Merge branch 'feature/tcpip_adapter_comments' into 'master'
add comments for tcpip_adapter See merge request !123
This commit is contained in:
Wu Jian Gang
commit
c2a037fcbd
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@ -15,6 +15,27 @@
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#ifndef _TCPIP_ADAPTER_H_
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#define _TCPIP_ADAPTER_H_
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/**
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* @brief TCPIP adapter library
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*
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* The aim of this adapter is to provide an abstract layer upon TCPIP stack.
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* With this layer, switch to other TCPIP stack is possible and easy in esp-idf.
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*
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* If users want to use other TCPIP stack, all those functions should be implemented
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* by using the specific APIs of that stack. The macros in CONFIG_TCPIP_LWIP should be
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* re-defined.
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*
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* tcpip_adapter_init should be called in the start of app_main for only once.
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*
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* Currently most adapter APIs are called in event_default_handlers.c.
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*
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* We recommend users only use set/get IP APIs, DHCP server/client APIs,
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* get free station list APIs in application side. Other APIs are used in esp-idf internal,
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* otherwise the state maybe wrong.
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*
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* TODO: ipv6 support will be added, use menuconfig to disable CONFIG_TCPIP_LWIP
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*/
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#include <stdint.h>
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#include "rom/queue.h"
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#include "esp_wifi_types.h"
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@ -55,7 +76,7 @@ struct station_list {
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#endif
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#define ESP_ERR_TCPIP_ADAPTER_BASE 0x5000 // base should be moved to esp_err.h
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#define ESP_ERR_TCPIP_ADAPTER_BASE 0x5000 // TODO: move base address to esp_err.h
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#define ESP_ERR_TCPIP_ADAPTER_INVALID_PARAMS ESP_ERR_TCPIP_ADAPTER_BASE + 0x00
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#define ESP_ERR_TCPIP_ADAPTER_IF_NOT_READY ESP_ERR_TCPIP_ADAPTER_BASE + 0x01
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@ -65,46 +86,125 @@ struct station_list {
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#define ESP_ERR_TCPIP_ADAPTER_NO_MEM ESP_ERR_TCPIP_ADAPTER_BASE + 0x05
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#define ESP_ERR_TCPIP_ADAPTER_DHCP_NOT_STOPPED ESP_ERR_TCPIP_ADAPTER_BASE + 0x06
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/* will add ethernet interface */
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/* TODO: add Ethernet interface */
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typedef enum {
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TCPIP_ADAPTER_IF_STA = 0, /**< ESP32 station interface */
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TCPIP_ADAPTER_IF_AP, /**< ESP32 soft-AP interface */
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TCPIP_ADAPTER_IF_MAX
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} tcpip_adapter_if_t;
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/* status of DHCP client or DHCP server */
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typedef enum {
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TCPIP_ADAPTER_DHCP_INIT = 0,
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TCPIP_ADAPTER_DHCP_STARTED,
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TCPIP_ADAPTER_DHCP_STOPPED,
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TCPIP_ADAPTER_DHCP_INIT = 0, /**< DHCP client/server in initial state */
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TCPIP_ADAPTER_DHCP_STARTED, /**< DHCP client/server already been started */
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TCPIP_ADAPTER_DHCP_STOPPED, /**< DHCP client/server already been stopped */
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TCPIP_ADAPTER_DHCP_STATUS_MAX
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} tcpip_adapter_dhcp_status_t;
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/* set the option mode for DHCP client or DHCP server */
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typedef enum{
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TCPIP_ADAPTER_OP_START = 0,
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TCPIP_ADAPTER_OP_SET,
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TCPIP_ADAPTER_OP_GET,
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TCPIP_ADAPTER_OP_SET, /**< set option mode */
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TCPIP_ADAPTER_OP_GET, /**< get option mode */
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TCPIP_ADAPTER_OP_MAX
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} tcpip_adapter_option_mode_t;
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typedef enum{
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TCPIP_ADAPTER_ROUTER_SOLICITATION_ADDRESS = 32,
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TCPIP_ADAPTER_REQUESTED_IP_ADDRESS = 50,
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TCPIP_ADAPTER_IP_ADDRESS_LEASE_TIME = 51,
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TCPIP_ADAPTER_IP_REQUEST_RETRY_TIME = 52,
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TCPIP_ADAPTER_ROUTER_SOLICITATION_ADDRESS = 32, /**< solicitation router address */
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TCPIP_ADAPTER_REQUESTED_IP_ADDRESS = 50, /**< request IP address pool */
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TCPIP_ADAPTER_IP_ADDRESS_LEASE_TIME = 51, /**< request IP address lease time */
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TCPIP_ADAPTER_IP_REQUEST_RETRY_TIME = 52, /**< request IP address retry counter */
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} tcpip_adapter_option_id_t;
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/**
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* @brief Initialize tcpip adpater
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*
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* This will initialize TCPIP stack inside.
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*/
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void tcpip_adapter_init(void);
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/**
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* @brief Start an interface with specific MAC and IP
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*
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* softAP or station interface will be initialized, connect WiFi stack with TCPIP stack.
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*
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* For softAP interface, DHCP server will be started automatically.
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*
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* @param[in] tcpip_if: the interface which we will start
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* @param[in] mac: set MAC address of this interface
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* @param[in] ip_info: set IP address of this interface
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*
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* @return ESP_OK
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* ESP_ERR_TCPIP_ADAPTER_INVALID_PARAMS
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* ESP_ERR_NO_MEM
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*/
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esp_err_t tcpip_adapter_start(tcpip_adapter_if_t tcpip_if, uint8_t *mac, tcpip_adapter_ip_info_t *ip_info);
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/**
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* @brief Stop an interface
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*
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* The interface will be cleanup in this API, if DHCP server/client are started, will be stopped.
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*
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* @param[in] tcpip_if: the interface which will be started
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*
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* @return ESP_OK
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* ESP_ERR_TCPIP_ADAPTER_INVALID_PARAMS
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* ESP_ERR_TCPIP_ADAPTER_IF_NOT_READY
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*/
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esp_err_t tcpip_adapter_stop(tcpip_adapter_if_t tcpip_if);
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/**
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* @brief Bring up an interface
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*
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* Only station interface need to be brought up, since station interface will be shut down when disconnect.
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*
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* @param[in] tcpip_if: the interface which will be up
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*
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* @return ESP_OK
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* ESP_ERR_TCPIP_ADAPTER_IF_NOT_READY
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*/
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esp_err_t tcpip_adapter_up(tcpip_adapter_if_t tcpip_if);
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/**
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* @brief Shut down an interface
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*
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* Only station interface need to be shut down, since station interface will be brought up when connect.
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*
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* @param[in] tcpip_if: the interface which will be down
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*
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* @return ESP_OK
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* ESP_ERR_TCPIP_ADAPTER_IF_NOT_READY
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*/
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esp_err_t tcpip_adapter_down(tcpip_adapter_if_t tcpip_if);
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/**
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* @brief Get interface's IP information
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*
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* There has an IP information copy in adapter library, if interface is up, get IP information from
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* interface, otherwise get from copy.
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*
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* @param[in] tcpip_if: the interface which we want to get IP information
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* @param[out] ip_info: If successful, IP information will be returned in this argument.
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*
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* @return ESP_OK
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* ESP_ERR_TCPIP_ADAPTER_INVALID_PARAMS
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*/
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esp_err_t tcpip_adapter_get_ip_info(tcpip_adapter_if_t tcpip_if, tcpip_adapter_ip_info_t *ip_info);
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/**
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* @brief Set interface's IP information
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*
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* There has an IP information copy in adapter library, if interface is up, also set interface's IP.
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* DHCP client/server should be stopped before set new IP information.
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*
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* This function is mainly used for setting static IP.
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*
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* @param[in] tcpip_if: the interface which we want to set IP information
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* @param[in] ip_info: If successful, IP information will be returned in this argument.
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*
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* @return ESP_OK
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* ESP_ERR_TCPIP_ADAPTER_INVALID_PARAMS
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*/
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esp_err_t tcpip_adapter_set_ip_info(tcpip_adapter_if_t tcpip_if, tcpip_adapter_ip_info_t *ip_info);
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#if 0
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@ -113,22 +213,171 @@ esp_err_t tcpip_adapter_get_mac(tcpip_adapter_if_t tcpip_if, uint8_t *mac);
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esp_err_t tcpip_adapter_set_mac(tcpip_adapter_if_t tcpip_if, uint8_t *mac);
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#endif
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/**
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* @brief Get DHCP server's status
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*
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* @param[in] tcpip_if: the interface which we will get status of DHCP server
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* @param[out] status: If successful, the status of DHCP server will be return in this argument.
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*
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* @return ESP_OK
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*/
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esp_err_t tcpip_adapter_dhcps_get_status(tcpip_adapter_if_t tcpip_if, tcpip_adapter_dhcp_status_t *status);
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/**
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* @brief Set or Get DHCP server's option
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*
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* @param[in] opt_op: option operate type, 1 for SET, 2 for GET.
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* @param[in] opt_id: option index, 32 for ROUTER, 50 for IP POLL, 51 for LEASE TIME, 52 for REQUEST TIME
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* @param[in] opt_val: option parameter
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* @param[in] opt_len: option length
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*
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* @return ESP_OK
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* ESP_ERR_TCPIP_ADAPTER_INVALID_PARAMS
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* ESP_ERR_TCPIP_ADAPTER_DHCP_ALREADY_STOPPED
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* ESP_ERR_TCPIP_ADAPTER_DHCP_ALREADY_STARTED
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*/
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esp_err_t tcpip_adapter_dhcps_option(tcpip_adapter_option_mode_t opt_op, tcpip_adapter_option_id_t opt_id, void *opt_val, uint32_t opt_len);
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/**
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* @brief Start DHCP server
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*
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* @note Currently DHCP server is bind to softAP interface.
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*
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* @param[in] tcpip_if: the interface which we will start DHCP server
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*
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* @return ESP_OK
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* ESP_ERR_TCPIP_ADAPTER_INVALID_PARAMS
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* ESP_ERR_TCPIP_ADAPTER_DHCP_ALREADY_STARTED
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*/
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esp_err_t tcpip_adapter_dhcps_start(tcpip_adapter_if_t tcpip_if);
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/**
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* @brief Stop DHCP server
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*
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* @note Currently DHCP server is bind to softAP interface.
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*
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* @param[in] tcpip_if: the interface which we will stop DHCP server
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*
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* @return ESP_OK
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* ESP_ERR_TCPIP_ADAPTER_INVALID_PARAMS
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* ESP_ERR_TCPIP_ADAPTER_DHCP_ALREADY_STOPED
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* ESP_ERR_TCPIP_ADAPTER_IF_NOT_READY
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*/
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esp_err_t tcpip_adapter_dhcps_stop(tcpip_adapter_if_t tcpip_if);
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/**
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* @brief Get DHCP client status
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*
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* @param[in] tcpip_if: the interface which we will get status of DHCP client
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* @param[out] status: If successful, the status of DHCP client will be return in this argument.
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*
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* @return ESP_OK
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*/
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esp_err_t tcpip_adapter_dhcpc_get_status(tcpip_adapter_if_t tcpip_if, tcpip_adapter_dhcp_status_t *status);
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/**
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* @brief Set or Get DHCP client's option
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*
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* @note This function is not implement now.
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*
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* @param[in] opt_op: option operate type, 1 for SET, 2 for GET.
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* @param[in] opt_id: option index, 32 for ROUTER, 50 for IP POLL, 51 for LEASE TIME, 52 for REQUEST TIME
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* @param[in] opt_val: option parameter
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* @param[in] opt_len: option length
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*
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* @return ESP_OK
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*/
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esp_err_t tcpip_adapter_dhcpc_option(tcpip_adapter_option_mode_t opt_op, tcpip_adapter_option_id_t opt_id, void *opt_val, uint32_t opt_len);
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/**
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* @brief Start DHCP client
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*
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* @note Currently DHCP client is bind to station interface.
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*
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* @param[in] tcpip_if: the interface which we will start DHCP client
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*
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* @return ESP_OK
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* ESP_ERR_TCPIP_ADAPTER_INVALID_PARAMS
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* ESP_ERR_TCPIP_ADAPTER_DHCP_ALREADY_STARTED
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* ESP_ERR_TCPIP_ADAPTER_DHCPC_START_FAILED
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*/
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esp_err_t tcpip_adapter_dhcpc_start(tcpip_adapter_if_t tcpip_if);
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/**
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* @brief Stop DHCP client
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*
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* @note Currently DHCP client is bind to station interface.
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*
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* @param[in] tcpip_if: the interface which we will stop DHCP client
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*
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* @return ESP_OK
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* ESP_ERR_TCPIP_ADAPTER_INVALID_PARAMS
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* ESP_ERR_TCPIP_ADAPTER_DHCP_ALREADY_STOPED
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* ESP_ERR_TCPIP_ADAPTER_IF_NOT_READY
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*/
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esp_err_t tcpip_adapter_dhcpc_stop(tcpip_adapter_if_t tcpip_if);
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/**
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* @brief Get data from station interface
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*
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* This function should be installed by esp_wifi_reg_rxcb, so WiFi packets will be forward to TCPIP stack.
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*
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* @param[in] void *buffer: the received data point
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* @param[in] uint16_t len: the received data length
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* @param[in] void *eb: parameter
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*
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* @return ESP_OK
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*/
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esp_err_t tcpip_adapter_sta_input(void *buffer, uint16_t len, void *eb);
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/**
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* @brief Get data from softAP interface
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*
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* This function should be installed by esp_wifi_reg_rxcb, so WiFi packets will be forward to TCPIP stack.
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*
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* @param[in] void *buffer: the received data point
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* @param[in] uint16_t len: the received data length
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* @param[in] void *eb: parameter
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*
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* @return ESP_OK
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*/
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esp_err_t tcpip_adapter_ap_input(void *buffer, uint16_t len, void *eb);
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/**
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* @brief Get WiFi interface index
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*
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* Get WiFi interface from TCPIP interface struct pointer.
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*
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* @param[in] void *dev: adapter interface
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*
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* @return WIFI_IF_STA
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* WIFI_IF_AP
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* WIFI_IF_MAX
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*/
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wifi_interface_t tcpip_adapter_get_wifi_if(void *dev);
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/**
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* @brief Get the station information list
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*
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* @note This function should be called in AP mode and dhcp server started, and the list should
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* be by using tcpip_adapter_free_sta_list.
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*
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* @param[in] sta_info: station information
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* @param[out] sta_list: station information list
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*
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* @return ESP_OK
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* ESP_ERR_TCPIP_ADAPTER_NO_MEM
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* ESP_ERR_TCPIP_ADAPTER_INVALID_PARAMS
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*/
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esp_err_t tcpip_adapter_get_sta_list(struct station_info *sta_info, struct station_list **sta_list);
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/**
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* @brief Free the station information list's memory
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*
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* @param sta_list: station information list
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*
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* @return ESP_OK
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*/
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esp_err_t tcpip_adapter_free_sta_list(struct station_list *sta_list);
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#ifdef __cplusplus
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