From 392e8802486cb573b916e746010e141a75f507e6 Mon Sep 17 00:00:00 2001 From: Kevin Date: Sat, 15 Nov 2014 09:58:27 +0800 Subject: init android origin source code --- .../arch/arm/mach-msm/include/mach/debug-macro.S | 66 ++++++++++++++++++++++ 1 file changed, 66 insertions(+) create mode 100644 ANDROID_3.4.5/arch/arm/mach-msm/include/mach/debug-macro.S (limited to 'ANDROID_3.4.5/arch/arm/mach-msm/include/mach/debug-macro.S') diff --git a/ANDROID_3.4.5/arch/arm/mach-msm/include/mach/debug-macro.S b/ANDROID_3.4.5/arch/arm/mach-msm/include/mach/debug-macro.S new file mode 100644 index 00000000..3ffd8668 --- /dev/null +++ b/ANDROID_3.4.5/arch/arm/mach-msm/include/mach/debug-macro.S @@ -0,0 +1,66 @@ +/* + * + * Copyright (C) 2007 Google, Inc. + * Copyright (c) 2011, Code Aurora Forum. All rights reserved. + * Author: Brian Swetland + * + * This software is licensed under the terms of the GNU General Public + * License version 2, as published by the Free Software Foundation, and + * may be copied, distributed, and modified under those terms. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + */ + +#include +#include + + .macro addruart, rp, rv, tmp +#ifdef MSM_DEBUG_UART_PHYS + ldr \rp, =MSM_DEBUG_UART_PHYS + ldr \rv, =MSM_DEBUG_UART_BASE +#endif + .endm + + .macro senduart, rd, rx +#ifdef CONFIG_MSM_HAS_DEBUG_UART_HS + @ Write the 1 character to UARTDM_TF + str \rd, [\rx, #0x70] +#else + teq \rx, #0 + strne \rd, [\rx, #0x0C] +#endif + .endm + + .macro waituart, rd, rx +#ifdef CONFIG_MSM_HAS_DEBUG_UART_HS + @ check for TX_EMT in UARTDM_SR + ldr \rd, [\rx, #0x08] + tst \rd, #0x08 + bne 1002f + @ wait for TXREADY in UARTDM_ISR +1001: ldr \rd, [\rx, #0x14] + tst \rd, #0x80 + beq 1001b +1002: + @ Clear TX_READY by writing to the UARTDM_CR register + mov \rd, #0x300 + str \rd, [\rx, #0x10] + @ Write 0x1 to NCF register + mov \rd, #0x1 + str \rd, [\rx, #0x40] + @ UARTDM reg. Read to induce delay + ldr \rd, [\rx, #0x08] +#else + @ wait for TX_READY +1001: ldr \rd, [\rx, #0x08] + tst \rd, #0x04 + beq 1001b +#endif + .endm + + .macro busyuart, rd, rx + .endm -- cgit