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kernel/linux-rt-4.4.41/arch/arm/mach-footbridge/include/mach/irqs.h 2.99 KB
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  /*
   * arch/arm/mach-footbridge/include/mach/irqs.h
   *
   * Copyright (C) 1998 Russell King
   * Copyright (C) 1998 Phil Blundell
   *
   * Changelog:
   *  20-Jan-1998	RMK	Started merge of EBSA286, CATS and NetWinder
   *  01-Feb-1999	PJB	ISA IRQs start at 0 not 16
   */
  #include <asm/mach-types.h>
  
  #define NR_IRQS			36
  #define NR_DC21285_IRQS		16
  
  #define _ISA_IRQ(x)		(0 + (x))
  #define _ISA_INR(x)		((x) - 0)
  #define _DC21285_IRQ(x)		(16 + (x))
  #define _DC21285_INR(x)		((x) - 16)
  
  /*
   * This is a list of all interrupts that the 21285
   * can generate and we handle.
   */
  #define IRQ_CONRX		_DC21285_IRQ(0)
  #define IRQ_CONTX		_DC21285_IRQ(1)
  #define IRQ_TIMER1		_DC21285_IRQ(2)
  #define IRQ_TIMER2		_DC21285_IRQ(3)
  #define IRQ_TIMER3		_DC21285_IRQ(4)
  #define IRQ_IN0			_DC21285_IRQ(5)
  #define IRQ_IN1			_DC21285_IRQ(6)
  #define IRQ_IN2			_DC21285_IRQ(7)
  #define IRQ_IN3			_DC21285_IRQ(8)
  #define IRQ_DOORBELLHOST	_DC21285_IRQ(9)
  #define IRQ_DMA1		_DC21285_IRQ(10)
  #define IRQ_DMA2		_DC21285_IRQ(11)
  #define IRQ_PCI			_DC21285_IRQ(12)
  #define IRQ_SDRAMPARITY		_DC21285_IRQ(13)
  #define IRQ_I2OINPOST		_DC21285_IRQ(14)
  #define IRQ_PCI_ABORT		_DC21285_IRQ(15)
  #define IRQ_PCI_SERR		_DC21285_IRQ(16)
  #define IRQ_DISCARD_TIMER	_DC21285_IRQ(17)
  #define IRQ_PCI_DPERR		_DC21285_IRQ(18)
  #define IRQ_PCI_PERR		_DC21285_IRQ(19)
  
  #define IRQ_ISA_TIMER		_ISA_IRQ(0)
  #define IRQ_ISA_KEYBOARD	_ISA_IRQ(1)
  #define IRQ_ISA_CASCADE		_ISA_IRQ(2)
  #define IRQ_ISA_UART2		_ISA_IRQ(3)
  #define IRQ_ISA_UART		_ISA_IRQ(4)
  #define IRQ_ISA_FLOPPY		_ISA_IRQ(6)
  #define IRQ_ISA_PRINTER		_ISA_IRQ(7)
  #define IRQ_ISA_RTC_ALARM	_ISA_IRQ(8)
  #define IRQ_ISA_2		_ISA_IRQ(9)
  #define IRQ_ISA_PS2MOUSE	_ISA_IRQ(12)
  #define IRQ_ISA_HARDDISK1	_ISA_IRQ(14)
  #define IRQ_ISA_HARDDISK2	_ISA_IRQ(15)
  
  #define IRQ_MASK_UART_RX	(1 << 2)
  #define IRQ_MASK_UART_TX	(1 << 3)
  #define IRQ_MASK_TIMER1		(1 << 4)
  #define IRQ_MASK_TIMER2		(1 << 5)
  #define IRQ_MASK_TIMER3		(1 << 6)
  #define IRQ_MASK_IN0		(1 << 8)
  #define IRQ_MASK_IN1		(1 << 9)
  #define IRQ_MASK_IN2		(1 << 10)
  #define IRQ_MASK_IN3		(1 << 11)
  #define IRQ_MASK_DOORBELLHOST	(1 << 15)
  #define IRQ_MASK_DMA1		(1 << 16)
  #define IRQ_MASK_DMA2		(1 << 17)
  #define IRQ_MASK_PCI		(1 << 18)
  #define IRQ_MASK_SDRAMPARITY	(1 << 24)
  #define IRQ_MASK_I2OINPOST	(1 << 25)
  #define IRQ_MASK_PCI_ABORT	((1 << 29) | (1 << 30))
  #define IRQ_MASK_PCI_SERR	(1 << 23)
  #define IRQ_MASK_DISCARD_TIMER	(1 << 27)
  #define IRQ_MASK_PCI_DPERR	(1 << 28)
  #define IRQ_MASK_PCI_PERR	(1 << 31)
  
  /*
   * Netwinder interrupt allocations
   */
  #define IRQ_NETWINDER_ETHER10	IRQ_IN0
  #define IRQ_NETWINDER_ETHER100	IRQ_IN1
  #define IRQ_NETWINDER_VIDCOMP	IRQ_IN2
  #define IRQ_NETWINDER_PS2MOUSE	_ISA_IRQ(5)
  #define IRQ_NETWINDER_IR	_ISA_IRQ(6)
  #define IRQ_NETWINDER_BUTTON	_ISA_IRQ(10)
  #define IRQ_NETWINDER_VGA	_ISA_IRQ(11)
  #define IRQ_NETWINDER_SOUND	_ISA_IRQ(12)
  
  #define I8042_KBD_IRQ	IRQ_ISA_KEYBOARD
  #define I8042_AUX_IRQ	(machine_is_netwinder() ? IRQ_NETWINDER_PS2MOUSE : IRQ_ISA_PS2MOUSE)
  #define IRQ_FLOPPYDISK	IRQ_ISA_FLOPPY
  
  #define irq_canonicalize(_i)	(((_i) == IRQ_ISA_CASCADE) ? IRQ_ISA_2 : _i)