1 // SPDX-License-Identifier: GPL-2.0-only
2 // Copyright(c) 2015-2020 Intel Corporation.
21  * Since we can't use ARRAY_SIZE, hard-code number of dpN attributes.
22  * This needs to be updated when adding new attributes - an error will be
28 static int field##_attribute_alloc(struct device *dev,			\
35 	dpn_attr = devm_kzalloc(dev, sizeof(*dpn_attr), GFP_KERNEL);	\
37 		return -ENOMEM;						\
38 	dpn_attr->N = N;						\
39 	dpn_attr->dir = dir;						\
40 	sysfs_attr_init(&dpn_attr->dev_attr.attr);			\
41 	dpn_attr->format_string = format_string;			\
42 	dpn_attr->dev_attr.attr.name = __stringify(field);		\
43 	dpn_attr->dev_attr.attr.mode = 0444;				\
44 	dpn_attr->dev_attr.show = field##_show;				\
46 	*res = &dpn_attr->dev_attr.attr;				\
53 static ssize_t field##_dpn_show(struct sdw_slave *slave,		\
65 		dpn = slave->prop.src_dpn_prop;				\
66 		mask = slave->prop.source_ports;			\
68 		dpn = slave->prop.sink_dpn_prop;			\
69 		mask = slave->prop.sink_ports;				\
80 	return -EINVAL;							\
83 static ssize_t field##_show(struct device *dev,				\
87 	struct sdw_slave *slave = dev_to_sdw_dev(dev);			\
91 	return field##_dpn_show(slave,					\
92 				dpn_attr->N, dpn_attr->dir,		\
93 				dpn_attr->format_string,		\
113 static ssize_t field##_dpn_show(struct sdw_slave *slave,		\
127 		dpn = slave->prop.src_dpn_prop;				\
128 		mask = slave->prop.source_ports;			\
130 		dpn = slave->prop.sink_dpn_prop;			\
131 		mask = slave->prop.sink_ports;				\
146 	return -EINVAL;							\
148 static ssize_t field##_show(struct device *dev,				\
152 	struct sdw_slave *slave = dev_to_sdw_dev(dev);			\
156 	return field##_dpn_show(slave,					\
157 				dpn_attr->N, dpn_attr->dir,		\
158 				dpn_attr->format_string,		\
167 static int add_all_attributes(struct device *dev, int N, int dir)  in add_all_attributes()  argument
175 	dpn_attrs = devm_kcalloc(dev, SDW_DPN_ATTRIBUTES + 1,  in add_all_attributes()
179 		return -ENOMEM;  in add_all_attributes()
181 	ret = max_word_attribute_alloc(dev, &dpn_attrs[i++],  in add_all_attributes()
186 	ret = min_word_attribute_alloc(dev, &dpn_attrs[i++],  in add_all_attributes()
191 	ret = words_attribute_alloc(dev, &dpn_attrs[i++],  in add_all_attributes()
196 	ret = type_attribute_alloc(dev, &dpn_attrs[i++],  in add_all_attributes()
201 	ret = max_grouping_attribute_alloc(dev, &dpn_attrs[i++],  in add_all_attributes()
206 	ret = simple_ch_prep_sm_attribute_alloc(dev, &dpn_attrs[i++],  in add_all_attributes()
211 	ret = ch_prep_timeout_attribute_alloc(dev, &dpn_attrs[i++],  in add_all_attributes()
216 	ret = imp_def_interrupts_attribute_alloc(dev, &dpn_attrs[i++],  in add_all_attributes()
221 	ret = min_ch_attribute_alloc(dev, &dpn_attrs[i++],  in add_all_attributes()
226 	ret = max_ch_attribute_alloc(dev, &dpn_attrs[i++],  in add_all_attributes()
231 	ret = channels_attribute_alloc(dev, &dpn_attrs[i++],  in add_all_attributes()
236 	ret = ch_combinations_attribute_alloc(dev, &dpn_attrs[i++],  in add_all_attributes()
241 	ret = max_async_buffer_attribute_alloc(dev, &dpn_attrs[i++],  in add_all_attributes()
246 	ret = block_pack_mode_attribute_alloc(dev, &dpn_attrs[i++],  in add_all_attributes()
251 	ret = port_encoding_attribute_alloc(dev, &dpn_attrs[i++],  in add_all_attributes()
258 		dev_err(dev, "mismatch in attributes, allocated %d got %d\n",  in add_all_attributes()
260 		return -EINVAL;  in add_all_attributes()
263 	dpn_group = devm_kzalloc(dev, sizeof(*dpn_group), GFP_KERNEL);  in add_all_attributes()
265 		return -ENOMEM;  in add_all_attributes()
267 	dpn_group->attrs = dpn_attrs;  in add_all_attributes()
268 	dpn_group->name = devm_kasprintf(dev, GFP_KERNEL, "dp%d_%s",  in add_all_attributes()
270 	if (!dpn_group->name)  in add_all_attributes()
271 		return -ENOMEM;  in add_all_attributes()
273 	ret = devm_device_add_group(dev, dpn_group);  in add_all_attributes()
280 int sdw_slave_sysfs_dpn_init(struct sdw_slave *slave)  in sdw_slave_sysfs_dpn_init()  argument
286 	mask = slave->prop.source_ports;  in sdw_slave_sysfs_dpn_init()
288 		ret = add_all_attributes(&slave->dev, i, 1);  in sdw_slave_sysfs_dpn_init()
293 	mask = slave->prop.sink_ports;  in sdw_slave_sysfs_dpn_init()
295 		ret = add_all_attributes(&slave->dev, i, 0);  in sdw_slave_sysfs_dpn_init()