@@ -15,6 +15,7 @@
#include <linux/slab.h>
#include <linux/uaccess.h>
#include <sound/sof/header.h>
+#include <sound/sof/ipc4/header.h>
#include "sof-client.h"
@@ -23,6 +24,7 @@
struct sof_msg_inject_priv {
struct dentry *dfs_file;
size_t max_msg_size;
+ enum sof_ipc_type ipc_type;
void *tx_buffer;
void *rx_buffer;
@@ -67,6 +69,49 @@ static ssize_t sof_msg_inject_dfs_read(struct file *file, char __user *buffer,
return count;
}
+static ssize_t sof_msg_inject_ipc4_dfs_read(struct file *file,
+ char __user *buffer,
+ size_t count, loff_t *ppos)
+{
+ struct sof_client_dev *cdev = file->private_data;
+ struct sof_msg_inject_priv *priv = cdev->data;
+ struct sof_ipc4_msg *ipc4_msg = priv->rx_buffer;
+ size_t remaining;
+
+ if (!ipc4_msg->header_u64 || !count || *ppos)
+ return 0;
+
+ remaining = sizeof(ipc4_msg->header_u64);
+
+ /* Only get large config have payload */
+ if (SOF_IPC4_MSG_IS_MODULE_MSG(ipc4_msg->primary) &&
+ (SOF_IPC4_MSG_TYPE_GET(ipc4_msg->primary) == SOF_IPC4_MOD_LARGE_CONFIG_GET))
+ remaining += ipc4_msg->data_size;
+
+ if (count > remaining)
+ count = remaining;
+
+ /* copy the header first */
+ if (copy_to_user(buffer, &ipc4_msg->header_u64, sizeof(ipc4_msg->header_u64)))
+ return -EFAULT;
+
+ *ppos += sizeof(ipc4_msg->header_u64);
+ remaining -= sizeof(ipc4_msg->header_u64);
+
+ if (!remaining)
+ return count;
+
+ if (remaining > ipc4_msg->data_size)
+ remaining = ipc4_msg->data_size;
+
+ /* Copy the payload */
+ if (copy_to_user(buffer + *ppos, ipc4_msg->data_ptr, remaining))
+ return -EFAULT;
+
+ *ppos += remaining;
+ return count;
+}
+
static int sof_msg_inject_send_message(struct sof_client_dev *cdev)
{
struct sof_msg_inject_priv *priv = cdev->data;
@@ -120,6 +165,56 @@ static ssize_t sof_msg_inject_dfs_write(struct file *file, const char __user *bu
return size;
};
+static ssize_t sof_msg_inject_ipc4_dfs_write(struct file *file,
+ const char __user *buffer,
+ size_t count, loff_t *ppos)
+{
+ struct sof_client_dev *cdev = file->private_data;
+ struct sof_msg_inject_priv *priv = cdev->data;
+ struct sof_ipc4_msg *ipc4_msg = priv->tx_buffer;
+ size_t size;
+ int ret;
+
+ if (*ppos)
+ return 0;
+
+ if (count < sizeof(ipc4_msg->header_u64))
+ return -EINVAL;
+
+ /* copy the header first */
+ size = simple_write_to_buffer(&ipc4_msg->header_u64,
+ sizeof(ipc4_msg->header_u64),
+ ppos, buffer, count);
+ if (size != sizeof(ipc4_msg->header_u64))
+ return size > 0 ? -EFAULT : size;
+
+ count -= size;
+ if (!count) {
+ /* Copy the payload */
+ size = simple_write_to_buffer(ipc4_msg->data_ptr,
+ priv->max_msg_size, ppos, buffer,
+ count);
+ if (size != count)
+ return size > 0 ? -EFAULT : size;
+ }
+
+ ipc4_msg->data_size = count;
+
+ /* Initialize the reply storage */
+ ipc4_msg = priv->rx_buffer;
+ ipc4_msg->header_u64 = 0;
+ ipc4_msg->data_size = priv->max_msg_size;
+ memset(ipc4_msg->data_ptr, 0, priv->max_msg_size);
+
+ ret = sof_msg_inject_send_message(cdev);
+
+ /* return the error code if test failed */
+ if (ret < 0)
+ size = ret;
+
+ return size;
+};
+
static int sof_msg_inject_dfs_release(struct inode *inode, struct file *file)
{
debugfs_file_put(file->f_path.dentry);
@@ -137,29 +232,61 @@ static const struct file_operations sof_msg_inject_fops = {
.owner = THIS_MODULE,
};
+static const struct file_operations sof_msg_inject_ipc4_fops = {
+ .open = sof_msg_inject_dfs_open,
+ .read = sof_msg_inject_ipc4_dfs_read,
+ .write = sof_msg_inject_ipc4_dfs_write,
+ .llseek = default_llseek,
+ .release = sof_msg_inject_dfs_release,
+
+ .owner = THIS_MODULE,
+};
+
static int sof_msg_inject_probe(struct auxiliary_device *auxdev,
const struct auxiliary_device_id *id)
{
struct sof_client_dev *cdev = auxiliary_dev_to_sof_client_dev(auxdev);
struct dentry *debugfs_root = sof_client_get_debugfs_root(cdev);
+ static const struct file_operations *fops;
struct device *dev = &auxdev->dev;
struct sof_msg_inject_priv *priv;
+ size_t alloc_size;
/* allocate memory for client data */
priv = devm_kzalloc(&auxdev->dev, sizeof(*priv), GFP_KERNEL);
if (!priv)
return -ENOMEM;
+ priv->ipc_type = sof_client_get_ipc_type(cdev);
priv->max_msg_size = sof_client_get_ipc_max_payload_size(cdev);
- priv->tx_buffer = devm_kmalloc(dev, priv->max_msg_size, GFP_KERNEL);
- priv->rx_buffer = devm_kzalloc(dev, priv->max_msg_size, GFP_KERNEL);
+ alloc_size = priv->max_msg_size;
+
+ if (priv->ipc_type == SOF_INTEL_IPC4)
+ alloc_size += sizeof(struct sof_ipc4_msg);
+
+ priv->tx_buffer = devm_kmalloc(dev, alloc_size, GFP_KERNEL);
+ priv->rx_buffer = devm_kzalloc(dev, alloc_size, GFP_KERNEL);
if (!priv->tx_buffer || !priv->rx_buffer)
return -ENOMEM;
+ if (priv->ipc_type == SOF_INTEL_IPC4) {
+ struct sof_ipc4_msg *ipc4_msg;
+
+ ipc4_msg = priv->tx_buffer;
+ ipc4_msg->data_ptr = priv->tx_buffer + sizeof(struct sof_ipc4_msg);
+
+ ipc4_msg = priv->rx_buffer;
+ ipc4_msg->data_ptr = priv->rx_buffer + sizeof(struct sof_ipc4_msg);
+
+ fops = &sof_msg_inject_ipc4_fops;
+ } else {
+ fops = &sof_msg_inject_fops;
+ }
+
cdev->data = priv;
priv->dfs_file = debugfs_create_file("ipc_msg_inject", 0644, debugfs_root,
- cdev, &sof_msg_inject_fops);
+ cdev, fops);
/* enable runtime PM */
pm_runtime_set_autosuspend_delay(dev, SOF_IPC_CLIENT_SUSPEND_DELAY_MS);