[PATCH v3 6/8] greybus: Add mikroBUS manifest types

Ayush Singh
2024-03-15T18:50:21Z

Add data structures for parsing mikroBUS manifests, which are based on
greybus manifest.

Signed-off-by: Ayush Singh <ayushdevel1325@gmail.com>
---
include/linux/greybus/greybus_manifest.h | 49 ++++++++++++++++++++++++
1 file changed, 49 insertions(+)

diff --git a/include/linux/greybus/greybus_manifest.h b/include/linux/greybus/greybus_manifest.h
index bef9eb2093e9..83241e19d9b3 100644
--- a/include/linux/greybus/greybus_manifest.h
+++ b/include/linux/greybus/greybus_manifest.h
@@ -23,6 +23,9 @@ enum greybus_descriptor_type {
GREYBUS_TYPE_STRING = 0x02,
GREYBUS_TYPE_BUNDLE = 0x03,
GREYBUS_TYPE_CPORT = 0x04,
+ GREYBUS_TYPE_MIKROBUS = 0x05,
+ GREYBUS_TYPE_PROPERTY = 0x06,
+ GREYBUS_TYPE_DEVICE = 0x07,
};

enum greybus_protocol {
@@ -151,6 +154,49 @@ struct greybus_descriptor_cport {
__u8 protocol_id; /* enum greybus_protocol */
} __packed;

+/*
+ * A mikrobus descriptor is used to describe the details
+ * about the bus ocnfiguration for the add-on board
+ * connected to the mikrobus port.
+ */
+struct greybus_descriptor_mikrobus {
+ __u8 pin_state[12];
+} __packed;
+
+/*
+ * A property descriptor is used to pass named properties
+ * to device drivers through the unified device properties
+ * interface under linux/property.h
+ */
+struct greybus_descriptor_property {
+ __u8 length;
+ __u8 id;
+ __u8 propname_stringid;
+ __u8 type;
+ __u8 value[];
+} __packed;
+
+/*
+ * A device descriptor is used to describe the
+ * details required by a add-on board device
+ * driver.
+ */
+struct greybus_descriptor_device {
+ __u8 id;
+ __u8 driver_stringid;
+ __u8 protocol;
+ __u8 reg;
+ __le32 max_speed_hz;
+ __u8 irq;
+ __u8 irq_type;
+ __u8 mode;
+ __u8 prop_link;
+ __u8 gpio_link;
+ __u8 reg_link;
+ __u8 clock_link;
+ __u8 pad[1];
+} __packed;
+
struct greybus_descriptor_header {
__le16 size;
__u8 type; /* enum greybus_descriptor_type */
@@ -164,6 +210,9 @@ struct greybus_descriptor {
struct greybus_descriptor_interface interface;
struct greybus_descriptor_bundle bundle;
struct greybus_descriptor_cport cport;
+ struct greybus_descriptor_mikrobus mikrobus;
+ struct greybus_descriptor_property property;
+ struct greybus_descriptor_device device;
};
} __packed;

--
2.44.0