I am working on porting over a Linux Realtek driver to FreeBSD. I ran into a register-size issue.
FreeBSD's PCI-write function is defined as follows: rtwn_pci_write_4(struct rtwn_softc *sc, uint16_t addr) Notice that the second parameter is of type uint16_t. During initialization, the rtwn driver uses the rtwn_rf_prog structure to write a pre-defined list of data to a pre-defined list of registers. The structure to hold both lists is defined here: http://src.illumos.org/source/xref/freebsd-head/sys/dev/rtwn/if_rtwnreg.h#150. Notice how the second parameter 'reg' is a uint8_t. The rtwn_pci_write_4's addr is uint16_t, the rtwn_rf_prog's addr is a uint8_t. How would I reconcile this type mismatch? Additionally, the Linux version of this block of code has all register values as a uint32_t. It is not a matter of a cast, because some values definitely use more than 1 byte (ie 0xFFE). Suggestions on how to reconcile and resolve this issue? Thanks! Farhan Khan _______________________________________________ freebsd-wireless@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-wireless To unsubscribe, send any mail to "freebsd-wireless-unsubscr...@freebsd.org"
