From: René Bürgel Date: Sun, 21 Dec 2008 09:54:31 +0000 (-0700) Subject: powerpc/mpc5200: Make PSC UART driver update serial errors counters X-Git-Tag: upstream/snapshot3+hdmi~21162^2~17 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=b65149880d0467287fa4c7b4f19953392323f4ac;p=platform%2Fadaptation%2Frenesas_rcar%2Frenesas_kernel.git powerpc/mpc5200: Make PSC UART driver update serial errors counters This patch adds the capability to the mpc52xx-uart to report framing errors, parity errors, breaks and overruns to userspace. These values may be requested in userspace by using the ioctl TIOCGICOUNT. Signed-off-by: René Bürgel Signed-off-by: Grant Likely --- diff --git a/drivers/serial/mpc52xx_uart.c b/drivers/serial/mpc52xx_uart.c index 28c00c3..d82650d 100644 --- a/drivers/serial/mpc52xx_uart.c +++ b/drivers/serial/mpc52xx_uart.c @@ -752,10 +752,15 @@ mpc52xx_uart_int_rx_chars(struct uart_port *port) if (status & MPC52xx_PSC_SR_RB) { flag = TTY_BREAK; uart_handle_break(port); - } else if (status & MPC52xx_PSC_SR_PE) + port->icount.brk++; + } else if (status & MPC52xx_PSC_SR_PE) { flag = TTY_PARITY; - else if (status & MPC52xx_PSC_SR_FE) + port->icount.parity++; + } + else if (status & MPC52xx_PSC_SR_FE) { flag = TTY_FRAME; + port->icount.frame++; + } /* Clear error condition */ out_8(&PSC(port)->command, MPC52xx_PSC_RST_ERR_STAT); @@ -769,6 +774,7 @@ mpc52xx_uart_int_rx_chars(struct uart_port *port) * affect the current character */ tty_insert_flip_char(tty, 0, TTY_OVERRUN); + port->icount.overrun++; } }