freebsd-skq/sys/arm/broadcom/bcm2835/bcm2835_mbox_prop.h
Rui Paulo b9450e431d Driver for CPU frequency/voltage control on the Raspberry Pi.
Differential Revision:	https://reviews.freebsd.org/D1025
Submitted by:	Daisuke Aoyama aoyama@peach.ne.jp
Reviewed by:	ian (earlier version), rpaulo
MFC after:	1 month
Relnotes:	yes
2014-12-20 19:15:10 +00:00

274 lines
6.2 KiB
C

/*-
* Copyright (C) 2013-2014 Daisuke Aoyama <aoyama@peach.ne.jp>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
#ifndef _BCM2835_MBOX_PROP_H_
#define _BCM2835_MBOX_PROP_H_
#include <sys/cdefs.h>
#include <sys/types.h>
/*
* Mailbox property interface:
* https://github.com/raspberrypi/firmware/wiki/Mailbox-property-interface
*/
#define BCM2835_MBOX_CODE_REQ 0
#define BCM2835_MBOX_CODE_RESP_SUCCESS 0x80000000
#define BCM2835_MBOX_CODE_RESP_ERROR 0x80000001
#define BCM2835_MBOX_TAG_VAL_LEN_RESPONSE 0x80000000
struct bcm2835_mbox_hdr {
uint32_t buf_size;
uint32_t code;
};
struct bcm2835_mbox_tag_hdr {
uint32_t tag;
uint32_t val_buf_size;
uint32_t val_len;
};
#define BCM2835_MBOX_CLOCK_ID_EMMC 0x00000001
#define BCM2835_MBOX_CLOCK_ID_UART 0x00000002
#define BCM2835_MBOX_CLOCK_ID_ARM 0x00000003
#define BCM2835_MBOX_CLOCK_ID_CORE 0x00000004
#define BCM2835_MBOX_CLOCK_ID_V3D 0x00000005
#define BCM2835_MBOX_CLOCK_ID_H264 0x00000006
#define BCM2835_MBOX_CLOCK_ID_ISP 0x00000007
#define BCM2835_MBOX_CLOCK_ID_SDRAM 0x00000008
#define BCM2835_MBOX_CLOCK_ID_PIXEL 0x00000009
#define BCM2835_MBOX_CLOCK_ID_PWM 0x0000000a
#define BCM2835_MBOX_TAG_GET_CLOCK_RATE 0x00030002
#define BCM2835_MBOX_TAG_SET_CLOCK_RATE 0x00038002
#define BCM2835_MBOX_TAG_GET_MAX_CLOCK_RATE 0x00030004
#define BCM2835_MBOX_TAG_GET_MIN_CLOCK_RATE 0x00030007
struct msg_get_clock_rate {
struct bcm2835_mbox_hdr hdr;
struct bcm2835_mbox_tag_hdr tag_hdr;
union {
struct {
uint32_t clock_id;
} req;
struct {
uint32_t clock_id;
uint32_t rate_hz;
} resp;
} body;
uint32_t end_tag;
};
struct msg_set_clock_rate {
struct bcm2835_mbox_hdr hdr;
struct bcm2835_mbox_tag_hdr tag_hdr;
union {
struct {
uint32_t clock_id;
uint32_t rate_hz;
} req;
struct {
uint32_t clock_id;
uint32_t rate_hz;
} resp;
} body;
uint32_t end_tag;
};
struct msg_get_max_clock_rate {
struct bcm2835_mbox_hdr hdr;
struct bcm2835_mbox_tag_hdr tag_hdr;
union {
struct {
uint32_t clock_id;
} req;
struct {
uint32_t clock_id;
uint32_t rate_hz;
} resp;
} body;
uint32_t end_tag;
};
struct msg_get_min_clock_rate {
struct bcm2835_mbox_hdr hdr;
struct bcm2835_mbox_tag_hdr tag_hdr;
union {
struct {
uint32_t clock_id;
} req;
struct {
uint32_t clock_id;
uint32_t rate_hz;
} resp;
} body;
uint32_t end_tag;
};
#define BCM2835_MBOX_TURBO_ON 1
#define BCM2835_MBOX_TURBO_OFF 0
#define BCM2835_MBOX_TAG_GET_TURBO 0x00030009
#define BCM2835_MBOX_TAG_SET_TURBO 0x00038009
struct msg_get_turbo {
struct bcm2835_mbox_hdr hdr;
struct bcm2835_mbox_tag_hdr tag_hdr;
union {
struct {
uint32_t id;
} req;
struct {
uint32_t id;
uint32_t level;
} resp;
} body;
uint32_t end_tag;
};
struct msg_set_turbo {
struct bcm2835_mbox_hdr hdr;
struct bcm2835_mbox_tag_hdr tag_hdr;
union {
struct {
uint32_t id;
uint32_t level;
} req;
struct {
uint32_t id;
uint32_t level;
} resp;
} body;
uint32_t end_tag;
};
#define BCM2835_MBOX_VOLTAGE_ID_CORE 0x00000001
#define BCM2835_MBOX_VOLTAGE_ID_SDRAM_C 0x00000002
#define BCM2835_MBOX_VOLTAGE_ID_SDRAM_P 0x00000003
#define BCM2835_MBOX_VOLTAGE_ID_SDRAM_I 0x00000004
#define BCM2835_MBOX_TAG_GET_VOLTAGE 0x00030003
#define BCM2835_MBOX_TAG_SET_VOLTAGE 0x00038003
#define BCM2835_MBOX_TAG_GET_MAX_VOLTAGE 0x00030005
#define BCM2835_MBOX_TAG_GET_MIN_VOLTAGE 0x00030008
struct msg_get_voltage {
struct bcm2835_mbox_hdr hdr;
struct bcm2835_mbox_tag_hdr tag_hdr;
union {
struct {
uint32_t voltage_id;
} req;
struct {
uint32_t voltage_id;
uint32_t value;
} resp;
} body;
uint32_t end_tag;
};
struct msg_set_voltage {
struct bcm2835_mbox_hdr hdr;
struct bcm2835_mbox_tag_hdr tag_hdr;
union {
struct {
uint32_t voltage_id;
uint32_t value;
} req;
struct {
uint32_t voltage_id;
uint32_t value;
} resp;
} body;
uint32_t end_tag;
};
struct msg_get_max_voltage {
struct bcm2835_mbox_hdr hdr;
struct bcm2835_mbox_tag_hdr tag_hdr;
union {
struct {
uint32_t voltage_id;
} req;
struct {
uint32_t voltage_id;
uint32_t value;
} resp;
} body;
uint32_t end_tag;
};
struct msg_get_min_voltage {
struct bcm2835_mbox_hdr hdr;
struct bcm2835_mbox_tag_hdr tag_hdr;
union {
struct {
uint32_t voltage_id;
} req;
struct {
uint32_t voltage_id;
uint32_t value;
} resp;
} body;
uint32_t end_tag;
};
#define BCM2835_MBOX_TAG_GET_TEMPERATURE 0x00030006
#define BCM2835_MBOX_TAG_GET_MAX_TEMPERATURE 0x0003000a
struct msg_get_temperature {
struct bcm2835_mbox_hdr hdr;
struct bcm2835_mbox_tag_hdr tag_hdr;
union {
struct {
uint32_t temperature_id;
} req;
struct {
uint32_t temperature_id;
uint32_t value;
} resp;
} body;
uint32_t end_tag;
};
struct msg_get_max_temperature {
struct bcm2835_mbox_hdr hdr;
struct bcm2835_mbox_tag_hdr tag_hdr;
union {
struct {
uint32_t temperature_id;
} req;
struct {
uint32_t temperature_id;
uint32_t value;
} resp;
} body;
uint32_t end_tag;
};
#endif /* _BCM2835_MBOX_PROP_H_ */