Author: mmel
Date: Tue Mar 15 15:31:17 2016
New Revision: 296907
URL: https://svnweb.freebsd.org/changeset/base/296907
Log:
Add phy framework, a next part of new 'extended resources' family of
support frameworks (i.e. clk/regulators/tsensors/fuses...).
It provides simple unified consumers interface for manipulations with
phy (USB/SATA/PCIe) resources.
Added:
head/sys/dev/extres/phy/
head/sys/dev/extres/phy/phy.c (contents, props changed)
head/sys/dev/extres/phy/phy.h (contents, props changed)
head/sys/dev/extres/phy/phy_if.m (contents, props changed)
Modified:
head/sys/conf/files
Modified: head/sys/conf/files
==============================================================================
--- head/sys/conf/files Tue Mar 15 15:30:17 2016 (r296906)
+++ head/sys/conf/files Tue Mar 15 15:31:17 2016 (r296907)
@@ -1418,6 +1418,8 @@ dev/extres/clk/clk_div.c optional ext_re
dev/extres/clk/clk_fixed.c optional ext_resources clk
dev/extres/clk/clk_gate.c optional ext_resources clk
dev/extres/clk/clk_mux.c optional ext_resources clk
+dev/extres/phy/phy.c optional ext_resources phy
+dev/extres/phy/phy_if.m optional ext_resources phy
dev/extres/hwreset/hwreset.c optional ext_resources hwreset
dev/extres/hwreset/hwreset_if.m optional ext_resources hwreset
dev/extres/regulator/regdev_if.m optional ext_resources regulator
Added: head/sys/dev/extres/phy/phy.c
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ head/sys/dev/extres/phy/phy.c Tue Mar 15 15:31:17 2016
(r296907)
@@ -0,0 +1,235 @@
+/*-
+ * Copyright 2016 Michal Meloun <m...@freebsd.org>
+ * 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 "opt_platform.h"
+#include <sys/cdefs.h>
+#include <sys/param.h>
+#include <sys/kernel.h>
+#include <sys/malloc.h>
+#include <sys/systm.h>
+
+#ifdef FDT
+#include <dev/ofw/ofw_bus.h>
+#include <dev/ofw/ofw_bus_subr.h>
+#endif
+
+#include <dev/extres/phy/phy.h>
+
+#include "phy_if.h"
+
+struct phy {
+ device_t consumer_dev; /* consumer device*/
+ device_t provider_dev; /* provider device*/
+ uintptr_t phy_id; /* phy id */
+};
+
+MALLOC_DEFINE(M_PHY, "phy", "Phy framework");
+
+int
+phy_init(device_t consumer, phy_t phy)
+{
+
+ return (PHY_INIT(phy->provider_dev, phy->phy_id, true));
+}
+
+int
+phy_deinit(device_t consumer, phy_t phy)
+{
+
+ return (PHY_INIT(phy->provider_dev, phy->phy_id, false));
+}
+
+
+int
+phy_enable(device_t consumer, phy_t phy)
+{
+
+ return (PHY_ENABLE(phy->provider_dev, phy->phy_id, true));
+}
+
+int
+phy_disable(device_t consumer, phy_t phy)
+{
+
+ return (PHY_ENABLE(phy->provider_dev, phy->phy_id, false));
+}
+
+int
+phy_status(device_t consumer, phy_t phy, int *value)
+{
+
+ return (PHY_STATUS(phy->provider_dev, phy->phy_id, value));
+}
+
+int
+phy_get_by_id(device_t consumer_dev, device_t provider_dev, intptr_t id,
+ phy_t *phy_out)
+{
+ phy_t phy;
+
+ /* Create handle */
+ phy = malloc(sizeof(struct phy), M_PHY,
+ M_WAITOK | M_ZERO);
+ phy->consumer_dev = consumer_dev;
+ phy->provider_dev = provider_dev;
+ phy->phy_id = id;
+ *phy_out = phy;
+ return (0);
+}
+
+void
+phy_release(phy_t phy)
+{
+ free(phy, M_PHY);
+}
+
+
+#ifdef FDT
+int phy_default_map(device_t provider, phandle_t xref, int ncells,
+ pcell_t *cells, intptr_t *id)
+{
+
+ if (ncells == 0)
+ *id = 1;
+ else if (ncells == 1)
+ *id = cells[0];
+ else
+ return (ERANGE);
+
+ return (0);
+}
+
+int
+phy_get_by_ofw_idx(device_t consumer_dev, int idx, phy_t *phy)
+{
+ phandle_t cnode, xnode;
+ pcell_t *cells;
+ device_t phydev;
+ int ncells, rv;
+ intptr_t id;
+
+ cnode = ofw_bus_get_node(consumer_dev);
+ if (cnode <= 0) {
+ device_printf(consumer_dev,
+ "%s called on not ofw based device\n", __func__);
+ return (ENXIO);
+ }
+ rv = ofw_bus_parse_xref_list_alloc(cnode, "phys", "#phy-cells", idx,
+ &xnode, &ncells, &cells);
+ if (rv != 0)
+ return (rv);
+
+ /* Tranlate provider to device. */
+ phydev = OF_device_from_xref(xnode);
+ if (phydev == NULL) {
+ free(cells, M_OFWPROP);
+ return (ENODEV);
+ }
+ /* Map phy to number. */
+ rv = PHY_MAP(phydev, xnode, ncells, cells, &id);
+ free(cells, M_OFWPROP);
+ if (rv != 0)
+ return (rv);
+
+ return (phy_get_by_id(consumer_dev, phydev, id, phy));
+}
+
+int
+phy_get_by_ofw_name(device_t consumer_dev, char *name, phy_t *phy)
+{
+ int rv, idx;
+ phandle_t cnode;
+
+ cnode = ofw_bus_get_node(consumer_dev);
+ if (cnode <= 0) {
+ device_printf(consumer_dev,
+ "%s called on not ofw based device\n", __func__);
+ return (ENXIO);
+ }
+ rv = ofw_bus_find_string_index(cnode, "phy-names", name, &idx);
+ if (rv != 0)
+ return (rv);
+ return (phy_get_by_ofw_idx(consumer_dev, idx, phy));
+}
+
+int
+phy_get_by_ofw_property(device_t consumer_dev, char *name, phy_t *phy)
+{
+ phandle_t cnode;
+ pcell_t *cells;
+ device_t phydev;
+ int ncells, rv;
+ intptr_t id;
+
+ cnode = ofw_bus_get_node(consumer_dev);
+ if (cnode <= 0) {
+ device_printf(consumer_dev,
+ "%s called on not ofw based device\n", __func__);
+ return (ENXIO);
+ }
+ ncells = OF_getencprop_alloc(cnode, name, sizeof(pcell_t),
+ (void **)&cells);
+ if (ncells < 1)
+ return (ENXIO);
+
+ /* Tranlate provider to device. */
+ phydev = OF_device_from_xref(cells[0]);
+ if (phydev == NULL) {
+ free(cells, M_OFWPROP);
+ return (ENODEV);
+ }
+ /* Map phy to number. */
+ rv = PHY_MAP(phydev, cells[0], ncells - 1 , cells + 1, &id);
+ free(cells, M_OFWPROP);
+ if (rv != 0)
+ return (rv);
+
+ return (phy_get_by_id(consumer_dev, phydev, id, phy));
+}
+
+void
+phy_register_provider(device_t provider_dev)
+{
+ phandle_t xref, node;
+
+ node = ofw_bus_get_node(provider_dev);
+ if (node <= 0)
+ panic("%s called on not ofw based device.\n", __func__);
+
+ xref = OF_xref_from_node(node);
+ OF_device_register_xref(xref, provider_dev);
+}
+
+void
+phy_unregister_provider(device_t provider_dev)
+{
+ phandle_t xref;
+
+ xref = OF_xref_from_device(provider_dev);
+ OF_device_register_xref(xref, NULL);
+}
+#endif
Added: head/sys/dev/extres/phy/phy.h
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ head/sys/dev/extres/phy/phy.h Tue Mar 15 15:31:17 2016
(r296907)
@@ -0,0 +1,63 @@
+/*-
+ * Copyright 2016 Michal Meloun <m...@freebsd.org>
+ * 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.
+ *
+ * $FreeBSD$
+ */
+
+#ifndef DEV_EXTRES_PHY_H
+#define DEV_EXTRES_PHY_H
+
+#include "opt_platform.h"
+#include <sys/types.h>
+#ifdef FDT
+#include <dev/ofw/ofw_bus.h>
+#endif
+
+typedef struct phy *phy_t;
+
+/*
+ * Provider interface
+ */
+#ifdef FDT
+void phy_register_provider(device_t provider);
+void phy_unregister_provider(device_t provider);
+#endif
+
+/*
+ * Consumer interface
+ */
+int phy_get_by_id(device_t consumer_dev, device_t provider_dev, intptr_t id,
+ phy_t *phy);
+void phy_release(phy_t phy);
+int phy_get_by_ofw_name(device_t consumer, char *name, phy_t *phy);
+int phy_get_by_ofw_idx(device_t consumer, int idx, phy_t *phy);
+int phy_get_by_ofw_property(device_t consumer, char *name, phy_t *phy);
+
+int phy_init(device_t consumer, phy_t phy);
+int phy_deinit(device_t consumer, phy_t phy);
+int phy_enable(device_t consumer, phy_t phy);
+int phy_disable(device_t consumer, phy_t phy);
+int phy_status(device_t consumer, phy_t phy, int *value);
+
+#endif /* DEV_EXTRES_PHY_H */
Added: head/sys/dev/extres/phy/phy_if.m
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ head/sys/dev/extres/phy/phy_if.m Tue Mar 15 15:31:17 2016
(r296907)
@@ -0,0 +1,84 @@
+#-
+# Copyright 2016 Michal Meloun <m...@freebsd.org>
+# 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.
+#
+# $FreeBSD$
+#
+
+#ifdef FDT
+#include <sys/types.h>
+#include <dev/ofw/ofw_bus.h>
+#endif
+
+INTERFACE phy;
+
+#ifdef FDT
+HEADER {
+int phy_default_map(device_t , phandle_t, int, pcell_t *, intptr_t *);
+}
+
+#
+# map fdt property cells to phy number
+# Returns 0 on success or a standard errno value.
+#
+METHOD int map {
+ device_t provider_dev;
+ phandle_t xref;
+ int ncells;
+ pcell_t *cells;
+ intptr_t *id;
+} DEFAULT phy_default_map;
+#endif
+
+#
+# Init/deinit phy
+# Returns 0 on success or a standard errno value.
+#
+METHOD int init {
+ device_t provider_dev;
+ intptr_t id;
+ bool inti;
+};
+
+#
+# Enable/disable phy
+# Returns 0 on success or a standard errno value.
+#
+METHOD int enable {
+ device_t provider_dev;
+ intptr_t id;
+ bool enable;
+};
+
+#
+# Get phy status
+# Returns 0 on success or a standard errno value.
+#
+METHOD int status {
+ device_t provider_dev;
+ intptr_t id;
+ int *status; /* PHY_STATUS_* */
+};
+
+
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