summaryrefslogtreecommitdiffstats
path: root/drivers/net/wireless/iwlwifi/iwl-fh.h
blob: f2688d551830c42a42078e13c9b264a6b05e4311 (plain)
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
/******************************************************************************
 *
 * 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 - 2008 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:
 * James P. Ketrenos <ipw2100-admin@linux.intel.com>
 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
 *
 * BSD LICENSE
 *
 * Copyright(c) 2005 - 2008 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 __iwl_fh_h__
#define __iwl_fh_h__

/****************************/
/* Flow Handler Definitions */
/****************************/

/**
 * This I/O area is directly read/writable by driver (e.g. Linux uses writel())
 * Addresses are offsets from device's PCI hardware base address.
 */
#define FH_MEM_LOWER_BOUND                   (0x1000)
#define FH_MEM_UPPER_BOUND                   (0x1EF0)

/**
 * Keep-Warm (KW) buffer base address.
 *
 * Driver must allocate a 4KByte buffer that is used by 4965 for keeping the
 * host DRAM powered on (via dummy accesses to DRAM) to maintain low-latency
 * DRAM access when 4965 is Txing or Rxing.  The dummy accesses prevent host
 * from going into a power-savings mode that would cause higher DRAM latency,
 * and possible data over/under-runs, before all Tx/Rx is complete.
 *
 * Driver loads FH_KW_MEM_ADDR_REG with the physical address (bits 35:4)
 * of the buffer, which must be 4K aligned.  Once this is set up, the 4965
 * automatically invokes keep-warm accesses when normal accesses might not
 * be sufficient to maintain fast DRAM response.
 *
 * Bit fields:
 *  31-0:  Keep-warm buffer physical base address [35:4], must be 4K aligned
 */
#define FH_KW_MEM_ADDR_REG		     (FH_MEM_LOWER_BOUND + 0x97C)


/**
 * TFD Circular Buffers Base (CBBC) addresses
 *
 * 4965 has 16 base pointer registers, one for each of 16 host-DRAM-resident
 * circular buffers (CBs/queues) containing Transmit Frame Descriptors (TFDs)
 * (see struct iwl_tfd_frame).  These 16 pointer registers are offset by 0x04
 * bytes from one another.  Each TFD circular buffer in DRAM must be 256-byte
 * aligned (address bits 0-7 must be 0).
 *
 * Bit fields in each pointer register:
 *  27-0: TFD CB physical base address [35:8], must be 256-byte aligned
 */
#define FH_MEM_CBBC_LOWER_BOUND          (FH_MEM_LOWER_BOUND + 0x9D0)
#define FH_MEM_CBBC_UPPER_BOUND          (FH_MEM_LOWER_BOUND + 0xA10)

/* Find TFD CB base pointer for given queue (range 0-15). */
#define FH_MEM_CBBC_QUEUE(x)  (FH_MEM_CBBC_LOWER_BOUND + (x) * 0x4)


/**
 * Rx SRAM Control and Status Registers (RSCSR)
 *
 * These registers provide handshake between driver and 4965 for the Rx queue
 * (this queue handles *all* command responses, notifications, Rx data, etc.
 * sent from 4965 uCode to host driver).  Unlike Tx, there is only one Rx
 * queue, and only one Rx DMA/FIFO channel.  Also unlike Tx, which can
 * concatenate up to 20 DRAM buffers to form a Tx frame, each Receive Buffer
 * Descriptor (RBD) points to only one Rx Buffer (RB); there is a 1:1
 * mapping between RBDs and RBs.
 *
 * Driver must allocate host DRAM memory for the following, and set the
 * physical address of each into 4965 registers:
 *
 * 1)  Receive Buffer Descriptor (RBD) circular buffer (CB), typically with 256
 *     entries (although any power of 2, up to 4096, is selectable by driver).
 *     Each entry (1 dword) points to a receive buffer (RB) of consistent size
 *     (typically 4K, although 8K or 16K are also selectable by driver).
 *     Driver sets up RB size and number of RBDs in the CB via Rx config
 *     register FH_MEM_RCSR_CHNL0_CONFIG_REG.
 *
 *     Bit fields within one RBD:
 *     27-0:  Receive Buffer physical address bits [35:8], 256-byte aligned
 *
 *     Driver sets physical address [35:8] of base of RBD circular buffer
 *     into FH_RSCSR_CHNL0_RBDCB_BASE_REG [27:0].
 *
 * 2)  Rx status buffer, 8 bytes, in which 4965 indicates which Rx Buffers
 *     (RBs) have been filled, via a "write pointer", actually the index of
 *     the RB's corresponding RBD within the circular buffer.  Driver sets
 *     physical address [35:4] into FH_RSCSR_CHNL0_STTS_WPTR_REG [31:0].
 *
 *     Bit fields in lower dword of Rx status buffer (upper dword not used
 *     by driver; see struct iwl4965_shared, val0):
 *     31-12:  Not used by driver
 *     11- 0:  Index of last filled Rx buffer descriptor
 *             (4965 writes, driver reads this value)
 *
 * As the driver prepares Receive Buffers (RBs) for 4965 to fill, driver must
 * enter pointers to these RBs into contiguous RBD circular buffer entries,
 * and update the 4965's "write" index register,
 * FH_RSCSR_CHNL0_RBDCB_WPTR_REG.
 *
 * This "write" index corresponds to the *next* RBD that the driver will make
 * available, i.e. one RBD past the tail of the ready-to-fill RBDs within
 * the circular buffer.  This value should initially be 0 (before preparing any
 * RBs), should be 8 after preparing the first 8 RBs (for example), and must
 * wrap back to 0 at the end of the circular buffer (but don't wrap before
 * "read" index has advanced past 1!  See below).
 * NOTE:  4965 EXPECTS THE WRITE INDEX TO BE INCREMENTED IN MULTIPLES OF 8.
 *
 * As the 4965 fills RBs (referenced from contiguous RBDs within the circular
 * buffer), it updates the Rx status buffer in host DRAM, 2) described above,
 * to tell the driver the index of the latest filled RBD.  The driver must
 * read this "read" index from DRAM after receiving an Rx interrupt from 4965.
 *
 * The driver must also internally keep track of a third index, which is the
 * next RBD to process.  When receiving an Rx interrupt, driver should process
 * all filled but unprocessed RBs up to, but not including, the RB
 * corresponding to the "read" index.  For example, if "read" index becomes "1",
 * driver may process the RB pointed to by RBD 0.  Depending on volume of
 * traffic, there may be many RBs to process.
 *
 * If read index == write index, 4965 thinks there is no room to put new data.
 * Due to this, the maximum number of filled RBs is 255, instead of 256.  To
 * be safe, make sure that there is a gap of at least 2 RBDs between "write"
 * and "read" indexes; that is, make sure that there are no more than 254
 * buffers waiting to be filled.
 */
#define FH_MEM_RSCSR_LOWER_BOUND	(FH_MEM_LOWER_BOUND + 0xBC0)
#define FH_MEM_RSCSR_UPPER_BOUND	(FH_MEM_LOWER_BOUND + 0xC00)
#define FH_MEM_RSCSR_CHNL0		(FH_MEM_RSCSR_LOWER_BOUND)

/**
 * Physical base address of 8-byte Rx Status buffer.
 * Bit fields:
 *  31-0: Rx status buffer physical base address [35:4], must 16-byte aligned.
 */
#define FH_RSCSR_CHNL0_STTS_WPTR_REG	(FH_MEM_RSCSR_CHNL0)

/**
 * Physical base address of Rx Buffer Descriptor Circular Buffer.
 * Bit fields:
 *  27-0:  RBD CD physical base address [35:8], must be 256-byte aligned.
 */
#define FH_RSCSR_CHNL0_RBDCB_BASE_REG	(FH_MEM_RSCSR_CHNL0 + 0x004)

/**
 * Rx write pointer (index, really!).
 * Bit fields:
 *  11-0:  Index of driver's most recent prepared-to-be-filled RBD, + 1.
 *         NOTE:  For 256-entry circular buffer, use only bits [7:0].
 */
#define FH_RSCSR_CHNL0_RBDCB_WPTR_REG	(FH_MEM_RSCSR_CHNL0 + 0x008)
#define FH_RSCSR_CHNL0_WPTR        (FH_RSCSR_CHNL0_RBDCB_WPTR_REG)


/**
 * Rx Config/Status Registers (RCSR)
 * Rx Config Reg for channel 0 (only channel used)
 *
 * Driver must initialize FH_MEM_RCSR_CHNL0_CONFIG_REG as follows for
 * normal operation (see bit fields).
 *
 * Clearing FH_MEM_RCSR_CHNL0_CONFIG_REG to 0 turns off Rx DMA.
 * Driver should poll FH_MEM_RSSR_RX_STATUS_REG	for
 * FH_RSSR_CHNL0_RX_STATUS_CHNL_IDLE (bit 24) before continuing.
 *
 * Bit fields:
 * 31-30: Rx DMA channel enable: '00' off/pause, '01' pause at end of frame,
 *        '10' operate normally
 * 29-24: reserved
 * 23-20: # RBDs in circular buffer = 2^value; use "8" for 256 RBDs (normal),
 *        min "5" for 32 RBDs, max "12" for 4096 RBDs.
 * 19-18: reserved
 * 17-16: size of each receive buffer; '00' 4K (normal), '01' 8K,
 *        '10' 12K, '11' 16K.
 * 15-14: reserved
 * 13-12: IRQ destination; '00' none, '01' host driver (normal operation)
 * 11- 4: timeout for closing Rx buffer and interrupting host (units 32 usec)
 *        typical value 0x10 (about 1/2 msec)
 *  3- 0: reserved
 */
#define FH_MEM_RCSR_LOWER_BOUND      (FH_MEM_LOWER_BOUND + 0xC00)
#define FH_MEM_RCSR_UPPER_BOUND      (FH_MEM_LOWER_BOUND + 0xCC0)
#define FH_MEM_RCSR_CHNL0            (FH_MEM_RCSR_LOWER_BOUND)

#define FH_MEM_RCSR_CHNL0_CONFIG_REG	(FH_MEM_RCSR_CHNL0)

#define FH_RCSR_CHNL0_RX_CONFIG_RB_TIMEOUT_MSK (0x00000FF0) /* bits 4-11 */
#define FH_RCSR_CHNL0_RX_CONFIG_IRQ_DEST_MSK   (0x00001000) /* bits 12 */
#define FH_RCSR_CHNL0_RX_CONFIG_SINGLE_FRAME_MSK (0x00008000) /* bit 15 */
#define FH_RCSR_CHNL0_RX_CONFIG_RB_SIZE_MSK   (0x00030000) /* bits 16-17 */
#define FH_RCSR_CHNL0_RX_CONFIG_RBDBC_SIZE_MSK (0x00F00000) /* bits 20-23 */
#define FH_RCSR_CHNL0_RX_CONFIG_DMA_CHNL_EN_MSK (0xC0000000) /* bits 30-31*/

#define FH_RCSR_RX_CONFIG_RBDCB_SIZE_POS	(20)
#define FH_RCSR_RX_CONFIG_REG_IRQ_RBTH_POS	(4)
#define RX_RB_TIMEOUT	(0x10)

#define FH_RCSR_RX_CONFIG_CHNL_EN_PAUSE_VAL         (0x00000000)
#define FH_RCSR_RX_CONFIG_CHNL_EN_PAUSE_EOF_VAL     (0x40000000)
#define FH_RCSR_RX_CONFIG_CHNL_EN_ENABLE_VAL        (0x80000000)

#define FH_RCSR_RX_CONFIG_REG_VAL_RB_SIZE_4K    (0x00000000)
#define FH_RCSR_RX_CONFIG_REG_VAL_RB_SIZE_8K    (0x00010000)
#define FH_RCSR_RX_CONFIG_REG_VAL_RB_SIZE_12K   (0x00020000)
#define FH_RCSR_RX_CONFIG_REG_VAL_RB_SIZE_16K   (0x00030000)

#define FH_RCSR_CHNL0_RX_IGNORE_RXF_EMPTY              (0x00000004)
#define FH_RCSR_CHNL0_RX_CONFIG_IRQ_DEST_NO_INT_VAL    (0x00000000)
#define FH_RCSR_CHNL0_RX_CONFIG_IRQ_DEST_INT_HOST_VAL  (0x00001000)


/**
 * Rx Shared Status Registers (RSSR)
 *
 * After stopping Rx DMA channel (writing 0 to
 * FH_MEM_RCSR_CHNL0_CONFIG_REG), driver must poll
 * FH_MEM_RSSR_RX_STATUS_REG until Rx channel is idle.
 *
 * Bit fields:
 *  24:  1 = Channel 0 is idle
 *
 * FH_MEM_RSSR_SHARED_CTRL_REG and FH_MEM_RSSR_RX_ENABLE_ERR_IRQ2DRV
 * contain default values that should not be altered by the driver.
 */
#define FH_MEM_RSSR_LOWER_BOUND           (FH_MEM_LOWER_BOUND + 0xC40)
#define FH_MEM_RSSR_UPPER_BOUND           (FH_MEM_LOWER_BOUND + 0xD00)

#define FH_MEM_RSSR_SHARED_CTRL_REG       (FH_MEM_RSSR_LOWER_BOUND)
#define FH_MEM_RSSR_RX_STATUS_REG	(FH_MEM_RSSR_LOWER_BOUND + 0x004)
#define FH_MEM_RSSR_RX_ENABLE_ERR_IRQ2DRV\
					(FH_MEM_RSSR_LOWER_BOUND + 0x008)

#define FH_RSSR_CHNL0_RX_STATUS_CHNL_IDLE	(0x01000000)

#define FH_MEM_TFDIB_REG1_ADDR_BITSHIFT	28

/**
 * Transmit DMA Channel Control/Status Registers (TCSR)
 *
 * 4965 has one configuration register for each of 8 Tx DMA/FIFO channels
 * supported in hardware (don't confuse these with the 16 Tx queues in DRAM,
 * which feed the DMA/FIFO channels); config regs are separated by 0x20 bytes.
 *
 * To use a Tx DMA channel, driver must initialize its
 * FH_TCSR_CHNL_TX_CONFIG_REG(chnl) with:
 *
 * FH_TCSR_TX_CONFIG_REG_VAL_DMA_CHNL_ENABLE |
 * FH_TCSR_TX_CONFIG_REG_VAL_DMA_CREDIT_ENABLE_VAL
 *
 * All other bits should be 0.
 *
 * Bit fields:
 * 31-30: Tx DMA channel enable: '00' off/pause, '01' pause at end of frame,
 *        '10' operate normally
 * 29- 4: Reserved, set to "0"
 *     3: Enable internal DMA requests (1, normal operation), disable (0)
 *  2- 0: Reserved, set to "0"
 */
#define FH_TCSR_LOWER_BOUND  (FH_MEM_LOWER_BOUND + 0xD00)
#define FH_TCSR_UPPER_BOUND  (FH_MEM_LOWER_BOUND + 0xE60)

/* Find Control/Status reg for given Tx DMA/FIFO channel */
#define FH_TCSR_CHNL_TX_CONFIG_REG(_chnl) \
	(FH_TCSR_LOWER_BOUND + 0x20 * _chnl)

#define FH_TCSR_TX_CONFIG_REG_VAL_DMA_CREDIT_DISABLE_VAL    (0x00000000)
#define FH_TCSR_TX_CONFIG_REG_VAL_DMA_CREDIT_ENABLE_VAL     (0x00000008)

#define FH_TCSR_TX_CONFIG_REG_VAL_DMA_CHNL_PAUSE            (0x00000000)
#define FH_TCSR_TX_CONFIG_REG_VAL_DMA_CHNL_PAUSE_EOF        (0x40000000)
#define FH_TCSR_TX_CONFIG_REG_VAL_DMA_CHNL_ENABLE           (0x80000000)

#define FH_TCSR_CHNL_NUM                            (7)

#define FH_TCSR_CHNL_TX_BUF_STS_REG_VAL_TFDB_EMPTY          (0x00000000)
#define FH_TCSR_CHNL_TX_BUF_STS_REG_VAL_TFDB_WAIT           (0x00002000)
#define FH_TCSR_CHNL_TX_BUF_STS_REG_VAL_TFDB_VALID          (0x00000003)

#define FH_TCSR_TX_CONFIG_REG_VAL_CIRQ_HOST_NOINT           (0x00000000)
#define FH_TCSR_TX_CONFIG_REG_VAL_CIRQ_HOST_ENDTFD          (0x00100000)
#define FH_TCSR_TX_CONFIG_REG_VAL_CIRQ_HOST_IFTFD           (0x00200000)

#define FH_TCSR_CHNL_TX_BUF_STS_REG_POS_TB_NUM      (20)
#define FH_TCSR_CHNL_TX_BUF_STS_REG_POS_TB_IDX      (12)
#define FH_TCSR_CHNL_TX_CONFIG_REG(_chnl) \
	(FH_TCSR_LOWER_BOUND + 0x20 * _chnl)
#define FH_TCSR_CHNL_TX_CREDIT_REG(_chnl) \
	  (FH_TCSR_LOWER_BOUND + 0x20 * _chnl + 0x4)
#define FH_TCSR_CHNL_TX_BUF_STS_REG(_chnl) \
	 (FH_TCSR_LOWER_BOUND + 0x20 * _chnl + 0x8)

/**
 * Tx Shared Status Registers (TSSR)
 *
 * After stopping Tx DMA channel (writing 0 to
 * FH_TCSR_CHNL_TX_CONFIG_REG(chnl)), driver must poll
 * FH_TSSR_TX_STATUS_REG until selected Tx channel is idle
 * (channel's buffers empty | no pending requests).
 *
 * Bit fields:
 * 31-24:  1 = Channel buffers empty (channel 7:0)
 * 23-16:  1 = No pending requests (channel 7:0)
 */
#define FH_TSSR_LOWER_BOUND		(FH_MEM_LOWER_BOUND + 0xEA0)
#define FH_TSSR_UPPER_BOUND		(FH_MEM_LOWER_BOUND + 0xEC0)

#define FH_TSSR_TX_STATUS_REG	(FH_TSSR_LOWER_BOUND + 0x010)

#define FH_TSSR_TX_STATUS_REG_BIT_BUFS_EMPTY(_chnl) ((1 << (_chnl)) << 24)
#define FH_TSSR_TX_STATUS_REG_BIT_NO_PEND_REQ(_chnl) ((1 << (_chnl)) << 16)

#define FH_TSSR_TX_STATUS_REG_MSK_CHNL_IDLE(_chnl) \
	(FH_TSSR_TX_STATUS_REG_BIT_BUFS_EMPTY(_chnl) | \
	FH_TSSR_TX_STATUS_REG_BIT_NO_PEND_REQ(_chnl))



#define FH_REGS_LOWER_BOUND		     (0x1000)
#define FH_REGS_UPPER_BOUND		     (0x2000)

/* Tx service channels */
#define FH_SRVC_CHNL                                (9)
#define FH_SRVC_LOWER_BOUND          (FH_REGS_LOWER_BOUND + 0x9C8)
#define FH_SRVC_UPPER_BOUND          (FH_REGS_LOWER_BOUND + 0x9D0)
#define FH_SRVC_CHNL_SRAM_ADDR_REG(_chnl) \
		(FH_SRVC_LOWER_BOUND + ((_chnl) - 9) * 0x4)

/* TFDB  Area - TFDs buffer table */
#define FH_MEM_TFDIB_DRAM_ADDR_LSB_MSK      (0xFFFFFFFF)
#define FH_TFDIB_LOWER_BOUND       (FH_REGS_LOWER_BOUND + 0x900)
#define FH_TFDIB_UPPER_BOUND       (FH_REGS_LOWER_BOUND + 0x958)
#define FH_TFDIB_CTRL0_REG(_chnl)  (FH_TFDIB_LOWER_BOUND + 0x8 * (_chnl))
#define FH_TFDIB_CTRL1_REG(_chnl)  (FH_TFDIB_LOWER_BOUND + 0x8 * (_chnl) + 0x4)

/* TCSR: tx_config register values */
#define FH_RSCSR_FRAME_SIZE_MSK	(0x00003FFF)	/* bits 0-13 */

#define TFD_QUEUE_SIZE_MAX      (256)
#define TFD_QUEUE_SIZE_BC_DUP	(64)
#define TFD_QUEUE_BC_SIZE	(TFD_QUEUE_SIZE_MAX + TFD_QUEUE_SIZE_BC_DUP)


#endif /* !__iwl_fh_h__ */