| /* ----------------------------------------------------------------------------- |
| * Copyright (c) 2011 Ozmo Inc |
| * Released under the GNU General Public License Version 2 (GPLv2). |
| * ----------------------------------------------------------------------------- |
| */ |
| #ifndef _OZPROTOCOL_H |
| #define _OZPROTOCOL_H |
| |
| #define PACKED __packed |
| |
| #define OZ_ETHERTYPE 0x892e |
| |
| /* Status codes |
| */ |
| #define OZ_STATUS_SUCCESS 0 |
| #define OZ_STATUS_INVALID_PARAM 1 |
| #define OZ_STATUS_TOO_MANY_PDS 2 |
| #define OZ_STATUS_NOT_ALLOWED 4 |
| #define OZ_STATUS_SESSION_MISMATCH 5 |
| #define OZ_STATUS_SESSION_TEARDOWN 6 |
| |
| /* This is the generic element header. |
| Every element starts with this. |
| */ |
| struct oz_elt { |
| u8 type; |
| u8 length; |
| } PACKED; |
| |
| #define oz_next_elt(__elt) \ |
| (struct oz_elt *)((u8 *)((__elt) + 1) + (__elt)->length) |
| |
| /* Protocol element IDs. |
| */ |
| #define OZ_ELT_CONNECT_REQ 0x06 |
| #define OZ_ELT_CONNECT_RSP 0x07 |
| #define OZ_ELT_DISCONNECT 0x08 |
| #define OZ_ELT_UPDATE_PARAM_REQ 0x11 |
| #define OZ_ELT_FAREWELL_REQ 0x12 |
| #define OZ_ELT_APP_DATA 0x31 |
| |
| /* This is the Ozmo header which is the first Ozmo specific part |
| * of a frame and comes after the MAC header. |
| */ |
| struct oz_hdr { |
| u8 control; |
| u8 last_pkt_num; |
| u32 pkt_num; |
| } PACKED; |
| |
| #define OZ_PROTOCOL_VERSION 0x1 |
| /* Bits in the control field. */ |
| #define OZ_VERSION_MASK 0xc |
| #define OZ_VERSION_SHIFT 2 |
| #define OZ_F_ACK 0x10 |
| #define OZ_F_ISOC 0x20 |
| #define OZ_F_MORE_DATA 0x40 |
| #define OZ_F_ACK_REQUESTED 0x80 |
| |
| #define oz_get_prot_ver(__x) (((__x) & OZ_VERSION_MASK) >> OZ_VERSION_SHIFT) |
| |
| /* Used to select the bits of packet number to put in the last_pkt_num. |
| */ |
| #define OZ_LAST_PN_MASK 0x00ff |
| |
| #define OZ_LAST_PN_HALF_CYCLE 127 |
| |
| #define OZ_LATENCY_MASK 0xc0 |
| #define OZ_ONE_MS_LATENCY 0x40 |
| #define OZ_TEN_MS_LATENCY 0x80 |
| |
| /* Connect request data structure. |
| */ |
| struct oz_elt_connect_req { |
| u8 mode; |
| u8 resv1[16]; |
| u8 pd_info; |
| u8 session_id; |
| u8 presleep; |
| u8 ms_isoc_latency; |
| u8 host_vendor; |
| u8 keep_alive; |
| u16 apps; |
| u8 max_len_div16; |
| u8 ms_per_isoc; |
| u8 resv3[2]; |
| } PACKED; |
| |
| /* mode field bits. |
| */ |
| #define OZ_MODE_POLLED 0x0 |
| #define OZ_MODE_TRIGGERED 0x1 |
| #define OZ_MODE_MASK 0xf |
| #define OZ_F_ISOC_NO_ELTS 0x40 |
| #define OZ_F_ISOC_ANYTIME 0x80 |
| #define OZ_NO_ELTS_ANYTIME 0xc0 |
| |
| /* Keep alive field. |
| */ |
| #define OZ_KALIVE_TYPE_MASK 0xc0 |
| #define OZ_KALIVE_VALUE_MASK 0x3f |
| #define OZ_KALIVE_SPECIAL 0x00 |
| #define OZ_KALIVE_SECS 0x40 |
| #define OZ_KALIVE_MINS 0x80 |
| #define OZ_KALIVE_HOURS 0xc0 |
| |
| /* Connect response data structure. |
| */ |
| struct oz_elt_connect_rsp { |
| u8 mode; |
| u8 status; |
| u8 resv1[3]; |
| u8 session_id; |
| u16 apps; |
| u32 resv2; |
| } PACKED; |
| |
| struct oz_elt_farewell { |
| u8 ep_num; |
| u8 index; |
| u8 report[1]; |
| } PACKED; |
| |
| struct oz_elt_update_param { |
| u8 resv1[16]; |
| u8 presleep; |
| u8 resv2; |
| u8 host_vendor; |
| u8 keepalive; |
| } PACKED; |
| |
| /* Header common to all application elements. |
| */ |
| struct oz_app_hdr { |
| u8 app_id; |
| u8 elt_seq_num; |
| } PACKED; |
| |
| /* Values for app_id. |
| */ |
| #define OZ_APPID_USB 0x1 |
| #define OZ_APPID_SERIAL 0x4 |
| #define OZ_APPID_MAX OZ_APPID_SERIAL |
| #define OZ_NB_APPS (OZ_APPID_MAX+1) |
| |
| /* USB header common to all elements for the USB application. |
| * This header extends the oz_app_hdr and comes directly after |
| * the element header in a USB application. |
| */ |
| struct oz_usb_hdr { |
| u8 app_id; |
| u8 elt_seq_num; |
| u8 type; |
| } PACKED; |
| |
| |
| |
| /* USB requests element subtypes (type field of hs_usb_hdr). |
| */ |
| #define OZ_GET_DESC_REQ 1 |
| #define OZ_GET_DESC_RSP 2 |
| #define OZ_SET_CONFIG_REQ 3 |
| #define OZ_SET_CONFIG_RSP 4 |
| #define OZ_SET_INTERFACE_REQ 5 |
| #define OZ_SET_INTERFACE_RSP 6 |
| #define OZ_VENDOR_CLASS_REQ 7 |
| #define OZ_VENDOR_CLASS_RSP 8 |
| #define OZ_GET_STATUS_REQ 9 |
| #define OZ_GET_STATUS_RSP 10 |
| #define OZ_CLEAR_FEATURE_REQ 11 |
| #define OZ_CLEAR_FEATURE_RSP 12 |
| #define OZ_SET_FEATURE_REQ 13 |
| #define OZ_SET_FEATURE_RSP 14 |
| #define OZ_GET_CONFIGURATION_REQ 15 |
| #define OZ_GET_CONFIGURATION_RSP 16 |
| #define OZ_GET_INTERFACE_REQ 17 |
| #define OZ_GET_INTERFACE_RSP 18 |
| #define OZ_SYNCH_FRAME_REQ 19 |
| #define OZ_SYNCH_FRAME_RSP 20 |
| #define OZ_USB_ENDPOINT_DATA 23 |
| |
| #define OZ_REQD_D2H 0x80 |
| |
| struct oz_get_desc_req { |
| u8 app_id; |
| u8 elt_seq_num; |
| u8 type; |
| u8 req_id; |
| u16 offset; |
| u16 size; |
| u8 req_type; |
| u8 desc_type; |
| __le16 w_index; |
| u8 index; |
| } PACKED; |
| |
| /* Values for desc_type field. |
| */ |
| #define OZ_DESC_DEVICE 0x01 |
| #define OZ_DESC_CONFIG 0x02 |
| #define OZ_DESC_STRING 0x03 |
| |
| /* Values for req_type field. |
| */ |
| #define OZ_RECP_MASK 0x1F |
| #define OZ_RECP_DEVICE 0x00 |
| #define OZ_RECP_INTERFACE 0x01 |
| #define OZ_RECP_ENDPOINT 0x02 |
| |
| #define OZ_REQT_MASK 0x60 |
| #define OZ_REQT_STD 0x00 |
| #define OZ_REQT_CLASS 0x20 |
| #define OZ_REQT_VENDOR 0x40 |
| |
| struct oz_get_desc_rsp { |
| u8 app_id; |
| u8 elt_seq_num; |
| u8 type; |
| u8 req_id; |
| __le16 offset; |
| __le16 total_size; |
| u8 rcode; |
| u8 data[1]; |
| } PACKED; |
| |
| struct oz_feature_req { |
| u8 app_id; |
| u8 elt_seq_num; |
| u8 type; |
| u8 req_id; |
| u8 recipient; |
| u8 index; |
| u16 feature; |
| } PACKED; |
| |
| struct oz_feature_rsp { |
| u8 app_id; |
| u8 elt_seq_num; |
| u8 type; |
| u8 req_id; |
| u8 rcode; |
| } PACKED; |
| |
| struct oz_set_config_req { |
| u8 app_id; |
| u8 elt_seq_num; |
| u8 type; |
| u8 req_id; |
| u8 index; |
| } PACKED; |
| |
| struct oz_set_config_rsp { |
| u8 app_id; |
| u8 elt_seq_num; |
| u8 type; |
| u8 req_id; |
| u8 rcode; |
| } PACKED; |
| |
| struct oz_set_interface_req { |
| u8 app_id; |
| u8 elt_seq_num; |
| u8 type; |
| u8 req_id; |
| u8 index; |
| u8 alternative; |
| } PACKED; |
| |
| struct oz_set_interface_rsp { |
| u8 app_id; |
| u8 elt_seq_num; |
| u8 type; |
| u8 req_id; |
| u8 rcode; |
| } PACKED; |
| |
| struct oz_get_interface_req { |
| u8 app_id; |
| u8 elt_seq_num; |
| u8 type; |
| u8 req_id; |
| u8 index; |
| } PACKED; |
| |
| struct oz_get_interface_rsp { |
| u8 app_id; |
| u8 elt_seq_num; |
| u8 type; |
| u8 req_id; |
| u8 rcode; |
| u8 alternative; |
| } PACKED; |
| |
| struct oz_vendor_class_req { |
| u8 app_id; |
| u8 elt_seq_num; |
| u8 type; |
| u8 req_id; |
| u8 req_type; |
| u8 request; |
| u16 value; |
| u16 index; |
| u8 data[1]; |
| } PACKED; |
| |
| struct oz_vendor_class_rsp { |
| u8 app_id; |
| u8 elt_seq_num; |
| u8 type; |
| u8 req_id; |
| u8 rcode; |
| u8 data[1]; |
| } PACKED; |
| |
| struct oz_data { |
| u8 app_id; |
| u8 elt_seq_num; |
| u8 type; |
| u8 endpoint; |
| u8 format; |
| } PACKED; |
| |
| struct oz_isoc_fixed { |
| u8 app_id; |
| u8 elt_seq_num; |
| u8 type; |
| u8 endpoint; |
| u8 format; |
| u8 unit_size; |
| u8 frame_number; |
| u8 data[1]; |
| } PACKED; |
| |
| struct oz_multiple_fixed { |
| u8 app_id; |
| u8 elt_seq_num; |
| u8 type; |
| u8 endpoint; |
| u8 format; |
| u8 unit_size; |
| u8 data[1]; |
| } PACKED; |
| |
| struct oz_fragmented { |
| u8 app_id; |
| u8 elt_seq_num; |
| u8 type; |
| u8 endpoint; |
| u8 format; |
| u16 total_size; |
| u16 offset; |
| u8 data[1]; |
| } PACKED; |
| |
| /* Note: the following does not get packaged in an element in the same way |
| * that other data formats are packaged. Instead the data is put in a frame |
| * directly after the oz_header and is the only permitted data in such a |
| * frame. The length of the data is directly determined from the frame size. |
| */ |
| struct oz_isoc_large { |
| u8 endpoint; |
| u8 format; |
| u8 ms_data; |
| u8 frame_number; |
| } PACKED; |
| |
| #define OZ_DATA_F_TYPE_MASK 0xF |
| #define OZ_DATA_F_MULTIPLE_FIXED 0x1 |
| #define OZ_DATA_F_MULTIPLE_VAR 0x2 |
| #define OZ_DATA_F_ISOC_FIXED 0x3 |
| #define OZ_DATA_F_ISOC_VAR 0x4 |
| #define OZ_DATA_F_FRAGMENTED 0x5 |
| #define OZ_DATA_F_ISOC_LARGE 0x7 |
| |
| #endif /* _OZPROTOCOL_H */ |
