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32 lines
1.1 KiB
32 lines
1.1 KiB
/* |
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* A simple GPIO VBUS sensing driver for B peripheral only devices |
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* with internal transceivers. |
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* Optionally D+ pullup can be controlled by a second GPIO. |
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* |
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* Copyright (c) 2008 Philipp Zabel <[email protected]> |
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* |
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* This program is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License version 2 as |
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* published by the Free Software Foundation. |
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* |
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*/ |
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/** |
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* struct gpio_vbus_mach_info - configuration for gpio_vbus |
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* @gpio_vbus: VBUS sensing GPIO |
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* @gpio_pullup: optional D+ or D- pullup GPIO (else negative/invalid) |
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* @gpio_vbus_inverted: true if gpio_vbus is active low |
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* @gpio_pullup_inverted: true if gpio_pullup is active low |
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* @wakeup: configure gpio_vbus as a wake-up source |
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* |
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* The VBUS sensing GPIO should have a pulldown, which will normally be |
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* part of a resistor ladder turning a 4.0V-5.25V level on VBUS into a |
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* value the GPIO detects as active. Some systems will use comparators. |
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*/ |
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struct gpio_vbus_mach_info { |
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int gpio_vbus; |
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int gpio_pullup; |
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bool gpio_vbus_inverted; |
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bool gpio_pullup_inverted; |
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bool wakeup; |
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};
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