diff options
Diffstat (limited to 'bsd_eth_drivers/if_le/lebuffer_sbus.c')
| -rw-r--r-- | bsd_eth_drivers/if_le/lebuffer_sbus.c | 300 |
1 files changed, 300 insertions, 0 deletions
diff --git a/bsd_eth_drivers/if_le/lebuffer_sbus.c b/bsd_eth_drivers/if_le/lebuffer_sbus.c new file mode 100644 index 0000000..b9414f2 --- /dev/null +++ b/bsd_eth_drivers/if_le/lebuffer_sbus.c @@ -0,0 +1,300 @@ +/*- + * Copyright (c) 2006 Marius Strobl <marius@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. + */ + +#include <sys/cdefs.h> +__FBSDID("$FreeBSD: src/sys/dev/le/lebuffer_sbus.c,v 1.1 2007/01/20 12:53:30 marius Exp $"); + +#include <sys/param.h> +#include <sys/systm.h> +#include <sys/bus.h> +#include <sys/kernel.h> +#include <sys/module.h> +#include <sys/resource.h> +#include <sys/rman.h> + +#include <dev/ofw/ofw_bus.h> +#include <dev/ofw/ofw_bus_subr.h> +#include <dev/ofw/openfirm.h> + +#include <machine/bus.h> +#include <machine/bus_common.h> +#include <machine/resource.h> + +#include <sparc64/sbus/ofw_sbus.h> +#include <sparc64/sbus/sbusreg.h> +#include <sparc64/sbus/sbusvar.h> + +struct lebuffer_devinfo { + struct ofw_bus_devinfo ldi_obdinfo; + struct resource_list ldi_rl; +}; + +static devclass_t lebuffer_devclass; + +static device_probe_t lebuffer_probe; +static device_attach_t lebuffer_attach; +static device_detach_t lebuffer_detach; +static bus_print_child_t lebuffer_print_child; +static bus_probe_nomatch_t lebuffer_probe_nomatch; +static bus_get_resource_list_t lebuffer_get_resource_list; +static ofw_bus_get_devinfo_t lebuffer_get_devinfo; + +static struct lebuffer_devinfo *lebuffer_setup_dinfo(device_t, phandle_t); +static void lebuffer_destroy_dinfo(struct lebuffer_devinfo *); +static int lebuffer_print_res(struct lebuffer_devinfo *); + +static device_method_t lebuffer_methods[] = { + /* Device interface */ + DEVMETHOD(device_probe, lebuffer_probe), + DEVMETHOD(device_attach, lebuffer_attach), + DEVMETHOD(device_detach, lebuffer_detach), + DEVMETHOD(device_shutdown, bus_generic_shutdown), + DEVMETHOD(device_suspend, bus_generic_suspend), + DEVMETHOD(device_resume, bus_generic_resume), + + /* Bus interface */ + DEVMETHOD(bus_print_child, lebuffer_print_child), + DEVMETHOD(bus_probe_nomatch, lebuffer_probe_nomatch), + DEVMETHOD(bus_setup_intr, bus_generic_setup_intr), + DEVMETHOD(bus_teardown_intr, bus_generic_teardown_intr), + DEVMETHOD(bus_alloc_resource, bus_generic_rl_alloc_resource), + DEVMETHOD(bus_release_resource, bus_generic_rl_release_resource), + DEVMETHOD(bus_activate_resource, bus_generic_activate_resource), + DEVMETHOD(bus_deactivate_resource, bus_generic_deactivate_resource), + DEVMETHOD(bus_get_resource_list, lebuffer_get_resource_list), + DEVMETHOD(bus_get_resource, bus_generic_rl_get_resource), + + /* ofw_bus interface */ + DEVMETHOD(ofw_bus_get_devinfo, lebuffer_get_devinfo), + DEVMETHOD(ofw_bus_get_compat, ofw_bus_gen_get_compat), + DEVMETHOD(ofw_bus_get_model, ofw_bus_gen_get_model), + DEVMETHOD(ofw_bus_get_name, ofw_bus_gen_get_name), + DEVMETHOD(ofw_bus_get_node, ofw_bus_gen_get_node), + DEVMETHOD(ofw_bus_get_type, ofw_bus_gen_get_type), + + { 0, 0 } +}; + +DEFINE_CLASS_0(lebuffer, lebuffer_driver, lebuffer_methods, 1); +DRIVER_MODULE(lebuffer, sbus, lebuffer_driver, lebuffer_devclass, 0, 0); + +static int +lebuffer_probe(device_t dev) +{ + const char *name; + + name = ofw_bus_get_name(dev); + if (strcmp(name, "lebuffer") == 0) { + device_set_desc_copy(dev, name); + return (0); + } + return (ENXIO); +} + +static int +lebuffer_attach(device_t dev) +{ + struct lebuffer_devinfo *ldi; + device_t cdev; + phandle_t child; + int children; + + children = 0; + for (child = OF_child(ofw_bus_get_node(dev)); child != 0; + child = OF_peer(child)) { + if ((ldi = lebuffer_setup_dinfo(dev, child)) == NULL) + continue; + if (children != 0) { + device_printf(dev, + "<%s>: only one child per buffer supported\n", + ldi->ldi_obdinfo.obd_name); + lebuffer_destroy_dinfo(ldi); + continue; + } + if ((cdev = device_add_child(dev, NULL, -1)) == NULL) { + device_printf(dev, "<%s>: device_add_child failed\n", + ldi->ldi_obdinfo.obd_name); + lebuffer_destroy_dinfo(ldi); + continue; + } + device_set_ivars(cdev, ldi); + children++; + } + return (bus_generic_attach(dev)); +} + +static int +lebuffer_detach(device_t dev) +{ + device_t *children; + int i, nchildren; + + bus_generic_detach(dev); + if (device_get_children(dev, &children, &nchildren) == 0) { + for (i = 0; i < nchildren; i++) { + lebuffer_destroy_dinfo(device_get_ivars(children[i])); + device_delete_child(dev, children[i]); + } + free(children, M_TEMP); + } + return (0); +} + +static struct lebuffer_devinfo * +lebuffer_setup_dinfo(device_t dev, phandle_t node) +{ + struct lebuffer_devinfo *ldi; + struct sbus_regs *reg; + uint32_t base, iv, *intr; + int i, nreg, nintr, slot, rslot; + + ldi = malloc(sizeof(*ldi), M_DEVBUF, M_WAITOK | M_ZERO); + if (ofw_bus_gen_setup_devinfo(&ldi->ldi_obdinfo, node) != 0) { + free(ldi, M_DEVBUF); + return (NULL); + } + resource_list_init(&ldi->ldi_rl); + slot = -1; + nreg = OF_getprop_alloc(node, "reg", sizeof(*reg), (void **)®); + if (nreg == -1) { + device_printf(dev, "<%s>: incomplete\n", + ldi->ldi_obdinfo.obd_name); + goto fail; + } + for (i = 0; i < nreg; i++) { + base = reg[i].sbr_offset; + if (SBUS_ABS(base)) { + rslot = SBUS_ABS_TO_SLOT(base); + base = SBUS_ABS_TO_OFFSET(base); + } else + rslot = reg[i].sbr_slot; + if (slot != -1 && slot != rslot) { + device_printf(dev, "<%s>: multiple slots\n", + ldi->ldi_obdinfo.obd_name); + free(reg, M_OFWPROP); + goto fail; + } + slot = rslot; + + resource_list_add(&ldi->ldi_rl, SYS_RES_MEMORY, i, base, + base + reg[i].sbr_size, reg[i].sbr_size); + } + free(reg, M_OFWPROP); + if (slot != sbus_get_slot(dev)) { + device_printf(dev, "<%s>: parent and child slot do not match\n", + ldi->ldi_obdinfo.obd_name); + goto fail; + } + + /* + * The `interrupts' property contains the SBus interrupt level. + */ + nintr = OF_getprop_alloc(node, "interrupts", sizeof(*intr), + (void **)&intr); + if (nintr != -1) { + for (i = 0; i < nintr; i++) { + iv = intr[i]; + /* + * SBus card devices need the slot number encoded into + * the vector as this is generally not done. + */ + if ((iv & INTMAP_OBIO_MASK) == 0) + iv |= slot << 3; + /* Set the IGN as appropriate. */ + iv |= sbus_get_ign(dev) << INTMAP_IGN_SHIFT; + resource_list_add(&ldi->ldi_rl, SYS_RES_IRQ, i, + iv, iv, 1); + } + free(intr, M_OFWPROP); + } + return (ldi); + + fail: + lebuffer_destroy_dinfo(ldi); + return (NULL); +} + +static void +lebuffer_destroy_dinfo(struct lebuffer_devinfo *dinfo) +{ + + resource_list_free(&dinfo->ldi_rl); + ofw_bus_gen_destroy_devinfo(&dinfo->ldi_obdinfo); + free(dinfo, M_DEVBUF); +} + +static int +lebuffer_print_child(device_t dev, device_t child) +{ + int rv; + + rv = bus_print_child_header(dev, child); + rv += lebuffer_print_res(device_get_ivars(child)); + rv += bus_print_child_footer(dev, child); + return (rv); +} + +static void +lebuffer_probe_nomatch(device_t dev, device_t child) +{ + const char *type; + + device_printf(dev, "<%s>", ofw_bus_get_name(child)); + lebuffer_print_res(device_get_ivars(child)); + type = ofw_bus_get_type(child); + printf(" type %s (no driver attached)\n", + type != NULL ? type : "unknown"); +} + +static struct resource_list * +lebuffer_get_resource_list(device_t dev, device_t child) +{ + struct lebuffer_devinfo *ldi; + + ldi = device_get_ivars(child); + return (&ldi->ldi_rl); +} + +static const struct ofw_bus_devinfo * +lebuffer_get_devinfo(device_t bus, device_t child) +{ + struct lebuffer_devinfo *ldi; + + ldi = device_get_ivars(child); + return (&ldi->ldi_obdinfo); +} + +static int +lebuffer_print_res(struct lebuffer_devinfo *ldi) +{ + int rv; + + rv = 0; + rv += resource_list_print_type(&ldi->ldi_rl, "mem", SYS_RES_MEMORY, + "%#lx"); + rv += resource_list_print_type(&ldi->ldi_rl, "irq", SYS_RES_IRQ, "%ld"); + return (rv); +} |