1#- 2# Copyright 2016 Michal Meloun <mmel@FreeBSD.org> 3# All rights reserved. 4# 5# Redistribution and use in source and binary forms, with or without 6# modification, are permitted provided that the following conditions 7# are met: 8# 1. Redistributions of source code must retain the above copyright 9# notice, this list of conditions and the following disclaimer. 10# 2. Redistributions in binary form must reproduce the above copyright 11# notice, this list of conditions and the following disclaimer in the 12# documentation and/or other materials provided with the distribution. 13# 14# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24# SUCH DAMAGE. 25# 26# 27 28#include <machine/bus.h> 29 30INTERFACE clkdev; 31 32CODE { 33 #include <sys/systm.h> 34 #include <sys/bus.h> 35 static int 36 clkdev_default_write_4(device_t dev, bus_addr_t addr, uint32_t val) 37 { 38 device_t pdev; 39 40 pdev = device_get_parent(dev); 41 if (pdev == NULL) 42 return (ENXIO); 43 44 return (CLKDEV_WRITE_4(pdev, addr, val)); 45 } 46 47 static int 48 clkdev_default_read_4(device_t dev, bus_addr_t addr, uint32_t *val) 49 { 50 device_t pdev; 51 52 pdev = device_get_parent(dev); 53 if (pdev == NULL) 54 return (ENXIO); 55 56 return (CLKDEV_READ_4(pdev, addr, val)); 57 } 58 59 static int 60 clkdev_default_modify_4(device_t dev, bus_addr_t addr, 61 uint32_t clear_mask, uint32_t set_mask) 62 { 63 device_t pdev; 64 65 pdev = device_get_parent(dev); 66 if (pdev == NULL) 67 return (ENXIO); 68 69 return (CLKDEV_MODIFY_4(pdev, addr, clear_mask, set_mask)); 70 } 71 72 static void 73 clkdev_default_device_lock(device_t dev) 74 { 75 device_t pdev; 76 77 pdev = device_get_parent(dev); 78 if (pdev == NULL) 79 panic("clkdev_device_lock not implemented"); 80 81 CLKDEV_DEVICE_LOCK(pdev); 82 } 83 84 static void 85 clkdev_default_device_unlock(device_t dev) 86 { 87 device_t pdev; 88 89 pdev = device_get_parent(dev); 90 if (pdev == NULL) 91 panic("clkdev_device_unlock not implemented"); 92 93 CLKDEV_DEVICE_UNLOCK(pdev); 94 } 95} 96 97# 98# Write single register 99# 100METHOD int write_4 { 101 device_t dev; 102 bus_addr_t addr; 103 uint32_t val; 104} DEFAULT clkdev_default_write_4; 105 106# 107# Read single register 108# 109METHOD int read_4 { 110 device_t dev; 111 bus_addr_t addr; 112 uint32_t *val; 113} DEFAULT clkdev_default_read_4; 114 115# 116# Modify single register 117# 118METHOD int modify_4 { 119 device_t dev; 120 bus_addr_t addr; 121 uint32_t clear_mask; 122 uint32_t set_mask; 123} DEFAULT clkdev_default_modify_4; 124 125# 126# Get exclusive access to underlying device 127# 128METHOD void device_lock { 129 device_t dev; 130} DEFAULT clkdev_default_device_lock; 131 132# 133# Release exclusive access to underlying device 134# 135METHOD void device_unlock { 136 device_t dev; 137} DEFAULT clkdev_default_device_unlock; 138