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drivers: modem: gsm_ppp: Use DTS

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Convert the gsm_ppp driver to use DTS.

Signed-off-by: Yong Cong Sin <yongcong.sin@gmail.com>
This commit is contained in:
Yong Cong Sin 2021-04-25 01:09:30 +08:00 • committed by Anas Nashif
commit 9d2f8a1124
19 changed files with 87 additions and 29 deletions
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3
drivers/modem/Kconfig.gsm
View file

@ -29,9 +29,6 @@ config MODEM_GSM_SIMCOM
endchoice
config MODEM_GSM_UART_NAME
string "UART device name the modem is connected to"
config MODEM_GSM_RX_STACK_SIZE
int "Size of the stack allocated for receiving data from modem"
default 512

16
drivers/modem/gsm_ppp.c
View file

@ -4,6 +4,8 @@
* SPDX-License-Identifier: Apache-2.0
*/
#define DT_DRV_COMPAT zephyr_gsm_ppp
#include <logging/log.h>
LOG_MODULE_REGISTER(modem_gsm, CONFIG_MODEM_LOG_LEVEL);
@ -24,6 +26,7 @@ LOG_MODULE_REGISTER(modem_gsm, CONFIG_MODEM_LOG_LEVEL);
#include <stdio.h>
#define GSM_UART_NODE DT_INST_BUS(0)
#define GSM_CMD_READ_BUF 128
#define GSM_CMD_AT_TIMEOUT K_SECONDS(2)
#define GSM_CMD_SETUP_TIMEOUT K_SECONDS(6)
@ -522,8 +525,7 @@ static struct net_if *ppp_net_if(void)
static void set_ppp_carrier_on(struct gsm_modem *gsm)
{
static const struct ppp_api *api;
const struct device *ppp_dev =
device_get_binding(CONFIG_NET_PPP_DRV_NAME);
const struct device *ppp_dev = DEVICE_DT_GET(DT_INST(0, zephyr_gsm_ppp));
struct net_if *iface = gsm->iface;
int ret;
@ -821,7 +823,7 @@ static void mux_setup(struct k_work *work)
{
struct gsm_modem *gsm = CONTAINER_OF(work, struct gsm_modem,
gsm_configure_work);
const struct device *uart = device_get_binding(CONFIG_MODEM_GSM_UART_NAME);
const struct device *uart = DEVICE_DT_GET(GSM_UART_NODE);
int ret;
/* We need to call this to reactivate mux ISR. Note: This is only called
@ -980,7 +982,7 @@ void gsm_ppp_start(const struct device *dev)
/* Re-init underlying UART comms */
int r = modem_iface_uart_init_dev(&gsm->context.iface,
device_get_binding(CONFIG_MODEM_GSM_UART_NAME));
DEVICE_DT_GET(GSM_UART_NODE));
if (r) {
LOG_ERR("modem_iface_uart_init returned %d", r);
return;
@ -1057,7 +1059,7 @@ static int gsm_init(const struct device *dev)
gsm->gsm_data.rx_rb_buf_len = sizeof(gsm->gsm_rx_rb_buf);
r = modem_iface_uart_init(&gsm->context.iface, &gsm->gsm_data,
device_get_binding(CONFIG_MODEM_GSM_UART_NAME));
DEVICE_DT_GET(GSM_UART_NODE));
if (r < 0) {
LOG_DBG("iface uart error %d", r);
return r;
@ -1091,5 +1093,5 @@ static int gsm_init(const struct device *dev)
return 0;
}
DEVICE_DEFINE(gsm_ppp, GSM_MODEM_DEVICE_NAME, gsm_init, NULL, &gsm, NULL,
POST_KERNEL, CONFIG_MODEM_GSM_INIT_PRIORITY, NULL);
DEVICE_DT_DEFINE(DT_INST(0, zephyr_gsm_ppp), gsm_init, NULL, &gsm, NULL,
POST_KERNEL, CONFIG_MODEM_GSM_INIT_PRIORITY, NULL);

2
drivers/net/ppp.c
View file

@ -862,7 +862,7 @@ static int ppp_start(const struct device *dev)
dev_name = mux->name;
#elif IS_ENABLED(CONFIG_MODEM_GSM_PPP)
dev_name = CONFIG_MODEM_GSM_UART_NAME;
dev_name = DT_BUS_LABEL(DT_INST(0, zephyr_gsm_ppp));
#else
dev_name = CONFIG_NET_PPP_UART_NAME;
#endif

8
dts/bindings/modem/zephyr,gsm-ppp.yaml Normal file
View file

@ -0,0 +1,8 @@
# Copyright (c) 2021 G-Technologies Sdn. Bhd.
# SPDX-License-Identifier: Apache-2.0
description: GSM PPP modem
compatible: "zephyr,gsm-ppp"
include: uart-device.yaml

2
include/drivers/gsm_ppp.h
View file

@ -7,8 +7,6 @@
#ifndef GSM_PPP_H_
#define GSM_PPP_H_
#define GSM_MODEM_DEVICE_NAME "modem_gsm"
/** @cond INTERNAL_HIDDEN */
struct device;
void gsm_ppp_start(const struct device *dev);

18
samples/net/cloud/tagoio_http_post/README.rst
View file

@ -87,17 +87,27 @@ Modem
The Modem support is quite similar to WIFI, you need a board with an embedded
Modem support or you can add a shield. Currently, the overlay was created to
allow modems with PPP support. This was tested using ``SIMcom SIM808 EVB``.
Additionally you need fill ``CONFIG_MODEM_GSM_UART_NAME`` with the UART label
``CONFIG_MODEM_GSM_APN`` with the correspondent Access Point Name (APN) at
:zephyr_file:`samples/net/cloud/tagoio_http_post/overlay-modem.conf` file.
Additionally you need fill ``CONFIG_MODEM_GSM_APN`` with the correspondent Access
Point Name (APN) at
:zephyr_file:`samples/net/cloud/tagoio_http_post/overlay-modem.conf` file. A
DTC overlay file should be used to configure the glue between the modem and the
uart port. It can reside at boards directory, with the board name, or it can be
a special designator like defined at ``arduino.overlay``.
.. zephyr-app-commands::
:zephyr-app: samples/net/cloud/tagoio_http_post
:board: [sam4e_xpro | frdm_k64f]
:board: sam4e_xpro
:gen-args: -DOVERLAY_CONFIG=overlay-modem.conf
:goals: build flash
:compact:
.. zephyr-app-commands::
:zephyr-app: samples/net/cloud/tagoio_http_post
:board: frdm_k64f
:gen-args: -DOVERLAY_CONFIG=overlay-modem.conf -DDTC_OVERLAY_FILE=arduino.overlay
:goals: build flash
:compact:
In a terminal window you can check if communication is happen:
.. code-block:: console

15
samples/net/cloud/tagoio_http_post/arduino.overlay Normal file
View file

@ -0,0 +1,15 @@
/*
* Copyright (c) 2021 G-Technologies Sdn. Bhd.
*
* SPDX-License-Identifier: Apache-2.0
*/
&arduino_serial {
status = "okay";
current-speed = <115200>;
gsm: gsm-modem {
compatible = "zephyr,gsm-ppp";
label = "gsm_ppp";
};
};

15
samples/net/cloud/tagoio_http_post/boards/sam4e_xpro.overlay Normal file
View file

@ -0,0 +1,15 @@
/*
* Copyright (c) 2021 G-Technologies Sdn. Bhd.
*
* SPDX-License-Identifier: Apache-2.0
*/
&usart1 {
status = "okay";
current-speed = <115200>;
gsm: gsm-modem {
compatible = "zephyr,gsm-ppp";
label = "gsm_ppp";
};
};

1
samples/net/cloud/tagoio_http_post/overlay-modem.conf
View file

@ -7,7 +7,6 @@ CONFIG_MODEM_SHELL=y
CONFIG_MODEM_CMD_HANDLER_MAX_PARAM_COUNT=20
CONFIG_MODEM_GSM_PPP=y
CONFIG_MODEM_GSM_RX_STACK_SIZE=1024
CONFIG_MODEM_GSM_UART_NAME="<your board UART port label>"
CONFIG_MODEM_GSM_APN="<your Access Point Name (APN)>"
# Network management events

5
samples/net/cloud/tagoio_http_post/sample.yaml
View file

@ -16,4 +16,7 @@ tests:
platform_allow: frdm_k64f nucleo_f767zi
sample.net.cloud.tagoio_http_post.modem:
extra_args: OVERLAY_CONFIG="overlay-modem.conf"
platform_allow: sam4e_xpro frdm_k64f
platform_allow: sam4e_xpro
sample.net.cloud.tagoio_http_post.modem.arduino:
extra_args: OVERLAY_CONFIG="overlay-modem.conf" DTC_OVERLAY_FILE="arduino.overlay"
platform_allow: frdm_k64f

4
samples/net/gsm_modem/boards/frdm_uart2_dts.overlay
View file

@ -6,4 +6,8 @@
&uart2 {
status = "okay";
current-speed = <115200>;
gsm: gsm-modem {
compatible = "zephyr,gsm-ppp";
label = "gsm_ppp";
};
};

1
samples/net/gsm_modem/prj.conf
View file

@ -4,7 +4,6 @@ CONFIG_SERIAL=y
# GSM modem support
CONFIG_MODEM=y
CONFIG_MODEM_GSM_PPP=y
CONFIG_MODEM_GSM_UART_NAME="UART_1"
# PPP networking support
CONFIG_NET_PPP=y

2
samples/net/gsm_modem/sample.yaml
View file

@ -2,6 +2,8 @@ common:
harness: net
depends_on: serial-net
tags: net ppp modem gsm
platform_allow: frdm_k64f
extra_args: DTC_OVERLAY_FILE="boards/frdm_uart2_dts.overlay"
sample:
description: Sample for generic GSM modem
name: Generic GSM modem using PPP

7
samples/net/gsm_modem/src/main.c
View file

@ -93,13 +93,14 @@ static void event_handler(struct net_mgmt_event_callback *cb,
int main(void)
{
const struct device *uart_dev =
device_get_binding(CONFIG_MODEM_GSM_UART_NAME);
DEVICE_DT_GET(DT_BUS(DT_INST(0, zephyr_gsm_ppp)));
gsm_dev = device_get_binding(GSM_MODEM_DEVICE_NAME);
gsm_dev = DEVICE_DT_GET(DT_INST(0, zephyr_gsm_ppp));
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);
DT_BUS_LABEL(DT_INST(0, zephyr_gsm_ppp)), uart_dev,
gsm_dev->name);
net_mgmt_init_event_callback(&mgmt_cb, event_handler,
NET_EVENT_L4_CONNECTED |

6
samples/subsys/mgmt/updatehub/arduino.overlay
View file

@ -6,7 +6,9 @@
&arduino_serial {
status = "okay";
label = "arduino_serial";
current-speed = <115200>;
gsm: gsm-modem {
compatible = "zephyr,gsm-ppp";
label = "gsm_ppp";
};
};

1
samples/subsys/mgmt/updatehub/overlay-modem.conf
View file

@ -15,7 +15,6 @@ CONFIG_SERIAL=y
CONFIG_MODEM=y
CONFIG_MODEM_SHELL=y
CONFIG_MODEM_GSM_PPP=y
CONFIG_MODEM_GSM_UART_NAME="arduino_serial"
CONFIG_MODEM_GSM_APN="<Your Access Point Network>"
# PPP networking support

4
samples/subsys/mgmt/updatehub/src/main.c
View file

@ -139,10 +139,10 @@ void main(void)
#elif defined(CONFIG_MODEM_GSM_PPP)
const struct device *uart_dev =
device_get_binding(CONFIG_MODEM_GSM_UART_NAME);
DEVICE_DT_GET(DT_BUS(DT_INST(0, zephyr_gsm_ppp)));
LOG_INF("APN '%s' UART '%s' device %p", CONFIG_MODEM_GSM_APN,
CONFIG_MODEM_GSM_UART_NAME, uart_dev);
DT_BUS_LABEL(DT_INST(0, zephyr_gsm_ppp)), uart_dev);
#endif
net_mgmt_init_event_callback(&mgmt_cb, event_handler, EVENT_MASK);

1
tests/drivers/build_all/modem/modem.conf
View file

@ -15,4 +15,3 @@ CONFIG_MODEM_HL7800_APN_NAME="internet"
CONFIG_MODEM_HL7800_RAT_M1=y
CONFIG_MODEM_WNCM14A2A=y
CONFIG_MODEM_GSM_PPP=y
CONFIG_MODEM_GSM_UART_NAME="TEST_UART_CTLR"

5
tests/drivers/build_all/modem/uart.dtsi
View file

@ -45,3 +45,8 @@ test_quectel_bg9x: quectel_bg9x {
mdm-power-gpios = <&test_gpio 0 0>;
mdm-reset-gpios = <&test_gpio 0 0>;
};
test_gsm_ppp: gsm_ppp {
compatible = "zephyr,gsm-ppp";
label = "gsm_ppp";
};