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-rw-r--r--watch-library/hardware/watch/tusb_config.h5
-rw-r--r--watch-library/hardware/watch/watch_private.c249
2 files changed, 252 insertions, 2 deletions
diff --git a/watch-library/hardware/watch/tusb_config.h b/watch-library/hardware/watch/tusb_config.h
index a22b2b99..0f6205e0 100644
--- a/watch-library/hardware/watch/tusb_config.h
+++ b/watch-library/hardware/watch/tusb_config.h
@@ -72,7 +72,7 @@
//------------- CLASS -------------//
#define CFG_TUD_CDC 1
-#define CFG_TUD_MSC 0
+#define CFG_TUD_MSC 1
#define CFG_TUD_HID 0
#define CFG_TUD_MIDI 0
#define CFG_TUD_VENDOR 0
@@ -84,6 +84,9 @@
// CDC Endpoint transfer buffer size, more is faster
#define CFG_TUD_CDC_EP_BUFSIZE (64)
+// MSC Buffer size of Device Mass storage
+#define CFG_TUD_MSC_EP_BUFSIZE 512
+
#ifdef __cplusplus
}
#endif
diff --git a/watch-library/hardware/watch/watch_private.c b/watch-library/hardware/watch/watch_private.c
index e4a03926..c5601166 100644
--- a/watch-library/hardware/watch/watch_private.c
+++ b/watch-library/hardware/watch/watch_private.c
@@ -338,15 +338,18 @@ uint8_t const * tud_descriptor_device_cb(void) {
enum {
ITF_NUM_CDC = 0,
ITF_NUM_CDC_DATA,
+ ITF_NUM_MSC,
ITF_NUM_TOTAL
};
-#define CONFIG_TOTAL_LEN (TUD_CONFIG_DESC_LEN + TUD_CDC_DESC_LEN)
+#define CONFIG_TOTAL_LEN (TUD_CONFIG_DESC_LEN + TUD_CDC_DESC_LEN + TUD_MSC_DESC_LEN)
#define EPNUM_CDC_NOTIF 0x81
#define EPNUM_CDC_OUT 0x02
#define EPNUM_CDC_IN 0x82
+#define EPNUM_MSC_OUT 0x03
+#define EPNUM_MSC_IN 0x83
uint8_t const desc_fs_configuration[] = {
// Config number, interface count, string index, total length, attribute, power in mA
@@ -354,6 +357,9 @@ uint8_t const desc_fs_configuration[] = {
// Interface number, string index, EP notification address and size, EP data address (out, in) and size.
TUD_CDC_DESCRIPTOR(ITF_NUM_CDC, 4, EPNUM_CDC_NOTIF, 8, EPNUM_CDC_OUT, EPNUM_CDC_IN, 64),
+
+ // Interface number, string index, EP Out & EP In address, EP size
+ TUD_MSC_DESCRIPTOR(ITF_NUM_MSC, 5, EPNUM_MSC_OUT, EPNUM_MSC_IN, 64),
};
// Invoked when received GET CONFIGURATION DESCRIPTOR
@@ -415,3 +421,244 @@ uint16_t const* tud_descriptor_string_cb(uint8_t index, uint16_t langid)
return _desc_str;
}
+
+// whether host does safe-eject
+static bool ejected = false;
+
+// Some MCU doesn't have enough 8KB SRAM to store the whole disk
+// We will use Flash as read-only disk with board that has
+// CFG_EXAMPLE_MSC_READONLY defined
+
+#define README_CONTENTS \
+"This is not the WATCHBOOT drive.\r\n\
+To drag new code onto the watch, double tap the RESET button.\r\n\r\n\
+Get firmware images here: https://joeycastillo.github.io/Sensor-Watch-Documentation/firmware/prebuilt.html"
+
+enum
+{
+ DISK_BLOCK_NUM = 16, // 8KB is the smallest size that windows allow to mount
+ DISK_BLOCK_SIZE = 512
+};
+
+#ifdef CFG_EXAMPLE_MSC_READONLY
+const
+#endif
+uint8_t msc_disk[DISK_BLOCK_NUM][DISK_BLOCK_SIZE] =
+{
+ //------------- Block0: Boot Sector -------------//
+ // byte_per_sector = DISK_BLOCK_SIZE; fat12_sector_num_16 = DISK_BLOCK_NUM;
+ // sector_per_cluster = 1; reserved_sectors = 1;
+ // fat_num = 1; fat12_root_entry_num = 16;
+ // sector_per_fat = 1; sector_per_track = 1; head_num = 1; hidden_sectors = 0;
+ // drive_number = 0x80; media_type = 0xf8; extended_boot_signature = 0x29;
+ // filesystem_type = "FAT12 "; volume_serial_number = 0x1234; volume_label = "TinyUSB MSC";
+ // FAT magic code at offset 510-511
+ {
+ 0xEB, 0x3C, 0x90, 0x4D, 0x53, 0x44, 0x4F, 0x53, 0x35, 0x2E, 0x30, 0x00, 0x02, 0x01, 0x01, 0x00,
+ 0x01, 0x10, 0x00, 0x10, 0x00, 0xF8, 0x01, 0x00, 0x01, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x80, 0x00, 0x29, 0x34, 0x12, 0x00, 0x00, 'T' , 'i' , 'n' , 'y' , 'U' ,
+ 'S' , 'B' , ' ' , 'M' , 'S' , 'C' , 0x46, 0x41, 0x54, 0x31, 0x32, 0x20, 0x20, 0x20, 0x00, 0x00,
+
+ // Zero up to 2 last bytes of FAT magic code
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x55, 0xAA
+ },
+
+ //------------- Block1: FAT12 Table -------------//
+ {
+ 0xF8, 0xFF, 0xFF, 0xFF, 0x0F // // first 2 entries must be F8FF, third entry is cluster end of readme file
+ },
+
+ //------------- Block2: Root Directory -------------//
+ {
+ // first entry is volume label
+ 'T' , 'i' , 'n' , 'y' , 'U' , 'S' , 'B' , ' ' , 'M' , 'S' , 'C' , 0x08, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x4F, 0x6D, 0x65, 0x43, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ // second entry is readme file
+ 'R' , 'E' , 'A' , 'D' , 'M' , 'E' , ' ' , ' ' , 'T' , 'X' , 'T' , 0x20, 0x00, 0xC6, 0x52, 0x6D,
+ 0x65, 0x43, 0x65, 0x43, 0x00, 0x00, 0x88, 0x6D, 0x65, 0x43, 0x02, 0x00,
+ sizeof(README_CONTENTS)-1, 0x00, 0x00, 0x00 // readme's files size (4 Bytes)
+ },
+
+ //------------- Block3: Readme Content -------------//
+ 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[] = "Sensor Watch";
+ const char pid[] = "Tiny 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;
+
+ // RAM disk is ready until ejected
+ if (ejected) {
+ // Additional Sense 3A-00 is NOT_FOUND
+ 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)
+{
+ (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
+bool 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
+ 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)
+{
+ (void) lun;
+
+ // out of ramdisk
+ if ( lba >= DISK_BLOCK_NUM ) return -1;
+
+ uint8_t const* addr = msc_disk[lba] + offset;
+ memcpy(buffer, addr, bufsize);
+
+ return (int32_t) bufsize;
+}
+
+bool tud_msc_is_writable_cb (uint8_t lun)
+{
+ (void) lun;
+
+#ifdef CFG_EXAMPLE_MSC_READONLY
+ return false;
+#else
+ return true;
+#endif
+}
+
+// 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)
+{
+ (void) lun;
+
+ // out of ramdisk
+ if ( lba >= DISK_BLOCK_NUM ) return -1;
+
+#ifndef CFG_EXAMPLE_MSC_READONLY
+ uint8_t* addr = msc_disk[lba] + offset;
+ memcpy(addr, buffer, bufsize);
+#else
+ (void) lba; (void) offset; (void) buffer;
+#endif
+
+ return (int32_t) bufsize;
+}
+
+// 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)
+{
+ // read10 & write10 has their own callback and MUST not be handled here
+
+ void const* response = NULL;
+ int32_t resplen = 0;
+
+ // most scsi handled is input
+ bool in_xfer = true;
+
+ switch (scsi_cmd[0])
+ {
+ 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 must not larger than bufsize
+ if ( resplen > bufsize ) resplen = bufsize;
+
+ if ( response && (resplen > 0) )
+ {
+ if(in_xfer)
+ {
+ memcpy(buffer, response, (size_t) resplen);
+ }else
+ {
+ // SCSI output
+ }
+ }
+
+ return (int32_t) resplen;
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-05 11:22:39 +0000