Re: [PATCH v2] fdc/i8257: implement verify transfer mode

2019-11-01 Thread John Snow
On 11/1/19 6:54 AM, Hervé Poussineau wrote: > Le 30/10/2019 à 09:28, Sven Schnelle a écrit : >> While working on the Tulip driver i tried to write some Teledisk >> images to >> a floppy image which didn't work. Turned out that Teledisk checks the >> written >> data by issuing a READ command to t

Re: [PATCH v2] fdc/i8257: implement verify transfer mode

2019-11-01 Thread Hervé Poussineau
Le 30/10/2019 à 09:28, Sven Schnelle a écrit : While working on the Tulip driver i tried to write some Teledisk images to a floppy image which didn't work. Turned out that Teledisk checks the written data by issuing a READ command to the FDC but running the DMA controller in VERIFY mode. As we ig

[PATCH v2] fdc/i8257: implement verify transfer mode

2019-10-30 Thread Sven Schnelle
While working on the Tulip driver i tried to write some Teledisk images to a floppy image which didn't work. Turned out that Teledisk checks the written data by issuing a READ command to the FDC but running the DMA controller in VERIFY mode. As we ignored the DMA request in that case, the DMA trans