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-rw-r--r--samples/rpmsg/rpmsg_client_sample.c18
1 files changed, 15 insertions, 3 deletions
diff --git a/samples/rpmsg/rpmsg_client_sample.c b/samples/rpmsg/rpmsg_client_sample.c
index d0e249c90668..7e17d1c0aaf2 100644
--- a/samples/rpmsg/rpmsg_client_sample.c
+++ b/samples/rpmsg/rpmsg_client_sample.c
@@ -24,19 +24,24 @@
#define MSG "hello world!"
#define MSG_LIMIT 100
+struct instance_data {
+ int rx_count;
+};
+
static void rpmsg_sample_cb(struct rpmsg_channel *rpdev, void *data, int len,
void *priv, u32 src)
{
int ret;
- static int rx_count;
+ struct instance_data *idata = dev_get_drvdata(&rpdev->dev);
- dev_info(&rpdev->dev, "incoming msg %d (src: 0x%x)\n", ++rx_count, src);
+ dev_info(&rpdev->dev, "incoming msg %d (src: 0x%x)\n",
+ ++idata->rx_count, src);
print_hex_dump(KERN_DEBUG, __func__, DUMP_PREFIX_NONE, 16, 1,
data, len, true);
/* samples should not live forever */
- if (rx_count >= MSG_LIMIT) {
+ if (idata->rx_count >= MSG_LIMIT) {
dev_info(&rpdev->dev, "goodbye!\n");
return;
}
@@ -50,10 +55,17 @@ static void rpmsg_sample_cb(struct rpmsg_channel *rpdev, void *data, int len,
static int rpmsg_sample_probe(struct rpmsg_channel *rpdev)
{
int ret;
+ struct instance_data *idata;
dev_info(&rpdev->dev, "new channel: 0x%x -> 0x%x!\n",
rpdev->src, rpdev->dst);
+ idata = devm_kzalloc(&rpdev->dev, sizeof(*idata), GFP_KERNEL);
+ if (!idata)
+ return -ENOMEM;
+
+ dev_set_drvdata(&rpdev->dev, idata);
+
/* send a message to our remote processor */
ret = rpmsg_send(rpdev, MSG, strlen(MSG));
if (ret) {