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greybus: module id attributes
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parent
291f3b9e61
commit
21ee4116fd
2 changed files with 76 additions and 12 deletions
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@ -216,20 +216,81 @@ static umode_t function_attrs_are_visible(struct kobject *kobj,
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return 0;
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}
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static struct attribute_group function_addr_grp = {
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static struct attribute_group function_attr_grp = {
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.attrs = function_attrs,
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.is_visible = function_attrs_are_visible,
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};
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#if 0
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struct greybus_descriptor_module_id {
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__le16 vendor;
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__le16 product;
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__le16 version;
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__u8 vendor_stringid;
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__u8 product_stringid;
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/* Module fields */
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#define greybus_module_attr(field) \
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static ssize_t module_##field##_show(struct device *dev, \
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struct device_attribute *attr, \
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char *buf) \
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{ \
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struct greybus_device *gdev = to_greybus_device(dev); \
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return sprintf(buf, "%x\n", gdev->module_id.field); \
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} \
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static DEVICE_ATTR_RO(module_##field)
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greybus_module_attr(vendor);
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greybus_module_attr(product);
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greybus_module_attr(version);
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static ssize_t module_vendor_string_show(struct device *dev,
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struct device_attribute *attr,
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char *buf)
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{
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struct greybus_device *gdev = to_greybus_device(dev);
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return sprintf(buf, "%s",
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greybus_string(gdev->module_id.vendor_stringid));
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}
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static DEVICE_ATTR_RO(module_vendor_string);
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static ssize_t module_product_string_show(struct device *dev,
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struct device_attribute *attr,
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char *buf)
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{
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struct greybus_device *gdev = to_greybus_device(dev);
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return sprintf(buf, "%s",
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greybus_string(gdev->module_id.product_stringid));
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}
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static DEVICE_ATTR_RO(module_product_string);
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static struct attribute *module_attrs[] = {
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&dev_attr_module_vendor.attr,
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&dev_attr_module_product.attr,
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&dev_attr_module_version.attr,
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&dev_attr_module_vendor_string.attr,
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&dev_attr_module_product_string.attr,
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NULL,
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};
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#endif
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static umode_t module_attrs_are_visible(struct kobject *kobj,
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struct attribute *a, int n)
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{
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struct greybus_device *gdev = to_greybus_device(kobj_to_dev(kobj));
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if ((a == &dev_attr_module_vendor_string.attr) &&
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(gdev->module_id.vendor_stringid))
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return a->mode;
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if ((a == &dev_attr_module_product_string.attr) &&
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(gdev->module_id.product_stringid))
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return a->mode;
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// FIXME - make this a dynamic structure to "know" if it really is here
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// or not easier?
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if (gdev->module_id.vendor ||
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gdev->module_id.product ||
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gdev->module_id.version)
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return a->mode;
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return 0;
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}
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static struct attribute_group module_attr_grp = {
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.attrs = module_attrs,
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.is_visible = module_attrs_are_visible,
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};
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/* Serial Number */
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static ssize_t serial_number_show(struct device *dev,
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@ -246,15 +307,16 @@ static struct attribute *serial_number_attrs[] = {
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NULL,
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};
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static struct attribute_group serial_number_grp = {
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static struct attribute_group serial_number_attr_grp = {
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.attrs = serial_number_attrs,
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.is_visible = function_attrs_are_visible,
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};
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static const struct attribute_group *greybus_module_groups[] = {
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&function_addr_grp,
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&serial_number_grp,
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&function_attr_grp,
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&module_attr_grp,
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&serial_number_attr_grp,
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NULL,
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};
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@ -178,6 +178,8 @@ struct greybus_device *greybus_new_device(struct device *parent,
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int size);
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void greybus_remove_device(struct greybus_device *gdev);
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const u8 *greybus_string(int id);
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/* Internal functions to gb module, move to internal .h file eventually. */
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int gb_new_ap_msg(u8 *data, int length);
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