1 files changed, 91 insertions, 0 deletions
diff --git a/shared-core/radeon_ms_rom.c b/shared-core/radeon_ms_rom.c
new file mode 100644
index 00000000..b4db02be
--- /dev/null
+++ b/shared-core/radeon_ms_rom.c
@@ -0,0 +1,91 @@
+/*
+ * Copyright 2007 Jérôme Glisse
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+/*
+ * Authors:
+ *    Jerome Glisse <glisse@freedesktop.org>
+ */
+#include "radeon_ms.h"
+
+int radeon_ms_rom_get_properties(struct drm_device *dev)
+{
+	struct drm_radeon_private *dev_priv = dev->dev_private;
+
+	switch (dev_priv->rom.type) {
+	case ROM_COMBIOS:
+		return radeon_ms_combios_get_properties(dev);
+	}
+	return 0;
+}
+
+int radeon_ms_rom_init(struct drm_device *dev)
+{
+	struct drm_radeon_private *dev_priv = dev->dev_private;
+	struct radeon_ms_rom *rom = &dev_priv->rom;
+	void *rom_mapped;
+	char atomstr[5] = {0, 0, 0, 0, 0};
+	uint16_t *offset;
+
+	dev_priv->rom.type = ROM_UNKNOWN;
+	/* copy rom if any */
+	rom_mapped = pci_map_rom(dev->pdev, &rom->rom_size);
+	if (rom_mapped && rom->rom_size) {
+		rom->rom_image = drm_alloc(rom->rom_size, DRM_MEM_DRIVER);
+		if (rom->rom_image == NULL) {
+			return -1;
+		}
+		memcpy(rom->rom_image, rom_mapped, rom->rom_size);
+		DRM_INFO("[radeon_ms] ROM %d bytes copied\n", rom->rom_size);
+	} else {
+		DRM_INFO("[radeon_ms] no ROM\n");
+		return 0;
+	}
+	pci_unmap_rom(dev->pdev, rom_mapped);
+
+	if (rom->rom_image[0] != 0x55 || rom->rom_image[1] != 0xaa) {
+		DRM_INFO("[radeon_ms] no ROM\n");
+		DRM_INFO("[radeon_ms] ROM signature 0x55 0xaa missing\n");
+		return 0;
+	}
+	offset = (uint16_t *)&rom->rom_image[ROM_HEADER];
+	memcpy(atomstr, &rom->rom_image[*offset + 4], 4);
+	if (!strcpy(atomstr, "ATOM") || !strcpy(atomstr, "MOTA")) {
+		DRM_INFO("[radeon_ms] ATOMBIOS ROM detected\n");
+		return 0;
+	} else {
+		struct combios_header **header;
+		
+		header = &rom->rom.combios_header;
+		if ((*offset + sizeof(struct combios_header)) > rom->rom_size) {
+			DRM_INFO("[radeon_ms] wrong COMBIOS header offset\n");
+			return -1;
+		}
+		dev_priv->rom.type = ROM_COMBIOS;
+		*header = (struct combios_header *)&rom->rom_image[*offset];
+		DRM_INFO("[radeon_ms] COMBIOS type  : %d\n",
+		         (*header)->ucTypeDefinition);
+		DRM_INFO("[radeon_ms] COMBIOS  OEM ID: %02x %02x\n",
+		         (*header)->ucOemID1, (*header)->ucOemID2);
+	}
+	return 0;
+}