1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * NXP Wireless LAN device driver: SDIO specific handling
4 *
5 * Copyright 2011-2020 NXP
6 */
7
8 #include <linux/firmware.h>
9
10 #include "decl.h"
11 #include "ioctl.h"
12 #include "util.h"
13 #include "fw.h"
14 #include "main.h"
15 #include "wmm.h"
16 #include "11n.h"
17 #include "sdio.h"
18
19
20 #define SDIO_VERSION "1.0"
21
22 static void mwifiex_sdio_work(struct work_struct *work);
23
24 static struct mwifiex_if_ops sdio_ops;
25
26 static const struct mwifiex_sdio_card_reg mwifiex_reg_sd87xx = {
27 .start_rd_port = 1,
28 .start_wr_port = 1,
29 .base_0_reg = 0x0040,
30 .base_1_reg = 0x0041,
31 .poll_reg = 0x30,
32 .host_int_enable = UP_LD_HOST_INT_MASK | DN_LD_HOST_INT_MASK,
33 .host_int_rsr_reg = 0x1,
34 .host_int_mask_reg = 0x02,
35 .host_int_status_reg = 0x03,
36 .status_reg_0 = 0x60,
37 .status_reg_1 = 0x61,
38 .sdio_int_mask = 0x3f,
39 .data_port_mask = 0x0000fffe,
40 .io_port_0_reg = 0x78,
41 .io_port_1_reg = 0x79,
42 .io_port_2_reg = 0x7A,
43 .max_mp_regs = 64,
44 .rd_bitmap_l = 0x04,
45 .rd_bitmap_u = 0x05,
46 .wr_bitmap_l = 0x06,
47 .wr_bitmap_u = 0x07,
48 .rd_len_p0_l = 0x08,
49 .rd_len_p0_u = 0x09,
50 .card_misc_cfg_reg = 0x6c,
51 .func1_dump_reg_start = 0x0,
52 .func1_dump_reg_end = 0x9,
53 .func1_scratch_reg = 0x60,
54 .func1_spec_reg_num = 5,
55 .func1_spec_reg_table = {0x28, 0x30, 0x34, 0x38, 0x3c},
56 };
57
58 static const struct mwifiex_sdio_card_reg mwifiex_reg_sd8897 = {
59 .start_rd_port = 0,
60 .start_wr_port = 0,
61 .base_0_reg = 0x60,
62 .base_1_reg = 0x61,
63 .poll_reg = 0x50,
64 .host_int_enable = UP_LD_HOST_INT_MASK | DN_LD_HOST_INT_MASK |
65 CMD_PORT_UPLD_INT_MASK | CMD_PORT_DNLD_INT_MASK,
66 .host_int_rsr_reg = 0x1,
67 .host_int_status_reg = 0x03,
68 .host_int_mask_reg = 0x02,
69 .status_reg_0 = 0xc0,
70 .status_reg_1 = 0xc1,
71 .sdio_int_mask = 0xff,
72 .data_port_mask = 0xffffffff,
73 .io_port_0_reg = 0xD8,
74 .io_port_1_reg = 0xD9,
75 .io_port_2_reg = 0xDA,
76 .max_mp_regs = 184,
77 .rd_bitmap_l = 0x04,
78 .rd_bitmap_u = 0x05,
79 .rd_bitmap_1l = 0x06,
80 .rd_bitmap_1u = 0x07,
81 .wr_bitmap_l = 0x08,
82 .wr_bitmap_u = 0x09,
83 .wr_bitmap_1l = 0x0a,
84 .wr_bitmap_1u = 0x0b,
85 .rd_len_p0_l = 0x0c,
86 .rd_len_p0_u = 0x0d,
87 .card_misc_cfg_reg = 0xcc,
88 .card_cfg_2_1_reg = 0xcd,
89 .cmd_rd_len_0 = 0xb4,
90 .cmd_rd_len_1 = 0xb5,
91 .cmd_rd_len_2 = 0xb6,
92 .cmd_rd_len_3 = 0xb7,
93 .cmd_cfg_0 = 0xb8,
94 .cmd_cfg_1 = 0xb9,
95 .cmd_cfg_2 = 0xba,
96 .cmd_cfg_3 = 0xbb,
97 .fw_dump_host_ready = 0xee,
98 .fw_dump_ctrl = 0xe2,
99 .fw_dump_start = 0xe3,
100 .fw_dump_end = 0xea,
101 .func1_dump_reg_start = 0x0,
102 .func1_dump_reg_end = 0xb,
103 .func1_scratch_reg = 0xc0,
104 .func1_spec_reg_num = 8,
105 .func1_spec_reg_table = {0x4C, 0x50, 0x54, 0x55, 0x58,
106 0x59, 0x5c, 0x5d},
107 };
108
109 static const struct mwifiex_sdio_card_reg mwifiex_reg_sd8977 = {
110 .start_rd_port = 0,
111 .start_wr_port = 0,
112 .base_0_reg = 0xF8,
113 .base_1_reg = 0xF9,
114 .poll_reg = 0x5C,
115 .host_int_enable = UP_LD_HOST_INT_MASK | DN_LD_HOST_INT_MASK |
116 CMD_PORT_UPLD_INT_MASK | CMD_PORT_DNLD_INT_MASK,
117 .host_int_rsr_reg = 0x4,
118 .host_int_status_reg = 0x0C,
119 .host_int_mask_reg = 0x08,
120 .status_reg_0 = 0xE8,
121 .status_reg_1 = 0xE9,
122 .sdio_int_mask = 0xff,
123 .data_port_mask = 0xffffffff,
124 .io_port_0_reg = 0xE4,
125 .io_port_1_reg = 0xE5,
126 .io_port_2_reg = 0xE6,
127 .max_mp_regs = 196,
128 .rd_bitmap_l = 0x10,
129 .rd_bitmap_u = 0x11,
130 .rd_bitmap_1l = 0x12,
131 .rd_bitmap_1u = 0x13,
132 .wr_bitmap_l = 0x14,
133 .wr_bitmap_u = 0x15,
134 .wr_bitmap_1l = 0x16,
135 .wr_bitmap_1u = 0x17,
136 .rd_len_p0_l = 0x18,
137 .rd_len_p0_u = 0x19,
138 .card_misc_cfg_reg = 0xd8,
139 .card_cfg_2_1_reg = 0xd9,
140 .cmd_rd_len_0 = 0xc0,
141 .cmd_rd_len_1 = 0xc1,
142 .cmd_rd_len_2 = 0xc2,
143 .cmd_rd_len_3 = 0xc3,
144 .cmd_cfg_0 = 0xc4,
145 .cmd_cfg_1 = 0xc5,
146 .cmd_cfg_2 = 0xc6,
147 .cmd_cfg_3 = 0xc7,
148 .fw_dump_host_ready = 0xcc,
149 .fw_dump_ctrl = 0xf0,
150 .fw_dump_start = 0xf1,
151 .fw_dump_end = 0xf8,
152 .func1_dump_reg_start = 0x10,
153 .func1_dump_reg_end = 0x17,
154 .func1_scratch_reg = 0xe8,
155 .func1_spec_reg_num = 13,
156 .func1_spec_reg_table = {0x08, 0x58, 0x5C, 0x5D,
157 0x60, 0x61, 0x62, 0x64,
158 0x65, 0x66, 0x68, 0x69,
159 0x6a},
160 };
161
162 static const struct mwifiex_sdio_card_reg mwifiex_reg_sd8997 = {
163 .start_rd_port = 0,
164 .start_wr_port = 0,
165 .base_0_reg = 0xF8,
166 .base_1_reg = 0xF9,
167 .poll_reg = 0x5C,
168 .host_int_enable = UP_LD_HOST_INT_MASK | DN_LD_HOST_INT_MASK |
169 CMD_PORT_UPLD_INT_MASK | CMD_PORT_DNLD_INT_MASK,
170 .host_int_rsr_reg = 0x4,
171 .host_int_status_reg = 0x0C,
172 .host_int_mask_reg = 0x08,
173 .host_strap_reg = 0xF4,
174 .host_strap_mask = 0x01,
175 .host_strap_value = 0x00,
176 .status_reg_0 = 0xE8,
177 .status_reg_1 = 0xE9,
178 .sdio_int_mask = 0xff,
179 .data_port_mask = 0xffffffff,
180 .io_port_0_reg = 0xE4,
181 .io_port_1_reg = 0xE5,
182 .io_port_2_reg = 0xE6,
183 .max_mp_regs = 196,
184 .rd_bitmap_l = 0x10,
185 .rd_bitmap_u = 0x11,
186 .rd_bitmap_1l = 0x12,
187 .rd_bitmap_1u = 0x13,
188 .wr_bitmap_l = 0x14,
189 .wr_bitmap_u = 0x15,
190 .wr_bitmap_1l = 0x16,
191 .wr_bitmap_1u = 0x17,
192 .rd_len_p0_l = 0x18,
193 .rd_len_p0_u = 0x19,
194 .card_misc_cfg_reg = 0xd8,
195 .card_cfg_2_1_reg = 0xd9,
196 .cmd_rd_len_0 = 0xc0,
197 .cmd_rd_len_1 = 0xc1,
198 .cmd_rd_len_2 = 0xc2,
199 .cmd_rd_len_3 = 0xc3,
200 .cmd_cfg_0 = 0xc4,
201 .cmd_cfg_1 = 0xc5,
202 .cmd_cfg_2 = 0xc6,
203 .cmd_cfg_3 = 0xc7,
204 .fw_dump_host_ready = 0xcc,
205 .fw_dump_ctrl = 0xf0,
206 .fw_dump_start = 0xf1,
207 .fw_dump_end = 0xf8,
208 .func1_dump_reg_start = 0x10,
209 .func1_dump_reg_end = 0x17,
210 .func1_scratch_reg = 0xe8,
211 .func1_spec_reg_num = 13,
212 .func1_spec_reg_table = {0x08, 0x58, 0x5C, 0x5D,
213 0x60, 0x61, 0x62, 0x64,
214 0x65, 0x66, 0x68, 0x69,
215 0x6a},
216 };
217
218 static const struct mwifiex_sdio_card_reg mwifiex_reg_sd8887 = {
219 .start_rd_port = 0,
220 .start_wr_port = 0,
221 .base_0_reg = 0x6C,
222 .base_1_reg = 0x6D,
223 .poll_reg = 0x5C,
224 .host_int_enable = UP_LD_HOST_INT_MASK | DN_LD_HOST_INT_MASK |
225 CMD_PORT_UPLD_INT_MASK | CMD_PORT_DNLD_INT_MASK,
226 .host_int_rsr_reg = 0x4,
227 .host_int_status_reg = 0x0C,
228 .host_int_mask_reg = 0x08,
229 .status_reg_0 = 0x90,
230 .status_reg_1 = 0x91,
231 .sdio_int_mask = 0xff,
232 .data_port_mask = 0xffffffff,
233 .io_port_0_reg = 0xE4,
234 .io_port_1_reg = 0xE5,
235 .io_port_2_reg = 0xE6,
236 .max_mp_regs = 196,
237 .rd_bitmap_l = 0x10,
238 .rd_bitmap_u = 0x11,
239 .rd_bitmap_1l = 0x12,
240 .rd_bitmap_1u = 0x13,
241 .wr_bitmap_l = 0x14,
242 .wr_bitmap_u = 0x15,
243 .wr_bitmap_1l = 0x16,
244 .wr_bitmap_1u = 0x17,
245 .rd_len_p0_l = 0x18,
246 .rd_len_p0_u = 0x19,
247 .card_misc_cfg_reg = 0xd8,
248 .card_cfg_2_1_reg = 0xd9,
249 .cmd_rd_len_0 = 0xc0,
250 .cmd_rd_len_1 = 0xc1,
251 .cmd_rd_len_2 = 0xc2,
252 .cmd_rd_len_3 = 0xc3,
253 .cmd_cfg_0 = 0xc4,
254 .cmd_cfg_1 = 0xc5,
255 .cmd_cfg_2 = 0xc6,
256 .cmd_cfg_3 = 0xc7,
257 .func1_dump_reg_start = 0x10,
258 .func1_dump_reg_end = 0x17,
259 .func1_scratch_reg = 0x90,
260 .func1_spec_reg_num = 13,
261 .func1_spec_reg_table = {0x08, 0x58, 0x5C, 0x5D, 0x60,
262 0x61, 0x62, 0x64, 0x65, 0x66,
263 0x68, 0x69, 0x6a},
264 };
265
266 static const struct mwifiex_sdio_card_reg mwifiex_reg_sd89xx = {
267 .start_rd_port = 0,
268 .start_wr_port = 0,
269 .base_0_reg = 0xF8,
270 .base_1_reg = 0xF9,
271 .poll_reg = 0x5C,
272 .host_int_enable = UP_LD_HOST_INT_MASK | DN_LD_HOST_INT_MASK |
273 CMD_PORT_UPLD_INT_MASK | CMD_PORT_DNLD_INT_MASK,
274 .host_int_rsr_reg = 0x4,
275 .host_int_status_reg = 0x0C,
276 .host_int_mask_reg = 0x08,
277 .host_strap_reg = 0xF4,
278 .host_strap_mask = 0x01,
279 .host_strap_value = 0x00,
280 .status_reg_0 = 0xE8,
281 .status_reg_1 = 0xE9,
282 .sdio_int_mask = 0xff,
283 .data_port_mask = 0xffffffff,
284 .io_port_0_reg = 0xE4,
285 .io_port_1_reg = 0xE5,
286 .io_port_2_reg = 0xE6,
287 .max_mp_regs = 196,
288 .rd_bitmap_l = 0x10,
289 .rd_bitmap_u = 0x11,
290 .rd_bitmap_1l = 0x12,
291 .rd_bitmap_1u = 0x13,
292 .wr_bitmap_l = 0x14,
293 .wr_bitmap_u = 0x15,
294 .wr_bitmap_1l = 0x16,
295 .wr_bitmap_1u = 0x17,
296 .rd_len_p0_l = 0x18,
297 .rd_len_p0_u = 0x19,
298 .card_misc_cfg_reg = 0xd8,
299 .card_cfg_2_1_reg = 0xd9,
300 .cmd_rd_len_0 = 0xc0,
301 .cmd_rd_len_1 = 0xc1,
302 .cmd_rd_len_2 = 0xc2,
303 .cmd_rd_len_3 = 0xc3,
304 .cmd_cfg_0 = 0xc4,
305 .cmd_cfg_1 = 0xc5,
306 .cmd_cfg_2 = 0xc6,
307 .cmd_cfg_3 = 0xc7,
308 .fw_dump_host_ready = 0xcc,
309 .fw_dump_ctrl = 0xf9,
310 .fw_dump_start = 0xf1,
311 .fw_dump_end = 0xf8,
312 .func1_dump_reg_start = 0x10,
313 .func1_dump_reg_end = 0x17,
314 .func1_scratch_reg = 0xE8,
315 .func1_spec_reg_num = 13,
316 .func1_spec_reg_table = {0x08, 0x58, 0x5C, 0x5D, 0x60,
317 0x61, 0x62, 0x64, 0x65, 0x66,
318 0x68, 0x69, 0x6a},
319 };
320
321 static const struct mwifiex_sdio_device mwifiex_sdio_sd8786 = {
322 .firmware = SD8786_DEFAULT_FW_NAME,
323 .reg = &mwifiex_reg_sd87xx,
324 .max_ports = 16,
325 .mp_agg_pkt_limit = 8,
326 .tx_buf_size = MWIFIEX_TX_DATA_BUF_SIZE_2K,
327 .mp_tx_agg_buf_size = MWIFIEX_MP_AGGR_BUF_SIZE_16K,
328 .mp_rx_agg_buf_size = MWIFIEX_MP_AGGR_BUF_SIZE_16K,
329 .supports_sdio_new_mode = false,
330 .has_control_mask = true,
331 .can_dump_fw = false,
332 .can_auto_tdls = false,
333 .can_ext_scan = false,
334 .fw_ready_extra_delay = false,
335 };
336
337 static const struct mwifiex_sdio_device mwifiex_sdio_sd8787 = {
338 .firmware = SD8787_DEFAULT_FW_NAME,
339 .reg = &mwifiex_reg_sd87xx,
340 .max_ports = 16,
341 .mp_agg_pkt_limit = 8,
342 .tx_buf_size = MWIFIEX_TX_DATA_BUF_SIZE_2K,
343 .mp_tx_agg_buf_size = MWIFIEX_MP_AGGR_BUF_SIZE_16K,
344 .mp_rx_agg_buf_size = MWIFIEX_MP_AGGR_BUF_SIZE_16K,
345 .supports_sdio_new_mode = false,
346 .has_control_mask = true,
347 .can_dump_fw = false,
348 .can_auto_tdls = false,
349 .can_ext_scan = true,
350 .fw_ready_extra_delay = false,
351 };
352
353 static const struct mwifiex_sdio_device mwifiex_sdio_sd8797 = {
354 .firmware = SD8797_DEFAULT_FW_NAME,
355 .reg = &mwifiex_reg_sd87xx,
356 .max_ports = 16,
357 .mp_agg_pkt_limit = 8,
358 .tx_buf_size = MWIFIEX_TX_DATA_BUF_SIZE_2K,
359 .mp_tx_agg_buf_size = MWIFIEX_MP_AGGR_BUF_SIZE_16K,
360 .mp_rx_agg_buf_size = MWIFIEX_MP_AGGR_BUF_SIZE_16K,
361 .supports_sdio_new_mode = false,
362 .has_control_mask = true,
363 .can_dump_fw = false,
364 .can_auto_tdls = false,
365 .can_ext_scan = true,
366 .fw_ready_extra_delay = false,
367 };
368
369 static const struct mwifiex_sdio_device mwifiex_sdio_sd8897 = {
370 .firmware = SD8897_DEFAULT_FW_NAME,
371 .reg = &mwifiex_reg_sd8897,
372 .max_ports = 32,
373 .mp_agg_pkt_limit = 16,
374 .tx_buf_size = MWIFIEX_TX_DATA_BUF_SIZE_4K,
375 .mp_tx_agg_buf_size = MWIFIEX_MP_AGGR_BUF_SIZE_MAX,
376 .mp_rx_agg_buf_size = MWIFIEX_MP_AGGR_BUF_SIZE_MAX,
377 .supports_sdio_new_mode = true,
378 .has_control_mask = false,
379 .can_dump_fw = true,
380 .can_auto_tdls = false,
381 .can_ext_scan = true,
382 .fw_ready_extra_delay = false,
383 };
384
385 static const struct mwifiex_sdio_device mwifiex_sdio_sd8977 = {
386 .firmware = SD8977_DEFAULT_FW_NAME,
387 .reg = &mwifiex_reg_sd8977,
388 .max_ports = 32,
389 .mp_agg_pkt_limit = 16,
390 .tx_buf_size = MWIFIEX_TX_DATA_BUF_SIZE_4K,
391 .mp_tx_agg_buf_size = MWIFIEX_MP_AGGR_BUF_SIZE_MAX,
392 .mp_rx_agg_buf_size = MWIFIEX_MP_AGGR_BUF_SIZE_MAX,
393 .supports_sdio_new_mode = true,
394 .has_control_mask = false,
395 .can_dump_fw = true,
396 .fw_dump_enh = true,
397 .can_auto_tdls = false,
398 .can_ext_scan = true,
399 .fw_ready_extra_delay = false,
400 };
401
402 static const struct mwifiex_sdio_device mwifiex_sdio_sd8978 = {
403 .firmware_sdiouart = SD8978_SDIOUART_FW_NAME,
404 .reg = &mwifiex_reg_sd89xx,
405 .max_ports = 32,
406 .mp_agg_pkt_limit = 16,
407 .tx_buf_size = MWIFIEX_TX_DATA_BUF_SIZE_4K,
408 .mp_tx_agg_buf_size = MWIFIEX_MP_AGGR_BUF_SIZE_MAX,
409 .mp_rx_agg_buf_size = MWIFIEX_MP_AGGR_BUF_SIZE_MAX,
410 .supports_sdio_new_mode = true,
411 .has_control_mask = false,
412 .can_dump_fw = true,
413 .fw_dump_enh = true,
414 .can_auto_tdls = false,
415 .can_ext_scan = true,
416 .fw_ready_extra_delay = true,
417 };
418
419 static const struct mwifiex_sdio_device mwifiex_sdio_sd8997 = {
420 .firmware = SD8997_DEFAULT_FW_NAME,
421 .firmware_sdiouart = SD8997_SDIOUART_FW_NAME,
422 .reg = &mwifiex_reg_sd8997,
423 .max_ports = 32,
424 .mp_agg_pkt_limit = 16,
425 .tx_buf_size = MWIFIEX_TX_DATA_BUF_SIZE_4K,
426 .mp_tx_agg_buf_size = MWIFIEX_MP_AGGR_BUF_SIZE_MAX,
427 .mp_rx_agg_buf_size = MWIFIEX_MP_AGGR_BUF_SIZE_MAX,
428 .supports_sdio_new_mode = true,
429 .has_control_mask = false,
430 .can_dump_fw = true,
431 .fw_dump_enh = true,
432 .can_auto_tdls = false,
433 .can_ext_scan = true,
434 .fw_ready_extra_delay = false,
435 };
436
437 static const struct mwifiex_sdio_device mwifiex_sdio_sd8887 = {
438 .firmware = SD8887_DEFAULT_FW_NAME,
439 .reg = &mwifiex_reg_sd8887,
440 .max_ports = 32,
441 .mp_agg_pkt_limit = 16,
442 .tx_buf_size = MWIFIEX_TX_DATA_BUF_SIZE_2K,
443 .mp_tx_agg_buf_size = MWIFIEX_MP_AGGR_BUF_SIZE_32K,
444 .mp_rx_agg_buf_size = MWIFIEX_MP_AGGR_BUF_SIZE_32K,
445 .supports_sdio_new_mode = true,
446 .has_control_mask = false,
447 .can_dump_fw = false,
448 .can_auto_tdls = true,
449 .can_ext_scan = true,
450 .fw_ready_extra_delay = false,
451 };
452
453 static const struct mwifiex_sdio_device mwifiex_sdio_sd8987 = {
454 .firmware = SD8987_DEFAULT_FW_NAME,
455 .reg = &mwifiex_reg_sd89xx,
456 .max_ports = 32,
457 .mp_agg_pkt_limit = 16,
458 .tx_buf_size = MWIFIEX_TX_DATA_BUF_SIZE_2K,
459 .mp_tx_agg_buf_size = MWIFIEX_MP_AGGR_BUF_SIZE_MAX,
460 .mp_rx_agg_buf_size = MWIFIEX_MP_AGGR_BUF_SIZE_MAX,
461 .supports_sdio_new_mode = true,
462 .has_control_mask = false,
463 .can_dump_fw = true,
464 .fw_dump_enh = true,
465 .can_auto_tdls = true,
466 .can_ext_scan = true,
467 .fw_ready_extra_delay = false,
468 };
469
470 static const struct mwifiex_sdio_device mwifiex_sdio_sd8801 = {
471 .firmware = SD8801_DEFAULT_FW_NAME,
472 .reg = &mwifiex_reg_sd87xx,
473 .max_ports = 16,
474 .mp_agg_pkt_limit = 8,
475 .supports_sdio_new_mode = false,
476 .has_control_mask = true,
477 .tx_buf_size = MWIFIEX_TX_DATA_BUF_SIZE_2K,
478 .mp_tx_agg_buf_size = MWIFIEX_MP_AGGR_BUF_SIZE_16K,
479 .mp_rx_agg_buf_size = MWIFIEX_MP_AGGR_BUF_SIZE_16K,
480 .can_dump_fw = false,
481 .can_auto_tdls = false,
482 .can_ext_scan = true,
483 .fw_ready_extra_delay = false,
484 };
485
486 static struct memory_type_mapping generic_mem_type_map[] = {
487 {"DUMP", NULL, 0, 0xDD},
488 };
489
490 static struct memory_type_mapping mem_type_mapping_tbl[] = {
491 {"ITCM", NULL, 0, 0xF0},
492 {"DTCM", NULL, 0, 0xF1},
493 {"SQRAM", NULL, 0, 0xF2},
494 {"APU", NULL, 0, 0xF3},
495 {"CIU", NULL, 0, 0xF4},
496 {"ICU", NULL, 0, 0xF5},
497 {"MAC", NULL, 0, 0xF6},
498 {"EXT7", NULL, 0, 0xF7},
499 {"EXT8", NULL, 0, 0xF8},
500 {"EXT9", NULL, 0, 0xF9},
501 {"EXT10", NULL, 0, 0xFA},
502 {"EXT11", NULL, 0, 0xFB},
503 {"EXT12", NULL, 0, 0xFC},
504 {"EXT13", NULL, 0, 0xFD},
505 {"EXTLAST", NULL, 0, 0xFE},
506 };
507
508 static const struct of_device_id mwifiex_sdio_of_match_table[] __maybe_unused = {
509 { .compatible = "marvell,sd8787" },
510 { .compatible = "marvell,sd8897" },
511 { .compatible = "marvell,sd8978" },
512 { .compatible = "marvell,sd8997" },
513 { .compatible = "nxp,iw416" },
514 { }
515 };
516
517 /* This function parse device tree node using mmc subnode devicetree API.
518 * The device node is saved in card->plt_of_node.
519 * if the device tree node exist and include interrupts attributes, this
520 * function will also request platform specific wakeup interrupt.
521 */
mwifiex_sdio_probe_of(struct device * dev)522 static int mwifiex_sdio_probe_of(struct device *dev)
523 {
524 if (!of_match_node(mwifiex_sdio_of_match_table, dev->of_node)) {
525 dev_err(dev, "required compatible string missing\n");
526 return -EINVAL;
527 }
528
529 return 0;
530 }
531
532 /*
533 * SDIO probe.
534 *
535 * This function probes an mwifiex device and registers it. It allocates
536 * the card structure, enables SDIO function number and initiates the
537 * device registration and initialization procedure by adding a logical
538 * interface.
539 */
540 static int
mwifiex_sdio_probe(struct sdio_func * func,const struct sdio_device_id * id)541 mwifiex_sdio_probe(struct sdio_func *func, const struct sdio_device_id *id)
542 {
543 int ret;
544 struct sdio_mmc_card *card = NULL;
545
546 pr_debug("info: vendor=0x%4.04X device=0x%4.04X class=%d function=%d\n",
547 func->vendor, func->device, func->class, func->num);
548
549 card = devm_kzalloc(&func->dev, sizeof(*card), GFP_KERNEL);
550 if (!card)
551 return -ENOMEM;
552
553 init_completion(&card->fw_done);
554
555 card->func = func;
556
557 func->card->quirks |= MMC_QUIRK_BLKSZ_FOR_BYTE_MODE;
558
559 if (id->driver_data) {
560 struct mwifiex_sdio_device *data = (void *)id->driver_data;
561
562 card->firmware = data->firmware;
563 card->firmware_sdiouart = data->firmware_sdiouart;
564 card->reg = data->reg;
565 card->max_ports = data->max_ports;
566 card->mp_agg_pkt_limit = data->mp_agg_pkt_limit;
567 card->supports_sdio_new_mode = data->supports_sdio_new_mode;
568 card->has_control_mask = data->has_control_mask;
569 card->tx_buf_size = data->tx_buf_size;
570 card->mp_tx_agg_buf_size = data->mp_tx_agg_buf_size;
571 card->mp_rx_agg_buf_size = data->mp_rx_agg_buf_size;
572 card->can_dump_fw = data->can_dump_fw;
573 card->fw_dump_enh = data->fw_dump_enh;
574 card->can_auto_tdls = data->can_auto_tdls;
575 card->can_ext_scan = data->can_ext_scan;
576 card->fw_ready_extra_delay = data->fw_ready_extra_delay;
577 INIT_WORK(&card->work, mwifiex_sdio_work);
578 }
579
580 sdio_claim_host(func);
581 ret = sdio_enable_func(func);
582 sdio_release_host(func);
583
584 if (ret) {
585 dev_err(&func->dev, "failed to enable function\n");
586 return ret;
587 }
588
589 /* device tree node parsing and platform specific configuration*/
590 if (func->dev.of_node) {
591 ret = mwifiex_sdio_probe_of(&func->dev);
592 if (ret)
593 goto err_disable;
594 }
595
596 ret = mwifiex_add_card(card, &card->fw_done, &sdio_ops,
597 MWIFIEX_SDIO, &func->dev);
598 if (ret) {
599 dev_err(&func->dev, "add card failed\n");
600 goto err_disable;
601 }
602
603 return 0;
604
605 err_disable:
606 sdio_claim_host(func);
607 sdio_disable_func(func);
608 sdio_release_host(func);
609
610 return ret;
611 }
612
613 /*
614 * SDIO resume.
615 *
616 * Kernel needs to suspend all functions separately. Therefore all
617 * registered functions must have drivers with suspend and resume
618 * methods. Failing that the kernel simply removes the whole card.
619 *
620 * If already not resumed, this function turns on the traffic and
621 * sends a host sleep cancel request to the firmware.
622 */
mwifiex_sdio_resume(struct device * dev)623 static int mwifiex_sdio_resume(struct device *dev)
624 {
625 struct sdio_func *func = dev_to_sdio_func(dev);
626 struct sdio_mmc_card *card;
627 struct mwifiex_adapter *adapter;
628
629 card = sdio_get_drvdata(func);
630 if (!card || !card->adapter) {
631 dev_err(dev, "resume: invalid card or adapter\n");
632 return 0;
633 }
634
635 adapter = card->adapter;
636
637 if (!test_bit(MWIFIEX_IS_SUSPENDED, &adapter->work_flags)) {
638 mwifiex_dbg(adapter, WARN,
639 "device already resumed\n");
640 return 0;
641 }
642
643 clear_bit(MWIFIEX_IS_SUSPENDED, &adapter->work_flags);
644
645 /* Disable Host Sleep */
646 mwifiex_cancel_hs(mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA),
647 MWIFIEX_SYNC_CMD);
648
649 mwifiex_disable_wake(adapter);
650
651 return 0;
652 }
653
654 /* Write data into SDIO card register. Caller claims SDIO device. */
655 static int
mwifiex_write_reg_locked(struct sdio_func * func,u32 reg,u8 data)656 mwifiex_write_reg_locked(struct sdio_func *func, u32 reg, u8 data)
657 {
658 int ret = -1;
659
660 sdio_writeb(func, data, reg, &ret);
661 return ret;
662 }
663
664 /* This function writes data into SDIO card register.
665 */
666 static int
mwifiex_write_reg(struct mwifiex_adapter * adapter,u32 reg,u8 data)667 mwifiex_write_reg(struct mwifiex_adapter *adapter, u32 reg, u8 data)
668 {
669 struct sdio_mmc_card *card = adapter->card;
670 int ret;
671
672 sdio_claim_host(card->func);
673 ret = mwifiex_write_reg_locked(card->func, reg, data);
674 sdio_release_host(card->func);
675
676 return ret;
677 }
678
679 /* This function reads data from SDIO card register.
680 */
681 static int
mwifiex_read_reg(struct mwifiex_adapter * adapter,u32 reg,u8 * data)682 mwifiex_read_reg(struct mwifiex_adapter *adapter, u32 reg, u8 *data)
683 {
684 struct sdio_mmc_card *card = adapter->card;
685 int ret = -1;
686 u8 val;
687
688 sdio_claim_host(card->func);
689 val = sdio_readb(card->func, reg, &ret);
690 sdio_release_host(card->func);
691
692 *data = val;
693
694 return ret;
695 }
696
697 /* This function writes multiple data into SDIO card memory.
698 *
699 * This does not work in suspended mode.
700 */
701 static int
mwifiex_write_data_sync(struct mwifiex_adapter * adapter,u8 * buffer,u32 pkt_len,u32 port)702 mwifiex_write_data_sync(struct mwifiex_adapter *adapter,
703 u8 *buffer, u32 pkt_len, u32 port)
704 {
705 struct sdio_mmc_card *card = adapter->card;
706 int ret;
707 u8 blk_mode =
708 (port & MWIFIEX_SDIO_BYTE_MODE_MASK) ? BYTE_MODE : BLOCK_MODE;
709 u32 blk_size = (blk_mode == BLOCK_MODE) ? MWIFIEX_SDIO_BLOCK_SIZE : 1;
710 u32 blk_cnt =
711 (blk_mode ==
712 BLOCK_MODE) ? (pkt_len /
713 MWIFIEX_SDIO_BLOCK_SIZE) : pkt_len;
714 u32 ioport = (port & MWIFIEX_SDIO_IO_PORT_MASK);
715
716 if (test_bit(MWIFIEX_IS_SUSPENDED, &adapter->work_flags)) {
717 mwifiex_dbg(adapter, ERROR,
718 "%s: not allowed while suspended\n", __func__);
719 return -1;
720 }
721
722 sdio_claim_host(card->func);
723
724 ret = sdio_writesb(card->func, ioport, buffer, blk_cnt * blk_size);
725
726 sdio_release_host(card->func);
727
728 return ret;
729 }
730
731 /* This function reads multiple data from SDIO card memory.
732 */
mwifiex_read_data_sync(struct mwifiex_adapter * adapter,u8 * buffer,u32 len,u32 port,u8 claim)733 static int mwifiex_read_data_sync(struct mwifiex_adapter *adapter, u8 *buffer,
734 u32 len, u32 port, u8 claim)
735 {
736 struct sdio_mmc_card *card = adapter->card;
737 int ret;
738 u8 blk_mode = (port & MWIFIEX_SDIO_BYTE_MODE_MASK) ? BYTE_MODE
739 : BLOCK_MODE;
740 u32 blk_size = (blk_mode == BLOCK_MODE) ? MWIFIEX_SDIO_BLOCK_SIZE : 1;
741 u32 blk_cnt = (blk_mode == BLOCK_MODE) ? (len / MWIFIEX_SDIO_BLOCK_SIZE)
742 : len;
743 u32 ioport = (port & MWIFIEX_SDIO_IO_PORT_MASK);
744
745 if (claim)
746 sdio_claim_host(card->func);
747
748 ret = sdio_readsb(card->func, buffer, ioport, blk_cnt * blk_size);
749
750 if (claim)
751 sdio_release_host(card->func);
752
753 return ret;
754 }
755
756 /* This function reads the firmware status.
757 */
758 static int
mwifiex_sdio_read_fw_status(struct mwifiex_adapter * adapter,u16 * dat)759 mwifiex_sdio_read_fw_status(struct mwifiex_adapter *adapter, u16 *dat)
760 {
761 struct sdio_mmc_card *card = adapter->card;
762 const struct mwifiex_sdio_card_reg *reg = card->reg;
763 u8 fws0, fws1;
764
765 if (mwifiex_read_reg(adapter, reg->status_reg_0, &fws0))
766 return -1;
767
768 if (mwifiex_read_reg(adapter, reg->status_reg_1, &fws1))
769 return -1;
770
771 *dat = (u16)((fws1 << 8) | fws0);
772 return 0;
773 }
774
775 /* This function checks the firmware status in card.
776 */
mwifiex_check_fw_status(struct mwifiex_adapter * adapter,u32 poll_num)777 static int mwifiex_check_fw_status(struct mwifiex_adapter *adapter,
778 u32 poll_num)
779 {
780 struct sdio_mmc_card *card = adapter->card;
781 int ret = 0;
782 u16 firmware_stat = 0;
783 u32 tries;
784
785 for (tries = 0; tries < poll_num; tries++) {
786 ret = mwifiex_sdio_read_fw_status(adapter, &firmware_stat);
787 if (ret)
788 continue;
789 if (firmware_stat == FIRMWARE_READY_SDIO) {
790 ret = 0;
791 break;
792 }
793
794 msleep(100);
795 ret = -1;
796 }
797
798 if (card->fw_ready_extra_delay &&
799 firmware_stat == FIRMWARE_READY_SDIO)
800 /* firmware might pretend to be ready, when it's not.
801 * Wait a little bit more as a workaround.
802 */
803 msleep(100);
804
805 return ret;
806 }
807
808 /* This function checks if WLAN is the winner.
809 */
mwifiex_check_winner_status(struct mwifiex_adapter * adapter)810 static int mwifiex_check_winner_status(struct mwifiex_adapter *adapter)
811 {
812 int ret = 0;
813 u8 winner = 0;
814 struct sdio_mmc_card *card = adapter->card;
815
816 if (mwifiex_read_reg(adapter, card->reg->status_reg_0, &winner))
817 return -1;
818
819 if (winner)
820 adapter->winner = 0;
821 else
822 adapter->winner = 1;
823
824 return ret;
825 }
826
827 /*
828 * SDIO remove.
829 *
830 * This function removes the interface and frees up the card structure.
831 */
832 static void
mwifiex_sdio_remove(struct sdio_func * func)833 mwifiex_sdio_remove(struct sdio_func *func)
834 {
835 struct sdio_mmc_card *card;
836 struct mwifiex_adapter *adapter;
837 struct mwifiex_private *priv;
838 int ret = 0;
839 u16 firmware_stat;
840
841 card = sdio_get_drvdata(func);
842 if (!card)
843 return;
844
845 wait_for_completion(&card->fw_done);
846
847 adapter = card->adapter;
848 if (!adapter || !adapter->priv_num)
849 return;
850
851 mwifiex_dbg(adapter, INFO, "info: SDIO func num=%d\n", func->num);
852
853 ret = mwifiex_sdio_read_fw_status(adapter, &firmware_stat);
854 if (!ret && firmware_stat == FIRMWARE_READY_SDIO &&
855 !adapter->mfg_mode) {
856 mwifiex_deauthenticate_all(adapter);
857
858 priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
859 mwifiex_disable_auto_ds(priv);
860 mwifiex_init_shutdown_fw(priv, MWIFIEX_FUNC_SHUTDOWN);
861 }
862
863 mwifiex_remove_card(adapter);
864 }
865
866 /*
867 * SDIO suspend.
868 *
869 * Kernel needs to suspend all functions separately. Therefore all
870 * registered functions must have drivers with suspend and resume
871 * methods. Failing that the kernel simply removes the whole card.
872 *
873 * If already not suspended, this function allocates and sends a host
874 * sleep activate request to the firmware and turns off the traffic.
875 */
mwifiex_sdio_suspend(struct device * dev)876 static int mwifiex_sdio_suspend(struct device *dev)
877 {
878 struct sdio_func *func = dev_to_sdio_func(dev);
879 struct sdio_mmc_card *card;
880 struct mwifiex_adapter *adapter;
881 mmc_pm_flag_t pm_flag = 0;
882 int ret = 0;
883
884 pm_flag = sdio_get_host_pm_caps(func);
885 pr_debug("cmd: %s: suspend: PM flag = 0x%x\n",
886 sdio_func_id(func), pm_flag);
887 if (!(pm_flag & MMC_PM_KEEP_POWER)) {
888 dev_err(dev, "%s: cannot remain alive while host is"
889 " suspended\n", sdio_func_id(func));
890 return -ENOSYS;
891 }
892
893 card = sdio_get_drvdata(func);
894 if (!card) {
895 dev_err(dev, "suspend: invalid card\n");
896 return 0;
897 }
898
899 /* Might still be loading firmware */
900 wait_for_completion(&card->fw_done);
901
902 adapter = card->adapter;
903 if (!adapter) {
904 dev_err(dev, "adapter is not valid\n");
905 return 0;
906 }
907
908 if (!adapter->is_up)
909 return -EBUSY;
910
911 mwifiex_enable_wake(adapter);
912
913 /* Enable the Host Sleep */
914 if (!mwifiex_enable_hs(adapter)) {
915 mwifiex_dbg(adapter, ERROR,
916 "cmd: failed to suspend\n");
917 clear_bit(MWIFIEX_IS_HS_ENABLING, &adapter->work_flags);
918 mwifiex_disable_wake(adapter);
919 return -EFAULT;
920 }
921
922 mwifiex_dbg(adapter, INFO,
923 "cmd: suspend with MMC_PM_KEEP_POWER\n");
924 ret = sdio_set_host_pm_flags(func, MMC_PM_KEEP_POWER);
925
926 /* Indicate device suspended */
927 set_bit(MWIFIEX_IS_SUSPENDED, &adapter->work_flags);
928 clear_bit(MWIFIEX_IS_HS_ENABLING, &adapter->work_flags);
929
930 return ret;
931 }
932
mwifiex_sdio_coredump(struct device * dev)933 static void mwifiex_sdio_coredump(struct device *dev)
934 {
935 struct sdio_func *func = dev_to_sdio_func(dev);
936 struct sdio_mmc_card *card;
937
938 card = sdio_get_drvdata(func);
939 if (!test_and_set_bit(MWIFIEX_IFACE_WORK_DEVICE_DUMP,
940 &card->work_flags))
941 schedule_work(&card->work);
942 }
943
944 /* WLAN IDs */
945 static const struct sdio_device_id mwifiex_ids[] = {
946 {SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8786_WLAN),
947 .driver_data = (unsigned long) &mwifiex_sdio_sd8786},
948 {SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8787_WLAN),
949 .driver_data = (unsigned long) &mwifiex_sdio_sd8787},
950 {SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8797_WLAN),
951 .driver_data = (unsigned long) &mwifiex_sdio_sd8797},
952 {SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8897_WLAN),
953 .driver_data = (unsigned long) &mwifiex_sdio_sd8897},
954 {SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8887_WLAN),
955 .driver_data = (unsigned long)&mwifiex_sdio_sd8887},
956 {SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8801_WLAN),
957 .driver_data = (unsigned long)&mwifiex_sdio_sd8801},
958 {SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8977_WLAN),
959 .driver_data = (unsigned long)&mwifiex_sdio_sd8977},
960 {SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8978_WLAN),
961 .driver_data = (unsigned long)&mwifiex_sdio_sd8978},
962 {SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8987_WLAN),
963 .driver_data = (unsigned long)&mwifiex_sdio_sd8987},
964 {SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8997_WLAN),
965 .driver_data = (unsigned long)&mwifiex_sdio_sd8997},
966 {},
967 };
968
969 MODULE_DEVICE_TABLE(sdio, mwifiex_ids);
970
971 static const struct dev_pm_ops mwifiex_sdio_pm_ops = {
972 .suspend = mwifiex_sdio_suspend,
973 .resume = mwifiex_sdio_resume,
974 };
975
976 static struct sdio_driver mwifiex_sdio = {
977 .name = "mwifiex_sdio",
978 .id_table = mwifiex_ids,
979 .probe = mwifiex_sdio_probe,
980 .remove = mwifiex_sdio_remove,
981 .drv = {
982 .owner = THIS_MODULE,
983 .coredump = mwifiex_sdio_coredump,
984 .pm = &mwifiex_sdio_pm_ops,
985 }
986 };
987
988 /*
989 * This function wakes up the card.
990 *
991 * A host power up command is written to the card configuration
992 * register to wake up the card.
993 */
mwifiex_pm_wakeup_card(struct mwifiex_adapter * adapter)994 static int mwifiex_pm_wakeup_card(struct mwifiex_adapter *adapter)
995 {
996 mwifiex_dbg(adapter, EVENT,
997 "event: wakeup device...\n");
998
999 return mwifiex_write_reg(adapter, CONFIGURATION_REG, HOST_POWER_UP);
1000 }
1001
1002 /*
1003 * This function is called after the card has woken up.
1004 *
1005 * The card configuration register is reset.
1006 */
mwifiex_pm_wakeup_card_complete(struct mwifiex_adapter * adapter)1007 static int mwifiex_pm_wakeup_card_complete(struct mwifiex_adapter *adapter)
1008 {
1009 mwifiex_dbg(adapter, EVENT,
1010 "cmd: wakeup device completed\n");
1011
1012 return mwifiex_write_reg(adapter, CONFIGURATION_REG, 0);
1013 }
1014
mwifiex_sdio_dnld_fw(struct mwifiex_adapter * adapter,struct mwifiex_fw_image * fw)1015 static int mwifiex_sdio_dnld_fw(struct mwifiex_adapter *adapter,
1016 struct mwifiex_fw_image *fw)
1017 {
1018 struct sdio_mmc_card *card = adapter->card;
1019 int ret;
1020
1021 sdio_claim_host(card->func);
1022 ret = mwifiex_dnld_fw(adapter, fw);
1023 sdio_release_host(card->func);
1024
1025 return ret;
1026 }
1027
1028 /*
1029 * This function is used to initialize IO ports for the
1030 * chipsets supporting SDIO new mode eg SD8897.
1031 */
mwifiex_init_sdio_new_mode(struct mwifiex_adapter * adapter)1032 static int mwifiex_init_sdio_new_mode(struct mwifiex_adapter *adapter)
1033 {
1034 u8 reg;
1035 struct sdio_mmc_card *card = adapter->card;
1036
1037 adapter->ioport = MEM_PORT;
1038
1039 /* enable sdio new mode */
1040 if (mwifiex_read_reg(adapter, card->reg->card_cfg_2_1_reg, ®))
1041 return -1;
1042 if (mwifiex_write_reg(adapter, card->reg->card_cfg_2_1_reg,
1043 reg | CMD53_NEW_MODE))
1044 return -1;
1045
1046 /* Configure cmd port and enable reading rx length from the register */
1047 if (mwifiex_read_reg(adapter, card->reg->cmd_cfg_0, ®))
1048 return -1;
1049 if (mwifiex_write_reg(adapter, card->reg->cmd_cfg_0,
1050 reg | CMD_PORT_RD_LEN_EN))
1051 return -1;
1052
1053 /* Enable Dnld/Upld ready auto reset for cmd port after cmd53 is
1054 * completed
1055 */
1056 if (mwifiex_read_reg(adapter, card->reg->cmd_cfg_1, ®))
1057 return -1;
1058 if (mwifiex_write_reg(adapter, card->reg->cmd_cfg_1,
1059 reg | CMD_PORT_AUTO_EN))
1060 return -1;
1061
1062 return 0;
1063 }
1064
1065 /* This function initializes the IO ports.
1066 *
1067 * The following operations are performed -
1068 * - Read the IO ports (0, 1 and 2)
1069 * - Set host interrupt Reset-To-Read to clear
1070 * - Set auto re-enable interrupt
1071 */
mwifiex_init_sdio_ioport(struct mwifiex_adapter * adapter)1072 static int mwifiex_init_sdio_ioport(struct mwifiex_adapter *adapter)
1073 {
1074 u8 reg;
1075 struct sdio_mmc_card *card = adapter->card;
1076
1077 adapter->ioport = 0;
1078
1079 if (card->supports_sdio_new_mode) {
1080 if (mwifiex_init_sdio_new_mode(adapter))
1081 return -1;
1082 goto cont;
1083 }
1084
1085 /* Read the IO port */
1086 if (!mwifiex_read_reg(adapter, card->reg->io_port_0_reg, ®))
1087 adapter->ioport |= (reg & 0xff);
1088 else
1089 return -1;
1090
1091 if (!mwifiex_read_reg(adapter, card->reg->io_port_1_reg, ®))
1092 adapter->ioport |= ((reg & 0xff) << 8);
1093 else
1094 return -1;
1095
1096 if (!mwifiex_read_reg(adapter, card->reg->io_port_2_reg, ®))
1097 adapter->ioport |= ((reg & 0xff) << 16);
1098 else
1099 return -1;
1100 cont:
1101 mwifiex_dbg(adapter, INFO,
1102 "info: SDIO FUNC1 IO port: %#x\n", adapter->ioport);
1103
1104 /* Set Host interrupt reset to read to clear */
1105 if (mwifiex_read_reg(adapter, card->reg->host_int_rsr_reg, ®))
1106 return -1;
1107 if (mwifiex_write_reg(adapter, card->reg->host_int_rsr_reg,
1108 reg | card->reg->sdio_int_mask))
1109 return -1;
1110
1111 /* Dnld/Upld ready set to auto reset */
1112 if (mwifiex_read_reg(adapter, card->reg->card_misc_cfg_reg, ®))
1113 return -1;
1114 if (mwifiex_write_reg(adapter, card->reg->card_misc_cfg_reg,
1115 reg | AUTO_RE_ENABLE_INT))
1116 return -1;
1117
1118 return 0;
1119 }
1120
1121 /*
1122 * This function sends data to the card.
1123 */
mwifiex_write_data_to_card(struct mwifiex_adapter * adapter,u8 * payload,u32 pkt_len,u32 port)1124 static int mwifiex_write_data_to_card(struct mwifiex_adapter *adapter,
1125 u8 *payload, u32 pkt_len, u32 port)
1126 {
1127 u32 i = 0;
1128 int ret;
1129
1130 do {
1131 ret = mwifiex_write_data_sync(adapter, payload, pkt_len, port);
1132 if (ret) {
1133 i++;
1134 mwifiex_dbg(adapter, ERROR,
1135 "host_to_card, write iomem\t"
1136 "(%d) failed: %d\n", i, ret);
1137 if (mwifiex_write_reg(adapter, CONFIGURATION_REG, 0x04))
1138 mwifiex_dbg(adapter, ERROR,
1139 "write CFG reg failed\n");
1140
1141 ret = -1;
1142 if (i > MAX_WRITE_IOMEM_RETRY)
1143 return ret;
1144 }
1145 } while (ret == -1);
1146
1147 return ret;
1148 }
1149
1150 /*
1151 * This function gets the read port.
1152 *
1153 * If control port bit is set in MP read bitmap, the control port
1154 * is returned, otherwise the current read port is returned and
1155 * the value is increased (provided it does not reach the maximum
1156 * limit, in which case it is reset to 1)
1157 */
mwifiex_get_rd_port(struct mwifiex_adapter * adapter,u8 * port)1158 static int mwifiex_get_rd_port(struct mwifiex_adapter *adapter, u8 *port)
1159 {
1160 struct sdio_mmc_card *card = adapter->card;
1161 const struct mwifiex_sdio_card_reg *reg = card->reg;
1162 u32 rd_bitmap = card->mp_rd_bitmap;
1163
1164 mwifiex_dbg(adapter, DATA,
1165 "data: mp_rd_bitmap=0x%08x\n", rd_bitmap);
1166
1167 if (card->supports_sdio_new_mode) {
1168 if (!(rd_bitmap & reg->data_port_mask))
1169 return -1;
1170 } else {
1171 if (!(rd_bitmap & (CTRL_PORT_MASK | reg->data_port_mask)))
1172 return -1;
1173 }
1174
1175 if ((card->has_control_mask) &&
1176 (card->mp_rd_bitmap & CTRL_PORT_MASK)) {
1177 card->mp_rd_bitmap &= (u32) (~CTRL_PORT_MASK);
1178 *port = CTRL_PORT;
1179 mwifiex_dbg(adapter, DATA,
1180 "data: port=%d mp_rd_bitmap=0x%08x\n",
1181 *port, card->mp_rd_bitmap);
1182 return 0;
1183 }
1184
1185 if (!(card->mp_rd_bitmap & (1 << card->curr_rd_port)))
1186 return -1;
1187
1188 /* We are now handling the SDIO data ports */
1189 card->mp_rd_bitmap &= (u32)(~(1 << card->curr_rd_port));
1190 *port = card->curr_rd_port;
1191
1192 if (++card->curr_rd_port == card->max_ports)
1193 card->curr_rd_port = reg->start_rd_port;
1194
1195 mwifiex_dbg(adapter, DATA,
1196 "data: port=%d mp_rd_bitmap=0x%08x -> 0x%08x\n",
1197 *port, rd_bitmap, card->mp_rd_bitmap);
1198
1199 return 0;
1200 }
1201
1202 /*
1203 * This function gets the write port for data.
1204 *
1205 * The current write port is returned if available and the value is
1206 * increased (provided it does not reach the maximum limit, in which
1207 * case it is reset to 1)
1208 */
mwifiex_get_wr_port_data(struct mwifiex_adapter * adapter,u32 * port)1209 static int mwifiex_get_wr_port_data(struct mwifiex_adapter *adapter, u32 *port)
1210 {
1211 struct sdio_mmc_card *card = adapter->card;
1212 const struct mwifiex_sdio_card_reg *reg = card->reg;
1213 u32 wr_bitmap = card->mp_wr_bitmap;
1214
1215 mwifiex_dbg(adapter, DATA,
1216 "data: mp_wr_bitmap=0x%08x\n", wr_bitmap);
1217
1218 if (!(wr_bitmap & card->mp_data_port_mask)) {
1219 adapter->data_sent = true;
1220 return -EBUSY;
1221 }
1222
1223 if (card->mp_wr_bitmap & (1 << card->curr_wr_port)) {
1224 card->mp_wr_bitmap &= (u32) (~(1 << card->curr_wr_port));
1225 *port = card->curr_wr_port;
1226 if (++card->curr_wr_port == card->mp_end_port)
1227 card->curr_wr_port = reg->start_wr_port;
1228 } else {
1229 adapter->data_sent = true;
1230 return -EBUSY;
1231 }
1232
1233 if ((card->has_control_mask) && (*port == CTRL_PORT)) {
1234 mwifiex_dbg(adapter, ERROR,
1235 "invalid data port=%d cur port=%d mp_wr_bitmap=0x%08x -> 0x%08x\n",
1236 *port, card->curr_wr_port, wr_bitmap,
1237 card->mp_wr_bitmap);
1238 return -1;
1239 }
1240
1241 mwifiex_dbg(adapter, DATA,
1242 "data: port=%d mp_wr_bitmap=0x%08x -> 0x%08x\n",
1243 *port, wr_bitmap, card->mp_wr_bitmap);
1244
1245 return 0;
1246 }
1247
1248 /*
1249 * This function polls the card status.
1250 */
1251 static int
mwifiex_sdio_poll_card_status(struct mwifiex_adapter * adapter,u8 bits)1252 mwifiex_sdio_poll_card_status(struct mwifiex_adapter *adapter, u8 bits)
1253 {
1254 struct sdio_mmc_card *card = adapter->card;
1255 u32 tries;
1256 u8 cs;
1257
1258 for (tries = 0; tries < MAX_POLL_TRIES; tries++) {
1259 if (mwifiex_read_reg(adapter, card->reg->poll_reg, &cs))
1260 break;
1261 else if ((cs & bits) == bits)
1262 return 0;
1263
1264 usleep_range(10, 20);
1265 }
1266
1267 mwifiex_dbg(adapter, ERROR,
1268 "poll card status failed, tries = %d\n", tries);
1269
1270 return -1;
1271 }
1272
1273 /*
1274 * This function disables the host interrupt.
1275 *
1276 * The host interrupt mask is read, the disable bit is reset and
1277 * written back to the card host interrupt mask register.
1278 */
mwifiex_sdio_disable_host_int(struct mwifiex_adapter * adapter)1279 static void mwifiex_sdio_disable_host_int(struct mwifiex_adapter *adapter)
1280 {
1281 struct sdio_mmc_card *card = adapter->card;
1282 struct sdio_func *func = card->func;
1283
1284 sdio_claim_host(func);
1285 mwifiex_write_reg_locked(func, card->reg->host_int_mask_reg, 0);
1286 sdio_release_irq(func);
1287 sdio_release_host(func);
1288 }
1289
1290 /*
1291 * This function reads the interrupt status from card.
1292 */
mwifiex_interrupt_status(struct mwifiex_adapter * adapter)1293 static void mwifiex_interrupt_status(struct mwifiex_adapter *adapter)
1294 {
1295 struct sdio_mmc_card *card = adapter->card;
1296 u8 sdio_ireg;
1297 unsigned long flags;
1298
1299 if (mwifiex_read_data_sync(adapter, card->mp_regs,
1300 card->reg->max_mp_regs,
1301 REG_PORT | MWIFIEX_SDIO_BYTE_MODE_MASK, 0)) {
1302 mwifiex_dbg(adapter, ERROR, "read mp_regs failed\n");
1303 return;
1304 }
1305
1306 sdio_ireg = card->mp_regs[card->reg->host_int_status_reg];
1307 if (sdio_ireg) {
1308 /*
1309 * DN_LD_HOST_INT_STATUS and/or UP_LD_HOST_INT_STATUS
1310 * For SDIO new mode CMD port interrupts
1311 * DN_LD_CMD_PORT_HOST_INT_STATUS and/or
1312 * UP_LD_CMD_PORT_HOST_INT_STATUS
1313 * Clear the interrupt status register
1314 */
1315 mwifiex_dbg(adapter, INTR,
1316 "int: sdio_ireg = %#x\n", sdio_ireg);
1317 spin_lock_irqsave(&adapter->int_lock, flags);
1318 adapter->int_status |= sdio_ireg;
1319 spin_unlock_irqrestore(&adapter->int_lock, flags);
1320 }
1321 }
1322
1323 /*
1324 * SDIO interrupt handler.
1325 *
1326 * This function reads the interrupt status from firmware and handles
1327 * the interrupt in current thread (ksdioirqd) right away.
1328 */
1329 static void
mwifiex_sdio_interrupt(struct sdio_func * func)1330 mwifiex_sdio_interrupt(struct sdio_func *func)
1331 {
1332 struct mwifiex_adapter *adapter;
1333 struct sdio_mmc_card *card;
1334
1335 card = sdio_get_drvdata(func);
1336 if (!card || !card->adapter) {
1337 pr_err("int: func=%p card=%p adapter=%p\n",
1338 func, card, card ? card->adapter : NULL);
1339 return;
1340 }
1341 adapter = card->adapter;
1342
1343 if (!adapter->pps_uapsd_mode && adapter->ps_state == PS_STATE_SLEEP)
1344 adapter->ps_state = PS_STATE_AWAKE;
1345
1346 mwifiex_interrupt_status(adapter);
1347 mwifiex_main_process(adapter);
1348 }
1349
1350 /*
1351 * This function enables the host interrupt.
1352 *
1353 * The host interrupt enable mask is written to the card
1354 * host interrupt mask register.
1355 */
mwifiex_sdio_enable_host_int(struct mwifiex_adapter * adapter)1356 static int mwifiex_sdio_enable_host_int(struct mwifiex_adapter *adapter)
1357 {
1358 struct sdio_mmc_card *card = adapter->card;
1359 struct sdio_func *func = card->func;
1360 int ret;
1361
1362 sdio_claim_host(func);
1363
1364 /* Request the SDIO IRQ */
1365 ret = sdio_claim_irq(func, mwifiex_sdio_interrupt);
1366 if (ret) {
1367 mwifiex_dbg(adapter, ERROR,
1368 "claim irq failed: ret=%d\n", ret);
1369 goto out;
1370 }
1371
1372 /* Simply write the mask to the register */
1373 ret = mwifiex_write_reg_locked(func, card->reg->host_int_mask_reg,
1374 card->reg->host_int_enable);
1375 if (ret) {
1376 mwifiex_dbg(adapter, ERROR,
1377 "enable host interrupt failed\n");
1378 sdio_release_irq(func);
1379 }
1380
1381 out:
1382 sdio_release_host(func);
1383 return ret;
1384 }
1385
1386 /*
1387 * This function sends a data buffer to the card.
1388 */
mwifiex_sdio_card_to_host(struct mwifiex_adapter * adapter,u32 * type,u8 * buffer,u32 npayload,u32 ioport)1389 static int mwifiex_sdio_card_to_host(struct mwifiex_adapter *adapter,
1390 u32 *type, u8 *buffer,
1391 u32 npayload, u32 ioport)
1392 {
1393 int ret;
1394 u32 nb;
1395
1396 if (!buffer) {
1397 mwifiex_dbg(adapter, ERROR,
1398 "%s: buffer is NULL\n", __func__);
1399 return -1;
1400 }
1401
1402 ret = mwifiex_read_data_sync(adapter, buffer, npayload, ioport, 1);
1403
1404 if (ret) {
1405 mwifiex_dbg(adapter, ERROR,
1406 "%s: read iomem failed: %d\n", __func__,
1407 ret);
1408 return -1;
1409 }
1410
1411 nb = get_unaligned_le16((buffer));
1412 if (nb > npayload) {
1413 mwifiex_dbg(adapter, ERROR,
1414 "%s: invalid packet, nb=%d npayload=%d\n",
1415 __func__, nb, npayload);
1416 return -1;
1417 }
1418
1419 *type = get_unaligned_le16((buffer + 2));
1420
1421 return ret;
1422 }
1423
1424 /*
1425 * This function downloads the firmware to the card.
1426 *
1427 * Firmware is downloaded to the card in blocks. Every block download
1428 * is tested for CRC errors, and retried a number of times before
1429 * returning failure.
1430 */
mwifiex_prog_fw_w_helper(struct mwifiex_adapter * adapter,struct mwifiex_fw_image * fw)1431 static int mwifiex_prog_fw_w_helper(struct mwifiex_adapter *adapter,
1432 struct mwifiex_fw_image *fw)
1433 {
1434 struct sdio_mmc_card *card = adapter->card;
1435 const struct mwifiex_sdio_card_reg *reg = card->reg;
1436 int ret;
1437 u8 *firmware = fw->fw_buf;
1438 u32 firmware_len = fw->fw_len;
1439 u32 offset = 0;
1440 u8 base0, base1;
1441 u8 *fwbuf;
1442 u16 len = 0;
1443 u32 txlen, tx_blocks = 0, tries;
1444 u32 i = 0;
1445
1446 if (!firmware_len) {
1447 mwifiex_dbg(adapter, ERROR,
1448 "firmware image not found! Terminating download\n");
1449 return -1;
1450 }
1451
1452 mwifiex_dbg(adapter, INFO,
1453 "info: downloading FW image (%d bytes)\n",
1454 firmware_len);
1455
1456 /* Assume that the allocated buffer is 8-byte aligned */
1457 fwbuf = kzalloc(MWIFIEX_UPLD_SIZE, GFP_KERNEL);
1458 if (!fwbuf)
1459 return -ENOMEM;
1460
1461 sdio_claim_host(card->func);
1462
1463 /* Perform firmware data transfer */
1464 do {
1465 /* The host polls for the DN_LD_CARD_RDY and CARD_IO_READY
1466 bits */
1467 ret = mwifiex_sdio_poll_card_status(adapter, CARD_IO_READY |
1468 DN_LD_CARD_RDY);
1469 if (ret) {
1470 mwifiex_dbg(adapter, ERROR,
1471 "FW download with helper:\t"
1472 "poll status timeout @ %d\n", offset);
1473 goto done;
1474 }
1475
1476 /* More data? */
1477 if (offset >= firmware_len)
1478 break;
1479
1480 for (tries = 0; tries < MAX_POLL_TRIES; tries++) {
1481 ret = mwifiex_read_reg(adapter, reg->base_0_reg,
1482 &base0);
1483 if (ret) {
1484 mwifiex_dbg(adapter, ERROR,
1485 "dev BASE0 register read failed:\t"
1486 "base0=%#04X(%d). Terminating dnld\n",
1487 base0, base0);
1488 goto done;
1489 }
1490 ret = mwifiex_read_reg(adapter, reg->base_1_reg,
1491 &base1);
1492 if (ret) {
1493 mwifiex_dbg(adapter, ERROR,
1494 "dev BASE1 register read failed:\t"
1495 "base1=%#04X(%d). Terminating dnld\n",
1496 base1, base1);
1497 goto done;
1498 }
1499 len = (u16) (((base1 & 0xff) << 8) | (base0 & 0xff));
1500
1501 if (len)
1502 break;
1503
1504 usleep_range(10, 20);
1505 }
1506
1507 if (!len) {
1508 break;
1509 } else if (len > MWIFIEX_UPLD_SIZE) {
1510 mwifiex_dbg(adapter, ERROR,
1511 "FW dnld failed @ %d, invalid length %d\n",
1512 offset, len);
1513 ret = -1;
1514 goto done;
1515 }
1516
1517 txlen = len;
1518
1519 if (len & BIT(0)) {
1520 i++;
1521 if (i > MAX_WRITE_IOMEM_RETRY) {
1522 mwifiex_dbg(adapter, ERROR,
1523 "FW dnld failed @ %d, over max retry\n",
1524 offset);
1525 ret = -1;
1526 goto done;
1527 }
1528 mwifiex_dbg(adapter, ERROR,
1529 "CRC indicated by the helper:\t"
1530 "len = 0x%04X, txlen = %d\n", len, txlen);
1531 len &= ~BIT(0);
1532 /* Setting this to 0 to resend from same offset */
1533 txlen = 0;
1534 } else {
1535 i = 0;
1536
1537 /* Set blocksize to transfer - checking for last
1538 block */
1539 if (firmware_len - offset < txlen)
1540 txlen = firmware_len - offset;
1541
1542 tx_blocks = (txlen + MWIFIEX_SDIO_BLOCK_SIZE - 1)
1543 / MWIFIEX_SDIO_BLOCK_SIZE;
1544
1545 /* Copy payload to buffer */
1546 memmove(fwbuf, &firmware[offset], txlen);
1547 }
1548
1549 ret = mwifiex_write_data_sync(adapter, fwbuf, tx_blocks *
1550 MWIFIEX_SDIO_BLOCK_SIZE,
1551 adapter->ioport);
1552 if (ret) {
1553 mwifiex_dbg(adapter, ERROR,
1554 "FW download, write iomem (%d) failed @ %d\n",
1555 i, offset);
1556 if (mwifiex_write_reg(adapter, CONFIGURATION_REG, 0x04))
1557 mwifiex_dbg(adapter, ERROR,
1558 "write CFG reg failed\n");
1559
1560 ret = -1;
1561 goto done;
1562 }
1563
1564 offset += txlen;
1565 } while (true);
1566
1567 mwifiex_dbg(adapter, MSG,
1568 "info: FW download over, size %d bytes\n", offset);
1569
1570 ret = 0;
1571 done:
1572 sdio_release_host(card->func);
1573 kfree(fwbuf);
1574 return ret;
1575 }
1576
1577 /*
1578 * This function decodes sdio aggregation pkt.
1579 *
1580 * Based on the data block size and pkt_len,
1581 * skb data will be decoded to few packets.
1582 */
mwifiex_deaggr_sdio_pkt(struct mwifiex_adapter * adapter,struct sk_buff * skb)1583 static void mwifiex_deaggr_sdio_pkt(struct mwifiex_adapter *adapter,
1584 struct sk_buff *skb)
1585 {
1586 u32 total_pkt_len, pkt_len;
1587 struct sk_buff *skb_deaggr;
1588 u16 blk_size;
1589 u8 blk_num;
1590 u8 *data;
1591
1592 data = skb->data;
1593 total_pkt_len = skb->len;
1594
1595 while (total_pkt_len >= (SDIO_HEADER_OFFSET + adapter->intf_hdr_len)) {
1596 if (total_pkt_len < adapter->sdio_rx_block_size)
1597 break;
1598 blk_num = *(data + BLOCK_NUMBER_OFFSET);
1599 blk_size = adapter->sdio_rx_block_size * blk_num;
1600 if (blk_size > total_pkt_len) {
1601 mwifiex_dbg(adapter, ERROR,
1602 "%s: error in blk_size,\t"
1603 "blk_num=%d, blk_size=%d, total_pkt_len=%d\n",
1604 __func__, blk_num, blk_size, total_pkt_len);
1605 break;
1606 }
1607 pkt_len = get_unaligned_le16((data +
1608 SDIO_HEADER_OFFSET));
1609 if ((pkt_len + SDIO_HEADER_OFFSET) > blk_size) {
1610 mwifiex_dbg(adapter, ERROR,
1611 "%s: error in pkt_len,\t"
1612 "pkt_len=%d, blk_size=%d\n",
1613 __func__, pkt_len, blk_size);
1614 break;
1615 }
1616
1617 skb_deaggr = mwifiex_alloc_dma_align_buf(pkt_len, GFP_KERNEL);
1618 if (!skb_deaggr)
1619 break;
1620 skb_put(skb_deaggr, pkt_len);
1621 memcpy(skb_deaggr->data, data + SDIO_HEADER_OFFSET, pkt_len);
1622 skb_pull(skb_deaggr, adapter->intf_hdr_len);
1623
1624 mwifiex_handle_rx_packet(adapter, skb_deaggr);
1625 data += blk_size;
1626 total_pkt_len -= blk_size;
1627 }
1628 }
1629
1630 /*
1631 * This function decodes a received packet.
1632 *
1633 * Based on the type, the packet is treated as either a data, or
1634 * a command response, or an event, and the correct handler
1635 * function is invoked.
1636 */
mwifiex_decode_rx_packet(struct mwifiex_adapter * adapter,struct sk_buff * skb,u32 upld_typ)1637 static int mwifiex_decode_rx_packet(struct mwifiex_adapter *adapter,
1638 struct sk_buff *skb, u32 upld_typ)
1639 {
1640 u8 *cmd_buf;
1641 u16 pkt_len;
1642 struct mwifiex_rxinfo *rx_info;
1643
1644 pkt_len = get_unaligned_le16(skb->data);
1645
1646 if (upld_typ != MWIFIEX_TYPE_AGGR_DATA) {
1647 skb_trim(skb, pkt_len);
1648 skb_pull(skb, adapter->intf_hdr_len);
1649 }
1650
1651 switch (upld_typ) {
1652 case MWIFIEX_TYPE_AGGR_DATA:
1653 mwifiex_dbg(adapter, INFO,
1654 "info: --- Rx: Aggr Data packet ---\n");
1655 rx_info = MWIFIEX_SKB_RXCB(skb);
1656 rx_info->buf_type = MWIFIEX_TYPE_AGGR_DATA;
1657 if (adapter->rx_work_enabled) {
1658 skb_queue_tail(&adapter->rx_data_q, skb);
1659 atomic_inc(&adapter->rx_pending);
1660 adapter->data_received = true;
1661 } else {
1662 mwifiex_deaggr_sdio_pkt(adapter, skb);
1663 dev_kfree_skb_any(skb);
1664 }
1665 break;
1666
1667 case MWIFIEX_TYPE_DATA:
1668 mwifiex_dbg(adapter, DATA,
1669 "info: --- Rx: Data packet ---\n");
1670 if (adapter->rx_work_enabled) {
1671 skb_queue_tail(&adapter->rx_data_q, skb);
1672 adapter->data_received = true;
1673 atomic_inc(&adapter->rx_pending);
1674 } else {
1675 mwifiex_handle_rx_packet(adapter, skb);
1676 }
1677 break;
1678
1679 case MWIFIEX_TYPE_CMD:
1680 mwifiex_dbg(adapter, CMD,
1681 "info: --- Rx: Cmd Response ---\n");
1682 /* take care of curr_cmd = NULL case */
1683 if (!adapter->curr_cmd) {
1684 cmd_buf = adapter->upld_buf;
1685
1686 if (adapter->ps_state == PS_STATE_SLEEP_CFM)
1687 mwifiex_process_sleep_confirm_resp(adapter,
1688 skb->data,
1689 skb->len);
1690
1691 memcpy(cmd_buf, skb->data,
1692 min_t(u32, MWIFIEX_SIZE_OF_CMD_BUFFER,
1693 skb->len));
1694
1695 dev_kfree_skb_any(skb);
1696 } else {
1697 adapter->cmd_resp_received = true;
1698 adapter->curr_cmd->resp_skb = skb;
1699 }
1700 break;
1701
1702 case MWIFIEX_TYPE_EVENT:
1703 mwifiex_dbg(adapter, EVENT,
1704 "info: --- Rx: Event ---\n");
1705 adapter->event_cause = get_unaligned_le32(skb->data);
1706
1707 if ((skb->len > 0) && (skb->len < MAX_EVENT_SIZE))
1708 memcpy(adapter->event_body,
1709 skb->data + MWIFIEX_EVENT_HEADER_LEN,
1710 skb->len);
1711
1712 /* event cause has been saved to adapter->event_cause */
1713 adapter->event_received = true;
1714 adapter->event_skb = skb;
1715
1716 break;
1717
1718 default:
1719 mwifiex_dbg(adapter, ERROR,
1720 "unknown upload type %#x\n", upld_typ);
1721 dev_kfree_skb_any(skb);
1722 break;
1723 }
1724
1725 return 0;
1726 }
1727
1728 /*
1729 * This function transfers received packets from card to driver, performing
1730 * aggregation if required.
1731 *
1732 * For data received on control port, or if aggregation is disabled, the
1733 * received buffers are uploaded as separate packets. However, if aggregation
1734 * is enabled and required, the buffers are copied onto an aggregation buffer,
1735 * provided there is space left, processed and finally uploaded.
1736 */
mwifiex_sdio_card_to_host_mp_aggr(struct mwifiex_adapter * adapter,u16 rx_len,u8 port)1737 static int mwifiex_sdio_card_to_host_mp_aggr(struct mwifiex_adapter *adapter,
1738 u16 rx_len, u8 port)
1739 {
1740 struct sdio_mmc_card *card = adapter->card;
1741 s32 f_do_rx_aggr = 0;
1742 s32 f_do_rx_cur = 0;
1743 s32 f_aggr_cur = 0;
1744 s32 f_post_aggr_cur = 0;
1745 struct sk_buff *skb_deaggr;
1746 struct sk_buff *skb = NULL;
1747 u32 pkt_len, pkt_type, mport, pind;
1748 u8 *curr_ptr;
1749
1750 if ((card->has_control_mask) && (port == CTRL_PORT)) {
1751 /* Read the command Resp without aggr */
1752 mwifiex_dbg(adapter, CMD,
1753 "info: %s: no aggregation for cmd\t"
1754 "response\n", __func__);
1755
1756 f_do_rx_cur = 1;
1757 goto rx_curr_single;
1758 }
1759
1760 if (!card->mpa_rx.enabled) {
1761 mwifiex_dbg(adapter, WARN,
1762 "info: %s: rx aggregation disabled\n",
1763 __func__);
1764
1765 f_do_rx_cur = 1;
1766 goto rx_curr_single;
1767 }
1768
1769 if ((!card->has_control_mask && (card->mp_rd_bitmap &
1770 card->reg->data_port_mask)) ||
1771 (card->has_control_mask && (card->mp_rd_bitmap &
1772 (~((u32) CTRL_PORT_MASK))))) {
1773 /* Some more data RX pending */
1774 mwifiex_dbg(adapter, INFO,
1775 "info: %s: not last packet\n", __func__);
1776
1777 if (MP_RX_AGGR_IN_PROGRESS(card)) {
1778 if (MP_RX_AGGR_BUF_HAS_ROOM(card, rx_len)) {
1779 f_aggr_cur = 1;
1780 } else {
1781 /* No room in Aggr buf, do rx aggr now */
1782 f_do_rx_aggr = 1;
1783 f_post_aggr_cur = 1;
1784 }
1785 } else {
1786 /* Rx aggr not in progress */
1787 f_aggr_cur = 1;
1788 }
1789
1790 } else {
1791 /* No more data RX pending */
1792 mwifiex_dbg(adapter, INFO,
1793 "info: %s: last packet\n", __func__);
1794
1795 if (MP_RX_AGGR_IN_PROGRESS(card)) {
1796 f_do_rx_aggr = 1;
1797 if (MP_RX_AGGR_BUF_HAS_ROOM(card, rx_len))
1798 f_aggr_cur = 1;
1799 else
1800 /* No room in Aggr buf, do rx aggr now */
1801 f_do_rx_cur = 1;
1802 } else {
1803 f_do_rx_cur = 1;
1804 }
1805 }
1806
1807 if (f_aggr_cur) {
1808 mwifiex_dbg(adapter, INFO,
1809 "info: current packet aggregation\n");
1810 /* Curr pkt can be aggregated */
1811 mp_rx_aggr_setup(card, rx_len, port);
1812
1813 if (MP_RX_AGGR_PKT_LIMIT_REACHED(card) ||
1814 mp_rx_aggr_port_limit_reached(card)) {
1815 mwifiex_dbg(adapter, INFO,
1816 "info: %s: aggregated packet\t"
1817 "limit reached\n", __func__);
1818 /* No more pkts allowed in Aggr buf, rx it */
1819 f_do_rx_aggr = 1;
1820 }
1821 }
1822
1823 if (f_do_rx_aggr) {
1824 /* do aggr RX now */
1825 mwifiex_dbg(adapter, DATA,
1826 "info: do_rx_aggr: num of packets: %d\n",
1827 card->mpa_rx.pkt_cnt);
1828
1829 if (card->supports_sdio_new_mode) {
1830 int i;
1831 u32 port_count;
1832
1833 for (i = 0, port_count = 0; i < card->max_ports; i++)
1834 if (card->mpa_rx.ports & BIT(i))
1835 port_count++;
1836
1837 /* Reading data from "start_port + 0" to "start_port +
1838 * port_count -1", so decrease the count by 1
1839 */
1840 port_count--;
1841 mport = (adapter->ioport | SDIO_MPA_ADDR_BASE |
1842 (port_count << 8)) + card->mpa_rx.start_port;
1843 } else {
1844 mport = (adapter->ioport | SDIO_MPA_ADDR_BASE |
1845 (card->mpa_rx.ports << 4)) +
1846 card->mpa_rx.start_port;
1847 }
1848
1849 if (card->mpa_rx.pkt_cnt == 1)
1850 mport = adapter->ioport + card->mpa_rx.start_port;
1851
1852 if (mwifiex_read_data_sync(adapter, card->mpa_rx.buf,
1853 card->mpa_rx.buf_len, mport, 1))
1854 goto error;
1855
1856 curr_ptr = card->mpa_rx.buf;
1857
1858 for (pind = 0; pind < card->mpa_rx.pkt_cnt; pind++) {
1859 u32 *len_arr = card->mpa_rx.len_arr;
1860
1861 /* get curr PKT len & type */
1862 pkt_len = get_unaligned_le16(&curr_ptr[0]);
1863 pkt_type = get_unaligned_le16(&curr_ptr[2]);
1864
1865 /* copy pkt to deaggr buf */
1866 skb_deaggr = mwifiex_alloc_dma_align_buf(len_arr[pind],
1867 GFP_KERNEL);
1868 if (!skb_deaggr) {
1869 mwifiex_dbg(adapter, ERROR, "skb allocation failure\t"
1870 "drop pkt len=%d type=%d\n",
1871 pkt_len, pkt_type);
1872 curr_ptr += len_arr[pind];
1873 continue;
1874 }
1875
1876 skb_put(skb_deaggr, len_arr[pind]);
1877
1878 if ((pkt_type == MWIFIEX_TYPE_DATA ||
1879 (pkt_type == MWIFIEX_TYPE_AGGR_DATA &&
1880 adapter->sdio_rx_aggr_enable)) &&
1881 (pkt_len <= len_arr[pind])) {
1882
1883 memcpy(skb_deaggr->data, curr_ptr, pkt_len);
1884
1885 skb_trim(skb_deaggr, pkt_len);
1886
1887 /* Process de-aggr packet */
1888 mwifiex_decode_rx_packet(adapter, skb_deaggr,
1889 pkt_type);
1890 } else {
1891 mwifiex_dbg(adapter, ERROR,
1892 "drop wrong aggr pkt:\t"
1893 "sdio_single_port_rx_aggr=%d\t"
1894 "type=%d len=%d max_len=%d\n",
1895 adapter->sdio_rx_aggr_enable,
1896 pkt_type, pkt_len, len_arr[pind]);
1897 dev_kfree_skb_any(skb_deaggr);
1898 }
1899 curr_ptr += len_arr[pind];
1900 }
1901 MP_RX_AGGR_BUF_RESET(card);
1902 }
1903
1904 rx_curr_single:
1905 if (f_do_rx_cur) {
1906 mwifiex_dbg(adapter, INFO, "info: RX: port: %d, rx_len: %d\n",
1907 port, rx_len);
1908
1909 skb = mwifiex_alloc_dma_align_buf(rx_len, GFP_KERNEL);
1910 if (!skb) {
1911 mwifiex_dbg(adapter, ERROR,
1912 "single skb allocated fail,\t"
1913 "drop pkt port=%d len=%d\n", port, rx_len);
1914 if (mwifiex_sdio_card_to_host(adapter, &pkt_type,
1915 card->mpa_rx.buf, rx_len,
1916 adapter->ioport + port))
1917 goto error;
1918 return 0;
1919 }
1920
1921 skb_put(skb, rx_len);
1922
1923 if (mwifiex_sdio_card_to_host(adapter, &pkt_type,
1924 skb->data, skb->len,
1925 adapter->ioport + port))
1926 goto error;
1927 if (!adapter->sdio_rx_aggr_enable &&
1928 pkt_type == MWIFIEX_TYPE_AGGR_DATA) {
1929 mwifiex_dbg(adapter, ERROR, "drop wrong pkt type %d\t"
1930 "current SDIO RX Aggr not enabled\n",
1931 pkt_type);
1932 dev_kfree_skb_any(skb);
1933 return 0;
1934 }
1935
1936 mwifiex_decode_rx_packet(adapter, skb, pkt_type);
1937 }
1938 if (f_post_aggr_cur) {
1939 mwifiex_dbg(adapter, INFO,
1940 "info: current packet aggregation\n");
1941 /* Curr pkt can be aggregated */
1942 mp_rx_aggr_setup(card, rx_len, port);
1943 }
1944
1945 return 0;
1946 error:
1947 if (MP_RX_AGGR_IN_PROGRESS(card))
1948 MP_RX_AGGR_BUF_RESET(card);
1949
1950 if (f_do_rx_cur && skb)
1951 /* Single transfer pending. Free curr buff also */
1952 dev_kfree_skb_any(skb);
1953
1954 return -1;
1955 }
1956
1957 /*
1958 * This function checks the current interrupt status.
1959 *
1960 * The following interrupts are checked and handled by this function -
1961 * - Data sent
1962 * - Command sent
1963 * - Packets received
1964 *
1965 * Since the firmware does not generate download ready interrupt if the
1966 * port updated is command port only, command sent interrupt checking
1967 * should be done manually, and for every SDIO interrupt.
1968 *
1969 * In case of Rx packets received, the packets are uploaded from card to
1970 * host and processed accordingly.
1971 */
mwifiex_process_int_status(struct mwifiex_adapter * adapter)1972 static int mwifiex_process_int_status(struct mwifiex_adapter *adapter)
1973 {
1974 struct sdio_mmc_card *card = adapter->card;
1975 const struct mwifiex_sdio_card_reg *reg = card->reg;
1976 int ret = 0;
1977 u8 sdio_ireg;
1978 struct sk_buff *skb;
1979 u8 port = CTRL_PORT;
1980 u32 len_reg_l, len_reg_u;
1981 u32 rx_blocks;
1982 u16 rx_len;
1983 unsigned long flags;
1984 u32 bitmap;
1985 u8 cr;
1986
1987 spin_lock_irqsave(&adapter->int_lock, flags);
1988 sdio_ireg = adapter->int_status;
1989 adapter->int_status = 0;
1990 spin_unlock_irqrestore(&adapter->int_lock, flags);
1991
1992 if (!sdio_ireg)
1993 return ret;
1994
1995 /* Following interrupt is only for SDIO new mode */
1996 if (sdio_ireg & DN_LD_CMD_PORT_HOST_INT_STATUS && adapter->cmd_sent)
1997 adapter->cmd_sent = false;
1998
1999 /* Following interrupt is only for SDIO new mode */
2000 if (sdio_ireg & UP_LD_CMD_PORT_HOST_INT_STATUS) {
2001 u32 pkt_type;
2002
2003 /* read the len of control packet */
2004 rx_len = card->mp_regs[reg->cmd_rd_len_1] << 8;
2005 rx_len |= (u16)card->mp_regs[reg->cmd_rd_len_0];
2006 rx_blocks = DIV_ROUND_UP(rx_len, MWIFIEX_SDIO_BLOCK_SIZE);
2007 if (rx_len <= adapter->intf_hdr_len ||
2008 (rx_blocks * MWIFIEX_SDIO_BLOCK_SIZE) >
2009 MWIFIEX_RX_DATA_BUF_SIZE)
2010 return -1;
2011 rx_len = (u16) (rx_blocks * MWIFIEX_SDIO_BLOCK_SIZE);
2012 mwifiex_dbg(adapter, INFO, "info: rx_len = %d\n", rx_len);
2013
2014 skb = mwifiex_alloc_dma_align_buf(rx_len, GFP_KERNEL);
2015 if (!skb)
2016 return -1;
2017
2018 skb_put(skb, rx_len);
2019
2020 if (mwifiex_sdio_card_to_host(adapter, &pkt_type, skb->data,
2021 skb->len, adapter->ioport |
2022 CMD_PORT_SLCT)) {
2023 mwifiex_dbg(adapter, ERROR,
2024 "%s: failed to card_to_host", __func__);
2025 dev_kfree_skb_any(skb);
2026 goto term_cmd;
2027 }
2028
2029 if ((pkt_type != MWIFIEX_TYPE_CMD) &&
2030 (pkt_type != MWIFIEX_TYPE_EVENT))
2031 mwifiex_dbg(adapter, ERROR,
2032 "%s:Received wrong packet on cmd port",
2033 __func__);
2034
2035 mwifiex_decode_rx_packet(adapter, skb, pkt_type);
2036 }
2037
2038 if (sdio_ireg & DN_LD_HOST_INT_STATUS) {
2039 bitmap = (u32) card->mp_regs[reg->wr_bitmap_l];
2040 bitmap |= ((u32) card->mp_regs[reg->wr_bitmap_u]) << 8;
2041 if (card->supports_sdio_new_mode) {
2042 bitmap |=
2043 ((u32) card->mp_regs[reg->wr_bitmap_1l]) << 16;
2044 bitmap |=
2045 ((u32) card->mp_regs[reg->wr_bitmap_1u]) << 24;
2046 }
2047 card->mp_wr_bitmap = bitmap;
2048
2049 mwifiex_dbg(adapter, INTR,
2050 "int: DNLD: wr_bitmap=0x%x\n",
2051 card->mp_wr_bitmap);
2052 if (adapter->data_sent &&
2053 (card->mp_wr_bitmap & card->mp_data_port_mask)) {
2054 mwifiex_dbg(adapter, INTR,
2055 "info: <--- Tx DONE Interrupt --->\n");
2056 adapter->data_sent = false;
2057 }
2058 }
2059
2060 /* As firmware will not generate download ready interrupt if the port
2061 updated is command port only, cmd_sent should be done for any SDIO
2062 interrupt. */
2063 if (card->has_control_mask && adapter->cmd_sent) {
2064 /* Check if firmware has attach buffer at command port and
2065 update just that in wr_bit_map. */
2066 card->mp_wr_bitmap |=
2067 (u32) card->mp_regs[reg->wr_bitmap_l] & CTRL_PORT_MASK;
2068 if (card->mp_wr_bitmap & CTRL_PORT_MASK)
2069 adapter->cmd_sent = false;
2070 }
2071
2072 mwifiex_dbg(adapter, INTR, "info: cmd_sent=%d data_sent=%d\n",
2073 adapter->cmd_sent, adapter->data_sent);
2074 if (sdio_ireg & UP_LD_HOST_INT_STATUS) {
2075 bitmap = (u32) card->mp_regs[reg->rd_bitmap_l];
2076 bitmap |= ((u32) card->mp_regs[reg->rd_bitmap_u]) << 8;
2077 if (card->supports_sdio_new_mode) {
2078 bitmap |=
2079 ((u32) card->mp_regs[reg->rd_bitmap_1l]) << 16;
2080 bitmap |=
2081 ((u32) card->mp_regs[reg->rd_bitmap_1u]) << 24;
2082 }
2083 card->mp_rd_bitmap = bitmap;
2084 mwifiex_dbg(adapter, INTR,
2085 "int: UPLD: rd_bitmap=0x%x\n",
2086 card->mp_rd_bitmap);
2087
2088 while (true) {
2089 ret = mwifiex_get_rd_port(adapter, &port);
2090 if (ret) {
2091 mwifiex_dbg(adapter, INFO,
2092 "info: no more rd_port available\n");
2093 break;
2094 }
2095 len_reg_l = reg->rd_len_p0_l + (port << 1);
2096 len_reg_u = reg->rd_len_p0_u + (port << 1);
2097 rx_len = ((u16) card->mp_regs[len_reg_u]) << 8;
2098 rx_len |= (u16) card->mp_regs[len_reg_l];
2099 mwifiex_dbg(adapter, INFO,
2100 "info: RX: port=%d rx_len=%u\n",
2101 port, rx_len);
2102 rx_blocks =
2103 (rx_len + MWIFIEX_SDIO_BLOCK_SIZE -
2104 1) / MWIFIEX_SDIO_BLOCK_SIZE;
2105 if (rx_len <= adapter->intf_hdr_len ||
2106 (card->mpa_rx.enabled &&
2107 ((rx_blocks * MWIFIEX_SDIO_BLOCK_SIZE) >
2108 card->mpa_rx.buf_size))) {
2109 mwifiex_dbg(adapter, ERROR,
2110 "invalid rx_len=%d\n",
2111 rx_len);
2112 return -1;
2113 }
2114
2115 rx_len = (u16) (rx_blocks * MWIFIEX_SDIO_BLOCK_SIZE);
2116 mwifiex_dbg(adapter, INFO, "info: rx_len = %d\n",
2117 rx_len);
2118
2119 if (mwifiex_sdio_card_to_host_mp_aggr(adapter, rx_len,
2120 port)) {
2121 mwifiex_dbg(adapter, ERROR,
2122 "card_to_host_mpa failed: int status=%#x\n",
2123 sdio_ireg);
2124 goto term_cmd;
2125 }
2126 }
2127 }
2128
2129 return 0;
2130
2131 term_cmd:
2132 /* terminate cmd */
2133 if (mwifiex_read_reg(adapter, CONFIGURATION_REG, &cr))
2134 mwifiex_dbg(adapter, ERROR, "read CFG reg failed\n");
2135 else
2136 mwifiex_dbg(adapter, INFO,
2137 "info: CFG reg val = %d\n", cr);
2138
2139 if (mwifiex_write_reg(adapter, CONFIGURATION_REG, (cr | 0x04)))
2140 mwifiex_dbg(adapter, ERROR,
2141 "write CFG reg failed\n");
2142 else
2143 mwifiex_dbg(adapter, INFO, "info: write success\n");
2144
2145 if (mwifiex_read_reg(adapter, CONFIGURATION_REG, &cr))
2146 mwifiex_dbg(adapter, ERROR,
2147 "read CFG reg failed\n");
2148 else
2149 mwifiex_dbg(adapter, INFO,
2150 "info: CFG reg val =%x\n", cr);
2151
2152 return -1;
2153 }
2154
2155 /*
2156 * This function aggregates transmission buffers in driver and downloads
2157 * the aggregated packet to card.
2158 *
2159 * The individual packets are aggregated by copying into an aggregation
2160 * buffer and then downloaded to the card. Previous unsent packets in the
2161 * aggregation buffer are pre-copied first before new packets are added.
2162 * Aggregation is done till there is space left in the aggregation buffer,
2163 * or till new packets are available.
2164 *
2165 * The function will only download the packet to the card when aggregation
2166 * stops, otherwise it will just aggregate the packet in aggregation buffer
2167 * and return.
2168 */
mwifiex_host_to_card_mp_aggr(struct mwifiex_adapter * adapter,u8 * payload,u32 pkt_len,u32 port,u32 next_pkt_len)2169 static int mwifiex_host_to_card_mp_aggr(struct mwifiex_adapter *adapter,
2170 u8 *payload, u32 pkt_len, u32 port,
2171 u32 next_pkt_len)
2172 {
2173 struct sdio_mmc_card *card = adapter->card;
2174 int ret = 0;
2175 s32 f_send_aggr_buf = 0;
2176 s32 f_send_cur_buf = 0;
2177 s32 f_precopy_cur_buf = 0;
2178 s32 f_postcopy_cur_buf = 0;
2179 u32 mport;
2180 int index;
2181
2182 if (!card->mpa_tx.enabled ||
2183 (card->has_control_mask && (port == CTRL_PORT)) ||
2184 (card->supports_sdio_new_mode && (port == CMD_PORT_SLCT))) {
2185 mwifiex_dbg(adapter, WARN,
2186 "info: %s: tx aggregation disabled\n",
2187 __func__);
2188
2189 f_send_cur_buf = 1;
2190 goto tx_curr_single;
2191 }
2192
2193 if (next_pkt_len) {
2194 /* More pkt in TX queue */
2195 mwifiex_dbg(adapter, INFO,
2196 "info: %s: more packets in queue.\n",
2197 __func__);
2198
2199 if (MP_TX_AGGR_IN_PROGRESS(card)) {
2200 if (MP_TX_AGGR_BUF_HAS_ROOM(card, pkt_len)) {
2201 f_precopy_cur_buf = 1;
2202
2203 if (!(card->mp_wr_bitmap &
2204 (1 << card->curr_wr_port)) ||
2205 !MP_TX_AGGR_BUF_HAS_ROOM(
2206 card, pkt_len + next_pkt_len))
2207 f_send_aggr_buf = 1;
2208 } else {
2209 /* No room in Aggr buf, send it */
2210 f_send_aggr_buf = 1;
2211
2212 if (!(card->mp_wr_bitmap &
2213 (1 << card->curr_wr_port)))
2214 f_send_cur_buf = 1;
2215 else
2216 f_postcopy_cur_buf = 1;
2217 }
2218 } else {
2219 if (MP_TX_AGGR_BUF_HAS_ROOM(card, pkt_len) &&
2220 (card->mp_wr_bitmap & (1 << card->curr_wr_port)))
2221 f_precopy_cur_buf = 1;
2222 else
2223 f_send_cur_buf = 1;
2224 }
2225 } else {
2226 /* Last pkt in TX queue */
2227 mwifiex_dbg(adapter, INFO,
2228 "info: %s: Last packet in Tx Queue.\n",
2229 __func__);
2230
2231 if (MP_TX_AGGR_IN_PROGRESS(card)) {
2232 /* some packs in Aggr buf already */
2233 f_send_aggr_buf = 1;
2234
2235 if (MP_TX_AGGR_BUF_HAS_ROOM(card, pkt_len))
2236 f_precopy_cur_buf = 1;
2237 else
2238 /* No room in Aggr buf, send it */
2239 f_send_cur_buf = 1;
2240 } else {
2241 f_send_cur_buf = 1;
2242 }
2243 }
2244
2245 if (f_precopy_cur_buf) {
2246 mwifiex_dbg(adapter, DATA,
2247 "data: %s: precopy current buffer\n",
2248 __func__);
2249 MP_TX_AGGR_BUF_PUT(card, payload, pkt_len, port);
2250
2251 if (MP_TX_AGGR_PKT_LIMIT_REACHED(card) ||
2252 mp_tx_aggr_port_limit_reached(card))
2253 /* No more pkts allowed in Aggr buf, send it */
2254 f_send_aggr_buf = 1;
2255 }
2256
2257 if (f_send_aggr_buf) {
2258 mwifiex_dbg(adapter, DATA,
2259 "data: %s: send aggr buffer: %d %d\n",
2260 __func__, card->mpa_tx.start_port,
2261 card->mpa_tx.ports);
2262 if (card->supports_sdio_new_mode) {
2263 u32 port_count;
2264 int i;
2265
2266 for (i = 0, port_count = 0; i < card->max_ports; i++)
2267 if (card->mpa_tx.ports & BIT(i))
2268 port_count++;
2269
2270 /* Writing data from "start_port + 0" to "start_port +
2271 * port_count -1", so decrease the count by 1
2272 */
2273 port_count--;
2274 mport = (adapter->ioport | SDIO_MPA_ADDR_BASE |
2275 (port_count << 8)) + card->mpa_tx.start_port;
2276 } else {
2277 mport = (adapter->ioport | SDIO_MPA_ADDR_BASE |
2278 (card->mpa_tx.ports << 4)) +
2279 card->mpa_tx.start_port;
2280 }
2281
2282 if (card->mpa_tx.pkt_cnt == 1)
2283 mport = adapter->ioport + card->mpa_tx.start_port;
2284
2285 ret = mwifiex_write_data_to_card(adapter, card->mpa_tx.buf,
2286 card->mpa_tx.buf_len, mport);
2287
2288 /* Save the last multi port tx aggregation info to debug log. */
2289 index = adapter->dbg.last_sdio_mp_index;
2290 index = (index + 1) % MWIFIEX_DBG_SDIO_MP_NUM;
2291 adapter->dbg.last_sdio_mp_index = index;
2292 adapter->dbg.last_mp_wr_ports[index] = mport;
2293 adapter->dbg.last_mp_wr_bitmap[index] = card->mp_wr_bitmap;
2294 adapter->dbg.last_mp_wr_len[index] = card->mpa_tx.buf_len;
2295 adapter->dbg.last_mp_curr_wr_port[index] = card->curr_wr_port;
2296
2297 MP_TX_AGGR_BUF_RESET(card);
2298 }
2299
2300 tx_curr_single:
2301 if (f_send_cur_buf) {
2302 mwifiex_dbg(adapter, DATA,
2303 "data: %s: send current buffer %d\n",
2304 __func__, port);
2305 ret = mwifiex_write_data_to_card(adapter, payload, pkt_len,
2306 adapter->ioport + port);
2307 }
2308
2309 if (f_postcopy_cur_buf) {
2310 mwifiex_dbg(adapter, DATA,
2311 "data: %s: postcopy current buffer\n",
2312 __func__);
2313 MP_TX_AGGR_BUF_PUT(card, payload, pkt_len, port);
2314 }
2315
2316 return ret;
2317 }
2318
2319 /*
2320 * This function downloads data from driver to card.
2321 *
2322 * Both commands and data packets are transferred to the card by this
2323 * function.
2324 *
2325 * This function adds the SDIO specific header to the front of the buffer
2326 * before transferring. The header contains the length of the packet and
2327 * the type. The firmware handles the packets based upon this set type.
2328 */
mwifiex_sdio_host_to_card(struct mwifiex_adapter * adapter,u8 type,struct sk_buff * skb,struct mwifiex_tx_param * tx_param)2329 static int mwifiex_sdio_host_to_card(struct mwifiex_adapter *adapter,
2330 u8 type, struct sk_buff *skb,
2331 struct mwifiex_tx_param *tx_param)
2332 {
2333 struct sdio_mmc_card *card = adapter->card;
2334 int ret;
2335 u32 buf_block_len;
2336 u32 blk_size;
2337 u32 port = CTRL_PORT;
2338 u8 *payload = (u8 *)skb->data;
2339 u32 pkt_len = skb->len;
2340
2341 /* Allocate buffer and copy payload */
2342 blk_size = MWIFIEX_SDIO_BLOCK_SIZE;
2343 buf_block_len = (pkt_len + blk_size - 1) / blk_size;
2344 put_unaligned_le16((u16)pkt_len, payload + 0);
2345 put_unaligned_le16((u32)type, payload + 2);
2346
2347
2348 /*
2349 * This is SDIO specific header
2350 * u16 length,
2351 * u16 type (MWIFIEX_TYPE_DATA = 0, MWIFIEX_TYPE_CMD = 1,
2352 * MWIFIEX_TYPE_EVENT = 3)
2353 */
2354 if (type == MWIFIEX_TYPE_DATA) {
2355 ret = mwifiex_get_wr_port_data(adapter, &port);
2356 if (ret) {
2357 mwifiex_dbg(adapter, ERROR,
2358 "%s: no wr_port available\n",
2359 __func__);
2360 return ret;
2361 }
2362 } else {
2363 adapter->cmd_sent = true;
2364 /* Type must be MWIFIEX_TYPE_CMD */
2365
2366 if (pkt_len <= adapter->intf_hdr_len ||
2367 pkt_len > MWIFIEX_UPLD_SIZE)
2368 mwifiex_dbg(adapter, ERROR,
2369 "%s: payload=%p, nb=%d\n",
2370 __func__, payload, pkt_len);
2371
2372 if (card->supports_sdio_new_mode)
2373 port = CMD_PORT_SLCT;
2374 }
2375
2376 /* Transfer data to card */
2377 pkt_len = buf_block_len * blk_size;
2378
2379 if (tx_param)
2380 ret = mwifiex_host_to_card_mp_aggr(adapter, payload, pkt_len,
2381 port, tx_param->next_pkt_len
2382 );
2383 else
2384 ret = mwifiex_host_to_card_mp_aggr(adapter, payload, pkt_len,
2385 port, 0);
2386
2387 if (ret) {
2388 if (type == MWIFIEX_TYPE_CMD)
2389 adapter->cmd_sent = false;
2390 if (type == MWIFIEX_TYPE_DATA) {
2391 adapter->data_sent = false;
2392 /* restore curr_wr_port in error cases */
2393 card->curr_wr_port = port;
2394 card->mp_wr_bitmap |= (u32)(1 << card->curr_wr_port);
2395 }
2396 } else {
2397 if (type == MWIFIEX_TYPE_DATA) {
2398 if (!(card->mp_wr_bitmap & (1 << card->curr_wr_port)))
2399 adapter->data_sent = true;
2400 else
2401 adapter->data_sent = false;
2402 }
2403 }
2404
2405 return ret;
2406 }
2407
2408 /*
2409 * This function allocates the MPA Tx and Rx buffers.
2410 */
mwifiex_alloc_sdio_mpa_buffers(struct mwifiex_adapter * adapter,u32 mpa_tx_buf_size,u32 mpa_rx_buf_size)2411 static int mwifiex_alloc_sdio_mpa_buffers(struct mwifiex_adapter *adapter,
2412 u32 mpa_tx_buf_size, u32 mpa_rx_buf_size)
2413 {
2414 struct sdio_mmc_card *card = adapter->card;
2415 u32 rx_buf_size;
2416 int ret = 0;
2417
2418 card->mpa_tx.buf = kzalloc(mpa_tx_buf_size, GFP_KERNEL);
2419 if (!card->mpa_tx.buf) {
2420 ret = -1;
2421 goto error;
2422 }
2423
2424 card->mpa_tx.buf_size = mpa_tx_buf_size;
2425
2426 rx_buf_size = max_t(u32, mpa_rx_buf_size,
2427 (u32)SDIO_MAX_AGGR_BUF_SIZE);
2428 card->mpa_rx.buf = kzalloc(rx_buf_size, GFP_KERNEL);
2429 if (!card->mpa_rx.buf) {
2430 ret = -1;
2431 goto error;
2432 }
2433
2434 card->mpa_rx.buf_size = rx_buf_size;
2435
2436 error:
2437 if (ret) {
2438 kfree(card->mpa_tx.buf);
2439 kfree(card->mpa_rx.buf);
2440 card->mpa_tx.buf_size = 0;
2441 card->mpa_rx.buf_size = 0;
2442 card->mpa_tx.buf = NULL;
2443 card->mpa_rx.buf = NULL;
2444 }
2445
2446 return ret;
2447 }
2448
2449 /*
2450 * This function unregisters the SDIO device.
2451 *
2452 * The SDIO IRQ is released, the function is disabled and driver
2453 * data is set to null.
2454 */
2455 static void
mwifiex_unregister_dev(struct mwifiex_adapter * adapter)2456 mwifiex_unregister_dev(struct mwifiex_adapter *adapter)
2457 {
2458 struct sdio_mmc_card *card = adapter->card;
2459
2460 if (adapter->card) {
2461 card->adapter = NULL;
2462 sdio_claim_host(card->func);
2463 sdio_disable_func(card->func);
2464 sdio_release_host(card->func);
2465 }
2466 }
2467
2468 /*
2469 * This function registers the SDIO device.
2470 *
2471 * SDIO IRQ is claimed, block size is set and driver data is initialized.
2472 */
mwifiex_register_dev(struct mwifiex_adapter * adapter)2473 static int mwifiex_register_dev(struct mwifiex_adapter *adapter)
2474 {
2475 int ret;
2476 struct sdio_mmc_card *card = adapter->card;
2477 struct sdio_func *func = card->func;
2478 const char *firmware = card->firmware;
2479
2480 /* save adapter pointer in card */
2481 card->adapter = adapter;
2482 adapter->tx_buf_size = card->tx_buf_size;
2483
2484 sdio_claim_host(func);
2485
2486 /* Set block size */
2487 ret = sdio_set_block_size(card->func, MWIFIEX_SDIO_BLOCK_SIZE);
2488 sdio_release_host(func);
2489 if (ret) {
2490 mwifiex_dbg(adapter, ERROR,
2491 "cannot set SDIO block size\n");
2492 return ret;
2493 }
2494
2495 /* Select correct firmware (sdsd or sdiouart) firmware based on the strapping
2496 * option
2497 */
2498 if (card->firmware_sdiouart) {
2499 u8 val;
2500
2501 mwifiex_read_reg(adapter, card->reg->host_strap_reg, &val);
2502 if ((val & card->reg->host_strap_mask) == card->reg->host_strap_value)
2503 firmware = card->firmware_sdiouart;
2504 }
2505 strcpy(adapter->fw_name, firmware);
2506
2507 if (card->fw_dump_enh) {
2508 adapter->mem_type_mapping_tbl = generic_mem_type_map;
2509 adapter->num_mem_types = 1;
2510 } else {
2511 adapter->mem_type_mapping_tbl = mem_type_mapping_tbl;
2512 adapter->num_mem_types = ARRAY_SIZE(mem_type_mapping_tbl);
2513 }
2514
2515 return 0;
2516 }
2517
2518 /*
2519 * This function initializes the SDIO driver.
2520 *
2521 * The following initializations steps are followed -
2522 * - Read the Host interrupt status register to acknowledge
2523 * the first interrupt got from bootloader
2524 * - Disable host interrupt mask register
2525 * - Get SDIO port
2526 * - Initialize SDIO variables in card
2527 * - Allocate MP registers
2528 * - Allocate MPA Tx and Rx buffers
2529 */
mwifiex_init_sdio(struct mwifiex_adapter * adapter)2530 static int mwifiex_init_sdio(struct mwifiex_adapter *adapter)
2531 {
2532 struct sdio_mmc_card *card = adapter->card;
2533 const struct mwifiex_sdio_card_reg *reg = card->reg;
2534 int ret;
2535 u8 sdio_ireg;
2536
2537 sdio_set_drvdata(card->func, card);
2538
2539 /*
2540 * Read the host_int_status_reg for ACK the first interrupt got
2541 * from the bootloader. If we don't do this we get a interrupt
2542 * as soon as we register the irq.
2543 */
2544 mwifiex_read_reg(adapter, card->reg->host_int_status_reg, &sdio_ireg);
2545
2546 /* Get SDIO ioport */
2547 if (mwifiex_init_sdio_ioport(adapter))
2548 return -EIO;
2549
2550 /* Initialize SDIO variables in card */
2551 card->mp_rd_bitmap = 0;
2552 card->mp_wr_bitmap = 0;
2553 card->curr_rd_port = reg->start_rd_port;
2554 card->curr_wr_port = reg->start_wr_port;
2555
2556 card->mp_data_port_mask = reg->data_port_mask;
2557
2558 card->mpa_tx.buf_len = 0;
2559 card->mpa_tx.pkt_cnt = 0;
2560 card->mpa_tx.start_port = 0;
2561
2562 card->mpa_tx.enabled = 1;
2563 card->mpa_tx.pkt_aggr_limit = card->mp_agg_pkt_limit;
2564
2565 card->mpa_rx.buf_len = 0;
2566 card->mpa_rx.pkt_cnt = 0;
2567 card->mpa_rx.start_port = 0;
2568
2569 card->mpa_rx.enabled = 1;
2570 card->mpa_rx.pkt_aggr_limit = card->mp_agg_pkt_limit;
2571
2572 /* Allocate buffers for SDIO MP-A */
2573 card->mp_regs = kzalloc(reg->max_mp_regs, GFP_KERNEL);
2574 if (!card->mp_regs)
2575 return -ENOMEM;
2576
2577 /* Allocate skb pointer buffers */
2578 card->mpa_rx.skb_arr = kcalloc(card->mp_agg_pkt_limit, sizeof(void *),
2579 GFP_KERNEL);
2580 if (!card->mpa_rx.skb_arr) {
2581 kfree(card->mp_regs);
2582 return -ENOMEM;
2583 }
2584
2585 card->mpa_rx.len_arr = kcalloc(card->mp_agg_pkt_limit,
2586 sizeof(*card->mpa_rx.len_arr),
2587 GFP_KERNEL);
2588 if (!card->mpa_rx.len_arr) {
2589 kfree(card->mp_regs);
2590 kfree(card->mpa_rx.skb_arr);
2591 return -ENOMEM;
2592 }
2593
2594 ret = mwifiex_alloc_sdio_mpa_buffers(adapter,
2595 card->mp_tx_agg_buf_size,
2596 card->mp_rx_agg_buf_size);
2597
2598 /* Allocate 32k MPA Tx/Rx buffers if 64k memory allocation fails */
2599 if (ret && (card->mp_tx_agg_buf_size == MWIFIEX_MP_AGGR_BUF_SIZE_MAX ||
2600 card->mp_rx_agg_buf_size == MWIFIEX_MP_AGGR_BUF_SIZE_MAX)) {
2601 /* Disable rx single port aggregation */
2602 adapter->host_disable_sdio_rx_aggr = true;
2603
2604 ret = mwifiex_alloc_sdio_mpa_buffers
2605 (adapter, MWIFIEX_MP_AGGR_BUF_SIZE_32K,
2606 MWIFIEX_MP_AGGR_BUF_SIZE_32K);
2607 if (ret) {
2608 /* Disable multi port aggregation */
2609 card->mpa_tx.enabled = 0;
2610 card->mpa_rx.enabled = 0;
2611 }
2612 }
2613
2614 adapter->auto_tdls = card->can_auto_tdls;
2615 adapter->ext_scan = card->can_ext_scan;
2616 return 0;
2617 }
2618
2619 /*
2620 * This function resets the MPA Tx and Rx buffers.
2621 */
mwifiex_cleanup_mpa_buf(struct mwifiex_adapter * adapter)2622 static void mwifiex_cleanup_mpa_buf(struct mwifiex_adapter *adapter)
2623 {
2624 struct sdio_mmc_card *card = adapter->card;
2625
2626 MP_TX_AGGR_BUF_RESET(card);
2627 MP_RX_AGGR_BUF_RESET(card);
2628 }
2629
2630 /*
2631 * This function cleans up the allocated card buffers.
2632 *
2633 * The following are freed by this function -
2634 * - MP registers
2635 * - MPA Tx buffer
2636 * - MPA Rx buffer
2637 */
mwifiex_cleanup_sdio(struct mwifiex_adapter * adapter)2638 static void mwifiex_cleanup_sdio(struct mwifiex_adapter *adapter)
2639 {
2640 struct sdio_mmc_card *card = adapter->card;
2641
2642 cancel_work_sync(&card->work);
2643
2644 kfree(card->mp_regs);
2645 kfree(card->mpa_rx.skb_arr);
2646 kfree(card->mpa_rx.len_arr);
2647 kfree(card->mpa_tx.buf);
2648 kfree(card->mpa_rx.buf);
2649 }
2650
2651 /*
2652 * This function updates the MP end port in card.
2653 */
2654 static void
mwifiex_update_mp_end_port(struct mwifiex_adapter * adapter,u16 port)2655 mwifiex_update_mp_end_port(struct mwifiex_adapter *adapter, u16 port)
2656 {
2657 struct sdio_mmc_card *card = adapter->card;
2658 const struct mwifiex_sdio_card_reg *reg = card->reg;
2659 int i;
2660
2661 card->mp_end_port = port;
2662
2663 card->mp_data_port_mask = reg->data_port_mask;
2664
2665 if (reg->start_wr_port) {
2666 for (i = 1; i <= card->max_ports - card->mp_end_port; i++)
2667 card->mp_data_port_mask &=
2668 ~(1 << (card->max_ports - i));
2669 }
2670
2671 card->curr_wr_port = reg->start_wr_port;
2672
2673 mwifiex_dbg(adapter, CMD,
2674 "cmd: mp_end_port %d, data port mask 0x%x\n",
2675 port, card->mp_data_port_mask);
2676 }
2677
mwifiex_sdio_card_reset_work(struct mwifiex_adapter * adapter)2678 static void mwifiex_sdio_card_reset_work(struct mwifiex_adapter *adapter)
2679 {
2680 struct sdio_mmc_card *card = adapter->card;
2681 struct sdio_func *func = card->func;
2682 int ret;
2683
2684 /* Prepare the adapter for the reset. */
2685 mwifiex_shutdown_sw(adapter);
2686 clear_bit(MWIFIEX_IFACE_WORK_DEVICE_DUMP, &card->work_flags);
2687 clear_bit(MWIFIEX_IFACE_WORK_CARD_RESET, &card->work_flags);
2688
2689 /* Run a HW reset of the SDIO interface. */
2690 sdio_claim_host(func);
2691 ret = mmc_hw_reset(func->card);
2692 sdio_release_host(func);
2693
2694 switch (ret) {
2695 case 1:
2696 dev_dbg(&func->dev, "SDIO HW reset asynchronous\n");
2697 complete_all(adapter->fw_done);
2698 break;
2699 case 0:
2700 ret = mwifiex_reinit_sw(adapter);
2701 if (ret)
2702 dev_err(&func->dev, "reinit failed: %d\n", ret);
2703 break;
2704 default:
2705 dev_err(&func->dev, "SDIO HW reset failed: %d\n", ret);
2706 break;
2707 }
2708 }
2709
2710 /* This function read/write firmware */
2711 static enum
mwifiex_sdio_rdwr_firmware(struct mwifiex_adapter * adapter,u8 doneflag)2712 rdwr_status mwifiex_sdio_rdwr_firmware(struct mwifiex_adapter *adapter,
2713 u8 doneflag)
2714 {
2715 struct sdio_mmc_card *card = adapter->card;
2716 int ret, tries;
2717 u8 ctrl_data = 0;
2718
2719 sdio_writeb(card->func, card->reg->fw_dump_host_ready,
2720 card->reg->fw_dump_ctrl, &ret);
2721 if (ret) {
2722 mwifiex_dbg(adapter, ERROR, "SDIO Write ERR\n");
2723 return RDWR_STATUS_FAILURE;
2724 }
2725 for (tries = 0; tries < MAX_POLL_TRIES; tries++) {
2726 ctrl_data = sdio_readb(card->func, card->reg->fw_dump_ctrl,
2727 &ret);
2728 if (ret) {
2729 mwifiex_dbg(adapter, ERROR, "SDIO read err\n");
2730 return RDWR_STATUS_FAILURE;
2731 }
2732 if (ctrl_data == FW_DUMP_DONE)
2733 break;
2734 if (doneflag && ctrl_data == doneflag)
2735 return RDWR_STATUS_DONE;
2736 if (ctrl_data != card->reg->fw_dump_host_ready) {
2737 mwifiex_dbg(adapter, WARN,
2738 "The ctrl reg was changed, re-try again\n");
2739 sdio_writeb(card->func, card->reg->fw_dump_host_ready,
2740 card->reg->fw_dump_ctrl, &ret);
2741 if (ret) {
2742 mwifiex_dbg(adapter, ERROR, "SDIO write err\n");
2743 return RDWR_STATUS_FAILURE;
2744 }
2745 }
2746 usleep_range(100, 200);
2747 }
2748 if (ctrl_data == card->reg->fw_dump_host_ready) {
2749 mwifiex_dbg(adapter, ERROR,
2750 "Fail to pull ctrl_data\n");
2751 return RDWR_STATUS_FAILURE;
2752 }
2753
2754 return RDWR_STATUS_SUCCESS;
2755 }
2756
2757 /* This function dump firmware memory to file */
mwifiex_sdio_fw_dump(struct mwifiex_adapter * adapter)2758 static void mwifiex_sdio_fw_dump(struct mwifiex_adapter *adapter)
2759 {
2760 struct sdio_mmc_card *card = adapter->card;
2761 int ret = 0;
2762 unsigned int reg, reg_start, reg_end;
2763 u8 *dbg_ptr, *end_ptr, dump_num, idx, i, read_reg, doneflag = 0;
2764 enum rdwr_status stat;
2765 u32 memory_size;
2766
2767 if (!card->can_dump_fw)
2768 return;
2769
2770 for (idx = 0; idx < ARRAY_SIZE(mem_type_mapping_tbl); idx++) {
2771 struct memory_type_mapping *entry = &mem_type_mapping_tbl[idx];
2772
2773 if (entry->mem_ptr) {
2774 vfree(entry->mem_ptr);
2775 entry->mem_ptr = NULL;
2776 }
2777 entry->mem_size = 0;
2778 }
2779
2780 mwifiex_pm_wakeup_card(adapter);
2781 sdio_claim_host(card->func);
2782
2783 mwifiex_dbg(adapter, MSG, "== mwifiex firmware dump start ==\n");
2784
2785 stat = mwifiex_sdio_rdwr_firmware(adapter, doneflag);
2786 if (stat == RDWR_STATUS_FAILURE)
2787 goto done;
2788
2789 reg = card->reg->fw_dump_start;
2790 /* Read the number of the memories which will dump */
2791 dump_num = sdio_readb(card->func, reg, &ret);
2792 if (ret) {
2793 mwifiex_dbg(adapter, ERROR, "SDIO read memory length err\n");
2794 goto done;
2795 }
2796
2797 /* Read the length of every memory which will dump */
2798 for (idx = 0; idx < dump_num; idx++) {
2799 struct memory_type_mapping *entry = &mem_type_mapping_tbl[idx];
2800
2801 stat = mwifiex_sdio_rdwr_firmware(adapter, doneflag);
2802 if (stat == RDWR_STATUS_FAILURE)
2803 goto done;
2804
2805 memory_size = 0;
2806 reg = card->reg->fw_dump_start;
2807 for (i = 0; i < 4; i++) {
2808 read_reg = sdio_readb(card->func, reg, &ret);
2809 if (ret) {
2810 mwifiex_dbg(adapter, ERROR, "SDIO read err\n");
2811 goto done;
2812 }
2813 memory_size |= (read_reg << i*8);
2814 reg++;
2815 }
2816
2817 if (memory_size == 0) {
2818 mwifiex_dbg(adapter, DUMP, "Firmware dump Finished!\n");
2819 ret = mwifiex_write_reg(adapter,
2820 card->reg->fw_dump_ctrl,
2821 FW_DUMP_READ_DONE);
2822 if (ret) {
2823 mwifiex_dbg(adapter, ERROR, "SDIO write err\n");
2824 return;
2825 }
2826 break;
2827 }
2828
2829 mwifiex_dbg(adapter, DUMP,
2830 "%s_SIZE=0x%x\n", entry->mem_name, memory_size);
2831 entry->mem_ptr = vmalloc(memory_size + 1);
2832 entry->mem_size = memory_size;
2833 if (!entry->mem_ptr) {
2834 mwifiex_dbg(adapter, ERROR, "Vmalloc %s failed\n",
2835 entry->mem_name);
2836 goto done;
2837 }
2838 dbg_ptr = entry->mem_ptr;
2839 end_ptr = dbg_ptr + memory_size;
2840
2841 doneflag = entry->done_flag;
2842 mwifiex_dbg(adapter, DUMP,
2843 "Start %s output, please wait...\n",
2844 entry->mem_name);
2845
2846 do {
2847 stat = mwifiex_sdio_rdwr_firmware(adapter, doneflag);
2848 if (stat == RDWR_STATUS_FAILURE)
2849 goto done;
2850
2851 reg_start = card->reg->fw_dump_start;
2852 reg_end = card->reg->fw_dump_end;
2853 for (reg = reg_start; reg <= reg_end; reg++) {
2854 *dbg_ptr = sdio_readb(card->func, reg, &ret);
2855 if (ret) {
2856 mwifiex_dbg(adapter, ERROR,
2857 "SDIO read err\n");
2858 goto done;
2859 }
2860 if (dbg_ptr < end_ptr)
2861 dbg_ptr++;
2862 else
2863 mwifiex_dbg(adapter, ERROR,
2864 "Allocated buf not enough\n");
2865 }
2866
2867 if (stat != RDWR_STATUS_DONE)
2868 continue;
2869
2870 mwifiex_dbg(adapter, DUMP, "%s done: size=0x%tx\n",
2871 entry->mem_name, dbg_ptr - entry->mem_ptr);
2872 break;
2873 } while (1);
2874 }
2875 mwifiex_dbg(adapter, MSG, "== mwifiex firmware dump end ==\n");
2876
2877 done:
2878 sdio_release_host(card->func);
2879 }
2880
mwifiex_sdio_generic_fw_dump(struct mwifiex_adapter * adapter)2881 static void mwifiex_sdio_generic_fw_dump(struct mwifiex_adapter *adapter)
2882 {
2883 struct sdio_mmc_card *card = adapter->card;
2884 struct memory_type_mapping *entry = &generic_mem_type_map[0];
2885 unsigned int reg, reg_start, reg_end;
2886 u8 start_flag = 0, done_flag = 0;
2887 u8 *dbg_ptr, *end_ptr;
2888 enum rdwr_status stat;
2889 int ret = -1, tries;
2890
2891 if (!card->fw_dump_enh)
2892 return;
2893
2894 if (entry->mem_ptr) {
2895 vfree(entry->mem_ptr);
2896 entry->mem_ptr = NULL;
2897 }
2898 entry->mem_size = 0;
2899
2900 mwifiex_pm_wakeup_card(adapter);
2901 sdio_claim_host(card->func);
2902
2903 mwifiex_dbg(adapter, MSG, "== mwifiex firmware dump start ==\n");
2904
2905 stat = mwifiex_sdio_rdwr_firmware(adapter, done_flag);
2906 if (stat == RDWR_STATUS_FAILURE)
2907 goto done;
2908
2909 reg_start = card->reg->fw_dump_start;
2910 reg_end = card->reg->fw_dump_end;
2911 for (reg = reg_start; reg <= reg_end; reg++) {
2912 for (tries = 0; tries < MAX_POLL_TRIES; tries++) {
2913 start_flag = sdio_readb(card->func, reg, &ret);
2914 if (ret) {
2915 mwifiex_dbg(adapter, ERROR,
2916 "SDIO read err\n");
2917 goto done;
2918 }
2919 if (start_flag == 0)
2920 break;
2921 if (tries == MAX_POLL_TRIES) {
2922 mwifiex_dbg(adapter, ERROR,
2923 "FW not ready to dump\n");
2924 ret = -1;
2925 goto done;
2926 }
2927 }
2928 usleep_range(100, 200);
2929 }
2930
2931 entry->mem_ptr = vmalloc(0xf0000 + 1);
2932 if (!entry->mem_ptr) {
2933 ret = -1;
2934 goto done;
2935 }
2936 dbg_ptr = entry->mem_ptr;
2937 entry->mem_size = 0xf0000;
2938 end_ptr = dbg_ptr + entry->mem_size;
2939
2940 done_flag = entry->done_flag;
2941 mwifiex_dbg(adapter, DUMP,
2942 "Start %s output, please wait...\n", entry->mem_name);
2943
2944 while (true) {
2945 stat = mwifiex_sdio_rdwr_firmware(adapter, done_flag);
2946 if (stat == RDWR_STATUS_FAILURE)
2947 goto done;
2948 for (reg = reg_start; reg <= reg_end; reg++) {
2949 *dbg_ptr = sdio_readb(card->func, reg, &ret);
2950 if (ret) {
2951 mwifiex_dbg(adapter, ERROR,
2952 "SDIO read err\n");
2953 goto done;
2954 }
2955 dbg_ptr++;
2956 if (dbg_ptr >= end_ptr) {
2957 u8 *tmp_ptr;
2958
2959 tmp_ptr = vmalloc(entry->mem_size + 0x4000 + 1);
2960 if (!tmp_ptr)
2961 goto done;
2962
2963 memcpy(tmp_ptr, entry->mem_ptr,
2964 entry->mem_size);
2965 vfree(entry->mem_ptr);
2966 entry->mem_ptr = tmp_ptr;
2967 tmp_ptr = NULL;
2968 dbg_ptr = entry->mem_ptr + entry->mem_size;
2969 entry->mem_size += 0x4000;
2970 end_ptr = entry->mem_ptr + entry->mem_size;
2971 }
2972 }
2973 if (stat == RDWR_STATUS_DONE) {
2974 entry->mem_size = dbg_ptr - entry->mem_ptr;
2975 mwifiex_dbg(adapter, DUMP, "dump %s done size=0x%x\n",
2976 entry->mem_name, entry->mem_size);
2977 ret = 0;
2978 break;
2979 }
2980 }
2981 mwifiex_dbg(adapter, MSG, "== mwifiex firmware dump end ==\n");
2982
2983 done:
2984 if (ret) {
2985 mwifiex_dbg(adapter, ERROR, "firmware dump failed\n");
2986 if (entry->mem_ptr) {
2987 vfree(entry->mem_ptr);
2988 entry->mem_ptr = NULL;
2989 }
2990 entry->mem_size = 0;
2991 }
2992 sdio_release_host(card->func);
2993 }
2994
mwifiex_sdio_device_dump_work(struct mwifiex_adapter * adapter)2995 static void mwifiex_sdio_device_dump_work(struct mwifiex_adapter *adapter)
2996 {
2997 struct sdio_mmc_card *card = adapter->card;
2998
2999 adapter->devdump_data = vzalloc(MWIFIEX_FW_DUMP_SIZE);
3000 if (!adapter->devdump_data) {
3001 mwifiex_dbg(adapter, ERROR,
3002 "vzalloc devdump data failure!\n");
3003 return;
3004 }
3005
3006 mwifiex_drv_info_dump(adapter);
3007 if (card->fw_dump_enh)
3008 mwifiex_sdio_generic_fw_dump(adapter);
3009 else
3010 mwifiex_sdio_fw_dump(adapter);
3011 mwifiex_prepare_fw_dump_info(adapter);
3012 mwifiex_upload_device_dump(adapter);
3013 }
3014
mwifiex_sdio_work(struct work_struct * work)3015 static void mwifiex_sdio_work(struct work_struct *work)
3016 {
3017 struct sdio_mmc_card *card =
3018 container_of(work, struct sdio_mmc_card, work);
3019
3020 if (test_and_clear_bit(MWIFIEX_IFACE_WORK_DEVICE_DUMP,
3021 &card->work_flags))
3022 mwifiex_sdio_device_dump_work(card->adapter);
3023 if (test_and_clear_bit(MWIFIEX_IFACE_WORK_CARD_RESET,
3024 &card->work_flags))
3025 mwifiex_sdio_card_reset_work(card->adapter);
3026 }
3027
3028 /* This function resets the card */
mwifiex_sdio_card_reset(struct mwifiex_adapter * adapter)3029 static void mwifiex_sdio_card_reset(struct mwifiex_adapter *adapter)
3030 {
3031 struct sdio_mmc_card *card = adapter->card;
3032
3033 if (!test_and_set_bit(MWIFIEX_IFACE_WORK_CARD_RESET, &card->work_flags))
3034 schedule_work(&card->work);
3035 }
3036
3037 /* This function dumps FW information */
mwifiex_sdio_device_dump(struct mwifiex_adapter * adapter)3038 static void mwifiex_sdio_device_dump(struct mwifiex_adapter *adapter)
3039 {
3040 struct sdio_mmc_card *card = adapter->card;
3041
3042 if (!test_and_set_bit(MWIFIEX_IFACE_WORK_DEVICE_DUMP,
3043 &card->work_flags))
3044 schedule_work(&card->work);
3045 }
3046
3047 /* Function to dump SDIO function registers and SDIO scratch registers in case
3048 * of FW crash
3049 */
3050 static int
mwifiex_sdio_reg_dump(struct mwifiex_adapter * adapter,char * drv_buf)3051 mwifiex_sdio_reg_dump(struct mwifiex_adapter *adapter, char *drv_buf)
3052 {
3053 char *p = drv_buf;
3054 struct sdio_mmc_card *cardp = adapter->card;
3055 int ret = 0;
3056 u8 count, func, data, index = 0, size = 0;
3057 u8 reg, reg_start, reg_end;
3058 char buf[256], *ptr;
3059
3060 if (!p)
3061 return 0;
3062
3063 mwifiex_dbg(adapter, MSG, "SDIO register dump start\n");
3064
3065 mwifiex_pm_wakeup_card(adapter);
3066
3067 sdio_claim_host(cardp->func);
3068
3069 for (count = 0; count < 5; count++) {
3070 memset(buf, 0, sizeof(buf));
3071 ptr = buf;
3072
3073 switch (count) {
3074 case 0:
3075 /* Read the registers of SDIO function0 */
3076 func = count;
3077 reg_start = 0;
3078 reg_end = 9;
3079 break;
3080 case 1:
3081 /* Read the registers of SDIO function1 */
3082 func = count;
3083 reg_start = cardp->reg->func1_dump_reg_start;
3084 reg_end = cardp->reg->func1_dump_reg_end;
3085 break;
3086 case 2:
3087 index = 0;
3088 func = 1;
3089 reg_start = cardp->reg->func1_spec_reg_table[index++];
3090 size = cardp->reg->func1_spec_reg_num;
3091 reg_end = cardp->reg->func1_spec_reg_table[size-1];
3092 break;
3093 default:
3094 /* Read the scratch registers of SDIO function1 */
3095 if (count == 4)
3096 mdelay(100);
3097 func = 1;
3098 reg_start = cardp->reg->func1_scratch_reg;
3099 reg_end = reg_start + MWIFIEX_SDIO_SCRATCH_SIZE;
3100 }
3101
3102 if (count != 2)
3103 ptr += sprintf(ptr, "SDIO Func%d (%#x-%#x): ",
3104 func, reg_start, reg_end);
3105 else
3106 ptr += sprintf(ptr, "SDIO Func%d: ", func);
3107
3108 for (reg = reg_start; reg <= reg_end;) {
3109 if (func == 0)
3110 data = sdio_f0_readb(cardp->func, reg, &ret);
3111 else
3112 data = sdio_readb(cardp->func, reg, &ret);
3113
3114 if (count == 2)
3115 ptr += sprintf(ptr, "(%#x) ", reg);
3116 if (!ret) {
3117 ptr += sprintf(ptr, "%02x ", data);
3118 } else {
3119 ptr += sprintf(ptr, "ERR");
3120 break;
3121 }
3122
3123 if (count == 2 && reg < reg_end)
3124 reg = cardp->reg->func1_spec_reg_table[index++];
3125 else
3126 reg++;
3127 }
3128
3129 mwifiex_dbg(adapter, MSG, "%s\n", buf);
3130 p += sprintf(p, "%s\n", buf);
3131 }
3132
3133 sdio_release_host(cardp->func);
3134
3135 mwifiex_dbg(adapter, MSG, "SDIO register dump end\n");
3136
3137 return p - drv_buf;
3138 }
3139
3140 /* sdio device/function initialization, code is extracted
3141 * from init_if handler and register_dev handler.
3142 */
mwifiex_sdio_up_dev(struct mwifiex_adapter * adapter)3143 static void mwifiex_sdio_up_dev(struct mwifiex_adapter *adapter)
3144 {
3145 struct sdio_mmc_card *card = adapter->card;
3146 u8 sdio_ireg;
3147
3148 sdio_claim_host(card->func);
3149 sdio_enable_func(card->func);
3150 sdio_set_block_size(card->func, MWIFIEX_SDIO_BLOCK_SIZE);
3151 sdio_release_host(card->func);
3152
3153 /* tx_buf_size might be changed to 3584 by firmware during
3154 * data transfer, we will reset to default size.
3155 */
3156 adapter->tx_buf_size = card->tx_buf_size;
3157
3158 /* Read the host_int_status_reg for ACK the first interrupt got
3159 * from the bootloader. If we don't do this we get a interrupt
3160 * as soon as we register the irq.
3161 */
3162 mwifiex_read_reg(adapter, card->reg->host_int_status_reg, &sdio_ireg);
3163
3164 if (mwifiex_init_sdio_ioport(adapter))
3165 dev_err(&card->func->dev, "error enabling SDIO port\n");
3166 }
3167
3168 static struct mwifiex_if_ops sdio_ops = {
3169 .init_if = mwifiex_init_sdio,
3170 .cleanup_if = mwifiex_cleanup_sdio,
3171 .check_fw_status = mwifiex_check_fw_status,
3172 .check_winner_status = mwifiex_check_winner_status,
3173 .prog_fw = mwifiex_prog_fw_w_helper,
3174 .register_dev = mwifiex_register_dev,
3175 .unregister_dev = mwifiex_unregister_dev,
3176 .enable_int = mwifiex_sdio_enable_host_int,
3177 .disable_int = mwifiex_sdio_disable_host_int,
3178 .process_int_status = mwifiex_process_int_status,
3179 .host_to_card = mwifiex_sdio_host_to_card,
3180 .wakeup = mwifiex_pm_wakeup_card,
3181 .wakeup_complete = mwifiex_pm_wakeup_card_complete,
3182
3183 /* SDIO specific */
3184 .update_mp_end_port = mwifiex_update_mp_end_port,
3185 .cleanup_mpa_buf = mwifiex_cleanup_mpa_buf,
3186 .cmdrsp_complete = mwifiex_sdio_cmdrsp_complete,
3187 .event_complete = mwifiex_sdio_event_complete,
3188 .dnld_fw = mwifiex_sdio_dnld_fw,
3189 .card_reset = mwifiex_sdio_card_reset,
3190 .reg_dump = mwifiex_sdio_reg_dump,
3191 .device_dump = mwifiex_sdio_device_dump,
3192 .deaggr_pkt = mwifiex_deaggr_sdio_pkt,
3193 .up_dev = mwifiex_sdio_up_dev,
3194 };
3195
3196 module_driver(mwifiex_sdio, sdio_register_driver, sdio_unregister_driver);
3197
3198 MODULE_AUTHOR("Marvell International Ltd.");
3199 MODULE_DESCRIPTION("Marvell WiFi-Ex SDIO Driver version " SDIO_VERSION);
3200 MODULE_VERSION(SDIO_VERSION);
3201 MODULE_LICENSE("GPL v2");
3202 MODULE_FIRMWARE(SD8786_DEFAULT_FW_NAME);
3203 MODULE_FIRMWARE(SD8787_DEFAULT_FW_NAME);
3204 MODULE_FIRMWARE(SD8797_DEFAULT_FW_NAME);
3205 MODULE_FIRMWARE(SD8897_DEFAULT_FW_NAME);
3206 MODULE_FIRMWARE(SD8887_DEFAULT_FW_NAME);
3207 MODULE_FIRMWARE(SD8977_DEFAULT_FW_NAME);
3208 MODULE_FIRMWARE(SD8978_SDIOUART_FW_NAME);
3209 MODULE_FIRMWARE(SD8987_DEFAULT_FW_NAME);
3210 MODULE_FIRMWARE(SD8997_DEFAULT_FW_NAME);
3211 MODULE_FIRMWARE(SD8997_SDIOUART_FW_NAME);
3212