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authorRandall Spangler <rspangler@chromium.org>2014-02-27 13:26:10 -0700
committerSimon Glass <sjg@chromium.org>2014-03-17 20:05:47 -0600
commita60702833150b8f9263a5f1fb9a6b64774cd44f3 (patch)
tree32581d04ab69321f2044c3cefc0f7560b384a65e /include/cros_ec.h
parent2d8ede58ca5873f485c7691b1ca1c1bc6aae7212 (diff)
cros_ec: spi: Add support for EC protocol version 3
Protocol version 3 will be attempted first; if the EC doesn't support it, u-boot will fall back to the old protocol version (2). Reviewed-by: Simon Glass <sjg@chromium.org> Signed-off-by: Randall Spangler <rspangler@chromium.org> Signed-off-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'include/cros_ec.h')
-rw-r--r--include/cros_ec.h13
1 files changed, 13 insertions, 0 deletions
diff --git a/include/cros_ec.h b/include/cros_ec.h
index 1199d923354..84f9104d36d 100644
--- a/include/cros_ec.h
+++ b/include/cros_ec.h
@@ -312,6 +312,19 @@ int cros_ec_spi_command(struct cros_ec_dev *dev, uint8_t cmd, int cmd_version,
uint8_t **dinp, int din_len);
/**
+ * Send a packet to a CROS-EC device and return the response packet.
+ *
+ * Expects the request packet to be stored in dev->dout. Stores the response
+ * packet in dev->din.
+ *
+ * @param dev CROS-EC device
+ * @param out_bytes Size of request packet to output
+ * @param in_bytes Maximum size of response packet to receive
+ * @return number of bytes in response packet, or <0 on error
+ */
+int cros_ec_spi_packet(struct cros_ec_dev *dev, int out_bytes, int in_bytes);
+
+/**
* Dump a block of data for a command.
*
* @param name Name for data (e.g. 'in', 'out')