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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
22static void mwifiex_sdio_work(struct work_struct *work);
23
24static struct mwifiex_if_ops sdio_ops;
25
26static 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
58static 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
109static 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
162static 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
218static 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
266static 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
321static 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
337static 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
353static 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
369static 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
385static 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
402static 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
419static 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
437static 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
453static 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
470static 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
486static struct memory_type_mapping generic_mem_type_map[] = {
487 {"DUMP", NULL, 0, 0xDD},
488};
489
490static 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
508static 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 */
522static 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 */
540static int
541mwifiex_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
605err_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 */
623static 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. */
655static int
656mwifiex_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 */
666static int
667mwifiex_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 */
681static int
682mwifiex_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 */
701static int
702mwifiex_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 */
733static 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 */
758static int
759mwifiex_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 */
777static 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 */
810static 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 */
832static void
833mwifiex_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 */
876static 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
933static 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 */
945static 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
969MODULE_DEVICE_TABLE(sdio, mwifiex_ids);
970
971static const struct dev_pm_ops mwifiex_sdio_pm_ops = {
972 .suspend = mwifiex_sdio_suspend,
973 .resume = mwifiex_sdio_resume,
974};
975
976static 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 */
994static 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 */
1007static 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
1015static 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 */
1032static 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 */
1072static 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;
1100cont:
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 */
1124static 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 */
1158static 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 */
1209static 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 */
1251static int
1252mwifiex_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 */
1279static 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 */
1293static 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 */
1329static void
1330mwifiex_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 */
1356static 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
1381out:
1382 sdio_release_host(func);
1383 return ret;
1384}
1385
1386/*
1387 * This function sends a data buffer to the card.
1388 */
1389static 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 */
1431static 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;
1571done:
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 */
1583static 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 */
1637static 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 */
1737static 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
1904rx_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;
1946error:
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 */
1972static 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
2131term_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 */
2169static 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
2300tx_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 */
2329static 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 */
2411static 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
2436error:
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 */
2455static void
2456mwifiex_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 */
2473static 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 */
2530static 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 card->mpa_rx.len_arr = kcalloc(card->mp_agg_pkt_limit,
2578 sizeof(*card->mpa_rx.len_arr),
2579 GFP_KERNEL);
2580 if (!card->mpa_rx.len_arr) {
2581 kfree(card->mp_regs);
2582 return -ENOMEM;
2583 }
2584
2585 ret = mwifiex_alloc_sdio_mpa_buffers(adapter,
2586 card->mp_tx_agg_buf_size,
2587 card->mp_rx_agg_buf_size);
2588
2589 /* Allocate 32k MPA Tx/Rx buffers if 64k memory allocation fails */
2590 if (ret && (card->mp_tx_agg_buf_size == MWIFIEX_MP_AGGR_BUF_SIZE_MAX ||
2591 card->mp_rx_agg_buf_size == MWIFIEX_MP_AGGR_BUF_SIZE_MAX)) {
2592 /* Disable rx single port aggregation */
2593 adapter->host_disable_sdio_rx_aggr = true;
2594
2595 ret = mwifiex_alloc_sdio_mpa_buffers
2596 (adapter, MWIFIEX_MP_AGGR_BUF_SIZE_32K,
2597 MWIFIEX_MP_AGGR_BUF_SIZE_32K);
2598 if (ret) {
2599 /* Disable multi port aggregation */
2600 card->mpa_tx.enabled = 0;
2601 card->mpa_rx.enabled = 0;
2602 }
2603 }
2604
2605 adapter->auto_tdls = card->can_auto_tdls;
2606 adapter->ext_scan = card->can_ext_scan;
2607 return 0;
2608}
2609
2610/*
2611 * This function resets the MPA Tx and Rx buffers.
2612 */
2613static void mwifiex_cleanup_mpa_buf(struct mwifiex_adapter *adapter)
2614{
2615 struct sdio_mmc_card *card = adapter->card;
2616
2617 MP_TX_AGGR_BUF_RESET(card);
2618 MP_RX_AGGR_BUF_RESET(card);
2619}
2620
2621/*
2622 * This function cleans up the allocated card buffers.
2623 *
2624 * The following are freed by this function -
2625 * - MP registers
2626 * - MPA Tx buffer
2627 * - MPA Rx buffer
2628 */
2629static void mwifiex_cleanup_sdio(struct mwifiex_adapter *adapter)
2630{
2631 struct sdio_mmc_card *card = adapter->card;
2632
2633 cancel_work_sync(&card->work);
2634
2635 kfree(card->mp_regs);
2636 kfree(card->mpa_rx.len_arr);
2637 kfree(card->mpa_tx.buf);
2638 kfree(card->mpa_rx.buf);
2639}
2640
2641/*
2642 * This function updates the MP end port in card.
2643 */
2644static void
2645mwifiex_update_mp_end_port(struct mwifiex_adapter *adapter, u16 port)
2646{
2647 struct sdio_mmc_card *card = adapter->card;
2648 const struct mwifiex_sdio_card_reg *reg = card->reg;
2649 int i;
2650
2651 card->mp_end_port = port;
2652
2653 card->mp_data_port_mask = reg->data_port_mask;
2654
2655 if (reg->start_wr_port) {
2656 for (i = 1; i <= card->max_ports - card->mp_end_port; i++)
2657 card->mp_data_port_mask &=
2658 ~(1 << (card->max_ports - i));
2659 }
2660
2661 card->curr_wr_port = reg->start_wr_port;
2662
2663 mwifiex_dbg(adapter, CMD,
2664 "cmd: mp_end_port %d, data port mask 0x%x\n",
2665 port, card->mp_data_port_mask);
2666}
2667
2668static void mwifiex_sdio_card_reset_work(struct mwifiex_adapter *adapter)
2669{
2670 struct sdio_mmc_card *card = adapter->card;
2671 struct sdio_func *func = card->func;
2672 int ret;
2673
2674 /* Prepare the adapter for the reset. */
2675 mwifiex_shutdown_sw(adapter);
2676 clear_bit(MWIFIEX_IFACE_WORK_DEVICE_DUMP, &card->work_flags);
2677 clear_bit(MWIFIEX_IFACE_WORK_CARD_RESET, &card->work_flags);
2678
2679 /* Run a HW reset of the SDIO interface. */
2680 sdio_claim_host(func);
2681 ret = mmc_hw_reset(func->card);
2682 sdio_release_host(func);
2683
2684 switch (ret) {
2685 case 1:
2686 dev_dbg(&func->dev, "SDIO HW reset asynchronous\n");
2687 complete_all(adapter->fw_done);
2688 break;
2689 case 0:
2690 ret = mwifiex_reinit_sw(adapter);
2691 if (ret)
2692 dev_err(&func->dev, "reinit failed: %d\n", ret);
2693 break;
2694 default:
2695 dev_err(&func->dev, "SDIO HW reset failed: %d\n", ret);
2696 break;
2697 }
2698}
2699
2700/* This function read/write firmware */
2701static enum
2702rdwr_status mwifiex_sdio_rdwr_firmware(struct mwifiex_adapter *adapter,
2703 u8 doneflag)
2704{
2705 struct sdio_mmc_card *card = adapter->card;
2706 int ret, tries;
2707 u8 ctrl_data = 0;
2708
2709 sdio_writeb(card->func, card->reg->fw_dump_host_ready,
2710 card->reg->fw_dump_ctrl, &ret);
2711 if (ret) {
2712 mwifiex_dbg(adapter, ERROR, "SDIO Write ERR\n");
2713 return RDWR_STATUS_FAILURE;
2714 }
2715 for (tries = 0; tries < MAX_POLL_TRIES; tries++) {
2716 ctrl_data = sdio_readb(card->func, card->reg->fw_dump_ctrl,
2717 &ret);
2718 if (ret) {
2719 mwifiex_dbg(adapter, ERROR, "SDIO read err\n");
2720 return RDWR_STATUS_FAILURE;
2721 }
2722 if (ctrl_data == FW_DUMP_DONE)
2723 break;
2724 if (doneflag && ctrl_data == doneflag)
2725 return RDWR_STATUS_DONE;
2726 if (ctrl_data != card->reg->fw_dump_host_ready) {
2727 mwifiex_dbg(adapter, WARN,
2728 "The ctrl reg was changed, re-try again\n");
2729 sdio_writeb(card->func, card->reg->fw_dump_host_ready,
2730 card->reg->fw_dump_ctrl, &ret);
2731 if (ret) {
2732 mwifiex_dbg(adapter, ERROR, "SDIO write err\n");
2733 return RDWR_STATUS_FAILURE;
2734 }
2735 }
2736 usleep_range(100, 200);
2737 }
2738 if (ctrl_data == card->reg->fw_dump_host_ready) {
2739 mwifiex_dbg(adapter, ERROR,
2740 "Fail to pull ctrl_data\n");
2741 return RDWR_STATUS_FAILURE;
2742 }
2743
2744 return RDWR_STATUS_SUCCESS;
2745}
2746
2747/* This function dump firmware memory to file */
2748static void mwifiex_sdio_fw_dump(struct mwifiex_adapter *adapter)
2749{
2750 struct sdio_mmc_card *card = adapter->card;
2751 int ret = 0;
2752 unsigned int reg, reg_start, reg_end;
2753 u8 *dbg_ptr, *end_ptr, dump_num, idx, i, read_reg, doneflag = 0;
2754 enum rdwr_status stat;
2755 u32 memory_size;
2756
2757 if (!card->can_dump_fw)
2758 return;
2759
2760 for (idx = 0; idx < ARRAY_SIZE(mem_type_mapping_tbl); idx++) {
2761 struct memory_type_mapping *entry = &mem_type_mapping_tbl[idx];
2762
2763 if (entry->mem_ptr) {
2764 vfree(entry->mem_ptr);
2765 entry->mem_ptr = NULL;
2766 }
2767 entry->mem_size = 0;
2768 }
2769
2770 mwifiex_pm_wakeup_card(adapter);
2771 sdio_claim_host(card->func);
2772
2773 mwifiex_dbg(adapter, MSG, "== mwifiex firmware dump start ==\n");
2774
2775 stat = mwifiex_sdio_rdwr_firmware(adapter, doneflag);
2776 if (stat == RDWR_STATUS_FAILURE)
2777 goto done;
2778
2779 reg = card->reg->fw_dump_start;
2780 /* Read the number of the memories which will dump */
2781 dump_num = sdio_readb(card->func, reg, &ret);
2782 if (ret) {
2783 mwifiex_dbg(adapter, ERROR, "SDIO read memory length err\n");
2784 goto done;
2785 }
2786
2787 /* Read the length of every memory which will dump */
2788 for (idx = 0; idx < dump_num; idx++) {
2789 struct memory_type_mapping *entry = &mem_type_mapping_tbl[idx];
2790
2791 stat = mwifiex_sdio_rdwr_firmware(adapter, doneflag);
2792 if (stat == RDWR_STATUS_FAILURE)
2793 goto done;
2794
2795 memory_size = 0;
2796 reg = card->reg->fw_dump_start;
2797 for (i = 0; i < 4; i++) {
2798 read_reg = sdio_readb(card->func, reg, &ret);
2799 if (ret) {
2800 mwifiex_dbg(adapter, ERROR, "SDIO read err\n");
2801 goto done;
2802 }
2803 memory_size |= (read_reg << i*8);
2804 reg++;
2805 }
2806
2807 if (memory_size == 0) {
2808 mwifiex_dbg(adapter, DUMP, "Firmware dump Finished!\n");
2809 ret = mwifiex_write_reg(adapter,
2810 card->reg->fw_dump_ctrl,
2811 FW_DUMP_READ_DONE);
2812 if (ret) {
2813 mwifiex_dbg(adapter, ERROR, "SDIO write err\n");
2814 return;
2815 }
2816 break;
2817 }
2818
2819 mwifiex_dbg(adapter, DUMP,
2820 "%s_SIZE=0x%x\n", entry->mem_name, memory_size);
2821 entry->mem_ptr = vmalloc(memory_size + 1);
2822 entry->mem_size = memory_size;
2823 if (!entry->mem_ptr) {
2824 mwifiex_dbg(adapter, ERROR, "Vmalloc %s failed\n",
2825 entry->mem_name);
2826 goto done;
2827 }
2828 dbg_ptr = entry->mem_ptr;
2829 end_ptr = dbg_ptr + memory_size;
2830
2831 doneflag = entry->done_flag;
2832 mwifiex_dbg(adapter, DUMP,
2833 "Start %s output, please wait...\n",
2834 entry->mem_name);
2835
2836 do {
2837 stat = mwifiex_sdio_rdwr_firmware(adapter, doneflag);
2838 if (stat == RDWR_STATUS_FAILURE)
2839 goto done;
2840
2841 reg_start = card->reg->fw_dump_start;
2842 reg_end = card->reg->fw_dump_end;
2843 for (reg = reg_start; reg <= reg_end; reg++) {
2844 *dbg_ptr = sdio_readb(card->func, reg, &ret);
2845 if (ret) {
2846 mwifiex_dbg(adapter, ERROR,
2847 "SDIO read err\n");
2848 goto done;
2849 }
2850 if (dbg_ptr < end_ptr)
2851 dbg_ptr++;
2852 else
2853 mwifiex_dbg(adapter, ERROR,
2854 "Allocated buf not enough\n");
2855 }
2856
2857 if (stat != RDWR_STATUS_DONE)
2858 continue;
2859
2860 mwifiex_dbg(adapter, DUMP, "%s done: size=0x%tx\n",
2861 entry->mem_name, dbg_ptr - entry->mem_ptr);
2862 break;
2863 } while (1);
2864 }
2865 mwifiex_dbg(adapter, MSG, "== mwifiex firmware dump end ==\n");
2866
2867done:
2868 sdio_release_host(card->func);
2869}
2870
2871static void mwifiex_sdio_generic_fw_dump(struct mwifiex_adapter *adapter)
2872{
2873 struct sdio_mmc_card *card = adapter->card;
2874 struct memory_type_mapping *entry = &generic_mem_type_map[0];
2875 unsigned int reg, reg_start, reg_end;
2876 u8 start_flag = 0, done_flag = 0;
2877 u8 *dbg_ptr, *end_ptr;
2878 enum rdwr_status stat;
2879 int ret = -1, tries;
2880
2881 if (!card->fw_dump_enh)
2882 return;
2883
2884 if (entry->mem_ptr) {
2885 vfree(entry->mem_ptr);
2886 entry->mem_ptr = NULL;
2887 }
2888 entry->mem_size = 0;
2889
2890 mwifiex_pm_wakeup_card(adapter);
2891 sdio_claim_host(card->func);
2892
2893 mwifiex_dbg(adapter, MSG, "== mwifiex firmware dump start ==\n");
2894
2895 stat = mwifiex_sdio_rdwr_firmware(adapter, done_flag);
2896 if (stat == RDWR_STATUS_FAILURE)
2897 goto done;
2898
2899 reg_start = card->reg->fw_dump_start;
2900 reg_end = card->reg->fw_dump_end;
2901 for (reg = reg_start; reg <= reg_end; reg++) {
2902 for (tries = 0; tries < MAX_POLL_TRIES; tries++) {
2903 start_flag = sdio_readb(card->func, reg, &ret);
2904 if (ret) {
2905 mwifiex_dbg(adapter, ERROR,
2906 "SDIO read err\n");
2907 goto done;
2908 }
2909 if (start_flag == 0)
2910 break;
2911 if (tries == MAX_POLL_TRIES) {
2912 mwifiex_dbg(adapter, ERROR,
2913 "FW not ready to dump\n");
2914 ret = -1;
2915 goto done;
2916 }
2917 }
2918 usleep_range(100, 200);
2919 }
2920
2921 entry->mem_ptr = vmalloc(0xf0000 + 1);
2922 if (!entry->mem_ptr) {
2923 ret = -1;
2924 goto done;
2925 }
2926 dbg_ptr = entry->mem_ptr;
2927 entry->mem_size = 0xf0000;
2928 end_ptr = dbg_ptr + entry->mem_size;
2929
2930 done_flag = entry->done_flag;
2931 mwifiex_dbg(adapter, DUMP,
2932 "Start %s output, please wait...\n", entry->mem_name);
2933
2934 while (true) {
2935 stat = mwifiex_sdio_rdwr_firmware(adapter, done_flag);
2936 if (stat == RDWR_STATUS_FAILURE)
2937 goto done;
2938 for (reg = reg_start; reg <= reg_end; reg++) {
2939 *dbg_ptr = sdio_readb(card->func, reg, &ret);
2940 if (ret) {
2941 mwifiex_dbg(adapter, ERROR,
2942 "SDIO read err\n");
2943 goto done;
2944 }
2945 dbg_ptr++;
2946 if (dbg_ptr >= end_ptr) {
2947 u8 *tmp_ptr;
2948
2949 tmp_ptr = vmalloc(entry->mem_size + 0x4000 + 1);
2950 if (!tmp_ptr)
2951 goto done;
2952
2953 memcpy(tmp_ptr, entry->mem_ptr,
2954 entry->mem_size);
2955 vfree(entry->mem_ptr);
2956 entry->mem_ptr = tmp_ptr;
2957 tmp_ptr = NULL;
2958 dbg_ptr = entry->mem_ptr + entry->mem_size;
2959 entry->mem_size += 0x4000;
2960 end_ptr = entry->mem_ptr + entry->mem_size;
2961 }
2962 }
2963 if (stat == RDWR_STATUS_DONE) {
2964 entry->mem_size = dbg_ptr - entry->mem_ptr;
2965 mwifiex_dbg(adapter, DUMP, "dump %s done size=0x%x\n",
2966 entry->mem_name, entry->mem_size);
2967 ret = 0;
2968 break;
2969 }
2970 }
2971 mwifiex_dbg(adapter, MSG, "== mwifiex firmware dump end ==\n");
2972
2973done:
2974 if (ret) {
2975 mwifiex_dbg(adapter, ERROR, "firmware dump failed\n");
2976 if (entry->mem_ptr) {
2977 vfree(entry->mem_ptr);
2978 entry->mem_ptr = NULL;
2979 }
2980 entry->mem_size = 0;
2981 }
2982 sdio_release_host(card->func);
2983}
2984
2985static void mwifiex_sdio_device_dump_work(struct mwifiex_adapter *adapter)
2986{
2987 struct sdio_mmc_card *card = adapter->card;
2988
2989 adapter->devdump_data = vzalloc(MWIFIEX_FW_DUMP_SIZE);
2990 if (!adapter->devdump_data) {
2991 mwifiex_dbg(adapter, ERROR,
2992 "vzalloc devdump data failure!\n");
2993 return;
2994 }
2995
2996 mwifiex_drv_info_dump(adapter);
2997 if (card->fw_dump_enh)
2998 mwifiex_sdio_generic_fw_dump(adapter);
2999 else
3000 mwifiex_sdio_fw_dump(adapter);
3001 mwifiex_prepare_fw_dump_info(adapter);
3002 mwifiex_upload_device_dump(adapter);
3003}
3004
3005static void mwifiex_sdio_work(struct work_struct *work)
3006{
3007 struct sdio_mmc_card *card =
3008 container_of(work, struct sdio_mmc_card, work);
3009
3010 if (test_and_clear_bit(MWIFIEX_IFACE_WORK_DEVICE_DUMP,
3011 &card->work_flags))
3012 mwifiex_sdio_device_dump_work(card->adapter);
3013 if (test_and_clear_bit(MWIFIEX_IFACE_WORK_CARD_RESET,
3014 &card->work_flags))
3015 mwifiex_sdio_card_reset_work(card->adapter);
3016}
3017
3018/* This function resets the card */
3019static void mwifiex_sdio_card_reset(struct mwifiex_adapter *adapter)
3020{
3021 struct sdio_mmc_card *card = adapter->card;
3022
3023 if (!test_and_set_bit(MWIFIEX_IFACE_WORK_CARD_RESET, &card->work_flags))
3024 schedule_work(&card->work);
3025}
3026
3027/* This function dumps FW information */
3028static void mwifiex_sdio_device_dump(struct mwifiex_adapter *adapter)
3029{
3030 struct sdio_mmc_card *card = adapter->card;
3031
3032 if (!test_and_set_bit(MWIFIEX_IFACE_WORK_DEVICE_DUMP,
3033 &card->work_flags))
3034 schedule_work(&card->work);
3035}
3036
3037/* Function to dump SDIO function registers and SDIO scratch registers in case
3038 * of FW crash
3039 */
3040static int
3041mwifiex_sdio_reg_dump(struct mwifiex_adapter *adapter, char *drv_buf)
3042{
3043 char *p = drv_buf;
3044 struct sdio_mmc_card *cardp = adapter->card;
3045 int ret = 0;
3046 u8 count, func, data, index = 0, size = 0;
3047 u8 reg, reg_start, reg_end;
3048 char buf[256], *ptr;
3049
3050 if (!p)
3051 return 0;
3052
3053 mwifiex_dbg(adapter, MSG, "SDIO register dump start\n");
3054
3055 mwifiex_pm_wakeup_card(adapter);
3056
3057 sdio_claim_host(cardp->func);
3058
3059 for (count = 0; count < 5; count++) {
3060 memset(buf, 0, sizeof(buf));
3061 ptr = buf;
3062
3063 switch (count) {
3064 case 0:
3065 /* Read the registers of SDIO function0 */
3066 func = count;
3067 reg_start = 0;
3068 reg_end = 9;
3069 break;
3070 case 1:
3071 /* Read the registers of SDIO function1 */
3072 func = count;
3073 reg_start = cardp->reg->func1_dump_reg_start;
3074 reg_end = cardp->reg->func1_dump_reg_end;
3075 break;
3076 case 2:
3077 index = 0;
3078 func = 1;
3079 reg_start = cardp->reg->func1_spec_reg_table[index++];
3080 size = cardp->reg->func1_spec_reg_num;
3081 reg_end = cardp->reg->func1_spec_reg_table[size-1];
3082 break;
3083 default:
3084 /* Read the scratch registers of SDIO function1 */
3085 if (count == 4)
3086 mdelay(100);
3087 func = 1;
3088 reg_start = cardp->reg->func1_scratch_reg;
3089 reg_end = reg_start + MWIFIEX_SDIO_SCRATCH_SIZE;
3090 }
3091
3092 if (count != 2)
3093 ptr += sprintf(ptr, "SDIO Func%d (%#x-%#x): ",
3094 func, reg_start, reg_end);
3095 else
3096 ptr += sprintf(ptr, "SDIO Func%d: ", func);
3097
3098 for (reg = reg_start; reg <= reg_end;) {
3099 if (func == 0)
3100 data = sdio_f0_readb(cardp->func, reg, &ret);
3101 else
3102 data = sdio_readb(cardp->func, reg, &ret);
3103
3104 if (count == 2)
3105 ptr += sprintf(ptr, "(%#x) ", reg);
3106 if (!ret) {
3107 ptr += sprintf(ptr, "%02x ", data);
3108 } else {
3109 ptr += sprintf(ptr, "ERR");
3110 break;
3111 }
3112
3113 if (count == 2 && reg < reg_end)
3114 reg = cardp->reg->func1_spec_reg_table[index++];
3115 else
3116 reg++;
3117 }
3118
3119 mwifiex_dbg(adapter, MSG, "%s\n", buf);
3120 p += sprintf(p, "%s\n", buf);
3121 }
3122
3123 sdio_release_host(cardp->func);
3124
3125 mwifiex_dbg(adapter, MSG, "SDIO register dump end\n");
3126
3127 return p - drv_buf;
3128}
3129
3130/* sdio device/function initialization, code is extracted
3131 * from init_if handler and register_dev handler.
3132 */
3133static void mwifiex_sdio_up_dev(struct mwifiex_adapter *adapter)
3134{
3135 struct sdio_mmc_card *card = adapter->card;
3136 u8 sdio_ireg;
3137
3138 sdio_claim_host(card->func);
3139 sdio_enable_func(card->func);
3140 sdio_set_block_size(card->func, MWIFIEX_SDIO_BLOCK_SIZE);
3141 sdio_release_host(card->func);
3142
3143 /* tx_buf_size might be changed to 3584 by firmware during
3144 * data transfer, we will reset to default size.
3145 */
3146 adapter->tx_buf_size = card->tx_buf_size;
3147
3148 /* Read the host_int_status_reg for ACK the first interrupt got
3149 * from the bootloader. If we don't do this we get a interrupt
3150 * as soon as we register the irq.
3151 */
3152 mwifiex_read_reg(adapter, card->reg->host_int_status_reg, &sdio_ireg);
3153
3154 if (mwifiex_init_sdio_ioport(adapter))
3155 dev_err(&card->func->dev, "error enabling SDIO port\n");
3156}
3157
3158static struct mwifiex_if_ops sdio_ops = {
3159 .init_if = mwifiex_init_sdio,
3160 .cleanup_if = mwifiex_cleanup_sdio,
3161 .check_fw_status = mwifiex_check_fw_status,
3162 .check_winner_status = mwifiex_check_winner_status,
3163 .prog_fw = mwifiex_prog_fw_w_helper,
3164 .register_dev = mwifiex_register_dev,
3165 .unregister_dev = mwifiex_unregister_dev,
3166 .enable_int = mwifiex_sdio_enable_host_int,
3167 .disable_int = mwifiex_sdio_disable_host_int,
3168 .process_int_status = mwifiex_process_int_status,
3169 .host_to_card = mwifiex_sdio_host_to_card,
3170 .wakeup = mwifiex_pm_wakeup_card,
3171 .wakeup_complete = mwifiex_pm_wakeup_card_complete,
3172
3173 /* SDIO specific */
3174 .update_mp_end_port = mwifiex_update_mp_end_port,
3175 .cleanup_mpa_buf = mwifiex_cleanup_mpa_buf,
3176 .cmdrsp_complete = mwifiex_sdio_cmdrsp_complete,
3177 .event_complete = mwifiex_sdio_event_complete,
3178 .dnld_fw = mwifiex_sdio_dnld_fw,
3179 .card_reset = mwifiex_sdio_card_reset,
3180 .reg_dump = mwifiex_sdio_reg_dump,
3181 .device_dump = mwifiex_sdio_device_dump,
3182 .deaggr_pkt = mwifiex_deaggr_sdio_pkt,
3183 .up_dev = mwifiex_sdio_up_dev,
3184};
3185
3186module_driver(mwifiex_sdio, sdio_register_driver, sdio_unregister_driver);
3187
3188MODULE_AUTHOR("Marvell International Ltd.");
3189MODULE_DESCRIPTION("Marvell WiFi-Ex SDIO Driver version " SDIO_VERSION);
3190MODULE_VERSION(SDIO_VERSION);
3191MODULE_LICENSE("GPL v2");
3192MODULE_FIRMWARE(SD8786_DEFAULT_FW_NAME);
3193MODULE_FIRMWARE(SD8787_DEFAULT_FW_NAME);
3194MODULE_FIRMWARE(SD8797_DEFAULT_FW_NAME);
3195MODULE_FIRMWARE(SD8897_DEFAULT_FW_NAME);
3196MODULE_FIRMWARE(SD8887_DEFAULT_FW_NAME);
3197MODULE_FIRMWARE(SD8977_DEFAULT_FW_NAME);
3198MODULE_FIRMWARE(SD8978_SDIOUART_FW_NAME);
3199MODULE_FIRMWARE(SD8987_DEFAULT_FW_NAME);
3200MODULE_FIRMWARE(SD8997_DEFAULT_FW_NAME);
3201MODULE_FIRMWARE(SD8997_SDIOUART_FW_NAME);
1/*
2 * NXP Wireless LAN device driver: SDIO specific handling
3 *
4 * Copyright 2011-2020 NXP
5 *
6 * This software file (the "File") is distributed by NXP
7 * under the terms of the GNU General Public License Version 2, June 1991
8 * (the "License"). You may use, redistribute and/or modify this File in
9 * accordance with the terms and conditions of the License, a copy of which
10 * is available by writing to the Free Software Foundation, Inc.,
11 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the
12 * worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
13 *
14 * THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
16 * ARE EXPRESSLY DISCLAIMED. The License provides additional details about
17 * this warranty disclaimer.
18 */
19
20#include <linux/firmware.h>
21
22#include "decl.h"
23#include "ioctl.h"
24#include "util.h"
25#include "fw.h"
26#include "main.h"
27#include "wmm.h"
28#include "11n.h"
29#include "sdio.h"
30
31
32#define SDIO_VERSION "1.0"
33
34static void mwifiex_sdio_work(struct work_struct *work);
35
36static struct mwifiex_if_ops sdio_ops;
37
38static const struct mwifiex_sdio_card_reg mwifiex_reg_sd87xx = {
39 .start_rd_port = 1,
40 .start_wr_port = 1,
41 .base_0_reg = 0x0040,
42 .base_1_reg = 0x0041,
43 .poll_reg = 0x30,
44 .host_int_enable = UP_LD_HOST_INT_MASK | DN_LD_HOST_INT_MASK,
45 .host_int_rsr_reg = 0x1,
46 .host_int_mask_reg = 0x02,
47 .host_int_status_reg = 0x03,
48 .status_reg_0 = 0x60,
49 .status_reg_1 = 0x61,
50 .sdio_int_mask = 0x3f,
51 .data_port_mask = 0x0000fffe,
52 .io_port_0_reg = 0x78,
53 .io_port_1_reg = 0x79,
54 .io_port_2_reg = 0x7A,
55 .max_mp_regs = 64,
56 .rd_bitmap_l = 0x04,
57 .rd_bitmap_u = 0x05,
58 .wr_bitmap_l = 0x06,
59 .wr_bitmap_u = 0x07,
60 .rd_len_p0_l = 0x08,
61 .rd_len_p0_u = 0x09,
62 .card_misc_cfg_reg = 0x6c,
63 .func1_dump_reg_start = 0x0,
64 .func1_dump_reg_end = 0x9,
65 .func1_scratch_reg = 0x60,
66 .func1_spec_reg_num = 5,
67 .func1_spec_reg_table = {0x28, 0x30, 0x34, 0x38, 0x3c},
68};
69
70static const struct mwifiex_sdio_card_reg mwifiex_reg_sd8897 = {
71 .start_rd_port = 0,
72 .start_wr_port = 0,
73 .base_0_reg = 0x60,
74 .base_1_reg = 0x61,
75 .poll_reg = 0x50,
76 .host_int_enable = UP_LD_HOST_INT_MASK | DN_LD_HOST_INT_MASK |
77 CMD_PORT_UPLD_INT_MASK | CMD_PORT_DNLD_INT_MASK,
78 .host_int_rsr_reg = 0x1,
79 .host_int_status_reg = 0x03,
80 .host_int_mask_reg = 0x02,
81 .status_reg_0 = 0xc0,
82 .status_reg_1 = 0xc1,
83 .sdio_int_mask = 0xff,
84 .data_port_mask = 0xffffffff,
85 .io_port_0_reg = 0xD8,
86 .io_port_1_reg = 0xD9,
87 .io_port_2_reg = 0xDA,
88 .max_mp_regs = 184,
89 .rd_bitmap_l = 0x04,
90 .rd_bitmap_u = 0x05,
91 .rd_bitmap_1l = 0x06,
92 .rd_bitmap_1u = 0x07,
93 .wr_bitmap_l = 0x08,
94 .wr_bitmap_u = 0x09,
95 .wr_bitmap_1l = 0x0a,
96 .wr_bitmap_1u = 0x0b,
97 .rd_len_p0_l = 0x0c,
98 .rd_len_p0_u = 0x0d,
99 .card_misc_cfg_reg = 0xcc,
100 .card_cfg_2_1_reg = 0xcd,
101 .cmd_rd_len_0 = 0xb4,
102 .cmd_rd_len_1 = 0xb5,
103 .cmd_rd_len_2 = 0xb6,
104 .cmd_rd_len_3 = 0xb7,
105 .cmd_cfg_0 = 0xb8,
106 .cmd_cfg_1 = 0xb9,
107 .cmd_cfg_2 = 0xba,
108 .cmd_cfg_3 = 0xbb,
109 .fw_dump_host_ready = 0xee,
110 .fw_dump_ctrl = 0xe2,
111 .fw_dump_start = 0xe3,
112 .fw_dump_end = 0xea,
113 .func1_dump_reg_start = 0x0,
114 .func1_dump_reg_end = 0xb,
115 .func1_scratch_reg = 0xc0,
116 .func1_spec_reg_num = 8,
117 .func1_spec_reg_table = {0x4C, 0x50, 0x54, 0x55, 0x58,
118 0x59, 0x5c, 0x5d},
119};
120
121static const struct mwifiex_sdio_card_reg mwifiex_reg_sd8977 = {
122 .start_rd_port = 0,
123 .start_wr_port = 0,
124 .base_0_reg = 0xF8,
125 .base_1_reg = 0xF9,
126 .poll_reg = 0x5C,
127 .host_int_enable = UP_LD_HOST_INT_MASK | DN_LD_HOST_INT_MASK |
128 CMD_PORT_UPLD_INT_MASK | CMD_PORT_DNLD_INT_MASK,
129 .host_int_rsr_reg = 0x4,
130 .host_int_status_reg = 0x0C,
131 .host_int_mask_reg = 0x08,
132 .status_reg_0 = 0xE8,
133 .status_reg_1 = 0xE9,
134 .sdio_int_mask = 0xff,
135 .data_port_mask = 0xffffffff,
136 .io_port_0_reg = 0xE4,
137 .io_port_1_reg = 0xE5,
138 .io_port_2_reg = 0xE6,
139 .max_mp_regs = 196,
140 .rd_bitmap_l = 0x10,
141 .rd_bitmap_u = 0x11,
142 .rd_bitmap_1l = 0x12,
143 .rd_bitmap_1u = 0x13,
144 .wr_bitmap_l = 0x14,
145 .wr_bitmap_u = 0x15,
146 .wr_bitmap_1l = 0x16,
147 .wr_bitmap_1u = 0x17,
148 .rd_len_p0_l = 0x18,
149 .rd_len_p0_u = 0x19,
150 .card_misc_cfg_reg = 0xd8,
151 .card_cfg_2_1_reg = 0xd9,
152 .cmd_rd_len_0 = 0xc0,
153 .cmd_rd_len_1 = 0xc1,
154 .cmd_rd_len_2 = 0xc2,
155 .cmd_rd_len_3 = 0xc3,
156 .cmd_cfg_0 = 0xc4,
157 .cmd_cfg_1 = 0xc5,
158 .cmd_cfg_2 = 0xc6,
159 .cmd_cfg_3 = 0xc7,
160 .fw_dump_host_ready = 0xcc,
161 .fw_dump_ctrl = 0xf0,
162 .fw_dump_start = 0xf1,
163 .fw_dump_end = 0xf8,
164 .func1_dump_reg_start = 0x10,
165 .func1_dump_reg_end = 0x17,
166 .func1_scratch_reg = 0xe8,
167 .func1_spec_reg_num = 13,
168 .func1_spec_reg_table = {0x08, 0x58, 0x5C, 0x5D,
169 0x60, 0x61, 0x62, 0x64,
170 0x65, 0x66, 0x68, 0x69,
171 0x6a},
172};
173
174static const struct mwifiex_sdio_card_reg mwifiex_reg_sd8997 = {
175 .start_rd_port = 0,
176 .start_wr_port = 0,
177 .base_0_reg = 0xF8,
178 .base_1_reg = 0xF9,
179 .poll_reg = 0x5C,
180 .host_int_enable = UP_LD_HOST_INT_MASK | DN_LD_HOST_INT_MASK |
181 CMD_PORT_UPLD_INT_MASK | CMD_PORT_DNLD_INT_MASK,
182 .host_int_rsr_reg = 0x4,
183 .host_int_status_reg = 0x0C,
184 .host_int_mask_reg = 0x08,
185 .status_reg_0 = 0xE8,
186 .status_reg_1 = 0xE9,
187 .sdio_int_mask = 0xff,
188 .data_port_mask = 0xffffffff,
189 .io_port_0_reg = 0xE4,
190 .io_port_1_reg = 0xE5,
191 .io_port_2_reg = 0xE6,
192 .max_mp_regs = 196,
193 .rd_bitmap_l = 0x10,
194 .rd_bitmap_u = 0x11,
195 .rd_bitmap_1l = 0x12,
196 .rd_bitmap_1u = 0x13,
197 .wr_bitmap_l = 0x14,
198 .wr_bitmap_u = 0x15,
199 .wr_bitmap_1l = 0x16,
200 .wr_bitmap_1u = 0x17,
201 .rd_len_p0_l = 0x18,
202 .rd_len_p0_u = 0x19,
203 .card_misc_cfg_reg = 0xd8,
204 .card_cfg_2_1_reg = 0xd9,
205 .cmd_rd_len_0 = 0xc0,
206 .cmd_rd_len_1 = 0xc1,
207 .cmd_rd_len_2 = 0xc2,
208 .cmd_rd_len_3 = 0xc3,
209 .cmd_cfg_0 = 0xc4,
210 .cmd_cfg_1 = 0xc5,
211 .cmd_cfg_2 = 0xc6,
212 .cmd_cfg_3 = 0xc7,
213 .fw_dump_host_ready = 0xcc,
214 .fw_dump_ctrl = 0xf0,
215 .fw_dump_start = 0xf1,
216 .fw_dump_end = 0xf8,
217 .func1_dump_reg_start = 0x10,
218 .func1_dump_reg_end = 0x17,
219 .func1_scratch_reg = 0xe8,
220 .func1_spec_reg_num = 13,
221 .func1_spec_reg_table = {0x08, 0x58, 0x5C, 0x5D,
222 0x60, 0x61, 0x62, 0x64,
223 0x65, 0x66, 0x68, 0x69,
224 0x6a},
225};
226
227static const struct mwifiex_sdio_card_reg mwifiex_reg_sd8887 = {
228 .start_rd_port = 0,
229 .start_wr_port = 0,
230 .base_0_reg = 0x6C,
231 .base_1_reg = 0x6D,
232 .poll_reg = 0x5C,
233 .host_int_enable = UP_LD_HOST_INT_MASK | DN_LD_HOST_INT_MASK |
234 CMD_PORT_UPLD_INT_MASK | CMD_PORT_DNLD_INT_MASK,
235 .host_int_rsr_reg = 0x4,
236 .host_int_status_reg = 0x0C,
237 .host_int_mask_reg = 0x08,
238 .status_reg_0 = 0x90,
239 .status_reg_1 = 0x91,
240 .sdio_int_mask = 0xff,
241 .data_port_mask = 0xffffffff,
242 .io_port_0_reg = 0xE4,
243 .io_port_1_reg = 0xE5,
244 .io_port_2_reg = 0xE6,
245 .max_mp_regs = 196,
246 .rd_bitmap_l = 0x10,
247 .rd_bitmap_u = 0x11,
248 .rd_bitmap_1l = 0x12,
249 .rd_bitmap_1u = 0x13,
250 .wr_bitmap_l = 0x14,
251 .wr_bitmap_u = 0x15,
252 .wr_bitmap_1l = 0x16,
253 .wr_bitmap_1u = 0x17,
254 .rd_len_p0_l = 0x18,
255 .rd_len_p0_u = 0x19,
256 .card_misc_cfg_reg = 0xd8,
257 .card_cfg_2_1_reg = 0xd9,
258 .cmd_rd_len_0 = 0xc0,
259 .cmd_rd_len_1 = 0xc1,
260 .cmd_rd_len_2 = 0xc2,
261 .cmd_rd_len_3 = 0xc3,
262 .cmd_cfg_0 = 0xc4,
263 .cmd_cfg_1 = 0xc5,
264 .cmd_cfg_2 = 0xc6,
265 .cmd_cfg_3 = 0xc7,
266 .func1_dump_reg_start = 0x10,
267 .func1_dump_reg_end = 0x17,
268 .func1_scratch_reg = 0x90,
269 .func1_spec_reg_num = 13,
270 .func1_spec_reg_table = {0x08, 0x58, 0x5C, 0x5D, 0x60,
271 0x61, 0x62, 0x64, 0x65, 0x66,
272 0x68, 0x69, 0x6a},
273};
274
275static const struct mwifiex_sdio_card_reg mwifiex_reg_sd8987 = {
276 .start_rd_port = 0,
277 .start_wr_port = 0,
278 .base_0_reg = 0xF8,
279 .base_1_reg = 0xF9,
280 .poll_reg = 0x5C,
281 .host_int_enable = UP_LD_HOST_INT_MASK | DN_LD_HOST_INT_MASK |
282 CMD_PORT_UPLD_INT_MASK | CMD_PORT_DNLD_INT_MASK,
283 .host_int_rsr_reg = 0x4,
284 .host_int_status_reg = 0x0C,
285 .host_int_mask_reg = 0x08,
286 .status_reg_0 = 0xE8,
287 .status_reg_1 = 0xE9,
288 .sdio_int_mask = 0xff,
289 .data_port_mask = 0xffffffff,
290 .io_port_0_reg = 0xE4,
291 .io_port_1_reg = 0xE5,
292 .io_port_2_reg = 0xE6,
293 .max_mp_regs = 196,
294 .rd_bitmap_l = 0x10,
295 .rd_bitmap_u = 0x11,
296 .rd_bitmap_1l = 0x12,
297 .rd_bitmap_1u = 0x13,
298 .wr_bitmap_l = 0x14,
299 .wr_bitmap_u = 0x15,
300 .wr_bitmap_1l = 0x16,
301 .wr_bitmap_1u = 0x17,
302 .rd_len_p0_l = 0x18,
303 .rd_len_p0_u = 0x19,
304 .card_misc_cfg_reg = 0xd8,
305 .card_cfg_2_1_reg = 0xd9,
306 .cmd_rd_len_0 = 0xc0,
307 .cmd_rd_len_1 = 0xc1,
308 .cmd_rd_len_2 = 0xc2,
309 .cmd_rd_len_3 = 0xc3,
310 .cmd_cfg_0 = 0xc4,
311 .cmd_cfg_1 = 0xc5,
312 .cmd_cfg_2 = 0xc6,
313 .cmd_cfg_3 = 0xc7,
314 .fw_dump_host_ready = 0xcc,
315 .fw_dump_ctrl = 0xf9,
316 .fw_dump_start = 0xf1,
317 .fw_dump_end = 0xf8,
318 .func1_dump_reg_start = 0x10,
319 .func1_dump_reg_end = 0x17,
320 .func1_scratch_reg = 0xE8,
321 .func1_spec_reg_num = 13,
322 .func1_spec_reg_table = {0x08, 0x58, 0x5C, 0x5D, 0x60,
323 0x61, 0x62, 0x64, 0x65, 0x66,
324 0x68, 0x69, 0x6a},
325};
326
327static const struct mwifiex_sdio_device mwifiex_sdio_sd8786 = {
328 .firmware = SD8786_DEFAULT_FW_NAME,
329 .reg = &mwifiex_reg_sd87xx,
330 .max_ports = 16,
331 .mp_agg_pkt_limit = 8,
332 .tx_buf_size = MWIFIEX_TX_DATA_BUF_SIZE_2K,
333 .mp_tx_agg_buf_size = MWIFIEX_MP_AGGR_BUF_SIZE_16K,
334 .mp_rx_agg_buf_size = MWIFIEX_MP_AGGR_BUF_SIZE_16K,
335 .supports_sdio_new_mode = false,
336 .has_control_mask = true,
337 .can_dump_fw = false,
338 .can_auto_tdls = false,
339 .can_ext_scan = false,
340};
341
342static const struct mwifiex_sdio_device mwifiex_sdio_sd8787 = {
343 .firmware = SD8787_DEFAULT_FW_NAME,
344 .reg = &mwifiex_reg_sd87xx,
345 .max_ports = 16,
346 .mp_agg_pkt_limit = 8,
347 .tx_buf_size = MWIFIEX_TX_DATA_BUF_SIZE_2K,
348 .mp_tx_agg_buf_size = MWIFIEX_MP_AGGR_BUF_SIZE_16K,
349 .mp_rx_agg_buf_size = MWIFIEX_MP_AGGR_BUF_SIZE_16K,
350 .supports_sdio_new_mode = false,
351 .has_control_mask = true,
352 .can_dump_fw = false,
353 .can_auto_tdls = false,
354 .can_ext_scan = true,
355};
356
357static const struct mwifiex_sdio_device mwifiex_sdio_sd8797 = {
358 .firmware = SD8797_DEFAULT_FW_NAME,
359 .reg = &mwifiex_reg_sd87xx,
360 .max_ports = 16,
361 .mp_agg_pkt_limit = 8,
362 .tx_buf_size = MWIFIEX_TX_DATA_BUF_SIZE_2K,
363 .mp_tx_agg_buf_size = MWIFIEX_MP_AGGR_BUF_SIZE_16K,
364 .mp_rx_agg_buf_size = MWIFIEX_MP_AGGR_BUF_SIZE_16K,
365 .supports_sdio_new_mode = false,
366 .has_control_mask = true,
367 .can_dump_fw = false,
368 .can_auto_tdls = false,
369 .can_ext_scan = true,
370};
371
372static const struct mwifiex_sdio_device mwifiex_sdio_sd8897 = {
373 .firmware = SD8897_DEFAULT_FW_NAME,
374 .reg = &mwifiex_reg_sd8897,
375 .max_ports = 32,
376 .mp_agg_pkt_limit = 16,
377 .tx_buf_size = MWIFIEX_TX_DATA_BUF_SIZE_4K,
378 .mp_tx_agg_buf_size = MWIFIEX_MP_AGGR_BUF_SIZE_MAX,
379 .mp_rx_agg_buf_size = MWIFIEX_MP_AGGR_BUF_SIZE_MAX,
380 .supports_sdio_new_mode = true,
381 .has_control_mask = false,
382 .can_dump_fw = true,
383 .can_auto_tdls = false,
384 .can_ext_scan = true,
385};
386
387static const struct mwifiex_sdio_device mwifiex_sdio_sd8977 = {
388 .firmware = SD8977_DEFAULT_FW_NAME,
389 .reg = &mwifiex_reg_sd8977,
390 .max_ports = 32,
391 .mp_agg_pkt_limit = 16,
392 .tx_buf_size = MWIFIEX_TX_DATA_BUF_SIZE_4K,
393 .mp_tx_agg_buf_size = MWIFIEX_MP_AGGR_BUF_SIZE_MAX,
394 .mp_rx_agg_buf_size = MWIFIEX_MP_AGGR_BUF_SIZE_MAX,
395 .supports_sdio_new_mode = true,
396 .has_control_mask = false,
397 .can_dump_fw = true,
398 .fw_dump_enh = true,
399 .can_auto_tdls = false,
400 .can_ext_scan = true,
401};
402
403static const struct mwifiex_sdio_device mwifiex_sdio_sd8997 = {
404 .firmware = SD8997_DEFAULT_FW_NAME,
405 .reg = &mwifiex_reg_sd8997,
406 .max_ports = 32,
407 .mp_agg_pkt_limit = 16,
408 .tx_buf_size = MWIFIEX_TX_DATA_BUF_SIZE_4K,
409 .mp_tx_agg_buf_size = MWIFIEX_MP_AGGR_BUF_SIZE_MAX,
410 .mp_rx_agg_buf_size = MWIFIEX_MP_AGGR_BUF_SIZE_MAX,
411 .supports_sdio_new_mode = true,
412 .has_control_mask = false,
413 .can_dump_fw = true,
414 .fw_dump_enh = true,
415 .can_auto_tdls = false,
416 .can_ext_scan = true,
417};
418
419static const struct mwifiex_sdio_device mwifiex_sdio_sd8887 = {
420 .firmware = SD8887_DEFAULT_FW_NAME,
421 .reg = &mwifiex_reg_sd8887,
422 .max_ports = 32,
423 .mp_agg_pkt_limit = 16,
424 .tx_buf_size = MWIFIEX_TX_DATA_BUF_SIZE_2K,
425 .mp_tx_agg_buf_size = MWIFIEX_MP_AGGR_BUF_SIZE_32K,
426 .mp_rx_agg_buf_size = MWIFIEX_MP_AGGR_BUF_SIZE_32K,
427 .supports_sdio_new_mode = true,
428 .has_control_mask = false,
429 .can_dump_fw = false,
430 .can_auto_tdls = true,
431 .can_ext_scan = true,
432};
433
434static const struct mwifiex_sdio_device mwifiex_sdio_sd8987 = {
435 .firmware = SD8987_DEFAULT_FW_NAME,
436 .reg = &mwifiex_reg_sd8987,
437 .max_ports = 32,
438 .mp_agg_pkt_limit = 16,
439 .tx_buf_size = MWIFIEX_TX_DATA_BUF_SIZE_2K,
440 .mp_tx_agg_buf_size = MWIFIEX_MP_AGGR_BUF_SIZE_MAX,
441 .mp_rx_agg_buf_size = MWIFIEX_MP_AGGR_BUF_SIZE_MAX,
442 .supports_sdio_new_mode = true,
443 .has_control_mask = false,
444 .can_dump_fw = true,
445 .fw_dump_enh = true,
446 .can_auto_tdls = true,
447 .can_ext_scan = true,
448};
449
450static const struct mwifiex_sdio_device mwifiex_sdio_sd8801 = {
451 .firmware = SD8801_DEFAULT_FW_NAME,
452 .reg = &mwifiex_reg_sd87xx,
453 .max_ports = 16,
454 .mp_agg_pkt_limit = 8,
455 .supports_sdio_new_mode = false,
456 .has_control_mask = true,
457 .tx_buf_size = MWIFIEX_TX_DATA_BUF_SIZE_2K,
458 .mp_tx_agg_buf_size = MWIFIEX_MP_AGGR_BUF_SIZE_16K,
459 .mp_rx_agg_buf_size = MWIFIEX_MP_AGGR_BUF_SIZE_16K,
460 .can_dump_fw = false,
461 .can_auto_tdls = false,
462 .can_ext_scan = true,
463};
464
465static struct memory_type_mapping generic_mem_type_map[] = {
466 {"DUMP", NULL, 0, 0xDD},
467};
468
469static struct memory_type_mapping mem_type_mapping_tbl[] = {
470 {"ITCM", NULL, 0, 0xF0},
471 {"DTCM", NULL, 0, 0xF1},
472 {"SQRAM", NULL, 0, 0xF2},
473 {"APU", NULL, 0, 0xF3},
474 {"CIU", NULL, 0, 0xF4},
475 {"ICU", NULL, 0, 0xF5},
476 {"MAC", NULL, 0, 0xF6},
477 {"EXT7", NULL, 0, 0xF7},
478 {"EXT8", NULL, 0, 0xF8},
479 {"EXT9", NULL, 0, 0xF9},
480 {"EXT10", NULL, 0, 0xFA},
481 {"EXT11", NULL, 0, 0xFB},
482 {"EXT12", NULL, 0, 0xFC},
483 {"EXT13", NULL, 0, 0xFD},
484 {"EXTLAST", NULL, 0, 0xFE},
485};
486
487static const struct of_device_id mwifiex_sdio_of_match_table[] = {
488 { .compatible = "marvell,sd8897" },
489 { .compatible = "marvell,sd8997" },
490 { }
491};
492
493/* This function parse device tree node using mmc subnode devicetree API.
494 * The device node is saved in card->plt_of_node.
495 * if the device tree node exist and include interrupts attributes, this
496 * function will also request platform specific wakeup interrupt.
497 */
498static int mwifiex_sdio_probe_of(struct device *dev)
499{
500 if (!of_match_node(mwifiex_sdio_of_match_table, dev->of_node)) {
501 dev_err(dev, "required compatible string missing\n");
502 return -EINVAL;
503 }
504
505 return 0;
506}
507
508/*
509 * SDIO probe.
510 *
511 * This function probes an mwifiex device and registers it. It allocates
512 * the card structure, enables SDIO function number and initiates the
513 * device registration and initialization procedure by adding a logical
514 * interface.
515 */
516static int
517mwifiex_sdio_probe(struct sdio_func *func, const struct sdio_device_id *id)
518{
519 int ret;
520 struct sdio_mmc_card *card = NULL;
521
522 pr_debug("info: vendor=0x%4.04X device=0x%4.04X class=%d function=%d\n",
523 func->vendor, func->device, func->class, func->num);
524
525 card = devm_kzalloc(&func->dev, sizeof(*card), GFP_KERNEL);
526 if (!card)
527 return -ENOMEM;
528
529 init_completion(&card->fw_done);
530
531 card->func = func;
532
533 func->card->quirks |= MMC_QUIRK_BLKSZ_FOR_BYTE_MODE;
534
535 if (id->driver_data) {
536 struct mwifiex_sdio_device *data = (void *)id->driver_data;
537
538 card->firmware = data->firmware;
539 card->reg = data->reg;
540 card->max_ports = data->max_ports;
541 card->mp_agg_pkt_limit = data->mp_agg_pkt_limit;
542 card->supports_sdio_new_mode = data->supports_sdio_new_mode;
543 card->has_control_mask = data->has_control_mask;
544 card->tx_buf_size = data->tx_buf_size;
545 card->mp_tx_agg_buf_size = data->mp_tx_agg_buf_size;
546 card->mp_rx_agg_buf_size = data->mp_rx_agg_buf_size;
547 card->can_dump_fw = data->can_dump_fw;
548 card->fw_dump_enh = data->fw_dump_enh;
549 card->can_auto_tdls = data->can_auto_tdls;
550 card->can_ext_scan = data->can_ext_scan;
551 INIT_WORK(&card->work, mwifiex_sdio_work);
552 }
553
554 sdio_claim_host(func);
555 ret = sdio_enable_func(func);
556 sdio_release_host(func);
557
558 if (ret) {
559 dev_err(&func->dev, "failed to enable function\n");
560 return ret;
561 }
562
563 /* device tree node parsing and platform specific configuration*/
564 if (func->dev.of_node) {
565 ret = mwifiex_sdio_probe_of(&func->dev);
566 if (ret)
567 goto err_disable;
568 }
569
570 ret = mwifiex_add_card(card, &card->fw_done, &sdio_ops,
571 MWIFIEX_SDIO, &func->dev);
572 if (ret) {
573 dev_err(&func->dev, "add card failed\n");
574 goto err_disable;
575 }
576
577 return 0;
578
579err_disable:
580 sdio_claim_host(func);
581 sdio_disable_func(func);
582 sdio_release_host(func);
583
584 return ret;
585}
586
587/*
588 * SDIO resume.
589 *
590 * Kernel needs to suspend all functions separately. Therefore all
591 * registered functions must have drivers with suspend and resume
592 * methods. Failing that the kernel simply removes the whole card.
593 *
594 * If already not resumed, this function turns on the traffic and
595 * sends a host sleep cancel request to the firmware.
596 */
597static int mwifiex_sdio_resume(struct device *dev)
598{
599 struct sdio_func *func = dev_to_sdio_func(dev);
600 struct sdio_mmc_card *card;
601 struct mwifiex_adapter *adapter;
602
603 card = sdio_get_drvdata(func);
604 if (!card || !card->adapter) {
605 dev_err(dev, "resume: invalid card or adapter\n");
606 return 0;
607 }
608
609 adapter = card->adapter;
610
611 if (!test_bit(MWIFIEX_IS_SUSPENDED, &adapter->work_flags)) {
612 mwifiex_dbg(adapter, WARN,
613 "device already resumed\n");
614 return 0;
615 }
616
617 clear_bit(MWIFIEX_IS_SUSPENDED, &adapter->work_flags);
618
619 /* Disable Host Sleep */
620 mwifiex_cancel_hs(mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA),
621 MWIFIEX_SYNC_CMD);
622
623 mwifiex_disable_wake(adapter);
624
625 return 0;
626}
627
628/* Write data into SDIO card register. Caller claims SDIO device. */
629static int
630mwifiex_write_reg_locked(struct sdio_func *func, u32 reg, u8 data)
631{
632 int ret = -1;
633
634 sdio_writeb(func, data, reg, &ret);
635 return ret;
636}
637
638/* This function writes data into SDIO card register.
639 */
640static int
641mwifiex_write_reg(struct mwifiex_adapter *adapter, u32 reg, u8 data)
642{
643 struct sdio_mmc_card *card = adapter->card;
644 int ret;
645
646 sdio_claim_host(card->func);
647 ret = mwifiex_write_reg_locked(card->func, reg, data);
648 sdio_release_host(card->func);
649
650 return ret;
651}
652
653/* This function reads data from SDIO card register.
654 */
655static int
656mwifiex_read_reg(struct mwifiex_adapter *adapter, u32 reg, u8 *data)
657{
658 struct sdio_mmc_card *card = adapter->card;
659 int ret = -1;
660 u8 val;
661
662 sdio_claim_host(card->func);
663 val = sdio_readb(card->func, reg, &ret);
664 sdio_release_host(card->func);
665
666 *data = val;
667
668 return ret;
669}
670
671/* This function writes multiple data into SDIO card memory.
672 *
673 * This does not work in suspended mode.
674 */
675static int
676mwifiex_write_data_sync(struct mwifiex_adapter *adapter,
677 u8 *buffer, u32 pkt_len, u32 port)
678{
679 struct sdio_mmc_card *card = adapter->card;
680 int ret;
681 u8 blk_mode =
682 (port & MWIFIEX_SDIO_BYTE_MODE_MASK) ? BYTE_MODE : BLOCK_MODE;
683 u32 blk_size = (blk_mode == BLOCK_MODE) ? MWIFIEX_SDIO_BLOCK_SIZE : 1;
684 u32 blk_cnt =
685 (blk_mode ==
686 BLOCK_MODE) ? (pkt_len /
687 MWIFIEX_SDIO_BLOCK_SIZE) : pkt_len;
688 u32 ioport = (port & MWIFIEX_SDIO_IO_PORT_MASK);
689
690 if (test_bit(MWIFIEX_IS_SUSPENDED, &adapter->work_flags)) {
691 mwifiex_dbg(adapter, ERROR,
692 "%s: not allowed while suspended\n", __func__);
693 return -1;
694 }
695
696 sdio_claim_host(card->func);
697
698 ret = sdio_writesb(card->func, ioport, buffer, blk_cnt * blk_size);
699
700 sdio_release_host(card->func);
701
702 return ret;
703}
704
705/* This function reads multiple data from SDIO card memory.
706 */
707static int mwifiex_read_data_sync(struct mwifiex_adapter *adapter, u8 *buffer,
708 u32 len, u32 port, u8 claim)
709{
710 struct sdio_mmc_card *card = adapter->card;
711 int ret;
712 u8 blk_mode = (port & MWIFIEX_SDIO_BYTE_MODE_MASK) ? BYTE_MODE
713 : BLOCK_MODE;
714 u32 blk_size = (blk_mode == BLOCK_MODE) ? MWIFIEX_SDIO_BLOCK_SIZE : 1;
715 u32 blk_cnt = (blk_mode == BLOCK_MODE) ? (len / MWIFIEX_SDIO_BLOCK_SIZE)
716 : len;
717 u32 ioport = (port & MWIFIEX_SDIO_IO_PORT_MASK);
718
719 if (claim)
720 sdio_claim_host(card->func);
721
722 ret = sdio_readsb(card->func, buffer, ioport, blk_cnt * blk_size);
723
724 if (claim)
725 sdio_release_host(card->func);
726
727 return ret;
728}
729
730/* This function reads the firmware status.
731 */
732static int
733mwifiex_sdio_read_fw_status(struct mwifiex_adapter *adapter, u16 *dat)
734{
735 struct sdio_mmc_card *card = adapter->card;
736 const struct mwifiex_sdio_card_reg *reg = card->reg;
737 u8 fws0, fws1;
738
739 if (mwifiex_read_reg(adapter, reg->status_reg_0, &fws0))
740 return -1;
741
742 if (mwifiex_read_reg(adapter, reg->status_reg_1, &fws1))
743 return -1;
744
745 *dat = (u16)((fws1 << 8) | fws0);
746 return 0;
747}
748
749/* This function checks the firmware status in card.
750 */
751static int mwifiex_check_fw_status(struct mwifiex_adapter *adapter,
752 u32 poll_num)
753{
754 int ret = 0;
755 u16 firmware_stat;
756 u32 tries;
757
758 for (tries = 0; tries < poll_num; tries++) {
759 ret = mwifiex_sdio_read_fw_status(adapter, &firmware_stat);
760 if (ret)
761 continue;
762 if (firmware_stat == FIRMWARE_READY_SDIO) {
763 ret = 0;
764 break;
765 }
766
767 msleep(100);
768 ret = -1;
769 }
770
771 return ret;
772}
773
774/* This function checks if WLAN is the winner.
775 */
776static int mwifiex_check_winner_status(struct mwifiex_adapter *adapter)
777{
778 int ret = 0;
779 u8 winner = 0;
780 struct sdio_mmc_card *card = adapter->card;
781
782 if (mwifiex_read_reg(adapter, card->reg->status_reg_0, &winner))
783 return -1;
784
785 if (winner)
786 adapter->winner = 0;
787 else
788 adapter->winner = 1;
789
790 return ret;
791}
792
793/*
794 * SDIO remove.
795 *
796 * This function removes the interface and frees up the card structure.
797 */
798static void
799mwifiex_sdio_remove(struct sdio_func *func)
800{
801 struct sdio_mmc_card *card;
802 struct mwifiex_adapter *adapter;
803 struct mwifiex_private *priv;
804 int ret = 0;
805 u16 firmware_stat;
806
807 card = sdio_get_drvdata(func);
808 if (!card)
809 return;
810
811 wait_for_completion(&card->fw_done);
812
813 adapter = card->adapter;
814 if (!adapter || !adapter->priv_num)
815 return;
816
817 mwifiex_dbg(adapter, INFO, "info: SDIO func num=%d\n", func->num);
818
819 ret = mwifiex_sdio_read_fw_status(adapter, &firmware_stat);
820 if (!ret && firmware_stat == FIRMWARE_READY_SDIO &&
821 !adapter->mfg_mode) {
822 mwifiex_deauthenticate_all(adapter);
823
824 priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
825 mwifiex_disable_auto_ds(priv);
826 mwifiex_init_shutdown_fw(priv, MWIFIEX_FUNC_SHUTDOWN);
827 }
828
829 mwifiex_remove_card(adapter);
830}
831
832/*
833 * SDIO suspend.
834 *
835 * Kernel needs to suspend all functions separately. Therefore all
836 * registered functions must have drivers with suspend and resume
837 * methods. Failing that the kernel simply removes the whole card.
838 *
839 * If already not suspended, this function allocates and sends a host
840 * sleep activate request to the firmware and turns off the traffic.
841 */
842static int mwifiex_sdio_suspend(struct device *dev)
843{
844 struct sdio_func *func = dev_to_sdio_func(dev);
845 struct sdio_mmc_card *card;
846 struct mwifiex_adapter *adapter;
847 mmc_pm_flag_t pm_flag = 0;
848 int ret = 0;
849
850 pm_flag = sdio_get_host_pm_caps(func);
851 pr_debug("cmd: %s: suspend: PM flag = 0x%x\n",
852 sdio_func_id(func), pm_flag);
853 if (!(pm_flag & MMC_PM_KEEP_POWER)) {
854 dev_err(dev, "%s: cannot remain alive while host is"
855 " suspended\n", sdio_func_id(func));
856 return -ENOSYS;
857 }
858
859 card = sdio_get_drvdata(func);
860 if (!card) {
861 dev_err(dev, "suspend: invalid card\n");
862 return 0;
863 }
864
865 /* Might still be loading firmware */
866 wait_for_completion(&card->fw_done);
867
868 adapter = card->adapter;
869 if (!adapter) {
870 dev_err(dev, "adapter is not valid\n");
871 return 0;
872 }
873
874 if (!adapter->is_up)
875 return -EBUSY;
876
877 mwifiex_enable_wake(adapter);
878
879 /* Enable the Host Sleep */
880 if (!mwifiex_enable_hs(adapter)) {
881 mwifiex_dbg(adapter, ERROR,
882 "cmd: failed to suspend\n");
883 clear_bit(MWIFIEX_IS_HS_ENABLING, &adapter->work_flags);
884 mwifiex_disable_wake(adapter);
885 return -EFAULT;
886 }
887
888 mwifiex_dbg(adapter, INFO,
889 "cmd: suspend with MMC_PM_KEEP_POWER\n");
890 ret = sdio_set_host_pm_flags(func, MMC_PM_KEEP_POWER);
891
892 /* Indicate device suspended */
893 set_bit(MWIFIEX_IS_SUSPENDED, &adapter->work_flags);
894 clear_bit(MWIFIEX_IS_HS_ENABLING, &adapter->work_flags);
895
896 return ret;
897}
898
899static void mwifiex_sdio_coredump(struct device *dev)
900{
901 struct sdio_func *func = dev_to_sdio_func(dev);
902 struct sdio_mmc_card *card;
903
904 card = sdio_get_drvdata(func);
905 if (!test_and_set_bit(MWIFIEX_IFACE_WORK_DEVICE_DUMP,
906 &card->work_flags))
907 schedule_work(&card->work);
908}
909
910/* WLAN IDs */
911static const struct sdio_device_id mwifiex_ids[] = {
912 {SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8786_WLAN),
913 .driver_data = (unsigned long) &mwifiex_sdio_sd8786},
914 {SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8787_WLAN),
915 .driver_data = (unsigned long) &mwifiex_sdio_sd8787},
916 {SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8797_WLAN),
917 .driver_data = (unsigned long) &mwifiex_sdio_sd8797},
918 {SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8897_WLAN),
919 .driver_data = (unsigned long) &mwifiex_sdio_sd8897},
920 {SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8887_WLAN),
921 .driver_data = (unsigned long)&mwifiex_sdio_sd8887},
922 {SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8801_WLAN),
923 .driver_data = (unsigned long)&mwifiex_sdio_sd8801},
924 {SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8977_WLAN),
925 .driver_data = (unsigned long)&mwifiex_sdio_sd8977},
926 {SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8987_WLAN),
927 .driver_data = (unsigned long)&mwifiex_sdio_sd8987},
928 {SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8997_WLAN),
929 .driver_data = (unsigned long)&mwifiex_sdio_sd8997},
930 {},
931};
932
933MODULE_DEVICE_TABLE(sdio, mwifiex_ids);
934
935static const struct dev_pm_ops mwifiex_sdio_pm_ops = {
936 .suspend = mwifiex_sdio_suspend,
937 .resume = mwifiex_sdio_resume,
938};
939
940static struct sdio_driver mwifiex_sdio = {
941 .name = "mwifiex_sdio",
942 .id_table = mwifiex_ids,
943 .probe = mwifiex_sdio_probe,
944 .remove = mwifiex_sdio_remove,
945 .drv = {
946 .owner = THIS_MODULE,
947 .coredump = mwifiex_sdio_coredump,
948 .pm = &mwifiex_sdio_pm_ops,
949 }
950};
951
952/*
953 * This function wakes up the card.
954 *
955 * A host power up command is written to the card configuration
956 * register to wake up the card.
957 */
958static int mwifiex_pm_wakeup_card(struct mwifiex_adapter *adapter)
959{
960 mwifiex_dbg(adapter, EVENT,
961 "event: wakeup device...\n");
962
963 return mwifiex_write_reg(adapter, CONFIGURATION_REG, HOST_POWER_UP);
964}
965
966/*
967 * This function is called after the card has woken up.
968 *
969 * The card configuration register is reset.
970 */
971static int mwifiex_pm_wakeup_card_complete(struct mwifiex_adapter *adapter)
972{
973 mwifiex_dbg(adapter, EVENT,
974 "cmd: wakeup device completed\n");
975
976 return mwifiex_write_reg(adapter, CONFIGURATION_REG, 0);
977}
978
979static int mwifiex_sdio_dnld_fw(struct mwifiex_adapter *adapter,
980 struct mwifiex_fw_image *fw)
981{
982 struct sdio_mmc_card *card = adapter->card;
983 int ret;
984
985 sdio_claim_host(card->func);
986 ret = mwifiex_dnld_fw(adapter, fw);
987 sdio_release_host(card->func);
988
989 return ret;
990}
991
992/*
993 * This function is used to initialize IO ports for the
994 * chipsets supporting SDIO new mode eg SD8897.
995 */
996static int mwifiex_init_sdio_new_mode(struct mwifiex_adapter *adapter)
997{
998 u8 reg;
999 struct sdio_mmc_card *card = adapter->card;
1000
1001 adapter->ioport = MEM_PORT;
1002
1003 /* enable sdio new mode */
1004 if (mwifiex_read_reg(adapter, card->reg->card_cfg_2_1_reg, ®))
1005 return -1;
1006 if (mwifiex_write_reg(adapter, card->reg->card_cfg_2_1_reg,
1007 reg | CMD53_NEW_MODE))
1008 return -1;
1009
1010 /* Configure cmd port and enable reading rx length from the register */
1011 if (mwifiex_read_reg(adapter, card->reg->cmd_cfg_0, ®))
1012 return -1;
1013 if (mwifiex_write_reg(adapter, card->reg->cmd_cfg_0,
1014 reg | CMD_PORT_RD_LEN_EN))
1015 return -1;
1016
1017 /* Enable Dnld/Upld ready auto reset for cmd port after cmd53 is
1018 * completed
1019 */
1020 if (mwifiex_read_reg(adapter, card->reg->cmd_cfg_1, ®))
1021 return -1;
1022 if (mwifiex_write_reg(adapter, card->reg->cmd_cfg_1,
1023 reg | CMD_PORT_AUTO_EN))
1024 return -1;
1025
1026 return 0;
1027}
1028
1029/* This function initializes the IO ports.
1030 *
1031 * The following operations are performed -
1032 * - Read the IO ports (0, 1 and 2)
1033 * - Set host interrupt Reset-To-Read to clear
1034 * - Set auto re-enable interrupt
1035 */
1036static int mwifiex_init_sdio_ioport(struct mwifiex_adapter *adapter)
1037{
1038 u8 reg;
1039 struct sdio_mmc_card *card = adapter->card;
1040
1041 adapter->ioport = 0;
1042
1043 if (card->supports_sdio_new_mode) {
1044 if (mwifiex_init_sdio_new_mode(adapter))
1045 return -1;
1046 goto cont;
1047 }
1048
1049 /* Read the IO port */
1050 if (!mwifiex_read_reg(adapter, card->reg->io_port_0_reg, ®))
1051 adapter->ioport |= (reg & 0xff);
1052 else
1053 return -1;
1054
1055 if (!mwifiex_read_reg(adapter, card->reg->io_port_1_reg, ®))
1056 adapter->ioport |= ((reg & 0xff) << 8);
1057 else
1058 return -1;
1059
1060 if (!mwifiex_read_reg(adapter, card->reg->io_port_2_reg, ®))
1061 adapter->ioport |= ((reg & 0xff) << 16);
1062 else
1063 return -1;
1064cont:
1065 mwifiex_dbg(adapter, INFO,
1066 "info: SDIO FUNC1 IO port: %#x\n", adapter->ioport);
1067
1068 /* Set Host interrupt reset to read to clear */
1069 if (!mwifiex_read_reg(adapter, card->reg->host_int_rsr_reg, ®))
1070 mwifiex_write_reg(adapter, card->reg->host_int_rsr_reg,
1071 reg | card->reg->sdio_int_mask);
1072 else
1073 return -1;
1074
1075 /* Dnld/Upld ready set to auto reset */
1076 if (!mwifiex_read_reg(adapter, card->reg->card_misc_cfg_reg, ®))
1077 mwifiex_write_reg(adapter, card->reg->card_misc_cfg_reg,
1078 reg | AUTO_RE_ENABLE_INT);
1079 else
1080 return -1;
1081
1082 return 0;
1083}
1084
1085/*
1086 * This function sends data to the card.
1087 */
1088static int mwifiex_write_data_to_card(struct mwifiex_adapter *adapter,
1089 u8 *payload, u32 pkt_len, u32 port)
1090{
1091 u32 i = 0;
1092 int ret;
1093
1094 do {
1095 ret = mwifiex_write_data_sync(adapter, payload, pkt_len, port);
1096 if (ret) {
1097 i++;
1098 mwifiex_dbg(adapter, ERROR,
1099 "host_to_card, write iomem\t"
1100 "(%d) failed: %d\n", i, ret);
1101 if (mwifiex_write_reg(adapter, CONFIGURATION_REG, 0x04))
1102 mwifiex_dbg(adapter, ERROR,
1103 "write CFG reg failed\n");
1104
1105 ret = -1;
1106 if (i > MAX_WRITE_IOMEM_RETRY)
1107 return ret;
1108 }
1109 } while (ret == -1);
1110
1111 return ret;
1112}
1113
1114/*
1115 * This function gets the read port.
1116 *
1117 * If control port bit is set in MP read bitmap, the control port
1118 * is returned, otherwise the current read port is returned and
1119 * the value is increased (provided it does not reach the maximum
1120 * limit, in which case it is reset to 1)
1121 */
1122static int mwifiex_get_rd_port(struct mwifiex_adapter *adapter, u8 *port)
1123{
1124 struct sdio_mmc_card *card = adapter->card;
1125 const struct mwifiex_sdio_card_reg *reg = card->reg;
1126 u32 rd_bitmap = card->mp_rd_bitmap;
1127
1128 mwifiex_dbg(adapter, DATA,
1129 "data: mp_rd_bitmap=0x%08x\n", rd_bitmap);
1130
1131 if (card->supports_sdio_new_mode) {
1132 if (!(rd_bitmap & reg->data_port_mask))
1133 return -1;
1134 } else {
1135 if (!(rd_bitmap & (CTRL_PORT_MASK | reg->data_port_mask)))
1136 return -1;
1137 }
1138
1139 if ((card->has_control_mask) &&
1140 (card->mp_rd_bitmap & CTRL_PORT_MASK)) {
1141 card->mp_rd_bitmap &= (u32) (~CTRL_PORT_MASK);
1142 *port = CTRL_PORT;
1143 mwifiex_dbg(adapter, DATA,
1144 "data: port=%d mp_rd_bitmap=0x%08x\n",
1145 *port, card->mp_rd_bitmap);
1146 return 0;
1147 }
1148
1149 if (!(card->mp_rd_bitmap & (1 << card->curr_rd_port)))
1150 return -1;
1151
1152 /* We are now handling the SDIO data ports */
1153 card->mp_rd_bitmap &= (u32)(~(1 << card->curr_rd_port));
1154 *port = card->curr_rd_port;
1155
1156 if (++card->curr_rd_port == card->max_ports)
1157 card->curr_rd_port = reg->start_rd_port;
1158
1159 mwifiex_dbg(adapter, DATA,
1160 "data: port=%d mp_rd_bitmap=0x%08x -> 0x%08x\n",
1161 *port, rd_bitmap, card->mp_rd_bitmap);
1162
1163 return 0;
1164}
1165
1166/*
1167 * This function gets the write port for data.
1168 *
1169 * The current write port is returned if available and the value is
1170 * increased (provided it does not reach the maximum limit, in which
1171 * case it is reset to 1)
1172 */
1173static int mwifiex_get_wr_port_data(struct mwifiex_adapter *adapter, u32 *port)
1174{
1175 struct sdio_mmc_card *card = adapter->card;
1176 const struct mwifiex_sdio_card_reg *reg = card->reg;
1177 u32 wr_bitmap = card->mp_wr_bitmap;
1178
1179 mwifiex_dbg(adapter, DATA,
1180 "data: mp_wr_bitmap=0x%08x\n", wr_bitmap);
1181
1182 if (!(wr_bitmap & card->mp_data_port_mask)) {
1183 adapter->data_sent = true;
1184 return -EBUSY;
1185 }
1186
1187 if (card->mp_wr_bitmap & (1 << card->curr_wr_port)) {
1188 card->mp_wr_bitmap &= (u32) (~(1 << card->curr_wr_port));
1189 *port = card->curr_wr_port;
1190 if (++card->curr_wr_port == card->mp_end_port)
1191 card->curr_wr_port = reg->start_wr_port;
1192 } else {
1193 adapter->data_sent = true;
1194 return -EBUSY;
1195 }
1196
1197 if ((card->has_control_mask) && (*port == CTRL_PORT)) {
1198 mwifiex_dbg(adapter, ERROR,
1199 "invalid data port=%d cur port=%d mp_wr_bitmap=0x%08x -> 0x%08x\n",
1200 *port, card->curr_wr_port, wr_bitmap,
1201 card->mp_wr_bitmap);
1202 return -1;
1203 }
1204
1205 mwifiex_dbg(adapter, DATA,
1206 "data: port=%d mp_wr_bitmap=0x%08x -> 0x%08x\n",
1207 *port, wr_bitmap, card->mp_wr_bitmap);
1208
1209 return 0;
1210}
1211
1212/*
1213 * This function polls the card status.
1214 */
1215static int
1216mwifiex_sdio_poll_card_status(struct mwifiex_adapter *adapter, u8 bits)
1217{
1218 struct sdio_mmc_card *card = adapter->card;
1219 u32 tries;
1220 u8 cs;
1221
1222 for (tries = 0; tries < MAX_POLL_TRIES; tries++) {
1223 if (mwifiex_read_reg(adapter, card->reg->poll_reg, &cs))
1224 break;
1225 else if ((cs & bits) == bits)
1226 return 0;
1227
1228 usleep_range(10, 20);
1229 }
1230
1231 mwifiex_dbg(adapter, ERROR,
1232 "poll card status failed, tries = %d\n", tries);
1233
1234 return -1;
1235}
1236
1237/*
1238 * This function disables the host interrupt.
1239 *
1240 * The host interrupt mask is read, the disable bit is reset and
1241 * written back to the card host interrupt mask register.
1242 */
1243static void mwifiex_sdio_disable_host_int(struct mwifiex_adapter *adapter)
1244{
1245 struct sdio_mmc_card *card = adapter->card;
1246 struct sdio_func *func = card->func;
1247
1248 sdio_claim_host(func);
1249 mwifiex_write_reg_locked(func, card->reg->host_int_mask_reg, 0);
1250 sdio_release_irq(func);
1251 sdio_release_host(func);
1252}
1253
1254/*
1255 * This function reads the interrupt status from card.
1256 */
1257static void mwifiex_interrupt_status(struct mwifiex_adapter *adapter)
1258{
1259 struct sdio_mmc_card *card = adapter->card;
1260 u8 sdio_ireg;
1261 unsigned long flags;
1262
1263 if (mwifiex_read_data_sync(adapter, card->mp_regs,
1264 card->reg->max_mp_regs,
1265 REG_PORT | MWIFIEX_SDIO_BYTE_MODE_MASK, 0)) {
1266 mwifiex_dbg(adapter, ERROR, "read mp_regs failed\n");
1267 return;
1268 }
1269
1270 sdio_ireg = card->mp_regs[card->reg->host_int_status_reg];
1271 if (sdio_ireg) {
1272 /*
1273 * DN_LD_HOST_INT_STATUS and/or UP_LD_HOST_INT_STATUS
1274 * For SDIO new mode CMD port interrupts
1275 * DN_LD_CMD_PORT_HOST_INT_STATUS and/or
1276 * UP_LD_CMD_PORT_HOST_INT_STATUS
1277 * Clear the interrupt status register
1278 */
1279 mwifiex_dbg(adapter, INTR,
1280 "int: sdio_ireg = %#x\n", sdio_ireg);
1281 spin_lock_irqsave(&adapter->int_lock, flags);
1282 adapter->int_status |= sdio_ireg;
1283 spin_unlock_irqrestore(&adapter->int_lock, flags);
1284 }
1285}
1286
1287/*
1288 * SDIO interrupt handler.
1289 *
1290 * This function reads the interrupt status from firmware and handles
1291 * the interrupt in current thread (ksdioirqd) right away.
1292 */
1293static void
1294mwifiex_sdio_interrupt(struct sdio_func *func)
1295{
1296 struct mwifiex_adapter *adapter;
1297 struct sdio_mmc_card *card;
1298
1299 card = sdio_get_drvdata(func);
1300 if (!card || !card->adapter) {
1301 pr_err("int: func=%p card=%p adapter=%p\n",
1302 func, card, card ? card->adapter : NULL);
1303 return;
1304 }
1305 adapter = card->adapter;
1306
1307 if (!adapter->pps_uapsd_mode && adapter->ps_state == PS_STATE_SLEEP)
1308 adapter->ps_state = PS_STATE_AWAKE;
1309
1310 mwifiex_interrupt_status(adapter);
1311 mwifiex_main_process(adapter);
1312}
1313
1314/*
1315 * This function enables the host interrupt.
1316 *
1317 * The host interrupt enable mask is written to the card
1318 * host interrupt mask register.
1319 */
1320static int mwifiex_sdio_enable_host_int(struct mwifiex_adapter *adapter)
1321{
1322 struct sdio_mmc_card *card = adapter->card;
1323 struct sdio_func *func = card->func;
1324 int ret;
1325
1326 sdio_claim_host(func);
1327
1328 /* Request the SDIO IRQ */
1329 ret = sdio_claim_irq(func, mwifiex_sdio_interrupt);
1330 if (ret) {
1331 mwifiex_dbg(adapter, ERROR,
1332 "claim irq failed: ret=%d\n", ret);
1333 goto out;
1334 }
1335
1336 /* Simply write the mask to the register */
1337 ret = mwifiex_write_reg_locked(func, card->reg->host_int_mask_reg,
1338 card->reg->host_int_enable);
1339 if (ret) {
1340 mwifiex_dbg(adapter, ERROR,
1341 "enable host interrupt failed\n");
1342 sdio_release_irq(func);
1343 }
1344
1345out:
1346 sdio_release_host(func);
1347 return ret;
1348}
1349
1350/*
1351 * This function sends a data buffer to the card.
1352 */
1353static int mwifiex_sdio_card_to_host(struct mwifiex_adapter *adapter,
1354 u32 *type, u8 *buffer,
1355 u32 npayload, u32 ioport)
1356{
1357 int ret;
1358 u32 nb;
1359
1360 if (!buffer) {
1361 mwifiex_dbg(adapter, ERROR,
1362 "%s: buffer is NULL\n", __func__);
1363 return -1;
1364 }
1365
1366 ret = mwifiex_read_data_sync(adapter, buffer, npayload, ioport, 1);
1367
1368 if (ret) {
1369 mwifiex_dbg(adapter, ERROR,
1370 "%s: read iomem failed: %d\n", __func__,
1371 ret);
1372 return -1;
1373 }
1374
1375 nb = get_unaligned_le16((buffer));
1376 if (nb > npayload) {
1377 mwifiex_dbg(adapter, ERROR,
1378 "%s: invalid packet, nb=%d npayload=%d\n",
1379 __func__, nb, npayload);
1380 return -1;
1381 }
1382
1383 *type = get_unaligned_le16((buffer + 2));
1384
1385 return ret;
1386}
1387
1388/*
1389 * This function downloads the firmware to the card.
1390 *
1391 * Firmware is downloaded to the card in blocks. Every block download
1392 * is tested for CRC errors, and retried a number of times before
1393 * returning failure.
1394 */
1395static int mwifiex_prog_fw_w_helper(struct mwifiex_adapter *adapter,
1396 struct mwifiex_fw_image *fw)
1397{
1398 struct sdio_mmc_card *card = adapter->card;
1399 const struct mwifiex_sdio_card_reg *reg = card->reg;
1400 int ret;
1401 u8 *firmware = fw->fw_buf;
1402 u32 firmware_len = fw->fw_len;
1403 u32 offset = 0;
1404 u8 base0, base1;
1405 u8 *fwbuf;
1406 u16 len = 0;
1407 u32 txlen, tx_blocks = 0, tries;
1408 u32 i = 0;
1409
1410 if (!firmware_len) {
1411 mwifiex_dbg(adapter, ERROR,
1412 "firmware image not found! Terminating download\n");
1413 return -1;
1414 }
1415
1416 mwifiex_dbg(adapter, INFO,
1417 "info: downloading FW image (%d bytes)\n",
1418 firmware_len);
1419
1420 /* Assume that the allocated buffer is 8-byte aligned */
1421 fwbuf = kzalloc(MWIFIEX_UPLD_SIZE, GFP_KERNEL);
1422 if (!fwbuf)
1423 return -ENOMEM;
1424
1425 sdio_claim_host(card->func);
1426
1427 /* Perform firmware data transfer */
1428 do {
1429 /* The host polls for the DN_LD_CARD_RDY and CARD_IO_READY
1430 bits */
1431 ret = mwifiex_sdio_poll_card_status(adapter, CARD_IO_READY |
1432 DN_LD_CARD_RDY);
1433 if (ret) {
1434 mwifiex_dbg(adapter, ERROR,
1435 "FW download with helper:\t"
1436 "poll status timeout @ %d\n", offset);
1437 goto done;
1438 }
1439
1440 /* More data? */
1441 if (offset >= firmware_len)
1442 break;
1443
1444 for (tries = 0; tries < MAX_POLL_TRIES; tries++) {
1445 ret = mwifiex_read_reg(adapter, reg->base_0_reg,
1446 &base0);
1447 if (ret) {
1448 mwifiex_dbg(adapter, ERROR,
1449 "dev BASE0 register read failed:\t"
1450 "base0=%#04X(%d). Terminating dnld\n",
1451 base0, base0);
1452 goto done;
1453 }
1454 ret = mwifiex_read_reg(adapter, reg->base_1_reg,
1455 &base1);
1456 if (ret) {
1457 mwifiex_dbg(adapter, ERROR,
1458 "dev BASE1 register read failed:\t"
1459 "base1=%#04X(%d). Terminating dnld\n",
1460 base1, base1);
1461 goto done;
1462 }
1463 len = (u16) (((base1 & 0xff) << 8) | (base0 & 0xff));
1464
1465 if (len)
1466 break;
1467
1468 usleep_range(10, 20);
1469 }
1470
1471 if (!len) {
1472 break;
1473 } else if (len > MWIFIEX_UPLD_SIZE) {
1474 mwifiex_dbg(adapter, ERROR,
1475 "FW dnld failed @ %d, invalid length %d\n",
1476 offset, len);
1477 ret = -1;
1478 goto done;
1479 }
1480
1481 txlen = len;
1482
1483 if (len & BIT(0)) {
1484 i++;
1485 if (i > MAX_WRITE_IOMEM_RETRY) {
1486 mwifiex_dbg(adapter, ERROR,
1487 "FW dnld failed @ %d, over max retry\n",
1488 offset);
1489 ret = -1;
1490 goto done;
1491 }
1492 mwifiex_dbg(adapter, ERROR,
1493 "CRC indicated by the helper:\t"
1494 "len = 0x%04X, txlen = %d\n", len, txlen);
1495 len &= ~BIT(0);
1496 /* Setting this to 0 to resend from same offset */
1497 txlen = 0;
1498 } else {
1499 i = 0;
1500
1501 /* Set blocksize to transfer - checking for last
1502 block */
1503 if (firmware_len - offset < txlen)
1504 txlen = firmware_len - offset;
1505
1506 tx_blocks = (txlen + MWIFIEX_SDIO_BLOCK_SIZE - 1)
1507 / MWIFIEX_SDIO_BLOCK_SIZE;
1508
1509 /* Copy payload to buffer */
1510 memmove(fwbuf, &firmware[offset], txlen);
1511 }
1512
1513 ret = mwifiex_write_data_sync(adapter, fwbuf, tx_blocks *
1514 MWIFIEX_SDIO_BLOCK_SIZE,
1515 adapter->ioport);
1516 if (ret) {
1517 mwifiex_dbg(adapter, ERROR,
1518 "FW download, write iomem (%d) failed @ %d\n",
1519 i, offset);
1520 if (mwifiex_write_reg(adapter, CONFIGURATION_REG, 0x04))
1521 mwifiex_dbg(adapter, ERROR,
1522 "write CFG reg failed\n");
1523
1524 ret = -1;
1525 goto done;
1526 }
1527
1528 offset += txlen;
1529 } while (true);
1530
1531 mwifiex_dbg(adapter, MSG,
1532 "info: FW download over, size %d bytes\n", offset);
1533
1534 ret = 0;
1535done:
1536 sdio_release_host(card->func);
1537 kfree(fwbuf);
1538 return ret;
1539}
1540
1541/*
1542 * This function decode sdio aggreation pkt.
1543 *
1544 * Based on the the data block size and pkt_len,
1545 * skb data will be decoded to few packets.
1546 */
1547static void mwifiex_deaggr_sdio_pkt(struct mwifiex_adapter *adapter,
1548 struct sk_buff *skb)
1549{
1550 u32 total_pkt_len, pkt_len;
1551 struct sk_buff *skb_deaggr;
1552 u16 blk_size;
1553 u8 blk_num;
1554 u8 *data;
1555
1556 data = skb->data;
1557 total_pkt_len = skb->len;
1558
1559 while (total_pkt_len >= (SDIO_HEADER_OFFSET + adapter->intf_hdr_len)) {
1560 if (total_pkt_len < adapter->sdio_rx_block_size)
1561 break;
1562 blk_num = *(data + BLOCK_NUMBER_OFFSET);
1563 blk_size = adapter->sdio_rx_block_size * blk_num;
1564 if (blk_size > total_pkt_len) {
1565 mwifiex_dbg(adapter, ERROR,
1566 "%s: error in blk_size,\t"
1567 "blk_num=%d, blk_size=%d, total_pkt_len=%d\n",
1568 __func__, blk_num, blk_size, total_pkt_len);
1569 break;
1570 }
1571 pkt_len = get_unaligned_le16((data +
1572 SDIO_HEADER_OFFSET));
1573 if ((pkt_len + SDIO_HEADER_OFFSET) > blk_size) {
1574 mwifiex_dbg(adapter, ERROR,
1575 "%s: error in pkt_len,\t"
1576 "pkt_len=%d, blk_size=%d\n",
1577 __func__, pkt_len, blk_size);
1578 break;
1579 }
1580
1581 skb_deaggr = mwifiex_alloc_dma_align_buf(pkt_len, GFP_KERNEL);
1582 if (!skb_deaggr)
1583 break;
1584 skb_put(skb_deaggr, pkt_len);
1585 memcpy(skb_deaggr->data, data + SDIO_HEADER_OFFSET, pkt_len);
1586 skb_pull(skb_deaggr, adapter->intf_hdr_len);
1587
1588 mwifiex_handle_rx_packet(adapter, skb_deaggr);
1589 data += blk_size;
1590 total_pkt_len -= blk_size;
1591 }
1592}
1593
1594/*
1595 * This function decodes a received packet.
1596 *
1597 * Based on the type, the packet is treated as either a data, or
1598 * a command response, or an event, and the correct handler
1599 * function is invoked.
1600 */
1601static int mwifiex_decode_rx_packet(struct mwifiex_adapter *adapter,
1602 struct sk_buff *skb, u32 upld_typ)
1603{
1604 u8 *cmd_buf;
1605 u16 pkt_len;
1606 struct mwifiex_rxinfo *rx_info;
1607
1608 pkt_len = get_unaligned_le16(skb->data);
1609
1610 if (upld_typ != MWIFIEX_TYPE_AGGR_DATA) {
1611 skb_trim(skb, pkt_len);
1612 skb_pull(skb, adapter->intf_hdr_len);
1613 }
1614
1615 switch (upld_typ) {
1616 case MWIFIEX_TYPE_AGGR_DATA:
1617 mwifiex_dbg(adapter, INFO,
1618 "info: --- Rx: Aggr Data packet ---\n");
1619 rx_info = MWIFIEX_SKB_RXCB(skb);
1620 rx_info->buf_type = MWIFIEX_TYPE_AGGR_DATA;
1621 if (adapter->rx_work_enabled) {
1622 skb_queue_tail(&adapter->rx_data_q, skb);
1623 atomic_inc(&adapter->rx_pending);
1624 adapter->data_received = true;
1625 } else {
1626 mwifiex_deaggr_sdio_pkt(adapter, skb);
1627 dev_kfree_skb_any(skb);
1628 }
1629 break;
1630
1631 case MWIFIEX_TYPE_DATA:
1632 mwifiex_dbg(adapter, DATA,
1633 "info: --- Rx: Data packet ---\n");
1634 if (adapter->rx_work_enabled) {
1635 skb_queue_tail(&adapter->rx_data_q, skb);
1636 adapter->data_received = true;
1637 atomic_inc(&adapter->rx_pending);
1638 } else {
1639 mwifiex_handle_rx_packet(adapter, skb);
1640 }
1641 break;
1642
1643 case MWIFIEX_TYPE_CMD:
1644 mwifiex_dbg(adapter, CMD,
1645 "info: --- Rx: Cmd Response ---\n");
1646 /* take care of curr_cmd = NULL case */
1647 if (!adapter->curr_cmd) {
1648 cmd_buf = adapter->upld_buf;
1649
1650 if (adapter->ps_state == PS_STATE_SLEEP_CFM)
1651 mwifiex_process_sleep_confirm_resp(adapter,
1652 skb->data,
1653 skb->len);
1654
1655 memcpy(cmd_buf, skb->data,
1656 min_t(u32, MWIFIEX_SIZE_OF_CMD_BUFFER,
1657 skb->len));
1658
1659 dev_kfree_skb_any(skb);
1660 } else {
1661 adapter->cmd_resp_received = true;
1662 adapter->curr_cmd->resp_skb = skb;
1663 }
1664 break;
1665
1666 case MWIFIEX_TYPE_EVENT:
1667 mwifiex_dbg(adapter, EVENT,
1668 "info: --- Rx: Event ---\n");
1669 adapter->event_cause = get_unaligned_le32(skb->data);
1670
1671 if ((skb->len > 0) && (skb->len < MAX_EVENT_SIZE))
1672 memcpy(adapter->event_body,
1673 skb->data + MWIFIEX_EVENT_HEADER_LEN,
1674 skb->len);
1675
1676 /* event cause has been saved to adapter->event_cause */
1677 adapter->event_received = true;
1678 adapter->event_skb = skb;
1679
1680 break;
1681
1682 default:
1683 mwifiex_dbg(adapter, ERROR,
1684 "unknown upload type %#x\n", upld_typ);
1685 dev_kfree_skb_any(skb);
1686 break;
1687 }
1688
1689 return 0;
1690}
1691
1692/*
1693 * This function transfers received packets from card to driver, performing
1694 * aggregation if required.
1695 *
1696 * For data received on control port, or if aggregation is disabled, the
1697 * received buffers are uploaded as separate packets. However, if aggregation
1698 * is enabled and required, the buffers are copied onto an aggregation buffer,
1699 * provided there is space left, processed and finally uploaded.
1700 */
1701static int mwifiex_sdio_card_to_host_mp_aggr(struct mwifiex_adapter *adapter,
1702 u16 rx_len, u8 port)
1703{
1704 struct sdio_mmc_card *card = adapter->card;
1705 s32 f_do_rx_aggr = 0;
1706 s32 f_do_rx_cur = 0;
1707 s32 f_aggr_cur = 0;
1708 s32 f_post_aggr_cur = 0;
1709 struct sk_buff *skb_deaggr;
1710 struct sk_buff *skb = NULL;
1711 u32 pkt_len, pkt_type, mport, pind;
1712 u8 *curr_ptr;
1713
1714 if ((card->has_control_mask) && (port == CTRL_PORT)) {
1715 /* Read the command Resp without aggr */
1716 mwifiex_dbg(adapter, CMD,
1717 "info: %s: no aggregation for cmd\t"
1718 "response\n", __func__);
1719
1720 f_do_rx_cur = 1;
1721 goto rx_curr_single;
1722 }
1723
1724 if (!card->mpa_rx.enabled) {
1725 mwifiex_dbg(adapter, WARN,
1726 "info: %s: rx aggregation disabled\n",
1727 __func__);
1728
1729 f_do_rx_cur = 1;
1730 goto rx_curr_single;
1731 }
1732
1733 if ((!card->has_control_mask && (card->mp_rd_bitmap &
1734 card->reg->data_port_mask)) ||
1735 (card->has_control_mask && (card->mp_rd_bitmap &
1736 (~((u32) CTRL_PORT_MASK))))) {
1737 /* Some more data RX pending */
1738 mwifiex_dbg(adapter, INFO,
1739 "info: %s: not last packet\n", __func__);
1740
1741 if (MP_RX_AGGR_IN_PROGRESS(card)) {
1742 if (MP_RX_AGGR_BUF_HAS_ROOM(card, rx_len)) {
1743 f_aggr_cur = 1;
1744 } else {
1745 /* No room in Aggr buf, do rx aggr now */
1746 f_do_rx_aggr = 1;
1747 f_post_aggr_cur = 1;
1748 }
1749 } else {
1750 /* Rx aggr not in progress */
1751 f_aggr_cur = 1;
1752 }
1753
1754 } else {
1755 /* No more data RX pending */
1756 mwifiex_dbg(adapter, INFO,
1757 "info: %s: last packet\n", __func__);
1758
1759 if (MP_RX_AGGR_IN_PROGRESS(card)) {
1760 f_do_rx_aggr = 1;
1761 if (MP_RX_AGGR_BUF_HAS_ROOM(card, rx_len))
1762 f_aggr_cur = 1;
1763 else
1764 /* No room in Aggr buf, do rx aggr now */
1765 f_do_rx_cur = 1;
1766 } else {
1767 f_do_rx_cur = 1;
1768 }
1769 }
1770
1771 if (f_aggr_cur) {
1772 mwifiex_dbg(adapter, INFO,
1773 "info: current packet aggregation\n");
1774 /* Curr pkt can be aggregated */
1775 mp_rx_aggr_setup(card, rx_len, port);
1776
1777 if (MP_RX_AGGR_PKT_LIMIT_REACHED(card) ||
1778 mp_rx_aggr_port_limit_reached(card)) {
1779 mwifiex_dbg(adapter, INFO,
1780 "info: %s: aggregated packet\t"
1781 "limit reached\n", __func__);
1782 /* No more pkts allowed in Aggr buf, rx it */
1783 f_do_rx_aggr = 1;
1784 }
1785 }
1786
1787 if (f_do_rx_aggr) {
1788 /* do aggr RX now */
1789 mwifiex_dbg(adapter, DATA,
1790 "info: do_rx_aggr: num of packets: %d\n",
1791 card->mpa_rx.pkt_cnt);
1792
1793 if (card->supports_sdio_new_mode) {
1794 int i;
1795 u32 port_count;
1796
1797 for (i = 0, port_count = 0; i < card->max_ports; i++)
1798 if (card->mpa_rx.ports & BIT(i))
1799 port_count++;
1800
1801 /* Reading data from "start_port + 0" to "start_port +
1802 * port_count -1", so decrease the count by 1
1803 */
1804 port_count--;
1805 mport = (adapter->ioport | SDIO_MPA_ADDR_BASE |
1806 (port_count << 8)) + card->mpa_rx.start_port;
1807 } else {
1808 mport = (adapter->ioport | SDIO_MPA_ADDR_BASE |
1809 (card->mpa_rx.ports << 4)) +
1810 card->mpa_rx.start_port;
1811 }
1812
1813 if (card->mpa_rx.pkt_cnt == 1)
1814 mport = adapter->ioport + card->mpa_rx.start_port;
1815
1816 if (mwifiex_read_data_sync(adapter, card->mpa_rx.buf,
1817 card->mpa_rx.buf_len, mport, 1))
1818 goto error;
1819
1820 curr_ptr = card->mpa_rx.buf;
1821
1822 for (pind = 0; pind < card->mpa_rx.pkt_cnt; pind++) {
1823 u32 *len_arr = card->mpa_rx.len_arr;
1824
1825 /* get curr PKT len & type */
1826 pkt_len = get_unaligned_le16(&curr_ptr[0]);
1827 pkt_type = get_unaligned_le16(&curr_ptr[2]);
1828
1829 /* copy pkt to deaggr buf */
1830 skb_deaggr = mwifiex_alloc_dma_align_buf(len_arr[pind],
1831 GFP_KERNEL);
1832 if (!skb_deaggr) {
1833 mwifiex_dbg(adapter, ERROR, "skb allocation failure\t"
1834 "drop pkt len=%d type=%d\n",
1835 pkt_len, pkt_type);
1836 curr_ptr += len_arr[pind];
1837 continue;
1838 }
1839
1840 skb_put(skb_deaggr, len_arr[pind]);
1841
1842 if ((pkt_type == MWIFIEX_TYPE_DATA ||
1843 (pkt_type == MWIFIEX_TYPE_AGGR_DATA &&
1844 adapter->sdio_rx_aggr_enable)) &&
1845 (pkt_len <= len_arr[pind])) {
1846
1847 memcpy(skb_deaggr->data, curr_ptr, pkt_len);
1848
1849 skb_trim(skb_deaggr, pkt_len);
1850
1851 /* Process de-aggr packet */
1852 mwifiex_decode_rx_packet(adapter, skb_deaggr,
1853 pkt_type);
1854 } else {
1855 mwifiex_dbg(adapter, ERROR,
1856 "drop wrong aggr pkt:\t"
1857 "sdio_single_port_rx_aggr=%d\t"
1858 "type=%d len=%d max_len=%d\n",
1859 adapter->sdio_rx_aggr_enable,
1860 pkt_type, pkt_len, len_arr[pind]);
1861 dev_kfree_skb_any(skb_deaggr);
1862 }
1863 curr_ptr += len_arr[pind];
1864 }
1865 MP_RX_AGGR_BUF_RESET(card);
1866 }
1867
1868rx_curr_single:
1869 if (f_do_rx_cur) {
1870 mwifiex_dbg(adapter, INFO, "info: RX: port: %d, rx_len: %d\n",
1871 port, rx_len);
1872
1873 skb = mwifiex_alloc_dma_align_buf(rx_len, GFP_KERNEL);
1874 if (!skb) {
1875 mwifiex_dbg(adapter, ERROR,
1876 "single skb allocated fail,\t"
1877 "drop pkt port=%d len=%d\n", port, rx_len);
1878 if (mwifiex_sdio_card_to_host(adapter, &pkt_type,
1879 card->mpa_rx.buf, rx_len,
1880 adapter->ioport + port))
1881 goto error;
1882 return 0;
1883 }
1884
1885 skb_put(skb, rx_len);
1886
1887 if (mwifiex_sdio_card_to_host(adapter, &pkt_type,
1888 skb->data, skb->len,
1889 adapter->ioport + port))
1890 goto error;
1891 if (!adapter->sdio_rx_aggr_enable &&
1892 pkt_type == MWIFIEX_TYPE_AGGR_DATA) {
1893 mwifiex_dbg(adapter, ERROR, "drop wrong pkt type %d\t"
1894 "current SDIO RX Aggr not enabled\n",
1895 pkt_type);
1896 dev_kfree_skb_any(skb);
1897 return 0;
1898 }
1899
1900 mwifiex_decode_rx_packet(adapter, skb, pkt_type);
1901 }
1902 if (f_post_aggr_cur) {
1903 mwifiex_dbg(adapter, INFO,
1904 "info: current packet aggregation\n");
1905 /* Curr pkt can be aggregated */
1906 mp_rx_aggr_setup(card, rx_len, port);
1907 }
1908
1909 return 0;
1910error:
1911 if (MP_RX_AGGR_IN_PROGRESS(card))
1912 MP_RX_AGGR_BUF_RESET(card);
1913
1914 if (f_do_rx_cur && skb)
1915 /* Single transfer pending. Free curr buff also */
1916 dev_kfree_skb_any(skb);
1917
1918 return -1;
1919}
1920
1921/*
1922 * This function checks the current interrupt status.
1923 *
1924 * The following interrupts are checked and handled by this function -
1925 * - Data sent
1926 * - Command sent
1927 * - Packets received
1928 *
1929 * Since the firmware does not generate download ready interrupt if the
1930 * port updated is command port only, command sent interrupt checking
1931 * should be done manually, and for every SDIO interrupt.
1932 *
1933 * In case of Rx packets received, the packets are uploaded from card to
1934 * host and processed accordingly.
1935 */
1936static int mwifiex_process_int_status(struct mwifiex_adapter *adapter)
1937{
1938 struct sdio_mmc_card *card = adapter->card;
1939 const struct mwifiex_sdio_card_reg *reg = card->reg;
1940 int ret = 0;
1941 u8 sdio_ireg;
1942 struct sk_buff *skb;
1943 u8 port = CTRL_PORT;
1944 u32 len_reg_l, len_reg_u;
1945 u32 rx_blocks;
1946 u16 rx_len;
1947 unsigned long flags;
1948 u32 bitmap;
1949 u8 cr;
1950
1951 spin_lock_irqsave(&adapter->int_lock, flags);
1952 sdio_ireg = adapter->int_status;
1953 adapter->int_status = 0;
1954 spin_unlock_irqrestore(&adapter->int_lock, flags);
1955
1956 if (!sdio_ireg)
1957 return ret;
1958
1959 /* Following interrupt is only for SDIO new mode */
1960 if (sdio_ireg & DN_LD_CMD_PORT_HOST_INT_STATUS && adapter->cmd_sent)
1961 adapter->cmd_sent = false;
1962
1963 /* Following interrupt is only for SDIO new mode */
1964 if (sdio_ireg & UP_LD_CMD_PORT_HOST_INT_STATUS) {
1965 u32 pkt_type;
1966
1967 /* read the len of control packet */
1968 rx_len = card->mp_regs[reg->cmd_rd_len_1] << 8;
1969 rx_len |= (u16)card->mp_regs[reg->cmd_rd_len_0];
1970 rx_blocks = DIV_ROUND_UP(rx_len, MWIFIEX_SDIO_BLOCK_SIZE);
1971 if (rx_len <= adapter->intf_hdr_len ||
1972 (rx_blocks * MWIFIEX_SDIO_BLOCK_SIZE) >
1973 MWIFIEX_RX_DATA_BUF_SIZE)
1974 return -1;
1975 rx_len = (u16) (rx_blocks * MWIFIEX_SDIO_BLOCK_SIZE);
1976 mwifiex_dbg(adapter, INFO, "info: rx_len = %d\n", rx_len);
1977
1978 skb = mwifiex_alloc_dma_align_buf(rx_len, GFP_KERNEL);
1979 if (!skb)
1980 return -1;
1981
1982 skb_put(skb, rx_len);
1983
1984 if (mwifiex_sdio_card_to_host(adapter, &pkt_type, skb->data,
1985 skb->len, adapter->ioport |
1986 CMD_PORT_SLCT)) {
1987 mwifiex_dbg(adapter, ERROR,
1988 "%s: failed to card_to_host", __func__);
1989 dev_kfree_skb_any(skb);
1990 goto term_cmd;
1991 }
1992
1993 if ((pkt_type != MWIFIEX_TYPE_CMD) &&
1994 (pkt_type != MWIFIEX_TYPE_EVENT))
1995 mwifiex_dbg(adapter, ERROR,
1996 "%s:Received wrong packet on cmd port",
1997 __func__);
1998
1999 mwifiex_decode_rx_packet(adapter, skb, pkt_type);
2000 }
2001
2002 if (sdio_ireg & DN_LD_HOST_INT_STATUS) {
2003 bitmap = (u32) card->mp_regs[reg->wr_bitmap_l];
2004 bitmap |= ((u32) card->mp_regs[reg->wr_bitmap_u]) << 8;
2005 if (card->supports_sdio_new_mode) {
2006 bitmap |=
2007 ((u32) card->mp_regs[reg->wr_bitmap_1l]) << 16;
2008 bitmap |=
2009 ((u32) card->mp_regs[reg->wr_bitmap_1u]) << 24;
2010 }
2011 card->mp_wr_bitmap = bitmap;
2012
2013 mwifiex_dbg(adapter, INTR,
2014 "int: DNLD: wr_bitmap=0x%x\n",
2015 card->mp_wr_bitmap);
2016 if (adapter->data_sent &&
2017 (card->mp_wr_bitmap & card->mp_data_port_mask)) {
2018 mwifiex_dbg(adapter, INTR,
2019 "info: <--- Tx DONE Interrupt --->\n");
2020 adapter->data_sent = false;
2021 }
2022 }
2023
2024 /* As firmware will not generate download ready interrupt if the port
2025 updated is command port only, cmd_sent should be done for any SDIO
2026 interrupt. */
2027 if (card->has_control_mask && adapter->cmd_sent) {
2028 /* Check if firmware has attach buffer at command port and
2029 update just that in wr_bit_map. */
2030 card->mp_wr_bitmap |=
2031 (u32) card->mp_regs[reg->wr_bitmap_l] & CTRL_PORT_MASK;
2032 if (card->mp_wr_bitmap & CTRL_PORT_MASK)
2033 adapter->cmd_sent = false;
2034 }
2035
2036 mwifiex_dbg(adapter, INTR, "info: cmd_sent=%d data_sent=%d\n",
2037 adapter->cmd_sent, adapter->data_sent);
2038 if (sdio_ireg & UP_LD_HOST_INT_STATUS) {
2039 bitmap = (u32) card->mp_regs[reg->rd_bitmap_l];
2040 bitmap |= ((u32) card->mp_regs[reg->rd_bitmap_u]) << 8;
2041 if (card->supports_sdio_new_mode) {
2042 bitmap |=
2043 ((u32) card->mp_regs[reg->rd_bitmap_1l]) << 16;
2044 bitmap |=
2045 ((u32) card->mp_regs[reg->rd_bitmap_1u]) << 24;
2046 }
2047 card->mp_rd_bitmap = bitmap;
2048 mwifiex_dbg(adapter, INTR,
2049 "int: UPLD: rd_bitmap=0x%x\n",
2050 card->mp_rd_bitmap);
2051
2052 while (true) {
2053 ret = mwifiex_get_rd_port(adapter, &port);
2054 if (ret) {
2055 mwifiex_dbg(adapter, INFO,
2056 "info: no more rd_port available\n");
2057 break;
2058 }
2059 len_reg_l = reg->rd_len_p0_l + (port << 1);
2060 len_reg_u = reg->rd_len_p0_u + (port << 1);
2061 rx_len = ((u16) card->mp_regs[len_reg_u]) << 8;
2062 rx_len |= (u16) card->mp_regs[len_reg_l];
2063 mwifiex_dbg(adapter, INFO,
2064 "info: RX: port=%d rx_len=%u\n",
2065 port, rx_len);
2066 rx_blocks =
2067 (rx_len + MWIFIEX_SDIO_BLOCK_SIZE -
2068 1) / MWIFIEX_SDIO_BLOCK_SIZE;
2069 if (rx_len <= adapter->intf_hdr_len ||
2070 (card->mpa_rx.enabled &&
2071 ((rx_blocks * MWIFIEX_SDIO_BLOCK_SIZE) >
2072 card->mpa_rx.buf_size))) {
2073 mwifiex_dbg(adapter, ERROR,
2074 "invalid rx_len=%d\n",
2075 rx_len);
2076 return -1;
2077 }
2078
2079 rx_len = (u16) (rx_blocks * MWIFIEX_SDIO_BLOCK_SIZE);
2080 mwifiex_dbg(adapter, INFO, "info: rx_len = %d\n",
2081 rx_len);
2082
2083 if (mwifiex_sdio_card_to_host_mp_aggr(adapter, rx_len,
2084 port)) {
2085 mwifiex_dbg(adapter, ERROR,
2086 "card_to_host_mpa failed: int status=%#x\n",
2087 sdio_ireg);
2088 goto term_cmd;
2089 }
2090 }
2091 }
2092
2093 return 0;
2094
2095term_cmd:
2096 /* terminate cmd */
2097 if (mwifiex_read_reg(adapter, CONFIGURATION_REG, &cr))
2098 mwifiex_dbg(adapter, ERROR, "read CFG reg failed\n");
2099 else
2100 mwifiex_dbg(adapter, INFO,
2101 "info: CFG reg val = %d\n", cr);
2102
2103 if (mwifiex_write_reg(adapter, CONFIGURATION_REG, (cr | 0x04)))
2104 mwifiex_dbg(adapter, ERROR,
2105 "write CFG reg failed\n");
2106 else
2107 mwifiex_dbg(adapter, INFO, "info: write success\n");
2108
2109 if (mwifiex_read_reg(adapter, CONFIGURATION_REG, &cr))
2110 mwifiex_dbg(adapter, ERROR,
2111 "read CFG reg failed\n");
2112 else
2113 mwifiex_dbg(adapter, INFO,
2114 "info: CFG reg val =%x\n", cr);
2115
2116 return -1;
2117}
2118
2119/*
2120 * This function aggregates transmission buffers in driver and downloads
2121 * the aggregated packet to card.
2122 *
2123 * The individual packets are aggregated by copying into an aggregation
2124 * buffer and then downloaded to the card. Previous unsent packets in the
2125 * aggregation buffer are pre-copied first before new packets are added.
2126 * Aggregation is done till there is space left in the aggregation buffer,
2127 * or till new packets are available.
2128 *
2129 * The function will only download the packet to the card when aggregation
2130 * stops, otherwise it will just aggregate the packet in aggregation buffer
2131 * and return.
2132 */
2133static int mwifiex_host_to_card_mp_aggr(struct mwifiex_adapter *adapter,
2134 u8 *payload, u32 pkt_len, u32 port,
2135 u32 next_pkt_len)
2136{
2137 struct sdio_mmc_card *card = adapter->card;
2138 int ret = 0;
2139 s32 f_send_aggr_buf = 0;
2140 s32 f_send_cur_buf = 0;
2141 s32 f_precopy_cur_buf = 0;
2142 s32 f_postcopy_cur_buf = 0;
2143 u32 mport;
2144 int index;
2145
2146 if (!card->mpa_tx.enabled ||
2147 (card->has_control_mask && (port == CTRL_PORT)) ||
2148 (card->supports_sdio_new_mode && (port == CMD_PORT_SLCT))) {
2149 mwifiex_dbg(adapter, WARN,
2150 "info: %s: tx aggregation disabled\n",
2151 __func__);
2152
2153 f_send_cur_buf = 1;
2154 goto tx_curr_single;
2155 }
2156
2157 if (next_pkt_len) {
2158 /* More pkt in TX queue */
2159 mwifiex_dbg(adapter, INFO,
2160 "info: %s: more packets in queue.\n",
2161 __func__);
2162
2163 if (MP_TX_AGGR_IN_PROGRESS(card)) {
2164 if (MP_TX_AGGR_BUF_HAS_ROOM(card, pkt_len)) {
2165 f_precopy_cur_buf = 1;
2166
2167 if (!(card->mp_wr_bitmap &
2168 (1 << card->curr_wr_port)) ||
2169 !MP_TX_AGGR_BUF_HAS_ROOM(
2170 card, pkt_len + next_pkt_len))
2171 f_send_aggr_buf = 1;
2172 } else {
2173 /* No room in Aggr buf, send it */
2174 f_send_aggr_buf = 1;
2175
2176 if (!(card->mp_wr_bitmap &
2177 (1 << card->curr_wr_port)))
2178 f_send_cur_buf = 1;
2179 else
2180 f_postcopy_cur_buf = 1;
2181 }
2182 } else {
2183 if (MP_TX_AGGR_BUF_HAS_ROOM(card, pkt_len) &&
2184 (card->mp_wr_bitmap & (1 << card->curr_wr_port)))
2185 f_precopy_cur_buf = 1;
2186 else
2187 f_send_cur_buf = 1;
2188 }
2189 } else {
2190 /* Last pkt in TX queue */
2191 mwifiex_dbg(adapter, INFO,
2192 "info: %s: Last packet in Tx Queue.\n",
2193 __func__);
2194
2195 if (MP_TX_AGGR_IN_PROGRESS(card)) {
2196 /* some packs in Aggr buf already */
2197 f_send_aggr_buf = 1;
2198
2199 if (MP_TX_AGGR_BUF_HAS_ROOM(card, pkt_len))
2200 f_precopy_cur_buf = 1;
2201 else
2202 /* No room in Aggr buf, send it */
2203 f_send_cur_buf = 1;
2204 } else {
2205 f_send_cur_buf = 1;
2206 }
2207 }
2208
2209 if (f_precopy_cur_buf) {
2210 mwifiex_dbg(adapter, DATA,
2211 "data: %s: precopy current buffer\n",
2212 __func__);
2213 MP_TX_AGGR_BUF_PUT(card, payload, pkt_len, port);
2214
2215 if (MP_TX_AGGR_PKT_LIMIT_REACHED(card) ||
2216 mp_tx_aggr_port_limit_reached(card))
2217 /* No more pkts allowed in Aggr buf, send it */
2218 f_send_aggr_buf = 1;
2219 }
2220
2221 if (f_send_aggr_buf) {
2222 mwifiex_dbg(adapter, DATA,
2223 "data: %s: send aggr buffer: %d %d\n",
2224 __func__, card->mpa_tx.start_port,
2225 card->mpa_tx.ports);
2226 if (card->supports_sdio_new_mode) {
2227 u32 port_count;
2228 int i;
2229
2230 for (i = 0, port_count = 0; i < card->max_ports; i++)
2231 if (card->mpa_tx.ports & BIT(i))
2232 port_count++;
2233
2234 /* Writing data from "start_port + 0" to "start_port +
2235 * port_count -1", so decrease the count by 1
2236 */
2237 port_count--;
2238 mport = (adapter->ioport | SDIO_MPA_ADDR_BASE |
2239 (port_count << 8)) + card->mpa_tx.start_port;
2240 } else {
2241 mport = (adapter->ioport | SDIO_MPA_ADDR_BASE |
2242 (card->mpa_tx.ports << 4)) +
2243 card->mpa_tx.start_port;
2244 }
2245
2246 if (card->mpa_tx.pkt_cnt == 1)
2247 mport = adapter->ioport + card->mpa_tx.start_port;
2248
2249 ret = mwifiex_write_data_to_card(adapter, card->mpa_tx.buf,
2250 card->mpa_tx.buf_len, mport);
2251
2252 /* Save the last multi port tx aggreagation info to debug log */
2253 index = adapter->dbg.last_sdio_mp_index;
2254 index = (index + 1) % MWIFIEX_DBG_SDIO_MP_NUM;
2255 adapter->dbg.last_sdio_mp_index = index;
2256 adapter->dbg.last_mp_wr_ports[index] = mport;
2257 adapter->dbg.last_mp_wr_bitmap[index] = card->mp_wr_bitmap;
2258 adapter->dbg.last_mp_wr_len[index] = card->mpa_tx.buf_len;
2259 adapter->dbg.last_mp_curr_wr_port[index] = card->curr_wr_port;
2260
2261 MP_TX_AGGR_BUF_RESET(card);
2262 }
2263
2264tx_curr_single:
2265 if (f_send_cur_buf) {
2266 mwifiex_dbg(adapter, DATA,
2267 "data: %s: send current buffer %d\n",
2268 __func__, port);
2269 ret = mwifiex_write_data_to_card(adapter, payload, pkt_len,
2270 adapter->ioport + port);
2271 }
2272
2273 if (f_postcopy_cur_buf) {
2274 mwifiex_dbg(adapter, DATA,
2275 "data: %s: postcopy current buffer\n",
2276 __func__);
2277 MP_TX_AGGR_BUF_PUT(card, payload, pkt_len, port);
2278 }
2279
2280 return ret;
2281}
2282
2283/*
2284 * This function downloads data from driver to card.
2285 *
2286 * Both commands and data packets are transferred to the card by this
2287 * function.
2288 *
2289 * This function adds the SDIO specific header to the front of the buffer
2290 * before transferring. The header contains the length of the packet and
2291 * the type. The firmware handles the packets based upon this set type.
2292 */
2293static int mwifiex_sdio_host_to_card(struct mwifiex_adapter *adapter,
2294 u8 type, struct sk_buff *skb,
2295 struct mwifiex_tx_param *tx_param)
2296{
2297 struct sdio_mmc_card *card = adapter->card;
2298 int ret;
2299 u32 buf_block_len;
2300 u32 blk_size;
2301 u32 port = CTRL_PORT;
2302 u8 *payload = (u8 *)skb->data;
2303 u32 pkt_len = skb->len;
2304
2305 /* Allocate buffer and copy payload */
2306 blk_size = MWIFIEX_SDIO_BLOCK_SIZE;
2307 buf_block_len = (pkt_len + blk_size - 1) / blk_size;
2308 put_unaligned_le16((u16)pkt_len, payload + 0);
2309 put_unaligned_le16((u32)type, payload + 2);
2310
2311
2312 /*
2313 * This is SDIO specific header
2314 * u16 length,
2315 * u16 type (MWIFIEX_TYPE_DATA = 0, MWIFIEX_TYPE_CMD = 1,
2316 * MWIFIEX_TYPE_EVENT = 3)
2317 */
2318 if (type == MWIFIEX_TYPE_DATA) {
2319 ret = mwifiex_get_wr_port_data(adapter, &port);
2320 if (ret) {
2321 mwifiex_dbg(adapter, ERROR,
2322 "%s: no wr_port available\n",
2323 __func__);
2324 return ret;
2325 }
2326 } else {
2327 adapter->cmd_sent = true;
2328 /* Type must be MWIFIEX_TYPE_CMD */
2329
2330 if (pkt_len <= adapter->intf_hdr_len ||
2331 pkt_len > MWIFIEX_UPLD_SIZE)
2332 mwifiex_dbg(adapter, ERROR,
2333 "%s: payload=%p, nb=%d\n",
2334 __func__, payload, pkt_len);
2335
2336 if (card->supports_sdio_new_mode)
2337 port = CMD_PORT_SLCT;
2338 }
2339
2340 /* Transfer data to card */
2341 pkt_len = buf_block_len * blk_size;
2342
2343 if (tx_param)
2344 ret = mwifiex_host_to_card_mp_aggr(adapter, payload, pkt_len,
2345 port, tx_param->next_pkt_len
2346 );
2347 else
2348 ret = mwifiex_host_to_card_mp_aggr(adapter, payload, pkt_len,
2349 port, 0);
2350
2351 if (ret) {
2352 if (type == MWIFIEX_TYPE_CMD)
2353 adapter->cmd_sent = false;
2354 if (type == MWIFIEX_TYPE_DATA) {
2355 adapter->data_sent = false;
2356 /* restore curr_wr_port in error cases */
2357 card->curr_wr_port = port;
2358 card->mp_wr_bitmap |= (u32)(1 << card->curr_wr_port);
2359 }
2360 } else {
2361 if (type == MWIFIEX_TYPE_DATA) {
2362 if (!(card->mp_wr_bitmap & (1 << card->curr_wr_port)))
2363 adapter->data_sent = true;
2364 else
2365 adapter->data_sent = false;
2366 }
2367 }
2368
2369 return ret;
2370}
2371
2372/*
2373 * This function allocates the MPA Tx and Rx buffers.
2374 */
2375static int mwifiex_alloc_sdio_mpa_buffers(struct mwifiex_adapter *adapter,
2376 u32 mpa_tx_buf_size, u32 mpa_rx_buf_size)
2377{
2378 struct sdio_mmc_card *card = adapter->card;
2379 u32 rx_buf_size;
2380 int ret = 0;
2381
2382 card->mpa_tx.buf = kzalloc(mpa_tx_buf_size, GFP_KERNEL);
2383 if (!card->mpa_tx.buf) {
2384 ret = -1;
2385 goto error;
2386 }
2387
2388 card->mpa_tx.buf_size = mpa_tx_buf_size;
2389
2390 rx_buf_size = max_t(u32, mpa_rx_buf_size,
2391 (u32)SDIO_MAX_AGGR_BUF_SIZE);
2392 card->mpa_rx.buf = kzalloc(rx_buf_size, GFP_KERNEL);
2393 if (!card->mpa_rx.buf) {
2394 ret = -1;
2395 goto error;
2396 }
2397
2398 card->mpa_rx.buf_size = rx_buf_size;
2399
2400error:
2401 if (ret) {
2402 kfree(card->mpa_tx.buf);
2403 kfree(card->mpa_rx.buf);
2404 card->mpa_tx.buf_size = 0;
2405 card->mpa_rx.buf_size = 0;
2406 card->mpa_tx.buf = NULL;
2407 card->mpa_rx.buf = NULL;
2408 }
2409
2410 return ret;
2411}
2412
2413/*
2414 * This function unregisters the SDIO device.
2415 *
2416 * The SDIO IRQ is released, the function is disabled and driver
2417 * data is set to null.
2418 */
2419static void
2420mwifiex_unregister_dev(struct mwifiex_adapter *adapter)
2421{
2422 struct sdio_mmc_card *card = adapter->card;
2423
2424 if (adapter->card) {
2425 card->adapter = NULL;
2426 sdio_claim_host(card->func);
2427 sdio_disable_func(card->func);
2428 sdio_release_host(card->func);
2429 }
2430}
2431
2432/*
2433 * This function registers the SDIO device.
2434 *
2435 * SDIO IRQ is claimed, block size is set and driver data is initialized.
2436 */
2437static int mwifiex_register_dev(struct mwifiex_adapter *adapter)
2438{
2439 int ret;
2440 struct sdio_mmc_card *card = adapter->card;
2441 struct sdio_func *func = card->func;
2442
2443 /* save adapter pointer in card */
2444 card->adapter = adapter;
2445 adapter->tx_buf_size = card->tx_buf_size;
2446
2447 sdio_claim_host(func);
2448
2449 /* Set block size */
2450 ret = sdio_set_block_size(card->func, MWIFIEX_SDIO_BLOCK_SIZE);
2451 sdio_release_host(func);
2452 if (ret) {
2453 mwifiex_dbg(adapter, ERROR,
2454 "cannot set SDIO block size\n");
2455 return ret;
2456 }
2457
2458 strcpy(adapter->fw_name, card->firmware);
2459 if (card->fw_dump_enh) {
2460 adapter->mem_type_mapping_tbl = generic_mem_type_map;
2461 adapter->num_mem_types = 1;
2462 } else {
2463 adapter->mem_type_mapping_tbl = mem_type_mapping_tbl;
2464 adapter->num_mem_types = ARRAY_SIZE(mem_type_mapping_tbl);
2465 }
2466
2467 return 0;
2468}
2469
2470/*
2471 * This function initializes the SDIO driver.
2472 *
2473 * The following initializations steps are followed -
2474 * - Read the Host interrupt status register to acknowledge
2475 * the first interrupt got from bootloader
2476 * - Disable host interrupt mask register
2477 * - Get SDIO port
2478 * - Initialize SDIO variables in card
2479 * - Allocate MP registers
2480 * - Allocate MPA Tx and Rx buffers
2481 */
2482static int mwifiex_init_sdio(struct mwifiex_adapter *adapter)
2483{
2484 struct sdio_mmc_card *card = adapter->card;
2485 const struct mwifiex_sdio_card_reg *reg = card->reg;
2486 int ret;
2487 u8 sdio_ireg;
2488
2489 sdio_set_drvdata(card->func, card);
2490
2491 /*
2492 * Read the host_int_status_reg for ACK the first interrupt got
2493 * from the bootloader. If we don't do this we get a interrupt
2494 * as soon as we register the irq.
2495 */
2496 mwifiex_read_reg(adapter, card->reg->host_int_status_reg, &sdio_ireg);
2497
2498 /* Get SDIO ioport */
2499 mwifiex_init_sdio_ioport(adapter);
2500
2501 /* Initialize SDIO variables in card */
2502 card->mp_rd_bitmap = 0;
2503 card->mp_wr_bitmap = 0;
2504 card->curr_rd_port = reg->start_rd_port;
2505 card->curr_wr_port = reg->start_wr_port;
2506
2507 card->mp_data_port_mask = reg->data_port_mask;
2508
2509 card->mpa_tx.buf_len = 0;
2510 card->mpa_tx.pkt_cnt = 0;
2511 card->mpa_tx.start_port = 0;
2512
2513 card->mpa_tx.enabled = 1;
2514 card->mpa_tx.pkt_aggr_limit = card->mp_agg_pkt_limit;
2515
2516 card->mpa_rx.buf_len = 0;
2517 card->mpa_rx.pkt_cnt = 0;
2518 card->mpa_rx.start_port = 0;
2519
2520 card->mpa_rx.enabled = 1;
2521 card->mpa_rx.pkt_aggr_limit = card->mp_agg_pkt_limit;
2522
2523 /* Allocate buffers for SDIO MP-A */
2524 card->mp_regs = kzalloc(reg->max_mp_regs, GFP_KERNEL);
2525 if (!card->mp_regs)
2526 return -ENOMEM;
2527
2528 /* Allocate skb pointer buffers */
2529 card->mpa_rx.skb_arr = kcalloc(card->mp_agg_pkt_limit, sizeof(void *),
2530 GFP_KERNEL);
2531 if (!card->mpa_rx.skb_arr) {
2532 kfree(card->mp_regs);
2533 return -ENOMEM;
2534 }
2535
2536 card->mpa_rx.len_arr = kcalloc(card->mp_agg_pkt_limit,
2537 sizeof(*card->mpa_rx.len_arr),
2538 GFP_KERNEL);
2539 if (!card->mpa_rx.len_arr) {
2540 kfree(card->mp_regs);
2541 kfree(card->mpa_rx.skb_arr);
2542 return -ENOMEM;
2543 }
2544
2545 ret = mwifiex_alloc_sdio_mpa_buffers(adapter,
2546 card->mp_tx_agg_buf_size,
2547 card->mp_rx_agg_buf_size);
2548
2549 /* Allocate 32k MPA Tx/Rx buffers if 64k memory allocation fails */
2550 if (ret && (card->mp_tx_agg_buf_size == MWIFIEX_MP_AGGR_BUF_SIZE_MAX ||
2551 card->mp_rx_agg_buf_size == MWIFIEX_MP_AGGR_BUF_SIZE_MAX)) {
2552 /* Disable rx single port aggregation */
2553 adapter->host_disable_sdio_rx_aggr = true;
2554
2555 ret = mwifiex_alloc_sdio_mpa_buffers
2556 (adapter, MWIFIEX_MP_AGGR_BUF_SIZE_32K,
2557 MWIFIEX_MP_AGGR_BUF_SIZE_32K);
2558 if (ret) {
2559 /* Disable multi port aggregation */
2560 card->mpa_tx.enabled = 0;
2561 card->mpa_rx.enabled = 0;
2562 }
2563 }
2564
2565 adapter->auto_tdls = card->can_auto_tdls;
2566 adapter->ext_scan = card->can_ext_scan;
2567 return 0;
2568}
2569
2570/*
2571 * This function resets the MPA Tx and Rx buffers.
2572 */
2573static void mwifiex_cleanup_mpa_buf(struct mwifiex_adapter *adapter)
2574{
2575 struct sdio_mmc_card *card = adapter->card;
2576
2577 MP_TX_AGGR_BUF_RESET(card);
2578 MP_RX_AGGR_BUF_RESET(card);
2579}
2580
2581/*
2582 * This function cleans up the allocated card buffers.
2583 *
2584 * The following are freed by this function -
2585 * - MP registers
2586 * - MPA Tx buffer
2587 * - MPA Rx buffer
2588 */
2589static void mwifiex_cleanup_sdio(struct mwifiex_adapter *adapter)
2590{
2591 struct sdio_mmc_card *card = adapter->card;
2592
2593 cancel_work_sync(&card->work);
2594
2595 kfree(card->mp_regs);
2596 kfree(card->mpa_rx.skb_arr);
2597 kfree(card->mpa_rx.len_arr);
2598 kfree(card->mpa_tx.buf);
2599 kfree(card->mpa_rx.buf);
2600}
2601
2602/*
2603 * This function updates the MP end port in card.
2604 */
2605static void
2606mwifiex_update_mp_end_port(struct mwifiex_adapter *adapter, u16 port)
2607{
2608 struct sdio_mmc_card *card = adapter->card;
2609 const struct mwifiex_sdio_card_reg *reg = card->reg;
2610 int i;
2611
2612 card->mp_end_port = port;
2613
2614 card->mp_data_port_mask = reg->data_port_mask;
2615
2616 if (reg->start_wr_port) {
2617 for (i = 1; i <= card->max_ports - card->mp_end_port; i++)
2618 card->mp_data_port_mask &=
2619 ~(1 << (card->max_ports - i));
2620 }
2621
2622 card->curr_wr_port = reg->start_wr_port;
2623
2624 mwifiex_dbg(adapter, CMD,
2625 "cmd: mp_end_port %d, data port mask 0x%x\n",
2626 port, card->mp_data_port_mask);
2627}
2628
2629static void mwifiex_sdio_card_reset_work(struct mwifiex_adapter *adapter)
2630{
2631 struct sdio_mmc_card *card = adapter->card;
2632 struct sdio_func *func = card->func;
2633 int ret;
2634
2635 /* Prepare the adapter for the reset. */
2636 mwifiex_shutdown_sw(adapter);
2637 clear_bit(MWIFIEX_IFACE_WORK_DEVICE_DUMP, &card->work_flags);
2638 clear_bit(MWIFIEX_IFACE_WORK_CARD_RESET, &card->work_flags);
2639
2640 /* Run a HW reset of the SDIO interface. */
2641 sdio_claim_host(func);
2642 ret = mmc_hw_reset(func->card->host);
2643 sdio_release_host(func);
2644
2645 switch (ret) {
2646 case 1:
2647 dev_dbg(&func->dev, "SDIO HW reset asynchronous\n");
2648 complete_all(adapter->fw_done);
2649 break;
2650 case 0:
2651 ret = mwifiex_reinit_sw(adapter);
2652 if (ret)
2653 dev_err(&func->dev, "reinit failed: %d\n", ret);
2654 break;
2655 default:
2656 dev_err(&func->dev, "SDIO HW reset failed: %d\n", ret);
2657 break;
2658 }
2659}
2660
2661/* This function read/write firmware */
2662static enum
2663rdwr_status mwifiex_sdio_rdwr_firmware(struct mwifiex_adapter *adapter,
2664 u8 doneflag)
2665{
2666 struct sdio_mmc_card *card = adapter->card;
2667 int ret, tries;
2668 u8 ctrl_data = 0;
2669
2670 sdio_writeb(card->func, card->reg->fw_dump_host_ready,
2671 card->reg->fw_dump_ctrl, &ret);
2672 if (ret) {
2673 mwifiex_dbg(adapter, ERROR, "SDIO Write ERR\n");
2674 return RDWR_STATUS_FAILURE;
2675 }
2676 for (tries = 0; tries < MAX_POLL_TRIES; tries++) {
2677 ctrl_data = sdio_readb(card->func, card->reg->fw_dump_ctrl,
2678 &ret);
2679 if (ret) {
2680 mwifiex_dbg(adapter, ERROR, "SDIO read err\n");
2681 return RDWR_STATUS_FAILURE;
2682 }
2683 if (ctrl_data == FW_DUMP_DONE)
2684 break;
2685 if (doneflag && ctrl_data == doneflag)
2686 return RDWR_STATUS_DONE;
2687 if (ctrl_data != card->reg->fw_dump_host_ready) {
2688 mwifiex_dbg(adapter, WARN,
2689 "The ctrl reg was changed, re-try again\n");
2690 sdio_writeb(card->func, card->reg->fw_dump_host_ready,
2691 card->reg->fw_dump_ctrl, &ret);
2692 if (ret) {
2693 mwifiex_dbg(adapter, ERROR, "SDIO write err\n");
2694 return RDWR_STATUS_FAILURE;
2695 }
2696 }
2697 usleep_range(100, 200);
2698 }
2699 if (ctrl_data == card->reg->fw_dump_host_ready) {
2700 mwifiex_dbg(adapter, ERROR,
2701 "Fail to pull ctrl_data\n");
2702 return RDWR_STATUS_FAILURE;
2703 }
2704
2705 return RDWR_STATUS_SUCCESS;
2706}
2707
2708/* This function dump firmware memory to file */
2709static void mwifiex_sdio_fw_dump(struct mwifiex_adapter *adapter)
2710{
2711 struct sdio_mmc_card *card = adapter->card;
2712 int ret = 0;
2713 unsigned int reg, reg_start, reg_end;
2714 u8 *dbg_ptr, *end_ptr, dump_num, idx, i, read_reg, doneflag = 0;
2715 enum rdwr_status stat;
2716 u32 memory_size;
2717
2718 if (!card->can_dump_fw)
2719 return;
2720
2721 for (idx = 0; idx < ARRAY_SIZE(mem_type_mapping_tbl); idx++) {
2722 struct memory_type_mapping *entry = &mem_type_mapping_tbl[idx];
2723
2724 if (entry->mem_ptr) {
2725 vfree(entry->mem_ptr);
2726 entry->mem_ptr = NULL;
2727 }
2728 entry->mem_size = 0;
2729 }
2730
2731 mwifiex_pm_wakeup_card(adapter);
2732 sdio_claim_host(card->func);
2733
2734 mwifiex_dbg(adapter, MSG, "== mwifiex firmware dump start ==\n");
2735
2736 stat = mwifiex_sdio_rdwr_firmware(adapter, doneflag);
2737 if (stat == RDWR_STATUS_FAILURE)
2738 goto done;
2739
2740 reg = card->reg->fw_dump_start;
2741 /* Read the number of the memories which will dump */
2742 dump_num = sdio_readb(card->func, reg, &ret);
2743 if (ret) {
2744 mwifiex_dbg(adapter, ERROR, "SDIO read memory length err\n");
2745 goto done;
2746 }
2747
2748 /* Read the length of every memory which will dump */
2749 for (idx = 0; idx < dump_num; idx++) {
2750 struct memory_type_mapping *entry = &mem_type_mapping_tbl[idx];
2751
2752 stat = mwifiex_sdio_rdwr_firmware(adapter, doneflag);
2753 if (stat == RDWR_STATUS_FAILURE)
2754 goto done;
2755
2756 memory_size = 0;
2757 reg = card->reg->fw_dump_start;
2758 for (i = 0; i < 4; i++) {
2759 read_reg = sdio_readb(card->func, reg, &ret);
2760 if (ret) {
2761 mwifiex_dbg(adapter, ERROR, "SDIO read err\n");
2762 goto done;
2763 }
2764 memory_size |= (read_reg << i*8);
2765 reg++;
2766 }
2767
2768 if (memory_size == 0) {
2769 mwifiex_dbg(adapter, DUMP, "Firmware dump Finished!\n");
2770 ret = mwifiex_write_reg(adapter,
2771 card->reg->fw_dump_ctrl,
2772 FW_DUMP_READ_DONE);
2773 if (ret) {
2774 mwifiex_dbg(adapter, ERROR, "SDIO write err\n");
2775 return;
2776 }
2777 break;
2778 }
2779
2780 mwifiex_dbg(adapter, DUMP,
2781 "%s_SIZE=0x%x\n", entry->mem_name, memory_size);
2782 entry->mem_ptr = vmalloc(memory_size + 1);
2783 entry->mem_size = memory_size;
2784 if (!entry->mem_ptr) {
2785 mwifiex_dbg(adapter, ERROR, "Vmalloc %s failed\n",
2786 entry->mem_name);
2787 goto done;
2788 }
2789 dbg_ptr = entry->mem_ptr;
2790 end_ptr = dbg_ptr + memory_size;
2791
2792 doneflag = entry->done_flag;
2793 mwifiex_dbg(adapter, DUMP,
2794 "Start %s output, please wait...\n",
2795 entry->mem_name);
2796
2797 do {
2798 stat = mwifiex_sdio_rdwr_firmware(adapter, doneflag);
2799 if (stat == RDWR_STATUS_FAILURE)
2800 goto done;
2801
2802 reg_start = card->reg->fw_dump_start;
2803 reg_end = card->reg->fw_dump_end;
2804 for (reg = reg_start; reg <= reg_end; reg++) {
2805 *dbg_ptr = sdio_readb(card->func, reg, &ret);
2806 if (ret) {
2807 mwifiex_dbg(adapter, ERROR,
2808 "SDIO read err\n");
2809 goto done;
2810 }
2811 if (dbg_ptr < end_ptr)
2812 dbg_ptr++;
2813 else
2814 mwifiex_dbg(adapter, ERROR,
2815 "Allocated buf not enough\n");
2816 }
2817
2818 if (stat != RDWR_STATUS_DONE)
2819 continue;
2820
2821 mwifiex_dbg(adapter, DUMP, "%s done: size=0x%tx\n",
2822 entry->mem_name, dbg_ptr - entry->mem_ptr);
2823 break;
2824 } while (1);
2825 }
2826 mwifiex_dbg(adapter, MSG, "== mwifiex firmware dump end ==\n");
2827
2828done:
2829 sdio_release_host(card->func);
2830}
2831
2832static void mwifiex_sdio_generic_fw_dump(struct mwifiex_adapter *adapter)
2833{
2834 struct sdio_mmc_card *card = adapter->card;
2835 struct memory_type_mapping *entry = &generic_mem_type_map[0];
2836 unsigned int reg, reg_start, reg_end;
2837 u8 start_flag = 0, done_flag = 0;
2838 u8 *dbg_ptr, *end_ptr;
2839 enum rdwr_status stat;
2840 int ret = -1, tries;
2841
2842 if (!card->fw_dump_enh)
2843 return;
2844
2845 if (entry->mem_ptr) {
2846 vfree(entry->mem_ptr);
2847 entry->mem_ptr = NULL;
2848 }
2849 entry->mem_size = 0;
2850
2851 mwifiex_pm_wakeup_card(adapter);
2852 sdio_claim_host(card->func);
2853
2854 mwifiex_dbg(adapter, MSG, "== mwifiex firmware dump start ==\n");
2855
2856 stat = mwifiex_sdio_rdwr_firmware(adapter, done_flag);
2857 if (stat == RDWR_STATUS_FAILURE)
2858 goto done;
2859
2860 reg_start = card->reg->fw_dump_start;
2861 reg_end = card->reg->fw_dump_end;
2862 for (reg = reg_start; reg <= reg_end; reg++) {
2863 for (tries = 0; tries < MAX_POLL_TRIES; tries++) {
2864 start_flag = sdio_readb(card->func, reg, &ret);
2865 if (ret) {
2866 mwifiex_dbg(adapter, ERROR,
2867 "SDIO read err\n");
2868 goto done;
2869 }
2870 if (start_flag == 0)
2871 break;
2872 if (tries == MAX_POLL_TRIES) {
2873 mwifiex_dbg(adapter, ERROR,
2874 "FW not ready to dump\n");
2875 ret = -1;
2876 goto done;
2877 }
2878 }
2879 usleep_range(100, 200);
2880 }
2881
2882 entry->mem_ptr = vmalloc(0xf0000 + 1);
2883 if (!entry->mem_ptr) {
2884 ret = -1;
2885 goto done;
2886 }
2887 dbg_ptr = entry->mem_ptr;
2888 entry->mem_size = 0xf0000;
2889 end_ptr = dbg_ptr + entry->mem_size;
2890
2891 done_flag = entry->done_flag;
2892 mwifiex_dbg(adapter, DUMP,
2893 "Start %s output, please wait...\n", entry->mem_name);
2894
2895 while (true) {
2896 stat = mwifiex_sdio_rdwr_firmware(adapter, done_flag);
2897 if (stat == RDWR_STATUS_FAILURE)
2898 goto done;
2899 for (reg = reg_start; reg <= reg_end; reg++) {
2900 *dbg_ptr = sdio_readb(card->func, reg, &ret);
2901 if (ret) {
2902 mwifiex_dbg(adapter, ERROR,
2903 "SDIO read err\n");
2904 goto done;
2905 }
2906 dbg_ptr++;
2907 if (dbg_ptr >= end_ptr) {
2908 u8 *tmp_ptr;
2909
2910 tmp_ptr = vmalloc(entry->mem_size + 0x4000 + 1);
2911 if (!tmp_ptr)
2912 goto done;
2913
2914 memcpy(tmp_ptr, entry->mem_ptr,
2915 entry->mem_size);
2916 vfree(entry->mem_ptr);
2917 entry->mem_ptr = tmp_ptr;
2918 tmp_ptr = NULL;
2919 dbg_ptr = entry->mem_ptr + entry->mem_size;
2920 entry->mem_size += 0x4000;
2921 end_ptr = entry->mem_ptr + entry->mem_size;
2922 }
2923 }
2924 if (stat == RDWR_STATUS_DONE) {
2925 entry->mem_size = dbg_ptr - entry->mem_ptr;
2926 mwifiex_dbg(adapter, DUMP, "dump %s done size=0x%x\n",
2927 entry->mem_name, entry->mem_size);
2928 ret = 0;
2929 break;
2930 }
2931 }
2932 mwifiex_dbg(adapter, MSG, "== mwifiex firmware dump end ==\n");
2933
2934done:
2935 if (ret) {
2936 mwifiex_dbg(adapter, ERROR, "firmware dump failed\n");
2937 if (entry->mem_ptr) {
2938 vfree(entry->mem_ptr);
2939 entry->mem_ptr = NULL;
2940 }
2941 entry->mem_size = 0;
2942 }
2943 sdio_release_host(card->func);
2944}
2945
2946static void mwifiex_sdio_device_dump_work(struct mwifiex_adapter *adapter)
2947{
2948 struct sdio_mmc_card *card = adapter->card;
2949
2950 adapter->devdump_data = vzalloc(MWIFIEX_FW_DUMP_SIZE);
2951 if (!adapter->devdump_data) {
2952 mwifiex_dbg(adapter, ERROR,
2953 "vzalloc devdump data failure!\n");
2954 return;
2955 }
2956
2957 mwifiex_drv_info_dump(adapter);
2958 if (card->fw_dump_enh)
2959 mwifiex_sdio_generic_fw_dump(adapter);
2960 else
2961 mwifiex_sdio_fw_dump(adapter);
2962 mwifiex_prepare_fw_dump_info(adapter);
2963 mwifiex_upload_device_dump(adapter);
2964}
2965
2966static void mwifiex_sdio_work(struct work_struct *work)
2967{
2968 struct sdio_mmc_card *card =
2969 container_of(work, struct sdio_mmc_card, work);
2970
2971 if (test_and_clear_bit(MWIFIEX_IFACE_WORK_DEVICE_DUMP,
2972 &card->work_flags))
2973 mwifiex_sdio_device_dump_work(card->adapter);
2974 if (test_and_clear_bit(MWIFIEX_IFACE_WORK_CARD_RESET,
2975 &card->work_flags))
2976 mwifiex_sdio_card_reset_work(card->adapter);
2977}
2978
2979/* This function resets the card */
2980static void mwifiex_sdio_card_reset(struct mwifiex_adapter *adapter)
2981{
2982 struct sdio_mmc_card *card = adapter->card;
2983
2984 if (!test_and_set_bit(MWIFIEX_IFACE_WORK_CARD_RESET, &card->work_flags))
2985 schedule_work(&card->work);
2986}
2987
2988/* This function dumps FW information */
2989static void mwifiex_sdio_device_dump(struct mwifiex_adapter *adapter)
2990{
2991 struct sdio_mmc_card *card = adapter->card;
2992
2993 if (!test_and_set_bit(MWIFIEX_IFACE_WORK_DEVICE_DUMP,
2994 &card->work_flags))
2995 schedule_work(&card->work);
2996}
2997
2998/* Function to dump SDIO function registers and SDIO scratch registers in case
2999 * of FW crash
3000 */
3001static int
3002mwifiex_sdio_reg_dump(struct mwifiex_adapter *adapter, char *drv_buf)
3003{
3004 char *p = drv_buf;
3005 struct sdio_mmc_card *cardp = adapter->card;
3006 int ret = 0;
3007 u8 count, func, data, index = 0, size = 0;
3008 u8 reg, reg_start, reg_end;
3009 char buf[256], *ptr;
3010
3011 if (!p)
3012 return 0;
3013
3014 mwifiex_dbg(adapter, MSG, "SDIO register dump start\n");
3015
3016 mwifiex_pm_wakeup_card(adapter);
3017
3018 sdio_claim_host(cardp->func);
3019
3020 for (count = 0; count < 5; count++) {
3021 memset(buf, 0, sizeof(buf));
3022 ptr = buf;
3023
3024 switch (count) {
3025 case 0:
3026 /* Read the registers of SDIO function0 */
3027 func = count;
3028 reg_start = 0;
3029 reg_end = 9;
3030 break;
3031 case 1:
3032 /* Read the registers of SDIO function1 */
3033 func = count;
3034 reg_start = cardp->reg->func1_dump_reg_start;
3035 reg_end = cardp->reg->func1_dump_reg_end;
3036 break;
3037 case 2:
3038 index = 0;
3039 func = 1;
3040 reg_start = cardp->reg->func1_spec_reg_table[index++];
3041 size = cardp->reg->func1_spec_reg_num;
3042 reg_end = cardp->reg->func1_spec_reg_table[size-1];
3043 break;
3044 default:
3045 /* Read the scratch registers of SDIO function1 */
3046 if (count == 4)
3047 mdelay(100);
3048 func = 1;
3049 reg_start = cardp->reg->func1_scratch_reg;
3050 reg_end = reg_start + MWIFIEX_SDIO_SCRATCH_SIZE;
3051 }
3052
3053 if (count != 2)
3054 ptr += sprintf(ptr, "SDIO Func%d (%#x-%#x): ",
3055 func, reg_start, reg_end);
3056 else
3057 ptr += sprintf(ptr, "SDIO Func%d: ", func);
3058
3059 for (reg = reg_start; reg <= reg_end;) {
3060 if (func == 0)
3061 data = sdio_f0_readb(cardp->func, reg, &ret);
3062 else
3063 data = sdio_readb(cardp->func, reg, &ret);
3064
3065 if (count == 2)
3066 ptr += sprintf(ptr, "(%#x) ", reg);
3067 if (!ret) {
3068 ptr += sprintf(ptr, "%02x ", data);
3069 } else {
3070 ptr += sprintf(ptr, "ERR");
3071 break;
3072 }
3073
3074 if (count == 2 && reg < reg_end)
3075 reg = cardp->reg->func1_spec_reg_table[index++];
3076 else
3077 reg++;
3078 }
3079
3080 mwifiex_dbg(adapter, MSG, "%s\n", buf);
3081 p += sprintf(p, "%s\n", buf);
3082 }
3083
3084 sdio_release_host(cardp->func);
3085
3086 mwifiex_dbg(adapter, MSG, "SDIO register dump end\n");
3087
3088 return p - drv_buf;
3089}
3090
3091/* sdio device/function initialization, code is extracted
3092 * from init_if handler and register_dev handler.
3093 */
3094static void mwifiex_sdio_up_dev(struct mwifiex_adapter *adapter)
3095{
3096 struct sdio_mmc_card *card = adapter->card;
3097 u8 sdio_ireg;
3098
3099 sdio_claim_host(card->func);
3100 sdio_enable_func(card->func);
3101 sdio_set_block_size(card->func, MWIFIEX_SDIO_BLOCK_SIZE);
3102 sdio_release_host(card->func);
3103
3104 /* tx_buf_size might be changed to 3584 by firmware during
3105 * data transfer, we will reset to default size.
3106 */
3107 adapter->tx_buf_size = card->tx_buf_size;
3108
3109 /* Read the host_int_status_reg for ACK the first interrupt got
3110 * from the bootloader. If we don't do this we get a interrupt
3111 * as soon as we register the irq.
3112 */
3113 mwifiex_read_reg(adapter, card->reg->host_int_status_reg, &sdio_ireg);
3114
3115 mwifiex_init_sdio_ioport(adapter);
3116}
3117
3118static struct mwifiex_if_ops sdio_ops = {
3119 .init_if = mwifiex_init_sdio,
3120 .cleanup_if = mwifiex_cleanup_sdio,
3121 .check_fw_status = mwifiex_check_fw_status,
3122 .check_winner_status = mwifiex_check_winner_status,
3123 .prog_fw = mwifiex_prog_fw_w_helper,
3124 .register_dev = mwifiex_register_dev,
3125 .unregister_dev = mwifiex_unregister_dev,
3126 .enable_int = mwifiex_sdio_enable_host_int,
3127 .disable_int = mwifiex_sdio_disable_host_int,
3128 .process_int_status = mwifiex_process_int_status,
3129 .host_to_card = mwifiex_sdio_host_to_card,
3130 .wakeup = mwifiex_pm_wakeup_card,
3131 .wakeup_complete = mwifiex_pm_wakeup_card_complete,
3132
3133 /* SDIO specific */
3134 .update_mp_end_port = mwifiex_update_mp_end_port,
3135 .cleanup_mpa_buf = mwifiex_cleanup_mpa_buf,
3136 .cmdrsp_complete = mwifiex_sdio_cmdrsp_complete,
3137 .event_complete = mwifiex_sdio_event_complete,
3138 .dnld_fw = mwifiex_sdio_dnld_fw,
3139 .card_reset = mwifiex_sdio_card_reset,
3140 .reg_dump = mwifiex_sdio_reg_dump,
3141 .device_dump = mwifiex_sdio_device_dump,
3142 .deaggr_pkt = mwifiex_deaggr_sdio_pkt,
3143 .up_dev = mwifiex_sdio_up_dev,
3144};
3145
3146module_driver(mwifiex_sdio, sdio_register_driver, sdio_unregister_driver);
3147
3148MODULE_AUTHOR("Marvell International Ltd.");
3149MODULE_DESCRIPTION("Marvell WiFi-Ex SDIO Driver version " SDIO_VERSION);
3150MODULE_VERSION(SDIO_VERSION);
3151MODULE_LICENSE("GPL v2");
3152MODULE_FIRMWARE(SD8786_DEFAULT_FW_NAME);
3153MODULE_FIRMWARE(SD8787_DEFAULT_FW_NAME);
3154MODULE_FIRMWARE(SD8797_DEFAULT_FW_NAME);
3155MODULE_FIRMWARE(SD8897_DEFAULT_FW_NAME);
3156MODULE_FIRMWARE(SD8887_DEFAULT_FW_NAME);
3157MODULE_FIRMWARE(SD8977_DEFAULT_FW_NAME);
3158MODULE_FIRMWARE(SD8987_DEFAULT_FW_NAME);
3159MODULE_FIRMWARE(SD8997_DEFAULT_FW_NAME);