3 files changed, 33 insertions, 3 deletions
diff --git a/code/esp32/components/eos/include/at_urc.h b/code/esp32/components/eos/include/at_urc.h
new file mode 100644
index 0000000..9a4c641
--- /dev/null
+++ b/code/esp32/components/eos/include/at_urc.h
@@ -0,0 +1,17 @@
+#include <sys/types.h>
+#include <stdint.h>
+#include <regex.h>
+
+#define AT_SIZE_NMATCH      4
+#define AT_SIZE_PATTERN     64
+
+#define AT_SIZE_URC_LIST    16
+
+#define AT_URC_OK           0
+#define AT_URC_MORE         1
+
+typedef int (*at_urc_cb_t) (char *, regmatch_t[]);
+
+int at_urc_process(char *urc);
+int at_urc_insert(char *pattern, at_urc_cb_t cb, int flags);
+int at_urc_delete(char *pattern);
+\ No newline at end of file
diff --git a/code/esp32/components/eos/include/cell.h b/code/esp32/components/eos/include/cell.h
index f3eb89d..4a2cfbc 100644
--- a/code/esp32/components/eos/include/cell.h
+++ b/code/esp32/components/eos/include/cell.h
@@ -11,7 +11,8 @@
 
 #define EOS_CELL_UART_MODE_NONE     0
 #define EOS_CELL_UART_MODE_PPP      1
-#define EOS_CELL_UART_MODE_RELAY    2
+#define EOS_CELL_UART_MODE_ATCMD    2
+#define EOS_CELL_UART_MODE_RELAY    3
 
 void eos_pcm_init(void);
 
@@ -21,7 +22,16 @@ void eos_pcm_start(void);
 void eos_pcm_stop(void);
 
 void eos_modem_init(void);
-ssize_t eos_modem_write(void *data, size_t size);
-void eos_modem_set_mode(char mode);
+
+void eos_modem_flush(void);
+size_t eos_modem_write(void *data, size_t size);
+size_t eos_modem_read(void *data, size_t size, uint32_t timeout);
+int eos_modem_readln(char *buf, size_t buf_size, uint32_t timeout);
+int eos_modem_resp(char *ok_str, char *err_str, uint32_t timeout);
+
+uint8_t eos_modem_get_mode(void);
+int eos_modem_set_mode(uint8_t mode);
+int eos_modem_take(void);
+void eos_modem_give(void);
 
 void eos_cell_init(void);
 \ No newline at end of file
diff --git a/code/esp32/components/eos/include/eos.h b/code/esp32/components/eos/include/eos.h
index c3f83bb..59f0ddb 100644
--- a/code/esp32/components/eos/include/eos.h
+++ b/code/esp32/components/eos/include/eos.h
@@ -1,7 +1,10 @@
 #define EOS_OK                      0
 #define EOS_ERR                     -1
+#define EOS_ERR_TIMEOUT             -2
+
 #define EOS_ERR_FULL                -10
 #define EOS_ERR_EMPTY               -11
+#define EOS_ERR_NOTFOUND            -12
 
 #define EOS_TASK_PRIORITY_UART      1
 #define EOS_TASK_PRIORITY_UART_RI   1