Submitted by: nsouch

Philips I2C bus generic support other new bus architecture.

1 files changed, 115 insertions, 0 deletions

diff --git a/sys/dev/iicbus/iiconf.h b/sys/dev/iicbus/iiconf.h
new file mode 100644
index 0000000..9bf0ed3
--- /dev/null
+++ b/sys/dev/iicbus/iiconf.h
@@ -0,0 +1,115 @@
+/*-
+ * Copyright (c) 1998 Nicolas Souchu
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	$Id: iiconf.h,v 1.1.1.10 1998/08/13 17:10:43 son Exp $
+ */
+#ifndef __IICONF_H
+#define __IICONF_H
+
+#include <sys/queue.h>
+
+#define IICPRI PZERO+8			/* XXX sleep/wakeup queue priority */
+
+#define n(flags) (~(flags) & (flags))
+
+#define LSB 0x1
+
+/*
+ * How tsleep() is called in iic_request_bus().
+ */
+#define IIC_DONTWAIT	0
+#define IIC_NOINTR	0
+#define IIC_WAIT	0x1
+#define IIC_INTR	0x2
+
+/*
+ * i2c modes
+ */
+#define IIC_MASTER	0x1
+#define IIC_SLAVE	0x2
+#define IIC_POLLED	0x4
+
+/*
+ * i2c speed
+ */
+#define IIC_UNKNOWN	0x0
+#define IIC_SLOW	0x1
+#define IIC_FAST	0x2
+#define IIC_FASTEST	0x3
+
+/*
+ * interrupt events
+ */
+#define INTR_GENERAL	0x1	/* general call received */
+#define INTR_START	0x2	/* the I2C interface is addressed */
+#define INTR_STOP	0x3	/* stop condition received */
+#define INTR_RECEIVE	0x4	/* character received */
+#define INTR_TRANSMIT	0x5	/* character to transmit */
+#define INTR_ERROR	0x6	/* error */
+#define INTR_NOACK	0x7	/* no ack from master receiver */
+
+/*
+ * adapter layer errors
+ */
+#define IIC_NOERR	0x0	/* no error occured */
+#define IIC_EBUSERR	0x1	/* bus error */
+#define IIC_ENOACK	0x2	/* ack not received until timeout */
+#define IIC_ETIMEOUT	0x3	/* timeout */
+#define IIC_EBUSBSY	0x4	/* bus busy */
+#define IIC_ESTATUS	0x5	/* status error */
+#define IIC_EUNDERFLOW	0x6	/* slave ready for more data */
+#define IIC_EOVERFLOW	0x7	/* too much data */
+
+/*
+ * ivars codes
+ */
+#define IICBUS_IVAR_ADDR	0x1	/* I2C address of the device */
+
+extern int iicbus_request_bus(device_t, device_t, int);
+extern int iicbus_release_bus(device_t, device_t);
+extern device_t iicbus_alloc_bus(device_t);
+
+extern void iicbus_intr(device_t, int, char *);
+
+#define iicbus_repeated_start(bus,slave) \
+	(IICBUS_REPEATED_START(device_get_parent(bus), slave))
+#define iicbus_start(bus,slave) \
+	(IICBUS_START(device_get_parent(bus), slave))
+#define iicbus_stop(bus) \
+	(IICBUS_STOP(device_get_parent(bus)))
+#define iicbus_reset(bus,speed) \
+	(IICBUS_RESET(device_get_parent(bus), speed))
+#define iicbus_write(bus,buf,len,sent) \
+	(IICBUS_WRITE(device_get_parent(bus), buf, len, sent))
+#define iicbus_read(bus,buf,len,sent) \
+	(IICBUS_READ(device_get_parent(bus), buf, len, sent))
+
+extern int iicbus_block_write(device_t, u_char, char *, int, int *);
+extern int iicbus_block_read(device_t, u_char, char *, int, int *);
+
+extern u_char iicbus_get_addr(device_t);
+extern u_char iicbus_get_own_address(device_t);
+
+#endif