Added serial driver

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@201 42af7a65-404d-4744-a932-0658087f49c3

arch/arm/include/lpc214x/irq.h

-/************************************************************
+/****************************************************************************
  * arch/lpc214x/irq.h
  *
  *   Copyright (C) 2007 Gregory Nutt. All rights reserved.
@@ -31,7 +31,7 @@
  * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  * POSSIBILITY OF SUCH DAMAGE.
  *
- ************************************************************/
+ ****************************************************************************/
 
 /* This file should never be included directed but, rather,
  * only indirectly through nuttx/irq.h
@@ -40,13 +40,13 @@
 #ifndef __ARCH_LPC214X_IRQ_H
 #define __ARCH_LPC214X_IRQ_H
 
-/************************************************************
+/****************************************************************************
  * Included Files
- ************************************************************/
+ ****************************************************************************/
 
-/************************************************************
+/****************************************************************************
  * Definitions
- ************************************************************/
+ ****************************************************************************/
 
 /* LPC214X Interrupts */
 
@@ -76,25 +76,25 @@
 
 #define NR_IRQS               23
 
-/************************************************************
+/****************************************************************************
  * Public Types
- ************************************************************/
+ ****************************************************************************/
 
 #ifndef __ASSEMBLY__
 typedef void (*vic_vector_t)(uint32 *regs);
 #endif
 
-/************************************************************
+/****************************************************************************
  * Inline functions
- ************************************************************/
+ ****************************************************************************/
 
-/************************************************************
+/****************************************************************************
  * Public Variables
- ************************************************************/
+ ****************************************************************************/
 
-/************************************************************
+/****************************************************************************
  * Public Function Prototypes
- ************************************************************/
+ ****************************************************************************/
 
 #ifndef __ASSEMBLY__
 #ifdef __cplusplus

arch/arm/src/lpc214x/Make.defs

@@ -45,4 +45,6 @@ CMN_CSRCS	= up_allocateheap.c up_assert.c up_blocktask.c up_copystate.c \
 		  up_undefinedinsn.c up_usestack.c
 
 CHIP_ASRCS	= lpc214x_lowputc.S
-CHIP_CSRCS	= lpc214x_decodeirq.c lpc214x_irq.c lpc214x_timerisr.c
+CHIP_CSRCS	= lpc214x_decodeirq.c lpc214x_irq.c lpc214x_timerisr.c \
+		  lpc214x_serial.c
+	

arch/arm/src/lpc214x/lpc214x_lowputc.S

@@ -166,7 +166,7 @@ up_lowsetup:
 
 	ldr	r0, =LPC214X_PINSEL0
 	ldr	r1, [r0]
-	ldr	r2, =LPC214X_UART_PINMASK
+	ldr	r2, =~LPC214X_UART_PINMASK
 	and	r1, r2
 	ldr	r2, =LPC214X_UART_PINSEL
 	orr	r1, r2

arch/arm/src/lpc214x/lpc214x_uart.h

@@ -63,7 +63,8 @@
 #define LPC214X_IER_ERBFI          (1 << 0)    /* Enable receive data available int */
 #define LPC214X_IER_ETBEI          (1 << 1)    /* Enable THR empty Interrupt */
 #define LPC214X_IER_ELSI           (1 << 2)    /* Enable receive line status int */
-#define LPC214X_IER_EDSSI          (1 << 3)    /* Enable MODEM atatus interrupt */
+#define LPC214X_IER_EDSSI          (1 << 3)    /* Enable MODEM atatus interrupt (2146/6/8 UART1 Only) */
+#define LPC214X_IER_ALLIE          0x0f        /* All interrupts */
 
 /* Interrupt ID Register(IIR) bit definitions */