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Diffstat (limited to 'qemu/roms/openbios/include/arch/ppc/io.h')
-rw-r--r--qemu/roms/openbios/include/arch/ppc/io.h208
1 files changed, 208 insertions, 0 deletions
diff --git a/qemu/roms/openbios/include/arch/ppc/io.h b/qemu/roms/openbios/include/arch/ppc/io.h
new file mode 100644
index 000000000..3449c5bf0
--- /dev/null
+++ b/qemu/roms/openbios/include/arch/ppc/io.h
@@ -0,0 +1,208 @@
+#ifndef _ASM_IO_H
+#define _ASM_IO_H
+
+#include "asm/types.h"
+
+#define NO_QEMU_PROTOS
+#include "arch/common/fw_cfg.h"
+
+extern char _start, _end;
+extern unsigned long virt_offset;
+
+#define phys_to_virt(phys) ((void *) ((unsigned long) (phys) - virt_offset))
+#define virt_to_phys(virt) ((unsigned long) (virt) + virt_offset)
+
+#ifndef BOOTSTRAP
+
+extern unsigned long isa_io_base;
+
+/*
+ * 8, 16 and 32 bit, big and little endian I/O operations, with barrier.
+ */
+static inline uint8_t in_8(volatile uint8_t *addr)
+{
+ uint8_t ret;
+
+ __asm__ __volatile__("lbz%U1%X1 %0,%1; eieio":"=r"(ret):"m"(*addr));
+ return ret;
+}
+
+static inline void out_8(volatile uint8_t *addr, uint8_t val)
+{
+ __asm__ __volatile__("stb%U0%X0 %1,%0; eieio":"=m"(*addr):"r"(val));
+}
+
+static inline uint16_t in_le16(volatile uint16_t *addr)
+{
+ uint16_t ret;
+
+ __asm__ __volatile__("lhbrx %0,0,%1; eieio":"=r"(ret):
+ "r"(addr), "m"(*addr));
+ return ret;
+}
+
+static inline uint16_t in_be16(volatile uint16_t *addr)
+{
+ uint16_t ret;
+
+ __asm__ __volatile__("lhz%U1%X1 %0,%1; eieio":"=r"(ret):"m"(*addr));
+ return ret;
+}
+
+static inline void out_le16(volatile uint16_t *addr, uint16_t val)
+{
+ __asm__ __volatile__("sthbrx %1,0,%2; eieio":"=m"(*addr):"r"(val),
+ "r"(addr));
+}
+
+static inline void out_be16(volatile uint16_t *addr, uint16_t val)
+{
+ __asm__ __volatile__("sth%U0%X0 %1,%0; eieio":"=m"(*addr):"r"(val));
+}
+
+static inline uint32_t in_le32(volatile uint32_t *addr)
+{
+ uint32_t ret;
+
+ __asm__ __volatile__("lwbrx %0,0,%1; eieio":"=r"(ret):
+ "r"(addr), "m"(*addr));
+ return ret;
+}
+
+static inline uint32_t in_be32(volatile uint32_t *addr)
+{
+ uint32_t ret;
+
+ __asm__ __volatile__("lwz%U1%X1 %0,%1; eieio":"=r"(ret):"m"(*addr));
+ return ret;
+}
+
+static inline void out_le32(volatile uint32_t *addr, uint32_t val)
+{
+ __asm__ __volatile__("stwbrx %1,0,%2; eieio":"=m"(*addr):"r"(val),
+ "r"(addr));
+}
+
+static inline void out_be32(volatile unsigned *addr, uint32_t val)
+{
+ __asm__ __volatile__("stw%U0%X0 %1,%0; eieio":"=m"(*addr):"r"(val));
+}
+
+static inline void _insw_ns(volatile uint16_t * port, void *buf, int ns)
+{
+ uint16_t *b = (uint16_t *) buf;
+
+ while (ns > 0) {
+ *b++ = in_le16(port);
+ ns--;
+ }
+}
+
+static inline void _outsw_ns(volatile uint16_t * port, const void *buf,
+ int ns)
+{
+ uint16_t *b = (uint16_t *) buf;
+
+ while (ns > 0) {
+ out_le16(port, *b++);
+ ns--;
+ }
+}
+
+static inline void _insw(volatile uint16_t * port, void *buf, int ns)
+{
+ uint16_t *b = (uint16_t *) buf;
+
+ while (ns > 0) {
+ *b++ = in_be16(port);
+ ns--;
+ }
+}
+
+static inline void _outsw(volatile uint16_t * port, const void *buf,
+ int ns)
+{
+ uint16_t *b = (uint16_t *) buf;
+
+ while (ns > 0) {
+ out_be16(port, *b++);
+ ns--;
+ }
+}
+
+
+/*
+ * The insw/outsw/insl/outsl functions don't do byte-swapping.
+ * They are only used in practice for transferring buffers which
+ * are arrays of bytes, and byte-swapping is not appropriate in
+ * that case. - paulus
+ */
+
+static inline void insw(uint16_t port, void *buf, int ns)
+{
+ _insw((uint16_t *)(port + isa_io_base), buf, ns);
+}
+
+static inline void outsw(uint16_t port, void *buf, int ns)
+{
+ _outsw((uint16_t *)(port + isa_io_base), buf, ns);
+}
+
+
+static inline uint8_t inb(uint16_t port)
+{
+ return in_8((uint8_t *)(port + isa_io_base));
+}
+
+static inline void outb(uint8_t val, uint16_t port)
+{
+ out_8((uint8_t *)(port + isa_io_base), val);
+}
+
+static inline uint16_t inw(uint16_t port)
+{
+ return in_le16((uint16_t *)(port + isa_io_base));
+}
+
+static inline void outw(uint16_t val, uint16_t port)
+{
+ out_le16((uint16_t *)(port + isa_io_base), val);
+}
+
+static inline uint32_t inl(uint16_t port)
+{
+ return in_le32((uint32_t *)(port + isa_io_base));
+}
+
+static inline void outl(uint32_t val, uint16_t port)
+{
+ out_le32((uint32_t *)(port + isa_io_base), val);
+}
+
+#else /* BOOTSTRAP */
+#ifdef FCOMPILER
+#define inb(reg) ((u8)0xff)
+#define inw(reg) ((u16)0xffff)
+#define inl(reg) ((u32)0xffffffff)
+#define outb(reg, val) do{} while(0)
+#define outw(reg, val) do{} while(0)
+#define outl(reg, val) do{} while(0)
+#else
+extern u8 inb(u32 reg);
+extern u16 inw(u32 reg);
+extern u32 inl(u32 reg);
+extern void insw(u32 reg, void *addr, unsigned long count);
+extern void outb(u32 reg, u8 val);
+extern void outw(u32 reg, u16 val);
+extern void outl(u32 reg, u32 val);
+extern void outsw(u32 reg, const void *addr, unsigned long count);
+#endif
+#endif
+
+#if defined(CONFIG_QEMU)
+#define FW_CFG_ARCH_WIDTH (FW_CFG_ARCH_LOCAL + 0x00)
+#define FW_CFG_ARCH_HEIGHT (FW_CFG_ARCH_LOCAL + 0x01)
+#define FW_CFG_ARCH_DEPTH (FW_CFG_ARCH_LOCAL + 0x02)
+#endif
+
+#endif /* _ASM_IO_H */