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Fix incorrect DNLOAD request len passed to app

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Fixes bug where the app callback was getting the length of the status
request transfer rather than the length of the data stage payload.

TODO: Right now this returns the expected length, when it really should
be returning the transfer length.
This commit is contained in:
Jeremiah McCarthy 2021-04-05 11:13:42 -04:00
parent fb7b47cf07
commit 164d3e82e3
1 changed files with 17 additions and 6 deletions
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23
src/class/dfu/dfu_rt_device.c
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@ -46,8 +46,9 @@ typedef struct TU_ATTR_PACKED
bool blk_transfer_in_proc;
uint8_t itf_num;
CFG_TUSB_MEM_ALIGN uint8_t epin_buf[CFG_TUD_DFU_TRANSFER_BUFFER_SIZE];
CFG_TUSB_MEM_ALIGN uint8_t epout_buf[CFG_TUD_DFU_TRANSFER_BUFFER_SIZE];
uint16_t last_block_num;
uint16_t last_transfer_len;
CFG_TUSB_MEM_ALIGN uint8_t transfer_buf[CFG_TUD_DFU_TRANSFER_BUFFER_SIZE];
} dfu_state_ctx_t;
typedef struct TU_ATTR_PACKED
@ -161,6 +162,8 @@ void dfu_rtd_init(void)
_dfu_state_ctx.status = DFU_STATUS_OK;
_dfu_state_ctx.attrs = tud_dfu_runtime_init_attrs_cb();
_dfu_state_ctx.blk_transfer_in_proc = false;
_dfu_state_ctx.last_block_num = 0;
_dfu_state_ctx.last_transfer_len = 0;
dfu_rtd_debug_print_context();
}
@ -204,6 +207,8 @@ void dfu_rtd_reset(uint8_t rhport)
_dfu_state_ctx.status = DFU_STATUS_OK;
_dfu_state_ctx.attrs = tud_dfu_runtime_init_attrs_cb();
_dfu_state_ctx.blk_transfer_in_proc = false;
_dfu_state_ctx.last_block_num = 0;
_dfu_state_ctx.last_transfer_len = 0;
dfu_rtd_debug_print_context();
}
@ -290,8 +295,8 @@ void tud_dfu_runtime_set_status(dfu_mode_device_status_t status)
static uint16_t dfu_req_upload(uint8_t rhport, tusb_control_request_t const * request, uint16_t block_num, uint16_t wLength)
{
TU_VERIFY( wLength <= CFG_TUD_DFU_TRANSFER_BUFFER_SIZE);
uint16_t retval = tud_dfu_runtime_req_upload_data_cb(block_num, (uint8_t *)&_dfu_state_ctx.epin_buf, wLength);
tud_control_xfer(rhport, request, &_dfu_state_ctx.epin_buf, retval);
uint16_t retval = tud_dfu_runtime_req_upload_data_cb(block_num, (uint8_t *)&_dfu_state_ctx.transfer_buf, wLength);
tud_control_xfer(rhport, request, &_dfu_state_ctx.transfer_buf, retval);
return retval;
}
@ -319,12 +324,14 @@ static void dfu_req_getstate_reply(uint8_t rhport, tusb_control_request_t const
static void dfu_req_dnload_setup(uint8_t rhport, tusb_control_request_t const * request)
{
_dfu_state_ctx.last_block_num = request->wValue;
_dfu_state_ctx.last_transfer_len = request->wLength;
// TODO: add "zero" copy mode so the buffer we read into can be provided by the user
// if they wish, there still will be the internal control buffer copy to this buffer
// but this mode would provide zero copy from the class driver to the application
// setup for data phase
tud_control_xfer(rhport, request, &_dfu_state_ctx.epout_buf, request->wLength);
tud_control_xfer(rhport, request, &_dfu_state_ctx.transfer_buf, request->wLength);
}
static void dfu_mode_req_dnload_reply(uint8_t rhport, tusb_control_request_t const * request)
@ -338,8 +345,12 @@ static void dfu_mode_req_dnload_reply(uint8_t rhport, tusb_control_request_t con
tud_dfu_runtime_start_poll_timeout_cb((uint8_t *)&bwPollTimeout);
tud_dfu_runtime_req_dnload_data_cb(request->wValue, (uint8_t *)&_dfu_state_ctx.epout_buf, request->wLength);
// TODO: I want the real xferred len, not what is expected. May need to change usbd.c to do this.
tud_dfu_runtime_req_dnload_data_cb(_dfu_state_ctx.last_block_num, (uint8_t *)&_dfu_state_ctx.transfer_buf, _dfu_state_ctx.last_transfer_len);
_dfu_state_ctx.blk_transfer_in_proc = false;
_dfu_state_ctx.last_block_num = 0;
_dfu_state_ctx.last_transfer_len = 0;
}
void tud_dfu_runtime_poll_timeout_done()