GK SDK 源码库: XMIPCLinuxV100R005C00SPC030 (kernel/tools/open_source excluded)

2026-09-06 03:52:57 +08:00
commit b1928b41c0
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+/*
+ * Copyright (c) 2018-2019, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <arch.h>
+#include <asm_macros.S>
+#include <console_macros.S>
+#include <assert_macros.S>
+#include "imx_uart.h"
+
+	.globl	console_imx_uart_register
+	.globl	console_imx_uart_putc
+	.globl	console_imx_uart_getc
+	.globl	console_imx_uart_flush
+
+func console_imx_uart_register
+	push	{r4, lr}
+	mov	r4, r3
+	cmp	r4, #0
+	beq	register_fail
+	str	r0, [r4, #CONSOLE_T_BASE]
+
+	bl	console_imx_uart_core_init
+	cmp	r0, #0
+	bne	register_fail
+
+	mov	r0, r4
+	pop	{r4, lr}
+	finish_console_register imx_uart putc=1, getc=1, flush=1
+
+register_fail:
+	pop	{r4, pc}
+endfunc console_imx_uart_register
+
+func console_imx_uart_putc
+	ldr	r1, [r1, #CONSOLE_T_BASE]
+	b console_imx_uart_core_putc
+endfunc console_imx_uart_putc
+
+func console_imx_uart_getc
+	ldr	r0, [r0, #CONSOLE_T_BASE]
+	b console_imx_uart_core_getc
+endfunc console_imx_uart_getc
+
+func console_imx_uart_flush
+	ldr	r0, [r0, #CONSOLE_T_BASE]
+	b console_imx_uart_core_flush
+endfunc console_imx_uart_flush