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