Port of ppbus standalone framework to the newbus system.

Note1: the correct interrupt level is invoked correctly for each driver.
       For this purpose, drivers request the bus before being able to
       call BUS_SETUP_INTR and BUS_TEARDOWN_INTR call is forced by the ppbus
       core when drivers release it. Thus, when BUS_SETUP_INTR is called
       at ppbus driver level, ppbus checks that the caller owns the
       bus and stores the interrupt handler cookie (in order to unregister
       it later).

       Printing is impossible while plip link is up is still TRUE.
       vpo (ZIP driver) and lpt are make in such a way that
       using the ZIP and printing concurrently is permitted is also TRUE.

Note2: specific chipset detection is not done by default. PPC_PROBE_CHIPSET
       is now needed to force chipset detection. If set, the flags 0x40
       still avoid detection at boot.

Port of the pcf(4) driver to the newbus system (was previously directly
connected to the rootbus and attached by a bogus pcf_isa_probe function).

1 files changed, 92 insertions, 0 deletions

diff --git a/sys/dev/ppbus/ppbus_if.m b/sys/dev/ppbus/ppbus_if.m
new file mode 100644
index 0000000..00af081
--- /dev/null
+++ b/sys/dev/ppbus/ppbus_if.m
@@ -0,0 +1,92 @@
+#
+# Copyright (c) 1999 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.
+#
+# $FreeBSD$
+#
+
+#include <dev/ppbus/ppbconf.h>
+
+INTERFACE ppbus;
+
+#
+# Do low level i/o operations
+#
+METHOD u_char io {
+	device_t dev;
+	int opcode;
+	u_char *addr;
+	int cnt;
+	u_char byte;
+};
+
+#
+# Execution of a microsequence
+#
+METHOD int exec_microseq {
+	device_t dev;
+	struct ppb_microseq **ppb_microseq;
+};
+
+#
+# Reset EPP timeout
+#
+METHOD int reset_epp {
+	device_t dev;
+}
+
+#
+# Set chipset mode
+#
+METHOD int setmode {
+	device_t dev;
+	int mode;
+}
+
+#
+# Synchronize ECP FIFO
+#
+METHOD int ecp_sync {
+	device_t dev;
+}
+
+#
+# Do chipset dependent low level read
+#
+METHOD int read {
+	device_t dev;
+	char *buf;
+	int len;
+	int how;
+}
+
+#
+# Do chipset dependent low level write
+#
+METHOD int write {
+	device_t dev;
+	char *buf;
+	int len;
+	int how;
+}