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| author | Andrew Turner <andrew@FreeBSD.org> | 2020-07-28 11:13:37 +0000 |
|---|---|---|
| committer | Andrew Turner <andrew@FreeBSD.org> | 2020-07-28 11:13:37 +0000 |
| commit | d9501cbab542bc875acba5396342a47b097e7e8d (patch) | |
| tree | 86ae6bff433eebf62df3e6119a74ab1b96298e96 /sys/arm | |
| parent | 8f11c997150d17d72a801874bd486aad1ef7c239 (diff) | |
| download | src-d9501cbab542bc875acba5396342a47b097e7e8d.tar.gz src-d9501cbab542bc875acba5396342a47b097e7e8d.zip | |
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
Notes
Notes:
svn path=/head/; revision=363645
Diffstat (limited to 'sys/arm')
| -rw-r--r-- | sys/arm/broadcom/bcm2835/bcm2835_firmware.h | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/sys/arm/broadcom/bcm2835/bcm2835_firmware.h b/sys/arm/broadcom/bcm2835/bcm2835_firmware.h index c88b03e62d38..666e450914f8 100644 --- a/sys/arm/broadcom/bcm2835/bcm2835_firmware.h +++ b/sys/arm/broadcom/bcm2835/bcm2835_firmware.h @@ -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 |