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Diffstat (limited to 'bsps/bfin/include/bsp/interrupt.h')
| -rw-r--r-- | bsps/bfin/include/bsp/interrupt.h | 144 |
1 files changed, 144 insertions, 0 deletions
diff --git a/bsps/bfin/include/bsp/interrupt.h b/bsps/bfin/include/bsp/interrupt.h new file mode 100644 index 0000000000..7a98775dd5 --- /dev/null +++ b/bsps/bfin/include/bsp/interrupt.h @@ -0,0 +1,144 @@ +/** + *@file interrupt.h + * + *@brief + * - This file implements interrupt dispatcher. The init code is taken from + * the 533 implementation for blackfin. Since 52X supports 56 line and 2 ISR + * registers some portion is written twice. + * + * Target: TLL6527v1-0 + * Compiler: + * + * COPYRIGHT (c) 2010 by ECE Northeastern University. + * + * 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 + * + * @author Rohan Kangralkar, ECE, Northeastern University + * (kangralkar.r@husky.neu.edu) + * + * LastChange: + */ + +#ifndef _BFIN_INTERRUPT_H_ +#define _BFIN_INTERRUPT_H_ + + +#ifdef __cplusplus +extern "C" { +#endif + +/** The type of interrupts handled by the SIC + */ +typedef enum { + IRQ_PLL_WAKEUP_INTERRUPT, /* 0 */ + IRQ_DMA_ERROR_0, /* 1 */ + IRQ_DMAR0_BLOCK_INTERRUPT, /* 2 */ + IRQ_DMAR1_BLOCK_INTERRUPT, /* 3 */ + IRQ_DMAR0_OVERFLOW_ERROR, /* 4 */ + IRQ_DMAR1_OVERFLOW_ERROR, /* 5 */ + IRQ_PPI_STATUS, /* 6 */ + IRQ_MAC_STATUS, /* 7 */ + IRQ_SPORT0_STATUS, /* 8 */ + IRQ_SPORT1_STATUS, /* 9 */ + IRQ_RESERVED_10, /* 10 */ + IRQ_RESERVED_11, /* 11 */ + IRQ_UART0_STATUS, /* 12 */ + IRQ_UART1_STATUS, /* 13 */ + IRQ_REAL_TIME_CLOCK, /* 14 */ + IRQ_DMA0_PPI_NFC, /* 15 */ + IRQ_DMA3_SPORT0_RX, /* 16 */ + IRQ_DMA4_SPORT0_TX, /* 17 */ + IRQ_DMA5_SPORT1_RX, /* 18 */ + IRQ_DMA6_SPORT1_TX, /* 19 */ + IRQ_TWI_INTERRUPT, /* 20 */ + IRQ_DMA7_SPI, /* 21 */ + IRQ_DMA8_UART0_RX, /* 22 */ + IRQ_DMA9_UART0_TX, /* 23 */ + IRQ_DMA10_UART1_RX, /* 24 */ + IRQ_DMA11_UART1_TX, /* 25 */ + IRQ_OTP, /* 26 */ + IRQ_GP_COUNTER, /* 27 */ + IRQ_DMA1_MAC_RX_HOSTDP, /* 28 */ + IRQ_PORT_H_INTERRUPT_A, /* 29 */ + IRQ_DMA2_MAC_TX_NFC, /* 30 */ + IRQ_PORT_H_INTERRUPT_B, /* 31 */ + SIC_ISR0_MAX, /* 32 ***/ + IRQ_TIMER0 = SIC_ISR0_MAX, /* 32 */ + IRQ_TIMER1, /* 33 */ + IRQ_TIMER2, /* 34 */ + IRQ_TIMER3, /* 35 */ + IRQ_TIMER4, /* 36 */ + IRQ_TIMER5, /* 37 */ + IRQ_TIMER6, /* 38 */ + IRQ_TIMER7, /* 39 */ + IRQ_PORT_G_INTERRUPT_A, /* 40 */ + IRQ_PORT_G_INTERRUPT_B, /* 41 */ + IRQ_MDMA0_STREAM_0_INTERRUPT, /* 42 */ + IRQ_MDMA1_STREAM_0_INTERRUPT, /* 43 */ + IRQ_SOFTWARE_WATCHDOG_INTERRUPT, /* 44 */ + IRQ_PORT_F_INTERRUPT_A, /* 45 */ + IRQ_PORT_F_INTERRUPT_B, /* 46 */ + IRQ_SPI_STATUS, /* 47 */ + IRQ_NFC_STATUS, /* 48 */ + IRQ_HOSTDP_STATUS, /* 49 */ + IRQ_HOREAD_DONE_INTERRUPT, /* 50 */ + IRQ_RESERVED_19, /* 51 */ + IRQ_USB_INT0_INTERRUPT, /* 52 */ + IRQ_USB_INT1_INTERRUPT, /* 53 */ + IRQ_USB_INT2_INTERRUPT, /* 54 */ + IRQ_USB_DMAINT, /* 55 */ + IRQ_MAX, /* 56 */ +} e_isr_t; + + + + +/* source is the source to the SIC (the bit number in SIC_ISR). isr is + the function that will be called when the interrupt is active. */ +typedef struct bfin_isr_s { +#if INTERRUPT_USE_TABLE + e_isr_t source; + void (*pFunc)(void *arg); + void *pArg; + int priority; /** not used */ +#else + int source; + void (*isr)(void *arg); + void *_arg; + /* the following are for internal use only */ + uint32_t mask0; + uint32_t mask1; + uint32_t vector; + struct bfin_isr_s *next; +#endif +} bfin_isr_t; + +/** + * This routine registers a new ISR. It will write a new entry to the IVT table + * @param isr contains a callback function and source + * @return rtems status code + */ +rtems_status_code bfin_interrupt_register(bfin_isr_t *isr); + +/** + * This function unregisters a registered interrupt handler. + * @param isr + */ +rtems_status_code bfin_interrupt_unregister(bfin_isr_t *isr); + +/** + * blackfin interrupt initialization routine. It initializes the bfin ISR + * dispatcher. It will also create SIC CEC map which will be used for + * identifying the ISR. + */ +void bfin_interrupt_init(void); + + +#ifdef __cplusplus +} +#endif + +#endif /* _BFIN_INTERRUPT_H_ */ + |