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/drivers/net/wireless/iwlwifi/iwl-csr.h

http://github.com/mirrors/linux
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  1/******************************************************************************
  2 *
  3 * This file is provided under a dual BSD/GPLv2 license.  When using or
  4 * redistributing this file, you may do so under either license.
  5 *
  6 * GPL LICENSE SUMMARY
  7 *
  8 * Copyright(c) 2005 - 2013 Intel Corporation. All rights reserved.
  9 *
 10 * This program is free software; you can redistribute it and/or modify
 11 * it under the terms of version 2 of the GNU General Public License as
 12 * published by the Free Software Foundation.
 13 *
 14 * This program is distributed in the hope that it will be useful, but
 15 * WITHOUT ANY WARRANTY; without even the implied warranty of
 16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 17 * General Public License for more details.
 18 *
 19 * You should have received a copy of the GNU General Public License
 20 * along with this program; if not, write to the Free Software
 21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
 22 * USA
 23 *
 24 * The full GNU General Public License is included in this distribution
 25 * in the file called COPYING.
 26 *
 27 * Contact Information:
 28 *  Intel Linux Wireless <ilw@linux.intel.com>
 29 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
 30 *
 31 * BSD LICENSE
 32 *
 33 * Copyright(c) 2005 - 2013 Intel Corporation. All rights reserved.
 34 * All rights reserved.
 35 *
 36 * Redistribution and use in source and binary forms, with or without
 37 * modification, are permitted provided that the following conditions
 38 * are met:
 39 *
 40 *  * Redistributions of source code must retain the above copyright
 41 *    notice, this list of conditions and the following disclaimer.
 42 *  * Redistributions in binary form must reproduce the above copyright
 43 *    notice, this list of conditions and the following disclaimer in
 44 *    the documentation and/or other materials provided with the
 45 *    distribution.
 46 *  * Neither the name Intel Corporation nor the names of its
 47 *    contributors may be used to endorse or promote products derived
 48 *    from this software without specific prior written permission.
 49 *
 50 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 51 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 52 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 53 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 54 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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 56 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 57 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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 59 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 60 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 61 *
 62 *****************************************************************************/
 63#ifndef __iwl_csr_h__
 64#define __iwl_csr_h__
 65/*
 66 * CSR (control and status registers)
 67 *
 68 * CSR registers are mapped directly into PCI bus space, and are accessible
 69 * whenever platform supplies power to device, even when device is in
 70 * low power states due to driver-invoked device resets
 71 * (e.g. CSR_RESET_REG_FLAG_SW_RESET) or uCode-driven power-saving modes.
 72 *
 73 * Use iwl_write32() and iwl_read32() family to access these registers;
 74 * these provide simple PCI bus access, without waking up the MAC.
 75 * Do not use iwl_write_direct32() family for these registers;
 76 * no need to "grab nic access" via CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ.
 77 * The MAC (uCode processor, etc.) does not need to be powered up for accessing
 78 * the CSR registers.
 79 *
 80 * NOTE:  Device does need to be awake in order to read this memory
 81 *        via CSR_EEPROM and CSR_OTP registers
 82 */
 83#define CSR_BASE    (0x000)
 84
 85#define CSR_HW_IF_CONFIG_REG    (CSR_BASE+0x000) /* hardware interface config */
 86#define CSR_INT_COALESCING      (CSR_BASE+0x004) /* accum ints, 32-usec units */
 87#define CSR_INT                 (CSR_BASE+0x008) /* host interrupt status/ack */
 88#define CSR_INT_MASK            (CSR_BASE+0x00c) /* host interrupt enable */
 89#define CSR_FH_INT_STATUS       (CSR_BASE+0x010) /* busmaster int status/ack*/
 90#define CSR_GPIO_IN             (CSR_BASE+0x018) /* read external chip pins */
 91#define CSR_RESET               (CSR_BASE+0x020) /* busmaster enable, NMI, etc*/
 92#define CSR_GP_CNTRL            (CSR_BASE+0x024)
 93
 94/* 2nd byte of CSR_INT_COALESCING, not accessible via iwl_write32()! */
 95#define CSR_INT_PERIODIC_REG	(CSR_BASE+0x005)
 96
 97/*
 98 * Hardware revision info
 99 * Bit fields:
100 * 31-16:  Reserved
101 *  15-4:  Type of device:  see CSR_HW_REV_TYPE_xxx definitions
102 *  3-2:  Revision step:  0 = A, 1 = B, 2 = C, 3 = D
103 *  1-0:  "Dash" (-) value, as in A-1, etc.
104 */
105#define CSR_HW_REV              (CSR_BASE+0x028)
106
107/*
108 * EEPROM and OTP (one-time-programmable) memory reads
109 *
110 * NOTE:  Device must be awake, initialized via apm_ops.init(),
111 *        in order to read.
112 */
113#define CSR_EEPROM_REG          (CSR_BASE+0x02c)
114#define CSR_EEPROM_GP           (CSR_BASE+0x030)
115#define CSR_OTP_GP_REG   	(CSR_BASE+0x034)
116
117#define CSR_GIO_REG		(CSR_BASE+0x03C)
118#define CSR_GP_UCODE_REG	(CSR_BASE+0x048)
119#define CSR_GP_DRIVER_REG	(CSR_BASE+0x050)
120
121/*
122 * UCODE-DRIVER GP (general purpose) mailbox registers.
123 * SET/CLR registers set/clear bit(s) if "1" is written.
124 */
125#define CSR_UCODE_DRV_GP1       (CSR_BASE+0x054)
126#define CSR_UCODE_DRV_GP1_SET   (CSR_BASE+0x058)
127#define CSR_UCODE_DRV_GP1_CLR   (CSR_BASE+0x05c)
128#define CSR_UCODE_DRV_GP2       (CSR_BASE+0x060)
129
130#define CSR_LED_REG             (CSR_BASE+0x094)
131#define CSR_DRAM_INT_TBL_REG	(CSR_BASE+0x0A0)
132#define CSR_MAC_SHADOW_REG_CTRL	(CSR_BASE+0x0A8) /* 6000 and up */
133
134
135/* GIO Chicken Bits (PCI Express bus link power management) */
136#define CSR_GIO_CHICKEN_BITS    (CSR_BASE+0x100)
137
138/* Analog phase-lock-loop configuration  */
139#define CSR_ANA_PLL_CFG         (CSR_BASE+0x20c)
140
141/*
142 * CSR Hardware Revision Workaround Register.  Indicates hardware rev;
143 * "step" determines CCK backoff for txpower calculation.  Used for 4965 only.
144 * See also CSR_HW_REV register.
145 * Bit fields:
146 *  3-2:  0 = A, 1 = B, 2 = C, 3 = D step
147 *  1-0:  "Dash" (-) value, as in C-1, etc.
148 */
149#define CSR_HW_REV_WA_REG		(CSR_BASE+0x22C)
150
151#define CSR_DBG_HPET_MEM_REG		(CSR_BASE+0x240)
152#define CSR_DBG_LINK_PWR_MGMT_REG	(CSR_BASE+0x250)
153
154/* Bits for CSR_HW_IF_CONFIG_REG */
155#define CSR_HW_IF_CONFIG_REG_MSK_MAC_DASH	(0x00000003)
156#define CSR_HW_IF_CONFIG_REG_MSK_MAC_STEP	(0x0000000C)
157#define CSR_HW_IF_CONFIG_REG_MSK_BOARD_VER	(0x000000C0)
158#define CSR_HW_IF_CONFIG_REG_BIT_MAC_SI		(0x00000100)
159#define CSR_HW_IF_CONFIG_REG_BIT_RADIO_SI	(0x00000200)
160#define CSR_HW_IF_CONFIG_REG_MSK_PHY_TYPE	(0x00000C00)
161#define CSR_HW_IF_CONFIG_REG_MSK_PHY_DASH	(0x00003000)
162#define CSR_HW_IF_CONFIG_REG_MSK_PHY_STEP	(0x0000C000)
163
164#define CSR_HW_IF_CONFIG_REG_POS_MAC_DASH	(0)
165#define CSR_HW_IF_CONFIG_REG_POS_MAC_STEP	(2)
166#define CSR_HW_IF_CONFIG_REG_POS_BOARD_VER	(6)
167#define CSR_HW_IF_CONFIG_REG_POS_PHY_TYPE	(10)
168#define CSR_HW_IF_CONFIG_REG_POS_PHY_DASH	(12)
169#define CSR_HW_IF_CONFIG_REG_POS_PHY_STEP	(14)
170
171#define CSR_HW_IF_CONFIG_REG_BIT_HAP_WAKE_L1A	(0x00080000)
172#define CSR_HW_IF_CONFIG_REG_BIT_EEPROM_OWN_SEM	(0x00200000)
173#define CSR_HW_IF_CONFIG_REG_BIT_NIC_READY	(0x00400000) /* PCI_OWN_SEM */
174#define CSR_HW_IF_CONFIG_REG_BIT_NIC_PREPARE_DONE (0x02000000) /* ME_OWN */
175#define CSR_HW_IF_CONFIG_REG_PREPARE		  (0x08000000) /* WAKE_ME */
176
177#define CSR_INT_PERIODIC_DIS			(0x00) /* disable periodic int*/
178#define CSR_INT_PERIODIC_ENA			(0xFF) /* 255*32 usec ~ 8 msec*/
179
180/* interrupt flags in INTA, set by uCode or hardware (e.g. dma),
181 * acknowledged (reset) by host writing "1" to flagged bits. */
182#define CSR_INT_BIT_FH_RX        (1 << 31) /* Rx DMA, cmd responses, FH_INT[17:16] */
183#define CSR_INT_BIT_HW_ERR       (1 << 29) /* DMA hardware error FH_INT[31] */
184#define CSR_INT_BIT_RX_PERIODIC	 (1 << 28) /* Rx periodic */
185#define CSR_INT_BIT_FH_TX        (1 << 27) /* Tx DMA FH_INT[1:0] */
186#define CSR_INT_BIT_SCD          (1 << 26) /* TXQ pointer advanced */
187#define CSR_INT_BIT_SW_ERR       (1 << 25) /* uCode error */
188#define CSR_INT_BIT_RF_KILL      (1 << 7)  /* HW RFKILL switch GP_CNTRL[27] toggled */
189#define CSR_INT_BIT_CT_KILL      (1 << 6)  /* Critical temp (chip too hot) rfkill */
190#define CSR_INT_BIT_SW_RX        (1 << 3)  /* Rx, command responses */
191#define CSR_INT_BIT_WAKEUP       (1 << 1)  /* NIC controller waking up (pwr mgmt) */
192#define CSR_INT_BIT_ALIVE        (1 << 0)  /* uCode interrupts once it initializes */
193
194#define CSR_INI_SET_MASK	(CSR_INT_BIT_FH_RX   | \
195				 CSR_INT_BIT_HW_ERR  | \
196				 CSR_INT_BIT_FH_TX   | \
197				 CSR_INT_BIT_SW_ERR  | \
198				 CSR_INT_BIT_RF_KILL | \
199				 CSR_INT_BIT_SW_RX   | \
200				 CSR_INT_BIT_WAKEUP  | \
201				 CSR_INT_BIT_ALIVE)
202
203/* interrupt flags in FH (flow handler) (PCI busmaster DMA) */
204#define CSR_FH_INT_BIT_ERR       (1 << 31) /* Error */
205#define CSR_FH_INT_BIT_HI_PRIOR  (1 << 30) /* High priority Rx, bypass coalescing */
206#define CSR_FH_INT_BIT_RX_CHNL1  (1 << 17) /* Rx channel 1 */
207#define CSR_FH_INT_BIT_RX_CHNL0  (1 << 16) /* Rx channel 0 */
208#define CSR_FH_INT_BIT_TX_CHNL1  (1 << 1)  /* Tx channel 1 */
209#define CSR_FH_INT_BIT_TX_CHNL0  (1 << 0)  /* Tx channel 0 */
210
211#define CSR_FH_INT_RX_MASK	(CSR_FH_INT_BIT_HI_PRIOR | \
212				CSR_FH_INT_BIT_RX_CHNL1 | \
213				CSR_FH_INT_BIT_RX_CHNL0)
214
215#define CSR_FH_INT_TX_MASK	(CSR_FH_INT_BIT_TX_CHNL1 | \
216				CSR_FH_INT_BIT_TX_CHNL0)
217
218/* GPIO */
219#define CSR_GPIO_IN_BIT_AUX_POWER                   (0x00000200)
220#define CSR_GPIO_IN_VAL_VAUX_PWR_SRC                (0x00000000)
221#define CSR_GPIO_IN_VAL_VMAIN_PWR_SRC               (0x00000200)
222
223/* RESET */
224#define CSR_RESET_REG_FLAG_NEVO_RESET                (0x00000001)
225#define CSR_RESET_REG_FLAG_FORCE_NMI                 (0x00000002)
226#define CSR_RESET_REG_FLAG_SW_RESET                  (0x00000080)
227#define CSR_RESET_REG_FLAG_MASTER_DISABLED           (0x00000100)
228#define CSR_RESET_REG_FLAG_STOP_MASTER               (0x00000200)
229#define CSR_RESET_LINK_PWR_MGMT_DISABLED             (0x80000000)
230
231/*
232 * GP (general purpose) CONTROL REGISTER
233 * Bit fields:
234 *    27:  HW_RF_KILL_SW
235 *         Indicates state of (platform's) hardware RF-Kill switch
236 * 26-24:  POWER_SAVE_TYPE
237 *         Indicates current power-saving mode:
238 *         000 -- No power saving
239 *         001 -- MAC power-down
240 *         010 -- PHY (radio) power-down
241 *         011 -- Error
242 *   9-6:  SYS_CONFIG
243 *         Indicates current system configuration, reflecting pins on chip
244 *         as forced high/low by device circuit board.
245 *     4:  GOING_TO_SLEEP
246 *         Indicates MAC is entering a power-saving sleep power-down.
247 *         Not a good time to access device-internal resources.
248 *     3:  MAC_ACCESS_REQ
249 *         Host sets this to request and maintain MAC wakeup, to allow host
250 *         access to device-internal resources.  Host must wait for
251 *         MAC_CLOCK_READY (and !GOING_TO_SLEEP) before accessing non-CSR
252 *         device registers.
253 *     2:  INIT_DONE
254 *         Host sets this to put device into fully operational D0 power mode.
255 *         Host resets this after SW_RESET to put device into low power mode.
256 *     0:  MAC_CLOCK_READY
257 *         Indicates MAC (ucode processor, etc.) is powered up and can run.
258 *         Internal resources are accessible.
259 *         NOTE:  This does not indicate that the processor is actually running.
260 *         NOTE:  This does not indicate that device has completed
261 *                init or post-power-down restore of internal SRAM memory.
262 *                Use CSR_UCODE_DRV_GP1_BIT_MAC_SLEEP as indication that
263 *                SRAM is restored and uCode is in normal operation mode.
264 *                Later devices (5xxx/6xxx/1xxx) use non-volatile SRAM, and
265 *                do not need to save/restore it.
266 *         NOTE:  After device reset, this bit remains "0" until host sets
267 *                INIT_DONE
268 */
269#define CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY        (0x00000001)
270#define CSR_GP_CNTRL_REG_FLAG_INIT_DONE              (0x00000004)
271#define CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ         (0x00000008)
272#define CSR_GP_CNTRL_REG_FLAG_GOING_TO_SLEEP         (0x00000010)
273
274#define CSR_GP_CNTRL_REG_VAL_MAC_ACCESS_EN           (0x00000001)
275
276#define CSR_GP_CNTRL_REG_MSK_POWER_SAVE_TYPE         (0x07000000)
277#define CSR_GP_CNTRL_REG_FLAG_MAC_POWER_SAVE         (0x04000000)
278#define CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW          (0x08000000)
279
280
281/* HW REV */
282#define CSR_HW_REV_DASH(_val)          (((_val) & 0x0000003) >> 0)
283#define CSR_HW_REV_STEP(_val)          (((_val) & 0x000000C) >> 2)
284
285#define CSR_HW_REV_TYPE_MSK            (0x000FFF0)
286#define CSR_HW_REV_TYPE_5300           (0x0000020)
287#define CSR_HW_REV_TYPE_5350           (0x0000030)
288#define CSR_HW_REV_TYPE_5100           (0x0000050)
289#define CSR_HW_REV_TYPE_5150           (0x0000040)
290#define CSR_HW_REV_TYPE_1000           (0x0000060)
291#define CSR_HW_REV_TYPE_6x00           (0x0000070)
292#define CSR_HW_REV_TYPE_6x50           (0x0000080)
293#define CSR_HW_REV_TYPE_6150           (0x0000084)
294#define CSR_HW_REV_TYPE_6x05	       (0x00000B0)
295#define CSR_HW_REV_TYPE_6x30	       CSR_HW_REV_TYPE_6x05
296#define CSR_HW_REV_TYPE_6x35	       CSR_HW_REV_TYPE_6x05
297#define CSR_HW_REV_TYPE_2x30	       (0x00000C0)
298#define CSR_HW_REV_TYPE_2x00	       (0x0000100)
299#define CSR_HW_REV_TYPE_105	       (0x0000110)
300#define CSR_HW_REV_TYPE_135	       (0x0000120)
301#define CSR_HW_REV_TYPE_NONE           (0x00001F0)
302
303/* EEPROM REG */
304#define CSR_EEPROM_REG_READ_VALID_MSK	(0x00000001)
305#define CSR_EEPROM_REG_BIT_CMD		(0x00000002)
306#define CSR_EEPROM_REG_MSK_ADDR		(0x0000FFFC)
307#define CSR_EEPROM_REG_MSK_DATA		(0xFFFF0000)
308
309/* EEPROM GP */
310#define CSR_EEPROM_GP_VALID_MSK		(0x00000007) /* signature */
311#define CSR_EEPROM_GP_IF_OWNER_MSK	(0x00000180)
312#define CSR_EEPROM_GP_BAD_SIGNATURE_BOTH_EEP_AND_OTP	(0x00000000)
313#define CSR_EEPROM_GP_BAD_SIG_EEP_GOOD_SIG_OTP		(0x00000001)
314#define CSR_EEPROM_GP_GOOD_SIG_EEP_LESS_THAN_4K		(0x00000002)
315#define CSR_EEPROM_GP_GOOD_SIG_EEP_MORE_THAN_4K		(0x00000004)
316
317/* One-time-programmable memory general purpose reg */
318#define CSR_OTP_GP_REG_DEVICE_SELECT	(0x00010000) /* 0 - EEPROM, 1 - OTP */
319#define CSR_OTP_GP_REG_OTP_ACCESS_MODE	(0x00020000) /* 0 - absolute, 1 - relative */
320#define CSR_OTP_GP_REG_ECC_CORR_STATUS_MSK          (0x00100000) /* bit 20 */
321#define CSR_OTP_GP_REG_ECC_UNCORR_STATUS_MSK        (0x00200000) /* bit 21 */
322
323/* GP REG */
324#define CSR_GP_REG_POWER_SAVE_STATUS_MSK            (0x03000000) /* bit 24/25 */
325#define CSR_GP_REG_NO_POWER_SAVE            (0x00000000)
326#define CSR_GP_REG_MAC_POWER_SAVE           (0x01000000)
327#define CSR_GP_REG_PHY_POWER_SAVE           (0x02000000)
328#define CSR_GP_REG_POWER_SAVE_ERROR         (0x03000000)
329
330
331/* CSR GIO */
332#define CSR_GIO_REG_VAL_L0S_ENABLED	(0x00000002)
333
334/*
335 * UCODE-DRIVER GP (general purpose) mailbox register 1
336 * Host driver and uCode write and/or read this register to communicate with
337 * each other.
338 * Bit fields:
339 *     4:  UCODE_DISABLE
340 *         Host sets this to request permanent halt of uCode, same as
341 *         sending CARD_STATE command with "halt" bit set.
342 *     3:  CT_KILL_EXIT
343 *         Host sets this to request exit from CT_KILL state, i.e. host thinks
344 *         device temperature is low enough to continue normal operation.
345 *     2:  CMD_BLOCKED
346 *         Host sets this during RF KILL power-down sequence (HW, SW, CT KILL)
347 *         to release uCode to clear all Tx and command queues, enter
348 *         unassociated mode, and power down.
349 *         NOTE:  Some devices also use HBUS_TARG_MBX_C register for this bit.
350 *     1:  SW_BIT_RFKILL
351 *         Host sets this when issuing CARD_STATE command to request
352 *         device sleep.
353 *     0:  MAC_SLEEP
354 *         uCode sets this when preparing a power-saving power-down.
355 *         uCode resets this when power-up is complete and SRAM is sane.
356 *         NOTE:  device saves internal SRAM data to host when powering down,
357 *                and must restore this data after powering back up.
358 *                MAC_SLEEP is the best indication that restore is complete.
359 *                Later devices (5xxx/6xxx/1xxx) use non-volatile SRAM, and
360 *                do not need to save/restore it.
361 */
362#define CSR_UCODE_DRV_GP1_BIT_MAC_SLEEP             (0x00000001)
363#define CSR_UCODE_SW_BIT_RFKILL                     (0x00000002)
364#define CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED           (0x00000004)
365#define CSR_UCODE_DRV_GP1_REG_BIT_CT_KILL_EXIT      (0x00000008)
366#define CSR_UCODE_DRV_GP1_BIT_D3_CFG_COMPLETE       (0x00000020)
367
368/* GP Driver */
369#define CSR_GP_DRIVER_REG_BIT_RADIO_SKU_MSK	    (0x00000003)
370#define CSR_GP_DRIVER_REG_BIT_RADIO_SKU_3x3_HYB	    (0x00000000)
371#define CSR_GP_DRIVER_REG_BIT_RADIO_SKU_2x2_HYB	    (0x00000001)
372#define CSR_GP_DRIVER_REG_BIT_RADIO_SKU_2x2_IPA	    (0x00000002)
373#define CSR_GP_DRIVER_REG_BIT_CALIB_VERSION6	    (0x00000004)
374#define CSR_GP_DRIVER_REG_BIT_6050_1x2		    (0x00000008)
375
376#define CSR_GP_DRIVER_REG_BIT_RADIO_IQ_INVER	    (0x00000080)
377
378/* GIO Chicken Bits (PCI Express bus link power management) */
379#define CSR_GIO_CHICKEN_BITS_REG_BIT_L1A_NO_L0S_RX  (0x00800000)
380#define CSR_GIO_CHICKEN_BITS_REG_BIT_DIS_L0S_EXIT_TIMER  (0x20000000)
381
382/* LED */
383#define CSR_LED_BSM_CTRL_MSK (0xFFFFFFDF)
384#define CSR_LED_REG_TURN_ON (0x60)
385#define CSR_LED_REG_TURN_OFF (0x20)
386
387/* ANA_PLL */
388#define CSR50_ANA_PLL_CFG_VAL        (0x00880300)
389
390/* HPET MEM debug */
391#define CSR_DBG_HPET_MEM_REG_VAL	(0xFFFF0000)
392
393/* DRAM INT TABLE */
394#define CSR_DRAM_INT_TBL_ENABLE		(1 << 31)
395#define CSR_DRAM_INIT_TBL_WRAP_CHECK	(1 << 27)
396
397/*
398 * HBUS (Host-side Bus)
399 *
400 * HBUS registers are mapped directly into PCI bus space, but are used
401 * to indirectly access device's internal memory or registers that
402 * may be powered-down.
403 *
404 * Use iwl_write_direct32()/iwl_read_direct32() family for these registers;
405 * host must "grab nic access" via CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ
406 * to make sure the MAC (uCode processor, etc.) is powered up for accessing
407 * internal resources.
408 *
409 * Do not use iwl_write32()/iwl_read32() family to access these registers;
410 * these provide only simple PCI bus access, without waking up the MAC.
411 */
412#define HBUS_BASE	(0x400)
413
414/*
415 * Registers for accessing device's internal SRAM memory (e.g. SCD SRAM
416 * structures, error log, event log, verifying uCode load).
417 * First write to address register, then read from or write to data register
418 * to complete the job.  Once the address register is set up, accesses to
419 * data registers auto-increment the address by one dword.
420 * Bit usage for address registers (read or write):
421 *  0-31:  memory address within device
422 */
423#define HBUS_TARG_MEM_RADDR     (HBUS_BASE+0x00c)
424#define HBUS_TARG_MEM_WADDR     (HBUS_BASE+0x010)
425#define HBUS_TARG_MEM_WDAT      (HBUS_BASE+0x018)
426#define HBUS_TARG_MEM_RDAT      (HBUS_BASE+0x01c)
427
428/* Mailbox C, used as workaround alternative to CSR_UCODE_DRV_GP1 mailbox */
429#define HBUS_TARG_MBX_C         (HBUS_BASE+0x030)
430#define HBUS_TARG_MBX_C_REG_BIT_CMD_BLOCKED         (0x00000004)
431
432/*
433 * Registers for accessing device's internal peripheral registers
434 * (e.g. SCD, BSM, etc.).  First write to address register,
435 * then read from or write to data register to complete the job.
436 * Bit usage for address registers (read or write):
437 *  0-15:  register address (offset) within device
438 * 24-25:  (# bytes - 1) to read or write (e.g. 3 for dword)
439 */
440#define HBUS_TARG_PRPH_WADDR    (HBUS_BASE+0x044)
441#define HBUS_TARG_PRPH_RADDR    (HBUS_BASE+0x048)
442#define HBUS_TARG_PRPH_WDAT     (HBUS_BASE+0x04c)
443#define HBUS_TARG_PRPH_RDAT     (HBUS_BASE+0x050)
444
445/* Used to enable DBGM */
446#define HBUS_TARG_TEST_REG	(HBUS_BASE+0x05c)
447
448/*
449 * Per-Tx-queue write pointer (index, really!)
450 * Indicates index to next TFD that driver will fill (1 past latest filled).
451 * Bit usage:
452 *  0-7:  queue write index
453 * 11-8:  queue selector
454 */
455#define HBUS_TARG_WRPTR         (HBUS_BASE+0x060)
456
457/**********************************************************
458 * CSR values
459 **********************************************************/
460 /*
461 * host interrupt timeout value
462 * used with setting interrupt coalescing timer
463 * the CSR_INT_COALESCING is an 8 bit register in 32-usec unit
464 *
465 * default interrupt coalescing timer is 64 x 32 = 2048 usecs
466 * default interrupt coalescing calibration timer is 16 x 32 = 512 usecs
467 */
468#define IWL_HOST_INT_TIMEOUT_MAX	(0xFF)
469#define IWL_HOST_INT_TIMEOUT_DEF	(0x40)
470#define IWL_HOST_INT_TIMEOUT_MIN	(0x0)
471#define IWL_HOST_INT_CALIB_TIMEOUT_MAX	(0xFF)
472#define IWL_HOST_INT_CALIB_TIMEOUT_DEF	(0x10)
473#define IWL_HOST_INT_CALIB_TIMEOUT_MIN	(0x0)
474
475/*****************************************************************************
476 *                        7000/3000 series SHR DTS addresses                 *
477 *****************************************************************************/
478
479/* Diode Results Register Structure: */
480enum dtd_diode_reg {
481	DTS_DIODE_REG_DIG_VAL			= 0x000000FF, /* bits [7:0] */
482	DTS_DIODE_REG_VREF_LOW			= 0x0000FF00, /* bits [15:8] */
483	DTS_DIODE_REG_VREF_HIGH			= 0x00FF0000, /* bits [23:16] */
484	DTS_DIODE_REG_VREF_ID			= 0x03000000, /* bits [25:24] */
485	DTS_DIODE_REG_PASS_ONCE			= 0x80000000, /* bits [31:31] */
486	DTS_DIODE_REG_FLAGS_MSK			= 0xFF000000, /* bits [31:24] */
487/* Those are the masks INSIDE the flags bit-field: */
488	DTS_DIODE_REG_FLAGS_VREFS_ID_POS	= 0,
489	DTS_DIODE_REG_FLAGS_VREFS_ID		= 0x00000003, /* bits [1:0] */
490	DTS_DIODE_REG_FLAGS_PASS_ONCE_POS	= 7,
491	DTS_DIODE_REG_FLAGS_PASS_ONCE		= 0x00000080, /* bits [7:7] */
492};
493
494#endif /* !__iwl_csr_h__ */