projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| 9592d279 C |
1 | /* confhpup.c 6.1 83/07/29 */ |
| 2 | ||
| 3 | #include "../machine/pte.h" | |
| 4 | ||
| 5 | #include "../h/param.h" | |
| 6 | #include "../h/inode.h" | |
| 7 | #include "../h/fs.h" | |
| 8 | #include "saio.h" | |
| 9 | ||
| 10 | devread(io) | |
| 11 | register struct iob *io; | |
| 12 | { | |
| 13 | int cc; | |
| 14 | ||
| 15 | io->i_flgs |= F_RDDATA; | |
| 16 | io->i_error = 0; | |
| 17 | cc = (*devsw[io->i_ino.i_dev].dv_strategy)(io, READ); | |
| 18 | io->i_flgs &= ~F_TYPEMASK; | |
| 19 | return (cc); | |
| 20 | } | |
| 21 | ||
| 22 | devwrite(io) | |
| 23 | register struct iob *io; | |
| 24 | { | |
| 25 | int cc; | |
| 26 | ||
| 27 | io->i_flgs |= F_WRDATA; | |
| 28 | io->i_error = 0; | |
| 29 | cc = (*devsw[io->i_ino.i_dev].dv_strategy)(io, WRITE); | |
| 30 | io->i_flgs &= ~F_TYPEMASK; | |
| 31 | return (cc); | |
| 32 | } | |
| 33 | ||
| 34 | devopen(io) | |
| 35 | register struct iob *io; | |
| 36 | { | |
| 37 | ||
| 38 | (*devsw[io->i_ino.i_dev].dv_open)(io); | |
| 39 | } | |
| 40 | ||
| 41 | devclose(io) | |
| 42 | register struct iob *io; | |
| 43 | { | |
| 44 | ||
| 45 | (*devsw[io->i_ino.i_dev].dv_close)(io); | |
| 46 | } | |
| 47 | ||
| 48 | devioctl(io, cmd, arg) | |
| 49 | register struct iob *io; | |
| 50 | int cmd; | |
| 51 | caddr_t arg; | |
| 52 | { | |
| 53 | ||
| 54 | return ((*devsw[io->i_ino.i_dev].dv_ioctl)(io, cmd, arg)); | |
| 55 | } | |
| 56 | ||
| 57 | /*ARGSUSED*/ | |
| 58 | nullsys(io) | |
| 59 | struct iob *io; | |
| 60 | { | |
| 61 | ||
| 62 | ; | |
| 63 | } | |
| 64 | ||
| 65 | /*ARGSUSED*/ | |
| 66 | nullioctl(io, cmd, arg) | |
| 67 | struct iob *io; | |
| 68 | int cmd; | |
| 69 | caddr_t arg; | |
| 70 | { | |
| 71 | ||
| 72 | return (ECMD); | |
| 73 | } | |
| 74 | ||
| 75 | int nullsys(), nullioctl(); | |
| 76 | int hpstrategy(), hpopen(), hpioctl(); | |
| 77 | int upstrategy(), upopen(), upioctl(); | |
| 78 | ||
| 79 | struct devsw devsw[] = { | |
| 80 | { "hp", hpstrategy, hpopen, nullsys, hpioctl }, | |
| 81 | { "up", upstrategy, upopen, nullsys, upioctl }, | |
| 82 | { 0, 0, 0, 0, 0 } | |
| 83 | }; |