#ifndef _DDEKIT_PCI_H
#define _DDEKIT_PCI_H
#include <ddekit/ddekit.h>

#include <ddekit/types.h>

/** \defgroup DDEKit_pci */

/** Our version of PCI_ANY_ID */
#define DDEKIT_PCI_ANY_ID    (~0)

/** Copy of L4IO_PCIDEV_RES */
#define DDEKIT_PCIDEV_RES	 12

struct ddekit_pci_dev;

/** PCI resource descriptor. Copied from generic_io. 
 *
 * XXX!
 */
typedef struct ddekit_pci_resource {
	unsigned long start;
	unsigned long end;
	unsigned long flags;
} ddekit_pci_res_t;

_PROTOTYPE( void ddekit_pci_init, (void));

_PROTOTYPE( int ddekit_pci_get_device,(int nr,    int *bus,
                                       int *slot, int *func));

_PROTOTYPE( int ddekit_pci_read,  (int bus, int slot, int func,
                                   int pos, int len, ddekit_uint32_t *val));
_PROTOTYPE( int ddekit_pci_write, (int bus, int slot, int func,
                                   int pos, int len, ddekit_uint32_t val));

/** Read byte from PCI config space.
 *
 * \ingroup DDEKit_pci
 *
 * \param bus      bus ID
 * \param slot     slot #
 * \param func     function #
 * \param pos      offset in config space
 * \retval val     read value
 *
 * \return 0       success
 */
_PROTOTYPE( int ddekit_pci_readb, (int bus,  int slot,
                                   int func, int pos, ddekit_uint8_t  *val));

/** Read word from PCI config space.
 *
 * \ingroup DDEKit_pci
 *
 * \param bus      bus ID
 * \param slot     slot #
 * \param func     function #
 * \param pos      offset in config space
 * \retval val     read value
 *
 * \return 0       success
 */
_PROTOTYPE( int ddekit_pci_readw, (int bus,  int slot,
                                   int func, int pos, ddekit_uint16_t *val));

/** Read dword from PCI config space.
 *
 * \ingroup DDEKit_pci
 *
 * \param bus      bus ID
 * \param slot     slot #
 * \param func     function #
 * \param pos      offset in config space
 * \retval val     read value
 *
 * \return 0       success
 */
_PROTOTYPE( int ddekit_pci_readl, (int bus,  int slot,
                                   int func, int pos, ddekit_uint32_t *val));

/** Write byte to PCI config space.
 *
 * \ingroup DDEKit_pci
 *
 * \param bus      bus ID
 * \param slot     slot #
 * \param func     function #
 * \param pos      offset in config space
 * \retval val     value to write
 *
 * \return 0       success
 */
_PROTOTYPE( int ddekit_pci_writeb, (int bus,  int slot,
                                    int func, int pos, ddekit_uint8_t val));

/** Write word to PCI config space.
 *
 * \ingroup DDEKit_pci
 *
 * \param bus      bus ID
 * \param slot     slot #
 * \param func     function #
 * \param pos      offset in config space
 * \retval val     value to write
 *
 * \return 0       success
 */
_PROTOTYPE( int ddekit_pci_writew, (int bus,  int slot,
                                    int func, int pos, ddekit_uint16_t  val));

/** Write word to PCI config space.
 *
 * \ingroup DDEKit_pci
 *
 * \param bus      bus ID
 * \param slot     slot #
 * \param func     function #
 * \param pos      offset in config space
 * \retval val     value to write
 *
 * \return 0       success
 */
_PROTOTYPE( int ddekit_pci_writel, (int bus, int slot,
                                    int func, int pos, ddekit_uint32_t  val));

/** Find a PCI device.
 *
 * \ingroup DDEKit_pci
 *
 * \param bus	pointer to bus number or \ref DDEKIT_PCI_ANY_ID
 * \param slot  pointer to slot number (devfn >> DEVFN_SLOTSHIFT) or \ref DDEKIT_PCI_ANY_ID
 * \param func  pointer to func number (devfc & DEVFN_FUNCMASK) or \ref DDEKIT_PCI_ANY_ID
 * \param start search device list only behind this device (excluding it!), NULL
 *              searches whole device list
 *
 * \retval bus      bus number
 * \retval slot     slot number
 * \retval func     function number
 *
 * \return device   a valid PCI device
 * \return NULL     if no device found
 */
_PROTOTYPE( struct ddekit_pci_dev * ddekit_pci_find_device, 
            (int *bus, int *slot, int *func, struct ddekit_pci_dev *start));

/** Enable PCI device
 * \ingroup DDEKit_pci
 */
_PROTOTYPE( int ddekit_pci_enable_device, (struct ddekit_pci_dev *dev));

/** Disable PCI device
 * \ingroup DDEKit_pci
 */
_PROTOTYPE( int ddekit_pci_disable_device, (struct ddekit_pci_dev *dev));

/** Enable bus-mastering for device.
 * \ingroup DDEKit_pci
 */
_PROTOTYPE( void ddekit_pci_set_master, (struct ddekit_pci_dev *dev));

/** Get device vendor ID.
 * \ingroup DDEKit_pci
 */
_PROTOTYPE( unsigned short ddekit_pci_get_vendor,
            (struct ddekit_pci_dev *dev));

/** Get device ID.
 * \ingroup DDEKit_pci
 */
_PROTOTYPE( unsigned short ddekit_pci_get_device_id,
            (struct ddekit_pci_dev *dev));

/** Get device subvendor ID.
 * \ingroup DDEKit_pci
 */
_PROTOTYPE( unsigned short ddekit_pci_get_sub_vendor,
            (struct ddekit_pci_dev *dev));

/** Get subdevice ID.
 * \ingroup DDEKit_pci
 */
_PROTOTYPE( unsigned short ddekit_pci_get_sub_device,
            (struct ddekit_pci_dev *dev));

/** Get device class ID.
 * \ingroup DDEKit_pci
 */
_PROTOTYPE( unsigned ddekit_pci_get_dev_class, 
            (struct ddekit_pci_dev *dev));

/** Get device's IRQ number.
 * \ingroup DDEKit_pci
 */
_PROTOTYPE( unsigned long ddekit_pci_get_irq,
            (struct ddekit_pci_dev *dev));

/** Get device name.
 * \ingroup DDEKit_pci
 */
_PROTOTYPE( char *ddekit_pci_get_name, (struct ddekit_pci_dev *dev));

/** Get device's slot name.
 * \ingroup DDEKit_pci
 */
_PROTOTYPE( char *ddekit_pci_get_slot_name, (struct ddekit_pci_dev *dev));

/** Get one of the device's resources.
 * \ingroup DDEKit_pci
 */
_PROTOTYPE( ddekit_pci_res_t *ddekit_pci_get_resource,
            (struct ddekit_pci_dev *dev, unsigned int idx));

_PROTOTYPE( int ddekit_pci_irq_enable, (int bus,  int slot, 
                                        int func, int pin, int *irq));

#endif