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started work on PD negotiation

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This commit is contained in:
Alessandro Mauri 2026-04-22 00:39:46 +02:00
parent a38c71674b
commit 8adfe875cd
2 changed files with 976 additions and 0 deletions
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39
fw/main.c
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@ -3,6 +3,9 @@
#include <stdio.h>
#include <fsusb.h>
#define USBPD_IMPLEMENTATION
#include "usbpd.h"
#include "lib_i2c.h"
#include "display.h"
#include "filter.h"
@ -322,6 +325,39 @@ __attribute__((noreturn)) int main(void)
u8g2 = display_init();
// Init USBPD
USBPD_VCC_e vcc = eUSBPD_VCC_3V3;
USBPD_Result_e result = USBPD_Init(vcc);
if (result != eUSBPD_OK) {
printf("USBPD_Init failed: %d\n", result);
}
// USBPD_Reset();
bool has_pd = false;
u32 start = funSysTick32();
while (eUSBPD_BUSY == (result = USBPD_SinkNegotiate())) {
u32 now = funSysTick32();
if (now - start > Ticks_from_Ms(10000)) {
printf("USBPD_SinkNegotiate timed out\n");
break;
}
u8g2_ClearBuffer(u8g2);
u8g2_SetBitmapMode(u8g2, 1);
u8g2_SetFontMode(u8g2, 1);
u8g2_SetFont(u8g2, u8g2_font_5x8_tr);
u8g2_DrawStr(u8g2, 0, 18, "waiting...");
u8g2_SendBuffer(u8g2);
}
if (result != eUSBPD_OK) {
printf("USBPD_SinkNegotiate failed: %s, state: %s\n",
USBPD_ResultToStr(result),
USBPD_StateToStr(USBPD_GetState())
);
} else {
has_pd = true;
}
for (;;) {
static uint16_t tip_mv, vbus_mv, current_ma;
static int16_t temp_k;
@ -350,6 +386,9 @@ __attribute__((noreturn)) int main(void)
u8g2_DrawStr(u8g2, x_off+25, y_off+15, u8x8_u16toa(vbus_mv, 4));
u8g2_DrawStr(u8g2, x_off+51, y_off+7, "TEMP:");
u8g2_DrawStr(u8g2, x_off+75, y_off+7, u8x8_u16toa(temp_k, 2));
u8g2_DrawStr(u8g2, x_off+51, y_off+15, "PD:");
u8g2_DrawStr(u8g2, x_off+65, y_off+15, has_pd ? "YES" : "NO");
u8g2_SendBuffer(u8g2);