Shaunak Datar commented on a discussion on bsps/aarch64/raspberrypi/start/mailbox.c: https://gitlab.rtems.org/rtems/rtos/rtems/-/merge_requests/915#note_139225 > + while (BCM2835_REG(BCM2711_MBOX_STATUS) & BCM2711_MBOX_FULL) { > + } > + > + BCM2835_REG(BCM2711_MBOX_WRITE) = > + (data & MBOX_MAIL_DATA_MASK) | (channel & MBOX_MAIL_CHANNEL_MASK); > +} > + > +uint32_t rpi_mbox_read(bcm2711_mbox_channel channel) { > + uint32_t data; > + while (1) { > + while (BCM2835_REG(BCM2711_MBOX_STATUS) & BCM2711_MBOX_EMPTY) { > + } > + data = BCM2835_REG(BCM2711_MBOX_READ); > + > + if ((data & MBOX_MAIL_CHANNEL_MASK) == channel) { > + return data & MBOX_MAIL_DATA_MASK; A mutex lock would make more sense here, wouldn't it @c-mauderer -- View it on GitLab: https://gitlab.rtems.org/rtems/rtos/rtems/-/merge_requests/915#note_139225 You're receiving this email because of your account on gitlab.rtems.org.
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