src/arch/i386/lib/pci_ops.c

   1 #include <console/console.h>
   2 #include <arch/io.h>
   3 #include <arch/pciconf.h>
   4 #include <device/pci.h>
   5 #include <device/pci_ids.h>
   6 #include <device/pci_ops.h>
   7
   8 const struct pci_ops *conf = 0;
   9
  10 /*
  11  * Direct access to PCI hardware...
  12  */
  13
  14 uint8_t pci_read_config8(device_t dev, unsigned where)
  15 {
  16         uint8_t value;
  17         value = conf->read8(dev->bus->secondary, dev->path.u.pci.devfn, where);
  18         printk_spew("Read config 8 bus %d,devfn 0x%x,reg 0x%x,val 0x%x\n",
  19                     dev->bus->secondary, dev->path.u.pci.devfn, where, value);
  20         return value;
  21 }
  22
  23 uint16_t pci_read_config16(device_t dev, unsigned where)
  24 {
  25         uint16_t value;
  26         value = conf->read16(dev->bus->secondary, dev->path.u.pci.devfn, where);
  27         printk_spew( "Read config 16 bus %d,devfn 0x%x,reg 0x%x,val 0x%x\n",
  28                      dev->bus->secondary, dev->path.u.pci.devfn, where, value);
  29         return value;
  30 }
  31
  32 uint32_t pci_read_config32(device_t dev, unsigned where)
  33 {
  34         uint32_t value;
  35         value = conf->read32(dev->bus->secondary, dev->path.u.pci.devfn, where);
  36         printk_spew( "Read config 32 bus %d,devfn 0x%x,reg 0x%x,val 0x%x\n",
  37                      dev->bus->secondary, dev->path.u.pci.devfn, where, value);
  38         return value;
  39 }
  40
  41 void pci_write_config8(device_t dev, unsigned where, uint8_t val)
  42 {
  43         printk_spew( "Write config 8 bus %d, devfn 0x%x, reg 0x%x, val 0x%x\n",
  44                      dev->bus->secondary, dev->path.u.pci.devfn, where, val);
  45         conf->write8(dev->bus->secondary, dev->path.u.pci.devfn, where, val);
  46 }
  47
  48 void pci_write_config16(device_t dev, unsigned where, uint16_t val)
  49 {
  50         printk_spew( "Write config 16 bus %d, devfn 0x%x, reg 0x%x, val 0x%x\n",
  51                      dev->bus->secondary, dev->path.u.pci.devfn, where, val);
  52         conf->write16(dev->bus->secondary, dev->path.u.pci.devfn, where, val);
  53 }
  54
  55 void pci_write_config32(device_t dev, unsigned where, uint32_t val)
  56 {
  57         printk_spew( "Write config 32 bus %d, devfn 0x%x, reg 0x%x, val 0x%x\n",
  58                      dev->bus->secondary, dev->path.u.pci.devfn, where, val);
  59         conf->write32(dev->bus->secondary, dev->path.u.pci.devfn, where, val);
  60 }