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-rw-r--r--bsps/i386/include/bsp/irq.h96
1 files changed, 96 insertions, 0 deletions
diff --git a/bsps/i386/include/bsp/irq.h b/bsps/i386/include/bsp/irq.h
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index 0000000000..f7e673c8a7
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+++ b/bsps/i386/include/bsp/irq.h
@@ -0,0 +1,96 @@
+/**
+ * @file
+ * @ingroup i386_irq
+ * @brief Interrupt handlers
+ */
+
+/* irq.h
+ *
+ * This include file describe the data structure and the functions implemented
+ * by rtems to write interrupt handlers.
+ *
+ * CopyRight (C) 1998 valette@crf.canon.fr
+ *
+ * This code is heavilly inspired by the public specification of STREAM V2
+ * that can be found at :
+ *
+ * <http://www.chorus.com/Documentation/index.html> by following
+ * the STREAM API Specification Document link.
+ *
+ * The license and distribution terms for this file may be
+ * found in the file LICENSE in this distribution or at
+ * http://www.rtems.org/license/LICENSE.
+ */
+
+/**
+ * @defgroup i386_irq Interrupt handlers
+ * @ingroup i386_shared
+ * @brief Data structure and the functions to write interrupt handlers
+ * @{
+ */
+
+#ifndef _IRQ_H_
+#define _IRQ_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/** @brief
+ * Include some preprocessor value also used by assember code
+ */
+
+#include <bsp/irq_asm.h>
+#include <rtems.h>
+#define BSP_SHARED_HANDLER_SUPPORT 1
+#include <rtems/irq.h>
+#include <rtems/irq-extension.h>
+
+/*-------------------------------------------------------------------------+
+| Constants
++--------------------------------------------------------------------------*/
+
+/** @brief Base vector for our IRQ handlers. */
+#define BSP_IRQ_VECTOR_BASE BSP_ASM_IRQ_VECTOR_BASE
+#define BSP_IRQ_LINES_NUMBER 16
+#define BSP_IRQ_MAX_ON_i8259A (BSP_IRQ_LINES_NUMBER - 1)
+
+/*
+ * Define the number of valid vectors. This is different to the number of IRQ
+ * signals supported. Use this value to allocation vector data or range check.
+ */
+#define BSP_IRQ_VECTOR_NUMBER 17
+#define BSP_IRQ_VECTOR_LOWEST_OFFSET 0
+#define BSP_IRQ_VECTOR_MAX_OFFSET (BSP_IRQ_VECTOR_NUMBER - 1)
+
+/** @brief
+ * Interrupt offset in comparison to BSP_ASM_IRQ_VECTOR_BASE
+ * NB : 1) Interrupt vector number in IDT = offset + BSP_ASM_IRQ_VECTOR_BASE
+ * 2) The same name should be defined on all architecture
+ * so that handler connection can be unchanged.
+ */
+#define BSP_PERIODIC_TIMER 0 /* fixed on all builds of PC */
+#define BSP_KEYBOARD 1 /* fixed on all builds of PC */
+#define BSP_UART_COM2_IRQ 3 /* fixed for ISA bus */
+#define BSP_UART_COM1_IRQ 4 /* fixed for ISA bus */
+#define BSP_UART_COM3_IRQ 5
+#define BSP_UART_COM4_IRQ 6
+#define BSP_RT_TIMER1 8
+#define BSP_RT_TIMER3 10
+#define BSP_SMP_IPI 16 /* not part of the ATPIC */
+
+#define BSP_INTERRUPT_VECTOR_MIN BSP_IRQ_VECTOR_LOWEST_OFFSET
+#define BSP_INTERRUPT_VECTOR_MAX BSP_IRQ_VECTOR_MAX_OFFSET
+
+/** @brief
+ * Type definition for RTEMS managed interrupts
+ */
+typedef unsigned short rtems_i8259_masks;
+
+/** @} */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _IRQ_H_ */