drivers/net/wireless/iwlwifi/iwl-fw-error-dump.h

   1 /******************************************************************************
   2  *
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   4  * redistributing this file, you may do so under either license.
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   6  * GPL LICENSE SUMMARY
   7  *
   8  * Copyright(c) 2014 Intel Corporation. All rights reserved.
   9  * Copyright(c) 2014 Intel Mobile Communications GmbH
  10  *
  11  * This program is free software; you can redistribute it and/or modify
  12  * it under the terms of version 2 of the GNU General Public License as
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  18  * General Public License for more details.
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  24  *
  25  * The full GNU General Public License is included in this distribution
  26  * in the file called COPYING.
  27  *
  28  * Contact Information:
  29  *  Intel Linux Wireless <ilw@linux.intel.com>
  30  * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
  31  *
  32  * BSD LICENSE
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  34  * Copyright(c) 2014 Intel Corporation. All rights reserved.
  35  * Copyright(c) 2014 Intel Mobile Communications GmbH
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  52  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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  63  *****************************************************************************/
  64
  65 #ifndef __fw_error_dump_h__
  66 #define __fw_error_dump_h__
  67
  68 #include <linux/types.h>
  69
  70 #define IWL_FW_ERROR_DUMP_BARKER        0x14789632
  71
  72 /**
  73  * enum iwl_fw_error_dump_type - types of data in the dump file
  74  * @IWL_FW_ERROR_DUMP_SRAM:
  75  * @IWL_FW_ERROR_DUMP_CSR: Control Status Registers - from offset 0
  76  * @IWL_FW_ERROR_DUMP_RXF:
  77  * @IWL_FW_ERROR_DUMP_TXCMD: last TX command data, structured as
  78  *      &struct iwl_fw_error_dump_txcmd packets
  79  * @IWL_FW_ERROR_DUMP_DEV_FW_INFO:  struct %iwl_fw_error_dump_info
  80  *      info on the device / firmware.
  81  * @IWL_FW_ERROR_DUMP_FW_MONITOR: firmware monitor
  82  * @IWL_FW_ERROR_DUMP_PRPH: range of periphery registers - there can be several
  83  *      sections like this in a single file.
  84  * @IWL_FW_ERROR_DUMP_FH_REGS: range of FH registers
  85  */
  86 enum iwl_fw_error_dump_type {
  87         IWL_FW_ERROR_DUMP_SRAM = 0,
  88         IWL_FW_ERROR_DUMP_CSR = 1,
  89         IWL_FW_ERROR_DUMP_RXF = 2,
  90         IWL_FW_ERROR_DUMP_TXCMD = 3,
  91         IWL_FW_ERROR_DUMP_DEV_FW_INFO = 4,
  92         IWL_FW_ERROR_DUMP_FW_MONITOR = 5,
  93         IWL_FW_ERROR_DUMP_PRPH = 6,
  94         IWL_FW_ERROR_DUMP_TXF = 7,
  95         IWL_FW_ERROR_DUMP_FH_REGS = 8,
  96
  97         IWL_FW_ERROR_DUMP_MAX,
  98 };
  99
 100 /**
 101  * struct iwl_fw_error_dump_data - data for one type
 102  * @type: %enum iwl_fw_error_dump_type
 103  * @len: the length starting from %data
 104  * @data: the data itself
 105  */
 106 struct iwl_fw_error_dump_data {
 107         __le32 type;
 108         __le32 len;
 109         __u8 data[];
 110 } __packed;
 111
 112 /**
 113  * struct iwl_fw_error_dump_file - the layout of the header of the file
 114  * @barker: must be %IWL_FW_ERROR_DUMP_BARKER
 115  * @file_len: the length of all the file starting from %barker
 116  * @data: array of %struct iwl_fw_error_dump_data
 117  */
 118 struct iwl_fw_error_dump_file {
 119         __le32 barker;
 120         __le32 file_len;
 121         u8 data[0];
 122 } __packed;
 123
 124 /**
 125  * struct iwl_fw_error_dump_txcmd - TX command data
 126  * @cmdlen: original length of command
 127  * @caplen: captured length of command (may be less)
 128  * @data: captured command data, @caplen bytes
 129  */
 130 struct iwl_fw_error_dump_txcmd {
 131         __le32 cmdlen;
 132         __le32 caplen;
 133         u8 data[];
 134 } __packed;
 135
 136 enum iwl_fw_error_dump_family {
 137         IWL_FW_ERROR_DUMP_FAMILY_7 = 7,
 138         IWL_FW_ERROR_DUMP_FAMILY_8 = 8,
 139 };
 140
 141 /**
 142  * struct iwl_fw_error_dump_info - info on the device / firmware
 143  * @device_family: the family of the device (7 / 8)
 144  * @hw_step: the step of the device
 145  * @fw_human_readable: human readable FW version
 146  * @dev_human_readable: name of the device
 147  * @bus_human_readable: name of the bus used
 148  */
 149 struct iwl_fw_error_dump_info {
 150         __le32 device_family;
 151         __le32 hw_step;
 152         u8 fw_human_readable[FW_VER_HUMAN_READABLE_SZ];
 153         u8 dev_human_readable[64];
 154         u8 bus_human_readable[8];
 155 } __packed;
 156
 157 /**
 158  * struct iwl_fw_error_dump_fw_mon - FW monitor data
 159  * @fw_mon_wr_ptr: the position of the write pointer in the cyclic buffer
 160  * @fw_mon_base_ptr: base pointer of the data
 161  * @fw_mon_cycle_cnt: number of wrap arounds
 162  * @reserved: for future use
 163  * @data: captured data
 164  */
 165 struct iwl_fw_error_dump_fw_mon {
 166         __le32 fw_mon_wr_ptr;
 167         __le32 fw_mon_base_ptr;
 168         __le32 fw_mon_cycle_cnt;
 169         __le32 reserved[3];
 170         u8 data[];
 171 } __packed;
 172
 173 /**
 174  * struct iwl_fw_error_dump_prph - periphery registers data
 175  * @prph_start: address of the first register in this chunk
 176  * @data: the content of the registers
 177  */
 178 struct iwl_fw_error_dump_prph {
 179         __le32 prph_start;
 180         __le32 data[];
 181 };
 182
 183 /**
 184  * iwl_fw_error_next_data - advance fw error dump data pointer
 185  * @data: previous data block
 186  * Returns: next data block
 187  */
 188 static inline struct iwl_fw_error_dump_data *
 189 iwl_fw_error_next_data(struct iwl_fw_error_dump_data *data)
 190 {
 191         return (void *)(data->data + le32_to_cpu(data->len));
 192 }
 193
 194 #endif /* __fw_error_dump_h__ */