int HardwareSerial::available(void)
{
int result = static_cast<int>(uart_rx_available(_uart));
if (!result) {
optimistic_yield(10000);
}
return result;
}
int available() {
auto cb = _available;
if (cb == 0) {
cb = _readAll();
} else {
optimistic_yield(100);
}
return cb;
}
//------------------------------------------------------------------------------
// wait for card to go not busy
uint8_t Sd2Card::waitNotBusy(uint16_t timeoutMillis) {
uint16_t t0 = millis();
do {
#ifdef ESP8266
optimistic_yield(10000);
#endif
if (spiRec() == 0XFF) return true;
}
while (((uint16_t)millis() - t0) < timeoutMillis);
return false;
}
int TwoWire::available(void){
int result = rxBufferLength - rxBufferIndex;
if (!result) {
// yielding here will not make more data "available",
// but it will prevent the system from going into WDT reset
optimistic_yield(1000);
}
return result;
}
int WiFiClient::available()
{
if (!_client)
return false;
int result = _client->getSize();
if (!result) {
optimistic_yield(100);
}
return result;
}
int WiFiUDP::parsePacket()
{
if (!_ctx)
return 0;
if (!_ctx->next()) {
optimistic_yield(100);
return 0;
}
return _ctx->getSize();
}
int ICACHE_FLASH_ATTR wire_available(void)
{
int result = wire_rxBufferLength - wire_rxBufferIndex;
if (!result) {
// yielding here will not make more data "available",
// but it will prevent the system from going into WDT reset
optimistic_yield(1000);
}
return result;
}
/* return number of bytes available in the current packet,
will return zero if parsePacket hasn't been called yet */
int WiFiUDP::available() {
int result = 0;
if (_ctx) {
result = static_cast<int>(_ctx->getSize());
}
if (!result) {
// yielding here will not make more data "available",
// but it will prevent the system from going into WDT reset
optimistic_yield(1000);
}
return result;
}
extern "C" int ax_port_read(int fd, uint8_t* buffer, size_t count) {
ClientContext* _client = reinterpret_cast<ClientContext*>(fd);
if (_client->state() != ESTABLISHED && !_client->getSize()) {
return -1;
errno = EIO;
}
size_t cb = _client->read((char*) buffer, count);
if (cb != count) {
errno = EAGAIN;
}
if (cb == 0) {
optimistic_yield(100);
return -1;
}
return cb;
}
/* serial1 can not rx data, just tx for debug */
irom int serial_available()
{
uart_t *_uart = uart0;
if(!_uart || !uart_rx_enabled(_uart)) {
return 0;
}
int result = uart_rx_available(_uart);
if (_peek_char != -1) {
result += 1;
}
if (!result) {
optimistic_yield(10000);
}
return result;
}
int32_t spiffs_hal_erase(uint32_t addr, uint32_t size) {
if ((size & (SPI_FLASH_SEC_SIZE - 1)) != 0 ||
(addr & (SPI_FLASH_SEC_SIZE - 1)) != 0) {
DEBUGV("_spif_erase called with addr=%x, size=%d\r\n", addr, size);
abort();
}
const uint32_t sector = addr / SPI_FLASH_SEC_SIZE;
const uint32_t sectorCount = size / SPI_FLASH_SEC_SIZE;
for (uint32_t i = 0; i < sectorCount; ++i) {
optimistic_yield(10000);
if (!ESP.flashEraseSector(sector + i)) {
DEBUGV("_spif_erase addr=%x size=%d i=%d\r\n", addr, size, i);
return SPIFFS_ERR_INTERNAL;
}
}
return SPIFFS_OK;
}
extern "C" int __ax_port_read(int fd, uint8_t* buffer, size_t count)
{
ClientContext* _client = SSLContext::getIOContext(fd);
if (!_client || (_client->state() != ESTABLISHED && !_client->getSize())) {
errno = EIO;
return -1;
}
size_t cb = _client->read((char*) buffer, count);
if (cb != count) {
errno = EAGAIN;
}
if (cb == 0) {
optimistic_yield(100);
return -1;
}
return cb;
}
int32_t spiffs_hal_read(uint32_t addr, uint32_t size, uint8_t *dst) {
optimistic_yield(10000);
uint32_t result = SPIFFS_OK;
uint32_t alignedBegin = (addr + 3) & (~3);
uint32_t alignedEnd = (addr + size) & (~3);
if (alignedEnd < alignedBegin) {
alignedEnd = alignedBegin;
}
if (addr < alignedBegin) {
uint32_t nb = alignedBegin - addr;
uint32_t tmp;
if (!ESP.flashRead(alignedBegin - 4, &tmp, 4)) {
DEBUGV("_spif_read(%d) addr=%x size=%x ab=%x ae=%x\r\n",
__LINE__, addr, size, alignedBegin, alignedEnd);
return SPIFFS_ERR_INTERNAL;
}
memcpy(dst, &tmp + 4 - nb, nb);
}
if (alignedEnd != alignedBegin) {
if (!ESP.flashRead(alignedBegin, (uint32_t*) (dst + alignedBegin - addr),
alignedEnd - alignedBegin)) {
DEBUGV("_spif_read(%d) addr=%x size=%x ab=%x ae=%x\r\n",
__LINE__, addr, size, alignedBegin, alignedEnd);
return SPIFFS_ERR_INTERNAL;
}
}
if (addr + size > alignedEnd) {
uint32_t nb = addr + size - alignedEnd;
uint32_t tmp;
if (!ESP.flashRead(alignedEnd, &tmp, 4)) {
DEBUGV("_spif_read(%d) addr=%x size=%x ab=%x ae=%x\r\n",
__LINE__, addr, size, alignedBegin, alignedEnd);
return SPIFFS_ERR_INTERNAL;
}
memcpy(dst + size - nb, &tmp, nb);
}
return result;
}
int _readAll() {
if (!_ssl)
return 0;
optimistic_yield(100);
uint8_t* data;
int rc = ssl_read(_ssl, &data);
if (rc <= 0) {
if (rc < SSL_OK && rc != SSL_CLOSE_NOTIFY && rc != SSL_ERROR_CONN_LOST) {
ssl_free(_ssl);
_ssl = nullptr;
}
return 0;
}
DEBUGV(":wcs ra %d", rc);
_read_ptr = data;
_available = rc;
return _available;
}
/** Wait for start block token */
uint8_t Sd2Card::waitStartBlock(void) {
uint16_t t0 = millis();
while ((status_ = spiRec()) == 0XFF) {
#ifdef ESP8266
optimistic_yield(10000);
#endif
if (((uint16_t)millis() - t0) > SD_READ_TIMEOUT) {
error(SD_CARD_ERROR_READ_TIMEOUT);
goto fail;
}
}
if (status_ != DATA_START_BLOCK) {
error(SD_CARD_ERROR_READ);
goto fail;
}
return true;
fail:
chipSelectHigh();
return false;
}
//------------------------------------------------------------------------------
// send command and return error code. Return zero for OK
uint8_t Sd2Card::cardCommand(uint8_t cmd, uint32_t arg) {
// end read if in partialBlockRead mode
readEnd();
// select card
chipSelectLow();
// wait up to 300 ms if busy
waitNotBusy(300);
// send command
spiSend(cmd | 0x40);
#ifdef ESP8266
// send argument
SPI.write32(arg, true);
#else
// send argument
for (int8_t s = 24; s >= 0; s -= 8) spiSend(arg >> s);
#endif
// send CRC
uint8_t crc = 0xFF;
if (cmd == CMD0) crc = 0x95; // correct crc for CMD0 with arg 0
if (cmd == CMD8) crc = 0x87; // correct crc for CMD8 with arg 0X1AA
spiSend(crc);
// wait for response
for (uint8_t i = 0; ((status_ = spiRec()) & 0x80) && i != 0xFF; i++)
;
#ifdef ESP8266
optimistic_yield(10000);
#endif
return status_;
}
extern "C" void __ax_wdt_feed()
{
optimistic_yield(10000);
}
int32_t spiffs_hal_write(uint32_t addr, uint32_t size, uint8_t *src) {
optimistic_yield(10000);
uint32_t alignedBegin = (addr + 3) & (~3);
uint32_t alignedEnd = (addr + size) & (~3);
if (alignedEnd < alignedBegin) {
alignedEnd = alignedBegin;
}
if (addr < alignedBegin) {
uint32_t ofs = alignedBegin - addr;
uint32_t nb = (size < ofs) ? size : ofs;
uint8_t tmp[4] __attribute__((aligned(4))) = {0xff, 0xff, 0xff, 0xff};
memcpy(tmp + 4 - ofs, src, nb);
if (!ESP.flashWrite(alignedBegin - 4, (uint32_t*) tmp, 4)) {
DEBUGV("_spif_write(%d) addr=%x size=%x ab=%x ae=%x\r\n",
__LINE__, addr, size, alignedBegin, alignedEnd);
return SPIFFS_ERR_INTERNAL;
}
}
if (alignedEnd != alignedBegin) {
uint32_t* srcLeftover = (uint32_t*) (src + alignedBegin - addr);
uint32_t srcAlign = ((uint32_t) srcLeftover) & 3;
if (!srcAlign) {
if (!ESP.flashWrite(alignedBegin, (uint32_t*) srcLeftover,
alignedEnd - alignedBegin)) {
DEBUGV("_spif_write(%d) addr=%x size=%x ab=%x ae=%x\r\n",
__LINE__, addr, size, alignedBegin, alignedEnd);
return SPIFFS_ERR_INTERNAL;
}
}
else {
uint8_t buf[UNALIGNED_WRITE_BUFFER_SIZE];
for (uint32_t sizeLeft = alignedEnd - alignedBegin; sizeLeft; ) {
size_t willCopy = std::min(sizeLeft, sizeof(buf));
memcpy(buf, srcLeftover, willCopy);
if (!ESP.flashWrite(alignedBegin, (uint32_t*) buf, willCopy)) {
DEBUGV("_spif_write(%d) addr=%x size=%x ab=%x ae=%x\r\n",
__LINE__, addr, size, alignedBegin, alignedEnd);
return SPIFFS_ERR_INTERNAL;
}
sizeLeft -= willCopy;
srcLeftover += willCopy;
alignedBegin += willCopy;
}
}
}
if (addr + size > alignedEnd) {
uint32_t nb = addr + size - alignedEnd;
uint32_t tmp = 0xffffffff;
memcpy(&tmp, src + size - nb, nb);
if (!ESP.flashWrite(alignedEnd, &tmp, 4)) {
DEBUGV("_spif_write(%d) addr=%x size=%x ab=%x ae=%x\r\n",
__LINE__, addr, size, alignedBegin, alignedEnd);
return SPIFFS_ERR_INTERNAL;
}
}
return SPIFFS_OK;
}
