si5351_get_instance, first sinfo command

Core/Inc/commands.h

@@ -23,6 +23,7 @@ extern RTC_HandleTypeDef hrtc;
 int do_help(char *args);
 int do_devid(char *args);
 int do_info(char *args);
+int do_sinfo(char *args);
 int do_test(/*command_inst_t inst,*/ char *args);
 int do_time(char *args);
 

Core/Inc/stm32_si5351.h

@@ -155,6 +155,8 @@ char * si5351_read_register_debug(si5351_inst_t inst, char *buf, size_t bufsize,
 int si5351_write_data(si5351_inst_t inst, void * data);
 int si5351_read_data(si5351_inst_t inst, void * data);
 
+int si5351_get_instance(si5351_inst_t *inst);
+
 #ifdef __cplusplus
 } /* extern "C" */
 #endif

Core/Src/commands.c

@@ -16,6 +16,7 @@
 #include <string.h> //strchr
 #include <stdlib.h> //bsearch
 #include "helper.h" //ltrim
+#include "stm32_si5351.h"
 
 #include "commands.h"
 
@@ -55,7 +56,8 @@ static const cmd_table_t cmd_table[] = {
 	{"help",     1, CMD_NO_FLAG, do_help },
 	{"hidden",   2, CMD_HIDDEN,  do_test },
 	{"info",     1, CMD_NO_FLAG, do_info },
-	{"secret",   1, CMD_SECRET,  do_test },
+	{"sinfo",   1, CMD_SECRET,  do_sinfo },
+
 	{"time",     1, CMD_NO_FLAG, do_time },
 };
 
@@ -156,6 +158,20 @@ int do_info(char *args) {
 	return 0;
 }
 
+int do_sinfo(char *args) {
+	int rv = 0;
+	(void)args;
+	si5351_inst_t inst = NULL;
+	rv = si5351_get_instance(&inst);
+	printf("%d Si5351 instance%s found.\n", rv, (rv==1)?"":"s");
+	while (rv > 0) {
+		printf("Si5351 Handle: 0x%08lx\n", (uint32_t)inst);
+
+		rv = si5351_get_instance(&inst);
+	}
+	return rv;
+}
+
 int do_time(char *args) {
 
 	HAL_StatusTypeDef status;

Core/Src/stm32_si5351.c

@@ -112,7 +112,7 @@ typedef struct {
 
 /* Private variables ---------------------------------------------------------*/
 si5351_HandleTypeDef * first_handle = NULL;	/* pointer to the first instance  */
-int si5351_errno = 0;	/* error_number for functions whith return == NULL	  */
+int si5351_errno = 0;	/* error_number for functions with return == NULL	  */
 
 /* Private function prototypes -----------------------------------------------*/
 #ifdef DEBUG
@@ -932,3 +932,31 @@ char * si5351_read_register_debug(si5351_inst_t inst, char *buf, size_t bufsize,
 	return buf;
 }
 #endif //DEBUG
+
+/* some additional functions */
+/**	@brief Function to get the handle of a si5351 device instance
+ * 	@param si5351_instance	Given si5351 device handle or NULL for the first handle.
+ *	@return	 si5351_inst_t handle
+ *	@retval	NULL when not found
+ */
+int si5351_get_instance(si5351_inst_t *inst) {
+
+	si5351_inst_t tinst;
+	int rv = 0;
+
+	if (!inst)
+		return -EINVAL;
+
+	if (!(*inst))
+		*inst =  first_handle;
+	else
+		*inst = (*inst)->next;
+
+	tinst = *inst;
+	while (tinst) {
+		rv++;
+		tinst = tinst->next;
+	}
+	return rv;
+}
+