Commit | Line | Data |
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5e6e3a92 BZ |
1 | /* |
2 | * Marvell Wireless LAN device driver: SDIO specific handling | |
3 | * | |
65da33f5 | 4 | * Copyright (C) 2011-2014, Marvell International Ltd. |
5e6e3a92 BZ |
5 | * |
6 | * This software file (the "File") is distributed by Marvell International | |
7 | * Ltd. under the terms of the GNU General Public License Version 2, June 1991 | |
8 | * (the "License"). You may use, redistribute and/or modify this File in | |
9 | * accordance with the terms and conditions of the License, a copy of which | |
10 | * is available by writing to the Free Software Foundation, Inc., | |
11 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the | |
12 | * worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt. | |
13 | * | |
14 | * THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE | |
15 | * IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE | |
16 | * ARE EXPRESSLY DISCLAIMED. The License provides additional details about | |
17 | * this warranty disclaimer. | |
18 | */ | |
19 | ||
20 | #include <linux/firmware.h> | |
21 | ||
22 | #include "decl.h" | |
23 | #include "ioctl.h" | |
24 | #include "util.h" | |
25 | #include "fw.h" | |
26 | #include "main.h" | |
27 | #include "wmm.h" | |
28 | #include "11n.h" | |
29 | #include "sdio.h" | |
30 | ||
31 | ||
32 | #define SDIO_VERSION "1.0" | |
33 | ||
287546df AK |
34 | /* The mwifiex_sdio_remove() callback function is called when |
35 | * user removes this module from kernel space or ejects | |
36 | * the card from the slot. The driver handles these 2 cases | |
37 | * differently. | |
38 | * If the user is removing the module, the few commands (FUNC_SHUTDOWN, | |
39 | * HS_CANCEL etc.) are sent to the firmware. | |
40 | * If the card is removed, there is no need to send these command. | |
41 | * | |
42 | * The variable 'user_rmmod' is used to distinguish these two | |
43 | * scenarios. This flag is initialized as FALSE in case the card | |
44 | * is removed, and will be set to TRUE for module removal when | |
45 | * module_exit function is called. | |
46 | */ | |
47 | static u8 user_rmmod; | |
48 | ||
5e6e3a92 BZ |
49 | static struct mwifiex_if_ops sdio_ops; |
50 | ||
51 | static struct semaphore add_remove_card_sem; | |
52 | ||
54881c6b AK |
53 | static struct memory_type_mapping mem_type_mapping_tbl[] = { |
54 | {"ITCM", NULL, 0, 0xF0}, | |
55 | {"DTCM", NULL, 0, 0xF1}, | |
56 | {"SQRAM", NULL, 0, 0xF2}, | |
57 | {"APU", NULL, 0, 0xF3}, | |
58 | {"CIU", NULL, 0, 0xF4}, | |
59 | {"ICU", NULL, 0, 0xF5}, | |
60 | {"MAC", NULL, 0, 0xF6}, | |
61 | {"EXT7", NULL, 0, 0xF7}, | |
62 | {"EXT8", NULL, 0, 0xF8}, | |
63 | {"EXT9", NULL, 0, 0xF9}, | |
64 | {"EXT10", NULL, 0, 0xFA}, | |
65 | {"EXT11", NULL, 0, 0xFB}, | |
66 | {"EXT12", NULL, 0, 0xFC}, | |
67 | {"EXT13", NULL, 0, 0xFD}, | |
68 | {"EXTLAST", NULL, 0, 0xFE}, | |
69 | }; | |
70 | ||
5e6e3a92 BZ |
71 | /* |
72 | * SDIO probe. | |
73 | * | |
74 | * This function probes an mwifiex device and registers it. It allocates | |
75 | * the card structure, enables SDIO function number and initiates the | |
76 | * device registration and initialization procedure by adding a logical | |
77 | * interface. | |
78 | */ | |
79 | static int | |
80 | mwifiex_sdio_probe(struct sdio_func *func, const struct sdio_device_id *id) | |
81 | { | |
270e58e8 | 82 | int ret; |
5e6e3a92 BZ |
83 | struct sdio_mmc_card *card = NULL; |
84 | ||
85 | pr_debug("info: vendor=0x%4.04X device=0x%4.04X class=%d function=%d\n", | |
5dbd326c | 86 | func->vendor, func->device, func->class, func->num); |
5e6e3a92 BZ |
87 | |
88 | card = kzalloc(sizeof(struct sdio_mmc_card), GFP_KERNEL); | |
e404decb | 89 | if (!card) |
5e6e3a92 | 90 | return -ENOMEM; |
5e6e3a92 BZ |
91 | |
92 | card->func = func; | |
93 | ||
94 | func->card->quirks |= MMC_QUIRK_BLKSZ_FOR_BYTE_MODE; | |
95 | ||
05889f82 AK |
96 | if (id->driver_data) { |
97 | struct mwifiex_sdio_device *data = (void *)id->driver_data; | |
98 | ||
99 | card->firmware = data->firmware; | |
100 | card->reg = data->reg; | |
101 | card->max_ports = data->max_ports; | |
102 | card->mp_agg_pkt_limit = data->mp_agg_pkt_limit; | |
b60186f8 YAP |
103 | card->supports_sdio_new_mode = data->supports_sdio_new_mode; |
104 | card->has_control_mask = data->has_control_mask; | |
828cf222 | 105 | card->tx_buf_size = data->tx_buf_size; |
e1aa93a4 AK |
106 | card->mp_tx_agg_buf_size = data->mp_tx_agg_buf_size; |
107 | card->mp_rx_agg_buf_size = data->mp_rx_agg_buf_size; | |
54881c6b | 108 | card->supports_fw_dump = data->supports_fw_dump; |
7bf16521 | 109 | card->auto_tdls = data->auto_tdls; |
05889f82 AK |
110 | } |
111 | ||
5e6e3a92 BZ |
112 | sdio_claim_host(func); |
113 | ret = sdio_enable_func(func); | |
114 | sdio_release_host(func); | |
115 | ||
116 | if (ret) { | |
117 | pr_err("%s: failed to enable function\n", __func__); | |
b53575ec | 118 | kfree(card); |
5e6e3a92 BZ |
119 | return -EIO; |
120 | } | |
121 | ||
d930faee AK |
122 | if (mwifiex_add_card(card, &add_remove_card_sem, &sdio_ops, |
123 | MWIFIEX_SDIO)) { | |
5e6e3a92 BZ |
124 | pr_err("%s: add card failed\n", __func__); |
125 | kfree(card); | |
126 | sdio_claim_host(func); | |
127 | ret = sdio_disable_func(func); | |
128 | sdio_release_host(func); | |
129 | ret = -1; | |
130 | } | |
131 | ||
132 | return ret; | |
133 | } | |
134 | ||
2cdf359a AK |
135 | /* |
136 | * SDIO resume. | |
137 | * | |
138 | * Kernel needs to suspend all functions separately. Therefore all | |
139 | * registered functions must have drivers with suspend and resume | |
140 | * methods. Failing that the kernel simply removes the whole card. | |
141 | * | |
142 | * If already not resumed, this function turns on the traffic and | |
143 | * sends a host sleep cancel request to the firmware. | |
144 | */ | |
145 | static int mwifiex_sdio_resume(struct device *dev) | |
146 | { | |
147 | struct sdio_func *func = dev_to_sdio_func(dev); | |
148 | struct sdio_mmc_card *card; | |
149 | struct mwifiex_adapter *adapter; | |
150 | mmc_pm_flag_t pm_flag = 0; | |
151 | ||
152 | if (func) { | |
153 | pm_flag = sdio_get_host_pm_caps(func); | |
154 | card = sdio_get_drvdata(func); | |
155 | if (!card || !card->adapter) { | |
156 | pr_err("resume: invalid card or adapter\n"); | |
157 | return 0; | |
158 | } | |
159 | } else { | |
160 | pr_err("resume: sdio_func is not specified\n"); | |
161 | return 0; | |
162 | } | |
163 | ||
164 | adapter = card->adapter; | |
165 | ||
166 | if (!adapter->is_suspended) { | |
167 | dev_warn(adapter->dev, "device already resumed\n"); | |
168 | return 0; | |
169 | } | |
170 | ||
171 | adapter->is_suspended = false; | |
172 | ||
173 | /* Disable Host Sleep */ | |
174 | mwifiex_cancel_hs(mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA), | |
175 | MWIFIEX_ASYNC_CMD); | |
176 | ||
177 | return 0; | |
178 | } | |
179 | ||
5e6e3a92 BZ |
180 | /* |
181 | * SDIO remove. | |
182 | * | |
183 | * This function removes the interface and frees up the card structure. | |
184 | */ | |
185 | static void | |
186 | mwifiex_sdio_remove(struct sdio_func *func) | |
187 | { | |
188 | struct sdio_mmc_card *card; | |
287546df | 189 | struct mwifiex_adapter *adapter; |
5dbd326c | 190 | struct mwifiex_private *priv; |
5e6e3a92 BZ |
191 | |
192 | pr_debug("info: SDIO func num=%d\n", func->num); | |
193 | ||
287546df AK |
194 | card = sdio_get_drvdata(func); |
195 | if (!card) | |
196 | return; | |
197 | ||
198 | adapter = card->adapter; | |
199 | if (!adapter || !adapter->priv_num) | |
200 | return; | |
201 | ||
8915d738 AK |
202 | cancel_work_sync(&adapter->iface_work); |
203 | ||
287546df AK |
204 | if (user_rmmod) { |
205 | if (adapter->is_suspended) | |
206 | mwifiex_sdio_resume(adapter->dev); | |
207 | ||
848819f4 | 208 | mwifiex_deauthenticate_all(adapter); |
287546df | 209 | |
5dbd326c YAP |
210 | priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY); |
211 | mwifiex_disable_auto_ds(priv); | |
212 | mwifiex_init_shutdown_fw(priv, MWIFIEX_FUNC_SHUTDOWN); | |
5e6e3a92 | 213 | } |
287546df AK |
214 | |
215 | mwifiex_remove_card(card->adapter, &add_remove_card_sem); | |
5e6e3a92 BZ |
216 | } |
217 | ||
218 | /* | |
219 | * SDIO suspend. | |
220 | * | |
221 | * Kernel needs to suspend all functions separately. Therefore all | |
222 | * registered functions must have drivers with suspend and resume | |
223 | * methods. Failing that the kernel simply removes the whole card. | |
224 | * | |
225 | * If already not suspended, this function allocates and sends a host | |
226 | * sleep activate request to the firmware and turns off the traffic. | |
227 | */ | |
228 | static int mwifiex_sdio_suspend(struct device *dev) | |
229 | { | |
230 | struct sdio_func *func = dev_to_sdio_func(dev); | |
231 | struct sdio_mmc_card *card; | |
270e58e8 | 232 | struct mwifiex_adapter *adapter; |
5e6e3a92 | 233 | mmc_pm_flag_t pm_flag = 0; |
5e6e3a92 BZ |
234 | int ret = 0; |
235 | ||
236 | if (func) { | |
237 | pm_flag = sdio_get_host_pm_caps(func); | |
238 | pr_debug("cmd: %s: suspend: PM flag = 0x%x\n", | |
5dbd326c | 239 | sdio_func_id(func), pm_flag); |
5e6e3a92 BZ |
240 | if (!(pm_flag & MMC_PM_KEEP_POWER)) { |
241 | pr_err("%s: cannot remain alive while host is" | |
242 | " suspended\n", sdio_func_id(func)); | |
243 | return -ENOSYS; | |
244 | } | |
245 | ||
246 | card = sdio_get_drvdata(func); | |
247 | if (!card || !card->adapter) { | |
248 | pr_err("suspend: invalid card or adapter\n"); | |
249 | return 0; | |
250 | } | |
251 | } else { | |
252 | pr_err("suspend: sdio_func is not specified\n"); | |
253 | return 0; | |
254 | } | |
255 | ||
256 | adapter = card->adapter; | |
257 | ||
258 | /* Enable the Host Sleep */ | |
dd321acd BZ |
259 | if (!mwifiex_enable_hs(adapter)) { |
260 | dev_err(adapter->dev, "cmd: failed to suspend\n"); | |
c0dbba66 | 261 | adapter->hs_enabling = false; |
dd321acd | 262 | return -EFAULT; |
5e6e3a92 BZ |
263 | } |
264 | ||
dd321acd BZ |
265 | dev_dbg(adapter->dev, "cmd: suspend with MMC_PM_KEEP_POWER\n"); |
266 | ret = sdio_set_host_pm_flags(func, MMC_PM_KEEP_POWER); | |
267 | ||
5e6e3a92 BZ |
268 | /* Indicate device suspended */ |
269 | adapter->is_suspended = true; | |
c0dbba66 | 270 | adapter->hs_enabling = false; |
5e6e3a92 | 271 | |
5e6e3a92 BZ |
272 | return ret; |
273 | } | |
274 | ||
98e6b9df W |
275 | /* Device ID for SD8786 */ |
276 | #define SDIO_DEVICE_ID_MARVELL_8786 (0x9116) | |
5e6e3a92 BZ |
277 | /* Device ID for SD8787 */ |
278 | #define SDIO_DEVICE_ID_MARVELL_8787 (0x9119) | |
e3bea1c8 BZ |
279 | /* Device ID for SD8797 */ |
280 | #define SDIO_DEVICE_ID_MARVELL_8797 (0x9129) | |
b60186f8 YAP |
281 | /* Device ID for SD8897 */ |
282 | #define SDIO_DEVICE_ID_MARVELL_8897 (0x912d) | |
030bb75a AP |
283 | /* Device ID for SD8887 */ |
284 | #define SDIO_DEVICE_ID_MARVELL_8887 (0x9135) | |
52bd3d20 YAP |
285 | /* Device ID for SD8801 */ |
286 | #define SDIO_DEVICE_ID_MARVELL_8801 (0x9139) | |
287 | ||
5e6e3a92 BZ |
288 | |
289 | /* WLAN IDs */ | |
290 | static const struct sdio_device_id mwifiex_ids[] = { | |
05889f82 AK |
291 | {SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8786), |
292 | .driver_data = (unsigned long) &mwifiex_sdio_sd8786}, | |
293 | {SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8787), | |
294 | .driver_data = (unsigned long) &mwifiex_sdio_sd8787}, | |
295 | {SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8797), | |
296 | .driver_data = (unsigned long) &mwifiex_sdio_sd8797}, | |
b60186f8 YAP |
297 | {SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8897), |
298 | .driver_data = (unsigned long) &mwifiex_sdio_sd8897}, | |
030bb75a AP |
299 | {SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8887), |
300 | .driver_data = (unsigned long)&mwifiex_sdio_sd8887}, | |
52bd3d20 YAP |
301 | {SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8801), |
302 | .driver_data = (unsigned long)&mwifiex_sdio_sd8801}, | |
5e6e3a92 BZ |
303 | {}, |
304 | }; | |
305 | ||
306 | MODULE_DEVICE_TABLE(sdio, mwifiex_ids); | |
307 | ||
308 | static const struct dev_pm_ops mwifiex_sdio_pm_ops = { | |
309 | .suspend = mwifiex_sdio_suspend, | |
310 | .resume = mwifiex_sdio_resume, | |
311 | }; | |
312 | ||
313 | static struct sdio_driver mwifiex_sdio = { | |
314 | .name = "mwifiex_sdio", | |
315 | .id_table = mwifiex_ids, | |
316 | .probe = mwifiex_sdio_probe, | |
317 | .remove = mwifiex_sdio_remove, | |
318 | .drv = { | |
319 | .owner = THIS_MODULE, | |
320 | .pm = &mwifiex_sdio_pm_ops, | |
321 | } | |
322 | }; | |
323 | ||
232fde06 DD |
324 | /* Write data into SDIO card register. Caller claims SDIO device. */ |
325 | static int | |
326 | mwifiex_write_reg_locked(struct sdio_func *func, u32 reg, u8 data) | |
327 | { | |
328 | int ret = -1; | |
329 | sdio_writeb(func, data, reg, &ret); | |
330 | return ret; | |
331 | } | |
332 | ||
5e6e3a92 BZ |
333 | /* |
334 | * This function writes data into SDIO card register. | |
335 | */ | |
336 | static int | |
ab93d4ff | 337 | mwifiex_write_reg(struct mwifiex_adapter *adapter, u32 reg, u8 data) |
5e6e3a92 BZ |
338 | { |
339 | struct sdio_mmc_card *card = adapter->card; | |
232fde06 | 340 | int ret; |
5e6e3a92 BZ |
341 | |
342 | sdio_claim_host(card->func); | |
232fde06 | 343 | ret = mwifiex_write_reg_locked(card->func, reg, data); |
5e6e3a92 BZ |
344 | sdio_release_host(card->func); |
345 | ||
346 | return ret; | |
347 | } | |
348 | ||
349 | /* | |
350 | * This function reads data from SDIO card register. | |
351 | */ | |
352 | static int | |
ab93d4ff | 353 | mwifiex_read_reg(struct mwifiex_adapter *adapter, u32 reg, u8 *data) |
5e6e3a92 BZ |
354 | { |
355 | struct sdio_mmc_card *card = adapter->card; | |
356 | int ret = -1; | |
357 | u8 val; | |
358 | ||
359 | sdio_claim_host(card->func); | |
360 | val = sdio_readb(card->func, reg, &ret); | |
361 | sdio_release_host(card->func); | |
362 | ||
363 | *data = val; | |
364 | ||
365 | return ret; | |
366 | } | |
367 | ||
368 | /* | |
369 | * This function writes multiple data into SDIO card memory. | |
370 | * | |
371 | * This does not work in suspended mode. | |
372 | */ | |
373 | static int | |
374 | mwifiex_write_data_sync(struct mwifiex_adapter *adapter, | |
572e8f3e | 375 | u8 *buffer, u32 pkt_len, u32 port) |
5e6e3a92 BZ |
376 | { |
377 | struct sdio_mmc_card *card = adapter->card; | |
5b2e2ecc | 378 | int ret; |
5e6e3a92 BZ |
379 | u8 blk_mode = |
380 | (port & MWIFIEX_SDIO_BYTE_MODE_MASK) ? BYTE_MODE : BLOCK_MODE; | |
381 | u32 blk_size = (blk_mode == BLOCK_MODE) ? MWIFIEX_SDIO_BLOCK_SIZE : 1; | |
382 | u32 blk_cnt = | |
383 | (blk_mode == | |
384 | BLOCK_MODE) ? (pkt_len / | |
385 | MWIFIEX_SDIO_BLOCK_SIZE) : pkt_len; | |
386 | u32 ioport = (port & MWIFIEX_SDIO_IO_PORT_MASK); | |
387 | ||
388 | if (adapter->is_suspended) { | |
389 | dev_err(adapter->dev, | |
390 | "%s: not allowed while suspended\n", __func__); | |
391 | return -1; | |
392 | } | |
393 | ||
394 | sdio_claim_host(card->func); | |
395 | ||
5b2e2ecc | 396 | ret = sdio_writesb(card->func, ioport, buffer, blk_cnt * blk_size); |
5e6e3a92 BZ |
397 | |
398 | sdio_release_host(card->func); | |
399 | ||
400 | return ret; | |
401 | } | |
402 | ||
403 | /* | |
404 | * This function reads multiple data from SDIO card memory. | |
405 | */ | |
572e8f3e AK |
406 | static int mwifiex_read_data_sync(struct mwifiex_adapter *adapter, u8 *buffer, |
407 | u32 len, u32 port, u8 claim) | |
5e6e3a92 BZ |
408 | { |
409 | struct sdio_mmc_card *card = adapter->card; | |
5b2e2ecc | 410 | int ret; |
5dbd326c YAP |
411 | u8 blk_mode = (port & MWIFIEX_SDIO_BYTE_MODE_MASK) ? BYTE_MODE |
412 | : BLOCK_MODE; | |
5e6e3a92 | 413 | u32 blk_size = (blk_mode == BLOCK_MODE) ? MWIFIEX_SDIO_BLOCK_SIZE : 1; |
5dbd326c YAP |
414 | u32 blk_cnt = (blk_mode == BLOCK_MODE) ? (len / MWIFIEX_SDIO_BLOCK_SIZE) |
415 | : len; | |
5e6e3a92 BZ |
416 | u32 ioport = (port & MWIFIEX_SDIO_IO_PORT_MASK); |
417 | ||
418 | if (claim) | |
419 | sdio_claim_host(card->func); | |
420 | ||
5b2e2ecc | 421 | ret = sdio_readsb(card->func, buffer, ioport, blk_cnt * blk_size); |
5e6e3a92 BZ |
422 | |
423 | if (claim) | |
424 | sdio_release_host(card->func); | |
425 | ||
426 | return ret; | |
427 | } | |
428 | ||
429 | /* | |
430 | * This function wakes up the card. | |
431 | * | |
432 | * A host power up command is written to the card configuration | |
433 | * register to wake up the card. | |
434 | */ | |
435 | static int mwifiex_pm_wakeup_card(struct mwifiex_adapter *adapter) | |
436 | { | |
5e6e3a92 | 437 | dev_dbg(adapter->dev, "event: wakeup device...\n"); |
5e6e3a92 | 438 | |
636c4598 | 439 | return mwifiex_write_reg(adapter, CONFIGURATION_REG, HOST_POWER_UP); |
5e6e3a92 BZ |
440 | } |
441 | ||
442 | /* | |
443 | * This function is called after the card has woken up. | |
444 | * | |
445 | * The card configuration register is reset. | |
446 | */ | |
447 | static int mwifiex_pm_wakeup_card_complete(struct mwifiex_adapter *adapter) | |
448 | { | |
5e6e3a92 | 449 | dev_dbg(adapter->dev, "cmd: wakeup device completed\n"); |
5e6e3a92 | 450 | |
636c4598 | 451 | return mwifiex_write_reg(adapter, CONFIGURATION_REG, 0); |
5e6e3a92 BZ |
452 | } |
453 | ||
454 | /* | |
b60186f8 YAP |
455 | * This function is used to initialize IO ports for the |
456 | * chipsets supporting SDIO new mode eg SD8897. | |
457 | */ | |
458 | static int mwifiex_init_sdio_new_mode(struct mwifiex_adapter *adapter) | |
459 | { | |
460 | u8 reg; | |
554a0113 | 461 | struct sdio_mmc_card *card = adapter->card; |
b60186f8 YAP |
462 | |
463 | adapter->ioport = MEM_PORT; | |
464 | ||
465 | /* enable sdio new mode */ | |
554a0113 | 466 | if (mwifiex_read_reg(adapter, card->reg->card_cfg_2_1_reg, ®)) |
b60186f8 | 467 | return -1; |
554a0113 | 468 | if (mwifiex_write_reg(adapter, card->reg->card_cfg_2_1_reg, |
b60186f8 YAP |
469 | reg | CMD53_NEW_MODE)) |
470 | return -1; | |
471 | ||
472 | /* Configure cmd port and enable reading rx length from the register */ | |
554a0113 | 473 | if (mwifiex_read_reg(adapter, card->reg->cmd_cfg_0, ®)) |
b60186f8 | 474 | return -1; |
554a0113 AP |
475 | if (mwifiex_write_reg(adapter, card->reg->cmd_cfg_0, |
476 | reg | CMD_PORT_RD_LEN_EN)) | |
b60186f8 YAP |
477 | return -1; |
478 | ||
479 | /* Enable Dnld/Upld ready auto reset for cmd port after cmd53 is | |
480 | * completed | |
481 | */ | |
554a0113 | 482 | if (mwifiex_read_reg(adapter, card->reg->cmd_cfg_1, ®)) |
b60186f8 | 483 | return -1; |
554a0113 AP |
484 | if (mwifiex_write_reg(adapter, card->reg->cmd_cfg_1, |
485 | reg | CMD_PORT_AUTO_EN)) | |
b60186f8 YAP |
486 | return -1; |
487 | ||
488 | return 0; | |
489 | } | |
490 | ||
491 | /* This function initializes the IO ports. | |
5e6e3a92 BZ |
492 | * |
493 | * The following operations are performed - | |
494 | * - Read the IO ports (0, 1 and 2) | |
495 | * - Set host interrupt Reset-To-Read to clear | |
496 | * - Set auto re-enable interrupt | |
497 | */ | |
498 | static int mwifiex_init_sdio_ioport(struct mwifiex_adapter *adapter) | |
499 | { | |
ab93d4ff | 500 | u8 reg; |
05889f82 | 501 | struct sdio_mmc_card *card = adapter->card; |
5e6e3a92 BZ |
502 | |
503 | adapter->ioport = 0; | |
504 | ||
b60186f8 YAP |
505 | if (card->supports_sdio_new_mode) { |
506 | if (mwifiex_init_sdio_new_mode(adapter)) | |
507 | return -1; | |
508 | goto cont; | |
509 | } | |
510 | ||
5e6e3a92 | 511 | /* Read the IO port */ |
554a0113 | 512 | if (!mwifiex_read_reg(adapter, card->reg->io_port_0_reg, ®)) |
5e6e3a92 BZ |
513 | adapter->ioport |= (reg & 0xff); |
514 | else | |
515 | return -1; | |
516 | ||
554a0113 | 517 | if (!mwifiex_read_reg(adapter, card->reg->io_port_1_reg, ®)) |
5e6e3a92 BZ |
518 | adapter->ioport |= ((reg & 0xff) << 8); |
519 | else | |
520 | return -1; | |
521 | ||
554a0113 | 522 | if (!mwifiex_read_reg(adapter, card->reg->io_port_2_reg, ®)) |
5e6e3a92 BZ |
523 | adapter->ioport |= ((reg & 0xff) << 16); |
524 | else | |
525 | return -1; | |
b60186f8 | 526 | cont: |
5e6e3a92 BZ |
527 | pr_debug("info: SDIO FUNC1 IO port: %#x\n", adapter->ioport); |
528 | ||
529 | /* Set Host interrupt reset to read to clear */ | |
554a0113 AP |
530 | if (!mwifiex_read_reg(adapter, card->reg->host_int_rsr_reg, ®)) |
531 | mwifiex_write_reg(adapter, card->reg->host_int_rsr_reg, | |
05889f82 | 532 | reg | card->reg->sdio_int_mask); |
5e6e3a92 BZ |
533 | else |
534 | return -1; | |
535 | ||
536 | /* Dnld/Upld ready set to auto reset */ | |
05889f82 AK |
537 | if (!mwifiex_read_reg(adapter, card->reg->card_misc_cfg_reg, ®)) |
538 | mwifiex_write_reg(adapter, card->reg->card_misc_cfg_reg, | |
5e6e3a92 BZ |
539 | reg | AUTO_RE_ENABLE_INT); |
540 | else | |
541 | return -1; | |
542 | ||
543 | return 0; | |
544 | } | |
545 | ||
546 | /* | |
547 | * This function sends data to the card. | |
548 | */ | |
549 | static int mwifiex_write_data_to_card(struct mwifiex_adapter *adapter, | |
550 | u8 *payload, u32 pkt_len, u32 port) | |
551 | { | |
552 | u32 i = 0; | |
270e58e8 | 553 | int ret; |
5e6e3a92 BZ |
554 | |
555 | do { | |
572e8f3e | 556 | ret = mwifiex_write_data_sync(adapter, payload, pkt_len, port); |
5e6e3a92 BZ |
557 | if (ret) { |
558 | i++; | |
559 | dev_err(adapter->dev, "host_to_card, write iomem" | |
560 | " (%d) failed: %d\n", i, ret); | |
5dbd326c | 561 | if (mwifiex_write_reg(adapter, CONFIGURATION_REG, 0x04)) |
5e6e3a92 BZ |
562 | dev_err(adapter->dev, "write CFG reg failed\n"); |
563 | ||
564 | ret = -1; | |
565 | if (i > MAX_WRITE_IOMEM_RETRY) | |
566 | return ret; | |
567 | } | |
568 | } while (ret == -1); | |
569 | ||
570 | return ret; | |
571 | } | |
572 | ||
573 | /* | |
574 | * This function gets the read port. | |
575 | * | |
576 | * If control port bit is set in MP read bitmap, the control port | |
577 | * is returned, otherwise the current read port is returned and | |
578 | * the value is increased (provided it does not reach the maximum | |
579 | * limit, in which case it is reset to 1) | |
580 | */ | |
581 | static int mwifiex_get_rd_port(struct mwifiex_adapter *adapter, u8 *port) | |
582 | { | |
583 | struct sdio_mmc_card *card = adapter->card; | |
05889f82 | 584 | const struct mwifiex_sdio_card_reg *reg = card->reg; |
5ac253d5 | 585 | u32 rd_bitmap = card->mp_rd_bitmap; |
5e6e3a92 | 586 | |
5ac253d5 | 587 | dev_dbg(adapter->dev, "data: mp_rd_bitmap=0x%08x\n", rd_bitmap); |
5e6e3a92 | 588 | |
b60186f8 YAP |
589 | if (card->supports_sdio_new_mode) { |
590 | if (!(rd_bitmap & reg->data_port_mask)) | |
591 | return -1; | |
592 | } else { | |
593 | if (!(rd_bitmap & (CTRL_PORT_MASK | reg->data_port_mask))) | |
594 | return -1; | |
595 | } | |
5e6e3a92 | 596 | |
b60186f8 YAP |
597 | if ((card->has_control_mask) && |
598 | (card->mp_rd_bitmap & CTRL_PORT_MASK)) { | |
5ac253d5 | 599 | card->mp_rd_bitmap &= (u32) (~CTRL_PORT_MASK); |
5e6e3a92 | 600 | *port = CTRL_PORT; |
5ac253d5 | 601 | dev_dbg(adapter->dev, "data: port=%d mp_rd_bitmap=0x%08x\n", |
5dbd326c | 602 | *port, card->mp_rd_bitmap); |
e6a52030 | 603 | return 0; |
5e6e3a92 | 604 | } |
e6a52030 AK |
605 | |
606 | if (!(card->mp_rd_bitmap & (1 << card->curr_rd_port))) | |
607 | return -1; | |
608 | ||
609 | /* We are now handling the SDIO data ports */ | |
610 | card->mp_rd_bitmap &= (u32)(~(1 << card->curr_rd_port)); | |
611 | *port = card->curr_rd_port; | |
612 | ||
613 | if (++card->curr_rd_port == card->max_ports) | |
614 | card->curr_rd_port = reg->start_rd_port; | |
615 | ||
616 | dev_dbg(adapter->dev, | |
617 | "data: port=%d mp_rd_bitmap=0x%08x -> 0x%08x\n", | |
618 | *port, rd_bitmap, card->mp_rd_bitmap); | |
619 | ||
5e6e3a92 BZ |
620 | return 0; |
621 | } | |
622 | ||
623 | /* | |
624 | * This function gets the write port for data. | |
625 | * | |
626 | * The current write port is returned if available and the value is | |
627 | * increased (provided it does not reach the maximum limit, in which | |
628 | * case it is reset to 1) | |
629 | */ | |
0fc0d43b | 630 | static int mwifiex_get_wr_port_data(struct mwifiex_adapter *adapter, u32 *port) |
5e6e3a92 BZ |
631 | { |
632 | struct sdio_mmc_card *card = adapter->card; | |
b60186f8 | 633 | const struct mwifiex_sdio_card_reg *reg = card->reg; |
5ac253d5 | 634 | u32 wr_bitmap = card->mp_wr_bitmap; |
5e6e3a92 | 635 | |
5ac253d5 | 636 | dev_dbg(adapter->dev, "data: mp_wr_bitmap=0x%08x\n", wr_bitmap); |
5e6e3a92 | 637 | |
c48ba040 | 638 | if (!(wr_bitmap & card->mp_data_port_mask)) { |
b60186f8 YAP |
639 | adapter->data_sent = true; |
640 | return -EBUSY; | |
b60186f8 | 641 | } |
5e6e3a92 BZ |
642 | |
643 | if (card->mp_wr_bitmap & (1 << card->curr_wr_port)) { | |
5ac253d5 | 644 | card->mp_wr_bitmap &= (u32) (~(1 << card->curr_wr_port)); |
5e6e3a92 | 645 | *port = card->curr_wr_port; |
c48ba040 | 646 | if (++card->curr_wr_port == card->mp_end_port) |
b60186f8 | 647 | card->curr_wr_port = reg->start_wr_port; |
5e6e3a92 BZ |
648 | } else { |
649 | adapter->data_sent = true; | |
650 | return -EBUSY; | |
651 | } | |
652 | ||
b60186f8 | 653 | if ((card->has_control_mask) && (*port == CTRL_PORT)) { |
5ac253d5 AK |
654 | dev_err(adapter->dev, |
655 | "invalid data port=%d cur port=%d mp_wr_bitmap=0x%08x -> 0x%08x\n", | |
5dbd326c YAP |
656 | *port, card->curr_wr_port, wr_bitmap, |
657 | card->mp_wr_bitmap); | |
5e6e3a92 BZ |
658 | return -1; |
659 | } | |
660 | ||
5ac253d5 | 661 | dev_dbg(adapter->dev, "data: port=%d mp_wr_bitmap=0x%08x -> 0x%08x\n", |
5dbd326c | 662 | *port, wr_bitmap, card->mp_wr_bitmap); |
5e6e3a92 BZ |
663 | |
664 | return 0; | |
665 | } | |
666 | ||
667 | /* | |
668 | * This function polls the card status. | |
669 | */ | |
670 | static int | |
671 | mwifiex_sdio_poll_card_status(struct mwifiex_adapter *adapter, u8 bits) | |
672 | { | |
05889f82 | 673 | struct sdio_mmc_card *card = adapter->card; |
5e6e3a92 | 674 | u32 tries; |
ab93d4ff | 675 | u8 cs; |
5e6e3a92 BZ |
676 | |
677 | for (tries = 0; tries < MAX_POLL_TRIES; tries++) { | |
05889f82 | 678 | if (mwifiex_read_reg(adapter, card->reg->poll_reg, &cs)) |
5e6e3a92 BZ |
679 | break; |
680 | else if ((cs & bits) == bits) | |
681 | return 0; | |
682 | ||
e7891ba2 | 683 | usleep_range(10, 20); |
5e6e3a92 BZ |
684 | } |
685 | ||
5dbd326c YAP |
686 | dev_err(adapter->dev, "poll card status failed, tries = %d\n", tries); |
687 | ||
5e6e3a92 BZ |
688 | return -1; |
689 | } | |
690 | ||
691 | /* | |
692 | * This function reads the firmware status. | |
693 | */ | |
694 | static int | |
695 | mwifiex_sdio_read_fw_status(struct mwifiex_adapter *adapter, u16 *dat) | |
696 | { | |
05889f82 AK |
697 | struct sdio_mmc_card *card = adapter->card; |
698 | const struct mwifiex_sdio_card_reg *reg = card->reg; | |
ab93d4ff | 699 | u8 fws0, fws1; |
5e6e3a92 | 700 | |
05889f82 | 701 | if (mwifiex_read_reg(adapter, reg->status_reg_0, &fws0)) |
5e6e3a92 BZ |
702 | return -1; |
703 | ||
05889f82 | 704 | if (mwifiex_read_reg(adapter, reg->status_reg_1, &fws1)) |
5e6e3a92 BZ |
705 | return -1; |
706 | ||
707 | *dat = (u16) ((fws1 << 8) | fws0); | |
708 | ||
709 | return 0; | |
710 | } | |
711 | ||
712 | /* | |
713 | * This function disables the host interrupt. | |
714 | * | |
715 | * The host interrupt mask is read, the disable bit is reset and | |
716 | * written back to the card host interrupt mask register. | |
717 | */ | |
232fde06 | 718 | static void mwifiex_sdio_disable_host_int(struct mwifiex_adapter *adapter) |
5e6e3a92 | 719 | { |
232fde06 DD |
720 | struct sdio_mmc_card *card = adapter->card; |
721 | struct sdio_func *func = card->func; | |
5e6e3a92 | 722 | |
232fde06 | 723 | sdio_claim_host(func); |
554a0113 | 724 | mwifiex_write_reg_locked(func, card->reg->host_int_mask_reg, 0); |
232fde06 DD |
725 | sdio_release_irq(func); |
726 | sdio_release_host(func); | |
5e6e3a92 BZ |
727 | } |
728 | ||
2cdf359a AK |
729 | /* |
730 | * This function reads the interrupt status from card. | |
731 | */ | |
732 | static void mwifiex_interrupt_status(struct mwifiex_adapter *adapter) | |
733 | { | |
734 | struct sdio_mmc_card *card = adapter->card; | |
735 | u8 sdio_ireg; | |
736 | unsigned long flags; | |
737 | ||
738 | if (mwifiex_read_data_sync(adapter, card->mp_regs, | |
739 | card->reg->max_mp_regs, | |
740 | REG_PORT | MWIFIEX_SDIO_BYTE_MODE_MASK, 0)) { | |
741 | dev_err(adapter->dev, "read mp_regs failed\n"); | |
742 | return; | |
743 | } | |
744 | ||
554a0113 | 745 | sdio_ireg = card->mp_regs[card->reg->host_int_status_reg]; |
2cdf359a AK |
746 | if (sdio_ireg) { |
747 | /* | |
748 | * DN_LD_HOST_INT_STATUS and/or UP_LD_HOST_INT_STATUS | |
749 | * For SDIO new mode CMD port interrupts | |
750 | * DN_LD_CMD_PORT_HOST_INT_STATUS and/or | |
751 | * UP_LD_CMD_PORT_HOST_INT_STATUS | |
752 | * Clear the interrupt status register | |
753 | */ | |
754 | dev_dbg(adapter->dev, "int: sdio_ireg = %#x\n", sdio_ireg); | |
755 | spin_lock_irqsave(&adapter->int_lock, flags); | |
756 | adapter->int_status |= sdio_ireg; | |
757 | spin_unlock_irqrestore(&adapter->int_lock, flags); | |
758 | } | |
759 | } | |
760 | ||
761 | /* | |
762 | * SDIO interrupt handler. | |
763 | * | |
764 | * This function reads the interrupt status from firmware and handles | |
765 | * the interrupt in current thread (ksdioirqd) right away. | |
766 | */ | |
767 | static void | |
768 | mwifiex_sdio_interrupt(struct sdio_func *func) | |
769 | { | |
770 | struct mwifiex_adapter *adapter; | |
771 | struct sdio_mmc_card *card; | |
772 | ||
773 | card = sdio_get_drvdata(func); | |
774 | if (!card || !card->adapter) { | |
775 | pr_debug("int: func=%p card=%p adapter=%p\n", | |
776 | func, card, card ? card->adapter : NULL); | |
777 | return; | |
778 | } | |
779 | adapter = card->adapter; | |
780 | ||
781 | if (!adapter->pps_uapsd_mode && adapter->ps_state == PS_STATE_SLEEP) | |
782 | adapter->ps_state = PS_STATE_AWAKE; | |
783 | ||
784 | mwifiex_interrupt_status(adapter); | |
785 | mwifiex_main_process(adapter); | |
786 | } | |
787 | ||
5e6e3a92 BZ |
788 | /* |
789 | * This function enables the host interrupt. | |
790 | * | |
791 | * The host interrupt enable mask is written to the card | |
792 | * host interrupt mask register. | |
793 | */ | |
794 | static int mwifiex_sdio_enable_host_int(struct mwifiex_adapter *adapter) | |
795 | { | |
05889f82 | 796 | struct sdio_mmc_card *card = adapter->card; |
232fde06 DD |
797 | struct sdio_func *func = card->func; |
798 | int ret; | |
799 | ||
800 | sdio_claim_host(func); | |
801 | ||
802 | /* Request the SDIO IRQ */ | |
803 | ret = sdio_claim_irq(func, mwifiex_sdio_interrupt); | |
804 | if (ret) { | |
805 | dev_err(adapter->dev, "claim irq failed: ret=%d\n", ret); | |
806 | goto out; | |
807 | } | |
05889f82 | 808 | |
5e6e3a92 | 809 | /* Simply write the mask to the register */ |
554a0113 | 810 | ret = mwifiex_write_reg_locked(func, card->reg->host_int_mask_reg, |
232fde06 DD |
811 | card->reg->host_int_enable); |
812 | if (ret) { | |
5e6e3a92 | 813 | dev_err(adapter->dev, "enable host interrupt failed\n"); |
232fde06 | 814 | sdio_release_irq(func); |
5e6e3a92 | 815 | } |
232fde06 DD |
816 | |
817 | out: | |
818 | sdio_release_host(func); | |
819 | return ret; | |
5e6e3a92 BZ |
820 | } |
821 | ||
822 | /* | |
823 | * This function sends a data buffer to the card. | |
824 | */ | |
825 | static int mwifiex_sdio_card_to_host(struct mwifiex_adapter *adapter, | |
826 | u32 *type, u8 *buffer, | |
827 | u32 npayload, u32 ioport) | |
828 | { | |
270e58e8 | 829 | int ret; |
5e6e3a92 BZ |
830 | u32 nb; |
831 | ||
832 | if (!buffer) { | |
833 | dev_err(adapter->dev, "%s: buffer is NULL\n", __func__); | |
834 | return -1; | |
835 | } | |
836 | ||
572e8f3e | 837 | ret = mwifiex_read_data_sync(adapter, buffer, npayload, ioport, 1); |
5e6e3a92 BZ |
838 | |
839 | if (ret) { | |
840 | dev_err(adapter->dev, "%s: read iomem failed: %d\n", __func__, | |
5dbd326c | 841 | ret); |
5e6e3a92 BZ |
842 | return -1; |
843 | } | |
844 | ||
845 | nb = le16_to_cpu(*(__le16 *) (buffer)); | |
846 | if (nb > npayload) { | |
5dbd326c YAP |
847 | dev_err(adapter->dev, "%s: invalid packet, nb=%d npayload=%d\n", |
848 | __func__, nb, npayload); | |
5e6e3a92 BZ |
849 | return -1; |
850 | } | |
851 | ||
852 | *type = le16_to_cpu(*(__le16 *) (buffer + 2)); | |
853 | ||
854 | return ret; | |
855 | } | |
856 | ||
857 | /* | |
858 | * This function downloads the firmware to the card. | |
859 | * | |
860 | * Firmware is downloaded to the card in blocks. Every block download | |
861 | * is tested for CRC errors, and retried a number of times before | |
862 | * returning failure. | |
863 | */ | |
864 | static int mwifiex_prog_fw_w_helper(struct mwifiex_adapter *adapter, | |
865 | struct mwifiex_fw_image *fw) | |
866 | { | |
05889f82 AK |
867 | struct sdio_mmc_card *card = adapter->card; |
868 | const struct mwifiex_sdio_card_reg *reg = card->reg; | |
270e58e8 | 869 | int ret; |
5e6e3a92 BZ |
870 | u8 *firmware = fw->fw_buf; |
871 | u32 firmware_len = fw->fw_len; | |
872 | u32 offset = 0; | |
ab93d4ff | 873 | u8 base0, base1; |
5e6e3a92 BZ |
874 | u8 *fwbuf; |
875 | u16 len = 0; | |
270e58e8 | 876 | u32 txlen, tx_blocks = 0, tries; |
5e6e3a92 BZ |
877 | u32 i = 0; |
878 | ||
879 | if (!firmware_len) { | |
5dbd326c YAP |
880 | dev_err(adapter->dev, |
881 | "firmware image not found! Terminating download\n"); | |
5e6e3a92 BZ |
882 | return -1; |
883 | } | |
884 | ||
885 | dev_dbg(adapter->dev, "info: downloading FW image (%d bytes)\n", | |
5dbd326c | 886 | firmware_len); |
5e6e3a92 BZ |
887 | |
888 | /* Assume that the allocated buffer is 8-byte aligned */ | |
889 | fwbuf = kzalloc(MWIFIEX_UPLD_SIZE, GFP_KERNEL); | |
0d2e7a5c | 890 | if (!fwbuf) |
b53575ec | 891 | return -ENOMEM; |
5e6e3a92 BZ |
892 | |
893 | /* Perform firmware data transfer */ | |
894 | do { | |
895 | /* The host polls for the DN_LD_CARD_RDY and CARD_IO_READY | |
896 | bits */ | |
897 | ret = mwifiex_sdio_poll_card_status(adapter, CARD_IO_READY | | |
898 | DN_LD_CARD_RDY); | |
899 | if (ret) { | |
900 | dev_err(adapter->dev, "FW download with helper:" | |
5dbd326c | 901 | " poll status timeout @ %d\n", offset); |
5e6e3a92 BZ |
902 | goto done; |
903 | } | |
904 | ||
905 | /* More data? */ | |
906 | if (offset >= firmware_len) | |
907 | break; | |
908 | ||
909 | for (tries = 0; tries < MAX_POLL_TRIES; tries++) { | |
05889f82 | 910 | ret = mwifiex_read_reg(adapter, reg->base_0_reg, |
5e6e3a92 BZ |
911 | &base0); |
912 | if (ret) { | |
5dbd326c YAP |
913 | dev_err(adapter->dev, |
914 | "dev BASE0 register read failed: " | |
915 | "base0=%#04X(%d). Terminating dnld\n", | |
916 | base0, base0); | |
5e6e3a92 BZ |
917 | goto done; |
918 | } | |
05889f82 | 919 | ret = mwifiex_read_reg(adapter, reg->base_1_reg, |
5e6e3a92 BZ |
920 | &base1); |
921 | if (ret) { | |
5dbd326c YAP |
922 | dev_err(adapter->dev, |
923 | "dev BASE1 register read failed: " | |
924 | "base1=%#04X(%d). Terminating dnld\n", | |
925 | base1, base1); | |
5e6e3a92 BZ |
926 | goto done; |
927 | } | |
928 | len = (u16) (((base1 & 0xff) << 8) | (base0 & 0xff)); | |
929 | ||
930 | if (len) | |
931 | break; | |
932 | ||
e7891ba2 | 933 | usleep_range(10, 20); |
5e6e3a92 BZ |
934 | } |
935 | ||
936 | if (!len) { | |
937 | break; | |
938 | } else if (len > MWIFIEX_UPLD_SIZE) { | |
5dbd326c YAP |
939 | dev_err(adapter->dev, |
940 | "FW dnld failed @ %d, invalid length %d\n", | |
941 | offset, len); | |
5e6e3a92 BZ |
942 | ret = -1; |
943 | goto done; | |
944 | } | |
945 | ||
946 | txlen = len; | |
947 | ||
948 | if (len & BIT(0)) { | |
949 | i++; | |
950 | if (i > MAX_WRITE_IOMEM_RETRY) { | |
5dbd326c YAP |
951 | dev_err(adapter->dev, |
952 | "FW dnld failed @ %d, over max retry\n", | |
953 | offset); | |
5e6e3a92 BZ |
954 | ret = -1; |
955 | goto done; | |
956 | } | |
957 | dev_err(adapter->dev, "CRC indicated by the helper:" | |
5dbd326c | 958 | " len = 0x%04X, txlen = %d\n", len, txlen); |
5e6e3a92 BZ |
959 | len &= ~BIT(0); |
960 | /* Setting this to 0 to resend from same offset */ | |
961 | txlen = 0; | |
962 | } else { | |
963 | i = 0; | |
964 | ||
965 | /* Set blocksize to transfer - checking for last | |
966 | block */ | |
967 | if (firmware_len - offset < txlen) | |
968 | txlen = firmware_len - offset; | |
969 | ||
5dbd326c YAP |
970 | tx_blocks = (txlen + MWIFIEX_SDIO_BLOCK_SIZE - 1) |
971 | / MWIFIEX_SDIO_BLOCK_SIZE; | |
5e6e3a92 BZ |
972 | |
973 | /* Copy payload to buffer */ | |
974 | memmove(fwbuf, &firmware[offset], txlen); | |
975 | } | |
976 | ||
977 | ret = mwifiex_write_data_sync(adapter, fwbuf, tx_blocks * | |
978 | MWIFIEX_SDIO_BLOCK_SIZE, | |
572e8f3e | 979 | adapter->ioport); |
5e6e3a92 | 980 | if (ret) { |
5dbd326c YAP |
981 | dev_err(adapter->dev, |
982 | "FW download, write iomem (%d) failed @ %d\n", | |
983 | i, offset); | |
5e6e3a92 BZ |
984 | if (mwifiex_write_reg(adapter, CONFIGURATION_REG, 0x04)) |
985 | dev_err(adapter->dev, "write CFG reg failed\n"); | |
986 | ||
987 | ret = -1; | |
988 | goto done; | |
989 | } | |
990 | ||
991 | offset += txlen; | |
992 | } while (true); | |
993 | ||
ca5b20e6 AK |
994 | dev_notice(adapter->dev, |
995 | "info: FW download over, size %d bytes\n", offset); | |
5e6e3a92 BZ |
996 | |
997 | ret = 0; | |
998 | done: | |
999 | kfree(fwbuf); | |
1000 | return ret; | |
1001 | } | |
1002 | ||
1003 | /* | |
1004 | * This function checks the firmware status in card. | |
1005 | * | |
1006 | * The winner interface is also determined by this function. | |
1007 | */ | |
1008 | static int mwifiex_check_fw_status(struct mwifiex_adapter *adapter, | |
d930faee | 1009 | u32 poll_num) |
5e6e3a92 | 1010 | { |
05889f82 | 1011 | struct sdio_mmc_card *card = adapter->card; |
5e6e3a92 BZ |
1012 | int ret = 0; |
1013 | u16 firmware_stat; | |
1014 | u32 tries; | |
ab93d4ff | 1015 | u8 winner_status; |
5e6e3a92 BZ |
1016 | |
1017 | /* Wait for firmware initialization event */ | |
1018 | for (tries = 0; tries < poll_num; tries++) { | |
1019 | ret = mwifiex_sdio_read_fw_status(adapter, &firmware_stat); | |
1020 | if (ret) | |
1021 | continue; | |
d930faee | 1022 | if (firmware_stat == FIRMWARE_READY_SDIO) { |
5e6e3a92 BZ |
1023 | ret = 0; |
1024 | break; | |
1025 | } else { | |
a76b20e5 | 1026 | msleep(100); |
5e6e3a92 BZ |
1027 | ret = -1; |
1028 | } | |
1029 | } | |
1030 | ||
d930faee | 1031 | if (ret) { |
5e6e3a92 | 1032 | if (mwifiex_read_reg |
05889f82 | 1033 | (adapter, card->reg->status_reg_0, &winner_status)) |
5e6e3a92 BZ |
1034 | winner_status = 0; |
1035 | ||
1036 | if (winner_status) | |
d930faee | 1037 | adapter->winner = 0; |
5e6e3a92 | 1038 | else |
d930faee | 1039 | adapter->winner = 1; |
5e6e3a92 BZ |
1040 | } |
1041 | return ret; | |
1042 | } | |
1043 | ||
5e6e3a92 BZ |
1044 | /* |
1045 | * This function decodes a received packet. | |
1046 | * | |
1047 | * Based on the type, the packet is treated as either a data, or | |
1048 | * a command response, or an event, and the correct handler | |
1049 | * function is invoked. | |
1050 | */ | |
1051 | static int mwifiex_decode_rx_packet(struct mwifiex_adapter *adapter, | |
1052 | struct sk_buff *skb, u32 upld_typ) | |
1053 | { | |
1054 | u8 *cmd_buf; | |
d03b4aa7 AP |
1055 | __le16 *curr_ptr = (__le16 *)skb->data; |
1056 | u16 pkt_len = le16_to_cpu(*curr_ptr); | |
5e6e3a92 | 1057 | |
d03b4aa7 | 1058 | skb_trim(skb, pkt_len); |
5e6e3a92 BZ |
1059 | skb_pull(skb, INTF_HEADER_LEN); |
1060 | ||
1061 | switch (upld_typ) { | |
1062 | case MWIFIEX_TYPE_DATA: | |
1063 | dev_dbg(adapter->dev, "info: --- Rx: Data packet ---\n"); | |
6e251174 | 1064 | if (adapter->rx_work_enabled) { |
6e251174 | 1065 | skb_queue_tail(&adapter->rx_data_q, skb); |
6e251174 AP |
1066 | adapter->data_received = true; |
1067 | atomic_inc(&adapter->rx_pending); | |
1068 | } else { | |
1069 | mwifiex_handle_rx_packet(adapter, skb); | |
1070 | } | |
5e6e3a92 BZ |
1071 | break; |
1072 | ||
1073 | case MWIFIEX_TYPE_CMD: | |
1074 | dev_dbg(adapter->dev, "info: --- Rx: Cmd Response ---\n"); | |
1075 | /* take care of curr_cmd = NULL case */ | |
1076 | if (!adapter->curr_cmd) { | |
1077 | cmd_buf = adapter->upld_buf; | |
1078 | ||
1079 | if (adapter->ps_state == PS_STATE_SLEEP_CFM) | |
1080 | mwifiex_process_sleep_confirm_resp(adapter, | |
5dbd326c YAP |
1081 | skb->data, |
1082 | skb->len); | |
5e6e3a92 | 1083 | |
5dbd326c YAP |
1084 | memcpy(cmd_buf, skb->data, |
1085 | min_t(u32, MWIFIEX_SIZE_OF_CMD_BUFFER, | |
1086 | skb->len)); | |
5e6e3a92 BZ |
1087 | |
1088 | dev_kfree_skb_any(skb); | |
1089 | } else { | |
1090 | adapter->cmd_resp_received = true; | |
1091 | adapter->curr_cmd->resp_skb = skb; | |
1092 | } | |
1093 | break; | |
1094 | ||
1095 | case MWIFIEX_TYPE_EVENT: | |
1096 | dev_dbg(adapter->dev, "info: --- Rx: Event ---\n"); | |
cfcd926e | 1097 | adapter->event_cause = le32_to_cpu(*(__le32 *) skb->data); |
5e6e3a92 | 1098 | |
5e6e3a92 | 1099 | if ((skb->len > 0) && (skb->len < MAX_EVENT_SIZE)) |
e80c81dc AK |
1100 | memcpy(adapter->event_body, |
1101 | skb->data + MWIFIEX_EVENT_HEADER_LEN, | |
1102 | skb->len); | |
5e6e3a92 BZ |
1103 | |
1104 | /* event cause has been saved to adapter->event_cause */ | |
1105 | adapter->event_received = true; | |
1106 | adapter->event_skb = skb; | |
1107 | ||
1108 | break; | |
1109 | ||
1110 | default: | |
1111 | dev_err(adapter->dev, "unknown upload type %#x\n", upld_typ); | |
1112 | dev_kfree_skb_any(skb); | |
1113 | break; | |
1114 | } | |
1115 | ||
1116 | return 0; | |
1117 | } | |
1118 | ||
1119 | /* | |
1120 | * This function transfers received packets from card to driver, performing | |
1121 | * aggregation if required. | |
1122 | * | |
1123 | * For data received on control port, or if aggregation is disabled, the | |
1124 | * received buffers are uploaded as separate packets. However, if aggregation | |
1125 | * is enabled and required, the buffers are copied onto an aggregation buffer, | |
1126 | * provided there is space left, processed and finally uploaded. | |
1127 | */ | |
1128 | static int mwifiex_sdio_card_to_host_mp_aggr(struct mwifiex_adapter *adapter, | |
1129 | struct sk_buff *skb, u8 port) | |
1130 | { | |
1131 | struct sdio_mmc_card *card = adapter->card; | |
1132 | s32 f_do_rx_aggr = 0; | |
1133 | s32 f_do_rx_cur = 0; | |
1134 | s32 f_aggr_cur = 0; | |
1135 | struct sk_buff *skb_deaggr; | |
270e58e8 | 1136 | u32 pind; |
0fc0d43b | 1137 | u32 pkt_len, pkt_type, mport; |
5e6e3a92 BZ |
1138 | u8 *curr_ptr; |
1139 | u32 rx_len = skb->len; | |
1140 | ||
b60186f8 | 1141 | if ((card->has_control_mask) && (port == CTRL_PORT)) { |
5e6e3a92 BZ |
1142 | /* Read the command Resp without aggr */ |
1143 | dev_dbg(adapter->dev, "info: %s: no aggregation for cmd " | |
5dbd326c | 1144 | "response\n", __func__); |
5e6e3a92 BZ |
1145 | |
1146 | f_do_rx_cur = 1; | |
1147 | goto rx_curr_single; | |
1148 | } | |
1149 | ||
1150 | if (!card->mpa_rx.enabled) { | |
1151 | dev_dbg(adapter->dev, "info: %s: rx aggregation disabled\n", | |
5dbd326c | 1152 | __func__); |
5e6e3a92 BZ |
1153 | |
1154 | f_do_rx_cur = 1; | |
1155 | goto rx_curr_single; | |
1156 | } | |
1157 | ||
b60186f8 YAP |
1158 | if ((!card->has_control_mask && (card->mp_rd_bitmap & |
1159 | card->reg->data_port_mask)) || | |
1160 | (card->has_control_mask && (card->mp_rd_bitmap & | |
1161 | (~((u32) CTRL_PORT_MASK))))) { | |
5e6e3a92 BZ |
1162 | /* Some more data RX pending */ |
1163 | dev_dbg(adapter->dev, "info: %s: not last packet\n", __func__); | |
1164 | ||
1165 | if (MP_RX_AGGR_IN_PROGRESS(card)) { | |
1166 | if (MP_RX_AGGR_BUF_HAS_ROOM(card, skb->len)) { | |
1167 | f_aggr_cur = 1; | |
1168 | } else { | |
1169 | /* No room in Aggr buf, do rx aggr now */ | |
1170 | f_do_rx_aggr = 1; | |
1171 | f_do_rx_cur = 1; | |
1172 | } | |
1173 | } else { | |
1174 | /* Rx aggr not in progress */ | |
1175 | f_aggr_cur = 1; | |
1176 | } | |
1177 | ||
1178 | } else { | |
1179 | /* No more data RX pending */ | |
1180 | dev_dbg(adapter->dev, "info: %s: last packet\n", __func__); | |
1181 | ||
1182 | if (MP_RX_AGGR_IN_PROGRESS(card)) { | |
1183 | f_do_rx_aggr = 1; | |
1184 | if (MP_RX_AGGR_BUF_HAS_ROOM(card, skb->len)) | |
1185 | f_aggr_cur = 1; | |
1186 | else | |
1187 | /* No room in Aggr buf, do rx aggr now */ | |
1188 | f_do_rx_cur = 1; | |
1189 | } else { | |
1190 | f_do_rx_cur = 1; | |
1191 | } | |
1192 | } | |
1193 | ||
1194 | if (f_aggr_cur) { | |
1195 | dev_dbg(adapter->dev, "info: current packet aggregation\n"); | |
1196 | /* Curr pkt can be aggregated */ | |
c23b7c8f | 1197 | mp_rx_aggr_setup(card, skb, port); |
5e6e3a92 BZ |
1198 | |
1199 | if (MP_RX_AGGR_PKT_LIMIT_REACHED(card) || | |
c23b7c8f | 1200 | mp_rx_aggr_port_limit_reached(card)) { |
5e6e3a92 | 1201 | dev_dbg(adapter->dev, "info: %s: aggregated packet " |
5dbd326c | 1202 | "limit reached\n", __func__); |
5e6e3a92 BZ |
1203 | /* No more pkts allowed in Aggr buf, rx it */ |
1204 | f_do_rx_aggr = 1; | |
1205 | } | |
1206 | } | |
1207 | ||
1208 | if (f_do_rx_aggr) { | |
1209 | /* do aggr RX now */ | |
1210 | dev_dbg(adapter->dev, "info: do_rx_aggr: num of packets: %d\n", | |
5dbd326c | 1211 | card->mpa_rx.pkt_cnt); |
5e6e3a92 | 1212 | |
b60186f8 YAP |
1213 | if (card->supports_sdio_new_mode) { |
1214 | int i; | |
1215 | u32 port_count; | |
1216 | ||
1217 | for (i = 0, port_count = 0; i < card->max_ports; i++) | |
1218 | if (card->mpa_rx.ports & BIT(i)) | |
1219 | port_count++; | |
1220 | ||
1221 | /* Reading data from "start_port + 0" to "start_port + | |
1222 | * port_count -1", so decrease the count by 1 | |
1223 | */ | |
1224 | port_count--; | |
1225 | mport = (adapter->ioport | SDIO_MPA_ADDR_BASE | | |
1226 | (port_count << 8)) + card->mpa_rx.start_port; | |
1227 | } else { | |
1228 | mport = (adapter->ioport | SDIO_MPA_ADDR_BASE | | |
1229 | (card->mpa_rx.ports << 4)) + | |
1230 | card->mpa_rx.start_port; | |
1231 | } | |
0fc0d43b | 1232 | |
5e6e3a92 | 1233 | if (mwifiex_read_data_sync(adapter, card->mpa_rx.buf, |
0fc0d43b | 1234 | card->mpa_rx.buf_len, mport, 1)) |
17a60b48 | 1235 | goto error; |
5e6e3a92 BZ |
1236 | |
1237 | curr_ptr = card->mpa_rx.buf; | |
1238 | ||
1239 | for (pind = 0; pind < card->mpa_rx.pkt_cnt; pind++) { | |
1240 | ||
1241 | /* get curr PKT len & type */ | |
cfcd926e TW |
1242 | pkt_len = le16_to_cpu(*(__le16 *) &curr_ptr[0]); |
1243 | pkt_type = le16_to_cpu(*(__le16 *) &curr_ptr[2]); | |
5e6e3a92 BZ |
1244 | |
1245 | /* copy pkt to deaggr buf */ | |
1246 | skb_deaggr = card->mpa_rx.skb_arr[pind]; | |
1247 | ||
1248 | if ((pkt_type == MWIFIEX_TYPE_DATA) && (pkt_len <= | |
1249 | card->mpa_rx.len_arr[pind])) { | |
1250 | ||
1251 | memcpy(skb_deaggr->data, curr_ptr, pkt_len); | |
1252 | ||
1253 | skb_trim(skb_deaggr, pkt_len); | |
1254 | ||
1255 | /* Process de-aggr packet */ | |
1256 | mwifiex_decode_rx_packet(adapter, skb_deaggr, | |
1257 | pkt_type); | |
1258 | } else { | |
1259 | dev_err(adapter->dev, "wrong aggr pkt:" | |
1260 | " type=%d len=%d max_len=%d\n", | |
1261 | pkt_type, pkt_len, | |
1262 | card->mpa_rx.len_arr[pind]); | |
1263 | dev_kfree_skb_any(skb_deaggr); | |
1264 | } | |
1265 | curr_ptr += card->mpa_rx.len_arr[pind]; | |
1266 | } | |
1267 | MP_RX_AGGR_BUF_RESET(card); | |
1268 | } | |
1269 | ||
1270 | rx_curr_single: | |
1271 | if (f_do_rx_cur) { | |
1272 | dev_dbg(adapter->dev, "info: RX: port: %d, rx_len: %d\n", | |
1273 | port, rx_len); | |
1274 | ||
1275 | if (mwifiex_sdio_card_to_host(adapter, &pkt_type, | |
1276 | skb->data, skb->len, | |
1277 | adapter->ioport + port)) | |
17a60b48 | 1278 | goto error; |
5e6e3a92 BZ |
1279 | |
1280 | mwifiex_decode_rx_packet(adapter, skb, pkt_type); | |
1281 | } | |
1282 | ||
1283 | return 0; | |
17a60b48 AP |
1284 | |
1285 | error: | |
1286 | if (MP_RX_AGGR_IN_PROGRESS(card)) { | |
1287 | /* Multiport-aggregation transfer failed - cleanup */ | |
1288 | for (pind = 0; pind < card->mpa_rx.pkt_cnt; pind++) { | |
1289 | /* copy pkt to deaggr buf */ | |
1290 | skb_deaggr = card->mpa_rx.skb_arr[pind]; | |
1291 | dev_kfree_skb_any(skb_deaggr); | |
1292 | } | |
1293 | MP_RX_AGGR_BUF_RESET(card); | |
1294 | } | |
1295 | ||
1296 | if (f_do_rx_cur) | |
1297 | /* Single transfer pending. Free curr buff also */ | |
1298 | dev_kfree_skb_any(skb); | |
1299 | ||
1300 | return -1; | |
5e6e3a92 BZ |
1301 | } |
1302 | ||
1303 | /* | |
1304 | * This function checks the current interrupt status. | |
1305 | * | |
1306 | * The following interrupts are checked and handled by this function - | |
1307 | * - Data sent | |
1308 | * - Command sent | |
1309 | * - Packets received | |
1310 | * | |
1311 | * Since the firmware does not generate download ready interrupt if the | |
1312 | * port updated is command port only, command sent interrupt checking | |
1313 | * should be done manually, and for every SDIO interrupt. | |
1314 | * | |
1315 | * In case of Rx packets received, the packets are uploaded from card to | |
1316 | * host and processed accordingly. | |
1317 | */ | |
1318 | static int mwifiex_process_int_status(struct mwifiex_adapter *adapter) | |
1319 | { | |
1320 | struct sdio_mmc_card *card = adapter->card; | |
05889f82 | 1321 | const struct mwifiex_sdio_card_reg *reg = card->reg; |
5e6e3a92 BZ |
1322 | int ret = 0; |
1323 | u8 sdio_ireg; | |
270e58e8 | 1324 | struct sk_buff *skb; |
5e6e3a92 BZ |
1325 | u8 port = CTRL_PORT; |
1326 | u32 len_reg_l, len_reg_u; | |
1327 | u32 rx_blocks; | |
1328 | u16 rx_len; | |
1329 | unsigned long flags; | |
b60186f8 YAP |
1330 | u32 bitmap; |
1331 | u8 cr; | |
5e6e3a92 BZ |
1332 | |
1333 | spin_lock_irqsave(&adapter->int_lock, flags); | |
1334 | sdio_ireg = adapter->int_status; | |
1335 | adapter->int_status = 0; | |
1336 | spin_unlock_irqrestore(&adapter->int_lock, flags); | |
1337 | ||
1338 | if (!sdio_ireg) | |
1339 | return ret; | |
1340 | ||
b60186f8 YAP |
1341 | /* Following interrupt is only for SDIO new mode */ |
1342 | if (sdio_ireg & DN_LD_CMD_PORT_HOST_INT_STATUS && adapter->cmd_sent) | |
1343 | adapter->cmd_sent = false; | |
1344 | ||
1345 | /* Following interrupt is only for SDIO new mode */ | |
1346 | if (sdio_ireg & UP_LD_CMD_PORT_HOST_INT_STATUS) { | |
1347 | u32 pkt_type; | |
1348 | ||
1349 | /* read the len of control packet */ | |
554a0113 AP |
1350 | rx_len = card->mp_regs[reg->cmd_rd_len_1] << 8; |
1351 | rx_len |= (u16)card->mp_regs[reg->cmd_rd_len_0]; | |
b60186f8 YAP |
1352 | rx_blocks = DIV_ROUND_UP(rx_len, MWIFIEX_SDIO_BLOCK_SIZE); |
1353 | if (rx_len <= INTF_HEADER_LEN || | |
1354 | (rx_blocks * MWIFIEX_SDIO_BLOCK_SIZE) > | |
1355 | MWIFIEX_RX_DATA_BUF_SIZE) | |
1356 | return -1; | |
1357 | rx_len = (u16) (rx_blocks * MWIFIEX_SDIO_BLOCK_SIZE); | |
1358 | ||
1359 | skb = dev_alloc_skb(rx_len); | |
1360 | if (!skb) | |
1361 | return -1; | |
1362 | ||
1363 | skb_put(skb, rx_len); | |
1364 | ||
1365 | if (mwifiex_sdio_card_to_host(adapter, &pkt_type, skb->data, | |
1366 | skb->len, adapter->ioport | | |
1367 | CMD_PORT_SLCT)) { | |
1368 | dev_err(adapter->dev, | |
1369 | "%s: failed to card_to_host", __func__); | |
1370 | dev_kfree_skb_any(skb); | |
1371 | goto term_cmd; | |
1372 | } | |
1373 | ||
1374 | if ((pkt_type != MWIFIEX_TYPE_CMD) && | |
1375 | (pkt_type != MWIFIEX_TYPE_EVENT)) | |
1376 | dev_err(adapter->dev, | |
1377 | "%s:Received wrong packet on cmd port", | |
1378 | __func__); | |
1379 | ||
1380 | mwifiex_decode_rx_packet(adapter, skb, pkt_type); | |
1381 | } | |
1382 | ||
5e6e3a92 | 1383 | if (sdio_ireg & DN_LD_HOST_INT_STATUS) { |
b60186f8 YAP |
1384 | bitmap = (u32) card->mp_regs[reg->wr_bitmap_l]; |
1385 | bitmap |= ((u32) card->mp_regs[reg->wr_bitmap_u]) << 8; | |
1386 | if (card->supports_sdio_new_mode) { | |
1387 | bitmap |= | |
1388 | ((u32) card->mp_regs[reg->wr_bitmap_1l]) << 16; | |
1389 | bitmap |= | |
1390 | ((u32) card->mp_regs[reg->wr_bitmap_1u]) << 24; | |
1391 | } | |
1392 | card->mp_wr_bitmap = bitmap; | |
1393 | ||
1394 | dev_dbg(adapter->dev, "int: DNLD: wr_bitmap=0x%x\n", | |
5dbd326c | 1395 | card->mp_wr_bitmap); |
5e6e3a92 BZ |
1396 | if (adapter->data_sent && |
1397 | (card->mp_wr_bitmap & card->mp_data_port_mask)) { | |
1398 | dev_dbg(adapter->dev, | |
1399 | "info: <--- Tx DONE Interrupt --->\n"); | |
1400 | adapter->data_sent = false; | |
1401 | } | |
1402 | } | |
1403 | ||
1404 | /* As firmware will not generate download ready interrupt if the port | |
1405 | updated is command port only, cmd_sent should be done for any SDIO | |
1406 | interrupt. */ | |
b60186f8 | 1407 | if (card->has_control_mask && adapter->cmd_sent) { |
5e6e3a92 BZ |
1408 | /* Check if firmware has attach buffer at command port and |
1409 | update just that in wr_bit_map. */ | |
1410 | card->mp_wr_bitmap |= | |
05889f82 | 1411 | (u32) card->mp_regs[reg->wr_bitmap_l] & CTRL_PORT_MASK; |
5e6e3a92 BZ |
1412 | if (card->mp_wr_bitmap & CTRL_PORT_MASK) |
1413 | adapter->cmd_sent = false; | |
1414 | } | |
1415 | ||
1416 | dev_dbg(adapter->dev, "info: cmd_sent=%d data_sent=%d\n", | |
5dbd326c | 1417 | adapter->cmd_sent, adapter->data_sent); |
5e6e3a92 | 1418 | if (sdio_ireg & UP_LD_HOST_INT_STATUS) { |
b60186f8 YAP |
1419 | bitmap = (u32) card->mp_regs[reg->rd_bitmap_l]; |
1420 | bitmap |= ((u32) card->mp_regs[reg->rd_bitmap_u]) << 8; | |
1421 | if (card->supports_sdio_new_mode) { | |
1422 | bitmap |= | |
1423 | ((u32) card->mp_regs[reg->rd_bitmap_1l]) << 16; | |
1424 | bitmap |= | |
1425 | ((u32) card->mp_regs[reg->rd_bitmap_1u]) << 24; | |
1426 | } | |
1427 | card->mp_rd_bitmap = bitmap; | |
1428 | dev_dbg(adapter->dev, "int: UPLD: rd_bitmap=0x%x\n", | |
5dbd326c | 1429 | card->mp_rd_bitmap); |
5e6e3a92 BZ |
1430 | |
1431 | while (true) { | |
1432 | ret = mwifiex_get_rd_port(adapter, &port); | |
1433 | if (ret) { | |
1434 | dev_dbg(adapter->dev, | |
1435 | "info: no more rd_port available\n"); | |
1436 | break; | |
1437 | } | |
05889f82 AK |
1438 | len_reg_l = reg->rd_len_p0_l + (port << 1); |
1439 | len_reg_u = reg->rd_len_p0_u + (port << 1); | |
5e6e3a92 BZ |
1440 | rx_len = ((u16) card->mp_regs[len_reg_u]) << 8; |
1441 | rx_len |= (u16) card->mp_regs[len_reg_l]; | |
1442 | dev_dbg(adapter->dev, "info: RX: port=%d rx_len=%u\n", | |
5dbd326c | 1443 | port, rx_len); |
5e6e3a92 BZ |
1444 | rx_blocks = |
1445 | (rx_len + MWIFIEX_SDIO_BLOCK_SIZE - | |
1446 | 1) / MWIFIEX_SDIO_BLOCK_SIZE; | |
5dbd326c YAP |
1447 | if (rx_len <= INTF_HEADER_LEN || |
1448 | (rx_blocks * MWIFIEX_SDIO_BLOCK_SIZE) > | |
1449 | MWIFIEX_RX_DATA_BUF_SIZE) { | |
5e6e3a92 | 1450 | dev_err(adapter->dev, "invalid rx_len=%d\n", |
5dbd326c | 1451 | rx_len); |
5e6e3a92 BZ |
1452 | return -1; |
1453 | } | |
1454 | rx_len = (u16) (rx_blocks * MWIFIEX_SDIO_BLOCK_SIZE); | |
1455 | ||
1456 | skb = dev_alloc_skb(rx_len); | |
1457 | ||
1458 | if (!skb) { | |
1459 | dev_err(adapter->dev, "%s: failed to alloc skb", | |
5dbd326c | 1460 | __func__); |
5e6e3a92 BZ |
1461 | return -1; |
1462 | } | |
1463 | ||
1464 | skb_put(skb, rx_len); | |
1465 | ||
1466 | dev_dbg(adapter->dev, "info: rx_len = %d skb->len = %d\n", | |
5dbd326c | 1467 | rx_len, skb->len); |
5e6e3a92 BZ |
1468 | |
1469 | if (mwifiex_sdio_card_to_host_mp_aggr(adapter, skb, | |
1470 | port)) { | |
5e6e3a92 | 1471 | dev_err(adapter->dev, "card_to_host_mpa failed:" |
5dbd326c | 1472 | " int status=%#x\n", sdio_ireg); |
b60186f8 | 1473 | goto term_cmd; |
5e6e3a92 BZ |
1474 | } |
1475 | } | |
1476 | } | |
1477 | ||
1478 | return 0; | |
b60186f8 YAP |
1479 | |
1480 | term_cmd: | |
1481 | /* terminate cmd */ | |
1482 | if (mwifiex_read_reg(adapter, CONFIGURATION_REG, &cr)) | |
1483 | dev_err(adapter->dev, "read CFG reg failed\n"); | |
1484 | else | |
1485 | dev_dbg(adapter->dev, "info: CFG reg val = %d\n", cr); | |
1486 | ||
1487 | if (mwifiex_write_reg(adapter, CONFIGURATION_REG, (cr | 0x04))) | |
1488 | dev_err(adapter->dev, "write CFG reg failed\n"); | |
1489 | else | |
1490 | dev_dbg(adapter->dev, "info: write success\n"); | |
1491 | ||
1492 | if (mwifiex_read_reg(adapter, CONFIGURATION_REG, &cr)) | |
1493 | dev_err(adapter->dev, "read CFG reg failed\n"); | |
1494 | else | |
1495 | dev_dbg(adapter->dev, "info: CFG reg val =%x\n", cr); | |
1496 | ||
1497 | return -1; | |
5e6e3a92 BZ |
1498 | } |
1499 | ||
1500 | /* | |
1501 | * This function aggregates transmission buffers in driver and downloads | |
1502 | * the aggregated packet to card. | |
1503 | * | |
1504 | * The individual packets are aggregated by copying into an aggregation | |
1505 | * buffer and then downloaded to the card. Previous unsent packets in the | |
1506 | * aggregation buffer are pre-copied first before new packets are added. | |
1507 | * Aggregation is done till there is space left in the aggregation buffer, | |
1508 | * or till new packets are available. | |
1509 | * | |
1510 | * The function will only download the packet to the card when aggregation | |
1511 | * stops, otherwise it will just aggregate the packet in aggregation buffer | |
1512 | * and return. | |
1513 | */ | |
1514 | static int mwifiex_host_to_card_mp_aggr(struct mwifiex_adapter *adapter, | |
0fc0d43b | 1515 | u8 *payload, u32 pkt_len, u32 port, |
5e6e3a92 BZ |
1516 | u32 next_pkt_len) |
1517 | { | |
1518 | struct sdio_mmc_card *card = adapter->card; | |
1519 | int ret = 0; | |
1520 | s32 f_send_aggr_buf = 0; | |
1521 | s32 f_send_cur_buf = 0; | |
1522 | s32 f_precopy_cur_buf = 0; | |
1523 | s32 f_postcopy_cur_buf = 0; | |
0fc0d43b | 1524 | u32 mport; |
5e6e3a92 | 1525 | |
b60186f8 YAP |
1526 | if (!card->mpa_tx.enabled || |
1527 | (card->has_control_mask && (port == CTRL_PORT)) || | |
1528 | (card->supports_sdio_new_mode && (port == CMD_PORT_SLCT))) { | |
5e6e3a92 | 1529 | dev_dbg(adapter->dev, "info: %s: tx aggregation disabled\n", |
5dbd326c | 1530 | __func__); |
5e6e3a92 BZ |
1531 | |
1532 | f_send_cur_buf = 1; | |
1533 | goto tx_curr_single; | |
1534 | } | |
1535 | ||
1536 | if (next_pkt_len) { | |
1537 | /* More pkt in TX queue */ | |
1538 | dev_dbg(adapter->dev, "info: %s: more packets in queue.\n", | |
5dbd326c | 1539 | __func__); |
5e6e3a92 BZ |
1540 | |
1541 | if (MP_TX_AGGR_IN_PROGRESS(card)) { | |
c7346c32 | 1542 | if (MP_TX_AGGR_BUF_HAS_ROOM(card, pkt_len)) { |
5e6e3a92 BZ |
1543 | f_precopy_cur_buf = 1; |
1544 | ||
1545 | if (!(card->mp_wr_bitmap & | |
5dbd326c YAP |
1546 | (1 << card->curr_wr_port)) || |
1547 | !MP_TX_AGGR_BUF_HAS_ROOM( | |
1548 | card, pkt_len + next_pkt_len)) | |
5e6e3a92 BZ |
1549 | f_send_aggr_buf = 1; |
1550 | } else { | |
1551 | /* No room in Aggr buf, send it */ | |
1552 | f_send_aggr_buf = 1; | |
1553 | ||
c7346c32 | 1554 | if (!(card->mp_wr_bitmap & |
5e6e3a92 BZ |
1555 | (1 << card->curr_wr_port))) |
1556 | f_send_cur_buf = 1; | |
1557 | else | |
1558 | f_postcopy_cur_buf = 1; | |
1559 | } | |
1560 | } else { | |
5dbd326c YAP |
1561 | if (MP_TX_AGGR_BUF_HAS_ROOM(card, pkt_len) && |
1562 | (card->mp_wr_bitmap & (1 << card->curr_wr_port))) | |
5e6e3a92 BZ |
1563 | f_precopy_cur_buf = 1; |
1564 | else | |
1565 | f_send_cur_buf = 1; | |
1566 | } | |
1567 | } else { | |
1568 | /* Last pkt in TX queue */ | |
1569 | dev_dbg(adapter->dev, "info: %s: Last packet in Tx Queue.\n", | |
5dbd326c | 1570 | __func__); |
5e6e3a92 BZ |
1571 | |
1572 | if (MP_TX_AGGR_IN_PROGRESS(card)) { | |
1573 | /* some packs in Aggr buf already */ | |
1574 | f_send_aggr_buf = 1; | |
1575 | ||
1576 | if (MP_TX_AGGR_BUF_HAS_ROOM(card, pkt_len)) | |
1577 | f_precopy_cur_buf = 1; | |
1578 | else | |
1579 | /* No room in Aggr buf, send it */ | |
1580 | f_send_cur_buf = 1; | |
1581 | } else { | |
1582 | f_send_cur_buf = 1; | |
1583 | } | |
1584 | } | |
1585 | ||
1586 | if (f_precopy_cur_buf) { | |
1587 | dev_dbg(adapter->dev, "data: %s: precopy current buffer\n", | |
5dbd326c | 1588 | __func__); |
5e6e3a92 BZ |
1589 | MP_TX_AGGR_BUF_PUT(card, payload, pkt_len, port); |
1590 | ||
1591 | if (MP_TX_AGGR_PKT_LIMIT_REACHED(card) || | |
c23b7c8f | 1592 | mp_tx_aggr_port_limit_reached(card)) |
5e6e3a92 BZ |
1593 | /* No more pkts allowed in Aggr buf, send it */ |
1594 | f_send_aggr_buf = 1; | |
1595 | } | |
1596 | ||
1597 | if (f_send_aggr_buf) { | |
1598 | dev_dbg(adapter->dev, "data: %s: send aggr buffer: %d %d\n", | |
5dbd326c | 1599 | __func__, |
5e6e3a92 | 1600 | card->mpa_tx.start_port, card->mpa_tx.ports); |
b60186f8 YAP |
1601 | if (card->supports_sdio_new_mode) { |
1602 | u32 port_count; | |
1603 | int i; | |
1604 | ||
1605 | for (i = 0, port_count = 0; i < card->max_ports; i++) | |
1606 | if (card->mpa_tx.ports & BIT(i)) | |
1607 | port_count++; | |
1608 | ||
1609 | /* Writing data from "start_port + 0" to "start_port + | |
1610 | * port_count -1", so decrease the count by 1 | |
1611 | */ | |
1612 | port_count--; | |
1613 | mport = (adapter->ioport | SDIO_MPA_ADDR_BASE | | |
1614 | (port_count << 8)) + card->mpa_tx.start_port; | |
1615 | } else { | |
1616 | mport = (adapter->ioport | SDIO_MPA_ADDR_BASE | | |
1617 | (card->mpa_tx.ports << 4)) + | |
1618 | card->mpa_tx.start_port; | |
1619 | } | |
1620 | ||
5e6e3a92 | 1621 | ret = mwifiex_write_data_to_card(adapter, card->mpa_tx.buf, |
0fc0d43b | 1622 | card->mpa_tx.buf_len, mport); |
5e6e3a92 BZ |
1623 | |
1624 | MP_TX_AGGR_BUF_RESET(card); | |
1625 | } | |
1626 | ||
1627 | tx_curr_single: | |
1628 | if (f_send_cur_buf) { | |
1629 | dev_dbg(adapter->dev, "data: %s: send current buffer %d\n", | |
5dbd326c | 1630 | __func__, port); |
5e6e3a92 BZ |
1631 | ret = mwifiex_write_data_to_card(adapter, payload, pkt_len, |
1632 | adapter->ioport + port); | |
1633 | } | |
1634 | ||
1635 | if (f_postcopy_cur_buf) { | |
1636 | dev_dbg(adapter->dev, "data: %s: postcopy current buffer\n", | |
5dbd326c | 1637 | __func__); |
5e6e3a92 BZ |
1638 | MP_TX_AGGR_BUF_PUT(card, payload, pkt_len, port); |
1639 | } | |
1640 | ||
1641 | return ret; | |
1642 | } | |
1643 | ||
1644 | /* | |
1645 | * This function downloads data from driver to card. | |
1646 | * | |
1647 | * Both commands and data packets are transferred to the card by this | |
1648 | * function. | |
1649 | * | |
1650 | * This function adds the SDIO specific header to the front of the buffer | |
1651 | * before transferring. The header contains the length of the packet and | |
1652 | * the type. The firmware handles the packets based upon this set type. | |
1653 | */ | |
1654 | static int mwifiex_sdio_host_to_card(struct mwifiex_adapter *adapter, | |
d930faee | 1655 | u8 type, struct sk_buff *skb, |
5e6e3a92 BZ |
1656 | struct mwifiex_tx_param *tx_param) |
1657 | { | |
1658 | struct sdio_mmc_card *card = adapter->card; | |
270e58e8 | 1659 | int ret; |
5e6e3a92 BZ |
1660 | u32 buf_block_len; |
1661 | u32 blk_size; | |
0fc0d43b | 1662 | u32 port = CTRL_PORT; |
d930faee AK |
1663 | u8 *payload = (u8 *)skb->data; |
1664 | u32 pkt_len = skb->len; | |
5e6e3a92 BZ |
1665 | |
1666 | /* Allocate buffer and copy payload */ | |
1667 | blk_size = MWIFIEX_SDIO_BLOCK_SIZE; | |
1668 | buf_block_len = (pkt_len + blk_size - 1) / blk_size; | |
83e612f6 TM |
1669 | *(__le16 *)&payload[0] = cpu_to_le16((u16)pkt_len); |
1670 | *(__le16 *)&payload[2] = cpu_to_le16(type); | |
5e6e3a92 BZ |
1671 | |
1672 | /* | |
1673 | * This is SDIO specific header | |
1674 | * u16 length, | |
1675 | * u16 type (MWIFIEX_TYPE_DATA = 0, MWIFIEX_TYPE_CMD = 1, | |
1676 | * MWIFIEX_TYPE_EVENT = 3) | |
1677 | */ | |
1678 | if (type == MWIFIEX_TYPE_DATA) { | |
1679 | ret = mwifiex_get_wr_port_data(adapter, &port); | |
1680 | if (ret) { | |
1681 | dev_err(adapter->dev, "%s: no wr_port available\n", | |
5dbd326c | 1682 | __func__); |
5e6e3a92 BZ |
1683 | return ret; |
1684 | } | |
1685 | } else { | |
1686 | adapter->cmd_sent = true; | |
1687 | /* Type must be MWIFIEX_TYPE_CMD */ | |
1688 | ||
1689 | if (pkt_len <= INTF_HEADER_LEN || | |
1690 | pkt_len > MWIFIEX_UPLD_SIZE) | |
1691 | dev_err(adapter->dev, "%s: payload=%p, nb=%d\n", | |
5dbd326c | 1692 | __func__, payload, pkt_len); |
b60186f8 YAP |
1693 | |
1694 | if (card->supports_sdio_new_mode) | |
1695 | port = CMD_PORT_SLCT; | |
5e6e3a92 BZ |
1696 | } |
1697 | ||
1698 | /* Transfer data to card */ | |
1699 | pkt_len = buf_block_len * blk_size; | |
1700 | ||
1701 | if (tx_param) | |
1702 | ret = mwifiex_host_to_card_mp_aggr(adapter, payload, pkt_len, | |
5dbd326c YAP |
1703 | port, tx_param->next_pkt_len |
1704 | ); | |
5e6e3a92 BZ |
1705 | else |
1706 | ret = mwifiex_host_to_card_mp_aggr(adapter, payload, pkt_len, | |
5dbd326c | 1707 | port, 0); |
5e6e3a92 BZ |
1708 | |
1709 | if (ret) { | |
1710 | if (type == MWIFIEX_TYPE_CMD) | |
1711 | adapter->cmd_sent = false; | |
bb71d01a | 1712 | if (type == MWIFIEX_TYPE_DATA) { |
5e6e3a92 | 1713 | adapter->data_sent = false; |
bb71d01a AP |
1714 | /* restore curr_wr_port in error cases */ |
1715 | card->curr_wr_port = port; | |
1716 | card->mp_wr_bitmap |= (u32)(1 << card->curr_wr_port); | |
1717 | } | |
5e6e3a92 BZ |
1718 | } else { |
1719 | if (type == MWIFIEX_TYPE_DATA) { | |
1720 | if (!(card->mp_wr_bitmap & (1 << card->curr_wr_port))) | |
1721 | adapter->data_sent = true; | |
1722 | else | |
1723 | adapter->data_sent = false; | |
1724 | } | |
1725 | } | |
1726 | ||
1727 | return ret; | |
1728 | } | |
1729 | ||
1730 | /* | |
1731 | * This function allocates the MPA Tx and Rx buffers. | |
1732 | */ | |
1733 | static int mwifiex_alloc_sdio_mpa_buffers(struct mwifiex_adapter *adapter, | |
1734 | u32 mpa_tx_buf_size, u32 mpa_rx_buf_size) | |
1735 | { | |
1736 | struct sdio_mmc_card *card = adapter->card; | |
1737 | int ret = 0; | |
1738 | ||
1739 | card->mpa_tx.buf = kzalloc(mpa_tx_buf_size, GFP_KERNEL); | |
1740 | if (!card->mpa_tx.buf) { | |
5e6e3a92 BZ |
1741 | ret = -1; |
1742 | goto error; | |
1743 | } | |
1744 | ||
1745 | card->mpa_tx.buf_size = mpa_tx_buf_size; | |
1746 | ||
1747 | card->mpa_rx.buf = kzalloc(mpa_rx_buf_size, GFP_KERNEL); | |
1748 | if (!card->mpa_rx.buf) { | |
5e6e3a92 BZ |
1749 | ret = -1; |
1750 | goto error; | |
1751 | } | |
1752 | ||
1753 | card->mpa_rx.buf_size = mpa_rx_buf_size; | |
1754 | ||
1755 | error: | |
1756 | if (ret) { | |
1757 | kfree(card->mpa_tx.buf); | |
1758 | kfree(card->mpa_rx.buf); | |
1759 | } | |
1760 | ||
1761 | return ret; | |
1762 | } | |
1763 | ||
1764 | /* | |
1765 | * This function unregisters the SDIO device. | |
1766 | * | |
1767 | * The SDIO IRQ is released, the function is disabled and driver | |
1768 | * data is set to null. | |
1769 | */ | |
1770 | static void | |
1771 | mwifiex_unregister_dev(struct mwifiex_adapter *adapter) | |
1772 | { | |
1773 | struct sdio_mmc_card *card = adapter->card; | |
1774 | ||
1775 | if (adapter->card) { | |
5e6e3a92 | 1776 | sdio_claim_host(card->func); |
5e6e3a92 BZ |
1777 | sdio_disable_func(card->func); |
1778 | sdio_release_host(card->func); | |
5e6e3a92 BZ |
1779 | } |
1780 | } | |
1781 | ||
1782 | /* | |
1783 | * This function registers the SDIO device. | |
1784 | * | |
1785 | * SDIO IRQ is claimed, block size is set and driver data is initialized. | |
1786 | */ | |
1787 | static int mwifiex_register_dev(struct mwifiex_adapter *adapter) | |
1788 | { | |
232fde06 | 1789 | int ret; |
5e6e3a92 BZ |
1790 | struct sdio_mmc_card *card = adapter->card; |
1791 | struct sdio_func *func = card->func; | |
1792 | ||
1793 | /* save adapter pointer in card */ | |
1794 | card->adapter = adapter; | |
828cf222 | 1795 | adapter->tx_buf_size = card->tx_buf_size; |
5e6e3a92 BZ |
1796 | |
1797 | sdio_claim_host(func); | |
1798 | ||
5e6e3a92 BZ |
1799 | /* Set block size */ |
1800 | ret = sdio_set_block_size(card->func, MWIFIEX_SDIO_BLOCK_SIZE); | |
232fde06 | 1801 | sdio_release_host(func); |
5e6e3a92 BZ |
1802 | if (ret) { |
1803 | pr_err("cannot set SDIO block size\n"); | |
232fde06 | 1804 | return ret; |
5e6e3a92 BZ |
1805 | } |
1806 | ||
5e6e3a92 BZ |
1807 | |
1808 | adapter->dev = &func->dev; | |
e3bea1c8 | 1809 | |
05889f82 | 1810 | strcpy(adapter->fw_name, card->firmware); |
54881c6b AK |
1811 | adapter->mem_type_mapping_tbl = mem_type_mapping_tbl; |
1812 | adapter->num_mem_types = ARRAY_SIZE(mem_type_mapping_tbl); | |
5e6e3a92 BZ |
1813 | |
1814 | return 0; | |
5e6e3a92 BZ |
1815 | } |
1816 | ||
1817 | /* | |
1818 | * This function initializes the SDIO driver. | |
1819 | * | |
1820 | * The following initializations steps are followed - | |
1821 | * - Read the Host interrupt status register to acknowledge | |
1822 | * the first interrupt got from bootloader | |
1823 | * - Disable host interrupt mask register | |
1824 | * - Get SDIO port | |
5e6e3a92 BZ |
1825 | * - Initialize SDIO variables in card |
1826 | * - Allocate MP registers | |
1827 | * - Allocate MPA Tx and Rx buffers | |
1828 | */ | |
1829 | static int mwifiex_init_sdio(struct mwifiex_adapter *adapter) | |
1830 | { | |
1831 | struct sdio_mmc_card *card = adapter->card; | |
05889f82 | 1832 | const struct mwifiex_sdio_card_reg *reg = card->reg; |
5e6e3a92 | 1833 | int ret; |
ab93d4ff | 1834 | u8 sdio_ireg; |
5e6e3a92 | 1835 | |
3c59e328 AK |
1836 | sdio_set_drvdata(card->func, card); |
1837 | ||
5e6e3a92 | 1838 | /* |
554a0113 | 1839 | * Read the host_int_status_reg for ACK the first interrupt got |
5e6e3a92 BZ |
1840 | * from the bootloader. If we don't do this we get a interrupt |
1841 | * as soon as we register the irq. | |
1842 | */ | |
554a0113 | 1843 | mwifiex_read_reg(adapter, card->reg->host_int_status_reg, &sdio_ireg); |
5e6e3a92 | 1844 | |
5e6e3a92 BZ |
1845 | /* Get SDIO ioport */ |
1846 | mwifiex_init_sdio_ioport(adapter); | |
1847 | ||
5e6e3a92 BZ |
1848 | /* Initialize SDIO variables in card */ |
1849 | card->mp_rd_bitmap = 0; | |
1850 | card->mp_wr_bitmap = 0; | |
05889f82 AK |
1851 | card->curr_rd_port = reg->start_rd_port; |
1852 | card->curr_wr_port = reg->start_wr_port; | |
5e6e3a92 | 1853 | |
05889f82 | 1854 | card->mp_data_port_mask = reg->data_port_mask; |
5e6e3a92 BZ |
1855 | |
1856 | card->mpa_tx.buf_len = 0; | |
1857 | card->mpa_tx.pkt_cnt = 0; | |
1858 | card->mpa_tx.start_port = 0; | |
1859 | ||
7d7ab022 | 1860 | card->mpa_tx.enabled = 1; |
05889f82 | 1861 | card->mpa_tx.pkt_aggr_limit = card->mp_agg_pkt_limit; |
5e6e3a92 BZ |
1862 | |
1863 | card->mpa_rx.buf_len = 0; | |
1864 | card->mpa_rx.pkt_cnt = 0; | |
1865 | card->mpa_rx.start_port = 0; | |
1866 | ||
7d7ab022 | 1867 | card->mpa_rx.enabled = 1; |
05889f82 | 1868 | card->mpa_rx.pkt_aggr_limit = card->mp_agg_pkt_limit; |
5e6e3a92 BZ |
1869 | |
1870 | /* Allocate buffers for SDIO MP-A */ | |
05889f82 | 1871 | card->mp_regs = kzalloc(reg->max_mp_regs, GFP_KERNEL); |
0d2e7a5c | 1872 | if (!card->mp_regs) |
b53575ec | 1873 | return -ENOMEM; |
5e6e3a92 | 1874 | |
c23b7c8f AK |
1875 | /* Allocate skb pointer buffers */ |
1876 | card->mpa_rx.skb_arr = kzalloc((sizeof(void *)) * | |
1877 | card->mp_agg_pkt_limit, GFP_KERNEL); | |
1878 | card->mpa_rx.len_arr = kzalloc(sizeof(*card->mpa_rx.len_arr) * | |
1879 | card->mp_agg_pkt_limit, GFP_KERNEL); | |
5e6e3a92 | 1880 | ret = mwifiex_alloc_sdio_mpa_buffers(adapter, |
e1aa93a4 AK |
1881 | card->mp_tx_agg_buf_size, |
1882 | card->mp_rx_agg_buf_size); | |
5e6e3a92 BZ |
1883 | if (ret) { |
1884 | dev_err(adapter->dev, "failed to alloc sdio mp-a buffers\n"); | |
1885 | kfree(card->mp_regs); | |
1886 | return -1; | |
1887 | } | |
1888 | ||
7bf16521 | 1889 | adapter->auto_tdls = card->auto_tdls; |
5e6e3a92 BZ |
1890 | return ret; |
1891 | } | |
1892 | ||
1893 | /* | |
1894 | * This function resets the MPA Tx and Rx buffers. | |
1895 | */ | |
1896 | static void mwifiex_cleanup_mpa_buf(struct mwifiex_adapter *adapter) | |
1897 | { | |
1898 | struct sdio_mmc_card *card = adapter->card; | |
1899 | ||
1900 | MP_TX_AGGR_BUF_RESET(card); | |
1901 | MP_RX_AGGR_BUF_RESET(card); | |
1902 | } | |
1903 | ||
1904 | /* | |
1905 | * This function cleans up the allocated card buffers. | |
1906 | * | |
1907 | * The following are freed by this function - | |
1908 | * - MP registers | |
1909 | * - MPA Tx buffer | |
1910 | * - MPA Rx buffer | |
1911 | */ | |
1912 | static void mwifiex_cleanup_sdio(struct mwifiex_adapter *adapter) | |
1913 | { | |
1914 | struct sdio_mmc_card *card = adapter->card; | |
1915 | ||
1916 | kfree(card->mp_regs); | |
c23b7c8f AK |
1917 | kfree(card->mpa_rx.skb_arr); |
1918 | kfree(card->mpa_rx.len_arr); | |
5e6e3a92 BZ |
1919 | kfree(card->mpa_tx.buf); |
1920 | kfree(card->mpa_rx.buf); | |
3c59e328 AK |
1921 | sdio_set_drvdata(card->func, NULL); |
1922 | kfree(card); | |
5e6e3a92 BZ |
1923 | } |
1924 | ||
1925 | /* | |
1926 | * This function updates the MP end port in card. | |
1927 | */ | |
1928 | static void | |
1929 | mwifiex_update_mp_end_port(struct mwifiex_adapter *adapter, u16 port) | |
1930 | { | |
1931 | struct sdio_mmc_card *card = adapter->card; | |
05889f82 | 1932 | const struct mwifiex_sdio_card_reg *reg = card->reg; |
5e6e3a92 BZ |
1933 | int i; |
1934 | ||
1935 | card->mp_end_port = port; | |
1936 | ||
05889f82 | 1937 | card->mp_data_port_mask = reg->data_port_mask; |
5e6e3a92 | 1938 | |
b60186f8 YAP |
1939 | if (reg->start_wr_port) { |
1940 | for (i = 1; i <= card->max_ports - card->mp_end_port; i++) | |
1941 | card->mp_data_port_mask &= | |
1942 | ~(1 << (card->max_ports - i)); | |
1943 | } | |
5e6e3a92 | 1944 | |
05889f82 | 1945 | card->curr_wr_port = reg->start_wr_port; |
5e6e3a92 BZ |
1946 | |
1947 | dev_dbg(adapter->dev, "cmd: mp_end_port %d, data port mask 0x%x\n", | |
5dbd326c | 1948 | port, card->mp_data_port_mask); |
5e6e3a92 BZ |
1949 | } |
1950 | ||
088df424 | 1951 | static void mwifiex_sdio_card_reset_work(struct mwifiex_adapter *adapter) |
d31ab357 | 1952 | { |
088df424 AK |
1953 | struct sdio_mmc_card *card = adapter->card; |
1954 | struct mmc_host *target = card->func->card->host; | |
7f5855c9 | 1955 | |
d31ab357 AK |
1956 | /* The actual reset operation must be run outside of driver thread. |
1957 | * This is because mmc_remove_host() will cause the device to be | |
1958 | * instantly destroyed, and the driver then needs to end its thread, | |
1959 | * leading to a deadlock. | |
1960 | * | |
1961 | * We run it in a totally independent workqueue. | |
1962 | */ | |
1963 | ||
1964 | pr_err("Resetting card...\n"); | |
7f5855c9 | 1965 | mmc_remove_host(target); |
b4f1b177 MY |
1966 | /* 200ms delay is based on experiment with sdhci controller */ |
1967 | mdelay(200); | |
81df6caf | 1968 | target->rescan_entered = 0; /* rescan non-removable cards */ |
7f5855c9 | 1969 | mmc_add_host(target); |
d31ab357 | 1970 | } |
8915d738 | 1971 | |
54881c6b AK |
1972 | /* This function read/write firmware */ |
1973 | static enum | |
1974 | rdwr_status mwifiex_sdio_rdwr_firmware(struct mwifiex_adapter *adapter, | |
1975 | u8 doneflag) | |
1976 | { | |
1977 | struct sdio_mmc_card *card = adapter->card; | |
1978 | int ret, tries; | |
1979 | u8 ctrl_data = 0; | |
1980 | ||
1981 | sdio_writeb(card->func, FW_DUMP_HOST_READY, card->reg->fw_dump_ctrl, | |
1982 | &ret); | |
1983 | if (ret) { | |
1984 | dev_err(adapter->dev, "SDIO Write ERR\n"); | |
1985 | return RDWR_STATUS_FAILURE; | |
1986 | } | |
1987 | for (tries = 0; tries < MAX_POLL_TRIES; tries++) { | |
1988 | ctrl_data = sdio_readb(card->func, card->reg->fw_dump_ctrl, | |
1989 | &ret); | |
1990 | if (ret) { | |
1991 | dev_err(adapter->dev, "SDIO read err\n"); | |
1992 | return RDWR_STATUS_FAILURE; | |
1993 | } | |
1994 | if (ctrl_data == FW_DUMP_DONE) | |
1995 | break; | |
1996 | if (doneflag && ctrl_data == doneflag) | |
1997 | return RDWR_STATUS_DONE; | |
1998 | if (ctrl_data != FW_DUMP_HOST_READY) { | |
1999 | dev_info(adapter->dev, | |
2000 | "The ctrl reg was changed, re-try again!\n"); | |
2001 | sdio_writeb(card->func, FW_DUMP_HOST_READY, | |
2002 | card->reg->fw_dump_ctrl, &ret); | |
2003 | if (ret) { | |
2004 | dev_err(adapter->dev, "SDIO write err\n"); | |
2005 | return RDWR_STATUS_FAILURE; | |
2006 | } | |
2007 | } | |
2008 | usleep_range(100, 200); | |
2009 | } | |
2010 | if (ctrl_data == FW_DUMP_HOST_READY) { | |
2011 | dev_err(adapter->dev, "Fail to pull ctrl_data\n"); | |
2012 | return RDWR_STATUS_FAILURE; | |
2013 | } | |
2014 | ||
2015 | return RDWR_STATUS_SUCCESS; | |
2016 | } | |
2017 | ||
2018 | /* This function dump firmware memory to file */ | |
2019 | static void mwifiex_sdio_fw_dump_work(struct work_struct *work) | |
2020 | { | |
2021 | struct mwifiex_adapter *adapter = | |
2022 | container_of(work, struct mwifiex_adapter, iface_work); | |
2023 | struct sdio_mmc_card *card = adapter->card; | |
2024 | int ret = 0; | |
2025 | unsigned int reg, reg_start, reg_end; | |
2026 | u8 *dbg_ptr, *end_ptr, dump_num, idx, i, read_reg, doneflag = 0; | |
54881c6b AK |
2027 | enum rdwr_status stat; |
2028 | u32 memory_size; | |
2029 | static char *env[] = { "DRIVER=mwifiex_sdio", "EVENT=fw_dump", NULL }; | |
2030 | ||
11cd07a9 XH |
2031 | mwifiex_dump_drv_info(adapter); |
2032 | ||
54881c6b AK |
2033 | if (!card->supports_fw_dump) |
2034 | return; | |
2035 | ||
2036 | for (idx = 0; idx < ARRAY_SIZE(mem_type_mapping_tbl); idx++) { | |
2037 | struct memory_type_mapping *entry = &mem_type_mapping_tbl[idx]; | |
2038 | ||
2039 | if (entry->mem_ptr) { | |
2040 | vfree(entry->mem_ptr); | |
2041 | entry->mem_ptr = NULL; | |
2042 | } | |
2043 | entry->mem_size = 0; | |
2044 | } | |
2045 | ||
2046 | mwifiex_pm_wakeup_card(adapter); | |
2047 | sdio_claim_host(card->func); | |
2048 | ||
1d9e954e | 2049 | dev_info(adapter->dev, "== mwifiex firmware dump start ==\n"); |
54881c6b AK |
2050 | |
2051 | stat = mwifiex_sdio_rdwr_firmware(adapter, doneflag); | |
2052 | if (stat == RDWR_STATUS_FAILURE) | |
2053 | goto done; | |
2054 | ||
2055 | reg = card->reg->fw_dump_start; | |
2056 | /* Read the number of the memories which will dump */ | |
2057 | dump_num = sdio_readb(card->func, reg, &ret); | |
2058 | if (ret) { | |
2059 | dev_err(adapter->dev, "SDIO read memory length err\n"); | |
2060 | goto done; | |
2061 | } | |
2062 | ||
2063 | /* Read the length of every memory which will dump */ | |
2064 | for (idx = 0; idx < dump_num; idx++) { | |
2065 | struct memory_type_mapping *entry = &mem_type_mapping_tbl[idx]; | |
2066 | ||
2067 | stat = mwifiex_sdio_rdwr_firmware(adapter, doneflag); | |
2068 | if (stat == RDWR_STATUS_FAILURE) | |
2069 | goto done; | |
2070 | ||
2071 | memory_size = 0; | |
2072 | reg = card->reg->fw_dump_start; | |
2073 | for (i = 0; i < 4; i++) { | |
2074 | read_reg = sdio_readb(card->func, reg, &ret); | |
2075 | if (ret) { | |
2076 | dev_err(adapter->dev, "SDIO read err\n"); | |
2077 | goto done; | |
2078 | } | |
2079 | memory_size |= (read_reg << i*8); | |
2080 | reg++; | |
2081 | } | |
2082 | ||
2083 | if (memory_size == 0) { | |
2084 | dev_info(adapter->dev, "Firmware dump Finished!\n"); | |
2085 | break; | |
2086 | } | |
2087 | ||
2088 | dev_info(adapter->dev, | |
2089 | "%s_SIZE=0x%x\n", entry->mem_name, memory_size); | |
2090 | entry->mem_ptr = vmalloc(memory_size + 1); | |
2091 | entry->mem_size = memory_size; | |
2092 | if (!entry->mem_ptr) { | |
2093 | dev_err(adapter->dev, "Vmalloc %s failed\n", | |
2094 | entry->mem_name); | |
2095 | goto done; | |
2096 | } | |
2097 | dbg_ptr = entry->mem_ptr; | |
2098 | end_ptr = dbg_ptr + memory_size; | |
2099 | ||
2100 | doneflag = entry->done_flag; | |
1d9e954e BZ |
2101 | dev_info(adapter->dev, "Start %s output, please wait...\n", |
2102 | entry->mem_name); | |
54881c6b AK |
2103 | |
2104 | do { | |
2105 | stat = mwifiex_sdio_rdwr_firmware(adapter, doneflag); | |
2106 | if (stat == RDWR_STATUS_FAILURE) | |
2107 | goto done; | |
2108 | ||
2109 | reg_start = card->reg->fw_dump_start; | |
2110 | reg_end = card->reg->fw_dump_end; | |
2111 | for (reg = reg_start; reg <= reg_end; reg++) { | |
2112 | *dbg_ptr = sdio_readb(card->func, reg, &ret); | |
2113 | if (ret) { | |
2114 | dev_err(adapter->dev, | |
2115 | "SDIO read err\n"); | |
2116 | goto done; | |
2117 | } | |
2118 | if (dbg_ptr < end_ptr) | |
2119 | dbg_ptr++; | |
2120 | else | |
2121 | dev_err(adapter->dev, | |
2122 | "Allocated buf not enough\n"); | |
2123 | } | |
2124 | ||
2125 | if (stat != RDWR_STATUS_DONE) | |
2126 | continue; | |
2127 | ||
2128 | dev_info(adapter->dev, "%s done: size=0x%tx\n", | |
2129 | entry->mem_name, dbg_ptr - entry->mem_ptr); | |
2130 | break; | |
2131 | } while (1); | |
2132 | } | |
1d9e954e | 2133 | dev_info(adapter->dev, "== mwifiex firmware dump end ==\n"); |
54881c6b AK |
2134 | |
2135 | kobject_uevent_env(&adapter->wiphy->dev.kobj, KOBJ_CHANGE, env); | |
2136 | ||
2137 | done: | |
2138 | sdio_release_host(card->func); | |
2139 | adapter->curr_mem_idx = 0; | |
2140 | } | |
2141 | ||
8915d738 AK |
2142 | static void mwifiex_sdio_work(struct work_struct *work) |
2143 | { | |
2144 | struct mwifiex_adapter *adapter = | |
2145 | container_of(work, struct mwifiex_adapter, iface_work); | |
2146 | ||
2147 | if (test_and_clear_bit(MWIFIEX_IFACE_WORK_CARD_RESET, | |
2148 | &adapter->iface_work_flags)) | |
088df424 | 2149 | mwifiex_sdio_card_reset_work(adapter); |
54881c6b AK |
2150 | if (test_and_clear_bit(MWIFIEX_IFACE_WORK_FW_DUMP, |
2151 | &adapter->iface_work_flags)) | |
2152 | mwifiex_sdio_fw_dump_work(work); | |
8915d738 | 2153 | } |
d31ab357 AK |
2154 | |
2155 | /* This function resets the card */ | |
2156 | static void mwifiex_sdio_card_reset(struct mwifiex_adapter *adapter) | |
2157 | { | |
8915d738 AK |
2158 | if (test_bit(MWIFIEX_IFACE_WORK_CARD_RESET, &adapter->iface_work_flags)) |
2159 | return; | |
2160 | ||
2161 | set_bit(MWIFIEX_IFACE_WORK_CARD_RESET, &adapter->iface_work_flags); | |
2162 | ||
8915d738 | 2163 | schedule_work(&adapter->iface_work); |
d31ab357 AK |
2164 | } |
2165 | ||
54881c6b AK |
2166 | /* This function dumps FW information */ |
2167 | static void mwifiex_sdio_fw_dump(struct mwifiex_adapter *adapter) | |
2168 | { | |
2169 | if (test_bit(MWIFIEX_IFACE_WORK_FW_DUMP, &adapter->iface_work_flags)) | |
2170 | return; | |
2171 | ||
2172 | set_bit(MWIFIEX_IFACE_WORK_FW_DUMP, &adapter->iface_work_flags); | |
2173 | schedule_work(&adapter->iface_work); | |
2174 | } | |
2175 | ||
809c6ea8 XH |
2176 | /* Function to dump SDIO function registers and SDIO scratch registers in case |
2177 | * of FW crash | |
2178 | */ | |
2179 | static int | |
2180 | mwifiex_sdio_reg_dump(struct mwifiex_adapter *adapter, char *drv_buf) | |
2181 | { | |
2182 | char *p = drv_buf; | |
2183 | struct sdio_mmc_card *cardp = adapter->card; | |
2184 | int ret = 0; | |
2185 | u8 count, func, data, index = 0, size = 0; | |
2186 | u8 reg, reg_start, reg_end; | |
2187 | char buf[256], *ptr; | |
2188 | ||
2189 | if (!p) | |
2190 | return 0; | |
2191 | ||
2192 | dev_info(adapter->dev, "SDIO register DUMP START\n"); | |
2193 | ||
2194 | mwifiex_pm_wakeup_card(adapter); | |
2195 | ||
2196 | sdio_claim_host(cardp->func); | |
2197 | ||
2198 | for (count = 0; count < 5; count++) { | |
2199 | memset(buf, 0, sizeof(buf)); | |
2200 | ptr = buf; | |
2201 | ||
2202 | switch (count) { | |
2203 | case 0: | |
2204 | /* Read the registers of SDIO function0 */ | |
2205 | func = count; | |
2206 | reg_start = 0; | |
2207 | reg_end = 9; | |
2208 | break; | |
2209 | case 1: | |
2210 | /* Read the registers of SDIO function1 */ | |
2211 | func = count; | |
2212 | reg_start = cardp->reg->func1_dump_reg_start; | |
2213 | reg_end = cardp->reg->func1_dump_reg_end; | |
2214 | break; | |
2215 | case 2: | |
2216 | index = 0; | |
2217 | func = 1; | |
2218 | reg_start = cardp->reg->func1_spec_reg_table[index++]; | |
2219 | size = cardp->reg->func1_spec_reg_num; | |
2220 | reg_end = cardp->reg->func1_spec_reg_table[size-1]; | |
2221 | break; | |
2222 | default: | |
2223 | /* Read the scratch registers of SDIO function1 */ | |
2224 | if (count == 4) | |
2225 | mdelay(100); | |
2226 | func = 1; | |
2227 | reg_start = cardp->reg->func1_scratch_reg; | |
2228 | reg_end = reg_start + MWIFIEX_SDIO_SCRATCH_SIZE; | |
2229 | } | |
2230 | ||
2231 | if (count != 2) | |
2232 | ptr += sprintf(ptr, "SDIO Func%d (%#x-%#x): ", | |
2233 | func, reg_start, reg_end); | |
2234 | else | |
2235 | ptr += sprintf(ptr, "SDIO Func%d: ", func); | |
2236 | ||
2237 | for (reg = reg_start; reg <= reg_end;) { | |
2238 | if (func == 0) | |
2239 | data = sdio_f0_readb(cardp->func, reg, &ret); | |
2240 | else | |
2241 | data = sdio_readb(cardp->func, reg, &ret); | |
2242 | ||
2243 | if (count == 2) | |
2244 | ptr += sprintf(ptr, "(%#x) ", reg); | |
2245 | if (!ret) { | |
2246 | ptr += sprintf(ptr, "%02x ", data); | |
2247 | } else { | |
2248 | ptr += sprintf(ptr, "ERR"); | |
2249 | break; | |
2250 | } | |
2251 | ||
2252 | if (count == 2 && reg < reg_end) | |
2253 | reg = cardp->reg->func1_spec_reg_table[index++]; | |
2254 | else | |
2255 | reg++; | |
2256 | } | |
2257 | ||
2258 | dev_info(adapter->dev, "%s\n", buf); | |
2259 | p += sprintf(p, "%s\n", buf); | |
2260 | } | |
2261 | ||
2262 | sdio_release_host(cardp->func); | |
2263 | ||
2264 | dev_info(adapter->dev, "SDIO register DUMP END\n"); | |
2265 | ||
2266 | return p - drv_buf; | |
2267 | } | |
2268 | ||
5e6e3a92 BZ |
2269 | static struct mwifiex_if_ops sdio_ops = { |
2270 | .init_if = mwifiex_init_sdio, | |
2271 | .cleanup_if = mwifiex_cleanup_sdio, | |
2272 | .check_fw_status = mwifiex_check_fw_status, | |
2273 | .prog_fw = mwifiex_prog_fw_w_helper, | |
2274 | .register_dev = mwifiex_register_dev, | |
2275 | .unregister_dev = mwifiex_unregister_dev, | |
2276 | .enable_int = mwifiex_sdio_enable_host_int, | |
232fde06 | 2277 | .disable_int = mwifiex_sdio_disable_host_int, |
5e6e3a92 BZ |
2278 | .process_int_status = mwifiex_process_int_status, |
2279 | .host_to_card = mwifiex_sdio_host_to_card, | |
2280 | .wakeup = mwifiex_pm_wakeup_card, | |
2281 | .wakeup_complete = mwifiex_pm_wakeup_card_complete, | |
2282 | ||
2283 | /* SDIO specific */ | |
2284 | .update_mp_end_port = mwifiex_update_mp_end_port, | |
2285 | .cleanup_mpa_buf = mwifiex_cleanup_mpa_buf, | |
d930faee AK |
2286 | .cmdrsp_complete = mwifiex_sdio_cmdrsp_complete, |
2287 | .event_complete = mwifiex_sdio_event_complete, | |
d31ab357 | 2288 | .card_reset = mwifiex_sdio_card_reset, |
8915d738 | 2289 | .iface_work = mwifiex_sdio_work, |
54881c6b | 2290 | .fw_dump = mwifiex_sdio_fw_dump, |
809c6ea8 | 2291 | .reg_dump = mwifiex_sdio_reg_dump, |
5e6e3a92 BZ |
2292 | }; |
2293 | ||
2294 | /* | |
2295 | * This function initializes the SDIO driver. | |
2296 | * | |
2297 | * This initiates the semaphore and registers the device with | |
2298 | * SDIO bus. | |
2299 | */ | |
2300 | static int | |
2301 | mwifiex_sdio_init_module(void) | |
2302 | { | |
5e6e3a92 BZ |
2303 | sema_init(&add_remove_card_sem, 1); |
2304 | ||
287546df AK |
2305 | /* Clear the flag in case user removes the card. */ |
2306 | user_rmmod = 0; | |
2307 | ||
636c4598 | 2308 | return sdio_register_driver(&mwifiex_sdio); |
5e6e3a92 BZ |
2309 | } |
2310 | ||
2311 | /* | |
2312 | * This function cleans up the SDIO driver. | |
2313 | * | |
2314 | * The following major steps are followed for cleanup - | |
2315 | * - Resume the device if its suspended | |
2316 | * - Disconnect the device if connected | |
2317 | * - Shutdown the firmware | |
2318 | * - Unregister the device from SDIO bus. | |
2319 | */ | |
2320 | static void | |
2321 | mwifiex_sdio_cleanup_module(void) | |
2322 | { | |
287546df AK |
2323 | if (!down_interruptible(&add_remove_card_sem)) |
2324 | up(&add_remove_card_sem); | |
5e6e3a92 | 2325 | |
287546df AK |
2326 | /* Set the flag as user is removing this module. */ |
2327 | user_rmmod = 1; | |
5e6e3a92 | 2328 | |
5e6e3a92 BZ |
2329 | sdio_unregister_driver(&mwifiex_sdio); |
2330 | } | |
2331 | ||
2332 | module_init(mwifiex_sdio_init_module); | |
2333 | module_exit(mwifiex_sdio_cleanup_module); | |
2334 | ||
2335 | MODULE_AUTHOR("Marvell International Ltd."); | |
2336 | MODULE_DESCRIPTION("Marvell WiFi-Ex SDIO Driver version " SDIO_VERSION); | |
2337 | MODULE_VERSION(SDIO_VERSION); | |
2338 | MODULE_LICENSE("GPL v2"); | |
98e6b9df | 2339 | MODULE_FIRMWARE(SD8786_DEFAULT_FW_NAME); |
e3bea1c8 BZ |
2340 | MODULE_FIRMWARE(SD8787_DEFAULT_FW_NAME); |
2341 | MODULE_FIRMWARE(SD8797_DEFAULT_FW_NAME); | |
b60186f8 | 2342 | MODULE_FIRMWARE(SD8897_DEFAULT_FW_NAME); |
030bb75a | 2343 | MODULE_FIRMWARE(SD8887_DEFAULT_FW_NAME); |