interrupt.h File Reference

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Data Structures
struct	bfin_isr_s

Typedefs
typedef struct bfin_isr_s	bfin_isr_t

Enumerations
enum	e_isr_t {   IRQ_PLL_WAKEUP_INTERRUPT, IRQ_DMA_ERROR_0, IRQ_DMAR0_BLOCK_INTERRUPT, IRQ_DMAR1_BLOCK_INTERRUPT,   IRQ_DMAR0_OVERFLOW_ERROR, IRQ_DMAR1_OVERFLOW_ERROR, IRQ_PPI_STATUS, IRQ_MAC_STATUS,   IRQ_SPORT0_STATUS, IRQ_SPORT1_STATUS, IRQ_RESERVED_10, IRQ_RESERVED_11,   IRQ_UART0_STATUS, IRQ_UART1_STATUS, IRQ_REAL_TIME_CLOCK, IRQ_DMA0_PPI_NFC,   IRQ_DMA3_SPORT0_RX, IRQ_DMA4_SPORT0_TX, IRQ_DMA5_SPORT1_RX, IRQ_DMA6_SPORT1_TX,   IRQ_TWI_INTERRUPT, IRQ_DMA7_SPI, IRQ_DMA8_UART0_RX, IRQ_DMA9_UART0_TX,   IRQ_DMA10_UART1_RX, IRQ_DMA11_UART1_TX, IRQ_OTP, IRQ_GP_COUNTER,   IRQ_DMA1_MAC_RX_HOSTDP, IRQ_PORT_H_INTERRUPT_A, IRQ_DMA2_MAC_TX_NFC, IRQ_PORT_H_INTERRUPT_B,   SIC_ISR0_MAX, IRQ_TIMER0 = SIC_ISR0_MAX, IRQ_TIMER1, IRQ_TIMER2,   IRQ_TIMER3, IRQ_TIMER4, IRQ_TIMER5, IRQ_TIMER6,   IRQ_TIMER7, IRQ_PORT_G_INTERRUPT_A, IRQ_PORT_G_INTERRUPT_B, IRQ_MDMA0_STREAM_0_INTERRUPT,   IRQ_MDMA1_STREAM_0_INTERRUPT, IRQ_SOFTWARE_WATCHDOG_INTERRUPT, IRQ_PORT_F_INTERRUPT_A, IRQ_PORT_F_INTERRUPT_B,   IRQ_SPI_STATUS, IRQ_NFC_STATUS, IRQ_HOSTDP_STATUS, IRQ_HOREAD_DONE_INTERRUPT,   IRQ_RESERVED_19, IRQ_USB_INT0_INTERRUPT, IRQ_USB_INT1_INTERRUPT, IRQ_USB_INT2_INTERRUPT,   IRQ_USB_DMAINT, IRQ_MAX }

Functions
rtems_status_code	bfin_interrupt_register (bfin_isr_t *isr)
rtems_status_code	bfin_interrupt_unregister (bfin_isr_t *isr)
void	bfin_interrupt_init (void)

Detailed Description

• 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 (kangr.nosp@m.alka.nosp@m.r.r@h.nosp@m.usky.nosp@m..neu..nosp@m.edu)

LastChange:

Enumeration Type Documentation

e_isr_t

enum e_isr_t

The type of interrupts handled by the SIC

Function Documentation

bfin_interrupt_init()

void bfin_interrupt_init

(

void

)

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.

Initializes the interrupt module

The bf52x has 8 IAR registers but they do not have a constant pitch.

bfin_interrupt_register()

rtems_status_code bfin_interrupt_register

(

bfin_isr_t *

isr

)

This routine registers a new ISR. It will write a new entry to the IVT table

Parameters

isr	contains a callback function and source

Returns

rtems status code

bfin_interrupt_unregister()

rtems_status_code bfin_interrupt_unregister

(

bfin_isr_t *

isr

)

This function unregisters a registered interrupt handler.

Parameters

isr