diff options
Diffstat (limited to 'nuttx/drivers/usbdev/pl2303.c')
| -rw-r--r-- | nuttx/drivers/usbdev/pl2303.c | 129 |
1 files changed, 121 insertions, 8 deletions
diff --git a/nuttx/drivers/usbdev/pl2303.c b/nuttx/drivers/usbdev/pl2303.c index d10539fa7..7b07a9cba 100644 --- a/nuttx/drivers/usbdev/pl2303.c +++ b/nuttx/drivers/usbdev/pl2303.c @@ -343,6 +343,12 @@ static int usbclass_setup(FAR struct usbdevclass_driver_s *driver, size_t outlen); static void usbclass_disconnect(FAR struct usbdevclass_driver_s *driver, FAR struct usbdev_s *dev); +#ifdef CONFIG_SERIAL_REMOVABLE +static void usbclass_suspend(FAR struct usbdevclass_driver_s *driver, + FAR struct usbdev_s *dev); +static void usbclass_resume(FAR struct usbdevclass_driver_s *driver, + FAR struct usbdev_s *dev); +#endif /* Serial port *************************************************************/ @@ -366,8 +372,13 @@ static const struct usbdevclass_driverops_s g_driverops = usbclass_unbind, /* unbind */ usbclass_setup, /* setup */ usbclass_disconnect, /* disconnect */ +#ifdef CONFIG_SERIAL_REMOVABLE + usbclass_suspend, /* suspend */ + usbclass_resume, /* resume */ +#else NULL, /* suspend */ NULL, /* resume */ +#endif }; /* Serial port *************************************************************/ @@ -983,6 +994,14 @@ static void usbclass_resetconfig(FAR struct pl2303_dev_s *priv) priv->config = PL2303_CONFIGIDNONE; + /* Inform the "upper half" driver that there is no (functional) USB + * connection. + */ + +#ifdef CONFIG_SERIAL_REMOVABLE + uart_connected(&priv->serdev, false); +#endif + /* Disable endpoints. This should force completion of all pending * transfers. */ @@ -1112,10 +1131,20 @@ static int usbclass_setconfig(FAR struct pl2303_dev_s *priv, uint8_t config) usbtrace(TRACE_CLSERROR(USBSER_TRACEERR_RDSUBMIT), (uint16_t)-ret); goto errout; } + priv->nrdq++; } + /* We are successfully configured */ + priv->config = config; + + /* Inform the "upper half" driver that we are "open for business" */ + +#ifdef CONFIG_SERIAL_REMOVABLE + uart_connected(&priv->serdev, true); +#endif + return OK; errout: @@ -1844,12 +1873,20 @@ static void usbclass_disconnect(FAR struct usbdevclass_driver_s *driver, } #endif - /* Reset the configuration */ + /* Inform the "upper half serial driver that we have lost the USB serial + * connection. + */ flags = irqsave(); +#ifdef CONFIG_SERIAL_REMOVABLE + uart_connected(&priv->serdev, false); +#endif + + /* Reset the configuration */ + usbclass_resetconfig(priv); - /* Clear out all data in the circular buffer */ + /* Clear out all outgoing data in the circular buffer */ priv->serdev.xmit.head = 0; priv->serdev.xmit.tail = 0; @@ -1863,6 +1900,79 @@ static void usbclass_disconnect(FAR struct usbdevclass_driver_s *driver, } /**************************************************************************** + * Name: usbclass_suspend + * + * Description: + * Handle the USB suspend event. + * + ****************************************************************************/ + +#ifdef CONFIG_SERIAL_REMOVABLE +static void usbclass_suspend(FAR struct usbdevclass_driver_s *driver, + FAR struct usbdev_s *dev) +{ + FAR struct cdcacm_dev_s *priv; + + usbtrace(TRACE_CLASSSUSPEND, 0); + +#ifdef CONFIG_DEBUG + if (!driver || !dev) + { + usbtrace(TRACE_CLSERROR(USBSER_TRACEERR_INVALIDARG), 0); + return; + } +#endif + + /* Extract reference to private data */ + + priv = ((FAR struct cdcacm_driver_s*)driver)->dev; + + /* And let the "upper half" driver now that we are suspended */ + + uart_connected(&priv->serdev, false); +} +#endif + +/**************************************************************************** + * Name: usbclass_resume + * + * Description: + * Handle the USB resume event. + * + ****************************************************************************/ + +#ifdef CONFIG_SERIAL_REMOVABLE +static void usbclass_resume(FAR struct usbdevclass_driver_s *driver, + FAR struct usbdev_s *dev) +{ + FAR struct cdcacm_dev_s *priv; + + usbtrace(TRACE_CLASSRESUME, 0); + +#ifdef CONFIG_DEBUG + if (!driver || !dev) + { + usbtrace(TRACE_CLSERROR(USBSER_TRACEERR_INVALIDARG), 0); + return; + } +#endif + + /* Extract reference to private data */ + + priv = ((FAR struct cdcacm_driver_s*)driver)->dev; + + /* Are we still configured? */ + + if (priv->config != PL2303_CONFIGIDNONE) + { + /* Yes.. let the "upper half" know that have resumed */ + + uart_connected(&priv->serdev, true); + } +} +#endif + +/**************************************************************************** * Serial Device Methods ****************************************************************************/ @@ -2185,12 +2295,15 @@ int usbdev_serialinitialize(int minor) /* Initialize the serial driver sub-structure */ - priv->serdev.recv.size = CONFIG_PL2303_RXBUFSIZE; - priv->serdev.recv.buffer = priv->rxbuffer; - priv->serdev.xmit.size = CONFIG_PL2303_TXBUFSIZE; - priv->serdev.xmit.buffer = priv->txbuffer; - priv->serdev.ops = &g_uartops; - priv->serdev.priv = priv; +#ifdef CONFIG_SERIAL_REMOVABLE + priv->serdev.disconnected = true; +#endif + priv->serdev.recv.size = CONFIG_PL2303_RXBUFSIZE; + priv->serdev.recv.buffer = priv->rxbuffer; + priv->serdev.xmit.size = CONFIG_PL2303_TXBUFSIZE; + priv->serdev.xmit.buffer = priv->txbuffer; + priv->serdev.ops = &g_uartops; + priv->serdev.priv = priv; /* Initialize the USB class driver structure */ |