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/* 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.com/license/LICENSE.
*/
#ifndef LIBBSP_POWERPC_MBX8XX_IRQ_IRQ_H
#define LIBBSP_POWERPC_MBX8XX_IRQ_IRQ_H
#include <rtems/irq.h>
#ifndef ASM
#ifdef __cplusplus
extern "C" {
#endif
extern volatile unsigned int ppc_cached_irq_mask;
/*
* Symblolic IRQ names and related definitions.
*/
/*
* SIU IRQ handler related definitions
*/
#define BSP_SIU_IRQ_NUMBER 16 /* 16 reserved but in the future... */
#define BSP_SIU_IRQ_LOWEST_OFFSET 0
#define BSP_SIU_IRQ_MAX_OFFSET (BSP_SIU_IRQ_LOWEST_OFFSET + BSP_SIU_IRQ_NUMBER - 1)
/*
* CPM IRQ handlers related definitions
* CAUTION : BSP_CPM_IRQ_LOWEST_OFFSET should be equal to OPENPIC_VEC_SOURCE
*/
#define BSP_CPM_IRQ_NUMBER 32
#define BSP_CPM_IRQ_LOWEST_OFFSET (BSP_SIU_IRQ_NUMBER + BSP_SIU_IRQ_LOWEST_OFFSET)
#define BSP_CPM_IRQ_MAX_OFFSET (BSP_CPM_IRQ_LOWEST_OFFSET + BSP_CPM_IRQ_NUMBER - 1)
/*
* PowerPc exceptions handled as interrupt where a rtems managed interrupt
* handler might be connected
*/
#define BSP_PROCESSOR_IRQ_NUMBER 1
#define BSP_PROCESSOR_IRQ_LOWEST_OFFSET (BSP_CPM_IRQ_MAX_OFFSET + 1)
#define BSP_PROCESSOR_IRQ_MAX_OFFSET (BSP_PROCESSOR_IRQ_LOWEST_OFFSET + BSP_PROCESSOR_IRQ_NUMBER - 1)
/*
* Summary
*/
#define BSP_IRQ_NUMBER (BSP_PROCESSOR_IRQ_MAX_OFFSET + 1)
#define BSP_LOWEST_OFFSET (BSP_SIU_IRQ_LOWEST_OFFSET)
#define BSP_MAX_OFFSET (BSP_PROCESSOR_IRQ_MAX_OFFSET)
/*
* Some SIU IRQ symbolic name definition. Please note that
* INT IRQ are defined but a single one will be used to
* redirect all CPM interrupt.
*/
#define BSP_SIU_EXT_IRQ_0 0
#define BSP_SIU_INT_IRQ_0 1
#define BSP_SIU_EXT_IRQ_1 2
#define BSP_SIU_INT_IRQ_1 3
#define BSP_SIU_EXT_IRQ_2 4
#define BSP_SIU_INT_IRQ_2 5
#define BSP_SIU_EXT_IRQ_3 6
#define BSP_SIU_INT_IRQ_3 7
#define BSP_SIU_EXT_IRQ_4 8
#define BSP_SIU_INT_IRQ_4 9
#define BSP_SIU_EXT_IRQ_5 10
#define BSP_SIU_INT_IRQ_5 11
#define BSP_SIU_EXT_IRQ_6 12
#define BSP_SIU_INT_IRQ_6 13
#define BSP_SIU_EXT_IRQ_7 14
#define BSP_SIU_INT_IRQ_7 15
/*
* Symbolic name for CPM interrupt on SIU Internal level 2
*/
#define BSP_CPM_INTERRUPT BSP_SIU_INT_IRQ_2
#define BSP_PERIODIC_TIMER BSP_SIU_INT_IRQ_6
#define BSP_FAST_ETHERNET_CTRL BSP_SIU_INT_IRQ_3
/*
* Some CPM IRQ symbolic name definition
*/
#define BSP_CPM_IRQ_ERROR BSP_CPM_IRQ_LOWEST_OFFSET
#define BSP_CPM_IRQ_PARALLEL_IO_PC4 (BSP_CPM_IRQ_LOWEST_OFFSET + 1)
#define BSP_CPM_IRQ_PARALLEL_IO_PC5 (BSP_CPM_IRQ_LOWEST_OFFSET + 2)
#define BSP_CPM_IRQ_SMC2_OR_PIP (BSP_CPM_IRQ_LOWEST_OFFSET + 3)
#define BSP_CPM_IRQ_SMC1 (BSP_CPM_IRQ_LOWEST_OFFSET + 4)
#define BSP_CPM_IRQ_SPI (BSP_CPM_IRQ_LOWEST_OFFSET + 5)
#define BSP_CPM_IRQ_PARALLEL_IO_PC6 (BSP_CPM_IRQ_LOWEST_OFFSET + 6)
#define BSP_CPM_IRQ_TIMER_4 (BSP_CPM_IRQ_LOWEST_OFFSET + 7)
#define BSP_CPM_IRQ_PARALLEL_IO_PC7 (BSP_CPM_IRQ_LOWEST_OFFSET + 9)
#define BSP_CPM_IRQ_PARALLEL_IO_PC8 (BSP_CPM_IRQ_LOWEST_OFFSET + 10)
#define BSP_CPM_IRQ_PARALLEL_IO_PC9 (BSP_CPM_IRQ_LOWEST_OFFSET + 11)
#define BSP_CPM_IRQ_TIMER_3 (BSP_CPM_IRQ_LOWEST_OFFSET + 12)
#define BSP_CPM_IRQ_PARALLEL_IO_PC10 (BSP_CPM_IRQ_LOWEST_OFFSET + 14)
#define BSP_CPM_IRQ_PARALLEL_IO_PC11 (BSP_CPM_IRQ_LOWEST_OFFSET + 15)
#define BSP_CPM_I2C (BSP_CPM_IRQ_LOWEST_OFFSET + 16)
#define BSP_CPM_RISC_TIMER_TABLE (BSP_CPM_IRQ_LOWEST_OFFSET + 17)
#define BSP_CPM_IRQ_TIMER_2 (BSP_CPM_IRQ_LOWEST_OFFSET + 18)
#define BSP_CPM_IDMA2 (BSP_CPM_IRQ_LOWEST_OFFSET + 20)
#define BSP_CPM_IDMA1 (BSP_CPM_IRQ_LOWEST_OFFSET + 21)
#define BSP_CPM_SDMA_CHANNEL_BUS_ERR (BSP_CPM_IRQ_LOWEST_OFFSET + 22)
#define BSP_CPM_IRQ_PARALLEL_IO_PC12 (BSP_CPM_IRQ_LOWEST_OFFSET + 23)
#define BSP_CPM_IRQ_PARALLEL_IO_PC13 (BSP_CPM_IRQ_LOWEST_OFFSET + 24)
#define BSP_CPM_IRQ_TIMER_1 (BSP_CPM_IRQ_LOWEST_OFFSET + 25)
#define BSP_CPM_IRQ_PARALLEL_IO_PC14 (BSP_CPM_IRQ_LOWEST_OFFSET + 26)
#define BSP_CPM_IRQ_SCC4 (BSP_CPM_IRQ_LOWEST_OFFSET + 27)
#define BSP_CPM_IRQ_SCC3 (BSP_CPM_IRQ_LOWEST_OFFSET + 28)
#define BSP_CPM_IRQ_SCC2 (BSP_CPM_IRQ_LOWEST_OFFSET + 29)
#define BSP_CPM_IRQ_SCC1 (BSP_CPM_IRQ_LOWEST_OFFSET + 30)
#define BSP_CPM_IRQ_PARALLEL_IO_PC15 (BSP_CPM_IRQ_LOWEST_OFFSET + 31)
/*
* Some Processor exception handled as rtems IRQ symbolic name definition
*/
#define BSP_DECREMENTER BSP_PROCESSOR_IRQ_LOWEST_OFFSET
#define BSP_INTERRUPT_VECTOR_MIN BSP_LOWEST_OFFSET
#define BSP_INTERRUPT_VECTOR_MAX BSP_MAX_OFFSET
#define CPM_INTERRUPT
/*-------------------------------------------------------------------------+
| Function Prototypes.
+--------------------------------------------------------------------------*/
/*
* ------------------------ PPC SIU Mngt Routines -------
*/
/*
* 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
*/
int BSP_irq_disable_at_siu (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_siu (const rtems_irq_number irqLine);
/*
* function to acknoledge 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
* writting raw handlers as this is automagically done for rtems managed
* handlers.
*/
int BSP_irq_ack_at_siu (const rtems_irq_number irqLine);
/*
* function to check if a particular irq is enabled at 8259 level. After calling
*/
int BSP_irq_enabled_at_siu (const rtems_irq_number irqLine);
extern void BSP_rtems_irq_mng_init(unsigned cpuId);
extern int BSP_irq_enabled_at_cpm(const rtems_irq_number irqLine);
#ifdef __cplusplus
}
#endif
#endif
#endif
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