?? pci_fixup.c
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/* * * BRIEF MODULE DESCRIPTION * Board specific pci fixups. * * Copyright 2000 MontaVista Software Inc. * Author: MontaVista Software, Inc. * ppopov@mvista.com or source@mvista.com * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the * Free Software Foundation; either version 2 of the License, or (at your * option) any later version. * * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * You should have received a copy of the GNU General Public License along * with this program; if not, write to the Free Software Foundation, Inc., * 675 Mass Ave, Cambridge, MA 02139, USA. */#include <linux/config.h>#ifdef CONFIG_PCI#include <linux/types.h>#include <linux/pci.h>#include <linux/kernel.h>#include <linux/init.h>#include <asm/it8172/it8172.h>#include <asm/it8172/it8172_pci.h>#include <asm/it8172/it8172_int.h>void __init board_int_line_fixup(struct pci_dev *dev) { unsigned int slot, func; unsigned char pin; const int internal_func_irqs[7] = { IT8172_AC97_IRQ, IT8172_DMA_IRQ, IT8172_CDMA_IRQ, IT8172_USB_IRQ, IT8172_BRIDGE_MASTER_IRQ, IT8172_IDE_IRQ, IT8172_MC68K_IRQ };#ifdef DEBUG printk("board_int_line_fixup bus %d\n", dev->bus->number);#endif if (dev->bus->number != 0) return; pci_read_config_byte(dev, PCI_INTERRUPT_PIN, &pin);#ifdef DEBUG pci_read_config_dword(dev, PCI_SUBSYSTEM_VENDOR_ID, &vendor);#endif slot = PCI_SLOT(dev->devfn); func = PCI_FUNC(dev->devfn); switch (slot) { case 0x01: /* * Internal device 1 is actually 7 different internal * devices on the IT8172G (a multi-function device). */ if (func < 7) dev->irq = internal_func_irqs[func]; break; case 0x10: switch (pin) { case 1: /* pin A */ dev->irq = IT8172_PCI_INTA_IRQ; break; case 2: /* pin B */ dev->irq = IT8172_PCI_INTB_IRQ; break; case 3: /* pin C */ dev->irq = IT8172_PCI_INTC_IRQ; break; case 4: /* pin D */ dev->irq = IT8172_PCI_INTD_IRQ; break; default: dev->irq = 0xff; break; } break; case 0x11: switch (pin) { case 1: /* pin A */ dev->irq = IT8172_PCI_INTA_IRQ; break; case 2: /* pin B */ dev->irq = IT8172_PCI_INTB_IRQ; break; case 3: /* pin C */ dev->irq = IT8172_PCI_INTC_IRQ; break; case 4: /* pin D */ dev->irq = IT8172_PCI_INTD_IRQ; break; default: dev->irq = 0xff; break; } break; case 0x12: switch (pin) { case 1: /* pin A */ dev->irq = IT8172_PCI_INTB_IRQ; break; case 2: /* pin B */ dev->irq = IT8172_PCI_INTC_IRQ; break; case 3: /* pin C */ dev->irq = IT8172_PCI_INTD_IRQ; break; case 4: /* pin D */ dev->irq = IT8172_PCI_INTA_IRQ; break; default: dev->irq = 0xff; break; } break; case 0x13: switch (pin) { case 1: /* pin A */ dev->irq = IT8172_PCI_INTC_IRQ; break; case 2: /* pin B */ dev->irq = IT8172_PCI_INTD_IRQ; break; case 3: /* pin C */ dev->irq = IT8172_PCI_INTA_IRQ; break; case 4: /* pin D */ dev->irq = IT8172_PCI_INTB_IRQ; break; default: dev->irq = 0xff; break; } break; case 0x14: switch (pin) { case 1: /* pin A */ dev->irq = IT8172_PCI_INTD_IRQ; break; case 2: /* pin B */ dev->irq = IT8172_PCI_INTA_IRQ; break; case 3: /* pin C */ dev->irq = IT8172_PCI_INTB_IRQ; break; case 4: /* pin D */ dev->irq = IT8172_PCI_INTC_IRQ; break; default: dev->irq = 0xff; break; } break; default: return; }#ifdef DEBUG printk("irq fixup: slot %d, vendor %x, int line %d, int number %d\n", slot, vendor, pin, dev->irq);#endif pci_write_config_byte(dev, PCI_INTERRUPT_LINE, dev->irq);}struct pci_fixup pcibios_fixups[] = { { PCI_FIXUP_HEADER, PCI_ANY_ID, PCI_ANY_ID, board_int_line_fixup }, { 0 }};#endif
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