jmp@mult.UUCP (Jean.Marc Pigeon) (11/11/87)
Bonjour a tous ("hello netland" :-}) As my system was "sick", I lost all answers I get about my first request on AT driver trouble. Thanks to those who answer. In the midtime I work on the driver problems and I spot 3 bugs. first problem: - After a short while (in writing acces), the hard disk hang, and just a reboot could recover it. - I found that in "w_transfer" , the test to see if the controler is ready to accept data, used a local variable with no initiale value (so sometime...). The correct line (229) is for (i=0,r=0;i<MAX_WIN_RETRY && (r&8)==0;i++) port_in(WIN_REG8,&r); At this point the driver was able to reset in case of error: Second problem: - Each time I try to acces sector 11 on head 4 (whatever the cylinder number), the controler report "ERROR". - In "w_init" the command[6] parameter is set to a wrong value (alway 1). The correct line (297 / 313 ) is: command[6] = wini[0].wn_heads | 0xa0; (same correction for disk 1) At this point I was able to acces all the partition without bad spots. Third problem: - If the "h" command is not use before "=" then the hard-disk stay 'invisible'. - "init_params" is not reseting the controler prior to set the parameters. the correct line (443) is: if ((nr_drives >0 ) && (w_reset() != OK ) nr_drives = 0; At this point: It seems working perfectly, except the hard-disk fsck report error on the file structure, I wonder why? So that's all for now. I hope that will be helpfull to somebody. JMP NB: All the line number I gave; stand for at_wini 1.1, I don't know if the problems are the same in the XT driver. PS: If somebody could tell me where I can find the 1.2 diff, I'll be glad.