[PATCH v2 07/12] wifi: rtlwifi: Add rtl8192du/trx.{c,h}

Bitterblue Smith
2024-03-17T18:51:53Z

These contain routines related to sending frames to the chip.

Signed-off-by: Bitterblue Smith <rtl8821cerfe2@gmail.com>
---
Patch is new in v2, split from patch 3/3 in v1.
---
.../wireless/realtek/rtlwifi/rtl8192du/trx.c | 380 ++++++++++++++++++
.../wireless/realtek/rtlwifi/rtl8192du/trx.h | 60 +++
2 files changed, 440 insertions(+)
create mode 100644 drivers/net/wireless/realtek/rtlwifi/rtl8192du/trx.c
create mode 100644 drivers/net/wireless/realtek/rtlwifi/rtl8192du/trx.h

diff --git a/drivers/net/wireless/realtek/rtlwifi/rtl8192du/trx.c b/drivers/net/wireless/realtek/rtlwifi/rtl8192du/trx.c
new file mode 100644
index 000000000000..830e6e1f2718
--- /dev/null
+++ b/drivers/net/wireless/realtek/rtlwifi/rtl8192du/trx.c
@@ -0,0 +1,380 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright(c) 2009-2012 Realtek Corporation.*/
+
+#include "../wifi.h"
+#include "../pci.h"
+#include "../base.h"
+#include "../stats.h"
+#include "../usb.h"
+#include "../rtl8192d/reg.h"
+#include "../rtl8192d/def.h"
+#include "../rtl8192d/phy_common.h"
+#include "../rtl8192d/trx_common.h"
+#include "phy.h"
+#include "trx.h"
+#include "led.h"
+
+void rtl92du_tx_cleanup(struct ieee80211_hw *hw, struct sk_buff *skb)
+{
+}
+
+int rtl92du_tx_post_hdl(struct ieee80211_hw *hw, struct urb *urb,
+ struct sk_buff *skb)
+{
+ return 0;
+}
+
+struct sk_buff *rtl92du_tx_aggregate_hdl(struct ieee80211_hw *hw,
+ struct sk_buff_head *list)
+{
+ return skb_dequeue(list);
+}
+
+static enum rtl_desc_qsel _rtl92du_hwq_to_descq(u16 queue_index)
+{
+ switch (queue_index) {
+ case RTL_TXQ_BCN:
+ return QSLT_BEACON;
+ case RTL_TXQ_MGT:
+ return QSLT_MGNT;
+ case RTL_TXQ_VO:
+ return QSLT_VO;
+ case RTL_TXQ_VI:
+ return QSLT_VI;
+ case RTL_TXQ_BK:
+ return QSLT_BK;
+ default:
+ case RTL_TXQ_BE:
+ return QSLT_BE;
+ }
+}
+
+/* For HW recovery information */
+static void _rtl92du_tx_desc_checksum(__le32 *txdesc)
+{
+ __le16 *ptr = (__le16 *)txdesc;
+ u16 checksum = 0;
+ u32 index;
+
+ /* Clear first */
+ set_tx_desc_tx_desc_checksum(txdesc, 0);
+ for (index = 0; index < 16; index++)
+ checksum = checksum ^ le16_to_cpu(*(ptr + index));
+ set_tx_desc_tx_desc_checksum(txdesc, checksum);
+}
+
+void rtl92du_tx_fill_desc(struct ieee80211_hw *hw,
+ struct ieee80211_hdr *hdr, u8 *pdesc_tx,
+ u8 *pbd_desc_tx, struct ieee80211_tx_info *info,
+ struct ieee80211_sta *sta,
+ struct sk_buff *skb,
+ u8 queue_index,
+ struct rtl_tcb_desc *tcb_desc)
+{
+ struct rtl_priv *rtlpriv = rtl_priv(hw);
+ struct rtl_ps_ctl *ppsc = rtl_psc(rtlpriv);
+ struct rtl_hal *rtlhal = rtl_hal(rtlpriv);
+ struct rtl_mac *mac = rtl_mac(rtlpriv);
+ struct rtl_sta_info *sta_entry;
+ __le16 fc = hdr->frame_control;
+ u8 agg_state = RTL_AGG_STOP;
+ u16 pktlen = skb->len;
+ u8 ampdu_density = 0;
+ u16 seq_number;
+ __le32 *txdesc;
+ u8 rate_flag;
+ u8 tid;
+
+ rtl_get_tcb_desc(hw, info, sta, skb, tcb_desc);
+
+ txdesc = (__le32 *)skb_push(skb, RTL_TX_HEADER_SIZE);
+ memset(txdesc, 0, RTL_TX_HEADER_SIZE);
+
+ set_tx_desc_pkt_size(txdesc, pktlen);
+ set_tx_desc_linip(txdesc, 0);
+ set_tx_desc_pkt_offset(txdesc, RTL_DUMMY_OFFSET);
+ set_tx_desc_offset(txdesc, RTL_TX_HEADER_SIZE);
+ /* 5G have no CCK rate */
+ if (rtlhal->current_bandtype == BAND_ON_5G)
+ if (tcb_desc->hw_rate < DESC_RATE6M)
+ tcb_desc->hw_rate = DESC_RATE6M;
+
+ set_tx_desc_tx_rate(txdesc, tcb_desc->hw_rate);
+ if (tcb_desc->use_shortgi || tcb_desc->use_shortpreamble)
+ set_tx_desc_data_shortgi(txdesc, 1);
+
+ if (rtlhal->macphymode == DUALMAC_DUALPHY &&
+ tcb_desc->hw_rate == DESC_RATEMCS7)
+ set_tx_desc_data_shortgi(txdesc, 1);
+
+ if (sta) {
+ sta_entry = (struct rtl_sta_info *)sta->drv_priv;
+ tid = ieee80211_get_tid(hdr);
+ agg_state = sta_entry->tids[tid].agg.agg_state;
+ ampdu_density = sta->deflink.ht_cap.ampdu_density;
+ }
+
+ if (agg_state == RTL_AGG_OPERATIONAL &&
+ info->flags & IEEE80211_TX_CTL_AMPDU) {
+ set_tx_desc_agg_enable(txdesc, 1);
+ set_tx_desc_max_agg_num(txdesc, 0x14);
+ set_tx_desc_ampdu_density(txdesc, ampdu_density);
+ tcb_desc->rts_enable = 1;
+ tcb_desc->rts_rate = DESC_RATE24M;
+ } else {
+ set_tx_desc_agg_break(txdesc, 1);
+ }
+ seq_number = (le16_to_cpu(hdr->seq_ctrl) & IEEE80211_SCTL_SEQ) >> 4;
+ set_tx_desc_seq(txdesc, seq_number);
+ set_tx_desc_rts_enable(txdesc,
+ ((tcb_desc->rts_enable &&
+ !tcb_desc->cts_enable) ? 1 : 0));
+ set_tx_desc_hw_rts_enable(txdesc,
+ ((tcb_desc->rts_enable ||
+ tcb_desc->cts_enable) ? 1 : 0));
+ set_tx_desc_cts2self(txdesc, ((tcb_desc->cts_enable) ? 1 : 0));
+ set_tx_desc_rts_stbc(txdesc, ((tcb_desc->rts_stbc) ? 1 : 0));
+ /* 5G have no CCK rate */
+ if (rtlhal->current_bandtype == BAND_ON_5G)
+ if (tcb_desc->rts_rate < DESC_RATE6M)
+ tcb_desc->rts_rate = DESC_RATE6M;
+ set_tx_desc_rts_rate(txdesc, tcb_desc->rts_rate);
+ set_tx_desc_rts_bw(txdesc, 0);
+ set_tx_desc_rts_sc(txdesc, tcb_desc->rts_sc);
+ set_tx_desc_rts_short(txdesc,
+ ((tcb_desc->rts_rate <= DESC_RATE54M) ?
+ (tcb_desc->rts_use_shortpreamble ? 1 : 0)
+ : (tcb_desc->rts_use_shortgi ? 1 : 0)));
+
+ rate_flag = info->control.rates[0].flags;
+ if (mac->bw_40) {
+ if (rate_flag & IEEE80211_TX_RC_DUP_DATA) {
+ set_tx_desc_data_bw(txdesc, 1);
+ set_tx_desc_tx_sub_carrier(txdesc, 3);
+ } else if (rate_flag & IEEE80211_TX_RC_40_MHZ_WIDTH) {
+ set_tx_desc_data_bw(txdesc, 1);
+ set_tx_desc_tx_sub_carrier(txdesc, mac->cur_40_prime_sc);
+ } else {
+ set_tx_desc_data_bw(txdesc, 0);
+ set_tx_desc_tx_sub_carrier(txdesc, 0);
+ }
+ } else {
+ set_tx_desc_data_bw(txdesc, 0);
+ set_tx_desc_tx_sub_carrier(txdesc, 0);
+ }
+
+ if (info->control.hw_key) {
+ struct ieee80211_key_conf *keyconf = info->control.hw_key;
+
+ switch (keyconf->cipher) {
+ case WLAN_CIPHER_SUITE_WEP40:
+ case WLAN_CIPHER_SUITE_WEP104:
+ case WLAN_CIPHER_SUITE_TKIP:
+ set_tx_desc_sec_type(txdesc, 0x1);
+ break;
+ case WLAN_CIPHER_SUITE_CCMP:
+ set_tx_desc_sec_type(txdesc, 0x3);
+ break;
+ default:
+ set_tx_desc_sec_type(txdesc, 0x0);
+ break;
+ }
+ }
+ set_tx_desc_pkt_id(txdesc, 0);
+ set_tx_desc_queue_sel(txdesc, _rtl92du_hwq_to_descq(queue_index));
+ set_tx_desc_data_rate_fb_limit(txdesc, 0x1F);
+ set_tx_desc_rts_rate_fb_limit(txdesc, 0xF);
+ set_tx_desc_disable_fb(txdesc, 0);
+ set_tx_desc_use_rate(txdesc, tcb_desc->use_driver_rate ? 1 : 0);
+ if (ieee80211_is_data_qos(fc)) {
+ if (mac->rdg_en) {
+ rtl_dbg(rtlpriv, COMP_SEND, DBG_TRACE,
+ "Enable RDG function\n");
+ set_tx_desc_rdg_enable(txdesc, 1);
+ set_tx_desc_htc(txdesc, 1);
+ }
+ set_tx_desc_qos(txdesc, 1);
+ }
+ if (rtlpriv->dm.useramask) {
+ set_tx_desc_rate_id(txdesc, tcb_desc->ratr_index);
+ set_tx_desc_macid(txdesc, tcb_desc->mac_id);
+ } else {
+ set_tx_desc_rate_id(txdesc, 0xC + tcb_desc->ratr_index);
+ set_tx_desc_macid(txdesc, tcb_desc->ratr_index);
+ }
+ if (!ieee80211_is_data_qos(fc) && ppsc->leisure_ps &&
+ ppsc->fwctrl_lps) {
+ set_tx_desc_hwseq_en(txdesc, 1);
+ set_tx_desc_pkt_id(txdesc, 8);
+ }
+ if (ieee80211_has_morefrags(fc))
+ set_tx_desc_more_frag(txdesc, 1);
+ if (is_multicast_ether_addr(ieee80211_get_DA(hdr)) ||
+ is_broadcast_ether_addr(ieee80211_get_DA(hdr)))
+ set_tx_desc_bmc(txdesc, 1);
+ set_tx_desc_own(txdesc, 1);
+ set_tx_desc_last_seg(txdesc, 1);
+ set_tx_desc_first_seg(txdesc, 1);
+ _rtl92du_tx_desc_checksum(txdesc);
+
+ rtl_dbg(rtlpriv, COMP_SEND, DBG_TRACE, "==>\n");
+}
+
+static void _rtl92du_config_out_ep(struct ieee80211_hw *hw, u8 num_out_pipe)
+{
+ struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw));
+ struct rtl_priv *rtlpriv = rtl_priv(hw);
+ struct rtl_hal *rtlhal = rtl_hal(rtlpriv);
+ u16 ep_cfg;
+
+ rtlusb->out_queue_sel = 0;
+ rtlusb->out_ep_nums = 0;
+
+ if (rtlhal->interfaceindex == 0)
+ ep_cfg = rtl_read_word(rtlpriv, REG_USB_Queue_Select_MAC0);
+ else
+ ep_cfg = rtl_read_word(rtlpriv, REG_USB_Queue_Select_MAC1);
+
+ if (ep_cfg & 0x00f) {
+ rtlusb->out_queue_sel |= TX_SELE_HQ;
+ rtlusb->out_ep_nums++;
+ }
+ if (ep_cfg & 0x0f0) {
+ rtlusb->out_queue_sel |= TX_SELE_NQ;
+ rtlusb->out_ep_nums++;
+ }
+ if (ep_cfg & 0xf00) {
+ rtlusb->out_queue_sel |= TX_SELE_LQ;
+ rtlusb->out_ep_nums++;
+ }
+
+ switch (num_out_pipe) {
+ case 3:
+ rtlusb->out_queue_sel = TX_SELE_HQ | TX_SELE_NQ | TX_SELE_LQ;
+ rtlusb->out_ep_nums = 3;
+ break;
+ case 2:
+ rtlusb->out_queue_sel = TX_SELE_HQ | TX_SELE_NQ;
+ rtlusb->out_ep_nums = 2;
+ break;
+ case 1:
+ rtlusb->out_queue_sel = TX_SELE_HQ;
+ rtlusb->out_ep_nums = 1;
+ break;
+ default:
+ break;
+ }
+}
+
+static void _rtl92du_one_out_ep_mapping(struct rtl_usb *rtlusb,
+ struct rtl_ep_map *ep_map)
+{
+ ep_map->ep_mapping[RTL_TXQ_BE] = rtlusb->out_eps[0];
+ ep_map->ep_mapping[RTL_TXQ_BK] = rtlusb->out_eps[0];
+ ep_map->ep_mapping[RTL_TXQ_VI] = rtlusb->out_eps[0];
+ ep_map->ep_mapping[RTL_TXQ_VO] = rtlusb->out_eps[0];
+ ep_map->ep_mapping[RTL_TXQ_MGT] = rtlusb->out_eps[0];
+ ep_map->ep_mapping[RTL_TXQ_BCN] = rtlusb->out_eps[0];
+ ep_map->ep_mapping[RTL_TXQ_HI] = rtlusb->out_eps[0];
+}
+
+static void _rtl92du_two_out_ep_mapping(struct rtl_usb *rtlusb,
+ struct rtl_ep_map *ep_map)
+{
+ ep_map->ep_mapping[RTL_TXQ_BE] = rtlusb->out_eps[1];
+ ep_map->ep_mapping[RTL_TXQ_BK] = rtlusb->out_eps[1];
+ ep_map->ep_mapping[RTL_TXQ_VI] = rtlusb->out_eps[0];
+ ep_map->ep_mapping[RTL_TXQ_VO] = rtlusb->out_eps[0];
+ ep_map->ep_mapping[RTL_TXQ_MGT] = rtlusb->out_eps[0];
+ ep_map->ep_mapping[RTL_TXQ_BCN] = rtlusb->out_eps[0];
+ ep_map->ep_mapping[RTL_TXQ_HI] = rtlusb->out_eps[0];
+}
+
+static void _rtl92du_three_out_ep_mapping(struct rtl_usb *rtlusb,
+ struct rtl_ep_map *ep_map)
+{
+ ep_map->ep_mapping[RTL_TXQ_BE] = rtlusb->out_eps[2];
+ ep_map->ep_mapping[RTL_TXQ_BK] = rtlusb->out_eps[2];
+ ep_map->ep_mapping[RTL_TXQ_VI] = rtlusb->out_eps[1];
+ ep_map->ep_mapping[RTL_TXQ_VO] = rtlusb->out_eps[0];
+ ep_map->ep_mapping[RTL_TXQ_MGT] = rtlusb->out_eps[0];
+ ep_map->ep_mapping[RTL_TXQ_BCN] = rtlusb->out_eps[0];
+ ep_map->ep_mapping[RTL_TXQ_HI] = rtlusb->out_eps[0];
+}
+
+static int _rtl92du_out_ep_mapping(struct ieee80211_hw *hw)
+{
+ struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw));
+ struct rtl_ep_map *ep_map = &rtlusb->ep_map;
+ int err = 0;
+
+ switch (rtlusb->out_ep_nums) {
+ case 1:
+ _rtl92du_one_out_ep_mapping(rtlusb, ep_map);
+ break;
+ case 2:
+ _rtl92du_two_out_ep_mapping(rtlusb, ep_map);
+ break;
+ case 3:
+ _rtl92du_three_out_ep_mapping(rtlusb, ep_map);
+ break;
+ default:
+ err = -EINVAL;
+ break;
+ }
+
+ return err;
+}
+
+int rtl92du_endpoint_mapping(struct ieee80211_hw *hw)
+{
+ struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw));
+ int error = -EINVAL;
+
+ _rtl92du_config_out_ep(hw, rtlusb->out_ep_nums);
+
+ /* Normal chip with one IN and one OUT doesn't have interrupt IN EP. */
+ if (rtlusb->out_ep_nums == 1 && rtlusb->in_ep_nums != 1)
+ goto err_out;
+
+ error = _rtl92du_out_ep_mapping(hw);
+ if (error)
+ goto err_out;
+err_out:
+ return error;
+}
+
+u16 rtl92du_mq_to_hwq(__le16 fc, u16 mac80211_queue_index)
+{
+ u16 hw_queue_index;
+
+ if (unlikely(ieee80211_is_beacon(fc))) {
+ hw_queue_index = RTL_TXQ_BCN;
+ goto out;
+ }
+ if (ieee80211_is_mgmt(fc)) {
+ hw_queue_index = RTL_TXQ_MGT;
+ goto out;
+ }
+ switch (mac80211_queue_index) {
+ case 0:
+ hw_queue_index = RTL_TXQ_VO;
+ break;
+ case 1:
+ hw_queue_index = RTL_TXQ_VI;
+ break;
+ case 2:
+ hw_queue_index = RTL_TXQ_BE;
+ break;
+ case 3:
+ hw_queue_index = RTL_TXQ_BK;
+ break;
+ default:
+ hw_queue_index = RTL_TXQ_BE;
+ WARN_ONCE(true, "rtl8192du: QSLT_BE queue, skb_queue:%d\n",
+ mac80211_queue_index);
+ break;
+ }
+out:
+ return hw_queue_index;
+}
diff --git a/drivers/net/wireless/realtek/rtlwifi/rtl8192du/trx.h b/drivers/net/wireless/realtek/rtlwifi/rtl8192du/trx.h
new file mode 100644
index 000000000000..ace83f1b420d
--- /dev/null
+++ b/drivers/net/wireless/realtek/rtlwifi/rtl8192du/trx.h
@@ -0,0 +1,60 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright(c) 2009-2012 Realtek Corporation.*/
+
+#ifndef __RTL92DE_TRX_H__
+#define __RTL92DE_TRX_H__
+
+#define TX_SELE_HQ BIT(0) /* High Queue */
+#define TX_SELE_LQ BIT(1) /* Low Queue */
+#define TX_SELE_NQ BIT(2) /* Normal Queue */
+
+#define TX_TOTAL_PAGE_NUMBER_92DU 0xF8
+#define TEST_PAGE_NUM_PUBQ_92DU 0x89
+#define TX_TOTAL_PAGE_NUMBER_92D_DUAL_MAC 0x7A
+#define NORMAL_PAGE_NUM_PUBQ_92D_DUAL_MAC 0x5A
+#define NORMAL_PAGE_NUM_HPQ_92D_DUAL_MAC 0x10
+#define NORMAL_PAGE_NUM_LPQ_92D_DUAL_MAC 0x10
+#define NORMAL_PAGE_NUM_NORMALQ_92D_DUAL_MAC 0
+
+#define WMM_NORMAL_TX_TOTAL_PAGE_NUMBER 0xF5
+
+#define WMM_NORMAL_PAGE_NUM_PUBQ_92D 0x65
+#define WMM_NORMAL_PAGE_NUM_HPQ_92D 0x30
+#define WMM_NORMAL_PAGE_NUM_LPQ_92D 0x30
+#define WMM_NORMAL_PAGE_NUM_NPQ_92D 0x30
+
+#define WMM_NORMAL_PAGE_NUM_PUBQ_92D_DUAL_MAC 0x32
+#define WMM_NORMAL_PAGE_NUM_HPQ_92D_DUAL_MAC 0x18
+#define WMM_NORMAL_PAGE_NUM_LPQ_92D_DUAL_MAC 0x18
+#define WMM_NORMAL_PAGE_NUM_NPQ_92D_DUAL_MAC 0x18
+
+static inline void set_tx_desc_bmc(__le32 *__txdesc, u32 __value)
+{
+ le32p_replace_bits(__txdesc, __value, BIT(24));
+}
+
+static inline void set_tx_desc_agg_break(__le32 *__txdesc, u32 __value)
+{
+ le32p_replace_bits((__txdesc + 1), __value, BIT(6));
+}
+
+static inline void set_tx_desc_tx_desc_checksum(__le32 *__txdesc, u32 __value)
+{
+ le32p_replace_bits((__txdesc + 7), __value, GENMASK(15, 0));
+}
+
+void rtl92du_tx_fill_desc(struct ieee80211_hw *hw,
+ struct ieee80211_hdr *hdr, u8 *pdesc,
+ u8 *pbd_desc_tx, struct ieee80211_tx_info *info,
+ struct ieee80211_sta *sta,
+ struct sk_buff *skb, u8 hw_queue,
+ struct rtl_tcb_desc *ptcb_desc);
+int rtl92du_endpoint_mapping(struct ieee80211_hw *hw);
+u16 rtl92du_mq_to_hwq(__le16 fc, u16 mac80211_queue_index);
+struct sk_buff *rtl92du_tx_aggregate_hdl(struct ieee80211_hw *hw,
+ struct sk_buff_head *list);
+void rtl92du_tx_cleanup(struct ieee80211_hw *hw, struct sk_buff *skb);
+int rtl92du_tx_post_hdl(struct ieee80211_hw *hw, struct urb *urb,
+ struct sk_buff *skb);
+
+#endif
--
2.43.2