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npcx: CEC: Notify AP of CEC send result

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Signed-off-by: Stefan Adolfsson <sadolfsson@chromium.org>

BUG=b:76467407
BRANCH=none
TEST=ectool cecwrite with and without sink. Reports
success if there is a sink, else it fails.
CQ-DEPEND=CL:1030222

Change-Id: I28f12fd8e226e1e261efaeeefe60f257c0afadf9
Reviewed-on: https://chromium-review.googlesource.com/1030223
Commit-Ready: Stefan Adolfsson <sadolfsson@chromium.org>
Tested-by: Stefan Adolfsson <sadolfsson@chromium.org>
Reviewed-by: Randall Spangler <rspangler@chromium.org>
This commit is contained in:
Stefan Adolfsson
2018-05-06 19:43:01 +02:00
committed by chrome-bot
parent 1ddb719bd0
commit 2d1d3d68b0
1 changed files with 22 additions and 0 deletions
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22
chip/npcx/cec.c
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@@ -3,6 +3,7 @@
* found in the LICENSE file.
*/
#include "atomic.h"
#include "clock_chip.h"
#include "console.h"
#include "ec_commands.h"
@@ -10,6 +11,7 @@
#include "gpio.h"
#include "hooks.h"
#include "host_command.h"
#include "mkbp_event.h"
#include "registers.h"
#include "task.h"
#include "timer.h"
@@ -126,9 +128,17 @@ static enum cec_state cec_state;
/* Parameters and buffer for initiator (sender) state */
static struct cec_tx cec_tx;
/* Events to send to AP */
static uint32_t cec_events;
/* APB1 frequency. Store divided by 10k to avoid some runtime divisions */
static uint32_t apb1_freq_div_10k;
static void send_mkbp_event(uint32_t event)
{
atomic_or(&cec_events, event);
mkbp_send_event(EC_MKBP_EVENT_CEC);
}
static void tmr_oneshot_start(int timeout)
{
@@ -315,6 +325,7 @@ static void cec_event_timeout(void)
cec_tx.len = 0;
cec_tx.resends = 0;
enter_state(CEC_STATE_IDLE);
send_mkbp_event(EC_MKBP_CEC_SEND_OK);
}
} else {
if (cec_tx.resends < CEC_MAX_RESENDS) {
@@ -326,6 +337,7 @@ static void cec_event_timeout(void)
cec_tx.len = 0;
cec_tx.resends = 0;
enter_state(CEC_STATE_IDLE);
send_mkbp_event(EC_MKBP_CEC_SEND_FAILED);
}
}
break;
@@ -405,6 +417,16 @@ static int hc_cec_write(struct host_cmd_handler_args *args)
}
DECLARE_HOST_COMMAND(EC_CMD_CEC_WRITE_MSG, hc_cec_write, EC_VER_MASK(0));
static int cec_get_next_event(uint8_t *out)
{
uint32_t event_out = atomic_read_clear(&cec_events);
memcpy(out, &event_out, sizeof(event_out));
return sizeof(event_out);
}
DECLARE_EVENT_SOURCE(EC_MKBP_EVENT_CEC, cec_get_next_event);
static void cec_init(void)
{
int mdl = NPCX_MFT_MODULE_1;