Remove unused uart functions

Nothing ever called uart_flush_input() or uart_gets(), so remove them.
They're dead code, and make implementing UART DMA input more complex.

BUG=chrome-os-partner:20485
BRANCH=none
TEST=build all platforms; pass unit tests

Change-Id: I94c2c372ac3f326b98e819b2c89b8995311b2868
Signed-off-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/169345
Reviewed-by: Bill Richardson <wfrichar@chromium.org>

2 files changed, 0 insertions, 68 deletions

diff --git a/common/uart_buffering.c b/common/uart_buffering.c
index 3a55d10631..784e117503 100644
--- a/common/uart_buffering.c
+++ b/common/uart_buffering.c
@@ -240,21 +240,6 @@ void uart_flush_output(void)
 	uart_tx_flush();
 }
 
-void uart_flush_input(void)
-{
-	/* Disable interrupts */
-	uart_disable_interrupt();
-
-	/* Empty the hardware FIFO */
-	uart_process_input();
-
-	/* Clear the input buffer */
-	rx_buf_tail = rx_buf_head;
-
-	/* Re-enable interrupts */
-	uart_enable_interrupt();
-}
-
 int uart_getc(void)
 {
 	int c;
@@ -278,33 +263,6 @@ int uart_getc(void)
 	return c;
 }
 
-int uart_gets(char *dest, int size)
-{
-	int got = 0;
-	int c;
-
-	/* Read characters */
-	while (got < size - 1) {
-		c = uart_getc();
-
-		/* Stop on input buffer empty */
-		if (c == -1)
-			break;
-
-		dest[got++] = c;
-
-		/* Stop after newline */
-		if (c == '\n')
-			break;
-	}
-
-	/* Null-terminate */
-	dest[got] = '\0';
-
-	/* Return the length we got */
-	return got;
-}
-
 /*****************************************************************************/
 /* Host commands */
 
diff --git a/include/uart.h b/include/uart.h
index fec3fd47ec..bada502c8b 100644
--- a/include/uart.h
+++ b/include/uart.h
@@ -80,38 +80,12 @@ void uart_flush_output(void);
  */
 
 /**
- * Flush input buffer, discarding all input.
- */
-void uart_flush_input(void);
-
-/**
  * Read a single character of input, similar to fgetc().
  *
  * @return the character, or -1 if no input waiting.
  */
 int uart_getc(void);
 
-/**
- * Read characters from the UART, similar to fgets().
- *
- * Reads input until one of the following conditions is met:
- *    (1)  <size-1> characters have been read.
- *    (2)  A newline ('\n') has been read.
- *    (3)  The input buffer is empty (this keeps the call from blocking).
- *
- * Characters are stored in <dest> and are null-terminated.
- * Characters include the newline if present, so that the caller can
- * distinguish between a complete line and a truncated one.  If the
- * input buffer is empty, a null-terminated empty string ("") is
- * returned.
- *
- * @param dest		Destination for input
- * @param size		Size of buffer pointed to by dest
- *
- * @return the number of characters read, not counting the terminating null.
- */
-int uart_gets(char *dest, int size);
-
 /*
  * Hardware UART driver functions
  */