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drivers: modem: hl7800: Add airplane mode

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Add API to set HL7800 to airplane mode.
Also add option to boot into airplane mode.

Signed-off-by: Ryan Erickson <ryan.erickson@lairdconnect.com>
This commit is contained in:
Ryan Erickson 2021-08-19 16:56:58 -05:00 • committed by Anas Nashif
commit e29dbf5d04
3 changed files with 122 additions and 11 deletions
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22
drivers/modem/Kconfig.hl7800
View file

@ -269,9 +269,27 @@ config MODEM_HL7800_GET_IP_ADDR_INFO_ATTEMPTS
int "Number of attempts to get IP address info during init"
default 4
config MODEM_HL7800_DELAY_START
choice
prompt "Modem Boot Type"
default MODEM_HL7800_BOOT_NORMAL
config MODEM_HL7800_BOOT_NORMAL
bool "No Delay"
config MODEM_HL7800_BOOT_DELAY
bool "Delay secondary initialization of driver and network attach"
help
When true the application must call mdm_hl7800_reset.
When true the application must call mdm_hl7800_reset.
This mode delays the validity of modem info.
config MODEM_HL7800_BOOT_IN_AIRPLANE_MODE
bool "Enter airplane mode during init"
help
mdm_hl7800_set_functionality must be used by app to exit
airplane mode.
If bands are reconfigured, then this setting is overridden
because modem is rebooted into full functionality mode.
endchoice
endif # MODEM_HL7800

82
drivers/modem/hl7800.c
View file

@ -516,6 +516,7 @@ struct hl7800_iface_ctx {
int device_services_ind;
bool new_rat_cmd_support;
uint8_t operator_index;
enum mdm_hl7800_functionality functionality;
/* modem state */
bool allow_sleep;
@ -1075,6 +1076,41 @@ int32_t mdm_hl7800_get_operator_index(void)
}
}
int32_t mdm_hl7800_get_functionality(void)
{
int ret;
hl7800_lock();
wakeup_hl7800();
ictx.last_socket_id = 0;
ret = send_at_cmd(NULL, "AT+CFUN?", MDM_CMD_SEND_TIMEOUT, 0, false);
allow_sleep(true);
hl7800_unlock();
if (ret < 0) {
return ret;
} else {
return ictx.functionality;
}
}
int32_t mdm_hl7800_set_functionality(enum mdm_hl7800_functionality mode)
{
int ret;
char buf[sizeof("AT+CFUN=0,0")] = { 0 };
hl7800_lock();
wakeup_hl7800();
snprintk(buf, sizeof(buf), "AT+CFUN=%u,0", mode);
ictx.last_socket_id = 0;
ret = send_at_cmd(NULL, buf, MDM_CMD_SEND_TIMEOUT,
MDM_DEFAULT_AT_CMD_RETRIES, false);
allow_sleep(true);
hl7800_unlock();
return ret;
}
void mdm_hl7800_generate_status_events(void)
{
hl7800_lock();
@ -2480,6 +2516,32 @@ done:
return true;
}
static bool on_cmd_modem_functionality(struct net_buf **buf, uint16_t len)
{
struct net_buf *frag = NULL;
size_t out_len;
char rsp[MDM_HL7800_MODEM_FUNCTIONALITY_SIZE];
wait_for_modem_data_and_newline(buf, net_buf_frags_len(*buf),
MDM_HL7800_MODEM_FUNCTIONALITY_SIZE);
len = net_buf_findcrlf(*buf, &frag);
frag = NULL;
if (!frag) {
LOG_ERR("Unable to find end of response");
goto done;
}
out_len = net_buf_linearize(rsp, MDM_HL7800_MODEM_FUNCTIONALITY_STRLEN,
*buf, 0, len);
rsp[out_len] = 0;
ictx.functionality = strtol(rsp, NULL, 10);
LOG_INF("Modem Functionality: %u", ictx.functionality);
done:
return true;
}
#ifdef CONFIG_NEWLIB_LIBC
/* Handler: +CCLK: "yy/MM/dd,hh:mm:ss±zz" */
static bool on_cmd_rtc_query(struct net_buf **buf, uint16_t len)
@ -3446,6 +3508,7 @@ static void hl7800_rx(void)
CMD_HANDLER("AT+CEREG?", network_report_query),
CMD_HANDLER("+KCARRIERCFG: ", operator_index_query),
CMD_HANDLER("AT+CIMI", atcmdinfo_imsi),
CMD_HANDLER("+CFUN: ", modem_functionality),
#ifdef CONFIG_NEWLIB_LIBC
CMD_HANDLER("+CCLK: ", rtc_query),
#endif
@ -3839,12 +3902,6 @@ static int modem_boot_handler(char *reason)
__ASSERT(!ictx.mdm_echo_is_on, "Echo should be off");
/* The Laird bootloader puts the modem into airplane mode ("AT+CFUN=4,0").
* The radio is enabled here because airplane mode
* survives reset and power removal.
*/
SEND_AT_CMD_EXPECT_OK("AT+CFUN=1,0");
return 0;
error:
@ -3993,6 +4050,13 @@ reboot:
}
#endif
/* If this isn't defined, then keep the current state.
* If the bands are being reconfigured, this is overridden.
*/
#ifdef CONFIG_MODEM_HL7800_BOOT_IN_AIRPLANE_MODE
SEND_AT_CMD_EXPECT_OK("AT+CFUN=4,0");
#endif
SEND_AT_CMD_EXPECT_OK("AT+KBNDCFG?");
/* Configure LTE bands */
@ -4191,7 +4255,7 @@ reboot:
/* trigger APN update event */
event_handler(HL7800_EVENT_APN_UPDATE, &ictx.mdm_apn);
#ifdef CONFIG_MODEM_HL7800_DELAY_START
#ifdef CONFIG_MODEM_HL7800_BOOT_DELAY
if (!ictx.initialized) {
if (ictx.iface != NULL) {
hl7800_build_mac(&ictx);
@ -5073,7 +5137,7 @@ static int hl7800_init(const struct device *dev)
RX_THREAD_PRIORITY, 0, K_NO_WAIT),
"hl7800 rx");
#ifdef CONFIG_MODEM_HL7800_DELAY_START
#ifdef CONFIG_MODEM_HL7800_BOOT_DELAY
modem_reset();
#else
ret = modem_reset_and_configure();
@ -5090,7 +5154,7 @@ static void offload_iface_init(struct net_if *iface)
iface->if_dev->offload = &offload_funcs;
ctx->iface = iface;
if (!IS_ENABLED(CONFIG_MODEM_HL7800_DELAY_START)) {
if (!IS_ENABLED(CONFIG_MODEM_HL7800_BOOT_DELAY)) {
hl7800_build_mac(&ictx);
net_if_set_link_addr(iface, ictx.mac_addr, sizeof(ictx.mac_addr),
NET_LINK_ETHERNET);