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)

4 files changed, 22 insertions, 41 deletions

diff --git a/sys/dev/smbus/smb.c b/sys/dev/smbus/smb.c
index 72c4780..1ecca51 100644
--- a/sys/dev/smbus/smb.c
+++ b/sys/dev/smbus/smb.c
@@ -23,7 +23,7 @@
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
  *
- *	$Id: smb.c,v 1.3 1998/09/09 18:57:38 nsouch Exp $
+ *	$Id: smb.c,v 1.4 1998/12/07 21:58:17 archie Exp $
  *
  */
 #include <sys/param.h>
@@ -157,24 +157,9 @@ smbclose(dev_t dev, int flags, int fmt, struct proc *p)
 static int
 smbwrite(dev_t dev, struct uio * uio, int ioflag)
 {
-	device_t smbdev = IIC_DEVICE(minor(dev));
-	struct smb_softc *sc = IIC_SOFTC(minor(dev));
-	int count;
-
-	if (!sc || !smbdev)
-		return (EINVAL);
-
-	if (sc->sc_count == 0)
-		return (EINVAL);
-
-	count = min(uio->uio_resid, BUFSIZE);
-	uiomove(sc->sc_buffer, count, uio);
-
-	/* we consider the command char as the first character to send */
-	smbus_bwrite(device_get_parent(smbdev), sc->sc_addr,
-				sc->sc_buffer[0], count-1, sc->sc_buffer+1);
+	/* not supported */
 
-	return (0);
+	return (EINVAL);
 }
 
 static int
@@ -195,65 +180,62 @@ smbioctl(dev_t dev, u_long cmd, caddr_t data, int flags, struct proc *p)
 	int error = 0;
 	struct smbcmd *s = (struct smbcmd *)data;
 
-	if (!sc)
+	if (!sc || !s)
 		return (EINVAL);
 
 	switch (cmd) {
 	case SMB_QUICK_WRITE:
-		smbus_quick(parent, sc->sc_addr, SMB_QWRITE);
+		smbus_quick(parent, s->slave, SMB_QWRITE);
 		goto end;
 
 	case SMB_QUICK_READ:
-		smbus_quick(parent, sc->sc_addr, SMB_QREAD);
+		smbus_quick(parent, s->slave, SMB_QREAD);
 		goto end;
 	};
 
-	if (!s)
-		return (EINVAL);
-
 	switch (cmd) {
 	case SMB_SENDB:
-		smbus_sendb(parent, sc->sc_addr, s->cmd);
+		smbus_sendb(parent, s->slave, s->cmd);
 		break;
 
 	case SMB_RECVB:
-		smbus_recvb(parent, sc->sc_addr, &s->cmd);
+		smbus_recvb(parent, s->slave, &s->cmd);
 		break;
 
 	case SMB_WRITEB:
-		smbus_writeb(parent, sc->sc_addr, s->cmd, s->data.byte);
+		smbus_writeb(parent, s->slave, s->cmd, s->data.byte);
 		break;
 
 	case SMB_WRITEW:
-		smbus_writew(parent, sc->sc_addr, s->cmd, s->data.word);
+		smbus_writew(parent, s->slave, s->cmd, s->data.word);
 		break;
 
 	case SMB_READB:
 		if (s->data.byte_ptr)
-			smbus_readb(parent, sc->sc_addr, s->cmd,
+			smbus_readb(parent, s->slave, s->cmd,
 							s->data.byte_ptr);
 		break;
 
 	case SMB_READW:
 		if (s->data.word_ptr)
-			smbus_readw(parent, sc->sc_addr, s->cmd, s->data.word_ptr);
+			smbus_readw(parent, s->slave, s->cmd, s->data.word_ptr);
 		break;
 
 	case SMB_PCALL:
 		if (s->data.process.rdata)
-			smbus_pcall(parent, sc->sc_addr, s->cmd,
+			smbus_pcall(parent, s->slave, s->cmd,
 				s->data.process.sdata, s->data.process.rdata);
 		break;
 
 	case SMB_BWRITE:
 		if (s->count && s->data.byte_ptr)
-			smbus_bwrite(parent, sc->sc_addr, s->cmd, s->count,
+			smbus_bwrite(parent, s->slave, s->cmd, s->count,
 							s->data.byte_ptr);
 		break;
 
 	case SMB_BREAD:
 		if (s->count && s->data.byte_ptr)
-			smbus_bread(parent, sc->sc_addr, s->cmd, s->count,
+			smbus_bread(parent, s->slave, s->cmd, s->count,
 							s->data.byte_ptr);
 		break;
 		
diff --git a/sys/dev/smbus/smb.h b/sys/dev/smbus/smb.h
index 1338a15..e0ebef8 100644
--- a/sys/dev/smbus/smb.h
+++ b/sys/dev/smbus/smb.h
@@ -23,7 +23,7 @@
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
  *
- *	$Id: smb.h,v 1.1 1998/08/13 17:13:20 son Exp $
+ *	$Id: smb.h,v 1.1 1998/09/03 21:00:08 nsouch Exp $
  *
  */
 #ifndef __SMB_H
@@ -34,6 +34,7 @@
 struct smbcmd {
 	char cmd;
 	int count;
+	u_char slave;
 	union {
 		char byte;
 		short word;
@@ -48,8 +49,8 @@ struct smbcmd {
 	} data;
 };
 
-#define SMB_QUICK_WRITE	_IO('i', 1)
-#define SMB_QUICK_READ	_IO('i', 2)
+#define SMB_QUICK_WRITE	_IOW('i', 1, struct smbcmd)
+#define SMB_QUICK_READ	_IOW('i', 2, struct smbcmd)
 #define SMB_SENDB	_IOW('i', 3, struct smbcmd)
 #define SMB_RECVB	_IOW('i', 4, struct smbcmd)
 #define SMB_WRITEB	_IOW('i', 5, struct smbcmd)
diff --git a/sys/dev/smbus/smbconf.c b/sys/dev/smbus/smbconf.c
index dbf417b..458916f 100644
--- a/sys/dev/smbus/smbconf.c
+++ b/sys/dev/smbus/smbconf.c
@@ -23,7 +23,7 @@
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
  *
- *	$Id: smbconf.c,v 1.2 1998/10/31 11:39:54 nsouch Exp $
+ *	$Id: smbconf.c,v 1.3 1998/11/22 22:01:42 nsouch Exp $
  *
  */
 #include <sys/param.h>
@@ -65,9 +65,6 @@ smbus_alloc_bus(device_t parent)
 	/* add the bus to the parent */
 	child = device_add_child(parent, "smbus", -1, NULL);
 
-	if (child)
-		device_set_desc(child, "System Management Bus");
-
 	return (child);
 }
 
diff --git a/sys/dev/smbus/smbus.c b/sys/dev/smbus/smbus.c
index 0ab21a4..ca06710 100644
--- a/sys/dev/smbus/smbus.c
+++ b/sys/dev/smbus/smbus.c
@@ -23,7 +23,7 @@
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
  *
- *	$Id: smbus.c,v 1.5 1998/12/10 02:31:08 archie Exp $
+ *	$Id: smbus.c,v 1.6 1998/12/28 19:07:51 nsouch Exp $
  *
  */
 #include <sys/param.h>
@@ -159,3 +159,4 @@ smbus_read_ivar(device_t bus, device_t dev, int index, u_long* result)
 DRIVER_MODULE(smbus, iicsmb, smbus_driver, smbus_devclass, 0, 0);
 DRIVER_MODULE(smbus, bti2c, smbus_driver, smbus_devclass, 0, 0);
 DRIVER_MODULE(smbus, intsmb, smbus_driver, smbus_devclass, 0, 0);
+DRIVER_MODULE(smbus, smbv, smbus_driver, smbus_devclass, 0, 0);