Loading...
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 | /****************************************************************************** * * This file is provided under a dual BSD/GPLv2 license. When using or * redistributing this file, you may do so under either license. * * GPL LICENSE SUMMARY * * Copyright(c) 2005 - 2011 Intel Corporation. All rights reserved. * * This program is free software; you can redistribute it and/or modify * it under the terms of version 2 of the GNU General Public License as * published by the Free Software Foundation. * * This program is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, * USA * * The full GNU General Public License is included in this distribution * in the file called LICENSE.GPL. * * Contact Information: * Intel Linux Wireless <ilw@linux.intel.com> * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 * * BSD LICENSE * * Copyright(c) 2005 - 2011 Intel Corporation. All rights reserved. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in * the documentation and/or other materials provided with the * distribution. * * Neither the name Intel Corporation nor the names of its * contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. *****************************************************************************/ #ifndef __il_prph_h__ #define __il_prph_h__ /* * Registers in this file are internal, not PCI bus memory mapped. * Driver accesses these via HBUS_TARG_PRPH_* registers. */ #define PRPH_BASE (0x00000) #define PRPH_END (0xFFFFF) /* APMG (power management) constants */ #define APMG_BASE (PRPH_BASE + 0x3000) #define APMG_CLK_CTRL_REG (APMG_BASE + 0x0000) #define APMG_CLK_EN_REG (APMG_BASE + 0x0004) #define APMG_CLK_DIS_REG (APMG_BASE + 0x0008) #define APMG_PS_CTRL_REG (APMG_BASE + 0x000c) #define APMG_PCIDEV_STT_REG (APMG_BASE + 0x0010) #define APMG_RFKILL_REG (APMG_BASE + 0x0014) #define APMG_RTC_INT_STT_REG (APMG_BASE + 0x001c) #define APMG_RTC_INT_MSK_REG (APMG_BASE + 0x0020) #define APMG_DIGITAL_SVR_REG (APMG_BASE + 0x0058) #define APMG_ANALOG_SVR_REG (APMG_BASE + 0x006C) #define APMS_CLK_VAL_MRB_FUNC_MODE (0x00000001) #define APMG_CLK_VAL_DMA_CLK_RQT (0x00000200) #define APMG_CLK_VAL_BSM_CLK_RQT (0x00000800) #define APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS (0x00400000) #define APMG_PS_CTRL_VAL_RESET_REQ (0x04000000) #define APMG_PS_CTRL_MSK_PWR_SRC (0x03000000) #define APMG_PS_CTRL_VAL_PWR_SRC_VMAIN (0x00000000) #define APMG_PS_CTRL_VAL_PWR_SRC_MAX (0x01000000) /* 3945 only */ #define APMG_PS_CTRL_VAL_PWR_SRC_VAUX (0x02000000) #define APMG_SVR_VOLTAGE_CONFIG_BIT_MSK (0x000001E0) /* bit 8:5 */ #define APMG_SVR_DIGITAL_VOLTAGE_1_32 (0x00000060) #define APMG_PCIDEV_STT_VAL_L1_ACT_DIS (0x00000800) /** * BSM (Bootstrap State Machine) * * The Bootstrap State Machine (BSM) stores a short bootstrap uCode program * in special SRAM that does not power down when the embedded control * processor is sleeping (e.g. for periodic power-saving shutdowns of radio). * * When powering back up after sleeps (or during initial uCode load), the BSM * internally loads the short bootstrap program from the special SRAM into the * embedded processor's instruction SRAM, and starts the processor so it runs * the bootstrap program. * * This bootstrap program loads (via PCI busmaster DMA) instructions and data * images for a uCode program from host DRAM locations. The host driver * indicates DRAM locations and sizes for instruction and data images via the * four BSM_DRAM_* registers. Once the bootstrap program loads the new program, * the new program starts automatically. * * The uCode used for open-source drivers includes two programs: * * 1) Initialization -- performs hardware calibration and sets up some * internal data, then notifies host via "initialize alive" notification * (struct il_init_alive_resp) that it has completed all of its work. * After signal from host, it then loads and starts the runtime program. * The initialization program must be used when initially setting up the * NIC after loading the driver. * * 2) Runtime/Protocol -- performs all normal runtime operations. This * notifies host via "alive" notification (struct il_alive_resp) that it * is ready to be used. * * When initializing the NIC, the host driver does the following procedure: * * 1) Load bootstrap program (instructions only, no data image for bootstrap) * into bootstrap memory. Use dword writes starting at BSM_SRAM_LOWER_BOUND * * 2) Point (via BSM_DRAM_*) to the "initialize" uCode data and instruction * images in host DRAM. * * 3) Set up BSM to copy from BSM SRAM into uCode instruction SRAM when asked: * BSM_WR_MEM_SRC_REG = 0 * BSM_WR_MEM_DST_REG = RTC_INST_LOWER_BOUND * BSM_WR_MEM_DWCOUNT_REG = # dwords in bootstrap instruction image * * 4) Load bootstrap into instruction SRAM: * BSM_WR_CTRL_REG = BSM_WR_CTRL_REG_BIT_START * * 5) Wait for load completion: * Poll BSM_WR_CTRL_REG for BSM_WR_CTRL_REG_BIT_START = 0 * * 6) Enable future boot loads whenever NIC's power management triggers it: * BSM_WR_CTRL_REG = BSM_WR_CTRL_REG_BIT_START_EN * * 7) Start the NIC by removing all reset bits: * CSR_RESET = 0 * * The bootstrap uCode (already in instruction SRAM) loads initialization * uCode. Initialization uCode performs data initialization, sends * "initialize alive" notification to host, and waits for a signal from * host to load runtime code. * * 4) Point (via BSM_DRAM_*) to the "runtime" uCode data and instruction * images in host DRAM. The last register loaded must be the instruction * byte count register ("1" in MSbit tells initialization uCode to load * the runtime uCode): * BSM_DRAM_INST_BYTECOUNT_REG = byte count | BSM_DRAM_INST_LOAD * * 5) Wait for "alive" notification, then issue normal runtime commands. * * Data caching during power-downs: * * Just before the embedded controller powers down (e.g for automatic * power-saving modes, or for RFKILL), uCode stores (via PCI busmaster DMA) * a current snapshot of the embedded processor's data SRAM into host DRAM. * This caches the data while the embedded processor's memory is powered down. * Location and size are controlled by BSM_DRAM_DATA_* registers. * * NOTE: Instruction SRAM does not need to be saved, since that doesn't * change during operation; the original image (from uCode distribution * file) can be used for reload. * * When powering back up, the BSM loads the bootstrap program. Bootstrap looks * at the BSM_DRAM_* registers, which now point to the runtime instruction * image and the cached (modified) runtime data (*not* the initialization * uCode). Bootstrap reloads these runtime images into SRAM, and restarts the * uCode from where it left off before the power-down. * * NOTE: Initialization uCode does *not* run as part of the save/restore * procedure. * * This save/restore method is mostly for autonomous power management during * normal operation (result of C_POWER_TBL). Platform suspend/resume and * RFKILL should use complete restarts (with total re-initialization) of uCode, * allowing total shutdown (including BSM memory). * * Note that, during normal operation, the host DRAM that held the initial * startup data for the runtime code is now being used as a backup data cache * for modified data! If you need to completely re-initialize the NIC, make * sure that you use the runtime data image from the uCode distribution file, * not the modified/saved runtime data. You may want to store a separate * "clean" runtime data image in DRAM to avoid disk reads of distribution file. */ /* BSM bit fields */ #define BSM_WR_CTRL_REG_BIT_START (0x80000000) /* start boot load now */ #define BSM_WR_CTRL_REG_BIT_START_EN (0x40000000) /* enable boot after pwrup */ #define BSM_DRAM_INST_LOAD (0x80000000) /* start program load now */ /* BSM addresses */ #define BSM_BASE (PRPH_BASE + 0x3400) #define BSM_END (PRPH_BASE + 0x3800) #define BSM_WR_CTRL_REG (BSM_BASE + 0x000) /* ctl and status */ #define BSM_WR_MEM_SRC_REG (BSM_BASE + 0x004) /* source in BSM mem */ #define BSM_WR_MEM_DST_REG (BSM_BASE + 0x008) /* dest in SRAM mem */ #define BSM_WR_DWCOUNT_REG (BSM_BASE + 0x00C) /* bytes */ #define BSM_WR_STATUS_REG (BSM_BASE + 0x010) /* bit 0: 1 == done */ /* * Pointers and size regs for bootstrap load and data SRAM save/restore. * NOTE: 3945 pointers use bits 31:0 of DRAM address. * 4965 pointers use bits 35:4 of DRAM address. */ #define BSM_DRAM_INST_PTR_REG (BSM_BASE + 0x090) #define BSM_DRAM_INST_BYTECOUNT_REG (BSM_BASE + 0x094) #define BSM_DRAM_DATA_PTR_REG (BSM_BASE + 0x098) #define BSM_DRAM_DATA_BYTECOUNT_REG (BSM_BASE + 0x09C) /* * BSM special memory, stays powered on during power-save sleeps. * Read/write, address range from LOWER_BOUND to (LOWER_BOUND + SIZE -1) */ #define BSM_SRAM_LOWER_BOUND (PRPH_BASE + 0x3800) #define BSM_SRAM_SIZE (1024) /* bytes */ /* 3945 Tx scheduler registers */ #define ALM_SCD_BASE (PRPH_BASE + 0x2E00) #define ALM_SCD_MODE_REG (ALM_SCD_BASE + 0x000) #define ALM_SCD_ARASTAT_REG (ALM_SCD_BASE + 0x004) #define ALM_SCD_TXFACT_REG (ALM_SCD_BASE + 0x010) #define ALM_SCD_TXF4MF_REG (ALM_SCD_BASE + 0x014) #define ALM_SCD_TXF5MF_REG (ALM_SCD_BASE + 0x020) #define ALM_SCD_SBYP_MODE_1_REG (ALM_SCD_BASE + 0x02C) #define ALM_SCD_SBYP_MODE_2_REG (ALM_SCD_BASE + 0x030) /** * Tx Scheduler * * The Tx Scheduler selects the next frame to be transmitted, choosing TFDs * (Transmit Frame Descriptors) from up to 16 circular Tx queues resident in * host DRAM. It steers each frame's Tx command (which contains the frame * data) into one of up to 7 prioritized Tx DMA FIFO channels within the * device. A queue maps to only one (selectable by driver) Tx DMA channel, * but one DMA channel may take input from several queues. * * Tx DMA FIFOs have dedicated purposes. For 4965, they are used as follows * (cf. default_queue_to_tx_fifo in 4965.c): * * 0 -- EDCA BK (background) frames, lowest priority * 1 -- EDCA BE (best effort) frames, normal priority * 2 -- EDCA VI (video) frames, higher priority * 3 -- EDCA VO (voice) and management frames, highest priority * 4 -- Commands (e.g. RXON, etc.) * 5 -- unused (HCCA) * 6 -- unused (HCCA) * 7 -- not used by driver (device-internal only) * * * Driver should normally map queues 0-6 to Tx DMA/FIFO channels 0-6. * In addition, driver can map the remaining queues to Tx DMA/FIFO * channels 0-3 to support 11n aggregation via EDCA DMA channels. * * The driver sets up each queue to work in one of two modes: * * 1) Scheduler-Ack, in which the scheduler automatically supports a * block-ack (BA) win of up to 64 TFDs. In this mode, each queue * contains TFDs for a unique combination of Recipient Address (RA) * and Traffic Identifier (TID), that is, traffic of a given * Quality-Of-Service (QOS) priority, destined for a single station. * * In scheduler-ack mode, the scheduler keeps track of the Tx status of * each frame within the BA win, including whether it's been transmitted, * and whether it's been acknowledged by the receiving station. The device * automatically processes block-acks received from the receiving STA, * and reschedules un-acked frames to be retransmitted (successful * Tx completion may end up being out-of-order). * * The driver must maintain the queue's Byte Count table in host DRAM * (struct il4965_sched_queue_byte_cnt_tbl) for this mode. * This mode does not support fragmentation. * * 2) FIFO (a.k.a. non-Scheduler-ACK), in which each TFD is processed in order. * The device may automatically retry Tx, but will retry only one frame * at a time, until receiving ACK from receiving station, or reaching * retry limit and giving up. * * The command queue (#4/#9) must use this mode! * This mode does not require use of the Byte Count table in host DRAM. * * Driver controls scheduler operation via 3 means: * 1) Scheduler registers * 2) Shared scheduler data base in internal 4956 SRAM * 3) Shared data in host DRAM * * Initialization: * * When loading, driver should allocate memory for: * 1) 16 TFD circular buffers, each with space for (typically) 256 TFDs. * 2) 16 Byte Count circular buffers in 16 KBytes contiguous memory * (1024 bytes for each queue). * * After receiving "Alive" response from uCode, driver must initialize * the scheduler (especially for queue #4/#9, the command queue, otherwise * the driver can't issue commands!): */ /** * Max Tx win size is the max number of contiguous TFDs that the scheduler * can keep track of at one time when creating block-ack chains of frames. * Note that "64" matches the number of ack bits in a block-ack packet. * Driver should use SCD_WIN_SIZE and SCD_FRAME_LIMIT values to initialize * IL49_SCD_CONTEXT_QUEUE_OFFSET(x) values. */ #define SCD_WIN_SIZE 64 #define SCD_FRAME_LIMIT 64 /* SCD registers are internal, must be accessed via HBUS_TARG_PRPH regs */ #define IL49_SCD_START_OFFSET 0xa02c00 /* * 4965 tells driver SRAM address for internal scheduler structs via this reg. * Value is valid only after "Alive" response from uCode. */ #define IL49_SCD_SRAM_BASE_ADDR (IL49_SCD_START_OFFSET + 0x0) /* * Driver may need to update queue-empty bits after changing queue's * write and read pointers (idxes) during (re-)initialization (i.e. when * scheduler is not tracking what's happening). * Bit fields: * 31-16: Write mask -- 1: update empty bit, 0: don't change empty bit * 15-00: Empty state, one for each queue -- 1: empty, 0: non-empty * NOTE: This register is not used by Linux driver. */ #define IL49_SCD_EMPTY_BITS (IL49_SCD_START_OFFSET + 0x4) /* * Physical base address of array of byte count (BC) circular buffers (CBs). * Each Tx queue has a BC CB in host DRAM to support Scheduler-ACK mode. * This register points to BC CB for queue 0, must be on 1024-byte boundary. * Others are spaced by 1024 bytes. * Each BC CB is 2 bytes * (256 + 64) = 740 bytes, followed by 384 bytes pad. * (Index into a queue's BC CB) = (idx into queue's TFD CB) = (SSN & 0xff). * Bit fields: * 25-00: Byte Count CB physical address [35:10], must be 1024-byte aligned. */ #define IL49_SCD_DRAM_BASE_ADDR (IL49_SCD_START_OFFSET + 0x10) /* * Enables any/all Tx DMA/FIFO channels. * Scheduler generates requests for only the active channels. * Set this to 0xff to enable all 8 channels (normal usage). * Bit fields: * 7- 0: Enable (1), disable (0), one bit for each channel 0-7 */ #define IL49_SCD_TXFACT (IL49_SCD_START_OFFSET + 0x1c) /* * Queue (x) Write Pointers (idxes, really!), one for each Tx queue. * Initialized and updated by driver as new TFDs are added to queue. * NOTE: If using Block Ack, idx must correspond to frame's * Start Sequence Number; idx = (SSN & 0xff) * NOTE: Alternative to HBUS_TARG_WRPTR, which is what Linux driver uses? */ #define IL49_SCD_QUEUE_WRPTR(x) (IL49_SCD_START_OFFSET + 0x24 + (x) * 4) /* * Queue (x) Read Pointers (idxes, really!), one for each Tx queue. * For FIFO mode, idx indicates next frame to transmit. * For Scheduler-ACK mode, idx indicates first frame in Tx win. * Initialized by driver, updated by scheduler. */ #define IL49_SCD_QUEUE_RDPTR(x) (IL49_SCD_START_OFFSET + 0x64 + (x) * 4) /* * Select which queues work in chain mode (1) vs. not (0). * Use chain mode to build chains of aggregated frames. * Bit fields: * 31-16: Reserved * 15-00: Mode, one bit for each queue -- 1: Chain mode, 0: one-at-a-time * NOTE: If driver sets up queue for chain mode, it should be also set up * Scheduler-ACK mode as well, via SCD_QUEUE_STATUS_BITS(x). */ #define IL49_SCD_QUEUECHAIN_SEL (IL49_SCD_START_OFFSET + 0xd0) /* * Select which queues interrupt driver when scheduler increments * a queue's read pointer (idx). * Bit fields: * 31-16: Reserved * 15-00: Interrupt enable, one bit for each queue -- 1: enabled, 0: disabled * NOTE: This functionality is apparently a no-op; driver relies on interrupts * from Rx queue to read Tx command responses and update Tx queues. */ #define IL49_SCD_INTERRUPT_MASK (IL49_SCD_START_OFFSET + 0xe4) /* * Queue search status registers. One for each queue. * Sets up queue mode and assigns queue to Tx DMA channel. * Bit fields: * 19-10: Write mask/enable bits for bits 0-9 * 9: Driver should init to "0" * 8: Scheduler-ACK mode (1), non-Scheduler-ACK (i.e. FIFO) mode (0). * Driver should init to "1" for aggregation mode, or "0" otherwise. * 7-6: Driver should init to "0" * 5: Window Size Left; indicates whether scheduler can request * another TFD, based on win size, etc. Driver should init * this bit to "1" for aggregation mode, or "0" for non-agg. * 4-1: Tx FIFO to use (range 0-7). * 0: Queue is active (1), not active (0). * Other bits should be written as "0" * * NOTE: If enabling Scheduler-ACK mode, chain mode should also be enabled * via SCD_QUEUECHAIN_SEL. */ #define IL49_SCD_QUEUE_STATUS_BITS(x)\ (IL49_SCD_START_OFFSET + 0x104 + (x) * 4) /* Bit field positions */ #define IL49_SCD_QUEUE_STTS_REG_POS_ACTIVE (0) #define IL49_SCD_QUEUE_STTS_REG_POS_TXF (1) #define IL49_SCD_QUEUE_STTS_REG_POS_WSL (5) #define IL49_SCD_QUEUE_STTS_REG_POS_SCD_ACK (8) /* Write masks */ #define IL49_SCD_QUEUE_STTS_REG_POS_SCD_ACT_EN (10) #define IL49_SCD_QUEUE_STTS_REG_MSK (0x0007FC00) /** * 4965 internal SRAM structures for scheduler, shared with driver ... * * Driver should clear and initialize the following areas after receiving * "Alive" response from 4965 uCode, i.e. after initial * uCode load, or after a uCode load done for error recovery: * * SCD_CONTEXT_DATA_OFFSET (size 128 bytes) * SCD_TX_STTS_BITMAP_OFFSET (size 256 bytes) * SCD_TRANSLATE_TBL_OFFSET (size 32 bytes) * * Driver accesses SRAM via HBUS_TARG_MEM_* registers. * Driver reads base address of this scheduler area from SCD_SRAM_BASE_ADDR. * All OFFSET values must be added to this base address. */ /* * Queue context. One 8-byte entry for each of 16 queues. * * Driver should clear this entire area (size 0x80) to 0 after receiving * "Alive" notification from uCode. Additionally, driver should init * each queue's entry as follows: * * LS Dword bit fields: * 0-06: Max Tx win size for Scheduler-ACK. Driver should init to 64. * * MS Dword bit fields: * 16-22: Frame limit. Driver should init to 10 (0xa). * * Driver should init all other bits to 0. * * Init must be done after driver receives "Alive" response from 4965 uCode, * and when setting up queue for aggregation. */ #define IL49_SCD_CONTEXT_DATA_OFFSET 0x380 #define IL49_SCD_CONTEXT_QUEUE_OFFSET(x) \ (IL49_SCD_CONTEXT_DATA_OFFSET + ((x) * 8)) #define IL49_SCD_QUEUE_CTX_REG1_WIN_SIZE_POS (0) #define IL49_SCD_QUEUE_CTX_REG1_WIN_SIZE_MSK (0x0000007F) #define IL49_SCD_QUEUE_CTX_REG2_FRAME_LIMIT_POS (16) #define IL49_SCD_QUEUE_CTX_REG2_FRAME_LIMIT_MSK (0x007F0000) /* * Tx Status Bitmap * * Driver should clear this entire area (size 0x100) to 0 after receiving * "Alive" notification from uCode. Area is used only by device itself; * no other support (besides clearing) is required from driver. */ #define IL49_SCD_TX_STTS_BITMAP_OFFSET 0x400 /* * RAxTID to queue translation mapping. * * When queue is in Scheduler-ACK mode, frames placed in a that queue must be * for only one combination of receiver address (RA) and traffic ID (TID), i.e. * one QOS priority level destined for one station (for this wireless link, * not final destination). The SCD_TRANSLATE_TBL area provides 16 16-bit * mappings, one for each of the 16 queues. If queue is not in Scheduler-ACK * mode, the device ignores the mapping value. * * Bit fields, for each 16-bit map: * 15-9: Reserved, set to 0 * 8-4: Index into device's station table for recipient station * 3-0: Traffic ID (tid), range 0-15 * * Driver should clear this entire area (size 32 bytes) to 0 after receiving * "Alive" notification from uCode. To update a 16-bit map value, driver * must read a dword-aligned value from device SRAM, replace the 16-bit map * value of interest, and write the dword value back into device SRAM. */ #define IL49_SCD_TRANSLATE_TBL_OFFSET 0x500 /* Find translation table dword to read/write for given queue */ #define IL49_SCD_TRANSLATE_TBL_OFFSET_QUEUE(x) \ ((IL49_SCD_TRANSLATE_TBL_OFFSET + ((x) * 2)) & 0xfffffffc) #define IL_SCD_TXFIFO_POS_TID (0) #define IL_SCD_TXFIFO_POS_RA (4) #define IL_SCD_QUEUE_RA_TID_MAP_RATID_MSK (0x01FF) /*********************** END TX SCHEDULER *************************************/ #endif /* __il_prph_h__ */ |