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authornsouch <nsouch@FreeBSD.org>1999-01-09 18:08:24 +0000
committernsouch <nsouch@FreeBSD.org>1999-01-09 18:08:24 +0000
commite670443158fa0f8567cc666000f1cf5819c156ca (patch)
treedc9371aa53218a6e6b09f54a5dd8c837e4342de9 /sys/dev/iicbus/iiconf.h
parent674988520c88d8bdd31977e29964f169a47a72b1 (diff)
downloadFreeBSD-src-e670443158fa0f8567cc666000f1cf5819c156ca.zip
FreeBSD-src-e670443158fa0f8567cc666000f1cf5819c156ca.tar.gz
Change /dev/smb and /dev/iic interface to allow user programs to interact with
devices dynamically. That means, + only one /dev/iic or /dev/smb device for each smb/iic bus to access + I2C/SMB device address must be given to any ioctl + new devices may be plugged and accessed after boot, which was impossible previously (device addresses were hardcoded into the kernel)
Diffstat (limited to 'sys/dev/iicbus/iiconf.h')
-rw-r--r--sys/dev/iicbus/iiconf.h18
1 files changed, 9 insertions, 9 deletions
diff --git a/sys/dev/iicbus/iiconf.h b/sys/dev/iicbus/iiconf.h
index 874ecd4..0b548fb 100644
--- a/sys/dev/iicbus/iiconf.h
+++ b/sys/dev/iicbus/iiconf.h
@@ -23,7 +23,7 @@
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
- * $Id: iiconf.h,v 1.1.1.1 1998/09/03 20:51:50 nsouch Exp $
+ * $Id: iiconf.h,v 1.2 1998/10/31 11:31:07 nsouch Exp $
*/
#ifndef __IICONF_H
#define __IICONF_H
@@ -108,17 +108,17 @@ extern int iicbus_null_callback(device_t, int, caddr_t);
#define iicbus_repeated_start(bus,slave,timeout) \
(IICBUS_REPEATED_START(device_get_parent(bus), slave, timeout))
-#define iicbus_start(bus,slave,timeout) \
- (IICBUS_START(device_get_parent(bus), slave, timeout))
-#define iicbus_stop(bus) \
- (IICBUS_STOP(device_get_parent(bus)))
#define iicbus_reset(bus,speed,addr,oldaddr) \
(IICBUS_RESET(device_get_parent(bus), speed, addr, oldaddr))
-#define iicbus_write(bus,buf,len,sent,timeout) \
- (IICBUS_WRITE(device_get_parent(bus), buf, len, sent, timeout))
-#define iicbus_read(bus,buf,len,sent,last,delay) \
- (IICBUS_READ(device_get_parent(bus), buf, len, sent, last, delay))
+/* basic I2C operations */
+extern int iicbus_started(device_t);
+extern int iicbus_start(device_t, u_char, int);
+extern int iicbus_stop(device_t);
+extern int iicbus_write(device_t, char *, int, int *, int);
+extern int iicbus_read(device_t, char *, int, int *, int, int);
+
+/* Read/write operations with start/stop conditions managed */
extern int iicbus_block_write(device_t, u_char, char *, int, int *);
extern int iicbus_block_read(device_t, u_char, char *, int, int *);
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