diff options
Diffstat (limited to 'chip/mec1322/pwm.c')
| -rw-r--r-- | chip/mec1322/pwm.c | 20 |
1 files changed, 18 insertions, 2 deletions
diff --git a/chip/mec1322/pwm.c b/chip/mec1322/pwm.c index 1643664855..0c3f97baa3 100644 --- a/chip/mec1322/pwm.c +++ b/chip/mec1322/pwm.c @@ -11,14 +11,25 @@ #include "registers.h" #include "util.h" +/* + * PWMs that must remain active in low-power idle - MEC1322_PCR_EC_SLP_EN + * bit mask. + */ +static uint32_t pwm_keep_awake_mask; + void pwm_enable(enum pwm_channel ch, int enabled) { int id = pwm_channels[ch].channel; - if (enabled) + if (enabled) { MEC1322_PWM_CFG(id) |= 0x1; - else + if (pwm_channels[ch].flags & PWM_CONFIG_DSLEEP) + pwm_keep_awake_mask |= + MEC1322_PCR_EC_SLP_EN_PWM(id); + } else { MEC1322_PWM_CFG(id) &= ~0x1; + pwm_keep_awake_mask &= ~MEC1322_PCR_EC_SLP_EN_PWM(id); + } } int pwm_get_enabled(enum pwm_channel ch) @@ -44,6 +55,11 @@ int pwm_get_duty(enum pwm_channel ch) return MEC1322_PWM_ON(pwm_channels[ch].channel); } +inline uint32_t pwm_get_keep_awake_mask(void) +{ + return pwm_keep_awake_mask; +} + static void pwm_configure(int ch, int active_low, int clock_low) { /* |