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-rw-r--r--thirdparty/nRF5_SDK_15.0.0_a53641a/components/libraries/usbd/class/msc/app_usbd_msc.c2365
-rw-r--r--thirdparty/nRF5_SDK_15.0.0_a53641a/components/libraries/usbd/class/msc/app_usbd_msc.h193
-rw-r--r--thirdparty/nRF5_SDK_15.0.0_a53641a/components/libraries/usbd/class/msc/app_usbd_msc_desc.h104
-rw-r--r--thirdparty/nRF5_SDK_15.0.0_a53641a/components/libraries/usbd/class/msc/app_usbd_msc_internal.h259
-rw-r--r--thirdparty/nRF5_SDK_15.0.0_a53641a/components/libraries/usbd/class/msc/app_usbd_msc_scsi.h329
-rw-r--r--thirdparty/nRF5_SDK_15.0.0_a53641a/components/libraries/usbd/class/msc/app_usbd_msc_types.h141
6 files changed, 3391 insertions, 0 deletions
diff --git a/thirdparty/nRF5_SDK_15.0.0_a53641a/components/libraries/usbd/class/msc/app_usbd_msc.c b/thirdparty/nRF5_SDK_15.0.0_a53641a/components/libraries/usbd/class/msc/app_usbd_msc.c
new file mode 100644
index 0000000..a19de11
--- /dev/null
+++ b/thirdparty/nRF5_SDK_15.0.0_a53641a/components/libraries/usbd/class/msc/app_usbd_msc.c
@@ -0,0 +1,2365 @@
+/**
+ * Copyright (c) 2016 - 2018, Nordic Semiconductor ASA
+ *
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form, except as embedded into a Nordic
+ * Semiconductor ASA integrated circuit in a product or a software update for
+ * such product, must reproduce the above copyright notice, this list of
+ * conditions and the following disclaimer in the documentation and/or other
+ * materials provided with the distribution.
+ *
+ * 3. Neither the name of Nordic Semiconductor ASA nor the names of its
+ * contributors may be used to endorse or promote products derived from this
+ * software without specific prior written permission.
+ *
+ * 4. This software, with or without modification, must only be used with a
+ * Nordic Semiconductor ASA integrated circuit.
+ *
+ * 5. Any software provided in binary form under this license must not be reverse
+ * engineered, decompiled, modified and/or disassembled.
+ *
+ * THIS SOFTWARE IS PROVIDED BY NORDIC SEMICONDUCTOR ASA "AS IS" AND ANY EXPRESS
+ * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY, NONINFRINGEMENT, AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL NORDIC SEMICONDUCTOR ASA OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
+ * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+#include "sdk_common.h"
+#if NRF_MODULE_ENABLED(APP_USBD_MSC)
+
+#include <string.h>
+#include <ctype.h>
+#include "app_usbd.h"
+#include "app_usbd_msc.h"
+#include "app_usbd_string_desc.h"
+
+/**
+ * @defgroup app_usbd_msc_internal USBD MSC internals
+ * @{
+ * @ingroup app_usbd_msc
+ * @internal
+ */
+
+STATIC_ASSERT(sizeof(app_usbd_scsi_cmd_requestsense_t) == 6);
+STATIC_ASSERT(sizeof(app_usbd_scsi_cmd_requestsense_resp_t) == 18);
+STATIC_ASSERT(sizeof(app_usbd_scsi_cmd_inquiry_t) == 6);
+STATIC_ASSERT(sizeof(app_usbd_scsi_cmd_inquiry_resp_t) == 36);
+STATIC_ASSERT(sizeof(app_usbd_scsi_cmd_read6_t) == 6);
+STATIC_ASSERT(sizeof(app_usbd_scsi_cmd_write6_t) == 6);
+STATIC_ASSERT(sizeof(app_usbd_scsi_cmd_modesense6_t) == 6);
+STATIC_ASSERT(sizeof(app_usbd_scsi_cmd_modesense6_resp_t) == 4);
+STATIC_ASSERT(sizeof(app_usbd_scsi_cmd_readcapacity10_t) == 10);
+STATIC_ASSERT(sizeof(app_usbd_scsi_cmd_readcapacity10_resp_t) == 8);
+STATIC_ASSERT(sizeof(app_usbd_scsi_cmd_read10_t) == 10);
+STATIC_ASSERT(sizeof(app_usbd_scsi_cmd_write10_t) == 10);
+STATIC_ASSERT(sizeof(app_usbd_scsi_cmd_modesense10_t) == 10);
+STATIC_ASSERT(sizeof(app_usbd_scsi_cmd_modesense10_resp_t) == 8);
+
+STATIC_ASSERT(sizeof(app_usbd_msc_cbw_t) == 31);
+STATIC_ASSERT(sizeof(app_usbd_msc_csw_t) == 13);
+
+#define NRF_LOG_MODULE_NAME usbd_msc
+
+#if APP_USBD_MSC_CONFIG_LOG_ENABLED
+#define NRF_LOG_LEVEL APP_USBD_MSC_CONFIG_LOG_LEVEL
+#define NRF_LOG_INFO_COLOR APP_USBD_MSC_CONFIG_INFO_COLOR
+#define NRF_LOG_DEBUG_COLOR APP_USBD_MSC_CONFIG_DEBUG_COLOR
+#else // APP_USBD_MSC_CONFIG_LOG_ENABLED
+#define NRF_LOG_LEVEL 0
+#endif // APP_USBD_MSC_CONFIG_LOG_ENABLED
+#include "nrf_log.h"
+NRF_LOG_MODULE_REGISTER();
+
+#define APP_USBD_MSC_IFACE_IDX 0 /**< Mass storage class interface index */
+#define APP_USBD_MSC_EPIN_IDX 0 /**< Mass storage class endpoint IN index */
+#define APP_USBD_MSC_EPOUT_IDX 1 /**< Mass storage class endpoint OUT index */
+
+/**
+ * @brief Set request buffer busy flag
+ *
+ * @param[in] val Bitmask to set
+ * @param[in] id Buffer id
+ * */
+#define APP_USBD_MSC_REQ_BUSY_SET(val, id) SET_BIT(val, id)
+
+/**
+ * @brief Clear request buffer busy flag
+ *
+ * @param[in] val Bitmask to set
+ * @param[in] id Buffer id
+ * */
+#define APP_USBD_MSC_REQ_BUSY_CLR(val, id) CLR_BIT(val, id)
+
+#define APP_USBD_MSC_REQ_BUSY_FULL_MASK (0x03) /**< Request busy mask */
+
+static void msc_blockdev_ev_handler(nrf_block_dev_t const * p_blk_dev,
+ nrf_block_dev_event_t const * p_event);
+
+/**
+ * @brief Auxiliary function to access MSC instance data
+ *
+ * @param[in] p_inst Class instance data
+ *
+ * @return MSC instance data @ref app_usbd_msc_t
+ */
+static inline app_usbd_msc_t const * msc_get(app_usbd_class_inst_t const * p_inst)
+{
+ ASSERT(p_inst != NULL);
+ return (app_usbd_msc_t const *)p_inst;
+}
+
+
+/**
+ * @brief Auxiliary function to access MSC context data
+ *
+ * @param[in] p_msc MSC instance data
+ * @return MSC context data @ref app_usbd_msc_ctx_t
+ */
+static inline app_usbd_msc_ctx_t * msc_ctx_get(app_usbd_msc_t const * p_msc)
+{
+ ASSERT(p_msc != NULL);
+ ASSERT(p_msc->specific.p_data != NULL);
+ return &p_msc->specific.p_data->ctx;
+}
+
+
+/**
+ * @brief Auxiliary function to access MSC IN endpoint address
+ *
+ * @param[in] p_inst Class instance data
+ *
+ * @return IN endpoint address
+ */
+static inline nrf_drv_usbd_ep_t ep_in_addr_get(app_usbd_class_inst_t const * p_inst)
+{
+ app_usbd_class_iface_conf_t const * class_iface;
+
+ class_iface = app_usbd_class_iface_get(p_inst, APP_USBD_MSC_IFACE_IDX);
+
+ app_usbd_class_ep_conf_t const * ep_cfg;
+ ep_cfg = app_usbd_class_iface_ep_get(class_iface, APP_USBD_MSC_EPIN_IDX);
+
+ return app_usbd_class_ep_address_get(ep_cfg);
+}
+
+
+/**
+ * @brief Auxiliary function to access MSC OUT endpoint address
+ *
+ * @param[in] p_inst Class instance data
+ *
+ * @return OUT endpoint address
+ */
+static inline nrf_drv_usbd_ep_t ep_out_addr_get(app_usbd_class_inst_t const * p_inst)
+{
+ app_usbd_class_iface_conf_t const * class_iface;
+
+ class_iface = app_usbd_class_iface_get(p_inst, APP_USBD_MSC_IFACE_IDX);
+
+ app_usbd_class_ep_conf_t const * ep_cfg;
+ ep_cfg = app_usbd_class_iface_ep_get(class_iface, APP_USBD_MSC_EPOUT_IDX);
+
+ return app_usbd_class_ep_address_get(ep_cfg);
+}
+
+
+/**
+ * @brief Command Block Wrapper trigger
+ *
+ * @param[in] p_inst Generic class instance
+ * @param[in] state Next state transition
+ *
+ * @return Standard error code
+ * */
+static ret_code_t cbw_wait_start(app_usbd_class_inst_t const * p_inst)
+{
+ app_usbd_msc_t const * p_msc = msc_get(p_inst);
+ app_usbd_msc_ctx_t * p_msc_ctx = msc_ctx_get(p_msc);
+
+ nrf_drv_usbd_ep_t ep_addr_out = ep_out_addr_get(p_inst);
+
+ NRF_LOG_DEBUG("cbw_wait_start");
+ memset(&p_msc_ctx->cbw, 0, sizeof(app_usbd_msc_cbw_t));
+ NRF_DRV_USBD_TRANSFER_OUT(cbw, &p_msc_ctx->cbw, sizeof(app_usbd_msc_cbw_t));
+ ret_code_t ret = app_usbd_ep_transfer(ep_addr_out, &cbw);
+ if (ret == NRF_SUCCESS)
+ {
+ p_msc_ctx->state = APP_USBD_MSC_STATE_CBW;
+ }
+
+ return ret;
+}
+
+
+/**
+ * @brief Command Status Wrapper trigger
+ *
+ * @param[in] p_inst Generic class instance
+ * @param[in] state Next state transition
+ *
+ * @return Standard error code
+ * */
+static ret_code_t csw_wait_start(app_usbd_class_inst_t const * p_inst, uint8_t status)
+{
+ app_usbd_msc_t const * p_msc = msc_get(p_inst);
+ app_usbd_msc_ctx_t * p_msc_ctx = msc_ctx_get(p_msc);
+
+ nrf_drv_usbd_ep_t ep_addr_in = ep_in_addr_get(p_inst);
+
+ memset(&p_msc_ctx->csw, 0, sizeof(app_usbd_msc_csw_t));
+ memcpy(p_msc_ctx->csw.signature, APP_USBD_MSC_CSW_SIGNATURE, sizeof(p_msc_ctx->csw.signature));
+ memcpy(p_msc_ctx->csw.tag, p_msc_ctx->cbw.tag, sizeof(p_msc_ctx->csw.tag));
+ memcpy(p_msc_ctx->csw.residue, &p_msc_ctx->current.residue, sizeof(uint32_t));
+ p_msc_ctx->csw.status = status;
+
+ NRF_DRV_USBD_TRANSFER_IN(csw, &p_msc_ctx->csw, sizeof(app_usbd_msc_csw_t));
+ ret_code_t ret = app_usbd_ep_transfer(ep_addr_in, &csw);
+ if (ret == NRF_SUCCESS)
+ {
+ p_msc_ctx->state = APP_USBD_MSC_STATE_CSW;
+ }
+
+ return ret;
+}
+
+
+/**
+ * @brief IN transfer trigger
+ *
+ * @param[in] p_inst Generic class instance
+ * @param[in] p_buff IN transfer data buffer
+ * @param[in] size IN transfer size
+ * @param[in] state Next state transition
+ *
+ * @return Standard error code
+ * */
+static ret_code_t transfer_in_start(app_usbd_class_inst_t const * p_inst,
+ void const * p_buff,
+ size_t size,
+ app_usbd_msc_state_t state)
+{
+ app_usbd_msc_t const * p_msc = msc_get(p_inst);
+ app_usbd_msc_ctx_t * p_msc_ctx = msc_ctx_get(p_msc);
+
+ NRF_LOG_DEBUG("transfer_in_start: p_buff: %p, size: %u", (uint32_t)p_buff, size);
+
+ nrf_drv_usbd_ep_t ep_addr_in = ep_in_addr_get(p_inst);
+
+ NRF_DRV_USBD_TRANSFER_IN(resp, p_buff, size);
+ ret_code_t ret = app_usbd_ep_transfer(ep_addr_in, &resp);
+ if (ret == NRF_SUCCESS)
+ {
+ p_msc_ctx->state = state;
+ }
+ return ret;
+}
+
+
+/**
+ * @brief MSC reset request handler @ref APP_USBD_MSC_REQ_BULK_RESET
+ *
+ * @param[in] p_inst Generic class instance
+ *
+ * */
+static void bulk_ep_reset(app_usbd_class_inst_t const * p_inst)
+{
+ nrf_drv_usbd_ep_t ep_addr_in = ep_in_addr_get(p_inst);
+ nrf_drv_usbd_ep_t ep_addr_out = ep_out_addr_get(p_inst);
+
+ nrf_drv_usbd_ep_abort(ep_addr_in);
+ nrf_drv_usbd_ep_abort(ep_addr_out);
+}
+
+
+/**
+ * @brief OUT transfer trigger
+ *
+ * @param[in] p_inst Generic class instance
+ * @param[in] p_buff OUT transfer data buffer
+ * @param[in] size OUT transfer size
+ * @param[in] state Next state transition
+ *
+ * @return Standard error code
+ * */
+static ret_code_t transfer_out_start(app_usbd_class_inst_t const * p_inst,
+ void * p_buff,
+ size_t size,
+ app_usbd_msc_state_t state)
+{
+ app_usbd_msc_t const * p_msc = msc_get(p_inst);
+ app_usbd_msc_ctx_t * p_msc_ctx = msc_ctx_get(p_msc);
+
+ NRF_LOG_DEBUG("transfer_out_start: p_buff: %p, size: %u", (uint32_t)p_buff, size);
+ nrf_drv_usbd_ep_t ep_addr_out = ep_out_addr_get(p_inst);
+
+ NRF_DRV_USBD_TRANSFER_OUT(resp, p_buff, size);
+ ret_code_t ret = app_usbd_ep_transfer(ep_addr_out, &resp);
+ if (ret == NRF_SUCCESS)
+ {
+ p_msc_ctx->state = state;
+ }
+ return ret;
+}
+
+
+/**
+ * @brief Generic function to stall communication endpoints and mark error state
+ *
+ * Function used internally to stall all communication endpoints and mark current state.
+ *
+ * @param p_inst Generic class instance
+ * @param state State to set
+ */
+static void status_generic_error_stall(app_usbd_class_inst_t const * p_inst,
+ app_usbd_msc_state_t state)
+{
+ app_usbd_msc_t const * p_msc = msc_get(p_inst);
+ app_usbd_msc_ctx_t * p_msc_ctx = msc_ctx_get(p_msc);
+
+ nrf_drv_usbd_ep_t ep_in = ep_in_addr_get(p_inst);
+ nrf_drv_usbd_ep_t ep_out = ep_out_addr_get(p_inst);
+
+ nrf_drv_usbd_ep_stall(ep_in);
+ nrf_drv_usbd_ep_stall(ep_out);
+ nrf_drv_usbd_ep_abort(ep_in);
+ nrf_drv_usbd_ep_abort(ep_out);
+
+ p_msc_ctx->state = state;
+}
+
+
+/**
+ * @brief Start status stage of unsupported SCSI command
+ *
+ * @param[in,out] p_inst Generic class instance
+ *
+ * @return Standard error code
+ *
+ * @sa status_generic_error_stall
+ */
+static ret_code_t status_unsupported_start(app_usbd_class_inst_t const * p_inst)
+{
+ app_usbd_msc_t const * p_msc = msc_get(p_inst);
+ app_usbd_msc_ctx_t * p_msc_ctx = msc_ctx_get(p_msc);
+ bool data_stage = uint32_decode(p_msc_ctx->cbw.datlen) != 0;
+
+ if (!data_stage)
+ {
+ /* Try to transfer the response now */
+ ret_code_t ret;
+ ret = csw_wait_start(p_inst, APP_USBD_MSC_CSW_STATUS_FAIL);
+ if (ret == NRF_SUCCESS)
+ {
+ return ret;
+ }
+ }
+
+ /* Cannot transfer failed response in current command - stall the endpoints and postpone the answer */
+ status_generic_error_stall(p_inst, APP_USBD_MSC_STATE_UNSUPPORTED);
+ if (data_stage)
+ {
+ if (!(p_msc_ctx->cbw.flags & APP_USBD_MSC_CBW_DIRECTION_IN))
+ {
+ nrf_drv_usbd_transfer_out_drop(ep_out_addr_get(p_inst));
+ }
+ /* Unsupported command so we did not process any data - mark it in current residue value */
+ p_msc_ctx->current.residue = uint32_decode(p_msc_ctx->cbw.datlen);
+ }
+ return NRF_SUCCESS;
+}
+
+
+/**
+ * @brief Start status stage of CBW invalid
+ *
+ * @param[in,out] p_inst Generic class instance
+ *
+ * @sa status_generic_error_stall
+ */
+static void status_cbwinvalid_start(app_usbd_class_inst_t const * p_inst)
+{
+ status_generic_error_stall(p_inst, APP_USBD_MSC_STATE_CBW_INVALID);
+}
+
+
+/**
+ * @brief Start status stage of internal device error
+ *
+ * Kind of error that requires bulk reset but does not stall endpoint permanently - the correct
+ * answer is possible.
+ *
+ * @param[in] p_inst Generic class instance
+ *
+ * @sa status_generic_error_stall
+ */
+static void status_deverror_start(app_usbd_class_inst_t const * p_inst)
+{
+ status_generic_error_stall(p_inst, APP_USBD_MSC_STATE_DEVICE_ERROR);
+}
+
+
+/**
+ * @brief Internal SETUP standard IN request handler
+ *
+ * @param[in] p_inst Generic class instance
+ * @param[in] p_setup_ev Setup event
+ *
+ * @return Standard error code
+ * @retval NRF_SUCCESS if request handled correctly
+ * @retval NRF_ERROR_NOT_SUPPORTED if request is not supported
+ */
+static ret_code_t setup_req_std_in(app_usbd_class_inst_t const * p_inst,
+ app_usbd_setup_evt_t const * p_setup_ev)
+{
+ /* Only Get Descriptor standard IN request is supported by MSC class */
+ if ((app_usbd_setup_req_rec(p_setup_ev->setup.bmRequestType) == APP_USBD_SETUP_REQREC_INTERFACE)
+ &&
+ (p_setup_ev->setup.bmRequest == APP_USBD_SETUP_STDREQ_GET_DESCRIPTOR))
+ {
+ size_t dsc_len = 0;
+ size_t max_size;
+
+ uint8_t * p_trans_buff = app_usbd_core_setup_transfer_buff_get(&max_size);
+
+ /* Try to find descriptor in class internals*/
+ ret_code_t ret = app_usbd_class_descriptor_find(
+ p_inst,
+ p_setup_ev->setup.wValue.hb,
+ p_setup_ev->setup.wValue.lb,
+ p_trans_buff,
+ &dsc_len);
+
+ if (ret != NRF_ERROR_NOT_FOUND)
+ {
+ ASSERT(dsc_len < NRF_DRV_USBD_EPSIZE);
+ return app_usbd_core_setup_rsp(&(p_setup_ev->setup), p_trans_buff, dsc_len);
+ }
+ }
+ return NRF_ERROR_NOT_SUPPORTED;
+}
+
+
+/**
+ * @brief Internal SETUP standard OUT request handler
+ *
+ * @param[in] p_inst Generic class instance
+ * @param[in] p_setup_ev Setup event
+ *
+ * @return Standard error code
+ * @retval NRF_SUCCESS if request handled correctly
+ * @retval NRF_ERROR_NOT_SUPPORTED if request is not supported
+ * @retval NRF_ERROR_FORBIDDEN if endpoint stall cannot be cleared because of internal state
+ */
+static ret_code_t setup_req_std_out(app_usbd_class_inst_t const * p_inst,
+ app_usbd_setup_evt_t const * p_setup_ev)
+{
+ app_usbd_msc_t const * p_msc = msc_get(p_inst);
+ app_usbd_msc_ctx_t * p_msc_ctx = msc_ctx_get(p_msc);
+
+ app_usbd_setup_reqrec_t req_rec = app_usbd_setup_req_rec(p_setup_ev->setup.bmRequestType);
+
+ if ((req_rec == APP_USBD_SETUP_REQREC_ENDPOINT) &&
+ (p_setup_ev->setup.bmRequest == APP_USBD_SETUP_STDREQ_CLEAR_FEATURE) &&
+ (p_setup_ev->setup.wValue.w == APP_USBD_SETUP_STDFEATURE_ENDPOINT_HALT))
+ {
+ if (p_msc_ctx->state == APP_USBD_MSC_STATE_CBW_INVALID)
+ {
+ return NRF_ERROR_FORBIDDEN;
+ }
+ ret_code_t ret = NRF_SUCCESS;
+ /* Clearing endpoint here. It is done normally inside app_usbd, but we are overwritting this functionality */
+ nrf_drv_usbd_ep_t ep_addr = (nrf_drv_usbd_ep_t)(p_setup_ev->setup.wIndex.lb);
+ nrf_drv_usbd_ep_dtoggle_clear(ep_addr);
+ nrf_drv_usbd_ep_stall_clear(ep_addr);
+ if (NRF_USBD_EPIN_CHECK(ep_addr))
+ {
+ switch (p_msc_ctx->state)
+ {
+ case APP_USBD_MSC_STATE_UNSUPPORTED:
+ {
+ nrf_drv_usbd_ep_stall_clear(ep_out_addr_get(p_inst));
+ /*Unsupported command handle: status stage*/
+ ret = csw_wait_start(p_inst, APP_USBD_MSC_CSW_STATUS_FAIL);
+ if (ret != NRF_SUCCESS)
+ {
+ NRF_LOG_ERROR("Unexpected csw_wait_start on ep clear: %d", ret);
+ }
+ break;
+ }
+
+ case APP_USBD_MSC_STATE_DEVICE_ERROR:
+ {
+ nrf_drv_usbd_ep_stall_clear(ep_out_addr_get(p_inst));
+ /*Unsupported command handle: status stage*/
+ ret = csw_wait_start(p_inst, APP_USBD_MSC_CSW_STATUS_PE);
+ if (ret != NRF_SUCCESS)
+ {
+ NRF_LOG_ERROR("Unexpected csw_wait_start on ep clear: %d", ret);
+ }
+ break;
+ }
+
+ default:
+ break;
+ }
+ }
+ return ret;
+ }
+ return NRF_ERROR_NOT_SUPPORTED;
+}
+
+
+/**
+ * @brief Internal SETUP class IN request handler
+ *
+ * @param[in] p_inst Generic class instance
+ * @param[in] p_setup_ev Setup event
+ *
+ * @return Standard error code
+ * @retval NRF_SUCCESS if request handled correctly
+ * @retval NRF_ERROR_NOT_SUPPORTED if request is not supported
+ */
+static ret_code_t setup_req_class_in(app_usbd_class_inst_t const * p_inst,
+ app_usbd_setup_evt_t const * p_setup_ev)
+{
+ app_usbd_msc_t const * p_msc = msc_get(p_inst);
+
+ switch (p_setup_ev->setup.bmRequest)
+ {
+ case APP_USBD_MSC_REQ_GET_MAX_LUN:
+ {
+
+ if (p_setup_ev->setup.wValue.w != 0)
+ {
+ break;
+ }
+
+ if (p_setup_ev->setup.wLength.w != 1)
+ {
+ break;
+ }
+
+ size_t tx_size;
+ uint16_t * p_tx_buff = app_usbd_core_setup_transfer_buff_get(&tx_size);
+ ASSERT(p_msc->specific.inst.block_devs_count != 0);
+ p_tx_buff[0] = p_msc->specific.inst.block_devs_count - 1;
+
+ ret_code_t ret = cbw_wait_start(p_inst);
+ UNUSED_VARIABLE(ret);
+ return app_usbd_core_setup_rsp(&(p_setup_ev->setup), p_tx_buff, sizeof(uint8_t));
+ }
+
+ default:
+ break;
+
+ }
+
+ return NRF_ERROR_NOT_SUPPORTED;
+}
+
+
+/**
+ * @brief Internal SETUP class OUT request handler
+ *
+ * @param[in] p_inst Generic class instance
+ * @param[in] p_setup_ev Setup event
+ *
+ * @return Standard error code
+ * @retval NRF_SUCCESS if request handled correctly
+ * @retval NRF_ERROR_NOT_SUPPORTED if request is not supported
+ */
+static ret_code_t setup_req_class_out(app_usbd_class_inst_t const * p_inst,
+ app_usbd_setup_evt_t const * p_setup_ev)
+{
+ app_usbd_msc_t const * p_msc = msc_get(p_inst);
+ app_usbd_msc_ctx_t * p_msc_ctx = msc_ctx_get(p_msc);
+
+ switch (p_setup_ev->setup.bmRequest)
+ {
+ case APP_USBD_MSC_REQ_BULK_RESET:
+ {
+ if (p_setup_ev->setup.wValue.w != 0)
+ {
+ break;
+ }
+
+ if (p_setup_ev->setup.wLength.w != 0)
+ {
+ break;
+ }
+
+ /*
+ * Reset internal state to be ready for next CBW
+ */
+ NRF_LOG_DEBUG("bulk ep reset");
+ bulk_ep_reset(p_inst);
+
+ if (p_msc_ctx->state != APP_USBD_MSC_STATE_CBW)
+ {
+ ret_code_t ret = cbw_wait_start(p_inst);
+ UNUSED_VARIABLE(ret);
+ }
+
+ return NRF_SUCCESS;
+ }
+
+ default:
+ break;
+ }
+
+ return NRF_ERROR_NOT_SUPPORTED;
+}
+
+
+/**
+ * @brief Control endpoint handle
+ *
+ * @param[in] p_inst Generic class instance
+ * @param[in] p_setup_ev Setup event
+ *
+ * @return Standard error code
+ * @retval NRF_SUCCESS if request handled correctly
+ * @retval NRF_ERROR_NOT_SUPPORTED if request is not supported
+ */
+static ret_code_t setup_event_handler(app_usbd_class_inst_t const * p_inst,
+ app_usbd_setup_evt_t const * p_setup_ev)
+{
+ ASSERT(p_inst != NULL);
+ ASSERT(p_setup_ev != NULL);
+
+ if (app_usbd_setup_req_dir(p_setup_ev->setup.bmRequestType) == APP_USBD_SETUP_REQDIR_IN)
+ {
+ switch (app_usbd_setup_req_typ(p_setup_ev->setup.bmRequestType))
+ {
+ case APP_USBD_SETUP_REQTYPE_STD:
+ return setup_req_std_in(p_inst, p_setup_ev);
+
+ case APP_USBD_SETUP_REQTYPE_CLASS:
+ return setup_req_class_in(p_inst, p_setup_ev);
+
+ default:
+ break;
+ }
+ }
+ else /* APP_USBD_SETUP_REQDIR_OUT */
+ {
+ switch (app_usbd_setup_req_typ(p_setup_ev->setup.bmRequestType))
+ {
+ case APP_USBD_SETUP_REQTYPE_STD:
+ return setup_req_std_out(p_inst, p_setup_ev);
+
+ case APP_USBD_SETUP_REQTYPE_CLASS:
+ return setup_req_class_out(p_inst, p_setup_ev);
+
+ default:
+ break;
+ }
+ }
+
+ return NRF_ERROR_NOT_SUPPORTED;
+}
+
+
+/**
+ * @brief Handle read6/read10 command data stage
+ *
+ * @param[in] p_inst Generic class instance
+ *
+ * @return Standard error code
+ * @retval NRF_SUCCESS if request handled correctly
+ * @retval NRF_ERROR_NOT_SUPPORTED if request is not supported
+ */
+static ret_code_t state_data_in_handle(app_usbd_class_inst_t const * p_inst)
+{
+ app_usbd_msc_t const * p_msc = msc_get(p_inst);
+ app_usbd_msc_ctx_t * p_msc_ctx = msc_ctx_get(p_msc);
+
+ ret_code_t ret = NRF_SUCCESS;
+
+ p_msc_ctx->current.trans_in_progress = false;
+ APP_USBD_MSC_REQ_BUSY_CLR(p_msc_ctx->current.req_busy_mask, p_msc_ctx->current.trans_req_id);
+
+ if (p_msc_ctx->current.blk_datasize == 0 && p_msc_ctx->current.req_busy_mask == 0)
+ {
+ p_msc_ctx->current.blk_idx = p_msc_ctx->current.blk_size = 0;
+ ret = csw_wait_start(p_inst, p_msc_ctx->current.csw_status);
+ return ret;
+ }
+
+ ASSERT(p_msc_ctx->current.blk_size != 0);
+
+ if (p_msc_ctx->current.req_busy_mask == 0)
+ {
+ nrf_block_dev_t const * p_blkd =
+ p_msc->specific.inst.pp_block_devs[p_msc_ctx->current.lun];
+
+ /*Trigger new block read request*/
+ p_msc_ctx->current.workbuff_pos ^= p_msc->specific.inst.block_buff_size;
+ uint32_t req_pos = p_msc_ctx->current.workbuff_pos != 0 ? 1 : 0;
+ APP_USBD_MSC_REQ_BUSY_SET(p_msc_ctx->current.req_busy_mask, req_pos);
+
+ NRF_BLOCK_DEV_REQUEST(req,
+ p_msc_ctx->current.blk_idx,
+ p_msc_ctx->current.blk_count,
+ ((uint8_t *)p_msc->specific.inst.p_block_buff +
+ p_msc_ctx->current.workbuff_pos));
+
+ NRF_LOG_DEBUG("nrf_blk_dev_read_req 3: id: %u, count: %u, left: %u, ptr: %p",
+ req.blk_id,
+ req.blk_count,
+ p_msc_ctx->current.blk_datasize,
+ (uint32_t)req.p_buff);
+
+ ret = nrf_blk_dev_read_req(p_blkd, &req);
+ NRF_LOG_DEBUG("nrf_blk_dev_read_req 3: ret: %u", ret);
+ return ret;
+ }
+
+ uint32_t blk_size = p_msc_ctx->current.blk_size;
+ p_msc_ctx->current.trans_req_id ^= 1;
+
+ nrf_block_req_t * p_req = &p_msc_ctx->current.req;
+ if (p_req->p_buff == NULL)
+ {
+ p_msc_ctx->current.trans_req_id ^= 1;
+ return NRF_SUCCESS;
+ }
+
+ ret = transfer_in_start(p_inst,
+ p_req->p_buff,
+ p_req->blk_count * blk_size,
+ APP_USBD_MSC_STATE_DATA_IN);
+
+ if (ret == NRF_SUCCESS)
+ {
+ /*Clear processed block request.*/
+ memset(p_req, 0, sizeof(nrf_block_req_t));
+ p_msc_ctx->current.trans_in_progress = true;
+ }
+
+ return ret;
+}
+
+
+/**
+ * @brief Endpoint IN event handler
+ *
+ * @param[in] p_inst Generic class instance
+ * @param[in] p_setup_ev Setup event
+ *
+ * @return Standard error code
+ * @retval NRF_SUCCESS if request handled correctly
+ * @retval NRF_ERROR_NOT_SUPPORTED if request is not supported
+ */
+static ret_code_t endpoint_in_event_handler(app_usbd_class_inst_t const * p_inst,
+ app_usbd_complex_evt_t const * p_event)
+{
+ app_usbd_msc_t const * p_msc = msc_get(p_inst);
+ app_usbd_msc_ctx_t * p_msc_ctx = msc_ctx_get(p_msc);
+
+ NRF_LOG_DEBUG("state: %d, ep in event, status: %d",
+ p_msc_ctx->state,
+ p_event->drv_evt.data.eptransfer.status);
+
+ if (p_event->drv_evt.data.eptransfer.status != NRF_USBD_EP_OK)
+ {
+ return NRF_SUCCESS;
+ }
+
+ ret_code_t ret = NRF_SUCCESS;
+
+ switch (p_msc_ctx->state)
+ {
+ case APP_USBD_MSC_STATE_CMD_IN:
+ {
+ ret = csw_wait_start(p_inst, APP_USBD_MSC_CSW_STATUS_PASS);
+ break;
+ }
+
+ case APP_USBD_MSC_STATE_DATA_IN:
+ {
+ ret = state_data_in_handle(p_inst);
+ break;
+ }
+
+ case APP_USBD_MSC_STATE_CSW:
+ {
+ break;
+ }
+
+ case APP_USBD_MSC_STATE_DATA_OUT:
+ {
+ break;
+ }
+
+ case APP_USBD_MSC_STATE_UNSUPPORTED:
+ {
+ ret = NRF_ERROR_NOT_SUPPORTED;
+ break;
+ }
+
+ default:
+ {
+ ret = NRF_ERROR_INTERNAL;
+ break;
+ }
+ }
+
+ return ret;
+}
+
+
+/**
+ * @brief Helper function to calculate next block transfer block count
+ *
+ * @param[in] p_msc MSC instance
+ * @param[in] p_msc_ctx MSC context
+ *
+ * @return Blocks to transfer
+ * */
+static uint32_t next_transfer_blkcnt_calc(app_usbd_msc_t const * p_msc,
+ app_usbd_msc_ctx_t * p_msc_ctx)
+{
+ uint32_t blkcnt = p_msc->specific.inst.block_buff_size / p_msc_ctx->current.blk_size;
+
+ if (blkcnt > (p_msc_ctx->current.blk_datasize / p_msc_ctx->current.blk_size))
+ {
+ blkcnt = p_msc_ctx->current.blk_datasize / p_msc_ctx->current.blk_size;
+ }
+
+ return blkcnt;
+}
+
+
+/**
+ * @brief Helper function to calculate next transfer size
+ *
+ * @param[in] p_msc_ctx MSC context
+ *
+ * @return Blocks to transfer
+ * */
+static uint32_t next_transfer_size_calc(app_usbd_msc_ctx_t * p_msc_ctx)
+{
+ uint32_t blk_cnt = p_msc_ctx->current.blk_count;
+ uint32_t blk_size = p_msc_ctx->current.blk_size;
+
+ return p_msc_ctx->current.blk_datasize > blk_size * blk_cnt ?
+ blk_size * blk_cnt : p_msc_ctx->current.blk_datasize;
+}
+
+
+/**
+ * @brief SCSI Command: @ref APP_USBD_SCSI_CMD_TESTUNITREADY handle
+ *
+ * @param[in] p_inst Generic class instance
+ * @param[in] p_msc MSC instance
+ * @param[in] p_msc_ctx MSC context
+ * @return Standard error code
+ * */
+static ret_code_t cmd_testunitready(app_usbd_class_inst_t const * p_inst,
+ app_usbd_msc_t const * p_msc,
+ app_usbd_msc_ctx_t * p_msc_ctx)
+{
+ NRF_LOG_DEBUG("CMD: TESTUNITREADY");
+ if (uint32_decode(p_msc_ctx->cbw.datlen) != 0)
+ {
+ return status_unsupported_start(p_inst);
+ }
+
+ if (p_msc_ctx->cbw.cdb_length != APP_USBD_SCSI_CMD_TESTUNITREADY_LEN)
+ {
+ return status_unsupported_start(p_inst);
+ }
+
+ if (p_msc_ctx->cbw.lun >= p_msc->specific.inst.block_devs_count)
+ {
+ return status_unsupported_start(p_inst);
+ }
+
+ return csw_wait_start(p_inst, APP_USBD_MSC_CSW_STATUS_PASS);
+}
+
+
+/**
+ * @brief SCSI Command: @ref APP_USBD_SCSI_CMD_REQUESTSENSE handle
+ *
+ * @param[in] p_inst Generic class instance
+ * @param[in] p_msc MSC instance
+ * @param[in] p_msc_ctx MSC context
+ * @return Standard error code
+ * */
+static ret_code_t cmd_requestsense(app_usbd_class_inst_t const * p_inst,
+ app_usbd_msc_t const * p_msc,
+ app_usbd_msc_ctx_t * p_msc_ctx)
+{
+ NRF_LOG_DEBUG("CMD: REQUESTSENSE");
+ app_usbd_scsi_cmd_requestsense_t const * p_reqs = (const void *)p_msc_ctx->cbw.cdb;
+ UNUSED_VARIABLE(p_reqs);
+
+ if ((p_msc_ctx->cbw.cdb_length < sizeof(app_usbd_scsi_cmd_requestsense_t)))
+ {
+ return status_unsupported_start(p_inst);
+ }
+
+ if (p_msc_ctx->cbw.lun >= p_msc->specific.inst.block_devs_count)
+ {
+ return status_unsupported_start(p_inst);
+ }
+
+ if (uint32_decode(p_msc_ctx->cbw.datlen) > sizeof(app_usbd_scsi_cmd_requestsense_resp_t))
+ {
+ return status_unsupported_start(p_inst);
+ }
+
+ p_msc_ctx->resp_len = uint32_decode(p_msc_ctx->cbw.datlen);
+
+ if (p_msc_ctx->resp_len == 0)
+ {
+ return csw_wait_start(p_inst, APP_USBD_MSC_CSW_STATUS_PASS);
+ }
+
+ memset(&p_msc_ctx->scsi_resp, 0, sizeof(app_usbd_scsi_cmd_requestsense_resp_t));
+ p_msc_ctx->scsi_resp.requestsense.code = APP_USBD_SCSI_CMD_REQSENSE_CODE_VALID |
+ APP_USBD_SCSI_CMD_REQSENSE_CODE_CURRENT;
+
+ p_msc_ctx->scsi_resp.requestsense.len = sizeof(app_usbd_scsi_cmd_requestsense_resp_t) -
+ offsetof(app_usbd_scsi_cmd_requestsense_resp_t, len);
+
+ return transfer_in_start(p_inst,
+ &p_msc_ctx->scsi_resp,
+ p_msc_ctx->resp_len,
+ APP_USBD_MSC_STATE_CMD_IN);
+}
+
+
+/**
+ * @brief SCSI Command: @ref APP_USBD_SCSI_CMD_FORMAT_UNIT handle
+ *
+ * @param[in] p_inst Generic class instance
+ * @param[in] p_msc MSC instance
+ * @param[in] p_msc_ctx MSC context
+ * @return Standard error code
+ * */
+static ret_code_t cmd_formatunit(app_usbd_class_inst_t const * p_inst,
+ app_usbd_msc_t const * p_msc,
+ app_usbd_msc_ctx_t * p_msc_ctx)
+{
+ NRF_LOG_DEBUG("CMD: FORMAT_UNIT");
+ return status_unsupported_start(p_inst);
+}
+
+
+static ret_code_t cmd_read_start(app_usbd_class_inst_t const * p_inst,
+ app_usbd_msc_t const * p_msc,
+ app_usbd_msc_ctx_t * p_msc_ctx)
+{
+ nrf_block_dev_t const * p_blkd = p_msc->specific.inst.pp_block_devs[p_msc_ctx->cbw.lun];
+
+ p_msc_ctx->current.trans_in_progress = false;
+ p_msc_ctx->current.req_busy_mask = 0;
+ p_msc_ctx->current.workbuff_pos = 0;
+
+ APP_USBD_MSC_REQ_BUSY_SET(p_msc_ctx->current.req_busy_mask, 0);
+ NRF_BLOCK_DEV_REQUEST(req,
+ p_msc_ctx->current.blk_idx,
+ p_msc_ctx->current.blk_count,
+ ((uint8_t *)p_msc->specific.inst.p_block_buff +
+ p_msc_ctx->current.workbuff_pos));
+
+ NRF_LOG_DEBUG("cmd_read_start");
+ NRF_LOG_DEBUG("nrf_blk_dev_read_req 1: id: %u, count: %u, left: %u, ptr: %p",
+ req.blk_id,
+ req.blk_count,
+ p_msc_ctx->current.blk_datasize,
+ (uint32_t)req.p_buff);
+
+ ret_code_t ret = nrf_blk_dev_read_req(p_blkd, &req);
+ NRF_LOG_DEBUG("nrf_blk_dev_read_req 1: ret: %u", ret);
+
+ return ret;
+}
+
+
+/**
+ * @brief SCSI Command: @ref APP_USBD_SCSI_CMD_READ6 handle
+ *
+ * @param[in] p_inst Generic class instance
+ * @param[in] p_msc MSC instance
+ * @param[in] p_msc_ctx MSC context
+ * @return Standard error code
+ * */
+static ret_code_t cmd_read6(app_usbd_class_inst_t const * p_inst,
+ app_usbd_msc_t const * p_msc,
+ app_usbd_msc_ctx_t * p_msc_ctx)
+{
+ NRF_LOG_DEBUG("CMD: READ6");
+ app_usbd_scsi_cmd_read6_t const * p_read6 = (const void *)p_msc_ctx->cbw.cdb;
+ if (p_msc_ctx->cbw.cdb_length < sizeof(app_usbd_scsi_cmd_read6_t))
+ {
+ return status_unsupported_start(p_inst);
+ }
+
+ if (p_msc_ctx->cbw.lun >= p_msc->specific.inst.block_devs_count)
+ {
+ return status_unsupported_start(p_inst);
+ }
+
+ nrf_block_dev_t const * p_blkd = p_msc->specific.inst.pp_block_devs[p_msc_ctx->cbw.lun];
+
+ p_msc_ctx->current.lun = p_msc_ctx->cbw.lun;
+ p_msc_ctx->current.blk_idx = ((p_read6->mslba & 0x1F) << 16) |
+ uint16_big_decode(p_read6->lslba);
+ p_msc_ctx->current.blk_datasize = uint32_decode(p_msc_ctx->cbw.datlen);
+ p_msc_ctx->current.blk_size = nrf_blk_dev_geometry(p_blkd)->blk_size;
+ p_msc_ctx->current.blk_count = next_transfer_blkcnt_calc(p_msc, p_msc_ctx);
+
+ if (p_msc_ctx->current.blk_datasize > p_msc_ctx->current.blk_size * p_read6->xfrlen)
+ {
+ p_msc_ctx->current.residue = p_msc_ctx->current.blk_datasize -
+ p_msc_ctx->current.blk_size * p_read6->xfrlen;
+ }
+
+ return cmd_read_start(p_inst, p_msc, p_msc_ctx);
+}
+
+
+static ret_code_t cmd_write_start(app_usbd_class_inst_t const * p_inst,
+ app_usbd_msc_t const * p_msc,
+ app_usbd_msc_ctx_t * p_msc_ctx)
+{
+ NRF_LOG_DEBUG("cmd_write_start");
+ ret_code_t ret = transfer_out_start(p_inst,
+ ((uint8_t *)p_msc->specific.inst.p_block_buff +
+ p_msc_ctx->current.workbuff_pos),
+ next_transfer_size_calc(p_msc_ctx),
+ APP_USBD_MSC_STATE_DATA_OUT);
+
+ if (ret == NRF_SUCCESS)
+ {
+ p_msc_ctx->current.trans_req_id = 0;
+ APP_USBD_MSC_REQ_BUSY_SET(p_msc_ctx->current.req_busy_mask,
+ p_msc_ctx->current.trans_req_id);
+ p_msc_ctx->current.workbuff_pos ^= p_msc->specific.inst.block_buff_size;
+ p_msc_ctx->current.trans_in_progress = true;
+ }
+
+ return ret;
+}
+
+
+/**
+ * @brief SCSI Command: @ref APP_USBD_SCSI_CMD_WRITE6 handle
+ *
+ * @param[in] p_inst Generic class instance
+ * @param[in] p_msc MSC instance
+ * @param[in] p_msc_ctx MSC context
+ * @return Standard error code
+ * */
+static ret_code_t cmd_write6(app_usbd_class_inst_t const * p_inst,
+ app_usbd_msc_t const * p_msc,
+ app_usbd_msc_ctx_t * p_msc_ctx)
+{
+ NRF_LOG_DEBUG("CMD: WRITE6");
+ app_usbd_scsi_cmd_write6_t const * p_write6 = (const void *)p_msc_ctx->cbw.cdb;
+ if (p_msc_ctx->cbw.cdb_length < sizeof(app_usbd_scsi_cmd_write6_t))
+ {
+ return status_unsupported_start(p_inst);
+ }
+
+ if (p_msc_ctx->cbw.lun >= p_msc->specific.inst.block_devs_count)
+ {
+ return status_unsupported_start(p_inst);
+ }
+
+ nrf_block_dev_t const * p_blkd = p_msc->specific.inst.pp_block_devs[p_msc_ctx->cbw.lun];
+
+ p_msc_ctx->current.lun = p_msc_ctx->cbw.lun;
+ p_msc_ctx->current.blk_idx = (p_write6->mslba & 0x1F << 16) |
+ uint16_big_decode(p_write6->lslba);
+ p_msc_ctx->current.blk_datasize = uint32_decode(p_msc_ctx->cbw.datlen);
+ p_msc_ctx->current.blk_size = nrf_blk_dev_geometry(p_blkd)->blk_size;
+ p_msc_ctx->current.blk_count = next_transfer_blkcnt_calc(p_msc, p_msc_ctx);
+
+ if (p_msc_ctx->current.blk_datasize > p_msc_ctx->current.blk_size * p_write6->xfrlen)
+ {
+ p_msc_ctx->current.residue = p_msc_ctx->current.blk_datasize -
+ p_msc_ctx->current.blk_size * p_write6->xfrlen;
+ }
+
+ return cmd_write_start(p_inst, p_msc, p_msc_ctx);
+}
+
+
+/**
+ * @brief SCSI Command: @ref APP_USBD_SCSI_CMD_INQUIRY handle
+ *
+ * @param[in] p_inst Generic class instance
+ * @param[in] p_msc MSC instance
+ * @param[in] p_msc_ctx MSC context
+ * @return Standard error code
+ * */
+static ret_code_t cmd_inquiry(app_usbd_class_inst_t const * p_inst,
+ app_usbd_msc_t const * p_msc,
+ app_usbd_msc_ctx_t * p_msc_ctx)
+{
+ NRF_LOG_DEBUG("CMD: INQUIRY");
+ app_usbd_scsi_cmd_inquiry_t const * p_inq = (const void *)p_msc_ctx->cbw.cdb;
+ if (p_inq->pagecode != 0)
+ {
+ NRF_LOG_WARNING("unsupported pagecode");
+ return status_unsupported_start(p_inst);
+ }
+
+ if (p_msc_ctx->cbw.lun >= p_msc->specific.inst.block_devs_count)
+ {
+ NRF_LOG_WARNING("unsupported LUN");
+ return status_unsupported_start(p_inst);
+ }
+
+ if (uint32_decode(p_msc_ctx->cbw.datlen) > sizeof(app_usbd_scsi_cmd_inquiry_resp_t))
+ {
+ return status_unsupported_start(p_inst);
+ }
+
+ p_msc_ctx->resp_len = uint32_decode(p_msc_ctx->cbw.datlen);
+
+ if (p_msc_ctx->resp_len == 0)
+ {
+ return csw_wait_start(p_inst, APP_USBD_MSC_CSW_STATUS_PASS);
+ }
+
+
+ p_msc_ctx->scsi_resp.inquiry.qualtype = APP_USBD_MSC_SCSI_INQ_QUAL_CONNECTED |
+ APP_USBD_MSC_SCSI_INQ_TYPE_DIR_ACCESS;
+ p_msc_ctx->scsi_resp.inquiry.flags1 = APP_USBD_MSC_SCSI_INQ_FLAG1_RMB;
+ p_msc_ctx->scsi_resp.inquiry.version = APP_USBD_SCSI_INQ_VER_SPC4;
+ p_msc_ctx->scsi_resp.inquiry.flags2 = APP_USBD_MSC_SCSI_INQ_FLAG2_RSP_SPC2 |
+ APP_USBD_MSC_SCSI_INQ_FLAG2_HISUP;
+ p_msc_ctx->scsi_resp.inquiry.len = sizeof(app_usbd_scsi_cmd_inquiry_resp_t) -
+ offsetof(app_usbd_scsi_cmd_inquiry_resp_t, len);
+
+ nrf_block_dev_t const * p_blkd =
+ p_msc->specific.inst.pp_block_devs[p_msc_ctx->cbw.lun];
+ nrf_block_dev_info_strings_t * p_strings = NULL;
+ UNUSED_RETURN_VALUE(nrf_blk_dev_ioctl(p_blkd,
+ NRF_BLOCK_DEV_IOCTL_REQ_INFO_STRINGS,
+ &p_strings));
+
+ if (p_strings)
+ {
+ UNUSED_RETURN_VALUE(strncpy((char *)p_msc_ctx->scsi_resp.inquiry.vendorid,
+ p_strings->p_vendor,
+ sizeof(p_msc_ctx->scsi_resp.inquiry.vendorid)));
+
+ UNUSED_RETURN_VALUE(strncpy((char *)p_msc_ctx->scsi_resp.inquiry.productid,
+ p_strings->p_product,
+ sizeof(p_msc_ctx->scsi_resp.inquiry.productid)));
+
+ UNUSED_RETURN_VALUE(strncpy((char *)p_msc_ctx->scsi_resp.inquiry.revision,
+ p_strings->p_revision,
+ sizeof(p_msc_ctx->scsi_resp.inquiry.revision)));
+ }
+ else
+ {
+ memset(p_msc_ctx->scsi_resp.inquiry.vendorid,
+ 0,
+ sizeof(p_msc_ctx->scsi_resp.inquiry.vendorid));
+ memset(p_msc_ctx->scsi_resp.inquiry.productid,
+ 0,
+ sizeof(p_msc_ctx->scsi_resp.inquiry.productid));
+ memset(p_msc_ctx->scsi_resp.inquiry.revision,
+ 0,
+ sizeof(p_msc_ctx->scsi_resp.inquiry.revision));
+ }
+
+ return transfer_in_start(p_inst,
+ &p_msc_ctx->scsi_resp,
+ p_msc_ctx->resp_len,
+ APP_USBD_MSC_STATE_CMD_IN);
+}
+
+
+/**
+ * @brief SCSI Command: @ref APP_USBD_SCSI_CMD_MODESELECT6 handle
+ *
+ * @param[in] p_inst Generic class instance
+ * @param[in] p_msc MSC instance
+ * @param[in] p_msc_ctx MSC context
+ * @return Standard error code
+ * */
+static ret_code_t cmd_modeselect6(app_usbd_class_inst_t const * p_inst,
+ app_usbd_msc_t const * p_msc,
+ app_usbd_msc_ctx_t * p_msc_ctx)
+{
+ NRF_LOG_DEBUG("CMD: MODESELECT6");
+ return csw_wait_start(p_inst, APP_USBD_MSC_CSW_STATUS_PASS);
+}
+
+
+/**
+ * @brief SCSI Command: @ref APP_USBD_SCSI_CMD_MODESENSE6 handle
+ *
+ * @param[in] p_inst Generic class instance
+ * @param[in] p_msc MSC instance
+ * @param[in] p_msc_ctx MSC context
+ * @return Standard error code
+ * */
+static ret_code_t cmd_modesense6(app_usbd_class_inst_t const * p_inst,
+ app_usbd_msc_t const * p_msc,
+ app_usbd_msc_ctx_t * p_msc_ctx)
+{
+ NRF_LOG_DEBUG("CMD: MODESENSE6");
+ app_usbd_scsi_cmd_modesense6_t const * p_sense6 = (const void *)p_msc_ctx->cbw.cdb;
+ UNUSED_VARIABLE(p_sense6);
+ if (p_msc_ctx->cbw.cdb_length < sizeof(app_usbd_scsi_cmd_modesense6_t))
+ {
+ return status_unsupported_start(p_inst);
+ }
+
+ if (p_msc_ctx->cbw.lun >= p_msc->specific.inst.block_devs_count)
+ {
+ return status_unsupported_start(p_inst);
+ }
+
+ if (uint32_decode(p_msc_ctx->cbw.datlen) > sizeof(app_usbd_scsi_cmd_modesense6_resp_t))
+ {
+ return status_unsupported_start(p_inst);
+ }
+
+ p_msc_ctx->resp_len = uint32_decode(p_msc_ctx->cbw.datlen);
+
+ app_usbd_scsi_cmd_modesense6_resp_t * p_resp = &p_msc_ctx->scsi_resp.modesense6;
+ p_resp->mdlen = sizeof(app_usbd_scsi_cmd_modesense6_resp_t) - 1;
+ p_resp->type = 0;
+ p_resp->param = 0;
+ p_resp->bdlen = 0;
+
+ return transfer_in_start(p_inst,
+ &p_msc_ctx->scsi_resp,
+ p_msc_ctx->resp_len,
+ APP_USBD_MSC_STATE_CMD_IN);
+}
+
+
+/**
+ * @brief SCSI Command: @ref APP_USBD_SCSI_CMD_STARTSTOPUNIT handle
+ *
+ * @param[in] p_inst Generic class instance
+ * @param[in] p_msc MSC instance
+ * @param[in] p_msc_ctx MSC context
+ * @return Standard error code
+ * */
+static ret_code_t cmd_startstopunit(app_usbd_class_inst_t const * p_inst,
+ app_usbd_msc_t const * p_msc,
+ app_usbd_msc_ctx_t * p_msc_ctx)
+{
+ NRF_LOG_DEBUG("CMD: STARTSTOPUNIT");
+ return csw_wait_start(p_inst, APP_USBD_MSC_CSW_STATUS_PASS);
+}
+
+
+/**
+ * @brief SCSI Command: @ref APP_USBD_SCSI_CMD_SENDDIAGNOSTIC handle
+ *
+ * @param[in] p_inst Generic class instance
+ * @param[in] p_msc MSC instance
+ * @param[in] p_msc_ctx MSC context
+ * @return Standard error code
+ * */
+static ret_code_t cmd_senddiagnostic(app_usbd_class_inst_t const * p_inst,
+ app_usbd_msc_t const * p_msc,
+ app_usbd_msc_ctx_t * p_msc_ctx)
+{
+ NRF_LOG_DEBUG("CMD: SENDDIAGNOSTIC");
+ return csw_wait_start(p_inst, APP_USBD_MSC_CSW_STATUS_PASS);
+}
+
+
+/**
+ * @brief SCSI Command: @ref APP_USBD_SCSI_CMD_PREVENTMEDIAREMOVAL handle
+ *
+ * @param[in] p_inst Generic class instance
+ * @param[in] p_msc MSC instance
+ * @param[in] p_msc_ctx MSC context
+ * @return Standard error code
+ * */
+static ret_code_t cmd_preventremoval(app_usbd_class_inst_t const * p_inst,
+ app_usbd_msc_t const * p_msc,
+ app_usbd_msc_ctx_t * p_msc_ctx)
+{
+ NRF_LOG_DEBUG("CMD: PREVENTMEDIAREMOVAL");
+ return csw_wait_start(p_inst, APP_USBD_MSC_CSW_STATUS_PASS);
+}
+
+
+/**
+ * @brief SCSI Command: @ref APP_USBD_SCSI_CMD_READCAPACITY10 handle
+ *
+ * @param[in] p_inst Generic class instance
+ * @param[in] p_msc MSC instance
+ * @param[in] p_msc_ctx MSC context
+ * @return Standard error code
+ * */
+static ret_code_t cmd_readcapacity10(app_usbd_class_inst_t const * p_inst,
+ app_usbd_msc_t const * p_msc,
+ app_usbd_msc_ctx_t * p_msc_ctx)
+{
+ NRF_LOG_DEBUG("CMD: READCAPACITY10");
+
+ app_usbd_scsi_cmd_readcapacity10_t const * p_cap10 = (const void *)p_msc_ctx->cbw.cdb;
+ UNUSED_VARIABLE(p_cap10);
+ if (p_msc_ctx->cbw.cdb_length < sizeof(app_usbd_scsi_cmd_readcapacity10_t))
+ {
+ return status_unsupported_start(p_inst);
+ }
+
+ if (p_msc_ctx->cbw.lun >= p_msc->specific.inst.block_devs_count)
+ {
+ return status_unsupported_start(p_inst);
+ }
+
+ if (uint32_decode(p_msc_ctx->cbw.datlen) > sizeof(app_usbd_scsi_cmd_readcapacity10_resp_t))
+ {
+ return status_unsupported_start(p_inst);
+ }
+
+ p_msc_ctx->resp_len = uint32_decode(p_msc_ctx->cbw.datlen);
+
+ if (p_msc_ctx->resp_len == 0)
+ {
+ return csw_wait_start(p_inst, APP_USBD_MSC_CSW_STATUS_PASS);
+ }
+
+ nrf_block_dev_t const * p_blkd =
+ p_msc->specific.inst.pp_block_devs[p_msc_ctx->cbw.lun];
+ nrf_block_dev_geometry_t const * p_geometry = nrf_blk_dev_geometry(p_blkd);
+
+ (void)uint32_big_encode(p_geometry->blk_count - 1, p_msc_ctx->scsi_resp.readcapacity10.lba);
+ (void)uint32_big_encode(p_geometry->blk_size, p_msc_ctx->scsi_resp.readcapacity10.blklen);
+
+ return transfer_in_start(p_inst,
+ &p_msc_ctx->scsi_resp,
+ p_msc_ctx->resp_len,
+ APP_USBD_MSC_STATE_CMD_IN);
+}
+
+
+/**
+ * @brief SCSI Command: @ref APP_USBD_SCSI_CMD_READ10 handle
+ *
+ * @param[in] p_inst Generic class instance
+ * @param[in] p_msc MSC instance
+ * @param[in] p_msc_ctx MSC context
+ * @return Standard error code
+ * */
+static ret_code_t cmd_read10(app_usbd_class_inst_t const * p_inst,
+ app_usbd_msc_t const * p_msc,
+ app_usbd_msc_ctx_t * p_msc_ctx)
+{
+ NRF_LOG_DEBUG("CMD: READ10");
+ app_usbd_scsi_cmd_read10_t const * p_read10 = (const void *)p_msc_ctx->cbw.cdb;
+ if (p_msc_ctx->cbw.cdb_length < sizeof(app_usbd_scsi_cmd_read10_t))
+ {
+ return status_unsupported_start(p_inst);
+ }
+
+ if (p_msc_ctx->cbw.lun >= p_msc->specific.inst.block_devs_count)
+ {
+ return status_unsupported_start(p_inst);
+ }
+
+ if (uint32_decode(p_msc_ctx->cbw.datlen) == 0)
+ {
+ return csw_wait_start(p_inst, APP_USBD_MSC_CSW_STATUS_FAIL);
+ }
+
+ if ((p_msc_ctx->cbw.flags & APP_USBD_MSC_CBW_DIRECTION_IN) == 0)
+ {
+ return status_unsupported_start(p_inst);
+ }
+
+ nrf_block_dev_t const * p_blkd = p_msc->specific.inst.pp_block_devs[p_msc_ctx->cbw.lun];
+
+ p_msc_ctx->current.lun = p_msc_ctx->cbw.lun;
+ p_msc_ctx->current.blk_idx = uint32_big_decode(p_read10->lba);
+ p_msc_ctx->current.blk_datasize = uint32_decode(p_msc_ctx->cbw.datlen);
+ p_msc_ctx->current.blk_size = nrf_blk_dev_geometry(p_blkd)->blk_size;
+ p_msc_ctx->current.blk_count = next_transfer_blkcnt_calc(p_msc, p_msc_ctx);
+
+ uint16_t blocks = uint16_big_decode(p_read10->xfrlen);
+ p_msc_ctx->current.csw_status =
+ uint32_decode(p_msc_ctx->cbw.datlen) < p_msc_ctx->current.blk_size * blocks ?
+ APP_USBD_MSC_CSW_STATUS_FAIL : APP_USBD_MSC_CSW_STATUS_PASS;
+
+ if (p_msc_ctx->current.blk_datasize > p_msc_ctx->current.blk_size * blocks)
+ {
+ p_msc_ctx->current.residue = p_msc_ctx->current.blk_datasize -
+ p_msc_ctx->current.blk_size * blocks;
+ }
+
+ return cmd_read_start(p_inst, p_msc, p_msc_ctx);
+}
+
+
+/**
+ * @brief SCSI Command: @ref APP_USBD_SCSI_CMD_WRITE10 handle
+ *
+ * @param[in] p_inst Generic class instance
+ * @param[in] p_msc MSC instance
+ * @param[in] p_msc_ctx MSC context
+ * @return Standard error code
+ * */
+static ret_code_t cmd_write10(app_usbd_class_inst_t const * p_inst,
+ app_usbd_msc_t const * p_msc,
+ app_usbd_msc_ctx_t * p_msc_ctx)
+{
+ NRF_LOG_DEBUG("CMD: WRITE10");
+ app_usbd_scsi_cmd_write10_t const * p_write10 = (const void *)p_msc_ctx->cbw.cdb;
+ if (p_msc_ctx->cbw.cdb_length < sizeof(app_usbd_scsi_cmd_write10_t))
+ {
+ return status_unsupported_start(p_inst);
+ }
+
+ if (p_msc_ctx->cbw.lun >= p_msc->specific.inst.block_devs_count)
+ {
+ return status_unsupported_start(p_inst);
+ }
+
+ if (uint32_decode(p_msc_ctx->cbw.datlen) == 0)
+ {
+ return csw_wait_start(p_inst, APP_USBD_MSC_CSW_STATUS_FAIL);
+ }
+
+
+ if ((p_msc_ctx->cbw.flags & APP_USBD_MSC_CBW_DIRECTION_IN) != 0)
+ {
+ return status_unsupported_start(p_inst);
+ }
+
+ nrf_block_dev_t const * p_blkd = p_msc->specific.inst.pp_block_devs[p_msc_ctx->cbw.lun];
+
+ p_msc_ctx->current.lun = p_msc_ctx->cbw.lun;
+ p_msc_ctx->current.blk_idx = uint32_big_decode(p_write10->lba);
+ p_msc_ctx->current.blk_datasize = uint32_decode(p_msc_ctx->cbw.datlen);
+ p_msc_ctx->current.blk_size = nrf_blk_dev_geometry(p_blkd)->blk_size;
+ p_msc_ctx->current.blk_count = next_transfer_blkcnt_calc(p_msc, p_msc_ctx);
+
+ uint16_t blocks = uint16_big_decode(p_write10->xfrlen);
+ p_msc_ctx->current.csw_status =
+ uint32_decode(p_msc_ctx->cbw.datlen) < p_msc_ctx->current.blk_size * blocks ?
+ APP_USBD_MSC_CSW_STATUS_FAIL : APP_USBD_MSC_CSW_STATUS_PASS;
+
+ if (p_msc_ctx->current.blk_datasize > p_msc_ctx->current.blk_size * blocks)
+ {
+ p_msc_ctx->current.residue = p_msc_ctx->current.blk_datasize -
+ p_msc_ctx->current.blk_size * blocks;
+ }
+
+ return cmd_write_start(p_inst, p_msc, p_msc_ctx);
+}
+
+
+/**
+ * @brief SCSI Command: @ref APP_USBD_SCSI_CMD_MODESELECT10 handle
+ *
+ * @param[in] p_inst Generic class instance
+ * @param[in] p_msc MSC instance
+ * @param[in] p_msc_ctx MSC context
+ * @return Standard error code
+ * */
+static ret_code_t cmd_modeselect10(app_usbd_class_inst_t const * p_inst,
+ app_usbd_msc_t const * p_msc,
+ app_usbd_msc_ctx_t * p_msc_ctx)
+{
+ NRF_LOG_DEBUG("CMD: MODESELECT10");
+ return csw_wait_start(p_inst, APP_USBD_MSC_CSW_STATUS_PASS);
+}
+
+
+/**
+ * @brief SCSI Command: @ref APP_USBD_SCSI_CMD_MODESENSE10 handle
+ *
+ * @param[in] p_inst Generic class instance
+ * @param[in] p_msc MSC instance
+ * @param[in] p_msc_ctx MSC context
+ * @return Standard error code
+ * */
+static ret_code_t cmd_modesense10(app_usbd_class_inst_t const * p_inst,
+ app_usbd_msc_t const * p_msc,
+ app_usbd_msc_ctx_t * p_msc_ctx)
+{
+ NRF_LOG_DEBUG("CMD: MODESENSE10");
+ app_usbd_scsi_cmd_modesense10_t const * p_sense10 = (const void *)p_msc_ctx->cbw.cdb;
+ UNUSED_VARIABLE(p_sense10);
+ if (p_msc_ctx->cbw.cdb_length < sizeof(app_usbd_scsi_cmd_modesense10_t))
+ {
+ return status_unsupported_start(p_inst);
+ }
+
+ if (p_msc_ctx->cbw.lun >= p_msc->specific.inst.block_devs_count)
+ {
+ return status_unsupported_start(p_inst);
+ }
+
+ if (uint32_decode(p_msc_ctx->cbw.datlen) > sizeof(app_usbd_scsi_cmd_modesense6_resp_t))
+ {
+ return status_unsupported_start(p_inst);
+ }
+
+ p_msc_ctx->resp_len = uint32_decode(p_msc_ctx->cbw.datlen);
+
+ app_usbd_scsi_cmd_modesense10_resp_t * p_resp = &p_msc_ctx->scsi_resp.modesense10;
+
+ memset(p_resp, 0, sizeof(app_usbd_scsi_cmd_modesense10_resp_t));
+ uint16_t len = sizeof(app_usbd_scsi_cmd_modesense10_resp_t) - sizeof(p_resp->mdlen);
+ p_resp->mdlen[1] = len & 0xff;
+ p_resp->mdlen[0] = (len >> 8) & 0xff;
+
+ return transfer_in_start(p_inst,
+ &p_msc_ctx->scsi_resp,
+ p_msc_ctx->resp_len,
+ APP_USBD_MSC_STATE_CMD_IN);
+}
+
+
+/**
+ * @brief Get the size of the last OUT transfer
+ *
+ * @param p_inst Generic class instance
+ *
+ * @return Number of received bytes or 0 if none.
+ */
+static size_t get_last_out_size(app_usbd_class_inst_t const * p_inst)
+{
+ nrf_drv_usbd_ep_t ep = ep_out_addr_get(p_inst);
+ size_t size;
+ ret_code_t ret = nrf_drv_usbd_ep_status_get(ep, &size);
+
+ if (ret != NRF_SUCCESS)
+ {
+ size = 0;
+ }
+
+ return size;
+}
+
+
+/**
+ * @brief SCSI Command Block Wrapper handler
+ *
+ * @param[in] p_inst Generic class instance
+ * @return Standard error code
+ * */
+static ret_code_t state_cbw(app_usbd_class_inst_t const * p_inst)
+{
+ app_usbd_msc_t const * p_msc = msc_get(p_inst);
+ app_usbd_msc_ctx_t * p_msc_ctx = msc_ctx_get(p_msc);
+
+ memset(&p_msc_ctx->current, 0, sizeof(p_msc_ctx->current));
+
+ /*Verify the transfer size*/
+ if (get_last_out_size(p_inst) != sizeof(app_usbd_msc_cbw_t))
+ {
+ NRF_LOG_DEBUG("CMD: size error: %u", get_last_out_size(p_inst));
+ status_cbwinvalid_start(p_inst);
+ return NRF_SUCCESS;
+ }
+
+ /*Verify CBW signature*/
+ if (memcmp(p_msc_ctx->cbw.signature,
+ APP_USBD_MSC_CBW_SIGNATURE,
+ sizeof(p_msc_ctx->cbw.signature)) != 0)
+ {
+ NRF_LOG_DEBUG("CMD: header error: 0x%02x%02x%02x%02x",
+ p_msc_ctx->cbw.signature[0], p_msc_ctx->cbw.signature[1],
+ p_msc_ctx->cbw.signature[2], p_msc_ctx->cbw.signature[3]);
+
+ status_cbwinvalid_start(p_inst);
+ return NRF_SUCCESS;
+ }
+
+ ret_code_t ret = NRF_SUCCESS;
+
+ switch (p_msc_ctx->cbw.cdb[0])
+ {
+ case APP_USBD_SCSI_CMD_TESTUNITREADY:
+ ret = cmd_testunitready(p_inst, p_msc, p_msc_ctx);
+ break;
+
+ case APP_USBD_SCSI_CMD_REQUESTSENSE:
+ ret = cmd_requestsense(p_inst, p_msc, p_msc_ctx);
+ break;
+
+ case APP_USBD_SCSI_CMD_FORMAT_UNIT:
+ ret = cmd_formatunit(p_inst, p_msc, p_msc_ctx);
+ break;
+
+ case APP_USBD_SCSI_CMD_READ6:
+ ret = cmd_read6(p_inst, p_msc, p_msc_ctx);
+ break;
+
+ case APP_USBD_SCSI_CMD_WRITE6:
+ ret = cmd_write6(p_inst, p_msc, p_msc_ctx);
+ break;
+
+ case APP_USBD_SCSI_CMD_INQUIRY:
+ ret = cmd_inquiry(p_inst, p_msc, p_msc_ctx);
+ break;
+
+ case APP_USBD_SCSI_CMD_MODESELECT6:
+ ret = cmd_modeselect6(p_inst, p_msc, p_msc_ctx);
+ break;
+
+ case APP_USBD_SCSI_CMD_MODESENSE6:
+ ret = cmd_modesense6(p_inst, p_msc, p_msc_ctx);
+ break;
+
+ case APP_USBD_SCSI_CMD_STARTSTOPUNIT:
+ ret = cmd_startstopunit(p_inst, p_msc, p_msc_ctx);
+ break;
+
+ case APP_USBD_SCSI_CMD_SENDDIAGNOSTIC:
+ ret = cmd_senddiagnostic(p_inst, p_msc, p_msc_ctx);
+ break;
+
+ case APP_USBD_SCSI_CMD_PREVENTMEDIAREMOVAL:
+ ret = cmd_preventremoval(p_inst, p_msc, p_msc_ctx);
+ break;
+
+ case APP_USBD_SCSI_CMD_READCAPACITY10:
+ ret = cmd_readcapacity10(p_inst, p_msc, p_msc_ctx);
+ break;
+
+ case APP_USBD_SCSI_CMD_READ10:
+ ret = cmd_read10(p_inst, p_msc, p_msc_ctx);
+ break;
+
+ case APP_USBD_SCSI_CMD_WRITE10:
+ ret = cmd_write10(p_inst, p_msc, p_msc_ctx);
+ break;
+
+ case APP_USBD_SCSI_CMD_MODESELECT10:
+ ret = cmd_modeselect10(p_inst, p_msc, p_msc_ctx);
+ break;
+
+ case APP_USBD_SCSI_CMD_MODESENSE10:
+ ret = cmd_modesense10(p_inst, p_msc, p_msc_ctx);
+ break;
+
+ default:
+ NRF_LOG_DEBUG("CMD: UNSUPPORTED");
+ NRF_LOG_HEXDUMP_DEBUG(&(p_msc_ctx->cbw), sizeof(p_msc_ctx->cbw));
+ if (uint32_decode(p_msc_ctx->cbw.datlen) != 0)
+ {
+ ret = status_unsupported_start(p_inst);
+ }
+ else
+ {
+ ret = csw_wait_start(p_inst, APP_USBD_MSC_CSW_STATUS_FAIL);
+ }
+ break;
+ }
+
+ return ret;
+}
+
+
+/**
+ * @brief Handle write6/write10 command data stage
+ *
+ * @param[in] p_inst Generic class instance
+ *
+ * @return Standard error code
+ * @retval NRF_SUCCESS if request handled correctly
+ * @retval NRF_ERROR_NOT_SUPPORTED if request is not supported
+ */
+static ret_code_t state_data_out_handle(app_usbd_class_inst_t const * p_inst)
+{
+ app_usbd_msc_t const * p_msc = msc_get(p_inst);
+ app_usbd_msc_ctx_t * p_msc_ctx = msc_ctx_get(p_msc);
+
+ ret_code_t ret = NRF_SUCCESS;
+ uint32_t blk_size = p_msc_ctx->current.blk_size;
+
+ NRF_LOG_DEBUG("APP_USBD_MSC_STATE_DATA_OUT");
+
+ p_msc_ctx->current.trans_in_progress = false;
+ if ((p_msc_ctx->current.req_busy_mask != APP_USBD_MSC_REQ_BUSY_FULL_MASK) &&
+ (p_msc_ctx->current.blk_datasize > p_msc_ctx->current.blk_count * blk_size))
+ {
+ size_t size = p_msc_ctx->current.blk_datasize - p_msc_ctx->current.blk_count * blk_size;
+ if (size > p_msc_ctx->current.blk_count * blk_size)
+ {
+ size = p_msc_ctx->current.blk_count * blk_size;
+ }
+
+ if (size)
+ {
+ ret = transfer_out_start(p_inst,
+ ((uint8_t *)p_msc->specific.inst.p_block_buff +
+ p_msc_ctx->current.workbuff_pos),
+ size,
+ APP_USBD_MSC_STATE_DATA_OUT);
+ if (ret == NRF_SUCCESS)
+ {
+ p_msc_ctx->current.trans_req_id ^= 1;
+ APP_USBD_MSC_REQ_BUSY_SET(p_msc_ctx->current.req_busy_mask,
+ p_msc_ctx->current.trans_req_id);
+ p_msc_ctx->current.workbuff_pos ^= p_msc->specific.inst.block_buff_size;
+ p_msc_ctx->current.trans_in_progress = true;
+ }
+ }
+ }
+
+ if (!p_msc_ctx->current.block_req_in_progress)
+ {
+ nrf_block_dev_t const * p_blkd =
+ p_msc->specific.inst.pp_block_devs[p_msc_ctx->current.lun];
+
+ size_t pos = p_msc_ctx->current.workbuff_pos;
+ if (p_msc_ctx->current.req_busy_mask != APP_USBD_MSC_REQ_BUSY_FULL_MASK)
+ {
+ pos ^= p_msc->specific.inst.block_buff_size;
+ }
+
+ NRF_BLOCK_DEV_REQUEST(req,
+ p_msc_ctx->current.blk_idx,
+ p_msc_ctx->current.blk_count,
+ ((uint8_t *)p_msc->specific.inst.p_block_buff + pos));
+
+ NRF_LOG_DEBUG("nrf_blk_dev_write_req 1: id: %u, count: %u, left: %u, ptr: %p",
+ req.blk_id,
+ req.blk_count,
+ p_msc_ctx->current.blk_datasize,
+ (uint32_t)req.p_buff);
+
+ p_msc_ctx->current.block_req_in_progress = true;
+ ret = nrf_blk_dev_write_req(p_blkd, &req);
+ NRF_LOG_DEBUG("nrf_blk_dev_write_req 1: ret: %u", ret);
+ }
+
+ return ret;
+}
+
+
+/**
+ * @brief Endpoint OUT event handler
+ *
+ * @param[in] p_inst Generic class instance
+ * @param[in] p_setup_ev Setup event
+ *
+ * @return Standard error code
+ * @retval NRF_SUCCESS if request handled correctly
+ * @retval NRF_ERROR_NOT_SUPPORTED if request is not supported
+ */
+static ret_code_t endpoint_out_event_handler(app_usbd_class_inst_t const * p_inst,
+ app_usbd_complex_evt_t const * p_event)
+{
+ app_usbd_msc_t const * p_msc = msc_get(p_inst);
+ app_usbd_msc_ctx_t * p_msc_ctx = msc_ctx_get(p_msc);
+
+ NRF_LOG_DEBUG("state: %d, ep out event, status: %d",
+ p_msc_ctx->state,
+ p_event->drv_evt.data.eptransfer.status);
+
+ ret_code_t ret = NRF_SUCCESS;
+ if (p_event->drv_evt.data.eptransfer.status == NRF_USBD_EP_WAITING)
+ {
+ if (p_msc_ctx->state == APP_USBD_MSC_STATE_DATA_OUT)
+ {
+ NRF_LOG_DEBUG("NRF_USBD_EP_WAITING");
+ }
+ else if (p_msc_ctx->state == APP_USBD_MSC_STATE_CSW ||
+ p_msc_ctx->state == APP_USBD_MSC_STATE_IDLE)
+ {
+ ret = cbw_wait_start(p_inst);
+ }
+
+ return ret;
+ }
+ else if (p_event->drv_evt.data.eptransfer.status == NRF_USBD_EP_ABORTED)
+ {
+ p_msc_ctx->state = APP_USBD_MSC_STATE_IDLE;
+ return NRF_SUCCESS;
+ }
+ else if (p_event->drv_evt.data.eptransfer.status == NRF_USBD_EP_OVERLOAD)
+ {
+ NRF_LOG_ERROR("Data overload");
+
+ switch (p_msc_ctx->state)
+ {
+ case APP_USBD_MSC_STATE_DATA_OUT:
+ {
+ status_deverror_start(p_inst);
+ }
+
+ /* Default action is the same like CBW - stall totally until bulk reset */
+ case APP_USBD_MSC_STATE_CBW:
+ default:
+ {
+ status_cbwinvalid_start(p_inst);
+ }
+ }
+ return NRF_SUCCESS;
+ }
+ else /*NRF_USBD_EP_OK*/
+ {
+ switch (p_msc_ctx->state)
+ {
+ case APP_USBD_MSC_STATE_CBW:
+ {
+ ret = state_cbw(p_inst);
+ break;
+ }
+
+ case APP_USBD_MSC_STATE_CMD_OUT:
+ {
+ ret = csw_wait_start(p_inst, APP_USBD_MSC_CSW_STATUS_PASS);
+ break;
+ }
+
+ case APP_USBD_MSC_STATE_DATA_OUT:
+ {
+ CRITICAL_REGION_ENTER();
+ ret = state_data_out_handle(p_inst);
+ CRITICAL_REGION_EXIT();
+ break;
+ }
+
+ case APP_USBD_MSC_STATE_UNSUPPORTED:
+ {
+ ret = NRF_ERROR_NOT_SUPPORTED;
+ break;
+ }
+
+ case APP_USBD_MSC_STATE_CSW:
+ break;
+
+ default:
+ {
+ ASSERT(0);
+ ret = NRF_ERROR_NOT_SUPPORTED;
+ break;
+ }
+ }
+ }
+
+ NRF_LOG_DEBUG("Ep proc status: %d", ret);
+ return ret;
+}
+
+
+/**
+ * @brief @ref app_usbd_class_methods_t::event_handler
+ */
+static ret_code_t msc_event_handler(app_usbd_class_inst_t const * p_inst,
+ app_usbd_complex_evt_t const * p_event)
+{
+ ASSERT(p_inst != NULL);
+ ASSERT(p_event != NULL);
+
+ app_usbd_msc_t const * p_msc = msc_get(p_inst);
+ app_usbd_msc_ctx_t * p_msc_ctx = msc_ctx_get(p_msc);
+
+ UNUSED_VARIABLE(p_msc);
+ UNUSED_VARIABLE(p_msc_ctx);
+
+ ret_code_t ret = NRF_SUCCESS;
+
+ switch (p_event->app_evt.type)
+ {
+ case APP_USBD_EVT_DRV_SOF:
+ break;
+
+ case APP_USBD_EVT_DRV_RESET:
+ break;
+
+ case APP_USBD_EVT_DRV_SETUP:
+ ret = setup_event_handler(p_inst, (app_usbd_setup_evt_t const *)p_event);
+ break;
+
+ case APP_USBD_EVT_DRV_EPTRANSFER:
+ if (NRF_USBD_EPIN_CHECK(p_event->drv_evt.data.eptransfer.ep))
+ {
+ ret = endpoint_in_event_handler(p_inst, p_event);
+ }
+ else
+ {
+ ret = endpoint_out_event_handler(p_inst, p_event);
+ }
+
+ break;
+
+ case APP_USBD_EVT_DRV_SUSPEND:
+ {
+ /*Flush all block devices cache on suspend*/
+
+ for (size_t i = 0; i < p_msc->specific.inst.block_devs_count; ++i)
+ {
+ nrf_block_dev_t const * p_blkd = p_msc->specific.inst.pp_block_devs[i];
+ (void)nrf_blk_dev_ioctl(p_blkd, NRF_BLOCK_DEV_IOCTL_REQ_CACHE_FLUSH, NULL);
+ }
+
+ break;
+ }
+
+ case APP_USBD_EVT_DRV_RESUME:
+ break;
+
+ case APP_USBD_EVT_INST_APPEND:
+ {
+ /*Verify serial number string*/
+ uint16_t const * p_serial_str = app_usbd_string_desc_get(APP_USBD_STRING_ID_SERIAL, 0);
+ if (p_serial_str == NULL)
+ {
+ return NRF_ERROR_NOT_SUPPORTED;
+ }
+
+ size_t len = app_usbd_string_desc_length(p_serial_str) / sizeof(uint16_t);
+ if (len < APP_USBD_MSC_MINIMAL_SERIAL_STRING_SIZE)
+ {
+ return NRF_ERROR_NOT_SUPPORTED;
+ }
+
+ for (size_t i = 1; i < len; ++i)
+ {
+ if (isxdigit(p_serial_str[i]) == 0)
+ {
+ return NRF_ERROR_NOT_SUPPORTED;
+ }
+ }
+
+ break;
+ }
+
+ case APP_USBD_EVT_INST_REMOVE:
+ {
+ break;
+ }
+
+ case APP_USBD_EVT_STARTED:
+ {
+ /*Initialize all block devices*/
+ ASSERT(p_msc->specific.inst.block_devs_count <= 16);
+
+ for (size_t i = 0; i < p_msc->specific.inst.block_devs_count; ++i)
+ {
+ nrf_block_dev_t const * p_blk_dev = p_msc->specific.inst.pp_block_devs[i];
+ ret = nrf_blk_dev_init(p_blk_dev, msc_blockdev_ev_handler, p_msc);
+ if (ret != NRF_SUCCESS)
+ {
+ continue;
+ }
+
+ p_msc_ctx->blk_dev_init_mask |= 1u << i;
+ ASSERT(nrf_blk_dev_geometry(p_blk_dev)->blk_size <=
+ p_msc->specific.inst.block_buff_size);
+ }
+
+ break;
+ }
+
+ case APP_USBD_EVT_STOPPED:
+ {
+ /*Un-initialize all block devices*/
+ ASSERT(p_msc->specific.inst.block_devs_count <= 16);
+ size_t i;
+
+ for (i = 0; i < p_msc->specific.inst.block_devs_count; ++i)
+ {
+ nrf_block_dev_t const * p_blk_dev = p_msc->specific.inst.pp_block_devs[i];
+ ret = nrf_blk_dev_uninit(p_blk_dev);
+ if (ret != NRF_SUCCESS)
+ {
+ continue;
+ }
+
+ p_msc_ctx->blk_dev_init_mask &= ~(1u << i);
+ }
+
+ break;
+ }
+
+ default:
+ ret = NRF_ERROR_NOT_SUPPORTED;
+ break;
+ }
+
+ return ret;
+}
+
+
+/**
+ * @brief @ref app_usbd_class_methods_t::feed_descriptors
+ */
+
+static bool msc_feed_descriptors(app_usbd_class_descriptor_ctx_t * p_ctx,
+ app_usbd_class_inst_t const * p_inst,
+ uint8_t * p_buff,
+ size_t max_size)
+{
+ static uint8_t ifaces = 0;
+ ifaces = app_usbd_class_iface_count_get(p_inst);
+ app_usbd_msc_t const * p_msc = msc_get(p_inst);
+
+ APP_USBD_CLASS_DESCRIPTOR_BEGIN(p_ctx, p_buff, max_size);
+
+ static uint8_t i = 0;
+
+ for (i = 0; i < ifaces; i++)
+ {
+ /* INTERFACE DESCRIPTOR */
+ APP_USBD_CLASS_DESCRIPTOR_WRITE(0x09); // bLength
+ APP_USBD_CLASS_DESCRIPTOR_WRITE(APP_USBD_DESCRIPTOR_INTERFACE); // bDescriptorType = Interface
+
+ static app_usbd_class_iface_conf_t const * p_cur_iface = NULL;
+ p_cur_iface = app_usbd_class_iface_get(p_inst, i);
+
+ APP_USBD_CLASS_DESCRIPTOR_WRITE(app_usbd_class_iface_number_get(p_cur_iface)); // bInterfaceNumber
+ APP_USBD_CLASS_DESCRIPTOR_WRITE(0x00); // bAlternateSetting
+ APP_USBD_CLASS_DESCRIPTOR_WRITE(app_usbd_class_iface_ep_count_get(p_cur_iface)); // bNumEndpoints
+ APP_USBD_CLASS_DESCRIPTOR_WRITE(APP_USBD_MSC_CLASS); // bInterfaceClass = MSC
+ APP_USBD_CLASS_DESCRIPTOR_WRITE(p_msc->specific.inst.subclass); // bInterfaceSubclass (Industry Standard Command Block)
+ APP_USBD_CLASS_DESCRIPTOR_WRITE(p_msc->specific.inst.protocol); // bInterfaceProtocol
+ APP_USBD_CLASS_DESCRIPTOR_WRITE(0x00); // iInterface
+
+
+ static uint8_t endpoints = 0;
+ endpoints = app_usbd_class_iface_ep_count_get(p_cur_iface);
+
+ static uint8_t j = 0;
+
+ for (j = 0; j < endpoints; j++)
+ {
+ // ENDPOINT DESCRIPTOR
+ APP_USBD_CLASS_DESCRIPTOR_WRITE(0x07); // bLength
+ APP_USBD_CLASS_DESCRIPTOR_WRITE(APP_USBD_DESCRIPTOR_ENDPOINT); // bDescriptorType = Endpoint
+
+ static app_usbd_class_ep_conf_t const * p_cur_ep = NULL;
+ p_cur_ep = app_usbd_class_iface_ep_get(p_cur_iface, j);
+ APP_USBD_CLASS_DESCRIPTOR_WRITE(app_usbd_class_ep_address_get(p_cur_ep)); // bEndpointAddress
+ APP_USBD_CLASS_DESCRIPTOR_WRITE(APP_USBD_DESCRIPTOR_EP_ATTR_TYPE_BULK); // bmAttributes
+ APP_USBD_CLASS_DESCRIPTOR_WRITE(LSB_16(NRF_DRV_USBD_EPSIZE)); // wMaxPacketSize LSB
+ APP_USBD_CLASS_DESCRIPTOR_WRITE(MSB_16(NRF_DRV_USBD_EPSIZE)); // wMaxPacketSize MSB
+ APP_USBD_CLASS_DESCRIPTOR_WRITE(0x00); // bInterval
+ }
+
+ }
+
+ APP_USBD_CLASS_DESCRIPTOR_END();
+}
+
+const app_usbd_class_methods_t app_usbd_msc_class_methods = {
+ .event_handler = msc_event_handler,
+ .feed_descriptors = msc_feed_descriptors,
+};
+
+
+/**
+ * @brief Block device read done event handler.
+ *
+ * @ref NRF_BLOCK_DEV_EVT_BLK_READ_DONE
+ *
+ * @param p_blk_dev Block device handle
+ * @param p_event Block device event
+ *
+ * */
+static void msc_blockdev_read_done_handler(nrf_block_dev_t const * p_blk_dev,
+ nrf_block_dev_event_t const * p_event)
+{
+ ret_code_t ret;
+
+ app_usbd_class_inst_t const * p_inst = p_event->p_context;
+ app_usbd_msc_t const * p_msc = msc_get(p_inst);
+ app_usbd_msc_ctx_t * p_msc_ctx = msc_ctx_get(p_msc);
+
+ uint32_t blk_cnt = p_msc_ctx->current.blk_count;
+ uint32_t blk_size = p_msc_ctx->current.blk_size;
+
+ /*Save actual request*/
+ size_t req_pos = (p_msc_ctx->current.workbuff_pos != 0) ? 1 : 0;
+
+ p_msc_ctx->current.req = *p_event->p_blk_req;
+
+ p_msc_ctx->current.block_req_in_progress = false;
+
+ /*Decrement transfer counter*/
+ p_msc_ctx->current.blk_idx += blk_cnt;
+ if (p_msc_ctx->current.blk_datasize > blk_size * blk_cnt)
+ {
+ p_msc_ctx->current.blk_datasize -= blk_size * blk_cnt;
+ }
+ else
+ {
+ p_msc_ctx->current.blk_datasize = 0;
+ }
+
+ NRF_LOG_DEBUG("read_done_handler: p_buff: %p, size: %u data size: %u req_pos: %u",
+ (uint32_t)p_event->p_blk_req->p_buff,
+ p_event->p_blk_req->blk_count,
+ p_msc_ctx->current.blk_datasize,
+ req_pos);
+
+ /*Calculate next block request size*/
+ p_msc_ctx->current.blk_count = next_transfer_blkcnt_calc(p_msc, p_msc_ctx);
+
+ if (!p_msc_ctx->current.trans_in_progress)
+ {
+ /*Trigger new transfer.*/
+ p_msc_ctx->current.trans_req_id = req_pos;
+ nrf_block_req_t * p_req = &p_msc_ctx->current.req;
+
+ ret = transfer_in_start(p_inst,
+ p_req->p_buff,
+ p_req->blk_count * blk_size,
+ APP_USBD_MSC_STATE_DATA_IN);
+ if (ret != NRF_SUCCESS)
+ {
+ UNUSED_RETURN_VALUE(status_unsupported_start(p_inst));
+ }
+ else
+ {
+ /*Clear processed block request.*/
+ memset(p_req, 0, sizeof(nrf_block_req_t));
+ p_msc_ctx->current.trans_in_progress = true;
+ }
+
+ }
+
+ if (p_msc_ctx->current.req_busy_mask == APP_USBD_MSC_REQ_BUSY_FULL_MASK)
+ {
+ /* No need to perform next block read request. USB transfers need to catch-up
+ * block device readings */
+ return;
+ }
+
+ if (p_msc_ctx->current.blk_count == 0)
+ {
+ /*All data has been read. No need to trigger new block request.*/
+ return;
+ }
+
+ /*Trigger new block read request*/
+ p_msc_ctx->current.workbuff_pos ^= p_msc->specific.inst.block_buff_size;
+ req_pos = p_msc_ctx->current.workbuff_pos != 0 ? 1 : 0;
+
+ APP_USBD_MSC_REQ_BUSY_SET(p_msc_ctx->current.req_busy_mask, req_pos);
+
+ NRF_BLOCK_DEV_REQUEST(req,
+ p_msc_ctx->current.blk_idx,
+ p_msc_ctx->current.blk_count,
+ ((uint8_t *)p_msc->specific.inst.p_block_buff +
+ p_msc_ctx->current.workbuff_pos));
+
+
+ NRF_LOG_DEBUG("nrf_blk_dev_read_req 2: id: %u, count: %u, left: %u, ptr: %p",
+ req.blk_id,
+ req.blk_count,
+ p_msc_ctx->current.blk_datasize,
+ (uint32_t)req.p_buff);
+
+ ret = nrf_blk_dev_read_req(p_blk_dev, &req);
+ NRF_LOG_DEBUG("nrf_blk_dev_read_req 2: ret: %u", ret);
+
+ if (ret != NRF_SUCCESS)
+ {
+ UNUSED_RETURN_VALUE(status_unsupported_start(p_inst));
+ }
+}
+
+
+/**
+ * @brief Block device write done event handler.
+ *
+ * @ref NRF_BLOCK_DEV_EVT_BLK_WRITE_DONE
+ *
+ * @param p_blk_dev Block device handle
+ * @param p_event Block device event
+ *
+ * */
+static void msc_blockdev_write_done_handler(nrf_block_dev_t const * p_blk_dev,
+ nrf_block_dev_event_t const * p_event)
+{
+ app_usbd_class_inst_t const * p_inst = p_event->p_context;
+ app_usbd_msc_t const * p_msc = msc_get(p_inst);
+ app_usbd_msc_ctx_t * p_msc_ctx = msc_ctx_get(p_msc);
+
+ uint32_t blk_cnt = p_msc_ctx->current.blk_count;
+ uint32_t blk_size = p_msc_ctx->current.blk_size;
+
+ /*Save actual request*/
+ size_t req_pos = (p_event->p_blk_req->p_buff == p_msc->specific.inst.p_block_buff) ? 0 : 1;
+
+ p_msc_ctx->current.req = *p_event->p_blk_req;
+
+ APP_USBD_MSC_REQ_BUSY_CLR(p_msc_ctx->current.req_busy_mask, req_pos);
+ p_msc_ctx->current.block_req_in_progress = false;
+
+ p_msc_ctx->current.blk_idx += blk_cnt;
+
+ if (p_msc_ctx->current.blk_datasize > blk_size * blk_cnt)
+ {
+ p_msc_ctx->current.blk_datasize -= blk_size * blk_cnt;
+ }
+ else
+ {
+ p_msc_ctx->current.blk_datasize = 0;
+ }
+
+ NRF_LOG_DEBUG("write_done_handler: p_buff: %p, size: %u data size: %u req_pos: %u",
+ (uint32_t)p_event->p_blk_req->p_buff,
+ p_event->p_blk_req->blk_count,
+ p_msc_ctx->current.blk_datasize,
+ req_pos);
+
+ if (p_msc_ctx->current.blk_datasize == 0)
+ {
+ p_msc_ctx->current.blk_idx = p_msc_ctx->current.blk_size = 0;
+ UNUSED_RETURN_VALUE(csw_wait_start(p_inst, p_msc_ctx->current.csw_status));
+ return;
+ }
+
+ if (p_msc_ctx->current.blk_datasize <= p_msc_ctx->current.blk_count * blk_size)
+ {
+ size_t pos = p_msc_ctx->current.workbuff_pos;
+ if (p_msc_ctx->current.req_busy_mask != APP_USBD_MSC_REQ_BUSY_FULL_MASK)
+ {
+ pos ^= p_msc->specific.inst.block_buff_size;
+ }
+
+ NRF_BLOCK_DEV_REQUEST(req,
+ p_msc_ctx->current.blk_idx,
+ p_msc_ctx->current.blk_count,
+ ((uint8_t *)p_msc->specific.inst.p_block_buff + pos));
+
+ NRF_LOG_DEBUG("nrf_blk_dev_write_req 2: id: %u, count: %u, left: %u, ptr: %p",
+ req.blk_id,
+ req.blk_count,
+ p_msc_ctx->current.blk_datasize,
+ (uint32_t)req.p_buff);
+
+ p_msc_ctx->current.block_req_in_progress = true;
+ ret_code_t ret = nrf_blk_dev_write_req(p_blk_dev, &req);
+ NRF_LOG_DEBUG("nrf_blk_dev_write_req 2: ret: %u", ret);
+
+ if (ret != NRF_SUCCESS)
+ {
+ UNUSED_RETURN_VALUE(status_unsupported_start(p_inst));
+ }
+
+ return;
+ }
+
+ if (!p_msc_ctx->current.trans_in_progress &&
+ (p_msc_ctx->current.blk_datasize > p_msc_ctx->current.blk_count * blk_size))
+ {
+ size_t size = p_msc_ctx->current.blk_datasize - p_msc_ctx->current.blk_count * blk_size;
+ if (size > p_msc_ctx->current.blk_count * blk_size)
+ {
+ size = p_msc_ctx->current.blk_count * blk_size;
+ }
+
+ if (size > 0)
+ {
+ /*Trigger new transfer.*/
+ p_msc_ctx->current.blk_count = next_transfer_blkcnt_calc(p_msc, p_msc_ctx);
+ ret_code_t ret = transfer_out_start(p_inst,
+ ((uint8_t *)p_msc->specific.inst.p_block_buff +
+ p_msc_ctx->current.workbuff_pos),
+ size,
+ APP_USBD_MSC_STATE_DATA_OUT);
+ if (ret == NRF_SUCCESS)
+ {
+ p_msc_ctx->current.trans_req_id ^= 1;
+ APP_USBD_MSC_REQ_BUSY_SET(p_msc_ctx->current.req_busy_mask,
+ p_msc_ctx->current.trans_req_id);
+ p_msc_ctx->current.workbuff_pos ^= p_msc->specific.inst.block_buff_size;
+ p_msc_ctx->current.trans_in_progress = true;
+ }
+ else
+ {
+ UNUSED_RETURN_VALUE(status_unsupported_start(p_inst));
+ }
+ }
+ }
+}
+
+
+/**
+ * @brief Block device event handler.
+ *
+ * Mass storage block device event handler. Need to be pined to all block devices
+ * from initializer list.
+ *
+ * @param p_blk_dev Block device handle
+ * @param p_event Block device event
+ *
+ * */
+static void msc_blockdev_ev_handler(nrf_block_dev_t const * p_blk_dev,
+ nrf_block_dev_event_t const * p_event)
+{
+ switch (p_event->ev_type)
+ {
+ case NRF_BLOCK_DEV_EVT_INIT:
+ break;
+
+ case NRF_BLOCK_DEV_EVT_UNINIT:
+ break;
+
+ case NRF_BLOCK_DEV_EVT_BLK_READ_DONE:
+ CRITICAL_REGION_ENTER();
+ msc_blockdev_read_done_handler(p_blk_dev, p_event);
+ CRITICAL_REGION_EXIT();
+ break;
+
+ case NRF_BLOCK_DEV_EVT_BLK_WRITE_DONE:
+ CRITICAL_REGION_ENTER();
+ msc_blockdev_write_done_handler(p_blk_dev, p_event);
+ CRITICAL_REGION_EXIT();
+ break;
+
+ default:
+ break;
+ }
+}
+
+/** @} */
+
+bool app_usbd_msc_sync(app_usbd_msc_t const * p_msc)
+{
+ bool rc = true;
+ ret_code_t ret = NRF_SUCCESS;
+
+ for (size_t i = 0; i < p_msc->specific.inst.block_devs_count; ++i)
+ {
+ nrf_block_dev_t const * p_blkd = p_msc->specific.inst.pp_block_devs[i];
+ bool flush_in_progress = true;
+
+ ret = nrf_blk_dev_ioctl(p_blkd,
+ NRF_BLOCK_DEV_IOCTL_REQ_CACHE_FLUSH,
+ &flush_in_progress);
+
+ if ((ret != NRF_SUCCESS) || flush_in_progress)
+ {
+ rc = false;
+ }
+ }
+
+ return rc;
+}
+
+
+#endif //NRF_MODULE_ENABLED(APP_USBD_MSC)
diff --git a/thirdparty/nRF5_SDK_15.0.0_a53641a/components/libraries/usbd/class/msc/app_usbd_msc.h b/thirdparty/nRF5_SDK_15.0.0_a53641a/components/libraries/usbd/class/msc/app_usbd_msc.h
new file mode 100644
index 0000000..b7fcb6a
--- /dev/null
+++ b/thirdparty/nRF5_SDK_15.0.0_a53641a/components/libraries/usbd/class/msc/app_usbd_msc.h
@@ -0,0 +1,193 @@
+/**
+ * Copyright (c) 2016 - 2018, Nordic Semiconductor ASA
+ *
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form, except as embedded into a Nordic
+ * Semiconductor ASA integrated circuit in a product or a software update for
+ * such product, must reproduce the above copyright notice, this list of
+ * conditions and the following disclaimer in the documentation and/or other
+ * materials provided with the distribution.
+ *
+ * 3. Neither the name of Nordic Semiconductor ASA nor the names of its
+ * contributors may be used to endorse or promote products derived from this
+ * software without specific prior written permission.
+ *
+ * 4. This software, with or without modification, must only be used with a
+ * Nordic Semiconductor ASA integrated circuit.
+ *
+ * 5. Any software provided in binary form under this license must not be reverse
+ * engineered, decompiled, modified and/or disassembled.
+ *
+ * THIS SOFTWARE IS PROVIDED BY NORDIC SEMICONDUCTOR ASA "AS IS" AND ANY EXPRESS
+ * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY, NONINFRINGEMENT, AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL NORDIC SEMICONDUCTOR ASA OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
+ * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+#ifndef APP_USBD_MSC_H__
+#define APP_USBD_MSC_H__
+
+#include <stdint.h>
+#include <stdbool.h>
+
+#include "nrf_drv_usbd.h"
+#include "nrf_block_dev.h"
+#include "app_usbd_class_base.h"
+#include "app_usbd.h"
+#include "app_usbd_core.h"
+#include "app_usbd_descriptor.h"
+
+#include "app_usbd_msc_types.h"
+#include "app_usbd_msc_desc.h"
+#include "app_usbd_msc_scsi.h"
+#include "app_usbd_msc_internal.h"
+
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * @defgroup app_usbd_msc USB MSC class
+ * @ingroup app_usbd
+ *
+ * @brief @tagAPI52840 Module with types, definitions, and API used by the USB MSC class.
+ *
+ * @details References:
+ * - "Universal Serial Bus Mass Storage Class, Specification Overview,"
+ * Revision 1.2, USB Implementer's Forum, June 23, 2003.
+ * - "Universal Serial Bus Mass Storage Class, Bulk-Only Transport,"
+ * Revision 1.0, USB Implementer's Forum, September 31, 1999.
+ *
+ * @{
+ */
+
+#ifdef DOXYGEN
+/**
+ * @brief Mass storage class instance type
+ *
+ * @ref APP_USBD_CLASS_TYPEDEF
+ */
+typedef struct { } app_usbd_msc_t;
+#else
+/*lint -save -e10 -e26 -e123 -e505 */
+APP_USBD_CLASS_TYPEDEF(app_usbd_msc, \
+ APP_USBD_MSC_CONFIG(0, (NRF_DRV_USBD_EPIN1, NRF_DRV_USBD_EPOUT1)), \
+ APP_USBD_MSC_INSTANCE_SPECIFIC_DEC, \
+ APP_USBD_MSC_DATA_SPECIFIC_DEC \
+);
+#endif
+
+/*lint -restore*/
+
+
+/*lint -save -e407 */
+
+/**
+ * @brief Events passed to user event handler
+ *
+ * @note Example prototype of user event handler:
+ *
+ * void msc_user_ev_handler(app_usbd_class_inst_t const * p_inst,
+ * app_usbd_msc_user_event_t event);
+ */
+typedef enum app_usbd_msc_user_event_e {
+ APP_USBD_MSC_USER_EVT_NONE, /**< Dummy event to satisfy compilers. */
+} app_usbd_msc_user_event_t;
+
+/*lint -restore*/
+
+/**
+ * @brief Helper macro for defining MSC endpoints
+ *
+ * @param in_number Input endpoint number
+ * @param out_number Output endpoint number
+ * */
+#define APP_USBD_MSC_ENDPOINT_LIST(in_number, out_number) ( \
+ CONCAT_2(NRF_DRV_USBD_EPIN, in_number), \
+ CONCAT_2(NRF_DRV_USBD_EPOUT, out_number) \
+)
+
+/**
+ * @brief Global definition of app_usbd_msc_t class
+ *
+ * @param instance_name Name of global instance
+ * @param interface_number Unique interface number
+ * @param user_ev_handler User event handler (optional)
+ * @param endpoint_list Input endpoint list (@ref nrf_drv_usbd_ep_t)
+ * @param blockdev_list Block device list
+ * @param workbuffer_size Work buffer size (need to fit into all block devices from
+ * block device list)
+ *
+ * @note This macro is just simplified version of @ref APP_USBD_MSC_GLOBAL_DEF_INTERNAL
+ *
+ */
+#define APP_USBD_MSC_GLOBAL_DEF(instance_name, \
+ interface_number, \
+ user_ev_handler, \
+ endpoint_list, \
+ blockdev_list, \
+ workbuffer_size) \
+ APP_USBD_MSC_GLOBAL_DEF_INTERNAL(instance_name, \
+ interface_number, \
+ user_ev_handler, \
+ endpoint_list, \
+ blockdev_list, \
+ workbuffer_size)
+
+
+/**
+ * @@brief Helper function to get class instance from MSC
+ *
+ * @param[in] p_msc MSC instance (declared by @ref APP_USBD_MSC_GLOBAL_DEF)
+ *
+ * @return Base class instance
+ */
+static inline app_usbd_class_inst_t const *
+app_usbd_msc_class_inst_get(app_usbd_msc_t const * p_msc)
+{
+ return &p_msc->base;
+}
+
+/**
+ * @brief Helper function to get MSC from base class instance
+ *
+ * @param[in] p_inst Base class instance
+ *
+ * @return MSC class handle
+ */
+static inline app_usbd_msc_t const * app_usbd_msc_class_get(app_usbd_class_inst_t const * p_inst)
+{
+ return (app_usbd_msc_t const *)p_inst;
+}
+
+/**
+ * @brief Synchronization of all block devices pined to MSC
+ *
+ * @param[in] p_msc MSC instance (declared by @ref APP_USBD_MSC_GLOBAL_DEF)
+ *
+ * @retval true All block devices flushed data
+ * @retval false At least one block device has not flushed data
+ */
+bool app_usbd_msc_sync(app_usbd_msc_t const * p_msc);
+
+/** @} */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* APP_USBD_MSC_H__ */
diff --git a/thirdparty/nRF5_SDK_15.0.0_a53641a/components/libraries/usbd/class/msc/app_usbd_msc_desc.h b/thirdparty/nRF5_SDK_15.0.0_a53641a/components/libraries/usbd/class/msc/app_usbd_msc_desc.h
new file mode 100644
index 0000000..83c3916
--- /dev/null
+++ b/thirdparty/nRF5_SDK_15.0.0_a53641a/components/libraries/usbd/class/msc/app_usbd_msc_desc.h
@@ -0,0 +1,104 @@
+/**
+ * Copyright (c) 2016 - 2018, Nordic Semiconductor ASA
+ *
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form, except as embedded into a Nordic
+ * Semiconductor ASA integrated circuit in a product or a software update for
+ * such product, must reproduce the above copyright notice, this list of
+ * conditions and the following disclaimer in the documentation and/or other
+ * materials provided with the distribution.
+ *
+ * 3. Neither the name of Nordic Semiconductor ASA nor the names of its
+ * contributors may be used to endorse or promote products derived from this
+ * software without specific prior written permission.
+ *
+ * 4. This software, with or without modification, must only be used with a
+ * Nordic Semiconductor ASA integrated circuit.
+ *
+ * 5. Any software provided in binary form under this license must not be reverse
+ * engineered, decompiled, modified and/or disassembled.
+ *
+ * THIS SOFTWARE IS PROVIDED BY NORDIC SEMICONDUCTOR ASA "AS IS" AND ANY EXPRESS
+ * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY, NONINFRINGEMENT, AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL NORDIC SEMICONDUCTOR ASA OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
+ * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+#ifndef APP_USBD_MSC_DESC_H__
+#define APP_USBD_MSC_DESC_H__
+
+#include "app_usbd_descriptor.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * @defgroup app_usbd_msc_desc USB MSC descriptors
+ * @ingroup app_usbd_msc
+ *
+ * @brief @tagAPI52840 Descriptors for the USB MSC class.
+ * @{
+ */
+
+/**
+ * @brief Initializer of interface descriptor for MSC class
+ *
+ * @param interface_number Interface number
+ * @param subclass Subclass, @ref app_usbd_msc_subclass_t
+ * @param protocol Protocol, @ref app_usbd_msc_protocol_t
+ * */
+#define APP_USBD_MSC_INTERFACE_DSC(interface_number, subclass, protocol) \
+ /*.bLength = */ sizeof(app_usbd_descriptor_iface_t), \
+ /*.bDescriptorType = */ APP_USBD_DESCRIPTOR_INTERFACE, \
+ /*.bInterfaceNumber = */ interface_number, \
+ /*.bAlternateSetting = */ 0x00, \
+ /*.bNumEndpoints = */ 2, \
+ /*.bInterfaceClass = */ APP_USBD_MSC_CLASS, \
+ /*.bInterfaceSubClass = */ subclass, \
+ /*.bInterfaceProtocol = */ protocol, \
+ /*.iInterface = 0, */ 0x00, \
+
+
+/**
+ * @brief Initializer of endpoint descriptors for MSC class
+ *
+ * @param endpoint_in IN endpoint
+ * @param endpoint_out OUT endpoint
+ * @param ep_size Endpoint size
+ * */
+#define APP_USBD_MSC_EP_DSC(endpoint_in, endpoint_out, ep_size) \
+ /*.bLength = */ sizeof(app_usbd_descriptor_ep_t), \
+ /*.bDescriptorType = */ APP_USBD_DESCRIPTOR_ENDPOINT, \
+ /*.bEndpointAddress = */ endpoint_in, \
+ /*.bmAttributes = */ APP_USBD_DESCRIPTOR_EP_ATTR_TYPE_BULK, \
+ /*.wMaxPacketSize = */ APP_USBD_U16_TO_RAW_DSC(ep_size), \
+ /*.bInterval = */ 0, \
+ /*.bLength = */ sizeof(app_usbd_descriptor_ep_t), \
+ /*.bDescriptorType = */ APP_USBD_DESCRIPTOR_ENDPOINT, \
+ /*.bEndpointAddress = */ endpoint_out, \
+ /*.bmAttributes = */ APP_USBD_DESCRIPTOR_EP_ATTR_TYPE_BULK, \
+ /*.wMaxPacketSize = */ APP_USBD_U16_TO_RAW_DSC(ep_size), \
+ /*.bInterval = */ 0, \
+
+
+/** @} */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* APP_USBD_MSC_DESC_H__ */
diff --git a/thirdparty/nRF5_SDK_15.0.0_a53641a/components/libraries/usbd/class/msc/app_usbd_msc_internal.h b/thirdparty/nRF5_SDK_15.0.0_a53641a/components/libraries/usbd/class/msc/app_usbd_msc_internal.h
new file mode 100644
index 0000000..c7036fa
--- /dev/null
+++ b/thirdparty/nRF5_SDK_15.0.0_a53641a/components/libraries/usbd/class/msc/app_usbd_msc_internal.h
@@ -0,0 +1,259 @@
+/**
+ * Copyright (c) 2016 - 2018, Nordic Semiconductor ASA
+ *
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form, except as embedded into a Nordic
+ * Semiconductor ASA integrated circuit in a product or a software update for
+ * such product, must reproduce the above copyright notice, this list of
+ * conditions and the following disclaimer in the documentation and/or other
+ * materials provided with the distribution.
+ *
+ * 3. Neither the name of Nordic Semiconductor ASA nor the names of its
+ * contributors may be used to endorse or promote products derived from this
+ * software without specific prior written permission.
+ *
+ * 4. This software, with or without modification, must only be used with a
+ * Nordic Semiconductor ASA integrated circuit.
+ *
+ * 5. Any software provided in binary form under this license must not be reverse
+ * engineered, decompiled, modified and/or disassembled.
+ *
+ * THIS SOFTWARE IS PROVIDED BY NORDIC SEMICONDUCTOR ASA "AS IS" AND ANY EXPRESS
+ * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY, NONINFRINGEMENT, AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL NORDIC SEMICONDUCTOR ASA OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
+ * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+#ifndef APP_USBD_MSC_INTERNAL_H__
+#define APP_USBD_MSC_INTERNAL_H__
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * @defgroup app_usbd_msc_internals USB MSC internals
+ * @ingroup app_usbd_msc
+ *
+ * @brief @tagAPI52840 Internals of the USB MSC class.
+ * @{
+ */
+
+/**
+ * @brief Minimal serial string descriptor length
+ * */
+#define APP_USBD_MSC_MINIMAL_SERIAL_STRING_SIZE (12 + 1)
+
+/**
+ * @brief Forward declaration of Mass Storage Class type
+ *
+ */
+APP_USBD_CLASS_FORWARD(app_usbd_msc);
+
+/*lint -save -e165*/
+/**
+ * @brief Forward declaration of @ref app_usbd_msc_user_event_e
+ *
+ */
+enum app_usbd_msc_user_event_e;
+
+/*lint -restore*/
+
+/**
+ * @brief User event handler
+ *
+ * @param[in] p_inst Class instance
+ * @param[in] event User event
+ *
+ * */
+typedef void (*app_usbd_msc_user_ev_handler_t)(app_usbd_class_inst_t const * p_inst,
+ enum app_usbd_msc_user_event_e event);
+
+/**
+ * @brief MSC part of class instance data
+ */
+typedef struct {
+ void * p_block_buff; //!< Block buffer
+ size_t block_buff_size; //!< Block buffer size (typically 512 bytes)
+
+ nrf_block_dev_t const ** pp_block_devs; //!< Block devices list
+ size_t block_devs_count; //!< Block device list size
+
+ app_usbd_msc_user_ev_handler_t user_ev_handler; //!< User event handler
+
+ app_usbd_msc_subclass_t subclass; //!< MSC subclass
+ app_usbd_msc_protocol_t protocol; //!< MSC protocol
+} app_usbd_msc_inst_t;
+
+/**
+ * @brief Internal module state
+ */
+typedef enum {
+ APP_USBD_MSC_STATE_DISABLED, /**< Internal module state DISABLED */
+ APP_USBD_MSC_STATE_IDLE, /**< Internal module state IDLE */
+ APP_USBD_MSC_STATE_CBW, /**< Internal module state CBW */
+ APP_USBD_MSC_STATE_CMD_IN, /**< Internal module state CMD_IN */
+ APP_USBD_MSC_STATE_CMD_OUT, /**< Internal module state CMD_OUT */
+ APP_USBD_MSC_STATE_DATA_IN, /**< Internal module state DATA_IN */
+ APP_USBD_MSC_STATE_DATA_OUT, /**< Internal module state DATA_OUT */
+ APP_USBD_MSC_STATE_DATA_OUT_WAIT, /**< Internal module state DATA_OUT_WAIT */
+ APP_USBD_MSC_STATE_CSW, /**< Internal module state CSW */
+ APP_USBD_MSC_STATE_UNSUPPORTED, /**< Internal module state UNSUPPORTED */
+ APP_USBD_MSC_STATE_CBW_INVALID, /**< Endpoint is stalled until
+ * the command @ref APP_USBD_MSC_REQ_BULK_RESET */
+ APP_USBD_MSC_STATE_DEVICE_ERROR, /**< Endpoint is stalled and it is required
+ * to send PE error when clearing */
+} app_usbd_msc_state_t;
+
+/**
+ * @brief MSC context
+ *
+ * */
+typedef struct {
+ app_usbd_msc_cbw_t cbw; //!< SCSI command block wrapper
+ app_usbd_msc_csw_t csw; //!< SCSI Command status wrapper
+
+ app_usbd_msc_state_t state; //!< Internal module state
+
+ struct {
+ uint8_t lun; //!< Current transfer blocks: logical unit
+ uint8_t csw_status; //!< Current CSW status
+ uint32_t blk_idx; //!< Current transfer: block index
+ uint32_t blk_datasize; //!< Current transfer: data size to transfer
+ uint32_t blk_size; //!< Current transfer: block size
+ uint32_t blk_count; //!< Current transfer: block count
+ uint32_t residue; //!< @ref app_usbd_msc_csw_t::residue
+
+ bool trans_in_progress; //!< Transfer in progress flag
+ bool block_req_in_progress; //!< Block request in progress flag
+ size_t workbuff_pos; //!< Current buffer offset (double buffering mode)
+ uint8_t req_busy_mask; //!< Request bust mask (double buffering mode)
+ uint8_t trans_req_id; //!< Current transfered request (double buffering mode)
+
+ nrf_block_req_t req; //!< Last processed block req (double buffering mode)
+ } current;
+
+ size_t resp_len; //!< Response length
+
+ /*SCSI response container*/
+ union {
+ app_usbd_scsi_cmd_inquiry_resp_t inquiry; //!< @ref APP_USBD_SCSI_CMD_INQUIRY response
+ app_usbd_scsi_cmd_requestsense_resp_t requestsense; //!< @ref APP_USBD_SCSI_CMD_REQUESTSENSE response
+ app_usbd_scsi_cmd_readcapacity10_resp_t readcapacity10; //!< @ref APP_USBD_SCSI_CMD_READCAPACITY10 response
+ app_usbd_scsi_cmd_modesense6_resp_t modesense6; //!< @ref APP_USBD_SCSI_CMD_MODESENSE6 response
+ app_usbd_scsi_cmd_modesense10_resp_t modesense10; //!< @ref APP_USBD_SCSI_CMD_MODESENSE10 response
+ } scsi_resp;
+
+ uint16_t blk_dev_init_mask; //!< Block devices init mask
+} app_usbd_msc_ctx_t;
+
+
+/**
+ * @brief MSC configuration macro
+ *
+ * Used by @ref APP_USBD_MSC_GLOBAL_DEF
+ *
+ * @param iface Interface number
+ * @param endpoints Endpoint list
+ * */
+#define APP_USBD_MSC_CONFIG(iface, endpoints) ((iface, BRACKET_EXTRACT(endpoints)))
+
+
+/**
+ * @brief Specific class constant data for MSC
+ *
+ * @ref app_usbd_msc_inst_t
+ */
+#define APP_USBD_MSC_INSTANCE_SPECIFIC_DEC app_usbd_msc_inst_t inst;
+
+/**
+ * @brief Configures MSC instance
+ *
+ * @param block_devs Block devices list
+ * @param block_buff Block buffer
+ * @param user_event_handler User event handler
+ */
+#define APP_USBD_MSC_INST_CONFIG(block_devs, block_buff, user_event_handler) \
+ .inst = { \
+ .pp_block_devs = block_devs, \
+ .block_devs_count = ARRAY_SIZE(block_devs), \
+ .p_block_buff = block_buff, \
+ .block_buff_size = sizeof(block_buff) / 2, \
+ .user_ev_handler = user_event_handler, \
+ .subclass = APP_USBD_MSC_SUBCLASS_TRANSPARENT, \
+ .protocol = APP_USBD_MSC_PROTOCOL_BULK, \
+ }
+
+/**
+ * @brief Specific class data for MSC
+ *
+ * @ref app_usbd_msc_ctx_t
+ * */
+#define APP_USBD_MSC_DATA_SPECIFIC_DEC app_usbd_msc_ctx_t ctx;
+
+
+/**
+ * @brief MSC descriptors config macro
+ *
+ * @param interface_number Interface number
+ * @param ... Extracted endpoint list
+ * */
+#define APP_USBD_MSC_DSC_CONFIG(interface_number, ...) { \
+ APP_USBD_MSC_INTERFACE_DSC(interface_number, \
+ APP_USBD_MSC_SUBCLASS_TRANSPARENT, \
+ APP_USBD_MSC_PROTOCOL_BULK) \
+ APP_USBD_MSC_EP_DSC(GET_VA_ARG_1(__VA_ARGS__), \
+ GET_VA_ARG_1(GET_ARGS_AFTER_1(__VA_ARGS__)), \
+ 64) \
+}
+
+/**
+ * @brief Public MSC class interface
+ *
+ * */
+extern const app_usbd_class_methods_t app_usbd_msc_class_methods;
+
+/**
+ * @brief Global definition of mass storage class instance
+ */
+#define APP_USBD_MSC_GLOBAL_DEF_INTERNAL(instance_name, \
+ interface_number, \
+ user_ev_handler, \
+ endpoint_list, \
+ blockdev_list, \
+ workbuffer_size) \
+ static const nrf_block_dev_t * CONCAT_2(instance_name, _blkdevs)[] = \
+ { BRACKET_EXTRACT(blockdev_list) }; \
+ static uint32_t CONCAT_2(instance_name, _block)[2 *(workbuffer_size) / sizeof(uint32_t)]; \
+ APP_USBD_CLASS_INST_GLOBAL_DEF( \
+ instance_name, \
+ app_usbd_msc, \
+ &app_usbd_msc_class_methods, \
+ APP_USBD_MSC_CONFIG(interface_number, endpoint_list), \
+ (APP_USBD_MSC_INST_CONFIG(CONCAT_2(instance_name, _blkdevs), \
+ CONCAT_2(instance_name, _block), \
+ user_ev_handler)) \
+ )
+
+
+/** @} */
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* APP_USBD_MSC_INTERNAL_H__ */
diff --git a/thirdparty/nRF5_SDK_15.0.0_a53641a/components/libraries/usbd/class/msc/app_usbd_msc_scsi.h b/thirdparty/nRF5_SDK_15.0.0_a53641a/components/libraries/usbd/class/msc/app_usbd_msc_scsi.h
new file mode 100644
index 0000000..8379a8c
--- /dev/null
+++ b/thirdparty/nRF5_SDK_15.0.0_a53641a/components/libraries/usbd/class/msc/app_usbd_msc_scsi.h
@@ -0,0 +1,329 @@
+/**
+ * Copyright (c) 2016 - 2018, Nordic Semiconductor ASA
+ *
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form, except as embedded into a Nordic
+ * Semiconductor ASA integrated circuit in a product or a software update for
+ * such product, must reproduce the above copyright notice, this list of
+ * conditions and the following disclaimer in the documentation and/or other
+ * materials provided with the distribution.
+ *
+ * 3. Neither the name of Nordic Semiconductor ASA nor the names of its
+ * contributors may be used to endorse or promote products derived from this
+ * software without specific prior written permission.
+ *
+ * 4. This software, with or without modification, must only be used with a
+ * Nordic Semiconductor ASA integrated circuit.
+ *
+ * 5. Any software provided in binary form under this license must not be reverse
+ * engineered, decompiled, modified and/or disassembled.
+ *
+ * THIS SOFTWARE IS PROVIDED BY NORDIC SEMICONDUCTOR ASA "AS IS" AND ANY EXPRESS
+ * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY, NONINFRINGEMENT, AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL NORDIC SEMICONDUCTOR ASA OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
+ * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+#ifndef APP_USBD_MSC_SCSI_H__
+#define APP_USBD_MSC_SCSI_H__
+
+#include "app_util.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * @defgroup app_usbd_msc_scsi USB MSC SCSI data structures
+ * @ingroup app_usbd_msc
+ *
+ * @brief @tagAPI52840 USB MSC SCSI data structures.
+ *
+ * @details Reference specifications:
+ * - "Reduced Block Commands (Revision 10a)" American National Standard
+ * for Information Technology, August 18, 1999
+ * - "SCSI Primary Commands - 4 (SPC-4)," American National Standard
+ * for Information Technology, July 19, 2008
+ * - "SCSI Block Commands -2 (SBC-2)," American National Standard
+ * for Information Technology, November 13, 2004
+ * - NuttX source code - Real-time Operating System: http://nuttx.org/
+ * Gregory Nutt <gnutt@nuttx.org>
+ *
+ * @{
+ */
+
+/**
+ * @brief SCSI command set
+ *
+ * Mandatory (and some optional) commands required by SBC-2.
+ *
+ */
+typedef enum {
+ APP_USBD_SCSI_CMD_TESTUNITREADY = 0x00, /**< TESTUNITREADY */
+ APP_USBD_SCSI_CMD_REQUESTSENSE = 0x03, /**< REQUESTSENSE */
+ APP_USBD_SCSI_CMD_FORMAT_UNIT = 0x04, /**< FORMAT_UNIT */
+ APP_USBD_SCSI_CMD_READ6 = 0x08, /**< READ6 */
+ APP_USBD_SCSI_CMD_WRITE6 = 0x0a, /**< WRITE6 */
+ APP_USBD_SCSI_CMD_INQUIRY = 0x12, /**< INQUIRY */
+ APP_USBD_SCSI_CMD_MODESELECT6 = 0x15, /**< MODESELECT6 */
+ APP_USBD_SCSI_CMD_MODESENSE6 = 0x1a, /**< MODESENSE6 */
+ APP_USBD_SCSI_CMD_STARTSTOPUNIT = 0x1b, /**< STARTSTOPUNIT */
+ APP_USBD_SCSI_CMD_SENDDIAGNOSTIC = 0x1d, /**< SENDDIAGNOSTIC */
+ APP_USBD_SCSI_CMD_PREVENTMEDIAREMOVAL = 0x1e, /**< PREVENTMEDIAREMOVAL */
+ APP_USBD_SCSI_CMD_READCAPACITY10 = 0x25, /**< READCAPACITY10 */
+ APP_USBD_SCSI_CMD_READ10 = 0x28, /**< READ10 */
+ APP_USBD_SCSI_CMD_WRITE10 = 0x2a, /**< WRITE10 */
+ APP_USBD_SCSI_CMD_MODESELECT10 = 0x55, /**< MODESELECT10 */
+ APP_USBD_SCSI_CMD_MODESENSE10 = 0x5a, /**< MODESENSE10 */
+} app_usbd_scsi_cmd_t;
+
+
+#pragma pack(push, 1)
+
+/**
+ * @brief Payload of @ref APP_USBD_SCSI_CMD_REQUESTSENSE command
+ */
+typedef struct {
+ uint8_t opcode; //!< @ref APP_USBD_SCSI_CMD_REQUESTSENSE
+ uint8_t flags; //!< Flags
+ uint8_t reserved[2]; //!< Reserved
+ uint8_t alloclen; //!< Allocation length
+ uint8_t control; //!< Control
+} app_usbd_scsi_cmd_requestsense_t;
+
+#define APP_USBD_SCSI_CMD_REQSENSE_CODE_VALID 0x80 /**< @ref app_usbd_scsi_cmd_requestsense_resp_t::code */
+#define APP_USBD_SCSI_CMD_REQSENSE_CODE_CURRENT 0x70 /**< @ref app_usbd_scsi_cmd_requestsense_resp_t::code */
+#define APP_USBD_SCSI_CMD_REQSENSE_CODE_DEFERRED 0x71 /**< @ref app_usbd_scsi_cmd_requestsense_resp_t::code */
+#define APP_USBD_SCSI_CMD_REQSENSE_CODE_CURRENTDESC 0x72 /**< @ref app_usbd_scsi_cmd_requestsense_resp_t::code */
+#define APP_USBD_SCSI_CMD_REQSENSE_CODE_DEFERREDDESC 0x73 /**< @ref app_usbd_scsi_cmd_requestsense_resp_t::code */
+
+#define APP_USBD_SCSI_CMD_REQSENSE_FLAG_FILEMARK 0x80 /**< Bits 7 @ref app_usbd_scsi_cmd_requestsense_resp_t::flags */
+#define APP_USBD_SCSI_CMD_REQSENSE_FLAG_EOM 0x40 /**< Bits 6 @ref app_usbd_scsi_cmd_requestsense_resp_t::flags */
+#define APP_USBD_SCSI_CMD_REQSENSE_FLAG_ILI 0x20 /**< Bits 5 @ref app_usbd_scsi_cmd_requestsense_resp_t::flags */
+#define APP_USBD_SCSI_CMD_REQSENSE_FLAG_RESERVED 0x10 /**< Bits 4 @ref app_usbd_scsi_cmd_requestsense_resp_t::flags */
+
+#define APP_USBD_SCSI_CMD_REQSENSE_FLAG_NOSENSE 0x00 /**< Bits 3...0 @ref app_usbd_scsi_cmd_requestsense_resp_t::flags */
+#define APP_USBD_SCSI_CMD_REQSENSE_FLAG_RECOVEREDERROR 0x01 /**< Bits 3...0 @ref app_usbd_scsi_cmd_requestsense_resp_t::flags */
+#define APP_USBD_SCSI_CMD_REQSENSE_FLAG_NOTREADY 0x02 /**< Bits 3...0 @ref app_usbd_scsi_cmd_requestsense_resp_t::flags */
+#define APP_USBD_SCSI_CMD_REQSENSE_FLAG_MEDIUMERROR 0x03 /**< Bits 3...0 @ref app_usbd_scsi_cmd_requestsense_resp_t::flags */
+#define APP_USBD_SCSI_CMD_REQSENSE_FLAG_HARDWAREERROR 0x04 /**< Bits 3...0 @ref app_usbd_scsi_cmd_requestsense_resp_t::flags */
+#define APP_USBD_SCSI_CMD_REQSENSE_FLAG_ILLEGALREQUEST 0x05 /**< Bits 3...0 @ref app_usbd_scsi_cmd_requestsense_resp_t::flags */
+#define APP_USBD_SCSI_CMD_REQSENSE_FLAG_UNITATTENTION 0x06 /**< Bits 3...0 @ref app_usbd_scsi_cmd_requestsense_resp_t::flags */
+#define APP_USBD_SCSI_CMD_REQSENSE_FLAG_DATAPROTECT 0x07 /**< Bits 3...0 @ref app_usbd_scsi_cmd_requestsense_resp_t::flags */
+#define APP_USBD_SCSI_CMD_REQSENSE_FLAG_BLANKCHECK 0x08 /**< Bits 3...0 @ref app_usbd_scsi_cmd_requestsense_resp_t::flags */
+#define APP_USBD_SCSI_CMD_REQSENSE_FLAG_VENDORSPECIFIC 0x09 /**< Bits 3...0 @ref app_usbd_scsi_cmd_requestsense_resp_t::flags */
+#define APP_USBD_SCSI_CMD_REQSENSE_FLAG_ABORTEDCOMMAND 0x0b /**< Bits 3...0 @ref app_usbd_scsi_cmd_requestsense_resp_t::flags */
+
+
+#define APP_USBD_SCSI_CMD_TESTUNITREADY_LEN 6 /**< @ref APP_USBD_SCSI_CMD_TESTUNITREADY command length*/
+
+/**
+ * @brief Payload of @ref APP_USBD_SCSI_CMD_REQUESTSENSE response
+ */
+typedef struct {
+ uint8_t code; //!< Response code: APP_USBD_SCSI_CMD_REQSENSE_CODE_*
+ uint8_t obsolete; //!< Obsolete
+ uint8_t flags; //!< APP_USBD_SCSI_CMD_REQSENSE_FLAG_*
+ uint8_t info[4]; //!< Information
+ uint8_t len; //!< Additional length
+ uint8_t cmdinfo[4]; //!< Command-specific information
+ uint8_t code2; //!< Additional sense code
+ uint8_t qual2; //!< Additional sense code qualifier
+ uint8_t fru; //!< Field replacement unit code
+ uint8_t key[3]; //!< Sense key specific
+} app_usbd_scsi_cmd_requestsense_resp_t;
+
+/**
+ * @brief Payload of @ref APP_USBD_SCSI_CMD_INQUIRY command
+ */
+typedef struct {
+ uint8_t opcode; //!< @ref APP_USBD_SCSI_CMD_INQUIRY
+ uint8_t flags; //!< Command flags
+ uint8_t pagecode; //!< Page code
+ uint8_t alloclen[2]; //!< Allocation length
+ uint8_t control; //!< Control
+} app_usbd_scsi_cmd_inquiry_t;
+
+#define APP_USBD_MSC_SCSI_INQ_QUAL_CONNECTED 0x00 /**< Peripheral connected */
+#define APP_USBD_MSC_SCSI_INQ_QUAL_NOT_CONN 0x20 /**< Peripheral not connected */
+#define APP_USBD_MSC_SCSI_INQ_QUAL_NOT_SUPP 0x60 /**< Peripheral not supported */
+
+#define APP_USBD_MSC_SCSI_INQ_TYPE_DIR_ACCESS 0x00 /**< Direct Access (SBC) */
+#define APP_USBD_MSC_SCSI_INQ_TYPE_SEQ_ACCESS 0x01 /**< Sequential Access */
+#define APP_USBD_MSC_SCSI_INQ_TYPE_PRINTER 0x02 /**< Printer */
+#define APP_USBD_MSC_SCSI_INQ_TYPE_PROCESSOR 0x03 /**< Processor device */
+#define APP_USBD_MSC_SCSI_INQ_TYPE_WRITE_ONCE 0x04 /**< Write-once device */
+#define APP_USBD_MSC_SCSI_INQ_TYPE_CD_DVD 0x05 /**< CD/DVD device */
+#define APP_USBD_MSC_SCSI_INQ_TYPE_OPTICAL 0x07 /**< Optical Memory */
+#define APP_USBD_MSC_SCSI_INQ_TYPE_MC 0x08 /**< Medium Changer */
+#define APP_USBD_MSC_SCSI_INQ_TYPE_ARRAY 0x0c /**< Storage Array Controller */
+#define APP_USBD_MSC_SCSI_INQ_TYPE_ENCLOSURE 0x0d /**< Enclosure Services */
+#define APP_USBD_MSC_SCSI_INQ_TYPE_RBC 0x0e /**< Simplified Direct Access */
+#define APP_USBD_MSC_SCSI_INQ_TYPE_OCRW 0x0f /**< Optical card reader/writer */
+#define APP_USBD_MSC_SCSI_INQ_TYPE_BCC 0x10 /**< Bridge Controller Commands */
+#define APP_USBD_MSC_SCSI_INQ_TYPE_OSD 0x11 /**< Object-based Storage */
+#define APP_USBD_MSC_SCSI_INQ_TYPE_NONE 0x1f /**< No Peripheral */
+
+
+#define APP_USBD_MSC_SCSI_INQ_FLAG1_RMB 0x80 /**< Removable Medium */
+
+#define APP_USBD_SCSI_INQ_VER_NONE 0x00 /**< No standards conformance */
+#define APP_USBD_SCSI_INQ_VER_SPC 0x03 /**< SCSI Primary Commands (link to SBC) */
+#define APP_USBD_SCSI_INQ_VER_SPC2 0x04 /**< SCSI Primary Commands - 2 (link to SBC-2)*/
+#define APP_USBD_SCSI_INQ_VER_SPC3 0x05 /**< SCSI Primary Commands - 3 (link to SBC-2)*/
+#define APP_USBD_SCSI_INQ_VER_SPC4 0x06 /**< SCSI Primary Commands - 4 (link to SBC-3)*/
+
+#define APP_USBD_MSC_SCSI_INQ_FLAG2_NORMACA 0x20 /**< Normal ACA Supported */
+#define APP_USBD_MSC_SCSI_INQ_FLAG2_HISUP 0x10 /**< Hierarchal LUN addressing */
+#define APP_USBD_MSC_SCSI_INQ_FLAG2_RSP_SPC2 0x02 /**< SPC-2 / SPC-3 response format*/
+/**
+ * @brief Payload of @ref APP_USBD_SCSI_CMD_INQUIRY response
+ */
+typedef struct {
+ uint8_t qualtype; //!< Bits 5-7: Peripheral qualifier; Bits 0-4: Peripheral device type
+ uint8_t flags1; //!< Flags 1
+ uint8_t version; //!< Version
+ uint8_t flags2; //!< Flags 2
+ uint8_t len; //!< Additional length
+ uint8_t flags3; //!< Flags 3
+ uint8_t flags4; //!< Flags 4
+ uint8_t flags5; //!< Flags 5
+ uint8_t vendorid[8]; //!< T10 Vendor Identification
+ uint8_t productid[16]; //!< Product Identification
+ uint8_t revision[4]; //!< Product Revision Level
+} app_usbd_scsi_cmd_inquiry_resp_t;
+
+/**
+ * @brief Payload of @ref APP_USBD_SCSI_CMD_READ6 command
+ */
+typedef struct {
+ uint8_t opcode; //!< @ref APP_USBD_SCSI_CMD_READ6
+ uint8_t mslba; //!< Bits 5-7: reserved; Bits 0-6: MS Logical Block Address (LBA)
+ uint8_t lslba[2]; //!< LS Logical Block Address (LBA)
+ uint8_t xfrlen; //!< Transfer length (in contiguous logical blocks)
+ uint8_t control; //!< Control
+} app_usbd_scsi_cmd_read6_t;
+
+/**
+ * @brief Payload of @ref APP_USBD_SCSI_CMD_WRITE6 command
+ */
+typedef struct {
+ uint8_t opcode; //!< @ref APP_USBD_SCSI_CMD_WRITE6
+ uint8_t mslba; //!< Bits 5-7: reserved; Bits 0-6: MS Logical Block Address (LBA)
+ uint8_t lslba[2]; //!< LS Logical Block Address (LBA)
+ uint8_t xfrlen; //!< Transfer length (in contiguous logical blocks)
+ uint8_t control; //!< Control
+} app_usbd_scsi_cmd_write6_t;
+
+/**
+ * @brief Payload of @ref APP_USBD_SCSI_CMD_MODESENSE6 command
+ */
+typedef struct {
+ uint8_t opcode; //!<* @ref APP_USBD_SCSI_CMD_MODESENSE6
+ uint8_t flags; //!<* Flags
+ uint8_t pcpgcode; //!<* Bits 6-7: PC, bits 0-5: page code
+ uint8_t subpgcode; //!<* subpage code
+ uint8_t alloclen; //!<* Allocation length
+ uint8_t control; //!<* Control
+} app_usbd_scsi_cmd_modesense6_t;
+
+/**
+ * @brief Payload of @ref APP_USBD_SCSI_CMD_MODESENSE6 response
+ */
+typedef struct {
+ uint8_t mdlen; //!< Mode data length
+ uint8_t type; //!< Medium type
+ uint8_t param; //!< Device-specific parameter
+ uint8_t bdlen; //!< Block descriptor length
+} app_usbd_scsi_cmd_modesense6_resp_t;
+
+/**
+ * @brief Payload of @ref APP_USBD_SCSI_CMD_READCAPACITY10 command
+ */
+typedef struct {
+ uint8_t opcode; //!< @ref APP_USBD_SCSI_CMD_READCAPACITY10
+ uint8_t reserved1; //!< Reserved field
+ uint8_t lba[4]; //!< Logical block address (LBA)
+ uint8_t reserved2[2]; //!< Reserved field
+ uint8_t pmi; //!< Bits 1-7 Reserved; Bit 0: PMI
+ uint8_t control; //!< Control
+} app_usbd_scsi_cmd_readcapacity10_t;
+
+/**
+ * @brief Payload of @ref APP_USBD_SCSI_CMD_READCAPACITY10 response
+ */
+typedef struct {
+ uint8_t lba[4]; //!< Returned logical block address (LBA)
+ uint8_t blklen[4]; //!< Logical block length (in bytes)
+} app_usbd_scsi_cmd_readcapacity10_resp_t;
+
+/**
+ * @brief Payload of @ref APP_USBD_SCSI_CMD_READ10 command
+ */
+typedef struct {
+ uint8_t opcode; //!< @ref APP_USBD_SCSI_CMD_READ10
+ uint8_t flags; //!< Command flags
+ uint8_t lba[4]; //!< Logical Block Address (LBA)
+ uint8_t groupno; //!< Bits 5-7: reserved; Bits 0-6: group number
+ uint8_t xfrlen[2]; //!< Transfer length (in contiguous logical blocks)
+ uint8_t control; //!< Control
+} app_usbd_scsi_cmd_read10_t;
+
+/**
+ * @brief Payload of @ref APP_USBD_SCSI_CMD_WRITE10 command
+ */
+typedef struct {
+ uint8_t opcode; //!< @ref APP_USBD_SCSI_CMD_WRITE10
+ uint8_t flags; //!< Command flags
+ uint8_t lba[4]; //!< Logical Block Address (LBA)
+ uint8_t groupno; //!< Bits 5-7: reserved; Bits 0-6: group number
+ uint8_t xfrlen[2]; //!< Transfer length (in contiguous logical blocks)
+ uint8_t control; //!< Control
+} app_usbd_scsi_cmd_write10_t;
+
+/**
+ * @brief Payload of @ref APP_USBD_SCSI_CMD_MODESENSE10 command
+ */
+typedef struct {
+ uint8_t opcode; //!< @ref APP_USBD_SCSI_CMD_MODESENSE10
+ uint8_t flags; //!< Flags
+ uint8_t pcpgcode; //!< Bits 6-7: PC, bits 0-5: page code
+ uint8_t subpgcode; //!< Subpage code
+ uint8_t reserved[3]; //!< Reserved
+ uint8_t alloclen[2]; //!< Allocation length
+ uint8_t control; //!< Control
+} app_usbd_scsi_cmd_modesense10_t;
+
+/**
+ * @brief Payload of @ref APP_USBD_SCSI_CMD_MODESENSE10 response
+ */
+typedef struct {
+ uint8_t mdlen[2]; //!< Mode data length
+ uint8_t type; //!< Medium type
+ uint8_t param; //!< Device-specific parameter
+ uint8_t reserved[2]; //!< Reserved
+ uint8_t bdlen[2]; //!< Block descriptor length
+} app_usbd_scsi_cmd_modesense10_resp_t;
+
+#pragma pack(pop)
+
+/** @} */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* APP_USBD_MSC_SCSI_H__ */
diff --git a/thirdparty/nRF5_SDK_15.0.0_a53641a/components/libraries/usbd/class/msc/app_usbd_msc_types.h b/thirdparty/nRF5_SDK_15.0.0_a53641a/components/libraries/usbd/class/msc/app_usbd_msc_types.h
new file mode 100644
index 0000000..96a6431
--- /dev/null
+++ b/thirdparty/nRF5_SDK_15.0.0_a53641a/components/libraries/usbd/class/msc/app_usbd_msc_types.h
@@ -0,0 +1,141 @@
+/**
+ * Copyright (c) 2016 - 2018, Nordic Semiconductor ASA
+ *
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form, except as embedded into a Nordic
+ * Semiconductor ASA integrated circuit in a product or a software update for
+ * such product, must reproduce the above copyright notice, this list of
+ * conditions and the following disclaimer in the documentation and/or other
+ * materials provided with the distribution.
+ *
+ * 3. Neither the name of Nordic Semiconductor ASA nor the names of its
+ * contributors may be used to endorse or promote products derived from this
+ * software without specific prior written permission.
+ *
+ * 4. This software, with or without modification, must only be used with a
+ * Nordic Semiconductor ASA integrated circuit.
+ *
+ * 5. Any software provided in binary form under this license must not be reverse
+ * engineered, decompiled, modified and/or disassembled.
+ *
+ * THIS SOFTWARE IS PROVIDED BY NORDIC SEMICONDUCTOR ASA "AS IS" AND ANY EXPRESS
+ * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY, NONINFRINGEMENT, AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL NORDIC SEMICONDUCTOR ASA OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
+ * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+#ifndef APP_USBD_MSC_TYPES_H__
+#define APP_USBD_MSC_TYPES_H__
+
+#include "app_util.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * @defgroup app_usbd_msc_types USB MSC types
+ * @ingroup app_usbd_msc
+ *
+ * @brief @tagAPI52840 Types used in the USB MSC class.
+ * @{
+ */
+
+/** @brief MSC class definition in interface descriptor
+ *
+ * @ref app_usbd_descriptor_iface_t::bInterfaceClass
+ * */
+#define APP_USBD_MSC_CLASS 0x08
+
+/**
+ * @brief MSC subclass possible value
+ */
+typedef enum {
+ APP_USBD_MSC_SUBCLASS_RBC = 0x01, /**< Reduced Block Commands */
+ APP_USBD_MSC_SUBCLASS_ATAPI = 0x02, /**< CD/DVD devices */
+ APP_USBD_MSC_SUBCLASS_QIC_157 = 0x03, /**< Tape devices */
+ APP_USBD_MSC_SUBCLASS_UFI = 0x04, /**< Floppy disk drives */
+ APP_USBD_MSC_SUBCLASS_SFF_8070I = 0x05, /**< Floppy disk drives */
+ APP_USBD_MSC_SUBCLASS_TRANSPARENT = 0x06, /**< Determined by INQUIRY */
+} app_usbd_msc_subclass_t;
+
+/**
+ * @brief MSC protocol possible value
+ *
+ * @note The USB Mass Storage Class Control/Bulk/Interrupt (CBI) Transport specification is approved
+ * for use only with full-speed floppy disk drives. CBI shall not be used in high-speed
+ * capable devices.
+ */
+typedef enum {
+ APP_USBD_MSC_PROTOCOL_CBI = 0x00, /**< Command/Bulk/Interrupt */
+ APP_USBD_MSC_PROTOCOL_CBI_ALT = 0x01, /**< W/o command completion */
+ APP_USBD_MSC_PROTOCOL_BULK = 0x50, /**< Bulk-only */
+} app_usbd_msc_protocol_t;
+
+/**
+ * @brief MSC USB requests @ref nrf_drv_usbd_setup_t::bmRequestType
+ *
+ * @note Requests are limited only to @ref APP_USBD_MSC_PROTOCOL_BULK protocol type.
+ */
+typedef enum {
+ APP_USBD_MSC_REQ_BULK_RESET = 0xFF, /**< Mass Storage Reset */
+ APP_USBD_MSC_REQ_GET_MAX_LUN = 0xFE, /**< Get Max LUN */
+} app_usbd_msc_req_t;
+
+#pragma pack(push, 1)
+
+#define APP_USBD_MSC_CBW_SIGNATURE "USBC" /**< CBW signature */
+#define APP_USBD_MSC_CBW_DIRECTION_IN (1u <<7) /**< CBW direction flag */
+
+/**
+ * @brief Command Block Wrapper (CBW)
+ */
+typedef struct {
+ uint8_t signature[4]; /**< "USBC" (hex: 0x43425355 little-endian) */
+ uint8_t tag[4]; /**< Unique command tag */
+ uint8_t datlen[4]; /**< Number of bytes that host expects to transfer */
+ uint8_t flags; /**< Bit 7: Direction=IN */
+ uint8_t lun; /**< Logical Unit Number, equals to @ref app_usbd_msc_inst_t :: block_devs_count*/
+ uint8_t cdb_length; /**< Length of cdb field */
+ uint8_t cdb[16]; /**< Command Data Block payload */
+} app_usbd_msc_cbw_t;
+
+#define APP_USBD_MSC_CSW_SIGNATURE "USBS" /**< CSW signature */
+
+#define APP_USBD_MSC_CSW_STATUS_PASS 0x00 /**< CSW status: Command Passed */
+#define APP_USBD_MSC_CSW_STATUS_FAIL 0x01 /**< CSW status: Command Failed */
+#define APP_USBD_MSC_CSW_STATUS_PE 0x02 /**< CSW status: Phase Error */
+
+/**
+ * @brief Command Status Wrapper (CSW)
+ */
+typedef struct {
+ uint8_t signature[4]; /**< "USBS" (hex: 0x53425355 little-endian) */
+ uint8_t tag[4]; /**< Unique command tag (@ref app_usbd_msc_cbw_t :: tag) */
+ uint8_t residue[4]; /**< Amount not transferred */
+ uint8_t status; /**< Status of transfer */
+} app_usbd_msc_csw_t;
+
+#pragma pack(pop)
+
+
+/** @} */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* APP_USBD_MSC_TYPES_H__ */