static int fdc_acpi_probe_children(device_t bus, device_t dev, void *fde) { struct fdc_walk_ctx *ctx; devclass_t fd_dc; int i; /* Setup the context and walk all child devices. */ ctx = malloc(sizeof(struct fdc_walk_ctx), M_TEMP, M_NOWAIT); if (ctx == NULL) { device_printf(dev, "no memory for walking children\n"); return (ENOMEM); } bcopy(fde, ctx->fd_present, sizeof(ctx->fd_present)); ctx->index = 0; ctx->dev = dev; ctx->acpi_dev = bus; ACPI_SCAN_CHILDREN(ctx->acpi_dev, dev, 1, fdc_acpi_probe_child, ctx); /* Add any devices not represented by an AML Device handle/node. */ fd_dc = devclass_find("fd"); for (i = 0; i < ACPI_FDC_MAXDEVS; i++) if (ctx->fd_present[i] == ACPI_FD_PRESENT && devclass_get_device(fd_dc, i) == NULL) { if (fdc_add_child(dev, "fd", i) == NULL) device_printf(dev, "fd add failed\n"); } free(ctx, M_TEMP); /* Attach any children found during the probe. */ return (bus_generic_attach(dev)); }
static int fdc_pccard_attach(device_t dev) { int error; struct fdc_data *fdc; device_t child; fdc = device_get_softc(dev); fdc->flags = FDC_NODMA | FDC_NOFAST; fdc->fdct = FDC_NE765; error = fdc_pccard_alloc_resources(dev, fdc); if (error == 0) error = fdc_attach(dev); if (error == 0) { child = fdc_add_child(dev, "fd", -1); device_set_flags(child, 0x24); error = bus_generic_attach(dev); } if (error) fdc_release_resources(fdc); return (error); }
static ACPI_STATUS fdc_acpi_probe_child(ACPI_HANDLE h, device_t *dev, int level, void *arg) { struct fdc_walk_ctx *ctx; device_t child, old_child; ACPI_BUFFER buf; ACPI_OBJECT *pkg, *obj; ACPI_STATUS status; ctx = (struct fdc_walk_ctx *)arg; buf.Pointer = NULL; /* * The first four ints are booleans that indicate whether fd0-3 are * present or not. The last is for a tape device, which we don't * bother supporting for now. */ if (ctx->index > 3) return (AE_OK); /* This device is not present, move on to the next. */ if (ctx->fd_present[ctx->index] != ACPI_FD_PRESENT) goto out; /* Create a device for the child with the given index. */ child = fdc_add_child(ctx->dev, "fd", ctx->index); if (child == NULL) goto out; old_child = *dev; *dev = child; /* Get temporary buffer for _FDI probe. */ buf.Length = ACPI_FDC_BUFLEN; buf.Pointer = malloc(buf.Length, M_TEMP, M_NOWAIT | M_ZERO); if (buf.Pointer == NULL) goto out; /* * Evaluate _FDI to get drive type to pass to the child. We use the * old child here since it has a valid ACPI_HANDLE since it is a * child of acpi. A better way to implement this would be to make fdc * support the ACPI handle ivar for its children. */ status = ACPI_EVALUATE_OBJECT(ctx->acpi_dev, old_child, "_FDI", NULL, &buf); if (ACPI_FAILURE(status)) { if (status != AE_NOT_FOUND) device_printf(ctx->dev, "_FDI failed - %#x\n", status); goto out; } pkg = (ACPI_OBJECT *)buf.Pointer; if (!ACPI_PKG_VALID(pkg, 16)) { device_printf(ctx->dev, "invalid _FDI package\n"); goto out; } obj = &pkg->Package.Elements[1]; if (obj == NULL || obj->Type != ACPI_TYPE_INTEGER) { device_printf(ctx->dev, "invalid type object in _FDI\n"); goto out; } fdc_set_fdtype(child, obj->Integer.Value); out: ctx->index++; if (buf.Pointer) free(buf.Pointer, M_TEMP); return (AE_OK); }