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AP_IOMCU: valid_GPIO_pin checks if pin configured for GPIO

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This commit is contained in:
Randy Mackay 2022-04-21 10:14:10 +09:00 committed by Andrew Tridgell
parent 892cea622f
commit 79e73e1683
2 changed files with 9 additions and 3 deletions
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10
libraries/AP_IOMCU/AP_IOMCU.cpp
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@ -1064,10 +1064,16 @@ void AP_IOMCU::check_iomcu_reset(void)
last_rc_protocols = 0; last_rc_protocols = 0;
} }
// Check if pin number is valid for GPIO // Check if pin number is valid and configured for GPIO
bool AP_IOMCU::valid_GPIO_pin(uint8_t pin) const bool AP_IOMCU::valid_GPIO_pin(uint8_t pin) const
{ {
return convert_pin_number(pin); // sanity check pin number
if (!convert_pin_number(pin)) {
return false;
}
// check pin is enabled as GPIO
return ((GPIO.channel_mask & (1U << pin)) != 0);
} }
// convert external pin numbers 101 to 108 to internal 0 to 7 // convert external pin numbers 101 to 108 to internal 0 to 7

2
libraries/AP_IOMCU/AP_IOMCU.h
View File

@ -107,7 +107,7 @@ public:
bool setup_mixing(RCMapper *rcmap, int8_t override_chan, bool setup_mixing(RCMapper *rcmap, int8_t override_chan,
float mixing_gain, uint16_t manual_rc_mask); float mixing_gain, uint16_t manual_rc_mask);
// Check if pin number is valid for GPIO // Check if pin number is valid and configured for GPIO
bool valid_GPIO_pin(uint8_t pin) const; bool valid_GPIO_pin(uint8_t pin) const;
// convert external pin numbers 101 to 108 to internal 0 to 7 // convert external pin numbers 101 to 108 to internal 0 to 7