211 lines
4.9 KiB
C
211 lines
4.9 KiB
C
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#ifndef _DDEKIT_PCI_H
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#define _DDEKIT_PCI_H
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#include <ddekit/ddekit.h>
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#include <ddekit/types.h>
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/** \defgroup DDEKit_pci */
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/** Our version of PCI_ANY_ID */
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#define DDEKIT_PCI_ANY_ID (~0)
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/** Copy of L4IO_PCIDEV_RES */
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#define DDEKIT_PCIDEV_RES 12
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struct ddekit_pci_dev;
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/** PCI resource descriptor. Copied from generic_io.
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*
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* XXX!
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*/
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typedef struct ddekit_pci_resource {
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unsigned long start;
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unsigned long end;
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unsigned long flags;
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} ddekit_pci_res_t;
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void ddekit_pci_init(void);
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int ddekit_pci_get_device(int nr, int *bus, int *slot, int *func);
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int ddekit_pci_read(int bus, int slot, int func, int pos, int len,
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ddekit_uint32_t *val);
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int ddekit_pci_write(int bus, int slot, int func, int pos, int len,
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ddekit_uint32_t val);
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/** Read byte from PCI config space.
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*
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* \ingroup DDEKit_pci
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*
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* \param bus bus ID
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* \param slot slot #
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* \param func function #
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* \param pos offset in config space
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* \retval val read value
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*
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* \return 0 success
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*/
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int ddekit_pci_readb(int bus, int slot, int func, int pos,
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ddekit_uint8_t *val);
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/** Read word from PCI config space.
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*
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* \ingroup DDEKit_pci
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*
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* \param bus bus ID
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* \param slot slot #
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* \param func function #
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* \param pos offset in config space
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* \retval val read value
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*
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* \return 0 success
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*/
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int ddekit_pci_readw(int bus, int slot, int func, int pos,
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ddekit_uint16_t *val);
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/** Read dword from PCI config space.
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*
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* \ingroup DDEKit_pci
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*
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* \param bus bus ID
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* \param slot slot #
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* \param func function #
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* \param pos offset in config space
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* \retval val read value
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*
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* \return 0 success
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*/
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int ddekit_pci_readl(int bus, int slot, int func, int pos,
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ddekit_uint32_t *val);
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/** Write byte to PCI config space.
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*
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* \ingroup DDEKit_pci
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*
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* \param bus bus ID
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* \param slot slot #
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* \param func function #
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* \param pos offset in config space
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* \retval val value to write
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*
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* \return 0 success
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*/
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int ddekit_pci_writeb(int bus, int slot, int func, int pos,
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ddekit_uint8_t val);
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/** Write word to PCI config space.
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*
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* \ingroup DDEKit_pci
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*
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* \param bus bus ID
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* \param slot slot #
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* \param func function #
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* \param pos offset in config space
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* \retval val value to write
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*
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* \return 0 success
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*/
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int ddekit_pci_writew(int bus, int slot, int func, int pos,
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ddekit_uint16_t val);
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/** Write word to PCI config space.
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*
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* \ingroup DDEKit_pci
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*
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* \param bus bus ID
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* \param slot slot #
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* \param func function #
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* \param pos offset in config space
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* \retval val value to write
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*
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* \return 0 success
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*/
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int ddekit_pci_writel(int bus, int slot, int func, int pos,
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ddekit_uint32_t val);
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/** Find a PCI device.
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*
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* \ingroup DDEKit_pci
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*
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* \param bus pointer to bus number or \ref DDEKIT_PCI_ANY_ID
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* \param slot pointer to slot number (devfn >> DEVFN_SLOTSHIFT) or \ref DDEKIT_PCI_ANY_ID
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* \param func pointer to func number (devfc & DEVFN_FUNCMASK) or \ref DDEKIT_PCI_ANY_ID
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* \param start search device list only behind this device (excluding it!), NULL
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* searches whole device list
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*
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* \retval bus bus number
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* \retval slot slot number
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* \retval func function number
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*
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* \return device a valid PCI device
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* \return NULL if no device found
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*/
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struct ddekit_pci_dev * ddekit_pci_find_device(int *bus, int *slot, int
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*func, struct ddekit_pci_dev *start);
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/** Enable PCI device
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* \ingroup DDEKit_pci
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*/
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int ddekit_pci_enable_device(struct ddekit_pci_dev *dev);
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/** Disable PCI device
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* \ingroup DDEKit_pci
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*/
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int ddekit_pci_disable_device(struct ddekit_pci_dev *dev);
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/** Enable bus-mastering for device.
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* \ingroup DDEKit_pci
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*/
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void ddekit_pci_set_master(struct ddekit_pci_dev *dev);
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/** Get device vendor ID.
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* \ingroup DDEKit_pci
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*/
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unsigned short ddekit_pci_get_vendor(struct ddekit_pci_dev *dev);
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/** Get device ID.
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* \ingroup DDEKit_pci
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*/
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unsigned short ddekit_pci_get_device_id(struct ddekit_pci_dev *dev);
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/** Get device subvendor ID.
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* \ingroup DDEKit_pci
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*/
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unsigned short ddekit_pci_get_sub_vendor(struct ddekit_pci_dev *dev);
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/** Get subdevice ID.
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* \ingroup DDEKit_pci
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*/
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unsigned short ddekit_pci_get_sub_device(struct ddekit_pci_dev *dev);
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/** Get device class ID.
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* \ingroup DDEKit_pci
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*/
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unsigned ddekit_pci_get_dev_class(struct ddekit_pci_dev *dev);
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/** Get device's IRQ number.
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* \ingroup DDEKit_pci
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*/
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unsigned long ddekit_pci_get_irq(struct ddekit_pci_dev *dev);
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/** Get device name.
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* \ingroup DDEKit_pci
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*/
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char *ddekit_pci_get_name(struct ddekit_pci_dev *dev);
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/** Get device's slot name.
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* \ingroup DDEKit_pci
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*/
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char *ddekit_pci_get_slot_name(struct ddekit_pci_dev *dev);
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/** Get one of the device's resources.
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* \ingroup DDEKit_pci
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*/
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ddekit_pci_res_t *ddekit_pci_get_resource(struct ddekit_pci_dev *dev,
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unsigned int idx);
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int ddekit_pci_irq_enable(int bus, int slot, int func, int pin, int
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*irq);
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#endif
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