cuda_instance_t *cuda_init(cuda_t *dev, inr_t inr, cir_t cir, void *cir_arg)
{
cuda_instance_t *instance
= malloc(sizeof(cuda_instance_t), FRAME_ATOMIC);
if (instance) {
instance->cuda = dev;
instance->kbrdin = NULL;
instance->xstate = cx_listen;
instance->bidx = 0;
instance->snd_bytes = 0;
spinlock_initialize(&instance->dev_lock, "cuda.instance.dev_lock");
/* Disable all interrupts from CUDA. */
pio_write_8(&dev->ier, IER_CLR | ALL_INT);
irq_initialize(&instance->irq);
instance->irq.devno = device_assign_devno();
instance->irq.inr = inr;
instance->irq.claim = cuda_claim;
instance->irq.handler = cuda_irq_handler;
instance->irq.instance = instance;
instance->irq.cir = cir;
instance->irq.cir_arg = cir_arg;
instance->irq.preack = true;
}
return instance;
}
/** Initializes and registers timer interrupt handler. */
static void icp_timer_irq_init(void)
{
irq_initialize(&icp.timer_irq);
icp.timer_irq.devno = device_assign_devno();
icp.timer_irq.inr = ICP_TIMER_IRQ;
icp.timer_irq.claim = icp_timer_claim;
icp.timer_irq.handler = icp_timer_irq_handler;
irq_register(&icp.timer_irq);
}
static void raspberrypi_timer_irq_start(void)
{
/* Initialize timer IRQ */
static irq_t timer_irq;
irq_initialize(&timer_irq);
timer_irq.devno = device_assign_devno();
timer_irq.inr = BCM2835_TIMER1_IRQ;
timer_irq.claim = raspberrypi_timer_irq_claim;
timer_irq.handler = raspberrypi_timer_irq_handler;
irq_register(&timer_irq);
bcm2835_irc_enable(raspi.irc, BCM2835_TIMER1_IRQ);
bcm2835_timer_start(raspi.timer);
}
/** Initialize ns16550.
*
* @param dev Addrress of the beginning of the device in I/O space.
* @param inr Interrupt number.
* @param cir Clear interrupt function.
* @param cir_arg First argument to cir.
* @param output Where to store pointer to the output device
* or NULL if the caller is not interested in
* writing to the serial port.
*
* @return Keyboard instance or NULL on failure.
*
*/
ns16550_instance_t *ns16550_init(ns16550_t *dev, inr_t inr, cir_t cir,
void *cir_arg, outdev_t **output)
{
ns16550_instance_t *instance
= malloc(sizeof(ns16550_instance_t), FRAME_ATOMIC);
if (instance) {
instance->ns16550 = dev;
instance->input = NULL;
instance->output = NULL;
if (output) {
instance->output = malloc(sizeof(outdev_t),
FRAME_ATOMIC);
if (!instance->output) {
free(instance);
return NULL;
}
outdev_initialize("ns16550", instance->output,
&ns16550_ops);
instance->output->data = instance;
*output = instance->output;
}
irq_initialize(&instance->irq);
instance->irq.devno = device_assign_devno();
instance->irq.inr = inr;
instance->irq.claim = ns16550_claim;
instance->irq.handler = ns16550_irq_handler;
instance->irq.instance = instance;
instance->irq.cir = cir;
instance->irq.cir_arg = cir_arg;
instance->parea.pbase = (uintptr_t) dev;
instance->parea.frames = 1;
instance->parea.unpriv = false;
instance->parea.mapped = false;
ddi_parea_register(&instance->parea);
}
return instance;
}
int main(void)
{
int vmode = -1;
exception_init();
dsp_reset();
irq_initialize();
irq_bw_enable(BW_PI_IRQ_RESET);
irq_bw_enable(BW_PI_IRQ_HW); //hollywood pic
/* external ohci */
irq_hw_enable(IRQ_OHCI0);
/* internal ohci */
//irq_hw_enable(IRQ_OHCI1);
ipc_initialize();
ipc_slowping();
gecko_init();
input_init();
init_fb(vmode);
VIDEO_Init(vmode);
VIDEO_SetFrameBuffer(get_xfb());
VISetupEncoder();
u32 version = ipc_getvers();
u16 mini_version_major = version >> 16 & 0xFFFF;
u16 mini_version_minor = version & 0xFFFF;
printf("Mini version: %d.%0d\n", mini_version_major, mini_version_minor);
if (version < MINIMUM_MINI_VERSION) {
printf("Sorry, this version of MINI (armboot.bin)\n"
"is too old, please update to at least %d.%0d.\n",
(MINIMUM_MINI_VERSION >> 16), (MINIMUM_MINI_VERSION & 0xFFFF));
for (;;)
; // better ideas welcome!
}
void os_start(void)
{
int i;
slldbg("Entry\n");
/* Initialize all task lists */
dq_init(&g_readytorun);
dq_init(&g_pendingtasks);
dq_init(&g_waitingforsemaphore);
#ifndef CONFIG_DISABLE_SIGNALS
dq_init(&g_waitingforsignal);
#endif
#ifndef CONFIG_DISABLE_MQUEUE
dq_init(&g_waitingformqnotfull);
dq_init(&g_waitingformqnotempty);
#endif
#ifdef CONFIG_PAGING
dq_init(&g_waitingforfill);
#endif
dq_init(&g_inactivetasks);
sq_init(&g_delayeddeallocations);
/* Initialize the logic that determine unique process IDs. */
g_lastpid = 0;
for (i = 0; i < CONFIG_MAX_TASKS; i++)
{
g_pidhash[i].tcb = NULL;
g_pidhash[i].pid = INVALID_PROCESS_ID;
}
/* Assign the process ID of ZERO to the idle task */
g_pidhash[ PIDHASH(0)].tcb = &g_idletcb;
g_pidhash[ PIDHASH(0)].pid = 0;
/* Initialize a TCB for this thread of execution. NOTE: The default
* value for most components of the g_idletcb are zero. The entire
* structure is set to zero. Then only the (potentially) non-zero
* elements are initialized. NOTE: The idle task is the only task in
* that has pid == 0 and sched_priority == 0.
*/
bzero((void*)&g_idletcb, sizeof(_TCB));
g_idletcb.task_state = TSTATE_TASK_RUNNING;
g_idletcb.entry.main = (main_t)os_start;
#if CONFIG_TASK_NAME_SIZE > 0
strncpy(g_idletcb.name, g_idlename, CONFIG_TASK_NAME_SIZE-1);
g_idletcb.argv[0] = g_idletcb.name;
#else
g_idletcb.argv[0] = (char*)g_idlename;
#endif /* CONFIG_TASK_NAME_SIZE */
/* Then add the idle task's TCB to the head of the ready to run list */
dq_addfirst((FAR dq_entry_t*)&g_idletcb, (FAR dq_queue_t*)&g_readytorun);
/* Initialize the processor-specific portion of the TCB */
g_idletcb.flags = TCB_FLAG_TTYPE_KERNEL;
up_initial_state(&g_idletcb);
/* Initialize the semaphore facility(if in link). This has to be done
* very early because many subsystems depend upon fully functional
* semaphores.
*/
#ifdef CONFIG_HAVE_WEAKFUNCTIONS
if (sem_initialize != NULL)
#endif
{
sem_initialize();
}
/* Initialize the memory manager */
#ifndef CONFIG_HEAP_BASE
{
FAR void *heap_start;
size_t heap_size;
up_allocate_heap(&heap_start, &heap_size);
kmm_initialize(heap_start, heap_size);
}
#else
kmm_initialize((void*)CONFIG_HEAP_BASE, CONFIG_HEAP_SIZE);
#endif
/* Initialize the interrupt handling subsystem (if included) */
#ifdef CONFIG_HAVE_WEAKFUNCTIONS
if (irq_initialize != NULL)
#endif
{
irq_initialize();
}
/* Initialize the watchdog facility (if included in the link) */
#ifdef CONFIG_HAVE_WEAKFUNCTIONS
if (wd_initialize != NULL)
#endif
{
wd_initialize();
}
/* Initialize the POSIX timer facility (if included in the link) */
#ifndef CONFIG_DISABLE_CLOCK
#ifdef CONFIG_HAVE_WEAKFUNCTIONS
if (clock_initialize != NULL)
#endif
{
clock_initialize();
}
#endif
#ifndef CONFIG_DISABLE_POSIX_TIMERS
#ifdef CONFIG_HAVE_WEAKFUNCTIONS
if (timer_initialize != NULL)
#endif
{
timer_initialize();
}
#endif
/* Initialize the signal facility (if in link) */
#ifndef CONFIG_DISABLE_SIGNALS
#ifdef CONFIG_HAVE_WEAKFUNCTIONS
if (sig_initialize != NULL)
#endif
{
sig_initialize();
}
#endif
/* Initialize the named message queue facility (if in link) */
#ifndef CONFIG_DISABLE_MQUEUE
#ifdef CONFIG_HAVE_WEAKFUNCTIONS
if (mq_initialize != NULL)
#endif
{
mq_initialize();
}
#endif
/* Initialize the thread-specific data facility (if in link) */
#ifndef CONFIG_DISABLE_PTHREAD
#ifdef CONFIG_HAVE_WEAKFUNCTIONS
if (pthread_initialize != NULL)
#endif
{
pthread_initialize();
}
#endif
/* Initialize the file system (needed to support device drivers) */
#if CONFIG_NFILE_DESCRIPTORS > 0
#ifdef CONFIG_HAVE_WEAKFUNCTIONS
if (fs_initialize != NULL)
#endif
{
fs_initialize();
}
#endif
/* Initialize the network system */
#ifdef CONFIG_NET
#if 0
if (net_initialize != NULL)
#endif
{
net_initialize();
}
#endif
/* The processor specific details of running the operating system
* will be handled here. Such things as setting up interrupt
* service routines and starting the clock are some of the things
* that are different for each processor and hardware platform.
*/
up_initialize();
/* Initialize the C libraries (if included in the link). This
* is done last because the libraries may depend on the above.
*/
#ifdef CONFIG_HAVE_WEAKFUNCTIONS
if (lib_initialize != NULL)
#endif
{
lib_initialize();
}
/* Create stdout, stderr, stdin on the IDLE task. These will be
* inherited by all of the threads created by the IDLE task.
*/
(void)sched_setupidlefiles(&g_idletcb);
/* Create initial tasks and bring-up the system */
(void)os_bringup();
/* When control is return to this point, the system is idle. */
sdbg("Beginning Idle Loop\n");
for (;;)
{
/* Perform garbage collection (if it is not being done by the worker
* thread). This cleans-up memory de-allocations that were queued
* because they could not be freed in that execution context (for
* example, if the memory was freed from an interrupt handler).
*/
#ifndef CONFIG_SCHED_WORKQUEUE
/* We must have exclusive access to the memory manager to do this
* BUT the idle task cannot wait on a semaphore. So we only do
* the cleanup now if we can get the semaphore -- this should be
* possible because if the IDLE thread is running, no other task is!
*/
if (kmm_trysemaphore() == 0)
{
sched_garbagecollection();
kmm_givesemaphore();
}
#endif
/* Perform any processor-specific idle state operations */
up_idle();
}
}
void os_start(void)
{
int i;
slldbg("Entry\n");
/* Initialize RTOS Data ***************************************************/
/* Initialize all task lists */
dq_init(&g_readytorun);
dq_init(&g_pendingtasks);
dq_init(&g_waitingforsemaphore);
#ifndef CONFIG_DISABLE_SIGNALS
dq_init(&g_waitingforsignal);
#endif
#ifndef CONFIG_DISABLE_MQUEUE
dq_init(&g_waitingformqnotfull);
dq_init(&g_waitingformqnotempty);
#endif
#ifdef CONFIG_PAGING
dq_init(&g_waitingforfill);
#endif
dq_init(&g_inactivetasks);
sq_init(&g_delayed_kufree);
#if (defined(CONFIG_BUILD_PROTECTED) || defined(CONFIG_BUILD_KERNEL)) && \
defined(CONFIG_MM_KERNEL_HEAP)
sq_init(&g_delayed_kfree);
#endif
/* Initialize the logic that determine unique process IDs. */
g_lastpid = 0;
for (i = 0; i < CONFIG_MAX_TASKS; i++)
{
g_pidhash[i].tcb = NULL;
g_pidhash[i].pid = INVALID_PROCESS_ID;
}
/* Assign the process ID of ZERO to the idle task */
g_pidhash[PIDHASH(0)].tcb = &g_idletcb.cmn;
g_pidhash[PIDHASH(0)].pid = 0;
/* Initialize the IDLE task TCB *******************************************/
/* Initialize a TCB for this thread of execution. NOTE: The default
* value for most components of the g_idletcb are zero. The entire
* structure is set to zero. Then only the (potentially) non-zero
* elements are initialized. NOTE: The idle task is the only task in
* that has pid == 0 and sched_priority == 0.
*/
bzero((void*)&g_idletcb, sizeof(struct task_tcb_s));
g_idletcb.cmn.task_state = TSTATE_TASK_RUNNING;
g_idletcb.cmn.entry.main = (main_t)os_start;
g_idletcb.cmn.flags = TCB_FLAG_TTYPE_KERNEL;
/* Set the IDLE task name */
#if CONFIG_TASK_NAME_SIZE > 0
strncpy(g_idletcb.cmn.name, g_idlename, CONFIG_TASK_NAME_SIZE);
g_idletcb.cmn.name[CONFIG_TASK_NAME_SIZE] = '\0';
#endif /* CONFIG_TASK_NAME_SIZE */
/* Configure the task name in the argument list. The IDLE task does
* not really have an argument list, but this name is still useful
* for things like the NSH PS command.
*
* In the kernel mode build, the arguments are saved on the task's stack
* and there is no support that yet.
*/
#if CONFIG_TASK_NAME_SIZE > 0
g_idleargv[0] = g_idletcb.cmn.name;
#else
g_idleargv[0] = (FAR char *)g_idlename;
#endif /* CONFIG_TASK_NAME_SIZE */
g_idleargv[1] = NULL;
g_idletcb.argv = g_idleargv;
/* Then add the idle task's TCB to the head of the ready to run list */
dq_addfirst((FAR dq_entry_t*)&g_idletcb, (FAR dq_queue_t*)&g_readytorun);
/* Initialize the processor-specific portion of the TCB */
up_initial_state(&g_idletcb.cmn);
/* Initialize RTOS facilities *********************************************/
/* Initialize the semaphore facility. This has to be done very early
* because many subsystems depend upon fully functional semaphores.
*/
sem_initialize();
#if defined(MM_KERNEL_USRHEAP_INIT) || defined(CONFIG_MM_KERNEL_HEAP) || defined(CONFIG_MM_PGALLOC)
/* Initialize the memory manager */
{
FAR void *heap_start;
size_t heap_size;
#ifdef MM_KERNEL_USRHEAP_INIT
/* Get the user-mode heap from the platform specific code and configure
* the user-mode memory allocator.
*/
up_allocate_heap(&heap_start, &heap_size);
kumm_initialize(heap_start, heap_size);
#endif
#ifdef CONFIG_MM_KERNEL_HEAP
/* Get the kernel-mode heap from the platform specific code and configure
* the kernel-mode memory allocator.
*/
up_allocate_kheap(&heap_start, &heap_size);
kmm_initialize(heap_start, heap_size);
#endif
#ifdef CONFIG_MM_PGALLOC
/* If there is a page allocator in the configuration, then get the page
* heap information from the platform-specific code and configure the
* page allocator.
*/
up_allocate_pgheap(&heap_start, &heap_size);
mm_pginitialize(heap_start, heap_size);
#endif
}
#endif
#if defined(CONFIG_SCHED_HAVE_PARENT) && defined(CONFIG_SCHED_CHILD_STATUS)
/* Initialize tasking data structures */
#ifdef CONFIG_HAVE_WEAKFUNCTIONS
if (task_initialize != NULL)
#endif
{
task_initialize();
}
#endif
/* Initialize the interrupt handling subsystem (if included) */
#ifdef CONFIG_HAVE_WEAKFUNCTIONS
if (irq_initialize != NULL)
#endif
{
irq_initialize();
}
/* Initialize the watchdog facility (if included in the link) */
#ifdef CONFIG_HAVE_WEAKFUNCTIONS
if (wd_initialize != NULL)
#endif
{
wd_initialize();
}
/* Initialize the POSIX timer facility (if included in the link) */
#ifdef CONFIG_HAVE_WEAKFUNCTIONS
if (clock_initialize != NULL)
#endif
{
clock_initialize();
}
#ifndef CONFIG_DISABLE_POSIX_TIMERS
#ifdef CONFIG_HAVE_WEAKFUNCTIONS
if (timer_initialize != NULL)
#endif
{
timer_initialize();
}
#endif
#ifndef CONFIG_DISABLE_SIGNALS
/* Initialize the signal facility (if in link) */
#ifdef CONFIG_HAVE_WEAKFUNCTIONS
if (sig_initialize != NULL)
#endif
{
sig_initialize();
}
#endif
#ifndef CONFIG_DISABLE_MQUEUE
/* Initialize the named message queue facility (if in link) */
#ifdef CONFIG_HAVE_WEAKFUNCTIONS
if (mq_initialize != NULL)
#endif
{
mq_initialize();
}
#endif
#ifndef CONFIG_DISABLE_PTHREAD
/* Initialize the thread-specific data facility (if in link) */
#ifdef CONFIG_HAVE_WEAKFUNCTIONS
if (pthread_initialize != NULL)
#endif
{
pthread_initialize();
}
#endif
#if CONFIG_NFILE_DESCRIPTORS > 0
/* Initialize the file system (needed to support device drivers) */
fs_initialize();
#endif
#ifdef CONFIG_NET
/* Initialize the networking system. Network initialization is
* performed in two steps: (1) net_setup() initializes static
* configuration of the network support. This must be done prior
* to registering network drivers by up_initialize(). This step
* cannot require upon any hardware-depending features such as
* timers or interrupts.
*/
net_setup();
#endif
/* The processor specific details of running the operating system
* will be handled here. Such things as setting up interrupt
* service routines and starting the clock are some of the things
* that are different for each processor and hardware platform.
*/
up_initialize();
#ifdef CONFIG_NET
/* Complete initialization the networking system now that interrupts
* and timers have been configured by up_initialize().
*/
net_initialize();
#endif
#ifdef CONFIG_MM_SHM
/* Initialize shared memory support */
shm_initialize();
#endif
/* Initialize the C libraries. This is done last because the libraries
* may depend on the above.
*/
lib_initialize();
/* IDLE Group Initialization **********************************************/
#ifdef HAVE_TASK_GROUP
/* Allocate the IDLE group */
DEBUGVERIFY(group_allocate(&g_idletcb, g_idletcb.cmn.flags));
#endif
#if CONFIG_NFILE_DESCRIPTORS > 0 || CONFIG_NSOCKET_DESCRIPTORS > 0
/* Create stdout, stderr, stdin on the IDLE task. These will be
* inherited by all of the threads created by the IDLE task.
*/
DEBUGVERIFY(group_setupidlefiles(&g_idletcb));
#endif
#ifdef HAVE_TASK_GROUP
/* Complete initialization of the IDLE group. Suppress retention
* of child status in the IDLE group.
*/
DEBUGVERIFY(group_initialize(&g_idletcb));
g_idletcb.cmn.group->tg_flags = GROUP_FLAG_NOCLDWAIT;
#endif
/* Bring Up the System ****************************************************/
/* Create initial tasks and bring-up the system */
DEBUGVERIFY(os_bringup());
/* The IDLE Loop **********************************************************/
/* When control is return to this point, the system is idle. */
sdbg("Beginning Idle Loop\n");
for (;;)
{
/* Perform garbage collection (if it is not being done by the worker
* thread). This cleans-up memory de-allocations that were queued
* because they could not be freed in that execution context (for
* example, if the memory was freed from an interrupt handler).
*/
#ifndef CONFIG_SCHED_WORKQUEUE
/* We must have exclusive access to the memory manager to do this
* BUT the idle task cannot wait on a semaphore. So we only do
* the cleanup now if we can get the semaphore -- this should be
* possible because if the IDLE thread is running, no other task is!
*
* WARNING: This logic could have undesirable side-effects if priority
* inheritance is enabled. Imaginee the possible issues if the
* priority of the IDLE thread were to get boosted! Moral: If you
* use priority inheritance, then you should also enable the work
* queue so that is done in a safer context.
*/
if (kmm_trysemaphore() == 0)
{
sched_garbagecollection();
kmm_givesemaphore();
}
#endif
/* Perform any processor-specific idle state operations */
up_idle();
}
}
u32 _main(void *base)
{
FRESULT fres;
int res;
u32 vector;
(void)base;
gecko_init();
gecko_printf("mini %s loading\n", git_version);
gecko_printf("Initializing exceptions...\n");
exception_initialize();
gecko_printf("Configuring caches and MMU...\n");
mem_initialize();
gecko_printf("IOSflags: %08x %08x %08x\n",
read32(0xffffff00), read32(0xffffff04), read32(0xffffff08));
gecko_printf(" %08x %08x %08x\n",
read32(0xffffff0c), read32(0xffffff10), read32(0xffffff14));
irq_initialize();
irq_enable(IRQ_TIMER);
// irq_enable(IRQ_GPIO1B);
irq_enable(IRQ_GPIO1);
irq_enable(IRQ_RESET);
gecko_timer_initialize();
gecko_printf("Interrupts initialized\n");
crypto_initialize();
gecko_printf("crypto support initialized\n");
nand_initialize();
gecko_printf("NAND initialized.\n");
boot2_init();
gecko_printf("Initializing IPC...\n");
ipc_initialize();
gecko_printf("Initializing SDHC...\n");
sdhc_init();
gecko_printf("Mounting SD...\n");
fres = f_mount(0, &fatfs);
//if (read32(0x0d800190) & 2)
//{
// gecko_printf("GameCube compatibility mode detected...\n");
vector = boot2_run(1, 2);
// goto shutdown;
//}
//if(fres != FR_OK)
//{
// gecko_printf("Error %d while trying to mount SD\n", fres);
// panic2(0, PANIC_MOUNT);
//}
//gecko_printf("Trying to boot:" PPC_BOOT_FILE "\n");
//res = powerpc_boot_file(PPC_BOOT_FILE);
//if(res < 0) {
// gecko_printf("Failed to boot PPC: %d\n", res);
// gecko_printf("Continuing anyway\n");
//}
//gecko_printf("Going into IPC mainloop...\n");
//vector = ipc_process_slow();
//gecko_printf("IPC mainloop done!\n");
gecko_printf("Shutting down IPC...\n");
ipc_shutdown();
shutdown:
gecko_printf("Shutting down interrupts...\n");
irq_shutdown();
gecko_printf("Shutting down caches and MMU...\n");
mem_shutdown();
gecko_printf("Vectoring to 0x%08x...\n", vector);
return vector;
}
