modem: cellular: Add modem driver for nRF93M1 module

Add cellular modem driver for Nordic nRF93M1 Cat 1 bis module

The DTS binding was already submitted in zephyrproject-rtos#106289

Signed-off-by: Seppo Takalo <seppo.takalo@nordicsemi.no>

Author: SeppoTakalo

drivers/modem/vendor_modem_cellular/CMakeLists.txt

@@ -9,6 +9,7 @@ endif()
 
 # zephyr-keep-sorted-start
 zephyr_library_sources_ifdef(CONFIG_DT_HAS_NORDIC_NRF91_SLM_ENABLED cellular_nordic_nrf91_slm.c)
+zephyr_library_sources_ifdef(CONFIG_DT_HAS_NORDIC_NRF93M1_ENABLED cellular_nordic_nrf93m1.c)
 zephyr_library_sources_ifdef(CONFIG_DT_HAS_QUECTEL_EG25_G_ENABLED cellular_quectel_eg25_g.c)
 zephyr_library_sources_ifdef(CONFIG_DT_HAS_QUECTEL_EG800Q_ENABLED cellular_quectel_eg800q.c)
 zephyr_library_sources_ifdef(CONFIG_DT_HAS_SIMCOM_A76XX_ENABLED cellular_simcom_a76xx.c)

drivers/modem/vendor_modem_cellular/cellular_nordic_nrf93m1.c

@@ -0,0 +1,77 @@
+/*
+ * Copyright (c) 2026 Nordic Semiconductor ASA
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#include <zephyr/drivers/modem/modem_cellular.h>
+
+#define DT_DRV_COMPAT nordic_nrf93m1
+
+MODEM_CELLULAR_COMMON_CHAT_MATCHES();
+MODEM_CHAT_MATCH_DEFINE(pwd_match, "POWERED DOWN", "", NULL);
+
+MODEM_CHAT_MATCHES_DEFINE(nordic_nrf93m1_unsol, MODEM_CELLULAR_COMMON_UNSOL_MATCHES,
+			  MODEM_CHAT_MATCH("RDY", "", modem_cellular_chat_on_modem_ready));
+
+MODEM_CHAT_SCRIPT_CMDS_DEFINE(nordic_nrf93m1_init_chat_script_cmds,
+			      MODEM_CHAT_SCRIPT_CMD_RESP("ATE0", ok_match),
+			      MODEM_CHAT_SCRIPT_CMD_RESP("AT+IFC=2,2", ok_match),
+			      MODEM_CHAT_SCRIPT_CMD_RESP("AT+CMUX=0,0,5,127", ok_match));
+
+MODEM_CHAT_SCRIPT_DEFINE(nordic_nrf93m1_init_chat_script, nordic_nrf93m1_init_chat_script_cmds,
+			 abort_matches, modem_cellular_chat_callback_handler, 10);
+
+MODEM_CHAT_SCRIPT_CMDS_DEFINE(nordic_nrf93m1_network_chat_script_cmds,
+			      MODEM_CHAT_SCRIPT_CMD_RESP("AT+CEREG=1", ok_match),
+			      MODEM_CHAT_SCRIPT_CMD_RESP("AT+CFUN=1", ok_match));
+
+MODEM_CHAT_SCRIPT_DEFINE(nordic_nrf93m1_network_chat_script,
+			 nordic_nrf93m1_network_chat_script_cmds, abort_matches,
+			 modem_cellular_chat_callback_handler, 10);
+
+MODEM_CHAT_SCRIPT_CMDS_DEFINE(nordic_nrf93m1_dial_chat_script_cmds,
+			      MODEM_CHAT_SCRIPT_CMD_RESP("ATD*99***1#", connect_match));
+
+MODEM_CHAT_SCRIPT_DEFINE(nordic_nrf93m1_dial_chat_script, nordic_nrf93m1_dial_chat_script_cmds,
+			 dial_abort_matches, modem_cellular_chat_callback_handler, 60);
+
+MODEM_CHAT_SCRIPT_CMDS_DEFINE(nordic_nrf93m1_shutdown_chat_script_cmds,
+			      MODEM_CHAT_SCRIPT_CMD_RESP("AT%POWD=1", pwd_match));
+
+MODEM_CHAT_SCRIPT_DEFINE(nordic_nrf93m1_shutdown_chat_script,
+			 nordic_nrf93m1_shutdown_chat_script_cmds, abort_matches,
+			 modem_cellular_chat_callback_handler, 10);
+
+static const struct modem_cellular_vendor_config nrf93m1_vendor = {
+	/* clang-format off */
+	.scripts = {
+		.init = &nordic_nrf93m1_init_chat_script,
+		.network = &nordic_nrf93m1_network_chat_script,
+		.dial = &nordic_nrf93m1_dial_chat_script,
+		.shutdown = &nordic_nrf93m1_shutdown_chat_script,
+	},
+	.unsol_matches = {
+		.matches = nordic_nrf93m1_unsol,
+		.size = ARRAY_SIZE(nordic_nrf93m1_unsol),
+	},
+	/* clang-format on */
+	.power_pulse_duration_ms = 100,
+	.reset_pulse_duration_ms = 500,
+	.startup_time_ms = 5000,
+	.shutdown_time_ms = 1000,
+};
+
+#define MODEM_CELLULAR_DEVICE_NORDIC_NRF93M1(inst)                                                 \
+	MODEM_DT_INST_PPP_DEFINE(inst, MODEM_CELLULAR_INST_NAME(ppp, inst), NULL, 98, 1500, 1500); \
+                                                                                                   \
+	static struct modem_cellular_data MODEM_CELLULAR_INST_NAME(data, inst) = {                 \
+		.chat_delimiter = "\r\n",                                                          \
+		.ppp = &MODEM_CELLULAR_INST_NAME(ppp, inst),                                       \
+	};                                                                                         \
+                                                                                                   \
+	MODEM_CELLULAR_DEFINE_AND_INIT_USER_PIPES(inst, (user_pipe_0, 3), (user_pipe_1, 4))        \
+                                                                                                   \
+	MODEM_CELLULAR_DEFINE_INSTANCE(inst, &nrf93m1_vendor)
+
+DT_INST_FOREACH_STATUS_OKAY(MODEM_CELLULAR_DEVICE_NORDIC_NRF93M1)