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added interrupt based uarts.

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This commit is contained in:
Mariano Alvira 2010-03-09 18:23:40 -05:00
parent db145ed8a4
commit 67aed03b1d
17 changed files with 134 additions and 61 deletions
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43
lib/include/uart1.h
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@ -3,16 +3,43 @@
#include <types.h>
#define UART1_CON ((volatile uint32_t *) 0x80005000)
#define UART1_STAT ((volatile uint32_t *) 0x80005004)
#define UART1_DATA ((volatile uint32_t *) 0x80005008)
#define UR1CON ((volatile uint32_t *) 0x8000500c)
#define UT1CON ((volatile uint32_t *) 0x80005010)
#define UART1_CTS ((volatile uint32_t *) 0x80005014)
#define UART1_BR ((volatile uint32_t *) 0x80005018)
#define UCON (0)
/* UCON bits */
#define UCON_SAMP 10
#define UCON_SAMP_8X 0
#define UCON_SAMP_16X 1
#define USTAT (0x04)
#define UDATA (0x08)
#define URXCON (0x0c)
#define UTXCON (0x10)
#define UCTS (0x14)
#define UBRCNT (0x18)
#define UART1_BASE (0x80005000)
#define UART2_BASE (0x8000b000)
#define UART1_UCON ((volatile uint32_t *) ( UART1_BASE + UCON ))
#define UART1_USTAT ((volatile uint32_t *) ( UART1_BASE + USTAT ))
#define UART1_UDATA ((volatile uint32_t *) ( UART1_BASE + UDATA ))
#define UART1_URXCON ((volatile uint32_t *) ( UART1_BASE + URXCON ))
#define UART1_UTXCON ((volatile uint32_t *) ( UART1_BASE + UTXCON ))
#define UART1_UCTS ((volatile uint32_t *) ( UART1_BASE + UCTS ))
#define UART1_UBRCNT ((volatile uint32_t *) ( UART1_BASE + UBRCNT ))
#define UART2_UCON ((volatile uint32_t *) ( UART2_BASE + UCON ))
#define UART2_USTAT ((volatile uint32_t *) ( UART2_BASE + USTAT ))
#define UART2_UDATA ((volatile uint32_t *) ( UART2_BASE + UDATA ))
#define UART2_URXCON ((volatile uint32_t *) ( UART2_BASE + URXCON ))
#define UART2_UTXCON ((volatile uint32_t *) ( UART2_BASE + UTXCON ))
#define UART2_UCTS ((volatile uint32_t *) ( UART2_BASE + UCTS ))
#define UART2_UBRCNT ((volatile uint32_t *) ( UART2_BASE + UBRCNT ))
extern volatile uint32_t u1_head, u1_tail;
void uart1_putc(char c);
#define uart1_can_get() (*UART1_URXCON > 0)
uint8_t uart1_getc(void);
#define uart1_can_get() (*UR1CON > 0)
#endif