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 - 2011 Intel Corporation. All rights reserved. |
9 | * |
10 | * This program is free software; you can redistribute it and/or modify |
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14 | * This program is distributed in the hope that it will be useful, but |
15 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
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17 | * General Public License for more details. |
18 | * |
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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 |
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24 | * The full GNU General Public License is included in this distribution |
25 | * in the file called LICENSE.GPL. |
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31 | * BSD LICENSE |
32 | * |
33 | * Copyright(c) 2005 - 2011 Intel Corporation. All rights reserved. |
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49 | * |
50 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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60 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
61 | * |
62 | *****************************************************************************/ |
63 | #ifndef __il_csr_h__ |
64 | #define __il_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 _il_wr() and _il_rd() family to access these registers; |
74 | * these provide simple PCI bus access, without waking up the MAC. |
75 | * Do not use il_wr() 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 register |
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 _il_wr()! */ |
95 | #define CSR_INT_PERIODIC_REG (CSR_BASE+0x005) |
96 | |
97 | /* |
98 | * Hardware revision info |
99 | * Bit fields: |
100 | * 31-8: Reserved |
101 | * 7-4: 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 | * NOTE: Revision step affects calculation of CCK txpower for 4965. |
106 | * NOTE: See also CSR_HW_REV_WA_REG (work-around for bug in 4965). |
107 | */ |
108 | #define CSR_HW_REV (CSR_BASE+0x028) |
109 | |
110 | /* |
111 | * EEPROM memory reads |
112 | * |
113 | * NOTE: Device must be awake, initialized via apm_ops.init(), |
114 | * in order to read. |
115 | */ |
116 | #define CSR_EEPROM_REG (CSR_BASE+0x02c) |
117 | #define CSR_EEPROM_GP (CSR_BASE+0x030) |
118 | |
119 | #define CSR_GIO_REG (CSR_BASE+0x03C) |
120 | #define CSR_GP_UCODE_REG (CSR_BASE+0x048) |
121 | #define CSR_GP_DRIVER_REG (CSR_BASE+0x050) |
122 | |
123 | /* |
124 | * UCODE-DRIVER GP (general purpose) mailbox registers. |
125 | * SET/CLR registers set/clear bit(s) if "1" is written. |
126 | */ |
127 | #define CSR_UCODE_DRV_GP1 (CSR_BASE+0x054) |
128 | #define CSR_UCODE_DRV_GP1_SET (CSR_BASE+0x058) |
129 | #define CSR_UCODE_DRV_GP1_CLR (CSR_BASE+0x05c) |
130 | #define CSR_UCODE_DRV_GP2 (CSR_BASE+0x060) |
131 | |
132 | #define CSR_LED_REG (CSR_BASE+0x094) |
133 | #define CSR_DRAM_INT_TBL_REG (CSR_BASE+0x0A0) |
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 CSR49_HW_IF_CONFIG_REG_BIT_4965_R (0x00000010) |
156 | #define CSR_HW_IF_CONFIG_REG_MSK_BOARD_VER (0x00000C00) |
157 | #define CSR_HW_IF_CONFIG_REG_BIT_MAC_SI (0x00000100) |
158 | #define CSR_HW_IF_CONFIG_REG_BIT_RADIO_SI (0x00000200) |
159 | |
160 | #define CSR39_HW_IF_CONFIG_REG_BIT_3945_MB (0x00000100) |
161 | #define CSR39_HW_IF_CONFIG_REG_BIT_3945_MM (0x00000200) |
162 | #define CSR39_HW_IF_CONFIG_REG_BIT_SKU_MRC (0x00000400) |
163 | #define CSR39_HW_IF_CONFIG_REG_BIT_BOARD_TYPE (0x00000800) |
164 | #define CSR39_HW_IF_CONFIG_REG_BITS_SILICON_TYPE_A (0x00000000) |
165 | #define CSR39_HW_IF_CONFIG_REG_BITS_SILICON_TYPE_B (0x00001000) |
166 | |
167 | #define CSR_HW_IF_CONFIG_REG_BIT_HAP_WAKE_L1A (0x00080000) |
168 | #define CSR_HW_IF_CONFIG_REG_BIT_EEPROM_OWN_SEM (0x00200000) |
169 | #define CSR_HW_IF_CONFIG_REG_BIT_NIC_READY (0x00400000) /* PCI_OWN_SEM */ |
170 | #define CSR_HW_IF_CONFIG_REG_BIT_NIC_PREPARE_DONE (0x02000000) /* ME_OWN */ |
171 | #define CSR_HW_IF_CONFIG_REG_PREPARE (0x08000000) /* WAKE_ME */ |
172 | |
173 | #define CSR_INT_PERIODIC_DIS (0x00) /* disable periodic int */ |
174 | #define CSR_INT_PERIODIC_ENA (0xFF) /* 255*32 usec ~ 8 msec */ |
175 | |
176 | /* interrupt flags in INTA, set by uCode or hardware (e.g. dma), |
177 | * acknowledged (reset) by host writing "1" to flagged bits. */ |
178 | #define CSR_INT_BIT_FH_RX (1 << 31) /* Rx DMA, cmd responses, FH_INT[17:16] */ |
179 | #define CSR_INT_BIT_HW_ERR (1 << 29) /* DMA hardware error FH_INT[31] */ |
180 | #define CSR_INT_BIT_RX_PERIODIC (1 << 28) /* Rx periodic */ |
181 | #define CSR_INT_BIT_FH_TX (1 << 27) /* Tx DMA FH_INT[1:0] */ |
182 | #define CSR_INT_BIT_SCD (1 << 26) /* TXQ pointer advanced */ |
183 | #define CSR_INT_BIT_SW_ERR (1 << 25) /* uCode error */ |
184 | #define CSR_INT_BIT_RF_KILL (1 << 7) /* HW RFKILL switch GP_CNTRL[27] toggled */ |
185 | #define CSR_INT_BIT_CT_KILL (1 << 6) /* Critical temp (chip too hot) rfkill */ |
186 | #define CSR_INT_BIT_SW_RX (1 << 3) /* Rx, command responses, 3945 */ |
187 | #define CSR_INT_BIT_WAKEUP (1 << 1) /* NIC controller waking up (pwr mgmt) */ |
188 | #define CSR_INT_BIT_ALIVE (1 << 0) /* uCode interrupts once it initializes */ |
189 | |
190 | #define CSR_INI_SET_MASK (CSR_INT_BIT_FH_RX | \ |
191 | CSR_INT_BIT_HW_ERR | \ |
192 | CSR_INT_BIT_FH_TX | \ |
193 | CSR_INT_BIT_SW_ERR | \ |
194 | CSR_INT_BIT_RF_KILL | \ |
195 | CSR_INT_BIT_SW_RX | \ |
196 | CSR_INT_BIT_WAKEUP | \ |
197 | CSR_INT_BIT_ALIVE) |
198 | |
199 | /* interrupt flags in FH (flow handler) (PCI busmaster DMA) */ |
200 | #define CSR_FH_INT_BIT_ERR (1 << 31) /* Error */ |
201 | #define CSR_FH_INT_BIT_HI_PRIOR (1 << 30) /* High priority Rx, bypass coalescing */ |
202 | #define CSR39_FH_INT_BIT_RX_CHNL2 (1 << 18) /* Rx channel 2 (3945 only) */ |
203 | #define CSR_FH_INT_BIT_RX_CHNL1 (1 << 17) /* Rx channel 1 */ |
204 | #define CSR_FH_INT_BIT_RX_CHNL0 (1 << 16) /* Rx channel 0 */ |
205 | #define CSR39_FH_INT_BIT_TX_CHNL6 (1 << 6) /* Tx channel 6 (3945 only) */ |
206 | #define CSR_FH_INT_BIT_TX_CHNL1 (1 << 1) /* Tx channel 1 */ |
207 | #define CSR_FH_INT_BIT_TX_CHNL0 (1 << 0) /* Tx channel 0 */ |
208 | |
209 | #define CSR39_FH_INT_RX_MASK (CSR_FH_INT_BIT_HI_PRIOR | \ |
210 | CSR39_FH_INT_BIT_RX_CHNL2 | \ |
211 | CSR_FH_INT_BIT_RX_CHNL1 | \ |
212 | CSR_FH_INT_BIT_RX_CHNL0) |
213 | |
214 | #define CSR39_FH_INT_TX_MASK (CSR39_FH_INT_BIT_TX_CHNL6 | \ |
215 | CSR_FH_INT_BIT_TX_CHNL1 | \ |
216 | CSR_FH_INT_BIT_TX_CHNL0) |
217 | |
218 | #define CSR49_FH_INT_RX_MASK (CSR_FH_INT_BIT_HI_PRIOR | \ |
219 | CSR_FH_INT_BIT_RX_CHNL1 | \ |
220 | CSR_FH_INT_BIT_RX_CHNL0) |
221 | |
222 | #define CSR49_FH_INT_TX_MASK (CSR_FH_INT_BIT_TX_CHNL1 | \ |
223 | CSR_FH_INT_BIT_TX_CHNL0) |
224 | |
225 | /* GPIO */ |
226 | #define CSR_GPIO_IN_BIT_AUX_POWER (0x00000200) |
227 | #define CSR_GPIO_IN_VAL_VAUX_PWR_SRC (0x00000000) |
228 | #define CSR_GPIO_IN_VAL_VMAIN_PWR_SRC (0x00000200) |
229 | |
230 | /* RESET */ |
231 | #define CSR_RESET_REG_FLAG_NEVO_RESET (0x00000001) |
232 | #define CSR_RESET_REG_FLAG_FORCE_NMI (0x00000002) |
233 | #define CSR_RESET_REG_FLAG_SW_RESET (0x00000080) |
234 | #define CSR_RESET_REG_FLAG_MASTER_DISABLED (0x00000100) |
235 | #define CSR_RESET_REG_FLAG_STOP_MASTER (0x00000200) |
236 | #define CSR_RESET_LINK_PWR_MGMT_DISABLED (0x80000000) |
237 | |
238 | /* |
239 | * GP (general purpose) CONTROL REGISTER |
240 | * Bit fields: |
241 | * 27: HW_RF_KILL_SW |
242 | * Indicates state of (platform's) hardware RF-Kill switch |
243 | * 26-24: POWER_SAVE_TYPE |
244 | * Indicates current power-saving mode: |
245 | * 000 -- No power saving |
246 | * 001 -- MAC power-down |
247 | * 010 -- PHY (radio) power-down |
248 | * 011 -- Error |
249 | * 9-6: SYS_CONFIG |
250 | * Indicates current system configuration, reflecting pins on chip |
251 | * as forced high/low by device circuit board. |
252 | * 4: GOING_TO_SLEEP |
253 | * Indicates MAC is entering a power-saving sleep power-down. |
254 | * Not a good time to access device-internal resources. |
255 | * 3: MAC_ACCESS_REQ |
256 | * Host sets this to request and maintain MAC wakeup, to allow host |
257 | * access to device-internal resources. Host must wait for |
258 | * MAC_CLOCK_READY (and !GOING_TO_SLEEP) before accessing non-CSR |
259 | * device registers. |
260 | * 2: INIT_DONE |
261 | * Host sets this to put device into fully operational D0 power mode. |
262 | * Host resets this after SW_RESET to put device into low power mode. |
263 | * 0: MAC_CLOCK_READY |
264 | * Indicates MAC (ucode processor, etc.) is powered up and can run. |
265 | * Internal resources are accessible. |
266 | * NOTE: This does not indicate that the processor is actually running. |
267 | * NOTE: This does not indicate that 4965 or 3945 has completed |
268 | * init or post-power-down restore of internal SRAM memory. |
269 | * Use CSR_UCODE_DRV_GP1_BIT_MAC_SLEEP as indication that |
270 | * SRAM is restored and uCode is in normal operation mode. |
271 | * Later devices (5xxx/6xxx/1xxx) use non-volatile SRAM, and |
272 | * do not need to save/restore it. |
273 | * NOTE: After device reset, this bit remains "0" until host sets |
274 | * INIT_DONE |
275 | */ |
276 | #define CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY (0x00000001) |
277 | #define CSR_GP_CNTRL_REG_FLAG_INIT_DONE (0x00000004) |
278 | #define CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ (0x00000008) |
279 | #define CSR_GP_CNTRL_REG_FLAG_GOING_TO_SLEEP (0x00000010) |
280 | |
281 | #define CSR_GP_CNTRL_REG_VAL_MAC_ACCESS_EN (0x00000001) |
282 | |
283 | #define CSR_GP_CNTRL_REG_MSK_POWER_SAVE_TYPE (0x07000000) |
284 | #define CSR_GP_CNTRL_REG_FLAG_MAC_POWER_SAVE (0x04000000) |
285 | #define CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW (0x08000000) |
286 | |
287 | /* EEPROM REG */ |
288 | #define CSR_EEPROM_REG_READ_VALID_MSK (0x00000001) |
289 | #define CSR_EEPROM_REG_BIT_CMD (0x00000002) |
290 | #define CSR_EEPROM_REG_MSK_ADDR (0x0000FFFC) |
291 | #define CSR_EEPROM_REG_MSK_DATA (0xFFFF0000) |
292 | |
293 | /* EEPROM GP */ |
294 | #define CSR_EEPROM_GP_VALID_MSK (0x00000007) /* signature */ |
295 | #define CSR_EEPROM_GP_IF_OWNER_MSK (0x00000180) |
296 | #define CSR_EEPROM_GP_GOOD_SIG_EEP_LESS_THAN_4K (0x00000002) |
297 | #define CSR_EEPROM_GP_GOOD_SIG_EEP_MORE_THAN_4K (0x00000004) |
298 | |
299 | /* GP REG */ |
300 | #define CSR_GP_REG_POWER_SAVE_STATUS_MSK (0x03000000) /* bit 24/25 */ |
301 | #define CSR_GP_REG_NO_POWER_SAVE (0x00000000) |
302 | #define CSR_GP_REG_MAC_POWER_SAVE (0x01000000) |
303 | #define CSR_GP_REG_PHY_POWER_SAVE (0x02000000) |
304 | #define CSR_GP_REG_POWER_SAVE_ERROR (0x03000000) |
305 | |
306 | /* CSR GIO */ |
307 | #define CSR_GIO_REG_VAL_L0S_ENABLED (0x00000002) |
308 | |
309 | /* |
310 | * UCODE-DRIVER GP (general purpose) mailbox register 1 |
311 | * Host driver and uCode write and/or read this register to communicate with |
312 | * each other. |
313 | * Bit fields: |
314 | * 4: UCODE_DISABLE |
315 | * Host sets this to request permanent halt of uCode, same as |
316 | * sending CARD_STATE command with "halt" bit set. |
317 | * 3: CT_KILL_EXIT |
318 | * Host sets this to request exit from CT_KILL state, i.e. host thinks |
319 | * device temperature is low enough to continue normal operation. |
320 | * 2: CMD_BLOCKED |
321 | * Host sets this during RF KILL power-down sequence (HW, SW, CT KILL) |
322 | * to release uCode to clear all Tx and command queues, enter |
323 | * unassociated mode, and power down. |
324 | * NOTE: Some devices also use HBUS_TARG_MBX_C register for this bit. |
325 | * 1: SW_BIT_RFKILL |
326 | * Host sets this when issuing CARD_STATE command to request |
327 | * device sleep. |
328 | * 0: MAC_SLEEP |
329 | * uCode sets this when preparing a power-saving power-down. |
330 | * uCode resets this when power-up is complete and SRAM is sane. |
331 | * NOTE: 3945/4965 saves internal SRAM data to host when powering down, |
332 | * and must restore this data after powering back up. |
333 | * MAC_SLEEP is the best indication that restore is complete. |
334 | * Later devices (5xxx/6xxx/1xxx) use non-volatile SRAM, and |
335 | * do not need to save/restore it. |
336 | */ |
337 | #define CSR_UCODE_DRV_GP1_BIT_MAC_SLEEP (0x00000001) |
338 | #define CSR_UCODE_SW_BIT_RFKILL (0x00000002) |
339 | #define CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED (0x00000004) |
340 | #define CSR_UCODE_DRV_GP1_REG_BIT_CT_KILL_EXIT (0x00000008) |
341 | |
342 | /* GIO Chicken Bits (PCI Express bus link power management) */ |
343 | #define CSR_GIO_CHICKEN_BITS_REG_BIT_L1A_NO_L0S_RX (0x00800000) |
344 | #define CSR_GIO_CHICKEN_BITS_REG_BIT_DIS_L0S_EXIT_TIMER (0x20000000) |
345 | |
346 | /* LED */ |
347 | #define CSR_LED_BSM_CTRL_MSK (0xFFFFFFDF) |
348 | #define CSR_LED_REG_TRUN_ON (0x78) |
349 | #define CSR_LED_REG_TRUN_OFF (0x38) |
350 | |
351 | /* ANA_PLL */ |
352 | #define CSR39_ANA_PLL_CFG_VAL (0x01000000) |
353 | |
354 | /* HPET MEM debug */ |
355 | #define CSR_DBG_HPET_MEM_REG_VAL (0xFFFF0000) |
356 | |
357 | /* DRAM INT TBL */ |
358 | #define CSR_DRAM_INT_TBL_ENABLE (1 << 31) |
359 | #define CSR_DRAM_INIT_TBL_WRAP_CHECK (1 << 27) |
360 | |
361 | /* |
362 | * HBUS (Host-side Bus) |
363 | * |
364 | * HBUS registers are mapped directly into PCI bus space, but are used |
365 | * to indirectly access device's internal memory or registers that |
366 | * may be powered-down. |
367 | * |
368 | * Use il_wr()/il_rd() family |
369 | * for these registers; |
370 | * host must "grab nic access" via CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ |
371 | * to make sure the MAC (uCode processor, etc.) is powered up for accessing |
372 | * internal resources. |
373 | * |
374 | * Do not use _il_wr()/_il_rd() family to access these registers; |
375 | * these provide only simple PCI bus access, without waking up the MAC. |
376 | */ |
377 | #define HBUS_BASE (0x400) |
378 | |
379 | /* |
380 | * Registers for accessing device's internal SRAM memory (e.g. SCD SRAM |
381 | * structures, error log, event log, verifying uCode load). |
382 | * First write to address register, then read from or write to data register |
383 | * to complete the job. Once the address register is set up, accesses to |
384 | * data registers auto-increment the address by one dword. |
385 | * Bit usage for address registers (read or write): |
386 | * 0-31: memory address within device |
387 | */ |
388 | #define HBUS_TARG_MEM_RADDR (HBUS_BASE+0x00c) |
389 | #define HBUS_TARG_MEM_WADDR (HBUS_BASE+0x010) |
390 | #define HBUS_TARG_MEM_WDAT (HBUS_BASE+0x018) |
391 | #define HBUS_TARG_MEM_RDAT (HBUS_BASE+0x01c) |
392 | |
393 | /* Mailbox C, used as workaround alternative to CSR_UCODE_DRV_GP1 mailbox */ |
394 | #define HBUS_TARG_MBX_C (HBUS_BASE+0x030) |
395 | #define HBUS_TARG_MBX_C_REG_BIT_CMD_BLOCKED (0x00000004) |
396 | |
397 | /* |
398 | * Registers for accessing device's internal peripheral registers |
399 | * (e.g. SCD, BSM, etc.). First write to address register, |
400 | * then read from or write to data register to complete the job. |
401 | * Bit usage for address registers (read or write): |
402 | * 0-15: register address (offset) within device |
403 | * 24-25: (# bytes - 1) to read or write (e.g. 3 for dword) |
404 | */ |
405 | #define HBUS_TARG_PRPH_WADDR (HBUS_BASE+0x044) |
406 | #define HBUS_TARG_PRPH_RADDR (HBUS_BASE+0x048) |
407 | #define HBUS_TARG_PRPH_WDAT (HBUS_BASE+0x04c) |
408 | #define HBUS_TARG_PRPH_RDAT (HBUS_BASE+0x050) |
409 | |
410 | /* |
411 | * Per-Tx-queue write pointer (idx, really!) |
412 | * Indicates idx to next TFD that driver will fill (1 past latest filled). |
413 | * Bit usage: |
414 | * 0-7: queue write idx |
415 | * 11-8: queue selector |
416 | */ |
417 | #define HBUS_TARG_WRPTR (HBUS_BASE+0x060) |
418 | |
419 | #endif /* !__il_csr_h__ */ |
420 | |