/**************************************************************************** * arch/mips/common/up_internal.h * * Copyright (C) 2011, 2012 Gregory Nutt. All rights reserved. * Author: Gregory Nutt * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in * the documentation and/or other materials provided with the * distribution. * 3. Neither the name NuttX nor the names of its contributors may be * used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. * ****************************************************************************/ #ifndef __ARCH_MIPS_SRC_COMMON_UP_INTERNAL_H #define __ARCH_MIPS_SRC_COMMON_UP_INTERNAL_H /**************************************************************************** * Included Files ****************************************************************************/ #ifndef __ASSEMBLY__ # include # include #endif /**************************************************************************** * Pre-processor Definitions ****************************************************************************/ /* Bring-up debug configurations. These are here (vs defconfig) * because these should only be controlled during low level * board bring-up and not part of normal platform configuration. */ #undef CONFIG_SUPPRESS_INTERRUPTS /* DEFINED: Do not enable interrupts */ #undef CONFIG_SUPPRESS_TIMER_INTS /* DEFINED: No timer */ #undef CONFIG_SUPPRESS_SERIAL_INTS /* DEFINED: Console will poll */ #undef CONFIG_SUPPRESS_UART_CONFIG /* DEFINED: Do not reconfig UART */ #undef CONFIG_DUMP_ON_EXIT /* DEFINED: Dump task state on exit */ /* Determine which (if any) console driver to use. If a console is enabled * and no other console device is specified, then a serial console is * assumed. */ #if !defined(CONFIG_DEV_CONSOLE) || CONFIG_NFILE_DESCRIPTORS <= 0 # undef USE_SERIALDRIVER # undef USE_EARLYSERIALINIT # undef CONFIG_DEV_LOWCONSOLE # undef CONFIG_RAMLOG_CONSOLE #else # if defined(CONFIG_RAMLOG_CONSOLE) # undef USE_SERIALDRIVER # undef USE_EARLYSERIALINIT # undef CONFIG_DEV_LOWCONSOLE # elif defined(CONFIG_DEV_LOWCONSOLE) # undef USE_SERIALDRIVER # undef USE_EARLYSERIALINIT # else # define USE_SERIALDRIVER 1 # define USE_EARLYSERIALINIT 1 # endif #endif /* If some other device is used as the console, then the serial driver may * still be needed. Let's assume that if the upper half serial driver is * built, then the lower half will also be needed. There is no need for * the early serial initialization in this case. */ #if !defined(USE_SERIALDRIVER) && defined(CONFIG_STANDARD_SERIAL) # define USE_SERIALDRIVER 1 #endif /* Determine which device to use as the system logging device */ #ifndef CONFIG_SYSLOG # undef CONFIG_SYSLOG_CHAR # undef CONFIG_RAMLOG_SYSLOG #endif /* Check if an interrupt stack size is configured */ #ifndef CONFIG_ARCH_INTERRUPTSTACK # define CONFIG_ARCH_INTERRUPTSTACK 0 #endif /* In the MIPS model, the state is copied from the stack to the TCB, but * only a referenced is passed to get the state from the TCB. */ #define up_savestate(regs) up_copystate(regs, (uint32_t*)current_regs) #define up_restorestate(regs) (current_regs = regs) /**************************************************************************** * Public Types ****************************************************************************/ #ifndef __ASSEMBLY__ typedef void (*up_vector_t)(void); #endif /**************************************************************************** * Public Variables ****************************************************************************/ #ifndef __ASSEMBLY__ /* This holds a references to the current interrupt level register storage * structure. If is non-NULL only during interrupt processing. */ extern volatile uint32_t *current_regs; /* This is the beginning of heap as provided from up_head.S. This is the * first address in DRAM after the loaded program+bss+idle stack. The end * of the heap is CONFIG_RAM_END */ extern uint32_t g_idle_topstack; /* Address of the saved user stack pointer */ #if CONFIG_ARCH_INTERRUPTSTACK > 3 extern void g_intstackbase; #endif /* These 'addresses' of these values are setup by the linker script. They are * not actual uint32_t storage locations! They are only used meaningfully in the * following way: * * - The linker script defines, for example, the symbol_sdata. * - The declaration extern uint32_t _sdata; makes C happy. C will believe * that the value _sdata is the address of a uint32_t variable _data (it is * not!). * - We can recoved the linker value then by simply taking the address of * of _data. like: uint32_t *pdata = &_sdata; */ extern uint32_t _stext; /* Start of .text */ extern uint32_t _etext; /* End+1 of .text + .rodata */ extern const uint32_t _data_loaddr; /* Start of .data in FLASH */ extern uint32_t _sdata; /* Start of .data */ extern uint32_t _edata; /* End+1 of .data */ extern uint32_t _sbss; /* Start of .bss */ extern uint32_t _ebss; /* End+1 of .bss */ #ifdef CONFIG_ARCH_RAMFUNCS extern uint32_t _sramfunc; /* Start of ramfuncs */ extern uint32_t _eramfunc; /* End+1 of ramfuncs */ extern uint32_t _ramfunc_loadaddr; /* Start of ramfuncs in FLASH */ extern uint32_t _ramfunc_sizeof; /* Size of ramfuncs */ extern uint32_t _bmxdkpba_address; /* BMX register setting */ extern uint32_t _bmxdudba_address; /* BMX register setting */ extern uint32_t _bmxdupba_address; /* BMX register setting */ #endif /* CONFIG_ARCH_RAMFUNCS */ #endif /* __ASSEMBLY__ */ /**************************************************************************** * Inline Functions ****************************************************************************/ /**************************************************************************** * Public Functions ****************************************************************************/ #ifndef __ASSEMBLY__ /* Common Functions *********************************************************/ /* Common functions define in arch/mips/src/common. These may be replaced * with chip-specific functions of the same name if needed. See also * functions prototyped in include/nuttx/arch.h. */ /* Context switching */ extern void up_copystate(uint32_t *dest, uint32_t *src); /* Serial output */ extern void up_puts(const char *str); extern void up_lowputs(const char *str); /* Defined in drivers/lowconsole.c */ #ifdef CONFIG_DEV_LOWCONSOLE extern void lowconsole_init(void); #else # define lowconsole_init() #endif /* Debug */ #ifdef CONFIG_ARCH_STACKDUMP extern void up_dumpstate(void); #else # define up_dumpstate() #endif /* Common MIPS32 functions defined in arch/mips/src/MIPS32 */ /* IRQs */ extern uint32_t *up_doirq(int irq, uint32_t *regs); /* Software interrupt 0 handler */ extern int up_swint0(int irq, FAR void *context); /* Signals */ extern void up_sigdeliver(void); /* Chip-specific functions **************************************************/ /* Chip specific functions defined in arch/mips/src/ */ /* IRQs */ extern void up_irqinitialize(void); extern bool up_pending_irq(int irq); extern void up_clrpend_irq(int irq); /* DMA */ #ifdef CONFIG_ARCH_DMA extern void weak_function up_dmainitialize(void); #endif /* Memory management */ #if CONFIG_MM_REGIONS > 1 void up_addregion(void); #else # define up_addregion() #endif /* Serial output */ extern void up_lowputc(char ch); #if CONFIG_NFILE_DESCRIPTORS > 0 extern void up_earlyserialinit(void); extern void up_serialinit(void); #else # define up_earlyserialinit() # define up_serialinit() #endif /* System timer */ extern void up_timer_initialize(void); /* Network */ #ifdef CONFIG_NET extern void up_netinitialize(void); #else # define up_netinitialize() #endif /* USB */ #ifdef CONFIG_USBDEV extern void up_usbinitialize(void); extern void up_usbuninitialize(void); #else # define up_usbinitialize() # define up_usbuninitialize() #endif #endif /* __ASSEMBLY__ */ #endif /* __ARCH_MIPS_SRC_COMMON_UP_INTERNAL_H */