{"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\/cs\/blog\/news\/%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":"Dostupn\u00e9ho Sound Open Firmware 2.0, soubor otev\u0159en\u00fdch firmwar\u016f pro DSP \u010dipy","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Byla vyd\u00e1na verze projektu Sound Open Firmware 2.0 (SOF), kter\u00fd byl p\u016fvodn\u011b vytvo\u0159en spole\u010dnost\u00ed Intel s c\u00edlem p\u0159estat dod\u00e1vat uzav\u0159en\u00e9 firmwary pro DSP \u010dipy ur\u010den\u00e9 k zpracov\u00e1n\u00ed zvuku. Projekt byl n\u00e1sledn\u011b p\u0159eveden pod z\u00e1\u0161titu organizace Linux Foundation a nyn\u00ed se vyv\u00edj\u00ed s pomoc\u00ed komunity a za \u00fa\u010dasti spole\u010dnost\u00ed AMD, Google a NXP. V r\u00e1mci projektu se vyv\u00edj\u00ed SDK pro zjednodu\u0161en\u00ed v\u00fdvoje firmwaru, zvukov\u00fd ovlada\u010d pro j\u00e1dro Linux a sada hotov\u00fdch firmwar\u016f pro r\u016fzn\u00e9 DSP \u010dipy, pro kter\u00e9 jsou tak\u00e9 vytv\u00e1\u0159eny bin\u00e1rn\u00ed bal\u00ed\u010dky opat\u0159en\u00e9 digit\u00e1ln\u00edm podpisem. K\u00f3d firmwaru je naps\u00e1n v jazyce C s assemblerov\u00fdmi vlo\u017ekami a je distribuov\u00e1n pod licenc\u00ed BSD.      <\/p>\n<p>D\u00edky modul\u00e1rn\u00ed struktu\u0159e m\u016f\u017ee b\u00fdt Sound Open Firmware portov\u00e1n na r\u016fzn\u00e9 architektury DSP a hardwarov\u00e9 platformy. Nap\u0159\u00edklad mezi podporovan\u00fdmi platformami je uvedena podpora r\u016fzn\u00fdch \u010dip\u016f Intel (Broadwell, Icelake, Tigerlake, Alderlake atd.), Mediatek (mt8195), NXP (i.MX8*) a AMD (Renoir), vybaven\u00fdch DSP na b\u00e1zi architektur Xtensa HiFi 2, 3 a 4. B\u011bhem v\u00fdvoje m\u016f\u017ee b\u00fdt pou\u017eit speci\u00e1ln\u00ed emul\u00e1tor nebo QEMU. Pou\u017eit\u00ed otev\u0159en\u00fdch firmwar\u016f pro DSP umo\u017e\u0148uje rychlej\u0161\u00ed opravu a diagnostiku probl\u00e9m\u016f ve firmwaru, a tak\u00e9 d\u00e1v\u00e1 u\u017eivatel\u016fm mo\u017enost p\u0159izp\u016fsobit firmwary sv\u00fdm pot\u0159eb\u00e1m, prov\u00e1d\u011bt specifick\u00e9 optimalizace a vytv\u00e1\u0159et lehk\u00e9 varianty firmwar\u016f, kter\u00e9 obsahuj\u00ed pouze pot\u0159ebnou funk\u010dnost pro produkt.     <\/p>\n<p>Projekt poskytuje r\u00e1mec pro v\u00fdvoj, optimalizaci a testov\u00e1n\u00ed \u0159e\u0161en\u00ed souvisej\u00edc\u00edch se zpracov\u00e1n\u00edm zvuku, stejn\u011b jako pro vytv\u00e1\u0159en\u00ed ovlada\u010d\u016f a program\u016f pro interakci s DSP. Sou\u010d\u00e1st\u00ed jsou implementace firmwar\u016f, n\u00e1stroje pro testov\u00e1n\u00ed firmwar\u016f, utility pro p\u0159evod ELF soubor\u016f na obrazy firmwar\u016f vhodn\u00e9 pro instalaci na za\u0159\u00edzen\u00ed, ladic\u00ed n\u00e1stroje, emul\u00e1tor DSP, emul\u00e1tor hostitelsk\u00e9 platformy (na b\u00e1zi QEMU), n\u00e1stroje pro sledov\u00e1n\u00ed firmwar\u016f, skripty na MATLAB\/Octave pro jemn\u00e9 lad\u011bn\u00ed koeficient\u016f pro zvukov\u00e9 komponenty, aplikace pro organizaci interakce a v\u00fdm\u011bny dat s firmwarem a hotov\u00e9 p\u0159\u00edklady topologi\u00ed zpracov\u00e1n\u00ed zvuku.    <center><img decoding=\"async\" alt=\"Dostupn\u00e9ho Sound Open Firmware 2.0, soubor otev\u0159en\u00fdch firmwar\u016f pro DSP \u010dipy\" src=\"\/wp-content\/uploads\/2021\/12\/cbd63297ddb304c49acf8c2dc6c52033.jpg\" style=\"display:block;margin: 0 auto;\" \/><\/center>  <center><img decoding=\"async\" alt=\"Dostupn\u00e9ho Sound Open Firmware 2.0, soubor otev\u0159en\u00fdch firmwar\u016f pro DSP \u010dipy\" src=\"\/wp-content\/uploads\/2021\/12\/30f4060633291e9bb773e1426f100d95.jpg\" style=\"display:block;margin: 0 auto;\" \/><\/center>    <\/p>\n<p>Projekt vyv\u00edj\u00ed tak\u00e9 univerz\u00e1ln\u00ed ovlada\u010d, kter\u00fd lze pou\u017e\u00edt s za\u0159\u00edzen\u00edmi pou\u017e\u00edvaj\u00edc\u00edmi firmwary zalo\u017een\u00e9 na Sound Open Firmware. Ovlada\u010d je ji\u017e sou\u010d\u00e1st\u00ed j\u00e1dra Linuxu od verze 5.2 a je dod\u00e1v\u00e1n pod dvojn\u00ed licenci \u2014 BSD a GPLv2. Ovlada\u010d zaji\u0161\u0165uje na\u010d\u00edt\u00e1n\u00ed firmwaru do pam\u011bti DSP, na\u010d\u00edt\u00e1n\u00ed zvukov\u00fdch topologi\u00ed do DSP, organizaci pr\u00e1ce se zvukov\u00fdm za\u0159\u00edzen\u00edm (odpov\u00edd\u00e1 za p\u0159\u00edstup k funkc\u00edm DSP z aplikac\u00ed) a poskytuje p\u0159\u00edstupov\u00e9 body pro aplikace k zvukov\u00fdm dat\u016fm. Ovlada\u010d tak\u00e9 poskytuje mechanismus IPC pro interakci mezi hostitelsk\u00fdm syst\u00e9mem a DSP a vrstvu pro p\u0159\u00edstup k hardwarov\u00fdm schopnostem DSP prost\u0159ednictv\u00edm typov\u00e9ho API. DSP s firmwarem Sound Open Firmware vypad\u00e1 pro aplikace jako b\u011b\u017en\u00e9 za\u0159\u00edzen\u00ed ALSA, jeho\u017e \u0159\u00edzen\u00ed lze prov\u00e1d\u011bt prost\u0159ednictv\u00edm standardn\u00edho programovac\u00edho rozhran\u00ed.    <center><img decoding=\"async\" alt=\"Dostupn\u00e9ho Sound Open Firmware 2.0, soubor otev\u0159en\u00fdch firmwar\u016f pro DSP \u010dipy\" src=\"\/wp-content\/uploads\/2021\/12\/71f01f530f5dae5bf40b26fd9196e4af.jpg\" style=\"display:block;margin: 0 auto;\" \/><\/center>      <\/p>\n<p>Kl\u00ed\u010dov\u00e9 novinky ve Sound Open Firmware 2.0:  <\/p>\n<ul>\n<li class=\"l\"> Byla v\u00fdrazn\u011b zv\u00fd\u0161ena v\u00fdkonnost funkc\u00ed kop\u00edrov\u00e1n\u00ed zvukov\u00fdch dat a sn\u00ed\u017eeno mno\u017estv\u00ed operac\u00ed p\u0159\u00edstupu k pam\u011bti. V n\u011bkter\u00fdch sc\u00e9n\u00e1\u0159\u00edch zpracov\u00e1n\u00ed zvuku do\u0161lo ke sn\u00ed\u017een\u00ed z\u00e1t\u011b\u017ee o 40 % p\u0159i zachov\u00e1n\u00ed p\u0159edchoz\u00ed kvality zvuku.\n<li class=\"l\"> Byla zv\u00fd\u0161ena stabilita provozu na v\u00edcejadrov\u00fdch platform\u00e1ch Intel (cAVS), v\u010detn\u011b zaji\u0161t\u011bn\u00ed podpory spu\u0161t\u011bn\u00ed zpracovatel\u016f na libovoln\u00e9m j\u00e1d\u0159e DSP.\n<li class=\"l\"> Pro platformu Apollo Lake (APL) byla jako z\u00e1klad firmwaru pou\u017eita prost\u0159ed\u00ed Zephyr RTOS m\u00edsto XTOS. \u00darove\u0148 integrace OS Zephyr dos\u00e1hla parity v funkcionalit\u011b pro n\u011bkter\u00e9 platformy Intel. Pou\u017eit\u00ed Zephyr umo\u017e\u0148uje v\u00fdrazn\u011b zjednodu\u0161it a zkr\u00e1tit k\u00f3d aplikac\u00ed Sound Open Firmware.\n<li class=\"l\"> Byla implementov\u00e1na mo\u017enost pou\u017eit\u00ed protokolu IPC4 pro z\u00e1kladn\u00ed podporu zachycen\u00ed a reprodukce zvuku na n\u011bkter\u00fdch za\u0159\u00edzen\u00edch Tiger Lake (TGL) s OS Windows (podpora IPC4 umo\u017e\u0148uje interakci s DSP na z\u00e1klad\u011b firmwaru Sound Open Firmware bez pou\u017eit\u00ed specifick\u00e9ho ovlada\u010de).  <\/ul>\n<p>Zdroj: <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-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.3 - 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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