[coreboot-gerrit] Change in coreboot[master]: ec/google/wilco: Add mailbox helper functions
Duncan Laurie (Code Review)
gerrit at coreboot.org
Tue Oct 16 00:54:32 CEST 2018
Duncan Laurie has uploaded this change for review. ( https://review.coreboot.org/29114
Change subject: ec/google/wilco: Add mailbox helper functions
......................................................................
ec/google/wilco: Add mailbox helper functions
Add helper functions that make it more convenient to send and receive
the most common types of commands to the Wilco embedded controller.
Change-Id: I9cee1a3b2f9d507f6ecdfae9f4a34ba59056cb91
Signed-off-by: Duncan Laurie <dlaurie at google.com>
---
M src/ec/google/wilco/ec.h
1 file changed, 71 insertions(+), 0 deletions(-)
git pull ssh://review.coreboot.org:29418/coreboot refs/changes/14/29114/1
diff --git a/src/ec/google/wilco/ec.h b/src/ec/google/wilco/ec.h
index 7b58473..fad7370 100644
--- a/src/ec/google/wilco/ec.h
+++ b/src/ec/google/wilco/ec.h
@@ -47,4 +47,75 @@
const void *request_data, size_t request_size,
void *response_data, size_t response_size);
+/**
+ * wilco_ec_send
+ *
+ * Send a basic EC command with a one byte parameter with no
+ * returned data;
+ *
+ * @command: Command to execute
+ * @param: Command parameter to send
+ *
+ * @return negative error code on failure
+ */
+static inline int wilco_ec_send(uint8_t command, uint8_t param)
+{
+ return wilco_ec_mailbox(WILCO_EC_MSG_DEFAULT, command,
+ ¶m, sizeof(param), NULL, 0);
+}
+
+/**
+ * wilco_ec_send_noargs
+ *
+ * Send a basic EC command with no parameters and no returned data.
+ *
+ * @command: Command to execute
+ *
+ * @return negative error code on failure
+ */
+static inline int wilco_ec_send_noargs(uint8_t command)
+{
+ return wilco_ec_mailbox(WILCO_EC_MSG_DEFAULT, command,
+ NULL, 0, NULL, 0);
+}
+
+/**
+ * wilco_ec_sendrecv
+ *
+ * Send a basic EC command with a one byte parameter, ignoring the
+ * first byte of returned data to match the common behavior.
+ *
+ * @command: Command to execute
+ * @param: Command parameter to send
+ * @data: Response data buffer
+ * @size: Number of bytes in response data buffer
+ *
+ * @return number of bytes received, negative error code on failure
+ */
+static inline int wilco_ec_sendrecv(uint8_t command, uint8_t param,
+ void *data, size_t size)
+{
+ return wilco_ec_mailbox(WILCO_EC_MSG_DEFAULT, command,
+ ¶m, sizeof(param), data, size);
+}
+
+/**
+ * wilco_ec_sendrecv_noargs
+ *
+ * Send a basic EC command with no parameters, ignoring the
+ * first byte of returned data to match the common behavior.
+ *
+ * @command: Command to execute
+ * @data: Response data buffer
+ * @size: Number of bytes in response data buffer
+ *
+ * @return number of bytes received, negative error code on failure
+ */
+static inline int wilco_ec_sendrecv_noargs(uint8_t command,
+ void *data, size_t size)
+{
+ return wilco_ec_mailbox(WILCO_EC_MSG_DEFAULT, command,
+ NULL, 0, data, size);
+}
+
#endif /* EC_GOOGLE_WILCO_EC_H */
--
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Gerrit-Project: coreboot
Gerrit-Branch: master
Gerrit-MessageType: newchange
Gerrit-Change-Id: I9cee1a3b2f9d507f6ecdfae9f4a34ba59056cb91
Gerrit-Change-Number: 29114
Gerrit-PatchSet: 1
Gerrit-Owner: Duncan Laurie <dlaurie at chromium.org>
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