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common: add host command to push AP SKU ID to ec

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add host command to set AP SKU ID to ec.

BUG=b:65359225
BRANCH=reef
TEST=make buildall -j

Change-Id: I76ffa4485be4de996b001097fa3f5a371f3a92ce
Signed-off-by: Devin Lu <Devin.Lu@quantatw.com>
Reviewed-on: https://chromium-review.googlesource.com/650277
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
This commit is contained in:
Devin Lu
2017-09-05 20:15:10 +08:00
committed by chrome-bot
parent 1f17e1cfc9
commit a52cfbc80c
3 changed files with 63 additions and 2 deletions
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57
common/system.c
View File

@@ -101,6 +101,47 @@ static enum ec_reboot_cmd reboot_at_shutdown;
/* On-going actions preventing going into deep-sleep mode */
uint32_t sleep_mask;
#ifdef CONFIG_HOSTCMD_AP_SET_SKUID
static uint32_t ap_sku_id;
uint32_t system_get_sku_id(void)
{
return ap_sku_id;
}
#define AP_SKUID_SYSJUMP_TAG 0x4153 /* AS */
#define AP_SKUID_HOOK_VERSION 1
/**
* Preserve AP SKUID across a sysjump.
*/
static void ap_sku_id_preserve_state(void)
{
system_add_jump_tag(AP_SKUID_SYSJUMP_TAG, AP_SKUID_HOOK_VERSION,
sizeof(ap_sku_id), &ap_sku_id);
}
DECLARE_HOOK(HOOK_SYSJUMP, ap_sku_id_preserve_state, HOOK_PRIO_DEFAULT);
/**
* Restore AP SKUID after a sysjump.
*/
static void ap_sku_id_restore_state(void)
{
const uint32_t *prev_ap_sku_id;
int size, version;
prev_ap_sku_id = (const uint32_t *)system_get_jump_tag(
AP_SKUID_SYSJUMP_TAG, &version, &size);
if (prev_ap_sku_id && version == AP_SKUID_HOOK_VERSION &&
size == sizeof(prev_ap_sku_id)) {
memcpy(&ap_sku_id, prev_ap_sku_id, sizeof(ap_sku_id));
}
}
DECLARE_HOOK(HOOK_INIT, ap_sku_id_restore_state, HOOK_PRIO_DEFAULT);
#endif
/**
* Return the program memory address where the image `copy` begins or should
* begin. In the case of external storage, the image may or may not currently
@@ -1186,7 +1227,7 @@ DECLARE_HOST_COMMAND(EC_CMD_GET_VERSION,
#ifdef CONFIG_HOSTCMD_SKUID
static int host_command_get_sku_id(struct host_cmd_handler_args *args)
{
struct ec_response_sku_id *r = args->response;
struct ec_sku_id_info *r = args->response;
r->sku_id = system_get_sku_id();
args->response_size = sizeof(*r);
@@ -1198,6 +1239,20 @@ DECLARE_HOST_COMMAND(EC_CMD_GET_SKU_ID,
EC_VER_MASK(0));
#endif
#ifdef CONFIG_HOSTCMD_AP_SET_SKUID
static int host_command_set_sku_id(struct host_cmd_handler_args *args)
{
const struct ec_sku_id_info *p = args->params;
ap_sku_id = p->sku_id;
return EC_RES_SUCCESS;
}
DECLARE_HOST_COMMAND(EC_CMD_SET_SKU_ID,
host_command_set_sku_id,
EC_VER_MASK(0));
#endif
static int host_command_build_info(struct host_cmd_handler_args *args)
{
strzcpy(args->response, system_get_build_info(), args->response_max);

3
include/config.h
View File

@@ -1500,6 +1500,9 @@
/* EC controls the board's SKU ID and can report that to the AP */
#undef CONFIG_HOSTCMD_SKUID
/* Set SKU ID from AP */
#undef CONFIG_HOSTCMD_AP_SET_SKUID
/*****************************************************************************/
/* Enable debugging and profiling statistics for hook functions */

5
include/ec_commands.h
View File

@@ -1122,7 +1122,10 @@ struct __ec_align4 ec_response_get_features {
/* Get the board's SKU ID from EC */
#define EC_CMD_GET_SKU_ID 0x000E
struct __ec_align4 ec_response_sku_id {
/* Set SKU ID from AP */
#define EC_CMD_SET_SKU_ID 0x000F
struct __ec_align4 ec_sku_id_info {
uint32_t sku_id;
};