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| author | Vasant Hegde <hegdevasant@linux.vnet.ibm.com> | 2015-04-06 14:03:31 +0530 |
|---|---|---|
| committer | Stewart Smith <stewart@linux.vnet.ibm.com> | 2015-05-07 17:42:34 +1000 |
| commit | 49a931a528acc3cd5d568c0fc296bb50ed32fb54 (patch) | |
| tree | fdec8c131a1c152aeaddea9fbc0f9ea9893beab2 /hw/fsp | |
| parent | 3288c187c2b3e82ff78f54cd6887dc2f95d7bbe9 (diff) | |
| download | blackbird-skiboot-49a931a528acc3cd5d568c0fc296bb50ed32fb54.tar.gz blackbird-skiboot-49a931a528acc3cd5d568c0fc296bb50ed32fb54.zip | |
FSP/LED: Handle SA indicator update notification
FSP sends SA indicator update notification via sys param update.
Use that info to update cached indicator state.
Signed-off-by: Vasant Hegde <hegdevasant@linux.vnet.ibm.com>
Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
Diffstat (limited to 'hw/fsp')
| -rw-r--r-- | hw/fsp/fsp-leds.c | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/hw/fsp/fsp-leds.c b/hw/fsp/fsp-leds.c index 83d4b382..d1381db3 100644 --- a/hw/fsp/fsp-leds.c +++ b/hw/fsp/fsp-leds.c @@ -27,6 +27,8 @@ #include <opal.h> #include <opal-msg.h> #include <fsp-leds.h> +#include <fsp-sysparam.h> + /* LED prefix */ #define PREFIX "FSPLED: " @@ -330,6 +332,31 @@ static void fsp_get_sai(void) } } +static bool sai_update_notification(struct fsp_msg *msg) +{ + uint32_t *state = &msg->data.words[2]; + uint32_t param_id = msg->data.words[0]; + int len = msg->data.words[1] & 0xffff; + + if (param_id != SYS_PARAM_REAL_SAI && param_id != SYS_PARAM_PLAT_SAI) + return false; + + if ( len != 4) + return false; + + if (*state != LED_STATE_ON && *state != LED_STATE_OFF) + return false; + + /* Update SAI state */ + lock(&sai_lock); + sai_data.state = *state; + unlock(&sai_lock); + + prlog(PR_TRACE, PREFIX + "SAI updated. New SAI state = 0x%x\n", *state); + return true; +} + /* * Update both the local LED lists to reflect upon led state changes @@ -1899,6 +1926,9 @@ void fsp_led_init(void) fsp_register_client(&fsp_indicator_client, FSP_MCLASS_INDICATOR); prlog(PR_TRACE, PREFIX "FSP async command client registered\n"); + /* Register for SAI update notification */ + sysparam_add_update_notifier(sai_update_notification); + opal_register(OPAL_LEDS_GET_INDICATOR, fsp_opal_leds_get_ind, 4); opal_register(OPAL_LEDS_SET_INDICATOR, fsp_opal_leds_set_ind, 5); prlog(PR_TRACE, PREFIX "LED OPAL interface registered\n"); |
