V124 1.修正功率配置过程，避免升功率或降功率时配置瞬间可能超出目标功率值的问题；2.修正上一版本配置功率时按下确认键，导致瞬间功率下降问题；3.调整LCD配置功率上限为衰减器最大上限；4.修正RS485通讯问题；

atsc_app/task/console_ctrl.c

@@ -4,6 +4,8 @@
  * Usage from a shell:
  *   echo "freq 473"   > /tmp/atsc_ctrl
  *   echo "rxfreq 473" > /tmp/atsc_ctrl
+ *   echo "power up 10 100"   > /tmp/atsc_ctrl
+ *   echo "power down 10 100" > /tmp/atsc_ctrl
  *   echo "status"     > /tmp/atsc_ctrl
  */
 #include <stdio.h>
@@ -24,6 +26,10 @@
 #include "../inc/console_ctrl.h"
 
 #define ATSC_CTRL_FIFO "/tmp/atsc_ctrl"
+#define POWER_TEST_DEFAULT_STEPS       1U
+#define POWER_TEST_DEFAULT_INTERVAL_MS 100U
+#define POWER_TEST_MAX_STEPS           10000U
+#define POWER_TEST_MAX_INTERVAL_MS     60000U
 
 static int mhz_to_chn(uint32 mhz)
 {
@@ -73,11 +79,79 @@ static void save_rx_freq(uint8 chn)
 #endif
 }
 
+/*
+ * Simulate repeated LCD power-key operations.  One step is 0.05 dB and each
+ * step uses the normal power-setting path, including the HMC472/ADRV9009
+ * crossover ordering and the physical attenuation-headroom limit.
+ */
+static void test_power_key(uint8 power_up, uint32 steps, uint32 interval_ms)
+{
+    uint32 i;
+    uint16 old_power;
+    uint16 max_power;
+    S_RF_PARA power_para;
+
+    if(steps == 0)
+    {
+        printf("[atsc_ctrl] power test steps must be greater than zero\n");
+        return;
+    }
+    if((steps > POWER_TEST_MAX_STEPS) ||
+       (interval_ms > POWER_TEST_MAX_INTERVAL_MS))
+    {
+        printf("[atsc_ctrl] power test limit: steps<=%u interval_ms<=%u\n",
+               POWER_TEST_MAX_STEPS, POWER_TEST_MAX_INTERVAL_MS);
+        return;
+    }
+
+    for(i = 0; i < steps; i++)
+    {
+        old_power = atsc_para.rf_para.power;
+        memcpy(&power_para, &atsc_para.rf_para, sizeof(power_para));
+
+        if(power_up)
+        {
+            max_power = atsc_para.wj_para.p_c ? RF_POWER_P_C_ON : RF_POWER_MAX;
+            if(atsc_para.ad3_para.max_power < max_power)
+                max_power = atsc_para.ad3_para.max_power;
+
+            if((old_power >= max_power) ||
+               (atsc_para.rf_para.db >= RF_POWER_DB_MAX))
+                break;
+
+            power_para.power++;
+            power_para.db++;
+        }
+        else
+        {
+            if((old_power == 0) || (atsc_para.rf_para.db == 0))
+                break;
+
+            power_para.power--;
+            power_para.db--;
+        }
+
+        apply_rf_power_para(&power_para);
+        if(atsc_para.rf_para.power == old_power)
+            break;
+
+        if(interval_ms && ((i + 1) < steps))
+            usleep(interval_ms * 1000);
+    }
+
+    printf("[atsc_ctrl] power %s requested=%u completed=%u interval_ms=%u power=%u db=%u display_db_x100=%d\n",
+           power_up ? "up" : "down", steps, i, interval_ms,
+           atsc_para.rf_para.power, atsc_para.rf_para.db,
+           ((int32)atsc_para.rf_para.power - RF_POWER_ZERO) * 5);
+}
+
 static void exec_cmd(char *line)
 {
     char a0[32] = {0};
     char a1[32] = {0};
-    int n = sscanf(line, "%31s %31s", a0, a1);
+    char a2[32] = {0};
+    char a3[32] = {0};
+    int n = sscanf(line, "%31s %31s %31s %31s", a0, a1, a2, a3);
 
     if(n < 1)
         return;
@@ -110,6 +184,20 @@ static void exec_cmd(char *line)
         save_rx_freq((uint8)chn);
         printf("[atsc_ctrl] rxfreq %u MHz -> chn %d done\n", mhz, chn);
     }
+    else if((strcmp(a0, "power") == 0) && (n >= 2))
+    {
+        uint32 steps = (n >= 3) ? (uint32)strtoul(a2, NULL, 0)
+                                : POWER_TEST_DEFAULT_STEPS;
+        uint32 interval_ms = (n >= 4) ? (uint32)strtoul(a3, NULL, 0)
+                                      : POWER_TEST_DEFAULT_INTERVAL_MS;
+
+        if(strcmp(a1, "up") == 0)
+            test_power_key(1, steps, interval_ms);
+        else if(strcmp(a1, "down") == 0)
+            test_power_key(0, steps, interval_ms);
+        else
+            printf("[atsc_ctrl] usage: power <up|down> [steps] [interval_ms]\n");
+    }
     else if(strcmp(a0, "status") == 0)
     {
         printf("[atsc_ctrl] tx=%u MHz(chn=%u) rx=%u MHz(chn=%u) rf=%u power=%u db=%u\n",
@@ -123,7 +211,7 @@ static void exec_cmd(char *line)
     }
     else
     {
-        printf("[atsc_ctrl] usage: freq <MHz> | rxfreq <MHz> | status\n");
+        printf("[atsc_ctrl] usage: freq <MHz> | rxfreq <MHz> | power <up|down> [steps] [interval_ms] | status\n");
     }
 }