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},
76 static const struct of_device_id mwifiex_sdio_of_match_table
[] = {
77 { .compatible
= "marvell,sd8897" },
78 { .compatible
= "marvell,sd8997" },
82 static irqreturn_t
mwifiex_wake_irq_wifi(int irq
, void *priv
)
84 struct mwifiex_plt_wake_cfg
*cfg
= priv
;
86 if (cfg
->irq_wifi
>= 0) {
87 pr_info("%s: wake by wifi", __func__
);
88 cfg
->wake_by_wifi
= true;
89 disable_irq_nosync(irq
);
95 /* This function parse device tree node using mmc subnode devicetree API.
96 * The device node is saved in card->plt_of_node.
97 * if the device tree node exist and include interrupts attributes, this
98 * function will also request platform specific wakeup interrupt.
100 static int mwifiex_sdio_probe_of(struct device
*dev
, struct sdio_mmc_card
*card
)
102 struct mwifiex_plt_wake_cfg
*cfg
;
105 if (!of_match_node(mwifiex_sdio_of_match_table
, dev
->of_node
)) {
106 dev_err(dev
, "required compatible string missing\n");
110 card
->plt_of_node
= dev
->of_node
;
111 card
->plt_wake_cfg
= devm_kzalloc(dev
, sizeof(*card
->plt_wake_cfg
),
113 cfg
= card
->plt_wake_cfg
;
114 if (cfg
&& card
->plt_of_node
) {
115 cfg
->irq_wifi
= irq_of_parse_and_map(card
->plt_of_node
, 0);
116 if (!cfg
->irq_wifi
) {
118 "fail to parse irq_wifi from device tree\n");
120 ret
= devm_request_irq(dev
, cfg
->irq_wifi
,
121 mwifiex_wake_irq_wifi
,
126 "Failed to request irq_wifi %d (%d)\n",
129 disable_irq(cfg
->irq_wifi
);
139 * This function probes an mwifiex device and registers it. It allocates
140 * the card structure, enables SDIO function number and initiates the
141 * device registration and initialization procedure by adding a logical
145 mwifiex_sdio_probe(struct sdio_func
*func
, const struct sdio_device_id
*id
)
148 struct sdio_mmc_card
*card
= NULL
;
150 pr_debug("info: vendor=0x%4.04X device=0x%4.04X class=%d function=%d\n",
151 func
->vendor
, func
->device
, func
->class, func
->num
);
153 card
= kzalloc(sizeof(struct sdio_mmc_card
), GFP_KERNEL
);
158 card
->device_id
= id
;
160 func
->card
->quirks
|= MMC_QUIRK_BLKSZ_FOR_BYTE_MODE
;
162 if (id
->driver_data
) {
163 struct mwifiex_sdio_device
*data
= (void *)id
->driver_data
;
165 card
->firmware
= data
->firmware
;
166 card
->reg
= data
->reg
;
167 card
->max_ports
= data
->max_ports
;
168 card
->mp_agg_pkt_limit
= data
->mp_agg_pkt_limit
;
169 card
->supports_sdio_new_mode
= data
->supports_sdio_new_mode
;
170 card
->has_control_mask
= data
->has_control_mask
;
171 card
->tx_buf_size
= data
->tx_buf_size
;
172 card
->mp_tx_agg_buf_size
= data
->mp_tx_agg_buf_size
;
173 card
->mp_rx_agg_buf_size
= data
->mp_rx_agg_buf_size
;
174 card
->can_dump_fw
= data
->can_dump_fw
;
175 card
->fw_dump_enh
= data
->fw_dump_enh
;
176 card
->can_auto_tdls
= data
->can_auto_tdls
;
177 card
->can_ext_scan
= data
->can_ext_scan
;
180 sdio_claim_host(func
);
181 ret
= sdio_enable_func(func
);
182 sdio_release_host(func
);
185 dev_err(&func
->dev
, "failed to enable function\n");
189 /* device tree node parsing and platform specific configuration*/
190 if (func
->dev
.of_node
) {
191 ret
= mwifiex_sdio_probe_of(&func
->dev
, card
);
193 dev_err(&func
->dev
, "SDIO dt node parse failed\n");
198 ret
= mwifiex_add_card(card
, &add_remove_card_sem
, &sdio_ops
,
201 dev_err(&func
->dev
, "add card failed\n");
208 sdio_claim_host(func
);
209 sdio_disable_func(func
);
210 sdio_release_host(func
);
220 * Kernel needs to suspend all functions separately. Therefore all
221 * registered functions must have drivers with suspend and resume
222 * methods. Failing that the kernel simply removes the whole card.
224 * If already not resumed, this function turns on the traffic and
225 * sends a host sleep cancel request to the firmware.
227 static int mwifiex_sdio_resume(struct device
*dev
)
229 struct sdio_func
*func
= dev_to_sdio_func(dev
);
230 struct sdio_mmc_card
*card
;
231 struct mwifiex_adapter
*adapter
;
232 mmc_pm_flag_t pm_flag
= 0;
235 pm_flag
= sdio_get_host_pm_caps(func
);
236 card
= sdio_get_drvdata(func
);
237 if (!card
|| !card
->adapter
) {
238 pr_err("resume: invalid card or adapter\n");
242 pr_err("resume: sdio_func is not specified\n");
246 adapter
= card
->adapter
;
248 if (!adapter
->is_suspended
) {
249 mwifiex_dbg(adapter
, WARN
,
250 "device already resumed\n");
254 adapter
->is_suspended
= false;
256 /* Disable Host Sleep */
257 mwifiex_cancel_hs(mwifiex_get_priv(adapter
, MWIFIEX_BSS_ROLE_STA
),
260 /* Disable platform specific wakeup interrupt */
261 if (card
->plt_wake_cfg
&& card
->plt_wake_cfg
->irq_wifi
>= 0) {
262 disable_irq_wake(card
->plt_wake_cfg
->irq_wifi
);
263 if (!card
->plt_wake_cfg
->wake_by_wifi
)
264 disable_irq(card
->plt_wake_cfg
->irq_wifi
);
273 * This function removes the interface and frees up the card structure.
276 mwifiex_sdio_remove(struct sdio_func
*func
)
278 struct sdio_mmc_card
*card
;
279 struct mwifiex_adapter
*adapter
;
280 struct mwifiex_private
*priv
;
282 card
= sdio_get_drvdata(func
);
286 adapter
= card
->adapter
;
287 if (!adapter
|| !adapter
->priv_num
)
290 mwifiex_dbg(adapter
, INFO
, "info: SDIO func num=%d\n", func
->num
);
292 if (user_rmmod
&& !adapter
->mfg_mode
) {
293 if (adapter
->is_suspended
)
294 mwifiex_sdio_resume(adapter
->dev
);
296 mwifiex_deauthenticate_all(adapter
);
298 priv
= mwifiex_get_priv(adapter
, MWIFIEX_BSS_ROLE_ANY
);
299 mwifiex_disable_auto_ds(priv
);
300 mwifiex_init_shutdown_fw(priv
, MWIFIEX_FUNC_SHUTDOWN
);
303 mwifiex_remove_card(card
->adapter
, &add_remove_card_sem
);
309 * Kernel needs to suspend all functions separately. Therefore all
310 * registered functions must have drivers with suspend and resume
311 * methods. Failing that the kernel simply removes the whole card.
313 * If already not suspended, this function allocates and sends a host
314 * sleep activate request to the firmware and turns off the traffic.
316 static int mwifiex_sdio_suspend(struct device
*dev
)
318 struct sdio_func
*func
= dev_to_sdio_func(dev
);
319 struct sdio_mmc_card
*card
;
320 struct mwifiex_adapter
*adapter
;
321 mmc_pm_flag_t pm_flag
= 0;
325 pm_flag
= sdio_get_host_pm_caps(func
);
326 pr_debug("cmd: %s: suspend: PM flag = 0x%x\n",
327 sdio_func_id(func
), pm_flag
);
328 if (!(pm_flag
& MMC_PM_KEEP_POWER
)) {
329 pr_err("%s: cannot remain alive while host is"
330 " suspended\n", sdio_func_id(func
));
334 card
= sdio_get_drvdata(func
);
335 if (!card
|| !card
->adapter
) {
336 pr_err("suspend: invalid card or adapter\n");
340 pr_err("suspend: sdio_func is not specified\n");
344 adapter
= card
->adapter
;
346 /* Enable platform specific wakeup interrupt */
347 if (card
->plt_wake_cfg
&& card
->plt_wake_cfg
->irq_wifi
>= 0) {
348 card
->plt_wake_cfg
->wake_by_wifi
= false;
349 enable_irq(card
->plt_wake_cfg
->irq_wifi
);
350 enable_irq_wake(card
->plt_wake_cfg
->irq_wifi
);
353 /* Enable the Host Sleep */
354 if (!mwifiex_enable_hs(adapter
)) {
355 mwifiex_dbg(adapter
, ERROR
,
356 "cmd: failed to suspend\n");
357 adapter
->hs_enabling
= false;
361 mwifiex_dbg(adapter
, INFO
,
362 "cmd: suspend with MMC_PM_KEEP_POWER\n");
363 ret
= sdio_set_host_pm_flags(func
, MMC_PM_KEEP_POWER
);
365 /* Indicate device suspended */
366 adapter
->is_suspended
= true;
367 adapter
->hs_enabling
= false;
372 /* Device ID for SD8786 */
373 #define SDIO_DEVICE_ID_MARVELL_8786 (0x9116)
374 /* Device ID for SD8787 */
375 #define SDIO_DEVICE_ID_MARVELL_8787 (0x9119)
376 /* Device ID for SD8797 */
377 #define SDIO_DEVICE_ID_MARVELL_8797 (0x9129)
378 /* Device ID for SD8897 */
379 #define SDIO_DEVICE_ID_MARVELL_8897 (0x912d)
380 /* Device ID for SD8887 */
381 #define SDIO_DEVICE_ID_MARVELL_8887 (0x9135)
382 /* Device ID for SD8801 */
383 #define SDIO_DEVICE_ID_MARVELL_8801 (0x9139)
384 /* Device ID for SD8997 */
385 #define SDIO_DEVICE_ID_MARVELL_8997 (0x9141)
389 static const struct sdio_device_id mwifiex_ids
[] = {
390 {SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL
, SDIO_DEVICE_ID_MARVELL_8786
),
391 .driver_data
= (unsigned long) &mwifiex_sdio_sd8786
},
392 {SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL
, SDIO_DEVICE_ID_MARVELL_8787
),
393 .driver_data
= (unsigned long) &mwifiex_sdio_sd8787
},
394 {SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL
, SDIO_DEVICE_ID_MARVELL_8797
),
395 .driver_data
= (unsigned long) &mwifiex_sdio_sd8797
},
396 {SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL
, SDIO_DEVICE_ID_MARVELL_8897
),
397 .driver_data
= (unsigned long) &mwifiex_sdio_sd8897
},
398 {SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL
, SDIO_DEVICE_ID_MARVELL_8887
),
399 .driver_data
= (unsigned long)&mwifiex_sdio_sd8887
},
400 {SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL
, SDIO_DEVICE_ID_MARVELL_8801
),
401 .driver_data
= (unsigned long)&mwifiex_sdio_sd8801
},
402 {SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL
, SDIO_DEVICE_ID_MARVELL_8997
),
403 .driver_data
= (unsigned long)&mwifiex_sdio_sd8997
},
407 MODULE_DEVICE_TABLE(sdio
, mwifiex_ids
);
409 static const struct dev_pm_ops mwifiex_sdio_pm_ops
= {
410 .suspend
= mwifiex_sdio_suspend
,
411 .resume
= mwifiex_sdio_resume
,
414 static struct sdio_driver mwifiex_sdio
= {
415 .name
= "mwifiex_sdio",
416 .id_table
= mwifiex_ids
,
417 .probe
= mwifiex_sdio_probe
,
418 .remove
= mwifiex_sdio_remove
,
420 .owner
= THIS_MODULE
,
421 .pm
= &mwifiex_sdio_pm_ops
,
425 /* Write data into SDIO card register. Caller claims SDIO device. */
427 mwifiex_write_reg_locked(struct sdio_func
*func
, u32 reg
, u8 data
)
430 sdio_writeb(func
, data
, reg
, &ret
);
435 * This function writes data into SDIO card register.
438 mwifiex_write_reg(struct mwifiex_adapter
*adapter
, u32 reg
, u8 data
)
440 struct sdio_mmc_card
*card
= adapter
->card
;
443 sdio_claim_host(card
->func
);
444 ret
= mwifiex_write_reg_locked(card
->func
, reg
, data
);
445 sdio_release_host(card
->func
);
451 * This function reads data from SDIO card register.
454 mwifiex_read_reg(struct mwifiex_adapter
*adapter
, u32 reg
, u8
*data
)
456 struct sdio_mmc_card
*card
= adapter
->card
;
460 sdio_claim_host(card
->func
);
461 val
= sdio_readb(card
->func
, reg
, &ret
);
462 sdio_release_host(card
->func
);
470 * This function writes multiple data into SDIO card memory.
472 * This does not work in suspended mode.
475 mwifiex_write_data_sync(struct mwifiex_adapter
*adapter
,
476 u8
*buffer
, u32 pkt_len
, u32 port
)
478 struct sdio_mmc_card
*card
= adapter
->card
;
481 (port
& MWIFIEX_SDIO_BYTE_MODE_MASK
) ? BYTE_MODE
: BLOCK_MODE
;
482 u32 blk_size
= (blk_mode
== BLOCK_MODE
) ? MWIFIEX_SDIO_BLOCK_SIZE
: 1;
485 BLOCK_MODE
) ? (pkt_len
/
486 MWIFIEX_SDIO_BLOCK_SIZE
) : pkt_len
;
487 u32 ioport
= (port
& MWIFIEX_SDIO_IO_PORT_MASK
);
489 if (adapter
->is_suspended
) {
490 mwifiex_dbg(adapter
, ERROR
,
491 "%s: not allowed while suspended\n", __func__
);
495 sdio_claim_host(card
->func
);
497 ret
= sdio_writesb(card
->func
, ioport
, buffer
, blk_cnt
* blk_size
);
499 sdio_release_host(card
->func
);
505 * This function reads multiple data from SDIO card memory.
507 static int mwifiex_read_data_sync(struct mwifiex_adapter
*adapter
, u8
*buffer
,
508 u32 len
, u32 port
, u8 claim
)
510 struct sdio_mmc_card
*card
= adapter
->card
;
512 u8 blk_mode
= (port
& MWIFIEX_SDIO_BYTE_MODE_MASK
) ? BYTE_MODE
514 u32 blk_size
= (blk_mode
== BLOCK_MODE
) ? MWIFIEX_SDIO_BLOCK_SIZE
: 1;
515 u32 blk_cnt
= (blk_mode
== BLOCK_MODE
) ? (len
/ MWIFIEX_SDIO_BLOCK_SIZE
)
517 u32 ioport
= (port
& MWIFIEX_SDIO_IO_PORT_MASK
);
520 sdio_claim_host(card
->func
);
522 ret
= sdio_readsb(card
->func
, buffer
, ioport
, blk_cnt
* blk_size
);
525 sdio_release_host(card
->func
);
531 * This function wakes up the card.
533 * A host power up command is written to the card configuration
534 * register to wake up the card.
536 static int mwifiex_pm_wakeup_card(struct mwifiex_adapter
*adapter
)
538 mwifiex_dbg(adapter
, EVENT
,
539 "event: wakeup device...\n");
541 return mwifiex_write_reg(adapter
, CONFIGURATION_REG
, HOST_POWER_UP
);
545 * This function is called after the card has woken up.
547 * The card configuration register is reset.
549 static int mwifiex_pm_wakeup_card_complete(struct mwifiex_adapter
*adapter
)
551 mwifiex_dbg(adapter
, EVENT
,
552 "cmd: wakeup device completed\n");
554 return mwifiex_write_reg(adapter
, CONFIGURATION_REG
, 0);
557 static int mwifiex_sdio_dnld_fw(struct mwifiex_adapter
*adapter
,
558 struct mwifiex_fw_image
*fw
)
560 struct sdio_mmc_card
*card
= adapter
->card
;
563 sdio_claim_host(card
->func
);
564 ret
= mwifiex_dnld_fw(adapter
, fw
);
565 sdio_release_host(card
->func
);
571 * This function is used to initialize IO ports for the
572 * chipsets supporting SDIO new mode eg SD8897.
574 static int mwifiex_init_sdio_new_mode(struct mwifiex_adapter
*adapter
)
577 struct sdio_mmc_card
*card
= adapter
->card
;
579 adapter
->ioport
= MEM_PORT
;
581 /* enable sdio new mode */
582 if (mwifiex_read_reg(adapter
, card
->reg
->card_cfg_2_1_reg
, ®
))
584 if (mwifiex_write_reg(adapter
, card
->reg
->card_cfg_2_1_reg
,
585 reg
| CMD53_NEW_MODE
))
588 /* Configure cmd port and enable reading rx length from the register */
589 if (mwifiex_read_reg(adapter
, card
->reg
->cmd_cfg_0
, ®
))
591 if (mwifiex_write_reg(adapter
, card
->reg
->cmd_cfg_0
,
592 reg
| CMD_PORT_RD_LEN_EN
))
595 /* Enable Dnld/Upld ready auto reset for cmd port after cmd53 is
598 if (mwifiex_read_reg(adapter
, card
->reg
->cmd_cfg_1
, ®
))
600 if (mwifiex_write_reg(adapter
, card
->reg
->cmd_cfg_1
,
601 reg
| CMD_PORT_AUTO_EN
))
607 /* This function initializes the IO ports.
609 * The following operations are performed -
610 * - Read the IO ports (0, 1 and 2)
611 * - Set host interrupt Reset-To-Read to clear
612 * - Set auto re-enable interrupt
614 static int mwifiex_init_sdio_ioport(struct mwifiex_adapter
*adapter
)
617 struct sdio_mmc_card
*card
= adapter
->card
;
621 if (card
->supports_sdio_new_mode
) {
622 if (mwifiex_init_sdio_new_mode(adapter
))
627 /* Read the IO port */
628 if (!mwifiex_read_reg(adapter
, card
->reg
->io_port_0_reg
, ®
))
629 adapter
->ioport
|= (reg
& 0xff);
633 if (!mwifiex_read_reg(adapter
, card
->reg
->io_port_1_reg
, ®
))
634 adapter
->ioport
|= ((reg
& 0xff) << 8);
638 if (!mwifiex_read_reg(adapter
, card
->reg
->io_port_2_reg
, ®
))
639 adapter
->ioport
|= ((reg
& 0xff) << 16);
643 mwifiex_dbg(adapter
, INFO
,
644 "info: SDIO FUNC1 IO port: %#x\n", adapter
->ioport
);
646 /* Set Host interrupt reset to read to clear */
647 if (!mwifiex_read_reg(adapter
, card
->reg
->host_int_rsr_reg
, ®
))
648 mwifiex_write_reg(adapter
, card
->reg
->host_int_rsr_reg
,
649 reg
| card
->reg
->sdio_int_mask
);
653 /* Dnld/Upld ready set to auto reset */
654 if (!mwifiex_read_reg(adapter
, card
->reg
->card_misc_cfg_reg
, ®
))
655 mwifiex_write_reg(adapter
, card
->reg
->card_misc_cfg_reg
,
656 reg
| AUTO_RE_ENABLE_INT
);
664 * This function sends data to the card.
666 static int mwifiex_write_data_to_card(struct mwifiex_adapter
*adapter
,
667 u8
*payload
, u32 pkt_len
, u32 port
)
673 ret
= mwifiex_write_data_sync(adapter
, payload
, pkt_len
, port
);
676 mwifiex_dbg(adapter
, ERROR
,
677 "host_to_card, write iomem\t"
678 "(%d) failed: %d\n", i
, ret
);
679 if (mwifiex_write_reg(adapter
, CONFIGURATION_REG
, 0x04))
680 mwifiex_dbg(adapter
, ERROR
,
681 "write CFG reg failed\n");
684 if (i
> MAX_WRITE_IOMEM_RETRY
)
693 * This function gets the read port.
695 * If control port bit is set in MP read bitmap, the control port
696 * is returned, otherwise the current read port is returned and
697 * the value is increased (provided it does not reach the maximum
698 * limit, in which case it is reset to 1)
700 static int mwifiex_get_rd_port(struct mwifiex_adapter
*adapter
, u8
*port
)
702 struct sdio_mmc_card
*card
= adapter
->card
;
703 const struct mwifiex_sdio_card_reg
*reg
= card
->reg
;
704 u32 rd_bitmap
= card
->mp_rd_bitmap
;
706 mwifiex_dbg(adapter
, DATA
,
707 "data: mp_rd_bitmap=0x%08x\n", rd_bitmap
);
709 if (card
->supports_sdio_new_mode
) {
710 if (!(rd_bitmap
& reg
->data_port_mask
))
713 if (!(rd_bitmap
& (CTRL_PORT_MASK
| reg
->data_port_mask
)))
717 if ((card
->has_control_mask
) &&
718 (card
->mp_rd_bitmap
& CTRL_PORT_MASK
)) {
719 card
->mp_rd_bitmap
&= (u32
) (~CTRL_PORT_MASK
);
721 mwifiex_dbg(adapter
, DATA
,
722 "data: port=%d mp_rd_bitmap=0x%08x\n",
723 *port
, card
->mp_rd_bitmap
);
727 if (!(card
->mp_rd_bitmap
& (1 << card
->curr_rd_port
)))
730 /* We are now handling the SDIO data ports */
731 card
->mp_rd_bitmap
&= (u32
)(~(1 << card
->curr_rd_port
));
732 *port
= card
->curr_rd_port
;
734 if (++card
->curr_rd_port
== card
->max_ports
)
735 card
->curr_rd_port
= reg
->start_rd_port
;
737 mwifiex_dbg(adapter
, DATA
,
738 "data: port=%d mp_rd_bitmap=0x%08x -> 0x%08x\n",
739 *port
, rd_bitmap
, card
->mp_rd_bitmap
);
745 * This function gets the write port for data.
747 * The current write port is returned if available and the value is
748 * increased (provided it does not reach the maximum limit, in which
749 * case it is reset to 1)
751 static int mwifiex_get_wr_port_data(struct mwifiex_adapter
*adapter
, u32
*port
)
753 struct sdio_mmc_card
*card
= adapter
->card
;
754 const struct mwifiex_sdio_card_reg
*reg
= card
->reg
;
755 u32 wr_bitmap
= card
->mp_wr_bitmap
;
757 mwifiex_dbg(adapter
, DATA
,
758 "data: mp_wr_bitmap=0x%08x\n", wr_bitmap
);
760 if (!(wr_bitmap
& card
->mp_data_port_mask
)) {
761 adapter
->data_sent
= true;
765 if (card
->mp_wr_bitmap
& (1 << card
->curr_wr_port
)) {
766 card
->mp_wr_bitmap
&= (u32
) (~(1 << card
->curr_wr_port
));
767 *port
= card
->curr_wr_port
;
768 if (++card
->curr_wr_port
== card
->mp_end_port
)
769 card
->curr_wr_port
= reg
->start_wr_port
;
771 adapter
->data_sent
= true;
775 if ((card
->has_control_mask
) && (*port
== CTRL_PORT
)) {
776 mwifiex_dbg(adapter
, ERROR
,
777 "invalid data port=%d cur port=%d mp_wr_bitmap=0x%08x -> 0x%08x\n",
778 *port
, card
->curr_wr_port
, wr_bitmap
,
783 mwifiex_dbg(adapter
, DATA
,
784 "data: port=%d mp_wr_bitmap=0x%08x -> 0x%08x\n",
785 *port
, wr_bitmap
, card
->mp_wr_bitmap
);
791 * This function polls the card status.
794 mwifiex_sdio_poll_card_status(struct mwifiex_adapter
*adapter
, u8 bits
)
796 struct sdio_mmc_card
*card
= adapter
->card
;
800 for (tries
= 0; tries
< MAX_POLL_TRIES
; tries
++) {
801 if (mwifiex_read_reg(adapter
, card
->reg
->poll_reg
, &cs
))
803 else if ((cs
& bits
) == bits
)
806 usleep_range(10, 20);
809 mwifiex_dbg(adapter
, ERROR
,
810 "poll card status failed, tries = %d\n", tries
);
816 * This function reads the firmware status.
819 mwifiex_sdio_read_fw_status(struct mwifiex_adapter
*adapter
, u16
*dat
)
821 struct sdio_mmc_card
*card
= adapter
->card
;
822 const struct mwifiex_sdio_card_reg
*reg
= card
->reg
;
825 if (mwifiex_read_reg(adapter
, reg
->status_reg_0
, &fws0
))
828 if (mwifiex_read_reg(adapter
, reg
->status_reg_1
, &fws1
))
831 *dat
= (u16
) ((fws1
<< 8) | fws0
);
837 * This function disables the host interrupt.
839 * The host interrupt mask is read, the disable bit is reset and
840 * written back to the card host interrupt mask register.
842 static void mwifiex_sdio_disable_host_int(struct mwifiex_adapter
*adapter
)
844 struct sdio_mmc_card
*card
= adapter
->card
;
845 struct sdio_func
*func
= card
->func
;
847 sdio_claim_host(func
);
848 mwifiex_write_reg_locked(func
, card
->reg
->host_int_mask_reg
, 0);
849 sdio_release_irq(func
);
850 sdio_release_host(func
);
854 * This function reads the interrupt status from card.
856 static void mwifiex_interrupt_status(struct mwifiex_adapter
*adapter
)
858 struct sdio_mmc_card
*card
= adapter
->card
;
862 if (mwifiex_read_data_sync(adapter
, card
->mp_regs
,
863 card
->reg
->max_mp_regs
,
864 REG_PORT
| MWIFIEX_SDIO_BYTE_MODE_MASK
, 0)) {
865 mwifiex_dbg(adapter
, ERROR
, "read mp_regs failed\n");
869 sdio_ireg
= card
->mp_regs
[card
->reg
->host_int_status_reg
];
872 * DN_LD_HOST_INT_STATUS and/or UP_LD_HOST_INT_STATUS
873 * For SDIO new mode CMD port interrupts
874 * DN_LD_CMD_PORT_HOST_INT_STATUS and/or
875 * UP_LD_CMD_PORT_HOST_INT_STATUS
876 * Clear the interrupt status register
878 mwifiex_dbg(adapter
, INTR
,
879 "int: sdio_ireg = %#x\n", sdio_ireg
);
880 spin_lock_irqsave(&adapter
->int_lock
, flags
);
881 adapter
->int_status
|= sdio_ireg
;
882 spin_unlock_irqrestore(&adapter
->int_lock
, flags
);
887 * SDIO interrupt handler.
889 * This function reads the interrupt status from firmware and handles
890 * the interrupt in current thread (ksdioirqd) right away.
893 mwifiex_sdio_interrupt(struct sdio_func
*func
)
895 struct mwifiex_adapter
*adapter
;
896 struct sdio_mmc_card
*card
;
898 card
= sdio_get_drvdata(func
);
899 if (!card
|| !card
->adapter
) {
900 pr_err("int: func=%p card=%p adapter=%p\n",
901 func
, card
, card
? card
->adapter
: NULL
);
904 adapter
= card
->adapter
;
906 if (!adapter
->pps_uapsd_mode
&& adapter
->ps_state
== PS_STATE_SLEEP
)
907 adapter
->ps_state
= PS_STATE_AWAKE
;
909 mwifiex_interrupt_status(adapter
);
910 mwifiex_main_process(adapter
);
914 * This function enables the host interrupt.
916 * The host interrupt enable mask is written to the card
917 * host interrupt mask register.
919 static int mwifiex_sdio_enable_host_int(struct mwifiex_adapter
*adapter
)
921 struct sdio_mmc_card
*card
= adapter
->card
;
922 struct sdio_func
*func
= card
->func
;
925 sdio_claim_host(func
);
927 /* Request the SDIO IRQ */
928 ret
= sdio_claim_irq(func
, mwifiex_sdio_interrupt
);
930 mwifiex_dbg(adapter
, ERROR
,
931 "claim irq failed: ret=%d\n", ret
);
935 /* Simply write the mask to the register */
936 ret
= mwifiex_write_reg_locked(func
, card
->reg
->host_int_mask_reg
,
937 card
->reg
->host_int_enable
);
939 mwifiex_dbg(adapter
, ERROR
,
940 "enable host interrupt failed\n");
941 sdio_release_irq(func
);
945 sdio_release_host(func
);
950 * This function sends a data buffer to the card.
952 static int mwifiex_sdio_card_to_host(struct mwifiex_adapter
*adapter
,
953 u32
*type
, u8
*buffer
,
954 u32 npayload
, u32 ioport
)
960 mwifiex_dbg(adapter
, ERROR
,
961 "%s: buffer is NULL\n", __func__
);
965 ret
= mwifiex_read_data_sync(adapter
, buffer
, npayload
, ioport
, 1);
968 mwifiex_dbg(adapter
, ERROR
,
969 "%s: read iomem failed: %d\n", __func__
,
974 nb
= le16_to_cpu(*(__le16
*) (buffer
));
976 mwifiex_dbg(adapter
, ERROR
,
977 "%s: invalid packet, nb=%d npayload=%d\n",
978 __func__
, nb
, npayload
);
982 *type
= le16_to_cpu(*(__le16
*) (buffer
+ 2));
988 * This function downloads the firmware to the card.
990 * Firmware is downloaded to the card in blocks. Every block download
991 * is tested for CRC errors, and retried a number of times before
994 static int mwifiex_prog_fw_w_helper(struct mwifiex_adapter
*adapter
,
995 struct mwifiex_fw_image
*fw
)
997 struct sdio_mmc_card
*card
= adapter
->card
;
998 const struct mwifiex_sdio_card_reg
*reg
= card
->reg
;
1000 u8
*firmware
= fw
->fw_buf
;
1001 u32 firmware_len
= fw
->fw_len
;
1006 u32 txlen
, tx_blocks
= 0, tries
;
1009 if (!firmware_len
) {
1010 mwifiex_dbg(adapter
, ERROR
,
1011 "firmware image not found! Terminating download\n");
1015 mwifiex_dbg(adapter
, INFO
,
1016 "info: downloading FW image (%d bytes)\n",
1019 /* Assume that the allocated buffer is 8-byte aligned */
1020 fwbuf
= kzalloc(MWIFIEX_UPLD_SIZE
, GFP_KERNEL
);
1024 sdio_claim_host(card
->func
);
1026 /* Perform firmware data transfer */
1028 /* The host polls for the DN_LD_CARD_RDY and CARD_IO_READY
1030 ret
= mwifiex_sdio_poll_card_status(adapter
, CARD_IO_READY
|
1033 mwifiex_dbg(adapter
, ERROR
,
1034 "FW download with helper:\t"
1035 "poll status timeout @ %d\n", offset
);
1040 if (offset
>= firmware_len
)
1043 for (tries
= 0; tries
< MAX_POLL_TRIES
; tries
++) {
1044 ret
= mwifiex_read_reg(adapter
, reg
->base_0_reg
,
1047 mwifiex_dbg(adapter
, ERROR
,
1048 "dev BASE0 register read failed:\t"
1049 "base0=%#04X(%d). Terminating dnld\n",
1053 ret
= mwifiex_read_reg(adapter
, reg
->base_1_reg
,
1056 mwifiex_dbg(adapter
, ERROR
,
1057 "dev BASE1 register read failed:\t"
1058 "base1=%#04X(%d). Terminating dnld\n",
1062 len
= (u16
) (((base1
& 0xff) << 8) | (base0
& 0xff));
1067 usleep_range(10, 20);
1072 } else if (len
> MWIFIEX_UPLD_SIZE
) {
1073 mwifiex_dbg(adapter
, ERROR
,
1074 "FW dnld failed @ %d, invalid length %d\n",
1084 if (i
> MAX_WRITE_IOMEM_RETRY
) {
1085 mwifiex_dbg(adapter
, ERROR
,
1086 "FW dnld failed @ %d, over max retry\n",
1091 mwifiex_dbg(adapter
, ERROR
,
1092 "CRC indicated by the helper:\t"
1093 "len = 0x%04X, txlen = %d\n", len
, txlen
);
1095 /* Setting this to 0 to resend from same offset */
1100 /* Set blocksize to transfer - checking for last
1102 if (firmware_len
- offset
< txlen
)
1103 txlen
= firmware_len
- offset
;
1105 tx_blocks
= (txlen
+ MWIFIEX_SDIO_BLOCK_SIZE
- 1)
1106 / MWIFIEX_SDIO_BLOCK_SIZE
;
1108 /* Copy payload to buffer */
1109 memmove(fwbuf
, &firmware
[offset
], txlen
);
1112 ret
= mwifiex_write_data_sync(adapter
, fwbuf
, tx_blocks
*
1113 MWIFIEX_SDIO_BLOCK_SIZE
,
1116 mwifiex_dbg(adapter
, ERROR
,
1117 "FW download, write iomem (%d) failed @ %d\n",
1119 if (mwifiex_write_reg(adapter
, CONFIGURATION_REG
, 0x04))
1120 mwifiex_dbg(adapter
, ERROR
,
1121 "write CFG reg failed\n");
1130 mwifiex_dbg(adapter
, MSG
,
1131 "info: FW download over, size %d bytes\n", offset
);
1135 sdio_release_host(card
->func
);
1141 * This function checks the firmware status in card.
1143 static int mwifiex_check_fw_status(struct mwifiex_adapter
*adapter
,
1150 for (tries
= 0; tries
< poll_num
; tries
++) {
1151 ret
= mwifiex_sdio_read_fw_status(adapter
, &firmware_stat
);
1154 if (firmware_stat
== FIRMWARE_READY_SDIO
) {
1166 /* This function checks if WLAN is the winner.
1168 static int mwifiex_check_winner_status(struct mwifiex_adapter
*adapter
)
1172 struct sdio_mmc_card
*card
= adapter
->card
;
1174 if (mwifiex_read_reg(adapter
, card
->reg
->status_reg_0
, &winner
))
1178 adapter
->winner
= 0;
1180 adapter
->winner
= 1;
1186 * This function decode sdio aggreation pkt.
1188 * Based on the the data block size and pkt_len,
1189 * skb data will be decoded to few packets.
1191 static void mwifiex_deaggr_sdio_pkt(struct mwifiex_adapter
*adapter
,
1192 struct sk_buff
*skb
)
1194 u32 total_pkt_len
, pkt_len
;
1195 struct sk_buff
*skb_deaggr
;
1202 total_pkt_len
= skb
->len
;
1204 while (total_pkt_len
>= (SDIO_HEADER_OFFSET
+ INTF_HEADER_LEN
)) {
1205 if (total_pkt_len
< adapter
->sdio_rx_block_size
)
1207 blk_num
= *(data
+ BLOCK_NUMBER_OFFSET
);
1208 blk_size
= adapter
->sdio_rx_block_size
* blk_num
;
1209 if (blk_size
> total_pkt_len
) {
1210 mwifiex_dbg(adapter
, ERROR
,
1211 "%s: error in blk_size,\t"
1212 "blk_num=%d, blk_size=%d, total_pkt_len=%d\n",
1213 __func__
, blk_num
, blk_size
, total_pkt_len
);
1216 pkt_len
= le16_to_cpu(*(__le16
*)(data
+ SDIO_HEADER_OFFSET
));
1217 pkt_type
= le16_to_cpu(*(__le16
*)(data
+ SDIO_HEADER_OFFSET
+
1219 if ((pkt_len
+ SDIO_HEADER_OFFSET
) > blk_size
) {
1220 mwifiex_dbg(adapter
, ERROR
,
1221 "%s: error in pkt_len,\t"
1222 "pkt_len=%d, blk_size=%d\n",
1223 __func__
, pkt_len
, blk_size
);
1227 skb_deaggr
= mwifiex_alloc_dma_align_buf(pkt_len
, GFP_KERNEL
);
1230 skb_put(skb_deaggr
, pkt_len
);
1231 memcpy(skb_deaggr
->data
, data
+ SDIO_HEADER_OFFSET
, pkt_len
);
1232 skb_pull(skb_deaggr
, INTF_HEADER_LEN
);
1234 mwifiex_handle_rx_packet(adapter
, skb_deaggr
);
1236 total_pkt_len
-= blk_size
;
1241 * This function decodes a received packet.
1243 * Based on the type, the packet is treated as either a data, or
1244 * a command response, or an event, and the correct handler
1245 * function is invoked.
1247 static int mwifiex_decode_rx_packet(struct mwifiex_adapter
*adapter
,
1248 struct sk_buff
*skb
, u32 upld_typ
)
1251 __le16
*curr_ptr
= (__le16
*)skb
->data
;
1252 u16 pkt_len
= le16_to_cpu(*curr_ptr
);
1253 struct mwifiex_rxinfo
*rx_info
;
1255 if (upld_typ
!= MWIFIEX_TYPE_AGGR_DATA
) {
1256 skb_trim(skb
, pkt_len
);
1257 skb_pull(skb
, INTF_HEADER_LEN
);
1261 case MWIFIEX_TYPE_AGGR_DATA
:
1262 mwifiex_dbg(adapter
, INFO
,
1263 "info: --- Rx: Aggr Data packet ---\n");
1264 rx_info
= MWIFIEX_SKB_RXCB(skb
);
1265 rx_info
->buf_type
= MWIFIEX_TYPE_AGGR_DATA
;
1266 if (adapter
->rx_work_enabled
) {
1267 skb_queue_tail(&adapter
->rx_data_q
, skb
);
1268 atomic_inc(&adapter
->rx_pending
);
1269 adapter
->data_received
= true;
1271 mwifiex_deaggr_sdio_pkt(adapter
, skb
);
1272 dev_kfree_skb_any(skb
);
1276 case MWIFIEX_TYPE_DATA
:
1277 mwifiex_dbg(adapter
, DATA
,
1278 "info: --- Rx: Data packet ---\n");
1279 if (adapter
->rx_work_enabled
) {
1280 skb_queue_tail(&adapter
->rx_data_q
, skb
);
1281 adapter
->data_received
= true;
1282 atomic_inc(&adapter
->rx_pending
);
1284 mwifiex_handle_rx_packet(adapter
, skb
);
1288 case MWIFIEX_TYPE_CMD
:
1289 mwifiex_dbg(adapter
, CMD
,
1290 "info: --- Rx: Cmd Response ---\n");
1291 /* take care of curr_cmd = NULL case */
1292 if (!adapter
->curr_cmd
) {
1293 cmd_buf
= adapter
->upld_buf
;
1295 if (adapter
->ps_state
== PS_STATE_SLEEP_CFM
)
1296 mwifiex_process_sleep_confirm_resp(adapter
,
1300 memcpy(cmd_buf
, skb
->data
,
1301 min_t(u32
, MWIFIEX_SIZE_OF_CMD_BUFFER
,
1304 dev_kfree_skb_any(skb
);
1306 adapter
->cmd_resp_received
= true;
1307 adapter
->curr_cmd
->resp_skb
= skb
;
1311 case MWIFIEX_TYPE_EVENT
:
1312 mwifiex_dbg(adapter
, EVENT
,
1313 "info: --- Rx: Event ---\n");
1314 adapter
->event_cause
= le32_to_cpu(*(__le32
*) skb
->data
);
1316 if ((skb
->len
> 0) && (skb
->len
< MAX_EVENT_SIZE
))
1317 memcpy(adapter
->event_body
,
1318 skb
->data
+ MWIFIEX_EVENT_HEADER_LEN
,
1321 /* event cause has been saved to adapter->event_cause */
1322 adapter
->event_received
= true;
1323 adapter
->event_skb
= skb
;
1328 mwifiex_dbg(adapter
, ERROR
,
1329 "unknown upload type %#x\n", upld_typ
);
1330 dev_kfree_skb_any(skb
);
1338 * This function transfers received packets from card to driver, performing
1339 * aggregation if required.
1341 * For data received on control port, or if aggregation is disabled, the
1342 * received buffers are uploaded as separate packets. However, if aggregation
1343 * is enabled and required, the buffers are copied onto an aggregation buffer,
1344 * provided there is space left, processed and finally uploaded.
1346 static int mwifiex_sdio_card_to_host_mp_aggr(struct mwifiex_adapter
*adapter
,
1347 u16 rx_len
, u8 port
)
1349 struct sdio_mmc_card
*card
= adapter
->card
;
1350 s32 f_do_rx_aggr
= 0;
1351 s32 f_do_rx_cur
= 0;
1353 s32 f_post_aggr_cur
= 0;
1354 struct sk_buff
*skb_deaggr
;
1355 struct sk_buff
*skb
= NULL
;
1356 u32 pkt_len
, pkt_type
, mport
, pind
;
1359 if ((card
->has_control_mask
) && (port
== CTRL_PORT
)) {
1360 /* Read the command Resp without aggr */
1361 mwifiex_dbg(adapter
, CMD
,
1362 "info: %s: no aggregation for cmd\t"
1363 "response\n", __func__
);
1366 goto rx_curr_single
;
1369 if (!card
->mpa_rx
.enabled
) {
1370 mwifiex_dbg(adapter
, WARN
,
1371 "info: %s: rx aggregation disabled\n",
1375 goto rx_curr_single
;
1378 if ((!card
->has_control_mask
&& (card
->mp_rd_bitmap
&
1379 card
->reg
->data_port_mask
)) ||
1380 (card
->has_control_mask
&& (card
->mp_rd_bitmap
&
1381 (~((u32
) CTRL_PORT_MASK
))))) {
1382 /* Some more data RX pending */
1383 mwifiex_dbg(adapter
, INFO
,
1384 "info: %s: not last packet\n", __func__
);
1386 if (MP_RX_AGGR_IN_PROGRESS(card
)) {
1387 if (MP_RX_AGGR_BUF_HAS_ROOM(card
, rx_len
)) {
1390 /* No room in Aggr buf, do rx aggr now */
1392 f_post_aggr_cur
= 1;
1395 /* Rx aggr not in progress */
1400 /* No more data RX pending */
1401 mwifiex_dbg(adapter
, INFO
,
1402 "info: %s: last packet\n", __func__
);
1404 if (MP_RX_AGGR_IN_PROGRESS(card
)) {
1406 if (MP_RX_AGGR_BUF_HAS_ROOM(card
, rx_len
))
1409 /* No room in Aggr buf, do rx aggr now */
1417 mwifiex_dbg(adapter
, INFO
,
1418 "info: current packet aggregation\n");
1419 /* Curr pkt can be aggregated */
1420 mp_rx_aggr_setup(card
, rx_len
, port
);
1422 if (MP_RX_AGGR_PKT_LIMIT_REACHED(card
) ||
1423 mp_rx_aggr_port_limit_reached(card
)) {
1424 mwifiex_dbg(adapter
, INFO
,
1425 "info: %s: aggregated packet\t"
1426 "limit reached\n", __func__
);
1427 /* No more pkts allowed in Aggr buf, rx it */
1433 /* do aggr RX now */
1434 mwifiex_dbg(adapter
, DATA
,
1435 "info: do_rx_aggr: num of packets: %d\n",
1436 card
->mpa_rx
.pkt_cnt
);
1438 if (card
->supports_sdio_new_mode
) {
1442 for (i
= 0, port_count
= 0; i
< card
->max_ports
; i
++)
1443 if (card
->mpa_rx
.ports
& BIT(i
))
1446 /* Reading data from "start_port + 0" to "start_port +
1447 * port_count -1", so decrease the count by 1
1450 mport
= (adapter
->ioport
| SDIO_MPA_ADDR_BASE
|
1451 (port_count
<< 8)) + card
->mpa_rx
.start_port
;
1453 mport
= (adapter
->ioport
| SDIO_MPA_ADDR_BASE
|
1454 (card
->mpa_rx
.ports
<< 4)) +
1455 card
->mpa_rx
.start_port
;
1458 if (card
->mpa_rx
.pkt_cnt
== 1)
1459 mport
= adapter
->ioport
+ port
;
1461 if (mwifiex_read_data_sync(adapter
, card
->mpa_rx
.buf
,
1462 card
->mpa_rx
.buf_len
, mport
, 1))
1465 curr_ptr
= card
->mpa_rx
.buf
;
1467 for (pind
= 0; pind
< card
->mpa_rx
.pkt_cnt
; pind
++) {
1468 u32
*len_arr
= card
->mpa_rx
.len_arr
;
1470 /* get curr PKT len & type */
1471 pkt_len
= le16_to_cpu(*(__le16
*) &curr_ptr
[0]);
1472 pkt_type
= le16_to_cpu(*(__le16
*) &curr_ptr
[2]);
1474 /* copy pkt to deaggr buf */
1475 skb_deaggr
= mwifiex_alloc_dma_align_buf(len_arr
[pind
],
1478 mwifiex_dbg(adapter
, ERROR
, "skb allocation failure\t"
1479 "drop pkt len=%d type=%d\n",
1481 curr_ptr
+= len_arr
[pind
];
1485 skb_put(skb_deaggr
, len_arr
[pind
]);
1487 if ((pkt_type
== MWIFIEX_TYPE_DATA
||
1488 (pkt_type
== MWIFIEX_TYPE_AGGR_DATA
&&
1489 adapter
->sdio_rx_aggr_enable
)) &&
1490 (pkt_len
<= len_arr
[pind
])) {
1492 memcpy(skb_deaggr
->data
, curr_ptr
, pkt_len
);
1494 skb_trim(skb_deaggr
, pkt_len
);
1496 /* Process de-aggr packet */
1497 mwifiex_decode_rx_packet(adapter
, skb_deaggr
,
1500 mwifiex_dbg(adapter
, ERROR
,
1501 "drop wrong aggr pkt:\t"
1502 "sdio_single_port_rx_aggr=%d\t"
1503 "type=%d len=%d max_len=%d\n",
1504 adapter
->sdio_rx_aggr_enable
,
1505 pkt_type
, pkt_len
, len_arr
[pind
]);
1506 dev_kfree_skb_any(skb_deaggr
);
1508 curr_ptr
+= len_arr
[pind
];
1510 MP_RX_AGGR_BUF_RESET(card
);
1515 mwifiex_dbg(adapter
, INFO
, "info: RX: port: %d, rx_len: %d\n",
1518 skb
= mwifiex_alloc_dma_align_buf(rx_len
, GFP_KERNEL
);
1520 mwifiex_dbg(adapter
, ERROR
,
1521 "single skb allocated fail,\t"
1522 "drop pkt port=%d len=%d\n", port
, rx_len
);
1523 if (mwifiex_sdio_card_to_host(adapter
, &pkt_type
,
1524 card
->mpa_rx
.buf
, rx_len
,
1525 adapter
->ioport
+ port
))
1530 skb_put(skb
, rx_len
);
1532 if (mwifiex_sdio_card_to_host(adapter
, &pkt_type
,
1533 skb
->data
, skb
->len
,
1534 adapter
->ioport
+ port
))
1536 if (!adapter
->sdio_rx_aggr_enable
&&
1537 pkt_type
== MWIFIEX_TYPE_AGGR_DATA
) {
1538 mwifiex_dbg(adapter
, ERROR
, "drop wrong pkt type %d\t"
1539 "current SDIO RX Aggr not enabled\n",
1541 dev_kfree_skb_any(skb
);
1545 mwifiex_decode_rx_packet(adapter
, skb
, pkt_type
);
1547 if (f_post_aggr_cur
) {
1548 mwifiex_dbg(adapter
, INFO
,
1549 "info: current packet aggregation\n");
1550 /* Curr pkt can be aggregated */
1551 mp_rx_aggr_setup(card
, rx_len
, port
);
1556 if (MP_RX_AGGR_IN_PROGRESS(card
))
1557 MP_RX_AGGR_BUF_RESET(card
);
1559 if (f_do_rx_cur
&& skb
)
1560 /* Single transfer pending. Free curr buff also */
1561 dev_kfree_skb_any(skb
);
1567 * This function checks the current interrupt status.
1569 * The following interrupts are checked and handled by this function -
1572 * - Packets received
1574 * Since the firmware does not generate download ready interrupt if the
1575 * port updated is command port only, command sent interrupt checking
1576 * should be done manually, and for every SDIO interrupt.
1578 * In case of Rx packets received, the packets are uploaded from card to
1579 * host and processed accordingly.
1581 static int mwifiex_process_int_status(struct mwifiex_adapter
*adapter
)
1583 struct sdio_mmc_card
*card
= adapter
->card
;
1584 const struct mwifiex_sdio_card_reg
*reg
= card
->reg
;
1587 struct sk_buff
*skb
;
1588 u8 port
= CTRL_PORT
;
1589 u32 len_reg_l
, len_reg_u
;
1592 unsigned long flags
;
1596 spin_lock_irqsave(&adapter
->int_lock
, flags
);
1597 sdio_ireg
= adapter
->int_status
;
1598 adapter
->int_status
= 0;
1599 spin_unlock_irqrestore(&adapter
->int_lock
, flags
);
1604 /* Following interrupt is only for SDIO new mode */
1605 if (sdio_ireg
& DN_LD_CMD_PORT_HOST_INT_STATUS
&& adapter
->cmd_sent
)
1606 adapter
->cmd_sent
= false;
1608 /* Following interrupt is only for SDIO new mode */
1609 if (sdio_ireg
& UP_LD_CMD_PORT_HOST_INT_STATUS
) {
1612 /* read the len of control packet */
1613 rx_len
= card
->mp_regs
[reg
->cmd_rd_len_1
] << 8;
1614 rx_len
|= (u16
)card
->mp_regs
[reg
->cmd_rd_len_0
];
1615 rx_blocks
= DIV_ROUND_UP(rx_len
, MWIFIEX_SDIO_BLOCK_SIZE
);
1616 if (rx_len
<= INTF_HEADER_LEN
||
1617 (rx_blocks
* MWIFIEX_SDIO_BLOCK_SIZE
) >
1618 MWIFIEX_RX_DATA_BUF_SIZE
)
1620 rx_len
= (u16
) (rx_blocks
* MWIFIEX_SDIO_BLOCK_SIZE
);
1621 mwifiex_dbg(adapter
, INFO
, "info: rx_len = %d\n", rx_len
);
1623 skb
= mwifiex_alloc_dma_align_buf(rx_len
, GFP_KERNEL
);
1627 skb_put(skb
, rx_len
);
1629 if (mwifiex_sdio_card_to_host(adapter
, &pkt_type
, skb
->data
,
1630 skb
->len
, adapter
->ioport
|
1632 mwifiex_dbg(adapter
, ERROR
,
1633 "%s: failed to card_to_host", __func__
);
1634 dev_kfree_skb_any(skb
);
1638 if ((pkt_type
!= MWIFIEX_TYPE_CMD
) &&
1639 (pkt_type
!= MWIFIEX_TYPE_EVENT
))
1640 mwifiex_dbg(adapter
, ERROR
,
1641 "%s:Received wrong packet on cmd port",
1644 mwifiex_decode_rx_packet(adapter
, skb
, pkt_type
);
1647 if (sdio_ireg
& DN_LD_HOST_INT_STATUS
) {
1648 bitmap
= (u32
) card
->mp_regs
[reg
->wr_bitmap_l
];
1649 bitmap
|= ((u32
) card
->mp_regs
[reg
->wr_bitmap_u
]) << 8;
1650 if (card
->supports_sdio_new_mode
) {
1652 ((u32
) card
->mp_regs
[reg
->wr_bitmap_1l
]) << 16;
1654 ((u32
) card
->mp_regs
[reg
->wr_bitmap_1u
]) << 24;
1656 card
->mp_wr_bitmap
= bitmap
;
1658 mwifiex_dbg(adapter
, INTR
,
1659 "int: DNLD: wr_bitmap=0x%x\n",
1660 card
->mp_wr_bitmap
);
1661 if (adapter
->data_sent
&&
1662 (card
->mp_wr_bitmap
& card
->mp_data_port_mask
)) {
1663 mwifiex_dbg(adapter
, INTR
,
1664 "info: <--- Tx DONE Interrupt --->\n");
1665 adapter
->data_sent
= false;
1669 /* As firmware will not generate download ready interrupt if the port
1670 updated is command port only, cmd_sent should be done for any SDIO
1672 if (card
->has_control_mask
&& adapter
->cmd_sent
) {
1673 /* Check if firmware has attach buffer at command port and
1674 update just that in wr_bit_map. */
1675 card
->mp_wr_bitmap
|=
1676 (u32
) card
->mp_regs
[reg
->wr_bitmap_l
] & CTRL_PORT_MASK
;
1677 if (card
->mp_wr_bitmap
& CTRL_PORT_MASK
)
1678 adapter
->cmd_sent
= false;
1681 mwifiex_dbg(adapter
, INTR
, "info: cmd_sent=%d data_sent=%d\n",
1682 adapter
->cmd_sent
, adapter
->data_sent
);
1683 if (sdio_ireg
& UP_LD_HOST_INT_STATUS
) {
1684 bitmap
= (u32
) card
->mp_regs
[reg
->rd_bitmap_l
];
1685 bitmap
|= ((u32
) card
->mp_regs
[reg
->rd_bitmap_u
]) << 8;
1686 if (card
->supports_sdio_new_mode
) {
1688 ((u32
) card
->mp_regs
[reg
->rd_bitmap_1l
]) << 16;
1690 ((u32
) card
->mp_regs
[reg
->rd_bitmap_1u
]) << 24;
1692 card
->mp_rd_bitmap
= bitmap
;
1693 mwifiex_dbg(adapter
, INTR
,
1694 "int: UPLD: rd_bitmap=0x%x\n",
1695 card
->mp_rd_bitmap
);
1698 ret
= mwifiex_get_rd_port(adapter
, &port
);
1700 mwifiex_dbg(adapter
, INFO
,
1701 "info: no more rd_port available\n");
1704 len_reg_l
= reg
->rd_len_p0_l
+ (port
<< 1);
1705 len_reg_u
= reg
->rd_len_p0_u
+ (port
<< 1);
1706 rx_len
= ((u16
) card
->mp_regs
[len_reg_u
]) << 8;
1707 rx_len
|= (u16
) card
->mp_regs
[len_reg_l
];
1708 mwifiex_dbg(adapter
, INFO
,
1709 "info: RX: port=%d rx_len=%u\n",
1712 (rx_len
+ MWIFIEX_SDIO_BLOCK_SIZE
-
1713 1) / MWIFIEX_SDIO_BLOCK_SIZE
;
1714 if (rx_len
<= INTF_HEADER_LEN
||
1715 (card
->mpa_rx
.enabled
&&
1716 ((rx_blocks
* MWIFIEX_SDIO_BLOCK_SIZE
) >
1717 card
->mpa_rx
.buf_size
))) {
1718 mwifiex_dbg(adapter
, ERROR
,
1719 "invalid rx_len=%d\n",
1724 rx_len
= (u16
) (rx_blocks
* MWIFIEX_SDIO_BLOCK_SIZE
);
1725 mwifiex_dbg(adapter
, INFO
, "info: rx_len = %d\n",
1728 if (mwifiex_sdio_card_to_host_mp_aggr(adapter
, rx_len
,
1730 mwifiex_dbg(adapter
, ERROR
,
1731 "card_to_host_mpa failed: int status=%#x\n",
1742 if (mwifiex_read_reg(adapter
, CONFIGURATION_REG
, &cr
))
1743 mwifiex_dbg(adapter
, ERROR
, "read CFG reg failed\n");
1745 mwifiex_dbg(adapter
, INFO
,
1746 "info: CFG reg val = %d\n", cr
);
1748 if (mwifiex_write_reg(adapter
, CONFIGURATION_REG
, (cr
| 0x04)))
1749 mwifiex_dbg(adapter
, ERROR
,
1750 "write CFG reg failed\n");
1752 mwifiex_dbg(adapter
, INFO
, "info: write success\n");
1754 if (mwifiex_read_reg(adapter
, CONFIGURATION_REG
, &cr
))
1755 mwifiex_dbg(adapter
, ERROR
,
1756 "read CFG reg failed\n");
1758 mwifiex_dbg(adapter
, INFO
,
1759 "info: CFG reg val =%x\n", cr
);
1765 * This function aggregates transmission buffers in driver and downloads
1766 * the aggregated packet to card.
1768 * The individual packets are aggregated by copying into an aggregation
1769 * buffer and then downloaded to the card. Previous unsent packets in the
1770 * aggregation buffer are pre-copied first before new packets are added.
1771 * Aggregation is done till there is space left in the aggregation buffer,
1772 * or till new packets are available.
1774 * The function will only download the packet to the card when aggregation
1775 * stops, otherwise it will just aggregate the packet in aggregation buffer
1778 static int mwifiex_host_to_card_mp_aggr(struct mwifiex_adapter
*adapter
,
1779 u8
*payload
, u32 pkt_len
, u32 port
,
1782 struct sdio_mmc_card
*card
= adapter
->card
;
1784 s32 f_send_aggr_buf
= 0;
1785 s32 f_send_cur_buf
= 0;
1786 s32 f_precopy_cur_buf
= 0;
1787 s32 f_postcopy_cur_buf
= 0;
1791 if (!card
->mpa_tx
.enabled
||
1792 (card
->has_control_mask
&& (port
== CTRL_PORT
)) ||
1793 (card
->supports_sdio_new_mode
&& (port
== CMD_PORT_SLCT
))) {
1794 mwifiex_dbg(adapter
, WARN
,
1795 "info: %s: tx aggregation disabled\n",
1799 goto tx_curr_single
;
1803 /* More pkt in TX queue */
1804 mwifiex_dbg(adapter
, INFO
,
1805 "info: %s: more packets in queue.\n",
1808 if (MP_TX_AGGR_IN_PROGRESS(card
)) {
1809 if (MP_TX_AGGR_BUF_HAS_ROOM(card
, pkt_len
)) {
1810 f_precopy_cur_buf
= 1;
1812 if (!(card
->mp_wr_bitmap
&
1813 (1 << card
->curr_wr_port
)) ||
1814 !MP_TX_AGGR_BUF_HAS_ROOM(
1815 card
, pkt_len
+ next_pkt_len
))
1816 f_send_aggr_buf
= 1;
1818 /* No room in Aggr buf, send it */
1819 f_send_aggr_buf
= 1;
1821 if (!(card
->mp_wr_bitmap
&
1822 (1 << card
->curr_wr_port
)))
1825 f_postcopy_cur_buf
= 1;
1828 if (MP_TX_AGGR_BUF_HAS_ROOM(card
, pkt_len
) &&
1829 (card
->mp_wr_bitmap
& (1 << card
->curr_wr_port
)))
1830 f_precopy_cur_buf
= 1;
1835 /* Last pkt in TX queue */
1836 mwifiex_dbg(adapter
, INFO
,
1837 "info: %s: Last packet in Tx Queue.\n",
1840 if (MP_TX_AGGR_IN_PROGRESS(card
)) {
1841 /* some packs in Aggr buf already */
1842 f_send_aggr_buf
= 1;
1844 if (MP_TX_AGGR_BUF_HAS_ROOM(card
, pkt_len
))
1845 f_precopy_cur_buf
= 1;
1847 /* No room in Aggr buf, send it */
1854 if (f_precopy_cur_buf
) {
1855 mwifiex_dbg(adapter
, DATA
,
1856 "data: %s: precopy current buffer\n",
1858 MP_TX_AGGR_BUF_PUT(card
, payload
, pkt_len
, port
);
1860 if (MP_TX_AGGR_PKT_LIMIT_REACHED(card
) ||
1861 mp_tx_aggr_port_limit_reached(card
))
1862 /* No more pkts allowed in Aggr buf, send it */
1863 f_send_aggr_buf
= 1;
1866 if (f_send_aggr_buf
) {
1867 mwifiex_dbg(adapter
, DATA
,
1868 "data: %s: send aggr buffer: %d %d\n",
1869 __func__
, card
->mpa_tx
.start_port
,
1870 card
->mpa_tx
.ports
);
1871 if (card
->supports_sdio_new_mode
) {
1875 for (i
= 0, port_count
= 0; i
< card
->max_ports
; i
++)
1876 if (card
->mpa_tx
.ports
& BIT(i
))
1879 /* Writing data from "start_port + 0" to "start_port +
1880 * port_count -1", so decrease the count by 1
1883 mport
= (adapter
->ioport
| SDIO_MPA_ADDR_BASE
|
1884 (port_count
<< 8)) + card
->mpa_tx
.start_port
;
1886 mport
= (adapter
->ioport
| SDIO_MPA_ADDR_BASE
|
1887 (card
->mpa_tx
.ports
<< 4)) +
1888 card
->mpa_tx
.start_port
;
1891 if (card
->mpa_tx
.pkt_cnt
== 1)
1892 mport
= adapter
->ioport
+ port
;
1894 ret
= mwifiex_write_data_to_card(adapter
, card
->mpa_tx
.buf
,
1895 card
->mpa_tx
.buf_len
, mport
);
1897 /* Save the last multi port tx aggreagation info to debug log */
1898 index
= adapter
->dbg
.last_sdio_mp_index
;
1899 index
= (index
+ 1) % MWIFIEX_DBG_SDIO_MP_NUM
;
1900 adapter
->dbg
.last_sdio_mp_index
= index
;
1901 adapter
->dbg
.last_mp_wr_ports
[index
] = mport
;
1902 adapter
->dbg
.last_mp_wr_bitmap
[index
] = card
->mp_wr_bitmap
;
1903 adapter
->dbg
.last_mp_wr_len
[index
] = card
->mpa_tx
.buf_len
;
1904 adapter
->dbg
.last_mp_curr_wr_port
[index
] = card
->curr_wr_port
;
1906 MP_TX_AGGR_BUF_RESET(card
);
1910 if (f_send_cur_buf
) {
1911 mwifiex_dbg(adapter
, DATA
,
1912 "data: %s: send current buffer %d\n",
1914 ret
= mwifiex_write_data_to_card(adapter
, payload
, pkt_len
,
1915 adapter
->ioport
+ port
);
1918 if (f_postcopy_cur_buf
) {
1919 mwifiex_dbg(adapter
, DATA
,
1920 "data: %s: postcopy current buffer\n",
1922 MP_TX_AGGR_BUF_PUT(card
, payload
, pkt_len
, port
);
1929 * This function downloads data from driver to card.
1931 * Both commands and data packets are transferred to the card by this
1934 * This function adds the SDIO specific header to the front of the buffer
1935 * before transferring. The header contains the length of the packet and
1936 * the type. The firmware handles the packets based upon this set type.
1938 static int mwifiex_sdio_host_to_card(struct mwifiex_adapter
*adapter
,
1939 u8 type
, struct sk_buff
*skb
,
1940 struct mwifiex_tx_param
*tx_param
)
1942 struct sdio_mmc_card
*card
= adapter
->card
;
1946 u32 port
= CTRL_PORT
;
1947 u8
*payload
= (u8
*)skb
->data
;
1948 u32 pkt_len
= skb
->len
;
1950 /* Allocate buffer and copy payload */
1951 blk_size
= MWIFIEX_SDIO_BLOCK_SIZE
;
1952 buf_block_len
= (pkt_len
+ blk_size
- 1) / blk_size
;
1953 *(__le16
*)&payload
[0] = cpu_to_le16((u16
)pkt_len
);
1954 *(__le16
*)&payload
[2] = cpu_to_le16(type
);
1957 * This is SDIO specific header
1959 * u16 type (MWIFIEX_TYPE_DATA = 0, MWIFIEX_TYPE_CMD = 1,
1960 * MWIFIEX_TYPE_EVENT = 3)
1962 if (type
== MWIFIEX_TYPE_DATA
) {
1963 ret
= mwifiex_get_wr_port_data(adapter
, &port
);
1965 mwifiex_dbg(adapter
, ERROR
,
1966 "%s: no wr_port available\n",
1971 adapter
->cmd_sent
= true;
1972 /* Type must be MWIFIEX_TYPE_CMD */
1974 if (pkt_len
<= INTF_HEADER_LEN
||
1975 pkt_len
> MWIFIEX_UPLD_SIZE
)
1976 mwifiex_dbg(adapter
, ERROR
,
1977 "%s: payload=%p, nb=%d\n",
1978 __func__
, payload
, pkt_len
);
1980 if (card
->supports_sdio_new_mode
)
1981 port
= CMD_PORT_SLCT
;
1984 /* Transfer data to card */
1985 pkt_len
= buf_block_len
* blk_size
;
1988 ret
= mwifiex_host_to_card_mp_aggr(adapter
, payload
, pkt_len
,
1989 port
, tx_param
->next_pkt_len
1992 ret
= mwifiex_host_to_card_mp_aggr(adapter
, payload
, pkt_len
,
1996 if (type
== MWIFIEX_TYPE_CMD
)
1997 adapter
->cmd_sent
= false;
1998 if (type
== MWIFIEX_TYPE_DATA
) {
1999 adapter
->data_sent
= false;
2000 /* restore curr_wr_port in error cases */
2001 card
->curr_wr_port
= port
;
2002 card
->mp_wr_bitmap
|= (u32
)(1 << card
->curr_wr_port
);
2005 if (type
== MWIFIEX_TYPE_DATA
) {
2006 if (!(card
->mp_wr_bitmap
& (1 << card
->curr_wr_port
)))
2007 adapter
->data_sent
= true;
2009 adapter
->data_sent
= false;
2017 * This function allocates the MPA Tx and Rx buffers.
2019 static int mwifiex_alloc_sdio_mpa_buffers(struct mwifiex_adapter
*adapter
,
2020 u32 mpa_tx_buf_size
, u32 mpa_rx_buf_size
)
2022 struct sdio_mmc_card
*card
= adapter
->card
;
2026 card
->mpa_tx
.buf
= kzalloc(mpa_tx_buf_size
, GFP_KERNEL
);
2027 if (!card
->mpa_tx
.buf
) {
2032 card
->mpa_tx
.buf_size
= mpa_tx_buf_size
;
2034 rx_buf_size
= max_t(u32
, mpa_rx_buf_size
,
2035 (u32
)SDIO_MAX_AGGR_BUF_SIZE
);
2036 card
->mpa_rx
.buf
= kzalloc(rx_buf_size
, GFP_KERNEL
);
2037 if (!card
->mpa_rx
.buf
) {
2042 card
->mpa_rx
.buf_size
= rx_buf_size
;
2046 kfree(card
->mpa_tx
.buf
);
2047 kfree(card
->mpa_rx
.buf
);
2048 card
->mpa_tx
.buf_size
= 0;
2049 card
->mpa_rx
.buf_size
= 0;
2056 * This function unregisters the SDIO device.
2058 * The SDIO IRQ is released, the function is disabled and driver
2059 * data is set to null.
2062 mwifiex_unregister_dev(struct mwifiex_adapter
*adapter
)
2064 struct sdio_mmc_card
*card
= adapter
->card
;
2066 if (adapter
->card
) {
2067 sdio_claim_host(card
->func
);
2068 sdio_disable_func(card
->func
);
2069 sdio_release_host(card
->func
);
2074 * This function registers the SDIO device.
2076 * SDIO IRQ is claimed, block size is set and driver data is initialized.
2078 static int mwifiex_register_dev(struct mwifiex_adapter
*adapter
)
2081 struct sdio_mmc_card
*card
= adapter
->card
;
2082 struct sdio_func
*func
= card
->func
;
2084 /* save adapter pointer in card */
2085 card
->adapter
= adapter
;
2086 adapter
->tx_buf_size
= card
->tx_buf_size
;
2088 sdio_claim_host(func
);
2090 /* Set block size */
2091 ret
= sdio_set_block_size(card
->func
, MWIFIEX_SDIO_BLOCK_SIZE
);
2092 sdio_release_host(func
);
2094 mwifiex_dbg(adapter
, ERROR
,
2095 "cannot set SDIO block size\n");
2100 adapter
->dev
= &func
->dev
;
2102 strcpy(adapter
->fw_name
, card
->firmware
);
2103 if (card
->fw_dump_enh
) {
2104 adapter
->mem_type_mapping_tbl
= generic_mem_type_map
;
2105 adapter
->num_mem_types
= 1;
2107 adapter
->mem_type_mapping_tbl
= mem_type_mapping_tbl
;
2108 adapter
->num_mem_types
= ARRAY_SIZE(mem_type_mapping_tbl
);
2115 * This function initializes the SDIO driver.
2117 * The following initializations steps are followed -
2118 * - Read the Host interrupt status register to acknowledge
2119 * the first interrupt got from bootloader
2120 * - Disable host interrupt mask register
2122 * - Initialize SDIO variables in card
2123 * - Allocate MP registers
2124 * - Allocate MPA Tx and Rx buffers
2126 static int mwifiex_init_sdio(struct mwifiex_adapter
*adapter
)
2128 struct sdio_mmc_card
*card
= adapter
->card
;
2129 const struct mwifiex_sdio_card_reg
*reg
= card
->reg
;
2133 sdio_set_drvdata(card
->func
, card
);
2136 * Read the host_int_status_reg for ACK the first interrupt got
2137 * from the bootloader. If we don't do this we get a interrupt
2138 * as soon as we register the irq.
2140 mwifiex_read_reg(adapter
, card
->reg
->host_int_status_reg
, &sdio_ireg
);
2142 /* Get SDIO ioport */
2143 mwifiex_init_sdio_ioport(adapter
);
2145 /* Initialize SDIO variables in card */
2146 card
->mp_rd_bitmap
= 0;
2147 card
->mp_wr_bitmap
= 0;
2148 card
->curr_rd_port
= reg
->start_rd_port
;
2149 card
->curr_wr_port
= reg
->start_wr_port
;
2151 card
->mp_data_port_mask
= reg
->data_port_mask
;
2153 card
->mpa_tx
.buf_len
= 0;
2154 card
->mpa_tx
.pkt_cnt
= 0;
2155 card
->mpa_tx
.start_port
= 0;
2157 card
->mpa_tx
.enabled
= 1;
2158 card
->mpa_tx
.pkt_aggr_limit
= card
->mp_agg_pkt_limit
;
2160 card
->mpa_rx
.buf_len
= 0;
2161 card
->mpa_rx
.pkt_cnt
= 0;
2162 card
->mpa_rx
.start_port
= 0;
2164 card
->mpa_rx
.enabled
= 1;
2165 card
->mpa_rx
.pkt_aggr_limit
= card
->mp_agg_pkt_limit
;
2167 /* Allocate buffers for SDIO MP-A */
2168 card
->mp_regs
= kzalloc(reg
->max_mp_regs
, GFP_KERNEL
);
2172 /* Allocate skb pointer buffers */
2173 card
->mpa_rx
.skb_arr
= kzalloc((sizeof(void *)) *
2174 card
->mp_agg_pkt_limit
, GFP_KERNEL
);
2175 if (!card
->mpa_rx
.skb_arr
) {
2176 kfree(card
->mp_regs
);
2180 card
->mpa_rx
.len_arr
= kzalloc(sizeof(*card
->mpa_rx
.len_arr
) *
2181 card
->mp_agg_pkt_limit
, GFP_KERNEL
);
2182 if (!card
->mpa_rx
.len_arr
) {
2183 kfree(card
->mp_regs
);
2184 kfree(card
->mpa_rx
.skb_arr
);
2188 ret
= mwifiex_alloc_sdio_mpa_buffers(adapter
,
2189 card
->mp_tx_agg_buf_size
,
2190 card
->mp_rx_agg_buf_size
);
2192 /* Allocate 32k MPA Tx/Rx buffers if 64k memory allocation fails */
2193 if (ret
&& (card
->mp_tx_agg_buf_size
== MWIFIEX_MP_AGGR_BUF_SIZE_MAX
||
2194 card
->mp_rx_agg_buf_size
== MWIFIEX_MP_AGGR_BUF_SIZE_MAX
)) {
2195 /* Disable rx single port aggregation */
2196 adapter
->host_disable_sdio_rx_aggr
= true;
2198 ret
= mwifiex_alloc_sdio_mpa_buffers
2199 (adapter
, MWIFIEX_MP_AGGR_BUF_SIZE_32K
,
2200 MWIFIEX_MP_AGGR_BUF_SIZE_32K
);
2202 /* Disable multi port aggregation */
2203 card
->mpa_tx
.enabled
= 0;
2204 card
->mpa_rx
.enabled
= 0;
2208 adapter
->auto_tdls
= card
->can_auto_tdls
;
2209 adapter
->ext_scan
= card
->can_ext_scan
;
2214 * This function resets the MPA Tx and Rx buffers.
2216 static void mwifiex_cleanup_mpa_buf(struct mwifiex_adapter
*adapter
)
2218 struct sdio_mmc_card
*card
= adapter
->card
;
2220 MP_TX_AGGR_BUF_RESET(card
);
2221 MP_RX_AGGR_BUF_RESET(card
);
2225 * This function cleans up the allocated card buffers.
2227 * The following are freed by this function -
2232 static void mwifiex_cleanup_sdio(struct mwifiex_adapter
*adapter
)
2234 struct sdio_mmc_card
*card
= adapter
->card
;
2236 kfree(card
->mp_regs
);
2237 kfree(card
->mpa_rx
.skb_arr
);
2238 kfree(card
->mpa_rx
.len_arr
);
2239 kfree(card
->mpa_tx
.buf
);
2240 kfree(card
->mpa_rx
.buf
);
2241 sdio_set_drvdata(card
->func
, NULL
);
2246 * This function updates the MP end port in card.
2249 mwifiex_update_mp_end_port(struct mwifiex_adapter
*adapter
, u16 port
)
2251 struct sdio_mmc_card
*card
= adapter
->card
;
2252 const struct mwifiex_sdio_card_reg
*reg
= card
->reg
;
2255 card
->mp_end_port
= port
;
2257 card
->mp_data_port_mask
= reg
->data_port_mask
;
2259 if (reg
->start_wr_port
) {
2260 for (i
= 1; i
<= card
->max_ports
- card
->mp_end_port
; i
++)
2261 card
->mp_data_port_mask
&=
2262 ~(1 << (card
->max_ports
- i
));
2265 card
->curr_wr_port
= reg
->start_wr_port
;
2267 mwifiex_dbg(adapter
, CMD
,
2268 "cmd: mp_end_port %d, data port mask 0x%x\n",
2269 port
, card
->mp_data_port_mask
);
2272 static void mwifiex_recreate_adapter(struct sdio_mmc_card
*card
)
2274 struct sdio_func
*func
= card
->func
;
2275 const struct sdio_device_id
*device_id
= card
->device_id
;
2277 /* TODO mmc_hw_reset does not require destroying and re-probing the
2278 * whole adapter. Hence there was no need to for this rube-goldberg
2279 * design to reload the fw from an external workqueue. If we don't
2280 * destroy the adapter we could reload the fw from
2281 * mwifiex_main_work_queue directly.
2282 * The real difficulty with fw reset is to restore all the user
2283 * settings applied through ioctl. By destroying and recreating the
2284 * adapter, we take the easy way out, since we rely on user space to
2285 * restore them. We assume that user space will treat the new
2286 * incarnation of the adapter(interfaces) as if they had been just
2287 * discovered and initializes them from scratch.
2290 mwifiex_sdio_remove(func
);
2292 /* power cycle the adapter */
2293 sdio_claim_host(func
);
2294 mmc_hw_reset(func
->card
->host
);
2295 sdio_release_host(func
);
2297 mwifiex_sdio_probe(func
, device_id
);
2300 static struct mwifiex_adapter
*save_adapter
;
2301 static void mwifiex_sdio_card_reset_work(struct mwifiex_adapter
*adapter
)
2303 struct sdio_mmc_card
*card
= adapter
->card
;
2305 /* TODO card pointer is unprotected. If the adapter is removed
2306 * physically, sdio core might trigger mwifiex_sdio_remove, before this
2307 * workqueue is run, which will destroy the adapter struct. When this
2308 * workqueue eventually exceutes it will dereference an invalid adapter
2311 mwifiex_recreate_adapter(card
);
2314 /* This function read/write firmware */
2316 rdwr_status
mwifiex_sdio_rdwr_firmware(struct mwifiex_adapter
*adapter
,
2319 struct sdio_mmc_card
*card
= adapter
->card
;
2323 sdio_writeb(card
->func
, card
->reg
->fw_dump_host_ready
,
2324 card
->reg
->fw_dump_ctrl
, &ret
);
2326 mwifiex_dbg(adapter
, ERROR
, "SDIO Write ERR\n");
2327 return RDWR_STATUS_FAILURE
;
2329 for (tries
= 0; tries
< MAX_POLL_TRIES
; tries
++) {
2330 ctrl_data
= sdio_readb(card
->func
, card
->reg
->fw_dump_ctrl
,
2333 mwifiex_dbg(adapter
, ERROR
, "SDIO read err\n");
2334 return RDWR_STATUS_FAILURE
;
2336 if (ctrl_data
== FW_DUMP_DONE
)
2338 if (doneflag
&& ctrl_data
== doneflag
)
2339 return RDWR_STATUS_DONE
;
2340 if (ctrl_data
!= card
->reg
->fw_dump_host_ready
) {
2341 mwifiex_dbg(adapter
, WARN
,
2342 "The ctrl reg was changed, re-try again\n");
2343 sdio_writeb(card
->func
, card
->reg
->fw_dump_host_ready
,
2344 card
->reg
->fw_dump_ctrl
, &ret
);
2346 mwifiex_dbg(adapter
, ERROR
, "SDIO write err\n");
2347 return RDWR_STATUS_FAILURE
;
2350 usleep_range(100, 200);
2352 if (ctrl_data
== card
->reg
->fw_dump_host_ready
) {
2353 mwifiex_dbg(adapter
, ERROR
,
2354 "Fail to pull ctrl_data\n");
2355 return RDWR_STATUS_FAILURE
;
2358 return RDWR_STATUS_SUCCESS
;
2361 /* This function dump firmware memory to file */
2362 static void mwifiex_sdio_fw_dump(struct mwifiex_adapter
*adapter
)
2364 struct sdio_mmc_card
*card
= adapter
->card
;
2366 unsigned int reg
, reg_start
, reg_end
;
2367 u8
*dbg_ptr
, *end_ptr
, dump_num
, idx
, i
, read_reg
, doneflag
= 0;
2368 enum rdwr_status stat
;
2371 if (!card
->can_dump_fw
)
2374 for (idx
= 0; idx
< ARRAY_SIZE(mem_type_mapping_tbl
); idx
++) {
2375 struct memory_type_mapping
*entry
= &mem_type_mapping_tbl
[idx
];
2377 if (entry
->mem_ptr
) {
2378 vfree(entry
->mem_ptr
);
2379 entry
->mem_ptr
= NULL
;
2381 entry
->mem_size
= 0;
2384 mwifiex_pm_wakeup_card(adapter
);
2385 sdio_claim_host(card
->func
);
2387 mwifiex_dbg(adapter
, MSG
, "== mwifiex firmware dump start ==\n");
2389 stat
= mwifiex_sdio_rdwr_firmware(adapter
, doneflag
);
2390 if (stat
== RDWR_STATUS_FAILURE
)
2393 reg
= card
->reg
->fw_dump_start
;
2394 /* Read the number of the memories which will dump */
2395 dump_num
= sdio_readb(card
->func
, reg
, &ret
);
2397 mwifiex_dbg(adapter
, ERROR
, "SDIO read memory length err\n");
2401 /* Read the length of every memory which will dump */
2402 for (idx
= 0; idx
< dump_num
; idx
++) {
2403 struct memory_type_mapping
*entry
= &mem_type_mapping_tbl
[idx
];
2405 stat
= mwifiex_sdio_rdwr_firmware(adapter
, doneflag
);
2406 if (stat
== RDWR_STATUS_FAILURE
)
2410 reg
= card
->reg
->fw_dump_start
;
2411 for (i
= 0; i
< 4; i
++) {
2412 read_reg
= sdio_readb(card
->func
, reg
, &ret
);
2414 mwifiex_dbg(adapter
, ERROR
, "SDIO read err\n");
2417 memory_size
|= (read_reg
<< i
*8);
2421 if (memory_size
== 0) {
2422 mwifiex_dbg(adapter
, DUMP
, "Firmware dump Finished!\n");
2423 ret
= mwifiex_write_reg(adapter
,
2424 card
->reg
->fw_dump_ctrl
,
2427 mwifiex_dbg(adapter
, ERROR
, "SDIO write err\n");
2433 mwifiex_dbg(adapter
, DUMP
,
2434 "%s_SIZE=0x%x\n", entry
->mem_name
, memory_size
);
2435 entry
->mem_ptr
= vmalloc(memory_size
+ 1);
2436 entry
->mem_size
= memory_size
;
2437 if (!entry
->mem_ptr
) {
2438 mwifiex_dbg(adapter
, ERROR
, "Vmalloc %s failed\n",
2442 dbg_ptr
= entry
->mem_ptr
;
2443 end_ptr
= dbg_ptr
+ memory_size
;
2445 doneflag
= entry
->done_flag
;
2446 mwifiex_dbg(adapter
, DUMP
,
2447 "Start %s output, please wait...\n",
2451 stat
= mwifiex_sdio_rdwr_firmware(adapter
, doneflag
);
2452 if (stat
== RDWR_STATUS_FAILURE
)
2455 reg_start
= card
->reg
->fw_dump_start
;
2456 reg_end
= card
->reg
->fw_dump_end
;
2457 for (reg
= reg_start
; reg
<= reg_end
; reg
++) {
2458 *dbg_ptr
= sdio_readb(card
->func
, reg
, &ret
);
2460 mwifiex_dbg(adapter
, ERROR
,
2464 if (dbg_ptr
< end_ptr
)
2467 mwifiex_dbg(adapter
, ERROR
,
2468 "Allocated buf not enough\n");
2471 if (stat
!= RDWR_STATUS_DONE
)
2474 mwifiex_dbg(adapter
, DUMP
, "%s done: size=0x%tx\n",
2475 entry
->mem_name
, dbg_ptr
- entry
->mem_ptr
);
2479 mwifiex_dbg(adapter
, MSG
, "== mwifiex firmware dump end ==\n");
2482 sdio_release_host(card
->func
);
2485 static void mwifiex_sdio_generic_fw_dump(struct mwifiex_adapter
*adapter
)
2487 struct sdio_mmc_card
*card
= adapter
->card
;
2488 struct memory_type_mapping
*entry
= &generic_mem_type_map
[0];
2489 unsigned int reg
, reg_start
, reg_end
;
2490 u8 start_flag
= 0, done_flag
= 0;
2491 u8
*dbg_ptr
, *end_ptr
;
2492 enum rdwr_status stat
;
2493 int ret
= -1, tries
;
2495 if (!card
->fw_dump_enh
)
2498 if (entry
->mem_ptr
) {
2499 vfree(entry
->mem_ptr
);
2500 entry
->mem_ptr
= NULL
;
2502 entry
->mem_size
= 0;
2504 mwifiex_pm_wakeup_card(adapter
);
2505 sdio_claim_host(card
->func
);
2507 mwifiex_dbg(adapter
, MSG
, "== mwifiex firmware dump start ==\n");
2509 stat
= mwifiex_sdio_rdwr_firmware(adapter
, done_flag
);
2510 if (stat
== RDWR_STATUS_FAILURE
)
2513 reg_start
= card
->reg
->fw_dump_start
;
2514 reg_end
= card
->reg
->fw_dump_end
;
2515 for (reg
= reg_start
; reg
<= reg_end
; reg
++) {
2516 for (tries
= 0; tries
< MAX_POLL_TRIES
; tries
++) {
2517 start_flag
= sdio_readb(card
->func
, reg
, &ret
);
2519 mwifiex_dbg(adapter
, ERROR
,
2523 if (start_flag
== 0)
2525 if (tries
== MAX_POLL_TRIES
) {
2526 mwifiex_dbg(adapter
, ERROR
,
2527 "FW not ready to dump\n");
2532 usleep_range(100, 200);
2535 entry
->mem_ptr
= vmalloc(0xf0000 + 1);
2536 if (!entry
->mem_ptr
) {
2540 dbg_ptr
= entry
->mem_ptr
;
2541 entry
->mem_size
= 0xf0000;
2542 end_ptr
= dbg_ptr
+ entry
->mem_size
;
2544 done_flag
= entry
->done_flag
;
2545 mwifiex_dbg(adapter
, DUMP
,
2546 "Start %s output, please wait...\n", entry
->mem_name
);
2549 stat
= mwifiex_sdio_rdwr_firmware(adapter
, done_flag
);
2550 if (stat
== RDWR_STATUS_FAILURE
)
2552 for (reg
= reg_start
; reg
<= reg_end
; reg
++) {
2553 *dbg_ptr
= sdio_readb(card
->func
, reg
, &ret
);
2555 mwifiex_dbg(adapter
, ERROR
,
2560 if (dbg_ptr
>= end_ptr
) {
2563 tmp_ptr
= vmalloc(entry
->mem_size
+ 0x4000 + 1);
2567 memcpy(tmp_ptr
, entry
->mem_ptr
,
2569 vfree(entry
->mem_ptr
);
2570 entry
->mem_ptr
= tmp_ptr
;
2572 dbg_ptr
= entry
->mem_ptr
+ entry
->mem_size
;
2573 entry
->mem_size
+= 0x4000;
2574 end_ptr
= entry
->mem_ptr
+ entry
->mem_size
;
2577 if (stat
== RDWR_STATUS_DONE
) {
2578 entry
->mem_size
= dbg_ptr
- entry
->mem_ptr
;
2579 mwifiex_dbg(adapter
, DUMP
, "dump %s done size=0x%x\n",
2580 entry
->mem_name
, entry
->mem_size
);
2585 mwifiex_dbg(adapter
, MSG
, "== mwifiex firmware dump end ==\n");
2589 mwifiex_dbg(adapter
, ERROR
, "firmware dump failed\n");
2590 if (entry
->mem_ptr
) {
2591 vfree(entry
->mem_ptr
);
2592 entry
->mem_ptr
= NULL
;
2594 entry
->mem_size
= 0;
2596 sdio_release_host(card
->func
);
2599 static void mwifiex_sdio_device_dump_work(struct mwifiex_adapter
*adapter
)
2601 struct sdio_mmc_card
*card
= adapter
->card
;
2603 mwifiex_drv_info_dump(adapter
);
2604 if (card
->fw_dump_enh
)
2605 mwifiex_sdio_generic_fw_dump(adapter
);
2607 mwifiex_sdio_fw_dump(adapter
);
2608 mwifiex_upload_device_dump(adapter
);
2611 static void mwifiex_sdio_work(struct work_struct
*work
)
2613 if (test_and_clear_bit(MWIFIEX_IFACE_WORK_DEVICE_DUMP
,
2615 mwifiex_sdio_device_dump_work(save_adapter
);
2616 if (test_and_clear_bit(MWIFIEX_IFACE_WORK_CARD_RESET
,
2618 mwifiex_sdio_card_reset_work(save_adapter
);
2621 static DECLARE_WORK(sdio_work
, mwifiex_sdio_work
);
2622 /* This function resets the card */
2623 static void mwifiex_sdio_card_reset(struct mwifiex_adapter
*adapter
)
2625 save_adapter
= adapter
;
2626 if (test_bit(MWIFIEX_IFACE_WORK_CARD_RESET
, &iface_work_flags
))
2629 set_bit(MWIFIEX_IFACE_WORK_CARD_RESET
, &iface_work_flags
);
2631 schedule_work(&sdio_work
);
2634 /* This function dumps FW information */
2635 static void mwifiex_sdio_device_dump(struct mwifiex_adapter
*adapter
)
2637 save_adapter
= adapter
;
2638 if (test_bit(MWIFIEX_IFACE_WORK_DEVICE_DUMP
, &iface_work_flags
))
2641 set_bit(MWIFIEX_IFACE_WORK_DEVICE_DUMP
, &iface_work_flags
);
2642 schedule_work(&sdio_work
);
2645 /* Function to dump SDIO function registers and SDIO scratch registers in case
2649 mwifiex_sdio_reg_dump(struct mwifiex_adapter
*adapter
, char *drv_buf
)
2652 struct sdio_mmc_card
*cardp
= adapter
->card
;
2654 u8 count
, func
, data
, index
= 0, size
= 0;
2655 u8 reg
, reg_start
, reg_end
;
2656 char buf
[256], *ptr
;
2661 mwifiex_dbg(adapter
, MSG
, "SDIO register dump start\n");
2663 mwifiex_pm_wakeup_card(adapter
);
2665 sdio_claim_host(cardp
->func
);
2667 for (count
= 0; count
< 5; count
++) {
2668 memset(buf
, 0, sizeof(buf
));
2673 /* Read the registers of SDIO function0 */
2679 /* Read the registers of SDIO function1 */
2681 reg_start
= cardp
->reg
->func1_dump_reg_start
;
2682 reg_end
= cardp
->reg
->func1_dump_reg_end
;
2687 reg_start
= cardp
->reg
->func1_spec_reg_table
[index
++];
2688 size
= cardp
->reg
->func1_spec_reg_num
;
2689 reg_end
= cardp
->reg
->func1_spec_reg_table
[size
-1];
2692 /* Read the scratch registers of SDIO function1 */
2696 reg_start
= cardp
->reg
->func1_scratch_reg
;
2697 reg_end
= reg_start
+ MWIFIEX_SDIO_SCRATCH_SIZE
;
2701 ptr
+= sprintf(ptr
, "SDIO Func%d (%#x-%#x): ",
2702 func
, reg_start
, reg_end
);
2704 ptr
+= sprintf(ptr
, "SDIO Func%d: ", func
);
2706 for (reg
= reg_start
; reg
<= reg_end
;) {
2708 data
= sdio_f0_readb(cardp
->func
, reg
, &ret
);
2710 data
= sdio_readb(cardp
->func
, reg
, &ret
);
2713 ptr
+= sprintf(ptr
, "(%#x) ", reg
);
2715 ptr
+= sprintf(ptr
, "%02x ", data
);
2717 ptr
+= sprintf(ptr
, "ERR");
2721 if (count
== 2 && reg
< reg_end
)
2722 reg
= cardp
->reg
->func1_spec_reg_table
[index
++];
2727 mwifiex_dbg(adapter
, MSG
, "%s\n", buf
);
2728 p
+= sprintf(p
, "%s\n", buf
);
2731 sdio_release_host(cardp
->func
);
2733 mwifiex_dbg(adapter
, MSG
, "SDIO register dump end\n");
2738 static struct mwifiex_if_ops sdio_ops
= {
2739 .init_if
= mwifiex_init_sdio
,
2740 .cleanup_if
= mwifiex_cleanup_sdio
,
2741 .check_fw_status
= mwifiex_check_fw_status
,
2742 .check_winner_status
= mwifiex_check_winner_status
,
2743 .prog_fw
= mwifiex_prog_fw_w_helper
,
2744 .register_dev
= mwifiex_register_dev
,
2745 .unregister_dev
= mwifiex_unregister_dev
,
2746 .enable_int
= mwifiex_sdio_enable_host_int
,
2747 .disable_int
= mwifiex_sdio_disable_host_int
,
2748 .process_int_status
= mwifiex_process_int_status
,
2749 .host_to_card
= mwifiex_sdio_host_to_card
,
2750 .wakeup
= mwifiex_pm_wakeup_card
,
2751 .wakeup_complete
= mwifiex_pm_wakeup_card_complete
,
2754 .update_mp_end_port
= mwifiex_update_mp_end_port
,
2755 .cleanup_mpa_buf
= mwifiex_cleanup_mpa_buf
,
2756 .cmdrsp_complete
= mwifiex_sdio_cmdrsp_complete
,
2757 .event_complete
= mwifiex_sdio_event_complete
,
2758 .dnld_fw
= mwifiex_sdio_dnld_fw
,
2759 .card_reset
= mwifiex_sdio_card_reset
,
2760 .reg_dump
= mwifiex_sdio_reg_dump
,
2761 .device_dump
= mwifiex_sdio_device_dump
,
2762 .deaggr_pkt
= mwifiex_deaggr_sdio_pkt
,
2766 * This function initializes the SDIO driver.
2768 * This initiates the semaphore and registers the device with
2772 mwifiex_sdio_init_module(void)
2774 sema_init(&add_remove_card_sem
, 1);
2776 /* Clear the flag in case user removes the card. */
2779 return sdio_register_driver(&mwifiex_sdio
);
2783 * This function cleans up the SDIO driver.
2785 * The following major steps are followed for cleanup -
2786 * - Resume the device if its suspended
2787 * - Disconnect the device if connected
2788 * - Shutdown the firmware
2789 * - Unregister the device from SDIO bus.
2792 mwifiex_sdio_cleanup_module(void)
2794 if (!down_interruptible(&add_remove_card_sem
))
2795 up(&add_remove_card_sem
);
2797 /* Set the flag as user is removing this module. */
2799 cancel_work_sync(&sdio_work
);
2801 sdio_unregister_driver(&mwifiex_sdio
);
2804 module_init(mwifiex_sdio_init_module
);
2805 module_exit(mwifiex_sdio_cleanup_module
);
2807 MODULE_AUTHOR("Marvell International Ltd.");
2808 MODULE_DESCRIPTION("Marvell WiFi-Ex SDIO Driver version " SDIO_VERSION
);
2809 MODULE_VERSION(SDIO_VERSION
);
2810 MODULE_LICENSE("GPL v2");
2811 MODULE_FIRMWARE(SD8786_DEFAULT_FW_NAME
);
2812 MODULE_FIRMWARE(SD8787_DEFAULT_FW_NAME
);
2813 MODULE_FIRMWARE(SD8797_DEFAULT_FW_NAME
);
2814 MODULE_FIRMWARE(SD8897_DEFAULT_FW_NAME
);
2815 MODULE_FIRMWARE(SD8887_DEFAULT_FW_NAME
);
2816 MODULE_FIRMWARE(SD8997_DEFAULT_FW_NAME
);