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Revert "Merge pull request #120 from Jeff-Ciesielski/stm32_cl" 

This reverts commit 029bc0ee27, reversing
changes made to a7b3e99644.

This uses LGPL libopencm3. While the patch doesn't include the code,
the resulting binary would force the release of all code as LGPL.
This commit is contained in:
Mariano Alvira 2013-03-02 08:11:28 -05:00
parent b3de9a05e7
commit ab8fe95864
19 changed files with 0 additions and 933 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

169
cpu/arm/stm32f1x_cl/Makefile.stm32f1x_cl
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@ -1,169 +0,0 @@
# Adapted from Makefile.stm32f103
# Default to STM32F107VCT7
ifndef SUBTARGET
$(warning SUBTARGET not defined, defaulting to STM32F107VCT)
SUBTARGET = 7VCT
endif
### libopencm3 specifics
OPENCM3_BASE=
OPENCM3_FAMILY=STM32F1
OPENCM3_LIB=opencm3_stm32f1
ifndef OPENCM3_BASE
$(error OPENCM3_BASE not defined. Please set definition to root of libopencm3)
endif
### Code common for all ARM CPUs
CONTIKI_CPU_ARM=$(CONTIKI)/cpu/arm
CONTIKI_CPU_ARM_COMMON=$(CONTIKI_CPU_ARM)/common
### Define the CPU directory
CONTIKI_CPU=$(CONTIKI_CPU_ARM)/stm32f1x_cl
### Define the source files we have in the STM32F1x_cl port
CONTIKI_CPU_DIRS = .
STM32F1x = clock.c util.c uip-log.c symbols.c
#Using the opencm3 usb library for now
#include $(CONTIKI_CPU_ARM_COMMON)/usb/Makefile.usb
#No SD support for now...This is a TODO
#include $(CONTIKI_CPU_ARM_COMMON)/SD-card/Makefile.sdcard
TARGETLIBS = random.c
CONTIKI_TARGET_SOURCEFILES += $(STM32F1x) $(TARGETLIBS)
CONTIKI_SOURCEFILES += $(CONTIKI_TARGET_SOURCEFILES)
PREFIX = arm-none-eabi
### Compiler definitions
CC = $(PREFIX)-gcc
LD = $(PREFIX)-ld
AS = $(PREFIX)-as
AR = $(PREFIX)-ar
NM = $(PREFIX)-nm
OBJCOPY = $(PREFIX)-objcopy
STRIP = $(PREFIX)-strip
XSLTPROC=xsltproc
PROJECT_OBJECTFILES += ${addprefix $(OBJECTDIR)/,$(CONTIKI_TARGET_MAIN:.c=.o)}
LINKERSCRIPT = $(CONTIKI_CPU)/STM32F10$(SUBTARGET).ld
# DFU-UTIL program upload
DFU_UTIL=dfu-util
DFU_UTIL_OFFSET=0x08000000
# Use dfu-util by default
PROG=dfuutil
ARCH_FLAGS= -mcpu=cortex-m3 -mthumb
#CONTIKI_CFLAGS = -DWITH_UIP -DWITH_ASCII
CFLAGSNO = -I. -I$(CONTIKI)/core -I$(CONTIKI_CPU) \
-I$(OPENCM3_BASE)/include \
-I$(CONTIKI)/platform/$(TARGET) \
${addprefix -I,$(APPDIRS)} \
-DMCK=$(MCK) -DSUBTARGET=$(SUBTARGET) \
-Wall $(ARCH_FLAGS) -g -DSTM32F1 -MD
CFLAGS += $(CONTIKI_CFLAGS) $(CFLAGSNO) -Os
LDFLAGS += -L $(CONTIKI_CPU) -T $(LINKERSCRIPT) \
-Wl,--start-group -lc -lgcc -Wl,--end-group\
-nostartfiles -Wl,--gc-sections $(ARCH_FLAGS)
EXTERN_LIBS += -L $(OPENCM3_BASE)/lib -l$(OPENCM3_LIB)
CDEPFLAGS = $(CFLAGS) -D __MAKING_DEPS__
### Setup directory search path for source files
CUSTOM_RULE_C_TO_OBJECTDIR_O=yes
CUSTOM_RULE_C_TO_O=yes
%.o: %.c
$(CC) $(CFLAGS) $< -c
$(OBJECTDIR)/%.o: %.c
$(CC) $(CFLAGS) -c $< -o $@
CUSTOM_RULE_S_TO_OBJECTDIR_O = yes
%.o: %.S
$(CC) $(CFLAGS) $< -c
$(OBJECTDIR)/%.o: %.S
$(CC) $(CFLAGS) $< -c -o $@
CUSTOM_RULE_C_TO_CO=yes
%.co: %.c
$(CC) $(CFLAGS) $< -c -o $@
CUSTOM_RULE_C_TO_CE=yes
%.ce: %.o
$(LD) $(LDFLAGS) --relocatable -T $(CONTIKI_CPU)/merge-rodata.ld $< -o $@
$(STRIP) -K _init -K _fini --strip-unneeded -g -x $@
CUSTOM_RULE_LINK=yes
%-stripped.o: %.c
$(CC) $(CFLAGS) -c $< -o $@
$(STRIP) --strip-unneeded -g -x $@
%-stripped.o: %.o
$(STRIP) --strip-unneeded -g -x -o $@ $<
%.o: ${CONTIKI_TARGET}/loader/%.S
$(AS) -o $(notdir $(<:.S=.o)) $<
%-nosyms.$(TARGET): %.co $(PROJECT_OBJECTFILES) contiki-$(TARGET).a # $(OBJECTDIR)/empty-symbols.o
$(CC) $(LDFLAGS) $(CFLAGS) -nostartfiles -o $@ $(filter-out %.a,$^) $(filter %.a,$^) -lc $(filter %.a,$^) $(EXTERN_LIBS)
%.ihex: %.$(TARGET)
$(OBJCOPY) $^ -O ihex $@
%.bin: %.$(TARGET)
$(OBJCOPY) -O binary $< $@
.PHONY: symbols.c
ifdef CORE
%.$(TARGET): %.co $(PROJECT_OBJECTFILES) contiki-$(TARGET).a $(STARTUP) $(OBJECTDIR)/symbols.o
$(CC) $(LDFLAGS) $(CFLAGS) -nostartfiles -o $@ $(filter-out %.a,$^) $(filter %.a,$^) -lc $(filter %.a,$^)
symbols.c: $(CORE)
$(NM) $< | awk -f $(CONTIKI_CPU)/builtins.awk -f ../../tools/mknmlist > symbols.c
else
%.$(TARGET): %-nosyms.$(TARGET)
ln -sf $< $@
endif
empty-symbols.c:
cp ${CONTIKI}/tools/empty-symbols.c symbols.c
cp ${CONTIKI}/tools/empty-symbols.h symbols.h
# Don't use core/loader/elfloader.c, use elfloader-otf.c instead
$(OBJECTDIR)/elfloader.o:
echo -n >$@
clean: clean_cpu
.PHONY: stm32test_clean
clean_cpu:
-rm -rf $(BUILTSRCDIR)
.PRECIOUS: %-nosyms.$(TARGET)

54
cpu/arm/stm32f1x_cl/STM32F107VCT.ld
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@ -1,54 +0,0 @@
MEMORY
{
CODE (rx) : ORIGIN = 0x08000000, LENGTH = 256K
DATA (xrw) : ORIGIN = 0x20000000, LENGTH = 64K
}
/* Section Definitions */
EXTERN (vector_table)
ENTRY(reset_handler)
SECTIONS
{
/* Make sure the vector table is at address 0 */
.text : {
*(.vectors)
*(.text*)
. = ALIGN(4);
*(.rodata*)
. = ALIGN(4);
} >CODE
. = ALIGN(4);
_etext = . ;
PROVIDE (etext = .);
.data :
{
_data = . ;
*(.data*)
. = ALIGN(4);
_edata = . ;
PROVIDE (_edata = .);
} >DATA AT >CODE
_data_loadaddr = LOADADDR(.data);
/* .bss section which is used for uninitialized data */
.bss :
{
__bss_start = . ;
__bss_start__ = . ;
*(.bss*)
*(COMMON)
. = ALIGN(4);
_ebss = . ;
} >DATA
. = ALIGN(4);
_end = .;
PROVIDE (_end = .);
}
PROVIDE(_stack = ORIGIN(DATA) + LENGTH(DATA));

78
cpu/arm/stm32f1x_cl/clock.c
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@ -1,78 +0,0 @@
#include <sys/clock.h>
#include <sys/cc.h>
#include <sys/etimer.h>
#include <debug-uart.h>
#include <libopencm3/cm3/systick.h>
static volatile clock_time_t current_clock = 0;
static volatile unsigned long current_seconds = 0;
static unsigned int second_countdown = CLOCK_SECOND;
void sys_tick_handler(void) __attribute__ ((interrupt));
void
sys_tick_handler(void)
{
current_clock++;
if(etimer_pending() && etimer_next_expiration_time() <= current_clock) {
etimer_request_poll();
/* printf("%d,%d\n", clock_time(),etimer_next_expiration_time ()); */
}
if(--second_countdown == 0) {
current_seconds++;
second_countdown = CLOCK_SECOND;
}
}
void
clock_init()
{
systick_set_clocksource(STK_CTRL_CLKSOURCE_AHB_DIV8);
/*72mhz / 8 / 1000 */
systick_set_reload(MCK / 8 / CLOCK_SECOND);
systick_interrupt_enable();
systick_counter_enable();
}
clock_time_t
clock_time(void)
{
return current_clock;
}
unsigned long
clock_seconds(void)
{
return current_seconds;
}
/* TODO: This code needs to be evaluated for the stm32f107 and
* implemented
*/
#if 0
/* The inner loop takes 4 cycles. The outer 5+SPIN_COUNT*4. */
#define SPIN_TIME 2 /* us */
#define SPIN_COUNT (((MCK*SPIN_TIME/1000000)-5)/4)
#ifndef __MAKING_DEPS__
void
clock_delay(unsigned int t)
{
#ifdef __THUMBEL__
asm
volatile
("1: mov r1,%2\n2:\tsub r1,#1\n\tbne 2b\n\tsub %0,#1\n\tbne 1b\n":"=l"
(t):"0"(t), "l"(SPIN_COUNT));
#else
#error Must be compiled in thumb mode
#endif
}
#endif
#endif /* __MAKING_DEPS__ */

13
cpu/arm/stm32f1x_cl/mtarch.h
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@ -1,13 +0,0 @@
/*
* Implementation of multithreading in ARM Cortex-M3. To be done.
*/
#ifndef __MTARCH_H__
#define __MTARCH_H__
struct mtarch_thread {
short mt_thread;
};
#endif /* __MTARCH_H__ */

16
cpu/arm/stm32f1x_cl/rtimer-arch.c
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@ -1,16 +0,0 @@
void
rtimer_arch_init(void)
{
}
void
rtimer_arch_set(rtimer_clock_t t)
{
}
rtimer_clock_t
rtimer_arch_now(void)
{
return 0;
}

22
cpu/arm/stm32f1x_cl/rtimer-arch.h
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@ -1,22 +0,0 @@
/**
* \file
* Header file for the STM32F107-specific rtimer code
* \author
* Jeff Ciesielski <jeffciesielski@gmail.com>
* Adapted from stm32f103 example
*/
#ifndef __RTIMER_ARCH_H__
#define __RTIMER_ARCH_H__
#include "sys/rtimer.h"
#define RTIMER_ARCH_SECOND (MCK/1024)
void rtimer_arch_init(void);
void rtimer_arch_set(rtimer_clock_t t);
rtimer_clock_t rtimer_arch_now(void);
#endif /* __RTIMER_ARCH_H__ */

7
cpu/arm/stm32f1x_cl/uip-log.c
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@ -1,7 +0,0 @@
#include <stdio.h>
void
uip_log(char *msg)
{
printf("uip: %s\n", msg);
}

12
cpu/arm/stm32f1x_cl/util.c
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@ -1,12 +0,0 @@
#include <stdint.h>
uint32_t retval;
uint32_t
get_msp(void)
{
asm("ldr r1, =retval");
asm("mrs r0, msp");
asm("str r0, [r1]");
return retval;
}

5
cpu/arm/stm32f1x_cl/util.h
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@ -1,5 +0,0 @@
#ifndef _UTIL_H_
#define _UTIL_H_
#include <stdint.h>
uint32_t get_msp(void);
#endif /*_UTIL_H_*/

26
platform/stm32f107_basic/Makefile
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@ -1,26 +0,0 @@
TARGET=stm32f107_basic
all: stm32f107_basic
CONTIKI=../..
CONTIKI_TARGET_MAIN=contiki-main.c
PROJECT_SOURCEFILES = parity.c
randgen: randgen.c
gcc -DNDEBUG -I $(CONTIKI)/cpu/arm/stm32f107/ -I . -I $(CONTIKI)/core randgen.c -o randgen
randcheck: randcheck.c
gcc -DNDEBUG -I $(CONTIKI)/cpu/arm/stm32f107/ -I . -I $(CONTIKI)/core randcheck.c -o randcheck
clean: stm32test_clean
.PHONY: stm32test_clean
stm32test_clean:
include $(CONTIKI)/Makefile.include

20
platform/stm32f107_basic/Makefile.stm32f107_basic
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@ -1,20 +0,0 @@
CONTIKI_TARGET_DIRS = . dev
# Master clock frequency
MCK=72000000
CFLAGS+=-DAUTOSTART_ENABLE
ifndef CONTIKI_TARGET_MAIN
CONTIKI_TARGET_MAIN = contiki-main.c
endif
CONTIKI_TARGET_SOURCEFILES += $(CONTIKI_TARGET_MAIN)
CONTIKI_TARGET_SOURCEFILES += debug-uart.c newlib.c gqueue.c
include $(CONTIKI)/cpu/arm/stm32f1x_cl/Makefile.stm32f1x_cl
contiki-$(TARGET).a: ${addprefix $(OBJECTDIR)/,symbols.o}
ifndef BASE_IP
BASE_IP := 172.16.1.1
endif

46
platform/stm32f107_basic/contiki-conf.h
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@ -1,46 +0,0 @@
#ifndef __CONTIKI_CONF_H__CDBB4VIH3I__
#define __CONTIKI_CONF_H__CDBB4VIH3I__
#include <stdint.h>
#define CCIF
#define CLIF
#define WITH_UIP 1
#define WITH_ASCII 1
#define CLOCK_CONF_SECOND 1000
/* These names are deprecated, use C99 names. */
typedef uint8_t u8_t;
typedef uint16_t u16_t;
typedef uint32_t u32_t;
typedef int8_t s8_t;
typedef int16_t s16_t;
typedef int32_t s32_t;
typedef unsigned int clock_time_t;
typedef unsigned int uip_stats_t;
#ifndef BV
#define BV(x) (1<<(x))
#endif
/* uIP configuration */
#define UIP_CONF_LLH_LEN 0
#define UIP_CONF_BROADCAST 1
#define UIP_CONF_LOGGING 1
#define UIP_CONF_BUFFER_SIZE 116
#define UIP_CONF_TCP_FORWARD 1
/* Prefix for relocation sections in ELF files */
#define REL_SECT_PREFIX ".rel"
#define CC_BYTE_ALIGNED __attribute__ ((packed, aligned(1)))
#define USB_EP1_SIZE 64
#define USB_EP2_SIZE 64
#define RAND_MAX 0x7fff
#endif /* __CONTIKI_CONF_H__CDBB4VIH3I__ */

44
platform/stm32f107_basic/contiki-main.c
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@ -1,44 +0,0 @@
#include <stdint.h>
#include <stdio.h>
#include <debug-uart.h>
#include <sys/process.h>
#include <sys/procinit.h>
#include <etimer.h>
#include <sys/autostart.h>
#include <clock.h>
#include <libopencm3/stm32/f1/rcc.h>
unsigned int idle_count = 0;
static void
configure_mcu_clocks(void)
{
rcc_clock_setup_in_hse_25mhz_out_72mhz();
/* GPIO Clocks */
rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_IOPAEN);
rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_AFIOEN);
/* USART 1 */
rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_USART1EN);
}
int
main()
{
configure_mcu_clocks();
uart_init(115200);
printf("Initialising\n");
clock_init();
process_init();
process_start(&etimer_process, NULL);
autostart_start(autostart_processes);
printf("Processes running\n");
while(1) {
do {
} while(process_run() > 0);
idle_count++;
}
return 0;
}

95
platform/stm32f107_basic/dev/debug-uart.c
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@ -1,95 +0,0 @@
#include <libopencm3/stm32/usart.h>
#include <libopencm3/cm3/nvic.h>
#include <libopencm3/stm32/f1/gpio.h>
#include <gqueue.h>
#include <stdio.h>
#include <stdbool.h>
#include <errno.h>
DECLARE_QUEUE(char, uart_tx_buf, 256);
DECLARE_QUEUE(char, uart_rx_buf, 256);
static void uart_init_gpio(void)
{
gpio_set_mode(GPIOA,
GPIO_MODE_OUTPUT_50_MHZ,
GPIO_CNF_OUTPUT_ALTFN_PUSHPULL,
GPIO9);
gpio_set_mode(GPIOA,
GPIO_MODE_INPUT,
GPIO_CNF_INPUT_FLOAT,
GPIO10);
/* USART lines should idle high */
gpio_set(GPIOA, GPIO9);
gpio_set(GPIOA, GPIO10);
}
void uart_init(int baud)
{
uart_init_gpio();
nvic_enable_irq(NVIC_USART1_IRQ);
nvic_set_priority(NVIC_USART1_IRQ, 2);
usart_set_baudrate(USART1, baud);
usart_set_databits(USART1, 8);
usart_set_parity(USART1, USART_PARITY_NONE);
usart_set_flow_control(USART1, USART_FLOWCONTROL_NONE);
usart_set_stopbits(USART1, USART_CR2_STOPBITS_1);
usart_set_mode(USART1, USART_MODE_TX_RX);
usart_enable_rx_interrupt(USART1);
usart_enable(USART1);
/* This ensures stdio doesn't use its own buffers */
setvbuf(stdin, NULL, _IONBF, 0);
setvbuf(stdout, NULL, _IONBF, 0);
}
int uart_putchar(char c)
{
if( c == '\n')
uart_putchar('\r');
if(!queue_is_full(&uart_tx_buf)) {
queue_enqueue(&uart_tx_buf, &c);
} else {
return -ENOMEM;
}
usart_enable_tx_interrupt(USART1);
return 0;
}
int uart_getchar(char *c)
{
if(!queue_is_empty(&uart_rx_buf)) {
queue_dequeue(&uart_rx_buf, c);
return 0;
} else {
return -ENODATA;
}
}
void usart1_isr(void)
{
char c;
if (usart_get_flag(USART1, USART_SR_TXE)) {
if (!queue_is_empty(&uart_tx_buf)) {
queue_dequeue(&uart_tx_buf, &c);
usart_send(USART1, (uint16_t)c);
} else {
usart_disable_tx_interrupt(USART1);
}
}
if (usart_get_flag(USART1, USART_SR_RXNE)) {
if (!queue_is_full(&uart_rx_buf)) {
c = usart_recv(USART1);
queue_enqueue(&uart_rx_buf, &c);
}
}
}

14
platform/stm32f107_basic/dev/debug-uart.h
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@ -1,14 +0,0 @@
/**
* USART driver for STM32F1xx w/ libopencm3 peripherl lib
* (c) 2012 Blessed Contraptions
* Jeff Ciesielski <jeff.ciesielski@gmail.com>
*/
#ifndef _UART_H_
#define _UART_H_
int uart_putchar(char c);
int uart_getchar(char *c);
void uart_init(int baud);
#endif

38
platform/stm32f107_basic/gqueue.c
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@ -1,38 +0,0 @@
#include <gqueue.h>
void
queue_enqueue(volatile void *q, const void *elt)
{
volatile struct generic_queue *gq = q;
if(gq->len == 0) {
gq->head = gq->memory;
gq->tail = gq->memory;
} else {
if(gq->tail == gq->memory + (gq->max_capacity - 1) * gq->item_size)
/* FIXME: Should something be done about
* queue length? Substact one, maybe?*/
gq->tail = gq->memory;
else
gq->tail = (uint8_t *) gq->tail + gq->item_size;
}
memcpy((void *)gq->tail, elt, gq->item_size);
gq->len++;
}
void
queue_dequeue(volatile void *q, void *elt)
{
volatile struct generic_queue *gq = q;
memcpy(elt, (void *)gq->head, gq->item_size);
if(gq->head == gq->memory + (gq->max_capacity - 1) * gq->item_size)
/* FIXME: Should something be done about
* queue length? Substact one, maybe?*/
gq->head = gq->memory;
else if(gq->len > 1)
gq->head = (uint8_t *) gq->head + gq->item_size;
gq->len--;
}

73
platform/stm32f107_basic/gqueue.h
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@ -1,73 +0,0 @@
/************************************************************************************/
/* The MIT License (MIT) */
/* */
/* Copyright (c) 2012 Jeff Ciesielski <jeffciesielski@gmail.com> */
/* Andrey Smirnov <andrew.smirnov@gmail.com> */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining a copy of */
/* this software and associated documentation files (the "Software"), to deal in */
/* the Software without restriction, including without limitation the rights to */
/* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies */
/* of the Software, and to permit persons to whom the Software is furnished to do */
/* so, subject to the following conditions: */
/* */
/* -The above copyright notice and this permission notice shall be included in all */
/* copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR */
/* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS */
/* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR */
/* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER */
/* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN */
/* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/************************************************************************************/
#ifndef _QUEUE_H_
#define _QUEUE_H_
#include <string.h>
#include <stdint.h>
#include <stdbool.h>
struct generic_queue {
volatile void *head;
volatile void *tail;
size_t item_size;
size_t len;
size_t max_capacity;
volatile uint8_t memory[0];
};
#define DECLARE_QUEUE(element_type, name, max_size) \
struct name { \
struct generic_queue gq; \
element_type __elements[max_size]; \
} name = { \
.gq={ \
.len = 0, \
.item_size = sizeof(element_type), \
.max_capacity = max_size, \
}, \
}
static inline bool queue_is_empty(volatile void *q)
{
volatile struct generic_queue *gq = q;
return (gq->len == 0);
}
static inline int queue_get_len(volatile void *q)
{
volatile struct generic_queue *gq = q;
return gq->len;
}
static inline bool queue_is_full(volatile void *q)
{
volatile struct generic_queue *gq = q;
return (gq->len >= gq->max_capacity);
}
void queue_enqueue(volatile void *q, const void *elt) __attribute__((nonnull));
void queue_dequeue(volatile void *q, void *elt) __attribute__((nonnull));
#endif

199
platform/stm32f107_basic/newlib.c
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@ -1,199 +0,0 @@
#include <errno.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <sys/times.h>
#include <sys/unistd.h>
#include <sys/time.h>
#include <debug-uart.h>
#include <stdint.h>
#include <libopencm3/stm32/f1/rtc.h>
#include <util.h>
#define STDOUT_USART USART1
#define STDERR_USART USART1
#define STDIN_USART USART1
#undef errno
extern int errno;
char *__env[1] = { 0 };
char **environ = __env;
int _write(int file, char *ptr, int len);
void
_exit(int status)
{
while(1);
}
int
_close(int file)
{
return -1;
}
int
_execve(char *name, char **argv, char **env)
{
errno = ENOMEM;
return -1;
}
int
_fork()
{
errno = EAGAIN;
return -1;
}
int
_fstat(int file, struct stat *st)
{
st->st_mode = S_IFCHR;
return 0;
}
int
_getpid()
{
return 1;
}
int
_gettimeofday(struct timeval *tv, struct timezone *tz)
{
tv->tv_sec = rtc_get_counter_val();
tv->tv_usec = 0;
return 0;
}
int
_isatty(int file)
{
switch (file) {
case STDOUT_FILENO:
case STDERR_FILENO:
case STDIN_FILENO:
return 1;
default:
//errno = ENOTTY;
errno = EBADF;
return 0;
}
}
int
_kill(int pid, int sig)
{
errno = EINVAL;
return (-1);
}
int
_link(char *old, char *new)
{
errno = EMLINK;
return -1;
}
int
_lseek(int file, int ptr, int dir)
{
return 0;
}
caddr_t
_sbrk(int incr)
{
extern char _ebss;
static char *heap_end;
char *prev_heap_end;
if(heap_end == 0) {
heap_end = &_ebss;
}
prev_heap_end = heap_end;
char *stack = (char *)get_msp();
if(heap_end + incr > stack) {
_write(STDERR_FILENO, "Heap and stack collision", 25);
errno = ENOMEM;
return (caddr_t) - 1;
//abort ();
}
heap_end += incr;
return (caddr_t) prev_heap_end;
}
int
_read(int file, char *ptr, int len)
{
char c = 0x00;
switch (file) {
case STDIN_FILENO:
uart_getchar(&c);
*ptr++ = c;
return 1;
break;
default:
errno = EBADF;
return -1;
}
}
int
_stat(const char *filepath, struct stat *st)
{
st->st_mode = S_IFCHR;
return 0;
}
clock_t
_times(struct tms * buf)
{
return -1;
}
int
_unlink(char *name)
{
errno = ENOENT;
return -1;
}
int
_wait(int *status)
{
errno = ECHILD;
return -1;
}
int
_write(int file, char *ptr, int len)
{
int n;
char c;
switch (file) {
case STDOUT_FILENO: /*stdout */
for(n = 0; n < len; n++) {
c = (uint8_t) * ptr++;
uart_putchar(c);
}
break;
case STDERR_FILENO: /* stderr */
for(n = 0; n < len; n++) {
c = (uint8_t) * ptr++;
uart_putchar(c);
}
break;
default:
errno = EBADF;
return -1;
}
return len;
}

2
platform/stm32f107_basic/structgen_opts.gen.h
View File

@ -1,2 +0,0 @@
#pragma target_endian little
#pragma max_target_int_bytes 8