btmrvl_sdio.c 42 KB

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  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. #include <linux/firmware.h>
  21. #include <linux/slab.h>
  22. #include <linux/suspend.h>
  23. #include <linux/mmc/sdio_ids.h>
  24. #include <linux/mmc/sdio_func.h>
  25. #include <linux/module.h>
  26. #include <linux/devcoredump.h>
  27. #include <net/bluetooth/bluetooth.h>
  28. #include <net/bluetooth/hci_core.h>
  29. #include "btmrvl_drv.h"
  30. #include "btmrvl_sdio.h"
  31. #define VERSION "1.0"
  32. static struct memory_type_mapping mem_type_mapping_tbl[] = {
  33. {"ITCM", NULL, 0, 0xF0},
  34. {"DTCM", NULL, 0, 0xF1},
  35. {"SQRAM", NULL, 0, 0xF2},
  36. {"APU", NULL, 0, 0xF3},
  37. {"CIU", NULL, 0, 0xF4},
  38. {"ICU", NULL, 0, 0xF5},
  39. {"MAC", NULL, 0, 0xF6},
  40. {"EXT7", NULL, 0, 0xF7},
  41. {"EXT8", NULL, 0, 0xF8},
  42. {"EXT9", NULL, 0, 0xF9},
  43. {"EXT10", NULL, 0, 0xFA},
  44. {"EXT11", NULL, 0, 0xFB},
  45. {"EXT12", NULL, 0, 0xFC},
  46. {"EXT13", NULL, 0, 0xFD},
  47. {"EXTLAST", NULL, 0, 0xFE},
  48. };
  49. static const struct of_device_id btmrvl_sdio_of_match_table[] = {
  50. { .compatible = "marvell,sd8897-bt" },
  51. { .compatible = "marvell,sd8997-bt" },
  52. { }
  53. };
  54. static irqreturn_t btmrvl_wake_irq_bt(int irq, void *priv)
  55. {
  56. struct btmrvl_sdio_card *card = priv;
  57. struct device *dev = &card->func->dev;
  58. struct btmrvl_plt_wake_cfg *cfg = card->plt_wake_cfg;
  59. dev_info(dev, "wake by bt\n");
  60. cfg->wake_by_bt = true;
  61. disable_irq_nosync(irq);
  62. pm_wakeup_event(dev, 0);
  63. pm_system_wakeup();
  64. return IRQ_HANDLED;
  65. }
  66. /* This function parses device tree node using mmc subnode devicetree API.
  67. * The device node is saved in card->plt_of_node.
  68. * If the device tree node exists and includes interrupts attributes, this
  69. * function will request platform specific wakeup interrupt.
  70. */
  71. static int btmrvl_sdio_probe_of(struct device *dev,
  72. struct btmrvl_sdio_card *card)
  73. {
  74. struct btmrvl_plt_wake_cfg *cfg;
  75. int ret;
  76. if (!dev->of_node ||
  77. !of_match_node(btmrvl_sdio_of_match_table, dev->of_node)) {
  78. dev_info(dev, "sdio device tree data not available\n");
  79. return -1;
  80. }
  81. card->plt_of_node = dev->of_node;
  82. card->plt_wake_cfg = devm_kzalloc(dev, sizeof(*card->plt_wake_cfg),
  83. GFP_KERNEL);
  84. cfg = card->plt_wake_cfg;
  85. if (cfg && card->plt_of_node) {
  86. cfg->irq_bt = irq_of_parse_and_map(card->plt_of_node, 0);
  87. if (!cfg->irq_bt) {
  88. dev_err(dev, "fail to parse irq_bt from device tree\n");
  89. cfg->irq_bt = -1;
  90. } else {
  91. ret = devm_request_irq(dev, cfg->irq_bt,
  92. btmrvl_wake_irq_bt,
  93. 0, "bt_wake", card);
  94. if (ret) {
  95. dev_err(dev,
  96. "Failed to request irq_bt %d (%d)\n",
  97. cfg->irq_bt, ret);
  98. }
  99. /* Configure wakeup (enabled by default) */
  100. device_init_wakeup(dev, true);
  101. disable_irq(cfg->irq_bt);
  102. }
  103. }
  104. return 0;
  105. }
  106. /* The btmrvl_sdio_remove() callback function is called
  107. * when user removes this module from kernel space or ejects
  108. * the card from the slot. The driver handles these 2 cases
  109. * differently.
  110. * If the user is removing the module, a MODULE_SHUTDOWN_REQ
  111. * command is sent to firmware and interrupt will be disabled.
  112. * If the card is removed, there is no need to send command
  113. * or disable interrupt.
  114. *
  115. * The variable 'user_rmmod' is used to distinguish these two
  116. * scenarios. This flag is initialized as FALSE in case the card
  117. * is removed, and will be set to TRUE for module removal when
  118. * module_exit function is called.
  119. */
  120. static u8 user_rmmod;
  121. static u8 sdio_ireg;
  122. static const struct btmrvl_sdio_card_reg btmrvl_reg_8688 = {
  123. .cfg = 0x03,
  124. .host_int_mask = 0x04,
  125. .host_intstatus = 0x05,
  126. .card_status = 0x20,
  127. .sq_read_base_addr_a0 = 0x10,
  128. .sq_read_base_addr_a1 = 0x11,
  129. .card_fw_status0 = 0x40,
  130. .card_fw_status1 = 0x41,
  131. .card_rx_len = 0x42,
  132. .card_rx_unit = 0x43,
  133. .io_port_0 = 0x00,
  134. .io_port_1 = 0x01,
  135. .io_port_2 = 0x02,
  136. .int_read_to_clear = false,
  137. };
  138. static const struct btmrvl_sdio_card_reg btmrvl_reg_87xx = {
  139. .cfg = 0x00,
  140. .host_int_mask = 0x02,
  141. .host_intstatus = 0x03,
  142. .card_status = 0x30,
  143. .sq_read_base_addr_a0 = 0x40,
  144. .sq_read_base_addr_a1 = 0x41,
  145. .card_revision = 0x5c,
  146. .card_fw_status0 = 0x60,
  147. .card_fw_status1 = 0x61,
  148. .card_rx_len = 0x62,
  149. .card_rx_unit = 0x63,
  150. .io_port_0 = 0x78,
  151. .io_port_1 = 0x79,
  152. .io_port_2 = 0x7a,
  153. .int_read_to_clear = false,
  154. };
  155. static const struct btmrvl_sdio_card_reg btmrvl_reg_8887 = {
  156. .cfg = 0x00,
  157. .host_int_mask = 0x08,
  158. .host_intstatus = 0x0C,
  159. .card_status = 0x5C,
  160. .sq_read_base_addr_a0 = 0x6C,
  161. .sq_read_base_addr_a1 = 0x6D,
  162. .card_revision = 0xC8,
  163. .card_fw_status0 = 0x88,
  164. .card_fw_status1 = 0x89,
  165. .card_rx_len = 0x8A,
  166. .card_rx_unit = 0x8B,
  167. .io_port_0 = 0xE4,
  168. .io_port_1 = 0xE5,
  169. .io_port_2 = 0xE6,
  170. .int_read_to_clear = true,
  171. .host_int_rsr = 0x04,
  172. .card_misc_cfg = 0xD8,
  173. };
  174. static const struct btmrvl_sdio_card_reg btmrvl_reg_8897 = {
  175. .cfg = 0x00,
  176. .host_int_mask = 0x02,
  177. .host_intstatus = 0x03,
  178. .card_status = 0x50,
  179. .sq_read_base_addr_a0 = 0x60,
  180. .sq_read_base_addr_a1 = 0x61,
  181. .card_revision = 0xbc,
  182. .card_fw_status0 = 0xc0,
  183. .card_fw_status1 = 0xc1,
  184. .card_rx_len = 0xc2,
  185. .card_rx_unit = 0xc3,
  186. .io_port_0 = 0xd8,
  187. .io_port_1 = 0xd9,
  188. .io_port_2 = 0xda,
  189. .int_read_to_clear = true,
  190. .host_int_rsr = 0x01,
  191. .card_misc_cfg = 0xcc,
  192. .fw_dump_ctrl = 0xe2,
  193. .fw_dump_start = 0xe3,
  194. .fw_dump_end = 0xea,
  195. };
  196. static const struct btmrvl_sdio_card_reg btmrvl_reg_89xx = {
  197. .cfg = 0x00,
  198. .host_int_mask = 0x08,
  199. .host_intstatus = 0x0c,
  200. .card_status = 0x5c,
  201. .sq_read_base_addr_a0 = 0xf8,
  202. .sq_read_base_addr_a1 = 0xf9,
  203. .card_revision = 0xc8,
  204. .card_fw_status0 = 0xe8,
  205. .card_fw_status1 = 0xe9,
  206. .card_rx_len = 0xea,
  207. .card_rx_unit = 0xeb,
  208. .io_port_0 = 0xe4,
  209. .io_port_1 = 0xe5,
  210. .io_port_2 = 0xe6,
  211. .int_read_to_clear = true,
  212. .host_int_rsr = 0x04,
  213. .card_misc_cfg = 0xd8,
  214. .fw_dump_ctrl = 0xf0,
  215. .fw_dump_start = 0xf1,
  216. .fw_dump_end = 0xf8,
  217. };
  218. static const struct btmrvl_sdio_device btmrvl_sdio_sd8688 = {
  219. .helper = "mrvl/sd8688_helper.bin",
  220. .firmware = "mrvl/sd8688.bin",
  221. .reg = &btmrvl_reg_8688,
  222. .support_pscan_win_report = false,
  223. .sd_blksz_fw_dl = 64,
  224. .supports_fw_dump = false,
  225. };
  226. static const struct btmrvl_sdio_device btmrvl_sdio_sd8787 = {
  227. .helper = NULL,
  228. .firmware = "mrvl/sd8787_uapsta.bin",
  229. .reg = &btmrvl_reg_87xx,
  230. .support_pscan_win_report = false,
  231. .sd_blksz_fw_dl = 256,
  232. .supports_fw_dump = false,
  233. };
  234. static const struct btmrvl_sdio_device btmrvl_sdio_sd8797 = {
  235. .helper = NULL,
  236. .firmware = "mrvl/sd8797_uapsta.bin",
  237. .reg = &btmrvl_reg_87xx,
  238. .support_pscan_win_report = false,
  239. .sd_blksz_fw_dl = 256,
  240. .supports_fw_dump = false,
  241. };
  242. static const struct btmrvl_sdio_device btmrvl_sdio_sd8887 = {
  243. .helper = NULL,
  244. .firmware = "mrvl/sd8887_uapsta.bin",
  245. .reg = &btmrvl_reg_8887,
  246. .support_pscan_win_report = true,
  247. .sd_blksz_fw_dl = 256,
  248. .supports_fw_dump = false,
  249. };
  250. static const struct btmrvl_sdio_device btmrvl_sdio_sd8897 = {
  251. .helper = NULL,
  252. .firmware = "mrvl/sd8897_uapsta.bin",
  253. .reg = &btmrvl_reg_8897,
  254. .support_pscan_win_report = true,
  255. .sd_blksz_fw_dl = 256,
  256. .supports_fw_dump = true,
  257. };
  258. static const struct btmrvl_sdio_device btmrvl_sdio_sd8977 = {
  259. .helper = NULL,
  260. .firmware = "mrvl/sdsd8977_combo_v2.bin",
  261. .reg = &btmrvl_reg_89xx,
  262. .support_pscan_win_report = true,
  263. .sd_blksz_fw_dl = 256,
  264. .supports_fw_dump = true,
  265. };
  266. static const struct btmrvl_sdio_device btmrvl_sdio_sd8987 = {
  267. .helper = NULL,
  268. .firmware = "mrvl/sd8987_uapsta.bin",
  269. .reg = &btmrvl_reg_89xx,
  270. .support_pscan_win_report = true,
  271. .sd_blksz_fw_dl = 256,
  272. .supports_fw_dump = true,
  273. };
  274. static const struct btmrvl_sdio_device btmrvl_sdio_sd8997 = {
  275. .helper = NULL,
  276. .firmware = "mrvl/sdsd8997_combo_v4.bin",
  277. .reg = &btmrvl_reg_89xx,
  278. .support_pscan_win_report = true,
  279. .sd_blksz_fw_dl = 256,
  280. .supports_fw_dump = true,
  281. };
  282. static const struct sdio_device_id btmrvl_sdio_ids[] = {
  283. /* Marvell SD8688 Bluetooth device */
  284. { SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8688_BT),
  285. .driver_data = (unsigned long)&btmrvl_sdio_sd8688 },
  286. /* Marvell SD8787 Bluetooth device */
  287. { SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8787_BT),
  288. .driver_data = (unsigned long)&btmrvl_sdio_sd8787 },
  289. /* Marvell SD8787 Bluetooth AMP device */
  290. { SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8787_BT_AMP),
  291. .driver_data = (unsigned long)&btmrvl_sdio_sd8787 },
  292. /* Marvell SD8797 Bluetooth device */
  293. { SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8797_BT),
  294. .driver_data = (unsigned long)&btmrvl_sdio_sd8797 },
  295. /* Marvell SD8887 Bluetooth device */
  296. { SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8887_BT),
  297. .driver_data = (unsigned long)&btmrvl_sdio_sd8887 },
  298. /* Marvell SD8897 Bluetooth device */
  299. { SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8897_BT),
  300. .driver_data = (unsigned long)&btmrvl_sdio_sd8897 },
  301. /* Marvell SD8977 Bluetooth device */
  302. { SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8977_BT),
  303. .driver_data = (unsigned long)&btmrvl_sdio_sd8977 },
  304. /* Marvell SD8987 Bluetooth device */
  305. { SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8987_BT),
  306. .driver_data = (unsigned long)&btmrvl_sdio_sd8987 },
  307. /* Marvell SD8997 Bluetooth device */
  308. { SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8997_BT),
  309. .driver_data = (unsigned long)&btmrvl_sdio_sd8997 },
  310. { } /* Terminating entry */
  311. };
  312. MODULE_DEVICE_TABLE(sdio, btmrvl_sdio_ids);
  313. static int btmrvl_sdio_get_rx_unit(struct btmrvl_sdio_card *card)
  314. {
  315. u8 reg;
  316. int ret;
  317. reg = sdio_readb(card->func, card->reg->card_rx_unit, &ret);
  318. if (!ret)
  319. card->rx_unit = reg;
  320. return ret;
  321. }
  322. static int btmrvl_sdio_read_fw_status(struct btmrvl_sdio_card *card, u16 *dat)
  323. {
  324. u8 fws0, fws1;
  325. int ret;
  326. *dat = 0;
  327. fws0 = sdio_readb(card->func, card->reg->card_fw_status0, &ret);
  328. if (ret)
  329. return -EIO;
  330. fws1 = sdio_readb(card->func, card->reg->card_fw_status1, &ret);
  331. if (ret)
  332. return -EIO;
  333. *dat = (((u16) fws1) << 8) | fws0;
  334. return 0;
  335. }
  336. static int btmrvl_sdio_read_rx_len(struct btmrvl_sdio_card *card, u16 *dat)
  337. {
  338. u8 reg;
  339. int ret;
  340. reg = sdio_readb(card->func, card->reg->card_rx_len, &ret);
  341. if (!ret)
  342. *dat = (u16) reg << card->rx_unit;
  343. return ret;
  344. }
  345. static int btmrvl_sdio_enable_host_int_mask(struct btmrvl_sdio_card *card,
  346. u8 mask)
  347. {
  348. int ret;
  349. sdio_writeb(card->func, mask, card->reg->host_int_mask, &ret);
  350. if (ret) {
  351. BT_ERR("Unable to enable the host interrupt!");
  352. ret = -EIO;
  353. }
  354. return ret;
  355. }
  356. static int btmrvl_sdio_disable_host_int_mask(struct btmrvl_sdio_card *card,
  357. u8 mask)
  358. {
  359. u8 host_int_mask;
  360. int ret;
  361. host_int_mask = sdio_readb(card->func, card->reg->host_int_mask, &ret);
  362. if (ret)
  363. return -EIO;
  364. host_int_mask &= ~mask;
  365. sdio_writeb(card->func, host_int_mask, card->reg->host_int_mask, &ret);
  366. if (ret < 0) {
  367. BT_ERR("Unable to disable the host interrupt!");
  368. return -EIO;
  369. }
  370. return 0;
  371. }
  372. static int btmrvl_sdio_poll_card_status(struct btmrvl_sdio_card *card, u8 bits)
  373. {
  374. unsigned int tries;
  375. u8 status;
  376. int ret;
  377. for (tries = 0; tries < MAX_POLL_TRIES * 1000; tries++) {
  378. status = sdio_readb(card->func, card->reg->card_status, &ret);
  379. if (ret)
  380. goto failed;
  381. if ((status & bits) == bits)
  382. return ret;
  383. udelay(1);
  384. }
  385. ret = -ETIMEDOUT;
  386. failed:
  387. BT_ERR("FAILED! ret=%d", ret);
  388. return ret;
  389. }
  390. static int btmrvl_sdio_verify_fw_download(struct btmrvl_sdio_card *card,
  391. int pollnum)
  392. {
  393. u16 firmwarestat;
  394. int tries, ret;
  395. /* Wait for firmware to become ready */
  396. for (tries = 0; tries < pollnum; tries++) {
  397. sdio_claim_host(card->func);
  398. ret = btmrvl_sdio_read_fw_status(card, &firmwarestat);
  399. sdio_release_host(card->func);
  400. if (ret < 0)
  401. continue;
  402. if (firmwarestat == FIRMWARE_READY)
  403. return 0;
  404. msleep(100);
  405. }
  406. return -ETIMEDOUT;
  407. }
  408. static int btmrvl_sdio_download_helper(struct btmrvl_sdio_card *card)
  409. {
  410. const struct firmware *fw_helper = NULL;
  411. const u8 *helper = NULL;
  412. int ret;
  413. void *tmphlprbuf = NULL;
  414. int tmphlprbufsz, hlprblknow, helperlen;
  415. u8 *helperbuf;
  416. u32 tx_len;
  417. ret = request_firmware(&fw_helper, card->helper,
  418. &card->func->dev);
  419. if ((ret < 0) || !fw_helper) {
  420. BT_ERR("request_firmware(helper) failed, error code = %d",
  421. ret);
  422. ret = -ENOENT;
  423. goto done;
  424. }
  425. helper = fw_helper->data;
  426. helperlen = fw_helper->size;
  427. BT_DBG("Downloading helper image (%d bytes), block size %d bytes",
  428. helperlen, SDIO_BLOCK_SIZE);
  429. tmphlprbufsz = ALIGN_SZ(BTM_UPLD_SIZE, BTSDIO_DMA_ALIGN);
  430. tmphlprbuf = kzalloc(tmphlprbufsz, GFP_KERNEL);
  431. if (!tmphlprbuf) {
  432. BT_ERR("Unable to allocate buffer for helper."
  433. " Terminating download");
  434. ret = -ENOMEM;
  435. goto done;
  436. }
  437. helperbuf = (u8 *) ALIGN_ADDR(tmphlprbuf, BTSDIO_DMA_ALIGN);
  438. /* Perform helper data transfer */
  439. tx_len = (FIRMWARE_TRANSFER_NBLOCK * SDIO_BLOCK_SIZE)
  440. - SDIO_HEADER_LEN;
  441. hlprblknow = 0;
  442. do {
  443. ret = btmrvl_sdio_poll_card_status(card,
  444. CARD_IO_READY | DN_LD_CARD_RDY);
  445. if (ret < 0) {
  446. BT_ERR("Helper download poll status timeout @ %d",
  447. hlprblknow);
  448. goto done;
  449. }
  450. /* Check if there is more data? */
  451. if (hlprblknow >= helperlen)
  452. break;
  453. if (helperlen - hlprblknow < tx_len)
  454. tx_len = helperlen - hlprblknow;
  455. /* Little-endian */
  456. helperbuf[0] = ((tx_len & 0x000000ff) >> 0);
  457. helperbuf[1] = ((tx_len & 0x0000ff00) >> 8);
  458. helperbuf[2] = ((tx_len & 0x00ff0000) >> 16);
  459. helperbuf[3] = ((tx_len & 0xff000000) >> 24);
  460. memcpy(&helperbuf[SDIO_HEADER_LEN], &helper[hlprblknow],
  461. tx_len);
  462. /* Now send the data */
  463. ret = sdio_writesb(card->func, card->ioport, helperbuf,
  464. FIRMWARE_TRANSFER_NBLOCK * SDIO_BLOCK_SIZE);
  465. if (ret < 0) {
  466. BT_ERR("IO error during helper download @ %d",
  467. hlprblknow);
  468. goto done;
  469. }
  470. hlprblknow += tx_len;
  471. } while (true);
  472. BT_DBG("Transferring helper image EOF block");
  473. memset(helperbuf, 0x0, SDIO_BLOCK_SIZE);
  474. ret = sdio_writesb(card->func, card->ioport, helperbuf,
  475. SDIO_BLOCK_SIZE);
  476. if (ret < 0) {
  477. BT_ERR("IO error in writing helper image EOF block");
  478. goto done;
  479. }
  480. ret = 0;
  481. done:
  482. kfree(tmphlprbuf);
  483. release_firmware(fw_helper);
  484. return ret;
  485. }
  486. static int btmrvl_sdio_download_fw_w_helper(struct btmrvl_sdio_card *card)
  487. {
  488. const struct firmware *fw_firmware = NULL;
  489. const u8 *firmware = NULL;
  490. int firmwarelen, tmpfwbufsz, ret;
  491. unsigned int tries, offset;
  492. u8 base0, base1;
  493. void *tmpfwbuf = NULL;
  494. u8 *fwbuf;
  495. u16 len, blksz_dl = card->sd_blksz_fw_dl;
  496. int txlen = 0, tx_blocks = 0, count = 0;
  497. ret = request_firmware(&fw_firmware, card->firmware,
  498. &card->func->dev);
  499. if ((ret < 0) || !fw_firmware) {
  500. BT_ERR("request_firmware(firmware) failed, error code = %d",
  501. ret);
  502. ret = -ENOENT;
  503. goto done;
  504. }
  505. firmware = fw_firmware->data;
  506. firmwarelen = fw_firmware->size;
  507. BT_DBG("Downloading FW image (%d bytes)", firmwarelen);
  508. tmpfwbufsz = ALIGN_SZ(BTM_UPLD_SIZE, BTSDIO_DMA_ALIGN);
  509. tmpfwbuf = kzalloc(tmpfwbufsz, GFP_KERNEL);
  510. if (!tmpfwbuf) {
  511. BT_ERR("Unable to allocate buffer for firmware."
  512. " Terminating download");
  513. ret = -ENOMEM;
  514. goto done;
  515. }
  516. /* Ensure aligned firmware buffer */
  517. fwbuf = (u8 *) ALIGN_ADDR(tmpfwbuf, BTSDIO_DMA_ALIGN);
  518. /* Perform firmware data transfer */
  519. offset = 0;
  520. do {
  521. ret = btmrvl_sdio_poll_card_status(card,
  522. CARD_IO_READY | DN_LD_CARD_RDY);
  523. if (ret < 0) {
  524. BT_ERR("FW download with helper poll status"
  525. " timeout @ %d", offset);
  526. goto done;
  527. }
  528. /* Check if there is more data ? */
  529. if (offset >= firmwarelen)
  530. break;
  531. for (tries = 0; tries < MAX_POLL_TRIES; tries++) {
  532. base0 = sdio_readb(card->func,
  533. card->reg->sq_read_base_addr_a0, &ret);
  534. if (ret) {
  535. BT_ERR("BASE0 register read failed:"
  536. " base0 = 0x%04X(%d)."
  537. " Terminating download",
  538. base0, base0);
  539. ret = -EIO;
  540. goto done;
  541. }
  542. base1 = sdio_readb(card->func,
  543. card->reg->sq_read_base_addr_a1, &ret);
  544. if (ret) {
  545. BT_ERR("BASE1 register read failed:"
  546. " base1 = 0x%04X(%d)."
  547. " Terminating download",
  548. base1, base1);
  549. ret = -EIO;
  550. goto done;
  551. }
  552. len = (((u16) base1) << 8) | base0;
  553. if (len)
  554. break;
  555. udelay(10);
  556. }
  557. if (!len)
  558. break;
  559. else if (len > BTM_UPLD_SIZE) {
  560. BT_ERR("FW download failure @%d, invalid length %d",
  561. offset, len);
  562. ret = -EINVAL;
  563. goto done;
  564. }
  565. txlen = len;
  566. if (len & BIT(0)) {
  567. count++;
  568. if (count > MAX_WRITE_IOMEM_RETRY) {
  569. BT_ERR("FW download failure @%d, "
  570. "over max retry count", offset);
  571. ret = -EIO;
  572. goto done;
  573. }
  574. BT_ERR("FW CRC error indicated by the helper: "
  575. "len = 0x%04X, txlen = %d", len, txlen);
  576. len &= ~BIT(0);
  577. /* Set txlen to 0 so as to resend from same offset */
  578. txlen = 0;
  579. } else {
  580. count = 0;
  581. /* Last block ? */
  582. if (firmwarelen - offset < txlen)
  583. txlen = firmwarelen - offset;
  584. tx_blocks = DIV_ROUND_UP(txlen, blksz_dl);
  585. memcpy(fwbuf, &firmware[offset], txlen);
  586. }
  587. ret = sdio_writesb(card->func, card->ioport, fwbuf,
  588. tx_blocks * blksz_dl);
  589. if (ret < 0) {
  590. BT_ERR("FW download, writesb(%d) failed @%d",
  591. count, offset);
  592. sdio_writeb(card->func, HOST_CMD53_FIN,
  593. card->reg->cfg, &ret);
  594. if (ret)
  595. BT_ERR("writeb failed (CFG)");
  596. }
  597. offset += txlen;
  598. } while (true);
  599. BT_INFO("FW download over, size %d bytes", offset);
  600. ret = 0;
  601. done:
  602. kfree(tmpfwbuf);
  603. release_firmware(fw_firmware);
  604. return ret;
  605. }
  606. static int btmrvl_sdio_card_to_host(struct btmrvl_private *priv)
  607. {
  608. u16 buf_len = 0;
  609. int ret, num_blocks, blksz;
  610. struct sk_buff *skb = NULL;
  611. u32 type;
  612. u8 *payload;
  613. struct hci_dev *hdev = priv->btmrvl_dev.hcidev;
  614. struct btmrvl_sdio_card *card = priv->btmrvl_dev.card;
  615. if (!card || !card->func) {
  616. BT_ERR("card or function is NULL!");
  617. ret = -EINVAL;
  618. goto exit;
  619. }
  620. /* Read the length of data to be transferred */
  621. ret = btmrvl_sdio_read_rx_len(card, &buf_len);
  622. if (ret < 0) {
  623. BT_ERR("read rx_len failed");
  624. ret = -EIO;
  625. goto exit;
  626. }
  627. blksz = SDIO_BLOCK_SIZE;
  628. num_blocks = DIV_ROUND_UP(buf_len, blksz);
  629. if (buf_len <= SDIO_HEADER_LEN
  630. || (num_blocks * blksz) > ALLOC_BUF_SIZE) {
  631. BT_ERR("invalid packet length: %d", buf_len);
  632. ret = -EINVAL;
  633. goto exit;
  634. }
  635. /* Allocate buffer */
  636. skb = bt_skb_alloc(num_blocks * blksz + BTSDIO_DMA_ALIGN, GFP_KERNEL);
  637. if (!skb) {
  638. BT_ERR("No free skb");
  639. ret = -ENOMEM;
  640. goto exit;
  641. }
  642. if ((unsigned long) skb->data & (BTSDIO_DMA_ALIGN - 1)) {
  643. skb_put(skb, (unsigned long) skb->data &
  644. (BTSDIO_DMA_ALIGN - 1));
  645. skb_pull(skb, (unsigned long) skb->data &
  646. (BTSDIO_DMA_ALIGN - 1));
  647. }
  648. payload = skb->data;
  649. ret = sdio_readsb(card->func, payload, card->ioport,
  650. num_blocks * blksz);
  651. if (ret < 0) {
  652. BT_ERR("readsb failed: %d", ret);
  653. ret = -EIO;
  654. goto exit;
  655. }
  656. /* This is SDIO specific header length: byte[2][1][0], type: byte[3]
  657. * (HCI_COMMAND = 1, ACL_DATA = 2, SCO_DATA = 3, 0xFE = Vendor)
  658. */
  659. buf_len = payload[0];
  660. buf_len |= payload[1] << 8;
  661. buf_len |= payload[2] << 16;
  662. if (buf_len > blksz * num_blocks) {
  663. BT_ERR("Skip incorrect packet: hdrlen %d buffer %d",
  664. buf_len, blksz * num_blocks);
  665. ret = -EIO;
  666. goto exit;
  667. }
  668. type = payload[3];
  669. switch (type) {
  670. case HCI_ACLDATA_PKT:
  671. case HCI_SCODATA_PKT:
  672. case HCI_EVENT_PKT:
  673. hci_skb_pkt_type(skb) = type;
  674. skb_put(skb, buf_len);
  675. skb_pull(skb, SDIO_HEADER_LEN);
  676. if (type == HCI_EVENT_PKT) {
  677. if (btmrvl_check_evtpkt(priv, skb))
  678. hci_recv_frame(hdev, skb);
  679. } else {
  680. hci_recv_frame(hdev, skb);
  681. }
  682. hdev->stat.byte_rx += buf_len;
  683. break;
  684. case MRVL_VENDOR_PKT:
  685. hci_skb_pkt_type(skb) = HCI_VENDOR_PKT;
  686. skb_put(skb, buf_len);
  687. skb_pull(skb, SDIO_HEADER_LEN);
  688. if (btmrvl_process_event(priv, skb))
  689. hci_recv_frame(hdev, skb);
  690. hdev->stat.byte_rx += buf_len;
  691. break;
  692. default:
  693. BT_ERR("Unknown packet type:%d", type);
  694. BT_ERR("hex: %*ph", blksz * num_blocks, payload);
  695. kfree_skb(skb);
  696. skb = NULL;
  697. break;
  698. }
  699. exit:
  700. if (ret) {
  701. hdev->stat.err_rx++;
  702. kfree_skb(skb);
  703. }
  704. return ret;
  705. }
  706. static int btmrvl_sdio_process_int_status(struct btmrvl_private *priv)
  707. {
  708. ulong flags;
  709. u8 ireg;
  710. struct btmrvl_sdio_card *card = priv->btmrvl_dev.card;
  711. spin_lock_irqsave(&priv->driver_lock, flags);
  712. ireg = sdio_ireg;
  713. sdio_ireg = 0;
  714. spin_unlock_irqrestore(&priv->driver_lock, flags);
  715. sdio_claim_host(card->func);
  716. if (ireg & DN_LD_HOST_INT_STATUS) {
  717. if (priv->btmrvl_dev.tx_dnld_rdy)
  718. BT_DBG("tx_done already received: "
  719. " int_status=0x%x", ireg);
  720. else
  721. priv->btmrvl_dev.tx_dnld_rdy = true;
  722. }
  723. if (ireg & UP_LD_HOST_INT_STATUS)
  724. btmrvl_sdio_card_to_host(priv);
  725. sdio_release_host(card->func);
  726. return 0;
  727. }
  728. static int btmrvl_sdio_read_to_clear(struct btmrvl_sdio_card *card, u8 *ireg)
  729. {
  730. struct btmrvl_adapter *adapter = card->priv->adapter;
  731. int ret;
  732. ret = sdio_readsb(card->func, adapter->hw_regs, 0, SDIO_BLOCK_SIZE);
  733. if (ret) {
  734. BT_ERR("sdio_readsb: read int hw_regs failed: %d", ret);
  735. return ret;
  736. }
  737. *ireg = adapter->hw_regs[card->reg->host_intstatus];
  738. BT_DBG("hw_regs[%#x]=%#x", card->reg->host_intstatus, *ireg);
  739. return 0;
  740. }
  741. static int btmrvl_sdio_write_to_clear(struct btmrvl_sdio_card *card, u8 *ireg)
  742. {
  743. int ret;
  744. *ireg = sdio_readb(card->func, card->reg->host_intstatus, &ret);
  745. if (ret) {
  746. BT_ERR("sdio_readb: read int status failed: %d", ret);
  747. return ret;
  748. }
  749. if (*ireg) {
  750. /*
  751. * DN_LD_HOST_INT_STATUS and/or UP_LD_HOST_INT_STATUS
  752. * Clear the interrupt status register and re-enable the
  753. * interrupt.
  754. */
  755. BT_DBG("int_status = 0x%x", *ireg);
  756. sdio_writeb(card->func, ~(*ireg) & (DN_LD_HOST_INT_STATUS |
  757. UP_LD_HOST_INT_STATUS),
  758. card->reg->host_intstatus, &ret);
  759. if (ret) {
  760. BT_ERR("sdio_writeb: clear int status failed: %d", ret);
  761. return ret;
  762. }
  763. }
  764. return 0;
  765. }
  766. static void btmrvl_sdio_interrupt(struct sdio_func *func)
  767. {
  768. struct btmrvl_private *priv;
  769. struct btmrvl_sdio_card *card;
  770. ulong flags;
  771. u8 ireg = 0;
  772. int ret;
  773. card = sdio_get_drvdata(func);
  774. if (!card || !card->priv) {
  775. BT_ERR("sbi_interrupt(%p) card or priv is NULL, card=%p",
  776. func, card);
  777. return;
  778. }
  779. priv = card->priv;
  780. if (priv->surprise_removed)
  781. return;
  782. if (card->reg->int_read_to_clear)
  783. ret = btmrvl_sdio_read_to_clear(card, &ireg);
  784. else
  785. ret = btmrvl_sdio_write_to_clear(card, &ireg);
  786. if (ret)
  787. return;
  788. spin_lock_irqsave(&priv->driver_lock, flags);
  789. sdio_ireg |= ireg;
  790. spin_unlock_irqrestore(&priv->driver_lock, flags);
  791. btmrvl_interrupt(priv);
  792. }
  793. static int btmrvl_sdio_register_dev(struct btmrvl_sdio_card *card)
  794. {
  795. struct sdio_func *func;
  796. u8 reg;
  797. int ret;
  798. if (!card || !card->func) {
  799. BT_ERR("Error: card or function is NULL!");
  800. ret = -EINVAL;
  801. goto failed;
  802. }
  803. func = card->func;
  804. sdio_claim_host(func);
  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. ret = sdio_claim_irq(func, btmrvl_sdio_interrupt);
  812. if (ret) {
  813. BT_ERR("sdio_claim_irq failed: ret=%d", ret);
  814. ret = -EIO;
  815. goto disable_func;
  816. }
  817. ret = sdio_set_block_size(card->func, SDIO_BLOCK_SIZE);
  818. if (ret) {
  819. BT_ERR("cannot set SDIO block size");
  820. ret = -EIO;
  821. goto release_irq;
  822. }
  823. reg = sdio_readb(func, card->reg->io_port_0, &ret);
  824. if (ret < 0) {
  825. ret = -EIO;
  826. goto release_irq;
  827. }
  828. card->ioport = reg;
  829. reg = sdio_readb(func, card->reg->io_port_1, &ret);
  830. if (ret < 0) {
  831. ret = -EIO;
  832. goto release_irq;
  833. }
  834. card->ioport |= (reg << 8);
  835. reg = sdio_readb(func, card->reg->io_port_2, &ret);
  836. if (ret < 0) {
  837. ret = -EIO;
  838. goto release_irq;
  839. }
  840. card->ioport |= (reg << 16);
  841. BT_DBG("SDIO FUNC%d IO port: 0x%x", func->num, card->ioport);
  842. if (card->reg->int_read_to_clear) {
  843. reg = sdio_readb(func, card->reg->host_int_rsr, &ret);
  844. if (ret < 0) {
  845. ret = -EIO;
  846. goto release_irq;
  847. }
  848. sdio_writeb(func, reg | 0x3f, card->reg->host_int_rsr, &ret);
  849. if (ret < 0) {
  850. ret = -EIO;
  851. goto release_irq;
  852. }
  853. reg = sdio_readb(func, card->reg->card_misc_cfg, &ret);
  854. if (ret < 0) {
  855. ret = -EIO;
  856. goto release_irq;
  857. }
  858. sdio_writeb(func, reg | 0x10, card->reg->card_misc_cfg, &ret);
  859. if (ret < 0) {
  860. ret = -EIO;
  861. goto release_irq;
  862. }
  863. }
  864. sdio_set_drvdata(func, card);
  865. sdio_release_host(func);
  866. return 0;
  867. release_irq:
  868. sdio_release_irq(func);
  869. disable_func:
  870. sdio_disable_func(func);
  871. release_host:
  872. sdio_release_host(func);
  873. failed:
  874. return ret;
  875. }
  876. static int btmrvl_sdio_unregister_dev(struct btmrvl_sdio_card *card)
  877. {
  878. if (card && card->func) {
  879. sdio_claim_host(card->func);
  880. sdio_release_irq(card->func);
  881. sdio_disable_func(card->func);
  882. sdio_release_host(card->func);
  883. sdio_set_drvdata(card->func, NULL);
  884. }
  885. return 0;
  886. }
  887. static int btmrvl_sdio_enable_host_int(struct btmrvl_sdio_card *card)
  888. {
  889. int ret;
  890. if (!card || !card->func)
  891. return -EINVAL;
  892. sdio_claim_host(card->func);
  893. ret = btmrvl_sdio_enable_host_int_mask(card, HIM_ENABLE);
  894. btmrvl_sdio_get_rx_unit(card);
  895. sdio_release_host(card->func);
  896. return ret;
  897. }
  898. static int btmrvl_sdio_disable_host_int(struct btmrvl_sdio_card *card)
  899. {
  900. int ret;
  901. if (!card || !card->func)
  902. return -EINVAL;
  903. sdio_claim_host(card->func);
  904. ret = btmrvl_sdio_disable_host_int_mask(card, HIM_DISABLE);
  905. sdio_release_host(card->func);
  906. return ret;
  907. }
  908. static int btmrvl_sdio_host_to_card(struct btmrvl_private *priv,
  909. u8 *payload, u16 nb)
  910. {
  911. struct btmrvl_sdio_card *card = priv->btmrvl_dev.card;
  912. int ret = 0;
  913. int blksz;
  914. int i = 0;
  915. u8 *buf = NULL;
  916. void *tmpbuf = NULL;
  917. int tmpbufsz;
  918. if (!card || !card->func) {
  919. BT_ERR("card or function is NULL!");
  920. return -EINVAL;
  921. }
  922. blksz = DIV_ROUND_UP(nb, SDIO_BLOCK_SIZE) * SDIO_BLOCK_SIZE;
  923. buf = payload;
  924. if ((unsigned long) payload & (BTSDIO_DMA_ALIGN - 1) ||
  925. nb < blksz) {
  926. tmpbufsz = ALIGN_SZ(blksz, BTSDIO_DMA_ALIGN) +
  927. BTSDIO_DMA_ALIGN;
  928. tmpbuf = kzalloc(tmpbufsz, GFP_KERNEL);
  929. if (!tmpbuf)
  930. return -ENOMEM;
  931. buf = (u8 *) ALIGN_ADDR(tmpbuf, BTSDIO_DMA_ALIGN);
  932. memcpy(buf, payload, nb);
  933. }
  934. sdio_claim_host(card->func);
  935. do {
  936. /* Transfer data to card */
  937. ret = sdio_writesb(card->func, card->ioport, buf,
  938. blksz);
  939. if (ret < 0) {
  940. i++;
  941. BT_ERR("i=%d writesb failed: %d", i, ret);
  942. BT_ERR("hex: %*ph", nb, payload);
  943. ret = -EIO;
  944. if (i > MAX_WRITE_IOMEM_RETRY)
  945. goto exit;
  946. }
  947. } while (ret);
  948. priv->btmrvl_dev.tx_dnld_rdy = false;
  949. exit:
  950. sdio_release_host(card->func);
  951. kfree(tmpbuf);
  952. return ret;
  953. }
  954. static int btmrvl_sdio_download_fw(struct btmrvl_sdio_card *card)
  955. {
  956. int ret;
  957. u8 fws0;
  958. int pollnum = MAX_POLL_TRIES;
  959. if (!card || !card->func) {
  960. BT_ERR("card or function is NULL!");
  961. return -EINVAL;
  962. }
  963. if (!btmrvl_sdio_verify_fw_download(card, 1)) {
  964. BT_DBG("Firmware already downloaded!");
  965. return 0;
  966. }
  967. sdio_claim_host(card->func);
  968. /* Check if other function driver is downloading the firmware */
  969. fws0 = sdio_readb(card->func, card->reg->card_fw_status0, &ret);
  970. if (ret) {
  971. BT_ERR("Failed to read FW downloading status!");
  972. ret = -EIO;
  973. goto done;
  974. }
  975. if (fws0) {
  976. BT_DBG("BT not the winner (%#x). Skip FW downloading", fws0);
  977. /* Give other function more time to download the firmware */
  978. pollnum *= 10;
  979. } else {
  980. if (card->helper) {
  981. ret = btmrvl_sdio_download_helper(card);
  982. if (ret) {
  983. BT_ERR("Failed to download helper!");
  984. ret = -EIO;
  985. goto done;
  986. }
  987. }
  988. if (btmrvl_sdio_download_fw_w_helper(card)) {
  989. BT_ERR("Failed to download firmware!");
  990. ret = -EIO;
  991. goto done;
  992. }
  993. }
  994. /*
  995. * winner or not, with this test the FW synchronizes when the
  996. * module can continue its initialization
  997. */
  998. if (btmrvl_sdio_verify_fw_download(card, pollnum)) {
  999. BT_ERR("FW failed to be active in time!");
  1000. ret = -ETIMEDOUT;
  1001. goto done;
  1002. }
  1003. sdio_release_host(card->func);
  1004. return 0;
  1005. done:
  1006. sdio_release_host(card->func);
  1007. return ret;
  1008. }
  1009. static int btmrvl_sdio_wakeup_fw(struct btmrvl_private *priv)
  1010. {
  1011. struct btmrvl_sdio_card *card = priv->btmrvl_dev.card;
  1012. int ret = 0;
  1013. if (!card || !card->func) {
  1014. BT_ERR("card or function is NULL!");
  1015. return -EINVAL;
  1016. }
  1017. sdio_claim_host(card->func);
  1018. sdio_writeb(card->func, HOST_POWER_UP, card->reg->cfg, &ret);
  1019. sdio_release_host(card->func);
  1020. BT_DBG("wake up firmware");
  1021. return ret;
  1022. }
  1023. static void btmrvl_sdio_dump_regs(struct btmrvl_private *priv)
  1024. {
  1025. struct btmrvl_sdio_card *card = priv->btmrvl_dev.card;
  1026. int ret = 0;
  1027. unsigned int reg, reg_start, reg_end;
  1028. char buf[256], *ptr;
  1029. u8 loop, func, data;
  1030. int MAX_LOOP = 2;
  1031. btmrvl_sdio_wakeup_fw(priv);
  1032. sdio_claim_host(card->func);
  1033. for (loop = 0; loop < MAX_LOOP; loop++) {
  1034. memset(buf, 0, sizeof(buf));
  1035. ptr = buf;
  1036. if (loop == 0) {
  1037. /* Read the registers of SDIO function0 */
  1038. func = loop;
  1039. reg_start = 0;
  1040. reg_end = 9;
  1041. } else {
  1042. func = 2;
  1043. reg_start = 0;
  1044. reg_end = 0x09;
  1045. }
  1046. ptr += sprintf(ptr, "SDIO Func%d (%#x-%#x): ",
  1047. func, reg_start, reg_end);
  1048. for (reg = reg_start; reg <= reg_end; reg++) {
  1049. if (func == 0)
  1050. data = sdio_f0_readb(card->func, reg, &ret);
  1051. else
  1052. data = sdio_readb(card->func, reg, &ret);
  1053. if (!ret) {
  1054. ptr += sprintf(ptr, "%02x ", data);
  1055. } else {
  1056. ptr += sprintf(ptr, "ERR");
  1057. break;
  1058. }
  1059. }
  1060. BT_INFO("%s", buf);
  1061. }
  1062. sdio_release_host(card->func);
  1063. }
  1064. /* This function read/write firmware */
  1065. static enum
  1066. rdwr_status btmrvl_sdio_rdwr_firmware(struct btmrvl_private *priv,
  1067. u8 doneflag)
  1068. {
  1069. struct btmrvl_sdio_card *card = priv->btmrvl_dev.card;
  1070. int ret, tries;
  1071. u8 ctrl_data = 0;
  1072. sdio_writeb(card->func, FW_DUMP_HOST_READY, card->reg->fw_dump_ctrl,
  1073. &ret);
  1074. if (ret) {
  1075. BT_ERR("SDIO write err");
  1076. return RDWR_STATUS_FAILURE;
  1077. }
  1078. for (tries = 0; tries < MAX_POLL_TRIES; tries++) {
  1079. ctrl_data = sdio_readb(card->func, card->reg->fw_dump_ctrl,
  1080. &ret);
  1081. if (ret) {
  1082. BT_ERR("SDIO read err");
  1083. return RDWR_STATUS_FAILURE;
  1084. }
  1085. if (ctrl_data == FW_DUMP_DONE)
  1086. break;
  1087. if (doneflag && ctrl_data == doneflag)
  1088. return RDWR_STATUS_DONE;
  1089. if (ctrl_data != FW_DUMP_HOST_READY) {
  1090. BT_INFO("The ctrl reg was changed, re-try again!");
  1091. sdio_writeb(card->func, FW_DUMP_HOST_READY,
  1092. card->reg->fw_dump_ctrl, &ret);
  1093. if (ret) {
  1094. BT_ERR("SDIO write err");
  1095. return RDWR_STATUS_FAILURE;
  1096. }
  1097. }
  1098. usleep_range(100, 200);
  1099. }
  1100. if (ctrl_data == FW_DUMP_HOST_READY) {
  1101. BT_ERR("Fail to pull ctrl_data");
  1102. return RDWR_STATUS_FAILURE;
  1103. }
  1104. return RDWR_STATUS_SUCCESS;
  1105. }
  1106. /* This function dump sdio register and memory data */
  1107. static void btmrvl_sdio_coredump(struct device *dev)
  1108. {
  1109. struct sdio_func *func = dev_to_sdio_func(dev);
  1110. struct btmrvl_sdio_card *card;
  1111. struct btmrvl_private *priv;
  1112. int ret = 0;
  1113. unsigned int reg, reg_start, reg_end;
  1114. enum rdwr_status stat;
  1115. u8 *dbg_ptr, *end_ptr, *fw_dump_data, *fw_dump_ptr;
  1116. u8 dump_num = 0, idx, i, read_reg, doneflag = 0;
  1117. u32 memory_size, fw_dump_len = 0;
  1118. card = sdio_get_drvdata(func);
  1119. priv = card->priv;
  1120. /* dump sdio register first */
  1121. btmrvl_sdio_dump_regs(priv);
  1122. if (!card->supports_fw_dump) {
  1123. BT_ERR("Firmware dump not supported for this card!");
  1124. return;
  1125. }
  1126. for (idx = 0; idx < ARRAY_SIZE(mem_type_mapping_tbl); idx++) {
  1127. struct memory_type_mapping *entry = &mem_type_mapping_tbl[idx];
  1128. if (entry->mem_ptr) {
  1129. vfree(entry->mem_ptr);
  1130. entry->mem_ptr = NULL;
  1131. }
  1132. entry->mem_size = 0;
  1133. }
  1134. btmrvl_sdio_wakeup_fw(priv);
  1135. sdio_claim_host(card->func);
  1136. BT_INFO("== btmrvl firmware dump start ==");
  1137. stat = btmrvl_sdio_rdwr_firmware(priv, doneflag);
  1138. if (stat == RDWR_STATUS_FAILURE)
  1139. goto done;
  1140. reg = card->reg->fw_dump_start;
  1141. /* Read the number of the memories which will dump */
  1142. dump_num = sdio_readb(card->func, reg, &ret);
  1143. if (ret) {
  1144. BT_ERR("SDIO read memory length err");
  1145. goto done;
  1146. }
  1147. /* Read the length of every memory which will dump */
  1148. for (idx = 0; idx < dump_num; idx++) {
  1149. struct memory_type_mapping *entry = &mem_type_mapping_tbl[idx];
  1150. stat = btmrvl_sdio_rdwr_firmware(priv, doneflag);
  1151. if (stat == RDWR_STATUS_FAILURE)
  1152. goto done;
  1153. memory_size = 0;
  1154. reg = card->reg->fw_dump_start;
  1155. for (i = 0; i < 4; i++) {
  1156. read_reg = sdio_readb(card->func, reg, &ret);
  1157. if (ret) {
  1158. BT_ERR("SDIO read err");
  1159. goto done;
  1160. }
  1161. memory_size |= (read_reg << i*8);
  1162. reg++;
  1163. }
  1164. if (memory_size == 0) {
  1165. BT_INFO("Firmware dump finished!");
  1166. sdio_writeb(card->func, FW_DUMP_READ_DONE,
  1167. card->reg->fw_dump_ctrl, &ret);
  1168. if (ret) {
  1169. BT_ERR("SDIO Write MEMDUMP_FINISH ERR");
  1170. goto done;
  1171. }
  1172. break;
  1173. }
  1174. BT_INFO("%s_SIZE=0x%x", entry->mem_name, memory_size);
  1175. entry->mem_ptr = vzalloc(memory_size + 1);
  1176. entry->mem_size = memory_size;
  1177. if (!entry->mem_ptr) {
  1178. BT_ERR("Vzalloc %s failed", entry->mem_name);
  1179. goto done;
  1180. }
  1181. fw_dump_len += (strlen("========Start dump ") +
  1182. strlen(entry->mem_name) +
  1183. strlen("========\n") +
  1184. (memory_size + 1) +
  1185. strlen("\n========End dump========\n"));
  1186. dbg_ptr = entry->mem_ptr;
  1187. end_ptr = dbg_ptr + memory_size;
  1188. doneflag = entry->done_flag;
  1189. BT_INFO("Start %s output, please wait...",
  1190. entry->mem_name);
  1191. do {
  1192. stat = btmrvl_sdio_rdwr_firmware(priv, doneflag);
  1193. if (stat == RDWR_STATUS_FAILURE)
  1194. goto done;
  1195. reg_start = card->reg->fw_dump_start;
  1196. reg_end = card->reg->fw_dump_end;
  1197. for (reg = reg_start; reg <= reg_end; reg++) {
  1198. *dbg_ptr = sdio_readb(card->func, reg, &ret);
  1199. if (ret) {
  1200. BT_ERR("SDIO read err");
  1201. goto done;
  1202. }
  1203. if (dbg_ptr < end_ptr)
  1204. dbg_ptr++;
  1205. else
  1206. BT_ERR("Allocated buffer not enough");
  1207. }
  1208. if (stat != RDWR_STATUS_DONE) {
  1209. continue;
  1210. } else {
  1211. BT_INFO("%s done: size=0x%tx",
  1212. entry->mem_name,
  1213. dbg_ptr - entry->mem_ptr);
  1214. break;
  1215. }
  1216. } while (1);
  1217. }
  1218. BT_INFO("== btmrvl firmware dump end ==");
  1219. done:
  1220. sdio_release_host(card->func);
  1221. if (fw_dump_len == 0)
  1222. return;
  1223. fw_dump_data = vzalloc(fw_dump_len+1);
  1224. if (!fw_dump_data) {
  1225. BT_ERR("Vzalloc fw_dump_data fail!");
  1226. return;
  1227. }
  1228. fw_dump_ptr = fw_dump_data;
  1229. /* Dump all the memory data into single file, a userspace script will
  1230. * be used to split all the memory data to multiple files
  1231. */
  1232. BT_INFO("== btmrvl firmware dump to /sys/class/devcoredump start");
  1233. for (idx = 0; idx < dump_num; idx++) {
  1234. struct memory_type_mapping *entry = &mem_type_mapping_tbl[idx];
  1235. if (entry->mem_ptr) {
  1236. strcpy(fw_dump_ptr, "========Start dump ");
  1237. fw_dump_ptr += strlen("========Start dump ");
  1238. strcpy(fw_dump_ptr, entry->mem_name);
  1239. fw_dump_ptr += strlen(entry->mem_name);
  1240. strcpy(fw_dump_ptr, "========\n");
  1241. fw_dump_ptr += strlen("========\n");
  1242. memcpy(fw_dump_ptr, entry->mem_ptr, entry->mem_size);
  1243. fw_dump_ptr += entry->mem_size;
  1244. strcpy(fw_dump_ptr, "\n========End dump========\n");
  1245. fw_dump_ptr += strlen("\n========End dump========\n");
  1246. vfree(mem_type_mapping_tbl[idx].mem_ptr);
  1247. mem_type_mapping_tbl[idx].mem_ptr = NULL;
  1248. }
  1249. }
  1250. /* fw_dump_data will be free in device coredump release function
  1251. * after 5 min
  1252. */
  1253. dev_coredumpv(&card->func->dev, fw_dump_data, fw_dump_len, GFP_KERNEL);
  1254. BT_INFO("== btmrvl firmware dump to /sys/class/devcoredump end");
  1255. }
  1256. static int btmrvl_sdio_probe(struct sdio_func *func,
  1257. const struct sdio_device_id *id)
  1258. {
  1259. int ret = 0;
  1260. struct btmrvl_private *priv = NULL;
  1261. struct btmrvl_sdio_card *card = NULL;
  1262. BT_INFO("vendor=0x%x, device=0x%x, class=%d, fn=%d",
  1263. id->vendor, id->device, id->class, func->num);
  1264. card = devm_kzalloc(&func->dev, sizeof(*card), GFP_KERNEL);
  1265. if (!card)
  1266. return -ENOMEM;
  1267. card->func = func;
  1268. if (id->driver_data) {
  1269. struct btmrvl_sdio_device *data = (void *) id->driver_data;
  1270. card->helper = data->helper;
  1271. card->firmware = data->firmware;
  1272. card->reg = data->reg;
  1273. card->sd_blksz_fw_dl = data->sd_blksz_fw_dl;
  1274. card->support_pscan_win_report = data->support_pscan_win_report;
  1275. card->supports_fw_dump = data->supports_fw_dump;
  1276. }
  1277. if (btmrvl_sdio_register_dev(card) < 0) {
  1278. BT_ERR("Failed to register BT device!");
  1279. return -ENODEV;
  1280. }
  1281. /* Disable the interrupts on the card */
  1282. btmrvl_sdio_disable_host_int(card);
  1283. if (btmrvl_sdio_download_fw(card)) {
  1284. BT_ERR("Downloading firmware failed!");
  1285. ret = -ENODEV;
  1286. goto unreg_dev;
  1287. }
  1288. btmrvl_sdio_enable_host_int(card);
  1289. /* Device tree node parsing and platform specific configuration*/
  1290. btmrvl_sdio_probe_of(&func->dev, card);
  1291. priv = btmrvl_add_card(card);
  1292. if (!priv) {
  1293. BT_ERR("Initializing card failed!");
  1294. ret = -ENODEV;
  1295. goto disable_host_int;
  1296. }
  1297. card->priv = priv;
  1298. /* Initialize the interface specific function pointers */
  1299. priv->hw_host_to_card = btmrvl_sdio_host_to_card;
  1300. priv->hw_wakeup_firmware = btmrvl_sdio_wakeup_fw;
  1301. priv->hw_process_int_status = btmrvl_sdio_process_int_status;
  1302. if (btmrvl_register_hdev(priv)) {
  1303. BT_ERR("Register hdev failed!");
  1304. ret = -ENODEV;
  1305. goto disable_host_int;
  1306. }
  1307. return 0;
  1308. disable_host_int:
  1309. btmrvl_sdio_disable_host_int(card);
  1310. unreg_dev:
  1311. btmrvl_sdio_unregister_dev(card);
  1312. return ret;
  1313. }
  1314. static void btmrvl_sdio_remove(struct sdio_func *func)
  1315. {
  1316. struct btmrvl_sdio_card *card;
  1317. if (func) {
  1318. card = sdio_get_drvdata(func);
  1319. if (card) {
  1320. /* Send SHUTDOWN command & disable interrupt
  1321. * if user removes the module.
  1322. */
  1323. if (user_rmmod) {
  1324. btmrvl_send_module_cfg_cmd(card->priv,
  1325. MODULE_SHUTDOWN_REQ);
  1326. btmrvl_sdio_disable_host_int(card);
  1327. }
  1328. BT_DBG("unregister dev");
  1329. card->priv->surprise_removed = true;
  1330. btmrvl_sdio_unregister_dev(card);
  1331. btmrvl_remove_card(card->priv);
  1332. }
  1333. }
  1334. }
  1335. static int btmrvl_sdio_suspend(struct device *dev)
  1336. {
  1337. struct sdio_func *func = dev_to_sdio_func(dev);
  1338. struct btmrvl_sdio_card *card;
  1339. struct btmrvl_private *priv;
  1340. mmc_pm_flag_t pm_flags;
  1341. struct hci_dev *hcidev;
  1342. if (func) {
  1343. pm_flags = sdio_get_host_pm_caps(func);
  1344. BT_DBG("%s: suspend: PM flags = 0x%x", sdio_func_id(func),
  1345. pm_flags);
  1346. if (!(pm_flags & MMC_PM_KEEP_POWER)) {
  1347. BT_ERR("%s: cannot remain alive while suspended",
  1348. sdio_func_id(func));
  1349. return -ENOSYS;
  1350. }
  1351. card = sdio_get_drvdata(func);
  1352. if (!card || !card->priv) {
  1353. BT_ERR("card or priv structure is not valid");
  1354. return 0;
  1355. }
  1356. } else {
  1357. BT_ERR("sdio_func is not specified");
  1358. return 0;
  1359. }
  1360. /* Enable platform specific wakeup interrupt */
  1361. if (card->plt_wake_cfg && card->plt_wake_cfg->irq_bt >= 0 &&
  1362. device_may_wakeup(dev)) {
  1363. card->plt_wake_cfg->wake_by_bt = false;
  1364. enable_irq(card->plt_wake_cfg->irq_bt);
  1365. enable_irq_wake(card->plt_wake_cfg->irq_bt);
  1366. }
  1367. priv = card->priv;
  1368. priv->adapter->is_suspending = true;
  1369. hcidev = priv->btmrvl_dev.hcidev;
  1370. BT_DBG("%s: SDIO suspend", hcidev->name);
  1371. hci_suspend_dev(hcidev);
  1372. if (priv->adapter->hs_state != HS_ACTIVATED) {
  1373. if (btmrvl_enable_hs(priv)) {
  1374. BT_ERR("HS not activated, suspend failed!");
  1375. /* Disable platform specific wakeup interrupt */
  1376. if (card->plt_wake_cfg &&
  1377. card->plt_wake_cfg->irq_bt >= 0 &&
  1378. device_may_wakeup(dev)) {
  1379. disable_irq_wake(card->plt_wake_cfg->irq_bt);
  1380. disable_irq(card->plt_wake_cfg->irq_bt);
  1381. }
  1382. priv->adapter->is_suspending = false;
  1383. return -EBUSY;
  1384. }
  1385. }
  1386. priv->adapter->is_suspending = false;
  1387. priv->adapter->is_suspended = true;
  1388. /* We will keep the power when hs enabled successfully */
  1389. if (priv->adapter->hs_state == HS_ACTIVATED) {
  1390. BT_DBG("suspend with MMC_PM_KEEP_POWER");
  1391. return sdio_set_host_pm_flags(func, MMC_PM_KEEP_POWER);
  1392. }
  1393. BT_DBG("suspend without MMC_PM_KEEP_POWER");
  1394. return 0;
  1395. }
  1396. static int btmrvl_sdio_resume(struct device *dev)
  1397. {
  1398. struct sdio_func *func = dev_to_sdio_func(dev);
  1399. struct btmrvl_sdio_card *card;
  1400. struct btmrvl_private *priv;
  1401. mmc_pm_flag_t pm_flags;
  1402. struct hci_dev *hcidev;
  1403. if (func) {
  1404. pm_flags = sdio_get_host_pm_caps(func);
  1405. BT_DBG("%s: resume: PM flags = 0x%x", sdio_func_id(func),
  1406. pm_flags);
  1407. card = sdio_get_drvdata(func);
  1408. if (!card || !card->priv) {
  1409. BT_ERR("card or priv structure is not valid");
  1410. return 0;
  1411. }
  1412. } else {
  1413. BT_ERR("sdio_func is not specified");
  1414. return 0;
  1415. }
  1416. priv = card->priv;
  1417. if (!priv->adapter->is_suspended) {
  1418. BT_DBG("device already resumed");
  1419. return 0;
  1420. }
  1421. priv->hw_wakeup_firmware(priv);
  1422. priv->adapter->hs_state = HS_DEACTIVATED;
  1423. hcidev = priv->btmrvl_dev.hcidev;
  1424. BT_DBG("%s: HS DEACTIVATED in resume!", hcidev->name);
  1425. priv->adapter->is_suspended = false;
  1426. BT_DBG("%s: SDIO resume", hcidev->name);
  1427. hci_resume_dev(hcidev);
  1428. /* Disable platform specific wakeup interrupt */
  1429. if (card->plt_wake_cfg && card->plt_wake_cfg->irq_bt >= 0 &&
  1430. device_may_wakeup(dev)) {
  1431. disable_irq_wake(card->plt_wake_cfg->irq_bt);
  1432. disable_irq(card->plt_wake_cfg->irq_bt);
  1433. if (card->plt_wake_cfg->wake_by_bt)
  1434. /* Undo our disable, since interrupt handler already
  1435. * did this.
  1436. */
  1437. enable_irq(card->plt_wake_cfg->irq_bt);
  1438. }
  1439. return 0;
  1440. }
  1441. static const struct dev_pm_ops btmrvl_sdio_pm_ops = {
  1442. .suspend = btmrvl_sdio_suspend,
  1443. .resume = btmrvl_sdio_resume,
  1444. };
  1445. static struct sdio_driver bt_mrvl_sdio = {
  1446. .name = "btmrvl_sdio",
  1447. .id_table = btmrvl_sdio_ids,
  1448. .probe = btmrvl_sdio_probe,
  1449. .remove = btmrvl_sdio_remove,
  1450. .drv = {
  1451. .owner = THIS_MODULE,
  1452. .coredump = btmrvl_sdio_coredump,
  1453. .pm = &btmrvl_sdio_pm_ops,
  1454. }
  1455. };
  1456. static int __init btmrvl_sdio_init_module(void)
  1457. {
  1458. if (sdio_register_driver(&bt_mrvl_sdio) != 0) {
  1459. BT_ERR("SDIO Driver Registration Failed");
  1460. return -ENODEV;
  1461. }
  1462. /* Clear the flag in case user removes the card. */
  1463. user_rmmod = 0;
  1464. return 0;
  1465. }
  1466. static void __exit btmrvl_sdio_exit_module(void)
  1467. {
  1468. /* Set the flag as user is removing this module. */
  1469. user_rmmod = 1;
  1470. sdio_unregister_driver(&bt_mrvl_sdio);
  1471. }
  1472. module_init(btmrvl_sdio_init_module);
  1473. module_exit(btmrvl_sdio_exit_module);
  1474. MODULE_AUTHOR("Marvell International Ltd.");
  1475. MODULE_DESCRIPTION("Marvell BT-over-SDIO driver ver " VERSION);
  1476. MODULE_VERSION(VERSION);
  1477. MODULE_LICENSE("GPL v2");
  1478. MODULE_FIRMWARE("mrvl/sd8688_helper.bin");
  1479. MODULE_FIRMWARE("mrvl/sd8688.bin");
  1480. MODULE_FIRMWARE("mrvl/sd8787_uapsta.bin");
  1481. MODULE_FIRMWARE("mrvl/sd8797_uapsta.bin");
  1482. MODULE_FIRMWARE("mrvl/sd8887_uapsta.bin");
  1483. MODULE_FIRMWARE("mrvl/sd8897_uapsta.bin");
  1484. MODULE_FIRMWARE("mrvl/sdsd8977_combo_v2.bin");
  1485. MODULE_FIRMWARE("mrvl/sd8987_uapsta.bin");
  1486. MODULE_FIRMWARE("mrvl/sdsd8997_combo_v4.bin");