[rtems commit] bsps/sparc: Set best baud in APBUART driver

[Sebastian Huber]

Module:    rtems
Branch:    master
Commit:    e1f446d3c1adb0e5d37b879be421fb201594235d
Changeset: http://git.rtems.org/rtems/commit/?id=e1f446d3c1adb0e5d37b879be421fb201594235d

Author:    Sebastian Huber <sebastian.huber at embedded-brains.de>
Date:      Wed Jul  9 15:53:31 2014 +0200

bsps/sparc: Set best baud in APBUART driver

This prevents failures of all tests using rtems_shell_wait_for_input(),
e.g. capture, termios, pppd, etc.

---

 .../lib/libbsp/sparc/shared/uart/apbuart_termios.c |   14 ++++++++++++++
 1 files changed, 14 insertions(+), 0 deletions(-)

diff --git a/c/src/lib/libbsp/sparc/shared/uart/apbuart_termios.c b/c/src/lib/libbsp/sparc/shared/uart/apbuart_termios.c
index 58822c5..dd3ca5d 100644
--- a/c/src/lib/libbsp/sparc/shared/uart/apbuart_termios.c
+++ b/c/src/lib/libbsp/sparc/shared/uart/apbuart_termios.c
@@ -160,6 +160,16 @@ static bool apbuart_set_attributes(
   return true;
 }
 
+static void apbuart_set_best_baud(
+  rtems_termios_tty *tty,
+  const struct apbuart_context *uart
+)
+{
+  uint32_t baud = (uart->freq_hz * 10) / ((uart->regs->scaler * 10 + 5) * 8);
+
+  rtems_termios_set_best_baud(tty, baud);
+}
+
 static bool apbuart_first_open_polled(
   rtems_termios_tty *tty,
   rtems_libio_open_close_args_t *args
@@ -167,6 +177,8 @@ static bool apbuart_first_open_polled(
 {
   struct apbuart_context *uart = rtems_termios_get_device_context(tty);
 
+  apbuart_set_best_baud(tty, uart);
+
   /* Initialize UART on opening */
   uart->regs->ctrl |= APBUART_CTRL_RE | APBUART_CTRL_TE;
   uart->regs->status = 0;
@@ -182,6 +194,8 @@ static bool apbuart_first_open_interrupt(
   struct apbuart_context *uart = rtems_termios_get_device_context(tty);
   rtems_status_code sc;
 
+  apbuart_set_best_baud(tty, uart);
+
   /* Register Interrupt handler */
   sc = rtems_interrupt_handler_install(uart->irq, "console",
                                        RTEMS_INTERRUPT_SHARED,