Date: Sat, 2 Nov 2019 17:10:13 +0100 From: Gary Jennejohn <gljennjohn@gmail.com> To: Warner Losh <imp@bsdimp.com> Cc: Gleb Popov <arrowd@freebsd.org>, Dirk-Willem van Gulik <dirkx@webweaving.org>, freebsd-hackers <freebsd-hackers@freebsd.org> Subject: Re: A bounty of 450 (was $100) for rtsx SD card reader driver. Message-ID: <20191102171013.67322f23@ernst.home> In-Reply-To: <CANCZdfoh01ZiD15ySW9c4xfF470-arLe=UPA%2BvAfHTpcPUKvgw@mail.gmail.com> References: <CALH631k4gefPshr1nJM213FwfP0QgQhZ=s1U32ejMLSW42e3qw@mail.gmail.com> <CALH631=8tSCfHcT3Fhu7gC9LSx-pA1M57Ae=NPuaRRhAp1zZdA@mail.gmail.com> <9C97A802-A542-44B3-A295-79CCF70BF8D2@webweaving.org> <20191102082641.52f64cc8@ernst.home> <CALH631==Fgwvhq-B_vWXByNd4TUaW8Fh6Y=t=Lb9ML5%2BLGTt2Q@mail.gmail.com> <20191102115705.323376cd@ernst.home> <CANCZdfoh01ZiD15ySW9c4xfF470-arLe=UPA%2BvAfHTpcPUKvgw@mail.gmail.com>
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On Sat, 2 Nov 2019 09:27:26 -0600 Warner Losh <imp@bsdimp.com> wrote: > On Sat, Nov 2, 2019, 4:58 AM Gary Jennejohn <gljennjohn@gmail.com> wrote: > > > On Sat, 2 Nov 2019 11:54:01 +0400 > > Gleb Popov <arrowd@freebsd.org> wrote: > > > > > On Sat, Nov 2, 2019 at 11:26 AM Gary Jennejohn <gljennjohn@gmail.com> > > wrote: > > > > > > > On Fri, 1 Nov 2019 12:00:01 +0100 > > > > Dirk-Willem van Gulik <dirkx@webweaving.org> wrote: > > > > > > > > > On 1 Nov 2019, at 11:48, Gleb Popov <arrowd@freebsd.org> wrote: > > > > > > On Wed, Jun 19, 2019 at 10:22 AM Gleb Popov <arrowd@freebsd.org> > > > > wrote: > > > > > > > > > > >> I've posted a bounty for this bug: > > > > > >> https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=204521 > > > > > > > > > > > > In case anyone is interested, the bounty is $375 already. > > > > > > > > > > It is 450$ now. > > > > > > > > > > > > > This raises several questions: > > > > 1) which version(s) of FreeBSD? > > > > > > > > > > I'd be OK with CURRENT and MFH to 12 sometime. > > > > > > > I had commit bits (src, ports) at one time (gj@), but I gave them > > back several years ago. So, since you're a committer, you would > > have to sheperd the code into the tree. But as a ports committer > > that may not be so easy. > > > > > 2) how does a developer get his/her hands on a device which uses this > > > > controller? It is not reasonable to expect a developer will to buy a > > > > laptop or PCI card just to develop a driver. > > > > > > > > > > With that I cannot help, unfortunately. I can, however, test the code and > > > help with debugging. > > > > > > > Well, I've been developing drivers for 35 years and I can tell > > you that this approach would not too very practical. But it > > might work. > > > > I agree. > > > 3) what is the target environment? Laptop? PCI card? Some other > > > > device with an embedded controller? > > > > > > > > > > In my case it is an ASUS notebook. > > > > > > > I have 3 laptops but unfortunately none of them uses this > > controller. > > > > Maybe I can find a PCIe card with the controller. Would probably > > cost less than $450. > > > > Years ago I was told they were cards, but I couldn't find any. > Yeah, at one time DeLock sold Express and PCIe cards, but they're no longer available. Couldn't find any on eBay either. > I have started to get the proper scaffolding in place to drop > the bit from openbsd that frobs the hardware. But everything > about this port is an impedance mismatch. Busdma is different > and the mmc host adapter interface is different. It's far from > a simple drop in with minor tweaks. It's likely the reason > even a few hundred hasn't help expedite porting.... especially > since this is a rare part... > That's good. There's also a Linux driver and even one for MacOS. I'm now retired and don't have anything interesting to do since freelance work has sort of dried up. This port would help keep my brain healthy. The money's not that important. > I'd say we also need docs to make a proper go of it because > that too is usually needed... > Well, I couldn't find any docs after several google searches. Have to try harder, I guess. -- Gary Jennejohn
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