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drivers: modem: hl7800: Query IMSI

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Add API to query SIM card IMSI.

Signed-off-by: Ryan Erickson <ryan.erickson@lairdconnect.com>
This commit is contained in:
Ryan Erickson 2021-08-19 15:32:34 -05:00 committed by Christopher Friedt
parent d83aaef031
commit ac751b7bcc
2 changed files with 57 additions and 0 deletions
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47
drivers/modem/hl7800.c
View file

@ -505,6 +505,7 @@ struct hl7800_iface_ctx {
enum mdm_hl7800_radio_mode mdm_rat;
char mdm_active_bands_string[MDM_HL7800_LTE_BAND_STR_SIZE];
char mdm_bands_string[MDM_HL7800_LTE_BAND_STR_SIZE];
char mdm_imsi[MDM_HL7800_IMSI_MAX_STR_SIZE];
uint16_t mdm_bands_top;
uint32_t mdm_bands_middle;
uint32_t mdm_bands_bottom;
@ -1517,6 +1518,42 @@ done:
return true;
}
static bool on_cmd_atcmdinfo_imsi(struct net_buf **buf, uint16_t len)
{
struct net_buf *frag = NULL;
size_t out_len;
/* The handler for the IMSI is based on the command.
* waiting for: <IMSI>\r\n
*/
wait_for_modem_data_and_newline(buf, net_buf_frags_len(*buf),
MDM_HL7800_IMSI_MIN_STR_SIZE);
frag = NULL;
len = net_buf_findcrlf(*buf, &frag);
if (!frag) {
LOG_ERR("Unable to find IMSI end");
goto done;
}
if (len > MDM_HL7800_IMSI_MAX_STRLEN) {
LOG_WRN("IMSI too long (len:%d)", len);
len = MDM_HL7800_IMSI_MAX_STRLEN;
}
out_len = net_buf_linearize(ictx.mdm_imsi, MDM_HL7800_IMSI_MAX_STR_SIZE,
*buf, 0, len);
ictx.mdm_imsi[out_len] = 0;
if (strstr(ictx.mdm_imsi, "ERROR") != NULL) {
LOG_ERR("Unable to read IMSI");
memset(ictx.mdm_imsi, 0, sizeof(ictx.mdm_imsi));
}
LOG_INF("IMSI: %s", log_strdup(ictx.mdm_imsi));
done:
return true;
}
static void dns_work_cb(struct k_work *work)
{
#if defined(CONFIG_DNS_RESOLVER) && !defined(CONFIG_DNS_SERVER_IP_ADDRESSES)
@ -1556,6 +1593,11 @@ char *mdm_hl7800_get_fw_version(void)
return ictx.mdm_revision;
}
char *mdm_hl7800_get_imsi(void)
{
return ictx.mdm_imsi;
}
/* Handler: +CGCONTRDP: <cid>,<bearer_id>,<apn>,<local_addr and subnet_mask>,
* <gw_addr>,<DNS_prim_addr>,<DNS_sec_addr>
*/
@ -3382,6 +3424,7 @@ static void hl7800_rx(void)
CMD_HANDLER("+CGDCONT: 1", atcmdinfo_pdp_context),
CMD_HANDLER("AT+CEREG?", network_report_query),
CMD_HANDLER("+KCARRIERCFG: ", operator_index_query),
CMD_HANDLER("AT+CIMI", atcmdinfo_imsi),
#ifdef CONFIG_NEWLIB_LIBC
CMD_HANDLER("+CCLK: ", rtc_query),
#endif
@ -4079,6 +4122,10 @@ reboot:
/* query SIM ICCID */
SEND_AT_CMD_IGNORE_ERROR("AT+CCID?");
/* query SIM IMSI */
(void)send_at_cmd(NULL, "AT+CIMI", MDM_CMD_SEND_TIMEOUT,
MDM_DEFAULT_AT_CMD_RETRIES, true);
/* An empty string is used here so that it doesn't conflict
* with the APN used in the +CGDCONT command.
*/

10
include/drivers/modem/hl7800.h
View file

@ -60,6 +60,10 @@ struct mdm_hl7800_apn {
#define MDM_HL7800_OPERATOR_INDEX_SIZE 3
#define MDM_HL7800_OPERATOR_INDEX_STRLEN (MDM_HL7800_OPERATOR_INDEX_SIZE - 1)
#define MDM_HL7800_IMSI_MIN_STR_SIZE 15
#define MDM_HL7800_IMSI_MAX_STR_SIZE 16
#define MDM_HL7800_IMSI_MAX_STRLEN (MDM_HL7800_IMSI_MAX_STR_SIZE - 1)
enum mdm_hl7800_radio_mode { MDM_RAT_CAT_M1 = 0, MDM_RAT_CAT_NB1 };
enum mdm_hl7800_event {
@ -208,6 +212,12 @@ char *mdm_hl7800_get_imei(void);
*/
char *mdm_hl7800_get_fw_version(void);
/**
* @brief Get the IMSI
*
*/
char *mdm_hl7800_get_imsi(void);
/**
* @brief Update the Access Point Name in the modem.
*