2 * Copyright (c) 2005-2011 Atheros Communications Inc.
3 * Copyright (c) 2011-2013 Qualcomm Atheros, Inc.
5 * Permission to use, copy, modify, and/or distribute this software for any
6 * purpose with or without fee is hereby granted, provided that the above
7 * copyright notice and this permission notice appear in all copies.
9 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
18 #include <linux/pci.h>
19 #include <linux/module.h>
20 #include <linux/interrupt.h>
21 #include <linux/spinlock.h>
22 #include <linux/bitops.h>
27 #include "targaddrs.h"
36 enum ath10k_pci_irq_mode {
37 ATH10K_PCI_IRQ_AUTO = 0,
38 ATH10K_PCI_IRQ_LEGACY = 1,
39 ATH10K_PCI_IRQ_MSI = 2,
42 enum ath10k_pci_reset_mode {
43 ATH10K_PCI_RESET_AUTO = 0,
44 ATH10K_PCI_RESET_WARM_ONLY = 1,
47 static unsigned int ath10k_pci_irq_mode = ATH10K_PCI_IRQ_AUTO;
48 static unsigned int ath10k_pci_reset_mode = ATH10K_PCI_RESET_AUTO;
50 module_param_named(irq_mode, ath10k_pci_irq_mode, uint, 0644);
51 MODULE_PARM_DESC(irq_mode, "0: auto, 1: legacy, 2: msi (default: 0)");
53 module_param_named(reset_mode, ath10k_pci_reset_mode, uint, 0644);
54 MODULE_PARM_DESC(reset_mode, "0: auto, 1: warm only (default: 0)");
56 /* how long wait to wait for target to initialise, in ms */
57 #define ATH10K_PCI_TARGET_WAIT 3000
58 #define ATH10K_PCI_NUM_WARM_RESET_ATTEMPTS 3
60 #define QCA988X_2_0_DEVICE_ID (0x003c)
61 #define QCA6164_2_1_DEVICE_ID (0x0041)
62 #define QCA6174_2_1_DEVICE_ID (0x003e)
63 #define QCA99X0_2_0_DEVICE_ID (0x0040)
65 static const struct pci_device_id ath10k_pci_id_table[] = {
66 { PCI_VDEVICE(ATHEROS, QCA988X_2_0_DEVICE_ID) }, /* PCI-E QCA988X V2 */
67 { PCI_VDEVICE(ATHEROS, QCA6164_2_1_DEVICE_ID) }, /* PCI-E QCA6164 V2.1 */
68 { PCI_VDEVICE(ATHEROS, QCA6174_2_1_DEVICE_ID) }, /* PCI-E QCA6174 V2.1 */
69 { PCI_VDEVICE(ATHEROS, QCA99X0_2_0_DEVICE_ID) }, /* PCI-E QCA99X0 V2 */
73 static const struct ath10k_pci_supp_chip ath10k_pci_supp_chips[] = {
74 /* QCA988X pre 2.0 chips are not supported because they need some nasty
75 * hacks. ath10k doesn't have them and these devices crash horribly
78 { QCA988X_2_0_DEVICE_ID, QCA988X_HW_2_0_CHIP_ID_REV },
80 { QCA6164_2_1_DEVICE_ID, QCA6174_HW_2_1_CHIP_ID_REV },
81 { QCA6164_2_1_DEVICE_ID, QCA6174_HW_2_2_CHIP_ID_REV },
82 { QCA6164_2_1_DEVICE_ID, QCA6174_HW_3_0_CHIP_ID_REV },
83 { QCA6164_2_1_DEVICE_ID, QCA6174_HW_3_1_CHIP_ID_REV },
84 { QCA6164_2_1_DEVICE_ID, QCA6174_HW_3_2_CHIP_ID_REV },
86 { QCA6174_2_1_DEVICE_ID, QCA6174_HW_2_1_CHIP_ID_REV },
87 { QCA6174_2_1_DEVICE_ID, QCA6174_HW_2_2_CHIP_ID_REV },
88 { QCA6174_2_1_DEVICE_ID, QCA6174_HW_3_0_CHIP_ID_REV },
89 { QCA6174_2_1_DEVICE_ID, QCA6174_HW_3_1_CHIP_ID_REV },
90 { QCA6174_2_1_DEVICE_ID, QCA6174_HW_3_2_CHIP_ID_REV },
92 { QCA99X0_2_0_DEVICE_ID, QCA99X0_HW_2_0_CHIP_ID_REV },
95 static void ath10k_pci_buffer_cleanup(struct ath10k *ar);
96 static int ath10k_pci_cold_reset(struct ath10k *ar);
97 static int ath10k_pci_safe_chip_reset(struct ath10k *ar);
98 static int ath10k_pci_wait_for_target_init(struct ath10k *ar);
99 static int ath10k_pci_init_irq(struct ath10k *ar);
100 static int ath10k_pci_deinit_irq(struct ath10k *ar);
101 static int ath10k_pci_request_irq(struct ath10k *ar);
102 static void ath10k_pci_free_irq(struct ath10k *ar);
103 static int ath10k_pci_bmi_wait(struct ath10k_ce_pipe *tx_pipe,
104 struct ath10k_ce_pipe *rx_pipe,
105 struct bmi_xfer *xfer);
106 static int ath10k_pci_qca99x0_chip_reset(struct ath10k *ar);
107 static void ath10k_pci_htc_tx_cb(struct ath10k_ce_pipe *ce_state);
108 static void ath10k_pci_htc_rx_cb(struct ath10k_ce_pipe *ce_state);
109 static void ath10k_pci_htt_tx_cb(struct ath10k_ce_pipe *ce_state);
110 static void ath10k_pci_htt_rx_cb(struct ath10k_ce_pipe *ce_state);
112 static const struct ce_attr host_ce_config_wlan[] = {
113 /* CE0: host->target HTC control and raw streams */
115 .flags = CE_ATTR_FLAGS,
119 .send_cb = ath10k_pci_htc_tx_cb,
122 /* CE1: target->host HTT + HTC control */
124 .flags = CE_ATTR_FLAGS,
127 .dest_nentries = 512,
128 .recv_cb = ath10k_pci_htc_rx_cb,
131 /* CE2: target->host WMI */
133 .flags = CE_ATTR_FLAGS,
136 .dest_nentries = 128,
137 .recv_cb = ath10k_pci_htc_rx_cb,
140 /* CE3: host->target WMI */
142 .flags = CE_ATTR_FLAGS,
146 .send_cb = ath10k_pci_htc_tx_cb,
149 /* CE4: host->target HTT */
151 .flags = CE_ATTR_FLAGS | CE_ATTR_DIS_INTR,
152 .src_nentries = CE_HTT_H2T_MSG_SRC_NENTRIES,
155 .send_cb = ath10k_pci_htt_tx_cb,
158 /* CE5: target->host HTT (HIF->HTT) */
160 .flags = CE_ATTR_FLAGS,
163 .dest_nentries = 512,
164 .recv_cb = ath10k_pci_htt_rx_cb,
167 /* CE6: target autonomous hif_memcpy */
169 .flags = CE_ATTR_FLAGS,
175 /* CE7: ce_diag, the Diagnostic Window */
177 .flags = CE_ATTR_FLAGS,
179 .src_sz_max = DIAG_TRANSFER_LIMIT,
183 /* CE8: target->host pktlog */
185 .flags = CE_ATTR_FLAGS,
188 .dest_nentries = 128,
191 /* CE9 target autonomous qcache memcpy */
193 .flags = CE_ATTR_FLAGS,
199 /* CE10: target autonomous hif memcpy */
201 .flags = CE_ATTR_FLAGS,
207 /* CE11: target autonomous hif memcpy */
209 .flags = CE_ATTR_FLAGS,
216 /* Target firmware's Copy Engine configuration. */
217 static const struct ce_pipe_config target_ce_config_wlan[] = {
218 /* CE0: host->target HTC control and raw streams */
220 .pipenum = __cpu_to_le32(0),
221 .pipedir = __cpu_to_le32(PIPEDIR_OUT),
222 .nentries = __cpu_to_le32(32),
223 .nbytes_max = __cpu_to_le32(256),
224 .flags = __cpu_to_le32(CE_ATTR_FLAGS),
225 .reserved = __cpu_to_le32(0),
228 /* CE1: target->host HTT + HTC control */
230 .pipenum = __cpu_to_le32(1),
231 .pipedir = __cpu_to_le32(PIPEDIR_IN),
232 .nentries = __cpu_to_le32(32),
233 .nbytes_max = __cpu_to_le32(2048),
234 .flags = __cpu_to_le32(CE_ATTR_FLAGS),
235 .reserved = __cpu_to_le32(0),
238 /* CE2: target->host WMI */
240 .pipenum = __cpu_to_le32(2),
241 .pipedir = __cpu_to_le32(PIPEDIR_IN),
242 .nentries = __cpu_to_le32(64),
243 .nbytes_max = __cpu_to_le32(2048),
244 .flags = __cpu_to_le32(CE_ATTR_FLAGS),
245 .reserved = __cpu_to_le32(0),
248 /* CE3: host->target WMI */
250 .pipenum = __cpu_to_le32(3),
251 .pipedir = __cpu_to_le32(PIPEDIR_OUT),
252 .nentries = __cpu_to_le32(32),
253 .nbytes_max = __cpu_to_le32(2048),
254 .flags = __cpu_to_le32(CE_ATTR_FLAGS),
255 .reserved = __cpu_to_le32(0),
258 /* CE4: host->target HTT */
260 .pipenum = __cpu_to_le32(4),
261 .pipedir = __cpu_to_le32(PIPEDIR_OUT),
262 .nentries = __cpu_to_le32(256),
263 .nbytes_max = __cpu_to_le32(256),
264 .flags = __cpu_to_le32(CE_ATTR_FLAGS),
265 .reserved = __cpu_to_le32(0),
268 /* NB: 50% of src nentries, since tx has 2 frags */
270 /* CE5: target->host HTT (HIF->HTT) */
272 .pipenum = __cpu_to_le32(5),
273 .pipedir = __cpu_to_le32(PIPEDIR_IN),
274 .nentries = __cpu_to_le32(32),
275 .nbytes_max = __cpu_to_le32(512),
276 .flags = __cpu_to_le32(CE_ATTR_FLAGS),
277 .reserved = __cpu_to_le32(0),
280 /* CE6: Reserved for target autonomous hif_memcpy */
282 .pipenum = __cpu_to_le32(6),
283 .pipedir = __cpu_to_le32(PIPEDIR_INOUT),
284 .nentries = __cpu_to_le32(32),
285 .nbytes_max = __cpu_to_le32(4096),
286 .flags = __cpu_to_le32(CE_ATTR_FLAGS),
287 .reserved = __cpu_to_le32(0),
290 /* CE7 used only by Host */
292 .pipenum = __cpu_to_le32(7),
293 .pipedir = __cpu_to_le32(PIPEDIR_INOUT),
294 .nentries = __cpu_to_le32(0),
295 .nbytes_max = __cpu_to_le32(0),
296 .flags = __cpu_to_le32(0),
297 .reserved = __cpu_to_le32(0),
300 /* CE8 target->host packtlog */
302 .pipenum = __cpu_to_le32(8),
303 .pipedir = __cpu_to_le32(PIPEDIR_IN),
304 .nentries = __cpu_to_le32(64),
305 .nbytes_max = __cpu_to_le32(2048),
306 .flags = __cpu_to_le32(CE_ATTR_FLAGS | CE_ATTR_DIS_INTR),
307 .reserved = __cpu_to_le32(0),
310 /* CE9 target autonomous qcache memcpy */
312 .pipenum = __cpu_to_le32(9),
313 .pipedir = __cpu_to_le32(PIPEDIR_INOUT),
314 .nentries = __cpu_to_le32(32),
315 .nbytes_max = __cpu_to_le32(2048),
316 .flags = __cpu_to_le32(CE_ATTR_FLAGS | CE_ATTR_DIS_INTR),
317 .reserved = __cpu_to_le32(0),
320 /* It not necessary to send target wlan configuration for CE10 & CE11
321 * as these CEs are not actively used in target.
326 * Map from service/endpoint to Copy Engine.
327 * This table is derived from the CE_PCI TABLE, above.
328 * It is passed to the Target at startup for use by firmware.
330 static const struct service_to_pipe target_service_to_ce_map_wlan[] = {
332 __cpu_to_le32(ATH10K_HTC_SVC_ID_WMI_DATA_VO),
333 __cpu_to_le32(PIPEDIR_OUT), /* out = UL = host -> target */
337 __cpu_to_le32(ATH10K_HTC_SVC_ID_WMI_DATA_VO),
338 __cpu_to_le32(PIPEDIR_IN), /* in = DL = target -> host */
342 __cpu_to_le32(ATH10K_HTC_SVC_ID_WMI_DATA_BK),
343 __cpu_to_le32(PIPEDIR_OUT), /* out = UL = host -> target */
347 __cpu_to_le32(ATH10K_HTC_SVC_ID_WMI_DATA_BK),
348 __cpu_to_le32(PIPEDIR_IN), /* in = DL = target -> host */
352 __cpu_to_le32(ATH10K_HTC_SVC_ID_WMI_DATA_BE),
353 __cpu_to_le32(PIPEDIR_OUT), /* out = UL = host -> target */
357 __cpu_to_le32(ATH10K_HTC_SVC_ID_WMI_DATA_BE),
358 __cpu_to_le32(PIPEDIR_IN), /* in = DL = target -> host */
362 __cpu_to_le32(ATH10K_HTC_SVC_ID_WMI_DATA_VI),
363 __cpu_to_le32(PIPEDIR_OUT), /* out = UL = host -> target */
367 __cpu_to_le32(ATH10K_HTC_SVC_ID_WMI_DATA_VI),
368 __cpu_to_le32(PIPEDIR_IN), /* in = DL = target -> host */
372 __cpu_to_le32(ATH10K_HTC_SVC_ID_WMI_CONTROL),
373 __cpu_to_le32(PIPEDIR_OUT), /* out = UL = host -> target */
377 __cpu_to_le32(ATH10K_HTC_SVC_ID_WMI_CONTROL),
378 __cpu_to_le32(PIPEDIR_IN), /* in = DL = target -> host */
382 __cpu_to_le32(ATH10K_HTC_SVC_ID_RSVD_CTRL),
383 __cpu_to_le32(PIPEDIR_OUT), /* out = UL = host -> target */
387 __cpu_to_le32(ATH10K_HTC_SVC_ID_RSVD_CTRL),
388 __cpu_to_le32(PIPEDIR_IN), /* in = DL = target -> host */
392 __cpu_to_le32(ATH10K_HTC_SVC_ID_TEST_RAW_STREAMS),
393 __cpu_to_le32(PIPEDIR_OUT), /* out = UL = host -> target */
397 __cpu_to_le32(ATH10K_HTC_SVC_ID_TEST_RAW_STREAMS),
398 __cpu_to_le32(PIPEDIR_IN), /* in = DL = target -> host */
402 __cpu_to_le32(ATH10K_HTC_SVC_ID_HTT_DATA_MSG),
403 __cpu_to_le32(PIPEDIR_OUT), /* out = UL = host -> target */
407 __cpu_to_le32(ATH10K_HTC_SVC_ID_HTT_DATA_MSG),
408 __cpu_to_le32(PIPEDIR_IN), /* in = DL = target -> host */
412 /* (Additions here) */
421 static bool ath10k_pci_is_awake(struct ath10k *ar)
423 struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
424 u32 val = ioread32(ar_pci->mem + PCIE_LOCAL_BASE_ADDRESS +
427 return RTC_STATE_V_GET(val) == RTC_STATE_V_ON;
430 static void __ath10k_pci_wake(struct ath10k *ar)
432 struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
434 lockdep_assert_held(&ar_pci->ps_lock);
436 ath10k_dbg(ar, ATH10K_DBG_PCI_PS, "pci ps wake reg refcount %lu awake %d\n",
437 ar_pci->ps_wake_refcount, ar_pci->ps_awake);
439 iowrite32(PCIE_SOC_WAKE_V_MASK,
440 ar_pci->mem + PCIE_LOCAL_BASE_ADDRESS +
441 PCIE_SOC_WAKE_ADDRESS);
444 static void __ath10k_pci_sleep(struct ath10k *ar)
446 struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
448 lockdep_assert_held(&ar_pci->ps_lock);
450 ath10k_dbg(ar, ATH10K_DBG_PCI_PS, "pci ps sleep reg refcount %lu awake %d\n",
451 ar_pci->ps_wake_refcount, ar_pci->ps_awake);
453 iowrite32(PCIE_SOC_WAKE_RESET,
454 ar_pci->mem + PCIE_LOCAL_BASE_ADDRESS +
455 PCIE_SOC_WAKE_ADDRESS);
456 ar_pci->ps_awake = false;
459 static int ath10k_pci_wake_wait(struct ath10k *ar)
464 while (tot_delay < PCIE_WAKE_TIMEOUT) {
465 if (ath10k_pci_is_awake(ar)) {
466 if (tot_delay > PCIE_WAKE_LATE_US)
467 ath10k_warn(ar, "device wakeup took %d ms which is unusally long, otherwise it works normally.\n",
473 tot_delay += curr_delay;
482 static int ath10k_pci_force_wake(struct ath10k *ar)
484 struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
488 spin_lock_irqsave(&ar_pci->ps_lock, flags);
490 if (!ar_pci->ps_awake) {
491 iowrite32(PCIE_SOC_WAKE_V_MASK,
492 ar_pci->mem + PCIE_LOCAL_BASE_ADDRESS +
493 PCIE_SOC_WAKE_ADDRESS);
495 ret = ath10k_pci_wake_wait(ar);
497 ar_pci->ps_awake = true;
500 spin_unlock_irqrestore(&ar_pci->ps_lock, flags);
505 static void ath10k_pci_force_sleep(struct ath10k *ar)
507 struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
510 spin_lock_irqsave(&ar_pci->ps_lock, flags);
512 iowrite32(PCIE_SOC_WAKE_RESET,
513 ar_pci->mem + PCIE_LOCAL_BASE_ADDRESS +
514 PCIE_SOC_WAKE_ADDRESS);
515 ar_pci->ps_awake = false;
517 spin_unlock_irqrestore(&ar_pci->ps_lock, flags);
520 static int ath10k_pci_wake(struct ath10k *ar)
522 struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
526 if (ar_pci->pci_ps == 0)
529 spin_lock_irqsave(&ar_pci->ps_lock, flags);
531 ath10k_dbg(ar, ATH10K_DBG_PCI_PS, "pci ps wake refcount %lu awake %d\n",
532 ar_pci->ps_wake_refcount, ar_pci->ps_awake);
534 /* This function can be called very frequently. To avoid excessive
535 * CPU stalls for MMIO reads use a cache var to hold the device state.
537 if (!ar_pci->ps_awake) {
538 __ath10k_pci_wake(ar);
540 ret = ath10k_pci_wake_wait(ar);
542 ar_pci->ps_awake = true;
546 ar_pci->ps_wake_refcount++;
547 WARN_ON(ar_pci->ps_wake_refcount == 0);
550 spin_unlock_irqrestore(&ar_pci->ps_lock, flags);
555 static void ath10k_pci_sleep(struct ath10k *ar)
557 struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
560 if (ar_pci->pci_ps == 0)
563 spin_lock_irqsave(&ar_pci->ps_lock, flags);
565 ath10k_dbg(ar, ATH10K_DBG_PCI_PS, "pci ps sleep refcount %lu awake %d\n",
566 ar_pci->ps_wake_refcount, ar_pci->ps_awake);
568 if (WARN_ON(ar_pci->ps_wake_refcount == 0))
571 ar_pci->ps_wake_refcount--;
573 mod_timer(&ar_pci->ps_timer, jiffies +
574 msecs_to_jiffies(ATH10K_PCI_SLEEP_GRACE_PERIOD_MSEC));
577 spin_unlock_irqrestore(&ar_pci->ps_lock, flags);
580 static void ath10k_pci_ps_timer(unsigned long ptr)
582 struct ath10k *ar = (void *)ptr;
583 struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
586 spin_lock_irqsave(&ar_pci->ps_lock, flags);
588 ath10k_dbg(ar, ATH10K_DBG_PCI_PS, "pci ps timer refcount %lu awake %d\n",
589 ar_pci->ps_wake_refcount, ar_pci->ps_awake);
591 if (ar_pci->ps_wake_refcount > 0)
594 __ath10k_pci_sleep(ar);
597 spin_unlock_irqrestore(&ar_pci->ps_lock, flags);
600 static void ath10k_pci_sleep_sync(struct ath10k *ar)
602 struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
605 if (ar_pci->pci_ps == 0) {
606 ath10k_pci_force_sleep(ar);
610 del_timer_sync(&ar_pci->ps_timer);
612 spin_lock_irqsave(&ar_pci->ps_lock, flags);
613 WARN_ON(ar_pci->ps_wake_refcount > 0);
614 __ath10k_pci_sleep(ar);
615 spin_unlock_irqrestore(&ar_pci->ps_lock, flags);
618 void ath10k_pci_write32(struct ath10k *ar, u32 offset, u32 value)
620 struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
623 if (unlikely(offset + sizeof(value) > ar_pci->mem_len)) {
624 ath10k_warn(ar, "refusing to write mmio out of bounds at 0x%08x - 0x%08zx (max 0x%08zx)\n",
625 offset, offset + sizeof(value), ar_pci->mem_len);
629 ret = ath10k_pci_wake(ar);
631 ath10k_warn(ar, "failed to wake target for write32 of 0x%08x at 0x%08x: %d\n",
636 iowrite32(value, ar_pci->mem + offset);
637 ath10k_pci_sleep(ar);
640 u32 ath10k_pci_read32(struct ath10k *ar, u32 offset)
642 struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
646 if (unlikely(offset + sizeof(val) > ar_pci->mem_len)) {
647 ath10k_warn(ar, "refusing to read mmio out of bounds at 0x%08x - 0x%08zx (max 0x%08zx)\n",
648 offset, offset + sizeof(val), ar_pci->mem_len);
652 ret = ath10k_pci_wake(ar);
654 ath10k_warn(ar, "failed to wake target for read32 at 0x%08x: %d\n",
659 val = ioread32(ar_pci->mem + offset);
660 ath10k_pci_sleep(ar);
665 u32 ath10k_pci_soc_read32(struct ath10k *ar, u32 addr)
667 return ath10k_pci_read32(ar, RTC_SOC_BASE_ADDRESS + addr);
670 void ath10k_pci_soc_write32(struct ath10k *ar, u32 addr, u32 val)
672 ath10k_pci_write32(ar, RTC_SOC_BASE_ADDRESS + addr, val);
675 u32 ath10k_pci_reg_read32(struct ath10k *ar, u32 addr)
677 return ath10k_pci_read32(ar, PCIE_LOCAL_BASE_ADDRESS + addr);
680 void ath10k_pci_reg_write32(struct ath10k *ar, u32 addr, u32 val)
682 ath10k_pci_write32(ar, PCIE_LOCAL_BASE_ADDRESS + addr, val);
685 static bool ath10k_pci_irq_pending(struct ath10k *ar)
689 /* Check if the shared legacy irq is for us */
690 cause = ath10k_pci_read32(ar, SOC_CORE_BASE_ADDRESS +
691 PCIE_INTR_CAUSE_ADDRESS);
692 if (cause & (PCIE_INTR_FIRMWARE_MASK | PCIE_INTR_CE_MASK_ALL))
698 static void ath10k_pci_disable_and_clear_legacy_irq(struct ath10k *ar)
700 /* IMPORTANT: INTR_CLR register has to be set after
701 * INTR_ENABLE is set to 0, otherwise interrupt can not be
703 ath10k_pci_write32(ar, SOC_CORE_BASE_ADDRESS + PCIE_INTR_ENABLE_ADDRESS,
705 ath10k_pci_write32(ar, SOC_CORE_BASE_ADDRESS + PCIE_INTR_CLR_ADDRESS,
706 PCIE_INTR_FIRMWARE_MASK | PCIE_INTR_CE_MASK_ALL);
708 /* IMPORTANT: this extra read transaction is required to
709 * flush the posted write buffer. */
710 (void)ath10k_pci_read32(ar, SOC_CORE_BASE_ADDRESS +
711 PCIE_INTR_ENABLE_ADDRESS);
714 static void ath10k_pci_enable_legacy_irq(struct ath10k *ar)
716 ath10k_pci_write32(ar, SOC_CORE_BASE_ADDRESS +
717 PCIE_INTR_ENABLE_ADDRESS,
718 PCIE_INTR_FIRMWARE_MASK | PCIE_INTR_CE_MASK_ALL);
720 /* IMPORTANT: this extra read transaction is required to
721 * flush the posted write buffer. */
722 (void)ath10k_pci_read32(ar, SOC_CORE_BASE_ADDRESS +
723 PCIE_INTR_ENABLE_ADDRESS);
726 static inline const char *ath10k_pci_get_irq_method(struct ath10k *ar)
728 struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
730 if (ar_pci->num_msi_intrs > 1)
733 if (ar_pci->num_msi_intrs == 1)
739 static int __ath10k_pci_rx_post_buf(struct ath10k_pci_pipe *pipe)
741 struct ath10k *ar = pipe->hif_ce_state;
742 struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
743 struct ath10k_ce_pipe *ce_pipe = pipe->ce_hdl;
748 skb = dev_alloc_skb(pipe->buf_sz);
752 WARN_ONCE((unsigned long)skb->data & 3, "unaligned skb");
754 paddr = dma_map_single(ar->dev, skb->data,
755 skb->len + skb_tailroom(skb),
757 if (unlikely(dma_mapping_error(ar->dev, paddr))) {
758 ath10k_warn(ar, "failed to dma map pci rx buf\n");
759 dev_kfree_skb_any(skb);
763 ATH10K_SKB_RXCB(skb)->paddr = paddr;
765 spin_lock_bh(&ar_pci->ce_lock);
766 ret = __ath10k_ce_rx_post_buf(ce_pipe, skb, paddr);
767 spin_unlock_bh(&ar_pci->ce_lock);
769 dma_unmap_single(ar->dev, paddr, skb->len + skb_tailroom(skb),
771 dev_kfree_skb_any(skb);
778 static void ath10k_pci_rx_post_pipe(struct ath10k_pci_pipe *pipe)
780 struct ath10k *ar = pipe->hif_ce_state;
781 struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
782 struct ath10k_ce_pipe *ce_pipe = pipe->ce_hdl;
785 if (pipe->buf_sz == 0)
788 if (!ce_pipe->dest_ring)
791 spin_lock_bh(&ar_pci->ce_lock);
792 num = __ath10k_ce_rx_num_free_bufs(ce_pipe);
793 spin_unlock_bh(&ar_pci->ce_lock);
795 ret = __ath10k_pci_rx_post_buf(pipe);
799 ath10k_warn(ar, "failed to post pci rx buf: %d\n", ret);
800 mod_timer(&ar_pci->rx_post_retry, jiffies +
801 ATH10K_PCI_RX_POST_RETRY_MS);
807 static void ath10k_pci_rx_post(struct ath10k *ar)
809 struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
812 for (i = 0; i < CE_COUNT; i++)
813 ath10k_pci_rx_post_pipe(&ar_pci->pipe_info[i]);
816 static void ath10k_pci_rx_replenish_retry(unsigned long ptr)
818 struct ath10k *ar = (void *)ptr;
820 ath10k_pci_rx_post(ar);
823 static u32 ath10k_pci_targ_cpu_to_ce_addr(struct ath10k *ar, u32 addr)
827 switch (ar->hw_rev) {
828 case ATH10K_HW_QCA988X:
829 case ATH10K_HW_QCA6174:
830 val = (ath10k_pci_read32(ar, SOC_CORE_BASE_ADDRESS +
834 case ATH10K_HW_QCA99X0:
835 val = ath10k_pci_read32(ar, PCIE_BAR_REG_ADDRESS);
839 val |= 0x100000 | (addr & 0xfffff);
844 * Diagnostic read/write access is provided for startup/config/debug usage.
845 * Caller must guarantee proper alignment, when applicable, and single user
848 static int ath10k_pci_diag_read_mem(struct ath10k *ar, u32 address, void *data,
851 struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
854 unsigned int completed_nbytes, orig_nbytes, remaining_bytes;
857 struct ath10k_ce_pipe *ce_diag;
858 /* Host buffer address in CE space */
860 dma_addr_t ce_data_base = 0;
861 void *data_buf = NULL;
864 spin_lock_bh(&ar_pci->ce_lock);
866 ce_diag = ar_pci->ce_diag;
869 * Allocate a temporary bounce buffer to hold caller's data
870 * to be DMA'ed from Target. This guarantees
871 * 1) 4-byte alignment
872 * 2) Buffer in DMA-able space
874 orig_nbytes = nbytes;
875 data_buf = (unsigned char *)dma_alloc_coherent(ar->dev,
884 memset(data_buf, 0, orig_nbytes);
886 remaining_bytes = orig_nbytes;
887 ce_data = ce_data_base;
888 while (remaining_bytes) {
889 nbytes = min_t(unsigned int, remaining_bytes,
890 DIAG_TRANSFER_LIMIT);
892 ret = __ath10k_ce_rx_post_buf(ce_diag, NULL, ce_data);
896 /* Request CE to send from Target(!) address to Host buffer */
898 * The address supplied by the caller is in the
899 * Target CPU virtual address space.
901 * In order to use this address with the diagnostic CE,
902 * convert it from Target CPU virtual address space
903 * to CE address space
905 address = ath10k_pci_targ_cpu_to_ce_addr(ar, address);
907 ret = ath10k_ce_send_nolock(ce_diag, NULL, (u32)address, nbytes, 0,
913 while (ath10k_ce_completed_send_next_nolock(ce_diag, NULL, &buf,
917 if (i++ > DIAG_ACCESS_CE_TIMEOUT_MS) {
923 if (nbytes != completed_nbytes) {
928 if (buf != (u32)address) {
934 while (ath10k_ce_completed_recv_next_nolock(ce_diag, NULL, &buf,
939 if (i++ > DIAG_ACCESS_CE_TIMEOUT_MS) {
945 if (nbytes != completed_nbytes) {
950 if (buf != ce_data) {
955 remaining_bytes -= nbytes;
962 memcpy(data, data_buf, orig_nbytes);
964 ath10k_warn(ar, "failed to read diag value at 0x%x: %d\n",
968 dma_free_coherent(ar->dev, orig_nbytes, data_buf,
971 spin_unlock_bh(&ar_pci->ce_lock);
976 static int ath10k_pci_diag_read32(struct ath10k *ar, u32 address, u32 *value)
981 ret = ath10k_pci_diag_read_mem(ar, address, &val, sizeof(val));
982 *value = __le32_to_cpu(val);
987 static int __ath10k_pci_diag_read_hi(struct ath10k *ar, void *dest,
993 host_addr = host_interest_item_address(src);
995 ret = ath10k_pci_diag_read32(ar, host_addr, &addr);
997 ath10k_warn(ar, "failed to get memcpy hi address for firmware address %d: %d\n",
1002 ret = ath10k_pci_diag_read_mem(ar, addr, dest, len);
1004 ath10k_warn(ar, "failed to memcpy firmware memory from %d (%d B): %d\n",
1012 #define ath10k_pci_diag_read_hi(ar, dest, src, len) \
1013 __ath10k_pci_diag_read_hi(ar, dest, HI_ITEM(src), len)
1015 static int ath10k_pci_diag_write_mem(struct ath10k *ar, u32 address,
1016 const void *data, int nbytes)
1018 struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
1021 unsigned int completed_nbytes, orig_nbytes, remaining_bytes;
1024 struct ath10k_ce_pipe *ce_diag;
1025 void *data_buf = NULL;
1026 u32 ce_data; /* Host buffer address in CE space */
1027 dma_addr_t ce_data_base = 0;
1030 spin_lock_bh(&ar_pci->ce_lock);
1032 ce_diag = ar_pci->ce_diag;
1035 * Allocate a temporary bounce buffer to hold caller's data
1036 * to be DMA'ed to Target. This guarantees
1037 * 1) 4-byte alignment
1038 * 2) Buffer in DMA-able space
1040 orig_nbytes = nbytes;
1041 data_buf = (unsigned char *)dma_alloc_coherent(ar->dev,
1050 /* Copy caller's data to allocated DMA buf */
1051 memcpy(data_buf, data, orig_nbytes);
1054 * The address supplied by the caller is in the
1055 * Target CPU virtual address space.
1057 * In order to use this address with the diagnostic CE,
1059 * Target CPU virtual address space
1063 address = ath10k_pci_targ_cpu_to_ce_addr(ar, address);
1065 remaining_bytes = orig_nbytes;
1066 ce_data = ce_data_base;
1067 while (remaining_bytes) {
1068 /* FIXME: check cast */
1069 nbytes = min_t(int, remaining_bytes, DIAG_TRANSFER_LIMIT);
1071 /* Set up to receive directly into Target(!) address */
1072 ret = __ath10k_ce_rx_post_buf(ce_diag, NULL, address);
1077 * Request CE to send caller-supplied data that
1078 * was copied to bounce buffer to Target(!) address.
1080 ret = ath10k_ce_send_nolock(ce_diag, NULL, (u32)ce_data,
1086 while (ath10k_ce_completed_send_next_nolock(ce_diag, NULL, &buf,
1091 if (i++ > DIAG_ACCESS_CE_TIMEOUT_MS) {
1097 if (nbytes != completed_nbytes) {
1102 if (buf != ce_data) {
1108 while (ath10k_ce_completed_recv_next_nolock(ce_diag, NULL, &buf,
1110 &id, &flags) != 0) {
1113 if (i++ > DIAG_ACCESS_CE_TIMEOUT_MS) {
1119 if (nbytes != completed_nbytes) {
1124 if (buf != address) {
1129 remaining_bytes -= nbytes;
1136 dma_free_coherent(ar->dev, orig_nbytes, data_buf,
1141 ath10k_warn(ar, "failed to write diag value at 0x%x: %d\n",
1144 spin_unlock_bh(&ar_pci->ce_lock);
1149 static int ath10k_pci_diag_write32(struct ath10k *ar, u32 address, u32 value)
1151 __le32 val = __cpu_to_le32(value);
1153 return ath10k_pci_diag_write_mem(ar, address, &val, sizeof(val));
1156 /* Called by lower (CE) layer when a send to Target completes. */
1157 static void ath10k_pci_htc_tx_cb(struct ath10k_ce_pipe *ce_state)
1159 struct ath10k *ar = ce_state->ar;
1160 struct sk_buff_head list;
1161 struct sk_buff *skb;
1163 unsigned int nbytes;
1164 unsigned int transfer_id;
1166 __skb_queue_head_init(&list);
1167 while (ath10k_ce_completed_send_next(ce_state, (void **)&skb, &ce_data,
1168 &nbytes, &transfer_id) == 0) {
1169 /* no need to call tx completion for NULL pointers */
1173 __skb_queue_tail(&list, skb);
1176 while ((skb = __skb_dequeue(&list)))
1177 ath10k_htc_tx_completion_handler(ar, skb);
1180 static void ath10k_pci_process_rx_cb(struct ath10k_ce_pipe *ce_state,
1181 void (*callback)(struct ath10k *ar,
1182 struct sk_buff *skb))
1184 struct ath10k *ar = ce_state->ar;
1185 struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
1186 struct ath10k_pci_pipe *pipe_info = &ar_pci->pipe_info[ce_state->id];
1187 struct sk_buff *skb;
1188 struct sk_buff_head list;
1189 void *transfer_context;
1191 unsigned int nbytes, max_nbytes;
1192 unsigned int transfer_id;
1195 __skb_queue_head_init(&list);
1196 while (ath10k_ce_completed_recv_next(ce_state, &transfer_context,
1197 &ce_data, &nbytes, &transfer_id,
1199 skb = transfer_context;
1200 max_nbytes = skb->len + skb_tailroom(skb);
1201 dma_unmap_single(ar->dev, ATH10K_SKB_RXCB(skb)->paddr,
1202 max_nbytes, DMA_FROM_DEVICE);
1204 if (unlikely(max_nbytes < nbytes)) {
1205 ath10k_warn(ar, "rxed more than expected (nbytes %d, max %d)",
1206 nbytes, max_nbytes);
1207 dev_kfree_skb_any(skb);
1211 skb_put(skb, nbytes);
1212 __skb_queue_tail(&list, skb);
1215 while ((skb = __skb_dequeue(&list))) {
1216 ath10k_dbg(ar, ATH10K_DBG_PCI, "pci rx ce pipe %d len %d\n",
1217 ce_state->id, skb->len);
1218 ath10k_dbg_dump(ar, ATH10K_DBG_PCI_DUMP, NULL, "pci rx: ",
1219 skb->data, skb->len);
1224 ath10k_pci_rx_post_pipe(pipe_info);
1227 /* Called by lower (CE) layer when data is received from the Target. */
1228 static void ath10k_pci_htc_rx_cb(struct ath10k_ce_pipe *ce_state)
1230 ath10k_pci_process_rx_cb(ce_state, ath10k_htc_rx_completion_handler);
1233 /* Called by lower (CE) layer when a send to HTT Target completes. */
1234 static void ath10k_pci_htt_tx_cb(struct ath10k_ce_pipe *ce_state)
1236 struct ath10k *ar = ce_state->ar;
1237 struct sk_buff *skb;
1239 unsigned int nbytes;
1240 unsigned int transfer_id;
1242 while (ath10k_ce_completed_send_next(ce_state, (void **)&skb, &ce_data,
1243 &nbytes, &transfer_id) == 0) {
1244 /* no need to call tx completion for NULL pointers */
1248 dma_unmap_single(ar->dev, ATH10K_SKB_CB(skb)->paddr,
1249 skb->len, DMA_TO_DEVICE);
1250 ath10k_htt_hif_tx_complete(ar, skb);
1254 static void ath10k_pci_htt_rx_deliver(struct ath10k *ar, struct sk_buff *skb)
1256 skb_pull(skb, sizeof(struct ath10k_htc_hdr));
1257 ath10k_htt_t2h_msg_handler(ar, skb);
1260 /* Called by lower (CE) layer when HTT data is received from the Target. */
1261 static void ath10k_pci_htt_rx_cb(struct ath10k_ce_pipe *ce_state)
1263 /* CE4 polling needs to be done whenever CE pipe which transports
1264 * HTT Rx (target->host) is processed.
1266 ath10k_ce_per_engine_service(ce_state->ar, 4);
1268 ath10k_pci_process_rx_cb(ce_state, ath10k_pci_htt_rx_deliver);
1271 static int ath10k_pci_hif_tx_sg(struct ath10k *ar, u8 pipe_id,
1272 struct ath10k_hif_sg_item *items, int n_items)
1274 struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
1275 struct ath10k_pci_pipe *pci_pipe = &ar_pci->pipe_info[pipe_id];
1276 struct ath10k_ce_pipe *ce_pipe = pci_pipe->ce_hdl;
1277 struct ath10k_ce_ring *src_ring = ce_pipe->src_ring;
1278 unsigned int nentries_mask;
1279 unsigned int sw_index;
1280 unsigned int write_index;
1283 spin_lock_bh(&ar_pci->ce_lock);
1285 nentries_mask = src_ring->nentries_mask;
1286 sw_index = src_ring->sw_index;
1287 write_index = src_ring->write_index;
1289 if (unlikely(CE_RING_DELTA(nentries_mask,
1290 write_index, sw_index - 1) < n_items)) {
1295 for (i = 0; i < n_items - 1; i++) {
1296 ath10k_dbg(ar, ATH10K_DBG_PCI,
1297 "pci tx item %d paddr 0x%08x len %d n_items %d\n",
1298 i, items[i].paddr, items[i].len, n_items);
1299 ath10k_dbg_dump(ar, ATH10K_DBG_PCI_DUMP, NULL, "pci tx data: ",
1300 items[i].vaddr, items[i].len);
1302 err = ath10k_ce_send_nolock(ce_pipe,
1303 items[i].transfer_context,
1306 items[i].transfer_id,
1307 CE_SEND_FLAG_GATHER);
1312 /* `i` is equal to `n_items -1` after for() */
1314 ath10k_dbg(ar, ATH10K_DBG_PCI,
1315 "pci tx item %d paddr 0x%08x len %d n_items %d\n",
1316 i, items[i].paddr, items[i].len, n_items);
1317 ath10k_dbg_dump(ar, ATH10K_DBG_PCI_DUMP, NULL, "pci tx data: ",
1318 items[i].vaddr, items[i].len);
1320 err = ath10k_ce_send_nolock(ce_pipe,
1321 items[i].transfer_context,
1324 items[i].transfer_id,
1329 spin_unlock_bh(&ar_pci->ce_lock);
1334 __ath10k_ce_send_revert(ce_pipe);
1336 spin_unlock_bh(&ar_pci->ce_lock);
1340 static int ath10k_pci_hif_diag_read(struct ath10k *ar, u32 address, void *buf,
1343 return ath10k_pci_diag_read_mem(ar, address, buf, buf_len);
1346 static u16 ath10k_pci_hif_get_free_queue_number(struct ath10k *ar, u8 pipe)
1348 struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
1350 ath10k_dbg(ar, ATH10K_DBG_PCI, "pci hif get free queue number\n");
1352 return ath10k_ce_num_free_src_entries(ar_pci->pipe_info[pipe].ce_hdl);
1355 static void ath10k_pci_dump_registers(struct ath10k *ar,
1356 struct ath10k_fw_crash_data *crash_data)
1358 __le32 reg_dump_values[REG_DUMP_COUNT_QCA988X] = {};
1361 lockdep_assert_held(&ar->data_lock);
1363 ret = ath10k_pci_diag_read_hi(ar, ®_dump_values[0],
1365 REG_DUMP_COUNT_QCA988X * sizeof(__le32));
1367 ath10k_err(ar, "failed to read firmware dump area: %d\n", ret);
1371 BUILD_BUG_ON(REG_DUMP_COUNT_QCA988X % 4);
1373 ath10k_err(ar, "firmware register dump:\n");
1374 for (i = 0; i < REG_DUMP_COUNT_QCA988X; i += 4)
1375 ath10k_err(ar, "[%02d]: 0x%08X 0x%08X 0x%08X 0x%08X\n",
1377 __le32_to_cpu(reg_dump_values[i]),
1378 __le32_to_cpu(reg_dump_values[i + 1]),
1379 __le32_to_cpu(reg_dump_values[i + 2]),
1380 __le32_to_cpu(reg_dump_values[i + 3]));
1385 for (i = 0; i < REG_DUMP_COUNT_QCA988X; i++)
1386 crash_data->registers[i] = reg_dump_values[i];
1389 static void ath10k_pci_fw_crashed_dump(struct ath10k *ar)
1391 struct ath10k_fw_crash_data *crash_data;
1394 spin_lock_bh(&ar->data_lock);
1396 ar->stats.fw_crash_counter++;
1398 crash_data = ath10k_debug_get_new_fw_crash_data(ar);
1401 scnprintf(uuid, sizeof(uuid), "%pUl", &crash_data->uuid);
1403 scnprintf(uuid, sizeof(uuid), "n/a");
1405 ath10k_err(ar, "firmware crashed! (uuid %s)\n", uuid);
1406 ath10k_print_driver_info(ar);
1407 ath10k_pci_dump_registers(ar, crash_data);
1409 spin_unlock_bh(&ar->data_lock);
1411 queue_work(ar->workqueue, &ar->restart_work);
1414 static void ath10k_pci_hif_send_complete_check(struct ath10k *ar, u8 pipe,
1417 ath10k_dbg(ar, ATH10K_DBG_PCI, "pci hif send complete check\n");
1422 * Decide whether to actually poll for completions, or just
1423 * wait for a later chance.
1424 * If there seem to be plenty of resources left, then just wait
1425 * since checking involves reading a CE register, which is a
1426 * relatively expensive operation.
1428 resources = ath10k_pci_hif_get_free_queue_number(ar, pipe);
1431 * If at least 50% of the total resources are still available,
1432 * don't bother checking again yet.
1434 if (resources > (host_ce_config_wlan[pipe].src_nentries >> 1))
1437 ath10k_ce_per_engine_service(ar, pipe);
1440 static void ath10k_pci_kill_tasklet(struct ath10k *ar)
1442 struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
1445 tasklet_kill(&ar_pci->intr_tq);
1446 tasklet_kill(&ar_pci->msi_fw_err);
1448 for (i = 0; i < CE_COUNT; i++)
1449 tasklet_kill(&ar_pci->pipe_info[i].intr);
1451 del_timer_sync(&ar_pci->rx_post_retry);
1454 static int ath10k_pci_hif_map_service_to_pipe(struct ath10k *ar, u16 service_id,
1455 u8 *ul_pipe, u8 *dl_pipe)
1457 const struct service_to_pipe *entry;
1458 bool ul_set = false, dl_set = false;
1461 ath10k_dbg(ar, ATH10K_DBG_PCI, "pci hif map service\n");
1463 for (i = 0; i < ARRAY_SIZE(target_service_to_ce_map_wlan); i++) {
1464 entry = &target_service_to_ce_map_wlan[i];
1466 if (__le32_to_cpu(entry->service_id) != service_id)
1469 switch (__le32_to_cpu(entry->pipedir)) {
1474 *dl_pipe = __le32_to_cpu(entry->pipenum);
1479 *ul_pipe = __le32_to_cpu(entry->pipenum);
1485 *dl_pipe = __le32_to_cpu(entry->pipenum);
1486 *ul_pipe = __le32_to_cpu(entry->pipenum);
1493 if (WARN_ON(!ul_set || !dl_set))
1499 static void ath10k_pci_hif_get_default_pipe(struct ath10k *ar,
1500 u8 *ul_pipe, u8 *dl_pipe)
1502 ath10k_dbg(ar, ATH10K_DBG_PCI, "pci hif get default pipe\n");
1504 (void)ath10k_pci_hif_map_service_to_pipe(ar,
1505 ATH10K_HTC_SVC_ID_RSVD_CTRL,
1509 static void ath10k_pci_irq_msi_fw_mask(struct ath10k *ar)
1513 switch (ar->hw_rev) {
1514 case ATH10K_HW_QCA988X:
1515 case ATH10K_HW_QCA6174:
1516 val = ath10k_pci_read32(ar, SOC_CORE_BASE_ADDRESS +
1518 val &= ~CORE_CTRL_PCIE_REG_31_MASK;
1519 ath10k_pci_write32(ar, SOC_CORE_BASE_ADDRESS +
1520 CORE_CTRL_ADDRESS, val);
1522 case ATH10K_HW_QCA99X0:
1523 /* TODO: Find appropriate register configuration for QCA99X0
1530 static void ath10k_pci_irq_msi_fw_unmask(struct ath10k *ar)
1534 switch (ar->hw_rev) {
1535 case ATH10K_HW_QCA988X:
1536 case ATH10K_HW_QCA6174:
1537 val = ath10k_pci_read32(ar, SOC_CORE_BASE_ADDRESS +
1539 val |= CORE_CTRL_PCIE_REG_31_MASK;
1540 ath10k_pci_write32(ar, SOC_CORE_BASE_ADDRESS +
1541 CORE_CTRL_ADDRESS, val);
1543 case ATH10K_HW_QCA99X0:
1544 /* TODO: Find appropriate register configuration for QCA99X0
1545 * to unmask irq/MSI.
1551 static void ath10k_pci_irq_disable(struct ath10k *ar)
1553 ath10k_ce_disable_interrupts(ar);
1554 ath10k_pci_disable_and_clear_legacy_irq(ar);
1555 ath10k_pci_irq_msi_fw_mask(ar);
1558 static void ath10k_pci_irq_sync(struct ath10k *ar)
1560 struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
1563 for (i = 0; i < max(1, ar_pci->num_msi_intrs); i++)
1564 synchronize_irq(ar_pci->pdev->irq + i);
1567 static void ath10k_pci_irq_enable(struct ath10k *ar)
1569 ath10k_ce_enable_interrupts(ar);
1570 ath10k_pci_enable_legacy_irq(ar);
1571 ath10k_pci_irq_msi_fw_unmask(ar);
1574 static int ath10k_pci_hif_start(struct ath10k *ar)
1576 struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
1578 ath10k_dbg(ar, ATH10K_DBG_BOOT, "boot hif start\n");
1580 ath10k_pci_irq_enable(ar);
1581 ath10k_pci_rx_post(ar);
1583 pcie_capability_write_word(ar_pci->pdev, PCI_EXP_LNKCTL,
1589 static void ath10k_pci_rx_pipe_cleanup(struct ath10k_pci_pipe *pci_pipe)
1592 struct ath10k_ce_pipe *ce_pipe;
1593 struct ath10k_ce_ring *ce_ring;
1594 struct sk_buff *skb;
1597 ar = pci_pipe->hif_ce_state;
1598 ce_pipe = pci_pipe->ce_hdl;
1599 ce_ring = ce_pipe->dest_ring;
1604 if (!pci_pipe->buf_sz)
1607 for (i = 0; i < ce_ring->nentries; i++) {
1608 skb = ce_ring->per_transfer_context[i];
1612 ce_ring->per_transfer_context[i] = NULL;
1614 dma_unmap_single(ar->dev, ATH10K_SKB_RXCB(skb)->paddr,
1615 skb->len + skb_tailroom(skb),
1617 dev_kfree_skb_any(skb);
1621 static void ath10k_pci_tx_pipe_cleanup(struct ath10k_pci_pipe *pci_pipe)
1624 struct ath10k_pci *ar_pci;
1625 struct ath10k_ce_pipe *ce_pipe;
1626 struct ath10k_ce_ring *ce_ring;
1627 struct ce_desc *ce_desc;
1628 struct sk_buff *skb;
1631 ar = pci_pipe->hif_ce_state;
1632 ar_pci = ath10k_pci_priv(ar);
1633 ce_pipe = pci_pipe->ce_hdl;
1634 ce_ring = ce_pipe->src_ring;
1639 if (!pci_pipe->buf_sz)
1642 ce_desc = ce_ring->shadow_base;
1643 if (WARN_ON(!ce_desc))
1646 for (i = 0; i < ce_ring->nentries; i++) {
1647 skb = ce_ring->per_transfer_context[i];
1651 ce_ring->per_transfer_context[i] = NULL;
1653 ath10k_htc_tx_completion_handler(ar, skb);
1658 * Cleanup residual buffers for device shutdown:
1659 * buffers that were enqueued for receive
1660 * buffers that were to be sent
1661 * Note: Buffers that had completed but which were
1662 * not yet processed are on a completion queue. They
1663 * are handled when the completion thread shuts down.
1665 static void ath10k_pci_buffer_cleanup(struct ath10k *ar)
1667 struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
1670 for (pipe_num = 0; pipe_num < CE_COUNT; pipe_num++) {
1671 struct ath10k_pci_pipe *pipe_info;
1673 pipe_info = &ar_pci->pipe_info[pipe_num];
1674 ath10k_pci_rx_pipe_cleanup(pipe_info);
1675 ath10k_pci_tx_pipe_cleanup(pipe_info);
1679 static void ath10k_pci_ce_deinit(struct ath10k *ar)
1683 for (i = 0; i < CE_COUNT; i++)
1684 ath10k_ce_deinit_pipe(ar, i);
1687 static void ath10k_pci_flush(struct ath10k *ar)
1689 ath10k_pci_kill_tasklet(ar);
1690 ath10k_pci_buffer_cleanup(ar);
1693 static void ath10k_pci_hif_stop(struct ath10k *ar)
1695 struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
1696 unsigned long flags;
1698 ath10k_dbg(ar, ATH10K_DBG_BOOT, "boot hif stop\n");
1700 /* Most likely the device has HTT Rx ring configured. The only way to
1701 * prevent the device from accessing (and possible corrupting) host
1702 * memory is to reset the chip now.
1704 * There's also no known way of masking MSI interrupts on the device.
1705 * For ranged MSI the CE-related interrupts can be masked. However
1706 * regardless how many MSI interrupts are assigned the first one
1707 * is always used for firmware indications (crashes) and cannot be
1708 * masked. To prevent the device from asserting the interrupt reset it
1709 * before proceeding with cleanup.
1711 ath10k_pci_safe_chip_reset(ar);
1713 ath10k_pci_irq_disable(ar);
1714 ath10k_pci_irq_sync(ar);
1715 ath10k_pci_flush(ar);
1717 spin_lock_irqsave(&ar_pci->ps_lock, flags);
1718 WARN_ON(ar_pci->ps_wake_refcount > 0);
1719 spin_unlock_irqrestore(&ar_pci->ps_lock, flags);
1722 static int ath10k_pci_hif_exchange_bmi_msg(struct ath10k *ar,
1723 void *req, u32 req_len,
1724 void *resp, u32 *resp_len)
1726 struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
1727 struct ath10k_pci_pipe *pci_tx = &ar_pci->pipe_info[BMI_CE_NUM_TO_TARG];
1728 struct ath10k_pci_pipe *pci_rx = &ar_pci->pipe_info[BMI_CE_NUM_TO_HOST];
1729 struct ath10k_ce_pipe *ce_tx = pci_tx->ce_hdl;
1730 struct ath10k_ce_pipe *ce_rx = pci_rx->ce_hdl;
1731 dma_addr_t req_paddr = 0;
1732 dma_addr_t resp_paddr = 0;
1733 struct bmi_xfer xfer = {};
1734 void *treq, *tresp = NULL;
1739 if (resp && !resp_len)
1742 if (resp && resp_len && *resp_len == 0)
1745 treq = kmemdup(req, req_len, GFP_KERNEL);
1749 req_paddr = dma_map_single(ar->dev, treq, req_len, DMA_TO_DEVICE);
1750 ret = dma_mapping_error(ar->dev, req_paddr);
1756 if (resp && resp_len) {
1757 tresp = kzalloc(*resp_len, GFP_KERNEL);
1763 resp_paddr = dma_map_single(ar->dev, tresp, *resp_len,
1765 ret = dma_mapping_error(ar->dev, resp_paddr);
1771 xfer.wait_for_resp = true;
1774 ath10k_ce_rx_post_buf(ce_rx, &xfer, resp_paddr);
1777 ret = ath10k_ce_send(ce_tx, &xfer, req_paddr, req_len, -1, 0);
1781 ret = ath10k_pci_bmi_wait(ce_tx, ce_rx, &xfer);
1784 unsigned int unused_nbytes;
1785 unsigned int unused_id;
1787 ath10k_ce_cancel_send_next(ce_tx, NULL, &unused_buffer,
1788 &unused_nbytes, &unused_id);
1790 /* non-zero means we did not time out */
1798 ath10k_ce_revoke_recv_next(ce_rx, NULL, &unused_buffer);
1799 dma_unmap_single(ar->dev, resp_paddr,
1800 *resp_len, DMA_FROM_DEVICE);
1803 dma_unmap_single(ar->dev, req_paddr, req_len, DMA_TO_DEVICE);
1805 if (ret == 0 && resp_len) {
1806 *resp_len = min(*resp_len, xfer.resp_len);
1807 memcpy(resp, tresp, xfer.resp_len);
1816 static void ath10k_pci_bmi_send_done(struct ath10k_ce_pipe *ce_state)
1818 struct bmi_xfer *xfer;
1820 unsigned int nbytes;
1821 unsigned int transfer_id;
1823 if (ath10k_ce_completed_send_next(ce_state, (void **)&xfer, &ce_data,
1824 &nbytes, &transfer_id))
1827 xfer->tx_done = true;
1830 static void ath10k_pci_bmi_recv_data(struct ath10k_ce_pipe *ce_state)
1832 struct ath10k *ar = ce_state->ar;
1833 struct bmi_xfer *xfer;
1835 unsigned int nbytes;
1836 unsigned int transfer_id;
1839 if (ath10k_ce_completed_recv_next(ce_state, (void **)&xfer, &ce_data,
1840 &nbytes, &transfer_id, &flags))
1843 if (WARN_ON_ONCE(!xfer))
1846 if (!xfer->wait_for_resp) {
1847 ath10k_warn(ar, "unexpected: BMI data received; ignoring\n");
1851 xfer->resp_len = nbytes;
1852 xfer->rx_done = true;
1855 static int ath10k_pci_bmi_wait(struct ath10k_ce_pipe *tx_pipe,
1856 struct ath10k_ce_pipe *rx_pipe,
1857 struct bmi_xfer *xfer)
1859 unsigned long timeout = jiffies + BMI_COMMUNICATION_TIMEOUT_HZ;
1861 while (time_before_eq(jiffies, timeout)) {
1862 ath10k_pci_bmi_send_done(tx_pipe);
1863 ath10k_pci_bmi_recv_data(rx_pipe);
1865 if (xfer->tx_done && (xfer->rx_done == xfer->wait_for_resp))
1875 * Send an interrupt to the device to wake up the Target CPU
1876 * so it has an opportunity to notice any changed state.
1878 static int ath10k_pci_wake_target_cpu(struct ath10k *ar)
1882 addr = SOC_CORE_BASE_ADDRESS | CORE_CTRL_ADDRESS;
1883 val = ath10k_pci_read32(ar, addr);
1884 val |= CORE_CTRL_CPU_INTR_MASK;
1885 ath10k_pci_write32(ar, addr, val);
1890 static int ath10k_pci_get_num_banks(struct ath10k *ar)
1892 struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
1894 switch (ar_pci->pdev->device) {
1895 case QCA988X_2_0_DEVICE_ID:
1896 case QCA99X0_2_0_DEVICE_ID:
1898 case QCA6164_2_1_DEVICE_ID:
1899 case QCA6174_2_1_DEVICE_ID:
1900 switch (MS(ar->chip_id, SOC_CHIP_ID_REV)) {
1901 case QCA6174_HW_1_0_CHIP_ID_REV:
1902 case QCA6174_HW_1_1_CHIP_ID_REV:
1903 case QCA6174_HW_2_1_CHIP_ID_REV:
1904 case QCA6174_HW_2_2_CHIP_ID_REV:
1906 case QCA6174_HW_1_3_CHIP_ID_REV:
1908 case QCA6174_HW_3_0_CHIP_ID_REV:
1909 case QCA6174_HW_3_1_CHIP_ID_REV:
1910 case QCA6174_HW_3_2_CHIP_ID_REV:
1916 ath10k_warn(ar, "unknown number of banks, assuming 1\n");
1920 static int ath10k_pci_init_config(struct ath10k *ar)
1922 u32 interconnect_targ_addr;
1923 u32 pcie_state_targ_addr = 0;
1924 u32 pipe_cfg_targ_addr = 0;
1925 u32 svc_to_pipe_map = 0;
1926 u32 pcie_config_flags = 0;
1928 u32 ealloc_targ_addr;
1930 u32 flag2_targ_addr;
1933 /* Download to Target the CE Config and the service-to-CE map */
1934 interconnect_targ_addr =
1935 host_interest_item_address(HI_ITEM(hi_interconnect_state));
1937 /* Supply Target-side CE configuration */
1938 ret = ath10k_pci_diag_read32(ar, interconnect_targ_addr,
1939 &pcie_state_targ_addr);
1941 ath10k_err(ar, "Failed to get pcie state addr: %d\n", ret);
1945 if (pcie_state_targ_addr == 0) {
1947 ath10k_err(ar, "Invalid pcie state addr\n");
1951 ret = ath10k_pci_diag_read32(ar, (pcie_state_targ_addr +
1952 offsetof(struct pcie_state,
1954 &pipe_cfg_targ_addr);
1956 ath10k_err(ar, "Failed to get pipe cfg addr: %d\n", ret);
1960 if (pipe_cfg_targ_addr == 0) {
1962 ath10k_err(ar, "Invalid pipe cfg addr\n");
1966 ret = ath10k_pci_diag_write_mem(ar, pipe_cfg_targ_addr,
1967 target_ce_config_wlan,
1968 sizeof(struct ce_pipe_config) *
1969 NUM_TARGET_CE_CONFIG_WLAN);
1972 ath10k_err(ar, "Failed to write pipe cfg: %d\n", ret);
1976 ret = ath10k_pci_diag_read32(ar, (pcie_state_targ_addr +
1977 offsetof(struct pcie_state,
1981 ath10k_err(ar, "Failed to get svc/pipe map: %d\n", ret);
1985 if (svc_to_pipe_map == 0) {
1987 ath10k_err(ar, "Invalid svc_to_pipe map\n");
1991 ret = ath10k_pci_diag_write_mem(ar, svc_to_pipe_map,
1992 target_service_to_ce_map_wlan,
1993 sizeof(target_service_to_ce_map_wlan));
1995 ath10k_err(ar, "Failed to write svc/pipe map: %d\n", ret);
1999 ret = ath10k_pci_diag_read32(ar, (pcie_state_targ_addr +
2000 offsetof(struct pcie_state,
2002 &pcie_config_flags);
2004 ath10k_err(ar, "Failed to get pcie config_flags: %d\n", ret);
2008 pcie_config_flags &= ~PCIE_CONFIG_FLAG_ENABLE_L1;
2010 ret = ath10k_pci_diag_write32(ar, (pcie_state_targ_addr +
2011 offsetof(struct pcie_state,
2015 ath10k_err(ar, "Failed to write pcie config_flags: %d\n", ret);
2019 /* configure early allocation */
2020 ealloc_targ_addr = host_interest_item_address(HI_ITEM(hi_early_alloc));
2022 ret = ath10k_pci_diag_read32(ar, ealloc_targ_addr, &ealloc_value);
2024 ath10k_err(ar, "Faile to get early alloc val: %d\n", ret);
2028 /* first bank is switched to IRAM */
2029 ealloc_value |= ((HI_EARLY_ALLOC_MAGIC << HI_EARLY_ALLOC_MAGIC_SHIFT) &
2030 HI_EARLY_ALLOC_MAGIC_MASK);
2031 ealloc_value |= ((ath10k_pci_get_num_banks(ar) <<
2032 HI_EARLY_ALLOC_IRAM_BANKS_SHIFT) &
2033 HI_EARLY_ALLOC_IRAM_BANKS_MASK);
2035 ret = ath10k_pci_diag_write32(ar, ealloc_targ_addr, ealloc_value);
2037 ath10k_err(ar, "Failed to set early alloc val: %d\n", ret);
2041 /* Tell Target to proceed with initialization */
2042 flag2_targ_addr = host_interest_item_address(HI_ITEM(hi_option_flag2));
2044 ret = ath10k_pci_diag_read32(ar, flag2_targ_addr, &flag2_value);
2046 ath10k_err(ar, "Failed to get option val: %d\n", ret);
2050 flag2_value |= HI_OPTION_EARLY_CFG_DONE;
2052 ret = ath10k_pci_diag_write32(ar, flag2_targ_addr, flag2_value);
2054 ath10k_err(ar, "Failed to set option val: %d\n", ret);
2061 static int ath10k_pci_alloc_pipes(struct ath10k *ar)
2063 struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
2064 struct ath10k_pci_pipe *pipe;
2067 for (i = 0; i < CE_COUNT; i++) {
2068 pipe = &ar_pci->pipe_info[i];
2069 pipe->ce_hdl = &ar_pci->ce_states[i];
2071 pipe->hif_ce_state = ar;
2073 ret = ath10k_ce_alloc_pipe(ar, i, &host_ce_config_wlan[i]);
2075 ath10k_err(ar, "failed to allocate copy engine pipe %d: %d\n",
2080 /* Last CE is Diagnostic Window */
2081 if (i == CE_DIAG_PIPE) {
2082 ar_pci->ce_diag = pipe->ce_hdl;
2086 pipe->buf_sz = (size_t)(host_ce_config_wlan[i].src_sz_max);
2092 static void ath10k_pci_free_pipes(struct ath10k *ar)
2096 for (i = 0; i < CE_COUNT; i++)
2097 ath10k_ce_free_pipe(ar, i);
2100 static int ath10k_pci_init_pipes(struct ath10k *ar)
2104 for (i = 0; i < CE_COUNT; i++) {
2105 ret = ath10k_ce_init_pipe(ar, i, &host_ce_config_wlan[i]);
2107 ath10k_err(ar, "failed to initialize copy engine pipe %d: %d\n",
2116 static bool ath10k_pci_has_fw_crashed(struct ath10k *ar)
2118 return ath10k_pci_read32(ar, FW_INDICATOR_ADDRESS) &
2119 FW_IND_EVENT_PENDING;
2122 static void ath10k_pci_fw_crashed_clear(struct ath10k *ar)
2126 val = ath10k_pci_read32(ar, FW_INDICATOR_ADDRESS);
2127 val &= ~FW_IND_EVENT_PENDING;
2128 ath10k_pci_write32(ar, FW_INDICATOR_ADDRESS, val);
2131 /* this function effectively clears target memory controller assert line */
2132 static void ath10k_pci_warm_reset_si0(struct ath10k *ar)
2136 val = ath10k_pci_soc_read32(ar, SOC_RESET_CONTROL_ADDRESS);
2137 ath10k_pci_soc_write32(ar, SOC_RESET_CONTROL_ADDRESS,
2138 val | SOC_RESET_CONTROL_SI0_RST_MASK);
2139 val = ath10k_pci_soc_read32(ar, SOC_RESET_CONTROL_ADDRESS);
2143 val = ath10k_pci_soc_read32(ar, SOC_RESET_CONTROL_ADDRESS);
2144 ath10k_pci_soc_write32(ar, SOC_RESET_CONTROL_ADDRESS,
2145 val & ~SOC_RESET_CONTROL_SI0_RST_MASK);
2146 val = ath10k_pci_soc_read32(ar, SOC_RESET_CONTROL_ADDRESS);
2151 static void ath10k_pci_warm_reset_cpu(struct ath10k *ar)
2155 ath10k_pci_write32(ar, FW_INDICATOR_ADDRESS, 0);
2157 val = ath10k_pci_read32(ar, RTC_SOC_BASE_ADDRESS +
2158 SOC_RESET_CONTROL_ADDRESS);
2159 ath10k_pci_write32(ar, RTC_SOC_BASE_ADDRESS + SOC_RESET_CONTROL_ADDRESS,
2160 val | SOC_RESET_CONTROL_CPU_WARM_RST_MASK);
2163 static void ath10k_pci_warm_reset_ce(struct ath10k *ar)
2167 val = ath10k_pci_read32(ar, RTC_SOC_BASE_ADDRESS +
2168 SOC_RESET_CONTROL_ADDRESS);
2170 ath10k_pci_write32(ar, RTC_SOC_BASE_ADDRESS + SOC_RESET_CONTROL_ADDRESS,
2171 val | SOC_RESET_CONTROL_CE_RST_MASK);
2173 ath10k_pci_write32(ar, RTC_SOC_BASE_ADDRESS + SOC_RESET_CONTROL_ADDRESS,
2174 val & ~SOC_RESET_CONTROL_CE_RST_MASK);
2177 static void ath10k_pci_warm_reset_clear_lf(struct ath10k *ar)
2181 val = ath10k_pci_read32(ar, RTC_SOC_BASE_ADDRESS +
2182 SOC_LF_TIMER_CONTROL0_ADDRESS);
2183 ath10k_pci_write32(ar, RTC_SOC_BASE_ADDRESS +
2184 SOC_LF_TIMER_CONTROL0_ADDRESS,
2185 val & ~SOC_LF_TIMER_CONTROL0_ENABLE_MASK);
2188 static int ath10k_pci_warm_reset(struct ath10k *ar)
2192 ath10k_dbg(ar, ATH10K_DBG_BOOT, "boot warm reset\n");
2194 spin_lock_bh(&ar->data_lock);
2195 ar->stats.fw_warm_reset_counter++;
2196 spin_unlock_bh(&ar->data_lock);
2198 ath10k_pci_irq_disable(ar);
2200 /* Make sure the target CPU is not doing anything dangerous, e.g. if it
2201 * were to access copy engine while host performs copy engine reset
2202 * then it is possible for the device to confuse pci-e controller to
2203 * the point of bringing host system to a complete stop (i.e. hang).
2205 ath10k_pci_warm_reset_si0(ar);
2206 ath10k_pci_warm_reset_cpu(ar);
2207 ath10k_pci_init_pipes(ar);
2208 ath10k_pci_wait_for_target_init(ar);
2210 ath10k_pci_warm_reset_clear_lf(ar);
2211 ath10k_pci_warm_reset_ce(ar);
2212 ath10k_pci_warm_reset_cpu(ar);
2213 ath10k_pci_init_pipes(ar);
2215 ret = ath10k_pci_wait_for_target_init(ar);
2217 ath10k_warn(ar, "failed to wait for target init: %d\n", ret);
2221 ath10k_dbg(ar, ATH10K_DBG_BOOT, "boot warm reset complete\n");
2226 static int ath10k_pci_safe_chip_reset(struct ath10k *ar)
2228 if (QCA_REV_988X(ar) || QCA_REV_6174(ar)) {
2229 return ath10k_pci_warm_reset(ar);
2230 } else if (QCA_REV_99X0(ar)) {
2231 ath10k_pci_irq_disable(ar);
2232 return ath10k_pci_qca99x0_chip_reset(ar);
2238 static int ath10k_pci_qca988x_chip_reset(struct ath10k *ar)
2243 ath10k_dbg(ar, ATH10K_DBG_BOOT, "boot 988x chip reset\n");
2245 /* Some hardware revisions (e.g. CUS223v2) has issues with cold reset.
2246 * It is thus preferred to use warm reset which is safer but may not be
2247 * able to recover the device from all possible fail scenarios.
2249 * Warm reset doesn't always work on first try so attempt it a few
2250 * times before giving up.
2252 for (i = 0; i < ATH10K_PCI_NUM_WARM_RESET_ATTEMPTS; i++) {
2253 ret = ath10k_pci_warm_reset(ar);
2255 ath10k_warn(ar, "failed to warm reset attempt %d of %d: %d\n",
2256 i + 1, ATH10K_PCI_NUM_WARM_RESET_ATTEMPTS,
2261 /* FIXME: Sometimes copy engine doesn't recover after warm
2262 * reset. In most cases this needs cold reset. In some of these
2263 * cases the device is in such a state that a cold reset may
2266 * Reading any host interest register via copy engine is
2267 * sufficient to verify if device is capable of booting
2270 ret = ath10k_pci_init_pipes(ar);
2272 ath10k_warn(ar, "failed to init copy engine: %d\n",
2277 ret = ath10k_pci_diag_read32(ar, QCA988X_HOST_INTEREST_ADDRESS,
2280 ath10k_warn(ar, "failed to poke copy engine: %d\n",
2285 ath10k_dbg(ar, ATH10K_DBG_BOOT, "boot chip reset complete (warm)\n");
2289 if (ath10k_pci_reset_mode == ATH10K_PCI_RESET_WARM_ONLY) {
2290 ath10k_warn(ar, "refusing cold reset as requested\n");
2294 ret = ath10k_pci_cold_reset(ar);
2296 ath10k_warn(ar, "failed to cold reset: %d\n", ret);
2300 ret = ath10k_pci_wait_for_target_init(ar);
2302 ath10k_warn(ar, "failed to wait for target after cold reset: %d\n",
2307 ath10k_dbg(ar, ATH10K_DBG_BOOT, "boot qca988x chip reset complete (cold)\n");
2312 static int ath10k_pci_qca6174_chip_reset(struct ath10k *ar)
2316 ath10k_dbg(ar, ATH10K_DBG_BOOT, "boot qca6174 chip reset\n");
2318 /* FIXME: QCA6174 requires cold + warm reset to work. */
2320 ret = ath10k_pci_cold_reset(ar);
2322 ath10k_warn(ar, "failed to cold reset: %d\n", ret);
2326 ret = ath10k_pci_wait_for_target_init(ar);
2328 ath10k_warn(ar, "failed to wait for target after cold reset: %d\n",
2333 ret = ath10k_pci_warm_reset(ar);
2335 ath10k_warn(ar, "failed to warm reset: %d\n", ret);
2339 ath10k_dbg(ar, ATH10K_DBG_BOOT, "boot qca6174 chip reset complete (cold)\n");
2344 static int ath10k_pci_qca99x0_chip_reset(struct ath10k *ar)
2348 ath10k_dbg(ar, ATH10K_DBG_BOOT, "boot qca99x0 chip reset\n");
2350 ret = ath10k_pci_cold_reset(ar);
2352 ath10k_warn(ar, "failed to cold reset: %d\n", ret);
2356 ret = ath10k_pci_wait_for_target_init(ar);
2358 ath10k_warn(ar, "failed to wait for target after cold reset: %d\n",
2363 ath10k_dbg(ar, ATH10K_DBG_BOOT, "boot qca99x0 chip reset complete (cold)\n");
2368 static int ath10k_pci_chip_reset(struct ath10k *ar)
2370 if (QCA_REV_988X(ar))
2371 return ath10k_pci_qca988x_chip_reset(ar);
2372 else if (QCA_REV_6174(ar))
2373 return ath10k_pci_qca6174_chip_reset(ar);
2374 else if (QCA_REV_99X0(ar))
2375 return ath10k_pci_qca99x0_chip_reset(ar);
2380 static int ath10k_pci_hif_power_up(struct ath10k *ar)
2382 struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
2385 ath10k_dbg(ar, ATH10K_DBG_BOOT, "boot hif power up\n");
2387 pcie_capability_read_word(ar_pci->pdev, PCI_EXP_LNKCTL,
2389 pcie_capability_write_word(ar_pci->pdev, PCI_EXP_LNKCTL,
2390 ar_pci->link_ctl & ~PCI_EXP_LNKCTL_ASPMC);
2393 * Bring the target up cleanly.
2395 * The target may be in an undefined state with an AUX-powered Target
2396 * and a Host in WoW mode. If the Host crashes, loses power, or is
2397 * restarted (without unloading the driver) then the Target is left
2398 * (aux) powered and running. On a subsequent driver load, the Target
2399 * is in an unexpected state. We try to catch that here in order to
2400 * reset the Target and retry the probe.
2402 ret = ath10k_pci_chip_reset(ar);
2404 if (ath10k_pci_has_fw_crashed(ar)) {
2405 ath10k_warn(ar, "firmware crashed during chip reset\n");
2406 ath10k_pci_fw_crashed_clear(ar);
2407 ath10k_pci_fw_crashed_dump(ar);
2410 ath10k_err(ar, "failed to reset chip: %d\n", ret);
2414 ret = ath10k_pci_init_pipes(ar);
2416 ath10k_err(ar, "failed to initialize CE: %d\n", ret);
2420 ret = ath10k_pci_init_config(ar);
2422 ath10k_err(ar, "failed to setup init config: %d\n", ret);
2426 ret = ath10k_pci_wake_target_cpu(ar);
2428 ath10k_err(ar, "could not wake up target CPU: %d\n", ret);
2435 ath10k_pci_ce_deinit(ar);
2441 static void ath10k_pci_hif_power_down(struct ath10k *ar)
2443 ath10k_dbg(ar, ATH10K_DBG_BOOT, "boot hif power down\n");
2445 /* Currently hif_power_up performs effectively a reset and hif_stop
2446 * resets the chip as well so there's no point in resetting here.
2452 static int ath10k_pci_hif_suspend(struct ath10k *ar)
2454 /* The grace timer can still be counting down and ar->ps_awake be true.
2455 * It is known that the device may be asleep after resuming regardless
2456 * of the SoC powersave state before suspending. Hence make sure the
2457 * device is asleep before proceeding.
2459 ath10k_pci_sleep_sync(ar);
2464 static int ath10k_pci_hif_resume(struct ath10k *ar)
2466 struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
2467 struct pci_dev *pdev = ar_pci->pdev;
2471 if (ar_pci->pci_ps == 0) {
2472 ret = ath10k_pci_force_wake(ar);
2474 ath10k_err(ar, "failed to wake up target: %d\n", ret);
2479 /* Suspend/Resume resets the PCI configuration space, so we have to
2480 * re-disable the RETRY_TIMEOUT register (0x41) to keep PCI Tx retries
2481 * from interfering with C3 CPU state. pci_restore_state won't help
2482 * here since it only restores the first 64 bytes pci config header.
2484 pci_read_config_dword(pdev, 0x40, &val);
2485 if ((val & 0x0000ff00) != 0)
2486 pci_write_config_dword(pdev, 0x40, val & 0xffff00ff);
2492 static const struct ath10k_hif_ops ath10k_pci_hif_ops = {
2493 .tx_sg = ath10k_pci_hif_tx_sg,
2494 .diag_read = ath10k_pci_hif_diag_read,
2495 .diag_write = ath10k_pci_diag_write_mem,
2496 .exchange_bmi_msg = ath10k_pci_hif_exchange_bmi_msg,
2497 .start = ath10k_pci_hif_start,
2498 .stop = ath10k_pci_hif_stop,
2499 .map_service_to_pipe = ath10k_pci_hif_map_service_to_pipe,
2500 .get_default_pipe = ath10k_pci_hif_get_default_pipe,
2501 .send_complete_check = ath10k_pci_hif_send_complete_check,
2502 .get_free_queue_number = ath10k_pci_hif_get_free_queue_number,
2503 .power_up = ath10k_pci_hif_power_up,
2504 .power_down = ath10k_pci_hif_power_down,
2505 .read32 = ath10k_pci_read32,
2506 .write32 = ath10k_pci_write32,
2508 .suspend = ath10k_pci_hif_suspend,
2509 .resume = ath10k_pci_hif_resume,
2513 static void ath10k_pci_ce_tasklet(unsigned long ptr)
2515 struct ath10k_pci_pipe *pipe = (struct ath10k_pci_pipe *)ptr;
2516 struct ath10k_pci *ar_pci = pipe->ar_pci;
2518 ath10k_ce_per_engine_service(ar_pci->ar, pipe->pipe_num);
2521 static void ath10k_msi_err_tasklet(unsigned long data)
2523 struct ath10k *ar = (struct ath10k *)data;
2525 if (!ath10k_pci_has_fw_crashed(ar)) {
2526 ath10k_warn(ar, "received unsolicited fw crash interrupt\n");
2530 ath10k_pci_irq_disable(ar);
2531 ath10k_pci_fw_crashed_clear(ar);
2532 ath10k_pci_fw_crashed_dump(ar);
2536 * Handler for a per-engine interrupt on a PARTICULAR CE.
2537 * This is used in cases where each CE has a private MSI interrupt.
2539 static irqreturn_t ath10k_pci_per_engine_handler(int irq, void *arg)
2541 struct ath10k *ar = arg;
2542 struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
2543 int ce_id = irq - ar_pci->pdev->irq - MSI_ASSIGN_CE_INITIAL;
2545 if (ce_id < 0 || ce_id >= ARRAY_SIZE(ar_pci->pipe_info)) {
2546 ath10k_warn(ar, "unexpected/invalid irq %d ce_id %d\n", irq,
2552 * NOTE: We are able to derive ce_id from irq because we
2553 * use a one-to-one mapping for CE's 0..5.
2554 * CE's 6 & 7 do not use interrupts at all.
2556 * This mapping must be kept in sync with the mapping
2559 tasklet_schedule(&ar_pci->pipe_info[ce_id].intr);
2563 static irqreturn_t ath10k_pci_msi_fw_handler(int irq, void *arg)
2565 struct ath10k *ar = arg;
2566 struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
2568 tasklet_schedule(&ar_pci->msi_fw_err);
2573 * Top-level interrupt handler for all PCI interrupts from a Target.
2574 * When a block of MSI interrupts is allocated, this top-level handler
2575 * is not used; instead, we directly call the correct sub-handler.
2577 static irqreturn_t ath10k_pci_interrupt_handler(int irq, void *arg)
2579 struct ath10k *ar = arg;
2580 struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
2583 if (ar_pci->pci_ps == 0) {
2584 ret = ath10k_pci_force_wake(ar);
2586 ath10k_warn(ar, "failed to wake device up on irq: %d\n",
2592 if (ar_pci->num_msi_intrs == 0) {
2593 if (!ath10k_pci_irq_pending(ar))
2596 ath10k_pci_disable_and_clear_legacy_irq(ar);
2599 tasklet_schedule(&ar_pci->intr_tq);
2604 static void ath10k_pci_tasklet(unsigned long data)
2606 struct ath10k *ar = (struct ath10k *)data;
2607 struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
2609 if (ath10k_pci_has_fw_crashed(ar)) {
2610 ath10k_pci_irq_disable(ar);
2611 ath10k_pci_fw_crashed_clear(ar);
2612 ath10k_pci_fw_crashed_dump(ar);
2616 ath10k_ce_per_engine_service_any(ar);
2618 /* Re-enable legacy irq that was disabled in the irq handler */
2619 if (ar_pci->num_msi_intrs == 0)
2620 ath10k_pci_enable_legacy_irq(ar);
2623 static int ath10k_pci_request_irq_msix(struct ath10k *ar)
2625 struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
2628 ret = request_irq(ar_pci->pdev->irq + MSI_ASSIGN_FW,
2629 ath10k_pci_msi_fw_handler,
2630 IRQF_SHARED, "ath10k_pci", ar);
2632 ath10k_warn(ar, "failed to request MSI-X fw irq %d: %d\n",
2633 ar_pci->pdev->irq + MSI_ASSIGN_FW, ret);
2637 for (i = MSI_ASSIGN_CE_INITIAL; i <= MSI_ASSIGN_CE_MAX; i++) {
2638 ret = request_irq(ar_pci->pdev->irq + i,
2639 ath10k_pci_per_engine_handler,
2640 IRQF_SHARED, "ath10k_pci", ar);
2642 ath10k_warn(ar, "failed to request MSI-X ce irq %d: %d\n",
2643 ar_pci->pdev->irq + i, ret);
2645 for (i--; i >= MSI_ASSIGN_CE_INITIAL; i--)
2646 free_irq(ar_pci->pdev->irq + i, ar);
2648 free_irq(ar_pci->pdev->irq + MSI_ASSIGN_FW, ar);
2656 static int ath10k_pci_request_irq_msi(struct ath10k *ar)
2658 struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
2661 ret = request_irq(ar_pci->pdev->irq,
2662 ath10k_pci_interrupt_handler,
2663 IRQF_SHARED, "ath10k_pci", ar);
2665 ath10k_warn(ar, "failed to request MSI irq %d: %d\n",
2666 ar_pci->pdev->irq, ret);
2673 static int ath10k_pci_request_irq_legacy(struct ath10k *ar)
2675 struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
2678 ret = request_irq(ar_pci->pdev->irq,
2679 ath10k_pci_interrupt_handler,
2680 IRQF_SHARED, "ath10k_pci", ar);
2682 ath10k_warn(ar, "failed to request legacy irq %d: %d\n",
2683 ar_pci->pdev->irq, ret);
2690 static int ath10k_pci_request_irq(struct ath10k *ar)
2692 struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
2694 switch (ar_pci->num_msi_intrs) {
2696 return ath10k_pci_request_irq_legacy(ar);
2698 return ath10k_pci_request_irq_msi(ar);
2700 return ath10k_pci_request_irq_msix(ar);
2704 static void ath10k_pci_free_irq(struct ath10k *ar)
2706 struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
2709 /* There's at least one interrupt irregardless whether its legacy INTR
2710 * or MSI or MSI-X */
2711 for (i = 0; i < max(1, ar_pci->num_msi_intrs); i++)
2712 free_irq(ar_pci->pdev->irq + i, ar);
2715 static void ath10k_pci_init_irq_tasklets(struct ath10k *ar)
2717 struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
2720 tasklet_init(&ar_pci->intr_tq, ath10k_pci_tasklet, (unsigned long)ar);
2721 tasklet_init(&ar_pci->msi_fw_err, ath10k_msi_err_tasklet,
2724 for (i = 0; i < CE_COUNT; i++) {
2725 ar_pci->pipe_info[i].ar_pci = ar_pci;
2726 tasklet_init(&ar_pci->pipe_info[i].intr, ath10k_pci_ce_tasklet,
2727 (unsigned long)&ar_pci->pipe_info[i]);
2731 static int ath10k_pci_init_irq(struct ath10k *ar)
2733 struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
2736 ath10k_pci_init_irq_tasklets(ar);
2738 if (ath10k_pci_irq_mode != ATH10K_PCI_IRQ_AUTO)
2739 ath10k_info(ar, "limiting irq mode to: %d\n",
2740 ath10k_pci_irq_mode);
2743 if (ath10k_pci_irq_mode == ATH10K_PCI_IRQ_AUTO) {
2744 ar_pci->num_msi_intrs = MSI_ASSIGN_CE_MAX + 1;
2745 ret = pci_enable_msi_range(ar_pci->pdev, ar_pci->num_msi_intrs,
2746 ar_pci->num_msi_intrs);
2754 if (ath10k_pci_irq_mode != ATH10K_PCI_IRQ_LEGACY) {
2755 ar_pci->num_msi_intrs = 1;
2756 ret = pci_enable_msi(ar_pci->pdev);
2765 * A potential race occurs here: The CORE_BASE write
2766 * depends on target correctly decoding AXI address but
2767 * host won't know when target writes BAR to CORE_CTRL.
2768 * This write might get lost if target has NOT written BAR.
2769 * For now, fix the race by repeating the write in below
2770 * synchronization checking. */
2771 ar_pci->num_msi_intrs = 0;
2773 ath10k_pci_write32(ar, SOC_CORE_BASE_ADDRESS + PCIE_INTR_ENABLE_ADDRESS,
2774 PCIE_INTR_FIRMWARE_MASK | PCIE_INTR_CE_MASK_ALL);
2779 static void ath10k_pci_deinit_irq_legacy(struct ath10k *ar)
2781 ath10k_pci_write32(ar, SOC_CORE_BASE_ADDRESS + PCIE_INTR_ENABLE_ADDRESS,
2785 static int ath10k_pci_deinit_irq(struct ath10k *ar)
2787 struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
2789 switch (ar_pci->num_msi_intrs) {
2791 ath10k_pci_deinit_irq_legacy(ar);
2794 pci_disable_msi(ar_pci->pdev);
2801 static int ath10k_pci_wait_for_target_init(struct ath10k *ar)
2803 struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
2804 unsigned long timeout;
2807 ath10k_dbg(ar, ATH10K_DBG_BOOT, "boot waiting target to initialise\n");
2809 timeout = jiffies + msecs_to_jiffies(ATH10K_PCI_TARGET_WAIT);
2812 val = ath10k_pci_read32(ar, FW_INDICATOR_ADDRESS);
2814 ath10k_dbg(ar, ATH10K_DBG_BOOT, "boot target indicator %x\n",
2817 /* target should never return this */
2818 if (val == 0xffffffff)
2821 /* the device has crashed so don't bother trying anymore */
2822 if (val & FW_IND_EVENT_PENDING)
2825 if (val & FW_IND_INITIALIZED)
2828 if (ar_pci->num_msi_intrs == 0)
2829 /* Fix potential race by repeating CORE_BASE writes */
2830 ath10k_pci_enable_legacy_irq(ar);
2833 } while (time_before(jiffies, timeout));
2835 ath10k_pci_disable_and_clear_legacy_irq(ar);
2836 ath10k_pci_irq_msi_fw_mask(ar);
2838 if (val == 0xffffffff) {
2839 ath10k_err(ar, "failed to read device register, device is gone\n");
2843 if (val & FW_IND_EVENT_PENDING) {
2844 ath10k_warn(ar, "device has crashed during init\n");
2848 if (!(val & FW_IND_INITIALIZED)) {
2849 ath10k_err(ar, "failed to receive initialized event from target: %08x\n",
2854 ath10k_dbg(ar, ATH10K_DBG_BOOT, "boot target initialised\n");
2858 static int ath10k_pci_cold_reset(struct ath10k *ar)
2862 ath10k_dbg(ar, ATH10K_DBG_BOOT, "boot cold reset\n");
2864 spin_lock_bh(&ar->data_lock);
2866 ar->stats.fw_cold_reset_counter++;
2868 spin_unlock_bh(&ar->data_lock);
2870 /* Put Target, including PCIe, into RESET. */
2871 val = ath10k_pci_reg_read32(ar, SOC_GLOBAL_RESET_ADDRESS);
2873 ath10k_pci_reg_write32(ar, SOC_GLOBAL_RESET_ADDRESS, val);
2875 /* After writing into SOC_GLOBAL_RESET to put device into
2876 * reset and pulling out of reset pcie may not be stable
2877 * for any immediate pcie register access and cause bus error,
2878 * add delay before any pcie access request to fix this issue.
2882 /* Pull Target, including PCIe, out of RESET. */
2884 ath10k_pci_reg_write32(ar, SOC_GLOBAL_RESET_ADDRESS, val);
2888 ath10k_dbg(ar, ATH10K_DBG_BOOT, "boot cold reset complete\n");
2893 static int ath10k_pci_claim(struct ath10k *ar)
2895 struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
2896 struct pci_dev *pdev = ar_pci->pdev;
2899 pci_set_drvdata(pdev, ar);
2901 ret = pci_enable_device(pdev);
2903 ath10k_err(ar, "failed to enable pci device: %d\n", ret);
2907 ret = pci_request_region(pdev, BAR_NUM, "ath");
2909 ath10k_err(ar, "failed to request region BAR%d: %d\n", BAR_NUM,
2914 /* Target expects 32 bit DMA. Enforce it. */
2915 ret = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
2917 ath10k_err(ar, "failed to set dma mask to 32-bit: %d\n", ret);
2921 ret = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
2923 ath10k_err(ar, "failed to set consistent dma mask to 32-bit: %d\n",
2928 pci_set_master(pdev);
2930 /* Arrange for access to Target SoC registers. */
2931 ar_pci->mem_len = pci_resource_len(pdev, BAR_NUM);
2932 ar_pci->mem = pci_iomap(pdev, BAR_NUM, 0);
2934 ath10k_err(ar, "failed to iomap BAR%d\n", BAR_NUM);
2939 ath10k_dbg(ar, ATH10K_DBG_BOOT, "boot pci_mem 0x%p\n", ar_pci->mem);
2943 pci_clear_master(pdev);
2946 pci_release_region(pdev, BAR_NUM);
2949 pci_disable_device(pdev);
2954 static void ath10k_pci_release(struct ath10k *ar)
2956 struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
2957 struct pci_dev *pdev = ar_pci->pdev;
2959 pci_iounmap(pdev, ar_pci->mem);
2960 pci_release_region(pdev, BAR_NUM);
2961 pci_clear_master(pdev);
2962 pci_disable_device(pdev);
2965 static bool ath10k_pci_chip_is_supported(u32 dev_id, u32 chip_id)
2967 const struct ath10k_pci_supp_chip *supp_chip;
2969 u32 rev_id = MS(chip_id, SOC_CHIP_ID_REV);
2971 for (i = 0; i < ARRAY_SIZE(ath10k_pci_supp_chips); i++) {
2972 supp_chip = &ath10k_pci_supp_chips[i];
2974 if (supp_chip->dev_id == dev_id &&
2975 supp_chip->rev_id == rev_id)
2982 static int ath10k_pci_probe(struct pci_dev *pdev,
2983 const struct pci_device_id *pci_dev)
2987 struct ath10k_pci *ar_pci;
2988 enum ath10k_hw_rev hw_rev;
2992 switch (pci_dev->device) {
2993 case QCA988X_2_0_DEVICE_ID:
2994 hw_rev = ATH10K_HW_QCA988X;
2997 case QCA6164_2_1_DEVICE_ID:
2998 case QCA6174_2_1_DEVICE_ID:
2999 hw_rev = ATH10K_HW_QCA6174;
3002 case QCA99X0_2_0_DEVICE_ID:
3003 hw_rev = ATH10K_HW_QCA99X0;
3011 ar = ath10k_core_create(sizeof(*ar_pci), &pdev->dev, ATH10K_BUS_PCI,
3012 hw_rev, &ath10k_pci_hif_ops);
3014 dev_err(&pdev->dev, "failed to allocate core\n");
3018 ath10k_dbg(ar, ATH10K_DBG_BOOT, "pci probe %04x:%04x %04x:%04x\n",
3019 pdev->vendor, pdev->device,
3020 pdev->subsystem_vendor, pdev->subsystem_device);
3022 ar_pci = ath10k_pci_priv(ar);
3023 ar_pci->pdev = pdev;
3024 ar_pci->dev = &pdev->dev;
3026 ar->dev_id = pci_dev->device;
3027 ar_pci->pci_ps = pci_ps;
3029 ar->id.vendor = pdev->vendor;
3030 ar->id.device = pdev->device;
3031 ar->id.subsystem_vendor = pdev->subsystem_vendor;
3032 ar->id.subsystem_device = pdev->subsystem_device;
3034 spin_lock_init(&ar_pci->ce_lock);
3035 spin_lock_init(&ar_pci->ps_lock);
3037 setup_timer(&ar_pci->rx_post_retry, ath10k_pci_rx_replenish_retry,
3039 setup_timer(&ar_pci->ps_timer, ath10k_pci_ps_timer,
3042 ret = ath10k_pci_claim(ar);
3044 ath10k_err(ar, "failed to claim device: %d\n", ret);
3045 goto err_core_destroy;
3048 ret = ath10k_pci_alloc_pipes(ar);
3050 ath10k_err(ar, "failed to allocate copy engine pipes: %d\n",
3055 ath10k_pci_ce_deinit(ar);
3056 ath10k_pci_irq_disable(ar);
3058 if (ar_pci->pci_ps == 0) {
3059 ret = ath10k_pci_force_wake(ar);
3061 ath10k_warn(ar, "failed to wake up device : %d\n", ret);
3062 goto err_free_pipes;
3066 ret = ath10k_pci_init_irq(ar);
3068 ath10k_err(ar, "failed to init irqs: %d\n", ret);
3069 goto err_free_pipes;
3072 ath10k_info(ar, "pci irq %s interrupts %d irq_mode %d reset_mode %d\n",
3073 ath10k_pci_get_irq_method(ar), ar_pci->num_msi_intrs,
3074 ath10k_pci_irq_mode, ath10k_pci_reset_mode);
3076 ret = ath10k_pci_request_irq(ar);
3078 ath10k_warn(ar, "failed to request irqs: %d\n", ret);
3079 goto err_deinit_irq;
3082 ret = ath10k_pci_chip_reset(ar);
3084 ath10k_err(ar, "failed to reset chip: %d\n", ret);
3088 chip_id = ath10k_pci_soc_read32(ar, SOC_CHIP_ID_ADDRESS);
3089 if (chip_id == 0xffffffff) {
3090 ath10k_err(ar, "failed to get chip id\n");
3094 if (!ath10k_pci_chip_is_supported(pdev->device, chip_id)) {
3095 ath10k_err(ar, "device %04x with chip_id %08x isn't supported\n",
3096 pdev->device, chip_id);
3100 ret = ath10k_core_register(ar, chip_id);
3102 ath10k_err(ar, "failed to register driver core: %d\n", ret);
3109 ath10k_pci_free_irq(ar);
3110 ath10k_pci_kill_tasklet(ar);
3113 ath10k_pci_deinit_irq(ar);
3116 ath10k_pci_free_pipes(ar);
3119 ath10k_pci_sleep_sync(ar);
3120 ath10k_pci_release(ar);
3123 ath10k_core_destroy(ar);
3128 static void ath10k_pci_remove(struct pci_dev *pdev)
3130 struct ath10k *ar = pci_get_drvdata(pdev);
3131 struct ath10k_pci *ar_pci;
3133 ath10k_dbg(ar, ATH10K_DBG_PCI, "pci remove\n");
3138 ar_pci = ath10k_pci_priv(ar);
3143 ath10k_core_unregister(ar);
3144 ath10k_pci_free_irq(ar);
3145 ath10k_pci_kill_tasklet(ar);
3146 ath10k_pci_deinit_irq(ar);
3147 ath10k_pci_ce_deinit(ar);
3148 ath10k_pci_free_pipes(ar);
3149 ath10k_pci_sleep_sync(ar);
3150 ath10k_pci_release(ar);
3151 ath10k_core_destroy(ar);
3154 MODULE_DEVICE_TABLE(pci, ath10k_pci_id_table);
3156 static struct pci_driver ath10k_pci_driver = {
3157 .name = "ath10k_pci",
3158 .id_table = ath10k_pci_id_table,
3159 .probe = ath10k_pci_probe,
3160 .remove = ath10k_pci_remove,
3163 static int __init ath10k_pci_init(void)
3167 ret = pci_register_driver(&ath10k_pci_driver);
3169 printk(KERN_ERR "failed to register ath10k pci driver: %d\n",
3174 module_init(ath10k_pci_init);
3176 static void __exit ath10k_pci_exit(void)
3178 pci_unregister_driver(&ath10k_pci_driver);
3181 module_exit(ath10k_pci_exit);
3183 MODULE_AUTHOR("Qualcomm Atheros");
3184 MODULE_DESCRIPTION("Driver support for Atheros QCA988X PCIe devices");
3185 MODULE_LICENSE("Dual BSD/GPL");
3187 /* QCA988x 2.0 firmware files */
3188 MODULE_FIRMWARE(QCA988X_HW_2_0_FW_DIR "/" QCA988X_HW_2_0_FW_FILE);
3189 MODULE_FIRMWARE(QCA988X_HW_2_0_FW_DIR "/" ATH10K_FW_API2_FILE);
3190 MODULE_FIRMWARE(QCA988X_HW_2_0_FW_DIR "/" ATH10K_FW_API3_FILE);
3191 MODULE_FIRMWARE(QCA988X_HW_2_0_FW_DIR "/" ATH10K_FW_API4_FILE);
3192 MODULE_FIRMWARE(QCA988X_HW_2_0_FW_DIR "/" ATH10K_FW_API5_FILE);
3193 MODULE_FIRMWARE(QCA988X_HW_2_0_FW_DIR "/" QCA988X_HW_2_0_BOARD_DATA_FILE);
3194 MODULE_FIRMWARE(QCA988X_HW_2_0_FW_DIR "/" ATH10K_BOARD_API2_FILE);
3196 /* QCA6174 2.1 firmware files */
3197 MODULE_FIRMWARE(QCA6174_HW_2_1_FW_DIR "/" ATH10K_FW_API4_FILE);
3198 MODULE_FIRMWARE(QCA6174_HW_2_1_FW_DIR "/" ATH10K_FW_API5_FILE);
3199 MODULE_FIRMWARE(QCA6174_HW_2_1_FW_DIR "/" QCA6174_HW_2_1_BOARD_DATA_FILE);
3200 MODULE_FIRMWARE(QCA6174_HW_2_1_FW_DIR "/" ATH10K_BOARD_API2_FILE);
3202 /* QCA6174 3.1 firmware files */
3203 MODULE_FIRMWARE(QCA6174_HW_3_0_FW_DIR "/" ATH10K_FW_API4_FILE);
3204 MODULE_FIRMWARE(QCA6174_HW_3_0_FW_DIR "/" ATH10K_FW_API5_FILE);
3205 MODULE_FIRMWARE(QCA6174_HW_3_0_FW_DIR "/" QCA6174_HW_3_0_BOARD_DATA_FILE);
3206 MODULE_FIRMWARE(QCA6174_HW_3_0_FW_DIR "/" ATH10K_BOARD_API2_FILE);