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comparison target-utils/libcommon/serio.S @ 393:d7591faa1258

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target-utils serial I/O made consistent with other projects
author Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
date Wed, 11 Jun 2014 17:22:55 +0000
parents 40f607bb0a2c
children
comparison
equal deleted inserted replaced
392:134c047c1269 393:d7591faa1258
18 serial_in_poll: 18 serial_in_poll:
19 ldr r1, =uart_base 19 ldr r1, =uart_base
20 ldr r2, [r1] 20 ldr r2, [r1]
21 ldrb r3, [r2, #NS16550_LSR] 21 ldrb r3, [r2, #NS16550_LSR]
22 tst r3, #NS16550_LSR_DR 22 tst r3, #NS16550_LSR_DR
23 mvneq r0, #1 23 ldrneb r0, [r2, #NS16550_RBR]
24 bxeq lr 24 mvneq r0, #0
25 ldrb r0, [r2, #NS16550_RBR]
26 bx lr 25 bx lr
26
27 .global serial_flush
28 serial_flush:
29 ldr r1, =uart_base
30 ldr r2, [r1]
31 1: ldrb r3, [r2, #NS16550_LSR]
32 tst r3, #NS16550_LSR_TEMP
33 beq 1b
34 bx lr