diff options
Diffstat (limited to 'sys/include/dev/pci')
| -rw-r--r-- | sys/include/dev/pci/pci.h | 70 | ||||
| -rw-r--r-- | sys/include/dev/pci/pcivar.h | 40 |
2 files changed, 110 insertions, 0 deletions
diff --git a/sys/include/dev/pci/pci.h b/sys/include/dev/pci/pci.h new file mode 100644 index 0000000..c17a08e --- /dev/null +++ b/sys/include/dev/pci/pci.h @@ -0,0 +1,70 @@ +/* + * Copyright (c) 2023-2024 Ian Marco Moffett and the Osmora Team. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of Hyra nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef _DEV_PCI_H_ +#define _DEV_PCI_H_ + +#include <sys/syscall.h> +#include <sys/queue.h> +#include <sys/cdefs.h> + +/* Lookup bits */ +#define PCI_DEVICE_ID __BIT(0) +#define PCI_VENDOR_ID __BIT(1) +#define PCI_CLASS __BIT(2) +#define PCI_SUBCLASS __BIT(3) + +/* For PCI lookups */ +struct pci_lookup { + uint16_t device_id; + uint16_t vendor_id; + uint8_t pci_class; + uint8_t pci_subclass; +}; + +struct pci_device { + uint8_t bus; + uint8_t slot; + uint8_t func; + + uint16_t device_id; + uint16_t vendor_id; + uint8_t pci_class; + uint8_t pci_subclass; + uint8_t prog_if; + uintptr_t bar[6]; + uint8_t irq_line; + TAILQ_ENTRY(pci_device) link; +}; + +int pci_init(void); +uint32_t pci_readl(struct pci_device *dev, uint32_t offset); +struct pci_device *pci_get_device(struct pci_lookup lookup, uint16_t lookup_type); + +#endif /* !_DEV_PCI_H_ */ diff --git a/sys/include/dev/pci/pcivar.h b/sys/include/dev/pci/pcivar.h new file mode 100644 index 0000000..ba45a53 --- /dev/null +++ b/sys/include/dev/pci/pcivar.h @@ -0,0 +1,40 @@ +/* + * Copyright (c) 2023-2024 Ian Marco Moffett and the Osmora Team. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of Hyra nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef _DEV_PCIVAR_H_ +#define _DEV_PCIVAR_H_ + +#include <sys/types.h> + +enum { + PCI_ACCESS_CAM, + PCI_ACCESS_ECAM +}; + +#endif /* !_DEV_PCIVAR_H_ */ |