From mboxrd@z Thu Jan 1 00:00:00 1970 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: base64 Subject: [v2,1/3] usb: misc: add driver for FT232H based FPGA configuration devices From: Anatolij Gustschin Message-Id: <20181120154947.4dbc90d6@crub> Date: Tue, 20 Nov 2018 15:49:47 +0100 To: Trent Piepho Cc: "linux-spi@vger.kernel.org" , "linux-kernel@vger.kernel.org" , "linux-fpga@vger.kernel.org" , "linux-usb@vger.kernel.org" , "gregkh@linuxfoundation.org" , "broonie@kernel.org" , "atull@kernel.org" , "mdf@kernel.org" List-ID: T24gVHVlLCAyMCBOb3YgMjAxOCAwMDo1NjoxMyArMDAwMApUcmVudCBQaWVwaG8gdHBpZXBob0Bp bXBpbmouY29tIHdyb3RlOgoKPk9uIFR1ZSwgMjAxOC0xMS0yMCBhdCAwMToyOCArMDEwMCwgQW5h dG9saWogR3VzdHNjaGluIHdyb3RlOgo+PiBBZGQgVVNCIGludGVyZmFjZSBkcml2ZXIgZm9yIEFS UkkgRlBHQSBjb25maWd1cmF0aW9uIGRldmljZXMgYmFzZWQgb24KPj4gRlRESSBGVDIzMkggY2hp cC4gRGVwZW5kaW5nIG9uIFVTQiBQSUQgdGhlIGRyaXZlciByZWdpc3RlcnMgZGlmZmVyZW50Cj4+ IHBsYXRmb3JtIGRldmljZXMgZGVzY3JpYmluZyBhbiBGUEdBIGNvbmZpZ3VyYXRpb24gaW50ZXJm YWNlLiAgCj4KPklzIEFSUkkgZGlmZmVyZW50IHRoYW4gQXJyaWE/Cgp5ZXMsIEFSUkkgaXMgYSBj b21wYW55IG5hbWUuCgo+PiArLyogVXNlIGJhdWRyYXRlIGNhbGN1bGF0aW9uIGJvcnJvd2VkIGZy b20gbGliZnRkaSAqLwo+PiArc3RhdGljIGludCBmdGRpX3RvX2Nsa2JpdHMoaW50IGJhdWRyYXRl LCB1bnNpZ25lZCBpbnQgY2xrLCBpbnQgY2xrX2RpdiwgIAo+Cj5MaW51eCB1c2VzIHVuc2lnbmVk IHZhbHVlcyBmb3IgY2xvY2tzLiAgRG9lcyBpdCBtYWtlIGFueSBzZW5zZSB0byBtaXgKPnRoZSB1 bnNpZ25lZCBjbGsgd2l0aCBzaWduZWQgdmFsdWVzPyAgU2VlbXMgbGlrZSBiYXVkcmF0ZSBhbmQg Y2xrX2Rpdgo+c2hvdWxkIGFsc28gYmUgdW5zaWduZWQuCgpva2F5LCB3aWxsIGZpeCB0byB1bnNp Z25lZC4KCj4+ICsJCQkgICB1bnNpZ25lZCBsb25nICplbmNvZGVkX2Rpdmlzb3IpICAKPgo+dW5z aWduZWQgbG9uZyBpcyBhbiBvZGQgY2hvaWNlIGhlcmUuICBJcyB0aGVyZSBhbnkgdG8gcmVhc29u IHRvIHVzZSBhbgo+dW5zaWduZWQgbG9uZyB0byBzdG9yZSB0aGUgcmVzdWx0IG9mIHJpZ2h0IHNo aWZ0aW5nIGEgc2lnbmVkIGludAo+KGJlc3RfZGl2KT8gIEl0IGNhbid0IGJlIGxvbmdlciB0aGFu IGEgaW50LCBidXQgaXQgY2FuIGJlIG5lZ2F0aXZlLgoKb2theSwgSSdsbCBjaGFuZ2UgdGhhdCB0 byB1bnNpZ25lZCBpbnQuCgo+PiArewo+PiArCXN0YXRpYyBjb25zdCBjaGFyIGZyYWNfY29kZVs4 XSA9IHsgMCwgMywgMiwgNCwgMSwgNSwgNiwgNyB9Owo+PiArCWludCBiZXN0X2JhdWQgPSAwOwo+ PiArCWludCBkaXYsIGJlc3RfZGl2Owo+PiArCj4+ICsJaWYgKGJhdWRyYXRlID49IGNsayAvIGNs a19kaXYpIHsKPj4gKwkJKmVuY29kZWRfZGl2aXNvciA9IDA7Cj4+ICsJCWJlc3RfYmF1ZCA9IGNs ayAvIGNsa19kaXY7Cj4+ICsJfSBlbHNlIGlmIChiYXVkcmF0ZSA+PSBjbGsgLyAoY2xrX2RpdiAr IGNsa19kaXYgLyAyKSkgewo+PiArCQkqZW5jb2RlZF9kaXZpc29yID0gMTsKPj4gKwkJYmVzdF9i YXVkID0gY2xrIC8gKGNsa19kaXYgKyBjbGtfZGl2IC8gMik7Cj4+ICsJfSBlbHNlIGlmIChiYXVk cmF0ZSA+PSBjbGsgLyAoMiAqIGNsa19kaXYpKSB7Cj4+ICsJCSplbmNvZGVkX2Rpdmlzb3IgPSAy Owo+PiArCQliZXN0X2JhdWQgPSBjbGsgLyAoMiAqIGNsa19kaXYpOwo+PiArCX0gZWxzZSB7Cj4+ ICsJCS8qCj4+ICsJCSAqIERpdmlkZSBieSAxNiB0byBoYXZlIDMgZnJhY3Rpb25hbCBiaXRzIGFu ZAo+PiArCQkgKiBvbmUgYml0IGZvciByb3VuZGluZwo+PiArCQkgKi8KPj4gKwkJZGl2ID0gY2xr ICogMTYgLyBjbGtfZGl2IC8gYmF1ZHJhdGU7Cj4+IAo+PiArCQlpZiAoZGl2ICYgMSkJLyogRGVj aWRlIGlmIHRvIHJvdW5kIHVwIG9yIGRvd24gKi8KPj4gKwkJCWJlc3RfZGl2ID0gZGl2IC8gMiAr IDE7Cj4+ICsJCWVsc2UKPj4gKwkJCWJlc3RfZGl2ID0gZGl2IC8gMjsgIAo+Cj5JbiBMaW51eCB3 ZSB3b3VsZCB3cml0ZToKPgo+YmVzdF9kaXYgPSBESVZfUk9VTkRfVVAoZGl2LCAyKTsKPgo+VGhv dWdoIEkgdGhpbmsgeW91IGNhbiBjb21iaW5lIHRoYXQgd2l0aCB0aGUgYWJvdmUgdG8gZ2V0Ogo+ Cj5iZXN0X2RpdiA9IERJVl9ST1VORF9DTE9TRVNUKGNsayAqIDggLyBjbGtfZGl2LCBiYXVkcmF0 ZSk7Cj4KPlRoYXQgd2hhdCB0aGUgYWJvdmUgaXMgdHJ5aW5nIHRvIGFjY29tcGxpc2ggaW4gYSBy b3VuZCBhYm91dCB3YXkKCndpbGwgcmV3b3JrIHRoaXMsIHRvby4gVGhhbmtzIGZvciBzdWdnZXN0 aW9ucy4KCj4+ICsJCWlmIChiZXN0X2RpdiA+IDB4MjAwMDApCj4+ICsJCQliZXN0X2RpdiA9IDB4 MWZmZmY7Cgo+TG9va3MgbGlrZSB0aGUgYWJvdmUgd2FzIHByb2JhYmx5IHN1cHBvc2VkIHRvIGJl ID49CgpJJ2xsIGNoZWNrIGl0LgoKPj4gKwkJYmVzdF9iYXVkID0gY2xrICogMTYgLyBjbGtfZGl2 IC8gYmVzdF9kaXY7Cj4+ICsJCWlmIChiZXN0X2JhdWQgJiAxKQkvKiBEZWNpZGUgaWYgdG8gcm91 bmQgdXAgb3IgZG93biAqLwo+PiArCQkJYmVzdF9iYXVkID0gYmVzdF9iYXVkIC8gMiArIDE7Cj4+ ICsJCWVsc2UKPj4gKwkJCWJlc3RfYmF1ZCA9IGJlc3RfYmF1ZCAvIDI7ICAKPgo+QWdhaW4sIGxv b2tzIGxpa2UgYSBjb21wbGljYXRlZCB3YXkgdG8gcm91bmQgdG8gdGhlIG5lYXJlc3QuCgp3aWxs IGNoYW5nZSB0aGlzLCB0b28uCgpUaGFua3MsCkFuYXRvbGlqCg==