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-rw-r--r--src/solx_devfs.c137
1 files changed, 135 insertions, 2 deletions
diff --git a/src/solx_devfs.c b/src/solx_devfs.c
index 2079df0..4069dc2 100644
--- a/src/solx_devfs.c
+++ b/src/solx_devfs.c
@@ -1,6 +1,6 @@
/*
* (C) Copyright IBM Corporation 2006
- * Copyright (c) 2007, 2009, 2011, Oracle and/or its affiliates.
+ * Copyright (c) 2007, 2009, 2011, 2012, Oracle and/or its affiliates.
* All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
@@ -38,6 +38,11 @@
#include <libdevinfo.h>
#include "pci_tools.h"
+#ifdef __x86
+# include <sys/sysi86.h>
+# include <sys/psw.h>
+#endif
+
#include "pciaccess.h"
#include "pciaccess_private.h"
@@ -1122,7 +1127,125 @@ pci_device_solx_devfs_write( struct pci_device * dev, const void * data,
return (err);
}
+static struct pci_io_handle *
+pci_device_solx_devfs_open_legacy_io(struct pci_io_handle *ret,
+ struct pci_device *dev,
+ pciaddr_t base, pciaddr_t size)
+{
+#ifdef __x86
+ if (sysi86(SI86V86, V86SC_IOPL, PS_IOPL) == 0) {
+ ret->base = base;
+ ret->size = size;
+ return ret;
+ }
+#endif
+ return NULL;
+}
+
+static uint32_t
+pci_device_solx_devfs_read32(struct pci_io_handle *handle, uint32_t reg)
+{
+#ifdef __x86
+ uint16_t port = (uint16_t) (handle->base + reg);
+ uint32_t ret;
+ __asm__ __volatile__("inl %1,%0":"=a"(ret):"d"(port));
+ return ret;
+#else
+ return *(uint32_t *)((uintptr_t)handle->memory + reg);
+#endif
+}
+static uint16_t
+pci_device_solx_devfs_read16(struct pci_io_handle *handle, uint32_t reg)
+{
+#ifdef __x86
+ uint16_t port = (uint16_t) (handle->base + reg);
+ uint16_t ret;
+ __asm__ __volatile__("inw %1,%0":"=a"(ret):"d"(port));
+ return ret;
+#else
+ return *(uint16_t *)((uintptr_t)handle->memory + reg);
+#endif
+}
+
+static uint8_t
+pci_device_solx_devfs_read8(struct pci_io_handle *handle, uint32_t reg)
+{
+#ifdef __x86
+ uint16_t port = (uint16_t) (handle->base + reg);
+ uint8_t ret;
+ __asm__ __volatile__("inb %1,%0":"=a"(ret):"d"(port));
+ return ret;
+#else
+ return *(uint8_t *)((uintptr_t)handle->memory + reg);
+#endif
+}
+
+static void
+pci_device_solx_devfs_write32(struct pci_io_handle *handle, uint32_t reg,
+ uint32_t data)
+{
+#ifdef __x86
+ uint16_t port = (uint16_t) (handle->base + reg);
+ __asm__ __volatile__("outl %0,%1"::"a"(data), "d"(port));
+#else
+ *(uint16_t *)((uintptr_t)handle->memory + reg) = data;
+#endif
+}
+
+static void
+pci_device_solx_devfs_write16(struct pci_io_handle *handle, uint32_t reg,
+ uint16_t data)
+{
+#ifdef __x86
+ uint16_t port = (uint16_t) (handle->base + reg);
+ __asm__ __volatile__("outw %0,%1"::"a"(data), "d"(port));
+#else
+ *(uint8_t *)((uintptr_t)handle->memory + reg) = data;
+#endif
+}
+
+static void
+pci_device_solx_devfs_write8(struct pci_io_handle *handle, uint32_t reg,
+ uint8_t data)
+{
+#ifdef __x86
+ uint16_t port = (uint16_t) (handle->base + reg);
+ __asm__ __volatile__("outb %0,%1"::"a"(data), "d"(port));
+#else
+ *(uint32_t *)((uintptr_t)handle->memory + reg) = data;
+#endif
+}
+
+static int
+pci_device_solx_devfs_map_legacy(struct pci_device *dev, pciaddr_t base,
+ pciaddr_t size, unsigned map_flags,
+ void **addr)
+{
+ int err;
+ struct pci_device_mapping map = {
+ .base = base,
+ .size = size,
+ .flags = map_flags,
+ };
+
+ err = pci_device_solx_devfs_map_range(dev, &map);
+ if (err == 0)
+ *addr = map.memory;
+ return err;
+}
+
+static int
+pci_device_solx_devfs_unmap_legacy(struct pci_device *dev,
+ void *addr, pciaddr_t size)
+{
+ struct pci_device_mapping map = {
+ .memory = addr,
+ .size = size,
+ };
+
+ return pci_device_generic_unmap_range(dev, &map);
+}
static const struct pci_system_methods solx_devfs_methods = {
.destroy = pci_system_solx_devfs_destroy,
@@ -1135,7 +1258,17 @@ static const struct pci_system_methods solx_devfs_methods = {
.read = pci_device_solx_devfs_read,
.write = pci_device_solx_devfs_write,
- .fill_capabilities = pci_fill_capabilities_generic
+ .fill_capabilities = pci_fill_capabilities_generic,
+
+ .open_legacy_io = pci_device_solx_devfs_open_legacy_io,
+ .read32 = pci_device_solx_devfs_read32,
+ .read16 = pci_device_solx_devfs_read16,
+ .read8 = pci_device_solx_devfs_read8,
+ .write32 = pci_device_solx_devfs_write32,
+ .write16 = pci_device_solx_devfs_write16,
+ .write8 = pci_device_solx_devfs_write8,
+ .map_legacy = pci_device_solx_devfs_map_legacy,
+ .unmap_legacy = pci_device_solx_devfs_unmap_legacy,
};
/*