From 40ad880bdd2eb22aca027cdeecd591e8338281e3 Mon Sep 17 00:00:00 2001 From: wuyangyong Date: Mon, 5 Sep 2011 15:17:57 +0000 Subject: merge all of C source code into cpuport.c. (PIC32) git-svn-id: https://rt-thread.googlecode.com/svn/trunk@1697 bbd45198-f89e-11dd-88c7-29a3b14d5316 --- libcpu/mips/pic32/cpuport.c | 96 +++++++++++++++++++++++++++++++++++++++++++ libcpu/mips/pic32/interrupt.c | 27 ------------ libcpu/mips/pic32/stack.c | 92 ----------------------------------------- 3 files changed, 96 insertions(+), 119 deletions(-) create mode 100644 libcpu/mips/pic32/cpuport.c delete mode 100644 libcpu/mips/pic32/interrupt.c delete mode 100644 libcpu/mips/pic32/stack.c (limited to 'libcpu') diff --git a/libcpu/mips/pic32/cpuport.c b/libcpu/mips/pic32/cpuport.c new file mode 100644 index 0000000000..180ea7a942 --- /dev/null +++ b/libcpu/mips/pic32/cpuport.c @@ -0,0 +1,96 @@ +/* + * File : cpuport.c + * This file is part of RT-Thread RTOS + * COPYRIGHT (C) 2009 - 2011, RT-Thread Development Team + * + * The license and distribution terms for this file may be + * found in the file LICENSE in this distribution or at + * http://www.rt-thread.org/license/LICENSE + * + * Change Logs: + * Date Author Notes + * 20011-05-23 aozima the first version for PIC32. + * 20011-09-05 aozima merge all of C source code into cpuport.c. + */ +#include + +/** + * @addtogroup PIC32 + */ +/*@{*/ + +/* exception and interrupt handler table */ +rt_uint32_t rt_interrupt_from_thread, rt_interrupt_to_thread; +rt_uint32_t rt_thread_switch_interrput_flag; + +rt_uint32_t __attribute__((nomips16)) _get_gp(void) +{ + rt_uint32_t result; + + // get the gp reg + asm volatile("move %0, $28" : "=r"(result)); + + return result; +} + +/** + * This function will initialize thread stack + * + * @param tentry the entry of thread + * @param parameter the parameter of entry + * @param stack_addr the beginning stack address + * @param texit the function will be called when thread exit + * + * @return stack address + */ +rt_uint8_t *rt_hw_stack_init(void *tentry, void *parameter, rt_uint8_t *stack_addr, void *texit) +{ + rt_uint32_t *stk; + + /** Start at stack top */ + stk = (rt_uint32_t *)stack_addr; + *(stk) = (rt_uint32_t) tentry; /* pc: Entry Point */ + *(--stk) = (rt_uint32_t) 0x00800000; /* c0_cause: IV=1, */ + *(--stk) = (rt_uint32_t) 0; /* c0_badvaddr */ + *(--stk) = (rt_uint32_t) 0; /* lo */ + *(--stk) = (rt_uint32_t) 0; /* hi */ + *(--stk) = (rt_uint32_t) 1; /* C0_SR: IE = En, */ + *(--stk) = (rt_uint32_t) texit; /* 31 ra */ + *(--stk) = (rt_uint32_t) 0x0000001e; /* 30 s8 */ + *(--stk) = (rt_uint32_t) stack_addr; /* 29 sp */ + *(--stk) = (rt_uint32_t) _get_gp(); /* 28 gp */ + *(--stk) = (rt_uint32_t) 0x0000001b; /* 27 k1 */ + *(--stk) = (rt_uint32_t) 0x0000001a; /* 26 k0 */ + *(--stk) = (rt_uint32_t) 0x00000019; /* 25 t9 */ + *(--stk) = (rt_uint32_t) 0x00000018; /* 24 t8 */ + *(--stk) = (rt_uint32_t) 0x00000017; /* 23 s7 */ + *(--stk) = (rt_uint32_t) 0x00000016; /* 22 s6 */ + *(--stk) = (rt_uint32_t) 0x00000015; /* 21 s5 */ + *(--stk) = (rt_uint32_t) 0x00000014; /* 20 s4 */ + *(--stk) = (rt_uint32_t) 0x00000013; /* 19 s3 */ + *(--stk) = (rt_uint32_t) 0x00000012; /* 18 s2 */ + *(--stk) = (rt_uint32_t) 0x00000011; /* 17 s1 */ + *(--stk) = (rt_uint32_t) 0x00000010; /* 16 s0 */ + *(--stk) = (rt_uint32_t) 0x0000000f; /* 15 t7 */ + *(--stk) = (rt_uint32_t) 0x0000000e; /* 14 t6 */ + *(--stk) = (rt_uint32_t) 0x0000000d; /* 13 t5 */ + *(--stk) = (rt_uint32_t) 0x0000000c; /* 12 t4 */ + *(--stk) = (rt_uint32_t) 0x0000000b; /* 11 t3 */ + *(--stk) = (rt_uint32_t) 0x0000000a; /* 10 t2 */ + *(--stk) = (rt_uint32_t) 0x00000009; /* 9 t1 */ + *(--stk) = (rt_uint32_t) 0x00000008; /* 8 t0 */ + *(--stk) = (rt_uint32_t) 0x00000007; /* 7 a3 */ + *(--stk) = (rt_uint32_t) 0x00000006; /* 6 a2 */ + *(--stk) = (rt_uint32_t) 0x00000005; /* 5 a1 */ + *(--stk) = (rt_uint32_t) parameter; /* 4 a0 */ + *(--stk) = (rt_uint32_t) 0x00000003; /* 3 v1 */ + *(--stk) = (rt_uint32_t) 0x00000002; /* 2 v0 */ + *(--stk) = (rt_uint32_t) 0x00000001; /* 1 at */ + *(--stk) = (rt_uint32_t) 0x00000000; /* 0 zero */ + + /* return task's current stack address */ + return (rt_uint8_t *)stk; +} + + +/*@}*/ diff --git a/libcpu/mips/pic32/interrupt.c b/libcpu/mips/pic32/interrupt.c deleted file mode 100644 index 5e63295b6c..0000000000 --- a/libcpu/mips/pic32/interrupt.c +++ /dev/null @@ -1,27 +0,0 @@ -/* - * File : interrupt.c - * This file is part of RT-Thread RTOS - * COPYRIGHT (C) 2006 - 2010, RT-Thread Development Team - * - * The license and distribution terms for this file may be - * found in the file LICENSE in this distribution or at - * http://www.rt-thread.org/license/LICENSE - * - * Change Logs: - * Date Author Notes - * 2011-05-23 aozima first implementation for PIC32. - */ - -#include - -/** - * @addtogroup PIC32 - */ -/*@{*/ - -rt_uint32_t rt_interrupt_from_thread, rt_interrupt_to_thread; -rt_uint32_t rt_thread_switch_interrput_flag; - - -/*@}*/ - diff --git a/libcpu/mips/pic32/stack.c b/libcpu/mips/pic32/stack.c deleted file mode 100644 index f7510ce4ce..0000000000 --- a/libcpu/mips/pic32/stack.c +++ /dev/null @@ -1,92 +0,0 @@ -/* - * File : stack.c - * This file is part of RT-Thread RTOS - * COPYRIGHT (C) 2006, RT-Thread Development Team - * - * The license and distribution terms for this file may be - * found in the file LICENSE in this distribution or at - * http://www.rt-thread.org/license/LICENSE - * - * Change Logs: - * Date Author Notes - * 2011-05-23 aozima first implementation for PIC32. - */ - -#include - -/** - * @addtogroup PIC32 - */ -/*@{*/ - -rt_uint32_t __attribute__((nomips16)) _get_gp(void) -{ - rt_uint32_t result; - - // get the gp reg - asm volatile("move %0, $28" : "=r"(result)); - - return result; -} - -/** - * This function will initialize thread stack - * - * @param tentry the entry of thread - * @param parameter the parameter of entry - * @param stack_addr the beginning stack address - * @param texit the function will be called when thread exit - * - * @return stack address - */ -rt_uint8_t *rt_hw_stack_init(void *tentry, void *parameter, rt_uint8_t *stack_addr, void *texit) -{ - rt_uint32_t *stk; - - /** Start at stack top */ - stk = (rt_uint32_t *)stack_addr; - *(stk) = (rt_uint32_t) tentry; /* pc: Entry Point */ - *(--stk) = (rt_uint32_t) 0x00800000; /* c0_cause: IV=1, */ - *(--stk) = (rt_uint32_t) 0; /* c0_badvaddr */ - *(--stk) = (rt_uint32_t) 0; /* lo */ - *(--stk) = (rt_uint32_t) 0; /* hi */ - *(--stk) = (rt_uint32_t) 1; /* C0_SR: IE = En, */ - *(--stk) = (rt_uint32_t) texit; /* 31 ra */ - *(--stk) = (rt_uint32_t) 0x0000001e; /* 30 s8 */ - *(--stk) = (rt_uint32_t) stack_addr; /* 29 sp */ - *(--stk) = (rt_uint32_t) _get_gp(); /* 28 gp */ - *(--stk) = (rt_uint32_t) 0x0000001b; /* 27 k1 */ - *(--stk) = (rt_uint32_t) 0x0000001a; /* 26 k0 */ - *(--stk) = (rt_uint32_t) 0x00000019; /* 25 t9 */ - *(--stk) = (rt_uint32_t) 0x00000018; /* 24 t8 */ - *(--stk) = (rt_uint32_t) 0x00000017; /* 23 s7 */ - *(--stk) = (rt_uint32_t) 0x00000016; /* 22 s6 */ - *(--stk) = (rt_uint32_t) 0x00000015; /* 21 s5 */ - *(--stk) = (rt_uint32_t) 0x00000014; /* 20 s4 */ - *(--stk) = (rt_uint32_t) 0x00000013; /* 19 s3 */ - *(--stk) = (rt_uint32_t) 0x00000012; /* 18 s2 */ - *(--stk) = (rt_uint32_t) 0x00000011; /* 17 s1 */ - *(--stk) = (rt_uint32_t) 0x00000010; /* 16 s0 */ - *(--stk) = (rt_uint32_t) 0x0000000f; /* 15 t7 */ - *(--stk) = (rt_uint32_t) 0x0000000e; /* 14 t6 */ - *(--stk) = (rt_uint32_t) 0x0000000d; /* 13 t5 */ - *(--stk) = (rt_uint32_t) 0x0000000c; /* 12 t4 */ - *(--stk) = (rt_uint32_t) 0x0000000b; /* 11 t3 */ - *(--stk) = (rt_uint32_t) 0x0000000a; /* 10 t2 */ - *(--stk) = (rt_uint32_t) 0x00000009; /* 9 t1 */ - *(--stk) = (rt_uint32_t) 0x00000008; /* 8 t0 */ - *(--stk) = (rt_uint32_t) 0x00000007; /* 7 a3 */ - *(--stk) = (rt_uint32_t) 0x00000006; /* 6 a2 */ - *(--stk) = (rt_uint32_t) 0x00000005; /* 5 a1 */ - *(--stk) = (rt_uint32_t) parameter; /* 4 a0 */ - *(--stk) = (rt_uint32_t) 0x00000003; /* 3 v1 */ - *(--stk) = (rt_uint32_t) 0x00000002; /* 2 v0 */ - *(--stk) = (rt_uint32_t) 0x00000001; /* 1 at */ - *(--stk) = (rt_uint32_t) 0x00000000; /* 0 zero */ - - /* return task's current stack address */ - return (rt_uint8_t *)stk; -} - -/*@}*/ - -- cgit v1.3.1