[MIPS] Support for the RM9000-based Basler eXcite smart camera platform.

Signed-off-by: Thomas Koeller <thomas.koeller@baslerweb.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

1 files changed, 81 insertions, 0 deletions

diff --git a/arch/mips/basler/excite/excite_procfs.c b/arch/mips/basler/excite/excite_procfs.c
new file mode 100644
index 000000000000..c62be0341fb8
--- /dev/null
+++ b/arch/mips/basler/excite/excite_procfs.c
@@ -0,0 +1,81 @@
+/*
+ *  Copyright (C) 2004, 2005 by Basler Vision Technologies AG
+ *  Author: Thomas Koeller <thomas.koeller@baslerweb.com>
+ *
+ *  Procfs support for Basler eXcite
+ *
+ *  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 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; 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
+ */
+
+#include <linux/config.h>
+#include <linux/proc_fs.h>
+#include <linux/stat.h>
+#include <asm/page.h>
+#include <asm/io.h>
+#include <asm/system.h>
+#include <asm/rm9k-ocd.h>
+
+#include <excite.h>
+
+static int excite_get_unit_id(char *buf, char **addr, off_t offs, int size)
+{
+	const int len = snprintf(buf, PAGE_SIZE, "%06x", unit_id);
+	const int w = len - offs;
+	*addr = buf + offs;
+	return w < size ? w : size;
+}
+
+static int
+excite_bootrom_read(char *page, char **start, off_t off, int count,
+		  int *eof, void *data)
+{
+	void __iomem * src;
+
+	if (off >= EXCITE_SIZE_BOOTROM) {
+		*eof = 1;
+		return 0;
+	}
+
+	if ((off + count) > EXCITE_SIZE_BOOTROM)
+		count = EXCITE_SIZE_BOOTROM - off;
+
+	src = ioremap(EXCITE_PHYS_BOOTROM + off, count);
+	if (src) {
+		memcpy_fromio(page, src, count);
+		iounmap(src);
+		*start = page;
+	} else {
+		count = -ENOMEM;
+	}
+
+	return count;
+}
+
+void excite_procfs_init(void)
+{
+	/* Create & populate /proc/excite */
+	struct proc_dir_entry * const pdir = proc_mkdir("excite", &proc_root);
+	if (pdir) {
+		struct proc_dir_entry * e;
+
+		e = create_proc_info_entry("unit_id", S_IRUGO, pdir,
+					   excite_get_unit_id);
+		if (e) e->size = 6;
+
+		e = create_proc_read_entry("bootrom", S_IRUGO, pdir,
+					   excite_bootrom_read, NULL);
+		if (e) e->size = EXCITE_SIZE_BOOTROM;
+	}
+}