diff options
Diffstat (limited to 'include/powerpc/mbx821_001/bsp/irq.h')
| -rw-r--r-- | include/powerpc/mbx821_001/bsp/irq.h | 184 |
1 files changed, 184 insertions, 0 deletions
diff --git a/include/powerpc/mbx821_001/bsp/irq.h b/include/powerpc/mbx821_001/bsp/irq.h new file mode 100644 index 0000000000..b79ea96690 --- /dev/null +++ b/include/powerpc/mbx821_001/bsp/irq.h @@ -0,0 +1,184 @@ +/* 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 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 |