Gitweb: http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=b65149...
Commit: b65149880d0467287fa4c7b4f19953392323f4ac
Parent: e51f47a5c695b76905aadc2be47c7dc774f3e5af
Author: René Bürgel <r.buergel@unicontrol.de>
AuthorDate: Sun Dec 21 02:54:31 2008 -0700
Committer: Grant Likely <grant.likely@secretlab.ca>
CommitDate: Sun Dec 21 02:54:31 2008 -0700
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 <r.buergel@unicontrol.de>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
---
drivers/serial/mpc52xx_uart.c | 10 ++++++++--
1 files changed, 8 insertions(+), 2 deletions(-)
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++;
}
}
--
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