Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame^] | 1 | #include "cmd.h" |
| 2 | |
| 3 | #include <linux/module.h> |
| 4 | #include <linux/crc7.h> |
| 5 | #include <linux/spi/spi.h> |
| 6 | |
| 7 | #include "wl12xx.h" |
| 8 | #include "wl12xx_80211.h" |
| 9 | #include "reg.h" |
| 10 | #include "spi.h" |
| 11 | #include "ps.h" |
| 12 | |
| 13 | int wl12xx_cmd_send(struct wl12xx *wl, u16 type, void *buf, size_t buf_len) |
| 14 | { |
| 15 | struct wl12xx_command cmd; |
| 16 | unsigned long timeout; |
| 17 | size_t cmd_len; |
| 18 | u32 intr; |
| 19 | int ret = 0; |
| 20 | |
| 21 | memset(&cmd, 0, sizeof(cmd)); |
| 22 | cmd.id = type; |
| 23 | cmd.status = 0; |
| 24 | memcpy(cmd.parameters, buf, buf_len); |
| 25 | cmd_len = ALIGN(buf_len, 4) + CMDMBOX_HEADER_LEN; |
| 26 | |
| 27 | wl12xx_ps_elp_wakeup(wl); |
| 28 | |
| 29 | wl12xx_spi_mem_write(wl, wl->cmd_box_addr, &cmd, cmd_len); |
| 30 | |
| 31 | wl12xx_reg_write32(wl, ACX_REG_INTERRUPT_TRIG, INTR_TRIG_CMD); |
| 32 | |
| 33 | timeout = jiffies + msecs_to_jiffies(WL12XX_COMMAND_TIMEOUT); |
| 34 | |
| 35 | intr = wl12xx_reg_read32(wl, ACX_REG_INTERRUPT_NO_CLEAR); |
| 36 | while (!(intr & wl->chip.intr_cmd_complete)) { |
| 37 | if (time_after(jiffies, timeout)) { |
| 38 | wl12xx_error("command complete timeout"); |
| 39 | ret = -ETIMEDOUT; |
| 40 | goto out; |
| 41 | } |
| 42 | |
| 43 | msleep(1); |
| 44 | |
| 45 | intr = wl12xx_reg_read32(wl, ACX_REG_INTERRUPT_NO_CLEAR); |
| 46 | } |
| 47 | |
| 48 | wl12xx_reg_write32(wl, ACX_REG_INTERRUPT_ACK, |
| 49 | wl->chip.intr_cmd_complete); |
| 50 | |
| 51 | out: |
| 52 | wl12xx_ps_elp_sleep(wl); |
| 53 | |
| 54 | return ret; |
| 55 | } |
| 56 | |
| 57 | int wl12xx_cmd_test(struct wl12xx *wl, void *buf, size_t buf_len, u8 answer) |
| 58 | { |
| 59 | int ret; |
| 60 | |
| 61 | wl12xx_debug(DEBUG_CMD, "cmd test"); |
| 62 | |
| 63 | ret = wl12xx_cmd_send(wl, CMD_TEST, buf, buf_len); |
| 64 | if (ret < 0) { |
| 65 | wl12xx_warning("TEST command failed"); |
| 66 | return ret; |
| 67 | } |
| 68 | |
| 69 | if (answer) { |
| 70 | struct wl12xx_command *cmd_answer; |
| 71 | |
| 72 | /* |
| 73 | * The test command got in, we can read the answer. |
| 74 | * The answer would be a wl12xx_command, where the |
| 75 | * parameter array contains the actual answer. |
| 76 | */ |
| 77 | |
| 78 | wl12xx_ps_elp_wakeup(wl); |
| 79 | |
| 80 | wl12xx_spi_mem_read(wl, wl->cmd_box_addr, buf, buf_len); |
| 81 | |
| 82 | wl12xx_ps_elp_sleep(wl); |
| 83 | |
| 84 | cmd_answer = buf; |
| 85 | if (cmd_answer->status != CMD_STATUS_SUCCESS) |
| 86 | wl12xx_error("TEST command answer error: %d", |
| 87 | cmd_answer->status); |
| 88 | } |
| 89 | |
| 90 | return 0; |
| 91 | } |
| 92 | |
| 93 | |
| 94 | int wl12xx_cmd_interrogate(struct wl12xx *wl, u16 ie_id, u16 ie_len, |
| 95 | void *answer) |
| 96 | { |
| 97 | struct wl12xx_command *cmd; |
| 98 | struct acx_header header; |
| 99 | int ret; |
| 100 | |
| 101 | wl12xx_debug(DEBUG_CMD, "cmd interrogate"); |
| 102 | |
| 103 | header.id = ie_id; |
| 104 | header.len = ie_len - sizeof(header); |
| 105 | |
| 106 | ret = wl12xx_cmd_send(wl, CMD_INTERROGATE, &header, sizeof(header)); |
| 107 | if (ret < 0) { |
| 108 | wl12xx_error("INTERROGATE command failed"); |
| 109 | return ret; |
| 110 | } |
| 111 | |
| 112 | wl12xx_ps_elp_wakeup(wl); |
| 113 | |
| 114 | /* the interrogate command got in, we can read the answer */ |
| 115 | wl12xx_spi_mem_read(wl, wl->cmd_box_addr, answer, |
| 116 | CMDMBOX_HEADER_LEN + ie_len); |
| 117 | |
| 118 | wl12xx_ps_elp_sleep(wl); |
| 119 | |
| 120 | cmd = answer; |
| 121 | if (cmd->status != CMD_STATUS_SUCCESS) |
| 122 | wl12xx_error("INTERROGATE command error: %d", |
| 123 | cmd->status); |
| 124 | |
| 125 | return 0; |
| 126 | |
| 127 | } |
| 128 | |
| 129 | int wl12xx_cmd_configure(struct wl12xx *wl, void *ie, int ie_len) |
| 130 | { |
| 131 | int ret; |
| 132 | |
| 133 | wl12xx_debug(DEBUG_CMD, "cmd configure"); |
| 134 | |
| 135 | ret = wl12xx_cmd_send(wl, CMD_CONFIGURE, ie, |
| 136 | ie_len); |
| 137 | if (ret < 0) { |
| 138 | wl12xx_warning("CONFIGURE command NOK"); |
| 139 | return ret; |
| 140 | } |
| 141 | |
| 142 | return 0; |
| 143 | |
| 144 | } |
| 145 | |
| 146 | int wl12xx_cmd_vbm(struct wl12xx *wl, u8 identity, |
| 147 | void *bitmap, u16 bitmap_len, u8 bitmap_control) |
| 148 | { |
| 149 | struct vbm_update_request vbm; |
| 150 | int ret; |
| 151 | |
| 152 | wl12xx_debug(DEBUG_CMD, "cmd vbm"); |
| 153 | |
| 154 | /* Count and period will be filled by the target */ |
| 155 | vbm.tim.bitmap_ctrl = bitmap_control; |
| 156 | if (bitmap_len > PARTIAL_VBM_MAX) { |
| 157 | wl12xx_warning("cmd vbm len is %d B, truncating to %d", |
| 158 | bitmap_len, PARTIAL_VBM_MAX); |
| 159 | bitmap_len = PARTIAL_VBM_MAX; |
| 160 | } |
| 161 | memcpy(vbm.tim.pvb_field, bitmap, bitmap_len); |
| 162 | vbm.tim.identity = identity; |
| 163 | vbm.tim.length = bitmap_len + 3; |
| 164 | |
| 165 | vbm.len = cpu_to_le16(bitmap_len + 5); |
| 166 | |
| 167 | ret = wl12xx_cmd_send(wl, CMD_VBM, &vbm, sizeof(vbm)); |
| 168 | if (ret < 0) { |
| 169 | wl12xx_error("VBM command failed"); |
| 170 | return ret; |
| 171 | } |
| 172 | |
| 173 | return 0; |
| 174 | } |
| 175 | |
| 176 | int wl12xx_cmd_data_path(struct wl12xx *wl, u8 channel, u8 enable) |
| 177 | { |
| 178 | int ret; |
| 179 | u16 cmd_rx, cmd_tx; |
| 180 | |
| 181 | wl12xx_debug(DEBUG_CMD, "cmd data path"); |
| 182 | |
| 183 | if (enable) { |
| 184 | cmd_rx = CMD_ENABLE_RX; |
| 185 | cmd_tx = CMD_ENABLE_TX; |
| 186 | } else { |
| 187 | cmd_rx = CMD_DISABLE_RX; |
| 188 | cmd_tx = CMD_DISABLE_TX; |
| 189 | } |
| 190 | |
| 191 | ret = wl12xx_cmd_send(wl, cmd_rx, &channel, sizeof(channel)); |
| 192 | if (ret < 0) { |
| 193 | wl12xx_error("rx %s cmd for channel %d failed", |
| 194 | enable ? "start" : "stop", channel); |
| 195 | return ret; |
| 196 | } |
| 197 | |
| 198 | wl12xx_debug(DEBUG_BOOT, "rx %s cmd channel %d", |
| 199 | enable ? "start" : "stop", channel); |
| 200 | |
| 201 | ret = wl12xx_cmd_send(wl, cmd_tx, &channel, sizeof(channel)); |
| 202 | if (ret < 0) { |
| 203 | wl12xx_error("tx %s cmd for channel %d failed", |
| 204 | enable ? "start" : "stop", channel); |
| 205 | return ret; |
| 206 | } |
| 207 | |
| 208 | wl12xx_debug(DEBUG_BOOT, "tx %s cmd channel %d", |
| 209 | enable ? "start" : "stop", channel); |
| 210 | |
| 211 | return 0; |
| 212 | } |
| 213 | |
| 214 | int wl12xx_cmd_join(struct wl12xx *wl, u8 bss_type, u8 dtim_interval, |
| 215 | u16 beacon_interval, u8 wait) |
| 216 | { |
| 217 | unsigned long timeout; |
| 218 | struct cmd_join join = {}; |
| 219 | int ret, i; |
| 220 | u8 *bssid; |
| 221 | |
| 222 | /* FIXME: this should be in main.c */ |
| 223 | ret = wl12xx_acx_frame_rates(wl, DEFAULT_HW_GEN_TX_RATE, |
| 224 | DEFAULT_HW_GEN_MODULATION_TYPE, |
| 225 | wl->tx_mgmt_frm_rate, |
| 226 | wl->tx_mgmt_frm_mod); |
| 227 | if (ret < 0) |
| 228 | return ret; |
| 229 | |
| 230 | wl12xx_debug(DEBUG_CMD, "cmd join"); |
| 231 | |
| 232 | /* Reverse order BSSID */ |
| 233 | bssid = (u8 *)&join.bssid_lsb; |
| 234 | for (i = 0; i < ETH_ALEN; i++) |
| 235 | bssid[i] = wl->bssid[ETH_ALEN - i - 1]; |
| 236 | |
| 237 | join.rx_config_options = wl->rx_config; |
| 238 | join.rx_filter_options = wl->rx_filter; |
| 239 | |
| 240 | join.basic_rate_set = RATE_MASK_1MBPS | RATE_MASK_2MBPS | |
| 241 | RATE_MASK_5_5MBPS | RATE_MASK_11MBPS; |
| 242 | |
| 243 | join.beacon_interval = beacon_interval; |
| 244 | join.dtim_interval = dtim_interval; |
| 245 | join.bss_type = bss_type; |
| 246 | join.channel = wl->channel; |
| 247 | join.ctrl = JOIN_CMD_CTRL_TX_FLUSH; |
| 248 | |
| 249 | ret = wl12xx_cmd_send(wl, CMD_START_JOIN, &join, sizeof(join)); |
| 250 | if (ret < 0) { |
| 251 | wl12xx_error("failed to initiate cmd join"); |
| 252 | return ret; |
| 253 | } |
| 254 | |
| 255 | timeout = msecs_to_jiffies(JOIN_TIMEOUT); |
| 256 | |
| 257 | /* |
| 258 | * ugly hack: we should wait for JOIN_EVENT_COMPLETE_ID but to |
| 259 | * simplify locking we just sleep instead, for now |
| 260 | */ |
| 261 | if (wait) |
| 262 | msleep(10); |
| 263 | |
| 264 | return 0; |
| 265 | } |
| 266 | |
| 267 | int wl12xx_cmd_ps_mode(struct wl12xx *wl, u8 ps_mode) |
| 268 | { |
| 269 | int ret; |
| 270 | struct acx_ps_params ps_params; |
| 271 | |
| 272 | /* FIXME: this should be in ps.c */ |
| 273 | ret = wl12xx_acx_wake_up_conditions(wl, wl->listen_int); |
| 274 | if (ret < 0) { |
| 275 | wl12xx_error("Couldnt set wake up conditions"); |
| 276 | return ret; |
| 277 | } |
| 278 | |
| 279 | wl12xx_debug(DEBUG_CMD, "cmd set ps mode"); |
| 280 | |
| 281 | ps_params.ps_mode = ps_mode; |
| 282 | ps_params.send_null_data = 1; |
| 283 | ps_params.retries = 5; |
| 284 | ps_params.hang_over_period = 128; |
| 285 | ps_params.null_data_rate = 1; /* 1 Mbps */ |
| 286 | |
| 287 | ret = wl12xx_cmd_send(wl, CMD_SET_PS_MODE, &ps_params, |
| 288 | sizeof(ps_params)); |
| 289 | if (ret < 0) { |
| 290 | wl12xx_error("cmd set_ps_mode failed"); |
| 291 | return ret; |
| 292 | } |
| 293 | |
| 294 | return 0; |
| 295 | } |
| 296 | |
| 297 | int wl12xx_cmd_read_memory(struct wl12xx *wl, u32 addr, u32 len, void *answer) |
| 298 | { |
| 299 | struct cmd_read_write_memory mem_cmd, *mem_answer; |
| 300 | struct wl12xx_command cmd; |
| 301 | int ret; |
| 302 | |
| 303 | wl12xx_debug(DEBUG_CMD, "cmd read memory"); |
| 304 | |
| 305 | memset(&mem_cmd, 0, sizeof(mem_cmd)); |
| 306 | mem_cmd.addr = addr; |
| 307 | mem_cmd.size = len; |
| 308 | |
| 309 | ret = wl12xx_cmd_send(wl, CMD_READ_MEMORY, &mem_cmd, sizeof(mem_cmd)); |
| 310 | if (ret < 0) { |
| 311 | wl12xx_error("read memory command failed: %d", ret); |
| 312 | return ret; |
| 313 | } |
| 314 | |
| 315 | /* the read command got in, we can now read the answer */ |
| 316 | wl12xx_spi_mem_read(wl, wl->cmd_box_addr, &cmd, |
| 317 | CMDMBOX_HEADER_LEN + sizeof(mem_cmd)); |
| 318 | |
| 319 | if (cmd.status != CMD_STATUS_SUCCESS) |
| 320 | wl12xx_error("error in read command result: %d", cmd.status); |
| 321 | |
| 322 | mem_answer = (struct cmd_read_write_memory *) cmd.parameters; |
| 323 | memcpy(answer, mem_answer->value, len); |
| 324 | |
| 325 | return 0; |
| 326 | } |
| 327 | |
| 328 | int wl12xx_cmd_template_set(struct wl12xx *wl, u16 cmd_id, |
| 329 | void *buf, size_t buf_len) |
| 330 | { |
| 331 | struct wl12xx_cmd_packet_template template; |
| 332 | int ret; |
| 333 | |
| 334 | wl12xx_debug(DEBUG_CMD, "cmd template %d", cmd_id); |
| 335 | |
| 336 | memset(&template, 0, sizeof(template)); |
| 337 | |
| 338 | WARN_ON(buf_len > WL12XX_MAX_TEMPLATE_SIZE); |
| 339 | buf_len = min_t(size_t, buf_len, WL12XX_MAX_TEMPLATE_SIZE); |
| 340 | template.size = cpu_to_le16(buf_len); |
| 341 | |
| 342 | if (buf) |
| 343 | memcpy(template.template, buf, buf_len); |
| 344 | |
| 345 | ret = wl12xx_cmd_send(wl, cmd_id, &template, |
| 346 | sizeof(template.size) + buf_len); |
| 347 | if (ret < 0) { |
| 348 | wl12xx_warning("cmd set_template failed: %d", ret); |
| 349 | return ret; |
| 350 | } |
| 351 | |
| 352 | return 0; |
| 353 | } |