improve msc device

- change tud_msc_scsi_cb return type to simply bool
- change tud_msc_write10_cb, tud_msc_read10_cb params order

2 files changed, 31 insertions, 35 deletions

diff --git a/tinyusb/class/msc/msc_device.c b/tinyusb/class/msc/msc_device.c
index 225a4fc35..67c4533ce 100644
--- a/tinyusb/class/msc/msc_device.c
+++ b/tinyusb/class/msc/msc_device.c
@@ -162,9 +162,6 @@ tusb_error_t mscd_control_request_st(uint8_t rhport, tusb_control_request_t cons
   OSAL_SUBTASK_END

 }

 

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

-// MSCD APPLICATION CALLBACK

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

 tusb_error_t mscd_xfer_cb(uint8_t rhport, uint8_t ep_addr, tusb_event_t event, uint32_t xferred_bytes)

 {

   mscd_interface_t* const p_msc = &mscd_data;

@@ -206,7 +203,7 @@ tusb_error_t mscd_xfer_cb(uint8_t rhport, uint8_t ep_addr, tusb_event_t event, u
 

         if ( p_cbw->xfer_bytes == 0)

         {

-          p_csw->status = tud_msc_scsi_cb(rhport, p_cbw->lun, p_cbw->command, p_msc->scsi_data, &p_msc->data_len);

+          p_csw->status = tud_msc_scsi_cb(rhport, p_cbw->lun, p_cbw->command, p_msc->scsi_data, &p_msc->data_len) ? MSC_CSW_STATUS_PASSED : MSC_CSW_STATUS_FAILED;

           p_msc->stage  = MSC_STAGE_STATUS;

         }

         else if ( !BIT_TEST_(p_cbw->dir, 7) )

@@ -216,7 +213,7 @@ tusb_error_t mscd_xfer_cb(uint8_t rhport, uint8_t ep_addr, tusb_event_t event, u
         }

         else

         {

-          p_csw->status = tud_msc_scsi_cb(rhport, p_cbw->lun, p_cbw->command, p_msc->scsi_data, &p_msc->data_len);

+          p_csw->status = tud_msc_scsi_cb(rhport, p_cbw->lun, p_cbw->command, p_msc->scsi_data, &p_msc->data_len) ? MSC_CSW_STATUS_PASSED : MSC_CSW_STATUS_FAILED;

 

           TU_ASSERT( p_cbw->xfer_bytes >= p_msc->data_len, TUSB_ERROR_INVALID_PARA ); // cannot return more than host expect

           TU_ASSERT( sizeof(p_msc->scsi_data) >= p_msc->data_len, TUSB_ERROR_NOT_ENOUGH_MEMORY); // needs to increase size for scsi_data

@@ -257,7 +254,7 @@ tusb_error_t mscd_xfer_cb(uint8_t rhport, uint8_t ep_addr, tusb_event_t event, u
         // Invoke callback if it is not READ10, WRITE10

         if ( ! ((SCSI_CMD_READ_10 == p_cbw->command[0]) || (SCSI_CMD_WRITE_10 == p_cbw->command[0])) )

         {

-          p_csw->status = tud_msc_scsi_cb(rhport, p_cbw->lun, p_cbw->command, p_msc->scsi_data, &p_msc->data_len);

+          p_csw->status = tud_msc_scsi_cb(rhport, p_cbw->lun, p_cbw->command, p_msc->scsi_data, &p_msc->data_len) ? MSC_CSW_STATUS_PASSED : MSC_CSW_STATUS_FAILED;

         }

 

         p_msc->stage = MSC_STAGE_STATUS;

@@ -308,10 +305,10 @@ static bool read10_write10_data_xfer(uint8_t rhport, mscd_interface_t* p_msc)
 

   if (SCSI_CMD_READ_10 == p_cbw->command[0])

   {

-    xfer_block = tud_msc_read10_cb (rhport, p_cbw->lun, &p_buffer, lba, block_count);

+    xfer_block = tud_msc_read10_cb (rhport, p_cbw->lun, lba, block_count, &p_buffer);

   }else

   {

-    xfer_block = tud_msc_write10_cb(rhport, p_cbw->lun, &p_buffer, lba, block_count);

+    xfer_block = tud_msc_write10_cb(rhport, p_cbw->lun, lba, block_count, &p_buffer);

   }

 

   xfer_block = min16_of(xfer_block, block_count);

diff --git a/tinyusb/class/msc/msc_device.h b/tinyusb/class/msc/msc_device.h
index 6b44ece26..03beaf7a1 100644
--- a/tinyusb/class/msc/msc_device.h
+++ b/tinyusb/class/msc/msc_device.h
@@ -57,64 +57,63 @@
 // Should be used only with MCU that support more than 1 ports

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

 

-

-

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

 // APPLICATION CALLBACK API

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

-

-/** \brief 			Callback that is invoked when tinyusb stack received \ref SCSI_CMD_READ_10 command from host

- * \param[in]		rhport	    Root hub port

+/** \brief Callback invoked when received \ref SCSI_CMD_READ_10 command

+ * \param[in]		\rhport     Root hub port

  * \param[in]		lun         Targeted Logical Unit

- * \param[out]	pp_buffer   Pointer to buffer which application need to update with the response data's address.

  *                          Must be accessible by USB controller (see \ref CFG_TUSB_ATTR_USBRAM)

  * \param[in]		lba         Starting Logical Block Address to be read

  * \param[in]		block_count Number of requested block

+ * \param[out]	pp_buffer   Pointer to buffer which application need to update with the response data's address.

+ *

  * \retval      non-zero    Actual number of block that application processed, must be less than or equal to \a \b block_count.

  * \retval      zero        Indicate error in retrieving data from application. Tinyusb device stack will \b STALL the corresponding

  *                          endpoint and return failed status in command status wrapper phase.

+ *

  * \note        Host can request dozens of Kbytes in one command e.g \a \b block_count = 128, it is insufficient to require

  *              application to have that much of buffer. Instead, application can return the number of blocks it can processed,

  *              the stack after transferred that amount of data will continue to invoke this callback with adjusted \a \b lba and \a \b block_count.

  *              \n\n Although this callback is called by tinyusb device task (non-isr context), however as all the classes share

- *              the same task (to save resource), any delay in this callback will cause delay in reponse on other classes.

+ *              the same task (to save resource), any delay in this callback will cause delay in response on other classes.

  */

-uint16_t tud_msc_read10_cb (uint8_t rhport, uint8_t lun, void** pp_buffer, uint32_t lba, uint16_t block_count);

+uint16_t tud_msc_read10_cb (uint8_t rhport, uint8_t lun, uint32_t lba, uint16_t block_count, void** pp_buffer);

+

+//void     tud_msc_read10_cmpl_cb(uint8_t rhport, uint8_t lun);

 

-/** \brief 			Callback that is invoked when tinyusb stack received \ref SCSI_CMD_WRITE_10 command from host

+/** \brief 			Callback invoked when received \ref SCSI_CMD_WRITE_10 command

  * \param[in]		rhport	    Root hub port

  * \param[in]		lun         Targeted Logical Unit

- * \param[out]	pp_buffer   Pointer to buffer which application need to update with the address to hold data from host

  *                          Must be accessible by USB controller (see \ref CFG_TUSB_ATTR_USBRAM)

  * \param[in]		lba         Starting Logical Block Address to be write

  * \param[in]		block_count Number of requested block

+ * \param[out]	pp_buffer   Pointer to buffer which application need to update with the address to hold data from host

+ *

  * \retval      non-zero    Actual number of block that application can receive and must be less than or equal to \a \b block_count.

  * \retval      zero        Indicate error in retrieving data from application. Tinyusb device stack will \b STALL the corresponding

  *                          endpoint and return failed status in command status wrapper phase.

+ *

  * \note        Host can request dozens of Kbytes in one command e.g \a \b block_count = 128, it is insufficient to require

  *              application to have that much of buffer. Instead, application can return the number of blocks it can processed,

  *              the stack after transferred that amount of data will continue to invoke this callback with adjusted \a \b lba and \a \b block_count.

  *              \n\n Although this callback is called by tinyusb device task (non-isr context), however as all the classes share

- *              the same task (to save resource), any delay in this callback will cause delay in reponse on other classes.

+ *              the same task (to save resource), any delay in this callback will cause delay in response on other classes.

  */

-uint16_t tud_msc_write10_cb(uint8_t rhport, uint8_t lun, void** pp_buffer, uint32_t lba, uint16_t block_count);

+uint16_t tud_msc_write10_cb (uint8_t rhport, uint8_t lun, uint32_t lba, uint16_t block_count, void** pp_buffer);

 

-// p_length [in,out] allocated/maximum length, application update with actual length

-/** \brief 			Callback that is invoked when tinyusb stack received an SCSI command other than \ref SCSI_CMD_WRITE_10 and

- *              \ref SCSI_CMD_READ_10 command from host

- * \param[in]		rhport	    Root hub port

- * \param[in]		lun         Targeted Logical Unit

- * \param[in]		scsi_cmd    SCSI command contents, application should examine this command block to know which command host requested

- * \param[out]	buffer      Pointer to buffer which application need to update with the address to transfer data with host.

- *                          The buffer address can be anywhere since the stack will copy its contents to a internal USB-accessible buffer.

- * \param[in]		p_len       Expected length from host, Application could update to actual data, but could not larger than original value.

- * \retval      non-zero    Actual number of block that application can receive and must be less than or equal to \a \b block_count.

- * \retval      zero        Indicate error in retrieving data from application. Tinyusb device stack will \b STALL the corresponding

- *                          endpoint and return failed status in command status wrapper phase.

- * \note        Although this callback is called by tinyusb device task (non-isr context), however as all the classes share

- *              the same task (to save resource), any delay in this callback will cause delay in reponse on other classes.

+/** \brief 			  Callback invoked when received an SCSI command other than \ref SCSI_CMD_WRITE_10 and \ref SCSI_CMD_READ_10

+ * \param[in]		  rhport	    Root hub port

+ * \param[in]		  lun         Targeted Logical Unit

+ * \param[in]		  scsi_cmd    SCSI command contents, application should examine this command block to know which command host requested

+ * \param[out]    buffer      Pointer to buffer which application need to update with the address to transfer data with host.

+ *                            The buffer address can be anywhere since the stack will copy its contents to a internal USB-accessible buffer.

+ * \param[in,out] p_len       Expected length from host, Application could update to actual data, but could not larger than original value.

+ *

+ * \retval        true if successful, false otherwise. Tinyusb will then \b STALL the corresponding endpoint and return

+ *                failed status in command status wrapper stage.

  */

-msc_csw_status_t tud_msc_scsi_cb (uint8_t rhport, uint8_t lun, uint8_t scsi_cmd[16], void* buffer, uint16_t* p_len);

+bool tud_msc_scsi_cb (uint8_t rhport, uint8_t lun, uint8_t scsi_cmd[16], void* buffer, uint16_t* p_len);

 

 /** @} */

 /** @} */