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 | 49 | static struct mwifiex_if_ops sdio_ops; |
2f5872b6 | 50 | static unsigned long iface_work_flags; |
5e6e3a92 BZ |
51 | |
52 | static struct semaphore add_remove_card_sem; | |
53 | ||
54881c6b AK |
54 | static struct memory_type_mapping mem_type_mapping_tbl[] = { |
55 | {"ITCM", NULL, 0, 0xF0}, | |
56 | {"DTCM", NULL, 0, 0xF1}, | |
57 | {"SQRAM", NULL, 0, 0xF2}, | |
58 | {"APU", NULL, 0, 0xF3}, | |
59 | {"CIU", NULL, 0, 0xF4}, | |
60 | {"ICU", NULL, 0, 0xF5}, | |
61 | {"MAC", NULL, 0, 0xF6}, | |
62 | {"EXT7", NULL, 0, 0xF7}, | |
63 | {"EXT8", NULL, 0, 0xF8}, | |
64 | {"EXT9", NULL, 0, 0xF9}, | |
65 | {"EXT10", NULL, 0, 0xFA}, | |
66 | {"EXT11", NULL, 0, 0xFB}, | |
67 | {"EXT12", NULL, 0, 0xFC}, | |
68 | {"EXT13", NULL, 0, 0xFD}, | |
69 | {"EXTLAST", NULL, 0, 0xFE}, | |
70 | }; | |
71 | ||
5e6e3a92 BZ |
72 | /* |
73 | * SDIO probe. | |
74 | * | |
75 | * This function probes an mwifiex device and registers it. It allocates | |
76 | * the card structure, enables SDIO function number and initiates the | |
77 | * device registration and initialization procedure by adding a logical | |
78 | * interface. | |
79 | */ | |
80 | static int | |
81 | mwifiex_sdio_probe(struct sdio_func *func, const struct sdio_device_id *id) | |
82 | { | |
270e58e8 | 83 | int ret; |
5e6e3a92 BZ |
84 | struct sdio_mmc_card *card = NULL; |
85 | ||
86 | pr_debug("info: vendor=0x%4.04X device=0x%4.04X class=%d function=%d\n", | |
5dbd326c | 87 | func->vendor, func->device, func->class, func->num); |
5e6e3a92 BZ |
88 | |
89 | card = kzalloc(sizeof(struct sdio_mmc_card), GFP_KERNEL); | |
e404decb | 90 | if (!card) |
5e6e3a92 | 91 | return -ENOMEM; |
5e6e3a92 BZ |
92 | |
93 | card->func = func; | |
94 | ||
95 | func->card->quirks |= MMC_QUIRK_BLKSZ_FOR_BYTE_MODE; | |
96 | ||
05889f82 AK |
97 | if (id->driver_data) { |
98 | struct mwifiex_sdio_device *data = (void *)id->driver_data; | |
99 | ||
100 | card->firmware = data->firmware; | |
101 | card->reg = data->reg; | |
102 | card->max_ports = data->max_ports; | |
103 | card->mp_agg_pkt_limit = data->mp_agg_pkt_limit; | |
b60186f8 YAP |
104 | card->supports_sdio_new_mode = data->supports_sdio_new_mode; |
105 | card->has_control_mask = data->has_control_mask; | |
828cf222 | 106 | card->tx_buf_size = data->tx_buf_size; |
e1aa93a4 AK |
107 | card->mp_tx_agg_buf_size = data->mp_tx_agg_buf_size; |
108 | card->mp_rx_agg_buf_size = data->mp_rx_agg_buf_size; | |
b4e8aebb AP |
109 | card->can_dump_fw = data->can_dump_fw; |
110 | card->can_auto_tdls = data->can_auto_tdls; | |
1fe192d8 | 111 | card->can_ext_scan = data->can_ext_scan; |
05889f82 AK |
112 | } |
113 | ||
5e6e3a92 BZ |
114 | sdio_claim_host(func); |
115 | ret = sdio_enable_func(func); | |
116 | sdio_release_host(func); | |
117 | ||
118 | if (ret) { | |
119 | pr_err("%s: failed to enable function\n", __func__); | |
b53575ec | 120 | kfree(card); |
5e6e3a92 BZ |
121 | return -EIO; |
122 | } | |
123 | ||
d930faee AK |
124 | if (mwifiex_add_card(card, &add_remove_card_sem, &sdio_ops, |
125 | MWIFIEX_SDIO)) { | |
5e6e3a92 BZ |
126 | pr_err("%s: add card failed\n", __func__); |
127 | kfree(card); | |
128 | sdio_claim_host(func); | |
129 | ret = sdio_disable_func(func); | |
130 | sdio_release_host(func); | |
131 | ret = -1; | |
132 | } | |
133 | ||
134 | return ret; | |
135 | } | |
136 | ||
2cdf359a AK |
137 | /* |
138 | * SDIO resume. | |
139 | * | |
140 | * Kernel needs to suspend all functions separately. Therefore all | |
141 | * registered functions must have drivers with suspend and resume | |
142 | * methods. Failing that the kernel simply removes the whole card. | |
143 | * | |
144 | * If already not resumed, this function turns on the traffic and | |
145 | * sends a host sleep cancel request to the firmware. | |
146 | */ | |
147 | static int mwifiex_sdio_resume(struct device *dev) | |
148 | { | |
149 | struct sdio_func *func = dev_to_sdio_func(dev); | |
150 | struct sdio_mmc_card *card; | |
151 | struct mwifiex_adapter *adapter; | |
152 | mmc_pm_flag_t pm_flag = 0; | |
153 | ||
154 | if (func) { | |
155 | pm_flag = sdio_get_host_pm_caps(func); | |
156 | card = sdio_get_drvdata(func); | |
157 | if (!card || !card->adapter) { | |
158 | pr_err("resume: invalid card or adapter\n"); | |
159 | return 0; | |
160 | } | |
161 | } else { | |
162 | pr_err("resume: sdio_func is not specified\n"); | |
163 | return 0; | |
164 | } | |
165 | ||
166 | adapter = card->adapter; | |
167 | ||
168 | if (!adapter->is_suspended) { | |
acebe8c1 ZL |
169 | mwifiex_dbg(adapter, WARN, |
170 | "device already resumed\n"); | |
2cdf359a AK |
171 | return 0; |
172 | } | |
173 | ||
174 | adapter->is_suspended = false; | |
175 | ||
176 | /* Disable Host Sleep */ | |
177 | mwifiex_cancel_hs(mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA), | |
178 | MWIFIEX_ASYNC_CMD); | |
179 | ||
180 | return 0; | |
181 | } | |
182 | ||
5e6e3a92 BZ |
183 | /* |
184 | * SDIO remove. | |
185 | * | |
186 | * This function removes the interface and frees up the card structure. | |
187 | */ | |
188 | static void | |
189 | mwifiex_sdio_remove(struct sdio_func *func) | |
190 | { | |
191 | struct sdio_mmc_card *card; | |
287546df | 192 | struct mwifiex_adapter *adapter; |
5dbd326c | 193 | struct mwifiex_private *priv; |
5e6e3a92 | 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 | ||
acebe8c1 ZL |
203 | mwifiex_dbg(adapter, INFO, "info: SDIO func num=%d\n", func->num); |
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 | 260 | if (!mwifiex_enable_hs(adapter)) { |
acebe8c1 ZL |
261 | mwifiex_dbg(adapter, ERROR, |
262 | "cmd: failed to suspend\n"); | |
c0dbba66 | 263 | adapter->hs_enabling = false; |
dd321acd | 264 | return -EFAULT; |
5e6e3a92 BZ |
265 | } |
266 | ||
acebe8c1 ZL |
267 | mwifiex_dbg(adapter, INFO, |
268 | "cmd: suspend with MMC_PM_KEEP_POWER\n"); | |
dd321acd BZ |
269 | ret = sdio_set_host_pm_flags(func, MMC_PM_KEEP_POWER); |
270 | ||
5e6e3a92 BZ |
271 | /* Indicate device suspended */ |
272 | adapter->is_suspended = true; | |
c0dbba66 | 273 | adapter->hs_enabling = false; |
5e6e3a92 | 274 | |
5e6e3a92 BZ |
275 | return ret; |
276 | } | |
277 | ||
98e6b9df W |
278 | /* Device ID for SD8786 */ |
279 | #define SDIO_DEVICE_ID_MARVELL_8786 (0x9116) | |
5e6e3a92 BZ |
280 | /* Device ID for SD8787 */ |
281 | #define SDIO_DEVICE_ID_MARVELL_8787 (0x9119) | |
e3bea1c8 BZ |
282 | /* Device ID for SD8797 */ |
283 | #define SDIO_DEVICE_ID_MARVELL_8797 (0x9129) | |
b60186f8 YAP |
284 | /* Device ID for SD8897 */ |
285 | #define SDIO_DEVICE_ID_MARVELL_8897 (0x912d) | |
030bb75a AP |
286 | /* Device ID for SD8887 */ |
287 | #define SDIO_DEVICE_ID_MARVELL_8887 (0x9135) | |
52bd3d20 YAP |
288 | /* Device ID for SD8801 */ |
289 | #define SDIO_DEVICE_ID_MARVELL_8801 (0x9139) | |
290 | ||
5e6e3a92 BZ |
291 | |
292 | /* WLAN IDs */ | |
293 | static const struct sdio_device_id mwifiex_ids[] = { | |
05889f82 AK |
294 | {SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8786), |
295 | .driver_data = (unsigned long) &mwifiex_sdio_sd8786}, | |
296 | {SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8787), | |
297 | .driver_data = (unsigned long) &mwifiex_sdio_sd8787}, | |
298 | {SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8797), | |
299 | .driver_data = (unsigned long) &mwifiex_sdio_sd8797}, | |
b60186f8 YAP |
300 | {SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8897), |
301 | .driver_data = (unsigned long) &mwifiex_sdio_sd8897}, | |
030bb75a AP |
302 | {SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8887), |
303 | .driver_data = (unsigned long)&mwifiex_sdio_sd8887}, | |
52bd3d20 YAP |
304 | {SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8801), |
305 | .driver_data = (unsigned long)&mwifiex_sdio_sd8801}, | |
5e6e3a92 BZ |
306 | {}, |
307 | }; | |
308 | ||
309 | MODULE_DEVICE_TABLE(sdio, mwifiex_ids); | |
310 | ||
311 | static const struct dev_pm_ops mwifiex_sdio_pm_ops = { | |
312 | .suspend = mwifiex_sdio_suspend, | |
313 | .resume = mwifiex_sdio_resume, | |
314 | }; | |
315 | ||
316 | static struct sdio_driver mwifiex_sdio = { | |
317 | .name = "mwifiex_sdio", | |
318 | .id_table = mwifiex_ids, | |
319 | .probe = mwifiex_sdio_probe, | |
320 | .remove = mwifiex_sdio_remove, | |
321 | .drv = { | |
322 | .owner = THIS_MODULE, | |
323 | .pm = &mwifiex_sdio_pm_ops, | |
324 | } | |
325 | }; | |
326 | ||
232fde06 DD |
327 | /* Write data into SDIO card register. Caller claims SDIO device. */ |
328 | static int | |
329 | mwifiex_write_reg_locked(struct sdio_func *func, u32 reg, u8 data) | |
330 | { | |
331 | int ret = -1; | |
332 | sdio_writeb(func, data, reg, &ret); | |
333 | return ret; | |
334 | } | |
335 | ||
5e6e3a92 BZ |
336 | /* |
337 | * This function writes data into SDIO card register. | |
338 | */ | |
339 | static int | |
ab93d4ff | 340 | mwifiex_write_reg(struct mwifiex_adapter *adapter, u32 reg, u8 data) |
5e6e3a92 BZ |
341 | { |
342 | struct sdio_mmc_card *card = adapter->card; | |
232fde06 | 343 | int ret; |
5e6e3a92 BZ |
344 | |
345 | sdio_claim_host(card->func); | |
232fde06 | 346 | ret = mwifiex_write_reg_locked(card->func, reg, data); |
5e6e3a92 BZ |
347 | sdio_release_host(card->func); |
348 | ||
349 | return ret; | |
350 | } | |
351 | ||
352 | /* | |
353 | * This function reads data from SDIO card register. | |
354 | */ | |
355 | static int | |
ab93d4ff | 356 | mwifiex_read_reg(struct mwifiex_adapter *adapter, u32 reg, u8 *data) |
5e6e3a92 BZ |
357 | { |
358 | struct sdio_mmc_card *card = adapter->card; | |
359 | int ret = -1; | |
360 | u8 val; | |
361 | ||
362 | sdio_claim_host(card->func); | |
363 | val = sdio_readb(card->func, reg, &ret); | |
364 | sdio_release_host(card->func); | |
365 | ||
366 | *data = val; | |
367 | ||
368 | return ret; | |
369 | } | |
370 | ||
371 | /* | |
372 | * This function writes multiple data into SDIO card memory. | |
373 | * | |
374 | * This does not work in suspended mode. | |
375 | */ | |
376 | static int | |
377 | mwifiex_write_data_sync(struct mwifiex_adapter *adapter, | |
572e8f3e | 378 | u8 *buffer, u32 pkt_len, u32 port) |
5e6e3a92 BZ |
379 | { |
380 | struct sdio_mmc_card *card = adapter->card; | |
5b2e2ecc | 381 | int ret; |
5e6e3a92 BZ |
382 | u8 blk_mode = |
383 | (port & MWIFIEX_SDIO_BYTE_MODE_MASK) ? BYTE_MODE : BLOCK_MODE; | |
384 | u32 blk_size = (blk_mode == BLOCK_MODE) ? MWIFIEX_SDIO_BLOCK_SIZE : 1; | |
385 | u32 blk_cnt = | |
386 | (blk_mode == | |
387 | BLOCK_MODE) ? (pkt_len / | |
388 | MWIFIEX_SDIO_BLOCK_SIZE) : pkt_len; | |
389 | u32 ioport = (port & MWIFIEX_SDIO_IO_PORT_MASK); | |
390 | ||
391 | if (adapter->is_suspended) { | |
acebe8c1 ZL |
392 | mwifiex_dbg(adapter, ERROR, |
393 | "%s: not allowed while suspended\n", __func__); | |
5e6e3a92 BZ |
394 | return -1; |
395 | } | |
396 | ||
397 | sdio_claim_host(card->func); | |
398 | ||
5b2e2ecc | 399 | ret = sdio_writesb(card->func, ioport, buffer, blk_cnt * blk_size); |
5e6e3a92 BZ |
400 | |
401 | sdio_release_host(card->func); | |
402 | ||
403 | return ret; | |
404 | } | |
405 | ||
406 | /* | |
407 | * This function reads multiple data from SDIO card memory. | |
408 | */ | |
572e8f3e AK |
409 | static int mwifiex_read_data_sync(struct mwifiex_adapter *adapter, u8 *buffer, |
410 | u32 len, u32 port, u8 claim) | |
5e6e3a92 BZ |
411 | { |
412 | struct sdio_mmc_card *card = adapter->card; | |
5b2e2ecc | 413 | int ret; |
5dbd326c YAP |
414 | u8 blk_mode = (port & MWIFIEX_SDIO_BYTE_MODE_MASK) ? BYTE_MODE |
415 | : BLOCK_MODE; | |
5e6e3a92 | 416 | u32 blk_size = (blk_mode == BLOCK_MODE) ? MWIFIEX_SDIO_BLOCK_SIZE : 1; |
5dbd326c YAP |
417 | u32 blk_cnt = (blk_mode == BLOCK_MODE) ? (len / MWIFIEX_SDIO_BLOCK_SIZE) |
418 | : len; | |
5e6e3a92 BZ |
419 | u32 ioport = (port & MWIFIEX_SDIO_IO_PORT_MASK); |
420 | ||
421 | if (claim) | |
422 | sdio_claim_host(card->func); | |
423 | ||
5b2e2ecc | 424 | ret = sdio_readsb(card->func, buffer, ioport, blk_cnt * blk_size); |
5e6e3a92 BZ |
425 | |
426 | if (claim) | |
427 | sdio_release_host(card->func); | |
428 | ||
429 | return ret; | |
430 | } | |
431 | ||
432 | /* | |
433 | * This function wakes up the card. | |
434 | * | |
435 | * A host power up command is written to the card configuration | |
436 | * register to wake up the card. | |
437 | */ | |
438 | static int mwifiex_pm_wakeup_card(struct mwifiex_adapter *adapter) | |
439 | { | |
acebe8c1 ZL |
440 | mwifiex_dbg(adapter, EVENT, |
441 | "event: wakeup device...\n"); | |
5e6e3a92 | 442 | |
636c4598 | 443 | return mwifiex_write_reg(adapter, CONFIGURATION_REG, HOST_POWER_UP); |
5e6e3a92 BZ |
444 | } |
445 | ||
446 | /* | |
447 | * This function is called after the card has woken up. | |
448 | * | |
449 | * The card configuration register is reset. | |
450 | */ | |
451 | static int mwifiex_pm_wakeup_card_complete(struct mwifiex_adapter *adapter) | |
452 | { | |
acebe8c1 ZL |
453 | mwifiex_dbg(adapter, EVENT, |
454 | "cmd: wakeup device completed\n"); | |
5e6e3a92 | 455 | |
636c4598 | 456 | return mwifiex_write_reg(adapter, CONFIGURATION_REG, 0); |
5e6e3a92 BZ |
457 | } |
458 | ||
459 | /* | |
b60186f8 YAP |
460 | * This function is used to initialize IO ports for the |
461 | * chipsets supporting SDIO new mode eg SD8897. | |
462 | */ | |
463 | static int mwifiex_init_sdio_new_mode(struct mwifiex_adapter *adapter) | |
464 | { | |
465 | u8 reg; | |
554a0113 | 466 | struct sdio_mmc_card *card = adapter->card; |
b60186f8 YAP |
467 | |
468 | adapter->ioport = MEM_PORT; | |
469 | ||
470 | /* enable sdio new mode */ | |
554a0113 | 471 | if (mwifiex_read_reg(adapter, card->reg->card_cfg_2_1_reg, ®)) |
b60186f8 | 472 | return -1; |
554a0113 | 473 | if (mwifiex_write_reg(adapter, card->reg->card_cfg_2_1_reg, |
b60186f8 YAP |
474 | reg | CMD53_NEW_MODE)) |
475 | return -1; | |
476 | ||
477 | /* Configure cmd port and enable reading rx length from the register */ | |
554a0113 | 478 | if (mwifiex_read_reg(adapter, card->reg->cmd_cfg_0, ®)) |
b60186f8 | 479 | return -1; |
554a0113 AP |
480 | if (mwifiex_write_reg(adapter, card->reg->cmd_cfg_0, |
481 | reg | CMD_PORT_RD_LEN_EN)) | |
b60186f8 YAP |
482 | return -1; |
483 | ||
484 | /* Enable Dnld/Upld ready auto reset for cmd port after cmd53 is | |
485 | * completed | |
486 | */ | |
554a0113 | 487 | if (mwifiex_read_reg(adapter, card->reg->cmd_cfg_1, ®)) |
b60186f8 | 488 | return -1; |
554a0113 AP |
489 | if (mwifiex_write_reg(adapter, card->reg->cmd_cfg_1, |
490 | reg | CMD_PORT_AUTO_EN)) | |
b60186f8 YAP |
491 | return -1; |
492 | ||
493 | return 0; | |
494 | } | |
495 | ||
496 | /* This function initializes the IO ports. | |
5e6e3a92 BZ |
497 | * |
498 | * The following operations are performed - | |
499 | * - Read the IO ports (0, 1 and 2) | |
500 | * - Set host interrupt Reset-To-Read to clear | |
501 | * - Set auto re-enable interrupt | |
502 | */ | |
503 | static int mwifiex_init_sdio_ioport(struct mwifiex_adapter *adapter) | |
504 | { | |
ab93d4ff | 505 | u8 reg; |
05889f82 | 506 | struct sdio_mmc_card *card = adapter->card; |
5e6e3a92 BZ |
507 | |
508 | adapter->ioport = 0; | |
509 | ||
b60186f8 YAP |
510 | if (card->supports_sdio_new_mode) { |
511 | if (mwifiex_init_sdio_new_mode(adapter)) | |
512 | return -1; | |
513 | goto cont; | |
514 | } | |
515 | ||
5e6e3a92 | 516 | /* Read the IO port */ |
554a0113 | 517 | if (!mwifiex_read_reg(adapter, card->reg->io_port_0_reg, ®)) |
5e6e3a92 BZ |
518 | adapter->ioport |= (reg & 0xff); |
519 | else | |
520 | return -1; | |
521 | ||
554a0113 | 522 | if (!mwifiex_read_reg(adapter, card->reg->io_port_1_reg, ®)) |
5e6e3a92 BZ |
523 | adapter->ioport |= ((reg & 0xff) << 8); |
524 | else | |
525 | return -1; | |
526 | ||
554a0113 | 527 | if (!mwifiex_read_reg(adapter, card->reg->io_port_2_reg, ®)) |
5e6e3a92 BZ |
528 | adapter->ioport |= ((reg & 0xff) << 16); |
529 | else | |
530 | return -1; | |
b60186f8 | 531 | cont: |
acebe8c1 ZL |
532 | mwifiex_dbg(adapter, INFO, |
533 | "info: SDIO FUNC1 IO port: %#x\n", adapter->ioport); | |
5e6e3a92 BZ |
534 | |
535 | /* Set Host interrupt reset to read to clear */ | |
554a0113 AP |
536 | if (!mwifiex_read_reg(adapter, card->reg->host_int_rsr_reg, ®)) |
537 | mwifiex_write_reg(adapter, card->reg->host_int_rsr_reg, | |
05889f82 | 538 | reg | card->reg->sdio_int_mask); |
5e6e3a92 BZ |
539 | else |
540 | return -1; | |
541 | ||
542 | /* Dnld/Upld ready set to auto reset */ | |
05889f82 AK |
543 | if (!mwifiex_read_reg(adapter, card->reg->card_misc_cfg_reg, ®)) |
544 | mwifiex_write_reg(adapter, card->reg->card_misc_cfg_reg, | |
5e6e3a92 BZ |
545 | reg | AUTO_RE_ENABLE_INT); |
546 | else | |
547 | return -1; | |
548 | ||
549 | return 0; | |
550 | } | |
551 | ||
552 | /* | |
553 | * This function sends data to the card. | |
554 | */ | |
555 | static int mwifiex_write_data_to_card(struct mwifiex_adapter *adapter, | |
556 | u8 *payload, u32 pkt_len, u32 port) | |
557 | { | |
558 | u32 i = 0; | |
270e58e8 | 559 | int ret; |
5e6e3a92 BZ |
560 | |
561 | do { | |
572e8f3e | 562 | ret = mwifiex_write_data_sync(adapter, payload, pkt_len, port); |
5e6e3a92 BZ |
563 | if (ret) { |
564 | i++; | |
acebe8c1 ZL |
565 | mwifiex_dbg(adapter, ERROR, |
566 | "host_to_card, write iomem\t" | |
567 | "(%d) failed: %d\n", i, ret); | |
5dbd326c | 568 | if (mwifiex_write_reg(adapter, CONFIGURATION_REG, 0x04)) |
acebe8c1 ZL |
569 | mwifiex_dbg(adapter, ERROR, |
570 | "write CFG reg failed\n"); | |
5e6e3a92 BZ |
571 | |
572 | ret = -1; | |
573 | if (i > MAX_WRITE_IOMEM_RETRY) | |
574 | return ret; | |
575 | } | |
576 | } while (ret == -1); | |
577 | ||
578 | return ret; | |
579 | } | |
580 | ||
581 | /* | |
582 | * This function gets the read port. | |
583 | * | |
584 | * If control port bit is set in MP read bitmap, the control port | |
585 | * is returned, otherwise the current read port is returned and | |
586 | * the value is increased (provided it does not reach the maximum | |
587 | * limit, in which case it is reset to 1) | |
588 | */ | |
589 | static int mwifiex_get_rd_port(struct mwifiex_adapter *adapter, u8 *port) | |
590 | { | |
591 | struct sdio_mmc_card *card = adapter->card; | |
05889f82 | 592 | const struct mwifiex_sdio_card_reg *reg = card->reg; |
5ac253d5 | 593 | u32 rd_bitmap = card->mp_rd_bitmap; |
5e6e3a92 | 594 | |
acebe8c1 ZL |
595 | mwifiex_dbg(adapter, DATA, |
596 | "data: mp_rd_bitmap=0x%08x\n", rd_bitmap); | |
5e6e3a92 | 597 | |
b60186f8 YAP |
598 | if (card->supports_sdio_new_mode) { |
599 | if (!(rd_bitmap & reg->data_port_mask)) | |
600 | return -1; | |
601 | } else { | |
602 | if (!(rd_bitmap & (CTRL_PORT_MASK | reg->data_port_mask))) | |
603 | return -1; | |
604 | } | |
5e6e3a92 | 605 | |
b60186f8 YAP |
606 | if ((card->has_control_mask) && |
607 | (card->mp_rd_bitmap & CTRL_PORT_MASK)) { | |
5ac253d5 | 608 | card->mp_rd_bitmap &= (u32) (~CTRL_PORT_MASK); |
5e6e3a92 | 609 | *port = CTRL_PORT; |
acebe8c1 ZL |
610 | mwifiex_dbg(adapter, DATA, |
611 | "data: port=%d mp_rd_bitmap=0x%08x\n", | |
612 | *port, card->mp_rd_bitmap); | |
e6a52030 | 613 | return 0; |
5e6e3a92 | 614 | } |
e6a52030 AK |
615 | |
616 | if (!(card->mp_rd_bitmap & (1 << card->curr_rd_port))) | |
617 | return -1; | |
618 | ||
619 | /* We are now handling the SDIO data ports */ | |
620 | card->mp_rd_bitmap &= (u32)(~(1 << card->curr_rd_port)); | |
621 | *port = card->curr_rd_port; | |
622 | ||
623 | if (++card->curr_rd_port == card->max_ports) | |
624 | card->curr_rd_port = reg->start_rd_port; | |
625 | ||
acebe8c1 ZL |
626 | mwifiex_dbg(adapter, DATA, |
627 | "data: port=%d mp_rd_bitmap=0x%08x -> 0x%08x\n", | |
628 | *port, rd_bitmap, card->mp_rd_bitmap); | |
e6a52030 | 629 | |
5e6e3a92 BZ |
630 | return 0; |
631 | } | |
632 | ||
633 | /* | |
634 | * This function gets the write port for data. | |
635 | * | |
636 | * The current write port is returned if available and the value is | |
637 | * increased (provided it does not reach the maximum limit, in which | |
638 | * case it is reset to 1) | |
639 | */ | |
0fc0d43b | 640 | static int mwifiex_get_wr_port_data(struct mwifiex_adapter *adapter, u32 *port) |
5e6e3a92 BZ |
641 | { |
642 | struct sdio_mmc_card *card = adapter->card; | |
b60186f8 | 643 | const struct mwifiex_sdio_card_reg *reg = card->reg; |
5ac253d5 | 644 | u32 wr_bitmap = card->mp_wr_bitmap; |
5e6e3a92 | 645 | |
acebe8c1 ZL |
646 | mwifiex_dbg(adapter, DATA, |
647 | "data: mp_wr_bitmap=0x%08x\n", wr_bitmap); | |
5e6e3a92 | 648 | |
c48ba040 | 649 | if (!(wr_bitmap & card->mp_data_port_mask)) { |
b60186f8 YAP |
650 | adapter->data_sent = true; |
651 | return -EBUSY; | |
b60186f8 | 652 | } |
5e6e3a92 BZ |
653 | |
654 | if (card->mp_wr_bitmap & (1 << card->curr_wr_port)) { | |
5ac253d5 | 655 | card->mp_wr_bitmap &= (u32) (~(1 << card->curr_wr_port)); |
5e6e3a92 | 656 | *port = card->curr_wr_port; |
c48ba040 | 657 | if (++card->curr_wr_port == card->mp_end_port) |
b60186f8 | 658 | card->curr_wr_port = reg->start_wr_port; |
5e6e3a92 BZ |
659 | } else { |
660 | adapter->data_sent = true; | |
661 | return -EBUSY; | |
662 | } | |
663 | ||
b60186f8 | 664 | if ((card->has_control_mask) && (*port == CTRL_PORT)) { |
acebe8c1 ZL |
665 | mwifiex_dbg(adapter, ERROR, |
666 | "invalid data port=%d cur port=%d mp_wr_bitmap=0x%08x -> 0x%08x\n", | |
667 | *port, card->curr_wr_port, wr_bitmap, | |
668 | card->mp_wr_bitmap); | |
5e6e3a92 BZ |
669 | return -1; |
670 | } | |
671 | ||
acebe8c1 ZL |
672 | mwifiex_dbg(adapter, DATA, |
673 | "data: port=%d mp_wr_bitmap=0x%08x -> 0x%08x\n", | |
674 | *port, wr_bitmap, card->mp_wr_bitmap); | |
5e6e3a92 BZ |
675 | |
676 | return 0; | |
677 | } | |
678 | ||
679 | /* | |
680 | * This function polls the card status. | |
681 | */ | |
682 | static int | |
683 | mwifiex_sdio_poll_card_status(struct mwifiex_adapter *adapter, u8 bits) | |
684 | { | |
05889f82 | 685 | struct sdio_mmc_card *card = adapter->card; |
5e6e3a92 | 686 | u32 tries; |
ab93d4ff | 687 | u8 cs; |
5e6e3a92 BZ |
688 | |
689 | for (tries = 0; tries < MAX_POLL_TRIES; tries++) { | |
05889f82 | 690 | if (mwifiex_read_reg(adapter, card->reg->poll_reg, &cs)) |
5e6e3a92 BZ |
691 | break; |
692 | else if ((cs & bits) == bits) | |
693 | return 0; | |
694 | ||
e7891ba2 | 695 | usleep_range(10, 20); |
5e6e3a92 BZ |
696 | } |
697 | ||
acebe8c1 ZL |
698 | mwifiex_dbg(adapter, ERROR, |
699 | "poll card status failed, tries = %d\n", tries); | |
5dbd326c | 700 | |
5e6e3a92 BZ |
701 | return -1; |
702 | } | |
703 | ||
704 | /* | |
705 | * This function reads the firmware status. | |
706 | */ | |
707 | static int | |
708 | mwifiex_sdio_read_fw_status(struct mwifiex_adapter *adapter, u16 *dat) | |
709 | { | |
05889f82 AK |
710 | struct sdio_mmc_card *card = adapter->card; |
711 | const struct mwifiex_sdio_card_reg *reg = card->reg; | |
ab93d4ff | 712 | u8 fws0, fws1; |
5e6e3a92 | 713 | |
05889f82 | 714 | if (mwifiex_read_reg(adapter, reg->status_reg_0, &fws0)) |
5e6e3a92 BZ |
715 | return -1; |
716 | ||
05889f82 | 717 | if (mwifiex_read_reg(adapter, reg->status_reg_1, &fws1)) |
5e6e3a92 BZ |
718 | return -1; |
719 | ||
720 | *dat = (u16) ((fws1 << 8) | fws0); | |
721 | ||
722 | return 0; | |
723 | } | |
724 | ||
725 | /* | |
726 | * This function disables the host interrupt. | |
727 | * | |
728 | * The host interrupt mask is read, the disable bit is reset and | |
729 | * written back to the card host interrupt mask register. | |
730 | */ | |
232fde06 | 731 | static void mwifiex_sdio_disable_host_int(struct mwifiex_adapter *adapter) |
5e6e3a92 | 732 | { |
232fde06 DD |
733 | struct sdio_mmc_card *card = adapter->card; |
734 | struct sdio_func *func = card->func; | |
5e6e3a92 | 735 | |
232fde06 | 736 | sdio_claim_host(func); |
554a0113 | 737 | mwifiex_write_reg_locked(func, card->reg->host_int_mask_reg, 0); |
232fde06 DD |
738 | sdio_release_irq(func); |
739 | sdio_release_host(func); | |
5e6e3a92 BZ |
740 | } |
741 | ||
2cdf359a AK |
742 | /* |
743 | * This function reads the interrupt status from card. | |
744 | */ | |
745 | static void mwifiex_interrupt_status(struct mwifiex_adapter *adapter) | |
746 | { | |
747 | struct sdio_mmc_card *card = adapter->card; | |
748 | u8 sdio_ireg; | |
749 | unsigned long flags; | |
750 | ||
751 | if (mwifiex_read_data_sync(adapter, card->mp_regs, | |
752 | card->reg->max_mp_regs, | |
753 | REG_PORT | MWIFIEX_SDIO_BYTE_MODE_MASK, 0)) { | |
acebe8c1 | 754 | mwifiex_dbg(adapter, ERROR, "read mp_regs failed\n"); |
2cdf359a AK |
755 | return; |
756 | } | |
757 | ||
554a0113 | 758 | sdio_ireg = card->mp_regs[card->reg->host_int_status_reg]; |
2cdf359a AK |
759 | if (sdio_ireg) { |
760 | /* | |
761 | * DN_LD_HOST_INT_STATUS and/or UP_LD_HOST_INT_STATUS | |
762 | * For SDIO new mode CMD port interrupts | |
763 | * DN_LD_CMD_PORT_HOST_INT_STATUS and/or | |
764 | * UP_LD_CMD_PORT_HOST_INT_STATUS | |
765 | * Clear the interrupt status register | |
766 | */ | |
acebe8c1 ZL |
767 | mwifiex_dbg(adapter, INTR, |
768 | "int: sdio_ireg = %#x\n", sdio_ireg); | |
2cdf359a AK |
769 | spin_lock_irqsave(&adapter->int_lock, flags); |
770 | adapter->int_status |= sdio_ireg; | |
771 | spin_unlock_irqrestore(&adapter->int_lock, flags); | |
772 | } | |
773 | } | |
774 | ||
775 | /* | |
776 | * SDIO interrupt handler. | |
777 | * | |
778 | * This function reads the interrupt status from firmware and handles | |
779 | * the interrupt in current thread (ksdioirqd) right away. | |
780 | */ | |
781 | static void | |
782 | mwifiex_sdio_interrupt(struct sdio_func *func) | |
783 | { | |
784 | struct mwifiex_adapter *adapter; | |
785 | struct sdio_mmc_card *card; | |
786 | ||
787 | card = sdio_get_drvdata(func); | |
788 | if (!card || !card->adapter) { | |
789 | pr_debug("int: func=%p card=%p adapter=%p\n", | |
790 | func, card, card ? card->adapter : NULL); | |
791 | return; | |
792 | } | |
793 | adapter = card->adapter; | |
794 | ||
795 | if (!adapter->pps_uapsd_mode && adapter->ps_state == PS_STATE_SLEEP) | |
796 | adapter->ps_state = PS_STATE_AWAKE; | |
797 | ||
798 | mwifiex_interrupt_status(adapter); | |
799 | mwifiex_main_process(adapter); | |
800 | } | |
801 | ||
5e6e3a92 BZ |
802 | /* |
803 | * This function enables the host interrupt. | |
804 | * | |
805 | * The host interrupt enable mask is written to the card | |
806 | * host interrupt mask register. | |
807 | */ | |
808 | static int mwifiex_sdio_enable_host_int(struct mwifiex_adapter *adapter) | |
809 | { | |
05889f82 | 810 | struct sdio_mmc_card *card = adapter->card; |
232fde06 DD |
811 | struct sdio_func *func = card->func; |
812 | int ret; | |
813 | ||
814 | sdio_claim_host(func); | |
815 | ||
816 | /* Request the SDIO IRQ */ | |
817 | ret = sdio_claim_irq(func, mwifiex_sdio_interrupt); | |
818 | if (ret) { | |
acebe8c1 ZL |
819 | mwifiex_dbg(adapter, ERROR, |
820 | "claim irq failed: ret=%d\n", ret); | |
232fde06 DD |
821 | goto out; |
822 | } | |
05889f82 | 823 | |
5e6e3a92 | 824 | /* Simply write the mask to the register */ |
554a0113 | 825 | ret = mwifiex_write_reg_locked(func, card->reg->host_int_mask_reg, |
232fde06 DD |
826 | card->reg->host_int_enable); |
827 | if (ret) { | |
acebe8c1 ZL |
828 | mwifiex_dbg(adapter, ERROR, |
829 | "enable host interrupt failed\n"); | |
232fde06 | 830 | sdio_release_irq(func); |
5e6e3a92 | 831 | } |
232fde06 DD |
832 | |
833 | out: | |
834 | sdio_release_host(func); | |
835 | return ret; | |
5e6e3a92 BZ |
836 | } |
837 | ||
838 | /* | |
839 | * This function sends a data buffer to the card. | |
840 | */ | |
841 | static int mwifiex_sdio_card_to_host(struct mwifiex_adapter *adapter, | |
842 | u32 *type, u8 *buffer, | |
843 | u32 npayload, u32 ioport) | |
844 | { | |
270e58e8 | 845 | int ret; |
5e6e3a92 BZ |
846 | u32 nb; |
847 | ||
848 | if (!buffer) { | |
acebe8c1 ZL |
849 | mwifiex_dbg(adapter, ERROR, |
850 | "%s: buffer is NULL\n", __func__); | |
5e6e3a92 BZ |
851 | return -1; |
852 | } | |
853 | ||
572e8f3e | 854 | ret = mwifiex_read_data_sync(adapter, buffer, npayload, ioport, 1); |
5e6e3a92 BZ |
855 | |
856 | if (ret) { | |
acebe8c1 ZL |
857 | mwifiex_dbg(adapter, ERROR, |
858 | "%s: read iomem failed: %d\n", __func__, | |
5dbd326c | 859 | ret); |
5e6e3a92 BZ |
860 | return -1; |
861 | } | |
862 | ||
863 | nb = le16_to_cpu(*(__le16 *) (buffer)); | |
864 | if (nb > npayload) { | |
acebe8c1 ZL |
865 | mwifiex_dbg(adapter, ERROR, |
866 | "%s: invalid packet, nb=%d npayload=%d\n", | |
867 | __func__, nb, npayload); | |
5e6e3a92 BZ |
868 | return -1; |
869 | } | |
870 | ||
871 | *type = le16_to_cpu(*(__le16 *) (buffer + 2)); | |
872 | ||
873 | return ret; | |
874 | } | |
875 | ||
876 | /* | |
877 | * This function downloads the firmware to the card. | |
878 | * | |
879 | * Firmware is downloaded to the card in blocks. Every block download | |
880 | * is tested for CRC errors, and retried a number of times before | |
881 | * returning failure. | |
882 | */ | |
883 | static int mwifiex_prog_fw_w_helper(struct mwifiex_adapter *adapter, | |
884 | struct mwifiex_fw_image *fw) | |
885 | { | |
05889f82 AK |
886 | struct sdio_mmc_card *card = adapter->card; |
887 | const struct mwifiex_sdio_card_reg *reg = card->reg; | |
270e58e8 | 888 | int ret; |
5e6e3a92 BZ |
889 | u8 *firmware = fw->fw_buf; |
890 | u32 firmware_len = fw->fw_len; | |
891 | u32 offset = 0; | |
ab93d4ff | 892 | u8 base0, base1; |
5e6e3a92 BZ |
893 | u8 *fwbuf; |
894 | u16 len = 0; | |
270e58e8 | 895 | u32 txlen, tx_blocks = 0, tries; |
5e6e3a92 BZ |
896 | u32 i = 0; |
897 | ||
898 | if (!firmware_len) { | |
acebe8c1 ZL |
899 | mwifiex_dbg(adapter, ERROR, |
900 | "firmware image not found! Terminating download\n"); | |
5e6e3a92 BZ |
901 | return -1; |
902 | } | |
903 | ||
acebe8c1 ZL |
904 | mwifiex_dbg(adapter, INFO, |
905 | "info: downloading FW image (%d bytes)\n", | |
906 | firmware_len); | |
5e6e3a92 BZ |
907 | |
908 | /* Assume that the allocated buffer is 8-byte aligned */ | |
909 | fwbuf = kzalloc(MWIFIEX_UPLD_SIZE, GFP_KERNEL); | |
0d2e7a5c | 910 | if (!fwbuf) |
b53575ec | 911 | return -ENOMEM; |
5e6e3a92 BZ |
912 | |
913 | /* Perform firmware data transfer */ | |
914 | do { | |
915 | /* The host polls for the DN_LD_CARD_RDY and CARD_IO_READY | |
916 | bits */ | |
917 | ret = mwifiex_sdio_poll_card_status(adapter, CARD_IO_READY | | |
918 | DN_LD_CARD_RDY); | |
919 | if (ret) { | |
acebe8c1 ZL |
920 | mwifiex_dbg(adapter, ERROR, |
921 | "FW download with helper:\t" | |
922 | "poll status timeout @ %d\n", offset); | |
5e6e3a92 BZ |
923 | goto done; |
924 | } | |
925 | ||
926 | /* More data? */ | |
927 | if (offset >= firmware_len) | |
928 | break; | |
929 | ||
930 | for (tries = 0; tries < MAX_POLL_TRIES; tries++) { | |
05889f82 | 931 | ret = mwifiex_read_reg(adapter, reg->base_0_reg, |
5e6e3a92 BZ |
932 | &base0); |
933 | if (ret) { | |
acebe8c1 ZL |
934 | mwifiex_dbg(adapter, ERROR, |
935 | "dev BASE0 register read failed:\t" | |
936 | "base0=%#04X(%d). Terminating dnld\n", | |
937 | base0, base0); | |
5e6e3a92 BZ |
938 | goto done; |
939 | } | |
05889f82 | 940 | ret = mwifiex_read_reg(adapter, reg->base_1_reg, |
5e6e3a92 BZ |
941 | &base1); |
942 | if (ret) { | |
acebe8c1 ZL |
943 | mwifiex_dbg(adapter, ERROR, |
944 | "dev BASE1 register read failed:\t" | |
945 | "base1=%#04X(%d). Terminating dnld\n", | |
946 | base1, base1); | |
5e6e3a92 BZ |
947 | goto done; |
948 | } | |
949 | len = (u16) (((base1 & 0xff) << 8) | (base0 & 0xff)); | |
950 | ||
951 | if (len) | |
952 | break; | |
953 | ||
e7891ba2 | 954 | usleep_range(10, 20); |
5e6e3a92 BZ |
955 | } |
956 | ||
957 | if (!len) { | |
958 | break; | |
959 | } else if (len > MWIFIEX_UPLD_SIZE) { | |
acebe8c1 ZL |
960 | mwifiex_dbg(adapter, ERROR, |
961 | "FW dnld failed @ %d, invalid length %d\n", | |
962 | offset, len); | |
5e6e3a92 BZ |
963 | ret = -1; |
964 | goto done; | |
965 | } | |
966 | ||
967 | txlen = len; | |
968 | ||
969 | if (len & BIT(0)) { | |
970 | i++; | |
971 | if (i > MAX_WRITE_IOMEM_RETRY) { | |
acebe8c1 ZL |
972 | mwifiex_dbg(adapter, ERROR, |
973 | "FW dnld failed @ %d, over max retry\n", | |
974 | offset); | |
5e6e3a92 BZ |
975 | ret = -1; |
976 | goto done; | |
977 | } | |
acebe8c1 ZL |
978 | mwifiex_dbg(adapter, ERROR, |
979 | "CRC indicated by the helper:\t" | |
980 | "len = 0x%04X, txlen = %d\n", len, txlen); | |
5e6e3a92 BZ |
981 | len &= ~BIT(0); |
982 | /* Setting this to 0 to resend from same offset */ | |
983 | txlen = 0; | |
984 | } else { | |
985 | i = 0; | |
986 | ||
987 | /* Set blocksize to transfer - checking for last | |
988 | block */ | |
989 | if (firmware_len - offset < txlen) | |
990 | txlen = firmware_len - offset; | |
991 | ||
5dbd326c YAP |
992 | tx_blocks = (txlen + MWIFIEX_SDIO_BLOCK_SIZE - 1) |
993 | / MWIFIEX_SDIO_BLOCK_SIZE; | |
5e6e3a92 BZ |
994 | |
995 | /* Copy payload to buffer */ | |
996 | memmove(fwbuf, &firmware[offset], txlen); | |
997 | } | |
998 | ||
999 | ret = mwifiex_write_data_sync(adapter, fwbuf, tx_blocks * | |
1000 | MWIFIEX_SDIO_BLOCK_SIZE, | |
572e8f3e | 1001 | adapter->ioport); |
5e6e3a92 | 1002 | if (ret) { |
acebe8c1 ZL |
1003 | mwifiex_dbg(adapter, ERROR, |
1004 | "FW download, write iomem (%d) failed @ %d\n", | |
1005 | i, offset); | |
5e6e3a92 | 1006 | if (mwifiex_write_reg(adapter, CONFIGURATION_REG, 0x04)) |
acebe8c1 ZL |
1007 | mwifiex_dbg(adapter, ERROR, |
1008 | "write CFG reg failed\n"); | |
5e6e3a92 BZ |
1009 | |
1010 | ret = -1; | |
1011 | goto done; | |
1012 | } | |
1013 | ||
1014 | offset += txlen; | |
1015 | } while (true); | |
1016 | ||
acebe8c1 ZL |
1017 | mwifiex_dbg(adapter, MSG, |
1018 | "info: FW download over, size %d bytes\n", offset); | |
5e6e3a92 BZ |
1019 | |
1020 | ret = 0; | |
1021 | done: | |
1022 | kfree(fwbuf); | |
1023 | return ret; | |
1024 | } | |
1025 | ||
1026 | /* | |
1027 | * This function checks the firmware status in card. | |
1028 | * | |
1029 | * The winner interface is also determined by this function. | |
1030 | */ | |
1031 | static int mwifiex_check_fw_status(struct mwifiex_adapter *adapter, | |
d930faee | 1032 | u32 poll_num) |
5e6e3a92 | 1033 | { |
05889f82 | 1034 | struct sdio_mmc_card *card = adapter->card; |
5e6e3a92 BZ |
1035 | int ret = 0; |
1036 | u16 firmware_stat; | |
1037 | u32 tries; | |
ab93d4ff | 1038 | u8 winner_status; |
5e6e3a92 BZ |
1039 | |
1040 | /* Wait for firmware initialization event */ | |
1041 | for (tries = 0; tries < poll_num; tries++) { | |
1042 | ret = mwifiex_sdio_read_fw_status(adapter, &firmware_stat); | |
1043 | if (ret) | |
1044 | continue; | |
d930faee | 1045 | if (firmware_stat == FIRMWARE_READY_SDIO) { |
5e6e3a92 BZ |
1046 | ret = 0; |
1047 | break; | |
1048 | } else { | |
a76b20e5 | 1049 | msleep(100); |
5e6e3a92 BZ |
1050 | ret = -1; |
1051 | } | |
1052 | } | |
1053 | ||
d930faee | 1054 | if (ret) { |
5e6e3a92 | 1055 | if (mwifiex_read_reg |
05889f82 | 1056 | (adapter, card->reg->status_reg_0, &winner_status)) |
5e6e3a92 BZ |
1057 | winner_status = 0; |
1058 | ||
1059 | if (winner_status) | |
d930faee | 1060 | adapter->winner = 0; |
5e6e3a92 | 1061 | else |
d930faee | 1062 | adapter->winner = 1; |
5e6e3a92 BZ |
1063 | } |
1064 | return ret; | |
1065 | } | |
1066 | ||
92263a84 ZL |
1067 | /* |
1068 | * This function decode sdio aggreation pkt. | |
1069 | * | |
1070 | * Based on the the data block size and pkt_len, | |
1071 | * skb data will be decoded to few packets. | |
1072 | */ | |
1073 | static void mwifiex_deaggr_sdio_pkt(struct mwifiex_adapter *adapter, | |
1074 | struct sk_buff *skb) | |
1075 | { | |
1076 | u32 total_pkt_len, pkt_len; | |
1077 | struct sk_buff *skb_deaggr; | |
1078 | u32 pkt_type; | |
1079 | u16 blk_size; | |
1080 | u8 blk_num; | |
1081 | u8 *data; | |
1082 | ||
1083 | data = skb->data; | |
1084 | total_pkt_len = skb->len; | |
1085 | ||
1086 | while (total_pkt_len >= (SDIO_HEADER_OFFSET + INTF_HEADER_LEN)) { | |
1087 | if (total_pkt_len < adapter->sdio_rx_block_size) | |
1088 | break; | |
1089 | blk_num = *(data + BLOCK_NUMBER_OFFSET); | |
1090 | blk_size = adapter->sdio_rx_block_size * blk_num; | |
1091 | if (blk_size > total_pkt_len) { | |
acebe8c1 ZL |
1092 | mwifiex_dbg(adapter, ERROR, |
1093 | "%s: error in blk_size,\t" | |
1094 | "blk_num=%d, blk_size=%d, total_pkt_len=%d\n", | |
1095 | __func__, blk_num, blk_size, total_pkt_len); | |
92263a84 ZL |
1096 | break; |
1097 | } | |
1098 | pkt_len = le16_to_cpu(*(__le16 *)(data + SDIO_HEADER_OFFSET)); | |
1099 | pkt_type = le16_to_cpu(*(__le16 *)(data + SDIO_HEADER_OFFSET + | |
1100 | 2)); | |
1101 | if ((pkt_len + SDIO_HEADER_OFFSET) > blk_size) { | |
acebe8c1 ZL |
1102 | mwifiex_dbg(adapter, ERROR, |
1103 | "%s: error in pkt_len,\t" | |
1104 | "pkt_len=%d, blk_size=%d\n", | |
1105 | __func__, pkt_len, blk_size); | |
92263a84 ZL |
1106 | break; |
1107 | } | |
1108 | skb_deaggr = mwifiex_alloc_dma_align_buf(pkt_len, | |
1109 | GFP_KERNEL | GFP_DMA); | |
1110 | if (!skb_deaggr) | |
1111 | break; | |
1112 | skb_put(skb_deaggr, pkt_len); | |
1113 | memcpy(skb_deaggr->data, data + SDIO_HEADER_OFFSET, pkt_len); | |
1114 | skb_pull(skb_deaggr, INTF_HEADER_LEN); | |
1115 | ||
1116 | mwifiex_handle_rx_packet(adapter, skb_deaggr); | |
1117 | data += blk_size; | |
1118 | total_pkt_len -= blk_size; | |
1119 | } | |
1120 | } | |
1121 | ||
5e6e3a92 BZ |
1122 | /* |
1123 | * This function decodes a received packet. | |
1124 | * | |
1125 | * Based on the type, the packet is treated as either a data, or | |
1126 | * a command response, or an event, and the correct handler | |
1127 | * function is invoked. | |
1128 | */ | |
1129 | static int mwifiex_decode_rx_packet(struct mwifiex_adapter *adapter, | |
1130 | struct sk_buff *skb, u32 upld_typ) | |
1131 | { | |
1132 | u8 *cmd_buf; | |
d03b4aa7 AP |
1133 | __le16 *curr_ptr = (__le16 *)skb->data; |
1134 | u16 pkt_len = le16_to_cpu(*curr_ptr); | |
92263a84 | 1135 | struct mwifiex_rxinfo *rx_info; |
5e6e3a92 | 1136 | |
92263a84 ZL |
1137 | if (upld_typ != MWIFIEX_TYPE_AGGR_DATA) { |
1138 | skb_trim(skb, pkt_len); | |
1139 | skb_pull(skb, INTF_HEADER_LEN); | |
1140 | } | |
5e6e3a92 BZ |
1141 | |
1142 | switch (upld_typ) { | |
92263a84 | 1143 | case MWIFIEX_TYPE_AGGR_DATA: |
acebe8c1 ZL |
1144 | mwifiex_dbg(adapter, INFO, |
1145 | "info: --- Rx: Aggr Data packet ---\n"); | |
92263a84 ZL |
1146 | rx_info = MWIFIEX_SKB_RXCB(skb); |
1147 | rx_info->buf_type = MWIFIEX_TYPE_AGGR_DATA; | |
1148 | if (adapter->rx_work_enabled) { | |
1149 | skb_queue_tail(&adapter->rx_data_q, skb); | |
1150 | atomic_inc(&adapter->rx_pending); | |
1151 | adapter->data_received = true; | |
1152 | } else { | |
1153 | mwifiex_deaggr_sdio_pkt(adapter, skb); | |
1154 | dev_kfree_skb_any(skb); | |
1155 | } | |
1156 | break; | |
1157 | ||
5e6e3a92 | 1158 | case MWIFIEX_TYPE_DATA: |
acebe8c1 ZL |
1159 | mwifiex_dbg(adapter, DATA, |
1160 | "info: --- Rx: Data packet ---\n"); | |
6e251174 | 1161 | if (adapter->rx_work_enabled) { |
6e251174 | 1162 | skb_queue_tail(&adapter->rx_data_q, skb); |
6e251174 AP |
1163 | adapter->data_received = true; |
1164 | atomic_inc(&adapter->rx_pending); | |
1165 | } else { | |
1166 | mwifiex_handle_rx_packet(adapter, skb); | |
1167 | } | |
5e6e3a92 BZ |
1168 | break; |
1169 | ||
1170 | case MWIFIEX_TYPE_CMD: | |
acebe8c1 ZL |
1171 | mwifiex_dbg(adapter, CMD, |
1172 | "info: --- Rx: Cmd Response ---\n"); | |
5e6e3a92 BZ |
1173 | /* take care of curr_cmd = NULL case */ |
1174 | if (!adapter->curr_cmd) { | |
1175 | cmd_buf = adapter->upld_buf; | |
1176 | ||
1177 | if (adapter->ps_state == PS_STATE_SLEEP_CFM) | |
1178 | mwifiex_process_sleep_confirm_resp(adapter, | |
5dbd326c YAP |
1179 | skb->data, |
1180 | skb->len); | |
5e6e3a92 | 1181 | |
5dbd326c YAP |
1182 | memcpy(cmd_buf, skb->data, |
1183 | min_t(u32, MWIFIEX_SIZE_OF_CMD_BUFFER, | |
1184 | skb->len)); | |
5e6e3a92 BZ |
1185 | |
1186 | dev_kfree_skb_any(skb); | |
1187 | } else { | |
1188 | adapter->cmd_resp_received = true; | |
1189 | adapter->curr_cmd->resp_skb = skb; | |
1190 | } | |
1191 | break; | |
1192 | ||
1193 | case MWIFIEX_TYPE_EVENT: | |
acebe8c1 ZL |
1194 | mwifiex_dbg(adapter, EVENT, |
1195 | "info: --- Rx: Event ---\n"); | |
cfcd926e | 1196 | adapter->event_cause = le32_to_cpu(*(__le32 *) skb->data); |
5e6e3a92 | 1197 | |
5e6e3a92 | 1198 | if ((skb->len > 0) && (skb->len < MAX_EVENT_SIZE)) |
e80c81dc AK |
1199 | memcpy(adapter->event_body, |
1200 | skb->data + MWIFIEX_EVENT_HEADER_LEN, | |
1201 | skb->len); | |
5e6e3a92 BZ |
1202 | |
1203 | /* event cause has been saved to adapter->event_cause */ | |
1204 | adapter->event_received = true; | |
1205 | adapter->event_skb = skb; | |
1206 | ||
1207 | break; | |
1208 | ||
1209 | default: | |
acebe8c1 ZL |
1210 | mwifiex_dbg(adapter, ERROR, |
1211 | "unknown upload type %#x\n", upld_typ); | |
5e6e3a92 BZ |
1212 | dev_kfree_skb_any(skb); |
1213 | break; | |
1214 | } | |
1215 | ||
1216 | return 0; | |
1217 | } | |
1218 | ||
1219 | /* | |
1220 | * This function transfers received packets from card to driver, performing | |
1221 | * aggregation if required. | |
1222 | * | |
1223 | * For data received on control port, or if aggregation is disabled, the | |
1224 | * received buffers are uploaded as separate packets. However, if aggregation | |
1225 | * is enabled and required, the buffers are copied onto an aggregation buffer, | |
1226 | * provided there is space left, processed and finally uploaded. | |
1227 | */ | |
1228 | static int mwifiex_sdio_card_to_host_mp_aggr(struct mwifiex_adapter *adapter, | |
960d6d08 | 1229 | u16 rx_len, u8 port) |
5e6e3a92 BZ |
1230 | { |
1231 | struct sdio_mmc_card *card = adapter->card; | |
1232 | s32 f_do_rx_aggr = 0; | |
1233 | s32 f_do_rx_cur = 0; | |
1234 | s32 f_aggr_cur = 0; | |
2c11ab90 | 1235 | s32 f_post_aggr_cur = 0; |
5e6e3a92 | 1236 | struct sk_buff *skb_deaggr; |
960d6d08 ZL |
1237 | struct sk_buff *skb = NULL; |
1238 | u32 pkt_len, pkt_type, mport, pind; | |
5e6e3a92 | 1239 | u8 *curr_ptr; |
5e6e3a92 | 1240 | |
b60186f8 | 1241 | if ((card->has_control_mask) && (port == CTRL_PORT)) { |
5e6e3a92 | 1242 | /* Read the command Resp without aggr */ |
acebe8c1 ZL |
1243 | mwifiex_dbg(adapter, CMD, |
1244 | "info: %s: no aggregation for cmd\t" | |
1245 | "response\n", __func__); | |
5e6e3a92 BZ |
1246 | |
1247 | f_do_rx_cur = 1; | |
1248 | goto rx_curr_single; | |
1249 | } | |
1250 | ||
1251 | if (!card->mpa_rx.enabled) { | |
acebe8c1 ZL |
1252 | mwifiex_dbg(adapter, WARN, |
1253 | "info: %s: rx aggregation disabled\n", | |
1254 | __func__); | |
5e6e3a92 BZ |
1255 | |
1256 | f_do_rx_cur = 1; | |
1257 | goto rx_curr_single; | |
1258 | } | |
1259 | ||
b60186f8 YAP |
1260 | if ((!card->has_control_mask && (card->mp_rd_bitmap & |
1261 | card->reg->data_port_mask)) || | |
1262 | (card->has_control_mask && (card->mp_rd_bitmap & | |
1263 | (~((u32) CTRL_PORT_MASK))))) { | |
5e6e3a92 | 1264 | /* Some more data RX pending */ |
acebe8c1 ZL |
1265 | mwifiex_dbg(adapter, INFO, |
1266 | "info: %s: not last packet\n", __func__); | |
5e6e3a92 BZ |
1267 | |
1268 | if (MP_RX_AGGR_IN_PROGRESS(card)) { | |
960d6d08 | 1269 | if (MP_RX_AGGR_BUF_HAS_ROOM(card, rx_len)) { |
5e6e3a92 BZ |
1270 | f_aggr_cur = 1; |
1271 | } else { | |
1272 | /* No room in Aggr buf, do rx aggr now */ | |
1273 | f_do_rx_aggr = 1; | |
2c11ab90 | 1274 | f_post_aggr_cur = 1; |
5e6e3a92 BZ |
1275 | } |
1276 | } else { | |
1277 | /* Rx aggr not in progress */ | |
1278 | f_aggr_cur = 1; | |
1279 | } | |
1280 | ||
1281 | } else { | |
1282 | /* No more data RX pending */ | |
acebe8c1 ZL |
1283 | mwifiex_dbg(adapter, INFO, |
1284 | "info: %s: last packet\n", __func__); | |
5e6e3a92 BZ |
1285 | |
1286 | if (MP_RX_AGGR_IN_PROGRESS(card)) { | |
1287 | f_do_rx_aggr = 1; | |
960d6d08 | 1288 | if (MP_RX_AGGR_BUF_HAS_ROOM(card, rx_len)) |
5e6e3a92 BZ |
1289 | f_aggr_cur = 1; |
1290 | else | |
1291 | /* No room in Aggr buf, do rx aggr now */ | |
1292 | f_do_rx_cur = 1; | |
1293 | } else { | |
1294 | f_do_rx_cur = 1; | |
1295 | } | |
1296 | } | |
1297 | ||
1298 | if (f_aggr_cur) { | |
acebe8c1 ZL |
1299 | mwifiex_dbg(adapter, INFO, |
1300 | "info: current packet aggregation\n"); | |
5e6e3a92 | 1301 | /* Curr pkt can be aggregated */ |
960d6d08 | 1302 | mp_rx_aggr_setup(card, rx_len, port); |
5e6e3a92 BZ |
1303 | |
1304 | if (MP_RX_AGGR_PKT_LIMIT_REACHED(card) || | |
c23b7c8f | 1305 | mp_rx_aggr_port_limit_reached(card)) { |
acebe8c1 ZL |
1306 | mwifiex_dbg(adapter, INFO, |
1307 | "info: %s: aggregated packet\t" | |
1308 | "limit reached\n", __func__); | |
5e6e3a92 BZ |
1309 | /* No more pkts allowed in Aggr buf, rx it */ |
1310 | f_do_rx_aggr = 1; | |
1311 | } | |
1312 | } | |
1313 | ||
1314 | if (f_do_rx_aggr) { | |
1315 | /* do aggr RX now */ | |
acebe8c1 ZL |
1316 | mwifiex_dbg(adapter, DATA, |
1317 | "info: do_rx_aggr: num of packets: %d\n", | |
1318 | card->mpa_rx.pkt_cnt); | |
5e6e3a92 | 1319 | |
b60186f8 YAP |
1320 | if (card->supports_sdio_new_mode) { |
1321 | int i; | |
1322 | u32 port_count; | |
1323 | ||
1324 | for (i = 0, port_count = 0; i < card->max_ports; i++) | |
1325 | if (card->mpa_rx.ports & BIT(i)) | |
1326 | port_count++; | |
1327 | ||
1328 | /* Reading data from "start_port + 0" to "start_port + | |
1329 | * port_count -1", so decrease the count by 1 | |
1330 | */ | |
1331 | port_count--; | |
1332 | mport = (adapter->ioport | SDIO_MPA_ADDR_BASE | | |
1333 | (port_count << 8)) + card->mpa_rx.start_port; | |
1334 | } else { | |
1335 | mport = (adapter->ioport | SDIO_MPA_ADDR_BASE | | |
1336 | (card->mpa_rx.ports << 4)) + | |
1337 | card->mpa_rx.start_port; | |
1338 | } | |
0fc0d43b | 1339 | |
5e6e3a92 | 1340 | if (mwifiex_read_data_sync(adapter, card->mpa_rx.buf, |
0fc0d43b | 1341 | card->mpa_rx.buf_len, mport, 1)) |
17a60b48 | 1342 | goto error; |
5e6e3a92 BZ |
1343 | |
1344 | curr_ptr = card->mpa_rx.buf; | |
1345 | ||
1346 | for (pind = 0; pind < card->mpa_rx.pkt_cnt; pind++) { | |
960d6d08 | 1347 | u32 *len_arr = card->mpa_rx.len_arr; |
5e6e3a92 BZ |
1348 | |
1349 | /* get curr PKT len & type */ | |
cfcd926e TW |
1350 | pkt_len = le16_to_cpu(*(__le16 *) &curr_ptr[0]); |
1351 | pkt_type = le16_to_cpu(*(__le16 *) &curr_ptr[2]); | |
5e6e3a92 BZ |
1352 | |
1353 | /* copy pkt to deaggr buf */ | |
960d6d08 ZL |
1354 | skb_deaggr = mwifiex_alloc_dma_align_buf(len_arr[pind], |
1355 | GFP_KERNEL | | |
1356 | GFP_DMA); | |
4acaf048 | 1357 | if (!skb_deaggr) { |
acebe8c1 ZL |
1358 | mwifiex_dbg(adapter, ERROR, "skb allocation failure\t" |
1359 | "drop pkt len=%d type=%d\n", | |
1360 | pkt_len, pkt_type); | |
4acaf048 ZL |
1361 | curr_ptr += len_arr[pind]; |
1362 | continue; | |
1363 | } | |
1364 | ||
960d6d08 | 1365 | skb_put(skb_deaggr, len_arr[pind]); |
5e6e3a92 | 1366 | |
92263a84 ZL |
1367 | if ((pkt_type == MWIFIEX_TYPE_DATA || |
1368 | (pkt_type == MWIFIEX_TYPE_AGGR_DATA && | |
1369 | adapter->sdio_rx_aggr_enable)) && | |
960d6d08 | 1370 | (pkt_len <= len_arr[pind])) { |
5e6e3a92 BZ |
1371 | |
1372 | memcpy(skb_deaggr->data, curr_ptr, pkt_len); | |
1373 | ||
1374 | skb_trim(skb_deaggr, pkt_len); | |
1375 | ||
1376 | /* Process de-aggr packet */ | |
1377 | mwifiex_decode_rx_packet(adapter, skb_deaggr, | |
1378 | pkt_type); | |
1379 | } else { | |
acebe8c1 ZL |
1380 | mwifiex_dbg(adapter, ERROR, |
1381 | "drop wrong aggr pkt:\t" | |
1382 | "sdio_single_port_rx_aggr=%d\t" | |
1383 | "type=%d len=%d max_len=%d\n", | |
1384 | adapter->sdio_rx_aggr_enable, | |
1385 | pkt_type, pkt_len, len_arr[pind]); | |
5e6e3a92 BZ |
1386 | dev_kfree_skb_any(skb_deaggr); |
1387 | } | |
960d6d08 | 1388 | curr_ptr += len_arr[pind]; |
5e6e3a92 BZ |
1389 | } |
1390 | MP_RX_AGGR_BUF_RESET(card); | |
1391 | } | |
1392 | ||
1393 | rx_curr_single: | |
1394 | if (f_do_rx_cur) { | |
acebe8c1 ZL |
1395 | mwifiex_dbg(adapter, INFO, "info: RX: port: %d, rx_len: %d\n", |
1396 | port, rx_len); | |
4acaf048 | 1397 | |
960d6d08 | 1398 | skb = mwifiex_alloc_dma_align_buf(rx_len, GFP_KERNEL | GFP_DMA); |
4acaf048 | 1399 | if (!skb) { |
acebe8c1 ZL |
1400 | mwifiex_dbg(adapter, ERROR, |
1401 | "single skb allocated fail,\t" | |
1402 | "drop pkt port=%d len=%d\n", port, rx_len); | |
4acaf048 ZL |
1403 | if (mwifiex_sdio_card_to_host(adapter, &pkt_type, |
1404 | card->mpa_rx.buf, rx_len, | |
1405 | adapter->ioport + port)) | |
1406 | goto error; | |
1407 | return 0; | |
1408 | } | |
1409 | ||
960d6d08 | 1410 | skb_put(skb, rx_len); |
5e6e3a92 BZ |
1411 | |
1412 | if (mwifiex_sdio_card_to_host(adapter, &pkt_type, | |
1413 | skb->data, skb->len, | |
1414 | adapter->ioport + port)) | |
17a60b48 | 1415 | goto error; |
92263a84 ZL |
1416 | if (!adapter->sdio_rx_aggr_enable && |
1417 | pkt_type == MWIFIEX_TYPE_AGGR_DATA) { | |
acebe8c1 ZL |
1418 | mwifiex_dbg(adapter, ERROR, "drop wrong pkt type %d\t" |
1419 | "current SDIO RX Aggr not enabled\n", | |
1420 | pkt_type); | |
4acaf048 ZL |
1421 | dev_kfree_skb_any(skb); |
1422 | return 0; | |
92263a84 | 1423 | } |
5e6e3a92 BZ |
1424 | |
1425 | mwifiex_decode_rx_packet(adapter, skb, pkt_type); | |
1426 | } | |
2c11ab90 | 1427 | if (f_post_aggr_cur) { |
acebe8c1 ZL |
1428 | mwifiex_dbg(adapter, INFO, |
1429 | "info: current packet aggregation\n"); | |
2c11ab90 | 1430 | /* Curr pkt can be aggregated */ |
080465f2 | 1431 | mp_rx_aggr_setup(card, rx_len, port); |
2c11ab90 | 1432 | } |
5e6e3a92 BZ |
1433 | |
1434 | return 0; | |
17a60b48 | 1435 | error: |
4acaf048 | 1436 | if (MP_RX_AGGR_IN_PROGRESS(card)) |
17a60b48 | 1437 | MP_RX_AGGR_BUF_RESET(card); |
17a60b48 | 1438 | |
960d6d08 | 1439 | if (f_do_rx_cur && skb) |
17a60b48 AP |
1440 | /* Single transfer pending. Free curr buff also */ |
1441 | dev_kfree_skb_any(skb); | |
1442 | ||
1443 | return -1; | |
5e6e3a92 BZ |
1444 | } |
1445 | ||
1446 | /* | |
1447 | * This function checks the current interrupt status. | |
1448 | * | |
1449 | * The following interrupts are checked and handled by this function - | |
1450 | * - Data sent | |
1451 | * - Command sent | |
1452 | * - Packets received | |
1453 | * | |
1454 | * Since the firmware does not generate download ready interrupt if the | |
1455 | * port updated is command port only, command sent interrupt checking | |
1456 | * should be done manually, and for every SDIO interrupt. | |
1457 | * | |
1458 | * In case of Rx packets received, the packets are uploaded from card to | |
1459 | * host and processed accordingly. | |
1460 | */ | |
1461 | static int mwifiex_process_int_status(struct mwifiex_adapter *adapter) | |
1462 | { | |
1463 | struct sdio_mmc_card *card = adapter->card; | |
05889f82 | 1464 | const struct mwifiex_sdio_card_reg *reg = card->reg; |
5e6e3a92 BZ |
1465 | int ret = 0; |
1466 | u8 sdio_ireg; | |
270e58e8 | 1467 | struct sk_buff *skb; |
5e6e3a92 BZ |
1468 | u8 port = CTRL_PORT; |
1469 | u32 len_reg_l, len_reg_u; | |
1470 | u32 rx_blocks; | |
1471 | u16 rx_len; | |
1472 | unsigned long flags; | |
b60186f8 YAP |
1473 | u32 bitmap; |
1474 | u8 cr; | |
5e6e3a92 BZ |
1475 | |
1476 | spin_lock_irqsave(&adapter->int_lock, flags); | |
1477 | sdio_ireg = adapter->int_status; | |
1478 | adapter->int_status = 0; | |
1479 | spin_unlock_irqrestore(&adapter->int_lock, flags); | |
1480 | ||
1481 | if (!sdio_ireg) | |
1482 | return ret; | |
1483 | ||
b60186f8 YAP |
1484 | /* Following interrupt is only for SDIO new mode */ |
1485 | if (sdio_ireg & DN_LD_CMD_PORT_HOST_INT_STATUS && adapter->cmd_sent) | |
1486 | adapter->cmd_sent = false; | |
1487 | ||
1488 | /* Following interrupt is only for SDIO new mode */ | |
1489 | if (sdio_ireg & UP_LD_CMD_PORT_HOST_INT_STATUS) { | |
1490 | u32 pkt_type; | |
1491 | ||
1492 | /* read the len of control packet */ | |
554a0113 AP |
1493 | rx_len = card->mp_regs[reg->cmd_rd_len_1] << 8; |
1494 | rx_len |= (u16)card->mp_regs[reg->cmd_rd_len_0]; | |
b60186f8 YAP |
1495 | rx_blocks = DIV_ROUND_UP(rx_len, MWIFIEX_SDIO_BLOCK_SIZE); |
1496 | if (rx_len <= INTF_HEADER_LEN || | |
1497 | (rx_blocks * MWIFIEX_SDIO_BLOCK_SIZE) > | |
1498 | MWIFIEX_RX_DATA_BUF_SIZE) | |
1499 | return -1; | |
1500 | rx_len = (u16) (rx_blocks * MWIFIEX_SDIO_BLOCK_SIZE); | |
acebe8c1 | 1501 | mwifiex_dbg(adapter, INFO, "info: rx_len = %d\n", rx_len); |
b60186f8 | 1502 | |
62159944 | 1503 | skb = mwifiex_alloc_dma_align_buf(rx_len, GFP_KERNEL | GFP_DMA); |
b60186f8 YAP |
1504 | if (!skb) |
1505 | return -1; | |
1506 | ||
1507 | skb_put(skb, rx_len); | |
1508 | ||
1509 | if (mwifiex_sdio_card_to_host(adapter, &pkt_type, skb->data, | |
1510 | skb->len, adapter->ioport | | |
1511 | CMD_PORT_SLCT)) { | |
acebe8c1 ZL |
1512 | mwifiex_dbg(adapter, ERROR, |
1513 | "%s: failed to card_to_host", __func__); | |
b60186f8 YAP |
1514 | dev_kfree_skb_any(skb); |
1515 | goto term_cmd; | |
1516 | } | |
1517 | ||
1518 | if ((pkt_type != MWIFIEX_TYPE_CMD) && | |
1519 | (pkt_type != MWIFIEX_TYPE_EVENT)) | |
acebe8c1 ZL |
1520 | mwifiex_dbg(adapter, ERROR, |
1521 | "%s:Received wrong packet on cmd port", | |
1522 | __func__); | |
b60186f8 YAP |
1523 | |
1524 | mwifiex_decode_rx_packet(adapter, skb, pkt_type); | |
1525 | } | |
1526 | ||
5e6e3a92 | 1527 | if (sdio_ireg & DN_LD_HOST_INT_STATUS) { |
b60186f8 YAP |
1528 | bitmap = (u32) card->mp_regs[reg->wr_bitmap_l]; |
1529 | bitmap |= ((u32) card->mp_regs[reg->wr_bitmap_u]) << 8; | |
1530 | if (card->supports_sdio_new_mode) { | |
1531 | bitmap |= | |
1532 | ((u32) card->mp_regs[reg->wr_bitmap_1l]) << 16; | |
1533 | bitmap |= | |
1534 | ((u32) card->mp_regs[reg->wr_bitmap_1u]) << 24; | |
1535 | } | |
1536 | card->mp_wr_bitmap = bitmap; | |
1537 | ||
acebe8c1 ZL |
1538 | mwifiex_dbg(adapter, INTR, |
1539 | "int: DNLD: wr_bitmap=0x%x\n", | |
1540 | card->mp_wr_bitmap); | |
5e6e3a92 BZ |
1541 | if (adapter->data_sent && |
1542 | (card->mp_wr_bitmap & card->mp_data_port_mask)) { | |
acebe8c1 ZL |
1543 | mwifiex_dbg(adapter, INTR, |
1544 | "info: <--- Tx DONE Interrupt --->\n"); | |
5e6e3a92 BZ |
1545 | adapter->data_sent = false; |
1546 | } | |
1547 | } | |
1548 | ||
1549 | /* As firmware will not generate download ready interrupt if the port | |
1550 | updated is command port only, cmd_sent should be done for any SDIO | |
1551 | interrupt. */ | |
b60186f8 | 1552 | if (card->has_control_mask && adapter->cmd_sent) { |
5e6e3a92 BZ |
1553 | /* Check if firmware has attach buffer at command port and |
1554 | update just that in wr_bit_map. */ | |
1555 | card->mp_wr_bitmap |= | |
05889f82 | 1556 | (u32) card->mp_regs[reg->wr_bitmap_l] & CTRL_PORT_MASK; |
5e6e3a92 BZ |
1557 | if (card->mp_wr_bitmap & CTRL_PORT_MASK) |
1558 | adapter->cmd_sent = false; | |
1559 | } | |
1560 | ||
acebe8c1 ZL |
1561 | mwifiex_dbg(adapter, INTR, "info: cmd_sent=%d data_sent=%d\n", |
1562 | adapter->cmd_sent, adapter->data_sent); | |
5e6e3a92 | 1563 | if (sdio_ireg & UP_LD_HOST_INT_STATUS) { |
b60186f8 YAP |
1564 | bitmap = (u32) card->mp_regs[reg->rd_bitmap_l]; |
1565 | bitmap |= ((u32) card->mp_regs[reg->rd_bitmap_u]) << 8; | |
1566 | if (card->supports_sdio_new_mode) { | |
1567 | bitmap |= | |
1568 | ((u32) card->mp_regs[reg->rd_bitmap_1l]) << 16; | |
1569 | bitmap |= | |
1570 | ((u32) card->mp_regs[reg->rd_bitmap_1u]) << 24; | |
1571 | } | |
1572 | card->mp_rd_bitmap = bitmap; | |
acebe8c1 ZL |
1573 | mwifiex_dbg(adapter, INTR, |
1574 | "int: UPLD: rd_bitmap=0x%x\n", | |
1575 | card->mp_rd_bitmap); | |
5e6e3a92 BZ |
1576 | |
1577 | while (true) { | |
1578 | ret = mwifiex_get_rd_port(adapter, &port); | |
1579 | if (ret) { | |
acebe8c1 ZL |
1580 | mwifiex_dbg(adapter, INFO, |
1581 | "info: no more rd_port available\n"); | |
5e6e3a92 BZ |
1582 | break; |
1583 | } | |
05889f82 AK |
1584 | len_reg_l = reg->rd_len_p0_l + (port << 1); |
1585 | len_reg_u = reg->rd_len_p0_u + (port << 1); | |
5e6e3a92 BZ |
1586 | rx_len = ((u16) card->mp_regs[len_reg_u]) << 8; |
1587 | rx_len |= (u16) card->mp_regs[len_reg_l]; | |
acebe8c1 ZL |
1588 | mwifiex_dbg(adapter, INFO, |
1589 | "info: RX: port=%d rx_len=%u\n", | |
1590 | port, rx_len); | |
5e6e3a92 BZ |
1591 | rx_blocks = |
1592 | (rx_len + MWIFIEX_SDIO_BLOCK_SIZE - | |
1593 | 1) / MWIFIEX_SDIO_BLOCK_SIZE; | |
5dbd326c YAP |
1594 | if (rx_len <= INTF_HEADER_LEN || |
1595 | (rx_blocks * MWIFIEX_SDIO_BLOCK_SIZE) > | |
92263a84 | 1596 | card->mpa_rx.buf_size) { |
acebe8c1 ZL |
1597 | mwifiex_dbg(adapter, ERROR, |
1598 | "invalid rx_len=%d\n", | |
1599 | rx_len); | |
5e6e3a92 BZ |
1600 | return -1; |
1601 | } | |
5e6e3a92 | 1602 | |
960d6d08 | 1603 | rx_len = (u16) (rx_blocks * MWIFIEX_SDIO_BLOCK_SIZE); |
acebe8c1 ZL |
1604 | mwifiex_dbg(adapter, INFO, "info: rx_len = %d\n", |
1605 | rx_len); | |
5e6e3a92 | 1606 | |
960d6d08 | 1607 | if (mwifiex_sdio_card_to_host_mp_aggr(adapter, rx_len, |
5e6e3a92 | 1608 | port)) { |
acebe8c1 ZL |
1609 | mwifiex_dbg(adapter, ERROR, |
1610 | "card_to_host_mpa failed: int status=%#x\n", | |
1611 | sdio_ireg); | |
b60186f8 | 1612 | goto term_cmd; |
5e6e3a92 BZ |
1613 | } |
1614 | } | |
1615 | } | |
1616 | ||
1617 | return 0; | |
b60186f8 YAP |
1618 | |
1619 | term_cmd: | |
1620 | /* terminate cmd */ | |
1621 | if (mwifiex_read_reg(adapter, CONFIGURATION_REG, &cr)) | |
acebe8c1 | 1622 | mwifiex_dbg(adapter, ERROR, "read CFG reg failed\n"); |
b60186f8 | 1623 | else |
acebe8c1 ZL |
1624 | mwifiex_dbg(adapter, INFO, |
1625 | "info: CFG reg val = %d\n", cr); | |
b60186f8 YAP |
1626 | |
1627 | if (mwifiex_write_reg(adapter, CONFIGURATION_REG, (cr | 0x04))) | |
acebe8c1 ZL |
1628 | mwifiex_dbg(adapter, ERROR, |
1629 | "write CFG reg failed\n"); | |
b60186f8 | 1630 | else |
acebe8c1 | 1631 | mwifiex_dbg(adapter, INFO, "info: write success\n"); |
b60186f8 YAP |
1632 | |
1633 | if (mwifiex_read_reg(adapter, CONFIGURATION_REG, &cr)) | |
acebe8c1 ZL |
1634 | mwifiex_dbg(adapter, ERROR, |
1635 | "read CFG reg failed\n"); | |
b60186f8 | 1636 | else |
acebe8c1 ZL |
1637 | mwifiex_dbg(adapter, INFO, |
1638 | "info: CFG reg val =%x\n", cr); | |
b60186f8 YAP |
1639 | |
1640 | return -1; | |
5e6e3a92 BZ |
1641 | } |
1642 | ||
1643 | /* | |
1644 | * This function aggregates transmission buffers in driver and downloads | |
1645 | * the aggregated packet to card. | |
1646 | * | |
1647 | * The individual packets are aggregated by copying into an aggregation | |
1648 | * buffer and then downloaded to the card. Previous unsent packets in the | |
1649 | * aggregation buffer are pre-copied first before new packets are added. | |
1650 | * Aggregation is done till there is space left in the aggregation buffer, | |
1651 | * or till new packets are available. | |
1652 | * | |
1653 | * The function will only download the packet to the card when aggregation | |
1654 | * stops, otherwise it will just aggregate the packet in aggregation buffer | |
1655 | * and return. | |
1656 | */ | |
1657 | static int mwifiex_host_to_card_mp_aggr(struct mwifiex_adapter *adapter, | |
0fc0d43b | 1658 | u8 *payload, u32 pkt_len, u32 port, |
5e6e3a92 BZ |
1659 | u32 next_pkt_len) |
1660 | { | |
1661 | struct sdio_mmc_card *card = adapter->card; | |
1662 | int ret = 0; | |
1663 | s32 f_send_aggr_buf = 0; | |
1664 | s32 f_send_cur_buf = 0; | |
1665 | s32 f_precopy_cur_buf = 0; | |
1666 | s32 f_postcopy_cur_buf = 0; | |
0fc0d43b | 1667 | u32 mport; |
5e6e3a92 | 1668 | |
b60186f8 YAP |
1669 | if (!card->mpa_tx.enabled || |
1670 | (card->has_control_mask && (port == CTRL_PORT)) || | |
1671 | (card->supports_sdio_new_mode && (port == CMD_PORT_SLCT))) { | |
acebe8c1 ZL |
1672 | mwifiex_dbg(adapter, WARN, |
1673 | "info: %s: tx aggregation disabled\n", | |
1674 | __func__); | |
5e6e3a92 BZ |
1675 | |
1676 | f_send_cur_buf = 1; | |
1677 | goto tx_curr_single; | |
1678 | } | |
1679 | ||
1680 | if (next_pkt_len) { | |
1681 | /* More pkt in TX queue */ | |
acebe8c1 ZL |
1682 | mwifiex_dbg(adapter, INFO, |
1683 | "info: %s: more packets in queue.\n", | |
1684 | __func__); | |
5e6e3a92 BZ |
1685 | |
1686 | if (MP_TX_AGGR_IN_PROGRESS(card)) { | |
c7346c32 | 1687 | if (MP_TX_AGGR_BUF_HAS_ROOM(card, pkt_len)) { |
5e6e3a92 BZ |
1688 | f_precopy_cur_buf = 1; |
1689 | ||
1690 | if (!(card->mp_wr_bitmap & | |
5dbd326c YAP |
1691 | (1 << card->curr_wr_port)) || |
1692 | !MP_TX_AGGR_BUF_HAS_ROOM( | |
1693 | card, pkt_len + next_pkt_len)) | |
5e6e3a92 BZ |
1694 | f_send_aggr_buf = 1; |
1695 | } else { | |
1696 | /* No room in Aggr buf, send it */ | |
1697 | f_send_aggr_buf = 1; | |
1698 | ||
c7346c32 | 1699 | if (!(card->mp_wr_bitmap & |
5e6e3a92 BZ |
1700 | (1 << card->curr_wr_port))) |
1701 | f_send_cur_buf = 1; | |
1702 | else | |
1703 | f_postcopy_cur_buf = 1; | |
1704 | } | |
1705 | } else { | |
5dbd326c YAP |
1706 | if (MP_TX_AGGR_BUF_HAS_ROOM(card, pkt_len) && |
1707 | (card->mp_wr_bitmap & (1 << card->curr_wr_port))) | |
5e6e3a92 BZ |
1708 | f_precopy_cur_buf = 1; |
1709 | else | |
1710 | f_send_cur_buf = 1; | |
1711 | } | |
1712 | } else { | |
1713 | /* Last pkt in TX queue */ | |
acebe8c1 ZL |
1714 | mwifiex_dbg(adapter, INFO, |
1715 | "info: %s: Last packet in Tx Queue.\n", | |
1716 | __func__); | |
5e6e3a92 BZ |
1717 | |
1718 | if (MP_TX_AGGR_IN_PROGRESS(card)) { | |
1719 | /* some packs in Aggr buf already */ | |
1720 | f_send_aggr_buf = 1; | |
1721 | ||
1722 | if (MP_TX_AGGR_BUF_HAS_ROOM(card, pkt_len)) | |
1723 | f_precopy_cur_buf = 1; | |
1724 | else | |
1725 | /* No room in Aggr buf, send it */ | |
1726 | f_send_cur_buf = 1; | |
1727 | } else { | |
1728 | f_send_cur_buf = 1; | |
1729 | } | |
1730 | } | |
1731 | ||
1732 | if (f_precopy_cur_buf) { | |
acebe8c1 ZL |
1733 | mwifiex_dbg(adapter, DATA, |
1734 | "data: %s: precopy current buffer\n", | |
1735 | __func__); | |
5e6e3a92 BZ |
1736 | MP_TX_AGGR_BUF_PUT(card, payload, pkt_len, port); |
1737 | ||
1738 | if (MP_TX_AGGR_PKT_LIMIT_REACHED(card) || | |
c23b7c8f | 1739 | mp_tx_aggr_port_limit_reached(card)) |
5e6e3a92 BZ |
1740 | /* No more pkts allowed in Aggr buf, send it */ |
1741 | f_send_aggr_buf = 1; | |
1742 | } | |
1743 | ||
1744 | if (f_send_aggr_buf) { | |
acebe8c1 ZL |
1745 | mwifiex_dbg(adapter, DATA, |
1746 | "data: %s: send aggr buffer: %d %d\n", | |
1747 | __func__, card->mpa_tx.start_port, | |
1748 | card->mpa_tx.ports); | |
b60186f8 YAP |
1749 | if (card->supports_sdio_new_mode) { |
1750 | u32 port_count; | |
1751 | int i; | |
1752 | ||
1753 | for (i = 0, port_count = 0; i < card->max_ports; i++) | |
1754 | if (card->mpa_tx.ports & BIT(i)) | |
1755 | port_count++; | |
1756 | ||
1757 | /* Writing data from "start_port + 0" to "start_port + | |
1758 | * port_count -1", so decrease the count by 1 | |
1759 | */ | |
1760 | port_count--; | |
1761 | mport = (adapter->ioport | SDIO_MPA_ADDR_BASE | | |
1762 | (port_count << 8)) + card->mpa_tx.start_port; | |
1763 | } else { | |
1764 | mport = (adapter->ioport | SDIO_MPA_ADDR_BASE | | |
1765 | (card->mpa_tx.ports << 4)) + | |
1766 | card->mpa_tx.start_port; | |
1767 | } | |
1768 | ||
5e6e3a92 | 1769 | ret = mwifiex_write_data_to_card(adapter, card->mpa_tx.buf, |
0fc0d43b | 1770 | card->mpa_tx.buf_len, mport); |
5e6e3a92 BZ |
1771 | |
1772 | MP_TX_AGGR_BUF_RESET(card); | |
1773 | } | |
1774 | ||
1775 | tx_curr_single: | |
1776 | if (f_send_cur_buf) { | |
acebe8c1 ZL |
1777 | mwifiex_dbg(adapter, DATA, |
1778 | "data: %s: send current buffer %d\n", | |
1779 | __func__, port); | |
5e6e3a92 BZ |
1780 | ret = mwifiex_write_data_to_card(adapter, payload, pkt_len, |
1781 | adapter->ioport + port); | |
1782 | } | |
1783 | ||
1784 | if (f_postcopy_cur_buf) { | |
acebe8c1 ZL |
1785 | mwifiex_dbg(adapter, DATA, |
1786 | "data: %s: postcopy current buffer\n", | |
1787 | __func__); | |
5e6e3a92 BZ |
1788 | MP_TX_AGGR_BUF_PUT(card, payload, pkt_len, port); |
1789 | } | |
1790 | ||
1791 | return ret; | |
1792 | } | |
1793 | ||
1794 | /* | |
1795 | * This function downloads data from driver to card. | |
1796 | * | |
1797 | * Both commands and data packets are transferred to the card by this | |
1798 | * function. | |
1799 | * | |
1800 | * This function adds the SDIO specific header to the front of the buffer | |
1801 | * before transferring. The header contains the length of the packet and | |
1802 | * the type. The firmware handles the packets based upon this set type. | |
1803 | */ | |
1804 | static int mwifiex_sdio_host_to_card(struct mwifiex_adapter *adapter, | |
d930faee | 1805 | u8 type, struct sk_buff *skb, |
5e6e3a92 BZ |
1806 | struct mwifiex_tx_param *tx_param) |
1807 | { | |
1808 | struct sdio_mmc_card *card = adapter->card; | |
270e58e8 | 1809 | int ret; |
5e6e3a92 BZ |
1810 | u32 buf_block_len; |
1811 | u32 blk_size; | |
0fc0d43b | 1812 | u32 port = CTRL_PORT; |
d930faee AK |
1813 | u8 *payload = (u8 *)skb->data; |
1814 | u32 pkt_len = skb->len; | |
5e6e3a92 BZ |
1815 | |
1816 | /* Allocate buffer and copy payload */ | |
1817 | blk_size = MWIFIEX_SDIO_BLOCK_SIZE; | |
1818 | buf_block_len = (pkt_len + blk_size - 1) / blk_size; | |
83e612f6 TM |
1819 | *(__le16 *)&payload[0] = cpu_to_le16((u16)pkt_len); |
1820 | *(__le16 *)&payload[2] = cpu_to_le16(type); | |
5e6e3a92 BZ |
1821 | |
1822 | /* | |
1823 | * This is SDIO specific header | |
1824 | * u16 length, | |
1825 | * u16 type (MWIFIEX_TYPE_DATA = 0, MWIFIEX_TYPE_CMD = 1, | |
1826 | * MWIFIEX_TYPE_EVENT = 3) | |
1827 | */ | |
1828 | if (type == MWIFIEX_TYPE_DATA) { | |
1829 | ret = mwifiex_get_wr_port_data(adapter, &port); | |
1830 | if (ret) { | |
acebe8c1 ZL |
1831 | mwifiex_dbg(adapter, ERROR, |
1832 | "%s: no wr_port available\n", | |
1833 | __func__); | |
5e6e3a92 BZ |
1834 | return ret; |
1835 | } | |
1836 | } else { | |
1837 | adapter->cmd_sent = true; | |
1838 | /* Type must be MWIFIEX_TYPE_CMD */ | |
1839 | ||
1840 | if (pkt_len <= INTF_HEADER_LEN || | |
1841 | pkt_len > MWIFIEX_UPLD_SIZE) | |
acebe8c1 ZL |
1842 | mwifiex_dbg(adapter, ERROR, |
1843 | "%s: payload=%p, nb=%d\n", | |
1844 | __func__, payload, pkt_len); | |
b60186f8 YAP |
1845 | |
1846 | if (card->supports_sdio_new_mode) | |
1847 | port = CMD_PORT_SLCT; | |
5e6e3a92 BZ |
1848 | } |
1849 | ||
1850 | /* Transfer data to card */ | |
1851 | pkt_len = buf_block_len * blk_size; | |
1852 | ||
1853 | if (tx_param) | |
1854 | ret = mwifiex_host_to_card_mp_aggr(adapter, payload, pkt_len, | |
5dbd326c YAP |
1855 | port, tx_param->next_pkt_len |
1856 | ); | |
5e6e3a92 BZ |
1857 | else |
1858 | ret = mwifiex_host_to_card_mp_aggr(adapter, payload, pkt_len, | |
5dbd326c | 1859 | port, 0); |
5e6e3a92 BZ |
1860 | |
1861 | if (ret) { | |
1862 | if (type == MWIFIEX_TYPE_CMD) | |
1863 | adapter->cmd_sent = false; | |
bb71d01a | 1864 | if (type == MWIFIEX_TYPE_DATA) { |
5e6e3a92 | 1865 | adapter->data_sent = false; |
bb71d01a AP |
1866 | /* restore curr_wr_port in error cases */ |
1867 | card->curr_wr_port = port; | |
1868 | card->mp_wr_bitmap |= (u32)(1 << card->curr_wr_port); | |
1869 | } | |
5e6e3a92 BZ |
1870 | } else { |
1871 | if (type == MWIFIEX_TYPE_DATA) { | |
1872 | if (!(card->mp_wr_bitmap & (1 << card->curr_wr_port))) | |
1873 | adapter->data_sent = true; | |
1874 | else | |
1875 | adapter->data_sent = false; | |
1876 | } | |
1877 | } | |
1878 | ||
1879 | return ret; | |
1880 | } | |
1881 | ||
1882 | /* | |
1883 | * This function allocates the MPA Tx and Rx buffers. | |
1884 | */ | |
1885 | static int mwifiex_alloc_sdio_mpa_buffers(struct mwifiex_adapter *adapter, | |
1886 | u32 mpa_tx_buf_size, u32 mpa_rx_buf_size) | |
1887 | { | |
1888 | struct sdio_mmc_card *card = adapter->card; | |
92263a84 | 1889 | u32 rx_buf_size; |
5e6e3a92 BZ |
1890 | int ret = 0; |
1891 | ||
1892 | card->mpa_tx.buf = kzalloc(mpa_tx_buf_size, GFP_KERNEL); | |
1893 | if (!card->mpa_tx.buf) { | |
5e6e3a92 BZ |
1894 | ret = -1; |
1895 | goto error; | |
1896 | } | |
1897 | ||
1898 | card->mpa_tx.buf_size = mpa_tx_buf_size; | |
1899 | ||
92263a84 ZL |
1900 | rx_buf_size = max_t(u32, mpa_rx_buf_size, |
1901 | (u32)SDIO_MAX_AGGR_BUF_SIZE); | |
1902 | card->mpa_rx.buf = kzalloc(rx_buf_size, GFP_KERNEL); | |
5e6e3a92 | 1903 | if (!card->mpa_rx.buf) { |
5e6e3a92 BZ |
1904 | ret = -1; |
1905 | goto error; | |
1906 | } | |
1907 | ||
92263a84 | 1908 | card->mpa_rx.buf_size = rx_buf_size; |
5e6e3a92 BZ |
1909 | |
1910 | error: | |
1911 | if (ret) { | |
1912 | kfree(card->mpa_tx.buf); | |
1913 | kfree(card->mpa_rx.buf); | |
1914 | } | |
1915 | ||
1916 | return ret; | |
1917 | } | |
1918 | ||
1919 | /* | |
1920 | * This function unregisters the SDIO device. | |
1921 | * | |
1922 | * The SDIO IRQ is released, the function is disabled and driver | |
1923 | * data is set to null. | |
1924 | */ | |
1925 | static void | |
1926 | mwifiex_unregister_dev(struct mwifiex_adapter *adapter) | |
1927 | { | |
1928 | struct sdio_mmc_card *card = adapter->card; | |
1929 | ||
1930 | if (adapter->card) { | |
5e6e3a92 | 1931 | sdio_claim_host(card->func); |
5e6e3a92 BZ |
1932 | sdio_disable_func(card->func); |
1933 | sdio_release_host(card->func); | |
5e6e3a92 BZ |
1934 | } |
1935 | } | |
1936 | ||
1937 | /* | |
1938 | * This function registers the SDIO device. | |
1939 | * | |
1940 | * SDIO IRQ is claimed, block size is set and driver data is initialized. | |
1941 | */ | |
1942 | static int mwifiex_register_dev(struct mwifiex_adapter *adapter) | |
1943 | { | |
232fde06 | 1944 | int ret; |
5e6e3a92 BZ |
1945 | struct sdio_mmc_card *card = adapter->card; |
1946 | struct sdio_func *func = card->func; | |
1947 | ||
1948 | /* save adapter pointer in card */ | |
1949 | card->adapter = adapter; | |
828cf222 | 1950 | adapter->tx_buf_size = card->tx_buf_size; |
5e6e3a92 BZ |
1951 | |
1952 | sdio_claim_host(func); | |
1953 | ||
5e6e3a92 BZ |
1954 | /* Set block size */ |
1955 | ret = sdio_set_block_size(card->func, MWIFIEX_SDIO_BLOCK_SIZE); | |
232fde06 | 1956 | sdio_release_host(func); |
5e6e3a92 | 1957 | if (ret) { |
acebe8c1 ZL |
1958 | mwifiex_dbg(adapter, ERROR, |
1959 | "cannot set SDIO block size\n"); | |
232fde06 | 1960 | return ret; |
5e6e3a92 BZ |
1961 | } |
1962 | ||
5e6e3a92 BZ |
1963 | |
1964 | adapter->dev = &func->dev; | |
e3bea1c8 | 1965 | |
05889f82 | 1966 | strcpy(adapter->fw_name, card->firmware); |
54881c6b AK |
1967 | adapter->mem_type_mapping_tbl = mem_type_mapping_tbl; |
1968 | adapter->num_mem_types = ARRAY_SIZE(mem_type_mapping_tbl); | |
5e6e3a92 BZ |
1969 | |
1970 | return 0; | |
5e6e3a92 BZ |
1971 | } |
1972 | ||
1973 | /* | |
1974 | * This function initializes the SDIO driver. | |
1975 | * | |
1976 | * The following initializations steps are followed - | |
1977 | * - Read the Host interrupt status register to acknowledge | |
1978 | * the first interrupt got from bootloader | |
1979 | * - Disable host interrupt mask register | |
1980 | * - Get SDIO port | |
5e6e3a92 BZ |
1981 | * - Initialize SDIO variables in card |
1982 | * - Allocate MP registers | |
1983 | * - Allocate MPA Tx and Rx buffers | |
1984 | */ | |
1985 | static int mwifiex_init_sdio(struct mwifiex_adapter *adapter) | |
1986 | { | |
1987 | struct sdio_mmc_card *card = adapter->card; | |
05889f82 | 1988 | const struct mwifiex_sdio_card_reg *reg = card->reg; |
5e6e3a92 | 1989 | int ret; |
ab93d4ff | 1990 | u8 sdio_ireg; |
5e6e3a92 | 1991 | |
3c59e328 AK |
1992 | sdio_set_drvdata(card->func, card); |
1993 | ||
5e6e3a92 | 1994 | /* |
554a0113 | 1995 | * Read the host_int_status_reg for ACK the first interrupt got |
5e6e3a92 BZ |
1996 | * from the bootloader. If we don't do this we get a interrupt |
1997 | * as soon as we register the irq. | |
1998 | */ | |
554a0113 | 1999 | mwifiex_read_reg(adapter, card->reg->host_int_status_reg, &sdio_ireg); |
5e6e3a92 | 2000 | |
5e6e3a92 BZ |
2001 | /* Get SDIO ioport */ |
2002 | mwifiex_init_sdio_ioport(adapter); | |
2003 | ||
5e6e3a92 BZ |
2004 | /* Initialize SDIO variables in card */ |
2005 | card->mp_rd_bitmap = 0; | |
2006 | card->mp_wr_bitmap = 0; | |
05889f82 AK |
2007 | card->curr_rd_port = reg->start_rd_port; |
2008 | card->curr_wr_port = reg->start_wr_port; | |
5e6e3a92 | 2009 | |
05889f82 | 2010 | card->mp_data_port_mask = reg->data_port_mask; |
5e6e3a92 BZ |
2011 | |
2012 | card->mpa_tx.buf_len = 0; | |
2013 | card->mpa_tx.pkt_cnt = 0; | |
2014 | card->mpa_tx.start_port = 0; | |
2015 | ||
7d7ab022 | 2016 | card->mpa_tx.enabled = 1; |
05889f82 | 2017 | card->mpa_tx.pkt_aggr_limit = card->mp_agg_pkt_limit; |
5e6e3a92 BZ |
2018 | |
2019 | card->mpa_rx.buf_len = 0; | |
2020 | card->mpa_rx.pkt_cnt = 0; | |
2021 | card->mpa_rx.start_port = 0; | |
2022 | ||
7d7ab022 | 2023 | card->mpa_rx.enabled = 1; |
05889f82 | 2024 | card->mpa_rx.pkt_aggr_limit = card->mp_agg_pkt_limit; |
5e6e3a92 BZ |
2025 | |
2026 | /* Allocate buffers for SDIO MP-A */ | |
05889f82 | 2027 | card->mp_regs = kzalloc(reg->max_mp_regs, GFP_KERNEL); |
0d2e7a5c | 2028 | if (!card->mp_regs) |
b53575ec | 2029 | return -ENOMEM; |
5e6e3a92 | 2030 | |
c23b7c8f AK |
2031 | /* Allocate skb pointer buffers */ |
2032 | card->mpa_rx.skb_arr = kzalloc((sizeof(void *)) * | |
2033 | card->mp_agg_pkt_limit, GFP_KERNEL); | |
2034 | card->mpa_rx.len_arr = kzalloc(sizeof(*card->mpa_rx.len_arr) * | |
2035 | card->mp_agg_pkt_limit, GFP_KERNEL); | |
5e6e3a92 | 2036 | ret = mwifiex_alloc_sdio_mpa_buffers(adapter, |
e1aa93a4 AK |
2037 | card->mp_tx_agg_buf_size, |
2038 | card->mp_rx_agg_buf_size); | |
5e6e3a92 | 2039 | if (ret) { |
acebe8c1 ZL |
2040 | mwifiex_dbg(adapter, ERROR, |
2041 | "failed to alloc sdio mp-a buffers\n"); | |
5e6e3a92 BZ |
2042 | kfree(card->mp_regs); |
2043 | return -1; | |
2044 | } | |
2045 | ||
b4e8aebb | 2046 | adapter->auto_tdls = card->can_auto_tdls; |
1fe192d8 | 2047 | adapter->ext_scan = card->can_ext_scan; |
5e6e3a92 BZ |
2048 | return ret; |
2049 | } | |
2050 | ||
2051 | /* | |
2052 | * This function resets the MPA Tx and Rx buffers. | |
2053 | */ | |
2054 | static void mwifiex_cleanup_mpa_buf(struct mwifiex_adapter *adapter) | |
2055 | { | |
2056 | struct sdio_mmc_card *card = adapter->card; | |
2057 | ||
2058 | MP_TX_AGGR_BUF_RESET(card); | |
2059 | MP_RX_AGGR_BUF_RESET(card); | |
2060 | } | |
2061 | ||
2062 | /* | |
2063 | * This function cleans up the allocated card buffers. | |
2064 | * | |
2065 | * The following are freed by this function - | |
2066 | * - MP registers | |
2067 | * - MPA Tx buffer | |
2068 | * - MPA Rx buffer | |
2069 | */ | |
2070 | static void mwifiex_cleanup_sdio(struct mwifiex_adapter *adapter) | |
2071 | { | |
2072 | struct sdio_mmc_card *card = adapter->card; | |
2073 | ||
2074 | kfree(card->mp_regs); | |
c23b7c8f AK |
2075 | kfree(card->mpa_rx.skb_arr); |
2076 | kfree(card->mpa_rx.len_arr); | |
5e6e3a92 BZ |
2077 | kfree(card->mpa_tx.buf); |
2078 | kfree(card->mpa_rx.buf); | |
3c59e328 AK |
2079 | sdio_set_drvdata(card->func, NULL); |
2080 | kfree(card); | |
5e6e3a92 BZ |
2081 | } |
2082 | ||
2083 | /* | |
2084 | * This function updates the MP end port in card. | |
2085 | */ | |
2086 | static void | |
2087 | mwifiex_update_mp_end_port(struct mwifiex_adapter *adapter, u16 port) | |
2088 | { | |
2089 | struct sdio_mmc_card *card = adapter->card; | |
05889f82 | 2090 | const struct mwifiex_sdio_card_reg *reg = card->reg; |
5e6e3a92 BZ |
2091 | int i; |
2092 | ||
2093 | card->mp_end_port = port; | |
2094 | ||
05889f82 | 2095 | card->mp_data_port_mask = reg->data_port_mask; |
5e6e3a92 | 2096 | |
b60186f8 YAP |
2097 | if (reg->start_wr_port) { |
2098 | for (i = 1; i <= card->max_ports - card->mp_end_port; i++) | |
2099 | card->mp_data_port_mask &= | |
2100 | ~(1 << (card->max_ports - i)); | |
2101 | } | |
5e6e3a92 | 2102 | |
05889f82 | 2103 | card->curr_wr_port = reg->start_wr_port; |
5e6e3a92 | 2104 | |
acebe8c1 ZL |
2105 | mwifiex_dbg(adapter, CMD, |
2106 | "cmd: mp_end_port %d, data port mask 0x%x\n", | |
2107 | port, card->mp_data_port_mask); | |
5e6e3a92 BZ |
2108 | } |
2109 | ||
2f5872b6 | 2110 | static struct mwifiex_adapter *save_adapter; |
088df424 | 2111 | static void mwifiex_sdio_card_reset_work(struct mwifiex_adapter *adapter) |
d31ab357 | 2112 | { |
088df424 AK |
2113 | struct sdio_mmc_card *card = adapter->card; |
2114 | struct mmc_host *target = card->func->card->host; | |
7f5855c9 | 2115 | |
d31ab357 AK |
2116 | /* The actual reset operation must be run outside of driver thread. |
2117 | * This is because mmc_remove_host() will cause the device to be | |
2118 | * instantly destroyed, and the driver then needs to end its thread, | |
2119 | * leading to a deadlock. | |
2120 | * | |
2121 | * We run it in a totally independent workqueue. | |
2122 | */ | |
2123 | ||
acebe8c1 | 2124 | mwifiex_dbg(adapter, WARN, "Resetting card...\n"); |
7f5855c9 | 2125 | mmc_remove_host(target); |
b4f1b177 MY |
2126 | /* 200ms delay is based on experiment with sdhci controller */ |
2127 | mdelay(200); | |
81df6caf | 2128 | target->rescan_entered = 0; /* rescan non-removable cards */ |
7f5855c9 | 2129 | mmc_add_host(target); |
d31ab357 | 2130 | } |
8915d738 | 2131 | |
54881c6b AK |
2132 | /* This function read/write firmware */ |
2133 | static enum | |
2134 | rdwr_status mwifiex_sdio_rdwr_firmware(struct mwifiex_adapter *adapter, | |
2135 | u8 doneflag) | |
2136 | { | |
2137 | struct sdio_mmc_card *card = adapter->card; | |
2138 | int ret, tries; | |
2139 | u8 ctrl_data = 0; | |
2140 | ||
2141 | sdio_writeb(card->func, FW_DUMP_HOST_READY, card->reg->fw_dump_ctrl, | |
2142 | &ret); | |
2143 | if (ret) { | |
acebe8c1 | 2144 | mwifiex_dbg(adapter, ERROR, "SDIO Write ERR\n"); |
54881c6b AK |
2145 | return RDWR_STATUS_FAILURE; |
2146 | } | |
2147 | for (tries = 0; tries < MAX_POLL_TRIES; tries++) { | |
2148 | ctrl_data = sdio_readb(card->func, card->reg->fw_dump_ctrl, | |
2149 | &ret); | |
2150 | if (ret) { | |
acebe8c1 | 2151 | mwifiex_dbg(adapter, ERROR, "SDIO read err\n"); |
54881c6b AK |
2152 | return RDWR_STATUS_FAILURE; |
2153 | } | |
2154 | if (ctrl_data == FW_DUMP_DONE) | |
2155 | break; | |
2156 | if (doneflag && ctrl_data == doneflag) | |
2157 | return RDWR_STATUS_DONE; | |
2158 | if (ctrl_data != FW_DUMP_HOST_READY) { | |
acebe8c1 ZL |
2159 | mwifiex_dbg(adapter, WARN, |
2160 | "The ctrl reg was changed, re-try again!\n"); | |
54881c6b AK |
2161 | sdio_writeb(card->func, FW_DUMP_HOST_READY, |
2162 | card->reg->fw_dump_ctrl, &ret); | |
2163 | if (ret) { | |
acebe8c1 | 2164 | mwifiex_dbg(adapter, ERROR, "SDIO write err\n"); |
54881c6b AK |
2165 | return RDWR_STATUS_FAILURE; |
2166 | } | |
2167 | } | |
2168 | usleep_range(100, 200); | |
2169 | } | |
2170 | if (ctrl_data == FW_DUMP_HOST_READY) { | |
acebe8c1 ZL |
2171 | mwifiex_dbg(adapter, ERROR, |
2172 | "Fail to pull ctrl_data\n"); | |
54881c6b AK |
2173 | return RDWR_STATUS_FAILURE; |
2174 | } | |
2175 | ||
2176 | return RDWR_STATUS_SUCCESS; | |
2177 | } | |
2178 | ||
2179 | /* This function dump firmware memory to file */ | |
2f5872b6 | 2180 | static void mwifiex_sdio_fw_dump_work(struct mwifiex_adapter *adapter) |
54881c6b | 2181 | { |
54881c6b AK |
2182 | struct sdio_mmc_card *card = adapter->card; |
2183 | int ret = 0; | |
2184 | unsigned int reg, reg_start, reg_end; | |
2185 | u8 *dbg_ptr, *end_ptr, dump_num, idx, i, read_reg, doneflag = 0; | |
54881c6b AK |
2186 | enum rdwr_status stat; |
2187 | u32 memory_size; | |
2188 | static char *env[] = { "DRIVER=mwifiex_sdio", "EVENT=fw_dump", NULL }; | |
2189 | ||
11cd07a9 XH |
2190 | mwifiex_dump_drv_info(adapter); |
2191 | ||
b4e8aebb | 2192 | if (!card->can_dump_fw) |
54881c6b AK |
2193 | return; |
2194 | ||
2195 | for (idx = 0; idx < ARRAY_SIZE(mem_type_mapping_tbl); idx++) { | |
2196 | struct memory_type_mapping *entry = &mem_type_mapping_tbl[idx]; | |
2197 | ||
2198 | if (entry->mem_ptr) { | |
2199 | vfree(entry->mem_ptr); | |
2200 | entry->mem_ptr = NULL; | |
2201 | } | |
2202 | entry->mem_size = 0; | |
2203 | } | |
2204 | ||
2205 | mwifiex_pm_wakeup_card(adapter); | |
2206 | sdio_claim_host(card->func); | |
2207 | ||
acebe8c1 | 2208 | mwifiex_dbg(adapter, MSG, "== mwifiex firmware dump start ==\n"); |
54881c6b AK |
2209 | |
2210 | stat = mwifiex_sdio_rdwr_firmware(adapter, doneflag); | |
2211 | if (stat == RDWR_STATUS_FAILURE) | |
2212 | goto done; | |
2213 | ||
2214 | reg = card->reg->fw_dump_start; | |
2215 | /* Read the number of the memories which will dump */ | |
2216 | dump_num = sdio_readb(card->func, reg, &ret); | |
2217 | if (ret) { | |
acebe8c1 | 2218 | mwifiex_dbg(adapter, ERROR, "SDIO read memory length err\n"); |
54881c6b AK |
2219 | goto done; |
2220 | } | |
2221 | ||
2222 | /* Read the length of every memory which will dump */ | |
2223 | for (idx = 0; idx < dump_num; idx++) { | |
2224 | struct memory_type_mapping *entry = &mem_type_mapping_tbl[idx]; | |
2225 | ||
2226 | stat = mwifiex_sdio_rdwr_firmware(adapter, doneflag); | |
2227 | if (stat == RDWR_STATUS_FAILURE) | |
2228 | goto done; | |
2229 | ||
2230 | memory_size = 0; | |
2231 | reg = card->reg->fw_dump_start; | |
2232 | for (i = 0; i < 4; i++) { | |
2233 | read_reg = sdio_readb(card->func, reg, &ret); | |
2234 | if (ret) { | |
acebe8c1 | 2235 | mwifiex_dbg(adapter, ERROR, "SDIO read err\n"); |
54881c6b AK |
2236 | goto done; |
2237 | } | |
2238 | memory_size |= (read_reg << i*8); | |
2239 | reg++; | |
2240 | } | |
2241 | ||
2242 | if (memory_size == 0) { | |
acebe8c1 | 2243 | mwifiex_dbg(adapter, DUMP, "Firmware dump Finished!\n"); |
54881c6b AK |
2244 | break; |
2245 | } | |
2246 | ||
acebe8c1 ZL |
2247 | mwifiex_dbg(adapter, DUMP, |
2248 | "%s_SIZE=0x%x\n", entry->mem_name, memory_size); | |
54881c6b AK |
2249 | entry->mem_ptr = vmalloc(memory_size + 1); |
2250 | entry->mem_size = memory_size; | |
2251 | if (!entry->mem_ptr) { | |
acebe8c1 ZL |
2252 | mwifiex_dbg(adapter, ERROR, "Vmalloc %s failed\n", |
2253 | entry->mem_name); | |
54881c6b AK |
2254 | goto done; |
2255 | } | |
2256 | dbg_ptr = entry->mem_ptr; | |
2257 | end_ptr = dbg_ptr + memory_size; | |
2258 | ||
2259 | doneflag = entry->done_flag; | |
acebe8c1 ZL |
2260 | mwifiex_dbg(adapter, DUMP, |
2261 | "Start %s output, please wait...\n", | |
2262 | entry->mem_name); | |
54881c6b AK |
2263 | |
2264 | do { | |
2265 | stat = mwifiex_sdio_rdwr_firmware(adapter, doneflag); | |
2266 | if (stat == RDWR_STATUS_FAILURE) | |
2267 | goto done; | |
2268 | ||
2269 | reg_start = card->reg->fw_dump_start; | |
2270 | reg_end = card->reg->fw_dump_end; | |
2271 | for (reg = reg_start; reg <= reg_end; reg++) { | |
2272 | *dbg_ptr = sdio_readb(card->func, reg, &ret); | |
2273 | if (ret) { | |
acebe8c1 ZL |
2274 | mwifiex_dbg(adapter, ERROR, |
2275 | "SDIO read err\n"); | |
54881c6b AK |
2276 | goto done; |
2277 | } | |
2278 | if (dbg_ptr < end_ptr) | |
2279 | dbg_ptr++; | |
2280 | else | |
acebe8c1 ZL |
2281 | mwifiex_dbg(adapter, ERROR, |
2282 | "Allocated buf not enough\n"); | |
54881c6b AK |
2283 | } |
2284 | ||
2285 | if (stat != RDWR_STATUS_DONE) | |
2286 | continue; | |
2287 | ||
acebe8c1 ZL |
2288 | mwifiex_dbg(adapter, DUMP, "%s done: size=0x%tx\n", |
2289 | entry->mem_name, dbg_ptr - entry->mem_ptr); | |
54881c6b AK |
2290 | break; |
2291 | } while (1); | |
2292 | } | |
acebe8c1 | 2293 | mwifiex_dbg(adapter, MSG, "== mwifiex firmware dump end ==\n"); |
54881c6b AK |
2294 | |
2295 | kobject_uevent_env(&adapter->wiphy->dev.kobj, KOBJ_CHANGE, env); | |
2296 | ||
2297 | done: | |
2298 | sdio_release_host(card->func); | |
2299 | adapter->curr_mem_idx = 0; | |
2300 | } | |
2301 | ||
8915d738 AK |
2302 | static void mwifiex_sdio_work(struct work_struct *work) |
2303 | { | |
54881c6b | 2304 | if (test_and_clear_bit(MWIFIEX_IFACE_WORK_FW_DUMP, |
2f5872b6 MH |
2305 | &iface_work_flags)) |
2306 | mwifiex_sdio_fw_dump_work(save_adapter); | |
2307 | if (test_and_clear_bit(MWIFIEX_IFACE_WORK_CARD_RESET, | |
2308 | &iface_work_flags)) | |
2309 | mwifiex_sdio_card_reset_work(save_adapter); | |
8915d738 | 2310 | } |
d31ab357 | 2311 | |
2f5872b6 | 2312 | static DECLARE_WORK(sdio_work, mwifiex_sdio_work); |
d31ab357 AK |
2313 | /* This function resets the card */ |
2314 | static void mwifiex_sdio_card_reset(struct mwifiex_adapter *adapter) | |
2315 | { | |
2f5872b6 MH |
2316 | save_adapter = adapter; |
2317 | if (test_bit(MWIFIEX_IFACE_WORK_CARD_RESET, &iface_work_flags)) | |
8915d738 AK |
2318 | return; |
2319 | ||
2f5872b6 | 2320 | set_bit(MWIFIEX_IFACE_WORK_CARD_RESET, &iface_work_flags); |
8915d738 | 2321 | |
2f5872b6 | 2322 | schedule_work(&sdio_work); |
d31ab357 AK |
2323 | } |
2324 | ||
54881c6b AK |
2325 | /* This function dumps FW information */ |
2326 | static void mwifiex_sdio_fw_dump(struct mwifiex_adapter *adapter) | |
2327 | { | |
2f5872b6 MH |
2328 | save_adapter = adapter; |
2329 | if (test_bit(MWIFIEX_IFACE_WORK_FW_DUMP, &iface_work_flags)) | |
54881c6b AK |
2330 | return; |
2331 | ||
2f5872b6 MH |
2332 | set_bit(MWIFIEX_IFACE_WORK_FW_DUMP, &iface_work_flags); |
2333 | schedule_work(&sdio_work); | |
54881c6b AK |
2334 | } |
2335 | ||
809c6ea8 XH |
2336 | /* Function to dump SDIO function registers and SDIO scratch registers in case |
2337 | * of FW crash | |
2338 | */ | |
2339 | static int | |
2340 | mwifiex_sdio_reg_dump(struct mwifiex_adapter *adapter, char *drv_buf) | |
2341 | { | |
2342 | char *p = drv_buf; | |
2343 | struct sdio_mmc_card *cardp = adapter->card; | |
2344 | int ret = 0; | |
2345 | u8 count, func, data, index = 0, size = 0; | |
2346 | u8 reg, reg_start, reg_end; | |
2347 | char buf[256], *ptr; | |
2348 | ||
2349 | if (!p) | |
2350 | return 0; | |
2351 | ||
acebe8c1 | 2352 | mwifiex_dbg(adapter, MSG, "SDIO register DUMP START\n"); |
809c6ea8 XH |
2353 | |
2354 | mwifiex_pm_wakeup_card(adapter); | |
2355 | ||
2356 | sdio_claim_host(cardp->func); | |
2357 | ||
2358 | for (count = 0; count < 5; count++) { | |
2359 | memset(buf, 0, sizeof(buf)); | |
2360 | ptr = buf; | |
2361 | ||
2362 | switch (count) { | |
2363 | case 0: | |
2364 | /* Read the registers of SDIO function0 */ | |
2365 | func = count; | |
2366 | reg_start = 0; | |
2367 | reg_end = 9; | |
2368 | break; | |
2369 | case 1: | |
2370 | /* Read the registers of SDIO function1 */ | |
2371 | func = count; | |
2372 | reg_start = cardp->reg->func1_dump_reg_start; | |
2373 | reg_end = cardp->reg->func1_dump_reg_end; | |
2374 | break; | |
2375 | case 2: | |
2376 | index = 0; | |
2377 | func = 1; | |
2378 | reg_start = cardp->reg->func1_spec_reg_table[index++]; | |
2379 | size = cardp->reg->func1_spec_reg_num; | |
2380 | reg_end = cardp->reg->func1_spec_reg_table[size-1]; | |
2381 | break; | |
2382 | default: | |
2383 | /* Read the scratch registers of SDIO function1 */ | |
2384 | if (count == 4) | |
2385 | mdelay(100); | |
2386 | func = 1; | |
2387 | reg_start = cardp->reg->func1_scratch_reg; | |
2388 | reg_end = reg_start + MWIFIEX_SDIO_SCRATCH_SIZE; | |
2389 | } | |
2390 | ||
2391 | if (count != 2) | |
2392 | ptr += sprintf(ptr, "SDIO Func%d (%#x-%#x): ", | |
2393 | func, reg_start, reg_end); | |
2394 | else | |
2395 | ptr += sprintf(ptr, "SDIO Func%d: ", func); | |
2396 | ||
2397 | for (reg = reg_start; reg <= reg_end;) { | |
2398 | if (func == 0) | |
2399 | data = sdio_f0_readb(cardp->func, reg, &ret); | |
2400 | else | |
2401 | data = sdio_readb(cardp->func, reg, &ret); | |
2402 | ||
2403 | if (count == 2) | |
2404 | ptr += sprintf(ptr, "(%#x) ", reg); | |
2405 | if (!ret) { | |
2406 | ptr += sprintf(ptr, "%02x ", data); | |
2407 | } else { | |
2408 | ptr += sprintf(ptr, "ERR"); | |
2409 | break; | |
2410 | } | |
2411 | ||
2412 | if (count == 2 && reg < reg_end) | |
2413 | reg = cardp->reg->func1_spec_reg_table[index++]; | |
2414 | else | |
2415 | reg++; | |
2416 | } | |
2417 | ||
acebe8c1 | 2418 | mwifiex_dbg(adapter, MSG, "%s\n", buf); |
809c6ea8 XH |
2419 | p += sprintf(p, "%s\n", buf); |
2420 | } | |
2421 | ||
2422 | sdio_release_host(cardp->func); | |
2423 | ||
acebe8c1 | 2424 | mwifiex_dbg(adapter, MSG, "SDIO register DUMP END\n"); |
809c6ea8 XH |
2425 | |
2426 | return p - drv_buf; | |
2427 | } | |
2428 | ||
5e6e3a92 BZ |
2429 | static struct mwifiex_if_ops sdio_ops = { |
2430 | .init_if = mwifiex_init_sdio, | |
2431 | .cleanup_if = mwifiex_cleanup_sdio, | |
2432 | .check_fw_status = mwifiex_check_fw_status, | |
2433 | .prog_fw = mwifiex_prog_fw_w_helper, | |
2434 | .register_dev = mwifiex_register_dev, | |
2435 | .unregister_dev = mwifiex_unregister_dev, | |
2436 | .enable_int = mwifiex_sdio_enable_host_int, | |
232fde06 | 2437 | .disable_int = mwifiex_sdio_disable_host_int, |
5e6e3a92 BZ |
2438 | .process_int_status = mwifiex_process_int_status, |
2439 | .host_to_card = mwifiex_sdio_host_to_card, | |
2440 | .wakeup = mwifiex_pm_wakeup_card, | |
2441 | .wakeup_complete = mwifiex_pm_wakeup_card_complete, | |
2442 | ||
2443 | /* SDIO specific */ | |
2444 | .update_mp_end_port = mwifiex_update_mp_end_port, | |
2445 | .cleanup_mpa_buf = mwifiex_cleanup_mpa_buf, | |
d930faee AK |
2446 | .cmdrsp_complete = mwifiex_sdio_cmdrsp_complete, |
2447 | .event_complete = mwifiex_sdio_event_complete, | |
d31ab357 | 2448 | .card_reset = mwifiex_sdio_card_reset, |
54881c6b | 2449 | .fw_dump = mwifiex_sdio_fw_dump, |
809c6ea8 | 2450 | .reg_dump = mwifiex_sdio_reg_dump, |
92263a84 | 2451 | .deaggr_pkt = mwifiex_deaggr_sdio_pkt, |
5e6e3a92 BZ |
2452 | }; |
2453 | ||
2454 | /* | |
2455 | * This function initializes the SDIO driver. | |
2456 | * | |
2457 | * This initiates the semaphore and registers the device with | |
2458 | * SDIO bus. | |
2459 | */ | |
2460 | static int | |
2461 | mwifiex_sdio_init_module(void) | |
2462 | { | |
5e6e3a92 BZ |
2463 | sema_init(&add_remove_card_sem, 1); |
2464 | ||
287546df AK |
2465 | /* Clear the flag in case user removes the card. */ |
2466 | user_rmmod = 0; | |
2467 | ||
636c4598 | 2468 | return sdio_register_driver(&mwifiex_sdio); |
5e6e3a92 BZ |
2469 | } |
2470 | ||
2471 | /* | |
2472 | * This function cleans up the SDIO driver. | |
2473 | * | |
2474 | * The following major steps are followed for cleanup - | |
2475 | * - Resume the device if its suspended | |
2476 | * - Disconnect the device if connected | |
2477 | * - Shutdown the firmware | |
2478 | * - Unregister the device from SDIO bus. | |
2479 | */ | |
2480 | static void | |
2481 | mwifiex_sdio_cleanup_module(void) | |
2482 | { | |
287546df AK |
2483 | if (!down_interruptible(&add_remove_card_sem)) |
2484 | up(&add_remove_card_sem); | |
5e6e3a92 | 2485 | |
287546df AK |
2486 | /* Set the flag as user is removing this module. */ |
2487 | user_rmmod = 1; | |
2f5872b6 | 2488 | cancel_work_sync(&sdio_work); |
5e6e3a92 | 2489 | |
5e6e3a92 BZ |
2490 | sdio_unregister_driver(&mwifiex_sdio); |
2491 | } | |
2492 | ||
2493 | module_init(mwifiex_sdio_init_module); | |
2494 | module_exit(mwifiex_sdio_cleanup_module); | |
2495 | ||
2496 | MODULE_AUTHOR("Marvell International Ltd."); | |
2497 | MODULE_DESCRIPTION("Marvell WiFi-Ex SDIO Driver version " SDIO_VERSION); | |
2498 | MODULE_VERSION(SDIO_VERSION); | |
2499 | MODULE_LICENSE("GPL v2"); | |
98e6b9df | 2500 | MODULE_FIRMWARE(SD8786_DEFAULT_FW_NAME); |
e3bea1c8 BZ |
2501 | MODULE_FIRMWARE(SD8787_DEFAULT_FW_NAME); |
2502 | MODULE_FIRMWARE(SD8797_DEFAULT_FW_NAME); | |
b60186f8 | 2503 | MODULE_FIRMWARE(SD8897_DEFAULT_FW_NAME); |
030bb75a | 2504 | MODULE_FIRMWARE(SD8887_DEFAULT_FW_NAME); |