forked from Minki/linux
d4cb2ee17d
There are a mix of function prototypes with and without extern in the kernel sources. Standardize on not using extern for function prototypes. Function prototypes don't need to be written with extern. extern is assumed by the compiler. Its use is as unnecessary as using auto to declare automatic/local variables in a block. Signed-off-by: Joe Perches <joe@perches.com>
83 lines
2.4 KiB
C
83 lines
2.4 KiB
C
/*
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* drivers/net/ethernet/ibm/emac/rgmii.h
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*
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* Driver for PowerPC 4xx on-chip ethernet controller, RGMII bridge support.
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*
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* Copyright 2007 Benjamin Herrenschmidt, IBM Corp.
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* <benh@kernel.crashing.org>
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*
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* Based on the arch/ppc version of the driver:
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*
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* Based on ocp_zmii.h/ibm_emac_zmii.h
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* Armin Kuster akuster@mvista.com
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*
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* Copyright 2004 MontaVista Software, Inc.
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* Matt Porter <mporter@kernel.crashing.org>
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*
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* Copyright (c) 2004, 2005 Zultys Technologies.
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* Eugene Surovegin <eugene.surovegin@zultys.com> or <ebs@ebshome.net>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version.
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*/
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#ifndef __IBM_NEWEMAC_RGMII_H
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#define __IBM_NEWEMAC_RGMII_H
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/* RGMII bridge type */
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#define RGMII_STANDARD 0
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#define RGMII_AXON 1
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/* RGMII bridge */
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struct rgmii_regs {
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u32 fer; /* Function enable register */
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u32 ssr; /* Speed select register */
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};
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/* RGMII device */
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struct rgmii_instance {
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struct rgmii_regs __iomem *base;
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/* RGMII bridge flags */
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int flags;
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#define EMAC_RGMII_FLAG_HAS_MDIO 0x00000001
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/* Only one EMAC whacks us at a time */
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struct mutex lock;
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/* number of EMACs using this RGMII bridge */
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int users;
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/* OF device instance */
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struct platform_device *ofdev;
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};
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#ifdef CONFIG_IBM_EMAC_RGMII
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int rgmii_init(void);
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void rgmii_exit(void);
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int rgmii_attach(struct platform_device *ofdev, int input, int mode);
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void rgmii_detach(struct platform_device *ofdev, int input);
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void rgmii_get_mdio(struct platform_device *ofdev, int input);
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void rgmii_put_mdio(struct platform_device *ofdev, int input);
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void rgmii_set_speed(struct platform_device *ofdev, int input, int speed);
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int rgmii_get_regs_len(struct platform_device *ofdev);
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void *rgmii_dump_regs(struct platform_device *ofdev, void *buf);
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#else
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# define rgmii_init() 0
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# define rgmii_exit() do { } while(0)
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# define rgmii_attach(x,y,z) (-ENXIO)
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# define rgmii_detach(x,y) do { } while(0)
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# define rgmii_get_mdio(o,i) do { } while (0)
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# define rgmii_put_mdio(o,i) do { } while (0)
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# define rgmii_set_speed(x,y,z) do { } while(0)
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# define rgmii_get_regs_len(x) 0
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# define rgmii_dump_regs(x,buf) (buf)
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#endif /* !CONFIG_IBM_EMAC_RGMII */
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#endif /* __IBM_NEWEMAC_RGMII_H */
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