From: Lorenzo Bianconi <lorenzo@kernel.org>
To: nbd@nbd.name
Cc: linux-wireless@vger.kernel.org, lorenzo.bianconi@redhat.com,
sean.wang@mediatek.com, ryder.lee@mediatek.com,
shayne.chen@mediatek.com, devicetree@vger.kernel.org,
robh@kernel.org
Subject: [PATCH v3 7/7] mt76: mt7921: add dumping Tx power table
Date: Tue, 13 Apr 2021 11:08:41 +0200 [thread overview]
Message-ID: <f72dbecf13e0d5d8f452b88b6d55c3ebc074d128.1618304559.git.lorenzo@kernel.org> (raw)
In-Reply-To: <cover.1618304559.git.lorenzo@kernel.org>
From: Sean Wang <sean.wang@mediatek.com>
Dump the tx power table saved in offload firmware.
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
---
.../wireless/mediatek/mt76/mt76_connac_mcu.h | 1 +
.../wireless/mediatek/mt76/mt7921/debugfs.c | 79 +++++++++++++++++++
.../net/wireless/mediatek/mt76/mt7921/mcu.c | 23 ++++++
.../net/wireless/mediatek/mt76/mt7921/mcu.h | 17 ++++
.../wireless/mediatek/mt76/mt7921/mt7921.h | 31 ++++++++
5 files changed, 151 insertions(+)
diff --git a/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.h b/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.h
index 01c458e14dc7..c056eca6816a 100644
--- a/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.h
+++ b/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.h
@@ -564,6 +564,7 @@ enum {
MCU_CMD_CHIP_CONFIG = MCU_CE_PREFIX | 0xca,
MCU_CMD_FWLOG_2_HOST = MCU_CE_PREFIX | 0xc5,
MCU_CMD_GET_WTBL = MCU_CE_PREFIX | 0xcd,
+ MCU_CMD_GET_TXPWR = MCU_CE_PREFIX | 0xd0,
};
enum {
diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/debugfs.c b/drivers/net/wireless/mediatek/mt76/mt7921/debugfs.c
index b2e8d698e019..024524173115 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7921/debugfs.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7921/debugfs.c
@@ -158,6 +158,83 @@ mt7921_queues_read(struct seq_file *s, void *data)
return 0;
}
+static void
+mt7921_seq_puts_array(struct seq_file *file, const char *str,
+ s8 *val, int len)
+{
+ int i;
+
+ seq_printf(file, "%-16s:", str);
+ for (i = 0; i < len; i++)
+ if (val[i] == 127)
+ seq_printf(file, " %6s", "N.A");
+ else
+ seq_printf(file, " %6d", val[i]);
+ seq_puts(file, "\n");
+}
+
+#define mt7921_print_txpwr_entry(prefix, rate) \
+({ \
+ mt7921_seq_puts_array(s, #prefix " (user)", \
+ txpwr.data[TXPWR_USER].rate, \
+ ARRAY_SIZE(txpwr.data[TXPWR_USER].rate)); \
+ mt7921_seq_puts_array(s, #prefix " (eeprom)", \
+ txpwr.data[TXPWR_EEPROM].rate, \
+ ARRAY_SIZE(txpwr.data[TXPWR_EEPROM].rate)); \
+ mt7921_seq_puts_array(s, #prefix " (tmac)", \
+ txpwr.data[TXPWR_MAC].rate, \
+ ARRAY_SIZE(txpwr.data[TXPWR_MAC].rate)); \
+})
+
+static int
+mt7921_txpwr(struct seq_file *s, void *data)
+{
+ struct mt7921_dev *dev = dev_get_drvdata(s->private);
+ struct mt7921_txpwr txpwr;
+ int ret;
+
+ ret = mt7921_get_txpwr_info(dev, &txpwr);
+ if (ret)
+ return ret;
+
+ seq_printf(s, "Tx power table (channel %d)\n", txpwr.ch);
+ seq_printf(s, "%-16s %6s %6s %6s %6s\n",
+ " ", "1m", "2m", "5m", "11m");
+ mt7921_print_txpwr_entry(CCK, cck);
+
+ seq_printf(s, "%-16s %6s %6s %6s %6s %6s %6s %6s %6s\n",
+ " ", "6m", "9m", "12m", "18m", "24m", "36m",
+ "48m", "54m");
+ mt7921_print_txpwr_entry(OFDM, ofdm);
+
+ seq_printf(s, "%-16s %6s %6s %6s %6s %6s %6s %6s %6s\n",
+ " ", "mcs0", "mcs1", "mcs2", "mcs3", "mcs4", "mcs5",
+ "mcs6", "mcs7");
+ mt7921_print_txpwr_entry(HT20, ht20);
+
+ seq_printf(s, "%-16s %6s %6s %6s %6s %6s %6s %6s %6s %6s\n",
+ " ", "mcs0", "mcs1", "mcs2", "mcs3", "mcs4", "mcs5",
+ "mcs6", "mcs7", "mcs32");
+ mt7921_print_txpwr_entry(HT40, ht40);
+
+ seq_printf(s, "%-16s %6s %6s %6s %6s %6s %6s %6s %6s %6s %6s %6s %6s\n",
+ " ", "mcs0", "mcs1", "mcs2", "mcs3", "mcs4", "mcs5",
+ "mcs6", "mcs7", "mcs8", "mcs9", "mcs10", "mcs11");
+ mt7921_print_txpwr_entry(VHT20, vht20);
+ mt7921_print_txpwr_entry(VHT40, vht40);
+ mt7921_print_txpwr_entry(VHT80, vht80);
+ mt7921_print_txpwr_entry(VHT160, vht160);
+ mt7921_print_txpwr_entry(HE26, he26);
+ mt7921_print_txpwr_entry(HE52, he52);
+ mt7921_print_txpwr_entry(HE106, he106);
+ mt7921_print_txpwr_entry(HE242, he242);
+ mt7921_print_txpwr_entry(HE484, he484);
+ mt7921_print_txpwr_entry(HE996, he996);
+ mt7921_print_txpwr_entry(HE996x2, he996x2);
+
+ return 0;
+}
+
static int
mt7921_pm_set(void *data, u64 val)
{
@@ -237,6 +314,8 @@ int mt7921_init_debugfs(struct mt7921_dev *dev)
mt7921_queues_read);
debugfs_create_devm_seqfile(dev->mt76.dev, "acq", dir,
mt7921_queues_acq);
+ debugfs_create_devm_seqfile(dev->mt76.dev, "txpower_sku", dir,
+ mt7921_txpwr);
debugfs_create_file("tx_stats", 0400, dir, dev, &fops_tx_stats);
debugfs_create_file("fw_debug", 0600, dir, dev, &fops_fw_debug);
debugfs_create_file("runtime-pm", 0600, dir, dev, &fops_pm);
diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/mcu.c b/drivers/net/wireless/mediatek/mt76/mt7921/mcu.c
index b233b12860ef..b5cee20c5f27 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7921/mcu.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7921/mcu.c
@@ -1358,3 +1358,26 @@ int mt7921_mcu_update_arp_filter(struct ieee80211_hw *hw,
return mt76_mcu_skb_send_msg(&dev->mt76, skb, MCU_UNI_CMD_OFFLOAD,
true);
}
+
+int mt7921_get_txpwr_info(struct mt7921_dev *dev, struct mt7921_txpwr *txpwr)
+{
+ struct mt7921_txpwr_event *event;
+ struct mt7921_txpwr_req req = {
+ .dbdc_idx = 0,
+ };
+ struct sk_buff *skb;
+ int ret;
+
+ ret = mt76_mcu_send_and_get_msg(&dev->mt76, MCU_CMD_GET_TXPWR,
+ &req, sizeof(req), true, &skb);
+ if (ret)
+ return ret;
+
+ event = (struct mt7921_txpwr_event *)skb->data;
+ WARN_ON(skb->len != le16_to_cpu(event->len));
+ memcpy(txpwr, &event->txpwr, sizeof(event->txpwr));
+
+ dev_kfree_skb(skb);
+
+ return 0;
+}
diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/mcu.h b/drivers/net/wireless/mediatek/mt76/mt7921/mcu.h
index af8b42983a00..d980e92028ba 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7921/mcu.h
+++ b/drivers/net/wireless/mediatek/mt76/mt7921/mcu.h
@@ -85,6 +85,7 @@ enum {
MCU_EVENT_CH_PRIVILEGE = 0x18,
MCU_EVENT_SCHED_SCAN_DONE = 0x23,
MCU_EVENT_DBG_MSG = 0x27,
+ MCU_EVENT_TXPWR = 0xd0,
MCU_EVENT_COREDUMP = 0xf0,
};
@@ -389,4 +390,20 @@ struct mt7921_mcu_wlan_info {
__le32 wlan_idx;
struct mt7921_mcu_wlan_info_event event;
} __packed;
+
+struct mt7921_txpwr_req {
+ u8 ver;
+ u8 action;
+ __le16 len;
+ u8 dbdc_idx;
+ u8 rsv[3];
+} __packed;
+
+struct mt7921_txpwr_event {
+ u8 ver;
+ u8 action;
+ __le16 len;
+ struct mt7921_txpwr txpwr;
+} __packed;
+
#endif
diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/mt7921.h b/drivers/net/wireless/mediatek/mt76/mt7921/mt7921.h
index e3d83d3d954c..5cc01efee989 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7921/mt7921.h
+++ b/drivers/net/wireless/mediatek/mt76/mt7921/mt7921.h
@@ -172,6 +172,36 @@ struct mt7921_dev {
struct mt76_connac_coredump coredump;
};
+enum {
+ TXPWR_USER,
+ TXPWR_EEPROM,
+ TXPWR_MAC,
+ TXPWR_MAX_NUM,
+};
+
+struct mt7921_txpwr {
+ u8 ch;
+ u8 rsv[3];
+ struct {
+ u8 ch;
+ u8 cck[4];
+ u8 ofdm[8];
+ u8 ht20[8];
+ u8 ht40[9];
+ u8 vht20[12];
+ u8 vht40[12];
+ u8 vht80[12];
+ u8 vht160[12];
+ u8 he26[12];
+ u8 he52[12];
+ u8 he106[12];
+ u8 he242[12];
+ u8 he484[12];
+ u8 he996[12];
+ u8 he996x2[12];
+ } data[TXPWR_MAX_NUM];
+};
+
enum {
MT_LMAC_AC00,
MT_LMAC_AC01,
@@ -352,4 +382,5 @@ int mt7921_mcu_update_arp_filter(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
struct ieee80211_bss_conf *info);
int mt7921_wfsys_reset(struct mt7921_dev *dev);
+int mt7921_get_txpwr_info(struct mt7921_dev *dev, struct mt7921_txpwr *txpwr);
#endif
--
2.30.2
prev parent reply other threads:[~2021-04-13 9:09 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-13 9:08 [PATCH v3 0/7] introduce single-sku support for mt7663/mt7921 drivers Lorenzo Bianconi
2021-04-13 9:08 ` [PATCH v3 1/7] dt-bindings:net:wireless:mediatek,mt76: introduce power-limits node Lorenzo Bianconi
2021-04-13 16:29 ` Rob Herring
2021-04-13 9:08 ` [PATCH v3 2/7] mt76: add functions for parsing rate power limits from DT Lorenzo Bianconi
2021-04-13 9:08 ` [PATCH v3 3/7] mt76: extend DT rate power limits to support 11ax devices Lorenzo Bianconi
2021-04-13 9:08 ` [PATCH v3 4/7] mt76: mt7615: implement support for using DT rate power limits Lorenzo Bianconi
2021-04-13 9:08 ` [PATCH v3 5/7] mt76: mt7615: do not use mt7615 single-sku values for mt7663 Lorenzo Bianconi
2021-04-13 9:08 ` [PATCH v3 6/7] mt76: introduce single-sku support for mt7663/mt7921 Lorenzo Bianconi
2021-04-13 9:08 ` Lorenzo Bianconi [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=f72dbecf13e0d5d8f452b88b6d55c3ebc074d128.1618304559.git.lorenzo@kernel.org \
--to=lorenzo@kernel.org \
--cc=devicetree@vger.kernel.org \
--cc=linux-wireless@vger.kernel.org \
--cc=lorenzo.bianconi@redhat.com \
--cc=nbd@nbd.name \
--cc=robh@kernel.org \
--cc=ryder.lee@mediatek.com \
--cc=sean.wang@mediatek.com \
--cc=shayne.chen@mediatek.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).