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path: root/drivers/video/fbdev/via/via_aux_vt1632.c
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Diffstat (limited to 'drivers/video/fbdev/via/via_aux_vt1632.c')
-rw-r--r--drivers/video/fbdev/via/via_aux_vt1632.c54
1 files changed, 54 insertions, 0 deletions
diff --git a/drivers/video/fbdev/via/via_aux_vt1632.c b/drivers/video/fbdev/via/via_aux_vt1632.c
new file mode 100644
index 000000000000..d24f4cd97401
--- /dev/null
+++ b/drivers/video/fbdev/via/via_aux_vt1632.c
@@ -0,0 +1,54 @@
+/*
+ * Copyright 2011 Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public
+ * License as published by the Free Software Foundation;
+ * either version 2, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTIES OR REPRESENTATIONS; without even
+ * the implied warranty of MERCHANTABILITY or FITNESS FOR
+ * A PARTICULAR PURPOSE.See the GNU General Public License
+ * for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc.,
+ * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+/*
+ * driver for VIA VT1632 DVI Transmitter
+ */
+
+#include <linux/slab.h>
+#include "via_aux.h"
+
+
+static const char *name = "VT1632 DVI Transmitter";
+
+
+static void probe(struct via_aux_bus *bus, u8 addr)
+{
+ struct via_aux_drv drv = {
+ .bus = bus,
+ .addr = addr,
+ .name = name};
+ /* check vendor id and device id */
+ const u8 id[] = {0x06, 0x11, 0x92, 0x31}, len = ARRAY_SIZE(id);
+ u8 tmp[len];
+
+ if (!via_aux_read(&drv, 0x00, tmp, len) || memcmp(id, tmp, len))
+ return;
+
+ printk(KERN_INFO "viafb: Found %s at address 0x%x\n", name, addr);
+ via_aux_add(&drv);
+}
+
+void via_aux_vt1632_probe(struct via_aux_bus *bus)
+{
+ u8 i;
+
+ for (i = 0x08; i <= 0x0F; i++)
+ probe(bus, i);
+}