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| author | Raul E Rangel <rrangel@chromium.org> | 2019-11-25 20:45:39 +0300 |
|---|---|---|
| committer | Enric Balletbo i Serra <enric.balletbo@collabora.com> | 2019-12-10 12:14:02 +0300 |
| commit | 205c9326fd86659fadbfd4da66ab35eb2770a331 (patch) | |
| tree | 1818c86e445a884e4195a48433b9aa10acf40338 /drivers/platform/chrome/cros_ec_trace.c | |
| parent | 086338df1d6c3d717eb41f975a480571bb2d2973 (diff) | |
| download | linux-205c9326fd86659fadbfd4da66ab35eb2770a331.tar.xz | |
platform/chrome: cros_ec_proto: Add response tracing
Add the ability to view response codes as well.
I dropped the EVENT_CLASS since there is only one event per class.
cros_ec_cmd has now been renamed to cros_ec_request_start.
Example:
$ echo 1 > /sys/kernel/debug/tracing/events/cros_ec/enable
$ cat /sys/kernel/debug/tracing/trace
369.416372: cros_ec_request_start: version: 0, command: EC_CMD_USB_PD_POWER_INFO
369.420528: cros_ec_request_done: version: 0, command: EC_CMD_USB_PD_POWER_INFO, ec result: EC_RES_SUCCESS, retval: 16
369.420529: cros_ec_request_start: version: 0, command: EC_CMD_USB_PD_DISCOVERY
369.421383: cros_ec_request_done: version: 0, command: EC_CMD_USB_PD_DISCOVERY, ec result: EC_RES_SUCCESS, retval: 5
Signed-off-by: Raul E Rangel <rrangel@chromium.org>
Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Diffstat (limited to 'drivers/platform/chrome/cros_ec_trace.c')
| -rw-r--r-- | drivers/platform/chrome/cros_ec_trace.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/drivers/platform/chrome/cros_ec_trace.c b/drivers/platform/chrome/cros_ec_trace.c index e4f5d70f8809..523a39bd0ff6 100644 --- a/drivers/platform/chrome/cros_ec_trace.c +++ b/drivers/platform/chrome/cros_ec_trace.c @@ -182,5 +182,29 @@ TRACE_SYMBOL(EC_CMD_BOARD_SPECIFIC_BASE), \ TRACE_SYMBOL(EC_CMD_BOARD_SPECIFIC_LAST) +/* See the enum ec_status in include/linux/platform_data/cros_ec_commands.h */ +#define EC_RESULT \ + TRACE_SYMBOL(EC_RES_SUCCESS), \ + TRACE_SYMBOL(EC_RES_INVALID_COMMAND), \ + TRACE_SYMBOL(EC_RES_ERROR), \ + TRACE_SYMBOL(EC_RES_INVALID_PARAM), \ + TRACE_SYMBOL(EC_RES_ACCESS_DENIED), \ + TRACE_SYMBOL(EC_RES_INVALID_RESPONSE), \ + TRACE_SYMBOL(EC_RES_INVALID_VERSION), \ + TRACE_SYMBOL(EC_RES_INVALID_CHECKSUM), \ + TRACE_SYMBOL(EC_RES_IN_PROGRESS), \ + TRACE_SYMBOL(EC_RES_UNAVAILABLE), \ + TRACE_SYMBOL(EC_RES_TIMEOUT), \ + TRACE_SYMBOL(EC_RES_OVERFLOW), \ + TRACE_SYMBOL(EC_RES_INVALID_HEADER), \ + TRACE_SYMBOL(EC_RES_REQUEST_TRUNCATED), \ + TRACE_SYMBOL(EC_RES_RESPONSE_TOO_BIG), \ + TRACE_SYMBOL(EC_RES_BUS_ERROR), \ + TRACE_SYMBOL(EC_RES_BUSY), \ + TRACE_SYMBOL(EC_RES_INVALID_HEADER_VERSION), \ + TRACE_SYMBOL(EC_RES_INVALID_HEADER_CRC), \ + TRACE_SYMBOL(EC_RES_INVALID_DATA_CRC), \ + TRACE_SYMBOL(EC_RES_DUP_UNAVAILABLE) + #define CREATE_TRACE_POINTS #include "cros_ec_trace.h" |