From: Ping-Ke Shih <pkshih@xxxxxxxxxxx>
To know detail of SAR information, we add a debugfs entry to dump the raw
content written in ACPI, and also dump the translated data (real number in
decimal). The output looks like
Customer ID: 0x5048
WiFiEnable: 0x1
Total SAR Table Count: 3
Current SAR Table Index: (02 02 02 02)
Dump RWRD SAR RAW DATA. (Total Count: 60)
01: 0e 0c 0c 0c 0c 0e 0c 0c 0c 0c 0e 0c 0c 0c 0c 12 10 10 12 12
02: 08 03 03 03 03 08 03 03 03 03 08 03 03 03 03 12 10 10 12 12
03: 04 ff ff ff ff 04 ff ff ff ff 04 ff ff ff ff 12 10 10 12 12
Show SAR PowerLimit:
2.4G Antenna 0: [14.0] dBm
2.4G Antenna 1: [14.0] dBm
5G Antenna 0: [11.500, 11.500, 11.500, 11.500, ] dBm
5G Antenna 1: [11.500, 11.500, 11.500, 11.500, ] dBm
Dump Geo-SAR Table RAW DATA. (Total Count: 30)
geo-0: 10 04 08 01 01 0f 04 0c 01 01
geo-1: 0c 02 06 03 03 06 04 08 03 03
geo-2: 10 03 03 03 03 0f 03 03 03 03
Show Geo-SAR PowerLimit:
2G Geo Table Index: 1
5G Geo Table Index: 1
2GHz:
Max Power: [16.0] dBm
Ant-0 delta value: [1.0] dB
Ant-1 delta value: [3.0] dB
5GHz:
Max Power: [13.0] dBm
Ant-0 delta value: [2.0] dB
Ant-1 delta value: [4.0] dB
Signed-off-by: Ping-Ke Shih <pkshih@xxxxxxxxxxx>
Signed-off-by: Yan-Hsuan Chuang <yhchuang@xxxxxxxxxxx>
---
drivers/net/wireless/realtek/rtw88/debug.c | 16 ++++
drivers/net/wireless/realtek/rtw88/sar.c | 92 ++++++++++++++++++++++
drivers/net/wireless/realtek/rtw88/sar.h | 1 +
3 files changed, 109 insertions(+)
diff --git a/drivers/net/wireless/realtek/rtw88/debug.c b/drivers/net/wireless/realtek/rtw88/debug.c
index 3ec15a49ecc9..ee73b125ac0e 100644
--- a/drivers/net/wireless/realtek/rtw88/debug.c
+++ b/drivers/net/wireless/realtek/rtw88/debug.c
@@ -9,6 +9,7 @@
#include "fw.h"
#include "debug.h"
#include "phy.h"
+#include "sar.h"
#ifdef CONFIG_RTW88_DEBUGFS
@@ -696,6 +697,16 @@ static int rtw_debugfs_get_phy_info(struct seq_file *m, void *v)
return 0;
}
+static int rtw_debugfs_get_sar(struct seq_file *m, void *v)
+{
+ struct rtw_debugfs_priv *debugfs_priv = m->private;
+ struct rtw_dev *rtwdev = debugfs_priv->rtwdev;
+
+ rtw_sar_dump_via_debugfs(rtwdev, m);
+
+ return 0;
+}
+
#define rtw_debug_impl_mac(page, addr) \
static struct rtw_debugfs_priv rtw_debug_priv_mac_ ##page = { \
.cb_read = rtw_debug_get_mac_page, \
@@ -786,6 +797,10 @@ static struct rtw_debugfs_priv rtw_debug_priv_phy_info = {
.cb_read = rtw_debugfs_get_phy_info,
};
+static struct rtw_debugfs_priv rtw_debug_priv_sar = {
+ .cb_read = rtw_debugfs_get_sar,
+};
+
#define rtw_debugfs_add_core(name, mode, fopname, parent) \
do { \
rtw_debug_priv_ ##name.rtwdev = rtwdev; \
@@ -816,6 +831,7 @@ void rtw_debugfs_init(struct rtw_dev *rtwdev)
rtw_debugfs_add_rw(dump_cam);
rtw_debugfs_add_rw(rsvd_page);
rtw_debugfs_add_r(phy_info);
+ rtw_debugfs_add_r(sar);
rtw_debugfs_add_r(mac_0);
rtw_debugfs_add_r(mac_1);
rtw_debugfs_add_r(mac_2);
diff --git a/drivers/net/wireless/realtek/rtw88/sar.c b/drivers/net/wireless/realtek/rtw88/sar.c
index 2bc6da4e5fcf..62689c002e25 100644
--- a/drivers/net/wireless/realtek/rtw88/sar.c
+++ b/drivers/net/wireless/realtek/rtw88/sar.c
@@ -298,6 +298,7 @@ struct rtw_sar_read {
const struct rtw_sar_geo_map *gm, *gm_end;
int rwsi_sz;
int rwgs_sz;
+ int rwgs_geos;
};
static int rwsi_mode_hp(struct rtw_dev *rtwdev, int path)
@@ -333,6 +334,7 @@ static const struct rtw_sar_read sar_read_hp = {
.gm_end = geo_map_hp + ARRAY_SIZE(geo_map_hp),
.rwsi_sz = sizeof(struct rtw_sar_rwsi_hp),
.rwgs_sz = sizeof(struct rtw_sar_rwgs_hp),
+ .rwgs_geos = RTW_SAR_RWGS_HP_NR,
};
static int rwsi_mode_rt(struct rtw_dev *rtwdev, int path)
@@ -364,6 +366,7 @@ static const struct rtw_sar_read sar_read_rt = {
.gm_end = geo_map_rt + ARRAY_SIZE(geo_map_rt),
.rwsi_sz = sizeof(struct rtw_sar_rwsi_rt),
.rwgs_sz = sizeof(struct rtw_sar_rwgs_rt),
+ .rwgs_geos = RTW_SAR_RWGS_RT_NR,
};
static u8 *rtw_sar_get_raw_package(struct rtw_dev *rtwdev,
@@ -504,6 +507,88 @@ static bool is_valid_rwgs(struct rtw_dev *rtwdev, const struct rtw_sar_rwrd *rwr
return false;
}
+#ifdef CONFIG_RTW88_DEBUGFS
+void rtw_sar_dump_via_debugfs(struct rtw_dev *rtwdev, struct seq_file *m)
+{
+#define q3_int(q3) ((q3) >> 3)
+#define q3_fra(q3) (((q3) & 0x7) * 125)
+
+ const struct rtw_sar_rwrd *rwrd = rtwdev->sar.rwrd;
+ const union rtw_sar_rwsi *rwsi = rtwdev->sar.rwsi;
+ const union rtw_sar_rwgs *rwgs = rtwdev->sar.rwgs;
+ const struct rtw_sar_read *r = rtwdev->sar.read;
+ int q3;
+ int mode;
+ int path;
+ int chidx;
+ int gi;
+ int band;
+
+ if (!rwrd || !rwsi || !rwgs || !r) {
+ seq_puts(m, "(No SAR data)\n");
+ return;
+ }
+
+ seq_printf(m, "Customer ID: 0x%04x\n", rwrd->id);
+ seq_printf(m, "WiFiEnable: 0x%x\n", rwrd->en);
+ seq_printf(m, "Total SAR Table Count: %d\n", rwrd->count);
+ seq_printf(m, "Current SAR Table Index: (%*ph)\n", r->rwsi_sz, rwsi);
+ seq_puts(m, "\n");
+
+ seq_printf(m, "Dump RWRD SAR RAW DATA. (Total Count: %ld)\n",
+ rwrd->count * sizeof(rwrd->mode[0]));
+ for (mode = 0; mode < rwrd->count; mode++)
+ seq_printf(m, "%02x: %20ph\n", mode + 1, &rwrd->mode[mode]);
+ seq_puts(m, "\n");
+
+ seq_puts(m, "Show SAR PowerLimit:\n");
+ for (path = 0; path < 2; path++) {
+ mode = r->rwsi_mode(rtwdev, path);
+ q3 = r->rwrd_base_q3(rtwdev, mode, path, RTW_SAR_LMT_CH1_14);
+ seq_printf(m, "2.4G Antenna %d: [%d.%d] dBm\n", path,
+ q3_int(q3), q3_fra(q3));
+ }
+ seq_puts(m, "\n");
+
+ for (path = 0; path < 2; path++) {
+ mode = r->rwsi_mode(rtwdev, path);
+ seq_printf(m, "5G Antenna %d: [", path);
+ for (chidx = RTW_SAR_LMT_CH36_64; chidx <= RTW_SAR_LMT_CH149_165;
+ chidx++) {
+ q3 = r->rwrd_base_q3(rtwdev, mode, path, chidx);
+ seq_printf(m, "%d.%d, ", q3_int(q3), q3_fra(q3));
+ }
+ seq_puts(m, "] dBm\n");
+ }
+ seq_puts(m, "\n");
+
+ seq_printf(m, "Dump Geo-SAR Table RAW DATA. (Total Count: %d)\n",
+ r->rwgs_sz);
+ for (gi = 0; gi < r->rwgs_geos; gi++) {
+ seq_printf(m, "geo-%d: %*ph\n", gi, r->rwgs_sz / r->rwgs_geos,
+ (u8 *)rwgs + gi * (r->rwgs_sz / r->rwgs_geos));
+ }
+ seq_puts(m, "\n");
+
+ gi = 1; /* take index 1 as an example */
+ seq_puts(m, "Show Geo-SAR PowerLimit:\n");
+ seq_printf(m, "2G Geo Table Index: %d\n", gi);
+ seq_printf(m, "5G Geo Table Index: %d\n", gi);
+ for (band = RTW_SAR_RWGS_2G; band < RTW_SAR_RWGS_BAND_NR; band++) {
+ seq_puts(m, "\n");
+ seq_printf(m, "%dGHz:\n", band == 0 ? 2 : 5);
+ q3 = r->rwgs_max_q3(rtwdev, gi, band);
+ seq_printf(m, "Max Power: [%d.%d] dBm\n", q3_int(q3),
+ q3_fra(q3));
+ for (path = 0; path < 2; path++) {
+ q3 = r->rwgs_delta_q3(rtwdev, gi, path, band);
+ seq_printf(m, "Ant-%d delta value: [%d.%d] dB\n", path,
+ q3_int(q3), q3_fra(q3));
+ }
+ }
+}
+#endif
+
static void rtw_sar_apply_dynamic_tables(struct rtw_dev *rtwdev)
{
struct rtw_hal *hal = &rtwdev->hal;
@@ -653,6 +738,13 @@ static int rtw_sar_load_dynamic_tables(struct rtw_dev *rtwdev)
{
return -ENOENT;
}
+
+#ifdef CONFIG_RTW88_DEBUGFS
+void rtw_sar_dump_via_debugfs(struct rtw_dev *rtwdev, struct seq_file *m)
+{
+ seq_puts(m, "(No SAR data)\n");
+}
+#endif
#endif /* CONFIG_ACPI */
void rtw_sar_load_table(struct rtw_dev *rtwdev)
diff --git a/drivers/net/wireless/realtek/rtw88/sar.h b/drivers/net/wireless/realtek/rtw88/sar.h
index 154f7bce6759..1f7d877a3797 100644
--- a/drivers/net/wireless/realtek/rtw88/sar.h
+++ b/drivers/net/wireless/realtek/rtw88/sar.h
@@ -8,6 +8,7 @@
void rtw_sar_load_table(struct rtw_dev *rtwdev);
void rtw_sar_release_table(struct rtw_dev *rtwdev);
void rtw_sar_work(struct work_struct *work);
+void rtw_sar_dump_via_debugfs(struct rtw_dev *rtwdev, struct seq_file *m);
#define RTW_SAR_DELAY_TIME (10 * HZ)
--
2.17.1
