glider/fw/usb_mux.c
2024-05-02 23:51:06 -04:00

63 lines
2.2 KiB
C

//
// Copyright 2024 Wenting Zhang <zephray@outlook.com>
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.
//
#include <stdint.h>
#include <stdio.h>
#include "pico/stdlib.h"
#include "hardware/i2c.h"
#include "config.h"
#include "ptn3460.h"
#include "utils.h"
#include "usb_mux.h"
#ifdef HAS_TYPEC
#define USBC_ORI_PIN 10
void usb_mux_init(int port) {
gpio_init(USBC_ORI_PIN);
gpio_set_dir(USBC_ORI_PIN, GPIO_OUT);
gpio_put(USBC_ORI_PIN, 0);
}
void usb_mux_set(int port, enum typec_mux mux_mode,
enum usb_switch usb_config, int polarity) {
printf("USB MUX set %s, %d\n",
(usb_config == USB_SWITCH_CONNECT) ? "CONNECT" :
(usb_config == USB_SWITCH_DISCONNECT) ? "DISCONNECT" : "RESTORE",
polarity);
if (usb_config == USB_SWITCH_CONNECT) {
if (polarity == 0) {
// Not flipped
printf("Setting orientation to not flipped\n");
gpio_put(USBC_ORI_PIN, 0);
ptn3460_set_aux_polarity(1);
}
else {
// Flipped
printf("Setting orientation to flipped\n");
gpio_put(USBC_ORI_PIN, 1);
ptn3460_set_aux_polarity(0);
}
}
}
#endif