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26c5a22125
The current PWM interface allows for a pwm duty setting ranging from 0 to 100, resulting in a very coarse adjustment. To alleviate the problem, the interface now allows for a pwm duty setting in the range of 0 to 65535. BUG=chromium:615109 BRANCH=None TEST=Manual on chell. `ectool pwmsetduty 1 65535` - Verify LCD backlight goes to 100% `ectool pwmgetduty 1` - Prints 65535 `ectool pwmsetduty 1 0` - Verify LCD backlight goes to 0% `ectool pwmgetduty 1` - Prints 0 terminal pwmduty tests: >pwmduty PWM channels: 0: 100% 1: 62% 2: 100% 3: 80% > pwmduty 1 50 Setting channel 1 to 50% 1: 50% > pwmduty 1 0 Setting channel 1 to 0% 1: disabled > pwmduty 1 100 Setting channel 1 to 100% 1: 100% > pwmduty 1 raw 0 Setting channel 1 to raw 0% 1: disabled > pwmduty 1 raw 65535 Setting channel 1 to raw 65535% 1: 65535 > pwmduty PWM channels: 0: 100% 1: 100% 2: 100% 3: 80% > pwmduty 1 raw 30000 Setting channel 1 to raw 30000% 1: 30000 > pwmduty PWM channels: 0: 100% 1: 46% 2: 100% 3: 80% Change-Id: I299b77585f3988e72d9ac918bdde7dc5fa3df6de Reviewed-on: https://chromium-review.googlesource.com/374481 Commit-Ready: Shawn N <shawnn@chromium.org> Tested-by: Sam Hurst <shurst@google.com> Reviewed-by: Shawn N <shawnn@chromium.org>