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bootloader: make code smaller by changing the send_msg logic

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This commit is contained in:
Pavol Rusnak 2019-01-31 22:18:08 +01:00
parent 11311da48a
commit 0ab3eee37d
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GPG Key ID: 91F3B339B9A02A3D
1 changed files with 41 additions and 57 deletions
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98
bootloader/usb.c
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@ -139,24 +139,27 @@ static uint8_t meta_backup[FLASH_META_LEN];
static void send_msg_success(usbd_device *dev)
{
uint8_t response[64];
memzero(response, sizeof(response));
// response: Success message (id 2), payload len 0
while ( usbd_ep_write_packet(dev, ENDPOINT_ADDRESS_IN,
memcpy(response,
// header
"?##"
// msg_id
"\x00\x02"
// msg_size
"\x00\x00\x00\x00"
// padding
"\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
, 64) != 64) {}
"\x00\x00\x00\x00",
9);
while (usbd_ep_write_packet(dev, ENDPOINT_ADDRESS_IN, response, 64) != 64) {}
}
static void send_msg_failure(usbd_device *dev)
{
uint8_t response[64];
memzero(response, sizeof(response));
// response: Failure message (id 3), payload len 2
// - code = 99 (Failure_FirmwareError)
while ( usbd_ep_write_packet(dev, ENDPOINT_ADDRESS_IN,
memcpy(response,
// header
"?##"
// msg_id
@ -164,15 +167,16 @@ static void send_msg_failure(usbd_device *dev)
// msg_size
"\x00\x00\x00\x02"
// data
"\x08" "\x63"
// padding
"\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
, 64) != 64) {}
"\x08" "\x63",
11);
while (usbd_ep_write_packet(dev, ENDPOINT_ADDRESS_IN, response, 64) != 64) {}
}
static void send_msg_features(usbd_device *dev)
{
// response: Features message (id 17), payload len 30
uint8_t response[64];
memzero(response, sizeof(response));
// response: Features message (id 17), payload len 25
// - vendor = "trezor.io"
// - major_version = VERSION_MAJOR
// - minor_version = VERSION_MINOR
@ -180,52 +184,33 @@ static void send_msg_features(usbd_device *dev)
// - bootloader_mode = True
// - firmware_present = True/False
// - model = "1"
if (brand_new_firmware) {
while ( usbd_ep_write_packet(dev, ENDPOINT_ADDRESS_IN,
// header
"?##"
// msg_id
"\x00\x11"
// msg_size
"\x00\x00\x00\x16"
// data
"\x0a" "\x09" "trezor.io"
"\x10" VERSION_MAJOR_CHAR
"\x18" VERSION_MINOR_CHAR
"\x20" VERSION_PATCH_CHAR
"\x28" "\x01"
"\x90\x01" "\x00"
"\xaa" "\x01" "1"
// padding
"\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
, 64) != 64) {}
} else {
while ( usbd_ep_write_packet(dev, ENDPOINT_ADDRESS_IN,
// header
"?##"
// msg_id
"\x00\x11"
// msg_size
"\x00\x00\x00\x16"
// data
"\x0a" "\x09" "trezor.io"
"\x10" VERSION_MAJOR_CHAR
"\x18" VERSION_MINOR_CHAR
"\x20" VERSION_PATCH_CHAR
"\x28" "\x01"
"\x90\x01" "\x01"
"\xaa" "\x01" "1"
// padding
"\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
, 64) != 64) {}
}
memcpy(response,
// header
"?##"
// msg_id
"\x00\x11"
// msg_size
"\x00\x00\x00\x16"
// data
"\x0a" "\x09" "trezor.io"
"\x10" VERSION_MAJOR_CHAR
"\x18" VERSION_MINOR_CHAR
"\x20" VERSION_PATCH_CHAR
"\x28" "\x01"
"\x90\x01" "\x00"
"\xaa" "\x01" "1",
34);
response[30] = brand_new_firmware ? 0x01 : 0x00;
while (usbd_ep_write_packet(dev, ENDPOINT_ADDRESS_IN, response, 64) != 64) {}
}
static void send_msg_buttonrequest_firmwarecheck(usbd_device *dev)
{
uint8_t response[64];
memzero(response, sizeof(response));
// response: ButtonRequest message (id 26), payload len 2
// - code = ButtonRequest_FirmwareCheck (9)
while ( usbd_ep_write_packet(dev, ENDPOINT_ADDRESS_IN,
memcpy(response,
// header
"?##"
// msg_id
@ -233,10 +218,10 @@ static void send_msg_buttonrequest_firmwarecheck(usbd_device *dev)
// msg_size
"\x00\x00\x00\x02"
// data
"\x08" "\x09"
// padding
"\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
, 64) != 64) {}
"\x08" "\x09",
11
);
while (usbd_ep_write_packet(dev, ENDPOINT_ADDRESS_IN, response, 64) != 64) {}
}
static void backup_metadata(uint8_t *backup)
@ -551,8 +536,7 @@ void usbInit(void)
usbd_dev = usbd_init(&otgfs_usb_driver, &dev_descr, &config, usb_strings, sizeof(usb_strings)/sizeof(const char *), usbd_control_buffer, sizeof(usbd_control_buffer));
usbd_register_set_config_callback(usbd_dev, set_config);
usb21_setup(usbd_dev, &bos_descriptor);
static const char* origin_url = "trezor.io/start";
webusb_setup(usbd_dev, origin_url);
webusb_setup(usbd_dev, "trezor.io/start");
winusb_setup(usbd_dev, USB_INTERFACE_INDEX_MAIN);
}