Emmanuel Grumbach | c85eb61 | 2011-06-14 10:13:24 +0300 | [diff] [blame] | 1 | /****************************************************************************** |
| 2 | * |
| 3 | * This file is provided under a dual BSD/GPLv2 license. When using or |
| 4 | * redistributing this file, you may do so under either license. |
| 5 | * |
| 6 | * GPL LICENSE SUMMARY |
| 7 | * |
Johannes Berg | 128e63e | 2013-01-21 21:39:26 +0100 | [diff] [blame] | 8 | * Copyright(c) 2007 - 2013 Intel Corporation. All rights reserved. |
Emmanuel Grumbach | c85eb61 | 2011-06-14 10:13:24 +0300 | [diff] [blame] | 9 | * |
| 10 | * This program is free software; you can redistribute it and/or modify |
| 11 | * it under the terms of version 2 of the GNU General Public License as |
| 12 | * published by the Free Software Foundation. |
| 13 | * |
| 14 | * This program is distributed in the hope that it will be useful, but |
| 15 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
| 16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 17 | * General Public License for more details. |
| 18 | * |
| 19 | * You should have received a copy of the GNU General Public License |
| 20 | * along with this program; if not, write to the Free Software |
| 21 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, |
| 22 | * USA |
| 23 | * |
| 24 | * The full GNU General Public License is included in this distribution |
Emmanuel Grumbach | 410dc5a | 2013-02-18 09:22:28 +0200 | [diff] [blame] | 25 | * in the file called COPYING. |
Emmanuel Grumbach | c85eb61 | 2011-06-14 10:13:24 +0300 | [diff] [blame] | 26 | * |
| 27 | * Contact Information: |
| 28 | * Intel Linux Wireless <ilw@linux.intel.com> |
| 29 | * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 |
| 30 | * |
| 31 | * BSD LICENSE |
| 32 | * |
Johannes Berg | 128e63e | 2013-01-21 21:39:26 +0100 | [diff] [blame] | 33 | * Copyright(c) 2005 - 2013 Intel Corporation. All rights reserved. |
Emmanuel Grumbach | c85eb61 | 2011-06-14 10:13:24 +0300 | [diff] [blame] | 34 | * All rights reserved. |
| 35 | * |
| 36 | * Redistribution and use in source and binary forms, with or without |
| 37 | * modification, are permitted provided that the following conditions |
| 38 | * are met: |
| 39 | * |
| 40 | * * Redistributions of source code must retain the above copyright |
| 41 | * notice, this list of conditions and the following disclaimer. |
| 42 | * * Redistributions in binary form must reproduce the above copyright |
| 43 | * notice, this list of conditions and the following disclaimer in |
| 44 | * the documentation and/or other materials provided with the |
| 45 | * distribution. |
| 46 | * * Neither the name Intel Corporation nor the names of its |
| 47 | * contributors may be used to endorse or promote products derived |
| 48 | * from this software without specific prior written permission. |
| 49 | * |
| 50 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 51 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 52 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| 53 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| 54 | * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 55 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| 56 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 57 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 58 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 59 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| 60 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 61 | * |
| 62 | *****************************************************************************/ |
Emmanuel Grumbach | 41c5054 | 2011-07-11 08:51:04 +0300 | [diff] [blame] | 63 | #ifndef __iwl_trans_h__ |
| 64 | #define __iwl_trans_h__ |
Emmanuel Grumbach | 253a634 | 2011-07-11 07:39:46 -0700 | [diff] [blame] | 65 | |
Emmanuel Grumbach | e679378 | 2012-02-16 09:47:01 +0200 | [diff] [blame] | 66 | #include <linux/ieee80211.h> |
Johannes Berg | 930dfd5 | 2012-03-05 11:24:43 -0800 | [diff] [blame] | 67 | #include <linux/mm.h> /* for page_address */ |
Johannes Berg | 2bfb509 | 2012-12-27 21:43:48 +0100 | [diff] [blame] | 68 | #include <linux/lockdep.h> |
Emmanuel Grumbach | a72b8b0 | 2011-08-25 23:11:13 -0700 | [diff] [blame] | 69 | |
Emmanuel Grumbach | 69655eb | 2012-02-06 14:30:54 +0200 | [diff] [blame] | 70 | #include "iwl-debug.h" |
Johannes Berg | 6238b00 | 2012-04-02 15:04:33 +0200 | [diff] [blame] | 71 | #include "iwl-config.h" |
| 72 | #include "iwl-fw.h" |
Arik Nemtsov | 2a988e9 | 2013-12-01 13:50:40 +0200 | [diff] [blame] | 73 | #include "iwl-op-mode.h" |
Emmanuel Grumbach | 87e5666 | 2011-08-25 23:10:50 -0700 | [diff] [blame] | 74 | |
Emmanuel Grumbach | 6039618 | 2012-02-06 16:41:58 +0200 | [diff] [blame] | 75 | /** |
| 76 | * DOC: Transport layer - what is it ? |
| 77 | * |
| 78 | * The tranport layer is the layer that deals with the HW directly. It provides |
| 79 | * an abstraction of the underlying HW to the upper layer. The transport layer |
| 80 | * doesn't provide any policy, algorithm or anything of this kind, but only |
| 81 | * mechanisms to make the HW do something.It is not completely stateless but |
| 82 | * close to it. |
| 83 | * We will have an implementation for each different supported bus. |
| 84 | */ |
| 85 | |
| 86 | /** |
| 87 | * DOC: Life cycle of the transport layer |
| 88 | * |
| 89 | * The transport layer has a very precise life cycle. |
| 90 | * |
| 91 | * 1) A helper function is called during the module initialization and |
| 92 | * registers the bus driver's ops with the transport's alloc function. |
| 93 | * 2) Bus's probe calls to the transport layer's allocation functions. |
| 94 | * Of course this function is bus specific. |
| 95 | * 3) This allocation functions will spawn the upper layer which will |
| 96 | * register mac80211. |
| 97 | * |
| 98 | * 4) At some point (i.e. mac80211's start call), the op_mode will call |
| 99 | * the following sequence: |
| 100 | * start_hw |
| 101 | * start_fw |
| 102 | * |
| 103 | * 5) Then when finished (or reset): |
Arik Nemtsov | a408284 | 2013-11-24 19:10:46 +0200 | [diff] [blame] | 104 | * stop_device |
Emmanuel Grumbach | 6039618 | 2012-02-06 16:41:58 +0200 | [diff] [blame] | 105 | * |
| 106 | * 6) Eventually, the free function will be called. |
| 107 | */ |
| 108 | |
Emmanuel Grumbach | 6039618 | 2012-02-06 16:41:58 +0200 | [diff] [blame] | 109 | /** |
| 110 | * DOC: Host command section |
| 111 | * |
| 112 | * A host command is a commaned issued by the upper layer to the fw. There are |
| 113 | * several versions of fw that have several APIs. The transport layer is |
| 114 | * completely agnostic to these differences. |
| 115 | * The transport does provide helper functionnality (i.e. SYNC / ASYNC mode), |
| 116 | */ |
Johannes Berg | f8d7c1a | 2012-03-06 13:31:02 -0800 | [diff] [blame] | 117 | #define SEQ_TO_QUEUE(s) (((s) >> 8) & 0x1f) |
| 118 | #define QUEUE_TO_SEQ(q) (((q) & 0x1f) << 8) |
| 119 | #define SEQ_TO_INDEX(s) ((s) & 0xff) |
| 120 | #define INDEX_TO_SEQ(i) ((i) & 0xff) |
| 121 | #define SEQ_RX_FRAME cpu_to_le16(0x8000) |
| 122 | |
| 123 | /** |
| 124 | * struct iwl_cmd_header |
| 125 | * |
| 126 | * This header format appears in the beginning of each command sent from the |
| 127 | * driver, and each response/notification received from uCode. |
| 128 | */ |
| 129 | struct iwl_cmd_header { |
| 130 | u8 cmd; /* Command ID: REPLY_RXON, etc. */ |
| 131 | u8 flags; /* 0:5 reserved, 6 abort, 7 internal */ |
| 132 | /* |
| 133 | * The driver sets up the sequence number to values of its choosing. |
| 134 | * uCode does not use this value, but passes it back to the driver |
| 135 | * when sending the response to each driver-originated command, so |
| 136 | * the driver can match the response to the command. Since the values |
| 137 | * don't get used by uCode, the driver may set up an arbitrary format. |
| 138 | * |
| 139 | * There is one exception: uCode sets bit 15 when it originates |
| 140 | * the response/notification, i.e. when the response/notification |
| 141 | * is not a direct response to a command sent by the driver. For |
| 142 | * example, uCode issues REPLY_RX when it sends a received frame |
| 143 | * to the driver; it is not a direct response to any driver command. |
| 144 | * |
| 145 | * The Linux driver uses the following format: |
| 146 | * |
| 147 | * 0:7 tfd index - position within TX queue |
| 148 | * 8:12 TX queue id |
| 149 | * 13:14 reserved |
| 150 | * 15 unsolicited RX or uCode-originated notification |
| 151 | */ |
| 152 | __le16 sequence; |
| 153 | } __packed; |
| 154 | |
Johannes Berg | c08ce20 | 2012-05-16 22:54:26 +0200 | [diff] [blame] | 155 | /* iwl_cmd_header flags value */ |
| 156 | #define IWL_CMD_FAILED_MSK 0x40 |
| 157 | |
Johannes Berg | f8d7c1a | 2012-03-06 13:31:02 -0800 | [diff] [blame] | 158 | |
| 159 | #define FH_RSCSR_FRAME_SIZE_MSK 0x00003FFF /* bits 0-13 */ |
Johannes Berg | 0c19744 | 2012-03-15 13:26:43 -0700 | [diff] [blame] | 160 | #define FH_RSCSR_FRAME_INVALID 0x55550000 |
| 161 | #define FH_RSCSR_FRAME_ALIGN 0x40 |
Johannes Berg | f8d7c1a | 2012-03-06 13:31:02 -0800 | [diff] [blame] | 162 | |
| 163 | struct iwl_rx_packet { |
| 164 | /* |
| 165 | * The first 4 bytes of the RX frame header contain both the RX frame |
| 166 | * size and some flags. |
| 167 | * Bit fields: |
| 168 | * 31: flag flush RB request |
| 169 | * 30: flag ignore TC (terminal counter) request |
| 170 | * 29: flag fast IRQ request |
| 171 | * 28-14: Reserved |
| 172 | * 13-00: RX frame size |
| 173 | */ |
| 174 | __le32 len_n_flags; |
| 175 | struct iwl_cmd_header hdr; |
| 176 | u8 data[]; |
| 177 | } __packed; |
Emmanuel Grumbach | 522376d | 2011-09-06 09:31:19 -0700 | [diff] [blame] | 178 | |
Emmanuel Grumbach | 6039618 | 2012-02-06 16:41:58 +0200 | [diff] [blame] | 179 | /** |
| 180 | * enum CMD_MODE - how to send the host commands ? |
| 181 | * |
| 182 | * @CMD_SYNC: The caller will be stalled until the fw responds to the command |
Eliad Peller | e89044d | 2013-07-16 17:33:26 +0300 | [diff] [blame] | 183 | * @CMD_ASYNC: Return right away and don't wait for the response |
Emmanuel Grumbach | 6039618 | 2012-02-06 16:41:58 +0200 | [diff] [blame] | 184 | * @CMD_WANT_SKB: valid only with CMD_SYNC. The caller needs the buffer of the |
Emmanuel Grumbach | 9679142 | 2012-07-24 01:58:32 +0300 | [diff] [blame] | 185 | * response. The caller needs to call iwl_free_resp when done. |
Emmanuel Grumbach | 6039618 | 2012-02-06 16:41:58 +0200 | [diff] [blame] | 186 | */ |
| 187 | enum CMD_MODE { |
Johannes Berg | 4a4ee10 | 2013-01-24 14:05:43 +0100 | [diff] [blame] | 188 | CMD_SYNC = 0, |
| 189 | CMD_ASYNC = BIT(0), |
| 190 | CMD_WANT_SKB = BIT(1), |
Eran Harary | 4f59334 | 2013-05-13 07:53:26 +0300 | [diff] [blame] | 191 | CMD_SEND_IN_RFKILL = BIT(2), |
Emmanuel Grumbach | 522376d | 2011-09-06 09:31:19 -0700 | [diff] [blame] | 192 | }; |
| 193 | |
| 194 | #define DEF_CMD_PAYLOAD_SIZE 320 |
| 195 | |
| 196 | /** |
| 197 | * struct iwl_device_cmd |
| 198 | * |
| 199 | * For allocation of the command and tx queues, this establishes the overall |
| 200 | * size of the largest command we send to uCode, except for commands that |
| 201 | * aren't fully copied and use other TFD space. |
| 202 | */ |
| 203 | struct iwl_device_cmd { |
| 204 | struct iwl_cmd_header hdr; /* uCode API */ |
Emmanuel Grumbach | 132f98c | 2011-09-20 15:37:24 -0700 | [diff] [blame] | 205 | u8 payload[DEF_CMD_PAYLOAD_SIZE]; |
Emmanuel Grumbach | 522376d | 2011-09-06 09:31:19 -0700 | [diff] [blame] | 206 | } __packed; |
| 207 | |
| 208 | #define TFD_MAX_PAYLOAD_SIZE (sizeof(struct iwl_device_cmd)) |
| 209 | |
Johannes Berg | 1afbfb6 | 2013-02-26 11:32:26 +0100 | [diff] [blame] | 210 | /* |
| 211 | * number of transfer buffers (fragments) per transmit frame descriptor; |
| 212 | * this is just the driver's idea, the hardware supports 20 |
| 213 | */ |
| 214 | #define IWL_MAX_CMD_TBS_PER_TFD 2 |
Emmanuel Grumbach | 522376d | 2011-09-06 09:31:19 -0700 | [diff] [blame] | 215 | |
Emmanuel Grumbach | 6039618 | 2012-02-06 16:41:58 +0200 | [diff] [blame] | 216 | /** |
| 217 | * struct iwl_hcmd_dataflag - flag for each one of the chunks of the command |
| 218 | * |
Johannes Berg | f4feb8a | 2012-10-19 14:24:43 +0200 | [diff] [blame] | 219 | * @IWL_HCMD_DFL_NOCOPY: By default, the command is copied to the host command's |
Emmanuel Grumbach | 6039618 | 2012-02-06 16:41:58 +0200 | [diff] [blame] | 220 | * ring. The transport layer doesn't map the command's buffer to DMA, but |
Eliad Peller | e89044d | 2013-07-16 17:33:26 +0300 | [diff] [blame] | 221 | * rather copies it to a previously allocated DMA buffer. This flag tells |
Emmanuel Grumbach | 6039618 | 2012-02-06 16:41:58 +0200 | [diff] [blame] | 222 | * the transport layer not to copy the command, but to map the existing |
Johannes Berg | 3e2c159 | 2012-10-24 13:26:15 +0200 | [diff] [blame] | 223 | * buffer (that is passed in) instead. This saves the memcpy and allows |
| 224 | * commands that are bigger than the fixed buffer to be submitted. |
| 225 | * Note that a TFD entry after a NOCOPY one cannot be a normal copied one. |
Johannes Berg | f4feb8a | 2012-10-19 14:24:43 +0200 | [diff] [blame] | 226 | * @IWL_HCMD_DFL_DUP: Only valid without NOCOPY, duplicate the memory for this |
| 227 | * chunk internally and free it again after the command completes. This |
| 228 | * can (currently) be used only once per command. |
Johannes Berg | 3e2c159 | 2012-10-24 13:26:15 +0200 | [diff] [blame] | 229 | * Note that a TFD entry after a DUP one cannot be a normal copied one. |
Emmanuel Grumbach | 6039618 | 2012-02-06 16:41:58 +0200 | [diff] [blame] | 230 | */ |
Emmanuel Grumbach | 522376d | 2011-09-06 09:31:19 -0700 | [diff] [blame] | 231 | enum iwl_hcmd_dataflag { |
| 232 | IWL_HCMD_DFL_NOCOPY = BIT(0), |
Johannes Berg | f4feb8a | 2012-10-19 14:24:43 +0200 | [diff] [blame] | 233 | IWL_HCMD_DFL_DUP = BIT(1), |
Emmanuel Grumbach | 522376d | 2011-09-06 09:31:19 -0700 | [diff] [blame] | 234 | }; |
| 235 | |
| 236 | /** |
| 237 | * struct iwl_host_cmd - Host command to the uCode |
Emmanuel Grumbach | 6039618 | 2012-02-06 16:41:58 +0200 | [diff] [blame] | 238 | * |
Emmanuel Grumbach | 522376d | 2011-09-06 09:31:19 -0700 | [diff] [blame] | 239 | * @data: array of chunks that composes the data of the host command |
Johannes Berg | 65b94a4 | 2012-03-05 11:24:38 -0800 | [diff] [blame] | 240 | * @resp_pkt: response packet, if %CMD_WANT_SKB was set |
| 241 | * @_rx_page_order: (internally used to free response packet) |
| 242 | * @_rx_page_addr: (internally used to free response packet) |
Emmanuel Grumbach | 247c61d | 2011-09-20 15:37:23 -0700 | [diff] [blame] | 243 | * @handler_status: return value of the handler of the command |
| 244 | * (put in setup_rx_handlers) - valid for SYNC mode only |
Emmanuel Grumbach | 6039618 | 2012-02-06 16:41:58 +0200 | [diff] [blame] | 245 | * @flags: can be CMD_* |
Eliad Peller | e89044d | 2013-07-16 17:33:26 +0300 | [diff] [blame] | 246 | * @len: array of the lengths of the chunks in data |
Emmanuel Grumbach | 6039618 | 2012-02-06 16:41:58 +0200 | [diff] [blame] | 247 | * @dataflags: IWL_HCMD_DFL_* |
Emmanuel Grumbach | 522376d | 2011-09-06 09:31:19 -0700 | [diff] [blame] | 248 | * @id: id of the host command |
| 249 | */ |
| 250 | struct iwl_host_cmd { |
Johannes Berg | 1afbfb6 | 2013-02-26 11:32:26 +0100 | [diff] [blame] | 251 | const void *data[IWL_MAX_CMD_TBS_PER_TFD]; |
Johannes Berg | 65b94a4 | 2012-03-05 11:24:38 -0800 | [diff] [blame] | 252 | struct iwl_rx_packet *resp_pkt; |
| 253 | unsigned long _rx_page_addr; |
| 254 | u32 _rx_page_order; |
Emmanuel Grumbach | 247c61d | 2011-09-20 15:37:23 -0700 | [diff] [blame] | 255 | int handler_status; |
| 256 | |
Emmanuel Grumbach | 522376d | 2011-09-06 09:31:19 -0700 | [diff] [blame] | 257 | u32 flags; |
Johannes Berg | 1afbfb6 | 2013-02-26 11:32:26 +0100 | [diff] [blame] | 258 | u16 len[IWL_MAX_CMD_TBS_PER_TFD]; |
| 259 | u8 dataflags[IWL_MAX_CMD_TBS_PER_TFD]; |
Emmanuel Grumbach | 522376d | 2011-09-06 09:31:19 -0700 | [diff] [blame] | 260 | u8 id; |
| 261 | }; |
Emmanuel Grumbach | 41c5054 | 2011-07-11 08:51:04 +0300 | [diff] [blame] | 262 | |
Johannes Berg | 65b94a4 | 2012-03-05 11:24:38 -0800 | [diff] [blame] | 263 | static inline void iwl_free_resp(struct iwl_host_cmd *cmd) |
| 264 | { |
| 265 | free_pages(cmd->_rx_page_addr, cmd->_rx_page_order); |
| 266 | } |
| 267 | |
Johannes Berg | 930dfd5 | 2012-03-05 11:24:43 -0800 | [diff] [blame] | 268 | struct iwl_rx_cmd_buffer { |
| 269 | struct page *_page; |
Johannes Berg | 0c19744 | 2012-03-15 13:26:43 -0700 | [diff] [blame] | 270 | int _offset; |
| 271 | bool _page_stolen; |
Emmanuel Grumbach | d13f186 | 2013-01-23 10:59:29 +0200 | [diff] [blame] | 272 | u32 _rx_page_order; |
Eric Dumazet | ed90542 | 2012-03-24 00:29:46 -0400 | [diff] [blame] | 273 | unsigned int truesize; |
Johannes Berg | 930dfd5 | 2012-03-05 11:24:43 -0800 | [diff] [blame] | 274 | }; |
| 275 | |
| 276 | static inline void *rxb_addr(struct iwl_rx_cmd_buffer *r) |
| 277 | { |
Johannes Berg | 0c19744 | 2012-03-15 13:26:43 -0700 | [diff] [blame] | 278 | return (void *)((unsigned long)page_address(r->_page) + r->_offset); |
| 279 | } |
| 280 | |
| 281 | static inline int rxb_offset(struct iwl_rx_cmd_buffer *r) |
| 282 | { |
| 283 | return r->_offset; |
Johannes Berg | 930dfd5 | 2012-03-05 11:24:43 -0800 | [diff] [blame] | 284 | } |
| 285 | |
| 286 | static inline struct page *rxb_steal_page(struct iwl_rx_cmd_buffer *r) |
| 287 | { |
Johannes Berg | 0c19744 | 2012-03-15 13:26:43 -0700 | [diff] [blame] | 288 | r->_page_stolen = true; |
| 289 | get_page(r->_page); |
| 290 | return r->_page; |
Johannes Berg | 930dfd5 | 2012-03-05 11:24:43 -0800 | [diff] [blame] | 291 | } |
| 292 | |
Emmanuel Grumbach | d13f186 | 2013-01-23 10:59:29 +0200 | [diff] [blame] | 293 | static inline void iwl_free_rxb(struct iwl_rx_cmd_buffer *r) |
| 294 | { |
| 295 | __free_pages(r->_page, r->_rx_page_order); |
| 296 | } |
| 297 | |
Johannes Berg | d663ee7 | 2012-03-10 13:00:07 -0800 | [diff] [blame] | 298 | #define MAX_NO_RECLAIM_CMDS 6 |
| 299 | |
Gregory Greenman | ff110c8 | 2012-05-16 22:54:24 +0200 | [diff] [blame] | 300 | #define IWL_MASK(lo, hi) ((1 << (hi)) | ((1 << (hi)) - (1 << (lo)))) |
| 301 | |
Johannes Berg | 9eae88f | 2012-03-15 13:26:52 -0700 | [diff] [blame] | 302 | /* |
| 303 | * Maximum number of HW queues the transport layer |
| 304 | * currently supports |
| 305 | */ |
| 306 | #define IWL_MAX_HW_QUEUES 32 |
Emmanuel Grumbach | b04db9a | 2012-06-21 11:53:44 +0300 | [diff] [blame] | 307 | #define IWL_MAX_TID_COUNT 8 |
| 308 | #define IWL_FRAME_LIMIT 64 |
Johannes Berg | 9eae88f | 2012-03-15 13:26:52 -0700 | [diff] [blame] | 309 | |
Emmanuel Grumbach | 41c5054 | 2011-07-11 08:51:04 +0300 | [diff] [blame] | 310 | /** |
Johannes Berg | ddaf5a5 | 2013-01-08 11:25:44 +0100 | [diff] [blame] | 311 | * enum iwl_wowlan_status - WoWLAN image/device status |
| 312 | * @IWL_D3_STATUS_ALIVE: firmware is still running after resume |
| 313 | * @IWL_D3_STATUS_RESET: device was reset while suspended |
| 314 | */ |
| 315 | enum iwl_d3_status { |
| 316 | IWL_D3_STATUS_ALIVE, |
| 317 | IWL_D3_STATUS_RESET, |
| 318 | }; |
| 319 | |
| 320 | /** |
Arik Nemtsov | eb7ff77 | 2013-12-01 12:30:38 +0200 | [diff] [blame] | 321 | * enum iwl_trans_status: transport status flags |
| 322 | * @STATUS_SYNC_HCMD_ACTIVE: a SYNC command is being processed |
| 323 | * @STATUS_DEVICE_ENABLED: APM is enabled |
| 324 | * @STATUS_TPOWER_PMI: the device might be asleep (need to wake it up) |
| 325 | * @STATUS_INT_ENABLED: interrupts are enabled |
| 326 | * @STATUS_RFKILL: the HW RFkill switch is in KILL position |
| 327 | * @STATUS_FW_ERROR: the fw is in error state |
| 328 | */ |
| 329 | enum iwl_trans_status { |
| 330 | STATUS_SYNC_HCMD_ACTIVE, |
| 331 | STATUS_DEVICE_ENABLED, |
| 332 | STATUS_TPOWER_PMI, |
| 333 | STATUS_INT_ENABLED, |
| 334 | STATUS_RFKILL, |
| 335 | STATUS_FW_ERROR, |
| 336 | }; |
| 337 | |
| 338 | /** |
Meenakshi Venkataraman | 92d743a | 2012-03-07 09:52:35 -0800 | [diff] [blame] | 339 | * struct iwl_trans_config - transport configuration |
| 340 | * |
| 341 | * @op_mode: pointer to the upper layer. |
Meenakshi Venkataraman | c6f600f | 2012-03-08 11:29:12 -0800 | [diff] [blame] | 342 | * @cmd_queue: the index of the command queue. |
| 343 | * Must be set before start_fw. |
Emmanuel Grumbach | b04db9a | 2012-06-21 11:53:44 +0300 | [diff] [blame] | 344 | * @cmd_fifo: the fifo for host commands |
Johannes Berg | d663ee7 | 2012-03-10 13:00:07 -0800 | [diff] [blame] | 345 | * @no_reclaim_cmds: Some devices erroneously don't set the |
| 346 | * SEQ_RX_FRAME bit on some notifications, this is the |
| 347 | * list of such notifications to filter. Max length is |
| 348 | * %MAX_NO_RECLAIM_CMDS. |
| 349 | * @n_no_reclaim_cmds: # of commands in list |
Johannes Berg | b2cf410 | 2012-04-09 17:46:51 -0700 | [diff] [blame] | 350 | * @rx_buf_size_8k: 8 kB RX buffer size needed for A-MSDUs, |
| 351 | * if unset 4k will be the RX buffer size |
Emmanuel Grumbach | 046db34 | 2012-12-05 15:07:54 +0200 | [diff] [blame] | 352 | * @bc_table_dword: set to true if the BC table expects the byte count to be |
| 353 | * in DWORD (as opposed to bytes) |
Johannes Berg | 7c5ba4a | 2012-04-09 17:46:54 -0700 | [diff] [blame] | 354 | * @queue_watchdog_timeout: time (in ms) after which queues |
| 355 | * are considered stuck and will trigger device restart |
Johannes Berg | d9fb646 | 2012-03-26 08:23:39 -0700 | [diff] [blame] | 356 | * @command_names: array of command names, must be 256 entries |
| 357 | * (one for each command); for debugging only |
Meenakshi Venkataraman | 92d743a | 2012-03-07 09:52:35 -0800 | [diff] [blame] | 358 | */ |
| 359 | struct iwl_trans_config { |
| 360 | struct iwl_op_mode *op_mode; |
Johannes Berg | 9eae88f | 2012-03-15 13:26:52 -0700 | [diff] [blame] | 361 | |
Meenakshi Venkataraman | c6f600f | 2012-03-08 11:29:12 -0800 | [diff] [blame] | 362 | u8 cmd_queue; |
Emmanuel Grumbach | b04db9a | 2012-06-21 11:53:44 +0300 | [diff] [blame] | 363 | u8 cmd_fifo; |
Johannes Berg | d663ee7 | 2012-03-10 13:00:07 -0800 | [diff] [blame] | 364 | const u8 *no_reclaim_cmds; |
Johannes Berg | 84cf0e6 | 2013-10-28 19:29:38 +0100 | [diff] [blame] | 365 | unsigned int n_no_reclaim_cmds; |
Johannes Berg | b2cf410 | 2012-04-09 17:46:51 -0700 | [diff] [blame] | 366 | |
| 367 | bool rx_buf_size_8k; |
Emmanuel Grumbach | 046db34 | 2012-12-05 15:07:54 +0200 | [diff] [blame] | 368 | bool bc_table_dword; |
Johannes Berg | 7c5ba4a | 2012-04-09 17:46:54 -0700 | [diff] [blame] | 369 | unsigned int queue_watchdog_timeout; |
Johannes Berg | d9fb646 | 2012-03-26 08:23:39 -0700 | [diff] [blame] | 370 | const char **command_names; |
Meenakshi Venkataraman | 92d743a | 2012-03-07 09:52:35 -0800 | [diff] [blame] | 371 | }; |
| 372 | |
Emmanuel Grumbach | 87ce05a | 2012-03-26 09:03:18 -0700 | [diff] [blame] | 373 | struct iwl_trans; |
| 374 | |
Meenakshi Venkataraman | 92d743a | 2012-03-07 09:52:35 -0800 | [diff] [blame] | 375 | /** |
Emmanuel Grumbach | 41c5054 | 2011-07-11 08:51:04 +0300 | [diff] [blame] | 376 | * struct iwl_trans_ops - transport specific operations |
Emmanuel Grumbach | 6039618 | 2012-02-06 16:41:58 +0200 | [diff] [blame] | 377 | * |
| 378 | * All the handlers MUST be implemented |
| 379 | * |
Emmanuel Grumbach | 57a1dc8 | 2012-01-08 13:22:16 +0200 | [diff] [blame] | 380 | * @start_hw: starts the HW- from that point on, the HW can send interrupts |
Emmanuel Grumbach | 6039618 | 2012-02-06 16:41:58 +0200 | [diff] [blame] | 381 | * May sleep |
Arik Nemtsov | a408284 | 2013-11-24 19:10:46 +0200 | [diff] [blame] | 382 | * @op_mode_leave: Turn off the HW RF kill indication if on |
Emmanuel Grumbach | 6039618 | 2012-02-06 16:41:58 +0200 | [diff] [blame] | 383 | * May sleep |
Emmanuel Grumbach | cf61429 | 2012-01-08 16:33:58 +0200 | [diff] [blame] | 384 | * @start_fw: allocates and inits all the resources for the transport |
Emmanuel Grumbach | 6039618 | 2012-02-06 16:41:58 +0200 | [diff] [blame] | 385 | * layer. Also kick a fw image. |
| 386 | * May sleep |
Emmanuel Grumbach | adca123 | 2012-10-25 23:08:27 +0200 | [diff] [blame] | 387 | * @fw_alive: called when the fw sends alive notification. If the fw provides |
| 388 | * the SCD base address in SRAM, then provide it here, or 0 otherwise. |
Emmanuel Grumbach | 6039618 | 2012-02-06 16:41:58 +0200 | [diff] [blame] | 389 | * May sleep |
Arik Nemtsov | a408284 | 2013-11-24 19:10:46 +0200 | [diff] [blame] | 390 | * @stop_device: stops the whole device (embedded CPU put to reset) and stops |
| 391 | * the HW. From that point on, the HW will be in low power but will still |
| 392 | * issue interrupt if the HW RF kill is triggered. This callback must do |
| 393 | * the right thing and not crash even if start_hw() was called but not |
| 394 | * start_fw(). May sleep |
Johannes Berg | ddaf5a5 | 2013-01-08 11:25:44 +0100 | [diff] [blame] | 395 | * @d3_suspend: put the device into the correct mode for WoWLAN during |
Johannes Berg | 2dd4f9f | 2012-03-05 11:24:35 -0800 | [diff] [blame] | 396 | * suspend. This is optional, if not implemented WoWLAN will not be |
| 397 | * supported. This callback may sleep. |
Johannes Berg | ddaf5a5 | 2013-01-08 11:25:44 +0100 | [diff] [blame] | 398 | * @d3_resume: resume the device after WoWLAN, enabling the opmode to |
| 399 | * talk to the WoWLAN image to get its status. This is optional, if not |
| 400 | * implemented WoWLAN will not be supported. This callback may sleep. |
Emmanuel Grumbach | f946b52 | 2012-10-25 17:25:52 +0200 | [diff] [blame] | 401 | * @send_cmd:send a host command. Must return -ERFKILL if RFkill is asserted. |
| 402 | * If RFkill is asserted in the middle of a SYNC host command, it must |
| 403 | * return -ERFKILL straight away. |
Emmanuel Grumbach | 6039618 | 2012-02-06 16:41:58 +0200 | [diff] [blame] | 404 | * May sleep only if CMD_SYNC is set |
Emmanuel Grumbach | 41c5054 | 2011-07-11 08:51:04 +0300 | [diff] [blame] | 405 | * @tx: send an skb |
Emmanuel Grumbach | 6039618 | 2012-02-06 16:41:58 +0200 | [diff] [blame] | 406 | * Must be atomic |
Emmanuel Grumbach | a0eaad7 | 2011-08-25 23:11:00 -0700 | [diff] [blame] | 407 | * @reclaim: free packet until ssn. Returns a list of freed packets. |
Emmanuel Grumbach | 6039618 | 2012-02-06 16:41:58 +0200 | [diff] [blame] | 408 | * Must be atomic |
Emmanuel Grumbach | b04db9a | 2012-06-21 11:53:44 +0300 | [diff] [blame] | 409 | * @txq_enable: setup a queue. To setup an AC queue, use the |
| 410 | * iwl_trans_ac_txq_enable wrapper. fw_alive must have been called before |
| 411 | * this one. The op_mode must not configure the HCMD queue. May sleep. |
Emmanuel Grumbach | d0624be | 2012-05-29 13:07:30 +0300 | [diff] [blame] | 412 | * @txq_disable: de-configure a Tx queue to send AMPDUs |
Johannes Berg | b0b4619 | 2012-03-07 09:52:17 -0800 | [diff] [blame] | 413 | * Must be atomic |
Emmanuel Grumbach | 5f178cd | 2011-08-25 23:11:29 -0700 | [diff] [blame] | 414 | * @wait_tx_queue_empty: wait until all tx queues are empty |
Emmanuel Grumbach | 6039618 | 2012-02-06 16:41:58 +0200 | [diff] [blame] | 415 | * May sleep |
Emmanuel Grumbach | 87e5666 | 2011-08-25 23:10:50 -0700 | [diff] [blame] | 416 | * @dbgfs_register: add the dbgfs files under this directory. Files will be |
| 417 | * automatically deleted. |
Emmanuel Grumbach | 0390549 | 2012-01-03 13:48:07 +0200 | [diff] [blame] | 418 | * @write8: write a u8 to a register at offset ofs from the BAR |
| 419 | * @write32: write a u32 to a register at offset ofs from the BAR |
| 420 | * @read32: read a u32 register at offset ofs from the BAR |
Emmanuel Grumbach | 6a06b6c | 2012-12-02 13:07:30 +0200 | [diff] [blame] | 421 | * @read_prph: read a DWORD from a periphery register |
| 422 | * @write_prph: write a DWORD to a periphery register |
Emmanuel Grumbach | 4fd442d | 2012-12-24 14:27:11 +0200 | [diff] [blame] | 423 | * @read_mem: read device's SRAM in DWORD |
Emmanuel Grumbach | 01387ff | 2013-01-09 11:37:59 +0200 | [diff] [blame] | 424 | * @write_mem: write device's SRAM in DWORD. If %buf is %NULL, then the memory |
| 425 | * will be zeroed. |
Meenakshi Venkataraman | c6f600f | 2012-03-08 11:29:12 -0800 | [diff] [blame] | 426 | * @configure: configure parameters required by the transport layer from |
Emmanuel Grumbach | 3dc420b | 2012-03-07 09:52:41 -0800 | [diff] [blame] | 427 | * the op_mode. May be called several times before start_fw, can't be |
| 428 | * called after that. |
Don Fry | 47107e8 | 2012-03-15 13:27:06 -0700 | [diff] [blame] | 429 | * @set_pmi: set the power pmi state |
Lilach Edelstein | e56b04e | 2013-01-16 11:34:49 +0200 | [diff] [blame] | 430 | * @grab_nic_access: wake the NIC to be able to access non-HBUS regs. |
| 431 | * Sleeping is not allowed between grab_nic_access and |
| 432 | * release_nic_access. |
| 433 | * @release_nic_access: let the NIC go to sleep. The "flags" parameter |
| 434 | * must be the same one that was sent before to the grab_nic_access. |
Lilach Edelstein | e139dc4 | 2013-01-13 13:31:10 +0200 | [diff] [blame] | 435 | * @set_bits_mask - set SRAM register according to value and mask. |
Emmanuel Grumbach | 41c5054 | 2011-07-11 08:51:04 +0300 | [diff] [blame] | 436 | */ |
| 437 | struct iwl_trans_ops { |
| 438 | |
Emmanuel Grumbach | 57a1dc8 | 2012-01-08 13:22:16 +0200 | [diff] [blame] | 439 | int (*start_hw)(struct iwl_trans *iwl_trans); |
Arik Nemtsov | a408284 | 2013-11-24 19:10:46 +0200 | [diff] [blame] | 440 | void (*op_mode_leave)(struct iwl_trans *iwl_trans); |
Emmanuel Grumbach | 6ae02f3 | 2012-12-24 11:10:43 +0200 | [diff] [blame] | 441 | int (*start_fw)(struct iwl_trans *trans, const struct fw_img *fw, |
| 442 | bool run_in_rfkill); |
Emmanuel Grumbach | adca123 | 2012-10-25 23:08:27 +0200 | [diff] [blame] | 443 | void (*fw_alive)(struct iwl_trans *trans, u32 scd_addr); |
Emmanuel Grumbach | 6d8f6ee | 2011-08-25 23:11:06 -0700 | [diff] [blame] | 444 | void (*stop_device)(struct iwl_trans *trans); |
Emmanuel Grumbach | 41c5054 | 2011-07-11 08:51:04 +0300 | [diff] [blame] | 445 | |
Johannes Berg | debff61 | 2013-05-14 13:53:45 +0200 | [diff] [blame] | 446 | void (*d3_suspend)(struct iwl_trans *trans, bool test); |
| 447 | int (*d3_resume)(struct iwl_trans *trans, enum iwl_d3_status *status, |
| 448 | bool test); |
Johannes Berg | 2dd4f9f | 2012-03-05 11:24:35 -0800 | [diff] [blame] | 449 | |
Emmanuel Grumbach | 6d8f6ee | 2011-08-25 23:11:06 -0700 | [diff] [blame] | 450 | int (*send_cmd)(struct iwl_trans *trans, struct iwl_host_cmd *cmd); |
Emmanuel Grumbach | 41c5054 | 2011-07-11 08:51:04 +0300 | [diff] [blame] | 451 | |
Emmanuel Grumbach | e13c0c5 | 2011-08-25 23:11:24 -0700 | [diff] [blame] | 452 | int (*tx)(struct iwl_trans *trans, struct sk_buff *skb, |
Johannes Berg | 9eae88f | 2012-03-15 13:26:52 -0700 | [diff] [blame] | 453 | struct iwl_device_cmd *dev_cmd, int queue); |
| 454 | void (*reclaim)(struct iwl_trans *trans, int queue, int ssn, |
| 455 | struct sk_buff_head *skbs); |
Emmanuel Grumbach | 41c5054 | 2011-07-11 08:51:04 +0300 | [diff] [blame] | 456 | |
Emmanuel Grumbach | 4beaf6c | 2012-05-29 11:29:10 +0300 | [diff] [blame] | 457 | void (*txq_enable)(struct iwl_trans *trans, int queue, int fifo, |
| 458 | int sta_id, int tid, int frame_limit, u16 ssn); |
Emmanuel Grumbach | d0624be | 2012-05-29 13:07:30 +0300 | [diff] [blame] | 459 | void (*txq_disable)(struct iwl_trans *trans, int queue); |
Emmanuel Grumbach | 41c5054 | 2011-07-11 08:51:04 +0300 | [diff] [blame] | 460 | |
Emmanuel Grumbach | 87e5666 | 2011-08-25 23:10:50 -0700 | [diff] [blame] | 461 | int (*dbgfs_register)(struct iwl_trans *trans, struct dentry* dir); |
Emmanuel Grumbach | 5f178cd | 2011-08-25 23:11:29 -0700 | [diff] [blame] | 462 | int (*wait_tx_queue_empty)(struct iwl_trans *trans); |
Johannes Berg | 5fdda04 | 2013-08-02 10:51:22 +0200 | [diff] [blame] | 463 | |
Emmanuel Grumbach | 0390549 | 2012-01-03 13:48:07 +0200 | [diff] [blame] | 464 | void (*write8)(struct iwl_trans *trans, u32 ofs, u8 val); |
| 465 | void (*write32)(struct iwl_trans *trans, u32 ofs, u32 val); |
| 466 | u32 (*read32)(struct iwl_trans *trans, u32 ofs); |
Emmanuel Grumbach | 6a06b6c | 2012-12-02 13:07:30 +0200 | [diff] [blame] | 467 | u32 (*read_prph)(struct iwl_trans *trans, u32 ofs); |
| 468 | void (*write_prph)(struct iwl_trans *trans, u32 ofs, u32 val); |
Emmanuel Grumbach | 4fd442d | 2012-12-24 14:27:11 +0200 | [diff] [blame] | 469 | int (*read_mem)(struct iwl_trans *trans, u32 addr, |
| 470 | void *buf, int dwords); |
| 471 | int (*write_mem)(struct iwl_trans *trans, u32 addr, |
Emmanuel Grumbach | bf0fd5d | 2013-05-13 17:05:27 +0300 | [diff] [blame] | 472 | const void *buf, int dwords); |
Meenakshi Venkataraman | c6f600f | 2012-03-08 11:29:12 -0800 | [diff] [blame] | 473 | void (*configure)(struct iwl_trans *trans, |
| 474 | const struct iwl_trans_config *trans_cfg); |
Don Fry | 47107e8 | 2012-03-15 13:27:06 -0700 | [diff] [blame] | 475 | void (*set_pmi)(struct iwl_trans *trans, bool state); |
Lilach Edelstein | e56b04e | 2013-01-16 11:34:49 +0200 | [diff] [blame] | 476 | bool (*grab_nic_access)(struct iwl_trans *trans, bool silent, |
| 477 | unsigned long *flags); |
| 478 | void (*release_nic_access)(struct iwl_trans *trans, |
| 479 | unsigned long *flags); |
Lilach Edelstein | e139dc4 | 2013-01-13 13:31:10 +0200 | [diff] [blame] | 480 | void (*set_bits_mask)(struct iwl_trans *trans, u32 reg, u32 mask, |
| 481 | u32 value); |
Emmanuel Grumbach | 41c5054 | 2011-07-11 08:51:04 +0300 | [diff] [blame] | 482 | }; |
| 483 | |
Emmanuel Grumbach | 6fbfae8 | 2011-08-25 23:10:49 -0700 | [diff] [blame] | 484 | /** |
Emmanuel Grumbach | 69655eb | 2012-02-06 14:30:54 +0200 | [diff] [blame] | 485 | * enum iwl_trans_state - state of the transport layer |
| 486 | * |
| 487 | * @IWL_TRANS_NO_FW: no fw has sent an alive response |
| 488 | * @IWL_TRANS_FW_ALIVE: a fw has sent an alive response |
| 489 | */ |
| 490 | enum iwl_trans_state { |
| 491 | IWL_TRANS_NO_FW = 0, |
| 492 | IWL_TRANS_FW_ALIVE = 1, |
| 493 | }; |
| 494 | |
| 495 | /** |
Emmanuel Grumbach | 6fbfae8 | 2011-08-25 23:10:49 -0700 | [diff] [blame] | 496 | * struct iwl_trans - transport common data |
Emmanuel Grumbach | 6039618 | 2012-02-06 16:41:58 +0200 | [diff] [blame] | 497 | * |
Emmanuel Grumbach | 6fbfae8 | 2011-08-25 23:10:49 -0700 | [diff] [blame] | 498 | * @ops - pointer to iwl_trans_ops |
Emmanuel Grumbach | ed277c9 | 2012-02-09 16:08:15 +0200 | [diff] [blame] | 499 | * @op_mode - pointer to the op_mode |
Emmanuel Grumbach | 035f7ff | 2012-03-26 08:57:01 -0700 | [diff] [blame] | 500 | * @cfg - pointer to the configuration |
Arik Nemtsov | eb7ff77 | 2013-12-01 12:30:38 +0200 | [diff] [blame] | 501 | * @status: a bit-mask of transport status flags |
Emmanuel Grumbach | a42a184 | 2012-02-02 14:33:08 -0800 | [diff] [blame] | 502 | * @dev - pointer to struct device * that represents the device |
Emmanuel Grumbach | 99673ee | 2012-01-08 21:19:45 +0200 | [diff] [blame] | 503 | * @hw_id: a u32 with the ID of the device / subdevice. |
Emmanuel Grumbach | 6039618 | 2012-02-06 16:41:58 +0200 | [diff] [blame] | 504 | * Set during transport allocation. |
Emmanuel Grumbach | 9ca8596 | 2012-01-08 21:19:45 +0200 | [diff] [blame] | 505 | * @hw_id_str: a string with info about HW ID. Set during transport allocation. |
Emmanuel Grumbach | f6d0e9b | 2012-01-08 21:19:45 +0200 | [diff] [blame] | 506 | * @pm_support: set to true in start_hw if link pm is supported |
Emmanuel Grumbach | 59c647b | 2012-05-24 19:24:34 +0300 | [diff] [blame] | 507 | * @dev_cmd_pool: pool for Tx cmd allocation - for internal use only. |
| 508 | * The user should use iwl_trans_{alloc,free}_tx_cmd. |
| 509 | * @dev_cmd_headroom: room needed for the transport's private use before the |
| 510 | * device_cmd for Tx - for internal use only |
| 511 | * The user should use iwl_trans_{alloc,free}_tx_cmd. |
Johannes Berg | f042c2e | 2012-09-05 22:34:44 +0200 | [diff] [blame] | 512 | * @rx_mpdu_cmd: MPDU RX command ID, must be assigned by opmode before |
| 513 | * starting the firmware, used for tracing |
| 514 | * @rx_mpdu_cmd_hdr_size: used for tracing, amount of data before the |
| 515 | * start of the 802.11 header in the @rx_mpdu_cmd |
Emmanuel Grumbach | 6fbfae8 | 2011-08-25 23:10:49 -0700 | [diff] [blame] | 516 | */ |
Emmanuel Grumbach | 41c5054 | 2011-07-11 08:51:04 +0300 | [diff] [blame] | 517 | struct iwl_trans { |
| 518 | const struct iwl_trans_ops *ops; |
Emmanuel Grumbach | ed277c9 | 2012-02-09 16:08:15 +0200 | [diff] [blame] | 519 | struct iwl_op_mode *op_mode; |
Emmanuel Grumbach | 035f7ff | 2012-03-26 08:57:01 -0700 | [diff] [blame] | 520 | const struct iwl_cfg *cfg; |
Emmanuel Grumbach | 69655eb | 2012-02-06 14:30:54 +0200 | [diff] [blame] | 521 | enum iwl_trans_state state; |
Arik Nemtsov | eb7ff77 | 2013-12-01 12:30:38 +0200 | [diff] [blame] | 522 | unsigned long status; |
Emmanuel Grumbach | e6bb4c9 | 2011-08-25 23:10:48 -0700 | [diff] [blame] | 523 | |
Emmanuel Grumbach | a42a184 | 2012-02-02 14:33:08 -0800 | [diff] [blame] | 524 | struct device *dev; |
Emmanuel Grumbach | 08079a49 | 2012-01-09 16:23:00 +0200 | [diff] [blame] | 525 | u32 hw_rev; |
Emmanuel Grumbach | 99673ee | 2012-01-08 21:19:45 +0200 | [diff] [blame] | 526 | u32 hw_id; |
Emmanuel Grumbach | 9ca8596 | 2012-01-08 21:19:45 +0200 | [diff] [blame] | 527 | char hw_id_str[52]; |
Emmanuel Grumbach | a42a184 | 2012-02-02 14:33:08 -0800 | [diff] [blame] | 528 | |
Johannes Berg | f042c2e | 2012-09-05 22:34:44 +0200 | [diff] [blame] | 529 | u8 rx_mpdu_cmd, rx_mpdu_cmd_hdr_size; |
| 530 | |
Emmanuel Grumbach | f6d0e9b | 2012-01-08 21:19:45 +0200 | [diff] [blame] | 531 | bool pm_support; |
Don Fry | 97b52cf | 2011-11-10 06:55:27 -0800 | [diff] [blame] | 532 | |
Emmanuel Grumbach | 59c647b | 2012-05-24 19:24:34 +0300 | [diff] [blame] | 533 | /* The following fields are internal only */ |
| 534 | struct kmem_cache *dev_cmd_pool; |
| 535 | size_t dev_cmd_headroom; |
Johannes Berg | 3ec4588 | 2012-07-12 13:56:28 +0200 | [diff] [blame] | 536 | char dev_cmd_pool_name[50]; |
Emmanuel Grumbach | 59c647b | 2012-05-24 19:24:34 +0300 | [diff] [blame] | 537 | |
Meenakshi Venkataraman | 9da987a | 2012-07-16 18:43:56 -0700 | [diff] [blame] | 538 | struct dentry *dbgfs_dir; |
| 539 | |
Johannes Berg | 2bfb509 | 2012-12-27 21:43:48 +0100 | [diff] [blame] | 540 | #ifdef CONFIG_LOCKDEP |
| 541 | struct lockdep_map sync_cmd_lockdep_map; |
| 542 | #endif |
| 543 | |
Emmanuel Grumbach | e6bb4c9 | 2011-08-25 23:10:48 -0700 | [diff] [blame] | 544 | /* pointer to trans specific struct */ |
| 545 | /*Ensure that this pointer will always be aligned to sizeof pointer */ |
Emmanuel Grumbach | cbe6ab4 | 2012-02-15 09:25:06 +0200 | [diff] [blame] | 546 | char trans_specific[0] __aligned(sizeof(void *)); |
Emmanuel Grumbach | 41c5054 | 2011-07-11 08:51:04 +0300 | [diff] [blame] | 547 | }; |
| 548 | |
Emmanuel Grumbach | ed277c9 | 2012-02-09 16:08:15 +0200 | [diff] [blame] | 549 | static inline void iwl_trans_configure(struct iwl_trans *trans, |
Meenakshi Venkataraman | 92d743a | 2012-03-07 09:52:35 -0800 | [diff] [blame] | 550 | const struct iwl_trans_config *trans_cfg) |
Emmanuel Grumbach | ed277c9 | 2012-02-09 16:08:15 +0200 | [diff] [blame] | 551 | { |
Meenakshi Venkataraman | 92d743a | 2012-03-07 09:52:35 -0800 | [diff] [blame] | 552 | trans->op_mode = trans_cfg->op_mode; |
Meenakshi Venkataraman | c6f600f | 2012-03-08 11:29:12 -0800 | [diff] [blame] | 553 | |
| 554 | trans->ops->configure(trans, trans_cfg); |
Emmanuel Grumbach | ed277c9 | 2012-02-09 16:08:15 +0200 | [diff] [blame] | 555 | } |
| 556 | |
Emmanuel Grumbach | 57a1dc8 | 2012-01-08 13:22:16 +0200 | [diff] [blame] | 557 | static inline int iwl_trans_start_hw(struct iwl_trans *trans) |
Emmanuel Grumbach | bdfbf09 | 2011-07-08 08:46:16 -0700 | [diff] [blame] | 558 | { |
Emmanuel Grumbach | 6039618 | 2012-02-06 16:41:58 +0200 | [diff] [blame] | 559 | might_sleep(); |
| 560 | |
Emmanuel Grumbach | 57a1dc8 | 2012-01-08 13:22:16 +0200 | [diff] [blame] | 561 | return trans->ops->start_hw(trans); |
Emmanuel Grumbach | bdfbf09 | 2011-07-08 08:46:16 -0700 | [diff] [blame] | 562 | } |
| 563 | |
Arik Nemtsov | a408284 | 2013-11-24 19:10:46 +0200 | [diff] [blame] | 564 | static inline void iwl_trans_op_mode_leave(struct iwl_trans *trans) |
Emmanuel Grumbach | cc56feb | 2012-01-08 13:37:59 +0200 | [diff] [blame] | 565 | { |
Emmanuel Grumbach | 6039618 | 2012-02-06 16:41:58 +0200 | [diff] [blame] | 566 | might_sleep(); |
| 567 | |
Arik Nemtsov | a408284 | 2013-11-24 19:10:46 +0200 | [diff] [blame] | 568 | if (trans->ops->op_mode_leave) |
| 569 | trans->ops->op_mode_leave(trans); |
Emmanuel Grumbach | 69655eb | 2012-02-06 14:30:54 +0200 | [diff] [blame] | 570 | |
Arik Nemtsov | a408284 | 2013-11-24 19:10:46 +0200 | [diff] [blame] | 571 | trans->op_mode = NULL; |
Emmanuel Grumbach | b4991f3 | 2012-11-27 21:36:54 +0200 | [diff] [blame] | 572 | |
Emmanuel Grumbach | 69655eb | 2012-02-06 14:30:54 +0200 | [diff] [blame] | 573 | trans->state = IWL_TRANS_NO_FW; |
Emmanuel Grumbach | cc56feb | 2012-01-08 13:37:59 +0200 | [diff] [blame] | 574 | } |
| 575 | |
Emmanuel Grumbach | adca123 | 2012-10-25 23:08:27 +0200 | [diff] [blame] | 576 | static inline void iwl_trans_fw_alive(struct iwl_trans *trans, u32 scd_addr) |
Emmanuel Grumbach | ed6a380 | 2012-01-02 16:10:08 +0200 | [diff] [blame] | 577 | { |
Emmanuel Grumbach | 6039618 | 2012-02-06 16:41:58 +0200 | [diff] [blame] | 578 | might_sleep(); |
| 579 | |
Emmanuel Grumbach | 69655eb | 2012-02-06 14:30:54 +0200 | [diff] [blame] | 580 | trans->state = IWL_TRANS_FW_ALIVE; |
Emmanuel Grumbach | b04db9a | 2012-06-21 11:53:44 +0300 | [diff] [blame] | 581 | |
Emmanuel Grumbach | adca123 | 2012-10-25 23:08:27 +0200 | [diff] [blame] | 582 | trans->ops->fw_alive(trans, scd_addr); |
Emmanuel Grumbach | ed6a380 | 2012-01-02 16:10:08 +0200 | [diff] [blame] | 583 | } |
| 584 | |
Johannes Berg | 0692fe4 | 2012-03-06 13:30:37 -0800 | [diff] [blame] | 585 | static inline int iwl_trans_start_fw(struct iwl_trans *trans, |
Emmanuel Grumbach | 6ae02f3 | 2012-12-24 11:10:43 +0200 | [diff] [blame] | 586 | const struct fw_img *fw, |
| 587 | bool run_in_rfkill) |
Emmanuel Grumbach | 0286cee | 2011-07-10 15:39:57 +0300 | [diff] [blame] | 588 | { |
Emmanuel Grumbach | cf61429 | 2012-01-08 16:33:58 +0200 | [diff] [blame] | 589 | might_sleep(); |
| 590 | |
Johannes Berg | f042c2e | 2012-09-05 22:34:44 +0200 | [diff] [blame] | 591 | WARN_ON_ONCE(!trans->rx_mpdu_cmd); |
| 592 | |
Arik Nemtsov | efbf6e3 | 2013-12-04 17:08:47 +0200 | [diff] [blame] | 593 | clear_bit(STATUS_FW_ERROR, &trans->status); |
Emmanuel Grumbach | 6ae02f3 | 2012-12-24 11:10:43 +0200 | [diff] [blame] | 594 | return trans->ops->start_fw(trans, fw, run_in_rfkill); |
Emmanuel Grumbach | 0286cee | 2011-07-10 15:39:57 +0300 | [diff] [blame] | 595 | } |
| 596 | |
Emmanuel Grumbach | e6bb4c9 | 2011-08-25 23:10:48 -0700 | [diff] [blame] | 597 | static inline void iwl_trans_stop_device(struct iwl_trans *trans) |
Emmanuel Grumbach | b3c2ce1 | 2011-07-07 15:50:10 +0300 | [diff] [blame] | 598 | { |
Emmanuel Grumbach | 6039618 | 2012-02-06 16:41:58 +0200 | [diff] [blame] | 599 | might_sleep(); |
| 600 | |
Emmanuel Grumbach | 6d8f6ee | 2011-08-25 23:11:06 -0700 | [diff] [blame] | 601 | trans->ops->stop_device(trans); |
Emmanuel Grumbach | 69655eb | 2012-02-06 14:30:54 +0200 | [diff] [blame] | 602 | |
| 603 | trans->state = IWL_TRANS_NO_FW; |
Emmanuel Grumbach | b3c2ce1 | 2011-07-07 15:50:10 +0300 | [diff] [blame] | 604 | } |
| 605 | |
Johannes Berg | debff61 | 2013-05-14 13:53:45 +0200 | [diff] [blame] | 606 | static inline void iwl_trans_d3_suspend(struct iwl_trans *trans, bool test) |
Johannes Berg | 2dd4f9f | 2012-03-05 11:24:35 -0800 | [diff] [blame] | 607 | { |
| 608 | might_sleep(); |
Johannes Berg | debff61 | 2013-05-14 13:53:45 +0200 | [diff] [blame] | 609 | trans->ops->d3_suspend(trans, test); |
Johannes Berg | ddaf5a5 | 2013-01-08 11:25:44 +0100 | [diff] [blame] | 610 | } |
| 611 | |
| 612 | static inline int iwl_trans_d3_resume(struct iwl_trans *trans, |
Johannes Berg | debff61 | 2013-05-14 13:53:45 +0200 | [diff] [blame] | 613 | enum iwl_d3_status *status, |
| 614 | bool test) |
Johannes Berg | ddaf5a5 | 2013-01-08 11:25:44 +0100 | [diff] [blame] | 615 | { |
| 616 | might_sleep(); |
Johannes Berg | debff61 | 2013-05-14 13:53:45 +0200 | [diff] [blame] | 617 | return trans->ops->d3_resume(trans, status, test); |
Johannes Berg | 2dd4f9f | 2012-03-05 11:24:35 -0800 | [diff] [blame] | 618 | } |
| 619 | |
Emmanuel Grumbach | e6bb4c9 | 2011-08-25 23:10:48 -0700 | [diff] [blame] | 620 | static inline int iwl_trans_send_cmd(struct iwl_trans *trans, |
Johannes Berg | 2bfb509 | 2012-12-27 21:43:48 +0100 | [diff] [blame] | 621 | struct iwl_host_cmd *cmd) |
Emmanuel Grumbach | bdfbf09 | 2011-07-08 08:46:16 -0700 | [diff] [blame] | 622 | { |
Johannes Berg | 2bfb509 | 2012-12-27 21:43:48 +0100 | [diff] [blame] | 623 | int ret; |
| 624 | |
Arik Nemtsov | 3fc0795 | 2013-12-01 13:02:18 +0200 | [diff] [blame] | 625 | if (unlikely(test_bit(STATUS_FW_ERROR, &trans->status))) |
| 626 | return -EIO; |
| 627 | |
Stanislaw Gruszka | f39a52b | 2013-10-09 15:24:30 +0200 | [diff] [blame] | 628 | if (unlikely(trans->state != IWL_TRANS_FW_ALIVE)) { |
Emmanuel Grumbach | 8ca9599 | 2013-09-15 11:37:17 +0300 | [diff] [blame] | 629 | IWL_ERR(trans, "%s bad state = %d", __func__, trans->state); |
| 630 | return -EIO; |
| 631 | } |
Emmanuel Grumbach | 69655eb | 2012-02-06 14:30:54 +0200 | [diff] [blame] | 632 | |
Johannes Berg | 2bfb509 | 2012-12-27 21:43:48 +0100 | [diff] [blame] | 633 | if (!(cmd->flags & CMD_ASYNC)) |
| 634 | lock_map_acquire_read(&trans->sync_cmd_lockdep_map); |
| 635 | |
| 636 | ret = trans->ops->send_cmd(trans, cmd); |
| 637 | |
| 638 | if (!(cmd->flags & CMD_ASYNC)) |
| 639 | lock_map_release(&trans->sync_cmd_lockdep_map); |
| 640 | |
| 641 | return ret; |
Emmanuel Grumbach | bdfbf09 | 2011-07-08 08:46:16 -0700 | [diff] [blame] | 642 | } |
| 643 | |
Emmanuel Grumbach | 59c647b | 2012-05-24 19:24:34 +0300 | [diff] [blame] | 644 | static inline struct iwl_device_cmd * |
| 645 | iwl_trans_alloc_tx_cmd(struct iwl_trans *trans) |
| 646 | { |
| 647 | u8 *dev_cmd_ptr = kmem_cache_alloc(trans->dev_cmd_pool, GFP_ATOMIC); |
| 648 | |
| 649 | if (unlikely(dev_cmd_ptr == NULL)) |
| 650 | return NULL; |
| 651 | |
| 652 | return (struct iwl_device_cmd *) |
| 653 | (dev_cmd_ptr + trans->dev_cmd_headroom); |
| 654 | } |
| 655 | |
| 656 | static inline void iwl_trans_free_tx_cmd(struct iwl_trans *trans, |
| 657 | struct iwl_device_cmd *dev_cmd) |
| 658 | { |
| 659 | u8 *dev_cmd_ptr = (u8 *)dev_cmd - trans->dev_cmd_headroom; |
| 660 | |
| 661 | kmem_cache_free(trans->dev_cmd_pool, dev_cmd_ptr); |
| 662 | } |
| 663 | |
Emmanuel Grumbach | e6bb4c9 | 2011-08-25 23:10:48 -0700 | [diff] [blame] | 664 | static inline int iwl_trans_tx(struct iwl_trans *trans, struct sk_buff *skb, |
Johannes Berg | 9eae88f | 2012-03-15 13:26:52 -0700 | [diff] [blame] | 665 | struct iwl_device_cmd *dev_cmd, int queue) |
Emmanuel Grumbach | a0eaad7 | 2011-08-25 23:11:00 -0700 | [diff] [blame] | 666 | { |
Arik Nemtsov | 3fc0795 | 2013-12-01 13:02:18 +0200 | [diff] [blame] | 667 | if (unlikely(test_bit(STATUS_FW_ERROR, &trans->status))) |
| 668 | return -EIO; |
| 669 | |
Stanislaw Gruszka | f39a52b | 2013-10-09 15:24:30 +0200 | [diff] [blame] | 670 | if (unlikely(trans->state != IWL_TRANS_FW_ALIVE)) |
| 671 | IWL_ERR(trans, "%s bad state = %d", __func__, trans->state); |
Emmanuel Grumbach | 69655eb | 2012-02-06 14:30:54 +0200 | [diff] [blame] | 672 | |
Johannes Berg | 9eae88f | 2012-03-15 13:26:52 -0700 | [diff] [blame] | 673 | return trans->ops->tx(trans, skb, dev_cmd, queue); |
Emmanuel Grumbach | a0eaad7 | 2011-08-25 23:11:00 -0700 | [diff] [blame] | 674 | } |
| 675 | |
Johannes Berg | 9eae88f | 2012-03-15 13:26:52 -0700 | [diff] [blame] | 676 | static inline void iwl_trans_reclaim(struct iwl_trans *trans, int queue, |
| 677 | int ssn, struct sk_buff_head *skbs) |
Emmanuel Grumbach | 48d42c4 | 2011-07-10 10:47:01 +0300 | [diff] [blame] | 678 | { |
Stanislaw Gruszka | f39a52b | 2013-10-09 15:24:30 +0200 | [diff] [blame] | 679 | if (unlikely(trans->state != IWL_TRANS_FW_ALIVE)) |
| 680 | IWL_ERR(trans, "%s bad state = %d", __func__, trans->state); |
Emmanuel Grumbach | 69655eb | 2012-02-06 14:30:54 +0200 | [diff] [blame] | 681 | |
Johannes Berg | 9eae88f | 2012-03-15 13:26:52 -0700 | [diff] [blame] | 682 | trans->ops->reclaim(trans, queue, ssn, skbs); |
Emmanuel Grumbach | 48d42c4 | 2011-07-10 10:47:01 +0300 | [diff] [blame] | 683 | } |
| 684 | |
Emmanuel Grumbach | d0624be | 2012-05-29 13:07:30 +0300 | [diff] [blame] | 685 | static inline void iwl_trans_txq_disable(struct iwl_trans *trans, int queue) |
Emmanuel Grumbach | 288712a | 2011-08-25 23:11:25 -0700 | [diff] [blame] | 686 | { |
Stanislaw Gruszka | f39a52b | 2013-10-09 15:24:30 +0200 | [diff] [blame] | 687 | if (unlikely(trans->state != IWL_TRANS_FW_ALIVE)) |
| 688 | IWL_ERR(trans, "%s bad state = %d", __func__, trans->state); |
Emmanuel Grumbach | 69655eb | 2012-02-06 14:30:54 +0200 | [diff] [blame] | 689 | |
Emmanuel Grumbach | d0624be | 2012-05-29 13:07:30 +0300 | [diff] [blame] | 690 | trans->ops->txq_disable(trans, queue); |
Emmanuel Grumbach | 288712a | 2011-08-25 23:11:25 -0700 | [diff] [blame] | 691 | } |
| 692 | |
Emmanuel Grumbach | 4beaf6c | 2012-05-29 11:29:10 +0300 | [diff] [blame] | 693 | static inline void iwl_trans_txq_enable(struct iwl_trans *trans, int queue, |
| 694 | int fifo, int sta_id, int tid, |
| 695 | int frame_limit, u16 ssn) |
Emmanuel Grumbach | 48d42c4 | 2011-07-10 10:47:01 +0300 | [diff] [blame] | 696 | { |
Emmanuel Grumbach | 6039618 | 2012-02-06 16:41:58 +0200 | [diff] [blame] | 697 | might_sleep(); |
| 698 | |
Stanislaw Gruszka | f39a52b | 2013-10-09 15:24:30 +0200 | [diff] [blame] | 699 | if (unlikely((trans->state != IWL_TRANS_FW_ALIVE))) |
| 700 | IWL_ERR(trans, "%s bad state = %d", __func__, trans->state); |
Emmanuel Grumbach | 69655eb | 2012-02-06 14:30:54 +0200 | [diff] [blame] | 701 | |
Emmanuel Grumbach | 4beaf6c | 2012-05-29 11:29:10 +0300 | [diff] [blame] | 702 | trans->ops->txq_enable(trans, queue, fifo, sta_id, tid, |
Johannes Berg | 9eae88f | 2012-03-15 13:26:52 -0700 | [diff] [blame] | 703 | frame_limit, ssn); |
Emmanuel Grumbach | 48d42c4 | 2011-07-10 10:47:01 +0300 | [diff] [blame] | 704 | } |
| 705 | |
Emmanuel Grumbach | b04db9a | 2012-06-21 11:53:44 +0300 | [diff] [blame] | 706 | static inline void iwl_trans_ac_txq_enable(struct iwl_trans *trans, int queue, |
| 707 | int fifo) |
| 708 | { |
Emmanuel Grumbach | 881acd8 | 2013-03-19 16:16:00 +0200 | [diff] [blame] | 709 | iwl_trans_txq_enable(trans, queue, fifo, -1, |
Emmanuel Grumbach | b04db9a | 2012-06-21 11:53:44 +0300 | [diff] [blame] | 710 | IWL_MAX_TID_COUNT, IWL_FRAME_LIMIT, 0); |
| 711 | } |
| 712 | |
Emmanuel Grumbach | 5f178cd | 2011-08-25 23:11:29 -0700 | [diff] [blame] | 713 | static inline int iwl_trans_wait_tx_queue_empty(struct iwl_trans *trans) |
| 714 | { |
Stanislaw Gruszka | f39a52b | 2013-10-09 15:24:30 +0200 | [diff] [blame] | 715 | if (unlikely(trans->state != IWL_TRANS_FW_ALIVE)) |
| 716 | IWL_ERR(trans, "%s bad state = %d", __func__, trans->state); |
Emmanuel Grumbach | 69655eb | 2012-02-06 14:30:54 +0200 | [diff] [blame] | 717 | |
Emmanuel Grumbach | 5f178cd | 2011-08-25 23:11:29 -0700 | [diff] [blame] | 718 | return trans->ops->wait_tx_queue_empty(trans); |
| 719 | } |
| 720 | |
Emmanuel Grumbach | 87e5666 | 2011-08-25 23:10:50 -0700 | [diff] [blame] | 721 | static inline int iwl_trans_dbgfs_register(struct iwl_trans *trans, |
Emmanuel Grumbach | 4fd442d | 2012-12-24 14:27:11 +0200 | [diff] [blame] | 722 | struct dentry *dir) |
Emmanuel Grumbach | 87e5666 | 2011-08-25 23:10:50 -0700 | [diff] [blame] | 723 | { |
| 724 | return trans->ops->dbgfs_register(trans, dir); |
| 725 | } |
| 726 | |
Emmanuel Grumbach | 0390549 | 2012-01-03 13:48:07 +0200 | [diff] [blame] | 727 | static inline void iwl_trans_write8(struct iwl_trans *trans, u32 ofs, u8 val) |
| 728 | { |
| 729 | trans->ops->write8(trans, ofs, val); |
| 730 | } |
| 731 | |
| 732 | static inline void iwl_trans_write32(struct iwl_trans *trans, u32 ofs, u32 val) |
| 733 | { |
| 734 | trans->ops->write32(trans, ofs, val); |
| 735 | } |
| 736 | |
| 737 | static inline u32 iwl_trans_read32(struct iwl_trans *trans, u32 ofs) |
| 738 | { |
| 739 | return trans->ops->read32(trans, ofs); |
| 740 | } |
| 741 | |
Emmanuel Grumbach | 6a06b6c | 2012-12-02 13:07:30 +0200 | [diff] [blame] | 742 | static inline u32 iwl_trans_read_prph(struct iwl_trans *trans, u32 ofs) |
| 743 | { |
| 744 | return trans->ops->read_prph(trans, ofs); |
| 745 | } |
| 746 | |
| 747 | static inline void iwl_trans_write_prph(struct iwl_trans *trans, u32 ofs, |
| 748 | u32 val) |
| 749 | { |
| 750 | return trans->ops->write_prph(trans, ofs, val); |
| 751 | } |
| 752 | |
Emmanuel Grumbach | 4fd442d | 2012-12-24 14:27:11 +0200 | [diff] [blame] | 753 | static inline int iwl_trans_read_mem(struct iwl_trans *trans, u32 addr, |
| 754 | void *buf, int dwords) |
| 755 | { |
| 756 | return trans->ops->read_mem(trans, addr, buf, dwords); |
| 757 | } |
| 758 | |
| 759 | #define iwl_trans_read_mem_bytes(trans, addr, buf, bufsize) \ |
| 760 | do { \ |
| 761 | if (__builtin_constant_p(bufsize)) \ |
| 762 | BUILD_BUG_ON((bufsize) % sizeof(u32)); \ |
| 763 | iwl_trans_read_mem(trans, addr, buf, (bufsize) / sizeof(u32));\ |
| 764 | } while (0) |
| 765 | |
| 766 | static inline u32 iwl_trans_read_mem32(struct iwl_trans *trans, u32 addr) |
| 767 | { |
| 768 | u32 value; |
| 769 | |
| 770 | if (WARN_ON(iwl_trans_read_mem(trans, addr, &value, 1))) |
| 771 | return 0xa5a5a5a5; |
| 772 | |
| 773 | return value; |
| 774 | } |
| 775 | |
| 776 | static inline int iwl_trans_write_mem(struct iwl_trans *trans, u32 addr, |
Emmanuel Grumbach | bf0fd5d | 2013-05-13 17:05:27 +0300 | [diff] [blame] | 777 | const void *buf, int dwords) |
Emmanuel Grumbach | 4fd442d | 2012-12-24 14:27:11 +0200 | [diff] [blame] | 778 | { |
| 779 | return trans->ops->write_mem(trans, addr, buf, dwords); |
| 780 | } |
| 781 | |
| 782 | static inline u32 iwl_trans_write_mem32(struct iwl_trans *trans, u32 addr, |
| 783 | u32 val) |
| 784 | { |
| 785 | return iwl_trans_write_mem(trans, addr, &val, 1); |
| 786 | } |
| 787 | |
Don Fry | 47107e8 | 2012-03-15 13:27:06 -0700 | [diff] [blame] | 788 | static inline void iwl_trans_set_pmi(struct iwl_trans *trans, bool state) |
| 789 | { |
Arik Nemtsov | 128cb89 | 2013-12-05 18:31:45 +0200 | [diff] [blame] | 790 | if (trans->ops->set_pmi) |
| 791 | trans->ops->set_pmi(trans, state); |
Don Fry | 47107e8 | 2012-03-15 13:27:06 -0700 | [diff] [blame] | 792 | } |
| 793 | |
Lilach Edelstein | e139dc4 | 2013-01-13 13:31:10 +0200 | [diff] [blame] | 794 | static inline void |
| 795 | iwl_trans_set_bits_mask(struct iwl_trans *trans, u32 reg, u32 mask, u32 value) |
| 796 | { |
| 797 | trans->ops->set_bits_mask(trans, reg, mask, value); |
| 798 | } |
| 799 | |
Lilach Edelstein | e56b04e | 2013-01-16 11:34:49 +0200 | [diff] [blame] | 800 | #define iwl_trans_grab_nic_access(trans, silent, flags) \ |
Emmanuel Grumbach | abae238 | 2012-12-31 13:46:42 +0200 | [diff] [blame] | 801 | __cond_lock(nic_access, \ |
Lilach Edelstein | e56b04e | 2013-01-16 11:34:49 +0200 | [diff] [blame] | 802 | likely((trans)->ops->grab_nic_access(trans, silent, flags))) |
Emmanuel Grumbach | 7a65d17 | 2012-12-24 15:01:24 +0200 | [diff] [blame] | 803 | |
Emmanuel Grumbach | abae238 | 2012-12-31 13:46:42 +0200 | [diff] [blame] | 804 | static inline void __releases(nic_access) |
Lilach Edelstein | e56b04e | 2013-01-16 11:34:49 +0200 | [diff] [blame] | 805 | iwl_trans_release_nic_access(struct iwl_trans *trans, unsigned long *flags) |
Emmanuel Grumbach | 7a65d17 | 2012-12-24 15:01:24 +0200 | [diff] [blame] | 806 | { |
Lilach Edelstein | e56b04e | 2013-01-16 11:34:49 +0200 | [diff] [blame] | 807 | trans->ops->release_nic_access(trans, flags); |
Emmanuel Grumbach | abae238 | 2012-12-31 13:46:42 +0200 | [diff] [blame] | 808 | __release(nic_access); |
Emmanuel Grumbach | 7a65d17 | 2012-12-24 15:01:24 +0200 | [diff] [blame] | 809 | } |
| 810 | |
Arik Nemtsov | 2a988e9 | 2013-12-01 13:50:40 +0200 | [diff] [blame] | 811 | static inline void iwl_trans_fw_error(struct iwl_trans *trans) |
| 812 | { |
| 813 | if (WARN_ON_ONCE(!trans->op_mode)) |
| 814 | return; |
| 815 | |
| 816 | /* prevent double restarts due to the same erroneous FW */ |
| 817 | if (!test_and_set_bit(STATUS_FW_ERROR, &trans->status)) |
| 818 | iwl_op_mode_nic_error(trans->op_mode); |
| 819 | } |
| 820 | |
Emmanuel Grumbach | e6bb4c9 | 2011-08-25 23:10:48 -0700 | [diff] [blame] | 821 | /***************************************************** |
Johannes Berg | d1ff525 | 2012-04-12 06:24:30 -0700 | [diff] [blame] | 822 | * driver (transport) register/unregister functions |
Emmanuel Grumbach | b52e7ea | 2012-02-02 14:16:59 -0800 | [diff] [blame] | 823 | ******************************************************/ |
Emmanuel Grumbach | 36a7922 | 2012-02-27 13:53:32 -0800 | [diff] [blame] | 824 | int __must_check iwl_pci_register_driver(void); |
| 825 | void iwl_pci_unregister_driver(void); |
Emmanuel Grumbach | b52e7ea | 2012-02-02 14:16:59 -0800 | [diff] [blame] | 826 | |
Johannes Berg | 2bfb509 | 2012-12-27 21:43:48 +0100 | [diff] [blame] | 827 | static inline void trans_lockdep_init(struct iwl_trans *trans) |
| 828 | { |
| 829 | #ifdef CONFIG_LOCKDEP |
| 830 | static struct lock_class_key __key; |
| 831 | |
| 832 | lockdep_init_map(&trans->sync_cmd_lockdep_map, "sync_cmd_lockdep_map", |
| 833 | &__key, 0); |
| 834 | #endif |
| 835 | } |
| 836 | |
Emmanuel Grumbach | 41c5054 | 2011-07-11 08:51:04 +0300 | [diff] [blame] | 837 | #endif /* __iwl_trans_h__ */ |