[S] Change in em100[main]: Add send_cmd_raw()

[Stefan Reinauer (Code Review)]

Stefan Reinauer has uploaded this change for review. ( https://review.coreboot.org/c/em100/+/77195?usp=email )

Change subject: Add send_cmd_raw()
......................................................................

Add send_cmd_raw()

Future versions of EM100 will use different size commands for new features.
Add send_cmd_raw() to allow for this.

Change-Id: Ia33735a342fe43350d06ed6951a30fa8b2ef4a67
Signed-off-by: Stefan Reinauer 
---
M em100.h
M usb.c
2 files changed, 9 insertions(+), 2 deletions(-)

git pull ssh://review.coreboot.org:29418/em100 refs/changes/95/77195/1

diff --git a/em100.h b/em100.h
index 4ba78a9..5a762cc 100644
--- a/em100.h
+++ b/em100.h
@@ -47,6 +47,7 @@
 #define BULK_SEND_TIMEOUT	5000	/* sentinel value */

/* usb.c */
+int send_cmd_raw(libusb_device_handle *dev, void *data, int length);
 int send_cmd(libusb_device_handle *dev, void *data);
 int get_response(libusb_device_handle *dev, void *data, int length);

diff --git a/usb.c b/usb.c
index 4fd3df5..b6938ac 100644
--- a/usb.c
+++ b/usb.c
@@ -16,10 +16,10 @@

/* USB communication */

-int send_cmd(libusb_device_handle *dev, void *data)
+
+int send_cmd_raw(libusb_device_handle *dev, void *data, int length)
 {
    int actual;
-	int length = 16; /* haven't seen any other length yet */
    int ret = libusb_bulk_transfer(dev, 1 | LIBUSB_ENDPOINT_OUT,
    		data, length, &actual, BULK_SEND_TIMEOUT);
    if (LIBUSB_SUCCESS != ret)
@@ -27,6 +27,12 @@
    return (actual == length);
 }

+int send_cmd(libusb_device_handle *dev, void *data)
+{
+	int length = 16; /* most commands use the same length */
+	return send_cmd_raw(dev, data, length);
+}
+
 int get_response(libusb_device_handle *dev, void *data, int length)
 {
    int actual;