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; |
05889f82 AK |
109 | } |
110 | ||
5e6e3a92 BZ |
111 | sdio_claim_host(func); |
112 | ret = sdio_enable_func(func); | |
113 | sdio_release_host(func); | |
114 | ||
115 | if (ret) { | |
116 | pr_err("%s: failed to enable function\n", __func__); | |
b53575ec | 117 | kfree(card); |
5e6e3a92 BZ |
118 | return -EIO; |
119 | } | |
120 | ||
d930faee AK |
121 | if (mwifiex_add_card(card, &add_remove_card_sem, &sdio_ops, |
122 | MWIFIEX_SDIO)) { | |
5e6e3a92 BZ |
123 | pr_err("%s: add card failed\n", __func__); |
124 | kfree(card); | |
125 | sdio_claim_host(func); | |
126 | ret = sdio_disable_func(func); | |
127 | sdio_release_host(func); | |
128 | ret = -1; | |
129 | } | |
130 | ||
131 | return ret; | |
132 | } | |
133 | ||
2cdf359a AK |
134 | /* |
135 | * SDIO resume. | |
136 | * | |
137 | * Kernel needs to suspend all functions separately. Therefore all | |
138 | * registered functions must have drivers with suspend and resume | |
139 | * methods. Failing that the kernel simply removes the whole card. | |
140 | * | |
141 | * If already not resumed, this function turns on the traffic and | |
142 | * sends a host sleep cancel request to the firmware. | |
143 | */ | |
144 | static int mwifiex_sdio_resume(struct device *dev) | |
145 | { | |
146 | struct sdio_func *func = dev_to_sdio_func(dev); | |
147 | struct sdio_mmc_card *card; | |
148 | struct mwifiex_adapter *adapter; | |
149 | mmc_pm_flag_t pm_flag = 0; | |
150 | ||
151 | if (func) { | |
152 | pm_flag = sdio_get_host_pm_caps(func); | |
153 | card = sdio_get_drvdata(func); | |
154 | if (!card || !card->adapter) { | |
155 | pr_err("resume: invalid card or adapter\n"); | |
156 | return 0; | |
157 | } | |
158 | } else { | |
159 | pr_err("resume: sdio_func is not specified\n"); | |
160 | return 0; | |
161 | } | |
162 | ||
163 | adapter = card->adapter; | |
164 | ||
165 | if (!adapter->is_suspended) { | |
166 | dev_warn(adapter->dev, "device already resumed\n"); | |
167 | return 0; | |
168 | } | |
169 | ||
170 | adapter->is_suspended = false; | |
171 | ||
172 | /* Disable Host Sleep */ | |
173 | mwifiex_cancel_hs(mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA), | |
174 | MWIFIEX_ASYNC_CMD); | |
175 | ||
176 | return 0; | |
177 | } | |
178 | ||
5e6e3a92 BZ |
179 | /* |
180 | * SDIO remove. | |
181 | * | |
182 | * This function removes the interface and frees up the card structure. | |
183 | */ | |
184 | static void | |
185 | mwifiex_sdio_remove(struct sdio_func *func) | |
186 | { | |
187 | struct sdio_mmc_card *card; | |
287546df | 188 | struct mwifiex_adapter *adapter; |
5dbd326c | 189 | struct mwifiex_private *priv; |
5e6e3a92 BZ |
190 | |
191 | pr_debug("info: SDIO func num=%d\n", func->num); | |
192 | ||
287546df AK |
193 | card = sdio_get_drvdata(func); |
194 | if (!card) | |
195 | return; | |
196 | ||
197 | adapter = card->adapter; | |
198 | if (!adapter || !adapter->priv_num) | |
199 | return; | |
200 | ||
8915d738 AK |
201 | cancel_work_sync(&adapter->iface_work); |
202 | ||
287546df AK |
203 | if (user_rmmod) { |
204 | if (adapter->is_suspended) | |
205 | mwifiex_sdio_resume(adapter->dev); | |
206 | ||
848819f4 | 207 | mwifiex_deauthenticate_all(adapter); |
287546df | 208 | |
5dbd326c YAP |
209 | priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY); |
210 | mwifiex_disable_auto_ds(priv); | |
211 | mwifiex_init_shutdown_fw(priv, MWIFIEX_FUNC_SHUTDOWN); | |
5e6e3a92 | 212 | } |
287546df AK |
213 | |
214 | mwifiex_remove_card(card->adapter, &add_remove_card_sem); | |
5e6e3a92 BZ |
215 | } |
216 | ||
217 | /* | |
218 | * SDIO suspend. | |
219 | * | |
220 | * Kernel needs to suspend all functions separately. Therefore all | |
221 | * registered functions must have drivers with suspend and resume | |
222 | * methods. Failing that the kernel simply removes the whole card. | |
223 | * | |
224 | * If already not suspended, this function allocates and sends a host | |
225 | * sleep activate request to the firmware and turns off the traffic. | |
226 | */ | |
227 | static int mwifiex_sdio_suspend(struct device *dev) | |
228 | { | |
229 | struct sdio_func *func = dev_to_sdio_func(dev); | |
230 | struct sdio_mmc_card *card; | |
270e58e8 | 231 | struct mwifiex_adapter *adapter; |
5e6e3a92 | 232 | mmc_pm_flag_t pm_flag = 0; |
5e6e3a92 BZ |
233 | int ret = 0; |
234 | ||
235 | if (func) { | |
236 | pm_flag = sdio_get_host_pm_caps(func); | |
237 | pr_debug("cmd: %s: suspend: PM flag = 0x%x\n", | |
5dbd326c | 238 | sdio_func_id(func), pm_flag); |
5e6e3a92 BZ |
239 | if (!(pm_flag & MMC_PM_KEEP_POWER)) { |
240 | pr_err("%s: cannot remain alive while host is" | |
241 | " suspended\n", sdio_func_id(func)); | |
242 | return -ENOSYS; | |
243 | } | |
244 | ||
245 | card = sdio_get_drvdata(func); | |
246 | if (!card || !card->adapter) { | |
247 | pr_err("suspend: invalid card or adapter\n"); | |
248 | return 0; | |
249 | } | |
250 | } else { | |
251 | pr_err("suspend: sdio_func is not specified\n"); | |
252 | return 0; | |
253 | } | |
254 | ||
255 | adapter = card->adapter; | |
256 | ||
257 | /* Enable the Host Sleep */ | |
dd321acd BZ |
258 | if (!mwifiex_enable_hs(adapter)) { |
259 | dev_err(adapter->dev, "cmd: failed to suspend\n"); | |
c0dbba66 | 260 | adapter->hs_enabling = false; |
dd321acd | 261 | return -EFAULT; |
5e6e3a92 BZ |
262 | } |
263 | ||
dd321acd BZ |
264 | dev_dbg(adapter->dev, "cmd: suspend with MMC_PM_KEEP_POWER\n"); |
265 | ret = sdio_set_host_pm_flags(func, MMC_PM_KEEP_POWER); | |
266 | ||
5e6e3a92 BZ |
267 | /* Indicate device suspended */ |
268 | adapter->is_suspended = true; | |
c0dbba66 | 269 | adapter->hs_enabling = false; |
5e6e3a92 | 270 | |
5e6e3a92 BZ |
271 | return ret; |
272 | } | |
273 | ||
98e6b9df W |
274 | /* Device ID for SD8786 */ |
275 | #define SDIO_DEVICE_ID_MARVELL_8786 (0x9116) | |
5e6e3a92 BZ |
276 | /* Device ID for SD8787 */ |
277 | #define SDIO_DEVICE_ID_MARVELL_8787 (0x9119) | |
e3bea1c8 BZ |
278 | /* Device ID for SD8797 */ |
279 | #define SDIO_DEVICE_ID_MARVELL_8797 (0x9129) | |
b60186f8 YAP |
280 | /* Device ID for SD8897 */ |
281 | #define SDIO_DEVICE_ID_MARVELL_8897 (0x912d) | |
5e6e3a92 BZ |
282 | |
283 | /* WLAN IDs */ | |
284 | static const struct sdio_device_id mwifiex_ids[] = { | |
05889f82 AK |
285 | {SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8786), |
286 | .driver_data = (unsigned long) &mwifiex_sdio_sd8786}, | |
287 | {SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8787), | |
288 | .driver_data = (unsigned long) &mwifiex_sdio_sd8787}, | |
289 | {SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8797), | |
290 | .driver_data = (unsigned long) &mwifiex_sdio_sd8797}, | |
b60186f8 YAP |
291 | {SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8897), |
292 | .driver_data = (unsigned long) &mwifiex_sdio_sd8897}, | |
5e6e3a92 BZ |
293 | {}, |
294 | }; | |
295 | ||
296 | MODULE_DEVICE_TABLE(sdio, mwifiex_ids); | |
297 | ||
298 | static const struct dev_pm_ops mwifiex_sdio_pm_ops = { | |
299 | .suspend = mwifiex_sdio_suspend, | |
300 | .resume = mwifiex_sdio_resume, | |
301 | }; | |
302 | ||
303 | static struct sdio_driver mwifiex_sdio = { | |
304 | .name = "mwifiex_sdio", | |
305 | .id_table = mwifiex_ids, | |
306 | .probe = mwifiex_sdio_probe, | |
307 | .remove = mwifiex_sdio_remove, | |
308 | .drv = { | |
309 | .owner = THIS_MODULE, | |
310 | .pm = &mwifiex_sdio_pm_ops, | |
311 | } | |
312 | }; | |
313 | ||
232fde06 DD |
314 | /* Write data into SDIO card register. Caller claims SDIO device. */ |
315 | static int | |
316 | mwifiex_write_reg_locked(struct sdio_func *func, u32 reg, u8 data) | |
317 | { | |
318 | int ret = -1; | |
319 | sdio_writeb(func, data, reg, &ret); | |
320 | return ret; | |
321 | } | |
322 | ||
5e6e3a92 BZ |
323 | /* |
324 | * This function writes data into SDIO card register. | |
325 | */ | |
326 | static int | |
ab93d4ff | 327 | mwifiex_write_reg(struct mwifiex_adapter *adapter, u32 reg, u8 data) |
5e6e3a92 BZ |
328 | { |
329 | struct sdio_mmc_card *card = adapter->card; | |
232fde06 | 330 | int ret; |
5e6e3a92 BZ |
331 | |
332 | sdio_claim_host(card->func); | |
232fde06 | 333 | ret = mwifiex_write_reg_locked(card->func, reg, data); |
5e6e3a92 BZ |
334 | sdio_release_host(card->func); |
335 | ||
336 | return ret; | |
337 | } | |
338 | ||
339 | /* | |
340 | * This function reads data from SDIO card register. | |
341 | */ | |
342 | static int | |
ab93d4ff | 343 | mwifiex_read_reg(struct mwifiex_adapter *adapter, u32 reg, u8 *data) |
5e6e3a92 BZ |
344 | { |
345 | struct sdio_mmc_card *card = adapter->card; | |
346 | int ret = -1; | |
347 | u8 val; | |
348 | ||
349 | sdio_claim_host(card->func); | |
350 | val = sdio_readb(card->func, reg, &ret); | |
351 | sdio_release_host(card->func); | |
352 | ||
353 | *data = val; | |
354 | ||
355 | return ret; | |
356 | } | |
357 | ||
358 | /* | |
359 | * This function writes multiple data into SDIO card memory. | |
360 | * | |
361 | * This does not work in suspended mode. | |
362 | */ | |
363 | static int | |
364 | mwifiex_write_data_sync(struct mwifiex_adapter *adapter, | |
572e8f3e | 365 | u8 *buffer, u32 pkt_len, u32 port) |
5e6e3a92 BZ |
366 | { |
367 | struct sdio_mmc_card *card = adapter->card; | |
5b2e2ecc | 368 | int ret; |
5e6e3a92 BZ |
369 | u8 blk_mode = |
370 | (port & MWIFIEX_SDIO_BYTE_MODE_MASK) ? BYTE_MODE : BLOCK_MODE; | |
371 | u32 blk_size = (blk_mode == BLOCK_MODE) ? MWIFIEX_SDIO_BLOCK_SIZE : 1; | |
372 | u32 blk_cnt = | |
373 | (blk_mode == | |
374 | BLOCK_MODE) ? (pkt_len / | |
375 | MWIFIEX_SDIO_BLOCK_SIZE) : pkt_len; | |
376 | u32 ioport = (port & MWIFIEX_SDIO_IO_PORT_MASK); | |
377 | ||
378 | if (adapter->is_suspended) { | |
379 | dev_err(adapter->dev, | |
380 | "%s: not allowed while suspended\n", __func__); | |
381 | return -1; | |
382 | } | |
383 | ||
384 | sdio_claim_host(card->func); | |
385 | ||
5b2e2ecc | 386 | ret = sdio_writesb(card->func, ioport, buffer, blk_cnt * blk_size); |
5e6e3a92 BZ |
387 | |
388 | sdio_release_host(card->func); | |
389 | ||
390 | return ret; | |
391 | } | |
392 | ||
393 | /* | |
394 | * This function reads multiple data from SDIO card memory. | |
395 | */ | |
572e8f3e AK |
396 | static int mwifiex_read_data_sync(struct mwifiex_adapter *adapter, u8 *buffer, |
397 | u32 len, u32 port, u8 claim) | |
5e6e3a92 BZ |
398 | { |
399 | struct sdio_mmc_card *card = adapter->card; | |
5b2e2ecc | 400 | int ret; |
5dbd326c YAP |
401 | u8 blk_mode = (port & MWIFIEX_SDIO_BYTE_MODE_MASK) ? BYTE_MODE |
402 | : BLOCK_MODE; | |
5e6e3a92 | 403 | u32 blk_size = (blk_mode == BLOCK_MODE) ? MWIFIEX_SDIO_BLOCK_SIZE : 1; |
5dbd326c YAP |
404 | u32 blk_cnt = (blk_mode == BLOCK_MODE) ? (len / MWIFIEX_SDIO_BLOCK_SIZE) |
405 | : len; | |
5e6e3a92 BZ |
406 | u32 ioport = (port & MWIFIEX_SDIO_IO_PORT_MASK); |
407 | ||
408 | if (claim) | |
409 | sdio_claim_host(card->func); | |
410 | ||
5b2e2ecc | 411 | ret = sdio_readsb(card->func, buffer, ioport, blk_cnt * blk_size); |
5e6e3a92 BZ |
412 | |
413 | if (claim) | |
414 | sdio_release_host(card->func); | |
415 | ||
416 | return ret; | |
417 | } | |
418 | ||
419 | /* | |
420 | * This function wakes up the card. | |
421 | * | |
422 | * A host power up command is written to the card configuration | |
423 | * register to wake up the card. | |
424 | */ | |
425 | static int mwifiex_pm_wakeup_card(struct mwifiex_adapter *adapter) | |
426 | { | |
5e6e3a92 | 427 | dev_dbg(adapter->dev, "event: wakeup device...\n"); |
5e6e3a92 | 428 | |
636c4598 | 429 | return mwifiex_write_reg(adapter, CONFIGURATION_REG, HOST_POWER_UP); |
5e6e3a92 BZ |
430 | } |
431 | ||
432 | /* | |
433 | * This function is called after the card has woken up. | |
434 | * | |
435 | * The card configuration register is reset. | |
436 | */ | |
437 | static int mwifiex_pm_wakeup_card_complete(struct mwifiex_adapter *adapter) | |
438 | { | |
5e6e3a92 | 439 | dev_dbg(adapter->dev, "cmd: wakeup device completed\n"); |
5e6e3a92 | 440 | |
636c4598 | 441 | return mwifiex_write_reg(adapter, CONFIGURATION_REG, 0); |
5e6e3a92 BZ |
442 | } |
443 | ||
444 | /* | |
b60186f8 YAP |
445 | * This function is used to initialize IO ports for the |
446 | * chipsets supporting SDIO new mode eg SD8897. | |
447 | */ | |
448 | static int mwifiex_init_sdio_new_mode(struct mwifiex_adapter *adapter) | |
449 | { | |
450 | u8 reg; | |
451 | ||
452 | adapter->ioport = MEM_PORT; | |
453 | ||
454 | /* enable sdio new mode */ | |
455 | if (mwifiex_read_reg(adapter, CARD_CONFIG_2_1_REG, ®)) | |
456 | return -1; | |
457 | if (mwifiex_write_reg(adapter, CARD_CONFIG_2_1_REG, | |
458 | reg | CMD53_NEW_MODE)) | |
459 | return -1; | |
460 | ||
461 | /* Configure cmd port and enable reading rx length from the register */ | |
462 | if (mwifiex_read_reg(adapter, CMD_CONFIG_0, ®)) | |
463 | return -1; | |
464 | if (mwifiex_write_reg(adapter, CMD_CONFIG_0, reg | CMD_PORT_RD_LEN_EN)) | |
465 | return -1; | |
466 | ||
467 | /* Enable Dnld/Upld ready auto reset for cmd port after cmd53 is | |
468 | * completed | |
469 | */ | |
470 | if (mwifiex_read_reg(adapter, CMD_CONFIG_1, ®)) | |
471 | return -1; | |
472 | if (mwifiex_write_reg(adapter, CMD_CONFIG_1, reg | CMD_PORT_AUTO_EN)) | |
473 | return -1; | |
474 | ||
475 | return 0; | |
476 | } | |
477 | ||
478 | /* This function initializes the IO ports. | |
5e6e3a92 BZ |
479 | * |
480 | * The following operations are performed - | |
481 | * - Read the IO ports (0, 1 and 2) | |
482 | * - Set host interrupt Reset-To-Read to clear | |
483 | * - Set auto re-enable interrupt | |
484 | */ | |
485 | static int mwifiex_init_sdio_ioport(struct mwifiex_adapter *adapter) | |
486 | { | |
ab93d4ff | 487 | u8 reg; |
05889f82 | 488 | struct sdio_mmc_card *card = adapter->card; |
5e6e3a92 BZ |
489 | |
490 | adapter->ioport = 0; | |
491 | ||
b60186f8 YAP |
492 | if (card->supports_sdio_new_mode) { |
493 | if (mwifiex_init_sdio_new_mode(adapter)) | |
494 | return -1; | |
495 | goto cont; | |
496 | } | |
497 | ||
5e6e3a92 BZ |
498 | /* Read the IO port */ |
499 | if (!mwifiex_read_reg(adapter, IO_PORT_0_REG, ®)) | |
500 | adapter->ioport |= (reg & 0xff); | |
501 | else | |
502 | return -1; | |
503 | ||
504 | if (!mwifiex_read_reg(adapter, IO_PORT_1_REG, ®)) | |
505 | adapter->ioport |= ((reg & 0xff) << 8); | |
506 | else | |
507 | return -1; | |
508 | ||
509 | if (!mwifiex_read_reg(adapter, IO_PORT_2_REG, ®)) | |
510 | adapter->ioport |= ((reg & 0xff) << 16); | |
511 | else | |
512 | return -1; | |
b60186f8 | 513 | cont: |
5e6e3a92 BZ |
514 | pr_debug("info: SDIO FUNC1 IO port: %#x\n", adapter->ioport); |
515 | ||
516 | /* Set Host interrupt reset to read to clear */ | |
517 | if (!mwifiex_read_reg(adapter, HOST_INT_RSR_REG, ®)) | |
518 | mwifiex_write_reg(adapter, HOST_INT_RSR_REG, | |
05889f82 | 519 | reg | card->reg->sdio_int_mask); |
5e6e3a92 BZ |
520 | else |
521 | return -1; | |
522 | ||
523 | /* Dnld/Upld ready set to auto reset */ | |
05889f82 AK |
524 | if (!mwifiex_read_reg(adapter, card->reg->card_misc_cfg_reg, ®)) |
525 | mwifiex_write_reg(adapter, card->reg->card_misc_cfg_reg, | |
5e6e3a92 BZ |
526 | reg | AUTO_RE_ENABLE_INT); |
527 | else | |
528 | return -1; | |
529 | ||
530 | return 0; | |
531 | } | |
532 | ||
533 | /* | |
534 | * This function sends data to the card. | |
535 | */ | |
536 | static int mwifiex_write_data_to_card(struct mwifiex_adapter *adapter, | |
537 | u8 *payload, u32 pkt_len, u32 port) | |
538 | { | |
539 | u32 i = 0; | |
270e58e8 | 540 | int ret; |
5e6e3a92 BZ |
541 | |
542 | do { | |
572e8f3e | 543 | ret = mwifiex_write_data_sync(adapter, payload, pkt_len, port); |
5e6e3a92 BZ |
544 | if (ret) { |
545 | i++; | |
546 | dev_err(adapter->dev, "host_to_card, write iomem" | |
547 | " (%d) failed: %d\n", i, ret); | |
5dbd326c | 548 | if (mwifiex_write_reg(adapter, CONFIGURATION_REG, 0x04)) |
5e6e3a92 BZ |
549 | dev_err(adapter->dev, "write CFG reg failed\n"); |
550 | ||
551 | ret = -1; | |
552 | if (i > MAX_WRITE_IOMEM_RETRY) | |
553 | return ret; | |
554 | } | |
555 | } while (ret == -1); | |
556 | ||
557 | return ret; | |
558 | } | |
559 | ||
560 | /* | |
561 | * This function gets the read port. | |
562 | * | |
563 | * If control port bit is set in MP read bitmap, the control port | |
564 | * is returned, otherwise the current read port is returned and | |
565 | * the value is increased (provided it does not reach the maximum | |
566 | * limit, in which case it is reset to 1) | |
567 | */ | |
568 | static int mwifiex_get_rd_port(struct mwifiex_adapter *adapter, u8 *port) | |
569 | { | |
570 | struct sdio_mmc_card *card = adapter->card; | |
05889f82 | 571 | const struct mwifiex_sdio_card_reg *reg = card->reg; |
5ac253d5 | 572 | u32 rd_bitmap = card->mp_rd_bitmap; |
5e6e3a92 | 573 | |
5ac253d5 | 574 | dev_dbg(adapter->dev, "data: mp_rd_bitmap=0x%08x\n", rd_bitmap); |
5e6e3a92 | 575 | |
b60186f8 YAP |
576 | if (card->supports_sdio_new_mode) { |
577 | if (!(rd_bitmap & reg->data_port_mask)) | |
578 | return -1; | |
579 | } else { | |
580 | if (!(rd_bitmap & (CTRL_PORT_MASK | reg->data_port_mask))) | |
581 | return -1; | |
582 | } | |
5e6e3a92 | 583 | |
b60186f8 YAP |
584 | if ((card->has_control_mask) && |
585 | (card->mp_rd_bitmap & CTRL_PORT_MASK)) { | |
5ac253d5 | 586 | card->mp_rd_bitmap &= (u32) (~CTRL_PORT_MASK); |
5e6e3a92 | 587 | *port = CTRL_PORT; |
5ac253d5 | 588 | dev_dbg(adapter->dev, "data: port=%d mp_rd_bitmap=0x%08x\n", |
5dbd326c | 589 | *port, card->mp_rd_bitmap); |
e6a52030 | 590 | return 0; |
5e6e3a92 | 591 | } |
e6a52030 AK |
592 | |
593 | if (!(card->mp_rd_bitmap & (1 << card->curr_rd_port))) | |
594 | return -1; | |
595 | ||
596 | /* We are now handling the SDIO data ports */ | |
597 | card->mp_rd_bitmap &= (u32)(~(1 << card->curr_rd_port)); | |
598 | *port = card->curr_rd_port; | |
599 | ||
600 | if (++card->curr_rd_port == card->max_ports) | |
601 | card->curr_rd_port = reg->start_rd_port; | |
602 | ||
603 | dev_dbg(adapter->dev, | |
604 | "data: port=%d mp_rd_bitmap=0x%08x -> 0x%08x\n", | |
605 | *port, rd_bitmap, card->mp_rd_bitmap); | |
606 | ||
5e6e3a92 BZ |
607 | return 0; |
608 | } | |
609 | ||
610 | /* | |
611 | * This function gets the write port for data. | |
612 | * | |
613 | * The current write port is returned if available and the value is | |
614 | * increased (provided it does not reach the maximum limit, in which | |
615 | * case it is reset to 1) | |
616 | */ | |
0fc0d43b | 617 | static int mwifiex_get_wr_port_data(struct mwifiex_adapter *adapter, u32 *port) |
5e6e3a92 BZ |
618 | { |
619 | struct sdio_mmc_card *card = adapter->card; | |
b60186f8 | 620 | const struct mwifiex_sdio_card_reg *reg = card->reg; |
5ac253d5 | 621 | u32 wr_bitmap = card->mp_wr_bitmap; |
5e6e3a92 | 622 | |
5ac253d5 | 623 | dev_dbg(adapter->dev, "data: mp_wr_bitmap=0x%08x\n", wr_bitmap); |
5e6e3a92 | 624 | |
b60186f8 YAP |
625 | if (card->supports_sdio_new_mode && |
626 | !(wr_bitmap & reg->data_port_mask)) { | |
627 | adapter->data_sent = true; | |
628 | return -EBUSY; | |
629 | } else if (!card->supports_sdio_new_mode && | |
630 | !(wr_bitmap & card->mp_data_port_mask)) { | |
5e6e3a92 | 631 | return -1; |
b60186f8 | 632 | } |
5e6e3a92 BZ |
633 | |
634 | if (card->mp_wr_bitmap & (1 << card->curr_wr_port)) { | |
5ac253d5 | 635 | card->mp_wr_bitmap &= (u32) (~(1 << card->curr_wr_port)); |
5e6e3a92 | 636 | *port = card->curr_wr_port; |
b60186f8 YAP |
637 | if (((card->supports_sdio_new_mode) && |
638 | (++card->curr_wr_port == card->max_ports)) || | |
639 | ((!card->supports_sdio_new_mode) && | |
640 | (++card->curr_wr_port == card->mp_end_port))) | |
641 | card->curr_wr_port = reg->start_wr_port; | |
5e6e3a92 BZ |
642 | } else { |
643 | adapter->data_sent = true; | |
644 | return -EBUSY; | |
645 | } | |
646 | ||
b60186f8 | 647 | if ((card->has_control_mask) && (*port == CTRL_PORT)) { |
5ac253d5 AK |
648 | dev_err(adapter->dev, |
649 | "invalid data port=%d cur port=%d mp_wr_bitmap=0x%08x -> 0x%08x\n", | |
5dbd326c YAP |
650 | *port, card->curr_wr_port, wr_bitmap, |
651 | card->mp_wr_bitmap); | |
5e6e3a92 BZ |
652 | return -1; |
653 | } | |
654 | ||
5ac253d5 | 655 | dev_dbg(adapter->dev, "data: port=%d mp_wr_bitmap=0x%08x -> 0x%08x\n", |
5dbd326c | 656 | *port, wr_bitmap, card->mp_wr_bitmap); |
5e6e3a92 BZ |
657 | |
658 | return 0; | |
659 | } | |
660 | ||
661 | /* | |
662 | * This function polls the card status. | |
663 | */ | |
664 | static int | |
665 | mwifiex_sdio_poll_card_status(struct mwifiex_adapter *adapter, u8 bits) | |
666 | { | |
05889f82 | 667 | struct sdio_mmc_card *card = adapter->card; |
5e6e3a92 | 668 | u32 tries; |
ab93d4ff | 669 | u8 cs; |
5e6e3a92 BZ |
670 | |
671 | for (tries = 0; tries < MAX_POLL_TRIES; tries++) { | |
05889f82 | 672 | if (mwifiex_read_reg(adapter, card->reg->poll_reg, &cs)) |
5e6e3a92 BZ |
673 | break; |
674 | else if ((cs & bits) == bits) | |
675 | return 0; | |
676 | ||
e7891ba2 | 677 | usleep_range(10, 20); |
5e6e3a92 BZ |
678 | } |
679 | ||
5dbd326c YAP |
680 | dev_err(adapter->dev, "poll card status failed, tries = %d\n", tries); |
681 | ||
5e6e3a92 BZ |
682 | return -1; |
683 | } | |
684 | ||
685 | /* | |
686 | * This function reads the firmware status. | |
687 | */ | |
688 | static int | |
689 | mwifiex_sdio_read_fw_status(struct mwifiex_adapter *adapter, u16 *dat) | |
690 | { | |
05889f82 AK |
691 | struct sdio_mmc_card *card = adapter->card; |
692 | const struct mwifiex_sdio_card_reg *reg = card->reg; | |
ab93d4ff | 693 | u8 fws0, fws1; |
5e6e3a92 | 694 | |
05889f82 | 695 | if (mwifiex_read_reg(adapter, reg->status_reg_0, &fws0)) |
5e6e3a92 BZ |
696 | return -1; |
697 | ||
05889f82 | 698 | if (mwifiex_read_reg(adapter, reg->status_reg_1, &fws1)) |
5e6e3a92 BZ |
699 | return -1; |
700 | ||
701 | *dat = (u16) ((fws1 << 8) | fws0); | |
702 | ||
703 | return 0; | |
704 | } | |
705 | ||
706 | /* | |
707 | * This function disables the host interrupt. | |
708 | * | |
709 | * The host interrupt mask is read, the disable bit is reset and | |
710 | * written back to the card host interrupt mask register. | |
711 | */ | |
232fde06 | 712 | static void mwifiex_sdio_disable_host_int(struct mwifiex_adapter *adapter) |
5e6e3a92 | 713 | { |
232fde06 DD |
714 | struct sdio_mmc_card *card = adapter->card; |
715 | struct sdio_func *func = card->func; | |
5e6e3a92 | 716 | |
232fde06 DD |
717 | sdio_claim_host(func); |
718 | mwifiex_write_reg_locked(func, HOST_INT_MASK_REG, 0); | |
719 | sdio_release_irq(func); | |
720 | sdio_release_host(func); | |
5e6e3a92 BZ |
721 | } |
722 | ||
2cdf359a AK |
723 | /* |
724 | * This function reads the interrupt status from card. | |
725 | */ | |
726 | static void mwifiex_interrupt_status(struct mwifiex_adapter *adapter) | |
727 | { | |
728 | struct sdio_mmc_card *card = adapter->card; | |
729 | u8 sdio_ireg; | |
730 | unsigned long flags; | |
731 | ||
732 | if (mwifiex_read_data_sync(adapter, card->mp_regs, | |
733 | card->reg->max_mp_regs, | |
734 | REG_PORT | MWIFIEX_SDIO_BYTE_MODE_MASK, 0)) { | |
735 | dev_err(adapter->dev, "read mp_regs failed\n"); | |
736 | return; | |
737 | } | |
738 | ||
739 | sdio_ireg = card->mp_regs[HOST_INTSTATUS_REG]; | |
740 | if (sdio_ireg) { | |
741 | /* | |
742 | * DN_LD_HOST_INT_STATUS and/or UP_LD_HOST_INT_STATUS | |
743 | * For SDIO new mode CMD port interrupts | |
744 | * DN_LD_CMD_PORT_HOST_INT_STATUS and/or | |
745 | * UP_LD_CMD_PORT_HOST_INT_STATUS | |
746 | * Clear the interrupt status register | |
747 | */ | |
748 | dev_dbg(adapter->dev, "int: sdio_ireg = %#x\n", sdio_ireg); | |
749 | spin_lock_irqsave(&adapter->int_lock, flags); | |
750 | adapter->int_status |= sdio_ireg; | |
751 | spin_unlock_irqrestore(&adapter->int_lock, flags); | |
752 | } | |
753 | } | |
754 | ||
755 | /* | |
756 | * SDIO interrupt handler. | |
757 | * | |
758 | * This function reads the interrupt status from firmware and handles | |
759 | * the interrupt in current thread (ksdioirqd) right away. | |
760 | */ | |
761 | static void | |
762 | mwifiex_sdio_interrupt(struct sdio_func *func) | |
763 | { | |
764 | struct mwifiex_adapter *adapter; | |
765 | struct sdio_mmc_card *card; | |
766 | ||
767 | card = sdio_get_drvdata(func); | |
768 | if (!card || !card->adapter) { | |
769 | pr_debug("int: func=%p card=%p adapter=%p\n", | |
770 | func, card, card ? card->adapter : NULL); | |
771 | return; | |
772 | } | |
773 | adapter = card->adapter; | |
774 | ||
775 | if (!adapter->pps_uapsd_mode && adapter->ps_state == PS_STATE_SLEEP) | |
776 | adapter->ps_state = PS_STATE_AWAKE; | |
777 | ||
778 | mwifiex_interrupt_status(adapter); | |
779 | mwifiex_main_process(adapter); | |
780 | } | |
781 | ||
5e6e3a92 BZ |
782 | /* |
783 | * This function enables the host interrupt. | |
784 | * | |
785 | * The host interrupt enable mask is written to the card | |
786 | * host interrupt mask register. | |
787 | */ | |
788 | static int mwifiex_sdio_enable_host_int(struct mwifiex_adapter *adapter) | |
789 | { | |
05889f82 | 790 | struct sdio_mmc_card *card = adapter->card; |
232fde06 DD |
791 | struct sdio_func *func = card->func; |
792 | int ret; | |
793 | ||
794 | sdio_claim_host(func); | |
795 | ||
796 | /* Request the SDIO IRQ */ | |
797 | ret = sdio_claim_irq(func, mwifiex_sdio_interrupt); | |
798 | if (ret) { | |
799 | dev_err(adapter->dev, "claim irq failed: ret=%d\n", ret); | |
800 | goto out; | |
801 | } | |
05889f82 | 802 | |
5e6e3a92 | 803 | /* Simply write the mask to the register */ |
232fde06 DD |
804 | ret = mwifiex_write_reg_locked(func, HOST_INT_MASK_REG, |
805 | card->reg->host_int_enable); | |
806 | if (ret) { | |
5e6e3a92 | 807 | dev_err(adapter->dev, "enable host interrupt failed\n"); |
232fde06 | 808 | sdio_release_irq(func); |
5e6e3a92 | 809 | } |
232fde06 DD |
810 | |
811 | out: | |
812 | sdio_release_host(func); | |
813 | return ret; | |
5e6e3a92 BZ |
814 | } |
815 | ||
816 | /* | |
817 | * This function sends a data buffer to the card. | |
818 | */ | |
819 | static int mwifiex_sdio_card_to_host(struct mwifiex_adapter *adapter, | |
820 | u32 *type, u8 *buffer, | |
821 | u32 npayload, u32 ioport) | |
822 | { | |
270e58e8 | 823 | int ret; |
5e6e3a92 BZ |
824 | u32 nb; |
825 | ||
826 | if (!buffer) { | |
827 | dev_err(adapter->dev, "%s: buffer is NULL\n", __func__); | |
828 | return -1; | |
829 | } | |
830 | ||
572e8f3e | 831 | ret = mwifiex_read_data_sync(adapter, buffer, npayload, ioport, 1); |
5e6e3a92 BZ |
832 | |
833 | if (ret) { | |
834 | dev_err(adapter->dev, "%s: read iomem failed: %d\n", __func__, | |
5dbd326c | 835 | ret); |
5e6e3a92 BZ |
836 | return -1; |
837 | } | |
838 | ||
839 | nb = le16_to_cpu(*(__le16 *) (buffer)); | |
840 | if (nb > npayload) { | |
5dbd326c YAP |
841 | dev_err(adapter->dev, "%s: invalid packet, nb=%d npayload=%d\n", |
842 | __func__, nb, npayload); | |
5e6e3a92 BZ |
843 | return -1; |
844 | } | |
845 | ||
846 | *type = le16_to_cpu(*(__le16 *) (buffer + 2)); | |
847 | ||
848 | return ret; | |
849 | } | |
850 | ||
851 | /* | |
852 | * This function downloads the firmware to the card. | |
853 | * | |
854 | * Firmware is downloaded to the card in blocks. Every block download | |
855 | * is tested for CRC errors, and retried a number of times before | |
856 | * returning failure. | |
857 | */ | |
858 | static int mwifiex_prog_fw_w_helper(struct mwifiex_adapter *adapter, | |
859 | struct mwifiex_fw_image *fw) | |
860 | { | |
05889f82 AK |
861 | struct sdio_mmc_card *card = adapter->card; |
862 | const struct mwifiex_sdio_card_reg *reg = card->reg; | |
270e58e8 | 863 | int ret; |
5e6e3a92 BZ |
864 | u8 *firmware = fw->fw_buf; |
865 | u32 firmware_len = fw->fw_len; | |
866 | u32 offset = 0; | |
ab93d4ff | 867 | u8 base0, base1; |
5e6e3a92 BZ |
868 | u8 *fwbuf; |
869 | u16 len = 0; | |
270e58e8 | 870 | u32 txlen, tx_blocks = 0, tries; |
5e6e3a92 BZ |
871 | u32 i = 0; |
872 | ||
873 | if (!firmware_len) { | |
5dbd326c YAP |
874 | dev_err(adapter->dev, |
875 | "firmware image not found! Terminating download\n"); | |
5e6e3a92 BZ |
876 | return -1; |
877 | } | |
878 | ||
879 | dev_dbg(adapter->dev, "info: downloading FW image (%d bytes)\n", | |
5dbd326c | 880 | firmware_len); |
5e6e3a92 BZ |
881 | |
882 | /* Assume that the allocated buffer is 8-byte aligned */ | |
883 | fwbuf = kzalloc(MWIFIEX_UPLD_SIZE, GFP_KERNEL); | |
0d2e7a5c | 884 | if (!fwbuf) |
b53575ec | 885 | return -ENOMEM; |
5e6e3a92 BZ |
886 | |
887 | /* Perform firmware data transfer */ | |
888 | do { | |
889 | /* The host polls for the DN_LD_CARD_RDY and CARD_IO_READY | |
890 | bits */ | |
891 | ret = mwifiex_sdio_poll_card_status(adapter, CARD_IO_READY | | |
892 | DN_LD_CARD_RDY); | |
893 | if (ret) { | |
894 | dev_err(adapter->dev, "FW download with helper:" | |
5dbd326c | 895 | " poll status timeout @ %d\n", offset); |
5e6e3a92 BZ |
896 | goto done; |
897 | } | |
898 | ||
899 | /* More data? */ | |
900 | if (offset >= firmware_len) | |
901 | break; | |
902 | ||
903 | for (tries = 0; tries < MAX_POLL_TRIES; tries++) { | |
05889f82 | 904 | ret = mwifiex_read_reg(adapter, reg->base_0_reg, |
5e6e3a92 BZ |
905 | &base0); |
906 | if (ret) { | |
5dbd326c YAP |
907 | dev_err(adapter->dev, |
908 | "dev BASE0 register read failed: " | |
909 | "base0=%#04X(%d). Terminating dnld\n", | |
910 | base0, base0); | |
5e6e3a92 BZ |
911 | goto done; |
912 | } | |
05889f82 | 913 | ret = mwifiex_read_reg(adapter, reg->base_1_reg, |
5e6e3a92 BZ |
914 | &base1); |
915 | if (ret) { | |
5dbd326c YAP |
916 | dev_err(adapter->dev, |
917 | "dev BASE1 register read failed: " | |
918 | "base1=%#04X(%d). Terminating dnld\n", | |
919 | base1, base1); | |
5e6e3a92 BZ |
920 | goto done; |
921 | } | |
922 | len = (u16) (((base1 & 0xff) << 8) | (base0 & 0xff)); | |
923 | ||
924 | if (len) | |
925 | break; | |
926 | ||
e7891ba2 | 927 | usleep_range(10, 20); |
5e6e3a92 BZ |
928 | } |
929 | ||
930 | if (!len) { | |
931 | break; | |
932 | } else if (len > MWIFIEX_UPLD_SIZE) { | |
5dbd326c YAP |
933 | dev_err(adapter->dev, |
934 | "FW dnld failed @ %d, invalid length %d\n", | |
935 | offset, len); | |
5e6e3a92 BZ |
936 | ret = -1; |
937 | goto done; | |
938 | } | |
939 | ||
940 | txlen = len; | |
941 | ||
942 | if (len & BIT(0)) { | |
943 | i++; | |
944 | if (i > MAX_WRITE_IOMEM_RETRY) { | |
5dbd326c YAP |
945 | dev_err(adapter->dev, |
946 | "FW dnld failed @ %d, over max retry\n", | |
947 | offset); | |
5e6e3a92 BZ |
948 | ret = -1; |
949 | goto done; | |
950 | } | |
951 | dev_err(adapter->dev, "CRC indicated by the helper:" | |
5dbd326c | 952 | " len = 0x%04X, txlen = %d\n", len, txlen); |
5e6e3a92 BZ |
953 | len &= ~BIT(0); |
954 | /* Setting this to 0 to resend from same offset */ | |
955 | txlen = 0; | |
956 | } else { | |
957 | i = 0; | |
958 | ||
959 | /* Set blocksize to transfer - checking for last | |
960 | block */ | |
961 | if (firmware_len - offset < txlen) | |
962 | txlen = firmware_len - offset; | |
963 | ||
5dbd326c YAP |
964 | tx_blocks = (txlen + MWIFIEX_SDIO_BLOCK_SIZE - 1) |
965 | / MWIFIEX_SDIO_BLOCK_SIZE; | |
5e6e3a92 BZ |
966 | |
967 | /* Copy payload to buffer */ | |
968 | memmove(fwbuf, &firmware[offset], txlen); | |
969 | } | |
970 | ||
971 | ret = mwifiex_write_data_sync(adapter, fwbuf, tx_blocks * | |
972 | MWIFIEX_SDIO_BLOCK_SIZE, | |
572e8f3e | 973 | adapter->ioport); |
5e6e3a92 | 974 | if (ret) { |
5dbd326c YAP |
975 | dev_err(adapter->dev, |
976 | "FW download, write iomem (%d) failed @ %d\n", | |
977 | i, offset); | |
5e6e3a92 BZ |
978 | if (mwifiex_write_reg(adapter, CONFIGURATION_REG, 0x04)) |
979 | dev_err(adapter->dev, "write CFG reg failed\n"); | |
980 | ||
981 | ret = -1; | |
982 | goto done; | |
983 | } | |
984 | ||
985 | offset += txlen; | |
986 | } while (true); | |
987 | ||
988 | dev_dbg(adapter->dev, "info: FW download over, size %d bytes\n", | |
5dbd326c | 989 | offset); |
5e6e3a92 BZ |
990 | |
991 | ret = 0; | |
992 | done: | |
993 | kfree(fwbuf); | |
994 | return ret; | |
995 | } | |
996 | ||
997 | /* | |
998 | * This function checks the firmware status in card. | |
999 | * | |
1000 | * The winner interface is also determined by this function. | |
1001 | */ | |
1002 | static int mwifiex_check_fw_status(struct mwifiex_adapter *adapter, | |
d930faee | 1003 | u32 poll_num) |
5e6e3a92 | 1004 | { |
05889f82 | 1005 | struct sdio_mmc_card *card = adapter->card; |
5e6e3a92 BZ |
1006 | int ret = 0; |
1007 | u16 firmware_stat; | |
1008 | u32 tries; | |
ab93d4ff | 1009 | u8 winner_status; |
5e6e3a92 BZ |
1010 | |
1011 | /* Wait for firmware initialization event */ | |
1012 | for (tries = 0; tries < poll_num; tries++) { | |
1013 | ret = mwifiex_sdio_read_fw_status(adapter, &firmware_stat); | |
1014 | if (ret) | |
1015 | continue; | |
d930faee | 1016 | if (firmware_stat == FIRMWARE_READY_SDIO) { |
5e6e3a92 BZ |
1017 | ret = 0; |
1018 | break; | |
1019 | } else { | |
a76b20e5 | 1020 | msleep(100); |
5e6e3a92 BZ |
1021 | ret = -1; |
1022 | } | |
1023 | } | |
1024 | ||
d930faee | 1025 | if (ret) { |
5e6e3a92 | 1026 | if (mwifiex_read_reg |
05889f82 | 1027 | (adapter, card->reg->status_reg_0, &winner_status)) |
5e6e3a92 BZ |
1028 | winner_status = 0; |
1029 | ||
1030 | if (winner_status) | |
d930faee | 1031 | adapter->winner = 0; |
5e6e3a92 | 1032 | else |
d930faee | 1033 | adapter->winner = 1; |
5e6e3a92 BZ |
1034 | } |
1035 | return ret; | |
1036 | } | |
1037 | ||
5e6e3a92 BZ |
1038 | /* |
1039 | * This function decodes a received packet. | |
1040 | * | |
1041 | * Based on the type, the packet is treated as either a data, or | |
1042 | * a command response, or an event, and the correct handler | |
1043 | * function is invoked. | |
1044 | */ | |
1045 | static int mwifiex_decode_rx_packet(struct mwifiex_adapter *adapter, | |
1046 | struct sk_buff *skb, u32 upld_typ) | |
1047 | { | |
1048 | u8 *cmd_buf; | |
d03b4aa7 AP |
1049 | __le16 *curr_ptr = (__le16 *)skb->data; |
1050 | u16 pkt_len = le16_to_cpu(*curr_ptr); | |
5e6e3a92 | 1051 | |
d03b4aa7 | 1052 | skb_trim(skb, pkt_len); |
5e6e3a92 BZ |
1053 | skb_pull(skb, INTF_HEADER_LEN); |
1054 | ||
1055 | switch (upld_typ) { | |
1056 | case MWIFIEX_TYPE_DATA: | |
1057 | dev_dbg(adapter->dev, "info: --- Rx: Data packet ---\n"); | |
1058 | mwifiex_handle_rx_packet(adapter, skb); | |
1059 | break; | |
1060 | ||
1061 | case MWIFIEX_TYPE_CMD: | |
1062 | dev_dbg(adapter->dev, "info: --- Rx: Cmd Response ---\n"); | |
1063 | /* take care of curr_cmd = NULL case */ | |
1064 | if (!adapter->curr_cmd) { | |
1065 | cmd_buf = adapter->upld_buf; | |
1066 | ||
1067 | if (adapter->ps_state == PS_STATE_SLEEP_CFM) | |
1068 | mwifiex_process_sleep_confirm_resp(adapter, | |
5dbd326c YAP |
1069 | skb->data, |
1070 | skb->len); | |
5e6e3a92 | 1071 | |
5dbd326c YAP |
1072 | memcpy(cmd_buf, skb->data, |
1073 | min_t(u32, MWIFIEX_SIZE_OF_CMD_BUFFER, | |
1074 | skb->len)); | |
5e6e3a92 BZ |
1075 | |
1076 | dev_kfree_skb_any(skb); | |
1077 | } else { | |
1078 | adapter->cmd_resp_received = true; | |
1079 | adapter->curr_cmd->resp_skb = skb; | |
1080 | } | |
1081 | break; | |
1082 | ||
1083 | case MWIFIEX_TYPE_EVENT: | |
1084 | dev_dbg(adapter->dev, "info: --- Rx: Event ---\n"); | |
cfcd926e | 1085 | adapter->event_cause = le32_to_cpu(*(__le32 *) skb->data); |
5e6e3a92 | 1086 | |
5e6e3a92 | 1087 | if ((skb->len > 0) && (skb->len < MAX_EVENT_SIZE)) |
e80c81dc AK |
1088 | memcpy(adapter->event_body, |
1089 | skb->data + MWIFIEX_EVENT_HEADER_LEN, | |
1090 | skb->len); | |
5e6e3a92 BZ |
1091 | |
1092 | /* event cause has been saved to adapter->event_cause */ | |
1093 | adapter->event_received = true; | |
1094 | adapter->event_skb = skb; | |
1095 | ||
1096 | break; | |
1097 | ||
1098 | default: | |
1099 | dev_err(adapter->dev, "unknown upload type %#x\n", upld_typ); | |
1100 | dev_kfree_skb_any(skb); | |
1101 | break; | |
1102 | } | |
1103 | ||
1104 | return 0; | |
1105 | } | |
1106 | ||
1107 | /* | |
1108 | * This function transfers received packets from card to driver, performing | |
1109 | * aggregation if required. | |
1110 | * | |
1111 | * For data received on control port, or if aggregation is disabled, the | |
1112 | * received buffers are uploaded as separate packets. However, if aggregation | |
1113 | * is enabled and required, the buffers are copied onto an aggregation buffer, | |
1114 | * provided there is space left, processed and finally uploaded. | |
1115 | */ | |
1116 | static int mwifiex_sdio_card_to_host_mp_aggr(struct mwifiex_adapter *adapter, | |
1117 | struct sk_buff *skb, u8 port) | |
1118 | { | |
1119 | struct sdio_mmc_card *card = adapter->card; | |
1120 | s32 f_do_rx_aggr = 0; | |
1121 | s32 f_do_rx_cur = 0; | |
1122 | s32 f_aggr_cur = 0; | |
1123 | struct sk_buff *skb_deaggr; | |
270e58e8 | 1124 | u32 pind; |
0fc0d43b | 1125 | u32 pkt_len, pkt_type, mport; |
5e6e3a92 BZ |
1126 | u8 *curr_ptr; |
1127 | u32 rx_len = skb->len; | |
1128 | ||
b60186f8 | 1129 | if ((card->has_control_mask) && (port == CTRL_PORT)) { |
5e6e3a92 BZ |
1130 | /* Read the command Resp without aggr */ |
1131 | dev_dbg(adapter->dev, "info: %s: no aggregation for cmd " | |
5dbd326c | 1132 | "response\n", __func__); |
5e6e3a92 BZ |
1133 | |
1134 | f_do_rx_cur = 1; | |
1135 | goto rx_curr_single; | |
1136 | } | |
1137 | ||
1138 | if (!card->mpa_rx.enabled) { | |
1139 | dev_dbg(adapter->dev, "info: %s: rx aggregation disabled\n", | |
5dbd326c | 1140 | __func__); |
5e6e3a92 BZ |
1141 | |
1142 | f_do_rx_cur = 1; | |
1143 | goto rx_curr_single; | |
1144 | } | |
1145 | ||
b60186f8 YAP |
1146 | if ((!card->has_control_mask && (card->mp_rd_bitmap & |
1147 | card->reg->data_port_mask)) || | |
1148 | (card->has_control_mask && (card->mp_rd_bitmap & | |
1149 | (~((u32) CTRL_PORT_MASK))))) { | |
5e6e3a92 BZ |
1150 | /* Some more data RX pending */ |
1151 | dev_dbg(adapter->dev, "info: %s: not last packet\n", __func__); | |
1152 | ||
1153 | if (MP_RX_AGGR_IN_PROGRESS(card)) { | |
1154 | if (MP_RX_AGGR_BUF_HAS_ROOM(card, skb->len)) { | |
1155 | f_aggr_cur = 1; | |
1156 | } else { | |
1157 | /* No room in Aggr buf, do rx aggr now */ | |
1158 | f_do_rx_aggr = 1; | |
1159 | f_do_rx_cur = 1; | |
1160 | } | |
1161 | } else { | |
1162 | /* Rx aggr not in progress */ | |
1163 | f_aggr_cur = 1; | |
1164 | } | |
1165 | ||
1166 | } else { | |
1167 | /* No more data RX pending */ | |
1168 | dev_dbg(adapter->dev, "info: %s: last packet\n", __func__); | |
1169 | ||
1170 | if (MP_RX_AGGR_IN_PROGRESS(card)) { | |
1171 | f_do_rx_aggr = 1; | |
1172 | if (MP_RX_AGGR_BUF_HAS_ROOM(card, skb->len)) | |
1173 | f_aggr_cur = 1; | |
1174 | else | |
1175 | /* No room in Aggr buf, do rx aggr now */ | |
1176 | f_do_rx_cur = 1; | |
1177 | } else { | |
1178 | f_do_rx_cur = 1; | |
1179 | } | |
1180 | } | |
1181 | ||
1182 | if (f_aggr_cur) { | |
1183 | dev_dbg(adapter->dev, "info: current packet aggregation\n"); | |
1184 | /* Curr pkt can be aggregated */ | |
c23b7c8f | 1185 | mp_rx_aggr_setup(card, skb, port); |
5e6e3a92 BZ |
1186 | |
1187 | if (MP_RX_AGGR_PKT_LIMIT_REACHED(card) || | |
c23b7c8f | 1188 | mp_rx_aggr_port_limit_reached(card)) { |
5e6e3a92 | 1189 | dev_dbg(adapter->dev, "info: %s: aggregated packet " |
5dbd326c | 1190 | "limit reached\n", __func__); |
5e6e3a92 BZ |
1191 | /* No more pkts allowed in Aggr buf, rx it */ |
1192 | f_do_rx_aggr = 1; | |
1193 | } | |
1194 | } | |
1195 | ||
1196 | if (f_do_rx_aggr) { | |
1197 | /* do aggr RX now */ | |
1198 | dev_dbg(adapter->dev, "info: do_rx_aggr: num of packets: %d\n", | |
5dbd326c | 1199 | card->mpa_rx.pkt_cnt); |
5e6e3a92 | 1200 | |
b60186f8 YAP |
1201 | if (card->supports_sdio_new_mode) { |
1202 | int i; | |
1203 | u32 port_count; | |
1204 | ||
1205 | for (i = 0, port_count = 0; i < card->max_ports; i++) | |
1206 | if (card->mpa_rx.ports & BIT(i)) | |
1207 | port_count++; | |
1208 | ||
1209 | /* Reading data from "start_port + 0" to "start_port + | |
1210 | * port_count -1", so decrease the count by 1 | |
1211 | */ | |
1212 | port_count--; | |
1213 | mport = (adapter->ioport | SDIO_MPA_ADDR_BASE | | |
1214 | (port_count << 8)) + card->mpa_rx.start_port; | |
1215 | } else { | |
1216 | mport = (adapter->ioport | SDIO_MPA_ADDR_BASE | | |
1217 | (card->mpa_rx.ports << 4)) + | |
1218 | card->mpa_rx.start_port; | |
1219 | } | |
0fc0d43b | 1220 | |
5e6e3a92 | 1221 | if (mwifiex_read_data_sync(adapter, card->mpa_rx.buf, |
0fc0d43b | 1222 | card->mpa_rx.buf_len, mport, 1)) |
17a60b48 | 1223 | goto error; |
5e6e3a92 BZ |
1224 | |
1225 | curr_ptr = card->mpa_rx.buf; | |
1226 | ||
1227 | for (pind = 0; pind < card->mpa_rx.pkt_cnt; pind++) { | |
1228 | ||
1229 | /* get curr PKT len & type */ | |
cfcd926e TW |
1230 | pkt_len = le16_to_cpu(*(__le16 *) &curr_ptr[0]); |
1231 | pkt_type = le16_to_cpu(*(__le16 *) &curr_ptr[2]); | |
5e6e3a92 BZ |
1232 | |
1233 | /* copy pkt to deaggr buf */ | |
1234 | skb_deaggr = card->mpa_rx.skb_arr[pind]; | |
1235 | ||
1236 | if ((pkt_type == MWIFIEX_TYPE_DATA) && (pkt_len <= | |
1237 | card->mpa_rx.len_arr[pind])) { | |
1238 | ||
1239 | memcpy(skb_deaggr->data, curr_ptr, pkt_len); | |
1240 | ||
1241 | skb_trim(skb_deaggr, pkt_len); | |
1242 | ||
1243 | /* Process de-aggr packet */ | |
1244 | mwifiex_decode_rx_packet(adapter, skb_deaggr, | |
1245 | pkt_type); | |
1246 | } else { | |
1247 | dev_err(adapter->dev, "wrong aggr pkt:" | |
1248 | " type=%d len=%d max_len=%d\n", | |
1249 | pkt_type, pkt_len, | |
1250 | card->mpa_rx.len_arr[pind]); | |
1251 | dev_kfree_skb_any(skb_deaggr); | |
1252 | } | |
1253 | curr_ptr += card->mpa_rx.len_arr[pind]; | |
1254 | } | |
1255 | MP_RX_AGGR_BUF_RESET(card); | |
1256 | } | |
1257 | ||
1258 | rx_curr_single: | |
1259 | if (f_do_rx_cur) { | |
1260 | dev_dbg(adapter->dev, "info: RX: port: %d, rx_len: %d\n", | |
1261 | port, rx_len); | |
1262 | ||
1263 | if (mwifiex_sdio_card_to_host(adapter, &pkt_type, | |
1264 | skb->data, skb->len, | |
1265 | adapter->ioport + port)) | |
17a60b48 | 1266 | goto error; |
5e6e3a92 BZ |
1267 | |
1268 | mwifiex_decode_rx_packet(adapter, skb, pkt_type); | |
1269 | } | |
1270 | ||
1271 | return 0; | |
17a60b48 AP |
1272 | |
1273 | error: | |
1274 | if (MP_RX_AGGR_IN_PROGRESS(card)) { | |
1275 | /* Multiport-aggregation transfer failed - cleanup */ | |
1276 | for (pind = 0; pind < card->mpa_rx.pkt_cnt; pind++) { | |
1277 | /* copy pkt to deaggr buf */ | |
1278 | skb_deaggr = card->mpa_rx.skb_arr[pind]; | |
1279 | dev_kfree_skb_any(skb_deaggr); | |
1280 | } | |
1281 | MP_RX_AGGR_BUF_RESET(card); | |
1282 | } | |
1283 | ||
1284 | if (f_do_rx_cur) | |
1285 | /* Single transfer pending. Free curr buff also */ | |
1286 | dev_kfree_skb_any(skb); | |
1287 | ||
1288 | return -1; | |
5e6e3a92 BZ |
1289 | } |
1290 | ||
1291 | /* | |
1292 | * This function checks the current interrupt status. | |
1293 | * | |
1294 | * The following interrupts are checked and handled by this function - | |
1295 | * - Data sent | |
1296 | * - Command sent | |
1297 | * - Packets received | |
1298 | * | |
1299 | * Since the firmware does not generate download ready interrupt if the | |
1300 | * port updated is command port only, command sent interrupt checking | |
1301 | * should be done manually, and for every SDIO interrupt. | |
1302 | * | |
1303 | * In case of Rx packets received, the packets are uploaded from card to | |
1304 | * host and processed accordingly. | |
1305 | */ | |
1306 | static int mwifiex_process_int_status(struct mwifiex_adapter *adapter) | |
1307 | { | |
1308 | struct sdio_mmc_card *card = adapter->card; | |
05889f82 | 1309 | const struct mwifiex_sdio_card_reg *reg = card->reg; |
5e6e3a92 BZ |
1310 | int ret = 0; |
1311 | u8 sdio_ireg; | |
270e58e8 | 1312 | struct sk_buff *skb; |
5e6e3a92 BZ |
1313 | u8 port = CTRL_PORT; |
1314 | u32 len_reg_l, len_reg_u; | |
1315 | u32 rx_blocks; | |
1316 | u16 rx_len; | |
1317 | unsigned long flags; | |
b60186f8 YAP |
1318 | u32 bitmap; |
1319 | u8 cr; | |
5e6e3a92 BZ |
1320 | |
1321 | spin_lock_irqsave(&adapter->int_lock, flags); | |
1322 | sdio_ireg = adapter->int_status; | |
1323 | adapter->int_status = 0; | |
1324 | spin_unlock_irqrestore(&adapter->int_lock, flags); | |
1325 | ||
1326 | if (!sdio_ireg) | |
1327 | return ret; | |
1328 | ||
b60186f8 YAP |
1329 | /* Following interrupt is only for SDIO new mode */ |
1330 | if (sdio_ireg & DN_LD_CMD_PORT_HOST_INT_STATUS && adapter->cmd_sent) | |
1331 | adapter->cmd_sent = false; | |
1332 | ||
1333 | /* Following interrupt is only for SDIO new mode */ | |
1334 | if (sdio_ireg & UP_LD_CMD_PORT_HOST_INT_STATUS) { | |
1335 | u32 pkt_type; | |
1336 | ||
1337 | /* read the len of control packet */ | |
1338 | rx_len = card->mp_regs[CMD_RD_LEN_1] << 8; | |
1339 | rx_len |= (u16) card->mp_regs[CMD_RD_LEN_0]; | |
1340 | rx_blocks = DIV_ROUND_UP(rx_len, MWIFIEX_SDIO_BLOCK_SIZE); | |
1341 | if (rx_len <= INTF_HEADER_LEN || | |
1342 | (rx_blocks * MWIFIEX_SDIO_BLOCK_SIZE) > | |
1343 | MWIFIEX_RX_DATA_BUF_SIZE) | |
1344 | return -1; | |
1345 | rx_len = (u16) (rx_blocks * MWIFIEX_SDIO_BLOCK_SIZE); | |
1346 | ||
1347 | skb = dev_alloc_skb(rx_len); | |
1348 | if (!skb) | |
1349 | return -1; | |
1350 | ||
1351 | skb_put(skb, rx_len); | |
1352 | ||
1353 | if (mwifiex_sdio_card_to_host(adapter, &pkt_type, skb->data, | |
1354 | skb->len, adapter->ioport | | |
1355 | CMD_PORT_SLCT)) { | |
1356 | dev_err(adapter->dev, | |
1357 | "%s: failed to card_to_host", __func__); | |
1358 | dev_kfree_skb_any(skb); | |
1359 | goto term_cmd; | |
1360 | } | |
1361 | ||
1362 | if ((pkt_type != MWIFIEX_TYPE_CMD) && | |
1363 | (pkt_type != MWIFIEX_TYPE_EVENT)) | |
1364 | dev_err(adapter->dev, | |
1365 | "%s:Received wrong packet on cmd port", | |
1366 | __func__); | |
1367 | ||
1368 | mwifiex_decode_rx_packet(adapter, skb, pkt_type); | |
1369 | } | |
1370 | ||
5e6e3a92 | 1371 | if (sdio_ireg & DN_LD_HOST_INT_STATUS) { |
b60186f8 YAP |
1372 | bitmap = (u32) card->mp_regs[reg->wr_bitmap_l]; |
1373 | bitmap |= ((u32) card->mp_regs[reg->wr_bitmap_u]) << 8; | |
1374 | if (card->supports_sdio_new_mode) { | |
1375 | bitmap |= | |
1376 | ((u32) card->mp_regs[reg->wr_bitmap_1l]) << 16; | |
1377 | bitmap |= | |
1378 | ((u32) card->mp_regs[reg->wr_bitmap_1u]) << 24; | |
1379 | } | |
1380 | card->mp_wr_bitmap = bitmap; | |
1381 | ||
1382 | dev_dbg(adapter->dev, "int: DNLD: wr_bitmap=0x%x\n", | |
5dbd326c | 1383 | card->mp_wr_bitmap); |
5e6e3a92 BZ |
1384 | if (adapter->data_sent && |
1385 | (card->mp_wr_bitmap & card->mp_data_port_mask)) { | |
1386 | dev_dbg(adapter->dev, | |
1387 | "info: <--- Tx DONE Interrupt --->\n"); | |
1388 | adapter->data_sent = false; | |
1389 | } | |
1390 | } | |
1391 | ||
1392 | /* As firmware will not generate download ready interrupt if the port | |
1393 | updated is command port only, cmd_sent should be done for any SDIO | |
1394 | interrupt. */ | |
b60186f8 | 1395 | if (card->has_control_mask && adapter->cmd_sent) { |
5e6e3a92 BZ |
1396 | /* Check if firmware has attach buffer at command port and |
1397 | update just that in wr_bit_map. */ | |
1398 | card->mp_wr_bitmap |= | |
05889f82 | 1399 | (u32) card->mp_regs[reg->wr_bitmap_l] & CTRL_PORT_MASK; |
5e6e3a92 BZ |
1400 | if (card->mp_wr_bitmap & CTRL_PORT_MASK) |
1401 | adapter->cmd_sent = false; | |
1402 | } | |
1403 | ||
1404 | dev_dbg(adapter->dev, "info: cmd_sent=%d data_sent=%d\n", | |
5dbd326c | 1405 | adapter->cmd_sent, adapter->data_sent); |
5e6e3a92 | 1406 | if (sdio_ireg & UP_LD_HOST_INT_STATUS) { |
b60186f8 YAP |
1407 | bitmap = (u32) card->mp_regs[reg->rd_bitmap_l]; |
1408 | bitmap |= ((u32) card->mp_regs[reg->rd_bitmap_u]) << 8; | |
1409 | if (card->supports_sdio_new_mode) { | |
1410 | bitmap |= | |
1411 | ((u32) card->mp_regs[reg->rd_bitmap_1l]) << 16; | |
1412 | bitmap |= | |
1413 | ((u32) card->mp_regs[reg->rd_bitmap_1u]) << 24; | |
1414 | } | |
1415 | card->mp_rd_bitmap = bitmap; | |
1416 | dev_dbg(adapter->dev, "int: UPLD: rd_bitmap=0x%x\n", | |
5dbd326c | 1417 | card->mp_rd_bitmap); |
5e6e3a92 BZ |
1418 | |
1419 | while (true) { | |
1420 | ret = mwifiex_get_rd_port(adapter, &port); | |
1421 | if (ret) { | |
1422 | dev_dbg(adapter->dev, | |
1423 | "info: no more rd_port available\n"); | |
1424 | break; | |
1425 | } | |
05889f82 AK |
1426 | len_reg_l = reg->rd_len_p0_l + (port << 1); |
1427 | len_reg_u = reg->rd_len_p0_u + (port << 1); | |
5e6e3a92 BZ |
1428 | rx_len = ((u16) card->mp_regs[len_reg_u]) << 8; |
1429 | rx_len |= (u16) card->mp_regs[len_reg_l]; | |
1430 | dev_dbg(adapter->dev, "info: RX: port=%d rx_len=%u\n", | |
5dbd326c | 1431 | port, rx_len); |
5e6e3a92 BZ |
1432 | rx_blocks = |
1433 | (rx_len + MWIFIEX_SDIO_BLOCK_SIZE - | |
1434 | 1) / MWIFIEX_SDIO_BLOCK_SIZE; | |
5dbd326c YAP |
1435 | if (rx_len <= INTF_HEADER_LEN || |
1436 | (rx_blocks * MWIFIEX_SDIO_BLOCK_SIZE) > | |
1437 | MWIFIEX_RX_DATA_BUF_SIZE) { | |
5e6e3a92 | 1438 | dev_err(adapter->dev, "invalid rx_len=%d\n", |
5dbd326c | 1439 | rx_len); |
5e6e3a92 BZ |
1440 | return -1; |
1441 | } | |
1442 | rx_len = (u16) (rx_blocks * MWIFIEX_SDIO_BLOCK_SIZE); | |
1443 | ||
1444 | skb = dev_alloc_skb(rx_len); | |
1445 | ||
1446 | if (!skb) { | |
1447 | dev_err(adapter->dev, "%s: failed to alloc skb", | |
5dbd326c | 1448 | __func__); |
5e6e3a92 BZ |
1449 | return -1; |
1450 | } | |
1451 | ||
1452 | skb_put(skb, rx_len); | |
1453 | ||
1454 | dev_dbg(adapter->dev, "info: rx_len = %d skb->len = %d\n", | |
5dbd326c | 1455 | rx_len, skb->len); |
5e6e3a92 BZ |
1456 | |
1457 | if (mwifiex_sdio_card_to_host_mp_aggr(adapter, skb, | |
1458 | port)) { | |
5e6e3a92 | 1459 | dev_err(adapter->dev, "card_to_host_mpa failed:" |
5dbd326c | 1460 | " int status=%#x\n", sdio_ireg); |
b60186f8 | 1461 | goto term_cmd; |
5e6e3a92 BZ |
1462 | } |
1463 | } | |
1464 | } | |
1465 | ||
1466 | return 0; | |
b60186f8 YAP |
1467 | |
1468 | term_cmd: | |
1469 | /* terminate cmd */ | |
1470 | if (mwifiex_read_reg(adapter, CONFIGURATION_REG, &cr)) | |
1471 | dev_err(adapter->dev, "read CFG reg failed\n"); | |
1472 | else | |
1473 | dev_dbg(adapter->dev, "info: CFG reg val = %d\n", cr); | |
1474 | ||
1475 | if (mwifiex_write_reg(adapter, CONFIGURATION_REG, (cr | 0x04))) | |
1476 | dev_err(adapter->dev, "write CFG reg failed\n"); | |
1477 | else | |
1478 | dev_dbg(adapter->dev, "info: write success\n"); | |
1479 | ||
1480 | if (mwifiex_read_reg(adapter, CONFIGURATION_REG, &cr)) | |
1481 | dev_err(adapter->dev, "read CFG reg failed\n"); | |
1482 | else | |
1483 | dev_dbg(adapter->dev, "info: CFG reg val =%x\n", cr); | |
1484 | ||
1485 | return -1; | |
5e6e3a92 BZ |
1486 | } |
1487 | ||
1488 | /* | |
1489 | * This function aggregates transmission buffers in driver and downloads | |
1490 | * the aggregated packet to card. | |
1491 | * | |
1492 | * The individual packets are aggregated by copying into an aggregation | |
1493 | * buffer and then downloaded to the card. Previous unsent packets in the | |
1494 | * aggregation buffer are pre-copied first before new packets are added. | |
1495 | * Aggregation is done till there is space left in the aggregation buffer, | |
1496 | * or till new packets are available. | |
1497 | * | |
1498 | * The function will only download the packet to the card when aggregation | |
1499 | * stops, otherwise it will just aggregate the packet in aggregation buffer | |
1500 | * and return. | |
1501 | */ | |
1502 | static int mwifiex_host_to_card_mp_aggr(struct mwifiex_adapter *adapter, | |
0fc0d43b | 1503 | u8 *payload, u32 pkt_len, u32 port, |
5e6e3a92 BZ |
1504 | u32 next_pkt_len) |
1505 | { | |
1506 | struct sdio_mmc_card *card = adapter->card; | |
1507 | int ret = 0; | |
1508 | s32 f_send_aggr_buf = 0; | |
1509 | s32 f_send_cur_buf = 0; | |
1510 | s32 f_precopy_cur_buf = 0; | |
1511 | s32 f_postcopy_cur_buf = 0; | |
0fc0d43b | 1512 | u32 mport; |
5e6e3a92 | 1513 | |
b60186f8 YAP |
1514 | if (!card->mpa_tx.enabled || |
1515 | (card->has_control_mask && (port == CTRL_PORT)) || | |
1516 | (card->supports_sdio_new_mode && (port == CMD_PORT_SLCT))) { | |
5e6e3a92 | 1517 | dev_dbg(adapter->dev, "info: %s: tx aggregation disabled\n", |
5dbd326c | 1518 | __func__); |
5e6e3a92 BZ |
1519 | |
1520 | f_send_cur_buf = 1; | |
1521 | goto tx_curr_single; | |
1522 | } | |
1523 | ||
1524 | if (next_pkt_len) { | |
1525 | /* More pkt in TX queue */ | |
1526 | dev_dbg(adapter->dev, "info: %s: more packets in queue.\n", | |
5dbd326c | 1527 | __func__); |
5e6e3a92 BZ |
1528 | |
1529 | if (MP_TX_AGGR_IN_PROGRESS(card)) { | |
c23b7c8f | 1530 | if (!mp_tx_aggr_port_limit_reached(card) && |
5e6e3a92 BZ |
1531 | MP_TX_AGGR_BUF_HAS_ROOM(card, pkt_len)) { |
1532 | f_precopy_cur_buf = 1; | |
1533 | ||
1534 | if (!(card->mp_wr_bitmap & | |
5dbd326c YAP |
1535 | (1 << card->curr_wr_port)) || |
1536 | !MP_TX_AGGR_BUF_HAS_ROOM( | |
1537 | card, pkt_len + next_pkt_len)) | |
5e6e3a92 BZ |
1538 | f_send_aggr_buf = 1; |
1539 | } else { | |
1540 | /* No room in Aggr buf, send it */ | |
1541 | f_send_aggr_buf = 1; | |
1542 | ||
c23b7c8f | 1543 | if (mp_tx_aggr_port_limit_reached(card) || |
5e6e3a92 BZ |
1544 | !(card->mp_wr_bitmap & |
1545 | (1 << card->curr_wr_port))) | |
1546 | f_send_cur_buf = 1; | |
1547 | else | |
1548 | f_postcopy_cur_buf = 1; | |
1549 | } | |
1550 | } else { | |
5dbd326c YAP |
1551 | if (MP_TX_AGGR_BUF_HAS_ROOM(card, pkt_len) && |
1552 | (card->mp_wr_bitmap & (1 << card->curr_wr_port))) | |
5e6e3a92 BZ |
1553 | f_precopy_cur_buf = 1; |
1554 | else | |
1555 | f_send_cur_buf = 1; | |
1556 | } | |
1557 | } else { | |
1558 | /* Last pkt in TX queue */ | |
1559 | dev_dbg(adapter->dev, "info: %s: Last packet in Tx Queue.\n", | |
5dbd326c | 1560 | __func__); |
5e6e3a92 BZ |
1561 | |
1562 | if (MP_TX_AGGR_IN_PROGRESS(card)) { | |
1563 | /* some packs in Aggr buf already */ | |
1564 | f_send_aggr_buf = 1; | |
1565 | ||
1566 | if (MP_TX_AGGR_BUF_HAS_ROOM(card, pkt_len)) | |
1567 | f_precopy_cur_buf = 1; | |
1568 | else | |
1569 | /* No room in Aggr buf, send it */ | |
1570 | f_send_cur_buf = 1; | |
1571 | } else { | |
1572 | f_send_cur_buf = 1; | |
1573 | } | |
1574 | } | |
1575 | ||
1576 | if (f_precopy_cur_buf) { | |
1577 | dev_dbg(adapter->dev, "data: %s: precopy current buffer\n", | |
5dbd326c | 1578 | __func__); |
5e6e3a92 BZ |
1579 | MP_TX_AGGR_BUF_PUT(card, payload, pkt_len, port); |
1580 | ||
1581 | if (MP_TX_AGGR_PKT_LIMIT_REACHED(card) || | |
c23b7c8f | 1582 | mp_tx_aggr_port_limit_reached(card)) |
5e6e3a92 BZ |
1583 | /* No more pkts allowed in Aggr buf, send it */ |
1584 | f_send_aggr_buf = 1; | |
1585 | } | |
1586 | ||
1587 | if (f_send_aggr_buf) { | |
1588 | dev_dbg(adapter->dev, "data: %s: send aggr buffer: %d %d\n", | |
5dbd326c | 1589 | __func__, |
5e6e3a92 | 1590 | card->mpa_tx.start_port, card->mpa_tx.ports); |
b60186f8 YAP |
1591 | if (card->supports_sdio_new_mode) { |
1592 | u32 port_count; | |
1593 | int i; | |
1594 | ||
1595 | for (i = 0, port_count = 0; i < card->max_ports; i++) | |
1596 | if (card->mpa_tx.ports & BIT(i)) | |
1597 | port_count++; | |
1598 | ||
1599 | /* Writing data from "start_port + 0" to "start_port + | |
1600 | * port_count -1", so decrease the count by 1 | |
1601 | */ | |
1602 | port_count--; | |
1603 | mport = (adapter->ioport | SDIO_MPA_ADDR_BASE | | |
1604 | (port_count << 8)) + card->mpa_tx.start_port; | |
1605 | } else { | |
1606 | mport = (adapter->ioport | SDIO_MPA_ADDR_BASE | | |
1607 | (card->mpa_tx.ports << 4)) + | |
1608 | card->mpa_tx.start_port; | |
1609 | } | |
1610 | ||
5e6e3a92 | 1611 | ret = mwifiex_write_data_to_card(adapter, card->mpa_tx.buf, |
0fc0d43b | 1612 | card->mpa_tx.buf_len, mport); |
5e6e3a92 BZ |
1613 | |
1614 | MP_TX_AGGR_BUF_RESET(card); | |
1615 | } | |
1616 | ||
1617 | tx_curr_single: | |
1618 | if (f_send_cur_buf) { | |
1619 | dev_dbg(adapter->dev, "data: %s: send current buffer %d\n", | |
5dbd326c | 1620 | __func__, port); |
5e6e3a92 BZ |
1621 | ret = mwifiex_write_data_to_card(adapter, payload, pkt_len, |
1622 | adapter->ioport + port); | |
1623 | } | |
1624 | ||
1625 | if (f_postcopy_cur_buf) { | |
1626 | dev_dbg(adapter->dev, "data: %s: postcopy current buffer\n", | |
5dbd326c | 1627 | __func__); |
5e6e3a92 BZ |
1628 | MP_TX_AGGR_BUF_PUT(card, payload, pkt_len, port); |
1629 | } | |
1630 | ||
1631 | return ret; | |
1632 | } | |
1633 | ||
1634 | /* | |
1635 | * This function downloads data from driver to card. | |
1636 | * | |
1637 | * Both commands and data packets are transferred to the card by this | |
1638 | * function. | |
1639 | * | |
1640 | * This function adds the SDIO specific header to the front of the buffer | |
1641 | * before transferring. The header contains the length of the packet and | |
1642 | * the type. The firmware handles the packets based upon this set type. | |
1643 | */ | |
1644 | static int mwifiex_sdio_host_to_card(struct mwifiex_adapter *adapter, | |
d930faee | 1645 | u8 type, struct sk_buff *skb, |
5e6e3a92 BZ |
1646 | struct mwifiex_tx_param *tx_param) |
1647 | { | |
1648 | struct sdio_mmc_card *card = adapter->card; | |
270e58e8 | 1649 | int ret; |
5e6e3a92 BZ |
1650 | u32 buf_block_len; |
1651 | u32 blk_size; | |
0fc0d43b | 1652 | u32 port = CTRL_PORT; |
d930faee AK |
1653 | u8 *payload = (u8 *)skb->data; |
1654 | u32 pkt_len = skb->len; | |
5e6e3a92 BZ |
1655 | |
1656 | /* Allocate buffer and copy payload */ | |
1657 | blk_size = MWIFIEX_SDIO_BLOCK_SIZE; | |
1658 | buf_block_len = (pkt_len + blk_size - 1) / blk_size; | |
83e612f6 TM |
1659 | *(__le16 *)&payload[0] = cpu_to_le16((u16)pkt_len); |
1660 | *(__le16 *)&payload[2] = cpu_to_le16(type); | |
5e6e3a92 BZ |
1661 | |
1662 | /* | |
1663 | * This is SDIO specific header | |
1664 | * u16 length, | |
1665 | * u16 type (MWIFIEX_TYPE_DATA = 0, MWIFIEX_TYPE_CMD = 1, | |
1666 | * MWIFIEX_TYPE_EVENT = 3) | |
1667 | */ | |
1668 | if (type == MWIFIEX_TYPE_DATA) { | |
1669 | ret = mwifiex_get_wr_port_data(adapter, &port); | |
1670 | if (ret) { | |
1671 | dev_err(adapter->dev, "%s: no wr_port available\n", | |
5dbd326c | 1672 | __func__); |
5e6e3a92 BZ |
1673 | return ret; |
1674 | } | |
1675 | } else { | |
1676 | adapter->cmd_sent = true; | |
1677 | /* Type must be MWIFIEX_TYPE_CMD */ | |
1678 | ||
1679 | if (pkt_len <= INTF_HEADER_LEN || | |
1680 | pkt_len > MWIFIEX_UPLD_SIZE) | |
1681 | dev_err(adapter->dev, "%s: payload=%p, nb=%d\n", | |
5dbd326c | 1682 | __func__, payload, pkt_len); |
b60186f8 YAP |
1683 | |
1684 | if (card->supports_sdio_new_mode) | |
1685 | port = CMD_PORT_SLCT; | |
5e6e3a92 BZ |
1686 | } |
1687 | ||
1688 | /* Transfer data to card */ | |
1689 | pkt_len = buf_block_len * blk_size; | |
1690 | ||
1691 | if (tx_param) | |
1692 | ret = mwifiex_host_to_card_mp_aggr(adapter, payload, pkt_len, | |
5dbd326c YAP |
1693 | port, tx_param->next_pkt_len |
1694 | ); | |
5e6e3a92 BZ |
1695 | else |
1696 | ret = mwifiex_host_to_card_mp_aggr(adapter, payload, pkt_len, | |
5dbd326c | 1697 | port, 0); |
5e6e3a92 BZ |
1698 | |
1699 | if (ret) { | |
1700 | if (type == MWIFIEX_TYPE_CMD) | |
1701 | adapter->cmd_sent = false; | |
bb71d01a | 1702 | if (type == MWIFIEX_TYPE_DATA) { |
5e6e3a92 | 1703 | adapter->data_sent = false; |
bb71d01a AP |
1704 | /* restore curr_wr_port in error cases */ |
1705 | card->curr_wr_port = port; | |
1706 | card->mp_wr_bitmap |= (u32)(1 << card->curr_wr_port); | |
1707 | } | |
5e6e3a92 BZ |
1708 | } else { |
1709 | if (type == MWIFIEX_TYPE_DATA) { | |
1710 | if (!(card->mp_wr_bitmap & (1 << card->curr_wr_port))) | |
1711 | adapter->data_sent = true; | |
1712 | else | |
1713 | adapter->data_sent = false; | |
1714 | } | |
1715 | } | |
1716 | ||
1717 | return ret; | |
1718 | } | |
1719 | ||
1720 | /* | |
1721 | * This function allocates the MPA Tx and Rx buffers. | |
1722 | */ | |
1723 | static int mwifiex_alloc_sdio_mpa_buffers(struct mwifiex_adapter *adapter, | |
1724 | u32 mpa_tx_buf_size, u32 mpa_rx_buf_size) | |
1725 | { | |
1726 | struct sdio_mmc_card *card = adapter->card; | |
1727 | int ret = 0; | |
1728 | ||
1729 | card->mpa_tx.buf = kzalloc(mpa_tx_buf_size, GFP_KERNEL); | |
1730 | if (!card->mpa_tx.buf) { | |
5e6e3a92 BZ |
1731 | ret = -1; |
1732 | goto error; | |
1733 | } | |
1734 | ||
1735 | card->mpa_tx.buf_size = mpa_tx_buf_size; | |
1736 | ||
1737 | card->mpa_rx.buf = kzalloc(mpa_rx_buf_size, GFP_KERNEL); | |
1738 | if (!card->mpa_rx.buf) { | |
5e6e3a92 BZ |
1739 | ret = -1; |
1740 | goto error; | |
1741 | } | |
1742 | ||
1743 | card->mpa_rx.buf_size = mpa_rx_buf_size; | |
1744 | ||
1745 | error: | |
1746 | if (ret) { | |
1747 | kfree(card->mpa_tx.buf); | |
1748 | kfree(card->mpa_rx.buf); | |
1749 | } | |
1750 | ||
1751 | return ret; | |
1752 | } | |
1753 | ||
1754 | /* | |
1755 | * This function unregisters the SDIO device. | |
1756 | * | |
1757 | * The SDIO IRQ is released, the function is disabled and driver | |
1758 | * data is set to null. | |
1759 | */ | |
1760 | static void | |
1761 | mwifiex_unregister_dev(struct mwifiex_adapter *adapter) | |
1762 | { | |
1763 | struct sdio_mmc_card *card = adapter->card; | |
1764 | ||
1765 | if (adapter->card) { | |
5e6e3a92 | 1766 | sdio_claim_host(card->func); |
5e6e3a92 BZ |
1767 | sdio_disable_func(card->func); |
1768 | sdio_release_host(card->func); | |
5e6e3a92 BZ |
1769 | } |
1770 | } | |
1771 | ||
1772 | /* | |
1773 | * This function registers the SDIO device. | |
1774 | * | |
1775 | * SDIO IRQ is claimed, block size is set and driver data is initialized. | |
1776 | */ | |
1777 | static int mwifiex_register_dev(struct mwifiex_adapter *adapter) | |
1778 | { | |
232fde06 | 1779 | int ret; |
5e6e3a92 BZ |
1780 | struct sdio_mmc_card *card = adapter->card; |
1781 | struct sdio_func *func = card->func; | |
1782 | ||
1783 | /* save adapter pointer in card */ | |
1784 | card->adapter = adapter; | |
828cf222 | 1785 | adapter->tx_buf_size = card->tx_buf_size; |
5e6e3a92 BZ |
1786 | |
1787 | sdio_claim_host(func); | |
1788 | ||
5e6e3a92 BZ |
1789 | /* Set block size */ |
1790 | ret = sdio_set_block_size(card->func, MWIFIEX_SDIO_BLOCK_SIZE); | |
232fde06 | 1791 | sdio_release_host(func); |
5e6e3a92 BZ |
1792 | if (ret) { |
1793 | pr_err("cannot set SDIO block size\n"); | |
232fde06 | 1794 | return ret; |
5e6e3a92 BZ |
1795 | } |
1796 | ||
5e6e3a92 BZ |
1797 | |
1798 | adapter->dev = &func->dev; | |
e3bea1c8 | 1799 | |
05889f82 | 1800 | strcpy(adapter->fw_name, card->firmware); |
54881c6b AK |
1801 | adapter->mem_type_mapping_tbl = mem_type_mapping_tbl; |
1802 | adapter->num_mem_types = ARRAY_SIZE(mem_type_mapping_tbl); | |
5e6e3a92 BZ |
1803 | |
1804 | return 0; | |
5e6e3a92 BZ |
1805 | } |
1806 | ||
1807 | /* | |
1808 | * This function initializes the SDIO driver. | |
1809 | * | |
1810 | * The following initializations steps are followed - | |
1811 | * - Read the Host interrupt status register to acknowledge | |
1812 | * the first interrupt got from bootloader | |
1813 | * - Disable host interrupt mask register | |
1814 | * - Get SDIO port | |
5e6e3a92 BZ |
1815 | * - Initialize SDIO variables in card |
1816 | * - Allocate MP registers | |
1817 | * - Allocate MPA Tx and Rx buffers | |
1818 | */ | |
1819 | static int mwifiex_init_sdio(struct mwifiex_adapter *adapter) | |
1820 | { | |
1821 | struct sdio_mmc_card *card = adapter->card; | |
05889f82 | 1822 | const struct mwifiex_sdio_card_reg *reg = card->reg; |
5e6e3a92 | 1823 | int ret; |
ab93d4ff | 1824 | u8 sdio_ireg; |
5e6e3a92 | 1825 | |
3c59e328 AK |
1826 | sdio_set_drvdata(card->func, card); |
1827 | ||
5e6e3a92 BZ |
1828 | /* |
1829 | * Read the HOST_INT_STATUS_REG for ACK the first interrupt got | |
1830 | * from the bootloader. If we don't do this we get a interrupt | |
1831 | * as soon as we register the irq. | |
1832 | */ | |
1833 | mwifiex_read_reg(adapter, HOST_INTSTATUS_REG, &sdio_ireg); | |
1834 | ||
5e6e3a92 BZ |
1835 | /* Get SDIO ioport */ |
1836 | mwifiex_init_sdio_ioport(adapter); | |
1837 | ||
5e6e3a92 BZ |
1838 | /* Initialize SDIO variables in card */ |
1839 | card->mp_rd_bitmap = 0; | |
1840 | card->mp_wr_bitmap = 0; | |
05889f82 AK |
1841 | card->curr_rd_port = reg->start_rd_port; |
1842 | card->curr_wr_port = reg->start_wr_port; | |
5e6e3a92 | 1843 | |
05889f82 | 1844 | card->mp_data_port_mask = reg->data_port_mask; |
5e6e3a92 BZ |
1845 | |
1846 | card->mpa_tx.buf_len = 0; | |
1847 | card->mpa_tx.pkt_cnt = 0; | |
1848 | card->mpa_tx.start_port = 0; | |
1849 | ||
7d7ab022 | 1850 | card->mpa_tx.enabled = 1; |
05889f82 | 1851 | card->mpa_tx.pkt_aggr_limit = card->mp_agg_pkt_limit; |
5e6e3a92 BZ |
1852 | |
1853 | card->mpa_rx.buf_len = 0; | |
1854 | card->mpa_rx.pkt_cnt = 0; | |
1855 | card->mpa_rx.start_port = 0; | |
1856 | ||
7d7ab022 | 1857 | card->mpa_rx.enabled = 1; |
05889f82 | 1858 | card->mpa_rx.pkt_aggr_limit = card->mp_agg_pkt_limit; |
5e6e3a92 BZ |
1859 | |
1860 | /* Allocate buffers for SDIO MP-A */ | |
05889f82 | 1861 | card->mp_regs = kzalloc(reg->max_mp_regs, GFP_KERNEL); |
0d2e7a5c | 1862 | if (!card->mp_regs) |
b53575ec | 1863 | return -ENOMEM; |
5e6e3a92 | 1864 | |
c23b7c8f AK |
1865 | /* Allocate skb pointer buffers */ |
1866 | card->mpa_rx.skb_arr = kzalloc((sizeof(void *)) * | |
1867 | card->mp_agg_pkt_limit, GFP_KERNEL); | |
1868 | card->mpa_rx.len_arr = kzalloc(sizeof(*card->mpa_rx.len_arr) * | |
1869 | card->mp_agg_pkt_limit, GFP_KERNEL); | |
5e6e3a92 | 1870 | ret = mwifiex_alloc_sdio_mpa_buffers(adapter, |
e1aa93a4 AK |
1871 | card->mp_tx_agg_buf_size, |
1872 | card->mp_rx_agg_buf_size); | |
5e6e3a92 BZ |
1873 | if (ret) { |
1874 | dev_err(adapter->dev, "failed to alloc sdio mp-a buffers\n"); | |
1875 | kfree(card->mp_regs); | |
1876 | return -1; | |
1877 | } | |
1878 | ||
1879 | return ret; | |
1880 | } | |
1881 | ||
1882 | /* | |
1883 | * This function resets the MPA Tx and Rx buffers. | |
1884 | */ | |
1885 | static void mwifiex_cleanup_mpa_buf(struct mwifiex_adapter *adapter) | |
1886 | { | |
1887 | struct sdio_mmc_card *card = adapter->card; | |
1888 | ||
1889 | MP_TX_AGGR_BUF_RESET(card); | |
1890 | MP_RX_AGGR_BUF_RESET(card); | |
1891 | } | |
1892 | ||
1893 | /* | |
1894 | * This function cleans up the allocated card buffers. | |
1895 | * | |
1896 | * The following are freed by this function - | |
1897 | * - MP registers | |
1898 | * - MPA Tx buffer | |
1899 | * - MPA Rx buffer | |
1900 | */ | |
1901 | static void mwifiex_cleanup_sdio(struct mwifiex_adapter *adapter) | |
1902 | { | |
1903 | struct sdio_mmc_card *card = adapter->card; | |
1904 | ||
1905 | kfree(card->mp_regs); | |
c23b7c8f AK |
1906 | kfree(card->mpa_rx.skb_arr); |
1907 | kfree(card->mpa_rx.len_arr); | |
5e6e3a92 BZ |
1908 | kfree(card->mpa_tx.buf); |
1909 | kfree(card->mpa_rx.buf); | |
3c59e328 AK |
1910 | sdio_set_drvdata(card->func, NULL); |
1911 | kfree(card); | |
5e6e3a92 BZ |
1912 | } |
1913 | ||
1914 | /* | |
1915 | * This function updates the MP end port in card. | |
1916 | */ | |
1917 | static void | |
1918 | mwifiex_update_mp_end_port(struct mwifiex_adapter *adapter, u16 port) | |
1919 | { | |
1920 | struct sdio_mmc_card *card = adapter->card; | |
05889f82 | 1921 | const struct mwifiex_sdio_card_reg *reg = card->reg; |
5e6e3a92 BZ |
1922 | int i; |
1923 | ||
1924 | card->mp_end_port = port; | |
1925 | ||
05889f82 | 1926 | card->mp_data_port_mask = reg->data_port_mask; |
5e6e3a92 | 1927 | |
b60186f8 YAP |
1928 | if (reg->start_wr_port) { |
1929 | for (i = 1; i <= card->max_ports - card->mp_end_port; i++) | |
1930 | card->mp_data_port_mask &= | |
1931 | ~(1 << (card->max_ports - i)); | |
1932 | } | |
5e6e3a92 | 1933 | |
05889f82 | 1934 | card->curr_wr_port = reg->start_wr_port; |
5e6e3a92 BZ |
1935 | |
1936 | dev_dbg(adapter->dev, "cmd: mp_end_port %d, data port mask 0x%x\n", | |
5dbd326c | 1937 | port, card->mp_data_port_mask); |
5e6e3a92 BZ |
1938 | } |
1939 | ||
088df424 | 1940 | static void mwifiex_sdio_card_reset_work(struct mwifiex_adapter *adapter) |
d31ab357 | 1941 | { |
088df424 AK |
1942 | struct sdio_mmc_card *card = adapter->card; |
1943 | struct mmc_host *target = card->func->card->host; | |
7f5855c9 | 1944 | |
d31ab357 AK |
1945 | /* The actual reset operation must be run outside of driver thread. |
1946 | * This is because mmc_remove_host() will cause the device to be | |
1947 | * instantly destroyed, and the driver then needs to end its thread, | |
1948 | * leading to a deadlock. | |
1949 | * | |
1950 | * We run it in a totally independent workqueue. | |
1951 | */ | |
1952 | ||
1953 | pr_err("Resetting card...\n"); | |
7f5855c9 | 1954 | mmc_remove_host(target); |
d31ab357 AK |
1955 | /* 20ms delay is based on experiment with sdhci controller */ |
1956 | mdelay(20); | |
7f5855c9 | 1957 | mmc_add_host(target); |
d31ab357 | 1958 | } |
8915d738 | 1959 | |
54881c6b AK |
1960 | /* This function read/write firmware */ |
1961 | static enum | |
1962 | rdwr_status mwifiex_sdio_rdwr_firmware(struct mwifiex_adapter *adapter, | |
1963 | u8 doneflag) | |
1964 | { | |
1965 | struct sdio_mmc_card *card = adapter->card; | |
1966 | int ret, tries; | |
1967 | u8 ctrl_data = 0; | |
1968 | ||
1969 | sdio_writeb(card->func, FW_DUMP_HOST_READY, card->reg->fw_dump_ctrl, | |
1970 | &ret); | |
1971 | if (ret) { | |
1972 | dev_err(adapter->dev, "SDIO Write ERR\n"); | |
1973 | return RDWR_STATUS_FAILURE; | |
1974 | } | |
1975 | for (tries = 0; tries < MAX_POLL_TRIES; tries++) { | |
1976 | ctrl_data = sdio_readb(card->func, card->reg->fw_dump_ctrl, | |
1977 | &ret); | |
1978 | if (ret) { | |
1979 | dev_err(adapter->dev, "SDIO read err\n"); | |
1980 | return RDWR_STATUS_FAILURE; | |
1981 | } | |
1982 | if (ctrl_data == FW_DUMP_DONE) | |
1983 | break; | |
1984 | if (doneflag && ctrl_data == doneflag) | |
1985 | return RDWR_STATUS_DONE; | |
1986 | if (ctrl_data != FW_DUMP_HOST_READY) { | |
1987 | dev_info(adapter->dev, | |
1988 | "The ctrl reg was changed, re-try again!\n"); | |
1989 | sdio_writeb(card->func, FW_DUMP_HOST_READY, | |
1990 | card->reg->fw_dump_ctrl, &ret); | |
1991 | if (ret) { | |
1992 | dev_err(adapter->dev, "SDIO write err\n"); | |
1993 | return RDWR_STATUS_FAILURE; | |
1994 | } | |
1995 | } | |
1996 | usleep_range(100, 200); | |
1997 | } | |
1998 | if (ctrl_data == FW_DUMP_HOST_READY) { | |
1999 | dev_err(adapter->dev, "Fail to pull ctrl_data\n"); | |
2000 | return RDWR_STATUS_FAILURE; | |
2001 | } | |
2002 | ||
2003 | return RDWR_STATUS_SUCCESS; | |
2004 | } | |
2005 | ||
2006 | /* This function dump firmware memory to file */ | |
2007 | static void mwifiex_sdio_fw_dump_work(struct work_struct *work) | |
2008 | { | |
2009 | struct mwifiex_adapter *adapter = | |
2010 | container_of(work, struct mwifiex_adapter, iface_work); | |
2011 | struct sdio_mmc_card *card = adapter->card; | |
2012 | int ret = 0; | |
2013 | unsigned int reg, reg_start, reg_end; | |
2014 | u8 *dbg_ptr, *end_ptr, dump_num, idx, i, read_reg, doneflag = 0; | |
54881c6b AK |
2015 | enum rdwr_status stat; |
2016 | u32 memory_size; | |
2017 | static char *env[] = { "DRIVER=mwifiex_sdio", "EVENT=fw_dump", NULL }; | |
2018 | ||
2019 | if (!card->supports_fw_dump) | |
2020 | return; | |
2021 | ||
2022 | for (idx = 0; idx < ARRAY_SIZE(mem_type_mapping_tbl); idx++) { | |
2023 | struct memory_type_mapping *entry = &mem_type_mapping_tbl[idx]; | |
2024 | ||
2025 | if (entry->mem_ptr) { | |
2026 | vfree(entry->mem_ptr); | |
2027 | entry->mem_ptr = NULL; | |
2028 | } | |
2029 | entry->mem_size = 0; | |
2030 | } | |
2031 | ||
2032 | mwifiex_pm_wakeup_card(adapter); | |
2033 | sdio_claim_host(card->func); | |
2034 | ||
1d9e954e | 2035 | dev_info(adapter->dev, "== mwifiex firmware dump start ==\n"); |
54881c6b AK |
2036 | |
2037 | stat = mwifiex_sdio_rdwr_firmware(adapter, doneflag); | |
2038 | if (stat == RDWR_STATUS_FAILURE) | |
2039 | goto done; | |
2040 | ||
2041 | reg = card->reg->fw_dump_start; | |
2042 | /* Read the number of the memories which will dump */ | |
2043 | dump_num = sdio_readb(card->func, reg, &ret); | |
2044 | if (ret) { | |
2045 | dev_err(adapter->dev, "SDIO read memory length err\n"); | |
2046 | goto done; | |
2047 | } | |
2048 | ||
2049 | /* Read the length of every memory which will dump */ | |
2050 | for (idx = 0; idx < dump_num; idx++) { | |
2051 | struct memory_type_mapping *entry = &mem_type_mapping_tbl[idx]; | |
2052 | ||
2053 | stat = mwifiex_sdio_rdwr_firmware(adapter, doneflag); | |
2054 | if (stat == RDWR_STATUS_FAILURE) | |
2055 | goto done; | |
2056 | ||
2057 | memory_size = 0; | |
2058 | reg = card->reg->fw_dump_start; | |
2059 | for (i = 0; i < 4; i++) { | |
2060 | read_reg = sdio_readb(card->func, reg, &ret); | |
2061 | if (ret) { | |
2062 | dev_err(adapter->dev, "SDIO read err\n"); | |
2063 | goto done; | |
2064 | } | |
2065 | memory_size |= (read_reg << i*8); | |
2066 | reg++; | |
2067 | } | |
2068 | ||
2069 | if (memory_size == 0) { | |
2070 | dev_info(adapter->dev, "Firmware dump Finished!\n"); | |
2071 | break; | |
2072 | } | |
2073 | ||
2074 | dev_info(adapter->dev, | |
2075 | "%s_SIZE=0x%x\n", entry->mem_name, memory_size); | |
2076 | entry->mem_ptr = vmalloc(memory_size + 1); | |
2077 | entry->mem_size = memory_size; | |
2078 | if (!entry->mem_ptr) { | |
2079 | dev_err(adapter->dev, "Vmalloc %s failed\n", | |
2080 | entry->mem_name); | |
2081 | goto done; | |
2082 | } | |
2083 | dbg_ptr = entry->mem_ptr; | |
2084 | end_ptr = dbg_ptr + memory_size; | |
2085 | ||
2086 | doneflag = entry->done_flag; | |
1d9e954e BZ |
2087 | dev_info(adapter->dev, "Start %s output, please wait...\n", |
2088 | entry->mem_name); | |
54881c6b AK |
2089 | |
2090 | do { | |
2091 | stat = mwifiex_sdio_rdwr_firmware(adapter, doneflag); | |
2092 | if (stat == RDWR_STATUS_FAILURE) | |
2093 | goto done; | |
2094 | ||
2095 | reg_start = card->reg->fw_dump_start; | |
2096 | reg_end = card->reg->fw_dump_end; | |
2097 | for (reg = reg_start; reg <= reg_end; reg++) { | |
2098 | *dbg_ptr = sdio_readb(card->func, reg, &ret); | |
2099 | if (ret) { | |
2100 | dev_err(adapter->dev, | |
2101 | "SDIO read err\n"); | |
2102 | goto done; | |
2103 | } | |
2104 | if (dbg_ptr < end_ptr) | |
2105 | dbg_ptr++; | |
2106 | else | |
2107 | dev_err(adapter->dev, | |
2108 | "Allocated buf not enough\n"); | |
2109 | } | |
2110 | ||
2111 | if (stat != RDWR_STATUS_DONE) | |
2112 | continue; | |
2113 | ||
2114 | dev_info(adapter->dev, "%s done: size=0x%tx\n", | |
2115 | entry->mem_name, dbg_ptr - entry->mem_ptr); | |
2116 | break; | |
2117 | } while (1); | |
2118 | } | |
1d9e954e | 2119 | dev_info(adapter->dev, "== mwifiex firmware dump end ==\n"); |
54881c6b AK |
2120 | |
2121 | kobject_uevent_env(&adapter->wiphy->dev.kobj, KOBJ_CHANGE, env); | |
2122 | ||
2123 | done: | |
2124 | sdio_release_host(card->func); | |
2125 | adapter->curr_mem_idx = 0; | |
2126 | } | |
2127 | ||
8915d738 AK |
2128 | static void mwifiex_sdio_work(struct work_struct *work) |
2129 | { | |
2130 | struct mwifiex_adapter *adapter = | |
2131 | container_of(work, struct mwifiex_adapter, iface_work); | |
2132 | ||
2133 | if (test_and_clear_bit(MWIFIEX_IFACE_WORK_CARD_RESET, | |
2134 | &adapter->iface_work_flags)) | |
088df424 | 2135 | mwifiex_sdio_card_reset_work(adapter); |
54881c6b AK |
2136 | if (test_and_clear_bit(MWIFIEX_IFACE_WORK_FW_DUMP, |
2137 | &adapter->iface_work_flags)) | |
2138 | mwifiex_sdio_fw_dump_work(work); | |
8915d738 | 2139 | } |
d31ab357 AK |
2140 | |
2141 | /* This function resets the card */ | |
2142 | static void mwifiex_sdio_card_reset(struct mwifiex_adapter *adapter) | |
2143 | { | |
8915d738 AK |
2144 | if (test_bit(MWIFIEX_IFACE_WORK_CARD_RESET, &adapter->iface_work_flags)) |
2145 | return; | |
2146 | ||
2147 | set_bit(MWIFIEX_IFACE_WORK_CARD_RESET, &adapter->iface_work_flags); | |
2148 | ||
8915d738 | 2149 | schedule_work(&adapter->iface_work); |
d31ab357 AK |
2150 | } |
2151 | ||
54881c6b AK |
2152 | /* This function dumps FW information */ |
2153 | static void mwifiex_sdio_fw_dump(struct mwifiex_adapter *adapter) | |
2154 | { | |
2155 | if (test_bit(MWIFIEX_IFACE_WORK_FW_DUMP, &adapter->iface_work_flags)) | |
2156 | return; | |
2157 | ||
2158 | set_bit(MWIFIEX_IFACE_WORK_FW_DUMP, &adapter->iface_work_flags); | |
2159 | schedule_work(&adapter->iface_work); | |
2160 | } | |
2161 | ||
5e6e3a92 BZ |
2162 | static struct mwifiex_if_ops sdio_ops = { |
2163 | .init_if = mwifiex_init_sdio, | |
2164 | .cleanup_if = mwifiex_cleanup_sdio, | |
2165 | .check_fw_status = mwifiex_check_fw_status, | |
2166 | .prog_fw = mwifiex_prog_fw_w_helper, | |
2167 | .register_dev = mwifiex_register_dev, | |
2168 | .unregister_dev = mwifiex_unregister_dev, | |
2169 | .enable_int = mwifiex_sdio_enable_host_int, | |
232fde06 | 2170 | .disable_int = mwifiex_sdio_disable_host_int, |
5e6e3a92 BZ |
2171 | .process_int_status = mwifiex_process_int_status, |
2172 | .host_to_card = mwifiex_sdio_host_to_card, | |
2173 | .wakeup = mwifiex_pm_wakeup_card, | |
2174 | .wakeup_complete = mwifiex_pm_wakeup_card_complete, | |
2175 | ||
2176 | /* SDIO specific */ | |
2177 | .update_mp_end_port = mwifiex_update_mp_end_port, | |
2178 | .cleanup_mpa_buf = mwifiex_cleanup_mpa_buf, | |
d930faee AK |
2179 | .cmdrsp_complete = mwifiex_sdio_cmdrsp_complete, |
2180 | .event_complete = mwifiex_sdio_event_complete, | |
d31ab357 | 2181 | .card_reset = mwifiex_sdio_card_reset, |
8915d738 | 2182 | .iface_work = mwifiex_sdio_work, |
54881c6b | 2183 | .fw_dump = mwifiex_sdio_fw_dump, |
5e6e3a92 BZ |
2184 | }; |
2185 | ||
2186 | /* | |
2187 | * This function initializes the SDIO driver. | |
2188 | * | |
2189 | * This initiates the semaphore and registers the device with | |
2190 | * SDIO bus. | |
2191 | */ | |
2192 | static int | |
2193 | mwifiex_sdio_init_module(void) | |
2194 | { | |
5e6e3a92 BZ |
2195 | sema_init(&add_remove_card_sem, 1); |
2196 | ||
287546df AK |
2197 | /* Clear the flag in case user removes the card. */ |
2198 | user_rmmod = 0; | |
2199 | ||
636c4598 | 2200 | return sdio_register_driver(&mwifiex_sdio); |
5e6e3a92 BZ |
2201 | } |
2202 | ||
2203 | /* | |
2204 | * This function cleans up the SDIO driver. | |
2205 | * | |
2206 | * The following major steps are followed for cleanup - | |
2207 | * - Resume the device if its suspended | |
2208 | * - Disconnect the device if connected | |
2209 | * - Shutdown the firmware | |
2210 | * - Unregister the device from SDIO bus. | |
2211 | */ | |
2212 | static void | |
2213 | mwifiex_sdio_cleanup_module(void) | |
2214 | { | |
287546df AK |
2215 | if (!down_interruptible(&add_remove_card_sem)) |
2216 | up(&add_remove_card_sem); | |
5e6e3a92 | 2217 | |
287546df AK |
2218 | /* Set the flag as user is removing this module. */ |
2219 | user_rmmod = 1; | |
5e6e3a92 | 2220 | |
5e6e3a92 BZ |
2221 | sdio_unregister_driver(&mwifiex_sdio); |
2222 | } | |
2223 | ||
2224 | module_init(mwifiex_sdio_init_module); | |
2225 | module_exit(mwifiex_sdio_cleanup_module); | |
2226 | ||
2227 | MODULE_AUTHOR("Marvell International Ltd."); | |
2228 | MODULE_DESCRIPTION("Marvell WiFi-Ex SDIO Driver version " SDIO_VERSION); | |
2229 | MODULE_VERSION(SDIO_VERSION); | |
2230 | MODULE_LICENSE("GPL v2"); | |
98e6b9df | 2231 | MODULE_FIRMWARE(SD8786_DEFAULT_FW_NAME); |
e3bea1c8 BZ |
2232 | MODULE_FIRMWARE(SD8787_DEFAULT_FW_NAME); |
2233 | MODULE_FIRMWARE(SD8797_DEFAULT_FW_NAME); | |
b60186f8 | 2234 | MODULE_FIRMWARE(SD8897_DEFAULT_FW_NAME); |