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/*
* arch/arm/mach-shark/include/mach/entry-macro.S
*
* Low-level IRQ helper macros for Shark platform
*
* This file is licensed under the terms of the GNU General Public
* License version 2. This program is licensed "as is" without any
* warranty of any kind, whether express or implied.
*/
.macro get_irqnr_preamble, base, tmp
mov \base, #0xfe000000
orr \base, \base, #0x00e00000
.endm
.macro get_irqnr_and_base, irqnr, irqstat, base, tmp
mov \irqstat, #0x0C
strb \irqstat, [\base, #0x20] @outb(0x0C, 0x20) /* Poll command */
ldrb \irqnr, [\base, #0x20] @irq = inb(0x20) & 7
and \irqstat, \irqnr, #0x80
teq \irqstat, #0
beq 43f
and \irqnr, \irqnr, #7
teq \irqnr, #2
bne 44f
43: mov \irqstat, #0x0C
strb \irqstat, [\base, #0xa0] @outb(0x0C, 0xA0) /* Poll command */
ldrb \irqnr, [\base, #0xa0] @irq = (inb(0xA0) & 7) + 8
and \irqstat, \irqnr, #0x80
teq \irqstat, #0
beq 44f
and \irqnr, \irqnr, #7
add \irqnr, \irqnr, #8
44: teq \irqstat, #0
.endm
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