diff options
Diffstat (limited to 'sys/dev/extres/phy/phy.c')
| -rw-r--r-- | sys/dev/extres/phy/phy.c | 235 |
1 files changed, 235 insertions, 0 deletions
diff --git a/sys/dev/extres/phy/phy.c b/sys/dev/extres/phy/phy.c new file mode 100644 index 0000000..0e2c7e1 --- /dev/null +++ b/sys/dev/extres/phy/phy.c @@ -0,0 +1,235 @@ +/*- + * Copyright 2016 Michal Meloun <mmel@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 |
