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samples: net: gsm: Add suspend/resume shell commands

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Add commands to suspend or resume the GSM modem. These commands
might not be enough as at least the SIMCOM 808 modem requires
that the modem is reset when it is resumed, and this application
does not do any reset atm.

Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
This commit is contained in:
Jukka Rissanen 2020-10-08 14:06:18 +03:00 • committed by Jukka Rissanen
commit e2f13276cd
1 changed files with 62 additions and 4 deletions
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66
samples/net/gsm_modem/src/main.c
View file

@ -6,15 +6,66 @@
#include <zephyr.h>
#include <sys/printk.h>
#include <shell/shell.h>
#include <drivers/uart.h>
#include <net/net_mgmt.h>
#include <net/net_event.h>
#include <net/net_conn_mgr.h>
#include <drivers/gsm_ppp.h>
#include <logging/log.h>
LOG_MODULE_REGISTER(sample_gsm_ppp, LOG_LEVEL_DBG);
static const struct device *gsm_dev;
static struct net_mgmt_event_callback mgmt_cb;
static bool connected;
static bool starting = true;
static int cmd_sample_modem_suspend(const struct shell *shell,
size_t argc, char *argv[])
{
if (!connected) {
shell_fprintf(shell, SHELL_NORMAL, "Not connected.\n");
return -ENOEXEC;
}
gsm_ppp_stop(gsm_dev);
return 0;
}
static int cmd_sample_modem_resume(const struct shell *shell,
size_t argc, char *argv[])
{
if (starting) {
shell_fprintf(shell, SHELL_NORMAL,
"Please wait for network connection.\n");
return -ENOEXEC;
}
if (connected) {
shell_fprintf(shell, SHELL_NORMAL, "Already connected.\n");
return -ENOEXEC;
}
gsm_ppp_start(gsm_dev);
return 0;
}
SHELL_STATIC_SUBCMD_SET_CREATE(sample_commands,
SHELL_CMD(resume, NULL,
"Resume the modem\n",
cmd_sample_modem_resume),
SHELL_CMD(suspend, NULL,
"Suspend the modem\n",
cmd_sample_modem_suspend),
SHELL_SUBCMD_SET_END
);
SHELL_CMD_REGISTER(sample, &sample_commands,
"Sample application commands", NULL);
static void event_handler(struct net_mgmt_event_callback *cb,
uint32_t mgmt_event, struct net_if *iface)
@ -24,24 +75,31 @@ static void event_handler(struct net_mgmt_event_callback *cb,
return;
}
starting = false;
if (mgmt_event == NET_EVENT_L4_CONNECTED) {
LOG_INF("Network connected");
connected = true;
return;
}
if (mgmt_event == NET_EVENT_L4_DISCONNECTED) {
LOG_INF("Network disconnected");
connected = false;
return;
}
}
int main(void)
{
const struct device *uart_dev = device_get_binding(CONFIG_MODEM_GSM_UART_NAME);
const struct device *uart_dev =
device_get_binding(CONFIG_MODEM_GSM_UART_NAME);
LOG_INF("%s: booted board '%s' APN '%s' UART '%s' device %p",
__func__, CONFIG_BOARD, CONFIG_MODEM_GSM_APN,
CONFIG_MODEM_GSM_UART_NAME, uart_dev);
gsm_dev = device_get_binding(GSM_MODEM_DEVICE_NAME);
LOG_INF("Board '%s' APN '%s' UART '%s' device %p (%s)",
CONFIG_BOARD, CONFIG_MODEM_GSM_APN,
CONFIG_MODEM_GSM_UART_NAME, uart_dev, GSM_MODEM_DEVICE_NAME);
net_mgmt_init_event_callback(&mgmt_cb, event_handler,
NET_EVENT_L4_CONNECTED |