Merge branch 'develop'

1 files changed, 239 insertions, 0 deletions

diff --git a/src/class/cdc/cdc_host.c b/src/class/cdc/cdc_host.c
new file mode 100644
index 000000000..d6767d0a7
--- /dev/null
+++ b/src/class/cdc/cdc_host.c
@@ -0,0 +1,239 @@
+/**************************************************************************/

+/*!

+    @file     cdc_host.c

+    @author   hathach (tinyusb.org)

+

+    @section LICENSE

+

+    Software License Agreement (BSD License)

+

+    Copyright (c) 2013, hathach (tinyusb.org)

+    All rights reserved.

+

+    Redistribution and use in source and binary forms, with or without

+    modification, are permitted provided that the following conditions are met:

+    1. Redistributions of source code must retain the above copyright

+    notice, this list of conditions and the following disclaimer.

+    2. Redistributions in binary form must reproduce the above copyright

+    notice, this list of conditions and the following disclaimer in the

+    documentation and/or other materials provided with the distribution.

+    3. Neither the name of the copyright holders nor the

+    names of its contributors may be used to endorse or promote products

+    derived from this software without specific prior written permission.

+

+    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ''AS IS'' AND ANY

+    EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED

+    WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE

+    DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE FOR ANY

+    DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES

+    (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;

+    LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND

+    ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

+    (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS

+    SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

+

+    This file is part of the tinyusb stack.

+*/

+/**************************************************************************/

+

+#include "tusb_option.h"

+

+#if (TUSB_OPT_HOST_ENABLED && CFG_TUH_CDC)

+

+#define _TINY_USB_SOURCE_FILE_

+

+#include "common/tusb_common.h"

+#include "cdc_host.h"

+

+//--------------------------------------------------------------------+

+// MACRO CONSTANT TYPEDEF

+//--------------------------------------------------------------------+

+typedef struct {

+  uint8_t itf_num;

+  uint8_t itf_protocol;

+

+  uint8_t ep_notif;

+  uint8_t ep_in;

+  uint8_t ep_out;

+

+  cdc_acm_capability_t acm_capability;

+

+} cdch_data_t;

+

+//--------------------------------------------------------------------+

+// INTERNAL OBJECT & FUNCTION DECLARATION

+//--------------------------------------------------------------------+

+static cdch_data_t cdch_data[CFG_TUSB_HOST_DEVICE_MAX];

+

+bool tuh_cdc_mounted(uint8_t dev_addr)

+{

+  cdch_data_t* cdc = &cdch_data[dev_addr-1];

+  return cdc->ep_in && cdc->ep_out;

+}

+

+bool tuh_cdc_is_busy(uint8_t dev_addr, cdc_pipeid_t pipeid)

+{

+  if ( !tuh_cdc_mounted(dev_addr) ) return false;

+

+  cdch_data_t const * p_cdc = &cdch_data[dev_addr-1];

+

+  switch (pipeid)

+  {

+    case CDC_PIPE_NOTIFICATION:

+      return hcd_edpt_busy(dev_addr, p_cdc->ep_notif );

+

+    case CDC_PIPE_DATA_IN:

+      return hcd_edpt_busy(dev_addr, p_cdc->ep_in );

+

+    case CDC_PIPE_DATA_OUT:

+      return hcd_edpt_busy(dev_addr, p_cdc->ep_out );

+

+    default:

+      return false;

+  }

+}

+

+//--------------------------------------------------------------------+

+// APPLICATION API (parameter validation needed)

+//--------------------------------------------------------------------+

+bool tuh_cdc_serial_is_mounted(uint8_t dev_addr)

+{

+  // TODO consider all AT Command as serial candidate

+  return tuh_cdc_mounted(dev_addr)                                         &&

+      (CDC_COMM_PROTOCOL_ATCOMMAND <= cdch_data[dev_addr-1].itf_protocol) &&

+      (cdch_data[dev_addr-1].itf_protocol <= CDC_COMM_PROTOCOL_ATCOMMAND_CDMA);

+}

+

+bool tuh_cdc_send(uint8_t dev_addr, void const * p_data, uint32_t length, bool is_notify)

+{

+  TU_VERIFY( tuh_cdc_mounted(dev_addr) );

+  TU_VERIFY( p_data != NULL && length, TUSB_ERROR_INVALID_PARA);

+

+  uint8_t const ep_out = cdch_data[dev_addr-1].ep_out;

+  if ( hcd_edpt_busy(dev_addr, ep_out) ) return false;

+

+  return hcd_pipe_xfer(dev_addr, ep_out, (void *) p_data, length, is_notify);

+}

+

+bool tuh_cdc_receive(uint8_t dev_addr, void * p_buffer, uint32_t length, bool is_notify)

+{

+  TU_VERIFY( tuh_cdc_mounted(dev_addr) );

+  TU_VERIFY( p_buffer != NULL && length, TUSB_ERROR_INVALID_PARA);

+

+  uint8_t const ep_in = cdch_data[dev_addr-1].ep_in;

+  if ( hcd_edpt_busy(dev_addr, ep_in) ) return false;

+

+  return hcd_pipe_xfer(dev_addr, ep_in, p_buffer, length, is_notify);

+}

+

+//--------------------------------------------------------------------+

+// USBH-CLASS DRIVER API

+//--------------------------------------------------------------------+

+void cdch_init(void)

+{

+  tu_memclr(cdch_data, sizeof(cdch_data_t)*CFG_TUSB_HOST_DEVICE_MAX);

+}

+

+bool cdch_open(uint8_t rhport, uint8_t dev_addr, tusb_desc_interface_t const *itf_desc, uint16_t *p_length)

+{

+  // Only support ACM

+  TU_VERIFY( CDC_COMM_SUBCLASS_ABSTRACT_CONTROL_MODEL == itf_desc->bInterfaceSubClass);

+

+  // Only support AT commands, no protocol and vendor specific commands.

+  TU_VERIFY(tu_within(CDC_COMM_PROTOCOL_NONE, itf_desc->bInterfaceProtocol, CDC_COMM_PROTOCOL_ATCOMMAND_CDMA) ||

+            0xff == itf_desc->bInterfaceProtocol);

+

+  uint8_t const * p_desc;

+  cdch_data_t * p_cdc;

+

+  p_desc = tu_desc_next(itf_desc);

+  p_cdc  = &cdch_data[dev_addr-1];

+

+  p_cdc->itf_num   = itf_desc->bInterfaceNumber;

+  p_cdc->itf_protocol = itf_desc->bInterfaceProtocol; // TODO 0xff is consider as rndis candidate, other is virtual Com

+

+  //------------- Communication Interface -------------//

+  (*p_length) = sizeof(tusb_desc_interface_t);

+

+  // Communication Functional Descriptors

+  while( TUSB_DESC_CLASS_SPECIFIC == p_desc[DESC_OFFSET_TYPE] )

+  {

+    if ( CDC_FUNC_DESC_ABSTRACT_CONTROL_MANAGEMENT == cdc_functional_desc_typeof(p_desc) )

+    {

+      // save ACM bmCapabilities

+      p_cdc->acm_capability = ((cdc_desc_func_acm_t const *) p_desc)->bmCapabilities;

+    }

+

+    (*p_length) += p_desc[DESC_OFFSET_LEN];

+    p_desc = tu_desc_next(p_desc);

+  }

+

+  if ( TUSB_DESC_ENDPOINT == p_desc[DESC_OFFSET_TYPE])

+  {

+    // notification endpoint

+    tusb_desc_endpoint_t const * ep_desc = (tusb_desc_endpoint_t const *) p_desc;

+

+    TU_ASSERT( hcd_edpt_open(rhport, dev_addr, ep_desc) );

+    p_cdc->ep_notif = ep_desc->bEndpointAddress;

+

+    (*p_length) += p_desc[DESC_OFFSET_LEN];

+    p_desc = tu_desc_next(p_desc);

+  }

+

+  //------------- Data Interface (if any) -------------//

+  if ( (TUSB_DESC_INTERFACE == p_desc[DESC_OFFSET_TYPE]) &&

+       (TUSB_CLASS_CDC_DATA == ((tusb_desc_interface_t const *) p_desc)->bInterfaceClass) )

+  {

+    (*p_length) += p_desc[DESC_OFFSET_LEN];

+    p_desc = tu_desc_next(p_desc);

+

+    // data endpoints expected to be in pairs

+    for(uint32_t i=0; i<2; i++)

+    {

+      tusb_desc_endpoint_t const *ep_desc = (tusb_desc_endpoint_t const *) p_desc;

+      TU_ASSERT(TUSB_DESC_ENDPOINT == ep_desc->bDescriptorType);

+      TU_ASSERT(TUSB_XFER_BULK == ep_desc->bmAttributes.xfer);

+

+      TU_ASSERT(hcd_edpt_open(rhport, dev_addr, ep_desc));

+

+      if ( tu_edpt_dir(ep_desc->bEndpointAddress) ==  TUSB_DIR_IN )

+      {

+        p_cdc->ep_in = ep_desc->bEndpointAddress;

+      }else

+      {

+        p_cdc->ep_out = ep_desc->bEndpointAddress;

+      }

+

+      (*p_length) += p_desc[DESC_OFFSET_LEN];

+      p_desc = tu_desc_next( p_desc );

+    }

+  }

+

+  // FIXME move to seperate API : connect

+  tusb_control_request_t request =

+  {

+    .bmRequestType_bit = { .recipient = TUSB_REQ_RCPT_INTERFACE, .type = TUSB_REQ_TYPE_CLASS, .direction = TUSB_DIR_OUT },

+    .bRequest = CDC_REQUEST_SET_CONTROL_LINE_STATE,

+    .wValue = 0x03, // dtr on, cst on

+    .wIndex = p_cdc->itf_num,

+    .wLength = 0

+  };

+

+  TU_ASSERT( usbh_control_xfer(dev_addr, &request, NULL) );

+

+  return true;

+}

+

+void cdch_isr(uint8_t dev_addr, uint8_t ep_addr, xfer_result_t event, uint32_t xferred_bytes)

+{

+  (void) ep_addr;

+  tuh_cdc_xfer_isr( dev_addr, event, 0, xferred_bytes );

+}

+

+void cdch_close(uint8_t dev_addr)

+{

+  cdch_data_t * p_cdc = &cdch_data[dev_addr-1];

+  tu_memclr(p_cdc, sizeof(cdch_data_t));

+}

+

+#endif