FreeBSD/Linux Kernel Cross Reference
sys/dev/extres/clk/clk_link.c

     /*-
      * Copyright 2016 Michal Meloun <mmel@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.
     * 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.
     */
    
    #include <sys/cdefs.h>
    __FBSDID("$FreeBSD$");
    
    #include <sys/param.h>
    #include <sys/conf.h>
    #include <sys/bus.h>
    #include <sys/kernel.h>
    #include <sys/kobj.h>
    #include <sys/malloc.h>
    #include <sys/mutex.h>
    #include <sys/module.h>
    #include <sys/rman.h>
    #include <sys/systm.h>
    
    #include <machine/bus.h>
    
    #include <dev/extres/clk/clk_link.h>
    
    static int clknode_link_init(struct clknode *clk, device_t dev);
    static int clknode_link_recalc(struct clknode *clk, uint64_t *freq);
    static int clknode_link_set_freq(struct clknode *clk, uint64_t fin,
        uint64_t *fout, int flags, int *stop);
    static int clknode_link_set_mux(struct clknode *clk, int idx);
    static int clknode_link_set_gate(struct clknode *clk, bool enable);
    
    static clknode_method_t clknode_link_methods[] = {
            /* Device interface */
            CLKNODEMETHOD(clknode_init,        clknode_link_init),
            CLKNODEMETHOD(clknode_recalc_freq, clknode_link_recalc),
            CLKNODEMETHOD(clknode_set_freq,    clknode_link_set_freq),
            CLKNODEMETHOD(clknode_set_gate,    clknode_link_set_gate),
            CLKNODEMETHOD(clknode_set_mux,     clknode_link_set_mux),
            CLKNODEMETHOD_END
    };
    DEFINE_CLASS_1(clknode_link, clknode_link_class, clknode_link_methods,
       0, clknode_class);
    
    static int
    clknode_link_init(struct clknode *clk, device_t dev)
    {
            return(0);
    }
    
    static int
    clknode_link_recalc(struct clknode *clk, uint64_t *freq)
    {
    
            printf("%s: Attempt to use unresolved linked clock: %s\n", __func__,
                clknode_get_name(clk));
            return (EBADF);
    }
    
    static int
    clknode_link_set_freq(struct clknode *clk, uint64_t fin, uint64_t *fout,
        int flags, int *stop)
    {
    
            printf("%s: Attempt to use unresolved linked clock: %s\n", __func__,
                clknode_get_name(clk));
            return (EBADF);
    }
    
    static int
    clknode_link_set_mux(struct clknode *clk, int idx)
    {
    
            printf("%s: Attempt to use unresolved linked clock: %s\n", __func__,
                clknode_get_name(clk));
            return (EBADF);
    }
    
    static int
    clknode_link_set_gate(struct clknode *clk, bool enable)
   {
   
           printf("%s: Attempt to use unresolved linked clock: %s\n", __func__,
               clknode_get_name(clk));
           return (EBADF);
   }
   
   int
   clknode_link_register(struct clkdom *clkdom, struct clk_link_def *clkdef)
   {
           struct clknode *clk;
           struct clknode_init_def tmp;
   
           tmp = clkdef->clkdef;
           tmp.flags |= CLK_NODE_LINKED;
           clk = clknode_create(clkdom, &clknode_link_class, &tmp);
           if (clk == NULL)
                   return (1);
           clknode_register(clkdom, clk);
           return (0);
   }

Cache object: ba0a81aa0beef798849181bd24a7a476