1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
|
From efbb5e6fb69239791deaeec71c7b92998658fe89 Mon Sep 17 00:00:00 2001
From: Jes Sorensen <Jes.Sorensen@redhat.com>
Date: Tue, 26 Jul 2016 14:01:14 -0400
Subject: [PATCH] rtl8xxxu: Implement rtl8xxxu_fill_txdesc_v3() for 8188eu
Getting closer but still no cigar.
Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
---
drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.h | 10 ++++
.../net/wireless/realtek/rtl8xxxu/rtl8xxxu_8188e.c | 1 +
.../net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c | 62 ++++++++++++++++++++++
3 files changed, 73 insertions(+)
--- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.h
+++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.h
@@ -510,6 +510,8 @@ struct rtl8xxxu_txdesc40 {
#define TXDESC_AMPDU_DENSITY_SHIFT 20
#define TXDESC40_BT_INT BIT(23)
#define TXDESC40_GID_SHIFT 24
+#define TXDESC_ANTENNA_SELECT_A BIT(24)
+#define TXDESC_ANTENNA_SELECT_B BIT(25)
/* Word 3 */
#define TXDESC40_USE_DRIVER_RATE BIT(8)
@@ -554,6 +556,10 @@ struct rtl8xxxu_txdesc40 {
/* Word 6 */
#define TXDESC_MAX_AGG_SHIFT 11
+#define TXDESC_USB_TX_AGG_SHIT 24
+
+/* Word 7 */
+#define TXDESC_ANTENNA_SELECT_C BIT(29)
/* Word 8 */
#define TXDESC40_HW_SEQ_ENABLE BIT(15)
@@ -1485,6 +1491,10 @@ void rtl8xxxu_fill_txdesc_v2(struct ieee
struct rtl8xxxu_txdesc32 *tx_desc32, u32 rate,
u16 rate_flag, bool sgi, bool short_preamble,
bool ampdu_enable);
+void rtl8xxxu_fill_txdesc_v3(struct ieee80211_hdr *hdr,
+ struct rtl8xxxu_txdesc32 *tx_desc32, u32 rate,
+ u16 rate_flag, bool sgi, bool short_preamble,
+ bool ampdu_enable);
extern struct rtl8xxxu_fileops rtl8188eu_fops;
extern struct rtl8xxxu_fileops rtl8192cu_fops;
--- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8188e.c
+++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8188e.c
@@ -1217,6 +1217,7 @@ struct rtl8xxxu_fileops rtl8188eu_fops =
.set_tx_power = rtl8188e_set_tx_power,
.update_rate_mask = rtl8xxxu_gen2_update_rate_mask,
.report_connect = rtl8xxxu_gen2_report_connect,
+ .fill_txdesc = rtl8xxxu_fill_txdesc_v3,
.writeN_block_size = 128,
.rx_desc_size = sizeof(struct rtl8xxxu_rxdesc16),
.tx_desc_size = sizeof(struct rtl8xxxu_txdesc32),
--- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c
+++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c
@@ -4888,6 +4888,68 @@ rtl8xxxu_fill_txdesc_v2(struct ieee80211
}
}
+/*
+ * Fill in v3 (gen1) specific TX descriptor bits.
+ * This format is a hybrid between the v1 and v2 formats, only seen
+ * on 8188eu devices so far.
+ */
+void
+rtl8xxxu_fill_txdesc_v3(struct ieee80211_hdr *hdr,
+ struct rtl8xxxu_txdesc32 *tx_desc, u32 rate,
+ u16 rate_flag, bool sgi, bool short_preamble,
+ bool ampdu_enable)
+{
+ u16 seq_number;
+
+ seq_number = IEEE80211_SEQ_TO_SN(le16_to_cpu(hdr->seq_ctrl));
+
+ tx_desc->txdw5 = cpu_to_le32(rate);
+
+ /*
+ * Data/RTS rate FB limit
+ */
+ if (ieee80211_is_data(hdr->frame_control))
+ tx_desc->txdw5 |= cpu_to_le32(0x0001ff00);
+
+ tx_desc->txdw3 = cpu_to_le32((u32)seq_number << TXDESC32_SEQ_SHIFT);
+
+ if (ampdu_enable)
+ tx_desc->txdw2 |= cpu_to_le32(TXDESC40_AGG_ENABLE);
+ else
+ tx_desc->txdw2 |= cpu_to_le32(TXDESC40_AGG_BREAK);
+
+ if (ieee80211_is_mgmt(hdr->frame_control)) {
+ tx_desc->txdw5 = cpu_to_le32(rate);
+ tx_desc->txdw4 |= cpu_to_le32(TXDESC32_USE_DRIVER_RATE);
+ tx_desc->txdw5 |= cpu_to_le32(6 << TXDESC32_RETRY_LIMIT_SHIFT);
+ tx_desc->txdw5 |= cpu_to_le32(TXDESC32_RETRY_LIMIT_ENABLE);
+ }
+
+ if (ieee80211_is_data_qos(hdr->frame_control))
+ tx_desc->txdw4 |= cpu_to_le32(TXDESC32_QOS);
+
+ if (short_preamble)
+ tx_desc->txdw4 |= cpu_to_le32(TXDESC32_SHORT_PREAMBLE);
+
+ if (sgi)
+ tx_desc->txdw5 |= cpu_to_le32(TXDESC32_SHORT_GI);
+
+ if (rate_flag & IEEE80211_TX_RC_USE_RTS_CTS) {
+ /*
+ * Use RTS rate 24M - does the mac80211 tell
+ * us which to use?
+ */
+ tx_desc->txdw4 |= cpu_to_le32(DESC_RATE_24M <<
+ TXDESC32_RTS_RATE_SHIFT);
+ tx_desc->txdw4 |= cpu_to_le32(TXDESC32_RTS_CTS_ENABLE);
+ tx_desc->txdw4 |= cpu_to_le32(TXDESC32_HW_RTS_ENABLE);
+ }
+
+ tx_desc->txdw2 |= cpu_to_le32(TXDESC_ANTENNA_SELECT_A |
+ TXDESC_ANTENNA_SELECT_B);
+ tx_desc->txdw7 |= cpu_to_le32(TXDESC_ANTENNA_SELECT_C);
+}
+
static void rtl8xxxu_tx(struct ieee80211_hw *hw,
struct ieee80211_tx_control *control,
struct sk_buff *skb)
|
