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Diffstat (limited to 'arch/blackfin/kernel/gptimers.c')
-rw-r--r--arch/blackfin/kernel/gptimers.c93
1 files changed, 41 insertions, 52 deletions
diff --git a/arch/blackfin/kernel/gptimers.c b/arch/blackfin/kernel/gptimers.c
index 8b81dc04488..06459f4bf43 100644
--- a/arch/blackfin/kernel/gptimers.c
+++ b/arch/blackfin/kernel/gptimers.c
@@ -25,49 +25,33 @@
#define BFIN_TIMER_NUM_GROUP (BFIN_TIMER_OCTET(MAX_BLACKFIN_GPTIMERS - 1) + 1)
-typedef struct {
- uint16_t config;
- uint16_t __pad;
- uint32_t counter;
- uint32_t period;
- uint32_t width;
-} GPTIMER_timer_regs;
-
-typedef struct {
- uint16_t enable;
- uint16_t __pad0;
- uint16_t disable;
- uint16_t __pad1;
- uint32_t status;
-} GPTIMER_group_regs;
-
-static volatile GPTIMER_timer_regs *const timer_regs[MAX_BLACKFIN_GPTIMERS] =
+static struct bfin_gptimer_regs * const timer_regs[MAX_BLACKFIN_GPTIMERS] =
{
- (GPTIMER_timer_regs *)TIMER0_CONFIG,
- (GPTIMER_timer_regs *)TIMER1_CONFIG,
- (GPTIMER_timer_regs *)TIMER2_CONFIG,
+ (void *)TIMER0_CONFIG,
+ (void *)TIMER1_CONFIG,
+ (void *)TIMER2_CONFIG,
#if (MAX_BLACKFIN_GPTIMERS > 3)
- (GPTIMER_timer_regs *)TIMER3_CONFIG,
- (GPTIMER_timer_regs *)TIMER4_CONFIG,
- (GPTIMER_timer_regs *)TIMER5_CONFIG,
- (GPTIMER_timer_regs *)TIMER6_CONFIG,
- (GPTIMER_timer_regs *)TIMER7_CONFIG,
+ (void *)TIMER3_CONFIG,
+ (void *)TIMER4_CONFIG,
+ (void *)TIMER5_CONFIG,
+ (void *)TIMER6_CONFIG,
+ (void *)TIMER7_CONFIG,
# if (MAX_BLACKFIN_GPTIMERS > 8)
- (GPTIMER_timer_regs *)TIMER8_CONFIG,
- (GPTIMER_timer_regs *)TIMER9_CONFIG,
- (GPTIMER_timer_regs *)TIMER10_CONFIG,
+ (void *)TIMER8_CONFIG,
+ (void *)TIMER9_CONFIG,
+ (void *)TIMER10_CONFIG,
# if (MAX_BLACKFIN_GPTIMERS > 11)
- (GPTIMER_timer_regs *)TIMER11_CONFIG,
+ (void *)TIMER11_CONFIG,
# endif
# endif
#endif
};
-static volatile GPTIMER_group_regs *const group_regs[BFIN_TIMER_NUM_GROUP] =
+static struct bfin_gptimer_group_regs * const group_regs[BFIN_TIMER_NUM_GROUP] =
{
- (GPTIMER_group_regs *)TIMER0_GROUP_REG,
+ (void *)TIMER0_GROUP_REG,
#if (MAX_BLACKFIN_GPTIMERS > 8)
- (GPTIMER_group_regs *)TIMER8_GROUP_REG,
+ (void *)TIMER8_GROUP_REG,
#endif
};
@@ -140,7 +124,7 @@ static uint32_t const timil_mask[MAX_BLACKFIN_GPTIMERS] =
void set_gptimer_pwidth(unsigned int timer_id, uint32_t value)
{
tassert(timer_id < MAX_BLACKFIN_GPTIMERS);
- timer_regs[timer_id]->width = value;
+ bfin_write(&timer_regs[timer_id]->width, value);
SSYNC();
}
EXPORT_SYMBOL(set_gptimer_pwidth);
@@ -148,14 +132,14 @@ EXPORT_SYMBOL(set_gptimer_pwidth);
uint32_t get_gptimer_pwidth(unsigned int timer_id)
{
tassert(timer_id < MAX_BLACKFIN_GPTIMERS);
- return timer_regs[timer_id]->width;
+ return bfin_read(&timer_regs[timer_id]->width);
}
EXPORT_SYMBOL(get_gptimer_pwidth);
void set_gptimer_period(unsigned int timer_id, uint32_t period)
{
tassert(timer_id < MAX_BLACKFIN_GPTIMERS);
- timer_regs[timer_id]->period = period;
+ bfin_write(&timer_regs[timer_id]->period, period);
SSYNC();
}
EXPORT_SYMBOL(set_gptimer_period);
@@ -163,71 +147,76 @@ EXPORT_SYMBOL(set_gptimer_period);
uint32_t get_gptimer_period(unsigned int timer_id)
{
tassert(timer_id < MAX_BLACKFIN_GPTIMERS);
- return timer_regs[timer_id]->period;
+ return bfin_read(&timer_regs[timer_id]->period);
}
EXPORT_SYMBOL(get_gptimer_period);
uint32_t get_gptimer_count(unsigned int timer_id)
{
tassert(timer_id < MAX_BLACKFIN_GPTIMERS);
- return timer_regs[timer_id]->counter;
+ return bfin_read(&timer_regs[timer_id]->counter);
}
EXPORT_SYMBOL(get_gptimer_count);
uint32_t get_gptimer_status(unsigned int group)
{
tassert(group < BFIN_TIMER_NUM_GROUP);
- return group_regs[group]->status;
+ return bfin_read(&group_regs[group]->status);
}
EXPORT_SYMBOL(get_gptimer_status);
void set_gptimer_status(unsigned int group, uint32_t value)
{
tassert(group < BFIN_TIMER_NUM_GROUP);
- group_regs[group]->status = value;
+ bfin_write(&group_regs[group]->status, value);
SSYNC();
}
EXPORT_SYMBOL(set_gptimer_status);
+static uint32_t read_gptimer_status(unsigned int timer_id)
+{
+ return bfin_read(&group_regs[BFIN_TIMER_OCTET(timer_id)]->status);
+}
+
int get_gptimer_intr(unsigned int timer_id)
{
tassert(timer_id < MAX_BLACKFIN_GPTIMERS);
- return !!(group_regs[BFIN_TIMER_OCTET(timer_id)]->status & timil_mask[timer_id]);
+ return !!(read_gptimer_status(timer_id) & timil_mask[timer_id]);
}
EXPORT_SYMBOL(get_gptimer_intr);
void clear_gptimer_intr(unsigned int timer_id)
{
tassert(timer_id < MAX_BLACKFIN_GPTIMERS);
- group_regs[BFIN_TIMER_OCTET(timer_id)]->status = timil_mask[timer_id];
+ bfin_write(&group_regs[BFIN_TIMER_OCTET(timer_id)]->status, timil_mask[timer_id]);
}
EXPORT_SYMBOL(clear_gptimer_intr);
int get_gptimer_over(unsigned int timer_id)
{
tassert(timer_id < MAX_BLACKFIN_GPTIMERS);
- return !!(group_regs[BFIN_TIMER_OCTET(timer_id)]->status & tovf_mask[timer_id]);
+ return !!(read_gptimer_status(timer_id) & tovf_mask[timer_id]);
}
EXPORT_SYMBOL(get_gptimer_over);
void clear_gptimer_over(unsigned int timer_id)
{
tassert(timer_id < MAX_BLACKFIN_GPTIMERS);
- group_regs[BFIN_TIMER_OCTET(timer_id)]->status = tovf_mask[timer_id];
+ bfin_write(&group_regs[BFIN_TIMER_OCTET(timer_id)]->status, tovf_mask[timer_id]);
}
EXPORT_SYMBOL(clear_gptimer_over);
int get_gptimer_run(unsigned int timer_id)
{
tassert(timer_id < MAX_BLACKFIN_GPTIMERS);
- return !!(group_regs[BFIN_TIMER_OCTET(timer_id)]->status & trun_mask[timer_id]);
+ return !!(read_gptimer_status(timer_id) & trun_mask[timer_id]);
}
EXPORT_SYMBOL(get_gptimer_run);
void set_gptimer_config(unsigned int timer_id, uint16_t config)
{
tassert(timer_id < MAX_BLACKFIN_GPTIMERS);
- timer_regs[timer_id]->config = config;
+ bfin_write(&timer_regs[timer_id]->config, config);
SSYNC();
}
EXPORT_SYMBOL(set_gptimer_config);
@@ -235,7 +224,7 @@ EXPORT_SYMBOL(set_gptimer_config);
uint16_t get_gptimer_config(unsigned int timer_id)
{
tassert(timer_id < MAX_BLACKFIN_GPTIMERS);
- return timer_regs[timer_id]->config;
+ return bfin_read(&timer_regs[timer_id]->config);
}
EXPORT_SYMBOL(get_gptimer_config);
@@ -244,7 +233,7 @@ void enable_gptimers(uint16_t mask)
int i;
tassert((mask & ~BLACKFIN_GPTIMER_IDMASK) == 0);
for (i = 0; i < BFIN_TIMER_NUM_GROUP; ++i) {
- group_regs[i]->enable = mask & 0xFF;
+ bfin_write(&group_regs[i]->enable, mask & 0xFF);
mask >>= 8;
}
SSYNC();
@@ -257,7 +246,7 @@ static void _disable_gptimers(uint16_t mask)
uint16_t m = mask;
tassert((mask & ~BLACKFIN_GPTIMER_IDMASK) == 0);
for (i = 0; i < BFIN_TIMER_NUM_GROUP; ++i) {
- group_regs[i]->disable = m & 0xFF;
+ bfin_write(&group_regs[i]->disable, m & 0xFF);
m >>= 8;
}
}
@@ -268,7 +257,7 @@ void disable_gptimers(uint16_t mask)
_disable_gptimers(mask);
for (i = 0; i < MAX_BLACKFIN_GPTIMERS; ++i)
if (mask & (1 << i))
- group_regs[BFIN_TIMER_OCTET(i)]->status = trun_mask[i];
+ bfin_write(&group_regs[BFIN_TIMER_OCTET(i)]->status, trun_mask[i]);
SSYNC();
}
EXPORT_SYMBOL(disable_gptimers);
@@ -283,7 +272,7 @@ EXPORT_SYMBOL(disable_gptimers_sync);
void set_gptimer_pulse_hi(unsigned int timer_id)
{
tassert(timer_id < MAX_BLACKFIN_GPTIMERS);
- timer_regs[timer_id]->config |= TIMER_PULSE_HI;
+ bfin_write_or(&timer_regs[timer_id]->config, TIMER_PULSE_HI);
SSYNC();
}
EXPORT_SYMBOL(set_gptimer_pulse_hi);
@@ -291,7 +280,7 @@ EXPORT_SYMBOL(set_gptimer_pulse_hi);
void clear_gptimer_pulse_hi(unsigned int timer_id)
{
tassert(timer_id < MAX_BLACKFIN_GPTIMERS);
- timer_regs[timer_id]->config &= ~TIMER_PULSE_HI;
+ bfin_write_and(&timer_regs[timer_id]->config, ~TIMER_PULSE_HI);
SSYNC();
}
EXPORT_SYMBOL(clear_gptimer_pulse_hi);
@@ -301,7 +290,7 @@ uint16_t get_enabled_gptimers(void)
int i;
uint16_t result = 0;
for (i = 0; i < BFIN_TIMER_NUM_GROUP; ++i)
- result |= (group_regs[i]->enable << (i << 3));
+ result |= (bfin_read(&group_regs[i]->enable) << (i << 3));
return result;
}
EXPORT_SYMBOL(get_enabled_gptimers);