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-rw-r--r--ucoo/hal/usb/usb_application.cc222
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diff --git a/ucoo/hal/usb/usb_application.cc b/ucoo/hal/usb/usb_application.cc
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+// ucoolib - Microcontroller object oriented library. {{{
+//
+// Copyright (C) 2016 Nicolas Schodet
+//
+// 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 "ucoo/hal/usb/usb_application.hh"
+#include "ucoo/hal/usb/usb_driver.hh"
+#include "ucoo/hal/usb/usb_def.hh"
+
+namespace ucoo {
+
+UsbApplication::UsbApplication (UsbDriver &driver)
+ : driver_ (driver)
+{
+ driver.register_application (*this);
+}
+
+void
+UsbApplicationWithSetup::ep_handle_out (uint8_t ep_address, int bcnt)
+{
+ assert (ep_address == 0);
+ if (setup_stage_ == SetupStage::HostToDeviceOUT)
+ {
+ if (bcnt <= data_size_)
+ {
+ if (bcnt)
+ {
+ driver_.ep_read (0, data_, bcnt);
+ data_ += bcnt;
+ data_size_ -= bcnt;
+ }
+ if (bcnt < USB_CONTROL_END_POINT_SIZE)
+ recv_done ();
+ }
+ else
+ {
+ driver_.ep_stall (0);
+ setup_stage_ = SetupStage::Idle;
+ }
+ }
+ else if (setup_stage_ == SetupStage::DeviceToHostStatusOUT && bcnt == 0)
+ {
+ // Status received, done.
+ setup_stage_ = SetupStage::Idle;
+ }
+ else
+ {
+ driver_.ep_stall (0);
+ setup_stage_ = SetupStage::Idle;
+ }
+}
+
+void
+UsbApplicationWithSetup::ep_handle_in (uint8_t ep_address)
+{
+ assert (ep_address == 0);
+ if (setup_stage_ == SetupStage::DeviceToHostIN)
+ {
+ if (data_)
+ {
+ int r = driver_.ep_write (0, data_, data_size_);
+ if (data_size_ < USB_CONTROL_END_POINT_SIZE)
+ data_ = nullptr;
+ else
+ {
+ data_ += r;
+ data_size_ -= r;
+ }
+ }
+ else
+ {
+ driver_.ep_read_ready (0, USB_CONTROL_END_POINT_SIZE);
+ setup_stage_ = SetupStage::DeviceToHostStatusOUT;
+ }
+ }
+ else if (setup_stage_ == SetupStage::HostToDeviceStatusIN)
+ {
+ // Status sent, done.
+ setup_stage_ = SetupStage::Idle;
+ }
+ else
+ {
+ driver_.ep_stall (0);
+ setup_stage_ = SetupStage::Idle;
+ }
+}
+
+void
+UsbApplicationWithSetup::send_status ()
+{
+ driver_.ep_write (0, nullptr, 0);
+ setup_stage_ = SetupStage::HostToDeviceStatusIN;
+}
+
+void
+UsbApplicationWithSetup::send (const char *data, int data_size)
+{
+ int r = driver_.ep_write (0, data, data_size);
+ if (data_size < USB_CONTROL_END_POINT_SIZE)
+ data_ = nullptr;
+ else
+ {
+ data_ = const_cast<char *> (data) + r;
+ data_size_ = data_size - r;
+ }
+ setup_stage_ = SetupStage::DeviceToHostIN;
+}
+
+void
+UsbApplicationWithSetup::recv (char *data, int data_size)
+{
+ data_ = data;
+ data_size_ = data_size;
+ driver_.ep_read_ready (0, USB_CONTROL_END_POINT_SIZE);
+ setup_stage_ = SetupStage::HostToDeviceOUT;
+}
+
+void
+UsbApplicationWithSetup::recv_done ()
+{
+ // Must be overrided if used.
+ assert_unreachable ();
+}
+
+UsbApplicationBasic::SetupResult
+UsbApplicationBasic::handle_setup (uint16_t request_n_type,
+ uint16_t value, uint16_t index,
+ uint16_t length)
+{
+ SetupResult res = SetupResult::NotHandled;
+ switch (request_n_type)
+ {
+ case USB_REQ_SET_ADDRESS:
+ if (index == 0 && length == 0)
+ {
+ usb_trace ("setup set address %d", value);
+ driver_.set_address (value);
+ send_status ();
+ res = SetupResult::Handled;
+ }
+ break;
+ case USB_REQ_GET_DESCRIPTOR:
+ usb_trace ("setup get descriptor 0x%04x", value);
+ res = send_descriptor (value >> 8, value & 0xff, index, length);
+ break;
+ case USB_REQ_SET_CONFIGURATION:
+ if (index == 0 && length == 0)
+ {
+ usb_trace ("setup set configuration %d", value);
+ driver_.set_configuration (value);
+ send_status ();
+ res = SetupResult::Handled;
+ }
+ break;
+ case USB_REQ_SET_INTERFACE:
+ if (length == 0)
+ {
+ usb_trace ("setup set interface %d", value);
+ // TODO
+ send_status ();
+ res = SetupResult::Handled;
+ }
+ break;
+ }
+ return res;
+}
+
+void
+UsbApplicationBasic::handle_configuration_set (uint8_t configuration)
+{
+}
+
+UsbApplicationBasic::SetupResult
+UsbApplicationBasic::send_descriptor (uint8_t desc_type, uint8_t desc_index,
+ uint16_t language, uint16_t length)
+{
+ const details::UsbDesc *desc = nullptr;
+ switch (desc_type)
+ {
+ case 1: // Device.
+ if (desc_index == 0 || language == 0)
+ desc = &device_desc_;
+ break;
+ case 2: // Configuration.
+ if (desc_index == 0 || language == 0)
+ desc = &configuration_desc_;
+ break;
+ case 3: // String.
+ if ((desc_index == 0 && language == 0)
+ || (desc_index != 0 && desc_index < string_descs_nb_
+ && language == ucoo::USB_LANGUAGE_EN_US))
+ desc = &string_descs_[desc_index];
+ }
+ if (desc)
+ {
+ send (desc->desc,
+ desc->desc_size < length ? desc->desc_size : length);
+ return SetupResult::Handled;
+ }
+ else
+ return SetupResult::NotHandled;
+}
+
+} // namespace ucoo