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
;
51 static struct semaphore add_remove_card_sem
;
53 static struct memory_type_mapping mem_type_mapping_tbl
[] = {
54 {"ITCM", NULL
, 0, 0xF0},
55 {"DTCM", NULL
, 0, 0xF1},
56 {"SQRAM", NULL
, 0, 0xF2},
57 {"APU", NULL
, 0, 0xF3},
58 {"CIU", NULL
, 0, 0xF4},
59 {"ICU", NULL
, 0, 0xF5},
60 {"MAC", NULL
, 0, 0xF6},
61 {"EXT7", NULL
, 0, 0xF7},
62 {"EXT8", NULL
, 0, 0xF8},
63 {"EXT9", NULL
, 0, 0xF9},
64 {"EXT10", NULL
, 0, 0xFA},
65 {"EXT11", NULL
, 0, 0xFB},
66 {"EXT12", NULL
, 0, 0xFC},
67 {"EXT13", NULL
, 0, 0xFD},
68 {"EXTLAST", NULL
, 0, 0xFE},
74 * This function probes an mwifiex device and registers it. It allocates
75 * the card structure, enables SDIO function number and initiates the
76 * device registration and initialization procedure by adding a logical
80 mwifiex_sdio_probe(struct sdio_func
*func
, const struct sdio_device_id
*id
)
83 struct sdio_mmc_card
*card
= NULL
;
85 pr_debug("info: vendor=0x%4.04X device=0x%4.04X class=%d function=%d\n",
86 func
->vendor
, func
->device
, func
->class, func
->num
);
88 card
= kzalloc(sizeof(struct sdio_mmc_card
), GFP_KERNEL
);
94 func
->card
->quirks
|= MMC_QUIRK_BLKSZ_FOR_BYTE_MODE
;
96 if (id
->driver_data
) {
97 struct mwifiex_sdio_device
*data
= (void *)id
->driver_data
;
99 card
->firmware
= data
->firmware
;
100 card
->reg
= data
->reg
;
101 card
->max_ports
= data
->max_ports
;
102 card
->mp_agg_pkt_limit
= data
->mp_agg_pkt_limit
;
103 card
->supports_sdio_new_mode
= data
->supports_sdio_new_mode
;
104 card
->has_control_mask
= data
->has_control_mask
;
105 card
->tx_buf_size
= data
->tx_buf_size
;
106 card
->mp_tx_agg_buf_size
= data
->mp_tx_agg_buf_size
;
107 card
->mp_rx_agg_buf_size
= data
->mp_rx_agg_buf_size
;
108 card
->can_dump_fw
= data
->can_dump_fw
;
109 card
->can_auto_tdls
= data
->can_auto_tdls
;
110 card
->can_ext_scan
= data
->can_ext_scan
;
113 sdio_claim_host(func
);
114 ret
= sdio_enable_func(func
);
115 sdio_release_host(func
);
118 pr_err("%s: failed to enable function\n", __func__
);
123 if (mwifiex_add_card(card
, &add_remove_card_sem
, &sdio_ops
,
125 pr_err("%s: add card failed\n", __func__
);
127 sdio_claim_host(func
);
128 ret
= sdio_disable_func(func
);
129 sdio_release_host(func
);
139 * Kernel needs to suspend all functions separately. Therefore all
140 * registered functions must have drivers with suspend and resume
141 * methods. Failing that the kernel simply removes the whole card.
143 * If already not resumed, this function turns on the traffic and
144 * sends a host sleep cancel request to the firmware.
146 static int mwifiex_sdio_resume(struct device
*dev
)
148 struct sdio_func
*func
= dev_to_sdio_func(dev
);
149 struct sdio_mmc_card
*card
;
150 struct mwifiex_adapter
*adapter
;
151 mmc_pm_flag_t pm_flag
= 0;
154 pm_flag
= sdio_get_host_pm_caps(func
);
155 card
= sdio_get_drvdata(func
);
156 if (!card
|| !card
->adapter
) {
157 pr_err("resume: invalid card or adapter\n");
161 pr_err("resume: sdio_func is not specified\n");
165 adapter
= card
->adapter
;
167 if (!adapter
->is_suspended
) {
168 dev_warn(adapter
->dev
, "device already resumed\n");
172 adapter
->is_suspended
= false;
174 /* Disable Host Sleep */
175 mwifiex_cancel_hs(mwifiex_get_priv(adapter
, MWIFIEX_BSS_ROLE_STA
),
184 * This function removes the interface and frees up the card structure.
187 mwifiex_sdio_remove(struct sdio_func
*func
)
189 struct sdio_mmc_card
*card
;
190 struct mwifiex_adapter
*adapter
;
191 struct mwifiex_private
*priv
;
193 pr_debug("info: SDIO func num=%d\n", func
->num
);
195 card
= sdio_get_drvdata(func
);
199 adapter
= card
->adapter
;
200 if (!adapter
|| !adapter
->priv_num
)
203 cancel_work_sync(&adapter
->iface_work
);
206 if (adapter
->is_suspended
)
207 mwifiex_sdio_resume(adapter
->dev
);
209 mwifiex_deauthenticate_all(adapter
);
211 priv
= mwifiex_get_priv(adapter
, MWIFIEX_BSS_ROLE_ANY
);
212 mwifiex_disable_auto_ds(priv
);
213 mwifiex_init_shutdown_fw(priv
, MWIFIEX_FUNC_SHUTDOWN
);
216 mwifiex_remove_card(card
->adapter
, &add_remove_card_sem
);
222 * Kernel needs to suspend all functions separately. Therefore all
223 * registered functions must have drivers with suspend and resume
224 * methods. Failing that the kernel simply removes the whole card.
226 * If already not suspended, this function allocates and sends a host
227 * sleep activate request to the firmware and turns off the traffic.
229 static int mwifiex_sdio_suspend(struct device
*dev
)
231 struct sdio_func
*func
= dev_to_sdio_func(dev
);
232 struct sdio_mmc_card
*card
;
233 struct mwifiex_adapter
*adapter
;
234 mmc_pm_flag_t pm_flag
= 0;
238 pm_flag
= sdio_get_host_pm_caps(func
);
239 pr_debug("cmd: %s: suspend: PM flag = 0x%x\n",
240 sdio_func_id(func
), pm_flag
);
241 if (!(pm_flag
& MMC_PM_KEEP_POWER
)) {
242 pr_err("%s: cannot remain alive while host is"
243 " suspended\n", sdio_func_id(func
));
247 card
= sdio_get_drvdata(func
);
248 if (!card
|| !card
->adapter
) {
249 pr_err("suspend: invalid card or adapter\n");
253 pr_err("suspend: sdio_func is not specified\n");
257 adapter
= card
->adapter
;
259 /* Enable the Host Sleep */
260 if (!mwifiex_enable_hs(adapter
)) {
261 dev_err(adapter
->dev
, "cmd: failed to suspend\n");
262 adapter
->hs_enabling
= false;
266 dev_dbg(adapter
->dev
, "cmd: suspend with MMC_PM_KEEP_POWER\n");
267 ret
= sdio_set_host_pm_flags(func
, MMC_PM_KEEP_POWER
);
269 /* Indicate device suspended */
270 adapter
->is_suspended
= true;
271 adapter
->hs_enabling
= false;
276 /* Device ID for SD8786 */
277 #define SDIO_DEVICE_ID_MARVELL_8786 (0x9116)
278 /* Device ID for SD8787 */
279 #define SDIO_DEVICE_ID_MARVELL_8787 (0x9119)
280 /* Device ID for SD8797 */
281 #define SDIO_DEVICE_ID_MARVELL_8797 (0x9129)
282 /* Device ID for SD8897 */
283 #define SDIO_DEVICE_ID_MARVELL_8897 (0x912d)
284 /* Device ID for SD8887 */
285 #define SDIO_DEVICE_ID_MARVELL_8887 (0x9135)
286 /* Device ID for SD8801 */
287 #define SDIO_DEVICE_ID_MARVELL_8801 (0x9139)
291 static const struct sdio_device_id mwifiex_ids
[] = {
292 {SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL
, SDIO_DEVICE_ID_MARVELL_8786
),
293 .driver_data
= (unsigned long) &mwifiex_sdio_sd8786
},
294 {SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL
, SDIO_DEVICE_ID_MARVELL_8787
),
295 .driver_data
= (unsigned long) &mwifiex_sdio_sd8787
},
296 {SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL
, SDIO_DEVICE_ID_MARVELL_8797
),
297 .driver_data
= (unsigned long) &mwifiex_sdio_sd8797
},
298 {SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL
, SDIO_DEVICE_ID_MARVELL_8897
),
299 .driver_data
= (unsigned long) &mwifiex_sdio_sd8897
},
300 {SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL
, SDIO_DEVICE_ID_MARVELL_8887
),
301 .driver_data
= (unsigned long)&mwifiex_sdio_sd8887
},
302 {SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL
, SDIO_DEVICE_ID_MARVELL_8801
),
303 .driver_data
= (unsigned long)&mwifiex_sdio_sd8801
},
307 MODULE_DEVICE_TABLE(sdio
, mwifiex_ids
);
309 static const struct dev_pm_ops mwifiex_sdio_pm_ops
= {
310 .suspend
= mwifiex_sdio_suspend
,
311 .resume
= mwifiex_sdio_resume
,
314 static struct sdio_driver mwifiex_sdio
= {
315 .name
= "mwifiex_sdio",
316 .id_table
= mwifiex_ids
,
317 .probe
= mwifiex_sdio_probe
,
318 .remove
= mwifiex_sdio_remove
,
320 .owner
= THIS_MODULE
,
321 .pm
= &mwifiex_sdio_pm_ops
,
325 /* Write data into SDIO card register. Caller claims SDIO device. */
327 mwifiex_write_reg_locked(struct sdio_func
*func
, u32 reg
, u8 data
)
330 sdio_writeb(func
, data
, reg
, &ret
);
335 * This function writes data into SDIO card register.
338 mwifiex_write_reg(struct mwifiex_adapter
*adapter
, u32 reg
, u8 data
)
340 struct sdio_mmc_card
*card
= adapter
->card
;
343 sdio_claim_host(card
->func
);
344 ret
= mwifiex_write_reg_locked(card
->func
, reg
, data
);
345 sdio_release_host(card
->func
);
351 * This function reads data from SDIO card register.
354 mwifiex_read_reg(struct mwifiex_adapter
*adapter
, u32 reg
, u8
*data
)
356 struct sdio_mmc_card
*card
= adapter
->card
;
360 sdio_claim_host(card
->func
);
361 val
= sdio_readb(card
->func
, reg
, &ret
);
362 sdio_release_host(card
->func
);
370 * This function writes multiple data into SDIO card memory.
372 * This does not work in suspended mode.
375 mwifiex_write_data_sync(struct mwifiex_adapter
*adapter
,
376 u8
*buffer
, u32 pkt_len
, u32 port
)
378 struct sdio_mmc_card
*card
= adapter
->card
;
381 (port
& MWIFIEX_SDIO_BYTE_MODE_MASK
) ? BYTE_MODE
: BLOCK_MODE
;
382 u32 blk_size
= (blk_mode
== BLOCK_MODE
) ? MWIFIEX_SDIO_BLOCK_SIZE
: 1;
385 BLOCK_MODE
) ? (pkt_len
/
386 MWIFIEX_SDIO_BLOCK_SIZE
) : pkt_len
;
387 u32 ioport
= (port
& MWIFIEX_SDIO_IO_PORT_MASK
);
389 if (adapter
->is_suspended
) {
390 dev_err(adapter
->dev
,
391 "%s: not allowed while suspended\n", __func__
);
395 sdio_claim_host(card
->func
);
397 ret
= sdio_writesb(card
->func
, ioport
, buffer
, blk_cnt
* blk_size
);
399 sdio_release_host(card
->func
);
405 * This function reads multiple data from SDIO card memory.
407 static int mwifiex_read_data_sync(struct mwifiex_adapter
*adapter
, u8
*buffer
,
408 u32 len
, u32 port
, u8 claim
)
410 struct sdio_mmc_card
*card
= adapter
->card
;
412 u8 blk_mode
= (port
& MWIFIEX_SDIO_BYTE_MODE_MASK
) ? BYTE_MODE
414 u32 blk_size
= (blk_mode
== BLOCK_MODE
) ? MWIFIEX_SDIO_BLOCK_SIZE
: 1;
415 u32 blk_cnt
= (blk_mode
== BLOCK_MODE
) ? (len
/ MWIFIEX_SDIO_BLOCK_SIZE
)
417 u32 ioport
= (port
& MWIFIEX_SDIO_IO_PORT_MASK
);
420 sdio_claim_host(card
->func
);
422 ret
= sdio_readsb(card
->func
, buffer
, ioport
, blk_cnt
* blk_size
);
425 sdio_release_host(card
->func
);
431 * This function wakes up the card.
433 * A host power up command is written to the card configuration
434 * register to wake up the card.
436 static int mwifiex_pm_wakeup_card(struct mwifiex_adapter
*adapter
)
438 dev_dbg(adapter
->dev
, "event: wakeup device...\n");
440 return mwifiex_write_reg(adapter
, CONFIGURATION_REG
, HOST_POWER_UP
);
444 * This function is called after the card has woken up.
446 * The card configuration register is reset.
448 static int mwifiex_pm_wakeup_card_complete(struct mwifiex_adapter
*adapter
)
450 dev_dbg(adapter
->dev
, "cmd: wakeup device completed\n");
452 return mwifiex_write_reg(adapter
, CONFIGURATION_REG
, 0);
456 * This function is used to initialize IO ports for the
457 * chipsets supporting SDIO new mode eg SD8897.
459 static int mwifiex_init_sdio_new_mode(struct mwifiex_adapter
*adapter
)
462 struct sdio_mmc_card
*card
= adapter
->card
;
464 adapter
->ioport
= MEM_PORT
;
466 /* enable sdio new mode */
467 if (mwifiex_read_reg(adapter
, card
->reg
->card_cfg_2_1_reg
, ®
))
469 if (mwifiex_write_reg(adapter
, card
->reg
->card_cfg_2_1_reg
,
470 reg
| CMD53_NEW_MODE
))
473 /* Configure cmd port and enable reading rx length from the register */
474 if (mwifiex_read_reg(adapter
, card
->reg
->cmd_cfg_0
, ®
))
476 if (mwifiex_write_reg(adapter
, card
->reg
->cmd_cfg_0
,
477 reg
| CMD_PORT_RD_LEN_EN
))
480 /* Enable Dnld/Upld ready auto reset for cmd port after cmd53 is
483 if (mwifiex_read_reg(adapter
, card
->reg
->cmd_cfg_1
, ®
))
485 if (mwifiex_write_reg(adapter
, card
->reg
->cmd_cfg_1
,
486 reg
| CMD_PORT_AUTO_EN
))
492 /* This function initializes the IO ports.
494 * The following operations are performed -
495 * - Read the IO ports (0, 1 and 2)
496 * - Set host interrupt Reset-To-Read to clear
497 * - Set auto re-enable interrupt
499 static int mwifiex_init_sdio_ioport(struct mwifiex_adapter
*adapter
)
502 struct sdio_mmc_card
*card
= adapter
->card
;
506 if (card
->supports_sdio_new_mode
) {
507 if (mwifiex_init_sdio_new_mode(adapter
))
512 /* Read the IO port */
513 if (!mwifiex_read_reg(adapter
, card
->reg
->io_port_0_reg
, ®
))
514 adapter
->ioport
|= (reg
& 0xff);
518 if (!mwifiex_read_reg(adapter
, card
->reg
->io_port_1_reg
, ®
))
519 adapter
->ioport
|= ((reg
& 0xff) << 8);
523 if (!mwifiex_read_reg(adapter
, card
->reg
->io_port_2_reg
, ®
))
524 adapter
->ioport
|= ((reg
& 0xff) << 16);
528 pr_debug("info: SDIO FUNC1 IO port: %#x\n", adapter
->ioport
);
530 /* Set Host interrupt reset to read to clear */
531 if (!mwifiex_read_reg(adapter
, card
->reg
->host_int_rsr_reg
, ®
))
532 mwifiex_write_reg(adapter
, card
->reg
->host_int_rsr_reg
,
533 reg
| card
->reg
->sdio_int_mask
);
537 /* Dnld/Upld ready set to auto reset */
538 if (!mwifiex_read_reg(adapter
, card
->reg
->card_misc_cfg_reg
, ®
))
539 mwifiex_write_reg(adapter
, card
->reg
->card_misc_cfg_reg
,
540 reg
| AUTO_RE_ENABLE_INT
);
548 * This function sends data to the card.
550 static int mwifiex_write_data_to_card(struct mwifiex_adapter
*adapter
,
551 u8
*payload
, u32 pkt_len
, u32 port
)
557 ret
= mwifiex_write_data_sync(adapter
, payload
, pkt_len
, port
);
560 dev_err(adapter
->dev
, "host_to_card, write iomem"
561 " (%d) failed: %d\n", i
, ret
);
562 if (mwifiex_write_reg(adapter
, CONFIGURATION_REG
, 0x04))
563 dev_err(adapter
->dev
, "write CFG reg failed\n");
566 if (i
> MAX_WRITE_IOMEM_RETRY
)
575 * This function gets the read port.
577 * If control port bit is set in MP read bitmap, the control port
578 * is returned, otherwise the current read port is returned and
579 * the value is increased (provided it does not reach the maximum
580 * limit, in which case it is reset to 1)
582 static int mwifiex_get_rd_port(struct mwifiex_adapter
*adapter
, u8
*port
)
584 struct sdio_mmc_card
*card
= adapter
->card
;
585 const struct mwifiex_sdio_card_reg
*reg
= card
->reg
;
586 u32 rd_bitmap
= card
->mp_rd_bitmap
;
588 dev_dbg(adapter
->dev
, "data: mp_rd_bitmap=0x%08x\n", rd_bitmap
);
590 if (card
->supports_sdio_new_mode
) {
591 if (!(rd_bitmap
& reg
->data_port_mask
))
594 if (!(rd_bitmap
& (CTRL_PORT_MASK
| reg
->data_port_mask
)))
598 if ((card
->has_control_mask
) &&
599 (card
->mp_rd_bitmap
& CTRL_PORT_MASK
)) {
600 card
->mp_rd_bitmap
&= (u32
) (~CTRL_PORT_MASK
);
602 dev_dbg(adapter
->dev
, "data: port=%d mp_rd_bitmap=0x%08x\n",
603 *port
, card
->mp_rd_bitmap
);
607 if (!(card
->mp_rd_bitmap
& (1 << card
->curr_rd_port
)))
610 /* We are now handling the SDIO data ports */
611 card
->mp_rd_bitmap
&= (u32
)(~(1 << card
->curr_rd_port
));
612 *port
= card
->curr_rd_port
;
614 if (++card
->curr_rd_port
== card
->max_ports
)
615 card
->curr_rd_port
= reg
->start_rd_port
;
617 dev_dbg(adapter
->dev
,
618 "data: port=%d mp_rd_bitmap=0x%08x -> 0x%08x\n",
619 *port
, rd_bitmap
, card
->mp_rd_bitmap
);
625 * This function gets the write port for data.
627 * The current write port is returned if available and the value is
628 * increased (provided it does not reach the maximum limit, in which
629 * case it is reset to 1)
631 static int mwifiex_get_wr_port_data(struct mwifiex_adapter
*adapter
, u32
*port
)
633 struct sdio_mmc_card
*card
= adapter
->card
;
634 const struct mwifiex_sdio_card_reg
*reg
= card
->reg
;
635 u32 wr_bitmap
= card
->mp_wr_bitmap
;
637 dev_dbg(adapter
->dev
, "data: mp_wr_bitmap=0x%08x\n", wr_bitmap
);
639 if (!(wr_bitmap
& card
->mp_data_port_mask
)) {
640 adapter
->data_sent
= true;
644 if (card
->mp_wr_bitmap
& (1 << card
->curr_wr_port
)) {
645 card
->mp_wr_bitmap
&= (u32
) (~(1 << card
->curr_wr_port
));
646 *port
= card
->curr_wr_port
;
647 if (++card
->curr_wr_port
== card
->mp_end_port
)
648 card
->curr_wr_port
= reg
->start_wr_port
;
650 adapter
->data_sent
= true;
654 if ((card
->has_control_mask
) && (*port
== CTRL_PORT
)) {
655 dev_err(adapter
->dev
,
656 "invalid data port=%d cur port=%d mp_wr_bitmap=0x%08x -> 0x%08x\n",
657 *port
, card
->curr_wr_port
, wr_bitmap
,
662 dev_dbg(adapter
->dev
, "data: port=%d mp_wr_bitmap=0x%08x -> 0x%08x\n",
663 *port
, wr_bitmap
, card
->mp_wr_bitmap
);
669 * This function polls the card status.
672 mwifiex_sdio_poll_card_status(struct mwifiex_adapter
*adapter
, u8 bits
)
674 struct sdio_mmc_card
*card
= adapter
->card
;
678 for (tries
= 0; tries
< MAX_POLL_TRIES
; tries
++) {
679 if (mwifiex_read_reg(adapter
, card
->reg
->poll_reg
, &cs
))
681 else if ((cs
& bits
) == bits
)
684 usleep_range(10, 20);
687 dev_err(adapter
->dev
, "poll card status failed, tries = %d\n", tries
);
693 * This function reads the firmware status.
696 mwifiex_sdio_read_fw_status(struct mwifiex_adapter
*adapter
, u16
*dat
)
698 struct sdio_mmc_card
*card
= adapter
->card
;
699 const struct mwifiex_sdio_card_reg
*reg
= card
->reg
;
702 if (mwifiex_read_reg(adapter
, reg
->status_reg_0
, &fws0
))
705 if (mwifiex_read_reg(adapter
, reg
->status_reg_1
, &fws1
))
708 *dat
= (u16
) ((fws1
<< 8) | fws0
);
714 * This function disables the host interrupt.
716 * The host interrupt mask is read, the disable bit is reset and
717 * written back to the card host interrupt mask register.
719 static void mwifiex_sdio_disable_host_int(struct mwifiex_adapter
*adapter
)
721 struct sdio_mmc_card
*card
= adapter
->card
;
722 struct sdio_func
*func
= card
->func
;
724 sdio_claim_host(func
);
725 mwifiex_write_reg_locked(func
, card
->reg
->host_int_mask_reg
, 0);
726 sdio_release_irq(func
);
727 sdio_release_host(func
);
731 * This function reads the interrupt status from card.
733 static void mwifiex_interrupt_status(struct mwifiex_adapter
*adapter
)
735 struct sdio_mmc_card
*card
= adapter
->card
;
739 if (mwifiex_read_data_sync(adapter
, card
->mp_regs
,
740 card
->reg
->max_mp_regs
,
741 REG_PORT
| MWIFIEX_SDIO_BYTE_MODE_MASK
, 0)) {
742 dev_err(adapter
->dev
, "read mp_regs failed\n");
746 sdio_ireg
= card
->mp_regs
[card
->reg
->host_int_status_reg
];
749 * DN_LD_HOST_INT_STATUS and/or UP_LD_HOST_INT_STATUS
750 * For SDIO new mode CMD port interrupts
751 * DN_LD_CMD_PORT_HOST_INT_STATUS and/or
752 * UP_LD_CMD_PORT_HOST_INT_STATUS
753 * Clear the interrupt status register
755 dev_dbg(adapter
->dev
, "int: sdio_ireg = %#x\n", sdio_ireg
);
756 spin_lock_irqsave(&adapter
->int_lock
, flags
);
757 adapter
->int_status
|= sdio_ireg
;
758 spin_unlock_irqrestore(&adapter
->int_lock
, flags
);
763 * SDIO interrupt handler.
765 * This function reads the interrupt status from firmware and handles
766 * the interrupt in current thread (ksdioirqd) right away.
769 mwifiex_sdio_interrupt(struct sdio_func
*func
)
771 struct mwifiex_adapter
*adapter
;
772 struct sdio_mmc_card
*card
;
774 card
= sdio_get_drvdata(func
);
775 if (!card
|| !card
->adapter
) {
776 pr_debug("int: func=%p card=%p adapter=%p\n",
777 func
, card
, card
? card
->adapter
: NULL
);
780 adapter
= card
->adapter
;
782 if (!adapter
->pps_uapsd_mode
&& adapter
->ps_state
== PS_STATE_SLEEP
)
783 adapter
->ps_state
= PS_STATE_AWAKE
;
785 mwifiex_interrupt_status(adapter
);
786 mwifiex_main_process(adapter
);
790 * This function enables the host interrupt.
792 * The host interrupt enable mask is written to the card
793 * host interrupt mask register.
795 static int mwifiex_sdio_enable_host_int(struct mwifiex_adapter
*adapter
)
797 struct sdio_mmc_card
*card
= adapter
->card
;
798 struct sdio_func
*func
= card
->func
;
801 sdio_claim_host(func
);
803 /* Request the SDIO IRQ */
804 ret
= sdio_claim_irq(func
, mwifiex_sdio_interrupt
);
806 dev_err(adapter
->dev
, "claim irq failed: ret=%d\n", ret
);
810 /* Simply write the mask to the register */
811 ret
= mwifiex_write_reg_locked(func
, card
->reg
->host_int_mask_reg
,
812 card
->reg
->host_int_enable
);
814 dev_err(adapter
->dev
, "enable host interrupt failed\n");
815 sdio_release_irq(func
);
819 sdio_release_host(func
);
824 * This function sends a data buffer to the card.
826 static int mwifiex_sdio_card_to_host(struct mwifiex_adapter
*adapter
,
827 u32
*type
, u8
*buffer
,
828 u32 npayload
, u32 ioport
)
834 dev_err(adapter
->dev
, "%s: buffer is NULL\n", __func__
);
838 ret
= mwifiex_read_data_sync(adapter
, buffer
, npayload
, ioport
, 1);
841 dev_err(adapter
->dev
, "%s: read iomem failed: %d\n", __func__
,
846 nb
= le16_to_cpu(*(__le16
*) (buffer
));
848 dev_err(adapter
->dev
, "%s: invalid packet, nb=%d npayload=%d\n",
849 __func__
, nb
, npayload
);
853 *type
= le16_to_cpu(*(__le16
*) (buffer
+ 2));
859 * This function downloads the firmware to the card.
861 * Firmware is downloaded to the card in blocks. Every block download
862 * is tested for CRC errors, and retried a number of times before
865 static int mwifiex_prog_fw_w_helper(struct mwifiex_adapter
*adapter
,
866 struct mwifiex_fw_image
*fw
)
868 struct sdio_mmc_card
*card
= adapter
->card
;
869 const struct mwifiex_sdio_card_reg
*reg
= card
->reg
;
871 u8
*firmware
= fw
->fw_buf
;
872 u32 firmware_len
= fw
->fw_len
;
877 u32 txlen
, tx_blocks
= 0, tries
;
881 dev_err(adapter
->dev
,
882 "firmware image not found! Terminating download\n");
886 dev_dbg(adapter
->dev
, "info: downloading FW image (%d bytes)\n",
889 /* Assume that the allocated buffer is 8-byte aligned */
890 fwbuf
= kzalloc(MWIFIEX_UPLD_SIZE
, GFP_KERNEL
);
894 /* Perform firmware data transfer */
896 /* The host polls for the DN_LD_CARD_RDY and CARD_IO_READY
898 ret
= mwifiex_sdio_poll_card_status(adapter
, CARD_IO_READY
|
901 dev_err(adapter
->dev
, "FW download with helper:"
902 " poll status timeout @ %d\n", offset
);
907 if (offset
>= firmware_len
)
910 for (tries
= 0; tries
< MAX_POLL_TRIES
; tries
++) {
911 ret
= mwifiex_read_reg(adapter
, reg
->base_0_reg
,
914 dev_err(adapter
->dev
,
915 "dev BASE0 register read failed: "
916 "base0=%#04X(%d). Terminating dnld\n",
920 ret
= mwifiex_read_reg(adapter
, reg
->base_1_reg
,
923 dev_err(adapter
->dev
,
924 "dev BASE1 register read failed: "
925 "base1=%#04X(%d). Terminating dnld\n",
929 len
= (u16
) (((base1
& 0xff) << 8) | (base0
& 0xff));
934 usleep_range(10, 20);
939 } else if (len
> MWIFIEX_UPLD_SIZE
) {
940 dev_err(adapter
->dev
,
941 "FW dnld failed @ %d, invalid length %d\n",
951 if (i
> MAX_WRITE_IOMEM_RETRY
) {
952 dev_err(adapter
->dev
,
953 "FW dnld failed @ %d, over max retry\n",
958 dev_err(adapter
->dev
, "CRC indicated by the helper:"
959 " len = 0x%04X, txlen = %d\n", len
, txlen
);
961 /* Setting this to 0 to resend from same offset */
966 /* Set blocksize to transfer - checking for last
968 if (firmware_len
- offset
< txlen
)
969 txlen
= firmware_len
- offset
;
971 tx_blocks
= (txlen
+ MWIFIEX_SDIO_BLOCK_SIZE
- 1)
972 / MWIFIEX_SDIO_BLOCK_SIZE
;
974 /* Copy payload to buffer */
975 memmove(fwbuf
, &firmware
[offset
], txlen
);
978 ret
= mwifiex_write_data_sync(adapter
, fwbuf
, tx_blocks
*
979 MWIFIEX_SDIO_BLOCK_SIZE
,
982 dev_err(adapter
->dev
,
983 "FW download, write iomem (%d) failed @ %d\n",
985 if (mwifiex_write_reg(adapter
, CONFIGURATION_REG
, 0x04))
986 dev_err(adapter
->dev
, "write CFG reg failed\n");
995 dev_notice(adapter
->dev
,
996 "info: FW download over, size %d bytes\n", offset
);
1005 * This function checks the firmware status in card.
1007 * The winner interface is also determined by this function.
1009 static int mwifiex_check_fw_status(struct mwifiex_adapter
*adapter
,
1012 struct sdio_mmc_card
*card
= adapter
->card
;
1018 /* Wait for firmware initialization event */
1019 for (tries
= 0; tries
< poll_num
; tries
++) {
1020 ret
= mwifiex_sdio_read_fw_status(adapter
, &firmware_stat
);
1023 if (firmware_stat
== FIRMWARE_READY_SDIO
) {
1033 if (mwifiex_read_reg
1034 (adapter
, card
->reg
->status_reg_0
, &winner_status
))
1038 adapter
->winner
= 0;
1040 adapter
->winner
= 1;
1046 * This function decode sdio aggreation pkt.
1048 * Based on the the data block size and pkt_len,
1049 * skb data will be decoded to few packets.
1051 static void mwifiex_deaggr_sdio_pkt(struct mwifiex_adapter
*adapter
,
1052 struct sk_buff
*skb
)
1054 u32 total_pkt_len
, pkt_len
;
1055 struct sk_buff
*skb_deaggr
;
1062 total_pkt_len
= skb
->len
;
1064 while (total_pkt_len
>= (SDIO_HEADER_OFFSET
+ INTF_HEADER_LEN
)) {
1065 if (total_pkt_len
< adapter
->sdio_rx_block_size
)
1067 blk_num
= *(data
+ BLOCK_NUMBER_OFFSET
);
1068 blk_size
= adapter
->sdio_rx_block_size
* blk_num
;
1069 if (blk_size
> total_pkt_len
) {
1070 dev_err(adapter
->dev
, "%s: error in pkt,\t"
1071 "blk_num=%d, blk_size=%d, total_pkt_len=%d\n",
1072 __func__
, blk_num
, blk_size
, total_pkt_len
);
1075 pkt_len
= le16_to_cpu(*(__le16
*)(data
+ SDIO_HEADER_OFFSET
));
1076 pkt_type
= le16_to_cpu(*(__le16
*)(data
+ SDIO_HEADER_OFFSET
+
1078 if ((pkt_len
+ SDIO_HEADER_OFFSET
) > blk_size
) {
1079 dev_err(adapter
->dev
, "%s: error in pkt,\t"
1080 "pkt_len=%d, blk_size=%d\n",
1081 __func__
, pkt_len
, blk_size
);
1084 skb_deaggr
= mwifiex_alloc_dma_align_buf(pkt_len
,
1085 GFP_KERNEL
| GFP_DMA
);
1088 skb_put(skb_deaggr
, pkt_len
);
1089 memcpy(skb_deaggr
->data
, data
+ SDIO_HEADER_OFFSET
, pkt_len
);
1090 skb_pull(skb_deaggr
, INTF_HEADER_LEN
);
1092 mwifiex_handle_rx_packet(adapter
, skb_deaggr
);
1094 total_pkt_len
-= blk_size
;
1099 * This function decodes a received packet.
1101 * Based on the type, the packet is treated as either a data, or
1102 * a command response, or an event, and the correct handler
1103 * function is invoked.
1105 static int mwifiex_decode_rx_packet(struct mwifiex_adapter
*adapter
,
1106 struct sk_buff
*skb
, u32 upld_typ
)
1109 __le16
*curr_ptr
= (__le16
*)skb
->data
;
1110 u16 pkt_len
= le16_to_cpu(*curr_ptr
);
1111 struct mwifiex_rxinfo
*rx_info
;
1113 if (upld_typ
!= MWIFIEX_TYPE_AGGR_DATA
) {
1114 skb_trim(skb
, pkt_len
);
1115 skb_pull(skb
, INTF_HEADER_LEN
);
1119 case MWIFIEX_TYPE_AGGR_DATA
:
1120 dev_dbg(adapter
->dev
, "info: --- Rx: Aggr Data packet ---\n");
1121 rx_info
= MWIFIEX_SKB_RXCB(skb
);
1122 rx_info
->buf_type
= MWIFIEX_TYPE_AGGR_DATA
;
1123 if (adapter
->rx_work_enabled
) {
1124 skb_queue_tail(&adapter
->rx_data_q
, skb
);
1125 atomic_inc(&adapter
->rx_pending
);
1126 adapter
->data_received
= true;
1128 mwifiex_deaggr_sdio_pkt(adapter
, skb
);
1129 dev_kfree_skb_any(skb
);
1133 case MWIFIEX_TYPE_DATA
:
1134 dev_dbg(adapter
->dev
, "info: --- Rx: Data packet ---\n");
1135 if (adapter
->rx_work_enabled
) {
1136 skb_queue_tail(&adapter
->rx_data_q
, skb
);
1137 adapter
->data_received
= true;
1138 atomic_inc(&adapter
->rx_pending
);
1140 mwifiex_handle_rx_packet(adapter
, skb
);
1144 case MWIFIEX_TYPE_CMD
:
1145 dev_dbg(adapter
->dev
, "info: --- Rx: Cmd Response ---\n");
1146 /* take care of curr_cmd = NULL case */
1147 if (!adapter
->curr_cmd
) {
1148 cmd_buf
= adapter
->upld_buf
;
1150 if (adapter
->ps_state
== PS_STATE_SLEEP_CFM
)
1151 mwifiex_process_sleep_confirm_resp(adapter
,
1155 memcpy(cmd_buf
, skb
->data
,
1156 min_t(u32
, MWIFIEX_SIZE_OF_CMD_BUFFER
,
1159 dev_kfree_skb_any(skb
);
1161 adapter
->cmd_resp_received
= true;
1162 adapter
->curr_cmd
->resp_skb
= skb
;
1166 case MWIFIEX_TYPE_EVENT
:
1167 dev_dbg(adapter
->dev
, "info: --- Rx: Event ---\n");
1168 adapter
->event_cause
= le32_to_cpu(*(__le32
*) skb
->data
);
1170 if ((skb
->len
> 0) && (skb
->len
< MAX_EVENT_SIZE
))
1171 memcpy(adapter
->event_body
,
1172 skb
->data
+ MWIFIEX_EVENT_HEADER_LEN
,
1175 /* event cause has been saved to adapter->event_cause */
1176 adapter
->event_received
= true;
1177 adapter
->event_skb
= skb
;
1182 dev_err(adapter
->dev
, "unknown upload type %#x\n", upld_typ
);
1183 dev_kfree_skb_any(skb
);
1191 * This function transfers received packets from card to driver, performing
1192 * aggregation if required.
1194 * For data received on control port, or if aggregation is disabled, the
1195 * received buffers are uploaded as separate packets. However, if aggregation
1196 * is enabled and required, the buffers are copied onto an aggregation buffer,
1197 * provided there is space left, processed and finally uploaded.
1199 static int mwifiex_sdio_card_to_host_mp_aggr(struct mwifiex_adapter
*adapter
,
1200 struct sk_buff
*skb
, u8 port
)
1202 struct sdio_mmc_card
*card
= adapter
->card
;
1203 s32 f_do_rx_aggr
= 0;
1204 s32 f_do_rx_cur
= 0;
1206 s32 f_post_aggr_cur
= 0;
1207 struct sk_buff
*skb_deaggr
;
1209 u32 pkt_len
, pkt_type
, mport
;
1211 u32 rx_len
= skb
->len
;
1213 if ((card
->has_control_mask
) && (port
== CTRL_PORT
)) {
1214 /* Read the command Resp without aggr */
1215 dev_dbg(adapter
->dev
, "info: %s: no aggregation for cmd "
1216 "response\n", __func__
);
1219 goto rx_curr_single
;
1222 if (!card
->mpa_rx
.enabled
) {
1223 dev_dbg(adapter
->dev
, "info: %s: rx aggregation disabled\n",
1227 goto rx_curr_single
;
1230 if ((!card
->has_control_mask
&& (card
->mp_rd_bitmap
&
1231 card
->reg
->data_port_mask
)) ||
1232 (card
->has_control_mask
&& (card
->mp_rd_bitmap
&
1233 (~((u32
) CTRL_PORT_MASK
))))) {
1234 /* Some more data RX pending */
1235 dev_dbg(adapter
->dev
, "info: %s: not last packet\n", __func__
);
1237 if (MP_RX_AGGR_IN_PROGRESS(card
)) {
1238 if (MP_RX_AGGR_BUF_HAS_ROOM(card
, skb
->len
)) {
1241 /* No room in Aggr buf, do rx aggr now */
1243 f_post_aggr_cur
= 1;
1246 /* Rx aggr not in progress */
1251 /* No more data RX pending */
1252 dev_dbg(adapter
->dev
, "info: %s: last packet\n", __func__
);
1254 if (MP_RX_AGGR_IN_PROGRESS(card
)) {
1256 if (MP_RX_AGGR_BUF_HAS_ROOM(card
, skb
->len
))
1259 /* No room in Aggr buf, do rx aggr now */
1267 dev_dbg(adapter
->dev
, "info: current packet aggregation\n");
1268 /* Curr pkt can be aggregated */
1269 mp_rx_aggr_setup(card
, skb
, port
);
1271 if (MP_RX_AGGR_PKT_LIMIT_REACHED(card
) ||
1272 mp_rx_aggr_port_limit_reached(card
)) {
1273 dev_dbg(adapter
->dev
, "info: %s: aggregated packet "
1274 "limit reached\n", __func__
);
1275 /* No more pkts allowed in Aggr buf, rx it */
1281 /* do aggr RX now */
1282 dev_dbg(adapter
->dev
, "info: do_rx_aggr: num of packets: %d\n",
1283 card
->mpa_rx
.pkt_cnt
);
1285 if (card
->supports_sdio_new_mode
) {
1289 for (i
= 0, port_count
= 0; i
< card
->max_ports
; i
++)
1290 if (card
->mpa_rx
.ports
& BIT(i
))
1293 /* Reading data from "start_port + 0" to "start_port +
1294 * port_count -1", so decrease the count by 1
1297 mport
= (adapter
->ioport
| SDIO_MPA_ADDR_BASE
|
1298 (port_count
<< 8)) + card
->mpa_rx
.start_port
;
1300 mport
= (adapter
->ioport
| SDIO_MPA_ADDR_BASE
|
1301 (card
->mpa_rx
.ports
<< 4)) +
1302 card
->mpa_rx
.start_port
;
1305 if (mwifiex_read_data_sync(adapter
, card
->mpa_rx
.buf
,
1306 card
->mpa_rx
.buf_len
, mport
, 1))
1309 curr_ptr
= card
->mpa_rx
.buf
;
1311 for (pind
= 0; pind
< card
->mpa_rx
.pkt_cnt
; pind
++) {
1313 /* get curr PKT len & type */
1314 pkt_len
= le16_to_cpu(*(__le16
*) &curr_ptr
[0]);
1315 pkt_type
= le16_to_cpu(*(__le16
*) &curr_ptr
[2]);
1317 /* copy pkt to deaggr buf */
1318 skb_deaggr
= card
->mpa_rx
.skb_arr
[pind
];
1320 if ((pkt_type
== MWIFIEX_TYPE_DATA
||
1321 (pkt_type
== MWIFIEX_TYPE_AGGR_DATA
&&
1322 adapter
->sdio_rx_aggr_enable
)) &&
1323 (pkt_len
<= card
->mpa_rx
.len_arr
[pind
])) {
1325 memcpy(skb_deaggr
->data
, curr_ptr
, pkt_len
);
1327 skb_trim(skb_deaggr
, pkt_len
);
1329 /* Process de-aggr packet */
1330 mwifiex_decode_rx_packet(adapter
, skb_deaggr
,
1333 dev_err(adapter
->dev
, "wrong aggr pkt:\t"
1334 "sdio_single_port_rx_aggr=%d\t"
1335 "type=%d len=%d max_len=%d\n",
1336 adapter
->sdio_rx_aggr_enable
,
1338 card
->mpa_rx
.len_arr
[pind
]);
1339 dev_kfree_skb_any(skb_deaggr
);
1341 curr_ptr
+= card
->mpa_rx
.len_arr
[pind
];
1343 MP_RX_AGGR_BUF_RESET(card
);
1348 dev_dbg(adapter
->dev
, "info: RX: port: %d, rx_len: %d\n",
1351 if (mwifiex_sdio_card_to_host(adapter
, &pkt_type
,
1352 skb
->data
, skb
->len
,
1353 adapter
->ioport
+ port
))
1355 if (!adapter
->sdio_rx_aggr_enable
&&
1356 pkt_type
== MWIFIEX_TYPE_AGGR_DATA
) {
1357 dev_err(adapter
->dev
, "Wrong pkt type %d\t"
1358 "Current SDIO RX Aggr not enabled\n",
1363 mwifiex_decode_rx_packet(adapter
, skb
, pkt_type
);
1365 if (f_post_aggr_cur
) {
1366 dev_dbg(adapter
->dev
, "info: current packet aggregation\n");
1367 /* Curr pkt can be aggregated */
1368 mp_rx_aggr_setup(card
, skb
, port
);
1373 if (MP_RX_AGGR_IN_PROGRESS(card
)) {
1374 /* Multiport-aggregation transfer failed - cleanup */
1375 for (pind
= 0; pind
< card
->mpa_rx
.pkt_cnt
; pind
++) {
1376 /* copy pkt to deaggr buf */
1377 skb_deaggr
= card
->mpa_rx
.skb_arr
[pind
];
1378 dev_kfree_skb_any(skb_deaggr
);
1380 MP_RX_AGGR_BUF_RESET(card
);
1384 /* Single transfer pending. Free curr buff also */
1385 dev_kfree_skb_any(skb
);
1391 * This function checks the current interrupt status.
1393 * The following interrupts are checked and handled by this function -
1396 * - Packets received
1398 * Since the firmware does not generate download ready interrupt if the
1399 * port updated is command port only, command sent interrupt checking
1400 * should be done manually, and for every SDIO interrupt.
1402 * In case of Rx packets received, the packets are uploaded from card to
1403 * host and processed accordingly.
1405 static int mwifiex_process_int_status(struct mwifiex_adapter
*adapter
)
1407 struct sdio_mmc_card
*card
= adapter
->card
;
1408 const struct mwifiex_sdio_card_reg
*reg
= card
->reg
;
1411 struct sk_buff
*skb
;
1412 u8 port
= CTRL_PORT
;
1413 u32 len_reg_l
, len_reg_u
;
1416 unsigned long flags
;
1420 spin_lock_irqsave(&adapter
->int_lock
, flags
);
1421 sdio_ireg
= adapter
->int_status
;
1422 adapter
->int_status
= 0;
1423 spin_unlock_irqrestore(&adapter
->int_lock
, flags
);
1428 /* Following interrupt is only for SDIO new mode */
1429 if (sdio_ireg
& DN_LD_CMD_PORT_HOST_INT_STATUS
&& adapter
->cmd_sent
)
1430 adapter
->cmd_sent
= false;
1432 /* Following interrupt is only for SDIO new mode */
1433 if (sdio_ireg
& UP_LD_CMD_PORT_HOST_INT_STATUS
) {
1436 /* read the len of control packet */
1437 rx_len
= card
->mp_regs
[reg
->cmd_rd_len_1
] << 8;
1438 rx_len
|= (u16
)card
->mp_regs
[reg
->cmd_rd_len_0
];
1439 rx_blocks
= DIV_ROUND_UP(rx_len
, MWIFIEX_SDIO_BLOCK_SIZE
);
1440 if (rx_len
<= INTF_HEADER_LEN
||
1441 (rx_blocks
* MWIFIEX_SDIO_BLOCK_SIZE
) >
1442 MWIFIEX_RX_DATA_BUF_SIZE
)
1444 rx_len
= (u16
) (rx_blocks
* MWIFIEX_SDIO_BLOCK_SIZE
);
1446 skb
= mwifiex_alloc_dma_align_buf(rx_len
, GFP_KERNEL
| GFP_DMA
);
1450 skb_put(skb
, rx_len
);
1452 if (mwifiex_sdio_card_to_host(adapter
, &pkt_type
, skb
->data
,
1453 skb
->len
, adapter
->ioport
|
1455 dev_err(adapter
->dev
,
1456 "%s: failed to card_to_host", __func__
);
1457 dev_kfree_skb_any(skb
);
1461 if ((pkt_type
!= MWIFIEX_TYPE_CMD
) &&
1462 (pkt_type
!= MWIFIEX_TYPE_EVENT
))
1463 dev_err(adapter
->dev
,
1464 "%s:Received wrong packet on cmd port",
1467 mwifiex_decode_rx_packet(adapter
, skb
, pkt_type
);
1470 if (sdio_ireg
& DN_LD_HOST_INT_STATUS
) {
1471 bitmap
= (u32
) card
->mp_regs
[reg
->wr_bitmap_l
];
1472 bitmap
|= ((u32
) card
->mp_regs
[reg
->wr_bitmap_u
]) << 8;
1473 if (card
->supports_sdio_new_mode
) {
1475 ((u32
) card
->mp_regs
[reg
->wr_bitmap_1l
]) << 16;
1477 ((u32
) card
->mp_regs
[reg
->wr_bitmap_1u
]) << 24;
1479 card
->mp_wr_bitmap
= bitmap
;
1481 dev_dbg(adapter
->dev
, "int: DNLD: wr_bitmap=0x%x\n",
1482 card
->mp_wr_bitmap
);
1483 if (adapter
->data_sent
&&
1484 (card
->mp_wr_bitmap
& card
->mp_data_port_mask
)) {
1485 dev_dbg(adapter
->dev
,
1486 "info: <--- Tx DONE Interrupt --->\n");
1487 adapter
->data_sent
= false;
1491 /* As firmware will not generate download ready interrupt if the port
1492 updated is command port only, cmd_sent should be done for any SDIO
1494 if (card
->has_control_mask
&& adapter
->cmd_sent
) {
1495 /* Check if firmware has attach buffer at command port and
1496 update just that in wr_bit_map. */
1497 card
->mp_wr_bitmap
|=
1498 (u32
) card
->mp_regs
[reg
->wr_bitmap_l
] & CTRL_PORT_MASK
;
1499 if (card
->mp_wr_bitmap
& CTRL_PORT_MASK
)
1500 adapter
->cmd_sent
= false;
1503 dev_dbg(adapter
->dev
, "info: cmd_sent=%d data_sent=%d\n",
1504 adapter
->cmd_sent
, adapter
->data_sent
);
1505 if (sdio_ireg
& UP_LD_HOST_INT_STATUS
) {
1506 bitmap
= (u32
) card
->mp_regs
[reg
->rd_bitmap_l
];
1507 bitmap
|= ((u32
) card
->mp_regs
[reg
->rd_bitmap_u
]) << 8;
1508 if (card
->supports_sdio_new_mode
) {
1510 ((u32
) card
->mp_regs
[reg
->rd_bitmap_1l
]) << 16;
1512 ((u32
) card
->mp_regs
[reg
->rd_bitmap_1u
]) << 24;
1514 card
->mp_rd_bitmap
= bitmap
;
1515 dev_dbg(adapter
->dev
, "int: UPLD: rd_bitmap=0x%x\n",
1516 card
->mp_rd_bitmap
);
1519 ret
= mwifiex_get_rd_port(adapter
, &port
);
1521 dev_dbg(adapter
->dev
,
1522 "info: no more rd_port available\n");
1525 len_reg_l
= reg
->rd_len_p0_l
+ (port
<< 1);
1526 len_reg_u
= reg
->rd_len_p0_u
+ (port
<< 1);
1527 rx_len
= ((u16
) card
->mp_regs
[len_reg_u
]) << 8;
1528 rx_len
|= (u16
) card
->mp_regs
[len_reg_l
];
1529 dev_dbg(adapter
->dev
, "info: RX: port=%d rx_len=%u\n",
1532 (rx_len
+ MWIFIEX_SDIO_BLOCK_SIZE
-
1533 1) / MWIFIEX_SDIO_BLOCK_SIZE
;
1534 if (rx_len
<= INTF_HEADER_LEN
||
1535 (rx_blocks
* MWIFIEX_SDIO_BLOCK_SIZE
) >
1536 card
->mpa_rx
.buf_size
) {
1537 dev_err(adapter
->dev
, "invalid rx_len=%d\n",
1541 rx_len
= (u16
) (rx_blocks
* MWIFIEX_SDIO_BLOCK_SIZE
);
1543 skb
= mwifiex_alloc_dma_align_buf(rx_len
,
1548 dev_err(adapter
->dev
, "%s: failed to alloc skb",
1553 skb_put(skb
, rx_len
);
1555 dev_dbg(adapter
->dev
, "info: rx_len = %d skb->len = %d\n",
1558 if (mwifiex_sdio_card_to_host_mp_aggr(adapter
, skb
,
1560 dev_err(adapter
->dev
, "card_to_host_mpa failed:"
1561 " int status=%#x\n", sdio_ireg
);
1571 if (mwifiex_read_reg(adapter
, CONFIGURATION_REG
, &cr
))
1572 dev_err(adapter
->dev
, "read CFG reg failed\n");
1574 dev_dbg(adapter
->dev
, "info: CFG reg val = %d\n", cr
);
1576 if (mwifiex_write_reg(adapter
, CONFIGURATION_REG
, (cr
| 0x04)))
1577 dev_err(adapter
->dev
, "write CFG reg failed\n");
1579 dev_dbg(adapter
->dev
, "info: write success\n");
1581 if (mwifiex_read_reg(adapter
, CONFIGURATION_REG
, &cr
))
1582 dev_err(adapter
->dev
, "read CFG reg failed\n");
1584 dev_dbg(adapter
->dev
, "info: CFG reg val =%x\n", cr
);
1590 * This function aggregates transmission buffers in driver and downloads
1591 * the aggregated packet to card.
1593 * The individual packets are aggregated by copying into an aggregation
1594 * buffer and then downloaded to the card. Previous unsent packets in the
1595 * aggregation buffer are pre-copied first before new packets are added.
1596 * Aggregation is done till there is space left in the aggregation buffer,
1597 * or till new packets are available.
1599 * The function will only download the packet to the card when aggregation
1600 * stops, otherwise it will just aggregate the packet in aggregation buffer
1603 static int mwifiex_host_to_card_mp_aggr(struct mwifiex_adapter
*adapter
,
1604 u8
*payload
, u32 pkt_len
, u32 port
,
1607 struct sdio_mmc_card
*card
= adapter
->card
;
1609 s32 f_send_aggr_buf
= 0;
1610 s32 f_send_cur_buf
= 0;
1611 s32 f_precopy_cur_buf
= 0;
1612 s32 f_postcopy_cur_buf
= 0;
1615 if (!card
->mpa_tx
.enabled
||
1616 (card
->has_control_mask
&& (port
== CTRL_PORT
)) ||
1617 (card
->supports_sdio_new_mode
&& (port
== CMD_PORT_SLCT
))) {
1618 dev_dbg(adapter
->dev
, "info: %s: tx aggregation disabled\n",
1622 goto tx_curr_single
;
1626 /* More pkt in TX queue */
1627 dev_dbg(adapter
->dev
, "info: %s: more packets in queue.\n",
1630 if (MP_TX_AGGR_IN_PROGRESS(card
)) {
1631 if (MP_TX_AGGR_BUF_HAS_ROOM(card
, pkt_len
)) {
1632 f_precopy_cur_buf
= 1;
1634 if (!(card
->mp_wr_bitmap
&
1635 (1 << card
->curr_wr_port
)) ||
1636 !MP_TX_AGGR_BUF_HAS_ROOM(
1637 card
, pkt_len
+ next_pkt_len
))
1638 f_send_aggr_buf
= 1;
1640 /* No room in Aggr buf, send it */
1641 f_send_aggr_buf
= 1;
1643 if (!(card
->mp_wr_bitmap
&
1644 (1 << card
->curr_wr_port
)))
1647 f_postcopy_cur_buf
= 1;
1650 if (MP_TX_AGGR_BUF_HAS_ROOM(card
, pkt_len
) &&
1651 (card
->mp_wr_bitmap
& (1 << card
->curr_wr_port
)))
1652 f_precopy_cur_buf
= 1;
1657 /* Last pkt in TX queue */
1658 dev_dbg(adapter
->dev
, "info: %s: Last packet in Tx Queue.\n",
1661 if (MP_TX_AGGR_IN_PROGRESS(card
)) {
1662 /* some packs in Aggr buf already */
1663 f_send_aggr_buf
= 1;
1665 if (MP_TX_AGGR_BUF_HAS_ROOM(card
, pkt_len
))
1666 f_precopy_cur_buf
= 1;
1668 /* No room in Aggr buf, send it */
1675 if (f_precopy_cur_buf
) {
1676 dev_dbg(adapter
->dev
, "data: %s: precopy current buffer\n",
1678 MP_TX_AGGR_BUF_PUT(card
, payload
, pkt_len
, port
);
1680 if (MP_TX_AGGR_PKT_LIMIT_REACHED(card
) ||
1681 mp_tx_aggr_port_limit_reached(card
))
1682 /* No more pkts allowed in Aggr buf, send it */
1683 f_send_aggr_buf
= 1;
1686 if (f_send_aggr_buf
) {
1687 dev_dbg(adapter
->dev
, "data: %s: send aggr buffer: %d %d\n",
1689 card
->mpa_tx
.start_port
, card
->mpa_tx
.ports
);
1690 if (card
->supports_sdio_new_mode
) {
1694 for (i
= 0, port_count
= 0; i
< card
->max_ports
; i
++)
1695 if (card
->mpa_tx
.ports
& BIT(i
))
1698 /* Writing data from "start_port + 0" to "start_port +
1699 * port_count -1", so decrease the count by 1
1702 mport
= (adapter
->ioport
| SDIO_MPA_ADDR_BASE
|
1703 (port_count
<< 8)) + card
->mpa_tx
.start_port
;
1705 mport
= (adapter
->ioport
| SDIO_MPA_ADDR_BASE
|
1706 (card
->mpa_tx
.ports
<< 4)) +
1707 card
->mpa_tx
.start_port
;
1710 ret
= mwifiex_write_data_to_card(adapter
, card
->mpa_tx
.buf
,
1711 card
->mpa_tx
.buf_len
, mport
);
1713 MP_TX_AGGR_BUF_RESET(card
);
1717 if (f_send_cur_buf
) {
1718 dev_dbg(adapter
->dev
, "data: %s: send current buffer %d\n",
1720 ret
= mwifiex_write_data_to_card(adapter
, payload
, pkt_len
,
1721 adapter
->ioport
+ port
);
1724 if (f_postcopy_cur_buf
) {
1725 dev_dbg(adapter
->dev
, "data: %s: postcopy current buffer\n",
1727 MP_TX_AGGR_BUF_PUT(card
, payload
, pkt_len
, port
);
1734 * This function downloads data from driver to card.
1736 * Both commands and data packets are transferred to the card by this
1739 * This function adds the SDIO specific header to the front of the buffer
1740 * before transferring. The header contains the length of the packet and
1741 * the type. The firmware handles the packets based upon this set type.
1743 static int mwifiex_sdio_host_to_card(struct mwifiex_adapter
*adapter
,
1744 u8 type
, struct sk_buff
*skb
,
1745 struct mwifiex_tx_param
*tx_param
)
1747 struct sdio_mmc_card
*card
= adapter
->card
;
1751 u32 port
= CTRL_PORT
;
1752 u8
*payload
= (u8
*)skb
->data
;
1753 u32 pkt_len
= skb
->len
;
1755 /* Allocate buffer and copy payload */
1756 blk_size
= MWIFIEX_SDIO_BLOCK_SIZE
;
1757 buf_block_len
= (pkt_len
+ blk_size
- 1) / blk_size
;
1758 *(__le16
*)&payload
[0] = cpu_to_le16((u16
)pkt_len
);
1759 *(__le16
*)&payload
[2] = cpu_to_le16(type
);
1762 * This is SDIO specific header
1764 * u16 type (MWIFIEX_TYPE_DATA = 0, MWIFIEX_TYPE_CMD = 1,
1765 * MWIFIEX_TYPE_EVENT = 3)
1767 if (type
== MWIFIEX_TYPE_DATA
) {
1768 ret
= mwifiex_get_wr_port_data(adapter
, &port
);
1770 dev_err(adapter
->dev
, "%s: no wr_port available\n",
1775 adapter
->cmd_sent
= true;
1776 /* Type must be MWIFIEX_TYPE_CMD */
1778 if (pkt_len
<= INTF_HEADER_LEN
||
1779 pkt_len
> MWIFIEX_UPLD_SIZE
)
1780 dev_err(adapter
->dev
, "%s: payload=%p, nb=%d\n",
1781 __func__
, payload
, pkt_len
);
1783 if (card
->supports_sdio_new_mode
)
1784 port
= CMD_PORT_SLCT
;
1787 /* Transfer data to card */
1788 pkt_len
= buf_block_len
* blk_size
;
1791 ret
= mwifiex_host_to_card_mp_aggr(adapter
, payload
, pkt_len
,
1792 port
, tx_param
->next_pkt_len
1795 ret
= mwifiex_host_to_card_mp_aggr(adapter
, payload
, pkt_len
,
1799 if (type
== MWIFIEX_TYPE_CMD
)
1800 adapter
->cmd_sent
= false;
1801 if (type
== MWIFIEX_TYPE_DATA
) {
1802 adapter
->data_sent
= false;
1803 /* restore curr_wr_port in error cases */
1804 card
->curr_wr_port
= port
;
1805 card
->mp_wr_bitmap
|= (u32
)(1 << card
->curr_wr_port
);
1808 if (type
== MWIFIEX_TYPE_DATA
) {
1809 if (!(card
->mp_wr_bitmap
& (1 << card
->curr_wr_port
)))
1810 adapter
->data_sent
= true;
1812 adapter
->data_sent
= false;
1820 * This function allocates the MPA Tx and Rx buffers.
1822 static int mwifiex_alloc_sdio_mpa_buffers(struct mwifiex_adapter
*adapter
,
1823 u32 mpa_tx_buf_size
, u32 mpa_rx_buf_size
)
1825 struct sdio_mmc_card
*card
= adapter
->card
;
1829 card
->mpa_tx
.buf
= kzalloc(mpa_tx_buf_size
, GFP_KERNEL
);
1830 if (!card
->mpa_tx
.buf
) {
1835 card
->mpa_tx
.buf_size
= mpa_tx_buf_size
;
1837 rx_buf_size
= max_t(u32
, mpa_rx_buf_size
,
1838 (u32
)SDIO_MAX_AGGR_BUF_SIZE
);
1839 card
->mpa_rx
.buf
= kzalloc(rx_buf_size
, GFP_KERNEL
);
1840 if (!card
->mpa_rx
.buf
) {
1845 card
->mpa_rx
.buf_size
= rx_buf_size
;
1849 kfree(card
->mpa_tx
.buf
);
1850 kfree(card
->mpa_rx
.buf
);
1857 * This function unregisters the SDIO device.
1859 * The SDIO IRQ is released, the function is disabled and driver
1860 * data is set to null.
1863 mwifiex_unregister_dev(struct mwifiex_adapter
*adapter
)
1865 struct sdio_mmc_card
*card
= adapter
->card
;
1867 if (adapter
->card
) {
1868 sdio_claim_host(card
->func
);
1869 sdio_disable_func(card
->func
);
1870 sdio_release_host(card
->func
);
1875 * This function registers the SDIO device.
1877 * SDIO IRQ is claimed, block size is set and driver data is initialized.
1879 static int mwifiex_register_dev(struct mwifiex_adapter
*adapter
)
1882 struct sdio_mmc_card
*card
= adapter
->card
;
1883 struct sdio_func
*func
= card
->func
;
1885 /* save adapter pointer in card */
1886 card
->adapter
= adapter
;
1887 adapter
->tx_buf_size
= card
->tx_buf_size
;
1889 sdio_claim_host(func
);
1891 /* Set block size */
1892 ret
= sdio_set_block_size(card
->func
, MWIFIEX_SDIO_BLOCK_SIZE
);
1893 sdio_release_host(func
);
1895 pr_err("cannot set SDIO block size\n");
1900 adapter
->dev
= &func
->dev
;
1902 strcpy(adapter
->fw_name
, card
->firmware
);
1903 adapter
->mem_type_mapping_tbl
= mem_type_mapping_tbl
;
1904 adapter
->num_mem_types
= ARRAY_SIZE(mem_type_mapping_tbl
);
1910 * This function initializes the SDIO driver.
1912 * The following initializations steps are followed -
1913 * - Read the Host interrupt status register to acknowledge
1914 * the first interrupt got from bootloader
1915 * - Disable host interrupt mask register
1917 * - Initialize SDIO variables in card
1918 * - Allocate MP registers
1919 * - Allocate MPA Tx and Rx buffers
1921 static int mwifiex_init_sdio(struct mwifiex_adapter
*adapter
)
1923 struct sdio_mmc_card
*card
= adapter
->card
;
1924 const struct mwifiex_sdio_card_reg
*reg
= card
->reg
;
1928 sdio_set_drvdata(card
->func
, card
);
1931 * Read the host_int_status_reg for ACK the first interrupt got
1932 * from the bootloader. If we don't do this we get a interrupt
1933 * as soon as we register the irq.
1935 mwifiex_read_reg(adapter
, card
->reg
->host_int_status_reg
, &sdio_ireg
);
1937 /* Get SDIO ioport */
1938 mwifiex_init_sdio_ioport(adapter
);
1940 /* Initialize SDIO variables in card */
1941 card
->mp_rd_bitmap
= 0;
1942 card
->mp_wr_bitmap
= 0;
1943 card
->curr_rd_port
= reg
->start_rd_port
;
1944 card
->curr_wr_port
= reg
->start_wr_port
;
1946 card
->mp_data_port_mask
= reg
->data_port_mask
;
1948 card
->mpa_tx
.buf_len
= 0;
1949 card
->mpa_tx
.pkt_cnt
= 0;
1950 card
->mpa_tx
.start_port
= 0;
1952 card
->mpa_tx
.enabled
= 1;
1953 card
->mpa_tx
.pkt_aggr_limit
= card
->mp_agg_pkt_limit
;
1955 card
->mpa_rx
.buf_len
= 0;
1956 card
->mpa_rx
.pkt_cnt
= 0;
1957 card
->mpa_rx
.start_port
= 0;
1959 card
->mpa_rx
.enabled
= 1;
1960 card
->mpa_rx
.pkt_aggr_limit
= card
->mp_agg_pkt_limit
;
1962 /* Allocate buffers for SDIO MP-A */
1963 card
->mp_regs
= kzalloc(reg
->max_mp_regs
, GFP_KERNEL
);
1967 /* Allocate skb pointer buffers */
1968 card
->mpa_rx
.skb_arr
= kzalloc((sizeof(void *)) *
1969 card
->mp_agg_pkt_limit
, GFP_KERNEL
);
1970 card
->mpa_rx
.len_arr
= kzalloc(sizeof(*card
->mpa_rx
.len_arr
) *
1971 card
->mp_agg_pkt_limit
, GFP_KERNEL
);
1972 ret
= mwifiex_alloc_sdio_mpa_buffers(adapter
,
1973 card
->mp_tx_agg_buf_size
,
1974 card
->mp_rx_agg_buf_size
);
1976 dev_err(adapter
->dev
, "failed to alloc sdio mp-a buffers\n");
1977 kfree(card
->mp_regs
);
1981 adapter
->auto_tdls
= card
->can_auto_tdls
;
1982 adapter
->ext_scan
= card
->can_ext_scan
;
1987 * This function resets the MPA Tx and Rx buffers.
1989 static void mwifiex_cleanup_mpa_buf(struct mwifiex_adapter
*adapter
)
1991 struct sdio_mmc_card
*card
= adapter
->card
;
1993 MP_TX_AGGR_BUF_RESET(card
);
1994 MP_RX_AGGR_BUF_RESET(card
);
1998 * This function cleans up the allocated card buffers.
2000 * The following are freed by this function -
2005 static void mwifiex_cleanup_sdio(struct mwifiex_adapter
*adapter
)
2007 struct sdio_mmc_card
*card
= adapter
->card
;
2009 kfree(card
->mp_regs
);
2010 kfree(card
->mpa_rx
.skb_arr
);
2011 kfree(card
->mpa_rx
.len_arr
);
2012 kfree(card
->mpa_tx
.buf
);
2013 kfree(card
->mpa_rx
.buf
);
2014 sdio_set_drvdata(card
->func
, NULL
);
2019 * This function updates the MP end port in card.
2022 mwifiex_update_mp_end_port(struct mwifiex_adapter
*adapter
, u16 port
)
2024 struct sdio_mmc_card
*card
= adapter
->card
;
2025 const struct mwifiex_sdio_card_reg
*reg
= card
->reg
;
2028 card
->mp_end_port
= port
;
2030 card
->mp_data_port_mask
= reg
->data_port_mask
;
2032 if (reg
->start_wr_port
) {
2033 for (i
= 1; i
<= card
->max_ports
- card
->mp_end_port
; i
++)
2034 card
->mp_data_port_mask
&=
2035 ~(1 << (card
->max_ports
- i
));
2038 card
->curr_wr_port
= reg
->start_wr_port
;
2040 dev_dbg(adapter
->dev
, "cmd: mp_end_port %d, data port mask 0x%x\n",
2041 port
, card
->mp_data_port_mask
);
2044 static void mwifiex_sdio_card_reset_work(struct mwifiex_adapter
*adapter
)
2046 struct sdio_mmc_card
*card
= adapter
->card
;
2047 struct mmc_host
*target
= card
->func
->card
->host
;
2049 /* The actual reset operation must be run outside of driver thread.
2050 * This is because mmc_remove_host() will cause the device to be
2051 * instantly destroyed, and the driver then needs to end its thread,
2052 * leading to a deadlock.
2054 * We run it in a totally independent workqueue.
2057 pr_err("Resetting card...\n");
2058 mmc_remove_host(target
);
2059 /* 200ms delay is based on experiment with sdhci controller */
2061 target
->rescan_entered
= 0; /* rescan non-removable cards */
2062 mmc_add_host(target
);
2065 /* This function read/write firmware */
2067 rdwr_status
mwifiex_sdio_rdwr_firmware(struct mwifiex_adapter
*adapter
,
2070 struct sdio_mmc_card
*card
= adapter
->card
;
2074 sdio_writeb(card
->func
, FW_DUMP_HOST_READY
, card
->reg
->fw_dump_ctrl
,
2077 dev_err(adapter
->dev
, "SDIO Write ERR\n");
2078 return RDWR_STATUS_FAILURE
;
2080 for (tries
= 0; tries
< MAX_POLL_TRIES
; tries
++) {
2081 ctrl_data
= sdio_readb(card
->func
, card
->reg
->fw_dump_ctrl
,
2084 dev_err(adapter
->dev
, "SDIO read err\n");
2085 return RDWR_STATUS_FAILURE
;
2087 if (ctrl_data
== FW_DUMP_DONE
)
2089 if (doneflag
&& ctrl_data
== doneflag
)
2090 return RDWR_STATUS_DONE
;
2091 if (ctrl_data
!= FW_DUMP_HOST_READY
) {
2092 dev_info(adapter
->dev
,
2093 "The ctrl reg was changed, re-try again!\n");
2094 sdio_writeb(card
->func
, FW_DUMP_HOST_READY
,
2095 card
->reg
->fw_dump_ctrl
, &ret
);
2097 dev_err(adapter
->dev
, "SDIO write err\n");
2098 return RDWR_STATUS_FAILURE
;
2101 usleep_range(100, 200);
2103 if (ctrl_data
== FW_DUMP_HOST_READY
) {
2104 dev_err(adapter
->dev
, "Fail to pull ctrl_data\n");
2105 return RDWR_STATUS_FAILURE
;
2108 return RDWR_STATUS_SUCCESS
;
2111 /* This function dump firmware memory to file */
2112 static void mwifiex_sdio_fw_dump_work(struct work_struct
*work
)
2114 struct mwifiex_adapter
*adapter
=
2115 container_of(work
, struct mwifiex_adapter
, iface_work
);
2116 struct sdio_mmc_card
*card
= adapter
->card
;
2118 unsigned int reg
, reg_start
, reg_end
;
2119 u8
*dbg_ptr
, *end_ptr
, dump_num
, idx
, i
, read_reg
, doneflag
= 0;
2120 enum rdwr_status stat
;
2122 static char *env
[] = { "DRIVER=mwifiex_sdio", "EVENT=fw_dump", NULL
};
2124 mwifiex_dump_drv_info(adapter
);
2126 if (!card
->can_dump_fw
)
2129 for (idx
= 0; idx
< ARRAY_SIZE(mem_type_mapping_tbl
); idx
++) {
2130 struct memory_type_mapping
*entry
= &mem_type_mapping_tbl
[idx
];
2132 if (entry
->mem_ptr
) {
2133 vfree(entry
->mem_ptr
);
2134 entry
->mem_ptr
= NULL
;
2136 entry
->mem_size
= 0;
2139 mwifiex_pm_wakeup_card(adapter
);
2140 sdio_claim_host(card
->func
);
2142 dev_info(adapter
->dev
, "== mwifiex firmware dump start ==\n");
2144 stat
= mwifiex_sdio_rdwr_firmware(adapter
, doneflag
);
2145 if (stat
== RDWR_STATUS_FAILURE
)
2148 reg
= card
->reg
->fw_dump_start
;
2149 /* Read the number of the memories which will dump */
2150 dump_num
= sdio_readb(card
->func
, reg
, &ret
);
2152 dev_err(adapter
->dev
, "SDIO read memory length err\n");
2156 /* Read the length of every memory which will dump */
2157 for (idx
= 0; idx
< dump_num
; idx
++) {
2158 struct memory_type_mapping
*entry
= &mem_type_mapping_tbl
[idx
];
2160 stat
= mwifiex_sdio_rdwr_firmware(adapter
, doneflag
);
2161 if (stat
== RDWR_STATUS_FAILURE
)
2165 reg
= card
->reg
->fw_dump_start
;
2166 for (i
= 0; i
< 4; i
++) {
2167 read_reg
= sdio_readb(card
->func
, reg
, &ret
);
2169 dev_err(adapter
->dev
, "SDIO read err\n");
2172 memory_size
|= (read_reg
<< i
*8);
2176 if (memory_size
== 0) {
2177 dev_info(adapter
->dev
, "Firmware dump Finished!\n");
2181 dev_info(adapter
->dev
,
2182 "%s_SIZE=0x%x\n", entry
->mem_name
, memory_size
);
2183 entry
->mem_ptr
= vmalloc(memory_size
+ 1);
2184 entry
->mem_size
= memory_size
;
2185 if (!entry
->mem_ptr
) {
2186 dev_err(adapter
->dev
, "Vmalloc %s failed\n",
2190 dbg_ptr
= entry
->mem_ptr
;
2191 end_ptr
= dbg_ptr
+ memory_size
;
2193 doneflag
= entry
->done_flag
;
2194 dev_info(adapter
->dev
, "Start %s output, please wait...\n",
2198 stat
= mwifiex_sdio_rdwr_firmware(adapter
, doneflag
);
2199 if (stat
== RDWR_STATUS_FAILURE
)
2202 reg_start
= card
->reg
->fw_dump_start
;
2203 reg_end
= card
->reg
->fw_dump_end
;
2204 for (reg
= reg_start
; reg
<= reg_end
; reg
++) {
2205 *dbg_ptr
= sdio_readb(card
->func
, reg
, &ret
);
2207 dev_err(adapter
->dev
,
2211 if (dbg_ptr
< end_ptr
)
2214 dev_err(adapter
->dev
,
2215 "Allocated buf not enough\n");
2218 if (stat
!= RDWR_STATUS_DONE
)
2221 dev_info(adapter
->dev
, "%s done: size=0x%tx\n",
2222 entry
->mem_name
, dbg_ptr
- entry
->mem_ptr
);
2226 dev_info(adapter
->dev
, "== mwifiex firmware dump end ==\n");
2228 kobject_uevent_env(&adapter
->wiphy
->dev
.kobj
, KOBJ_CHANGE
, env
);
2231 sdio_release_host(card
->func
);
2232 adapter
->curr_mem_idx
= 0;
2235 static void mwifiex_sdio_work(struct work_struct
*work
)
2237 struct mwifiex_adapter
*adapter
=
2238 container_of(work
, struct mwifiex_adapter
, iface_work
);
2240 if (test_and_clear_bit(MWIFIEX_IFACE_WORK_CARD_RESET
,
2241 &adapter
->iface_work_flags
))
2242 mwifiex_sdio_card_reset_work(adapter
);
2243 if (test_and_clear_bit(MWIFIEX_IFACE_WORK_FW_DUMP
,
2244 &adapter
->iface_work_flags
))
2245 mwifiex_sdio_fw_dump_work(work
);
2248 /* This function resets the card */
2249 static void mwifiex_sdio_card_reset(struct mwifiex_adapter
*adapter
)
2251 if (test_bit(MWIFIEX_IFACE_WORK_CARD_RESET
, &adapter
->iface_work_flags
))
2254 set_bit(MWIFIEX_IFACE_WORK_CARD_RESET
, &adapter
->iface_work_flags
);
2256 schedule_work(&adapter
->iface_work
);
2259 /* This function dumps FW information */
2260 static void mwifiex_sdio_fw_dump(struct mwifiex_adapter
*adapter
)
2262 if (test_bit(MWIFIEX_IFACE_WORK_FW_DUMP
, &adapter
->iface_work_flags
))
2265 set_bit(MWIFIEX_IFACE_WORK_FW_DUMP
, &adapter
->iface_work_flags
);
2266 schedule_work(&adapter
->iface_work
);
2269 /* Function to dump SDIO function registers and SDIO scratch registers in case
2273 mwifiex_sdio_reg_dump(struct mwifiex_adapter
*adapter
, char *drv_buf
)
2276 struct sdio_mmc_card
*cardp
= adapter
->card
;
2278 u8 count
, func
, data
, index
= 0, size
= 0;
2279 u8 reg
, reg_start
, reg_end
;
2280 char buf
[256], *ptr
;
2285 dev_info(adapter
->dev
, "SDIO register DUMP START\n");
2287 mwifiex_pm_wakeup_card(adapter
);
2289 sdio_claim_host(cardp
->func
);
2291 for (count
= 0; count
< 5; count
++) {
2292 memset(buf
, 0, sizeof(buf
));
2297 /* Read the registers of SDIO function0 */
2303 /* Read the registers of SDIO function1 */
2305 reg_start
= cardp
->reg
->func1_dump_reg_start
;
2306 reg_end
= cardp
->reg
->func1_dump_reg_end
;
2311 reg_start
= cardp
->reg
->func1_spec_reg_table
[index
++];
2312 size
= cardp
->reg
->func1_spec_reg_num
;
2313 reg_end
= cardp
->reg
->func1_spec_reg_table
[size
-1];
2316 /* Read the scratch registers of SDIO function1 */
2320 reg_start
= cardp
->reg
->func1_scratch_reg
;
2321 reg_end
= reg_start
+ MWIFIEX_SDIO_SCRATCH_SIZE
;
2325 ptr
+= sprintf(ptr
, "SDIO Func%d (%#x-%#x): ",
2326 func
, reg_start
, reg_end
);
2328 ptr
+= sprintf(ptr
, "SDIO Func%d: ", func
);
2330 for (reg
= reg_start
; reg
<= reg_end
;) {
2332 data
= sdio_f0_readb(cardp
->func
, reg
, &ret
);
2334 data
= sdio_readb(cardp
->func
, reg
, &ret
);
2337 ptr
+= sprintf(ptr
, "(%#x) ", reg
);
2339 ptr
+= sprintf(ptr
, "%02x ", data
);
2341 ptr
+= sprintf(ptr
, "ERR");
2345 if (count
== 2 && reg
< reg_end
)
2346 reg
= cardp
->reg
->func1_spec_reg_table
[index
++];
2351 dev_info(adapter
->dev
, "%s\n", buf
);
2352 p
+= sprintf(p
, "%s\n", buf
);
2355 sdio_release_host(cardp
->func
);
2357 dev_info(adapter
->dev
, "SDIO register DUMP END\n");
2362 static struct mwifiex_if_ops sdio_ops
= {
2363 .init_if
= mwifiex_init_sdio
,
2364 .cleanup_if
= mwifiex_cleanup_sdio
,
2365 .check_fw_status
= mwifiex_check_fw_status
,
2366 .prog_fw
= mwifiex_prog_fw_w_helper
,
2367 .register_dev
= mwifiex_register_dev
,
2368 .unregister_dev
= mwifiex_unregister_dev
,
2369 .enable_int
= mwifiex_sdio_enable_host_int
,
2370 .disable_int
= mwifiex_sdio_disable_host_int
,
2371 .process_int_status
= mwifiex_process_int_status
,
2372 .host_to_card
= mwifiex_sdio_host_to_card
,
2373 .wakeup
= mwifiex_pm_wakeup_card
,
2374 .wakeup_complete
= mwifiex_pm_wakeup_card_complete
,
2377 .update_mp_end_port
= mwifiex_update_mp_end_port
,
2378 .cleanup_mpa_buf
= mwifiex_cleanup_mpa_buf
,
2379 .cmdrsp_complete
= mwifiex_sdio_cmdrsp_complete
,
2380 .event_complete
= mwifiex_sdio_event_complete
,
2381 .card_reset
= mwifiex_sdio_card_reset
,
2382 .iface_work
= mwifiex_sdio_work
,
2383 .fw_dump
= mwifiex_sdio_fw_dump
,
2384 .reg_dump
= mwifiex_sdio_reg_dump
,
2385 .deaggr_pkt
= mwifiex_deaggr_sdio_pkt
,
2389 * This function initializes the SDIO driver.
2391 * This initiates the semaphore and registers the device with
2395 mwifiex_sdio_init_module(void)
2397 sema_init(&add_remove_card_sem
, 1);
2399 /* Clear the flag in case user removes the card. */
2402 return sdio_register_driver(&mwifiex_sdio
);
2406 * This function cleans up the SDIO driver.
2408 * The following major steps are followed for cleanup -
2409 * - Resume the device if its suspended
2410 * - Disconnect the device if connected
2411 * - Shutdown the firmware
2412 * - Unregister the device from SDIO bus.
2415 mwifiex_sdio_cleanup_module(void)
2417 if (!down_interruptible(&add_remove_card_sem
))
2418 up(&add_remove_card_sem
);
2420 /* Set the flag as user is removing this module. */
2423 sdio_unregister_driver(&mwifiex_sdio
);
2426 module_init(mwifiex_sdio_init_module
);
2427 module_exit(mwifiex_sdio_cleanup_module
);
2429 MODULE_AUTHOR("Marvell International Ltd.");
2430 MODULE_DESCRIPTION("Marvell WiFi-Ex SDIO Driver version " SDIO_VERSION
);
2431 MODULE_VERSION(SDIO_VERSION
);
2432 MODULE_LICENSE("GPL v2");
2433 MODULE_FIRMWARE(SD8786_DEFAULT_FW_NAME
);
2434 MODULE_FIRMWARE(SD8787_DEFAULT_FW_NAME
);
2435 MODULE_FIRMWARE(SD8797_DEFAULT_FW_NAME
);
2436 MODULE_FIRMWARE(SD8897_DEFAULT_FW_NAME
);
2437 MODULE_FIRMWARE(SD8887_DEFAULT_FW_NAME
);