Rewrite of puc(4). Significant changes are:

o  Properly use rman(9) to manage resources. This eliminates the
   need to puc-specific hacks to rman. It also allows devinfo(8)
   to be used to find out the specific assignment of resources to
   serial/parallel ports.
o  Compress the PCI device "database" by optimizing for the common
   case and to use a procedural interface to handle the exceptions.
   The procedural interface also generalizes the need to setup the
   hardware (program chipsets, program clock frequencies).
o  Eliminate the need for PUC_FASTINTR. Serdev devices are fast by
   default and non-serdev devices are handled by the bus.
o  Use the serdev I/F to collect interrupt status and to handle
   interrupts across ports in priority order.
o  Sync the PCI device configuration to include devices found in
   NetBSD and not yet merged to FreeBSD.
o  Add support for Quatech 2, 4 and 8 port UARTs.
o  Add support for a couple dozen Timedia serial cards as found
   in Linux.

1 files changed, 175 insertions, 0 deletions

diff --git a/sys/dev/puc/puc_cfg.c b/sys/dev/puc/puc_cfg.c
new file mode 100644
index 0000000..13db186
--- /dev/null
+++ b/sys/dev/puc/puc_cfg.c
@@ -0,0 +1,175 @@
+/*-
+ * Copyright (c) 2006 Marcel Moolenaar
+ * 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 ``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 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.
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/bus.h>
+#include <sys/rman.h>
+
+#include <dev/puc/puc_bfe.h>
+#include <dev/puc/puc_bus.h>
+#include <dev/puc/puc_cfg.h>
+
+int
+puc_config(struct puc_softc *sc, enum puc_cfg_cmd cmd, int port, intptr_t *r)
+{
+	const struct puc_cfg *cfg = sc->sc_cfg;
+	int error;
+
+	if (cfg->config_function != NULL) {
+		error = cfg->config_function(sc, cmd, port, r);
+		if (!error)
+			return (0);
+	} else
+		error = EDOOFUS;
+
+	switch (cmd) {
+	case PUC_CFG_GET_CLOCK:
+		if (cfg->clock < 0)
+			return (error);
+		*r = cfg->clock;
+		return (0);
+	case PUC_CFG_GET_DESC:
+		if (cfg->desc == NULL)
+			return (error);
+		*r = (intptr_t)cfg->desc;
+		return (0);
+	case PUC_CFG_GET_ILR:
+		*r = PUC_ILR_NONE;
+		return (0);
+	case PUC_CFG_GET_LEN:
+		/* The length of bus space needed by the port. */
+		*r = 8;
+		return (0);
+	case PUC_CFG_GET_NPORTS:
+		/* The number of ports on this card. */
+		switch (cfg->ports) {
+		case PUC_PORT_NONSTANDARD:
+			return (error);
+		case PUC_PORT_1P:
+		case PUC_PORT_1S:
+			*r = 1;
+			return (0);
+		case PUC_PORT_1S1P:
+		case PUC_PORT_2P:
+		case PUC_PORT_2S:
+			*r = 2;
+			return (0);
+		case PUC_PORT_1S2P:
+		case PUC_PORT_2S1P:
+		case PUC_PORT_3S:
+			*r = 3;
+			return (0);
+		case PUC_PORT_4S:
+			*r = 4;
+			return (0);
+		case PUC_PORT_4S1P:
+			*r = 5;
+			return (0);
+		case PUC_PORT_6S:
+			*r = 6;
+			return (0);
+		case PUC_PORT_8S:
+			*r = 8;
+			return (0);
+		case PUC_PORT_12S:
+			*r = 12;
+			return (0);
+		case PUC_PORT_16S:
+			*r = 16;
+			return (0);
+		}
+		break;
+	case PUC_CFG_GET_OFS:
+		/* The offset relative to the RID. */
+		if (cfg->d_ofs < 0)
+			return (error);
+		*r = port * cfg->d_ofs;
+		return (0);
+	case PUC_CFG_GET_RID:
+		/* The RID for this port. */
+		if (port == 0) {
+			if (cfg->rid < 0)
+				return (error);
+			*r = cfg->rid;
+			return (0);
+		}
+		if (cfg->d_rid < 0)
+			return (error);
+		if (cfg->rid < 0) {
+			error = puc_config(sc, PUC_CFG_GET_RID, 0, r);
+			if (error)
+				return (error);
+		} else
+			*r = cfg->rid;
+		*r += port * cfg->d_rid;
+		return (0);
+	case PUC_CFG_GET_TYPE:
+		/* The type of this port. */
+		if (cfg->ports == PUC_PORT_NONSTANDARD)
+			return (error);
+		switch (port) {
+		case 0:
+			if (cfg->ports == PUC_PORT_1P ||
+			    cfg->ports == PUC_PORT_2P)
+				*r = PUC_TYPE_PARALLEL;
+			else
+				*r = PUC_TYPE_SERIAL;
+			return (0);
+		case 1:
+			if (cfg->ports == PUC_PORT_1S1P ||
+			    cfg->ports == PUC_PORT_1S2P ||
+			    cfg->ports == PUC_PORT_2P)
+				*r = PUC_TYPE_PARALLEL;
+			else
+				*r = PUC_TYPE_SERIAL;
+			return (0);
+		case 2:
+			if (cfg->ports == PUC_PORT_1S2P ||
+			    cfg->ports == PUC_PORT_2S1P)
+				*r = PUC_TYPE_PARALLEL;
+			else
+				*r = PUC_TYPE_SERIAL;
+			return (0);
+		case 4:
+			if (cfg->ports == PUC_PORT_4S1P)
+				*r = PUC_TYPE_PARALLEL;
+			else
+				*r = PUC_TYPE_SERIAL;
+			return (0);
+		}
+		*r = PUC_TYPE_SERIAL;
+		return (0);
+	case PUC_CFG_SETUP:
+		*r = ENXIO;
+		return (0);
+	}
+
+	return (ENXIO);
+}