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comparison source/uart_pl011.c @ 0:ed10291ff195

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author mir3636
date Sun, 06 Jan 2019 19:27:03 +0900
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-1:000000000000 0:ed10291ff195
1 /*
2 * pl011.c
3 *
4 * Created on: Nov 20, 2016
5 * Author: Mahdi Amiri
6 */
7 #include <fvp.h>
8 #include <types.h>
9 #include <defs.h>
10
11 uint uart_lock; //Mutex lock
12
13 void uartinit_fvp(){
14 /* Enable pl011 interrupts */
15 *(volatile uint*) FVP_PL011_UARTIMSC = FVP_PL011_UARTIMSC_RXIM;
16
17 /* Enable pl011 controller */
18 *(volatile uint*) FVP_PL011_UARTCR =
19 *(volatile uint*) FVP_PL011_UARTCR | FVP_PL011_UARTCR_UARTEN | FVP_PL011_UARTCR_TXE | FVP_PL011_UARTCR_RXE;
20 //outw(UARTCR,inw(UARTCR) | UARTCR_UARTEN | UARTCR_TXE | UARTCR_RXE);
21 //enable_irq(37,1);
22 uart_lock=0; // Open Mutex lock
23 }
24
25 void uartputc_fvp(uint c)
26 {
27 if(c=='\n') {
28 /* Wait until the buffer is empty */
29 while (*(volatile uint*)(FVP_PL011_UARTFR) & (FVP_PL011_UARTFR_TXFF));
30 //while (inw(UARTFR) & UARTFR_TXFF);
31 /* Put the character into the register */
32 *(volatile uint*) FVP_PL011_UARTDR = 0x0d;
33 //outw(UARTDR , c);
34 }
35 while (*(volatile uint*)(FVP_PL011_UARTFR) & (FVP_PL011_UARTFR_TXFF));
36 *(volatile uint*) FVP_PL011_UARTDR = c;
37
38
39 }
40
41 uint uartgetc_fvp()
42 {
43 /* Wait until the buffer is empty */
44 while (*(volatile uint*)(FVP_PL011_UARTFR) & (FVP_PL011_UARTFR_RXFE));
45 //while (inw(UARTFR) & UARTFR_RXFE);
46 /* Put the character into the register */
47 return *(volatile uint*) FVP_PL011_UARTDR;
48 //outw(UARTDR , c);
49 }