Implementation of UDI MSC

Class internal implementation.

Macros
#define	UDI_MSC_BLOCK_SIZE   512L
	Static block size for all memories. More...

Variables to manage SCSI requests
	UDC_BSS (4)
	Structure to receive a CBW packet. More...

Routines manage SCSI Commands
Number of lun
static void	udi_msc_cbw_invalid (void)
static void	udi_msc_csw_invalid (void)
static void	udi_msc_cbw_wait (void)
static void	udi_msc_cbw_received (udd_ep_status_t status, iram_size_t nb_received, udd_ep_id_t ep)
static bool	udi_msc_cbw_validate (uint32_t alloc_len, uint8_t dir_flag)
static void	udi_msc_data_send (uint8_t *buffer, uint8_t buf_size)
static void	udi_msc_data_sent (udd_ep_status_t status, iram_size_t nb_sent, udd_ep_id_t ep)
static void	udi_msc_csw_process (void)
void	udi_msc_csw_send (void)
static void	udi_msc_csw_sent (udd_ep_status_t status, iram_size_t nb_sent, udd_ep_id_t ep)
static void	udi_msc_clear_sense (void)
static void	udi_msc_sense_fail (uint8_t sense_key, uint16_t add_sense, uint32_t lba)
static void	udi_msc_sense_pass (void)
static void	udi_msc_sense_fail_not_present (void)
static void	udi_msc_sense_fail_busy_or_change (void)
static void	udi_msc_sense_fail_hardware (void)
static void	udi_msc_sense_fail_protected (void)
static void	udi_msc_sense_fail_cdb_invalid (void)
static void	udi_msc_sense_command_invalid (void)
static void	udi_msc_spc_requestsense (void)
static void	udi_msc_spc_inquiry (void)
static bool	udi_msc_spc_testunitready_global (void)
static void	udi_msc_spc_testunitready (void)
static void	udi_msc_spc_mode_sense (bool b_sense10)
static void	udi_msc_spc_prevent_allow_medium_removal (void)
static void	udi_msc_sbc_start_stop (void)
static void	udi_msc_sbc_read_capacity (void)
static void	udi_msc_sbc_trans (bool b_read)
bool	udi_msc_process_trans (void)
	Process the background read/write commands. More...
static void	udi_msc_trans_ack (udd_ep_status_t status, iram_size_t n, udd_ep_id_t ep)
bool	udi_msc_trans_block (bool b_read, uint8_t *block, iram_size_t block_size, void(*callback)(udd_ep_status_t status, iram_size_t n, udd_ep_id_t ep))
	Transfers data to/from USB MSC endpoints. More...

#define UDI_MSC_BLOCK_SIZE   512L

Static block size for all memories.

Referenced by udi_msc_sbc_read_capacity(), and udi_msc_sbc_trans().

UDC_BSS

(

4

)

Structure to receive a CBW packet.

Structure to send a CSW packet

References CPU_TO_BE32, usb_msc_csw::dCSWSignature, and USB_CSW_SIGNATURE.

static void udi_msc_cbw_invalid ( void  )

static

References udd_ep_set_halt(), udd_ep_wait_stall_clear(), and UDI_MSC_EP_OUT.

Referenced by udi_msc_cbw_received().

static void udi_msc_cbw_received ( udd_ep_status_t  status, iram_size_t  nb_received, udd_ep_id_t  ep  )

static

References CPU_TO_BE32, le32_to_cpu, SBC_READ10, SBC_READ_CAPACITY10, SBC_START_STOP_UNIT, SBC_VERIFY10, SBC_WRITE10, SPC_INQUIRY, SPC_MODE_SENSE10, SPC_MODE_SENSE6, SPC_PREVENT_ALLOW_MEDIUM_REMOVAL, SPC_REQUEST_SENSE, SPC_TEST_UNIT_READY, UDD_EP_TRANSFER_OK, udi_msc_cbw_invalid(), udi_msc_csw_invalid(), udi_msc_csw_process(), udi_msc_sbc_read_capacity(), udi_msc_sbc_start_stop(), udi_msc_sbc_trans(), udi_msc_sense_command_invalid(), udi_msc_sense_fail_cdb_invalid(), udi_msc_sense_pass(), udi_msc_spc_inquiry(), udi_msc_spc_mode_sense(), udi_msc_spc_prevent_allow_medium_removal(), udi_msc_spc_requestsense(), udi_msc_spc_testunitready(), UNUSED, USB_CBW_LUN_MASK, and USB_CBW_SIGNATURE.

Referenced by udi_msc_cbw_wait().

static bool udi_msc_cbw_validate ( uint32_t  alloc_len, uint8_t  dir_flag  )

static

References udi_msc_csw_process(), udi_msc_sense_fail_cdb_invalid(), and USB_CBW_DIRECTION_IN.

Referenced by udi_msc_sbc_read_capacity(), udi_msc_sbc_trans(), udi_msc_spc_inquiry(), udi_msc_spc_mode_sense(), and udi_msc_spc_requestsense().

static void udi_msc_cbw_wait ( void  )

static

References udd_ep_run(), udd_ep_wait_stall_clear(), udi_msc_cbw_received(), and UDI_MSC_EP_OUT.

Referenced by udi_msc_csw_sent(), and udi_msc_setup().

static void udi_msc_clear_sense ( void  )

static

References SCSI_SENSE_ADDL_LEN, SCSI_SENSE_CURRENT, and SCSI_SENSE_VALID.

Referenced by udi_msc_sense_fail(), and udi_msc_sense_pass().

static void udi_msc_csw_invalid ( void  )

static

References udd_ep_set_halt(), udd_ep_wait_stall_clear(), and UDI_MSC_EP_IN.

Referenced by udi_msc_cbw_received().

static void udi_msc_csw_process ( void  )

static

References cpu_to_le32, udd_ep_set_halt(), udi_msc_csw_send(), UDI_MSC_EP_IN, UDI_MSC_EP_OUT, and USB_CBW_DIRECTION_IN.

Referenced by udi_msc_cbw_received(), udi_msc_cbw_validate(), udi_msc_data_send(), udi_msc_data_sent(), udi_msc_process_trans(), udi_msc_sbc_read_capacity(), udi_msc_sbc_start_stop(), udi_msc_sbc_trans(), udi_msc_spc_inquiry(), udi_msc_spc_prevent_allow_medium_removal(), and udi_msc_spc_testunitready().

void udi_msc_csw_send

(

void

)

References udd_ep_run(), udd_ep_wait_stall_clear(), udi_msc_csw_sent(), and UDI_MSC_EP_IN.

Referenced by udi_msc_csw_process().

static void udi_msc_csw_sent ( udd_ep_status_t  status, iram_size_t  nb_sent, udd_ep_id_t  ep  )

static

References udi_msc_cbw_wait(), and UNUSED.

Referenced by udi_msc_csw_send().

static void udi_msc_data_send ( uint8_t *  buffer, uint8_t  buf_size  )

static

References udd_ep_run(), udi_msc_csw_process(), udi_msc_data_sent(), UDI_MSC_EP_IN, and udi_msc_sense_fail_hardware().

Referenced by udi_msc_sbc_read_capacity(), udi_msc_spc_inquiry(), udi_msc_spc_mode_sense(), and udi_msc_spc_requestsense().

static void udi_msc_data_sent ( udd_ep_status_t  status, iram_size_t  nb_sent, udd_ep_id_t  ep  )

static

References UDD_EP_TRANSFER_OK, udi_msc_csw_process(), udi_msc_sense_pass(), and UNUSED.

Referenced by udi_msc_data_send().

bool udi_msc_process_trans

(

void

)

Process the background read/write commands.

Routine called by the main loop

References CTRL_BUSY, CTRL_FAIL, CTRL_GOOD, CTRL_NO_PRESENT, memory_2_usb(), udi_msc_csw_process(), udi_msc_sense_fail_busy_or_change(), udi_msc_sense_fail_hardware(), udi_msc_sense_fail_not_present(), udi_msc_sense_pass(), and usb_2_memory().

Referenced by main().

static void udi_msc_sbc_read_capacity ( void  )

static

References sbc_read_capacity10_data::block_len, cpu_to_be32, CPU_TO_BE32, CTRL_BUSY, CTRL_GOOD, CTRL_NO_PRESENT, sbc_read_capacity10_data::max_lba, mem_read_capacity(), UDC_BSS, UDI_MSC_BLOCK_SIZE, udi_msc_cbw_validate(), udi_msc_csw_process(), udi_msc_data_send(), udi_msc_sense_fail_busy_or_change(), udi_msc_sense_fail_hardware(), udi_msc_sense_fail_not_present(), and USB_CBW_DIRECTION_IN.

Referenced by udi_msc_cbw_received().

static void udi_msc_sbc_start_stop ( void  )

static

References mem_unload(), udi_msc_csw_process(), and udi_msc_sense_pass().

Referenced by udi_msc_cbw_received().

static void udi_msc_sbc_trans ( bool  b_read )

static

References LSB, mem_wr_protect(), MSB, MSB0, MSB1, MSB2, MSB3, UDI_MSC_BLOCK_SIZE, udi_msc_cbw_validate(), udi_msc_csw_process(), UDI_MSC_NOTIFY_TRANS_EXT, udi_msc_sense_fail_protected(), USB_CBW_DIRECTION_IN, and USB_CBW_DIRECTION_OUT.

Referenced by udi_msc_cbw_received().

static void udi_msc_sense_command_invalid ( void  )

static

References SCSI_ASC_INVALID_COMMAND_OPERATION_CODE, SCSI_SK_ILLEGAL_REQUEST, and udi_msc_sense_fail().

Referenced by udi_msc_cbw_received().

static void udi_msc_sense_fail ( uint8_t  sense_key, uint16_t  add_sense, uint32_t  lba  )

static

References udi_msc_clear_sense(), and USB_CSW_STATUS_FAIL.

Referenced by udi_msc_sense_command_invalid(), udi_msc_sense_fail_busy_or_change(), udi_msc_sense_fail_cdb_invalid(), udi_msc_sense_fail_hardware(), udi_msc_sense_fail_not_present(), and udi_msc_sense_fail_protected().

static void udi_msc_sense_fail_busy_or_change ( void  )

static

References SCSI_ASC_NOT_READY_TO_READY_CHANGE, SCSI_SK_UNIT_ATTENTION, and udi_msc_sense_fail().

Referenced by udi_msc_process_trans(), udi_msc_sbc_read_capacity(), and udi_msc_spc_testunitready_global().

static void udi_msc_sense_fail_cdb_invalid ( void  )

static

References SCSI_ASC_INVALID_FIELD_IN_CDB, SCSI_SK_ILLEGAL_REQUEST, and udi_msc_sense_fail().

Referenced by udi_msc_cbw_received(), udi_msc_cbw_validate(), udi_msc_spc_inquiry(), and udi_msc_spc_prevent_allow_medium_removal().

static void udi_msc_sense_fail_hardware ( void  )

static

References SCSI_ASC_NO_ADDITIONAL_SENSE_INFO, SCSI_SK_HARDWARE_ERROR, and udi_msc_sense_fail().

Referenced by udi_msc_data_send(), udi_msc_process_trans(), udi_msc_sbc_read_capacity(), and udi_msc_spc_testunitready_global().

static void udi_msc_sense_fail_not_present ( void  )

static

References SCSI_ASC_MEDIUM_NOT_PRESENT, SCSI_SK_NOT_READY, and udi_msc_sense_fail().

Referenced by udi_msc_process_trans(), udi_msc_sbc_read_capacity(), and udi_msc_spc_testunitready_global().

static void udi_msc_sense_fail_protected ( void  )

static

References SCSI_ASC_WRITE_PROTECTED, SCSI_SK_DATA_PROTECT, and udi_msc_sense_fail().

Referenced by udi_msc_sbc_trans().

static void udi_msc_sense_pass ( void  )

static

References udi_msc_clear_sense(), and USB_CSW_STATUS_PASS.

Referenced by udi_msc_cbw_received(), udi_msc_data_sent(), udi_msc_process_trans(), udi_msc_sbc_start_stop(), udi_msc_spc_prevent_allow_medium_removal(), and udi_msc_spc_testunitready().

static void udi_msc_spc_inquiry ( void  )

static

References scsi_inquiry_data::flags1, mem_name(), mem_removal(), scsi_inquiry_data::pq_pdt, scsi_inquiry_data::product_id, SCSI_INQ_ADDL_LEN, SCSI_INQ_DT_DIR_ACCESS, SCSI_INQ_PQ_CONNECTED, SCSI_INQ_REQ_CMDT, SCSI_INQ_REQ_EVPD, SCSI_INQ_RMB, SCSI_INQ_RSP_SPC2, SCSI_INQ_VER_SPC, UDC_DATA, udi_msc_cbw_validate(), udi_msc_csw_process(), udi_msc_data_send(), UDI_MSC_GLOBAL_PRODUCT_VERSION, UDI_MSC_GLOBAL_VENDOR_ID, udi_msc_sense_fail_cdb_invalid(), and USB_CBW_DIRECTION_IN.

Referenced by udi_msc_cbw_received().

static void udi_msc_spc_mode_sense ( bool  b_sense10 )

static

References cpu_to_be16, mem_wr_protect(), spc_control_page_info_execpt::mrie, spc_control_page_info_execpt::page_code, spc_control_page_info_execpt::page_length, SCSI_MS_MODE_ALL, SCSI_MS_MODE_INFEXP, SCSI_MS_SBC_WP, SPC_MP_INFEXP_MRIE_NO_SENSE, SPC_MP_INFEXP_PAGE_LENGTH, UDC_BSS, udi_msc_cbw_validate(), udi_msc_data_send(), and USB_CBW_DIRECTION_IN.

Referenced by udi_msc_cbw_received().

static void udi_msc_spc_prevent_allow_medium_removal ( void  )

static

References udi_msc_csw_process(), udi_msc_sense_fail_cdb_invalid(), and udi_msc_sense_pass().

Referenced by udi_msc_cbw_received().

static void udi_msc_spc_requestsense ( void  )

static

References udi_msc_cbw_validate(), udi_msc_data_send(), and USB_CBW_DIRECTION_IN.

Referenced by udi_msc_cbw_received().

static void udi_msc_spc_testunitready ( void  )

static

References udi_msc_csw_process(), udi_msc_sense_pass(), and udi_msc_spc_testunitready_global().

Referenced by udi_msc_cbw_received().

static bool udi_msc_spc_testunitready_global ( void  )

static

References CTRL_BUSY, CTRL_FAIL, CTRL_GOOD, CTRL_NO_PRESENT, mem_test_unit_ready(), udi_msc_sense_fail_busy_or_change(), udi_msc_sense_fail_hardware(), and udi_msc_sense_fail_not_present().

Referenced by udi_msc_spc_testunitready().

static void udi_msc_trans_ack ( udd_ep_status_t  status, iram_size_t  n, udd_ep_id_t  ep  )

static

References UDD_EP_TRANSFER_OK, and UNUSED.

Referenced by udi_msc_trans_block().

bool udi_msc_trans_block	(	bool	b_read,
		uint8_t *	block,
		iram_size_t	block_size,
		void(*)(udd_ep_status_t status, iram_size_t n, udd_ep_id_t ep)	callback
	)

Transfers data to/from USB MSC endpoints.

Parameters

b_read	Memory to USB, if true
block	Buffer on Internal RAM to send or fill
block_size	Buffer size to send or fill
callback	Function to call at the end of transfer. If NULL then the routine exit when transfer is finish.

Returns

1 if function was successfully done, otherwise 0.

References udd_ep_run(), UDI_MSC_EP_IN, UDI_MSC_EP_OUT, and udi_msc_trans_ack().

Referenced by virtual_usb_trans().