kopia lustrzana https://github.com/micropython/micropython
148 wiersze
4.6 KiB
C
148 wiersze
4.6 KiB
C
/*
|
|
* This file is part of the MicroPython project, http://micropython.org/
|
|
*
|
|
* The MIT License (MIT)
|
|
*
|
|
* Copyright (c) 2019 Damien P. George
|
|
* Copyright (c) 2020 Jim Mussared
|
|
*
|
|
* 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 "py/runtime.h"
|
|
#include "py/stream.h"
|
|
#include "py/mphal.h"
|
|
#include "shared/timeutils/timeutils.h"
|
|
#include "extmod/misc.h"
|
|
#include "ticks.h"
|
|
#include "tusb.h"
|
|
#include "fsl_snvs_lp.h"
|
|
#include "fsl_ocotp.h"
|
|
|
|
#include CPU_HEADER_H
|
|
|
|
STATIC uint8_t stdin_ringbuf_array[260];
|
|
ringbuf_t stdin_ringbuf = {stdin_ringbuf_array, sizeof(stdin_ringbuf_array), 0, 0};
|
|
|
|
#if MICROPY_KBD_EXCEPTION
|
|
|
|
int mp_interrupt_char = -1;
|
|
|
|
void tud_cdc_rx_wanted_cb(uint8_t itf, char wanted_char) {
|
|
(void)itf;
|
|
(void)wanted_char;
|
|
tud_cdc_read_char(); // discard interrupt char
|
|
mp_sched_keyboard_interrupt();
|
|
}
|
|
|
|
void mp_hal_set_interrupt_char(int c) {
|
|
mp_interrupt_char = c;
|
|
tud_cdc_set_wanted_char(c);
|
|
}
|
|
|
|
#endif
|
|
|
|
uintptr_t mp_hal_stdio_poll(uintptr_t poll_flags) {
|
|
uintptr_t ret = 0;
|
|
if ((poll_flags & MP_STREAM_POLL_RD) && ringbuf_peek(&stdin_ringbuf) != -1) {
|
|
ret |= MP_STREAM_POLL_RD;
|
|
}
|
|
if (tud_cdc_connected() && tud_cdc_available()) {
|
|
ret |= MP_STREAM_POLL_RD;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
int mp_hal_stdin_rx_chr(void) {
|
|
for (;;) {
|
|
// TODO
|
|
// if (USARTx->USART.INTFLAG.bit.RXC) {
|
|
// return USARTx->USART.DATA.bit.DATA;
|
|
// }
|
|
int c = ringbuf_get(&stdin_ringbuf);
|
|
if (c != -1) {
|
|
return c;
|
|
}
|
|
if (tud_cdc_connected() && tud_cdc_available()) {
|
|
uint8_t buf[1];
|
|
uint32_t count = tud_cdc_read(buf, sizeof(buf));
|
|
if (count) {
|
|
return buf[0];
|
|
}
|
|
}
|
|
MICROPY_EVENT_POLL_HOOK
|
|
}
|
|
}
|
|
|
|
void mp_hal_stdout_tx_strn(const char *str, mp_uint_t len) {
|
|
if (tud_cdc_connected()) {
|
|
for (size_t i = 0; i < len;) {
|
|
uint32_t n = len - i;
|
|
if (n > CFG_TUD_CDC_EP_BUFSIZE) {
|
|
n = CFG_TUD_CDC_EP_BUFSIZE;
|
|
}
|
|
while (n > tud_cdc_write_available()) {
|
|
__WFE();
|
|
}
|
|
uint32_t n2 = tud_cdc_write(str + i, n);
|
|
tud_cdc_write_flush();
|
|
i += n2;
|
|
}
|
|
}
|
|
mp_uos_dupterm_tx_strn(str, len);
|
|
// TODO
|
|
// while (len--) {
|
|
// while (!(USARTx->USART.INTFLAG.bit.DRE)) { }
|
|
// USARTx->USART.DATA.bit.DATA = *str++;
|
|
// }
|
|
}
|
|
|
|
uint64_t mp_hal_time_ns(void) {
|
|
snvs_lp_srtc_datetime_t t;
|
|
SNVS_LP_SRTC_GetDatetime(SNVS, &t);
|
|
uint64_t s = timeutils_seconds_since_epoch(t.year, t.month, t.day, t.hour, t.minute, t.second);
|
|
return s * 1000000000ULL;
|
|
}
|
|
|
|
/*******************************************************************************/
|
|
// MAC address
|
|
|
|
// Generate a random locally administered MAC address (LAA)
|
|
void mp_hal_generate_laa_mac(int idx, uint8_t buf[6]) {
|
|
// Take the MAC addr from the OTP's Configuration and Manufacturing Info
|
|
OCOTP_Init(OCOTP, CLOCK_GetFreq(kCLOCK_IpgClk));
|
|
buf[0] = 0x02; // Locally Administered MAC
|
|
*(uint32_t *)&buf[1] = OCOTP->CFG0 ^ (OCOTP->CFG0 >> 8);
|
|
*(uint16_t *)&buf[4] = (uint16_t)(OCOTP->CFG1 ^ (OCOTP->CFG1 >> 16));
|
|
}
|
|
|
|
// A board can override this if needed
|
|
MP_WEAK void mp_hal_get_mac(int idx, uint8_t buf[6]) {
|
|
mp_hal_generate_laa_mac(idx, buf);
|
|
}
|
|
|
|
void mp_hal_get_mac_ascii(int idx, size_t chr_off, size_t chr_len, char *dest) {
|
|
static const char hexchr[16] = "0123456789ABCDEF";
|
|
uint8_t mac[6];
|
|
mp_hal_get_mac(idx, mac);
|
|
for (; chr_len; ++chr_off, --chr_len) {
|
|
*dest++ = hexchr[mac[chr_off >> 1] >> (4 * (1 - (chr_off & 1))) & 0xf];
|
|
}
|
|
}
|