From patchwork Thu Jan 7 02:57:30 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kent Gibson X-Patchwork-Id: 12002675 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=-15.8 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,USER_AGENT_GIT autolearn=unavailable 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 0BF42C43381 for ; Thu, 7 Jan 2021 03:00:22 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id CBE5123100 for ; Thu, 7 Jan 2021 03:00:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727037AbhAGDAC (ORCPT ); Wed, 6 Jan 2021 22:00:02 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33390 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727035AbhAGDAB (ORCPT ); Wed, 6 Jan 2021 22:00:01 -0500 Received: from mail-pg1-x534.google.com (mail-pg1-x534.google.com [IPv6:2607:f8b0:4864:20::534]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 8F4BCC0612F6; Wed, 6 Jan 2021 18:59:06 -0800 (PST) Received: by mail-pg1-x534.google.com with SMTP id c132so3823470pga.3; Wed, 06 Jan 2021 18:59:06 -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=6/z5ghLEwu+8Vo34yP7ftBnMskKAhqlwuhxiVBT/nsA=; b=ihx/S5Ct+q+8hcbLOAUMfzYUkIugBpTMWOsnOK8SXYJeoqU5iJjgImrTPdkBEwL4Hn cHSaMBz/iw2jpjSAOGJwlQXgQxr60Rm2A2RgufQpuxb1FYhIEuMz5nRJ1qspvZU6BLSp aS1dQwn4dkQqjGr2NCHY443CngsgGmX/186gGyoyhdzM1uAGf95x/XCRNJ9v7ulandtU U8T7z3fI3S4nSkOG1Ei/Yirpq0GuFtE+AHIuFJkl31mr5QKcdCulXEo0JjhJjoQ3mH1s B1125kR+cNFjDI0Go4bobSOm5eQGO9NRC9M7d1xvZ6EQgdCvwc0lj/56Qw0v9UJQegFr ZHQA== 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=6/z5ghLEwu+8Vo34yP7ftBnMskKAhqlwuhxiVBT/nsA=; b=RmrNPK3ZxTlMEEHV7qRrc/tmKZnWISlcpiUHr5e2D3VXYtSbBSbjpWUCx8R06r+BxN x38FgHu43J7vZudT1LR8dW/oDtEcbGL8wU4SnL1YkEmQuEKasJwwSTM/Odyz7qMh7jIa QlUlmZRny1QysREqPiNFYs9Rr+tCte9NMnbGcwFR1zOthFr6ibq9xCvZDCN4TGkR3RXq QdTb8+d5Xa/RM1SXoNaYR/m10BYCBI41d7vIEJIz2Zv4idVYg9x2W1b2zxNnBnXiyPzJ WdVESg62uCxSsIiE8N94/HSD9opdFQR3M553dK0v+kLt1BsxK5bl0jQwFD4nrWtDRVpF v/GA== X-Gm-Message-State: AOAM532yHEibFXLbh2z2u1103880FfBHlTAI49oN0wSN5u2MomSm9uw9 2pZnNkTBKcKq4VKUMuTA7cj0WjKMGTr4yQ== X-Google-Smtp-Source: ABdhPJzX0Z5Puqg+cfLuwmET4PdVL9ykDumJgEJBwPtSFpk2lf8UAUdrxeJd2XC/MeA0Fi20IwJ21A== X-Received: by 2002:a65:4906:: with SMTP id p6mr7484236pgs.173.1609988345711; Wed, 06 Jan 2021 18:59:05 -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 x16sm3900120pfp.62.2021.01.06.18.59.01 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 06 Jan 2021 18:59:05 -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 v2 6/7] selftests: gpio: port to GPIO uAPI v2 Date: Thu, 7 Jan 2021 10:57:30 +0800 Message-Id: <20210107025731.226017-7-warthog618@gmail.com> X-Mailer: git-send-email 2.30.0 In-Reply-To: <20210107025731.226017-1-warthog618@gmail.com> References: <20210107025731.226017-1-warthog618@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-kselftest@vger.kernel.org Add a port to the GPIO uAPI v2 interface and make it the default. Signed-off-by: Kent Gibson Acked-by: Linus Walleij Reviewed-by: Bartosz Golaszewski --- .../testing/selftests/gpio/gpio-mockup-cdev.c | 75 +++++++++++++++++-- tools/testing/selftests/gpio/gpio-mockup.sh | 11 ++- 2 files changed, 76 insertions(+), 10 deletions(-) diff --git a/tools/testing/selftests/gpio/gpio-mockup-cdev.c b/tools/testing/selftests/gpio/gpio-mockup-cdev.c index 3a7fc3ac1349..e83eac71621a 100644 --- a/tools/testing/selftests/gpio/gpio-mockup-cdev.c +++ b/tools/testing/selftests/gpio/gpio-mockup-cdev.c @@ -18,6 +18,44 @@ #define CONSUMER "gpio-mockup-cdev" +static int request_line_v2(int cfd, unsigned int offset, + uint64_t flags, unsigned int val) +{ + struct gpio_v2_line_request req; + int ret; + + memset(&req, 0, sizeof(req)); + req.num_lines = 1; + req.offsets[0] = offset; + req.config.flags = flags; + strcpy(req.consumer, CONSUMER); + if (flags & GPIO_V2_LINE_FLAG_OUTPUT) { + req.config.num_attrs = 1; + req.config.attrs[0].mask = 1; + req.config.attrs[0].attr.id = GPIO_V2_LINE_ATTR_ID_OUTPUT_VALUES; + if (val) + req.config.attrs[0].attr.values = 1; + } + ret = ioctl(cfd, GPIO_V2_GET_LINE_IOCTL, &req); + if (ret == -1) + return -errno; + return req.fd; +} + + +static int get_value_v2(int lfd) +{ + struct gpio_v2_line_values vals; + int ret; + + memset(&vals, 0, sizeof(vals)); + vals.mask = 1; + ret = ioctl(lfd, GPIO_V2_LINE_GET_VALUES_IOCTL, &vals); + if (ret == -1) + return -errno; + return vals.bits & 0x1; +} + static int request_line_v1(int cfd, unsigned int offset, uint32_t flags, unsigned int val) { @@ -57,6 +95,7 @@ static void usage(char *prog) printf(" (default is to leave bias unchanged):\n"); printf(" -l: set line active low (default is active high)\n"); printf(" -s: set line value (default is to get line value)\n"); + printf(" -u: uAPI version to use (default is 2)\n"); exit(-1); } @@ -78,29 +117,42 @@ int main(int argc, char *argv[]) { char *chip; int opt, ret, cfd, lfd; - unsigned int offset, val; + unsigned int offset, val, abiv; uint32_t flags_v1; + uint64_t flags_v2; + abiv = 2; ret = 0; flags_v1 = GPIOHANDLE_REQUEST_INPUT; + flags_v2 = GPIO_V2_LINE_FLAG_INPUT; while ((opt = getopt(argc, argv, "lb:s:u:")) != -1) { switch (opt) { case 'l': flags_v1 |= GPIOHANDLE_REQUEST_ACTIVE_LOW; + flags_v2 |= GPIO_V2_LINE_FLAG_ACTIVE_LOW; break; case 'b': - if (strcmp("pull-up", optarg) == 0) + if (strcmp("pull-up", optarg) == 0) { flags_v1 |= GPIOHANDLE_REQUEST_BIAS_PULL_UP; - else if (strcmp("pull-down", optarg) == 0) + flags_v2 |= GPIO_V2_LINE_FLAG_BIAS_PULL_UP; + } else if (strcmp("pull-down", optarg) == 0) { flags_v1 |= GPIOHANDLE_REQUEST_BIAS_PULL_DOWN; - else if (strcmp("disabled", optarg) == 0) + flags_v2 |= GPIO_V2_LINE_FLAG_BIAS_PULL_DOWN; + } else if (strcmp("disabled", optarg) == 0) { flags_v1 |= GPIOHANDLE_REQUEST_BIAS_DISABLE; + flags_v2 |= GPIO_V2_LINE_FLAG_BIAS_DISABLED; + } break; case 's': val = atoi(optarg); flags_v1 &= ~GPIOHANDLE_REQUEST_INPUT; flags_v1 |= GPIOHANDLE_REQUEST_OUTPUT; + flags_v2 &= ~GPIO_V2_LINE_FLAG_INPUT; + flags_v2 |= GPIO_V2_LINE_FLAG_OUTPUT; + break; + case 'u': + abiv = atoi(optarg); break; default: usage(argv[0]); @@ -119,7 +171,10 @@ int main(int argc, char *argv[]) return -errno; } - lfd = request_line_v1(cfd, offset, flags_v1, val); + if (abiv == 1) + lfd = request_line_v1(cfd, offset, flags_v1, val); + else + lfd = request_line_v2(cfd, offset, flags_v2, val); close(cfd); @@ -128,10 +183,14 @@ int main(int argc, char *argv[]) return lfd; } - if (flags_v1 & GPIOHANDLE_REQUEST_OUTPUT) + if (flags_v2 & GPIO_V2_LINE_FLAG_OUTPUT) { wait_signal(); - else - ret = get_value_v1(lfd); + } else { + if (abiv == 1) + ret = get_value_v1(lfd); + else + ret = get_value_v2(lfd); + } close(lfd); diff --git a/tools/testing/selftests/gpio/gpio-mockup.sh b/tools/testing/selftests/gpio/gpio-mockup.sh index 0aa8e4294de1..0d6c5f7f95d2 100755 --- a/tools/testing/selftests/gpio/gpio-mockup.sh +++ b/tools/testing/selftests/gpio/gpio-mockup.sh @@ -14,6 +14,7 @@ module="gpio-mockup" verbose= full_test= random= +uapi_opt= active_opt= bias_opt= line_set_pid= @@ -30,6 +31,7 @@ usage() echo "-r: test random lines as well as fence posts" echo "-t: interface type:" echo " cdev (character device ABI) - default" + echo " cdev_v1 (deprecated character device ABI)" echo " sysfs (deprecated SYSFS ABI)" echo "-v: verbose progress reporting" exit $ksft_fail @@ -100,7 +102,8 @@ get_line() { release_line - $BASE/gpio-mockup-cdev $active_opt /dev/$chip $offset + local cdev_opts=${uapi_opt}${active_opt} + $BASE/gpio-mockup-cdev $cdev_opts /dev/$chip $offset echo $? } @@ -142,7 +145,7 @@ set_line() esac done - local cdev_opts=${active_opt} + local cdev_opts=${uapi_opt}${active_opt} if [ "$val" ]; then $BASE/gpio-mockup-cdev $cdev_opts -s$val /dev/$chip $offset & # failure to set is detected by reading mockup and toggling values @@ -340,6 +343,10 @@ sysfs) source $BASE/gpio-mockup-sysfs.sh echo "WARNING: gpio sysfs ABI is deprecated." ;; +cdev_v1) + echo "WARNING: gpio cdev ABI v1 is deprecated." + uapi_opt="-u1 " + ;; cdev) ;; *)