diff options
Diffstat (limited to 'examples/device/cdc_msc_hid/src/msc_disk.c')
| -rw-r--r-- | examples/device/cdc_msc_hid/src/msc_disk.c | 79 |
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); |
