improve msc device

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

examples/obsolete/device/src/msc_device_app.c

@@ -59,8 +59,8 @@ static scsi_inquiry_data_t const mscd_inquiry_data =
 
 static scsi_read_capacity10_data_t const mscd_read_capacity10_data =
 {
-    .last_lba   = ENDIAN_BE(DISK_BLOCK_NUM-1), // read capacity
-    .block_size = ENDIAN_BE(DISK_BLOCK_SIZE)
+    .last_lba   = ENDIAN_BE(DISK_BLOCK_NUM-1), // Big Endian
+    .block_size = ENDIAN_BE(DISK_BLOCK_SIZE)   // Big Endian
 };
 
 static scsi_sense_fixed_data_t mscd_sense_data =
@@ -99,7 +99,7 @@ void msc_app_umount(uint8_t rhport)
 
 }
 
-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)
 {
   // read10 & write10 has their own callback and MUST not be handled here
 
@@ -145,13 +145,13 @@ msc_csw_status_t tud_msc_scsi_cb (uint8_t rhport, uint8_t lun, uint8_t scsi_cmd[
 
     default:
       (*p_len) = 0;
-      return MSC_CSW_STATUS_FAILED;
+      return false;
   }
 
   if ( bufptr && buflen )
   {
     // Response len must not larger than expected from host
-    TU_ASSERT( (*p_len) >= buflen, MSC_CSW_STATUS_FAILED);
+    TU_ASSERT( (*p_len) >= buflen );
 
     memcpy(buffer, bufptr, buflen);
     (*p_len) = buflen;
@@ -165,7 +165,7 @@ msc_csw_status_t tud_msc_scsi_cb (uint8_t rhport, uint8_t lun, uint8_t scsi_cmd[
     mscd_sense_data.additional_sense_qualifier = 0;
   }
 
-  return MSC_CSW_STATUS_PASSED;
+  return true;
 }
 
 //--------------------------------------------------------------------+

examples/obsolete/device/src/msc_device_ramdisk.c

@@ -91,13 +91,13 @@ uint8_t msc_device_ramdisk[DISK_BLOCK_NUM][DISK_BLOCK_SIZE] =
 //--------------------------------------------------------------------+
 // IMPLEMENTATION
 //--------------------------------------------------------------------+
-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)
 {
   (*pp_buffer) = msc_device_ramdisk[lba];
 
   return min16_of(block_count, DISK_BLOCK_NUM);
 }
-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)
 {
   (*pp_buffer) = msc_device_ramdisk[lba];
 

examples/obsolete/device/src/msc_device_romdisk.c

@@ -97,7 +97,7 @@ static uint8_t sector_buffer[DISK_BLOCK_SIZE];
 //--------------------------------------------------------------------+
 // IMPLEMENTATION
 //--------------------------------------------------------------------+
-uint16_t tusbd_msc_read10_cb (uint8_t rhport, uint8_t lun, void** pp_buffer, uint32_t lba, uint16_t block_count)
+uint16_t tusbd_msc_read10_cb (uint8_t rhport, uint8_t lun, uint32_t lba, uint16_t block_count, void** pp_buffer)
 {
   memcpy(sector_buffer, msc_device_app_rommdisk[lba], DISK_BLOCK_SIZE);
   (*pp_buffer) = sector_buffer;
@@ -106,7 +106,7 @@ uint16_t tusbd_msc_read10_cb (uint8_t rhport, uint8_t lun, void** pp_buffer, uin
 }
 
 // Stall write10 by return 0, as this is readonly disk
-uint16_t tusbd_msc_write10_cb(uint8_t rhport, uint8_t lun, void** pp_buffer, uint32_t lba, uint16_t block_count)
+uint16_t tusbd_msc_write10_cb(uint8_t rhport, uint8_t lun, uint32_t lba, uint16_t block_count, void** pp_buffer)
 {
   (*pp_buffer) = NULL;
 

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);

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);
 
-/** \brief 			Callback that is invoked when tinyusb stack received \ref SCSI_CMD_WRITE_10 command from host
+//void     tud_msc_read10_cmpl_cb(uint8_t rhport, uint8_t lun);
+
+/** \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);
-
-// 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.
+uint16_t tud_msc_write10_cb (uint8_t rhport, uint8_t lun, uint32_t lba, uint16_t block_count, void** pp_buffer);
+
+/** \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);
 
 /** @} */
 /** @} */