On Wed, 24 Aug 2011 17:41:47 +0800 Hui Wang <jason77.wang@xxxxxxxxx> wrote: > The imx UART hardware controller can identify BREAK character and the > imx_set_termios() can accept BRKINT set by users, but current existing > imx_rxint() can't pass BREAK character and TTY_BREAK to the tty layer > as other serial drivers do (8250.c omap_serial.c). > > Here add code to handle BREAK character and pass it to tty layer. > > To detect error occurrence, i use URXD_ERR to replace (URXD_OVRRUN | > URXD_FRMERR | ...) because any kind of error occurs, URXD_ERR will > always be set to 1. > > I put the URXD_BRK to the first place to check since when BREAK error > occurs, not only URXD_BRK is set to 1, but also URXD_PRERR and > URXD_FRMERR are all set to 1. This arrangement can filter out fake > parity and frame errors when BREAK error occurs. > > Signed-off-by: Hui Wang <jason77.wang@xxxxxxxxx> > Cc: Sascha Hauer <s.hauer@xxxxxxxxxxxxxx> Acked-by: Alan Cox <alan@xxxxxxxxxxxxxxx> -- To unsubscribe from this list: send the line "unsubscribe linux-serial" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
