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sys/dev/bhnd/cores/chipc/pwrctl/bhnd_pwrctlvar.h
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| /*- | |||||
| * Copyright (c) 2015-2016 Landon Fuller <landonf@FreeBSD.org> | |||||
| * 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, | |||||
| * without modification. | |||||
| * 2. Redistributions in binary form must reproduce at minimum a disclaimer | |||||
| * similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any | |||||
| * redistribution must be conditioned upon including a substantially | |||||
| * similar Disclaimer requirement for further binary redistribution. | |||||
| * | |||||
| * NO WARRANTY | |||||
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |||||
| * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |||||
| * LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY | |||||
| * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL | |||||
| * THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR 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 DAMAGES. | |||||
| * | |||||
| * $FreeBSD$ | |||||
| */ | |||||
| #ifndef _BHND_PWRCTL_BHND_PWRCTLVAR_H_ | |||||
| #define _BHND_PWRCTL_BHND_PWRCTLVAR_H_ | |||||
| #include <sys/param.h> | |||||
| #include <sys/bus.h> | |||||
| #include <sys/queue.h> | |||||
| /** | |||||
| * bhnd pwrctl device quirks. | |||||
| */ | |||||
| enum { | |||||
| /** No quirks */ | |||||
| PWRCTL_QUIRK_NONE = 0, | |||||
| /** | |||||
| * Early ChipCommon revisions do not support dynamic clock control | |||||
| */ | |||||
| PWRCTL_QUIRK_FIXED_CLK = (1 << 0), | |||||
| /** | |||||
| * On PCI (not PCIe) devices, early ChipCommon revisions | |||||
| * (rev <= 5) vend xtal/pll and clock config registers via the PCI | |||||
| * config space. | |||||
| * | |||||
| * Dynamic clock control is not supported on these devices. | |||||
| */ | |||||
| PWRCTL_QUIRK_PCICLK_CTL = (1 << 1) | PWRCTL_QUIRK_FIXED_CLK, | |||||
| /** | |||||
| * On earliy BCM4311, BCM4321, and BCM4716 PCI(e) devices, no ALP | |||||
| * clock is available, and the HT clock must be enabled. | |||||
| */ | |||||
| PWRCTL_QUIRK_FORCE_HT = (1 << 2), | |||||
| /** | |||||
| * ChipCommon revisions 6-9 use the slowclk register layout. | |||||
| */ | |||||
| PWRCTL_QUIRK_SLOWCLK_CTL = (1 << 3), | |||||
| /** | |||||
| * ChipCommon revisions 10-19 support the instaclk register layout. | |||||
| */ | |||||
| PWRCTL_QUIRK_INSTACLK_CTL = (1 << 4), | |||||
| }; | |||||
| /** | |||||
| * device clock reservation. | |||||
| */ | |||||
| struct bhnd_pwrctl_clkres { | |||||
| device_t owner; /**< bhnd(4) device holding this reservation */ | |||||
| bhnd_clock clock; /**< requested clock */ | |||||
| STAILQ_ENTRY(bhnd_pwrctl_clkres) cr_link; | |||||
| }; | |||||
| /** | |||||
| * bhnd pwrctl driver instance state. | |||||
| */ | |||||
| struct bhnd_pwrctl_softc { | |||||
| device_t dev; | |||||
| uint32_t quirks; | |||||
| device_t chipc_dev; /**< core device */ | |||||
| struct bhnd_resource *res; /**< core register block. */ | |||||
| struct mtx mtx; /**< state mutex */ | |||||
| /** active clock reservations */ | |||||
| STAILQ_HEAD(, bhnd_pwrctl_clkres) clkres_list; | |||||
| }; | |||||
| #define PWRCTL_LOCK_INIT(sc) \ | |||||
| mtx_init(&(sc)->mtx, device_get_nameunit((sc)->dev), \ | |||||
| "bhnd pwrctl driver lock", MTX_DEF) | |||||
| #define PWRCTL_LOCK(sc) mtx_lock(&(sc)->mtx) | |||||
| #define PWRCTL_UNLOCK(sc) mtx_unlock(&(sc)->mtx) | |||||
| #define PWRCTL_LOCK_ASSERT(sc, what) mtx_assert(&(sc)->mtx, what) | |||||
| #define PWRCTL_LOCK_DESTROY(sc) mtx_destroy(&(sc)->mtx) | |||||
| /* quirk convenience macro */ | |||||
| #define PWRCTL_QUIRK(_sc, _name) \ | |||||
| ((_sc)->quirks & PWRCTL_QUIRK_ ## _name) | |||||
| #define PWRCTL_ASSERT_QUIRK(_sc, name) \ | |||||
| KASSERT(PWRCTL_QUIRK((_sc), name), ("quirk " __STRING(_name) " not set")) | |||||
| #endif /* _BHND_PWRCTL_BHND_PWRCTLVAR_H_ */ | |||||