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authorAnna, Suman <s-anna@ti.com>2016-08-12 18:42:28 -0500
committerBjorn Andersson <bjorn.andersson@linaro.org>2016-08-12 21:26:21 -0700
commita138c883193a66c3aaee554c8f976f62469c66a7 (patch)
tree916a21603c9647f0c4db35b0668b2cb6276b22ea /samples/rpmsg
parent211e3a93e5b5933e64ddfb299eee462ac7c7d500 (diff)
downloadlinux-stericsson-a138c883193a66c3aaee554c8f976f62469c66a7.tar.gz
samples/rpmsg: add support for multiple instances
The current rpmsg_client_sample is a very simple example and is not designed to handle multiple instances. Add support for multiple instances, so that the same number of pings are sent to each instance. The instances can be on one or multiple remote processors. Signed-off-by: Suman Anna <s-anna@ti.com> Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Diffstat (limited to 'samples/rpmsg')
-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) {