Added low-level console driver

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@585 42af7a65-404d-4744-a932-0658087f49c3

arch/z16/src/common/up_initialize.c

@@ -160,7 +160,13 @@ void up_initialize(void)
 
   /* Initialize the serial device driver */
 
+#ifdef CONFIG_USE_SERIALDRIVER
   up_serialinit();
+#endif
+
+#ifdef CONFIG_USE_LOWCONSOLE
+  lowconsole_init();
+#endif
 
   /* Initialize the netwok */
 

arch/z16/src/common/up_internal.h

@@ -58,6 +58,17 @@
 #undef  CONFIG_SUPPRESS_UART_CONFIG   /* Do not reconfig UART */
 #undef  CONFIG_DUMP_ON_EXIT           /* Dump task state on exit */
 
+/* Determine which (if any) console driver to use */
+
+#if defined(CONFIG_ARCH_LOWPUTC) || defined(CONFIG_ARCH_LOWGETC) || \
+    CONFIG_NFILE_DESCRIPTORS == 0 || defined(CONFIG_DEV_LOWCONSOLE)
+# define CONFIG_USE_LOWCONSOLE 1
+# define CONFIG_USE_LOWUARTINIT 1
+#elif defined(CONFIG_DEV_CONSOLE) && CONFIG_NFILE_DESCRIPTORS > 0
+# define CONFIG_USE_SERIALDRIVER 1
+# define CONFIG_USE_EARLYSERIALINIT 1
+#endif
+ 
 /* Macros for portability */
 
 #define IN_INTERRUPT             (current_regs != NULL)
@@ -118,12 +129,13 @@ void up_addregion(void);
 
 /* Defined in up_serial.c */
 
-#if CONFIG_NFILE_DESCRIPTORS > 0
+#ifdef CONFIG_USE_SERIALDRIVER
 extern void up_earlyserialinit(void);
 extern void up_serialinit(void);
-#else
+#endif
-# define up_earlyserialinit()
+
-# define up_serialinit()
+#ifdef CONFIG_USE_LOWCONSOLE
+extern void lowconsole_init(void);
 #endif
 
 /* Defined in up_timerisr.c */

arch/z16/src/z16f/z16f_head.S

@@ -40,6 +40,11 @@
 
 #include <nuttx/config.h>
 #include <arch/irq.h>
+#include "common/up_internal.h"
+
+/**************************************************************************
+ * Definitions
+ **************************************************************************/
 
 /**************************************************************************
  * External References / External Definitions
@@ -50,10 +55,9 @@
 #ifdef CONFIG_ARCH_LEDS
 	xref	_up_ledinit:EROM
 #endif
-#if defined(CONFIG_ARCH_LOWPUTC) || defined(CONFIG_ARCH_LOWGETC) || CONFIG_NFILE_DESCRIPTORS == 0
+#if defined(CONFIG_USE_LOWUARTINIT)
 	xref	_z16f_lowuartinit:EROM
-#endif
+#elif defined(CONFIG_USE_EARLYSERIALINIT)
-#if defined(CONFIG_DEV_CONSOLE) && CONFIG_NFILE_DESCRIPTORS > 0
 	xref	_up_earlyserialinit:EROM
 #endif
 	xref	_os_start:EROM
@@ -157,7 +161,7 @@ _z16f_reset:
 #endif
 	/* Perform VERY early UART initialization so that we can use it here */
 
-#if defined(CONFIG_ARCH_LOWPUTC) || defined(CONFIG_ARCH_LOWGETC) || CONFIG_NFILE_DESCRIPTORS == 0
+#ifdef CONFIG_USE_LOWUARTINIT
 	call	_z16f_lowuartinit	/* Initialize the UART for debugging */
 #endif
 	/* Initialize the hardware stack overflow register */
@@ -210,7 +214,7 @@ _z16f_reset8:
 
 	call	_z16f_lowinit		/* Perform low-level hardware initialization */
 
-#if defined(CONFIG_DEV_CONSOLE) && CONFIG_NFILE_DESCRIPTORS > 0
+#ifdef CONFIG_USE_EARLYSERIALINIT
 	/* Perform early serial initialization */
 
 	call	_up_earlyserialinit

arch/z16/src/z16f/z16f_lowuart.S

@@ -40,8 +40,9 @@
 
 #include <nuttx/config.h>
 #include "chip/chip.h"
+#include "common/up_internal.h"
 
-#if defined(CONFIG_ARCH_LOWPUTC) || defined(CONFIG_ARCH_LOWGETC) || CONFIG_NFILE_DESCRIPTORS == 0
+#ifdef CONFIG_USE_LOWUARTINIT
 
 /*************************************************************************
  * External References / External Definitions
@@ -120,6 +121,7 @@ _z16f_lowuartinit:
 	ld.b	Z16F_UART0_CTL0, r0	/* Z16F_UART0_CTL0 = %c0 */
 #endif
 	ret				/* Return */
+#endif /* CONFIG_USE_LOWUARTINIT */
 
 /*************************************************************************
  * Name: _up_lowputc
@@ -222,7 +224,5 @@ _up_lowgetc3:					/* Return value in r0 */
 	ret					/* Return */
 #endif
 
-#endif /* CONFIG_ARCH_LOWPUTC || CONFIG_ARCH_LOWGETC */
-
 	end
 

arch/z16/src/z16f/z16f_serial.c

@@ -55,14 +55,12 @@
 #include "os_internal.h"
 #include "up_internal.h"
 
-#if CONFIG_NFILE_DESCRIPTORS > 0
+#ifdef CONFIG_USE_SERIALDRIVER
 
 /****************************************************************************
  * Definitions
  ****************************************************************************/
 
-#define BASE_BAUD 115200
-
 /* System clock frequency value from ZDS target settings */
 
 extern _Erom unsigned long SYS_CLK_FREQ;
@@ -737,7 +735,7 @@ int up_putc(int ch)
   return ch;
 }
 
-#else /* CONFIG_NFILE_DESCRIPTORS > 0 */
+#else /* CONFIG_USE_SERIALDRIVER */
 
 /****************************************************************************
  * Definitions
@@ -755,11 +753,23 @@ int up_putc(int ch)
   putreg8((ubyte)(ch), Z16F_UART0_TXD)
 #endif
 
+/****************************************************************************
+ * Private Function Prototypes
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Variables
+ ****************************************************************************/
+
 /****************************************************************************
  * Private Functions
  ****************************************************************************/
 
-static void _up_putc(int ch)
+/****************************************************************************
+ * Name: z16f_putc
+ ****************************************************************************/
+
+static void z16f_putc(int ch)
 {
   int tmp;
   for (tmp = 1000 ; tmp > 0 && !z16f_contrde(); tmp--);
@@ -770,6 +780,10 @@ static void _up_putc(int ch)
  * Public Functions
  ****************************************************************************/
 
+/****************************************************************************
+ * Name: up_putc
+ ****************************************************************************/
+
 int up_putc(int ch)
 {
   /* Check for LF */
@@ -778,13 +792,13 @@ int up_putc(int ch)
     {
       /* Output CR before LF */
 
-      _up_putc('\r');
+      z16f_putc('\r');
     }
 
   /* Output character */
 
-  _up_putc(ch);
+  z16f_putc(ch);
   return ch;
 }
 
-#endif /* CONFIG_NFILE_DESCRIPTORS > 0 */
+#endif /* CONFIG_USE_SERIALDRIVER */