1 // SPDX-License-Identifier: GPL-2.0+
2 // Copyright 2017-2020 NXP
6 #include "imx-pcm-rpmsg.h"
20 	struct imx_audio_rpmsg *rpmsg = dev_get_drvdata(&rpdev->dev);  in imx_audio_rpmsg_cb()
26 	if (!rpmsg->rpmsg_pdev)  in imx_audio_rpmsg_cb()
29 	info = platform_get_drvdata(rpmsg->rpmsg_pdev);  in imx_audio_rpmsg_cb()
31 	dev_dbg(&rpdev->dev, "get from%d: cmd:%d. %d\n",  in imx_audio_rpmsg_cb()
32 		src, r_msg->header.cmd, r_msg->param.resp);  in imx_audio_rpmsg_cb()
34 	switch (r_msg->header.type) {  in imx_audio_rpmsg_cb()
37 		switch (r_msg->header.cmd) {  in imx_audio_rpmsg_cb()
39 			spin_lock_irqsave(&info->lock[TX], flags);  in imx_audio_rpmsg_cb()
40 			msg = &info->msg[TX_PERIOD_DONE + MSG_TYPE_A_NUM];  in imx_audio_rpmsg_cb()
41 			msg->r_msg.param.buffer_tail =  in imx_audio_rpmsg_cb()
42 						r_msg->param.buffer_tail;  in imx_audio_rpmsg_cb()
43 			msg->r_msg.param.buffer_tail %= info->num_period[TX];  in imx_audio_rpmsg_cb()
44 			spin_unlock_irqrestore(&info->lock[TX], flags);  in imx_audio_rpmsg_cb()
45 			info->callback[TX](info->callback_param[TX]);  in imx_audio_rpmsg_cb()
48 			spin_lock_irqsave(&info->lock[RX], flags);  in imx_audio_rpmsg_cb()
49 			msg = &info->msg[RX_PERIOD_DONE + MSG_TYPE_A_NUM];  in imx_audio_rpmsg_cb()
50 			msg->r_msg.param.buffer_tail =  in imx_audio_rpmsg_cb()
51 						r_msg->param.buffer_tail;  in imx_audio_rpmsg_cb()
52 			msg->r_msg.param.buffer_tail %= info->num_period[1];  in imx_audio_rpmsg_cb()
53 			spin_unlock_irqrestore(&info->lock[RX], flags);  in imx_audio_rpmsg_cb()
54 			info->callback[RX](info->callback_param[RX]);  in imx_audio_rpmsg_cb()
57 			dev_warn(&rpdev->dev, "unknown msg command\n");  in imx_audio_rpmsg_cb()
63 		memcpy(&info->r_msg, r_msg, sizeof(struct rpmsg_r_msg));  in imx_audio_rpmsg_cb()
64 		complete(&info->cmd_complete);  in imx_audio_rpmsg_cb()
67 		dev_warn(&rpdev->dev, "unknown msg type\n");  in imx_audio_rpmsg_cb()
79 	dev_info(&rpdev->dev, "new channel: 0x%x -> 0x%x!\n",  in imx_audio_rpmsg_probe()
80 		 rpdev->src, rpdev->dst);  in imx_audio_rpmsg_probe()
82 	data = devm_kzalloc(&rpdev->dev, sizeof(*data), GFP_KERNEL);  in imx_audio_rpmsg_probe()
84 		return -ENOMEM;  in imx_audio_rpmsg_probe()
86 	dev_set_drvdata(&rpdev->dev, data);  in imx_audio_rpmsg_probe()
89 	data->rpmsg_pdev = platform_device_register_data(&rpdev->dev,  in imx_audio_rpmsg_probe()
93 	if (IS_ERR(data->rpmsg_pdev)) {  in imx_audio_rpmsg_probe()
94 		dev_err(&rpdev->dev, "failed to register rpmsg platform.\n");  in imx_audio_rpmsg_probe()
95 		ret = PTR_ERR(data->rpmsg_pdev);  in imx_audio_rpmsg_probe()
103 	struct imx_audio_rpmsg *data = dev_get_drvdata(&rpdev->dev);  in imx_audio_rpmsg_remove()
105 	if (data->rpmsg_pdev)  in imx_audio_rpmsg_remove()
106 		platform_device_unregister(data->rpmsg_pdev);  in imx_audio_rpmsg_remove()
108 	dev_info(&rpdev->dev, "audio rpmsg driver is removed\n");  in imx_audio_rpmsg_remove()
112 	{ .name	= "rpmsg-audio-channel" },
113 	{ .name = "rpmsg-micfil-channel" },
127 MODULE_DESCRIPTION("Freescale SoC Audio RPMSG interface");