{"id":102785,"date":"2021-12-28T15:36:47","date_gmt":"2021-12-28T13:36:48","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/%d0%b4%d0%be%d1%81%d1%82%d1%83%d0%bf%d0%b5%d0%bd-sound-open-firmware-2-0-%d0%bd%d0%b0%d0%b1%d0%be%d1%80-%d0%be%d1%82%d0%ba%d1%80%d1%8b%d1%82%d1%8b%d1%85-%d0%bf%d1%80%d0%be%d1%88%d0%b8%d0%b2%d0%be"},"modified":"2021-12-28T15:36:47","modified_gmt":"2021-12-28T13:36:48","slug":"%d0%b4%d0%be%d1%81%d1%82%d1%83%d0%bf%d0%b5%d0%bd-sound-open-firmware-2-0-%d0%bd%d0%b0%d0%b1%d0%be%d1%80-%d0%be%d1%82%d0%ba%d1%80%d1%8b%d1%82%d1%8b%d1%85-%d0%bf%d1%80%d0%be%d1%88%d0%b8%d0%b2%d0%be","status":"publish","type":"post","link":"https:\/\/prohoster.info\/it\/blog\/novosti-interneta\/%d0%b4%d0%be%d1%81%d1%82%d1%83%d0%bf%d0%b5%d0%bd-sound-open-firmware-2-0-%d0%bd%d0%b0%d0%b1%d0%be%d1%80-%d0%be%d1%82%d0%ba%d1%80%d1%8b%d1%82%d1%8b%d1%85-%d0%bf%d1%80%d0%be%d1%88%d0%b8%d0%b2%d0%be","title":{"rendered":"\u00c8 disponibile il Sound Open Firmware 2.0, un set di firmware aperto per chip DSP.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>\u00c8 stata pubblicata la versione 2.0 del progetto Sound Open Firmware (SOF), originalmente creato da Intel per abbandonare la pratica della distribuzione di firmware chiusi per i chip DSP utilizzati nell'elaborazione audio. Successivamente, il progetto \u00e8 passato sotto l'ombrello della Linux Foundation ed \u00e8 ora sviluppato con il coinvolgimento della comunit\u00e0 e la partecipazione di aziende come AMD, Google e NXP. Il progetto include lo sviluppo di un SDK per semplificare la creazione di firmware, un driver audio per il kernel Linux e una serie di firmware pronti per vari chip DSP, per i quali vengono anche fornite build binarie certificate da firma digitale. Il codice del firmware \u00e8 scritto in linguaggio C con inserimenti in assembler e viene distribuito sotto licenza BSD.      <\/p>\n<p>Grazie alla sua struttura modulare, Sound Open Firmware pu\u00f2 essere portato su diverse architetture DSP e piattaforme hardware. Ad esempio, tra le piattaforme supportate figurano vari chip Intel (Broadwell, Icelake, Tigerlake, Alderlake, ecc.), Mediatek (mt8195), NXP (i.MX8*) e AMD (Renoir), dotati di DSP basati su architetture Xtensa HiFi 2, 3 e 4. Durante il processo di sviluppo, pu\u00f2 essere utilizzato un emulatore speciale o QEMU. L'uso di firmware open source per DSP consente di risolvere e diagnosticare rapidamente i problemi del firmware, oltre a offrire agli utenti la possibilit\u00e0 di adattare il firmware alle proprie esigenze, apportare ottimizzazioni specifiche e creare versioni leggere del firmware che contengano solo le funzionalit\u00e0 necessarie al prodotto.     <\/p>\n<p>Il progetto fornisce un framework per lo sviluppo, l'ottimizzazione e il collaudo di soluzioni legate all'elaborazione audio, oltre alla creazione di driver e software per interagire con DSP. Comprende implementazioni di firmware, strumenti per il collaudo del firmware, utility per la conversione di file ELF in immagini di firmware pronte per l'installazione sull'hardware, strumenti di debug, un emulatore DSP, un emulatore della piattaforma host (basato su QEMU), strumenti per la tracciatura del firmware, script in MATLAB\/Octave per la messa a punto dei coefficienti per i componenti audio, applicazioni per la gestione dell'interazione e dello scambio dati con il firmware, e esempi pronti di topologie per l'elaborazione audio.    <center><img decoding=\"async\" alt=\"\u00c8 disponibile il Sound Open Firmware 2.0, un set di firmware aperto per chip DSP.\" src=\"\/wp-content\/uploads\/2021\/12\/cbd63297ddb304c49acf8c2dc6c52033.jpg\" style=\"display:block;margin: 0 auto;\" \/><\/center>  <center><img decoding=\"async\" alt=\"\u00c8 disponibile il Sound Open Firmware 2.0, un set di firmware aperto per chip DSP.\" src=\"\/wp-content\/uploads\/2021\/12\/30f4060633291e9bb773e1426f100d95.jpg\" style=\"display:block;margin: 0 auto;\" \/><\/center>    <\/p>\n<p>Il progetto sta anche sviluppando un driver universale che pu\u00f2 essere utilizzato con dispositivi che utilizzano firmware basati su Sound Open Firmware. Questo driver \u00e8 gi\u00e0 incluso nel kernel Linux a partire dalla versione 5.2 ed \u00e8 fornito con doppia licenza \u2014 BSD e GPLv2. Il driver \u00e8 responsabile del caricamento del firmware nella memoria DSP, del caricamento delle topologie sonore nel DSP, dell'organizzazione del funzionamento del dispositivo audio (gestisce l'accesso alle funzioni DSP dalle applicazioni) e fornisce punti di accesso per le applicazioni ai dati audio. Inoltre, il driver offre un meccanismo IPC per l'interazione tra il sistema host e il DSP, insieme a uno strato per accedere alle funzionalit\u00e0 hardware del DSP tramite un'API standardizzata. Il DSP con firmware Sound Open Firmware appare alle applicazioni come un normale dispositivo ALSA, il cui controllo pu\u00f2 essere effettuato tramite l'interfaccia software standard.    <center><img decoding=\"async\" alt=\"\u00c8 disponibile il Sound Open Firmware 2.0, un set di firmware aperto per chip DSP.\" src=\"\/wp-content\/uploads\/2021\/12\/71f01f530f5dae5bf40b26fd9196e4af.jpg\" style=\"display:block;margin: 0 auto;\" \/><\/center>      <\/p>\n<p>Novit\u00e0 principali in Sound Open Firmware 2.0:  <\/p>\n<ul>\n<li class=\"l\"> Significativa miglioria nelle prestazioni delle funzioni di copia dei dati audio e riduzione delle operazioni di accesso alla memoria. In alcuni scenari di elaborazione audio, si registra una riduzione del carico fino al 40% mantenendo la qualit\u00e0 audio precedente.\n<li class=\"l\"> Stabilit\u00e0 operativa migliorata su piattaforme Intel multi-core (cAVS), compresa la possibilit\u00e0 di avviare gestori su qualsiasi core DSP.\n<li class=\"l\"> Per la piattaforma Apollo Lake (APL), l'ambiente Zephyr RTOS \u00e8 stato utilizzato come base per il firmware, invece di XTOS. Il livello di integrazione del sistema operativo Zephyr ha raggiunto la parit\u00e0 funzionale su alcune piattaforme Intel. L'uso di Zephyr consente di semplificare e ridurre significativamente il codice delle applicazioni Sound Open Firmware.\n<li class=\"l\"> Implementata la possibilit\u00e0 di utilizzare il protocollo IPC4 per il supporto base della cattura e riproduzione audio su alcuni dispositivi Tiger Lake (TGL) con sistema operativo Windows (il supporto di IPC4 consente l'interazione con DSP basati su firmware Sound Open Firmware senza la necessit\u00e0 di un driver specifico).  <\/ul>\n<p>Fonte: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=56420\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d \u0432\u044b\u043f\u0443\u0441\u043a \u043f\u0440\u043e\u0435\u043a\u0442\u0430 Sound Open Firmware 2.0 (SOF), \u0438\u0437\u043d\u0430\u0447\u0430\u043b\u044c\u043d\u043e \u0441\u043e\u0437\u0434\u0430\u043d\u043d\u043e\u0433\u043e \u043a\u043e\u043c\u043f\u0430\u043d\u0438\u0435\u0439 Intel \u0434\u043b\u044f \u0443\u0445\u043e\u0434\u0430 \u043e\u0442 \u043f\u0440\u0430\u043a\u0442\u0438\u043a\u0438 \u043f\u043e\u0441\u0442\u0430\u0432\u043a\u0438 \u0437\u0430\u043a\u0440\u044b\u0442\u044b\u0445 \u043f\u0440\u043e\u0448\u0438\u0432\u043e\u043a \u0434\u043b\u044f DSP-\u0447\u0438\u043f\u043e\u0432, \u0441\u0432\u044f\u0437\u0430\u043d\u043d\u044b\u0445 \u0441 \u043e\u0431\u0440\u0430\u0431\u043e\u0442\u043a\u043e\u0439 \u0437\u0432\u0443\u043a\u0430. \u0412\u043f\u043e\u0441\u043b\u0435\u0434\u0441\u0442\u0432\u0438\u0438 \u043f\u0440\u043e\u0435\u043a\u0442 \u0431\u044b\u043b \u043f\u0435\u0440\u0435\u0432\u0435\u0434\u0451\u043d \u043f\u043e\u0434 \u043a\u0440\u044b\u043b\u043e \u043e\u0440\u0433\u0430\u043d\u0438\u0437\u0430\u0446\u0438\u0438 Linux Foundation \u0438 \u0442\u0435\u043f\u0435\u0440\u044c \u0440\u0430\u0437\u0440\u0430\u0431\u0430\u0442\u044b\u0432\u0430\u0435\u0442\u0441\u044f \u0441 \u043f\u0440\u0438\u0432\u043b\u0435\u0447\u0435\u043d\u0438\u0435\u043c \u0441\u043e\u043e\u0431\u0449\u0435\u0441\u0442\u0432\u0430 \u0438 \u043f\u0440\u0438 \u0443\u0447\u0430\u0441\u0442\u0438\u0438 \u043a\u043e\u043c\u043f\u0430\u043d\u0438\u0439 AMD, Google \u0438 NXP. \u041f\u0440\u043e\u0435\u043a\u0442\u043e\u043c \u0440\u0430\u0437\u0432\u0438\u0432\u0430\u0435\u0442\u0441\u044f SDK \u0434\u043b\u044f \u0443\u043f\u0440\u043e\u0449\u0435\u043d\u0438\u044f \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0438 \u043f\u0440\u043e\u0448\u0438\u0432\u043e\u043a, [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":102786,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-102785","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-novosti-interneta"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u041e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d \u0432\u044b\u043f\u0443\u0441\u043a \u043f\u0440\u043e\u0435\u043a\u0442\u0430 Sound Open Firmware 2.0 (SOF), \u0438\u0437\u043d\u0430\u0447\u0430\u043b\u044c\u043d\u043e \u0441\u043e\u0437\u0434\u0430\u043d\u043d\u043e\u0433\u043e \u043a\u043e\u043c\u043f\u0430\u043d\u0438\u0435\u0439 Intel \u0434\u043b\u044f \u0443\u0445\u043e\u0434\u0430 \u043e\u0442 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Successivamente, il progetto \u00e8 stato trasferito sotto l'egida della Linux Foundation ed \u00e8 ora sviluppato con il supporto della comunit\u00e0 e la partecipazione di aziende come AMD, Google e NXP. 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