Renesas R8A66597, Manual

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Renesas USB Device USB Host Mass Storage Class Driver(HMSC)
R01AN0513EJ0110 Rev.1.10 Page 19 of 55
Aug 10, 2011
Table 3.14 usb_hmsc_SetElsCbw()
Name Initialize CBW Parameters for Other Commands
Call format void usb_hmsc_SetElsCbw(uint8_t *data, uint32_t trans_byte, uint16_t side)
uint8_t
*data Command data address
uint32_t trans_byte Transfer data size Arguments
uint16_t side Drive number
Return values void
Description
Generates the CBW for commands other than READ10 and WRITE10.
Set the command field before calling the function and the fields other than the following
either before or after calling the function.
dCBWTag, dCBWDTL, bmCBWFlags.CBWdir, bmCBWFlags.reserved7,
bCBWLUN.bCBWLUN, bCBWLUN.reserved4, bCBWCBLength.reserved3
Notes
Updates usb_ghmsc_Cbw in the global area.
The command data is generated with a fixed length of 12 bytes.
Table 3.15 usb_hmsc_CbwTagCount()
Name Update Tag Information
Call format void usb_hmsc_CbwTagCount(uint16_t msgnum)
Arguments uint16_t msgnum Driver number
Return values void
Description Updates usb_ghmsc_CbwTagNo in the global area.
Notes When usb_ghmsc_CbwTagNo = 0, the value is incremented by 1.
Table 3.16 usb_hmsc_CheckCsw()
Name Check CSW
Call format uint16_t usb_hmsc_CheckCsw(uint16_t drvnum)
Arguments uint16_t drvnum Drive number
Return values uint16_t
USBC_HMSC_OK CSW-OK received
USBC_HMSC_CSW_ERR CSW-NG (fail) received
USBC_HMSC_CSW_PHASE_ERR Phase error
Description
Checks the following contents in the in the received CSW.
a) dCSWSignature in received CSW
Notes In case of a phase error, MassStorageReset is executed.
Table 3.17 R_usb hmsc_SetDevSts()
Name Set HMSCD Operation State
Call format uint16_t R_usb_hmsc_SetDevSts(uint16_t data)
Arguments uint16_t data Operation State
Return values uint16_t USBC_DONE Normal end
Description Updates the HMSCD operation state to the value specified by the argument.
Notes Updates usb_ghmsc_AttSts in the global area.
Table 3.18 R_usb_hmsc_GetDevSts()
Name Check HMSCD Operation State
Call format uint16_t R_usb_hmsc_GetDevSts(void)
Arguments void
Return values uint16_t
USBC_HMSC_DEV_DET Detach
USBC_HMSC_DEV_ATT Attach
Description Returns the HMSCD operation state.
Notes