/* * 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