Add DFU Class per Version 1.1 Spec

src/class/dfu/dfu_rt_device.h

@@ -29,36 +29,106 @@
 
 #include "common/tusb_common.h"
 #include "device/usbd.h"
+#include "dfu.h"
 
 #ifdef __cplusplus
  extern "C" {
 #endif
 
-
-//--------------------------------------------------------------------+
-// Common Definitions
-//--------------------------------------------------------------------+
-
-// DFU Protocol
-typedef enum
-{
-  DFU_PROTOCOL_RT  = 1,
-  DFU_PROTOCOL_DFU = 2,
-} dfu_protocol_type_t;
-
-// DFU Descriptor Type
-typedef enum
-{
-  DFU_DESC_FUNCTIONAL = 0x21,
-} dfu_descriptor_type_t;
-
-
 //--------------------------------------------------------------------+
 // Application Callback API (weak is optional)
 //--------------------------------------------------------------------+
+// Allow the application to update the status as required.
+// Is set to DFU_STATUS_OK during internal initialization and USB reset
+// Value is not checked to allow for custom statuses to be used
+void tud_dfu_runtime_set_status(dfu_mode_device_status_t status);
 
-// Invoked when received new data
-TU_ATTR_WEAK void tud_dfu_runtime_reboot_to_dfu_cb(void);
+// Invoked when a DFU_DETACH request is received and bitWillDetatch is set
+void tud_dfu_runtime_reboot_to_dfu_cb();
+
+// Invoked when a DFU_DETACH request is received and bitWillDetatch is not set
+// This should start a timer for wTimeout ms
+// The application should then look for a USB reset signal to occur before
+// the timeout has elapsed.  The reset signal will invoke tud_dfu_runtime_usb_reset_cb.
+// If this reset signal is received before the timeout, then the application must
+// switch to DFU mode.
+// If the timer expires, the app does not need to do anything.
+// NOTE: This callback should return immediately, and not implement the delay
+// internally, as this can will hold up the USB stack
+TU_ATTR_WEAK void tud_dfu_runtime_detach_start_timer_cb(uint16_t wTimeout);
+
+// Invoked when a nonstandard request is received
+// Use may be vendor specific.
+// Return false to stall
+TU_ATTR_WEAK bool tud_dfu_runtime_req_nonstandard_cb(uint8_t rhport, uint8_t stage, tusb_control_request_t const * request);
+
+// Invoked when a reset is received to check if firmware is valid
+bool tud_dfu_runtime_firmware_valid_check_cb();
+
+// Invoked during initialization of the dfu driver to set attributes
+// Return byte set with bitmasks:
+//   DFU_FUNC_ATTR_CAN_DOWNLOAD_BITMASK
+//   DFU_FUNC_ATTR_CAN_UPLOAD_BITMASK
+//   DFU_FUNC_ATTR_MANIFESTATION_TOLERANT_BITMASK
+//   DFU_FUNC_ATTR_WILL_DETACH_BITMASK
+// Note: This should match the USB descriptor
+uint8_t tud_dfu_runtime_init_attrs_cb();
+
+// Invoked during initialization of the dfu driver to start as RT or DFU
+// This will determine if the internal state machine will begin in
+// APP_IDLE or DFU_IDLE
+TU_ATTR_WEAK dfu_protocol_type_t tud_dfu_runtime_init_cb();
+
+// Invoked during a DFU_GETSTATUS request to get for the string index
+// to the status description string table.
+TU_ATTR_WEAK uint8_t tud_dfu_runtime_get_status_desc_table_index_cb();
+
+// Invoked during a USB reset
+// Lets the app know that a USB reset has occurred so it can act accordingly,
+// See tud_dfu_runtime_detach_start_timer_cb for how to handle the APP_DETACH state
+// Other states will be application specific
+TU_ATTR_WEAK void tud_dfu_runtime_usb_reset_cb(uint8_t rhport, dfu_mode_state_t state);
+
+// Invoked during a DFU_GETSTATUS request to set the timeout in ms to use
+// before the subsequent DFU_GETSTATUS requests.
+// The purpose of this value is to allow the device to tell the host
+// how long to wait between the DFU_DNLOAD and DFU_GETSTATUS checks
+// to allow the device to have time to erase, write memory, etc.
+// ms_timeout is a pointer to array of length 3.
+// Refer to the USB DFU class specification for more details
+TU_ATTR_WEAK void tud_dfu_runtime_get_poll_timeout_cb(uint8_t *ms_timeout);
+
+// Invoked when a DFU_DNLOAD request is received
+// This should start a timer for ms_timeout ms
+// When the timer has elapsed, tud_dfu_runtime_poll_timeout_done must be called
+// NOTE: This callback should return immediately, and not implement the delay
+// internally, as this will hold up the class stack from receiving any packets
+// during the DFU_DNLOAD_SYNC and DFU_DNBUSY states
+void tud_dfu_runtime_start_poll_timeout_cb(uint8_t *ms_timeout);
+
+// Must be called when the poll_timeout has elapsed
+void tud_dfu_runtime_poll_timeout_done();
+
+// Invoked when a DFU_DNLOAD request is received
+// This callback takes the wBlockNum chunk of length length and provides it
+// to the application at the data pointer.  This data is only valid for this
+// call, so the app must use it not or copy it.
+void tud_dfu_runtime_req_dnload_data_cb(uint16_t wBlockNum, uint8_t* data, uint16_t length);
+
+// Invoked during the last DFU_DNLOAD request, signifying that the host believes
+// it is done transmitting data.
+// Return true if the application agrees there is no more data
+// Return false if the device disagrees, which will stall the pipe, and the Host
+//              should initiate a recovery procedure
+bool tud_dfu_runtime_device_data_done_check_cb();
+
+// Invoked when the Host has terminated a download or upload transfer
+TU_ATTR_WEAK void tud_dfu_runtime_abort_cb();
+
+// Invoked when a DFU_UPLOAD request is received
+// This callback must populate data with up to length bytes
+// Return the number of bytes to write
+uint16_t tud_dfu_runtime_req_upload_data_cb(uint16_t block_num, uint8_t* data, uint16_t length);
 
 //--------------------------------------------------------------------+
 // Internal Class Driver API
@@ -67,8 +137,11 @@ void     dfu_rtd_init(void);
 void     dfu_rtd_reset(uint8_t rhport);
 uint16_t dfu_rtd_open(uint8_t rhport, tusb_desc_interface_t const * itf_desc, uint16_t max_len);
 bool     dfu_rtd_control_xfer_cb(uint8_t rhport, uint8_t stage, tusb_control_request_t const * request);
-bool     dfu_rtd_xfer_cb(uint8_t rhport, uint8_t ep_addr, xfer_result_t event, uint32_t xferred_bytes);
 
+//--------------------------------------------------------------------+
+void     dfu_mode_init(void);
+void     dfu_mode_reset(uint8_t rhport);
+void     dfu_mode_req_dnload_reply(uint8_t rhport, tusb_control_request_t const * request);
 #ifdef __cplusplus
  }
 #endif