5016af53eb
Clean the hardware cursor handling up. The most notable change is that it no longer buffers the values in viacursor but uses the ones in cursor instead as they are guaranteed to be always valid. Furthermore it uses local instead global variables where possible, moves the cursor variable in shared as only one hardware cursor is supported and returns an error if memory allocation fails. Last but not least it fixes a too small buffer (as u32 has only 4 and not 32 bytes) but this did not produce any known problems. This is mostly a code cleanup, no negative runtime changes are expected. Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de> Cc: Scott Fang <ScottFang@viatech.com.cn> Cc: Joseph Chan <JosephChan@via.com.tw> Cc: Harald Welte <laforge@gnumonks.org> Cc: Jonathan Corbet <corbet@lwn.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
111 lines
3.7 KiB
C
111 lines
3.7 KiB
C
/*
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* Copyright 1998-2008 VIA Technologies, Inc. All Rights Reserved.
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* Copyright 2001-2008 S3 Graphics, Inc. All Rights Reserved.
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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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* 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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* 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 __VIAFBDEV_H__
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#define __VIAFBDEV_H__
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#include <linux/proc_fs.h>
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#include <linux/fb.h>
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#include "ioctl.h"
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#include "share.h"
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#include "chip.h"
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#include "hw.h"
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#include "via_i2c.h"
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#define VERSION_MAJOR 2
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#define VERSION_KERNEL 6 /* For kernel 2.6 */
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#define VERSION_OS 0 /* 0: for 32 bits OS, 1: for 64 bits OS */
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#define VERSION_MINOR 4
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struct viafb_shared {
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struct proc_dir_entry *proc_entry; /*viafb proc entry */
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/* I2C stuff */
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struct via_i2c_stuff i2c_stuff;
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/* All the information will be needed to set engine */
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struct tmds_setting_information tmds_setting_info;
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struct crt_setting_information crt_setting_info;
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struct lvds_setting_information lvds_setting_info;
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struct lvds_setting_information lvds_setting_info2;
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struct chip_information chip_info;
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/* hardware acceleration stuff */
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u32 cursor_vram_addr;
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int (*hw_bitblt)(void __iomem *engine, u8 op, u32 width, u32 height,
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u8 dst_bpp, u32 dst_addr, u32 dst_pitch, u32 dst_x, u32 dst_y,
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u32 *src_mem, u32 src_addr, u32 src_pitch, u32 src_x, u32 src_y,
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u32 fg_color, u32 bg_color, u8 fill_rop);
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};
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struct viafb_par {
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u8 depth;
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u32 vram_addr;
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void __iomem *io_virt; /*iospace virtual memory address */
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unsigned int fbmem; /*framebuffer physical memory address */
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unsigned int memsize; /*size of fbmem */
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u32 fbmem_free; /* Free FB memory */
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u32 fbmem_used; /* Use FB memory size */
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u32 VQ_start; /* Virtual Queue Start Address */
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u32 VQ_end; /* Virtual Queue End Address */
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u32 iga_path;
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struct viafb_shared *shared;
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/* All the information will be needed to set engine */
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/* depreciated, use the ones in shared directly */
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struct tmds_setting_information *tmds_setting_info;
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struct crt_setting_information *crt_setting_info;
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struct lvds_setting_information *lvds_setting_info;
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struct lvds_setting_information *lvds_setting_info2;
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struct chip_information *chip_info;
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};
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extern unsigned int viafb_second_virtual_yres;
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extern unsigned int viafb_second_virtual_xres;
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extern unsigned int viafb_second_offset;
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extern int viafb_second_size;
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extern int viafb_SAMM_ON;
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extern int viafb_dual_fb;
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extern int viafb_LCD2_ON;
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extern int viafb_LCD_ON;
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extern int viafb_DVI_ON;
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extern int viafb_accel;
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extern int viafb_hotplug;
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extern int viafb_memsize;
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extern int strict_strtoul(const char *cp, unsigned int base,
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unsigned long *res);
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void viafb_memory_pitch_patch(struct fb_info *info);
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void viafb_fill_var_timing_info(struct fb_var_screeninfo *var, int refresh,
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int mode_index);
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int viafb_get_mode_index(int hres, int vres);
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u8 viafb_gpio_i2c_read_lvds(struct lvds_setting_information
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*plvds_setting_info, struct lvds_chip_information
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*plvds_chip_info, u8 index);
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void viafb_gpio_i2c_write_mask_lvds(struct lvds_setting_information
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*plvds_setting_info, struct lvds_chip_information
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*plvds_chip_info, struct IODATA io_data);
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#endif /* __VIAFBDEV_H__ */
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