diff options
Diffstat (limited to 'meta-ampere/meta-mitchell/recipes-phosphor/console/obmc-console/ampere_uartmux_ctrl.sh')
| -rw-r--r-- | meta-ampere/meta-mitchell/recipes-phosphor/console/obmc-console/ampere_uartmux_ctrl.sh | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/meta-ampere/meta-mitchell/recipes-phosphor/console/obmc-console/ampere_uartmux_ctrl.sh b/meta-ampere/meta-mitchell/recipes-phosphor/console/obmc-console/ampere_uartmux_ctrl.sh new file mode 100644 index 0000000000..387cfcf92c --- /dev/null +++ b/meta-ampere/meta-mitchell/recipes-phosphor/console/obmc-console/ampere_uartmux_ctrl.sh @@ -0,0 +1,47 @@ +#!/bin/bash +# +# shellcheck disable=SC2046 + +if [ $# -lt 2 ]; then + exit 1 +fi + +case "$1" in + 1) GPIO_UARTx_MODE0="uart1-mode0" + GPIO_UARTx_MODE1="uart1-mode1" + # CPU0 UART0 connects to BMC UART1 + CONSOLE_PORT=0 + ;; + *) echo "Invalid UART port selection" + exit 1 + ;; +esac + +# Only switch the MUX when there is no active connection. This means we only +# switch the MUX before the first session starts and after the last session +# closes. We do this by querying number of connected sessions to the socket +# of requested console port. +# Example format: Accepted: 1; Connected: 1; +CONNECTED=$(systemctl --no-pager status obmc-console-ttyS${CONSOLE_PORT}-ssh.socket | grep -w Connected | cut -d ':' -f 3 | tr -d ' ;') +if [ ! "$CONNECTED" -le 1 ]; then + echo "Please close all connected session to ttyS${CONSOLE_PORT} !" + exit 0 +fi + +echo "Ampere UART MUX CTRL UART port $1 to mode $2" + +case "$2" in + # To HDR + 1) gpioset $(gpiofind "$GPIO_UARTx_MODE0")=1 + gpioset $(gpiofind "$GPIO_UARTx_MODE1")=0 + exit 0 + ;; + # To BMC + 2) gpioset $(gpiofind "$GPIO_UARTx_MODE0")=0 + gpioset $(gpiofind "$GPIO_UARTx_MODE1")=1 + exit 0 + ;; + *) echo "Invalid UART mode selection" + exit 1 + ;; +esac |