// SPDX-License-Identifier: GPL-2.0-only /* * Frame buffer driver for Trident TGUI, Blade and Image series * * Copyright 2001, 2002 - Jani Monoses <[email protected]> * Copyright 2009 Krzysztof Helt <[email protected]> * * CREDITS:(in order of appearance) * skeletonfb.c by Geert Uytterhoeven and other fb code in drivers/video * Special thanks ;) to Mattia Crivellini <[email protected]> * much inspired by the XFree86 4.x Trident driver sources * by Alan Hourihane the FreeVGA project * Francesco Salvestrini <[email protected]> XP support, * code, suggestions * TODO: * timing value tweaking so it looks good on every monitor in every mode */ #include <linux/aperture.h> #include <linux/module.h> #include <linux/fb.h> #include <linux/init.h> #include <linux/pci.h> #include <linux/slab.h> #include <linux/delay.h> #include <video/vga.h> #include <video/trident.h> #include <linux/i2c.h> #include <linux/i2c-algo-bit.h> struct tridentfb_par { … }; static struct fb_fix_screeninfo tridentfb_fix = …; /* defaults which are normally overriden by user values */ /* video mode */ static char *mode_option; static int bpp = …; static int noaccel; static int center; static int stretch; static int fp; static int crt; static int memsize; static int memdiff; static int nativex; module_param(mode_option, charp, 0); MODULE_PARM_DESC(…) …; module_param_named(mode, mode_option, charp, 0); MODULE_PARM_DESC(…) …; module_param(bpp, int, 0); module_param(center, int, 0); module_param(stretch, int, 0); module_param(noaccel, int, 0); module_param(memsize, int, 0); module_param(memdiff, int, 0); module_param(nativex, int, 0); module_param(fp, int, 0); MODULE_PARM_DESC(…) …; module_param(crt, int, 0); MODULE_PARM_DESC(…) …; static inline int is_oldclock(int id) { … } static inline int is_oldprotect(int id) { … } static inline int is_blade(int id) { … } static inline int is_xp(int id) { … } static inline int is3Dchip(int id) { … } static inline int iscyber(int id) { … } static inline void t_outb(struct tridentfb_par *p, u8 val, u16 reg) { … } static inline u8 t_inb(struct tridentfb_par *p, u16 reg) { … } static inline void writemmr(struct tridentfb_par *par, u16 r, u32 v) { … } static inline u32 readmmr(struct tridentfb_par *par, u16 r) { … } #define DDC_SDA_TGUI … #define DDC_SCL_TGUI … #define DDC_SCL_DRIVE_TGUI … #define DDC_SDA_DRIVE_TGUI … #define DDC_MASK_TGUI … static void tridentfb_ddc_setscl_tgui(void *data, int val) { … } static void tridentfb_ddc_setsda_tgui(void *data, int val) { … } static int tridentfb_ddc_getsda_tgui(void *data) { … } #define DDC_SDA_IN … #define DDC_SCL_OUT … #define DDC_SDA_OUT … #define DDC_SCL_IN … #define DDC_MASK … static void tridentfb_ddc_setscl(void *data, int val) { … } static void tridentfb_ddc_setsda(void *data, int val) { … } static int tridentfb_ddc_getscl(void *data) { … } static int tridentfb_ddc_getsda(void *data) { … } static int tridentfb_setup_ddc_bus(struct fb_info *info) { … } /* * Blade specific acceleration. */ #define point(x, y) … static void blade_init_accel(struct tridentfb_par *par, int pitch, int bpp) { … } static void blade_wait_engine(struct tridentfb_par *par) { … } static void blade_fill_rect(struct tridentfb_par *par, u32 x, u32 y, u32 w, u32 h, u32 c, u32 rop) { … } static void blade_image_blit(struct tridentfb_par *par, const char *data, u32 x, u32 y, u32 w, u32 h, u32 c, u32 b) { … } static void blade_copy_rect(struct tridentfb_par *par, u32 x1, u32 y1, u32 x2, u32 y2, u32 w, u32 h) { … } /* * BladeXP specific acceleration functions */ static void xp_init_accel(struct tridentfb_par *par, int pitch, int bpp) { … } static void xp_wait_engine(struct tridentfb_par *par) { … } static void xp_fill_rect(struct tridentfb_par *par, u32 x, u32 y, u32 w, u32 h, u32 c, u32 rop) { … } static void xp_copy_rect(struct tridentfb_par *par, u32 x1, u32 y1, u32 x2, u32 y2, u32 w, u32 h) { … } /* * Image specific acceleration functions */ static void image_init_accel(struct tridentfb_par *par, int pitch, int bpp) { … } static void image_wait_engine(struct tridentfb_par *par) { … } static void image_fill_rect(struct tridentfb_par *par, u32 x, u32 y, u32 w, u32 h, u32 c, u32 rop) { … } static void image_copy_rect(struct tridentfb_par *par, u32 x1, u32 y1, u32 x2, u32 y2, u32 w, u32 h) { … } /* * TGUI 9440/96XX acceleration */ static void tgui_init_accel(struct tridentfb_par *par, int pitch, int bpp) { … } static void tgui_fill_rect(struct tridentfb_par *par, u32 x, u32 y, u32 w, u32 h, u32 c, u32 rop) { … } static void tgui_copy_rect(struct tridentfb_par *par, u32 x1, u32 y1, u32 x2, u32 y2, u32 w, u32 h) { … } /* * Accel functions called by the upper layers */ static void tridentfb_fillrect(struct fb_info *info, const struct fb_fillrect *fr) { … } static void tridentfb_imageblit(struct fb_info *info, const struct fb_image *img) { … } static void tridentfb_copyarea(struct fb_info *info, const struct fb_copyarea *ca) { … } static int tridentfb_sync(struct fb_info *info) { … } /* * Hardware access functions */ static inline unsigned char read3X4(struct tridentfb_par *par, int reg) { … } static inline void write3X4(struct tridentfb_par *par, int reg, unsigned char val) { … } static inline unsigned char read3CE(struct tridentfb_par *par, unsigned char reg) { … } static inline void writeAttr(struct tridentfb_par *par, int reg, unsigned char val) { … } static inline void write3CE(struct tridentfb_par *par, int reg, unsigned char val) { … } static void enable_mmio(struct tridentfb_par *par) { … } static void disable_mmio(struct tridentfb_par *par) { … } static inline void crtc_unlock(struct tridentfb_par *par) { … } /* Return flat panel's maximum x resolution */ static int get_nativex(struct tridentfb_par *par) { … } /* Set pitch */ static inline void set_lwidth(struct tridentfb_par *par, int width) { … } /* For resolutions smaller than FP resolution stretch */ static void screen_stretch(struct tridentfb_par *par) { … } /* For resolutions smaller than FP resolution center */ static inline void screen_center(struct tridentfb_par *par) { … } /* Address of first shown pixel in display memory */ static void set_screen_start(struct tridentfb_par *par, int base) { … } /* Set dotclock frequency */ static void set_vclk(struct tridentfb_par *par, unsigned long freq) { … } /* Set number of lines for flat panels*/ static void set_number_of_lines(struct tridentfb_par *par, int lines) { … } /* * If we see that FP is active we assume we have one. * Otherwise we have a CRT display. User can override. */ static int is_flatpanel(struct tridentfb_par *par) { … } /* Try detecting the video memory size */ static unsigned int get_memsize(struct tridentfb_par *par) { … } /* See if we can handle the video mode described in var */ static int tridentfb_check_var(struct fb_var_screeninfo *var, struct fb_info *info) { … } /* Pan the display */ static int tridentfb_pan_display(struct fb_var_screeninfo *var, struct fb_info *info) { … } static inline void shadowmode_on(struct tridentfb_par *par) { … } /* Set the hardware to the requested video mode */ static int tridentfb_set_par(struct fb_info *info) { … } /* Set one color register */ static int tridentfb_setcolreg(unsigned regno, unsigned red, unsigned green, unsigned blue, unsigned transp, struct fb_info *info) { … } /* Try blanking the screen. For flat panels it does nothing */ static int tridentfb_blank(int blank_mode, struct fb_info *info) { … } static const struct fb_ops tridentfb_ops = …; static int trident_pci_probe(struct pci_dev *dev, const struct pci_device_id *id) { … } static void trident_pci_remove(struct pci_dev *dev) { … } /* List of boards that we are trying to support */ static const struct pci_device_id trident_devices[] = …; MODULE_DEVICE_TABLE(pci, trident_devices); static struct pci_driver tridentfb_pci_driver = …; /* * Parse user specified options (`video=trident:') * example: * video=trident:800x600,bpp=16,noaccel */ #ifndef MODULE static int __init tridentfb_setup(char *options) { … } #endif static int __init tridentfb_init(void) { … } static void __exit tridentfb_exit(void) { … } module_init(…) …; module_exit(tridentfb_exit); MODULE_AUTHOR(…) …; MODULE_DESCRIPTION(…) …; MODULE_LICENSE(…) …; MODULE_ALIAS(…) …;
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