implement tuh_msc_scsi_inquiry() / tuh_msc_read_capacity() / tuh_msc_get_maxlun()

2025-03-21 07:21:00 +00:00 · 2020-10-13 13:23:33 +07:00 · 2020-10-13 13:23:33 +07:00 · 437ccac696
commit 437ccac696
parent 9c07a2a4e2
4 changed files with 96 additions and 105 deletions
--- a/examples/host/cdc_msc_hid/src/msc_app.c
+++ b/examples/host/cdc_msc_hid/src/msc_app.c
@ -30,31 +30,59 @@
 //--------------------------------------------------------------------+
 // MACRO TYPEDEF CONSTANT ENUM DECLARATION
 //--------------------------------------------------------------------+
+static scsi_inquiry_resp_t inquiry_resp;
+static scsi_read_capacity10_resp_t capacity_resp;

+uint32_t block_size;
+uint32_t block_count;
+
+bool capacity_complete_cb(uint8_t dev_addr, msc_cbw_t const* cbw, msc_csw_t const* csw)
+{
+  (void) dev_addr;
+  (void) cbw;
+
+  if (csw->status != 0)
+  {
+    printf("Read Capacity (10) failed\r\n");
+    return false;
+  }
+
+  // Capacity response field: Block size and Last LBA are both Big-Endian
+  block_count = tu_ntohl(capacity_resp.last_lba) + 1;
+  block_size = tu_ntohl(capacity_resp.block_size);
+
+  printf("Disk Size: %lu MB\r\n", block_count / ((1024*1024)/block_size));
+  printf("Block Count = %lu, Block Size: %lu\r\n", block_count, block_size);
+
+  return true;
+}
+
+bool inquiry_complete_cb(uint8_t dev_addr, msc_cbw_t const* cbw, msc_csw_t const* csw)
+{
+  if (csw->status != 0)
+  {
+    printf("Inquiry failed\r\n");
+    return false;
+  }
+
+  // Print out Vendor ID, Product ID and Rev
+  printf("%.8s %.16s rev %.4s\r\n", inquiry_resp.vendor_id, inquiry_resp.product_id, inquiry_resp.product_rev);
+
+  // Read capacity of device
+  tuh_msc_read_capacity(dev_addr, cbw->lun, &capacity_resp, capacity_complete_cb);
+
+  return true;
+}

 //------------- IMPLEMENTATION -------------//
 void tuh_msc_mounted_cb(uint8_t dev_addr)
 {
  printf("A MassStorage device is mounted\r\n");

-  //------------- Disk Information -------------//
-#if 0
-  // SCSI VendorID[8] & ProductID[16] from Inquiry Command
-  uint8_t const* p_vendor  = tuh_msc_get_vendor_name(dev_addr);
-  uint8_t const* p_product = tuh_msc_get_product_name(dev_addr);
+  block_size = block_count = 0;

-  for(uint8_t i=0; i<8; i++) putchar(p_vendor[i]);
-
-  putchar(' ');
-  for(uint8_t i=0; i<16; i++) putchar(p_product[i]);
-  putchar('\n');
-#endif
-
-  uint32_t last_lba = 0;
-  uint32_t block_size = 0;
-  tuh_msc_get_capacity(dev_addr, &last_lba, &block_size);
-  printf("Disk Size: %ld MB\r\n", (last_lba+1)/ ((1024*1024)/block_size) );
-  printf("LBA 0-0x%lX  Block Size: %ld\r\n", last_lba, block_size);
+  uint8_t const lun = 0;
+  tuh_msc_scsi_inquiry(dev_addr, lun, &inquiry_resp, inquiry_complete_cb);
 //
 //  //------------- file system (only 1 LUN support) -------------//
 //  uint8_t phy_disk = dev_addr-1;
--- a/examples/obsolete/host/src/msc_host_app.c
+++ b/examples/obsolete/host/src/msc_host_app.c
@ -64,7 +64,7 @@ void tuh_msc_mounted_cb(uint8_t dev_addr)
  putchar('\n');

  uint32_t last_lba, block_size;
-  tuh_msc_get_capacity(dev_addr, &last_lba, &block_size);
+  tuh_msc_read_capacity(dev_addr, &last_lba, &block_size);
  printf("Disk Size: %d MB\n", (last_lba+1)/ ((1024*1024)/block_size) );
  printf("LBA 0-0x%X  Block Size: %d\n", last_lba, block_size);

--- a/src/class/msc/msc_host.c
+++ b/src/class/msc/msc_host.c
@ -53,11 +53,7 @@ typedef struct

  uint8_t  max_lun;

-  scsi_read_capacity10_resp_t capacity;
-
  volatile bool is_initialized;
-  uint8_t vendor_id[8];
-  uint8_t product_id[16];

  uint8_t stage;
  void*   buffer;
@ -75,6 +71,11 @@ CFG_TUSB_MEM_SECTION TU_ATTR_ALIGNED(4) static uint8_t msch_buffer[sizeof(scsi_i
 //--------------------------------------------------------------------+
 // PUBLIC API
 //--------------------------------------------------------------------+
+uint8_t tuh_msc_get_maxlun(uint8_t dev_addr)
+{
+  return msch_data[dev_addr-1].max_lun;
+}
+
 bool tuh_msc_is_mounted(uint8_t dev_addr)
 {
  return  tuh_device_is_configured(dev_addr) && // is configured can be omitted
@ -87,19 +88,6 @@ bool tuh_msc_is_busy(uint8_t dev_addr)
          hcd_edpt_busy(dev_addr, msch_data[dev_addr-1].ep_in);
 }

-bool tuh_msc_get_capacity(uint8_t dev_addr, uint32_t* p_last_lba, uint32_t* p_block_size)
-{
-  msch_interface_t* p_msc = &msch_data[dev_addr-1];
-
-  if ( !p_msc->is_initialized ) return false;
-  TU_ASSERT(p_last_lba != NULL && p_block_size != NULL);
-
-  (*p_last_lba)   = p_msc->capacity.last_lba;
-  (*p_block_size) = p_msc->capacity.block_size;
-
-  return true;
-}
-
 //--------------------------------------------------------------------+
 // PUBLIC API: SCSI COMMAND
 //--------------------------------------------------------------------+
@ -126,33 +114,46 @@ bool tuh_msc_scsi_command(uint8_t dev_addr, msc_cbw_t const* cbw, void* data, tu
  return true;
 }

-#if 0
-tusb_error_t tusbh_msc_inquiry(uint8_t dev_addr, uint8_t lun, uint8_t *p_data)
+bool tuh_msc_read_capacity(uint8_t dev_addr, uint8_t lun, scsi_read_capacity10_resp_t* response, tuh_msc_complete_cb_t complete_cb)
 {
-  msch_interface_t* p_msch = &msch_data[dev_addr-1];
+  msch_interface_t* p_msc = &msch_data[dev_addr-1];
+  if ( !p_msc->is_initialized ) return false;

-  //------------- Command Block Wrapper -------------//
-  msc_cbw_add_signature(&p_msch->cbw, lun);
-  p_msch->cbw.total_bytes = sizeof(scsi_inquiry_resp_t);
-  p_msch->cbw.dir        = TUSB_DIR_IN_MASK;
-  p_msch->cbw.cmd_len    = sizeof(scsi_inquiry_t);
+  msc_cbw_t cbw = { 0 };
+
+  msc_cbw_add_signature(&cbw, lun);
+  cbw.total_bytes = sizeof(scsi_read_capacity10_resp_t);
+  cbw.dir        = TUSB_DIR_IN_MASK;
+  cbw.cmd_len    = sizeof(scsi_read_capacity10_t);
+  cbw.command[0] = SCSI_CMD_READ_CAPACITY_10;
+
+  TU_ASSERT(tuh_msc_scsi_command(dev_addr, &cbw, response, complete_cb));
+
+  return true;
+}
+
+bool tuh_msc_scsi_inquiry(uint8_t dev_addr, uint8_t lun, scsi_inquiry_resp_t* response, tuh_msc_complete_cb_t complete_cb)
+{
+  msc_cbw_t cbw = { 0 };
+
+  msc_cbw_add_signature(&cbw, lun);
+  cbw.total_bytes = sizeof(scsi_inquiry_resp_t);
+  cbw.dir         = TUSB_DIR_IN_MASK;
+  cbw.cmd_len     = sizeof(scsi_inquiry_t);

-  //------------- SCSI command -------------//
  scsi_inquiry_t const cmd_inquiry =
  {
-      .cmd_code     = SCSI_CMD_INQUIRY,
-      .alloc_length = sizeof(scsi_inquiry_resp_t)
+    .cmd_code     = SCSI_CMD_INQUIRY,
+    .alloc_length = sizeof(scsi_inquiry_resp_t)
  };
+  memcpy(cbw.command, &cmd_inquiry, cbw.cmd_len);

-  memcpy(p_msch->cbw.command, &cmd_inquiry, p_msch->cbw.cmd_len);
+  TU_ASSERT(tuh_msc_scsi_command(dev_addr, &cbw, response, complete_cb));

-  TU_ASSERT_ERR ( send_cbw(dev_addr, p_msch, p_data) );
-
-  return TUSB_ERROR_NONE;
+  return true;
 }
-#endif

-bool tuh_msc_test_unit_ready(uint8_t dev_addr, uint8_t lun,  tuh_msc_complete_cb_t complete_cb)
+bool tuh_msc_test_unit_ready(uint8_t dev_addr, uint8_t lun, tuh_msc_complete_cb_t complete_cb)
 {
  msc_cbw_t cbw = { 0 };
  msc_cbw_add_signature(&cbw, lun);
@ -252,20 +253,12 @@ void msch_init(void)
  tu_memclr(msch_data, sizeof(msch_interface_t)*CFG_TUSB_HOST_DEVICE_MAX);
 }

-
 void msch_close(uint8_t dev_addr)
 {
  tu_memclr(&msch_data[dev_addr-1], sizeof(msch_interface_t));
  tuh_msc_unmounted_cb(dev_addr); // invoke Application Callback
 }

-static bool get_csw(uint8_t dev_addr, msch_interface_t * p_msc)
-{
-  p_msc->stage = MSC_STAGE_STATUS;
-  TU_ASSERT(usbh_edpt_xfer(dev_addr, p_msc->ep_in, (uint8_t*) &p_msc->csw, sizeof(msc_csw_t)));
-  return true;
-}
-
 bool msch_xfer_cb(uint8_t dev_addr, uint8_t ep_addr, xfer_result_t event, uint32_t xferred_bytes)
 {
  msch_interface_t* p_msc = &msch_data[dev_addr-1];
@ -288,12 +281,15 @@ bool msch_xfer_cb(uint8_t dev_addr, uint8_t ep_addr, xfer_result_t event, uint32
      }else
      {
        // Status stage
-        get_csw(dev_addr, p_msc);
+        p_msc->stage = MSC_STAGE_STATUS;
+        TU_ASSERT(usbh_edpt_xfer(dev_addr, p_msc->ep_in, (uint8_t*) &p_msc->csw, sizeof(msc_csw_t)));
      }
    break;

    case MSC_STAGE_DATA:
-      get_csw(dev_addr, p_msc);
+      // Status stage
+      p_msc->stage = MSC_STAGE_STATUS;
+      TU_ASSERT(usbh_edpt_xfer(dev_addr, p_msc->ep_in, (uint8_t*) &p_msc->csw, sizeof(msc_csw_t)));
    break;

    case MSC_STAGE_STATUS:
@ -317,7 +313,6 @@ bool msch_xfer_cb(uint8_t dev_addr, uint8_t ep_addr, xfer_result_t event, uint32
 static bool open_get_maxlun_complete (uint8_t dev_addr, tusb_control_request_t const * request, xfer_result_t result);
 static bool open_test_unit_ready_complete(uint8_t dev_addr, msc_cbw_t const* cbw, msc_csw_t const* csw);
 static bool open_request_sense_complete(uint8_t dev_addr, msc_cbw_t const* cbw, msc_csw_t const* csw);
-static bool open_read_capacity10_complete(uint8_t dev_addr, msc_cbw_t const* cbw, msc_csw_t const* csw);

 bool msch_open(uint8_t rhport, uint8_t dev_addr, tusb_desc_interface_t const *itf_desc, uint16_t *p_length)
 {
@ -331,9 +326,7 @@ bool msch_open(uint8_t rhport, uint8_t dev_addr, tusb_desc_interface_t const *it

  for(uint32_t i=0; i<2; i++)
  {
-    TU_ASSERT(TUSB_DESC_ENDPOINT == ep_desc->bDescriptorType);
-    TU_ASSERT(TUSB_XFER_BULK == ep_desc->bmAttributes.xfer);
-
+    TU_ASSERT(TUSB_DESC_ENDPOINT == ep_desc->bDescriptorType && TUSB_XFER_BULK == ep_desc->bmAttributes.xfer);
    TU_ASSERT(usbh_edpt_open(rhport, dev_addr, ep_desc));

    if ( tu_edpt_dir(ep_desc->bEndpointAddress) == TUSB_DIR_IN )
@ -378,6 +371,7 @@ static bool open_get_maxlun_complete (uint8_t dev_addr, tusb_control_request_t c

  // STALL means zero
  p_msc->max_lun = (XFER_RESULT_SUCCESS == result) ? msch_buffer[0] : 0;
+  p_msc->max_lun++; // MAX LUN is minus 1 by specs

  // MSCU Reset
 #if 0 // not really needed
@ -397,16 +391,6 @@ static bool open_get_maxlun_complete (uint8_t dev_addr, tusb_control_request_t c
  TU_ASSERT( usbh_control_xfer( dev_addr, &new_request, NULL ) );
 #endif

-#if 0
-  //------------- SCSI Inquiry -------------//
-  TU_LOG2("SCSI Inquiry\r\n");
-  tusbh_msc_inquiry(dev_addr, 0, msch_buffer);
-  TU_ASSERT( osal_semaphore_wait(msch_sem_hdl, SCSI_XFER_TIMEOUT) );
-
-  memcpy(p_msc->vendor_id , ((scsi_inquiry_resp_t*) msch_buffer)->vendor_id , 8);
-  memcpy(p_msc->product_id, ((scsi_inquiry_resp_t*) msch_buffer)->product_id, 16);
-#endif
-
  // TODO multiple LUN support
  TU_LOG2("SCSI Test Unit Ready\r\n");
  tuh_msc_test_unit_ready(dev_addr, 0, open_test_unit_ready_complete);
@ -418,18 +402,11 @@ static bool open_test_unit_ready_complete(uint8_t dev_addr, msc_cbw_t const* cbw
 {
  if (csw->status == 0)
  {
-    TU_LOG2("SCSI Read Capacity 10\r\n");
-
    msch_interface_t* p_msc = &msch_data[dev_addr-1];
-    msc_cbw_t new_cbw = { 0 };

-    msc_cbw_add_signature(&new_cbw, cbw->lun);
-    new_cbw.total_bytes = sizeof(scsi_read_capacity10_resp_t);
-    new_cbw.dir        = TUSB_DIR_IN_MASK;
-    new_cbw.cmd_len    = sizeof(scsi_read_capacity10_t);
-    new_cbw.command[0] = SCSI_CMD_READ_CAPACITY_10;
-
-    TU_ASSERT(tuh_msc_scsi_command(dev_addr, &new_cbw, &p_msc->capacity, open_read_capacity10_complete));
+    // Unit is ready, Enumeration is complete
+    p_msc->is_initialized = true; // open complete TODO remove
+    tuh_msc_mounted_cb(dev_addr);
  }else
  {
    // Note: During enumeration, some device fails Test Unit Ready and require a few retries
@ -443,25 +420,9 @@ static bool open_test_unit_ready_complete(uint8_t dev_addr, msc_cbw_t const* cbw

 static bool open_request_sense_complete(uint8_t dev_addr, msc_cbw_t const* cbw, msc_csw_t const* csw)
 {
+  TU_ASSERT(csw->status == 0);
  TU_ASSERT(tuh_msc_test_unit_ready(dev_addr, cbw->lun, open_test_unit_ready_complete));
  return true;
 }

-static bool open_read_capacity10_complete(uint8_t dev_addr, msc_cbw_t const* cbw, msc_csw_t const* csw)
-{
-  TU_ASSERT(csw->status == 0);
-
-  msch_interface_t* p_msc = &msch_data[dev_addr-1];
-
-  // Note: Block size and last LBA are big-endian
-  p_msc->capacity.last_lba = tu_ntohl(p_msc->capacity.last_lba);
-  p_msc->capacity.block_size = tu_ntohl(p_msc->capacity.block_size);
-
-  // Enumeration is complete
-  p_msc->is_initialized = true; // open complete TODO remove
-  tuh_msc_mounted_cb(dev_addr);
-
-  return true;
-}
-
 #endif
--- a/src/class/msc/msc_host.h
+++ b/src/class/msc/msc_host.h
@ -63,9 +63,11 @@ bool          tuh_msc_is_mounted(uint8_t dev_addr);
 */
 bool          tuh_msc_is_busy(uint8_t dev_addr);

+uint8_t tuh_msc_get_maxlun(uint8_t dev_addr);
+
 bool tuh_msc_scsi_command(uint8_t dev_addr, msc_cbw_t const* cbw, void* data, tuh_msc_complete_cb_t complete_cb);

-bool tuh_msc_scsi_inquiry(uint8_t dev_addr, uint8_t lun, void* response, uint32_t len);
+bool tuh_msc_scsi_inquiry(uint8_t dev_addr, uint8_t lun, scsi_inquiry_resp_t* response, tuh_msc_complete_cb_t complete_cb);

 /** \brief      Get SCSI Capacity of MassStorage device
 * \param[in]   dev_addr device address
@ -77,7 +79,7 @@ bool tuh_msc_scsi_inquiry(uint8_t dev_addr, uint8_t lun, void* response, uint32_
 *              to re-send SCSI READ CAPACITY 10 command
 */

-bool tuh_msc_get_capacity(uint8_t dev_addr, uint32_t* p_last_lba, uint32_t* p_block_size);
+bool tuh_msc_read_capacity(uint8_t dev_addr, uint8_t lun, scsi_read_capacity10_resp_t* response, tuh_msc_complete_cb_t complete_cb);

 #if 0
 /** \brief 			Perform SCSI READ 10 command to read data from MassStorage device