/****************************************************************************
*
* Copyright (c) 2012-2015 PX4 Development Team. All rights reserved.
*
* 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 PX4 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.
*
****************************************************************************/
/**
* @file px4fmu2_init.c
*
* PX4FMUv2-specific early startup code. This file implements the
* nsh_archinitialize() function that is called early by nsh during startup.
*
* Code here is run before the rcS script is invoked; it should start required
* subsystems and perform board-specific initialization.
*/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <stdbool.h>
#include <stdio.h>
#include <string.h>
#include <debug.h>
#include <errno.h>
#include <nuttx/arch.h>
#include <nuttx/board.h>
#include <nuttx/spi/spi.h>
#include <nuttx/i2c.h>
#include <nuttx/sdio.h>
#include <nuttx/mmcsd.h>
#include <nuttx/analog/adc.h>
#include <nuttx/mm/gran.h>
#include <stm32.h>
#include "board_config.h"
#include <stm32_uart.h>
#include <arch/board/board.h>
#include <drivers/drv_hrt.h>
#include <drivers/drv_led.h>
#include <systemlib/px4_macros.h>
#include <systemlib/cpuload.h>
#include <systemlib/perf_counter.h>
#include <systemlib/hardfault_log.h>
#if defined(CONFIG_HAVE_CXX) && defined(CONFIG_HAVE_CXXINITIALIZE)
#include <systemlib/systemlib.h>
#endif
/* todo: This is constant but not proper */
__BEGIN_DECLS
extern void led_off(int led);
__END_DECLS
/****************************************************************************
* Pre-Processor Definitions
****************************************************************************/
/* Configuration ************************************************************/
/****************************************************************************
* Protected Functions
****************************************************************************/
#if defined(CONFIG_FAT_DMAMEMORY)
# if !defined(CONFIG_GRAN) || !defined(CONFIG_FAT_DMAMEMORY)
# error microSD DMA support requires CONFIG_GRAN
# endif
#ifdef CONFIG_FAT_DMAMEMORY
static GRAN_HANDLE dma_allocator;
/*
* The DMA heap size constrains the total number of things that can be
* ready to do DMA at a time.
*
* For example, FAT DMA depends on one sector-sized buffer per filesystem plus
* one sector-sized buffer per file.
*
* We use a fundamental alignment / granule size of 64B; this is sufficient
* to guarantee alignment for the largest STM32 DMA burst (16 beats x 32bits).
*/
static uint8_t g_dma_heap[8192] __attribute__((aligned(64)));
static perf_counter_t g_dma_perf;
#endif
static void
dma_alloc_init(void)
{
dma_allocator = gran_initialize(g_dma_heap,
sizeof(g_dma_heap),
7, /* 128B granule - must be > alignment (XXX bug?) */
6); /* 64B alignment */
if (dma_allocator == NULL) {
syslog(LOG_ERR, "[boot] DMA allocator setup FAILED");
} else {
g_dma_perf = perf_alloc(PC_COUNT, "DMA allocations");
}
}
/****************************************************************************
* Public Functions
****************************************************************************/
/*
* DMA-aware allocator stubs for the FAT filesystem.
*/
__EXPORT void *fat_dma_alloc(size_t size);
__EXPORT void fat_dma_free(FAR void *memory, size_t size);
void *
fat_dma_alloc(size_t size)
{
perf_count(g_dma_perf);
return gran_alloc(dma_allocator, size);
}
void
fat_dma_free(FAR void *memory, size_t size)
{
gran_free(dma_allocator, memory, size);
}
#else
# define dma_alloc_init()
#endif
/************************************************************************************
* Name: stm32_boardinitialize
*
* Description:
* All STM32 architectures must provide the following entry point. This entry point
* is called early in the intitialization -- after all memory has been configured
* and mapped but before any devices have been initialized.
*
************************************************************************************/
__EXPORT void
stm32_boardinitialize(void)
{
/* configure SPI interfaces */
stm32_spiinitialize();
/* configure LEDs */
board_led_initialize();
}
/****************************************************************************
* Name: nsh_archinitialize
*
* Description:
* Perform architecture specific initialization
*
****************************************************************************/
static struct spi_dev_s *spi1;
static struct spi_dev_s *spi2;
static struct spi_dev_s *spi4;
static struct sdio_dev_s *sdio;
#include <math.h>
#ifdef __cplusplus
__EXPORT int matherr(struct __exception *e)
{
return 1;
}
#else
__EXPORT int matherr(struct exception *e)
{
return 1;
}
#endif
__EXPORT int nsh_archinitialize(void)
{
/* configure ADC pins */
stm32_configgpio(GPIO_ADC1_IN2); /* BATT_VOLTAGE_SENS */
stm32_configgpio(GPIO_ADC1_IN3); /* BATT_CURRENT_SENS */
stm32_configgpio(GPIO_ADC1_IN4); /* VDD_5V_SENS */
stm32_configgpio(GPIO_ADC1_IN13); /* FMU_AUX_ADC_1 */
stm32_configgpio(GPIO_ADC1_IN14); /* FMU_AUX_ADC_2 */
stm32_configgpio(GPIO_ADC1_IN15); /* PRESSURE_SENS */
/* configure power supply control/sense pins */
stm32_configgpio(GPIO_VDD_5V_PERIPH_EN);
stm32_configgpio(GPIO_VDD_3V3_SENSORS_EN);
stm32_configgpio(GPIO_VDD_BRICK_VALID);
stm32_configgpio(GPIO_VDD_SERVO_VALID);
stm32_configgpio(GPIO_VDD_5V_HIPOWER_OC);
stm32_configgpio(GPIO_VDD_5V_PERIPH_OC);
#if defined(CONFIG_HAVE_CXX) && defined(CONFIG_HAVE_CXXINITIALIZE)
/* run C++ ctors before we go any further */
up_cxxinitialize();
# if defined(CONFIG_EXAMPLES_NSH_CXXINITIALIZE)
# error CONFIG_EXAMPLES_NSH_CXXINITIALIZE Must not be defined! Use CONFIG_HAVE_CXX and CONFIG_HAVE_CXXINITIALIZE.
# endif
#else
# error platform is dependent on c++ both CONFIG_HAVE_CXX and CONFIG_HAVE_CXXINITIALIZE must be defined.
#endif
/* configure the high-resolution time/callout interface */
hrt_init();
/* configure the DMA allocator */
dma_alloc_init();
/* configure CPU load estimation */
#ifdef CONFIG_SCHED_INSTRUMENTATION
cpuload_initialize_once();
#endif
/* set up the serial DMA polling */
static struct hrt_call serial_dma_call;
struct timespec ts;
/*
* Poll at 1ms intervals for received bytes that have not triggered
* a DMA event.
*/
ts.tv_sec = 0;
ts.tv_nsec = 1000000;
hrt_call_every(&serial_dma_call,
ts_to_abstime(&ts),
ts_to_abstime(&ts),
(hrt_callout)stm32_serial_dma_poll,
NULL);
#if defined(CONFIG_STM32_BBSRAM)
/* NB. the use of the console requires the hrt running
* to poll the DMA
*/
/* Using Battery Backed Up SRAM */
int filesizes[CONFIG_STM32_BBSRAM_FILES+1] = BSRAM_FILE_SIZES;
int nfc = stm32_bbsraminitialize(BBSRAM_PATH, filesizes);
syslog(LOG_INFO, "[boot] %d Battery Backed Up File(s) \n",nfc);
#if defined(CONFIG_STM32_SAVE_CRASHDUMP)
/* Panic Logging in Battery Backed Up Files */
/*
* In an ideal world, if a fault happens in flight the
* system save it to BBSRAM will then reboot. Upon
* rebooting, the system will log the fault to disk, recover
* the flight state and continue to fly. But if there is
* a fault on the bench or in the air that prohibit the recovery
* or committing the log to disk, the things are too broken to
* fly. So the question is:
*
* Did we have a hard fault and not make it far enough
* through the boot sequence to commit the fault data to
* the SD card?
*/
/* Do we have an uncommitted hard fault in BBSRAM?
* - this will be reset after a successful commit to SD
*/
int hadCrash = hardfault_check_status("boot");
if (hadCrash == OK) {
syslog(LOG_INFO, "[boot] There was a hard fault hit the SPACE BAR to halt the system!\n");
/* Yes. So add one to the boot count - this will be reset after a successful
* commit to SD
*/
int reboots = hardfault_increment_reboot("boot",false);
/* Also end the misery for a user that holds for a key down on the console */
int bytesWaiting;
ioctl(fileno(stdin), FIONREAD, (unsigned long)((uintptr_t) &bytesWaiting));
if (reboots > 2 || bytesWaiting != 0 ) {
/* Since we can not commit the fault dump to disk. display it
* to the console.
*/
hardfault_write("boot", fileno(stdout), HARDFAULT_DISPLAY_FORMAT, false);
syslog(LOG_INFO, "[boot] There were %d uncommitted Hard faults System halted%s\n",
reboots,
(bytesWaiting==0 ? "" : " Due to Key Press\n"));
/* For those of you with a debugger set a break point on up_assert and
* then set dbgContinue = 1 and go.
*/
/* Clear any key press that got us here */
static volatile bool dbgContinue = false;
for (int c ='>'; !dbgContinue; c= getchar()) {
switch(c) {
case EOF:
case '\n':
case '\r':
case ' ':
continue;
default:
putchar(c);
putchar('\n');
switch(c) {
case 'D':
case 'd':
hardfault_write("boot", fileno(stdout), HARDFAULT_DISPLAY_FORMAT, false);
break;
case 'C':
case 'c':
hardfault_rearm("boot");
hardfault_increment_reboot("boot",true);
break;
case 'B':
case 'b':
dbgContinue = true;
break;
default:
break;
} // Inner Switch
syslog(LOG_INFO, "\nEnter B - Continue booting\n" \
"Enter C - Clear the fault log\n" \
"Enter D - Dump fault log\n\n?>");
fflush(stdout);
break;
} // outer switch
} // for
} // inner if
} // outer if
#endif // CONFIG_STM32_SAVE_CRASHDUMP
#endif // CONFIG_STM32_BBSRAM
/* initial LED state */
drv_led_start();
led_off(LED_AMBER);
/* Configure SPI-based devices */
spi1 = up_spiinitialize(1);
if (!spi1) {
syslog(LOG_ERR, "[boot] FAILED to initialize SPI port 1\n");
board_led_on(LED_AMBER);
return -ENODEV;
}
/* Default SPI1 to 1MHz and de-assert the known chip selects. */
SPI_SETFREQUENCY(spi1, 10000000);
SPI_SETBITS(spi1, 8);
SPI_SETMODE(spi1, SPIDEV_MODE3);
SPI_SELECT(spi1, PX4_SPIDEV_GYRO, false);
SPI_SELECT(spi1, PX4_SPIDEV_ACCEL_MAG, false);
SPI_SELECT(spi1, PX4_SPIDEV_BARO, false);
SPI_SELECT(spi1, PX4_SPIDEV_MPU, false);
up_udelay(20);
syslog(LOG_INFO, "[boot] Initialized SPI port 1 (SENSORS)\n");
/* Get the SPI port for the FRAM */
spi2 = up_spiinitialize(2);
if (!spi2) {
syslog(LOG_ERR, "[boot] FAILED to initialize SPI port 2\n");
board_led_on(LED_AMBER);
return -ENODEV;
}
/* Default SPI2 to 37.5 MHz (40 MHz rounded to nearest valid divider, F4 max)
* and de-assert the known chip selects. */
// XXX start with 10.4 MHz in FRAM usage and go up to 37.5 once validated
SPI_SETFREQUENCY(spi2, 12 * 1000 * 1000);
SPI_SETBITS(spi2, 8);
SPI_SETMODE(spi2, SPIDEV_MODE3);
SPI_SELECT(spi2, SPIDEV_FLASH, false);
syslog(LOG_INFO, "[boot] Initialized SPI port 2 (RAMTRON FRAM)\n");
spi4 = up_spiinitialize(4);
/* Default SPI4 to 1MHz and de-assert the known chip selects. */
SPI_SETFREQUENCY(spi4, 10000000);
SPI_SETBITS(spi4, 8);
SPI_SETMODE(spi4, SPIDEV_MODE3);
SPI_SELECT(spi4, PX4_SPIDEV_EXT0, false);
SPI_SELECT(spi4, PX4_SPIDEV_EXT1, false);
syslog(LOG_INFO, "[boot] Initialized SPI port 4\n");
#ifdef CONFIG_MMCSD
/* First, get an instance of the SDIO interface */
sdio = sdio_initialize(CONFIG_NSH_MMCSDSLOTNO);
if (!sdio) {
syslog(LOG_ERR, "[boot] Failed to initialize SDIO slot %d\n",
CONFIG_NSH_MMCSDSLOTNO);
return -ENODEV;
}
/* Now bind the SDIO interface to the MMC/SD driver */
int ret = mmcsd_slotinitialize(CONFIG_NSH_MMCSDMINOR, sdio);
if (ret != OK) {
syslog(LOG_ERR, "[boot] Failed to bind SDIO to the MMC/SD driver: %d\n", ret);
return ret;
}
/* Then let's guess and say that there is a card in the slot. There is no card detect GPIO. */
sdio_mediachange(sdio, true);
syslog(LOG_INFO, "[boot] Initialized SDIO\n");
#endif
return OK;
}
__EXPORT void board_crashdump(uint32_t currentsp, void *tcb, uint8_t *filename, int lineno)
{
/* We need a chunk of ram to save the complete contest in.
* Since we are going to reboot we will use &_sdata
*
*/
fullcontext_s *pdump = (fullcontext_s*)&_sdata;
(void)irqsave();
struct tcb_s *rtcb = (struct tcb_s *)tcb;
/* Zero out everything */
memset(pdump,0,sizeof(fullcontext_s));
/* Save Info */
pdump->info.lineno = lineno;
if (filename) {
int offset = 0;
unsigned int len = strlen((char*)filename) + 1;
if (len > sizeof(pdump->info.filename)) {
offset = len - sizeof(pdump->info.filename) ;
}
strncpy(pdump->info.filename, (char*)&filename[offset], sizeof(pdump->info.filename));
}
/* Save the value of the pointer for current_regs as debugging info.
* It should be NULL in case of an ASSERT and will aid in cross
* checking the validity of system memory at the time of the
* fault.
*/
pdump->info.current_regs = (uintptr_t) current_regs;
/* Save Context */
/* If not NULL then we are in an interrupt context and the user context
* is in current_regs else we are running in the users context
*/
#if CONFIG_TASK_NAME_SIZE > 0
strncpy(pdump->context.proc.name, rtcb->name, CONFIG_TASK_NAME_SIZE);
#endif
pdump->context.proc.pid = rtcb->pid;
pdump->context.stack.current_sp = currentsp;
if (current_regs)
{
pdump->info.stuff |= eRegs;
memcpy(&pdump->context.proc.xcp.regs, (void*)current_regs, sizeof(pdump->context.proc.xcp.regs));
currentsp = pdump->context.proc.xcp.regs[REG_R13];
}
pdump->context.stack.itopofstack = (uint32_t) &g_intstackbase;;
pdump->context.stack.istacksize = (CONFIG_ARCH_INTERRUPTSTACK & ~3);
if (pdump->context.proc.pid == 0) {
pdump->context.stack.utopofstack = g_idle_topstack - 4;
pdump->context.stack.ustacksize = CONFIG_IDLETHREAD_STACKSIZE;
} else {
pdump->context.stack.utopofstack = (uint32_t) rtcb->adj_stack_ptr;
pdump->context.stack.ustacksize = (uint32_t) rtcb->adj_stack_size;;
}
#if CONFIG_ARCH_INTERRUPTSTACK > 3
/* Get the limits on the interrupt stack memory */
pdump->context.stack.itopofstack = (uint32_t)&g_intstackbase;
pdump->context.stack.istacksize = (CONFIG_ARCH_INTERRUPTSTACK & ~3);
/* If the current stack pointer is within the interrupt stack then
* save the interrupt stack data centered about the interrupt stack pointer
*/
if (pdump->context.stack.current_sp <= pdump->context.stack.itopofstack &&
pdump->context.stack.current_sp > pdump->context.stack.itopofstack - pdump->context.stack.istacksize)
{
pdump->info.stuff |= eIntStack;
memcpy(&pdump->istack, (void *)(pdump->context.stack.current_sp-sizeof(pdump->istack)/2),
sizeof(pdump->istack));
}
#endif
/* If the saved context of the interrupted process's stack pointer lies within the
* allocated user stack memory then save the user stack centered about the user sp
*/
if (currentsp <= pdump->context.stack.utopofstack &&
currentsp > pdump->context.stack.utopofstack - pdump->context.stack.ustacksize)
{
pdump->info.stuff |= eUserStack;
memcpy(&pdump->ustack, (void *)(currentsp-sizeof(pdump->ustack)/2), sizeof(pdump->ustack));
}
/* Oh boy we have a real hot mess on our hands so save above and below the
* current sp
*/
if ((pdump->info.stuff & eStackValid) == 0)
{
pdump->info.stuff |= eStackUnknown;
#if CONFIG_ARCH_INTERRUPTSTACK > 3
/* sp and above in istack */
memcpy(&pdump->istack, (void *)pdump->context.stack.current_sp, sizeof(pdump->istack));
/* below in ustack */
memcpy(&pdump->ustack, (void *)(pdump->context.stack.current_sp-sizeof(pdump->ustack)),
sizeof(pdump->ustack));
#else
/* save above and below in ustack */
memcpy(&pdump->ustack, (void *)(pdump->context.stack.current_sp-sizeof(pdump->ustack)/2),
sizeof(pdump->ustack)/2);
#endif
}
stm32_bbsram_savepanic(HARDFAULT_FILENO, (uint8_t*)pdump, sizeof(fullcontext_s));
#if defined(CONFIG_BOARD_RESET_ON_CRASH)
systemreset(false);
#endif
}
