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minor clean up

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This commit is contained in:
hathach 2021-08-27 13:18:51 +07:00
parent 9394de6ae7
commit 032770682e
1 changed files with 19 additions and 17 deletions
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36
src/class/msc/msc_device.c
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@ -99,6 +99,18 @@ static inline uint16_t rdwr10_get_blockcount(uint8_t const command[])
return tu_ntohs(block_count);
}
static inline bool send_csw(uint8_t rhport, mscd_interface_t* p_msc)
{
p_msc->stage = MSC_STAGE_STATUS_SENT;
return usbd_edpt_xfer(rhport, p_msc->ep_in , (uint8_t*) &p_msc->csw, sizeof(msc_csw_t));
}
static inline bool prepare_cbw(uint8_t rhport, mscd_interface_t* p_msc)
{
p_msc->stage = MSC_STAGE_CMD;
return usbd_edpt_xfer(rhport, p_msc->ep_out, (uint8_t*) &p_msc->cbw, sizeof(msc_cbw_t));
}
//--------------------------------------------------------------------+
// Debug
//--------------------------------------------------------------------+
@ -175,12 +187,12 @@ uint16_t mscd_open(uint8_t rhport, tusb_desc_interface_t const * itf_desc, uint1
TU_ASSERT( usbd_open_edpt_pair(rhport, tu_desc_next(itf_desc), 2, TUSB_XFER_BULK, &p_msc->ep_out, &p_msc->ep_in), 0 );
// Prepare for Command Block Wrapper
TU_ASSERT( usbd_edpt_xfer(rhport, p_msc->ep_out, (uint8_t*) &p_msc->cbw, sizeof(msc_cbw_t)), drv_len);
TU_ASSERT( prepare_cbw(rhport, p_msc), drv_len);
return drv_len;
}
static void process_bot_reset(mscd_interface_t* p_msc)
static void proc_bot_reset(mscd_interface_t* p_msc)
{
p_msc->stage = MSC_STAGE_CMD;
p_msc->total_len = 0;
@ -191,7 +203,6 @@ static void process_bot_reset(mscd_interface_t* p_msc)
p_msc->add_sense_qualifier = 0;
}
// Invoked when a control transfer occurred on an interface of this class
// Driver response accordingly to the request and the transfer stage (setup/data/ack)
// return false to stall control endpoint (e.g unsupported request)
@ -223,8 +234,7 @@ bool mscd_control_xfer_cb(uint8_t rhport, uint8_t stage, tusb_control_request_t
if ( p_msc->stage == MSC_STAGE_STATUS )
{
// resume sending SCSI status if we are in this stage previously before stalled
p_msc->stage = MSC_STAGE_STATUS_SENT;
TU_ASSERT( usbd_edpt_xfer(rhport, p_msc->ep_in , (uint8_t*) &p_msc->csw, sizeof(msc_csw_t)) );
TU_ASSERT( send_csw(rhport, p_msc) );
}
}
else if ( ep_addr == p_msc->ep_out )
@ -232,7 +242,7 @@ bool mscd_control_xfer_cb(uint8_t rhport, uint8_t stage, tusb_control_request_t
if ( p_msc->stage == MSC_STAGE_CMD )
{
// part of reset recovery (probably due to invalid CBW) -> prepare for new command
TU_ASSERT( usbd_edpt_xfer(rhport, p_msc->ep_out, (uint8_t*) &p_msc->cbw, sizeof(msc_cbw_t)) );
TU_ASSERT( prepare_cbw(rhport, p_msc) );
}
}
}
@ -250,7 +260,7 @@ bool mscd_control_xfer_cb(uint8_t rhport, uint8_t stage, tusb_control_request_t
TU_VERIFY(request->wValue == 0 && request->wLength == 0);
// driver state reset
process_bot_reset(p_msc);
proc_bot_reset(p_msc);
tud_control_status(rhport, request);
break;
@ -495,11 +505,7 @@ bool mscd_xfer_cb(uint8_t rhport, uint8_t ep_addr, xfer_result_t event, uint32_t
break;
}
// Move to default CMD stage
p_msc->stage = MSC_STAGE_CMD;
// Queue for the next CBW
TU_ASSERT( usbd_edpt_xfer(rhport, p_msc->ep_out, (uint8_t*) &p_msc->cbw, sizeof(msc_cbw_t)) );
TU_ASSERT( prepare_cbw(rhport, p_msc) );
}
break;
@ -511,11 +517,7 @@ bool mscd_xfer_cb(uint8_t rhport, uint8_t ep_addr, xfer_result_t event, uint32_t
// skip status if epin is currently stalled, will do it when received Clear Stall request
if ( !usbd_edpt_stalled(rhport, p_msc->ep_in) )
{
// Move to Status Sent stage
p_msc->stage = MSC_STAGE_STATUS_SENT;
// Send SCSI Status
TU_ASSERT(usbd_edpt_xfer(rhport, p_msc->ep_in , (uint8_t*) &p_msc->csw, sizeof(msc_csw_t)));
TU_ASSERT( send_csw(rhport, p_msc) );
}
}