-
-
+/* SPDX-License-Identifier: GPL-2.0+ */
/*
* (C) Copyright 2002
* Daniel Engström, Omicron Ceti AB, daniel@omicron.se
+ */
+
+#ifndef _PCI_I386_H_
+#define _PCI_I386_H_
+
+#include <pci.h>
+
+/* bus mapping constants (used for PCI core initialization) */
+#define PCI_REG_ADDR 0xcf8
+#define PCI_REG_DATA 0xcfc
+
+#define PCI_CFG_EN 0x80000000
+
+#ifndef __ASSEMBLY__
+
+/**
+ * pci_x86_read_config() - Read a configuration value from a device
*
- * See file CREDITS for list of people who contributed to this
- * project.
+ * This function can be called before PCI is set up in driver model.
*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
+ * @bdf: PCI device address: bus, device and function -see PCI_BDF()
+ * @offset: Register offset to read
+ * @valuep: Place to put the returned value
+ * @size: Access size
+ * Return: 0 if OK, -ve on error
+ */
+int pci_x86_read_config(pci_dev_t bdf, uint offset, ulong *valuep,
+ enum pci_size_t size);
+
+/**
+ * pci_bus_write_config() - Write a configuration value to a device
*
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
+ * This function can be called before PCI is set up in driver model.
*
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
+ * @bdf: PCI device address: bus, device and function -see PCI_BDF()
+ * @offset: Register offset to write
+ * @value: Value to write
+ * @size: Access size
+ * Return: 0 if OK, -ve on error
*/
+int pci_x86_write_config(pci_dev_t bdf, uint offset, ulong value,
+ enum pci_size_t size);
-#ifndef _PCI_I386_H_
-#define _PCI_I386_H_
+/**
+ * pci_bus_clrset_config32() - Update a configuration value for a device
+ *
+ * The register at @offset is updated to (oldvalue & ~clr) | set. This function
+ * can be called before PCI is set up in driver model.
+ *
+ * @bdf: PCI device address: bus, device and function -see PCI_BDF()
+ * @offset: Register offset to update
+ * @clr: Bits to clear
+ * @set: Bits to set
+ * Return: 0 if OK, -ve on error
+ */
+int pci_x86_clrset_config(pci_dev_t bdf, uint offset, ulong clr, ulong set,
+ enum pci_size_t size);
+
+/**
+ * Assign IRQ number to a PCI device
+ *
+ * This function assigns IRQ for a PCI device. If the device does not exist
+ * or does not require interrupts then this function has no effect.
+ *
+ * @bus: PCI bus number
+ * @device: PCI device number
+ * @irq: An array of IRQ numbers that are assigned to INTA through
+ * INTD of this PCI device.
+ */
+void pci_assign_irqs(int bus, int device, u8 irq[4]);
-#define DEFINE_PCI_DEVICE_TABLE(_table) \
- const struct pci_device_id _table[]
+#endif /* __ASSEMBLY__ */
-void pci_setup_type1(struct pci_controller *hose);
-int pci_enable_legacy_video_ports(struct pci_controller* hose);
-int pci_shadow_rom(pci_dev_t dev, unsigned char *dest);
-void pci_remove_rom_window(struct pci_controller* hose, u32 addr);
-u32 pci_get_rom_window(struct pci_controller* hose, int size);
-#endif
+#endif /* _PCI_I386_H_ */