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789221ec BZ |
1 | /** |
2 | * Marvell BT-over-SDIO driver: SDIO interface related functions. | |
3 | * | |
4 | * Copyright (C) 2009, Marvell International Ltd. | |
5 | * | |
6 | * This software file (the "File") is distributed by Marvell International | |
7 | * Ltd. under the terms of the GNU General Public License Version 2, June 1991 | |
8 | * (the "License"). You may use, redistribute and/or modify this File in | |
9 | * accordance with the terms and conditions of the License, a copy of which | |
10 | * is available by writing to the Free Software Foundation, Inc., | |
11 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the | |
12 | * worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt. | |
13 | * | |
14 | * | |
15 | * THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE | |
16 | * IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE | |
17 | * ARE EXPRESSLY DISCLAIMED. The License provides additional details about | |
18 | * this warranty disclaimer. | |
19 | **/ | |
20 | ||
433a9389 | 21 | #include <linux/firmware.h> |
5a0e3ad6 | 22 | #include <linux/slab.h> |
789221ec BZ |
23 | |
24 | #include <linux/mmc/sdio_ids.h> | |
25 | #include <linux/mmc/sdio_func.h> | |
a59b968e | 26 | #include <linux/module.h> |
789221ec BZ |
27 | |
28 | #include <net/bluetooth/bluetooth.h> | |
29 | #include <net/bluetooth/hci_core.h> | |
30 | ||
31 | #include "btmrvl_drv.h" | |
32 | #include "btmrvl_sdio.h" | |
33 | ||
34 | #define VERSION "1.0" | |
35 | ||
789221ec BZ |
36 | /* The btmrvl_sdio_remove() callback function is called |
37 | * when user removes this module from kernel space or ejects | |
38 | * the card from the slot. The driver handles these 2 cases | |
39 | * differently. | |
40 | * If the user is removing the module, a MODULE_SHUTDOWN_REQ | |
41 | * command is sent to firmware and interrupt will be disabled. | |
42 | * If the card is removed, there is no need to send command | |
43 | * or disable interrupt. | |
44 | * | |
45 | * The variable 'user_rmmod' is used to distinguish these two | |
46 | * scenarios. This flag is initialized as FALSE in case the card | |
47 | * is removed, and will be set to TRUE for module removal when | |
48 | * module_exit function is called. | |
49 | */ | |
50 | static u8 user_rmmod; | |
d1d10d78 | 51 | static u8 sdio_ireg; |
789221ec | 52 | |
9f72c1d9 KG |
53 | static const struct btmrvl_sdio_card_reg btmrvl_reg_8688 = { |
54 | .cfg = 0x03, | |
55 | .host_int_mask = 0x04, | |
56 | .host_intstatus = 0x05, | |
57 | .card_status = 0x20, | |
58 | .sq_read_base_addr_a0 = 0x10, | |
59 | .sq_read_base_addr_a1 = 0x11, | |
60 | .card_fw_status0 = 0x40, | |
61 | .card_fw_status1 = 0x41, | |
62 | .card_rx_len = 0x42, | |
63 | .card_rx_unit = 0x43, | |
64 | .io_port_0 = 0x00, | |
65 | .io_port_1 = 0x01, | |
66 | .io_port_2 = 0x02, | |
0d367408 | 67 | .int_read_to_clear = false, |
9f72c1d9 | 68 | }; |
2ac654f7 | 69 | static const struct btmrvl_sdio_card_reg btmrvl_reg_87xx = { |
9f72c1d9 KG |
70 | .cfg = 0x00, |
71 | .host_int_mask = 0x02, | |
72 | .host_intstatus = 0x03, | |
73 | .card_status = 0x30, | |
74 | .sq_read_base_addr_a0 = 0x40, | |
75 | .sq_read_base_addr_a1 = 0x41, | |
76 | .card_revision = 0x5c, | |
77 | .card_fw_status0 = 0x60, | |
78 | .card_fw_status1 = 0x61, | |
79 | .card_rx_len = 0x62, | |
80 | .card_rx_unit = 0x63, | |
81 | .io_port_0 = 0x78, | |
82 | .io_port_1 = 0x79, | |
83 | .io_port_2 = 0x7a, | |
0d367408 | 84 | .int_read_to_clear = false, |
9f72c1d9 KG |
85 | }; |
86 | ||
3907d558 XH |
87 | static const struct btmrvl_sdio_card_reg btmrvl_reg_8887 = { |
88 | .cfg = 0x00, | |
89 | .host_int_mask = 0x08, | |
90 | .host_intstatus = 0x0C, | |
91 | .card_status = 0x5C, | |
92 | .sq_read_base_addr_a0 = 0x6C, | |
93 | .sq_read_base_addr_a1 = 0x6D, | |
94 | .card_revision = 0xC8, | |
95 | .card_fw_status0 = 0x88, | |
96 | .card_fw_status1 = 0x89, | |
97 | .card_rx_len = 0x8A, | |
98 | .card_rx_unit = 0x8B, | |
99 | .io_port_0 = 0xE4, | |
100 | .io_port_1 = 0xE5, | |
101 | .io_port_2 = 0xE6, | |
102 | .int_read_to_clear = true, | |
103 | .host_int_rsr = 0x04, | |
104 | .card_misc_cfg = 0xD8, | |
105 | }; | |
106 | ||
1e3e492c | 107 | static const struct btmrvl_sdio_card_reg btmrvl_reg_8897 = { |
22f2efed BZ |
108 | .cfg = 0x00, |
109 | .host_int_mask = 0x02, | |
110 | .host_intstatus = 0x03, | |
111 | .card_status = 0x50, | |
112 | .sq_read_base_addr_a0 = 0x60, | |
113 | .sq_read_base_addr_a1 = 0x61, | |
114 | .card_revision = 0xbc, | |
115 | .card_fw_status0 = 0xc0, | |
116 | .card_fw_status1 = 0xc1, | |
117 | .card_rx_len = 0xc2, | |
118 | .card_rx_unit = 0xc3, | |
119 | .io_port_0 = 0xd8, | |
120 | .io_port_1 = 0xd9, | |
121 | .io_port_2 = 0xda, | |
0d367408 BZ |
122 | .int_read_to_clear = true, |
123 | .host_int_rsr = 0x01, | |
124 | .card_misc_cfg = 0xcc, | |
22f2efed BZ |
125 | }; |
126 | ||
c675786a | 127 | static const struct btmrvl_sdio_device btmrvl_sdio_sd8688 = { |
77189df4 LR |
128 | .helper = "mrvl/sd8688_helper.bin", |
129 | .firmware = "mrvl/sd8688.bin", | |
9f72c1d9 | 130 | .reg = &btmrvl_reg_8688, |
4df82b59 | 131 | .support_pscan_win_report = false, |
9f72c1d9 KG |
132 | .sd_blksz_fw_dl = 64, |
133 | }; | |
134 | ||
135 | static const struct btmrvl_sdio_device btmrvl_sdio_sd8787 = { | |
136 | .helper = NULL, | |
137 | .firmware = "mrvl/sd8787_uapsta.bin", | |
2ac654f7 | 138 | .reg = &btmrvl_reg_87xx, |
4df82b59 | 139 | .support_pscan_win_report = false, |
2ac654f7 BZ |
140 | .sd_blksz_fw_dl = 256, |
141 | }; | |
142 | ||
143 | static const struct btmrvl_sdio_device btmrvl_sdio_sd8797 = { | |
144 | .helper = NULL, | |
145 | .firmware = "mrvl/sd8797_uapsta.bin", | |
146 | .reg = &btmrvl_reg_87xx, | |
4df82b59 | 147 | .support_pscan_win_report = false, |
9f72c1d9 | 148 | .sd_blksz_fw_dl = 256, |
789221ec BZ |
149 | }; |
150 | ||
3907d558 XH |
151 | static const struct btmrvl_sdio_device btmrvl_sdio_sd8887 = { |
152 | .helper = NULL, | |
153 | .firmware = "mrvl/sd8887_uapsta.bin", | |
154 | .reg = &btmrvl_reg_8887, | |
155 | .support_pscan_win_report = true, | |
156 | .sd_blksz_fw_dl = 256, | |
157 | }; | |
158 | ||
22f2efed BZ |
159 | static const struct btmrvl_sdio_device btmrvl_sdio_sd8897 = { |
160 | .helper = NULL, | |
161 | .firmware = "mrvl/sd8897_uapsta.bin", | |
1e3e492c | 162 | .reg = &btmrvl_reg_8897, |
4df82b59 | 163 | .support_pscan_win_report = true, |
22f2efed BZ |
164 | .sd_blksz_fw_dl = 256, |
165 | }; | |
166 | ||
dcf47f3b MH |
167 | static const struct sdio_device_id btmrvl_sdio_ids[] = { |
168 | /* Marvell SD8688 Bluetooth device */ | |
169 | { SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, 0x9105), | |
c675786a | 170 | .driver_data = (unsigned long) &btmrvl_sdio_sd8688 }, |
9f72c1d9 KG |
171 | /* Marvell SD8787 Bluetooth device */ |
172 | { SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, 0x911A), | |
173 | .driver_data = (unsigned long) &btmrvl_sdio_sd8787 }, | |
37ed561e BZ |
174 | /* Marvell SD8787 Bluetooth AMP device */ |
175 | { SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, 0x911B), | |
176 | .driver_data = (unsigned long) &btmrvl_sdio_sd8787 }, | |
2ac654f7 BZ |
177 | /* Marvell SD8797 Bluetooth device */ |
178 | { SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, 0x912A), | |
179 | .driver_data = (unsigned long) &btmrvl_sdio_sd8797 }, | |
3907d558 XH |
180 | /* Marvell SD8887 Bluetooth device */ |
181 | { SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, 0x9136), | |
182 | .driver_data = (unsigned long)&btmrvl_sdio_sd8887 }, | |
22f2efed BZ |
183 | /* Marvell SD8897 Bluetooth device */ |
184 | { SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, 0x912E), | |
185 | .driver_data = (unsigned long) &btmrvl_sdio_sd8897 }, | |
789221ec | 186 | |
dcf47f3b | 187 | { } /* Terminating entry */ |
789221ec BZ |
188 | }; |
189 | ||
dcf47f3b MH |
190 | MODULE_DEVICE_TABLE(sdio, btmrvl_sdio_ids); |
191 | ||
789221ec BZ |
192 | static int btmrvl_sdio_get_rx_unit(struct btmrvl_sdio_card *card) |
193 | { | |
194 | u8 reg; | |
195 | int ret; | |
196 | ||
9f72c1d9 | 197 | reg = sdio_readb(card->func, card->reg->card_rx_unit, &ret); |
789221ec BZ |
198 | if (!ret) |
199 | card->rx_unit = reg; | |
200 | ||
789221ec BZ |
201 | return ret; |
202 | } | |
203 | ||
204 | static int btmrvl_sdio_read_fw_status(struct btmrvl_sdio_card *card, u16 *dat) | |
205 | { | |
789221ec | 206 | u8 fws0, fws1; |
9374253f | 207 | int ret; |
789221ec BZ |
208 | |
209 | *dat = 0; | |
210 | ||
9f72c1d9 | 211 | fws0 = sdio_readb(card->func, card->reg->card_fw_status0, &ret); |
278be27f KV |
212 | if (ret) |
213 | return -EIO; | |
789221ec | 214 | |
9f72c1d9 | 215 | fws1 = sdio_readb(card->func, card->reg->card_fw_status1, &ret); |
9374253f | 216 | if (ret) |
789221ec | 217 | return -EIO; |
789221ec BZ |
218 | |
219 | *dat = (((u16) fws1) << 8) | fws0; | |
220 | ||
789221ec BZ |
221 | return 0; |
222 | } | |
223 | ||
224 | static int btmrvl_sdio_read_rx_len(struct btmrvl_sdio_card *card, u16 *dat) | |
225 | { | |
789221ec | 226 | u8 reg; |
9374253f | 227 | int ret; |
789221ec | 228 | |
9f72c1d9 | 229 | reg = sdio_readb(card->func, card->reg->card_rx_len, &ret); |
789221ec BZ |
230 | if (!ret) |
231 | *dat = (u16) reg << card->rx_unit; | |
232 | ||
789221ec BZ |
233 | return ret; |
234 | } | |
235 | ||
236 | static int btmrvl_sdio_enable_host_int_mask(struct btmrvl_sdio_card *card, | |
dcf47f3b | 237 | u8 mask) |
789221ec BZ |
238 | { |
239 | int ret; | |
240 | ||
9f72c1d9 | 241 | sdio_writeb(card->func, mask, card->reg->host_int_mask, &ret); |
789221ec BZ |
242 | if (ret) { |
243 | BT_ERR("Unable to enable the host interrupt!"); | |
244 | ret = -EIO; | |
245 | } | |
246 | ||
789221ec BZ |
247 | return ret; |
248 | } | |
249 | ||
250 | static int btmrvl_sdio_disable_host_int_mask(struct btmrvl_sdio_card *card, | |
dcf47f3b | 251 | u8 mask) |
789221ec | 252 | { |
789221ec | 253 | u8 host_int_mask; |
9374253f | 254 | int ret; |
789221ec | 255 | |
9f72c1d9 | 256 | host_int_mask = sdio_readb(card->func, card->reg->host_int_mask, &ret); |
9374253f MH |
257 | if (ret) |
258 | return -EIO; | |
789221ec BZ |
259 | |
260 | host_int_mask &= ~mask; | |
261 | ||
9f72c1d9 | 262 | sdio_writeb(card->func, host_int_mask, card->reg->host_int_mask, &ret); |
789221ec BZ |
263 | if (ret < 0) { |
264 | BT_ERR("Unable to disable the host interrupt!"); | |
9374253f | 265 | return -EIO; |
789221ec BZ |
266 | } |
267 | ||
9374253f | 268 | return 0; |
789221ec BZ |
269 | } |
270 | ||
271 | static int btmrvl_sdio_poll_card_status(struct btmrvl_sdio_card *card, u8 bits) | |
272 | { | |
273 | unsigned int tries; | |
789221ec | 274 | u8 status; |
9374253f | 275 | int ret; |
789221ec BZ |
276 | |
277 | for (tries = 0; tries < MAX_POLL_TRIES * 1000; tries++) { | |
9f72c1d9 | 278 | status = sdio_readb(card->func, card->reg->card_status, &ret); |
789221ec BZ |
279 | if (ret) |
280 | goto failed; | |
281 | if ((status & bits) == bits) | |
9374253f | 282 | return ret; |
789221ec BZ |
283 | |
284 | udelay(1); | |
285 | } | |
286 | ||
287 | ret = -ETIMEDOUT; | |
288 | ||
289 | failed: | |
290 | BT_ERR("FAILED! ret=%d", ret); | |
291 | ||
789221ec BZ |
292 | return ret; |
293 | } | |
294 | ||
295 | static int btmrvl_sdio_verify_fw_download(struct btmrvl_sdio_card *card, | |
dcf47f3b | 296 | int pollnum) |
789221ec | 297 | { |
789221ec | 298 | u16 firmwarestat; |
69676b1c | 299 | int tries, ret; |
789221ec | 300 | |
789221ec BZ |
301 | /* Wait for firmware to become ready */ |
302 | for (tries = 0; tries < pollnum; tries++) { | |
c1c999e2 AF |
303 | sdio_claim_host(card->func); |
304 | ret = btmrvl_sdio_read_fw_status(card, &firmwarestat); | |
305 | sdio_release_host(card->func); | |
306 | if (ret < 0) | |
789221ec BZ |
307 | continue; |
308 | ||
69676b1c AF |
309 | if (firmwarestat == FIRMWARE_READY) |
310 | return 0; | |
311 | ||
312 | msleep(10); | |
789221ec BZ |
313 | } |
314 | ||
69676b1c | 315 | return -ETIMEDOUT; |
789221ec BZ |
316 | } |
317 | ||
318 | static int btmrvl_sdio_download_helper(struct btmrvl_sdio_card *card) | |
319 | { | |
320 | const struct firmware *fw_helper = NULL; | |
321 | const u8 *helper = NULL; | |
322 | int ret; | |
323 | void *tmphlprbuf = NULL; | |
324 | int tmphlprbufsz, hlprblknow, helperlen; | |
325 | u8 *helperbuf; | |
326 | u32 tx_len; | |
327 | ||
789221ec | 328 | ret = request_firmware(&fw_helper, card->helper, |
dcf47f3b | 329 | &card->func->dev); |
789221ec BZ |
330 | if ((ret < 0) || !fw_helper) { |
331 | BT_ERR("request_firmware(helper) failed, error code = %d", | |
dcf47f3b | 332 | ret); |
789221ec BZ |
333 | ret = -ENOENT; |
334 | goto done; | |
335 | } | |
336 | ||
337 | helper = fw_helper->data; | |
338 | helperlen = fw_helper->size; | |
339 | ||
340 | BT_DBG("Downloading helper image (%d bytes), block size %d bytes", | |
dcf47f3b | 341 | helperlen, SDIO_BLOCK_SIZE); |
789221ec BZ |
342 | |
343 | tmphlprbufsz = ALIGN_SZ(BTM_UPLD_SIZE, BTSDIO_DMA_ALIGN); | |
344 | ||
f8df39f1 | 345 | tmphlprbuf = kzalloc(tmphlprbufsz, GFP_KERNEL); |
789221ec BZ |
346 | if (!tmphlprbuf) { |
347 | BT_ERR("Unable to allocate buffer for helper." | |
348 | " Terminating download"); | |
349 | ret = -ENOMEM; | |
350 | goto done; | |
351 | } | |
352 | ||
789221ec BZ |
353 | helperbuf = (u8 *) ALIGN_ADDR(tmphlprbuf, BTSDIO_DMA_ALIGN); |
354 | ||
355 | /* Perform helper data transfer */ | |
356 | tx_len = (FIRMWARE_TRANSFER_NBLOCK * SDIO_BLOCK_SIZE) | |
357 | - SDIO_HEADER_LEN; | |
358 | hlprblknow = 0; | |
359 | ||
360 | do { | |
361 | ret = btmrvl_sdio_poll_card_status(card, | |
362 | CARD_IO_READY | DN_LD_CARD_RDY); | |
363 | if (ret < 0) { | |
364 | BT_ERR("Helper download poll status timeout @ %d", | |
365 | hlprblknow); | |
366 | goto done; | |
367 | } | |
368 | ||
369 | /* Check if there is more data? */ | |
370 | if (hlprblknow >= helperlen) | |
371 | break; | |
372 | ||
373 | if (helperlen - hlprblknow < tx_len) | |
374 | tx_len = helperlen - hlprblknow; | |
375 | ||
376 | /* Little-endian */ | |
377 | helperbuf[0] = ((tx_len & 0x000000ff) >> 0); | |
378 | helperbuf[1] = ((tx_len & 0x0000ff00) >> 8); | |
379 | helperbuf[2] = ((tx_len & 0x00ff0000) >> 16); | |
380 | helperbuf[3] = ((tx_len & 0xff000000) >> 24); | |
381 | ||
382 | memcpy(&helperbuf[SDIO_HEADER_LEN], &helper[hlprblknow], | |
383 | tx_len); | |
384 | ||
385 | /* Now send the data */ | |
dcf47f3b MH |
386 | ret = sdio_writesb(card->func, card->ioport, helperbuf, |
387 | FIRMWARE_TRANSFER_NBLOCK * SDIO_BLOCK_SIZE); | |
789221ec BZ |
388 | if (ret < 0) { |
389 | BT_ERR("IO error during helper download @ %d", | |
390 | hlprblknow); | |
391 | goto done; | |
392 | } | |
393 | ||
394 | hlprblknow += tx_len; | |
395 | } while (true); | |
396 | ||
397 | BT_DBG("Transferring helper image EOF block"); | |
398 | ||
399 | memset(helperbuf, 0x0, SDIO_BLOCK_SIZE); | |
400 | ||
401 | ret = sdio_writesb(card->func, card->ioport, helperbuf, | |
dcf47f3b | 402 | SDIO_BLOCK_SIZE); |
789221ec BZ |
403 | if (ret < 0) { |
404 | BT_ERR("IO error in writing helper image EOF block"); | |
405 | goto done; | |
406 | } | |
407 | ||
408 | ret = 0; | |
409 | ||
410 | done: | |
411 | kfree(tmphlprbuf); | |
59f34fb3 | 412 | release_firmware(fw_helper); |
789221ec BZ |
413 | return ret; |
414 | } | |
415 | ||
416 | static int btmrvl_sdio_download_fw_w_helper(struct btmrvl_sdio_card *card) | |
417 | { | |
418 | const struct firmware *fw_firmware = NULL; | |
419 | const u8 *firmware = NULL; | |
420 | int firmwarelen, tmpfwbufsz, ret; | |
421 | unsigned int tries, offset; | |
422 | u8 base0, base1; | |
423 | void *tmpfwbuf = NULL; | |
424 | u8 *fwbuf; | |
9f72c1d9 | 425 | u16 len, blksz_dl = card->sd_blksz_fw_dl; |
789221ec BZ |
426 | int txlen = 0, tx_blocks = 0, count = 0; |
427 | ||
789221ec | 428 | ret = request_firmware(&fw_firmware, card->firmware, |
dcf47f3b | 429 | &card->func->dev); |
789221ec BZ |
430 | if ((ret < 0) || !fw_firmware) { |
431 | BT_ERR("request_firmware(firmware) failed, error code = %d", | |
dcf47f3b | 432 | ret); |
789221ec BZ |
433 | ret = -ENOENT; |
434 | goto done; | |
435 | } | |
436 | ||
437 | firmware = fw_firmware->data; | |
438 | firmwarelen = fw_firmware->size; | |
439 | ||
440 | BT_DBG("Downloading FW image (%d bytes)", firmwarelen); | |
441 | ||
442 | tmpfwbufsz = ALIGN_SZ(BTM_UPLD_SIZE, BTSDIO_DMA_ALIGN); | |
f8df39f1 | 443 | tmpfwbuf = kzalloc(tmpfwbufsz, GFP_KERNEL); |
789221ec BZ |
444 | if (!tmpfwbuf) { |
445 | BT_ERR("Unable to allocate buffer for firmware." | |
446 | " Terminating download"); | |
447 | ret = -ENOMEM; | |
448 | goto done; | |
449 | } | |
450 | ||
789221ec BZ |
451 | /* Ensure aligned firmware buffer */ |
452 | fwbuf = (u8 *) ALIGN_ADDR(tmpfwbuf, BTSDIO_DMA_ALIGN); | |
453 | ||
454 | /* Perform firmware data transfer */ | |
455 | offset = 0; | |
456 | do { | |
457 | ret = btmrvl_sdio_poll_card_status(card, | |
dcf47f3b | 458 | CARD_IO_READY | DN_LD_CARD_RDY); |
789221ec BZ |
459 | if (ret < 0) { |
460 | BT_ERR("FW download with helper poll status" | |
dcf47f3b | 461 | " timeout @ %d", offset); |
789221ec BZ |
462 | goto done; |
463 | } | |
464 | ||
465 | /* Check if there is more data ? */ | |
466 | if (offset >= firmwarelen) | |
467 | break; | |
468 | ||
469 | for (tries = 0; tries < MAX_POLL_TRIES; tries++) { | |
470 | base0 = sdio_readb(card->func, | |
9f72c1d9 | 471 | card->reg->sq_read_base_addr_a0, &ret); |
789221ec BZ |
472 | if (ret) { |
473 | BT_ERR("BASE0 register read failed:" | |
474 | " base0 = 0x%04X(%d)." | |
475 | " Terminating download", | |
476 | base0, base0); | |
477 | ret = -EIO; | |
478 | goto done; | |
479 | } | |
480 | base1 = sdio_readb(card->func, | |
9f72c1d9 | 481 | card->reg->sq_read_base_addr_a1, &ret); |
789221ec BZ |
482 | if (ret) { |
483 | BT_ERR("BASE1 register read failed:" | |
484 | " base1 = 0x%04X(%d)." | |
485 | " Terminating download", | |
486 | base1, base1); | |
487 | ret = -EIO; | |
488 | goto done; | |
489 | } | |
490 | ||
491 | len = (((u16) base1) << 8) | base0; | |
492 | if (len) | |
493 | break; | |
494 | ||
495 | udelay(10); | |
496 | } | |
497 | ||
498 | if (!len) | |
499 | break; | |
500 | else if (len > BTM_UPLD_SIZE) { | |
501 | BT_ERR("FW download failure @%d, invalid length %d", | |
dcf47f3b | 502 | offset, len); |
789221ec BZ |
503 | ret = -EINVAL; |
504 | goto done; | |
505 | } | |
506 | ||
507 | txlen = len; | |
508 | ||
509 | if (len & BIT(0)) { | |
510 | count++; | |
511 | if (count > MAX_WRITE_IOMEM_RETRY) { | |
512 | BT_ERR("FW download failure @%d, " | |
513 | "over max retry count", offset); | |
514 | ret = -EIO; | |
515 | goto done; | |
516 | } | |
517 | BT_ERR("FW CRC error indicated by the helper: " | |
518 | "len = 0x%04X, txlen = %d", len, txlen); | |
519 | len &= ~BIT(0); | |
520 | /* Set txlen to 0 so as to resend from same offset */ | |
521 | txlen = 0; | |
522 | } else { | |
523 | count = 0; | |
524 | ||
525 | /* Last block ? */ | |
526 | if (firmwarelen - offset < txlen) | |
527 | txlen = firmwarelen - offset; | |
528 | ||
ba34dd3d | 529 | tx_blocks = DIV_ROUND_UP(txlen, blksz_dl); |
789221ec BZ |
530 | |
531 | memcpy(fwbuf, &firmware[offset], txlen); | |
532 | } | |
533 | ||
534 | ret = sdio_writesb(card->func, card->ioport, fwbuf, | |
9f72c1d9 | 535 | tx_blocks * blksz_dl); |
789221ec BZ |
536 | |
537 | if (ret < 0) { | |
538 | BT_ERR("FW download, writesb(%d) failed @%d", | |
dcf47f3b | 539 | count, offset); |
9f72c1d9 KG |
540 | sdio_writeb(card->func, HOST_CMD53_FIN, |
541 | card->reg->cfg, &ret); | |
789221ec BZ |
542 | if (ret) |
543 | BT_ERR("writeb failed (CFG)"); | |
544 | } | |
545 | ||
546 | offset += txlen; | |
547 | } while (true); | |
548 | ||
549 | BT_DBG("FW download over, size %d bytes", offset); | |
550 | ||
551 | ret = 0; | |
552 | ||
553 | done: | |
554 | kfree(tmpfwbuf); | |
59f34fb3 | 555 | release_firmware(fw_firmware); |
789221ec BZ |
556 | return ret; |
557 | } | |
558 | ||
559 | static int btmrvl_sdio_card_to_host(struct btmrvl_private *priv) | |
560 | { | |
561 | u16 buf_len = 0; | |
42632805 | 562 | int ret, num_blocks, blksz; |
789221ec BZ |
563 | struct sk_buff *skb = NULL; |
564 | u32 type; | |
565 | u8 *payload = NULL; | |
566 | struct hci_dev *hdev = priv->btmrvl_dev.hcidev; | |
567 | struct btmrvl_sdio_card *card = priv->btmrvl_dev.card; | |
568 | ||
789221ec BZ |
569 | if (!card || !card->func) { |
570 | BT_ERR("card or function is NULL!"); | |
571 | ret = -EINVAL; | |
572 | goto exit; | |
573 | } | |
574 | ||
575 | /* Read the length of data to be transferred */ | |
576 | ret = btmrvl_sdio_read_rx_len(card, &buf_len); | |
577 | if (ret < 0) { | |
578 | BT_ERR("read rx_len failed"); | |
579 | ret = -EIO; | |
580 | goto exit; | |
581 | } | |
582 | ||
583 | blksz = SDIO_BLOCK_SIZE; | |
e678bad5 | 584 | num_blocks = DIV_ROUND_UP(buf_len, blksz); |
789221ec BZ |
585 | |
586 | if (buf_len <= SDIO_HEADER_LEN | |
42632805 | 587 | || (num_blocks * blksz) > ALLOC_BUF_SIZE) { |
789221ec BZ |
588 | BT_ERR("invalid packet length: %d", buf_len); |
589 | ret = -EINVAL; | |
590 | goto exit; | |
591 | } | |
592 | ||
593 | /* Allocate buffer */ | |
42632805 | 594 | skb = bt_skb_alloc(num_blocks * blksz + BTSDIO_DMA_ALIGN, GFP_ATOMIC); |
789221ec BZ |
595 | if (skb == NULL) { |
596 | BT_ERR("No free skb"); | |
6ea81c41 | 597 | ret = -ENOMEM; |
789221ec BZ |
598 | goto exit; |
599 | } | |
600 | ||
3318b236 BZ |
601 | if ((unsigned long) skb->data & (BTSDIO_DMA_ALIGN - 1)) { |
602 | skb_put(skb, (unsigned long) skb->data & | |
603 | (BTSDIO_DMA_ALIGN - 1)); | |
604 | skb_pull(skb, (unsigned long) skb->data & | |
605 | (BTSDIO_DMA_ALIGN - 1)); | |
789221ec BZ |
606 | } |
607 | ||
3318b236 | 608 | payload = skb->data; |
789221ec BZ |
609 | |
610 | ret = sdio_readsb(card->func, payload, card->ioport, | |
42632805 | 611 | num_blocks * blksz); |
789221ec BZ |
612 | if (ret < 0) { |
613 | BT_ERR("readsb failed: %d", ret); | |
614 | ret = -EIO; | |
615 | goto exit; | |
616 | } | |
617 | ||
618 | /* This is SDIO specific header length: byte[2][1][0], type: byte[3] | |
619 | * (HCI_COMMAND = 1, ACL_DATA = 2, SCO_DATA = 3, 0xFE = Vendor) | |
620 | */ | |
621 | ||
622 | buf_len = payload[0]; | |
9cb23dd4 AE |
623 | buf_len |= payload[1] << 8; |
624 | buf_len |= payload[2] << 16; | |
625 | ||
626 | if (buf_len > blksz * num_blocks) { | |
627 | BT_ERR("Skip incorrect packet: hdrlen %d buffer %d", | |
628 | buf_len, blksz * num_blocks); | |
629 | ret = -EIO; | |
630 | goto exit; | |
631 | } | |
632 | ||
789221ec BZ |
633 | type = payload[3]; |
634 | ||
635 | switch (type) { | |
636 | case HCI_ACLDATA_PKT: | |
637 | case HCI_SCODATA_PKT: | |
638 | case HCI_EVENT_PKT: | |
639 | bt_cb(skb)->pkt_type = type; | |
789221ec BZ |
640 | skb_put(skb, buf_len); |
641 | skb_pull(skb, SDIO_HEADER_LEN); | |
642 | ||
ea1e76a3 AE |
643 | if (type == HCI_EVENT_PKT) { |
644 | if (btmrvl_check_evtpkt(priv, skb)) | |
e1a26170 | 645 | hci_recv_frame(hdev, skb); |
2c2453f3 | 646 | } else { |
e1a26170 | 647 | hci_recv_frame(hdev, skb); |
2c2453f3 | 648 | } |
789221ec | 649 | |
789221ec BZ |
650 | hdev->stat.byte_rx += buf_len; |
651 | break; | |
652 | ||
653 | case MRVL_VENDOR_PKT: | |
654 | bt_cb(skb)->pkt_type = HCI_VENDOR_PKT; | |
789221ec BZ |
655 | skb_put(skb, buf_len); |
656 | skb_pull(skb, SDIO_HEADER_LEN); | |
657 | ||
658 | if (btmrvl_process_event(priv, skb)) | |
e1a26170 | 659 | hci_recv_frame(hdev, skb); |
789221ec BZ |
660 | |
661 | hdev->stat.byte_rx += buf_len; | |
662 | break; | |
663 | ||
664 | default: | |
af901ca1 | 665 | BT_ERR("Unknown packet type:%d", type); |
78c1b8e8 | 666 | BT_ERR("hex: %*ph", blksz * num_blocks, payload); |
789221ec BZ |
667 | |
668 | kfree_skb(skb); | |
669 | skb = NULL; | |
670 | break; | |
671 | } | |
672 | ||
673 | exit: | |
674 | if (ret) { | |
675 | hdev->stat.err_rx++; | |
7923296f | 676 | kfree_skb(skb); |
789221ec BZ |
677 | } |
678 | ||
789221ec BZ |
679 | return ret; |
680 | } | |
681 | ||
d1d10d78 | 682 | static int btmrvl_sdio_process_int_status(struct btmrvl_private *priv) |
789221ec | 683 | { |
d1d10d78 AK |
684 | ulong flags; |
685 | u8 ireg; | |
789221ec BZ |
686 | struct btmrvl_sdio_card *card = priv->btmrvl_dev.card; |
687 | ||
d1d10d78 AK |
688 | spin_lock_irqsave(&priv->driver_lock, flags); |
689 | ireg = sdio_ireg; | |
690 | sdio_ireg = 0; | |
691 | spin_unlock_irqrestore(&priv->driver_lock, flags); | |
789221ec | 692 | |
d1d10d78 AK |
693 | sdio_claim_host(card->func); |
694 | if (ireg & DN_LD_HOST_INT_STATUS) { | |
789221ec BZ |
695 | if (priv->btmrvl_dev.tx_dnld_rdy) |
696 | BT_DBG("tx_done already received: " | |
d1d10d78 | 697 | " int_status=0x%x", ireg); |
789221ec BZ |
698 | else |
699 | priv->btmrvl_dev.tx_dnld_rdy = true; | |
700 | } | |
701 | ||
d1d10d78 | 702 | if (ireg & UP_LD_HOST_INT_STATUS) |
789221ec BZ |
703 | btmrvl_sdio_card_to_host(priv); |
704 | ||
d1d10d78 | 705 | sdio_release_host(card->func); |
789221ec | 706 | |
d1d10d78 | 707 | return 0; |
789221ec BZ |
708 | } |
709 | ||
0d367408 BZ |
710 | static int btmrvl_sdio_read_to_clear(struct btmrvl_sdio_card *card, u8 *ireg) |
711 | { | |
712 | struct btmrvl_adapter *adapter = card->priv->adapter; | |
713 | int ret; | |
714 | ||
715 | ret = sdio_readsb(card->func, adapter->hw_regs, 0, SDIO_BLOCK_SIZE); | |
716 | if (ret) { | |
717 | BT_ERR("sdio_readsb: read int hw_regs failed: %d", ret); | |
718 | return ret; | |
719 | } | |
720 | ||
721 | *ireg = adapter->hw_regs[card->reg->host_intstatus]; | |
722 | BT_DBG("hw_regs[%#x]=%#x", card->reg->host_intstatus, *ireg); | |
723 | ||
724 | return 0; | |
725 | } | |
726 | ||
8af4840a BZ |
727 | static int btmrvl_sdio_write_to_clear(struct btmrvl_sdio_card *card, u8 *ireg) |
728 | { | |
729 | int ret; | |
730 | ||
731 | *ireg = sdio_readb(card->func, card->reg->host_intstatus, &ret); | |
732 | if (ret) { | |
733 | BT_ERR("sdio_readb: read int status failed: %d", ret); | |
734 | return ret; | |
735 | } | |
736 | ||
737 | if (*ireg) { | |
738 | /* | |
739 | * DN_LD_HOST_INT_STATUS and/or UP_LD_HOST_INT_STATUS | |
740 | * Clear the interrupt status register and re-enable the | |
741 | * interrupt. | |
742 | */ | |
743 | BT_DBG("int_status = 0x%x", *ireg); | |
744 | ||
745 | sdio_writeb(card->func, ~(*ireg) & (DN_LD_HOST_INT_STATUS | | |
746 | UP_LD_HOST_INT_STATUS), | |
747 | card->reg->host_intstatus, &ret); | |
748 | if (ret) { | |
749 | BT_ERR("sdio_writeb: clear int status failed: %d", ret); | |
750 | return ret; | |
751 | } | |
752 | } | |
753 | ||
754 | return 0; | |
755 | } | |
756 | ||
789221ec BZ |
757 | static void btmrvl_sdio_interrupt(struct sdio_func *func) |
758 | { | |
759 | struct btmrvl_private *priv; | |
789221ec | 760 | struct btmrvl_sdio_card *card; |
d1d10d78 | 761 | ulong flags; |
789221ec | 762 | u8 ireg = 0; |
d1d10d78 | 763 | int ret; |
789221ec | 764 | |
789221ec | 765 | card = sdio_get_drvdata(func); |
d1d10d78 AK |
766 | if (!card || !card->priv) { |
767 | BT_ERR("sbi_interrupt(%p) card or priv is " | |
768 | "NULL, card=%p\n", func, card); | |
769 | return; | |
770 | } | |
789221ec | 771 | |
d1d10d78 | 772 | priv = card->priv; |
789221ec | 773 | |
0d367408 BZ |
774 | if (card->reg->int_read_to_clear) |
775 | ret = btmrvl_sdio_read_to_clear(card, &ireg); | |
776 | else | |
777 | ret = btmrvl_sdio_write_to_clear(card, &ireg); | |
778 | ||
8af4840a | 779 | if (ret) |
d1d10d78 | 780 | return; |
d1d10d78 AK |
781 | |
782 | spin_lock_irqsave(&priv->driver_lock, flags); | |
783 | sdio_ireg |= ireg; | |
784 | spin_unlock_irqrestore(&priv->driver_lock, flags); | |
785 | ||
786 | btmrvl_interrupt(priv); | |
789221ec BZ |
787 | } |
788 | ||
789 | static int btmrvl_sdio_register_dev(struct btmrvl_sdio_card *card) | |
790 | { | |
789221ec | 791 | struct sdio_func *func; |
dcf47f3b MH |
792 | u8 reg; |
793 | int ret = 0; | |
789221ec | 794 | |
789221ec BZ |
795 | if (!card || !card->func) { |
796 | BT_ERR("Error: card or function is NULL!"); | |
797 | ret = -EINVAL; | |
798 | goto failed; | |
799 | } | |
800 | ||
801 | func = card->func; | |
802 | ||
789221ec BZ |
803 | sdio_claim_host(func); |
804 | ||
805 | ret = sdio_enable_func(func); | |
806 | if (ret) { | |
807 | BT_ERR("sdio_enable_func() failed: ret=%d", ret); | |
808 | ret = -EIO; | |
809 | goto release_host; | |
810 | } | |
811 | ||
812 | ret = sdio_claim_irq(func, btmrvl_sdio_interrupt); | |
813 | if (ret) { | |
814 | BT_ERR("sdio_claim_irq failed: ret=%d", ret); | |
815 | ret = -EIO; | |
816 | goto disable_func; | |
817 | } | |
818 | ||
819 | ret = sdio_set_block_size(card->func, SDIO_BLOCK_SIZE); | |
820 | if (ret) { | |
821 | BT_ERR("cannot set SDIO block size"); | |
822 | ret = -EIO; | |
823 | goto release_irq; | |
824 | } | |
825 | ||
9f72c1d9 | 826 | reg = sdio_readb(func, card->reg->io_port_0, &ret); |
789221ec BZ |
827 | if (ret < 0) { |
828 | ret = -EIO; | |
829 | goto release_irq; | |
830 | } | |
831 | ||
832 | card->ioport = reg; | |
833 | ||
9f72c1d9 | 834 | reg = sdio_readb(func, card->reg->io_port_1, &ret); |
789221ec BZ |
835 | if (ret < 0) { |
836 | ret = -EIO; | |
837 | goto release_irq; | |
838 | } | |
839 | ||
840 | card->ioport |= (reg << 8); | |
841 | ||
9f72c1d9 | 842 | reg = sdio_readb(func, card->reg->io_port_2, &ret); |
789221ec BZ |
843 | if (ret < 0) { |
844 | ret = -EIO; | |
845 | goto release_irq; | |
846 | } | |
847 | ||
848 | card->ioport |= (reg << 16); | |
849 | ||
850 | BT_DBG("SDIO FUNC%d IO port: 0x%x", func->num, card->ioport); | |
851 | ||
0d367408 BZ |
852 | if (card->reg->int_read_to_clear) { |
853 | reg = sdio_readb(func, card->reg->host_int_rsr, &ret); | |
854 | if (ret < 0) { | |
855 | ret = -EIO; | |
856 | goto release_irq; | |
857 | } | |
858 | sdio_writeb(func, reg | 0x3f, card->reg->host_int_rsr, &ret); | |
859 | if (ret < 0) { | |
860 | ret = -EIO; | |
861 | goto release_irq; | |
862 | } | |
863 | ||
864 | reg = sdio_readb(func, card->reg->card_misc_cfg, &ret); | |
865 | if (ret < 0) { | |
866 | ret = -EIO; | |
867 | goto release_irq; | |
868 | } | |
869 | sdio_writeb(func, reg | 0x10, card->reg->card_misc_cfg, &ret); | |
870 | if (ret < 0) { | |
871 | ret = -EIO; | |
872 | goto release_irq; | |
873 | } | |
874 | } | |
875 | ||
789221ec BZ |
876 | sdio_set_drvdata(func, card); |
877 | ||
878 | sdio_release_host(func); | |
879 | ||
789221ec BZ |
880 | return 0; |
881 | ||
882 | release_irq: | |
883 | sdio_release_irq(func); | |
884 | ||
885 | disable_func: | |
886 | sdio_disable_func(func); | |
887 | ||
888 | release_host: | |
889 | sdio_release_host(func); | |
890 | ||
891 | failed: | |
789221ec BZ |
892 | return ret; |
893 | } | |
894 | ||
895 | static int btmrvl_sdio_unregister_dev(struct btmrvl_sdio_card *card) | |
896 | { | |
789221ec BZ |
897 | if (card && card->func) { |
898 | sdio_claim_host(card->func); | |
899 | sdio_release_irq(card->func); | |
900 | sdio_disable_func(card->func); | |
901 | sdio_release_host(card->func); | |
902 | sdio_set_drvdata(card->func, NULL); | |
903 | } | |
904 | ||
789221ec BZ |
905 | return 0; |
906 | } | |
907 | ||
908 | static int btmrvl_sdio_enable_host_int(struct btmrvl_sdio_card *card) | |
909 | { | |
910 | int ret; | |
911 | ||
9374253f | 912 | if (!card || !card->func) |
789221ec | 913 | return -EINVAL; |
789221ec BZ |
914 | |
915 | sdio_claim_host(card->func); | |
916 | ||
917 | ret = btmrvl_sdio_enable_host_int_mask(card, HIM_ENABLE); | |
918 | ||
919 | btmrvl_sdio_get_rx_unit(card); | |
920 | ||
921 | sdio_release_host(card->func); | |
922 | ||
789221ec BZ |
923 | return ret; |
924 | } | |
925 | ||
926 | static int btmrvl_sdio_disable_host_int(struct btmrvl_sdio_card *card) | |
927 | { | |
928 | int ret; | |
929 | ||
9374253f | 930 | if (!card || !card->func) |
789221ec | 931 | return -EINVAL; |
789221ec BZ |
932 | |
933 | sdio_claim_host(card->func); | |
934 | ||
935 | ret = btmrvl_sdio_disable_host_int_mask(card, HIM_DISABLE); | |
936 | ||
937 | sdio_release_host(card->func); | |
938 | ||
789221ec BZ |
939 | return ret; |
940 | } | |
941 | ||
942 | static int btmrvl_sdio_host_to_card(struct btmrvl_private *priv, | |
943 | u8 *payload, u16 nb) | |
944 | { | |
945 | struct btmrvl_sdio_card *card = priv->btmrvl_dev.card; | |
946 | int ret = 0; | |
947 | int buf_block_len; | |
948 | int blksz; | |
949 | int i = 0; | |
950 | u8 *buf = NULL; | |
951 | void *tmpbuf = NULL; | |
952 | int tmpbufsz; | |
953 | ||
789221ec BZ |
954 | if (!card || !card->func) { |
955 | BT_ERR("card or function is NULL!"); | |
789221ec BZ |
956 | return -EINVAL; |
957 | } | |
958 | ||
959 | buf = payload; | |
3318b236 | 960 | if ((unsigned long) payload & (BTSDIO_DMA_ALIGN - 1)) { |
789221ec | 961 | tmpbufsz = ALIGN_SZ(nb, BTSDIO_DMA_ALIGN); |
5959809d JL |
962 | tmpbuf = kzalloc(tmpbufsz, GFP_KERNEL); |
963 | if (!tmpbuf) | |
964 | return -ENOMEM; | |
789221ec BZ |
965 | buf = (u8 *) ALIGN_ADDR(tmpbuf, BTSDIO_DMA_ALIGN); |
966 | memcpy(buf, payload, nb); | |
967 | } | |
968 | ||
969 | blksz = SDIO_BLOCK_SIZE; | |
ba34dd3d | 970 | buf_block_len = DIV_ROUND_UP(nb, blksz); |
789221ec BZ |
971 | |
972 | sdio_claim_host(card->func); | |
973 | ||
974 | do { | |
975 | /* Transfer data to card */ | |
976 | ret = sdio_writesb(card->func, card->ioport, buf, | |
977 | buf_block_len * blksz); | |
978 | if (ret < 0) { | |
979 | i++; | |
980 | BT_ERR("i=%d writesb failed: %d", i, ret); | |
78c1b8e8 | 981 | BT_ERR("hex: %*ph", nb, payload); |
789221ec BZ |
982 | ret = -EIO; |
983 | if (i > MAX_WRITE_IOMEM_RETRY) | |
984 | goto exit; | |
985 | } | |
986 | } while (ret); | |
987 | ||
988 | priv->btmrvl_dev.tx_dnld_rdy = false; | |
989 | ||
990 | exit: | |
991 | sdio_release_host(card->func); | |
88d1a0cf | 992 | kfree(tmpbuf); |
789221ec | 993 | |
789221ec BZ |
994 | return ret; |
995 | } | |
996 | ||
997 | static int btmrvl_sdio_download_fw(struct btmrvl_sdio_card *card) | |
998 | { | |
faff7f74 | 999 | int ret; |
9f72c1d9 KG |
1000 | u8 fws0; |
1001 | int pollnum = MAX_POLL_TRIES; | |
789221ec | 1002 | |
789221ec BZ |
1003 | if (!card || !card->func) { |
1004 | BT_ERR("card or function is NULL!"); | |
789221ec BZ |
1005 | return -EINVAL; |
1006 | } | |
789221ec BZ |
1007 | |
1008 | if (!btmrvl_sdio_verify_fw_download(card, 1)) { | |
1009 | BT_DBG("Firmware already downloaded!"); | |
c1c999e2 | 1010 | return 0; |
789221ec BZ |
1011 | } |
1012 | ||
c1c999e2 AF |
1013 | sdio_claim_host(card->func); |
1014 | ||
9f72c1d9 KG |
1015 | /* Check if other function driver is downloading the firmware */ |
1016 | fws0 = sdio_readb(card->func, card->reg->card_fw_status0, &ret); | |
789221ec | 1017 | if (ret) { |
9f72c1d9 | 1018 | BT_ERR("Failed to read FW downloading status!"); |
789221ec BZ |
1019 | ret = -EIO; |
1020 | goto done; | |
1021 | } | |
9f72c1d9 KG |
1022 | if (fws0) { |
1023 | BT_DBG("BT not the winner (%#x). Skip FW downloading", fws0); | |
1024 | ||
1025 | /* Give other function more time to download the firmware */ | |
1026 | pollnum *= 10; | |
1027 | } else { | |
1028 | if (card->helper) { | |
1029 | ret = btmrvl_sdio_download_helper(card); | |
1030 | if (ret) { | |
1031 | BT_ERR("Failed to download helper!"); | |
1032 | ret = -EIO; | |
1033 | goto done; | |
1034 | } | |
1035 | } | |
789221ec | 1036 | |
9f72c1d9 KG |
1037 | if (btmrvl_sdio_download_fw_w_helper(card)) { |
1038 | BT_ERR("Failed to download firmware!"); | |
1039 | ret = -EIO; | |
1040 | goto done; | |
1041 | } | |
789221ec BZ |
1042 | } |
1043 | ||
c1c999e2 AF |
1044 | sdio_release_host(card->func); |
1045 | ||
69676b1c AF |
1046 | /* |
1047 | * winner or not, with this test the FW synchronizes when the | |
1048 | * module can continue its initialization | |
1049 | */ | |
9f72c1d9 | 1050 | if (btmrvl_sdio_verify_fw_download(card, pollnum)) { |
789221ec | 1051 | BT_ERR("FW failed to be active in time!"); |
c1c999e2 | 1052 | return -ETIMEDOUT; |
789221ec BZ |
1053 | } |
1054 | ||
c1c999e2 AF |
1055 | return 0; |
1056 | ||
789221ec BZ |
1057 | done: |
1058 | sdio_release_host(card->func); | |
789221ec BZ |
1059 | return ret; |
1060 | } | |
1061 | ||
1062 | static int btmrvl_sdio_wakeup_fw(struct btmrvl_private *priv) | |
1063 | { | |
1064 | struct btmrvl_sdio_card *card = priv->btmrvl_dev.card; | |
1065 | int ret = 0; | |
1066 | ||
789221ec BZ |
1067 | if (!card || !card->func) { |
1068 | BT_ERR("card or function is NULL!"); | |
789221ec BZ |
1069 | return -EINVAL; |
1070 | } | |
1071 | ||
1072 | sdio_claim_host(card->func); | |
1073 | ||
9f72c1d9 | 1074 | sdio_writeb(card->func, HOST_POWER_UP, card->reg->cfg, &ret); |
789221ec BZ |
1075 | |
1076 | sdio_release_host(card->func); | |
1077 | ||
1078 | BT_DBG("wake up firmware"); | |
1079 | ||
789221ec BZ |
1080 | return ret; |
1081 | } | |
1082 | ||
1083 | static int btmrvl_sdio_probe(struct sdio_func *func, | |
dcf47f3b | 1084 | const struct sdio_device_id *id) |
789221ec BZ |
1085 | { |
1086 | int ret = 0; | |
1087 | struct btmrvl_private *priv = NULL; | |
1088 | struct btmrvl_sdio_card *card = NULL; | |
1089 | ||
789221ec BZ |
1090 | BT_INFO("vendor=0x%x, device=0x%x, class=%d, fn=%d", |
1091 | id->vendor, id->device, id->class, func->num); | |
1092 | ||
eb17ea3b SK |
1093 | card = devm_kzalloc(&func->dev, sizeof(*card), GFP_KERNEL); |
1094 | if (!card) | |
1095 | return -ENOMEM; | |
789221ec BZ |
1096 | |
1097 | card->func = func; | |
1098 | ||
dcf47f3b MH |
1099 | if (id->driver_data) { |
1100 | struct btmrvl_sdio_device *data = (void *) id->driver_data; | |
9f72c1d9 | 1101 | card->helper = data->helper; |
dcf47f3b | 1102 | card->firmware = data->firmware; |
9f72c1d9 KG |
1103 | card->reg = data->reg; |
1104 | card->sd_blksz_fw_dl = data->sd_blksz_fw_dl; | |
4df82b59 | 1105 | card->support_pscan_win_report = data->support_pscan_win_report; |
dcf47f3b MH |
1106 | } |
1107 | ||
789221ec BZ |
1108 | if (btmrvl_sdio_register_dev(card) < 0) { |
1109 | BT_ERR("Failed to register BT device!"); | |
eb17ea3b | 1110 | return -ENODEV; |
789221ec BZ |
1111 | } |
1112 | ||
1113 | /* Disable the interrupts on the card */ | |
1114 | btmrvl_sdio_disable_host_int(card); | |
1115 | ||
1116 | if (btmrvl_sdio_download_fw(card)) { | |
1117 | BT_ERR("Downloading firmware failed!"); | |
1118 | ret = -ENODEV; | |
1119 | goto unreg_dev; | |
1120 | } | |
1121 | ||
789221ec BZ |
1122 | btmrvl_sdio_enable_host_int(card); |
1123 | ||
1124 | priv = btmrvl_add_card(card); | |
1125 | if (!priv) { | |
1126 | BT_ERR("Initializing card failed!"); | |
1127 | ret = -ENODEV; | |
1128 | goto disable_host_int; | |
1129 | } | |
1130 | ||
1131 | card->priv = priv; | |
1132 | ||
1133 | /* Initialize the interface specific function pointers */ | |
1134 | priv->hw_host_to_card = btmrvl_sdio_host_to_card; | |
1135 | priv->hw_wakeup_firmware = btmrvl_sdio_wakeup_fw; | |
d1d10d78 | 1136 | priv->hw_process_int_status = btmrvl_sdio_process_int_status; |
789221ec | 1137 | |
64061607 BZ |
1138 | if (btmrvl_register_hdev(priv)) { |
1139 | BT_ERR("Register hdev failed!"); | |
1140 | ret = -ENODEV; | |
1141 | goto disable_host_int; | |
1142 | } | |
1143 | ||
789221ec BZ |
1144 | return 0; |
1145 | ||
1146 | disable_host_int: | |
1147 | btmrvl_sdio_disable_host_int(card); | |
1148 | unreg_dev: | |
1149 | btmrvl_sdio_unregister_dev(card); | |
789221ec BZ |
1150 | return ret; |
1151 | } | |
1152 | ||
1153 | static void btmrvl_sdio_remove(struct sdio_func *func) | |
1154 | { | |
1155 | struct btmrvl_sdio_card *card; | |
1156 | ||
789221ec BZ |
1157 | if (func) { |
1158 | card = sdio_get_drvdata(func); | |
1159 | if (card) { | |
1160 | /* Send SHUTDOWN command & disable interrupt | |
1161 | * if user removes the module. | |
1162 | */ | |
1163 | if (user_rmmod) { | |
1164 | btmrvl_send_module_cfg_cmd(card->priv, | |
1165 | MODULE_SHUTDOWN_REQ); | |
1166 | btmrvl_sdio_disable_host_int(card); | |
1167 | } | |
1168 | BT_DBG("unregester dev"); | |
1169 | btmrvl_sdio_unregister_dev(card); | |
1170 | btmrvl_remove_card(card->priv); | |
789221ec BZ |
1171 | } |
1172 | } | |
789221ec BZ |
1173 | } |
1174 | ||
ba54a16f AK |
1175 | static int btmrvl_sdio_suspend(struct device *dev) |
1176 | { | |
1177 | struct sdio_func *func = dev_to_sdio_func(dev); | |
1178 | struct btmrvl_sdio_card *card; | |
1179 | struct btmrvl_private *priv; | |
1180 | mmc_pm_flag_t pm_flags; | |
1181 | struct hci_dev *hcidev; | |
1182 | ||
1183 | if (func) { | |
1184 | pm_flags = sdio_get_host_pm_caps(func); | |
1185 | BT_DBG("%s: suspend: PM flags = 0x%x", sdio_func_id(func), | |
1186 | pm_flags); | |
1187 | if (!(pm_flags & MMC_PM_KEEP_POWER)) { | |
1188 | BT_ERR("%s: cannot remain alive while suspended", | |
1189 | sdio_func_id(func)); | |
1190 | return -ENOSYS; | |
1191 | } | |
1192 | card = sdio_get_drvdata(func); | |
1193 | if (!card || !card->priv) { | |
1194 | BT_ERR("card or priv structure is not valid"); | |
1195 | return 0; | |
1196 | } | |
1197 | } else { | |
1198 | BT_ERR("sdio_func is not specified"); | |
1199 | return 0; | |
1200 | } | |
1201 | ||
1202 | priv = card->priv; | |
5bf8a748 CRL |
1203 | hcidev = priv->btmrvl_dev.hcidev; |
1204 | BT_DBG("%s: SDIO suspend", hcidev->name); | |
1205 | hci_suspend_dev(hcidev); | |
1206 | skb_queue_purge(&priv->adapter->tx_queue); | |
ba54a16f AK |
1207 | |
1208 | if (priv->adapter->hs_state != HS_ACTIVATED) { | |
1209 | if (btmrvl_enable_hs(priv)) { | |
1210 | BT_ERR("HS not actived, suspend failed!"); | |
1211 | return -EBUSY; | |
1212 | } | |
1213 | } | |
ba54a16f AK |
1214 | |
1215 | priv->adapter->is_suspended = true; | |
1216 | ||
1217 | /* We will keep the power when hs enabled successfully */ | |
1218 | if (priv->adapter->hs_state == HS_ACTIVATED) { | |
1219 | BT_DBG("suspend with MMC_PM_KEEP_POWER"); | |
1220 | return sdio_set_host_pm_flags(func, MMC_PM_KEEP_POWER); | |
1221 | } else { | |
1222 | BT_DBG("suspend without MMC_PM_KEEP_POWER"); | |
1223 | return 0; | |
1224 | } | |
1225 | } | |
1226 | ||
1227 | static int btmrvl_sdio_resume(struct device *dev) | |
1228 | { | |
1229 | struct sdio_func *func = dev_to_sdio_func(dev); | |
1230 | struct btmrvl_sdio_card *card; | |
1231 | struct btmrvl_private *priv; | |
1232 | mmc_pm_flag_t pm_flags; | |
1233 | struct hci_dev *hcidev; | |
1234 | ||
1235 | if (func) { | |
1236 | pm_flags = sdio_get_host_pm_caps(func); | |
1237 | BT_DBG("%s: resume: PM flags = 0x%x", sdio_func_id(func), | |
1238 | pm_flags); | |
1239 | card = sdio_get_drvdata(func); | |
1240 | if (!card || !card->priv) { | |
1241 | BT_ERR("card or priv structure is not valid"); | |
1242 | return 0; | |
1243 | } | |
1244 | } else { | |
1245 | BT_ERR("sdio_func is not specified"); | |
1246 | return 0; | |
1247 | } | |
1248 | priv = card->priv; | |
1249 | ||
1250 | if (!priv->adapter->is_suspended) { | |
1251 | BT_DBG("device already resumed"); | |
1252 | return 0; | |
1253 | } | |
1254 | ||
ba54a16f AK |
1255 | priv->hw_wakeup_firmware(priv); |
1256 | priv->adapter->hs_state = HS_DEACTIVATED; | |
5bf8a748 | 1257 | hcidev = priv->btmrvl_dev.hcidev; |
ba54a16f | 1258 | BT_DBG("%s: HS DEACTIVATED in resume!", hcidev->name); |
5bf8a748 CRL |
1259 | priv->adapter->is_suspended = false; |
1260 | BT_DBG("%s: SDIO resume", hcidev->name); | |
1261 | hci_resume_dev(hcidev); | |
ba54a16f AK |
1262 | |
1263 | return 0; | |
1264 | } | |
1265 | ||
1266 | static const struct dev_pm_ops btmrvl_sdio_pm_ops = { | |
1267 | .suspend = btmrvl_sdio_suspend, | |
1268 | .resume = btmrvl_sdio_resume, | |
1269 | }; | |
1270 | ||
789221ec BZ |
1271 | static struct sdio_driver bt_mrvl_sdio = { |
1272 | .name = "btmrvl_sdio", | |
1273 | .id_table = btmrvl_sdio_ids, | |
1274 | .probe = btmrvl_sdio_probe, | |
1275 | .remove = btmrvl_sdio_remove, | |
ba54a16f AK |
1276 | .drv = { |
1277 | .owner = THIS_MODULE, | |
1278 | .pm = &btmrvl_sdio_pm_ops, | |
1279 | } | |
789221ec BZ |
1280 | }; |
1281 | ||
8e5b2308 | 1282 | static int __init btmrvl_sdio_init_module(void) |
789221ec | 1283 | { |
789221ec BZ |
1284 | if (sdio_register_driver(&bt_mrvl_sdio) != 0) { |
1285 | BT_ERR("SDIO Driver Registration Failed"); | |
789221ec BZ |
1286 | return -ENODEV; |
1287 | } | |
1288 | ||
1289 | /* Clear the flag in case user removes the card. */ | |
1290 | user_rmmod = 0; | |
1291 | ||
789221ec BZ |
1292 | return 0; |
1293 | } | |
1294 | ||
8e5b2308 | 1295 | static void __exit btmrvl_sdio_exit_module(void) |
789221ec | 1296 | { |
789221ec BZ |
1297 | /* Set the flag as user is removing this module. */ |
1298 | user_rmmod = 1; | |
1299 | ||
1300 | sdio_unregister_driver(&bt_mrvl_sdio); | |
789221ec BZ |
1301 | } |
1302 | ||
1303 | module_init(btmrvl_sdio_init_module); | |
1304 | module_exit(btmrvl_sdio_exit_module); | |
1305 | ||
1306 | MODULE_AUTHOR("Marvell International Ltd."); | |
9666fb35 | 1307 | MODULE_DESCRIPTION("Marvell BT-over-SDIO driver ver " VERSION); |
789221ec BZ |
1308 | MODULE_VERSION(VERSION); |
1309 | MODULE_LICENSE("GPL v2"); | |
77189df4 LR |
1310 | MODULE_FIRMWARE("mrvl/sd8688_helper.bin"); |
1311 | MODULE_FIRMWARE("mrvl/sd8688.bin"); | |
9f72c1d9 | 1312 | MODULE_FIRMWARE("mrvl/sd8787_uapsta.bin"); |
2ac654f7 | 1313 | MODULE_FIRMWARE("mrvl/sd8797_uapsta.bin"); |
3907d558 | 1314 | MODULE_FIRMWARE("mrvl/sd8887_uapsta.bin"); |
22f2efed | 1315 | MODULE_FIRMWARE("mrvl/sd8897_uapsta.bin"); |