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authorChris Johns <chrisj@rtems.org>2017-12-23 18:18:56 +1100
committerSebastian Huber <sebastian.huber@embedded-brains.de>2018-01-25 08:45:26 +0100
commit2afb22b7e1ebcbe40373ff7e0efae7d207c655a9 (patch)
tree44759efe9374f13200a97e96d91bd9a2b7e5ce2a /bsps/powerpc/motorola_powerpc/include/bsp/irq.h
parentMAINTAINERS: Add myself to Write After Approval. (diff)
downloadrtems-2afb22b7e1ebcbe40373ff7e0efae7d207c655a9.tar.bz2
Remove make preinstall
A speciality of the RTEMS build system was the make preinstall step. It copied header files from arbitrary locations into the build tree. The header files were included via the -Bsome/build/tree/path GCC command line option. This has at least seven problems: * The make preinstall step itself needs time and disk space. * Errors in header files show up in the build tree copy. This makes it hard for editors to open the right file to fix the error. * There is no clear relationship between source and build tree header files. This makes an audit of the build process difficult. * The visibility of all header files in the build tree makes it difficult to enforce API barriers. For example it is discouraged to use BSP-specifics in the cpukit. * An introduction of a new build system is difficult. * Include paths specified by the -B option are system headers. This may suppress warnings. * The parallel build had sporadic failures on some hosts. This patch removes the make preinstall step. All installed header files are moved to dedicated include directories in the source tree. Let @RTEMS_CPU@ be the target architecture, e.g. arm, powerpc, sparc, etc. Let @RTEMS_BSP_FAMILIY@ be a BSP family base directory, e.g. erc32, imx, qoriq, etc. The new cpukit include directories are: * cpukit/include * cpukit/score/cpu/@RTEMS_CPU@/include * cpukit/libnetworking The new BSP include directories are: * bsps/include * bsps/@RTEMS_CPU@/include * bsps/@RTEMS_CPU@/@RTEMS_BSP_FAMILIY@/include There are build tree include directories for generated files. The include directory order favours the most general header file, e.g. it is not possible to override general header files via the include path order. The "bootstrap -p" option was removed. The new "bootstrap -H" option should be used to regenerate the "headers.am" files. Update #3254.
Diffstat (limited to 'bsps/powerpc/motorola_powerpc/include/bsp/irq.h')
-rw-r--r--bsps/powerpc/motorola_powerpc/include/bsp/irq.h204
1 files changed, 204 insertions, 0 deletions
diff --git a/bsps/powerpc/motorola_powerpc/include/bsp/irq.h b/bsps/powerpc/motorola_powerpc/include/bsp/irq.h
new file mode 100644
index 0000000000..2d575d8122
--- /dev/null
+++ b/bsps/powerpc/motorola_powerpc/include/bsp/irq.h
@@ -0,0 +1,204 @@
+/* irq.h
+ *
+ * This include file describe the data structure and the functions implemented
+ * by RTEMS to write interrupt handlers.
+ *
+ * Copyright (C) 1999 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.
+ */
+
+#ifndef BSP_POWERPC_IRQ_H
+#define BSP_POWERPC_IRQ_H
+
+#define BSP_SHARED_HANDLER_SUPPORT 1
+#include <rtems/irq.h>
+
+/*
+ * 8259 edge/level control definitions at VIA
+ */
+#define ISA8259_M_ELCR 0x4d0
+#define ISA8259_S_ELCR 0x4d1
+
+#define ELCRS_INT15_LVL 0x80
+#define ELCRS_INT14_LVL 0x40
+#define ELCRS_INT13_LVL 0x20
+#define ELCRS_INT12_LVL 0x10
+#define ELCRS_INT11_LVL 0x08
+#define ELCRS_INT10_LVL 0x04
+#define ELCRS_INT9_LVL 0x02
+#define ELCRS_INT8_LVL 0x01
+#define ELCRM_INT7_LVL 0x80
+#define ELCRM_INT6_LVL 0x40
+#define ELCRM_INT5_LVL 0x20
+#define ELCRM_INT4_LVL 0x10
+#define ELCRM_INT3_LVL 0x8
+#define ELCRM_INT2_LVL 0x4
+#define ELCRM_INT1_LVL 0x2
+#define ELCRM_INT0_LVL 0x1
+
+ /* PIC's command and mask registers */
+#define PIC_MASTER_COMMAND_IO_PORT 0x20 /* Master PIC command register */
+#define PIC_SLAVE_COMMAND_IO_PORT 0xa0 /* Slave PIC command register */
+#define PIC_MASTER_IMR_IO_PORT 0x21 /* Master PIC Interrupt Mask Register */
+#define PIC_SLAVE_IMR_IO_PORT 0xa1 /* Slave PIC Interrupt Mask Register */
+
+ /* Command for specific EOI (End Of Interrupt): Interrupt acknowledge */
+#define PIC_EOSI 0x60 /* End of Specific Interrupt (EOSI) */
+#define SLAVE_PIC_EOSI 0x62 /* End of Specific Interrupt (EOSI) for cascade */
+#define PIC_EOI 0x20 /* Generic End of Interrupt (EOI) */
+
+#ifndef ASM
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*
+ * rtems_irq_number Definitions
+ */
+
+/*
+ * ISA IRQ handler related definitions
+ */
+#define BSP_ISA_IRQ_NUMBER (16)
+#define BSP_ISA_IRQ_LOWEST_OFFSET (0)
+#define BSP_ISA_IRQ_MAX_OFFSET (BSP_ISA_IRQ_LOWEST_OFFSET + BSP_ISA_IRQ_NUMBER - 1)
+/*
+ * PCI IRQ handlers related definitions
+ * CAUTION : BSP_PCI_IRQ_LOWEST_OFFSET should be equal to OPENPIC_VEC_SOURCE
+ */
+#ifndef qemu
+#define BSP_PCI_IRQ_NUMBER (16)
+#else
+#define BSP_PCI_IRQ_NUMBER (0)
+#endif
+#define BSP_PCI_IRQ_LOWEST_OFFSET (BSP_ISA_IRQ_NUMBER)
+#define BSP_PCI_IRQ_MAX_OFFSET (BSP_PCI_IRQ_LOWEST_OFFSET + BSP_PCI_IRQ_NUMBER - 1)
+/*
+ * PowerPC exceptions handled as interrupt where an RTEMS managed interrupt
+ * handler might be connected
+ */
+#define BSP_PROCESSOR_IRQ_NUMBER (1)
+#define BSP_PROCESSOR_IRQ_LOWEST_OFFSET (BSP_PCI_IRQ_MAX_OFFSET + 1)
+#define BSP_PROCESSOR_IRQ_MAX_OFFSET (BSP_PROCESSOR_IRQ_LOWEST_OFFSET + BSP_PROCESSOR_IRQ_NUMBER - 1)
+/* Misc vectors for OPENPIC irqs (IPI, timers)
+ */
+#ifndef qemu
+#define BSP_MISC_IRQ_NUMBER (8)
+#else
+#define BSP_MISC_IRQ_NUMBER (0)
+#endif
+
+#define BSP_MISC_IRQ_LOWEST_OFFSET (BSP_PROCESSOR_IRQ_MAX_OFFSET + 1)
+#define BSP_MISC_IRQ_MAX_OFFSET (BSP_MISC_IRQ_LOWEST_OFFSET + BSP_MISC_IRQ_NUMBER - 1)
+/*
+ * Summary
+ */
+#define BSP_IRQ_NUMBER (BSP_MISC_IRQ_MAX_OFFSET + 1)
+#define BSP_LOWEST_OFFSET (BSP_ISA_IRQ_LOWEST_OFFSET)
+#define BSP_MAX_OFFSET (BSP_MISC_IRQ_MAX_OFFSET)
+/*
+ * Some ISA IRQ symbolic name definition
+ */
+#define BSP_ISA_PERIODIC_TIMER (0)
+#define BSP_ISA_KEYBOARD (1)
+#define BSP_ISA_UART_COM2_IRQ (3)
+#define BSP_ISA_UART_COM1_IRQ (4)
+#define BSP_ISA_RT_TIMER1 (8)
+#define BSP_ISA_RT_TIMER3 (10)
+/*
+ * Some PCI IRQ symbolic name definition
+ */
+#define BSP_PCI_IRQ0 (BSP_PCI_IRQ_LOWEST_OFFSET)
+#if BSP_PCI_IRQ_NUMBER > 0
+#define BSP_PCI_ISA_BRIDGE_IRQ (BSP_PCI_IRQ0)
+#endif
+
+#if defined(mvme2100)
+#define BSP_DEC21143_IRQ (BSP_PCI_IRQ_LOWEST_OFFSET + 1)
+#define BSP_PMC_PCMIP_TYPE1_SLOT0_IRQ (BSP_PCI_IRQ_LOWEST_OFFSET + 2)
+#define BSP_PCMIP_TYPE1_SLOT1_IRQ (BSP_PCI_IRQ_LOWEST_OFFSET + 3)
+#define BSP_PCMIP_TYPE2_SLOT0_IRQ (BSP_PCI_IRQ_LOWEST_OFFSET + 4)
+#define BSP_PCMIP_TYPE2_SLOT1_IRQ (BSP_PCI_IRQ_LOWEST_OFFSET + 5)
+#define BSP_PCI_INTA_UNIVERSE_LINT0_IRQ (BSP_PCI_IRQ_LOWEST_OFFSET + 7)
+#define BSP_PCI_INTB_UNIVERSE_LINT1_IRQ (BSP_PCI_IRQ_LOWEST_OFFSET + 8)
+#define BSP_PCI_INTC_UNIVERSE_LINT2_IRQ (BSP_PCI_IRQ_LOWEST_OFFSET + 9)
+#define BSP_PCI_INTD_UNIVERSE_LINT3_IRQ (BSP_PCI_IRQ_LOWEST_OFFSET + 10)
+#define BSP_UART_COM1_IRQ (BSP_PCI_IRQ_LOWEST_OFFSET + 13)
+#define BSP_FRONT_PANEL_ABORT_IRQ (BSP_PCI_IRQ_LOWEST_OFFSET + 14)
+#define BSP_RTC_IRQ (BSP_PCI_IRQ_LOWEST_OFFSET + 15)
+#else
+#define BSP_UART_COM1_IRQ BSP_ISA_UART_COM1_IRQ
+#define BSP_UART_COM2_IRQ BSP_ISA_UART_COM2_IRQ
+#endif
+
+/*
+ * Some Processor execption handled as RTEMS IRQ symbolic name definition
+ */
+#define BSP_DECREMENTER (BSP_PROCESSOR_IRQ_LOWEST_OFFSET)
+
+
+/*
+ * Type definition for RTEMS managed interrupts
+ */
+typedef unsigned short rtems_i8259_masks;
+
+extern volatile rtems_i8259_masks i8259s_cache;
+
+/*-------------------------------------------------------------------------+
+| Function Prototypes.
++--------------------------------------------------------------------------*/
+/*
+ * ------------------------ Intel 8259 (or emulation) Mngt Routines -------
+ */
+void BSP_i8259s_init(void);
+
+/*
+ * function to disable a particular irq at 8259 level. After calling
+ * this function, even if the device asserts the interrupt line it will
+ * not be propagated further to the processor
+ *
+ * RETURNS: 1/0 if the interrupt was enabled/disabled originally or
+ * a value < 0 on error.
+ */
+int BSP_irq_disable_at_i8259s (const rtems_irq_number irqLine);
+/*
+ * function to enable a particular irq at 8259 level. After calling
+ * this function, if the device asserts the interrupt line it will
+ * be propagated further to the processor
+ */
+int BSP_irq_enable_at_i8259s (const rtems_irq_number irqLine);
+/*
+ * function to acknowledge a particular irq at 8259 level. After calling
+ * this function, if a device asserts an enabled interrupt line it will
+ * be propagated further to the processor. Mainly usefull for people
+ * writing raw handlers as this is automagically done for RTEMS managed
+ * handlers.
+ */
+int BSP_irq_ack_at_i8259s (const rtems_irq_number irqLine);
+/*
+ * function to check if a particular irq is enabled at 8259 level. After calling
+ */
+int BSP_irq_enabled_at_i8259s (const rtems_irq_number irqLine);
+
+extern void BSP_rtems_irq_mng_init(unsigned cpuId);
+extern void BSP_i8259s_init(void);
+
+/* Stuff in irq_supp.h should eventually go into <rtems/irq.h> */
+#include <bsp/irq_supp.h>
+
+#ifdef __cplusplus
+};
+#endif
+
+#endif
+#endif