From patchwork Wed Dec 8 09:52:09 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jaroslav Kysela X-Patchwork-Id: 522663 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 81D1DC433EF for ; Wed, 8 Dec 2021 09:53:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229601AbhLHJ5F (ORCPT ); Wed, 8 Dec 2021 04:57:05 -0500 Received: from mail1.perex.cz ([77.48.224.245]:59486 "EHLO mail1.perex.cz" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230129AbhLHJ5E (ORCPT ); Wed, 8 Dec 2021 04:57:04 -0500 Received: from mail1.perex.cz (localhost [127.0.0.1]) by smtp1.perex.cz (Perex's E-mail Delivery System) with ESMTP id 9FE12A0040; Wed, 8 Dec 2021 10:53:29 +0100 (CET) DKIM-Filter: OpenDKIM Filter v2.11.0 smtp1.perex.cz 9FE12A0040 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=perex.cz; s=default; t=1638957209; bh=JuYu2EwltgvZDeWCVSX3GmeTuEgcMK1XbrXNAuDm4x0=; h=From:To:Cc:Subject:Date:From; b=bHlthd0MPRQWoAbc6dM879KDexslkbjSW5Y34jFzMG/3p3uiCp4LSxstzyiVHD+B3 JG164HoH0HRErXgUMf1RpE8nrnlrj4vHD0I4CaiYQiDd2IXjOvgAYGqoaiMGG0UVrB ltJKs8Bb6pvLRDYkm+h/Ij6gwYqpn+EbpexNEePM= Received: from p1gen2.perex-int.cz (unknown [192.168.100.98]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) (Authenticated sender: perex) by mail1.perex.cz (Perex's E-mail Delivery System) with ESMTPSA; Wed, 8 Dec 2021 10:53:21 +0100 (CET) From: Jaroslav Kysela To: ALSA development Cc: Takashi Iwai , Jaroslav Kysela , Mark Brown , Shuah Khan , Takashi Sakamoto , Pierre-Louis Bossart , linux-kselftest@vger.kernel.org Subject: [PATCH] kselftest: alsa: Use private alsa-lib configuration in mixer test Date: Wed, 8 Dec 2021 10:52:09 +0100 Message-Id: <20211208095209.1772296-1-perex@perex.cz> X-Mailer: git-send-email 2.31.1 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-kselftest@vger.kernel.org As mentined by Takashi Sakamoto, the system-wide alsa-lib configuration may override the standard device declarations. This patch use the private alsa-lib configuration to set the predictable environment. Cc: Mark Brown Cc: Shuah Khan Cc: Takashi Sakamoto Cc: Pierre-Louis Bossart Cc: linux-kselftest@vger.kernel.org Link: https://lore.kernel.org/alsa-devel/Ya7TAHdMe9i41bsC@workstation/ Signed-off-by: Jaroslav Kysela --- tools/testing/selftests/alsa/mixer-test.c | 50 ++++++++++++++++++++++- 1 file changed, 49 insertions(+), 1 deletion(-) diff --git a/tools/testing/selftests/alsa/mixer-test.c b/tools/testing/selftests/alsa/mixer-test.c index b87475fb7372..0f533707484c 100644 --- a/tools/testing/selftests/alsa/mixer-test.c +++ b/tools/testing/selftests/alsa/mixer-test.c @@ -46,22 +46,68 @@ struct ctl_data { struct ctl_data *next; }; +static const char *alsa_config = +"ctl.hw {\n" +" @args [ CARD ]\n" +" @args.CARD.type string\n" +" type hw\n" +" card $CARD\n" +"}\n" +; + int num_cards = 0; int num_controls = 0; struct card_data *card_list = NULL; struct ctl_data *ctl_list = NULL; +#if !defined(SND_LIB_VER) || SND_LIB_VERSION < SND_LIB_VER(1, 2, 6) +int snd_config_load_string(snd_config_t **config, const char *s, size_t size) +{ + snd_input_t *input; + snd_config_t *dst; + int err; + + assert(config && s); + if (size == 0) + size = strlen(s); + err = snd_input_buffer_open(&input, s, size); + if (err < 0) + return err; + err = snd_config_top(&dst); + if (err < 0) { + snd_input_close(input); + return err; + } + err = snd_config_load(dst, input); + snd_input_close(input); + if (err < 0) { + snd_config_delete(dst); + return err; + } + *config = dst; + return 0; +} +#endif + void find_controls(void) { char name[32]; int card, ctl, err; struct card_data *card_data; struct ctl_data *ctl_data; + snd_config_t *config; card = -1; if (snd_card_next(&card) < 0 || card < 0) return; + err = snd_config_load_string(&config, alsa_config, strlen(alsa_config)); + if (err < 0) { + ksft_print_msg("Unable to parse custom alsa-lib configuration: %s\n", + snd_strerror(err)); + ksft_exit_fail(); + } + while (card >= 0) { sprintf(name, "hw:%d", card); @@ -71,7 +117,7 @@ void find_controls(void) ksft_exit_fail(); } - err = snd_ctl_open(&card_data->handle, name, 0); + err = snd_ctl_open_lconf(&card_data->handle, name, 0, config); if (err < 0) { ksft_print_msg("Failed to get hctl for card %d: %s\n", card, snd_strerror(err)); @@ -147,6 +193,8 @@ void find_controls(void) break; } } + + snd_config_delete(config); } /*