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-rw-r--r--src/freebsd_pci.c146
1 files changed, 146 insertions, 0 deletions
diff --git a/src/freebsd_pci.c b/src/freebsd_pci.c
index cc50e91..14ec3bc 100644
--- a/src/freebsd_pci.c
+++ b/src/freebsd_pci.c
@@ -1,6 +1,8 @@
/*
* (C) Copyright Eric Anholt 2006
* (C) Copyright IBM Corporation 2006
+ * (C) Copyright Mark Kettenis 2011
+ * (C) Copyright Robert Millan 2012
* All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
@@ -561,6 +563,138 @@ pci_system_freebsd_destroy(void)
freebsd_pci_sys = NULL;
}
+#if defined(__i386__) || defined(__amd64__)
+#include <machine/cpufunc.h>
+#endif
+
+static struct pci_io_handle *
+pci_device_freebsd_open_legacy_io(struct pci_io_handle *ret,
+ struct pci_device *dev, pciaddr_t base, pciaddr_t size)
+{
+#if defined(__i386__) || defined(__amd64__)
+ ret->fd = open("/dev/io", O_RDWR | O_CLOEXEC);
+
+ if (ret->fd < 0)
+ return NULL;
+
+ ret->base = base;
+ ret->size = size;
+ return ret;
+#elif defined(PCI_MAGIC_IO_RANGE)
+ ret->memory = mmap(NULL, size, PROT_READ | PROT_WRITE, MAP_SHARED,
+ aperturefd, PCI_MAGIC_IO_RANGE + base);
+ if (ret->memory == MAP_FAILED)
+ return NULL;
+
+ ret->base = base;
+ ret->size = size;
+ return ret;
+#else
+ return NULL;
+#endif
+}
+
+#if defined(__i386__) || defined(__amd64__)
+static void
+pci_device_freebsd_close_io(struct pci_device *dev, struct pci_io_handle *handle)
+{
+ if (handle->fd > -1)
+ close(handle->fd);
+}
+#endif
+
+static uint32_t
+pci_device_freebsd_read32(struct pci_io_handle *handle, uint32_t reg)
+{
+#if defined(__i386__) || defined(__amd64__)
+ return inl(handle->base + reg);
+#else
+ return *(uint32_t *)((uintptr_t)handle->memory + reg);
+#endif
+}
+
+static uint16_t
+pci_device_freebsd_read16(struct pci_io_handle *handle, uint32_t reg)
+{
+#if defined(__i386__) || defined(__amd64__)
+ return inw(handle->base + reg);
+#else
+ return *(uint16_t *)((uintptr_t)handle->memory + reg);
+#endif
+}
+
+static uint8_t
+pci_device_freebsd_read8(struct pci_io_handle *handle, uint32_t reg)
+{
+#if defined(__i386__) || defined(__amd64__)
+ return inb(handle->base + reg);
+#else
+ return *(uint8_t *)((uintptr_t)handle->memory + reg);
+#endif
+}
+
+static void
+pci_device_freebsd_write32(struct pci_io_handle *handle, uint32_t reg,
+ uint32_t data)
+{
+#if defined(__i386__) || defined(__amd64__)
+ outl(handle->base + reg, data);
+#else
+ *(uint16_t *)((uintptr_t)handle->memory + reg) = data;
+#endif
+}
+
+static void
+pci_device_freebsd_write16(struct pci_io_handle *handle, uint32_t reg,
+ uint16_t data)
+{
+#if defined(__i386__) || defined(__amd64__)
+ outw(handle->base + reg, data);
+#else
+ *(uint8_t *)((uintptr_t)handle->memory + reg) = data;
+#endif
+}
+
+static void
+pci_device_freebsd_write8(struct pci_io_handle *handle, uint32_t reg,
+ uint8_t data)
+{
+#if defined(__i386__) || defined(__amd64__)
+ outb(handle->base + reg, data);
+#else
+ *(uint32_t *)((uintptr_t)handle->memory + reg) = data;
+#endif
+}
+
+static int
+pci_device_freebsd_map_legacy(struct pci_device *dev, pciaddr_t base,
+ pciaddr_t size, unsigned map_flags, void **addr)
+{
+ struct pci_device_mapping map;
+ int err;
+
+ map.base = base;
+ map.size = size;
+ map.flags = map_flags;
+ map.memory = NULL;
+ err = pci_device_freebsd_map_range(dev, &map);
+ *addr = map.memory;
+
+ return err;
+}
+
+static int
+pci_device_freebsd_unmap_legacy(struct pci_device *dev, void *addr,
+ pciaddr_t size)
+{
+ struct pci_device_mapping map;
+
+ map.memory = addr;
+ map.size = size;
+ map.flags = 0;
+ return pci_device_freebsd_unmap_range(dev, &map);
+}
+
static const struct pci_system_methods freebsd_pci_methods = {
.destroy = pci_system_freebsd_destroy,
.destroy_device = NULL, /* nothing to do for this */
@@ -571,6 +705,18 @@ static const struct pci_system_methods freebsd_pci_methods = {
.read = pci_device_freebsd_read,
.write = pci_device_freebsd_write,
.fill_capabilities = pci_fill_capabilities_generic,
+ .open_legacy_io = pci_device_freebsd_open_legacy_io,
+#if defined(__i386__) || defined(__amd64__)
+ .close_io = pci_device_freebsd_close_io,
+#endif
+ .read32 = pci_device_freebsd_read32,
+ .read16 = pci_device_freebsd_read16,
+ .read8 = pci_device_freebsd_read8,
+ .write32 = pci_device_freebsd_write32,
+ .write16 = pci_device_freebsd_write16,
+ .write8 = pci_device_freebsd_write8,
+ .map_legacy = pci_device_freebsd_map_legacy,
+ .unmap_legacy = pci_device_freebsd_unmap_legacy,
};
/**