drivers/pnp/quirks.c

   1 /*
   2  *  This file contains quirk handling code for PnP devices
   3  *  Some devices do not report all their resources, and need to have extra
   4  *  resources added. This is most easily accomplished at initialisation time
   5  *  when building up the resource structure for the first time.
   6  *
   7  *  Copyright (c) 2000 Peter Denison <peterd@pnd-pc.demon.co.uk>
   8  *
   9  *  Heavily based on PCI quirks handling which is
  10  *
  11  *  Copyright (c) 1999 Martin Mares <mj@ucw.cz>
  12  */
  13
  14 #include <linux/types.h>
  15 #include <linux/kernel.h>
  16 #include <linux/string.h>
  17 #include <linux/slab.h>
  18 #include <linux/pnp.h>
  19 #include <linux/io.h>
  20 <<<<<<< HEAD:drivers/pnp/quirks.c
  21 #include <linux/dmi.h>
  22 =======
  23 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:drivers/pnp/quirks.c
  24 #include <linux/kallsyms.h>
  25 #include "base.h"
  26
  27 static void quirk_awe32_resources(struct pnp_dev *dev)
  28 {
  29         struct pnp_port *port, *port2, *port3;
  30         struct pnp_option *res = dev->dependent;
  31
  32         /*
  33          * Unfortunately the isapnp_add_port_resource is too tightly bound
  34          * into the PnP discovery sequence, and cannot be used. Link in the
  35          * two extra ports (at offset 0x400 and 0x800 from the one given) by
  36          * hand.
  37          */
  38         for (; res; res = res->next) {
  39                 port2 = pnp_alloc(sizeof(struct pnp_port));
  40                 if (!port2)
  41                         return;
  42                 port3 = pnp_alloc(sizeof(struct pnp_port));
  43                 if (!port3) {
  44                         kfree(port2);
  45                         return;
  46                 }
  47                 port = res->port;
  48                 memcpy(port2, port, sizeof(struct pnp_port));
  49                 memcpy(port3, port, sizeof(struct pnp_port));
  50                 port->next = port2;
  51                 port2->next = port3;
  52                 port2->min += 0x400;
  53                 port2->max += 0x400;
  54                 port3->min += 0x800;
  55                 port3->max += 0x800;
  56         }
  57         printk(KERN_INFO "pnp: AWE32 quirk - adding two ports\n");
  58 }
  59
  60 static void quirk_cmi8330_resources(struct pnp_dev *dev)
  61 {
  62         struct pnp_option *res = dev->dependent;
  63         unsigned long tmp;
  64
  65         for (; res; res = res->next) {
  66
  67                 struct pnp_irq *irq;
  68                 struct pnp_dma *dma;
  69
  70                 for (irq = res->irq; irq; irq = irq->next) {    // Valid irqs are 5, 7, 10
  71                         tmp = 0x04A0;
  72                         bitmap_copy(irq->map, &tmp, 16);        // 0000 0100 1010 0000
  73                 }
  74
  75                 for (dma = res->dma; dma; dma = dma->next)      // Valid 8bit dma channels are 1,3
  76                         if ((dma->flags & IORESOURCE_DMA_TYPE_MASK) ==
  77                             IORESOURCE_DMA_8BIT)
  78                                 dma->map = 0x000A;
  79         }
  80         printk(KERN_INFO "pnp: CMI8330 quirk - fixing interrupts and dma\n");
  81 }
  82
  83 static void quirk_sb16audio_resources(struct pnp_dev *dev)
  84 {
  85         struct pnp_port *port;
  86         struct pnp_option *res = dev->dependent;
  87         int changed = 0;
  88
  89         /*
  90          * The default range on the mpu port for these devices is 0x388-0x388.
  91          * Here we increase that range so that two such cards can be
  92          * auto-configured.
  93          */
  94
  95         for (; res; res = res->next) {
  96                 port = res->port;
  97                 if (!port)
  98                         continue;
  99                 port = port->next;
 100                 if (!port)
 101                         continue;
 102                 port = port->next;
 103                 if (!port)
 104                         continue;
 105                 if (port->min != port->max)
 106                         continue;
 107                 port->max += 0x70;
 108                 changed = 1;
 109         }
 110         if (changed)
 111                 printk(KERN_INFO
 112                        "pnp: SB audio device quirk - increasing port range\n");
 113 }
 114
 115 <<<<<<< HEAD:drivers/pnp/quirks.c
 116 static void quirk_supermicro_h8dce_system(struct pnp_dev *dev)
 117 =======
 118
 119 #include <linux/pci.h>
 120
 121 static void quirk_system_pci_resources(struct pnp_dev *dev)
 122 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:drivers/pnp/quirks.c
 123 {
 124 <<<<<<< HEAD:drivers/pnp/quirks.c
 125         int i;
 126         static struct dmi_system_id supermicro_h8dce[] = {
 127                 {
 128                         .ident = "Supermicro H8DCE",
 129                         .matches = {
 130                                 DMI_MATCH(DMI_SYS_VENDOR, "Supermicro"),
 131                                 DMI_MATCH(DMI_PRODUCT_NAME, "H8DCE"),
 132                         },
 133                 },
 134                 { }
 135         };
 136
 137         if (!dmi_check_system(supermicro_h8dce))
 138                 return;
 139 =======
 140         struct pci_dev *pdev = NULL;
 141         resource_size_t pnp_start, pnp_end, pci_start, pci_end;
 142         int i, j;
 143 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:drivers/pnp/quirks.c
 144
 145         /*
 146 <<<<<<< HEAD:drivers/pnp/quirks.c
 147          * On the Supermicro H8DCE, there's a system device with resources
 148          * that overlap BAR 6 of the built-in SATA PCI adapter.  If the PNP
 149          * system device claims them, the sata_nv driver won't be able to.
 150          * More details at:
 151          *     https://bugzilla.redhat.com/show_bug.cgi?id=280641
 152          *     https://bugzilla.redhat.com/show_bug.cgi?id=313491
 153          *     http://lkml.org/lkml/2008/1/9/449
 154          *     http://thread.gmane.org/gmane.linux.acpi.devel/27312
 155 =======
 156          * Some BIOSes have PNP motherboard devices with resources that
 157          * partially overlap PCI BARs.  The PNP system driver claims these
 158          * motherboard resources, which prevents the normal PCI driver from
 159          * requesting them later.
 160          *
 161          * This patch disables the PNP resources that conflict with PCI BARs
 162          * so they won't be claimed by the PNP system driver.
 163 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:drivers/pnp/quirks.c
 164          */
 165 <<<<<<< HEAD:drivers/pnp/quirks.c
 166         for (i = 0; i < PNP_MAX_MEM; i++) {
 167                 if (pnp_mem_valid(dev, i) && pnp_mem_len(dev, i) &&
 168                     (pnp_mem_start(dev, i) & 0xdfef0000) == 0xdfef0000) {
 169                         dev_warn(&dev->dev, "disabling 0x%llx-0x%llx to prevent"
 170                                 " conflict with sata_nv PCI device\n",
 171                                 (unsigned long long) pnp_mem_start(dev, i),
 172                                 (unsigned long long) (pnp_mem_start(dev, i) +
 173                                         pnp_mem_len(dev, i) - 1));
 174                         pnp_mem_flags(dev, i) = 0;
 175 =======
 176         for_each_pci_dev(pdev) {
 177                 for (i = 0; i < DEVICE_COUNT_RESOURCE; i++) {
 178                         if (!(pci_resource_flags(pdev, i) & IORESOURCE_MEM) ||
 179                             pci_resource_len(pdev, i) == 0)
 180                                 continue;
 181
 182                         pci_start = pci_resource_start(pdev, i);
 183                         pci_end = pci_resource_end(pdev, i);
 184                         for (j = 0; j < PNP_MAX_MEM; j++) {
 185                                 if (!pnp_mem_valid(dev, j) ||
 186                                     pnp_mem_len(dev, j) == 0)
 187                                         continue;
 188
 189                                 pnp_start = pnp_mem_start(dev, j);
 190                                 pnp_end = pnp_mem_end(dev, j);
 191
 192                                 /*
 193                                  * If the PNP region doesn't overlap the PCI
 194                                  * region at all, there's no problem.
 195                                  */
 196                                 if (pnp_end < pci_start || pnp_start > pci_end)
 197                                         continue;
 198
 199                                 /*
 200                                  * If the PNP region completely encloses (or is
 201                                  * at least as large as) the PCI region, that's
 202                                  * also OK.  For example, this happens when the
 203                                  * PNP device describes a bridge with PCI
 204                                  * behind it.
 205                                  */
 206                                 if (pnp_start <= pci_start &&
 207                                     pnp_end >= pci_end)
 208                                         continue;
 209
 210                                 /*
 211                                  * Otherwise, the PNP region overlaps *part* of
 212                                  * the PCI region, and that might prevent a PCI
 213                                  * driver from requesting its resources.
 214                                  */
 215                                 dev_warn(&dev->dev, "mem resource "
 216                                         "(0x%llx-0x%llx) overlaps %s BAR %d "
 217                                         "(0x%llx-0x%llx), disabling\n",
 218                                         (unsigned long long) pnp_start,
 219                                         (unsigned long long) pnp_end,
 220                                         pci_name(pdev), i,
 221                                         (unsigned long long) pci_start,
 222                                         (unsigned long long) pci_end);
 223                                 pnp_mem_flags(dev, j) = 0;
 224                         }
 225 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:drivers/pnp/quirks.c
 226                 }
 227         }
 228 }
 229
 230 /*
 231  *  PnP Quirks
 232  *  Cards or devices that need some tweaking due to incomplete resource info
 233  */
 234
 235 static struct pnp_fixup pnp_fixups[] = {
 236         /* Soundblaster awe io port quirk */
 237         {"CTL0021", quirk_awe32_resources},
 238         {"CTL0022", quirk_awe32_resources},
 239         {"CTL0023", quirk_awe32_resources},
 240         /* CMI 8330 interrupt and dma fix */
 241         {"@X@0001", quirk_cmi8330_resources},
 242         /* Soundblaster audio device io port range quirk */
 243         {"CTL0001", quirk_sb16audio_resources},
 244         {"CTL0031", quirk_sb16audio_resources},
 245         {"CTL0041", quirk_sb16audio_resources},
 246         {"CTL0042", quirk_sb16audio_resources},
 247         {"CTL0043", quirk_sb16audio_resources},
 248         {"CTL0044", quirk_sb16audio_resources},
 249         {"CTL0045", quirk_sb16audio_resources},
 250 <<<<<<< HEAD:drivers/pnp/quirks.c
 251         {"PNP0c01", quirk_supermicro_h8dce_system},
 252         {"PNP0c02", quirk_supermicro_h8dce_system},
 253 =======
 254         {"PNP0c01", quirk_system_pci_resources},
 255         {"PNP0c02", quirk_system_pci_resources},
 256 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:drivers/pnp/quirks.c
 257         {""}
 258 };
 259
 260 void pnp_fixup_device(struct pnp_dev *dev)
 261 {
 262         int i = 0;
 263         void (*quirk)(struct pnp_dev *);
 264
 265         while (*pnp_fixups[i].id) {
 266                 if (compare_pnp_id(dev->id, pnp_fixups[i].id)) {
 267                         quirk = pnp_fixups[i].quirk_function;
 268
 269 #ifdef DEBUG
 270                         dev_dbg(&dev->dev, "calling quirk 0x%p", quirk);
 271                         print_fn_descriptor_symbol(": %s()\n",
 272                                 (unsigned long) *quirk);
 273 #endif
 274                         (*quirk)(dev);
 275                 }
 276                 i++;
 277         }
 278 }