90 lines
2.2 KiB
C
90 lines
2.2 KiB
C
/*
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* Copyright 1998-2009 VIA Technologies, Inc. All Rights Reserved.
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* Copyright 2001-2008 S3 Graphics, Inc. All Rights Reserved.
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* Copyright 2009 Jonathan Corbet <corbet@lwn.net>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public
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* License as published by the Free Software Foundation;
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* either version 2, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTIES OR REPRESENTATIONS; without even
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* the implied warranty of MERCHANTABILITY or FITNESS FOR
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* A PARTICULAR PURPOSE.See the GNU General Public License
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* for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc.,
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* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#ifndef __VIA_CORE_H__
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#define __VIA_CORE_H__
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#include <linux/spinlock.h>
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#include <linux/pci.h>
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/*
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* A description of each known serial I2C/GPIO port.
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*/
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enum via_port_type {
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VIA_PORT_NONE = 0,
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VIA_PORT_I2C,
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VIA_PORT_GPIO,
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};
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enum via_port_mode {
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VIA_MODE_OFF = 0,
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VIA_MODE_I2C, /* Used as I2C port */
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VIA_MODE_GPIO, /* Two GPIO ports */
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};
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enum viafb_i2c_adap {
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VIA_PORT_26 = 0,
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VIA_PORT_31,
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VIA_PORT_25,
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VIA_PORT_2C,
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VIA_PORT_3D,
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};
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#define VIAFB_NUM_PORTS 5
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struct via_port_cfg {
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enum via_port_type type;
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enum via_port_mode mode;
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u16 io_port;
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u8 ioport_index;
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};
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/*
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* This is the global viafb "device" containing stuff needed by
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* all subdevs.
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*/
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struct viafb_dev {
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struct pci_dev *pdev;
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int chip_type;
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/*
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* Spinlock for access to device registers. Not yet
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* globally used.
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*/
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spinlock_t reg_lock;
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/*
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* The framebuffer MMIO region. Little, if anything, touches
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* this memory directly, and certainly nothing outside of the
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* framebuffer device itself. We *do* have to be able to allocate
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* chunks of this memory for other devices, though.
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*/
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unsigned long fbmem_start;
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long fbmem_len;
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void __iomem *fbmem;
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/*
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* The MMIO region for device registers.
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*/
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unsigned long engine_start;
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unsigned long engine_len;
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void __iomem *engine_mmio;
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};
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#endif /* __VIA_CORE_H__ */
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