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Diffstat (limited to 'examples/device/cdc_msc_hid/src/msc_disk.c')
-rw-r--r--examples/device/cdc_msc_hid/src/msc_disk.c79
1 files changed, 53 insertions, 26 deletions
diff --git a/examples/device/cdc_msc_hid/src/msc_disk.c b/examples/device/cdc_msc_hid/src/msc_disk.c
index 42e77ef76..ff7cb8d51 100644
--- a/examples/device/cdc_msc_hid/src/msc_disk.c
+++ b/examples/device/cdc_msc_hid/src/msc_disk.c
@@ -118,6 +118,59 @@ uint8_t msc_disk[DISK_BLOCK_NUM][DISK_BLOCK_SIZE] =
README_CONTENTS
};
+// Invoked when received SCSI_CMD_INQUIRY
+// Application fill vendor id, product id and revision with string up to 8, 16, 4 characters respectively
+void tud_msc_inquiry_cb(uint8_t lun, uint8_t vendor_id[8], uint8_t product_id[16], uint8_t product_rev[4])
+{
+ (void) lun;
+
+ const char vid[] = "TinyUSB";
+ const char pid[] = "Mass Storage";
+ const char rev[] = "1.0";
+
+ memcpy(vendor_id , vid, strlen(vid));
+ memcpy(product_id , pid, strlen(pid));
+ memcpy(product_rev, rev, strlen(rev));
+}
+
+// Invoked when received Test Unit Ready command.
+// return true allowing host to read/write this LUN e.g SD card inserted
+bool tud_msc_test_unit_ready_cb(uint8_t lun)
+{
+ (void) lun;
+
+ return true; // RAM disk is always ready
+}
+
+// Invoked when received SCSI_CMD_READ_CAPACITY_10 and SCSI_CMD_READ_FORMAT_CAPACITY to determine the disk size
+// Application update block count and block size
+void tud_msc_capacity_cb(uint8_t lun, uint32_t* block_count, uint16_t* block_size)
+{
+ (void) lun;
+
+ *block_count = DISK_BLOCK_NUM;
+ *block_size = DISK_BLOCK_SIZE;
+}
+
+// Invoked when received Start Stop Unit command
+// - Start = 0 : stopped power mode, if load_eject = 1 : unload disk storage
+// - Start = 1 : active mode, if load_eject = 1 : load disk storage
+void tud_msc_start_stop_cb(uint8_t lun, uint8_t power_condition, bool start, bool load_eject)
+{
+ (void) lun;
+ (void) power_condition;
+
+ if ( load_eject )
+ {
+ if (start)
+ {
+ // load disk storage
+ }else
+ {
+ // unload disk storage
+ }
+ }
+}
// Callback invoked when received READ10 command.
// Copy disk's data to buffer (up to bufsize) and return number of copied bytes.
@@ -147,15 +200,6 @@ int32_t tud_msc_write10_cb(uint8_t lun, uint32_t lba, uint32_t offset, uint8_t*
return bufsize;
}
-// Callback invoked to determine disk's size
-void tud_msc_capacity_cb(uint8_t lun, uint32_t* block_count, uint16_t* block_size)
-{
- (void) lun;
-
- *block_count = DISK_BLOCK_NUM;
- *block_size = DISK_BLOCK_SIZE;
-}
-
// Callback invoked when received an SCSI command not in built-in list below
// - READ_CAPACITY10, READ_FORMAT_CAPACITY, INQUIRY, MODE_SENSE6, REQUEST_SENSE
// - READ10 and WRITE10 has their own callbacks
@@ -171,28 +215,11 @@ int32_t tud_msc_scsi_cb (uint8_t lun, uint8_t const scsi_cmd[16], void* buffer,
switch (scsi_cmd[0])
{
- case SCSI_CMD_TEST_UNIT_READY:
- // Command that host uses to check our readiness before sending other commands
- resplen = 0;
- break;
-
case SCSI_CMD_PREVENT_ALLOW_MEDIUM_REMOVAL:
// Host is about to read/write etc ... better not to disconnect disk
resplen = 0;
break;
- case SCSI_CMD_START_STOP_UNIT:
- // Host try to eject/safe remove/poweroff us. We could safely disconnect with disk storage, or go into lower power
- /* scsi_start_stop_unit_t const * start_stop = (scsi_start_stop_unit_t const *) scsi_cmd;
- // Start bit = 0 : low power mode, if load_eject = 1 : unmount disk storage as well
- // Start bit = 1 : Ready mode, if load_eject = 1 : mount disk storage
- start_stop->start;
- start_stop->load_eject;
- */
- resplen = 0;
- break;
-
-
default:
// Set Sense = Invalid Command Operation
tud_msc_set_sense(lun, SCSI_SENSE_ILLEGAL_REQUEST, 0x20, 0x00);