1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * RTL8XXXU mac80211 USB driver - 8723a specific subdriver
4 *
5 * Copyright (c) 2014 - 2017 Jes Sorensen <Jes.Sorensen@gmail.com>
6 *
7 * Portions, notably calibration code:
8 * Copyright(c) 2007 - 2011 Realtek Corporation. All rights reserved.
9 *
10 * This driver was written as a replacement for the vendor provided
11 * rtl8723au driver. As the Realtek 8xxx chips are very similar in
12 * their programming interface, I have started adding support for
13 * additional 8xxx chips like the 8192cu, 8188cus, etc.
14 */
15
16#include <linux/init.h>
17#include <linux/kernel.h>
18#include <linux/sched.h>
19#include <linux/errno.h>
20#include <linux/slab.h>
21#include <linux/module.h>
22#include <linux/spinlock.h>
23#include <linux/list.h>
24#include <linux/usb.h>
25#include <linux/netdevice.h>
26#include <linux/etherdevice.h>
27#include <linux/ethtool.h>
28#include <linux/wireless.h>
29#include <linux/firmware.h>
30#include <linux/moduleparam.h>
31#include <net/mac80211.h>
32#include "rtl8xxxu.h"
33#include "rtl8xxxu_regs.h"
34
35static struct rtl8xxxu_power_base rtl8723a_power_base = {
36 .reg_0e00 = 0x0a0c0c0c,
37 .reg_0e04 = 0x02040608,
38 .reg_0e08 = 0x00000000,
39 .reg_086c = 0x00000000,
40
41 .reg_0e10 = 0x0a0c0d0e,
42 .reg_0e14 = 0x02040608,
43 .reg_0e18 = 0x0a0c0d0e,
44 .reg_0e1c = 0x02040608,
45
46 .reg_0830 = 0x0a0c0c0c,
47 .reg_0834 = 0x02040608,
48 .reg_0838 = 0x00000000,
49 .reg_086c_2 = 0x00000000,
50
51 .reg_083c = 0x0a0c0d0e,
52 .reg_0848 = 0x02040608,
53 .reg_084c = 0x0a0c0d0e,
54 .reg_0868 = 0x02040608,
55};
56
57static const struct rtl8xxxu_rfregval rtl8723au_radioa_1t_init_table[] = {
58 {0x00, 0x00030159}, {0x01, 0x00031284},
59 {0x02, 0x00098000}, {0x03, 0x00039c63},
60 {0x04, 0x000210e7}, {0x09, 0x0002044f},
61 {0x0a, 0x0001a3f1}, {0x0b, 0x00014787},
62 {0x0c, 0x000896fe}, {0x0d, 0x0000e02c},
63 {0x0e, 0x00039ce7}, {0x0f, 0x00000451},
64 {0x19, 0x00000000}, {0x1a, 0x00030355},
65 {0x1b, 0x00060a00}, {0x1c, 0x000fc378},
66 {0x1d, 0x000a1250}, {0x1e, 0x0000024f},
67 {0x1f, 0x00000000}, {0x20, 0x0000b614},
68 {0x21, 0x0006c000}, {0x22, 0x00000000},
69 {0x23, 0x00001558}, {0x24, 0x00000060},
70 {0x25, 0x00000483}, {0x26, 0x0004f000},
71 {0x27, 0x000ec7d9}, {0x28, 0x00057730},
72 {0x29, 0x00004783}, {0x2a, 0x00000001},
73 {0x2b, 0x00021334}, {0x2a, 0x00000000},
74 {0x2b, 0x00000054}, {0x2a, 0x00000001},
75 {0x2b, 0x00000808}, {0x2b, 0x00053333},
76 {0x2c, 0x0000000c}, {0x2a, 0x00000002},
77 {0x2b, 0x00000808}, {0x2b, 0x0005b333},
78 {0x2c, 0x0000000d}, {0x2a, 0x00000003},
79 {0x2b, 0x00000808}, {0x2b, 0x00063333},
80 {0x2c, 0x0000000d}, {0x2a, 0x00000004},
81 {0x2b, 0x00000808}, {0x2b, 0x0006b333},
82 {0x2c, 0x0000000d}, {0x2a, 0x00000005},
83 {0x2b, 0x00000808}, {0x2b, 0x00073333},
84 {0x2c, 0x0000000d}, {0x2a, 0x00000006},
85 {0x2b, 0x00000709}, {0x2b, 0x0005b333},
86 {0x2c, 0x0000000d}, {0x2a, 0x00000007},
87 {0x2b, 0x00000709}, {0x2b, 0x00063333},
88 {0x2c, 0x0000000d}, {0x2a, 0x00000008},
89 {0x2b, 0x0000060a}, {0x2b, 0x0004b333},
90 {0x2c, 0x0000000d}, {0x2a, 0x00000009},
91 {0x2b, 0x0000060a}, {0x2b, 0x00053333},
92 {0x2c, 0x0000000d}, {0x2a, 0x0000000a},
93 {0x2b, 0x0000060a}, {0x2b, 0x0005b333},
94 {0x2c, 0x0000000d}, {0x2a, 0x0000000b},
95 {0x2b, 0x0000060a}, {0x2b, 0x00063333},
96 {0x2c, 0x0000000d}, {0x2a, 0x0000000c},
97 {0x2b, 0x0000060a}, {0x2b, 0x0006b333},
98 {0x2c, 0x0000000d}, {0x2a, 0x0000000d},
99 {0x2b, 0x0000060a}, {0x2b, 0x00073333},
100 {0x2c, 0x0000000d}, {0x2a, 0x0000000e},
101 {0x2b, 0x0000050b}, {0x2b, 0x00066666},
102 {0x2c, 0x0000001a}, {0x2a, 0x000e0000},
103 {0x10, 0x0004000f}, {0x11, 0x000e31fc},
104 {0x10, 0x0006000f}, {0x11, 0x000ff9f8},
105 {0x10, 0x0002000f}, {0x11, 0x000203f9},
106 {0x10, 0x0003000f}, {0x11, 0x000ff500},
107 {0x10, 0x00000000}, {0x11, 0x00000000},
108 {0x10, 0x0008000f}, {0x11, 0x0003f100},
109 {0x10, 0x0009000f}, {0x11, 0x00023100},
110 {0x12, 0x00032000}, {0x12, 0x00071000},
111 {0x12, 0x000b0000}, {0x12, 0x000fc000},
112 {0x13, 0x000287b3}, {0x13, 0x000244b7},
113 {0x13, 0x000204ab}, {0x13, 0x0001c49f},
114 {0x13, 0x00018493}, {0x13, 0x0001429b},
115 {0x13, 0x00010299}, {0x13, 0x0000c29c},
116 {0x13, 0x000081a0}, {0x13, 0x000040ac},
117 {0x13, 0x00000020}, {0x14, 0x0001944c},
118 {0x14, 0x00059444}, {0x14, 0x0009944c},
119 {0x14, 0x000d9444}, {0x15, 0x0000f474},
120 {0x15, 0x0004f477}, {0x15, 0x0008f455},
121 {0x15, 0x000cf455}, {0x16, 0x00000339},
122 {0x16, 0x00040339}, {0x16, 0x00080339},
123 {0x16, 0x000c0366}, {0x00, 0x00010159},
124 {0x18, 0x0000f401}, {0xfe, 0x00000000},
125 {0xfe, 0x00000000}, {0x1f, 0x00000003},
126 {0xfe, 0x00000000}, {0xfe, 0x00000000},
127 {0x1e, 0x00000247}, {0x1f, 0x00000000},
128 {0x00, 0x00030159},
129 {0xff, 0xffffffff}
130};
131
132static int rtl8723au_identify_chip(struct rtl8xxxu_priv *priv)
133{
134 struct device *dev = &priv->udev->dev;
135 u32 val32, sys_cfg, vendor;
136 int ret = 0;
137
138 sys_cfg = rtl8xxxu_read32(priv, REG_SYS_CFG);
139 priv->chip_cut = u32_get_bits(v: sys_cfg, SYS_CFG_CHIP_VERSION_MASK);
140 if (sys_cfg & SYS_CFG_TRP_VAUX_EN) {
141 dev_info(dev, "Unsupported test chip\n");
142 ret = -ENOTSUPP;
143 goto out;
144 }
145
146 strscpy(priv->chip_name, "8723AU", sizeof(priv->chip_name));
147 priv->usb_interrupts = 1;
148 priv->rtl_chip = RTL8723A;
149
150 priv->rf_paths = 1;
151 priv->rx_paths = 1;
152 priv->tx_paths = 1;
153
154 val32 = rtl8xxxu_read32(priv, REG_MULTI_FUNC_CTRL);
155 if (val32 & MULTI_WIFI_FUNC_EN)
156 priv->has_wifi = 1;
157 if (val32 & MULTI_BT_FUNC_EN)
158 priv->has_bluetooth = 1;
159 if (val32 & MULTI_GPS_FUNC_EN)
160 priv->has_gps = 1;
161 priv->is_multi_func = 1;
162
163 vendor = sys_cfg & SYS_CFG_VENDOR_ID;
164 rtl8xxxu_identify_vendor_1bit(priv, vendor);
165
166 val32 = rtl8xxxu_read32(priv, REG_GPIO_OUTSTS);
167 priv->rom_rev = u32_get_bits(v: val32, GPIO_RF_RL_ID);
168
169 rtl8xxxu_config_endpoints_sie(priv);
170
171 /*
172 * Fallback for devices that do not provide REG_NORMAL_SIE_EP_TX
173 */
174 if (!priv->ep_tx_count)
175 ret = rtl8xxxu_config_endpoints_no_sie(priv);
176
177out:
178 return ret;
179}
180
181static int rtl8723au_parse_efuse(struct rtl8xxxu_priv *priv)
182{
183 struct rtl8723au_efuse *efuse = &priv->efuse_wifi.efuse8723;
184
185 if (efuse->rtl_id != cpu_to_le16(0x8129))
186 return -EINVAL;
187
188 ether_addr_copy(dst: priv->mac_addr, src: efuse->mac_addr);
189
190 memcpy(priv->cck_tx_power_index_A,
191 efuse->cck_tx_power_index_A,
192 sizeof(efuse->cck_tx_power_index_A));
193 memcpy(priv->cck_tx_power_index_B,
194 efuse->cck_tx_power_index_B,
195 sizeof(efuse->cck_tx_power_index_B));
196
197 memcpy(priv->ht40_1s_tx_power_index_A,
198 efuse->ht40_1s_tx_power_index_A,
199 sizeof(efuse->ht40_1s_tx_power_index_A));
200 memcpy(priv->ht40_1s_tx_power_index_B,
201 efuse->ht40_1s_tx_power_index_B,
202 sizeof(efuse->ht40_1s_tx_power_index_B));
203
204 memcpy(priv->ht20_tx_power_index_diff,
205 efuse->ht20_tx_power_index_diff,
206 sizeof(efuse->ht20_tx_power_index_diff));
207 memcpy(priv->ofdm_tx_power_index_diff,
208 efuse->ofdm_tx_power_index_diff,
209 sizeof(efuse->ofdm_tx_power_index_diff));
210
211 memcpy(priv->ht40_max_power_offset,
212 efuse->ht40_max_power_offset,
213 sizeof(efuse->ht40_max_power_offset));
214 memcpy(priv->ht20_max_power_offset,
215 efuse->ht20_max_power_offset,
216 sizeof(efuse->ht20_max_power_offset));
217
218 if (priv->efuse_wifi.efuse8723.version >= 0x01)
219 priv->default_crystal_cap = priv->efuse_wifi.efuse8723.xtal_k & 0x3f;
220 else
221 priv->fops->set_crystal_cap = NULL;
222
223 priv->power_base = &rtl8723a_power_base;
224
225 return 0;
226}
227
228static int rtl8723au_load_firmware(struct rtl8xxxu_priv *priv)
229{
230 const char *fw_name;
231 int ret;
232
233 switch (priv->chip_cut) {
234 case 0:
235 fw_name = "rtlwifi/rtl8723aufw_A.bin";
236 break;
237 case 1:
238 if (priv->enable_bluetooth)
239 fw_name = "rtlwifi/rtl8723aufw_B.bin";
240 else
241 fw_name = "rtlwifi/rtl8723aufw_B_NoBT.bin";
242
243 break;
244 default:
245 return -EINVAL;
246 }
247
248 ret = rtl8xxxu_load_firmware(priv, fw_name);
249 return ret;
250}
251
252static int rtl8723au_init_phy_rf(struct rtl8xxxu_priv *priv)
253{
254 int ret;
255
256 ret = rtl8xxxu_init_phy_rf(priv, table: rtl8723au_radioa_1t_init_table, path: RF_A);
257
258 /* Reduce 80M spur */
259 rtl8xxxu_write32(priv, REG_AFE_XTAL_CTRL, val: 0x0381808d);
260 rtl8xxxu_write32(priv, REG_AFE_PLL_CTRL, val: 0xf0ffff83);
261 rtl8xxxu_write32(priv, REG_AFE_PLL_CTRL, val: 0xf0ffff82);
262 rtl8xxxu_write32(priv, REG_AFE_PLL_CTRL, val: 0xf0ffff83);
263
264 return ret;
265}
266
267static int rtl8723a_emu_to_active(struct rtl8xxxu_priv *priv)
268{
269 u8 val8;
270 u32 val32;
271 int count, ret = 0;
272
273 /* 0x20[0] = 1 enable LDOA12 MACRO block for all interface*/
274 val8 = rtl8xxxu_read8(priv, REG_LDOA15_CTRL);
275 val8 |= LDOA15_ENABLE;
276 rtl8xxxu_write8(priv, REG_LDOA15_CTRL, val: val8);
277
278 /* 0x67[0] = 0 to disable BT_GPS_SEL pins*/
279 val8 = rtl8xxxu_read8(priv, addr: 0x0067);
280 val8 &= ~BIT(4);
281 rtl8xxxu_write8(priv, addr: 0x0067, val: val8);
282
283 mdelay(1);
284
285 /* 0x00[5] = 0 release analog Ips to digital, 1:isolation */
286 val8 = rtl8xxxu_read8(priv, REG_SYS_ISO_CTRL);
287 val8 &= ~SYS_ISO_ANALOG_IPS;
288 rtl8xxxu_write8(priv, REG_SYS_ISO_CTRL, val: val8);
289
290 /* disable SW LPS 0x04[10]= 0 */
291 val8 = rtl8xxxu_read8(priv, REG_APS_FSMCO + 1);
292 val8 &= ~BIT(2);
293 rtl8xxxu_write8(priv, REG_APS_FSMCO + 1, val: val8);
294
295 /* wait till 0x04[17] = 1 power ready*/
296 for (count = RTL8XXXU_MAX_REG_POLL; count; count--) {
297 val32 = rtl8xxxu_read32(priv, REG_APS_FSMCO);
298 if (val32 & BIT(17))
299 break;
300
301 udelay(10);
302 }
303
304 if (!count) {
305 ret = -EBUSY;
306 goto exit;
307 }
308
309 /* We should be able to optimize the following three entries into one */
310
311 /* release WLON reset 0x04[16]= 1*/
312 val8 = rtl8xxxu_read8(priv, REG_APS_FSMCO + 2);
313 val8 |= BIT(0);
314 rtl8xxxu_write8(priv, REG_APS_FSMCO + 2, val: val8);
315
316 /* disable HWPDN 0x04[15]= 0*/
317 val8 = rtl8xxxu_read8(priv, REG_APS_FSMCO + 1);
318 val8 &= ~BIT(7);
319 rtl8xxxu_write8(priv, REG_APS_FSMCO + 1, val: val8);
320
321 /* disable WL suspend*/
322 val8 = rtl8xxxu_read8(priv, REG_APS_FSMCO + 1);
323 val8 &= ~(BIT(3) | BIT(4));
324 rtl8xxxu_write8(priv, REG_APS_FSMCO + 1, val: val8);
325
326 /* set, then poll until 0 */
327 val32 = rtl8xxxu_read32(priv, REG_APS_FSMCO);
328 val32 |= APS_FSMCO_MAC_ENABLE;
329 rtl8xxxu_write32(priv, REG_APS_FSMCO, val: val32);
330
331 for (count = RTL8XXXU_MAX_REG_POLL; count; count--) {
332 val32 = rtl8xxxu_read32(priv, REG_APS_FSMCO);
333 if ((val32 & APS_FSMCO_MAC_ENABLE) == 0) {
334 ret = 0;
335 break;
336 }
337 udelay(10);
338 }
339
340 if (!count) {
341 ret = -EBUSY;
342 goto exit;
343 }
344
345 /* 0x4C[23] = 0x4E[7] = 1, switch DPDT_SEL_P output from WL BB */
346 /*
347 * Note: Vendor driver actually clears this bit, despite the
348 * documentation claims it's being set!
349 */
350 val8 = rtl8xxxu_read8(priv, REG_LEDCFG2);
351 val8 |= LEDCFG2_DPDT_SELECT;
352 val8 &= ~LEDCFG2_DPDT_SELECT;
353 rtl8xxxu_write8(priv, REG_LEDCFG2, val: val8);
354
355exit:
356 return ret;
357}
358
359static int rtl8723au_power_on(struct rtl8xxxu_priv *priv)
360{
361 u8 val8;
362 u16 val16;
363 u32 val32;
364 int ret;
365
366 /*
367 * RSV_CTRL 0x001C[7:0] = 0x00, unlock ISO/CLK/Power control register
368 */
369 rtl8xxxu_write8(priv, REG_RSV_CTRL, val: 0x0);
370
371 rtl8xxxu_disabled_to_emu(priv);
372
373 ret = rtl8723a_emu_to_active(priv);
374 if (ret)
375 goto exit;
376
377 /*
378 * 0x0004[19] = 1, reset 8051
379 */
380 val8 = rtl8xxxu_read8(priv, REG_APS_FSMCO + 2);
381 val8 |= BIT(3);
382 rtl8xxxu_write8(priv, REG_APS_FSMCO + 2, val: val8);
383
384 /*
385 * Enable MAC DMA/WMAC/SCHEDULE/SEC block
386 * Set CR bit10 to enable 32k calibration.
387 */
388 val16 = rtl8xxxu_read16(priv, REG_CR);
389 val16 |= (CR_HCI_TXDMA_ENABLE | CR_HCI_RXDMA_ENABLE |
390 CR_TXDMA_ENABLE | CR_RXDMA_ENABLE |
391 CR_PROTOCOL_ENABLE | CR_SCHEDULE_ENABLE |
392 CR_MAC_TX_ENABLE | CR_MAC_RX_ENABLE |
393 CR_SECURITY_ENABLE | CR_CALTIMER_ENABLE);
394 rtl8xxxu_write16(priv, REG_CR, val: val16);
395
396 /* For EFuse PG */
397 val32 = rtl8xxxu_read32(priv, REG_EFUSE_CTRL);
398 val32 &= ~(BIT(28) | BIT(29) | BIT(30));
399 val32 |= (0x06 << 28);
400 rtl8xxxu_write32(priv, REG_EFUSE_CTRL, val: val32);
401exit:
402 return ret;
403}
404
405#define XTAL1 GENMASK(23, 18)
406#define XTAL0 GENMASK(17, 12)
407
408void rtl8723a_set_crystal_cap(struct rtl8xxxu_priv *priv, u8 crystal_cap)
409{
410 struct rtl8xxxu_cfo_tracking *cfo = &priv->cfo_tracking;
411 u32 val32;
412
413 if (crystal_cap == cfo->crystal_cap)
414 return;
415
416 val32 = rtl8xxxu_read32(priv, REG_MAC_PHY_CTRL);
417
418 dev_dbg(&priv->udev->dev,
419 "%s: Adjusting crystal cap from 0x%x (actually 0x%lx 0x%lx) to 0x%x\n",
420 __func__,
421 cfo->crystal_cap,
422 FIELD_GET(XTAL1, val32),
423 FIELD_GET(XTAL0, val32),
424 crystal_cap);
425
426 val32 &= ~(XTAL1 | XTAL0);
427 val32 |= FIELD_PREP(XTAL1, crystal_cap) |
428 FIELD_PREP(XTAL0, crystal_cap);
429 rtl8xxxu_write32(priv, REG_MAC_PHY_CTRL, val: val32);
430
431 cfo->crystal_cap = crystal_cap;
432}
433
434s8 rtl8723a_cck_rssi(struct rtl8xxxu_priv *priv, struct rtl8723au_phy_stats *phy_stats)
435{
436 u8 cck_agc_rpt = phy_stats->cck_agc_rpt_ofdm_cfosho_a;
437 s8 rx_pwr_all = 0x00;
438
439 switch (cck_agc_rpt & 0xc0) {
440 case 0xc0:
441 rx_pwr_all = -46 - (cck_agc_rpt & 0x3e);
442 break;
443 case 0x80:
444 rx_pwr_all = -26 - (cck_agc_rpt & 0x3e);
445 break;
446 case 0x40:
447 rx_pwr_all = -12 - (cck_agc_rpt & 0x3e);
448 break;
449 case 0x00:
450 rx_pwr_all = 16 - (cck_agc_rpt & 0x3e);
451 break;
452 }
453
454 return rx_pwr_all;
455}
456
457static int rtl8723au_led_brightness_set(struct led_classdev *led_cdev,
458 enum led_brightness brightness)
459{
460 struct rtl8xxxu_priv *priv = container_of(led_cdev,
461 struct rtl8xxxu_priv,
462 led_cdev);
463 u8 ledcfg = rtl8xxxu_read8(priv, REG_LEDCFG2);
464
465 if (brightness == LED_OFF) {
466 ledcfg &= ~LEDCFG2_HW_LED_CONTROL;
467 ledcfg |= LEDCFG2_SW_LED_CONTROL | LEDCFG2_SW_LED_DISABLE;
468 } else if (brightness == LED_ON) {
469 ledcfg &= ~(LEDCFG2_HW_LED_CONTROL | LEDCFG2_SW_LED_DISABLE);
470 ledcfg |= LEDCFG2_SW_LED_CONTROL;
471 } else if (brightness == RTL8XXXU_HW_LED_CONTROL) {
472 ledcfg &= ~LEDCFG2_SW_LED_DISABLE;
473 ledcfg |= LEDCFG2_HW_LED_CONTROL | LEDCFG2_HW_LED_ENABLE;
474 }
475
476 rtl8xxxu_write8(priv, REG_LEDCFG2, val: ledcfg);
477
478 return 0;
479}
480
481struct rtl8xxxu_fileops rtl8723au_fops = {
482 .identify_chip = rtl8723au_identify_chip,
483 .parse_efuse = rtl8723au_parse_efuse,
484 .load_firmware = rtl8723au_load_firmware,
485 .power_on = rtl8723au_power_on,
486 .power_off = rtl8xxxu_power_off,
487 .read_efuse = rtl8xxxu_read_efuse,
488 .reset_8051 = rtl8xxxu_reset_8051,
489 .llt_init = rtl8xxxu_init_llt_table,
490 .init_phy_bb = rtl8xxxu_gen1_init_phy_bb,
491 .init_phy_rf = rtl8723au_init_phy_rf,
492 .phy_lc_calibrate = rtl8723a_phy_lc_calibrate,
493 .phy_iq_calibrate = rtl8xxxu_gen1_phy_iq_calibrate,
494 .config_channel = rtl8xxxu_gen1_config_channel,
495 .parse_rx_desc = rtl8xxxu_parse_rxdesc16,
496 .parse_phystats = rtl8723au_rx_parse_phystats,
497 .init_aggregation = rtl8xxxu_gen1_init_aggregation,
498 .enable_rf = rtl8xxxu_gen1_enable_rf,
499 .disable_rf = rtl8xxxu_gen1_disable_rf,
500 .usb_quirks = rtl8xxxu_gen1_usb_quirks,
501 .set_tx_power = rtl8xxxu_gen1_set_tx_power,
502 .update_rate_mask = rtl8xxxu_update_rate_mask,
503 .report_connect = rtl8xxxu_gen1_report_connect,
504 .report_rssi = rtl8xxxu_gen1_report_rssi,
505 .fill_txdesc = rtl8xxxu_fill_txdesc_v1,
506 .set_crystal_cap = rtl8723a_set_crystal_cap,
507 .cck_rssi = rtl8723a_cck_rssi,
508 .led_classdev_brightness_set = rtl8723au_led_brightness_set,
509 .writeN_block_size = 1024,
510 .rx_agg_buf_size = 16000,
511 .tx_desc_size = sizeof(struct rtl8xxxu_txdesc32),
512 .rx_desc_size = sizeof(struct rtl8xxxu_rxdesc16),
513 .max_sec_cam_num = 32,
514 .adda_1t_init = 0x0b1b25a0,
515 .adda_1t_path_on = 0x0bdb25a0,
516 .adda_2t_path_on_a = 0x04db25a4,
517 .adda_2t_path_on_b = 0x0b1b25a4,
518 .trxff_boundary = 0x27ff,
519 .pbp_rx = PBP_PAGE_SIZE_128,
520 .pbp_tx = PBP_PAGE_SIZE_128,
521 .mactable = rtl8xxxu_gen1_mac_init_table,
522 .total_page_num = TX_TOTAL_PAGE_NUM,
523 .page_num_hi = TX_PAGE_NUM_HI_PQ,
524 .page_num_lo = TX_PAGE_NUM_LO_PQ,
525 .page_num_norm = TX_PAGE_NUM_NORM_PQ,
526};
527

source code of linux/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8723a.c