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diff --git a/share/man/man4/rtwn.4 b/share/man/man4/rtwn.4
--- a/share/man/man4/rtwn.4
+++ b/share/man/man4/rtwn.4
@@ -19,7 +19,7 @@
.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
.\"
-.Dd November 10, 2024
+.Dd September 1, 2026
.Dt RTWN 4
.Os
.Sh NAME
@@ -93,6 +93,8 @@
.It
Realtek 802.11n wireless 8192e (RTL8192E)
.It
+Realtek 802.11n wireless 8723b (RTL8723B)
+.It
Realtek 802.11ac wireless 8812a (RTL8812A)
.It
Realtek 802.11ac wireless 8821a (RTL8821A)
@@ -122,6 +124,7 @@
.It Pa /boot/kernel/rtwn-rtl8192cfwT.ko
.It Pa /boot/kernel/rtwn-rtl8192cfwU.ko
.It Pa /boot/kernel/rtwn-rtl8192eufw.ko
+.It Pa /boot/kernel/rtwn-rtl8723bufw.ko
.It Pa /boot/kernel/rtwn-rtl8812aufw.ko
.It Pa /boot/kernel/rtwn-rtl8821aufw.ko
.El
@@ -266,3 +269,6 @@
The
.Nm
driver currently does not implement firmware-based rate control.
+The RTL8723BU seems to depend on some firmware commands for antenna
+setup.
+Hence, it does not work without firmware.
diff --git a/share/man/man4/rtwn_usb.4 b/share/man/man4/rtwn_usb.4
--- a/share/man/man4/rtwn_usb.4
+++ b/share/man/man4/rtwn_usb.4
@@ -29,7 +29,7 @@
.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
.\" THE POSSIBILITY OF SUCH DAMAGES.
.\"
-.Dd November 10, 2024
+.Dd September 1, 2026
.Dt RTWN_USB 4
.Os
.Sh NAME
@@ -59,7 +59,7 @@
The
.Nm
driver supports USB wireless network adapters based on certain
-Realtek RTL 8188/8192/8812 and 8821 chipsets, including:
+Realtek RTL 8188/8192/8723/8812 and 8821 chipsets, including:
.Pp
.Bl -column -compact "Belkin F7D1102 Surf Wireless Micro" "RTL8188CUS" "USB 2.0"
.It Em Card Ta Em Chip Ta Em Bus
@@ -97,6 +97,7 @@
.It "Netgear WNA1000M" Ta RTL8188CUS Ta USB 2.0
.It "Mercusys MW150US" Ta RTL8188EU Ta USB 2.0
.It "Planex GW-900D" Ta RTL8812AU Ta USB 3.0
+.It "Realtek RTL8723BU" Ta RTL8723BU Ta USB 2.0
.It "Realtek RTL8192CU" Ta RTL8192CU Ta USB 2.0
.It "Realtek RTL8188CUS" Ta RTL8188CUS Ta USB 2.0
.It "Sitecom WLA-7100" Ta RTL8812AU Ta USB 3.0
diff --git a/sys/conf/files b/sys/conf/files
--- a/sys/conf/files
+++ b/sys/conf/files
@@ -2990,6 +2990,17 @@
dev/rtwn/rtl8192e/r92e_rx.c optional rtwn
dev/rtwn/rtl8192e/usb/r92eu_attach.c optional rtwn_usb
dev/rtwn/rtl8192e/usb/r92eu_init.c optional rtwn_usb
+# RTL8723B
+dev/rtwn/rtl8723b/r23b_calib.c optional rtwn
+dev/rtwn/rtl8723b/r23b_fw.c optional rtwn
+dev/rtwn/rtl8723b/r23b_init.c optional rtwn
+dev/rtwn/rtl8723b/r23b_led.c optional rtwn
+dev/rtwn/rtl8723b/r23b_rf.c optional rtwn
+dev/rtwn/rtl8723b/r23b_rom.c optional rtwn
+dev/rtwn/rtl8723b/r23b_rx.c optional rtwn
+dev/rtwn/rtl8723b/usb/r23bu_attach.c optional rtwn_usb
+dev/rtwn/rtl8723b/usb/r23bu_init.c optional rtwn_usb
+dev/rtwn/rtl8723b/usb/r23bu_rom.c optional rtwn_usb
# RTL8812A
dev/rtwn/rtl8812a/r12a_beacon.c optional rtwn
dev/rtwn/rtl8812a/r12a_calib.c optional rtwn
diff --git a/sys/contrib/dev/rtwn/rtwn-rtl8723bufw.fw.uu b/sys/contrib/dev/rtwn/rtwn-rtl8723bufw.fw.uu
new file mode 100644
--- /dev/null
+++ b/sys/contrib/dev/rtwn/rtwn-rtl8723bufw.fw.uu
@@ -0,0 +1,717 @@
+begin 644 rtwn-rtl8723bufw.fw.uu
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+end
diff --git a/sys/dev/rtwn/rtl8723b/r23b.h b/sys/dev/rtwn/rtl8723b/r23b.h
new file mode 100644
--- /dev/null
+++ b/sys/dev/rtwn/rtl8723b/r23b.h
@@ -0,0 +1,59 @@
+/*
+ * Copyright (c) 2026 Ahmad Khalifa <vexeduxr@FreeBSD.org>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#ifndef RTL8723B_H
+#define RTL8723B_H
+
+/*
+ * Global definitions.
+ */
+#define R23B_PUBQ_NPAGES 231
+#define R23B_HPQ_NPAGES 12
+#define R23B_LPQ_NPAGES 2
+#define R23B_NPQ_NPAGES 2
+
+#define R23B_TX_PAGE_COUNT 247
+
+#define R23B_RX_DMA_BUFFER_SIZE 0x3f80
+
+#define R23B_CALIB_THRESHOLD 7
+
+/*
+ * Function declarations.
+ */
+
+/* r23b_calib.c */
+void r23b_iq_calib(struct rtwn_softc *);
+void r23b_lc_calib(struct rtwn_softc *);
+void r23b_temp_measure(struct rtwn_softc *);
+
+/* r23b_fw.c */
+#ifndef RTWN_WITHOUT_UCODE
+void r23b_fw_download_enable(struct rtwn_softc *, int);
+void r23b_fw_reset(struct rtwn_softc *, int);
+#endif
+
+/* r23b_init.c */
+void r23b_init_antsel(struct rtwn_softc *);
+void r23b_init_bb_common(struct rtwn_softc *);
+void r23b_init_rf(struct rtwn_softc *);
+void r23b_post_init(struct rtwn_softc *);
+int r23b_set_page_size(struct rtwn_softc *);
+
+/* r23b_led.c */
+void r23b_set_led(struct rtwn_softc *, int, int);
+
+/* r23b_rf.c */
+void r23b_rf_write(struct rtwn_softc *, int, uint8_t, uint32_t);
+
+/* r23b_rom.c */
+int r23b_efuse_preread(struct rtwn_softc *);
+void r23b_parse_rom(struct rtwn_softc *, uint8_t *);
+
+/* r23b_rx.c */
+int8_t r23b_get_rssi_cck(struct rtwn_softc *, void *);
+
+#endif /* RTL8723B_H */
diff --git a/sys/dev/rtwn/rtl8723b/r23b_calib.c b/sys/dev/rtwn/rtl8723b/r23b_calib.c
new file mode 100644
--- /dev/null
+++ b/sys/dev/rtwn/rtl8723b/r23b_calib.c
@@ -0,0 +1,620 @@
+/*
+ * Copyright (c) 2026 Ahmad Khalifa <vexeduxr@FreeBSD.org>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#include <sys/param.h>
+#include <sys/lock.h>
+#include <sys/mutex.h>
+#include <sys/mbuf.h>
+#include <sys/kernel.h>
+#include <sys/socket.h>
+#include <sys/systm.h>
+#include <sys/malloc.h>
+#include <sys/queue.h>
+#include <sys/taskqueue.h>
+#include <sys/bus.h>
+#include <sys/endian.h>
+#include <sys/linker.h>
+
+#include <net/if.h>
+#include <net/ethernet.h>
+#include <net/if_media.h>
+
+#include <net80211/ieee80211_var.h>
+#include <net80211/ieee80211_radiotap.h>
+
+#include <dev/rtwn/if_rtwnreg.h>
+#include <dev/rtwn/if_rtwnvar.h>
+
+#include <dev/rtwn/if_rtwn_debug.h>
+
+#include <dev/rtwn/rtl8188e/r88e.h>
+#include <dev/rtwn/rtl8188e/r88e_reg.h>
+
+#include <dev/rtwn/rtl8192c/r92c_reg.h>
+
+#include <dev/rtwn/rtl8192e/r92e_var.h>
+
+#include <dev/rtwn/rtl8723b/r23b.h>
+#include <dev/rtwn/rtl8723b/r23b_var.h>
+#include <dev/rtwn/rtl8723b/r23b_reg.h>
+#include <dev/rtwn/rtl8723b/r23b_fw_cmd.h>
+
+struct r23b_iqk_reg_vals {
+ uint32_t adaa[16];
+ uint32_t iqk_bb[9];
+ uint8_t txpause;
+ uint8_t bcn_ctrl[2];
+ uint8_t gpio_muxcfg;
+};
+
+struct r23b_iqk_result {
+ int32_t iqk_before;
+ int32_t iqk_after;
+};
+
+enum r23b_iqk_stage {
+ R23B_IQK_TX,
+ R23B_IQK_TX_RX,
+ R23B_IQK_RX
+};
+
+static const uint16_t r23b_iq_calib_reg_adaa[16] = {
+ 0x85c, 0xe6c, 0xe70, 0xe74,
+ 0xe78, 0xe7c, 0xe80, 0xe84,
+ 0xe88, 0xe8c, 0xed0, 0xed4,
+ 0xed8, 0xedc, 0xee0, 0xeec
+};
+
+static const uint16_t r23b_iq_calib_reg_iqk_bb[9] = {
+ 0xc04, 0xc08, 0x874, 0xb68,
+ 0xb6c, 0x870, 0x860, 0x864,
+ 0xa04
+};
+
+#define R23B_IQK_MAX_TOLERANCE 5
+#define R23B_IQK_SIGN(r) (((r) & 0x200) ? (0xfffffc00 | (r)) : (r))
+
+/* XXX
+ * Same as r92c_lc_calib except for LDO on and LDO off
+ */
+void
+r23b_lc_calib(struct rtwn_softc *sc)
+{
+ uint32_t rf_ac[2];
+ uint8_t txmode;
+ int i;
+
+ txmode = rtwn_read_1(sc, R92C_OFDM1_LSTF + 3);
+ if ((txmode & 0x70) != 0) {
+ /* Disable all continuous Tx. */
+ rtwn_write_1(sc, R92C_OFDM1_LSTF + 3, txmode & ~0x70);
+
+ /* Set RF mode to standby mode. */
+ for (i = 0; i < sc->nrxchains; i++) {
+ rf_ac[i] = rtwn_rf_read(sc, i, R92C_RF_AC);
+ rtwn_rf_write(sc, i, R92C_RF_AC,
+ RW(rf_ac[i], R92C_RF_AC_MODE,
+ R92C_RF_AC_MODE_STANDBY));
+ }
+ } else {
+ /* Block all Tx queues. */
+ rtwn_write_1(sc, R92C_TXPAUSE, R92C_TX_QUEUE_ALL);
+ }
+
+ /* LDO on */
+ rtwn_rf_write(sc, 0, R23B_RF_S0S1, 0xdfbe0);
+
+ /* Start calibration. */
+ rtwn_rf_setbits(sc, 0, R92C_RF_CHNLBW, 0, R92C_RF_CHNLBW_LCSTART);
+
+ /* Give calibration the time to complete. */
+ rtwn_delay(sc, 100000); /* 100ms */
+
+ /* LDO off */
+ rtwn_rf_write(sc, 0, R23B_RF_S0S1, 0xdffe0);
+
+ /* Restore configuration. */
+ if ((txmode & 0x70) != 0) {
+ /* Restore Tx mode. */
+ rtwn_write_1(sc, R92C_OFDM1_LSTF + 3, txmode);
+ /* Restore RF mode. */
+ for (i = 0; i < sc->nrxchains; i++)
+ rtwn_rf_write(sc, i, R92C_RF_AC, rf_ac[i]);
+ } else {
+ /* Unblock all Tx queues. */
+ rtwn_write_1(sc, R92C_TXPAUSE, 0x00);
+ }
+}
+
+static void
+r23b_iq_calib_chain(struct rtwn_softc *sc, enum r23b_iqk_stage stage)
+{
+ struct r23b_softc *rs = sc->sc_priv;
+ uint32_t rf_path;
+
+ RTWN_DPRINTF(sc, RTWN_DEBUG_CALIB, "%s: starting stage: %s\n",
+ __func__, stage == R23B_IQK_TX ? "R23B_IQK_TX" :
+ stage == R23B_IQK_TX_RX ? "R23B_IQK_TX_RX" : "R23B_IQK_RX");
+
+ /* Save RF path. */
+ rf_path = rtwn_read_4(sc, R23B_ANT_SEL);
+
+ /* Leave IQK mode. */
+ rtwn_setbits_4(sc, R92C_FPGA0_IQK, ~0xff, 0);
+
+ rtwn_rf_setbits(sc, 0, R88E_RF_WE_LUT, 0, 0x80000);
+ switch (stage) {
+ case R23B_IQK_TX:
+ rtwn_rf_write(sc, 0, R92C_RF_RCK_OS, 0x20000);
+ rtwn_rf_write(sc, 0, R92C_RF_TXPA_G(0), 0x0003f);
+ rtwn_rf_write(sc, 0, R92C_RF_TXPA_G(1), 0xc7f87);
+
+ rtwn_write_4(sc, R92C_TX_IQK, 0x01007c00);
+ break;
+ case R23B_IQK_TX_RX:
+ rtwn_rf_write(sc, 0, R92C_RF_RCK_OS, 0x30000);
+ rtwn_rf_write(sc, 0, R92C_RF_TXPA_G(0), 0x0001f);
+ rtwn_rf_write(sc, 0, R92C_RF_TXPA_G(1), 0xf7fb7);
+
+ rtwn_write_4(sc, R92C_TX_IQK, 0x01007c00);
+ break;
+ case R23B_IQK_RX:
+ rtwn_rf_write(sc, 0, R92C_RF_RCK_OS, 0x30000);
+ rtwn_rf_write(sc, 0, R92C_RF_TXPA_G(0), 0x0001f);
+ rtwn_rf_write(sc, 0, R92C_RF_TXPA_G(1), 0xf7d77);
+
+ rtwn_rf_write(sc, 0, 0xdf, 0xf80);
+ rtwn_rf_write(sc, 0, 0x55, 0x4021f);
+ break;
+ default:
+ KASSERT(0, ("%s: Invalid stage %d", __func__, stage));
+ }
+
+ rtwn_write_4(sc, R92C_RX_IQK, 0x01004800);
+
+ switch (stage) {
+ case R23B_IQK_TX:
+ case R23B_IQK_TX_RX:
+ rtwn_write_4(sc, R92C_TX_IQK_TONE(0), 0x18008c1c);
+ rtwn_write_4(sc, R92C_RX_IQK_TONE(0), 0x38008c1c);
+ break;
+ case R23B_IQK_RX:
+ rtwn_write_4(sc, R92C_TX_IQK_TONE(0), 0x38008c1c);
+ rtwn_write_4(sc, R92C_RX_IQK_TONE(0), 0x18008c1c);
+ break;
+ }
+ rtwn_write_4(sc, R92C_TX_IQK_TONE(1), 0x38008c1c);
+ rtwn_write_4(sc, R92C_RX_IQK_TONE(1), 0x38008c1c);
+
+ switch (stage) {
+ case R23B_IQK_TX:
+ rtwn_write_4(sc, R92C_TX_IQK_PI(0), 0x821403ea);
+ rtwn_write_4(sc, R92C_RX_IQK_PI(0), 0x28110000);
+ break;
+ case R23B_IQK_TX_RX:
+ rtwn_write_4(sc, R92C_TX_IQK_PI(0), 0x82160ff0);
+ rtwn_write_4(sc, R92C_RX_IQK_PI(0), 0x28110000);
+ break;
+ case R23B_IQK_RX:
+ rtwn_write_4(sc, R92C_TX_IQK_PI(0), 0x82110000);
+ rtwn_write_4(sc, R92C_RX_IQK_PI(0), 0x2816001f);
+ break;
+ }
+
+ rtwn_write_4(sc, R92C_TX_IQK_PI(1), 0x82110000);
+ rtwn_write_4(sc, R92C_RX_IQK_PI(1), 0x28110000);
+
+ switch (stage) {
+ case R23B_IQK_TX:
+ rtwn_write_4(sc, R92C_IQK_AGC_RSP, 0x00462911);
+ break;
+ case R23B_IQK_TX_RX:
+ rtwn_write_4(sc, R92C_IQK_AGC_RSP, 0x0046a911);
+ break;
+ case R23B_IQK_RX:
+ rtwn_write_4(sc, R92C_IQK_AGC_RSP, 0x0046a8d1);
+ break;
+ }
+
+ /* Enter IQK mode. */
+ rtwn_setbits_4(sc, R92C_FPGA0_IQK, ~0xff, 0x80800000);
+
+ rtwn_write_4(sc, R23B_ANT_SEL, rs->bt_antnum == 0 ?
+ R23B_ANT_SEL_S0 : R23B_ANT_SEL_S1);
+
+ /* GNT_BT = 0 */
+ rtwn_write_4(sc, R23B_GNT_BT, 0x00000800);
+
+ /* We're doing LO and IQ calibration in one shot. */
+ rtwn_write_4(sc, R92C_IQK_AGC_PTS, 0xf9000000);
+ rtwn_write_4(sc, R92C_IQK_AGC_PTS, 0xf8000000);
+
+ rtwn_delay(sc, 20000); /* 20ms */
+
+ /* Restore RF path. */
+ rtwn_write_4(sc, R23B_ANT_SEL, rf_path);
+
+ /* GNT_BT = 1 */
+ rtwn_write_4(sc, R23B_GNT_BT, 0x00001800);
+
+ /* Leave IQK mode. */
+ rtwn_setbits_4(sc, R92C_FPGA0_IQK, ~0xff, 0);
+}
+
+static bool
+r23b_iq_calib_get_tx_result(struct rtwn_softc *sc,
+ struct r23b_iqk_result *tx_result)
+{
+ uint32_t val;
+
+ val = rtwn_read_4(sc, R92C_RX_POWER_IQK_AFTER(0));
+ RTWN_DPRINTF(sc, RTWN_DEBUG_CALIB, "%s: rx_after (%#x): %#x\n",
+ __func__, R92C_RX_POWER_IQK_AFTER(0), val);
+ if (val & 0x10000000)
+ return (false);
+
+ val = rtwn_read_4(sc, R92C_TX_POWER_IQK_BEFORE(0));
+ RTWN_DPRINTF(sc, RTWN_DEBUG_CALIB, "%s: tx_before (%#x): %#x\n",
+ __func__, R92C_TX_POWER_IQK_BEFORE(0), val);
+ val = MS(val, R92C_POWER_IQK_RESULT);
+ if (val == 0x142 || val >= 0x110 || val <= 0xf0)
+ return (false);
+ tx_result->iqk_before = val;
+
+ val = rtwn_read_4(sc, R92C_TX_POWER_IQK_AFTER(0));
+ RTWN_DPRINTF(sc, RTWN_DEBUG_CALIB, "%s: tx_after (%#x): %#x\n",
+ __func__, R92C_TX_POWER_IQK_AFTER(0), val);
+
+ val = MS(val, R92C_POWER_IQK_RESULT);
+ if (val == 0x42)
+ return (false);
+ tx_result->iqk_after = val;
+
+ if ((val & 0x200) != 0)
+ val = 0x400 - val;
+ return (val < 0xf);
+}
+
+static bool
+r23b_iq_calib_get_rx_result(struct rtwn_softc *sc,
+ struct r23b_iqk_result *rx_result)
+{
+ uint32_t iqk_before, iqk_after, val;
+
+ iqk_after = rtwn_read_4(sc, R92C_RX_POWER_IQK_AFTER(0));
+ RTWN_DPRINTF(sc, RTWN_DEBUG_CALIB, "%s: rx_after (%#x): %#x\n",
+ __func__, R92C_RX_POWER_IQK_AFTER(0), iqk_after);
+
+ iqk_after = MS(iqk_after, R92C_POWER_IQK_RESULT);
+
+ iqk_before = rtwn_read_4(sc, R92C_RX_POWER_IQK_BEFORE(0));
+ RTWN_DPRINTF(sc, RTWN_DEBUG_CALIB, "%s: rx_before (%#x): %#x\n",
+ __func__, R92C_RX_POWER_IQK_BEFORE(0), iqk_before);
+
+ iqk_before = MS(iqk_before, R92C_POWER_IQK_RESULT);
+
+ /* Leave IQK mode. */
+ rtwn_setbits_4(sc, R92C_FPGA0_IQK, ~0xff, 0);
+ rtwn_rf_write(sc, 0, 0xdf, 0x780);
+
+ val = (iqk_after & 0x200) != 0 ? 0x400 - iqk_after : iqk_after;
+ if (iqk_after & 0x8000000)
+ return (false);
+
+ if (iqk_before == 0x132 || iqk_before >= 0x110 || iqk_before <= 0xf0)
+ return (false);
+
+ if (iqk_after == 0x36)
+ return (false);
+
+ if (val >= 0xf)
+ return (false);
+
+ rx_result->iqk_before = iqk_before;
+ rx_result->iqk_after = iqk_after;
+ return (true);
+}
+
+static inline void
+r23b_iq_calib_save_regs(struct rtwn_softc *sc,
+ struct r23b_iqk_reg_vals *vals)
+{
+ for (int i = 0; i < nitems(r23b_iq_calib_reg_adaa); i++)
+ vals->adaa[i] = rtwn_read_4(sc, r23b_iq_calib_reg_adaa[i]);
+
+ vals->txpause = rtwn_read_1(sc, R92C_TXPAUSE);
+
+ for (int i = 0; i < sizeof(vals->bcn_ctrl); i++)
+ vals->bcn_ctrl[i] = rtwn_read_1(sc, R92C_BCN_CTRL(i));
+
+ vals->gpio_muxcfg = rtwn_read_4(sc, R92C_GPIO_MUXCFG);
+
+ for (int i = 0; i < nitems(r23b_iq_calib_reg_iqk_bb); i++)
+ vals->iqk_bb[i] = rtwn_read_4(sc, r23b_iq_calib_reg_iqk_bb[i]);
+}
+
+static inline void
+r23b_iq_calib_restore_regs(struct rtwn_softc *sc,
+ const struct r23b_iqk_reg_vals *vals)
+{
+ for (int i = 0; i < nitems(r23b_iq_calib_reg_adaa); i++)
+ rtwn_write_4(sc, r23b_iq_calib_reg_adaa[i], vals->adaa[i]);
+
+ rtwn_write_1(sc, R92C_TXPAUSE, vals->txpause);
+
+ for (int i = 0; i < sizeof(vals->bcn_ctrl); i++)
+ rtwn_write_1(sc, R92C_BCN_CTRL(i), vals->bcn_ctrl[i]);
+
+ rtwn_write_4(sc, R92C_GPIO_MUXCFG, vals->gpio_muxcfg);
+
+ for (int i = 0; i < nitems(r23b_iq_calib_reg_iqk_bb); i++)
+ rtwn_write_4(sc, r23b_iq_calib_reg_iqk_bb[i], vals->iqk_bb[i]);
+}
+
+static void
+r23b_iq_calib_run(struct rtwn_softc *sc, struct r23b_iqk_result *tx_result,
+ struct r23b_iqk_result *rx_result, const struct r23b_iqk_reg_vals *vals)
+{
+ struct r23b_softc *rs = sc->sc_priv;
+
+ for (int i = 0; i < nitems(r23b_iq_calib_reg_adaa); i++)
+ rtwn_write_4(sc, r23b_iq_calib_reg_adaa[i], 0x01c00014);
+
+ /* MAC settings */
+
+ rtwn_write_1(sc, R92C_TXPAUSE, R92C_TX_QUEUE_AC |
+ R92C_TX_QUEUE_MGT | R92C_TX_QUEUE_HIGH);
+
+ for (int i = 0; i < sizeof(vals->bcn_ctrl); i++) {
+ rtwn_write_1(sc, R92C_BCN_CTRL(i),
+ vals->bcn_ctrl[i] & ~R92C_BCN_CTRL_EN_BCN);
+ }
+
+ rtwn_write_1(sc, R92C_GPIO_MUXCFG,
+ vals->gpio_muxcfg & ~R92C_GPIO_MUXCFG_ENBT);
+
+ /* BB settings */
+
+ rtwn_setbits_4(sc, R92C_CCK0_AFESETTING, 0, 0x0f000000);
+ rtwn_write_4(sc, R92C_OFDM0_TRXPATHENA, 0x03a05600);
+ rtwn_write_4(sc, R92C_OFDM0_TRMUXPAR, 0x000800e4);
+ rtwn_write_4(sc, R92C_FPGA0_RFIFACESW(1), 0x22204000);
+
+ /* IQ calibration settings */
+
+ rtwn_setbits_4(sc, R92C_FPGA0_IQK, ~0xff, 0);
+ rtwn_rf_setbits(sc, 0, R88E_RF_WE_LUT, 0, 0x80000);
+ rtwn_rf_write(sc, 0, R92C_RF_RCK_OS, 0x30000);
+ rtwn_rf_write(sc, 0, R92C_RF_TXPA_G(0), 0x0001f);
+ rtwn_rf_write(sc, 0, R92C_RF_TXPA_G(1), 0xf7fb7);
+ rtwn_rf_setbits(sc, 0, 0xed, 0, 0x20);
+ rtwn_rf_write(sc, 0, 0x43, 0x60fbd);
+
+ /* Path A Tx IQ calibration. */
+ for (int retry = 0; retry < 2; retry++) {
+ r23b_iq_calib_chain(sc, R23B_IQK_TX);
+
+ if (r23b_iq_calib_get_tx_result(sc, tx_result)) {
+ rtwn_setbits_4(sc, R92C_FPGA0_IQK, ~0xff, 0);
+ break;
+ }
+
+ RTWN_DPRINTF(sc, RTWN_DEBUG_CALIB,
+ "%s: Tx failed, retry=%d\n", __func__, retry);
+ }
+
+ /* Path A Rx IQ calibration. */
+ for (int retry = 0; retry < 2; retry++) {
+ struct r23b_iqk_result result;
+
+ r23b_iq_calib_chain(sc, R23B_IQK_TX_RX);
+ if (!r23b_iq_calib_get_tx_result(sc, &result)) {
+ RTWN_DPRINTF(sc, RTWN_DEBUG_CALIB,
+ "%s: Rx (Tx) failed, retry=%d\n", __func__, retry);
+ continue;
+ }
+
+ RTWN_DPRINTF(sc, RTWN_DEBUG_CALIB,
+ "%s: writing %#x to TX_IQK\n", __func__,
+ 0x80007c00 | (result.iqk_before << 16) | result.iqk_after);
+
+ rtwn_write_4(sc, R92C_TX_IQK,
+ 0x80007c00 | (result.iqk_before << 16) | result.iqk_after);
+
+ r23b_iq_calib_chain(sc, R23B_IQK_RX);
+ if (!r23b_iq_calib_get_rx_result(sc, rx_result)) {
+ RTWN_DPRINTF(sc, RTWN_DEBUG_CALIB,
+ "%s: Rx failed, retry=%d\n", __func__, retry);
+ continue;
+ }
+
+ break;
+ }
+
+ if (rs->bt_antnum == 0) {
+ RTWN_DPRINTF(sc, RTWN_DEBUG_CALIB,
+ "%s: path B IQK not implemented!\n", __func__);
+ }
+
+ rtwn_setbits_4(sc, R92C_FPGA0_IQK, ~0xff, 0);
+}
+
+static bool
+r23b_iq_calib_compare_results(
+ struct r23b_iqk_result *tx_result1, struct r23b_iqk_result *rx_result1,
+ struct r23b_iqk_result *tx_result2, struct r23b_iqk_result *rx_result2,
+ struct r23b_iqk_result **tx_candidate,
+ struct r23b_iqk_result **rx_candidate) {
+ uint32_t diff;
+ bool tx_good = false;
+
+ diff = abs(tx_result1->iqk_before - tx_result2->iqk_before);
+ if (diff > R23B_IQK_MAX_TOLERANCE)
+ goto rx_compare;
+
+ diff = abs(R23B_IQK_SIGN(tx_result1->iqk_after) -
+ R23B_IQK_SIGN(tx_result2->iqk_after));
+ if (diff <= R23B_IQK_MAX_TOLERANCE) {
+ *tx_candidate = tx_result1;
+ tx_good = true;
+ }
+
+rx_compare:
+ diff = abs(rx_result1->iqk_before - rx_result2->iqk_before);
+ if (diff > R23B_IQK_MAX_TOLERANCE) {
+ if (tx_good &&
+ rx_result1->iqk_before + rx_result1->iqk_after == 0)
+ *tx_candidate = tx_result2;
+
+ return (false);
+ }
+
+ diff = abs(R23B_IQK_SIGN(rx_result1->iqk_after) -
+ R23B_IQK_SIGN(rx_result2->iqk_after));
+ if (diff > R23B_IQK_MAX_TOLERANCE)
+ return (false);
+
+ *rx_candidate = rx_result1;
+ return (tx_good);
+}
+
+void
+r23b_iq_calib(struct rtwn_softc *sc)
+{
+ struct r23b_iqk_reg_vals vals;
+ struct r23b_iqk_result tx_result[3] = { 0 };
+ struct r23b_iqk_result rx_result[3] = { 0 };
+ struct r23b_iqk_result *tx_candidate = NULL, *rx_candidate = NULL;
+ uint32_t oldval, val;
+ uint32_t gnt_bt;
+
+#ifndef RTWN_WITHOUT_UCODE
+ /* Inform firmware that we're begininng IQK. */
+ r88e_fw_cmd(sc, R23B_CMD_WLAN_CALIB, R23B_CMD_WLAN_CALIB_BEGIN,
+ sizeof(R23B_CMD_WLAN_CALIB_BEGIN));
+#endif
+
+ /* Save GNT_BT. */
+ gnt_bt = rtwn_read_4(sc, R23B_GNT_BT);
+
+ r23b_iq_calib_save_regs(sc, &vals);
+ r23b_iq_calib_run(sc, &tx_result[0], &rx_result[0], &vals);
+ r23b_iq_calib_run(sc, &tx_result[1], &rx_result[1], &vals);
+ r23b_iq_calib_restore_regs(sc, &vals);
+
+ if (r23b_iq_calib_compare_results(&tx_result[0], &rx_result[0],
+ &tx_result[1], &rx_result[1], &tx_candidate, &rx_candidate)) {
+ RTWN_DPRINTF(sc, RTWN_DEBUG_CALIB,
+ "%s: comparing 0 and 1 succeeded\n", __func__);
+ goto write;
+ }
+
+ r23b_iq_calib_run(sc, &tx_result[2], &rx_result[2], &vals);
+ r23b_iq_calib_restore_regs(sc, &vals);
+
+ if (r23b_iq_calib_compare_results(&tx_result[0], &rx_result[0],
+ &tx_result[2], &rx_result[2], &tx_candidate, &rx_candidate)) {
+ RTWN_DPRINTF(sc, RTWN_DEBUG_CALIB,
+ "%s: comparing 0 and 2 succeeded\n", __func__);
+ goto write;
+ }
+
+ if (!r23b_iq_calib_compare_results(&tx_result[1], &rx_result[1],
+ &tx_result[2], &rx_result[2], &tx_candidate, &rx_candidate)) {
+ /* If no candidate was assigned, set the result to zero. */
+ if (tx_candidate == NULL) {
+ tx_result[0] = (struct r23b_iqk_result){ 0 };
+ tx_candidate = &tx_result[0];
+ }
+
+ if (rx_candidate == NULL) {
+ rx_result[0] = (struct r23b_iqk_result){ 0 };
+ rx_candidate = &rx_result[0];
+ }
+
+ if (tx_candidate->iqk_before == 0 &&
+ tx_candidate->iqk_after == 0 &&
+ rx_candidate->iqk_before == 0 &&
+ rx_candidate->iqk_after == 0) {
+ RTWN_DPRINTF(sc, RTWN_DEBUG_CALIB,
+ "%s: IQK failed\n", __func__);
+ goto done;
+ }
+
+ RTWN_DPRINTF(sc, RTWN_DEBUG_CALIB,
+ "%s: comparison failed but a candidate was assigned\n",
+ __func__);
+ } else {
+ RTWN_DPRINTF(sc, RTWN_DEBUG_CALIB,
+ "%s: comparing 1 and 2 succeeded\n", __func__);
+ }
+
+write:
+ RTWN_DPRINTF(sc, RTWN_DEBUG_CALIB, "%s: IQK candidate dump:\n"
+ "\ttx_candidate->iqk_before 0x%x\ttx_candidate->iqk_after 0x%x\n"
+ "\trx_candidate->iqk_before 0x%x\trx_candidate->iqk_after 0x%x\n",
+ __func__, tx_candidate->iqk_before, tx_candidate->iqk_after,
+ rx_candidate->iqk_before, rx_candidate->iqk_after);
+
+ /*
+ * Don't write both the tx and rx configuration
+ * values if tx IQK failed.
+ */
+ if (tx_candidate->iqk_before == 0)
+ goto done;
+
+ /* Write path A values */
+
+ oldval = rtwn_read_4(sc, R92C_OFDM0_TXIQIMBALANCE(0));
+ oldval = (oldval >> 22) & 0x3ff;
+
+ val = (R23B_IQK_SIGN(tx_candidate->iqk_before) * oldval) >> 7;
+ rtwn_setbits_4(sc, R92C_OFDM0_TXIQIMBALANCE(0), 0x3ff,
+ (val >> 1) & 0x3ff);
+ rtwn_setbits_4(sc, R92C_OFDM0_ECCATHRESHOLD, 0x80000000, val << 31);
+
+ val = (R23B_IQK_SIGN(tx_candidate->iqk_after) * oldval) >> 7;
+ rtwn_setbits_4(sc, R92C_TX_POWER_IQK_BEFORE(0),
+ 0xf0000000, (((val >> 1) & 0x3c0) >> 6) << 28);
+ rtwn_setbits_4(sc, R92C_OFDM0_TXIQIMBALANCE(0),
+ 0x3f0000, ((val >> 1) & 0x3f) << 16);
+ rtwn_setbits_4(sc, R92C_OFDM0_ECCATHRESHOLD,
+ 0x10000000, (val << 29) & 0x1);
+
+ /* Skip the rx configuration values if rx IQK failed. */
+ if (rx_candidate->iqk_before == 0)
+ goto done;
+
+ val = rx_candidate->iqk_after & 0x3f;
+ rtwn_setbits_4(sc, R92C_OFDM0_RXIQIMBALANCE(0), 0x3ff,
+ rx_candidate->iqk_before);
+ rtwn_setbits_4(sc, R92C_OFDM0_RXIQIMBALANCE(0), 0xfc00, val << 10);
+
+ val = (rx_candidate->iqk_after >> 6) & 0xf;
+ rtwn_setbits_4(sc, R92C_OFDM0_RXIQEXTANTA, 0xf0000000, val << 28);
+done:
+ /* Restore GNT_BT. */
+ rtwn_write_4(sc, R23B_GNT_BT, gnt_bt);
+
+ rtwn_rf_setbits(sc, 0, R88E_RF_WE_LUT, 0, 0x80000);
+ rtwn_rf_write(sc, 0, R92C_RF_RCK_OS, 0x18000);
+ rtwn_rf_write(sc, 0, R92C_RF_TXPA_G(0), 0x0001f);
+ rtwn_rf_write(sc, 0, R92C_RF_TXPA_G(0), 0xe6177);
+ rtwn_rf_setbits(sc, 0, 0xed, 0, 0x20);
+ rtwn_rf_write(sc, 0, 0x43, 0x300bd);
+
+#ifndef RTWN_WITHOUT_UCODE
+ /* Inform firmware that we're done. */
+ r88e_fw_cmd(sc, R23B_CMD_WLAN_CALIB, R23B_CMD_WLAN_CALIB_END,
+ sizeof(R23B_CMD_WLAN_CALIB_END));
+#endif
+}
+
+void
+r23b_temp_measure(struct rtwn_softc *sc)
+{
+ rtwn_rf_setbits(sc, 0, R88E_RF_T_METER, 0, R88E_RF_T_METER_START);
+}
diff --git a/sys/dev/rtwn/rtl8723b/r23b_fw.c b/sys/dev/rtwn/rtl8723b/r23b_fw.c
new file mode 100644
--- /dev/null
+++ b/sys/dev/rtwn/rtl8723b/r23b_fw.c
@@ -0,0 +1,81 @@
+/*
+ * Copyright (c) 2026 Ahmad Khalifa <vexeduxr@FreeBSD.org>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#include <sys/param.h>
+#include <sys/lock.h>
+#include <sys/mutex.h>
+#include <sys/mbuf.h>
+#include <sys/kernel.h>
+#include <sys/socket.h>
+#include <sys/systm.h>
+#include <sys/malloc.h>
+#include <sys/queue.h>
+#include <sys/taskqueue.h>
+#include <sys/bus.h>
+#include <sys/endian.h>
+#include <sys/linker.h>
+
+#include <net/if.h>
+#include <net/ethernet.h>
+#include <net/if_media.h>
+
+#include <net80211/ieee80211_var.h>
+#include <net80211/ieee80211_radiotap.h>
+
+#include <dev/rtwn/if_rtwnreg.h>
+#include <dev/rtwn/if_rtwnvar.h>
+
+#include <dev/rtwn/rtl8192c/r92c.h>
+#include <dev/rtwn/rtl8192c/r92c_reg.h>
+
+#include <dev/rtwn/rtl8192e/r92e.h>
+
+#include <dev/rtwn/rtl8723b/r23b.h>
+
+#ifndef RTWN_WITHOUT_UCODE
+void
+r23b_fw_reset(struct rtwn_softc *sc, int reason)
+{
+ switch (reason) {
+ case RTWN_FW_RESET_DOWNLOAD:
+ case RTWN_FW_RESET_SHUTDOWN:
+ return (r92c_fw_reset(sc, reason));
+ case RTWN_FW_RESET_CHECKSUM:
+ return (r92e_fw_reset(sc, reason));
+ }
+}
+
+void
+r23b_fw_download_enable(struct rtwn_softc *sc, int enable)
+{
+ if (!enable) {
+ /* MCU download disable. */
+ rtwn_setbits_1(sc, R92C_MCUFWDL, R92C_MCUFWDL_EN, 0);
+ return;
+ }
+
+ /* 8051 enable. */
+ rtwn_setbits_1_shift(sc, R92C_SYS_FUNC_EN, 0,
+ R92C_SYS_FUNC_EN_CPUEN, 1);
+ /* MCU firmware download enable. */
+ rtwn_setbits_1(sc, R92C_MCUFWDL, 0, R92C_MCUFWDL_EN);
+
+ for (int ntries = 0; ntries <= 100; ntries++) {
+ uint8_t val;
+
+ val = rtwn_read_1(sc, R92C_MCUFWDL);
+ if (val & R92C_MCUFWDL_EN)
+ break;
+
+ rtwn_write_1(sc, R92C_MCUFWDL, val | R92C_MCUFWDL_EN);
+ rtwn_delay(sc, 1000);
+ }
+
+ /* 8051 reset. */
+ rtwn_setbits_1_shift(sc, R92C_MCUFWDL, R92C_MCUFWDL_ROM_DLEN,
+ 0, 2);
+}
+#endif
diff --git a/sys/dev/rtwn/rtl8723b/r23b_fw_cmd.h b/sys/dev/rtwn/rtl8723b/r23b_fw_cmd.h
new file mode 100644
--- /dev/null
+++ b/sys/dev/rtwn/rtl8723b/r23b_fw_cmd.h
@@ -0,0 +1,55 @@
+/*
+ * Copyright (c) 2026 Ahmad Khalifa <vexeduxr@FreeBSD.org>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#ifndef R23B_FW_CMD_H
+#define R23B_FW_CMD_H
+
+/*
+ * Host to firmware commands.
+ */
+#define R23B_CMD_RSSI_SETTING 0x42
+#define R23B_CMD_PS_TDMA 0x60
+#define R23B_CMD_BT_INFO 0x61
+#define R23B_CMD_BT_WLANACT 0x63
+#define R23B_CMD_ANT_INV 0x65
+#define R23B_CMD_BT_MP_OPER 0x67
+#define R23B_CMD_WLAN_CALIB 0x6d
+#define R23B_CMD_BT_GRANT 0x6e
+
+#define R23B_CMD_BT_WLANACT_IGNORE ((uint8_t[]){ 0 })
+
+#define R23B_CMD_WLAN_CALIB_BEGIN ((uint8_t[]){ 1 })
+#define R23B_CMD_WLAN_CALIB_END ((uint8_t[]){ 0 })
+
+#define R23B_CMD_BT_GRANT_LOW ((uint8_t[]){ 0 })
+#define R23B_CMD_BT_GRANT_HIGH ((uint8_t[]){ 1 })
+
+/* Structure for R23B_CMD_RSSI_SETTING. */
+struct r23b_fw_cmd_rssi {
+ uint8_t macid;
+ uint8_t reserved;
+ uint8_t pwdb;
+ uint8_t uldl;
+} __packed;
+
+/* Structure for R23B_CMD_BT_MP_OPER. */
+struct r23b_fw_cmd_btoper {
+ uint8_t req_num;
+ uint8_t opcode;
+#define R23B_BT_MP_OPER_WRITE_VAL 0xd
+#define R23B_BT_MP_OPER_WRITE_ADDR 0xc
+
+ uint8_t value;
+ uint8_t addr;
+} __packed;
+
+/* Structure for R23B_CMD_ANT_INV. */
+struct r23b_fw_cmd_antinv {
+ uint8_t invert;
+ uint8_t internal_switch;
+} __packed;
+
+#endif
diff --git a/sys/dev/rtwn/rtl8723b/r23b_init.c b/sys/dev/rtwn/rtl8723b/r23b_init.c
new file mode 100644
--- /dev/null
+++ b/sys/dev/rtwn/rtl8723b/r23b_init.c
@@ -0,0 +1,235 @@
+/*
+ * Copyright (c) 2026 Ahmad Khalifa <vexeduxr@FreeBSD.org>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#include <sys/param.h>
+#include <sys/lock.h>
+#include <sys/mutex.h>
+#include <sys/mbuf.h>
+#include <sys/kernel.h>
+#include <sys/socket.h>
+#include <sys/systm.h>
+#include <sys/malloc.h>
+#include <sys/queue.h>
+#include <sys/taskqueue.h>
+#include <sys/bus.h>
+#include <sys/endian.h>
+#include <sys/linker.h>
+
+#include <net/if.h>
+#include <net/ethernet.h>
+#include <net/if_media.h>
+
+#include <net80211/ieee80211_var.h>
+#include <net80211/ieee80211_radiotap.h>
+
+#include <dev/rtwn/if_rtwnreg.h>
+#include <dev/rtwn/if_rtwnvar.h>
+
+#include <dev/rtwn/rtl8188e/r88e.h>
+#include <dev/rtwn/rtl8188e/r88e_reg.h>
+
+#include <dev/rtwn/rtl8192c/r92c_reg.h>
+
+#include <dev/rtwn/rtl8192e/r92e.h>
+#include <dev/rtwn/rtl8192e/r92e_var.h>
+
+#include <dev/rtwn/rtl8723b/r23b.h>
+#include <dev/rtwn/rtl8723b/r23b_reg.h>
+#include <dev/rtwn/rtl8723b/r23b_var.h>
+#include <dev/rtwn/rtl8723b/r23b_fw_cmd.h>
+
+#include <dev/rtwn/rtl8821a/r21a_reg.h>
+
+int
+r23b_set_page_size(struct rtwn_softc *sc)
+{
+ return (rtwn_write_1(sc, R92C_PBP, SM(R92C_PBP_PSRX, R92C_PBP_256) |
+ SM(R92C_PBP_PSTX, R92C_PBP_256)));
+}
+
+void
+r23b_init_antsel(struct rtwn_softc *sc)
+{
+ rtwn_setbits_4(sc, R88E_BB_PAD_CTRL, 0x1100000, 0);
+ rtwn_setbits_4(sc, R92C_GPIO_MUXCFG, 0x10, 0x8);
+ rtwn_setbits_4(sc, R92C_LEDCFG0, 0x400000, 0x800000);
+ rtwn_setbits_4(sc, 0x944, 0, 0x3);
+ rtwn_setbits_4(sc, 0x930, 0xff, 0x77);
+ rtwn_setbits_4(sc, R92C_PWR_DATA, 0, 0x800);
+}
+
+void
+r23b_init_bb_common(struct rtwn_softc *sc)
+{
+ struct r23b_softc *rs = sc->sc_priv;
+ uint8_t val;
+
+ /* PathA RF Power On. */
+ rtwn_write_1(sc, R92C_RF_CTRL,
+ R92C_RF_CTRL_EN | R92C_RF_CTRL_RSTB | R92C_RF_CTRL_SDMRSTB);
+
+ rtwn_delay(sc, 10);
+
+ rtwn_rf_write(sc, 0, R92C_RF_IQADJ_G(0), 0x780);
+
+ rtwn_write_1(sc, R92C_SYS_FUNC_EN, R92C_SYS_FUNC_EN_BBRSTB |
+ R92C_SYS_FUNC_EN_BB_GLB_RST | R92C_SYS_FUNC_EN_DIO_PCIE |
+ R92C_SYS_FUNC_EN_PCIEA | R92C_SYS_FUNC_EN_PPLL);
+
+ rtwn_write_1(sc, R92C_AFE_XTAL_CTRL + 1, 0x80);
+
+ for (int i = 0; i < sc->bb_size; i++) {
+ const struct rtwn_bb_prog *bb_prog = &sc->bb_prog[i];
+
+ for (int j = 0; j < bb_prog->count; j++) {
+ rtwn_write_4(sc, bb_prog->reg[j], bb_prog->val[j]);
+ rtwn_delay(sc, 1);
+ }
+ }
+
+ for (int i = 0; i < sc->agc_size; i++) {
+ const struct rtwn_agc_prog *agc_prog = &sc->agc_prog[i];
+
+ for (int j = 0; j < agc_prog->count; j++) {
+ rtwn_write_4(sc, R92C_OFDM0_AGCRSSITABLE,
+ agc_prog->val[j]);
+ rtwn_delay(sc, 1);
+ }
+ }
+
+ rtwn_write_4(sc, R92C_OFDM0_AGCCORE1(0), 0x69553422);
+ rtwn_delay(sc, 1);
+ rtwn_write_4(sc, R92C_OFDM0_AGCCORE1(0), 0x69553420);
+ rtwn_delay(sc, 1);
+ rtwn_write_4(sc, R92C_HSSI_PARAM2(0), 0x00390204);
+ rtwn_delay(sc, 1);
+
+ val = rs->super.crystalcap & 0x3f;
+ rtwn_setbits_4(sc, R92C_MAC_PHY_CTRL, R21A_MAC_PHY_CRYSTALCAP_M,
+ SM(R21A_MAC_PHY_CRYSTALCAP, val | (val << 6)));
+}
+
+void
+r23b_init_rf(struct rtwn_softc *sc)
+{
+ r92e_init_rf(sc);
+
+ /* Init LCK. */
+ rtwn_rf_write(sc, 0, R23B_RF_S0S1, 0xdfbe0);
+ rtwn_rf_write(sc, 0, R92C_RF_CHNLBW, 0x8c01);
+ rtwn_delay(sc, 200000);
+ rtwn_rf_write(sc, 0, R23B_RF_S0S1, 0xdffe0);
+}
+
+#ifndef RTWN_WITHOUT_UCODE
+static void
+r23b_write_btreg(struct rtwn_softc *sc, uint8_t addr, uint8_t data)
+{
+ struct r23b_fw_cmd_btoper cmd;
+
+ cmd.req_num = 0;
+ cmd.opcode = R23B_BT_MP_OPER_WRITE_VAL;
+ cmd.value = data;
+ cmd.addr = 0;
+ r88e_fw_cmd(sc, R23B_CMD_BT_MP_OPER, &cmd, sizeof(cmd));
+
+ rtwn_delay(sc, 200000); /* 200ms */
+
+ cmd.req_num = 1;
+ cmd.opcode = R23B_BT_MP_OPER_WRITE_ADDR;
+ cmd.value = 0;
+ cmd.addr = addr;
+ r88e_fw_cmd(sc, R23B_CMD_BT_MP_OPER, &cmd, sizeof(cmd));
+}
+#endif
+
+void
+r23b_post_init(struct rtwn_softc *sc)
+{
+#ifndef RTWN_WITHOUT_UCODE
+ struct r23b_fw_cmd_antinv cmd;
+ const uint8_t ps_tdma[5] = { 0x8, 0x0, 0x0, 0x0, 0x0 };
+#endif
+
+ if (sc->macid_rpt2_max_num > 0) {
+ rtwn_setbits_1(sc, R88E_TX_RPT_CTRL, 0, R88E_TX_RPT2_ENA);
+ rtwn_write_1(sc, R88E_TX_RPT_MACID_MAX, sc->macid_rpt2_max_num);
+ /* Enable periodic TX report; 32uS units */
+ rtwn_write_2(sc, R88E_TX_RPT_TIME, 0xcdf0);
+ }
+
+ rtwn_lc_calib(sc);
+ rtwn_iq_calib(sc);
+
+ /* Enable RF */
+
+ /* XXX lots of magic numbers here. */
+
+ rtwn_write_1(sc, 0x790, 0x5);
+ rtwn_write_1(sc, 0x778, 0x1);
+ rtwn_setbits_1(sc, R92C_GPIO_MUXCFG, 0, R92C_GPIO_MUXCFG_ENBT);
+
+ /* WiFi TRx Mask on */
+ rtwn_rf_write(sc, 0, R92C_RF_IQADJ_G(0), 0x780);
+
+#ifndef RTWN_WITHOUT_UCODE
+ /* BT TRx Mask on */
+ r23b_write_btreg(sc, 0x3c, 0x15);
+
+ r88e_fw_cmd(sc, R23B_CMD_BT_GRANT, R23B_CMD_BT_GRANT_LOW,
+ sizeof(R23B_CMD_BT_GRANT_LOW));
+#endif
+
+ rtwn_write_1(sc, 0x76e, 0x4);
+ rtwn_setbits_1(sc, R88E_BB_PAD_CTRL + 3, 0, 0x20);
+ rtwn_setbits_1(sc, R92C_PWR_DATA + 1, 0, 0x8);
+ rtwn_write_1(sc, 0x974, 0xff);
+ rtwn_setbits_1(sc, 0x944, 0, 0x3);
+ rtwn_write_1(sc, 0x930, 0x77);
+
+ rtwn_setbits_4(sc, R92C_LEDCFG0, 0x1000000, 0x800000);
+ rtwn_setbits_1(sc, R88E_BB_PAD_CTRL, 0x1, 0);
+
+#ifndef RTWN_WITHOUT_UCODE
+ /* Inform firmware of the antenna inversion. */
+ cmd.internal_switch = 0;
+ cmd.invert = 1;
+
+ r88e_fw_cmd(sc, R23B_CMD_ANT_INV, &cmd, sizeof(cmd));
+#endif
+
+ rtwn_write_4(sc, R23B_ANT_SEL, 0x80);
+
+#ifndef RTWN_WITHOUT_UCODE
+ r88e_fw_cmd(sc, R23B_CMD_PS_TDMA, ps_tdma, sizeof(ps_tdma));
+#endif
+
+ /* btcoex table */
+ rtwn_write_4(sc, R23B_BTCOEX_TABLE(0), 0x55555555);
+ rtwn_write_4(sc, R23B_BTCOEX_TABLE(1), 0x55555555);
+ rtwn_write_4(sc, R23B_BTCOEX_TABLE(2), 0x00ffffff);
+ rtwn_write_4(sc, R23B_BTCOEX_TABLE(3), 0x00000003);
+
+#ifndef RTWN_WITHOUT_UCODE
+ r88e_fw_cmd(sc, R23B_CMD_BT_INFO, &(uint8_t){ 1 }, sizeof(uint8_t));
+ r88e_fw_cmd(sc, R23B_CMD_BT_WLANACT, R23B_CMD_BT_WLANACT_IGNORE,
+ sizeof(R23B_CMD_BT_WLANACT_IGNORE));
+#endif
+
+ /* ACK for xmit mgmt frames. */
+ rtwn_setbits_4(sc, R92C_FWHW_TXQ_CTRL, 0, R23B_FWHW_TXQ_CTRL_ACK_MGNT);
+
+#ifndef RTWN_WITHOUT_UCODE
+ if (sc->sc_flags & RTWN_FW_LOADED) {
+ if (sc->sc_ratectl_sysctl == RTWN_RATECTL_FW) {
+ /* TODO: implement */
+ sc->sc_ratectl = RTWN_RATECTL_NET80211;
+ } else
+ sc->sc_ratectl = sc->sc_ratectl_sysctl;
+ } else
+#endif
+ sc->sc_ratectl = RTWN_RATECTL_NONE;
+}
diff --git a/sys/dev/rtwn/rtl8723b/r23b_led.c b/sys/dev/rtwn/rtl8723b/r23b_led.c
new file mode 100644
--- /dev/null
+++ b/sys/dev/rtwn/rtl8723b/r23b_led.c
@@ -0,0 +1,45 @@
+/*
+ * Copyright (c) 2026 Ahmad Khalifa <vexeduxr@FreeBSD.org>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#include <sys/param.h>
+#include <sys/lock.h>
+#include <sys/mutex.h>
+#include <sys/mbuf.h>
+#include <sys/kernel.h>
+#include <sys/socket.h>
+#include <sys/systm.h>
+#include <sys/malloc.h>
+#include <sys/queue.h>
+#include <sys/taskqueue.h>
+#include <sys/bus.h>
+#include <sys/endian.h>
+#include <sys/linker.h>
+
+#include <net/if.h>
+#include <net/ethernet.h>
+#include <net/if_media.h>
+
+#include <net80211/ieee80211_var.h>
+#include <net80211/ieee80211_radiotap.h>
+
+#include <dev/rtwn/if_rtwnreg.h>
+#include <dev/rtwn/if_rtwnvar.h>
+
+#include <dev/rtwn/rtl8192c/r92c_reg.h>
+
+#include <dev/rtwn/rtl8723b/r23b.h>
+#include <dev/rtwn/rtl8723b/r23b_reg.h>
+
+void
+r23b_set_led(struct rtwn_softc *sc, int led, int on)
+{
+ if (led != RTWN_LED_LINK)
+ return;
+
+ sc->ledlink = on;
+ rtwn_setbits_1(sc, R92C_LEDCFG2, R23B_LEDCFG2_LED_M,
+ R23B_LEDCFG2_LED_SW_CTRL | (on ? 0 : R23B_LEDCFG2_LED_DISABLE));
+}
diff --git a/sys/dev/rtwn/rtl8723b/r23b_priv.h b/sys/dev/rtwn/rtl8723b/r23b_priv.h
new file mode 100644
--- /dev/null
+++ b/sys/dev/rtwn/rtl8723b/r23b_priv.h
@@ -0,0 +1,211 @@
+/*
+ * Copyright (c) 2026 Ahmad Khalifa <vexeduxr@FreeBSD.org>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#ifndef R23B_PRIV_H
+#define R23B_PRIV_H
+
+#include <dev/rtwn/rtl8723b/r23b_rom_defs.h>
+
+static const struct rtwn_mac_prog rtl8723b_mac[] = {
+ { 0x02f, 0x30 }, { 0x035, 0x00 }, { 0x039, 0x08 }, { 0x04e, 0xe0 },
+ { 0x064, 0x00 }, { 0x067, 0x20 }, { 0x428, 0x0a }, { 0x429, 0x10 },
+ { 0x430, 0x00 }, { 0x431, 0x00 }, { 0x432, 0x00 }, { 0x433, 0x01 },
+ { 0x434, 0x04 }, { 0x435, 0x05 }, { 0x436, 0x07 }, { 0x437, 0x08 },
+ { 0x43c, 0x04 }, { 0x43d, 0x05 }, { 0x43e, 0x07 }, { 0x43f, 0x08 },
+ { 0x440, 0x5d }, { 0x441, 0x01 }, { 0x442, 0x00 }, { 0x444, 0x10 },
+ { 0x445, 0x00 }, { 0x446, 0x00 }, { 0x447, 0x00 }, { 0x448, 0x00 },
+ { 0x449, 0xf0 }, { 0x44a, 0x0f }, { 0x44b, 0x3e }, { 0x44c, 0x10 },
+ { 0x44d, 0x00 }, { 0x44e, 0x00 }, { 0x44f, 0x00 }, { 0x450, 0x00 },
+ { 0x451, 0xf0 }, { 0x452, 0x0f }, { 0x453, 0x00 }, { 0x456, 0x5e },
+ { 0x460, 0x66 }, { 0x461, 0x66 }, { 0x4c8, 0xff }, { 0x4c9, 0x08 },
+ { 0x4cc, 0xff }, { 0x4cd, 0xff }, { 0x4ce, 0x01 }, { 0x500, 0x26 },
+ { 0x501, 0xa2 }, { 0x502, 0x2f }, { 0x503, 0x00 }, { 0x504, 0x28 },
+ { 0x505, 0xa3 }, { 0x506, 0x5e }, { 0x507, 0x00 }, { 0x508, 0x2b },
+ { 0x509, 0xa4 }, { 0x50a, 0x5e }, { 0x50b, 0x00 }, { 0x50c, 0x4f },
+ { 0x50d, 0xa4 }, { 0x50e, 0x00 }, { 0x50f, 0x00 }, { 0x512, 0x1c },
+ { 0x514, 0x0a }, { 0x516, 0x0a }, { 0x525, 0x4f }, { 0x550, 0x10 },
+ { 0x551, 0x10 }, { 0x559, 0x02 }, { 0x55c, 0x50 }, { 0x55d, 0xff },
+ { 0x605, 0x30 }, { 0x608, 0x0e }, { 0x609, 0x2a }, { 0x620, 0xff },
+ { 0x621, 0xff }, { 0x622, 0xff }, { 0x623, 0xff }, { 0x624, 0xff },
+ { 0x625, 0xff }, { 0x626, 0xff }, { 0x627, 0xff }, { 0x638, 0x50 },
+ { 0x63c, 0x0a }, { 0x63d, 0x0a }, { 0x63e, 0x0e }, { 0x63f, 0x0e },
+ { 0x640, 0x40 }, { 0x642, 0x40 }, { 0x643, 0x00 }, { 0x652, 0xc8 },
+ { 0x66e, 0x05 }, { 0x700, 0x21 }, { 0x701, 0x43 }, { 0x702, 0x65 },
+ { 0x703, 0x87 }, { 0x708, 0x21 }, { 0x709, 0x43 }, { 0x70a, 0x65 },
+ { 0x70b, 0x87 }, { 0x765, 0x18 }, { 0x76e, 0x04 }
+};
+
+static const uint16_t rtl8723b_bb_regs[] = {
+ 0x800, 0x804, 0x808, 0x80c, 0x810, 0x814, 0x818, 0x81c, 0x820, 0x824,
+ 0x828, 0x82c, 0x830, 0x834, 0x838, 0x83c, 0x840, 0x844, 0x848, 0x84c,
+ 0x850, 0x854, 0x858, 0x85c, 0x860, 0x864, 0x868, 0x86c, 0x870, 0x874,
+ 0x878, 0x87c, 0x880, 0x884, 0x888, 0x88c, 0x890, 0x894, 0x898, 0x89c,
+ 0x900, 0x904, 0x908, 0x90c, 0x910, 0x914, 0xa00, 0xa04, 0xa08, 0xa0c,
+ 0xa10, 0xa14, 0xa18, 0xa1c, 0xa20, 0xa24, 0xa28, 0xa2c, 0xa70, 0xa74,
+ 0xa78, 0xa7c, 0xa80, 0xb2c, 0xc00, 0xc04, 0xc08, 0xc0c, 0xc10, 0xc14,
+ 0xc18, 0xc1c, 0xc20, 0xc24, 0xc28, 0xc2c, 0xc30, 0xc34, 0xc38, 0xc3c,
+ 0xc40, 0xc44, 0xc48, 0xc4c, 0xc50, 0xc54, 0xc58, 0xc5c, 0xc60, 0xc64,
+ 0xc68, 0xc6c, 0xc70, 0xc74, 0xc78, 0xc7c, 0xc80, 0xc84, 0xc88, 0xc8c,
+ 0xc90, 0xc94, 0xc98, 0xc9c, 0xca0, 0xca4, 0xca8, 0xcac, 0xcb0, 0xcb4,
+ 0xcb8, 0xcbc, 0xcc0, 0xcc4, 0xcc8, 0xccc, 0xcd0, 0xcd4, 0xcd8, 0xcdc,
+ 0xce0, 0xce4, 0xce8, 0xcec, 0xd00, 0xd04, 0xd08, 0xd0c, 0xd10, 0xd14,
+ 0xd18, 0xd2c, 0xd30, 0xd34, 0xd38, 0xd3c, 0xd40, 0xd44, 0xd48, 0xd4c,
+ 0xd50, 0xd54, 0xd58, 0xd5c, 0xd60, 0xd64, 0xd68, 0xd6c, 0xd70, 0xd74,
+ 0xd78, 0xe00, 0xe04, 0xe08, 0xe10, 0xe14, 0xe18, 0xe1c, 0xe28, 0xe30,
+ 0xe34, 0xe38, 0xe3c, 0xe40, 0xe44, 0xe48, 0xe4c, 0xe50, 0xe54, 0xe58,
+ 0xe5c, 0xe60, 0xe68, 0xe6c, 0xe70, 0xe74, 0xe78, 0xe7c, 0xe80, 0xe84,
+ 0xe88, 0xe8c, 0xed0, 0xed4, 0xed8, 0xedc, 0xee0, 0xeec, 0xf14, 0xf4c,
+ 0xf00, 0x820, 0x800
+};
+
+static const uint32_t rtl8723b_bb_vals[] = {
+ 0x80040000, 0x00000003, 0x0000fc00, 0x0000000a, 0x10001331, 0x020c3d10,
+ 0x02200385, 0x00000000, 0x01000100, 0x00190204, 0x00000000, 0x00000000,
+ 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00010000, 0x00000000,
+ 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x569a11a9, 0x01000014,
+ 0x66f60110, 0x061f0649, 0x00000000, 0x27272700, 0x07000760, 0x25004000,
+ 0x00000808, 0x00000000, 0xb0000c1c, 0x00000001, 0x00000000, 0xccc000c0,
+ 0x00000800, 0xfffffffe, 0x40302010, 0x00706050, 0x00000000, 0x00000023,
+ 0x00000000, 0x81121111, 0x00000002, 0x00000201, 0x00d047c8, 0x80ff800c,
+ 0x8c838300, 0x2e7f120f, 0x9500bb78, 0x1114d028, 0x00881117, 0x89140f00,
+ 0x1a1b0000, 0x090e1317, 0x00000204, 0x00d30000, 0x101fbf00, 0x00000007,
+ 0x00000900, 0x225b0606, 0x21806490, 0x00000000, 0x48071d40, 0x03a05611,
+ 0x000000e4, 0x6c6c6c6c, 0x08800000, 0x40000100, 0x08800000, 0x40000100,
+ 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x69e9ac44, 0x469652af,
+ 0x49795994, 0x0a97971c, 0x1f7c403f, 0x000100b7, 0xec020107, 0x007f037f,
+ 0x69553420, 0x43bc0094, 0x00013149, 0x00250492, 0x00000000, 0x7112848b,
+ 0x47c00bff, 0x00000036, 0x2c7f000d, 0x020610db, 0x0000001f, 0x00b91612,
+ 0x390000e4, 0x20f60000, 0x40000100, 0x20200000, 0x00020e1a, 0x00000000,
+ 0x00020e1a, 0x00007f7f, 0x00000000, 0x000300a0, 0x00000000, 0x00000000,
+ 0x00000000, 0x00000000, 0x00000000, 0x28000000, 0x00000000, 0x00000000,
+ 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x64b22427, 0x00766932,
+ 0x00222222, 0x00000000, 0x37644302, 0x2f97d40c, 0x00000740, 0x40020401,
+ 0x0000907f, 0x20010201, 0xa0633333, 0x3333bc53, 0x7a8f5b6f, 0xcc979975,
+ 0x00000000, 0x80608000, 0x00000000, 0x00127353, 0x00000000, 0x00000000,
+ 0x00000000, 0x00000000, 0x6437140a, 0x00000000, 0x00000282, 0x30032064,
+ 0x4653de68, 0x04518a3c, 0x00002101, 0x2a201c16, 0x1812362e, 0x322c2220,
+ 0x000e3c24, 0x2d2d2d2d, 0x2d2d2d2d, 0x0390272d, 0x2d2d2d2d, 0x2d2d2d2d,
+ 0x2d2d2d2d, 0x2d2d2d2d, 0x00000000, 0x1000dc1f, 0x10008c1f, 0x02140102,
+ 0x681604c2, 0x01007c00, 0x01004800, 0xfb000000, 0x000028d1, 0x1000dc1f,
+ 0x10008c1f, 0x02140102, 0x28160d05, 0x00000008, 0x001b2556, 0x00c00096,
+ 0x00c00096, 0x01000056, 0x01000014, 0x01000056, 0x01000014, 0x00c00096,
+ 0x01000056, 0x00c00096, 0x00c00096, 0x00c00096, 0x00c00096, 0x000000d6,
+ 0x000000d6, 0x01c00016, 0x00000003, 0x00000000, 0x00000300, 0x01000100,
+ 0x83040000
+};
+
+static const struct rtwn_bb_prog rtl8723b_bb[] = {
+ {
+ nitems(rtl8723b_bb_regs),
+ rtl8723b_bb_regs,
+ rtl8723b_bb_vals,
+ { 0 },
+ NULL
+ }
+};
+
+static const uint32_t rtl8723b_agc_vals[] = {
+ 0xfd000001, 0xfc010001, 0xfb020001, 0xfa030001, 0xf9040001, 0xf8050001,
+ 0xf7060001, 0xf6070001, 0xf5080001, 0xf4090001, 0xf30a0001, 0xf20b0001,
+ 0xf10c0001, 0xf00d0001, 0xef0e0001, 0xee0f0001, 0xed100001, 0xec110001,
+ 0xeb120001, 0xea130001, 0xe9140001, 0xe8150001, 0xe7160001, 0xe6170001,
+ 0xe5180001, 0xe4190001, 0xe31a0001, 0xa51b0001, 0xa41c0001, 0xa31d0001,
+ 0x671e0001, 0x661f0001, 0x65200001, 0x64210001, 0x63220001, 0x4a230001,
+ 0x49240001, 0x48250001, 0x47260001, 0x46270001, 0x45280001, 0x44290001,
+ 0x432a0001, 0x422b0001, 0x292c0001, 0x282d0001, 0x272e0001, 0x262f0001,
+ 0x0a300001, 0x09310001, 0x08320001, 0x07330001, 0x06340001, 0x05350001,
+ 0x04360001, 0x03370001, 0x02380001, 0x01390001, 0x013a0001, 0x013b0001,
+ 0x013c0001, 0x013d0001, 0x013e0001, 0x013f0001, 0xfc400001, 0xfb410001,
+ 0xfa420001, 0xf9430001, 0xf8440001, 0xf7450001, 0xf6460001, 0xf5470001,
+ 0xf4480001, 0xf3490001, 0xf24a0001, 0xf14b0001, 0xf04c0001, 0xef4d0001,
+ 0xee4e0001, 0xed4f0001, 0xec500001, 0xeb510001, 0xea520001, 0xe9530001,
+ 0xe8540001, 0xe7550001, 0xe6560001, 0xe5570001, 0xe4580001, 0xe3590001,
+ 0xa65a0001, 0xa55b0001, 0xa45c0001, 0xa35d0001, 0x675e0001, 0x665f0001,
+ 0x65600001, 0x64610001, 0x63620001, 0x62630001, 0x61640001, 0x48650001,
+ 0x47660001, 0x46670001, 0x45680001, 0x44690001, 0x436a0001, 0x426b0001,
+ 0x286c0001, 0x276d0001, 0x266e0001, 0x256f0001, 0x24700001, 0x09710001,
+ 0x08720001, 0x07730001, 0x06740001, 0x05750001, 0x04760001, 0x03770001,
+ 0x02780001, 0x01790001, 0x017a0001, 0x017b0001, 0x017c0001, 0x017d0001,
+ 0x017e0001, 0x017f0001
+};
+
+static const struct rtwn_agc_prog rtl8723b_agc[] = {
+ {
+ nitems(rtl8723b_agc_vals),
+ rtl8723b_agc_vals,
+ { 0 },
+ NULL
+ }
+};
+
+static const uint8_t rtl8723b_rf_regs[] = {
+ 0x000, 0x0b0, 0x0fe, 0x0fe, 0x0fe, 0x0b1, 0x0fe, 0x0fe, 0x0fe, 0x0b2,
+ 0x0b5, 0x0b6, 0x0b7, 0x0b8, 0x05c, 0x07c, 0x07e, 0x08b, 0x0b0, 0x01c,
+ 0x01e, 0x0df, 0x050,
+
+ /*
+ * The vendor driver has a condition here that sets this to 0x0006b10e
+ * if the package type is TFBGA90, TFBGA80 or TFBGA79.
+ *
+ * However, it seems to never actually read the package type from the
+ * ROM, so in practice this is always ignored.
+ */
+ 0x051,
+
+ 0x052, 0x053, 0x054, 0x055, 0x0dd, 0x070,
+
+ /* Same here. */
+ 0x071,
+
+ 0x072, 0x073, 0x074, 0x075, 0x0ef, 0x034, 0x035, 0x034, 0x035, 0x034,
+ 0x035, 0x034, 0x035, 0x034, 0x035, 0x034, 0x035, 0x034, 0x035, 0x034,
+ 0x035, 0x034, 0x035, 0x034, 0x035, 0x034, 0x035, 0x0ef, 0x0ef, 0x0ed,
+ 0x044, 0x044, 0x044, 0x044, 0x044, 0x044, 0x044, 0x044, 0x044, 0x044,
+ 0x044, 0x0ef, 0x0ed, 0x07f, 0x0ef, 0x03b, 0x03b, 0x03b, 0x03b, 0x03b,
+ 0x03b, 0x03b, 0x03b, 0x0ef, 0x0ed, 0x040, 0x040, 0x040, 0x040, 0x040,
+ 0x040, 0x040, 0x040, 0x0ed, 0x082, 0x083, 0x084, 0x085, 0x0a2, 0x0a3,
+ 0x0a4, 0x0a5, 0x0ed, 0x0ef, 0x056, 0x076, 0x001
+};
+
+static const uint32_t rtl8723b_rf_vals[] = {
+ 0x00010000, 0x000dffe0, 0x00000000, 0x00000000, 0x00000000, 0x00000018,
+ 0x00000000, 0x00000000, 0x00000000, 0x00084c00, 0x0000d2cc, 0x000925aa,
+ 0x00000010, 0x0000907f, 0x00000002, 0x00000002, 0x00000005, 0x0006fc00,
+ 0x000ff9f0, 0x000739d2, 0x00000000, 0x00000780, 0x00067435,
+
+ 0x0006b04e,
+
+ 0x000007D2, 0x00000000, 0x00050400, 0x0004026E, 0x0000004C, 0x00067435,
+
+ 0x0006b04e,
+
+ 0x000007d2, 0x00000000, 0x00050400, 0x0004026e, 0x00000100, 0x0000add7,
+ 0x00005c00, 0x00009dd4, 0x00005000, 0x00008dd1, 0x00004400, 0x00007dce,
+ 0x00003800, 0x00006cd1, 0x00004400, 0x00005cce, 0x00003800, 0x000048ce,
+ 0x00004400, 0x000034ce, 0x00003800, 0x00002451, 0x00004400, 0x0000144e,
+ 0x00003800, 0x00000051, 0x00004400, 0x00000000, 0x00000100, 0x00000010,
+ 0x0000add7, 0x00009dd4, 0x00008dd1, 0x00007dce, 0x00006cc1, 0x00005cce,
+ 0x000044d1, 0x000034ce, 0x00002451, 0x0000144e, 0x00000051, 0x00000000,
+ 0x00000000, 0x00020080, 0x00002000, 0x000380ef, 0x000302fe, 0x00028ce6,
+ 0x000200bc, 0x000188a5, 0x00010fbc, 0x00008f71, 0x00000900, 0x00000000,
+ 0x00000001, 0x000380ef, 0x000302fe, 0x00028ce6, 0x000200bc, 0x000188a5,
+ 0x00010fbc, 0x00008f71, 0x00000900, 0x00000000, 0x00080000, 0x00008000,
+ 0x00048d80, 0x00068000, 0x00080000, 0x00008000, 0x00048d80, 0x00068000,
+ 0x00000002, 0x00000002, 0x00000032, 0x00000032, 0x00000780
+};
+
+static const struct rtwn_rf_prog rtl8723b_rf[] = {
+ {
+ nitems(rtl8723b_rf_regs),
+ rtl8723b_rf_regs,
+ rtl8723b_rf_vals,
+ { 0 },
+ NULL
+ },
+ { 0, NULL, NULL, { 0 }, NULL }
+};
+
+#endif
diff --git a/sys/dev/rtwn/rtl8723b/r23b_reg.h b/sys/dev/rtwn/rtl8723b/r23b_reg.h
new file mode 100644
--- /dev/null
+++ b/sys/dev/rtwn/rtl8723b/r23b_reg.h
@@ -0,0 +1,63 @@
+/*
+ * Copyright (c) 2026 Ahmad Khalifa <vexeduxr@FreeBSD.org>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#ifndef R23B_REG_H
+#define R23B_REG_H
+
+#define R23B_BTCOEX_TABLE(i) (0x6c0 + (i) * 4)
+#define R23B_GNT_BT 0x764
+#define R23B_ANT_SEL 0x948
+
+/* Bits for R92C_EFUSE_TEST. */
+#define R23B_EFUSE_TEST_SEL_M 0x300
+#define R23B_EFUSE_TEST_SEL_S 8
+#define R23B_EFUSE_TEST_SEL_WIFI 0
+#define R23B_EFUSE_TEST_SEL_BT0 1
+#define R23B_EFUSE_TEST_SEL_BT1 2
+#define R23B_EFUSE_TEST_SEL_BT2 3
+#define R23B_EFUSE_TEST_PGMEN 0x800
+
+/* Bits for R92C_PWR_DATA. */
+#define R23B_PWR_DATA_RFE_CTRL_EN 0x800
+
+/* Bits for R92C_LEDCFG0. */
+#define R23B_LEDCFG0_DPDT_SEL_EN 0x800000
+
+/* Bits for R92C_LEDCFG2. */
+#define R23B_LEDCFG2_LED_SW_CTRL 0x20
+#define R23B_LEDCFG2_LED_DISABLE 0x04
+#define R23B_LEDCFG2_LED_M 0x7f
+
+/* Bits for R88E_BB_PAD_CTRL. */
+#define R23B_BB_PAD_CTRL_DPDT_SEL_DATA 0x1
+
+/* Bits for R92C_RXDMA_AGG_PG_TH. */
+#define R23B_RXDMA_AGG_PG_TH_EN 0x80000000
+#define R23B_RXDMA_AGG_PG_TH_SIZE_M 0xf
+#define R23B_RXDMA_AGG_PG_TH_SIZE_S 0
+#define R23B_RXDMA_AGG_PG_TH_TIME_M 0xff00
+#define R23B_RXDMA_AGG_PG_TH_TIME_S 8
+
+/* Bits for R92C_FWHW_TXQ_CTRL. */
+#define R23B_FWHW_TXQ_CTRL_ACK_MGNT 0x1000
+
+/* Bits for R92C_WMAC_TRXPTCL_CTL. */
+#define R23B_WMAC_TRXPTCL_CTL_HT40 0x80
+#define R23B_WMAC_TRXPTCL_CTL_VHT80 0x100
+
+/* Bits for R23B_ANT_SEL. */
+#define R23B_ANT_SEL_S0 0x000
+#define R23B_ANT_SEL_S1 0x280
+
+/*
+ * RF (6052) registers.
+ */
+#define R23B_RF_S0S1 0xb0
+
+/* Bits for R92C_RF_CHNLBW. */
+#define R23B_RF_CHNLBW_BW40 0x00400
+
+#endif
diff --git a/sys/dev/rtwn/rtl8723b/r23b_rf.c b/sys/dev/rtwn/rtl8723b/r23b_rf.c
new file mode 100644
--- /dev/null
+++ b/sys/dev/rtwn/rtl8723b/r23b_rf.c
@@ -0,0 +1,87 @@
+/*
+ * Copyright (c) 2026 Ahmad Khalifa <vexeduxr@FreeBSD.org>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#include <sys/param.h>
+#include <sys/lock.h>
+#include <sys/mutex.h>
+#include <sys/mbuf.h>
+#include <sys/kernel.h>
+#include <sys/socket.h>
+#include <sys/systm.h>
+#include <sys/malloc.h>
+#include <sys/queue.h>
+#include <sys/taskqueue.h>
+#include <sys/bus.h>
+#include <sys/endian.h>
+#include <sys/linker.h>
+
+#include <net/if.h>
+#include <net/ethernet.h>
+#include <net/if_media.h>
+
+#include <net80211/ieee80211_var.h>
+#include <net80211/ieee80211_radiotap.h>
+
+#include <dev/rtwn/if_rtwnreg.h>
+#include <dev/rtwn/if_rtwnvar.h>
+
+#include <dev/rtwn/rtl8188e/r88e_reg.h>
+
+#include <dev/rtwn/rtl8192c/r92c_reg.h>
+
+#include <dev/rtwn/rtl8723b/r23b.h>
+
+void
+r23b_rf_write(struct rtwn_softc *sc, int chain, uint8_t addr, uint32_t val)
+{
+ uint32_t reg;
+
+ rtwn_write_4(sc, R92C_LSSI_PARAM(chain),
+ SM(R88E_LSSI_PARAM_ADDR, addr) | SM(R92C_LSSI_PARAM_DATA, val));
+
+ /*
+ * The vendor driver claims that writing to 0xb6 may fail under high
+ * temperature conditions, but only attempts to retry during RF init.
+ *
+ * It is not mentioned why 0xb2 is also special.
+ */
+ switch (addr) {
+ case 0xb6:
+ rtwn_delay(sc, 1);
+
+ reg = rtwn_rf_read(sc, chain, addr);
+ rtwn_delay(sc, 1);
+
+ for (int retry = 0; (reg & ~0xff) != (val & ~0xff) &&
+ retry < 6; retry++) {
+ rtwn_write_4(sc, R92C_LSSI_PARAM(chain),
+ SM(R88E_LSSI_PARAM_ADDR, addr) |
+ SM(R92C_LSSI_PARAM_DATA, val));
+ rtwn_delay(sc, 1);
+
+ reg = rtwn_rf_read(sc, chain, addr);
+ }
+ break;
+ case 0xb2:
+ rtwn_delay(sc, 1);
+
+ reg = rtwn_rf_read(sc, chain, addr);
+ rtwn_delay(sc, 1);
+
+ for (int retry = 0; reg != val && retry < 6; retry++) {
+ rtwn_write_4(sc, R92C_LSSI_PARAM(chain),
+ SM(R88E_LSSI_PARAM_ADDR, addr) |
+ SM(R92C_LSSI_PARAM_DATA, val));
+ rtwn_delay(sc, 1);
+
+ rtwn_rf_write(sc, chain, R92C_RF_CHNLBW, 0x0fc07);
+ rtwn_delay(sc, 1);
+
+ reg = rtwn_rf_read(sc, chain, addr);
+ }
+ break;
+ }
+}
diff --git a/sys/dev/rtwn/rtl8723b/r23b_rom.c b/sys/dev/rtwn/rtl8723b/r23b_rom.c
new file mode 100644
--- /dev/null
+++ b/sys/dev/rtwn/rtl8723b/r23b_rom.c
@@ -0,0 +1,133 @@
+/*
+ * Copyright (c) 2026 Ahmad Khalifa <vexeduxr@FreeBSD.org>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#include <sys/param.h>
+#include <sys/lock.h>
+#include <sys/mutex.h>
+#include <sys/mbuf.h>
+#include <sys/kernel.h>
+#include <sys/socket.h>
+#include <sys/systm.h>
+#include <sys/malloc.h>
+#include <sys/queue.h>
+#include <sys/taskqueue.h>
+#include <sys/bus.h>
+#include <sys/endian.h>
+#include <sys/linker.h>
+
+#include <net/if.h>
+#include <net/ethernet.h>
+#include <net/if_media.h>
+
+#include <net80211/ieee80211_var.h>
+#include <net80211/ieee80211_radiotap.h>
+
+#include <dev/rtwn/if_rtwnreg.h>
+#include <dev/rtwn/if_rtwnvar.h>
+
+#include <dev/rtwn/rtl8192c/r92c_reg.h>
+#include <dev/rtwn/rtl8192c/r92c_rom_defs.h>
+
+#include <dev/rtwn/rtl8192e/r92e_var.h>
+
+#include <dev/rtwn/rtl8723b/r23b.h>
+#include <dev/rtwn/rtl8723b/r23b_reg.h>
+#include <dev/rtwn/rtl8723b/r23b_var.h>
+#include <dev/rtwn/rtl8723b/r23b_rom_image.h>
+
+#include <dev/rtwn/rtl8812a/r12a_rom_image.h>
+
+int
+r23b_efuse_preread(struct rtwn_softc *sc)
+{
+ int error;
+
+ /* Switch to the WIFI bank. */
+ error = rtwn_setbits_4(sc, R92C_EFUSE_TEST, R23B_EFUSE_TEST_SEL_M,
+ SM(R23B_EFUSE_TEST_SEL, R23B_EFUSE_TEST_SEL_WIFI));
+ if (error != 0)
+ return (error);
+
+ /* NB: Vendor driver does this on every read. */
+ error = rtwn_setbits_2(sc, R92C_EFUSE_TEST, R23B_EFUSE_TEST_PGMEN, 0);
+ return (error);
+}
+
+void
+r23b_parse_rom(struct rtwn_softc *sc, uint8_t *buf)
+{
+ struct r23b_rom *rom = (struct r23b_rom *)buf;
+ struct r23b_softc *rs = sc->sc_priv;
+
+ for (int i = 0; i < sc->ntxchains; i++) {
+ struct r23b_tx_pwr_2g *pwr_2g = &rom->tx_pwr[i].pwr_2g;
+ struct r23b_tx_pwr_diff_2g *pwr_diff_2g =
+ &rom->tx_pwr[i].pwr_diff_2g;
+ int j;
+
+ for (j = 0; j < R23B_GROUP_2G - 1; j++) {
+ rs->super.cck_tx_pwr[i][j] = RTWN_GET_ROM_VAR(
+ pwr_2g->cck[j], R23B_DEF_TX_PWR_2G);
+ rs->super.ht40_tx_pwr_2g[i][j] =
+ RTWN_GET_ROM_VAR(pwr_2g->ht40[j],
+ R23B_DEF_TX_PWR_2G);
+ }
+ rs->super.cck_tx_pwr[i][j] = RTWN_GET_ROM_VAR(pwr_2g->cck[j],
+ R23B_DEF_TX_PWR_2G);
+
+ rs->super.cck_tx_pwr_diff_2g[i][0] = 0;
+ rs->super.bw40_tx_pwr_diff_2g[i][0] = 0;
+ if (pwr_diff_2g->ht20_ofdm == 0xff) {
+ rs->super.ofdm_tx_pwr_diff_2g[i][0] =
+ R23B_DEF_TX_OFDM_DIFF;
+ rs->super.bw20_tx_pwr_diff_2g[i][0] =
+ R23B_DEF_TX_HT20_DIFF;
+ } else {
+ rs->super.ofdm_tx_pwr_diff_2g[i][0] = RTWN_SIGN4TO8(
+ MS(pwr_diff_2g->ht20_ofdm, LOW_PART));
+ rs->super.bw20_tx_pwr_diff_2g[i][0] = RTWN_SIGN4TO8(
+ MS(pwr_diff_2g->ht20_ofdm, HIGH_PART));
+ }
+
+ for (j = 1; j < R23B_MAX_TX_COUNT; j++) {
+ struct r23b_tx_pwr_diff123_2g *diff =
+ &pwr_diff_2g->diff123[j - 1];
+
+ if (diff->ofdm_cck == 0xff) {
+ rs->super.ofdm_tx_pwr_diff_2g[i][j] =
+ rs->super.cck_tx_pwr_diff_2g[i][j] =
+ R23B_DEF_TX_DIFF;
+ } else {
+ rs->super.cck_tx_pwr_diff_2g[i][j] =
+ RTWN_SIGN4TO8(MS(diff->ofdm_cck, LOW_PART));
+ rs->super.ofdm_tx_pwr_diff_2g[i][j] =
+ RTWN_SIGN4TO8(
+ MS(diff->ofdm_cck, HIGH_PART));
+ }
+
+ if (diff->ht40_ht20 == 0xff) {
+ rs->super.bw40_tx_pwr_diff_2g[i][j] =
+ rs->super.bw20_tx_pwr_diff_2g[i][j] =
+ R23B_DEF_TX_DIFF;
+ } else {
+ rs->super.bw40_tx_pwr_diff_2g[i][j] =
+ RTWN_SIGN4TO8(
+ MS(diff->ht40_ht20, HIGH_PART));
+ rs->super.bw20_tx_pwr_diff_2g[i][j] =
+ RTWN_SIGN4TO8(
+ MS(diff->ht40_ht20, LOW_PART));
+ }
+ }
+
+ rs->bt_antnum = rom->rf_bt_opt & R12A_RF_BT_OPT_ANT_NUM;
+ }
+
+ rs->super.crystalcap = RTWN_GET_ROM_VAR(rom->crystal_cap,
+ R23B_ROM_CRYSTALCAP_DEF);
+
+ sc->thermal_meter = RTWN_GET_ROM_VAR(rom->thermal_meter,
+ R23B_ROM_THERMALMETER_DEF);
+}
diff --git a/sys/dev/rtwn/rtl8723b/r23b_rom_defs.h b/sys/dev/rtwn/rtl8723b/r23b_rom_defs.h
new file mode 100644
--- /dev/null
+++ b/sys/dev/rtwn/rtl8723b/r23b_rom_defs.h
@@ -0,0 +1,17 @@
+/*
+ * Copyright (c) 2026 Ahmad Khalifa <vexeduxr@FreeBSD.org>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#ifndef R23B_ROM_DEFS_H
+#define R23B_ROM_DEFS_H
+
+#define R23B_MAX_TX_COUNT 4
+#define R23B_MAX_RF_PATH 4
+#define R23B_GROUP_2G 6
+
+#define R23B_EFUSE_MAX_LEN 512
+#define R23B_EFUSE_MAP_LEN 512
+
+#endif /* R23B_ROM_DEFS_H */
diff --git a/sys/dev/rtwn/rtl8723b/r23b_rom_image.h b/sys/dev/rtwn/rtl8723b/r23b_rom_image.h
new file mode 100644
--- /dev/null
+++ b/sys/dev/rtwn/rtl8723b/r23b_rom_image.h
@@ -0,0 +1,80 @@
+/*
+ * Copyright (c) 2026 Ahmad Khalifa <vexeduxr@FreeBSD.org>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#ifndef R23B_ROM_IMAGE_H
+#define R23B_ROM_IMAGE_H
+
+#include <dev/rtwn/rtl8723b/r23b_rom_defs.h>
+
+#define R23B_DEF_TX_PWR_2G 0x2d
+#define R23B_DEF_TX_HT20_DIFF 0x02
+#define R23B_DEF_TX_OFDM_DIFF 0x04
+#define R23B_DEF_TX_DIFF 0xfe
+
+struct r23b_tx_pwr_2g {
+ uint8_t cck[R23B_GROUP_2G];
+ uint8_t ht40[R23B_GROUP_2G - 1];
+} __packed;
+
+struct r23b_tx_pwr_diff123_2g {
+ uint8_t ht40_ht20;
+ uint8_t ofdm_cck;
+} __packed;
+
+struct r23b_tx_pwr_diff_2g {
+ uint8_t ht20_ofdm;
+ struct r23b_tx_pwr_diff123_2g diff123[R23B_MAX_TX_COUNT - 1];
+} __packed;
+
+struct r23b_tx_pwr {
+ struct r23b_tx_pwr_2g pwr_2g;
+ struct r23b_tx_pwr_diff_2g pwr_diff_2g;
+ uint8_t reserved[24];
+} __packed;
+
+struct r23b_rom {
+ uint16_t id;
+ uint8_t reserved1[14];
+ struct r23b_tx_pwr tx_pwr[R23B_MAX_RF_PATH];
+ uint8_t channel_plan;
+ uint8_t crystal_cap;
+#define R23B_ROM_CRYSTALCAP_DEF 0x20
+
+ uint8_t thermal_meter;
+#define R23B_ROM_THERMALMETER_DEF 0x18
+
+ uint8_t iqk_lck;
+ uint8_t pa_type;
+ uint8_t lna_type_2g;
+ uint8_t reserved2;
+ uint8_t lna_type_5g;
+ uint8_t reserved3;
+ uint8_t rf_board_opt;
+ uint8_t rf_feature_opt;
+ uint8_t rf_bt_opt;
+ uint8_t version;
+ uint8_t customer_id;
+ uint8_t tx_bswing_2g;
+ uint8_t reserved4;
+ uint8_t tx_pwr_calib_rate;
+ uint8_t rf_antenna_opt;
+ uint8_t rfe_opt;
+ uint8_t country_code;
+
+ struct {
+ uint8_t reserved1[52];
+ uint16_t vid;
+ uint16_t pid;
+ uint8_t reserved2[3];
+ uint8_t macaddr[IEEE80211_ADDR_LEN];
+ uint8_t reserved3[243];
+ } __packed usb;
+} __packed;
+
+_Static_assert(sizeof(struct r23b_rom) == R23B_EFUSE_MAP_LEN,
+ "R23B_EFUSE_MAP_LEN must be equal to sizeof(struct r23b_rom)!");
+
+#endif /* R23B_ROM_IMAGE_H */
diff --git a/sys/dev/rtwn/rtl8723b/r23b_rx.c b/sys/dev/rtwn/rtl8723b/r23b_rx.c
new file mode 100644
--- /dev/null
+++ b/sys/dev/rtwn/rtl8723b/r23b_rx.c
@@ -0,0 +1,64 @@
+/*
+ * Copyright (c) 2026 Ahmad Khalifa <vexeduxr@FreeBSD.org>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#include <sys/param.h>
+#include <sys/lock.h>
+#include <sys/mutex.h>
+#include <sys/mbuf.h>
+#include <sys/kernel.h>
+#include <sys/socket.h>
+#include <sys/systm.h>
+#include <sys/malloc.h>
+#include <sys/queue.h>
+#include <sys/taskqueue.h>
+#include <sys/bus.h>
+#include <sys/endian.h>
+#include <sys/linker.h>
+
+#include <net/if.h>
+#include <net/ethernet.h>
+#include <net/if_media.h>
+
+#include <net80211/ieee80211_var.h>
+#include <net80211/ieee80211_radiotap.h>
+
+#include <dev/rtwn/if_rtwnreg.h>
+#include <dev/rtwn/if_rtwnvar.h>
+
+#include <dev/rtwn/rtl8188e/r88e_rx_desc.h>
+
+#include <dev/rtwn/rtl8723b/r23b.h>
+
+int8_t
+r23b_get_rssi_cck(struct rtwn_softc *sc, void *physt)
+{
+ struct r88e_rx_phystat *phy = (struct r88e_rx_phystat *)physt;
+ int8_t lna_idx, vga_idx, rssi;
+
+ lna_idx = (phy->agc_rpt & 0xe0) >> 5;
+ vga_idx = (phy->agc_rpt & 0x1f);
+
+ rssi = -2 * vga_idx;
+ switch (lna_idx) {
+ case 6:
+ rssi -= 34;
+ break;
+ case 4:
+ rssi -= 14;
+ break;
+ case 1:
+ rssi += 6;
+ break;
+ case 0:
+ rssi += 16;
+ break;
+ default:
+ rssi = 0;
+ break;
+ }
+
+ return (rssi);
+}
diff --git a/sys/dev/rtwn/rtl8723b/r23b_var.h b/sys/dev/rtwn/rtl8723b/r23b_var.h
new file mode 100644
--- /dev/null
+++ b/sys/dev/rtwn/rtl8723b/r23b_var.h
@@ -0,0 +1,18 @@
+/*
+ * Copyright (c) 2026 Ahmad Khalifa <vexeduxr@FreeBSD.org>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#ifndef R23B_VAR_H
+#define R23B_VAR_H
+
+#include <dev/rtwn/rtl8723b/r23b_rom_defs.h>
+
+struct r23b_softc {
+ struct r92e_softc super;
+
+ uint8_t bt_antnum;
+};
+
+#endif
diff --git a/sys/dev/rtwn/rtl8723b/usb/r23bu.h b/sys/dev/rtwn/rtl8723b/usb/r23bu.h
new file mode 100644
--- /dev/null
+++ b/sys/dev/rtwn/rtl8723b/usb/r23bu.h
@@ -0,0 +1,22 @@
+/*
+ * Copyright (c) 2026 Ahmad Khalifa <vexeduxr@FreeBSD.org>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#ifndef RTL8723BU_H
+#define RTL8723BU_H
+
+#include <dev/rtwn/rtl8723b/r23b.h>
+
+/* r23bu_init.c */
+int r23bu_power_on(struct rtwn_softc *);
+void r23bu_power_off(struct rtwn_softc *);
+void r23bu_init_bb(struct rtwn_softc *);
+void r23bu_init_ampdu(struct rtwn_softc *);
+void r23bu_init_rx_agg(struct rtwn_softc *sc);
+
+/* r23bu_rom.c */
+void r23bu_parse_rom(struct rtwn_softc *, uint8_t *);
+
+#endif
diff --git a/sys/dev/rtwn/rtl8723b/usb/r23bu_attach.c b/sys/dev/rtwn/rtl8723b/usb/r23bu_attach.c
new file mode 100644
--- /dev/null
+++ b/sys/dev/rtwn/rtl8723b/usb/r23bu_attach.c
@@ -0,0 +1,197 @@
+/*
+ * Copyright (c) 2026 Ahmad Khalifa <vexeduxr@FreeBSD.org>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#include <sys/param.h>
+#include <sys/lock.h>
+#include <sys/mutex.h>
+#include <sys/mbuf.h>
+#include <sys/kernel.h>
+#include <sys/socket.h>
+#include <sys/systm.h>
+#include <sys/malloc.h>
+#include <sys/queue.h>
+#include <sys/taskqueue.h>
+#include <sys/bus.h>
+#include <sys/endian.h>
+#include <sys/linker.h>
+
+#include <net/if.h>
+#include <net/ethernet.h>
+#include <net/if_media.h>
+
+#include <net80211/ieee80211_var.h>
+#include <net80211/ieee80211_radiotap.h>
+
+#include <dev/rtwn/if_rtwnreg.h>
+#include <dev/rtwn/if_rtwnvar.h>
+#include <dev/rtwn/if_rtwn_nop.h>
+
+#include <dev/rtwn/usb/rtwn_usb_var.h>
+
+#include <dev/rtwn/rtl8188e/r88e.h>
+
+#include <dev/rtwn/rtl8192c/r92c.h>
+#include <dev/rtwn/rtl8192c/r92c_reg.h>
+
+#include <dev/rtwn/rtl8192c/usb/r92cu.h>
+
+#include <dev/rtwn/rtl8192e/r92e.h>
+#include <dev/rtwn/rtl8192e/r92e_var.h>
+
+#include <dev/rtwn/rtl8723b/r23b.h>
+#include <dev/rtwn/rtl8723b/r23b_var.h>
+#include <dev/rtwn/rtl8723b/r23b_priv.h>
+
+#include <dev/rtwn/rtl8723b/usb/r23bu.h>
+
+#include <dev/rtwn/rtl8812a/r12a_tx_desc.h>
+
+#include <dev/rtwn/rtl8812a/usb/r12au.h>
+
+#include <dev/rtwn/rtl8821a/r21a_reg.h>
+
+#include <dev/rtwn/rtl8821a/usb/r21au.h>
+
+void r23bu_attach(struct rtwn_usb_softc *);
+
+static void
+r23bu_attach_private(struct rtwn_softc *sc)
+{
+ struct r23b_softc *rs;
+
+ sc->sc_priv = rs = malloc(sizeof(struct r23b_softc),
+ M_RTWN_PRIV, M_WAITOK | M_ZERO);
+
+ rs->super.ac_usb_dma_size = 0x3;
+ rs->super.ac_usb_dma_time = 0x20;
+}
+
+static void
+r23bu_detach_private(struct rtwn_softc *sc)
+{
+ struct r23b_softc *rs = sc->sc_priv;
+
+ free(rs, M_RTWN_PRIV);
+}
+
+void
+r23bu_attach(struct rtwn_usb_softc *uc)
+{
+ struct rtwn_softc *sc = &uc->uc_sc;
+
+ /* USB part. */
+ uc->uc_align_rx = r12au_align_rx;
+ uc->tx_agg_desc_num = 0x6;
+
+ /* Common part. */
+ sc->sc_flags = RTWN_FLAG_EXT_HDR;
+
+ sc->sc_set_chan = r92e_set_chan;
+ sc->sc_fill_tx_desc = r12a_fill_tx_desc;
+ sc->sc_fill_tx_desc_raw = r12a_fill_tx_desc_raw;
+ sc->sc_fill_tx_desc_null = r12a_fill_tx_desc_null;
+ sc->sc_dump_tx_desc = r12au_dump_tx_desc;
+ sc->sc_tx_radiotap_flags = r12a_tx_radiotap_flags;
+ sc->sc_rx_radiotap_flags = r12a_rx_radiotap_flags;
+ sc->sc_get_rx_stats = r12a_get_rx_stats;
+ sc->sc_get_rssi_cck = r23b_get_rssi_cck;
+ sc->sc_get_rssi_ofdm = r88e_get_rssi_ofdm;
+ sc->sc_classify_intr = r12au_classify_intr;
+ sc->sc_handle_tx_report = r12a_ratectl_tx_complete;
+ sc->sc_handle_tx_report2 = rtwn_nop_softc_uint8_int;
+ sc->sc_handle_c2h_report = r92e_handle_c2h_report;
+ sc->sc_check_frame = rtwn_nop_int_softc_mbuf;
+ sc->sc_rf_read = r92e_rf_read;
+ sc->sc_rf_write = r23b_rf_write;
+ sc->sc_check_condition = r92c_check_condition;
+ sc->sc_efuse_postread = rtwn_nop_softc;
+ sc->sc_efuse_preread = r23b_efuse_preread;
+ sc->sc_parse_rom = r23bu_parse_rom;
+ sc->sc_set_led = r23b_set_led;
+ sc->sc_power_on = r23bu_power_on;
+ sc->sc_power_off = r23bu_power_off;
+#ifndef RTWN_WITHOUT_UCODE
+ sc->sc_fw_reset = r23b_fw_reset;
+ sc->sc_fw_download_enable = r23b_fw_download_enable;
+#endif
+ sc->sc_llt_init = r92e_llt_init;
+ sc->sc_set_page_size = r23b_set_page_size;
+ sc->sc_lc_calib = r23b_lc_calib;
+ sc->sc_iq_calib = r23b_iq_calib;
+ sc->sc_read_chipid_vendor = rtwn_nop_softc_uint32;
+ sc->sc_adj_devcaps = rtwn_nop_softc;
+ sc->sc_vap_preattach = rtwn_nop_softc_vap;
+ sc->sc_postattach = rtwn_nop_softc;
+ sc->sc_detach_private = r23bu_detach_private;
+#ifndef RTWN_WITHOUT_UCODE
+ sc->sc_set_media_status = r12a_set_media_status;
+ sc->sc_set_rsvd_page = r88e_set_rsvd_page;
+ sc->sc_set_pwrmode = r12a_set_pwrmode;
+ sc->sc_set_rssi = rtwn_nop_softc; /* XXX TODO */
+#else
+ sc->sc_set_media_status = rtwn_nop_softc_int;
+#endif
+ sc->sc_beacon_init = r12a_beacon_init;
+ sc->sc_beacon_enable = r92c_beacon_enable;
+ sc->sc_sta_beacon_enable = r12a_sta_beacon_enable;
+ sc->sc_beacon_set_rate = r12a_beacon_set_rate;
+ sc->sc_beacon_select = r21a_beacon_select;
+ sc->sc_temp_measure = r23b_temp_measure;
+ sc->sc_temp_read = r88e_temp_read;
+ sc->sc_init_tx_agg = r21au_init_tx_agg;
+ sc->sc_init_rx_agg = r23bu_init_rx_agg;
+ sc->sc_init_ampdu = r23bu_init_ampdu;
+ sc->sc_init_intr = r92cu_init_intr;
+ sc->sc_init_edca = r92c_init_edca;
+ sc->sc_init_bb = r23bu_init_bb;
+ sc->sc_init_rf = r23b_init_rf;
+ sc->sc_init_antsel = r23b_init_antsel;
+ sc->sc_post_init = r23b_post_init;
+ sc->sc_init_bcnq1_boundary = rtwn_nop_int_softc;
+ sc->sc_set_tx_power = r92e_set_tx_power;
+
+ sc->mac_prog = &rtl8723b_mac[0];
+ sc->mac_size = nitems(rtl8723b_mac);
+ sc->bb_prog = &rtl8723b_bb[0];
+ sc->bb_size = nitems(rtl8723b_bb);
+ sc->agc_prog = &rtl8723b_agc[0];
+ sc->agc_size = nitems(rtl8723b_agc);
+ sc->rf_prog = &rtl8723b_rf[0];
+
+ sc->name = "RTL8723BU";
+ sc->fwname = "rtwn-rtl8723bufw";
+ sc->fwsig = 0x530;
+
+ sc->page_count = R23B_TX_PAGE_COUNT;
+ sc->pktbuf_count = 0; /* Unused */
+ sc->ackto = 0x40;
+
+ sc->npubqpages = R23B_PUBQ_NPAGES;
+ sc->nhqpages = R23B_HPQ_NPAGES;
+ sc->nlqpages = R23B_LPQ_NPAGES;
+ sc->nnqpages = R23B_NPQ_NPAGES;
+
+ sc->page_size = R92C_TX_PAGE_SIZE;
+ sc->txdesc_len = sizeof(struct r12a_tx_desc);
+ sc->efuse_maxlen = R23B_EFUSE_MAX_LEN;
+ sc->efuse_maplen = R23B_EFUSE_MAP_LEN;
+ sc->rx_dma_size = R23B_RX_DMA_BUFFER_SIZE;
+
+ sc->macid_limit = R12A_MACID_MAX + 1;
+ sc->macid_rpt2_max_num = 2;
+ sc->cam_entry_limit = R12A_CAM_ENTRY_COUNT;
+ sc->fwsize_limit = R12A_MAX_FW_SIZE;
+ sc->temp_delta = R23B_CALIB_THRESHOLD;
+
+ sc->bcn_status_reg[0] = R92C_TDECTRL;
+ sc->bcn_status_reg[1] = R21A_DWBCN1_CTRL;
+ sc->rcr = 0;
+
+ sc->ntxchains = 1;
+ sc->nrxchains = 1;
+
+ r23bu_attach_private(sc);
+}
diff --git a/sys/dev/rtwn/rtl8723b/usb/r23bu_init.c b/sys/dev/rtwn/rtl8723b/usb/r23bu_init.c
new file mode 100644
--- /dev/null
+++ b/sys/dev/rtwn/rtl8723b/usb/r23bu_init.c
@@ -0,0 +1,364 @@
+/*
+ * SPDX-License-Identifier: BSD-2-Clause
+ *
+ * Copyright (c) 2016 Andriy Voskoboinyk <avos@FreeBSD.org>
+ * Copyright (c) 2026 Ahmad Khalifa <vexeduxr@FreeBSD.org>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/param.h>
+#include <sys/lock.h>
+#include <sys/mutex.h>
+#include <sys/mbuf.h>
+#include <sys/kernel.h>
+#include <sys/socket.h>
+#include <sys/systm.h>
+#include <sys/malloc.h>
+#include <sys/queue.h>
+#include <sys/taskqueue.h>
+#include <sys/bus.h>
+#include <sys/endian.h>
+#include <sys/linker.h>
+
+#include <net/if.h>
+#include <net/ethernet.h>
+#include <net/if_media.h>
+
+#include <net80211/ieee80211_var.h>
+#include <net80211/ieee80211_radiotap.h>
+
+#include <dev/usb/usb.h>
+#include <dev/usb/usbdi.h>
+
+#include <dev/rtwn/if_rtwnreg.h>
+#include <dev/rtwn/if_rtwnvar.h>
+
+#include <dev/rtwn/usb/rtwn_usb_var.h>
+
+#include <dev/rtwn/rtl8188e/r88e_reg.h>
+
+#include <dev/rtwn/rtl8192c/r92c_reg.h>
+
+#include <dev/rtwn/rtl8192e/r92e_var.h>
+
+#include <dev/rtwn/rtl8723b/r23b_reg.h>
+#include <dev/rtwn/rtl8723b/r23b_var.h>
+
+#include <dev/rtwn/rtl8723b/usb/r23bu.h>
+
+#include <dev/rtwn/rtl8812a/r12a_reg.h>
+
+int
+r23bu_power_on(struct rtwn_softc *sc)
+{
+#define RTWN_CHK(res) do { \
+ if (res != 0) \
+ return (EIO); \
+} while(0)
+ int ntries;
+
+ /* Clear suspend and power down bits.*/
+ RTWN_CHK(rtwn_setbits_1_shift(sc, R92C_APS_FSMCO,
+ R92C_APS_FSMCO_AFSM_HSUS | R92C_APS_FSMCO_APDM_HPDN, 0, 1));
+
+ /* Disable GPIO9 as EXT WAKEUP. */
+ RTWN_CHK(rtwn_setbits_1(sc, R92C_GPIO_INTM + 2, 0x01, 0));
+
+ /* Enable WL suspend. */
+ RTWN_CHK(rtwn_setbits_1_shift(sc, R92C_APS_FSMCO,
+ R92C_APS_FSMCO_AFSM_HSUS | R92C_APS_FSMCO_AFSM_PCIE, 0, 1));
+
+ /* Enable LDOA12 MACRO block for all interfaces. */
+ RTWN_CHK(rtwn_setbits_1(sc, R92C_LDOA15_CTRL, 0, R92C_LDOA15_CTRL_EN));
+
+ /* Disable BT_GPS_SEL pins. */
+ RTWN_CHK(rtwn_setbits_1(sc, 0x067, 0x10, 0));
+
+ /* 1 ms delay. */
+ rtwn_delay(sc, 1000);
+
+ /* Release analog Ips to digital isolation. */
+ RTWN_CHK(rtwn_setbits_1(sc, R92C_SYS_ISO_CTRL,
+ R92C_SYS_ISO_CTRL_IP2MAC, 0));
+
+ /* Disable SW LPS and WL suspend. */
+ RTWN_CHK(rtwn_setbits_1_shift(sc, R92C_APS_FSMCO,
+ R92C_APS_FSMCO_APFM_RSM |
+ R92C_APS_FSMCO_AFSM_HSUS |
+ R92C_APS_FSMCO_AFSM_PCIE, 0, 1));
+
+ /* Wait for power ready bit. */
+ for (ntries = 0; ntries < 5000; ntries++) {
+ if (rtwn_read_4(sc, R92C_APS_FSMCO) & R92C_APS_FSMCO_SUS_HOST)
+ break;
+ rtwn_delay(sc, 10);
+ }
+ if (ntries == 5000) {
+ device_printf(sc->sc_dev,
+ "timeout waiting for chip power up\n");
+ return (ETIMEDOUT);
+ }
+
+ /* Release WLON reset. */
+ RTWN_CHK(rtwn_setbits_1_shift(sc, R92C_APS_FSMCO, 0,
+ R92C_APS_FSMCO_RDY_MACON, 2));
+
+ /* Disable HWPDN. */
+ RTWN_CHK(rtwn_setbits_1_shift(sc, R92C_APS_FSMCO,
+ R92C_APS_FSMCO_APDM_HPDN, 0, 1));
+
+ /* Disable WL suspend. */
+ RTWN_CHK(rtwn_setbits_1_shift(sc, R92C_APS_FSMCO,
+ R92C_APS_FSMCO_AFSM_HSUS | R92C_APS_FSMCO_AFSM_PCIE, 0, 1));
+
+ RTWN_CHK(rtwn_setbits_1_shift(sc, R92C_APS_FSMCO, 0,
+ R92C_APS_FSMCO_APFM_ONMAC, 1));
+ for (ntries = 0; ntries < 5000; ntries++) {
+ if (!(rtwn_read_2(sc, R92C_APS_FSMCO) &
+ R92C_APS_FSMCO_APFM_ONMAC))
+ break;
+ rtwn_delay(sc, 10);
+ }
+ if (ntries == 5000)
+ return (ETIMEDOUT);
+
+ RTWN_CHK(rtwn_setbits_1(sc, R92C_AFE_MISC, 0, 0x40));
+
+ /* Enable falling edge triggering interrupt. */
+ RTWN_CHK(rtwn_setbits_1(sc, R92C_GPIO_INTM + 1, 0, 0x02));
+
+ /* Enable GPIO9 interrupt mode. */
+ RTWN_CHK(rtwn_setbits_1(sc, 0x063, 0, 0x02));
+
+ /* Enable GPIO9 input mode. */
+ RTWN_CHK(rtwn_setbits_1(sc, 0x062, 0x02, 0));
+
+ /* Enable HSISR GPIO interrupt. */
+ RTWN_CHK(rtwn_setbits_1(sc, R92C_HSIMR, 0, 0x01));
+
+ /* Enable HSISR GPIO9 interrupt. */
+ RTWN_CHK(rtwn_setbits_1(sc, R92C_HSIMR + 2, 0, 0x02));
+
+ /* GPIO9 internal pull up. */
+ RTWN_CHK(rtwn_setbits_1(sc, R92C_MULTI_FUNC_CTRL, 0, 0x08));
+ RTWN_CHK(rtwn_setbits_1_shift(sc, R92C_MULTI_FUNC_CTRL, 0, 0x4000, 1));
+
+ /* Enable MAC DMA/WMAC/SCHEDULE/SEC blocks. */
+ RTWN_CHK(rtwn_write_1(sc, R92C_CR, 0x00));
+ RTWN_CHK(rtwn_setbits_2(sc, R92C_CR, 0,
+ R92C_CR_HCI_TXDMA_EN | R92C_CR_TXDMA_EN |
+ R92C_CR_HCI_RXDMA_EN | R92C_CR_RXDMA_EN |
+ R92C_CR_PROTOCOL_EN | R92C_CR_SCHEDULE_EN |
+ ((sc->sc_hwcrypto != RTWN_CRYPTO_SW) ? R92C_CR_ENSEC : 0) |
+ R92C_CR_CALTMR_EN));
+
+ /* btcoex power on. */
+
+ RTWN_CHK(rtwn_write_1(sc, R88E_BB_PAD_CTRL + 3, 0x20));
+ RTWN_CHK(rtwn_setbits_2(sc, R92C_SYS_FUNC_EN, 0,
+ R92C_SYS_FUNC_EN_BBRSTB | R92C_SYS_FUNC_EN_BB_GLB_RST));
+ RTWN_CHK(rtwn_write_1(sc, R23B_GNT_BT + 1, 0x18));
+ RTWN_CHK(rtwn_write_1(sc, 0x76e, 0x4));
+ RTWN_CHK(rtwn_write_4(sc, R23B_ANT_SEL, R23B_ANT_SEL_S0));
+ RTWN_CHK(rtwn_write_1(sc, 0xfe08, 0x1));
+
+ RTWN_CHK(rtwn_setbits_2(sc, R92C_PWR_DATA, 0,
+ R23B_PWR_DATA_RFE_CTRL_EN));
+
+ RTWN_CHK(rtwn_setbits_4(sc, R92C_LEDCFG0, 0, R23B_LEDCFG0_DPDT_SEL_EN));
+
+ RTWN_CHK(rtwn_setbits_1(sc, R88E_BB_PAD_CTRL,
+ R23B_BB_PAD_CTRL_DPDT_SEL_DATA, 0));
+
+ return (0);
+#undef RTWN_CHK
+}
+
+void
+r23bu_power_off(struct rtwn_softc *sc)
+{
+ int error, ntries;
+
+ /* Stop Tx report timer. */
+ error = rtwn_setbits_1(sc, R88E_TX_RPT_CTRL, R88E_TX_RPT2_ENA, 0);
+ if (error == ENXIO) /* hardware gone */
+ return;
+
+ /* Stop Rx. */
+ rtwn_write_4(sc, R92C_CR, 0x0000);
+
+ /* Move card to Low Power state. */
+ /* Block all Tx queues. */
+ rtwn_write_1(sc, R92C_TXPAUSE, R92C_TX_QUEUE_ALL);
+
+ for (ntries = 0; ntries < 10; ntries++) {
+ /* Should be zero if no packet is transmitting. */
+ if (rtwn_read_4(sc, R88E_SCH_TXCMD) == 0)
+ break;
+
+ rtwn_delay(sc, 5000);
+ }
+ if (ntries == 10) {
+ device_printf(sc->sc_dev, "%s: failed to block Tx queues\n",
+ __func__);
+ return;
+ }
+
+ /* CCK and OFDM are disabled, and clock are gated. */
+ rtwn_setbits_1(sc, R92C_SYS_FUNC_EN, R92C_SYS_FUNC_EN_BBRSTB, 0);
+
+ rtwn_delay(sc, 1);
+
+ /* Reset whole BB. */
+ rtwn_setbits_1(sc, R92C_SYS_FUNC_EN, R92C_SYS_FUNC_EN_BB_GLB_RST, 0);
+
+ /* Reset MAC TRX. */
+ rtwn_write_1(sc, R92C_CR, R92C_CR_HCI_TXDMA_EN | R92C_CR_HCI_RXDMA_EN);
+
+ /* check if removed later. (?) */
+ rtwn_setbits_1_shift(sc, R92C_CR, R92C_CR_ENSEC, 0, 1);
+
+ /* Respond TxOK to scheduler */
+ rtwn_setbits_1(sc, R92C_DUAL_TSF_RST, 0, R92C_DUAL_TSF_RST_TXOK);
+
+#ifndef RTWN_WITHOUT_UCODE
+ if ((sc->sc_flags & RTWN_FW_LOADED) &&
+ (rtwn_read_1(sc, R92C_MCUFWDL) & R92C_MCUFWDL_RAM_DL_SEL))
+ rtwn_fw_reset(sc, RTWN_FW_RESET_SHUTDOWN);
+#endif
+
+ /* Reset MCU. */
+ rtwn_setbits_1_shift(sc, R92C_SYS_FUNC_EN, R92C_SYS_FUNC_EN_CPUEN,
+ 0, 1);
+ rtwn_write_1(sc, R92C_MCUFWDL, 0);
+
+ /* Move card to Disabled state. */
+ /* Turn off RF. */
+ rtwn_write_1(sc, R92C_RF_CTRL, 0);
+
+ /* Enable rising edge triggering interrupt. */
+ rtwn_setbits_1(sc, R92C_GPIO_INTM + 1, 0x02, 0);
+
+ /* Release WLON reset. */
+ rtwn_setbits_1_shift(sc, R92C_APS_FSMCO, 0,
+ R92C_APS_FSMCO_RDY_MACON, 2);
+
+ /* Turn off MAC by HW state machine */
+ rtwn_setbits_1_shift(sc, R92C_APS_FSMCO, 0, R92C_APS_FSMCO_APFM_OFF, 1);
+ for (ntries = 0; ntries < 10; ntries++) {
+ /* Wait until it will be disabled. */
+ if ((rtwn_read_2(sc, R92C_APS_FSMCO) &
+ R92C_APS_FSMCO_APFM_OFF) == 0)
+ break;
+
+ rtwn_delay(sc, 5000);
+ }
+ if (ntries == 10) {
+ device_printf(sc->sc_dev, "%s: could not turn off MAC\n",
+ __func__);
+ return;
+ }
+
+ rtwn_setbits_1(sc, R92C_AFE_MISC, 0x40, 0);
+
+ /* Analog Ips to digital isolation. */
+ rtwn_setbits_1(sc, R92C_SYS_ISO_CTRL, 0, R92C_SYS_ISO_CTRL_IP2MAC);
+
+ /* Disable LDOA12 MACRO block. */
+ rtwn_setbits_1(sc, R92C_LDOA15_CTRL, R92C_LDOA15_CTRL_EN, 0);
+
+ /* Enable WL suspend. */
+ rtwn_setbits_1_shift(sc, R92C_APS_FSMCO, R92C_APS_FSMCO_AFSM_PCIE,
+ R92C_APS_FSMCO_AFSM_HSUS, 1);
+
+ /* Enable GPIO9 as EXT WAKEUP. */
+ rtwn_setbits_1(sc, R92C_GPIO_INTM + 2, 0, 0x01);
+}
+
+void
+r23bu_init_bb(struct rtwn_softc *sc)
+{
+ /* Enable BB and RF. */
+ rtwn_setbits_2(sc, R92C_SYS_FUNC_EN, 0, R92C_SYS_FUNC_EN_BBRSTB |
+ R92C_SYS_FUNC_EN_BB_GLB_RST | R92C_SYS_FUNC_EN_DIO_RF);
+
+ /* Select antenna S0. */
+ rtwn_write_4(sc, R23B_ANT_SEL, R23B_ANT_SEL_S0);
+
+ return (r23b_init_bb_common(sc));
+}
+
+void
+r23bu_init_rx_agg(struct rtwn_softc *sc)
+{
+ struct r23b_softc *rs = sc->sc_priv;
+ uint32_t val;
+
+ rtwn_setbits_1(sc, R92C_TRXDMA_CTRL, 0, R92C_TRXDMA_CTRL_RXDMA_AGG_EN);
+
+ val = rtwn_read_4(sc, R92C_RXDMA_AGG_PG_TH);
+ val = RW(val, R23B_RXDMA_AGG_PG_TH_SIZE, rs->super.ac_usb_dma_size);
+ val = RW(val, R23B_RXDMA_AGG_PG_TH_TIME, rs->super.ac_usb_dma_time);
+ val |= R23B_RXDMA_AGG_PG_TH_EN;
+ rtwn_write_4(sc, R92C_RXDMA_AGG_PG_TH, val);
+}
+
+void
+r23bu_init_ampdu(struct rtwn_softc *sc)
+{
+ struct rtwn_usb_softc *uc = RTWN_USB_SOFTC(sc);
+ uint8_t val;
+
+ val = rtwn_read_1(sc, R12A_RXDMA_PRO);
+ val = RW(val, R12A_BURST_SZ,
+ usbd_get_speed(uc->uc_udev) == USB_SPEED_HIGH ?
+ R12A_BURST_SZ_USB2 : R12A_BURST_SZ_USB1);
+ val |= R12A_DMA_MODE | SM(R12A_BURST_CNT, 3);
+ rtwn_write_1(sc, R12A_RXDMA_PRO, val);
+
+ /* Enable single packet AMPDU. */
+ rtwn_setbits_1(sc, R12A_HT_SINGLE_AMPDU, 0,
+ R12A_HT_SINGLE_AMPDU_PKT_ENA);
+
+ rtwn_write_2(sc, R92C_MAX_AGGR_NUM, 0x0c14);
+ rtwn_write_1(sc, R12A_AMPDU_MAX_TIME, 0x5e);
+ rtwn_write_4(sc, R12A_AMPDU_MAX_LENGTH, UINT32_MAX);
+
+ /*
+ * The vendor driver says this is for
+ * "VHT packet length 11K", but this chip
+ * doesn't support VHT rates...
+ */
+ rtwn_write_1(sc, R92C_RX_PKT_LIMIT, 0x18);
+
+ rtwn_write_1(sc, R92C_PIFS, 0);
+ rtwn_write_1(sc, R92C_FWHW_TXQ_CTRL, R92C_FWHW_TXQ_CTRL_AMPDU_RTY_NEW);
+ rtwn_write_4(sc, R92C_FAST_EDCA_CTRL, 0x03086666);
+
+ rtwn_write_1(sc, R92C_USTIME_TSF, 0x50);
+ rtwn_write_1(sc, R92C_USTIME_EDCA, 0x50);
+
+ /* Do not reset MAC. */
+ rtwn_setbits_1(sc, R92C_RSV_CTRL, 0, 0x60);
+}
diff --git a/sys/dev/rtwn/rtl8723b/usb/r23bu_rom.c b/sys/dev/rtwn/rtl8723b/usb/r23bu_rom.c
new file mode 100644
--- /dev/null
+++ b/sys/dev/rtwn/rtl8723b/usb/r23bu_rom.c
@@ -0,0 +1,43 @@
+/*
+ * Copyright (c) 2026 Ahmad Khalifa <vexeduxr@FreeBSD.org>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#include <sys/param.h>
+#include <sys/lock.h>
+#include <sys/mutex.h>
+#include <sys/mbuf.h>
+#include <sys/kernel.h>
+#include <sys/socket.h>
+#include <sys/systm.h>
+#include <sys/malloc.h>
+#include <sys/queue.h>
+#include <sys/taskqueue.h>
+#include <sys/bus.h>
+#include <sys/endian.h>
+#include <sys/linker.h>
+
+#include <net/if.h>
+#include <net/ethernet.h>
+#include <net/if_media.h>
+
+#include <net80211/ieee80211_var.h>
+#include <net80211/ieee80211_radiotap.h>
+
+#include <dev/rtwn/if_rtwnreg.h>
+#include <dev/rtwn/if_rtwnvar.h>
+
+#include <dev/rtwn/rtl8723b/r23b.h>
+#include <dev/rtwn/rtl8723b/r23b_rom_image.h>
+
+#include <dev/rtwn/rtl8723b/usb/r23bu.h>
+
+void
+r23bu_parse_rom(struct rtwn_softc *sc, uint8_t *buf)
+{
+ struct r23b_rom *rom = (struct r23b_rom *)buf;
+
+ r23b_parse_rom(sc, buf);
+ IEEE80211_ADDR_COPY(sc->sc_ic.ic_macaddr, rom->usb.macaddr);
+}
diff --git a/sys/dev/rtwn/rtl8812a/r12a_tx_desc.h b/sys/dev/rtwn/rtl8812a/r12a_tx_desc.h
--- a/sys/dev/rtwn/rtl8812a/r12a_tx_desc.h
+++ b/sys/dev/rtwn/rtl8812a/r12a_tx_desc.h
@@ -115,6 +115,12 @@
#define R12A_TXDW5_RTS_PRIM_CHAN_M 0x0001e000
#define R12A_TXDW5_RTS_PRIM_CHAN_S 13
+ /*
+ * TODO: some chips (at least the 23bu)
+ * let us pass arbitrary data in the first
+ * 12 bits that is persisted through to the
+ * TX report.
+ */
uint32_t txdw6;
#define R21A_TXDW6_MBSSID_M 0x0000f000
#define R21A_TXDW6_MBSSID_S 12
diff --git a/sys/dev/rtwn/usb/rtwn_usb_attach.h b/sys/dev/rtwn/usb/rtwn_usb_attach.h
--- a/sys/dev/rtwn/usb/rtwn_usb_attach.h
+++ b/sys/dev/rtwn/usb/rtwn_usb_attach.h
@@ -21,6 +21,7 @@
void r92cu_attach(struct rtwn_usb_softc *);
void r92eu_attach(struct rtwn_usb_softc *);
void r88eu_attach(struct rtwn_usb_softc *);
+void r23bu_attach(struct rtwn_usb_softc *);
void r12au_attach(struct rtwn_usb_softc *);
void r21au_attach(struct rtwn_usb_softc *);
@@ -28,6 +29,7 @@
RTWN_CHIP_RTL8192CU,
RTWN_CHIP_RTL8192EU,
RTWN_CHIP_RTL8188EU,
+ RTWN_CHIP_RTL8723BU,
RTWN_CHIP_RTL8812AU,
RTWN_CHIP_RTL8821AU,
RTWN_CHIP_MAX_USB
@@ -132,6 +134,14 @@
RTWN_RTL8188EU_DEV(MERCUSYS, MW150US),
#undef RTWN_RTL8188EU_DEV
+ /* RTL8723BU */
+#define RTWN_RTL8723BU_DEV(v, p, i) \
+ { USB_VP(USB_VENDOR_##v, USB_PRODUCT_##v##_##p), \
+ USB_IF_CSI(UICLASS_VENDOR, UISUBCLASS_VENDOR, \
+ RTWN_USB_DEVINFO(RTWN_CHIP_RTL8723BU, i)) }
+ RTWN_RTL8723BU_DEV(REALTEK, RTL8723BU, 2),
+#undef RTWN_RTL8723BU_DEV
+
/* RTL8812AU */
#define RTWN_RTL8812AU_DEV(v,p) \
{ USB_VPI(USB_VENDOR_##v, USB_PRODUCT_##v##_##p, \
@@ -185,6 +195,7 @@
[RTWN_CHIP_RTL8192CU] = r92cu_attach,
[RTWN_CHIP_RTL8192EU] = r92eu_attach,
[RTWN_CHIP_RTL8188EU] = r88eu_attach,
+ [RTWN_CHIP_RTL8723BU] = r23bu_attach,
[RTWN_CHIP_RTL8812AU] = r12au_attach,
[RTWN_CHIP_RTL8821AU] = r21au_attach
};
diff --git a/sys/modules/rtwn/Makefile b/sys/modules/rtwn/Makefile
--- a/sys/modules/rtwn/Makefile
+++ b/sys/modules/rtwn/Makefile
@@ -27,6 +27,11 @@
r92e_rom.c r92e_rx.c r92e.h r92e_priv.h r92e_reg.h \
r92e_rom_image.h r92e_rom_defs.h
+.PATH: ${SRCTOP}/sys/dev/rtwn/rtl8723b
+SRCS += r23b_calib.c r23b_fw.c r23b_init.c r23b_led.c r23b_rf.c \
+ r23b_rom.c r23b_rx.c r23b.h r23b_priv.h r23b_reg.h \
+ r23b_var.h r23b_rom_defs.h r23b_rom_image.h r23b_fw_cmd.h
+
.PATH: ${SRCTOP}/sys/dev/rtwn/rtl8812a
SRCS += r12a_beacon.c r12a_calib.c r12a_caps.c r12a_chan.c r12a_fw.c \
r12a_init.c r12a_led.c r12a_rf.c r12a_rom.c r12a_rx.c r12a_tx.c \
diff --git a/sys/modules/rtwn_usb/Makefile b/sys/modules/rtwn_usb/Makefile
--- a/sys/modules/rtwn_usb/Makefile
+++ b/sys/modules/rtwn_usb/Makefile
@@ -19,6 +19,9 @@
.PATH: ${SRCTOP}/sys/dev/rtwn/rtl8192e/usb
SRCS += r92eu_attach.c r92eu_init.c r92eu.h r92eu_reg.h
+.PATH: ${SRCTOP}/sys/dev/rtwn/rtl8723b/usb
+SRCS += r23bu_attach.c r23bu_init.c r23bu_rom.c r23bu.h
+
.PATH: ${SRCTOP}/sys/dev/rtwn/rtl8812a/usb
SRCS += r12au_attach.c r12au_init.c r12au_rx.c r12au_tx.c \
r12au.h r12au_reg.h r12au_tx_desc.h
diff --git a/sys/modules/rtwnfw/Makefile b/sys/modules/rtwnfw/Makefile
--- a/sys/modules/rtwnfw/Makefile
+++ b/sys/modules/rtwnfw/Makefile
@@ -1,4 +1,4 @@
SUBDIR= rtwnrtl8188eu rtwnrtl8192cT rtwnrtl8192cU rtwnrtl8192eu rtwnrtl8812au \
- rtwnrtl8821au rtwnrtl8192cE rtwnrtl8192cEB rtwnrtl8188ee
+ rtwnrtl8821au rtwnrtl8192cE rtwnrtl8192cEB rtwnrtl8188ee rtwnrtl8723bu
.include <bsd.subdir.mk>
diff --git a/sys/modules/rtwnfw/rtwnrtl8723bu/Makefile b/sys/modules/rtwnfw/rtwnrtl8723bu/Makefile
new file mode 100644
--- /dev/null
+++ b/sys/modules/rtwnfw/rtwnrtl8723bu/Makefile
@@ -0,0 +1,4 @@
+KMOD= rtwn-rtl8723bufw
+IMG= rtwn-rtl8723bufw
+
+.include <bsd.kmod.mk>

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