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