From patchwork Mon Jun 21 18:10:02 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Geoffrey D. Bennett" X-Patchwork-Id: 12335453 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=-12.4 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,UNWANTED_LANGUAGE_BODY, USER_AGENT_SANE_1 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 A304FC4743C for ; Mon, 21 Jun 2021 18:18:46 +0000 (UTC) Received: from alsa0.perex.cz (alsa0.perex.cz [77.48.224.243]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 29133611BD for ; Mon, 21 Jun 2021 18:18:46 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 29133611BD Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=b4.vu Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=alsa-devel-bounces@alsa-project.org Received: from alsa1.perex.cz (alsa1.perex.cz [207.180.221.201]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by alsa0.perex.cz (Postfix) with ESMTPS id B79B5172F; Mon, 21 Jun 2021 20:17:54 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz B79B5172F DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1624299524; bh=5l7+hpDk/BP7R3BZ1TcZtAM2Wv6AsnuFtmX3zPYTQQc=; h=Date:From:To:Subject:References:In-Reply-To:Cc:List-Id: List-Unsubscribe:List-Archive:List-Post:List-Help:List-Subscribe: From; b=BbC5IMt8B35wOqtou8/8fAmflpmriQ80b+HBEfQW/2kFMNPoUM1OxI7oGR114pL3L FDfQrbne7K+PX9eEa2Y0N1fGyGa3ww8doVYlxh6pUSiYTcaWoTFinnuPLmsrFyovNe AZ8Oq6AiJLdjsYypECPY8q9YMfq+Ye0cVjWFLyaE= Received: from alsa1.perex.cz (localhost.localdomain [127.0.0.1]) by alsa1.perex.cz (Postfix) with ESMTP id 6984BF805AF; Mon, 21 Jun 2021 20:10:14 +0200 (CEST) Received: by alsa1.perex.cz (Postfix, from userid 50401) id C8662F805A1; Mon, 21 Jun 2021 20:10:08 +0200 (CEST) Received: from m.b4.vu (m.b4.vu [203.16.231.148]) (using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by alsa1.perex.cz (Postfix) with ESMTPS id DC70FF8057D for ; Mon, 21 Jun 2021 20:10:04 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz DC70FF8057D Received: by m.b4.vu (Postfix, from userid 1000) id 6344161E286F; Tue, 22 Jun 2021 03:40:02 +0930 (ACST) Date: Tue, 22 Jun 2021 03:40:02 +0930 From: "Geoffrey D. Bennett" To: alsa-devel@alsa-project.org, Takashi Iwai Subject: [PATCH 23/31] ALSA: usb-audio: scarlett2: Add phantom power switch support Message-ID: <7338519d2572359f5c415b8909ed72c91c22af06.1624294591.git.g@b4.vu> References: MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.10.1 (2018-07-13) Cc: Hin-Tak Leung , Vladimir Sadovnikov X-BeenThere: alsa-devel@alsa-project.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: "Alsa-devel mailing list for ALSA developers - http://www.alsa-project.org" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: alsa-devel-bounces@alsa-project.org Sender: "Alsa-devel" Some inputs on Gen 3 models support software-selectable phantom power. Add support for getting and setting the state of those switches and the "Phantom Power Persistence" switch. Co-developed-by: Vladimir Sadovnikov Signed-off-by: Vladimir Sadovnikov Signed-off-by: Geoffrey D. Bennett --- sound/usb/mixer_scarlett_gen2.c | 197 +++++++++++++++++++++++++++++++- 1 file changed, 196 insertions(+), 1 deletion(-) diff --git a/sound/usb/mixer_scarlett_gen2.c b/sound/usb/mixer_scarlett_gen2.c index a8c5a28f21c9..87672e6b4505 100644 --- a/sound/usb/mixer_scarlett_gen2.c +++ b/sound/usb/mixer_scarlett_gen2.c @@ -48,12 +48,15 @@ * Support for Solo/2i2 Gen 3 added in May 2021 (thanks to Alexander * Vorona for 2i2 protocol traces). * + * Support for phantom power added in May 2021. + * * This ALSA mixer gives access to (model-dependent): * - input, output, mixer-matrix muxes * - mixer-matrix gain stages * - gain/volume/mute controls * - level meters * - line/inst level, pad, and air controls + * - phantom power controls * - disable/enable MSD mode * * @@ -174,6 +177,7 @@ static const u16 scarlett2_mixer_values[SCARLETT2_MIXER_VALUE_COUNT] = { #define SCARLETT2_LEVEL_SWITCH_MAX 2 #define SCARLETT2_PAD_SWITCH_MAX 8 #define SCARLETT2_AIR_SWITCH_MAX 8 +#define SCARLETT2_PHANTOM_SWITCH_MAX 2 /* Maximum number of inputs to the mixer */ #define SCARLETT2_INPUT_MIX_MAX 25 @@ -328,6 +332,12 @@ struct scarlett2_device_info { */ u8 air_input_count; + /* the number of phantom (48V) software switchable controls */ + u8 phantom_count; + + /* the number of inputs each phantom switch controls */ + u8 inputs_per_phantom; + /* additional description for the line out volume controls */ const char * const line_out_descrs[SCARLETT2_ANALOGUE_MAX]; @@ -364,6 +374,8 @@ struct scarlett2_data { u8 pad_switch[SCARLETT2_PAD_SWITCH_MAX]; u8 dim_mute[SCARLETT2_DIM_MUTE_COUNT]; u8 air_switch[SCARLETT2_AIR_SWITCH_MAX]; + u8 phantom_switch[SCARLETT2_PHANTOM_SWITCH_MAX]; + u8 phantom_persistence; u8 msd_switch; struct snd_kcontrol *sync_ctl; struct snd_kcontrol *master_vol_ctl; @@ -373,6 +385,7 @@ struct scarlett2_data { struct snd_kcontrol *level_ctls[SCARLETT2_LEVEL_SWITCH_MAX]; struct snd_kcontrol *pad_ctls[SCARLETT2_PAD_SWITCH_MAX]; struct snd_kcontrol *air_ctls[SCARLETT2_AIR_SWITCH_MAX]; + struct snd_kcontrol *phantom_ctls[SCARLETT2_PHANTOM_SWITCH_MAX]; u8 mux[SCARLETT2_MUX_MAX]; u8 mix[SCARLETT2_INPUT_MIX_MAX * SCARLETT2_OUTPUT_MIX_MAX]; }; @@ -535,6 +548,8 @@ static const struct scarlett2_device_info solo_gen3_info = { .level_input_count = 1, .level_input_first = 1, .air_input_count = 1, + .phantom_count = 1, + .inputs_per_phantom = 1, }; static const struct scarlett2_device_info s2i2_gen3_info = { @@ -543,6 +558,8 @@ static const struct scarlett2_device_info s2i2_gen3_info = { .has_msd_mode = 1, .level_input_count = 2, .air_input_count = 2, + .phantom_count = 1, + .inputs_per_phantom = 2, }; static const struct scarlett2_device_info s4i4_gen3_info = { @@ -553,6 +570,8 @@ static const struct scarlett2_device_info s4i4_gen3_info = { .level_input_count = 2, .pad_input_count = 2, .air_input_count = 2, + .phantom_count = 1, + .inputs_per_phantom = 2, .line_out_descrs = { "Monitor L", @@ -597,6 +616,8 @@ static const struct scarlett2_device_info s8i6_gen3_info = { .level_input_count = 2, .pad_input_count = 2, .air_input_count = 2, + .phantom_count = 1, + .inputs_per_phantom = 2, .line_out_descrs = { "Headphones 1 L", @@ -649,6 +670,8 @@ static const struct scarlett2_device_info s18i8_gen3_info = { .level_input_count = 2, .pad_input_count = 2, .air_input_count = 4, + .phantom_count = 2, + .inputs_per_phantom = 2, .line_out_descrs = { "Monitor L", @@ -713,6 +736,8 @@ static const struct scarlett2_device_info s18i20_gen3_info = { .level_input_count = 2, .pad_input_count = 8, .air_input_count = 8, + .phantom_count = 2, + .inputs_per_phantom = 4, .line_out_descrs = { "Monitor 1 L", @@ -861,7 +886,9 @@ enum { SCARLETT2_CONFIG_PAD_SWITCH = 5, SCARLETT2_CONFIG_MSD_SWITCH = 6, SCARLETT2_CONFIG_AIR_SWITCH = 7, - SCARLETT2_CONFIG_COUNT = 8 + SCARLETT2_CONFIG_PHANTOM_SWITCH = 8, + SCARLETT2_CONFIG_PHANTOM_PERSISTENCE = 9, + SCARLETT2_CONFIG_COUNT = 10 }; /* Location, size, and activation command number for the configuration @@ -884,6 +911,12 @@ static const struct scarlett2_config [SCARLETT2_CONFIG_MSD_SWITCH] = { .offset = 0x04, .size = 8, .activate = 6 }, + [SCARLETT2_CONFIG_PHANTOM_PERSISTENCE] = { + .offset = 0x05, .size = 8, .activate = 6 }, + + [SCARLETT2_CONFIG_PHANTOM_SWITCH] = { + .offset = 0x06, .size = 8, .activate = 3 }, + [SCARLETT2_CONFIG_LEVEL_SWITCH] = { .offset = 0x08, .size = 1, .activate = 7 }, @@ -913,8 +946,14 @@ static const struct scarlett2_config [SCARLETT2_CONFIG_AIR_SWITCH] = { .offset = 0x8c, .size = 8, .activate = 8 }, + [SCARLETT2_CONFIG_PHANTOM_SWITCH] = { + .offset = 0x9c, .size = 1, .activate = 8 }, + [SCARLETT2_CONFIG_MSD_SWITCH] = { .offset = 0x9d, .size = 8, .activate = 6 }, + + [SCARLETT2_CONFIG_PHANTOM_PERSISTENCE] = { + .offset = 0x9e, .size = 8, .activate = 6 }, } }; /* proprietary request/response format */ @@ -1922,6 +1961,20 @@ static int scarlett2_update_input_other(struct usb_mixer_interface *mixer) return err; } + if (info->phantom_count) { + int err = scarlett2_usb_get_config( + mixer, SCARLETT2_CONFIG_PHANTOM_SWITCH, + info->phantom_count, private->phantom_switch); + if (err < 0) + return err; + + err = scarlett2_usb_get_config( + mixer, SCARLETT2_CONFIG_PHANTOM_PERSISTENCE, + 1, &private->phantom_persistence); + if (err < 0) + return err; + } + return 0; } @@ -2107,6 +2160,111 @@ static const struct snd_kcontrol_new scarlett2_air_ctl = { .put = scarlett2_air_ctl_put, }; +/*** Phantom Switch Controls ***/ + +static int scarlett2_phantom_ctl_get(struct snd_kcontrol *kctl, + struct snd_ctl_elem_value *ucontrol) +{ + struct usb_mixer_elem_info *elem = kctl->private_data; + struct usb_mixer_interface *mixer = elem->head.mixer; + struct scarlett2_data *private = mixer->private_data; + + mutex_lock(&private->data_mutex); + if (private->input_other_updated) + scarlett2_update_input_other(mixer); + ucontrol->value.integer.value[0] = + private->phantom_switch[elem->control]; + mutex_unlock(&private->data_mutex); + + return 0; +} + +static int scarlett2_phantom_ctl_put(struct snd_kcontrol *kctl, + struct snd_ctl_elem_value *ucontrol) +{ + struct usb_mixer_elem_info *elem = kctl->private_data; + struct usb_mixer_interface *mixer = elem->head.mixer; + struct scarlett2_data *private = mixer->private_data; + + int index = elem->control; + int oval, val, err = 0; + + mutex_lock(&private->data_mutex); + + oval = private->phantom_switch[index]; + val = !!ucontrol->value.integer.value[0]; + + if (oval == val) + goto unlock; + + private->phantom_switch[index] = val; + + /* Send switch change to the device */ + err = scarlett2_usb_set_config(mixer, SCARLETT2_CONFIG_PHANTOM_SWITCH, + index, val); + +unlock: + mutex_unlock(&private->data_mutex); + return err; +} + +static const struct snd_kcontrol_new scarlett2_phantom_ctl = { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "", + .info = snd_ctl_boolean_mono_info, + .get = scarlett2_phantom_ctl_get, + .put = scarlett2_phantom_ctl_put, +}; + +/*** Phantom Persistence Control ***/ + +static int scarlett2_phantom_persistence_ctl_get( + struct snd_kcontrol *kctl, struct snd_ctl_elem_value *ucontrol) +{ + struct usb_mixer_elem_info *elem = kctl->private_data; + struct scarlett2_data *private = elem->head.mixer->private_data; + + ucontrol->value.integer.value[0] = private->phantom_persistence; + return 0; +} + +static int scarlett2_phantom_persistence_ctl_put( + struct snd_kcontrol *kctl, struct snd_ctl_elem_value *ucontrol) +{ + struct usb_mixer_elem_info *elem = kctl->private_data; + struct usb_mixer_interface *mixer = elem->head.mixer; + struct scarlett2_data *private = mixer->private_data; + + int index = elem->control; + int oval, val, err = 0; + + mutex_lock(&private->data_mutex); + + oval = private->phantom_persistence; + val = !!ucontrol->value.integer.value[0]; + + if (oval == val) + goto unlock; + + private->phantom_persistence = val; + + /* Send switch change to the device */ + err = scarlett2_usb_set_config( + mixer, SCARLETT2_CONFIG_PHANTOM_PERSISTENCE, index, val); + +unlock: + mutex_unlock(&private->data_mutex); + return err; +} + +static const struct snd_kcontrol_new scarlett2_phantom_persistence_ctl = { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "", + .info = snd_ctl_boolean_mono_info, + .get = scarlett2_phantom_persistence_ctl_get, + .put = scarlett2_phantom_persistence_ctl_put, +}; + /*** Dim/Mute Controls ***/ static int scarlett2_dim_mute_ctl_get(struct snd_kcontrol *kctl, @@ -2270,6 +2428,7 @@ static int scarlett2_add_line_in_ctls(struct usb_mixer_interface *mixer) int err, i; char s[SNDRV_CTL_ELEM_ID_NAME_MAXLEN]; const char *fmt = "Line In %d %s Capture %s"; + const char *fmt2 = "Line In %d-%d %s Capture %s"; /* Add input level (line/inst) controls */ for (i = 0; i < info->level_input_count; i++) { @@ -2299,6 +2458,39 @@ static int scarlett2_add_line_in_ctls(struct usb_mixer_interface *mixer) return err; } + /* Add input phantom controls */ + if (info->inputs_per_phantom == 1) { + for (i = 0; i < info->phantom_count; i++) { + snprintf(s, sizeof(s), fmt, i + 1, + "Phantom Power", "Switch"); + err = scarlett2_add_new_ctl( + mixer, &scarlett2_phantom_ctl, + i, 1, s, &private->phantom_ctls[i]); + if (err < 0) + return err; + } + } else if (info->inputs_per_phantom > 1) { + for (i = 0; i < info->phantom_count; i++) { + int from = i * info->inputs_per_phantom + 1; + int to = (i + 1) * info->inputs_per_phantom; + + snprintf(s, sizeof(s), fmt2, from, to, + "Phantom Power", "Switch"); + err = scarlett2_add_new_ctl( + mixer, &scarlett2_phantom_ctl, + i, 1, s, &private->phantom_ctls[i]); + if (err < 0) + return err; + } + } + if (info->phantom_count) { + err = scarlett2_add_new_ctl( + mixer, &scarlett2_phantom_persistence_ctl, 0, 1, + "Phantom Power Persistence Capture Switch", NULL); + if (err < 0) + return err; + } + return 0; } @@ -2927,6 +3119,9 @@ static void scarlett2_notify_input_other( for (i = 0; i < info->air_input_count; i++) snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE, &private->air_ctls[i]->id); + for (i = 0; i < info->phantom_count; i++) + snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE, + &private->phantom_ctls[i]->id); } /* Interrupt callback */