drivers/rpmsg/rockchip_rpmsg_test.c

1 // SPDX-License-Identifier: GPL-2.0
6  * Author: Hongming Zou <hongming.zou@rock-chips.com>
11 #include <linux/rpmsg.h>
12 #include <linux/rpmsg/rockchip_rpmsg.h>
16 #define LINUX_TEST_MSG_2 "Rockchip rpmsg linux test pingpong!"
28 	struct instance_data *idata = dev_get_drvdata(&rp->dev);  in rockchip_rpmsg_test_cb()
31 	dev_info(&rp->dev, "rx msg %s rx_count %d(remote_ept_id: 0x%x)\n",  in rockchip_rpmsg_test_cb()
32 			(char *)payload, ++idata->rx_count, remote_ept_id);  in rockchip_rpmsg_test_cb()
35 	if (idata->rx_count >= MSG_LIMIT) {  in rockchip_rpmsg_test_cb()
36 		dev_info(&rp->dev, "Rockchip rpmsg test exit!\n");  in rockchip_rpmsg_test_cb()
41 	ret = rpmsg_sendto(rp->ept, LINUX_TEST_MSG_2, strlen(LINUX_TEST_MSG_2), remote_ept_id);  in rockchip_rpmsg_test_cb()
43 		dev_err(&rp->dev, "rpmsg_send failed: %d\n", ret);  in rockchip_rpmsg_test_cb()
53 	master_ept_id = rp->src;  in rockchip_rpmsg_test_probe()
54 	remote_ept_id = rp->dst;  in rockchip_rpmsg_test_probe()
55 	dev_info(&rp->dev, "new channel: 0x%x -> 0x%x!\n", master_ept_id, remote_ept_id);  in rockchip_rpmsg_test_probe()
57 	idata = devm_kzalloc(&rp->dev, sizeof(*idata), GFP_KERNEL);  in rockchip_rpmsg_test_probe()
59 		return -ENOMEM;  in rockchip_rpmsg_test_probe()
61 	dev_set_drvdata(&rp->dev, idata);  in rockchip_rpmsg_test_probe()
67 	ret = rpmsg_send(rp->ept, LINUX_TEST_MSG_1, strlen(LINUX_TEST_MSG_1));  in rockchip_rpmsg_test_probe()
69 		dev_err(&rp->dev, "rpmsg_send failed: %d\n", ret);  in rockchip_rpmsg_test_probe()
73 	ret = rpmsg_sendto(rp->ept, LINUX_TEST_MSG_2, strlen(LINUX_TEST_MSG_2), remote_ept_id);  in rockchip_rpmsg_test_probe()
75 		dev_err(&rp->dev, "rpmsg_send failed: %d\n", ret);  in rockchip_rpmsg_test_probe()
84 	dev_info(&rp->dev, "rockchip rpmsg test is removed\n");  in rockchip_rpmsg_test_remove()
88 	{ .name = "rpmsg-ap3-ch0" },
93 	.drv.name	= KBUILD_MODNAME,
115 MODULE_AUTHOR("Hongming Zou <hongming.zou@rock-chips.com>");