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Do core interrupt masking in a less general fashion and save some instructions to decrease size and speed things up a little bit. Small fix to a few places where interrupts would get enabled again where they shouldn't have been (context switching calls when disabled).

Browse source 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@16811 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Michael Sevakis 2008-03-26 01:50:41 +00:00
parent 74d678fdbc
commit af395f4db6
61 changed files with 381 additions and 278 deletions
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15
apps/debug_menu.c
View file

@ -417,7 +417,7 @@ static bool dbg_flash_id(unsigned* p_manufacturer, unsigned* p_device,
not_id = flash[1]; /* should be 'A' (0x41) and 'R' (0x52) from the "ARCH" marker */
/* disable interrupts, prevent any stray flash access */
old_level = set_irq_level(HIGHEST_IRQ_LEVEL);
old_level = disable_irq_save();
flash[addr1] = 0xAA; /* enter command mode */
flash[addr2] = 0x55;
@ -432,7 +432,7 @@ static bool dbg_flash_id(unsigned* p_manufacturer, unsigned* p_device,
/* Atmel wants 20ms pause here */
/* sleep(HZ/50); no sleeping possible while interrupts are disabled */
set_irq_level(old_level); /* enable interrupts again */
restore_irq(old_level); /* enable interrupts again */
/* I assume success if the obtained values are different from
the normal flash content. This is not perfectly bulletproof, they
@ -2066,9 +2066,12 @@ static bool dbg_save_roms(void)
char buf[EEPROM_SIZE];
int err;
old_irq_level = set_irq_level(HIGHEST_IRQ_LEVEL);
old_irq_level = disable_irq_save();
err = eeprom_24cxx_read(0, buf, sizeof buf);
restore_irq(old_irq_level);
if (err)
gui_syncsplash(HZ*3, "Eeprom read failure (%d)",err);
else
@ -2076,8 +2079,6 @@ static bool dbg_save_roms(void)
write(fd, buf, sizeof buf);
}
set_irq_level(old_irq_level);
close(fd);
}
#endif
@ -2248,7 +2249,7 @@ static bool dbg_write_eeprom(void)
if(rc == EEPROM_SIZE)
{
old_irq_level = set_irq_level(HIGHEST_IRQ_LEVEL);
old_irq_level = disable_irq_save();
err = eeprom_24cxx_write(0, buf, sizeof buf);
if (err)
@ -2256,7 +2257,7 @@ static bool dbg_write_eeprom(void)
else
gui_syncsplash(HZ*3, "Eeprom written successfully");
set_irq_level(old_irq_level);
restore_irq(old_irq_level);
}
else
{

6
apps/main.c
View file

@ -272,7 +272,7 @@ static void init(void)
{
kernel_init();
buffer_init();
set_irq_level(0);
enable_irq();
lcd_init();
#ifdef HAVE_REMOTE_LCD
lcd_remote_init();
@ -360,9 +360,9 @@ static void init(void)
power_init();
set_irq_level(0);
enable_irq();
#ifdef CPU_ARM
set_fiq_status(FIQ_ENABLED);
enable_fiq();
#endif
lcd_init();
#ifdef HAVE_REMOTE_LCD

4
apps/plugins/wavplay.c
View file

@ -3345,7 +3345,7 @@ void dma_end_isr(void)
void demand_irq_enable(bool on)
{
int oldlevel = set_irq_level(HIGHEST_IRQ_LEVEL);
int oldlevel = disable_irq_save();
if(on)
{
@ -3357,7 +3357,7 @@ void demand_irq_enable(bool on)
IPRA &= 0xfff0;
}
set_irq_level(oldlevel);
restore_irq(oldlevel);
}
static inline int available(void)

4
apps/plugins/wavrecord.c
View file

@ -3415,7 +3415,7 @@ void rec_tick(void)
void rec_tick_enable(bool on)
{
int oldlevel = set_irq_level(HIGHEST_IRQ_LEVEL);
int oldlevel = disable_irq_save();
if(on)
{
@ -3431,7 +3431,7 @@ void rec_tick_enable(bool on)
IPRB = (IPRB & 0xff0f) | 0x0080; /* Reenable IRQ6 */
}
set_irq_level(oldlevel);
restore_irq(oldlevel);
}
void hijack_interrupts(bool on)

2
bootloader/iaudio_coldfire.c
View file

@ -164,7 +164,7 @@ void main(void)
set_cpu_frequency(CPUFREQ_NORMAL);
coldfire_set_pllcr_audio_bits(DEFAULT_PLLCR_AUDIO_BITS);
set_irq_level(0);
enable_irq();
lcd_init();
#ifdef HAVE_REMOTE_LCD
lcd_remote_init();

2
bootloader/iriver_h1x0.c
View file

@ -435,7 +435,7 @@ void main(void)
coldfire_set_pllcr_audio_bits(DEFAULT_PLLCR_AUDIO_BITS);
#endif
#endif
set_irq_level(0);
enable_irq();
#ifdef HAVE_EEPROM_SETTINGS
initialize_eeprom();

6
bootloader/iriver_h300.c
View file

@ -175,10 +175,10 @@ void main(void)
}
/* get rid of a nasty humming sound during boot */
mask = set_irq_level(HIGHEST_IRQ_LEVEL);
mask = disable_irq_save();
pcf50606_write(0x3b, 0x00); /* GPOOD2 high Z */
pcf50606_write(0x3b, 0x07); /* GPOOD2 low */
set_irq_level(mask);
restore_irq(mask);
/* Start with the main backlight OFF. */
_backlight_init();
@ -192,7 +192,7 @@ void main(void)
/* Set up waitstates for the peripherals */
set_cpu_frequency(0); /* PLL off */
coldfire_set_pllcr_audio_bits(DEFAULT_PLLCR_AUDIO_BITS);
set_irq_level(0);
enable_irq();
isp1362_init();

4
bootloader/mrobe500.c
View file

@ -174,8 +174,8 @@ void main(void)
system_init();
kernel_init();
set_irq_level(0);
set_fiq_status(FIQ_ENABLED);
enable_irq();
enable_fiq();
adc_init();
button_init();

4
firmware/drivers/audio/uda1380.c
View file

@ -203,10 +203,10 @@ void audiohw_enable_output(bool enable)
static void reset(void)
{
#ifdef IRIVER_H300_SERIES
int mask = set_irq_level(HIGHEST_IRQ_LEVEL);
int mask = disable_irq_save();
pcf50606_write(0x3b, 0x00); /* GPOOD2 high Z */
pcf50606_write(0x3b, 0x07); /* GPOOD2 low */
set_irq_level(mask);
restore_irq(mask);
#else
/* RESET signal */
or_l(1<<29, &GPIO_OUT);

4
firmware/drivers/button.c
View file

@ -465,10 +465,10 @@ void button_set_flip(bool flip)
if (flip != flipped) /* not the current setting */
{
/* avoid race condition with the button_tick() */
int oldlevel = set_irq_level(HIGHEST_IRQ_LEVEL);
int oldlevel = disable_irq_save();
lastbtn = button_flip(lastbtn);
flipped = flip;
set_irq_level(oldlevel);
restore_irq(oldlevel);
}
}
#endif /* HAVE_LCD_BITMAP */

8
firmware/drivers/rtc/rtc_pcf50606.c
View file

@ -30,21 +30,21 @@ void rtc_init(void)
int rtc_read_datetime(unsigned char* buf) {
int rc;
int oldlevel = set_irq_level(HIGHEST_IRQ_LEVEL);
int oldlevel = disable_irq_save();
rc = pcf50606_read_multiple(0x0a, buf, 7);
set_irq_level(oldlevel);
restore_irq(oldlevel);
return rc;
}
int rtc_write_datetime(unsigned char* buf) {
int rc;
int oldlevel = set_irq_level(HIGHEST_IRQ_LEVEL);
int oldlevel = disable_irq_save();
rc = pcf50606_write_multiple(0x0a, buf, 7);
set_irq_level(oldlevel);
restore_irq(oldlevel);
return rc;
}

96
firmware/kernel.c
View file

@ -270,7 +270,7 @@ void tick_start(unsigned int interval_in_ms)
int tick_add_task(void (*f)(void))
{
int i;
int oldlevel = set_irq_level(HIGHEST_IRQ_LEVEL);
int oldlevel = disable_irq_save();
/* Add a task if there is room */
for(i = 0;i < MAX_NUM_TICK_TASKS;i++)
@ -278,11 +278,11 @@ int tick_add_task(void (*f)(void))
if(tick_funcs[i] == NULL)
{
tick_funcs[i] = f;
set_irq_level(oldlevel);
restore_irq(oldlevel);
return 0;
}
}
set_irq_level(oldlevel);
restore_irq(oldlevel);
panicf("Error! tick_add_task(): out of tasks");
return -1;
}
@ -290,7 +290,7 @@ int tick_add_task(void (*f)(void))
int tick_remove_task(void (*f)(void))
{
int i;
int oldlevel = set_irq_level(HIGHEST_IRQ_LEVEL);
int oldlevel = disable_irq_save();
/* Remove a task if it is there */
for(i = 0;i < MAX_NUM_TICK_TASKS;i++)
@ -298,12 +298,12 @@ int tick_remove_task(void (*f)(void))
if(tick_funcs[i] == f)
{
tick_funcs[i] = NULL;
set_irq_level(oldlevel);
restore_irq(oldlevel);
return 0;
}
}
set_irq_level(oldlevel);
restore_irq(oldlevel);
return -1;
}
@ -341,7 +341,7 @@ static void timeout_tick(void)
/* Cancels a timeout callback - can be called from the ISR */
void timeout_cancel(struct timeout *tmo)
{
int oldlevel = set_irq_level(HIGHEST_IRQ_LEVEL);
int oldlevel = disable_irq_save();
if (tmo_list != NULL)
{
@ -368,7 +368,7 @@ void timeout_cancel(struct timeout *tmo)
/* not in list or tmo == NULL */
}
set_irq_level(oldlevel);
restore_irq(oldlevel);
}
/* Adds a timeout callback - calling with an active timeout resets the
@ -382,7 +382,7 @@ void timeout_register(struct timeout *tmo, timeout_cb_type callback,
if (tmo == NULL)
return;
oldlevel = set_irq_level(HIGHEST_IRQ_LEVEL);
oldlevel = disable_irq_save();
/* see if this one is already registered */
curr = tmo_list;
@ -404,7 +404,7 @@ void timeout_register(struct timeout *tmo, timeout_cb_type callback,
tmo->data = data;
*(long *)&tmo->expires = current_tick + ticks;
set_irq_level(oldlevel);
restore_irq(oldlevel);
}
#endif /* INCLUDE_TIMEOUT_API */
@ -433,7 +433,7 @@ void sleep(int ticks)
while (TIME_BEFORE(USEC_TIMER, stop))
switch_thread();
#else
set_irq_level(HIGHEST_IRQ_LEVEL);
disable_irq();
sleep_thread(ticks);
switch_thread();
#endif
@ -537,7 +537,7 @@ void queue_enable_queue_send(struct event_queue *q,
struct queue_sender_list *send,
struct thread_entry *owner)
{
int oldlevel = set_irq_level(HIGHEST_IRQ_LEVEL);
int oldlevel = disable_irq_save();
corelock_lock(&q->cl);
if(send != NULL && q->send == NULL)
@ -554,7 +554,7 @@ void queue_enable_queue_send(struct event_queue *q,
}
corelock_unlock(&q->cl);
set_irq_level(oldlevel);
restore_irq(oldlevel);
(void)owner;
}
@ -618,7 +618,7 @@ static inline void queue_do_fetch_sender(struct queue_sender_list *send,
/* Queue must not be available for use during this call */
void queue_init(struct event_queue *q, bool register_queue)
{
int oldlevel = set_irq_level(HIGHEST_IRQ_LEVEL);
int oldlevel = disable_irq_save();
if(register_queue)
{
@ -645,7 +645,7 @@ void queue_init(struct event_queue *q, bool register_queue)
corelock_unlock(&all_queues.cl);
}
set_irq_level(oldlevel);
restore_irq(oldlevel);
}
/* Queue must not be available for use during this call */
@ -654,7 +654,7 @@ void queue_delete(struct event_queue *q)
int oldlevel;
int i;
oldlevel = set_irq_level(HIGHEST_IRQ_LEVEL);
oldlevel = disable_irq_save();
corelock_lock(&all_queues.cl);
corelock_lock(&q->cl);
@ -697,7 +697,7 @@ void queue_delete(struct event_queue *q)
q->write = 0;
corelock_unlock(&q->cl);
set_irq_level(oldlevel);
restore_irq(oldlevel);
}
/* NOTE: multiple threads waiting on a queue head cannot have a well-
@ -714,7 +714,7 @@ void queue_wait(struct event_queue *q, struct queue_event *ev)
"queue_wait->wrong thread\n");
#endif
oldlevel = set_irq_level(HIGHEST_IRQ_LEVEL);
oldlevel = disable_irq_save();
corelock_lock(&q->cl);
/* auto-reply */
@ -734,7 +734,7 @@ void queue_wait(struct event_queue *q, struct queue_event *ev)
corelock_unlock(&q->cl);
switch_thread();
oldlevel = set_irq_level(HIGHEST_IRQ_LEVEL);
oldlevel = disable_irq_save();
corelock_lock(&q->cl);
}
/* A message that woke us could now be gone */
@ -748,7 +748,7 @@ void queue_wait(struct event_queue *q, struct queue_event *ev)
queue_do_fetch_sender(q->send, rd);
corelock_unlock(&q->cl);
set_irq_level(oldlevel);
restore_irq(oldlevel);
}
void queue_wait_w_tmo(struct event_queue *q, struct queue_event *ev, int ticks)
@ -761,7 +761,7 @@ void queue_wait_w_tmo(struct event_queue *q, struct queue_event *ev, int ticks)
"queue_wait_w_tmo->wrong thread\n");
#endif
oldlevel = set_irq_level(HIGHEST_IRQ_LEVEL);
oldlevel = disable_irq_save();
corelock_lock(&q->cl);
/* Auto-reply */
@ -779,7 +779,7 @@ void queue_wait_w_tmo(struct event_queue *q, struct queue_event *ev, int ticks)
switch_thread();
oldlevel = set_irq_level(HIGHEST_IRQ_LEVEL);
oldlevel = disable_irq_save();
corelock_lock(&q->cl);
}
@ -798,7 +798,7 @@ void queue_wait_w_tmo(struct event_queue *q, struct queue_event *ev, int ticks)
}
corelock_unlock(&q->cl);
set_irq_level(oldlevel);
restore_irq(oldlevel);
}
void queue_post(struct event_queue *q, long id, intptr_t data)
@ -806,7 +806,7 @@ void queue_post(struct event_queue *q, long id, intptr_t data)
int oldlevel;
unsigned int wr;
oldlevel = set_irq_level(HIGHEST_IRQ_LEVEL);
oldlevel = disable_irq_save();
corelock_lock(&q->cl);
wr = q->write++ & QUEUE_LENGTH_MASK;
@ -821,7 +821,7 @@ void queue_post(struct event_queue *q, long id, intptr_t data)
wakeup_thread(&q->queue);
corelock_unlock(&q->cl);
set_irq_level(oldlevel);
restore_irq(oldlevel);
}
#ifdef HAVE_EXTENDED_MESSAGING_AND_NAME
@ -832,7 +832,7 @@ intptr_t queue_send(struct event_queue *q, long id, intptr_t data)
int oldlevel;
unsigned int wr;
oldlevel = set_irq_level(HIGHEST_IRQ_LEVEL);
oldlevel = disable_irq_save();
corelock_lock(&q->cl);
wr = q->write++ & QUEUE_LENGTH_MASK;
@ -875,7 +875,7 @@ intptr_t queue_send(struct event_queue *q, long id, intptr_t data)
wakeup_thread(&q->queue);
corelock_unlock(&q->cl);
set_irq_level(oldlevel);
restore_irq(oldlevel);
return 0;
}
@ -887,7 +887,7 @@ bool queue_in_queue_send(struct event_queue *q)
bool in_send;
#if NUM_CORES > 1
int oldlevel = set_irq_level(HIGHEST_IRQ_LEVEL);
int oldlevel = disable_irq_save();
corelock_lock(&q->cl);
#endif
@ -895,7 +895,7 @@ bool queue_in_queue_send(struct event_queue *q)
#if NUM_CORES > 1
corelock_unlock(&q->cl);
set_irq_level(oldlevel);
restore_irq(oldlevel);
#endif
return in_send;
@ -907,7 +907,7 @@ void queue_reply(struct event_queue *q, intptr_t retval)
{
if(q->send && q->send->curr_sender)
{
int oldlevel = set_irq_level(HIGHEST_IRQ_LEVEL);
int oldlevel = disable_irq_save();
corelock_lock(&q->cl);
/* Double-check locking */
IF_COP( if(q->send && q->send->curr_sender) )
@ -916,7 +916,7 @@ void queue_reply(struct event_queue *q, intptr_t retval)
}
corelock_unlock(&q->cl);
set_irq_level(oldlevel);
restore_irq(oldlevel);
}
}
@ -927,7 +927,7 @@ bool queue_peek(struct event_queue *q, struct queue_event *ev)
bool have_msg = false;
int oldlevel = set_irq_level(HIGHEST_IRQ_LEVEL);
int oldlevel = disable_irq_save();
corelock_lock(&q->cl);
if(q->read != q->write)
@ -937,7 +937,7 @@ bool queue_peek(struct event_queue *q, struct queue_event *ev)
}
corelock_unlock(&q->cl);
set_irq_level(oldlevel);
restore_irq(oldlevel);
return have_msg;
}
@ -956,7 +956,7 @@ void queue_clear(struct event_queue* q)
{
int oldlevel;
oldlevel = set_irq_level(HIGHEST_IRQ_LEVEL);
oldlevel = disable_irq_save();
corelock_lock(&q->cl);
/* Release all threads waiting in the queue for a reply -
@ -967,14 +967,14 @@ void queue_clear(struct event_queue* q)
q->write = 0;
corelock_unlock(&q->cl);
set_irq_level(oldlevel);
restore_irq(oldlevel);
}
void queue_remove_from_head(struct event_queue *q, long id)
{
int oldlevel;
oldlevel = set_irq_level(HIGHEST_IRQ_LEVEL);
oldlevel = disable_irq_save();
corelock_lock(&q->cl);
while(q->read != q->write)
@ -993,7 +993,7 @@ void queue_remove_from_head(struct event_queue *q, long id)
}
corelock_unlock(&q->cl);
set_irq_level(oldlevel);
restore_irq(oldlevel);
}
/**
@ -1012,7 +1012,7 @@ int queue_broadcast(long id, intptr_t data)
int i;
#if NUM_CORES > 1
int oldlevel = set_irq_level(HIGHEST_IRQ_LEVEL);
int oldlevel = disable_irq_save();
corelock_lock(&all_queues.cl);
#endif
@ -1023,7 +1023,7 @@ int queue_broadcast(long id, intptr_t data)
#if NUM_CORES > 1
corelock_unlock(&all_queues.cl);
set_irq_level(oldlevel);
restore_irq(oldlevel);
#endif
return i;
@ -1079,7 +1079,7 @@ void mutex_lock(struct mutex *m)
IF_PRIO( current->blocker = &m->blocker; )
current->bqp = &m->queue;
set_irq_level(HIGHEST_IRQ_LEVEL);
disable_irq();
block_thread(current);
corelock_unlock(&m->cl);
@ -1118,13 +1118,13 @@ void mutex_unlock(struct mutex *m)
}
else
{
const int oldlevel = set_irq_level(HIGHEST_IRQ_LEVEL);
const int oldlevel = disable_irq_save();
/* Tranfer of owning thread is handled in the wakeup protocol
* if priorities are enabled otherwise just set it from the
* queue head. */
IFN_PRIO( MUTEX_SET_THREAD(m, m->queue); )
IF_PRIO( unsigned int result = ) wakeup_thread(&m->queue);
set_irq_level(oldlevel);
restore_irq(oldlevel);
corelock_unlock(&m->cl);
@ -1219,7 +1219,7 @@ void semaphore_wait(struct semaphore *s)
IF_COP( current->obj_cl = &s->cl; )
current->bqp = &s->queue;
set_irq_level(HIGHEST_IRQ_LEVEL);
disable_irq();
block_thread(current);
corelock_unlock(&s->cl);
@ -1239,9 +1239,9 @@ void semaphore_release(struct semaphore *s)
/* there should be threads in this queue */
KERNEL_ASSERT(s->queue != NULL, "semaphore->wakeup\n");
/* a thread was queued - wake it up */
int oldlevel = set_irq_level(HIGHEST_IRQ_LEVEL);
int oldlevel = disable_irq_save();
IF_PRIO( result = ) wakeup_thread(&s->queue);
set_irq_level(oldlevel);
restore_irq(oldlevel);
}
corelock_unlock(&s->cl);
@ -1298,7 +1298,7 @@ void event_wait(struct event *e, unsigned int for_state)
IF_COP( current->obj_cl = &e->cl; )
current->bqp = &e->queues[for_state];
set_irq_level(HIGHEST_IRQ_LEVEL);
disable_irq();
block_thread(current);
corelock_unlock(&e->cl);
@ -1323,7 +1323,7 @@ void event_set_state(struct event *e, unsigned int state)
IF_PRIO( result = THREAD_OK; )
oldlevel = set_irq_level(HIGHEST_IRQ_LEVEL);
oldlevel = disable_irq_save();
if(state == STATE_SIGNALED)
{
@ -1357,7 +1357,7 @@ void event_set_state(struct event *e, unsigned int state)
thread_queue_wake(&e->queues[STATE_NONSIGNALED]);
}
set_irq_level(oldlevel);
restore_irq(oldlevel);
corelock_unlock(&e->cl);

4
firmware/mp3_playback.c
View file

@ -134,7 +134,7 @@ static void postpone_dma_tick(void)
#if (CONFIG_CODEC == MAS3587F) || (CONFIG_CODEC == MAS3539F)
void demand_irq_enable(bool on)
{
int oldlevel = set_irq_level(HIGHEST_IRQ_LEVEL);
int oldlevel = disable_irq_save();
if(on)
{
@ -144,7 +144,7 @@ void demand_irq_enable(bool on)
else
IPRA &= 0xfff0;
set_irq_level(oldlevel);
restore_irq(oldlevel);
}
#endif /* #if (CONFIG_CODEC == MAS3587F) || (CONFIG_CODEC == MAS3539F) */

12
firmware/mpeg.c
View file

@ -1767,9 +1767,9 @@ static void mpeg_thread(void)
DEBUGF("New audiobuf_read address: %x (%x)\n",
audiobuf+audiobuf_read, audiobuf_read);
level = set_irq_level(HIGHEST_IRQ_LEVEL);
level = disable_irq_save();
num_rec_bytes = get_unsaved_space();
set_irq_level(level);
restore_irq(level);
}
else
{
@ -1860,11 +1860,11 @@ static void mpeg_thread(void)
pause_start_time = record_start_time;
/* capture all values at one point */
level = set_irq_level(HIGHEST_IRQ_LEVEL);
level = disable_irq_save();
save_endpos = audiobuf_write;
last_rec_bytes = num_rec_bytes;
num_rec_bytes = 0;
set_irq_level(level);
restore_irq(level);
if (amount_to_save >= 1800)
{
@ -1883,9 +1883,9 @@ static void mpeg_thread(void)
save_endpos -= audiobuflen;
last_rec_bytes += offset - 1800;
level = set_irq_level(HIGHEST_IRQ_LEVEL);
level = disable_irq_save();
num_rec_bytes += 1800 - offset;
set_irq_level(level);
restore_irq(level);
}
saving_status = NEW_FILE;

6
firmware/rolo.c
View file

@ -271,7 +271,11 @@ int rolo_load(const char* filename)
#endif
adc_close();
set_irq_level(HIGHEST_IRQ_LEVEL);
#ifdef CPU_ARM
disable_fiq();
#endif
set_irq_level(DISABLE_INTERRUPTS);
#elif CONFIG_CPU == SH7034
/* Read file length from header and compare to real file length */
lseek(fd, FIRMWARE_OFFSET_FILE_LENGTH, SEEK_SET);

12
firmware/target/arm/i2c-pp.c
View file

@ -60,7 +60,7 @@ static int pp_i2c_read_byte(unsigned int addr, unsigned int *data)
{
unsigned int byte;
int old_irq_level = set_irq_level(HIGHEST_IRQ_LEVEL);
int old_irq_level = disable_irq_save();
/* clear top 15 bits, left shift 1, or in 0x1 for a read */
I2C_ADDR = ((addr << 17) >> 16) | 0x1 ;
@ -69,19 +69,19 @@ static int pp_i2c_read_byte(unsigned int addr, unsigned int *data)
I2C_CTRL |= I2C_SEND;
set_irq_level(old_irq_level);
restore_irq(old_irq_level);
if (pp_i2c_wait_not_busy() < 0)
{
return -1;
}
old_irq_level = set_irq_level(HIGHEST_IRQ_LEVEL);
old_irq_level = disable_irq_save();
byte = I2C_DATA(0);
if (data)
*data = byte;
set_irq_level(old_irq_level);
restore_irq(old_irq_level);
}
return 0;
@ -102,7 +102,7 @@ static int pp_i2c_send_bytes(unsigned int addr, unsigned int len, unsigned char
}
{
int old_irq_level = set_irq_level(HIGHEST_IRQ_LEVEL);
int old_irq_level = disable_irq_save();
/* clear top 15 bits, left shift 1 */
I2C_ADDR = (addr << 17) >> 16;
@ -118,7 +118,7 @@ static int pp_i2c_send_bytes(unsigned int addr, unsigned int len, unsigned char
I2C_CTRL |= I2C_SEND;
set_irq_level(old_irq_level);
restore_irq(old_irq_level);
}
return 0x0;

8
firmware/target/arm/ipod/backlight-nano_video.c
View file

@ -43,11 +43,11 @@ void _backlight_set_brightness(int val)
{
do
{
oldlevel = set_irq_level(HIGHEST_IRQ_LEVEL);
oldlevel = disable_irq_save();
GPIO_CLEAR_BITWISE(GPIOD_OUTPUT_VAL, 0x80);
udelay(10);
GPIO_SET_BITWISE(GPIOD_OUTPUT_VAL, 0x80);
set_irq_level(oldlevel);
restore_irq(oldlevel);
udelay(10);
}
while (++current_dim < val);
@ -56,11 +56,11 @@ void _backlight_set_brightness(int val)
{
do
{
oldlevel = set_irq_level(HIGHEST_IRQ_LEVEL);
oldlevel = disable_irq_save();
GPIO_CLEAR_BITWISE(GPIOD_OUTPUT_VAL, 0x80);
udelay(200);
GPIO_SET_BITWISE(GPIOD_OUTPUT_VAL, 0x80);
set_irq_level(oldlevel);
restore_irq(oldlevel);
udelay(10);
}
while (--current_dim > val);

10
firmware/target/arm/ipod/video/lcd-video.c
View file

@ -110,7 +110,7 @@ static void bcm_setup_rect(unsigned x, unsigned y,
#ifndef BOOTLOADER
static void lcd_tick(void)
{
/* No set_irq_level - already in interrupt context */
/* No core level interrupt mask - already in interrupt context */
#if NUM_CORES > 1
corelock_lock(&lcd_state.cl);
#endif
@ -143,7 +143,7 @@ static void lcd_tick(void)
static inline void lcd_block_tick(void)
{
int oldlevel = set_irq_level(HIGHEST_IRQ_LEVEL);
int oldlevel = disable_irq_save();
#if NUM_CORES > 1
corelock_lock(&lcd_state.cl);
@ -152,14 +152,14 @@ static inline void lcd_block_tick(void)
#else
lcd_state.blocked = true;
#endif
set_irq_level(oldlevel);
restore_irq(oldlevel);
}
static void lcd_unblock_and_update(void)
{
unsigned data;
bool bcm_is_busy;
int oldlevel = set_irq_level(HIGHEST_IRQ_LEVEL);
int oldlevel = disable_irq_save();
#if NUM_CORES > 1
corelock_lock(&lcd_state.cl);
@ -184,7 +184,7 @@ static void lcd_unblock_and_update(void)
#if NUM_CORES > 1
corelock_unlock(&lcd_state.cl);
#endif
set_irq_level(oldlevel);
restore_irq(oldlevel);
}
#else /* BOOTLOADER */

16
firmware/target/arm/pcm-pp.c
View file

@ -223,24 +223,24 @@ void fiq_playback(void)
will require other measures */
void pcm_play_lock(void)
{
int status = set_fiq_status(FIQ_DISABLED);
int status = disable_fiq_save();
if (++dma_play_data.locked == 1) {
IIS_IRQTX_REG &= ~IIS_IRQTX;
}
set_fiq_status(status);
restore_fiq(status);
}
void pcm_play_unlock(void)
{
int status = set_fiq_status(FIQ_DISABLED);
int status = disable_fiq_save();
if (--dma_play_data.locked == 0 && dma_play_data.state != 0) {
IIS_IRQTX_REG |= IIS_IRQTX;
}
set_fiq_status(status);
restore_fiq(status);
}
static void play_start_pcm(void)
@ -373,22 +373,22 @@ static struct dma_data dma_rec_data NOCACHEBSS_ATTR =
will require other measures */
void pcm_rec_lock(void)
{
int status = set_fiq_status(FIQ_DISABLED);
int status = disable_fiq_save();
if (++dma_rec_data.locked == 1)
IIS_IRQRX_REG &= ~IIS_IRQRX;
set_fiq_status(status);
restore_fiq(status);
}
void pcm_rec_unlock(void)
{
int status = set_fiq_status(FIQ_DISABLED);
int status = disable_fiq_save();
if (--dma_rec_data.locked == 0 && dma_rec_data.state != 0)
IIS_IRQRX_REG |= IIS_IRQRX;
set_fiq_status(status);
restore_fiq(status);
}
/* NOTE: direct stack use forbidden by GCC stack handling bug for FIQ */

5
firmware/target/arm/pnx0101/iriver-ifp7xx/power-ifp7xx.c
View file

@ -55,11 +55,10 @@ bool ide_powered(void)
void power_off(void)
{
set_irq_level(HIGHEST_IRQ_LEVEL);
disable_interrupt(IRQ_FIQ_STATUS);
GPIO1_CLR = 1 << 16;
GPIO2_SET = 1;
while(1)
yield();
while(1);
}
#else

4
firmware/target/arm/pnx0101/system-pnx0101.c
View file

@ -113,7 +113,7 @@ static inline void *noncached(void *p)
static void do_set_mem_timings(void) ICODE_ATTR;
static void do_set_mem_timings(void)
{
int old_irq = set_irq_level(HIGHEST_IRQ_LEVEL);
int old_irq = disable_irq_save();
while ((EMC.status & 3) != 0);
EMC.control = 5;
EMCSTATIC0.waitrd = 6;
@ -130,7 +130,7 @@ static void do_set_mem_timings(void)
EMCSTATIC1.config = 0x80081;
#endif
EMC.control = 1;
set_irq_level(old_irq);
restore_irq(old_irq);
}
static void emc_set_mem_timings(void)

12
firmware/target/arm/s3c2440/gigabeat-fx/pcm-meg-fx.c
View file

@ -66,27 +66,27 @@ static void _pcm_apply_settings(void)
void pcm_apply_settings(void)
{
int oldstatus = set_fiq_status(FIQ_DISABLED);
int status = disable_fiq_save();
_pcm_apply_settings();
set_fiq_status(oldstatus);
restore_fiq(status);
}
/* For the locks, DMA interrupt must be disabled because the handler
manipulates INTMSK and the operation is not atomic */
void pcm_play_lock(void)
{
int status = set_fiq_status(FIQ_DISABLED);
int status = disable_fiq_save();
if (++dma_play_lock.locked == 1)
INTMSK |= (1<<19); /* Mask the DMA interrupt */
set_fiq_status(status);
restore_fiq(status);
}
void pcm_play_unlock(void)
{
int status = set_fiq_status(FIQ_DISABLED);
int status = disable_fiq_save();
if (--dma_play_lock.locked == 0)
INTMSK &= ~dma_play_lock.state; /* Unmask the DMA interrupt if enabled */
set_fiq_status(status);
restore_fiq(status);
}
void pcm_play_dma_init(void)

4
firmware/target/arm/s3c2440/gigabeat-fx/timer-meg-fx.c
View file

@ -66,7 +66,7 @@ bool __timer_set(long cycles, bool start)
pfn_unregister = NULL;
}
oldlevel = set_irq_level(HIGHEST_IRQ_LEVEL);
oldlevel = disable_irq_save();
TCMPB0 = 0;
TCNTB0 = (unsigned int)cycles / prescaler;
@ -77,7 +77,7 @@ bool __timer_set(long cycles, bool start)
TCFG0 = (TCFG0 & ~0xff) | (prescaler - 1);
TCFG1 = (TCFG1 & ~0xf) | divider;
set_irq_level(oldlevel);
restore_irq(oldlevel);
retval = true;
}

97
firmware/target/arm/system-arm.h
View file

@ -74,27 +74,7 @@ static inline uint32_t swap_odd_even32(uint32_t value)
return value;
}
static inline void enable_fiq(void)
{
/* Clear FIQ disable bit */
asm volatile (
"mrs r0, cpsr \n"\
"bic r0, r0, #0x40 \n"\
"msr cpsr_c, r0 "
: : : "r0"
);
}
static inline void disable_fiq(void)
{
/* Set FIQ disable bit */
asm volatile (
"mrs r0, cpsr \n"\
"orr r0, r0, #0x40 \n"\
"msr cpsr_c, r0 "
: : : "r0"
);
}
/* Core-level interrupt masking */
/* This one returns the old status */
#define IRQ_ENABLED 0x00
@ -108,8 +88,10 @@ static inline void disable_fiq(void)
#define IRQ_FIQ_STATUS 0xc0
#define HIGHEST_IRQ_LEVEL IRQ_DISABLED
#define set_irq_level(status) set_interrupt_status((status), IRQ_STATUS)
#define set_fiq_status(status) set_interrupt_status((status), FIQ_STATUS)
#define set_irq_level(status) \
set_interrupt_status((status), IRQ_STATUS)
#define set_fiq_status(status) \
set_interrupt_status((status), FIQ_STATUS)
static inline int set_interrupt_status(int status, int mask)
{
@ -122,10 +104,75 @@ static inline int set_interrupt_status(int status, int mask)
"orr %0, %0, %2 \n"
"msr cpsr_c, %0 \n"
: "=&r,r"(cpsr), "=&r,r"(oldstatus)
: "r,i"(status & mask), [mask]"i,i"(mask)
);
: "r,i"(status & mask), [mask]"i,i"(mask));
return oldstatus;
}
static inline void enable_interrupt(int mask)
{
/* Clear I and/or F disable bit */
int tmp;
asm volatile (
"mrs %0, cpsr \n"
"bic %0, %0, %1 \n"
"msr cpsr_c, %0 \n"
: "=&r"(tmp) : "i"(mask));
}
static inline void disable_interrupt(int mask)
{
/* Set I and/or F disable bit */
int tmp;
asm volatile (
"mrs %0, cpsr \n"
"orr %0, %0, %1 \n"
"msr cpsr_c, %0 \n"
: "=&r"(tmp) : "i"(mask));
}
#define disable_irq(void) \
disable_interrupt(IRQ_STATUS)
#define enable_irq(void) \
enable_interrupt(IRQ_STATUS)
#define disable_fiq(void) \
disable_interrupt(FIQ_STATUS)
#define enable_fiq(void) \
enable_interrupt(FIQ_STATUS)
static inline int disable_interrupt_save(int mask)
{
/* Set I and/or F disable bit and return old cpsr value */
int cpsr, tmp;
asm volatile (
"mrs %1, cpsr \n"
"orr %0, %1, %2 \n"
"msr cpsr_c, %0 \n"
: "=&r"(tmp), "=&r"(cpsr)
: "i"(mask));
return cpsr;
}
#define disable_irq_save() \
disable_interrupt_save(IRQ_STATUS)
#define disable_fiq_save() \
disable_interrupt_save(FIQ_STATUS)
static inline void restore_interrupt(int cpsr)
{
/* Set cpsr_c from value returned by disable_interrupt_save
* or set_interrupt_status */
asm volatile ("msr cpsr_c, %0" : : "r"(cpsr));
}
#define restore_irq(cpsr) \
restore_interrupt(cpsr)
#define restore_fiq(cpsr) \
restore_interrupt(cpsr)
#endif /* SYSTEM_ARM_H */

8
firmware/target/arm/tatung/tpj1022/backlight-tpj1022.c
View file

@ -28,17 +28,17 @@
void _backlight_on(void)
{
#if 0
int level = set_irq_level(HIGHEST_IRQ_LEVEL);
int level = disable_irq_save();
pcf50606_write(0x38, 0xb0); /* Backlight ON, GPO1INV=1, GPO1ACT=011 */
set_irq_level(level);
restore_irq(level);
#endif
}
void _backlight_off(void)
{
#if 0
int level = set_irq_level(HIGHEST_IRQ_LEVEL);
int level = disable_irq_save();
pcf50606_write(0x38, 0x80); /* Backlight OFF, GPO1INV=1, GPO1ACT=000 */
set_irq_level(level);
restore_irq(level);
#endif
}

4
firmware/target/arm/tms320dm320/dsp-dm320.c
View file

@ -85,7 +85,7 @@ void dsp_wake(void)
{
/* If this is called concurrently, we may overlap setting and resetting the
bit, which causes lost interrupts to the DSP. */
int old_level = set_irq_level(IRQ_DISABLED);
int old_level = disable_irq_save();
/* The first time you INT0 the DSP, the ROM loader will branch to your RST
handler. Subsequent times, your INT0 handler will get executed. */
@ -93,7 +93,7 @@ void dsp_wake(void)
nop; nop;
IO_DSPC_HPIB_CONTROL |= 1 << 7;
set_irq_level(old_level);
restore_irq(old_level);
}
static void dsp_load(const struct dsp_section *im)

4
firmware/target/arm/tms320dm320/timer-dm320.c
View file

@ -48,7 +48,7 @@ bool __timer_set(long cycles, bool start)
pfn_unregister = NULL;
}
oldlevel = set_irq_level(HIGHEST_IRQ_LEVEL);
oldlevel = disable_irq_save();
/* Increase prescale values starting from 0 to make the cycle count fit */
while(divider>65535 && prescaler<1024)
@ -60,7 +60,7 @@ bool __timer_set(long cycles, bool start)
IO_TIMER0_TMPRSCL = prescaler;
IO_TIMER0_TMDIV = divider;
set_irq_level(oldlevel);
restore_irq(oldlevel);
return true;
}

4
firmware/target/coldfire/iaudio/adc-iaudio.c
View file

@ -44,7 +44,7 @@ unsigned short adc_scan(int channel)
int level;
int data;
level = set_irq_level(HIGHEST_IRQ_LEVEL);
level = disable_irq_save();
pcf50606_write(0x2f, adcc2_parms[channel]);
data = pcf50606_read(0x30);
@ -52,7 +52,7 @@ unsigned short adc_scan(int channel)
if (channel == ADC_BATTERY)
data = get_10bit_voltage(data);
set_irq_level(level);
restore_irq(level);
return (unsigned short)data;
}

2
firmware/target/coldfire/iaudio/m3/audio-m3.c
View file

@ -33,7 +33,7 @@ void audio_set_output_source(int source)
txsrc = (4 << 8); /* recording, iis1RcvData */
IIS1CONFIG = (IIS1CONFIG & ~(7 << 8)) | txsrc;
set_irq_level(level);
restore_irq(level);
} /* audio_set_output_source */
void audio_input_mux(int source, unsigned flags)

2
firmware/target/coldfire/iaudio/m5/audio-m5.c
View file

@ -32,7 +32,7 @@ void audio_set_output_source(int source)
txsrc = (4 << 8); /* recording, iis1RcvData */
IIS1CONFIG = (IIS1CONFIG & ~(7 << 8)) | txsrc;
set_irq_level(level);
restore_irq(level);
} /* audio_set_output_source */
void audio_input_mux(int source, unsigned flags)

8
firmware/target/coldfire/iaudio/m5/backlight-m5.c
View file

@ -33,18 +33,18 @@ bool _backlight_init(void)
void _backlight_on(void)
{
int level = set_irq_level(HIGHEST_IRQ_LEVEL);
int level = disable_irq_save();
pcf50606_write(0x39, 0x07);
set_irq_level(level);
restore_irq(level);
}
void _backlight_off(void)
{
int level = set_irq_level(HIGHEST_IRQ_LEVEL);
int level = disable_irq_save();
pcf50606_write(0x39, 0x00);
set_irq_level(level);
restore_irq(level);
}
void _remote_backlight_on(void)

8
firmware/target/coldfire/iaudio/m5/power-m5.c
View file

@ -44,16 +44,16 @@ bool charger_inserted(void)
void ide_power_enable(bool on)
{
/* GPOOD3 */
int level = set_irq_level(HIGHEST_IRQ_LEVEL);
int level = disable_irq_save();
pcf50606_write(0x3c, on ? 0x07 : 0x00);
set_irq_level(level);
restore_irq(level);
}
bool ide_powered(void)
{
int level = set_irq_level(HIGHEST_IRQ_LEVEL);
int level = disable_irq_save();
int value = pcf50606_read(0x3c);
set_irq_level(level);
restore_irq(level);
return (value & 0x07) != 0;
}

4
firmware/target/coldfire/iaudio/pcf50606-iaudio.c
View file

@ -94,9 +94,9 @@ void pcf50606_init(void)
void pcf50606_reset_timeout(void)
{
int level = set_irq_level(HIGHEST_IRQ_LEVEL);
int level = disable_irq_save();
pcf50606_write(0x08, pcf50606_read(0x08) | 0x02); /* OOCC1 - TOTRST=1 */
set_irq_level(level);
restore_irq(level);
}
/* Handles interrupts generated by the pcf50606 */

2
firmware/target/coldfire/iaudio/x5/audio-x5.c
View file

@ -32,7 +32,7 @@ void audio_set_output_source(int source)
txsrc = (4 << 8); /* recording, iis1RcvData */
IIS1CONFIG = (IIS1CONFIG & ~(7 << 8)) | txsrc;
set_irq_level(level);
restore_irq(level);
} /* audio_set_output_source */
void audio_input_mux(int source, unsigned flags)

12
firmware/target/coldfire/iaudio/x5/backlight-x5.c
View file

@ -39,16 +39,16 @@ void _backlight_on(void)
#ifndef BOOTLOADER
_lcd_sleep_timer = 0; /* LCD should be awake already */
#endif
level = set_irq_level(HIGHEST_IRQ_LEVEL);
level = disable_irq_save();
pcf50606_write(0x38, 0xb0); /* Backlight ON, GPO1INV=1, GPO1ACT=011 */
set_irq_level(level);
restore_irq(level);
}
void _backlight_off(void)
{
int level = set_irq_level(HIGHEST_IRQ_LEVEL);
int level = disable_irq_save();
pcf50606_write(0x38, 0x80); /* Backlight OFF, GPO1INV=1, GPO1ACT=000 */
set_irq_level(level);
restore_irq(level);
lcd_enable(false);
#ifndef BOOTLOADER
/* Start LCD sleep countdown */
@ -66,10 +66,10 @@ void _backlight_off(void)
void _backlight_set_brightness(int val)
{
/* disable IRQs while bitbanging */
int old_irq_level = set_irq_level(HIGHEST_IRQ_LEVEL);
int old_irq_level = disable_irq_save();
pcf50606_write(0x35, (val << 1) | 0x01); /* 512Hz, Enable PWM */
/* enable IRQs again */
set_irq_level(old_irq_level);
restore_irq(old_irq_level);
}
void _remote_backlight_on(void)

4
firmware/target/coldfire/iaudio/x5/ds2411-x5.c
View file

@ -134,7 +134,7 @@ static unsigned char ds2411_read_byte(void)
*/
int ds2411_read_id(struct ds2411_id *id)
{
int level = set_irq_level(DISABLE_INTERRUPTS); /* Timing sensitive */
int level = disable_irq_save(); /* Timing sensitive */
int i;
unsigned char crc;
@ -208,7 +208,7 @@ int ds2411_read_id(struct ds2411_id *id)
i = DS2411_NO_PRESENCE;
}
set_irq_level(level);
restore_irq(level);
return i;
} /* ds2411_read_id */

8
firmware/target/coldfire/iaudio/x5/power-x5.c
View file

@ -44,16 +44,16 @@ bool charger_inserted(void)
void ide_power_enable(bool on)
{
/* GPOOD3 */
int level = set_irq_level(HIGHEST_IRQ_LEVEL);
int level = disable_irq_save();
pcf50606_write(0x3c, on ? 0x07 : 0x00);
set_irq_level(level);
restore_irq(level);
}
bool ide_powered(void)
{
int level = set_irq_level(HIGHEST_IRQ_LEVEL);
int level = disable_irq_save();
int value = pcf50606_read(0x3c);
set_irq_level(level);
restore_irq(level);
return (value & 0x07) != 0;
}

2
firmware/target/coldfire/iriver/audio-iriver.c
View file

@ -41,7 +41,7 @@ void audio_set_output_source(int source)
IIS2CONFIG = (IIS2CONFIG & ~(7 << 8)) | (txsrc_select[source+1] << 8);
set_irq_level(level);
restore_irq(level);
} /* audio_set_output_source */
void audio_input_mux(int source, unsigned flags)

4
firmware/target/coldfire/iriver/h100/adc-h100.c
View file

@ -47,7 +47,7 @@
unsigned short adc_scan(int channel)
{
int level = set_irq_level(HIGHEST_IRQ_LEVEL);
int level = disable_irq_save();
unsigned char data = 0;
int i;
@ -97,7 +97,7 @@ unsigned short adc_scan(int channel)
CS_HI;
set_irq_level(level);
restore_irq(level);
return data;
}

3
firmware/target/coldfire/iriver/h100/power-h100.c
View file

@ -115,8 +115,7 @@ void power_off(void)
set_irq_level(DISABLE_INTERRUPTS);
and_l(~0x00080000, &GPIO1_OUT);
asm("halt");
while(1)
yield();
while(1);
}
#endif /* SIMULATOR */

2
firmware/target/coldfire/iriver/h100/spdif-h100.c
View file

@ -99,7 +99,7 @@ void spdif_set_output_source(int source, bool src_on)
PDOR3 = 0; /* A write to the FIFO kick-starts playback */
}
set_irq_level(level);
restore_irq(level);
} /* spdif_set_output_source */
/* Return the last set S/PDIF audio source */

4
firmware/target/coldfire/iriver/h300/adc-h300.c
View file

@ -34,7 +34,7 @@ static int adcc2_parms[] =
unsigned short adc_scan(int channel)
{
int level = set_irq_level(HIGHEST_IRQ_LEVEL);
int level = disable_irq_save();
unsigned data;
pcf50606_write(0x2f, adcc2_parms[channel]);
@ -43,6 +43,6 @@ unsigned short adc_scan(int channel)
if (channel == ADC_BATTERY)
data = (data << 2) | (pcf50606_read(0x31) & 0x03);
set_irq_level(level);
restore_irq(level);
return data;
}

4
firmware/target/coldfire/iriver/h300/backlight-h300.c
View file

@ -51,10 +51,10 @@ void _backlight_off(void)
void _backlight_set_brightness(int val)
{
/* disable IRQs while bitbanging */
int old_irq_level = set_irq_level(HIGHEST_IRQ_LEVEL);
int old_irq_level = disable_irq_save();
pcf50606_write(0x35, (val << 1) | 0x01); /* 512Hz, Enable PWM */
/* enable IRQs again */
set_irq_level(old_irq_level);
restore_irq(old_irq_level);
}
void _remote_backlight_on(void)

3
firmware/target/coldfire/iriver/h300/power-h300.c
View file

@ -86,8 +86,7 @@ void power_off(void)
set_irq_level(DISABLE_INTERRUPTS);
and_l(~0x00080000, &GPIO1_OUT);
asm("halt");
while(1)
yield();
while(1);
}
#endif /* SIMULATOR */

4
firmware/target/coldfire/iriver/lcd-remote-iriver.c
View file

@ -478,9 +478,9 @@ static void remote_tick(void)
if (!(countdown % 8))
{
/* Determine which type of remote it is */
level = set_irq_level(HIGHEST_IRQ_LEVEL);
level = disable_irq_save();
val = adc_scan(ADC_REMOTEDETECT);
set_irq_level(level);
restore_irq(level);
if (val < ADCVAL_H100_LCD_REMOTE_HOLD)
{

4
firmware/target/coldfire/pcm-coldfire.c
View file

@ -158,7 +158,7 @@ void _pcm_apply_settings_irq_lock(bool clear_reset)
{
int level = set_irq_level(DMA_IRQ_LEVEL);
_pcm_apply_settings(clear_reset);
set_irq_level(level);
restore_irq(level);
}
/* This clears the reset bit to enable monitoring immediately if monitoring
@ -175,7 +175,7 @@ void pcm_apply_settings(void)
if (_pcm_apply_settings(!pbm || kick) && kick)
PDOR3 = 0; /* Kick FIFO out of reset by writing to it */
set_irq_level(level);
restore_irq(level);
} /* pcm_apply_settings */
void pcm_play_dma_init(void)

2
firmware/target/coldfire/system-coldfire.c
View file

@ -351,5 +351,5 @@ void coldfire_set_dataincontrol(unsigned long value)
/* Have to be atomic against recording stop initiated by DMA1 */
int level = set_irq_level(DMA_IRQ_LEVEL);
DATAINCONTROL = (DATAINCONTROL & (1 << 9)) | value;
set_irq_level(level);
restore_irq(level);
}

49
firmware/target/coldfire/system-target.h
View file

@ -81,13 +81,54 @@ static inline int set_irq_level(int level)
{
int oldlevel;
/* Read the old level and set the new one */
asm volatile ("move.w %%sr, %0 \n"
"bset.l #13, %1 \n" /* Keep supervisor state set */
"move.w %1, %%sr \n"
: "=d"(oldlevel), "+d"(level));
/* Not volatile - can be removed if oldlevel isn't used */
asm ("move.w %%sr, %0" : "=d"(oldlevel));
/* Keep supervisor state set */
asm volatile ("move.w %0, %%sr \n" : : "d"(level | 0x2000));
return oldlevel;
}
/* Enable all interrupts */
static inline void enable_irq(void)
{
int tmp;
/* Using move.w over the compiler's move.l saves 2 bytes per instance */
asm volatile ("move.w %1, %0 \n"
"move.w %0, %%sr \n"
: "=&d"(tmp) : "i"(0x2000));
}
/* Disable interrupts up to HIGHEST_IRQ_LEVEL */
static inline void disable_irq(void)
{
int tmp;
/* Using move.w over the compiler's move.l saves 2 bytes per instance */
asm volatile ("move.w %1, %0 \n"
"move.w %0, %%sr \n"
: "=&d"(tmp)
: "i"(0x2000 | HIGHEST_IRQ_LEVEL));
}
static inline int disable_irq_save(void)
{
int oldlevel, tmp;
/* Using move.w over the compiler's move.l saves 2 bytes per instance */
asm volatile ("move.w %%sr, %1 \n"
"move.w %2, %0 \n"
"move.w %0, %%sr \n"
: "=&d"(tmp), "=d"(oldlevel)
: "i"(0x2000 | HIGHEST_IRQ_LEVEL));
return oldlevel;
}
static inline void restore_irq(int oldlevel)
{
/* Restore the sr value returned by disable_irq_save or
* set_irq_level */
asm volatile ("move.w %0, %%sr" : : "d"(oldlevel));
}
static inline uint16_t swap16(uint16_t value)
/*
result[15..8] = value[ 7..0];

5
firmware/target/sh/archos/fm_v2/power-fm_v2.c
View file

@ -101,9 +101,8 @@ bool ide_powered(void)
void power_off(void)
{
set_irq_level(HIGHEST_IRQ_LEVEL);
disable_irq();
and_b(~0x20, &PBDRL);
or_b(0x20, &PBIORL);
while(1)
yield();
while(1);
}

5
firmware/target/sh/archos/ondio/power-ondio.c
View file

@ -66,13 +66,12 @@ void power_init(void)
void power_off(void)
{
set_irq_level(HIGHEST_IRQ_LEVEL);
disable_irq();
#ifdef HAVE_BACKLIGHT
/* Switch off the light on backlight-modded Ondios */
_backlight_off();
#endif
and_b(~0x20, &PBDRL);
or_b(0x20, &PBIORL);
while(1)
yield();
while(1);
}

5
firmware/target/sh/archos/player/power-player.c
View file

@ -79,9 +79,8 @@ bool ide_powered(void)
void power_off(void)
{
set_irq_level(HIGHEST_IRQ_LEVEL);
disable_irq();
and_b(~0x08, &PADRH);
or_b(0x08, &PAIORH);
while(1)
yield();
while(1);
}

5
firmware/target/sh/archos/recorder/power-recorder.c
View file

@ -95,9 +95,8 @@ bool ide_powered(void)
void power_off(void)
{
set_irq_level(HIGHEST_IRQ_LEVEL);
disable_irq();
and_b(~0x10, &PBDRL);
or_b(0x10, &PBIORL);
while(1)
yield();
while(1);
}

2
firmware/target/sh/system-sh.c
View file

@ -360,7 +360,7 @@ void system_init(void)
void system_reboot (void)
{
set_irq_level(HIGHEST_IRQ_LEVEL);
disable_irq();
asm volatile ("ldc\t%0,vbr" : : "r"(0));

20
firmware/target/sh/system-target.h
View file

@ -52,11 +52,29 @@ static inline int set_irq_level(int level)
{
int i;
/* Read the old level and set the new one */
asm volatile ("stc sr, %0" : "=r" (i));
/* Not volatile - will be optimized away if the return value isn't used */
asm ("stc sr, %0" : "=r" (i));
asm volatile ("ldc %0, sr" : : "r" (level));
return i;
}
static inline void enable_irq(void)
{
int i;
asm volatile ("mov %1, %0 \n" /* Save a constant load from RAM */
"ldc %0, sr \n" : "=&r"(i) : "i"(0));
}
#define disable_irq() \
((void)set_irq_level(HIGHEST_IRQ_LEVEL))
#define disable_irq_save() \
set_irq_level(HIGHEST_IRQ_LEVEL)
#define restore_irq(i) \
((void)set_irq_level(i))
static inline uint16_t swap16(uint16_t value)
/*
result[15..8] = value[ 7..0];

2
firmware/test/i2c/main.c
View file

@ -542,7 +542,7 @@ int main(void)
set_irq_level(0);
enable_irq();

2
firmware/test/kernel/main.c
View file

@ -59,7 +59,7 @@ int main(void)
kernel_init();
set_irq_level(0);
enable_irq();
tick_add_task(testfunc);

82
firmware/thread.c
View file

@ -399,7 +399,7 @@ static inline void core_sleep(void)
{
PROC_CTL(CURRENT_CORE) = PROC_SLEEP;
nop; nop; nop;
set_irq_level(IRQ_ENABLED);
enable_irq();
}
#else
static inline void core_sleep(unsigned int core)
@ -421,9 +421,6 @@ static inline void core_sleep(unsigned int core)
"ldr r1, [%[mbx], #0] \n"
"tst r1, r0, lsr #2 \n"
"bne 1b \n"
"mrs r1, cpsr \n" /* Enable IRQ */
"bic r1, r1, #0x80 \n"
"msr cpsr_c, r1 \n"
:
: [ctl]"r"(&PROC_CTL(CPU)), [mbx]"r"(MBX_BASE), [c]"r"(core)
: "r0", "r1");
@ -443,10 +440,8 @@ static inline void core_sleep(unsigned int core)
/* Wait for other processor to finish wake procedure */
while (MBX_MSG_STAT & (0x1 << core));
/* Enable IRQ */
set_irq_level(IRQ_ENABLED);
#endif /* ASM/C selection */
enable_irq();
}
#endif /* NUM_CORES */
#elif CONFIG_CPU == PP5002
@ -465,13 +460,11 @@ static inline void core_sleep(void)
"nop \n" /* nop's needed because of pipeline */
"nop \n"
"nop \n"
"mrs r0, cpsr \n" /* Enable IRQ */
"bic r0, r0, #0x80 \n"
"msr cpsr_c, r0 \n"
:
: [ctl]"r"(&PROC_CTL(CURRENT_CORE))
: "r0"
);
enable_irq();
}
#else
/* PP5002 has no mailboxes - emulate using bytes */
@ -503,9 +496,6 @@ static inline void core_sleep(unsigned int core)
"ldrb r0, [%[sem], #0] \n"
"cmp r0, #0 \n"
"bne 1b \n"
"mrs r0, cpsr \n" /* Enable IRQ */
"bic r0, r0, #0x80 \n"
"msr cpsr_c, r0 \n"
:
: [sem]"r"(&core_semaphores[core]), [c]"r"(core),
[ctl]"r"(&PROC_CTL(CPU))
@ -530,8 +520,8 @@ static inline void core_sleep(unsigned int core)
while (core_semaphores[core].intend_wake != 0);
/* Enable IRQ */
set_irq_level(IRQ_ENABLED);
#endif /* ASM/C selection */
enable_irq();
}
#endif /* NUM_CORES */
#endif /* PP CPU type */
@ -578,7 +568,7 @@ void core_wake(unsigned int othercore)
: "r1", "r2", "r3");
#else /* C version for reference */
/* Disable interrupts - avoid reentrancy from the tick */
int oldlevel = set_irq_level(HIGHEST_IRQ_LEVEL);
int oldlevel = disable_irq_save();
/* Signal intent to wake other processor - set stay awake */
MBX_MSG_SET = 0x11 << othercore;
@ -593,7 +583,7 @@ void core_wake(unsigned int othercore)
/* Done with wake procedure */
MBX_MSG_CLR = 0x1 << othercore;
set_irq_level(oldlevel);
restore_irq(oldlevel);
#endif /* ASM/C selection */
}
#elif CONFIG_CPU == PP5002
@ -631,7 +621,7 @@ void core_wake(unsigned int othercore)
);
#else /* C version for reference */
/* Disable interrupts - avoid reentrancy from the tick */
int oldlevel = set_irq_level(HIGHEST_IRQ_LEVEL);
int oldlevel = disable_irq_save();
/* Signal intent to wake other processor - set stay awake */
core_semaphores[othercore].intend_wake = 1;
@ -647,7 +637,7 @@ void core_wake(unsigned int othercore)
/* Done with wake procedure */
core_semaphores[othercore].intend_wake = 0;
set_irq_level(oldlevel);
restore_irq(oldlevel);
#endif /* ASM/C selection */
}
#endif /* CPU type */
@ -775,7 +765,7 @@ static inline void core_sleep(void)
static inline void core_sleep(void)
{
#warning TODO: Implement core_sleep
set_irq_level(IRQ_ENABLED);
enable_irq();
}
#elif defined(CPU_TCC780X)
static inline void core_sleep(void)
@ -784,11 +774,9 @@ static inline void core_sleep(void)
asm volatile (
"mov r0, #0 \n"
"mcr p15, 0, r0, c7, c0, 4 \n" /* Wait for interrupt */
"mrs r0, cpsr \n" /* Unmask IRQ at core level */
"bic r0, r0, #0x80 \n"
"msr cpsr_c, r0 \n"
: : : "r0"
);
enable_irq();
}
#elif CONFIG_CPU == IMX31L
static inline void core_sleep(void)
@ -796,17 +784,15 @@ static inline void core_sleep(void)
asm volatile (
"mov r0, #0 \n"
"mcr p15, 0, r0, c7, c0, 4 \n" /* Wait for interrupt */
"mrs r0, cpsr \n" /* Unmask IRQ at core level */
"bic r0, r0, #0x80 \n"
"msr cpsr_c, r0 \n"
: : : "r0"
);
enable_irq();
}
#else
static inline void core_sleep(void)
{
#warning core_sleep not implemented, battery life will be decreased
set_irq_level(0);
enable_irq();
}
#endif /* CONFIG_CPU == */
@ -1706,14 +1692,14 @@ void check_tmo_threads(void)
while (next != NULL)
{
/* Check sleeping threads. Allow interrupts between checks. */
set_irq_level(0);
enable_irq();
struct thread_entry *curr = next;
next = curr->tmo.next;
/* Lock thread slot against explicit wakeup */
set_irq_level(HIGHEST_IRQ_LEVEL);
disable_irq();
LOCK_THREAD(curr);
unsigned state = curr->state;
@ -1956,7 +1942,7 @@ void switch_thread(void)
check_tmo_threads();
}
set_irq_level(HIGHEST_IRQ_LEVEL);
disable_irq();
RTR_LOCK(core);
thread = cores[core].running;
@ -2018,7 +2004,7 @@ void switch_thread(void)
#endif /* HAVE_PRIORITY_SCHEDULING */
RTR_UNLOCK(core);
set_irq_level(0);
enable_irq();
break;
}
}
@ -2212,7 +2198,7 @@ unsigned int thread_queue_wake(struct thread_entry **list)
static struct thread_entry * find_empty_thread_slot(void)
{
/* Any slot could be on an interrupt-accessible list */
IF_COP( int oldlevel = set_irq_level(HIGHEST_IRQ_LEVEL); )
IF_COP( int oldlevel = disable_irq_save(); )
struct thread_entry *thread = NULL;
int n;
@ -2233,7 +2219,7 @@ static struct thread_entry * find_empty_thread_slot(void)
UNLOCK_THREAD(t);
}
IF_COP( set_irq_level(oldlevel); ) /* Reenable interrups - this slot is
IF_COP( restore_irq(oldlevel); ) /* Reenable interrups - this slot is
not accesible to them yet */
return thread;
}
@ -2247,7 +2233,7 @@ static struct thread_entry * find_empty_thread_slot(void)
void core_idle(void)
{
IF_COP( const unsigned int core = CURRENT_CORE; )
set_irq_level(HIGHEST_IRQ_LEVEL);
disable_irq();
core_sleep(IF_COP(core));
}
@ -2277,7 +2263,7 @@ struct thread_entry*
return NULL;
}
oldlevel = set_irq_level(HIGHEST_IRQ_LEVEL);
oldlevel = disable_irq_save();
/* Munge the stack to make it easy to spot stack overflows */
stackptr = ALIGN_UP((uintptr_t)stack, sizeof (uintptr_t));
@ -2338,7 +2324,7 @@ struct thread_entry*
UNLOCK_THREAD(thread);
set_irq_level(oldlevel);
restore_irq(oldlevel);
return thread;
}
@ -2394,7 +2380,7 @@ void thread_wait(struct thread_entry *thread)
IF_COP( current->obj_cl = &thread->waiter_cl; )
current->bqp = &thread->queue;
set_irq_level(HIGHEST_IRQ_LEVEL);
disable_irq();
block_thread(current);
corelock_unlock(&thread->waiter_cl);
@ -2418,7 +2404,7 @@ void thread_exit(void)
/* Cancel CPU boost if any */
cancel_cpu_boost();
set_irq_level(HIGHEST_IRQ_LEVEL);
disable_irq();
corelock_lock(&current->waiter_cl);
LOCK_THREAD(current);
@ -2503,7 +2489,7 @@ void remove_thread(struct thread_entry *thread)
if (thread == current)
thread_exit(); /* Current thread - do normal exit */
oldlevel = set_irq_level(HIGHEST_IRQ_LEVEL);
oldlevel = disable_irq_save();
corelock_lock(&thread->waiter_cl);
LOCK_THREAD(thread);
@ -2521,7 +2507,7 @@ void remove_thread(struct thread_entry *thread)
/* Thread being killed - become a waiter */
UNLOCK_THREAD(thread);
corelock_unlock(&thread->waiter_cl);
set_irq_level(oldlevel);
restore_irq(oldlevel);
thread_wait(thread);
return;
}
@ -2543,11 +2529,11 @@ void remove_thread(struct thread_entry *thread)
corelock_unlock(&thread->waiter_cl);
UNLOCK_THREAD(thread);
set_irq_level(oldlevel);
restore_irq(oldlevel);
old_core = switch_core(new_core);
oldlevel = set_irq_level(HIGHEST_IRQ_LEVEL);
oldlevel = disable_irq_save();
corelock_lock(&thread->waiter_cl);
LOCK_THREAD(thread);
@ -2643,7 +2629,7 @@ thread_killed: /* Thread was already killed */
/* Removal complete - safe to unlock and reenable interrupts */
corelock_unlock(&thread->waiter_cl);
UNLOCK_THREAD(thread);
set_irq_level(oldlevel);
restore_irq(oldlevel);
#if NUM_CORES > 1
if (old_core < NUM_CORES)
@ -2675,7 +2661,7 @@ int thread_set_priority(struct thread_entry *thread, int priority)
/* Thread could be on any list and therefore on an interrupt accessible
one - disable interrupts */
int oldlevel = set_irq_level(HIGHEST_IRQ_LEVEL);
int oldlevel = disable_irq_save();
LOCK_THREAD(thread);
@ -2788,7 +2774,7 @@ int thread_set_priority(struct thread_entry *thread, int priority)
UNLOCK_THREAD(thread);
set_irq_level(oldlevel);
restore_irq(oldlevel);
return old_base_priority;
}
@ -2815,14 +2801,14 @@ int thread_get_priority(struct thread_entry *thread)
*/
void thread_thaw(struct thread_entry *thread)
{
int oldlevel = set_irq_level(HIGHEST_IRQ_LEVEL);
int oldlevel = disable_irq_save();
LOCK_THREAD(thread);
if (thread->state == STATE_FROZEN)
core_schedule_wakeup(thread);
UNLOCK_THREAD(thread);
set_irq_level(oldlevel);
restore_irq(oldlevel);
}
/*---------------------------------------------------------------------------
@ -2850,14 +2836,14 @@ unsigned int switch_core(unsigned int new_core)
return core;
}
int oldlevel = set_irq_level(HIGHEST_IRQ_LEVEL);
int oldlevel = disable_irq_save();
LOCK_THREAD(current);
if (current->name == THREAD_DESTRUCT)
{
/* Thread being killed - deactivate and let process complete */
UNLOCK_THREAD(current);
set_irq_level(oldlevel);
restore_irq(oldlevel);
thread_wait(current);
/* Should never be reached */
THREAD_PANICF("switch_core->D:*R", current);

4
firmware/usb.c
View file

@ -568,10 +568,10 @@ bool usb_charging_enable(bool on)
#ifdef IRIVER_H300_SERIES
int irqlevel;
logf("usb_charging_enable(%s)\n", on ? "on" : "off" );
irqlevel = set_irq_level(HIGHEST_IRQ_LEVEL);
irqlevel = disable_irq_save();
pcf50606_set_usb_charging(on);
rc = on;
(void)set_irq_level(irqlevel);
restore_irq(irqlevel);
#else
/* TODO: implement it for other targets... */
(void)on;

2
flash/bootbox/main.c
View file

@ -156,7 +156,7 @@ void main(void)
buffer_init();
lcd_init();
show_logo();
set_irq_level(0);
enable_irq();
adc_init();
usb_init();
button_init();

13
uisimulator/sdl/system-sdl.h
View file

@ -24,6 +24,19 @@
#define HIGHEST_IRQ_LEVEL 1
int set_irq_level(int level);
#define disable_irq() \
((void)set_irq_level(HIGHEST_IRQ_LEVEL))
#define enable_irq() \
((void)set_irq_level(0))
#define disable_irq_save() \
set_irq_level(HIGHEST_IRQ_LEVEL)
#define restore_irq(level) \
((void)set_irq_level(level))
void sim_enter_irq_handler(void);
void sim_exit_irq_handler(void);
bool sim_kernel_init(void);

16
uisimulator/sdl/thread-sdl.c
View file

@ -246,7 +246,7 @@ void switch_thread(void)
{
struct thread_entry *current = cores[CURRENT_CORE].running;
set_irq_level(0);
enable_irq();
switch (current->state)
{
@ -266,9 +266,9 @@ void switch_thread(void)
SDL_SemWait(current->context.s);
SDL_LockMutex(m);
oldlevel = set_irq_level(HIGHEST_IRQ_LEVEL);
oldlevel = disable_irq_save();
current->state = STATE_RUNNING;
set_irq_level(oldlevel);
restore_irq(oldlevel);
break;
} /* STATE_BLOCKED: */
@ -280,7 +280,7 @@ void switch_thread(void)
result = SDL_SemWaitTimeout(current->context.s, current->tmo_tick);
SDL_LockMutex(m);
oldlevel = set_irq_level(HIGHEST_IRQ_LEVEL);
oldlevel = disable_irq_save();
if (current->state == STATE_BLOCKED_W_TMO)
{
@ -303,7 +303,7 @@ void switch_thread(void)
SDL_SemTryWait(current->context.s);
}
set_irq_level(oldlevel);
restore_irq(oldlevel);
break;
} /* STATE_BLOCKED_W_TMO: */
@ -505,7 +505,7 @@ void remove_thread(struct thread_entry *thread)
SDL_Thread *t;
SDL_sem *s;
int oldlevel = set_irq_level(HIGHEST_IRQ_LEVEL);
int oldlevel = disable_irq_save();
if (thread == NULL)
{
@ -547,12 +547,12 @@ void remove_thread(struct thread_entry *thread)
{
/* Do a graceful exit - perform the longjmp back into the thread
function to return */
set_irq_level(oldlevel);
restore_irq(oldlevel);
longjmp(thread_jmpbufs[current - threads], 1);
}
SDL_KillThread(t);
set_irq_level(oldlevel);
restore_irq(oldlevel);
}
void thread_exit(void)