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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /drivers/w1/w1.h
downloadop-kernel-dev-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.zip
op-kernel-dev-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.tar.gz
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'drivers/w1/w1.h')
-rw-r--r--drivers/w1/w1.h145
1 files changed, 145 insertions, 0 deletions
diff --git a/drivers/w1/w1.h b/drivers/w1/w1.h
new file mode 100644
index 0000000..abbddaf
--- /dev/null
+++ b/drivers/w1/w1.h
@@ -0,0 +1,145 @@
+/*
+ * w1.h
+ *
+ * Copyright (c) 2004 Evgeniy Polyakov <johnpol@2ka.mipt.ru>
+ *
+ *
+ * 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
+ */
+
+#ifndef __W1_H
+#define __W1_H
+
+struct w1_reg_num
+{
+#if defined(__LITTLE_ENDIAN_BITFIELD)
+ __u64 family:8,
+ id:48,
+ crc:8;
+#elif defined(__BIG_ENDIAN_BITFIELD)
+ __u64 crc:8,
+ id:48,
+ family:8;
+#else
+#error "Please fix <asm/byteorder.h>"
+#endif
+};
+
+#ifdef __KERNEL__
+
+#include <linux/completion.h>
+#include <linux/device.h>
+
+#include <net/sock.h>
+
+#include <asm/semaphore.h>
+
+#include "w1_family.h"
+
+#define W1_MAXNAMELEN 32
+#define W1_SLAVE_DATA_SIZE 128
+
+#define W1_SEARCH 0xF0
+#define W1_CONDITIONAL_SEARCH 0xEC
+#define W1_CONVERT_TEMP 0x44
+#define W1_SKIP_ROM 0xCC
+#define W1_READ_SCRATCHPAD 0xBE
+#define W1_READ_ROM 0x33
+#define W1_READ_PSUPPLY 0xB4
+#define W1_MATCH_ROM 0x55
+
+#define W1_SLAVE_ACTIVE (1<<0)
+
+struct w1_slave
+{
+ struct module *owner;
+ unsigned char name[W1_MAXNAMELEN];
+ struct list_head w1_slave_entry;
+ struct w1_reg_num reg_num;
+ atomic_t refcnt;
+ u8 rom[9];
+ u32 flags;
+ int ttl;
+
+ struct w1_master *master;
+ struct w1_family *family;
+ struct device dev;
+ struct completion dev_released;
+
+ struct bin_attribute attr_bin;
+ struct device_attribute attr_name, attr_val;
+};
+
+typedef void (* w1_slave_found_callback)(unsigned long, u64);
+
+struct w1_bus_master
+{
+ unsigned long data;
+
+ u8 (*read_bit)(unsigned long);
+ void (*write_bit)(unsigned long, u8);
+
+ u8 (*read_byte)(unsigned long);
+ void (*write_byte)(unsigned long, u8);
+
+ u8 (*read_block)(unsigned long, u8 *, int);
+ void (*write_block)(unsigned long, u8 *, int);
+
+ u8 (*touch_bit)(unsigned long, u8);
+
+ u8 (*reset_bus)(unsigned long);
+
+ void (*search)(unsigned long, w1_slave_found_callback);
+};
+
+struct w1_master
+{
+ struct list_head w1_master_entry;
+ struct module *owner;
+ unsigned char name[W1_MAXNAMELEN];
+ struct list_head slist;
+ int max_slave_count, slave_count;
+ unsigned long attempts;
+ int slave_ttl;
+ int initialized;
+ u32 id;
+
+ atomic_t refcnt;
+
+ void *priv;
+ int priv_size;
+
+ int need_exit;
+ pid_t kpid;
+ struct semaphore mutex;
+
+ struct device_driver *driver;
+ struct device dev;
+ struct completion dev_released;
+ struct completion dev_exited;
+
+ struct w1_bus_master *bus_master;
+
+ u32 seq, groups;
+ struct sock *nls;
+};
+
+int w1_create_master_attributes(struct w1_master *);
+void w1_destroy_master_attributes(struct w1_master *);
+void w1_search(struct w1_master *dev);
+
+#endif /* __KERNEL__ */
+
+#endif /* __W1_H */
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