drm: Add via unichrome support

Add DRM device driver for VIA Unichrome chipsets

From: Unichrome Project http://unichrome.sf.net, Erdi Chen, Thomas Hellstrom    Signed-off-by: Dave Airlie <airlied@linux.ie>

1 files changed, 126 insertions, 0 deletions

diff --git a/drivers/char/drm/via_drv.c b/drivers/char/drm/via_drv.c
new file mode 100644
index 0000000..275eefc
--- /dev/null
+++ b/drivers/char/drm/via_drv.c
@@ -0,0 +1,126 @@
+/*
+ * Copyright 1998-2003 VIA Technologies, Inc. All Rights Reserved.
+ * Copyright 2001-2003 S3 Graphics, Inc. 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, sub license,
+ * 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 NON-INFRINGEMENT. IN NO EVENT SHALL
+ * VIA, S3 GRAPHICS, 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.
+ */
+
+#include <linux/config.h>
+#include "drmP.h"
+#include "via_drm.h"
+#include "via_drv.h"
+
+#include "drm_pciids.h"
+
+static int postinit(struct drm_device *dev, unsigned long flags)
+{
+	DRM_INFO("Initialized %s %d.%d.%d %s on minor %d: %s\n",
+		 DRIVER_NAME,
+		 DRIVER_MAJOR,
+		 DRIVER_MINOR,
+		 DRIVER_PATCHLEVEL,
+		 DRIVER_DATE, dev->primary.minor, pci_pretty_name(dev->pdev)
+	    );
+	return 0;
+}
+
+static int version(drm_version_t * version)
+{
+	int len;
+
+	version->version_major = DRIVER_MAJOR;
+	version->version_minor = DRIVER_MINOR;
+	version->version_patchlevel = DRIVER_PATCHLEVEL;
+	DRM_COPY(version->name, DRIVER_NAME);
+	DRM_COPY(version->date, DRIVER_DATE);
+	DRM_COPY(version->desc, DRIVER_DESC);
+	return 0;
+}
+
+static struct pci_device_id pciidlist[] = {
+	viadrv_PCI_IDS
+};
+
+static drm_ioctl_desc_t ioctls[] = {
+	[DRM_IOCTL_NR(DRM_VIA_ALLOCMEM)] = {via_mem_alloc, 1, 0},
+	[DRM_IOCTL_NR(DRM_VIA_FREEMEM)] = {via_mem_free, 1, 0},
+	[DRM_IOCTL_NR(DRM_VIA_AGP_INIT)] = {via_agp_init, 1, 0},
+	[DRM_IOCTL_NR(DRM_VIA_FB_INIT)] = {via_fb_init, 1, 0},
+	[DRM_IOCTL_NR(DRM_VIA_MAP_INIT)] = {via_map_init, 1, 0},
+	[DRM_IOCTL_NR(DRM_VIA_DEC_FUTEX)] = {via_decoder_futex, 1, 0},
+	[DRM_IOCTL_NR(DRM_VIA_DMA_INIT)] = {via_dma_init, 1, 0},
+	[DRM_IOCTL_NR(DRM_VIA_CMDBUFFER)] = {via_cmdbuffer, 1, 0},
+	[DRM_IOCTL_NR(DRM_VIA_FLUSH)] = {via_flush_ioctl, 1, 0},
+	[DRM_IOCTL_NR(DRM_VIA_PCICMD)] = {via_pci_cmdbuffer, 1, 0},
+	[DRM_IOCTL_NR(DRM_VIA_CMDBUF_SIZE)] = {via_cmdbuf_size, 1, 0},
+	[DRM_IOCTL_NR(DRM_VIA_WAIT_IRQ)] = {via_wait_irq, 1, 0}
+};
+
+static struct drm_driver driver = {
+	.driver_features =
+	    DRIVER_USE_AGP | DRIVER_USE_MTRR | DRIVER_HAVE_IRQ |
+	    DRIVER_IRQ_SHARED | DRIVER_IRQ_VBL,
+	.context_ctor = via_init_context,
+	.context_dtor = via_final_context,
+	.vblank_wait = via_driver_vblank_wait,
+	.irq_preinstall = via_driver_irq_preinstall,
+	.irq_postinstall = via_driver_irq_postinstall,
+	.irq_uninstall = via_driver_irq_uninstall,
+	.irq_handler = via_driver_irq_handler,
+	.dma_quiescent = via_driver_dma_quiescent,
+	.reclaim_buffers = drm_core_reclaim_buffers,
+	.get_map_ofs = drm_core_get_map_ofs,
+	.get_reg_ofs = drm_core_get_reg_ofs,
+	.postinit = postinit,
+	.version = version,
+	.ioctls = ioctls,
+	.num_ioctls = DRM_ARRAY_SIZE(ioctls),
+	.fops = {
+		.owner = THIS_MODULE,
+		.open = drm_open,
+		.release = drm_release,
+		.ioctl = drm_ioctl,
+		.mmap = drm_mmap,
+		.poll = drm_poll,
+		.fasync = drm_fasync,
+		},
+	.pci_driver = {
+		.name = DRIVER_NAME,
+		.id_table = pciidlist,
+	}
+};
+
+static int __init via_init(void)
+{
+	via_init_command_verifier();
+	return drm_init(&driver);
+}
+
+static void __exit via_exit(void)
+{
+	drm_exit(&driver);
+}
+
+module_init(via_init);
+module_exit(via_exit);
+
+MODULE_AUTHOR(DRIVER_AUTHOR);
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL and additional rights");