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 static void mwifiex_sdio_work(struct work_struct *work);
36 static struct mwifiex_if_ops sdio_ops;
38 static struct memory_type_mapping generic_mem_type_map[] = {
39 {"DUMP", NULL, 0, 0xDD},
42 static struct memory_type_mapping mem_type_mapping_tbl[] = {
43 {"ITCM", NULL, 0, 0xF0},
44 {"DTCM", NULL, 0, 0xF1},
45 {"SQRAM", NULL, 0, 0xF2},
46 {"APU", NULL, 0, 0xF3},
47 {"CIU", NULL, 0, 0xF4},
48 {"ICU", NULL, 0, 0xF5},
49 {"MAC", NULL, 0, 0xF6},
50 {"EXT7", NULL, 0, 0xF7},
51 {"EXT8", NULL, 0, 0xF8},
52 {"EXT9", NULL, 0, 0xF9},
53 {"EXT10", NULL, 0, 0xFA},
54 {"EXT11", NULL, 0, 0xFB},
55 {"EXT12", NULL, 0, 0xFC},
56 {"EXT13", NULL, 0, 0xFD},
57 {"EXTLAST", NULL, 0, 0xFE},
60 static const struct of_device_id mwifiex_sdio_of_match_table[] = {
61 { .compatible = "marvell,sd8897" },
62 { .compatible = "marvell,sd8997" },
66 /* This function parse device tree node using mmc subnode devicetree API.
67 * The device node is saved in card->plt_of_node.
68 * if the device tree node exist and include interrupts attributes, this
69 * function will also request platform specific wakeup interrupt.
71 static int mwifiex_sdio_probe_of(struct device *dev)
73 if (!of_match_node(mwifiex_sdio_of_match_table, dev->of_node)) {
74 dev_err(dev, "required compatible string missing\n");
84 * This function probes an mwifiex device and registers it. It allocates
85 * the card structure, enables SDIO function number and initiates the
86 * device registration and initialization procedure by adding a logical
90 mwifiex_sdio_probe(struct sdio_func *func, const struct sdio_device_id *id)
93 struct sdio_mmc_card *card = NULL;
95 pr_debug("info: vendor=0x%4.04X device=0x%4.04X class=%d function=%d\n",
96 func->vendor, func->device, func->class, func->num);
98 card = devm_kzalloc(&func->dev, sizeof(*card), GFP_KERNEL);
102 init_completion(&card->fw_done);
106 func->card->quirks |= MMC_QUIRK_BLKSZ_FOR_BYTE_MODE;
108 if (id->driver_data) {
109 struct mwifiex_sdio_device *data = (void *)id->driver_data;
111 card->firmware = data->firmware;
112 card->reg = data->reg;
113 card->max_ports = data->max_ports;
114 card->mp_agg_pkt_limit = data->mp_agg_pkt_limit;
115 card->supports_sdio_new_mode = data->supports_sdio_new_mode;
116 card->has_control_mask = data->has_control_mask;
117 card->tx_buf_size = data->tx_buf_size;
118 card->mp_tx_agg_buf_size = data->mp_tx_agg_buf_size;
119 card->mp_rx_agg_buf_size = data->mp_rx_agg_buf_size;
120 card->can_dump_fw = data->can_dump_fw;
121 card->fw_dump_enh = data->fw_dump_enh;
122 card->can_auto_tdls = data->can_auto_tdls;
123 card->can_ext_scan = data->can_ext_scan;
124 INIT_WORK(&card->work, mwifiex_sdio_work);
127 sdio_claim_host(func);
128 ret = sdio_enable_func(func);
129 sdio_release_host(func);
132 dev_err(&func->dev, "failed to enable function\n");
136 /* device tree node parsing and platform specific configuration*/
137 if (func->dev.of_node) {
138 ret = mwifiex_sdio_probe_of(&func->dev);
143 ret = mwifiex_add_card(card, &card->fw_done, &sdio_ops,
144 MWIFIEX_SDIO, &func->dev);
146 dev_err(&func->dev, "add card failed\n");
153 sdio_claim_host(func);
154 sdio_disable_func(func);
155 sdio_release_host(func);
163 * Kernel needs to suspend all functions separately. Therefore all
164 * registered functions must have drivers with suspend and resume
165 * methods. Failing that the kernel simply removes the whole card.
167 * If already not resumed, this function turns on the traffic and
168 * sends a host sleep cancel request to the firmware.
170 static int mwifiex_sdio_resume(struct device *dev)
172 struct sdio_func *func = dev_to_sdio_func(dev);
173 struct sdio_mmc_card *card;
174 struct mwifiex_adapter *adapter;
176 card = sdio_get_drvdata(func);
177 if (!card || !card->adapter) {
178 dev_err(dev, "resume: invalid card or adapter\n");
182 adapter = card->adapter;
184 if (!adapter->is_suspended) {
185 mwifiex_dbg(adapter, WARN,
186 "device already resumed\n");
190 adapter->is_suspended = false;
192 /* Disable Host Sleep */
193 mwifiex_cancel_hs(mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA),
196 mwifiex_disable_wake(adapter);
201 /* Write data into SDIO card register. Caller claims SDIO device. */
203 mwifiex_write_reg_locked(struct sdio_func *func, u32 reg, u8 data)
207 sdio_writeb(func, data, reg, &ret);
211 /* This function writes data into SDIO card register.
214 mwifiex_write_reg(struct mwifiex_adapter *adapter, u32 reg, u8 data)
216 struct sdio_mmc_card *card = adapter->card;
219 sdio_claim_host(card->func);
220 ret = mwifiex_write_reg_locked(card->func, reg, data);
221 sdio_release_host(card->func);
226 /* This function reads data from SDIO card register.
229 mwifiex_read_reg(struct mwifiex_adapter *adapter, u32 reg, u8 *data)
231 struct sdio_mmc_card *card = adapter->card;
235 sdio_claim_host(card->func);
236 val = sdio_readb(card->func, reg, &ret);
237 sdio_release_host(card->func);
244 /* This function writes multiple data into SDIO card memory.
246 * This does not work in suspended mode.
249 mwifiex_write_data_sync(struct mwifiex_adapter *adapter,
250 u8 *buffer, u32 pkt_len, u32 port)
252 struct sdio_mmc_card *card = adapter->card;
255 (port & MWIFIEX_SDIO_BYTE_MODE_MASK) ? BYTE_MODE : BLOCK_MODE;
256 u32 blk_size = (blk_mode == BLOCK_MODE) ? MWIFIEX_SDIO_BLOCK_SIZE : 1;
259 BLOCK_MODE) ? (pkt_len /
260 MWIFIEX_SDIO_BLOCK_SIZE) : pkt_len;
261 u32 ioport = (port & MWIFIEX_SDIO_IO_PORT_MASK);
263 if (adapter->is_suspended) {
264 mwifiex_dbg(adapter, ERROR,
265 "%s: not allowed while suspended\n", __func__);
269 sdio_claim_host(card->func);
271 ret = sdio_writesb(card->func, ioport, buffer, blk_cnt * blk_size);
273 sdio_release_host(card->func);
278 /* This function reads multiple data from SDIO card memory.
280 static int mwifiex_read_data_sync(struct mwifiex_adapter *adapter, u8 *buffer,
281 u32 len, u32 port, u8 claim)
283 struct sdio_mmc_card *card = adapter->card;
285 u8 blk_mode = (port & MWIFIEX_SDIO_BYTE_MODE_MASK) ? BYTE_MODE
287 u32 blk_size = (blk_mode == BLOCK_MODE) ? MWIFIEX_SDIO_BLOCK_SIZE : 1;
288 u32 blk_cnt = (blk_mode == BLOCK_MODE) ? (len / MWIFIEX_SDIO_BLOCK_SIZE)
290 u32 ioport = (port & MWIFIEX_SDIO_IO_PORT_MASK);
293 sdio_claim_host(card->func);
295 ret = sdio_readsb(card->func, buffer, ioport, blk_cnt * blk_size);
298 sdio_release_host(card->func);
303 /* This function reads the firmware status.
306 mwifiex_sdio_read_fw_status(struct mwifiex_adapter *adapter, u16 *dat)
308 struct sdio_mmc_card *card = adapter->card;
309 const struct mwifiex_sdio_card_reg *reg = card->reg;
312 if (mwifiex_read_reg(adapter, reg->status_reg_0, &fws0))
315 if (mwifiex_read_reg(adapter, reg->status_reg_1, &fws1))
318 *dat = (u16)((fws1 << 8) | fws0);
322 /* This function checks the firmware status in card.
324 static int mwifiex_check_fw_status(struct mwifiex_adapter *adapter,
331 for (tries = 0; tries < poll_num; tries++) {
332 ret = mwifiex_sdio_read_fw_status(adapter, &firmware_stat);
335 if (firmware_stat == FIRMWARE_READY_SDIO) {
347 /* This function checks if WLAN is the winner.
349 static int mwifiex_check_winner_status(struct mwifiex_adapter *adapter)
353 struct sdio_mmc_card *card = adapter->card;
355 if (mwifiex_read_reg(adapter, card->reg->status_reg_0, &winner))
369 * This function removes the interface and frees up the card structure.
372 mwifiex_sdio_remove(struct sdio_func *func)
374 struct sdio_mmc_card *card;
375 struct mwifiex_adapter *adapter;
376 struct mwifiex_private *priv;
380 card = sdio_get_drvdata(func);
384 wait_for_completion(&card->fw_done);
386 adapter = card->adapter;
387 if (!adapter || !adapter->priv_num)
390 mwifiex_dbg(adapter, INFO, "info: SDIO func num=%d\n", func->num);
392 ret = mwifiex_sdio_read_fw_status(adapter, &firmware_stat);
393 if (!ret && firmware_stat == FIRMWARE_READY_SDIO &&
394 !adapter->mfg_mode) {
395 mwifiex_deauthenticate_all(adapter);
397 priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
398 mwifiex_disable_auto_ds(priv);
399 mwifiex_init_shutdown_fw(priv, MWIFIEX_FUNC_SHUTDOWN);
402 mwifiex_remove_card(adapter);
408 * Kernel needs to suspend all functions separately. Therefore all
409 * registered functions must have drivers with suspend and resume
410 * methods. Failing that the kernel simply removes the whole card.
412 * If already not suspended, this function allocates and sends a host
413 * sleep activate request to the firmware and turns off the traffic.
415 static int mwifiex_sdio_suspend(struct device *dev)
417 struct sdio_func *func = dev_to_sdio_func(dev);
418 struct sdio_mmc_card *card;
419 struct mwifiex_adapter *adapter;
420 mmc_pm_flag_t pm_flag = 0;
423 pm_flag = sdio_get_host_pm_caps(func);
424 pr_debug("cmd: %s: suspend: PM flag = 0x%x\n",
425 sdio_func_id(func), pm_flag);
426 if (!(pm_flag & MMC_PM_KEEP_POWER)) {
427 dev_err(dev, "%s: cannot remain alive while host is"
428 " suspended\n", sdio_func_id(func));
432 card = sdio_get_drvdata(func);
434 dev_err(dev, "suspend: invalid card\n");
438 /* Might still be loading firmware */
439 wait_for_completion(&card->fw_done);
441 adapter = card->adapter;
443 dev_err(dev, "adapter is not valid\n");
447 mwifiex_enable_wake(adapter);
449 /* Enable the Host Sleep */
450 if (!mwifiex_enable_hs(adapter)) {
451 mwifiex_dbg(adapter, ERROR,
452 "cmd: failed to suspend\n");
453 adapter->hs_enabling = false;
454 mwifiex_disable_wake(adapter);
458 mwifiex_dbg(adapter, INFO,
459 "cmd: suspend with MMC_PM_KEEP_POWER\n");
460 ret = sdio_set_host_pm_flags(func, MMC_PM_KEEP_POWER);
462 /* Indicate device suspended */
463 adapter->is_suspended = true;
464 adapter->hs_enabling = false;
469 static void mwifiex_sdio_coredump(struct device *dev)
471 struct sdio_func *func = dev_to_sdio_func(dev);
472 struct sdio_mmc_card *card;
474 card = sdio_get_drvdata(func);
475 if (!test_and_set_bit(MWIFIEX_IFACE_WORK_DEVICE_DUMP,
477 schedule_work(&card->work);
480 /* Device ID for SD8786 */
481 #define SDIO_DEVICE_ID_MARVELL_8786 (0x9116)
482 /* Device ID for SD8787 */
483 #define SDIO_DEVICE_ID_MARVELL_8787 (0x9119)
484 /* Device ID for SD8797 */
485 #define SDIO_DEVICE_ID_MARVELL_8797 (0x9129)
486 /* Device ID for SD8897 */
487 #define SDIO_DEVICE_ID_MARVELL_8897 (0x912d)
488 /* Device ID for SD8887 */
489 #define SDIO_DEVICE_ID_MARVELL_8887 (0x9135)
490 /* Device ID for SD8801 */
491 #define SDIO_DEVICE_ID_MARVELL_8801 (0x9139)
492 /* Device ID for SD8997 */
493 #define SDIO_DEVICE_ID_MARVELL_8997 (0x9141)
497 static const struct sdio_device_id mwifiex_ids[] = {
498 {SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8786),
499 .driver_data = (unsigned long) &mwifiex_sdio_sd8786},
500 {SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8787),
501 .driver_data = (unsigned long) &mwifiex_sdio_sd8787},
502 {SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8797),
503 .driver_data = (unsigned long) &mwifiex_sdio_sd8797},
504 {SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8897),
505 .driver_data = (unsigned long) &mwifiex_sdio_sd8897},
506 {SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8887),
507 .driver_data = (unsigned long)&mwifiex_sdio_sd8887},
508 {SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8801),
509 .driver_data = (unsigned long)&mwifiex_sdio_sd8801},
510 {SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8997),
511 .driver_data = (unsigned long)&mwifiex_sdio_sd8997},
515 MODULE_DEVICE_TABLE(sdio, mwifiex_ids);
517 static const struct dev_pm_ops mwifiex_sdio_pm_ops = {
518 .suspend = mwifiex_sdio_suspend,
519 .resume = mwifiex_sdio_resume,
522 static struct sdio_driver mwifiex_sdio = {
523 .name = "mwifiex_sdio",
524 .id_table = mwifiex_ids,
525 .probe = mwifiex_sdio_probe,
526 .remove = mwifiex_sdio_remove,
528 .owner = THIS_MODULE,
529 .coredump = mwifiex_sdio_coredump,
530 .pm = &mwifiex_sdio_pm_ops,
535 * This function wakes up the card.
537 * A host power up command is written to the card configuration
538 * register to wake up the card.
540 static int mwifiex_pm_wakeup_card(struct mwifiex_adapter *adapter)
542 mwifiex_dbg(adapter, EVENT,
543 "event: wakeup device...\n");
545 return mwifiex_write_reg(adapter, CONFIGURATION_REG, HOST_POWER_UP);
549 * This function is called after the card has woken up.
551 * The card configuration register is reset.
553 static int mwifiex_pm_wakeup_card_complete(struct mwifiex_adapter *adapter)
555 mwifiex_dbg(adapter, EVENT,
556 "cmd: wakeup device completed\n");
558 return mwifiex_write_reg(adapter, CONFIGURATION_REG, 0);
561 static int mwifiex_sdio_dnld_fw(struct mwifiex_adapter *adapter,
562 struct mwifiex_fw_image *fw)
564 struct sdio_mmc_card *card = adapter->card;
567 sdio_claim_host(card->func);
568 ret = mwifiex_dnld_fw(adapter, fw);
569 sdio_release_host(card->func);
575 * This function is used to initialize IO ports for the
576 * chipsets supporting SDIO new mode eg SD8897.
578 static int mwifiex_init_sdio_new_mode(struct mwifiex_adapter *adapter)
581 struct sdio_mmc_card *card = adapter->card;
583 adapter->ioport = MEM_PORT;
585 /* enable sdio new mode */
586 if (mwifiex_read_reg(adapter, card->reg->card_cfg_2_1_reg, ®))
588 if (mwifiex_write_reg(adapter, card->reg->card_cfg_2_1_reg,
589 reg | CMD53_NEW_MODE))
592 /* Configure cmd port and enable reading rx length from the register */
593 if (mwifiex_read_reg(adapter, card->reg->cmd_cfg_0, ®))
595 if (mwifiex_write_reg(adapter, card->reg->cmd_cfg_0,
596 reg | CMD_PORT_RD_LEN_EN))
599 /* Enable Dnld/Upld ready auto reset for cmd port after cmd53 is
602 if (mwifiex_read_reg(adapter, card->reg->cmd_cfg_1, ®))
604 if (mwifiex_write_reg(adapter, card->reg->cmd_cfg_1,
605 reg | CMD_PORT_AUTO_EN))
611 /* This function initializes the IO ports.
613 * The following operations are performed -
614 * - Read the IO ports (0, 1 and 2)
615 * - Set host interrupt Reset-To-Read to clear
616 * - Set auto re-enable interrupt
618 static int mwifiex_init_sdio_ioport(struct mwifiex_adapter *adapter)
621 struct sdio_mmc_card *card = adapter->card;
625 if (card->supports_sdio_new_mode) {
626 if (mwifiex_init_sdio_new_mode(adapter))
631 /* Read the IO port */
632 if (!mwifiex_read_reg(adapter, card->reg->io_port_0_reg, ®))
633 adapter->ioport |= (reg & 0xff);
637 if (!mwifiex_read_reg(adapter, card->reg->io_port_1_reg, ®))
638 adapter->ioport |= ((reg & 0xff) << 8);
642 if (!mwifiex_read_reg(adapter, card->reg->io_port_2_reg, ®))
643 adapter->ioport |= ((reg & 0xff) << 16);
647 mwifiex_dbg(adapter, INFO,
648 "info: SDIO FUNC1 IO port: %#x\n", adapter->ioport);
650 /* Set Host interrupt reset to read to clear */
651 if (!mwifiex_read_reg(adapter, card->reg->host_int_rsr_reg, ®))
652 mwifiex_write_reg(adapter, card->reg->host_int_rsr_reg,
653 reg | card->reg->sdio_int_mask);
657 /* Dnld/Upld ready set to auto reset */
658 if (!mwifiex_read_reg(adapter, card->reg->card_misc_cfg_reg, ®))
659 mwifiex_write_reg(adapter, card->reg->card_misc_cfg_reg,
660 reg | AUTO_RE_ENABLE_INT);
668 * This function sends data to the card.
670 static int mwifiex_write_data_to_card(struct mwifiex_adapter *adapter,
671 u8 *payload, u32 pkt_len, u32 port)
677 ret = mwifiex_write_data_sync(adapter, payload, pkt_len, port);
680 mwifiex_dbg(adapter, ERROR,
681 "host_to_card, write iomem\t"
682 "(%d) failed: %d\n", i, ret);
683 if (mwifiex_write_reg(adapter, CONFIGURATION_REG, 0x04))
684 mwifiex_dbg(adapter, ERROR,
685 "write CFG reg failed\n");
688 if (i > MAX_WRITE_IOMEM_RETRY)
697 * This function gets the read port.
699 * If control port bit is set in MP read bitmap, the control port
700 * is returned, otherwise the current read port is returned and
701 * the value is increased (provided it does not reach the maximum
702 * limit, in which case it is reset to 1)
704 static int mwifiex_get_rd_port(struct mwifiex_adapter *adapter, u8 *port)
706 struct sdio_mmc_card *card = adapter->card;
707 const struct mwifiex_sdio_card_reg *reg = card->reg;
708 u32 rd_bitmap = card->mp_rd_bitmap;
710 mwifiex_dbg(adapter, DATA,
711 "data: mp_rd_bitmap=0x%08x\n", rd_bitmap);
713 if (card->supports_sdio_new_mode) {
714 if (!(rd_bitmap & reg->data_port_mask))
717 if (!(rd_bitmap & (CTRL_PORT_MASK | reg->data_port_mask)))
721 if ((card->has_control_mask) &&
722 (card->mp_rd_bitmap & CTRL_PORT_MASK)) {
723 card->mp_rd_bitmap &= (u32) (~CTRL_PORT_MASK);
725 mwifiex_dbg(adapter, DATA,
726 "data: port=%d mp_rd_bitmap=0x%08x\n",
727 *port, card->mp_rd_bitmap);
731 if (!(card->mp_rd_bitmap & (1 << card->curr_rd_port)))
734 /* We are now handling the SDIO data ports */
735 card->mp_rd_bitmap &= (u32)(~(1 << card->curr_rd_port));
736 *port = card->curr_rd_port;
738 if (++card->curr_rd_port == card->max_ports)
739 card->curr_rd_port = reg->start_rd_port;
741 mwifiex_dbg(adapter, DATA,
742 "data: port=%d mp_rd_bitmap=0x%08x -> 0x%08x\n",
743 *port, rd_bitmap, card->mp_rd_bitmap);
749 * This function gets the write port for data.
751 * The current write port is returned if available and the value is
752 * increased (provided it does not reach the maximum limit, in which
753 * case it is reset to 1)
755 static int mwifiex_get_wr_port_data(struct mwifiex_adapter *adapter, u32 *port)
757 struct sdio_mmc_card *card = adapter->card;
758 const struct mwifiex_sdio_card_reg *reg = card->reg;
759 u32 wr_bitmap = card->mp_wr_bitmap;
761 mwifiex_dbg(adapter, DATA,
762 "data: mp_wr_bitmap=0x%08x\n", wr_bitmap);
764 if (!(wr_bitmap & card->mp_data_port_mask)) {
765 adapter->data_sent = true;
769 if (card->mp_wr_bitmap & (1 << card->curr_wr_port)) {
770 card->mp_wr_bitmap &= (u32) (~(1 << card->curr_wr_port));
771 *port = card->curr_wr_port;
772 if (++card->curr_wr_port == card->mp_end_port)
773 card->curr_wr_port = reg->start_wr_port;
775 adapter->data_sent = true;
779 if ((card->has_control_mask) && (*port == CTRL_PORT)) {
780 mwifiex_dbg(adapter, ERROR,
781 "invalid data port=%d cur port=%d mp_wr_bitmap=0x%08x -> 0x%08x\n",
782 *port, card->curr_wr_port, wr_bitmap,
787 mwifiex_dbg(adapter, DATA,
788 "data: port=%d mp_wr_bitmap=0x%08x -> 0x%08x\n",
789 *port, wr_bitmap, card->mp_wr_bitmap);
795 * This function polls the card status.
798 mwifiex_sdio_poll_card_status(struct mwifiex_adapter *adapter, u8 bits)
800 struct sdio_mmc_card *card = adapter->card;
804 for (tries = 0; tries < MAX_POLL_TRIES; tries++) {
805 if (mwifiex_read_reg(adapter, card->reg->poll_reg, &cs))
807 else if ((cs & bits) == bits)
810 usleep_range(10, 20);
813 mwifiex_dbg(adapter, ERROR,
814 "poll card status failed, tries = %d\n", tries);
820 * This function disables the host interrupt.
822 * The host interrupt mask is read, the disable bit is reset and
823 * written back to the card host interrupt mask register.
825 static void mwifiex_sdio_disable_host_int(struct mwifiex_adapter *adapter)
827 struct sdio_mmc_card *card = adapter->card;
828 struct sdio_func *func = card->func;
830 sdio_claim_host(func);
831 mwifiex_write_reg_locked(func, card->reg->host_int_mask_reg, 0);
832 sdio_release_irq(func);
833 sdio_release_host(func);
837 * This function reads the interrupt status from card.
839 static void mwifiex_interrupt_status(struct mwifiex_adapter *adapter)
841 struct sdio_mmc_card *card = adapter->card;
845 if (mwifiex_read_data_sync(adapter, card->mp_regs,
846 card->reg->max_mp_regs,
847 REG_PORT | MWIFIEX_SDIO_BYTE_MODE_MASK, 0)) {
848 mwifiex_dbg(adapter, ERROR, "read mp_regs failed\n");
852 sdio_ireg = card->mp_regs[card->reg->host_int_status_reg];
855 * DN_LD_HOST_INT_STATUS and/or UP_LD_HOST_INT_STATUS
856 * For SDIO new mode CMD port interrupts
857 * DN_LD_CMD_PORT_HOST_INT_STATUS and/or
858 * UP_LD_CMD_PORT_HOST_INT_STATUS
859 * Clear the interrupt status register
861 mwifiex_dbg(adapter, INTR,
862 "int: sdio_ireg = %#x\n", sdio_ireg);
863 spin_lock_irqsave(&adapter->int_lock, flags);
864 adapter->int_status |= sdio_ireg;
865 spin_unlock_irqrestore(&adapter->int_lock, flags);
870 * SDIO interrupt handler.
872 * This function reads the interrupt status from firmware and handles
873 * the interrupt in current thread (ksdioirqd) right away.
876 mwifiex_sdio_interrupt(struct sdio_func *func)
878 struct mwifiex_adapter *adapter;
879 struct sdio_mmc_card *card;
881 card = sdio_get_drvdata(func);
882 if (!card || !card->adapter) {
883 pr_err("int: func=%p card=%p adapter=%p\n",
884 func, card, card ? card->adapter : NULL);
887 adapter = card->adapter;
889 if (!adapter->pps_uapsd_mode && adapter->ps_state == PS_STATE_SLEEP)
890 adapter->ps_state = PS_STATE_AWAKE;
892 mwifiex_interrupt_status(adapter);
893 mwifiex_main_process(adapter);
897 * This function enables the host interrupt.
899 * The host interrupt enable mask is written to the card
900 * host interrupt mask register.
902 static int mwifiex_sdio_enable_host_int(struct mwifiex_adapter *adapter)
904 struct sdio_mmc_card *card = adapter->card;
905 struct sdio_func *func = card->func;
908 sdio_claim_host(func);
910 /* Request the SDIO IRQ */
911 ret = sdio_claim_irq(func, mwifiex_sdio_interrupt);
913 mwifiex_dbg(adapter, ERROR,
914 "claim irq failed: ret=%d\n", ret);
918 /* Simply write the mask to the register */
919 ret = mwifiex_write_reg_locked(func, card->reg->host_int_mask_reg,
920 card->reg->host_int_enable);
922 mwifiex_dbg(adapter, ERROR,
923 "enable host interrupt failed\n");
924 sdio_release_irq(func);
928 sdio_release_host(func);
933 * This function sends a data buffer to the card.
935 static int mwifiex_sdio_card_to_host(struct mwifiex_adapter *adapter,
936 u32 *type, u8 *buffer,
937 u32 npayload, u32 ioport)
943 mwifiex_dbg(adapter, ERROR,
944 "%s: buffer is NULL\n", __func__);
948 ret = mwifiex_read_data_sync(adapter, buffer, npayload, ioport, 1);
951 mwifiex_dbg(adapter, ERROR,
952 "%s: read iomem failed: %d\n", __func__,
957 nb = get_unaligned_le16((buffer));
959 mwifiex_dbg(adapter, ERROR,
960 "%s: invalid packet, nb=%d npayload=%d\n",
961 __func__, nb, npayload);
965 *type = get_unaligned_le16((buffer + 2));
971 * This function downloads the firmware to the card.
973 * Firmware is downloaded to the card in blocks. Every block download
974 * is tested for CRC errors, and retried a number of times before
977 static int mwifiex_prog_fw_w_helper(struct mwifiex_adapter *adapter,
978 struct mwifiex_fw_image *fw)
980 struct sdio_mmc_card *card = adapter->card;
981 const struct mwifiex_sdio_card_reg *reg = card->reg;
983 u8 *firmware = fw->fw_buf;
984 u32 firmware_len = fw->fw_len;
989 u32 txlen, tx_blocks = 0, tries;
993 mwifiex_dbg(adapter, ERROR,
994 "firmware image not found! Terminating download\n");
998 mwifiex_dbg(adapter, INFO,
999 "info: downloading FW image (%d bytes)\n",
1002 /* Assume that the allocated buffer is 8-byte aligned */
1003 fwbuf = kzalloc(MWIFIEX_UPLD_SIZE, GFP_KERNEL);
1007 sdio_claim_host(card->func);
1009 /* Perform firmware data transfer */
1011 /* The host polls for the DN_LD_CARD_RDY and CARD_IO_READY
1013 ret = mwifiex_sdio_poll_card_status(adapter, CARD_IO_READY |
1016 mwifiex_dbg(adapter, ERROR,
1017 "FW download with helper:\t"
1018 "poll status timeout @ %d\n", offset);
1023 if (offset >= firmware_len)
1026 for (tries = 0; tries < MAX_POLL_TRIES; tries++) {
1027 ret = mwifiex_read_reg(adapter, reg->base_0_reg,
1030 mwifiex_dbg(adapter, ERROR,
1031 "dev BASE0 register read failed:\t"
1032 "base0=%#04X(%d). Terminating dnld\n",
1036 ret = mwifiex_read_reg(adapter, reg->base_1_reg,
1039 mwifiex_dbg(adapter, ERROR,
1040 "dev BASE1 register read failed:\t"
1041 "base1=%#04X(%d). Terminating dnld\n",
1045 len = (u16) (((base1 & 0xff) << 8) | (base0 & 0xff));
1050 usleep_range(10, 20);
1055 } else if (len > MWIFIEX_UPLD_SIZE) {
1056 mwifiex_dbg(adapter, ERROR,
1057 "FW dnld failed @ %d, invalid length %d\n",
1067 if (i > MAX_WRITE_IOMEM_RETRY) {
1068 mwifiex_dbg(adapter, ERROR,
1069 "FW dnld failed @ %d, over max retry\n",
1074 mwifiex_dbg(adapter, ERROR,
1075 "CRC indicated by the helper:\t"
1076 "len = 0x%04X, txlen = %d\n", len, txlen);
1078 /* Setting this to 0 to resend from same offset */
1083 /* Set blocksize to transfer - checking for last
1085 if (firmware_len - offset < txlen)
1086 txlen = firmware_len - offset;
1088 tx_blocks = (txlen + MWIFIEX_SDIO_BLOCK_SIZE - 1)
1089 / MWIFIEX_SDIO_BLOCK_SIZE;
1091 /* Copy payload to buffer */
1092 memmove(fwbuf, &firmware[offset], txlen);
1095 ret = mwifiex_write_data_sync(adapter, fwbuf, tx_blocks *
1096 MWIFIEX_SDIO_BLOCK_SIZE,
1099 mwifiex_dbg(adapter, ERROR,
1100 "FW download, write iomem (%d) failed @ %d\n",
1102 if (mwifiex_write_reg(adapter, CONFIGURATION_REG, 0x04))
1103 mwifiex_dbg(adapter, ERROR,
1104 "write CFG reg failed\n");
1113 mwifiex_dbg(adapter, MSG,
1114 "info: FW download over, size %d bytes\n", offset);
1118 sdio_release_host(card->func);
1124 * This function decode sdio aggreation pkt.
1126 * Based on the the data block size and pkt_len,
1127 * skb data will be decoded to few packets.
1129 static void mwifiex_deaggr_sdio_pkt(struct mwifiex_adapter *adapter,
1130 struct sk_buff *skb)
1132 u32 total_pkt_len, pkt_len;
1133 struct sk_buff *skb_deaggr;
1139 total_pkt_len = skb->len;
1141 while (total_pkt_len >= (SDIO_HEADER_OFFSET + adapter->intf_hdr_len)) {
1142 if (total_pkt_len < adapter->sdio_rx_block_size)
1144 blk_num = *(data + BLOCK_NUMBER_OFFSET);
1145 blk_size = adapter->sdio_rx_block_size * blk_num;
1146 if (blk_size > total_pkt_len) {
1147 mwifiex_dbg(adapter, ERROR,
1148 "%s: error in blk_size,\t"
1149 "blk_num=%d, blk_size=%d, total_pkt_len=%d\n",
1150 __func__, blk_num, blk_size, total_pkt_len);
1153 pkt_len = get_unaligned_le16((data +
1154 SDIO_HEADER_OFFSET));
1155 if ((pkt_len + SDIO_HEADER_OFFSET) > blk_size) {
1156 mwifiex_dbg(adapter, ERROR,
1157 "%s: error in pkt_len,\t"
1158 "pkt_len=%d, blk_size=%d\n",
1159 __func__, pkt_len, blk_size);
1163 skb_deaggr = mwifiex_alloc_dma_align_buf(pkt_len, GFP_KERNEL);
1166 skb_put(skb_deaggr, pkt_len);
1167 memcpy(skb_deaggr->data, data + SDIO_HEADER_OFFSET, pkt_len);
1168 skb_pull(skb_deaggr, adapter->intf_hdr_len);
1170 mwifiex_handle_rx_packet(adapter, skb_deaggr);
1172 total_pkt_len -= blk_size;
1177 * This function decodes a received packet.
1179 * Based on the type, the packet is treated as either a data, or
1180 * a command response, or an event, and the correct handler
1181 * function is invoked.
1183 static int mwifiex_decode_rx_packet(struct mwifiex_adapter *adapter,
1184 struct sk_buff *skb, u32 upld_typ)
1188 struct mwifiex_rxinfo *rx_info;
1190 pkt_len = get_unaligned_le16(skb->data);
1192 if (upld_typ != MWIFIEX_TYPE_AGGR_DATA) {
1193 skb_trim(skb, pkt_len);
1194 skb_pull(skb, adapter->intf_hdr_len);
1198 case MWIFIEX_TYPE_AGGR_DATA:
1199 mwifiex_dbg(adapter, INFO,
1200 "info: --- Rx: Aggr Data packet ---\n");
1201 rx_info = MWIFIEX_SKB_RXCB(skb);
1202 rx_info->buf_type = MWIFIEX_TYPE_AGGR_DATA;
1203 if (adapter->rx_work_enabled) {
1204 skb_queue_tail(&adapter->rx_data_q, skb);
1205 atomic_inc(&adapter->rx_pending);
1206 adapter->data_received = true;
1208 mwifiex_deaggr_sdio_pkt(adapter, skb);
1209 dev_kfree_skb_any(skb);
1213 case MWIFIEX_TYPE_DATA:
1214 mwifiex_dbg(adapter, DATA,
1215 "info: --- Rx: Data packet ---\n");
1216 if (adapter->rx_work_enabled) {
1217 skb_queue_tail(&adapter->rx_data_q, skb);
1218 adapter->data_received = true;
1219 atomic_inc(&adapter->rx_pending);
1221 mwifiex_handle_rx_packet(adapter, skb);
1225 case MWIFIEX_TYPE_CMD:
1226 mwifiex_dbg(adapter, CMD,
1227 "info: --- Rx: Cmd Response ---\n");
1228 /* take care of curr_cmd = NULL case */
1229 if (!adapter->curr_cmd) {
1230 cmd_buf = adapter->upld_buf;
1232 if (adapter->ps_state == PS_STATE_SLEEP_CFM)
1233 mwifiex_process_sleep_confirm_resp(adapter,
1237 memcpy(cmd_buf, skb->data,
1238 min_t(u32, MWIFIEX_SIZE_OF_CMD_BUFFER,
1241 dev_kfree_skb_any(skb);
1243 adapter->cmd_resp_received = true;
1244 adapter->curr_cmd->resp_skb = skb;
1248 case MWIFIEX_TYPE_EVENT:
1249 mwifiex_dbg(adapter, EVENT,
1250 "info: --- Rx: Event ---\n");
1251 adapter->event_cause = get_unaligned_le32(skb->data);
1253 if ((skb->len > 0) && (skb->len < MAX_EVENT_SIZE))
1254 memcpy(adapter->event_body,
1255 skb->data + MWIFIEX_EVENT_HEADER_LEN,
1258 /* event cause has been saved to adapter->event_cause */
1259 adapter->event_received = true;
1260 adapter->event_skb = skb;
1265 mwifiex_dbg(adapter, ERROR,
1266 "unknown upload type %#x\n", upld_typ);
1267 dev_kfree_skb_any(skb);
1275 * This function transfers received packets from card to driver, performing
1276 * aggregation if required.
1278 * For data received on control port, or if aggregation is disabled, the
1279 * received buffers are uploaded as separate packets. However, if aggregation
1280 * is enabled and required, the buffers are copied onto an aggregation buffer,
1281 * provided there is space left, processed and finally uploaded.
1283 static int mwifiex_sdio_card_to_host_mp_aggr(struct mwifiex_adapter *adapter,
1284 u16 rx_len, u8 port)
1286 struct sdio_mmc_card *card = adapter->card;
1287 s32 f_do_rx_aggr = 0;
1288 s32 f_do_rx_cur = 0;
1290 s32 f_post_aggr_cur = 0;
1291 struct sk_buff *skb_deaggr;
1292 struct sk_buff *skb = NULL;
1293 u32 pkt_len, pkt_type, mport, pind;
1296 if ((card->has_control_mask) && (port == CTRL_PORT)) {
1297 /* Read the command Resp without aggr */
1298 mwifiex_dbg(adapter, CMD,
1299 "info: %s: no aggregation for cmd\t"
1300 "response\n", __func__);
1303 goto rx_curr_single;
1306 if (!card->mpa_rx.enabled) {
1307 mwifiex_dbg(adapter, WARN,
1308 "info: %s: rx aggregation disabled\n",
1312 goto rx_curr_single;
1315 if ((!card->has_control_mask && (card->mp_rd_bitmap &
1316 card->reg->data_port_mask)) ||
1317 (card->has_control_mask && (card->mp_rd_bitmap &
1318 (~((u32) CTRL_PORT_MASK))))) {
1319 /* Some more data RX pending */
1320 mwifiex_dbg(adapter, INFO,
1321 "info: %s: not last packet\n", __func__);
1323 if (MP_RX_AGGR_IN_PROGRESS(card)) {
1324 if (MP_RX_AGGR_BUF_HAS_ROOM(card, rx_len)) {
1327 /* No room in Aggr buf, do rx aggr now */
1329 f_post_aggr_cur = 1;
1332 /* Rx aggr not in progress */
1337 /* No more data RX pending */
1338 mwifiex_dbg(adapter, INFO,
1339 "info: %s: last packet\n", __func__);
1341 if (MP_RX_AGGR_IN_PROGRESS(card)) {
1343 if (MP_RX_AGGR_BUF_HAS_ROOM(card, rx_len))
1346 /* No room in Aggr buf, do rx aggr now */
1354 mwifiex_dbg(adapter, INFO,
1355 "info: current packet aggregation\n");
1356 /* Curr pkt can be aggregated */
1357 mp_rx_aggr_setup(card, rx_len, port);
1359 if (MP_RX_AGGR_PKT_LIMIT_REACHED(card) ||
1360 mp_rx_aggr_port_limit_reached(card)) {
1361 mwifiex_dbg(adapter, INFO,
1362 "info: %s: aggregated packet\t"
1363 "limit reached\n", __func__);
1364 /* No more pkts allowed in Aggr buf, rx it */
1370 /* do aggr RX now */
1371 mwifiex_dbg(adapter, DATA,
1372 "info: do_rx_aggr: num of packets: %d\n",
1373 card->mpa_rx.pkt_cnt);
1375 if (card->supports_sdio_new_mode) {
1379 for (i = 0, port_count = 0; i < card->max_ports; i++)
1380 if (card->mpa_rx.ports & BIT(i))
1383 /* Reading data from "start_port + 0" to "start_port +
1384 * port_count -1", so decrease the count by 1
1387 mport = (adapter->ioport | SDIO_MPA_ADDR_BASE |
1388 (port_count << 8)) + card->mpa_rx.start_port;
1390 mport = (adapter->ioport | SDIO_MPA_ADDR_BASE |
1391 (card->mpa_rx.ports << 4)) +
1392 card->mpa_rx.start_port;
1395 if (card->mpa_rx.pkt_cnt == 1)
1396 mport = adapter->ioport + card->mpa_rx.start_port;
1398 if (mwifiex_read_data_sync(adapter, card->mpa_rx.buf,
1399 card->mpa_rx.buf_len, mport, 1))
1402 curr_ptr = card->mpa_rx.buf;
1404 for (pind = 0; pind < card->mpa_rx.pkt_cnt; pind++) {
1405 u32 *len_arr = card->mpa_rx.len_arr;
1407 /* get curr PKT len & type */
1408 pkt_len = get_unaligned_le16(&curr_ptr[0]);
1409 pkt_type = get_unaligned_le16(&curr_ptr[2]);
1411 /* copy pkt to deaggr buf */
1412 skb_deaggr = mwifiex_alloc_dma_align_buf(len_arr[pind],
1415 mwifiex_dbg(adapter, ERROR, "skb allocation failure\t"
1416 "drop pkt len=%d type=%d\n",
1418 curr_ptr += len_arr[pind];
1422 skb_put(skb_deaggr, len_arr[pind]);
1424 if ((pkt_type == MWIFIEX_TYPE_DATA ||
1425 (pkt_type == MWIFIEX_TYPE_AGGR_DATA &&
1426 adapter->sdio_rx_aggr_enable)) &&
1427 (pkt_len <= len_arr[pind])) {
1429 memcpy(skb_deaggr->data, curr_ptr, pkt_len);
1431 skb_trim(skb_deaggr, pkt_len);
1433 /* Process de-aggr packet */
1434 mwifiex_decode_rx_packet(adapter, skb_deaggr,
1437 mwifiex_dbg(adapter, ERROR,
1438 "drop wrong aggr pkt:\t"
1439 "sdio_single_port_rx_aggr=%d\t"
1440 "type=%d len=%d max_len=%d\n",
1441 adapter->sdio_rx_aggr_enable,
1442 pkt_type, pkt_len, len_arr[pind]);
1443 dev_kfree_skb_any(skb_deaggr);
1445 curr_ptr += len_arr[pind];
1447 MP_RX_AGGR_BUF_RESET(card);
1452 mwifiex_dbg(adapter, INFO, "info: RX: port: %d, rx_len: %d\n",
1455 skb = mwifiex_alloc_dma_align_buf(rx_len, GFP_KERNEL);
1457 mwifiex_dbg(adapter, ERROR,
1458 "single skb allocated fail,\t"
1459 "drop pkt port=%d len=%d\n", port, rx_len);
1460 if (mwifiex_sdio_card_to_host(adapter, &pkt_type,
1461 card->mpa_rx.buf, rx_len,
1462 adapter->ioport + port))
1467 skb_put(skb, rx_len);
1469 if (mwifiex_sdio_card_to_host(adapter, &pkt_type,
1470 skb->data, skb->len,
1471 adapter->ioport + port))
1473 if (!adapter->sdio_rx_aggr_enable &&
1474 pkt_type == MWIFIEX_TYPE_AGGR_DATA) {
1475 mwifiex_dbg(adapter, ERROR, "drop wrong pkt type %d\t"
1476 "current SDIO RX Aggr not enabled\n",
1478 dev_kfree_skb_any(skb);
1482 mwifiex_decode_rx_packet(adapter, skb, pkt_type);
1484 if (f_post_aggr_cur) {
1485 mwifiex_dbg(adapter, INFO,
1486 "info: current packet aggregation\n");
1487 /* Curr pkt can be aggregated */
1488 mp_rx_aggr_setup(card, rx_len, port);
1493 if (MP_RX_AGGR_IN_PROGRESS(card))
1494 MP_RX_AGGR_BUF_RESET(card);
1496 if (f_do_rx_cur && skb)
1497 /* Single transfer pending. Free curr buff also */
1498 dev_kfree_skb_any(skb);
1504 * This function checks the current interrupt status.
1506 * The following interrupts are checked and handled by this function -
1509 * - Packets received
1511 * Since the firmware does not generate download ready interrupt if the
1512 * port updated is command port only, command sent interrupt checking
1513 * should be done manually, and for every SDIO interrupt.
1515 * In case of Rx packets received, the packets are uploaded from card to
1516 * host and processed accordingly.
1518 static int mwifiex_process_int_status(struct mwifiex_adapter *adapter)
1520 struct sdio_mmc_card *card = adapter->card;
1521 const struct mwifiex_sdio_card_reg *reg = card->reg;
1524 struct sk_buff *skb;
1525 u8 port = CTRL_PORT;
1526 u32 len_reg_l, len_reg_u;
1529 unsigned long flags;
1533 spin_lock_irqsave(&adapter->int_lock, flags);
1534 sdio_ireg = adapter->int_status;
1535 adapter->int_status = 0;
1536 spin_unlock_irqrestore(&adapter->int_lock, flags);
1541 /* Following interrupt is only for SDIO new mode */
1542 if (sdio_ireg & DN_LD_CMD_PORT_HOST_INT_STATUS && adapter->cmd_sent)
1543 adapter->cmd_sent = false;
1545 /* Following interrupt is only for SDIO new mode */
1546 if (sdio_ireg & UP_LD_CMD_PORT_HOST_INT_STATUS) {
1549 /* read the len of control packet */
1550 rx_len = card->mp_regs[reg->cmd_rd_len_1] << 8;
1551 rx_len |= (u16)card->mp_regs[reg->cmd_rd_len_0];
1552 rx_blocks = DIV_ROUND_UP(rx_len, MWIFIEX_SDIO_BLOCK_SIZE);
1553 if (rx_len <= adapter->intf_hdr_len ||
1554 (rx_blocks * MWIFIEX_SDIO_BLOCK_SIZE) >
1555 MWIFIEX_RX_DATA_BUF_SIZE)
1557 rx_len = (u16) (rx_blocks * MWIFIEX_SDIO_BLOCK_SIZE);
1558 mwifiex_dbg(adapter, INFO, "info: rx_len = %d\n", rx_len);
1560 skb = mwifiex_alloc_dma_align_buf(rx_len, GFP_KERNEL);
1564 skb_put(skb, rx_len);
1566 if (mwifiex_sdio_card_to_host(adapter, &pkt_type, skb->data,
1567 skb->len, adapter->ioport |
1569 mwifiex_dbg(adapter, ERROR,
1570 "%s: failed to card_to_host", __func__);
1571 dev_kfree_skb_any(skb);
1575 if ((pkt_type != MWIFIEX_TYPE_CMD) &&
1576 (pkt_type != MWIFIEX_TYPE_EVENT))
1577 mwifiex_dbg(adapter, ERROR,
1578 "%s:Received wrong packet on cmd port",
1581 mwifiex_decode_rx_packet(adapter, skb, pkt_type);
1584 if (sdio_ireg & DN_LD_HOST_INT_STATUS) {
1585 bitmap = (u32) card->mp_regs[reg->wr_bitmap_l];
1586 bitmap |= ((u32) card->mp_regs[reg->wr_bitmap_u]) << 8;
1587 if (card->supports_sdio_new_mode) {
1589 ((u32) card->mp_regs[reg->wr_bitmap_1l]) << 16;
1591 ((u32) card->mp_regs[reg->wr_bitmap_1u]) << 24;
1593 card->mp_wr_bitmap = bitmap;
1595 mwifiex_dbg(adapter, INTR,
1596 "int: DNLD: wr_bitmap=0x%x\n",
1597 card->mp_wr_bitmap);
1598 if (adapter->data_sent &&
1599 (card->mp_wr_bitmap & card->mp_data_port_mask)) {
1600 mwifiex_dbg(adapter, INTR,
1601 "info: <--- Tx DONE Interrupt --->\n");
1602 adapter->data_sent = false;
1606 /* As firmware will not generate download ready interrupt if the port
1607 updated is command port only, cmd_sent should be done for any SDIO
1609 if (card->has_control_mask && adapter->cmd_sent) {
1610 /* Check if firmware has attach buffer at command port and
1611 update just that in wr_bit_map. */
1612 card->mp_wr_bitmap |=
1613 (u32) card->mp_regs[reg->wr_bitmap_l] & CTRL_PORT_MASK;
1614 if (card->mp_wr_bitmap & CTRL_PORT_MASK)
1615 adapter->cmd_sent = false;
1618 mwifiex_dbg(adapter, INTR, "info: cmd_sent=%d data_sent=%d\n",
1619 adapter->cmd_sent, adapter->data_sent);
1620 if (sdio_ireg & UP_LD_HOST_INT_STATUS) {
1621 bitmap = (u32) card->mp_regs[reg->rd_bitmap_l];
1622 bitmap |= ((u32) card->mp_regs[reg->rd_bitmap_u]) << 8;
1623 if (card->supports_sdio_new_mode) {
1625 ((u32) card->mp_regs[reg->rd_bitmap_1l]) << 16;
1627 ((u32) card->mp_regs[reg->rd_bitmap_1u]) << 24;
1629 card->mp_rd_bitmap = bitmap;
1630 mwifiex_dbg(adapter, INTR,
1631 "int: UPLD: rd_bitmap=0x%x\n",
1632 card->mp_rd_bitmap);
1635 ret = mwifiex_get_rd_port(adapter, &port);
1637 mwifiex_dbg(adapter, INFO,
1638 "info: no more rd_port available\n");
1641 len_reg_l = reg->rd_len_p0_l + (port << 1);
1642 len_reg_u = reg->rd_len_p0_u + (port << 1);
1643 rx_len = ((u16) card->mp_regs[len_reg_u]) << 8;
1644 rx_len |= (u16) card->mp_regs[len_reg_l];
1645 mwifiex_dbg(adapter, INFO,
1646 "info: RX: port=%d rx_len=%u\n",
1649 (rx_len + MWIFIEX_SDIO_BLOCK_SIZE -
1650 1) / MWIFIEX_SDIO_BLOCK_SIZE;
1651 if (rx_len <= adapter->intf_hdr_len ||
1652 (card->mpa_rx.enabled &&
1653 ((rx_blocks * MWIFIEX_SDIO_BLOCK_SIZE) >
1654 card->mpa_rx.buf_size))) {
1655 mwifiex_dbg(adapter, ERROR,
1656 "invalid rx_len=%d\n",
1661 rx_len = (u16) (rx_blocks * MWIFIEX_SDIO_BLOCK_SIZE);
1662 mwifiex_dbg(adapter, INFO, "info: rx_len = %d\n",
1665 if (mwifiex_sdio_card_to_host_mp_aggr(adapter, rx_len,
1667 mwifiex_dbg(adapter, ERROR,
1668 "card_to_host_mpa failed: int status=%#x\n",
1679 if (mwifiex_read_reg(adapter, CONFIGURATION_REG, &cr))
1680 mwifiex_dbg(adapter, ERROR, "read CFG reg failed\n");
1682 mwifiex_dbg(adapter, INFO,
1683 "info: CFG reg val = %d\n", cr);
1685 if (mwifiex_write_reg(adapter, CONFIGURATION_REG, (cr | 0x04)))
1686 mwifiex_dbg(adapter, ERROR,
1687 "write CFG reg failed\n");
1689 mwifiex_dbg(adapter, INFO, "info: write success\n");
1691 if (mwifiex_read_reg(adapter, CONFIGURATION_REG, &cr))
1692 mwifiex_dbg(adapter, ERROR,
1693 "read CFG reg failed\n");
1695 mwifiex_dbg(adapter, INFO,
1696 "info: CFG reg val =%x\n", cr);
1702 * This function aggregates transmission buffers in driver and downloads
1703 * the aggregated packet to card.
1705 * The individual packets are aggregated by copying into an aggregation
1706 * buffer and then downloaded to the card. Previous unsent packets in the
1707 * aggregation buffer are pre-copied first before new packets are added.
1708 * Aggregation is done till there is space left in the aggregation buffer,
1709 * or till new packets are available.
1711 * The function will only download the packet to the card when aggregation
1712 * stops, otherwise it will just aggregate the packet in aggregation buffer
1715 static int mwifiex_host_to_card_mp_aggr(struct mwifiex_adapter *adapter,
1716 u8 *payload, u32 pkt_len, u32 port,
1719 struct sdio_mmc_card *card = adapter->card;
1721 s32 f_send_aggr_buf = 0;
1722 s32 f_send_cur_buf = 0;
1723 s32 f_precopy_cur_buf = 0;
1724 s32 f_postcopy_cur_buf = 0;
1728 if (!card->mpa_tx.enabled ||
1729 (card->has_control_mask && (port == CTRL_PORT)) ||
1730 (card->supports_sdio_new_mode && (port == CMD_PORT_SLCT))) {
1731 mwifiex_dbg(adapter, WARN,
1732 "info: %s: tx aggregation disabled\n",
1736 goto tx_curr_single;
1740 /* More pkt in TX queue */
1741 mwifiex_dbg(adapter, INFO,
1742 "info: %s: more packets in queue.\n",
1745 if (MP_TX_AGGR_IN_PROGRESS(card)) {
1746 if (MP_TX_AGGR_BUF_HAS_ROOM(card, pkt_len)) {
1747 f_precopy_cur_buf = 1;
1749 if (!(card->mp_wr_bitmap &
1750 (1 << card->curr_wr_port)) ||
1751 !MP_TX_AGGR_BUF_HAS_ROOM(
1752 card, pkt_len + next_pkt_len))
1753 f_send_aggr_buf = 1;
1755 /* No room in Aggr buf, send it */
1756 f_send_aggr_buf = 1;
1758 if (!(card->mp_wr_bitmap &
1759 (1 << card->curr_wr_port)))
1762 f_postcopy_cur_buf = 1;
1765 if (MP_TX_AGGR_BUF_HAS_ROOM(card, pkt_len) &&
1766 (card->mp_wr_bitmap & (1 << card->curr_wr_port)))
1767 f_precopy_cur_buf = 1;
1772 /* Last pkt in TX queue */
1773 mwifiex_dbg(adapter, INFO,
1774 "info: %s: Last packet in Tx Queue.\n",
1777 if (MP_TX_AGGR_IN_PROGRESS(card)) {
1778 /* some packs in Aggr buf already */
1779 f_send_aggr_buf = 1;
1781 if (MP_TX_AGGR_BUF_HAS_ROOM(card, pkt_len))
1782 f_precopy_cur_buf = 1;
1784 /* No room in Aggr buf, send it */
1791 if (f_precopy_cur_buf) {
1792 mwifiex_dbg(adapter, DATA,
1793 "data: %s: precopy current buffer\n",
1795 MP_TX_AGGR_BUF_PUT(card, payload, pkt_len, port);
1797 if (MP_TX_AGGR_PKT_LIMIT_REACHED(card) ||
1798 mp_tx_aggr_port_limit_reached(card))
1799 /* No more pkts allowed in Aggr buf, send it */
1800 f_send_aggr_buf = 1;
1803 if (f_send_aggr_buf) {
1804 mwifiex_dbg(adapter, DATA,
1805 "data: %s: send aggr buffer: %d %d\n",
1806 __func__, card->mpa_tx.start_port,
1807 card->mpa_tx.ports);
1808 if (card->supports_sdio_new_mode) {
1812 for (i = 0, port_count = 0; i < card->max_ports; i++)
1813 if (card->mpa_tx.ports & BIT(i))
1816 /* Writing data from "start_port + 0" to "start_port +
1817 * port_count -1", so decrease the count by 1
1820 mport = (adapter->ioport | SDIO_MPA_ADDR_BASE |
1821 (port_count << 8)) + card->mpa_tx.start_port;
1823 mport = (adapter->ioport | SDIO_MPA_ADDR_BASE |
1824 (card->mpa_tx.ports << 4)) +
1825 card->mpa_tx.start_port;
1828 if (card->mpa_tx.pkt_cnt == 1)
1829 mport = adapter->ioport + card->mpa_tx.start_port;
1831 ret = mwifiex_write_data_to_card(adapter, card->mpa_tx.buf,
1832 card->mpa_tx.buf_len, mport);
1834 /* Save the last multi port tx aggreagation info to debug log */
1835 index = adapter->dbg.last_sdio_mp_index;
1836 index = (index + 1) % MWIFIEX_DBG_SDIO_MP_NUM;
1837 adapter->dbg.last_sdio_mp_index = index;
1838 adapter->dbg.last_mp_wr_ports[index] = mport;
1839 adapter->dbg.last_mp_wr_bitmap[index] = card->mp_wr_bitmap;
1840 adapter->dbg.last_mp_wr_len[index] = card->mpa_tx.buf_len;
1841 adapter->dbg.last_mp_curr_wr_port[index] = card->curr_wr_port;
1843 MP_TX_AGGR_BUF_RESET(card);
1847 if (f_send_cur_buf) {
1848 mwifiex_dbg(adapter, DATA,
1849 "data: %s: send current buffer %d\n",
1851 ret = mwifiex_write_data_to_card(adapter, payload, pkt_len,
1852 adapter->ioport + port);
1855 if (f_postcopy_cur_buf) {
1856 mwifiex_dbg(adapter, DATA,
1857 "data: %s: postcopy current buffer\n",
1859 MP_TX_AGGR_BUF_PUT(card, payload, pkt_len, port);
1866 * This function downloads data from driver to card.
1868 * Both commands and data packets are transferred to the card by this
1871 * This function adds the SDIO specific header to the front of the buffer
1872 * before transferring. The header contains the length of the packet and
1873 * the type. The firmware handles the packets based upon this set type.
1875 static int mwifiex_sdio_host_to_card(struct mwifiex_adapter *adapter,
1876 u8 type, struct sk_buff *skb,
1877 struct mwifiex_tx_param *tx_param)
1879 struct sdio_mmc_card *card = adapter->card;
1883 u32 port = CTRL_PORT;
1884 u8 *payload = (u8 *)skb->data;
1885 u32 pkt_len = skb->len;
1887 /* Allocate buffer and copy payload */
1888 blk_size = MWIFIEX_SDIO_BLOCK_SIZE;
1889 buf_block_len = (pkt_len + blk_size - 1) / blk_size;
1890 put_unaligned_le16((u16)pkt_len, payload + 0);
1891 put_unaligned_le16((u32)type, payload + 2);
1895 * This is SDIO specific header
1897 * u16 type (MWIFIEX_TYPE_DATA = 0, MWIFIEX_TYPE_CMD = 1,
1898 * MWIFIEX_TYPE_EVENT = 3)
1900 if (type == MWIFIEX_TYPE_DATA) {
1901 ret = mwifiex_get_wr_port_data(adapter, &port);
1903 mwifiex_dbg(adapter, ERROR,
1904 "%s: no wr_port available\n",
1909 adapter->cmd_sent = true;
1910 /* Type must be MWIFIEX_TYPE_CMD */
1912 if (pkt_len <= adapter->intf_hdr_len ||
1913 pkt_len > MWIFIEX_UPLD_SIZE)
1914 mwifiex_dbg(adapter, ERROR,
1915 "%s: payload=%p, nb=%d\n",
1916 __func__, payload, pkt_len);
1918 if (card->supports_sdio_new_mode)
1919 port = CMD_PORT_SLCT;
1922 /* Transfer data to card */
1923 pkt_len = buf_block_len * blk_size;
1926 ret = mwifiex_host_to_card_mp_aggr(adapter, payload, pkt_len,
1927 port, tx_param->next_pkt_len
1930 ret = mwifiex_host_to_card_mp_aggr(adapter, payload, pkt_len,
1934 if (type == MWIFIEX_TYPE_CMD)
1935 adapter->cmd_sent = false;
1936 if (type == MWIFIEX_TYPE_DATA) {
1937 adapter->data_sent = false;
1938 /* restore curr_wr_port in error cases */
1939 card->curr_wr_port = port;
1940 card->mp_wr_bitmap |= (u32)(1 << card->curr_wr_port);
1943 if (type == MWIFIEX_TYPE_DATA) {
1944 if (!(card->mp_wr_bitmap & (1 << card->curr_wr_port)))
1945 adapter->data_sent = true;
1947 adapter->data_sent = false;
1955 * This function allocates the MPA Tx and Rx buffers.
1957 static int mwifiex_alloc_sdio_mpa_buffers(struct mwifiex_adapter *adapter,
1958 u32 mpa_tx_buf_size, u32 mpa_rx_buf_size)
1960 struct sdio_mmc_card *card = adapter->card;
1964 card->mpa_tx.buf = kzalloc(mpa_tx_buf_size, GFP_KERNEL);
1965 if (!card->mpa_tx.buf) {
1970 card->mpa_tx.buf_size = mpa_tx_buf_size;
1972 rx_buf_size = max_t(u32, mpa_rx_buf_size,
1973 (u32)SDIO_MAX_AGGR_BUF_SIZE);
1974 card->mpa_rx.buf = kzalloc(rx_buf_size, GFP_KERNEL);
1975 if (!card->mpa_rx.buf) {
1980 card->mpa_rx.buf_size = rx_buf_size;
1984 kfree(card->mpa_tx.buf);
1985 kfree(card->mpa_rx.buf);
1986 card->mpa_tx.buf_size = 0;
1987 card->mpa_rx.buf_size = 0;
1994 * This function unregisters the SDIO device.
1996 * The SDIO IRQ is released, the function is disabled and driver
1997 * data is set to null.
2000 mwifiex_unregister_dev(struct mwifiex_adapter *adapter)
2002 struct sdio_mmc_card *card = adapter->card;
2004 if (adapter->card) {
2005 card->adapter = NULL;
2006 sdio_claim_host(card->func);
2007 sdio_disable_func(card->func);
2008 sdio_release_host(card->func);
2013 * This function registers the SDIO device.
2015 * SDIO IRQ is claimed, block size is set and driver data is initialized.
2017 static int mwifiex_register_dev(struct mwifiex_adapter *adapter)
2020 struct sdio_mmc_card *card = adapter->card;
2021 struct sdio_func *func = card->func;
2023 /* save adapter pointer in card */
2024 card->adapter = adapter;
2025 adapter->tx_buf_size = card->tx_buf_size;
2027 sdio_claim_host(func);
2029 /* Set block size */
2030 ret = sdio_set_block_size(card->func, MWIFIEX_SDIO_BLOCK_SIZE);
2031 sdio_release_host(func);
2033 mwifiex_dbg(adapter, ERROR,
2034 "cannot set SDIO block size\n");
2038 strcpy(adapter->fw_name, card->firmware);
2039 if (card->fw_dump_enh) {
2040 adapter->mem_type_mapping_tbl = generic_mem_type_map;
2041 adapter->num_mem_types = 1;
2043 adapter->mem_type_mapping_tbl = mem_type_mapping_tbl;
2044 adapter->num_mem_types = ARRAY_SIZE(mem_type_mapping_tbl);
2051 * This function initializes the SDIO driver.
2053 * The following initializations steps are followed -
2054 * - Read the Host interrupt status register to acknowledge
2055 * the first interrupt got from bootloader
2056 * - Disable host interrupt mask register
2058 * - Initialize SDIO variables in card
2059 * - Allocate MP registers
2060 * - Allocate MPA Tx and Rx buffers
2062 static int mwifiex_init_sdio(struct mwifiex_adapter *adapter)
2064 struct sdio_mmc_card *card = adapter->card;
2065 const struct mwifiex_sdio_card_reg *reg = card->reg;
2069 sdio_set_drvdata(card->func, card);
2072 * Read the host_int_status_reg for ACK the first interrupt got
2073 * from the bootloader. If we don't do this we get a interrupt
2074 * as soon as we register the irq.
2076 mwifiex_read_reg(adapter, card->reg->host_int_status_reg, &sdio_ireg);
2078 /* Get SDIO ioport */
2079 mwifiex_init_sdio_ioport(adapter);
2081 /* Initialize SDIO variables in card */
2082 card->mp_rd_bitmap = 0;
2083 card->mp_wr_bitmap = 0;
2084 card->curr_rd_port = reg->start_rd_port;
2085 card->curr_wr_port = reg->start_wr_port;
2087 card->mp_data_port_mask = reg->data_port_mask;
2089 card->mpa_tx.buf_len = 0;
2090 card->mpa_tx.pkt_cnt = 0;
2091 card->mpa_tx.start_port = 0;
2093 card->mpa_tx.enabled = 1;
2094 card->mpa_tx.pkt_aggr_limit = card->mp_agg_pkt_limit;
2096 card->mpa_rx.buf_len = 0;
2097 card->mpa_rx.pkt_cnt = 0;
2098 card->mpa_rx.start_port = 0;
2100 card->mpa_rx.enabled = 1;
2101 card->mpa_rx.pkt_aggr_limit = card->mp_agg_pkt_limit;
2103 /* Allocate buffers for SDIO MP-A */
2104 card->mp_regs = kzalloc(reg->max_mp_regs, GFP_KERNEL);
2108 /* Allocate skb pointer buffers */
2109 card->mpa_rx.skb_arr = kcalloc(card->mp_agg_pkt_limit, sizeof(void *),
2111 if (!card->mpa_rx.skb_arr) {
2112 kfree(card->mp_regs);
2116 card->mpa_rx.len_arr = kcalloc(card->mp_agg_pkt_limit,
2117 sizeof(*card->mpa_rx.len_arr),
2119 if (!card->mpa_rx.len_arr) {
2120 kfree(card->mp_regs);
2121 kfree(card->mpa_rx.skb_arr);
2125 ret = mwifiex_alloc_sdio_mpa_buffers(adapter,
2126 card->mp_tx_agg_buf_size,
2127 card->mp_rx_agg_buf_size);
2129 /* Allocate 32k MPA Tx/Rx buffers if 64k memory allocation fails */
2130 if (ret && (card->mp_tx_agg_buf_size == MWIFIEX_MP_AGGR_BUF_SIZE_MAX ||
2131 card->mp_rx_agg_buf_size == MWIFIEX_MP_AGGR_BUF_SIZE_MAX)) {
2132 /* Disable rx single port aggregation */
2133 adapter->host_disable_sdio_rx_aggr = true;
2135 ret = mwifiex_alloc_sdio_mpa_buffers
2136 (adapter, MWIFIEX_MP_AGGR_BUF_SIZE_32K,
2137 MWIFIEX_MP_AGGR_BUF_SIZE_32K);
2139 /* Disable multi port aggregation */
2140 card->mpa_tx.enabled = 0;
2141 card->mpa_rx.enabled = 0;
2145 adapter->auto_tdls = card->can_auto_tdls;
2146 adapter->ext_scan = card->can_ext_scan;
2151 * This function resets the MPA Tx and Rx buffers.
2153 static void mwifiex_cleanup_mpa_buf(struct mwifiex_adapter *adapter)
2155 struct sdio_mmc_card *card = adapter->card;
2157 MP_TX_AGGR_BUF_RESET(card);
2158 MP_RX_AGGR_BUF_RESET(card);
2162 * This function cleans up the allocated card buffers.
2164 * The following are freed by this function -
2169 static void mwifiex_cleanup_sdio(struct mwifiex_adapter *adapter)
2171 struct sdio_mmc_card *card = adapter->card;
2173 cancel_work_sync(&card->work);
2175 kfree(card->mp_regs);
2176 kfree(card->mpa_rx.skb_arr);
2177 kfree(card->mpa_rx.len_arr);
2178 kfree(card->mpa_tx.buf);
2179 kfree(card->mpa_rx.buf);
2183 * This function updates the MP end port in card.
2186 mwifiex_update_mp_end_port(struct mwifiex_adapter *adapter, u16 port)
2188 struct sdio_mmc_card *card = adapter->card;
2189 const struct mwifiex_sdio_card_reg *reg = card->reg;
2192 card->mp_end_port = port;
2194 card->mp_data_port_mask = reg->data_port_mask;
2196 if (reg->start_wr_port) {
2197 for (i = 1; i <= card->max_ports - card->mp_end_port; i++)
2198 card->mp_data_port_mask &=
2199 ~(1 << (card->max_ports - i));
2202 card->curr_wr_port = reg->start_wr_port;
2204 mwifiex_dbg(adapter, CMD,
2205 "cmd: mp_end_port %d, data port mask 0x%x\n",
2206 port, card->mp_data_port_mask);
2209 static void mwifiex_sdio_card_reset_work(struct mwifiex_adapter *adapter)
2211 struct sdio_mmc_card *card = adapter->card;
2212 struct sdio_func *func = card->func;
2215 mwifiex_shutdown_sw(adapter);
2217 /* power cycle the adapter */
2218 sdio_claim_host(func);
2219 mmc_hw_reset(func->card->host);
2220 sdio_release_host(func);
2222 /* Previous save_adapter won't be valid after this. We will cancel
2223 * pending work requests.
2225 clear_bit(MWIFIEX_IFACE_WORK_DEVICE_DUMP, &card->work_flags);
2226 clear_bit(MWIFIEX_IFACE_WORK_CARD_RESET, &card->work_flags);
2228 ret = mwifiex_reinit_sw(adapter);
2230 dev_err(&func->dev, "reinit failed: %d\n", ret);
2233 /* This function read/write firmware */
2235 rdwr_status mwifiex_sdio_rdwr_firmware(struct mwifiex_adapter *adapter,
2238 struct sdio_mmc_card *card = adapter->card;
2242 sdio_writeb(card->func, card->reg->fw_dump_host_ready,
2243 card->reg->fw_dump_ctrl, &ret);
2245 mwifiex_dbg(adapter, ERROR, "SDIO Write ERR\n");
2246 return RDWR_STATUS_FAILURE;
2248 for (tries = 0; tries < MAX_POLL_TRIES; tries++) {
2249 ctrl_data = sdio_readb(card->func, card->reg->fw_dump_ctrl,
2252 mwifiex_dbg(adapter, ERROR, "SDIO read err\n");
2253 return RDWR_STATUS_FAILURE;
2255 if (ctrl_data == FW_DUMP_DONE)
2257 if (doneflag && ctrl_data == doneflag)
2258 return RDWR_STATUS_DONE;
2259 if (ctrl_data != card->reg->fw_dump_host_ready) {
2260 mwifiex_dbg(adapter, WARN,
2261 "The ctrl reg was changed, re-try again\n");
2262 sdio_writeb(card->func, card->reg->fw_dump_host_ready,
2263 card->reg->fw_dump_ctrl, &ret);
2265 mwifiex_dbg(adapter, ERROR, "SDIO write err\n");
2266 return RDWR_STATUS_FAILURE;
2269 usleep_range(100, 200);
2271 if (ctrl_data == card->reg->fw_dump_host_ready) {
2272 mwifiex_dbg(adapter, ERROR,
2273 "Fail to pull ctrl_data\n");
2274 return RDWR_STATUS_FAILURE;
2277 return RDWR_STATUS_SUCCESS;
2280 /* This function dump firmware memory to file */
2281 static void mwifiex_sdio_fw_dump(struct mwifiex_adapter *adapter)
2283 struct sdio_mmc_card *card = adapter->card;
2285 unsigned int reg, reg_start, reg_end;
2286 u8 *dbg_ptr, *end_ptr, dump_num, idx, i, read_reg, doneflag = 0;
2287 enum rdwr_status stat;
2290 if (!card->can_dump_fw)
2293 for (idx = 0; idx < ARRAY_SIZE(mem_type_mapping_tbl); idx++) {
2294 struct memory_type_mapping *entry = &mem_type_mapping_tbl[idx];
2296 if (entry->mem_ptr) {
2297 vfree(entry->mem_ptr);
2298 entry->mem_ptr = NULL;
2300 entry->mem_size = 0;
2303 mwifiex_pm_wakeup_card(adapter);
2304 sdio_claim_host(card->func);
2306 mwifiex_dbg(adapter, MSG, "== mwifiex firmware dump start ==\n");
2308 stat = mwifiex_sdio_rdwr_firmware(adapter, doneflag);
2309 if (stat == RDWR_STATUS_FAILURE)
2312 reg = card->reg->fw_dump_start;
2313 /* Read the number of the memories which will dump */
2314 dump_num = sdio_readb(card->func, reg, &ret);
2316 mwifiex_dbg(adapter, ERROR, "SDIO read memory length err\n");
2320 /* Read the length of every memory which will dump */
2321 for (idx = 0; idx < dump_num; idx++) {
2322 struct memory_type_mapping *entry = &mem_type_mapping_tbl[idx];
2324 stat = mwifiex_sdio_rdwr_firmware(adapter, doneflag);
2325 if (stat == RDWR_STATUS_FAILURE)
2329 reg = card->reg->fw_dump_start;
2330 for (i = 0; i < 4; i++) {
2331 read_reg = sdio_readb(card->func, reg, &ret);
2333 mwifiex_dbg(adapter, ERROR, "SDIO read err\n");
2336 memory_size |= (read_reg << i*8);
2340 if (memory_size == 0) {
2341 mwifiex_dbg(adapter, DUMP, "Firmware dump Finished!\n");
2342 ret = mwifiex_write_reg(adapter,
2343 card->reg->fw_dump_ctrl,
2346 mwifiex_dbg(adapter, ERROR, "SDIO write err\n");
2352 mwifiex_dbg(adapter, DUMP,
2353 "%s_SIZE=0x%x\n", entry->mem_name, memory_size);
2354 entry->mem_ptr = vmalloc(memory_size + 1);
2355 entry->mem_size = memory_size;
2356 if (!entry->mem_ptr) {
2357 mwifiex_dbg(adapter, ERROR, "Vmalloc %s failed\n",
2361 dbg_ptr = entry->mem_ptr;
2362 end_ptr = dbg_ptr + memory_size;
2364 doneflag = entry->done_flag;
2365 mwifiex_dbg(adapter, DUMP,
2366 "Start %s output, please wait...\n",
2370 stat = mwifiex_sdio_rdwr_firmware(adapter, doneflag);
2371 if (stat == RDWR_STATUS_FAILURE)
2374 reg_start = card->reg->fw_dump_start;
2375 reg_end = card->reg->fw_dump_end;
2376 for (reg = reg_start; reg <= reg_end; reg++) {
2377 *dbg_ptr = sdio_readb(card->func, reg, &ret);
2379 mwifiex_dbg(adapter, ERROR,
2383 if (dbg_ptr < end_ptr)
2386 mwifiex_dbg(adapter, ERROR,
2387 "Allocated buf not enough\n");
2390 if (stat != RDWR_STATUS_DONE)
2393 mwifiex_dbg(adapter, DUMP, "%s done: size=0x%tx\n",
2394 entry->mem_name, dbg_ptr - entry->mem_ptr);
2398 mwifiex_dbg(adapter, MSG, "== mwifiex firmware dump end ==\n");
2401 sdio_release_host(card->func);
2404 static void mwifiex_sdio_generic_fw_dump(struct mwifiex_adapter *adapter)
2406 struct sdio_mmc_card *card = adapter->card;
2407 struct memory_type_mapping *entry = &generic_mem_type_map[0];
2408 unsigned int reg, reg_start, reg_end;
2409 u8 start_flag = 0, done_flag = 0;
2410 u8 *dbg_ptr, *end_ptr;
2411 enum rdwr_status stat;
2412 int ret = -1, tries;
2414 if (!card->fw_dump_enh)
2417 if (entry->mem_ptr) {
2418 vfree(entry->mem_ptr);
2419 entry->mem_ptr = NULL;
2421 entry->mem_size = 0;
2423 mwifiex_pm_wakeup_card(adapter);
2424 sdio_claim_host(card->func);
2426 mwifiex_dbg(adapter, MSG, "== mwifiex firmware dump start ==\n");
2428 stat = mwifiex_sdio_rdwr_firmware(adapter, done_flag);
2429 if (stat == RDWR_STATUS_FAILURE)
2432 reg_start = card->reg->fw_dump_start;
2433 reg_end = card->reg->fw_dump_end;
2434 for (reg = reg_start; reg <= reg_end; reg++) {
2435 for (tries = 0; tries < MAX_POLL_TRIES; tries++) {
2436 start_flag = sdio_readb(card->func, reg, &ret);
2438 mwifiex_dbg(adapter, ERROR,
2442 if (start_flag == 0)
2444 if (tries == MAX_POLL_TRIES) {
2445 mwifiex_dbg(adapter, ERROR,
2446 "FW not ready to dump\n");
2451 usleep_range(100, 200);
2454 entry->mem_ptr = vmalloc(0xf0000 + 1);
2455 if (!entry->mem_ptr) {
2459 dbg_ptr = entry->mem_ptr;
2460 entry->mem_size = 0xf0000;
2461 end_ptr = dbg_ptr + entry->mem_size;
2463 done_flag = entry->done_flag;
2464 mwifiex_dbg(adapter, DUMP,
2465 "Start %s output, please wait...\n", entry->mem_name);
2468 stat = mwifiex_sdio_rdwr_firmware(adapter, done_flag);
2469 if (stat == RDWR_STATUS_FAILURE)
2471 for (reg = reg_start; reg <= reg_end; reg++) {
2472 *dbg_ptr = sdio_readb(card->func, reg, &ret);
2474 mwifiex_dbg(adapter, ERROR,
2479 if (dbg_ptr >= end_ptr) {
2482 tmp_ptr = vmalloc(entry->mem_size + 0x4000 + 1);
2486 memcpy(tmp_ptr, entry->mem_ptr,
2488 vfree(entry->mem_ptr);
2489 entry->mem_ptr = tmp_ptr;
2491 dbg_ptr = entry->mem_ptr + entry->mem_size;
2492 entry->mem_size += 0x4000;
2493 end_ptr = entry->mem_ptr + entry->mem_size;
2496 if (stat == RDWR_STATUS_DONE) {
2497 entry->mem_size = dbg_ptr - entry->mem_ptr;
2498 mwifiex_dbg(adapter, DUMP, "dump %s done size=0x%x\n",
2499 entry->mem_name, entry->mem_size);
2504 mwifiex_dbg(adapter, MSG, "== mwifiex firmware dump end ==\n");
2508 mwifiex_dbg(adapter, ERROR, "firmware dump failed\n");
2509 if (entry->mem_ptr) {
2510 vfree(entry->mem_ptr);
2511 entry->mem_ptr = NULL;
2513 entry->mem_size = 0;
2515 sdio_release_host(card->func);
2518 static void mwifiex_sdio_device_dump_work(struct mwifiex_adapter *adapter)
2520 struct sdio_mmc_card *card = adapter->card;
2522 adapter->devdump_data = vzalloc(MWIFIEX_FW_DUMP_SIZE);
2523 if (!adapter->devdump_data) {
2524 mwifiex_dbg(adapter, ERROR,
2525 "vzalloc devdump data failure!\n");
2529 mwifiex_drv_info_dump(adapter);
2530 if (card->fw_dump_enh)
2531 mwifiex_sdio_generic_fw_dump(adapter);
2533 mwifiex_sdio_fw_dump(adapter);
2534 mwifiex_prepare_fw_dump_info(adapter);
2535 mwifiex_upload_device_dump(adapter);
2538 static void mwifiex_sdio_work(struct work_struct *work)
2540 struct sdio_mmc_card *card =
2541 container_of(work, struct sdio_mmc_card, work);
2543 if (test_and_clear_bit(MWIFIEX_IFACE_WORK_DEVICE_DUMP,
2545 mwifiex_sdio_device_dump_work(card->adapter);
2546 if (test_and_clear_bit(MWIFIEX_IFACE_WORK_CARD_RESET,
2548 mwifiex_sdio_card_reset_work(card->adapter);
2551 /* This function resets the card */
2552 static void mwifiex_sdio_card_reset(struct mwifiex_adapter *adapter)
2554 struct sdio_mmc_card *card = adapter->card;
2556 if (!test_and_set_bit(MWIFIEX_IFACE_WORK_CARD_RESET, &card->work_flags))
2557 schedule_work(&card->work);
2560 /* This function dumps FW information */
2561 static void mwifiex_sdio_device_dump(struct mwifiex_adapter *adapter)
2563 struct sdio_mmc_card *card = adapter->card;
2565 if (!test_and_set_bit(MWIFIEX_IFACE_WORK_DEVICE_DUMP,
2567 schedule_work(&card->work);
2570 /* Function to dump SDIO function registers and SDIO scratch registers in case
2574 mwifiex_sdio_reg_dump(struct mwifiex_adapter *adapter, char *drv_buf)
2577 struct sdio_mmc_card *cardp = adapter->card;
2579 u8 count, func, data, index = 0, size = 0;
2580 u8 reg, reg_start, reg_end;
2581 char buf[256], *ptr;
2586 mwifiex_dbg(adapter, MSG, "SDIO register dump start\n");
2588 mwifiex_pm_wakeup_card(adapter);
2590 sdio_claim_host(cardp->func);
2592 for (count = 0; count < 5; count++) {
2593 memset(buf, 0, sizeof(buf));
2598 /* Read the registers of SDIO function0 */
2604 /* Read the registers of SDIO function1 */
2606 reg_start = cardp->reg->func1_dump_reg_start;
2607 reg_end = cardp->reg->func1_dump_reg_end;
2612 reg_start = cardp->reg->func1_spec_reg_table[index++];
2613 size = cardp->reg->func1_spec_reg_num;
2614 reg_end = cardp->reg->func1_spec_reg_table[size-1];
2617 /* Read the scratch registers of SDIO function1 */
2621 reg_start = cardp->reg->func1_scratch_reg;
2622 reg_end = reg_start + MWIFIEX_SDIO_SCRATCH_SIZE;
2626 ptr += sprintf(ptr, "SDIO Func%d (%#x-%#x): ",
2627 func, reg_start, reg_end);
2629 ptr += sprintf(ptr, "SDIO Func%d: ", func);
2631 for (reg = reg_start; reg <= reg_end;) {
2633 data = sdio_f0_readb(cardp->func, reg, &ret);
2635 data = sdio_readb(cardp->func, reg, &ret);
2638 ptr += sprintf(ptr, "(%#x) ", reg);
2640 ptr += sprintf(ptr, "%02x ", data);
2642 ptr += sprintf(ptr, "ERR");
2646 if (count == 2 && reg < reg_end)
2647 reg = cardp->reg->func1_spec_reg_table[index++];
2652 mwifiex_dbg(adapter, MSG, "%s\n", buf);
2653 p += sprintf(p, "%s\n", buf);
2656 sdio_release_host(cardp->func);
2658 mwifiex_dbg(adapter, MSG, "SDIO register dump end\n");
2663 /* sdio device/function initialization, code is extracted
2664 * from init_if handler and register_dev handler.
2666 static void mwifiex_sdio_up_dev(struct mwifiex_adapter *adapter)
2668 struct sdio_mmc_card *card = adapter->card;
2671 sdio_claim_host(card->func);
2672 sdio_enable_func(card->func);
2673 sdio_set_block_size(card->func, MWIFIEX_SDIO_BLOCK_SIZE);
2674 sdio_release_host(card->func);
2676 /* tx_buf_size might be changed to 3584 by firmware during
2677 * data transfer, we will reset to default size.
2679 adapter->tx_buf_size = card->tx_buf_size;
2681 /* Read the host_int_status_reg for ACK the first interrupt got
2682 * from the bootloader. If we don't do this we get a interrupt
2683 * as soon as we register the irq.
2685 mwifiex_read_reg(adapter, card->reg->host_int_status_reg, &sdio_ireg);
2687 mwifiex_init_sdio_ioport(adapter);
2690 static struct mwifiex_if_ops sdio_ops = {
2691 .init_if = mwifiex_init_sdio,
2692 .cleanup_if = mwifiex_cleanup_sdio,
2693 .check_fw_status = mwifiex_check_fw_status,
2694 .check_winner_status = mwifiex_check_winner_status,
2695 .prog_fw = mwifiex_prog_fw_w_helper,
2696 .register_dev = mwifiex_register_dev,
2697 .unregister_dev = mwifiex_unregister_dev,
2698 .enable_int = mwifiex_sdio_enable_host_int,
2699 .disable_int = mwifiex_sdio_disable_host_int,
2700 .process_int_status = mwifiex_process_int_status,
2701 .host_to_card = mwifiex_sdio_host_to_card,
2702 .wakeup = mwifiex_pm_wakeup_card,
2703 .wakeup_complete = mwifiex_pm_wakeup_card_complete,
2706 .update_mp_end_port = mwifiex_update_mp_end_port,
2707 .cleanup_mpa_buf = mwifiex_cleanup_mpa_buf,
2708 .cmdrsp_complete = mwifiex_sdio_cmdrsp_complete,
2709 .event_complete = mwifiex_sdio_event_complete,
2710 .dnld_fw = mwifiex_sdio_dnld_fw,
2711 .card_reset = mwifiex_sdio_card_reset,
2712 .reg_dump = mwifiex_sdio_reg_dump,
2713 .device_dump = mwifiex_sdio_device_dump,
2714 .deaggr_pkt = mwifiex_deaggr_sdio_pkt,
2715 .up_dev = mwifiex_sdio_up_dev,
2718 module_driver(mwifiex_sdio, sdio_register_driver, sdio_unregister_driver);
2720 MODULE_AUTHOR("Marvell International Ltd.");
2721 MODULE_DESCRIPTION("Marvell WiFi-Ex SDIO Driver version " SDIO_VERSION);
2722 MODULE_VERSION(SDIO_VERSION);
2723 MODULE_LICENSE("GPL v2");
2724 MODULE_FIRMWARE(SD8786_DEFAULT_FW_NAME);
2725 MODULE_FIRMWARE(SD8787_DEFAULT_FW_NAME);
2726 MODULE_FIRMWARE(SD8797_DEFAULT_FW_NAME);
2727 MODULE_FIRMWARE(SD8897_DEFAULT_FW_NAME);
2728 MODULE_FIRMWARE(SD8887_DEFAULT_FW_NAME);
2729 MODULE_FIRMWARE(SD8997_DEFAULT_FW_NAME);