diff options
author | Ralf Baechle <ralf@linux-mips.org> | 2006-06-18 16:39:46 +0100 |
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committer | Ralf Baechle <ralf@linux-mips.org> | 2006-06-19 17:39:26 +0100 |
commit | 35189fad3cb5f6e3ab66c8321928a851de0cd2b1 (patch) | |
tree | 70dcd11a08d964da9ee27bc716b2205f250b42dd /arch/mips/basler/excite/excite_procfs.c | |
parent | 355c471f2ff324c21f8a1fb8e2e242a0f2a4aa68 (diff) |
[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>
Diffstat (limited to 'arch/mips/basler/excite/excite_procfs.c')
-rw-r--r-- | arch/mips/basler/excite/excite_procfs.c | 81 |
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; + } +} |