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drivers: net: ppp: Remove integration with GSM_MUX

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The gsm_ppp driver is deprecated, and will be removed, along with
its dependencies UART_MUX and GSM_MUX.

This commit removes the integration with GSM_MUX from ppp.c, making
it solely dependent on the chosen node zephyr,ppp-uart.

Signed-off-by: Bjarki Arge Andreasen <bjarki@arge-andreasen.me>
This commit is contained in:
Bjarki Arge Andreasen 2024-05-24 17:08:24 +02:00 committed by Carles Cufí
parent 7e764610b1
commit b0a9ae266b
2 changed files with 22 additions and 58 deletions
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2
drivers/net/Kconfig
View file

@ -15,14 +15,12 @@ menuconfig NET_PPP
depends on NET_NATIVE
select RING_BUFFER
select CRC
select UART_MUX if GSM_MUX
if NET_PPP
config NET_PPP_ASYNC_UART
bool "Asynchronous UART API is used"
depends on UART_ASYNC_API
depends on !GSM_MUX
config NET_PPP_DRV_NAME
string "PPP Driver name"

78
drivers/net/ppp.c
View file

@ -30,7 +30,6 @@ LOG_MODULE_REGISTER(net_ppp, LOG_LEVEL);
#include <zephyr/sys/ring_buffer.h>
#include <zephyr/sys/crc.h>
#include <zephyr/drivers/uart.h>
#include <zephyr/drivers/console/uart_mux.h>
#include <zephyr/random/random.h>
#include <zephyr/posix/net/if_arp.h>
#include <zephyr/net/ethernet.h>
@ -421,33 +420,24 @@ static int ppp_send_flush(struct ppp_driver_context *ppp, int off)
NET_ETH_PTYPE_HDLC);
}
/* If we're using gsm_mux, We don't want to use poll_out because sending
* one byte at a time causes each byte to get wrapped in muxing headers.
* But we can safely call uart_fifo_fill outside of ISR context when
* muxing because uart_mux implements it in software.
*/
if (IS_ENABLED(CONFIG_GSM_MUX)) {
(void)uart_fifo_fill(ppp->dev, buf, off);
} else if (IS_ENABLED(CONFIG_NET_PPP_ASYNC_UART)) {
#if defined(CONFIG_NET_PPP_ASYNC_UART)
int ret;
const int32_t timeout = CONFIG_NET_PPP_ASYNC_UART_TX_TIMEOUT
? CONFIG_NET_PPP_ASYNC_UART_TX_TIMEOUT * USEC_PER_MSEC
: SYS_FOREVER_US;
int ret;
const int32_t timeout = CONFIG_NET_PPP_ASYNC_UART_TX_TIMEOUT
? CONFIG_NET_PPP_ASYNC_UART_TX_TIMEOUT * USEC_PER_MSEC
: SYS_FOREVER_US;
k_sem_take(&uarte_tx_finished, K_FOREVER);
k_sem_take(&uarte_tx_finished, K_FOREVER);
ret = uart_tx(ppp->dev, buf, off, timeout);
if (ret) {
LOG_ERR("uart_tx() failed, err %d", ret);
k_sem_give(&uarte_tx_finished);
}
#endif
} else {
while (off--) {
uart_poll_out(ppp->dev, *buf++);
}
ret = uart_tx(ppp->dev, buf, off, timeout);
if (ret) {
LOG_ERR("uart_tx() failed, err %d", ret);
k_sem_give(&uarte_tx_finished);
}
#else
while (off--) {
uart_poll_out(ppp->dev, *buf++);
}
#endif
return 0;
}
@ -1052,14 +1042,13 @@ use_random_mac:
memset(ppp->buf, 0, sizeof(ppp->buf));
/* If we have a GSM modem with PPP support or interface autostart is disabled
* from Kconfig, then do not start the interface automatically but only
* after the modem is ready or when manually started.
#if defined(CONFIG_PPP_NET_IF_NO_AUTO_START)
/*
* If interface autostart is disabled from Kconfig, then do not start the
* interface automatically but only when manually started.
*/
if (IS_ENABLED(CONFIG_MODEM_GSM_PPP) ||
IS_ENABLED(CONFIG_PPP_NET_IF_NO_AUTO_START)) {
net_if_flag_set(iface, NET_IF_NO_AUTO_START);
}
net_if_flag_set(iface, NET_IF_NO_AUTO_START);
#endif
}
#if defined(CONFIG_NET_STATISTICS_PPP)
@ -1110,34 +1099,11 @@ static int ppp_start(const struct device *dev)
{
struct ppp_driver_context *context = dev->data;
/* Init the PPP UART only once. This should only be done after
* the GSM muxing is setup and enabled. GSM modem will call this
* after everything is ready to be connected.
*/
/* Init the PPP UART. This should only be called once. */
#if !defined(CONFIG_NET_TEST)
if (atomic_cas(&context->modem_init_done, false, true)) {
/* Now try to figure out what device to open. If GSM muxing
* is enabled, then use it. If not, then check if modem
* configuration is enabled, and use that. If none are enabled,
* then use our own config.
*/
#if defined(CONFIG_GSM_MUX)
const struct device *mux;
mux = uart_mux_find(CONFIG_GSM_MUX_DLCI_PPP);
if (mux == NULL) {
LOG_ERR("Cannot find GSM mux dev for DLCI %d",
CONFIG_GSM_MUX_DLCI_PPP);
return -ENOENT;
}
context->dev = mux;
#elif IS_ENABLED(CONFIG_MODEM_GSM_PPP)
context->dev = DEVICE_DT_GET(DT_BUS(DT_INST(0, zephyr_gsm_ppp)));
#else
/* dts chosen zephyr,ppp-uart case */
context->dev = DEVICE_DT_GET(DT_CHOSEN(zephyr_ppp_uart));
#endif
LOG_DBG("Initializing PPP to use %s", context->dev->name);
if (!device_is_ready(context->dev)) {