/* 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 : * * 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 #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