URL https://opencores.org/ocsvn/openrisc/openrisc/trunk

Subversion Repositories openrisc

[/] [openrisc/] [trunk/] [bootloaders/] [orpmon/] [drivers/] [tick.c] - Diff between revs 355 and 467

Rev 355	Rev 467

`#include "common.h"`	`#include "common.h"`
`#include "support.h"`	`#include "support.h"`
`#include "spr-defs.h"`	`#include "spr-defs.h"`
`#include "spincursor.h"`

`void tick_init(void)`	`void tick_init(void)`
`{`	`{`
`mtspr(SPR_SR, SPR_SR_TEE \| mfspr(SPR_SR));`	`mtspr(SPR_SR, SPR_SR_TEE \| mfspr(SPR_SR));`
`mtspr(SPR_TTMR, SPR_TTMR_IE \| SPR_TTMR_RT \| ((IN_CLK/TICKS_PER_SEC) & SPR_TTMR_PERIOD));`	`mtspr(SPR_TTMR, SPR_TTMR_IE \| SPR_TTMR_RT \| ((IN_CLK/TICKS_PER_SEC) & SPR_TTMR_PERIOD));`
`}`	`}`

`// No longer called - timpstamp variable incremented in vector code in reset.S`	`// No longer called - timpstamp variable incremented in vector code in reset.S`
`void tick_interrupt(void)`	`void tick_interrupt(void)`
`{`	`{`
`timestamp++;`	`timestamp++;`
`mtspr(SPR_TTMR, SPR_TTMR_IE \| SPR_TTMR_RT \| ((IN_CLK/TICKS_PER_SEC) & SPR_TTMR_PERIOD));`	`mtspr(SPR_TTMR, SPR_TTMR_IE \| SPR_TTMR_RT \| ((IN_CLK/TICKS_PER_SEC) & SPR_TTMR_PERIOD));`
`//spincursor(); // Check if we want to spin the cursor...`
`}`	`}`

`/*`	`/*`
`sleep for n timer-ticks`	`sleep for n timer-ticks`
`*/`	`*/`
`void sleep(unsigned long sleep_time)`	`void sleep(unsigned long sleep_time)`
`{`	`{`
`unsigned long start_time;`	`unsigned long start_time;`

`start_time = timestamp;`	`start_time = timestamp;`

`while ( (timestamp - start_time) < sleep_time)`	`while ( (timestamp - start_time) < sleep_time)`
`; /* do nothing */`	`; /* do nothing */`
`}`	`}`