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 generic_mem_type_map
[] = {
55 {"DUMP", NULL
, 0, 0xDD},
58 static struct memory_type_mapping mem_type_mapping_tbl
[] = {
59 {"ITCM", NULL
, 0, 0xF0},
60 {"DTCM", NULL
, 0, 0xF1},
61 {"SQRAM", NULL
, 0, 0xF2},
62 {"APU", NULL
, 0, 0xF3},
63 {"CIU", NULL
, 0, 0xF4},
64 {"ICU", NULL
, 0, 0xF5},
65 {"MAC", NULL
, 0, 0xF6},
66 {"EXT7", NULL
, 0, 0xF7},
67 {"EXT8", NULL
, 0, 0xF8},
68 {"EXT9", NULL
, 0, 0xF9},
69 {"EXT10", NULL
, 0, 0xFA},
70 {"EXT11", NULL
, 0, 0xFB},
71 {"EXT12", NULL
, 0, 0xFC},
72 {"EXT13", NULL
, 0, 0xFD},
73 {"EXTLAST", NULL
, 0, 0xFE},
79 * This function probes an mwifiex device and registers it. It allocates
80 * the card structure, enables SDIO function number and initiates the
81 * device registration and initialization procedure by adding a logical
85 mwifiex_sdio_probe(struct sdio_func
*func
, const struct sdio_device_id
*id
)
88 struct sdio_mmc_card
*card
= NULL
;
90 pr_debug("info: vendor=0x%4.04X device=0x%4.04X class=%d function=%d\n",
91 func
->vendor
, func
->device
, func
->class, func
->num
);
93 card
= kzalloc(sizeof(struct sdio_mmc_card
), GFP_KERNEL
);
100 func
->card
->quirks
|= MMC_QUIRK_BLKSZ_FOR_BYTE_MODE
;
102 if (id
->driver_data
) {
103 struct mwifiex_sdio_device
*data
= (void *)id
->driver_data
;
105 card
->firmware
= data
->firmware
;
106 card
->reg
= data
->reg
;
107 card
->max_ports
= data
->max_ports
;
108 card
->mp_agg_pkt_limit
= data
->mp_agg_pkt_limit
;
109 card
->supports_sdio_new_mode
= data
->supports_sdio_new_mode
;
110 card
->has_control_mask
= data
->has_control_mask
;
111 card
->tx_buf_size
= data
->tx_buf_size
;
112 card
->mp_tx_agg_buf_size
= data
->mp_tx_agg_buf_size
;
113 card
->mp_rx_agg_buf_size
= data
->mp_rx_agg_buf_size
;
114 card
->can_dump_fw
= data
->can_dump_fw
;
115 card
->fw_dump_enh
= data
->fw_dump_enh
;
116 card
->can_auto_tdls
= data
->can_auto_tdls
;
117 card
->can_ext_scan
= data
->can_ext_scan
;
120 sdio_claim_host(func
);
121 ret
= sdio_enable_func(func
);
122 sdio_release_host(func
);
125 pr_err("%s: failed to enable function\n", __func__
);
130 if (mwifiex_add_card(card
, &add_remove_card_sem
, &sdio_ops
,
132 pr_err("%s: add card failed\n", __func__
);
134 sdio_claim_host(func
);
135 ret
= sdio_disable_func(func
);
136 sdio_release_host(func
);
146 * Kernel needs to suspend all functions separately. Therefore all
147 * registered functions must have drivers with suspend and resume
148 * methods. Failing that the kernel simply removes the whole card.
150 * If already not resumed, this function turns on the traffic and
151 * sends a host sleep cancel request to the firmware.
153 static int mwifiex_sdio_resume(struct device
*dev
)
155 struct sdio_func
*func
= dev_to_sdio_func(dev
);
156 struct sdio_mmc_card
*card
;
157 struct mwifiex_adapter
*adapter
;
158 mmc_pm_flag_t pm_flag
= 0;
161 pm_flag
= sdio_get_host_pm_caps(func
);
162 card
= sdio_get_drvdata(func
);
163 if (!card
|| !card
->adapter
) {
164 pr_err("resume: invalid card or adapter\n");
168 pr_err("resume: sdio_func is not specified\n");
172 adapter
= card
->adapter
;
174 if (!adapter
->is_suspended
) {
175 mwifiex_dbg(adapter
, WARN
,
176 "device already resumed\n");
180 adapter
->is_suspended
= false;
182 /* Disable Host Sleep */
183 mwifiex_cancel_hs(mwifiex_get_priv(adapter
, MWIFIEX_BSS_ROLE_STA
),
192 * This function removes the interface and frees up the card structure.
195 mwifiex_sdio_remove(struct sdio_func
*func
)
197 struct sdio_mmc_card
*card
;
198 struct mwifiex_adapter
*adapter
;
199 struct mwifiex_private
*priv
;
201 card
= sdio_get_drvdata(func
);
205 adapter
= card
->adapter
;
206 if (!adapter
|| !adapter
->priv_num
)
209 mwifiex_dbg(adapter
, INFO
, "info: SDIO func num=%d\n", func
->num
);
212 if (adapter
->is_suspended
)
213 mwifiex_sdio_resume(adapter
->dev
);
215 mwifiex_deauthenticate_all(adapter
);
217 priv
= mwifiex_get_priv(adapter
, MWIFIEX_BSS_ROLE_ANY
);
218 mwifiex_disable_auto_ds(priv
);
219 mwifiex_init_shutdown_fw(priv
, MWIFIEX_FUNC_SHUTDOWN
);
222 mwifiex_remove_card(card
->adapter
, &add_remove_card_sem
);
228 * Kernel needs to suspend all functions separately. Therefore all
229 * registered functions must have drivers with suspend and resume
230 * methods. Failing that the kernel simply removes the whole card.
232 * If already not suspended, this function allocates and sends a host
233 * sleep activate request to the firmware and turns off the traffic.
235 static int mwifiex_sdio_suspend(struct device
*dev
)
237 struct sdio_func
*func
= dev_to_sdio_func(dev
);
238 struct sdio_mmc_card
*card
;
239 struct mwifiex_adapter
*adapter
;
240 mmc_pm_flag_t pm_flag
= 0;
244 pm_flag
= sdio_get_host_pm_caps(func
);
245 pr_debug("cmd: %s: suspend: PM flag = 0x%x\n",
246 sdio_func_id(func
), pm_flag
);
247 if (!(pm_flag
& MMC_PM_KEEP_POWER
)) {
248 pr_err("%s: cannot remain alive while host is"
249 " suspended\n", sdio_func_id(func
));
253 card
= sdio_get_drvdata(func
);
254 if (!card
|| !card
->adapter
) {
255 pr_err("suspend: invalid card or adapter\n");
259 pr_err("suspend: sdio_func is not specified\n");
263 adapter
= card
->adapter
;
265 /* Enable the Host Sleep */
266 if (!mwifiex_enable_hs(adapter
)) {
267 mwifiex_dbg(adapter
, ERROR
,
268 "cmd: failed to suspend\n");
269 adapter
->hs_enabling
= false;
273 mwifiex_dbg(adapter
, INFO
,
274 "cmd: suspend with MMC_PM_KEEP_POWER\n");
275 ret
= sdio_set_host_pm_flags(func
, MMC_PM_KEEP_POWER
);
277 /* Indicate device suspended */
278 adapter
->is_suspended
= true;
279 adapter
->hs_enabling
= false;
284 /* Device ID for SD8786 */
285 #define SDIO_DEVICE_ID_MARVELL_8786 (0x9116)
286 /* Device ID for SD8787 */
287 #define SDIO_DEVICE_ID_MARVELL_8787 (0x9119)
288 /* Device ID for SD8797 */
289 #define SDIO_DEVICE_ID_MARVELL_8797 (0x9129)
290 /* Device ID for SD8897 */
291 #define SDIO_DEVICE_ID_MARVELL_8897 (0x912d)
292 /* Device ID for SD8887 */
293 #define SDIO_DEVICE_ID_MARVELL_8887 (0x9135)
294 /* Device ID for SD8801 */
295 #define SDIO_DEVICE_ID_MARVELL_8801 (0x9139)
296 /* Device ID for SD8997 */
297 #define SDIO_DEVICE_ID_MARVELL_8997 (0x9141)
301 static const struct sdio_device_id mwifiex_ids
[] = {
302 {SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL
, SDIO_DEVICE_ID_MARVELL_8786
),
303 .driver_data
= (unsigned long) &mwifiex_sdio_sd8786
},
304 {SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL
, SDIO_DEVICE_ID_MARVELL_8787
),
305 .driver_data
= (unsigned long) &mwifiex_sdio_sd8787
},
306 {SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL
, SDIO_DEVICE_ID_MARVELL_8797
),
307 .driver_data
= (unsigned long) &mwifiex_sdio_sd8797
},
308 {SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL
, SDIO_DEVICE_ID_MARVELL_8897
),
309 .driver_data
= (unsigned long) &mwifiex_sdio_sd8897
},
310 {SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL
, SDIO_DEVICE_ID_MARVELL_8887
),
311 .driver_data
= (unsigned long)&mwifiex_sdio_sd8887
},
312 {SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL
, SDIO_DEVICE_ID_MARVELL_8801
),
313 .driver_data
= (unsigned long)&mwifiex_sdio_sd8801
},
314 {SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL
, SDIO_DEVICE_ID_MARVELL_8997
),
315 .driver_data
= (unsigned long)&mwifiex_sdio_sd8997
},
319 MODULE_DEVICE_TABLE(sdio
, mwifiex_ids
);
321 static const struct dev_pm_ops mwifiex_sdio_pm_ops
= {
322 .suspend
= mwifiex_sdio_suspend
,
323 .resume
= mwifiex_sdio_resume
,
326 static struct sdio_driver mwifiex_sdio
= {
327 .name
= "mwifiex_sdio",
328 .id_table
= mwifiex_ids
,
329 .probe
= mwifiex_sdio_probe
,
330 .remove
= mwifiex_sdio_remove
,
332 .owner
= THIS_MODULE
,
333 .pm
= &mwifiex_sdio_pm_ops
,
337 /* Write data into SDIO card register. Caller claims SDIO device. */
339 mwifiex_write_reg_locked(struct sdio_func
*func
, u32 reg
, u8 data
)
342 sdio_writeb(func
, data
, reg
, &ret
);
347 * This function writes data into SDIO card register.
350 mwifiex_write_reg(struct mwifiex_adapter
*adapter
, u32 reg
, u8 data
)
352 struct sdio_mmc_card
*card
= adapter
->card
;
355 sdio_claim_host(card
->func
);
356 ret
= mwifiex_write_reg_locked(card
->func
, reg
, data
);
357 sdio_release_host(card
->func
);
363 * This function reads data from SDIO card register.
366 mwifiex_read_reg(struct mwifiex_adapter
*adapter
, u32 reg
, u8
*data
)
368 struct sdio_mmc_card
*card
= adapter
->card
;
372 sdio_claim_host(card
->func
);
373 val
= sdio_readb(card
->func
, reg
, &ret
);
374 sdio_release_host(card
->func
);
382 * This function writes multiple data into SDIO card memory.
384 * This does not work in suspended mode.
387 mwifiex_write_data_sync(struct mwifiex_adapter
*adapter
,
388 u8
*buffer
, u32 pkt_len
, u32 port
)
390 struct sdio_mmc_card
*card
= adapter
->card
;
393 (port
& MWIFIEX_SDIO_BYTE_MODE_MASK
) ? BYTE_MODE
: BLOCK_MODE
;
394 u32 blk_size
= (blk_mode
== BLOCK_MODE
) ? MWIFIEX_SDIO_BLOCK_SIZE
: 1;
397 BLOCK_MODE
) ? (pkt_len
/
398 MWIFIEX_SDIO_BLOCK_SIZE
) : pkt_len
;
399 u32 ioport
= (port
& MWIFIEX_SDIO_IO_PORT_MASK
);
401 if (adapter
->is_suspended
) {
402 mwifiex_dbg(adapter
, ERROR
,
403 "%s: not allowed while suspended\n", __func__
);
407 sdio_claim_host(card
->func
);
409 ret
= sdio_writesb(card
->func
, ioport
, buffer
, blk_cnt
* blk_size
);
411 sdio_release_host(card
->func
);
417 * This function reads multiple data from SDIO card memory.
419 static int mwifiex_read_data_sync(struct mwifiex_adapter
*adapter
, u8
*buffer
,
420 u32 len
, u32 port
, u8 claim
)
422 struct sdio_mmc_card
*card
= adapter
->card
;
424 u8 blk_mode
= (port
& MWIFIEX_SDIO_BYTE_MODE_MASK
) ? BYTE_MODE
426 u32 blk_size
= (blk_mode
== BLOCK_MODE
) ? MWIFIEX_SDIO_BLOCK_SIZE
: 1;
427 u32 blk_cnt
= (blk_mode
== BLOCK_MODE
) ? (len
/ MWIFIEX_SDIO_BLOCK_SIZE
)
429 u32 ioport
= (port
& MWIFIEX_SDIO_IO_PORT_MASK
);
432 sdio_claim_host(card
->func
);
434 ret
= sdio_readsb(card
->func
, buffer
, ioport
, blk_cnt
* blk_size
);
437 sdio_release_host(card
->func
);
443 * This function wakes up the card.
445 * A host power up command is written to the card configuration
446 * register to wake up the card.
448 static int mwifiex_pm_wakeup_card(struct mwifiex_adapter
*adapter
)
450 mwifiex_dbg(adapter
, EVENT
,
451 "event: wakeup device...\n");
453 return mwifiex_write_reg(adapter
, CONFIGURATION_REG
, HOST_POWER_UP
);
457 * This function is called after the card has woken up.
459 * The card configuration register is reset.
461 static int mwifiex_pm_wakeup_card_complete(struct mwifiex_adapter
*adapter
)
463 mwifiex_dbg(adapter
, EVENT
,
464 "cmd: wakeup device completed\n");
466 return mwifiex_write_reg(adapter
, CONFIGURATION_REG
, 0);
470 * This function is used to initialize IO ports for the
471 * chipsets supporting SDIO new mode eg SD8897.
473 static int mwifiex_init_sdio_new_mode(struct mwifiex_adapter
*adapter
)
476 struct sdio_mmc_card
*card
= adapter
->card
;
478 adapter
->ioport
= MEM_PORT
;
480 /* enable sdio new mode */
481 if (mwifiex_read_reg(adapter
, card
->reg
->card_cfg_2_1_reg
, ®
))
483 if (mwifiex_write_reg(adapter
, card
->reg
->card_cfg_2_1_reg
,
484 reg
| CMD53_NEW_MODE
))
487 /* Configure cmd port and enable reading rx length from the register */
488 if (mwifiex_read_reg(adapter
, card
->reg
->cmd_cfg_0
, ®
))
490 if (mwifiex_write_reg(adapter
, card
->reg
->cmd_cfg_0
,
491 reg
| CMD_PORT_RD_LEN_EN
))
494 /* Enable Dnld/Upld ready auto reset for cmd port after cmd53 is
497 if (mwifiex_read_reg(adapter
, card
->reg
->cmd_cfg_1
, ®
))
499 if (mwifiex_write_reg(adapter
, card
->reg
->cmd_cfg_1
,
500 reg
| CMD_PORT_AUTO_EN
))
506 /* This function initializes the IO ports.
508 * The following operations are performed -
509 * - Read the IO ports (0, 1 and 2)
510 * - Set host interrupt Reset-To-Read to clear
511 * - Set auto re-enable interrupt
513 static int mwifiex_init_sdio_ioport(struct mwifiex_adapter
*adapter
)
516 struct sdio_mmc_card
*card
= adapter
->card
;
520 if (card
->supports_sdio_new_mode
) {
521 if (mwifiex_init_sdio_new_mode(adapter
))
526 /* Read the IO port */
527 if (!mwifiex_read_reg(adapter
, card
->reg
->io_port_0_reg
, ®
))
528 adapter
->ioport
|= (reg
& 0xff);
532 if (!mwifiex_read_reg(adapter
, card
->reg
->io_port_1_reg
, ®
))
533 adapter
->ioport
|= ((reg
& 0xff) << 8);
537 if (!mwifiex_read_reg(adapter
, card
->reg
->io_port_2_reg
, ®
))
538 adapter
->ioport
|= ((reg
& 0xff) << 16);
542 mwifiex_dbg(adapter
, INFO
,
543 "info: SDIO FUNC1 IO port: %#x\n", adapter
->ioport
);
545 /* Set Host interrupt reset to read to clear */
546 if (!mwifiex_read_reg(adapter
, card
->reg
->host_int_rsr_reg
, ®
))
547 mwifiex_write_reg(adapter
, card
->reg
->host_int_rsr_reg
,
548 reg
| card
->reg
->sdio_int_mask
);
552 /* Dnld/Upld ready set to auto reset */
553 if (!mwifiex_read_reg(adapter
, card
->reg
->card_misc_cfg_reg
, ®
))
554 mwifiex_write_reg(adapter
, card
->reg
->card_misc_cfg_reg
,
555 reg
| AUTO_RE_ENABLE_INT
);
563 * This function sends data to the card.
565 static int mwifiex_write_data_to_card(struct mwifiex_adapter
*adapter
,
566 u8
*payload
, u32 pkt_len
, u32 port
)
572 ret
= mwifiex_write_data_sync(adapter
, payload
, pkt_len
, port
);
575 mwifiex_dbg(adapter
, ERROR
,
576 "host_to_card, write iomem\t"
577 "(%d) failed: %d\n", i
, ret
);
578 if (mwifiex_write_reg(adapter
, CONFIGURATION_REG
, 0x04))
579 mwifiex_dbg(adapter
, ERROR
,
580 "write CFG reg failed\n");
583 if (i
> MAX_WRITE_IOMEM_RETRY
)
592 * This function gets the read port.
594 * If control port bit is set in MP read bitmap, the control port
595 * is returned, otherwise the current read port is returned and
596 * the value is increased (provided it does not reach the maximum
597 * limit, in which case it is reset to 1)
599 static int mwifiex_get_rd_port(struct mwifiex_adapter
*adapter
, u8
*port
)
601 struct sdio_mmc_card
*card
= adapter
->card
;
602 const struct mwifiex_sdio_card_reg
*reg
= card
->reg
;
603 u32 rd_bitmap
= card
->mp_rd_bitmap
;
605 mwifiex_dbg(adapter
, DATA
,
606 "data: mp_rd_bitmap=0x%08x\n", rd_bitmap
);
608 if (card
->supports_sdio_new_mode
) {
609 if (!(rd_bitmap
& reg
->data_port_mask
))
612 if (!(rd_bitmap
& (CTRL_PORT_MASK
| reg
->data_port_mask
)))
616 if ((card
->has_control_mask
) &&
617 (card
->mp_rd_bitmap
& CTRL_PORT_MASK
)) {
618 card
->mp_rd_bitmap
&= (u32
) (~CTRL_PORT_MASK
);
620 mwifiex_dbg(adapter
, DATA
,
621 "data: port=%d mp_rd_bitmap=0x%08x\n",
622 *port
, card
->mp_rd_bitmap
);
626 if (!(card
->mp_rd_bitmap
& (1 << card
->curr_rd_port
)))
629 /* We are now handling the SDIO data ports */
630 card
->mp_rd_bitmap
&= (u32
)(~(1 << card
->curr_rd_port
));
631 *port
= card
->curr_rd_port
;
633 if (++card
->curr_rd_port
== card
->max_ports
)
634 card
->curr_rd_port
= reg
->start_rd_port
;
636 mwifiex_dbg(adapter
, DATA
,
637 "data: port=%d mp_rd_bitmap=0x%08x -> 0x%08x\n",
638 *port
, rd_bitmap
, card
->mp_rd_bitmap
);
644 * This function gets the write port for data.
646 * The current write port is returned if available and the value is
647 * increased (provided it does not reach the maximum limit, in which
648 * case it is reset to 1)
650 static int mwifiex_get_wr_port_data(struct mwifiex_adapter
*adapter
, u32
*port
)
652 struct sdio_mmc_card
*card
= adapter
->card
;
653 const struct mwifiex_sdio_card_reg
*reg
= card
->reg
;
654 u32 wr_bitmap
= card
->mp_wr_bitmap
;
656 mwifiex_dbg(adapter
, DATA
,
657 "data: mp_wr_bitmap=0x%08x\n", wr_bitmap
);
659 if (!(wr_bitmap
& card
->mp_data_port_mask
)) {
660 adapter
->data_sent
= true;
664 if (card
->mp_wr_bitmap
& (1 << card
->curr_wr_port
)) {
665 card
->mp_wr_bitmap
&= (u32
) (~(1 << card
->curr_wr_port
));
666 *port
= card
->curr_wr_port
;
667 if (++card
->curr_wr_port
== card
->mp_end_port
)
668 card
->curr_wr_port
= reg
->start_wr_port
;
670 adapter
->data_sent
= true;
674 if ((card
->has_control_mask
) && (*port
== CTRL_PORT
)) {
675 mwifiex_dbg(adapter
, ERROR
,
676 "invalid data port=%d cur port=%d mp_wr_bitmap=0x%08x -> 0x%08x\n",
677 *port
, card
->curr_wr_port
, wr_bitmap
,
682 mwifiex_dbg(adapter
, DATA
,
683 "data: port=%d mp_wr_bitmap=0x%08x -> 0x%08x\n",
684 *port
, wr_bitmap
, card
->mp_wr_bitmap
);
690 * This function polls the card status.
693 mwifiex_sdio_poll_card_status(struct mwifiex_adapter
*adapter
, u8 bits
)
695 struct sdio_mmc_card
*card
= adapter
->card
;
699 for (tries
= 0; tries
< MAX_POLL_TRIES
; tries
++) {
700 if (mwifiex_read_reg(adapter
, card
->reg
->poll_reg
, &cs
))
702 else if ((cs
& bits
) == bits
)
705 usleep_range(10, 20);
708 mwifiex_dbg(adapter
, ERROR
,
709 "poll card status failed, tries = %d\n", tries
);
715 * This function reads the firmware status.
718 mwifiex_sdio_read_fw_status(struct mwifiex_adapter
*adapter
, u16
*dat
)
720 struct sdio_mmc_card
*card
= adapter
->card
;
721 const struct mwifiex_sdio_card_reg
*reg
= card
->reg
;
724 if (mwifiex_read_reg(adapter
, reg
->status_reg_0
, &fws0
))
727 if (mwifiex_read_reg(adapter
, reg
->status_reg_1
, &fws1
))
730 *dat
= (u16
) ((fws1
<< 8) | fws0
);
736 * This function disables the host interrupt.
738 * The host interrupt mask is read, the disable bit is reset and
739 * written back to the card host interrupt mask register.
741 static void mwifiex_sdio_disable_host_int(struct mwifiex_adapter
*adapter
)
743 struct sdio_mmc_card
*card
= adapter
->card
;
744 struct sdio_func
*func
= card
->func
;
746 sdio_claim_host(func
);
747 mwifiex_write_reg_locked(func
, card
->reg
->host_int_mask_reg
, 0);
748 sdio_release_irq(func
);
749 sdio_release_host(func
);
753 * This function reads the interrupt status from card.
755 static void mwifiex_interrupt_status(struct mwifiex_adapter
*adapter
)
757 struct sdio_mmc_card
*card
= adapter
->card
;
761 if (mwifiex_read_data_sync(adapter
, card
->mp_regs
,
762 card
->reg
->max_mp_regs
,
763 REG_PORT
| MWIFIEX_SDIO_BYTE_MODE_MASK
, 0)) {
764 mwifiex_dbg(adapter
, ERROR
, "read mp_regs failed\n");
768 sdio_ireg
= card
->mp_regs
[card
->reg
->host_int_status_reg
];
771 * DN_LD_HOST_INT_STATUS and/or UP_LD_HOST_INT_STATUS
772 * For SDIO new mode CMD port interrupts
773 * DN_LD_CMD_PORT_HOST_INT_STATUS and/or
774 * UP_LD_CMD_PORT_HOST_INT_STATUS
775 * Clear the interrupt status register
777 mwifiex_dbg(adapter
, INTR
,
778 "int: sdio_ireg = %#x\n", sdio_ireg
);
779 spin_lock_irqsave(&adapter
->int_lock
, flags
);
780 adapter
->int_status
|= sdio_ireg
;
781 spin_unlock_irqrestore(&adapter
->int_lock
, flags
);
786 * SDIO interrupt handler.
788 * This function reads the interrupt status from firmware and handles
789 * the interrupt in current thread (ksdioirqd) right away.
792 mwifiex_sdio_interrupt(struct sdio_func
*func
)
794 struct mwifiex_adapter
*adapter
;
795 struct sdio_mmc_card
*card
;
797 card
= sdio_get_drvdata(func
);
798 if (!card
|| !card
->adapter
) {
799 pr_err("int: func=%p card=%p adapter=%p\n",
800 func
, card
, card
? card
->adapter
: NULL
);
803 adapter
= card
->adapter
;
805 if (!adapter
->pps_uapsd_mode
&& adapter
->ps_state
== PS_STATE_SLEEP
)
806 adapter
->ps_state
= PS_STATE_AWAKE
;
808 mwifiex_interrupt_status(adapter
);
809 mwifiex_main_process(adapter
);
813 * This function enables the host interrupt.
815 * The host interrupt enable mask is written to the card
816 * host interrupt mask register.
818 static int mwifiex_sdio_enable_host_int(struct mwifiex_adapter
*adapter
)
820 struct sdio_mmc_card
*card
= adapter
->card
;
821 struct sdio_func
*func
= card
->func
;
824 sdio_claim_host(func
);
826 /* Request the SDIO IRQ */
827 ret
= sdio_claim_irq(func
, mwifiex_sdio_interrupt
);
829 mwifiex_dbg(adapter
, ERROR
,
830 "claim irq failed: ret=%d\n", ret
);
834 /* Simply write the mask to the register */
835 ret
= mwifiex_write_reg_locked(func
, card
->reg
->host_int_mask_reg
,
836 card
->reg
->host_int_enable
);
838 mwifiex_dbg(adapter
, ERROR
,
839 "enable host interrupt failed\n");
840 sdio_release_irq(func
);
844 sdio_release_host(func
);
849 * This function sends a data buffer to the card.
851 static int mwifiex_sdio_card_to_host(struct mwifiex_adapter
*adapter
,
852 u32
*type
, u8
*buffer
,
853 u32 npayload
, u32 ioport
)
859 mwifiex_dbg(adapter
, ERROR
,
860 "%s: buffer is NULL\n", __func__
);
864 ret
= mwifiex_read_data_sync(adapter
, buffer
, npayload
, ioport
, 1);
867 mwifiex_dbg(adapter
, ERROR
,
868 "%s: read iomem failed: %d\n", __func__
,
873 nb
= le16_to_cpu(*(__le16
*) (buffer
));
875 mwifiex_dbg(adapter
, ERROR
,
876 "%s: invalid packet, nb=%d npayload=%d\n",
877 __func__
, nb
, npayload
);
881 *type
= le16_to_cpu(*(__le16
*) (buffer
+ 2));
887 * This function downloads the firmware to the card.
889 * Firmware is downloaded to the card in blocks. Every block download
890 * is tested for CRC errors, and retried a number of times before
893 static int mwifiex_prog_fw_w_helper(struct mwifiex_adapter
*adapter
,
894 struct mwifiex_fw_image
*fw
)
896 struct sdio_mmc_card
*card
= adapter
->card
;
897 const struct mwifiex_sdio_card_reg
*reg
= card
->reg
;
899 u8
*firmware
= fw
->fw_buf
;
900 u32 firmware_len
= fw
->fw_len
;
905 u32 txlen
, tx_blocks
= 0, tries
;
909 mwifiex_dbg(adapter
, ERROR
,
910 "firmware image not found! Terminating download\n");
914 mwifiex_dbg(adapter
, INFO
,
915 "info: downloading FW image (%d bytes)\n",
918 /* Assume that the allocated buffer is 8-byte aligned */
919 fwbuf
= kzalloc(MWIFIEX_UPLD_SIZE
, GFP_KERNEL
);
923 sdio_claim_host(card
->func
);
925 /* Perform firmware data transfer */
927 /* The host polls for the DN_LD_CARD_RDY and CARD_IO_READY
929 ret
= mwifiex_sdio_poll_card_status(adapter
, CARD_IO_READY
|
932 mwifiex_dbg(adapter
, ERROR
,
933 "FW download with helper:\t"
934 "poll status timeout @ %d\n", offset
);
939 if (offset
>= firmware_len
)
942 for (tries
= 0; tries
< MAX_POLL_TRIES
; tries
++) {
943 ret
= mwifiex_read_reg(adapter
, reg
->base_0_reg
,
946 mwifiex_dbg(adapter
, ERROR
,
947 "dev BASE0 register read failed:\t"
948 "base0=%#04X(%d). Terminating dnld\n",
952 ret
= mwifiex_read_reg(adapter
, reg
->base_1_reg
,
955 mwifiex_dbg(adapter
, ERROR
,
956 "dev BASE1 register read failed:\t"
957 "base1=%#04X(%d). Terminating dnld\n",
961 len
= (u16
) (((base1
& 0xff) << 8) | (base0
& 0xff));
966 usleep_range(10, 20);
971 } else if (len
> MWIFIEX_UPLD_SIZE
) {
972 mwifiex_dbg(adapter
, ERROR
,
973 "FW dnld failed @ %d, invalid length %d\n",
983 if (i
> MAX_WRITE_IOMEM_RETRY
) {
984 mwifiex_dbg(adapter
, ERROR
,
985 "FW dnld failed @ %d, over max retry\n",
990 mwifiex_dbg(adapter
, ERROR
,
991 "CRC indicated by the helper:\t"
992 "len = 0x%04X, txlen = %d\n", len
, txlen
);
994 /* Setting this to 0 to resend from same offset */
999 /* Set blocksize to transfer - checking for last
1001 if (firmware_len
- offset
< txlen
)
1002 txlen
= firmware_len
- offset
;
1004 tx_blocks
= (txlen
+ MWIFIEX_SDIO_BLOCK_SIZE
- 1)
1005 / MWIFIEX_SDIO_BLOCK_SIZE
;
1007 /* Copy payload to buffer */
1008 memmove(fwbuf
, &firmware
[offset
], txlen
);
1011 ret
= mwifiex_write_data_sync(adapter
, fwbuf
, tx_blocks
*
1012 MWIFIEX_SDIO_BLOCK_SIZE
,
1015 mwifiex_dbg(adapter
, ERROR
,
1016 "FW download, write iomem (%d) failed @ %d\n",
1018 if (mwifiex_write_reg(adapter
, CONFIGURATION_REG
, 0x04))
1019 mwifiex_dbg(adapter
, ERROR
,
1020 "write CFG reg failed\n");
1029 sdio_release_host(card
->func
);
1031 mwifiex_dbg(adapter
, MSG
,
1032 "info: FW download over, size %d bytes\n", offset
);
1041 * This function checks the firmware status in card.
1043 static int mwifiex_check_fw_status(struct mwifiex_adapter
*adapter
,
1050 for (tries
= 0; tries
< poll_num
; tries
++) {
1051 ret
= mwifiex_sdio_read_fw_status(adapter
, &firmware_stat
);
1054 if (firmware_stat
== FIRMWARE_READY_SDIO
) {
1066 /* This function checks if WLAN is the winner.
1068 static int mwifiex_check_winner_status(struct mwifiex_adapter
*adapter
)
1072 struct sdio_mmc_card
*card
= adapter
->card
;
1074 if (mwifiex_read_reg(adapter
, card
->reg
->status_reg_0
, &winner
))
1078 adapter
->winner
= 0;
1080 adapter
->winner
= 1;
1086 * This function decode sdio aggreation pkt.
1088 * Based on the the data block size and pkt_len,
1089 * skb data will be decoded to few packets.
1091 static void mwifiex_deaggr_sdio_pkt(struct mwifiex_adapter
*adapter
,
1092 struct sk_buff
*skb
)
1094 u32 total_pkt_len
, pkt_len
;
1095 struct sk_buff
*skb_deaggr
;
1102 total_pkt_len
= skb
->len
;
1104 while (total_pkt_len
>= (SDIO_HEADER_OFFSET
+ INTF_HEADER_LEN
)) {
1105 if (total_pkt_len
< adapter
->sdio_rx_block_size
)
1107 blk_num
= *(data
+ BLOCK_NUMBER_OFFSET
);
1108 blk_size
= adapter
->sdio_rx_block_size
* blk_num
;
1109 if (blk_size
> total_pkt_len
) {
1110 mwifiex_dbg(adapter
, ERROR
,
1111 "%s: error in blk_size,\t"
1112 "blk_num=%d, blk_size=%d, total_pkt_len=%d\n",
1113 __func__
, blk_num
, blk_size
, total_pkt_len
);
1116 pkt_len
= le16_to_cpu(*(__le16
*)(data
+ SDIO_HEADER_OFFSET
));
1117 pkt_type
= le16_to_cpu(*(__le16
*)(data
+ SDIO_HEADER_OFFSET
+
1119 if ((pkt_len
+ SDIO_HEADER_OFFSET
) > blk_size
) {
1120 mwifiex_dbg(adapter
, ERROR
,
1121 "%s: error in pkt_len,\t"
1122 "pkt_len=%d, blk_size=%d\n",
1123 __func__
, pkt_len
, blk_size
);
1126 skb_deaggr
= mwifiex_alloc_dma_align_buf(pkt_len
,
1127 GFP_KERNEL
| GFP_DMA
);
1130 skb_put(skb_deaggr
, pkt_len
);
1131 memcpy(skb_deaggr
->data
, data
+ SDIO_HEADER_OFFSET
, pkt_len
);
1132 skb_pull(skb_deaggr
, INTF_HEADER_LEN
);
1134 mwifiex_handle_rx_packet(adapter
, skb_deaggr
);
1136 total_pkt_len
-= blk_size
;
1141 * This function decodes a received packet.
1143 * Based on the type, the packet is treated as either a data, or
1144 * a command response, or an event, and the correct handler
1145 * function is invoked.
1147 static int mwifiex_decode_rx_packet(struct mwifiex_adapter
*adapter
,
1148 struct sk_buff
*skb
, u32 upld_typ
)
1151 __le16
*curr_ptr
= (__le16
*)skb
->data
;
1152 u16 pkt_len
= le16_to_cpu(*curr_ptr
);
1153 struct mwifiex_rxinfo
*rx_info
;
1155 if (upld_typ
!= MWIFIEX_TYPE_AGGR_DATA
) {
1156 skb_trim(skb
, pkt_len
);
1157 skb_pull(skb
, INTF_HEADER_LEN
);
1161 case MWIFIEX_TYPE_AGGR_DATA
:
1162 mwifiex_dbg(adapter
, INFO
,
1163 "info: --- Rx: Aggr Data packet ---\n");
1164 rx_info
= MWIFIEX_SKB_RXCB(skb
);
1165 rx_info
->buf_type
= MWIFIEX_TYPE_AGGR_DATA
;
1166 if (adapter
->rx_work_enabled
) {
1167 skb_queue_tail(&adapter
->rx_data_q
, skb
);
1168 atomic_inc(&adapter
->rx_pending
);
1169 adapter
->data_received
= true;
1171 mwifiex_deaggr_sdio_pkt(adapter
, skb
);
1172 dev_kfree_skb_any(skb
);
1176 case MWIFIEX_TYPE_DATA
:
1177 mwifiex_dbg(adapter
, DATA
,
1178 "info: --- Rx: Data packet ---\n");
1179 if (adapter
->rx_work_enabled
) {
1180 skb_queue_tail(&adapter
->rx_data_q
, skb
);
1181 adapter
->data_received
= true;
1182 atomic_inc(&adapter
->rx_pending
);
1184 mwifiex_handle_rx_packet(adapter
, skb
);
1188 case MWIFIEX_TYPE_CMD
:
1189 mwifiex_dbg(adapter
, CMD
,
1190 "info: --- Rx: Cmd Response ---\n");
1191 /* take care of curr_cmd = NULL case */
1192 if (!adapter
->curr_cmd
) {
1193 cmd_buf
= adapter
->upld_buf
;
1195 if (adapter
->ps_state
== PS_STATE_SLEEP_CFM
)
1196 mwifiex_process_sleep_confirm_resp(adapter
,
1200 memcpy(cmd_buf
, skb
->data
,
1201 min_t(u32
, MWIFIEX_SIZE_OF_CMD_BUFFER
,
1204 dev_kfree_skb_any(skb
);
1206 adapter
->cmd_resp_received
= true;
1207 adapter
->curr_cmd
->resp_skb
= skb
;
1211 case MWIFIEX_TYPE_EVENT
:
1212 mwifiex_dbg(adapter
, EVENT
,
1213 "info: --- Rx: Event ---\n");
1214 adapter
->event_cause
= le32_to_cpu(*(__le32
*) skb
->data
);
1216 if ((skb
->len
> 0) && (skb
->len
< MAX_EVENT_SIZE
))
1217 memcpy(adapter
->event_body
,
1218 skb
->data
+ MWIFIEX_EVENT_HEADER_LEN
,
1221 /* event cause has been saved to adapter->event_cause */
1222 adapter
->event_received
= true;
1223 adapter
->event_skb
= skb
;
1228 mwifiex_dbg(adapter
, ERROR
,
1229 "unknown upload type %#x\n", upld_typ
);
1230 dev_kfree_skb_any(skb
);
1238 * This function transfers received packets from card to driver, performing
1239 * aggregation if required.
1241 * For data received on control port, or if aggregation is disabled, the
1242 * received buffers are uploaded as separate packets. However, if aggregation
1243 * is enabled and required, the buffers are copied onto an aggregation buffer,
1244 * provided there is space left, processed and finally uploaded.
1246 static int mwifiex_sdio_card_to_host_mp_aggr(struct mwifiex_adapter
*adapter
,
1247 u16 rx_len
, u8 port
)
1249 struct sdio_mmc_card
*card
= adapter
->card
;
1250 s32 f_do_rx_aggr
= 0;
1251 s32 f_do_rx_cur
= 0;
1253 s32 f_post_aggr_cur
= 0;
1254 struct sk_buff
*skb_deaggr
;
1255 struct sk_buff
*skb
= NULL
;
1256 u32 pkt_len
, pkt_type
, mport
, pind
;
1259 if ((card
->has_control_mask
) && (port
== CTRL_PORT
)) {
1260 /* Read the command Resp without aggr */
1261 mwifiex_dbg(adapter
, CMD
,
1262 "info: %s: no aggregation for cmd\t"
1263 "response\n", __func__
);
1266 goto rx_curr_single
;
1269 if (!card
->mpa_rx
.enabled
) {
1270 mwifiex_dbg(adapter
, WARN
,
1271 "info: %s: rx aggregation disabled\n",
1275 goto rx_curr_single
;
1278 if ((!card
->has_control_mask
&& (card
->mp_rd_bitmap
&
1279 card
->reg
->data_port_mask
)) ||
1280 (card
->has_control_mask
&& (card
->mp_rd_bitmap
&
1281 (~((u32
) CTRL_PORT_MASK
))))) {
1282 /* Some more data RX pending */
1283 mwifiex_dbg(adapter
, INFO
,
1284 "info: %s: not last packet\n", __func__
);
1286 if (MP_RX_AGGR_IN_PROGRESS(card
)) {
1287 if (MP_RX_AGGR_BUF_HAS_ROOM(card
, rx_len
)) {
1290 /* No room in Aggr buf, do rx aggr now */
1292 f_post_aggr_cur
= 1;
1295 /* Rx aggr not in progress */
1300 /* No more data RX pending */
1301 mwifiex_dbg(adapter
, INFO
,
1302 "info: %s: last packet\n", __func__
);
1304 if (MP_RX_AGGR_IN_PROGRESS(card
)) {
1306 if (MP_RX_AGGR_BUF_HAS_ROOM(card
, rx_len
))
1309 /* No room in Aggr buf, do rx aggr now */
1317 mwifiex_dbg(adapter
, INFO
,
1318 "info: current packet aggregation\n");
1319 /* Curr pkt can be aggregated */
1320 mp_rx_aggr_setup(card
, rx_len
, port
);
1322 if (MP_RX_AGGR_PKT_LIMIT_REACHED(card
) ||
1323 mp_rx_aggr_port_limit_reached(card
)) {
1324 mwifiex_dbg(adapter
, INFO
,
1325 "info: %s: aggregated packet\t"
1326 "limit reached\n", __func__
);
1327 /* No more pkts allowed in Aggr buf, rx it */
1333 /* do aggr RX now */
1334 mwifiex_dbg(adapter
, DATA
,
1335 "info: do_rx_aggr: num of packets: %d\n",
1336 card
->mpa_rx
.pkt_cnt
);
1338 if (card
->supports_sdio_new_mode
) {
1342 for (i
= 0, port_count
= 0; i
< card
->max_ports
; i
++)
1343 if (card
->mpa_rx
.ports
& BIT(i
))
1346 /* Reading data from "start_port + 0" to "start_port +
1347 * port_count -1", so decrease the count by 1
1350 mport
= (adapter
->ioport
| SDIO_MPA_ADDR_BASE
|
1351 (port_count
<< 8)) + card
->mpa_rx
.start_port
;
1353 mport
= (adapter
->ioport
| SDIO_MPA_ADDR_BASE
|
1354 (card
->mpa_rx
.ports
<< 4)) +
1355 card
->mpa_rx
.start_port
;
1358 if (card
->mpa_rx
.pkt_cnt
== 1)
1359 mport
= adapter
->ioport
+ port
;
1361 if (mwifiex_read_data_sync(adapter
, card
->mpa_rx
.buf
,
1362 card
->mpa_rx
.buf_len
, mport
, 1))
1365 curr_ptr
= card
->mpa_rx
.buf
;
1367 for (pind
= 0; pind
< card
->mpa_rx
.pkt_cnt
; pind
++) {
1368 u32
*len_arr
= card
->mpa_rx
.len_arr
;
1370 /* get curr PKT len & type */
1371 pkt_len
= le16_to_cpu(*(__le16
*) &curr_ptr
[0]);
1372 pkt_type
= le16_to_cpu(*(__le16
*) &curr_ptr
[2]);
1374 /* copy pkt to deaggr buf */
1375 skb_deaggr
= mwifiex_alloc_dma_align_buf(len_arr
[pind
],
1379 mwifiex_dbg(adapter
, ERROR
, "skb allocation failure\t"
1380 "drop pkt len=%d type=%d\n",
1382 curr_ptr
+= len_arr
[pind
];
1386 skb_put(skb_deaggr
, len_arr
[pind
]);
1388 if ((pkt_type
== MWIFIEX_TYPE_DATA
||
1389 (pkt_type
== MWIFIEX_TYPE_AGGR_DATA
&&
1390 adapter
->sdio_rx_aggr_enable
)) &&
1391 (pkt_len
<= len_arr
[pind
])) {
1393 memcpy(skb_deaggr
->data
, curr_ptr
, pkt_len
);
1395 skb_trim(skb_deaggr
, pkt_len
);
1397 /* Process de-aggr packet */
1398 mwifiex_decode_rx_packet(adapter
, skb_deaggr
,
1401 mwifiex_dbg(adapter
, ERROR
,
1402 "drop wrong aggr pkt:\t"
1403 "sdio_single_port_rx_aggr=%d\t"
1404 "type=%d len=%d max_len=%d\n",
1405 adapter
->sdio_rx_aggr_enable
,
1406 pkt_type
, pkt_len
, len_arr
[pind
]);
1407 dev_kfree_skb_any(skb_deaggr
);
1409 curr_ptr
+= len_arr
[pind
];
1411 MP_RX_AGGR_BUF_RESET(card
);
1416 mwifiex_dbg(adapter
, INFO
, "info: RX: port: %d, rx_len: %d\n",
1419 skb
= mwifiex_alloc_dma_align_buf(rx_len
, GFP_KERNEL
| GFP_DMA
);
1421 mwifiex_dbg(adapter
, ERROR
,
1422 "single skb allocated fail,\t"
1423 "drop pkt port=%d len=%d\n", port
, rx_len
);
1424 if (mwifiex_sdio_card_to_host(adapter
, &pkt_type
,
1425 card
->mpa_rx
.buf
, rx_len
,
1426 adapter
->ioport
+ port
))
1431 skb_put(skb
, rx_len
);
1433 if (mwifiex_sdio_card_to_host(adapter
, &pkt_type
,
1434 skb
->data
, skb
->len
,
1435 adapter
->ioport
+ port
))
1437 if (!adapter
->sdio_rx_aggr_enable
&&
1438 pkt_type
== MWIFIEX_TYPE_AGGR_DATA
) {
1439 mwifiex_dbg(adapter
, ERROR
, "drop wrong pkt type %d\t"
1440 "current SDIO RX Aggr not enabled\n",
1442 dev_kfree_skb_any(skb
);
1446 mwifiex_decode_rx_packet(adapter
, skb
, pkt_type
);
1448 if (f_post_aggr_cur
) {
1449 mwifiex_dbg(adapter
, INFO
,
1450 "info: current packet aggregation\n");
1451 /* Curr pkt can be aggregated */
1452 mp_rx_aggr_setup(card
, rx_len
, port
);
1457 if (MP_RX_AGGR_IN_PROGRESS(card
))
1458 MP_RX_AGGR_BUF_RESET(card
);
1460 if (f_do_rx_cur
&& skb
)
1461 /* Single transfer pending. Free curr buff also */
1462 dev_kfree_skb_any(skb
);
1468 * This function checks the current interrupt status.
1470 * The following interrupts are checked and handled by this function -
1473 * - Packets received
1475 * Since the firmware does not generate download ready interrupt if the
1476 * port updated is command port only, command sent interrupt checking
1477 * should be done manually, and for every SDIO interrupt.
1479 * In case of Rx packets received, the packets are uploaded from card to
1480 * host and processed accordingly.
1482 static int mwifiex_process_int_status(struct mwifiex_adapter
*adapter
)
1484 struct sdio_mmc_card
*card
= adapter
->card
;
1485 const struct mwifiex_sdio_card_reg
*reg
= card
->reg
;
1488 struct sk_buff
*skb
;
1489 u8 port
= CTRL_PORT
;
1490 u32 len_reg_l
, len_reg_u
;
1493 unsigned long flags
;
1497 spin_lock_irqsave(&adapter
->int_lock
, flags
);
1498 sdio_ireg
= adapter
->int_status
;
1499 adapter
->int_status
= 0;
1500 spin_unlock_irqrestore(&adapter
->int_lock
, flags
);
1505 /* Following interrupt is only for SDIO new mode */
1506 if (sdio_ireg
& DN_LD_CMD_PORT_HOST_INT_STATUS
&& adapter
->cmd_sent
)
1507 adapter
->cmd_sent
= false;
1509 /* Following interrupt is only for SDIO new mode */
1510 if (sdio_ireg
& UP_LD_CMD_PORT_HOST_INT_STATUS
) {
1513 /* read the len of control packet */
1514 rx_len
= card
->mp_regs
[reg
->cmd_rd_len_1
] << 8;
1515 rx_len
|= (u16
)card
->mp_regs
[reg
->cmd_rd_len_0
];
1516 rx_blocks
= DIV_ROUND_UP(rx_len
, MWIFIEX_SDIO_BLOCK_SIZE
);
1517 if (rx_len
<= INTF_HEADER_LEN
||
1518 (rx_blocks
* MWIFIEX_SDIO_BLOCK_SIZE
) >
1519 MWIFIEX_RX_DATA_BUF_SIZE
)
1521 rx_len
= (u16
) (rx_blocks
* MWIFIEX_SDIO_BLOCK_SIZE
);
1522 mwifiex_dbg(adapter
, INFO
, "info: rx_len = %d\n", rx_len
);
1524 skb
= mwifiex_alloc_dma_align_buf(rx_len
, GFP_KERNEL
| GFP_DMA
);
1528 skb_put(skb
, rx_len
);
1530 if (mwifiex_sdio_card_to_host(adapter
, &pkt_type
, skb
->data
,
1531 skb
->len
, adapter
->ioport
|
1533 mwifiex_dbg(adapter
, ERROR
,
1534 "%s: failed to card_to_host", __func__
);
1535 dev_kfree_skb_any(skb
);
1539 if ((pkt_type
!= MWIFIEX_TYPE_CMD
) &&
1540 (pkt_type
!= MWIFIEX_TYPE_EVENT
))
1541 mwifiex_dbg(adapter
, ERROR
,
1542 "%s:Received wrong packet on cmd port",
1545 mwifiex_decode_rx_packet(adapter
, skb
, pkt_type
);
1548 if (sdio_ireg
& DN_LD_HOST_INT_STATUS
) {
1549 bitmap
= (u32
) card
->mp_regs
[reg
->wr_bitmap_l
];
1550 bitmap
|= ((u32
) card
->mp_regs
[reg
->wr_bitmap_u
]) << 8;
1551 if (card
->supports_sdio_new_mode
) {
1553 ((u32
) card
->mp_regs
[reg
->wr_bitmap_1l
]) << 16;
1555 ((u32
) card
->mp_regs
[reg
->wr_bitmap_1u
]) << 24;
1557 card
->mp_wr_bitmap
= bitmap
;
1559 mwifiex_dbg(adapter
, INTR
,
1560 "int: DNLD: wr_bitmap=0x%x\n",
1561 card
->mp_wr_bitmap
);
1562 if (adapter
->data_sent
&&
1563 (card
->mp_wr_bitmap
& card
->mp_data_port_mask
)) {
1564 mwifiex_dbg(adapter
, INTR
,
1565 "info: <--- Tx DONE Interrupt --->\n");
1566 adapter
->data_sent
= false;
1570 /* As firmware will not generate download ready interrupt if the port
1571 updated is command port only, cmd_sent should be done for any SDIO
1573 if (card
->has_control_mask
&& adapter
->cmd_sent
) {
1574 /* Check if firmware has attach buffer at command port and
1575 update just that in wr_bit_map. */
1576 card
->mp_wr_bitmap
|=
1577 (u32
) card
->mp_regs
[reg
->wr_bitmap_l
] & CTRL_PORT_MASK
;
1578 if (card
->mp_wr_bitmap
& CTRL_PORT_MASK
)
1579 adapter
->cmd_sent
= false;
1582 mwifiex_dbg(adapter
, INTR
, "info: cmd_sent=%d data_sent=%d\n",
1583 adapter
->cmd_sent
, adapter
->data_sent
);
1584 if (sdio_ireg
& UP_LD_HOST_INT_STATUS
) {
1585 bitmap
= (u32
) card
->mp_regs
[reg
->rd_bitmap_l
];
1586 bitmap
|= ((u32
) card
->mp_regs
[reg
->rd_bitmap_u
]) << 8;
1587 if (card
->supports_sdio_new_mode
) {
1589 ((u32
) card
->mp_regs
[reg
->rd_bitmap_1l
]) << 16;
1591 ((u32
) card
->mp_regs
[reg
->rd_bitmap_1u
]) << 24;
1593 card
->mp_rd_bitmap
= bitmap
;
1594 mwifiex_dbg(adapter
, INTR
,
1595 "int: UPLD: rd_bitmap=0x%x\n",
1596 card
->mp_rd_bitmap
);
1599 ret
= mwifiex_get_rd_port(adapter
, &port
);
1601 mwifiex_dbg(adapter
, INFO
,
1602 "info: no more rd_port available\n");
1605 len_reg_l
= reg
->rd_len_p0_l
+ (port
<< 1);
1606 len_reg_u
= reg
->rd_len_p0_u
+ (port
<< 1);
1607 rx_len
= ((u16
) card
->mp_regs
[len_reg_u
]) << 8;
1608 rx_len
|= (u16
) card
->mp_regs
[len_reg_l
];
1609 mwifiex_dbg(adapter
, INFO
,
1610 "info: RX: port=%d rx_len=%u\n",
1613 (rx_len
+ MWIFIEX_SDIO_BLOCK_SIZE
-
1614 1) / MWIFIEX_SDIO_BLOCK_SIZE
;
1615 if (rx_len
<= INTF_HEADER_LEN
||
1616 (card
->mpa_rx
.enabled
&&
1617 ((rx_blocks
* MWIFIEX_SDIO_BLOCK_SIZE
) >
1618 card
->mpa_rx
.buf_size
))) {
1619 mwifiex_dbg(adapter
, ERROR
,
1620 "invalid rx_len=%d\n",
1625 rx_len
= (u16
) (rx_blocks
* MWIFIEX_SDIO_BLOCK_SIZE
);
1626 mwifiex_dbg(adapter
, INFO
, "info: rx_len = %d\n",
1629 if (mwifiex_sdio_card_to_host_mp_aggr(adapter
, rx_len
,
1631 mwifiex_dbg(adapter
, ERROR
,
1632 "card_to_host_mpa failed: int status=%#x\n",
1643 if (mwifiex_read_reg(adapter
, CONFIGURATION_REG
, &cr
))
1644 mwifiex_dbg(adapter
, ERROR
, "read CFG reg failed\n");
1646 mwifiex_dbg(adapter
, INFO
,
1647 "info: CFG reg val = %d\n", cr
);
1649 if (mwifiex_write_reg(adapter
, CONFIGURATION_REG
, (cr
| 0x04)))
1650 mwifiex_dbg(adapter
, ERROR
,
1651 "write CFG reg failed\n");
1653 mwifiex_dbg(adapter
, INFO
, "info: write success\n");
1655 if (mwifiex_read_reg(adapter
, CONFIGURATION_REG
, &cr
))
1656 mwifiex_dbg(adapter
, ERROR
,
1657 "read CFG reg failed\n");
1659 mwifiex_dbg(adapter
, INFO
,
1660 "info: CFG reg val =%x\n", cr
);
1666 * This function aggregates transmission buffers in driver and downloads
1667 * the aggregated packet to card.
1669 * The individual packets are aggregated by copying into an aggregation
1670 * buffer and then downloaded to the card. Previous unsent packets in the
1671 * aggregation buffer are pre-copied first before new packets are added.
1672 * Aggregation is done till there is space left in the aggregation buffer,
1673 * or till new packets are available.
1675 * The function will only download the packet to the card when aggregation
1676 * stops, otherwise it will just aggregate the packet in aggregation buffer
1679 static int mwifiex_host_to_card_mp_aggr(struct mwifiex_adapter
*adapter
,
1680 u8
*payload
, u32 pkt_len
, u32 port
,
1683 struct sdio_mmc_card
*card
= adapter
->card
;
1685 s32 f_send_aggr_buf
= 0;
1686 s32 f_send_cur_buf
= 0;
1687 s32 f_precopy_cur_buf
= 0;
1688 s32 f_postcopy_cur_buf
= 0;
1692 if (!card
->mpa_tx
.enabled
||
1693 (card
->has_control_mask
&& (port
== CTRL_PORT
)) ||
1694 (card
->supports_sdio_new_mode
&& (port
== CMD_PORT_SLCT
))) {
1695 mwifiex_dbg(adapter
, WARN
,
1696 "info: %s: tx aggregation disabled\n",
1700 goto tx_curr_single
;
1704 /* More pkt in TX queue */
1705 mwifiex_dbg(adapter
, INFO
,
1706 "info: %s: more packets in queue.\n",
1709 if (MP_TX_AGGR_IN_PROGRESS(card
)) {
1710 if (MP_TX_AGGR_BUF_HAS_ROOM(card
, pkt_len
)) {
1711 f_precopy_cur_buf
= 1;
1713 if (!(card
->mp_wr_bitmap
&
1714 (1 << card
->curr_wr_port
)) ||
1715 !MP_TX_AGGR_BUF_HAS_ROOM(
1716 card
, pkt_len
+ next_pkt_len
))
1717 f_send_aggr_buf
= 1;
1719 /* No room in Aggr buf, send it */
1720 f_send_aggr_buf
= 1;
1722 if (!(card
->mp_wr_bitmap
&
1723 (1 << card
->curr_wr_port
)))
1726 f_postcopy_cur_buf
= 1;
1729 if (MP_TX_AGGR_BUF_HAS_ROOM(card
, pkt_len
) &&
1730 (card
->mp_wr_bitmap
& (1 << card
->curr_wr_port
)))
1731 f_precopy_cur_buf
= 1;
1736 /* Last pkt in TX queue */
1737 mwifiex_dbg(adapter
, INFO
,
1738 "info: %s: Last packet in Tx Queue.\n",
1741 if (MP_TX_AGGR_IN_PROGRESS(card
)) {
1742 /* some packs in Aggr buf already */
1743 f_send_aggr_buf
= 1;
1745 if (MP_TX_AGGR_BUF_HAS_ROOM(card
, pkt_len
))
1746 f_precopy_cur_buf
= 1;
1748 /* No room in Aggr buf, send it */
1755 if (f_precopy_cur_buf
) {
1756 mwifiex_dbg(adapter
, DATA
,
1757 "data: %s: precopy current buffer\n",
1759 MP_TX_AGGR_BUF_PUT(card
, payload
, pkt_len
, port
);
1761 if (MP_TX_AGGR_PKT_LIMIT_REACHED(card
) ||
1762 mp_tx_aggr_port_limit_reached(card
))
1763 /* No more pkts allowed in Aggr buf, send it */
1764 f_send_aggr_buf
= 1;
1767 if (f_send_aggr_buf
) {
1768 mwifiex_dbg(adapter
, DATA
,
1769 "data: %s: send aggr buffer: %d %d\n",
1770 __func__
, card
->mpa_tx
.start_port
,
1771 card
->mpa_tx
.ports
);
1772 if (card
->supports_sdio_new_mode
) {
1776 for (i
= 0, port_count
= 0; i
< card
->max_ports
; i
++)
1777 if (card
->mpa_tx
.ports
& BIT(i
))
1780 /* Writing data from "start_port + 0" to "start_port +
1781 * port_count -1", so decrease the count by 1
1784 mport
= (adapter
->ioport
| SDIO_MPA_ADDR_BASE
|
1785 (port_count
<< 8)) + card
->mpa_tx
.start_port
;
1787 mport
= (adapter
->ioport
| SDIO_MPA_ADDR_BASE
|
1788 (card
->mpa_tx
.ports
<< 4)) +
1789 card
->mpa_tx
.start_port
;
1792 if (card
->mpa_tx
.pkt_cnt
== 1)
1793 mport
= adapter
->ioport
+ port
;
1795 ret
= mwifiex_write_data_to_card(adapter
, card
->mpa_tx
.buf
,
1796 card
->mpa_tx
.buf_len
, mport
);
1798 /* Save the last multi port tx aggreagation info to debug log */
1799 index
= adapter
->dbg
.last_sdio_mp_index
;
1800 index
= (index
+ 1) % MWIFIEX_DBG_SDIO_MP_NUM
;
1801 adapter
->dbg
.last_sdio_mp_index
= index
;
1802 adapter
->dbg
.last_mp_wr_ports
[index
] = mport
;
1803 adapter
->dbg
.last_mp_wr_bitmap
[index
] = card
->mp_wr_bitmap
;
1804 adapter
->dbg
.last_mp_wr_len
[index
] = card
->mpa_tx
.buf_len
;
1805 adapter
->dbg
.last_mp_curr_wr_port
[index
] = card
->curr_wr_port
;
1807 MP_TX_AGGR_BUF_RESET(card
);
1811 if (f_send_cur_buf
) {
1812 mwifiex_dbg(adapter
, DATA
,
1813 "data: %s: send current buffer %d\n",
1815 ret
= mwifiex_write_data_to_card(adapter
, payload
, pkt_len
,
1816 adapter
->ioport
+ port
);
1819 if (f_postcopy_cur_buf
) {
1820 mwifiex_dbg(adapter
, DATA
,
1821 "data: %s: postcopy current buffer\n",
1823 MP_TX_AGGR_BUF_PUT(card
, payload
, pkt_len
, port
);
1830 * This function downloads data from driver to card.
1832 * Both commands and data packets are transferred to the card by this
1835 * This function adds the SDIO specific header to the front of the buffer
1836 * before transferring. The header contains the length of the packet and
1837 * the type. The firmware handles the packets based upon this set type.
1839 static int mwifiex_sdio_host_to_card(struct mwifiex_adapter
*adapter
,
1840 u8 type
, struct sk_buff
*skb
,
1841 struct mwifiex_tx_param
*tx_param
)
1843 struct sdio_mmc_card
*card
= adapter
->card
;
1847 u32 port
= CTRL_PORT
;
1848 u8
*payload
= (u8
*)skb
->data
;
1849 u32 pkt_len
= skb
->len
;
1851 /* Allocate buffer and copy payload */
1852 blk_size
= MWIFIEX_SDIO_BLOCK_SIZE
;
1853 buf_block_len
= (pkt_len
+ blk_size
- 1) / blk_size
;
1854 *(__le16
*)&payload
[0] = cpu_to_le16((u16
)pkt_len
);
1855 *(__le16
*)&payload
[2] = cpu_to_le16(type
);
1858 * This is SDIO specific header
1860 * u16 type (MWIFIEX_TYPE_DATA = 0, MWIFIEX_TYPE_CMD = 1,
1861 * MWIFIEX_TYPE_EVENT = 3)
1863 if (type
== MWIFIEX_TYPE_DATA
) {
1864 ret
= mwifiex_get_wr_port_data(adapter
, &port
);
1866 mwifiex_dbg(adapter
, ERROR
,
1867 "%s: no wr_port available\n",
1872 adapter
->cmd_sent
= true;
1873 /* Type must be MWIFIEX_TYPE_CMD */
1875 if (pkt_len
<= INTF_HEADER_LEN
||
1876 pkt_len
> MWIFIEX_UPLD_SIZE
)
1877 mwifiex_dbg(adapter
, ERROR
,
1878 "%s: payload=%p, nb=%d\n",
1879 __func__
, payload
, pkt_len
);
1881 if (card
->supports_sdio_new_mode
)
1882 port
= CMD_PORT_SLCT
;
1885 /* Transfer data to card */
1886 pkt_len
= buf_block_len
* blk_size
;
1889 ret
= mwifiex_host_to_card_mp_aggr(adapter
, payload
, pkt_len
,
1890 port
, tx_param
->next_pkt_len
1893 ret
= mwifiex_host_to_card_mp_aggr(adapter
, payload
, pkt_len
,
1897 if (type
== MWIFIEX_TYPE_CMD
)
1898 adapter
->cmd_sent
= false;
1899 if (type
== MWIFIEX_TYPE_DATA
) {
1900 adapter
->data_sent
= false;
1901 /* restore curr_wr_port in error cases */
1902 card
->curr_wr_port
= port
;
1903 card
->mp_wr_bitmap
|= (u32
)(1 << card
->curr_wr_port
);
1906 if (type
== MWIFIEX_TYPE_DATA
) {
1907 if (!(card
->mp_wr_bitmap
& (1 << card
->curr_wr_port
)))
1908 adapter
->data_sent
= true;
1910 adapter
->data_sent
= false;
1918 * This function allocates the MPA Tx and Rx buffers.
1920 static int mwifiex_alloc_sdio_mpa_buffers(struct mwifiex_adapter
*adapter
,
1921 u32 mpa_tx_buf_size
, u32 mpa_rx_buf_size
)
1923 struct sdio_mmc_card
*card
= adapter
->card
;
1927 card
->mpa_tx
.buf
= kzalloc(mpa_tx_buf_size
, GFP_KERNEL
);
1928 if (!card
->mpa_tx
.buf
) {
1933 card
->mpa_tx
.buf_size
= mpa_tx_buf_size
;
1935 rx_buf_size
= max_t(u32
, mpa_rx_buf_size
,
1936 (u32
)SDIO_MAX_AGGR_BUF_SIZE
);
1937 card
->mpa_rx
.buf
= kzalloc(rx_buf_size
, GFP_KERNEL
);
1938 if (!card
->mpa_rx
.buf
) {
1943 card
->mpa_rx
.buf_size
= rx_buf_size
;
1947 kfree(card
->mpa_tx
.buf
);
1948 kfree(card
->mpa_rx
.buf
);
1949 card
->mpa_tx
.buf_size
= 0;
1950 card
->mpa_rx
.buf_size
= 0;
1957 * This function unregisters the SDIO device.
1959 * The SDIO IRQ is released, the function is disabled and driver
1960 * data is set to null.
1963 mwifiex_unregister_dev(struct mwifiex_adapter
*adapter
)
1965 struct sdio_mmc_card
*card
= adapter
->card
;
1967 if (adapter
->card
) {
1968 sdio_claim_host(card
->func
);
1969 sdio_disable_func(card
->func
);
1970 sdio_release_host(card
->func
);
1975 * This function registers the SDIO device.
1977 * SDIO IRQ is claimed, block size is set and driver data is initialized.
1979 static int mwifiex_register_dev(struct mwifiex_adapter
*adapter
)
1982 struct sdio_mmc_card
*card
= adapter
->card
;
1983 struct sdio_func
*func
= card
->func
;
1985 /* save adapter pointer in card */
1986 card
->adapter
= adapter
;
1987 adapter
->tx_buf_size
= card
->tx_buf_size
;
1989 sdio_claim_host(func
);
1991 /* Set block size */
1992 ret
= sdio_set_block_size(card
->func
, MWIFIEX_SDIO_BLOCK_SIZE
);
1993 sdio_release_host(func
);
1995 mwifiex_dbg(adapter
, ERROR
,
1996 "cannot set SDIO block size\n");
2001 adapter
->dev
= &func
->dev
;
2003 strcpy(adapter
->fw_name
, card
->firmware
);
2004 if (card
->fw_dump_enh
) {
2005 adapter
->mem_type_mapping_tbl
= generic_mem_type_map
;
2006 adapter
->num_mem_types
= 1;
2008 adapter
->mem_type_mapping_tbl
= mem_type_mapping_tbl
;
2009 adapter
->num_mem_types
= ARRAY_SIZE(mem_type_mapping_tbl
);
2016 * This function initializes the SDIO driver.
2018 * The following initializations steps are followed -
2019 * - Read the Host interrupt status register to acknowledge
2020 * the first interrupt got from bootloader
2021 * - Disable host interrupt mask register
2023 * - Initialize SDIO variables in card
2024 * - Allocate MP registers
2025 * - Allocate MPA Tx and Rx buffers
2027 static int mwifiex_init_sdio(struct mwifiex_adapter
*adapter
)
2029 struct sdio_mmc_card
*card
= adapter
->card
;
2030 const struct mwifiex_sdio_card_reg
*reg
= card
->reg
;
2034 sdio_set_drvdata(card
->func
, card
);
2037 * Read the host_int_status_reg for ACK the first interrupt got
2038 * from the bootloader. If we don't do this we get a interrupt
2039 * as soon as we register the irq.
2041 mwifiex_read_reg(adapter
, card
->reg
->host_int_status_reg
, &sdio_ireg
);
2043 /* Get SDIO ioport */
2044 mwifiex_init_sdio_ioport(adapter
);
2046 /* Initialize SDIO variables in card */
2047 card
->mp_rd_bitmap
= 0;
2048 card
->mp_wr_bitmap
= 0;
2049 card
->curr_rd_port
= reg
->start_rd_port
;
2050 card
->curr_wr_port
= reg
->start_wr_port
;
2052 card
->mp_data_port_mask
= reg
->data_port_mask
;
2054 card
->mpa_tx
.buf_len
= 0;
2055 card
->mpa_tx
.pkt_cnt
= 0;
2056 card
->mpa_tx
.start_port
= 0;
2058 card
->mpa_tx
.enabled
= 1;
2059 card
->mpa_tx
.pkt_aggr_limit
= card
->mp_agg_pkt_limit
;
2061 card
->mpa_rx
.buf_len
= 0;
2062 card
->mpa_rx
.pkt_cnt
= 0;
2063 card
->mpa_rx
.start_port
= 0;
2065 card
->mpa_rx
.enabled
= 1;
2066 card
->mpa_rx
.pkt_aggr_limit
= card
->mp_agg_pkt_limit
;
2068 /* Allocate buffers for SDIO MP-A */
2069 card
->mp_regs
= kzalloc(reg
->max_mp_regs
, GFP_KERNEL
);
2073 /* Allocate skb pointer buffers */
2074 card
->mpa_rx
.skb_arr
= kzalloc((sizeof(void *)) *
2075 card
->mp_agg_pkt_limit
, GFP_KERNEL
);
2076 if (!card
->mpa_rx
.skb_arr
) {
2077 kfree(card
->mp_regs
);
2081 card
->mpa_rx
.len_arr
= kzalloc(sizeof(*card
->mpa_rx
.len_arr
) *
2082 card
->mp_agg_pkt_limit
, GFP_KERNEL
);
2083 if (!card
->mpa_rx
.len_arr
) {
2084 kfree(card
->mp_regs
);
2085 kfree(card
->mpa_rx
.skb_arr
);
2089 ret
= mwifiex_alloc_sdio_mpa_buffers(adapter
,
2090 card
->mp_tx_agg_buf_size
,
2091 card
->mp_rx_agg_buf_size
);
2093 /* Allocate 32k MPA Tx/Rx buffers if 64k memory allocation fails */
2094 if (ret
&& (card
->mp_tx_agg_buf_size
== MWIFIEX_MP_AGGR_BUF_SIZE_MAX
||
2095 card
->mp_rx_agg_buf_size
== MWIFIEX_MP_AGGR_BUF_SIZE_MAX
)) {
2096 /* Disable rx single port aggregation */
2097 adapter
->host_disable_sdio_rx_aggr
= true;
2099 ret
= mwifiex_alloc_sdio_mpa_buffers
2100 (adapter
, MWIFIEX_MP_AGGR_BUF_SIZE_32K
,
2101 MWIFIEX_MP_AGGR_BUF_SIZE_32K
);
2103 /* Disable multi port aggregation */
2104 card
->mpa_tx
.enabled
= 0;
2105 card
->mpa_rx
.enabled
= 0;
2109 adapter
->auto_tdls
= card
->can_auto_tdls
;
2110 adapter
->ext_scan
= card
->can_ext_scan
;
2115 * This function resets the MPA Tx and Rx buffers.
2117 static void mwifiex_cleanup_mpa_buf(struct mwifiex_adapter
*adapter
)
2119 struct sdio_mmc_card
*card
= adapter
->card
;
2121 MP_TX_AGGR_BUF_RESET(card
);
2122 MP_RX_AGGR_BUF_RESET(card
);
2126 * This function cleans up the allocated card buffers.
2128 * The following are freed by this function -
2133 static void mwifiex_cleanup_sdio(struct mwifiex_adapter
*adapter
)
2135 struct sdio_mmc_card
*card
= adapter
->card
;
2137 kfree(card
->mp_regs
);
2138 kfree(card
->mpa_rx
.skb_arr
);
2139 kfree(card
->mpa_rx
.len_arr
);
2140 kfree(card
->mpa_tx
.buf
);
2141 kfree(card
->mpa_rx
.buf
);
2142 sdio_set_drvdata(card
->func
, NULL
);
2147 * This function updates the MP end port in card.
2150 mwifiex_update_mp_end_port(struct mwifiex_adapter
*adapter
, u16 port
)
2152 struct sdio_mmc_card
*card
= adapter
->card
;
2153 const struct mwifiex_sdio_card_reg
*reg
= card
->reg
;
2156 card
->mp_end_port
= port
;
2158 card
->mp_data_port_mask
= reg
->data_port_mask
;
2160 if (reg
->start_wr_port
) {
2161 for (i
= 1; i
<= card
->max_ports
- card
->mp_end_port
; i
++)
2162 card
->mp_data_port_mask
&=
2163 ~(1 << (card
->max_ports
- i
));
2166 card
->curr_wr_port
= reg
->start_wr_port
;
2168 mwifiex_dbg(adapter
, CMD
,
2169 "cmd: mp_end_port %d, data port mask 0x%x\n",
2170 port
, card
->mp_data_port_mask
);
2173 static void mwifiex_recreate_adapter(struct sdio_mmc_card
*card
)
2175 struct sdio_func
*func
= card
->func
;
2176 const struct sdio_device_id
*device_id
= card
->device_id
;
2178 /* TODO mmc_hw_reset does not require destroying and re-probing the
2179 * whole adapter. Hence there was no need to for this rube-goldberg
2180 * design to reload the fw from an external workqueue. If we don't
2181 * destroy the adapter we could reload the fw from
2182 * mwifiex_main_work_queue directly.
2183 * The real difficulty with fw reset is to restore all the user
2184 * settings applied through ioctl. By destroying and recreating the
2185 * adapter, we take the easy way out, since we rely on user space to
2186 * restore them. We assume that user space will treat the new
2187 * incarnation of the adapter(interfaces) as if they had been just
2188 * discovered and initializes them from scratch.
2191 mwifiex_sdio_remove(func
);
2193 /* power cycle the adapter */
2194 sdio_claim_host(func
);
2195 mmc_hw_reset(func
->card
->host
);
2196 sdio_release_host(func
);
2198 mwifiex_sdio_probe(func
, device_id
);
2201 static struct mwifiex_adapter
*save_adapter
;
2202 static void mwifiex_sdio_card_reset_work(struct mwifiex_adapter
*adapter
)
2204 struct sdio_mmc_card
*card
= adapter
->card
;
2206 /* TODO card pointer is unprotected. If the adapter is removed
2207 * physically, sdio core might trigger mwifiex_sdio_remove, before this
2208 * workqueue is run, which will destroy the adapter struct. When this
2209 * workqueue eventually exceutes it will dereference an invalid adapter
2212 mwifiex_recreate_adapter(card
);
2215 /* This function read/write firmware */
2217 rdwr_status
mwifiex_sdio_rdwr_firmware(struct mwifiex_adapter
*adapter
,
2220 struct sdio_mmc_card
*card
= adapter
->card
;
2224 sdio_writeb(card
->func
, card
->reg
->fw_dump_host_ready
,
2225 card
->reg
->fw_dump_ctrl
, &ret
);
2227 mwifiex_dbg(adapter
, ERROR
, "SDIO Write ERR\n");
2228 return RDWR_STATUS_FAILURE
;
2230 for (tries
= 0; tries
< MAX_POLL_TRIES
; tries
++) {
2231 ctrl_data
= sdio_readb(card
->func
, card
->reg
->fw_dump_ctrl
,
2234 mwifiex_dbg(adapter
, ERROR
, "SDIO read err\n");
2235 return RDWR_STATUS_FAILURE
;
2237 if (ctrl_data
== FW_DUMP_DONE
)
2239 if (doneflag
&& ctrl_data
== doneflag
)
2240 return RDWR_STATUS_DONE
;
2241 if (ctrl_data
!= card
->reg
->fw_dump_host_ready
) {
2242 mwifiex_dbg(adapter
, WARN
,
2243 "The ctrl reg was changed, re-try again\n");
2244 sdio_writeb(card
->func
, card
->reg
->fw_dump_host_ready
,
2245 card
->reg
->fw_dump_ctrl
, &ret
);
2247 mwifiex_dbg(adapter
, ERROR
, "SDIO write err\n");
2248 return RDWR_STATUS_FAILURE
;
2251 usleep_range(100, 200);
2253 if (ctrl_data
== card
->reg
->fw_dump_host_ready
) {
2254 mwifiex_dbg(adapter
, ERROR
,
2255 "Fail to pull ctrl_data\n");
2256 return RDWR_STATUS_FAILURE
;
2259 return RDWR_STATUS_SUCCESS
;
2262 /* This function dump firmware memory to file */
2263 static void mwifiex_sdio_fw_dump(struct mwifiex_adapter
*adapter
)
2265 struct sdio_mmc_card
*card
= adapter
->card
;
2267 unsigned int reg
, reg_start
, reg_end
;
2268 u8
*dbg_ptr
, *end_ptr
, dump_num
, idx
, i
, read_reg
, doneflag
= 0;
2269 enum rdwr_status stat
;
2272 if (!card
->can_dump_fw
)
2275 for (idx
= 0; idx
< ARRAY_SIZE(mem_type_mapping_tbl
); idx
++) {
2276 struct memory_type_mapping
*entry
= &mem_type_mapping_tbl
[idx
];
2278 if (entry
->mem_ptr
) {
2279 vfree(entry
->mem_ptr
);
2280 entry
->mem_ptr
= NULL
;
2282 entry
->mem_size
= 0;
2285 mwifiex_pm_wakeup_card(adapter
);
2286 sdio_claim_host(card
->func
);
2288 mwifiex_dbg(adapter
, MSG
, "== mwifiex firmware dump start ==\n");
2290 stat
= mwifiex_sdio_rdwr_firmware(adapter
, doneflag
);
2291 if (stat
== RDWR_STATUS_FAILURE
)
2294 reg
= card
->reg
->fw_dump_start
;
2295 /* Read the number of the memories which will dump */
2296 dump_num
= sdio_readb(card
->func
, reg
, &ret
);
2298 mwifiex_dbg(adapter
, ERROR
, "SDIO read memory length err\n");
2302 /* Read the length of every memory which will dump */
2303 for (idx
= 0; idx
< dump_num
; idx
++) {
2304 struct memory_type_mapping
*entry
= &mem_type_mapping_tbl
[idx
];
2306 stat
= mwifiex_sdio_rdwr_firmware(adapter
, doneflag
);
2307 if (stat
== RDWR_STATUS_FAILURE
)
2311 reg
= card
->reg
->fw_dump_start
;
2312 for (i
= 0; i
< 4; i
++) {
2313 read_reg
= sdio_readb(card
->func
, reg
, &ret
);
2315 mwifiex_dbg(adapter
, ERROR
, "SDIO read err\n");
2318 memory_size
|= (read_reg
<< i
*8);
2322 if (memory_size
== 0) {
2323 mwifiex_dbg(adapter
, DUMP
, "Firmware dump Finished!\n");
2324 ret
= mwifiex_write_reg(adapter
,
2325 card
->reg
->fw_dump_ctrl
,
2328 mwifiex_dbg(adapter
, ERROR
, "SDIO write err\n");
2334 mwifiex_dbg(adapter
, DUMP
,
2335 "%s_SIZE=0x%x\n", entry
->mem_name
, memory_size
);
2336 entry
->mem_ptr
= vmalloc(memory_size
+ 1);
2337 entry
->mem_size
= memory_size
;
2338 if (!entry
->mem_ptr
) {
2339 mwifiex_dbg(adapter
, ERROR
, "Vmalloc %s failed\n",
2343 dbg_ptr
= entry
->mem_ptr
;
2344 end_ptr
= dbg_ptr
+ memory_size
;
2346 doneflag
= entry
->done_flag
;
2347 mwifiex_dbg(adapter
, DUMP
,
2348 "Start %s output, please wait...\n",
2352 stat
= mwifiex_sdio_rdwr_firmware(adapter
, doneflag
);
2353 if (stat
== RDWR_STATUS_FAILURE
)
2356 reg_start
= card
->reg
->fw_dump_start
;
2357 reg_end
= card
->reg
->fw_dump_end
;
2358 for (reg
= reg_start
; reg
<= reg_end
; reg
++) {
2359 *dbg_ptr
= sdio_readb(card
->func
, reg
, &ret
);
2361 mwifiex_dbg(adapter
, ERROR
,
2365 if (dbg_ptr
< end_ptr
)
2368 mwifiex_dbg(adapter
, ERROR
,
2369 "Allocated buf not enough\n");
2372 if (stat
!= RDWR_STATUS_DONE
)
2375 mwifiex_dbg(adapter
, DUMP
, "%s done: size=0x%tx\n",
2376 entry
->mem_name
, dbg_ptr
- entry
->mem_ptr
);
2380 mwifiex_dbg(adapter
, MSG
, "== mwifiex firmware dump end ==\n");
2383 sdio_release_host(card
->func
);
2386 static void mwifiex_sdio_generic_fw_dump(struct mwifiex_adapter
*adapter
)
2388 struct sdio_mmc_card
*card
= adapter
->card
;
2389 struct memory_type_mapping
*entry
= &generic_mem_type_map
[0];
2390 unsigned int reg
, reg_start
, reg_end
;
2391 u8 start_flag
= 0, done_flag
= 0;
2392 u8
*dbg_ptr
, *end_ptr
;
2393 enum rdwr_status stat
;
2394 int ret
= -1, tries
;
2396 if (!card
->fw_dump_enh
)
2399 if (entry
->mem_ptr
) {
2400 vfree(entry
->mem_ptr
);
2401 entry
->mem_ptr
= NULL
;
2403 entry
->mem_size
= 0;
2405 mwifiex_pm_wakeup_card(adapter
);
2406 sdio_claim_host(card
->func
);
2408 mwifiex_dbg(adapter
, MSG
, "== mwifiex firmware dump start ==\n");
2410 stat
= mwifiex_sdio_rdwr_firmware(adapter
, done_flag
);
2411 if (stat
== RDWR_STATUS_FAILURE
)
2414 reg_start
= card
->reg
->fw_dump_start
;
2415 reg_end
= card
->reg
->fw_dump_end
;
2416 for (reg
= reg_start
; reg
<= reg_end
; reg
++) {
2417 for (tries
= 0; tries
< MAX_POLL_TRIES
; tries
++) {
2418 start_flag
= sdio_readb(card
->func
, reg
, &ret
);
2420 mwifiex_dbg(adapter
, ERROR
,
2424 if (start_flag
== 0)
2426 if (tries
== MAX_POLL_TRIES
) {
2427 mwifiex_dbg(adapter
, ERROR
,
2428 "FW not ready to dump\n");
2433 usleep_range(100, 200);
2436 entry
->mem_ptr
= vmalloc(0xf0000 + 1);
2437 if (!entry
->mem_ptr
) {
2441 dbg_ptr
= entry
->mem_ptr
;
2442 entry
->mem_size
= 0xf0000;
2443 end_ptr
= dbg_ptr
+ entry
->mem_size
;
2445 done_flag
= entry
->done_flag
;
2446 mwifiex_dbg(adapter
, DUMP
,
2447 "Start %s output, please wait...\n", entry
->mem_name
);
2450 stat
= mwifiex_sdio_rdwr_firmware(adapter
, done_flag
);
2451 if (stat
== RDWR_STATUS_FAILURE
)
2453 for (reg
= reg_start
; reg
<= reg_end
; reg
++) {
2454 *dbg_ptr
= sdio_readb(card
->func
, reg
, &ret
);
2456 mwifiex_dbg(adapter
, ERROR
,
2461 if (dbg_ptr
>= end_ptr
) {
2464 tmp_ptr
= vmalloc(entry
->mem_size
+ 0x4000 + 1);
2468 memcpy(tmp_ptr
, entry
->mem_ptr
,
2470 vfree(entry
->mem_ptr
);
2471 entry
->mem_ptr
= tmp_ptr
;
2473 dbg_ptr
= entry
->mem_ptr
+ entry
->mem_size
;
2474 entry
->mem_size
+= 0x4000;
2475 end_ptr
= entry
->mem_ptr
+ entry
->mem_size
;
2478 if (stat
== RDWR_STATUS_DONE
) {
2479 entry
->mem_size
= dbg_ptr
- entry
->mem_ptr
;
2480 mwifiex_dbg(adapter
, DUMP
, "dump %s done size=0x%x\n",
2481 entry
->mem_name
, entry
->mem_size
);
2486 mwifiex_dbg(adapter
, MSG
, "== mwifiex firmware dump end ==\n");
2490 mwifiex_dbg(adapter
, ERROR
, "firmware dump failed\n");
2491 if (entry
->mem_ptr
) {
2492 vfree(entry
->mem_ptr
);
2493 entry
->mem_ptr
= NULL
;
2495 entry
->mem_size
= 0;
2497 sdio_release_host(card
->func
);
2500 static void mwifiex_sdio_device_dump_work(struct mwifiex_adapter
*adapter
)
2502 struct sdio_mmc_card
*card
= adapter
->card
;
2504 mwifiex_drv_info_dump(adapter
);
2505 if (card
->fw_dump_enh
)
2506 mwifiex_sdio_generic_fw_dump(adapter
);
2508 mwifiex_sdio_fw_dump(adapter
);
2509 mwifiex_upload_device_dump(adapter
);
2512 static void mwifiex_sdio_work(struct work_struct
*work
)
2514 if (test_and_clear_bit(MWIFIEX_IFACE_WORK_DEVICE_DUMP
,
2516 mwifiex_sdio_device_dump_work(save_adapter
);
2517 if (test_and_clear_bit(MWIFIEX_IFACE_WORK_CARD_RESET
,
2519 mwifiex_sdio_card_reset_work(save_adapter
);
2522 static DECLARE_WORK(sdio_work
, mwifiex_sdio_work
);
2523 /* This function resets the card */
2524 static void mwifiex_sdio_card_reset(struct mwifiex_adapter
*adapter
)
2526 save_adapter
= adapter
;
2527 if (test_bit(MWIFIEX_IFACE_WORK_CARD_RESET
, &iface_work_flags
))
2530 set_bit(MWIFIEX_IFACE_WORK_CARD_RESET
, &iface_work_flags
);
2532 schedule_work(&sdio_work
);
2535 /* This function dumps FW information */
2536 static void mwifiex_sdio_device_dump(struct mwifiex_adapter
*adapter
)
2538 save_adapter
= adapter
;
2539 if (test_bit(MWIFIEX_IFACE_WORK_DEVICE_DUMP
, &iface_work_flags
))
2542 set_bit(MWIFIEX_IFACE_WORK_DEVICE_DUMP
, &iface_work_flags
);
2543 schedule_work(&sdio_work
);
2546 /* Function to dump SDIO function registers and SDIO scratch registers in case
2550 mwifiex_sdio_reg_dump(struct mwifiex_adapter
*adapter
, char *drv_buf
)
2553 struct sdio_mmc_card
*cardp
= adapter
->card
;
2555 u8 count
, func
, data
, index
= 0, size
= 0;
2556 u8 reg
, reg_start
, reg_end
;
2557 char buf
[256], *ptr
;
2562 mwifiex_dbg(adapter
, MSG
, "SDIO register dump start\n");
2564 mwifiex_pm_wakeup_card(adapter
);
2566 sdio_claim_host(cardp
->func
);
2568 for (count
= 0; count
< 5; count
++) {
2569 memset(buf
, 0, sizeof(buf
));
2574 /* Read the registers of SDIO function0 */
2580 /* Read the registers of SDIO function1 */
2582 reg_start
= cardp
->reg
->func1_dump_reg_start
;
2583 reg_end
= cardp
->reg
->func1_dump_reg_end
;
2588 reg_start
= cardp
->reg
->func1_spec_reg_table
[index
++];
2589 size
= cardp
->reg
->func1_spec_reg_num
;
2590 reg_end
= cardp
->reg
->func1_spec_reg_table
[size
-1];
2593 /* Read the scratch registers of SDIO function1 */
2597 reg_start
= cardp
->reg
->func1_scratch_reg
;
2598 reg_end
= reg_start
+ MWIFIEX_SDIO_SCRATCH_SIZE
;
2602 ptr
+= sprintf(ptr
, "SDIO Func%d (%#x-%#x): ",
2603 func
, reg_start
, reg_end
);
2605 ptr
+= sprintf(ptr
, "SDIO Func%d: ", func
);
2607 for (reg
= reg_start
; reg
<= reg_end
;) {
2609 data
= sdio_f0_readb(cardp
->func
, reg
, &ret
);
2611 data
= sdio_readb(cardp
->func
, reg
, &ret
);
2614 ptr
+= sprintf(ptr
, "(%#x) ", reg
);
2616 ptr
+= sprintf(ptr
, "%02x ", data
);
2618 ptr
+= sprintf(ptr
, "ERR");
2622 if (count
== 2 && reg
< reg_end
)
2623 reg
= cardp
->reg
->func1_spec_reg_table
[index
++];
2628 mwifiex_dbg(adapter
, MSG
, "%s\n", buf
);
2629 p
+= sprintf(p
, "%s\n", buf
);
2632 sdio_release_host(cardp
->func
);
2634 mwifiex_dbg(adapter
, MSG
, "SDIO register dump end\n");
2639 static struct mwifiex_if_ops sdio_ops
= {
2640 .init_if
= mwifiex_init_sdio
,
2641 .cleanup_if
= mwifiex_cleanup_sdio
,
2642 .check_fw_status
= mwifiex_check_fw_status
,
2643 .check_winner_status
= mwifiex_check_winner_status
,
2644 .prog_fw
= mwifiex_prog_fw_w_helper
,
2645 .register_dev
= mwifiex_register_dev
,
2646 .unregister_dev
= mwifiex_unregister_dev
,
2647 .enable_int
= mwifiex_sdio_enable_host_int
,
2648 .disable_int
= mwifiex_sdio_disable_host_int
,
2649 .process_int_status
= mwifiex_process_int_status
,
2650 .host_to_card
= mwifiex_sdio_host_to_card
,
2651 .wakeup
= mwifiex_pm_wakeup_card
,
2652 .wakeup_complete
= mwifiex_pm_wakeup_card_complete
,
2655 .update_mp_end_port
= mwifiex_update_mp_end_port
,
2656 .cleanup_mpa_buf
= mwifiex_cleanup_mpa_buf
,
2657 .cmdrsp_complete
= mwifiex_sdio_cmdrsp_complete
,
2658 .event_complete
= mwifiex_sdio_event_complete
,
2659 .card_reset
= mwifiex_sdio_card_reset
,
2660 .reg_dump
= mwifiex_sdio_reg_dump
,
2661 .device_dump
= mwifiex_sdio_device_dump
,
2662 .deaggr_pkt
= mwifiex_deaggr_sdio_pkt
,
2666 * This function initializes the SDIO driver.
2668 * This initiates the semaphore and registers the device with
2672 mwifiex_sdio_init_module(void)
2674 sema_init(&add_remove_card_sem
, 1);
2676 /* Clear the flag in case user removes the card. */
2679 return sdio_register_driver(&mwifiex_sdio
);
2683 * This function cleans up the SDIO driver.
2685 * The following major steps are followed for cleanup -
2686 * - Resume the device if its suspended
2687 * - Disconnect the device if connected
2688 * - Shutdown the firmware
2689 * - Unregister the device from SDIO bus.
2692 mwifiex_sdio_cleanup_module(void)
2694 if (!down_interruptible(&add_remove_card_sem
))
2695 up(&add_remove_card_sem
);
2697 /* Set the flag as user is removing this module. */
2699 cancel_work_sync(&sdio_work
);
2701 sdio_unregister_driver(&mwifiex_sdio
);
2704 module_init(mwifiex_sdio_init_module
);
2705 module_exit(mwifiex_sdio_cleanup_module
);
2707 MODULE_AUTHOR("Marvell International Ltd.");
2708 MODULE_DESCRIPTION("Marvell WiFi-Ex SDIO Driver version " SDIO_VERSION
);
2709 MODULE_VERSION(SDIO_VERSION
);
2710 MODULE_LICENSE("GPL v2");
2711 MODULE_FIRMWARE(SD8786_DEFAULT_FW_NAME
);
2712 MODULE_FIRMWARE(SD8787_DEFAULT_FW_NAME
);
2713 MODULE_FIRMWARE(SD8797_DEFAULT_FW_NAME
);
2714 MODULE_FIRMWARE(SD8897_DEFAULT_FW_NAME
);
2715 MODULE_FIRMWARE(SD8887_DEFAULT_FW_NAME
);
2716 MODULE_FIRMWARE(SD8997_DEFAULT_FW_NAME
);