diff options
Diffstat (limited to 'src/class/msc/msc_device.c')
| -rw-r--r-- | src/class/msc/msc_device.c | 403 |
1 files changed, 199 insertions, 204 deletions
diff --git a/src/class/msc/msc_device.c b/src/class/msc/msc_device.c index f3f2e536e..194f4d3cb 100644 --- a/src/class/msc/msc_device.c +++ b/src/class/msc/msc_device.c @@ -71,6 +71,7 @@ CFG_TUSB_MEM_SECTION CFG_TUSB_MEM_ALIGN static uint8_t _mscd_buf[CFG_TUD_MSC_EP_ //--------------------------------------------------------------------+ // INTERNAL OBJECT & FUNCTION DECLARATION //--------------------------------------------------------------------+ +static int32_t proc_builtin_scsi(uint8_t lun, uint8_t const scsi_cmd[16], uint8_t* buffer, uint32_t bufsize); static void proc_read10_cmd(uint8_t rhport, mscd_interface_t* p_msc); static void proc_write10_cmd(uint8_t rhport, mscd_interface_t* p_msc); @@ -186,10 +187,14 @@ uint16_t mscd_open(uint8_t rhport, tusb_desc_interface_t const * itf_desc, uint1 return drv_len; } -// Handle class control request +// Invoked when a control transfer occurred on an interface of this class +// Driver response accordingly to the request and the transfer stage (setup/data/ack) // return false to stall control endpoint (e.g unsupported request) -bool mscd_control_request(uint8_t rhport, tusb_control_request_t const * p_request) +bool mscd_control_xfer_cb(uint8_t rhport, uint8_t stage, tusb_control_request_t const * p_request) { + // nothing to do with DATA & ACK stage + if (stage != CONTROL_STAGE_SETUP) return true; + // Handle class request only TU_VERIFY(p_request->bmRequestType_bit.type == TUSB_REQ_TYPE_CLASS); @@ -219,190 +224,6 @@ bool mscd_control_request(uint8_t rhport, tusb_control_request_t const * p_reque return true; } -// Invoked when class request DATA stage is finished. -// return false to stall control endpoint (e.g Host send non-sense DATA) -bool mscd_control_complete(uint8_t rhport, tusb_control_request_t const * request) -{ - (void) rhport; - (void) request; - - // nothing to do - return true; -} - -// return response's length (copied to buffer). Negative if it is not an built-in command or indicate Failed status (CSW) -// In case of a failed status, sense key must be set for reason of failure -int32_t proc_builtin_scsi(uint8_t lun, uint8_t const scsi_cmd[16], uint8_t* buffer, uint32_t bufsize) -{ - (void) bufsize; // TODO refractor later - int32_t resplen; - - switch ( scsi_cmd[0] ) - { - case SCSI_CMD_TEST_UNIT_READY: - resplen = 0; - if ( !tud_msc_test_unit_ready_cb(lun) ) - { - // Failed status response - resplen = - 1; - - // If sense key is not set by callback, default to Logical Unit Not Ready, Cause Not Reportable - if ( _mscd_itf.sense_key == 0 ) tud_msc_set_sense(lun, SCSI_SENSE_NOT_READY, 0x04, 0x00); - } - break; - - case SCSI_CMD_START_STOP_UNIT: - resplen = 0; - - if (tud_msc_start_stop_cb) - { - scsi_start_stop_unit_t const * start_stop = (scsi_start_stop_unit_t const *) scsi_cmd; - if ( !tud_msc_start_stop_cb(lun, start_stop->power_condition, start_stop->start, start_stop->load_eject) ) - { - // Failed status response - resplen = - 1; - - // If sense key is not set by callback, default to Logical Unit Not Ready, Cause Not Reportable - if ( _mscd_itf.sense_key == 0 ) tud_msc_set_sense(lun, SCSI_SENSE_NOT_READY, 0x04, 0x00); - } - } - break; - - case SCSI_CMD_READ_CAPACITY_10: - { - uint32_t block_count; - uint32_t block_size; - uint16_t block_size_u16; - - tud_msc_capacity_cb(lun, &block_count, &block_size_u16); - block_size = (uint32_t) block_size_u16; - - // Invalid block size/count from callback, possibly unit is not ready - // stall this request, set sense key to NOT READY - if (block_count == 0 || block_size == 0) - { - resplen = -1; - - // If sense key is not set by callback, default to Logical Unit Not Ready, Cause Not Reportable - if ( _mscd_itf.sense_key == 0 ) tud_msc_set_sense(lun, SCSI_SENSE_NOT_READY, 0x04, 0x00); - }else - { - scsi_read_capacity10_resp_t read_capa10; - - read_capa10.last_lba = tu_htonl(block_count-1); - read_capa10.block_size = tu_htonl(block_size); - - resplen = sizeof(read_capa10); - memcpy(buffer, &read_capa10, resplen); - } - } - break; - - case SCSI_CMD_READ_FORMAT_CAPACITY: - { - scsi_read_format_capacity_data_t read_fmt_capa = - { - .list_length = 8, - .block_num = 0, - .descriptor_type = 2, // formatted media - .block_size_u16 = 0 - }; - - uint32_t block_count; - uint16_t block_size; - - tud_msc_capacity_cb(lun, &block_count, &block_size); - - // Invalid block size/count from callback, possibly unit is not ready - // stall this request, set sense key to NOT READY - if (block_count == 0 || block_size == 0) - { - resplen = -1; - - // If sense key is not set by callback, default to Logical Unit Not Ready, Cause Not Reportable - if ( _mscd_itf.sense_key == 0 ) tud_msc_set_sense(lun, SCSI_SENSE_NOT_READY, 0x04, 0x00); - }else - { - read_fmt_capa.block_num = tu_htonl(block_count); - read_fmt_capa.block_size_u16 = tu_htons(block_size); - - resplen = sizeof(read_fmt_capa); - memcpy(buffer, &read_fmt_capa, resplen); - } - } - break; - - case SCSI_CMD_INQUIRY: - { - scsi_inquiry_resp_t inquiry_rsp = - { - .is_removable = 1, - .version = 2, - .response_data_format = 2, - }; - - // vendor_id, product_id, product_rev is space padded string - memset(inquiry_rsp.vendor_id , ' ', sizeof(inquiry_rsp.vendor_id)); - memset(inquiry_rsp.product_id , ' ', sizeof(inquiry_rsp.product_id)); - memset(inquiry_rsp.product_rev, ' ', sizeof(inquiry_rsp.product_rev)); - - tud_msc_inquiry_cb(lun, inquiry_rsp.vendor_id, inquiry_rsp.product_id, inquiry_rsp.product_rev); - - resplen = sizeof(inquiry_rsp); - memcpy(buffer, &inquiry_rsp, resplen); - } - break; - - case SCSI_CMD_MODE_SENSE_6: - { - scsi_mode_sense6_resp_t mode_resp = - { - .data_len = 3, - .medium_type = 0, - .write_protected = false, - .reserved = 0, - .block_descriptor_len = 0 // no block descriptor are included - }; - - bool writable = true; - if (tud_msc_is_writable_cb) { - writable = tud_msc_is_writable_cb(lun); - } - mode_resp.write_protected = !writable; - - resplen = sizeof(mode_resp); - memcpy(buffer, &mode_resp, resplen); - } - break; - - case SCSI_CMD_REQUEST_SENSE: - { - scsi_sense_fixed_resp_t sense_rsp = - { - .response_code = 0x70, - .valid = 1 - }; - - sense_rsp.add_sense_len = sizeof(scsi_sense_fixed_resp_t) - 8; - - sense_rsp.sense_key = _mscd_itf.sense_key; - sense_rsp.add_sense_code = _mscd_itf.add_sense_code; - sense_rsp.add_sense_qualifier = _mscd_itf.add_sense_qualifier; - - resplen = sizeof(sense_rsp); - memcpy(buffer, &sense_rsp, resplen); - - // Clear sense data after copy - tud_msc_set_sense(lun, 0, 0, 0); - } - break; - - default: resplen = -1; break; - } - - return resplen; -} - bool mscd_xfer_cb(uint8_t rhport, uint8_t ep_addr, xfer_result_t event, uint32_t xferred_bytes) { mscd_interface_t* p_msc = &_mscd_itf; @@ -592,6 +413,24 @@ bool mscd_xfer_cb(uint8_t rhport, uint8_t ep_addr, xfer_result_t event, uint32_t TU_LOG2(" SCSI Status: %u\r\n", p_csw->status); // TU_LOG2_MEM(p_csw, xferred_bytes, 2); + // Invoke complete callback if defined + // Note: There is racing issue with samd51 + qspi flash testing with arduino + // if complete_cb() is invoked after queuing the status. + switch(p_cbw->command[0]) + { + case SCSI_CMD_READ_10: + if ( tud_msc_read10_complete_cb ) tud_msc_read10_complete_cb(p_cbw->lun); + break; + + case SCSI_CMD_WRITE_10: + if ( tud_msc_write10_complete_cb ) tud_msc_write10_complete_cb(p_cbw->lun); + break; + + default: + if ( tud_msc_scsi_complete_cb ) tud_msc_scsi_complete_cb(p_cbw->lun, p_cbw->command); + break; + } + // Move to default CMD stage p_msc->stage = MSC_STAGE_CMD; @@ -615,24 +454,6 @@ bool mscd_xfer_cb(uint8_t rhport, uint8_t ep_addr, xfer_result_t event, uint32_t } else { - // Invoke complete callback if defined - // Note: There is racing issue with samd51 + qspi flash testing with arduino - // if complete_cb() is invoked after queuing the status. - switch(p_cbw->command[0]) - { - case SCSI_CMD_READ_10: - if ( tud_msc_read10_complete_cb ) tud_msc_read10_complete_cb(p_cbw->lun); - break; - - case SCSI_CMD_WRITE_10: - if ( tud_msc_write10_complete_cb ) tud_msc_write10_complete_cb(p_cbw->lun); - break; - - default: - if ( tud_msc_scsi_complete_cb ) tud_msc_scsi_complete_cb(p_cbw->lun, p_cbw->command); - break; - } - // Move to Status Sent stage p_msc->stage = MSC_STAGE_STATUS_SENT; @@ -647,6 +468,180 @@ bool mscd_xfer_cb(uint8_t rhport, uint8_t ep_addr, xfer_result_t event, uint32_t /*------------------------------------------------------------------*/ /* SCSI Command Process *------------------------------------------------------------------*/ + +// return response's length (copied to buffer). Negative if it is not an built-in command or indicate Failed status (CSW) +// In case of a failed status, sense key must be set for reason of failure +static int32_t proc_builtin_scsi(uint8_t lun, uint8_t const scsi_cmd[16], uint8_t* buffer, uint32_t bufsize) +{ + (void) bufsize; // TODO refractor later + int32_t resplen; + + switch ( scsi_cmd[0] ) + { + case SCSI_CMD_TEST_UNIT_READY: + resplen = 0; + if ( !tud_msc_test_unit_ready_cb(lun) ) + { + // Failed status response + resplen = - 1; + + // If sense key is not set by callback, default to Logical Unit Not Ready, Cause Not Reportable + if ( _mscd_itf.sense_key == 0 ) tud_msc_set_sense(lun, SCSI_SENSE_NOT_READY, 0x04, 0x00); + } + break; + + case SCSI_CMD_START_STOP_UNIT: + resplen = 0; + + if (tud_msc_start_stop_cb) + { + scsi_start_stop_unit_t const * start_stop = (scsi_start_stop_unit_t const *) scsi_cmd; + if ( !tud_msc_start_stop_cb(lun, start_stop->power_condition, start_stop->start, start_stop->load_eject) ) + { + // Failed status response + resplen = - 1; + + // If sense key is not set by callback, default to Logical Unit Not Ready, Cause Not Reportable + if ( _mscd_itf.sense_key == 0 ) tud_msc_set_sense(lun, SCSI_SENSE_NOT_READY, 0x04, 0x00); + } + } + break; + + case SCSI_CMD_READ_CAPACITY_10: + { + uint32_t block_count; + uint32_t block_size; + uint16_t block_size_u16; + + tud_msc_capacity_cb(lun, &block_count, &block_size_u16); + block_size = (uint32_t) block_size_u16; + + // Invalid block size/count from callback, possibly unit is not ready + // stall this request, set sense key to NOT READY + if (block_count == 0 || block_size == 0) + { + resplen = -1; + + // If sense key is not set by callback, default to Logical Unit Not Ready, Cause Not Reportable + if ( _mscd_itf.sense_key == 0 ) tud_msc_set_sense(lun, SCSI_SENSE_NOT_READY, 0x04, 0x00); + }else + { + scsi_read_capacity10_resp_t read_capa10; + + read_capa10.last_lba = tu_htonl(block_count-1); + read_capa10.block_size = tu_htonl(block_size); + + resplen = sizeof(read_capa10); + memcpy(buffer, &read_capa10, resplen); + } + } + break; + + case SCSI_CMD_READ_FORMAT_CAPACITY: + { + scsi_read_format_capacity_data_t read_fmt_capa = + { + .list_length = 8, + .block_num = 0, + .descriptor_type = 2, // formatted media + .block_size_u16 = 0 + }; + + uint32_t block_count; + uint16_t block_size; + + tud_msc_capacity_cb(lun, &block_count, &block_size); + + // Invalid block size/count from callback, possibly unit is not ready + // stall this request, set sense key to NOT READY + if (block_count == 0 || block_size == 0) + { + resplen = -1; + + // If sense key is not set by callback, default to Logical Unit Not Ready, Cause Not Reportable + if ( _mscd_itf.sense_key == 0 ) tud_msc_set_sense(lun, SCSI_SENSE_NOT_READY, 0x04, 0x00); + }else + { + read_fmt_capa.block_num = tu_htonl(block_count); + read_fmt_capa.block_size_u16 = tu_htons(block_size); + + resplen = sizeof(read_fmt_capa); + memcpy(buffer, &read_fmt_capa, resplen); + } + } + break; + + case SCSI_CMD_INQUIRY: + { + scsi_inquiry_resp_t inquiry_rsp = + { + .is_removable = 1, + .version = 2, + .response_data_format = 2, + }; + + // vendor_id, product_id, product_rev is space padded string + memset(inquiry_rsp.vendor_id , ' ', sizeof(inquiry_rsp.vendor_id)); + memset(inquiry_rsp.product_id , ' ', sizeof(inquiry_rsp.product_id)); + memset(inquiry_rsp.product_rev, ' ', sizeof(inquiry_rsp.product_rev)); + + tud_msc_inquiry_cb(lun, inquiry_rsp.vendor_id, inquiry_rsp.product_id, inquiry_rsp.product_rev); + + resplen = sizeof(inquiry_rsp); + memcpy(buffer, &inquiry_rsp, resplen); + } + break; + + case SCSI_CMD_MODE_SENSE_6: + { + scsi_mode_sense6_resp_t mode_resp = + { + .data_len = 3, + .medium_type = 0, + .write_protected = false, + .reserved = 0, + .block_descriptor_len = 0 // no block descriptor are included + }; + + bool writable = true; + if (tud_msc_is_writable_cb) { + writable = tud_msc_is_writable_cb(lun); + } + mode_resp.write_protected = !writable; + + resplen = sizeof(mode_resp); + memcpy(buffer, &mode_resp, resplen); + } + break; + + case SCSI_CMD_REQUEST_SENSE: + { + scsi_sense_fixed_resp_t sense_rsp = + { + .response_code = 0x70, + .valid = 1 + }; + + sense_rsp.add_sense_len = sizeof(scsi_sense_fixed_resp_t) - 8; + + sense_rsp.sense_key = _mscd_itf.sense_key; + sense_rsp.add_sense_code = _mscd_itf.add_sense_code; + sense_rsp.add_sense_qualifier = _mscd_itf.add_sense_qualifier; + + resplen = sizeof(sense_rsp); + memcpy(buffer, &sense_rsp, resplen); + + // Clear sense data after copy + tud_msc_set_sense(lun, 0, 0, 0); + } + break; + + default: resplen = -1; break; + } + + return resplen; +} + static void proc_read10_cmd(uint8_t rhport, mscd_interface_t* p_msc) { msc_cbw_t const * p_cbw = &p_msc->cbw; |