From a5208f575fa98b8ebcd3e410cd367a682150a77d Mon Sep 17 00:00:00 2001 From: Sridhar Siricilla Date: Fri, 30 Aug 2019 17:10:24 +0530 Subject: 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 Signed-off-by: Sridhar Siricilla Reviewed-on: https://review.coreboot.org/c/coreboot/+/35224 Reviewed-by: Subrata Banik Tested-by: build bot (Jenkins) --- src/soc/intel/common/block/cse/cse.c | 16 ++++++++++++++++ src/soc/intel/common/block/include/intelblocks/cse.h | 8 ++++++++ 2 files changed, 24 insertions(+) (limited to 'src') diff --git a/src/soc/intel/common/block/cse/cse.c b/src/soc/intel/common/block/cse/cse.c index 446c5ac4ba..9520242d2e 100644 --- a/src/soc/intel/common/block/cse/cse.c +++ b/src/soc/intel/common/block/cse/cse.c @@ -458,6 +458,22 @@ int heci_receive(void *buff, size_t *maxlen) 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 d7c4d9f93e..424d483cfa 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_receive(void *buff, size_t *maxlen); */ 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. -- cgit v1.2.3