346 lines
8.9 KiB
C++
346 lines
8.9 KiB
C++
|
/* mbed USBHost Library
|
||
|
|
* Copyright (c) 2006-2013 ARM Limited
|
||
|
|
*
|
||
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
||
|
|
* you may not use this file except in compliance with the License.
|
||
|
|
* You may obtain a copy of the License at
|
||
|
|
*
|
||
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
||
|
|
*
|
||
|
|
* Unless required by applicable law or agreed to in writing, software
|
||
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
||
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||
|
|
* See the License for the specific language governing permissions and
|
||
|
|
* limitations under the License.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include "USBHostSerial.h"
|
||
|
|
|
||
|
|
#if USBHOST_SERIAL
|
||
|
|
|
||
|
|
#include "dbg.h"
|
||
|
|
|
||
|
|
#define CHECK_INTERFACE(cls,subcls,proto) \
|
||
|
|
(((cls == 0xFF) && (subcls == 0xFF) && (proto == 0xFF)) /* QUALCOM CDC */ || \
|
||
|
|
((cls == SERIAL_CLASS) && (subcls == 0x00) && (proto == 0x00)) /* STANDARD CDC */ )
|
||
|
|
|
||
|
|
#if (USBHOST_SERIAL <= 1)
|
||
|
|
|
||
|
|
USBHostSerial::USBHostSerial()
|
||
|
|
{
|
||
|
|
host = USBHost::getHostInst();
|
||
|
|
ports_found = 0;
|
||
|
|
dev_connected = false;
|
||
|
|
}
|
||
|
|
|
||
|
|
bool USBHostSerial::connected()
|
||
|
|
{
|
||
|
|
return dev_connected;
|
||
|
|
}
|
||
|
|
|
||
|
|
void USBHostSerial::disconnect(void)
|
||
|
|
{
|
||
|
|
ports_found = 0;
|
||
|
|
dev = NULL;
|
||
|
|
}
|
||
|
|
|
||
|
|
bool USBHostSerial::connect() {
|
||
|
|
|
||
|
|
if (dev)
|
||
|
|
{
|
||
|
|
for (uint8_t i = 0; i < MAX_DEVICE_CONNECTED; i++)
|
||
|
|
{
|
||
|
|
USBDeviceConnected* d = host->getDevice(i);
|
||
|
|
if (dev == d)
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
disconnect();
|
||
|
|
}
|
||
|
|
for (uint8_t i = 0; i < MAX_DEVICE_CONNECTED; i++)
|
||
|
|
{
|
||
|
|
USBDeviceConnected* d = host->getDevice(i);
|
||
|
|
if (d != NULL) {
|
||
|
|
|
||
|
|
USB_DBG("Trying to connect serial device \r\n");
|
||
|
|
if(host->enumerate(d, this))
|
||
|
|
break;
|
||
|
|
|
||
|
|
USBEndpoint* bulk_in = d->getEndpoint(port_intf, BULK_ENDPOINT, IN);
|
||
|
|
USBEndpoint* bulk_out = d->getEndpoint(port_intf, BULK_ENDPOINT, OUT);
|
||
|
|
if (bulk_in && bulk_out)
|
||
|
|
{
|
||
|
|
USBHostSerialPort::connect(host,d,port_intf,bulk_in, bulk_out);
|
||
|
|
dev = d;
|
||
|
|
dev_connected = true;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return dev != NULL;
|
||
|
|
}
|
||
|
|
|
||
|
|
/*virtual*/ void USBHostSerial::setVidPid(uint16_t vid, uint16_t pid)
|
||
|
|
{
|
||
|
|
// we don't check VID/PID for MSD driver
|
||
|
|
}
|
||
|
|
|
||
|
|
/*virtual*/ bool USBHostSerial::parseInterface(uint8_t intf_nb, uint8_t intf_class, uint8_t intf_subclass, uint8_t intf_protocol) //Must return true if the interface should be parsed
|
||
|
|
{
|
||
|
|
if (!ports_found &&
|
||
|
|
CHECK_INTERFACE(intf_class, intf_subclass, intf_protocol)) {
|
||
|
|
port_intf = intf_nb;
|
||
|
|
ports_found = true;
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
/*virtual*/ bool USBHostSerial::useEndpoint(uint8_t intf_nb, ENDPOINT_TYPE type, ENDPOINT_DIRECTION dir) //Must return true if the endpoint will be used
|
||
|
|
{
|
||
|
|
if (ports_found && (intf_nb == port_intf)) {
|
||
|
|
if (type == BULK_ENDPOINT)
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
#else // (USBHOST_SERIAL > 1)
|
||
|
|
|
||
|
|
//------------------------------------------------------------------------------
|
||
|
|
|
||
|
|
USBHostMultiSerial::USBHostMultiSerial()
|
||
|
|
{
|
||
|
|
host = USBHost::getHostInst();
|
||
|
|
dev = NULL;
|
||
|
|
memset(ports, NULL, sizeof(ports));
|
||
|
|
ports_found = 0;
|
||
|
|
dev_connected = false;
|
||
|
|
}
|
||
|
|
|
||
|
|
USBHostMultiSerial::~USBHostMultiSerial()
|
||
|
|
{
|
||
|
|
disconnect();
|
||
|
|
}
|
||
|
|
|
||
|
|
bool USBHostMultiSerial::connected()
|
||
|
|
{
|
||
|
|
return dev_connected;
|
||
|
|
}
|
||
|
|
|
||
|
|
void USBHostMultiSerial::disconnect(void)
|
||
|
|
{
|
||
|
|
for (int port = 0; port < USBHOST_SERIAL; port ++)
|
||
|
|
{
|
||
|
|
if (ports[port])
|
||
|
|
{
|
||
|
|
delete ports[port];
|
||
|
|
ports[port] = NULL;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
ports_found = 0;
|
||
|
|
dev = NULL;
|
||
|
|
}
|
||
|
|
|
||
|
|
bool USBHostMultiSerial::connect() {
|
||
|
|
|
||
|
|
if (dev)
|
||
|
|
{
|
||
|
|
for (uint8_t i = 0; i < MAX_DEVICE_CONNECTED; i++)
|
||
|
|
{
|
||
|
|
USBDeviceConnected* d = host->getDevice(i);
|
||
|
|
if (dev == d)
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
disconnect();
|
||
|
|
}
|
||
|
|
for (uint8_t i = 0; i < MAX_DEVICE_CONNECTED; i++)
|
||
|
|
{
|
||
|
|
USBDeviceConnected* d = host->getDevice(i);
|
||
|
|
if (d != NULL) {
|
||
|
|
|
||
|
|
USB_DBG("Trying to connect serial device \r\n");
|
||
|
|
if(host->enumerate(d, this))
|
||
|
|
break;
|
||
|
|
|
||
|
|
for (int port = 0; port < ports_found; port ++)
|
||
|
|
{
|
||
|
|
USBEndpoint* bulk_in = d->getEndpoint(port_intf[port], BULK_ENDPOINT, IN);
|
||
|
|
USBEndpoint* bulk_out = d->getEndpoint(port_intf[port], BULK_ENDPOINT, OUT);
|
||
|
|
if (bulk_in && bulk_out)
|
||
|
|
{
|
||
|
|
ports[port] = new USBHostSerialPort();
|
||
|
|
if (ports[port])
|
||
|
|
{
|
||
|
|
ports[port]->connect(host,d,port_intf[port],bulk_in, bulk_out);
|
||
|
|
dev = d;
|
||
|
|
dev_connected = true;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return dev != NULL;
|
||
|
|
}
|
||
|
|
|
||
|
|
/*virtual*/ void USBHostMultiSerial::setVidPid(uint16_t vid, uint16_t pid)
|
||
|
|
{
|
||
|
|
// we don't check VID/PID for MSD driver
|
||
|
|
}
|
||
|
|
|
||
|
|
/*virtual*/ bool USBHostMultiSerial::parseInterface(uint8_t intf_nb, uint8_t intf_class, uint8_t intf_subclass, uint8_t intf_protocol) //Must return true if the interface should be parsed
|
||
|
|
{
|
||
|
|
if ((ports_found < USBHOST_SERIAL) &&
|
||
|
|
CHECK_INTERFACE(intf_class, intf_subclass, intf_protocol)) {
|
||
|
|
port_intf[ports_found++] = intf_nb;
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
/*virtual*/ bool USBHostMultiSerial::useEndpoint(uint8_t intf_nb, ENDPOINT_TYPE type, ENDPOINT_DIRECTION dir) //Must return true if the endpoint will be used
|
||
|
|
{
|
||
|
|
if ((ports_found > 0) && (intf_nb == port_intf[ports_found-1])) {
|
||
|
|
if (type == BULK_ENDPOINT)
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
#endif
|
||
|
|
|
||
|
|
//------------------------------------------------------------------------------
|
||
|
|
|
||
|
|
#define SET_LINE_CODING 0x20
|
||
|
|
|
||
|
|
USBHostSerialPort::USBHostSerialPort(): circ_buf()
|
||
|
|
{
|
||
|
|
init();
|
||
|
|
}
|
||
|
|
|
||
|
|
void USBHostSerialPort::init(void)
|
||
|
|
{
|
||
|
|
host = NULL;
|
||
|
|
dev = NULL;
|
||
|
|
serial_intf = NULL;
|
||
|
|
size_bulk_in = 0;
|
||
|
|
size_bulk_out = 0;
|
||
|
|
bulk_in = NULL;
|
||
|
|
bulk_out = NULL;
|
||
|
|
line_coding.baudrate = 9600;
|
||
|
|
line_coding.data_bits = 8;
|
||
|
|
line_coding.parity = None;
|
||
|
|
line_coding.stop_bits = 1;
|
||
|
|
circ_buf.flush();
|
||
|
|
}
|
||
|
|
|
||
|
|
void USBHostSerialPort::connect(USBHost* _host, USBDeviceConnected * _dev,
|
||
|
|
uint8_t _serial_intf, USBEndpoint* _bulk_in, USBEndpoint* _bulk_out)
|
||
|
|
{
|
||
|
|
host = _host;
|
||
|
|
dev = _dev;
|
||
|
|
serial_intf = _serial_intf;
|
||
|
|
bulk_in = _bulk_in;
|
||
|
|
bulk_out = _bulk_out;
|
||
|
|
|
||
|
|
USB_INFO("New Serial device: VID:%04x PID:%04x [dev: %p - intf: %d]", dev->getVid(), dev->getPid(), dev, serial_intf);
|
||
|
|
dev->setName("Serial", serial_intf);
|
||
|
|
host->registerDriver(dev, serial_intf, this, &USBHostSerialPort::init);
|
||
|
|
baud(9600);
|
||
|
|
size_bulk_in = bulk_in->getSize();
|
||
|
|
size_bulk_out = bulk_out->getSize();
|
||
|
|
bulk_in->attach(this, &USBHostSerialPort::rxHandler);
|
||
|
|
bulk_out->attach(this, &USBHostSerialPort::txHandler);
|
||
|
|
host->bulkRead(dev, bulk_in, buf, size_bulk_in, false);
|
||
|
|
}
|
||
|
|
|
||
|
|
void USBHostSerialPort::rxHandler() {
|
||
|
|
if (bulk_in) {
|
||
|
|
int len = bulk_in->getLengthTransferred();
|
||
|
|
if (bulk_in->getState() == USB_TYPE_IDLE) {
|
||
|
|
for (int i = 0; i < len; i++) {
|
||
|
|
circ_buf.queue(buf[i]);
|
||
|
|
}
|
||
|
|
rx.call();
|
||
|
|
host->bulkRead(dev, bulk_in, buf, size_bulk_in, false);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
void USBHostSerialPort::txHandler() {
|
||
|
|
if (bulk_out) {
|
||
|
|
if (bulk_out->getState() == USB_TYPE_IDLE) {
|
||
|
|
tx.call();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
int USBHostSerialPort::_putc(int c) {
|
||
|
|
if (bulk_out) {
|
||
|
|
if (host->bulkWrite(dev, bulk_out, (uint8_t *)&c, 1) == USB_TYPE_OK) {
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return -1;
|
||
|
|
}
|
||
|
|
|
||
|
|
void USBHostSerialPort::baud(int baudrate) {
|
||
|
|
line_coding.baudrate = baudrate;
|
||
|
|
format(line_coding.data_bits, (Parity)line_coding.parity, line_coding.stop_bits);
|
||
|
|
}
|
||
|
|
|
||
|
|
void USBHostSerialPort::format(int bits, Parity parity, int stop_bits) {
|
||
|
|
line_coding.data_bits = bits;
|
||
|
|
line_coding.parity = parity;
|
||
|
|
line_coding.stop_bits = (stop_bits == 1) ? 0 : 2;
|
||
|
|
|
||
|
|
// set line coding
|
||
|
|
host->controlWrite( dev,
|
||
|
|
USB_RECIPIENT_INTERFACE | USB_HOST_TO_DEVICE | USB_REQUEST_TYPE_CLASS,
|
||
|
|
SET_LINE_CODING,
|
||
|
|
0, serial_intf, (uint8_t *)&line_coding, 7);
|
||
|
|
}
|
||
|
|
|
||
|
|
int USBHostSerialPort::_getc() {
|
||
|
|
uint8_t c = 0;
|
||
|
|
if (bulk_in == NULL) {
|
||
|
|
init();
|
||
|
|
return -1;
|
||
|
|
}
|
||
|
|
while (circ_buf.isEmpty());
|
||
|
|
circ_buf.dequeue(&c);
|
||
|
|
return c;
|
||
|
|
}
|
||
|
|
|
||
|
|
int USBHostSerialPort::writeBuf(const char* b, int s)
|
||
|
|
{
|
||
|
|
int c = 0;
|
||
|
|
if (bulk_out)
|
||
|
|
{
|
||
|
|
while (c < s)
|
||
|
|
{
|
||
|
|
int i = (s < size_bulk_out) ? s : size_bulk_out;
|
||
|
|
if (host->bulkWrite(dev, bulk_out, (uint8_t *)(b+c), i) == USB_TYPE_OK)
|
||
|
|
c += i;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return s;
|
||
|
|
}
|
||
|
|
|
||
|
|
int USBHostSerialPort::readBuf(char* b, int s)
|
||
|
|
{
|
||
|
|
int i = 0;
|
||
|
|
if (bulk_in)
|
||
|
|
{
|
||
|
|
for (i = 0; i < s; )
|
||
|
|
b[i++] = getc();
|
||
|
|
}
|
||
|
|
return i;
|
||
|
|
}
|
||
|
|
|
||
|
|
uint8_t USBHostSerialPort::available() {
|
||
|
|
return circ_buf.available();
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
#endif
|