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Diffstat (limited to 'code/fe310/eos/uart.c')
-rw-r--r--code/fe310/eos/uart.c93
1 files changed, 0 insertions, 93 deletions
diff --git a/code/fe310/eos/uart.c b/code/fe310/eos/uart.c
deleted file mode 100644
index e9349a7..0000000
--- a/code/fe310/eos/uart.c
+++ /dev/null
@@ -1,93 +0,0 @@
-#include <stdlib.h>
-#include <stdint.h>
-#include <string.h>
-
-#include "encoding.h"
-#include "platform.h"
-
-#include "eos.h"
-#include "interrupt.h"
-#include "event.h"
-
-#include "uart.h"
-#include "irq_def.h"
-
-static eos_uart_handler_t uart_handler[EOS_UART_MAX_ETYPE];
-
-static void uart_handle_evt(unsigned char type, unsigned char *buffer, uint16_t len) {
- unsigned char idx = (type & ~EOS_EVT_MASK) - 1;
-
- if ((idx < EOS_UART_MAX_ETYPE) && uart_handler[idx]) {
- uart_handler[idx](type);
- } else {
- eos_evtq_bad_handler(type, buffer, len);
- }
-}
-
-static void uart_handle_intr(void) {
- if (UART0_REG(UART_REG_IP) & UART_IP_TXWM) {
- UART0_REG(UART_REG_IE) &= ~UART_IP_TXWM;
- eos_evtq_push_isr(EOS_EVT_UART | EOS_UART_ETYPE_TX, NULL, 0);
- }
- if (UART0_REG(UART_REG_IP) & UART_IP_RXWM) {
- UART0_REG(UART_REG_IE) &= ~UART_IP_RXWM;
- eos_evtq_push_isr(EOS_EVT_UART | EOS_UART_ETYPE_RX, NULL, 0);
- }
-}
-
-void eos_uart_init(void) {
- int i;
-
- for (i=0; i<EOS_UART_MAX_ETYPE; i++) {
- uart_handler[i] = NULL;
- }
- eos_evtq_set_handler(EOS_EVT_UART, uart_handle_evt);
- eos_intr_set(INT_UART0_BASE, IRQ_PRIORITY_UART, uart_handle_intr);
-}
-
-void eos_uart_set_handler(unsigned char type, eos_uart_handler_t handler) {
- if (type && (type <= EOS_UART_MAX_ETYPE)) uart_handler[type - 1] = handler;
-}
-
-void eos_uart_txwm_set(uint8_t wm) {
- UART0_REG(UART_REG_TXCTRL) &= ~UART_TXWM(0xFFFF);
- UART0_REG(UART_REG_TXCTRL) |= UART_TXWM(wm);
- UART0_REG(UART_REG_IE) |= UART_IP_TXWM;
-}
-
-void eos_uart_txwm_clear(void) {
- UART0_REG(UART_REG_IE) &= ~UART_IP_TXWM;
-}
-
-void eos_uart_rxwm_set(uint8_t wm) {
- UART0_REG(UART_REG_RXCTRL) &= ~UART_RXWM(0xFFFF);
- UART0_REG(UART_REG_RXCTRL) |= UART_RXWM(wm);
- UART0_REG(UART_REG_IE) |= UART_IP_RXWM;
-}
-
-void eos_uart_rxwm_clear(void) {
- UART0_REG(UART_REG_IE) &= ~UART_IP_RXWM;
-}
-
-int eos_uart_putc(int c, char b) {
- if (b) {
- while (UART0_REG(UART_REG_TXFIFO) & 0x80000000);
- UART0_REG(UART_REG_TXFIFO) = c & 0xff;
- } else {
- if (UART0_REG(UART_REG_TXFIFO) & 0x80000000) return EOS_ERR_FULL;
- UART0_REG(UART_REG_TXFIFO) = c & 0xff;
- }
- return EOS_OK;
-}
-
-int eos_uart_getc(char b) {
- volatile uint32_t r;
-
- if (b) {
- while ((r = UART0_REG(UART_REG_RXFIFO)) & 0x80000000);
- } else {
- r = UART0_REG(UART_REG_RXFIFO);
- if (r & 0x80000000) return EOS_ERR_EMPTY;
- }
- return r & 0xff;
-} \ No newline at end of file