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Commit | Line | Data |
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1802d0be | 1 | // SPDX-License-Identifier: GPL-2.0-only |
c869f77d JK |
2 | /* |
3 | * (c) Copyright 2002-2010, Ralink Technology, Inc. | |
4 | * Copyright (C) 2014 Felix Fietkau <nbd@openwrt.org> | |
5 | * Copyright (C) 2015 Jakub Kicinski <kubakici@wp.pl> | |
c869f77d JK |
6 | */ |
7 | ||
8 | #include <linux/kernel.h> | |
9 | #include <linux/firmware.h> | |
10 | #include <linux/delay.h> | |
11 | #include <linux/usb.h> | |
12 | #include <linux/skbuff.h> | |
13 | ||
14 | #include "mt7601u.h" | |
15 | #include "dma.h" | |
16 | #include "mcu.h" | |
17 | #include "usb.h" | |
18 | #include "trace.h" | |
19 | ||
20 | #define MCU_FW_URB_MAX_PAYLOAD 0x3800 | |
21 | #define MCU_FW_URB_SIZE (MCU_FW_URB_MAX_PAYLOAD + 12) | |
22 | #define MCU_RESP_URB_SIZE 1024 | |
23 | ||
24 | static inline int firmware_running(struct mt7601u_dev *dev) | |
25 | { | |
26 | return mt7601u_rr(dev, MT_MCU_COM_REG0) == 1; | |
27 | } | |
28 | ||
29 | static inline void skb_put_le32(struct sk_buff *skb, u32 val) | |
30 | { | |
31 | put_unaligned_le32(val, skb_put(skb, 4)); | |
32 | } | |
33 | ||
34 | static inline void mt7601u_dma_skb_wrap_cmd(struct sk_buff *skb, | |
35 | u8 seq, enum mcu_cmd cmd) | |
36 | { | |
37 | WARN_ON(mt7601u_dma_skb_wrap(skb, CPU_TX_PORT, DMA_COMMAND, | |
d43af505 JK |
38 | FIELD_PREP(MT_TXD_CMD_INFO_SEQ, seq) | |
39 | FIELD_PREP(MT_TXD_CMD_INFO_TYPE, cmd))); | |
c869f77d JK |
40 | } |
41 | ||
42 | static inline void trace_mt_mcu_msg_send_cs(struct mt7601u_dev *dev, | |
43 | struct sk_buff *skb, bool need_resp) | |
44 | { | |
45 | u32 i, csum = 0; | |
46 | ||
47 | for (i = 0; i < skb->len / 4; i++) | |
48 | csum ^= get_unaligned_le32(skb->data + i * 4); | |
49 | ||
50 | trace_mt_mcu_msg_send(dev, skb, csum, need_resp); | |
51 | } | |
52 | ||
2f04652f | 53 | static struct sk_buff *mt7601u_mcu_msg_alloc(const void *data, int len) |
c869f77d JK |
54 | { |
55 | struct sk_buff *skb; | |
56 | ||
57 | WARN_ON(len % 4); /* if length is not divisible by 4 we need to pad */ | |
58 | ||
59 | skb = alloc_skb(len + MT_DMA_HDR_LEN + 4, GFP_KERNEL); | |
5fb01e91 PB |
60 | if (skb) { |
61 | skb_reserve(skb, MT_DMA_HDR_LEN); | |
59ae1d12 | 62 | skb_put_data(skb, data, len); |
5fb01e91 | 63 | } |
c869f77d JK |
64 | |
65 | return skb; | |
66 | } | |
67 | ||
68 | static int mt7601u_mcu_wait_resp(struct mt7601u_dev *dev, u8 seq) | |
69 | { | |
70 | struct urb *urb = dev->mcu.resp.urb; | |
71 | u32 rxfce; | |
72 | int urb_status, ret, i = 5; | |
73 | ||
74 | while (i--) { | |
75 | if (!wait_for_completion_timeout(&dev->mcu.resp_cmpl, | |
76 | msecs_to_jiffies(300))) { | |
77 | dev_warn(dev->dev, "Warning: %s retrying\n", __func__); | |
78 | continue; | |
79 | } | |
80 | ||
81 | /* Make copies of important data before reusing the urb */ | |
82 | rxfce = get_unaligned_le32(dev->mcu.resp.buf); | |
83 | urb_status = urb->status * mt7601u_urb_has_error(urb); | |
84 | ||
85 | ret = mt7601u_usb_submit_buf(dev, USB_DIR_IN, MT_EP_IN_CMD_RESP, | |
86 | &dev->mcu.resp, GFP_KERNEL, | |
87 | mt7601u_complete_urb, | |
88 | &dev->mcu.resp_cmpl); | |
89 | if (ret) | |
90 | return ret; | |
91 | ||
92 | if (urb_status) | |
93 | dev_err(dev->dev, "Error: MCU resp urb failed:%d\n", | |
94 | urb_status); | |
95 | ||
d43af505 JK |
96 | if (FIELD_GET(MT_RXD_CMD_INFO_CMD_SEQ, rxfce) == seq && |
97 | FIELD_GET(MT_RXD_CMD_INFO_EVT_TYPE, rxfce) == CMD_DONE) | |
c869f77d JK |
98 | return 0; |
99 | ||
d43af505 JK |
100 | dev_err(dev->dev, "Error: MCU resp evt:%lx seq:%hhx-%lx!\n", |
101 | FIELD_GET(MT_RXD_CMD_INFO_EVT_TYPE, rxfce), | |
102 | seq, FIELD_GET(MT_RXD_CMD_INFO_CMD_SEQ, rxfce)); | |
c869f77d JK |
103 | } |
104 | ||
105 | dev_err(dev->dev, "Error: %s timed out\n", __func__); | |
106 | return -ETIMEDOUT; | |
107 | } | |
108 | ||
109 | static int | |
110 | mt7601u_mcu_msg_send(struct mt7601u_dev *dev, struct sk_buff *skb, | |
111 | enum mcu_cmd cmd, bool wait_resp) | |
112 | { | |
113 | struct usb_device *usb_dev = mt7601u_to_usb_dev(dev); | |
114 | unsigned cmd_pipe = usb_sndbulkpipe(usb_dev, | |
115 | dev->out_eps[MT_EP_OUT_INBAND_CMD]); | |
116 | int sent, ret; | |
117 | u8 seq = 0; | |
118 | ||
119 | if (test_bit(MT7601U_STATE_REMOVED, &dev->state)) | |
120 | return 0; | |
121 | ||
122 | mutex_lock(&dev->mcu.mutex); | |
123 | ||
124 | if (wait_resp) | |
125 | while (!seq) | |
126 | seq = ++dev->mcu.msg_seq & 0xf; | |
127 | ||
128 | mt7601u_dma_skb_wrap_cmd(skb, seq, cmd); | |
129 | ||
130 | if (dev->mcu.resp_cmpl.done) | |
131 | dev_err(dev->dev, "Error: MCU response pre-completed!\n"); | |
132 | ||
133 | trace_mt_mcu_msg_send_cs(dev, skb, wait_resp); | |
134 | trace_mt_submit_urb_sync(dev, cmd_pipe, skb->len); | |
135 | ret = usb_bulk_msg(usb_dev, cmd_pipe, skb->data, skb->len, &sent, 500); | |
136 | if (ret) { | |
137 | dev_err(dev->dev, "Error: send MCU cmd failed:%d\n", ret); | |
138 | goto out; | |
139 | } | |
140 | if (sent != skb->len) | |
141 | dev_err(dev->dev, "Error: %s sent != skb->len\n", __func__); | |
142 | ||
143 | if (wait_resp) | |
144 | ret = mt7601u_mcu_wait_resp(dev, seq); | |
145 | out: | |
146 | mutex_unlock(&dev->mcu.mutex); | |
147 | ||
148 | consume_skb(skb); | |
149 | ||
150 | return ret; | |
151 | } | |
152 | ||
153 | static int mt7601u_mcu_function_select(struct mt7601u_dev *dev, | |
154 | enum mcu_function func, u32 val) | |
155 | { | |
156 | struct sk_buff *skb; | |
157 | struct { | |
158 | __le32 id; | |
159 | __le32 value; | |
160 | } __packed __aligned(4) msg = { | |
161 | .id = cpu_to_le32(func), | |
162 | .value = cpu_to_le32(val), | |
163 | }; | |
164 | ||
2f04652f | 165 | skb = mt7601u_mcu_msg_alloc(&msg, sizeof(msg)); |
5fb01e91 PB |
166 | if (!skb) |
167 | return -ENOMEM; | |
c869f77d JK |
168 | return mt7601u_mcu_msg_send(dev, skb, CMD_FUN_SET_OP, func == 5); |
169 | } | |
170 | ||
171 | int mt7601u_mcu_tssi_read_kick(struct mt7601u_dev *dev, int use_hvga) | |
172 | { | |
173 | int ret; | |
174 | ||
175 | if (!test_bit(MT7601U_STATE_MCU_RUNNING, &dev->state)) | |
176 | return 0; | |
177 | ||
178 | ret = mt7601u_mcu_function_select(dev, ATOMIC_TSSI_SETTING, | |
179 | use_hvga); | |
180 | if (ret) { | |
181 | dev_warn(dev->dev, "Warning: MCU TSSI read kick failed\n"); | |
182 | return ret; | |
183 | } | |
184 | ||
185 | dev->tssi_read_trig = true; | |
186 | ||
187 | return 0; | |
188 | } | |
189 | ||
190 | int | |
191 | mt7601u_mcu_calibrate(struct mt7601u_dev *dev, enum mcu_calibrate cal, u32 val) | |
192 | { | |
193 | struct sk_buff *skb; | |
194 | struct { | |
195 | __le32 id; | |
196 | __le32 value; | |
197 | } __packed __aligned(4) msg = { | |
198 | .id = cpu_to_le32(cal), | |
199 | .value = cpu_to_le32(val), | |
200 | }; | |
201 | ||
2f04652f | 202 | skb = mt7601u_mcu_msg_alloc(&msg, sizeof(msg)); |
5fb01e91 PB |
203 | if (!skb) |
204 | return -ENOMEM; | |
c869f77d JK |
205 | return mt7601u_mcu_msg_send(dev, skb, CMD_CALIBRATION_OP, true); |
206 | } | |
207 | ||
208 | int mt7601u_write_reg_pairs(struct mt7601u_dev *dev, u32 base, | |
209 | const struct mt76_reg_pair *data, int n) | |
210 | { | |
211 | const int max_vals_per_cmd = INBAND_PACKET_MAX_LEN / 8; | |
212 | struct sk_buff *skb; | |
213 | int cnt, i, ret; | |
214 | ||
215 | if (!n) | |
216 | return 0; | |
217 | ||
218 | cnt = min(max_vals_per_cmd, n); | |
219 | ||
220 | skb = alloc_skb(cnt * 8 + MT_DMA_HDR_LEN + 4, GFP_KERNEL); | |
221 | if (!skb) | |
222 | return -ENOMEM; | |
223 | skb_reserve(skb, MT_DMA_HDR_LEN); | |
224 | ||
225 | for (i = 0; i < cnt; i++) { | |
226 | skb_put_le32(skb, base + data[i].reg); | |
227 | skb_put_le32(skb, data[i].value); | |
228 | } | |
229 | ||
230 | ret = mt7601u_mcu_msg_send(dev, skb, CMD_RANDOM_WRITE, cnt == n); | |
231 | if (ret) | |
232 | return ret; | |
233 | ||
234 | return mt7601u_write_reg_pairs(dev, base, data + cnt, n - cnt); | |
235 | } | |
236 | ||
237 | int mt7601u_burst_write_regs(struct mt7601u_dev *dev, u32 offset, | |
238 | const u32 *data, int n) | |
239 | { | |
240 | const int max_regs_per_cmd = INBAND_PACKET_MAX_LEN / 4 - 1; | |
241 | struct sk_buff *skb; | |
242 | int cnt, i, ret; | |
243 | ||
244 | if (!n) | |
245 | return 0; | |
246 | ||
247 | cnt = min(max_regs_per_cmd, n); | |
248 | ||
249 | skb = alloc_skb(cnt * 4 + MT_DMA_HDR_LEN + 4, GFP_KERNEL); | |
250 | if (!skb) | |
251 | return -ENOMEM; | |
252 | skb_reserve(skb, MT_DMA_HDR_LEN); | |
253 | ||
254 | skb_put_le32(skb, MT_MCU_MEMMAP_WLAN + offset); | |
255 | for (i = 0; i < cnt; i++) | |
256 | skb_put_le32(skb, data[i]); | |
257 | ||
258 | ret = mt7601u_mcu_msg_send(dev, skb, CMD_BURST_WRITE, cnt == n); | |
259 | if (ret) | |
260 | return ret; | |
261 | ||
262 | return mt7601u_burst_write_regs(dev, offset + cnt * 4, | |
263 | data + cnt, n - cnt); | |
264 | } | |
265 | ||
266 | struct mt76_fw_header { | |
267 | __le32 ilm_len; | |
268 | __le32 dlm_len; | |
269 | __le16 build_ver; | |
270 | __le16 fw_ver; | |
271 | u8 pad[4]; | |
272 | char build_time[16]; | |
273 | }; | |
274 | ||
275 | struct mt76_fw { | |
276 | struct mt76_fw_header hdr; | |
277 | u8 ivb[MT_MCU_IVB_SIZE]; | |
278 | u8 ilm[]; | |
279 | }; | |
280 | ||
281 | static int __mt7601u_dma_fw(struct mt7601u_dev *dev, | |
282 | const struct mt7601u_dma_buf *dma_buf, | |
283 | const void *data, u32 len, u32 dst_addr) | |
284 | { | |
285 | DECLARE_COMPLETION_ONSTACK(cmpl); | |
286 | struct mt7601u_dma_buf buf = *dma_buf; /* we need to fake length */ | |
287 | __le32 reg; | |
288 | u32 val; | |
289 | int ret; | |
290 | ||
d43af505 JK |
291 | reg = cpu_to_le32(FIELD_PREP(MT_TXD_INFO_TYPE, DMA_PACKET) | |
292 | FIELD_PREP(MT_TXD_INFO_D_PORT, CPU_TX_PORT) | | |
293 | FIELD_PREP(MT_TXD_INFO_LEN, len)); | |
c869f77d JK |
294 | memcpy(buf.buf, ®, sizeof(reg)); |
295 | memcpy(buf.buf + sizeof(reg), data, len); | |
296 | memset(buf.buf + sizeof(reg) + len, 0, 8); | |
297 | ||
298 | ret = mt7601u_vendor_single_wr(dev, MT_VEND_WRITE_FCE, | |
299 | MT_FCE_DMA_ADDR, dst_addr); | |
300 | if (ret) | |
301 | return ret; | |
302 | len = roundup(len, 4); | |
303 | ret = mt7601u_vendor_single_wr(dev, MT_VEND_WRITE_FCE, | |
304 | MT_FCE_DMA_LEN, len << 16); | |
305 | if (ret) | |
306 | return ret; | |
307 | ||
308 | buf.len = MT_DMA_HDR_LEN + len + 4; | |
309 | ret = mt7601u_usb_submit_buf(dev, USB_DIR_OUT, MT_EP_OUT_INBAND_CMD, | |
310 | &buf, GFP_KERNEL, | |
311 | mt7601u_complete_urb, &cmpl); | |
312 | if (ret) | |
313 | return ret; | |
314 | ||
315 | if (!wait_for_completion_timeout(&cmpl, msecs_to_jiffies(1000))) { | |
316 | dev_err(dev->dev, "Error: firmware upload timed out\n"); | |
317 | usb_kill_urb(buf.urb); | |
318 | return -ETIMEDOUT; | |
319 | } | |
320 | if (mt7601u_urb_has_error(buf.urb)) { | |
321 | dev_err(dev->dev, "Error: firmware upload urb failed:%d\n", | |
322 | buf.urb->status); | |
323 | return buf.urb->status; | |
324 | } | |
325 | ||
326 | val = mt7601u_rr(dev, MT_TX_CPU_FROM_FCE_CPU_DESC_IDX); | |
327 | val++; | |
328 | mt7601u_wr(dev, MT_TX_CPU_FROM_FCE_CPU_DESC_IDX, val); | |
329 | ||
330 | return 0; | |
331 | } | |
332 | ||
333 | static int | |
334 | mt7601u_dma_fw(struct mt7601u_dev *dev, struct mt7601u_dma_buf *dma_buf, | |
335 | const void *data, int len, u32 dst_addr) | |
336 | { | |
337 | int n, ret; | |
338 | ||
339 | if (len == 0) | |
340 | return 0; | |
341 | ||
342 | n = min(MCU_FW_URB_MAX_PAYLOAD, len); | |
343 | ret = __mt7601u_dma_fw(dev, dma_buf, data, n, dst_addr); | |
344 | if (ret) | |
345 | return ret; | |
346 | ||
347 | if (!mt76_poll_msec(dev, MT_MCU_COM_REG1, BIT(31), BIT(31), 500)) | |
348 | return -ETIMEDOUT; | |
349 | ||
350 | return mt7601u_dma_fw(dev, dma_buf, data + n, len - n, dst_addr + n); | |
351 | } | |
352 | ||
353 | static int | |
354 | mt7601u_upload_firmware(struct mt7601u_dev *dev, const struct mt76_fw *fw) | |
355 | { | |
356 | struct mt7601u_dma_buf dma_buf; | |
357 | void *ivb; | |
358 | u32 ilm_len, dlm_len; | |
359 | int i, ret; | |
360 | ||
361 | ivb = kmemdup(fw->ivb, sizeof(fw->ivb), GFP_KERNEL); | |
2b02a36d CIK |
362 | if (!ivb) |
363 | return -ENOMEM; | |
364 | if (mt7601u_usb_alloc_buf(dev, MCU_FW_URB_SIZE, &dma_buf)) { | |
c869f77d JK |
365 | ret = -ENOMEM; |
366 | goto error; | |
367 | } | |
368 | ||
369 | ilm_len = le32_to_cpu(fw->hdr.ilm_len) - sizeof(fw->ivb); | |
370 | dev_dbg(dev->dev, "loading FW - ILM %u + IVB %zu\n", | |
371 | ilm_len, sizeof(fw->ivb)); | |
372 | ret = mt7601u_dma_fw(dev, &dma_buf, fw->ilm, ilm_len, sizeof(fw->ivb)); | |
373 | if (ret) | |
374 | goto error; | |
375 | ||
376 | dlm_len = le32_to_cpu(fw->hdr.dlm_len); | |
377 | dev_dbg(dev->dev, "loading FW - DLM %u\n", dlm_len); | |
378 | ret = mt7601u_dma_fw(dev, &dma_buf, fw->ilm + ilm_len, | |
379 | dlm_len, MT_MCU_DLM_OFFSET); | |
380 | if (ret) | |
381 | goto error; | |
382 | ||
383 | ret = mt7601u_vendor_request(dev, MT_VEND_DEV_MODE, USB_DIR_OUT, | |
384 | 0x12, 0, ivb, sizeof(fw->ivb)); | |
385 | if (ret < 0) | |
386 | goto error; | |
387 | ret = 0; | |
388 | ||
389 | for (i = 100; i && !firmware_running(dev); i--) | |
390 | msleep(10); | |
391 | if (!i) { | |
392 | ret = -ETIMEDOUT; | |
393 | goto error; | |
394 | } | |
395 | ||
396 | dev_dbg(dev->dev, "Firmware running!\n"); | |
397 | error: | |
398 | kfree(ivb); | |
399 | mt7601u_usb_free_buf(dev, &dma_buf); | |
400 | ||
401 | return ret; | |
402 | } | |
403 | ||
404 | static int mt7601u_load_firmware(struct mt7601u_dev *dev) | |
405 | { | |
406 | const struct firmware *fw; | |
407 | const struct mt76_fw_header *hdr; | |
408 | int len, ret; | |
409 | u32 val; | |
410 | ||
411 | mt7601u_wr(dev, MT_USB_DMA_CFG, (MT_USB_DMA_CFG_RX_BULK_EN | | |
412 | MT_USB_DMA_CFG_TX_BULK_EN)); | |
413 | ||
414 | if (firmware_running(dev)) | |
d723522b | 415 | return firmware_request_cache(dev->dev, MT7601U_FIRMWARE); |
c869f77d JK |
416 | |
417 | ret = request_firmware(&fw, MT7601U_FIRMWARE, dev->dev); | |
418 | if (ret) | |
419 | return ret; | |
420 | ||
421 | if (!fw || !fw->data || fw->size < sizeof(*hdr)) | |
422 | goto err_inv_fw; | |
423 | ||
424 | hdr = (const struct mt76_fw_header *) fw->data; | |
425 | ||
426 | if (le32_to_cpu(hdr->ilm_len) <= MT_MCU_IVB_SIZE) | |
427 | goto err_inv_fw; | |
428 | ||
429 | len = sizeof(*hdr); | |
430 | len += le32_to_cpu(hdr->ilm_len); | |
431 | len += le32_to_cpu(hdr->dlm_len); | |
432 | ||
433 | if (fw->size != len) | |
434 | goto err_inv_fw; | |
435 | ||
436 | val = le16_to_cpu(hdr->fw_ver); | |
437 | dev_info(dev->dev, | |
438 | "Firmware Version: %d.%d.%02d Build: %x Build time: %.16s\n", | |
439 | (val >> 12) & 0xf, (val >> 8) & 0xf, val & 0xf, | |
440 | le16_to_cpu(hdr->build_ver), hdr->build_time); | |
441 | ||
442 | len = le32_to_cpu(hdr->ilm_len); | |
443 | ||
444 | mt7601u_wr(dev, 0x94c, 0); | |
445 | mt7601u_wr(dev, MT_FCE_PSE_CTRL, 0); | |
446 | ||
447 | mt7601u_vendor_reset(dev); | |
448 | msleep(5); | |
449 | ||
450 | mt7601u_wr(dev, 0xa44, 0); | |
451 | mt7601u_wr(dev, 0x230, 0x84210); | |
452 | mt7601u_wr(dev, 0x400, 0x80c00); | |
453 | mt7601u_wr(dev, 0x800, 1); | |
454 | ||
455 | mt7601u_rmw(dev, MT_PBF_CFG, 0, (MT_PBF_CFG_TX0Q_EN | | |
456 | MT_PBF_CFG_TX1Q_EN | | |
457 | MT_PBF_CFG_TX2Q_EN | | |
458 | MT_PBF_CFG_TX3Q_EN)); | |
459 | ||
460 | mt7601u_wr(dev, MT_FCE_PSE_CTRL, 1); | |
461 | ||
462 | mt7601u_wr(dev, MT_USB_DMA_CFG, (MT_USB_DMA_CFG_RX_BULK_EN | | |
463 | MT_USB_DMA_CFG_TX_BULK_EN)); | |
464 | val = mt76_set(dev, MT_USB_DMA_CFG, MT_USB_DMA_CFG_TX_CLR); | |
465 | val &= ~MT_USB_DMA_CFG_TX_CLR; | |
466 | mt7601u_wr(dev, MT_USB_DMA_CFG, val); | |
467 | ||
468 | /* FCE tx_fs_base_ptr */ | |
469 | mt7601u_wr(dev, MT_TX_CPU_FROM_FCE_BASE_PTR, 0x400230); | |
470 | /* FCE tx_fs_max_cnt */ | |
471 | mt7601u_wr(dev, MT_TX_CPU_FROM_FCE_MAX_COUNT, 1); | |
472 | /* FCE pdma enable */ | |
473 | mt7601u_wr(dev, MT_FCE_PDMA_GLOBAL_CONF, 0x44); | |
474 | /* FCE skip_fs_en */ | |
475 | mt7601u_wr(dev, MT_FCE_SKIP_FS, 3); | |
476 | ||
477 | ret = mt7601u_upload_firmware(dev, (const struct mt76_fw *)fw->data); | |
478 | ||
479 | release_firmware(fw); | |
480 | ||
481 | return ret; | |
482 | ||
483 | err_inv_fw: | |
484 | dev_err(dev->dev, "Invalid firmware image\n"); | |
485 | release_firmware(fw); | |
486 | return -ENOENT; | |
487 | } | |
488 | ||
489 | int mt7601u_mcu_init(struct mt7601u_dev *dev) | |
490 | { | |
491 | int ret; | |
492 | ||
493 | mutex_init(&dev->mcu.mutex); | |
494 | ||
495 | ret = mt7601u_load_firmware(dev); | |
496 | if (ret) | |
497 | return ret; | |
498 | ||
499 | set_bit(MT7601U_STATE_MCU_RUNNING, &dev->state); | |
500 | ||
501 | return 0; | |
502 | } | |
503 | ||
504 | int mt7601u_mcu_cmd_init(struct mt7601u_dev *dev) | |
505 | { | |
506 | int ret; | |
507 | ||
508 | ret = mt7601u_mcu_function_select(dev, Q_SELECT, 1); | |
509 | if (ret) | |
510 | return ret; | |
511 | ||
512 | init_completion(&dev->mcu.resp_cmpl); | |
513 | if (mt7601u_usb_alloc_buf(dev, MCU_RESP_URB_SIZE, &dev->mcu.resp)) { | |
514 | mt7601u_usb_free_buf(dev, &dev->mcu.resp); | |
515 | return -ENOMEM; | |
516 | } | |
517 | ||
518 | ret = mt7601u_usb_submit_buf(dev, USB_DIR_IN, MT_EP_IN_CMD_RESP, | |
519 | &dev->mcu.resp, GFP_KERNEL, | |
520 | mt7601u_complete_urb, &dev->mcu.resp_cmpl); | |
521 | if (ret) { | |
522 | mt7601u_usb_free_buf(dev, &dev->mcu.resp); | |
523 | return ret; | |
524 | } | |
525 | ||
526 | return 0; | |
527 | } | |
528 | ||
529 | void mt7601u_mcu_cmd_deinit(struct mt7601u_dev *dev) | |
530 | { | |
531 | usb_kill_urb(dev->mcu.resp.urb); | |
532 | mt7601u_usb_free_buf(dev, &dev->mcu.resp); | |
533 | } |