576b74fcc8
bridges with support for 64 bit memory addresses and 32 bit I/O addresses). The code is not complete. It ignores the upper half of the long addresses. This is not a problem on PC compatible systems, but has to be fixed for real computers.
38 lines
1012 B
C
38 lines
1012 B
C
#ifndef _PCI_IOCTL_H
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#define _PCI_IOCTL_H 1
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#include <sys/ioccom.h>
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struct pcisel {
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u_char pc_bus; /* bus number */
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u_char pc_dev; /* device on this bus */
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u_char pc_func; /* function on this device */
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};
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struct pci_conf {
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struct pcisel pc_sel; /* bus+slot+function */
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u_char pc_hdr; /* PCI header type */
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pcidi_t pc_devid; /* device ID */
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pcidi_t pc_subid; /* subvendor ID */
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u_int32_t pc_class; /* device class */
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};
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struct pci_conf_io {
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size_t pci_len; /* length of buffer */
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struct pci_conf *pci_buf; /* buffer */
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};
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struct pci_io {
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struct pcisel pi_sel; /* device to operate on */
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int pi_reg; /* configuration register to examine */
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int pi_width; /* width (in bytes) of read or write */
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u_int32_t pi_data; /* data to write or result of read */
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};
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#define PCIOCGETCONF _IOWR('p', 1, struct pci_conf_io)
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#define PCIOCREAD _IOWR('p', 2, struct pci_io)
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#define PCIOCWRITE _IOWR('p', 3, struct pci_io)
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#endif /* _PCI_IOCTL_H */
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