| /* |
| * This file contains quirk handling code for PnP devices |
| * Some devices do not report all their resources, and need to have extra |
| * resources added. This is most easily accomplished at initialisation time |
| * when building up the resource structure for the first time. |
| * |
| * Copyright (c) 2000 Peter Denison <peterd@pnd-pc.demon.co.uk> |
| * Copyright (C) 2008 Hewlett-Packard Development Company, L.P. |
| * Bjorn Helgaas <bjorn.helgaas@hp.com> |
| * |
| * Heavily based on PCI quirks handling which is |
| * |
| * Copyright (c) 1999 Martin Mares <mj@ucw.cz> |
| */ |
| |
| #include <linux/types.h> |
| #include <linux/kernel.h> |
| #include <linux/string.h> |
| #include <linux/slab.h> |
| #include <linux/pnp.h> |
| #include <linux/io.h> |
| #include <linux/kallsyms.h> |
| #include "base.h" |
| |
| static void quirk_awe32_add_ports(struct pnp_dev *dev, |
| struct pnp_option *option, |
| unsigned int offset) |
| { |
| struct pnp_option *new_option; |
| |
| new_option = kmalloc(sizeof(struct pnp_option), GFP_KERNEL); |
| if (!new_option) { |
| dev_err(&dev->dev, "couldn't add ioport region to option set " |
| "%d\n", pnp_option_set(option)); |
| return; |
| } |
| |
| *new_option = *option; |
| new_option->u.port.min += offset; |
| new_option->u.port.max += offset; |
| list_add(&new_option->list, &option->list); |
| |
| dev_info(&dev->dev, "added ioport region %#llx-%#llx to set %d\n", |
| (unsigned long long) new_option->u.port.min, |
| (unsigned long long) new_option->u.port.max, |
| pnp_option_set(option)); |
| } |
| |
| static void quirk_awe32_resources(struct pnp_dev *dev) |
| { |
| struct pnp_option *option; |
| unsigned int set = ~0; |
| |
| /* |
| * Add two extra ioport regions (at offset 0x400 and 0x800 from the |
| * one given) to every dependent option set. |
| */ |
| list_for_each_entry(option, &dev->options, list) { |
| if (pnp_option_is_dependent(option) && |
| pnp_option_set(option) != set) { |
| set = pnp_option_set(option); |
| quirk_awe32_add_ports(dev, option, 0x800); |
| quirk_awe32_add_ports(dev, option, 0x400); |
| } |
| } |
| } |
| |
| static void quirk_cmi8330_resources(struct pnp_dev *dev) |
| { |
| struct pnp_option *option; |
| struct pnp_irq *irq; |
| struct pnp_dma *dma; |
| |
| list_for_each_entry(option, &dev->options, list) { |
| if (!pnp_option_is_dependent(option)) |
| continue; |
| |
| if (option->type == IORESOURCE_IRQ) { |
| irq = &option->u.irq; |
| bitmap_zero(irq->map.bits, PNP_IRQ_NR); |
| __set_bit(5, irq->map.bits); |
| __set_bit(7, irq->map.bits); |
| __set_bit(10, irq->map.bits); |
| dev_info(&dev->dev, "set possible IRQs in " |
| "option set %d to 5, 7, 10\n", |
| pnp_option_set(option)); |
| } else if (option->type == IORESOURCE_DMA) { |
| dma = &option->u.dma; |
| if ((dma->flags & IORESOURCE_DMA_TYPE_MASK) == |
| IORESOURCE_DMA_8BIT && |
| dma->map != 0x0A) { |
| dev_info(&dev->dev, "changing possible " |
| "DMA channel mask in option set %d " |
| "from %#02x to 0x0A (1, 3)\n", |
| pnp_option_set(option), dma->map); |
| dma->map = 0x0A; |
| } |
| } |
| } |
| } |
| |
| static void quirk_sb16audio_resources(struct pnp_dev *dev) |
| { |
| struct pnp_option *option; |
| unsigned int prev_option_flags = ~0, n = 0; |
| struct pnp_port *port; |
| |
| /* |
| * The default range on the OPL port for these devices is 0x388-0x388. |
| * Here we increase that range so that two such cards can be |
| * auto-configured. |
| */ |
| list_for_each_entry(option, &dev->options, list) { |
| if (prev_option_flags != option->flags) { |
| prev_option_flags = option->flags; |
| n = 0; |
| } |
| |
| if (pnp_option_is_dependent(option) && |
| option->type == IORESOURCE_IO) { |
| n++; |
| port = &option->u.port; |
| if (n == 3 && port->min == port->max) { |
| port->max += 0x70; |
| dev_info(&dev->dev, "increased option port " |
| "range from %#llx-%#llx to " |
| "%#llx-%#llx\n", |
| (unsigned long long) port->min, |
| (unsigned long long) port->min, |
| (unsigned long long) port->min, |
| (unsigned long long) port->max); |
| } |
| } |
| } |
| } |
| |
| static struct pnp_option *pnp_clone_dependent_set(struct pnp_dev *dev, |
| unsigned int set) |
| { |
| struct pnp_option *tail = NULL, *first_new_option = NULL; |
| struct pnp_option *option, *new_option; |
| unsigned int flags; |
| |
| list_for_each_entry(option, &dev->options, list) { |
| if (pnp_option_is_dependent(option)) |
| tail = option; |
| } |
| if (!tail) { |
| dev_err(&dev->dev, "no dependent option sets\n"); |
| return NULL; |
| } |
| |
| flags = pnp_new_dependent_set(dev, PNP_RES_PRIORITY_FUNCTIONAL); |
| list_for_each_entry(option, &dev->options, list) { |
| if (pnp_option_is_dependent(option) && |
| pnp_option_set(option) == set) { |
| new_option = kmalloc(sizeof(struct pnp_option), |
| GFP_KERNEL); |
| if (!new_option) { |
| dev_err(&dev->dev, "couldn't clone dependent " |
| "set %d\n", set); |
| return NULL; |
| } |
| |
| *new_option = *option; |
| new_option->flags = flags; |
| if (!first_new_option) |
| first_new_option = new_option; |
| |
| list_add(&new_option->list, &tail->list); |
| tail = new_option; |
| } |
| } |
| |
| return first_new_option; |
| } |
| |
| |
| static void quirk_add_irq_optional_dependent_sets(struct pnp_dev *dev) |
| { |
| struct pnp_option *new_option; |
| unsigned int num_sets, i, set; |
| struct pnp_irq *irq; |
| |
| num_sets = dev->num_dependent_sets; |
| for (i = 0; i < num_sets; i++) { |
| new_option = pnp_clone_dependent_set(dev, i); |
| if (!new_option) |
| return; |
| |
| set = pnp_option_set(new_option); |
| while (new_option && pnp_option_set(new_option) == set) { |
| if (new_option->type == IORESOURCE_IRQ) { |
| irq = &new_option->u.irq; |
| irq->flags |= IORESOURCE_IRQ_OPTIONAL; |
| } |
| dbg_pnp_show_option(dev, new_option); |
| new_option = list_entry(new_option->list.next, |
| struct pnp_option, list); |
| } |
| |
| dev_info(&dev->dev, "added dependent option set %d (same as " |
| "set %d except IRQ optional)\n", set, i); |
| } |
| } |
| |
| static void quirk_ad1815_mpu_resources(struct pnp_dev *dev) |
| { |
| struct pnp_option *option; |
| struct pnp_irq *irq = NULL; |
| unsigned int independent_irqs = 0; |
| |
| list_for_each_entry(option, &dev->options, list) { |
| if (option->type == IORESOURCE_IRQ && |
| !pnp_option_is_dependent(option)) { |
| independent_irqs++; |
| irq = &option->u.irq; |
| } |
| } |
| |
| if (independent_irqs != 1) |
| return; |
| |
| irq->flags |= IORESOURCE_IRQ_OPTIONAL; |
| dev_info(&dev->dev, "made independent IRQ optional\n"); |
| } |
| |
| #include <linux/pci.h> |
| |
| static void quirk_system_pci_resources(struct pnp_dev *dev) |
| { |
| struct pci_dev *pdev = NULL; |
| struct resource *res; |
| resource_size_t pnp_start, pnp_end, pci_start, pci_end; |
| int i, j; |
| |
| /* |
| * Some BIOSes have PNP motherboard devices with resources that |
| * partially overlap PCI BARs. The PNP system driver claims these |
| * motherboard resources, which prevents the normal PCI driver from |
| * requesting them later. |
| * |
| * This patch disables the PNP resources that conflict with PCI BARs |
| * so they won't be claimed by the PNP system driver. |
| */ |
| for_each_pci_dev(pdev) { |
| for (i = 0; i < DEVICE_COUNT_RESOURCE; i++) { |
| unsigned long type; |
| |
| type = pci_resource_flags(pdev, i) & |
| (IORESOURCE_IO | IORESOURCE_MEM); |
| if (!type || pci_resource_len(pdev, i) == 0) |
| continue; |
| |
| pci_start = pci_resource_start(pdev, i); |
| pci_end = pci_resource_end(pdev, i); |
| for (j = 0; |
| (res = pnp_get_resource(dev, type, j)); j++) { |
| if (res->start == 0 && res->end == 0) |
| continue; |
| |
| pnp_start = res->start; |
| pnp_end = res->end; |
| |
| /* |
| * If the PNP region doesn't overlap the PCI |
| * region at all, there's no problem. |
| */ |
| if (pnp_end < pci_start || pnp_start > pci_end) |
| continue; |
| |
| /* |
| * If the PNP region completely encloses (or is |
| * at least as large as) the PCI region, that's |
| * also OK. For example, this happens when the |
| * PNP device describes a bridge with PCI |
| * behind it. |
| */ |
| if (pnp_start <= pci_start && |
| pnp_end >= pci_end) |
| continue; |
| |
| /* |
| * Otherwise, the PNP region overlaps *part* of |
| * the PCI region, and that might prevent a PCI |
| * driver from requesting its resources. |
| */ |
| dev_warn(&dev->dev, "resource %pRt overlaps %s " |
| "BAR %d %pRt, disabling\n", res, |
| pci_name(pdev), i, &pdev->resource[i]); |
| res->flags |= IORESOURCE_DISABLED; |
| } |
| } |
| } |
| } |
| |
| /* |
| * PnP Quirks |
| * Cards or devices that need some tweaking due to incomplete resource info |
| */ |
| |
| static struct pnp_fixup pnp_fixups[] = { |
| /* Soundblaster awe io port quirk */ |
| {"CTL0021", quirk_awe32_resources}, |
| {"CTL0022", quirk_awe32_resources}, |
| {"CTL0023", quirk_awe32_resources}, |
| /* CMI 8330 interrupt and dma fix */ |
| {"@X@0001", quirk_cmi8330_resources}, |
| /* Soundblaster audio device io port range quirk */ |
| {"CTL0001", quirk_sb16audio_resources}, |
| {"CTL0031", quirk_sb16audio_resources}, |
| {"CTL0041", quirk_sb16audio_resources}, |
| {"CTL0042", quirk_sb16audio_resources}, |
| {"CTL0043", quirk_sb16audio_resources}, |
| {"CTL0044", quirk_sb16audio_resources}, |
| {"CTL0045", quirk_sb16audio_resources}, |
| /* Add IRQ-optional MPU options */ |
| {"ADS7151", quirk_ad1815_mpu_resources}, |
| {"ADS7181", quirk_add_irq_optional_dependent_sets}, |
| {"AZT0002", quirk_add_irq_optional_dependent_sets}, |
| /* PnP resources that might overlap PCI BARs */ |
| {"PNP0c01", quirk_system_pci_resources}, |
| {"PNP0c02", quirk_system_pci_resources}, |
| {""} |
| }; |
| |
| void pnp_fixup_device(struct pnp_dev *dev) |
| { |
| struct pnp_fixup *f; |
| |
| for (f = pnp_fixups; *f->id; f++) { |
| if (!compare_pnp_id(dev->id, f->id)) |
| continue; |
| pnp_dbg(&dev->dev, "%s: calling %pF\n", f->id, |
| f->quirk_function); |
| f->quirk_function(dev); |
| } |
| } |