void up_initialize(void)
{
/* The real purpose of the following is to make sure that syslog
* is drawn into the link. It is needed by up_tapdev which is linked
* separately.
*/
#ifdef CONFIG_NET
syslog(LOG_INFO, "SIM: Initializing");
#endif
#if CONFIG_NFILE_DESCRIPTORS > 0
/* Register devices */
#if defined(CONFIG_DEV_NULL)
devnull_register(); /* Standard /dev/null */
#endif
#if defined(CONFIG_DEV_ZERO)
devzero_register(); /* Standard /dev/zero */
#endif
#endif /* CONFIG_NFILE_DESCRIPTORS */
#if defined(USE_DEVCONSOLE)
/* Start the sumulated UART device */
simuart_start();
/* Register a console (or not) */
up_devconsole(); /* Our private /dev/console */
#elif defined(CONFIG_SYSLOG_CONSOLE)
syslog_console_init();
#elif defined(CONFIG_RAMLOG_CONSOLE)
ramlog_consoleinit();
#endif
#ifdef CONFIG_SYSLOG_CHAR
syslog_initialize();
#endif
#ifdef CONFIG_RAMLOG_SYSLOG
ramlog_sysloginit(); /* System logging device */
#endif
#if defined(CONFIG_FS_FAT) && !defined(CONFIG_DISABLE_MOUNTPOINT)
up_registerblockdevice(); /* Our FAT ramdisk at /dev/ram0 */
#endif
#ifdef CONFIG_NET_ETHERNET
netdriver_init(); /* Our "real" network driver */
#endif
#if defined(CONFIG_FS_SMARTFS) && defined(CONFIG_SIM_SPIFLASH)
up_init_smartfs();
#endif
}
void up_initialize(void)
{
/* The real purpose of the following is to make sure that syslog
* is drawn into the link. It is needed by up_tapdev which is linked
* separately.
*/
#ifdef CONFIG_NET
syslog("SIM: Initializing");
#endif
/* Register devices */
devnull_register(); /* Standard /dev/null */
devzero_register(); /* Standard /dev/zero */
/* Register a console (or not) */
#if defined(USE_DEVCONSOLE)
up_devconsole(); /* Our private /dev/console */
#elif defined(CONFIG_RAMLOG_CONSOLE)
ramlog_consoleinit();
#endif
#ifdef CONFIG_SYSLOG_CHAR
syslog_initialize();
#endif
#ifdef CONFIG_RAMLOG_SYSLOG
ramlog_sysloginit(); /* System logging device */
#endif
#if defined(CONFIG_FS_FAT) && !defined(CONFIG_DISABLE_MOUNTPOINT)
up_registerblockdevice(); /* Our FAT ramdisk at /dev/ram0 */
#endif
#ifdef CONFIG_NET
uipdriver_init(); /* Our "real" network driver */
#endif
}
void up_initialize(void)
{
/* Initialize global variables */
current_regs = NULL;
/* Calibrate the timing loop */
up_calibratedelay();
/* Add any extra memory fragments to the memory manager */
up_addregion();
/* Initialize the interrupt subsystem */
up_irqinitialize();
/* Initialize the DMA subsystem if the weak function stm32_dmainitialize has been
* brought into the build
*/
#ifdef CONFIG_ARCH_DMA
#ifdef CONFIG_HAVE_WEAKFUNCTIONS
if (up_dmainitialize)
#endif
{
up_dmainitialize();
}
#endif
/* Initialize the system timer interrupt */
#if !defined(CONFIG_SUPPRESS_INTERRUPTS) && !defined(CONFIG_SUPPRESS_TIMER_INTS)
up_timer_initialize();
#endif
/* Register devices */
#if CONFIG_NFILE_DESCRIPTORS > 0
#if defined(CONFIG_DEV_NULL)
devnull_register(); /* Standard /dev/null */
#endif
#if defined(CONFIG_DEV_ZERO)
devzero_register(); /* Standard /dev/zero */
#endif
#endif /* CONFIG_NFILE_DESCRIPTORS */
/* Initialize the serial device driver */
#ifdef USE_SERIALDRIVER
up_serialinit();
#endif
/* Initialize the console device driver (if it is other than the standard
* serial driver).
*/
#if defined(CONFIG_DEV_LOWCONSOLE)
lowconsole_init();
#elif defined(CONFIG_SYSLOG_CONSOLE)
syslog_console_init();
#elif defined(CONFIG_RAMLOG_CONSOLE)
ramlog_consoleinit();
#endif
/* Initialize the system logging device */
#ifdef CONFIG_SYSLOG_CHAR
syslog_initialize();
#endif
#ifdef CONFIG_RAMLOG_SYSLOG
ramlog_sysloginit();
#endif
#ifndef CONFIG_NETDEV_LATEINIT
/* Initialize the network */
up_netinitialize();
#endif
#ifdef CONFIG_NETDEV_LOOPBACK
/* Initialize the local loopback device */
(void)localhost_initialize();
#endif
#ifdef CONFIG_NET_TUN
/* Initialize the TUN device */
(void)tun_initialize();
#endif
/* Initialize USB -- device and/or host */
up_usbinitialize();
board_led_on(LED_IRQSENABLED);
}
void up_initialize(void)
{
#ifdef CONFIG_SMP
int i;
/* Initialize global variables */
for (i = 0; i < CONFIG_SMP_NCPUS; i++)
{
g_current_regs[i] = NULL;
}
#else
CURRENT_REGS = NULL;
#endif
/* Add any extra memory fragments to the memory manager */
xtensa_add_region();
/* Initialize the interrupt subsystem */
xtensa_irq_initialize();
#ifdef CONFIG_PM
/* Initialize the power management subsystem. This MCU-specific function
* must be called *very* early in the initialization sequence *before* any
* other device drivers are initialized (since they may attempt to register
* with the power management subsystem).
*/
up_pminitialize();
#endif
#ifdef CONFIG_ARCH_DMA
/* Initialize the DMA subsystem if the weak function xtensa_dma_initialize
* has been brought into the build
*/
#ifdef CONFIG_HAVE_WEAKFUNCTIONS
if (xtensa_dma_initialize)
#endif
{
xtensa_dma_initialize();
}
#endif
#if !defined(CONFIG_SUPPRESS_INTERRUPTS) && !defined(CONFIG_SUPPRESS_TIMER_INTS)
/* Initialize the system timer interrupt */
xtensa_timer_initialize();
#endif
#ifdef CONFIG_MM_IOB
/* Initialize IO buffering */
iob_initialize();
#endif
#if CONFIG_NFILE_DESCRIPTORS > 0
/* Register devices */
#if defined(CONFIG_DEV_NULL)
devnull_register(); /* Standard /dev/null */
#endif
#if defined(CONFIG_DEV_RANDOM)
devrandom_register(); /* Standard /dev/random */
#endif
#if defined(CONFIG_DEV_URANDOM)
devurandom_register(); /* Standard /dev/urandom */
#endif
#if defined(CONFIG_DEV_ZERO)
devzero_register(); /* Standard /dev/zero */
#endif
#if defined(CONFIG_DEV_LOOP)
loop_register(); /* Standard /dev/loop */
#endif
#endif /* CONFIG_NFILE_DESCRIPTORS */
#if defined(CONFIG_SCHED_INSTRUMENTATION_BUFFER) && \
defined(CONFIG_DRIVER_NOTE)
note_register(); /* Non-standard /dev/note */
#endif
/* Initialize the serial device driver */
#ifdef USE_SERIALDRIVER
xtensa_serial_initialize();
#endif
/* Initialize the console device driver (if it is other than the standard
* serial driver).
*/
#if defined(CONFIG_DEV_LOWCONSOLE)
lowconsole_init();
#elif defined(CONFIG_CONSOLE_SYSLOG)
syslog_console_init();
#elif defined(CONFIG_RAMLOG_CONSOLE)
ramlog_consoleinit();
#endif
#if CONFIG_NFILE_DESCRIPTORS > 0 && defined(CONFIG_PSEUDOTERM_SUSV1)
/* Register the master pseudo-terminal multiplexor device */
(void)ptmx_register();
#endif
/* Early initialization of the system logging device. Some SYSLOG channel
* can be initialized early in the initialization sequence because they
* depend on only minimal OS initialization.
*/
syslog_initialize(SYSLOG_INIT_EARLY);
#if defined(CONFIG_CRYPTO)
/* Initialize the HW crypto and /dev/crypto */
up_cryptoinitialize();
#endif
#if CONFIG_NFILE_DESCRIPTORS > 0 && defined(CONFIG_CRYPTO_CRYPTODEV)
devcrypto_register();
#endif
#ifndef CONFIG_NETDEV_LATEINIT
/* Initialize the network */
up_netinitialize();
#endif
#ifdef CONFIG_NETDEV_LOOPBACK
/* Initialize the local loopback device */
(void)localhost_initialize();
#endif
#ifdef CONFIG_NET_TUN
/* Initialize the TUN device */
(void)tun_initialize();
#endif
#ifdef CONFIG_NETDEV_TELNET
/* Initialize the Telnet session factory */
(void)telnet_initialize();
#endif
/* Initialize USB -- device and/or host */
up_usbinitialize();
board_autoled_on(LED_IRQSENABLED);
}
void up_initialize(void)
{
/* Colorize the interrupt stack */
up_color_intstack();
/* Add any extra memory fragments to the memory manager */
up_addregion();
/* Initialize the interrupt subsystem */
up_irqinitialize();
/* Initialize the system timer interrupt */
#if !defined(CONFIG_SUPPRESS_INTERRUPTS) && !defined(CONFIG_SUPPRESS_TIMER_INTS) && \
!defined(CONFIG_SYSTEMTICK_EXTCLK)
riscv_timer_initialize();
#endif
#ifdef CONFIG_MM_IOB
/* Initialize IO buffering */
iob_initialize();
#endif
#if CONFIG_NFILE_DESCRIPTORS > 0
/* Register devices */
#if defined(CONFIG_DEV_NULL)
devnull_register(); /* Standard /dev/null */
#endif
#if defined(CONFIG_DEV_ZERO)
devzero_register(); /* Standard /dev/zero */
#endif
#endif /* CONFIG_NFILE_DESCRIPTORS */
/* Initialize the serial device driver */
#ifdef USE_SERIALDRIVER
up_serialinit();
#endif
/* Initialize the console device driver (if it is other than the standard
* serial driver).
*/
#if defined(CONFIG_DEV_LOWCONSOLE)
lowconsole_init();
#elif defined(CONFIG_SYSLOG_CONSOLE)
syslog_console_init();
#elif defined(CONFIG_RAMLOG_CONSOLE)
ramlog_consoleinit();
#endif
#if CONFIG_NFILE_DESCRIPTORS > 0 && defined(CONFIG_PSEUDOTERM_SUSV1)
/* Register the master pseudo-terminal multiplexor device */
(void)ptmx_register();
#endif
/* Early initialization of the system logging device. Some SYSLOG channel
* can be initialized early in the initialization sequence because they
* depend on only minimal OS initialization.
*/
syslog_initialize(SYSLOG_INIT_EARLY);
#ifdef CONFIG_RAMLOG_SYSLOG
ramlog_sysloginit();
#endif
board_autoled_on(LED_IRQSENABLED);
}
void up_initialize(void)
{
/* Initialize global variables */
current_regs = NULL;
/* Calibrate the timing loop */
up_calibratedelay();
/* Colorize the interrupt stack */
up_color_intstack();
/* Add any extra memory fragments to the memory manager */
up_addregion();
/* Initialize the interrupt subsystem */
up_irqinitialize();
/* Initialize the power management subsystem. This MCU-specific function
* must be called *very* early in the initialization sequence *before* any
* other device drivers are initialized (since they may attempt to register
* with the power management subsystem).
*/
#ifdef CONFIG_PM
up_pminitialize();
#endif
/* Initialize the DMA subsystem if the weak function up_dmainitialize has been
* brought into the build
*/
#ifdef CONFIG_ARCH_DMA
#ifdef CONFIG_HAVE_WEAKFUNCTIONS
if (up_dmainitialize)
#endif
{
up_dmainitialize();
}
#endif
/* Initialize the system timer interrupt */
#if !defined(CONFIG_SUPPRESS_INTERRUPTS) && !defined(CONFIG_SUPPRESS_TIMER_INTS) && \
!defined(CONFIG_SYSTEMTICK_EXTCLK)
up_timer_initialize();
#endif
/* Register devices */
#if CONFIG_NFILE_DESCRIPTORS > 0
#if defined(CONFIG_DEV_NULL)
devnull_register(); /* Standard /dev/null */
#endif
#if defined(CONFIG_CRYPTO)
up_cryptoinitialize();
#endif
#if defined(CONFIG_CRYPTO_CRYPTODEV)
devcrypto_register(); /* /dev/crypto */
#endif
#if defined(CONFIG_DEV_ZERO)
devzero_register(); /* Standard /dev/zero */
#endif
#endif /* CONFIG_NFILE_DESCRIPTORS */
/* Initialize the serial device driver */
#ifdef USE_SERIALDRIVER
up_serialinit();
#endif
/* Initialize the console device driver (if it is other than the standard
* serial driver).
*/
#if defined(CONFIG_DEV_LOWCONSOLE)
lowconsole_init();
#elif defined(CONFIG_RAMLOG_CONSOLE)
ramlog_consoleinit();
#elif defined(CONFIG_ARM_SEMIHOSTING_CONSOLE)
semihosting_consoleinit();
#elif defined(CONFIG_ARM_ITM_CONSOLE)
itm_consoleinit();
#elif defined(CONFIG_APB_USB_LOG)
usb_log_init();
#endif
/* Initialize the Random Number Generator (RNG) */
#ifdef CONFIG_DEV_RANDOM
up_rnginitialize();
#endif
/* Initialize the system logging device */
#ifdef CONFIG_SYSLOG_CHAR
syslog_initialize();
#endif
#ifdef CONFIG_RAMLOG_SYSLOG
ramlog_sysloginit();
#endif
/* Initialize the network */
up_netinitialize();
/* Initialize USB -- device and/or host */
up_usbinitialize();
/* Initialize the L2 cache if present and selected */
up_l2ccinitialize();
board_led_on(LED_IRQSENABLED);
}
void up_initialize(void)
{
/* Initialize global variables */
current_regs = NULL;
/* Calibrate the timing loop */
up_calibratedelay();
/* Initialize the interrupt subsystem */
up_irqinitialize();
/* Initialize the system timer interrupt */
#if !defined(CONFIG_SUPPRESS_INTERRUPTS) && !defined(CONFIG_SUPPRESS_TIMER_INTS)
up_timer_initialize();
#endif
/* Register devices */
#if CONFIG_NFILE_DESCRIPTORS > 0
#if defined(CONFIG_DEV_NULL)
devnull_register(); /* Standard /dev/null */
#endif
#if defined(CONFIG_DEV_ZERO)
devzero_register(); /* Standard /dev/zero */
#endif
#endif /* CONFIG_NFILE_DESCRIPTORS */
/* Initialize the serial device driver */
#ifdef USE_SERIALDRIVER
up_serialinit();
#endif
/* Initialize the console device driver (if it is other than the standard
* serial driver). NOTE that the naming implies that the console is a serial
* driver. That is usually the case, however, if no UARTs are enabled, the
* console could als be provided through some other device, such as an LCD.
* Architecture-specific logic will have to detect that case.
*/
#if defined(CONFIG_DEV_LOWCONSOLE)
lowconsole_init();
#elif defined(CONFIG_SYSLOG_CONSOLE)
syslog_console_init();
#elif defined(CONFIG_RAMLOG_CONSOLE)
ramlog_consoleinit();
#endif
/* Initialize the system logging device */
#ifdef CONFIG_SYSLOG_CHAR
syslog_initialize();
#endif
#ifdef CONFIG_RAMLOG_SYSLOG
ramlog_sysloginit();
#endif
#ifndef CONFIG_NETDEV_LATEINIT
/* Initialize the network */
up_netinitialize();
#endif
#ifdef CONFIG_NETDEV_LOOPBACK
/* Initialize the local loopback device */
(void)localhost_initialize();
#endif
#ifdef CONFIG_NET_TUN
/* Initialize the TUN device */
(void)tun_initialize();
#endif
/* Initialize USB */
up_usbinitialize();
board_led_on(LED_IRQSENABLED);
}
void up_initialize(void)
{
/* Initialize global variables */
g_current_regs = NULL;
/* Calibrate the timing loop */
up_calibratedelay();
/* Initialize the interrupt subsystem */
up_irqinitialize();
#ifdef CONFIG_PM
/* Initialize the power management subsystem. This MCU-specific function
* must be called *very* early in the initialization sequence *before* any
* other device drivers are initialized (since they may attempt to register
* with the power management subsystem).
*/
up_pminitialize();
#endif
#if !defined(CONFIG_SUPPRESS_INTERRUPTS) && !defined(CONFIG_SUPPRESS_TIMER_INTS)
/* Initialize the system timer interrupt */
up_timer_initialize();
#endif
/* Register devices */
#if CONFIG_NFILE_DESCRIPTORS > 0
#if defined(CONFIG_DEV_NULL)
devnull_register(); /* Standard /dev/null */
#endif
#if defined(CONFIG_DEV_RANDOM)
devrandom_register(); /* Standard /dev/random */
#endif
#if defined(CONFIG_DEV_URANDOM)
devurandom_register(); /* Standard /dev/urandom */
#endif
#if defined(CONFIG_DEV_ZERO)
devzero_register(); /* Standard /dev/zero */
#endif
#if defined(CONFIG_DEV_LOOP)
loop_register(); /* Standard /dev/loop */
#endif
#endif /* CONFIG_NFILE_DESCRIPTORS */
#if defined(CONFIG_SCHED_INSTRUMENTATION_BUFFER) && \
defined(CONFIG_DRIVER_NOTE)
note_register(); /* Non-standard /dev/note */
#endif
/* Initialize the serial device driver */
#ifdef USE_SERIALDRIVER
up_serialinit();
#endif
/* Initialize the console device driver (if it is other than the standard
* serial driver). NOTE that the naming implies that the console is a serial
* driver. That is usually the case, however, if no UARTs are enabled, the
* console could als be provided through some other device, such as an LCD.
* Architecture-specific logic will have to detect that case.
*/
#if defined(CONFIG_DEV_LOWCONSOLE)
lowconsole_init();
#elif defined(CONFIG_CONSOLE_SYSLOG)
syslog_console_init();
#elif defined(CONFIG_RAMLOG_CONSOLE)
ramlog_consoleinit();
#endif
#if CONFIG_NFILE_DESCRIPTORS > 0 && defined(CONFIG_PSEUDOTERM_SUSV1)
/* Register the master pseudo-terminal multiplexor device */
(void)ptmx_register();
#endif
/* Early initialization of the system logging device. Some SYSLOG channel
* can be initialized early in the initialization sequence because they
* depend on only minimal OS initialization.
*/
syslog_initialize(SYSLOG_INIT_EARLY);
#if defined(CONFIG_CRYPTO)
/* Initialize the HW crypto and /dev/crypto */
up_cryptoinitialize();
#endif
#if CONFIG_NFILE_DESCRIPTORS > 0 && defined(CONFIG_CRYPTO_CRYPTODEV)
devcrypto_register();
#endif
#ifndef CONFIG_NETDEV_LATEINIT
/* Initialize the network */
up_netinitialize();
#endif
#ifdef CONFIG_NETDEV_LOOPBACK
/* Initialize the local loopback device */
(void)localhost_initialize();
#endif
#ifdef CONFIG_NET_TUN
/* Initialize the TUN device */
(void)tun_initialize();
#endif
#ifdef CONFIG_NETDEV_TELNET
/* Initialize the Telnet session factory */
(void)telnet_initialize();
#endif
/* Initialize USB */
up_usbinitialize();
board_autoled_on(LED_IRQSENABLED);
}
void up_initialize(void)
{
#ifdef CONFIG_NET
/* The real purpose of the following is to make sure that syslog
* is drawn into the link. It is needed by up_tapdev which is linked
* separately.
*/
syslog(LOG_INFO, "SIM: Initializing\n");
#endif
#ifdef CONFIG_PM
/* Initialize the power management subsystem. This MCU-specific function
* must be called *very* early in the initialization sequence *before* any
* other device drivers are initialized (since they may attempt to register
* with the power management subsystem).
*/
up_pminitialize();
#endif
#ifdef CONFIG_MM_IOB
/* Initialize IO buffering */
iob_initialize();
#endif
#if CONFIG_NFILE_DESCRIPTORS > 0
/* Register devices */
#if defined(CONFIG_DEV_NULL)
devnull_register(); /* Standard /dev/null */
#endif
#if defined(CONFIG_DEV_RANDOM)
devrandom_register(); /* Standard /dev/random */
#endif
#if defined(CONFIG_DEV_URANDOM)
devurandom_register(); /* Standard /dev/urandom */
#endif
#if defined(CONFIG_DEV_ZERO)
devzero_register(); /* Standard /dev/zero */
#endif
#if defined(CONFIG_DEV_LOOP)
loop_register(); /* Standard /dev/loop */
#endif
#endif /* CONFIG_NFILE_DESCRIPTORS */
#if defined(CONFIG_SCHED_INSTRUMENTATION_BUFFER) && \
defined(CONFIG_DRIVER_NOTE)
note_register(); /* Non-standard /dev/note */
#endif
#if defined(USE_DEVCONSOLE)
/* Start the sumulated UART device */
simuart_start();
/* Register a console (or not) */
up_devconsole(); /* Our private /dev/console */
#elif defined(CONFIG_CONSOLE_SYSLOG)
syslog_console_init();
#elif defined(CONFIG_RAMLOG_CONSOLE)
ramlog_consoleinit();
#endif
#if CONFIG_NFILE_DESCRIPTORS > 0 && defined(CONFIG_PSEUDOTERM_SUSV1)
/* Register the master pseudo-terminal multiplexor device */
(void)ptmx_register();
#endif
/* Early initialization of the system logging device. Some SYSLOG channel
* can be initialized early in the initialization sequence because they
* depend on only minimal OS initialization.
*/
syslog_initialize(SYSLOG_INIT_EARLY);
#if defined(CONFIG_CRYPTO)
/* Initialize the HW crypto and /dev/crypto */
up_cryptoinitialize();
#endif
#if CONFIG_NFILE_DESCRIPTORS > 0 && defined(CONFIG_CRYPTO_CRYPTODEV)
devcrypto_register();
#endif
#if defined(CONFIG_FS_FAT) && !defined(CONFIG_DISABLE_MOUNTPOINT)
up_registerblockdevice(); /* Our FAT ramdisk at /dev/ram0 */
#endif
#if defined(CONFIG_NET_ETHERNET) && defined(CONFIG_SIM_NETDEV)
netdriver_init(); /* Our "real" network driver */
#endif
#ifdef CONFIG_NETDEV_LOOPBACK
/* Initialize the local loopback device */
(void)localhost_initialize();
#endif
#ifdef CONFIG_NET_TUN
/* Initialize the TUN device */
(void)tun_initialize();
#endif
#ifdef CONFIG_NETDEV_TELNET
/* Initialize the Telnet session factory */
(void)telnet_initialize();
#endif
#if defined(CONFIG_FS_SMARTFS) && (defined(CONFIG_SIM_SPIFLASH) || defined(CONFIG_SIM_QSPIFLASH))
up_init_smartfs();
#endif
}
void up_initialize(void)
{
/* Initialize global variables */
current_regs = NULL;
/* Calibrate the timing loop */
up_calibratedelay();
/* Add any extra memory fragments to the memory manager */
#if CONFIG_MM_REGIONS > 1
up_addregion();
#endif
/* Initialize the interrupt subsystem */
up_irqinitialize();
/* Initialize the system timer interrupt */
#if !defined(CONFIG_SUPPRESS_INTERRUPTS) && !defined(CONFIG_SUPPRESS_TIMER_INTS)
up_timerinit();
#endif
/* Register devices */
#if CONFIG_NFILE_DESCRIPTORS > 0
#if defined(CONFIG_DEV_NULL)
devnull_register(); /* Standard /dev/null */
#endif
#if defined(CONFIG_DEV_ZERO)
devzero_register(); /* Standard /dev/zero */
#endif
#endif /* CONFIG_NFILE_DESCRIPTORS */
/* Initialize the serial device driver */
#ifdef USE_SERIALDRIVER
up_serialinit();
#endif
/* Initialize the console device driver (if it is other than the standard
* serial driver).
*/
#if defined(CONFIG_DEV_LOWCONSOLE)
lowconsole_init();
#elif defined(CONFIG_RAMLOG_CONSOLE)
ramlog_consoleinit();
#endif
/* Initialize the system logging device */
#ifdef CONFIG_SYSLOG_CHAR
syslog_initialize();
#endif
#ifdef CONFIG_RAMLOG_SYSLOG
ramlog_sysloginit();
#endif
/* Initialize the network */
up_netinitialize();
board_led_on(LED_IRQSENABLED);
}
int syslog_putc(int ch)
{
ssize_t nbytes;
uint8_t uch;
int errcode;
int ret;
/* Ignore any output:
*
* (1) Before the SYSLOG device has been initialized. This could happen
* from debug output that occurs early in the boot sequence before
* syslog_initialize() is called (SYSLOG_UNINITIALIZED).
* (2) While the device is being initialized. The case could happen if
* debug output is generated while syslog_initialize() executes
* (SYSLOG_INITIALIZING).
* (3) While we are generating SYSLOG output. The case could happen if
* debug output is generated while syslog_putc() executes
* (This case is actually handled inside of syslog_semtake()).
* (4) Any debug output generated from interrupt handlers. A disadvantage
* of using the generic character device for the SYSLOG is that it
* cannot handle debug output generated from interrupt level handlers.
* (5) Any debug output generated from the IDLE loop. The character
* driver interface is blocking and the IDLE thread is not permitted
* to block.
* (6) If an irrecoverable failure occurred during initialization. In
* this case, we won't ever bother to try again (ever).
*
* NOTE: That the third case is different. It applies only to the thread
* that currently holds the sl_sem sempaphore. Other threads should wait.
* that is why that case is handled in syslog_semtake().
*/
/* Cases (4) and (5) */
if (up_interrupt_context() || getpid() == 0)
{
errcode = ENOSYS;
goto errout_with_errcode;
}
/* We can save checks in the usual case: That after the SYSLOG device
* has been successfully opened.
*/
if (g_sysdev.sl_state != SYSLOG_OPENED)
{
/* Case (1) and (2) */
if (g_sysdev.sl_state == SYSLOG_UNINITIALIZED ||
g_sysdev.sl_state == SYSLOG_INITIALIZING)
{
errcode = EAGAIN; /* Can't access the SYSLOG now... maybe next time? */
goto errout_with_errcode;
}
/* Case (6) */
if (g_sysdev.sl_state == SYSLOG_FAILURE)
{
errcode = ENXIO; /* There is no SYSLOG device */
goto errout_with_errcode;
}
/* syslog_initialize() is called as soon as enough of the operating
* system is in place to support the open operation... but it is
* possible that the SYSLOG device is not yet registered at that time.
* In this case, we know that the system is sufficiently initialized
* to support an attempt to re-open the SYSLOG device.
*
* NOTE that the scheduler is locked. That is because we do not have
* fully initialized semaphore capability until the SYSLOG device is
* successfully initialized
*/
sched_lock();
if (g_sysdev.sl_state == SYSLOG_REOPEN)
{
/* Try again to initialize the device. We may do this repeatedly
* because the log device might be something that was not ready
* the first time that syslog_initializee() was called (such as a
* USB serial device that has not yet been connected or a file in
* an NFS mounted file system that has not yet been mounted).
*/
ret = syslog_initialize();
if (ret < 0)
{
sched_unlock();
errcode = -ret;
goto errout_with_errcode;
}
}
sched_unlock();
DEBUGASSERT(g_sysdev.sl_state == SYSLOG_OPENED);
}
/* Ignore carriage returns */
if (ch == '\r')
{
return ch;
}
/* The syslog device is ready for writing and we have something of
* value to write.
*/
ret = syslog_takesem();
if (ret < 0)
{
/* We probably already hold the semaphore and were probably
* re-entered by the logic kicked off by syslog_write().
* We might also have been interrupted by a signal. Either
* way, we are outta here.
*/
errcode = -ret;
goto errout_with_errcode;
}
/* Pre-pend a newline with a carriage return. */
if (ch == '\n')
{
/* Write the CR-LF sequence */
nbytes = syslog_write(g_syscrlf, 2);
/* Synchronize the file when each CR-LF is encountered (i.e.,
* implements line buffering always).
*/
#ifndef CONFIG_DISABLE_MOUNTPOINT
if (nbytes > 0)
{
syslog_flush();
}
#endif
}
else
{
/* Write the non-newline character (and don't flush) */
uch = (uint8_t)ch;
nbytes = syslog_write(&uch, 1);
}
syslog_givesem();
/* Check if the write was successful. If not, nbytes will be
* a negated errno value.
*/
if (nbytes < 0)
{
errcode = -ret;
goto errout_with_errcode;
}
return ch;
errout_with_errcode:
set_errno(errcode);
return EOF;
}
void up_initialize(void)
{
/* Initialize global variables */
INIT_IRQCONTEXT();
/* Calibrate the timing loop */
up_calibratedelay();
#if CONFIG_MM_REGIONS > 1
/* Add any extra memory fragments to the memory manager */
up_addregion();
#endif
/* Initialize the interrupt subsystem */
up_irqinitialize();
#ifdef CONFIG_PM
/* Initialize the power management subsystem. This MCU-specific function
* must be called *very* early in the initialization sequence *before* any
* other device drivers are initialized (since they may attempt to register
* with the power management subsystem).
*/
up_pminitialize();
#endif
#if !defined(CONFIG_SUPPRESS_INTERRUPTS) && !defined(CONFIG_SUPPRESS_TIMER_INTS)
/* Initialize the system timer interrupt */
z80_timer_initialize();
#endif
/* Initialize the CPU for those that use it (only for the Z180). This
* needs to be done before any tasks are created).
*/
#ifdef CONFIG_ARCH_ADDRENV
(void)up_mmuinit();
#endif
#ifdef CONFIG_MM_IOB
/* Initialize IO buffering */
iob_initialize();
#endif
#if CONFIG_NFILE_DESCRIPTORS > 0
/* Register devices */
#if defined(CONFIG_DEV_NULL)
devnull_register(); /* Standard /dev/null */
#endif
#if defined(CONFIG_DEV_RANDOM)
devrandom_register(); /* Standard /dev/random */
#endif
#if defined(CONFIG_DEV_URANDOM)
devurandom_register(); /* Standard /dev/urandom */
#endif
#if defined(CONFIG_DEV_ZERO)
devzero_register(); /* Standard /dev/zero */
#endif
#if defined(CONFIG_DEV_LOOP)
loop_register(); /* Standard /dev/loop */
#endif
#endif /* CONFIG_NFILE_DESCRIPTORS */
#if defined(CONFIG_SCHED_INSTRUMENTATION_BUFFER) && \
defined(CONFIG_DRIVER_NOTE)
note_register(); /* Non-standard /dev/note */
#endif
/* Initialize the serial device driver */
#ifdef USE_SERIALDRIVER
up_serialinit();
#endif
/* Initialize the console device driver (if it is other than the standard
* serial driver).
*/
#if defined(CONFIG_DEV_LOWCONSOLE)
lowconsole_init();
#elif defined(CONFIG_CONSOLE_SYSLOG)
syslog_console_init();
#elif defined(CONFIG_RAMLOG_CONSOLE)
ramlog_consoleinit();
#endif
#if CONFIG_NFILE_DESCRIPTORS > 0 && defined(CONFIG_PSEUDOTERM_SUSV1)
/* Register the master pseudo-terminal multiplexor device */
(void)ptmx_register();
#endif
/* Early initialization of the system logging device. Some SYSLOG channel
* can be initialized early in the initialization sequence because they
* depend on minimal OS initialization.
*/
syslog_initialize(SYSLOG_INIT_EARLY);
#if defined(CONFIG_CRYPTO)
/* Initialize the HW crypto and /dev/crypto */
up_cryptoinitialize();
#endif
#if CONFIG_NFILE_DESCRIPTORS > 0 && defined(CONFIG_CRYPTO_CRYPTODEV)
devcrypto_register();
#endif
#ifndef CONFIG_NETDEV_LATEINIT
/* Initialize the network */
up_netinitialize();
#endif
#ifdef CONFIG_NETDEV_LOOPBACK
/* Initialize the local loopback device */
(void)localhost_initialize();
#endif
#ifdef CONFIG_NET_TUN
/* Initialize the TUN device */
(void)tun_initialize();
#endif
#ifdef CONFIG_NETDEV_TELNET
/* Initialize the Telnet session factory */
(void)telnet_initialize();
#endif
board_autoled_on(LED_IRQSENABLED);
}
void up_initialize(void)
{
/* Initialize global variables */
g_current_regs = NULL;
/* Calibrate the timing loop */
up_calibratedelay();
/* Add any extra memory fragments to the memory manager */
up_addregion();
/* Initialize the interrupt subsystem */
up_irqinitialize();
/* Initialize the DMA subsystem if the weak function stm32_dmainitialize has been
* brought into the build
*/
#ifdef CONFIG_ARCH_DMA
#ifdef CONFIG_HAVE_WEAKFUNCTIONS
if (up_dmainitialize)
#endif
{
up_dmainitialize();
}
#endif
/* Initialize the system timer interrupt */
#if !defined(CONFIG_SUPPRESS_INTERRUPTS) && !defined(CONFIG_SUPPRESS_TIMER_INTS)
up_timer_initialize();
#endif
/* Register devices */
#if CONFIG_NFILE_DESCRIPTORS > 0
#if defined(CONFIG_DEV_NULL)
devnull_register(); /* Standard /dev/null */
#endif
#if defined(CONFIG_DEV_ZERO)
devzero_register(); /* Standard /dev/zero */
#endif
#if defined(CONFIG_DEV_LOOP)
loop_register(); /* Standard /dev/loop */
#endif
#endif /* CONFIG_NFILE_DESCRIPTORS */
#if defined(CONFIG_SCHED_INSTRUMENTATION_BUFFER) && \
defined(CONFIG_DRIVER_NOTE)
note_register(); /* Non-standard /dev/note */
#endif
/* Initialize the serial device driver */
#ifdef USE_SERIALDRIVER
up_serialinit();
#endif
/* Initialize the console device driver (if it is other than the standard
* serial driver).
*/
#if defined(CONFIG_DEV_LOWCONSOLE)
lowconsole_init();
#elif defined(CONFIG_CONSOLE_SYSLOG)
syslog_console_init();
#elif defined(CONFIG_RAMLOG_CONSOLE)
ramlog_consoleinit();
#endif
#if CONFIG_NFILE_DESCRIPTORS > 0 && defined(CONFIG_PSEUDOTERM_SUSV1)
/* Register the master pseudo-terminal multiplexor device */
(void)ptmx_register();
#endif
/* Early initialization of the system logging device. Some SYSLOG channel
* can be initialized early in the initialization sequence because they
* depend on only minimal OS initialization.
*/
syslog_initialize(SYSLOG_INIT_EARLY);
#if defined(CONFIG_CRYPTO)
/* Initialize the HW crypto and /dev/crypto */
up_cryptoinitialize();
#endif
#if CONFIG_NFILE_DESCRIPTORS > 0 && defined(CONFIG_CRYPTO_CRYPTODEV)
devcrypto_register();
#endif
#ifdef CONFIG_DEV_RANDOM
/* Initialize the Random Number Generator (RNG) */
up_rnginitialize();
#endif
#ifndef CONFIG_NETDEV_LATEINIT
/* Initialize the network */
up_netinitialize();
#endif
#ifdef CONFIG_NETDEV_LOOPBACK
/* Initialize the local loopback device */
(void)localhost_initialize();
#endif
#ifdef CONFIG_NET_TUN
/* Initialize the TUN device */
(void)tun_initialize();
#endif
#ifdef CONFIG_NETDEV_TELNET
/* Initialize the Telnet session factory */
(void)telnet_initialize();
#endif
/* Initialize USB -- device and/or host */
up_usbinitialize();
board_autoled_on(LED_IRQSENABLED);
}
