Thomas Gleixner | 2874c5f | 2019-05-27 08:55:01 +0200 | [diff] [blame] | 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
Luis Carlos Cobo | 691cdb4 | 2008-08-14 10:41:01 -0700 | [diff] [blame] | 2 | /* |
| 3 | * Copyright (C) 2008, cozybit Inc. |
| 4 | * Copyright (C) 2003-2006, Marvell International Ltd. |
Luis Carlos Cobo | 691cdb4 | 2008-08-14 10:41:01 -0700 | [diff] [blame] | 5 | */ |
John W. Linville | edfcba1 | 2010-04-28 16:12:57 -0400 | [diff] [blame] | 6 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
| 7 | |
Alexey Dobriyan | a6b7a40 | 2011-06-06 10:43:46 +0000 | [diff] [blame] | 8 | #include <linux/hardirq.h> |
Tejun Heo | 5a0e3ad | 2010-03-24 17:04:11 +0900 | [diff] [blame] | 9 | #include <linux/slab.h> |
Paul Gortmaker | ee40fa0 | 2011-05-27 16:14:23 -0400 | [diff] [blame] | 10 | #include <linux/export.h> |
Tejun Heo | 5a0e3ad | 2010-03-24 17:04:11 +0900 | [diff] [blame] | 11 | |
Luis Carlos Cobo | 691cdb4 | 2008-08-14 10:41:01 -0700 | [diff] [blame] | 12 | #include "libertas_tf.h" |
| 13 | |
| 14 | static const struct channel_range channel_ranges[] = { |
| 15 | { LBTF_REGDOMAIN_US, 1, 12 }, |
| 16 | { LBTF_REGDOMAIN_CA, 1, 12 }, |
| 17 | { LBTF_REGDOMAIN_EU, 1, 14 }, |
| 18 | { LBTF_REGDOMAIN_JP, 1, 14 }, |
| 19 | { LBTF_REGDOMAIN_SP, 1, 14 }, |
| 20 | { LBTF_REGDOMAIN_FR, 1, 14 }, |
| 21 | }; |
| 22 | |
| 23 | static u16 lbtf_region_code_to_index[MRVDRV_MAX_REGION_CODE] = |
| 24 | { |
| 25 | LBTF_REGDOMAIN_US, LBTF_REGDOMAIN_CA, LBTF_REGDOMAIN_EU, |
| 26 | LBTF_REGDOMAIN_SP, LBTF_REGDOMAIN_FR, LBTF_REGDOMAIN_JP, |
| 27 | }; |
| 28 | |
| 29 | static struct cmd_ctrl_node *lbtf_get_cmd_ctrl_node(struct lbtf_private *priv); |
| 30 | |
| 31 | |
| 32 | /** |
| 33 | * lbtf_cmd_copyback - Simple callback that copies response back into command |
| 34 | * |
| 35 | * @priv A pointer to struct lbtf_private structure |
| 36 | * @extra A pointer to the original command structure for which |
| 37 | * 'resp' is a response |
| 38 | * @resp A pointer to the command response |
| 39 | * |
| 40 | * Returns: 0 on success, error on failure |
| 41 | */ |
| 42 | int lbtf_cmd_copyback(struct lbtf_private *priv, unsigned long extra, |
| 43 | struct cmd_header *resp) |
| 44 | { |
| 45 | struct cmd_header *buf = (void *)extra; |
| 46 | uint16_t copy_len; |
| 47 | |
| 48 | copy_len = min(le16_to_cpu(buf->size), le16_to_cpu(resp->size)); |
| 49 | memcpy(buf, resp, copy_len); |
| 50 | return 0; |
| 51 | } |
| 52 | EXPORT_SYMBOL_GPL(lbtf_cmd_copyback); |
| 53 | |
| 54 | #define CHAN_TO_IDX(chan) ((chan) - 1) |
| 55 | |
| 56 | static void lbtf_geo_init(struct lbtf_private *priv) |
| 57 | { |
| 58 | const struct channel_range *range = channel_ranges; |
| 59 | u8 ch; |
| 60 | int i; |
| 61 | |
| 62 | for (i = 0; i < ARRAY_SIZE(channel_ranges); i++) |
| 63 | if (channel_ranges[i].regdomain == priv->regioncode) { |
| 64 | range = &channel_ranges[i]; |
| 65 | break; |
| 66 | } |
| 67 | |
| 68 | for (ch = priv->range.start; ch < priv->range.end; ch++) |
| 69 | priv->channels[CHAN_TO_IDX(ch)].flags = 0; |
| 70 | } |
| 71 | |
| 72 | /** |
| 73 | * lbtf_update_hw_spec: Updates the hardware details. |
| 74 | * |
| 75 | * @priv A pointer to struct lbtf_private structure |
| 76 | * |
| 77 | * Returns: 0 on success, error on failure |
| 78 | */ |
| 79 | int lbtf_update_hw_spec(struct lbtf_private *priv) |
| 80 | { |
| 81 | struct cmd_ds_get_hw_spec cmd; |
| 82 | int ret = -1; |
| 83 | u32 i; |
Luis Carlos Cobo | 691cdb4 | 2008-08-14 10:41:01 -0700 | [diff] [blame] | 84 | |
Steve deRosier | e9bd5bc | 2010-04-25 14:40:46 -0700 | [diff] [blame] | 85 | lbtf_deb_enter(LBTF_DEB_CMD); |
| 86 | |
Luis Carlos Cobo | 691cdb4 | 2008-08-14 10:41:01 -0700 | [diff] [blame] | 87 | memset(&cmd, 0, sizeof(cmd)); |
| 88 | cmd.hdr.size = cpu_to_le16(sizeof(cmd)); |
| 89 | memcpy(cmd.permanentaddr, priv->current_addr, ETH_ALEN); |
| 90 | ret = lbtf_cmd_with_response(priv, CMD_GET_HW_SPEC, &cmd); |
| 91 | if (ret) |
| 92 | goto out; |
| 93 | |
| 94 | priv->fwcapinfo = le32_to_cpu(cmd.fwcapinfo); |
| 95 | |
| 96 | /* The firmware release is in an interesting format: the patch |
| 97 | * level is in the most significant nibble ... so fix that: */ |
| 98 | priv->fwrelease = le32_to_cpu(cmd.fwrelease); |
| 99 | priv->fwrelease = (priv->fwrelease << 8) | |
| 100 | (priv->fwrelease >> 24 & 0xff); |
| 101 | |
Johannes Berg | e174961 | 2008-10-27 15:59:26 -0700 | [diff] [blame] | 102 | printk(KERN_INFO "libertastf: %pM, fw %u.%u.%up%u, cap 0x%08x\n", |
| 103 | cmd.permanentaddr, |
Luis Carlos Cobo | 691cdb4 | 2008-08-14 10:41:01 -0700 | [diff] [blame] | 104 | priv->fwrelease >> 24 & 0xff, |
| 105 | priv->fwrelease >> 16 & 0xff, |
| 106 | priv->fwrelease >> 8 & 0xff, |
| 107 | priv->fwrelease & 0xff, |
| 108 | priv->fwcapinfo); |
Steve deRosier | e9bd5bc | 2010-04-25 14:40:46 -0700 | [diff] [blame] | 109 | lbtf_deb_cmd("GET_HW_SPEC: hardware interface 0x%x, hardware spec 0x%04x\n", |
| 110 | cmd.hwifversion, cmd.version); |
Luis Carlos Cobo | 691cdb4 | 2008-08-14 10:41:01 -0700 | [diff] [blame] | 111 | |
| 112 | /* Clamp region code to 8-bit since FW spec indicates that it should |
| 113 | * only ever be 8-bit, even though the field size is 16-bit. Some |
| 114 | * firmware returns non-zero high 8 bits here. |
| 115 | */ |
| 116 | priv->regioncode = le16_to_cpu(cmd.regioncode) & 0xFF; |
| 117 | |
| 118 | for (i = 0; i < MRVDRV_MAX_REGION_CODE; i++) { |
| 119 | /* use the region code to search for the index */ |
| 120 | if (priv->regioncode == lbtf_region_code_to_index[i]) |
| 121 | break; |
| 122 | } |
| 123 | |
| 124 | /* if it's unidentified region code, use the default (USA) */ |
Steve deRosier | e9bd5bc | 2010-04-25 14:40:46 -0700 | [diff] [blame] | 125 | if (i >= MRVDRV_MAX_REGION_CODE) { |
Luis Carlos Cobo | 691cdb4 | 2008-08-14 10:41:01 -0700 | [diff] [blame] | 126 | priv->regioncode = 0x10; |
Steve deRosier | e9bd5bc | 2010-04-25 14:40:46 -0700 | [diff] [blame] | 127 | pr_info("unidentified region code; using the default (USA)\n"); |
| 128 | } |
Luis Carlos Cobo | 691cdb4 | 2008-08-14 10:41:01 -0700 | [diff] [blame] | 129 | |
| 130 | if (priv->current_addr[0] == 0xff) |
| 131 | memmove(priv->current_addr, cmd.permanentaddr, ETH_ALEN); |
| 132 | |
| 133 | SET_IEEE80211_PERM_ADDR(priv->hw, priv->current_addr); |
| 134 | |
| 135 | lbtf_geo_init(priv); |
| 136 | out: |
Steve deRosier | e9bd5bc | 2010-04-25 14:40:46 -0700 | [diff] [blame] | 137 | lbtf_deb_leave(LBTF_DEB_CMD); |
Luis Carlos Cobo | 691cdb4 | 2008-08-14 10:41:01 -0700 | [diff] [blame] | 138 | return ret; |
| 139 | } |
| 140 | |
| 141 | /** |
| 142 | * lbtf_set_channel: Set the radio channel |
| 143 | * |
| 144 | * @priv A pointer to struct lbtf_private structure |
| 145 | * @channel The desired channel, or 0 to clear a locked channel |
| 146 | * |
| 147 | * Returns: 0 on success, error on failure |
| 148 | */ |
| 149 | int lbtf_set_channel(struct lbtf_private *priv, u8 channel) |
| 150 | { |
Steve deRosier | e9bd5bc | 2010-04-25 14:40:46 -0700 | [diff] [blame] | 151 | int ret = 0; |
Luis Carlos Cobo | 691cdb4 | 2008-08-14 10:41:01 -0700 | [diff] [blame] | 152 | struct cmd_ds_802_11_rf_channel cmd; |
| 153 | |
Steve deRosier | e9bd5bc | 2010-04-25 14:40:46 -0700 | [diff] [blame] | 154 | lbtf_deb_enter(LBTF_DEB_CMD); |
| 155 | |
Luis Carlos Cobo | 691cdb4 | 2008-08-14 10:41:01 -0700 | [diff] [blame] | 156 | cmd.hdr.size = cpu_to_le16(sizeof(cmd)); |
| 157 | cmd.action = cpu_to_le16(CMD_OPT_802_11_RF_CHANNEL_SET); |
| 158 | cmd.channel = cpu_to_le16(channel); |
| 159 | |
Steve deRosier | e9bd5bc | 2010-04-25 14:40:46 -0700 | [diff] [blame] | 160 | ret = lbtf_cmd_with_response(priv, CMD_802_11_RF_CHANNEL, &cmd); |
| 161 | lbtf_deb_leave_args(LBTF_DEB_CMD, "ret %d", ret); |
| 162 | return ret; |
Luis Carlos Cobo | 691cdb4 | 2008-08-14 10:41:01 -0700 | [diff] [blame] | 163 | } |
| 164 | |
| 165 | int lbtf_beacon_set(struct lbtf_private *priv, struct sk_buff *beacon) |
| 166 | { |
| 167 | struct cmd_ds_802_11_beacon_set cmd; |
| 168 | int size; |
| 169 | |
Steve deRosier | e9bd5bc | 2010-04-25 14:40:46 -0700 | [diff] [blame] | 170 | lbtf_deb_enter(LBTF_DEB_CMD); |
| 171 | |
| 172 | if (beacon->len > MRVL_MAX_BCN_SIZE) { |
| 173 | lbtf_deb_leave_args(LBTF_DEB_CMD, "ret %d", -1); |
Luis Carlos Cobo | 691cdb4 | 2008-08-14 10:41:01 -0700 | [diff] [blame] | 174 | return -1; |
Steve deRosier | e9bd5bc | 2010-04-25 14:40:46 -0700 | [diff] [blame] | 175 | } |
Luis Carlos Cobo | 691cdb4 | 2008-08-14 10:41:01 -0700 | [diff] [blame] | 176 | size = sizeof(cmd) - sizeof(cmd.beacon) + beacon->len; |
| 177 | cmd.hdr.size = cpu_to_le16(size); |
| 178 | cmd.len = cpu_to_le16(beacon->len); |
| 179 | memcpy(cmd.beacon, (u8 *) beacon->data, beacon->len); |
| 180 | |
| 181 | lbtf_cmd_async(priv, CMD_802_11_BEACON_SET, &cmd.hdr, size); |
Steve deRosier | e9bd5bc | 2010-04-25 14:40:46 -0700 | [diff] [blame] | 182 | |
| 183 | lbtf_deb_leave_args(LBTF_DEB_CMD, "ret %d", 0); |
Luis Carlos Cobo | 691cdb4 | 2008-08-14 10:41:01 -0700 | [diff] [blame] | 184 | return 0; |
| 185 | } |
| 186 | |
| 187 | int lbtf_beacon_ctrl(struct lbtf_private *priv, bool beacon_enable, |
Steve deRosier | e9bd5bc | 2010-04-25 14:40:46 -0700 | [diff] [blame] | 188 | int beacon_int) |
| 189 | { |
Luis Carlos Cobo | 691cdb4 | 2008-08-14 10:41:01 -0700 | [diff] [blame] | 190 | struct cmd_ds_802_11_beacon_control cmd; |
Steve deRosier | e9bd5bc | 2010-04-25 14:40:46 -0700 | [diff] [blame] | 191 | lbtf_deb_enter(LBTF_DEB_CMD); |
Luis Carlos Cobo | 691cdb4 | 2008-08-14 10:41:01 -0700 | [diff] [blame] | 192 | |
| 193 | cmd.hdr.size = cpu_to_le16(sizeof(cmd)); |
| 194 | cmd.action = cpu_to_le16(CMD_ACT_SET); |
| 195 | cmd.beacon_enable = cpu_to_le16(beacon_enable); |
| 196 | cmd.beacon_period = cpu_to_le16(beacon_int); |
| 197 | |
| 198 | lbtf_cmd_async(priv, CMD_802_11_BEACON_CTRL, &cmd.hdr, sizeof(cmd)); |
Steve deRosier | e9bd5bc | 2010-04-25 14:40:46 -0700 | [diff] [blame] | 199 | |
| 200 | lbtf_deb_leave(LBTF_DEB_CMD); |
Luis Carlos Cobo | 691cdb4 | 2008-08-14 10:41:01 -0700 | [diff] [blame] | 201 | return 0; |
| 202 | } |
| 203 | |
| 204 | static void lbtf_queue_cmd(struct lbtf_private *priv, |
| 205 | struct cmd_ctrl_node *cmdnode) |
| 206 | { |
| 207 | unsigned long flags; |
Steve deRosier | e9bd5bc | 2010-04-25 14:40:46 -0700 | [diff] [blame] | 208 | lbtf_deb_enter(LBTF_DEB_HOST); |
Luis Carlos Cobo | 691cdb4 | 2008-08-14 10:41:01 -0700 | [diff] [blame] | 209 | |
Steve deRosier | e9bd5bc | 2010-04-25 14:40:46 -0700 | [diff] [blame] | 210 | if (!cmdnode) { |
| 211 | lbtf_deb_host("QUEUE_CMD: cmdnode is NULL\n"); |
| 212 | goto qcmd_done; |
| 213 | } |
Luis Carlos Cobo | 691cdb4 | 2008-08-14 10:41:01 -0700 | [diff] [blame] | 214 | |
Steve deRosier | e9bd5bc | 2010-04-25 14:40:46 -0700 | [diff] [blame] | 215 | if (!cmdnode->cmdbuf->size) { |
| 216 | lbtf_deb_host("DNLD_CMD: cmd size is zero\n"); |
| 217 | goto qcmd_done; |
| 218 | } |
Luis Carlos Cobo | 691cdb4 | 2008-08-14 10:41:01 -0700 | [diff] [blame] | 219 | |
| 220 | cmdnode->result = 0; |
| 221 | spin_lock_irqsave(&priv->driver_lock, flags); |
| 222 | list_add_tail(&cmdnode->list, &priv->cmdpendingq); |
| 223 | spin_unlock_irqrestore(&priv->driver_lock, flags); |
Steve deRosier | e9bd5bc | 2010-04-25 14:40:46 -0700 | [diff] [blame] | 224 | |
| 225 | lbtf_deb_host("QUEUE_CMD: inserted command 0x%04x into cmdpendingq\n", |
| 226 | le16_to_cpu(cmdnode->cmdbuf->command)); |
| 227 | |
| 228 | qcmd_done: |
| 229 | lbtf_deb_leave(LBTF_DEB_HOST); |
Luis Carlos Cobo | 691cdb4 | 2008-08-14 10:41:01 -0700 | [diff] [blame] | 230 | } |
| 231 | |
| 232 | static void lbtf_submit_command(struct lbtf_private *priv, |
| 233 | struct cmd_ctrl_node *cmdnode) |
| 234 | { |
| 235 | unsigned long flags; |
| 236 | struct cmd_header *cmd; |
| 237 | uint16_t cmdsize; |
| 238 | uint16_t command; |
| 239 | int timeo = 5 * HZ; |
| 240 | int ret; |
| 241 | |
Steve deRosier | e9bd5bc | 2010-04-25 14:40:46 -0700 | [diff] [blame] | 242 | lbtf_deb_enter(LBTF_DEB_HOST); |
| 243 | |
Luis Carlos Cobo | 691cdb4 | 2008-08-14 10:41:01 -0700 | [diff] [blame] | 244 | cmd = cmdnode->cmdbuf; |
| 245 | |
| 246 | spin_lock_irqsave(&priv->driver_lock, flags); |
| 247 | priv->cur_cmd = cmdnode; |
| 248 | cmdsize = le16_to_cpu(cmd->size); |
| 249 | command = le16_to_cpu(cmd->command); |
Steve deRosier | e9bd5bc | 2010-04-25 14:40:46 -0700 | [diff] [blame] | 250 | |
| 251 | lbtf_deb_cmd("DNLD_CMD: command 0x%04x, seq %d, size %d\n", |
| 252 | command, le16_to_cpu(cmd->seqnum), cmdsize); |
| 253 | lbtf_deb_hex(LBTF_DEB_CMD, "DNLD_CMD", (void *) cmdnode->cmdbuf, cmdsize); |
| 254 | |
Lubomir Rintel | be9d0d3 | 2019-02-20 11:58:38 +0100 | [diff] [blame] | 255 | ret = priv->ops->hw_host_to_card(priv, MVMS_CMD, (u8 *)cmd, cmdsize); |
Luis Carlos Cobo | 691cdb4 | 2008-08-14 10:41:01 -0700 | [diff] [blame] | 256 | spin_unlock_irqrestore(&priv->driver_lock, flags); |
| 257 | |
Steve deRosier | e9bd5bc | 2010-04-25 14:40:46 -0700 | [diff] [blame] | 258 | if (ret) { |
| 259 | pr_info("DNLD_CMD: hw_host_to_card failed: %d\n", ret); |
Luis Carlos Cobo | 691cdb4 | 2008-08-14 10:41:01 -0700 | [diff] [blame] | 260 | /* Let the timer kick in and retry, and potentially reset |
| 261 | the whole thing if the condition persists */ |
| 262 | timeo = HZ; |
Steve deRosier | e9bd5bc | 2010-04-25 14:40:46 -0700 | [diff] [blame] | 263 | } |
Luis Carlos Cobo | 691cdb4 | 2008-08-14 10:41:01 -0700 | [diff] [blame] | 264 | |
| 265 | /* Setup the timer after transmit command */ |
| 266 | mod_timer(&priv->command_timer, jiffies + timeo); |
Steve deRosier | e9bd5bc | 2010-04-25 14:40:46 -0700 | [diff] [blame] | 267 | |
| 268 | lbtf_deb_leave(LBTF_DEB_HOST); |
Luis Carlos Cobo | 691cdb4 | 2008-08-14 10:41:01 -0700 | [diff] [blame] | 269 | } |
| 270 | |
| 271 | /** |
| 272 | * This function inserts command node to cmdfreeq |
| 273 | * after cleans it. Requires priv->driver_lock held. |
| 274 | */ |
| 275 | static void __lbtf_cleanup_and_insert_cmd(struct lbtf_private *priv, |
| 276 | struct cmd_ctrl_node *cmdnode) |
| 277 | { |
Steve deRosier | e9bd5bc | 2010-04-25 14:40:46 -0700 | [diff] [blame] | 278 | lbtf_deb_enter(LBTF_DEB_HOST); |
| 279 | |
Luis Carlos Cobo | 691cdb4 | 2008-08-14 10:41:01 -0700 | [diff] [blame] | 280 | if (!cmdnode) |
Steve deRosier | e9bd5bc | 2010-04-25 14:40:46 -0700 | [diff] [blame] | 281 | goto cl_ins_out; |
Luis Carlos Cobo | 691cdb4 | 2008-08-14 10:41:01 -0700 | [diff] [blame] | 282 | |
| 283 | cmdnode->callback = NULL; |
| 284 | cmdnode->callback_arg = 0; |
| 285 | |
| 286 | memset(cmdnode->cmdbuf, 0, LBS_CMD_BUFFER_SIZE); |
| 287 | |
| 288 | list_add_tail(&cmdnode->list, &priv->cmdfreeq); |
Steve deRosier | e9bd5bc | 2010-04-25 14:40:46 -0700 | [diff] [blame] | 289 | |
| 290 | cl_ins_out: |
| 291 | lbtf_deb_leave(LBTF_DEB_HOST); |
Luis Carlos Cobo | 691cdb4 | 2008-08-14 10:41:01 -0700 | [diff] [blame] | 292 | } |
| 293 | |
| 294 | static void lbtf_cleanup_and_insert_cmd(struct lbtf_private *priv, |
| 295 | struct cmd_ctrl_node *ptempcmd) |
| 296 | { |
| 297 | unsigned long flags; |
| 298 | |
| 299 | spin_lock_irqsave(&priv->driver_lock, flags); |
| 300 | __lbtf_cleanup_and_insert_cmd(priv, ptempcmd); |
| 301 | spin_unlock_irqrestore(&priv->driver_lock, flags); |
| 302 | } |
| 303 | |
| 304 | void lbtf_complete_command(struct lbtf_private *priv, struct cmd_ctrl_node *cmd, |
| 305 | int result) |
| 306 | { |
| 307 | cmd->result = result; |
| 308 | cmd->cmdwaitqwoken = 1; |
| 309 | wake_up_interruptible(&cmd->cmdwait_q); |
| 310 | |
| 311 | if (!cmd->callback) |
| 312 | __lbtf_cleanup_and_insert_cmd(priv, cmd); |
| 313 | priv->cur_cmd = NULL; |
| 314 | } |
| 315 | |
| 316 | int lbtf_cmd_set_mac_multicast_addr(struct lbtf_private *priv) |
| 317 | { |
| 318 | struct cmd_ds_mac_multicast_addr cmd; |
| 319 | |
Steve deRosier | e9bd5bc | 2010-04-25 14:40:46 -0700 | [diff] [blame] | 320 | lbtf_deb_enter(LBTF_DEB_CMD); |
| 321 | |
Luis Carlos Cobo | 691cdb4 | 2008-08-14 10:41:01 -0700 | [diff] [blame] | 322 | cmd.hdr.size = cpu_to_le16(sizeof(cmd)); |
| 323 | cmd.action = cpu_to_le16(CMD_ACT_SET); |
| 324 | |
| 325 | cmd.nr_of_adrs = cpu_to_le16((u16) priv->nr_of_multicastmacaddr); |
Steve deRosier | e9bd5bc | 2010-04-25 14:40:46 -0700 | [diff] [blame] | 326 | |
| 327 | lbtf_deb_cmd("MULTICAST_ADR: setting %d addresses\n", cmd.nr_of_adrs); |
| 328 | |
Luis Carlos Cobo | 691cdb4 | 2008-08-14 10:41:01 -0700 | [diff] [blame] | 329 | memcpy(cmd.maclist, priv->multicastlist, |
| 330 | priv->nr_of_multicastmacaddr * ETH_ALEN); |
| 331 | |
| 332 | lbtf_cmd_async(priv, CMD_MAC_MULTICAST_ADR, &cmd.hdr, sizeof(cmd)); |
Steve deRosier | e9bd5bc | 2010-04-25 14:40:46 -0700 | [diff] [blame] | 333 | |
| 334 | lbtf_deb_leave(LBTF_DEB_CMD); |
Luis Carlos Cobo | 691cdb4 | 2008-08-14 10:41:01 -0700 | [diff] [blame] | 335 | return 0; |
| 336 | } |
| 337 | |
| 338 | void lbtf_set_mode(struct lbtf_private *priv, enum lbtf_mode mode) |
| 339 | { |
| 340 | struct cmd_ds_set_mode cmd; |
Steve deRosier | e9bd5bc | 2010-04-25 14:40:46 -0700 | [diff] [blame] | 341 | lbtf_deb_enter(LBTF_DEB_WEXT); |
Luis Carlos Cobo | 691cdb4 | 2008-08-14 10:41:01 -0700 | [diff] [blame] | 342 | |
| 343 | cmd.hdr.size = cpu_to_le16(sizeof(cmd)); |
| 344 | cmd.mode = cpu_to_le16(mode); |
Steve deRosier | e9bd5bc | 2010-04-25 14:40:46 -0700 | [diff] [blame] | 345 | lbtf_deb_wext("Switching to mode: 0x%x\n", mode); |
Luis Carlos Cobo | 691cdb4 | 2008-08-14 10:41:01 -0700 | [diff] [blame] | 346 | lbtf_cmd_async(priv, CMD_802_11_SET_MODE, &cmd.hdr, sizeof(cmd)); |
Steve deRosier | e9bd5bc | 2010-04-25 14:40:46 -0700 | [diff] [blame] | 347 | |
| 348 | lbtf_deb_leave(LBTF_DEB_WEXT); |
Luis Carlos Cobo | 691cdb4 | 2008-08-14 10:41:01 -0700 | [diff] [blame] | 349 | } |
| 350 | |
Johannes Berg | 5f936f1 | 2009-01-21 12:47:05 +0100 | [diff] [blame] | 351 | void lbtf_set_bssid(struct lbtf_private *priv, bool activate, const u8 *bssid) |
Luis Carlos Cobo | 691cdb4 | 2008-08-14 10:41:01 -0700 | [diff] [blame] | 352 | { |
| 353 | struct cmd_ds_set_bssid cmd; |
Steve deRosier | e9bd5bc | 2010-04-25 14:40:46 -0700 | [diff] [blame] | 354 | lbtf_deb_enter(LBTF_DEB_CMD); |
Luis Carlos Cobo | 691cdb4 | 2008-08-14 10:41:01 -0700 | [diff] [blame] | 355 | |
| 356 | cmd.hdr.size = cpu_to_le16(sizeof(cmd)); |
| 357 | cmd.activate = activate ? 1 : 0; |
| 358 | if (activate) |
| 359 | memcpy(cmd.bssid, bssid, ETH_ALEN); |
| 360 | |
| 361 | lbtf_cmd_async(priv, CMD_802_11_SET_BSSID, &cmd.hdr, sizeof(cmd)); |
Steve deRosier | e9bd5bc | 2010-04-25 14:40:46 -0700 | [diff] [blame] | 362 | lbtf_deb_leave(LBTF_DEB_CMD); |
Luis Carlos Cobo | 691cdb4 | 2008-08-14 10:41:01 -0700 | [diff] [blame] | 363 | } |
| 364 | |
| 365 | int lbtf_set_mac_address(struct lbtf_private *priv, uint8_t *mac_addr) |
| 366 | { |
| 367 | struct cmd_ds_802_11_mac_address cmd; |
Steve deRosier | e9bd5bc | 2010-04-25 14:40:46 -0700 | [diff] [blame] | 368 | lbtf_deb_enter(LBTF_DEB_CMD); |
Luis Carlos Cobo | 691cdb4 | 2008-08-14 10:41:01 -0700 | [diff] [blame] | 369 | |
| 370 | cmd.hdr.size = cpu_to_le16(sizeof(cmd)); |
| 371 | cmd.action = cpu_to_le16(CMD_ACT_SET); |
| 372 | |
| 373 | memcpy(cmd.macadd, mac_addr, ETH_ALEN); |
| 374 | |
| 375 | lbtf_cmd_async(priv, CMD_802_11_MAC_ADDRESS, &cmd.hdr, sizeof(cmd)); |
Steve deRosier | e9bd5bc | 2010-04-25 14:40:46 -0700 | [diff] [blame] | 376 | lbtf_deb_leave(LBTF_DEB_CMD); |
Luis Carlos Cobo | 691cdb4 | 2008-08-14 10:41:01 -0700 | [diff] [blame] | 377 | return 0; |
| 378 | } |
| 379 | |
| 380 | int lbtf_set_radio_control(struct lbtf_private *priv) |
| 381 | { |
| 382 | int ret = 0; |
| 383 | struct cmd_ds_802_11_radio_control cmd; |
| 384 | |
Steve deRosier | e9bd5bc | 2010-04-25 14:40:46 -0700 | [diff] [blame] | 385 | lbtf_deb_enter(LBTF_DEB_CMD); |
| 386 | |
Luis Carlos Cobo | 691cdb4 | 2008-08-14 10:41:01 -0700 | [diff] [blame] | 387 | cmd.hdr.size = cpu_to_le16(sizeof(cmd)); |
| 388 | cmd.action = cpu_to_le16(CMD_ACT_SET); |
| 389 | |
| 390 | switch (priv->preamble) { |
| 391 | case CMD_TYPE_SHORT_PREAMBLE: |
| 392 | cmd.control = cpu_to_le16(SET_SHORT_PREAMBLE); |
| 393 | break; |
| 394 | |
| 395 | case CMD_TYPE_LONG_PREAMBLE: |
| 396 | cmd.control = cpu_to_le16(SET_LONG_PREAMBLE); |
| 397 | break; |
| 398 | |
| 399 | case CMD_TYPE_AUTO_PREAMBLE: |
| 400 | default: |
| 401 | cmd.control = cpu_to_le16(SET_AUTO_PREAMBLE); |
| 402 | break; |
| 403 | } |
| 404 | |
| 405 | if (priv->radioon) |
| 406 | cmd.control |= cpu_to_le16(TURN_ON_RF); |
| 407 | else |
| 408 | cmd.control &= cpu_to_le16(~TURN_ON_RF); |
| 409 | |
Steve deRosier | e9bd5bc | 2010-04-25 14:40:46 -0700 | [diff] [blame] | 410 | lbtf_deb_cmd("RADIO_SET: radio %d, preamble %d\n", priv->radioon, |
| 411 | priv->preamble); |
| 412 | |
Luis Carlos Cobo | 691cdb4 | 2008-08-14 10:41:01 -0700 | [diff] [blame] | 413 | ret = lbtf_cmd_with_response(priv, CMD_802_11_RADIO_CONTROL, &cmd); |
Steve deRosier | e9bd5bc | 2010-04-25 14:40:46 -0700 | [diff] [blame] | 414 | |
| 415 | lbtf_deb_leave_args(LBTF_DEB_CMD, "ret %d", ret); |
Luis Carlos Cobo | 691cdb4 | 2008-08-14 10:41:01 -0700 | [diff] [blame] | 416 | return ret; |
| 417 | } |
| 418 | |
| 419 | void lbtf_set_mac_control(struct lbtf_private *priv) |
| 420 | { |
| 421 | struct cmd_ds_mac_control cmd; |
Steve deRosier | e9bd5bc | 2010-04-25 14:40:46 -0700 | [diff] [blame] | 422 | lbtf_deb_enter(LBTF_DEB_CMD); |
| 423 | |
Luis Carlos Cobo | 691cdb4 | 2008-08-14 10:41:01 -0700 | [diff] [blame] | 424 | cmd.hdr.size = cpu_to_le16(sizeof(cmd)); |
| 425 | cmd.action = cpu_to_le16(priv->mac_control); |
| 426 | cmd.reserved = 0; |
| 427 | |
| 428 | lbtf_cmd_async(priv, CMD_MAC_CONTROL, |
| 429 | &cmd.hdr, sizeof(cmd)); |
Steve deRosier | e9bd5bc | 2010-04-25 14:40:46 -0700 | [diff] [blame] | 430 | |
| 431 | lbtf_deb_leave(LBTF_DEB_CMD); |
Luis Carlos Cobo | 691cdb4 | 2008-08-14 10:41:01 -0700 | [diff] [blame] | 432 | } |
| 433 | |
| 434 | /** |
| 435 | * lbtf_allocate_cmd_buffer - Allocates cmd buffer, links it to free cmd queue |
| 436 | * |
| 437 | * @priv A pointer to struct lbtf_private structure |
| 438 | * |
| 439 | * Returns: 0 on success. |
| 440 | */ |
| 441 | int lbtf_allocate_cmd_buffer(struct lbtf_private *priv) |
| 442 | { |
Steve deRosier | e9bd5bc | 2010-04-25 14:40:46 -0700 | [diff] [blame] | 443 | int ret = 0; |
Luis Carlos Cobo | 691cdb4 | 2008-08-14 10:41:01 -0700 | [diff] [blame] | 444 | u32 bufsize; |
| 445 | u32 i; |
| 446 | struct cmd_ctrl_node *cmdarray; |
| 447 | |
Steve deRosier | e9bd5bc | 2010-04-25 14:40:46 -0700 | [diff] [blame] | 448 | lbtf_deb_enter(LBTF_DEB_HOST); |
| 449 | |
Luis Carlos Cobo | 691cdb4 | 2008-08-14 10:41:01 -0700 | [diff] [blame] | 450 | /* Allocate and initialize the command array */ |
| 451 | bufsize = sizeof(struct cmd_ctrl_node) * LBS_NUM_CMD_BUFFERS; |
| 452 | cmdarray = kzalloc(bufsize, GFP_KERNEL); |
Steve deRosier | e9bd5bc | 2010-04-25 14:40:46 -0700 | [diff] [blame] | 453 | if (!cmdarray) { |
| 454 | lbtf_deb_host("ALLOC_CMD_BUF: tempcmd_array is NULL\n"); |
| 455 | ret = -1; |
| 456 | goto done; |
| 457 | } |
Luis Carlos Cobo | 691cdb4 | 2008-08-14 10:41:01 -0700 | [diff] [blame] | 458 | priv->cmd_array = cmdarray; |
| 459 | |
| 460 | /* Allocate and initialize each command buffer in the command array */ |
| 461 | for (i = 0; i < LBS_NUM_CMD_BUFFERS; i++) { |
| 462 | cmdarray[i].cmdbuf = kzalloc(LBS_CMD_BUFFER_SIZE, GFP_KERNEL); |
Steve deRosier | e9bd5bc | 2010-04-25 14:40:46 -0700 | [diff] [blame] | 463 | if (!cmdarray[i].cmdbuf) { |
| 464 | lbtf_deb_host("ALLOC_CMD_BUF: ptempvirtualaddr is NULL\n"); |
| 465 | ret = -1; |
| 466 | goto done; |
| 467 | } |
Luis Carlos Cobo | 691cdb4 | 2008-08-14 10:41:01 -0700 | [diff] [blame] | 468 | } |
| 469 | |
| 470 | for (i = 0; i < LBS_NUM_CMD_BUFFERS; i++) { |
| 471 | init_waitqueue_head(&cmdarray[i].cmdwait_q); |
| 472 | lbtf_cleanup_and_insert_cmd(priv, &cmdarray[i]); |
| 473 | } |
Steve deRosier | e9bd5bc | 2010-04-25 14:40:46 -0700 | [diff] [blame] | 474 | |
| 475 | ret = 0; |
| 476 | |
| 477 | done: |
| 478 | lbtf_deb_leave_args(LBTF_DEB_HOST, "ret %d", ret); |
| 479 | return ret; |
Luis Carlos Cobo | 691cdb4 | 2008-08-14 10:41:01 -0700 | [diff] [blame] | 480 | } |
| 481 | |
| 482 | /** |
| 483 | * lbtf_free_cmd_buffer - Frees the cmd buffer. |
| 484 | * |
| 485 | * @priv A pointer to struct lbtf_private structure |
| 486 | * |
| 487 | * Returns: 0 |
| 488 | */ |
| 489 | int lbtf_free_cmd_buffer(struct lbtf_private *priv) |
| 490 | { |
| 491 | struct cmd_ctrl_node *cmdarray; |
| 492 | unsigned int i; |
| 493 | |
Steve deRosier | e9bd5bc | 2010-04-25 14:40:46 -0700 | [diff] [blame] | 494 | lbtf_deb_enter(LBTF_DEB_HOST); |
| 495 | |
Luis Carlos Cobo | 691cdb4 | 2008-08-14 10:41:01 -0700 | [diff] [blame] | 496 | /* need to check if cmd array is allocated or not */ |
Steve deRosier | e9bd5bc | 2010-04-25 14:40:46 -0700 | [diff] [blame] | 497 | if (priv->cmd_array == NULL) { |
| 498 | lbtf_deb_host("FREE_CMD_BUF: cmd_array is NULL\n"); |
| 499 | goto done; |
| 500 | } |
Luis Carlos Cobo | 691cdb4 | 2008-08-14 10:41:01 -0700 | [diff] [blame] | 501 | |
| 502 | cmdarray = priv->cmd_array; |
| 503 | |
| 504 | /* Release shared memory buffers */ |
| 505 | for (i = 0; i < LBS_NUM_CMD_BUFFERS; i++) { |
| 506 | kfree(cmdarray[i].cmdbuf); |
| 507 | cmdarray[i].cmdbuf = NULL; |
| 508 | } |
| 509 | |
| 510 | /* Release cmd_ctrl_node */ |
| 511 | kfree(priv->cmd_array); |
| 512 | priv->cmd_array = NULL; |
| 513 | |
Steve deRosier | e9bd5bc | 2010-04-25 14:40:46 -0700 | [diff] [blame] | 514 | done: |
| 515 | lbtf_deb_leave(LBTF_DEB_HOST); |
Luis Carlos Cobo | 691cdb4 | 2008-08-14 10:41:01 -0700 | [diff] [blame] | 516 | return 0; |
| 517 | } |
| 518 | |
| 519 | /** |
| 520 | * lbtf_get_cmd_ctrl_node - Gets free cmd node from free cmd queue. |
| 521 | * |
| 522 | * @priv A pointer to struct lbtf_private structure |
| 523 | * |
| 524 | * Returns: pointer to a struct cmd_ctrl_node or NULL if none available. |
| 525 | */ |
| 526 | static struct cmd_ctrl_node *lbtf_get_cmd_ctrl_node(struct lbtf_private *priv) |
| 527 | { |
| 528 | struct cmd_ctrl_node *tempnode; |
| 529 | unsigned long flags; |
| 530 | |
Steve deRosier | e9bd5bc | 2010-04-25 14:40:46 -0700 | [diff] [blame] | 531 | lbtf_deb_enter(LBTF_DEB_HOST); |
| 532 | |
Luis Carlos Cobo | 691cdb4 | 2008-08-14 10:41:01 -0700 | [diff] [blame] | 533 | if (!priv) |
| 534 | return NULL; |
| 535 | |
| 536 | spin_lock_irqsave(&priv->driver_lock, flags); |
| 537 | |
| 538 | if (!list_empty(&priv->cmdfreeq)) { |
| 539 | tempnode = list_first_entry(&priv->cmdfreeq, |
| 540 | struct cmd_ctrl_node, list); |
| 541 | list_del(&tempnode->list); |
Steve deRosier | e9bd5bc | 2010-04-25 14:40:46 -0700 | [diff] [blame] | 542 | } else { |
| 543 | lbtf_deb_host("GET_CMD_NODE: cmd_ctrl_node is not available\n"); |
Luis Carlos Cobo | 691cdb4 | 2008-08-14 10:41:01 -0700 | [diff] [blame] | 544 | tempnode = NULL; |
Steve deRosier | e9bd5bc | 2010-04-25 14:40:46 -0700 | [diff] [blame] | 545 | } |
Luis Carlos Cobo | 691cdb4 | 2008-08-14 10:41:01 -0700 | [diff] [blame] | 546 | |
| 547 | spin_unlock_irqrestore(&priv->driver_lock, flags); |
| 548 | |
Steve deRosier | e9bd5bc | 2010-04-25 14:40:46 -0700 | [diff] [blame] | 549 | lbtf_deb_leave(LBTF_DEB_HOST); |
Luis Carlos Cobo | 691cdb4 | 2008-08-14 10:41:01 -0700 | [diff] [blame] | 550 | return tempnode; |
| 551 | } |
| 552 | |
| 553 | /** |
| 554 | * lbtf_execute_next_command: execute next command in cmd pending queue. |
| 555 | * |
| 556 | * @priv A pointer to struct lbtf_private structure |
| 557 | * |
| 558 | * Returns: 0 on success. |
| 559 | */ |
| 560 | int lbtf_execute_next_command(struct lbtf_private *priv) |
| 561 | { |
| 562 | struct cmd_ctrl_node *cmdnode = NULL; |
| 563 | struct cmd_header *cmd; |
| 564 | unsigned long flags; |
Steve deRosier | e9bd5bc | 2010-04-25 14:40:46 -0700 | [diff] [blame] | 565 | int ret = 0; |
Luis Carlos Cobo | 691cdb4 | 2008-08-14 10:41:01 -0700 | [diff] [blame] | 566 | |
Steve deRosier | e9bd5bc | 2010-04-25 14:40:46 -0700 | [diff] [blame] | 567 | /* Debug group is lbtf_deb_THREAD and not lbtf_deb_HOST, because the |
Luis Carlos Cobo | 691cdb4 | 2008-08-14 10:41:01 -0700 | [diff] [blame] | 568 | * only caller to us is lbtf_thread() and we get even when a |
| 569 | * data packet is received */ |
Steve deRosier | e9bd5bc | 2010-04-25 14:40:46 -0700 | [diff] [blame] | 570 | lbtf_deb_enter(LBTF_DEB_THREAD); |
Luis Carlos Cobo | 691cdb4 | 2008-08-14 10:41:01 -0700 | [diff] [blame] | 571 | |
| 572 | spin_lock_irqsave(&priv->driver_lock, flags); |
| 573 | |
| 574 | if (priv->cur_cmd) { |
Steve deRosier | e9bd5bc | 2010-04-25 14:40:46 -0700 | [diff] [blame] | 575 | pr_alert("EXEC_NEXT_CMD: already processing command!\n"); |
Luis Carlos Cobo | 691cdb4 | 2008-08-14 10:41:01 -0700 | [diff] [blame] | 576 | spin_unlock_irqrestore(&priv->driver_lock, flags); |
Steve deRosier | e9bd5bc | 2010-04-25 14:40:46 -0700 | [diff] [blame] | 577 | ret = -1; |
| 578 | goto done; |
Luis Carlos Cobo | 691cdb4 | 2008-08-14 10:41:01 -0700 | [diff] [blame] | 579 | } |
| 580 | |
| 581 | if (!list_empty(&priv->cmdpendingq)) { |
| 582 | cmdnode = list_first_entry(&priv->cmdpendingq, |
| 583 | struct cmd_ctrl_node, list); |
| 584 | } |
| 585 | |
| 586 | if (cmdnode) { |
| 587 | cmd = cmdnode->cmdbuf; |
| 588 | |
| 589 | list_del(&cmdnode->list); |
Steve deRosier | e9bd5bc | 2010-04-25 14:40:46 -0700 | [diff] [blame] | 590 | lbtf_deb_host("EXEC_NEXT_CMD: sending command 0x%04x\n", |
| 591 | le16_to_cpu(cmd->command)); |
Luis Carlos Cobo | 691cdb4 | 2008-08-14 10:41:01 -0700 | [diff] [blame] | 592 | spin_unlock_irqrestore(&priv->driver_lock, flags); |
| 593 | lbtf_submit_command(priv, cmdnode); |
| 594 | } else |
| 595 | spin_unlock_irqrestore(&priv->driver_lock, flags); |
Steve deRosier | e9bd5bc | 2010-04-25 14:40:46 -0700 | [diff] [blame] | 596 | |
| 597 | ret = 0; |
| 598 | done: |
| 599 | lbtf_deb_leave(LBTF_DEB_THREAD); |
| 600 | return ret; |
Luis Carlos Cobo | 691cdb4 | 2008-08-14 10:41:01 -0700 | [diff] [blame] | 601 | } |
| 602 | |
| 603 | static struct cmd_ctrl_node *__lbtf_cmd_async(struct lbtf_private *priv, |
| 604 | uint16_t command, struct cmd_header *in_cmd, int in_cmd_size, |
| 605 | int (*callback)(struct lbtf_private *, unsigned long, |
| 606 | struct cmd_header *), |
| 607 | unsigned long callback_arg) |
| 608 | { |
| 609 | struct cmd_ctrl_node *cmdnode; |
| 610 | |
Steve deRosier | e9bd5bc | 2010-04-25 14:40:46 -0700 | [diff] [blame] | 611 | lbtf_deb_enter(LBTF_DEB_HOST); |
| 612 | |
| 613 | if (priv->surpriseremoved) { |
| 614 | lbtf_deb_host("PREP_CMD: card removed\n"); |
| 615 | cmdnode = ERR_PTR(-ENOENT); |
| 616 | goto done; |
| 617 | } |
Luis Carlos Cobo | 691cdb4 | 2008-08-14 10:41:01 -0700 | [diff] [blame] | 618 | |
| 619 | cmdnode = lbtf_get_cmd_ctrl_node(priv); |
| 620 | if (cmdnode == NULL) { |
Steve deRosier | e9bd5bc | 2010-04-25 14:40:46 -0700 | [diff] [blame] | 621 | lbtf_deb_host("PREP_CMD: cmdnode is NULL\n"); |
| 622 | |
Luis Carlos Cobo | 691cdb4 | 2008-08-14 10:41:01 -0700 | [diff] [blame] | 623 | /* Wake up main thread to execute next command */ |
| 624 | queue_work(lbtf_wq, &priv->cmd_work); |
Steve deRosier | e9bd5bc | 2010-04-25 14:40:46 -0700 | [diff] [blame] | 625 | cmdnode = ERR_PTR(-ENOBUFS); |
| 626 | goto done; |
Luis Carlos Cobo | 691cdb4 | 2008-08-14 10:41:01 -0700 | [diff] [blame] | 627 | } |
| 628 | |
| 629 | cmdnode->callback = callback; |
| 630 | cmdnode->callback_arg = callback_arg; |
| 631 | |
| 632 | /* Copy the incoming command to the buffer */ |
| 633 | memcpy(cmdnode->cmdbuf, in_cmd, in_cmd_size); |
| 634 | |
| 635 | /* Set sequence number, clean result, move to buffer */ |
| 636 | priv->seqnum++; |
| 637 | cmdnode->cmdbuf->command = cpu_to_le16(command); |
| 638 | cmdnode->cmdbuf->size = cpu_to_le16(in_cmd_size); |
| 639 | cmdnode->cmdbuf->seqnum = cpu_to_le16(priv->seqnum); |
| 640 | cmdnode->cmdbuf->result = 0; |
Steve deRosier | e9bd5bc | 2010-04-25 14:40:46 -0700 | [diff] [blame] | 641 | |
| 642 | lbtf_deb_host("PREP_CMD: command 0x%04x\n", command); |
| 643 | |
Luis Carlos Cobo | 691cdb4 | 2008-08-14 10:41:01 -0700 | [diff] [blame] | 644 | cmdnode->cmdwaitqwoken = 0; |
| 645 | lbtf_queue_cmd(priv, cmdnode); |
| 646 | queue_work(lbtf_wq, &priv->cmd_work); |
| 647 | |
Steve deRosier | e9bd5bc | 2010-04-25 14:40:46 -0700 | [diff] [blame] | 648 | done: |
| 649 | lbtf_deb_leave_args(LBTF_DEB_HOST, "ret %p", cmdnode); |
Luis Carlos Cobo | 691cdb4 | 2008-08-14 10:41:01 -0700 | [diff] [blame] | 650 | return cmdnode; |
| 651 | } |
| 652 | |
| 653 | void lbtf_cmd_async(struct lbtf_private *priv, uint16_t command, |
| 654 | struct cmd_header *in_cmd, int in_cmd_size) |
| 655 | { |
Steve deRosier | e9bd5bc | 2010-04-25 14:40:46 -0700 | [diff] [blame] | 656 | lbtf_deb_enter(LBTF_DEB_CMD); |
Luis Carlos Cobo | 691cdb4 | 2008-08-14 10:41:01 -0700 | [diff] [blame] | 657 | __lbtf_cmd_async(priv, command, in_cmd, in_cmd_size, NULL, 0); |
Steve deRosier | e9bd5bc | 2010-04-25 14:40:46 -0700 | [diff] [blame] | 658 | lbtf_deb_leave(LBTF_DEB_CMD); |
Luis Carlos Cobo | 691cdb4 | 2008-08-14 10:41:01 -0700 | [diff] [blame] | 659 | } |
| 660 | |
| 661 | int __lbtf_cmd(struct lbtf_private *priv, uint16_t command, |
| 662 | struct cmd_header *in_cmd, int in_cmd_size, |
| 663 | int (*callback)(struct lbtf_private *, |
| 664 | unsigned long, struct cmd_header *), |
| 665 | unsigned long callback_arg) |
| 666 | { |
| 667 | struct cmd_ctrl_node *cmdnode; |
| 668 | unsigned long flags; |
| 669 | int ret = 0; |
| 670 | |
Steve deRosier | e9bd5bc | 2010-04-25 14:40:46 -0700 | [diff] [blame] | 671 | lbtf_deb_enter(LBTF_DEB_HOST); |
| 672 | |
Luis Carlos Cobo | 691cdb4 | 2008-08-14 10:41:01 -0700 | [diff] [blame] | 673 | cmdnode = __lbtf_cmd_async(priv, command, in_cmd, in_cmd_size, |
| 674 | callback, callback_arg); |
Steve deRosier | e9bd5bc | 2010-04-25 14:40:46 -0700 | [diff] [blame] | 675 | if (IS_ERR(cmdnode)) { |
| 676 | ret = PTR_ERR(cmdnode); |
| 677 | goto done; |
| 678 | } |
Luis Carlos Cobo | 691cdb4 | 2008-08-14 10:41:01 -0700 | [diff] [blame] | 679 | |
| 680 | might_sleep(); |
| 681 | ret = wait_event_interruptible(cmdnode->cmdwait_q, |
| 682 | cmdnode->cmdwaitqwoken); |
Steve deRosier | e9bd5bc | 2010-04-25 14:40:46 -0700 | [diff] [blame] | 683 | if (ret) { |
| 684 | pr_info("PREP_CMD: command 0x%04x interrupted by signal: %d\n", |
| 685 | command, ret); |
| 686 | goto done; |
Luis Carlos Cobo | 691cdb4 | 2008-08-14 10:41:01 -0700 | [diff] [blame] | 687 | } |
| 688 | |
| 689 | spin_lock_irqsave(&priv->driver_lock, flags); |
| 690 | ret = cmdnode->result; |
| 691 | if (ret) |
Steve deRosier | e9bd5bc | 2010-04-25 14:40:46 -0700 | [diff] [blame] | 692 | pr_info("PREP_CMD: command 0x%04x failed: %d\n", |
Luis Carlos Cobo | 691cdb4 | 2008-08-14 10:41:01 -0700 | [diff] [blame] | 693 | command, ret); |
| 694 | |
| 695 | __lbtf_cleanup_and_insert_cmd(priv, cmdnode); |
| 696 | spin_unlock_irqrestore(&priv->driver_lock, flags); |
| 697 | |
Steve deRosier | e9bd5bc | 2010-04-25 14:40:46 -0700 | [diff] [blame] | 698 | done: |
| 699 | lbtf_deb_leave_args(LBTF_DEB_HOST, "ret %d", ret); |
Luis Carlos Cobo | 691cdb4 | 2008-08-14 10:41:01 -0700 | [diff] [blame] | 700 | return ret; |
| 701 | } |
| 702 | EXPORT_SYMBOL_GPL(__lbtf_cmd); |
| 703 | |
| 704 | /* Call holding driver_lock */ |
| 705 | void lbtf_cmd_response_rx(struct lbtf_private *priv) |
| 706 | { |
| 707 | priv->cmd_response_rxed = 1; |
| 708 | queue_work(lbtf_wq, &priv->cmd_work); |
| 709 | } |
| 710 | EXPORT_SYMBOL_GPL(lbtf_cmd_response_rx); |
| 711 | |
| 712 | int lbtf_process_rx_command(struct lbtf_private *priv) |
| 713 | { |
| 714 | uint16_t respcmd, curcmd; |
| 715 | struct cmd_header *resp; |
| 716 | int ret = 0; |
| 717 | unsigned long flags; |
| 718 | uint16_t result; |
| 719 | |
Steve deRosier | e9bd5bc | 2010-04-25 14:40:46 -0700 | [diff] [blame] | 720 | lbtf_deb_enter(LBTF_DEB_CMD); |
| 721 | |
Luis Carlos Cobo | 691cdb4 | 2008-08-14 10:41:01 -0700 | [diff] [blame] | 722 | mutex_lock(&priv->lock); |
| 723 | spin_lock_irqsave(&priv->driver_lock, flags); |
| 724 | |
| 725 | if (!priv->cur_cmd) { |
| 726 | ret = -1; |
| 727 | spin_unlock_irqrestore(&priv->driver_lock, flags); |
| 728 | goto done; |
| 729 | } |
| 730 | |
| 731 | resp = (void *)priv->cmd_resp_buff; |
| 732 | curcmd = le16_to_cpu(priv->cur_cmd->cmdbuf->command); |
| 733 | respcmd = le16_to_cpu(resp->command); |
| 734 | result = le16_to_cpu(resp->result); |
| 735 | |
Lubomir Rintel | 744972b | 2019-02-10 20:47:35 +0100 | [diff] [blame] | 736 | lbtf_deb_cmd("libertastf: cmd response 0x%04x, seq %d, size %d\n", |
| 737 | respcmd, le16_to_cpu(resp->seqnum), |
| 738 | le16_to_cpu(resp->size)); |
Luis Carlos Cobo | 691cdb4 | 2008-08-14 10:41:01 -0700 | [diff] [blame] | 739 | |
| 740 | if (resp->seqnum != priv->cur_cmd->cmdbuf->seqnum) { |
| 741 | spin_unlock_irqrestore(&priv->driver_lock, flags); |
| 742 | ret = -1; |
| 743 | goto done; |
| 744 | } |
| 745 | if (respcmd != CMD_RET(curcmd)) { |
| 746 | spin_unlock_irqrestore(&priv->driver_lock, flags); |
| 747 | ret = -1; |
| 748 | goto done; |
| 749 | } |
| 750 | |
| 751 | if (resp->result == cpu_to_le16(0x0004)) { |
| 752 | /* 0x0004 means -EAGAIN. Drop the response, let it time out |
| 753 | and be resubmitted */ |
| 754 | spin_unlock_irqrestore(&priv->driver_lock, flags); |
| 755 | ret = -1; |
| 756 | goto done; |
| 757 | } |
| 758 | |
| 759 | /* Now we got response from FW, cancel the command timer */ |
| 760 | del_timer(&priv->command_timer); |
| 761 | priv->cmd_timed_out = 0; |
| 762 | if (priv->nr_retries) |
| 763 | priv->nr_retries = 0; |
| 764 | |
| 765 | /* If the command is not successful, cleanup and return failure */ |
| 766 | if ((result != 0 || !(respcmd & 0x8000))) { |
| 767 | /* |
| 768 | * Handling errors here |
| 769 | */ |
| 770 | switch (respcmd) { |
| 771 | case CMD_RET(CMD_GET_HW_SPEC): |
| 772 | case CMD_RET(CMD_802_11_RESET): |
Steve deRosier | e9bd5bc | 2010-04-25 14:40:46 -0700 | [diff] [blame] | 773 | pr_info("libertastf: reset failed\n"); |
Luis Carlos Cobo | 691cdb4 | 2008-08-14 10:41:01 -0700 | [diff] [blame] | 774 | break; |
| 775 | |
| 776 | } |
| 777 | lbtf_complete_command(priv, priv->cur_cmd, result); |
| 778 | spin_unlock_irqrestore(&priv->driver_lock, flags); |
| 779 | |
| 780 | ret = -1; |
| 781 | goto done; |
| 782 | } |
| 783 | |
| 784 | spin_unlock_irqrestore(&priv->driver_lock, flags); |
| 785 | |
| 786 | if (priv->cur_cmd && priv->cur_cmd->callback) { |
| 787 | ret = priv->cur_cmd->callback(priv, priv->cur_cmd->callback_arg, |
| 788 | resp); |
| 789 | } |
| 790 | spin_lock_irqsave(&priv->driver_lock, flags); |
| 791 | |
| 792 | if (priv->cur_cmd) { |
| 793 | /* Clean up and Put current command back to cmdfreeq */ |
| 794 | lbtf_complete_command(priv, priv->cur_cmd, result); |
| 795 | } |
| 796 | spin_unlock_irqrestore(&priv->driver_lock, flags); |
| 797 | |
| 798 | done: |
| 799 | mutex_unlock(&priv->lock); |
Steve deRosier | e9bd5bc | 2010-04-25 14:40:46 -0700 | [diff] [blame] | 800 | lbtf_deb_leave_args(LBTF_DEB_CMD, "ret %d", ret); |
Luis Carlos Cobo | 691cdb4 | 2008-08-14 10:41:01 -0700 | [diff] [blame] | 801 | return ret; |
| 802 | } |