soc/sof/ipc.c

33  * Note: higher level sdev->ipc->tx_mutex must be held to make sure that
39 	struct snd_sof_ipc *ipc = sdev->ipc;
43 	if (ipc->disable_ipc_tx || sdev->fw_state != SOF_FW_BOOT_COMPLETE)
53 	msg = &ipc->msg;
75 int sof_ipc_tx_message(struct snd_sof_ipc *ipc, void *msg_data, size_t msg_bytes,
78 	if (msg_bytes > ipc->max_payload_size ||
79 	    reply_bytes > ipc->max_payload_size)
82 	return ipc->ops->tx_msg(ipc->sdev, msg_data, msg_bytes, reply_data,
88 int sof_ipc_set_get_data(struct snd_sof_ipc *ipc, void *msg_data,
91 	return ipc->ops->set_get_data(ipc->sdev, msg_data, msg_bytes, set);
100 int sof_ipc_tx_message_no_pm(struct snd_sof_ipc *ipc, void *msg_data, size_t msg_bytes,
103 	if (msg_bytes > ipc->max_payload_size ||
104 	    reply_bytes > ipc->max_payload_size)
107 	return ipc->ops->tx_msg(ipc->sdev, msg_data, msg_bytes, reply_data,
116 	 * Sometimes, there is unexpected reply ipc arriving. The reply
117 	 * ipc belongs to none of the ipcs sent from driver.
118 	 * In this case, the driver must ignore the ipc.
121 		dev_warn(sdev->dev, "unexpected ipc interrupt raised!\n");
125 	sdev->msg->reply_error = sdev->ipc->ops->get_reply(sdev);
132 	struct snd_sof_ipc_msg *msg = &sdev->ipc->msg;
149 	struct snd_sof_ipc *ipc;
153 	ipc = devm_kzalloc(sdev->dev, sizeof(*ipc), GFP_KERNEL);
154 	if (!ipc)
157 	mutex_init(&ipc->tx_mutex);
158 	ipc->sdev = sdev;
159 	msg = &ipc->msg;
214 	ipc->ops = ops;
216 	return ipc;
222 	struct snd_sof_ipc *ipc = sdev->ipc;
224 	if (!ipc)
227 	/* disable sending of ipc's */
228 	mutex_lock(&ipc->tx_mutex);
229 	ipc->disable_ipc_tx = true;
230 	mutex_unlock(&ipc->tx_mutex);
232 	if (ipc->ops->exit)
233 		ipc->ops->exit(sdev);