1 /******************************************************************************
2  *
3  * Copyright(c) 2003 - 2011 Intel Corporation. All rights reserved.
4  *
5  * This program is free software; you can redistribute it and/or modify it
6  * under the terms of version 2 of the GNU General Public License as
7  * published by the Free Software Foundation.
8  *
9  * This program is distributed in the hope that it will be useful, but WITHOUT
10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
12  * more details.
13  *
14  * You should have received a copy of the GNU General Public License along with
15  * this program; if not, write to the Free Software Foundation, Inc.,
16  * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
17  *
18  * The full GNU General Public License is included in this distribution in the
19  * file called LICENSE.
20  *
21  * Contact Information:
22  *  Intel Linux Wireless <ilw@linux.intel.com>
23  * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
24  *
25  *****************************************************************************/
26 
27 #ifndef __il_3945_h__
28 #define __il_3945_h__
29 
30 #include <linux/pci.h>		/* for struct pci_device_id */
31 #include <linux/kernel.h>
32 #include <net/ieee80211_radiotap.h>
33 
34 /* Hardware specific file defines the PCI IDs table for that hardware module */
35 extern const struct pci_device_id il3945_hw_card_ids[];
36 
37 #include "common.h"
38 
39 /* Highest firmware API version supported */
40 #define IL3945_UCODE_API_MAX 2
41 
42 /* Lowest firmware API version supported */
43 #define IL3945_UCODE_API_MIN 1
44 
45 #define IL3945_FW_PRE	"iwlwifi-3945-"
46 #define _IL3945_MODULE_FIRMWARE(api) IL3945_FW_PRE #api ".ucode"
47 #define IL3945_MODULE_FIRMWARE(api) _IL3945_MODULE_FIRMWARE(api)
48 
49 /* Default noise level to report when noise measurement is not available.
50  *   This may be because we're:
51  *   1)  Not associated (4965, no beacon stats being sent to driver)
52  *   2)  Scanning (noise measurement does not apply to associated channel)
53  *   3)  Receiving CCK (3945 delivers noise info only for OFDM frames)
54  * Use default noise value of -127 ... this is below the range of measurable
55  *   Rx dBm for either 3945 or 4965, so it can indicate "unmeasurable" to user.
56  *   Also, -127 works better than 0 when averaging frames with/without
57  *   noise info (e.g. averaging might be done in app); measured dBm values are
58  *   always negative ... using a negative value as the default keeps all
59  *   averages within an s8's (used in some apps) range of negative values. */
60 #define IL_NOISE_MEAS_NOT_AVAILABLE (-127)
61 
62 /* Module parameters accessible from iwl-*.c */
63 extern struct il_mod_params il3945_mod_params;
64 
65 struct il3945_rate_scale_data {
66 	u64 data;
67 	s32 success_counter;
68 	s32 success_ratio;
69 	s32 counter;
70 	s32 average_tpt;
71 	unsigned long stamp;
72 };
73 
74 struct il3945_rs_sta {
75 	spinlock_t lock;
76 	struct il_priv *il;
77 	s32 *expected_tpt;
78 	unsigned long last_partial_flush;
79 	unsigned long last_flush;
80 	u32 flush_time;
81 	u32 last_tx_packets;
82 	u32 tx_packets;
83 	u8 tgg;
84 	u8 flush_pending;
85 	u8 start_rate;
86 	struct timer_list rate_scale_flush;
87 	struct il3945_rate_scale_data win[RATE_COUNT_3945];
88 #ifdef CONFIG_MAC80211_DEBUGFS
89 	struct dentry *rs_sta_dbgfs_stats_table_file;
90 #endif
91 
92 	/* used to be in sta_info */
93 	int last_txrate_idx;
94 };
95 
96 /*
97  * The common struct MUST be first because it is shared between
98  * 3945 and 4965!
99  */
100 struct il3945_sta_priv {
101 	struct il_station_priv_common common;
102 	struct il3945_rs_sta rs_sta;
103 };
104 
105 enum il3945_antenna {
106 	IL_ANTENNA_DIVERSITY,
107 	IL_ANTENNA_MAIN,
108 	IL_ANTENNA_AUX
109 };
110 
111 /*
112  * RTS threshold here is total size [2347] minus 4 FCS bytes
113  * Per spec:
114  *   a value of 0 means RTS on all data/management packets
115  *   a value > max MSDU size means no RTS
116  * else RTS for data/management frames where MPDU is larger
117  *   than RTS value.
118  */
119 #define DEFAULT_RTS_THRESHOLD     2347U
120 #define MIN_RTS_THRESHOLD         0U
121 #define MAX_RTS_THRESHOLD         2347U
122 #define MAX_MSDU_SIZE		  2304U
123 #define MAX_MPDU_SIZE		  2346U
124 #define DEFAULT_BEACON_INTERVAL   100U
125 #define	DEFAULT_SHORT_RETRY_LIMIT 7U
126 #define	DEFAULT_LONG_RETRY_LIMIT  4U
127 
128 #define IL_TX_FIFO_AC0	0
129 #define IL_TX_FIFO_AC1	1
130 #define IL_TX_FIFO_AC2	2
131 #define IL_TX_FIFO_AC3	3
132 #define IL_TX_FIFO_HCCA_1	5
133 #define IL_TX_FIFO_HCCA_2	6
134 #define IL_TX_FIFO_NONE	7
135 
136 #define IEEE80211_DATA_LEN              2304
137 #define IEEE80211_4ADDR_LEN             30
138 #define IEEE80211_HLEN                  (IEEE80211_4ADDR_LEN)
139 #define IEEE80211_FRAME_LEN             (IEEE80211_DATA_LEN + IEEE80211_HLEN)
140 
141 struct il3945_frame {
142 	union {
143 		struct ieee80211_hdr frame;
144 		struct il3945_tx_beacon_cmd beacon;
145 		u8 raw[IEEE80211_FRAME_LEN];
146 		u8 cmd[360];
147 	} u;
148 	struct list_head list;
149 };
150 
151 #define SEQ_TO_SN(seq) (((seq) & IEEE80211_SCTL_SEQ) >> 4)
152 #define SN_TO_SEQ(ssn) (((ssn) << 4) & IEEE80211_SCTL_SEQ)
153 #define MAX_SN ((IEEE80211_SCTL_SEQ) >> 4)
154 
155 #define SUP_RATE_11A_MAX_NUM_CHANNELS  8
156 #define SUP_RATE_11B_MAX_NUM_CHANNELS  4
157 #define SUP_RATE_11G_MAX_NUM_CHANNELS  12
158 
159 #define IL_SUPPORTED_RATES_IE_LEN         8
160 
161 #define SCAN_INTERVAL 100
162 
163 #define MAX_TID_COUNT        9
164 
165 #define IL_INVALID_RATE     0xFF
166 #define IL_INVALID_VALUE    -1
167 
168 #define STA_PS_STATUS_WAKE             0
169 #define STA_PS_STATUS_SLEEP            1
170 
171 struct il3945_ibss_seq {
172 	u8 mac[ETH_ALEN];
173 	u16 seq_num;
174 	u16 frag_num;
175 	unsigned long packet_time;
176 	struct list_head list;
177 };
178 
179 #define IL_RX_HDR(x) ((struct il3945_rx_frame_hdr *)(\
180 		       x->u.rx_frame.stats.payload + \
181 		       x->u.rx_frame.stats.phy_count))
182 #define IL_RX_END(x) ((struct il3945_rx_frame_end *)(\
183 		       IL_RX_HDR(x)->payload + \
184 		       le16_to_cpu(IL_RX_HDR(x)->len)))
185 #define IL_RX_STATS(x) (&x->u.rx_frame.stats)
186 #define IL_RX_DATA(x) (IL_RX_HDR(x)->payload)
187 
188 /******************************************************************************
189  *
190  * Functions implemented in iwl3945-base.c which are forward declared here
191  * for use by iwl-*.c
192  *
193  *****************************************************************************/
194 extern int il3945_calc_db_from_ratio(int sig_ratio);
195 extern void il3945_rx_replenish(void *data);
196 extern void il3945_rx_queue_reset(struct il_priv *il, struct il_rx_queue *rxq);
197 extern unsigned int il3945_fill_beacon_frame(struct il_priv *il,
198 					     struct ieee80211_hdr *hdr,
199 					     int left);
200 extern int il3945_dump_nic_event_log(struct il_priv *il, bool full_log,
201 				     char **buf, bool display);
202 extern void il3945_dump_nic_error_log(struct il_priv *il);
203 
204 /******************************************************************************
205  *
206  * Functions implemented in iwl-[34]*.c which are forward declared here
207  * for use by iwl3945-base.c
208  *
209  * NOTE:  The implementation of these functions are hardware specific
210  * which is why they are in the hardware specific files (vs. iwl-base.c)
211  *
212  * Naming convention --
213  * il3945_         <-- Its part of iwlwifi (should be changed to il3945_)
214  * il3945_hw_      <-- Hardware specific (implemented in iwl-XXXX.c by all HW)
215  * iwlXXXX_     <-- Hardware specific (implemented in iwl-XXXX.c for XXXX)
216  * il3945_bg_      <-- Called from work queue context
217  * il3945_mac_     <-- mac80211 callback
218  *
219  ****************************************************************************/
220 extern void il3945_hw_handler_setup(struct il_priv *il);
221 extern void il3945_hw_setup_deferred_work(struct il_priv *il);
222 extern void il3945_hw_cancel_deferred_work(struct il_priv *il);
223 extern int il3945_hw_rxq_stop(struct il_priv *il);
224 extern int il3945_hw_set_hw_params(struct il_priv *il);
225 extern int il3945_hw_nic_init(struct il_priv *il);
226 extern int il3945_hw_nic_stop_master(struct il_priv *il);
227 extern void il3945_hw_txq_ctx_free(struct il_priv *il);
228 extern void il3945_hw_txq_ctx_stop(struct il_priv *il);
229 extern int il3945_hw_nic_reset(struct il_priv *il);
230 extern int il3945_hw_txq_attach_buf_to_tfd(struct il_priv *il,
231 					   struct il_tx_queue *txq,
232 					   dma_addr_t addr, u16 len, u8 reset,
233 					   u8 pad);
234 extern void il3945_hw_txq_free_tfd(struct il_priv *il, struct il_tx_queue *txq);
235 extern int il3945_hw_get_temperature(struct il_priv *il);
236 extern int il3945_hw_tx_queue_init(struct il_priv *il, struct il_tx_queue *txq);
237 extern unsigned int il3945_hw_get_beacon_cmd(struct il_priv *il,
238 					     struct il3945_frame *frame,
239 					     u8 rate);
240 void il3945_hw_build_tx_cmd_rate(struct il_priv *il, struct il_device_cmd *cmd,
241 				 struct ieee80211_tx_info *info,
242 				 struct ieee80211_hdr *hdr, int sta_id);
243 extern int il3945_hw_reg_send_txpower(struct il_priv *il);
244 extern int il3945_hw_reg_set_txpower(struct il_priv *il, s8 power);
245 extern void il3945_hdl_stats(struct il_priv *il, struct il_rx_buf *rxb);
246 void il3945_hdl_c_stats(struct il_priv *il, struct il_rx_buf *rxb);
247 extern void il3945_disable_events(struct il_priv *il);
248 extern int il4965_get_temperature(const struct il_priv *il);
249 extern void il3945_post_associate(struct il_priv *il);
250 extern void il3945_config_ap(struct il_priv *il);
251 
252 extern int il3945_commit_rxon(struct il_priv *il, struct il_rxon_context *ctx);
253 
254 /**
255  * il3945_hw_find_station - Find station id for a given BSSID
256  * @bssid: MAC address of station ID to find
257  *
258  * NOTE:  This should not be hardware specific but the code has
259  * not yet been merged into a single common layer for managing the
260  * station tables.
261  */
262 extern u8 il3945_hw_find_station(struct il_priv *il, const u8 * bssid);
263 
264 extern struct ieee80211_ops il3945_hw_ops;
265 
266 extern __le32 il3945_get_antenna_flags(const struct il_priv *il);
267 extern int il3945_init_hw_rate_table(struct il_priv *il);
268 extern void il3945_reg_txpower_periodic(struct il_priv *il);
269 extern int il3945_txpower_set_from_eeprom(struct il_priv *il);
270 
271 extern int il3945_rs_next_rate(struct il_priv *il, int rate);
272 
273 /* scanning */
274 int il3945_request_scan(struct il_priv *il, struct ieee80211_vif *vif);
275 void il3945_post_scan(struct il_priv *il);
276 
277 /* rates */
278 extern const struct il3945_rate_info il3945_rates[RATE_COUNT_3945];
279 
280 /* RSSI to dBm */
281 #define IL39_RSSI_OFFSET	95
282 
283 /*
284  * EEPROM related constants, enums, and structures.
285  */
286 #define EEPROM_SKU_CAP_OP_MODE_MRC                      (1 << 7)
287 
288 /*
289  * Mapping of a Tx power level, at factory calibration temperature,
290  *   to a radio/DSP gain table idx.
291  * One for each of 5 "sample" power levels in each band.
292  * v_det is measured at the factory, using the 3945's built-in power amplifier
293  *   (PA) output voltage detector.  This same detector is used during Tx of
294  *   long packets in normal operation to provide feedback as to proper output
295  *   level.
296  * Data copied from EEPROM.
297  * DO NOT ALTER THIS STRUCTURE!!!
298  */
299 struct il3945_eeprom_txpower_sample {
300 	u8 gain_idx;		/* idx into power (gain) setup table ... */
301 	s8 power;		/* ... for this pwr level for this chnl group */
302 	u16 v_det;		/* PA output voltage */
303 } __packed;
304 
305 /*
306  * Mappings of Tx power levels -> nominal radio/DSP gain table idxes.
307  * One for each channel group (a.k.a. "band") (1 for BG, 4 for A).
308  * Tx power setup code interpolates between the 5 "sample" power levels
309  *    to determine the nominal setup for a requested power level.
310  * Data copied from EEPROM.
311  * DO NOT ALTER THIS STRUCTURE!!!
312  */
313 struct il3945_eeprom_txpower_group {
314 	struct il3945_eeprom_txpower_sample samples[5];	/* 5 power levels */
315 	s32 a, b, c, d, e;	/* coefficients for voltage->power
316 				 * formula (signed) */
317 	s32 Fa, Fb, Fc, Fd, Fe;	/* these modify coeffs based on
318 				 * frequency (signed) */
319 	s8 saturation_power;	/* highest power possible by h/w in this
320 				 * band */
321 	u8 group_channel;	/* "representative" channel # in this band */
322 	s16 temperature;	/* h/w temperature at factory calib this band
323 				 * (signed) */
324 } __packed;
325 
326 /*
327  * Temperature-based Tx-power compensation data, not band-specific.
328  * These coefficients are use to modify a/b/c/d/e coeffs based on
329  *   difference between current temperature and factory calib temperature.
330  * Data copied from EEPROM.
331  */
332 struct il3945_eeprom_temperature_corr {
333 	u32 Ta;
334 	u32 Tb;
335 	u32 Tc;
336 	u32 Td;
337 	u32 Te;
338 } __packed;
339 
340 /*
341  * EEPROM map
342  */
343 struct il3945_eeprom {
344 	u8 reserved0[16];
345 	u16 device_id;		/* abs.ofs: 16 */
346 	u8 reserved1[2];
347 	u16 pmc;		/* abs.ofs: 20 */
348 	u8 reserved2[20];
349 	u8 mac_address[6];	/* abs.ofs: 42 */
350 	u8 reserved3[58];
351 	u16 board_revision;	/* abs.ofs: 106 */
352 	u8 reserved4[11];
353 	u8 board_pba_number[9];	/* abs.ofs: 119 */
354 	u8 reserved5[8];
355 	u16 version;		/* abs.ofs: 136 */
356 	u8 sku_cap;		/* abs.ofs: 138 */
357 	u8 leds_mode;		/* abs.ofs: 139 */
358 	u16 oem_mode;
359 	u16 wowlan_mode;	/* abs.ofs: 142 */
360 	u16 leds_time_interval;	/* abs.ofs: 144 */
361 	u8 leds_off_time;	/* abs.ofs: 146 */
362 	u8 leds_on_time;	/* abs.ofs: 147 */
363 	u8 almgor_m_version;	/* abs.ofs: 148 */
364 	u8 antenna_switch_type;	/* abs.ofs: 149 */
365 	u8 reserved6[42];
366 	u8 sku_id[4];		/* abs.ofs: 192 */
367 
368 /*
369  * Per-channel regulatory data.
370  *
371  * Each channel that *might* be supported by 3945 has a fixed location
372  * in EEPROM containing EEPROM_CHANNEL_* usage flags (LSB) and max regulatory
373  * txpower (MSB).
374  *
375  * Entries immediately below are for 20 MHz channel width.
376  *
377  * 2.4 GHz channels 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14
378  */
379 	u16 band_1_count;	/* abs.ofs: 196 */
380 	struct il_eeprom_channel band_1_channels[14];	/* abs.ofs: 198 */
381 
382 /*
383  * 4.9 GHz channels 183, 184, 185, 187, 188, 189, 192, 196,
384  * 5.0 GHz channels 7, 8, 11, 12, 16
385  * (4915-5080MHz) (none of these is ever supported)
386  */
387 	u16 band_2_count;	/* abs.ofs: 226 */
388 	struct il_eeprom_channel band_2_channels[13];	/* abs.ofs: 228 */
389 
390 /*
391  * 5.2 GHz channels 34, 36, 38, 40, 42, 44, 46, 48, 52, 56, 60, 64
392  * (5170-5320MHz)
393  */
394 	u16 band_3_count;	/* abs.ofs: 254 */
395 	struct il_eeprom_channel band_3_channels[12];	/* abs.ofs: 256 */
396 
397 /*
398  * 5.5 GHz channels 100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140
399  * (5500-5700MHz)
400  */
401 	u16 band_4_count;	/* abs.ofs: 280 */
402 	struct il_eeprom_channel band_4_channels[11];	/* abs.ofs: 282 */
403 
404 /*
405  * 5.7 GHz channels 145, 149, 153, 157, 161, 165
406  * (5725-5825MHz)
407  */
408 	u16 band_5_count;	/* abs.ofs: 304 */
409 	struct il_eeprom_channel band_5_channels[6];	/* abs.ofs: 306 */
410 
411 	u8 reserved9[194];
412 
413 /*
414  * 3945 Txpower calibration data.
415  */
416 #define IL_NUM_TX_CALIB_GROUPS 5
417 	struct il3945_eeprom_txpower_group groups[IL_NUM_TX_CALIB_GROUPS];
418 /* abs.ofs: 512 */
419 	struct il3945_eeprom_temperature_corr corrections;	/* abs.ofs: 832 */
420 	u8 reserved16[172];	/* fill out to full 1024 byte block */
421 } __packed;
422 
423 #define IL3945_EEPROM_IMG_SIZE 1024
424 
425 /* End of EEPROM */
426 
427 #define PCI_CFG_REV_ID_BIT_BASIC_SKU                (0x40)	/* bit 6    */
428 #define PCI_CFG_REV_ID_BIT_RTP                      (0x80)	/* bit 7    */
429 
430 /* 4 DATA + 1 CMD. There are 2 HCCA queues that are not used. */
431 #define IL39_NUM_QUEUES        5
432 #define IL39_CMD_QUEUE_NUM	4
433 
434 #define IL_DEFAULT_TX_RETRY  15
435 
436 /*********************************************/
437 
438 #define RFD_SIZE                              4
439 #define NUM_TFD_CHUNKS                        4
440 
441 #define TFD_CTL_COUNT_SET(n)       (n << 24)
442 #define TFD_CTL_COUNT_GET(ctl)     ((ctl >> 24) & 7)
443 #define TFD_CTL_PAD_SET(n)         (n << 28)
444 #define TFD_CTL_PAD_GET(ctl)       (ctl >> 28)
445 
446 /* Sizes and addresses for instruction and data memory (SRAM) in
447  * 3945's embedded processor.  Driver access is via HBUS_TARG_MEM_* regs. */
448 #define IL39_RTC_INST_LOWER_BOUND		(0x000000)
449 #define IL39_RTC_INST_UPPER_BOUND		(0x014000)
450 
451 #define IL39_RTC_DATA_LOWER_BOUND		(0x800000)
452 #define IL39_RTC_DATA_UPPER_BOUND		(0x808000)
453 
454 #define IL39_RTC_INST_SIZE (IL39_RTC_INST_UPPER_BOUND - \
455 				IL39_RTC_INST_LOWER_BOUND)
456 #define IL39_RTC_DATA_SIZE (IL39_RTC_DATA_UPPER_BOUND - \
457 				IL39_RTC_DATA_LOWER_BOUND)
458 
459 #define IL39_MAX_INST_SIZE IL39_RTC_INST_SIZE
460 #define IL39_MAX_DATA_SIZE IL39_RTC_DATA_SIZE
461 
462 /* Size of uCode instruction memory in bootstrap state machine */
463 #define IL39_MAX_BSM_SIZE IL39_RTC_INST_SIZE
464 
465 static inline int
il3945_hw_valid_rtc_data_addr(u32 addr)466 il3945_hw_valid_rtc_data_addr(u32 addr)
467 {
468 	return (addr >= IL39_RTC_DATA_LOWER_BOUND &&
469 		addr < IL39_RTC_DATA_UPPER_BOUND);
470 }
471 
472 /* Base physical address of il3945_shared is provided to FH39_TSSR_CBB_BASE
473  * and &il3945_shared.rx_read_ptr[0] is provided to FH39_RCSR_RPTR_ADDR(0) */
474 struct il3945_shared {
475 	__le32 tx_base_ptr[8];
476 } __packed;
477 
478 /************************************/
479 /* iwl3945 Flow Handler Definitions */
480 /************************************/
481 
482 /**
483  * This I/O area is directly read/writable by driver (e.g. Linux uses writel())
484  * Addresses are offsets from device's PCI hardware base address.
485  */
486 #define FH39_MEM_LOWER_BOUND                   (0x0800)
487 #define FH39_MEM_UPPER_BOUND                   (0x1000)
488 
489 #define FH39_CBCC_TBL		(FH39_MEM_LOWER_BOUND + 0x140)
490 #define FH39_TFDB_TBL		(FH39_MEM_LOWER_BOUND + 0x180)
491 #define FH39_RCSR_TBL		(FH39_MEM_LOWER_BOUND + 0x400)
492 #define FH39_RSSR_TBL		(FH39_MEM_LOWER_BOUND + 0x4c0)
493 #define FH39_TCSR_TBL		(FH39_MEM_LOWER_BOUND + 0x500)
494 #define FH39_TSSR_TBL		(FH39_MEM_LOWER_BOUND + 0x680)
495 
496 /* TFDB (Transmit Frame Buffer Descriptor) */
497 #define FH39_TFDB(_ch, buf)			(FH39_TFDB_TBL + \
498 						 ((_ch) * 2 + (buf)) * 0x28)
499 #define FH39_TFDB_CHNL_BUF_CTRL_REG(_ch)	(FH39_TFDB_TBL + 0x50 * (_ch))
500 
501 /* CBCC channel is [0,2] */
502 #define FH39_CBCC(_ch)		(FH39_CBCC_TBL + (_ch) * 0x8)
503 #define FH39_CBCC_CTRL(_ch)	(FH39_CBCC(_ch) + 0x00)
504 #define FH39_CBCC_BASE(_ch)	(FH39_CBCC(_ch) + 0x04)
505 
506 /* RCSR channel is [0,2] */
507 #define FH39_RCSR(_ch)			(FH39_RCSR_TBL + (_ch) * 0x40)
508 #define FH39_RCSR_CONFIG(_ch)		(FH39_RCSR(_ch) + 0x00)
509 #define FH39_RCSR_RBD_BASE(_ch)		(FH39_RCSR(_ch) + 0x04)
510 #define FH39_RCSR_WPTR(_ch)		(FH39_RCSR(_ch) + 0x20)
511 #define FH39_RCSR_RPTR_ADDR(_ch)	(FH39_RCSR(_ch) + 0x24)
512 
513 #define FH39_RSCSR_CHNL0_WPTR		(FH39_RCSR_WPTR(0))
514 
515 /* RSSR */
516 #define FH39_RSSR_CTRL			(FH39_RSSR_TBL + 0x000)
517 #define FH39_RSSR_STATUS		(FH39_RSSR_TBL + 0x004)
518 
519 /* TCSR */
520 #define FH39_TCSR(_ch)			(FH39_TCSR_TBL + (_ch) * 0x20)
521 #define FH39_TCSR_CONFIG(_ch)		(FH39_TCSR(_ch) + 0x00)
522 #define FH39_TCSR_CREDIT(_ch)		(FH39_TCSR(_ch) + 0x04)
523 #define FH39_TCSR_BUFF_STTS(_ch)	(FH39_TCSR(_ch) + 0x08)
524 
525 /* TSSR */
526 #define FH39_TSSR_CBB_BASE        (FH39_TSSR_TBL + 0x000)
527 #define FH39_TSSR_MSG_CONFIG      (FH39_TSSR_TBL + 0x008)
528 #define FH39_TSSR_TX_STATUS       (FH39_TSSR_TBL + 0x010)
529 
530 /* DBM */
531 
532 #define FH39_SRVC_CHNL                            (6)
533 
534 #define FH39_RCSR_RX_CONFIG_REG_POS_RBDC_SIZE     (20)
535 #define FH39_RCSR_RX_CONFIG_REG_POS_IRQ_RBTH      (4)
536 
537 #define FH39_RCSR_RX_CONFIG_REG_BIT_WR_STTS_EN    (0x08000000)
538 
539 #define FH39_RCSR_RX_CONFIG_REG_VAL_DMA_CHNL_EN_ENABLE        (0x80000000)
540 
541 #define FH39_RCSR_RX_CONFIG_REG_VAL_RDRBD_EN_ENABLE           (0x20000000)
542 
543 #define FH39_RCSR_RX_CONFIG_REG_VAL_MAX_FRAG_SIZE_128		(0x01000000)
544 
545 #define FH39_RCSR_RX_CONFIG_REG_VAL_IRQ_DEST_INT_HOST		(0x00001000)
546 
547 #define FH39_RCSR_RX_CONFIG_REG_VAL_MSG_MODE_FH			(0x00000000)
548 
549 #define FH39_TCSR_TX_CONFIG_REG_VAL_MSG_MODE_TXF		(0x00000000)
550 #define FH39_TCSR_TX_CONFIG_REG_VAL_MSG_MODE_DRIVER		(0x00000001)
551 
552 #define FH39_TCSR_TX_CONFIG_REG_VAL_DMA_CREDIT_DISABLE_VAL	(0x00000000)
553 #define FH39_TCSR_TX_CONFIG_REG_VAL_DMA_CREDIT_ENABLE_VAL	(0x00000008)
554 
555 #define FH39_TCSR_TX_CONFIG_REG_VAL_CIRQ_HOST_IFTFD		(0x00200000)
556 
557 #define FH39_TCSR_TX_CONFIG_REG_VAL_CIRQ_RTC_NOINT		(0x00000000)
558 
559 #define FH39_TCSR_TX_CONFIG_REG_VAL_DMA_CHNL_PAUSE		(0x00000000)
560 #define FH39_TCSR_TX_CONFIG_REG_VAL_DMA_CHNL_ENABLE		(0x80000000)
561 
562 #define FH39_TCSR_CHNL_TX_BUF_STS_REG_VAL_TFDB_VALID		(0x00004000)
563 
564 #define FH39_TCSR_CHNL_TX_BUF_STS_REG_BIT_TFDB_WPTR		(0x00000001)
565 
566 #define FH39_TSSR_TX_MSG_CONFIG_REG_VAL_SNOOP_RD_TXPD_ON	(0xFF000000)
567 #define FH39_TSSR_TX_MSG_CONFIG_REG_VAL_ORDER_RD_TXPD_ON	(0x00FF0000)
568 
569 #define FH39_TSSR_TX_MSG_CONFIG_REG_VAL_MAX_FRAG_SIZE_128B	(0x00000400)
570 
571 #define FH39_TSSR_TX_MSG_CONFIG_REG_VAL_SNOOP_RD_TFD_ON		(0x00000100)
572 #define FH39_TSSR_TX_MSG_CONFIG_REG_VAL_ORDER_RD_CBB_ON		(0x00000080)
573 
574 #define FH39_TSSR_TX_MSG_CONFIG_REG_VAL_ORDER_RSP_WAIT_TH	(0x00000020)
575 #define FH39_TSSR_TX_MSG_CONFIG_REG_VAL_RSP_WAIT_TH		(0x00000005)
576 
577 #define FH39_TSSR_TX_STATUS_REG_BIT_BUFS_EMPTY(_ch)	(BIT(_ch) << 24)
578 #define FH39_TSSR_TX_STATUS_REG_BIT_NO_PEND_REQ(_ch)	(BIT(_ch) << 16)
579 
580 #define FH39_TSSR_TX_STATUS_REG_MSK_CHNL_IDLE(_ch) \
581 	(FH39_TSSR_TX_STATUS_REG_BIT_BUFS_EMPTY(_ch) | \
582 	 FH39_TSSR_TX_STATUS_REG_BIT_NO_PEND_REQ(_ch))
583 
584 #define FH39_RSSR_CHNL0_RX_STATUS_CHNL_IDLE			(0x01000000)
585 
586 struct il3945_tfd_tb {
587 	__le32 addr;
588 	__le32 len;
589 } __packed;
590 
591 struct il3945_tfd {
592 	__le32 control_flags;
593 	struct il3945_tfd_tb tbs[4];
594 	u8 __pad[28];
595 } __packed;
596 
597 #ifdef CONFIG_IWLEGACY_DEBUGFS
598 ssize_t il3945_ucode_rx_stats_read(struct file *file, char __user *user_buf,
599 				   size_t count, loff_t *ppos);
600 ssize_t il3945_ucode_tx_stats_read(struct file *file, char __user *user_buf,
601 				   size_t count, loff_t *ppos);
602 ssize_t il3945_ucode_general_stats_read(struct file *file,
603 					char __user *user_buf, size_t count,
604 					loff_t *ppos);
605 #endif
606 
607 #endif
608