soc/intel/common/block/cse: Add helper function heci_send_receive
Aggregate sending and receiving HECI messages into a single function.
TEST=Verified sending and receiving reply HECI message on CML RVP & Hatch board
Change-Id: Ic95239eef8591d3aadf56a857c97f3f1e12b16ac
Signed-off-by: Rizwan Qureshi <rizwan.qureshi@intel.com>
Signed-off-by: Sridhar Siricilla <sridhar.siricilla@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/35224
Reviewed-by: Subrata Banik <subrata.banik@intel.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
diff --git a/src/soc/intel/common/block/cse/cse.c b/src/soc/intel/common/block/cse/cse.c
index 446c5ac..9520242 100644
--- a/src/soc/intel/common/block/cse/cse.c
+++ b/src/soc/intel/common/block/cse/cse.c
@@ -458,6 +458,22 @@
return 0;
}
+int heci_send_receive(const void *snd_msg, size_t snd_sz, void *rcv_msg, size_t *rcv_sz)
+{
+ if (!heci_send(snd_msg, snd_sz, BIOS_HOST_ADDR, HECI_MKHI_ADDR)) {
+ printk(BIOS_ERR, "HECI: send Failed\n");
+ return 0;
+ }
+
+ if (rcv_msg != NULL) {
+ if (!heci_receive(rcv_msg, rcv_sz)) {
+ printk(BIOS_ERR, "HECI: receive Failed\n");
+ return 0;
+ }
+ }
+ return 1;
+}
+
/*
* Attempt to reset the device. This is useful when host and ME are out
* of sync during transmission or ME didn't understand the message.
diff --git a/src/soc/intel/common/block/include/intelblocks/cse.h b/src/soc/intel/common/block/include/intelblocks/cse.h
index d7c4d9f..424d483 100644
--- a/src/soc/intel/common/block/include/intelblocks/cse.h
+++ b/src/soc/intel/common/block/include/intelblocks/cse.h
@@ -37,6 +37,14 @@
*/
int
heci_send(const void *msg, size_t len, uint8_t host_addr, uint8_t cse_addr);
+
+/*
+ * Sends snd_msg of size snd_sz, and reads message into buffer pointed by
+ * rcv_msg of size rcv_sz
+ * Returns 0 on failure a 1 on success.
+ */
+int heci_send_receive(const void *snd_msg, size_t snd_sz, void *rcv_msg, size_t *rcv_sz);
+
/*
* Attempt device reset. This is useful and perhaps only thing left to do when
* CPU and CSE are out of sync or CSE fails to respond.