Commit | Line | Data |
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5e6e3a92 BZ |
1 | /* |
2 | * Marvell Wireless LAN device driver: SDIO specific handling | |
3 | * | |
65da33f5 | 4 | * Copyright (C) 2011-2014, Marvell International Ltd. |
5e6e3a92 BZ |
5 | * |
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. | |
13 | * | |
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. | |
18 | */ | |
19 | ||
20 | #include <linux/firmware.h> | |
21 | ||
22 | #include "decl.h" | |
23 | #include "ioctl.h" | |
24 | #include "util.h" | |
25 | #include "fw.h" | |
26 | #include "main.h" | |
27 | #include "wmm.h" | |
28 | #include "11n.h" | |
29 | #include "sdio.h" | |
30 | ||
31 | ||
32 | #define SDIO_VERSION "1.0" | |
33 | ||
287546df AK |
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 | |
37 | * differently. | |
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. | |
41 | * | |
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. | |
46 | */ | |
47 | static u8 user_rmmod; | |
48 | ||
5e6e3a92 BZ |
49 | static struct mwifiex_if_ops sdio_ops; |
50 | ||
51 | static struct semaphore add_remove_card_sem; | |
52 | ||
54881c6b AK |
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}, | |
69 | }; | |
70 | ||
5e6e3a92 BZ |
71 | /* |
72 | * SDIO probe. | |
73 | * | |
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 | |
77 | * interface. | |
78 | */ | |
79 | static int | |
80 | mwifiex_sdio_probe(struct sdio_func *func, const struct sdio_device_id *id) | |
81 | { | |
270e58e8 | 82 | int ret; |
5e6e3a92 BZ |
83 | struct sdio_mmc_card *card = NULL; |
84 | ||
85 | pr_debug("info: vendor=0x%4.04X device=0x%4.04X class=%d function=%d\n", | |
5dbd326c | 86 | func->vendor, func->device, func->class, func->num); |
5e6e3a92 BZ |
87 | |
88 | card = kzalloc(sizeof(struct sdio_mmc_card), GFP_KERNEL); | |
e404decb | 89 | if (!card) |
5e6e3a92 | 90 | return -ENOMEM; |
5e6e3a92 BZ |
91 | |
92 | card->func = func; | |
93 | ||
94 | func->card->quirks |= MMC_QUIRK_BLKSZ_FOR_BYTE_MODE; | |
95 | ||
05889f82 AK |
96 | if (id->driver_data) { |
97 | struct mwifiex_sdio_device *data = (void *)id->driver_data; | |
98 | ||
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; | |
b60186f8 YAP |
103 | card->supports_sdio_new_mode = data->supports_sdio_new_mode; |
104 | card->has_control_mask = data->has_control_mask; | |
828cf222 | 105 | card->tx_buf_size = data->tx_buf_size; |
e1aa93a4 AK |
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; | |
b4e8aebb AP |
108 | card->can_dump_fw = data->can_dump_fw; |
109 | card->can_auto_tdls = data->can_auto_tdls; | |
1fe192d8 | 110 | card->can_ext_scan = data->can_ext_scan; |
05889f82 AK |
111 | } |
112 | ||
5e6e3a92 BZ |
113 | sdio_claim_host(func); |
114 | ret = sdio_enable_func(func); | |
115 | sdio_release_host(func); | |
116 | ||
117 | if (ret) { | |
118 | pr_err("%s: failed to enable function\n", __func__); | |
b53575ec | 119 | kfree(card); |
5e6e3a92 BZ |
120 | return -EIO; |
121 | } | |
122 | ||
d930faee AK |
123 | if (mwifiex_add_card(card, &add_remove_card_sem, &sdio_ops, |
124 | MWIFIEX_SDIO)) { | |
5e6e3a92 BZ |
125 | pr_err("%s: add card failed\n", __func__); |
126 | kfree(card); | |
127 | sdio_claim_host(func); | |
128 | ret = sdio_disable_func(func); | |
129 | sdio_release_host(func); | |
130 | ret = -1; | |
131 | } | |
132 | ||
133 | return ret; | |
134 | } | |
135 | ||
2cdf359a AK |
136 | /* |
137 | * SDIO resume. | |
138 | * | |
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. | |
142 | * | |
143 | * If already not resumed, this function turns on the traffic and | |
144 | * sends a host sleep cancel request to the firmware. | |
145 | */ | |
146 | static int mwifiex_sdio_resume(struct device *dev) | |
147 | { | |
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; | |
152 | ||
153 | if (func) { | |
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"); | |
158 | return 0; | |
159 | } | |
160 | } else { | |
161 | pr_err("resume: sdio_func is not specified\n"); | |
162 | return 0; | |
163 | } | |
164 | ||
165 | adapter = card->adapter; | |
166 | ||
167 | if (!adapter->is_suspended) { | |
168 | dev_warn(adapter->dev, "device already resumed\n"); | |
169 | return 0; | |
170 | } | |
171 | ||
172 | adapter->is_suspended = false; | |
173 | ||
174 | /* Disable Host Sleep */ | |
175 | mwifiex_cancel_hs(mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA), | |
176 | MWIFIEX_ASYNC_CMD); | |
177 | ||
178 | return 0; | |
179 | } | |
180 | ||
5e6e3a92 BZ |
181 | /* |
182 | * SDIO remove. | |
183 | * | |
184 | * This function removes the interface and frees up the card structure. | |
185 | */ | |
186 | static void | |
187 | mwifiex_sdio_remove(struct sdio_func *func) | |
188 | { | |
189 | struct sdio_mmc_card *card; | |
287546df | 190 | struct mwifiex_adapter *adapter; |
5dbd326c | 191 | struct mwifiex_private *priv; |
5e6e3a92 BZ |
192 | |
193 | pr_debug("info: SDIO func num=%d\n", func->num); | |
194 | ||
287546df AK |
195 | card = sdio_get_drvdata(func); |
196 | if (!card) | |
197 | return; | |
198 | ||
199 | adapter = card->adapter; | |
200 | if (!adapter || !adapter->priv_num) | |
201 | return; | |
202 | ||
8915d738 AK |
203 | cancel_work_sync(&adapter->iface_work); |
204 | ||
287546df AK |
205 | if (user_rmmod) { |
206 | if (adapter->is_suspended) | |
207 | mwifiex_sdio_resume(adapter->dev); | |
208 | ||
848819f4 | 209 | mwifiex_deauthenticate_all(adapter); |
287546df | 210 | |
5dbd326c YAP |
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); | |
5e6e3a92 | 214 | } |
287546df AK |
215 | |
216 | mwifiex_remove_card(card->adapter, &add_remove_card_sem); | |
5e6e3a92 BZ |
217 | } |
218 | ||
219 | /* | |
220 | * SDIO suspend. | |
221 | * | |
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. | |
225 | * | |
226 | * If already not suspended, this function allocates and sends a host | |
227 | * sleep activate request to the firmware and turns off the traffic. | |
228 | */ | |
229 | static int mwifiex_sdio_suspend(struct device *dev) | |
230 | { | |
231 | struct sdio_func *func = dev_to_sdio_func(dev); | |
232 | struct sdio_mmc_card *card; | |
270e58e8 | 233 | struct mwifiex_adapter *adapter; |
5e6e3a92 | 234 | mmc_pm_flag_t pm_flag = 0; |
5e6e3a92 BZ |
235 | int ret = 0; |
236 | ||
237 | if (func) { | |
238 | pm_flag = sdio_get_host_pm_caps(func); | |
239 | pr_debug("cmd: %s: suspend: PM flag = 0x%x\n", | |
5dbd326c | 240 | sdio_func_id(func), pm_flag); |
5e6e3a92 BZ |
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)); | |
244 | return -ENOSYS; | |
245 | } | |
246 | ||
247 | card = sdio_get_drvdata(func); | |
248 | if (!card || !card->adapter) { | |
249 | pr_err("suspend: invalid card or adapter\n"); | |
250 | return 0; | |
251 | } | |
252 | } else { | |
253 | pr_err("suspend: sdio_func is not specified\n"); | |
254 | return 0; | |
255 | } | |
256 | ||
257 | adapter = card->adapter; | |
258 | ||
259 | /* Enable the Host Sleep */ | |
dd321acd BZ |
260 | if (!mwifiex_enable_hs(adapter)) { |
261 | dev_err(adapter->dev, "cmd: failed to suspend\n"); | |
c0dbba66 | 262 | adapter->hs_enabling = false; |
dd321acd | 263 | return -EFAULT; |
5e6e3a92 BZ |
264 | } |
265 | ||
dd321acd BZ |
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); | |
268 | ||
5e6e3a92 BZ |
269 | /* Indicate device suspended */ |
270 | adapter->is_suspended = true; | |
c0dbba66 | 271 | adapter->hs_enabling = false; |
5e6e3a92 | 272 | |
5e6e3a92 BZ |
273 | return ret; |
274 | } | |
275 | ||
98e6b9df W |
276 | /* Device ID for SD8786 */ |
277 | #define SDIO_DEVICE_ID_MARVELL_8786 (0x9116) | |
5e6e3a92 BZ |
278 | /* Device ID for SD8787 */ |
279 | #define SDIO_DEVICE_ID_MARVELL_8787 (0x9119) | |
e3bea1c8 BZ |
280 | /* Device ID for SD8797 */ |
281 | #define SDIO_DEVICE_ID_MARVELL_8797 (0x9129) | |
b60186f8 YAP |
282 | /* Device ID for SD8897 */ |
283 | #define SDIO_DEVICE_ID_MARVELL_8897 (0x912d) | |
030bb75a AP |
284 | /* Device ID for SD8887 */ |
285 | #define SDIO_DEVICE_ID_MARVELL_8887 (0x9135) | |
52bd3d20 YAP |
286 | /* Device ID for SD8801 */ |
287 | #define SDIO_DEVICE_ID_MARVELL_8801 (0x9139) | |
288 | ||
5e6e3a92 BZ |
289 | |
290 | /* WLAN IDs */ | |
291 | static const struct sdio_device_id mwifiex_ids[] = { | |
05889f82 AK |
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}, | |
b60186f8 YAP |
298 | {SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8897), |
299 | .driver_data = (unsigned long) &mwifiex_sdio_sd8897}, | |
030bb75a AP |
300 | {SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8887), |
301 | .driver_data = (unsigned long)&mwifiex_sdio_sd8887}, | |
52bd3d20 YAP |
302 | {SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8801), |
303 | .driver_data = (unsigned long)&mwifiex_sdio_sd8801}, | |
5e6e3a92 BZ |
304 | {}, |
305 | }; | |
306 | ||
307 | MODULE_DEVICE_TABLE(sdio, mwifiex_ids); | |
308 | ||
309 | static const struct dev_pm_ops mwifiex_sdio_pm_ops = { | |
310 | .suspend = mwifiex_sdio_suspend, | |
311 | .resume = mwifiex_sdio_resume, | |
312 | }; | |
313 | ||
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, | |
319 | .drv = { | |
320 | .owner = THIS_MODULE, | |
321 | .pm = &mwifiex_sdio_pm_ops, | |
322 | } | |
323 | }; | |
324 | ||
232fde06 DD |
325 | /* Write data into SDIO card register. Caller claims SDIO device. */ |
326 | static int | |
327 | mwifiex_write_reg_locked(struct sdio_func *func, u32 reg, u8 data) | |
328 | { | |
329 | int ret = -1; | |
330 | sdio_writeb(func, data, reg, &ret); | |
331 | return ret; | |
332 | } | |
333 | ||
5e6e3a92 BZ |
334 | /* |
335 | * This function writes data into SDIO card register. | |
336 | */ | |
337 | static int | |
ab93d4ff | 338 | mwifiex_write_reg(struct mwifiex_adapter *adapter, u32 reg, u8 data) |
5e6e3a92 BZ |
339 | { |
340 | struct sdio_mmc_card *card = adapter->card; | |
232fde06 | 341 | int ret; |
5e6e3a92 BZ |
342 | |
343 | sdio_claim_host(card->func); | |
232fde06 | 344 | ret = mwifiex_write_reg_locked(card->func, reg, data); |
5e6e3a92 BZ |
345 | sdio_release_host(card->func); |
346 | ||
347 | return ret; | |
348 | } | |
349 | ||
350 | /* | |
351 | * This function reads data from SDIO card register. | |
352 | */ | |
353 | static int | |
ab93d4ff | 354 | mwifiex_read_reg(struct mwifiex_adapter *adapter, u32 reg, u8 *data) |
5e6e3a92 BZ |
355 | { |
356 | struct sdio_mmc_card *card = adapter->card; | |
357 | int ret = -1; | |
358 | u8 val; | |
359 | ||
360 | sdio_claim_host(card->func); | |
361 | val = sdio_readb(card->func, reg, &ret); | |
362 | sdio_release_host(card->func); | |
363 | ||
364 | *data = val; | |
365 | ||
366 | return ret; | |
367 | } | |
368 | ||
369 | /* | |
370 | * This function writes multiple data into SDIO card memory. | |
371 | * | |
372 | * This does not work in suspended mode. | |
373 | */ | |
374 | static int | |
375 | mwifiex_write_data_sync(struct mwifiex_adapter *adapter, | |
572e8f3e | 376 | u8 *buffer, u32 pkt_len, u32 port) |
5e6e3a92 BZ |
377 | { |
378 | struct sdio_mmc_card *card = adapter->card; | |
5b2e2ecc | 379 | int ret; |
5e6e3a92 BZ |
380 | u8 blk_mode = |
381 | (port & MWIFIEX_SDIO_BYTE_MODE_MASK) ? BYTE_MODE : BLOCK_MODE; | |
382 | u32 blk_size = (blk_mode == BLOCK_MODE) ? MWIFIEX_SDIO_BLOCK_SIZE : 1; | |
383 | u32 blk_cnt = | |
384 | (blk_mode == | |
385 | BLOCK_MODE) ? (pkt_len / | |
386 | MWIFIEX_SDIO_BLOCK_SIZE) : pkt_len; | |
387 | u32 ioport = (port & MWIFIEX_SDIO_IO_PORT_MASK); | |
388 | ||
389 | if (adapter->is_suspended) { | |
390 | dev_err(adapter->dev, | |
391 | "%s: not allowed while suspended\n", __func__); | |
392 | return -1; | |
393 | } | |
394 | ||
395 | sdio_claim_host(card->func); | |
396 | ||
5b2e2ecc | 397 | ret = sdio_writesb(card->func, ioport, buffer, blk_cnt * blk_size); |
5e6e3a92 BZ |
398 | |
399 | sdio_release_host(card->func); | |
400 | ||
401 | return ret; | |
402 | } | |
403 | ||
404 | /* | |
405 | * This function reads multiple data from SDIO card memory. | |
406 | */ | |
572e8f3e AK |
407 | static int mwifiex_read_data_sync(struct mwifiex_adapter *adapter, u8 *buffer, |
408 | u32 len, u32 port, u8 claim) | |
5e6e3a92 BZ |
409 | { |
410 | struct sdio_mmc_card *card = adapter->card; | |
5b2e2ecc | 411 | int ret; |
5dbd326c YAP |
412 | u8 blk_mode = (port & MWIFIEX_SDIO_BYTE_MODE_MASK) ? BYTE_MODE |
413 | : BLOCK_MODE; | |
5e6e3a92 | 414 | u32 blk_size = (blk_mode == BLOCK_MODE) ? MWIFIEX_SDIO_BLOCK_SIZE : 1; |
5dbd326c YAP |
415 | u32 blk_cnt = (blk_mode == BLOCK_MODE) ? (len / MWIFIEX_SDIO_BLOCK_SIZE) |
416 | : len; | |
5e6e3a92 BZ |
417 | u32 ioport = (port & MWIFIEX_SDIO_IO_PORT_MASK); |
418 | ||
419 | if (claim) | |
420 | sdio_claim_host(card->func); | |
421 | ||
5b2e2ecc | 422 | ret = sdio_readsb(card->func, buffer, ioport, blk_cnt * blk_size); |
5e6e3a92 BZ |
423 | |
424 | if (claim) | |
425 | sdio_release_host(card->func); | |
426 | ||
427 | return ret; | |
428 | } | |
429 | ||
430 | /* | |
431 | * This function wakes up the card. | |
432 | * | |
433 | * A host power up command is written to the card configuration | |
434 | * register to wake up the card. | |
435 | */ | |
436 | static int mwifiex_pm_wakeup_card(struct mwifiex_adapter *adapter) | |
437 | { | |
5e6e3a92 | 438 | dev_dbg(adapter->dev, "event: wakeup device...\n"); |
5e6e3a92 | 439 | |
636c4598 | 440 | return mwifiex_write_reg(adapter, CONFIGURATION_REG, HOST_POWER_UP); |
5e6e3a92 BZ |
441 | } |
442 | ||
443 | /* | |
444 | * This function is called after the card has woken up. | |
445 | * | |
446 | * The card configuration register is reset. | |
447 | */ | |
448 | static int mwifiex_pm_wakeup_card_complete(struct mwifiex_adapter *adapter) | |
449 | { | |
5e6e3a92 | 450 | dev_dbg(adapter->dev, "cmd: wakeup device completed\n"); |
5e6e3a92 | 451 | |
636c4598 | 452 | return mwifiex_write_reg(adapter, CONFIGURATION_REG, 0); |
5e6e3a92 BZ |
453 | } |
454 | ||
455 | /* | |
b60186f8 YAP |
456 | * This function is used to initialize IO ports for the |
457 | * chipsets supporting SDIO new mode eg SD8897. | |
458 | */ | |
459 | static int mwifiex_init_sdio_new_mode(struct mwifiex_adapter *adapter) | |
460 | { | |
461 | u8 reg; | |
554a0113 | 462 | struct sdio_mmc_card *card = adapter->card; |
b60186f8 YAP |
463 | |
464 | adapter->ioport = MEM_PORT; | |
465 | ||
466 | /* enable sdio new mode */ | |
554a0113 | 467 | if (mwifiex_read_reg(adapter, card->reg->card_cfg_2_1_reg, ®)) |
b60186f8 | 468 | return -1; |
554a0113 | 469 | if (mwifiex_write_reg(adapter, card->reg->card_cfg_2_1_reg, |
b60186f8 YAP |
470 | reg | CMD53_NEW_MODE)) |
471 | return -1; | |
472 | ||
473 | /* Configure cmd port and enable reading rx length from the register */ | |
554a0113 | 474 | if (mwifiex_read_reg(adapter, card->reg->cmd_cfg_0, ®)) |
b60186f8 | 475 | return -1; |
554a0113 AP |
476 | if (mwifiex_write_reg(adapter, card->reg->cmd_cfg_0, |
477 | reg | CMD_PORT_RD_LEN_EN)) | |
b60186f8 YAP |
478 | return -1; |
479 | ||
480 | /* Enable Dnld/Upld ready auto reset for cmd port after cmd53 is | |
481 | * completed | |
482 | */ | |
554a0113 | 483 | if (mwifiex_read_reg(adapter, card->reg->cmd_cfg_1, ®)) |
b60186f8 | 484 | return -1; |
554a0113 AP |
485 | if (mwifiex_write_reg(adapter, card->reg->cmd_cfg_1, |
486 | reg | CMD_PORT_AUTO_EN)) | |
b60186f8 YAP |
487 | return -1; |
488 | ||
489 | return 0; | |
490 | } | |
491 | ||
492 | /* This function initializes the IO ports. | |
5e6e3a92 BZ |
493 | * |
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 | |
498 | */ | |
499 | static int mwifiex_init_sdio_ioport(struct mwifiex_adapter *adapter) | |
500 | { | |
ab93d4ff | 501 | u8 reg; |
05889f82 | 502 | struct sdio_mmc_card *card = adapter->card; |
5e6e3a92 BZ |
503 | |
504 | adapter->ioport = 0; | |
505 | ||
b60186f8 YAP |
506 | if (card->supports_sdio_new_mode) { |
507 | if (mwifiex_init_sdio_new_mode(adapter)) | |
508 | return -1; | |
509 | goto cont; | |
510 | } | |
511 | ||
5e6e3a92 | 512 | /* Read the IO port */ |
554a0113 | 513 | if (!mwifiex_read_reg(adapter, card->reg->io_port_0_reg, ®)) |
5e6e3a92 BZ |
514 | adapter->ioport |= (reg & 0xff); |
515 | else | |
516 | return -1; | |
517 | ||
554a0113 | 518 | if (!mwifiex_read_reg(adapter, card->reg->io_port_1_reg, ®)) |
5e6e3a92 BZ |
519 | adapter->ioport |= ((reg & 0xff) << 8); |
520 | else | |
521 | return -1; | |
522 | ||
554a0113 | 523 | if (!mwifiex_read_reg(adapter, card->reg->io_port_2_reg, ®)) |
5e6e3a92 BZ |
524 | adapter->ioport |= ((reg & 0xff) << 16); |
525 | else | |
526 | return -1; | |
b60186f8 | 527 | cont: |
5e6e3a92 BZ |
528 | pr_debug("info: SDIO FUNC1 IO port: %#x\n", adapter->ioport); |
529 | ||
530 | /* Set Host interrupt reset to read to clear */ | |
554a0113 AP |
531 | if (!mwifiex_read_reg(adapter, card->reg->host_int_rsr_reg, ®)) |
532 | mwifiex_write_reg(adapter, card->reg->host_int_rsr_reg, | |
05889f82 | 533 | reg | card->reg->sdio_int_mask); |
5e6e3a92 BZ |
534 | else |
535 | return -1; | |
536 | ||
537 | /* Dnld/Upld ready set to auto reset */ | |
05889f82 AK |
538 | if (!mwifiex_read_reg(adapter, card->reg->card_misc_cfg_reg, ®)) |
539 | mwifiex_write_reg(adapter, card->reg->card_misc_cfg_reg, | |
5e6e3a92 BZ |
540 | reg | AUTO_RE_ENABLE_INT); |
541 | else | |
542 | return -1; | |
543 | ||
544 | return 0; | |
545 | } | |
546 | ||
547 | /* | |
548 | * This function sends data to the card. | |
549 | */ | |
550 | static int mwifiex_write_data_to_card(struct mwifiex_adapter *adapter, | |
551 | u8 *payload, u32 pkt_len, u32 port) | |
552 | { | |
553 | u32 i = 0; | |
270e58e8 | 554 | int ret; |
5e6e3a92 BZ |
555 | |
556 | do { | |
572e8f3e | 557 | ret = mwifiex_write_data_sync(adapter, payload, pkt_len, port); |
5e6e3a92 BZ |
558 | if (ret) { |
559 | i++; | |
560 | dev_err(adapter->dev, "host_to_card, write iomem" | |
561 | " (%d) failed: %d\n", i, ret); | |
5dbd326c | 562 | if (mwifiex_write_reg(adapter, CONFIGURATION_REG, 0x04)) |
5e6e3a92 BZ |
563 | dev_err(adapter->dev, "write CFG reg failed\n"); |
564 | ||
565 | ret = -1; | |
566 | if (i > MAX_WRITE_IOMEM_RETRY) | |
567 | return ret; | |
568 | } | |
569 | } while (ret == -1); | |
570 | ||
571 | return ret; | |
572 | } | |
573 | ||
574 | /* | |
575 | * This function gets the read port. | |
576 | * | |
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) | |
581 | */ | |
582 | static int mwifiex_get_rd_port(struct mwifiex_adapter *adapter, u8 *port) | |
583 | { | |
584 | struct sdio_mmc_card *card = adapter->card; | |
05889f82 | 585 | const struct mwifiex_sdio_card_reg *reg = card->reg; |
5ac253d5 | 586 | u32 rd_bitmap = card->mp_rd_bitmap; |
5e6e3a92 | 587 | |
5ac253d5 | 588 | dev_dbg(adapter->dev, "data: mp_rd_bitmap=0x%08x\n", rd_bitmap); |
5e6e3a92 | 589 | |
b60186f8 YAP |
590 | if (card->supports_sdio_new_mode) { |
591 | if (!(rd_bitmap & reg->data_port_mask)) | |
592 | return -1; | |
593 | } else { | |
594 | if (!(rd_bitmap & (CTRL_PORT_MASK | reg->data_port_mask))) | |
595 | return -1; | |
596 | } | |
5e6e3a92 | 597 | |
b60186f8 YAP |
598 | if ((card->has_control_mask) && |
599 | (card->mp_rd_bitmap & CTRL_PORT_MASK)) { | |
5ac253d5 | 600 | card->mp_rd_bitmap &= (u32) (~CTRL_PORT_MASK); |
5e6e3a92 | 601 | *port = CTRL_PORT; |
5ac253d5 | 602 | dev_dbg(adapter->dev, "data: port=%d mp_rd_bitmap=0x%08x\n", |
5dbd326c | 603 | *port, card->mp_rd_bitmap); |
e6a52030 | 604 | return 0; |
5e6e3a92 | 605 | } |
e6a52030 AK |
606 | |
607 | if (!(card->mp_rd_bitmap & (1 << card->curr_rd_port))) | |
608 | return -1; | |
609 | ||
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; | |
613 | ||
614 | if (++card->curr_rd_port == card->max_ports) | |
615 | card->curr_rd_port = reg->start_rd_port; | |
616 | ||
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); | |
620 | ||
5e6e3a92 BZ |
621 | return 0; |
622 | } | |
623 | ||
624 | /* | |
625 | * This function gets the write port for data. | |
626 | * | |
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) | |
630 | */ | |
0fc0d43b | 631 | static int mwifiex_get_wr_port_data(struct mwifiex_adapter *adapter, u32 *port) |
5e6e3a92 BZ |
632 | { |
633 | struct sdio_mmc_card *card = adapter->card; | |
b60186f8 | 634 | const struct mwifiex_sdio_card_reg *reg = card->reg; |
5ac253d5 | 635 | u32 wr_bitmap = card->mp_wr_bitmap; |
5e6e3a92 | 636 | |
5ac253d5 | 637 | dev_dbg(adapter->dev, "data: mp_wr_bitmap=0x%08x\n", wr_bitmap); |
5e6e3a92 | 638 | |
c48ba040 | 639 | if (!(wr_bitmap & card->mp_data_port_mask)) { |
b60186f8 YAP |
640 | adapter->data_sent = true; |
641 | return -EBUSY; | |
b60186f8 | 642 | } |
5e6e3a92 BZ |
643 | |
644 | if (card->mp_wr_bitmap & (1 << card->curr_wr_port)) { | |
5ac253d5 | 645 | card->mp_wr_bitmap &= (u32) (~(1 << card->curr_wr_port)); |
5e6e3a92 | 646 | *port = card->curr_wr_port; |
c48ba040 | 647 | if (++card->curr_wr_port == card->mp_end_port) |
b60186f8 | 648 | card->curr_wr_port = reg->start_wr_port; |
5e6e3a92 BZ |
649 | } else { |
650 | adapter->data_sent = true; | |
651 | return -EBUSY; | |
652 | } | |
653 | ||
b60186f8 | 654 | if ((card->has_control_mask) && (*port == CTRL_PORT)) { |
5ac253d5 AK |
655 | dev_err(adapter->dev, |
656 | "invalid data port=%d cur port=%d mp_wr_bitmap=0x%08x -> 0x%08x\n", | |
5dbd326c YAP |
657 | *port, card->curr_wr_port, wr_bitmap, |
658 | card->mp_wr_bitmap); | |
5e6e3a92 BZ |
659 | return -1; |
660 | } | |
661 | ||
5ac253d5 | 662 | dev_dbg(adapter->dev, "data: port=%d mp_wr_bitmap=0x%08x -> 0x%08x\n", |
5dbd326c | 663 | *port, wr_bitmap, card->mp_wr_bitmap); |
5e6e3a92 BZ |
664 | |
665 | return 0; | |
666 | } | |
667 | ||
668 | /* | |
669 | * This function polls the card status. | |
670 | */ | |
671 | static int | |
672 | mwifiex_sdio_poll_card_status(struct mwifiex_adapter *adapter, u8 bits) | |
673 | { | |
05889f82 | 674 | struct sdio_mmc_card *card = adapter->card; |
5e6e3a92 | 675 | u32 tries; |
ab93d4ff | 676 | u8 cs; |
5e6e3a92 BZ |
677 | |
678 | for (tries = 0; tries < MAX_POLL_TRIES; tries++) { | |
05889f82 | 679 | if (mwifiex_read_reg(adapter, card->reg->poll_reg, &cs)) |
5e6e3a92 BZ |
680 | break; |
681 | else if ((cs & bits) == bits) | |
682 | return 0; | |
683 | ||
e7891ba2 | 684 | usleep_range(10, 20); |
5e6e3a92 BZ |
685 | } |
686 | ||
5dbd326c YAP |
687 | dev_err(adapter->dev, "poll card status failed, tries = %d\n", tries); |
688 | ||
5e6e3a92 BZ |
689 | return -1; |
690 | } | |
691 | ||
692 | /* | |
693 | * This function reads the firmware status. | |
694 | */ | |
695 | static int | |
696 | mwifiex_sdio_read_fw_status(struct mwifiex_adapter *adapter, u16 *dat) | |
697 | { | |
05889f82 AK |
698 | struct sdio_mmc_card *card = adapter->card; |
699 | const struct mwifiex_sdio_card_reg *reg = card->reg; | |
ab93d4ff | 700 | u8 fws0, fws1; |
5e6e3a92 | 701 | |
05889f82 | 702 | if (mwifiex_read_reg(adapter, reg->status_reg_0, &fws0)) |
5e6e3a92 BZ |
703 | return -1; |
704 | ||
05889f82 | 705 | if (mwifiex_read_reg(adapter, reg->status_reg_1, &fws1)) |
5e6e3a92 BZ |
706 | return -1; |
707 | ||
708 | *dat = (u16) ((fws1 << 8) | fws0); | |
709 | ||
710 | return 0; | |
711 | } | |
712 | ||
713 | /* | |
714 | * This function disables the host interrupt. | |
715 | * | |
716 | * The host interrupt mask is read, the disable bit is reset and | |
717 | * written back to the card host interrupt mask register. | |
718 | */ | |
232fde06 | 719 | static void mwifiex_sdio_disable_host_int(struct mwifiex_adapter *adapter) |
5e6e3a92 | 720 | { |
232fde06 DD |
721 | struct sdio_mmc_card *card = adapter->card; |
722 | struct sdio_func *func = card->func; | |
5e6e3a92 | 723 | |
232fde06 | 724 | sdio_claim_host(func); |
554a0113 | 725 | mwifiex_write_reg_locked(func, card->reg->host_int_mask_reg, 0); |
232fde06 DD |
726 | sdio_release_irq(func); |
727 | sdio_release_host(func); | |
5e6e3a92 BZ |
728 | } |
729 | ||
2cdf359a AK |
730 | /* |
731 | * This function reads the interrupt status from card. | |
732 | */ | |
733 | static void mwifiex_interrupt_status(struct mwifiex_adapter *adapter) | |
734 | { | |
735 | struct sdio_mmc_card *card = adapter->card; | |
736 | u8 sdio_ireg; | |
737 | unsigned long flags; | |
738 | ||
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"); | |
743 | return; | |
744 | } | |
745 | ||
554a0113 | 746 | sdio_ireg = card->mp_regs[card->reg->host_int_status_reg]; |
2cdf359a AK |
747 | if (sdio_ireg) { |
748 | /* | |
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 | |
754 | */ | |
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); | |
759 | } | |
760 | } | |
761 | ||
762 | /* | |
763 | * SDIO interrupt handler. | |
764 | * | |
765 | * This function reads the interrupt status from firmware and handles | |
766 | * the interrupt in current thread (ksdioirqd) right away. | |
767 | */ | |
768 | static void | |
769 | mwifiex_sdio_interrupt(struct sdio_func *func) | |
770 | { | |
771 | struct mwifiex_adapter *adapter; | |
772 | struct sdio_mmc_card *card; | |
773 | ||
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); | |
778 | return; | |
779 | } | |
780 | adapter = card->adapter; | |
781 | ||
782 | if (!adapter->pps_uapsd_mode && adapter->ps_state == PS_STATE_SLEEP) | |
783 | adapter->ps_state = PS_STATE_AWAKE; | |
784 | ||
785 | mwifiex_interrupt_status(adapter); | |
786 | mwifiex_main_process(adapter); | |
787 | } | |
788 | ||
5e6e3a92 BZ |
789 | /* |
790 | * This function enables the host interrupt. | |
791 | * | |
792 | * The host interrupt enable mask is written to the card | |
793 | * host interrupt mask register. | |
794 | */ | |
795 | static int mwifiex_sdio_enable_host_int(struct mwifiex_adapter *adapter) | |
796 | { | |
05889f82 | 797 | struct sdio_mmc_card *card = adapter->card; |
232fde06 DD |
798 | struct sdio_func *func = card->func; |
799 | int ret; | |
800 | ||
801 | sdio_claim_host(func); | |
802 | ||
803 | /* Request the SDIO IRQ */ | |
804 | ret = sdio_claim_irq(func, mwifiex_sdio_interrupt); | |
805 | if (ret) { | |
806 | dev_err(adapter->dev, "claim irq failed: ret=%d\n", ret); | |
807 | goto out; | |
808 | } | |
05889f82 | 809 | |
5e6e3a92 | 810 | /* Simply write the mask to the register */ |
554a0113 | 811 | ret = mwifiex_write_reg_locked(func, card->reg->host_int_mask_reg, |
232fde06 DD |
812 | card->reg->host_int_enable); |
813 | if (ret) { | |
5e6e3a92 | 814 | dev_err(adapter->dev, "enable host interrupt failed\n"); |
232fde06 | 815 | sdio_release_irq(func); |
5e6e3a92 | 816 | } |
232fde06 DD |
817 | |
818 | out: | |
819 | sdio_release_host(func); | |
820 | return ret; | |
5e6e3a92 BZ |
821 | } |
822 | ||
823 | /* | |
824 | * This function sends a data buffer to the card. | |
825 | */ | |
826 | static int mwifiex_sdio_card_to_host(struct mwifiex_adapter *adapter, | |
827 | u32 *type, u8 *buffer, | |
828 | u32 npayload, u32 ioport) | |
829 | { | |
270e58e8 | 830 | int ret; |
5e6e3a92 BZ |
831 | u32 nb; |
832 | ||
833 | if (!buffer) { | |
834 | dev_err(adapter->dev, "%s: buffer is NULL\n", __func__); | |
835 | return -1; | |
836 | } | |
837 | ||
572e8f3e | 838 | ret = mwifiex_read_data_sync(adapter, buffer, npayload, ioport, 1); |
5e6e3a92 BZ |
839 | |
840 | if (ret) { | |
841 | dev_err(adapter->dev, "%s: read iomem failed: %d\n", __func__, | |
5dbd326c | 842 | ret); |
5e6e3a92 BZ |
843 | return -1; |
844 | } | |
845 | ||
846 | nb = le16_to_cpu(*(__le16 *) (buffer)); | |
847 | if (nb > npayload) { | |
5dbd326c YAP |
848 | dev_err(adapter->dev, "%s: invalid packet, nb=%d npayload=%d\n", |
849 | __func__, nb, npayload); | |
5e6e3a92 BZ |
850 | return -1; |
851 | } | |
852 | ||
853 | *type = le16_to_cpu(*(__le16 *) (buffer + 2)); | |
854 | ||
855 | return ret; | |
856 | } | |
857 | ||
858 | /* | |
859 | * This function downloads the firmware to the card. | |
860 | * | |
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 | |
863 | * returning failure. | |
864 | */ | |
865 | static int mwifiex_prog_fw_w_helper(struct mwifiex_adapter *adapter, | |
866 | struct mwifiex_fw_image *fw) | |
867 | { | |
05889f82 AK |
868 | struct sdio_mmc_card *card = adapter->card; |
869 | const struct mwifiex_sdio_card_reg *reg = card->reg; | |
270e58e8 | 870 | int ret; |
5e6e3a92 BZ |
871 | u8 *firmware = fw->fw_buf; |
872 | u32 firmware_len = fw->fw_len; | |
873 | u32 offset = 0; | |
ab93d4ff | 874 | u8 base0, base1; |
5e6e3a92 BZ |
875 | u8 *fwbuf; |
876 | u16 len = 0; | |
270e58e8 | 877 | u32 txlen, tx_blocks = 0, tries; |
5e6e3a92 BZ |
878 | u32 i = 0; |
879 | ||
880 | if (!firmware_len) { | |
5dbd326c YAP |
881 | dev_err(adapter->dev, |
882 | "firmware image not found! Terminating download\n"); | |
5e6e3a92 BZ |
883 | return -1; |
884 | } | |
885 | ||
886 | dev_dbg(adapter->dev, "info: downloading FW image (%d bytes)\n", | |
5dbd326c | 887 | firmware_len); |
5e6e3a92 BZ |
888 | |
889 | /* Assume that the allocated buffer is 8-byte aligned */ | |
890 | fwbuf = kzalloc(MWIFIEX_UPLD_SIZE, GFP_KERNEL); | |
0d2e7a5c | 891 | if (!fwbuf) |
b53575ec | 892 | return -ENOMEM; |
5e6e3a92 BZ |
893 | |
894 | /* Perform firmware data transfer */ | |
895 | do { | |
896 | /* The host polls for the DN_LD_CARD_RDY and CARD_IO_READY | |
897 | bits */ | |
898 | ret = mwifiex_sdio_poll_card_status(adapter, CARD_IO_READY | | |
899 | DN_LD_CARD_RDY); | |
900 | if (ret) { | |
901 | dev_err(adapter->dev, "FW download with helper:" | |
5dbd326c | 902 | " poll status timeout @ %d\n", offset); |
5e6e3a92 BZ |
903 | goto done; |
904 | } | |
905 | ||
906 | /* More data? */ | |
907 | if (offset >= firmware_len) | |
908 | break; | |
909 | ||
910 | for (tries = 0; tries < MAX_POLL_TRIES; tries++) { | |
05889f82 | 911 | ret = mwifiex_read_reg(adapter, reg->base_0_reg, |
5e6e3a92 BZ |
912 | &base0); |
913 | if (ret) { | |
5dbd326c YAP |
914 | dev_err(adapter->dev, |
915 | "dev BASE0 register read failed: " | |
916 | "base0=%#04X(%d). Terminating dnld\n", | |
917 | base0, base0); | |
5e6e3a92 BZ |
918 | goto done; |
919 | } | |
05889f82 | 920 | ret = mwifiex_read_reg(adapter, reg->base_1_reg, |
5e6e3a92 BZ |
921 | &base1); |
922 | if (ret) { | |
5dbd326c YAP |
923 | dev_err(adapter->dev, |
924 | "dev BASE1 register read failed: " | |
925 | "base1=%#04X(%d). Terminating dnld\n", | |
926 | base1, base1); | |
5e6e3a92 BZ |
927 | goto done; |
928 | } | |
929 | len = (u16) (((base1 & 0xff) << 8) | (base0 & 0xff)); | |
930 | ||
931 | if (len) | |
932 | break; | |
933 | ||
e7891ba2 | 934 | usleep_range(10, 20); |
5e6e3a92 BZ |
935 | } |
936 | ||
937 | if (!len) { | |
938 | break; | |
939 | } else if (len > MWIFIEX_UPLD_SIZE) { | |
5dbd326c YAP |
940 | dev_err(adapter->dev, |
941 | "FW dnld failed @ %d, invalid length %d\n", | |
942 | offset, len); | |
5e6e3a92 BZ |
943 | ret = -1; |
944 | goto done; | |
945 | } | |
946 | ||
947 | txlen = len; | |
948 | ||
949 | if (len & BIT(0)) { | |
950 | i++; | |
951 | if (i > MAX_WRITE_IOMEM_RETRY) { | |
5dbd326c YAP |
952 | dev_err(adapter->dev, |
953 | "FW dnld failed @ %d, over max retry\n", | |
954 | offset); | |
5e6e3a92 BZ |
955 | ret = -1; |
956 | goto done; | |
957 | } | |
958 | dev_err(adapter->dev, "CRC indicated by the helper:" | |
5dbd326c | 959 | " len = 0x%04X, txlen = %d\n", len, txlen); |
5e6e3a92 BZ |
960 | len &= ~BIT(0); |
961 | /* Setting this to 0 to resend from same offset */ | |
962 | txlen = 0; | |
963 | } else { | |
964 | i = 0; | |
965 | ||
966 | /* Set blocksize to transfer - checking for last | |
967 | block */ | |
968 | if (firmware_len - offset < txlen) | |
969 | txlen = firmware_len - offset; | |
970 | ||
5dbd326c YAP |
971 | tx_blocks = (txlen + MWIFIEX_SDIO_BLOCK_SIZE - 1) |
972 | / MWIFIEX_SDIO_BLOCK_SIZE; | |
5e6e3a92 BZ |
973 | |
974 | /* Copy payload to buffer */ | |
975 | memmove(fwbuf, &firmware[offset], txlen); | |
976 | } | |
977 | ||
978 | ret = mwifiex_write_data_sync(adapter, fwbuf, tx_blocks * | |
979 | MWIFIEX_SDIO_BLOCK_SIZE, | |
572e8f3e | 980 | adapter->ioport); |
5e6e3a92 | 981 | if (ret) { |
5dbd326c YAP |
982 | dev_err(adapter->dev, |
983 | "FW download, write iomem (%d) failed @ %d\n", | |
984 | i, offset); | |
5e6e3a92 BZ |
985 | if (mwifiex_write_reg(adapter, CONFIGURATION_REG, 0x04)) |
986 | dev_err(adapter->dev, "write CFG reg failed\n"); | |
987 | ||
988 | ret = -1; | |
989 | goto done; | |
990 | } | |
991 | ||
992 | offset += txlen; | |
993 | } while (true); | |
994 | ||
ca5b20e6 AK |
995 | dev_notice(adapter->dev, |
996 | "info: FW download over, size %d bytes\n", offset); | |
5e6e3a92 BZ |
997 | |
998 | ret = 0; | |
999 | done: | |
1000 | kfree(fwbuf); | |
1001 | return ret; | |
1002 | } | |
1003 | ||
1004 | /* | |
1005 | * This function checks the firmware status in card. | |
1006 | * | |
1007 | * The winner interface is also determined by this function. | |
1008 | */ | |
1009 | static int mwifiex_check_fw_status(struct mwifiex_adapter *adapter, | |
d930faee | 1010 | u32 poll_num) |
5e6e3a92 | 1011 | { |
05889f82 | 1012 | struct sdio_mmc_card *card = adapter->card; |
5e6e3a92 BZ |
1013 | int ret = 0; |
1014 | u16 firmware_stat; | |
1015 | u32 tries; | |
ab93d4ff | 1016 | u8 winner_status; |
5e6e3a92 BZ |
1017 | |
1018 | /* Wait for firmware initialization event */ | |
1019 | for (tries = 0; tries < poll_num; tries++) { | |
1020 | ret = mwifiex_sdio_read_fw_status(adapter, &firmware_stat); | |
1021 | if (ret) | |
1022 | continue; | |
d930faee | 1023 | if (firmware_stat == FIRMWARE_READY_SDIO) { |
5e6e3a92 BZ |
1024 | ret = 0; |
1025 | break; | |
1026 | } else { | |
a76b20e5 | 1027 | msleep(100); |
5e6e3a92 BZ |
1028 | ret = -1; |
1029 | } | |
1030 | } | |
1031 | ||
d930faee | 1032 | if (ret) { |
5e6e3a92 | 1033 | if (mwifiex_read_reg |
05889f82 | 1034 | (adapter, card->reg->status_reg_0, &winner_status)) |
5e6e3a92 BZ |
1035 | winner_status = 0; |
1036 | ||
1037 | if (winner_status) | |
d930faee | 1038 | adapter->winner = 0; |
5e6e3a92 | 1039 | else |
d930faee | 1040 | adapter->winner = 1; |
5e6e3a92 BZ |
1041 | } |
1042 | return ret; | |
1043 | } | |
1044 | ||
92263a84 ZL |
1045 | /* |
1046 | * This function decode sdio aggreation pkt. | |
1047 | * | |
1048 | * Based on the the data block size and pkt_len, | |
1049 | * skb data will be decoded to few packets. | |
1050 | */ | |
1051 | static void mwifiex_deaggr_sdio_pkt(struct mwifiex_adapter *adapter, | |
1052 | struct sk_buff *skb) | |
1053 | { | |
1054 | u32 total_pkt_len, pkt_len; | |
1055 | struct sk_buff *skb_deaggr; | |
1056 | u32 pkt_type; | |
1057 | u16 blk_size; | |
1058 | u8 blk_num; | |
1059 | u8 *data; | |
1060 | ||
1061 | data = skb->data; | |
1062 | total_pkt_len = skb->len; | |
1063 | ||
1064 | while (total_pkt_len >= (SDIO_HEADER_OFFSET + INTF_HEADER_LEN)) { | |
1065 | if (total_pkt_len < adapter->sdio_rx_block_size) | |
1066 | break; | |
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); | |
1073 | break; | |
1074 | } | |
1075 | pkt_len = le16_to_cpu(*(__le16 *)(data + SDIO_HEADER_OFFSET)); | |
1076 | pkt_type = le16_to_cpu(*(__le16 *)(data + SDIO_HEADER_OFFSET + | |
1077 | 2)); | |
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); | |
1082 | break; | |
1083 | } | |
1084 | skb_deaggr = mwifiex_alloc_dma_align_buf(pkt_len, | |
1085 | GFP_KERNEL | GFP_DMA); | |
1086 | if (!skb_deaggr) | |
1087 | break; | |
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); | |
1091 | ||
1092 | mwifiex_handle_rx_packet(adapter, skb_deaggr); | |
1093 | data += blk_size; | |
1094 | total_pkt_len -= blk_size; | |
1095 | } | |
1096 | } | |
1097 | ||
5e6e3a92 BZ |
1098 | /* |
1099 | * This function decodes a received packet. | |
1100 | * | |
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. | |
1104 | */ | |
1105 | static int mwifiex_decode_rx_packet(struct mwifiex_adapter *adapter, | |
1106 | struct sk_buff *skb, u32 upld_typ) | |
1107 | { | |
1108 | u8 *cmd_buf; | |
d03b4aa7 AP |
1109 | __le16 *curr_ptr = (__le16 *)skb->data; |
1110 | u16 pkt_len = le16_to_cpu(*curr_ptr); | |
92263a84 | 1111 | struct mwifiex_rxinfo *rx_info; |
5e6e3a92 | 1112 | |
92263a84 ZL |
1113 | if (upld_typ != MWIFIEX_TYPE_AGGR_DATA) { |
1114 | skb_trim(skb, pkt_len); | |
1115 | skb_pull(skb, INTF_HEADER_LEN); | |
1116 | } | |
5e6e3a92 BZ |
1117 | |
1118 | switch (upld_typ) { | |
92263a84 ZL |
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; | |
1127 | } else { | |
1128 | mwifiex_deaggr_sdio_pkt(adapter, skb); | |
1129 | dev_kfree_skb_any(skb); | |
1130 | } | |
1131 | break; | |
1132 | ||
5e6e3a92 BZ |
1133 | case MWIFIEX_TYPE_DATA: |
1134 | dev_dbg(adapter->dev, "info: --- Rx: Data packet ---\n"); | |
6e251174 | 1135 | if (adapter->rx_work_enabled) { |
6e251174 | 1136 | skb_queue_tail(&adapter->rx_data_q, skb); |
6e251174 AP |
1137 | adapter->data_received = true; |
1138 | atomic_inc(&adapter->rx_pending); | |
1139 | } else { | |
1140 | mwifiex_handle_rx_packet(adapter, skb); | |
1141 | } | |
5e6e3a92 BZ |
1142 | break; |
1143 | ||
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; | |
1149 | ||
1150 | if (adapter->ps_state == PS_STATE_SLEEP_CFM) | |
1151 | mwifiex_process_sleep_confirm_resp(adapter, | |
5dbd326c YAP |
1152 | skb->data, |
1153 | skb->len); | |
5e6e3a92 | 1154 | |
5dbd326c YAP |
1155 | memcpy(cmd_buf, skb->data, |
1156 | min_t(u32, MWIFIEX_SIZE_OF_CMD_BUFFER, | |
1157 | skb->len)); | |
5e6e3a92 BZ |
1158 | |
1159 | dev_kfree_skb_any(skb); | |
1160 | } else { | |
1161 | adapter->cmd_resp_received = true; | |
1162 | adapter->curr_cmd->resp_skb = skb; | |
1163 | } | |
1164 | break; | |
1165 | ||
1166 | case MWIFIEX_TYPE_EVENT: | |
1167 | dev_dbg(adapter->dev, "info: --- Rx: Event ---\n"); | |
cfcd926e | 1168 | adapter->event_cause = le32_to_cpu(*(__le32 *) skb->data); |
5e6e3a92 | 1169 | |
5e6e3a92 | 1170 | if ((skb->len > 0) && (skb->len < MAX_EVENT_SIZE)) |
e80c81dc AK |
1171 | memcpy(adapter->event_body, |
1172 | skb->data + MWIFIEX_EVENT_HEADER_LEN, | |
1173 | skb->len); | |
5e6e3a92 BZ |
1174 | |
1175 | /* event cause has been saved to adapter->event_cause */ | |
1176 | adapter->event_received = true; | |
1177 | adapter->event_skb = skb; | |
1178 | ||
1179 | break; | |
1180 | ||
1181 | default: | |
1182 | dev_err(adapter->dev, "unknown upload type %#x\n", upld_typ); | |
1183 | dev_kfree_skb_any(skb); | |
1184 | break; | |
1185 | } | |
1186 | ||
1187 | return 0; | |
1188 | } | |
1189 | ||
1190 | /* | |
1191 | * This function transfers received packets from card to driver, performing | |
1192 | * aggregation if required. | |
1193 | * | |
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. | |
1198 | */ | |
1199 | static int mwifiex_sdio_card_to_host_mp_aggr(struct mwifiex_adapter *adapter, | |
1200 | struct sk_buff *skb, u8 port) | |
1201 | { | |
1202 | struct sdio_mmc_card *card = adapter->card; | |
1203 | s32 f_do_rx_aggr = 0; | |
1204 | s32 f_do_rx_cur = 0; | |
1205 | s32 f_aggr_cur = 0; | |
2c11ab90 | 1206 | s32 f_post_aggr_cur = 0; |
5e6e3a92 | 1207 | struct sk_buff *skb_deaggr; |
270e58e8 | 1208 | u32 pind; |
0fc0d43b | 1209 | u32 pkt_len, pkt_type, mport; |
5e6e3a92 BZ |
1210 | u8 *curr_ptr; |
1211 | u32 rx_len = skb->len; | |
1212 | ||
b60186f8 | 1213 | if ((card->has_control_mask) && (port == CTRL_PORT)) { |
5e6e3a92 BZ |
1214 | /* Read the command Resp without aggr */ |
1215 | dev_dbg(adapter->dev, "info: %s: no aggregation for cmd " | |
5dbd326c | 1216 | "response\n", __func__); |
5e6e3a92 BZ |
1217 | |
1218 | f_do_rx_cur = 1; | |
1219 | goto rx_curr_single; | |
1220 | } | |
1221 | ||
1222 | if (!card->mpa_rx.enabled) { | |
1223 | dev_dbg(adapter->dev, "info: %s: rx aggregation disabled\n", | |
5dbd326c | 1224 | __func__); |
5e6e3a92 BZ |
1225 | |
1226 | f_do_rx_cur = 1; | |
1227 | goto rx_curr_single; | |
1228 | } | |
1229 | ||
b60186f8 YAP |
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))))) { | |
5e6e3a92 BZ |
1234 | /* Some more data RX pending */ |
1235 | dev_dbg(adapter->dev, "info: %s: not last packet\n", __func__); | |
1236 | ||
1237 | if (MP_RX_AGGR_IN_PROGRESS(card)) { | |
1238 | if (MP_RX_AGGR_BUF_HAS_ROOM(card, skb->len)) { | |
1239 | f_aggr_cur = 1; | |
1240 | } else { | |
1241 | /* No room in Aggr buf, do rx aggr now */ | |
1242 | f_do_rx_aggr = 1; | |
2c11ab90 | 1243 | f_post_aggr_cur = 1; |
5e6e3a92 BZ |
1244 | } |
1245 | } else { | |
1246 | /* Rx aggr not in progress */ | |
1247 | f_aggr_cur = 1; | |
1248 | } | |
1249 | ||
1250 | } else { | |
1251 | /* No more data RX pending */ | |
1252 | dev_dbg(adapter->dev, "info: %s: last packet\n", __func__); | |
1253 | ||
1254 | if (MP_RX_AGGR_IN_PROGRESS(card)) { | |
1255 | f_do_rx_aggr = 1; | |
1256 | if (MP_RX_AGGR_BUF_HAS_ROOM(card, skb->len)) | |
1257 | f_aggr_cur = 1; | |
1258 | else | |
1259 | /* No room in Aggr buf, do rx aggr now */ | |
1260 | f_do_rx_cur = 1; | |
1261 | } else { | |
1262 | f_do_rx_cur = 1; | |
1263 | } | |
1264 | } | |
1265 | ||
1266 | if (f_aggr_cur) { | |
1267 | dev_dbg(adapter->dev, "info: current packet aggregation\n"); | |
1268 | /* Curr pkt can be aggregated */ | |
c23b7c8f | 1269 | mp_rx_aggr_setup(card, skb, port); |
5e6e3a92 BZ |
1270 | |
1271 | if (MP_RX_AGGR_PKT_LIMIT_REACHED(card) || | |
c23b7c8f | 1272 | mp_rx_aggr_port_limit_reached(card)) { |
5e6e3a92 | 1273 | dev_dbg(adapter->dev, "info: %s: aggregated packet " |
5dbd326c | 1274 | "limit reached\n", __func__); |
5e6e3a92 BZ |
1275 | /* No more pkts allowed in Aggr buf, rx it */ |
1276 | f_do_rx_aggr = 1; | |
1277 | } | |
1278 | } | |
1279 | ||
1280 | if (f_do_rx_aggr) { | |
1281 | /* do aggr RX now */ | |
1282 | dev_dbg(adapter->dev, "info: do_rx_aggr: num of packets: %d\n", | |
5dbd326c | 1283 | card->mpa_rx.pkt_cnt); |
5e6e3a92 | 1284 | |
b60186f8 YAP |
1285 | if (card->supports_sdio_new_mode) { |
1286 | int i; | |
1287 | u32 port_count; | |
1288 | ||
1289 | for (i = 0, port_count = 0; i < card->max_ports; i++) | |
1290 | if (card->mpa_rx.ports & BIT(i)) | |
1291 | port_count++; | |
1292 | ||
1293 | /* Reading data from "start_port + 0" to "start_port + | |
1294 | * port_count -1", so decrease the count by 1 | |
1295 | */ | |
1296 | port_count--; | |
1297 | mport = (adapter->ioport | SDIO_MPA_ADDR_BASE | | |
1298 | (port_count << 8)) + card->mpa_rx.start_port; | |
1299 | } else { | |
1300 | mport = (adapter->ioport | SDIO_MPA_ADDR_BASE | | |
1301 | (card->mpa_rx.ports << 4)) + | |
1302 | card->mpa_rx.start_port; | |
1303 | } | |
0fc0d43b | 1304 | |
5e6e3a92 | 1305 | if (mwifiex_read_data_sync(adapter, card->mpa_rx.buf, |
0fc0d43b | 1306 | card->mpa_rx.buf_len, mport, 1)) |
17a60b48 | 1307 | goto error; |
5e6e3a92 BZ |
1308 | |
1309 | curr_ptr = card->mpa_rx.buf; | |
1310 | ||
1311 | for (pind = 0; pind < card->mpa_rx.pkt_cnt; pind++) { | |
1312 | ||
1313 | /* get curr PKT len & type */ | |
cfcd926e TW |
1314 | pkt_len = le16_to_cpu(*(__le16 *) &curr_ptr[0]); |
1315 | pkt_type = le16_to_cpu(*(__le16 *) &curr_ptr[2]); | |
5e6e3a92 BZ |
1316 | |
1317 | /* copy pkt to deaggr buf */ | |
1318 | skb_deaggr = card->mpa_rx.skb_arr[pind]; | |
1319 | ||
92263a84 ZL |
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])) { | |
5e6e3a92 BZ |
1324 | |
1325 | memcpy(skb_deaggr->data, curr_ptr, pkt_len); | |
1326 | ||
1327 | skb_trim(skb_deaggr, pkt_len); | |
1328 | ||
1329 | /* Process de-aggr packet */ | |
1330 | mwifiex_decode_rx_packet(adapter, skb_deaggr, | |
1331 | pkt_type); | |
1332 | } else { | |
92263a84 ZL |
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, | |
5e6e3a92 BZ |
1337 | pkt_type, pkt_len, |
1338 | card->mpa_rx.len_arr[pind]); | |
1339 | dev_kfree_skb_any(skb_deaggr); | |
1340 | } | |
1341 | curr_ptr += card->mpa_rx.len_arr[pind]; | |
1342 | } | |
1343 | MP_RX_AGGR_BUF_RESET(card); | |
1344 | } | |
1345 | ||
1346 | rx_curr_single: | |
1347 | if (f_do_rx_cur) { | |
1348 | dev_dbg(adapter->dev, "info: RX: port: %d, rx_len: %d\n", | |
1349 | port, rx_len); | |
1350 | ||
1351 | if (mwifiex_sdio_card_to_host(adapter, &pkt_type, | |
1352 | skb->data, skb->len, | |
1353 | adapter->ioport + port)) | |
17a60b48 | 1354 | goto error; |
92263a84 ZL |
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", | |
1359 | pkt_type); | |
1360 | goto error; | |
1361 | } | |
5e6e3a92 BZ |
1362 | |
1363 | mwifiex_decode_rx_packet(adapter, skb, pkt_type); | |
1364 | } | |
2c11ab90 CL |
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); | |
1369 | } | |
5e6e3a92 BZ |
1370 | |
1371 | return 0; | |
17a60b48 AP |
1372 | error: |
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); | |
1379 | } | |
1380 | MP_RX_AGGR_BUF_RESET(card); | |
1381 | } | |
1382 | ||
1383 | if (f_do_rx_cur) | |
1384 | /* Single transfer pending. Free curr buff also */ | |
1385 | dev_kfree_skb_any(skb); | |
1386 | ||
1387 | return -1; | |
5e6e3a92 BZ |
1388 | } |
1389 | ||
1390 | /* | |
1391 | * This function checks the current interrupt status. | |
1392 | * | |
1393 | * The following interrupts are checked and handled by this function - | |
1394 | * - Data sent | |
1395 | * - Command sent | |
1396 | * - Packets received | |
1397 | * | |
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. | |
1401 | * | |
1402 | * In case of Rx packets received, the packets are uploaded from card to | |
1403 | * host and processed accordingly. | |
1404 | */ | |
1405 | static int mwifiex_process_int_status(struct mwifiex_adapter *adapter) | |
1406 | { | |
1407 | struct sdio_mmc_card *card = adapter->card; | |
05889f82 | 1408 | const struct mwifiex_sdio_card_reg *reg = card->reg; |
5e6e3a92 BZ |
1409 | int ret = 0; |
1410 | u8 sdio_ireg; | |
270e58e8 | 1411 | struct sk_buff *skb; |
5e6e3a92 BZ |
1412 | u8 port = CTRL_PORT; |
1413 | u32 len_reg_l, len_reg_u; | |
1414 | u32 rx_blocks; | |
1415 | u16 rx_len; | |
1416 | unsigned long flags; | |
b60186f8 YAP |
1417 | u32 bitmap; |
1418 | u8 cr; | |
5e6e3a92 BZ |
1419 | |
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); | |
1424 | ||
1425 | if (!sdio_ireg) | |
1426 | return ret; | |
1427 | ||
b60186f8 YAP |
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; | |
1431 | ||
1432 | /* Following interrupt is only for SDIO new mode */ | |
1433 | if (sdio_ireg & UP_LD_CMD_PORT_HOST_INT_STATUS) { | |
1434 | u32 pkt_type; | |
1435 | ||
1436 | /* read the len of control packet */ | |
554a0113 AP |
1437 | rx_len = card->mp_regs[reg->cmd_rd_len_1] << 8; |
1438 | rx_len |= (u16)card->mp_regs[reg->cmd_rd_len_0]; | |
b60186f8 YAP |
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) | |
1443 | return -1; | |
1444 | rx_len = (u16) (rx_blocks * MWIFIEX_SDIO_BLOCK_SIZE); | |
1445 | ||
62159944 | 1446 | skb = mwifiex_alloc_dma_align_buf(rx_len, GFP_KERNEL | GFP_DMA); |
b60186f8 YAP |
1447 | if (!skb) |
1448 | return -1; | |
1449 | ||
1450 | skb_put(skb, rx_len); | |
1451 | ||
1452 | if (mwifiex_sdio_card_to_host(adapter, &pkt_type, skb->data, | |
1453 | skb->len, adapter->ioport | | |
1454 | CMD_PORT_SLCT)) { | |
1455 | dev_err(adapter->dev, | |
1456 | "%s: failed to card_to_host", __func__); | |
1457 | dev_kfree_skb_any(skb); | |
1458 | goto term_cmd; | |
1459 | } | |
1460 | ||
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", | |
1465 | __func__); | |
1466 | ||
1467 | mwifiex_decode_rx_packet(adapter, skb, pkt_type); | |
1468 | } | |
1469 | ||
5e6e3a92 | 1470 | if (sdio_ireg & DN_LD_HOST_INT_STATUS) { |
b60186f8 YAP |
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) { | |
1474 | bitmap |= | |
1475 | ((u32) card->mp_regs[reg->wr_bitmap_1l]) << 16; | |
1476 | bitmap |= | |
1477 | ((u32) card->mp_regs[reg->wr_bitmap_1u]) << 24; | |
1478 | } | |
1479 | card->mp_wr_bitmap = bitmap; | |
1480 | ||
1481 | dev_dbg(adapter->dev, "int: DNLD: wr_bitmap=0x%x\n", | |
5dbd326c | 1482 | card->mp_wr_bitmap); |
5e6e3a92 BZ |
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; | |
1488 | } | |
1489 | } | |
1490 | ||
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 | |
1493 | interrupt. */ | |
b60186f8 | 1494 | if (card->has_control_mask && adapter->cmd_sent) { |
5e6e3a92 BZ |
1495 | /* Check if firmware has attach buffer at command port and |
1496 | update just that in wr_bit_map. */ | |
1497 | card->mp_wr_bitmap |= | |
05889f82 | 1498 | (u32) card->mp_regs[reg->wr_bitmap_l] & CTRL_PORT_MASK; |
5e6e3a92 BZ |
1499 | if (card->mp_wr_bitmap & CTRL_PORT_MASK) |
1500 | adapter->cmd_sent = false; | |
1501 | } | |
1502 | ||
1503 | dev_dbg(adapter->dev, "info: cmd_sent=%d data_sent=%d\n", | |
5dbd326c | 1504 | adapter->cmd_sent, adapter->data_sent); |
5e6e3a92 | 1505 | if (sdio_ireg & UP_LD_HOST_INT_STATUS) { |
b60186f8 YAP |
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) { | |
1509 | bitmap |= | |
1510 | ((u32) card->mp_regs[reg->rd_bitmap_1l]) << 16; | |
1511 | bitmap |= | |
1512 | ((u32) card->mp_regs[reg->rd_bitmap_1u]) << 24; | |
1513 | } | |
1514 | card->mp_rd_bitmap = bitmap; | |
1515 | dev_dbg(adapter->dev, "int: UPLD: rd_bitmap=0x%x\n", | |
5dbd326c | 1516 | card->mp_rd_bitmap); |
5e6e3a92 BZ |
1517 | |
1518 | while (true) { | |
1519 | ret = mwifiex_get_rd_port(adapter, &port); | |
1520 | if (ret) { | |
1521 | dev_dbg(adapter->dev, | |
1522 | "info: no more rd_port available\n"); | |
1523 | break; | |
1524 | } | |
05889f82 AK |
1525 | len_reg_l = reg->rd_len_p0_l + (port << 1); |
1526 | len_reg_u = reg->rd_len_p0_u + (port << 1); | |
5e6e3a92 BZ |
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", | |
5dbd326c | 1530 | port, rx_len); |
5e6e3a92 BZ |
1531 | rx_blocks = |
1532 | (rx_len + MWIFIEX_SDIO_BLOCK_SIZE - | |
1533 | 1) / MWIFIEX_SDIO_BLOCK_SIZE; | |
5dbd326c YAP |
1534 | if (rx_len <= INTF_HEADER_LEN || |
1535 | (rx_blocks * MWIFIEX_SDIO_BLOCK_SIZE) > | |
92263a84 | 1536 | card->mpa_rx.buf_size) { |
5e6e3a92 | 1537 | dev_err(adapter->dev, "invalid rx_len=%d\n", |
5dbd326c | 1538 | rx_len); |
5e6e3a92 BZ |
1539 | return -1; |
1540 | } | |
1541 | rx_len = (u16) (rx_blocks * MWIFIEX_SDIO_BLOCK_SIZE); | |
1542 | ||
62159944 AP |
1543 | skb = mwifiex_alloc_dma_align_buf(rx_len, |
1544 | GFP_KERNEL | | |
1545 | GFP_DMA); | |
5e6e3a92 BZ |
1546 | |
1547 | if (!skb) { | |
1548 | dev_err(adapter->dev, "%s: failed to alloc skb", | |
5dbd326c | 1549 | __func__); |
5e6e3a92 BZ |
1550 | return -1; |
1551 | } | |
1552 | ||
1553 | skb_put(skb, rx_len); | |
1554 | ||
1555 | dev_dbg(adapter->dev, "info: rx_len = %d skb->len = %d\n", | |
5dbd326c | 1556 | rx_len, skb->len); |
5e6e3a92 BZ |
1557 | |
1558 | if (mwifiex_sdio_card_to_host_mp_aggr(adapter, skb, | |
1559 | port)) { | |
5e6e3a92 | 1560 | dev_err(adapter->dev, "card_to_host_mpa failed:" |
5dbd326c | 1561 | " int status=%#x\n", sdio_ireg); |
b60186f8 | 1562 | goto term_cmd; |
5e6e3a92 BZ |
1563 | } |
1564 | } | |
1565 | } | |
1566 | ||
1567 | return 0; | |
b60186f8 YAP |
1568 | |
1569 | term_cmd: | |
1570 | /* terminate cmd */ | |
1571 | if (mwifiex_read_reg(adapter, CONFIGURATION_REG, &cr)) | |
1572 | dev_err(adapter->dev, "read CFG reg failed\n"); | |
1573 | else | |
1574 | dev_dbg(adapter->dev, "info: CFG reg val = %d\n", cr); | |
1575 | ||
1576 | if (mwifiex_write_reg(adapter, CONFIGURATION_REG, (cr | 0x04))) | |
1577 | dev_err(adapter->dev, "write CFG reg failed\n"); | |
1578 | else | |
1579 | dev_dbg(adapter->dev, "info: write success\n"); | |
1580 | ||
1581 | if (mwifiex_read_reg(adapter, CONFIGURATION_REG, &cr)) | |
1582 | dev_err(adapter->dev, "read CFG reg failed\n"); | |
1583 | else | |
1584 | dev_dbg(adapter->dev, "info: CFG reg val =%x\n", cr); | |
1585 | ||
1586 | return -1; | |
5e6e3a92 BZ |
1587 | } |
1588 | ||
1589 | /* | |
1590 | * This function aggregates transmission buffers in driver and downloads | |
1591 | * the aggregated packet to card. | |
1592 | * | |
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. | |
1598 | * | |
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 | |
1601 | * and return. | |
1602 | */ | |
1603 | static int mwifiex_host_to_card_mp_aggr(struct mwifiex_adapter *adapter, | |
0fc0d43b | 1604 | u8 *payload, u32 pkt_len, u32 port, |
5e6e3a92 BZ |
1605 | u32 next_pkt_len) |
1606 | { | |
1607 | struct sdio_mmc_card *card = adapter->card; | |
1608 | int ret = 0; | |
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; | |
0fc0d43b | 1613 | u32 mport; |
5e6e3a92 | 1614 | |
b60186f8 YAP |
1615 | if (!card->mpa_tx.enabled || |
1616 | (card->has_control_mask && (port == CTRL_PORT)) || | |
1617 | (card->supports_sdio_new_mode && (port == CMD_PORT_SLCT))) { | |
5e6e3a92 | 1618 | dev_dbg(adapter->dev, "info: %s: tx aggregation disabled\n", |
5dbd326c | 1619 | __func__); |
5e6e3a92 BZ |
1620 | |
1621 | f_send_cur_buf = 1; | |
1622 | goto tx_curr_single; | |
1623 | } | |
1624 | ||
1625 | if (next_pkt_len) { | |
1626 | /* More pkt in TX queue */ | |
1627 | dev_dbg(adapter->dev, "info: %s: more packets in queue.\n", | |
5dbd326c | 1628 | __func__); |
5e6e3a92 BZ |
1629 | |
1630 | if (MP_TX_AGGR_IN_PROGRESS(card)) { | |
c7346c32 | 1631 | if (MP_TX_AGGR_BUF_HAS_ROOM(card, pkt_len)) { |
5e6e3a92 BZ |
1632 | f_precopy_cur_buf = 1; |
1633 | ||
1634 | if (!(card->mp_wr_bitmap & | |
5dbd326c YAP |
1635 | (1 << card->curr_wr_port)) || |
1636 | !MP_TX_AGGR_BUF_HAS_ROOM( | |
1637 | card, pkt_len + next_pkt_len)) | |
5e6e3a92 BZ |
1638 | f_send_aggr_buf = 1; |
1639 | } else { | |
1640 | /* No room in Aggr buf, send it */ | |
1641 | f_send_aggr_buf = 1; | |
1642 | ||
c7346c32 | 1643 | if (!(card->mp_wr_bitmap & |
5e6e3a92 BZ |
1644 | (1 << card->curr_wr_port))) |
1645 | f_send_cur_buf = 1; | |
1646 | else | |
1647 | f_postcopy_cur_buf = 1; | |
1648 | } | |
1649 | } else { | |
5dbd326c YAP |
1650 | if (MP_TX_AGGR_BUF_HAS_ROOM(card, pkt_len) && |
1651 | (card->mp_wr_bitmap & (1 << card->curr_wr_port))) | |
5e6e3a92 BZ |
1652 | f_precopy_cur_buf = 1; |
1653 | else | |
1654 | f_send_cur_buf = 1; | |
1655 | } | |
1656 | } else { | |
1657 | /* Last pkt in TX queue */ | |
1658 | dev_dbg(adapter->dev, "info: %s: Last packet in Tx Queue.\n", | |
5dbd326c | 1659 | __func__); |
5e6e3a92 BZ |
1660 | |
1661 | if (MP_TX_AGGR_IN_PROGRESS(card)) { | |
1662 | /* some packs in Aggr buf already */ | |
1663 | f_send_aggr_buf = 1; | |
1664 | ||
1665 | if (MP_TX_AGGR_BUF_HAS_ROOM(card, pkt_len)) | |
1666 | f_precopy_cur_buf = 1; | |
1667 | else | |
1668 | /* No room in Aggr buf, send it */ | |
1669 | f_send_cur_buf = 1; | |
1670 | } else { | |
1671 | f_send_cur_buf = 1; | |
1672 | } | |
1673 | } | |
1674 | ||
1675 | if (f_precopy_cur_buf) { | |
1676 | dev_dbg(adapter->dev, "data: %s: precopy current buffer\n", | |
5dbd326c | 1677 | __func__); |
5e6e3a92 BZ |
1678 | MP_TX_AGGR_BUF_PUT(card, payload, pkt_len, port); |
1679 | ||
1680 | if (MP_TX_AGGR_PKT_LIMIT_REACHED(card) || | |
c23b7c8f | 1681 | mp_tx_aggr_port_limit_reached(card)) |
5e6e3a92 BZ |
1682 | /* No more pkts allowed in Aggr buf, send it */ |
1683 | f_send_aggr_buf = 1; | |
1684 | } | |
1685 | ||
1686 | if (f_send_aggr_buf) { | |
1687 | dev_dbg(adapter->dev, "data: %s: send aggr buffer: %d %d\n", | |
5dbd326c | 1688 | __func__, |
5e6e3a92 | 1689 | card->mpa_tx.start_port, card->mpa_tx.ports); |
b60186f8 YAP |
1690 | if (card->supports_sdio_new_mode) { |
1691 | u32 port_count; | |
1692 | int i; | |
1693 | ||
1694 | for (i = 0, port_count = 0; i < card->max_ports; i++) | |
1695 | if (card->mpa_tx.ports & BIT(i)) | |
1696 | port_count++; | |
1697 | ||
1698 | /* Writing data from "start_port + 0" to "start_port + | |
1699 | * port_count -1", so decrease the count by 1 | |
1700 | */ | |
1701 | port_count--; | |
1702 | mport = (adapter->ioport | SDIO_MPA_ADDR_BASE | | |
1703 | (port_count << 8)) + card->mpa_tx.start_port; | |
1704 | } else { | |
1705 | mport = (adapter->ioport | SDIO_MPA_ADDR_BASE | | |
1706 | (card->mpa_tx.ports << 4)) + | |
1707 | card->mpa_tx.start_port; | |
1708 | } | |
1709 | ||
5e6e3a92 | 1710 | ret = mwifiex_write_data_to_card(adapter, card->mpa_tx.buf, |
0fc0d43b | 1711 | card->mpa_tx.buf_len, mport); |
5e6e3a92 BZ |
1712 | |
1713 | MP_TX_AGGR_BUF_RESET(card); | |
1714 | } | |
1715 | ||
1716 | tx_curr_single: | |
1717 | if (f_send_cur_buf) { | |
1718 | dev_dbg(adapter->dev, "data: %s: send current buffer %d\n", | |
5dbd326c | 1719 | __func__, port); |
5e6e3a92 BZ |
1720 | ret = mwifiex_write_data_to_card(adapter, payload, pkt_len, |
1721 | adapter->ioport + port); | |
1722 | } | |
1723 | ||
1724 | if (f_postcopy_cur_buf) { | |
1725 | dev_dbg(adapter->dev, "data: %s: postcopy current buffer\n", | |
5dbd326c | 1726 | __func__); |
5e6e3a92 BZ |
1727 | MP_TX_AGGR_BUF_PUT(card, payload, pkt_len, port); |
1728 | } | |
1729 | ||
1730 | return ret; | |
1731 | } | |
1732 | ||
1733 | /* | |
1734 | * This function downloads data from driver to card. | |
1735 | * | |
1736 | * Both commands and data packets are transferred to the card by this | |
1737 | * function. | |
1738 | * | |
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. | |
1742 | */ | |
1743 | static int mwifiex_sdio_host_to_card(struct mwifiex_adapter *adapter, | |
d930faee | 1744 | u8 type, struct sk_buff *skb, |
5e6e3a92 BZ |
1745 | struct mwifiex_tx_param *tx_param) |
1746 | { | |
1747 | struct sdio_mmc_card *card = adapter->card; | |
270e58e8 | 1748 | int ret; |
5e6e3a92 BZ |
1749 | u32 buf_block_len; |
1750 | u32 blk_size; | |
0fc0d43b | 1751 | u32 port = CTRL_PORT; |
d930faee AK |
1752 | u8 *payload = (u8 *)skb->data; |
1753 | u32 pkt_len = skb->len; | |
5e6e3a92 BZ |
1754 | |
1755 | /* Allocate buffer and copy payload */ | |
1756 | blk_size = MWIFIEX_SDIO_BLOCK_SIZE; | |
1757 | buf_block_len = (pkt_len + blk_size - 1) / blk_size; | |
83e612f6 TM |
1758 | *(__le16 *)&payload[0] = cpu_to_le16((u16)pkt_len); |
1759 | *(__le16 *)&payload[2] = cpu_to_le16(type); | |
5e6e3a92 BZ |
1760 | |
1761 | /* | |
1762 | * This is SDIO specific header | |
1763 | * u16 length, | |
1764 | * u16 type (MWIFIEX_TYPE_DATA = 0, MWIFIEX_TYPE_CMD = 1, | |
1765 | * MWIFIEX_TYPE_EVENT = 3) | |
1766 | */ | |
1767 | if (type == MWIFIEX_TYPE_DATA) { | |
1768 | ret = mwifiex_get_wr_port_data(adapter, &port); | |
1769 | if (ret) { | |
1770 | dev_err(adapter->dev, "%s: no wr_port available\n", | |
5dbd326c | 1771 | __func__); |
5e6e3a92 BZ |
1772 | return ret; |
1773 | } | |
1774 | } else { | |
1775 | adapter->cmd_sent = true; | |
1776 | /* Type must be MWIFIEX_TYPE_CMD */ | |
1777 | ||
1778 | if (pkt_len <= INTF_HEADER_LEN || | |
1779 | pkt_len > MWIFIEX_UPLD_SIZE) | |
1780 | dev_err(adapter->dev, "%s: payload=%p, nb=%d\n", | |
5dbd326c | 1781 | __func__, payload, pkt_len); |
b60186f8 YAP |
1782 | |
1783 | if (card->supports_sdio_new_mode) | |
1784 | port = CMD_PORT_SLCT; | |
5e6e3a92 BZ |
1785 | } |
1786 | ||
1787 | /* Transfer data to card */ | |
1788 | pkt_len = buf_block_len * blk_size; | |
1789 | ||
1790 | if (tx_param) | |
1791 | ret = mwifiex_host_to_card_mp_aggr(adapter, payload, pkt_len, | |
5dbd326c YAP |
1792 | port, tx_param->next_pkt_len |
1793 | ); | |
5e6e3a92 BZ |
1794 | else |
1795 | ret = mwifiex_host_to_card_mp_aggr(adapter, payload, pkt_len, | |
5dbd326c | 1796 | port, 0); |
5e6e3a92 BZ |
1797 | |
1798 | if (ret) { | |
1799 | if (type == MWIFIEX_TYPE_CMD) | |
1800 | adapter->cmd_sent = false; | |
bb71d01a | 1801 | if (type == MWIFIEX_TYPE_DATA) { |
5e6e3a92 | 1802 | adapter->data_sent = false; |
bb71d01a AP |
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); | |
1806 | } | |
5e6e3a92 BZ |
1807 | } else { |
1808 | if (type == MWIFIEX_TYPE_DATA) { | |
1809 | if (!(card->mp_wr_bitmap & (1 << card->curr_wr_port))) | |
1810 | adapter->data_sent = true; | |
1811 | else | |
1812 | adapter->data_sent = false; | |
1813 | } | |
1814 | } | |
1815 | ||
1816 | return ret; | |
1817 | } | |
1818 | ||
1819 | /* | |
1820 | * This function allocates the MPA Tx and Rx buffers. | |
1821 | */ | |
1822 | static int mwifiex_alloc_sdio_mpa_buffers(struct mwifiex_adapter *adapter, | |
1823 | u32 mpa_tx_buf_size, u32 mpa_rx_buf_size) | |
1824 | { | |
1825 | struct sdio_mmc_card *card = adapter->card; | |
92263a84 | 1826 | u32 rx_buf_size; |
5e6e3a92 BZ |
1827 | int ret = 0; |
1828 | ||
1829 | card->mpa_tx.buf = kzalloc(mpa_tx_buf_size, GFP_KERNEL); | |
1830 | if (!card->mpa_tx.buf) { | |
5e6e3a92 BZ |
1831 | ret = -1; |
1832 | goto error; | |
1833 | } | |
1834 | ||
1835 | card->mpa_tx.buf_size = mpa_tx_buf_size; | |
1836 | ||
92263a84 ZL |
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); | |
5e6e3a92 | 1840 | if (!card->mpa_rx.buf) { |
5e6e3a92 BZ |
1841 | ret = -1; |
1842 | goto error; | |
1843 | } | |
1844 | ||
92263a84 | 1845 | card->mpa_rx.buf_size = rx_buf_size; |
5e6e3a92 BZ |
1846 | |
1847 | error: | |
1848 | if (ret) { | |
1849 | kfree(card->mpa_tx.buf); | |
1850 | kfree(card->mpa_rx.buf); | |
1851 | } | |
1852 | ||
1853 | return ret; | |
1854 | } | |
1855 | ||
1856 | /* | |
1857 | * This function unregisters the SDIO device. | |
1858 | * | |
1859 | * The SDIO IRQ is released, the function is disabled and driver | |
1860 | * data is set to null. | |
1861 | */ | |
1862 | static void | |
1863 | mwifiex_unregister_dev(struct mwifiex_adapter *adapter) | |
1864 | { | |
1865 | struct sdio_mmc_card *card = adapter->card; | |
1866 | ||
1867 | if (adapter->card) { | |
5e6e3a92 | 1868 | sdio_claim_host(card->func); |
5e6e3a92 BZ |
1869 | sdio_disable_func(card->func); |
1870 | sdio_release_host(card->func); | |
5e6e3a92 BZ |
1871 | } |
1872 | } | |
1873 | ||
1874 | /* | |
1875 | * This function registers the SDIO device. | |
1876 | * | |
1877 | * SDIO IRQ is claimed, block size is set and driver data is initialized. | |
1878 | */ | |
1879 | static int mwifiex_register_dev(struct mwifiex_adapter *adapter) | |
1880 | { | |
232fde06 | 1881 | int ret; |
5e6e3a92 BZ |
1882 | struct sdio_mmc_card *card = adapter->card; |
1883 | struct sdio_func *func = card->func; | |
1884 | ||
1885 | /* save adapter pointer in card */ | |
1886 | card->adapter = adapter; | |
828cf222 | 1887 | adapter->tx_buf_size = card->tx_buf_size; |
5e6e3a92 BZ |
1888 | |
1889 | sdio_claim_host(func); | |
1890 | ||
5e6e3a92 BZ |
1891 | /* Set block size */ |
1892 | ret = sdio_set_block_size(card->func, MWIFIEX_SDIO_BLOCK_SIZE); | |
232fde06 | 1893 | sdio_release_host(func); |
5e6e3a92 BZ |
1894 | if (ret) { |
1895 | pr_err("cannot set SDIO block size\n"); | |
232fde06 | 1896 | return ret; |
5e6e3a92 BZ |
1897 | } |
1898 | ||
5e6e3a92 BZ |
1899 | |
1900 | adapter->dev = &func->dev; | |
e3bea1c8 | 1901 | |
05889f82 | 1902 | strcpy(adapter->fw_name, card->firmware); |
54881c6b AK |
1903 | adapter->mem_type_mapping_tbl = mem_type_mapping_tbl; |
1904 | adapter->num_mem_types = ARRAY_SIZE(mem_type_mapping_tbl); | |
5e6e3a92 BZ |
1905 | |
1906 | return 0; | |
5e6e3a92 BZ |
1907 | } |
1908 | ||
1909 | /* | |
1910 | * This function initializes the SDIO driver. | |
1911 | * | |
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 | |
1916 | * - Get SDIO port | |
5e6e3a92 BZ |
1917 | * - Initialize SDIO variables in card |
1918 | * - Allocate MP registers | |
1919 | * - Allocate MPA Tx and Rx buffers | |
1920 | */ | |
1921 | static int mwifiex_init_sdio(struct mwifiex_adapter *adapter) | |
1922 | { | |
1923 | struct sdio_mmc_card *card = adapter->card; | |
05889f82 | 1924 | const struct mwifiex_sdio_card_reg *reg = card->reg; |
5e6e3a92 | 1925 | int ret; |
ab93d4ff | 1926 | u8 sdio_ireg; |
5e6e3a92 | 1927 | |
3c59e328 AK |
1928 | sdio_set_drvdata(card->func, card); |
1929 | ||
5e6e3a92 | 1930 | /* |
554a0113 | 1931 | * Read the host_int_status_reg for ACK the first interrupt got |
5e6e3a92 BZ |
1932 | * from the bootloader. If we don't do this we get a interrupt |
1933 | * as soon as we register the irq. | |
1934 | */ | |
554a0113 | 1935 | mwifiex_read_reg(adapter, card->reg->host_int_status_reg, &sdio_ireg); |
5e6e3a92 | 1936 | |
5e6e3a92 BZ |
1937 | /* Get SDIO ioport */ |
1938 | mwifiex_init_sdio_ioport(adapter); | |
1939 | ||
5e6e3a92 BZ |
1940 | /* Initialize SDIO variables in card */ |
1941 | card->mp_rd_bitmap = 0; | |
1942 | card->mp_wr_bitmap = 0; | |
05889f82 AK |
1943 | card->curr_rd_port = reg->start_rd_port; |
1944 | card->curr_wr_port = reg->start_wr_port; | |
5e6e3a92 | 1945 | |
05889f82 | 1946 | card->mp_data_port_mask = reg->data_port_mask; |
5e6e3a92 BZ |
1947 | |
1948 | card->mpa_tx.buf_len = 0; | |
1949 | card->mpa_tx.pkt_cnt = 0; | |
1950 | card->mpa_tx.start_port = 0; | |
1951 | ||
7d7ab022 | 1952 | card->mpa_tx.enabled = 1; |
05889f82 | 1953 | card->mpa_tx.pkt_aggr_limit = card->mp_agg_pkt_limit; |
5e6e3a92 BZ |
1954 | |
1955 | card->mpa_rx.buf_len = 0; | |
1956 | card->mpa_rx.pkt_cnt = 0; | |
1957 | card->mpa_rx.start_port = 0; | |
1958 | ||
7d7ab022 | 1959 | card->mpa_rx.enabled = 1; |
05889f82 | 1960 | card->mpa_rx.pkt_aggr_limit = card->mp_agg_pkt_limit; |
5e6e3a92 BZ |
1961 | |
1962 | /* Allocate buffers for SDIO MP-A */ | |
05889f82 | 1963 | card->mp_regs = kzalloc(reg->max_mp_regs, GFP_KERNEL); |
0d2e7a5c | 1964 | if (!card->mp_regs) |
b53575ec | 1965 | return -ENOMEM; |
5e6e3a92 | 1966 | |
c23b7c8f AK |
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); | |
5e6e3a92 | 1972 | ret = mwifiex_alloc_sdio_mpa_buffers(adapter, |
e1aa93a4 AK |
1973 | card->mp_tx_agg_buf_size, |
1974 | card->mp_rx_agg_buf_size); | |
5e6e3a92 BZ |
1975 | if (ret) { |
1976 | dev_err(adapter->dev, "failed to alloc sdio mp-a buffers\n"); | |
1977 | kfree(card->mp_regs); | |
1978 | return -1; | |
1979 | } | |
1980 | ||
b4e8aebb | 1981 | adapter->auto_tdls = card->can_auto_tdls; |
1fe192d8 | 1982 | adapter->ext_scan = card->can_ext_scan; |
5e6e3a92 BZ |
1983 | return ret; |
1984 | } | |
1985 | ||
1986 | /* | |
1987 | * This function resets the MPA Tx and Rx buffers. | |
1988 | */ | |
1989 | static void mwifiex_cleanup_mpa_buf(struct mwifiex_adapter *adapter) | |
1990 | { | |
1991 | struct sdio_mmc_card *card = adapter->card; | |
1992 | ||
1993 | MP_TX_AGGR_BUF_RESET(card); | |
1994 | MP_RX_AGGR_BUF_RESET(card); | |
1995 | } | |
1996 | ||
1997 | /* | |
1998 | * This function cleans up the allocated card buffers. | |
1999 | * | |
2000 | * The following are freed by this function - | |
2001 | * - MP registers | |
2002 | * - MPA Tx buffer | |
2003 | * - MPA Rx buffer | |
2004 | */ | |
2005 | static void mwifiex_cleanup_sdio(struct mwifiex_adapter *adapter) | |
2006 | { | |
2007 | struct sdio_mmc_card *card = adapter->card; | |
2008 | ||
2009 | kfree(card->mp_regs); | |
c23b7c8f AK |
2010 | kfree(card->mpa_rx.skb_arr); |
2011 | kfree(card->mpa_rx.len_arr); | |
5e6e3a92 BZ |
2012 | kfree(card->mpa_tx.buf); |
2013 | kfree(card->mpa_rx.buf); | |
3c59e328 AK |
2014 | sdio_set_drvdata(card->func, NULL); |
2015 | kfree(card); | |
5e6e3a92 BZ |
2016 | } |
2017 | ||
2018 | /* | |
2019 | * This function updates the MP end port in card. | |
2020 | */ | |
2021 | static void | |
2022 | mwifiex_update_mp_end_port(struct mwifiex_adapter *adapter, u16 port) | |
2023 | { | |
2024 | struct sdio_mmc_card *card = adapter->card; | |
05889f82 | 2025 | const struct mwifiex_sdio_card_reg *reg = card->reg; |
5e6e3a92 BZ |
2026 | int i; |
2027 | ||
2028 | card->mp_end_port = port; | |
2029 | ||
05889f82 | 2030 | card->mp_data_port_mask = reg->data_port_mask; |
5e6e3a92 | 2031 | |
b60186f8 YAP |
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)); | |
2036 | } | |
5e6e3a92 | 2037 | |
05889f82 | 2038 | card->curr_wr_port = reg->start_wr_port; |
5e6e3a92 BZ |
2039 | |
2040 | dev_dbg(adapter->dev, "cmd: mp_end_port %d, data port mask 0x%x\n", | |
5dbd326c | 2041 | port, card->mp_data_port_mask); |
5e6e3a92 BZ |
2042 | } |
2043 | ||
088df424 | 2044 | static void mwifiex_sdio_card_reset_work(struct mwifiex_adapter *adapter) |
d31ab357 | 2045 | { |
088df424 AK |
2046 | struct sdio_mmc_card *card = adapter->card; |
2047 | struct mmc_host *target = card->func->card->host; | |
7f5855c9 | 2048 | |
d31ab357 AK |
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. | |
2053 | * | |
2054 | * We run it in a totally independent workqueue. | |
2055 | */ | |
2056 | ||
2057 | pr_err("Resetting card...\n"); | |
7f5855c9 | 2058 | mmc_remove_host(target); |
b4f1b177 MY |
2059 | /* 200ms delay is based on experiment with sdhci controller */ |
2060 | mdelay(200); | |
81df6caf | 2061 | target->rescan_entered = 0; /* rescan non-removable cards */ |
7f5855c9 | 2062 | mmc_add_host(target); |
d31ab357 | 2063 | } |
8915d738 | 2064 | |
54881c6b AK |
2065 | /* This function read/write firmware */ |
2066 | static enum | |
2067 | rdwr_status mwifiex_sdio_rdwr_firmware(struct mwifiex_adapter *adapter, | |
2068 | u8 doneflag) | |
2069 | { | |
2070 | struct sdio_mmc_card *card = adapter->card; | |
2071 | int ret, tries; | |
2072 | u8 ctrl_data = 0; | |
2073 | ||
2074 | sdio_writeb(card->func, FW_DUMP_HOST_READY, card->reg->fw_dump_ctrl, | |
2075 | &ret); | |
2076 | if (ret) { | |
2077 | dev_err(adapter->dev, "SDIO Write ERR\n"); | |
2078 | return RDWR_STATUS_FAILURE; | |
2079 | } | |
2080 | for (tries = 0; tries < MAX_POLL_TRIES; tries++) { | |
2081 | ctrl_data = sdio_readb(card->func, card->reg->fw_dump_ctrl, | |
2082 | &ret); | |
2083 | if (ret) { | |
2084 | dev_err(adapter->dev, "SDIO read err\n"); | |
2085 | return RDWR_STATUS_FAILURE; | |
2086 | } | |
2087 | if (ctrl_data == FW_DUMP_DONE) | |
2088 | break; | |
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); | |
2096 | if (ret) { | |
2097 | dev_err(adapter->dev, "SDIO write err\n"); | |
2098 | return RDWR_STATUS_FAILURE; | |
2099 | } | |
2100 | } | |
2101 | usleep_range(100, 200); | |
2102 | } | |
2103 | if (ctrl_data == FW_DUMP_HOST_READY) { | |
2104 | dev_err(adapter->dev, "Fail to pull ctrl_data\n"); | |
2105 | return RDWR_STATUS_FAILURE; | |
2106 | } | |
2107 | ||
2108 | return RDWR_STATUS_SUCCESS; | |
2109 | } | |
2110 | ||
2111 | /* This function dump firmware memory to file */ | |
2112 | static void mwifiex_sdio_fw_dump_work(struct work_struct *work) | |
2113 | { | |
2114 | struct mwifiex_adapter *adapter = | |
2115 | container_of(work, struct mwifiex_adapter, iface_work); | |
2116 | struct sdio_mmc_card *card = adapter->card; | |
2117 | int ret = 0; | |
2118 | unsigned int reg, reg_start, reg_end; | |
2119 | u8 *dbg_ptr, *end_ptr, dump_num, idx, i, read_reg, doneflag = 0; | |
54881c6b AK |
2120 | enum rdwr_status stat; |
2121 | u32 memory_size; | |
2122 | static char *env[] = { "DRIVER=mwifiex_sdio", "EVENT=fw_dump", NULL }; | |
2123 | ||
11cd07a9 XH |
2124 | mwifiex_dump_drv_info(adapter); |
2125 | ||
b4e8aebb | 2126 | if (!card->can_dump_fw) |
54881c6b AK |
2127 | return; |
2128 | ||
2129 | for (idx = 0; idx < ARRAY_SIZE(mem_type_mapping_tbl); idx++) { | |
2130 | struct memory_type_mapping *entry = &mem_type_mapping_tbl[idx]; | |
2131 | ||
2132 | if (entry->mem_ptr) { | |
2133 | vfree(entry->mem_ptr); | |
2134 | entry->mem_ptr = NULL; | |
2135 | } | |
2136 | entry->mem_size = 0; | |
2137 | } | |
2138 | ||
2139 | mwifiex_pm_wakeup_card(adapter); | |
2140 | sdio_claim_host(card->func); | |
2141 | ||
1d9e954e | 2142 | dev_info(adapter->dev, "== mwifiex firmware dump start ==\n"); |
54881c6b AK |
2143 | |
2144 | stat = mwifiex_sdio_rdwr_firmware(adapter, doneflag); | |
2145 | if (stat == RDWR_STATUS_FAILURE) | |
2146 | goto done; | |
2147 | ||
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); | |
2151 | if (ret) { | |
2152 | dev_err(adapter->dev, "SDIO read memory length err\n"); | |
2153 | goto done; | |
2154 | } | |
2155 | ||
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]; | |
2159 | ||
2160 | stat = mwifiex_sdio_rdwr_firmware(adapter, doneflag); | |
2161 | if (stat == RDWR_STATUS_FAILURE) | |
2162 | goto done; | |
2163 | ||
2164 | memory_size = 0; | |
2165 | reg = card->reg->fw_dump_start; | |
2166 | for (i = 0; i < 4; i++) { | |
2167 | read_reg = sdio_readb(card->func, reg, &ret); | |
2168 | if (ret) { | |
2169 | dev_err(adapter->dev, "SDIO read err\n"); | |
2170 | goto done; | |
2171 | } | |
2172 | memory_size |= (read_reg << i*8); | |
2173 | reg++; | |
2174 | } | |
2175 | ||
2176 | if (memory_size == 0) { | |
2177 | dev_info(adapter->dev, "Firmware dump Finished!\n"); | |
2178 | break; | |
2179 | } | |
2180 | ||
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", | |
2187 | entry->mem_name); | |
2188 | goto done; | |
2189 | } | |
2190 | dbg_ptr = entry->mem_ptr; | |
2191 | end_ptr = dbg_ptr + memory_size; | |
2192 | ||
2193 | doneflag = entry->done_flag; | |
1d9e954e BZ |
2194 | dev_info(adapter->dev, "Start %s output, please wait...\n", |
2195 | entry->mem_name); | |
54881c6b AK |
2196 | |
2197 | do { | |
2198 | stat = mwifiex_sdio_rdwr_firmware(adapter, doneflag); | |
2199 | if (stat == RDWR_STATUS_FAILURE) | |
2200 | goto done; | |
2201 | ||
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); | |
2206 | if (ret) { | |
2207 | dev_err(adapter->dev, | |
2208 | "SDIO read err\n"); | |
2209 | goto done; | |
2210 | } | |
2211 | if (dbg_ptr < end_ptr) | |
2212 | dbg_ptr++; | |
2213 | else | |
2214 | dev_err(adapter->dev, | |
2215 | "Allocated buf not enough\n"); | |
2216 | } | |
2217 | ||
2218 | if (stat != RDWR_STATUS_DONE) | |
2219 | continue; | |
2220 | ||
2221 | dev_info(adapter->dev, "%s done: size=0x%tx\n", | |
2222 | entry->mem_name, dbg_ptr - entry->mem_ptr); | |
2223 | break; | |
2224 | } while (1); | |
2225 | } | |
1d9e954e | 2226 | dev_info(adapter->dev, "== mwifiex firmware dump end ==\n"); |
54881c6b AK |
2227 | |
2228 | kobject_uevent_env(&adapter->wiphy->dev.kobj, KOBJ_CHANGE, env); | |
2229 | ||
2230 | done: | |
2231 | sdio_release_host(card->func); | |
2232 | adapter->curr_mem_idx = 0; | |
2233 | } | |
2234 | ||
8915d738 AK |
2235 | static void mwifiex_sdio_work(struct work_struct *work) |
2236 | { | |
2237 | struct mwifiex_adapter *adapter = | |
2238 | container_of(work, struct mwifiex_adapter, iface_work); | |
2239 | ||
2240 | if (test_and_clear_bit(MWIFIEX_IFACE_WORK_CARD_RESET, | |
2241 | &adapter->iface_work_flags)) | |
088df424 | 2242 | mwifiex_sdio_card_reset_work(adapter); |
54881c6b AK |
2243 | if (test_and_clear_bit(MWIFIEX_IFACE_WORK_FW_DUMP, |
2244 | &adapter->iface_work_flags)) | |
2245 | mwifiex_sdio_fw_dump_work(work); | |
8915d738 | 2246 | } |
d31ab357 AK |
2247 | |
2248 | /* This function resets the card */ | |
2249 | static void mwifiex_sdio_card_reset(struct mwifiex_adapter *adapter) | |
2250 | { | |
8915d738 AK |
2251 | if (test_bit(MWIFIEX_IFACE_WORK_CARD_RESET, &adapter->iface_work_flags)) |
2252 | return; | |
2253 | ||
2254 | set_bit(MWIFIEX_IFACE_WORK_CARD_RESET, &adapter->iface_work_flags); | |
2255 | ||
8915d738 | 2256 | schedule_work(&adapter->iface_work); |
d31ab357 AK |
2257 | } |
2258 | ||
54881c6b AK |
2259 | /* This function dumps FW information */ |
2260 | static void mwifiex_sdio_fw_dump(struct mwifiex_adapter *adapter) | |
2261 | { | |
2262 | if (test_bit(MWIFIEX_IFACE_WORK_FW_DUMP, &adapter->iface_work_flags)) | |
2263 | return; | |
2264 | ||
2265 | set_bit(MWIFIEX_IFACE_WORK_FW_DUMP, &adapter->iface_work_flags); | |
2266 | schedule_work(&adapter->iface_work); | |
2267 | } | |
2268 | ||
809c6ea8 XH |
2269 | /* Function to dump SDIO function registers and SDIO scratch registers in case |
2270 | * of FW crash | |
2271 | */ | |
2272 | static int | |
2273 | mwifiex_sdio_reg_dump(struct mwifiex_adapter *adapter, char *drv_buf) | |
2274 | { | |
2275 | char *p = drv_buf; | |
2276 | struct sdio_mmc_card *cardp = adapter->card; | |
2277 | int ret = 0; | |
2278 | u8 count, func, data, index = 0, size = 0; | |
2279 | u8 reg, reg_start, reg_end; | |
2280 | char buf[256], *ptr; | |
2281 | ||
2282 | if (!p) | |
2283 | return 0; | |
2284 | ||
2285 | dev_info(adapter->dev, "SDIO register DUMP START\n"); | |
2286 | ||
2287 | mwifiex_pm_wakeup_card(adapter); | |
2288 | ||
2289 | sdio_claim_host(cardp->func); | |
2290 | ||
2291 | for (count = 0; count < 5; count++) { | |
2292 | memset(buf, 0, sizeof(buf)); | |
2293 | ptr = buf; | |
2294 | ||
2295 | switch (count) { | |
2296 | case 0: | |
2297 | /* Read the registers of SDIO function0 */ | |
2298 | func = count; | |
2299 | reg_start = 0; | |
2300 | reg_end = 9; | |
2301 | break; | |
2302 | case 1: | |
2303 | /* Read the registers of SDIO function1 */ | |
2304 | func = count; | |
2305 | reg_start = cardp->reg->func1_dump_reg_start; | |
2306 | reg_end = cardp->reg->func1_dump_reg_end; | |
2307 | break; | |
2308 | case 2: | |
2309 | index = 0; | |
2310 | func = 1; | |
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]; | |
2314 | break; | |
2315 | default: | |
2316 | /* Read the scratch registers of SDIO function1 */ | |
2317 | if (count == 4) | |
2318 | mdelay(100); | |
2319 | func = 1; | |
2320 | reg_start = cardp->reg->func1_scratch_reg; | |
2321 | reg_end = reg_start + MWIFIEX_SDIO_SCRATCH_SIZE; | |
2322 | } | |
2323 | ||
2324 | if (count != 2) | |
2325 | ptr += sprintf(ptr, "SDIO Func%d (%#x-%#x): ", | |
2326 | func, reg_start, reg_end); | |
2327 | else | |
2328 | ptr += sprintf(ptr, "SDIO Func%d: ", func); | |
2329 | ||
2330 | for (reg = reg_start; reg <= reg_end;) { | |
2331 | if (func == 0) | |
2332 | data = sdio_f0_readb(cardp->func, reg, &ret); | |
2333 | else | |
2334 | data = sdio_readb(cardp->func, reg, &ret); | |
2335 | ||
2336 | if (count == 2) | |
2337 | ptr += sprintf(ptr, "(%#x) ", reg); | |
2338 | if (!ret) { | |
2339 | ptr += sprintf(ptr, "%02x ", data); | |
2340 | } else { | |
2341 | ptr += sprintf(ptr, "ERR"); | |
2342 | break; | |
2343 | } | |
2344 | ||
2345 | if (count == 2 && reg < reg_end) | |
2346 | reg = cardp->reg->func1_spec_reg_table[index++]; | |
2347 | else | |
2348 | reg++; | |
2349 | } | |
2350 | ||
2351 | dev_info(adapter->dev, "%s\n", buf); | |
2352 | p += sprintf(p, "%s\n", buf); | |
2353 | } | |
2354 | ||
2355 | sdio_release_host(cardp->func); | |
2356 | ||
2357 | dev_info(adapter->dev, "SDIO register DUMP END\n"); | |
2358 | ||
2359 | return p - drv_buf; | |
2360 | } | |
2361 | ||
5e6e3a92 BZ |
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, | |
232fde06 | 2370 | .disable_int = mwifiex_sdio_disable_host_int, |
5e6e3a92 BZ |
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, | |
2375 | ||
2376 | /* SDIO specific */ | |
2377 | .update_mp_end_port = mwifiex_update_mp_end_port, | |
2378 | .cleanup_mpa_buf = mwifiex_cleanup_mpa_buf, | |
d930faee AK |
2379 | .cmdrsp_complete = mwifiex_sdio_cmdrsp_complete, |
2380 | .event_complete = mwifiex_sdio_event_complete, | |
d31ab357 | 2381 | .card_reset = mwifiex_sdio_card_reset, |
8915d738 | 2382 | .iface_work = mwifiex_sdio_work, |
54881c6b | 2383 | .fw_dump = mwifiex_sdio_fw_dump, |
809c6ea8 | 2384 | .reg_dump = mwifiex_sdio_reg_dump, |
92263a84 | 2385 | .deaggr_pkt = mwifiex_deaggr_sdio_pkt, |
5e6e3a92 BZ |
2386 | }; |
2387 | ||
2388 | /* | |
2389 | * This function initializes the SDIO driver. | |
2390 | * | |
2391 | * This initiates the semaphore and registers the device with | |
2392 | * SDIO bus. | |
2393 | */ | |
2394 | static int | |
2395 | mwifiex_sdio_init_module(void) | |
2396 | { | |
5e6e3a92 BZ |
2397 | sema_init(&add_remove_card_sem, 1); |
2398 | ||
287546df AK |
2399 | /* Clear the flag in case user removes the card. */ |
2400 | user_rmmod = 0; | |
2401 | ||
636c4598 | 2402 | return sdio_register_driver(&mwifiex_sdio); |
5e6e3a92 BZ |
2403 | } |
2404 | ||
2405 | /* | |
2406 | * This function cleans up the SDIO driver. | |
2407 | * | |
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. | |
2413 | */ | |
2414 | static void | |
2415 | mwifiex_sdio_cleanup_module(void) | |
2416 | { | |
287546df AK |
2417 | if (!down_interruptible(&add_remove_card_sem)) |
2418 | up(&add_remove_card_sem); | |
5e6e3a92 | 2419 | |
287546df AK |
2420 | /* Set the flag as user is removing this module. */ |
2421 | user_rmmod = 1; | |
5e6e3a92 | 2422 | |
5e6e3a92 BZ |
2423 | sdio_unregister_driver(&mwifiex_sdio); |
2424 | } | |
2425 | ||
2426 | module_init(mwifiex_sdio_init_module); | |
2427 | module_exit(mwifiex_sdio_cleanup_module); | |
2428 | ||
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"); | |
98e6b9df | 2433 | MODULE_FIRMWARE(SD8786_DEFAULT_FW_NAME); |
e3bea1c8 BZ |
2434 | MODULE_FIRMWARE(SD8787_DEFAULT_FW_NAME); |
2435 | MODULE_FIRMWARE(SD8797_DEFAULT_FW_NAME); | |
b60186f8 | 2436 | MODULE_FIRMWARE(SD8897_DEFAULT_FW_NAME); |
030bb75a | 2437 | MODULE_FIRMWARE(SD8887_DEFAULT_FW_NAME); |