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-rw-r--r--nuttx/arch/arm/src/sam34/sam_serial.c706
1 files changed, 265 insertions, 441 deletions
diff --git a/nuttx/arch/arm/src/sam34/sam_serial.c b/nuttx/arch/arm/src/sam34/sam_serial.c
index fb7d69cba..2afc302e5 100644
--- a/nuttx/arch/arm/src/sam34/sam_serial.c
+++ b/nuttx/arch/arm/src/sam34/sam_serial.c
@@ -60,7 +60,13 @@
#include "os_internal.h"
#include "chip.h"
-#include "chip/sam_uart.h"
+#if defined(CONFIG_ARCH_CHIP_SAM3U) || defined(CONFIG_ARCH_CHIP_SAM4S)
+# include "chip/sam3u_uart.h"
+#elif defined(CONFIG_ARCH_CHIP_SAM4L)
+# include "chip/sam4l_usart.h"
+#else
+# error Unknown UART
+#endif
/****************************************************************************
* Definitions
@@ -87,9 +93,9 @@
/* Is there a USART/USART enabled? */
-#if !defined(CONFIG_SAM34_UART) && !defined(CONFIG_SAM34_USART0) && \
- !defined(CONFIG_SAM34_USART1) && !defined(CONFIG_SAM34_USART2) && \
- !defined(CONFIG_SAM34_USART3)
+#if !defined(CONFIG_SAM34_UART0) && !defined(CONFIG_SAM34_UART1) && \
+ !defined(CONFIG_SAM34_USART0) && !defined(CONFIG_SAM34_USART1) && \
+ !defined(CONFIG_SAM34_USART2) && !defined(CONFIG_SAM34_USART3)
# error "No USARTs enabled"
#endif
@@ -98,41 +104,54 @@
# define HAVE_USART
#endif
-/* Is there a serial console? */
+/* Is there a serial console? It could be on UART0-1 or USART0-3 */
-#if defined(CONFIG_UART_SERIAL_CONSOLE) && defined(CONFIG_SAM34_UART)
+#if defined(CONFIG_UART0_SERIAL_CONSOLE) && defined(CONFIG_SAM34_UART0)
+# undef CONFIG_UART1_SERIAL_CONSOLE
+# undef CONFIG_USART0_SERIAL_CONSOLE
+# undef CONFIG_USART1_SERIAL_CONSOLE
+# undef CONFIG_USART2_SERIAL_CONSOLE
+# undef CONFIG_USART3_SERIAL_CONSOLE
+# define HAVE_CONSOLE 1
+#elif defined(CONFIG_UART1_SERIAL_CONSOLE) && defined(CONFIG_SAM34_UART1)
+# undef CONFIG_UART0_SERIAL_CONSOLE
# undef CONFIG_USART0_SERIAL_CONSOLE
# undef CONFIG_USART1_SERIAL_CONSOLE
# undef CONFIG_USART2_SERIAL_CONSOLE
# undef CONFIG_USART3_SERIAL_CONSOLE
# define HAVE_CONSOLE 1
#elif defined(CONFIG_USART0_SERIAL_CONSOLE) && defined(CONFIG_SAM34_USART0)
-# undef CONFIG_UART_SERIAL_CONSOLE
+# undef CONFIG_UART0_SERIAL_CONSOLE
+# undef CONFIG_UART1_SERIAL_CONSOLE
# undef CONFIG_USART1_SERIAL_CONSOLE
# undef CONFIG_USART2_SERIAL_CONSOLE
# undef CONFIG_USART3_SERIAL_CONSOLE
# define HAVE_CONSOLE 1
#elif defined(CONFIG_USART1_SERIAL_CONSOLE) && defined(CONFIG_SAM34_USART1)
-# undef CONFIG_UART_SERIAL_CONSOLE
+# undef CONFIG_UART0_SERIAL_CONSOLE
+# undef CONFIG_UART1_SERIAL_CONSOLE
# undef CONFIG_USART0_SERIAL_CONSOLE
# undef CONFIG_USART2_SERIAL_CONSOLE
# undef CONFIG_USART3_SERIAL_CONSOLE
# define HAVE_CONSOLE 1
#elif defined(CONFIG_USART2_SERIAL_CONSOLE) && defined(CONFIG_SAM34_USART2)
-# undef CONFIG_UART_SERIAL_CONSOLE
+# undef CONFIG_UART0_SERIAL_CONSOLE
+# undef CONFIG_UART1_SERIAL_CONSOLE
# undef CONFIG_USART0_SERIAL_CONSOLE
# undef CONFIG_USART1_SERIAL_CONSOLE
# undef CONFIG_USART3_SERIAL_CONSOLE
# define HAVE_CONSOLE 1
#elif defined(CONFIG_USART3_SERIAL_CONSOLE) && defined(CONFIG_SAM34_USART3)
-# undef CONFIG_UART_SERIAL_CONSOLE
+# undef CONFIG_UART0_SERIAL_CONSOLE
+# undef CONFIG_UART1_SERIAL_CONSOLE
# undef CONFIG_USART0_SERIAL_CONSOLE
# undef CONFIG_USART1_SERIAL_CONSOLE
# undef CONFIG_USART2_SERIAL_CONSOLE
# define HAVE_CONSOLE 1
#else
# warning "No valid CONFIG_USARTn_SERIAL_CONSOLE Setting"
-# undef CONFIG_UART_SERIAL_CONSOLE
+# undef CONFIG_UART0_SERIAL_CONSOLE
+# undef CONFIG_UART1_SERIAL_CONSOLE
# undef CONFIG_USART0_SERIAL_CONSOLE
# undef CONFIG_USART1_SERIAL_CONSOLE
# undef CONFIG_USART2_SERIAL_CONSOLE
@@ -146,405 +165,165 @@
#ifdef USE_SERIALDRIVER
-/* Which UART/USART with be tty0/console and which tty1? tty2? tty3? tty4? */
-
-#if defined(CONFIG_UART_SERIAL_CONSOLE)
-# define CONSOLE_DEV g_uartport /* UART=console */
-# define TTYS0_DEV g_uartport /* UART=ttyS0 */
-# ifdef CONFIG_SAM34_USART0
-# define TTYS1_DEV g_usart0port /* UART=ttyS0;USART0=ttyS1 */
-# ifdef CONFIG_SAM34_USART1
-# define TTYS2_DEV g_usart1port /* UART=ttyS0;USART0=ttyS1;USART1=ttyS2 */
-# ifdef CONFIG_SAM34_USART2
-# define TTYS3_DEV g_usart2port /* UART=ttyS0;USART0=ttyS1;USART1=ttyS2;USART2=ttyS3 */
-# ifdef CONFIG_SAM34_USART3
-# define TTYS4_DEV g_usart3port /* UART=ttyS0;USART0=ttyS1;USART1=ttyS2;USART2=ttyS3;USART3=ttyS4 */
-# else
-# undef TTYS4_DEV /* UART=ttyS0;USART0=ttyS1;USART1=ttyS2;USART2=ttyS3;No ttyS4 */
-# endif
-# else
-# ifdef CONFIG_SAM34_USART3
-# define TTYS3_DEV g_usart3port /* UART=ttyS0;USART0=ttyS1;USART1=ttyS;USART3=ttyS3;No ttyS4 */
-# else
-# undef TTYS3_DEV /* UART=ttyS0;USART0=ttyS1;USART1=ttyS;No ttyS3;No ttyS4 */
-# endif
-# undef TTYS4_DEV /* No ttyS4 */
-# endif
-# else
-# ifdef CONFIG_SAM34_USART2
-# define TTYS2_DEV g_usart2port /* UART=ttyS0;USART0=ttyS1;USART2=ttys2;No ttyS4 */
-# ifdef CONFIG_SAM34_USART3
-# define TTYS3_DEV g_usart3port /* UART=ttyS0;USART0=ttyS1;USART2=ttys2;USART3=ttyS3;No ttyS4 */
-# else
-# undef TTYS3_DEV /* UART=ttyS0;USART0=ttyS1;USART2=ttys2;No ttyS3;No ttyS4 */
-# endif
-# undef TTYS4_DEV /* No ttyS4 */
-# else
-# ifdef CONFIG_SAM34_USART3
-# define TTYS2_DEV g_usart3port /* UART=ttyS0;USART0=ttyS1;USART3=ttyS2;No ttyS3;No ttyS4 */
-# else
-# undef TTYS2_DEV /* UART=ttyS0;USART0=ttyS1;No ttyS2;No ttyS3;No ttyS4 */
-# endif
-# undef TTYS3_DEV /* No ttyS3 */
-# undef TTYS4_DEV /* No ttyS4 */
-# endif
-# endif
-# else
-# ifdef CONFIG_SAM34_USART1
-# define TTYS1_DEV g_usart1port /* UART=ttyS0;USART1=ttyS1;No ttyS4 */
-# ifdef CONFIG_SAM34_USART2
-# define TTYS2_DEV g_usart2port /* UART=ttyS0;USART1=ttyS1;USART2=ttyS2;No ttyS4 */
-# ifdef CONFIG_SAM34_USART3
-# define TTYS3_DEV g_usart3port /* UART=ttyS0;USART1=ttyS1;USART2=ttyS2;USART3=ttyS3;No ttyS4 */
-# else
-# undef TTYS3_DEV /* UART=ttyS0;USART1=ttyS1;USART2=ttyS2;No ttyS3;No ttyS4 */
-# endif
-# else
-# ifdef CONFIG_SAM34_USART3
-# define TTYS2_DEV g_usart3port /* UART=ttyS0;USART1=ttyS1;USART3=ttyS2;No ttyS3;No ttyS4 */
-# else
-# undef TTYS2_DEV /* UART=ttyS0;USART1=ttyS1;No ttyS2;No ttyS3;No ttyS4 */
-# endif
-# undef TTYS3_DEV /* No ttyS3 */
-# endif
-# else
-# ifdef CONFIG_SAM34_USART2
-# define TTYS1_DEV g_usart2port /* UART=ttyS0;USART2=ttyS1;No ttyS3;No ttyS4 */
-# ifdef CONFIG_SAM34_USART3
-# define TTYS2_DEV g_usart3port /* UART=ttyS0;USART2=ttyS1;USART3=ttyS2;No ttyS3;No ttyS4 */
-# else
-# undef TTYS2_DEV /* UART=ttyS0;USART2=ttyS1;No ttyS2;No ttyS3;No ttyS4 */
-# endif
-# else
-# ifdef CONFIG_SAM34_USART3
-# define TTYS1_DEV g_usart3port /* UART=ttyS0;USART3=ttyS1;No ttyS2;No ttyS3;No ttyS4 */
-# else
-# undef TTYS1_DEV /* UART=ttyS0;No ttyS1;No ttyS2;No ttyS3;No ttyS4 */
-# endif
-# undef TTYS2_DEV /* No ttyS2 */
-# endif
-# undef TTYS3_DEV /* No ttyS3 */
-# endif
-# undef TTYS4_DEV /* No ttyS4 */
-# endif
+/* Which UART/USART with be tty0/console and which tty1? tty2? tty3? tty4? tty5? */
+
+/* First pick the console and ttys0. This could be any of UART0-1, USART0-3 */
+
+#if defined(CONFIG_UART0_SERIAL_CONSOLE)
+# define CONSOLE_DEV g_uart0port /* UART0 is console */
+# define TTYS0_DEV g_uart0port /* UART0 is ttyS0 */
+# define UART0_ASSIGNED 1
+#elif defined(CONFIG_UART1_SERIAL_CONSOLE)
+# define CONSOLE_DEV g_uart1port /* UART1 is console */
+# define TTYS0_DEV g_uart1port /* UART1 is ttyS0 */
+# define UART1_ASSIGNED 1
#elif defined(CONFIG_USART0_SERIAL_CONSOLE)
-# define CONSOLE_DEV g_usart0port /* USART0=console */
-# define TTYS0_DEV g_usart0port /* USART0=ttyS0 */
-# ifdef CONFIG_SAM34_UART
-# define TTYS1_DEV g_uartport /* USART0=ttyS0;UART=ttyS1 */
-# ifdef CONFIG_SAM34_USART1
-# define TTYS2_DEV g_usart1port /* USART0=ttyS0;UART=ttyS1;USART1=ttyS2 */
-# ifdef CONFIG_SAM34_USART2
-# define TTYS3_DEV g_usart2port /* USART0=ttyS0;UART=ttyS1;USART1=ttyS2;USART2=ttyS3 */
-# ifdef CONFIG_SAM34_USART3
-# define TTYS4_DEV g_usart3port /* USART0=ttyS0;UART=ttyS1;USART1=ttyS2;USART2=ttyS3;USART3=ttyS4 */
-# else
-# undef TTYS4_DEV /* USART0=ttyS0;UART=ttyS1;USART1=ttyS2;USART2=ttyS3;No ttyS4 */
-# endif
-# else
-# ifdef CONFIG_SAM34_USART3
-# define TTYS3_DEV g_usart3port /* USART0=ttyS0;UART=ttyS1;USART1=ttyS;USART3=ttyS3;No ttyS4 */
-# else
-# undef TTYS3_DEV /* USART0=ttyS0;UART=ttyS1;USART1=ttyS;No ttyS3;No ttyS4 */
-# endif
-# undef TTYS4_DEV /* No ttyS4 */
-# endif
-# else
-# ifdef CONFIG_SAM34_USART2
-# define TTYS2_DEV g_usart2port /* USART0=ttyS0;UART=ttyS1;USART2=ttys2;No ttyS4 */
-# ifdef CONFIG_SAM34_USART3
-# define TTYS3_DEV g_usart3port /* USART0=ttyS0;UART=ttyS1;USART2=ttys2;USART3=ttyS3;No ttyS4 */
-# else
-# undef TTYS3_DEV /* USART0=ttyS0;UART=ttyS1;USART2=ttys2;No ttyS3;No ttyS4 */
-# endif
-# undef TTYS4_DEV /* No ttyS4 */
-# else
-# ifdef CONFIG_SAM34_USART3
-# define TTYS2_DEV g_usart3port /* USART0=ttyS0;UART=ttyS1;USART3=ttyS2;No ttyS3;No ttyS4 */
-# else
-# undef TTYS2_DEV /* USART0=ttyS0;UART=ttyS1;No ttyS2;No ttyS3;No ttyS4 */
-# endif
-# undef TTYS3_DEV /* No ttyS3 */
-# undef TTYS4_DEV /* No ttyS4 */
-# endif
-# endif
-# else
-# ifdef CONFIG_SAM34_USART1
-# define TTYS1_DEV g_usart1port /* USART0=ttyS0;USART1=ttyS1;No ttyS4 */
-# ifdef CONFIG_SAM34_USART2
-# define TTYS2_DEV g_usart2port /* USART0=ttyS0;USART1=ttyS1;USART2=ttyS2;No ttyS4 */
-# ifdef CONFIG_SAM34_USART3
-# define TTYS3_DEV g_usart3port /* USART0=ttyS0;USART1=ttyS1;USART2=ttyS2;USART3=ttyS3;No ttyS4 */
-# else
-# undef TTYS3_DEV /* USART0=ttyS0;USART1=ttyS1;USART2=ttyS2;No ttyS3;No ttyS4 */
-# endif
-# else
-# ifdef CONFIG_SAM34_USART3
-# define TTYS2_DEV g_usart3port /* USART0=ttyS0;USART1=ttyS1;USART3=ttyS2;No ttyS3;No ttyS4 */
-# else
-# undef TTYS2_DEV /* USART0=ttyS0;USART1=ttyS1;No ttyS2;No ttyS3;No ttyS4 */
-# endif
-# undef TTYS3_DEV /* No ttyS3 */
-# endif
-# else
-# ifdef CONFIG_SAM34_USART2
-# define TTYS1_DEV g_usart2port /* USART0=ttyS0;USART2=ttyS1;No ttyS3;No ttyS4 */
-# ifdef CONFIG_SAM34_USART3
-# define TTYS2_DEV g_usart3port /* USART0=ttyS0;USART2=ttyS1;USART3=ttyS2;No ttyS3;No ttyS4 */
-# else
-# undef TTYS3_DEV /* USART0=ttyS0;USART2=ttyS1;No ttyS2;No ttyS3;No ttyS4 */
-# endif
-# else
-# ifdef CONFIG_SAM34_USART3
-# define TTYS1_DEV g_usart3port /* USART0=ttyS0;USART3=ttyS1;No ttyS2;No ttyS3;No ttyS4 */
-# else
-# undef TTYS1_DEV /* USART0=ttyS0;No ttyS1;No ttyS2;No ttyS3;No ttyS4 */
-# endif
-# undef TTYS2_DEV /* No ttyS2 */
-# endif
-# undef TTYS3_DEV /* No ttyS3 */
-# endif
-# undef TTYS4_DEV /* No ttyS4 */
-# endif
+# define CONSOLE_DEV g_usart0port /* USART0 is console */
+# define TTYS0_DEV g_usart0port /* USART0 is ttyS0 */
+# define USART0_ASSIGNED 1
#elif defined(CONFIG_USART1_SERIAL_CONSOLE)
-# define CONSOLE_DEV g_usart1port /* USART1=console */
-# define TTYS0_DEV g_usart1port /* USART1=ttyS0 */
-# ifdef CONFIG_SAM34_UART
-# define TTYS1_DEV g_uartport /* USART1=ttyS0;UART=ttyS1 */
-# ifdef CONFIG_SAM34_USART0
-# define TTYS2_DEV g_usart0port /* USART1=ttyS0;UART=ttyS1;USART0=ttyS2 */
-# ifdef CONFIG_SAM34_USART2
-# define TTYS3_DEV g_usart2port /* USART1=ttyS0;UART=ttyS1;USART0=ttyS2;USART2=ttyS3 */
-# ifdef CONFIG_SAM34_USART3
-# define TTYS4_DEV g_usart3port /* USART1=ttyS0;UART=ttyS1;USART0=ttyS2;USART2=ttyS3;USART3=ttyS4 */
-# else
-# undef TTYS4_DEV /* USART1=ttyS0;UART=ttyS1;USART0=ttyS2;USART2=ttyS3;No ttyS4 */
-# endif
-# else
-# ifdef CONFIG_SAM34_USART3
-# define TTYS3_DEV g_usart3port /* USART1=ttyS0;UART=ttyS1;USART0=ttyS;USART3=ttyS3;No ttyS4 */
-# else
-# undef TTYS3_DEV /* USART1=ttyS0;UART=ttyS1;USART0=ttyS;No ttyS3;No ttyS4 */
-# endif
-# undef TTYS4_DEV /* No ttyS4 */
-# endif
-# else
-# ifdef CONFIG_SAM34_USART2
-# define TTYS2_DEV g_usart2port /* USART1=ttyS0;UART=ttyS1;USART2=ttys2;No ttyS4 */
-# ifdef CONFIG_SAM34_USART3
-# define TTYS3_DEV g_usart3port /* USART1=ttyS0;UART=ttyS1;USART2=ttys2;USART3=ttyS3;No ttyS4 */
-# else
-# undef TTYS3_DEV /* USART1=ttyS0;UART=ttyS1;USART2=ttys2;No ttyS3;No ttyS4 */
-# endif
-# undef TTYS4_DEV /* No ttyS4 */
-# else
-# ifdef CONFIG_SAM34_USART3
-# define TTYS2_DEV g_usart3port /* USART1=ttyS0;UART=ttyS1;USART3=ttyS2;No ttyS3;No ttyS4 */
-# else
-# undef TTYS2_DEV /* USART1=ttyS0;UART=ttyS1;No ttyS2;No ttyS3;No ttyS4 */
-# endif
-# undef TTYS3_DEV /* No ttyS3 */
-# undef TTYS4_DEV /* No ttyS4 */
-# endif
-# endif
-# else
-# ifdef CONFIG_SAM34_USART0
-# define TTYS1_DEV g_usart0port /* USART1=ttyS0;USART0=ttyS1;No ttyS4 */
-# ifdef CONFIG_SAM34_USART2
-# define TTYS2_DEV g_usart2port /* USART1=ttyS0;USART0=ttyS1;USART2=ttyS2;No ttyS4 */
-# ifdef CONFIG_SAM34_USART3
-# define TTYS3_DEV g_usart3port /* USART1=ttyS0;USART0=ttyS1;USART2=ttyS2;USART3=ttyS3;No ttyS4 */
-# else
-# undef TTYS3_DEV /* USART1=ttyS0;USART0=ttyS1;USART2=ttyS2;No ttyS3;No ttyS4 */
-# endif
-# else
-# ifdef CONFIG_SAM34_USART3
-# define TTYS2_DEV g_usart3port /* USART1=ttyS0;USART0=ttyS1;USART3=ttyS2;No ttyS3;No ttyS4 */
-# else
-# undef TTYS2_DEV /* USART1=ttyS0;USART0=ttyS1;No ttyS2;No ttyS3;No ttyS4 */
-# endif
-# undef TTYS3_DEV /* No ttyS3 */
-# endif
-# else
-# ifdef CONFIG_SAM34_USART2
-# define TTYS1_DEV g_usart2port /* USART1=ttyS0;USART2=ttyS1;No ttyS3;No ttyS4 */
-# ifdef CONFIG_SAM34_USART3
-# define TTYS2_DEV g_usart3port /* USART1=ttyS0;USART2=ttyS1;USART3=ttyS2;No ttyS3;No ttyS4 */
-# else
-# undef TTYS3_DEV /* USART1=ttyS0;USART2=ttyS1;No ttyS2;No ttyS3;No ttyS4 */
-# endif
-# else
-# ifdef CONFIG_SAM34_USART3
-# define TTYS1_DEV g_usart3port /* USART1=ttyS0;USART3=ttyS1;No ttyS2;No ttyS3;No ttyS4 */
-# else
-# undef TTYS1_DEV /* USART1=ttyS0;No ttyS1;No ttyS2;No ttyS3;No ttyS4 */
-# endif
-# undef TTYS2_DEV /* No ttyS2 */
-# endif
-# undef TTYS3_DEV /* No ttyS3 */
-# endif
-# undef TTYS4_DEV /* No ttyS4 */
-# endif
+# define CONSOLE_DEV g_usart1port /* USART1 is console */
+# define TTYS0_DEV g_usart1port /* USART1 is ttyS0 */
+# define USART1_ASSIGNED 1
#elif defined(CONFIG_USART2_SERIAL_CONSOLE)
-# define CONSOLE_DEV g_usart2port /* USART2=console */
-# define TTYS0_DEV g_usart2port /* USART2=ttyS0 */
-# ifdef CONFIG_SAM34_UART
-# define TTYS1_DEV g_uartport /* USART2=ttyS0;UART=ttyS1 */
-# ifdef CONFIG_SAM34_USART0
-# define TTYS2_DEV g_usart0port /* USART2=ttyS0;UART=ttyS1;USART0=ttyS2 */
-# ifdef CONFIG_SAM34_USART1
-# define TTYS3_DEV g_usart1port /* USART2=ttyS0;UART=ttyS1;USART0=ttyS2;USART1=ttyS3 */
-# ifdef CONFIG_SAM34_USART3
-# define TTYS4_DEV g_usart3port /* USART2=ttyS0;UART=ttyS1;USART0=ttyS2;USART1=ttyS3;USART3=ttyS4 */
-# else
-# undef TTYS4_DEV /* USART2=ttyS0;UART=ttyS1;USART0=ttyS2;USART1=ttyS3;No ttyS4 */
-# endif
-# else
-# ifdef CONFIG_SAM34_USART3
-# define TTYS3_DEV g_usart3port /* USART2=ttyS0;UART=ttyS1;USART0=ttyS;USART3=ttyS3;No ttyS4 */
-# else
-# undef TTYS3_DEV /* USART2=ttyS0;UART=ttyS1;USART0=ttyS;No ttyS3;No ttyS4 */
-# endif
-# undef TTYS4_DEV /* No ttyS4 */
-# endif
-# else
-# ifdef CONFIG_SAM34_USART1
-# define TTYS2_DEV g_usart1port /* USART2=ttyS0;UART=ttyS1;USART1=ttys2;No ttyS4 */
-# ifdef CONFIG_SAM34_USART3
-# define TTYS3_DEV g_usart3port /* USART2=ttyS0;UART=ttyS1;USART1=ttys2;USART3=ttyS3;No ttyS4 */
-# else
-# undef TTYS3_DEV /* USART2=ttyS0;UART=ttyS1;USART1=ttys2;No ttyS3;No ttyS4 */
-# endif
-# undef TTYS4_DEV /* No ttyS4 */
-# else
-# ifdef CONFIG_SAM34_USART3
-# define TTYS2_DEV g_usart3port /* USART2=ttyS0;UART=ttyS1;USART3=ttyS2;No ttyS3;No ttyS4 */
-# else
-# undef TTYS2_DEV /* USART2=ttyS0;UART=ttyS1;No ttyS2;No ttyS3;No ttyS4 */
-# endif
-# undef TTYS3_DEV /* No ttyS3 */
-# undef TTYS4_DEV /* No ttyS4 */
-# endif
-# endif
-# else
-# ifdef CONFIG_SAM34_USART0
-# define TTYS1_DEV g_usart0port /* USART2=ttyS0;USART0=ttyS1;No ttyS4 */
-# ifdef CONFIG_SAM34_USART1
-# define TTYS2_DEV g_usart1port /* USART2=ttyS0;USART0=ttyS1;USART1=ttyS2;No ttyS4 */
-# ifdef CONFIG_SAM34_USART3
-# define TTYS3_DEV g_usart3port /* USART2=ttyS0;USART0=ttyS1;USART1=ttyS2;USART3=ttyS3;No ttyS4 */
-# else
-# undef TTYS3_DEV /* USART2=ttyS0;USART0=ttyS1;USART1=ttyS2;No ttyS3;No ttyS4 */
-# endif
-# else
-# ifdef CONFIG_SAM34_USART3
-# define TTYS2_DEV g_usart3port /* USART2=ttyS0;USART0=ttyS1;USART3=ttyS2;No ttyS3;No ttyS4 */
-# else
-# undef TTYS2_DEV /* USART2=ttyS0;USART0=ttyS1;No ttyS2;No ttyS3;No ttyS4 */
-# endif
-# undef TTYS3_DEV /* No ttyS3 */
-# endif
-# else
-# ifdef CONFIG_SAM34_USART1
-# define TTYS1_DEV g_usart1port /* USART2=ttyS0;USART1=ttyS1;No ttyS3;No ttyS4 */
-# ifdef CONFIG_SAM34_USART3
-# define TTYS2_DEV g_usart3port /* USART2=ttyS0;USART1=ttyS1;USART3=ttyS2;No ttyS3;No ttyS4 */
-# else
-# undef TTYS2_DEV /* USART2=ttyS0;USART1=ttyS1;No ttyS2;No ttyS3;No ttyS4 */
-# endif
-# else
-# ifdef CONFIG_SAM34_USART3
-# define TTYS1_DEV g_usart3port /* USART2=ttyS0;USART3=ttyS1;No ttyS2;No ttyS3;No ttyS4 */
-# else
-# undef TTYS1_DEV /* USART2=ttyS0;No ttyS1;No ttyS2;No ttyS3;No ttyS4 */
-# endif
-# undef TTYS2_DEV /* No ttyS2 */
-# endif
-# undef TTYS3_DEV /* No ttyS3 */
-# endif
-# undef TTYS4_DEV /* No ttyS4 */
-# endif
+# define CONSOLE_DEV g_usart2port /* USART2 is console */
+# define TTYS0_DEV g_usart2port /* USART2 is ttyS0 */
+# define USART2_ASSIGNED 1
#elif defined(CONFIG_USART3_SERIAL_CONSOLE)
-# define CONSOLE_DEV g_usart3port /* USART3=console */
-# define TTYS0_DEV g_usart3port /* USART3=ttyS0 */
-# ifdef CONFIG_SAM34_UART
-# define TTYS1_DEV g_uartport /* USART3=ttyS0;UART=ttyS1 */
-# ifdef CONFIG_SAM34_USART0
-# define TTYS2_DEV g_usart0port /* USART3=ttyS0;UART=ttyS1;USART0=ttyS2 */
-# ifdef CONFIG_SAM34_USART1
-# define TTYS3_DEV g_usart1port /* USART3=ttyS0;UART=ttyS1;USART0=ttyS2;USART1=ttyS3 */
-# ifdef CONFIG_SAM34_USART2
-# define TTYS4_DEV g_usart2port /* USART3=ttyS0;UART=ttyS1;USART0=ttyS2;USART1=ttyS3;USART2=ttyS4 */
-# else
-# undef TTYS4_DEV /* USART3=ttyS0;UART=ttyS1;USART0=ttyS2;USART1=ttyS3;No ttyS4 */
-# endif
-# else
-# ifdef CONFIG_SAM34_USART2
-# define TTYS3_DEV g_usart2port /* USART3=ttyS0;UART=ttyS1;USART0=ttyS;USART2=ttyS3;No ttyS4 */
-# else
-# undef TTYS3_DEV /* USART3=ttyS0;UART=ttyS1;USART0=ttyS;No ttyS3;No ttyS4 */
-# endif
-# undef TTYS4_DEV /* No ttyS4 */
-# endif
-# else
-# ifdef CONFIG_SAM34_USART1
-# define TTYS2_DEV g_usart1port /* USART3=ttyS0;UART=ttyS1;USART1=ttys2;No ttyS4 */
-# ifdef CONFIG_SAM34_USART2
-# define TTYS3_DEV g_usart2port /* USART3=ttyS0;UART=ttyS1;USART1=ttys2;USART2=ttyS3;No ttyS4 */
-# else
-# undef TTYS3_DEV /* USART3=ttyS0;UART=ttyS1;USART1=ttys2;No ttyS3;No ttyS4 */
-# endif
-# undef TTYS4_DEV /* No ttyS4 */
-# else
-# ifdef CONFIG_SAM34_USART2
-# define TTYS2_DEV g_usart2port /* USART3=ttyS0;UART=ttyS1;USART2=ttyS2;No ttyS3;No ttyS4 */
-# else
-# undef TTYS2_DEV /* USART3=ttyS0;UART=ttyS1;No ttyS2;No ttyS3;No ttyS4 */
-# endif
-# undef TTYS3_DEV /* No ttyS3 */
-# undef TTYS4_DEV /* No ttyS4 */
-# endif
-# endif
-# else
-# ifdef CONFIG_SAM34_USART0
-# define TTYS1_DEV g_usart0port /* USART3=ttyS0;USART0=ttyS1;No ttyS4 */
-# ifdef CONFIG_SAM34_USART1
-# define TTYS2_DEV g_usart1port /* USART3=ttyS0;USART0=ttyS1;USART1=ttyS2;No ttyS4 */
-# ifdef CONFIG_SAM34_USART2
-# define TTYS3_DEV g_usart2port /* USART3=ttyS0;USART0=ttyS1;USART1=ttyS2;USART2=ttyS3;No ttyS4 */
-# else
-# undef TTYS3_DEV /* USART3=ttyS0;USART0=ttyS1;USART1=ttyS2;No ttyS3;No ttyS4 */
-# endif
-# else
-# ifdef CONFIG_SAM34_USART2
-# define TTYS2_DEV g_usart2port /* USART3=ttyS0;USART0=ttyS1;USART2=ttyS2;No ttyS3;No ttyS4 */
-# else
-# undef TTYS2_DEV /* USART3=ttyS0;USART0=ttyS1;No ttyS2;No ttyS3;No ttyS4 */
-# endif
-# undef TTYS3_DEV /* No ttyS3 */
-# endif
-# else
-# ifdef CONFIG_SAM34_USART1
-# define TTYS1_DEV g_usart1port /* USART3=ttyS0;USART1=ttyS1;No ttyS3;No ttyS4 */
-# ifdef CONFIG_SAM34_USART2
-# define TTYS2_DEV g_EEEEport /* USART3=ttyS0;USART1=ttyS1;USART2=ttyS2;No ttyS3;No ttyS4 */
-# else
-# undef TTYS2_DEV /* USART3=ttyS0;USART1=ttyS1;No ttyS2;No ttyS3;No ttyS4 */
-# endif
-# else
-# ifdef CONFIG_SAM34_USART2
-# define TTYS1_DEV g_usart2port /* USART3=ttyS0;USART2=ttyS1;No ttyS2;No ttyS3;No ttyS4 */
-# else
-# undef TTYS1_DEV /* USART3=ttyS0;No ttyS1;No ttyS2;No ttyS3;No ttyS4 */
-# endif
-# undef TTYS2_DEV /* No ttyS2 */
-# endif
-# undef TTYS3_DEV /* No ttyS3 */
-# endif
-# undef TTYS4_DEV /* No ttyS4 */
+# define CONSOLE_DEV g_usart3port /* USART3 is console */
+# define TTYS5_DEV g_usart3port /* USART3 is ttyS0 */
+#else
+# undef CONSOLE_DEV /* No console */
+# if defined(CONFIG_SAM34_UART0)
+# define TTYS0_DEV g_uart0port /* UART0 is ttyS0 */
+# define UART0_ASSIGNED 1
+# elif defined(CONFIG_SAM34_UART1)
+# define TTYS0_DEV g_uart1port /* UART1 is ttyS0 */
+# define UART1_ASSIGNED 1
+# elif defined(CONFIG_SAM34_USART0)
+# define TTYS0_DEV g_usart0port /* USART0 is ttyS0 */
+# define USART0_ASSIGNED 1
+# elif defined(CONFIG_SAM34_USART1)
+# define TTYS0_DEV g_usart1port /* USART1 is ttyS0 */
+# define USART1_ASSIGNED 1
+# elif defined(CONFIG_SAM34_USART2)
+# define TTYS0_DEV g_usart2port /* USART2 is ttyS0 */
+# define USART2_ASSIGNED 1
+# elif defined(CONFIG_SAM34_USART3)
+# define TTYS0_DEV g_usart3port /* USART3 is ttyS0 */
+# define USART3_ASSIGNED 1
# endif
#endif
+/* Pick ttys1. This could be any of UART0-1, USART0-3 excluding the console UART. */
+
+#if defined(CONFIG_SAM34_UART0) && !defined(UART0_ASSIGNED)
+# define TTYS1_DEV g_uart0port /* UART0 is ttyS1 */
+# define UART0_ASSIGNED 1
+#elif defined(CONFIG_SAM34_UART1) && !defined(UART1_ASSIGNED)
+# define TTYS1_DEV g_uart1port /* UART1 is ttyS1 */
+# define UART1_ASSIGNED 1
+#elif defined(CONFIG_SAM34_USART0) && !defined(USART0_ASSIGNED)
+# define TTYS1_DEV g_usart0port /* USART0 is ttyS1 */
+# define USART0_ASSIGNED 1
+#elif defined(CONFIG_SAM34_USART1) && !defined(USART1_ASSIGNED)
+# define TTYS1_DEV g_usart1port /* USART1 is ttyS1 */
+# define USART1_ASSIGNED 1
+#elif defined(CONFIG_SAM34_USART2) && !defined(USART2_ASSIGNED)
+# define TTYS1_DEV g_usart2port /* USART2 is ttyS1 */
+# define USART2_ASSIGNED 1
+#elif defined(CONFIG_SAM34_USART3) && !defined(USART3_ASSIGNED)
+# define TTYS1_DEV g_usart3port /* USART3 is ttyS1 */
+# define USART3_ASSIGNED 1
+#endif
+
+/* Pick ttys2. This could be one of UART1 or USART0-3. It can't be UART0
+ * because that was either assigned as ttyS0 or ttys1. One of these
+ * could also be the console.
+ */
+
+#if defined(CONFIG_SAM34_UART1) && !defined(UART1_ASSIGNED)
+# define TTYS2_DEV g_uart1port /* UART1 is ttyS2 */
+# define UART1_ASSIGNED 1
+#elif defined(CONFIG_SAM34_USART0) && !defined(USART0_ASSIGNED)
+# define TTYS2_DEV g_usart0port /* USART0 is ttyS2 */
+# define USART0_ASSIGNED 1
+#elif defined(CONFIG_SAM34_USART1) && !defined(USART1_ASSIGNED)
+# define TTYS2_DEV g_usart1port /* USART1 is ttyS2 */
+# define USART1_ASSIGNED 1
+#elif defined(CONFIG_SAM34_USART2) && !defined(USART2_ASSIGNED)
+# define TTYS2_DEV g_usart2port /* USART2 is ttyS2 */
+# define USART2_ASSIGNED 1
+#elif defined(CONFIG_SAM34_USART3) && !defined(USART3_ASSIGNED)
+# define TTYS2_DEV g_usart3port /* USART3 is ttyS2 */
+# define USART3_ASSIGNED 1
+#endif
+
+/* Pick ttys3. This could be one of USART0-3. It can't be UART0-1 because
+ * those have already been assigned to ttsyS0, 1, or 2. One of
+ * USART0-3 could also be the console.
+ */
+
+#if defined(CONFIG_SAM34_USART0) && !defined(USART0_ASSIGNED)
+# define TTYS3_DEV g_usart0port /* USART0 is ttyS3 */
+# define USART0_ASSIGNED 1
+#elif defined(CONFIG_SAM34_USART1) && !defined(USART1_ASSIGNED)
+# define TTYS3_DEV g_usart1port /* USART1 is ttyS3 */
+# define USART1_ASSIGNED 1
+#elif defined(CONFIG_SAM34_USART2) && !defined(USART2_ASSIGNED)
+# define TTYS3_DEV g_usart2port /* USART2 is ttyS3 */
+# define USART2_ASSIGNED 1
+#elif defined(CONFIG_SAM34_USART3) && !defined(USART3_ASSIGNED)
+# define TTYS3_DEV g_usart3port /* USART3 is ttyS3 */
+# define USART3_ASSIGNED 1
+#endif
+
+/* Pick ttys4. This could be one of USART1-3. It can't be UART0-1 or USART0
+ * because those have already been assigned to ttsyS0, 1, 2 or 3. One of
+ * USART1-3 could also be the console.
+ */
+
+#if defined(CONFIG_SAM34_USART1) && !defined(USART1_ASSIGNED)
+# define TTYS4_DEV g_usart1port /* USART1 is ttyS4 */
+# define USART1_ASSIGNED 1
+#elif defined(CONFIG_SAM34_USART2) && !defined(USART2_ASSIGNED)
+# define TTYS4_DEV g_usart2port /* USART2 is ttyS4 */
+# define USART2_ASSIGNED 1
+#elif defined(CONFIG_SAM34_USART3) && !defined(USART3_ASSIGNED)
+# define TTYS4_DEV g_usart3port /* USART3 is ttyS4 */
+# define USART3_ASSIGNED 1
+#endif
+
+/* Pick ttys5. This could be one of USART2-3. It can't be UART0-1 or
+ * USART0-1 because those have already been assigned to ttsyS0, 1, 2,
+ * 3 or 4. One of USART2-3 could also be the console.
+ */
+
+#if defined(CONFIG_SAM34_USART2) && !defined(USART2_ASSIGNED)
+# define TTYS5_DEV g_usart2port /* USART2 is ttyS5 */
+# define USART2_ASSIGNED 1
+#elif defined(CONFIG_SAM34_USART3) && !defined(USART3_ASSIGNED)
+# define TTYS5_DEV g_usart3port /* USART3 is ttyS5 */
+# define USART3_ASSIGNED 1
+#endif
+
+/* Select MCU-specific settings
+ *
+ * For the SAM3U, the USARTs are driven by the main clock.
+ * For the SAM4L, the USARTs are driven by CLK_USART (undivided) which is
+ * selected by the PBADIVMASK register.
+ */
+
+#if defined(CONFIG_ARCH_CHIP_SAM3U) || defined(CONFIG_ARCH_CHIP_SAM4S)
+# define SAM_MR_USCLKS UART_MR_USCLKS_MCK /* Source = Main clock */
+# define SAM_USART_CLOCK BOARD_MCK_FREQUENCY /* Frequency of the main clock */
+#elif defined(CONFIG_ARCH_CHIP_SAM4L)
+# define SAM_MR_USCLKS UART_MR_USCLKS_USART /* Source = USART_CLK (undefined) */
+# define SAM_USART_CLOCK BOARD_PBA_FREQUENCY /* PBA frequency is undivided */
+#else
+# error Unrecognized SAM architecture
+#endif
+
/****************************************************************************
* Private Types
****************************************************************************/
@@ -601,9 +380,13 @@ static const struct uart_ops_s g_uart_ops =
/* I/O buffers */
-#ifdef CONFIG_SAM34_UART
-static char g_uartrxbuffer[CONFIG_UART_RXBUFSIZE];
-static char g_uarttxbuffer[CONFIG_UART_TXBUFSIZE];
+#ifdef CONFIG_SAM34_UART0
+static char g_uart0rxbuffer[CONFIG_UART0_RXBUFSIZE];
+static char g_uart0txbuffer[CONFIG_UART0_TXBUFSIZE];
+#endif
+#ifdef CONFIG_SAM34_UART1
+static char g_uart1rxbuffer[CONFIG_UART1_RXBUFSIZE];
+static char g_uart1txbuffer[CONFIG_UART1_TXBUFSIZE];
#endif
#ifdef CONFIG_SAM34_USART0
static char g_usart0rxbuffer[CONFIG_USART0_RXBUFSIZE];
@@ -622,33 +405,63 @@ static char g_usart3rxbuffer[CONFIG_USART3_RXBUFSIZE];
static char g_usart3txbuffer[CONFIG_USART3_TXBUFSIZE];
#endif
-/* This describes the state of the UART port. */
+/* This describes the state of the UART0 port. */
-#ifdef CONFIG_SAM34_UART
-static struct up_dev_s g_uartpriv =
+#ifdef CONFIG_SAM34_UART0
+static struct up_dev_s g_uart0priv =
{
- .usartbase = SAM_UART_BASE,
- .baud = CONFIG_UART_BAUD,
- .irq = SAM_IRQ_UART,
- .parity = CONFIG_UART_PARITY,
- .bits = CONFIG_UART_BITS,
- .stopbits2 = CONFIG_UART_2STOP,
+ .usartbase = SAM_UART0_BASE,
+ .baud = CONFIG_UART0_BAUD,
+ .irq = SAM_IRQ_UART0,
+ .parity = CONFIG_UART0_PARITY,
+ .bits = CONFIG_UART0_BITS,
+ .stopbits2 = CONFIG_UART0_2STOP,
};
-static uart_dev_t g_uartport =
+static uart_dev_t g_uart0port =
{
.recv =
{
- .size = CONFIG_UART_RXBUFSIZE,
- .buffer = g_uartrxbuffer,
+ .size = CONFIG_UART0_RXBUFSIZE,
+ .buffer = g_uart0rxbuffer,
},
.xmit =
{
- .size = CONFIG_UART_TXBUFSIZE,
- .buffer = g_uarttxbuffer,
+ .size = CONFIG_UART0_TXBUFSIZE,
+ .buffer = g_uart0txbuffer,
},
.ops = &g_uart_ops,
- .priv = &g_uartpriv,
+ .priv = &g_uart0priv,
+};
+#endif
+
+/* This describes the state of the UART1 port. */
+
+#ifdef CONFIG_SAM34_UART1
+static struct up_dev_s g_uart1priv =
+{
+ .usartbase = SAM_UART1_BASE,
+ .baud = CONFIG_UART1_BAUD,
+ .irq = SAM_IRQ_UART1,
+ .parity = CONFIG_UART1_PARITY,
+ .bits = CONFIG_UART1_BITS,
+ .stopbits2 = CONFIG_UART1_2STOP,
+};
+
+static uart_dev_t g_uart1port =
+{
+ .recv =
+ {
+ .size = CONFIG_UART1_RXBUFSIZE,
+ .buffer = g_uart1rxbuffer,
+ },
+ .xmit =
+ {
+ .size = CONFIG_UART1_TXBUFSIZE,
+ .buffer = g_uart1txbuffer,
+ },
+ .ops = &g_uart_ops,
+ .priv = &g_uart1priv,
};
#endif
@@ -873,37 +686,38 @@ static int up_setup(struct uart_dev_s *dev)
* as the timing source
*/
- regval = (USART_MR_MODE_NORMAL|USART_MR_USCLKS_MCK);
+ regval = (UART_MR_MODE_NORMAL | SAM_MR_USCLKS);
/* OR in settings for the selected number of bits */
if (priv->bits == 5)
{
- regval |= USART_MR_CHRL_5BITS; /* 5 bits */
+ regval |= UART_MR_CHRL_5BITS; /* 5 bits */
}
else if (priv->bits == 6)
{
- regval |= USART_MR_CHRL_6BITS; /* 6 bits */
+ regval |= UART_MR_CHRL_6BITS; /* 6 bits */
}
else if (priv->bits == 7)
{
- regval |= USART_MR_CHRL_7BITS; /* 7 bits */
+ regval |= UART_MR_CHRL_7BITS; /* 7 bits */
}
#ifdef HAVE_USART
-#ifdef CONFIG_SAM34_UART
- /* UART does not support 9bit mode */
-
- else if (priv->bits == 9 && priv->usartbase != SAM_UART_BASE)
-#else
- else if (priv->bits == 9) /* Only USARTS */
+ else if (priv->bits == 9
+#if defined(CONFIG_SAM34_UART0)
+ && priv->usartbase != SAM_UART0_BASE
#endif
+#if defined(CONFIG_SAM34_UART1)
+ && priv->usartbase != SAM_UART1_BASE
+#endif
+ )
{
- regval |= USART_MR_MODE9; /* 9 bits */
+ regval |= UART_MR_MODE9; /* 9 bits */
}
#endif
else /* if (priv->bits == 8) */
{
- regval |= USART_MR_CHRL_8BITS; /* 8 bits (default) */
+ regval |= UART_MR_CHRL_8BITS; /* 8 bits (default) */
}
/* OR in settings for the selected parity */
@@ -925,20 +739,22 @@ static int up_setup(struct uart_dev_s *dev)
if (priv->stopbits2)
{
- regval |= USART_MR_NBSTOP_2;
+ regval |= UART_MR_NBSTOP_2;
}
else
{
- regval |= USART_MR_NBSTOP_1;
+ regval |= UART_MR_NBSTOP_1;
}
/* And save the new mode register value */
up_serialout(priv, SAM_UART_MR_OFFSET, regval);
- /* Configure the console baud */
+ /* Configure the console baud. NOTE: Oversampling by 8 is not supported.
+ * This may limit BAUD rates for lower USART clocks.
+ */
- regval = (SAM_MCK_FREQUENCY + (priv->baud << 3))/(priv->baud << 4);
+ regval = (SAM_USART_CLOCK + (priv->baud << 3))/(priv->baud << 4);
up_serialout(priv, SAM_UART_BRGR_OFFSET, regval);
/* Enable receiver & transmitter */
@@ -1042,10 +858,17 @@ static int up_interrupt(int irq, void *context)
int passes;
bool handled;
-#ifdef CONFIG_SAM34_UART
- if (g_uartpriv.irq == irq)
+#ifdef CONFIG_SAM34_UART0
+ if (g_uart0priv.irq == irq)
{
- dev = &g_uartport;
+ dev = &g_uart0port;
+ }
+ else
+#endif
+#ifdef CONFIG_SAM34_UART1
+ if (g_uart1priv.irq == irq)
+ {
+ dev = &g_uart1port;
}
else
#endif
@@ -1094,7 +917,7 @@ static int up_interrupt(int irq, void *context)
/* Get the UART/USART status (we are only interested in the unmasked interrupts). */
priv->sr = up_serialin(priv, SAM_UART_SR_OFFSET); /* Save for error reporting */
- pending = priv->sr & priv->imr; /* Mask out disabled interrupt sources */
+ pending = priv->sr & priv->imr; /* Mask out disabled interrupt sources */
/* Handle an incoming, receive byte. RXRDY: At least one complete character
* has been received and US_RHR has not yet been read.
@@ -1285,6 +1108,7 @@ static void up_txint(struct uart_dev_s *dev, bool enable)
priv->imr &= ~UART_INT_TXRDY;
up_disableint(priv);
}
+
irqrestore(flags);
}
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-06 10:44:30 +0000