2 * Marvell Wireless LAN device driver: SDIO specific handling
4 * Copyright (C) 2011-2014, Marvell International Ltd.
6 * This software file (the "File") is distributed by Marvell International
7 * Ltd. under the terms of the GNU General Public License Version 2, June 1991
8 * (the "License"). You may use, redistribute and/or modify this File in
9 * accordance with the terms and conditions of the License, a copy of which
10 * is available by writing to the Free Software Foundation, Inc.,
11 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the
12 * worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
14 * THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
16 * ARE EXPRESSLY DISCLAIMED. The License provides additional details about
17 * this warranty disclaimer.
20 #include <linux/firmware.h>
32 #define SDIO_VERSION "1.0"
34 /* The mwifiex_sdio_remove() callback function is called when
35 * user removes this module from kernel space or ejects
36 * the card from the slot. The driver handles these 2 cases
38 * If the user is removing the module, the few commands (FUNC_SHUTDOWN,
39 * HS_CANCEL etc.) are sent to the firmware.
40 * If the card is removed, there is no need to send these command.
42 * The variable 'user_rmmod' is used to distinguish these two
43 * scenarios. This flag is initialized as FALSE in case the card
44 * is removed, and will be set to TRUE for module removal when
45 * module_exit function is called.
49 static struct mwifiex_if_ops sdio_ops
;
50 static unsigned long iface_work_flags
;
52 static struct semaphore add_remove_card_sem
;
54 static struct memory_type_mapping mem_type_mapping_tbl
[] = {
55 {"ITCM", NULL
, 0, 0xF0},
56 {"DTCM", NULL
, 0, 0xF1},
57 {"SQRAM", NULL
, 0, 0xF2},
58 {"APU", NULL
, 0, 0xF3},
59 {"CIU", NULL
, 0, 0xF4},
60 {"ICU", NULL
, 0, 0xF5},
61 {"MAC", NULL
, 0, 0xF6},
62 {"EXT7", NULL
, 0, 0xF7},
63 {"EXT8", NULL
, 0, 0xF8},
64 {"EXT9", NULL
, 0, 0xF9},
65 {"EXT10", NULL
, 0, 0xFA},
66 {"EXT11", NULL
, 0, 0xFB},
67 {"EXT12", NULL
, 0, 0xFC},
68 {"EXT13", NULL
, 0, 0xFD},
69 {"EXTLAST", NULL
, 0, 0xFE},
75 * This function probes an mwifiex device and registers it. It allocates
76 * the card structure, enables SDIO function number and initiates the
77 * device registration and initialization procedure by adding a logical
81 mwifiex_sdio_probe(struct sdio_func
*func
, const struct sdio_device_id
*id
)
84 struct sdio_mmc_card
*card
= NULL
;
86 pr_debug("info: vendor=0x%4.04X device=0x%4.04X class=%d function=%d\n",
87 func
->vendor
, func
->device
, func
->class, func
->num
);
89 card
= kzalloc(sizeof(struct sdio_mmc_card
), GFP_KERNEL
);
95 func
->card
->quirks
|= MMC_QUIRK_BLKSZ_FOR_BYTE_MODE
;
97 if (id
->driver_data
) {
98 struct mwifiex_sdio_device
*data
= (void *)id
->driver_data
;
100 card
->firmware
= data
->firmware
;
101 card
->reg
= data
->reg
;
102 card
->max_ports
= data
->max_ports
;
103 card
->mp_agg_pkt_limit
= data
->mp_agg_pkt_limit
;
104 card
->supports_sdio_new_mode
= data
->supports_sdio_new_mode
;
105 card
->has_control_mask
= data
->has_control_mask
;
106 card
->tx_buf_size
= data
->tx_buf_size
;
107 card
->mp_tx_agg_buf_size
= data
->mp_tx_agg_buf_size
;
108 card
->mp_rx_agg_buf_size
= data
->mp_rx_agg_buf_size
;
109 card
->can_dump_fw
= data
->can_dump_fw
;
110 card
->can_auto_tdls
= data
->can_auto_tdls
;
111 card
->can_ext_scan
= data
->can_ext_scan
;
114 sdio_claim_host(func
);
115 ret
= sdio_enable_func(func
);
116 sdio_release_host(func
);
119 pr_err("%s: failed to enable function\n", __func__
);
124 if (mwifiex_add_card(card
, &add_remove_card_sem
, &sdio_ops
,
126 pr_err("%s: add card failed\n", __func__
);
128 sdio_claim_host(func
);
129 ret
= sdio_disable_func(func
);
130 sdio_release_host(func
);
140 * Kernel needs to suspend all functions separately. Therefore all
141 * registered functions must have drivers with suspend and resume
142 * methods. Failing that the kernel simply removes the whole card.
144 * If already not resumed, this function turns on the traffic and
145 * sends a host sleep cancel request to the firmware.
147 static int mwifiex_sdio_resume(struct device
*dev
)
149 struct sdio_func
*func
= dev_to_sdio_func(dev
);
150 struct sdio_mmc_card
*card
;
151 struct mwifiex_adapter
*adapter
;
152 mmc_pm_flag_t pm_flag
= 0;
155 pm_flag
= sdio_get_host_pm_caps(func
);
156 card
= sdio_get_drvdata(func
);
157 if (!card
|| !card
->adapter
) {
158 pr_err("resume: invalid card or adapter\n");
162 pr_err("resume: sdio_func is not specified\n");
166 adapter
= card
->adapter
;
168 if (!adapter
->is_suspended
) {
169 mwifiex_dbg(adapter
, WARN
,
170 "device already resumed\n");
174 adapter
->is_suspended
= false;
176 /* Disable Host Sleep */
177 mwifiex_cancel_hs(mwifiex_get_priv(adapter
, MWIFIEX_BSS_ROLE_STA
),
186 * This function removes the interface and frees up the card structure.
189 mwifiex_sdio_remove(struct sdio_func
*func
)
191 struct sdio_mmc_card
*card
;
192 struct mwifiex_adapter
*adapter
;
193 struct mwifiex_private
*priv
;
195 card
= sdio_get_drvdata(func
);
199 adapter
= card
->adapter
;
200 if (!adapter
|| !adapter
->priv_num
)
203 mwifiex_dbg(adapter
, INFO
, "info: SDIO func num=%d\n", func
->num
);
206 if (adapter
->is_suspended
)
207 mwifiex_sdio_resume(adapter
->dev
);
209 mwifiex_deauthenticate_all(adapter
);
211 priv
= mwifiex_get_priv(adapter
, MWIFIEX_BSS_ROLE_ANY
);
212 mwifiex_disable_auto_ds(priv
);
213 mwifiex_init_shutdown_fw(priv
, MWIFIEX_FUNC_SHUTDOWN
);
216 mwifiex_remove_card(card
->adapter
, &add_remove_card_sem
);
222 * Kernel needs to suspend all functions separately. Therefore all
223 * registered functions must have drivers with suspend and resume
224 * methods. Failing that the kernel simply removes the whole card.
226 * If already not suspended, this function allocates and sends a host
227 * sleep activate request to the firmware and turns off the traffic.
229 static int mwifiex_sdio_suspend(struct device
*dev
)
231 struct sdio_func
*func
= dev_to_sdio_func(dev
);
232 struct sdio_mmc_card
*card
;
233 struct mwifiex_adapter
*adapter
;
234 mmc_pm_flag_t pm_flag
= 0;
238 pm_flag
= sdio_get_host_pm_caps(func
);
239 pr_debug("cmd: %s: suspend: PM flag = 0x%x\n",
240 sdio_func_id(func
), pm_flag
);
241 if (!(pm_flag
& MMC_PM_KEEP_POWER
)) {
242 pr_err("%s: cannot remain alive while host is"
243 " suspended\n", sdio_func_id(func
));
247 card
= sdio_get_drvdata(func
);
248 if (!card
|| !card
->adapter
) {
249 pr_err("suspend: invalid card or adapter\n");
253 pr_err("suspend: sdio_func is not specified\n");
257 adapter
= card
->adapter
;
259 /* Enable the Host Sleep */
260 if (!mwifiex_enable_hs(adapter
)) {
261 mwifiex_dbg(adapter
, ERROR
,
262 "cmd: failed to suspend\n");
263 adapter
->hs_enabling
= false;
267 mwifiex_dbg(adapter
, INFO
,
268 "cmd: suspend with MMC_PM_KEEP_POWER\n");
269 ret
= sdio_set_host_pm_flags(func
, MMC_PM_KEEP_POWER
);
271 /* Indicate device suspended */
272 adapter
->is_suspended
= true;
273 adapter
->hs_enabling
= false;
278 /* Device ID for SD8786 */
279 #define SDIO_DEVICE_ID_MARVELL_8786 (0x9116)
280 /* Device ID for SD8787 */
281 #define SDIO_DEVICE_ID_MARVELL_8787 (0x9119)
282 /* Device ID for SD8797 */
283 #define SDIO_DEVICE_ID_MARVELL_8797 (0x9129)
284 /* Device ID for SD8897 */
285 #define SDIO_DEVICE_ID_MARVELL_8897 (0x912d)
286 /* Device ID for SD8887 */
287 #define SDIO_DEVICE_ID_MARVELL_8887 (0x9135)
288 /* Device ID for SD8801 */
289 #define SDIO_DEVICE_ID_MARVELL_8801 (0x9139)
293 static const struct sdio_device_id mwifiex_ids
[] = {
294 {SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL
, SDIO_DEVICE_ID_MARVELL_8786
),
295 .driver_data
= (unsigned long) &mwifiex_sdio_sd8786
},
296 {SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL
, SDIO_DEVICE_ID_MARVELL_8787
),
297 .driver_data
= (unsigned long) &mwifiex_sdio_sd8787
},
298 {SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL
, SDIO_DEVICE_ID_MARVELL_8797
),
299 .driver_data
= (unsigned long) &mwifiex_sdio_sd8797
},
300 {SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL
, SDIO_DEVICE_ID_MARVELL_8897
),
301 .driver_data
= (unsigned long) &mwifiex_sdio_sd8897
},
302 {SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL
, SDIO_DEVICE_ID_MARVELL_8887
),
303 .driver_data
= (unsigned long)&mwifiex_sdio_sd8887
},
304 {SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL
, SDIO_DEVICE_ID_MARVELL_8801
),
305 .driver_data
= (unsigned long)&mwifiex_sdio_sd8801
},
309 MODULE_DEVICE_TABLE(sdio
, mwifiex_ids
);
311 static const struct dev_pm_ops mwifiex_sdio_pm_ops
= {
312 .suspend
= mwifiex_sdio_suspend
,
313 .resume
= mwifiex_sdio_resume
,
316 static struct sdio_driver mwifiex_sdio
= {
317 .name
= "mwifiex_sdio",
318 .id_table
= mwifiex_ids
,
319 .probe
= mwifiex_sdio_probe
,
320 .remove
= mwifiex_sdio_remove
,
322 .owner
= THIS_MODULE
,
323 .pm
= &mwifiex_sdio_pm_ops
,
327 /* Write data into SDIO card register. Caller claims SDIO device. */
329 mwifiex_write_reg_locked(struct sdio_func
*func
, u32 reg
, u8 data
)
332 sdio_writeb(func
, data
, reg
, &ret
);
337 * This function writes data into SDIO card register.
340 mwifiex_write_reg(struct mwifiex_adapter
*adapter
, u32 reg
, u8 data
)
342 struct sdio_mmc_card
*card
= adapter
->card
;
345 sdio_claim_host(card
->func
);
346 ret
= mwifiex_write_reg_locked(card
->func
, reg
, data
);
347 sdio_release_host(card
->func
);
353 * This function reads data from SDIO card register.
356 mwifiex_read_reg(struct mwifiex_adapter
*adapter
, u32 reg
, u8
*data
)
358 struct sdio_mmc_card
*card
= adapter
->card
;
362 sdio_claim_host(card
->func
);
363 val
= sdio_readb(card
->func
, reg
, &ret
);
364 sdio_release_host(card
->func
);
372 * This function writes multiple data into SDIO card memory.
374 * This does not work in suspended mode.
377 mwifiex_write_data_sync(struct mwifiex_adapter
*adapter
,
378 u8
*buffer
, u32 pkt_len
, u32 port
)
380 struct sdio_mmc_card
*card
= adapter
->card
;
383 (port
& MWIFIEX_SDIO_BYTE_MODE_MASK
) ? BYTE_MODE
: BLOCK_MODE
;
384 u32 blk_size
= (blk_mode
== BLOCK_MODE
) ? MWIFIEX_SDIO_BLOCK_SIZE
: 1;
387 BLOCK_MODE
) ? (pkt_len
/
388 MWIFIEX_SDIO_BLOCK_SIZE
) : pkt_len
;
389 u32 ioport
= (port
& MWIFIEX_SDIO_IO_PORT_MASK
);
391 if (adapter
->is_suspended
) {
392 mwifiex_dbg(adapter
, ERROR
,
393 "%s: not allowed while suspended\n", __func__
);
397 sdio_claim_host(card
->func
);
399 ret
= sdio_writesb(card
->func
, ioport
, buffer
, blk_cnt
* blk_size
);
401 sdio_release_host(card
->func
);
407 * This function reads multiple data from SDIO card memory.
409 static int mwifiex_read_data_sync(struct mwifiex_adapter
*adapter
, u8
*buffer
,
410 u32 len
, u32 port
, u8 claim
)
412 struct sdio_mmc_card
*card
= adapter
->card
;
414 u8 blk_mode
= (port
& MWIFIEX_SDIO_BYTE_MODE_MASK
) ? BYTE_MODE
416 u32 blk_size
= (blk_mode
== BLOCK_MODE
) ? MWIFIEX_SDIO_BLOCK_SIZE
: 1;
417 u32 blk_cnt
= (blk_mode
== BLOCK_MODE
) ? (len
/ MWIFIEX_SDIO_BLOCK_SIZE
)
419 u32 ioport
= (port
& MWIFIEX_SDIO_IO_PORT_MASK
);
422 sdio_claim_host(card
->func
);
424 ret
= sdio_readsb(card
->func
, buffer
, ioport
, blk_cnt
* blk_size
);
427 sdio_release_host(card
->func
);
433 * This function wakes up the card.
435 * A host power up command is written to the card configuration
436 * register to wake up the card.
438 static int mwifiex_pm_wakeup_card(struct mwifiex_adapter
*adapter
)
440 mwifiex_dbg(adapter
, EVENT
,
441 "event: wakeup device...\n");
443 return mwifiex_write_reg(adapter
, CONFIGURATION_REG
, HOST_POWER_UP
);
447 * This function is called after the card has woken up.
449 * The card configuration register is reset.
451 static int mwifiex_pm_wakeup_card_complete(struct mwifiex_adapter
*adapter
)
453 mwifiex_dbg(adapter
, EVENT
,
454 "cmd: wakeup device completed\n");
456 return mwifiex_write_reg(adapter
, CONFIGURATION_REG
, 0);
460 * This function is used to initialize IO ports for the
461 * chipsets supporting SDIO new mode eg SD8897.
463 static int mwifiex_init_sdio_new_mode(struct mwifiex_adapter
*adapter
)
466 struct sdio_mmc_card
*card
= adapter
->card
;
468 adapter
->ioport
= MEM_PORT
;
470 /* enable sdio new mode */
471 if (mwifiex_read_reg(adapter
, card
->reg
->card_cfg_2_1_reg
, ®
))
473 if (mwifiex_write_reg(adapter
, card
->reg
->card_cfg_2_1_reg
,
474 reg
| CMD53_NEW_MODE
))
477 /* Configure cmd port and enable reading rx length from the register */
478 if (mwifiex_read_reg(adapter
, card
->reg
->cmd_cfg_0
, ®
))
480 if (mwifiex_write_reg(adapter
, card
->reg
->cmd_cfg_0
,
481 reg
| CMD_PORT_RD_LEN_EN
))
484 /* Enable Dnld/Upld ready auto reset for cmd port after cmd53 is
487 if (mwifiex_read_reg(adapter
, card
->reg
->cmd_cfg_1
, ®
))
489 if (mwifiex_write_reg(adapter
, card
->reg
->cmd_cfg_1
,
490 reg
| CMD_PORT_AUTO_EN
))
496 /* This function initializes the IO ports.
498 * The following operations are performed -
499 * - Read the IO ports (0, 1 and 2)
500 * - Set host interrupt Reset-To-Read to clear
501 * - Set auto re-enable interrupt
503 static int mwifiex_init_sdio_ioport(struct mwifiex_adapter
*adapter
)
506 struct sdio_mmc_card
*card
= adapter
->card
;
510 if (card
->supports_sdio_new_mode
) {
511 if (mwifiex_init_sdio_new_mode(adapter
))
516 /* Read the IO port */
517 if (!mwifiex_read_reg(adapter
, card
->reg
->io_port_0_reg
, ®
))
518 adapter
->ioport
|= (reg
& 0xff);
522 if (!mwifiex_read_reg(adapter
, card
->reg
->io_port_1_reg
, ®
))
523 adapter
->ioport
|= ((reg
& 0xff) << 8);
527 if (!mwifiex_read_reg(adapter
, card
->reg
->io_port_2_reg
, ®
))
528 adapter
->ioport
|= ((reg
& 0xff) << 16);
532 mwifiex_dbg(adapter
, INFO
,
533 "info: SDIO FUNC1 IO port: %#x\n", adapter
->ioport
);
535 /* Set Host interrupt reset to read to clear */
536 if (!mwifiex_read_reg(adapter
, card
->reg
->host_int_rsr_reg
, ®
))
537 mwifiex_write_reg(adapter
, card
->reg
->host_int_rsr_reg
,
538 reg
| card
->reg
->sdio_int_mask
);
542 /* Dnld/Upld ready set to auto reset */
543 if (!mwifiex_read_reg(adapter
, card
->reg
->card_misc_cfg_reg
, ®
))
544 mwifiex_write_reg(adapter
, card
->reg
->card_misc_cfg_reg
,
545 reg
| AUTO_RE_ENABLE_INT
);
553 * This function sends data to the card.
555 static int mwifiex_write_data_to_card(struct mwifiex_adapter
*adapter
,
556 u8
*payload
, u32 pkt_len
, u32 port
)
562 ret
= mwifiex_write_data_sync(adapter
, payload
, pkt_len
, port
);
565 mwifiex_dbg(adapter
, ERROR
,
566 "host_to_card, write iomem\t"
567 "(%d) failed: %d\n", i
, ret
);
568 if (mwifiex_write_reg(adapter
, CONFIGURATION_REG
, 0x04))
569 mwifiex_dbg(adapter
, ERROR
,
570 "write CFG reg failed\n");
573 if (i
> MAX_WRITE_IOMEM_RETRY
)
582 * This function gets the read port.
584 * If control port bit is set in MP read bitmap, the control port
585 * is returned, otherwise the current read port is returned and
586 * the value is increased (provided it does not reach the maximum
587 * limit, in which case it is reset to 1)
589 static int mwifiex_get_rd_port(struct mwifiex_adapter
*adapter
, u8
*port
)
591 struct sdio_mmc_card
*card
= adapter
->card
;
592 const struct mwifiex_sdio_card_reg
*reg
= card
->reg
;
593 u32 rd_bitmap
= card
->mp_rd_bitmap
;
595 mwifiex_dbg(adapter
, DATA
,
596 "data: mp_rd_bitmap=0x%08x\n", rd_bitmap
);
598 if (card
->supports_sdio_new_mode
) {
599 if (!(rd_bitmap
& reg
->data_port_mask
))
602 if (!(rd_bitmap
& (CTRL_PORT_MASK
| reg
->data_port_mask
)))
606 if ((card
->has_control_mask
) &&
607 (card
->mp_rd_bitmap
& CTRL_PORT_MASK
)) {
608 card
->mp_rd_bitmap
&= (u32
) (~CTRL_PORT_MASK
);
610 mwifiex_dbg(adapter
, DATA
,
611 "data: port=%d mp_rd_bitmap=0x%08x\n",
612 *port
, card
->mp_rd_bitmap
);
616 if (!(card
->mp_rd_bitmap
& (1 << card
->curr_rd_port
)))
619 /* We are now handling the SDIO data ports */
620 card
->mp_rd_bitmap
&= (u32
)(~(1 << card
->curr_rd_port
));
621 *port
= card
->curr_rd_port
;
623 if (++card
->curr_rd_port
== card
->max_ports
)
624 card
->curr_rd_port
= reg
->start_rd_port
;
626 mwifiex_dbg(adapter
, DATA
,
627 "data: port=%d mp_rd_bitmap=0x%08x -> 0x%08x\n",
628 *port
, rd_bitmap
, card
->mp_rd_bitmap
);
634 * This function gets the write port for data.
636 * The current write port is returned if available and the value is
637 * increased (provided it does not reach the maximum limit, in which
638 * case it is reset to 1)
640 static int mwifiex_get_wr_port_data(struct mwifiex_adapter
*adapter
, u32
*port
)
642 struct sdio_mmc_card
*card
= adapter
->card
;
643 const struct mwifiex_sdio_card_reg
*reg
= card
->reg
;
644 u32 wr_bitmap
= card
->mp_wr_bitmap
;
646 mwifiex_dbg(adapter
, DATA
,
647 "data: mp_wr_bitmap=0x%08x\n", wr_bitmap
);
649 if (!(wr_bitmap
& card
->mp_data_port_mask
)) {
650 adapter
->data_sent
= true;
654 if (card
->mp_wr_bitmap
& (1 << card
->curr_wr_port
)) {
655 card
->mp_wr_bitmap
&= (u32
) (~(1 << card
->curr_wr_port
));
656 *port
= card
->curr_wr_port
;
657 if (++card
->curr_wr_port
== card
->mp_end_port
)
658 card
->curr_wr_port
= reg
->start_wr_port
;
660 adapter
->data_sent
= true;
664 if ((card
->has_control_mask
) && (*port
== CTRL_PORT
)) {
665 mwifiex_dbg(adapter
, ERROR
,
666 "invalid data port=%d cur port=%d mp_wr_bitmap=0x%08x -> 0x%08x\n",
667 *port
, card
->curr_wr_port
, wr_bitmap
,
672 mwifiex_dbg(adapter
, DATA
,
673 "data: port=%d mp_wr_bitmap=0x%08x -> 0x%08x\n",
674 *port
, wr_bitmap
, card
->mp_wr_bitmap
);
680 * This function polls the card status.
683 mwifiex_sdio_poll_card_status(struct mwifiex_adapter
*adapter
, u8 bits
)
685 struct sdio_mmc_card
*card
= adapter
->card
;
689 for (tries
= 0; tries
< MAX_POLL_TRIES
; tries
++) {
690 if (mwifiex_read_reg(adapter
, card
->reg
->poll_reg
, &cs
))
692 else if ((cs
& bits
) == bits
)
695 usleep_range(10, 20);
698 mwifiex_dbg(adapter
, ERROR
,
699 "poll card status failed, tries = %d\n", tries
);
705 * This function reads the firmware status.
708 mwifiex_sdio_read_fw_status(struct mwifiex_adapter
*adapter
, u16
*dat
)
710 struct sdio_mmc_card
*card
= adapter
->card
;
711 const struct mwifiex_sdio_card_reg
*reg
= card
->reg
;
714 if (mwifiex_read_reg(adapter
, reg
->status_reg_0
, &fws0
))
717 if (mwifiex_read_reg(adapter
, reg
->status_reg_1
, &fws1
))
720 *dat
= (u16
) ((fws1
<< 8) | fws0
);
726 * This function disables the host interrupt.
728 * The host interrupt mask is read, the disable bit is reset and
729 * written back to the card host interrupt mask register.
731 static void mwifiex_sdio_disable_host_int(struct mwifiex_adapter
*adapter
)
733 struct sdio_mmc_card
*card
= adapter
->card
;
734 struct sdio_func
*func
= card
->func
;
736 sdio_claim_host(func
);
737 mwifiex_write_reg_locked(func
, card
->reg
->host_int_mask_reg
, 0);
738 sdio_release_irq(func
);
739 sdio_release_host(func
);
743 * This function reads the interrupt status from card.
745 static void mwifiex_interrupt_status(struct mwifiex_adapter
*adapter
)
747 struct sdio_mmc_card
*card
= adapter
->card
;
751 if (mwifiex_read_data_sync(adapter
, card
->mp_regs
,
752 card
->reg
->max_mp_regs
,
753 REG_PORT
| MWIFIEX_SDIO_BYTE_MODE_MASK
, 0)) {
754 mwifiex_dbg(adapter
, ERROR
, "read mp_regs failed\n");
758 sdio_ireg
= card
->mp_regs
[card
->reg
->host_int_status_reg
];
761 * DN_LD_HOST_INT_STATUS and/or UP_LD_HOST_INT_STATUS
762 * For SDIO new mode CMD port interrupts
763 * DN_LD_CMD_PORT_HOST_INT_STATUS and/or
764 * UP_LD_CMD_PORT_HOST_INT_STATUS
765 * Clear the interrupt status register
767 mwifiex_dbg(adapter
, INTR
,
768 "int: sdio_ireg = %#x\n", sdio_ireg
);
769 spin_lock_irqsave(&adapter
->int_lock
, flags
);
770 adapter
->int_status
|= sdio_ireg
;
771 spin_unlock_irqrestore(&adapter
->int_lock
, flags
);
776 * SDIO interrupt handler.
778 * This function reads the interrupt status from firmware and handles
779 * the interrupt in current thread (ksdioirqd) right away.
782 mwifiex_sdio_interrupt(struct sdio_func
*func
)
784 struct mwifiex_adapter
*adapter
;
785 struct sdio_mmc_card
*card
;
787 card
= sdio_get_drvdata(func
);
788 if (!card
|| !card
->adapter
) {
789 pr_debug("int: func=%p card=%p adapter=%p\n",
790 func
, card
, card
? card
->adapter
: NULL
);
793 adapter
= card
->adapter
;
795 if (!adapter
->pps_uapsd_mode
&& adapter
->ps_state
== PS_STATE_SLEEP
)
796 adapter
->ps_state
= PS_STATE_AWAKE
;
798 mwifiex_interrupt_status(adapter
);
799 mwifiex_main_process(adapter
);
803 * This function enables the host interrupt.
805 * The host interrupt enable mask is written to the card
806 * host interrupt mask register.
808 static int mwifiex_sdio_enable_host_int(struct mwifiex_adapter
*adapter
)
810 struct sdio_mmc_card
*card
= adapter
->card
;
811 struct sdio_func
*func
= card
->func
;
814 sdio_claim_host(func
);
816 /* Request the SDIO IRQ */
817 ret
= sdio_claim_irq(func
, mwifiex_sdio_interrupt
);
819 mwifiex_dbg(adapter
, ERROR
,
820 "claim irq failed: ret=%d\n", ret
);
824 /* Simply write the mask to the register */
825 ret
= mwifiex_write_reg_locked(func
, card
->reg
->host_int_mask_reg
,
826 card
->reg
->host_int_enable
);
828 mwifiex_dbg(adapter
, ERROR
,
829 "enable host interrupt failed\n");
830 sdio_release_irq(func
);
834 sdio_release_host(func
);
839 * This function sends a data buffer to the card.
841 static int mwifiex_sdio_card_to_host(struct mwifiex_adapter
*adapter
,
842 u32
*type
, u8
*buffer
,
843 u32 npayload
, u32 ioport
)
849 mwifiex_dbg(adapter
, ERROR
,
850 "%s: buffer is NULL\n", __func__
);
854 ret
= mwifiex_read_data_sync(adapter
, buffer
, npayload
, ioport
, 1);
857 mwifiex_dbg(adapter
, ERROR
,
858 "%s: read iomem failed: %d\n", __func__
,
863 nb
= le16_to_cpu(*(__le16
*) (buffer
));
865 mwifiex_dbg(adapter
, ERROR
,
866 "%s: invalid packet, nb=%d npayload=%d\n",
867 __func__
, nb
, npayload
);
871 *type
= le16_to_cpu(*(__le16
*) (buffer
+ 2));
877 * This function downloads the firmware to the card.
879 * Firmware is downloaded to the card in blocks. Every block download
880 * is tested for CRC errors, and retried a number of times before
883 static int mwifiex_prog_fw_w_helper(struct mwifiex_adapter
*adapter
,
884 struct mwifiex_fw_image
*fw
)
886 struct sdio_mmc_card
*card
= adapter
->card
;
887 const struct mwifiex_sdio_card_reg
*reg
= card
->reg
;
889 u8
*firmware
= fw
->fw_buf
;
890 u32 firmware_len
= fw
->fw_len
;
895 u32 txlen
, tx_blocks
= 0, tries
;
899 mwifiex_dbg(adapter
, ERROR
,
900 "firmware image not found! Terminating download\n");
904 mwifiex_dbg(adapter
, INFO
,
905 "info: downloading FW image (%d bytes)\n",
908 /* Assume that the allocated buffer is 8-byte aligned */
909 fwbuf
= kzalloc(MWIFIEX_UPLD_SIZE
, GFP_KERNEL
);
913 /* Perform firmware data transfer */
915 /* The host polls for the DN_LD_CARD_RDY and CARD_IO_READY
917 ret
= mwifiex_sdio_poll_card_status(adapter
, CARD_IO_READY
|
920 mwifiex_dbg(adapter
, ERROR
,
921 "FW download with helper:\t"
922 "poll status timeout @ %d\n", offset
);
927 if (offset
>= firmware_len
)
930 for (tries
= 0; tries
< MAX_POLL_TRIES
; tries
++) {
931 ret
= mwifiex_read_reg(adapter
, reg
->base_0_reg
,
934 mwifiex_dbg(adapter
, ERROR
,
935 "dev BASE0 register read failed:\t"
936 "base0=%#04X(%d). Terminating dnld\n",
940 ret
= mwifiex_read_reg(adapter
, reg
->base_1_reg
,
943 mwifiex_dbg(adapter
, ERROR
,
944 "dev BASE1 register read failed:\t"
945 "base1=%#04X(%d). Terminating dnld\n",
949 len
= (u16
) (((base1
& 0xff) << 8) | (base0
& 0xff));
954 usleep_range(10, 20);
959 } else if (len
> MWIFIEX_UPLD_SIZE
) {
960 mwifiex_dbg(adapter
, ERROR
,
961 "FW dnld failed @ %d, invalid length %d\n",
971 if (i
> MAX_WRITE_IOMEM_RETRY
) {
972 mwifiex_dbg(adapter
, ERROR
,
973 "FW dnld failed @ %d, over max retry\n",
978 mwifiex_dbg(adapter
, ERROR
,
979 "CRC indicated by the helper:\t"
980 "len = 0x%04X, txlen = %d\n", len
, txlen
);
982 /* Setting this to 0 to resend from same offset */
987 /* Set blocksize to transfer - checking for last
989 if (firmware_len
- offset
< txlen
)
990 txlen
= firmware_len
- offset
;
992 tx_blocks
= (txlen
+ MWIFIEX_SDIO_BLOCK_SIZE
- 1)
993 / MWIFIEX_SDIO_BLOCK_SIZE
;
995 /* Copy payload to buffer */
996 memmove(fwbuf
, &firmware
[offset
], txlen
);
999 ret
= mwifiex_write_data_sync(adapter
, fwbuf
, tx_blocks
*
1000 MWIFIEX_SDIO_BLOCK_SIZE
,
1003 mwifiex_dbg(adapter
, ERROR
,
1004 "FW download, write iomem (%d) failed @ %d\n",
1006 if (mwifiex_write_reg(adapter
, CONFIGURATION_REG
, 0x04))
1007 mwifiex_dbg(adapter
, ERROR
,
1008 "write CFG reg failed\n");
1017 mwifiex_dbg(adapter
, MSG
,
1018 "info: FW download over, size %d bytes\n", offset
);
1027 * This function checks the firmware status in card.
1029 * The winner interface is also determined by this function.
1031 static int mwifiex_check_fw_status(struct mwifiex_adapter
*adapter
,
1034 struct sdio_mmc_card
*card
= adapter
->card
;
1040 /* Wait for firmware initialization event */
1041 for (tries
= 0; tries
< poll_num
; tries
++) {
1042 ret
= mwifiex_sdio_read_fw_status(adapter
, &firmware_stat
);
1045 if (firmware_stat
== FIRMWARE_READY_SDIO
) {
1055 if (mwifiex_read_reg
1056 (adapter
, card
->reg
->status_reg_0
, &winner_status
))
1060 adapter
->winner
= 0;
1062 adapter
->winner
= 1;
1068 * This function decode sdio aggreation pkt.
1070 * Based on the the data block size and pkt_len,
1071 * skb data will be decoded to few packets.
1073 static void mwifiex_deaggr_sdio_pkt(struct mwifiex_adapter
*adapter
,
1074 struct sk_buff
*skb
)
1076 u32 total_pkt_len
, pkt_len
;
1077 struct sk_buff
*skb_deaggr
;
1084 total_pkt_len
= skb
->len
;
1086 while (total_pkt_len
>= (SDIO_HEADER_OFFSET
+ INTF_HEADER_LEN
)) {
1087 if (total_pkt_len
< adapter
->sdio_rx_block_size
)
1089 blk_num
= *(data
+ BLOCK_NUMBER_OFFSET
);
1090 blk_size
= adapter
->sdio_rx_block_size
* blk_num
;
1091 if (blk_size
> total_pkt_len
) {
1092 mwifiex_dbg(adapter
, ERROR
,
1093 "%s: error in blk_size,\t"
1094 "blk_num=%d, blk_size=%d, total_pkt_len=%d\n",
1095 __func__
, blk_num
, blk_size
, total_pkt_len
);
1098 pkt_len
= le16_to_cpu(*(__le16
*)(data
+ SDIO_HEADER_OFFSET
));
1099 pkt_type
= le16_to_cpu(*(__le16
*)(data
+ SDIO_HEADER_OFFSET
+
1101 if ((pkt_len
+ SDIO_HEADER_OFFSET
) > blk_size
) {
1102 mwifiex_dbg(adapter
, ERROR
,
1103 "%s: error in pkt_len,\t"
1104 "pkt_len=%d, blk_size=%d\n",
1105 __func__
, pkt_len
, blk_size
);
1108 skb_deaggr
= mwifiex_alloc_dma_align_buf(pkt_len
,
1109 GFP_KERNEL
| GFP_DMA
);
1112 skb_put(skb_deaggr
, pkt_len
);
1113 memcpy(skb_deaggr
->data
, data
+ SDIO_HEADER_OFFSET
, pkt_len
);
1114 skb_pull(skb_deaggr
, INTF_HEADER_LEN
);
1116 mwifiex_handle_rx_packet(adapter
, skb_deaggr
);
1118 total_pkt_len
-= blk_size
;
1123 * This function decodes a received packet.
1125 * Based on the type, the packet is treated as either a data, or
1126 * a command response, or an event, and the correct handler
1127 * function is invoked.
1129 static int mwifiex_decode_rx_packet(struct mwifiex_adapter
*adapter
,
1130 struct sk_buff
*skb
, u32 upld_typ
)
1133 __le16
*curr_ptr
= (__le16
*)skb
->data
;
1134 u16 pkt_len
= le16_to_cpu(*curr_ptr
);
1135 struct mwifiex_rxinfo
*rx_info
;
1137 if (upld_typ
!= MWIFIEX_TYPE_AGGR_DATA
) {
1138 skb_trim(skb
, pkt_len
);
1139 skb_pull(skb
, INTF_HEADER_LEN
);
1143 case MWIFIEX_TYPE_AGGR_DATA
:
1144 mwifiex_dbg(adapter
, INFO
,
1145 "info: --- Rx: Aggr Data packet ---\n");
1146 rx_info
= MWIFIEX_SKB_RXCB(skb
);
1147 rx_info
->buf_type
= MWIFIEX_TYPE_AGGR_DATA
;
1148 if (adapter
->rx_work_enabled
) {
1149 skb_queue_tail(&adapter
->rx_data_q
, skb
);
1150 atomic_inc(&adapter
->rx_pending
);
1151 adapter
->data_received
= true;
1153 mwifiex_deaggr_sdio_pkt(adapter
, skb
);
1154 dev_kfree_skb_any(skb
);
1158 case MWIFIEX_TYPE_DATA
:
1159 mwifiex_dbg(adapter
, DATA
,
1160 "info: --- Rx: Data packet ---\n");
1161 if (adapter
->rx_work_enabled
) {
1162 skb_queue_tail(&adapter
->rx_data_q
, skb
);
1163 adapter
->data_received
= true;
1164 atomic_inc(&adapter
->rx_pending
);
1166 mwifiex_handle_rx_packet(adapter
, skb
);
1170 case MWIFIEX_TYPE_CMD
:
1171 mwifiex_dbg(adapter
, CMD
,
1172 "info: --- Rx: Cmd Response ---\n");
1173 /* take care of curr_cmd = NULL case */
1174 if (!adapter
->curr_cmd
) {
1175 cmd_buf
= adapter
->upld_buf
;
1177 if (adapter
->ps_state
== PS_STATE_SLEEP_CFM
)
1178 mwifiex_process_sleep_confirm_resp(adapter
,
1182 memcpy(cmd_buf
, skb
->data
,
1183 min_t(u32
, MWIFIEX_SIZE_OF_CMD_BUFFER
,
1186 dev_kfree_skb_any(skb
);
1188 adapter
->cmd_resp_received
= true;
1189 adapter
->curr_cmd
->resp_skb
= skb
;
1193 case MWIFIEX_TYPE_EVENT
:
1194 mwifiex_dbg(adapter
, EVENT
,
1195 "info: --- Rx: Event ---\n");
1196 adapter
->event_cause
= le32_to_cpu(*(__le32
*) skb
->data
);
1198 if ((skb
->len
> 0) && (skb
->len
< MAX_EVENT_SIZE
))
1199 memcpy(adapter
->event_body
,
1200 skb
->data
+ MWIFIEX_EVENT_HEADER_LEN
,
1203 /* event cause has been saved to adapter->event_cause */
1204 adapter
->event_received
= true;
1205 adapter
->event_skb
= skb
;
1210 mwifiex_dbg(adapter
, ERROR
,
1211 "unknown upload type %#x\n", upld_typ
);
1212 dev_kfree_skb_any(skb
);
1220 * This function transfers received packets from card to driver, performing
1221 * aggregation if required.
1223 * For data received on control port, or if aggregation is disabled, the
1224 * received buffers are uploaded as separate packets. However, if aggregation
1225 * is enabled and required, the buffers are copied onto an aggregation buffer,
1226 * provided there is space left, processed and finally uploaded.
1228 static int mwifiex_sdio_card_to_host_mp_aggr(struct mwifiex_adapter
*adapter
,
1229 u16 rx_len
, u8 port
)
1231 struct sdio_mmc_card
*card
= adapter
->card
;
1232 s32 f_do_rx_aggr
= 0;
1233 s32 f_do_rx_cur
= 0;
1235 s32 f_post_aggr_cur
= 0;
1236 struct sk_buff
*skb_deaggr
;
1237 struct sk_buff
*skb
= NULL
;
1238 u32 pkt_len
, pkt_type
, mport
, pind
;
1241 if ((card
->has_control_mask
) && (port
== CTRL_PORT
)) {
1242 /* Read the command Resp without aggr */
1243 mwifiex_dbg(adapter
, CMD
,
1244 "info: %s: no aggregation for cmd\t"
1245 "response\n", __func__
);
1248 goto rx_curr_single
;
1251 if (!card
->mpa_rx
.enabled
) {
1252 mwifiex_dbg(adapter
, WARN
,
1253 "info: %s: rx aggregation disabled\n",
1257 goto rx_curr_single
;
1260 if ((!card
->has_control_mask
&& (card
->mp_rd_bitmap
&
1261 card
->reg
->data_port_mask
)) ||
1262 (card
->has_control_mask
&& (card
->mp_rd_bitmap
&
1263 (~((u32
) CTRL_PORT_MASK
))))) {
1264 /* Some more data RX pending */
1265 mwifiex_dbg(adapter
, INFO
,
1266 "info: %s: not last packet\n", __func__
);
1268 if (MP_RX_AGGR_IN_PROGRESS(card
)) {
1269 if (MP_RX_AGGR_BUF_HAS_ROOM(card
, rx_len
)) {
1272 /* No room in Aggr buf, do rx aggr now */
1274 f_post_aggr_cur
= 1;
1277 /* Rx aggr not in progress */
1282 /* No more data RX pending */
1283 mwifiex_dbg(adapter
, INFO
,
1284 "info: %s: last packet\n", __func__
);
1286 if (MP_RX_AGGR_IN_PROGRESS(card
)) {
1288 if (MP_RX_AGGR_BUF_HAS_ROOM(card
, rx_len
))
1291 /* No room in Aggr buf, do rx aggr now */
1299 mwifiex_dbg(adapter
, INFO
,
1300 "info: current packet aggregation\n");
1301 /* Curr pkt can be aggregated */
1302 mp_rx_aggr_setup(card
, rx_len
, port
);
1304 if (MP_RX_AGGR_PKT_LIMIT_REACHED(card
) ||
1305 mp_rx_aggr_port_limit_reached(card
)) {
1306 mwifiex_dbg(adapter
, INFO
,
1307 "info: %s: aggregated packet\t"
1308 "limit reached\n", __func__
);
1309 /* No more pkts allowed in Aggr buf, rx it */
1315 /* do aggr RX now */
1316 mwifiex_dbg(adapter
, DATA
,
1317 "info: do_rx_aggr: num of packets: %d\n",
1318 card
->mpa_rx
.pkt_cnt
);
1320 if (card
->supports_sdio_new_mode
) {
1324 for (i
= 0, port_count
= 0; i
< card
->max_ports
; i
++)
1325 if (card
->mpa_rx
.ports
& BIT(i
))
1328 /* Reading data from "start_port + 0" to "start_port +
1329 * port_count -1", so decrease the count by 1
1332 mport
= (adapter
->ioport
| SDIO_MPA_ADDR_BASE
|
1333 (port_count
<< 8)) + card
->mpa_rx
.start_port
;
1335 mport
= (adapter
->ioport
| SDIO_MPA_ADDR_BASE
|
1336 (card
->mpa_rx
.ports
<< 4)) +
1337 card
->mpa_rx
.start_port
;
1340 if (mwifiex_read_data_sync(adapter
, card
->mpa_rx
.buf
,
1341 card
->mpa_rx
.buf_len
, mport
, 1))
1344 curr_ptr
= card
->mpa_rx
.buf
;
1346 for (pind
= 0; pind
< card
->mpa_rx
.pkt_cnt
; pind
++) {
1347 u32
*len_arr
= card
->mpa_rx
.len_arr
;
1349 /* get curr PKT len & type */
1350 pkt_len
= le16_to_cpu(*(__le16
*) &curr_ptr
[0]);
1351 pkt_type
= le16_to_cpu(*(__le16
*) &curr_ptr
[2]);
1353 /* copy pkt to deaggr buf */
1354 skb_deaggr
= mwifiex_alloc_dma_align_buf(len_arr
[pind
],
1358 mwifiex_dbg(adapter
, ERROR
, "skb allocation failure\t"
1359 "drop pkt len=%d type=%d\n",
1361 curr_ptr
+= len_arr
[pind
];
1365 skb_put(skb_deaggr
, len_arr
[pind
]);
1367 if ((pkt_type
== MWIFIEX_TYPE_DATA
||
1368 (pkt_type
== MWIFIEX_TYPE_AGGR_DATA
&&
1369 adapter
->sdio_rx_aggr_enable
)) &&
1370 (pkt_len
<= len_arr
[pind
])) {
1372 memcpy(skb_deaggr
->data
, curr_ptr
, pkt_len
);
1374 skb_trim(skb_deaggr
, pkt_len
);
1376 /* Process de-aggr packet */
1377 mwifiex_decode_rx_packet(adapter
, skb_deaggr
,
1380 mwifiex_dbg(adapter
, ERROR
,
1381 "drop wrong aggr pkt:\t"
1382 "sdio_single_port_rx_aggr=%d\t"
1383 "type=%d len=%d max_len=%d\n",
1384 adapter
->sdio_rx_aggr_enable
,
1385 pkt_type
, pkt_len
, len_arr
[pind
]);
1386 dev_kfree_skb_any(skb_deaggr
);
1388 curr_ptr
+= len_arr
[pind
];
1390 MP_RX_AGGR_BUF_RESET(card
);
1395 mwifiex_dbg(adapter
, INFO
, "info: RX: port: %d, rx_len: %d\n",
1398 skb
= mwifiex_alloc_dma_align_buf(rx_len
, GFP_KERNEL
| GFP_DMA
);
1400 mwifiex_dbg(adapter
, ERROR
,
1401 "single skb allocated fail,\t"
1402 "drop pkt port=%d len=%d\n", port
, rx_len
);
1403 if (mwifiex_sdio_card_to_host(adapter
, &pkt_type
,
1404 card
->mpa_rx
.buf
, rx_len
,
1405 adapter
->ioport
+ port
))
1410 skb_put(skb
, rx_len
);
1412 if (mwifiex_sdio_card_to_host(adapter
, &pkt_type
,
1413 skb
->data
, skb
->len
,
1414 adapter
->ioport
+ port
))
1416 if (!adapter
->sdio_rx_aggr_enable
&&
1417 pkt_type
== MWIFIEX_TYPE_AGGR_DATA
) {
1418 mwifiex_dbg(adapter
, ERROR
, "drop wrong pkt type %d\t"
1419 "current SDIO RX Aggr not enabled\n",
1421 dev_kfree_skb_any(skb
);
1425 mwifiex_decode_rx_packet(adapter
, skb
, pkt_type
);
1427 if (f_post_aggr_cur
) {
1428 mwifiex_dbg(adapter
, INFO
,
1429 "info: current packet aggregation\n");
1430 /* Curr pkt can be aggregated */
1431 mp_rx_aggr_setup(card
, rx_len
, port
);
1436 if (MP_RX_AGGR_IN_PROGRESS(card
))
1437 MP_RX_AGGR_BUF_RESET(card
);
1439 if (f_do_rx_cur
&& skb
)
1440 /* Single transfer pending. Free curr buff also */
1441 dev_kfree_skb_any(skb
);
1447 * This function checks the current interrupt status.
1449 * The following interrupts are checked and handled by this function -
1452 * - Packets received
1454 * Since the firmware does not generate download ready interrupt if the
1455 * port updated is command port only, command sent interrupt checking
1456 * should be done manually, and for every SDIO interrupt.
1458 * In case of Rx packets received, the packets are uploaded from card to
1459 * host and processed accordingly.
1461 static int mwifiex_process_int_status(struct mwifiex_adapter
*adapter
)
1463 struct sdio_mmc_card
*card
= adapter
->card
;
1464 const struct mwifiex_sdio_card_reg
*reg
= card
->reg
;
1467 struct sk_buff
*skb
;
1468 u8 port
= CTRL_PORT
;
1469 u32 len_reg_l
, len_reg_u
;
1472 unsigned long flags
;
1476 spin_lock_irqsave(&adapter
->int_lock
, flags
);
1477 sdio_ireg
= adapter
->int_status
;
1478 adapter
->int_status
= 0;
1479 spin_unlock_irqrestore(&adapter
->int_lock
, flags
);
1484 /* Following interrupt is only for SDIO new mode */
1485 if (sdio_ireg
& DN_LD_CMD_PORT_HOST_INT_STATUS
&& adapter
->cmd_sent
)
1486 adapter
->cmd_sent
= false;
1488 /* Following interrupt is only for SDIO new mode */
1489 if (sdio_ireg
& UP_LD_CMD_PORT_HOST_INT_STATUS
) {
1492 /* read the len of control packet */
1493 rx_len
= card
->mp_regs
[reg
->cmd_rd_len_1
] << 8;
1494 rx_len
|= (u16
)card
->mp_regs
[reg
->cmd_rd_len_0
];
1495 rx_blocks
= DIV_ROUND_UP(rx_len
, MWIFIEX_SDIO_BLOCK_SIZE
);
1496 if (rx_len
<= INTF_HEADER_LEN
||
1497 (rx_blocks
* MWIFIEX_SDIO_BLOCK_SIZE
) >
1498 MWIFIEX_RX_DATA_BUF_SIZE
)
1500 rx_len
= (u16
) (rx_blocks
* MWIFIEX_SDIO_BLOCK_SIZE
);
1501 mwifiex_dbg(adapter
, INFO
, "info: rx_len = %d\n", rx_len
);
1503 skb
= mwifiex_alloc_dma_align_buf(rx_len
, GFP_KERNEL
| GFP_DMA
);
1507 skb_put(skb
, rx_len
);
1509 if (mwifiex_sdio_card_to_host(adapter
, &pkt_type
, skb
->data
,
1510 skb
->len
, adapter
->ioport
|
1512 mwifiex_dbg(adapter
, ERROR
,
1513 "%s: failed to card_to_host", __func__
);
1514 dev_kfree_skb_any(skb
);
1518 if ((pkt_type
!= MWIFIEX_TYPE_CMD
) &&
1519 (pkt_type
!= MWIFIEX_TYPE_EVENT
))
1520 mwifiex_dbg(adapter
, ERROR
,
1521 "%s:Received wrong packet on cmd port",
1524 mwifiex_decode_rx_packet(adapter
, skb
, pkt_type
);
1527 if (sdio_ireg
& DN_LD_HOST_INT_STATUS
) {
1528 bitmap
= (u32
) card
->mp_regs
[reg
->wr_bitmap_l
];
1529 bitmap
|= ((u32
) card
->mp_regs
[reg
->wr_bitmap_u
]) << 8;
1530 if (card
->supports_sdio_new_mode
) {
1532 ((u32
) card
->mp_regs
[reg
->wr_bitmap_1l
]) << 16;
1534 ((u32
) card
->mp_regs
[reg
->wr_bitmap_1u
]) << 24;
1536 card
->mp_wr_bitmap
= bitmap
;
1538 mwifiex_dbg(adapter
, INTR
,
1539 "int: DNLD: wr_bitmap=0x%x\n",
1540 card
->mp_wr_bitmap
);
1541 if (adapter
->data_sent
&&
1542 (card
->mp_wr_bitmap
& card
->mp_data_port_mask
)) {
1543 mwifiex_dbg(adapter
, INTR
,
1544 "info: <--- Tx DONE Interrupt --->\n");
1545 adapter
->data_sent
= false;
1549 /* As firmware will not generate download ready interrupt if the port
1550 updated is command port only, cmd_sent should be done for any SDIO
1552 if (card
->has_control_mask
&& adapter
->cmd_sent
) {
1553 /* Check if firmware has attach buffer at command port and
1554 update just that in wr_bit_map. */
1555 card
->mp_wr_bitmap
|=
1556 (u32
) card
->mp_regs
[reg
->wr_bitmap_l
] & CTRL_PORT_MASK
;
1557 if (card
->mp_wr_bitmap
& CTRL_PORT_MASK
)
1558 adapter
->cmd_sent
= false;
1561 mwifiex_dbg(adapter
, INTR
, "info: cmd_sent=%d data_sent=%d\n",
1562 adapter
->cmd_sent
, adapter
->data_sent
);
1563 if (sdio_ireg
& UP_LD_HOST_INT_STATUS
) {
1564 bitmap
= (u32
) card
->mp_regs
[reg
->rd_bitmap_l
];
1565 bitmap
|= ((u32
) card
->mp_regs
[reg
->rd_bitmap_u
]) << 8;
1566 if (card
->supports_sdio_new_mode
) {
1568 ((u32
) card
->mp_regs
[reg
->rd_bitmap_1l
]) << 16;
1570 ((u32
) card
->mp_regs
[reg
->rd_bitmap_1u
]) << 24;
1572 card
->mp_rd_bitmap
= bitmap
;
1573 mwifiex_dbg(adapter
, INTR
,
1574 "int: UPLD: rd_bitmap=0x%x\n",
1575 card
->mp_rd_bitmap
);
1578 ret
= mwifiex_get_rd_port(adapter
, &port
);
1580 mwifiex_dbg(adapter
, INFO
,
1581 "info: no more rd_port available\n");
1584 len_reg_l
= reg
->rd_len_p0_l
+ (port
<< 1);
1585 len_reg_u
= reg
->rd_len_p0_u
+ (port
<< 1);
1586 rx_len
= ((u16
) card
->mp_regs
[len_reg_u
]) << 8;
1587 rx_len
|= (u16
) card
->mp_regs
[len_reg_l
];
1588 mwifiex_dbg(adapter
, INFO
,
1589 "info: RX: port=%d rx_len=%u\n",
1592 (rx_len
+ MWIFIEX_SDIO_BLOCK_SIZE
-
1593 1) / MWIFIEX_SDIO_BLOCK_SIZE
;
1594 if (rx_len
<= INTF_HEADER_LEN
||
1595 (rx_blocks
* MWIFIEX_SDIO_BLOCK_SIZE
) >
1596 card
->mpa_rx
.buf_size
) {
1597 mwifiex_dbg(adapter
, ERROR
,
1598 "invalid rx_len=%d\n",
1603 rx_len
= (u16
) (rx_blocks
* MWIFIEX_SDIO_BLOCK_SIZE
);
1604 mwifiex_dbg(adapter
, INFO
, "info: rx_len = %d\n",
1607 if (mwifiex_sdio_card_to_host_mp_aggr(adapter
, rx_len
,
1609 mwifiex_dbg(adapter
, ERROR
,
1610 "card_to_host_mpa failed: int status=%#x\n",
1621 if (mwifiex_read_reg(adapter
, CONFIGURATION_REG
, &cr
))
1622 mwifiex_dbg(adapter
, ERROR
, "read CFG reg failed\n");
1624 mwifiex_dbg(adapter
, INFO
,
1625 "info: CFG reg val = %d\n", cr
);
1627 if (mwifiex_write_reg(adapter
, CONFIGURATION_REG
, (cr
| 0x04)))
1628 mwifiex_dbg(adapter
, ERROR
,
1629 "write CFG reg failed\n");
1631 mwifiex_dbg(adapter
, INFO
, "info: write success\n");
1633 if (mwifiex_read_reg(adapter
, CONFIGURATION_REG
, &cr
))
1634 mwifiex_dbg(adapter
, ERROR
,
1635 "read CFG reg failed\n");
1637 mwifiex_dbg(adapter
, INFO
,
1638 "info: CFG reg val =%x\n", cr
);
1644 * This function aggregates transmission buffers in driver and downloads
1645 * the aggregated packet to card.
1647 * The individual packets are aggregated by copying into an aggregation
1648 * buffer and then downloaded to the card. Previous unsent packets in the
1649 * aggregation buffer are pre-copied first before new packets are added.
1650 * Aggregation is done till there is space left in the aggregation buffer,
1651 * or till new packets are available.
1653 * The function will only download the packet to the card when aggregation
1654 * stops, otherwise it will just aggregate the packet in aggregation buffer
1657 static int mwifiex_host_to_card_mp_aggr(struct mwifiex_adapter
*adapter
,
1658 u8
*payload
, u32 pkt_len
, u32 port
,
1661 struct sdio_mmc_card
*card
= adapter
->card
;
1663 s32 f_send_aggr_buf
= 0;
1664 s32 f_send_cur_buf
= 0;
1665 s32 f_precopy_cur_buf
= 0;
1666 s32 f_postcopy_cur_buf
= 0;
1669 if (!card
->mpa_tx
.enabled
||
1670 (card
->has_control_mask
&& (port
== CTRL_PORT
)) ||
1671 (card
->supports_sdio_new_mode
&& (port
== CMD_PORT_SLCT
))) {
1672 mwifiex_dbg(adapter
, WARN
,
1673 "info: %s: tx aggregation disabled\n",
1677 goto tx_curr_single
;
1681 /* More pkt in TX queue */
1682 mwifiex_dbg(adapter
, INFO
,
1683 "info: %s: more packets in queue.\n",
1686 if (MP_TX_AGGR_IN_PROGRESS(card
)) {
1687 if (MP_TX_AGGR_BUF_HAS_ROOM(card
, pkt_len
)) {
1688 f_precopy_cur_buf
= 1;
1690 if (!(card
->mp_wr_bitmap
&
1691 (1 << card
->curr_wr_port
)) ||
1692 !MP_TX_AGGR_BUF_HAS_ROOM(
1693 card
, pkt_len
+ next_pkt_len
))
1694 f_send_aggr_buf
= 1;
1696 /* No room in Aggr buf, send it */
1697 f_send_aggr_buf
= 1;
1699 if (!(card
->mp_wr_bitmap
&
1700 (1 << card
->curr_wr_port
)))
1703 f_postcopy_cur_buf
= 1;
1706 if (MP_TX_AGGR_BUF_HAS_ROOM(card
, pkt_len
) &&
1707 (card
->mp_wr_bitmap
& (1 << card
->curr_wr_port
)))
1708 f_precopy_cur_buf
= 1;
1713 /* Last pkt in TX queue */
1714 mwifiex_dbg(adapter
, INFO
,
1715 "info: %s: Last packet in Tx Queue.\n",
1718 if (MP_TX_AGGR_IN_PROGRESS(card
)) {
1719 /* some packs in Aggr buf already */
1720 f_send_aggr_buf
= 1;
1722 if (MP_TX_AGGR_BUF_HAS_ROOM(card
, pkt_len
))
1723 f_precopy_cur_buf
= 1;
1725 /* No room in Aggr buf, send it */
1732 if (f_precopy_cur_buf
) {
1733 mwifiex_dbg(adapter
, DATA
,
1734 "data: %s: precopy current buffer\n",
1736 MP_TX_AGGR_BUF_PUT(card
, payload
, pkt_len
, port
);
1738 if (MP_TX_AGGR_PKT_LIMIT_REACHED(card
) ||
1739 mp_tx_aggr_port_limit_reached(card
))
1740 /* No more pkts allowed in Aggr buf, send it */
1741 f_send_aggr_buf
= 1;
1744 if (f_send_aggr_buf
) {
1745 mwifiex_dbg(adapter
, DATA
,
1746 "data: %s: send aggr buffer: %d %d\n",
1747 __func__
, card
->mpa_tx
.start_port
,
1748 card
->mpa_tx
.ports
);
1749 if (card
->supports_sdio_new_mode
) {
1753 for (i
= 0, port_count
= 0; i
< card
->max_ports
; i
++)
1754 if (card
->mpa_tx
.ports
& BIT(i
))
1757 /* Writing data from "start_port + 0" to "start_port +
1758 * port_count -1", so decrease the count by 1
1761 mport
= (adapter
->ioport
| SDIO_MPA_ADDR_BASE
|
1762 (port_count
<< 8)) + card
->mpa_tx
.start_port
;
1764 mport
= (adapter
->ioport
| SDIO_MPA_ADDR_BASE
|
1765 (card
->mpa_tx
.ports
<< 4)) +
1766 card
->mpa_tx
.start_port
;
1769 ret
= mwifiex_write_data_to_card(adapter
, card
->mpa_tx
.buf
,
1770 card
->mpa_tx
.buf_len
, mport
);
1772 MP_TX_AGGR_BUF_RESET(card
);
1776 if (f_send_cur_buf
) {
1777 mwifiex_dbg(adapter
, DATA
,
1778 "data: %s: send current buffer %d\n",
1780 ret
= mwifiex_write_data_to_card(adapter
, payload
, pkt_len
,
1781 adapter
->ioport
+ port
);
1784 if (f_postcopy_cur_buf
) {
1785 mwifiex_dbg(adapter
, DATA
,
1786 "data: %s: postcopy current buffer\n",
1788 MP_TX_AGGR_BUF_PUT(card
, payload
, pkt_len
, port
);
1795 * This function downloads data from driver to card.
1797 * Both commands and data packets are transferred to the card by this
1800 * This function adds the SDIO specific header to the front of the buffer
1801 * before transferring. The header contains the length of the packet and
1802 * the type. The firmware handles the packets based upon this set type.
1804 static int mwifiex_sdio_host_to_card(struct mwifiex_adapter
*adapter
,
1805 u8 type
, struct sk_buff
*skb
,
1806 struct mwifiex_tx_param
*tx_param
)
1808 struct sdio_mmc_card
*card
= adapter
->card
;
1812 u32 port
= CTRL_PORT
;
1813 u8
*payload
= (u8
*)skb
->data
;
1814 u32 pkt_len
= skb
->len
;
1816 /* Allocate buffer and copy payload */
1817 blk_size
= MWIFIEX_SDIO_BLOCK_SIZE
;
1818 buf_block_len
= (pkt_len
+ blk_size
- 1) / blk_size
;
1819 *(__le16
*)&payload
[0] = cpu_to_le16((u16
)pkt_len
);
1820 *(__le16
*)&payload
[2] = cpu_to_le16(type
);
1823 * This is SDIO specific header
1825 * u16 type (MWIFIEX_TYPE_DATA = 0, MWIFIEX_TYPE_CMD = 1,
1826 * MWIFIEX_TYPE_EVENT = 3)
1828 if (type
== MWIFIEX_TYPE_DATA
) {
1829 ret
= mwifiex_get_wr_port_data(adapter
, &port
);
1831 mwifiex_dbg(adapter
, ERROR
,
1832 "%s: no wr_port available\n",
1837 adapter
->cmd_sent
= true;
1838 /* Type must be MWIFIEX_TYPE_CMD */
1840 if (pkt_len
<= INTF_HEADER_LEN
||
1841 pkt_len
> MWIFIEX_UPLD_SIZE
)
1842 mwifiex_dbg(adapter
, ERROR
,
1843 "%s: payload=%p, nb=%d\n",
1844 __func__
, payload
, pkt_len
);
1846 if (card
->supports_sdio_new_mode
)
1847 port
= CMD_PORT_SLCT
;
1850 /* Transfer data to card */
1851 pkt_len
= buf_block_len
* blk_size
;
1854 ret
= mwifiex_host_to_card_mp_aggr(adapter
, payload
, pkt_len
,
1855 port
, tx_param
->next_pkt_len
1858 ret
= mwifiex_host_to_card_mp_aggr(adapter
, payload
, pkt_len
,
1862 if (type
== MWIFIEX_TYPE_CMD
)
1863 adapter
->cmd_sent
= false;
1864 if (type
== MWIFIEX_TYPE_DATA
) {
1865 adapter
->data_sent
= false;
1866 /* restore curr_wr_port in error cases */
1867 card
->curr_wr_port
= port
;
1868 card
->mp_wr_bitmap
|= (u32
)(1 << card
->curr_wr_port
);
1871 if (type
== MWIFIEX_TYPE_DATA
) {
1872 if (!(card
->mp_wr_bitmap
& (1 << card
->curr_wr_port
)))
1873 adapter
->data_sent
= true;
1875 adapter
->data_sent
= false;
1883 * This function allocates the MPA Tx and Rx buffers.
1885 static int mwifiex_alloc_sdio_mpa_buffers(struct mwifiex_adapter
*adapter
,
1886 u32 mpa_tx_buf_size
, u32 mpa_rx_buf_size
)
1888 struct sdio_mmc_card
*card
= adapter
->card
;
1892 card
->mpa_tx
.buf
= kzalloc(mpa_tx_buf_size
, GFP_KERNEL
);
1893 if (!card
->mpa_tx
.buf
) {
1898 card
->mpa_tx
.buf_size
= mpa_tx_buf_size
;
1900 rx_buf_size
= max_t(u32
, mpa_rx_buf_size
,
1901 (u32
)SDIO_MAX_AGGR_BUF_SIZE
);
1902 card
->mpa_rx
.buf
= kzalloc(rx_buf_size
, GFP_KERNEL
);
1903 if (!card
->mpa_rx
.buf
) {
1908 card
->mpa_rx
.buf_size
= rx_buf_size
;
1912 kfree(card
->mpa_tx
.buf
);
1913 kfree(card
->mpa_rx
.buf
);
1920 * This function unregisters the SDIO device.
1922 * The SDIO IRQ is released, the function is disabled and driver
1923 * data is set to null.
1926 mwifiex_unregister_dev(struct mwifiex_adapter
*adapter
)
1928 struct sdio_mmc_card
*card
= adapter
->card
;
1930 if (adapter
->card
) {
1931 sdio_claim_host(card
->func
);
1932 sdio_disable_func(card
->func
);
1933 sdio_release_host(card
->func
);
1938 * This function registers the SDIO device.
1940 * SDIO IRQ is claimed, block size is set and driver data is initialized.
1942 static int mwifiex_register_dev(struct mwifiex_adapter
*adapter
)
1945 struct sdio_mmc_card
*card
= adapter
->card
;
1946 struct sdio_func
*func
= card
->func
;
1948 /* save adapter pointer in card */
1949 card
->adapter
= adapter
;
1950 adapter
->tx_buf_size
= card
->tx_buf_size
;
1952 sdio_claim_host(func
);
1954 /* Set block size */
1955 ret
= sdio_set_block_size(card
->func
, MWIFIEX_SDIO_BLOCK_SIZE
);
1956 sdio_release_host(func
);
1958 mwifiex_dbg(adapter
, ERROR
,
1959 "cannot set SDIO block size\n");
1964 adapter
->dev
= &func
->dev
;
1966 strcpy(adapter
->fw_name
, card
->firmware
);
1967 adapter
->mem_type_mapping_tbl
= mem_type_mapping_tbl
;
1968 adapter
->num_mem_types
= ARRAY_SIZE(mem_type_mapping_tbl
);
1974 * This function initializes the SDIO driver.
1976 * The following initializations steps are followed -
1977 * - Read the Host interrupt status register to acknowledge
1978 * the first interrupt got from bootloader
1979 * - Disable host interrupt mask register
1981 * - Initialize SDIO variables in card
1982 * - Allocate MP registers
1983 * - Allocate MPA Tx and Rx buffers
1985 static int mwifiex_init_sdio(struct mwifiex_adapter
*adapter
)
1987 struct sdio_mmc_card
*card
= adapter
->card
;
1988 const struct mwifiex_sdio_card_reg
*reg
= card
->reg
;
1992 sdio_set_drvdata(card
->func
, card
);
1995 * Read the host_int_status_reg for ACK the first interrupt got
1996 * from the bootloader. If we don't do this we get a interrupt
1997 * as soon as we register the irq.
1999 mwifiex_read_reg(adapter
, card
->reg
->host_int_status_reg
, &sdio_ireg
);
2001 /* Get SDIO ioport */
2002 mwifiex_init_sdio_ioport(adapter
);
2004 /* Initialize SDIO variables in card */
2005 card
->mp_rd_bitmap
= 0;
2006 card
->mp_wr_bitmap
= 0;
2007 card
->curr_rd_port
= reg
->start_rd_port
;
2008 card
->curr_wr_port
= reg
->start_wr_port
;
2010 card
->mp_data_port_mask
= reg
->data_port_mask
;
2012 card
->mpa_tx
.buf_len
= 0;
2013 card
->mpa_tx
.pkt_cnt
= 0;
2014 card
->mpa_tx
.start_port
= 0;
2016 card
->mpa_tx
.enabled
= 1;
2017 card
->mpa_tx
.pkt_aggr_limit
= card
->mp_agg_pkt_limit
;
2019 card
->mpa_rx
.buf_len
= 0;
2020 card
->mpa_rx
.pkt_cnt
= 0;
2021 card
->mpa_rx
.start_port
= 0;
2023 card
->mpa_rx
.enabled
= 1;
2024 card
->mpa_rx
.pkt_aggr_limit
= card
->mp_agg_pkt_limit
;
2026 /* Allocate buffers for SDIO MP-A */
2027 card
->mp_regs
= kzalloc(reg
->max_mp_regs
, GFP_KERNEL
);
2031 /* Allocate skb pointer buffers */
2032 card
->mpa_rx
.skb_arr
= kzalloc((sizeof(void *)) *
2033 card
->mp_agg_pkt_limit
, GFP_KERNEL
);
2034 card
->mpa_rx
.len_arr
= kzalloc(sizeof(*card
->mpa_rx
.len_arr
) *
2035 card
->mp_agg_pkt_limit
, GFP_KERNEL
);
2036 ret
= mwifiex_alloc_sdio_mpa_buffers(adapter
,
2037 card
->mp_tx_agg_buf_size
,
2038 card
->mp_rx_agg_buf_size
);
2040 mwifiex_dbg(adapter
, ERROR
,
2041 "failed to alloc sdio mp-a buffers\n");
2042 kfree(card
->mp_regs
);
2046 adapter
->auto_tdls
= card
->can_auto_tdls
;
2047 adapter
->ext_scan
= card
->can_ext_scan
;
2052 * This function resets the MPA Tx and Rx buffers.
2054 static void mwifiex_cleanup_mpa_buf(struct mwifiex_adapter
*adapter
)
2056 struct sdio_mmc_card
*card
= adapter
->card
;
2058 MP_TX_AGGR_BUF_RESET(card
);
2059 MP_RX_AGGR_BUF_RESET(card
);
2063 * This function cleans up the allocated card buffers.
2065 * The following are freed by this function -
2070 static void mwifiex_cleanup_sdio(struct mwifiex_adapter
*adapter
)
2072 struct sdio_mmc_card
*card
= adapter
->card
;
2074 kfree(card
->mp_regs
);
2075 kfree(card
->mpa_rx
.skb_arr
);
2076 kfree(card
->mpa_rx
.len_arr
);
2077 kfree(card
->mpa_tx
.buf
);
2078 kfree(card
->mpa_rx
.buf
);
2079 sdio_set_drvdata(card
->func
, NULL
);
2084 * This function updates the MP end port in card.
2087 mwifiex_update_mp_end_port(struct mwifiex_adapter
*adapter
, u16 port
)
2089 struct sdio_mmc_card
*card
= adapter
->card
;
2090 const struct mwifiex_sdio_card_reg
*reg
= card
->reg
;
2093 card
->mp_end_port
= port
;
2095 card
->mp_data_port_mask
= reg
->data_port_mask
;
2097 if (reg
->start_wr_port
) {
2098 for (i
= 1; i
<= card
->max_ports
- card
->mp_end_port
; i
++)
2099 card
->mp_data_port_mask
&=
2100 ~(1 << (card
->max_ports
- i
));
2103 card
->curr_wr_port
= reg
->start_wr_port
;
2105 mwifiex_dbg(adapter
, CMD
,
2106 "cmd: mp_end_port %d, data port mask 0x%x\n",
2107 port
, card
->mp_data_port_mask
);
2110 static struct mwifiex_adapter
*save_adapter
;
2111 static void mwifiex_sdio_card_reset_work(struct mwifiex_adapter
*adapter
)
2113 struct sdio_mmc_card
*card
= adapter
->card
;
2114 struct mmc_host
*target
= card
->func
->card
->host
;
2116 /* The actual reset operation must be run outside of driver thread.
2117 * This is because mmc_remove_host() will cause the device to be
2118 * instantly destroyed, and the driver then needs to end its thread,
2119 * leading to a deadlock.
2121 * We run it in a totally independent workqueue.
2124 mwifiex_dbg(adapter
, WARN
, "Resetting card...\n");
2125 mmc_remove_host(target
);
2126 /* 200ms delay is based on experiment with sdhci controller */
2128 target
->rescan_entered
= 0; /* rescan non-removable cards */
2129 mmc_add_host(target
);
2132 /* This function read/write firmware */
2134 rdwr_status
mwifiex_sdio_rdwr_firmware(struct mwifiex_adapter
*adapter
,
2137 struct sdio_mmc_card
*card
= adapter
->card
;
2141 sdio_writeb(card
->func
, FW_DUMP_HOST_READY
, card
->reg
->fw_dump_ctrl
,
2144 mwifiex_dbg(adapter
, ERROR
, "SDIO Write ERR\n");
2145 return RDWR_STATUS_FAILURE
;
2147 for (tries
= 0; tries
< MAX_POLL_TRIES
; tries
++) {
2148 ctrl_data
= sdio_readb(card
->func
, card
->reg
->fw_dump_ctrl
,
2151 mwifiex_dbg(adapter
, ERROR
, "SDIO read err\n");
2152 return RDWR_STATUS_FAILURE
;
2154 if (ctrl_data
== FW_DUMP_DONE
)
2156 if (doneflag
&& ctrl_data
== doneflag
)
2157 return RDWR_STATUS_DONE
;
2158 if (ctrl_data
!= FW_DUMP_HOST_READY
) {
2159 mwifiex_dbg(adapter
, WARN
,
2160 "The ctrl reg was changed, re-try again!\n");
2161 sdio_writeb(card
->func
, FW_DUMP_HOST_READY
,
2162 card
->reg
->fw_dump_ctrl
, &ret
);
2164 mwifiex_dbg(adapter
, ERROR
, "SDIO write err\n");
2165 return RDWR_STATUS_FAILURE
;
2168 usleep_range(100, 200);
2170 if (ctrl_data
== FW_DUMP_HOST_READY
) {
2171 mwifiex_dbg(adapter
, ERROR
,
2172 "Fail to pull ctrl_data\n");
2173 return RDWR_STATUS_FAILURE
;
2176 return RDWR_STATUS_SUCCESS
;
2179 /* This function dump firmware memory to file */
2180 static void mwifiex_sdio_fw_dump(struct mwifiex_adapter
*adapter
)
2182 struct sdio_mmc_card
*card
= adapter
->card
;
2184 unsigned int reg
, reg_start
, reg_end
;
2185 u8
*dbg_ptr
, *end_ptr
, dump_num
, idx
, i
, read_reg
, doneflag
= 0;
2186 enum rdwr_status stat
;
2189 if (!card
->can_dump_fw
)
2192 for (idx
= 0; idx
< ARRAY_SIZE(mem_type_mapping_tbl
); idx
++) {
2193 struct memory_type_mapping
*entry
= &mem_type_mapping_tbl
[idx
];
2195 if (entry
->mem_ptr
) {
2196 vfree(entry
->mem_ptr
);
2197 entry
->mem_ptr
= NULL
;
2199 entry
->mem_size
= 0;
2202 mwifiex_pm_wakeup_card(adapter
);
2203 sdio_claim_host(card
->func
);
2205 mwifiex_dbg(adapter
, MSG
, "== mwifiex firmware dump start ==\n");
2207 stat
= mwifiex_sdio_rdwr_firmware(adapter
, doneflag
);
2208 if (stat
== RDWR_STATUS_FAILURE
)
2211 reg
= card
->reg
->fw_dump_start
;
2212 /* Read the number of the memories which will dump */
2213 dump_num
= sdio_readb(card
->func
, reg
, &ret
);
2215 mwifiex_dbg(adapter
, ERROR
, "SDIO read memory length err\n");
2219 /* Read the length of every memory which will dump */
2220 for (idx
= 0; idx
< dump_num
; idx
++) {
2221 struct memory_type_mapping
*entry
= &mem_type_mapping_tbl
[idx
];
2223 stat
= mwifiex_sdio_rdwr_firmware(adapter
, doneflag
);
2224 if (stat
== RDWR_STATUS_FAILURE
)
2228 reg
= card
->reg
->fw_dump_start
;
2229 for (i
= 0; i
< 4; i
++) {
2230 read_reg
= sdio_readb(card
->func
, reg
, &ret
);
2232 mwifiex_dbg(adapter
, ERROR
, "SDIO read err\n");
2235 memory_size
|= (read_reg
<< i
*8);
2239 if (memory_size
== 0) {
2240 mwifiex_dbg(adapter
, DUMP
, "Firmware dump Finished!\n");
2241 ret
= mwifiex_write_reg(adapter
,
2242 card
->reg
->fw_dump_ctrl
,
2245 mwifiex_dbg(adapter
, ERROR
, "SDIO write err\n");
2251 mwifiex_dbg(adapter
, DUMP
,
2252 "%s_SIZE=0x%x\n", entry
->mem_name
, memory_size
);
2253 entry
->mem_ptr
= vmalloc(memory_size
+ 1);
2254 entry
->mem_size
= memory_size
;
2255 if (!entry
->mem_ptr
) {
2256 mwifiex_dbg(adapter
, ERROR
, "Vmalloc %s failed\n",
2260 dbg_ptr
= entry
->mem_ptr
;
2261 end_ptr
= dbg_ptr
+ memory_size
;
2263 doneflag
= entry
->done_flag
;
2264 mwifiex_dbg(adapter
, DUMP
,
2265 "Start %s output, please wait...\n",
2269 stat
= mwifiex_sdio_rdwr_firmware(adapter
, doneflag
);
2270 if (stat
== RDWR_STATUS_FAILURE
)
2273 reg_start
= card
->reg
->fw_dump_start
;
2274 reg_end
= card
->reg
->fw_dump_end
;
2275 for (reg
= reg_start
; reg
<= reg_end
; reg
++) {
2276 *dbg_ptr
= sdio_readb(card
->func
, reg
, &ret
);
2278 mwifiex_dbg(adapter
, ERROR
,
2282 if (dbg_ptr
< end_ptr
)
2285 mwifiex_dbg(adapter
, ERROR
,
2286 "Allocated buf not enough\n");
2289 if (stat
!= RDWR_STATUS_DONE
)
2292 mwifiex_dbg(adapter
, DUMP
, "%s done: size=0x%tx\n",
2293 entry
->mem_name
, dbg_ptr
- entry
->mem_ptr
);
2297 mwifiex_dbg(adapter
, MSG
, "== mwifiex firmware dump end ==\n");
2300 sdio_release_host(card
->func
);
2303 static void mwifiex_sdio_device_dump_work(struct mwifiex_adapter
*adapter
)
2305 mwifiex_drv_info_dump(adapter
);
2306 mwifiex_sdio_fw_dump(adapter
);
2307 mwifiex_upload_device_dump(adapter
);
2310 static void mwifiex_sdio_work(struct work_struct
*work
)
2312 if (test_and_clear_bit(MWIFIEX_IFACE_WORK_DEVICE_DUMP
,
2314 mwifiex_sdio_device_dump_work(save_adapter
);
2315 if (test_and_clear_bit(MWIFIEX_IFACE_WORK_CARD_RESET
,
2317 mwifiex_sdio_card_reset_work(save_adapter
);
2320 static DECLARE_WORK(sdio_work
, mwifiex_sdio_work
);
2321 /* This function resets the card */
2322 static void mwifiex_sdio_card_reset(struct mwifiex_adapter
*adapter
)
2324 save_adapter
= adapter
;
2325 if (test_bit(MWIFIEX_IFACE_WORK_CARD_RESET
, &iface_work_flags
))
2328 set_bit(MWIFIEX_IFACE_WORK_CARD_RESET
, &iface_work_flags
);
2330 schedule_work(&sdio_work
);
2333 /* This function dumps FW information */
2334 static void mwifiex_sdio_device_dump(struct mwifiex_adapter
*adapter
)
2336 save_adapter
= adapter
;
2337 if (test_bit(MWIFIEX_IFACE_WORK_DEVICE_DUMP
, &iface_work_flags
))
2340 set_bit(MWIFIEX_IFACE_WORK_DEVICE_DUMP
, &iface_work_flags
);
2341 schedule_work(&sdio_work
);
2344 /* Function to dump SDIO function registers and SDIO scratch registers in case
2348 mwifiex_sdio_reg_dump(struct mwifiex_adapter
*adapter
, char *drv_buf
)
2351 struct sdio_mmc_card
*cardp
= adapter
->card
;
2353 u8 count
, func
, data
, index
= 0, size
= 0;
2354 u8 reg
, reg_start
, reg_end
;
2355 char buf
[256], *ptr
;
2360 mwifiex_dbg(adapter
, MSG
, "SDIO register dump start\n");
2362 mwifiex_pm_wakeup_card(adapter
);
2364 sdio_claim_host(cardp
->func
);
2366 for (count
= 0; count
< 5; count
++) {
2367 memset(buf
, 0, sizeof(buf
));
2372 /* Read the registers of SDIO function0 */
2378 /* Read the registers of SDIO function1 */
2380 reg_start
= cardp
->reg
->func1_dump_reg_start
;
2381 reg_end
= cardp
->reg
->func1_dump_reg_end
;
2386 reg_start
= cardp
->reg
->func1_spec_reg_table
[index
++];
2387 size
= cardp
->reg
->func1_spec_reg_num
;
2388 reg_end
= cardp
->reg
->func1_spec_reg_table
[size
-1];
2391 /* Read the scratch registers of SDIO function1 */
2395 reg_start
= cardp
->reg
->func1_scratch_reg
;
2396 reg_end
= reg_start
+ MWIFIEX_SDIO_SCRATCH_SIZE
;
2400 ptr
+= sprintf(ptr
, "SDIO Func%d (%#x-%#x): ",
2401 func
, reg_start
, reg_end
);
2403 ptr
+= sprintf(ptr
, "SDIO Func%d: ", func
);
2405 for (reg
= reg_start
; reg
<= reg_end
;) {
2407 data
= sdio_f0_readb(cardp
->func
, reg
, &ret
);
2409 data
= sdio_readb(cardp
->func
, reg
, &ret
);
2412 ptr
+= sprintf(ptr
, "(%#x) ", reg
);
2414 ptr
+= sprintf(ptr
, "%02x ", data
);
2416 ptr
+= sprintf(ptr
, "ERR");
2420 if (count
== 2 && reg
< reg_end
)
2421 reg
= cardp
->reg
->func1_spec_reg_table
[index
++];
2426 mwifiex_dbg(adapter
, MSG
, "%s\n", buf
);
2427 p
+= sprintf(p
, "%s\n", buf
);
2430 sdio_release_host(cardp
->func
);
2432 mwifiex_dbg(adapter
, MSG
, "SDIO register dump end\n");
2437 static struct mwifiex_if_ops sdio_ops
= {
2438 .init_if
= mwifiex_init_sdio
,
2439 .cleanup_if
= mwifiex_cleanup_sdio
,
2440 .check_fw_status
= mwifiex_check_fw_status
,
2441 .prog_fw
= mwifiex_prog_fw_w_helper
,
2442 .register_dev
= mwifiex_register_dev
,
2443 .unregister_dev
= mwifiex_unregister_dev
,
2444 .enable_int
= mwifiex_sdio_enable_host_int
,
2445 .disable_int
= mwifiex_sdio_disable_host_int
,
2446 .process_int_status
= mwifiex_process_int_status
,
2447 .host_to_card
= mwifiex_sdio_host_to_card
,
2448 .wakeup
= mwifiex_pm_wakeup_card
,
2449 .wakeup_complete
= mwifiex_pm_wakeup_card_complete
,
2452 .update_mp_end_port
= mwifiex_update_mp_end_port
,
2453 .cleanup_mpa_buf
= mwifiex_cleanup_mpa_buf
,
2454 .cmdrsp_complete
= mwifiex_sdio_cmdrsp_complete
,
2455 .event_complete
= mwifiex_sdio_event_complete
,
2456 .card_reset
= mwifiex_sdio_card_reset
,
2457 .reg_dump
= mwifiex_sdio_reg_dump
,
2458 .device_dump
= mwifiex_sdio_device_dump
,
2459 .deaggr_pkt
= mwifiex_deaggr_sdio_pkt
,
2463 * This function initializes the SDIO driver.
2465 * This initiates the semaphore and registers the device with
2469 mwifiex_sdio_init_module(void)
2471 sema_init(&add_remove_card_sem
, 1);
2473 /* Clear the flag in case user removes the card. */
2476 return sdio_register_driver(&mwifiex_sdio
);
2480 * This function cleans up the SDIO driver.
2482 * The following major steps are followed for cleanup -
2483 * - Resume the device if its suspended
2484 * - Disconnect the device if connected
2485 * - Shutdown the firmware
2486 * - Unregister the device from SDIO bus.
2489 mwifiex_sdio_cleanup_module(void)
2491 if (!down_interruptible(&add_remove_card_sem
))
2492 up(&add_remove_card_sem
);
2494 /* Set the flag as user is removing this module. */
2496 cancel_work_sync(&sdio_work
);
2498 sdio_unregister_driver(&mwifiex_sdio
);
2501 module_init(mwifiex_sdio_init_module
);
2502 module_exit(mwifiex_sdio_cleanup_module
);
2504 MODULE_AUTHOR("Marvell International Ltd.");
2505 MODULE_DESCRIPTION("Marvell WiFi-Ex SDIO Driver version " SDIO_VERSION
);
2506 MODULE_VERSION(SDIO_VERSION
);
2507 MODULE_LICENSE("GPL v2");
2508 MODULE_FIRMWARE(SD8786_DEFAULT_FW_NAME
);
2509 MODULE_FIRMWARE(SD8787_DEFAULT_FW_NAME
);
2510 MODULE_FIRMWARE(SD8797_DEFAULT_FW_NAME
);
2511 MODULE_FIRMWARE(SD8897_DEFAULT_FW_NAME
);
2512 MODULE_FIRMWARE(SD8887_DEFAULT_FW_NAME
);