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lib: sbi: Simplify timer platform operations

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Instead of having timer_value(), timer_event_start(), and
timer_event_stop() callbacks in platform operations, it will
be much simpler for timer driver to directly register these
operations as device to the sbi_timer implementation.

Signed-off-by: Anup Patel <anup.patel@wdc.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
This commit is contained in:
Anup Patel
2021-04-21 22:04:17 +05:30
committed by Anup Patel
parent 068ca086af
commit 559a8f1d3b
19 changed files with 92 additions and 191 deletions
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21
include/sbi/sbi_timer.h
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@@ -12,6 +12,21 @@
#include <sbi/sbi_types.h>
/** Timer hardware device */
struct sbi_timer_device {
/** Name of the timer operations */
char name[32];
/** Get free-running timer value */
u64 (*timer_value)(void);
/** Start timer event for current HART */
void (*timer_event_start)(u64 next_event);
/** Stop timer event for current HART */
void (*timer_event_stop)(void);
};
struct sbi_scratch;
/** Get timer value for current HART */
@@ -35,6 +50,12 @@ void sbi_timer_event_start(u64 next_event);
/** Process timer event for current HART */
void sbi_timer_process(void);
/** Get current timer device */
const struct sbi_timer_device *sbi_timer_get_device(void);
/** Register timer device */
void sbi_timer_set_device(const struct sbi_timer_device *dev);
/* Initialize timer */
int sbi_timer_init(struct sbi_scratch *scratch, bool cold_boot);