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usb_cables: add function to float all USB pins

This commit is contained in:
King Kévin 2019-12-13 13:40:43 +01:00
parent 25b8a59663
commit 2e09990f2b
2 changed files with 15 additions and 6 deletions
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17
usb_cables.c
View File

@ -4509,7 +4509,15 @@ const struct usb_cable_t usb_cables[] = {
},
};
void usb_cables_pins_float(const struct usb_connector_t* connector)
void usb_cables_pins_float(void)
{
for (uint8_t pin = 0; pin < LENGTH(usb_pins); pin++) { // go through every pin
const struct usb_pin_t* usb_pin = &usb_pins[pin]; // get pin
gpio_set_mode(usb_pin->port, GPIO_MODE_INPUT, GPIO_CNF_INPUT_FLOAT, usb_pin->pin); // put pin to floating
}
}
void usb_cables_connector_float(const struct usb_connector_t* connector)
{
// input argument check
if (NULL == connector) {
@ -4529,7 +4537,7 @@ void usb_cables_connectors_float(const struct usb_connector_t** connectors, uint
}
for (uint8_t connector = 0; connector < connectors_nb; connector++) { // go through every connector
usb_cables_pins_float(connectors[connector]);
usb_cables_connector_float(connectors[connector]);
}
}
@ -4620,7 +4628,7 @@ void usb_cables_check_intra(const struct usb_connector_t* connector, bool* conne
connected[pin] = false;
}
}
usb_cables_pins_float(connector); // ensure we start in a safe state
usb_cables_pins_float(); // ensure we start in a safe state
for (uint8_t pin_from = 0; pin_from < connector->pins_nb; pin_from++) { // test from every pin
for (uint8_t pin_to = 0; pin_to < connector->pins_nb; pin_to++) { // test to every pin (except itself)
// don't check the same pins
@ -4653,7 +4661,6 @@ void usb_cables_check_intra(const struct usb_connector_t* connector, bool* conne
}
}
}
usb_cables_pins_float(connector); // go back to safe state
}
void usb_cables_check_inter(const struct usb_connector_t** connectors, uint8_t connectors_nb, bool* connected)
@ -4805,7 +4812,7 @@ bool usb_cables_check_load(const struct usb_connector_t* connector)
return false;
}
usb_cables_pins_float(connector); // ensure we start with all pins floating to not influence the check
usb_cables_pins_float(); // ensure we start with all pins floating to not influence the check
bool loaded = false; // remember if we found a load

4
usb_cables.h
View File

@ -71,10 +71,12 @@ extern const struct usb_connector_t* usb_connectors[8];
/** USB cables definitions */
extern const struct usb_cable_t usb_cables[77];
/** set every USB pin from every USB connector to input floating */
void usb_cables_pins_float(void);
/** set every pin of connector to input floating
* @param[in] connector connector on which to set the pins floating
*/
void usb_cables_pins_float(const struct usb_connector_t* connector);
void usb_cables_connector_float(const struct usb_connector_t* connector);
/** set every pin to the connectors to input floating
* @param[in] connectors list on connectors on which to set the pins floating
* @param[in] connectors_nb numbers of connectors