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| author | Jeenu Viswambharan <jeenu.viswambharan@arm.com> | 2016-08-09 15:26:55 +0100 |
|---|---|---|
| committer | Jeenu Viswambharan <jeenu.viswambharan@arm.com> | 2016-09-06 18:21:29 +0100 |
| commit | 620ee44566591a3ade345da5a3741867ae31b436 (patch) | |
| tree | 6fdbf197851ca961cd798248650d92d8f26e479c /framework | |
| parent | 9fbd13ee27da46a7159cc53d9366175e85458274 (diff) | |
Introduce a convenient sleep function
The sleep function constructs a PSCI state ID, and calls
tftf_program_timer_and_suspend to have the calling CPU suspended for the
specified duration.
Change-Id: I6822e3a051cc147093724d4b92f17516a3641484
Diffstat (limited to 'framework')
| -rw-r--r-- | framework/timer/timer_framework.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/framework/timer/timer_framework.c b/framework/timer/timer_framework.c index ad22b42..4adff6f 100644 --- a/framework/timer/timer_framework.c +++ b/framework/timer/timer_framework.c @@ -271,6 +271,25 @@ int tftf_program_timer_and_suspend(unsigned long milli_secs, return rc; } +int tftf_timer_sleep(unsigned long milli_secs) +{ + int ret, power_state; + uint32_t stateid; + + ret = tftf_psci_make_composite_state_id(MPIDR_AFFLVL0, + PSTATE_TYPE_STANDBY, &stateid); + if (ret != PSCI_E_SUCCESS) + return -1; + + power_state = tftf_make_psci_pstate(MPIDR_AFFLVL0, PSTATE_TYPE_STANDBY, + stateid); + ret = tftf_program_timer_and_suspend(milli_secs, power_state); + if (ret != 0) + return -1; + + return 0; +} + int tftf_cancel_timer(void) { unsigned int core_pos = platform_get_core_pos(read_mpidr_el1()); |