From mboxrd@z Thu Jan 1 00:00:00 1970 From: Takashi Iwai Subject: Re: [alsa-devel] HDMI codec, way forward? Date: Wed, 21 Oct 2015 15:41:44 +0200 Message-ID: References: <5620EE2F.8070504@metafoo.de> <20151016133717.GI32532@n2100.arm.linux.org.uk> <20151018150834.GP27370@localhost> <20151018152048.GT32532@n2100.arm.linux.org.uk> <20151018161329.GV27370@localhost> <20151018171641.GV32532@n2100.arm.linux.org.uk> <20151020033809.GZ27370@localhost> <20151020080800.GU32532@n2100.arm.linux.org.uk> <20151020140148.GC27370@localhost> <20151021092744.GC32532@n2100.arm.linux.org.uk> Mime-Version: 1.0 (generated by SEMI 1.14.6 - "Maruoka") Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: <20151021092744.GC32532@n2100.arm.linux.org.uk> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" To: Russell King - ARM Linux Cc: alsa-devel@alsa-project.org, Vinod Koul , tomi.valkeinen@ti.com, Arnaud Pouliquen , lgirdwood@gmail.com, dri-devel@lists.freedesktop.org, peter.ujfalusi@ti.com, broonie@kernel.org, Jyri Sarha List-Id: alsa-devel@alsa-project.org T24gV2VkLCAyMSBPY3QgMjAxNSAxMToyNzo0NCArMDIwMCwKUnVzc2VsbCBLaW5nIC0gQVJNIExp bnV4IHdyb3RlOgo+IAo+IE9uIFR1ZSwgT2N0IDIwLCAyMDE1IGF0IDA3OjMxOjQ4UE0gKzA1MzAs IFZpbm9kIEtvdWwgd3JvdGU6Cj4gPiBPbiBUdWUsIE9jdCAyMCwgMjAxNSBhdCAwOTowODowMEFN ICswMTAwLCBSdXNzZWxsIEtpbmcgLSBBUk0gTGludXggd3JvdGU6Cj4gPiA+ID4gPiBDdXJyZW50 bHkgaTkxNS9hdWRpbyBjb21wb25lbnQgd29ya3MgYXMgeW91IGRlc2NyaWJlZC4gIFRoZSBhdWRp byBpcwo+ID4gPiA+ID4gb3B0aW9uYWwgYW5kIEhETUkgZ3JhcGhpY3Mgd29ya3Mgd2l0aG91dCBh dWRpbywgd2hpbGUgSERNSSBIRC1hdWRpbwo+ID4gPiA+ID4gbWFuZGF0ZXMgaTkxNSBncmFwaGlj cy4KPiA+ID4gPiAKPiA+ID4gPiBSaWdodCwgYnV0IHdlIGFsc28gYWRkIGFkZGl0aW9uYWwgaW50 ZXJmYWNlIG9uIHRvcCBvZiB0aGlzIHRvIGFsbG93Cj4gPiA+ID4gdGhpbmdzIGxpa2UgZW5zdXJp bmcgZGlzcGxheSBpcyBvbiB3aGVuIGF1ZGlvIHdhbnRzIHRvIHJ1biBhbmQgbm93Cj4gPiA+ID4g bm90aWZpY2F0aW9uIGZvciBldmVudHMuCj4gPiA+ID4gCj4gPiA+ID4gSSBkb24ndCBzZWUgYSBy ZWFzb24gd2h5IHRoaXMgY2FuIGJlIHVzZWQgYXMgc2luZ2xlIGludGVyZmFjZSB0byBiaW5kIGFz Cj4gPiA+ID4gd2VsbCBhcyB0YWxrIHRvIGRpc3BsYXkgZnJvbSB2YXJpb3VzIGNvbXBvbmVudHMs IHVubGVzcyBJIG1pc3NlZCBvYnZpb3VzCj4gPiA+ID4gd2hpY2ggcHJldmVudCB1cyBmcm9tIGRv aW5nIHRoaXMgaW4gbm9uIGk5MTUgY2FzZXMuLi4KPiA+ID4gCj4gPiA+IE1heWJlIEkgY2FuIGNv bW1lbnQgbW9yZSBzcGVjaWZpY2FsbHkgaWYgSSBzYXcgdGhlIGNvZGUuICBSaWdodCBub3cgYWxs Cj4gPiA+IEknbSBhd2FyZSBvZiBpcyB0aGlzIGlkZWEgd2l0aG91dCBhbnkgY29kZSwgYW5kIEkg ZG9uJ3QgbGlrZSBpdC4KPiA+IAo+ID4gT2ssIGkgd2lsbCBiZSBwb3N0IG15IHBhdGNoZXMgdG9t b3Jyb3cuIEZXSVcgdXNlcyBpbnRlcmZhY2UgaW4KPiA+IHNvdW5kL2hkYS9oZGFjX2k5MTUuYyBm b3IgZGlzcGxheSBwb3dlciB1cC9kb3duCj4gCj4gVGhpczoKPiAKPiAgICAgICAgIGNvbXBvbmVu dF9tYXRjaF9hZGQoZGV2LCAmbWF0Y2gsIGhkYWNfY29tcG9uZW50X21hc3Rlcl9tYXRjaCwgYnVz KTsKPiAgICAgICAgIHJldCA9IGNvbXBvbmVudF9tYXN0ZXJfYWRkX3dpdGhfbWF0Y2goZGV2LCAm aGRhY19jb21wb25lbnRfbWFzdGVyX29wcywKPiAgICAgICAgICAgICAgICAgICAgICAgICAgICAg ICAgICAgICAgICAgICAgICAgbWF0Y2gpOwo+ICAgICAgICAgaWYgKHJldCA8IDApCj4gICAgICAg ICAgICAgICAgIGdvdG8gb3V0X2VycjsKPiAKPiAgICAgICAgIC8qCj4gICAgICAgICAgKiBBdG0s IHdlIGRvbid0IHN1cHBvcnQgZGVmZXJyaW5nIHRoZSBjb21wb25lbnQgYmluZGluZywgc28gbWFr ZSBzdXJlCj4gICAgICAgICAgKiBpOTE1IGlzIGxvYWRlZCBhbmQgdGhhdCB0aGUgYmluZGluZyBz dWNjZXNzZnVsbHkgY29tcGxldGVzLgo+ICAgICAgICAgICovCj4gICAgICAgICByZXF1ZXN0X21v ZHVsZSgiaTkxNSIpOwo+IAo+ICAgICAgICAgaWYgKCFhY29tcC0+b3BzKSB7Cj4gICAgICAgICAg ICAgICAgIHJldCA9IC1FTk9ERVY7Cj4gICAgICAgICAgICAgICAgIGdvdG8gb3V0X21hc3Rlcl9k ZWw7Cj4gICAgICAgICB9Cj4gCj4gaXMgcmVhbGx5IG5vdCBuaWNlLgoKWWVhaCwgYWRtaXR0ZWRs eSBpdCdzIGEgcmVhbGx5IHVnbHkgd29ya2Fyb3VuZC4gIEl0J3MgY29kZWQgaW4gdGhhdAp3YXkg anVzdCB0byBtYWtlIG91ciBsaXZlcyBlYXNpZXI6IGl0IHdvcmtzIHdlbGwgaW4gbW9zdCBjYXNl cyBmb3IKaTkxNSAvIGhkLWF1ZGlvLgoKQWN0dWFsbHksIGl0J3MgZWFzeSB0byBtb2RpZnkgdGhl IGhkYSBjb2RlIGluIHRoZSByaWdodCB3YXksIGkuZS4gdG8KZGVmZXIgdmlhIGNvbXBvbmVudCBi aW5kIG9wcy4gIEhvd2V2ZXIsIG9uZSBkcmF3YmFjayBpcyB0aGF0IGl0J3Mgbm90CnRyaXZpYWwg dG8gaGFuZGxlIHRoZSBmYWxsYmFjayBjYXNlOyBuYW1lbHksIEhELWF1ZGlvIG1pZ2h0IG5vdCBu ZWVkCmk5MTUgYmluZGluZywgZGVwZW5kaW5nIG9uIHRoZSBjaGlwIG1vZGVsIGFuZCB0aGUgY29u ZmlndXJhdGlvbi4KCkJyYXN3ZWxsIGFuZCBTa3lsYWtlIGhhdmUgYSAodmlydHVhbGx5KSBzaW5n bGUgYXVkaW8gY29udHJvbGxlciBhcwpkZWZhdWx0LCBhbmQgdGhpcyBtYW5hZ2VzIGJvdGggdGhl IGFuYWxvZyBhbmQgSERNSS9EUCBjb2RlY3MuICBUaGUKaTkxNSBpbnRlcmFjdGlvbiBpcyByZXF1 aXJlZCBvbmx5IGZvciB0aGUgbGF0dGVyIGNvZGVjcywgYW5kIHRodXMgZm9yCnRoZSBmb3JtZXIs IGl0J3Mgb3B0aW9uYWwuICBJZiB3ZSBkZWZlciBiaW5kaW5nLCB0aGUgaW5zdGFudGlhdGlvbgp3 b24ndCBoYXBwZW4gdW5sZXNzIGl0J3MgYm91bmQgd2l0aCBpOTE1LiAgU28sIGlmIGk5MTUgaXNu J3QKaW5pdGlhbGl6ZWQgKGUuZy4gYnkgYm9vdGluZyB3aXRoIG5vbW9kZXNldCBvcHRpb24pLCB0 aGUgd2hvbGUgYXVkaW8Kd2lsbCBiZSBnb25lLCB0b28uICBPVE9ILCBIYXN3ZWxsIGFuZCBCcmFz d2VsbCBoYXZlIGEgZGVkaWNhdGVkIEhEQQpjb250cm9sbGVyIGZvciBIRE1JL0RQLCBhbmQgdGhl eSBtdXN0IGJlIGRpc2FibGVkIChvciBmYWlsKSB1bmxlc3MKYm91bmQgd2l0aCBncmFwaGljcy4K Ckl0J3MgYSBjb3JuZXIgY2FzZSwgc28gd2UgbWlnaHQgYmV0dGVyIGlnbm9yZSB0aGlzLiAgQnV0 IGl0J2QgYmUKY2VydGFpbmx5IGEgInJlZ3Jlc3Npb24iIC0tIGF0IGxlYXN0LCBJIHVzZWQgdG8g dGVzdCB0aGlzIGluIHRoYXQgd2F5CnNvbWV0aW1lcyBpbiB0aGUgcGFzdC4gIFNvIGl0IHJlbWFp bnMgaW4gdGhlIGN1cnJlbnQgd2F5IGFzIGlzLgoKSXQncyBvbmUgb2YgdGhlIHJlYXNvbnMgSSBt ZW50aW9uZWQgaXQgYmVpbmcgYSBzdG9wIGdhcC4gIEJ1dCwgSSB0aGluawp0aGUgY29uY2VwdCwg cGFzc2luZyBvcHMgdmlhIGNvbXBvbmVudCwgaXMgYWN0dWFsbHkgd29ya2luZywgYW5kCnNob3Vs ZCBiZSBhcHBsaWNhYmxlIHRvIG90aGVyIGRybS9hdWRpbyBkcml2ZXJzLiAgVGhhdCdzIHRoZSBw b2ludC4KCgp0aGFua3MsCgpUYWthc2hpCgo+IAo+IFRoZSB3aG9sZSBwb2ludCBvZiB0aGUgY29t cG9uZW50IGhlbHBlciBpcyB0aGF0IHlvdSBkb24ndCBjYXJlIHdoZW4gdGhlCj4gc2xhdmVzIGNv bWUgYWxvbmcuICBUaGUgYWJvdmUgY29kZSBkb2VzIGNhcmUgYWJvdXQgdGhhdCwgYmVjYXVzZSBp dAo+IGV4cGVjdHMgdGhhdCB0aGUgbWFzdGVyIGFuZCBzbGF2ZXMgd2lsbCBiZSBib3VuZCBlaXRo ZXIgaW5zaWRlCj4gY29tcG9uZW50X21hc3Rlcl9hZGRfd2l0aF9tYXRjaCgpLCBvciB2aWEgdGhh dCByZXF1ZXN0X21vZHVsZSAod2hpY2gKPiBtYXkgaGFwcGVuIGFzeW5jaHJvbm91c2x5KSBhbmQg ZW5kcyB1cCBzZXR0aW5nIC0+b3BzLgo+IAo+IFRoaXMgd29uJ3Qgd29yayBmb3Igc3lzdGVtcyBp biB0aGUgcHJlc2VuY2Ugb2YgZGVmZXJyZWQgcHJvYmluZywgc2luY2UKPiB0aGVyZSdzIG9ubHkg YSB3ZWFrIGNvbm5lY3Rpb24gYmV0d2VlbiBsb2FkaW5nIGEgbW9kdWxlIGFuZCB0aGUgZHJpdmVy Cj4gc3VjY2Vzc2Z1bGx5IHByb2JpbmcgaXRzIGRldmljZS4KPiAKPiBJZiB5b3UgYXJyYW5nZSBm b3IgdGhlIGF1ZGlvIGRldmljZSB0byBmaW5pc2ggcHJvYmluZyBpbiB0aGUgbWFzdGVyJ3MKPiBi aW5kIGNhbGxiYWNrLCB0aGF0IHdvdWxkIGJlIF9mYXJfIGJldHRlciwgYW5kIHdvdWxkIGJlIGlu IGxpbmUgd2l0aAo+IGhvdyB0aGUgY29tcG9uZW50IGhlbHBlciBpcyBzdXBwb3NlZCB0byB3b3Jr LiAgSXQgYWxzbyBtZWFucyB0aGF0IGlmCj4geW91ciBzbGF2ZSAodGhlIHZpZGVvIHNpZGUpIGdv ZXMgYXdheSwgeW91J2xsIGtub3cgYWJvdXQgaXQgYXMgdGhlCj4gdW5iaW5kIGNhbGxiYWNrIHdp bGwgYmUgY2FsbGVkIChhdCB3aGljaCBwb2ludCB5b3Ugc2hvdWxkIHRlYXIgZG93bgo+IHRoZSBh dWRpbyBkZXZpY2UuKQo+IAo+IEhvd2V2ZXIsIHRoZXJlJ3MgYSBsdXJraW5nIHByb2JsZW06IHlv dSBjYW4ndCByZWdpc3RlciB0aGUgc2FtZSBzdHJ1Y3QKPiBkZXZpY2UgYXMgYSBzbGF2ZSBtb3Jl IHRoYW4gb25jZSBpbnRvIHRoZSBjb21wb25lbnQgaGVscGVycyAtIHRoYXQncwo+IGJlY2F1c2Ug aXQncyBkZXNpZ25lZCB0byBsb29rIGZvciBkZXZpY2VzLiAgVGhlcmUncyBpbnRlbnRpb25hbGx5 IG5vCj4gbGlua2FnZSBiZXR3ZWVuIHRoZSBzbGF2ZSBvcHMgYW5kIG1hc3RlciBvcHMgdG8gYWxs b3cgZm9yIGdlbmVyaWMKPiBzbGF2ZSBkcml2ZXJzIChsaWtlIHRkYTk5OHgpIHRvIGJlIHVzZWQg d2l0aCBkaWZmZXJlbnQgbWFzdGVyIGRyaXZlcnMKPiAoYXJtYWRhLCB0aWxjZGMsIGV0YykuICBJ biB0aGVvcnksIHlvdSBjYW4gcmVnaXN0ZXIgdGhlIG1hc3RlciBkZXZpY2UKPiBvZiBvbmUgY29t cG9uZW50aXNlZCBzeXN0ZW0gYXMgYSBzbGF2ZSBkZXZpY2Ugb2YgYW5vdGhlciwgYnV0IHRoYXQK PiByZXF1aXJlcyBhIG11Y2ggbW9yZSBjb21wbGljYXRlZCBsb2NraW5nIHNldHVwIGluIGNvbXBv bmVudC5jIChJIGhhdmUKPiBwYXRjaGVzIGZvciB0aGF0LCBidXQgSSd2ZSByZXNpc3RlZCBzZW5k aW5nIHRoZW0gYmVjYXVzZSBpdCBtYWtlcyB0aGUKPiBsb2NraW5nIHZlcnkgbWVzc3kuKQo+IAo+ IC0tIAo+IEZUVEMgYnJvYWRiYW5kIGZvciAwLjhtaWxlIGxpbmU6IGN1cnJlbnRseSBhdCA5LjZN YnBzIGRvd24gNDAwa2JwcyB1cAo+IGFjY29yZGluZyB0byBzcGVlZHRlc3QubmV0Lgo+IApfX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwpkcmktZGV2ZWwgbWFp bGluZyBsaXN0CmRyaS1kZXZlbEBsaXN0cy5mcmVlZGVza3RvcC5vcmcKaHR0cDovL2xpc3RzLmZy ZWVkZXNrdG9wLm9yZy9tYWlsbWFuL2xpc3RpbmZvL2RyaS1kZXZlbAo=