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Diffstat (limited to 'drivers/net/wireless/intel/iwlwifi/fw/api/cmdhdr.h')
| -rw-r--r-- | drivers/net/wireless/intel/iwlwifi/fw/api/cmdhdr.h | 211 |
1 files changed, 211 insertions, 0 deletions
diff --git a/drivers/net/wireless/intel/iwlwifi/fw/api/cmdhdr.h b/drivers/net/wireless/intel/iwlwifi/fw/api/cmdhdr.h new file mode 100644 index 000000000..ea4a3f04a --- /dev/null +++ b/drivers/net/wireless/intel/iwlwifi/fw/api/cmdhdr.h @@ -0,0 +1,211 @@ +/****************************************************************************** + * + * This file is provided under a dual BSD/GPLv2 license. When using or + * redistributing this file, you may do so under either license. + * + * GPL LICENSE SUMMARY + * + * Copyright(c) 2007 - 2014 Intel Corporation. All rights reserved. + * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH + * Copyright(c) 2016 - 2017 Intel Deutschland GmbH + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of version 2 of the GNU General Public License as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * The full GNU General Public License is included in this distribution + * in the file called COPYING. + * + * Contact Information: + * Intel Linux Wireless <linuxwifi@intel.com> + * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 + * + * BSD LICENSE + * + * Copyright(c) 2005 - 2014 Intel Corporation. All rights reserved. + * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH + * Copyright(c) 2016 - 2017 Intel Deutschland GmbH + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * * Neither the name Intel Corporation nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + *****************************************************************************/ +#ifndef __iwl_fw_api_cmdhdr_h__ +#define __iwl_fw_api_cmdhdr_h__ + +/** + * DOC: Host command section + * + * A host command is a command issued by the upper layer to the fw. There are + * several versions of fw that have several APIs. The transport layer is + * completely agnostic to these differences. + * The transport does provide helper functionality (i.e. SYNC / ASYNC mode), + */ +#define SEQ_TO_QUEUE(s) (((s) >> 8) & 0x1f) +#define QUEUE_TO_SEQ(q) (((q) & 0x1f) << 8) +#define SEQ_TO_INDEX(s) ((s) & 0xff) +#define INDEX_TO_SEQ(i) ((i) & 0xff) +#define SEQ_RX_FRAME cpu_to_le16(0x8000) + +/* + * those functions retrieve specific information from + * the id field in the iwl_host_cmd struct which contains + * the command id, the group id and the version of the command + * and vice versa +*/ +static inline u8 iwl_cmd_opcode(u32 cmdid) +{ + return cmdid & 0xFF; +} + +static inline u8 iwl_cmd_groupid(u32 cmdid) +{ + return ((cmdid & 0xFF00) >> 8); +} + +static inline u8 iwl_cmd_version(u32 cmdid) +{ + return ((cmdid & 0xFF0000) >> 16); +} + +static inline u32 iwl_cmd_id(u8 opcode, u8 groupid, u8 version) +{ + return opcode + (groupid << 8) + (version << 16); +} + +/* make u16 wide id out of u8 group and opcode */ +#define WIDE_ID(grp, opcode) (((grp) << 8) | (opcode)) +#define DEF_ID(opcode) ((1 << 8) | (opcode)) + +/* due to the conversion, this group is special; new groups + * should be defined in the appropriate fw-api header files + */ +#define IWL_ALWAYS_LONG_GROUP 1 + +/** + * struct iwl_cmd_header - (short) command header format + * + * This header format appears in the beginning of each command sent from the + * driver, and each response/notification received from uCode. + */ +struct iwl_cmd_header { + /** + * @cmd: Command ID: REPLY_RXON, etc. + */ + u8 cmd; + /** + * @group_id: group ID, for commands with groups + */ + u8 group_id; + /** + * @sequence: + * Sequence number for the command. + * + * The driver sets up the sequence number to values of its choosing. + * uCode does not use this value, but passes it back to the driver + * when sending the response to each driver-originated command, so + * the driver can match the response to the command. Since the values + * don't get used by uCode, the driver may set up an arbitrary format. + * + * There is one exception: uCode sets bit 15 when it originates + * the response/notification, i.e. when the response/notification + * is not a direct response to a command sent by the driver. For + * example, uCode issues REPLY_RX when it sends a received frame + * to the driver; it is not a direct response to any driver command. + * + * The Linux driver uses the following format: + * + * 0:7 tfd index - position within TX queue + * 8:12 TX queue id + * 13:14 reserved + * 15 unsolicited RX or uCode-originated notification + */ + __le16 sequence; +} __packed; + +/** + * struct iwl_cmd_header_wide + * + * This header format appears in the beginning of each command sent from the + * driver, and each response/notification received from uCode. + * this is the wide version that contains more information about the command + * like length, version and command type + * + * @cmd: command ID, like in &struct iwl_cmd_header + * @group_id: group ID, like in &struct iwl_cmd_header + * @sequence: sequence, like in &struct iwl_cmd_header + * @length: length of the command + * @reserved: reserved + * @version: command version + */ +struct iwl_cmd_header_wide { + u8 cmd; + u8 group_id; + __le16 sequence; + __le16 length; + u8 reserved; + u8 version; +} __packed; + +/** + * struct iwl_calib_res_notif_phy_db - Receive phy db chunk after calibrations + * @type: type of the result - mostly ignored + * @length: length of the data + * @data: data, length in @length + */ +struct iwl_calib_res_notif_phy_db { + __le16 type; + __le16 length; + u8 data[]; +} __packed; + +/** + * struct iwl_phy_db_cmd - configure operational ucode + * @type: type of the data + * @length: length of the data + * @data: data, length in @length + */ +struct iwl_phy_db_cmd { + __le16 type; + __le16 length; + u8 data[]; +} __packed; + +/** + * struct iwl_cmd_response - generic response struct for most commands + * @status: status of the command asked, changes for each one + */ +struct iwl_cmd_response { + __le32 status; +}; + +#endif /* __iwl_fw_api_cmdhdr_h__ */ |