Module Name: src Committed By: thorpej Date: Sun Apr 25 21:49:56 UTC 2021
Modified Files: src/sys/dev/acpi [thorpej-i2c-spi-conf]: acpi_i2c.c Removed Files: src/sys/dev/acpi [thorpej-i2c-spi-conf]: acpi_i2c.h Log Message: Implement "i2c-enumerate-devices" for ACPI. To generate a diff of this commit: cvs rdiff -u -r1.11 -r1.11.4.1 src/sys/dev/acpi/acpi_i2c.c cvs rdiff -u -r1.2 -r0 src/sys/dev/acpi/acpi_i2c.h Please note that diffs are not public domain; they are subject to the copyright notices on the relevant files.
Modified files: Index: src/sys/dev/acpi/acpi_i2c.c diff -u src/sys/dev/acpi/acpi_i2c.c:1.11 src/sys/dev/acpi/acpi_i2c.c:1.11.4.1 --- src/sys/dev/acpi/acpi_i2c.c:1.11 Tue Jan 26 01:23:08 2021 +++ src/sys/dev/acpi/acpi_i2c.c Sun Apr 25 21:49:56 2021 @@ -1,11 +1,11 @@ -/* $NetBSD: acpi_i2c.c,v 1.11 2021/01/26 01:23:08 thorpej Exp $ */ +/* $NetBSD: acpi_i2c.c,v 1.11.4.1 2021/04/25 21:49:56 thorpej Exp $ */ /*- * Copyright (c) 2017, 2021 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation - * by Manuel Bouyer. + * by Manuel Bouyer and Jason R. Thorpe. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions @@ -30,11 +30,10 @@ */ #include <sys/cdefs.h> -__KERNEL_RCSID(0, "$NetBSD: acpi_i2c.c,v 1.11 2021/01/26 01:23:08 thorpej Exp $"); +__KERNEL_RCSID(0, "$NetBSD: acpi_i2c.c,v 1.11.4.1 2021/04/25 21:49:56 thorpej Exp $"); #include <dev/acpi/acpireg.h> #include <dev/acpi/acpivar.h> -#include <dev/acpi/acpi_i2c.h> #include <dev/i2c/i2cvar.h> #include <sys/kmem.h> @@ -69,15 +68,16 @@ acpi_i2c_resource_parse_callback(ACPI_RE return_ACPI_STATUS(AE_OK); } -static void -acpi_enter_i2c_device(struct acpi_devnode *ad, prop_array_t array) +static bool +acpi_i2c_enumerate_device(device_t dev, struct acpi_devnode *ad, + struct i2c_enumerate_devices_args * const args) { - prop_dictionary_t dev; - struct acpi_i2c_context i2cc; - ACPI_STATUS rv; - const char *name; char *clist; size_t clist_size; + prop_dictionary_t props; + struct acpi_i2c_context i2cc; + bool cbrv; + ACPI_STATUS rv; memset(&i2cc, 0, sizeof(i2cc)); rv = AcpiWalkResources(ad->ad_handle, "_CRS", @@ -86,58 +86,61 @@ acpi_enter_i2c_device(struct acpi_devnod aprint_error("ACPI: unable to get resources " "for %s: %s\n", ad->ad_name, AcpiFormatException(rv)); - return; + return true; /* keep enumerating */ } if (i2cc.i2c_addr == 0) - return; - dev = prop_dictionary_create(); - if (dev == NULL) { - aprint_error("ignoring device %s (no memory)\n", - ad->ad_name); - return; - } + return true; /* keep enumerating */ + clist = acpi_pack_compat_list(ad->ad_devinfo, &clist_size); if (clist == NULL) { - prop_object_release(dev); - aprint_error("ignoring device %s (no _HID or _CID)\n", + aprint_error("ACPI: ignoring device %s (no _HID or _CID)\n", ad->ad_name); - return; + return true; /* keep enumerating */ } - if ((ad->ad_devinfo->Valid & ACPI_VALID_HID) == 0) - name = ad->ad_name; - else - name = ad->ad_devinfo->HardwareId.String; - prop_dictionary_set_string(dev, "name", name); - prop_dictionary_set_uint32(dev, "addr", i2cc.i2c_addr); - prop_dictionary_set_uint64(dev, "cookie", (uintptr_t)ad->ad_handle); - prop_dictionary_set_uint32(dev, "cookietype", I2C_COOKIE_ACPI); - prop_dictionary_set_data(dev, "compatible", clist, clist_size); + props = prop_dictionary_create(); + + args->ia->ia_addr = i2cc.i2c_addr; + args->ia->ia_name = ad->ad_name; + args->ia->ia_clist = clist; + args->ia->ia_clist_size = clist_size; + args->ia->ia_prop = props; + args->ia->ia_devhandle = devhandle_from_acpi(ad->ad_handle); + args->ia->ia_cookie = (uint64_t)ad->ad_handle; /* XXX */ + args->ia->ia_cookietype = I2C_COOKIE_ACPI; /* XXX */ + + cbrv = args->callback(dev, args); + + prop_object_release(props); kmem_free(clist, clist_size); - prop_array_add(array, dev); - prop_object_release(dev); + return cbrv; /* callback decides if we keep enumerating */ } -prop_array_t -acpi_enter_i2c_devs(device_t dev, struct acpi_devnode *devnode) +static int +acpi_i2c_enumerate_devices(device_t dev, devhandle_t call_handle, void *v) { - struct acpi_devnode *ad; - prop_array_t array = prop_array_create(); - - if (array == NULL) - return NULL; + struct i2c_enumerate_devices_args *args = v; + struct acpi_devnode *ad, *devnode; + ACPI_HANDLE *hdl = devhandle_to_acpi(call_handle); + + devnode = acpi_match_node(hdl); + if (devnode == NULL) { + aprint_verbose_dev(dev, "%s: no devnode matching handle\n", + __func__); + return 0; + } SIMPLEQ_FOREACH(ad, &devnode->ad_child_head, ad_child_list) { if (ad->ad_devinfo->Type != ACPI_TYPE_DEVICE) continue; if (!acpi_device_present(ad->ad_handle)) continue; - acpi_enter_i2c_device(ad, array); + if (!acpi_i2c_enumerate_device(dev, ad, args)) + break; } - if (dev != NULL) { - acpi_claim_childdevs(dev, devnode); - } + acpi_claim_childdevs(dev, devnode); - return array; + return 0; } +ACPI_DEVICE_CALL_REGISTER("i2c-enumerate-devices", acpi_i2c_enumerate_devices)