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host msc: call read_capacity as part of enumeration
- add tuh_msc_get_block_count(), tuh_msc_get_block_size() - rename tuh_msc_mounted_cb/tuh_msc_unmounted_cb to tuh_msc_mount_cb/tuh_msc_unmount_cb to match device stack naming - change tuh_msc_is_busy() to tuh_msc_ready() - add CFG_TUH_MSC_MAXLUN (default to 4) to hold lun capacities - add host msc configured to for state check.
This commit is contained in:
hathach
parent
386a386345
commit
5108d76136
@ -31,31 +31,6 @@
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// MACRO TYPEDEF CONSTANT ENUM DECLARATION
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//--------------------------------------------------------------------+
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static scsi_inquiry_resp_t inquiry_resp;
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static scsi_read_capacity10_resp_t capacity_resp;
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uint32_t block_size;
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uint32_t block_count;
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bool capacity_complete_cb(uint8_t dev_addr, msc_cbw_t const* cbw, msc_csw_t const* csw)
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{
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(void) dev_addr;
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(void) cbw;
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if (csw->status != 0)
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{
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printf("Read Capacity (10) failed\r\n");
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return false;
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}
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// Capacity response field: Block size and Last LBA are both Big-Endian
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block_count = tu_ntohl(capacity_resp.last_lba) + 1;
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block_size = tu_ntohl(capacity_resp.block_size);
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printf("Disk Size: %lu MB\r\n", block_count / ((1024*1024)/block_size));
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printf("Block Count = %lu, Block Size: %lu\r\n", block_count, block_size);
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return true;
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}
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bool inquiry_complete_cb(uint8_t dev_addr, msc_cbw_t const* cbw, msc_csw_t const* csw)
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{
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@ -68,19 +43,21 @@ bool inquiry_complete_cb(uint8_t dev_addr, msc_cbw_t const* cbw, msc_csw_t const
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// Print out Vendor ID, Product ID and Rev
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printf("%.8s %.16s rev %.4s\r\n", inquiry_resp.vendor_id, inquiry_resp.product_id, inquiry_resp.product_rev);
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// Read capacity of device
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tuh_msc_read_capacity(dev_addr, cbw->lun, &capacity_resp, capacity_complete_cb);
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// Get capacity of device
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uint32_t const block_count = tuh_msc_get_block_count(dev_addr, cbw->lun);
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uint32_t const block_size = tuh_msc_get_block_size(dev_addr, cbw->lun);
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printf("Disk Size: %lu MB\r\n", block_count / ((1024*1024)/block_size));
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printf("Block Count = %lu, Block Size: %lu\r\n", block_count, block_size);
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return true;
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}
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//------------- IMPLEMENTATION -------------//
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void tuh_msc_mounted_cb(uint8_t dev_addr)
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void tuh_msc_mount_cb(uint8_t dev_addr)
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{
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printf("A MassStorage device is mounted\r\n");
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block_size = block_count = 0;
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uint8_t const lun = 0;
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tuh_msc_inquiry(dev_addr, lun, &inquiry_resp, inquiry_complete_cb);
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//
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@ -110,7 +87,7 @@ void tuh_msc_mounted_cb(uint8_t dev_addr)
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// }
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}
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void tuh_msc_unmounted_cb(uint8_t dev_addr)
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void tuh_msc_unmount_cb(uint8_t dev_addr)
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{
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(void) dev_addr;
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printf("A MassStorage device is unmounted\r\n");
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@ -133,11 +110,4 @@ void tuh_msc_unmounted_cb(uint8_t dev_addr)
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// }
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}
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//void tuh_msc_scsi_complete_cb(uint8_t dev_addr, msc_cbw_t const* cbw, msc_csw_t const* csw)
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//{
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// (void) dev_addr;
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// (void) cbw;
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// (void) csw;
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//}
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#endif
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@ -48,7 +48,7 @@ CFG_TUSB_MEM_SECTION static FATFS fatfs[CFG_TUSB_HOST_DEVICE_MAX];
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//--------------------------------------------------------------------+
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// tinyusb callbacks
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//--------------------------------------------------------------------+
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void tuh_msc_mounted_cb(uint8_t dev_addr)
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void tuh_msc_mount_cb(uint8_t dev_addr)
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{
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puts("\na MassStorage device is mounted");
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@ -94,7 +94,7 @@ void tuh_msc_mounted_cb(uint8_t dev_addr)
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}
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}
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void tuh_msc_unmounted_cb(uint8_t dev_addr)
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void tuh_msc_unmount_cb(uint8_t dev_addr)
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{
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puts("\na MassStorage device is unmounted");
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@ -48,7 +48,7 @@ static DSTATUS disk_state[CFG_TUSB_HOST_DEVICE_MAX];
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static DRESULT wait_for_io_complete(uint8_t usb_addr)
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{
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// TODO with RTOS, this should use semaphore instead of blocking
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while ( tuh_msc_is_busy(usb_addr) )
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while ( !tuh_msc_ready(usb_addr) )
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{
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// TODO should have timeout here
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#if CFG_TUSB_OS != OPT_OS_NONE
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@ -47,14 +47,21 @@ enum
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typedef struct
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{
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uint8_t itf_num;
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uint8_t ep_in;
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uint8_t ep_out;
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uint8_t itf_num;
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uint8_t ep_in;
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uint8_t ep_out;
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uint8_t max_lun;
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uint8_t max_lun;
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volatile bool mounted;
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volatile bool configured; // Receive SET_CONFIGURE
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volatile bool mounted; // Enumeration is complete
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struct {
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uint32_t block_size;
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uint32_t block_count;
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} capacity[CFG_TUH_MSC_MAXLUN];
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//------------- SCSI -------------//
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uint8_t stage;
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void* buffer;
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tuh_msc_complete_cb_t complete_cb;
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@ -63,14 +70,15 @@ typedef struct
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msc_csw_t csw;
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}msch_interface_t;
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CFG_TUSB_MEM_SECTION static msch_interface_t msch_data[CFG_TUSB_HOST_DEVICE_MAX];
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CFG_TUSB_MEM_SECTION static msch_interface_t _msch_itf[CFG_TUSB_HOST_DEVICE_MAX];
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// buffer used to read scsi information when mounted, largest response data currently is inquiry
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CFG_TUSB_MEM_SECTION TU_ATTR_ALIGNED(4) static uint8_t msch_buffer[sizeof(scsi_inquiry_resp_t)];
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// buffer used to read scsi information when mounted
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// largest response data currently is inquiry TODO Inquiry is not part of enum anymore
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CFG_TUSB_MEM_SECTION TU_ATTR_ALIGNED(4) static uint8_t _msch_buffer[sizeof(scsi_inquiry_resp_t)];
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static inline msch_interface_t* get_itf(uint8_t dev_addr)
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{
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return &msch_data[dev_addr-1];
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return &_msch_itf[dev_addr-1];
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}
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//--------------------------------------------------------------------+
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@ -82,18 +90,28 @@ uint8_t tuh_msc_get_maxlun(uint8_t dev_addr)
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return p_msc->max_lun;
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}
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uint32_t tuh_msc_get_block_count(uint8_t dev_addr, uint8_t lun)
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{
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msch_interface_t* p_msc = get_itf(dev_addr);
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return p_msc->capacity[lun].block_count;
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}
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uint32_t tuh_msc_get_block_size(uint8_t dev_addr, uint8_t lun)
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{
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msch_interface_t* p_msc = get_itf(dev_addr);
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return p_msc->capacity[lun].block_size;
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}
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bool tuh_msc_mounted(uint8_t dev_addr)
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{
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msch_interface_t* p_msc = get_itf(dev_addr);
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// is configured can be omitted
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return tuh_device_is_configured(dev_addr) && p_msc->mounted;
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return p_msc->mounted;
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}
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bool tuh_msc_is_busy(uint8_t dev_addr)
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bool tuh_msc_ready(uint8_t dev_addr)
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{
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msch_interface_t* p_msc = get_itf(dev_addr);
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return p_msc->mounted && hcd_edpt_busy(dev_addr, p_msc->ep_in);
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return p_msc->mounted && !hcd_edpt_busy(dev_addr, p_msc->ep_in);
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}
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//--------------------------------------------------------------------+
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@ -110,7 +128,7 @@ static inline void cbw_init(msc_cbw_t *cbw, uint8_t lun)
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bool tuh_msc_scsi_command(uint8_t dev_addr, msc_cbw_t const* cbw, void* data, tuh_msc_complete_cb_t complete_cb)
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{
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msch_interface_t* p_msc = get_itf(dev_addr);
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// TU_VERIFY(p_msc->mounted); // TODO part of the enumeration also use scsi command
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TU_VERIFY(p_msc->configured);
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// TODO claim endpoint
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@ -126,8 +144,8 @@ bool tuh_msc_scsi_command(uint8_t dev_addr, msc_cbw_t const* cbw, void* data, tu
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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)
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{
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msch_interface_t* p_msc = get_itf(dev_addr);
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TU_VERIFY(p_msc->mounted);
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msch_interface_t* p_msc = get_itf(dev_addr);
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TU_VERIFY(p_msc->configured);
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msc_cbw_t cbw;
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cbw_init(&cbw, lun);
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@ -142,6 +160,9 @@ bool tuh_msc_read_capacity(uint8_t dev_addr, uint8_t lun, scsi_read_capacity10_r
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bool tuh_msc_inquiry(uint8_t dev_addr, uint8_t lun, scsi_inquiry_resp_t* response, tuh_msc_complete_cb_t complete_cb)
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{
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msch_interface_t* p_msc = get_itf(dev_addr);
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TU_VERIFY(p_msc->mounted);
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msc_cbw_t cbw;
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cbw_init(&cbw, lun);
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@ -161,14 +182,17 @@ bool tuh_msc_inquiry(uint8_t dev_addr, uint8_t lun, scsi_inquiry_resp_t* respons
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bool tuh_msc_test_unit_ready(uint8_t dev_addr, uint8_t lun, tuh_msc_complete_cb_t complete_cb)
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{
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msch_interface_t* p_msc = get_itf(dev_addr);
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TU_VERIFY(p_msc->configured);
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msc_cbw_t cbw;
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cbw_init(&cbw, lun);
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cbw.total_bytes = 0; // Number of bytes
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cbw.dir = TUSB_DIR_OUT;
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cbw.cmd_len = sizeof(scsi_test_unit_ready_t);
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cbw.command[0] = SCSI_CMD_TEST_UNIT_READY;
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cbw.command[1] = lun; // according to wiki TODO need verification
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cbw.total_bytes = 0;
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cbw.dir = TUSB_DIR_OUT;
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cbw.cmd_len = sizeof(scsi_test_unit_ready_t);
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cbw.command[0] = SCSI_CMD_TEST_UNIT_READY;
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cbw.command[1] = lun; // according to wiki TODO need verification
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return tuh_msc_scsi_command(dev_addr, &cbw, NULL, complete_cb);
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}
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@ -179,8 +203,8 @@ bool tuh_msc_request_sense(uint8_t dev_addr, uint8_t lun, void *resposne, tuh_ms
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cbw_init(&cbw, lun);
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cbw.total_bytes = 18; // TODO sense response
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cbw.dir = TUSB_DIR_IN_MASK;
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cbw.cmd_len = sizeof(scsi_request_sense_t);
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cbw.dir = TUSB_DIR_IN_MASK;
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cbw.cmd_len = sizeof(scsi_request_sense_t);
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scsi_request_sense_t const cmd_request_sense =
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{
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@ -201,11 +225,11 @@ bool tuh_msc_read10(uint8_t dev_addr, uint8_t lun, void * buffer, uint32_t lba,
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msc_cbw_t cbw;
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cbw_init(&cbw, lun);
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cbw.total_bytes = 512*block_count; // Number of bytes TODO get block size from READ CAPACITY 10
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cbw.dir = TUSB_DIR_IN_MASK;
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cbw.cmd_len = sizeof(scsi_read10_t);
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cbw.total_bytes = block_count*p_msc->capacity[lun].block_size;
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cbw.dir = TUSB_DIR_IN_MASK;
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cbw.cmd_len = sizeof(scsi_read10_t);
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scsi_read10_t cmd_read10 =
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scsi_read10_t const cmd_read10 =
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{
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.cmd_code = SCSI_CMD_READ_10,
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.lba = tu_htonl(lba),
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@ -225,11 +249,11 @@ bool tuh_msc_write10(uint8_t dev_addr, uint8_t lun, void const * buffer, uint32_
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msc_cbw_t cbw;
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cbw_init(&cbw, lun);
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cbw.total_bytes = 512*block_count; // Number of bytes TODO get block size from READ CAPACITY 10
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cbw.dir = TUSB_DIR_OUT;
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cbw.cmd_len = sizeof(scsi_write10_t);
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cbw.total_bytes = block_count*p_msc->capacity[lun].block_size;
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cbw.dir = TUSB_DIR_OUT;
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cbw.cmd_len = sizeof(scsi_write10_t);
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scsi_write10_t cmd_write10 =
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scsi_write10_t const cmd_write10 =
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{
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.cmd_code = SCSI_CMD_WRITE_10,
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.lba = tu_htonl(lba),
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@ -267,14 +291,14 @@ bool tuh_msc_reset(uint8_t dev_addr)
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//--------------------------------------------------------------------+
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void msch_init(void)
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{
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tu_memclr(msch_data, sizeof(msch_interface_t)*CFG_TUSB_HOST_DEVICE_MAX);
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tu_memclr(_msch_itf, sizeof(msch_interface_t)*CFG_TUSB_HOST_DEVICE_MAX);
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}
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void msch_close(uint8_t dev_addr)
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{
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msch_interface_t* p_msc = get_itf(dev_addr);
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tu_memclr(p_msc, sizeof(msch_interface_t));
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tuh_msc_unmounted_cb(dev_addr); // invoke Application Callback
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tuh_msc_unmount_cb(dev_addr); // invoke Application Callback
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}
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bool msch_xfer_cb(uint8_t dev_addr, uint8_t ep_addr, xfer_result_t event, uint32_t xferred_bytes)
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@ -331,6 +355,7 @@ bool msch_xfer_cb(uint8_t dev_addr, uint8_t ep_addr, xfer_result_t event, uint32
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static bool config_get_maxlun_complete (uint8_t dev_addr, tusb_control_request_t const * request, xfer_result_t result);
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static bool config_test_unit_ready_complete(uint8_t dev_addr, msc_cbw_t const* cbw, msc_csw_t const* csw);
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static bool config_request_sense_complete(uint8_t dev_addr, msc_cbw_t const* cbw, msc_csw_t const* csw);
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static bool config_read_capacity_complete(uint8_t dev_addr, msc_cbw_t const* cbw, msc_csw_t const* csw);
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bool msch_open(uint8_t rhport, uint8_t dev_addr, tusb_desc_interface_t const *itf_desc, uint16_t *p_length)
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{
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@ -369,6 +394,8 @@ bool msch_set_config(uint8_t dev_addr, uint8_t itf_num)
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msch_interface_t* p_msc = get_itf(dev_addr);
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TU_ASSERT(p_msc->itf_num == itf_num);
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p_msc->configured = true;
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//------------- Get Max Lun -------------//
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TU_LOG2("MSC Get Max Lun\r\n");
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tusb_control_request_t request =
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@ -396,12 +423,13 @@ static bool config_get_maxlun_complete (uint8_t dev_addr, tusb_control_request_t
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msch_interface_t* p_msc = get_itf(dev_addr);
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// STALL means zero
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p_msc->max_lun = (XFER_RESULT_SUCCESS == result) ? msch_buffer[0] : 0;
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p_msc->max_lun = (XFER_RESULT_SUCCESS == result) ? _msch_buffer[0] : 0;
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p_msc->max_lun++; // MAX LUN is minus 1 by specs
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// TODO multiple LUN support
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TU_LOG2("SCSI Test Unit Ready\r\n");
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tuh_msc_test_unit_ready(dev_addr, 0, config_test_unit_ready_complete);
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uint8_t const lun = 0;
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tuh_msc_test_unit_ready(dev_addr, lun, config_test_unit_ready_complete);
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return true;
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}
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@ -410,19 +438,16 @@ static bool config_test_unit_ready_complete(uint8_t dev_addr, msc_cbw_t const* c
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{
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if (csw->status == 0)
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{
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msch_interface_t* p_msc = get_itf(dev_addr);
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usbh_driver_set_config_complete(dev_addr, p_msc->itf_num);
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// Unit is ready, Enumeration is complete
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p_msc->mounted = true;
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tuh_msc_mounted_cb(dev_addr);
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// Unit is ready, read its capacity
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TU_LOG2("SCSI Read Capacity\r\n");
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tuh_msc_read_capacity(dev_addr, cbw->lun, (scsi_read_capacity10_resp_t*) _msch_buffer, config_read_capacity_complete);
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}else
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{
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// Note: During enumeration, some device fails Test Unit Ready and require a few retries
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// with Request Sense to start working !!
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// TODO limit number of retries
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TU_ASSERT(tuh_msc_request_sense(dev_addr, cbw->lun, msch_buffer, config_request_sense_complete));
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TU_LOG2("SCSI Request Sense\r\n");
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TU_ASSERT(tuh_msc_request_sense(dev_addr, cbw->lun, _msch_buffer, config_request_sense_complete));
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}
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return true;
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@ -435,4 +460,24 @@ static bool config_request_sense_complete(uint8_t dev_addr, msc_cbw_t const* cbw
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return true;
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}
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static bool config_read_capacity_complete(uint8_t dev_addr, msc_cbw_t const* cbw, msc_csw_t const* csw)
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{
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TU_ASSERT(csw->status == 0);
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msch_interface_t* p_msc = get_itf(dev_addr);
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// Capacity response field: Block size and Last LBA are both Big-Endian
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scsi_read_capacity10_resp_t* resp = (scsi_read_capacity10_resp_t*) _msch_buffer;
|
||||
p_msc->capacity[cbw->lun].block_count = tu_ntohl(resp->last_lba) + 1;
|
||||
p_msc->capacity[cbw->lun].block_size = tu_ntohl(resp->block_size);
|
||||
|
||||
// Mark enumeration is complete
|
||||
p_msc->mounted = true;
|
||||
tuh_msc_mount_cb(dev_addr);
|
||||
|
||||
usbh_driver_set_config_complete(dev_addr, p_msc->itf_num);
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
#endif
|
||||
|
||||
@ -35,6 +35,15 @@
|
||||
extern "C" {
|
||||
#endif
|
||||
|
||||
//--------------------------------------------------------------------+
|
||||
// Class Driver Configuration
|
||||
//--------------------------------------------------------------------+
|
||||
|
||||
#ifndef CFG_TUH_MSC_MAXLUN
|
||||
#define CFG_TUH_MSC_MAXLUN 4
|
||||
#endif
|
||||
|
||||
|
||||
/** \addtogroup ClassDriver_MSC
|
||||
* @{
|
||||
* \defgroup MSC_Host Host
|
||||
@ -51,12 +60,18 @@ typedef bool (*tuh_msc_complete_cb_t)(uint8_t dev_addr, msc_cbw_t const* cbw, ms
|
||||
// This function true after tuh_msc_mounted_cb() and false after tuh_msc_unmounted_cb()
|
||||
bool tuh_msc_mounted(uint8_t dev_addr);
|
||||
|
||||
// Check if the interface is currently busy transferring data
|
||||
bool tuh_msc_is_busy(uint8_t dev_addr);
|
||||
// Check if the interface is currently ready or busy transferring data
|
||||
bool tuh_msc_ready(uint8_t dev_addr);
|
||||
|
||||
// Get Max Lun
|
||||
uint8_t tuh_msc_get_maxlun(uint8_t dev_addr);
|
||||
|
||||
// Get number of block
|
||||
uint32_t tuh_msc_get_block_count(uint8_t dev_addr, uint8_t lun);
|
||||
|
||||
// Get block size in bytes
|
||||
uint32_t tuh_msc_get_block_size(uint8_t dev_addr, uint8_t lun);
|
||||
|
||||
// Perform a full SCSI command (cbw, data, csw) in non-blocking manner.
|
||||
// Complete callback is invoked when SCSI op is complete.
|
||||
// return true if success, false if there is already pending operation.
|
||||
@ -74,10 +89,6 @@ bool tuh_msc_test_unit_ready(uint8_t dev_addr, uint8_t lun, tuh_msc_complete_cb_
|
||||
// Complete callback is invoked when SCSI op is complete.
|
||||
bool tuh_msc_request_sense(uint8_t dev_addr, uint8_t lun, void *resposne, tuh_msc_complete_cb_t complete_cb);
|
||||
|
||||
// Perform SCSI Read Capacity 10 command
|
||||
// Complete callback is invoked when SCSI op is complete.
|
||||
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);
|
||||
|
||||
// Perform SCSI Read 10 command. Read n blocks starting from LBA to buffer
|
||||
// Complete callback is invoked when SCSI op is complete.
|
||||
bool tuh_msc_read10(uint8_t dev_addr, uint8_t lun, void * buffer, uint32_t lba, uint16_t block_count, tuh_msc_complete_cb_t complete_cb);
|
||||
@ -86,13 +97,19 @@ bool tuh_msc_read10(uint8_t dev_addr, uint8_t lun, void * buffer, uint32_t lba,
|
||||
// Complete callback is invoked when SCSI op is complete.
|
||||
bool tuh_msc_write10(uint8_t dev_addr, uint8_t lun, void const * buffer, uint32_t lba, uint16_t block_count, tuh_msc_complete_cb_t complete_cb);
|
||||
|
||||
// Perform SCSI Read Capacity 10 command
|
||||
// Complete callback is invoked when SCSI op is complete.
|
||||
// Note: during enumeration, host stack already carried out this request. Application can retrieve capacity by
|
||||
// simply call tuh_msc_get_block_count() and tuh_msc_get_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);
|
||||
|
||||
//------------- Application Callback -------------//
|
||||
|
||||
// Invoked when a device with MassStorage interface is mounted
|
||||
void tuh_msc_mounted_cb(uint8_t dev_addr);
|
||||
void tuh_msc_mount_cb(uint8_t dev_addr);
|
||||
|
||||
// Invoked when a device with MassStorage interface is unmounted
|
||||
void tuh_msc_unmounted_cb(uint8_t dev_addr);
|
||||
void tuh_msc_unmount_cb(uint8_t dev_addr);
|
||||
|
||||
//--------------------------------------------------------------------+
|
||||
// Internal Class Driver API
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user