2021-06-15 23:55:09 +01:00
|
|
|
/*
|
|
|
|
* The MIT License (MIT)
|
|
|
|
*
|
|
|
|
* Copyright (c) 2020-2021 Damien P. George
|
|
|
|
*
|
|
|
|
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
|
|
* of this software and associated documentation files (the "Software"), to deal
|
|
|
|
* in the Software without restriction, including without limitation the rights
|
|
|
|
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
|
|
* copies of the Software, and to permit persons to whom the Software is
|
|
|
|
* furnished to do so, subject to the following conditions:
|
|
|
|
*
|
|
|
|
* The above copyright notice and this permission notice shall be included in
|
|
|
|
* all copies or substantial portions of the Software.
|
|
|
|
*
|
|
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
|
|
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
|
|
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
|
|
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
|
|
|
* THE SOFTWARE.
|
|
|
|
*
|
|
|
|
*/
|
|
|
|
#include "tusb.h"
|
|
|
|
#if CFG_TUD_MSC
|
|
|
|
#include "mpconfigboard.h"
|
|
|
|
#include "hardware/flash.h"
|
|
|
|
#include "hardware/sync.h"
|
|
|
|
#include "pico/stdlib.h"
|
|
|
|
|
|
|
|
// This implementation does Not support Flash sector caching.
|
|
|
|
#if MICROPY_FATFS_MAX_SS != FLASH_SECTOR_SIZE
|
|
|
|
#error MICROPY_FATFS_MAX_SS must be the same size as FLASH_SECTOR_SIZE
|
|
|
|
#endif
|
|
|
|
|
|
|
|
#define BLOCK_SIZE (FLASH_SECTOR_SIZE)
|
|
|
|
#define BLOCK_COUNT (MICROPY_HW_FLASH_STORAGE_BYTES / BLOCK_SIZE)
|
|
|
|
#define FLASH_BASE_ADDR (PICO_FLASH_SIZE_BYTES - MICROPY_HW_FLASH_STORAGE_BYTES)
|
|
|
|
#define FLASH_MMAP_ADDR (XIP_BASE + FLASH_BASE_ADDR)
|
|
|
|
|
|
|
|
static bool ejected = false;
|
|
|
|
|
|
|
|
// 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]) {
|
2023-09-01 07:03:27 +01:00
|
|
|
memcpy(vendor_id, MICROPY_HW_USB_MSC_INQUIRY_VENDOR_STRING, MIN(strlen(MICROPY_HW_USB_MSC_INQUIRY_VENDOR_STRING), 8));
|
|
|
|
memcpy(product_id, MICROPY_HW_USB_MSC_INQUIRY_PRODUCT_STRING, MIN(strlen(MICROPY_HW_USB_MSC_INQUIRY_PRODUCT_STRING), 16));
|
|
|
|
memcpy(product_rev, MICROPY_HW_USB_MSC_INQUIRY_REVISION_STRING, MIN(strlen(MICROPY_HW_USB_MSC_INQUIRY_REVISION_STRING), 4));
|
2021-06-15 23:55:09 +01:00
|
|
|
}
|
|
|
|
|
|
|
|
// 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) {
|
|
|
|
if (ejected) {
|
|
|
|
tud_msc_set_sense(lun, SCSI_SENSE_NOT_READY, 0x3a, 0x00);
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
return true;
|
|
|
|
}
|
|
|
|
|
|
|
|
// 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) {
|
|
|
|
*block_size = BLOCK_SIZE;
|
|
|
|
*block_count = BLOCK_COUNT;
|
|
|
|
}
|
|
|
|
|
|
|
|
// 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
|
|
|
|
bool tud_msc_start_stop_cb(uint8_t lun, uint8_t power_condition, bool start, bool load_eject) {
|
|
|
|
if (load_eject) {
|
|
|
|
if (start) {
|
|
|
|
// load disk storage
|
|
|
|
ejected = false;
|
|
|
|
} else {
|
|
|
|
// unload disk storage
|
|
|
|
ejected = true;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
return true;
|
|
|
|
}
|
|
|
|
|
|
|
|
// Callback invoked when received READ10 command.
|
|
|
|
// Copy disk's data to buffer (up to bufsize) and return number of copied bytes.
|
|
|
|
int32_t tud_msc_read10_cb(uint8_t lun, uint32_t lba, uint32_t offset, void *buffer, uint32_t bufsize) {
|
|
|
|
uint32_t count = bufsize / BLOCK_SIZE;
|
|
|
|
memcpy(buffer, (void *)(FLASH_MMAP_ADDR + lba * BLOCK_SIZE), count * BLOCK_SIZE);
|
|
|
|
return count * BLOCK_SIZE;
|
|
|
|
}
|
|
|
|
|
|
|
|
// Callback invoked when received WRITE10 command.
|
|
|
|
// Process data in buffer to disk's storage and return number of written bytes
|
|
|
|
int32_t tud_msc_write10_cb(uint8_t lun, uint32_t lba, uint32_t offset, uint8_t *buffer, uint32_t bufsize) {
|
|
|
|
uint32_t count = bufsize / BLOCK_SIZE;
|
|
|
|
uint32_t ints = save_and_disable_interrupts();
|
|
|
|
flash_range_erase(FLASH_BASE_ADDR + lba * BLOCK_SIZE, count * BLOCK_SIZE);
|
|
|
|
flash_range_program(FLASH_BASE_ADDR + lba * BLOCK_SIZE, buffer, count * BLOCK_SIZE);
|
|
|
|
restore_interrupts(ints);
|
|
|
|
return count * 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
|
|
|
|
int32_t tud_msc_scsi_cb(uint8_t lun, uint8_t const scsi_cmd[16], void *buffer, uint16_t bufsize) {
|
|
|
|
int32_t resplen = 0;
|
|
|
|
switch (scsi_cmd[0]) {
|
|
|
|
case SCSI_CMD_PREVENT_ALLOW_MEDIUM_REMOVAL:
|
|
|
|
// Sync the logical unit if needed.
|
|
|
|
break;
|
|
|
|
|
|
|
|
default:
|
|
|
|
// Set Sense = Invalid Command Operation
|
|
|
|
tud_msc_set_sense(lun, SCSI_SENSE_ILLEGAL_REQUEST, 0x20, 0x00);
|
|
|
|
// negative means error -> tinyusb could stall and/or response with failed status
|
|
|
|
resplen = -1;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
return resplen;
|
|
|
|
}
|
|
|
|
#endif
|