Fastboot: Add new TEXT message to protocol to handle long lines.
Trusty Benchmarks need to be evaluated in ABL which is much more
controlled than linux. However fastboot prints evry atomic message from
trusty/abl on its own line starting with "(bootloader)"
Bug: 263454481
Test: - "fastboot oem trusty runtest trusty.hwrng.bench"
Change-Id: I99847a8cc54457c8ec809e219736325dce0ac891
diff --git a/fastboot/README.md b/fastboot/README.md
index d3b6c1a..63db5c3 100644
--- a/fastboot/README.md
+++ b/fastboot/README.md
@@ -29,20 +29,27 @@
2. Client response with a single packet no greater than 256 bytes.
The first four bytes of the response are "OKAY", "FAIL", "DATA",
- or "INFO". Additional bytes may contain an (ascii) informative
+ "INFO" or "TEXT". Additional bytes may contain an (ascii) informative
message.
a. INFO -> the remaining 252 bytes are an informative message
(providing progress or diagnostic messages). They should
- be displayed and then step #2 repeats
+ be displayed and then step #2 repeats. The print format is:
+ "(bootloader) " + InfoMessagePayload + '\n'
- b. FAIL -> the requested command failed. The remaining 252 bytes
+ b. TEXT -> the remaining 252 bytes are arbitrary. They should
+ be displayed and then step #2 repeats.
+ It differs from info in that no formatting is applied.
+ The payload is printed as-is with no newline at the end.
+ Payload is expected to be NULL terminated.
+
+ c. FAIL -> the requested command failed. The remaining 252 bytes
of the response (if present) provide a textual failure message
to present to the user. Stop.
- c. OKAY -> the requested command completed successfully. Go to #5
+ d. OKAY -> the requested command completed successfully. Go to #5
- d. DATA -> the requested command is ready for the data phase.
+ e. DATA -> the requested command is ready for the data phase.
A DATA response packet will be 12 bytes long, in the form of
DATA00000000 where the 8 digit hexadecimal number represents
the total data size to transfer.
@@ -54,15 +61,17 @@
in the "DATA" response above.
4. Client responds with a single packet no greater than 256 bytes.
- The first four bytes of the response are "OKAY", "FAIL", or "INFO".
- Similar to #2:
+ The first four bytes of the response are "OKAY", "FAIL",
+ "INFO" or "TEXT". Similar to #2:
- a. INFO -> display the remaining 252 bytes and return to #4
+ a. INFO -> display the formatted remaining 252 bytes and return to #4
- b. FAIL -> display the remaining 252 bytes (if present) as a failure
+ b. TEXT -> display the unformatted remaining 252 bytes and return to #4
+
+ c. FAIL -> display the remaining 252 bytes (if present) as a failure
reason and consider the command failed. Stop.
- c. OKAY -> success. Go to #5
+ d. OKAY -> success. Go to #5
5. Success. Stop.