Renesas R8A66597, Руководство пользователя

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Renesas USB Device USB Host Mass Storage Class Driver(HMSC)
R01AN0513EJ0110 Rev.1.10 Page 22 of 55
Aug 10, 2011
4.4 HCI Interface Messages
Table 4.3 shows the HCI message structure.
Table 4.3 Interface Message Structure (USBC_UTR_t)
Format Variable Description Remarks
USBC_MH_t msghead Message header for SI7000/4 uITRON information area
uint16_t msginfo Message Info for F/W HCD information area
uint16_t keyword Port number, pipe number, etc. HCD information area
void tranadr Transfer data Start address Transmit/receive data area
uint32_t tranlen Transfer data length Transfer data size
uint16_t *setup Setup packet (for control only) Setup packet address
uint16_t status Transfer status HCD operation result
uint16_t pipectr Status of PIPECTR SQMON state during pipe switching
USBC_CB_t Complete Callback Function Address Call-back run function
uint8_t errcnt Error count Error information area used by HCD
uint8_t segment Segment information Continuous communication
determination
4.5 HCI Function Details
Table 4.4 usb_hmsc_SendCbw()
Name Transmit CBW
Call format uint16_t usb_hmsc_SendCbw(uint16_t drvnum)
Arguments uint16_t drvnum Drive number
Return values uint16_t
USBC_HMSC_OK Normal end
USBC_HMSC_CBW_ERR CBW transfer error
USBC_HMSC_SUBMIT_ERR Submit error
Description
Transmits the CBW.
When a STALL response is generated, reset recovery is executed.
Notes
Table 4.5 usb_hmsc_GetData()
Name Receive Data
Call format uint16_t usb_hmsc_GetData(uint16_t drvnum, uint8_t *buff, uint32_t size)
uint16_t drvnum
Drive number
uint8_t *buff Receive data area Arguments
uint32_t size Receive data size
Return values uint16_t
USBC_HMSC_OK Normal end
USBC_HMSC_DAT_RD_ERR Receive error
USBC_HMSC_SUBMIT_ERR Submit error
Description
Receives data.
When a STALL response is generated, the ClearFeature request is executed to continue
and the CSW is received.
Notes