Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1 | /* src/prism2/driver/hfa384x_usb.c |
| 2 | * |
| 3 | * Functions that talk to the USB variantof the Intersil hfa384x MAC |
| 4 | * |
| 5 | * Copyright (C) 1999 AbsoluteValue Systems, Inc. All Rights Reserved. |
| 6 | * -------------------------------------------------------------------- |
| 7 | * |
| 8 | * linux-wlan |
| 9 | * |
| 10 | * The contents of this file are subject to the Mozilla Public |
| 11 | * License Version 1.1 (the "License"); you may not use this file |
| 12 | * except in compliance with the License. You may obtain a copy of |
| 13 | * the License at http://www.mozilla.org/MPL/ |
| 14 | * |
| 15 | * Software distributed under the License is distributed on an "AS |
| 16 | * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or |
| 17 | * implied. See the License for the specific language governing |
| 18 | * rights and limitations under the License. |
| 19 | * |
| 20 | * Alternatively, the contents of this file may be used under the |
| 21 | * terms of the GNU Public License version 2 (the "GPL"), in which |
| 22 | * case the provisions of the GPL are applicable instead of the |
| 23 | * above. If you wish to allow the use of your version of this file |
| 24 | * only under the terms of the GPL and not to allow others to use |
| 25 | * your version of this file under the MPL, indicate your decision |
| 26 | * by deleting the provisions above and replace them with the notice |
| 27 | * and other provisions required by the GPL. If you do not delete |
| 28 | * the provisions above, a recipient may use your version of this |
| 29 | * file under either the MPL or the GPL. |
| 30 | * |
| 31 | * -------------------------------------------------------------------- |
| 32 | * |
| 33 | * Inquiries regarding the linux-wlan Open Source project can be |
| 34 | * made directly to: |
| 35 | * |
| 36 | * AbsoluteValue Systems Inc. |
| 37 | * info@linux-wlan.com |
| 38 | * http://www.linux-wlan.com |
| 39 | * |
| 40 | * -------------------------------------------------------------------- |
| 41 | * |
| 42 | * Portions of the development of this software were funded by |
| 43 | * Intersil Corporation as part of PRISM(R) chipset product development. |
| 44 | * |
| 45 | * -------------------------------------------------------------------- |
| 46 | * |
| 47 | * This file implements functions that correspond to the prism2/hfa384x |
| 48 | * 802.11 MAC hardware and firmware host interface. |
| 49 | * |
| 50 | * The functions can be considered to represent several levels of |
| 51 | * abstraction. The lowest level functions are simply C-callable wrappers |
| 52 | * around the register accesses. The next higher level represents C-callable |
| 53 | * prism2 API functions that match the Intersil documentation as closely |
| 54 | * as is reasonable. The next higher layer implements common sequences |
Adam Buchbinder | 3fc0d27 | 2009-12-18 15:43:52 -0500 | [diff] [blame] | 55 | * of invocations of the API layer (e.g. write to bap, followed by cmd). |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 56 | * |
| 57 | * Common sequences: |
| 58 | * hfa384x_drvr_xxx Highest level abstractions provided by the |
| 59 | * hfa384x code. They are driver defined wrappers |
| 60 | * for common sequences. These functions generally |
| 61 | * use the services of the lower levels. |
| 62 | * |
| 63 | * hfa384x_drvr_xxxconfig An example of the drvr level abstraction. These |
| 64 | * functions are wrappers for the RID get/set |
Edgardo Hames | 631c8de | 2010-03-08 17:02:37 -0800 | [diff] [blame] | 65 | * sequence. They call copy_[to|from]_bap() and |
| 66 | * cmd_access(). These functions operate on the |
| 67 | * RIDs and buffers without validation. The caller |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 68 | * is responsible for that. |
| 69 | * |
| 70 | * API wrapper functions: |
| 71 | * hfa384x_cmd_xxx functions that provide access to the f/w commands. |
| 72 | * The function arguments correspond to each command |
| 73 | * argument, even command arguments that get packed |
| 74 | * into single registers. These functions _just_ |
| 75 | * issue the command by setting the cmd/parm regs |
| 76 | * & reading the status/resp regs. Additional |
| 77 | * activities required to fully use a command |
| 78 | * (read/write from/to bap, get/set int status etc.) |
| 79 | * are implemented separately. Think of these as |
| 80 | * C-callable prism2 commands. |
| 81 | * |
| 82 | * Lowest Layer Functions: |
| 83 | * hfa384x_docmd_xxx These functions implement the sequence required |
| 84 | * to issue any prism2 command. Primarily used by the |
| 85 | * hfa384x_cmd_xxx functions. |
| 86 | * |
| 87 | * hfa384x_bap_xxx BAP read/write access functions. |
| 88 | * Note: we usually use BAP0 for non-interrupt context |
| 89 | * and BAP1 for interrupt context. |
| 90 | * |
| 91 | * hfa384x_dl_xxx download related functions. |
| 92 | * |
| 93 | * Driver State Issues: |
| 94 | * Note that there are two pairs of functions that manage the |
| 95 | * 'initialized' and 'running' states of the hw/MAC combo. The four |
| 96 | * functions are create(), destroy(), start(), and stop(). create() |
| 97 | * sets up the data structures required to support the hfa384x_* |
| 98 | * functions and destroy() cleans them up. The start() function gets |
| 99 | * the actual hardware running and enables the interrupts. The stop() |
| 100 | * function shuts the hardware down. The sequence should be: |
| 101 | * create() |
| 102 | * start() |
| 103 | * . |
| 104 | * . Do interesting things w/ the hardware |
| 105 | * . |
| 106 | * stop() |
| 107 | * destroy() |
| 108 | * |
| 109 | * Note that destroy() can be called without calling stop() first. |
| 110 | * -------------------------------------------------------------------- |
| 111 | */ |
| 112 | |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 113 | #include <linux/module.h> |
| 114 | #include <linux/kernel.h> |
| 115 | #include <linux/sched.h> |
| 116 | #include <linux/types.h> |
| 117 | #include <linux/slab.h> |
| 118 | #include <linux/wireless.h> |
| 119 | #include <linux/netdevice.h> |
| 120 | #include <linux/timer.h> |
Andrew Elwell | ef1a0ed | 2010-02-18 23:56:12 +0100 | [diff] [blame] | 121 | #include <linux/io.h> |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 122 | #include <linux/delay.h> |
| 123 | #include <asm/byteorder.h> |
Andrew Elwell | ef1a0ed | 2010-02-18 23:56:12 +0100 | [diff] [blame] | 124 | #include <linux/bitops.h> |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 125 | #include <linux/list.h> |
| 126 | #include <linux/usb.h> |
Moritz Muehlenhoff | ae26230 | 2009-01-21 22:00:45 +0100 | [diff] [blame] | 127 | #include <linux/byteorder/generic.h> |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 128 | |
Svenne Krap | 5dd8acc | 2010-02-14 18:59:00 +0100 | [diff] [blame] | 129 | #define SUBMIT_URB(u, f) usb_submit_urb(u, f) |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 130 | |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 131 | #include "p80211types.h" |
| 132 | #include "p80211hdr.h" |
| 133 | #include "p80211mgmt.h" |
| 134 | #include "p80211conv.h" |
| 135 | #include "p80211msg.h" |
| 136 | #include "p80211netdev.h" |
| 137 | #include "p80211req.h" |
| 138 | #include "p80211metadef.h" |
| 139 | #include "p80211metastruct.h" |
| 140 | #include "hfa384x.h" |
| 141 | #include "prism2mgmt.h" |
| 142 | |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 143 | enum cmd_mode { |
| 144 | DOWAIT = 0, |
| 145 | DOASYNC |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 146 | }; |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 147 | |
| 148 | #define THROTTLE_JIFFIES (HZ/8) |
Moritz Muehlenhoff | 2d200d9 | 2009-01-25 21:54:56 +0100 | [diff] [blame] | 149 | #define URB_ASYNC_UNLINK 0 |
| 150 | #define USB_QUEUE_BULK 0 |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 151 | |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 152 | #define ROUNDUP64(a) (((a)+63)&~63) |
| 153 | |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 154 | #ifdef DEBUG_USB |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 155 | static void dbprint_urb(struct urb *urb); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 156 | #endif |
| 157 | |
| 158 | static void |
Mithlesh Thukral | 297f06c | 2009-06-10 19:36:11 +0530 | [diff] [blame] | 159 | hfa384x_int_rxmonitor(wlandevice_t *wlandev, hfa384x_usb_rxfrm_t *rxfrm); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 160 | |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 161 | static void hfa384x_usb_defer(struct work_struct *data); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 162 | |
Mithlesh Thukral | 297f06c | 2009-06-10 19:36:11 +0530 | [diff] [blame] | 163 | static int submit_rx_urb(hfa384x_t *hw, gfp_t flags); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 164 | |
Mithlesh Thukral | 297f06c | 2009-06-10 19:36:11 +0530 | [diff] [blame] | 165 | static int submit_tx_urb(hfa384x_t *hw, struct urb *tx_urb, gfp_t flags); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 166 | |
| 167 | /*---------------------------------------------------*/ |
| 168 | /* Callbacks */ |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 169 | static void hfa384x_usbout_callback(struct urb *urb); |
| 170 | static void hfa384x_ctlxout_callback(struct urb *urb); |
| 171 | static void hfa384x_usbin_callback(struct urb *urb); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 172 | |
| 173 | static void |
Mithlesh Thukral | 297f06c | 2009-06-10 19:36:11 +0530 | [diff] [blame] | 174 | hfa384x_usbin_txcompl(wlandevice_t *wlandev, hfa384x_usbin_t * usbin); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 175 | |
Mithlesh Thukral | 297f06c | 2009-06-10 19:36:11 +0530 | [diff] [blame] | 176 | static void hfa384x_usbin_rx(wlandevice_t *wlandev, struct sk_buff *skb); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 177 | |
Mithlesh Thukral | 297f06c | 2009-06-10 19:36:11 +0530 | [diff] [blame] | 178 | static void hfa384x_usbin_info(wlandevice_t *wlandev, hfa384x_usbin_t * usbin); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 179 | |
| 180 | static void |
Mithlesh Thukral | 297f06c | 2009-06-10 19:36:11 +0530 | [diff] [blame] | 181 | hfa384x_usbout_tx(wlandevice_t *wlandev, hfa384x_usbout_t *usbout); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 182 | |
Mithlesh Thukral | 297f06c | 2009-06-10 19:36:11 +0530 | [diff] [blame] | 183 | static void hfa384x_usbin_ctlx(hfa384x_t *hw, hfa384x_usbin_t *usbin, |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 184 | int urb_status); |
| 185 | |
| 186 | /*---------------------------------------------------*/ |
| 187 | /* Functions to support the prism2 usb command queue */ |
| 188 | |
Mithlesh Thukral | 297f06c | 2009-06-10 19:36:11 +0530 | [diff] [blame] | 189 | static void hfa384x_usbctlxq_run(hfa384x_t *hw); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 190 | |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 191 | static void hfa384x_usbctlx_reqtimerfn(unsigned long data); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 192 | |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 193 | static void hfa384x_usbctlx_resptimerfn(unsigned long data); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 194 | |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 195 | static void hfa384x_usb_throttlefn(unsigned long data); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 196 | |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 197 | static void hfa384x_usbctlx_completion_task(unsigned long data); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 198 | |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 199 | static void hfa384x_usbctlx_reaper_task(unsigned long data); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 200 | |
Mithlesh Thukral | 297f06c | 2009-06-10 19:36:11 +0530 | [diff] [blame] | 201 | static int hfa384x_usbctlx_submit(hfa384x_t *hw, hfa384x_usbctlx_t *ctlx); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 202 | |
Mithlesh Thukral | 297f06c | 2009-06-10 19:36:11 +0530 | [diff] [blame] | 203 | static void unlocked_usbctlx_complete(hfa384x_t *hw, hfa384x_usbctlx_t *ctlx); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 204 | |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 205 | struct usbctlx_completor { |
| 206 | int (*complete) (struct usbctlx_completor *); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 207 | }; |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 208 | |
| 209 | static int |
Mithlesh Thukral | 297f06c | 2009-06-10 19:36:11 +0530 | [diff] [blame] | 210 | hfa384x_usbctlx_complete_sync(hfa384x_t *hw, |
| 211 | hfa384x_usbctlx_t *ctlx, |
Edgardo Hames | 631c8de | 2010-03-08 17:02:37 -0800 | [diff] [blame] | 212 | struct usbctlx_completor *completor); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 213 | |
| 214 | static int |
Mithlesh Thukral | 297f06c | 2009-06-10 19:36:11 +0530 | [diff] [blame] | 215 | unlocked_usbctlx_cancel_async(hfa384x_t *hw, hfa384x_usbctlx_t *ctlx); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 216 | |
Mithlesh Thukral | 297f06c | 2009-06-10 19:36:11 +0530 | [diff] [blame] | 217 | static void hfa384x_cb_status(hfa384x_t *hw, const hfa384x_usbctlx_t *ctlx); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 218 | |
Mithlesh Thukral | 297f06c | 2009-06-10 19:36:11 +0530 | [diff] [blame] | 219 | static void hfa384x_cb_rrid(hfa384x_t *hw, const hfa384x_usbctlx_t *ctlx); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 220 | |
| 221 | static int |
Mithlesh Thukral | 297f06c | 2009-06-10 19:36:11 +0530 | [diff] [blame] | 222 | usbctlx_get_status(const hfa384x_usb_cmdresp_t *cmdresp, |
| 223 | hfa384x_cmdresult_t *result); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 224 | |
| 225 | static void |
Mithlesh Thukral | 297f06c | 2009-06-10 19:36:11 +0530 | [diff] [blame] | 226 | usbctlx_get_rridresult(const hfa384x_usb_rridresp_t *rridresp, |
| 227 | hfa384x_rridresult_t *result); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 228 | |
| 229 | /*---------------------------------------------------*/ |
| 230 | /* Low level req/resp CTLX formatters and submitters */ |
| 231 | static int |
Mithlesh Thukral | 297f06c | 2009-06-10 19:36:11 +0530 | [diff] [blame] | 232 | hfa384x_docmd(hfa384x_t *hw, |
Edgardo Hames | 631c8de | 2010-03-08 17:02:37 -0800 | [diff] [blame] | 233 | enum cmd_mode mode, |
Mithlesh Thukral | 297f06c | 2009-06-10 19:36:11 +0530 | [diff] [blame] | 234 | hfa384x_metacmd_t *cmd, |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 235 | ctlx_cmdcb_t cmdcb, ctlx_usercb_t usercb, void *usercb_data); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 236 | |
| 237 | static int |
Mithlesh Thukral | 297f06c | 2009-06-10 19:36:11 +0530 | [diff] [blame] | 238 | hfa384x_dorrid(hfa384x_t *hw, |
Edgardo Hames | 631c8de | 2010-03-08 17:02:37 -0800 | [diff] [blame] | 239 | enum cmd_mode mode, |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 240 | u16 rid, |
| 241 | void *riddata, |
| 242 | unsigned int riddatalen, |
| 243 | ctlx_cmdcb_t cmdcb, ctlx_usercb_t usercb, void *usercb_data); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 244 | |
| 245 | static int |
Mithlesh Thukral | 297f06c | 2009-06-10 19:36:11 +0530 | [diff] [blame] | 246 | hfa384x_dowrid(hfa384x_t *hw, |
Edgardo Hames | 631c8de | 2010-03-08 17:02:37 -0800 | [diff] [blame] | 247 | enum cmd_mode mode, |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 248 | u16 rid, |
| 249 | void *riddata, |
| 250 | unsigned int riddatalen, |
| 251 | ctlx_cmdcb_t cmdcb, ctlx_usercb_t usercb, void *usercb_data); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 252 | |
| 253 | static int |
Mithlesh Thukral | 297f06c | 2009-06-10 19:36:11 +0530 | [diff] [blame] | 254 | hfa384x_dormem(hfa384x_t *hw, |
Edgardo Hames | 631c8de | 2010-03-08 17:02:37 -0800 | [diff] [blame] | 255 | enum cmd_mode mode, |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 256 | u16 page, |
| 257 | u16 offset, |
| 258 | void *data, |
| 259 | unsigned int len, |
| 260 | ctlx_cmdcb_t cmdcb, ctlx_usercb_t usercb, void *usercb_data); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 261 | |
| 262 | static int |
Mithlesh Thukral | 297f06c | 2009-06-10 19:36:11 +0530 | [diff] [blame] | 263 | hfa384x_dowmem(hfa384x_t *hw, |
Edgardo Hames | 631c8de | 2010-03-08 17:02:37 -0800 | [diff] [blame] | 264 | enum cmd_mode mode, |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 265 | u16 page, |
| 266 | u16 offset, |
| 267 | void *data, |
| 268 | unsigned int len, |
| 269 | ctlx_cmdcb_t cmdcb, ctlx_usercb_t usercb, void *usercb_data); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 270 | |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 271 | static int hfa384x_isgood_pdrcode(u16 pdrcode); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 272 | |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 273 | static inline const char *ctlxstr(CTLX_STATE s) |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 274 | { |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 275 | static const char *ctlx_str[] = { |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 276 | "Initial state", |
| 277 | "Complete", |
| 278 | "Request failed", |
| 279 | "Request pending", |
| 280 | "Request packet submitted", |
| 281 | "Request packet completed", |
| 282 | "Response packet completed" |
| 283 | }; |
| 284 | |
| 285 | return ctlx_str[s]; |
| 286 | }; |
| 287 | |
Mithlesh Thukral | 75f49e0 | 2009-05-25 19:06:16 +0530 | [diff] [blame] | 288 | static inline hfa384x_usbctlx_t *get_active_ctlx(hfa384x_t * hw) |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 289 | { |
| 290 | return list_entry(hw->ctlxq.active.next, hfa384x_usbctlx_t, list); |
| 291 | } |
| 292 | |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 293 | #ifdef DEBUG_USB |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 294 | void dbprint_urb(struct urb *urb) |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 295 | { |
Moritz Muehlenhoff | a7cf7ba | 2009-02-08 02:01:00 +0100 | [diff] [blame] | 296 | pr_debug("urb->pipe=0x%08x\n", urb->pipe); |
| 297 | pr_debug("urb->status=0x%08x\n", urb->status); |
| 298 | pr_debug("urb->transfer_flags=0x%08x\n", urb->transfer_flags); |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 299 | pr_debug("urb->transfer_buffer=0x%08x\n", |
Mithlesh Thukral | 75f49e0 | 2009-05-25 19:06:16 +0530 | [diff] [blame] | 300 | (unsigned int)urb->transfer_buffer); |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 301 | pr_debug("urb->transfer_buffer_length=0x%08x\n", |
Mithlesh Thukral | 75f49e0 | 2009-05-25 19:06:16 +0530 | [diff] [blame] | 302 | urb->transfer_buffer_length); |
Moritz Muehlenhoff | a7cf7ba | 2009-02-08 02:01:00 +0100 | [diff] [blame] | 303 | pr_debug("urb->actual_length=0x%08x\n", urb->actual_length); |
| 304 | pr_debug("urb->bandwidth=0x%08x\n", urb->bandwidth); |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 305 | pr_debug("urb->setup_packet(ctl)=0x%08x\n", |
Mithlesh Thukral | 75f49e0 | 2009-05-25 19:06:16 +0530 | [diff] [blame] | 306 | (unsigned int)urb->setup_packet); |
| 307 | pr_debug("urb->start_frame(iso/irq)=0x%08x\n", urb->start_frame); |
Moritz Muehlenhoff | a7cf7ba | 2009-02-08 02:01:00 +0100 | [diff] [blame] | 308 | pr_debug("urb->interval(irq)=0x%08x\n", urb->interval); |
| 309 | pr_debug("urb->error_count(iso)=0x%08x\n", urb->error_count); |
| 310 | pr_debug("urb->timeout=0x%08x\n", urb->timeout); |
| 311 | pr_debug("urb->context=0x%08x\n", (unsigned int)urb->context); |
Mithlesh Thukral | 75f49e0 | 2009-05-25 19:06:16 +0530 | [diff] [blame] | 312 | pr_debug("urb->complete=0x%08x\n", (unsigned int)urb->complete); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 313 | } |
| 314 | #endif |
| 315 | |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 316 | /*---------------------------------------------------------------- |
| 317 | * submit_rx_urb |
| 318 | * |
| 319 | * Listen for input data on the BULK-IN pipe. If the pipe has |
| 320 | * stalled then schedule it to be reset. |
| 321 | * |
| 322 | * Arguments: |
| 323 | * hw device struct |
| 324 | * memflags memory allocation flags |
| 325 | * |
| 326 | * Returns: |
| 327 | * error code from submission |
| 328 | * |
| 329 | * Call context: |
| 330 | * Any |
| 331 | ----------------------------------------------------------------*/ |
Mithlesh Thukral | 297f06c | 2009-06-10 19:36:11 +0530 | [diff] [blame] | 332 | static int submit_rx_urb(hfa384x_t *hw, gfp_t memflags) |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 333 | { |
| 334 | struct sk_buff *skb; |
| 335 | int result; |
| 336 | |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 337 | skb = dev_alloc_skb(sizeof(hfa384x_usbin_t)); |
| 338 | if (skb == NULL) { |
| 339 | result = -ENOMEM; |
| 340 | goto done; |
| 341 | } |
| 342 | |
| 343 | /* Post the IN urb */ |
| 344 | usb_fill_bulk_urb(&hw->rx_urb, hw->usb, |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 345 | hw->endp_in, |
| 346 | skb->data, sizeof(hfa384x_usbin_t), |
| 347 | hfa384x_usbin_callback, hw->wlandev); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 348 | |
| 349 | hw->rx_urb_skb = skb; |
| 350 | |
| 351 | result = -ENOLINK; |
Edgardo Hames | 631c8de | 2010-03-08 17:02:37 -0800 | [diff] [blame] | 352 | if (!hw->wlandev->hwremoved && |
| 353 | !test_bit(WORK_RX_HALT, &hw->usb_flags)) { |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 354 | result = SUBMIT_URB(&hw->rx_urb, memflags); |
| 355 | |
| 356 | /* Check whether we need to reset the RX pipe */ |
| 357 | if (result == -EPIPE) { |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 358 | printk(KERN_WARNING |
| 359 | "%s rx pipe stalled: requesting reset\n", |
| 360 | hw->wlandev->netdev->name); |
| 361 | if (!test_and_set_bit(WORK_RX_HALT, &hw->usb_flags)) |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 362 | schedule_work(&hw->usb_work); |
| 363 | } |
| 364 | } |
| 365 | |
| 366 | /* Don't leak memory if anything should go wrong */ |
| 367 | if (result != 0) { |
| 368 | dev_kfree_skb(skb); |
| 369 | hw->rx_urb_skb = NULL; |
| 370 | } |
| 371 | |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 372 | done: |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 373 | return result; |
| 374 | } |
| 375 | |
| 376 | /*---------------------------------------------------------------- |
| 377 | * submit_tx_urb |
| 378 | * |
| 379 | * Prepares and submits the URB of transmitted data. If the |
| 380 | * submission fails then it will schedule the output pipe to |
| 381 | * be reset. |
| 382 | * |
| 383 | * Arguments: |
| 384 | * hw device struct |
| 385 | * tx_urb URB of data for tranmission |
| 386 | * memflags memory allocation flags |
| 387 | * |
| 388 | * Returns: |
| 389 | * error code from submission |
| 390 | * |
| 391 | * Call context: |
| 392 | * Any |
| 393 | ----------------------------------------------------------------*/ |
Mithlesh Thukral | 297f06c | 2009-06-10 19:36:11 +0530 | [diff] [blame] | 394 | static int submit_tx_urb(hfa384x_t *hw, struct urb *tx_urb, gfp_t memflags) |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 395 | { |
| 396 | struct net_device *netdev = hw->wlandev->netdev; |
| 397 | int result; |
| 398 | |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 399 | result = -ENOLINK; |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 400 | if (netif_running(netdev)) { |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 401 | |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 402 | if (!hw->wlandev->hwremoved |
| 403 | && !test_bit(WORK_TX_HALT, &hw->usb_flags)) { |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 404 | result = SUBMIT_URB(tx_urb, memflags); |
| 405 | |
| 406 | /* Test whether we need to reset the TX pipe */ |
| 407 | if (result == -EPIPE) { |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 408 | printk(KERN_WARNING |
| 409 | "%s tx pipe stalled: requesting reset\n", |
| 410 | netdev->name); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 411 | set_bit(WORK_TX_HALT, &hw->usb_flags); |
| 412 | schedule_work(&hw->usb_work); |
| 413 | } else if (result == 0) { |
| 414 | netif_stop_queue(netdev); |
| 415 | } |
| 416 | } |
| 417 | } |
| 418 | |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 419 | return result; |
| 420 | } |
| 421 | |
| 422 | /*---------------------------------------------------------------- |
| 423 | * hfa394x_usb_defer |
| 424 | * |
| 425 | * There are some things that the USB stack cannot do while |
| 426 | * in interrupt context, so we arrange this function to run |
| 427 | * in process context. |
| 428 | * |
| 429 | * Arguments: |
| 430 | * hw device structure |
| 431 | * |
| 432 | * Returns: |
| 433 | * nothing |
| 434 | * |
| 435 | * Call context: |
| 436 | * process (by design) |
| 437 | ----------------------------------------------------------------*/ |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 438 | static void hfa384x_usb_defer(struct work_struct *data) |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 439 | { |
| 440 | hfa384x_t *hw = container_of(data, struct hfa384x, usb_work); |
| 441 | struct net_device *netdev = hw->wlandev->netdev; |
| 442 | |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 443 | /* Don't bother trying to reset anything if the plug |
| 444 | * has been pulled ... |
| 445 | */ |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 446 | if (hw->wlandev->hwremoved) |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 447 | return; |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 448 | |
| 449 | /* Reception has stopped: try to reset the input pipe */ |
| 450 | if (test_bit(WORK_RX_HALT, &hw->usb_flags)) { |
| 451 | int ret; |
| 452 | |
Edgardo Hames | 631c8de | 2010-03-08 17:02:37 -0800 | [diff] [blame] | 453 | usb_kill_urb(&hw->rx_urb); /* Cannot be holding spinlock! */ |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 454 | |
| 455 | ret = usb_clear_halt(hw->usb, hw->endp_in); |
| 456 | if (ret != 0) { |
| 457 | printk(KERN_ERR |
| 458 | "Failed to clear rx pipe for %s: err=%d\n", |
| 459 | netdev->name, ret); |
| 460 | } else { |
| 461 | printk(KERN_INFO "%s rx pipe reset complete.\n", |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 462 | netdev->name); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 463 | clear_bit(WORK_RX_HALT, &hw->usb_flags); |
| 464 | set_bit(WORK_RX_RESUME, &hw->usb_flags); |
| 465 | } |
| 466 | } |
| 467 | |
| 468 | /* Resume receiving data back from the device. */ |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 469 | if (test_bit(WORK_RX_RESUME, &hw->usb_flags)) { |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 470 | int ret; |
| 471 | |
| 472 | ret = submit_rx_urb(hw, GFP_KERNEL); |
| 473 | if (ret != 0) { |
| 474 | printk(KERN_ERR |
| 475 | "Failed to resume %s rx pipe.\n", netdev->name); |
| 476 | } else { |
| 477 | clear_bit(WORK_RX_RESUME, &hw->usb_flags); |
| 478 | } |
| 479 | } |
| 480 | |
| 481 | /* Transmission has stopped: try to reset the output pipe */ |
| 482 | if (test_bit(WORK_TX_HALT, &hw->usb_flags)) { |
| 483 | int ret; |
| 484 | |
| 485 | usb_kill_urb(&hw->tx_urb); |
| 486 | ret = usb_clear_halt(hw->usb, hw->endp_out); |
| 487 | if (ret != 0) { |
| 488 | printk(KERN_ERR |
| 489 | "Failed to clear tx pipe for %s: err=%d\n", |
| 490 | netdev->name, ret); |
| 491 | } else { |
| 492 | printk(KERN_INFO "%s tx pipe reset complete.\n", |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 493 | netdev->name); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 494 | clear_bit(WORK_TX_HALT, &hw->usb_flags); |
| 495 | set_bit(WORK_TX_RESUME, &hw->usb_flags); |
| 496 | |
| 497 | /* Stopping the BULK-OUT pipe also blocked |
| 498 | * us from sending any more CTLX URBs, so |
| 499 | * we need to re-run our queue ... |
| 500 | */ |
| 501 | hfa384x_usbctlxq_run(hw); |
| 502 | } |
| 503 | } |
| 504 | |
| 505 | /* Resume transmitting. */ |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 506 | if (test_and_clear_bit(WORK_TX_RESUME, &hw->usb_flags)) |
Solomon Peachy | cbec30c | 2008-10-29 10:42:57 -0400 | [diff] [blame] | 507 | netif_wake_queue(hw->wlandev->netdev); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 508 | } |
| 509 | |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 510 | /*---------------------------------------------------------------- |
| 511 | * hfa384x_create |
| 512 | * |
| 513 | * Sets up the hfa384x_t data structure for use. Note this |
Uwe Kleine-König | 9b0131c | 2010-09-01 15:40:25 +0200 | [diff] [blame] | 514 | * does _not_ initialize the actual hardware, just the data structures |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 515 | * we use to keep track of its state. |
| 516 | * |
| 517 | * Arguments: |
| 518 | * hw device structure |
| 519 | * irq device irq number |
| 520 | * iobase i/o base address for register access |
| 521 | * membase memory base address for register access |
| 522 | * |
| 523 | * Returns: |
| 524 | * nothing |
| 525 | * |
| 526 | * Side effects: |
| 527 | * |
| 528 | * Call context: |
| 529 | * process |
| 530 | ----------------------------------------------------------------*/ |
Mithlesh Thukral | 297f06c | 2009-06-10 19:36:11 +0530 | [diff] [blame] | 531 | void hfa384x_create(hfa384x_t *hw, struct usb_device *usb) |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 532 | { |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 533 | memset(hw, 0, sizeof(hfa384x_t)); |
| 534 | hw->usb = usb; |
| 535 | |
| 536 | /* set up the endpoints */ |
| 537 | hw->endp_in = usb_rcvbulkpipe(usb, 1); |
| 538 | hw->endp_out = usb_sndbulkpipe(usb, 2); |
| 539 | |
| 540 | /* Set up the waitq */ |
| 541 | init_waitqueue_head(&hw->cmdq); |
| 542 | |
| 543 | /* Initialize the command queue */ |
| 544 | spin_lock_init(&hw->ctlxq.lock); |
| 545 | INIT_LIST_HEAD(&hw->ctlxq.pending); |
| 546 | INIT_LIST_HEAD(&hw->ctlxq.active); |
| 547 | INIT_LIST_HEAD(&hw->ctlxq.completing); |
| 548 | INIT_LIST_HEAD(&hw->ctlxq.reapable); |
| 549 | |
| 550 | /* Initialize the authentication queue */ |
| 551 | skb_queue_head_init(&hw->authq); |
| 552 | |
| 553 | tasklet_init(&hw->reaper_bh, |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 554 | hfa384x_usbctlx_reaper_task, (unsigned long)hw); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 555 | tasklet_init(&hw->completion_bh, |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 556 | hfa384x_usbctlx_completion_task, (unsigned long)hw); |
Solomon Peachy | 575a8a5 | 2008-10-29 10:42:54 -0400 | [diff] [blame] | 557 | INIT_WORK(&hw->link_bh, prism2sta_processing_defer); |
| 558 | INIT_WORK(&hw->usb_work, hfa384x_usb_defer); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 559 | |
| 560 | init_timer(&hw->throttle); |
| 561 | hw->throttle.function = hfa384x_usb_throttlefn; |
| 562 | hw->throttle.data = (unsigned long)hw; |
| 563 | |
| 564 | init_timer(&hw->resptimer); |
| 565 | hw->resptimer.function = hfa384x_usbctlx_resptimerfn; |
| 566 | hw->resptimer.data = (unsigned long)hw; |
| 567 | |
| 568 | init_timer(&hw->reqtimer); |
| 569 | hw->reqtimer.function = hfa384x_usbctlx_reqtimerfn; |
| 570 | hw->reqtimer.data = (unsigned long)hw; |
| 571 | |
| 572 | usb_init_urb(&hw->rx_urb); |
| 573 | usb_init_urb(&hw->tx_urb); |
| 574 | usb_init_urb(&hw->ctlx_urb); |
| 575 | |
| 576 | hw->link_status = HFA384x_LINK_NOTCONNECTED; |
| 577 | hw->state = HFA384x_STATE_INIT; |
| 578 | |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 579 | INIT_WORK(&hw->commsqual_bh, prism2sta_commsqual_defer); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 580 | init_timer(&hw->commsqual_timer); |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 581 | hw->commsqual_timer.data = (unsigned long)hw; |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 582 | hw->commsqual_timer.function = prism2sta_commsqual_timer; |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 583 | } |
| 584 | |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 585 | /*---------------------------------------------------------------- |
| 586 | * hfa384x_destroy |
| 587 | * |
| 588 | * Partner to hfa384x_create(). This function cleans up the hw |
| 589 | * structure so that it can be freed by the caller using a simple |
| 590 | * kfree. Currently, this function is just a placeholder. If, at some |
| 591 | * point in the future, an hw in the 'shutdown' state requires a 'deep' |
| 592 | * kfree, this is where it should be done. Note that if this function |
| 593 | * is called on a _running_ hw structure, the drvr_stop() function is |
| 594 | * called. |
| 595 | * |
| 596 | * Arguments: |
| 597 | * hw device structure |
| 598 | * |
| 599 | * Returns: |
| 600 | * nothing, this function is not allowed to fail. |
| 601 | * |
| 602 | * Side effects: |
| 603 | * |
| 604 | * Call context: |
| 605 | * process |
| 606 | ----------------------------------------------------------------*/ |
Mithlesh Thukral | 297f06c | 2009-06-10 19:36:11 +0530 | [diff] [blame] | 607 | void hfa384x_destroy(hfa384x_t *hw) |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 608 | { |
| 609 | struct sk_buff *skb; |
| 610 | |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 611 | if (hw->state == HFA384x_STATE_RUNNING) |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 612 | hfa384x_drvr_stop(hw); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 613 | hw->state = HFA384x_STATE_PREINIT; |
| 614 | |
Ilia Mirkin | a6f9c48 | 2011-03-13 00:29:17 -0500 | [diff] [blame] | 615 | kfree(hw->scanresults); |
| 616 | hw->scanresults = NULL; |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 617 | |
| 618 | /* Now to clean out the auth queue */ |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 619 | while ((skb = skb_dequeue(&hw->authq))) |
| 620 | dev_kfree_skb(skb); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 621 | } |
| 622 | |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 623 | static hfa384x_usbctlx_t *usbctlx_alloc(void) |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 624 | { |
| 625 | hfa384x_usbctlx_t *ctlx; |
| 626 | |
Svenne Krap | 5dd8acc | 2010-02-14 18:59:00 +0100 | [diff] [blame] | 627 | ctlx = kmalloc(sizeof(*ctlx), in_interrupt() ? GFP_ATOMIC : GFP_KERNEL); |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 628 | if (ctlx != NULL) { |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 629 | memset(ctlx, 0, sizeof(*ctlx)); |
| 630 | init_completion(&ctlx->done); |
| 631 | } |
| 632 | |
| 633 | return ctlx; |
| 634 | } |
| 635 | |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 636 | static int |
Mithlesh Thukral | 297f06c | 2009-06-10 19:36:11 +0530 | [diff] [blame] | 637 | usbctlx_get_status(const hfa384x_usb_cmdresp_t *cmdresp, |
| 638 | hfa384x_cmdresult_t *result) |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 639 | { |
Moritz Muehlenhoff | 18c7f79 | 2009-02-18 19:50:07 +0100 | [diff] [blame] | 640 | result->status = le16_to_cpu(cmdresp->status); |
| 641 | result->resp0 = le16_to_cpu(cmdresp->resp0); |
| 642 | result->resp1 = le16_to_cpu(cmdresp->resp1); |
| 643 | result->resp2 = le16_to_cpu(cmdresp->resp2); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 644 | |
Moritz Muehlenhoff | a7cf7ba | 2009-02-08 02:01:00 +0100 | [diff] [blame] | 645 | pr_debug("cmdresult:status=0x%04x " |
Mithlesh Thukral | 75f49e0 | 2009-05-25 19:06:16 +0530 | [diff] [blame] | 646 | "resp0=0x%04x resp1=0x%04x resp2=0x%04x\n", |
| 647 | result->status, result->resp0, result->resp1, result->resp2); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 648 | |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 649 | return result->status & HFA384x_STATUS_RESULT; |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 650 | } |
| 651 | |
| 652 | static void |
Mithlesh Thukral | 297f06c | 2009-06-10 19:36:11 +0530 | [diff] [blame] | 653 | usbctlx_get_rridresult(const hfa384x_usb_rridresp_t *rridresp, |
| 654 | hfa384x_rridresult_t *result) |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 655 | { |
Moritz Muehlenhoff | 18c7f79 | 2009-02-18 19:50:07 +0100 | [diff] [blame] | 656 | result->rid = le16_to_cpu(rridresp->rid); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 657 | result->riddata = rridresp->data; |
Moritz Muehlenhoff | 18c7f79 | 2009-02-18 19:50:07 +0100 | [diff] [blame] | 658 | result->riddata_len = ((le16_to_cpu(rridresp->frmlen) - 1) * 2); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 659 | |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 660 | } |
| 661 | |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 662 | /*---------------------------------------------------------------- |
| 663 | * Completor object: |
| 664 | * This completor must be passed to hfa384x_usbctlx_complete_sync() |
| 665 | * when processing a CTLX that returns a hfa384x_cmdresult_t structure. |
| 666 | ----------------------------------------------------------------*/ |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 667 | struct usbctlx_cmd_completor { |
Edgardo Hames | 631c8de | 2010-03-08 17:02:37 -0800 | [diff] [blame] | 668 | struct usbctlx_completor head; |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 669 | |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 670 | const hfa384x_usb_cmdresp_t *cmdresp; |
| 671 | hfa384x_cmdresult_t *result; |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 672 | }; |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 673 | |
Edgardo Hames | 631c8de | 2010-03-08 17:02:37 -0800 | [diff] [blame] | 674 | static inline int usbctlx_cmd_completor_fn(struct usbctlx_completor *head) |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 675 | { |
Edgardo Hames | 631c8de | 2010-03-08 17:02:37 -0800 | [diff] [blame] | 676 | struct usbctlx_cmd_completor *complete; |
| 677 | |
| 678 | complete = (struct usbctlx_cmd_completor *) head; |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 679 | return usbctlx_get_status(complete->cmdresp, complete->result); |
| 680 | } |
| 681 | |
Edgardo Hames | 631c8de | 2010-03-08 17:02:37 -0800 | [diff] [blame] | 682 | static inline struct usbctlx_completor *init_cmd_completor( |
| 683 | struct usbctlx_cmd_completor |
| 684 | *completor, |
| 685 | const hfa384x_usb_cmdresp_t |
| 686 | *cmdresp, |
| 687 | hfa384x_cmdresult_t *result) |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 688 | { |
| 689 | completor->head.complete = usbctlx_cmd_completor_fn; |
| 690 | completor->cmdresp = cmdresp; |
| 691 | completor->result = result; |
| 692 | return &(completor->head); |
| 693 | } |
| 694 | |
| 695 | /*---------------------------------------------------------------- |
| 696 | * Completor object: |
| 697 | * This completor must be passed to hfa384x_usbctlx_complete_sync() |
| 698 | * when processing a CTLX that reads a RID. |
| 699 | ----------------------------------------------------------------*/ |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 700 | struct usbctlx_rrid_completor { |
Edgardo Hames | 631c8de | 2010-03-08 17:02:37 -0800 | [diff] [blame] | 701 | struct usbctlx_completor head; |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 702 | |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 703 | const hfa384x_usb_rridresp_t *rridresp; |
| 704 | void *riddata; |
| 705 | unsigned int riddatalen; |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 706 | }; |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 707 | |
Edgardo Hames | 631c8de | 2010-03-08 17:02:37 -0800 | [diff] [blame] | 708 | static int usbctlx_rrid_completor_fn(struct usbctlx_completor *head) |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 709 | { |
Edgardo Hames | 631c8de | 2010-03-08 17:02:37 -0800 | [diff] [blame] | 710 | struct usbctlx_rrid_completor *complete; |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 711 | hfa384x_rridresult_t rridresult; |
| 712 | |
Edgardo Hames | 631c8de | 2010-03-08 17:02:37 -0800 | [diff] [blame] | 713 | complete = (struct usbctlx_rrid_completor *) head; |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 714 | usbctlx_get_rridresult(complete->rridresp, &rridresult); |
| 715 | |
| 716 | /* Validate the length, note body len calculation in bytes */ |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 717 | if (rridresult.riddata_len != complete->riddatalen) { |
Moritz Muehlenhoff | 9b9556e | 2009-01-25 21:55:01 +0100 | [diff] [blame] | 718 | printk(KERN_WARNING |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 719 | "RID len mismatch, rid=0x%04x hlen=%d fwlen=%d\n", |
| 720 | rridresult.rid, |
| 721 | complete->riddatalen, rridresult.riddata_len); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 722 | return -ENODATA; |
| 723 | } |
| 724 | |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 725 | memcpy(complete->riddata, rridresult.riddata, complete->riddatalen); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 726 | return 0; |
| 727 | } |
| 728 | |
Edgardo Hames | 631c8de | 2010-03-08 17:02:37 -0800 | [diff] [blame] | 729 | static inline struct usbctlx_completor *init_rrid_completor( |
| 730 | struct usbctlx_rrid_completor |
| 731 | *completor, |
| 732 | const hfa384x_usb_rridresp_t |
| 733 | *rridresp, |
| 734 | void *riddata, |
| 735 | unsigned int riddatalen) |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 736 | { |
| 737 | completor->head.complete = usbctlx_rrid_completor_fn; |
| 738 | completor->rridresp = rridresp; |
| 739 | completor->riddata = riddata; |
| 740 | completor->riddatalen = riddatalen; |
| 741 | return &(completor->head); |
| 742 | } |
| 743 | |
| 744 | /*---------------------------------------------------------------- |
| 745 | * Completor object: |
| 746 | * Interprets the results of a synchronous RID-write |
| 747 | ----------------------------------------------------------------*/ |
Edgardo Hames | 631c8de | 2010-03-08 17:02:37 -0800 | [diff] [blame] | 748 | typedef struct usbctlx_cmd_completor usbctlx_wrid_completor_t; |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 749 | #define init_wrid_completor init_cmd_completor |
| 750 | |
| 751 | /*---------------------------------------------------------------- |
| 752 | * Completor object: |
| 753 | * Interprets the results of a synchronous memory-write |
| 754 | ----------------------------------------------------------------*/ |
Edgardo Hames | 631c8de | 2010-03-08 17:02:37 -0800 | [diff] [blame] | 755 | typedef struct usbctlx_cmd_completor usbctlx_wmem_completor_t; |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 756 | #define init_wmem_completor init_cmd_completor |
| 757 | |
| 758 | /*---------------------------------------------------------------- |
| 759 | * Completor object: |
| 760 | * Interprets the results of a synchronous memory-read |
| 761 | ----------------------------------------------------------------*/ |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 762 | struct usbctlx_rmem_completor { |
Edgardo Hames | 631c8de | 2010-03-08 17:02:37 -0800 | [diff] [blame] | 763 | struct usbctlx_completor head; |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 764 | |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 765 | const hfa384x_usb_rmemresp_t *rmemresp; |
| 766 | void *data; |
| 767 | unsigned int len; |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 768 | }; |
| 769 | typedef struct usbctlx_rmem_completor usbctlx_rmem_completor_t; |
| 770 | |
Edgardo Hames | 631c8de | 2010-03-08 17:02:37 -0800 | [diff] [blame] | 771 | static int usbctlx_rmem_completor_fn(struct usbctlx_completor *head) |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 772 | { |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 773 | usbctlx_rmem_completor_t *complete = (usbctlx_rmem_completor_t *) head; |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 774 | |
Moritz Muehlenhoff | a7cf7ba | 2009-02-08 02:01:00 +0100 | [diff] [blame] | 775 | pr_debug("rmemresp:len=%d\n", complete->rmemresp->frmlen); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 776 | memcpy(complete->data, complete->rmemresp->data, complete->len); |
| 777 | return 0; |
| 778 | } |
| 779 | |
Edgardo Hames | 631c8de | 2010-03-08 17:02:37 -0800 | [diff] [blame] | 780 | static inline struct usbctlx_completor *init_rmem_completor( |
| 781 | usbctlx_rmem_completor_t |
| 782 | *completor, |
| 783 | hfa384x_usb_rmemresp_t |
| 784 | *rmemresp, |
| 785 | void *data, |
| 786 | unsigned int len) |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 787 | { |
| 788 | completor->head.complete = usbctlx_rmem_completor_fn; |
| 789 | completor->rmemresp = rmemresp; |
| 790 | completor->data = data; |
| 791 | completor->len = len; |
| 792 | return &(completor->head); |
| 793 | } |
| 794 | |
| 795 | /*---------------------------------------------------------------- |
| 796 | * hfa384x_cb_status |
| 797 | * |
| 798 | * Ctlx_complete handler for async CMD type control exchanges. |
| 799 | * mark the hw struct as such. |
| 800 | * |
| 801 | * Note: If the handling is changed here, it should probably be |
| 802 | * changed in docmd as well. |
| 803 | * |
| 804 | * Arguments: |
| 805 | * hw hw struct |
| 806 | * ctlx completed CTLX |
| 807 | * |
| 808 | * Returns: |
| 809 | * nothing |
| 810 | * |
| 811 | * Side effects: |
| 812 | * |
| 813 | * Call context: |
| 814 | * interrupt |
| 815 | ----------------------------------------------------------------*/ |
Mithlesh Thukral | 297f06c | 2009-06-10 19:36:11 +0530 | [diff] [blame] | 816 | static void hfa384x_cb_status(hfa384x_t *hw, const hfa384x_usbctlx_t *ctlx) |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 817 | { |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 818 | if (ctlx->usercb != NULL) { |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 819 | hfa384x_cmdresult_t cmdresult; |
| 820 | |
| 821 | if (ctlx->state != CTLX_COMPLETE) { |
| 822 | memset(&cmdresult, 0, sizeof(cmdresult)); |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 823 | cmdresult.status = |
| 824 | HFA384x_STATUS_RESULT_SET(HFA384x_CMD_ERR); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 825 | } else { |
| 826 | usbctlx_get_status(&ctlx->inbuf.cmdresp, &cmdresult); |
| 827 | } |
| 828 | |
| 829 | ctlx->usercb(hw, &cmdresult, ctlx->usercb_data); |
| 830 | } |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 831 | } |
| 832 | |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 833 | /*---------------------------------------------------------------- |
| 834 | * hfa384x_cb_rrid |
| 835 | * |
| 836 | * CTLX completion handler for async RRID type control exchanges. |
| 837 | * |
| 838 | * Note: If the handling is changed here, it should probably be |
| 839 | * changed in dorrid as well. |
| 840 | * |
| 841 | * Arguments: |
| 842 | * hw hw struct |
| 843 | * ctlx completed CTLX |
| 844 | * |
| 845 | * Returns: |
| 846 | * nothing |
| 847 | * |
| 848 | * Side effects: |
| 849 | * |
| 850 | * Call context: |
| 851 | * interrupt |
| 852 | ----------------------------------------------------------------*/ |
Mithlesh Thukral | 297f06c | 2009-06-10 19:36:11 +0530 | [diff] [blame] | 853 | static void hfa384x_cb_rrid(hfa384x_t *hw, const hfa384x_usbctlx_t *ctlx) |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 854 | { |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 855 | if (ctlx->usercb != NULL) { |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 856 | hfa384x_rridresult_t rridresult; |
| 857 | |
| 858 | if (ctlx->state != CTLX_COMPLETE) { |
| 859 | memset(&rridresult, 0, sizeof(rridresult)); |
Mithlesh Thukral | 75f49e0 | 2009-05-25 19:06:16 +0530 | [diff] [blame] | 860 | rridresult.rid = le16_to_cpu(ctlx->outbuf.rridreq.rid); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 861 | } else { |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 862 | usbctlx_get_rridresult(&ctlx->inbuf.rridresp, |
| 863 | &rridresult); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 864 | } |
| 865 | |
| 866 | ctlx->usercb(hw, &rridresult, ctlx->usercb_data); |
| 867 | } |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 868 | } |
| 869 | |
Mithlesh Thukral | 297f06c | 2009-06-10 19:36:11 +0530 | [diff] [blame] | 870 | static inline int hfa384x_docmd_wait(hfa384x_t *hw, hfa384x_metacmd_t *cmd) |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 871 | { |
| 872 | return hfa384x_docmd(hw, DOWAIT, cmd, NULL, NULL, NULL); |
| 873 | } |
| 874 | |
| 875 | static inline int |
Mithlesh Thukral | 297f06c | 2009-06-10 19:36:11 +0530 | [diff] [blame] | 876 | hfa384x_docmd_async(hfa384x_t *hw, |
| 877 | hfa384x_metacmd_t *cmd, |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 878 | ctlx_cmdcb_t cmdcb, ctlx_usercb_t usercb, void *usercb_data) |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 879 | { |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 880 | return hfa384x_docmd(hw, DOASYNC, cmd, cmdcb, usercb, usercb_data); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 881 | } |
| 882 | |
| 883 | static inline int |
Mithlesh Thukral | 297f06c | 2009-06-10 19:36:11 +0530 | [diff] [blame] | 884 | hfa384x_dorrid_wait(hfa384x_t *hw, u16 rid, void *riddata, |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 885 | unsigned int riddatalen) |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 886 | { |
| 887 | return hfa384x_dorrid(hw, DOWAIT, |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 888 | rid, riddata, riddatalen, NULL, NULL, NULL); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 889 | } |
| 890 | |
| 891 | static inline int |
Mithlesh Thukral | 297f06c | 2009-06-10 19:36:11 +0530 | [diff] [blame] | 892 | hfa384x_dorrid_async(hfa384x_t *hw, |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 893 | u16 rid, void *riddata, unsigned int riddatalen, |
| 894 | ctlx_cmdcb_t cmdcb, |
| 895 | ctlx_usercb_t usercb, void *usercb_data) |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 896 | { |
| 897 | return hfa384x_dorrid(hw, DOASYNC, |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 898 | rid, riddata, riddatalen, |
| 899 | cmdcb, usercb, usercb_data); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 900 | } |
| 901 | |
| 902 | static inline int |
Mithlesh Thukral | 297f06c | 2009-06-10 19:36:11 +0530 | [diff] [blame] | 903 | hfa384x_dowrid_wait(hfa384x_t *hw, u16 rid, void *riddata, |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 904 | unsigned int riddatalen) |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 905 | { |
| 906 | return hfa384x_dowrid(hw, DOWAIT, |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 907 | rid, riddata, riddatalen, NULL, NULL, NULL); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 908 | } |
| 909 | |
| 910 | static inline int |
Mithlesh Thukral | 297f06c | 2009-06-10 19:36:11 +0530 | [diff] [blame] | 911 | hfa384x_dowrid_async(hfa384x_t *hw, |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 912 | u16 rid, void *riddata, unsigned int riddatalen, |
| 913 | ctlx_cmdcb_t cmdcb, |
| 914 | ctlx_usercb_t usercb, void *usercb_data) |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 915 | { |
| 916 | return hfa384x_dowrid(hw, DOASYNC, |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 917 | rid, riddata, riddatalen, |
| 918 | cmdcb, usercb, usercb_data); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 919 | } |
| 920 | |
| 921 | static inline int |
Mithlesh Thukral | 297f06c | 2009-06-10 19:36:11 +0530 | [diff] [blame] | 922 | hfa384x_dormem_wait(hfa384x_t *hw, |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 923 | u16 page, u16 offset, void *data, unsigned int len) |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 924 | { |
| 925 | return hfa384x_dormem(hw, DOWAIT, |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 926 | page, offset, data, len, NULL, NULL, NULL); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 927 | } |
| 928 | |
| 929 | static inline int |
Mithlesh Thukral | 297f06c | 2009-06-10 19:36:11 +0530 | [diff] [blame] | 930 | hfa384x_dormem_async(hfa384x_t *hw, |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 931 | u16 page, u16 offset, void *data, unsigned int len, |
| 932 | ctlx_cmdcb_t cmdcb, |
| 933 | ctlx_usercb_t usercb, void *usercb_data) |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 934 | { |
| 935 | return hfa384x_dormem(hw, DOASYNC, |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 936 | page, offset, data, len, |
| 937 | cmdcb, usercb, usercb_data); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 938 | } |
| 939 | |
| 940 | static inline int |
Mithlesh Thukral | 297f06c | 2009-06-10 19:36:11 +0530 | [diff] [blame] | 941 | hfa384x_dowmem_wait(hfa384x_t *hw, |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 942 | u16 page, u16 offset, void *data, unsigned int len) |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 943 | { |
| 944 | return hfa384x_dowmem(hw, DOWAIT, |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 945 | page, offset, data, len, NULL, NULL, NULL); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 946 | } |
| 947 | |
| 948 | static inline int |
Mithlesh Thukral | 297f06c | 2009-06-10 19:36:11 +0530 | [diff] [blame] | 949 | hfa384x_dowmem_async(hfa384x_t *hw, |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 950 | u16 page, |
| 951 | u16 offset, |
| 952 | void *data, |
| 953 | unsigned int len, |
| 954 | ctlx_cmdcb_t cmdcb, |
| 955 | ctlx_usercb_t usercb, void *usercb_data) |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 956 | { |
| 957 | return hfa384x_dowmem(hw, DOASYNC, |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 958 | page, offset, data, len, |
| 959 | cmdcb, usercb, usercb_data); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 960 | } |
| 961 | |
| 962 | /*---------------------------------------------------------------- |
| 963 | * hfa384x_cmd_initialize |
| 964 | * |
| 965 | * Issues the initialize command and sets the hw->state based |
| 966 | * on the result. |
| 967 | * |
| 968 | * Arguments: |
| 969 | * hw device structure |
| 970 | * |
| 971 | * Returns: |
| 972 | * 0 success |
| 973 | * >0 f/w reported error - f/w status code |
| 974 | * <0 driver reported error |
| 975 | * |
| 976 | * Side effects: |
| 977 | * |
| 978 | * Call context: |
| 979 | * process |
| 980 | ----------------------------------------------------------------*/ |
Mithlesh Thukral | 297f06c | 2009-06-10 19:36:11 +0530 | [diff] [blame] | 981 | int hfa384x_cmd_initialize(hfa384x_t *hw) |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 982 | { |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 983 | int result = 0; |
| 984 | int i; |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 985 | hfa384x_metacmd_t cmd; |
| 986 | |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 987 | cmd.cmd = HFA384x_CMDCODE_INIT; |
| 988 | cmd.parm0 = 0; |
| 989 | cmd.parm1 = 0; |
| 990 | cmd.parm2 = 0; |
| 991 | |
| 992 | result = hfa384x_docmd_wait(hw, &cmd); |
| 993 | |
Moritz Muehlenhoff | a7cf7ba | 2009-02-08 02:01:00 +0100 | [diff] [blame] | 994 | pr_debug("cmdresp.init: " |
Mithlesh Thukral | 75f49e0 | 2009-05-25 19:06:16 +0530 | [diff] [blame] | 995 | "status=0x%04x, resp0=0x%04x, " |
| 996 | "resp1=0x%04x, resp2=0x%04x\n", |
| 997 | cmd.result.status, |
| 998 | cmd.result.resp0, cmd.result.resp1, cmd.result.resp2); |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 999 | if (result == 0) { |
| 1000 | for (i = 0; i < HFA384x_NUMPORTS_MAX; i++) |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1001 | hw->port_enabled[i] = 0; |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1002 | } |
| 1003 | |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 1004 | hw->link_status = HFA384x_LINK_NOTCONNECTED; |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1005 | |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1006 | return result; |
| 1007 | } |
| 1008 | |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1009 | /*---------------------------------------------------------------- |
| 1010 | * hfa384x_cmd_disable |
| 1011 | * |
| 1012 | * Issues the disable command to stop communications on one of |
| 1013 | * the MACs 'ports'. |
| 1014 | * |
| 1015 | * Arguments: |
| 1016 | * hw device structure |
| 1017 | * macport MAC port number (host order) |
| 1018 | * |
| 1019 | * Returns: |
| 1020 | * 0 success |
| 1021 | * >0 f/w reported failure - f/w status code |
| 1022 | * <0 driver reported error (timeout|bad arg) |
| 1023 | * |
| 1024 | * Side effects: |
| 1025 | * |
| 1026 | * Call context: |
| 1027 | * process |
| 1028 | ----------------------------------------------------------------*/ |
Mithlesh Thukral | 297f06c | 2009-06-10 19:36:11 +0530 | [diff] [blame] | 1029 | int hfa384x_cmd_disable(hfa384x_t *hw, u16 macport) |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1030 | { |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 1031 | int result = 0; |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1032 | hfa384x_metacmd_t cmd; |
| 1033 | |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1034 | cmd.cmd = HFA384x_CMD_CMDCODE_SET(HFA384x_CMDCODE_DISABLE) | |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 1035 | HFA384x_CMD_MACPORT_SET(macport); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1036 | cmd.parm0 = 0; |
| 1037 | cmd.parm1 = 0; |
| 1038 | cmd.parm2 = 0; |
| 1039 | |
| 1040 | result = hfa384x_docmd_wait(hw, &cmd); |
| 1041 | |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1042 | return result; |
| 1043 | } |
| 1044 | |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1045 | /*---------------------------------------------------------------- |
| 1046 | * hfa384x_cmd_enable |
| 1047 | * |
| 1048 | * Issues the enable command to enable communications on one of |
| 1049 | * the MACs 'ports'. |
| 1050 | * |
| 1051 | * Arguments: |
| 1052 | * hw device structure |
| 1053 | * macport MAC port number |
| 1054 | * |
| 1055 | * Returns: |
| 1056 | * 0 success |
| 1057 | * >0 f/w reported failure - f/w status code |
| 1058 | * <0 driver reported error (timeout|bad arg) |
| 1059 | * |
| 1060 | * Side effects: |
| 1061 | * |
| 1062 | * Call context: |
| 1063 | * process |
| 1064 | ----------------------------------------------------------------*/ |
Mithlesh Thukral | 297f06c | 2009-06-10 19:36:11 +0530 | [diff] [blame] | 1065 | int hfa384x_cmd_enable(hfa384x_t *hw, u16 macport) |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1066 | { |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 1067 | int result = 0; |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1068 | hfa384x_metacmd_t cmd; |
| 1069 | |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1070 | cmd.cmd = HFA384x_CMD_CMDCODE_SET(HFA384x_CMDCODE_ENABLE) | |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 1071 | HFA384x_CMD_MACPORT_SET(macport); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1072 | cmd.parm0 = 0; |
| 1073 | cmd.parm1 = 0; |
| 1074 | cmd.parm2 = 0; |
| 1075 | |
| 1076 | result = hfa384x_docmd_wait(hw, &cmd); |
| 1077 | |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1078 | return result; |
| 1079 | } |
| 1080 | |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1081 | /*---------------------------------------------------------------- |
| 1082 | * hfa384x_cmd_monitor |
| 1083 | * |
| 1084 | * Enables the 'monitor mode' of the MAC. Here's the description of |
| 1085 | * monitor mode that I've received thus far: |
| 1086 | * |
| 1087 | * "The "monitor mode" of operation is that the MAC passes all |
| 1088 | * frames for which the PLCP checks are correct. All received |
| 1089 | * MPDUs are passed to the host with MAC Port = 7, with a |
| 1090 | * receive status of good, FCS error, or undecryptable. Passing |
| 1091 | * certain MPDUs is a violation of the 802.11 standard, but useful |
| 1092 | * for a debugging tool." Normal communication is not possible |
| 1093 | * while monitor mode is enabled. |
| 1094 | * |
| 1095 | * Arguments: |
| 1096 | * hw device structure |
| 1097 | * enable a code (0x0b|0x0f) that enables/disables |
| 1098 | * monitor mode. (host order) |
| 1099 | * |
| 1100 | * Returns: |
| 1101 | * 0 success |
| 1102 | * >0 f/w reported failure - f/w status code |
| 1103 | * <0 driver reported error (timeout|bad arg) |
| 1104 | * |
| 1105 | * Side effects: |
| 1106 | * |
| 1107 | * Call context: |
| 1108 | * process |
| 1109 | ----------------------------------------------------------------*/ |
Mithlesh Thukral | 297f06c | 2009-06-10 19:36:11 +0530 | [diff] [blame] | 1110 | int hfa384x_cmd_monitor(hfa384x_t *hw, u16 enable) |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1111 | { |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 1112 | int result = 0; |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1113 | hfa384x_metacmd_t cmd; |
| 1114 | |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1115 | cmd.cmd = HFA384x_CMD_CMDCODE_SET(HFA384x_CMDCODE_MONITOR) | |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 1116 | HFA384x_CMD_AINFO_SET(enable); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1117 | cmd.parm0 = 0; |
| 1118 | cmd.parm1 = 0; |
| 1119 | cmd.parm2 = 0; |
| 1120 | |
| 1121 | result = hfa384x_docmd_wait(hw, &cmd); |
| 1122 | |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1123 | return result; |
| 1124 | } |
| 1125 | |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1126 | /*---------------------------------------------------------------- |
| 1127 | * hfa384x_cmd_download |
| 1128 | * |
| 1129 | * Sets the controls for the MAC controller code/data download |
| 1130 | * process. The arguments set the mode and address associated |
| 1131 | * with a download. Note that the aux registers should be enabled |
| 1132 | * prior to setting one of the download enable modes. |
| 1133 | * |
| 1134 | * Arguments: |
| 1135 | * hw device structure |
| 1136 | * mode 0 - Disable programming and begin code exec |
| 1137 | * 1 - Enable volatile mem programming |
| 1138 | * 2 - Enable non-volatile mem programming |
| 1139 | * 3 - Program non-volatile section from NV download |
| 1140 | * buffer. |
| 1141 | * (host order) |
| 1142 | * lowaddr |
| 1143 | * highaddr For mode 1, sets the high & low order bits of |
| 1144 | * the "destination address". This address will be |
| 1145 | * the execution start address when download is |
| 1146 | * subsequently disabled. |
| 1147 | * For mode 2, sets the high & low order bits of |
| 1148 | * the destination in NV ram. |
| 1149 | * For modes 0 & 3, should be zero. (host order) |
| 1150 | * NOTE: these are CMD format. |
| 1151 | * codelen Length of the data to write in mode 2, |
| 1152 | * zero otherwise. (host order) |
| 1153 | * |
| 1154 | * Returns: |
| 1155 | * 0 success |
| 1156 | * >0 f/w reported failure - f/w status code |
| 1157 | * <0 driver reported error (timeout|bad arg) |
| 1158 | * |
| 1159 | * Side effects: |
| 1160 | * |
| 1161 | * Call context: |
| 1162 | * process |
| 1163 | ----------------------------------------------------------------*/ |
Mithlesh Thukral | 297f06c | 2009-06-10 19:36:11 +0530 | [diff] [blame] | 1164 | int hfa384x_cmd_download(hfa384x_t *hw, u16 mode, u16 lowaddr, |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 1165 | u16 highaddr, u16 codelen) |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1166 | { |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 1167 | int result = 0; |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1168 | hfa384x_metacmd_t cmd; |
| 1169 | |
Mithlesh Thukral | 75f49e0 | 2009-05-25 19:06:16 +0530 | [diff] [blame] | 1170 | pr_debug("mode=%d, lowaddr=0x%04x, highaddr=0x%04x, codelen=%d\n", |
| 1171 | mode, lowaddr, highaddr, codelen); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1172 | |
| 1173 | cmd.cmd = (HFA384x_CMD_CMDCODE_SET(HFA384x_CMDCODE_DOWNLD) | |
| 1174 | HFA384x_CMD_PROGMODE_SET(mode)); |
| 1175 | |
| 1176 | cmd.parm0 = lowaddr; |
| 1177 | cmd.parm1 = highaddr; |
| 1178 | cmd.parm2 = codelen; |
| 1179 | |
| 1180 | result = hfa384x_docmd_wait(hw, &cmd); |
| 1181 | |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1182 | return result; |
| 1183 | } |
| 1184 | |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1185 | /*---------------------------------------------------------------- |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1186 | * hfa384x_corereset |
| 1187 | * |
| 1188 | * Perform a reset of the hfa38xx MAC core. We assume that the hw |
| 1189 | * structure is in its "created" state. That is, it is initialized |
| 1190 | * with proper values. Note that if a reset is done after the |
| 1191 | * device has been active for awhile, the caller might have to clean |
| 1192 | * up some leftover cruft in the hw structure. |
| 1193 | * |
| 1194 | * Arguments: |
| 1195 | * hw device structure |
| 1196 | * holdtime how long (in ms) to hold the reset |
| 1197 | * settletime how long (in ms) to wait after releasing |
| 1198 | * the reset |
| 1199 | * |
| 1200 | * Returns: |
| 1201 | * nothing |
| 1202 | * |
| 1203 | * Side effects: |
| 1204 | * |
| 1205 | * Call context: |
| 1206 | * process |
| 1207 | ----------------------------------------------------------------*/ |
Mithlesh Thukral | 297f06c | 2009-06-10 19:36:11 +0530 | [diff] [blame] | 1208 | int hfa384x_corereset(hfa384x_t *hw, int holdtime, int settletime, int genesis) |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1209 | { |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 1210 | int result = 0; |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1211 | |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 1212 | result = usb_reset_device(hw->usb); |
| 1213 | if (result < 0) { |
| 1214 | printk(KERN_ERR "usb_reset_device() failed, result=%d.\n", |
| 1215 | result); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1216 | } |
| 1217 | |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1218 | return result; |
| 1219 | } |
| 1220 | |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1221 | /*---------------------------------------------------------------- |
| 1222 | * hfa384x_usbctlx_complete_sync |
| 1223 | * |
| 1224 | * Waits for a synchronous CTLX object to complete, |
| 1225 | * and then handles the response. |
| 1226 | * |
| 1227 | * Arguments: |
| 1228 | * hw device structure |
Edgardo Hames | 631c8de | 2010-03-08 17:02:37 -0800 | [diff] [blame] | 1229 | * ctlx CTLX ptr |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1230 | * completor functor object to decide what to |
| 1231 | * do with the CTLX's result. |
| 1232 | * |
| 1233 | * Returns: |
| 1234 | * 0 Success |
| 1235 | * -ERESTARTSYS Interrupted by a signal |
| 1236 | * -EIO CTLX failed |
| 1237 | * -ENODEV Adapter was unplugged |
| 1238 | * ??? Result from completor |
| 1239 | * |
| 1240 | * Side effects: |
| 1241 | * |
| 1242 | * Call context: |
| 1243 | * process |
| 1244 | ----------------------------------------------------------------*/ |
Mithlesh Thukral | 297f06c | 2009-06-10 19:36:11 +0530 | [diff] [blame] | 1245 | static int hfa384x_usbctlx_complete_sync(hfa384x_t *hw, |
| 1246 | hfa384x_usbctlx_t *ctlx, |
Edgardo Hames | 631c8de | 2010-03-08 17:02:37 -0800 | [diff] [blame] | 1247 | struct usbctlx_completor *completor) |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1248 | { |
| 1249 | unsigned long flags; |
| 1250 | int result; |
| 1251 | |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1252 | result = wait_for_completion_interruptible(&ctlx->done); |
| 1253 | |
| 1254 | spin_lock_irqsave(&hw->ctlxq.lock, flags); |
| 1255 | |
| 1256 | /* |
| 1257 | * We can only handle the CTLX if the USB disconnect |
| 1258 | * function has not run yet ... |
| 1259 | */ |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 1260 | cleanup: |
| 1261 | if (hw->wlandev->hwremoved) { |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1262 | spin_unlock_irqrestore(&hw->ctlxq.lock, flags); |
| 1263 | result = -ENODEV; |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 1264 | } else if (result != 0) { |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1265 | int runqueue = 0; |
| 1266 | |
| 1267 | /* |
| 1268 | * We were probably interrupted, so delete |
| 1269 | * this CTLX asynchronously, kill the timers |
| 1270 | * and the URB, and then start the next |
| 1271 | * pending CTLX. |
| 1272 | * |
| 1273 | * NOTE: We can only delete the timers and |
| 1274 | * the URB if this CTLX is active. |
| 1275 | */ |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 1276 | if (ctlx == get_active_ctlx(hw)) { |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1277 | spin_unlock_irqrestore(&hw->ctlxq.lock, flags); |
| 1278 | |
| 1279 | del_singleshot_timer_sync(&hw->reqtimer); |
| 1280 | del_singleshot_timer_sync(&hw->resptimer); |
| 1281 | hw->req_timer_done = 1; |
| 1282 | hw->resp_timer_done = 1; |
| 1283 | usb_kill_urb(&hw->ctlx_urb); |
| 1284 | |
| 1285 | spin_lock_irqsave(&hw->ctlxq.lock, flags); |
| 1286 | |
| 1287 | runqueue = 1; |
| 1288 | |
| 1289 | /* |
| 1290 | * This scenario is so unlikely that I'm |
| 1291 | * happy with a grubby "goto" solution ... |
| 1292 | */ |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 1293 | if (hw->wlandev->hwremoved) |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1294 | goto cleanup; |
| 1295 | } |
| 1296 | |
| 1297 | /* |
| 1298 | * The completion task will send this CTLX |
| 1299 | * to the reaper the next time it runs. We |
| 1300 | * are no longer in a hurry. |
| 1301 | */ |
| 1302 | ctlx->reapable = 1; |
| 1303 | ctlx->state = CTLX_REQ_FAILED; |
| 1304 | list_move_tail(&ctlx->list, &hw->ctlxq.completing); |
| 1305 | |
| 1306 | spin_unlock_irqrestore(&hw->ctlxq.lock, flags); |
| 1307 | |
| 1308 | if (runqueue) |
| 1309 | hfa384x_usbctlxq_run(hw); |
| 1310 | } else { |
| 1311 | if (ctlx->state == CTLX_COMPLETE) { |
| 1312 | result = completor->complete(completor); |
| 1313 | } else { |
Moritz Muehlenhoff | 9b9556e | 2009-01-25 21:55:01 +0100 | [diff] [blame] | 1314 | printk(KERN_WARNING "CTLX[%d] error: state(%s)\n", |
Moritz Muehlenhoff | 18c7f79 | 2009-02-18 19:50:07 +0100 | [diff] [blame] | 1315 | le16_to_cpu(ctlx->outbuf.type), |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 1316 | ctlxstr(ctlx->state)); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1317 | result = -EIO; |
| 1318 | } |
| 1319 | |
| 1320 | list_del(&ctlx->list); |
| 1321 | spin_unlock_irqrestore(&hw->ctlxq.lock, flags); |
| 1322 | kfree(ctlx); |
| 1323 | } |
| 1324 | |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1325 | return result; |
| 1326 | } |
| 1327 | |
| 1328 | /*---------------------------------------------------------------- |
| 1329 | * hfa384x_docmd |
| 1330 | * |
| 1331 | * Constructs a command CTLX and submits it. |
| 1332 | * |
| 1333 | * NOTE: Any changes to the 'post-submit' code in this function |
| 1334 | * need to be carried over to hfa384x_cbcmd() since the handling |
| 1335 | * is virtually identical. |
| 1336 | * |
| 1337 | * Arguments: |
| 1338 | * hw device structure |
| 1339 | * mode DOWAIT or DOASYNC |
| 1340 | * cmd cmd structure. Includes all arguments and result |
| 1341 | * data points. All in host order. in host order |
| 1342 | * cmdcb command-specific callback |
| 1343 | * usercb user callback for async calls, NULL for DOWAIT calls |
| 1344 | * usercb_data user supplied data pointer for async calls, NULL |
| 1345 | * for DOASYNC calls |
| 1346 | * |
| 1347 | * Returns: |
| 1348 | * 0 success |
| 1349 | * -EIO CTLX failure |
| 1350 | * -ERESTARTSYS Awakened on signal |
| 1351 | * >0 command indicated error, Status and Resp0-2 are |
| 1352 | * in hw structure. |
| 1353 | * |
| 1354 | * Side effects: |
| 1355 | * |
| 1356 | * |
| 1357 | * Call context: |
| 1358 | * process |
| 1359 | ----------------------------------------------------------------*/ |
| 1360 | static int |
Mithlesh Thukral | 297f06c | 2009-06-10 19:36:11 +0530 | [diff] [blame] | 1361 | hfa384x_docmd(hfa384x_t *hw, |
Edgardo Hames | 631c8de | 2010-03-08 17:02:37 -0800 | [diff] [blame] | 1362 | enum cmd_mode mode, |
Mithlesh Thukral | 297f06c | 2009-06-10 19:36:11 +0530 | [diff] [blame] | 1363 | hfa384x_metacmd_t *cmd, |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 1364 | ctlx_cmdcb_t cmdcb, ctlx_usercb_t usercb, void *usercb_data) |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1365 | { |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 1366 | int result; |
| 1367 | hfa384x_usbctlx_t *ctlx; |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1368 | |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1369 | ctlx = usbctlx_alloc(); |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 1370 | if (ctlx == NULL) { |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1371 | result = -ENOMEM; |
| 1372 | goto done; |
| 1373 | } |
| 1374 | |
| 1375 | /* Initialize the command */ |
Moritz Muehlenhoff | 18c7f79 | 2009-02-18 19:50:07 +0100 | [diff] [blame] | 1376 | ctlx->outbuf.cmdreq.type = cpu_to_le16(HFA384x_USB_CMDREQ); |
| 1377 | ctlx->outbuf.cmdreq.cmd = cpu_to_le16(cmd->cmd); |
| 1378 | ctlx->outbuf.cmdreq.parm0 = cpu_to_le16(cmd->parm0); |
| 1379 | ctlx->outbuf.cmdreq.parm1 = cpu_to_le16(cmd->parm1); |
| 1380 | ctlx->outbuf.cmdreq.parm2 = cpu_to_le16(cmd->parm2); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1381 | |
| 1382 | ctlx->outbufsize = sizeof(ctlx->outbuf.cmdreq); |
| 1383 | |
Moritz Muehlenhoff | a7cf7ba | 2009-02-08 02:01:00 +0100 | [diff] [blame] | 1384 | pr_debug("cmdreq: cmd=0x%04x " |
Mithlesh Thukral | 75f49e0 | 2009-05-25 19:06:16 +0530 | [diff] [blame] | 1385 | "parm0=0x%04x parm1=0x%04x parm2=0x%04x\n", |
| 1386 | cmd->cmd, cmd->parm0, cmd->parm1, cmd->parm2); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1387 | |
| 1388 | ctlx->reapable = mode; |
| 1389 | ctlx->cmdcb = cmdcb; |
| 1390 | ctlx->usercb = usercb; |
| 1391 | ctlx->usercb_data = usercb_data; |
| 1392 | |
| 1393 | result = hfa384x_usbctlx_submit(hw, ctlx); |
| 1394 | if (result != 0) { |
| 1395 | kfree(ctlx); |
| 1396 | } else if (mode == DOWAIT) { |
Edgardo Hames | 631c8de | 2010-03-08 17:02:37 -0800 | [diff] [blame] | 1397 | struct usbctlx_cmd_completor completor; |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1398 | |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 1399 | result = |
| 1400 | hfa384x_usbctlx_complete_sync(hw, ctlx, |
| 1401 | init_cmd_completor(&completor, |
| 1402 | &ctlx-> |
| 1403 | inbuf. |
| 1404 | cmdresp, |
| 1405 | &cmd-> |
| 1406 | result)); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1407 | } |
| 1408 | |
| 1409 | done: |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1410 | return result; |
| 1411 | } |
| 1412 | |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1413 | /*---------------------------------------------------------------- |
| 1414 | * hfa384x_dorrid |
| 1415 | * |
| 1416 | * Constructs a read rid CTLX and issues it. |
| 1417 | * |
| 1418 | * NOTE: Any changes to the 'post-submit' code in this function |
| 1419 | * need to be carried over to hfa384x_cbrrid() since the handling |
| 1420 | * is virtually identical. |
| 1421 | * |
| 1422 | * Arguments: |
| 1423 | * hw device structure |
| 1424 | * mode DOWAIT or DOASYNC |
| 1425 | * rid Read RID number (host order) |
| 1426 | * riddata Caller supplied buffer that MAC formatted RID.data |
| 1427 | * record will be written to for DOWAIT calls. Should |
| 1428 | * be NULL for DOASYNC calls. |
| 1429 | * riddatalen Buffer length for DOWAIT calls. Zero for DOASYNC calls. |
| 1430 | * cmdcb command callback for async calls, NULL for DOWAIT calls |
| 1431 | * usercb user callback for async calls, NULL for DOWAIT calls |
| 1432 | * usercb_data user supplied data pointer for async calls, NULL |
| 1433 | * for DOWAIT calls |
| 1434 | * |
| 1435 | * Returns: |
| 1436 | * 0 success |
| 1437 | * -EIO CTLX failure |
| 1438 | * -ERESTARTSYS Awakened on signal |
| 1439 | * -ENODATA riddatalen != macdatalen |
| 1440 | * >0 command indicated error, Status and Resp0-2 are |
| 1441 | * in hw structure. |
| 1442 | * |
| 1443 | * Side effects: |
| 1444 | * |
| 1445 | * Call context: |
| 1446 | * interrupt (DOASYNC) |
| 1447 | * process (DOWAIT or DOASYNC) |
| 1448 | ----------------------------------------------------------------*/ |
| 1449 | static int |
Mithlesh Thukral | 297f06c | 2009-06-10 19:36:11 +0530 | [diff] [blame] | 1450 | hfa384x_dorrid(hfa384x_t *hw, |
Edgardo Hames | 631c8de | 2010-03-08 17:02:37 -0800 | [diff] [blame] | 1451 | enum cmd_mode mode, |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 1452 | u16 rid, |
| 1453 | void *riddata, |
| 1454 | unsigned int riddatalen, |
| 1455 | ctlx_cmdcb_t cmdcb, ctlx_usercb_t usercb, void *usercb_data) |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1456 | { |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 1457 | int result; |
| 1458 | hfa384x_usbctlx_t *ctlx; |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1459 | |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1460 | ctlx = usbctlx_alloc(); |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 1461 | if (ctlx == NULL) { |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1462 | result = -ENOMEM; |
| 1463 | goto done; |
| 1464 | } |
| 1465 | |
| 1466 | /* Initialize the command */ |
Moritz Muehlenhoff | 18c7f79 | 2009-02-18 19:50:07 +0100 | [diff] [blame] | 1467 | ctlx->outbuf.rridreq.type = cpu_to_le16(HFA384x_USB_RRIDREQ); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1468 | ctlx->outbuf.rridreq.frmlen = |
Moritz Muehlenhoff | 18c7f79 | 2009-02-18 19:50:07 +0100 | [diff] [blame] | 1469 | cpu_to_le16(sizeof(ctlx->outbuf.rridreq.rid)); |
| 1470 | ctlx->outbuf.rridreq.rid = cpu_to_le16(rid); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1471 | |
| 1472 | ctlx->outbufsize = sizeof(ctlx->outbuf.rridreq); |
| 1473 | |
| 1474 | ctlx->reapable = mode; |
| 1475 | ctlx->cmdcb = cmdcb; |
| 1476 | ctlx->usercb = usercb; |
| 1477 | ctlx->usercb_data = usercb_data; |
| 1478 | |
| 1479 | /* Submit the CTLX */ |
| 1480 | result = hfa384x_usbctlx_submit(hw, ctlx); |
| 1481 | if (result != 0) { |
| 1482 | kfree(ctlx); |
| 1483 | } else if (mode == DOWAIT) { |
Edgardo Hames | 631c8de | 2010-03-08 17:02:37 -0800 | [diff] [blame] | 1484 | struct usbctlx_rrid_completor completor; |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1485 | |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 1486 | result = |
| 1487 | hfa384x_usbctlx_complete_sync(hw, ctlx, |
| 1488 | init_rrid_completor |
| 1489 | (&completor, |
| 1490 | &ctlx->inbuf.rridresp, |
| 1491 | riddata, riddatalen)); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1492 | } |
| 1493 | |
| 1494 | done: |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1495 | return result; |
| 1496 | } |
| 1497 | |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1498 | /*---------------------------------------------------------------- |
| 1499 | * hfa384x_dowrid |
| 1500 | * |
| 1501 | * Constructs a write rid CTLX and issues it. |
| 1502 | * |
| 1503 | * NOTE: Any changes to the 'post-submit' code in this function |
| 1504 | * need to be carried over to hfa384x_cbwrid() since the handling |
| 1505 | * is virtually identical. |
| 1506 | * |
| 1507 | * Arguments: |
| 1508 | * hw device structure |
Edgardo Hames | 631c8de | 2010-03-08 17:02:37 -0800 | [diff] [blame] | 1509 | * enum cmd_mode DOWAIT or DOASYNC |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1510 | * rid RID code |
| 1511 | * riddata Data portion of RID formatted for MAC |
| 1512 | * riddatalen Length of the data portion in bytes |
| 1513 | * cmdcb command callback for async calls, NULL for DOWAIT calls |
| 1514 | * usercb user callback for async calls, NULL for DOWAIT calls |
| 1515 | * usercb_data user supplied data pointer for async calls |
| 1516 | * |
| 1517 | * Returns: |
| 1518 | * 0 success |
| 1519 | * -ETIMEDOUT timed out waiting for register ready or |
| 1520 | * command completion |
| 1521 | * >0 command indicated error, Status and Resp0-2 are |
| 1522 | * in hw structure. |
| 1523 | * |
| 1524 | * Side effects: |
| 1525 | * |
| 1526 | * Call context: |
| 1527 | * interrupt (DOASYNC) |
| 1528 | * process (DOWAIT or DOASYNC) |
| 1529 | ----------------------------------------------------------------*/ |
| 1530 | static int |
Mithlesh Thukral | 297f06c | 2009-06-10 19:36:11 +0530 | [diff] [blame] | 1531 | hfa384x_dowrid(hfa384x_t *hw, |
Edgardo Hames | 631c8de | 2010-03-08 17:02:37 -0800 | [diff] [blame] | 1532 | enum cmd_mode mode, |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 1533 | u16 rid, |
| 1534 | void *riddata, |
| 1535 | unsigned int riddatalen, |
| 1536 | ctlx_cmdcb_t cmdcb, ctlx_usercb_t usercb, void *usercb_data) |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1537 | { |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 1538 | int result; |
| 1539 | hfa384x_usbctlx_t *ctlx; |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1540 | |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1541 | ctlx = usbctlx_alloc(); |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 1542 | if (ctlx == NULL) { |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1543 | result = -ENOMEM; |
| 1544 | goto done; |
| 1545 | } |
| 1546 | |
| 1547 | /* Initialize the command */ |
Moritz Muehlenhoff | 18c7f79 | 2009-02-18 19:50:07 +0100 | [diff] [blame] | 1548 | ctlx->outbuf.wridreq.type = cpu_to_le16(HFA384x_USB_WRIDREQ); |
| 1549 | ctlx->outbuf.wridreq.frmlen = cpu_to_le16((sizeof |
Mithlesh Thukral | 75f49e0 | 2009-05-25 19:06:16 +0530 | [diff] [blame] | 1550 | (ctlx->outbuf.wridreq.rid) + |
| 1551 | riddatalen + 1) / 2); |
Moritz Muehlenhoff | 18c7f79 | 2009-02-18 19:50:07 +0100 | [diff] [blame] | 1552 | ctlx->outbuf.wridreq.rid = cpu_to_le16(rid); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1553 | memcpy(ctlx->outbuf.wridreq.data, riddata, riddatalen); |
| 1554 | |
| 1555 | ctlx->outbufsize = sizeof(ctlx->outbuf.wridreq.type) + |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 1556 | sizeof(ctlx->outbuf.wridreq.frmlen) + |
| 1557 | sizeof(ctlx->outbuf.wridreq.rid) + riddatalen; |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1558 | |
| 1559 | ctlx->reapable = mode; |
| 1560 | ctlx->cmdcb = cmdcb; |
| 1561 | ctlx->usercb = usercb; |
| 1562 | ctlx->usercb_data = usercb_data; |
| 1563 | |
| 1564 | /* Submit the CTLX */ |
| 1565 | result = hfa384x_usbctlx_submit(hw, ctlx); |
| 1566 | if (result != 0) { |
| 1567 | kfree(ctlx); |
| 1568 | } else if (mode == DOWAIT) { |
| 1569 | usbctlx_wrid_completor_t completor; |
| 1570 | hfa384x_cmdresult_t wridresult; |
| 1571 | |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 1572 | result = hfa384x_usbctlx_complete_sync(hw, |
| 1573 | ctlx, |
| 1574 | init_wrid_completor |
| 1575 | (&completor, |
| 1576 | &ctlx->inbuf.wridresp, |
| 1577 | &wridresult)); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1578 | } |
| 1579 | |
| 1580 | done: |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1581 | return result; |
| 1582 | } |
| 1583 | |
| 1584 | /*---------------------------------------------------------------- |
| 1585 | * hfa384x_dormem |
| 1586 | * |
| 1587 | * Constructs a readmem CTLX and issues it. |
| 1588 | * |
| 1589 | * NOTE: Any changes to the 'post-submit' code in this function |
| 1590 | * need to be carried over to hfa384x_cbrmem() since the handling |
| 1591 | * is virtually identical. |
| 1592 | * |
| 1593 | * Arguments: |
| 1594 | * hw device structure |
| 1595 | * mode DOWAIT or DOASYNC |
| 1596 | * page MAC address space page (CMD format) |
| 1597 | * offset MAC address space offset |
| 1598 | * data Ptr to data buffer to receive read |
| 1599 | * len Length of the data to read (max == 2048) |
| 1600 | * cmdcb command callback for async calls, NULL for DOWAIT calls |
| 1601 | * usercb user callback for async calls, NULL for DOWAIT calls |
| 1602 | * usercb_data user supplied data pointer for async calls |
| 1603 | * |
| 1604 | * Returns: |
| 1605 | * 0 success |
| 1606 | * -ETIMEDOUT timed out waiting for register ready or |
| 1607 | * command completion |
| 1608 | * >0 command indicated error, Status and Resp0-2 are |
| 1609 | * in hw structure. |
| 1610 | * |
| 1611 | * Side effects: |
| 1612 | * |
| 1613 | * Call context: |
| 1614 | * interrupt (DOASYNC) |
| 1615 | * process (DOWAIT or DOASYNC) |
| 1616 | ----------------------------------------------------------------*/ |
| 1617 | static int |
Mithlesh Thukral | 297f06c | 2009-06-10 19:36:11 +0530 | [diff] [blame] | 1618 | hfa384x_dormem(hfa384x_t *hw, |
Edgardo Hames | 631c8de | 2010-03-08 17:02:37 -0800 | [diff] [blame] | 1619 | enum cmd_mode mode, |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 1620 | u16 page, |
| 1621 | u16 offset, |
| 1622 | void *data, |
| 1623 | unsigned int len, |
| 1624 | ctlx_cmdcb_t cmdcb, ctlx_usercb_t usercb, void *usercb_data) |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1625 | { |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 1626 | int result; |
| 1627 | hfa384x_usbctlx_t *ctlx; |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1628 | |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1629 | ctlx = usbctlx_alloc(); |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 1630 | if (ctlx == NULL) { |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1631 | result = -ENOMEM; |
| 1632 | goto done; |
| 1633 | } |
| 1634 | |
| 1635 | /* Initialize the command */ |
Moritz Muehlenhoff | 18c7f79 | 2009-02-18 19:50:07 +0100 | [diff] [blame] | 1636 | ctlx->outbuf.rmemreq.type = cpu_to_le16(HFA384x_USB_RMEMREQ); |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 1637 | ctlx->outbuf.rmemreq.frmlen = |
Moritz Muehlenhoff | 18c7f79 | 2009-02-18 19:50:07 +0100 | [diff] [blame] | 1638 | cpu_to_le16(sizeof(ctlx->outbuf.rmemreq.offset) + |
Mithlesh Thukral | 75f49e0 | 2009-05-25 19:06:16 +0530 | [diff] [blame] | 1639 | sizeof(ctlx->outbuf.rmemreq.page) + len); |
Moritz Muehlenhoff | 18c7f79 | 2009-02-18 19:50:07 +0100 | [diff] [blame] | 1640 | ctlx->outbuf.rmemreq.offset = cpu_to_le16(offset); |
| 1641 | ctlx->outbuf.rmemreq.page = cpu_to_le16(page); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1642 | |
| 1643 | ctlx->outbufsize = sizeof(ctlx->outbuf.rmemreq); |
| 1644 | |
Mithlesh Thukral | 75f49e0 | 2009-05-25 19:06:16 +0530 | [diff] [blame] | 1645 | pr_debug("type=0x%04x frmlen=%d offset=0x%04x page=0x%04x\n", |
| 1646 | ctlx->outbuf.rmemreq.type, |
| 1647 | ctlx->outbuf.rmemreq.frmlen, |
| 1648 | ctlx->outbuf.rmemreq.offset, ctlx->outbuf.rmemreq.page); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1649 | |
Mithlesh Thukral | 75f49e0 | 2009-05-25 19:06:16 +0530 | [diff] [blame] | 1650 | pr_debug("pktsize=%zd\n", ROUNDUP64(sizeof(ctlx->outbuf.rmemreq))); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1651 | |
| 1652 | ctlx->reapable = mode; |
| 1653 | ctlx->cmdcb = cmdcb; |
| 1654 | ctlx->usercb = usercb; |
| 1655 | ctlx->usercb_data = usercb_data; |
| 1656 | |
| 1657 | result = hfa384x_usbctlx_submit(hw, ctlx); |
| 1658 | if (result != 0) { |
| 1659 | kfree(ctlx); |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 1660 | } else if (mode == DOWAIT) { |
| 1661 | usbctlx_rmem_completor_t completor; |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1662 | |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 1663 | result = |
| 1664 | hfa384x_usbctlx_complete_sync(hw, ctlx, |
| 1665 | init_rmem_completor |
| 1666 | (&completor, |
| 1667 | &ctlx->inbuf.rmemresp, data, |
| 1668 | len)); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1669 | } |
| 1670 | |
| 1671 | done: |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1672 | return result; |
| 1673 | } |
| 1674 | |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1675 | /*---------------------------------------------------------------- |
| 1676 | * hfa384x_dowmem |
| 1677 | * |
| 1678 | * Constructs a writemem CTLX and issues it. |
| 1679 | * |
| 1680 | * NOTE: Any changes to the 'post-submit' code in this function |
| 1681 | * need to be carried over to hfa384x_cbwmem() since the handling |
| 1682 | * is virtually identical. |
| 1683 | * |
| 1684 | * Arguments: |
| 1685 | * hw device structure |
| 1686 | * mode DOWAIT or DOASYNC |
| 1687 | * page MAC address space page (CMD format) |
| 1688 | * offset MAC address space offset |
| 1689 | * data Ptr to data buffer containing write data |
| 1690 | * len Length of the data to read (max == 2048) |
| 1691 | * cmdcb command callback for async calls, NULL for DOWAIT calls |
| 1692 | * usercb user callback for async calls, NULL for DOWAIT calls |
| 1693 | * usercb_data user supplied data pointer for async calls. |
| 1694 | * |
| 1695 | * Returns: |
| 1696 | * 0 success |
| 1697 | * -ETIMEDOUT timed out waiting for register ready or |
| 1698 | * command completion |
| 1699 | * >0 command indicated error, Status and Resp0-2 are |
| 1700 | * in hw structure. |
| 1701 | * |
| 1702 | * Side effects: |
| 1703 | * |
| 1704 | * Call context: |
| 1705 | * interrupt (DOWAIT) |
| 1706 | * process (DOWAIT or DOASYNC) |
| 1707 | ----------------------------------------------------------------*/ |
| 1708 | static int |
Mithlesh Thukral | 297f06c | 2009-06-10 19:36:11 +0530 | [diff] [blame] | 1709 | hfa384x_dowmem(hfa384x_t *hw, |
Edgardo Hames | 631c8de | 2010-03-08 17:02:37 -0800 | [diff] [blame] | 1710 | enum cmd_mode mode, |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 1711 | u16 page, |
| 1712 | u16 offset, |
| 1713 | void *data, |
| 1714 | unsigned int len, |
| 1715 | ctlx_cmdcb_t cmdcb, ctlx_usercb_t usercb, void *usercb_data) |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1716 | { |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 1717 | int result; |
| 1718 | hfa384x_usbctlx_t *ctlx; |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1719 | |
Mithlesh Thukral | 75f49e0 | 2009-05-25 19:06:16 +0530 | [diff] [blame] | 1720 | pr_debug("page=0x%04x offset=0x%04x len=%d\n", page, offset, len); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1721 | |
| 1722 | ctlx = usbctlx_alloc(); |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 1723 | if (ctlx == NULL) { |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1724 | result = -ENOMEM; |
| 1725 | goto done; |
| 1726 | } |
| 1727 | |
| 1728 | /* Initialize the command */ |
Moritz Muehlenhoff | 18c7f79 | 2009-02-18 19:50:07 +0100 | [diff] [blame] | 1729 | ctlx->outbuf.wmemreq.type = cpu_to_le16(HFA384x_USB_WMEMREQ); |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 1730 | ctlx->outbuf.wmemreq.frmlen = |
Moritz Muehlenhoff | 18c7f79 | 2009-02-18 19:50:07 +0100 | [diff] [blame] | 1731 | cpu_to_le16(sizeof(ctlx->outbuf.wmemreq.offset) + |
Mithlesh Thukral | 75f49e0 | 2009-05-25 19:06:16 +0530 | [diff] [blame] | 1732 | sizeof(ctlx->outbuf.wmemreq.page) + len); |
Moritz Muehlenhoff | 18c7f79 | 2009-02-18 19:50:07 +0100 | [diff] [blame] | 1733 | ctlx->outbuf.wmemreq.offset = cpu_to_le16(offset); |
| 1734 | ctlx->outbuf.wmemreq.page = cpu_to_le16(page); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1735 | memcpy(ctlx->outbuf.wmemreq.data, data, len); |
| 1736 | |
| 1737 | ctlx->outbufsize = sizeof(ctlx->outbuf.wmemreq.type) + |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 1738 | sizeof(ctlx->outbuf.wmemreq.frmlen) + |
| 1739 | sizeof(ctlx->outbuf.wmemreq.offset) + |
| 1740 | sizeof(ctlx->outbuf.wmemreq.page) + len; |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1741 | |
| 1742 | ctlx->reapable = mode; |
| 1743 | ctlx->cmdcb = cmdcb; |
| 1744 | ctlx->usercb = usercb; |
| 1745 | ctlx->usercb_data = usercb_data; |
| 1746 | |
| 1747 | result = hfa384x_usbctlx_submit(hw, ctlx); |
| 1748 | if (result != 0) { |
| 1749 | kfree(ctlx); |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 1750 | } else if (mode == DOWAIT) { |
| 1751 | usbctlx_wmem_completor_t completor; |
| 1752 | hfa384x_cmdresult_t wmemresult; |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1753 | |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 1754 | result = hfa384x_usbctlx_complete_sync(hw, |
| 1755 | ctlx, |
| 1756 | init_wmem_completor |
| 1757 | (&completor, |
| 1758 | &ctlx->inbuf.wmemresp, |
| 1759 | &wmemresult)); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1760 | } |
| 1761 | |
| 1762 | done: |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1763 | return result; |
| 1764 | } |
| 1765 | |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1766 | /*---------------------------------------------------------------- |
| 1767 | * hfa384x_drvr_commtallies |
| 1768 | * |
| 1769 | * Send a commtallies inquiry to the MAC. Note that this is an async |
| 1770 | * call that will result in an info frame arriving sometime later. |
| 1771 | * |
| 1772 | * Arguments: |
| 1773 | * hw device structure |
| 1774 | * |
| 1775 | * Returns: |
| 1776 | * zero success. |
| 1777 | * |
| 1778 | * Side effects: |
| 1779 | * |
| 1780 | * Call context: |
| 1781 | * process |
| 1782 | ----------------------------------------------------------------*/ |
Mithlesh Thukral | 297f06c | 2009-06-10 19:36:11 +0530 | [diff] [blame] | 1783 | int hfa384x_drvr_commtallies(hfa384x_t *hw) |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1784 | { |
| 1785 | hfa384x_metacmd_t cmd; |
| 1786 | |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1787 | cmd.cmd = HFA384x_CMDCODE_INQ; |
| 1788 | cmd.parm0 = HFA384x_IT_COMMTALLIES; |
| 1789 | cmd.parm1 = 0; |
| 1790 | cmd.parm2 = 0; |
| 1791 | |
| 1792 | hfa384x_docmd_async(hw, &cmd, NULL, NULL, NULL); |
| 1793 | |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1794 | return 0; |
| 1795 | } |
| 1796 | |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1797 | /*---------------------------------------------------------------- |
| 1798 | * hfa384x_drvr_disable |
| 1799 | * |
| 1800 | * Issues the disable command to stop communications on one of |
| 1801 | * the MACs 'ports'. Only macport 0 is valid for stations. |
| 1802 | * APs may also disable macports 1-6. Only ports that have been |
| 1803 | * previously enabled may be disabled. |
| 1804 | * |
| 1805 | * Arguments: |
| 1806 | * hw device structure |
| 1807 | * macport MAC port number (host order) |
| 1808 | * |
| 1809 | * Returns: |
| 1810 | * 0 success |
| 1811 | * >0 f/w reported failure - f/w status code |
| 1812 | * <0 driver reported error (timeout|bad arg) |
| 1813 | * |
| 1814 | * Side effects: |
| 1815 | * |
| 1816 | * Call context: |
| 1817 | * process |
| 1818 | ----------------------------------------------------------------*/ |
Mithlesh Thukral | 297f06c | 2009-06-10 19:36:11 +0530 | [diff] [blame] | 1819 | int hfa384x_drvr_disable(hfa384x_t *hw, u16 macport) |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1820 | { |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 1821 | int result = 0; |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1822 | |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1823 | if ((!hw->isap && macport != 0) || |
| 1824 | (hw->isap && !(macport <= HFA384x_PORTID_MAX)) || |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 1825 | !(hw->port_enabled[macport])) { |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1826 | result = -EINVAL; |
| 1827 | } else { |
| 1828 | result = hfa384x_cmd_disable(hw, macport); |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 1829 | if (result == 0) |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1830 | hw->port_enabled[macport] = 0; |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1831 | } |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1832 | return result; |
| 1833 | } |
| 1834 | |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1835 | /*---------------------------------------------------------------- |
| 1836 | * hfa384x_drvr_enable |
| 1837 | * |
| 1838 | * Issues the enable command to enable communications on one of |
| 1839 | * the MACs 'ports'. Only macport 0 is valid for stations. |
| 1840 | * APs may also enable macports 1-6. Only ports that are currently |
| 1841 | * disabled may be enabled. |
| 1842 | * |
| 1843 | * Arguments: |
| 1844 | * hw device structure |
| 1845 | * macport MAC port number |
| 1846 | * |
| 1847 | * Returns: |
| 1848 | * 0 success |
| 1849 | * >0 f/w reported failure - f/w status code |
| 1850 | * <0 driver reported error (timeout|bad arg) |
| 1851 | * |
| 1852 | * Side effects: |
| 1853 | * |
| 1854 | * Call context: |
| 1855 | * process |
| 1856 | ----------------------------------------------------------------*/ |
Mithlesh Thukral | 297f06c | 2009-06-10 19:36:11 +0530 | [diff] [blame] | 1857 | int hfa384x_drvr_enable(hfa384x_t *hw, u16 macport) |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1858 | { |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 1859 | int result = 0; |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1860 | |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1861 | if ((!hw->isap && macport != 0) || |
| 1862 | (hw->isap && !(macport <= HFA384x_PORTID_MAX)) || |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 1863 | (hw->port_enabled[macport])) { |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1864 | result = -EINVAL; |
| 1865 | } else { |
| 1866 | result = hfa384x_cmd_enable(hw, macport); |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 1867 | if (result == 0) |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1868 | hw->port_enabled[macport] = 1; |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1869 | } |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1870 | return result; |
| 1871 | } |
| 1872 | |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1873 | /*---------------------------------------------------------------- |
| 1874 | * hfa384x_drvr_flashdl_enable |
| 1875 | * |
| 1876 | * Begins the flash download state. Checks to see that we're not |
| 1877 | * already in a download state and that a port isn't enabled. |
| 1878 | * Sets the download state and retrieves the flash download |
| 1879 | * buffer location, buffer size, and timeout length. |
| 1880 | * |
| 1881 | * Arguments: |
| 1882 | * hw device structure |
| 1883 | * |
| 1884 | * Returns: |
| 1885 | * 0 success |
| 1886 | * >0 f/w reported error - f/w status code |
| 1887 | * <0 driver reported error |
| 1888 | * |
| 1889 | * Side effects: |
| 1890 | * |
| 1891 | * Call context: |
| 1892 | * process |
| 1893 | ----------------------------------------------------------------*/ |
Mithlesh Thukral | 297f06c | 2009-06-10 19:36:11 +0530 | [diff] [blame] | 1894 | int hfa384x_drvr_flashdl_enable(hfa384x_t *hw) |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1895 | { |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 1896 | int result = 0; |
| 1897 | int i; |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1898 | |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1899 | /* Check that a port isn't active */ |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 1900 | for (i = 0; i < HFA384x_PORTID_MAX; i++) { |
| 1901 | if (hw->port_enabled[i]) { |
Moritz Muehlenhoff | a7cf7ba | 2009-02-08 02:01:00 +0100 | [diff] [blame] | 1902 | pr_debug("called when port enabled.\n"); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1903 | return -EINVAL; |
| 1904 | } |
| 1905 | } |
| 1906 | |
| 1907 | /* Check that we're not already in a download state */ |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 1908 | if (hw->dlstate != HFA384x_DLSTATE_DISABLED) |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1909 | return -EINVAL; |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1910 | |
| 1911 | /* Retrieve the buffer loc&size and timeout */ |
Svenne Krap | 46800b2 | 2010-02-14 18:59:42 +0100 | [diff] [blame] | 1912 | result = hfa384x_drvr_getconfig(hw, HFA384x_RID_DOWNLOADBUFFER, |
Andrew Elwell | 3f4b4e7 | 2010-02-18 23:56:13 +0100 | [diff] [blame] | 1913 | &(hw->bufinfo), sizeof(hw->bufinfo)); |
| 1914 | if (result) |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1915 | return result; |
Andrew Elwell | 3f4b4e7 | 2010-02-18 23:56:13 +0100 | [diff] [blame] | 1916 | |
Moritz Muehlenhoff | 18c7f79 | 2009-02-18 19:50:07 +0100 | [diff] [blame] | 1917 | hw->bufinfo.page = le16_to_cpu(hw->bufinfo.page); |
| 1918 | hw->bufinfo.offset = le16_to_cpu(hw->bufinfo.offset); |
| 1919 | hw->bufinfo.len = le16_to_cpu(hw->bufinfo.len); |
Svenne Krap | 46800b2 | 2010-02-14 18:59:42 +0100 | [diff] [blame] | 1920 | result = hfa384x_drvr_getconfig16(hw, HFA384x_RID_MAXLOADTIME, |
Andrew Elwell | 3f4b4e7 | 2010-02-18 23:56:13 +0100 | [diff] [blame] | 1921 | &(hw->dltimeout)); |
| 1922 | if (result) |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1923 | return result; |
Andrew Elwell | 3f4b4e7 | 2010-02-18 23:56:13 +0100 | [diff] [blame] | 1924 | |
Moritz Muehlenhoff | 18c7f79 | 2009-02-18 19:50:07 +0100 | [diff] [blame] | 1925 | hw->dltimeout = le16_to_cpu(hw->dltimeout); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1926 | |
Moritz Muehlenhoff | a7cf7ba | 2009-02-08 02:01:00 +0100 | [diff] [blame] | 1927 | pr_debug("flashdl_enable\n"); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1928 | |
| 1929 | hw->dlstate = HFA384x_DLSTATE_FLASHENABLED; |
Moritz Muehlenhoff | 8a251b5 | 2009-01-21 22:00:44 +0100 | [diff] [blame] | 1930 | |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1931 | return result; |
| 1932 | } |
| 1933 | |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1934 | /*---------------------------------------------------------------- |
| 1935 | * hfa384x_drvr_flashdl_disable |
| 1936 | * |
| 1937 | * Ends the flash download state. Note that this will cause the MAC |
| 1938 | * firmware to restart. |
| 1939 | * |
| 1940 | * Arguments: |
| 1941 | * hw device structure |
| 1942 | * |
| 1943 | * Returns: |
| 1944 | * 0 success |
| 1945 | * >0 f/w reported error - f/w status code |
| 1946 | * <0 driver reported error |
| 1947 | * |
| 1948 | * Side effects: |
| 1949 | * |
| 1950 | * Call context: |
| 1951 | * process |
| 1952 | ----------------------------------------------------------------*/ |
Mithlesh Thukral | 297f06c | 2009-06-10 19:36:11 +0530 | [diff] [blame] | 1953 | int hfa384x_drvr_flashdl_disable(hfa384x_t *hw) |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1954 | { |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1955 | /* Check that we're already in the download state */ |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 1956 | if (hw->dlstate != HFA384x_DLSTATE_FLASHENABLED) |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1957 | return -EINVAL; |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1958 | |
Moritz Muehlenhoff | a7cf7ba | 2009-02-08 02:01:00 +0100 | [diff] [blame] | 1959 | pr_debug("flashdl_enable\n"); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1960 | |
| 1961 | /* There isn't much we can do at this point, so I don't */ |
| 1962 | /* bother w/ the return value */ |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 1963 | hfa384x_cmd_download(hw, HFA384x_PROGMODE_DISABLE, 0, 0, 0); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1964 | hw->dlstate = HFA384x_DLSTATE_DISABLED; |
| 1965 | |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1966 | return 0; |
| 1967 | } |
| 1968 | |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1969 | /*---------------------------------------------------------------- |
| 1970 | * hfa384x_drvr_flashdl_write |
| 1971 | * |
| 1972 | * Performs a FLASH download of a chunk of data. First checks to see |
| 1973 | * that we're in the FLASH download state, then sets the download |
| 1974 | * mode, uses the aux functions to 1) copy the data to the flash |
| 1975 | * buffer, 2) sets the download 'write flash' mode, 3) readback and |
| 1976 | * compare. Lather rinse, repeat as many times an necessary to get |
| 1977 | * all the given data into flash. |
| 1978 | * When all data has been written using this function (possibly |
| 1979 | * repeatedly), call drvr_flashdl_disable() to end the download state |
| 1980 | * and restart the MAC. |
| 1981 | * |
| 1982 | * Arguments: |
| 1983 | * hw device structure |
| 1984 | * daddr Card address to write to. (host order) |
| 1985 | * buf Ptr to data to write. |
| 1986 | * len Length of data (host order). |
| 1987 | * |
| 1988 | * Returns: |
| 1989 | * 0 success |
| 1990 | * >0 f/w reported error - f/w status code |
| 1991 | * <0 driver reported error |
| 1992 | * |
| 1993 | * Side effects: |
| 1994 | * |
| 1995 | * Call context: |
| 1996 | * process |
| 1997 | ----------------------------------------------------------------*/ |
Mithlesh Thukral | 297f06c | 2009-06-10 19:36:11 +0530 | [diff] [blame] | 1998 | int hfa384x_drvr_flashdl_write(hfa384x_t *hw, u32 daddr, void *buf, u32 len) |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 1999 | { |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 2000 | int result = 0; |
| 2001 | u32 dlbufaddr; |
| 2002 | int nburns; |
| 2003 | u32 burnlen; |
| 2004 | u32 burndaddr; |
| 2005 | u16 burnlo; |
| 2006 | u16 burnhi; |
| 2007 | int nwrites; |
| 2008 | u8 *writebuf; |
| 2009 | u16 writepage; |
| 2010 | u16 writeoffset; |
| 2011 | u32 writelen; |
| 2012 | int i; |
| 2013 | int j; |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 2014 | |
Moritz Muehlenhoff | a7cf7ba | 2009-02-08 02:01:00 +0100 | [diff] [blame] | 2015 | pr_debug("daddr=0x%08x len=%d\n", daddr, len); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 2016 | |
| 2017 | /* Check that we're in the flash download state */ |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 2018 | if (hw->dlstate != HFA384x_DLSTATE_FLASHENABLED) |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 2019 | return -EINVAL; |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 2020 | |
Moritz Muehlenhoff | 350f2f4b | 2009-01-25 21:54:57 +0100 | [diff] [blame] | 2021 | printk(KERN_INFO "Download %d bytes to flash @0x%06x\n", len, daddr); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 2022 | |
| 2023 | /* Convert to flat address for arithmetic */ |
| 2024 | /* NOTE: dlbuffer RID stores the address in AUX format */ |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 2025 | dlbufaddr = |
| 2026 | HFA384x_ADDR_AUX_MKFLAT(hw->bufinfo.page, hw->bufinfo.offset); |
Mithlesh Thukral | 75f49e0 | 2009-05-25 19:06:16 +0530 | [diff] [blame] | 2027 | pr_debug("dlbuf.page=0x%04x dlbuf.offset=0x%04x dlbufaddr=0x%08x\n", |
| 2028 | hw->bufinfo.page, hw->bufinfo.offset, dlbufaddr); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 2029 | |
| 2030 | #if 0 |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 2031 | printk(KERN_WARNING "dlbuf@0x%06lx len=%d to=%d\n", dlbufaddr, |
| 2032 | hw->bufinfo.len, hw->dltimeout); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 2033 | #endif |
| 2034 | /* Calculations to determine how many fills of the dlbuffer to do |
| 2035 | * and how many USB wmemreq's to do for each fill. At this point |
| 2036 | * in time, the dlbuffer size and the wmemreq size are the same. |
| 2037 | * Therefore, nwrites should always be 1. The extra complexity |
| 2038 | * here is a hedge against future changes. |
| 2039 | */ |
| 2040 | |
| 2041 | /* Figure out how many times to do the flash programming */ |
| 2042 | nburns = len / hw->bufinfo.len; |
| 2043 | nburns += (len % hw->bufinfo.len) ? 1 : 0; |
| 2044 | |
| 2045 | /* For each flash program cycle, how many USB wmemreq's are needed? */ |
| 2046 | nwrites = hw->bufinfo.len / HFA384x_USB_RWMEM_MAXLEN; |
| 2047 | nwrites += (hw->bufinfo.len % HFA384x_USB_RWMEM_MAXLEN) ? 1 : 0; |
| 2048 | |
| 2049 | /* For each burn */ |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 2050 | for (i = 0; i < nburns; i++) { |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 2051 | /* Get the dest address and len */ |
| 2052 | burnlen = (len - (hw->bufinfo.len * i)) > hw->bufinfo.len ? |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 2053 | hw->bufinfo.len : (len - (hw->bufinfo.len * i)); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 2054 | burndaddr = daddr + (hw->bufinfo.len * i); |
| 2055 | burnlo = HFA384x_ADDR_CMD_MKOFF(burndaddr); |
| 2056 | burnhi = HFA384x_ADDR_CMD_MKPAGE(burndaddr); |
| 2057 | |
Moritz Muehlenhoff | 350f2f4b | 2009-01-25 21:54:57 +0100 | [diff] [blame] | 2058 | printk(KERN_INFO "Writing %d bytes to flash @0x%06x\n", |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 2059 | burnlen, burndaddr); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 2060 | |
| 2061 | /* Set the download mode */ |
| 2062 | result = hfa384x_cmd_download(hw, HFA384x_PROGMODE_NV, |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 2063 | burnlo, burnhi, burnlen); |
| 2064 | if (result) { |
Moritz Muehlenhoff | edbd606 | 2009-01-25 21:55:00 +0100 | [diff] [blame] | 2065 | printk(KERN_ERR "download(NV,lo=%x,hi=%x,len=%x) " |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 2066 | "cmd failed, result=%d. Aborting d/l\n", |
| 2067 | burnlo, burnhi, burnlen, result); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 2068 | goto exit_proc; |
| 2069 | } |
| 2070 | |
| 2071 | /* copy the data to the flash download buffer */ |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 2072 | for (j = 0; j < nwrites; j++) { |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 2073 | writebuf = buf + |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 2074 | (i * hw->bufinfo.len) + |
| 2075 | (j * HFA384x_USB_RWMEM_MAXLEN); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 2076 | |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 2077 | writepage = HFA384x_ADDR_CMD_MKPAGE(dlbufaddr + |
Edgardo Hames | 631c8de | 2010-03-08 17:02:37 -0800 | [diff] [blame] | 2078 | (j * HFA384x_USB_RWMEM_MAXLEN)); |
| 2079 | writeoffset = HFA384x_ADDR_CMD_MKOFF(dlbufaddr + |
| 2080 | (j * HFA384x_USB_RWMEM_MAXLEN)); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 2081 | |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 2082 | writelen = burnlen - (j * HFA384x_USB_RWMEM_MAXLEN); |
| 2083 | writelen = writelen > HFA384x_USB_RWMEM_MAXLEN ? |
| 2084 | HFA384x_USB_RWMEM_MAXLEN : writelen; |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 2085 | |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 2086 | result = hfa384x_dowmem_wait(hw, |
| 2087 | writepage, |
| 2088 | writeoffset, |
| 2089 | writebuf, writelen); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 2090 | } |
| 2091 | |
| 2092 | /* set the download 'write flash' mode */ |
| 2093 | result = hfa384x_cmd_download(hw, |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 2094 | HFA384x_PROGMODE_NVWRITE, |
| 2095 | 0, 0, 0); |
| 2096 | if (result) { |
Moritz Muehlenhoff | edbd606 | 2009-01-25 21:55:00 +0100 | [diff] [blame] | 2097 | printk(KERN_ERR |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 2098 | "download(NVWRITE,lo=%x,hi=%x,len=%x) " |
| 2099 | "cmd failed, result=%d. Aborting d/l\n", |
| 2100 | burnlo, burnhi, burnlen, result); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 2101 | goto exit_proc; |
| 2102 | } |
| 2103 | |
| 2104 | /* TODO: We really should do a readback and compare. */ |
| 2105 | } |
| 2106 | |
| 2107 | exit_proc: |
| 2108 | |
| 2109 | /* Leave the firmware in the 'post-prog' mode. flashdl_disable will */ |
| 2110 | /* actually disable programming mode. Remember, that will cause the */ |
| 2111 | /* the firmware to effectively reset itself. */ |
| 2112 | |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 2113 | return result; |
| 2114 | } |
| 2115 | |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 2116 | /*---------------------------------------------------------------- |
| 2117 | * hfa384x_drvr_getconfig |
| 2118 | * |
| 2119 | * Performs the sequence necessary to read a config/info item. |
| 2120 | * |
| 2121 | * Arguments: |
| 2122 | * hw device structure |
| 2123 | * rid config/info record id (host order) |
| 2124 | * buf host side record buffer. Upon return it will |
| 2125 | * contain the body portion of the record (minus the |
| 2126 | * RID and len). |
| 2127 | * len buffer length (in bytes, should match record length) |
| 2128 | * |
| 2129 | * Returns: |
| 2130 | * 0 success |
| 2131 | * >0 f/w reported error - f/w status code |
| 2132 | * <0 driver reported error |
Edgardo Hames | 631c8de | 2010-03-08 17:02:37 -0800 | [diff] [blame] | 2133 | * -ENODATA length mismatch between argument and retrieved |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 2134 | * record. |
| 2135 | * |
| 2136 | * Side effects: |
| 2137 | * |
| 2138 | * Call context: |
| 2139 | * process |
| 2140 | ----------------------------------------------------------------*/ |
Mithlesh Thukral | 297f06c | 2009-06-10 19:36:11 +0530 | [diff] [blame] | 2141 | int hfa384x_drvr_getconfig(hfa384x_t *hw, u16 rid, void *buf, u16 len) |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 2142 | { |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 2143 | int result; |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 2144 | |
| 2145 | result = hfa384x_dorrid_wait(hw, rid, buf, len); |
| 2146 | |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 2147 | return result; |
| 2148 | } |
| 2149 | |
| 2150 | /*---------------------------------------------------------------- |
| 2151 | * hfa384x_drvr_getconfig_async |
| 2152 | * |
| 2153 | * Performs the sequence necessary to perform an async read of |
| 2154 | * of a config/info item. |
| 2155 | * |
| 2156 | * Arguments: |
| 2157 | * hw device structure |
| 2158 | * rid config/info record id (host order) |
| 2159 | * buf host side record buffer. Upon return it will |
| 2160 | * contain the body portion of the record (minus the |
| 2161 | * RID and len). |
| 2162 | * len buffer length (in bytes, should match record length) |
| 2163 | * cbfn caller supplied callback, called when the command |
| 2164 | * is done (successful or not). |
| 2165 | * cbfndata pointer to some caller supplied data that will be |
| 2166 | * passed in as an argument to the cbfn. |
| 2167 | * |
| 2168 | * Returns: |
| 2169 | * nothing the cbfn gets a status argument identifying if |
| 2170 | * any errors occur. |
| 2171 | * Side effects: |
| 2172 | * Queues an hfa384x_usbcmd_t for subsequent execution. |
| 2173 | * |
| 2174 | * Call context: |
| 2175 | * Any |
| 2176 | ----------------------------------------------------------------*/ |
| 2177 | int |
Mithlesh Thukral | 297f06c | 2009-06-10 19:36:11 +0530 | [diff] [blame] | 2178 | hfa384x_drvr_getconfig_async(hfa384x_t *hw, |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 2179 | u16 rid, ctlx_usercb_t usercb, void *usercb_data) |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 2180 | { |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 2181 | return hfa384x_dorrid_async(hw, rid, NULL, 0, |
| 2182 | hfa384x_cb_rrid, usercb, usercb_data); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 2183 | } |
| 2184 | |
| 2185 | /*---------------------------------------------------------------- |
| 2186 | * hfa384x_drvr_setconfig_async |
| 2187 | * |
| 2188 | * Performs the sequence necessary to write a config/info item. |
| 2189 | * |
| 2190 | * Arguments: |
| 2191 | * hw device structure |
| 2192 | * rid config/info record id (in host order) |
| 2193 | * buf host side record buffer |
| 2194 | * len buffer length (in bytes) |
| 2195 | * usercb completion callback |
| 2196 | * usercb_data completion callback argument |
| 2197 | * |
| 2198 | * Returns: |
| 2199 | * 0 success |
| 2200 | * >0 f/w reported error - f/w status code |
| 2201 | * <0 driver reported error |
| 2202 | * |
| 2203 | * Side effects: |
| 2204 | * |
| 2205 | * Call context: |
| 2206 | * process |
| 2207 | ----------------------------------------------------------------*/ |
| 2208 | int |
Mithlesh Thukral | 297f06c | 2009-06-10 19:36:11 +0530 | [diff] [blame] | 2209 | hfa384x_drvr_setconfig_async(hfa384x_t *hw, |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 2210 | u16 rid, |
| 2211 | void *buf, |
| 2212 | u16 len, ctlx_usercb_t usercb, void *usercb_data) |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 2213 | { |
| 2214 | return hfa384x_dowrid_async(hw, rid, buf, len, |
| 2215 | hfa384x_cb_status, usercb, usercb_data); |
| 2216 | } |
| 2217 | |
| 2218 | /*---------------------------------------------------------------- |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 2219 | * hfa384x_drvr_ramdl_disable |
| 2220 | * |
| 2221 | * Ends the ram download state. |
| 2222 | * |
| 2223 | * Arguments: |
| 2224 | * hw device structure |
| 2225 | * |
| 2226 | * Returns: |
| 2227 | * 0 success |
| 2228 | * >0 f/w reported error - f/w status code |
| 2229 | * <0 driver reported error |
| 2230 | * |
| 2231 | * Side effects: |
| 2232 | * |
| 2233 | * Call context: |
| 2234 | * process |
| 2235 | ----------------------------------------------------------------*/ |
Mithlesh Thukral | 297f06c | 2009-06-10 19:36:11 +0530 | [diff] [blame] | 2236 | int hfa384x_drvr_ramdl_disable(hfa384x_t *hw) |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 2237 | { |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 2238 | /* Check that we're already in the download state */ |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 2239 | if (hw->dlstate != HFA384x_DLSTATE_RAMENABLED) |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 2240 | return -EINVAL; |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 2241 | |
Moritz Muehlenhoff | a7cf7ba | 2009-02-08 02:01:00 +0100 | [diff] [blame] | 2242 | pr_debug("ramdl_disable()\n"); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 2243 | |
| 2244 | /* There isn't much we can do at this point, so I don't */ |
| 2245 | /* bother w/ the return value */ |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 2246 | hfa384x_cmd_download(hw, HFA384x_PROGMODE_DISABLE, 0, 0, 0); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 2247 | hw->dlstate = HFA384x_DLSTATE_DISABLED; |
| 2248 | |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 2249 | return 0; |
| 2250 | } |
| 2251 | |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 2252 | /*---------------------------------------------------------------- |
| 2253 | * hfa384x_drvr_ramdl_enable |
| 2254 | * |
| 2255 | * Begins the ram download state. Checks to see that we're not |
| 2256 | * already in a download state and that a port isn't enabled. |
| 2257 | * Sets the download state and calls cmd_download with the |
| 2258 | * ENABLE_VOLATILE subcommand and the exeaddr argument. |
| 2259 | * |
| 2260 | * Arguments: |
| 2261 | * hw device structure |
| 2262 | * exeaddr the card execution address that will be |
| 2263 | * jumped to when ramdl_disable() is called |
| 2264 | * (host order). |
| 2265 | * |
| 2266 | * Returns: |
| 2267 | * 0 success |
| 2268 | * >0 f/w reported error - f/w status code |
| 2269 | * <0 driver reported error |
| 2270 | * |
| 2271 | * Side effects: |
| 2272 | * |
| 2273 | * Call context: |
| 2274 | * process |
| 2275 | ----------------------------------------------------------------*/ |
Mithlesh Thukral | 297f06c | 2009-06-10 19:36:11 +0530 | [diff] [blame] | 2276 | int hfa384x_drvr_ramdl_enable(hfa384x_t *hw, u32 exeaddr) |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 2277 | { |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 2278 | int result = 0; |
| 2279 | u16 lowaddr; |
| 2280 | u16 hiaddr; |
| 2281 | int i; |
Moritz Muehlenhoff | 8a251b5 | 2009-01-21 22:00:44 +0100 | [diff] [blame] | 2282 | |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 2283 | /* Check that a port isn't active */ |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 2284 | for (i = 0; i < HFA384x_PORTID_MAX; i++) { |
| 2285 | if (hw->port_enabled[i]) { |
Moritz Muehlenhoff | edbd606 | 2009-01-25 21:55:00 +0100 | [diff] [blame] | 2286 | printk(KERN_ERR |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 2287 | "Can't download with a macport enabled.\n"); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 2288 | return -EINVAL; |
| 2289 | } |
| 2290 | } |
| 2291 | |
| 2292 | /* Check that we're not already in a download state */ |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 2293 | if (hw->dlstate != HFA384x_DLSTATE_DISABLED) { |
| 2294 | printk(KERN_ERR "Download state not disabled.\n"); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 2295 | return -EINVAL; |
| 2296 | } |
| 2297 | |
Moritz Muehlenhoff | a7cf7ba | 2009-02-08 02:01:00 +0100 | [diff] [blame] | 2298 | pr_debug("ramdl_enable, exeaddr=0x%08x\n", exeaddr); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 2299 | |
| 2300 | /* Call the download(1,addr) function */ |
| 2301 | lowaddr = HFA384x_ADDR_CMD_MKOFF(exeaddr); |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 2302 | hiaddr = HFA384x_ADDR_CMD_MKPAGE(exeaddr); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 2303 | |
| 2304 | result = hfa384x_cmd_download(hw, HFA384x_PROGMODE_RAM, |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 2305 | lowaddr, hiaddr, 0); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 2306 | |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 2307 | if (result == 0) { |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 2308 | /* Set the download state */ |
| 2309 | hw->dlstate = HFA384x_DLSTATE_RAMENABLED; |
| 2310 | } else { |
Mithlesh Thukral | 75f49e0 | 2009-05-25 19:06:16 +0530 | [diff] [blame] | 2311 | pr_debug("cmd_download(0x%04x, 0x%04x) failed, result=%d.\n", |
| 2312 | lowaddr, hiaddr, result); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 2313 | } |
| 2314 | |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 2315 | return result; |
| 2316 | } |
| 2317 | |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 2318 | /*---------------------------------------------------------------- |
| 2319 | * hfa384x_drvr_ramdl_write |
| 2320 | * |
| 2321 | * Performs a RAM download of a chunk of data. First checks to see |
| 2322 | * that we're in the RAM download state, then uses the [read|write]mem USB |
| 2323 | * commands to 1) copy the data, 2) readback and compare. The download |
| 2324 | * state is unaffected. When all data has been written using |
| 2325 | * this function, call drvr_ramdl_disable() to end the download state |
| 2326 | * and restart the MAC. |
| 2327 | * |
| 2328 | * Arguments: |
| 2329 | * hw device structure |
| 2330 | * daddr Card address to write to. (host order) |
| 2331 | * buf Ptr to data to write. |
| 2332 | * len Length of data (host order). |
| 2333 | * |
| 2334 | * Returns: |
| 2335 | * 0 success |
| 2336 | * >0 f/w reported error - f/w status code |
| 2337 | * <0 driver reported error |
| 2338 | * |
| 2339 | * Side effects: |
| 2340 | * |
| 2341 | * Call context: |
| 2342 | * process |
| 2343 | ----------------------------------------------------------------*/ |
Mithlesh Thukral | 297f06c | 2009-06-10 19:36:11 +0530 | [diff] [blame] | 2344 | int hfa384x_drvr_ramdl_write(hfa384x_t *hw, u32 daddr, void *buf, u32 len) |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 2345 | { |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 2346 | int result = 0; |
| 2347 | int nwrites; |
| 2348 | u8 *data = buf; |
| 2349 | int i; |
| 2350 | u32 curraddr; |
| 2351 | u16 currpage; |
| 2352 | u16 curroffset; |
| 2353 | u16 currlen; |
Moritz Muehlenhoff | 8a251b5 | 2009-01-21 22:00:44 +0100 | [diff] [blame] | 2354 | |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 2355 | /* Check that we're in the ram download state */ |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 2356 | if (hw->dlstate != HFA384x_DLSTATE_RAMENABLED) |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 2357 | return -EINVAL; |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 2358 | |
Moritz Muehlenhoff | 350f2f4b | 2009-01-25 21:54:57 +0100 | [diff] [blame] | 2359 | printk(KERN_INFO "Writing %d bytes to ram @0x%06x\n", len, daddr); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 2360 | |
| 2361 | /* How many dowmem calls? */ |
| 2362 | nwrites = len / HFA384x_USB_RWMEM_MAXLEN; |
| 2363 | nwrites += len % HFA384x_USB_RWMEM_MAXLEN ? 1 : 0; |
| 2364 | |
| 2365 | /* Do blocking wmem's */ |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 2366 | for (i = 0; i < nwrites; i++) { |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 2367 | /* make address args */ |
| 2368 | curraddr = daddr + (i * HFA384x_USB_RWMEM_MAXLEN); |
| 2369 | currpage = HFA384x_ADDR_CMD_MKPAGE(curraddr); |
| 2370 | curroffset = HFA384x_ADDR_CMD_MKOFF(curraddr); |
| 2371 | currlen = len - (i * HFA384x_USB_RWMEM_MAXLEN); |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 2372 | if (currlen > HFA384x_USB_RWMEM_MAXLEN) |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 2373 | currlen = HFA384x_USB_RWMEM_MAXLEN; |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 2374 | |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 2375 | /* Do blocking ctlx */ |
| 2376 | result = hfa384x_dowmem_wait(hw, |
| 2377 | currpage, |
| 2378 | curroffset, |
| 2379 | data + |
| 2380 | (i * HFA384x_USB_RWMEM_MAXLEN), |
| 2381 | currlen); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 2382 | |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 2383 | if (result) |
| 2384 | break; |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 2385 | |
| 2386 | /* TODO: We really should have a readback. */ |
| 2387 | } |
| 2388 | |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 2389 | return result; |
| 2390 | } |
| 2391 | |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 2392 | /*---------------------------------------------------------------- |
| 2393 | * hfa384x_drvr_readpda |
| 2394 | * |
| 2395 | * Performs the sequence to read the PDA space. Note there is no |
| 2396 | * drvr_writepda() function. Writing a PDA is |
| 2397 | * generally implemented by a calling component via calls to |
| 2398 | * cmd_download and writing to the flash download buffer via the |
| 2399 | * aux regs. |
| 2400 | * |
| 2401 | * Arguments: |
| 2402 | * hw device structure |
| 2403 | * buf buffer to store PDA in |
| 2404 | * len buffer length |
| 2405 | * |
| 2406 | * Returns: |
| 2407 | * 0 success |
| 2408 | * >0 f/w reported error - f/w status code |
| 2409 | * <0 driver reported error |
Jean Delvare | 3ac49a1 | 2009-06-04 16:20:28 +0200 | [diff] [blame] | 2410 | * -ETIMEDOUT timout waiting for the cmd regs to become |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 2411 | * available, or waiting for the control reg |
| 2412 | * to indicate the Aux port is enabled. |
| 2413 | * -ENODATA the buffer does NOT contain a valid PDA. |
| 2414 | * Either the card PDA is bad, or the auxdata |
| 2415 | * reads are giving us garbage. |
| 2416 | |
| 2417 | * |
| 2418 | * Side effects: |
| 2419 | * |
| 2420 | * Call context: |
| 2421 | * process or non-card interrupt. |
| 2422 | ----------------------------------------------------------------*/ |
Mithlesh Thukral | 297f06c | 2009-06-10 19:36:11 +0530 | [diff] [blame] | 2423 | int hfa384x_drvr_readpda(hfa384x_t *hw, void *buf, unsigned int len) |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 2424 | { |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 2425 | int result = 0; |
| 2426 | u16 *pda = buf; |
| 2427 | int pdaok = 0; |
| 2428 | int morepdrs = 1; |
| 2429 | int currpdr = 0; /* word offset of the current pdr */ |
| 2430 | size_t i; |
| 2431 | u16 pdrlen; /* pdr length in bytes, host order */ |
| 2432 | u16 pdrcode; /* pdr code, host order */ |
| 2433 | u16 currpage; |
| 2434 | u16 curroffset; |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 2435 | struct pdaloc { |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 2436 | u32 cardaddr; |
| 2437 | u16 auxctl; |
| 2438 | } pdaloc[] = { |
| 2439 | { |
| 2440 | HFA3842_PDA_BASE, 0}, { |
| 2441 | HFA3841_PDA_BASE, 0}, { |
| 2442 | HFA3841_PDA_BOGUS_BASE, 0} |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 2443 | }; |
| 2444 | |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 2445 | /* Read the pda from each known address. */ |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 2446 | for (i = 0; i < ARRAY_SIZE(pdaloc); i++) { |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 2447 | /* Make address */ |
| 2448 | currpage = HFA384x_ADDR_CMD_MKPAGE(pdaloc[i].cardaddr); |
| 2449 | curroffset = HFA384x_ADDR_CMD_MKOFF(pdaloc[i].cardaddr); |
| 2450 | |
Edgardo Hames | 631c8de | 2010-03-08 17:02:37 -0800 | [diff] [blame] | 2451 | /* units of bytes */ |
| 2452 | result = hfa384x_dormem_wait(hw, currpage, curroffset, buf, |
| 2453 | len); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 2454 | |
| 2455 | if (result) { |
Moritz Muehlenhoff | 9b9556e | 2009-01-25 21:55:01 +0100 | [diff] [blame] | 2456 | printk(KERN_WARNING |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 2457 | "Read from index %zd failed, continuing\n", i); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 2458 | continue; |
| 2459 | } |
| 2460 | |
| 2461 | /* Test for garbage */ |
| 2462 | pdaok = 1; /* initially assume good */ |
| 2463 | morepdrs = 1; |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 2464 | while (pdaok && morepdrs) { |
Moritz Muehlenhoff | 18c7f79 | 2009-02-18 19:50:07 +0100 | [diff] [blame] | 2465 | pdrlen = le16_to_cpu(pda[currpdr]) * 2; |
| 2466 | pdrcode = le16_to_cpu(pda[currpdr + 1]); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 2467 | /* Test the record length */ |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 2468 | if (pdrlen > HFA384x_PDR_LEN_MAX || pdrlen == 0) { |
| 2469 | printk(KERN_ERR "pdrlen invalid=%d\n", pdrlen); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 2470 | pdaok = 0; |
| 2471 | break; |
| 2472 | } |
| 2473 | /* Test the code */ |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 2474 | if (!hfa384x_isgood_pdrcode(pdrcode)) { |
Moritz Muehlenhoff | edbd606 | 2009-01-25 21:55:00 +0100 | [diff] [blame] | 2475 | printk(KERN_ERR "pdrcode invalid=%d\n", |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 2476 | pdrcode); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 2477 | pdaok = 0; |
| 2478 | break; |
| 2479 | } |
| 2480 | /* Test for completion */ |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 2481 | if (pdrcode == HFA384x_PDR_END_OF_PDA) |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 2482 | morepdrs = 0; |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 2483 | |
| 2484 | /* Move to the next pdr (if necessary) */ |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 2485 | if (morepdrs) { |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 2486 | /* note the access to pda[], need words here */ |
Moritz Muehlenhoff | 18c7f79 | 2009-02-18 19:50:07 +0100 | [diff] [blame] | 2487 | currpdr += le16_to_cpu(pda[currpdr]) + 1; |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 2488 | } |
| 2489 | } |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 2490 | if (pdaok) { |
Moritz Muehlenhoff | 350f2f4b | 2009-01-25 21:54:57 +0100 | [diff] [blame] | 2491 | printk(KERN_INFO |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 2492 | "PDA Read from 0x%08x in %s space.\n", |
| 2493 | pdaloc[i].cardaddr, |
| 2494 | pdaloc[i].auxctl == 0 ? "EXTDS" : |
| 2495 | pdaloc[i].auxctl == 1 ? "NV" : |
| 2496 | pdaloc[i].auxctl == 2 ? "PHY" : |
| 2497 | pdaloc[i].auxctl == 3 ? "ICSRAM" : |
| 2498 | "<bogus auxctl>"); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 2499 | break; |
| 2500 | } |
| 2501 | } |
| 2502 | result = pdaok ? 0 : -ENODATA; |
| 2503 | |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 2504 | if (result) |
Moritz Muehlenhoff | a7cf7ba | 2009-02-08 02:01:00 +0100 | [diff] [blame] | 2505 | pr_debug("Failure: pda is not okay\n"); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 2506 | |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 2507 | return result; |
| 2508 | } |
| 2509 | |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 2510 | /*---------------------------------------------------------------- |
| 2511 | * hfa384x_drvr_setconfig |
| 2512 | * |
| 2513 | * Performs the sequence necessary to write a config/info item. |
| 2514 | * |
| 2515 | * Arguments: |
| 2516 | * hw device structure |
| 2517 | * rid config/info record id (in host order) |
| 2518 | * buf host side record buffer |
| 2519 | * len buffer length (in bytes) |
| 2520 | * |
| 2521 | * Returns: |
| 2522 | * 0 success |
| 2523 | * >0 f/w reported error - f/w status code |
| 2524 | * <0 driver reported error |
| 2525 | * |
| 2526 | * Side effects: |
| 2527 | * |
| 2528 | * Call context: |
| 2529 | * process |
| 2530 | ----------------------------------------------------------------*/ |
Mithlesh Thukral | 297f06c | 2009-06-10 19:36:11 +0530 | [diff] [blame] | 2531 | int hfa384x_drvr_setconfig(hfa384x_t *hw, u16 rid, void *buf, u16 len) |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 2532 | { |
| 2533 | return hfa384x_dowrid_wait(hw, rid, buf, len); |
| 2534 | } |
| 2535 | |
| 2536 | /*---------------------------------------------------------------- |
| 2537 | * hfa384x_drvr_start |
| 2538 | * |
| 2539 | * Issues the MAC initialize command, sets up some data structures, |
| 2540 | * and enables the interrupts. After this function completes, the |
| 2541 | * low-level stuff should be ready for any/all commands. |
| 2542 | * |
| 2543 | * Arguments: |
| 2544 | * hw device structure |
| 2545 | * Returns: |
| 2546 | * 0 success |
| 2547 | * >0 f/w reported error - f/w status code |
| 2548 | * <0 driver reported error |
| 2549 | * |
| 2550 | * Side effects: |
| 2551 | * |
| 2552 | * Call context: |
| 2553 | * process |
| 2554 | ----------------------------------------------------------------*/ |
Richard Kennedy | 7b7e7e8 | 2008-11-03 11:16:09 +0000 | [diff] [blame] | 2555 | |
Mithlesh Thukral | 297f06c | 2009-06-10 19:36:11 +0530 | [diff] [blame] | 2556 | int hfa384x_drvr_start(hfa384x_t *hw) |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 2557 | { |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 2558 | int result, result1, result2; |
| 2559 | u16 status; |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 2560 | |
| 2561 | might_sleep(); |
| 2562 | |
Richard Kennedy | 7b7e7e8 | 2008-11-03 11:16:09 +0000 | [diff] [blame] | 2563 | /* Clear endpoint stalls - but only do this if the endpoint |
| 2564 | * is showing a stall status. Some prism2 cards seem to behave |
| 2565 | * badly if a clear_halt is called when the endpoint is already |
| 2566 | * ok |
| 2567 | */ |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 2568 | result = |
| 2569 | usb_get_status(hw->usb, USB_RECIP_ENDPOINT, hw->endp_in, &status); |
Richard Kennedy | 7b7e7e8 | 2008-11-03 11:16:09 +0000 | [diff] [blame] | 2570 | if (result < 0) { |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 2571 | printk(KERN_ERR "Cannot get bulk in endpoint status.\n"); |
Richard Kennedy | 7b7e7e8 | 2008-11-03 11:16:09 +0000 | [diff] [blame] | 2572 | goto done; |
| 2573 | } |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 2574 | if ((status == 1) && usb_clear_halt(hw->usb, hw->endp_in)) |
| 2575 | printk(KERN_ERR "Failed to reset bulk in endpoint.\n"); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 2576 | |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 2577 | result = |
| 2578 | usb_get_status(hw->usb, USB_RECIP_ENDPOINT, hw->endp_out, &status); |
Richard Kennedy | 7b7e7e8 | 2008-11-03 11:16:09 +0000 | [diff] [blame] | 2579 | if (result < 0) { |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 2580 | printk(KERN_ERR "Cannot get bulk out endpoint status.\n"); |
Richard Kennedy | 7b7e7e8 | 2008-11-03 11:16:09 +0000 | [diff] [blame] | 2581 | goto done; |
| 2582 | } |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 2583 | if ((status == 1) && usb_clear_halt(hw->usb, hw->endp_out)) |
| 2584 | printk(KERN_ERR "Failed to reset bulk out endpoint.\n"); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 2585 | |
| 2586 | /* Synchronous unlink, in case we're trying to restart the driver */ |
| 2587 | usb_kill_urb(&hw->rx_urb); |
| 2588 | |
| 2589 | /* Post the IN urb */ |
| 2590 | result = submit_rx_urb(hw, GFP_KERNEL); |
| 2591 | if (result != 0) { |
Moritz Muehlenhoff | edbd606 | 2009-01-25 21:55:00 +0100 | [diff] [blame] | 2592 | printk(KERN_ERR |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 2593 | "Fatal, failed to submit RX URB, result=%d\n", result); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 2594 | goto done; |
| 2595 | } |
| 2596 | |
Richard Kennedy | 7b7e7e8 | 2008-11-03 11:16:09 +0000 | [diff] [blame] | 2597 | /* Call initialize twice, with a 1 second sleep in between. |
| 2598 | * This is a nasty work-around since many prism2 cards seem to |
| 2599 | * need time to settle after an init from cold. The second |
| 2600 | * call to initialize in theory is not necessary - but we call |
| 2601 | * it anyway as a double insurance policy: |
| 2602 | * 1) If the first init should fail, the second may well succeed |
| 2603 | * and the card can still be used |
| 2604 | * 2) It helps ensures all is well with the card after the first |
| 2605 | * init and settle time. |
| 2606 | */ |
| 2607 | result1 = hfa384x_cmd_initialize(hw); |
| 2608 | msleep(1000); |
| 2609 | result = result2 = hfa384x_cmd_initialize(hw); |
| 2610 | if (result1 != 0) { |
| 2611 | if (result2 != 0) { |
Moritz Muehlenhoff | edbd606 | 2009-01-25 21:55:00 +0100 | [diff] [blame] | 2612 | printk(KERN_ERR |
Edgardo Hames | 4ffab68 | 2010-03-15 23:00:40 -0300 | [diff] [blame] | 2613 | "cmd_initialize() failed on two attempts, results %d and %d\n", |
| 2614 | result1, result2); |
Richard Kennedy | 7b7e7e8 | 2008-11-03 11:16:09 +0000 | [diff] [blame] | 2615 | usb_kill_urb(&hw->rx_urb); |
| 2616 | goto done; |
| 2617 | } else { |
Mithlesh Thukral | 75f49e0 | 2009-05-25 19:06:16 +0530 | [diff] [blame] | 2618 | pr_debug("First cmd_initialize() failed (result %d),\n", |
| 2619 | result1); |
Edgardo Hames | 4ffab68 | 2010-03-15 23:00:40 -0300 | [diff] [blame] | 2620 | pr_debug("but second attempt succeeded. All should be ok\n"); |
Richard Kennedy | 7b7e7e8 | 2008-11-03 11:16:09 +0000 | [diff] [blame] | 2621 | } |
| 2622 | } else if (result2 != 0) { |
Edgardo Hames | 4ffab68 | 2010-03-15 23:00:40 -0300 | [diff] [blame] | 2623 | printk(KERN_WARNING "First cmd_initialize() succeeded, but second attempt failed (result=%d)\n", |
| 2624 | result2); |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 2625 | printk(KERN_WARNING |
| 2626 | "Most likely the card will be functional\n"); |
| 2627 | goto done; |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 2628 | } |
| 2629 | |
| 2630 | hw->state = HFA384x_STATE_RUNNING; |
| 2631 | |
| 2632 | done: |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 2633 | return result; |
| 2634 | } |
| 2635 | |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 2636 | /*---------------------------------------------------------------- |
| 2637 | * hfa384x_drvr_stop |
| 2638 | * |
| 2639 | * Shuts down the MAC to the point where it is safe to unload the |
| 2640 | * driver. Any subsystem that may be holding a data or function |
| 2641 | * ptr into the driver must be cleared/deinitialized. |
| 2642 | * |
| 2643 | * Arguments: |
| 2644 | * hw device structure |
| 2645 | * Returns: |
| 2646 | * 0 success |
| 2647 | * >0 f/w reported error - f/w status code |
| 2648 | * <0 driver reported error |
| 2649 | * |
| 2650 | * Side effects: |
| 2651 | * |
| 2652 | * Call context: |
| 2653 | * process |
| 2654 | ----------------------------------------------------------------*/ |
Mithlesh Thukral | 297f06c | 2009-06-10 19:36:11 +0530 | [diff] [blame] | 2655 | int hfa384x_drvr_stop(hfa384x_t *hw) |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 2656 | { |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 2657 | int result = 0; |
| 2658 | int i; |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 2659 | |
| 2660 | might_sleep(); |
| 2661 | |
| 2662 | /* There's no need for spinlocks here. The USB "disconnect" |
| 2663 | * function sets this "removed" flag and then calls us. |
| 2664 | */ |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 2665 | if (!hw->wlandev->hwremoved) { |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 2666 | /* Call initialize to leave the MAC in its 'reset' state */ |
| 2667 | hfa384x_cmd_initialize(hw); |
| 2668 | |
| 2669 | /* Cancel the rxurb */ |
| 2670 | usb_kill_urb(&hw->rx_urb); |
| 2671 | } |
| 2672 | |
| 2673 | hw->link_status = HFA384x_LINK_NOTCONNECTED; |
| 2674 | hw->state = HFA384x_STATE_INIT; |
| 2675 | |
| 2676 | del_timer_sync(&hw->commsqual_timer); |
| 2677 | |
| 2678 | /* Clear all the port status */ |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 2679 | for (i = 0; i < HFA384x_NUMPORTS_MAX; i++) |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 2680 | hw->port_enabled[i] = 0; |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 2681 | |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 2682 | return result; |
| 2683 | } |
| 2684 | |
| 2685 | /*---------------------------------------------------------------- |
| 2686 | * hfa384x_drvr_txframe |
| 2687 | * |
| 2688 | * Takes a frame from prism2sta and queues it for transmission. |
| 2689 | * |
| 2690 | * Arguments: |
| 2691 | * hw device structure |
| 2692 | * skb packet buffer struct. Contains an 802.11 |
| 2693 | * data frame. |
| 2694 | * p80211_hdr points to the 802.11 header for the packet. |
| 2695 | * Returns: |
| 2696 | * 0 Success and more buffs available |
| 2697 | * 1 Success but no more buffs |
| 2698 | * 2 Allocation failure |
| 2699 | * 4 Buffer full or queue busy |
| 2700 | * |
| 2701 | * Side effects: |
| 2702 | * |
| 2703 | * Call context: |
| 2704 | * interrupt |
| 2705 | ----------------------------------------------------------------*/ |
Mithlesh Thukral | 297f06c | 2009-06-10 19:36:11 +0530 | [diff] [blame] | 2706 | int hfa384x_drvr_txframe(hfa384x_t *hw, struct sk_buff *skb, |
Edgardo Hames | 93df38e | 2010-07-30 22:51:55 -0300 | [diff] [blame] | 2707 | union p80211_hdr *p80211_hdr, |
Edgardo Hames | 51e4896 | 2010-07-31 13:06:52 -0300 | [diff] [blame] | 2708 | struct p80211_metawep *p80211_wep) |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 2709 | { |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 2710 | int usbpktlen = sizeof(hfa384x_tx_frame_t); |
| 2711 | int result; |
| 2712 | int ret; |
| 2713 | char *ptr; |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 2714 | |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 2715 | if (hw->tx_urb.status == -EINPROGRESS) { |
Moritz Muehlenhoff | 9b9556e | 2009-01-25 21:55:01 +0100 | [diff] [blame] | 2716 | printk(KERN_WARNING "TX URB already in use\n"); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 2717 | result = 3; |
| 2718 | goto exit; |
| 2719 | } |
| 2720 | |
| 2721 | /* Build Tx frame structure */ |
| 2722 | /* Set up the control field */ |
| 2723 | memset(&hw->txbuff.txfrm.desc, 0, sizeof(hw->txbuff.txfrm.desc)); |
| 2724 | |
| 2725 | /* Setup the usb type field */ |
Moritz Muehlenhoff | 18c7f79 | 2009-02-18 19:50:07 +0100 | [diff] [blame] | 2726 | hw->txbuff.type = cpu_to_le16(HFA384x_USB_TXFRM); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 2727 | |
| 2728 | /* Set up the sw_support field to identify this frame */ |
| 2729 | hw->txbuff.txfrm.desc.sw_support = 0x0123; |
| 2730 | |
| 2731 | /* Tx complete and Tx exception disable per dleach. Might be causing |
| 2732 | * buf depletion |
| 2733 | */ |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 2734 | /* #define DOEXC SLP -- doboth breaks horribly under load, doexc less so. */ |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 2735 | #if defined(DOBOTH) |
| 2736 | hw->txbuff.txfrm.desc.tx_control = |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 2737 | HFA384x_TX_MACPORT_SET(0) | HFA384x_TX_STRUCTYPE_SET(1) | |
| 2738 | HFA384x_TX_TXEX_SET(1) | HFA384x_TX_TXOK_SET(1); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 2739 | #elif defined(DOEXC) |
| 2740 | hw->txbuff.txfrm.desc.tx_control = |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 2741 | HFA384x_TX_MACPORT_SET(0) | HFA384x_TX_STRUCTYPE_SET(1) | |
| 2742 | HFA384x_TX_TXEX_SET(1) | HFA384x_TX_TXOK_SET(0); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 2743 | #else |
| 2744 | hw->txbuff.txfrm.desc.tx_control = |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 2745 | HFA384x_TX_MACPORT_SET(0) | HFA384x_TX_STRUCTYPE_SET(1) | |
| 2746 | HFA384x_TX_TXEX_SET(0) | HFA384x_TX_TXOK_SET(0); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 2747 | #endif |
| 2748 | hw->txbuff.txfrm.desc.tx_control = |
Moritz Muehlenhoff | 18c7f79 | 2009-02-18 19:50:07 +0100 | [diff] [blame] | 2749 | cpu_to_le16(hw->txbuff.txfrm.desc.tx_control); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 2750 | |
| 2751 | /* copy the header over to the txdesc */ |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 2752 | memcpy(&(hw->txbuff.txfrm.desc.frame_control), p80211_hdr, |
Edgardo Hames | 93df38e | 2010-07-30 22:51:55 -0300 | [diff] [blame] | 2753 | sizeof(union p80211_hdr)); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 2754 | |
| 2755 | /* if we're using host WEP, increase size by IV+ICV */ |
| 2756 | if (p80211_wep->data) { |
Moritz Muehlenhoff | 18c7f79 | 2009-02-18 19:50:07 +0100 | [diff] [blame] | 2757 | hw->txbuff.txfrm.desc.data_len = cpu_to_le16(skb->len + 8); |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 2758 | usbpktlen += 8; |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 2759 | } else { |
Moritz Muehlenhoff | 18c7f79 | 2009-02-18 19:50:07 +0100 | [diff] [blame] | 2760 | hw->txbuff.txfrm.desc.data_len = cpu_to_le16(skb->len); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 2761 | } |
| 2762 | |
| 2763 | usbpktlen += skb->len; |
| 2764 | |
| 2765 | /* copy over the WEP IV if we are using host WEP */ |
| 2766 | ptr = hw->txbuff.txfrm.data; |
| 2767 | if (p80211_wep->data) { |
| 2768 | memcpy(ptr, p80211_wep->iv, sizeof(p80211_wep->iv)); |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 2769 | ptr += sizeof(p80211_wep->iv); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 2770 | memcpy(ptr, p80211_wep->data, skb->len); |
| 2771 | } else { |
| 2772 | memcpy(ptr, skb->data, skb->len); |
| 2773 | } |
| 2774 | /* copy over the packet data */ |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 2775 | ptr += skb->len; |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 2776 | |
| 2777 | /* copy over the WEP ICV if we are using host WEP */ |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 2778 | if (p80211_wep->data) |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 2779 | memcpy(ptr, p80211_wep->icv, sizeof(p80211_wep->icv)); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 2780 | |
| 2781 | /* Send the USB packet */ |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 2782 | usb_fill_bulk_urb(&(hw->tx_urb), hw->usb, |
| 2783 | hw->endp_out, |
| 2784 | &(hw->txbuff), ROUNDUP64(usbpktlen), |
| 2785 | hfa384x_usbout_callback, hw->wlandev); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 2786 | hw->tx_urb.transfer_flags |= USB_QUEUE_BULK; |
| 2787 | |
| 2788 | result = 1; |
| 2789 | ret = submit_tx_urb(hw, &hw->tx_urb, GFP_ATOMIC); |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 2790 | if (ret != 0) { |
| 2791 | printk(KERN_ERR "submit_tx_urb() failed, error=%d\n", ret); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 2792 | result = 3; |
| 2793 | } |
| 2794 | |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 2795 | exit: |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 2796 | return result; |
| 2797 | } |
| 2798 | |
Mithlesh Thukral | 297f06c | 2009-06-10 19:36:11 +0530 | [diff] [blame] | 2799 | void hfa384x_tx_timeout(wlandevice_t *wlandev) |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 2800 | { |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 2801 | hfa384x_t *hw = wlandev->priv; |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 2802 | unsigned long flags; |
| 2803 | |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 2804 | spin_lock_irqsave(&hw->ctlxq.lock, flags); |
| 2805 | |
Dan Carpenter | 5945789 | 2010-06-17 14:08:47 +0200 | [diff] [blame] | 2806 | if (!hw->wlandev->hwremoved) { |
| 2807 | int sched; |
| 2808 | |
| 2809 | sched = !test_and_set_bit(WORK_TX_HALT, &hw->usb_flags); |
| 2810 | sched |= !test_and_set_bit(WORK_RX_HALT, &hw->usb_flags); |
| 2811 | if (sched) |
| 2812 | schedule_work(&hw->usb_work); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 2813 | } |
| 2814 | |
| 2815 | spin_unlock_irqrestore(&hw->ctlxq.lock, flags); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 2816 | } |
| 2817 | |
| 2818 | /*---------------------------------------------------------------- |
| 2819 | * hfa384x_usbctlx_reaper_task |
| 2820 | * |
| 2821 | * Tasklet to delete dead CTLX objects |
| 2822 | * |
| 2823 | * Arguments: |
| 2824 | * data ptr to a hfa384x_t |
| 2825 | * |
| 2826 | * Returns: |
| 2827 | * |
| 2828 | * Call context: |
| 2829 | * Interrupt |
| 2830 | ----------------------------------------------------------------*/ |
| 2831 | static void hfa384x_usbctlx_reaper_task(unsigned long data) |
| 2832 | { |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 2833 | hfa384x_t *hw = (hfa384x_t *) data; |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 2834 | struct list_head *entry; |
| 2835 | struct list_head *temp; |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 2836 | unsigned long flags; |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 2837 | |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 2838 | spin_lock_irqsave(&hw->ctlxq.lock, flags); |
| 2839 | |
| 2840 | /* This list is guaranteed to be empty if someone |
| 2841 | * has unplugged the adapter. |
| 2842 | */ |
| 2843 | list_for_each_safe(entry, temp, &hw->ctlxq.reapable) { |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 2844 | hfa384x_usbctlx_t *ctlx; |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 2845 | |
| 2846 | ctlx = list_entry(entry, hfa384x_usbctlx_t, list); |
| 2847 | list_del(&ctlx->list); |
| 2848 | kfree(ctlx); |
| 2849 | } |
| 2850 | |
| 2851 | spin_unlock_irqrestore(&hw->ctlxq.lock, flags); |
| 2852 | |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 2853 | } |
| 2854 | |
| 2855 | /*---------------------------------------------------------------- |
| 2856 | * hfa384x_usbctlx_completion_task |
| 2857 | * |
| 2858 | * Tasklet to call completion handlers for returned CTLXs |
| 2859 | * |
| 2860 | * Arguments: |
| 2861 | * data ptr to hfa384x_t |
| 2862 | * |
| 2863 | * Returns: |
| 2864 | * Nothing |
| 2865 | * |
| 2866 | * Call context: |
| 2867 | * Interrupt |
| 2868 | ----------------------------------------------------------------*/ |
| 2869 | static void hfa384x_usbctlx_completion_task(unsigned long data) |
| 2870 | { |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 2871 | hfa384x_t *hw = (hfa384x_t *) data; |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 2872 | struct list_head *entry; |
| 2873 | struct list_head *temp; |
| 2874 | unsigned long flags; |
| 2875 | |
| 2876 | int reap = 0; |
| 2877 | |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 2878 | spin_lock_irqsave(&hw->ctlxq.lock, flags); |
| 2879 | |
| 2880 | /* This list is guaranteed to be empty if someone |
| 2881 | * has unplugged the adapter ... |
| 2882 | */ |
| 2883 | list_for_each_safe(entry, temp, &hw->ctlxq.completing) { |
| 2884 | hfa384x_usbctlx_t *ctlx; |
| 2885 | |
| 2886 | ctlx = list_entry(entry, hfa384x_usbctlx_t, list); |
| 2887 | |
| 2888 | /* Call the completion function that this |
| 2889 | * command was assigned, assuming it has one. |
| 2890 | */ |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 2891 | if (ctlx->cmdcb != NULL) { |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 2892 | spin_unlock_irqrestore(&hw->ctlxq.lock, flags); |
| 2893 | ctlx->cmdcb(hw, ctlx); |
| 2894 | spin_lock_irqsave(&hw->ctlxq.lock, flags); |
| 2895 | |
| 2896 | /* Make sure we don't try and complete |
| 2897 | * this CTLX more than once! |
| 2898 | */ |
| 2899 | ctlx->cmdcb = NULL; |
| 2900 | |
| 2901 | /* Did someone yank the adapter out |
| 2902 | * while our list was (briefly) unlocked? |
| 2903 | */ |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 2904 | if (hw->wlandev->hwremoved) { |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 2905 | reap = 0; |
| 2906 | break; |
| 2907 | } |
| 2908 | } |
| 2909 | |
| 2910 | /* |
| 2911 | * "Reapable" CTLXs are ones which don't have any |
| 2912 | * threads waiting for them to die. Hence they must |
| 2913 | * be delivered to The Reaper! |
| 2914 | */ |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 2915 | if (ctlx->reapable) { |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 2916 | /* Move the CTLX off the "completing" list (hopefully) |
| 2917 | * on to the "reapable" list where the reaper task |
| 2918 | * can find it. And "reapable" means that this CTLX |
| 2919 | * isn't sitting on a wait-queue somewhere. |
| 2920 | */ |
| 2921 | list_move_tail(&ctlx->list, &hw->ctlxq.reapable); |
| 2922 | reap = 1; |
| 2923 | } |
| 2924 | |
| 2925 | complete(&ctlx->done); |
| 2926 | } |
| 2927 | spin_unlock_irqrestore(&hw->ctlxq.lock, flags); |
| 2928 | |
| 2929 | if (reap) |
| 2930 | tasklet_schedule(&hw->reaper_bh); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 2931 | } |
| 2932 | |
| 2933 | /*---------------------------------------------------------------- |
| 2934 | * unlocked_usbctlx_cancel_async |
| 2935 | * |
| 2936 | * Mark the CTLX dead asynchronously, and ensure that the |
| 2937 | * next command on the queue is run afterwards. |
| 2938 | * |
| 2939 | * Arguments: |
| 2940 | * hw ptr to the hfa384x_t structure |
| 2941 | * ctlx ptr to a CTLX structure |
| 2942 | * |
| 2943 | * Returns: |
| 2944 | * 0 the CTLX's URB is inactive |
| 2945 | * -EINPROGRESS the URB is currently being unlinked |
| 2946 | * |
| 2947 | * Call context: |
| 2948 | * Either process or interrupt, but presumably interrupt |
| 2949 | ----------------------------------------------------------------*/ |
Mithlesh Thukral | 297f06c | 2009-06-10 19:36:11 +0530 | [diff] [blame] | 2950 | static int unlocked_usbctlx_cancel_async(hfa384x_t *hw, |
| 2951 | hfa384x_usbctlx_t *ctlx) |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 2952 | { |
| 2953 | int ret; |
| 2954 | |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 2955 | /* |
| 2956 | * Try to delete the URB containing our request packet. |
| 2957 | * If we succeed, then its completion handler will be |
| 2958 | * called with a status of -ECONNRESET. |
| 2959 | */ |
| 2960 | hw->ctlx_urb.transfer_flags |= URB_ASYNC_UNLINK; |
| 2961 | ret = usb_unlink_urb(&hw->ctlx_urb); |
| 2962 | |
| 2963 | if (ret != -EINPROGRESS) { |
| 2964 | /* |
| 2965 | * The OUT URB had either already completed |
| 2966 | * or was still in the pending queue, so the |
| 2967 | * URB's completion function will not be called. |
| 2968 | * We will have to complete the CTLX ourselves. |
| 2969 | */ |
| 2970 | ctlx->state = CTLX_REQ_FAILED; |
| 2971 | unlocked_usbctlx_complete(hw, ctlx); |
| 2972 | ret = 0; |
| 2973 | } |
| 2974 | |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 2975 | return ret; |
| 2976 | } |
| 2977 | |
| 2978 | /*---------------------------------------------------------------- |
| 2979 | * unlocked_usbctlx_complete |
| 2980 | * |
| 2981 | * A CTLX has completed. It may have been successful, it may not |
| 2982 | * have been. At this point, the CTLX should be quiescent. The URBs |
| 2983 | * aren't active and the timers should have been stopped. |
| 2984 | * |
| 2985 | * The CTLX is migrated to the "completing" queue, and the completing |
| 2986 | * tasklet is scheduled. |
| 2987 | * |
| 2988 | * Arguments: |
| 2989 | * hw ptr to a hfa384x_t structure |
| 2990 | * ctlx ptr to a ctlx structure |
| 2991 | * |
| 2992 | * Returns: |
| 2993 | * nothing |
| 2994 | * |
| 2995 | * Side effects: |
| 2996 | * |
| 2997 | * Call context: |
| 2998 | * Either, assume interrupt |
| 2999 | ----------------------------------------------------------------*/ |
Mithlesh Thukral | 297f06c | 2009-06-10 19:36:11 +0530 | [diff] [blame] | 3000 | static void unlocked_usbctlx_complete(hfa384x_t *hw, hfa384x_usbctlx_t *ctlx) |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3001 | { |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3002 | /* Timers have been stopped, and ctlx should be in |
| 3003 | * a terminal state. Retire it from the "active" |
| 3004 | * queue. |
| 3005 | */ |
| 3006 | list_move_tail(&ctlx->list, &hw->ctlxq.completing); |
| 3007 | tasklet_schedule(&hw->completion_bh); |
| 3008 | |
| 3009 | switch (ctlx->state) { |
| 3010 | case CTLX_COMPLETE: |
| 3011 | case CTLX_REQ_FAILED: |
| 3012 | /* This are the correct terminating states. */ |
| 3013 | break; |
| 3014 | |
| 3015 | default: |
Moritz Muehlenhoff | edbd606 | 2009-01-25 21:55:00 +0100 | [diff] [blame] | 3016 | printk(KERN_ERR "CTLX[%d] not in a terminating state(%s)\n", |
Mithlesh Thukral | 75f49e0 | 2009-05-25 19:06:16 +0530 | [diff] [blame] | 3017 | le16_to_cpu(ctlx->outbuf.type), ctlxstr(ctlx->state)); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3018 | break; |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 3019 | } /* switch */ |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3020 | } |
| 3021 | |
| 3022 | /*---------------------------------------------------------------- |
| 3023 | * hfa384x_usbctlxq_run |
| 3024 | * |
| 3025 | * Checks to see if the head item is running. If not, starts it. |
| 3026 | * |
| 3027 | * Arguments: |
| 3028 | * hw ptr to hfa384x_t |
| 3029 | * |
| 3030 | * Returns: |
| 3031 | * nothing |
| 3032 | * |
| 3033 | * Side effects: |
| 3034 | * |
| 3035 | * Call context: |
| 3036 | * any |
| 3037 | ----------------------------------------------------------------*/ |
Mithlesh Thukral | 297f06c | 2009-06-10 19:36:11 +0530 | [diff] [blame] | 3038 | static void hfa384x_usbctlxq_run(hfa384x_t *hw) |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3039 | { |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 3040 | unsigned long flags; |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3041 | |
| 3042 | /* acquire lock */ |
| 3043 | spin_lock_irqsave(&hw->ctlxq.lock, flags); |
| 3044 | |
| 3045 | /* Only one active CTLX at any one time, because there's no |
| 3046 | * other (reliable) way to match the response URB to the |
| 3047 | * correct CTLX. |
| 3048 | * |
| 3049 | * Don't touch any of these CTLXs if the hardware |
| 3050 | * has been removed or the USB subsystem is stalled. |
| 3051 | */ |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 3052 | if (!list_empty(&hw->ctlxq.active) || |
| 3053 | test_bit(WORK_TX_HALT, &hw->usb_flags) || hw->wlandev->hwremoved) |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3054 | goto unlock; |
| 3055 | |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 3056 | while (!list_empty(&hw->ctlxq.pending)) { |
| 3057 | hfa384x_usbctlx_t *head; |
| 3058 | int result; |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3059 | |
| 3060 | /* This is the first pending command */ |
| 3061 | head = list_entry(hw->ctlxq.pending.next, |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 3062 | hfa384x_usbctlx_t, list); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3063 | |
| 3064 | /* We need to split this off to avoid a race condition */ |
| 3065 | list_move_tail(&head->list, &hw->ctlxq.active); |
| 3066 | |
| 3067 | /* Fill the out packet */ |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 3068 | usb_fill_bulk_urb(&(hw->ctlx_urb), hw->usb, |
| 3069 | hw->endp_out, |
| 3070 | &(head->outbuf), ROUNDUP64(head->outbufsize), |
| 3071 | hfa384x_ctlxout_callback, hw); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3072 | hw->ctlx_urb.transfer_flags |= USB_QUEUE_BULK; |
| 3073 | |
Andrew Elwell | 3f4b4e7 | 2010-02-18 23:56:13 +0100 | [diff] [blame] | 3074 | /* Now submit the URB and update the CTLX's state */ |
Svenne Krap | 46800b2 | 2010-02-14 18:59:42 +0100 | [diff] [blame] | 3075 | result = SUBMIT_URB(&hw->ctlx_urb, GFP_ATOMIC); |
| 3076 | if (result == 0) { |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3077 | /* This CTLX is now running on the active queue */ |
| 3078 | head->state = CTLX_REQ_SUBMITTED; |
| 3079 | |
| 3080 | /* Start the OUT wait timer */ |
| 3081 | hw->req_timer_done = 0; |
| 3082 | hw->reqtimer.expires = jiffies + HZ; |
| 3083 | add_timer(&hw->reqtimer); |
| 3084 | |
| 3085 | /* Start the IN wait timer */ |
| 3086 | hw->resp_timer_done = 0; |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 3087 | hw->resptimer.expires = jiffies + 2 * HZ; |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3088 | add_timer(&hw->resptimer); |
| 3089 | |
| 3090 | break; |
| 3091 | } |
| 3092 | |
| 3093 | if (result == -EPIPE) { |
| 3094 | /* The OUT pipe needs resetting, so put |
| 3095 | * this CTLX back in the "pending" queue |
| 3096 | * and schedule a reset ... |
| 3097 | */ |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 3098 | printk(KERN_WARNING |
| 3099 | "%s tx pipe stalled: requesting reset\n", |
| 3100 | hw->wlandev->netdev->name); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3101 | list_move(&head->list, &hw->ctlxq.pending); |
| 3102 | set_bit(WORK_TX_HALT, &hw->usb_flags); |
| 3103 | schedule_work(&hw->usb_work); |
| 3104 | break; |
| 3105 | } |
| 3106 | |
| 3107 | if (result == -ESHUTDOWN) { |
Moritz Muehlenhoff | 9b9556e | 2009-01-25 21:55:01 +0100 | [diff] [blame] | 3108 | printk(KERN_WARNING "%s urb shutdown!\n", |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 3109 | hw->wlandev->netdev->name); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3110 | break; |
| 3111 | } |
| 3112 | |
Moritz Muehlenhoff | edbd606 | 2009-01-25 21:55:00 +0100 | [diff] [blame] | 3113 | printk(KERN_ERR "Failed to submit CTLX[%d]: error=%d\n", |
Moritz Muehlenhoff | 18c7f79 | 2009-02-18 19:50:07 +0100 | [diff] [blame] | 3114 | le16_to_cpu(head->outbuf.type), result); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3115 | unlocked_usbctlx_complete(hw, head); |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 3116 | } /* while */ |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3117 | |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 3118 | unlock: |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3119 | spin_unlock_irqrestore(&hw->ctlxq.lock, flags); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3120 | } |
| 3121 | |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3122 | /*---------------------------------------------------------------- |
| 3123 | * hfa384x_usbin_callback |
| 3124 | * |
| 3125 | * Callback for URBs on the BULKIN endpoint. |
| 3126 | * |
| 3127 | * Arguments: |
| 3128 | * urb ptr to the completed urb |
| 3129 | * |
| 3130 | * Returns: |
| 3131 | * nothing |
| 3132 | * |
| 3133 | * Side effects: |
| 3134 | * |
| 3135 | * Call context: |
| 3136 | * interrupt |
| 3137 | ----------------------------------------------------------------*/ |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3138 | static void hfa384x_usbin_callback(struct urb *urb) |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3139 | { |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 3140 | wlandevice_t *wlandev = urb->context; |
| 3141 | hfa384x_t *hw; |
| 3142 | hfa384x_usbin_t *usbin = (hfa384x_usbin_t *) urb->transfer_buffer; |
| 3143 | struct sk_buff *skb = NULL; |
| 3144 | int result; |
| 3145 | int urb_status; |
| 3146 | u16 type; |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3147 | |
| 3148 | enum USBIN_ACTION { |
| 3149 | HANDLE, |
| 3150 | RESUBMIT, |
| 3151 | ABORT |
| 3152 | } action; |
| 3153 | |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 3154 | if (!wlandev || !wlandev->netdev || wlandev->hwremoved) |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3155 | goto exit; |
| 3156 | |
| 3157 | hw = wlandev->priv; |
| 3158 | if (!hw) |
| 3159 | goto exit; |
| 3160 | |
| 3161 | skb = hw->rx_urb_skb; |
Stoyan Gaydarov | 2961f24 | 2009-03-10 00:10:27 -0500 | [diff] [blame] | 3162 | BUG_ON(!skb || (skb->data != urb->transfer_buffer)); |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 3163 | |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3164 | hw->rx_urb_skb = NULL; |
| 3165 | |
| 3166 | /* Check for error conditions within the URB */ |
| 3167 | switch (urb->status) { |
| 3168 | case 0: |
| 3169 | action = HANDLE; |
| 3170 | |
| 3171 | /* Check for short packet */ |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 3172 | if (urb->actual_length == 0) { |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3173 | ++(wlandev->linux_stats.rx_errors); |
| 3174 | ++(wlandev->linux_stats.rx_length_errors); |
| 3175 | action = RESUBMIT; |
| 3176 | } |
| 3177 | break; |
| 3178 | |
| 3179 | case -EPIPE: |
Moritz Muehlenhoff | 9b9556e | 2009-01-25 21:55:01 +0100 | [diff] [blame] | 3180 | printk(KERN_WARNING "%s rx pipe stalled: requesting reset\n", |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 3181 | wlandev->netdev->name); |
| 3182 | if (!test_and_set_bit(WORK_RX_HALT, &hw->usb_flags)) |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3183 | schedule_work(&hw->usb_work); |
| 3184 | ++(wlandev->linux_stats.rx_errors); |
| 3185 | action = ABORT; |
| 3186 | break; |
| 3187 | |
| 3188 | case -EILSEQ: |
| 3189 | case -ETIMEDOUT: |
| 3190 | case -EPROTO: |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 3191 | if (!test_and_set_bit(THROTTLE_RX, &hw->usb_flags) && |
| 3192 | !timer_pending(&hw->throttle)) { |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3193 | mod_timer(&hw->throttle, jiffies + THROTTLE_JIFFIES); |
| 3194 | } |
| 3195 | ++(wlandev->linux_stats.rx_errors); |
| 3196 | action = ABORT; |
| 3197 | break; |
| 3198 | |
| 3199 | case -EOVERFLOW: |
| 3200 | ++(wlandev->linux_stats.rx_over_errors); |
| 3201 | action = RESUBMIT; |
| 3202 | break; |
| 3203 | |
| 3204 | case -ENODEV: |
| 3205 | case -ESHUTDOWN: |
Moritz Muehlenhoff | a7cf7ba | 2009-02-08 02:01:00 +0100 | [diff] [blame] | 3206 | pr_debug("status=%d, device removed.\n", urb->status); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3207 | action = ABORT; |
| 3208 | break; |
| 3209 | |
| 3210 | case -ENOENT: |
| 3211 | case -ECONNRESET: |
Mithlesh Thukral | 75f49e0 | 2009-05-25 19:06:16 +0530 | [diff] [blame] | 3212 | pr_debug("status=%d, urb explicitly unlinked.\n", urb->status); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3213 | action = ABORT; |
| 3214 | break; |
| 3215 | |
| 3216 | default: |
Moritz Muehlenhoff | a7cf7ba | 2009-02-08 02:01:00 +0100 | [diff] [blame] | 3217 | pr_debug("urb status=%d, transfer flags=0x%x\n", |
Mithlesh Thukral | 75f49e0 | 2009-05-25 19:06:16 +0530 | [diff] [blame] | 3218 | urb->status, urb->transfer_flags); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3219 | ++(wlandev->linux_stats.rx_errors); |
| 3220 | action = RESUBMIT; |
| 3221 | break; |
| 3222 | } |
| 3223 | |
| 3224 | urb_status = urb->status; |
| 3225 | |
| 3226 | if (action != ABORT) { |
| 3227 | /* Repost the RX URB */ |
| 3228 | result = submit_rx_urb(hw, GFP_ATOMIC); |
| 3229 | |
| 3230 | if (result != 0) { |
Moritz Muehlenhoff | edbd606 | 2009-01-25 21:55:00 +0100 | [diff] [blame] | 3231 | printk(KERN_ERR |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 3232 | "Fatal, failed to resubmit rx_urb. error=%d\n", |
| 3233 | result); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3234 | } |
| 3235 | } |
| 3236 | |
| 3237 | /* Handle any USB-IN packet */ |
| 3238 | /* Note: the check of the sw_support field, the type field doesn't |
| 3239 | * have bit 12 set like the docs suggest. |
| 3240 | */ |
Moritz Muehlenhoff | 18c7f79 | 2009-02-18 19:50:07 +0100 | [diff] [blame] | 3241 | type = le16_to_cpu(usbin->type); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3242 | if (HFA384x_USB_ISRXFRM(type)) { |
| 3243 | if (action == HANDLE) { |
| 3244 | if (usbin->txfrm.desc.sw_support == 0x0123) { |
| 3245 | hfa384x_usbin_txcompl(wlandev, usbin); |
| 3246 | } else { |
| 3247 | skb_put(skb, sizeof(*usbin)); |
| 3248 | hfa384x_usbin_rx(wlandev, skb); |
| 3249 | skb = NULL; |
| 3250 | } |
| 3251 | } |
| 3252 | goto exit; |
| 3253 | } |
| 3254 | if (HFA384x_USB_ISTXFRM(type)) { |
| 3255 | if (action == HANDLE) |
| 3256 | hfa384x_usbin_txcompl(wlandev, usbin); |
| 3257 | goto exit; |
| 3258 | } |
| 3259 | switch (type) { |
| 3260 | case HFA384x_USB_INFOFRM: |
| 3261 | if (action == ABORT) |
| 3262 | goto exit; |
| 3263 | if (action == HANDLE) |
| 3264 | hfa384x_usbin_info(wlandev, usbin); |
| 3265 | break; |
| 3266 | |
| 3267 | case HFA384x_USB_CMDRESP: |
| 3268 | case HFA384x_USB_WRIDRESP: |
| 3269 | case HFA384x_USB_RRIDRESP: |
| 3270 | case HFA384x_USB_WMEMRESP: |
| 3271 | case HFA384x_USB_RMEMRESP: |
| 3272 | /* ALWAYS, ALWAYS, ALWAYS handle this CTLX!!!! */ |
| 3273 | hfa384x_usbin_ctlx(hw, usbin, urb_status); |
| 3274 | break; |
| 3275 | |
| 3276 | case HFA384x_USB_BUFAVAIL: |
Moritz Muehlenhoff | a7cf7ba | 2009-02-08 02:01:00 +0100 | [diff] [blame] | 3277 | pr_debug("Received BUFAVAIL packet, frmlen=%d\n", |
Mithlesh Thukral | 75f49e0 | 2009-05-25 19:06:16 +0530 | [diff] [blame] | 3278 | usbin->bufavail.frmlen); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3279 | break; |
| 3280 | |
| 3281 | case HFA384x_USB_ERROR: |
Moritz Muehlenhoff | a7cf7ba | 2009-02-08 02:01:00 +0100 | [diff] [blame] | 3282 | pr_debug("Received USB_ERROR packet, errortype=%d\n", |
Mithlesh Thukral | 75f49e0 | 2009-05-25 19:06:16 +0530 | [diff] [blame] | 3283 | usbin->usberror.errortype); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3284 | break; |
| 3285 | |
| 3286 | default: |
Mithlesh Thukral | 75f49e0 | 2009-05-25 19:06:16 +0530 | [diff] [blame] | 3287 | pr_debug("Unrecognized USBIN packet, type=%x, status=%d\n", |
| 3288 | usbin->type, urb_status); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3289 | break; |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 3290 | } /* switch */ |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3291 | |
| 3292 | exit: |
| 3293 | |
| 3294 | if (skb) |
| 3295 | dev_kfree_skb(skb); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3296 | } |
| 3297 | |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3298 | /*---------------------------------------------------------------- |
| 3299 | * hfa384x_usbin_ctlx |
| 3300 | * |
| 3301 | * We've received a URB containing a Prism2 "response" message. |
| 3302 | * This message needs to be matched up with a CTLX on the active |
| 3303 | * queue and our state updated accordingly. |
| 3304 | * |
| 3305 | * Arguments: |
| 3306 | * hw ptr to hfa384x_t |
| 3307 | * usbin ptr to USB IN packet |
| 3308 | * urb_status status of this Bulk-In URB |
| 3309 | * |
| 3310 | * Returns: |
| 3311 | * nothing |
| 3312 | * |
| 3313 | * Side effects: |
| 3314 | * |
| 3315 | * Call context: |
| 3316 | * interrupt |
| 3317 | ----------------------------------------------------------------*/ |
Mithlesh Thukral | 297f06c | 2009-06-10 19:36:11 +0530 | [diff] [blame] | 3318 | static void hfa384x_usbin_ctlx(hfa384x_t *hw, hfa384x_usbin_t *usbin, |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3319 | int urb_status) |
| 3320 | { |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 3321 | hfa384x_usbctlx_t *ctlx; |
| 3322 | int run_queue = 0; |
| 3323 | unsigned long flags; |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3324 | |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3325 | retry: |
| 3326 | spin_lock_irqsave(&hw->ctlxq.lock, flags); |
| 3327 | |
| 3328 | /* There can be only one CTLX on the active queue |
| 3329 | * at any one time, and this is the CTLX that the |
| 3330 | * timers are waiting for. |
| 3331 | */ |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 3332 | if (list_empty(&hw->ctlxq.active)) |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3333 | goto unlock; |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3334 | |
| 3335 | /* Remove the "response timeout". It's possible that |
| 3336 | * we are already too late, and that the timeout is |
| 3337 | * already running. And that's just too bad for us, |
| 3338 | * because we could lose our CTLX from the active |
| 3339 | * queue here ... |
| 3340 | */ |
| 3341 | if (del_timer(&hw->resptimer) == 0) { |
| 3342 | if (hw->resp_timer_done == 0) { |
| 3343 | spin_unlock_irqrestore(&hw->ctlxq.lock, flags); |
| 3344 | goto retry; |
| 3345 | } |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 3346 | } else { |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3347 | hw->resp_timer_done = 1; |
| 3348 | } |
| 3349 | |
| 3350 | ctlx = get_active_ctlx(hw); |
| 3351 | |
| 3352 | if (urb_status != 0) { |
| 3353 | /* |
| 3354 | * Bad CTLX, so get rid of it. But we only |
| 3355 | * remove it from the active queue if we're no |
| 3356 | * longer expecting the OUT URB to complete. |
| 3357 | */ |
| 3358 | if (unlocked_usbctlx_cancel_async(hw, ctlx) == 0) |
| 3359 | run_queue = 1; |
| 3360 | } else { |
Moritz Muehlenhoff | 18c7f79 | 2009-02-18 19:50:07 +0100 | [diff] [blame] | 3361 | const u16 intype = (usbin->type & ~cpu_to_le16(0x8000)); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3362 | |
| 3363 | /* |
| 3364 | * Check that our message is what we're expecting ... |
| 3365 | */ |
| 3366 | if (ctlx->outbuf.type != intype) { |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 3367 | printk(KERN_WARNING |
| 3368 | "Expected IN[%d], received IN[%d] - ignored.\n", |
Moritz Muehlenhoff | 18c7f79 | 2009-02-18 19:50:07 +0100 | [diff] [blame] | 3369 | le16_to_cpu(ctlx->outbuf.type), |
| 3370 | le16_to_cpu(intype)); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3371 | goto unlock; |
| 3372 | } |
| 3373 | |
| 3374 | /* This URB has succeeded, so grab the data ... */ |
| 3375 | memcpy(&ctlx->inbuf, usbin, sizeof(ctlx->inbuf)); |
| 3376 | |
| 3377 | switch (ctlx->state) { |
| 3378 | case CTLX_REQ_SUBMITTED: |
| 3379 | /* |
| 3380 | * We have received our response URB before |
| 3381 | * our request has been acknowledged. Odd, |
| 3382 | * but our OUT URB is still alive... |
| 3383 | */ |
Edgardo Hames | 4ffab68 | 2010-03-15 23:00:40 -0300 | [diff] [blame] | 3384 | pr_debug("Causality violation: please reboot Universe\n"); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3385 | ctlx->state = CTLX_RESP_COMPLETE; |
| 3386 | break; |
| 3387 | |
| 3388 | case CTLX_REQ_COMPLETE: |
| 3389 | /* |
| 3390 | * This is the usual path: our request |
| 3391 | * has already been acknowledged, and |
| 3392 | * now we have received the reply too. |
| 3393 | */ |
| 3394 | ctlx->state = CTLX_COMPLETE; |
| 3395 | unlocked_usbctlx_complete(hw, ctlx); |
| 3396 | run_queue = 1; |
| 3397 | break; |
| 3398 | |
| 3399 | default: |
| 3400 | /* |
| 3401 | * Throw this CTLX away ... |
| 3402 | */ |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 3403 | printk(KERN_ERR |
| 3404 | "Matched IN URB, CTLX[%d] in invalid state(%s)." |
| 3405 | " Discarded.\n", |
Moritz Muehlenhoff | 18c7f79 | 2009-02-18 19:50:07 +0100 | [diff] [blame] | 3406 | le16_to_cpu(ctlx->outbuf.type), |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 3407 | ctlxstr(ctlx->state)); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3408 | if (unlocked_usbctlx_cancel_async(hw, ctlx) == 0) |
| 3409 | run_queue = 1; |
| 3410 | break; |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 3411 | } /* switch */ |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3412 | } |
| 3413 | |
| 3414 | unlock: |
| 3415 | spin_unlock_irqrestore(&hw->ctlxq.lock, flags); |
| 3416 | |
| 3417 | if (run_queue) |
| 3418 | hfa384x_usbctlxq_run(hw); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3419 | } |
| 3420 | |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3421 | /*---------------------------------------------------------------- |
| 3422 | * hfa384x_usbin_txcompl |
| 3423 | * |
| 3424 | * At this point we have the results of a previous transmit. |
| 3425 | * |
| 3426 | * Arguments: |
| 3427 | * wlandev wlan device |
| 3428 | * usbin ptr to the usb transfer buffer |
| 3429 | * |
| 3430 | * Returns: |
| 3431 | * nothing |
| 3432 | * |
| 3433 | * Side effects: |
| 3434 | * |
| 3435 | * Call context: |
| 3436 | * interrupt |
| 3437 | ----------------------------------------------------------------*/ |
Mithlesh Thukral | 297f06c | 2009-06-10 19:36:11 +0530 | [diff] [blame] | 3438 | static void hfa384x_usbin_txcompl(wlandevice_t *wlandev, |
| 3439 | hfa384x_usbin_t *usbin) |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3440 | { |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 3441 | u16 status; |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3442 | |
Edgardo Hames | 631c8de | 2010-03-08 17:02:37 -0800 | [diff] [blame] | 3443 | status = le16_to_cpu(usbin->type); /* yeah I know it says type... */ |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3444 | |
| 3445 | /* Was there an error? */ |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 3446 | if (HFA384x_TXSTATUS_ISERROR(status)) |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3447 | prism2sta_ev_txexc(wlandev, status); |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 3448 | else |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3449 | prism2sta_ev_tx(wlandev, status); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3450 | } |
| 3451 | |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3452 | /*---------------------------------------------------------------- |
| 3453 | * hfa384x_usbin_rx |
| 3454 | * |
| 3455 | * At this point we have a successful received a rx frame packet. |
| 3456 | * |
| 3457 | * Arguments: |
| 3458 | * wlandev wlan device |
| 3459 | * usbin ptr to the usb transfer buffer |
| 3460 | * |
| 3461 | * Returns: |
| 3462 | * nothing |
| 3463 | * |
| 3464 | * Side effects: |
| 3465 | * |
| 3466 | * Call context: |
| 3467 | * interrupt |
| 3468 | ----------------------------------------------------------------*/ |
Mithlesh Thukral | 297f06c | 2009-06-10 19:36:11 +0530 | [diff] [blame] | 3469 | static void hfa384x_usbin_rx(wlandevice_t *wlandev, struct sk_buff *skb) |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3470 | { |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 3471 | hfa384x_usbin_t *usbin = (hfa384x_usbin_t *) skb->data; |
| 3472 | hfa384x_t *hw = wlandev->priv; |
| 3473 | int hdrlen; |
Edgardo Hames | 51e4896 | 2010-07-31 13:06:52 -0300 | [diff] [blame] | 3474 | struct p80211_rxmeta *rxmeta; |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 3475 | u16 data_len; |
| 3476 | u16 fc; |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3477 | |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3478 | /* Byte order convert once up front. */ |
Moritz Muehlenhoff | 18c7f79 | 2009-02-18 19:50:07 +0100 | [diff] [blame] | 3479 | usbin->rxfrm.desc.status = le16_to_cpu(usbin->rxfrm.desc.status); |
| 3480 | usbin->rxfrm.desc.time = le32_to_cpu(usbin->rxfrm.desc.time); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3481 | |
| 3482 | /* Now handle frame based on port# */ |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 3483 | switch (HFA384x_RXSTATUS_MACPORT_GET(usbin->rxfrm.desc.status)) { |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3484 | case 0: |
Moritz Muehlenhoff | ae26230 | 2009-01-21 22:00:45 +0100 | [diff] [blame] | 3485 | fc = le16_to_cpu(usbin->rxfrm.desc.frame_control); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3486 | |
| 3487 | /* If exclude and we receive an unencrypted, drop it */ |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 3488 | if ((wlandev->hostwep & HOSTWEP_EXCLUDEUNENCRYPTED) && |
| 3489 | !WLAN_GET_FC_ISWEP(fc)) { |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3490 | goto done; |
| 3491 | } |
| 3492 | |
Moritz Muehlenhoff | 18c7f79 | 2009-02-18 19:50:07 +0100 | [diff] [blame] | 3493 | data_len = le16_to_cpu(usbin->rxfrm.desc.data_len); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3494 | |
| 3495 | /* How much header data do we have? */ |
| 3496 | hdrlen = p80211_headerlen(fc); |
| 3497 | |
| 3498 | /* Pull off the descriptor */ |
| 3499 | skb_pull(skb, sizeof(hfa384x_rx_frame_t)); |
| 3500 | |
| 3501 | /* Now shunt the header block up against the data block |
| 3502 | * with an "overlapping" copy |
| 3503 | */ |
| 3504 | memmove(skb_push(skb, hdrlen), |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 3505 | &usbin->rxfrm.desc.frame_control, hdrlen); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3506 | |
| 3507 | skb->dev = wlandev->netdev; |
| 3508 | skb->dev->last_rx = jiffies; |
| 3509 | |
| 3510 | /* And set the frame length properly */ |
| 3511 | skb_trim(skb, data_len + hdrlen); |
| 3512 | |
| 3513 | /* The prism2 series does not return the CRC */ |
| 3514 | memset(skb_put(skb, WLAN_CRC_LEN), 0xff, WLAN_CRC_LEN); |
| 3515 | |
| 3516 | skb_reset_mac_header(skb); |
| 3517 | |
| 3518 | /* Attach the rxmeta, set some stuff */ |
| 3519 | p80211skb_rxmeta_attach(wlandev, skb); |
| 3520 | rxmeta = P80211SKB_RXMETA(skb); |
| 3521 | rxmeta->mactime = usbin->rxfrm.desc.time; |
| 3522 | rxmeta->rxrate = usbin->rxfrm.desc.rate; |
| 3523 | rxmeta->signal = usbin->rxfrm.desc.signal - hw->dbmadjust; |
| 3524 | rxmeta->noise = usbin->rxfrm.desc.silence - hw->dbmadjust; |
| 3525 | |
| 3526 | prism2sta_ev_rx(wlandev, skb); |
| 3527 | |
| 3528 | break; |
| 3529 | |
| 3530 | case 7: |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 3531 | if (!HFA384x_RXSTATUS_ISFCSERR(usbin->rxfrm.desc.status)) { |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3532 | /* Copy to wlansnif skb */ |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 3533 | hfa384x_int_rxmonitor(wlandev, &usbin->rxfrm); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3534 | dev_kfree_skb(skb); |
| 3535 | } else { |
Mithlesh Thukral | 75f49e0 | 2009-05-25 19:06:16 +0530 | [diff] [blame] | 3536 | pr_debug("Received monitor frame: FCSerr set\n"); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3537 | } |
| 3538 | break; |
| 3539 | |
| 3540 | default: |
Moritz Muehlenhoff | 9b9556e | 2009-01-25 21:55:01 +0100 | [diff] [blame] | 3541 | printk(KERN_WARNING "Received frame on unsupported port=%d\n", |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 3542 | HFA384x_RXSTATUS_MACPORT_GET(usbin->rxfrm.desc.status)); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3543 | goto done; |
| 3544 | break; |
| 3545 | } |
| 3546 | |
| 3547 | done: |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3548 | return; |
| 3549 | } |
| 3550 | |
| 3551 | /*---------------------------------------------------------------- |
| 3552 | * hfa384x_int_rxmonitor |
| 3553 | * |
| 3554 | * Helper function for int_rx. Handles monitor frames. |
| 3555 | * Note that this function allocates space for the FCS and sets it |
| 3556 | * to 0xffffffff. The hfa384x doesn't give us the FCS value but the |
| 3557 | * higher layers expect it. 0xffffffff is used as a flag to indicate |
| 3558 | * the FCS is bogus. |
| 3559 | * |
| 3560 | * Arguments: |
| 3561 | * wlandev wlan device structure |
| 3562 | * rxfrm rx descriptor read from card in int_rx |
| 3563 | * |
| 3564 | * Returns: |
| 3565 | * nothing |
| 3566 | * |
| 3567 | * Side effects: |
| 3568 | * Allocates an skb and passes it up via the PF_PACKET interface. |
| 3569 | * Call context: |
| 3570 | * interrupt |
| 3571 | ----------------------------------------------------------------*/ |
Mithlesh Thukral | 297f06c | 2009-06-10 19:36:11 +0530 | [diff] [blame] | 3572 | static void hfa384x_int_rxmonitor(wlandevice_t *wlandev, |
| 3573 | hfa384x_usb_rxfrm_t *rxfrm) |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3574 | { |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 3575 | hfa384x_rx_frame_t *rxdesc = &(rxfrm->desc); |
| 3576 | unsigned int hdrlen = 0; |
| 3577 | unsigned int datalen = 0; |
| 3578 | unsigned int skblen = 0; |
| 3579 | u8 *datap; |
| 3580 | u16 fc; |
| 3581 | struct sk_buff *skb; |
| 3582 | hfa384x_t *hw = wlandev->priv; |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3583 | |
Edgardo Hames | 631c8de | 2010-03-08 17:02:37 -0800 | [diff] [blame] | 3584 | /* Remember the status, time, and data_len fields are in host order */ |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3585 | /* Figure out how big the frame is */ |
Moritz Muehlenhoff | ae26230 | 2009-01-21 22:00:45 +0100 | [diff] [blame] | 3586 | fc = le16_to_cpu(rxdesc->frame_control); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3587 | hdrlen = p80211_headerlen(fc); |
Moritz Muehlenhoff | 18c7f79 | 2009-02-18 19:50:07 +0100 | [diff] [blame] | 3588 | datalen = le16_to_cpu(rxdesc->data_len); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3589 | |
| 3590 | /* Allocate an ind message+framesize skb */ |
Edgardo Hames | 51e4896 | 2010-07-31 13:06:52 -0300 | [diff] [blame] | 3591 | skblen = sizeof(struct p80211_caphdr) + hdrlen + datalen + WLAN_CRC_LEN; |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3592 | |
| 3593 | /* sanity check the length */ |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 3594 | if (skblen > |
Edgardo Hames | 51e4896 | 2010-07-31 13:06:52 -0300 | [diff] [blame] | 3595 | (sizeof(struct p80211_caphdr) + |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 3596 | WLAN_HDR_A4_LEN + WLAN_DATA_MAXLEN + WLAN_CRC_LEN)) { |
Moritz Muehlenhoff | a7cf7ba | 2009-02-08 02:01:00 +0100 | [diff] [blame] | 3597 | pr_debug("overlen frm: len=%zd\n", |
Edgardo Hames | 51e4896 | 2010-07-31 13:06:52 -0300 | [diff] [blame] | 3598 | skblen - sizeof(struct p80211_caphdr)); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3599 | } |
| 3600 | |
Svenne Krap | 46800b2 | 2010-02-14 18:59:42 +0100 | [diff] [blame] | 3601 | skb = dev_alloc_skb(skblen); |
| 3602 | if (skb == NULL) { |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 3603 | printk(KERN_ERR |
| 3604 | "alloc_skb failed trying to allocate %d bytes\n", |
| 3605 | skblen); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3606 | return; |
| 3607 | } |
| 3608 | |
| 3609 | /* only prepend the prism header if in the right mode */ |
| 3610 | if ((wlandev->netdev->type == ARPHRD_IEEE80211_PRISM) && |
Solomon Peachy | cbec30c | 2008-10-29 10:42:57 -0400 | [diff] [blame] | 3611 | (hw->sniffhdr != 0)) { |
Edgardo Hames | 51e4896 | 2010-07-31 13:06:52 -0300 | [diff] [blame] | 3612 | struct p80211_caphdr *caphdr; |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3613 | /* The NEW header format! */ |
Edgardo Hames | 51e4896 | 2010-07-31 13:06:52 -0300 | [diff] [blame] | 3614 | datap = skb_put(skb, sizeof(struct p80211_caphdr)); |
| 3615 | caphdr = (struct p80211_caphdr *) datap; |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3616 | |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 3617 | caphdr->version = htonl(P80211CAPTURE_VERSION); |
Edgardo Hames | 51e4896 | 2010-07-31 13:06:52 -0300 | [diff] [blame] | 3618 | caphdr->length = htonl(sizeof(struct p80211_caphdr)); |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 3619 | caphdr->mactime = __cpu_to_be64(rxdesc->time) * 1000; |
| 3620 | caphdr->hosttime = __cpu_to_be64(jiffies); |
| 3621 | caphdr->phytype = htonl(4); /* dss_dot11_b */ |
| 3622 | caphdr->channel = htonl(hw->sniff_channel); |
| 3623 | caphdr->datarate = htonl(rxdesc->rate); |
| 3624 | caphdr->antenna = htonl(0); /* unknown */ |
| 3625 | caphdr->priority = htonl(0); /* unknown */ |
| 3626 | caphdr->ssi_type = htonl(3); /* rssi_raw */ |
| 3627 | caphdr->ssi_signal = htonl(rxdesc->signal); |
| 3628 | caphdr->ssi_noise = htonl(rxdesc->silence); |
| 3629 | caphdr->preamble = htonl(0); /* unknown */ |
| 3630 | caphdr->encoding = htonl(1); /* cck */ |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3631 | } |
| 3632 | |
Edgardo Hames | 631c8de | 2010-03-08 17:02:37 -0800 | [diff] [blame] | 3633 | /* Copy the 802.11 header to the skb |
| 3634 | (ctl frames may be less than a full header) */ |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3635 | datap = skb_put(skb, hdrlen); |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 3636 | memcpy(datap, &(rxdesc->frame_control), hdrlen); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3637 | |
| 3638 | /* If any, copy the data from the card to the skb */ |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 3639 | if (datalen > 0) { |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3640 | datap = skb_put(skb, datalen); |
| 3641 | memcpy(datap, rxfrm->data, datalen); |
| 3642 | |
| 3643 | /* check for unencrypted stuff if WEP bit set. */ |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 3644 | if (*(datap - hdrlen + 1) & 0x40) /* wep set */ |
| 3645 | if ((*(datap) == 0xaa) && (*(datap + 1) == 0xaa)) |
Edgardo Hames | 631c8de | 2010-03-08 17:02:37 -0800 | [diff] [blame] | 3646 | /* clear wep; it's the 802.2 header! */ |
| 3647 | *(datap - hdrlen + 1) &= 0xbf; |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3648 | } |
| 3649 | |
| 3650 | if (hw->sniff_fcs) { |
| 3651 | /* Set the FCS */ |
| 3652 | datap = skb_put(skb, WLAN_CRC_LEN); |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 3653 | memset(datap, 0xff, WLAN_CRC_LEN); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3654 | } |
| 3655 | |
| 3656 | /* pass it back up */ |
| 3657 | prism2sta_ev_rx(wlandev, skb); |
| 3658 | |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3659 | return; |
| 3660 | } |
| 3661 | |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3662 | /*---------------------------------------------------------------- |
| 3663 | * hfa384x_usbin_info |
| 3664 | * |
| 3665 | * At this point we have a successful received a Prism2 info frame. |
| 3666 | * |
| 3667 | * Arguments: |
| 3668 | * wlandev wlan device |
| 3669 | * usbin ptr to the usb transfer buffer |
| 3670 | * |
| 3671 | * Returns: |
| 3672 | * nothing |
| 3673 | * |
| 3674 | * Side effects: |
| 3675 | * |
| 3676 | * Call context: |
| 3677 | * interrupt |
| 3678 | ----------------------------------------------------------------*/ |
Mithlesh Thukral | 297f06c | 2009-06-10 19:36:11 +0530 | [diff] [blame] | 3679 | static void hfa384x_usbin_info(wlandevice_t *wlandev, hfa384x_usbin_t *usbin) |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3680 | { |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 3681 | usbin->infofrm.info.framelen = |
Moritz Muehlenhoff | 18c7f79 | 2009-02-18 19:50:07 +0100 | [diff] [blame] | 3682 | le16_to_cpu(usbin->infofrm.info.framelen); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3683 | prism2sta_ev_info(wlandev, &usbin->infofrm.info); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3684 | } |
| 3685 | |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3686 | /*---------------------------------------------------------------- |
| 3687 | * hfa384x_usbout_callback |
| 3688 | * |
| 3689 | * Callback for URBs on the BULKOUT endpoint. |
| 3690 | * |
| 3691 | * Arguments: |
| 3692 | * urb ptr to the completed urb |
| 3693 | * |
| 3694 | * Returns: |
| 3695 | * nothing |
| 3696 | * |
| 3697 | * Side effects: |
| 3698 | * |
| 3699 | * Call context: |
| 3700 | * interrupt |
| 3701 | ----------------------------------------------------------------*/ |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3702 | static void hfa384x_usbout_callback(struct urb *urb) |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3703 | { |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 3704 | wlandevice_t *wlandev = urb->context; |
| 3705 | hfa384x_usbout_t *usbout = urb->transfer_buffer; |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3706 | |
| 3707 | #ifdef DEBUG_USB |
| 3708 | dbprint_urb(urb); |
| 3709 | #endif |
| 3710 | |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 3711 | if (wlandev && wlandev->netdev) { |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3712 | |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 3713 | switch (urb->status) { |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3714 | case 0: |
| 3715 | hfa384x_usbout_tx(wlandev, usbout); |
| 3716 | break; |
| 3717 | |
| 3718 | case -EPIPE: |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 3719 | { |
| 3720 | hfa384x_t *hw = wlandev->priv; |
| 3721 | printk(KERN_WARNING |
| 3722 | "%s tx pipe stalled: requesting reset\n", |
| 3723 | wlandev->netdev->name); |
| 3724 | if (!test_and_set_bit |
| 3725 | (WORK_TX_HALT, &hw->usb_flags)) |
| 3726 | schedule_work(&hw->usb_work); |
| 3727 | ++(wlandev->linux_stats.tx_errors); |
| 3728 | break; |
| 3729 | } |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3730 | |
| 3731 | case -EPROTO: |
| 3732 | case -ETIMEDOUT: |
| 3733 | case -EILSEQ: |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 3734 | { |
| 3735 | hfa384x_t *hw = wlandev->priv; |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3736 | |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 3737 | if (!test_and_set_bit |
| 3738 | (THROTTLE_TX, &hw->usb_flags) |
| 3739 | && !timer_pending(&hw->throttle)) { |
| 3740 | mod_timer(&hw->throttle, |
| 3741 | jiffies + THROTTLE_JIFFIES); |
| 3742 | } |
| 3743 | ++(wlandev->linux_stats.tx_errors); |
| 3744 | netif_stop_queue(wlandev->netdev); |
| 3745 | break; |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3746 | } |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3747 | |
| 3748 | case -ENOENT: |
| 3749 | case -ESHUTDOWN: |
| 3750 | /* Ignorable errors */ |
| 3751 | break; |
| 3752 | |
| 3753 | default: |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 3754 | printk(KERN_INFO "unknown urb->status=%d\n", |
| 3755 | urb->status); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3756 | ++(wlandev->linux_stats.tx_errors); |
| 3757 | break; |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 3758 | } /* switch */ |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3759 | } |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3760 | } |
| 3761 | |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3762 | /*---------------------------------------------------------------- |
| 3763 | * hfa384x_ctlxout_callback |
| 3764 | * |
| 3765 | * Callback for control data on the BULKOUT endpoint. |
| 3766 | * |
| 3767 | * Arguments: |
| 3768 | * urb ptr to the completed urb |
| 3769 | * |
| 3770 | * Returns: |
| 3771 | * nothing |
| 3772 | * |
| 3773 | * Side effects: |
| 3774 | * |
| 3775 | * Call context: |
| 3776 | * interrupt |
| 3777 | ----------------------------------------------------------------*/ |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3778 | static void hfa384x_ctlxout_callback(struct urb *urb) |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3779 | { |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 3780 | hfa384x_t *hw = urb->context; |
| 3781 | int delete_resptimer = 0; |
| 3782 | int timer_ok = 1; |
| 3783 | int run_queue = 0; |
| 3784 | hfa384x_usbctlx_t *ctlx; |
| 3785 | unsigned long flags; |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3786 | |
Moritz Muehlenhoff | a7cf7ba | 2009-02-08 02:01:00 +0100 | [diff] [blame] | 3787 | pr_debug("urb->status=%d\n", urb->status); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3788 | #ifdef DEBUG_USB |
| 3789 | dbprint_urb(urb); |
| 3790 | #endif |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 3791 | if ((urb->status == -ESHUTDOWN) || |
| 3792 | (urb->status == -ENODEV) || (hw == NULL)) |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3793 | goto done; |
| 3794 | |
| 3795 | retry: |
| 3796 | spin_lock_irqsave(&hw->ctlxq.lock, flags); |
| 3797 | |
| 3798 | /* |
| 3799 | * Only one CTLX at a time on the "active" list, and |
| 3800 | * none at all if we are unplugged. However, we can |
| 3801 | * rely on the disconnect function to clean everything |
| 3802 | * up if someone unplugged the adapter. |
| 3803 | */ |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 3804 | if (list_empty(&hw->ctlxq.active)) { |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3805 | spin_unlock_irqrestore(&hw->ctlxq.lock, flags); |
| 3806 | goto done; |
| 3807 | } |
| 3808 | |
| 3809 | /* |
| 3810 | * Having something on the "active" queue means |
| 3811 | * that we have timers to worry about ... |
| 3812 | */ |
| 3813 | if (del_timer(&hw->reqtimer) == 0) { |
| 3814 | if (hw->req_timer_done == 0) { |
| 3815 | /* |
| 3816 | * This timer was actually running while we |
| 3817 | * were trying to delete it. Let it terminate |
| 3818 | * gracefully instead. |
| 3819 | */ |
| 3820 | spin_unlock_irqrestore(&hw->ctlxq.lock, flags); |
| 3821 | goto retry; |
| 3822 | } |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 3823 | } else { |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3824 | hw->req_timer_done = 1; |
| 3825 | } |
| 3826 | |
| 3827 | ctlx = get_active_ctlx(hw); |
| 3828 | |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 3829 | if (urb->status == 0) { |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3830 | /* Request portion of a CTLX is successful */ |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 3831 | switch (ctlx->state) { |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3832 | case CTLX_REQ_SUBMITTED: |
| 3833 | /* This OUT-ACK received before IN */ |
| 3834 | ctlx->state = CTLX_REQ_COMPLETE; |
| 3835 | break; |
| 3836 | |
| 3837 | case CTLX_RESP_COMPLETE: |
| 3838 | /* IN already received before this OUT-ACK, |
| 3839 | * so this command must now be complete. |
| 3840 | */ |
| 3841 | ctlx->state = CTLX_COMPLETE; |
| 3842 | unlocked_usbctlx_complete(hw, ctlx); |
| 3843 | run_queue = 1; |
| 3844 | break; |
| 3845 | |
| 3846 | default: |
| 3847 | /* This is NOT a valid CTLX "success" state! */ |
Edgardo Hames | 4ffab68 | 2010-03-15 23:00:40 -0300 | [diff] [blame] | 3848 | printk(KERN_ERR |
| 3849 | "Illegal CTLX[%d] success state(%s, %d) in OUT URB\n", |
Edgardo Hames | 631c8de | 2010-03-08 17:02:37 -0800 | [diff] [blame] | 3850 | le16_to_cpu(ctlx->outbuf.type), |
| 3851 | ctlxstr(ctlx->state), urb->status); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3852 | break; |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 3853 | } /* switch */ |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3854 | } else { |
| 3855 | /* If the pipe has stalled then we need to reset it */ |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 3856 | if ((urb->status == -EPIPE) && |
| 3857 | !test_and_set_bit(WORK_TX_HALT, &hw->usb_flags)) { |
| 3858 | printk(KERN_WARNING |
| 3859 | "%s tx pipe stalled: requesting reset\n", |
| 3860 | hw->wlandev->netdev->name); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3861 | schedule_work(&hw->usb_work); |
| 3862 | } |
| 3863 | |
| 3864 | /* If someone cancels the OUT URB then its status |
| 3865 | * should be either -ECONNRESET or -ENOENT. |
| 3866 | */ |
| 3867 | ctlx->state = CTLX_REQ_FAILED; |
| 3868 | unlocked_usbctlx_complete(hw, ctlx); |
| 3869 | delete_resptimer = 1; |
| 3870 | run_queue = 1; |
| 3871 | } |
| 3872 | |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 3873 | delresp: |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3874 | if (delete_resptimer) { |
Svenne Krap | 46800b2 | 2010-02-14 18:59:42 +0100 | [diff] [blame] | 3875 | timer_ok = del_timer(&hw->resptimer); |
Andrew Elwell | 3f4b4e7 | 2010-02-18 23:56:13 +0100 | [diff] [blame] | 3876 | if (timer_ok != 0) |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3877 | hw->resp_timer_done = 1; |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3878 | } |
| 3879 | |
| 3880 | spin_unlock_irqrestore(&hw->ctlxq.lock, flags); |
| 3881 | |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 3882 | if (!timer_ok && (hw->resp_timer_done == 0)) { |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3883 | spin_lock_irqsave(&hw->ctlxq.lock, flags); |
| 3884 | goto delresp; |
| 3885 | } |
| 3886 | |
| 3887 | if (run_queue) |
| 3888 | hfa384x_usbctlxq_run(hw); |
| 3889 | |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 3890 | done: |
| 3891 | ; |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3892 | } |
| 3893 | |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3894 | /*---------------------------------------------------------------- |
| 3895 | * hfa384x_usbctlx_reqtimerfn |
| 3896 | * |
| 3897 | * Timer response function for CTLX request timeouts. If this |
| 3898 | * function is called, it means that the callback for the OUT |
| 3899 | * URB containing a Prism2.x XXX_Request was never called. |
| 3900 | * |
| 3901 | * Arguments: |
| 3902 | * data a ptr to the hfa384x_t |
| 3903 | * |
| 3904 | * Returns: |
| 3905 | * nothing |
| 3906 | * |
| 3907 | * Side effects: |
| 3908 | * |
| 3909 | * Call context: |
| 3910 | * interrupt |
| 3911 | ----------------------------------------------------------------*/ |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 3912 | static void hfa384x_usbctlx_reqtimerfn(unsigned long data) |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3913 | { |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 3914 | hfa384x_t *hw = (hfa384x_t *) data; |
| 3915 | unsigned long flags; |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3916 | |
| 3917 | spin_lock_irqsave(&hw->ctlxq.lock, flags); |
| 3918 | |
| 3919 | hw->req_timer_done = 1; |
| 3920 | |
| 3921 | /* Removing the hardware automatically empties |
| 3922 | * the active list ... |
| 3923 | */ |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 3924 | if (!list_empty(&hw->ctlxq.active)) { |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3925 | /* |
| 3926 | * We must ensure that our URB is removed from |
| 3927 | * the system, if it hasn't already expired. |
| 3928 | */ |
| 3929 | hw->ctlx_urb.transfer_flags |= URB_ASYNC_UNLINK; |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 3930 | if (usb_unlink_urb(&hw->ctlx_urb) == -EINPROGRESS) { |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3931 | hfa384x_usbctlx_t *ctlx = get_active_ctlx(hw); |
| 3932 | |
| 3933 | ctlx->state = CTLX_REQ_FAILED; |
| 3934 | |
| 3935 | /* This URB was active, but has now been |
| 3936 | * cancelled. It will now have a status of |
| 3937 | * -ECONNRESET in the callback function. |
| 3938 | * |
| 3939 | * We are cancelling this CTLX, so we're |
| 3940 | * not going to need to wait for a response. |
| 3941 | * The URB's callback function will check |
| 3942 | * that this timer is truly dead. |
| 3943 | */ |
| 3944 | if (del_timer(&hw->resptimer) != 0) |
| 3945 | hw->resp_timer_done = 1; |
| 3946 | } |
| 3947 | } |
| 3948 | |
| 3949 | spin_unlock_irqrestore(&hw->ctlxq.lock, flags); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3950 | } |
| 3951 | |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3952 | /*---------------------------------------------------------------- |
| 3953 | * hfa384x_usbctlx_resptimerfn |
| 3954 | * |
| 3955 | * Timer response function for CTLX response timeouts. If this |
| 3956 | * function is called, it means that the callback for the IN |
| 3957 | * URB containing a Prism2.x XXX_Response was never called. |
| 3958 | * |
| 3959 | * Arguments: |
| 3960 | * data a ptr to the hfa384x_t |
| 3961 | * |
| 3962 | * Returns: |
| 3963 | * nothing |
| 3964 | * |
| 3965 | * Side effects: |
| 3966 | * |
| 3967 | * Call context: |
| 3968 | * interrupt |
| 3969 | ----------------------------------------------------------------*/ |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 3970 | static void hfa384x_usbctlx_resptimerfn(unsigned long data) |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3971 | { |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 3972 | hfa384x_t *hw = (hfa384x_t *) data; |
| 3973 | unsigned long flags; |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3974 | |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3975 | spin_lock_irqsave(&hw->ctlxq.lock, flags); |
| 3976 | |
| 3977 | hw->resp_timer_done = 1; |
| 3978 | |
| 3979 | /* The active list will be empty if the |
| 3980 | * adapter has been unplugged ... |
| 3981 | */ |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 3982 | if (!list_empty(&hw->ctlxq.active)) { |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3983 | hfa384x_usbctlx_t *ctlx = get_active_ctlx(hw); |
| 3984 | |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 3985 | if (unlocked_usbctlx_cancel_async(hw, ctlx) == 0) { |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3986 | spin_unlock_irqrestore(&hw->ctlxq.lock, flags); |
| 3987 | hfa384x_usbctlxq_run(hw); |
| 3988 | goto done; |
| 3989 | } |
| 3990 | } |
| 3991 | |
| 3992 | spin_unlock_irqrestore(&hw->ctlxq.lock, flags); |
| 3993 | |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 3994 | done: |
| 3995 | ; |
Moritz Muehlenhoff | 8a251b5 | 2009-01-21 22:00:44 +0100 | [diff] [blame] | 3996 | |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 3997 | } |
| 3998 | |
| 3999 | /*---------------------------------------------------------------- |
| 4000 | * hfa384x_usb_throttlefn |
| 4001 | * |
| 4002 | * |
| 4003 | * Arguments: |
| 4004 | * data ptr to hw |
| 4005 | * |
| 4006 | * Returns: |
| 4007 | * Nothing |
| 4008 | * |
| 4009 | * Side effects: |
| 4010 | * |
| 4011 | * Call context: |
| 4012 | * Interrupt |
| 4013 | ----------------------------------------------------------------*/ |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 4014 | static void hfa384x_usb_throttlefn(unsigned long data) |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 4015 | { |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 4016 | hfa384x_t *hw = (hfa384x_t *) data; |
| 4017 | unsigned long flags; |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 4018 | |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 4019 | spin_lock_irqsave(&hw->ctlxq.lock, flags); |
| 4020 | |
| 4021 | /* |
| 4022 | * We need to check BOTH the RX and the TX throttle controls, |
| 4023 | * so we use the bitwise OR instead of the logical OR. |
| 4024 | */ |
Moritz Muehlenhoff | a7cf7ba | 2009-02-08 02:01:00 +0100 | [diff] [blame] | 4025 | pr_debug("flags=0x%lx\n", hw->usb_flags); |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 4026 | if (!hw->wlandev->hwremoved && |
| 4027 | ((test_and_clear_bit(THROTTLE_RX, &hw->usb_flags) && |
| 4028 | !test_and_set_bit(WORK_RX_RESUME, &hw->usb_flags)) |
| 4029 | | |
| 4030 | (test_and_clear_bit(THROTTLE_TX, &hw->usb_flags) && |
| 4031 | !test_and_set_bit(WORK_TX_RESUME, &hw->usb_flags)) |
| 4032 | )) { |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 4033 | schedule_work(&hw->usb_work); |
| 4034 | } |
| 4035 | |
| 4036 | spin_unlock_irqrestore(&hw->ctlxq.lock, flags); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 4037 | } |
| 4038 | |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 4039 | /*---------------------------------------------------------------- |
| 4040 | * hfa384x_usbctlx_submit |
| 4041 | * |
| 4042 | * Called from the doxxx functions to submit a CTLX to the queue |
| 4043 | * |
| 4044 | * Arguments: |
| 4045 | * hw ptr to the hw struct |
| 4046 | * ctlx ctlx structure to enqueue |
| 4047 | * |
| 4048 | * Returns: |
| 4049 | * -ENODEV if the adapter is unplugged |
| 4050 | * 0 |
| 4051 | * |
| 4052 | * Side effects: |
| 4053 | * |
| 4054 | * Call context: |
| 4055 | * process or interrupt |
| 4056 | ----------------------------------------------------------------*/ |
Mithlesh Thukral | 297f06c | 2009-06-10 19:36:11 +0530 | [diff] [blame] | 4057 | static int hfa384x_usbctlx_submit(hfa384x_t *hw, hfa384x_usbctlx_t *ctlx) |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 4058 | { |
| 4059 | unsigned long flags; |
| 4060 | int ret; |
| 4061 | |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 4062 | spin_lock_irqsave(&hw->ctlxq.lock, flags); |
| 4063 | |
| 4064 | if (hw->wlandev->hwremoved) { |
| 4065 | spin_unlock_irqrestore(&hw->ctlxq.lock, flags); |
| 4066 | ret = -ENODEV; |
| 4067 | } else { |
| 4068 | ctlx->state = CTLX_PENDING; |
| 4069 | list_add_tail(&ctlx->list, &hw->ctlxq.pending); |
| 4070 | |
| 4071 | spin_unlock_irqrestore(&hw->ctlxq.lock, flags); |
| 4072 | hfa384x_usbctlxq_run(hw); |
| 4073 | ret = 0; |
| 4074 | } |
| 4075 | |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 4076 | return ret; |
| 4077 | } |
| 4078 | |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 4079 | /*---------------------------------------------------------------- |
| 4080 | * hfa384x_usbout_tx |
| 4081 | * |
| 4082 | * At this point we have finished a send of a frame. Mark the URB |
| 4083 | * as available and call ev_alloc to notify higher layers we're |
| 4084 | * ready for more. |
| 4085 | * |
| 4086 | * Arguments: |
| 4087 | * wlandev wlan device |
| 4088 | * usbout ptr to the usb transfer buffer |
| 4089 | * |
| 4090 | * Returns: |
| 4091 | * nothing |
| 4092 | * |
| 4093 | * Side effects: |
| 4094 | * |
| 4095 | * Call context: |
| 4096 | * interrupt |
| 4097 | ----------------------------------------------------------------*/ |
Mithlesh Thukral | 297f06c | 2009-06-10 19:36:11 +0530 | [diff] [blame] | 4098 | static void hfa384x_usbout_tx(wlandevice_t *wlandev, hfa384x_usbout_t *usbout) |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 4099 | { |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 4100 | prism2sta_ev_alloc(wlandev); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 4101 | } |
| 4102 | |
| 4103 | /*---------------------------------------------------------------- |
| 4104 | * hfa384x_isgood_pdrcore |
| 4105 | * |
| 4106 | * Quick check of PDR codes. |
| 4107 | * |
| 4108 | * Arguments: |
| 4109 | * pdrcode PDR code number (host order) |
| 4110 | * |
| 4111 | * Returns: |
| 4112 | * zero not good. |
| 4113 | * one is good. |
| 4114 | * |
| 4115 | * Side effects: |
| 4116 | * |
| 4117 | * Call context: |
| 4118 | ----------------------------------------------------------------*/ |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 4119 | static int hfa384x_isgood_pdrcode(u16 pdrcode) |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 4120 | { |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 4121 | switch (pdrcode) { |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 4122 | case HFA384x_PDR_END_OF_PDA: |
| 4123 | case HFA384x_PDR_PCB_PARTNUM: |
| 4124 | case HFA384x_PDR_PDAVER: |
| 4125 | case HFA384x_PDR_NIC_SERIAL: |
| 4126 | case HFA384x_PDR_MKK_MEASUREMENTS: |
| 4127 | case HFA384x_PDR_NIC_RAMSIZE: |
| 4128 | case HFA384x_PDR_MFISUPRANGE: |
| 4129 | case HFA384x_PDR_CFISUPRANGE: |
| 4130 | case HFA384x_PDR_NICID: |
| 4131 | case HFA384x_PDR_MAC_ADDRESS: |
| 4132 | case HFA384x_PDR_REGDOMAIN: |
| 4133 | case HFA384x_PDR_ALLOWED_CHANNEL: |
| 4134 | case HFA384x_PDR_DEFAULT_CHANNEL: |
| 4135 | case HFA384x_PDR_TEMPTYPE: |
| 4136 | case HFA384x_PDR_IFR_SETTING: |
| 4137 | case HFA384x_PDR_RFR_SETTING: |
| 4138 | case HFA384x_PDR_HFA3861_BASELINE: |
| 4139 | case HFA384x_PDR_HFA3861_SHADOW: |
| 4140 | case HFA384x_PDR_HFA3861_IFRF: |
| 4141 | case HFA384x_PDR_HFA3861_CHCALSP: |
| 4142 | case HFA384x_PDR_HFA3861_CHCALI: |
| 4143 | case HFA384x_PDR_3842_NIC_CONFIG: |
| 4144 | case HFA384x_PDR_USB_ID: |
| 4145 | case HFA384x_PDR_PCI_ID: |
| 4146 | case HFA384x_PDR_PCI_IFCONF: |
| 4147 | case HFA384x_PDR_PCI_PMCONF: |
| 4148 | case HFA384x_PDR_RFENRGY: |
| 4149 | case HFA384x_PDR_HFA3861_MANF_TESTSP: |
| 4150 | case HFA384x_PDR_HFA3861_MANF_TESTI: |
| 4151 | /* code is OK */ |
| 4152 | return 1; |
| 4153 | break; |
| 4154 | default: |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 4155 | if (pdrcode < 0x1000) { |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 4156 | /* code is OK, but we don't know exactly what it is */ |
Mithlesh Thukral | 75f49e0 | 2009-05-25 19:06:16 +0530 | [diff] [blame] | 4157 | pr_debug("Encountered unknown PDR#=0x%04x, " |
| 4158 | "assuming it's ok.\n", pdrcode); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 4159 | return 1; |
| 4160 | } else { |
| 4161 | /* bad code */ |
Mithlesh Thukral | 75f49e0 | 2009-05-25 19:06:16 +0530 | [diff] [blame] | 4162 | pr_debug("Encountered unknown PDR#=0x%04x, " |
| 4163 | "(>=0x1000), assuming it's bad.\n", pdrcode); |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 4164 | return 0; |
| 4165 | } |
| 4166 | break; |
| 4167 | } |
Moritz Muehlenhoff | 21dc0f8 | 2009-02-08 02:21:00 +0100 | [diff] [blame] | 4168 | return 0; /* avoid compiler warnings */ |
Greg Kroah-Hartman | 00b3ed1 | 2008-10-02 11:29:28 -0700 | [diff] [blame] | 4169 | } |