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authorShawn Nematbakhsh <shawnn@chromium.org>2017-02-18 10:38:28 -0800
committerchrome-bot <chrome-bot@chromium.org>2017-03-02 11:29:07 -0800
commit899fba96494e022f8e083611c328e7b57cf18079 (patch)
tree12cb7e0a6ade6f96bb5c8cc9c82917eb4716bb81 /common/host_command.c
parenta990e4e832010c6967eb0243de8ba7ce9c3a7825 (diff)
downloadchrome-ec-899fba96494e022f8e083611c328e7b57cf18079.tar.gz
switch: Initialize switch state earlier during HOOK_INIT
The host may ask for our switch state at any time, so do initialization immediately after lid + power button are initialized. BUG=chrome-os-partner:63073 BRANCH=gru TEST=On kevin, verify system boots when EC reset is triggered with lid open. Verify lid close and power button press still succeed to power-down from dev screen. Change-Id: I8e37c02ef4f4d2d7c06beb383cdbda8eea67bc5c Signed-off-by: Shawn Nematbakhsh <shawnn@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/444322 Reviewed-by: Aseda Aboagye <aaboagye@chromium.org> (cherry picked from commit 106d33cd3a8e4f3356950a3b2b92ea587977b4e7) Reviewed-on: https://chromium-review.googlesource.com/445276 Commit-Ready: Shawn N <shawnn@chromium.org> Tested-by: Shawn N <shawnn@chromium.org>
Diffstat (limited to 'common/host_command.c')
-rw-r--r--common/host_command.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/common/host_command.c b/common/host_command.c
index 57cfe506c9..7ff327c726 100644
--- a/common/host_command.c
+++ b/common/host_command.c
@@ -518,6 +518,11 @@ static int host_command_read_memmap(struct host_cmd_handler_args *args)
offset + size > EC_MEMMAP_SIZE)
return EC_RES_INVALID_PARAM;
+ /* Make sure switch data is initialized */
+ if (offset == EC_MEMMAP_SWITCHES &&
+ *host_get_memmap(EC_MEMMAP_SWITCHES_VERSION) == 0)
+ return EC_RES_UNAVAILABLE;
+
memcpy(args->response, host_get_memmap(offset), size);
args->response_size = size;