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modem: hl7800: Fix DNS in sleep mode

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When sleep modes are used, sockets are restored from NV after boot.
If the network changes IP addresses, restore sockets maintain old network
info in the HL7800 firmware.
On boot, restored sockets should be closed to ensure new sockets
are created with updated network info.

Signed-off-by: Ryan Erickson <ryan.erickson@ezurio.com>
This commit is contained in:
Ryan Erickson 2024-09-06 14:54:22 -05:00 committed by Benjamin Cabé
parent adffb84329
commit 8a1336ec87
1 changed files with 6 additions and 12 deletions
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18
drivers/modem/hl7800.c
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@ -427,6 +427,7 @@ struct hl7800_iface_ctx {
bool wait_for_KSUP;
uint32_t wait_for_KSUP_tries;
bool reconfig_IP_connection;
bool reset_sockets;
char dns_v4_string[NET_IPV4_ADDR_LEN];
char no_id_resp_cmd[NO_ID_RESP_CMD_MAX_LENGTH];
bool search_no_id_resp;
@ -4065,7 +4066,8 @@ static bool on_cmd_sockcreate(enum net_sock_type type, struct net_buf **buf, uin
if (!sock) {
LOG_DBG("look up new socket by creation id");
sock = socket_from_id(MDM_CREATE_SOCKET_ID);
if (!sock || sock->type != type) {
if (iface_ctx.reset_sockets || !sock || sock->type != type) {
iface_ctx.reset_sockets = false;
if (queue_stale_socket(type, iface_ctx.last_socket_id) == 0) {
/* delay some time before socket cleanup in case there
* are multiple sockets to cleanup
@ -5598,11 +5600,8 @@ reboot:
config_apn = true;
}
/* Query PDP authentication context to get APN username/password.
* Temporary Workaround - Ignore error
* On some modules this is returning an error and the response data.
*/
SEND_AT_CMD_IGNORE_ERROR("AT+WPPP?");
/* Disable PDP authentication, the driver does not support it */
SEND_AT_CMD_EXPECT_OK("AT+WPPP=0");
#if CONFIG_MODEM_HL7800_SET_APN_NAME_ON_STARTUP
if (iface_ctx.state == HL7800_STATE_NOT_READY) {
@ -5634,12 +5633,6 @@ reboot:
/* Turn on EPS network registration status reporting */
SEND_AT_CMD_EXPECT_OK("AT+CEREG=5");
/* query all socket configs to cleanup any sockets that are not
* tracked by the driver
*/
SEND_AT_CMD_EXPECT_OK("AT+KTCPCFG?");
SEND_AT_CMD_EXPECT_OK("AT+KUDPCFG?");
/* Enabled the LTE radio */
#if !defined(CONFIG_MODEM_HL7800_BOOT_IN_AIRPLANE_MODE)
SEND_AT_CMD_EXPECT_OK("AT+CFUN=1,0");
@ -6402,6 +6395,7 @@ static int hl7800_init(const struct device *dev)
ARG_UNUSED(dev);
LOG_DBG("HL7800 Init");
iface_ctx.reset_sockets = true;
/* The UART starts in the on state and CTS is set low by the HL7800 */
iface_ctx.cts_state = iface_ctx.last_cts_state = 0;