From 11e08a66012816898be0496797ae5affe47a315d Mon Sep 17 00:00:00 2001
From: Fabian Mauchle <fabian.mauchle@switch.ch>
Date: Fri, 12 May 2023 15:19:02 +0000
Subject: [PATCH] userspace/libwr: increase sfp dom presciscion and print as
dBm too
---
userspace/libwr/i2c_sfp.c | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/userspace/libwr/i2c_sfp.c b/userspace/libwr/i2c_sfp.c
index 8c9f5d21a..96b65c1c7 100644
--- a/userspace/libwr/i2c_sfp.c
+++ b/userspace/libwr/i2c_sfp.c
@@ -9,6 +9,7 @@
#include <unistd.h>
#include <errno.h>
#include <stddef.h>
+#include <math.h>
#include <libwr/pio.h>
#include <libwr/wrs-msg.h>
@@ -347,11 +348,13 @@ void shw_sfp_print_header(struct shw_sfp_header *head)
void shw_sfp_print_dom(struct shw_sfp_dom * dom)
{
+ float tx_pow = (dom->tx_pow[0]*256 + dom->tx_pow[1])/(float)10000;
+ float rx_pow = (dom->rx_pow[0]*256 + dom->rx_pow[1])/(float)10000;
printf("Temperature: %.3f C\n", (int8_t)dom->temp[0] + dom->temp[1]/(float)256);
printf("Voltage: %.3f V\n", (dom->vcc[0]*256 + dom->vcc[1])/(float)10000);
printf("Bias Current: %.3f mA\n", (dom->tx_bias[0]*256+dom->tx_bias[1])/(float)500);
- printf("TX power: %.3f mW\n", (dom->tx_pow[0]*256 + dom->tx_pow[1])/(float)10000);
- printf("RX power: %.3f mW\n", (dom->rx_pow[0]*256 + dom->rx_pow[1])/(float)10000);
+ printf("TX power: %.4f mW (%.1f dBm)\n", tx_pow, 10 * log10(tx_pow));
+ printf("RX power: %.4f mW (%.1f dBm)\n", rx_pow, 10 * log10(rx_pow));
}
void shw_sfp_header_dump(struct shw_sfp_header *head)
--
GitLab