return write_size;
}
-static ssize_t dp_dpcd_address_write(struct file *f, const char __user *buf,
- size_t size, loff_t *pos)
-{
- int r;
- struct amdgpu_dm_connector *connector = file_inode(f)->i_private;
-
- if (size < sizeof(connector->debugfs_dpcd_address))
- return -EINVAL;
-
- r = copy_from_user(&connector->debugfs_dpcd_address,
- buf, sizeof(connector->debugfs_dpcd_address));
-
- return size - r;
-}
-
-static ssize_t dp_dpcd_size_write(struct file *f, const char __user *buf,
- size_t size, loff_t *pos)
-{
- int r;
- struct amdgpu_dm_connector *connector = file_inode(f)->i_private;
-
- if (size < sizeof(connector->debugfs_dpcd_size))
- return -EINVAL;
-
- r = copy_from_user(&connector->debugfs_dpcd_size,
- buf, sizeof(connector->debugfs_dpcd_size));
-
- if (connector->debugfs_dpcd_size > 256)
- connector->debugfs_dpcd_size = 0;
-
- return size - r;
-}
-
-static ssize_t dp_dpcd_data_write(struct file *f, const char __user *buf,
- size_t size, loff_t *pos)
-{
- int r;
- char *data;
- struct amdgpu_dm_connector *connector = file_inode(f)->i_private;
- struct dc_link *link = connector->dc_link;
- uint32_t write_size = connector->debugfs_dpcd_size;
-
- if (!write_size || size < write_size)
- return -EINVAL;
-
- data = kzalloc(write_size, GFP_KERNEL);
- if (!data)
- return 0;
-
- r = copy_from_user(data, buf, write_size);
-
- dm_helpers_dp_write_dpcd(link->ctx, link,
- connector->debugfs_dpcd_address, data, write_size - r);
- kfree(data);
- return write_size - r;
-}
-
-static ssize_t dp_dpcd_data_read(struct file *f, char __user *buf,
- size_t size, loff_t *pos)
-{
- int r;
- char *data;
- struct amdgpu_dm_connector *connector = file_inode(f)->i_private;
- struct dc_link *link = connector->dc_link;
- uint32_t read_size = connector->debugfs_dpcd_size;
-
- if (!read_size || size < read_size)
- return 0;
-
- data = kzalloc(read_size, GFP_KERNEL);
- if (!data)
- return 0;
-
- dm_helpers_dp_read_dpcd(link->ctx, link,
- connector->debugfs_dpcd_address, data, read_size);
-
- r = copy_to_user(buf, data, read_size);
-
- kfree(data);
- return read_size - r;
-}
-
/* function: Read link's DSC & FEC capabilities
*
*
.llseek = default_llseek
};
-static const struct file_operations dp_dpcd_address_debugfs_fops = {
- .owner = THIS_MODULE,
- .write = dp_dpcd_address_write,
- .llseek = default_llseek
-};
-
-static const struct file_operations dp_dpcd_size_debugfs_fops = {
- .owner = THIS_MODULE,
- .write = dp_dpcd_size_write,
- .llseek = default_llseek
-};
-
-static const struct file_operations dp_dpcd_data_debugfs_fops = {
- .owner = THIS_MODULE,
- .read = dp_dpcd_data_read,
- .write = dp_dpcd_data_write,
- .llseek = default_llseek
-};
-
static const struct file_operations dp_max_bpc_debugfs_fops = {
.owner = THIS_MODULE,
.read = dp_max_bpc_read,
{"test_pattern", &dp_phy_test_pattern_fops},
{"hdcp_sink_capability", &hdcp_sink_capability_fops},
{"sdp_message", &sdp_message_fops},
- {"aux_dpcd_address", &dp_dpcd_address_debugfs_fops},
- {"aux_dpcd_size", &dp_dpcd_size_debugfs_fops},
- {"aux_dpcd_data", &dp_dpcd_data_debugfs_fops},
{"dsc_clock_en", &dp_dsc_clock_en_debugfs_fops},
{"dsc_slice_width", &dp_dsc_slice_width_debugfs_fops},
{"dsc_slice_height", &dp_dsc_slice_height_debugfs_fops},
connector_debugfs_entries[i].fops);
}
- connector->debugfs_dpcd_address = 0;
- connector->debugfs_dpcd_size = 0;
-
if (connector->base.connector_type == DRM_MODE_CONNECTOR_HDMIA) {
for (i = 0; i < ARRAY_SIZE(hdmi_debugfs_entries); i++) {
debugfs_create_file(hdmi_debugfs_entries[i].name,