/* * linux/drivers/video/s3fb.c -- Frame buffer device driver for S3 Trio/Virge * * Copyright (c) 2006-2007 Ondrej Zajicek <[email protected]> * * This file is subject to the terms and conditions of the GNU General Public * License. See the file COPYING in the main directory of this archive for * more details. * * Code is based on David Boucher's viafb (http://davesdomain.org.uk/viafb/) * which is based on the code of neofb. */ #include <linux/aperture.h> #include <linux/module.h> #include <linux/kernel.h> #include <linux/errno.h> #include <linux/string.h> #include <linux/mm.h> #include <linux/tty.h> #include <linux/delay.h> #include <linux/fb.h> #include <linux/svga.h> #include <linux/init.h> #include <linux/pci.h> #include <linux/console.h> /* Why should fb driver call console functions? because console_lock() */ #include <video/vga.h> #include <linux/i2c.h> #include <linux/i2c-algo-bit.h> struct s3fb_info { … }; /* ------------------------------------------------------------------------- */ static const struct svga_fb_format s3fb_formats[] = …; static const struct svga_pll s3_pll = …; static const struct svga_pll s3_trio3d_pll = …; static const int s3_memsizes[] = …; static const char * const s3_names[] = …; #define CHIP_UNKNOWN … #define CHIP_732_TRIO32 … #define CHIP_764_TRIO64 … #define CHIP_765_TRIO64VP … #define CHIP_767_TRIO64UVP … #define CHIP_775_TRIO64V2_DX … #define CHIP_785_TRIO64V2_GX … #define CHIP_551_PLATO_PX … #define CHIP_M65_AURORA64VP … #define CHIP_325_VIRGE … #define CHIP_988_VIRGE_VX … #define CHIP_375_VIRGE_DX … #define CHIP_385_VIRGE_GX … #define CHIP_357_VIRGE_GX2 … #define CHIP_359_VIRGE_GX2P … #define CHIP_360_TRIO3D_1X … #define CHIP_362_TRIO3D_2X … #define CHIP_368_TRIO3D_2X … #define CHIP_365_TRIO3D … #define CHIP_260_VIRGE_MX … #define CHIP_XXX_TRIO … #define CHIP_XXX_TRIO64V2_DXGX … #define CHIP_XXX_VIRGE_DXGX … #define CHIP_36X_TRIO3D_1X_2X … #define CHIP_UNDECIDED_FLAG … #define CHIP_MASK … #define MMIO_OFFSET … #define MMIO_SIZE … /* CRT timing register sets */ static const struct vga_regset s3_h_total_regs[] = …; static const struct vga_regset s3_h_display_regs[] = …; static const struct vga_regset s3_h_blank_start_regs[] = …; static const struct vga_regset s3_h_blank_end_regs[] = …; static const struct vga_regset s3_h_sync_start_regs[] = …; static const struct vga_regset s3_h_sync_end_regs[] = …; static const struct vga_regset s3_v_total_regs[] = …; static const struct vga_regset s3_v_display_regs[] = …; static const struct vga_regset s3_v_blank_start_regs[] = …; static const struct vga_regset s3_v_blank_end_regs[] = …; static const struct vga_regset s3_v_sync_start_regs[] = …; static const struct vga_regset s3_v_sync_end_regs[] = …; static const struct vga_regset s3_line_compare_regs[] = …; static const struct vga_regset s3_start_address_regs[] = …; static const struct vga_regset s3_offset_regs[] = …; /* set 0x43 bit 2 to 0 */ static const struct vga_regset s3_dtpc_regs[] = …; static const struct svga_timing_regs s3_timing_regs = …; /* ------------------------------------------------------------------------- */ /* Module parameters */ static char *mode_option; static int mtrr = …; static int fasttext = …; MODULE_AUTHOR(…) …; MODULE_LICENSE(…) …; MODULE_DESCRIPTION(…) …; module_param(mode_option, charp, 0444); MODULE_PARM_DESC(…) …; module_param_named(mode, mode_option, charp, 0444); MODULE_PARM_DESC(…) …; module_param(mtrr, int, 0444); MODULE_PARM_DESC(…) …; module_param(fasttext, int, 0644); MODULE_PARM_DESC(…) …; /* ------------------------------------------------------------------------- */ #ifdef CONFIG_FB_S3_DDC #define DDC_REG … #define DDC_MMIO_REG … #define DDC_SCL_OUT … #define DDC_SDA_OUT … #define DDC_SCL_IN … #define DDC_SDA_IN … #define DDC_DRIVE_EN … static bool s3fb_ddc_needs_mmio(int chip) { … } static u8 s3fb_ddc_read(struct s3fb_info *par) { … } static void s3fb_ddc_write(struct s3fb_info *par, u8 val) { … } static void s3fb_ddc_setscl(void *data, int val) { … } static void s3fb_ddc_setsda(void *data, int val) { … } static int s3fb_ddc_getscl(void *data) { … } static int s3fb_ddc_getsda(void *data) { … } static int s3fb_setup_ddc_bus(struct fb_info *info) { … } #endif /* CONFIG_FB_S3_DDC */ /* ------------------------------------------------------------------------- */ /* Set font in S3 fast text mode */ static void s3fb_settile_fast(struct fb_info *info, struct fb_tilemap *map) { … } static void s3fb_tilecursor(struct fb_info *info, struct fb_tilecursor *cursor) { … } static struct fb_tile_ops s3fb_tile_ops = …; static struct fb_tile_ops s3fb_fast_tile_ops = …; /* ------------------------------------------------------------------------- */ /* image data is MSB-first, fb structure is MSB-first too */ static inline u32 expand_color(u32 c) { … } /* s3fb_iplan_imageblit silently assumes that almost everything is 8-pixel aligned */ static void s3fb_iplan_imageblit(struct fb_info *info, const struct fb_image *image) { … } /* s3fb_iplan_fillrect silently assumes that almost everything is 8-pixel aligned */ static void s3fb_iplan_fillrect(struct fb_info *info, const struct fb_fillrect *rect) { … } /* image data is MSB-first, fb structure is high-nibble-in-low-byte-first */ static inline u32 expand_pixel(u32 c) { … } /* s3fb_cfb4_imageblit silently assumes that almost everything is 8-pixel aligned */ static void s3fb_cfb4_imageblit(struct fb_info *info, const struct fb_image *image) { … } static void s3fb_imageblit(struct fb_info *info, const struct fb_image *image) { … } static void s3fb_fillrect(struct fb_info *info, const struct fb_fillrect *rect) { … } /* ------------------------------------------------------------------------- */ static void s3_set_pixclock(struct fb_info *info, u32 pixclock) { … } /* Open framebuffer */ static int s3fb_open(struct fb_info *info, int user) { … } /* Close framebuffer */ static int s3fb_release(struct fb_info *info, int user) { … } /* Validate passed in var */ static int s3fb_check_var(struct fb_var_screeninfo *var, struct fb_info *info) { … } /* Set video mode from par */ static int s3fb_set_par(struct fb_info *info) { … } /* Set a colour register */ static int s3fb_setcolreg(u_int regno, u_int red, u_int green, u_int blue, u_int transp, struct fb_info *fb) { … } /* Set the display blanking state */ static int s3fb_blank(int blank_mode, struct fb_info *info) { … } /* Pan the display */ static int s3fb_pan_display(struct fb_var_screeninfo *var, struct fb_info *info) { … } /* ------------------------------------------------------------------------- */ /* Frame buffer operations */ static const struct fb_ops s3fb_ops = …; /* ------------------------------------------------------------------------- */ static int s3_identification(struct s3fb_info *par) { … } /* PCI probe */ static int s3_pci_probe(struct pci_dev *dev, const struct pci_device_id *id) { … } /* PCI remove */ static void s3_pci_remove(struct pci_dev *dev) { … } /* PCI suspend */ static int __maybe_unused s3_pci_suspend(struct device *dev) { … } /* PCI resume */ static int __maybe_unused s3_pci_resume(struct device *dev) { … } static const struct dev_pm_ops s3_pci_pm_ops = …; /* List of boards that we are trying to support */ static const struct pci_device_id s3_devices[] = …; MODULE_DEVICE_TABLE(pci, s3_devices); static struct pci_driver s3fb_pci_driver = …; /* Parse user specified options */ #ifndef MODULE static int __init s3fb_setup(char *options) { … } #endif /* Cleanup */ static void __exit s3fb_cleanup(void) { … } /* Driver Initialisation */ static int __init s3fb_init(void) { … } /* ------------------------------------------------------------------------- */ /* Modularization */ module_init(…) …; module_exit(s3fb_cleanup);
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