2 * Marvell Wireless LAN device driver: SDIO specific handling
4 * Copyright (C) 2011-2014, Marvell International Ltd.
6 * This software file (the "File") is distributed by Marvell International
7 * Ltd. under the terms of the GNU General Public License Version 2, June 1991
8 * (the "License"). You may use, redistribute and/or modify this File in
9 * accordance with the terms and conditions of the License, a copy of which
10 * is available by writing to the Free Software Foundation, Inc.,
11 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the
12 * worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
14 * THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
16 * ARE EXPRESSLY DISCLAIMED. The License provides additional details about
17 * this warranty disclaimer.
20 #include <linux/firmware.h>
32 #define SDIO_VERSION "1.0"
34 /* The mwifiex_sdio_remove() callback function is called when
35 * user removes this module from kernel space or ejects
36 * the card from the slot. The driver handles these 2 cases
38 * If the user is removing the module, the few commands (FUNC_SHUTDOWN,
39 * HS_CANCEL etc.) are sent to the firmware.
40 * If the card is removed, there is no need to send these command.
42 * The variable 'user_rmmod' is used to distinguish these two
43 * scenarios. This flag is initialized as FALSE in case the card
44 * is removed, and will be set to TRUE for module removal when
45 * module_exit function is called.
49 static struct mwifiex_if_ops sdio_ops
;
50 static unsigned long iface_work_flags
;
52 static struct semaphore add_remove_card_sem
;
54 static struct memory_type_mapping mem_type_mapping_tbl
[] = {
55 {"ITCM", NULL
, 0, 0xF0},
56 {"DTCM", NULL
, 0, 0xF1},
57 {"SQRAM", NULL
, 0, 0xF2},
58 {"APU", NULL
, 0, 0xF3},
59 {"CIU", NULL
, 0, 0xF4},
60 {"ICU", NULL
, 0, 0xF5},
61 {"MAC", NULL
, 0, 0xF6},
62 {"EXT7", NULL
, 0, 0xF7},
63 {"EXT8", NULL
, 0, 0xF8},
64 {"EXT9", NULL
, 0, 0xF9},
65 {"EXT10", NULL
, 0, 0xFA},
66 {"EXT11", NULL
, 0, 0xFB},
67 {"EXT12", NULL
, 0, 0xFC},
68 {"EXT13", NULL
, 0, 0xFD},
69 {"EXTLAST", NULL
, 0, 0xFE},
75 * This function probes an mwifiex device and registers it. It allocates
76 * the card structure, enables SDIO function number and initiates the
77 * device registration and initialization procedure by adding a logical
81 mwifiex_sdio_probe(struct sdio_func
*func
, const struct sdio_device_id
*id
)
84 struct sdio_mmc_card
*card
= NULL
;
86 pr_debug("info: vendor=0x%4.04X device=0x%4.04X class=%d function=%d\n",
87 func
->vendor
, func
->device
, func
->class, func
->num
);
89 card
= kzalloc(sizeof(struct sdio_mmc_card
), GFP_KERNEL
);
95 func
->card
->quirks
|= MMC_QUIRK_BLKSZ_FOR_BYTE_MODE
;
97 if (id
->driver_data
) {
98 struct mwifiex_sdio_device
*data
= (void *)id
->driver_data
;
100 card
->firmware
= data
->firmware
;
101 card
->reg
= data
->reg
;
102 card
->max_ports
= data
->max_ports
;
103 card
->mp_agg_pkt_limit
= data
->mp_agg_pkt_limit
;
104 card
->supports_sdio_new_mode
= data
->supports_sdio_new_mode
;
105 card
->has_control_mask
= data
->has_control_mask
;
106 card
->tx_buf_size
= data
->tx_buf_size
;
107 card
->mp_tx_agg_buf_size
= data
->mp_tx_agg_buf_size
;
108 card
->mp_rx_agg_buf_size
= data
->mp_rx_agg_buf_size
;
109 card
->can_dump_fw
= data
->can_dump_fw
;
110 card
->can_auto_tdls
= data
->can_auto_tdls
;
111 card
->can_ext_scan
= data
->can_ext_scan
;
114 sdio_claim_host(func
);
115 ret
= sdio_enable_func(func
);
116 sdio_release_host(func
);
119 pr_err("%s: failed to enable function\n", __func__
);
124 if (mwifiex_add_card(card
, &add_remove_card_sem
, &sdio_ops
,
126 pr_err("%s: add card failed\n", __func__
);
128 sdio_claim_host(func
);
129 ret
= sdio_disable_func(func
);
130 sdio_release_host(func
);
140 * Kernel needs to suspend all functions separately. Therefore all
141 * registered functions must have drivers with suspend and resume
142 * methods. Failing that the kernel simply removes the whole card.
144 * If already not resumed, this function turns on the traffic and
145 * sends a host sleep cancel request to the firmware.
147 static int mwifiex_sdio_resume(struct device
*dev
)
149 struct sdio_func
*func
= dev_to_sdio_func(dev
);
150 struct sdio_mmc_card
*card
;
151 struct mwifiex_adapter
*adapter
;
152 mmc_pm_flag_t pm_flag
= 0;
155 pm_flag
= sdio_get_host_pm_caps(func
);
156 card
= sdio_get_drvdata(func
);
157 if (!card
|| !card
->adapter
) {
158 pr_err("resume: invalid card or adapter\n");
162 pr_err("resume: sdio_func is not specified\n");
166 adapter
= card
->adapter
;
168 if (!adapter
->is_suspended
) {
169 dev_warn(adapter
->dev
, "device already resumed\n");
173 adapter
->is_suspended
= false;
175 /* Disable Host Sleep */
176 mwifiex_cancel_hs(mwifiex_get_priv(adapter
, MWIFIEX_BSS_ROLE_STA
),
185 * This function removes the interface and frees up the card structure.
188 mwifiex_sdio_remove(struct sdio_func
*func
)
190 struct sdio_mmc_card
*card
;
191 struct mwifiex_adapter
*adapter
;
192 struct mwifiex_private
*priv
;
194 pr_debug("info: SDIO func num=%d\n", func
->num
);
196 card
= sdio_get_drvdata(func
);
200 adapter
= card
->adapter
;
201 if (!adapter
|| !adapter
->priv_num
)
205 if (adapter
->is_suspended
)
206 mwifiex_sdio_resume(adapter
->dev
);
208 mwifiex_deauthenticate_all(adapter
);
210 priv
= mwifiex_get_priv(adapter
, MWIFIEX_BSS_ROLE_ANY
);
211 mwifiex_disable_auto_ds(priv
);
212 mwifiex_init_shutdown_fw(priv
, MWIFIEX_FUNC_SHUTDOWN
);
215 mwifiex_remove_card(card
->adapter
, &add_remove_card_sem
);
221 * Kernel needs to suspend all functions separately. Therefore all
222 * registered functions must have drivers with suspend and resume
223 * methods. Failing that the kernel simply removes the whole card.
225 * If already not suspended, this function allocates and sends a host
226 * sleep activate request to the firmware and turns off the traffic.
228 static int mwifiex_sdio_suspend(struct device
*dev
)
230 struct sdio_func
*func
= dev_to_sdio_func(dev
);
231 struct sdio_mmc_card
*card
;
232 struct mwifiex_adapter
*adapter
;
233 mmc_pm_flag_t pm_flag
= 0;
237 pm_flag
= sdio_get_host_pm_caps(func
);
238 pr_debug("cmd: %s: suspend: PM flag = 0x%x\n",
239 sdio_func_id(func
), pm_flag
);
240 if (!(pm_flag
& MMC_PM_KEEP_POWER
)) {
241 pr_err("%s: cannot remain alive while host is"
242 " suspended\n", sdio_func_id(func
));
246 card
= sdio_get_drvdata(func
);
247 if (!card
|| !card
->adapter
) {
248 pr_err("suspend: invalid card or adapter\n");
252 pr_err("suspend: sdio_func is not specified\n");
256 adapter
= card
->adapter
;
258 /* Enable the Host Sleep */
259 if (!mwifiex_enable_hs(adapter
)) {
260 dev_err(adapter
->dev
, "cmd: failed to suspend\n");
261 adapter
->hs_enabling
= false;
265 dev_dbg(adapter
->dev
, "cmd: suspend with MMC_PM_KEEP_POWER\n");
266 ret
= sdio_set_host_pm_flags(func
, MMC_PM_KEEP_POWER
);
268 /* Indicate device suspended */
269 adapter
->is_suspended
= true;
270 adapter
->hs_enabling
= false;
275 /* Device ID for SD8786 */
276 #define SDIO_DEVICE_ID_MARVELL_8786 (0x9116)
277 /* Device ID for SD8787 */
278 #define SDIO_DEVICE_ID_MARVELL_8787 (0x9119)
279 /* Device ID for SD8797 */
280 #define SDIO_DEVICE_ID_MARVELL_8797 (0x9129)
281 /* Device ID for SD8897 */
282 #define SDIO_DEVICE_ID_MARVELL_8897 (0x912d)
283 /* Device ID for SD8887 */
284 #define SDIO_DEVICE_ID_MARVELL_8887 (0x9135)
285 /* Device ID for SD8801 */
286 #define SDIO_DEVICE_ID_MARVELL_8801 (0x9139)
290 static const struct sdio_device_id mwifiex_ids
[] = {
291 {SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL
, SDIO_DEVICE_ID_MARVELL_8786
),
292 .driver_data
= (unsigned long) &mwifiex_sdio_sd8786
},
293 {SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL
, SDIO_DEVICE_ID_MARVELL_8787
),
294 .driver_data
= (unsigned long) &mwifiex_sdio_sd8787
},
295 {SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL
, SDIO_DEVICE_ID_MARVELL_8797
),
296 .driver_data
= (unsigned long) &mwifiex_sdio_sd8797
},
297 {SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL
, SDIO_DEVICE_ID_MARVELL_8897
),
298 .driver_data
= (unsigned long) &mwifiex_sdio_sd8897
},
299 {SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL
, SDIO_DEVICE_ID_MARVELL_8887
),
300 .driver_data
= (unsigned long)&mwifiex_sdio_sd8887
},
301 {SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL
, SDIO_DEVICE_ID_MARVELL_8801
),
302 .driver_data
= (unsigned long)&mwifiex_sdio_sd8801
},
306 MODULE_DEVICE_TABLE(sdio
, mwifiex_ids
);
308 static const struct dev_pm_ops mwifiex_sdio_pm_ops
= {
309 .suspend
= mwifiex_sdio_suspend
,
310 .resume
= mwifiex_sdio_resume
,
313 static struct sdio_driver mwifiex_sdio
= {
314 .name
= "mwifiex_sdio",
315 .id_table
= mwifiex_ids
,
316 .probe
= mwifiex_sdio_probe
,
317 .remove
= mwifiex_sdio_remove
,
319 .owner
= THIS_MODULE
,
320 .pm
= &mwifiex_sdio_pm_ops
,
324 /* Write data into SDIO card register. Caller claims SDIO device. */
326 mwifiex_write_reg_locked(struct sdio_func
*func
, u32 reg
, u8 data
)
329 sdio_writeb(func
, data
, reg
, &ret
);
334 * This function writes data into SDIO card register.
337 mwifiex_write_reg(struct mwifiex_adapter
*adapter
, u32 reg
, u8 data
)
339 struct sdio_mmc_card
*card
= adapter
->card
;
342 sdio_claim_host(card
->func
);
343 ret
= mwifiex_write_reg_locked(card
->func
, reg
, data
);
344 sdio_release_host(card
->func
);
350 * This function reads data from SDIO card register.
353 mwifiex_read_reg(struct mwifiex_adapter
*adapter
, u32 reg
, u8
*data
)
355 struct sdio_mmc_card
*card
= adapter
->card
;
359 sdio_claim_host(card
->func
);
360 val
= sdio_readb(card
->func
, reg
, &ret
);
361 sdio_release_host(card
->func
);
369 * This function writes multiple data into SDIO card memory.
371 * This does not work in suspended mode.
374 mwifiex_write_data_sync(struct mwifiex_adapter
*adapter
,
375 u8
*buffer
, u32 pkt_len
, u32 port
)
377 struct sdio_mmc_card
*card
= adapter
->card
;
380 (port
& MWIFIEX_SDIO_BYTE_MODE_MASK
) ? BYTE_MODE
: BLOCK_MODE
;
381 u32 blk_size
= (blk_mode
== BLOCK_MODE
) ? MWIFIEX_SDIO_BLOCK_SIZE
: 1;
384 BLOCK_MODE
) ? (pkt_len
/
385 MWIFIEX_SDIO_BLOCK_SIZE
) : pkt_len
;
386 u32 ioport
= (port
& MWIFIEX_SDIO_IO_PORT_MASK
);
388 if (adapter
->is_suspended
) {
389 dev_err(adapter
->dev
,
390 "%s: not allowed while suspended\n", __func__
);
394 sdio_claim_host(card
->func
);
396 ret
= sdio_writesb(card
->func
, ioport
, buffer
, blk_cnt
* blk_size
);
398 sdio_release_host(card
->func
);
404 * This function reads multiple data from SDIO card memory.
406 static int mwifiex_read_data_sync(struct mwifiex_adapter
*adapter
, u8
*buffer
,
407 u32 len
, u32 port
, u8 claim
)
409 struct sdio_mmc_card
*card
= adapter
->card
;
411 u8 blk_mode
= (port
& MWIFIEX_SDIO_BYTE_MODE_MASK
) ? BYTE_MODE
413 u32 blk_size
= (blk_mode
== BLOCK_MODE
) ? MWIFIEX_SDIO_BLOCK_SIZE
: 1;
414 u32 blk_cnt
= (blk_mode
== BLOCK_MODE
) ? (len
/ MWIFIEX_SDIO_BLOCK_SIZE
)
416 u32 ioport
= (port
& MWIFIEX_SDIO_IO_PORT_MASK
);
419 sdio_claim_host(card
->func
);
421 ret
= sdio_readsb(card
->func
, buffer
, ioport
, blk_cnt
* blk_size
);
424 sdio_release_host(card
->func
);
430 * This function wakes up the card.
432 * A host power up command is written to the card configuration
433 * register to wake up the card.
435 static int mwifiex_pm_wakeup_card(struct mwifiex_adapter
*adapter
)
437 dev_dbg(adapter
->dev
, "event: wakeup device...\n");
439 return mwifiex_write_reg(adapter
, CONFIGURATION_REG
, HOST_POWER_UP
);
443 * This function is called after the card has woken up.
445 * The card configuration register is reset.
447 static int mwifiex_pm_wakeup_card_complete(struct mwifiex_adapter
*adapter
)
449 dev_dbg(adapter
->dev
, "cmd: wakeup device completed\n");
451 return mwifiex_write_reg(adapter
, CONFIGURATION_REG
, 0);
455 * This function is used to initialize IO ports for the
456 * chipsets supporting SDIO new mode eg SD8897.
458 static int mwifiex_init_sdio_new_mode(struct mwifiex_adapter
*adapter
)
461 struct sdio_mmc_card
*card
= adapter
->card
;
463 adapter
->ioport
= MEM_PORT
;
465 /* enable sdio new mode */
466 if (mwifiex_read_reg(adapter
, card
->reg
->card_cfg_2_1_reg
, ®
))
468 if (mwifiex_write_reg(adapter
, card
->reg
->card_cfg_2_1_reg
,
469 reg
| CMD53_NEW_MODE
))
472 /* Configure cmd port and enable reading rx length from the register */
473 if (mwifiex_read_reg(adapter
, card
->reg
->cmd_cfg_0
, ®
))
475 if (mwifiex_write_reg(adapter
, card
->reg
->cmd_cfg_0
,
476 reg
| CMD_PORT_RD_LEN_EN
))
479 /* Enable Dnld/Upld ready auto reset for cmd port after cmd53 is
482 if (mwifiex_read_reg(adapter
, card
->reg
->cmd_cfg_1
, ®
))
484 if (mwifiex_write_reg(adapter
, card
->reg
->cmd_cfg_1
,
485 reg
| CMD_PORT_AUTO_EN
))
491 /* This function initializes the IO ports.
493 * The following operations are performed -
494 * - Read the IO ports (0, 1 and 2)
495 * - Set host interrupt Reset-To-Read to clear
496 * - Set auto re-enable interrupt
498 static int mwifiex_init_sdio_ioport(struct mwifiex_adapter
*adapter
)
501 struct sdio_mmc_card
*card
= adapter
->card
;
505 if (card
->supports_sdio_new_mode
) {
506 if (mwifiex_init_sdio_new_mode(adapter
))
511 /* Read the IO port */
512 if (!mwifiex_read_reg(adapter
, card
->reg
->io_port_0_reg
, ®
))
513 adapter
->ioport
|= (reg
& 0xff);
517 if (!mwifiex_read_reg(adapter
, card
->reg
->io_port_1_reg
, ®
))
518 adapter
->ioport
|= ((reg
& 0xff) << 8);
522 if (!mwifiex_read_reg(adapter
, card
->reg
->io_port_2_reg
, ®
))
523 adapter
->ioport
|= ((reg
& 0xff) << 16);
527 pr_debug("info: SDIO FUNC1 IO port: %#x\n", adapter
->ioport
);
529 /* Set Host interrupt reset to read to clear */
530 if (!mwifiex_read_reg(adapter
, card
->reg
->host_int_rsr_reg
, ®
))
531 mwifiex_write_reg(adapter
, card
->reg
->host_int_rsr_reg
,
532 reg
| card
->reg
->sdio_int_mask
);
536 /* Dnld/Upld ready set to auto reset */
537 if (!mwifiex_read_reg(adapter
, card
->reg
->card_misc_cfg_reg
, ®
))
538 mwifiex_write_reg(adapter
, card
->reg
->card_misc_cfg_reg
,
539 reg
| AUTO_RE_ENABLE_INT
);
547 * This function sends data to the card.
549 static int mwifiex_write_data_to_card(struct mwifiex_adapter
*adapter
,
550 u8
*payload
, u32 pkt_len
, u32 port
)
556 ret
= mwifiex_write_data_sync(adapter
, payload
, pkt_len
, port
);
559 dev_err(adapter
->dev
, "host_to_card, write iomem"
560 " (%d) failed: %d\n", i
, ret
);
561 if (mwifiex_write_reg(adapter
, CONFIGURATION_REG
, 0x04))
562 dev_err(adapter
->dev
, "write CFG reg failed\n");
565 if (i
> MAX_WRITE_IOMEM_RETRY
)
574 * This function gets the read port.
576 * If control port bit is set in MP read bitmap, the control port
577 * is returned, otherwise the current read port is returned and
578 * the value is increased (provided it does not reach the maximum
579 * limit, in which case it is reset to 1)
581 static int mwifiex_get_rd_port(struct mwifiex_adapter
*adapter
, u8
*port
)
583 struct sdio_mmc_card
*card
= adapter
->card
;
584 const struct mwifiex_sdio_card_reg
*reg
= card
->reg
;
585 u32 rd_bitmap
= card
->mp_rd_bitmap
;
587 dev_dbg(adapter
->dev
, "data: mp_rd_bitmap=0x%08x\n", rd_bitmap
);
589 if (card
->supports_sdio_new_mode
) {
590 if (!(rd_bitmap
& reg
->data_port_mask
))
593 if (!(rd_bitmap
& (CTRL_PORT_MASK
| reg
->data_port_mask
)))
597 if ((card
->has_control_mask
) &&
598 (card
->mp_rd_bitmap
& CTRL_PORT_MASK
)) {
599 card
->mp_rd_bitmap
&= (u32
) (~CTRL_PORT_MASK
);
601 dev_dbg(adapter
->dev
, "data: port=%d mp_rd_bitmap=0x%08x\n",
602 *port
, card
->mp_rd_bitmap
);
606 if (!(card
->mp_rd_bitmap
& (1 << card
->curr_rd_port
)))
609 /* We are now handling the SDIO data ports */
610 card
->mp_rd_bitmap
&= (u32
)(~(1 << card
->curr_rd_port
));
611 *port
= card
->curr_rd_port
;
613 if (++card
->curr_rd_port
== card
->max_ports
)
614 card
->curr_rd_port
= reg
->start_rd_port
;
616 dev_dbg(adapter
->dev
,
617 "data: port=%d mp_rd_bitmap=0x%08x -> 0x%08x\n",
618 *port
, rd_bitmap
, card
->mp_rd_bitmap
);
624 * This function gets the write port for data.
626 * The current write port is returned if available and the value is
627 * increased (provided it does not reach the maximum limit, in which
628 * case it is reset to 1)
630 static int mwifiex_get_wr_port_data(struct mwifiex_adapter
*adapter
, u32
*port
)
632 struct sdio_mmc_card
*card
= adapter
->card
;
633 const struct mwifiex_sdio_card_reg
*reg
= card
->reg
;
634 u32 wr_bitmap
= card
->mp_wr_bitmap
;
636 dev_dbg(adapter
->dev
, "data: mp_wr_bitmap=0x%08x\n", wr_bitmap
);
638 if (!(wr_bitmap
& card
->mp_data_port_mask
)) {
639 adapter
->data_sent
= true;
643 if (card
->mp_wr_bitmap
& (1 << card
->curr_wr_port
)) {
644 card
->mp_wr_bitmap
&= (u32
) (~(1 << card
->curr_wr_port
));
645 *port
= card
->curr_wr_port
;
646 if (++card
->curr_wr_port
== card
->mp_end_port
)
647 card
->curr_wr_port
= reg
->start_wr_port
;
649 adapter
->data_sent
= true;
653 if ((card
->has_control_mask
) && (*port
== CTRL_PORT
)) {
654 dev_err(adapter
->dev
,
655 "invalid data port=%d cur port=%d mp_wr_bitmap=0x%08x -> 0x%08x\n",
656 *port
, card
->curr_wr_port
, wr_bitmap
,
661 dev_dbg(adapter
->dev
, "data: port=%d mp_wr_bitmap=0x%08x -> 0x%08x\n",
662 *port
, wr_bitmap
, card
->mp_wr_bitmap
);
668 * This function polls the card status.
671 mwifiex_sdio_poll_card_status(struct mwifiex_adapter
*adapter
, u8 bits
)
673 struct sdio_mmc_card
*card
= adapter
->card
;
677 for (tries
= 0; tries
< MAX_POLL_TRIES
; tries
++) {
678 if (mwifiex_read_reg(adapter
, card
->reg
->poll_reg
, &cs
))
680 else if ((cs
& bits
) == bits
)
683 usleep_range(10, 20);
686 dev_err(adapter
->dev
, "poll card status failed, tries = %d\n", tries
);
692 * This function reads the firmware status.
695 mwifiex_sdio_read_fw_status(struct mwifiex_adapter
*adapter
, u16
*dat
)
697 struct sdio_mmc_card
*card
= adapter
->card
;
698 const struct mwifiex_sdio_card_reg
*reg
= card
->reg
;
701 if (mwifiex_read_reg(adapter
, reg
->status_reg_0
, &fws0
))
704 if (mwifiex_read_reg(adapter
, reg
->status_reg_1
, &fws1
))
707 *dat
= (u16
) ((fws1
<< 8) | fws0
);
713 * This function disables the host interrupt.
715 * The host interrupt mask is read, the disable bit is reset and
716 * written back to the card host interrupt mask register.
718 static void mwifiex_sdio_disable_host_int(struct mwifiex_adapter
*adapter
)
720 struct sdio_mmc_card
*card
= adapter
->card
;
721 struct sdio_func
*func
= card
->func
;
723 sdio_claim_host(func
);
724 mwifiex_write_reg_locked(func
, card
->reg
->host_int_mask_reg
, 0);
725 sdio_release_irq(func
);
726 sdio_release_host(func
);
730 * This function reads the interrupt status from card.
732 static void mwifiex_interrupt_status(struct mwifiex_adapter
*adapter
)
734 struct sdio_mmc_card
*card
= adapter
->card
;
738 if (mwifiex_read_data_sync(adapter
, card
->mp_regs
,
739 card
->reg
->max_mp_regs
,
740 REG_PORT
| MWIFIEX_SDIO_BYTE_MODE_MASK
, 0)) {
741 dev_err(adapter
->dev
, "read mp_regs failed\n");
745 sdio_ireg
= card
->mp_regs
[card
->reg
->host_int_status_reg
];
748 * DN_LD_HOST_INT_STATUS and/or UP_LD_HOST_INT_STATUS
749 * For SDIO new mode CMD port interrupts
750 * DN_LD_CMD_PORT_HOST_INT_STATUS and/or
751 * UP_LD_CMD_PORT_HOST_INT_STATUS
752 * Clear the interrupt status register
754 dev_dbg(adapter
->dev
, "int: sdio_ireg = %#x\n", sdio_ireg
);
755 spin_lock_irqsave(&adapter
->int_lock
, flags
);
756 adapter
->int_status
|= sdio_ireg
;
757 spin_unlock_irqrestore(&adapter
->int_lock
, flags
);
762 * SDIO interrupt handler.
764 * This function reads the interrupt status from firmware and handles
765 * the interrupt in current thread (ksdioirqd) right away.
768 mwifiex_sdio_interrupt(struct sdio_func
*func
)
770 struct mwifiex_adapter
*adapter
;
771 struct sdio_mmc_card
*card
;
773 card
= sdio_get_drvdata(func
);
774 if (!card
|| !card
->adapter
) {
775 pr_debug("int: func=%p card=%p adapter=%p\n",
776 func
, card
, card
? card
->adapter
: NULL
);
779 adapter
= card
->adapter
;
781 if (!adapter
->pps_uapsd_mode
&& adapter
->ps_state
== PS_STATE_SLEEP
)
782 adapter
->ps_state
= PS_STATE_AWAKE
;
784 mwifiex_interrupt_status(adapter
);
785 mwifiex_main_process(adapter
);
789 * This function enables the host interrupt.
791 * The host interrupt enable mask is written to the card
792 * host interrupt mask register.
794 static int mwifiex_sdio_enable_host_int(struct mwifiex_adapter
*adapter
)
796 struct sdio_mmc_card
*card
= adapter
->card
;
797 struct sdio_func
*func
= card
->func
;
800 sdio_claim_host(func
);
802 /* Request the SDIO IRQ */
803 ret
= sdio_claim_irq(func
, mwifiex_sdio_interrupt
);
805 dev_err(adapter
->dev
, "claim irq failed: ret=%d\n", ret
);
809 /* Simply write the mask to the register */
810 ret
= mwifiex_write_reg_locked(func
, card
->reg
->host_int_mask_reg
,
811 card
->reg
->host_int_enable
);
813 dev_err(adapter
->dev
, "enable host interrupt failed\n");
814 sdio_release_irq(func
);
818 sdio_release_host(func
);
823 * This function sends a data buffer to the card.
825 static int mwifiex_sdio_card_to_host(struct mwifiex_adapter
*adapter
,
826 u32
*type
, u8
*buffer
,
827 u32 npayload
, u32 ioport
)
833 dev_err(adapter
->dev
, "%s: buffer is NULL\n", __func__
);
837 ret
= mwifiex_read_data_sync(adapter
, buffer
, npayload
, ioport
, 1);
840 dev_err(adapter
->dev
, "%s: read iomem failed: %d\n", __func__
,
845 nb
= le16_to_cpu(*(__le16
*) (buffer
));
847 dev_err(adapter
->dev
, "%s: invalid packet, nb=%d npayload=%d\n",
848 __func__
, nb
, npayload
);
852 *type
= le16_to_cpu(*(__le16
*) (buffer
+ 2));
858 * This function downloads the firmware to the card.
860 * Firmware is downloaded to the card in blocks. Every block download
861 * is tested for CRC errors, and retried a number of times before
864 static int mwifiex_prog_fw_w_helper(struct mwifiex_adapter
*adapter
,
865 struct mwifiex_fw_image
*fw
)
867 struct sdio_mmc_card
*card
= adapter
->card
;
868 const struct mwifiex_sdio_card_reg
*reg
= card
->reg
;
870 u8
*firmware
= fw
->fw_buf
;
871 u32 firmware_len
= fw
->fw_len
;
876 u32 txlen
, tx_blocks
= 0, tries
;
880 dev_err(adapter
->dev
,
881 "firmware image not found! Terminating download\n");
885 dev_dbg(adapter
->dev
, "info: downloading FW image (%d bytes)\n",
888 /* Assume that the allocated buffer is 8-byte aligned */
889 fwbuf
= kzalloc(MWIFIEX_UPLD_SIZE
, GFP_KERNEL
);
893 /* Perform firmware data transfer */
895 /* The host polls for the DN_LD_CARD_RDY and CARD_IO_READY
897 ret
= mwifiex_sdio_poll_card_status(adapter
, CARD_IO_READY
|
900 dev_err(adapter
->dev
, "FW download with helper:"
901 " poll status timeout @ %d\n", offset
);
906 if (offset
>= firmware_len
)
909 for (tries
= 0; tries
< MAX_POLL_TRIES
; tries
++) {
910 ret
= mwifiex_read_reg(adapter
, reg
->base_0_reg
,
913 dev_err(adapter
->dev
,
914 "dev BASE0 register read failed: "
915 "base0=%#04X(%d). Terminating dnld\n",
919 ret
= mwifiex_read_reg(adapter
, reg
->base_1_reg
,
922 dev_err(adapter
->dev
,
923 "dev BASE1 register read failed: "
924 "base1=%#04X(%d). Terminating dnld\n",
928 len
= (u16
) (((base1
& 0xff) << 8) | (base0
& 0xff));
933 usleep_range(10, 20);
938 } else if (len
> MWIFIEX_UPLD_SIZE
) {
939 dev_err(adapter
->dev
,
940 "FW dnld failed @ %d, invalid length %d\n",
950 if (i
> MAX_WRITE_IOMEM_RETRY
) {
951 dev_err(adapter
->dev
,
952 "FW dnld failed @ %d, over max retry\n",
957 dev_err(adapter
->dev
, "CRC indicated by the helper:"
958 " len = 0x%04X, txlen = %d\n", len
, txlen
);
960 /* Setting this to 0 to resend from same offset */
965 /* Set blocksize to transfer - checking for last
967 if (firmware_len
- offset
< txlen
)
968 txlen
= firmware_len
- offset
;
970 tx_blocks
= (txlen
+ MWIFIEX_SDIO_BLOCK_SIZE
- 1)
971 / MWIFIEX_SDIO_BLOCK_SIZE
;
973 /* Copy payload to buffer */
974 memmove(fwbuf
, &firmware
[offset
], txlen
);
977 ret
= mwifiex_write_data_sync(adapter
, fwbuf
, tx_blocks
*
978 MWIFIEX_SDIO_BLOCK_SIZE
,
981 dev_err(adapter
->dev
,
982 "FW download, write iomem (%d) failed @ %d\n",
984 if (mwifiex_write_reg(adapter
, CONFIGURATION_REG
, 0x04))
985 dev_err(adapter
->dev
, "write CFG reg failed\n");
994 dev_notice(adapter
->dev
,
995 "info: FW download over, size %d bytes\n", offset
);
1004 * This function checks the firmware status in card.
1006 * The winner interface is also determined by this function.
1008 static int mwifiex_check_fw_status(struct mwifiex_adapter
*adapter
,
1011 struct sdio_mmc_card
*card
= adapter
->card
;
1017 /* Wait for firmware initialization event */
1018 for (tries
= 0; tries
< poll_num
; tries
++) {
1019 ret
= mwifiex_sdio_read_fw_status(adapter
, &firmware_stat
);
1022 if (firmware_stat
== FIRMWARE_READY_SDIO
) {
1032 if (mwifiex_read_reg
1033 (adapter
, card
->reg
->status_reg_0
, &winner_status
))
1037 adapter
->winner
= 0;
1039 adapter
->winner
= 1;
1045 * This function decode sdio aggreation pkt.
1047 * Based on the the data block size and pkt_len,
1048 * skb data will be decoded to few packets.
1050 static void mwifiex_deaggr_sdio_pkt(struct mwifiex_adapter
*adapter
,
1051 struct sk_buff
*skb
)
1053 u32 total_pkt_len
, pkt_len
;
1054 struct sk_buff
*skb_deaggr
;
1061 total_pkt_len
= skb
->len
;
1063 while (total_pkt_len
>= (SDIO_HEADER_OFFSET
+ INTF_HEADER_LEN
)) {
1064 if (total_pkt_len
< adapter
->sdio_rx_block_size
)
1066 blk_num
= *(data
+ BLOCK_NUMBER_OFFSET
);
1067 blk_size
= adapter
->sdio_rx_block_size
* blk_num
;
1068 if (blk_size
> total_pkt_len
) {
1069 dev_err(adapter
->dev
, "%s: error in pkt,\t"
1070 "blk_num=%d, blk_size=%d, total_pkt_len=%d\n",
1071 __func__
, blk_num
, blk_size
, total_pkt_len
);
1074 pkt_len
= le16_to_cpu(*(__le16
*)(data
+ SDIO_HEADER_OFFSET
));
1075 pkt_type
= le16_to_cpu(*(__le16
*)(data
+ SDIO_HEADER_OFFSET
+
1077 if ((pkt_len
+ SDIO_HEADER_OFFSET
) > blk_size
) {
1078 dev_err(adapter
->dev
, "%s: error in pkt,\t"
1079 "pkt_len=%d, blk_size=%d\n",
1080 __func__
, pkt_len
, blk_size
);
1083 skb_deaggr
= mwifiex_alloc_dma_align_buf(pkt_len
,
1084 GFP_KERNEL
| GFP_DMA
);
1087 skb_put(skb_deaggr
, pkt_len
);
1088 memcpy(skb_deaggr
->data
, data
+ SDIO_HEADER_OFFSET
, pkt_len
);
1089 skb_pull(skb_deaggr
, INTF_HEADER_LEN
);
1091 mwifiex_handle_rx_packet(adapter
, skb_deaggr
);
1093 total_pkt_len
-= blk_size
;
1098 * This function decodes a received packet.
1100 * Based on the type, the packet is treated as either a data, or
1101 * a command response, or an event, and the correct handler
1102 * function is invoked.
1104 static int mwifiex_decode_rx_packet(struct mwifiex_adapter
*adapter
,
1105 struct sk_buff
*skb
, u32 upld_typ
)
1108 __le16
*curr_ptr
= (__le16
*)skb
->data
;
1109 u16 pkt_len
= le16_to_cpu(*curr_ptr
);
1110 struct mwifiex_rxinfo
*rx_info
;
1112 if (upld_typ
!= MWIFIEX_TYPE_AGGR_DATA
) {
1113 skb_trim(skb
, pkt_len
);
1114 skb_pull(skb
, INTF_HEADER_LEN
);
1118 case MWIFIEX_TYPE_AGGR_DATA
:
1119 dev_dbg(adapter
->dev
, "info: --- Rx: Aggr Data packet ---\n");
1120 rx_info
= MWIFIEX_SKB_RXCB(skb
);
1121 rx_info
->buf_type
= MWIFIEX_TYPE_AGGR_DATA
;
1122 if (adapter
->rx_work_enabled
) {
1123 skb_queue_tail(&adapter
->rx_data_q
, skb
);
1124 atomic_inc(&adapter
->rx_pending
);
1125 adapter
->data_received
= true;
1127 mwifiex_deaggr_sdio_pkt(adapter
, skb
);
1128 dev_kfree_skb_any(skb
);
1132 case MWIFIEX_TYPE_DATA
:
1133 dev_dbg(adapter
->dev
, "info: --- Rx: Data packet ---\n");
1134 if (adapter
->rx_work_enabled
) {
1135 skb_queue_tail(&adapter
->rx_data_q
, skb
);
1136 adapter
->data_received
= true;
1137 atomic_inc(&adapter
->rx_pending
);
1139 mwifiex_handle_rx_packet(adapter
, skb
);
1143 case MWIFIEX_TYPE_CMD
:
1144 dev_dbg(adapter
->dev
, "info: --- Rx: Cmd Response ---\n");
1145 /* take care of curr_cmd = NULL case */
1146 if (!adapter
->curr_cmd
) {
1147 cmd_buf
= adapter
->upld_buf
;
1149 if (adapter
->ps_state
== PS_STATE_SLEEP_CFM
)
1150 mwifiex_process_sleep_confirm_resp(adapter
,
1154 memcpy(cmd_buf
, skb
->data
,
1155 min_t(u32
, MWIFIEX_SIZE_OF_CMD_BUFFER
,
1158 dev_kfree_skb_any(skb
);
1160 adapter
->cmd_resp_received
= true;
1161 adapter
->curr_cmd
->resp_skb
= skb
;
1165 case MWIFIEX_TYPE_EVENT
:
1166 dev_dbg(adapter
->dev
, "info: --- Rx: Event ---\n");
1167 adapter
->event_cause
= le32_to_cpu(*(__le32
*) skb
->data
);
1169 if ((skb
->len
> 0) && (skb
->len
< MAX_EVENT_SIZE
))
1170 memcpy(adapter
->event_body
,
1171 skb
->data
+ MWIFIEX_EVENT_HEADER_LEN
,
1174 /* event cause has been saved to adapter->event_cause */
1175 adapter
->event_received
= true;
1176 adapter
->event_skb
= skb
;
1181 dev_err(adapter
->dev
, "unknown upload type %#x\n", upld_typ
);
1182 dev_kfree_skb_any(skb
);
1190 * This function transfers received packets from card to driver, performing
1191 * aggregation if required.
1193 * For data received on control port, or if aggregation is disabled, the
1194 * received buffers are uploaded as separate packets. However, if aggregation
1195 * is enabled and required, the buffers are copied onto an aggregation buffer,
1196 * provided there is space left, processed and finally uploaded.
1198 static int mwifiex_sdio_card_to_host_mp_aggr(struct mwifiex_adapter
*adapter
,
1199 u16 rx_len
, u8 port
)
1201 struct sdio_mmc_card
*card
= adapter
->card
;
1202 s32 f_do_rx_aggr
= 0;
1203 s32 f_do_rx_cur
= 0;
1205 s32 f_post_aggr_cur
= 0;
1206 struct sk_buff
*skb_deaggr
;
1207 struct sk_buff
*skb
= NULL
;
1208 u32 pkt_len
, pkt_type
, mport
, pind
;
1211 if ((card
->has_control_mask
) && (port
== CTRL_PORT
)) {
1212 /* Read the command Resp without aggr */
1213 dev_dbg(adapter
->dev
, "info: %s: no aggregation for cmd "
1214 "response\n", __func__
);
1217 goto rx_curr_single
;
1220 if (!card
->mpa_rx
.enabled
) {
1221 dev_dbg(adapter
->dev
, "info: %s: rx aggregation disabled\n",
1225 goto rx_curr_single
;
1228 if ((!card
->has_control_mask
&& (card
->mp_rd_bitmap
&
1229 card
->reg
->data_port_mask
)) ||
1230 (card
->has_control_mask
&& (card
->mp_rd_bitmap
&
1231 (~((u32
) CTRL_PORT_MASK
))))) {
1232 /* Some more data RX pending */
1233 dev_dbg(adapter
->dev
, "info: %s: not last packet\n", __func__
);
1235 if (MP_RX_AGGR_IN_PROGRESS(card
)) {
1236 if (MP_RX_AGGR_BUF_HAS_ROOM(card
, rx_len
)) {
1239 /* No room in Aggr buf, do rx aggr now */
1241 f_post_aggr_cur
= 1;
1244 /* Rx aggr not in progress */
1249 /* No more data RX pending */
1250 dev_dbg(adapter
->dev
, "info: %s: last packet\n", __func__
);
1252 if (MP_RX_AGGR_IN_PROGRESS(card
)) {
1254 if (MP_RX_AGGR_BUF_HAS_ROOM(card
, rx_len
))
1257 /* No room in Aggr buf, do rx aggr now */
1265 dev_dbg(adapter
->dev
, "info: current packet aggregation\n");
1266 /* Curr pkt can be aggregated */
1267 mp_rx_aggr_setup(card
, rx_len
, port
);
1269 if (MP_RX_AGGR_PKT_LIMIT_REACHED(card
) ||
1270 mp_rx_aggr_port_limit_reached(card
)) {
1271 dev_dbg(adapter
->dev
, "info: %s: aggregated packet "
1272 "limit reached\n", __func__
);
1273 /* No more pkts allowed in Aggr buf, rx it */
1279 /* do aggr RX now */
1280 dev_dbg(adapter
->dev
, "info: do_rx_aggr: num of packets: %d\n",
1281 card
->mpa_rx
.pkt_cnt
);
1283 if (card
->supports_sdio_new_mode
) {
1287 for (i
= 0, port_count
= 0; i
< card
->max_ports
; i
++)
1288 if (card
->mpa_rx
.ports
& BIT(i
))
1291 /* Reading data from "start_port + 0" to "start_port +
1292 * port_count -1", so decrease the count by 1
1295 mport
= (adapter
->ioport
| SDIO_MPA_ADDR_BASE
|
1296 (port_count
<< 8)) + card
->mpa_rx
.start_port
;
1298 mport
= (adapter
->ioport
| SDIO_MPA_ADDR_BASE
|
1299 (card
->mpa_rx
.ports
<< 4)) +
1300 card
->mpa_rx
.start_port
;
1303 if (mwifiex_read_data_sync(adapter
, card
->mpa_rx
.buf
,
1304 card
->mpa_rx
.buf_len
, mport
, 1))
1307 curr_ptr
= card
->mpa_rx
.buf
;
1309 for (pind
= 0; pind
< card
->mpa_rx
.pkt_cnt
; pind
++) {
1310 u32
*len_arr
= card
->mpa_rx
.len_arr
;
1312 /* get curr PKT len & type */
1313 pkt_len
= le16_to_cpu(*(__le16
*) &curr_ptr
[0]);
1314 pkt_type
= le16_to_cpu(*(__le16
*) &curr_ptr
[2]);
1316 /* copy pkt to deaggr buf */
1317 skb_deaggr
= mwifiex_alloc_dma_align_buf(len_arr
[pind
],
1321 dev_err(adapter
->dev
, "skb allocation failure drop pkt len=%d type=%d\n",
1323 curr_ptr
+= len_arr
[pind
];
1327 skb_put(skb_deaggr
, len_arr
[pind
]);
1329 if ((pkt_type
== MWIFIEX_TYPE_DATA
||
1330 (pkt_type
== MWIFIEX_TYPE_AGGR_DATA
&&
1331 adapter
->sdio_rx_aggr_enable
)) &&
1332 (pkt_len
<= len_arr
[pind
])) {
1334 memcpy(skb_deaggr
->data
, curr_ptr
, pkt_len
);
1336 skb_trim(skb_deaggr
, pkt_len
);
1338 /* Process de-aggr packet */
1339 mwifiex_decode_rx_packet(adapter
, skb_deaggr
,
1342 dev_err(adapter
->dev
, " drop wrong aggr pkt:\t"
1343 "sdio_single_port_rx_aggr=%d\t"
1344 "type=%d len=%d max_len=%d\n",
1345 adapter
->sdio_rx_aggr_enable
,
1348 dev_kfree_skb_any(skb_deaggr
);
1350 curr_ptr
+= len_arr
[pind
];
1352 MP_RX_AGGR_BUF_RESET(card
);
1357 dev_dbg(adapter
->dev
, "info: RX: port: %d, rx_len: %d\n",
1360 skb
= mwifiex_alloc_dma_align_buf(rx_len
, GFP_KERNEL
| GFP_DMA
);
1362 dev_err(adapter
->dev
, "single skb allocated fail,\t"
1363 "drop pkt port=%d len=%d\n", port
, rx_len
);
1364 if (mwifiex_sdio_card_to_host(adapter
, &pkt_type
,
1365 card
->mpa_rx
.buf
, rx_len
,
1366 adapter
->ioport
+ port
))
1371 skb_put(skb
, rx_len
);
1373 if (mwifiex_sdio_card_to_host(adapter
, &pkt_type
,
1374 skb
->data
, skb
->len
,
1375 adapter
->ioport
+ port
))
1377 if (!adapter
->sdio_rx_aggr_enable
&&
1378 pkt_type
== MWIFIEX_TYPE_AGGR_DATA
) {
1379 dev_err(adapter
->dev
, "drop wrong pkt type %d\t"
1380 "current SDIO RX Aggr not enabled\n",
1382 dev_kfree_skb_any(skb
);
1386 mwifiex_decode_rx_packet(adapter
, skb
, pkt_type
);
1388 if (f_post_aggr_cur
) {
1389 dev_dbg(adapter
->dev
, "info: current packet aggregation\n");
1390 /* Curr pkt can be aggregated */
1391 mp_rx_aggr_setup(card
, rx_len
, port
);
1396 if (MP_RX_AGGR_IN_PROGRESS(card
))
1397 MP_RX_AGGR_BUF_RESET(card
);
1399 if (f_do_rx_cur
&& skb
)
1400 /* Single transfer pending. Free curr buff also */
1401 dev_kfree_skb_any(skb
);
1407 * This function checks the current interrupt status.
1409 * The following interrupts are checked and handled by this function -
1412 * - Packets received
1414 * Since the firmware does not generate download ready interrupt if the
1415 * port updated is command port only, command sent interrupt checking
1416 * should be done manually, and for every SDIO interrupt.
1418 * In case of Rx packets received, the packets are uploaded from card to
1419 * host and processed accordingly.
1421 static int mwifiex_process_int_status(struct mwifiex_adapter
*adapter
)
1423 struct sdio_mmc_card
*card
= adapter
->card
;
1424 const struct mwifiex_sdio_card_reg
*reg
= card
->reg
;
1427 struct sk_buff
*skb
;
1428 u8 port
= CTRL_PORT
;
1429 u32 len_reg_l
, len_reg_u
;
1432 unsigned long flags
;
1436 spin_lock_irqsave(&adapter
->int_lock
, flags
);
1437 sdio_ireg
= adapter
->int_status
;
1438 adapter
->int_status
= 0;
1439 spin_unlock_irqrestore(&adapter
->int_lock
, flags
);
1444 /* Following interrupt is only for SDIO new mode */
1445 if (sdio_ireg
& DN_LD_CMD_PORT_HOST_INT_STATUS
&& adapter
->cmd_sent
)
1446 adapter
->cmd_sent
= false;
1448 /* Following interrupt is only for SDIO new mode */
1449 if (sdio_ireg
& UP_LD_CMD_PORT_HOST_INT_STATUS
) {
1452 /* read the len of control packet */
1453 rx_len
= card
->mp_regs
[reg
->cmd_rd_len_1
] << 8;
1454 rx_len
|= (u16
)card
->mp_regs
[reg
->cmd_rd_len_0
];
1455 rx_blocks
= DIV_ROUND_UP(rx_len
, MWIFIEX_SDIO_BLOCK_SIZE
);
1456 if (rx_len
<= INTF_HEADER_LEN
||
1457 (rx_blocks
* MWIFIEX_SDIO_BLOCK_SIZE
) >
1458 MWIFIEX_RX_DATA_BUF_SIZE
)
1460 rx_len
= (u16
) (rx_blocks
* MWIFIEX_SDIO_BLOCK_SIZE
);
1461 dev_dbg(adapter
->dev
, "info: rx_len = %d\n", rx_len
);
1463 skb
= mwifiex_alloc_dma_align_buf(rx_len
, GFP_KERNEL
| GFP_DMA
);
1467 skb_put(skb
, rx_len
);
1469 if (mwifiex_sdio_card_to_host(adapter
, &pkt_type
, skb
->data
,
1470 skb
->len
, adapter
->ioport
|
1472 dev_err(adapter
->dev
,
1473 "%s: failed to card_to_host", __func__
);
1474 dev_kfree_skb_any(skb
);
1478 if ((pkt_type
!= MWIFIEX_TYPE_CMD
) &&
1479 (pkt_type
!= MWIFIEX_TYPE_EVENT
))
1480 dev_err(adapter
->dev
,
1481 "%s:Received wrong packet on cmd port",
1484 mwifiex_decode_rx_packet(adapter
, skb
, pkt_type
);
1487 if (sdio_ireg
& DN_LD_HOST_INT_STATUS
) {
1488 bitmap
= (u32
) card
->mp_regs
[reg
->wr_bitmap_l
];
1489 bitmap
|= ((u32
) card
->mp_regs
[reg
->wr_bitmap_u
]) << 8;
1490 if (card
->supports_sdio_new_mode
) {
1492 ((u32
) card
->mp_regs
[reg
->wr_bitmap_1l
]) << 16;
1494 ((u32
) card
->mp_regs
[reg
->wr_bitmap_1u
]) << 24;
1496 card
->mp_wr_bitmap
= bitmap
;
1498 dev_dbg(adapter
->dev
, "int: DNLD: wr_bitmap=0x%x\n",
1499 card
->mp_wr_bitmap
);
1500 if (adapter
->data_sent
&&
1501 (card
->mp_wr_bitmap
& card
->mp_data_port_mask
)) {
1502 dev_dbg(adapter
->dev
,
1503 "info: <--- Tx DONE Interrupt --->\n");
1504 adapter
->data_sent
= false;
1508 /* As firmware will not generate download ready interrupt if the port
1509 updated is command port only, cmd_sent should be done for any SDIO
1511 if (card
->has_control_mask
&& adapter
->cmd_sent
) {
1512 /* Check if firmware has attach buffer at command port and
1513 update just that in wr_bit_map. */
1514 card
->mp_wr_bitmap
|=
1515 (u32
) card
->mp_regs
[reg
->wr_bitmap_l
] & CTRL_PORT_MASK
;
1516 if (card
->mp_wr_bitmap
& CTRL_PORT_MASK
)
1517 adapter
->cmd_sent
= false;
1520 dev_dbg(adapter
->dev
, "info: cmd_sent=%d data_sent=%d\n",
1521 adapter
->cmd_sent
, adapter
->data_sent
);
1522 if (sdio_ireg
& UP_LD_HOST_INT_STATUS
) {
1523 bitmap
= (u32
) card
->mp_regs
[reg
->rd_bitmap_l
];
1524 bitmap
|= ((u32
) card
->mp_regs
[reg
->rd_bitmap_u
]) << 8;
1525 if (card
->supports_sdio_new_mode
) {
1527 ((u32
) card
->mp_regs
[reg
->rd_bitmap_1l
]) << 16;
1529 ((u32
) card
->mp_regs
[reg
->rd_bitmap_1u
]) << 24;
1531 card
->mp_rd_bitmap
= bitmap
;
1532 dev_dbg(adapter
->dev
, "int: UPLD: rd_bitmap=0x%x\n",
1533 card
->mp_rd_bitmap
);
1536 ret
= mwifiex_get_rd_port(adapter
, &port
);
1538 dev_dbg(adapter
->dev
,
1539 "info: no more rd_port available\n");
1542 len_reg_l
= reg
->rd_len_p0_l
+ (port
<< 1);
1543 len_reg_u
= reg
->rd_len_p0_u
+ (port
<< 1);
1544 rx_len
= ((u16
) card
->mp_regs
[len_reg_u
]) << 8;
1545 rx_len
|= (u16
) card
->mp_regs
[len_reg_l
];
1546 dev_dbg(adapter
->dev
, "info: RX: port=%d rx_len=%u\n",
1549 (rx_len
+ MWIFIEX_SDIO_BLOCK_SIZE
-
1550 1) / MWIFIEX_SDIO_BLOCK_SIZE
;
1551 if (rx_len
<= INTF_HEADER_LEN
||
1552 (rx_blocks
* MWIFIEX_SDIO_BLOCK_SIZE
) >
1553 card
->mpa_rx
.buf_size
) {
1554 dev_err(adapter
->dev
, "invalid rx_len=%d\n",
1559 rx_len
= (u16
) (rx_blocks
* MWIFIEX_SDIO_BLOCK_SIZE
);
1560 dev_dbg(adapter
->dev
, "info: rx_len = %d\n", rx_len
);
1562 if (mwifiex_sdio_card_to_host_mp_aggr(adapter
, rx_len
,
1564 dev_err(adapter
->dev
, "card_to_host_mpa failed:"
1565 " int status=%#x\n", sdio_ireg
);
1575 if (mwifiex_read_reg(adapter
, CONFIGURATION_REG
, &cr
))
1576 dev_err(adapter
->dev
, "read CFG reg failed\n");
1578 dev_dbg(adapter
->dev
, "info: CFG reg val = %d\n", cr
);
1580 if (mwifiex_write_reg(adapter
, CONFIGURATION_REG
, (cr
| 0x04)))
1581 dev_err(adapter
->dev
, "write CFG reg failed\n");
1583 dev_dbg(adapter
->dev
, "info: write success\n");
1585 if (mwifiex_read_reg(adapter
, CONFIGURATION_REG
, &cr
))
1586 dev_err(adapter
->dev
, "read CFG reg failed\n");
1588 dev_dbg(adapter
->dev
, "info: CFG reg val =%x\n", cr
);
1594 * This function aggregates transmission buffers in driver and downloads
1595 * the aggregated packet to card.
1597 * The individual packets are aggregated by copying into an aggregation
1598 * buffer and then downloaded to the card. Previous unsent packets in the
1599 * aggregation buffer are pre-copied first before new packets are added.
1600 * Aggregation is done till there is space left in the aggregation buffer,
1601 * or till new packets are available.
1603 * The function will only download the packet to the card when aggregation
1604 * stops, otherwise it will just aggregate the packet in aggregation buffer
1607 static int mwifiex_host_to_card_mp_aggr(struct mwifiex_adapter
*adapter
,
1608 u8
*payload
, u32 pkt_len
, u32 port
,
1611 struct sdio_mmc_card
*card
= adapter
->card
;
1613 s32 f_send_aggr_buf
= 0;
1614 s32 f_send_cur_buf
= 0;
1615 s32 f_precopy_cur_buf
= 0;
1616 s32 f_postcopy_cur_buf
= 0;
1619 if (!card
->mpa_tx
.enabled
||
1620 (card
->has_control_mask
&& (port
== CTRL_PORT
)) ||
1621 (card
->supports_sdio_new_mode
&& (port
== CMD_PORT_SLCT
))) {
1622 dev_dbg(adapter
->dev
, "info: %s: tx aggregation disabled\n",
1626 goto tx_curr_single
;
1630 /* More pkt in TX queue */
1631 dev_dbg(adapter
->dev
, "info: %s: more packets in queue.\n",
1634 if (MP_TX_AGGR_IN_PROGRESS(card
)) {
1635 if (MP_TX_AGGR_BUF_HAS_ROOM(card
, pkt_len
)) {
1636 f_precopy_cur_buf
= 1;
1638 if (!(card
->mp_wr_bitmap
&
1639 (1 << card
->curr_wr_port
)) ||
1640 !MP_TX_AGGR_BUF_HAS_ROOM(
1641 card
, pkt_len
+ next_pkt_len
))
1642 f_send_aggr_buf
= 1;
1644 /* No room in Aggr buf, send it */
1645 f_send_aggr_buf
= 1;
1647 if (!(card
->mp_wr_bitmap
&
1648 (1 << card
->curr_wr_port
)))
1651 f_postcopy_cur_buf
= 1;
1654 if (MP_TX_AGGR_BUF_HAS_ROOM(card
, pkt_len
) &&
1655 (card
->mp_wr_bitmap
& (1 << card
->curr_wr_port
)))
1656 f_precopy_cur_buf
= 1;
1661 /* Last pkt in TX queue */
1662 dev_dbg(adapter
->dev
, "info: %s: Last packet in Tx Queue.\n",
1665 if (MP_TX_AGGR_IN_PROGRESS(card
)) {
1666 /* some packs in Aggr buf already */
1667 f_send_aggr_buf
= 1;
1669 if (MP_TX_AGGR_BUF_HAS_ROOM(card
, pkt_len
))
1670 f_precopy_cur_buf
= 1;
1672 /* No room in Aggr buf, send it */
1679 if (f_precopy_cur_buf
) {
1680 dev_dbg(adapter
->dev
, "data: %s: precopy current buffer\n",
1682 MP_TX_AGGR_BUF_PUT(card
, payload
, pkt_len
, port
);
1684 if (MP_TX_AGGR_PKT_LIMIT_REACHED(card
) ||
1685 mp_tx_aggr_port_limit_reached(card
))
1686 /* No more pkts allowed in Aggr buf, send it */
1687 f_send_aggr_buf
= 1;
1690 if (f_send_aggr_buf
) {
1691 dev_dbg(adapter
->dev
, "data: %s: send aggr buffer: %d %d\n",
1693 card
->mpa_tx
.start_port
, card
->mpa_tx
.ports
);
1694 if (card
->supports_sdio_new_mode
) {
1698 for (i
= 0, port_count
= 0; i
< card
->max_ports
; i
++)
1699 if (card
->mpa_tx
.ports
& BIT(i
))
1702 /* Writing data from "start_port + 0" to "start_port +
1703 * port_count -1", so decrease the count by 1
1706 mport
= (adapter
->ioport
| SDIO_MPA_ADDR_BASE
|
1707 (port_count
<< 8)) + card
->mpa_tx
.start_port
;
1709 mport
= (adapter
->ioport
| SDIO_MPA_ADDR_BASE
|
1710 (card
->mpa_tx
.ports
<< 4)) +
1711 card
->mpa_tx
.start_port
;
1714 ret
= mwifiex_write_data_to_card(adapter
, card
->mpa_tx
.buf
,
1715 card
->mpa_tx
.buf_len
, mport
);
1717 MP_TX_AGGR_BUF_RESET(card
);
1721 if (f_send_cur_buf
) {
1722 dev_dbg(adapter
->dev
, "data: %s: send current buffer %d\n",
1724 ret
= mwifiex_write_data_to_card(adapter
, payload
, pkt_len
,
1725 adapter
->ioport
+ port
);
1728 if (f_postcopy_cur_buf
) {
1729 dev_dbg(adapter
->dev
, "data: %s: postcopy current buffer\n",
1731 MP_TX_AGGR_BUF_PUT(card
, payload
, pkt_len
, port
);
1738 * This function downloads data from driver to card.
1740 * Both commands and data packets are transferred to the card by this
1743 * This function adds the SDIO specific header to the front of the buffer
1744 * before transferring. The header contains the length of the packet and
1745 * the type. The firmware handles the packets based upon this set type.
1747 static int mwifiex_sdio_host_to_card(struct mwifiex_adapter
*adapter
,
1748 u8 type
, struct sk_buff
*skb
,
1749 struct mwifiex_tx_param
*tx_param
)
1751 struct sdio_mmc_card
*card
= adapter
->card
;
1755 u32 port
= CTRL_PORT
;
1756 u8
*payload
= (u8
*)skb
->data
;
1757 u32 pkt_len
= skb
->len
;
1759 /* Allocate buffer and copy payload */
1760 blk_size
= MWIFIEX_SDIO_BLOCK_SIZE
;
1761 buf_block_len
= (pkt_len
+ blk_size
- 1) / blk_size
;
1762 *(__le16
*)&payload
[0] = cpu_to_le16((u16
)pkt_len
);
1763 *(__le16
*)&payload
[2] = cpu_to_le16(type
);
1766 * This is SDIO specific header
1768 * u16 type (MWIFIEX_TYPE_DATA = 0, MWIFIEX_TYPE_CMD = 1,
1769 * MWIFIEX_TYPE_EVENT = 3)
1771 if (type
== MWIFIEX_TYPE_DATA
) {
1772 ret
= mwifiex_get_wr_port_data(adapter
, &port
);
1774 dev_err(adapter
->dev
, "%s: no wr_port available\n",
1779 adapter
->cmd_sent
= true;
1780 /* Type must be MWIFIEX_TYPE_CMD */
1782 if (pkt_len
<= INTF_HEADER_LEN
||
1783 pkt_len
> MWIFIEX_UPLD_SIZE
)
1784 dev_err(adapter
->dev
, "%s: payload=%p, nb=%d\n",
1785 __func__
, payload
, pkt_len
);
1787 if (card
->supports_sdio_new_mode
)
1788 port
= CMD_PORT_SLCT
;
1791 /* Transfer data to card */
1792 pkt_len
= buf_block_len
* blk_size
;
1795 ret
= mwifiex_host_to_card_mp_aggr(adapter
, payload
, pkt_len
,
1796 port
, tx_param
->next_pkt_len
1799 ret
= mwifiex_host_to_card_mp_aggr(adapter
, payload
, pkt_len
,
1803 if (type
== MWIFIEX_TYPE_CMD
)
1804 adapter
->cmd_sent
= false;
1805 if (type
== MWIFIEX_TYPE_DATA
) {
1806 adapter
->data_sent
= false;
1807 /* restore curr_wr_port in error cases */
1808 card
->curr_wr_port
= port
;
1809 card
->mp_wr_bitmap
|= (u32
)(1 << card
->curr_wr_port
);
1812 if (type
== MWIFIEX_TYPE_DATA
) {
1813 if (!(card
->mp_wr_bitmap
& (1 << card
->curr_wr_port
)))
1814 adapter
->data_sent
= true;
1816 adapter
->data_sent
= false;
1824 * This function allocates the MPA Tx and Rx buffers.
1826 static int mwifiex_alloc_sdio_mpa_buffers(struct mwifiex_adapter
*adapter
,
1827 u32 mpa_tx_buf_size
, u32 mpa_rx_buf_size
)
1829 struct sdio_mmc_card
*card
= adapter
->card
;
1833 card
->mpa_tx
.buf
= kzalloc(mpa_tx_buf_size
, GFP_KERNEL
);
1834 if (!card
->mpa_tx
.buf
) {
1839 card
->mpa_tx
.buf_size
= mpa_tx_buf_size
;
1841 rx_buf_size
= max_t(u32
, mpa_rx_buf_size
,
1842 (u32
)SDIO_MAX_AGGR_BUF_SIZE
);
1843 card
->mpa_rx
.buf
= kzalloc(rx_buf_size
, GFP_KERNEL
);
1844 if (!card
->mpa_rx
.buf
) {
1849 card
->mpa_rx
.buf_size
= rx_buf_size
;
1853 kfree(card
->mpa_tx
.buf
);
1854 kfree(card
->mpa_rx
.buf
);
1861 * This function unregisters the SDIO device.
1863 * The SDIO IRQ is released, the function is disabled and driver
1864 * data is set to null.
1867 mwifiex_unregister_dev(struct mwifiex_adapter
*adapter
)
1869 struct sdio_mmc_card
*card
= adapter
->card
;
1871 if (adapter
->card
) {
1872 sdio_claim_host(card
->func
);
1873 sdio_disable_func(card
->func
);
1874 sdio_release_host(card
->func
);
1879 * This function registers the SDIO device.
1881 * SDIO IRQ is claimed, block size is set and driver data is initialized.
1883 static int mwifiex_register_dev(struct mwifiex_adapter
*adapter
)
1886 struct sdio_mmc_card
*card
= adapter
->card
;
1887 struct sdio_func
*func
= card
->func
;
1889 /* save adapter pointer in card */
1890 card
->adapter
= adapter
;
1891 adapter
->tx_buf_size
= card
->tx_buf_size
;
1893 sdio_claim_host(func
);
1895 /* Set block size */
1896 ret
= sdio_set_block_size(card
->func
, MWIFIEX_SDIO_BLOCK_SIZE
);
1897 sdio_release_host(func
);
1899 pr_err("cannot set SDIO block size\n");
1904 adapter
->dev
= &func
->dev
;
1906 strcpy(adapter
->fw_name
, card
->firmware
);
1907 adapter
->mem_type_mapping_tbl
= mem_type_mapping_tbl
;
1908 adapter
->num_mem_types
= ARRAY_SIZE(mem_type_mapping_tbl
);
1914 * This function initializes the SDIO driver.
1916 * The following initializations steps are followed -
1917 * - Read the Host interrupt status register to acknowledge
1918 * the first interrupt got from bootloader
1919 * - Disable host interrupt mask register
1921 * - Initialize SDIO variables in card
1922 * - Allocate MP registers
1923 * - Allocate MPA Tx and Rx buffers
1925 static int mwifiex_init_sdio(struct mwifiex_adapter
*adapter
)
1927 struct sdio_mmc_card
*card
= adapter
->card
;
1928 const struct mwifiex_sdio_card_reg
*reg
= card
->reg
;
1932 sdio_set_drvdata(card
->func
, card
);
1935 * Read the host_int_status_reg for ACK the first interrupt got
1936 * from the bootloader. If we don't do this we get a interrupt
1937 * as soon as we register the irq.
1939 mwifiex_read_reg(adapter
, card
->reg
->host_int_status_reg
, &sdio_ireg
);
1941 /* Get SDIO ioport */
1942 mwifiex_init_sdio_ioport(adapter
);
1944 /* Initialize SDIO variables in card */
1945 card
->mp_rd_bitmap
= 0;
1946 card
->mp_wr_bitmap
= 0;
1947 card
->curr_rd_port
= reg
->start_rd_port
;
1948 card
->curr_wr_port
= reg
->start_wr_port
;
1950 card
->mp_data_port_mask
= reg
->data_port_mask
;
1952 card
->mpa_tx
.buf_len
= 0;
1953 card
->mpa_tx
.pkt_cnt
= 0;
1954 card
->mpa_tx
.start_port
= 0;
1956 card
->mpa_tx
.enabled
= 1;
1957 card
->mpa_tx
.pkt_aggr_limit
= card
->mp_agg_pkt_limit
;
1959 card
->mpa_rx
.buf_len
= 0;
1960 card
->mpa_rx
.pkt_cnt
= 0;
1961 card
->mpa_rx
.start_port
= 0;
1963 card
->mpa_rx
.enabled
= 1;
1964 card
->mpa_rx
.pkt_aggr_limit
= card
->mp_agg_pkt_limit
;
1966 /* Allocate buffers for SDIO MP-A */
1967 card
->mp_regs
= kzalloc(reg
->max_mp_regs
, GFP_KERNEL
);
1971 /* Allocate skb pointer buffers */
1972 card
->mpa_rx
.skb_arr
= kzalloc((sizeof(void *)) *
1973 card
->mp_agg_pkt_limit
, GFP_KERNEL
);
1974 card
->mpa_rx
.len_arr
= kzalloc(sizeof(*card
->mpa_rx
.len_arr
) *
1975 card
->mp_agg_pkt_limit
, GFP_KERNEL
);
1976 ret
= mwifiex_alloc_sdio_mpa_buffers(adapter
,
1977 card
->mp_tx_agg_buf_size
,
1978 card
->mp_rx_agg_buf_size
);
1980 dev_err(adapter
->dev
, "failed to alloc sdio mp-a buffers\n");
1981 kfree(card
->mp_regs
);
1985 adapter
->auto_tdls
= card
->can_auto_tdls
;
1986 adapter
->ext_scan
= card
->can_ext_scan
;
1991 * This function resets the MPA Tx and Rx buffers.
1993 static void mwifiex_cleanup_mpa_buf(struct mwifiex_adapter
*adapter
)
1995 struct sdio_mmc_card
*card
= adapter
->card
;
1997 MP_TX_AGGR_BUF_RESET(card
);
1998 MP_RX_AGGR_BUF_RESET(card
);
2002 * This function cleans up the allocated card buffers.
2004 * The following are freed by this function -
2009 static void mwifiex_cleanup_sdio(struct mwifiex_adapter
*adapter
)
2011 struct sdio_mmc_card
*card
= adapter
->card
;
2013 kfree(card
->mp_regs
);
2014 kfree(card
->mpa_rx
.skb_arr
);
2015 kfree(card
->mpa_rx
.len_arr
);
2016 kfree(card
->mpa_tx
.buf
);
2017 kfree(card
->mpa_rx
.buf
);
2018 sdio_set_drvdata(card
->func
, NULL
);
2023 * This function updates the MP end port in card.
2026 mwifiex_update_mp_end_port(struct mwifiex_adapter
*adapter
, u16 port
)
2028 struct sdio_mmc_card
*card
= adapter
->card
;
2029 const struct mwifiex_sdio_card_reg
*reg
= card
->reg
;
2032 card
->mp_end_port
= port
;
2034 card
->mp_data_port_mask
= reg
->data_port_mask
;
2036 if (reg
->start_wr_port
) {
2037 for (i
= 1; i
<= card
->max_ports
- card
->mp_end_port
; i
++)
2038 card
->mp_data_port_mask
&=
2039 ~(1 << (card
->max_ports
- i
));
2042 card
->curr_wr_port
= reg
->start_wr_port
;
2044 dev_dbg(adapter
->dev
, "cmd: mp_end_port %d, data port mask 0x%x\n",
2045 port
, card
->mp_data_port_mask
);
2048 static struct mwifiex_adapter
*save_adapter
;
2049 static void mwifiex_sdio_card_reset_work(struct mwifiex_adapter
*adapter
)
2051 struct sdio_mmc_card
*card
= adapter
->card
;
2052 struct mmc_host
*target
= card
->func
->card
->host
;
2054 /* The actual reset operation must be run outside of driver thread.
2055 * This is because mmc_remove_host() will cause the device to be
2056 * instantly destroyed, and the driver then needs to end its thread,
2057 * leading to a deadlock.
2059 * We run it in a totally independent workqueue.
2062 pr_err("Resetting card...\n");
2063 mmc_remove_host(target
);
2064 /* 200ms delay is based on experiment with sdhci controller */
2066 target
->rescan_entered
= 0; /* rescan non-removable cards */
2067 mmc_add_host(target
);
2070 /* This function read/write firmware */
2072 rdwr_status
mwifiex_sdio_rdwr_firmware(struct mwifiex_adapter
*adapter
,
2075 struct sdio_mmc_card
*card
= adapter
->card
;
2079 sdio_writeb(card
->func
, FW_DUMP_HOST_READY
, card
->reg
->fw_dump_ctrl
,
2082 dev_err(adapter
->dev
, "SDIO Write ERR\n");
2083 return RDWR_STATUS_FAILURE
;
2085 for (tries
= 0; tries
< MAX_POLL_TRIES
; tries
++) {
2086 ctrl_data
= sdio_readb(card
->func
, card
->reg
->fw_dump_ctrl
,
2089 dev_err(adapter
->dev
, "SDIO read err\n");
2090 return RDWR_STATUS_FAILURE
;
2092 if (ctrl_data
== FW_DUMP_DONE
)
2094 if (doneflag
&& ctrl_data
== doneflag
)
2095 return RDWR_STATUS_DONE
;
2096 if (ctrl_data
!= FW_DUMP_HOST_READY
) {
2097 dev_info(adapter
->dev
,
2098 "The ctrl reg was changed, re-try again!\n");
2099 sdio_writeb(card
->func
, FW_DUMP_HOST_READY
,
2100 card
->reg
->fw_dump_ctrl
, &ret
);
2102 dev_err(adapter
->dev
, "SDIO write err\n");
2103 return RDWR_STATUS_FAILURE
;
2106 usleep_range(100, 200);
2108 if (ctrl_data
== FW_DUMP_HOST_READY
) {
2109 dev_err(adapter
->dev
, "Fail to pull ctrl_data\n");
2110 return RDWR_STATUS_FAILURE
;
2113 return RDWR_STATUS_SUCCESS
;
2116 /* This function dump firmware memory to file */
2117 static void mwifiex_sdio_fw_dump_work(struct mwifiex_adapter
*adapter
)
2119 struct sdio_mmc_card
*card
= adapter
->card
;
2121 unsigned int reg
, reg_start
, reg_end
;
2122 u8
*dbg_ptr
, *end_ptr
, dump_num
, idx
, i
, read_reg
, doneflag
= 0;
2123 enum rdwr_status stat
;
2125 static char *env
[] = { "DRIVER=mwifiex_sdio", "EVENT=fw_dump", NULL
};
2127 mwifiex_dump_drv_info(adapter
);
2129 if (!card
->can_dump_fw
)
2132 for (idx
= 0; idx
< ARRAY_SIZE(mem_type_mapping_tbl
); idx
++) {
2133 struct memory_type_mapping
*entry
= &mem_type_mapping_tbl
[idx
];
2135 if (entry
->mem_ptr
) {
2136 vfree(entry
->mem_ptr
);
2137 entry
->mem_ptr
= NULL
;
2139 entry
->mem_size
= 0;
2142 mwifiex_pm_wakeup_card(adapter
);
2143 sdio_claim_host(card
->func
);
2145 dev_info(adapter
->dev
, "== mwifiex firmware dump start ==\n");
2147 stat
= mwifiex_sdio_rdwr_firmware(adapter
, doneflag
);
2148 if (stat
== RDWR_STATUS_FAILURE
)
2151 reg
= card
->reg
->fw_dump_start
;
2152 /* Read the number of the memories which will dump */
2153 dump_num
= sdio_readb(card
->func
, reg
, &ret
);
2155 dev_err(adapter
->dev
, "SDIO read memory length err\n");
2159 /* Read the length of every memory which will dump */
2160 for (idx
= 0; idx
< dump_num
; idx
++) {
2161 struct memory_type_mapping
*entry
= &mem_type_mapping_tbl
[idx
];
2163 stat
= mwifiex_sdio_rdwr_firmware(adapter
, doneflag
);
2164 if (stat
== RDWR_STATUS_FAILURE
)
2168 reg
= card
->reg
->fw_dump_start
;
2169 for (i
= 0; i
< 4; i
++) {
2170 read_reg
= sdio_readb(card
->func
, reg
, &ret
);
2172 dev_err(adapter
->dev
, "SDIO read err\n");
2175 memory_size
|= (read_reg
<< i
*8);
2179 if (memory_size
== 0) {
2180 dev_info(adapter
->dev
, "Firmware dump Finished!\n");
2184 dev_info(adapter
->dev
,
2185 "%s_SIZE=0x%x\n", entry
->mem_name
, memory_size
);
2186 entry
->mem_ptr
= vmalloc(memory_size
+ 1);
2187 entry
->mem_size
= memory_size
;
2188 if (!entry
->mem_ptr
) {
2189 dev_err(adapter
->dev
, "Vmalloc %s failed\n",
2193 dbg_ptr
= entry
->mem_ptr
;
2194 end_ptr
= dbg_ptr
+ memory_size
;
2196 doneflag
= entry
->done_flag
;
2197 dev_info(adapter
->dev
, "Start %s output, please wait...\n",
2201 stat
= mwifiex_sdio_rdwr_firmware(adapter
, doneflag
);
2202 if (stat
== RDWR_STATUS_FAILURE
)
2205 reg_start
= card
->reg
->fw_dump_start
;
2206 reg_end
= card
->reg
->fw_dump_end
;
2207 for (reg
= reg_start
; reg
<= reg_end
; reg
++) {
2208 *dbg_ptr
= sdio_readb(card
->func
, reg
, &ret
);
2210 dev_err(adapter
->dev
,
2214 if (dbg_ptr
< end_ptr
)
2217 dev_err(adapter
->dev
,
2218 "Allocated buf not enough\n");
2221 if (stat
!= RDWR_STATUS_DONE
)
2224 dev_info(adapter
->dev
, "%s done: size=0x%tx\n",
2225 entry
->mem_name
, dbg_ptr
- entry
->mem_ptr
);
2229 dev_info(adapter
->dev
, "== mwifiex firmware dump end ==\n");
2231 kobject_uevent_env(&adapter
->wiphy
->dev
.kobj
, KOBJ_CHANGE
, env
);
2234 sdio_release_host(card
->func
);
2235 adapter
->curr_mem_idx
= 0;
2238 static void mwifiex_sdio_work(struct work_struct
*work
)
2240 if (test_and_clear_bit(MWIFIEX_IFACE_WORK_FW_DUMP
,
2242 mwifiex_sdio_fw_dump_work(save_adapter
);
2243 if (test_and_clear_bit(MWIFIEX_IFACE_WORK_CARD_RESET
,
2245 mwifiex_sdio_card_reset_work(save_adapter
);
2248 static DECLARE_WORK(sdio_work
, mwifiex_sdio_work
);
2249 /* This function resets the card */
2250 static void mwifiex_sdio_card_reset(struct mwifiex_adapter
*adapter
)
2252 save_adapter
= adapter
;
2253 if (test_bit(MWIFIEX_IFACE_WORK_CARD_RESET
, &iface_work_flags
))
2256 set_bit(MWIFIEX_IFACE_WORK_CARD_RESET
, &iface_work_flags
);
2258 schedule_work(&sdio_work
);
2261 /* This function dumps FW information */
2262 static void mwifiex_sdio_fw_dump(struct mwifiex_adapter
*adapter
)
2264 save_adapter
= adapter
;
2265 if (test_bit(MWIFIEX_IFACE_WORK_FW_DUMP
, &iface_work_flags
))
2268 set_bit(MWIFIEX_IFACE_WORK_FW_DUMP
, &iface_work_flags
);
2269 schedule_work(&sdio_work
);
2272 /* Function to dump SDIO function registers and SDIO scratch registers in case
2276 mwifiex_sdio_reg_dump(struct mwifiex_adapter
*adapter
, char *drv_buf
)
2279 struct sdio_mmc_card
*cardp
= adapter
->card
;
2281 u8 count
, func
, data
, index
= 0, size
= 0;
2282 u8 reg
, reg_start
, reg_end
;
2283 char buf
[256], *ptr
;
2288 dev_info(adapter
->dev
, "SDIO register DUMP START\n");
2290 mwifiex_pm_wakeup_card(adapter
);
2292 sdio_claim_host(cardp
->func
);
2294 for (count
= 0; count
< 5; count
++) {
2295 memset(buf
, 0, sizeof(buf
));
2300 /* Read the registers of SDIO function0 */
2306 /* Read the registers of SDIO function1 */
2308 reg_start
= cardp
->reg
->func1_dump_reg_start
;
2309 reg_end
= cardp
->reg
->func1_dump_reg_end
;
2314 reg_start
= cardp
->reg
->func1_spec_reg_table
[index
++];
2315 size
= cardp
->reg
->func1_spec_reg_num
;
2316 reg_end
= cardp
->reg
->func1_spec_reg_table
[size
-1];
2319 /* Read the scratch registers of SDIO function1 */
2323 reg_start
= cardp
->reg
->func1_scratch_reg
;
2324 reg_end
= reg_start
+ MWIFIEX_SDIO_SCRATCH_SIZE
;
2328 ptr
+= sprintf(ptr
, "SDIO Func%d (%#x-%#x): ",
2329 func
, reg_start
, reg_end
);
2331 ptr
+= sprintf(ptr
, "SDIO Func%d: ", func
);
2333 for (reg
= reg_start
; reg
<= reg_end
;) {
2335 data
= sdio_f0_readb(cardp
->func
, reg
, &ret
);
2337 data
= sdio_readb(cardp
->func
, reg
, &ret
);
2340 ptr
+= sprintf(ptr
, "(%#x) ", reg
);
2342 ptr
+= sprintf(ptr
, "%02x ", data
);
2344 ptr
+= sprintf(ptr
, "ERR");
2348 if (count
== 2 && reg
< reg_end
)
2349 reg
= cardp
->reg
->func1_spec_reg_table
[index
++];
2354 dev_info(adapter
->dev
, "%s\n", buf
);
2355 p
+= sprintf(p
, "%s\n", buf
);
2358 sdio_release_host(cardp
->func
);
2360 dev_info(adapter
->dev
, "SDIO register DUMP END\n");
2365 static struct mwifiex_if_ops sdio_ops
= {
2366 .init_if
= mwifiex_init_sdio
,
2367 .cleanup_if
= mwifiex_cleanup_sdio
,
2368 .check_fw_status
= mwifiex_check_fw_status
,
2369 .prog_fw
= mwifiex_prog_fw_w_helper
,
2370 .register_dev
= mwifiex_register_dev
,
2371 .unregister_dev
= mwifiex_unregister_dev
,
2372 .enable_int
= mwifiex_sdio_enable_host_int
,
2373 .disable_int
= mwifiex_sdio_disable_host_int
,
2374 .process_int_status
= mwifiex_process_int_status
,
2375 .host_to_card
= mwifiex_sdio_host_to_card
,
2376 .wakeup
= mwifiex_pm_wakeup_card
,
2377 .wakeup_complete
= mwifiex_pm_wakeup_card_complete
,
2380 .update_mp_end_port
= mwifiex_update_mp_end_port
,
2381 .cleanup_mpa_buf
= mwifiex_cleanup_mpa_buf
,
2382 .cmdrsp_complete
= mwifiex_sdio_cmdrsp_complete
,
2383 .event_complete
= mwifiex_sdio_event_complete
,
2384 .card_reset
= mwifiex_sdio_card_reset
,
2385 .fw_dump
= mwifiex_sdio_fw_dump
,
2386 .reg_dump
= mwifiex_sdio_reg_dump
,
2387 .deaggr_pkt
= mwifiex_deaggr_sdio_pkt
,
2391 * This function initializes the SDIO driver.
2393 * This initiates the semaphore and registers the device with
2397 mwifiex_sdio_init_module(void)
2399 sema_init(&add_remove_card_sem
, 1);
2401 /* Clear the flag in case user removes the card. */
2404 return sdio_register_driver(&mwifiex_sdio
);
2408 * This function cleans up the SDIO driver.
2410 * The following major steps are followed for cleanup -
2411 * - Resume the device if its suspended
2412 * - Disconnect the device if connected
2413 * - Shutdown the firmware
2414 * - Unregister the device from SDIO bus.
2417 mwifiex_sdio_cleanup_module(void)
2419 if (!down_interruptible(&add_remove_card_sem
))
2420 up(&add_remove_card_sem
);
2422 /* Set the flag as user is removing this module. */
2424 cancel_work_sync(&sdio_work
);
2426 sdio_unregister_driver(&mwifiex_sdio
);
2429 module_init(mwifiex_sdio_init_module
);
2430 module_exit(mwifiex_sdio_cleanup_module
);
2432 MODULE_AUTHOR("Marvell International Ltd.");
2433 MODULE_DESCRIPTION("Marvell WiFi-Ex SDIO Driver version " SDIO_VERSION
);
2434 MODULE_VERSION(SDIO_VERSION
);
2435 MODULE_LICENSE("GPL v2");
2436 MODULE_FIRMWARE(SD8786_DEFAULT_FW_NAME
);
2437 MODULE_FIRMWARE(SD8787_DEFAULT_FW_NAME
);
2438 MODULE_FIRMWARE(SD8797_DEFAULT_FW_NAME
);
2439 MODULE_FIRMWARE(SD8897_DEFAULT_FW_NAME
);
2440 MODULE_FIRMWARE(SD8887_DEFAULT_FW_NAME
);