Date: Tue, 28 Jul 2020 11:13:37 +0000 (UTC) From: Andrew Turner <andrew@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r363645 - head/sys/arm/broadcom/bcm2835 Message-ID: <202007281113.06SBDbBn047709@repo.freebsd.org>
next in thread | raw e-mail | index | archive | help
Author: andrew Date: Tue Jul 28 11:13:37 2020 New Revision: 363645 URL: https://svnweb.freebsd.org/changeset/base/363645 Log: Aadd Raspberry Pi firmware messages to manage GPIOs Some GPIOs are managed by an external IO expaandder through the firmware. Add the message details for these. Sponsored by: Innovate UK Modified: head/sys/arm/broadcom/bcm2835/bcm2835_firmware.h Modified: head/sys/arm/broadcom/bcm2835/bcm2835_firmware.h ============================================================================== --- head/sys/arm/broadcom/bcm2835/bcm2835_firmware.h Tue Jul 28 10:58:37 2020 (r363644) +++ head/sys/arm/broadcom/bcm2835/bcm2835_firmware.h Tue Jul 28 11:13:37 2020 (r363645) @@ -142,6 +142,61 @@ union msg_set_turbo_body { } resp; }; +#define BCM2835_FIRMWARE_TAG_GET_GPIO_STATE 0x00030041 +#define BCM2835_FIRMWARE_TAG_SET_GPIO_STATE 0x00038041 +#define BCM2835_FIRMWARE_TAG_GET_GPIO_CONFIG 0x00030043 +#define BCM2835_FIRMWARE_TAG_SET_GPIO_CONFIG 0x00038043 + +#define BCM2835_FIRMWARE_GPIO_IN 0 +#define BCM2835_FIRMWARE_GPIO_OUT 1 + +union msg_get_gpio_state { + struct { + uint32_t gpio; + } req; + struct { + uint32_t gpio; + uint32_t state; + } resp; +}; + +union msg_set_gpio_state { + struct { + uint32_t gpio; + uint32_t state; + } req; + struct { + uint32_t gpio; + } resp; +}; + +union msg_get_gpio_config { + struct { + uint32_t gpio; + } req; + struct { + uint32_t gpio; + uint32_t dir; + uint32_t pol; + uint32_t term_en; + uint32_t term_pull_up; + } resp; +}; + +union msg_set_gpio_config { + struct { + uint32_t gpio; + uint32_t dir; + uint32_t pol; + uint32_t term_en; + uint32_t term_pull_up; + uint32_t state; + } req; + struct { + uint32_t gpio; + } resp; +}; + int bcm2835_firmware_property(device_t, uint32_t, void *, size_t); #endif
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?202007281113.06SBDbBn047709>