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| author | Tomasz Michalec <tm@semihalf.com> | 2022-03-10 13:29:27 +0100 |
|---|---|---|
| committer | Commit Bot <commit-bot@chromium.org> | 2022-03-18 14:20:56 +0000 |
| commit | 1c08eb4b2663d0e2ad0ca5bc98a8369b793b816b (patch) | |
| tree | 74c39a0c9bff4cc8f2695367cb8a3476dded4a97 /zephyr/emul/tcpc | |
| parent | b2bf76967bf2a96294aad933449bc0b3bfd12cce (diff) | |
| download | chrome-ec-1c08eb4b2663d0e2ad0ca5bc98a8369b793b816b.tar.gz | |
zephyr: emul: generate I2C error on too short TCPCI message
TCPCI should generate a FAULT_STATUS.I2CInterfaceError on transmitting
too short SOP* message.
BUG=b:223766685
BRANCH=none
TEST=zmake configure --test test-drivers
Signed-off-by: Tomasz Michalec <tm@semihalf.com>
Change-Id: Ife86d0581de01fb8980e58ecd675fcafa3e670ed
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/3515941
Tested-by: Tomasz Michalec <tmichalec@google.com>
Reviewed-by: Abe Levkoy <alevkoy@chromium.org>
Commit-Queue: Tomasz Michalec <tmichalec@google.com>
Diffstat (limited to 'zephyr/emul/tcpc')
| -rw-r--r-- | zephyr/emul/tcpc/emul_tcpci.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/zephyr/emul/tcpc/emul_tcpci.c b/zephyr/emul/tcpc/emul_tcpci.c index c16e99d4c4..c97d002edd 100644 --- a/zephyr/emul/tcpc/emul_tcpci.c +++ b/zephyr/emul/tcpc/emul_tcpci.c @@ -1171,6 +1171,7 @@ static void tcpci_emul_disable_pd_msg_delivery(const struct emul *emul) * @param emul Pointer to TCPCI emulator * * @return 0 on success + * @return -EIO when sending SOP message with less than 2 bytes in TX buffer */ static int tcpci_emul_handle_transmit(const struct emul *emul) { @@ -1183,6 +1184,13 @@ static int tcpci_emul_handle_transmit(const struct emul *emul) type = TCPC_REG_TRANSMIT_TYPE(data->write_data); + if (type < NUM_SOP_STAR_TYPES && data->tx_msg->cnt < 2) { + LOG_ERR("Transmitting too short message (%d)", + data->tx_msg->cnt); + tcpci_emul_set_i2c_interface_err(emul); + return -EIO; + } + if (data->partner && data->partner->transmit) { data->partner->transmit(emul, data->partner, data->tx_msg, type, TCPC_REG_TRANSMIT_RETRY(data->write_data)); |