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 | * |
Wey-Yi Guy | 4e31826 | 2011-12-27 11:21:32 -0800 | [diff] [blame] | 8 | * Copyright(c) 2007 - 2012 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 |
| 25 | * in the file called LICENSE.GPL. |
| 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 | * |
Wey-Yi Guy | 4e31826 | 2011-12-27 11:21:32 -0800 | [diff] [blame] | 33 | * Copyright(c) 2005 - 2012 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 */ |
Emmanuel Grumbach | a72b8b0 | 2011-08-25 23:11:13 -0700 | [diff] [blame] | 68 | |
| 69 | #include "iwl-shared.h" |
Emmanuel Grumbach | 69655eb | 2012-02-06 14:30:54 +0200 | [diff] [blame] | 70 | #include "iwl-debug.h" |
Emmanuel Grumbach | 87e5666 | 2011-08-25 23:10:50 -0700 | [diff] [blame] | 71 | |
Emmanuel Grumbach | 6039618 | 2012-02-06 16:41:58 +0200 | [diff] [blame] | 72 | /** |
| 73 | * DOC: Transport layer - what is it ? |
| 74 | * |
| 75 | * The tranport layer is the layer that deals with the HW directly. It provides |
| 76 | * an abstraction of the underlying HW to the upper layer. The transport layer |
| 77 | * doesn't provide any policy, algorithm or anything of this kind, but only |
| 78 | * mechanisms to make the HW do something.It is not completely stateless but |
| 79 | * close to it. |
| 80 | * We will have an implementation for each different supported bus. |
| 81 | */ |
| 82 | |
| 83 | /** |
| 84 | * DOC: Life cycle of the transport layer |
| 85 | * |
| 86 | * The transport layer has a very precise life cycle. |
| 87 | * |
| 88 | * 1) A helper function is called during the module initialization and |
| 89 | * registers the bus driver's ops with the transport's alloc function. |
| 90 | * 2) Bus's probe calls to the transport layer's allocation functions. |
| 91 | * Of course this function is bus specific. |
| 92 | * 3) This allocation functions will spawn the upper layer which will |
| 93 | * register mac80211. |
| 94 | * |
| 95 | * 4) At some point (i.e. mac80211's start call), the op_mode will call |
| 96 | * the following sequence: |
| 97 | * start_hw |
| 98 | * start_fw |
| 99 | * |
| 100 | * 5) Then when finished (or reset): |
| 101 | * stop_fw (a.k.a. stop device for the moment) |
| 102 | * stop_hw |
| 103 | * |
| 104 | * 6) Eventually, the free function will be called. |
| 105 | */ |
| 106 | |
Emmanuel Grumbach | 41c5054 | 2011-07-11 08:51:04 +0300 | [diff] [blame] | 107 | struct iwl_priv; |
Emmanuel Grumbach | e6bb4c9 | 2011-08-25 23:10:48 -0700 | [diff] [blame] | 108 | struct iwl_shared; |
Emmanuel Grumbach | ed277c9 | 2012-02-09 16:08:15 +0200 | [diff] [blame] | 109 | struct iwl_op_mode; |
Emmanuel Grumbach | e679378 | 2012-02-16 09:47:01 +0200 | [diff] [blame] | 110 | struct fw_img; |
| 111 | struct sk_buff; |
| 112 | struct dentry; |
Emmanuel Grumbach | 522376d | 2011-09-06 09:31:19 -0700 | [diff] [blame] | 113 | |
Emmanuel Grumbach | 6039618 | 2012-02-06 16:41:58 +0200 | [diff] [blame] | 114 | /** |
| 115 | * DOC: Host command section |
| 116 | * |
| 117 | * A host command is a commaned issued by the upper layer to the fw. There are |
| 118 | * several versions of fw that have several APIs. The transport layer is |
| 119 | * completely agnostic to these differences. |
| 120 | * The transport does provide helper functionnality (i.e. SYNC / ASYNC mode), |
| 121 | */ |
Emmanuel Grumbach | 522376d | 2011-09-06 09:31:19 -0700 | [diff] [blame] | 122 | #define SEQ_TO_SN(seq) (((seq) & IEEE80211_SCTL_SEQ) >> 4) |
| 123 | #define SN_TO_SEQ(ssn) (((ssn) << 4) & IEEE80211_SCTL_SEQ) |
| 124 | #define MAX_SN ((IEEE80211_SCTL_SEQ) >> 4) |
Johannes Berg | f8d7c1a | 2012-03-06 13:31:02 -0800 | [diff] [blame] | 125 | #define SEQ_TO_QUEUE(s) (((s) >> 8) & 0x1f) |
| 126 | #define QUEUE_TO_SEQ(q) (((q) & 0x1f) << 8) |
| 127 | #define SEQ_TO_INDEX(s) ((s) & 0xff) |
| 128 | #define INDEX_TO_SEQ(i) ((i) & 0xff) |
| 129 | #define SEQ_RX_FRAME cpu_to_le16(0x8000) |
| 130 | |
| 131 | /** |
| 132 | * struct iwl_cmd_header |
| 133 | * |
| 134 | * This header format appears in the beginning of each command sent from the |
| 135 | * driver, and each response/notification received from uCode. |
| 136 | */ |
| 137 | struct iwl_cmd_header { |
| 138 | u8 cmd; /* Command ID: REPLY_RXON, etc. */ |
| 139 | u8 flags; /* 0:5 reserved, 6 abort, 7 internal */ |
| 140 | /* |
| 141 | * The driver sets up the sequence number to values of its choosing. |
| 142 | * uCode does not use this value, but passes it back to the driver |
| 143 | * when sending the response to each driver-originated command, so |
| 144 | * the driver can match the response to the command. Since the values |
| 145 | * don't get used by uCode, the driver may set up an arbitrary format. |
| 146 | * |
| 147 | * There is one exception: uCode sets bit 15 when it originates |
| 148 | * the response/notification, i.e. when the response/notification |
| 149 | * is not a direct response to a command sent by the driver. For |
| 150 | * example, uCode issues REPLY_RX when it sends a received frame |
| 151 | * to the driver; it is not a direct response to any driver command. |
| 152 | * |
| 153 | * The Linux driver uses the following format: |
| 154 | * |
| 155 | * 0:7 tfd index - position within TX queue |
| 156 | * 8:12 TX queue id |
| 157 | * 13:14 reserved |
| 158 | * 15 unsolicited RX or uCode-originated notification |
| 159 | */ |
| 160 | __le16 sequence; |
| 161 | } __packed; |
| 162 | |
| 163 | |
| 164 | #define FH_RSCSR_FRAME_SIZE_MSK 0x00003FFF /* bits 0-13 */ |
| 165 | |
| 166 | struct iwl_rx_packet { |
| 167 | /* |
| 168 | * The first 4 bytes of the RX frame header contain both the RX frame |
| 169 | * size and some flags. |
| 170 | * Bit fields: |
| 171 | * 31: flag flush RB request |
| 172 | * 30: flag ignore TC (terminal counter) request |
| 173 | * 29: flag fast IRQ request |
| 174 | * 28-14: Reserved |
| 175 | * 13-00: RX frame size |
| 176 | */ |
| 177 | __le32 len_n_flags; |
| 178 | struct iwl_cmd_header hdr; |
| 179 | u8 data[]; |
| 180 | } __packed; |
Emmanuel Grumbach | 522376d | 2011-09-06 09:31:19 -0700 | [diff] [blame] | 181 | |
Emmanuel Grumbach | 6039618 | 2012-02-06 16:41:58 +0200 | [diff] [blame] | 182 | /** |
| 183 | * enum CMD_MODE - how to send the host commands ? |
| 184 | * |
| 185 | * @CMD_SYNC: The caller will be stalled until the fw responds to the command |
| 186 | * @CMD_ASYNC: Return right away and don't want for the response |
| 187 | * @CMD_WANT_SKB: valid only with CMD_SYNC. The caller needs the buffer of the |
| 188 | * response. |
| 189 | * @CMD_ON_DEMAND: This command is sent by the test mode pipe. |
| 190 | */ |
| 191 | enum CMD_MODE { |
Emmanuel Grumbach | 522376d | 2011-09-06 09:31:19 -0700 | [diff] [blame] | 192 | CMD_SYNC = 0, |
| 193 | CMD_ASYNC = BIT(0), |
| 194 | CMD_WANT_SKB = BIT(1), |
| 195 | CMD_ON_DEMAND = BIT(2), |
| 196 | }; |
| 197 | |
| 198 | #define DEF_CMD_PAYLOAD_SIZE 320 |
| 199 | |
| 200 | /** |
| 201 | * struct iwl_device_cmd |
| 202 | * |
| 203 | * For allocation of the command and tx queues, this establishes the overall |
| 204 | * size of the largest command we send to uCode, except for commands that |
| 205 | * aren't fully copied and use other TFD space. |
| 206 | */ |
| 207 | struct iwl_device_cmd { |
| 208 | struct iwl_cmd_header hdr; /* uCode API */ |
Emmanuel Grumbach | 132f98c | 2011-09-20 15:37:24 -0700 | [diff] [blame] | 209 | u8 payload[DEF_CMD_PAYLOAD_SIZE]; |
Emmanuel Grumbach | 522376d | 2011-09-06 09:31:19 -0700 | [diff] [blame] | 210 | } __packed; |
| 211 | |
| 212 | #define TFD_MAX_PAYLOAD_SIZE (sizeof(struct iwl_device_cmd)) |
| 213 | |
| 214 | #define IWL_MAX_CMD_TFDS 2 |
| 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 | * |
| 219 | * IWL_HCMD_DFL_NOCOPY: By default, the command is copied to the host command's |
| 220 | * ring. The transport layer doesn't map the command's buffer to DMA, but |
| 221 | * rather copies it to an previously allocated DMA buffer. This flag tells |
| 222 | * the transport layer not to copy the command, but to map the existing |
| 223 | * buffer. This can save memcpy and is worth with very big comamnds. |
| 224 | */ |
Emmanuel Grumbach | 522376d | 2011-09-06 09:31:19 -0700 | [diff] [blame] | 225 | enum iwl_hcmd_dataflag { |
| 226 | IWL_HCMD_DFL_NOCOPY = BIT(0), |
| 227 | }; |
| 228 | |
| 229 | /** |
| 230 | * struct iwl_host_cmd - Host command to the uCode |
Emmanuel Grumbach | 6039618 | 2012-02-06 16:41:58 +0200 | [diff] [blame] | 231 | * |
Emmanuel Grumbach | 522376d | 2011-09-06 09:31:19 -0700 | [diff] [blame] | 232 | * @data: array of chunks that composes the data of the host command |
Johannes Berg | 65b94a4 | 2012-03-05 11:24:38 -0800 | [diff] [blame] | 233 | * @resp_pkt: response packet, if %CMD_WANT_SKB was set |
| 234 | * @_rx_page_order: (internally used to free response packet) |
| 235 | * @_rx_page_addr: (internally used to free response packet) |
Emmanuel Grumbach | 247c61d | 2011-09-20 15:37:23 -0700 | [diff] [blame] | 236 | * @handler_status: return value of the handler of the command |
| 237 | * (put in setup_rx_handlers) - valid for SYNC mode only |
Emmanuel Grumbach | 6039618 | 2012-02-06 16:41:58 +0200 | [diff] [blame] | 238 | * @flags: can be CMD_* |
Emmanuel Grumbach | 522376d | 2011-09-06 09:31:19 -0700 | [diff] [blame] | 239 | * @len: array of the lenths of the chunks in data |
Emmanuel Grumbach | 6039618 | 2012-02-06 16:41:58 +0200 | [diff] [blame] | 240 | * @dataflags: IWL_HCMD_DFL_* |
Emmanuel Grumbach | 522376d | 2011-09-06 09:31:19 -0700 | [diff] [blame] | 241 | * @id: id of the host command |
| 242 | */ |
| 243 | struct iwl_host_cmd { |
| 244 | const void *data[IWL_MAX_CMD_TFDS]; |
Johannes Berg | 65b94a4 | 2012-03-05 11:24:38 -0800 | [diff] [blame] | 245 | struct iwl_rx_packet *resp_pkt; |
| 246 | unsigned long _rx_page_addr; |
| 247 | u32 _rx_page_order; |
Emmanuel Grumbach | 247c61d | 2011-09-20 15:37:23 -0700 | [diff] [blame] | 248 | int handler_status; |
| 249 | |
Emmanuel Grumbach | 522376d | 2011-09-06 09:31:19 -0700 | [diff] [blame] | 250 | u32 flags; |
| 251 | u16 len[IWL_MAX_CMD_TFDS]; |
| 252 | u8 dataflags[IWL_MAX_CMD_TFDS]; |
| 253 | u8 id; |
| 254 | }; |
Emmanuel Grumbach | 41c5054 | 2011-07-11 08:51:04 +0300 | [diff] [blame] | 255 | |
Johannes Berg | 65b94a4 | 2012-03-05 11:24:38 -0800 | [diff] [blame] | 256 | static inline void iwl_free_resp(struct iwl_host_cmd *cmd) |
| 257 | { |
| 258 | free_pages(cmd->_rx_page_addr, cmd->_rx_page_order); |
| 259 | } |
| 260 | |
Johannes Berg | 930dfd5 | 2012-03-05 11:24:43 -0800 | [diff] [blame] | 261 | struct iwl_rx_cmd_buffer { |
| 262 | struct page *_page; |
| 263 | }; |
| 264 | |
| 265 | static inline void *rxb_addr(struct iwl_rx_cmd_buffer *r) |
| 266 | { |
| 267 | return page_address(r->_page); |
| 268 | } |
| 269 | |
| 270 | static inline struct page *rxb_steal_page(struct iwl_rx_cmd_buffer *r) |
| 271 | { |
| 272 | struct page *p = r->_page; |
| 273 | r->_page = NULL; |
| 274 | return p; |
| 275 | } |
| 276 | |
Emmanuel Grumbach | 41c5054 | 2011-07-11 08:51:04 +0300 | [diff] [blame] | 277 | /** |
| 278 | * struct iwl_trans_ops - transport specific operations |
Emmanuel Grumbach | 6039618 | 2012-02-06 16:41:58 +0200 | [diff] [blame] | 279 | * |
| 280 | * All the handlers MUST be implemented |
| 281 | * |
Emmanuel Grumbach | 57a1dc8 | 2012-01-08 13:22:16 +0200 | [diff] [blame] | 282 | * @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] | 283 | * May sleep |
Emmanuel Grumbach | cc56feb | 2012-01-08 13:37:59 +0200 | [diff] [blame] | 284 | * @stop_hw: stops the HW- from that point on, the HW will be in low power but |
| 285 | * will still issue interrupt if the HW RF kill is triggered. |
Emmanuel Grumbach | 6039618 | 2012-02-06 16:41:58 +0200 | [diff] [blame] | 286 | * May sleep |
Emmanuel Grumbach | cf61429 | 2012-01-08 16:33:58 +0200 | [diff] [blame] | 287 | * @start_fw: allocates and inits all the resources for the transport |
Emmanuel Grumbach | 6039618 | 2012-02-06 16:41:58 +0200 | [diff] [blame] | 288 | * layer. Also kick a fw image. |
| 289 | * May sleep |
Emmanuel Grumbach | ed6a380 | 2012-01-02 16:10:08 +0200 | [diff] [blame] | 290 | * @fw_alive: called when the fw sends alive notification |
Emmanuel Grumbach | 6039618 | 2012-02-06 16:41:58 +0200 | [diff] [blame] | 291 | * May sleep |
Emmanuel Grumbach | 41c5054 | 2011-07-11 08:51:04 +0300 | [diff] [blame] | 292 | * @stop_device:stops the whole device (embedded CPU put to reset) |
Emmanuel Grumbach | 6039618 | 2012-02-06 16:41:58 +0200 | [diff] [blame] | 293 | * May sleep |
Johannes Berg | 2dd4f9f | 2012-03-05 11:24:35 -0800 | [diff] [blame] | 294 | * @wowlan_suspend: put the device into the correct mode for WoWLAN during |
| 295 | * suspend. This is optional, if not implemented WoWLAN will not be |
| 296 | * supported. This callback may sleep. |
Emmanuel Grumbach | 41c5054 | 2011-07-11 08:51:04 +0300 | [diff] [blame] | 297 | * @send_cmd:send a host command |
Emmanuel Grumbach | 6039618 | 2012-02-06 16:41:58 +0200 | [diff] [blame] | 298 | * May sleep only if CMD_SYNC is set |
Emmanuel Grumbach | 41c5054 | 2011-07-11 08:51:04 +0300 | [diff] [blame] | 299 | * @tx: send an skb |
Emmanuel Grumbach | 6039618 | 2012-02-06 16:41:58 +0200 | [diff] [blame] | 300 | * Must be atomic |
Emmanuel Grumbach | a0eaad7 | 2011-08-25 23:11:00 -0700 | [diff] [blame] | 301 | * @reclaim: free packet until ssn. Returns a list of freed packets. |
Emmanuel Grumbach | 6039618 | 2012-02-06 16:41:58 +0200 | [diff] [blame] | 302 | * Must be atomic |
Emmanuel Grumbach | 288712a | 2011-08-25 23:11:25 -0700 | [diff] [blame] | 303 | * @tx_agg_alloc: allocate resources for a TX BA session |
Johannes Berg | c977a33 | 2012-03-05 11:24:41 -0800 | [diff] [blame] | 304 | * Must be atomic |
Emmanuel Grumbach | c91bd12 | 2011-08-25 23:11:28 -0700 | [diff] [blame] | 305 | * @tx_agg_setup: setup a tx queue for AMPDU - will be called once the HW is |
Emmanuel Grumbach | 6039618 | 2012-02-06 16:41:58 +0200 | [diff] [blame] | 306 | * ready and a successful ADDBA response has been received. |
| 307 | * May sleep |
Emmanuel Grumbach | 7f01d56 | 2011-08-25 23:11:27 -0700 | [diff] [blame] | 308 | * @tx_agg_disable: de-configure a Tx queue to send AMPDUs |
Emmanuel Grumbach | 6039618 | 2012-02-06 16:41:58 +0200 | [diff] [blame] | 309 | * May sleep |
Emmanuel Grumbach | 41c5054 | 2011-07-11 08:51:04 +0300 | [diff] [blame] | 310 | * @free: release all the ressource for the transport layer itself such as |
Emmanuel Grumbach | 6039618 | 2012-02-06 16:41:58 +0200 | [diff] [blame] | 311 | * irq, tasklet etc... From this point on, the device may not issue |
| 312 | * any interrupt (incl. RFKILL). |
| 313 | * May sleep |
Emmanuel Grumbach | f22be62 | 2011-08-25 23:11:30 -0700 | [diff] [blame] | 314 | * @check_stuck_queue: check if a specific queue is stuck |
Emmanuel Grumbach | 5f178cd | 2011-08-25 23:11:29 -0700 | [diff] [blame] | 315 | * @wait_tx_queue_empty: wait until all tx queues are empty |
Emmanuel Grumbach | 6039618 | 2012-02-06 16:41:58 +0200 | [diff] [blame] | 316 | * May sleep |
Emmanuel Grumbach | 87e5666 | 2011-08-25 23:10:50 -0700 | [diff] [blame] | 317 | * @dbgfs_register: add the dbgfs files under this directory. Files will be |
| 318 | * automatically deleted. |
Emmanuel Grumbach | 57210f7 | 2011-08-25 23:10:52 -0700 | [diff] [blame] | 319 | * @suspend: stop the device unless WoWLAN is configured |
| 320 | * @resume: resume activity of the device |
Emmanuel Grumbach | 0390549 | 2012-01-03 13:48:07 +0200 | [diff] [blame] | 321 | * @write8: write a u8 to a register at offset ofs from the BAR |
| 322 | * @write32: write a u32 to a register at offset ofs from the BAR |
| 323 | * @read32: read a u32 register at offset ofs from the BAR |
Emmanuel Grumbach | 41c5054 | 2011-07-11 08:51:04 +0300 | [diff] [blame] | 324 | */ |
| 325 | struct iwl_trans_ops { |
| 326 | |
Emmanuel Grumbach | 57a1dc8 | 2012-01-08 13:22:16 +0200 | [diff] [blame] | 327 | int (*start_hw)(struct iwl_trans *iwl_trans); |
Emmanuel Grumbach | cc56feb | 2012-01-08 13:37:59 +0200 | [diff] [blame] | 328 | void (*stop_hw)(struct iwl_trans *iwl_trans); |
Johannes Berg | 0692fe4 | 2012-03-06 13:30:37 -0800 | [diff] [blame] | 329 | int (*start_fw)(struct iwl_trans *trans, const struct fw_img *fw); |
Emmanuel Grumbach | ed6a380 | 2012-01-02 16:10:08 +0200 | [diff] [blame] | 330 | void (*fw_alive)(struct iwl_trans *trans); |
Emmanuel Grumbach | 6d8f6ee | 2011-08-25 23:11:06 -0700 | [diff] [blame] | 331 | void (*stop_device)(struct iwl_trans *trans); |
Emmanuel Grumbach | 41c5054 | 2011-07-11 08:51:04 +0300 | [diff] [blame] | 332 | |
Johannes Berg | 2dd4f9f | 2012-03-05 11:24:35 -0800 | [diff] [blame] | 333 | void (*wowlan_suspend)(struct iwl_trans *trans); |
| 334 | |
Emmanuel Grumbach | 6d8f6ee | 2011-08-25 23:11:06 -0700 | [diff] [blame] | 335 | int (*send_cmd)(struct iwl_trans *trans, struct iwl_host_cmd *cmd); |
Emmanuel Grumbach | 41c5054 | 2011-07-11 08:51:04 +0300 | [diff] [blame] | 336 | |
Emmanuel Grumbach | e13c0c5 | 2011-08-25 23:11:24 -0700 | [diff] [blame] | 337 | int (*tx)(struct iwl_trans *trans, struct sk_buff *skb, |
Emmanuel Grumbach | 14991a9 | 2011-09-15 11:46:32 -0700 | [diff] [blame] | 338 | struct iwl_device_cmd *dev_cmd, enum iwl_rxon_context_id ctx, |
Emmanuel Grumbach | 34b5321 | 2011-11-21 13:25:31 +0200 | [diff] [blame] | 339 | u8 sta_id, u8 tid); |
Emmanuel Grumbach | 76bc10f | 2011-11-21 13:25:31 +0200 | [diff] [blame] | 340 | int (*reclaim)(struct iwl_trans *trans, int sta_id, int tid, |
Johannes Berg | e755f88 | 2012-03-07 09:52:16 -0800 | [diff] [blame^] | 341 | int txq_id, int ssn, struct sk_buff_head *skbs); |
Emmanuel Grumbach | 41c5054 | 2011-07-11 08:51:04 +0300 | [diff] [blame] | 342 | |
Emmanuel Grumbach | 7f01d56 | 2011-08-25 23:11:27 -0700 | [diff] [blame] | 343 | int (*tx_agg_disable)(struct iwl_trans *trans, |
Emmanuel Grumbach | bc23773 | 2011-11-21 13:25:31 +0200 | [diff] [blame] | 344 | int sta_id, int tid); |
Emmanuel Grumbach | 288712a | 2011-08-25 23:11:25 -0700 | [diff] [blame] | 345 | int (*tx_agg_alloc)(struct iwl_trans *trans, |
Emmanuel Grumbach | 3c69b59 | 2011-11-21 13:25:31 +0200 | [diff] [blame] | 346 | int sta_id, int tid); |
Emmanuel Grumbach | c91bd12 | 2011-08-25 23:11:28 -0700 | [diff] [blame] | 347 | void (*tx_agg_setup)(struct iwl_trans *trans, |
| 348 | enum iwl_rxon_context_id ctx, int sta_id, int tid, |
Emmanuel Grumbach | 822e8b2 | 2011-11-21 13:25:31 +0200 | [diff] [blame] | 349 | int frame_limit, u16 ssn); |
Emmanuel Grumbach | 41c5054 | 2011-07-11 08:51:04 +0300 | [diff] [blame] | 350 | |
Emmanuel Grumbach | 6d8f6ee | 2011-08-25 23:11:06 -0700 | [diff] [blame] | 351 | void (*free)(struct iwl_trans *trans); |
Emmanuel Grumbach | 87e5666 | 2011-08-25 23:10:50 -0700 | [diff] [blame] | 352 | |
| 353 | int (*dbgfs_register)(struct iwl_trans *trans, struct dentry* dir); |
Emmanuel Grumbach | f22be62 | 2011-08-25 23:11:30 -0700 | [diff] [blame] | 354 | int (*check_stuck_queue)(struct iwl_trans *trans, int q); |
Emmanuel Grumbach | 5f178cd | 2011-08-25 23:11:29 -0700 | [diff] [blame] | 355 | int (*wait_tx_queue_empty)(struct iwl_trans *trans); |
Johannes Berg | c01a404 | 2011-09-15 11:46:45 -0700 | [diff] [blame] | 356 | #ifdef CONFIG_PM_SLEEP |
Emmanuel Grumbach | 57210f7 | 2011-08-25 23:10:52 -0700 | [diff] [blame] | 357 | int (*suspend)(struct iwl_trans *trans); |
| 358 | int (*resume)(struct iwl_trans *trans); |
Johannes Berg | c01a404 | 2011-09-15 11:46:45 -0700 | [diff] [blame] | 359 | #endif |
Emmanuel Grumbach | 0390549 | 2012-01-03 13:48:07 +0200 | [diff] [blame] | 360 | void (*write8)(struct iwl_trans *trans, u32 ofs, u8 val); |
| 361 | void (*write32)(struct iwl_trans *trans, u32 ofs, u32 val); |
| 362 | u32 (*read32)(struct iwl_trans *trans, u32 ofs); |
Emmanuel Grumbach | 41c5054 | 2011-07-11 08:51:04 +0300 | [diff] [blame] | 363 | }; |
| 364 | |
Emmanuel Grumbach | 6fbfae8 | 2011-08-25 23:10:49 -0700 | [diff] [blame] | 365 | /** |
Emmanuel Grumbach | 69655eb | 2012-02-06 14:30:54 +0200 | [diff] [blame] | 366 | * enum iwl_trans_state - state of the transport layer |
| 367 | * |
| 368 | * @IWL_TRANS_NO_FW: no fw has sent an alive response |
| 369 | * @IWL_TRANS_FW_ALIVE: a fw has sent an alive response |
| 370 | */ |
| 371 | enum iwl_trans_state { |
| 372 | IWL_TRANS_NO_FW = 0, |
| 373 | IWL_TRANS_FW_ALIVE = 1, |
| 374 | }; |
| 375 | |
| 376 | /** |
Emmanuel Grumbach | 6fbfae8 | 2011-08-25 23:10:49 -0700 | [diff] [blame] | 377 | * struct iwl_trans - transport common data |
Emmanuel Grumbach | 6039618 | 2012-02-06 16:41:58 +0200 | [diff] [blame] | 378 | * |
Emmanuel Grumbach | 6fbfae8 | 2011-08-25 23:10:49 -0700 | [diff] [blame] | 379 | * @ops - pointer to iwl_trans_ops |
Emmanuel Grumbach | ed277c9 | 2012-02-09 16:08:15 +0200 | [diff] [blame] | 380 | * @op_mode - pointer to the op_mode |
Emmanuel Grumbach | 6fbfae8 | 2011-08-25 23:10:49 -0700 | [diff] [blame] | 381 | * @shrd - pointer to iwl_shared which holds shared data from the upper layer |
Emmanuel Grumbach | 1042db2 | 2012-01-03 16:56:15 +0200 | [diff] [blame] | 382 | * @reg_lock - protect hw register access |
Emmanuel Grumbach | a42a184 | 2012-02-02 14:33:08 -0800 | [diff] [blame] | 383 | * @dev - pointer to struct device * that represents the device |
Emmanuel Grumbach | 99673ee | 2012-01-08 21:19:45 +0200 | [diff] [blame] | 384 | * @hw_id: a u32 with the ID of the device / subdevice. |
Emmanuel Grumbach | 6039618 | 2012-02-06 16:41:58 +0200 | [diff] [blame] | 385 | * Set during transport allocation. |
Emmanuel Grumbach | 9ca8596 | 2012-01-08 21:19:45 +0200 | [diff] [blame] | 386 | * @hw_id_str: a string with info about HW ID. Set during transport allocation. |
Don Fry | 45c30db | 2011-11-30 16:58:39 -0800 | [diff] [blame] | 387 | * @nvm_device_type: indicates OTP or eeprom |
Emmanuel Grumbach | f6d0e9b | 2012-01-08 21:19:45 +0200 | [diff] [blame] | 388 | * @pm_support: set to true in start_hw if link pm is supported |
Emmanuel Grumbach | 6fbfae8 | 2011-08-25 23:10:49 -0700 | [diff] [blame] | 389 | */ |
Emmanuel Grumbach | 41c5054 | 2011-07-11 08:51:04 +0300 | [diff] [blame] | 390 | struct iwl_trans { |
| 391 | const struct iwl_trans_ops *ops; |
Emmanuel Grumbach | ed277c9 | 2012-02-09 16:08:15 +0200 | [diff] [blame] | 392 | struct iwl_op_mode *op_mode; |
Emmanuel Grumbach | e6bb4c9 | 2011-08-25 23:10:48 -0700 | [diff] [blame] | 393 | struct iwl_shared *shrd; |
Emmanuel Grumbach | 69655eb | 2012-02-06 14:30:54 +0200 | [diff] [blame] | 394 | enum iwl_trans_state state; |
Emmanuel Grumbach | 1042db2 | 2012-01-03 16:56:15 +0200 | [diff] [blame] | 395 | spinlock_t reg_lock; |
Emmanuel Grumbach | e6bb4c9 | 2011-08-25 23:10:48 -0700 | [diff] [blame] | 396 | |
Emmanuel Grumbach | a42a184 | 2012-02-02 14:33:08 -0800 | [diff] [blame] | 397 | struct device *dev; |
Emmanuel Grumbach | 08079a49 | 2012-01-09 16:23:00 +0200 | [diff] [blame] | 398 | u32 hw_rev; |
Emmanuel Grumbach | 99673ee | 2012-01-08 21:19:45 +0200 | [diff] [blame] | 399 | u32 hw_id; |
Emmanuel Grumbach | 9ca8596 | 2012-01-08 21:19:45 +0200 | [diff] [blame] | 400 | char hw_id_str[52]; |
Emmanuel Grumbach | a42a184 | 2012-02-02 14:33:08 -0800 | [diff] [blame] | 401 | |
Don Fry | 97b52cf | 2011-11-10 06:55:27 -0800 | [diff] [blame] | 402 | int nvm_device_type; |
Emmanuel Grumbach | f6d0e9b | 2012-01-08 21:19:45 +0200 | [diff] [blame] | 403 | bool pm_support; |
Don Fry | 97b52cf | 2011-11-10 06:55:27 -0800 | [diff] [blame] | 404 | |
Emmanuel Grumbach | e6bb4c9 | 2011-08-25 23:10:48 -0700 | [diff] [blame] | 405 | /* pointer to trans specific struct */ |
| 406 | /*Ensure that this pointer will always be aligned to sizeof pointer */ |
Emmanuel Grumbach | cbe6ab4 | 2012-02-15 09:25:06 +0200 | [diff] [blame] | 407 | char trans_specific[0] __aligned(sizeof(void *)); |
Emmanuel Grumbach | 41c5054 | 2011-07-11 08:51:04 +0300 | [diff] [blame] | 408 | }; |
| 409 | |
Emmanuel Grumbach | ed277c9 | 2012-02-09 16:08:15 +0200 | [diff] [blame] | 410 | static inline void iwl_trans_configure(struct iwl_trans *trans, |
| 411 | struct iwl_op_mode *op_mode) |
| 412 | { |
| 413 | /* |
| 414 | * only set the op_mode for the moment. Later on, this function will do |
| 415 | * more |
| 416 | */ |
| 417 | trans->op_mode = op_mode; |
| 418 | } |
| 419 | |
Emmanuel Grumbach | 57a1dc8 | 2012-01-08 13:22:16 +0200 | [diff] [blame] | 420 | static inline int iwl_trans_start_hw(struct iwl_trans *trans) |
Emmanuel Grumbach | bdfbf09 | 2011-07-08 08:46:16 -0700 | [diff] [blame] | 421 | { |
Emmanuel Grumbach | 6039618 | 2012-02-06 16:41:58 +0200 | [diff] [blame] | 422 | might_sleep(); |
| 423 | |
Emmanuel Grumbach | 57a1dc8 | 2012-01-08 13:22:16 +0200 | [diff] [blame] | 424 | return trans->ops->start_hw(trans); |
Emmanuel Grumbach | bdfbf09 | 2011-07-08 08:46:16 -0700 | [diff] [blame] | 425 | } |
| 426 | |
Emmanuel Grumbach | cc56feb | 2012-01-08 13:37:59 +0200 | [diff] [blame] | 427 | static inline void iwl_trans_stop_hw(struct iwl_trans *trans) |
| 428 | { |
Emmanuel Grumbach | 6039618 | 2012-02-06 16:41:58 +0200 | [diff] [blame] | 429 | might_sleep(); |
| 430 | |
Emmanuel Grumbach | cc56feb | 2012-01-08 13:37:59 +0200 | [diff] [blame] | 431 | trans->ops->stop_hw(trans); |
Emmanuel Grumbach | 69655eb | 2012-02-06 14:30:54 +0200 | [diff] [blame] | 432 | |
| 433 | trans->state = IWL_TRANS_NO_FW; |
Emmanuel Grumbach | cc56feb | 2012-01-08 13:37:59 +0200 | [diff] [blame] | 434 | } |
| 435 | |
Emmanuel Grumbach | ed6a380 | 2012-01-02 16:10:08 +0200 | [diff] [blame] | 436 | static inline void iwl_trans_fw_alive(struct iwl_trans *trans) |
| 437 | { |
Emmanuel Grumbach | 6039618 | 2012-02-06 16:41:58 +0200 | [diff] [blame] | 438 | might_sleep(); |
| 439 | |
Emmanuel Grumbach | ed6a380 | 2012-01-02 16:10:08 +0200 | [diff] [blame] | 440 | trans->ops->fw_alive(trans); |
Emmanuel Grumbach | 69655eb | 2012-02-06 14:30:54 +0200 | [diff] [blame] | 441 | |
| 442 | trans->state = IWL_TRANS_FW_ALIVE; |
Emmanuel Grumbach | ed6a380 | 2012-01-02 16:10:08 +0200 | [diff] [blame] | 443 | } |
| 444 | |
Johannes Berg | 0692fe4 | 2012-03-06 13:30:37 -0800 | [diff] [blame] | 445 | static inline int iwl_trans_start_fw(struct iwl_trans *trans, |
| 446 | const struct fw_img *fw) |
Emmanuel Grumbach | 0286cee | 2011-07-10 15:39:57 +0300 | [diff] [blame] | 447 | { |
Emmanuel Grumbach | cf61429 | 2012-01-08 16:33:58 +0200 | [diff] [blame] | 448 | might_sleep(); |
| 449 | |
| 450 | return trans->ops->start_fw(trans, fw); |
Emmanuel Grumbach | 0286cee | 2011-07-10 15:39:57 +0300 | [diff] [blame] | 451 | } |
| 452 | |
Emmanuel Grumbach | e6bb4c9 | 2011-08-25 23:10:48 -0700 | [diff] [blame] | 453 | static inline void iwl_trans_stop_device(struct iwl_trans *trans) |
Emmanuel Grumbach | b3c2ce1 | 2011-07-07 15:50:10 +0300 | [diff] [blame] | 454 | { |
Emmanuel Grumbach | 6039618 | 2012-02-06 16:41:58 +0200 | [diff] [blame] | 455 | might_sleep(); |
| 456 | |
Emmanuel Grumbach | 6d8f6ee | 2011-08-25 23:11:06 -0700 | [diff] [blame] | 457 | trans->ops->stop_device(trans); |
Emmanuel Grumbach | 69655eb | 2012-02-06 14:30:54 +0200 | [diff] [blame] | 458 | |
| 459 | trans->state = IWL_TRANS_NO_FW; |
Emmanuel Grumbach | b3c2ce1 | 2011-07-07 15:50:10 +0300 | [diff] [blame] | 460 | } |
| 461 | |
Johannes Berg | 2dd4f9f | 2012-03-05 11:24:35 -0800 | [diff] [blame] | 462 | static inline void iwl_trans_wowlan_suspend(struct iwl_trans *trans) |
| 463 | { |
| 464 | might_sleep(); |
| 465 | trans->ops->wowlan_suspend(trans); |
| 466 | } |
| 467 | |
Emmanuel Grumbach | e6bb4c9 | 2011-08-25 23:10:48 -0700 | [diff] [blame] | 468 | static inline int iwl_trans_send_cmd(struct iwl_trans *trans, |
Emmanuel Grumbach | bdfbf09 | 2011-07-08 08:46:16 -0700 | [diff] [blame] | 469 | struct iwl_host_cmd *cmd) |
| 470 | { |
Emmanuel Grumbach | 69655eb | 2012-02-06 14:30:54 +0200 | [diff] [blame] | 471 | if (trans->state != IWL_TRANS_FW_ALIVE) |
| 472 | IWL_ERR(trans, "%s bad state = %d", __func__, trans->state); |
| 473 | |
Emmanuel Grumbach | 6d8f6ee | 2011-08-25 23:11:06 -0700 | [diff] [blame] | 474 | return trans->ops->send_cmd(trans, cmd); |
Emmanuel Grumbach | bdfbf09 | 2011-07-08 08:46:16 -0700 | [diff] [blame] | 475 | } |
| 476 | |
Emmanuel Grumbach | e6bb4c9 | 2011-08-25 23:10:48 -0700 | [diff] [blame] | 477 | static inline int iwl_trans_tx(struct iwl_trans *trans, struct sk_buff *skb, |
Emmanuel Grumbach | 14991a9 | 2011-09-15 11:46:32 -0700 | [diff] [blame] | 478 | struct iwl_device_cmd *dev_cmd, enum iwl_rxon_context_id ctx, |
Emmanuel Grumbach | 34b5321 | 2011-11-21 13:25:31 +0200 | [diff] [blame] | 479 | u8 sta_id, u8 tid) |
Emmanuel Grumbach | 47c1b49 | 2011-07-03 11:22:15 +0300 | [diff] [blame] | 480 | { |
Emmanuel Grumbach | 69655eb | 2012-02-06 14:30:54 +0200 | [diff] [blame] | 481 | if (trans->state != IWL_TRANS_FW_ALIVE) |
| 482 | IWL_ERR(trans, "%s bad state = %d", __func__, trans->state); |
| 483 | |
Emmanuel Grumbach | 34b5321 | 2011-11-21 13:25:31 +0200 | [diff] [blame] | 484 | return trans->ops->tx(trans, skb, dev_cmd, ctx, sta_id, tid); |
Emmanuel Grumbach | 47c1b49 | 2011-07-03 11:22:15 +0300 | [diff] [blame] | 485 | } |
| 486 | |
Emmanuel Grumbach | 76bc10f | 2011-11-21 13:25:31 +0200 | [diff] [blame] | 487 | static inline int iwl_trans_reclaim(struct iwl_trans *trans, int sta_id, |
Johannes Berg | e755f88 | 2012-03-07 09:52:16 -0800 | [diff] [blame^] | 488 | int tid, int txq_id, int ssn, |
Emmanuel Grumbach | a0eaad7 | 2011-08-25 23:11:00 -0700 | [diff] [blame] | 489 | struct sk_buff_head *skbs) |
| 490 | { |
Emmanuel Grumbach | 69655eb | 2012-02-06 14:30:54 +0200 | [diff] [blame] | 491 | if (trans->state != IWL_TRANS_FW_ALIVE) |
| 492 | IWL_ERR(trans, "%s bad state = %d", __func__, trans->state); |
| 493 | |
Johannes Berg | e755f88 | 2012-03-07 09:52:16 -0800 | [diff] [blame^] | 494 | return trans->ops->reclaim(trans, sta_id, tid, txq_id, ssn, skbs); |
Emmanuel Grumbach | a0eaad7 | 2011-08-25 23:11:00 -0700 | [diff] [blame] | 495 | } |
| 496 | |
Emmanuel Grumbach | 7f01d56 | 2011-08-25 23:11:27 -0700 | [diff] [blame] | 497 | static inline int iwl_trans_tx_agg_disable(struct iwl_trans *trans, |
Emmanuel Grumbach | 7f01d56 | 2011-08-25 23:11:27 -0700 | [diff] [blame] | 498 | int sta_id, int tid) |
Emmanuel Grumbach | 48d42c4 | 2011-07-10 10:47:01 +0300 | [diff] [blame] | 499 | { |
Emmanuel Grumbach | 6039618 | 2012-02-06 16:41:58 +0200 | [diff] [blame] | 500 | might_sleep(); |
| 501 | |
Emmanuel Grumbach | 69655eb | 2012-02-06 14:30:54 +0200 | [diff] [blame] | 502 | if (trans->state != IWL_TRANS_FW_ALIVE) |
| 503 | IWL_ERR(trans, "%s bad state = %d", __func__, trans->state); |
| 504 | |
Emmanuel Grumbach | bc23773 | 2011-11-21 13:25:31 +0200 | [diff] [blame] | 505 | return trans->ops->tx_agg_disable(trans, sta_id, tid); |
Emmanuel Grumbach | 48d42c4 | 2011-07-10 10:47:01 +0300 | [diff] [blame] | 506 | } |
| 507 | |
Emmanuel Grumbach | 288712a | 2011-08-25 23:11:25 -0700 | [diff] [blame] | 508 | static inline int iwl_trans_tx_agg_alloc(struct iwl_trans *trans, |
Emmanuel Grumbach | 3c69b59 | 2011-11-21 13:25:31 +0200 | [diff] [blame] | 509 | int sta_id, int tid) |
Emmanuel Grumbach | 288712a | 2011-08-25 23:11:25 -0700 | [diff] [blame] | 510 | { |
Emmanuel Grumbach | 69655eb | 2012-02-06 14:30:54 +0200 | [diff] [blame] | 511 | if (trans->state != IWL_TRANS_FW_ALIVE) |
| 512 | IWL_ERR(trans, "%s bad state = %d", __func__, trans->state); |
| 513 | |
Emmanuel Grumbach | 3c69b59 | 2011-11-21 13:25:31 +0200 | [diff] [blame] | 514 | return trans->ops->tx_agg_alloc(trans, sta_id, tid); |
Emmanuel Grumbach | 288712a | 2011-08-25 23:11:25 -0700 | [diff] [blame] | 515 | } |
| 516 | |
| 517 | |
Emmanuel Grumbach | c91bd12 | 2011-08-25 23:11:28 -0700 | [diff] [blame] | 518 | static inline void iwl_trans_tx_agg_setup(struct iwl_trans *trans, |
Emmanuel Grumbach | ba562f7 | 2011-08-25 23:11:22 -0700 | [diff] [blame] | 519 | enum iwl_rxon_context_id ctx, |
| 520 | int sta_id, int tid, |
Emmanuel Grumbach | 822e8b2 | 2011-11-21 13:25:31 +0200 | [diff] [blame] | 521 | int frame_limit, u16 ssn) |
Emmanuel Grumbach | 48d42c4 | 2011-07-10 10:47:01 +0300 | [diff] [blame] | 522 | { |
Emmanuel Grumbach | 6039618 | 2012-02-06 16:41:58 +0200 | [diff] [blame] | 523 | might_sleep(); |
| 524 | |
Emmanuel Grumbach | 69655eb | 2012-02-06 14:30:54 +0200 | [diff] [blame] | 525 | if (trans->state != IWL_TRANS_FW_ALIVE) |
| 526 | IWL_ERR(trans, "%s bad state = %d", __func__, trans->state); |
| 527 | |
Emmanuel Grumbach | 822e8b2 | 2011-11-21 13:25:31 +0200 | [diff] [blame] | 528 | trans->ops->tx_agg_setup(trans, ctx, sta_id, tid, frame_limit, ssn); |
Emmanuel Grumbach | 48d42c4 | 2011-07-10 10:47:01 +0300 | [diff] [blame] | 529 | } |
| 530 | |
Emmanuel Grumbach | e6bb4c9 | 2011-08-25 23:10:48 -0700 | [diff] [blame] | 531 | static inline void iwl_trans_free(struct iwl_trans *trans) |
Emmanuel Grumbach | 34c1b7b | 2011-07-04 08:58:19 +0300 | [diff] [blame] | 532 | { |
Emmanuel Grumbach | 6d8f6ee | 2011-08-25 23:11:06 -0700 | [diff] [blame] | 533 | trans->ops->free(trans); |
Emmanuel Grumbach | 34c1b7b | 2011-07-04 08:58:19 +0300 | [diff] [blame] | 534 | } |
| 535 | |
Emmanuel Grumbach | 5f178cd | 2011-08-25 23:11:29 -0700 | [diff] [blame] | 536 | static inline int iwl_trans_wait_tx_queue_empty(struct iwl_trans *trans) |
| 537 | { |
Emmanuel Grumbach | 69655eb | 2012-02-06 14:30:54 +0200 | [diff] [blame] | 538 | if (trans->state != IWL_TRANS_FW_ALIVE) |
| 539 | IWL_ERR(trans, "%s bad state = %d", __func__, trans->state); |
| 540 | |
Emmanuel Grumbach | 5f178cd | 2011-08-25 23:11:29 -0700 | [diff] [blame] | 541 | return trans->ops->wait_tx_queue_empty(trans); |
| 542 | } |
| 543 | |
Emmanuel Grumbach | f22be62 | 2011-08-25 23:11:30 -0700 | [diff] [blame] | 544 | static inline int iwl_trans_check_stuck_queue(struct iwl_trans *trans, int q) |
| 545 | { |
Emmanuel Grumbach | 69655eb | 2012-02-06 14:30:54 +0200 | [diff] [blame] | 546 | if (trans->state != IWL_TRANS_FW_ALIVE) |
| 547 | IWL_ERR(trans, "%s bad state = %d", __func__, trans->state); |
| 548 | |
Emmanuel Grumbach | f22be62 | 2011-08-25 23:11:30 -0700 | [diff] [blame] | 549 | return trans->ops->check_stuck_queue(trans, q); |
| 550 | } |
Emmanuel Grumbach | 87e5666 | 2011-08-25 23:10:50 -0700 | [diff] [blame] | 551 | static inline int iwl_trans_dbgfs_register(struct iwl_trans *trans, |
| 552 | struct dentry *dir) |
| 553 | { |
| 554 | return trans->ops->dbgfs_register(trans, dir); |
| 555 | } |
| 556 | |
Johannes Berg | c01a404 | 2011-09-15 11:46:45 -0700 | [diff] [blame] | 557 | #ifdef CONFIG_PM_SLEEP |
Emmanuel Grumbach | 57210f7 | 2011-08-25 23:10:52 -0700 | [diff] [blame] | 558 | static inline int iwl_trans_suspend(struct iwl_trans *trans) |
| 559 | { |
| 560 | return trans->ops->suspend(trans); |
| 561 | } |
| 562 | |
| 563 | static inline int iwl_trans_resume(struct iwl_trans *trans) |
| 564 | { |
| 565 | return trans->ops->resume(trans); |
| 566 | } |
Johannes Berg | c01a404 | 2011-09-15 11:46:45 -0700 | [diff] [blame] | 567 | #endif |
Emmanuel Grumbach | 57210f7 | 2011-08-25 23:10:52 -0700 | [diff] [blame] | 568 | |
Emmanuel Grumbach | 0390549 | 2012-01-03 13:48:07 +0200 | [diff] [blame] | 569 | static inline void iwl_trans_write8(struct iwl_trans *trans, u32 ofs, u8 val) |
| 570 | { |
| 571 | trans->ops->write8(trans, ofs, val); |
| 572 | } |
| 573 | |
| 574 | static inline void iwl_trans_write32(struct iwl_trans *trans, u32 ofs, u32 val) |
| 575 | { |
| 576 | trans->ops->write32(trans, ofs, val); |
| 577 | } |
| 578 | |
| 579 | static inline u32 iwl_trans_read32(struct iwl_trans *trans, u32 ofs) |
| 580 | { |
| 581 | return trans->ops->read32(trans, ofs); |
| 582 | } |
| 583 | |
Emmanuel Grumbach | e6bb4c9 | 2011-08-25 23:10:48 -0700 | [diff] [blame] | 584 | /***************************************************** |
Emmanuel Grumbach | b52e7ea | 2012-02-02 14:16:59 -0800 | [diff] [blame] | 585 | * Transport layers implementations + their allocation function |
| 586 | ******************************************************/ |
| 587 | struct pci_dev; |
| 588 | struct pci_device_id; |
| 589 | extern const struct iwl_trans_ops trans_ops_pcie; |
| 590 | struct iwl_trans *iwl_trans_pcie_alloc(struct iwl_shared *shrd, |
| 591 | struct pci_dev *pdev, |
| 592 | const struct pci_device_id *ent); |
Emmanuel Grumbach | 36a7922 | 2012-02-27 13:53:32 -0800 | [diff] [blame] | 593 | int __must_check iwl_pci_register_driver(void); |
| 594 | void iwl_pci_unregister_driver(void); |
Emmanuel Grumbach | b52e7ea | 2012-02-02 14:16:59 -0800 | [diff] [blame] | 595 | |
| 596 | extern const struct iwl_trans_ops trans_ops_idi; |
| 597 | struct iwl_trans *iwl_trans_idi_alloc(struct iwl_shared *shrd, |
| 598 | void *pdev_void, |
| 599 | const void *ent_void); |
Emmanuel Grumbach | 41c5054 | 2011-07-11 08:51:04 +0300 | [diff] [blame] | 600 | #endif /* __iwl_trans_h__ */ |