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Common pin_is_protected function

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Scott Lahteine 2016-10-05 01:50:36 -05:00
parent 49d77720d5
commit 0c0deb5194
1 changed files with 34 additions and 39 deletions
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35
Marlin/Marlin_main.cpp
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@ -414,8 +414,6 @@ const char axis_codes[NUM_AXIS] = {'X', 'Y', 'Z', 'E'};
static int serial_count = 0;
const int sensitive_pins[] = SENSITIVE_PINS; ///< Sensitive pin list for M42
// Inactivity shutdown
millis_t previous_cmd_ms = 0;
static millis_t max_inactive_time = 0;
@ -4609,6 +4607,16 @@ inline void gcode_M31() {
#endif // SDSUPPORT
/**
* Sensitive pin test for M42, M226
*/
static bool pin_is_protected(uint8_t pin) {
static const int sensitive_pins[] = SENSITIVE_PINS;
for (uint8_t i = 0; i < COUNT(sensitive_pins); i++)
if (sensitive_pins[i] == pin) return true;
return false;
}
/**
* M42: Change pin status via GCode
*
@ -4624,8 +4632,7 @@ inline void gcode_M42() {
int pin_number = code_seen('P') ? code_value_int() : LED_PIN;
if (pin_number < 0) return;
for (uint8_t i = 0; i < COUNT(sensitive_pins); i++)
if (pin_number == sensitive_pins[i]) {
if (pin_is_protected(pin_number)) {
SERIAL_ERROR_START;
SERIAL_ERRORLNPGM(MSG_ERR_PROTECTED_PIN);
return;
@ -6050,34 +6057,23 @@ inline void gcode_M221() {
*/
inline void gcode_M226() {
if (code_seen('P')) {
int pin_number = code_value_int();
int pin_state = code_seen('S') ? code_value_int() : -1; // required pin state - default is inverted
int pin_number = code_value_int(),
pin_state = code_seen('S') ? code_value_int() : -1; // required pin state - default is inverted
if (pin_state >= -1 && pin_state <= 1) {
if (pin_state >= -1 && pin_state <= 1 && pin_number > -1 && !pin_is_protected(pin_number)) {
for (uint8_t i = 0; i < COUNT(sensitive_pins); i++) {
if (sensitive_pins[i] == pin_number) {
pin_number = -1;
break;
}
}
if (pin_number > -1) {
int target = LOW;
stepper.synchronize();
pinMode(pin_number, INPUT);
switch (pin_state) {
case 1:
target = HIGH;
break;
case 0:
target = LOW;
break;
case -1:
target = !digitalRead(pin_number);
break;
@ -6085,8 +6081,7 @@ inline void gcode_M226() {
while (digitalRead(pin_number) != target) idle();
} // pin_number > -1
} // pin_state -1 0 1
} // pin_state -1 0 1 && pin_number > -1
} // code_seen('P')
}