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-rw-r--r--qemu/roms/qemu-palcode/pci.h68
1 files changed, 68 insertions, 0 deletions
diff --git a/qemu/roms/qemu-palcode/pci.h b/qemu/roms/qemu-palcode/pci.h
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index 000000000..b751c6f66
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+++ b/qemu/roms/qemu-palcode/pci.h
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+/* Simplistic PCI support.
+
+ Copyright (C) 2011 Richard Henderson
+
+ This file is part of QEMU PALcode.
+
+ 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.
+
+ 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 text
+ of the GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; see the file COPYING. If not see
+ <http://www.gnu.org/licenses/>. */
+
+/* This header is intended to be compatible with the pci.h from SeaBIOS.
+ Their header, however, is too PC specific to be of use. */
+
+#ifndef PCI_H
+#define PCI_H 1
+
+extern void *pci_conf_base;
+
+static inline void pci_config_writel(int bdf, uint8_t addr, uint32_t val)
+{
+ *(volatile uint32_t *)(pci_conf_base + bdf * 256 + addr) = val;
+}
+
+static inline void pci_config_writew(int bdf, uint8_t addr, uint16_t val)
+{
+ *(volatile uint16_t *)(pci_conf_base + bdf * 256 + addr) = val;
+}
+
+static inline void pci_config_writeb(int bdf, uint8_t addr, uint8_t val)
+{
+ *(volatile uint8_t *)(pci_conf_base + bdf * 256 + addr) = val;
+}
+
+static inline uint32_t pci_config_readl(int bdf, uint8_t addr)
+{
+ return *(volatile uint32_t *)(pci_conf_base + bdf * 256 + addr);
+}
+
+static inline uint16_t pci_config_readw(int bdf, uint8_t addr)
+{
+ return *(volatile uint16_t *)(pci_conf_base + bdf * 256 + addr);
+}
+
+static inline uint8_t pci_config_readb(int bdf, uint8_t addr)
+{
+ return *(volatile uint8_t *)(pci_conf_base + bdf * 256 + addr);
+}
+
+extern void pci_config_maskw(int bdf, int addr, uint16_t off, uint16_t on);
+
+extern int pci_next(int bdf, int *pmax);
+
+#define foreachpci(BDF, MAX) \
+ for (MAX = 0x0100, BDF = pci_next(0, &MAX); \
+ BDF >= 0; \
+ BDF = pci_next(BDF+1, &MAX))
+
+#endif /* PCI_H */