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feat(legacy/bootloader): report installed firmware version

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This commit is contained in:
matejcik 2022-04-22 14:37:44 +02:00
parent 960527953a
commit ac8c642379
2 changed files with 58 additions and 23 deletions
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1
legacy/bootloader/.changelog.d/2231.added Normal file
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@ -0,0 +1 @@
Bootloader will report version of installed firmware.

80
legacy/bootloader/usb_send.h
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@ -37,7 +37,7 @@ static void send_msg_failure(usbd_device *dev, uint8_t code) {
static void send_msg_features(usbd_device *dev) {
uint8_t response[64];
memzero(response, sizeof(response));
// response: Features message (id 17), payload len 26
// response: Features message (id 17), payload len 26 / 41
// - vendor = "trezor.io"
// - major_version = VERSION_MAJOR
// - minor_version = VERSION_MINOR
@ -45,28 +45,62 @@ static void send_msg_features(usbd_device *dev) {
// - bootloader_mode = True
// - firmware_present = True/False
// - model = "1"
memcpy(response,
// header
"?##"
// msg_id
"\x00\x11"
// msg_size
"\x00\x00\x00\x1a"
// data
"\x0a"
"\x09"
"trezor.io"
"\x10" VERSION_MAJOR_CHAR "\x18" VERSION_MINOR_CHAR
"\x20" VERSION_PATCH_CHAR
"\x28"
"\x01"
"\x90\x01"
"\x00"
"\xaa"
"\x01\x01"
"1",
35);
response[30] = firmware_present_new() ? 0x01 : 0x00;
// ? fw_version_major = version_major
// ? fw_version_minor = version_minor
// ? fw_version_patch = version_patch
const bool firmware_present = firmware_present_new();
const image_header *current_hdr = (const image_header *)FLASH_FWHEADER_START;
uint32_t version = firmware_present ? current_hdr->version : 0;
// clang-format off
const uint8_t feature_bytes[] = {
0x0a, // vendor field
0x09, // vendor length
't', 'r', 'e', 'z', 'o', 'r', '.', 'i', 'o',
0x10, VERSION_MAJOR,
0x18, VERSION_MINOR,
0x20, VERSION_PATCH,
0x28, 0x01, // bootloader_mode
0x90, 0x01, // firmware_present field
firmware_present ? 0x01 : 0x00,
0xaa, 0x01, // model field
0x01, // model length
'1',
};
const uint8_t version_bytes[] = {
// fw_version_major
0xb0, 0x01, version & 0xff,
// fw_version_minor
0xb8, 0x01, (version >> 8) & 0xff,
// fw_version_patch
0xc0, 0x01, (version >> 16) & 0xff,
};
uint8_t header_bytes[] = {
// header
'?', '#', '#',
// msg_id
0x00, 0x11,
// msg_size
0x00, 0x00, 0x00, sizeof(feature_bytes) + (firmware_present ? sizeof(version_bytes) : 0),
};
// clang-format on
// Check that the response will fit into an USB packet, and also that the
// sizeof expression above fits into a single byte
_Static_assert(
sizeof(feature_bytes) + sizeof(version_bytes) + sizeof(header_bytes) <=
64,
"Features response too long");
memcpy(response, header_bytes, sizeof(header_bytes));
memcpy(response + sizeof(header_bytes), feature_bytes, sizeof(feature_bytes));
if (firmware_present) {
memcpy(response + sizeof(header_bytes) + sizeof(feature_bytes),
version_bytes, sizeof(version_bytes));
}
while (usbd_ep_write_packet(dev, ENDPOINT_ADDRESS_IN, response, 64) != 64) {
}
}