tests/libqos/pci.h

   1 /*
   2  * libqos PCI bindings
   3  *
   4  * Copyright IBM, Corp. 2012-2013
   5  *
   6  * Authors:
   7  *  Anthony Liguori   <aliguori@us.ibm.com>
   8  *
   9  * This work is licensed under the terms of the GNU GPL, version 2 or later.
  10  * See the COPYING file in the top-level directory.
  11  */
  12
  13 #ifndef LIBQOS_PCI_H
  14 #define LIBQOS_PCI_H
  15
  16 #include <stdint.h>
  17
  18 #define QPCI_DEVFN(dev, fn) (((dev) << 3) | (fn))
  19
  20 typedef struct QPCIDevice QPCIDevice;
  21 typedef struct QPCIBus QPCIBus;
  22
  23 struct QPCIBus
  24 {
  25     uint8_t (*io_readb)(QPCIBus *bus, void *addr);
  26     uint16_t (*io_readw)(QPCIBus *bus, void *addr);
  27     uint32_t (*io_readl)(QPCIBus *bus, void *addr);
  28
  29     void (*io_writeb)(QPCIBus *bus, void *addr, uint8_t value);
  30     void (*io_writew)(QPCIBus *bus, void *addr, uint16_t value);
  31     void (*io_writel)(QPCIBus *bus, void *addr, uint32_t value);
  32
  33     uint8_t (*config_readb)(QPCIBus *bus, int devfn, uint8_t offset);
  34     uint16_t (*config_readw)(QPCIBus *bus, int devfn, uint8_t offset);
  35     uint32_t (*config_readl)(QPCIBus *bus, int devfn, uint8_t offset);
  36
  37     void (*config_writeb)(QPCIBus *bus, int devfn,
  38                           uint8_t offset, uint8_t value);
  39     void (*config_writew)(QPCIBus *bus, int devfn,
  40                           uint8_t offset, uint16_t value);
  41     void (*config_writel)(QPCIBus *bus, int devfn,
  42                           uint8_t offset, uint32_t value);
  43
  44     void *(*iomap)(QPCIBus *bus, QPCIDevice *dev, int barno);
  45     void (*iounmap)(QPCIBus *bus, void *data);
  46 };
  47
  48 struct QPCIDevice
  49 {
  50     QPCIBus *bus;
  51     int devfn;
  52 };
  53
  54 void qpci_device_foreach(QPCIBus *bus, int vendor_id, int device_id,
  55                          void (*func)(QPCIDevice *dev, int devfn, void *data),
  56                          void *data);
  57 QPCIDevice *qpci_device_find(QPCIBus *bus, int devfn);
  58
  59 void qpci_device_enable(QPCIDevice *dev);
  60
  61 uint8_t qpci_config_readb(QPCIDevice *dev, uint8_t offset);
  62 uint16_t qpci_config_readw(QPCIDevice *dev, uint8_t offset);
  63 uint32_t qpci_config_readl(QPCIDevice *dev, uint8_t offset);
  64
  65 void qpci_config_writeb(QPCIDevice *dev, uint8_t offset, uint8_t value);
  66 void qpci_config_writew(QPCIDevice *dev, uint8_t offset, uint16_t value);
  67 void qpci_config_writel(QPCIDevice *dev, uint8_t offset, uint32_t value);
  68
  69 uint8_t qpci_io_readb(QPCIDevice *dev, void *data);
  70 uint16_t qpci_io_readw(QPCIDevice *dev, void *data);
  71 uint32_t qpci_io_readl(QPCIDevice *dev, void *data);
  72
  73 void qpci_io_writeb(QPCIDevice *dev, void *data, uint8_t value);
  74 void qpci_io_writew(QPCIDevice *dev, void *data, uint16_t value);
  75 void qpci_io_writel(QPCIDevice *dev, void *data, uint32_t value);
  76
  77 void *qpci_iomap(QPCIDevice *dev, int barno);
  78 void qpci_iounmap(QPCIDevice *dev, void *data);
  79
  80 #endif