From patchwork Sat Jan 2 02:29:44 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kent Gibson X-Patchwork-Id: 356225 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-12.9 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,UNWANTED_LANGUAGE_BODY, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id A9D01C433DB for ; Sat, 2 Jan 2021 02:31:37 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 75D8F22241 for ; Sat, 2 Jan 2021 02:31:37 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727415AbhABCbW (ORCPT ); Fri, 1 Jan 2021 21:31:22 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39022 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726424AbhABCbT (ORCPT ); Fri, 1 Jan 2021 21:31:19 -0500 Received: from mail-pg1-x52e.google.com (mail-pg1-x52e.google.com [IPv6:2607:f8b0:4864:20::52e]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B3EAFC0613CF; Fri, 1 Jan 2021 18:30:39 -0800 (PST) Received: by mail-pg1-x52e.google.com with SMTP id c22so15231500pgg.13; Fri, 01 Jan 2021 18:30:39 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=p1pm++rKujuLrrLISgy3rkLqZrTiXDDvlro6rhzJ6Uo=; b=shW8e8wkb/g6qXBJ1fLSjjf3XnGhE84tv8MeCeyLef88Zl1OmxlEssPbKnTyOOxSr/ V4a1TPsv3WLhIPyYfn0vLya6AKeakOvZi0+2betUDmcHgMTUmVYq2VGwHRGFbAaa934i n+QWvw6Dir9aqdcYHJSMUGEBgBlCa5HQfOdtx7V9pqcvwMyAzB0E5L+rDNxB6yB+w8o9 BNe4Jzw3AXpVXUqAt9dWyma4HBLM2gtc3AxDh1TZ1ltVDkt6gfIuxzmujPO3Gma5JDSD ZcSRmCxTNOnJrYct9VgtcYgp9Mnfsusp7R5ofyIPBSWwIM+XnGKF7U76fXUBHFoDck1a 65lA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=p1pm++rKujuLrrLISgy3rkLqZrTiXDDvlro6rhzJ6Uo=; b=A2/2eKV9Ys4PQoCrkfmxIpf4ChjBwEIkwEgtxieVzwJgGHw1UWn9m1x88t0uWFgmy4 NFgOLCwSM8tty0uLtUWN143QviOy2jozlat4kcNlyOro8R2z9UEt+hwuhtj0gizcrGjF AmqUVIaXS5ubTrXfSaCUsRXm0br/GF7ZIMhb9586jISRGF5at2nJ7RN1nrTA+7Jj2oGR /UZ7IpdgNT9z589J7rvZSNvJnKoMlzwqWUP9yC/rt3AScs8CUNKff5Gt+UrpKBSvevTb JwiU2EfjRROGSwIAjfUFmHS5ZrzMEuUtMHxnsnZCRjclP0rYzuY6KMS337Uln6BJLRrI YVDQ== X-Gm-Message-State: AOAM530r8iyCkfGioV9a7jF+Rf0wgY5BDZblld58kvPgRrOu6v9cQ655 /qY90q5oIeCyFCnEHgRtFF3lzGHcyykiyQ== X-Google-Smtp-Source: ABdhPJwJRSrk401ef5yHgK4ADh2OAgvvKAz3hkL6OAJvXQWCLvs1IyxAmXbs0lqIXFsH3TuyAIV3mw== X-Received: by 2002:a62:7fc1:0:b029:19f:1dab:5029 with SMTP id a184-20020a627fc10000b029019f1dab5029mr56974919pfd.13.1609554638673; Fri, 01 Jan 2021 18:30:38 -0800 (PST) Received: from sol.lan (106-69-181-20.dyn.iinet.net.au. [106.69.181.20]) by smtp.gmail.com with ESMTPSA id cl23sm13995664pjb.23.2021.01.01.18.30.34 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 01 Jan 2021 18:30:38 -0800 (PST) From: Kent Gibson To: linux-kernel@vger.kernel.org, linux-gpio@vger.kernel.org, linux-kselftest@vger.kernel.org, bgolaszewski@baylibre.com, linus.walleij@linaro.org, shuah@kernel.org, bamv2005@gmail.com Cc: Kent Gibson Subject: [PATCH 2/7] selftests: gpio: remove obsolete gpio-mockup-chardev.c Date: Sat, 2 Jan 2021 10:29:44 +0800 Message-Id: <20210102022949.92304-3-warthog618@gmail.com> X-Mailer: git-send-email 2.30.0 In-Reply-To: <20210102022949.92304-1-warthog618@gmail.com> References: <20210102022949.92304-1-warthog618@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-kselftest@vger.kernel.org GPIO selftests have changed to new gpio-mockup-cdev helper, so remove old gpio-mockup-chardev helper. Signed-off-by: Kent Gibson --- .../selftests/gpio/gpio-mockup-chardev.c | 323 ------------------ 1 file changed, 323 deletions(-) delete mode 100644 tools/testing/selftests/gpio/gpio-mockup-chardev.c diff --git a/tools/testing/selftests/gpio/gpio-mockup-chardev.c b/tools/testing/selftests/gpio/gpio-mockup-chardev.c deleted file mode 100644 index 73ead8828d3a..000000000000 --- a/tools/testing/selftests/gpio/gpio-mockup-chardev.c +++ /dev/null @@ -1,323 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-only -/* - * GPIO chardev test helper - * - * Copyright (C) 2016 Bamvor Jian Zhang - */ - -#define _GNU_SOURCE -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include "../../../gpio/gpio-utils.h" - -#define CONSUMER "gpio-selftest" -#define GC_NUM 10 -enum direction { - OUT, - IN -}; - -static int get_debugfs(char **path) -{ - struct libmnt_context *cxt; - struct libmnt_table *tb; - struct libmnt_iter *itr = NULL; - struct libmnt_fs *fs; - int found = 0, ret; - - cxt = mnt_new_context(); - if (!cxt) - err(EXIT_FAILURE, "libmount context allocation failed"); - - itr = mnt_new_iter(MNT_ITER_FORWARD); - if (!itr) - err(EXIT_FAILURE, "failed to initialize libmount iterator"); - - if (mnt_context_get_mtab(cxt, &tb)) - err(EXIT_FAILURE, "failed to read mtab"); - - while (mnt_table_next_fs(tb, itr, &fs) == 0) { - const char *type = mnt_fs_get_fstype(fs); - - if (!strcmp(type, "debugfs")) { - found = 1; - break; - } - } - if (found) { - ret = asprintf(path, "%s/gpio", mnt_fs_get_target(fs)); - if (ret < 0) - err(EXIT_FAILURE, "failed to format string"); - } - - mnt_free_iter(itr); - mnt_free_context(cxt); - - if (!found) - return -1; - - return 0; -} - -static int gpio_debugfs_get(const char *consumer, int *dir, int *value) -{ - char *debugfs; - FILE *f; - char *line = NULL; - size_t len = 0; - char *cur; - int found = 0; - - if (get_debugfs(&debugfs) != 0) - err(EXIT_FAILURE, "debugfs is not mounted"); - - f = fopen(debugfs, "r"); - if (!f) - err(EXIT_FAILURE, "read from gpio debugfs failed"); - - /* - * gpio-2 ( |gpio-selftest ) in lo - */ - while (getline(&line, &len, f) != -1) { - cur = strstr(line, consumer); - if (cur == NULL) - continue; - - cur = strchr(line, ')'); - if (!cur) - continue; - - cur += 2; - if (!strncmp(cur, "out", 3)) { - *dir = OUT; - cur += 4; - } else if (!strncmp(cur, "in", 2)) { - *dir = IN; - cur += 4; - } - - if (!strncmp(cur, "hi", 2)) - *value = 1; - else if (!strncmp(cur, "lo", 2)) - *value = 0; - - found = 1; - break; - } - free(debugfs); - fclose(f); - free(line); - - if (!found) - return -1; - - return 0; -} - -static struct gpiochip_info *list_gpiochip(const char *gpiochip_name, int *ret) -{ - struct gpiochip_info *cinfo; - struct gpiochip_info *current; - const struct dirent *ent; - DIR *dp; - char *chrdev_name; - int fd; - int i = 0; - - cinfo = calloc(sizeof(struct gpiochip_info) * 4, GC_NUM + 1); - if (!cinfo) - err(EXIT_FAILURE, "gpiochip_info allocation failed"); - - current = cinfo; - dp = opendir("/dev"); - if (!dp) { - *ret = -errno; - goto error_out; - } else { - *ret = 0; - } - - while (ent = readdir(dp), ent) { - if (check_prefix(ent->d_name, "gpiochip")) { - *ret = asprintf(&chrdev_name, "/dev/%s", ent->d_name); - if (*ret < 0) - goto error_out; - - fd = open(chrdev_name, 0); - if (fd == -1) { - *ret = -errno; - fprintf(stderr, "Failed to open %s\n", - chrdev_name); - goto error_close_dir; - } - *ret = ioctl(fd, GPIO_GET_CHIPINFO_IOCTL, current); - if (*ret == -1) { - perror("Failed to issue CHIPINFO IOCTL\n"); - goto error_close_dir; - } - close(fd); - if (strcmp(current->label, gpiochip_name) == 0 - || check_prefix(current->label, gpiochip_name)) { - *ret = 0; - current++; - i++; - } - } - } - - if ((!*ret && i == 0) || *ret < 0) { - free(cinfo); - cinfo = NULL; - } - if (!*ret && i > 0) { - cinfo = realloc(cinfo, sizeof(struct gpiochip_info) * 4 * i); - *ret = i; - } - -error_close_dir: - closedir(dp); -error_out: - if (*ret < 0) - err(EXIT_FAILURE, "list gpiochip failed: %s", strerror(*ret)); - - return cinfo; -} - -int gpio_pin_test(struct gpiochip_info *cinfo, int line, int flag, int value) -{ - struct gpiohandle_data data; - unsigned int lines[] = {line}; - int fd; - int debugfs_dir = IN; - int debugfs_value = 0; - int ret; - - data.values[0] = value; - ret = gpiotools_request_linehandle(cinfo->name, lines, 1, flag, &data, - CONSUMER); - if (ret < 0) - goto fail_out; - else - fd = ret; - - ret = gpio_debugfs_get(CONSUMER, &debugfs_dir, &debugfs_value); - if (ret) { - ret = -EINVAL; - goto fail_out; - } - if (flag & GPIOHANDLE_REQUEST_INPUT) { - if (debugfs_dir != IN) { - errno = -EINVAL; - ret = -errno; - } - } else if (flag & GPIOHANDLE_REQUEST_OUTPUT) { - if (flag & GPIOHANDLE_REQUEST_ACTIVE_LOW) - debugfs_value = !debugfs_value; - - if (!(debugfs_dir == OUT && value == debugfs_value)) { - errno = -EINVAL; - ret = -errno; - } - } - gpiotools_release_linehandle(fd); - -fail_out: - if (ret) - err(EXIT_FAILURE, "gpio<%s> line<%d> test flag<0x%x> value<%d>", - cinfo->name, line, flag, value); - - return ret; -} - -void gpio_pin_tests(struct gpiochip_info *cinfo, unsigned int line) -{ - printf("line<%d>", line); - gpio_pin_test(cinfo, line, GPIOHANDLE_REQUEST_OUTPUT, 0); - printf("."); - gpio_pin_test(cinfo, line, GPIOHANDLE_REQUEST_OUTPUT, 1); - printf("."); - gpio_pin_test(cinfo, line, - GPIOHANDLE_REQUEST_OUTPUT | GPIOHANDLE_REQUEST_ACTIVE_LOW, - 0); - printf("."); - gpio_pin_test(cinfo, line, - GPIOHANDLE_REQUEST_OUTPUT | GPIOHANDLE_REQUEST_ACTIVE_LOW, - 1); - printf("."); - gpio_pin_test(cinfo, line, GPIOHANDLE_REQUEST_INPUT, 0); - printf("."); -} - -/* - * ./gpio-mockup-chardev gpio_chip_name_prefix is_valid_gpio_chip - * Return 0 if successful or exit with EXIT_FAILURE if test failed. - * gpio_chip_name_prefix: The prefix of gpiochip you want to test. E.g. - * gpio-mockup - * is_valid_gpio_chip: Whether the gpio_chip is valid. 1 means valid, - * 0 means invalid which could not be found by - * list_gpiochip. - */ -int main(int argc, char *argv[]) -{ - char *prefix; - int valid; - struct gpiochip_info *cinfo; - struct gpiochip_info *current; - int i; - int ret; - - if (argc < 3) { - printf("Usage: %s prefix is_valid", argv[0]); - exit(EXIT_FAILURE); - } - - prefix = argv[1]; - valid = strcmp(argv[2], "true") == 0 ? 1 : 0; - - printf("Test gpiochip %s: ", prefix); - cinfo = list_gpiochip(prefix, &ret); - if (!cinfo) { - if (!valid && ret == 0) { - printf("Invalid test successful\n"); - ret = 0; - goto out; - } else { - ret = -EINVAL; - goto out; - } - } else if (cinfo && !valid) { - ret = -EINVAL; - goto out; - } - current = cinfo; - for (i = 0; i < ret; i++) { - gpio_pin_tests(current, 0); - gpio_pin_tests(current, current->lines - 1); - gpio_pin_tests(current, random() % current->lines); - current++; - } - ret = 0; - printf("successful\n"); - -out: - if (ret) - fprintf(stderr, "gpio<%s> test failed\n", prefix); - - if (cinfo) - free(cinfo); - - if (ret) - exit(EXIT_FAILURE); - - return ret; -}