/shared/irq/irq-handler-iterate.c
@@ -0,0 +1,96 @@
+/* SPDX-License-Identifier: BSD-2-Clause */
+
+/**
+ * @file
+ *
+ * @ingroup bsp_interrupt
+ *
+ * @brief This source file contains the implementation of
+ * rtems_interrupt_handler_iterate().
+ */
+
+/*
+ * Copyright (C) 2017 embedded brains GmbH (http://www.embedded-brains.de)
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <bsp/irq-generic.h>
+
+/**
+ * @brief Iterates over all installed interrupt handler of a vector.
+ *
+ * @ingroup bsp_interrupt
+ *
+ * @return In addition to the standard status codes this function returns
+ * RTEMS_INTERNAL_ERROR if the BSP interrupt support is not initialized.
+ *
+ * @see rtems_interrupt_handler_iterate().
+ */
+static rtems_status_code bsp_interrupt_handler_iterate(
+ rtems_vector_number vector,
+ rtems_interrupt_per_handler_routine routine,
+ void *arg
+)
+{
+ bsp_interrupt_handler_entry *current = NULL;
+ rtems_option options = 0;
+ rtems_vector_number index = 0;
+
+ /* Check parameters and system state */
+ if (!bsp_interrupt_is_initialized()) {
+ return RTEMS_INTERNAL_ERROR;
+ } else if (!bsp_interrupt_is_valid_vector(vector)) {
+ return RTEMS_INVALID_ID;
+ } else if (rtems_interrupt_is_in_progress()) {
+ return RTEMS_CALLED_FROM_ISR;
+ }
+
+ /* Lock */
+ bsp_interrupt_lock();
+
+ /* Interate */
+ index = bsp_interrupt_handler_index(vector);
+ current = &bsp_interrupt_handler_table [index];
+ if (!bsp_interrupt_is_empty_handler_entry(current)) {
+ do {
+ options = bsp_interrupt_is_handler_unique(index) ?
+ RTEMS_INTERRUPT_UNIQUE : RTEMS_INTERRUPT_SHARED;
+ routine(arg, current->info, options, current->handler, current->arg);
+ current = current->next;
+ } while (current != NULL);
+ }
+
+ /* Unlock */
+ bsp_interrupt_unlock();
+
+ return RTEMS_SUCCESSFUL;
+}
+
+rtems_status_code rtems_interrupt_handler_iterate(
+ rtems_vector_number vector,
+ rtems_interrupt_per_handler_routine routine,
+ void *arg
+)
+{
+ return bsp_interrupt_handler_iterate(vector, routine, arg);
+}
diff --git a/c/src/lib/libbsp/m68k/genmcf548x/Makefile.am b/c/src/lib/libbsp/m68k/genmcf548x/Makefile.am
index 0ae30ca93a..88a1ab0e5b 100644
--- a/c/src/lib/libbsp/m68k/genmcf548x/Makefile.am
+++ b/c/src/lib/libbsp/m68k/genmcf548x/Makefile.am
@@ -40,6 +40,7 @@ librtemsbsp_a_SOURCES += ../../../../../../bsps/m68k/genmcf548x/btimer/btimer.c
# IRQ
librtemsbsp_a_SOURCES += ../../../../../../bsps/shared/irq/irq-affinity.c
librtemsbsp_a_SOURCES += ../../../../../../bsps/shared/irq/irq-default-handler.c
+librtemsbsp_a_SOURCES += ../../../../../../bsps/shared/irq/irq-handler-iterate.c
librtemsbsp_a_SOURCES += ../../../../../../bsps/shared/irq/irq-info.c
librtemsbsp_a_SOURCES += ../../../../../../bsps/shared/irq/irq-legacy.c
librtemsbsp_a_SOURCES += ../../../../../../bsps/shared/irq/irq-lock.c
diff --git a/c/src/lib/libbsp/powerpc/ss555/Makefile.am b/c/src/lib/libbsp/powerpc/ss555/Makefile.am
index 43fed4fcbd..e1a79a6293 100644
--- a/c/src/lib/libbsp/powerpc/ss555/Makefile.am
+++ b/c/src/lib/libbsp/powerpc/ss555/Makefile.am
@@ -50,6 +50,7 @@ librtemsbsp_a_SOURCES += ../../../../../../bsps/shared/irq/irq-affinity.c
librtemsbsp_a_SOURCES += ../../../../../../bsps/shared/irq/irq-default.c
librtemsbsp_a_SOURCES += ../../../../../../bsps/shared/irq/irq-default-handler.c
librtemsbsp_a_SOURCES += ../../../../../../bsps/shared/irq/irq-generic.c
+librtemsbsp_a_SOURCES += ../../../../../../bsps/shared/irq/irq-handler-iterate.c
librtemsbsp_a_SOURCES += ../../../../../../bsps/shared/irq/irq-info.c
librtemsbsp_a_SOURCES += ../../../../../../bsps/shared/irq/irq-lock.c
librtemsbsp_a_SOURCES += ../../../../../../bsps/shared/irq/irq-server.c
diff --git a/spec/build/bsps/m68k/genmcf548x/obj.yml b/spec/build/bsps/m68k/genmcf548x/obj.yml
index a318da5e93..252b350f70 100644
--- a/spec/build/bsps/m68k/genmcf548x/obj.yml
+++ b/spec/build/bsps/m68k/genmcf548x/obj.yml
@@ -40,6 +40,7 @@ source:
- bsps/shared/dev/getentropy/getentropy-cpucounter.c
- bsps/shared/irq/irq-affinity.c
- bsps/shared/irq/irq-default-handler.c
+- bsps/shared/irq/irq-handler-iterate.c
- bsps/shared/irq/irq-info.c
- bsps/shared/irq/irq-legacy.c
- bsps/shared/irq/irq-lock.c
diff --git a/spec/build/bsps/objirq.yml b/spec/build/bsps/objirq.yml
index cb4eeb8fd4..616a3ea83f 100644
--- a/spec/build/bsps/objirq.yml
+++ b/spec/build/bsps/objirq.yml
@@ -12,6 +12,7 @@ links: []
source:
- bsps/shared/irq/irq-affinity.c
- bsps/shared/irq/irq-generic.c
+- bsps/shared/irq/irq-handler-iterate.c
- bsps/shared/irq/irq-info.c
- bsps/shared/irq/irq-legacy.c
- bsps/shared/irq/irq-lock.c
diff --git a/spec/build/bsps/powerpc/ss555/bspss555.yml b/spec/build/bsps/powerpc/ss555/bspss555.yml
index 89c0ff7774..e011ceb9b5 100644
--- a/spec/build/bsps/powerpc/ss555/bspss555.yml
+++ b/spec/build/bsps/powerpc/ss555/bspss555.yml
@@ -71,6 +71,7 @@ source:
- bsps/shared/irq/irq-default-handler.c
- bsps/shared/irq/irq-default.c
- bsps/shared/irq/irq-generic.c
+- bsps/shared/irq/irq-handler-iterate.c
- bsps/shared/irq/irq-info.c
- bsps/shared/irq/irq-lock.c
- bsps/shared/irq/irq-server.c
--
2.26.2
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