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![Adrian Bunk](/assets/img/avatar_default.png)
NULL checks should be before the first dereference. Spotted by the Coverity checker. Signed-off-by: Adrian Bunk <bunk@stusta.de> Acked-by: Ondrej Zajicek <santiago@crfreenet.org> Cc: "Antonino A. Daplas" <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
1181 lines
31 KiB
C
1181 lines
31 KiB
C
/*
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* linux/drivers/video/s3fb.c -- Frame buffer device driver for S3 Trio/Virge
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*
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* Copyright (c) 2006-2007 Ondrej Zajicek <santiago@crfreenet.org>
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*
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* This file is subject to the terms and conditions of the GNU General Public
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* License. See the file COPYING in the main directory of this archive for
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* more details.
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*
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* Code is based on David Boucher's viafb (http://davesdomain.org.uk/viafb/)
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* which is based on the code of neofb.
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*/
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#include <linux/version.h>
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#include <linux/module.h>
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#include <linux/kernel.h>
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#include <linux/errno.h>
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#include <linux/string.h>
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#include <linux/mm.h>
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#include <linux/tty.h>
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#include <linux/slab.h>
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#include <linux/delay.h>
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#include <linux/fb.h>
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#include <linux/svga.h>
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#include <linux/init.h>
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#include <linux/pci.h>
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#include <linux/console.h> /* Why should fb driver call console functions? because acquire_console_sem() */
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#include <video/vga.h>
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#ifdef CONFIG_MTRR
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#include <asm/mtrr.h>
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#endif
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struct s3fb_info {
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int chip, rev, mclk_freq;
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int mtrr_reg;
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struct vgastate state;
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struct mutex open_lock;
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unsigned int ref_count;
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u32 pseudo_palette[16];
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};
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/* ------------------------------------------------------------------------- */
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static const struct svga_fb_format s3fb_formats[] = {
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{ 0, {0, 6, 0}, {0, 6, 0}, {0, 6, 0}, {0, 0, 0}, 0,
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FB_TYPE_TEXT, FB_AUX_TEXT_SVGA_STEP4, FB_VISUAL_PSEUDOCOLOR, 8, 16},
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{ 4, {0, 6, 0}, {0, 6, 0}, {0, 6, 0}, {0, 0, 0}, 0,
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FB_TYPE_PACKED_PIXELS, 0, FB_VISUAL_PSEUDOCOLOR, 8, 16},
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{ 4, {0, 6, 0}, {0, 6, 0}, {0, 6, 0}, {0, 0, 0}, 1,
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FB_TYPE_INTERLEAVED_PLANES, 1, FB_VISUAL_PSEUDOCOLOR, 8, 16},
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{ 8, {0, 6, 0}, {0, 6, 0}, {0, 6, 0}, {0, 0, 0}, 0,
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FB_TYPE_PACKED_PIXELS, 0, FB_VISUAL_PSEUDOCOLOR, 4, 8},
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{16, {10, 5, 0}, {5, 5, 0}, {0, 5, 0}, {0, 0, 0}, 0,
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FB_TYPE_PACKED_PIXELS, 0, FB_VISUAL_TRUECOLOR, 2, 4},
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{16, {11, 5, 0}, {5, 6, 0}, {0, 5, 0}, {0, 0, 0}, 0,
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FB_TYPE_PACKED_PIXELS, 0, FB_VISUAL_TRUECOLOR, 2, 4},
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{24, {16, 8, 0}, {8, 8, 0}, {0, 8, 0}, {0, 0, 0}, 0,
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FB_TYPE_PACKED_PIXELS, 0, FB_VISUAL_TRUECOLOR, 1, 2},
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{32, {16, 8, 0}, {8, 8, 0}, {0, 8, 0}, {0, 0, 0}, 0,
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FB_TYPE_PACKED_PIXELS, 0, FB_VISUAL_TRUECOLOR, 1, 2},
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SVGA_FORMAT_END
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};
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static const struct svga_pll s3_pll = {3, 129, 3, 33, 0, 3,
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60000, 240000, 14318};
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static const int s3_memsizes[] = {4096, 0, 3072, 8192, 2048, 6144, 1024, 512};
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static const char * const s3_names[] = {"S3 Unknown", "S3 Trio32", "S3 Trio64", "S3 Trio64V+",
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"S3 Trio64UV+", "S3 Trio64V2/DX", "S3 Trio64V2/GX",
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"S3 Plato/PX", "S3 Aurora64VP", "S3 Virge",
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"S3 Virge/VX", "S3 Virge/DX", "S3 Virge/GX",
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"S3 Virge/GX2", "S3 Virge/GX2P", "S3 Virge/GX2P"};
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#define CHIP_UNKNOWN 0x00
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#define CHIP_732_TRIO32 0x01
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#define CHIP_764_TRIO64 0x02
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#define CHIP_765_TRIO64VP 0x03
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#define CHIP_767_TRIO64UVP 0x04
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#define CHIP_775_TRIO64V2_DX 0x05
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#define CHIP_785_TRIO64V2_GX 0x06
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#define CHIP_551_PLATO_PX 0x07
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#define CHIP_M65_AURORA64VP 0x08
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#define CHIP_325_VIRGE 0x09
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#define CHIP_988_VIRGE_VX 0x0A
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#define CHIP_375_VIRGE_DX 0x0B
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#define CHIP_385_VIRGE_GX 0x0C
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#define CHIP_356_VIRGE_GX2 0x0D
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#define CHIP_357_VIRGE_GX2P 0x0E
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#define CHIP_359_VIRGE_GX2P 0x0F
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#define CHIP_XXX_TRIO 0x80
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#define CHIP_XXX_TRIO64V2_DXGX 0x81
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#define CHIP_XXX_VIRGE_DXGX 0x82
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#define CHIP_UNDECIDED_FLAG 0x80
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#define CHIP_MASK 0xFF
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/* CRT timing register sets */
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static const struct vga_regset s3_h_total_regs[] = {{0x00, 0, 7}, {0x5D, 0, 0}, VGA_REGSET_END};
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static const struct vga_regset s3_h_display_regs[] = {{0x01, 0, 7}, {0x5D, 1, 1}, VGA_REGSET_END};
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static const struct vga_regset s3_h_blank_start_regs[] = {{0x02, 0, 7}, {0x5D, 2, 2}, VGA_REGSET_END};
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static const struct vga_regset s3_h_blank_end_regs[] = {{0x03, 0, 4}, {0x05, 7, 7}, VGA_REGSET_END};
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static const struct vga_regset s3_h_sync_start_regs[] = {{0x04, 0, 7}, {0x5D, 4, 4}, VGA_REGSET_END};
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static const struct vga_regset s3_h_sync_end_regs[] = {{0x05, 0, 4}, VGA_REGSET_END};
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static const struct vga_regset s3_v_total_regs[] = {{0x06, 0, 7}, {0x07, 0, 0}, {0x07, 5, 5}, {0x5E, 0, 0}, VGA_REGSET_END};
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static const struct vga_regset s3_v_display_regs[] = {{0x12, 0, 7}, {0x07, 1, 1}, {0x07, 6, 6}, {0x5E, 1, 1}, VGA_REGSET_END};
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static const struct vga_regset s3_v_blank_start_regs[] = {{0x15, 0, 7}, {0x07, 3, 3}, {0x09, 5, 5}, {0x5E, 2, 2}, VGA_REGSET_END};
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static const struct vga_regset s3_v_blank_end_regs[] = {{0x16, 0, 7}, VGA_REGSET_END};
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static const struct vga_regset s3_v_sync_start_regs[] = {{0x10, 0, 7}, {0x07, 2, 2}, {0x07, 7, 7}, {0x5E, 4, 4}, VGA_REGSET_END};
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static const struct vga_regset s3_v_sync_end_regs[] = {{0x11, 0, 3}, VGA_REGSET_END};
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static const struct vga_regset s3_line_compare_regs[] = {{0x18, 0, 7}, {0x07, 4, 4}, {0x09, 6, 6}, {0x5E, 6, 6}, VGA_REGSET_END};
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static const struct vga_regset s3_start_address_regs[] = {{0x0d, 0, 7}, {0x0c, 0, 7}, {0x31, 4, 5}, {0x51, 0, 1}, VGA_REGSET_END};
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static const struct vga_regset s3_offset_regs[] = {{0x13, 0, 7}, {0x51, 4, 5}, VGA_REGSET_END}; /* set 0x43 bit 2 to 0 */
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static const struct svga_timing_regs s3_timing_regs = {
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s3_h_total_regs, s3_h_display_regs, s3_h_blank_start_regs,
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s3_h_blank_end_regs, s3_h_sync_start_regs, s3_h_sync_end_regs,
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s3_v_total_regs, s3_v_display_regs, s3_v_blank_start_regs,
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s3_v_blank_end_regs, s3_v_sync_start_regs, s3_v_sync_end_regs,
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};
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/* ------------------------------------------------------------------------- */
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/* Module parameters */
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static char *mode = "640x480-8@60";
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#ifdef CONFIG_MTRR
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static int mtrr = 1;
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#endif
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static int fasttext = 1;
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MODULE_AUTHOR("(c) 2006-2007 Ondrej Zajicek <santiago@crfreenet.org>");
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MODULE_LICENSE("GPL");
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MODULE_DESCRIPTION("fbdev driver for S3 Trio/Virge");
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module_param(mode, charp, 0444);
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MODULE_PARM_DESC(mode, "Default video mode ('640x480-8@60', etc)");
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#ifdef CONFIG_MTRR
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module_param(mtrr, int, 0444);
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MODULE_PARM_DESC(mtrr, "Enable write-combining with MTRR (1=enable, 0=disable, default=1)");
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#endif
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module_param(fasttext, int, 0644);
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MODULE_PARM_DESC(fasttext, "Enable S3 fast text mode (1=enable, 0=disable, default=1)");
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/* ------------------------------------------------------------------------- */
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/* Set font in S3 fast text mode */
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static void s3fb_settile_fast(struct fb_info *info, struct fb_tilemap *map)
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{
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const u8 *font = map->data;
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u8* fb = (u8 *) info->screen_base;
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int i, c;
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if ((map->width != 8) || (map->height != 16) ||
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(map->depth != 1) || (map->length != 256)) {
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printk(KERN_ERR "fb%d: unsupported font parameters: width %d, height %d, depth %d, length %d\n",
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info->node, map->width, map->height, map->depth, map->length);
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return;
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}
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fb += 2;
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for (i = 0; i < map->height; i++) {
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for (c = 0; c < map->length; c++) {
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fb[c * 4] = font[c * map->height + i];
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}
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fb += 1024;
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}
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}
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static struct fb_tile_ops s3fb_tile_ops = {
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.fb_settile = svga_settile,
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.fb_tilecopy = svga_tilecopy,
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.fb_tilefill = svga_tilefill,
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.fb_tileblit = svga_tileblit,
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.fb_tilecursor = svga_tilecursor,
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};
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static struct fb_tile_ops s3fb_fast_tile_ops = {
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.fb_settile = s3fb_settile_fast,
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.fb_tilecopy = svga_tilecopy,
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.fb_tilefill = svga_tilefill,
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.fb_tileblit = svga_tileblit,
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.fb_tilecursor = svga_tilecursor,
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};
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/* ------------------------------------------------------------------------- */
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/* image data is MSB-first, fb structure is MSB-first too */
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static inline u32 expand_color(u32 c)
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{
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return ((c & 1) | ((c & 2) << 7) | ((c & 4) << 14) | ((c & 8) << 21)) * 0xFF;
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}
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/* s3fb_iplan_imageblit silently assumes that almost everything is 8-pixel aligned */
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static void s3fb_iplan_imageblit(struct fb_info *info, const struct fb_image *image)
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{
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u32 fg = expand_color(image->fg_color);
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u32 bg = expand_color(image->bg_color);
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const u8 *src1, *src;
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u8 __iomem *dst1;
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u32 __iomem *dst;
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u32 val;
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int x, y;
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src1 = image->data;
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dst1 = info->screen_base + (image->dy * info->fix.line_length)
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+ ((image->dx / 8) * 4);
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for (y = 0; y < image->height; y++) {
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src = src1;
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dst = (u32 __iomem *) dst1;
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for (x = 0; x < image->width; x += 8) {
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val = *(src++) * 0x01010101;
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val = (val & fg) | (~val & bg);
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fb_writel(val, dst++);
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}
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src1 += image->width / 8;
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dst1 += info->fix.line_length;
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}
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}
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/* s3fb_iplan_fillrect silently assumes that almost everything is 8-pixel aligned */
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static void s3fb_iplan_fillrect(struct fb_info *info, const struct fb_fillrect *rect)
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{
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u32 fg = expand_color(rect->color);
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u8 __iomem *dst1;
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u32 __iomem *dst;
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int x, y;
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dst1 = info->screen_base + (rect->dy * info->fix.line_length)
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+ ((rect->dx / 8) * 4);
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for (y = 0; y < rect->height; y++) {
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dst = (u32 __iomem *) dst1;
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for (x = 0; x < rect->width; x += 8) {
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fb_writel(fg, dst++);
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}
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dst1 += info->fix.line_length;
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}
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}
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/* image data is MSB-first, fb structure is high-nibble-in-low-byte-first */
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static inline u32 expand_pixel(u32 c)
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{
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return (((c & 1) << 24) | ((c & 2) << 27) | ((c & 4) << 14) | ((c & 8) << 17) |
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((c & 16) << 4) | ((c & 32) << 7) | ((c & 64) >> 6) | ((c & 128) >> 3)) * 0xF;
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}
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/* s3fb_cfb4_imageblit silently assumes that almost everything is 8-pixel aligned */
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static void s3fb_cfb4_imageblit(struct fb_info *info, const struct fb_image *image)
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{
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u32 fg = image->fg_color * 0x11111111;
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u32 bg = image->bg_color * 0x11111111;
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const u8 *src1, *src;
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u8 __iomem *dst1;
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u32 __iomem *dst;
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u32 val;
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int x, y;
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src1 = image->data;
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dst1 = info->screen_base + (image->dy * info->fix.line_length)
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+ ((image->dx / 8) * 4);
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for (y = 0; y < image->height; y++) {
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src = src1;
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dst = (u32 __iomem *) dst1;
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for (x = 0; x < image->width; x += 8) {
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val = expand_pixel(*(src++));
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val = (val & fg) | (~val & bg);
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fb_writel(val, dst++);
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}
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src1 += image->width / 8;
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dst1 += info->fix.line_length;
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}
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}
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static void s3fb_imageblit(struct fb_info *info, const struct fb_image *image)
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{
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if ((info->var.bits_per_pixel == 4) && (image->depth == 1)
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&& ((image->width % 8) == 0) && ((image->dx % 8) == 0)) {
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if (info->fix.type == FB_TYPE_INTERLEAVED_PLANES)
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s3fb_iplan_imageblit(info, image);
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else
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s3fb_cfb4_imageblit(info, image);
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} else
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cfb_imageblit(info, image);
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}
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static void s3fb_fillrect(struct fb_info *info, const struct fb_fillrect *rect)
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{
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if ((info->var.bits_per_pixel == 4)
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&& ((rect->width % 8) == 0) && ((rect->dx % 8) == 0)
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&& (info->fix.type == FB_TYPE_INTERLEAVED_PLANES))
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s3fb_iplan_fillrect(info, rect);
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else
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cfb_fillrect(info, rect);
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}
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/* ------------------------------------------------------------------------- */
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static void s3_set_pixclock(struct fb_info *info, u32 pixclock)
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{
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u16 m, n, r;
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u8 regval;
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svga_compute_pll(&s3_pll, 1000000000 / pixclock, &m, &n, &r, info->node);
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/* Set VGA misc register */
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regval = vga_r(NULL, VGA_MIS_R);
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vga_w(NULL, VGA_MIS_W, regval | VGA_MIS_ENB_PLL_LOAD);
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/* Set S3 clock registers */
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vga_wseq(NULL, 0x12, ((n - 2) | (r << 5)));
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vga_wseq(NULL, 0x13, m - 2);
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udelay(1000);
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/* Activate clock - write 0, 1, 0 to seq/15 bit 5 */
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regval = vga_rseq (NULL, 0x15); /* | 0x80; */
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vga_wseq(NULL, 0x15, regval & ~(1<<5));
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vga_wseq(NULL, 0x15, regval | (1<<5));
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vga_wseq(NULL, 0x15, regval & ~(1<<5));
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}
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/* Open framebuffer */
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static int s3fb_open(struct fb_info *info, int user)
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{
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struct s3fb_info *par = info->par;
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mutex_lock(&(par->open_lock));
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if (par->ref_count == 0) {
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memset(&(par->state), 0, sizeof(struct vgastate));
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par->state.flags = VGA_SAVE_MODE | VGA_SAVE_FONTS | VGA_SAVE_CMAP;
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par->state.num_crtc = 0x70;
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par->state.num_seq = 0x20;
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save_vga(&(par->state));
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}
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par->ref_count++;
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mutex_unlock(&(par->open_lock));
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return 0;
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}
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/* Close framebuffer */
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static int s3fb_release(struct fb_info *info, int user)
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{
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struct s3fb_info *par = info->par;
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mutex_lock(&(par->open_lock));
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if (par->ref_count == 0) {
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mutex_unlock(&(par->open_lock));
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return -EINVAL;
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}
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if (par->ref_count == 1)
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restore_vga(&(par->state));
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par->ref_count--;
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mutex_unlock(&(par->open_lock));
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return 0;
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}
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/* Validate passed in var */
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static int s3fb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
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{
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struct s3fb_info *par = info->par;
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int rv, mem, step;
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/* Find appropriate format */
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rv = svga_match_format (s3fb_formats, var, NULL);
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if ((rv < 0) || ((par->chip == CHIP_988_VIRGE_VX) ? (rv == 7) : (rv == 6)))
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{ /* 24bpp on VIRGE VX, 32bpp on others */
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printk(KERN_ERR "fb%d: unsupported mode requested\n", info->node);
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return rv;
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}
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/* Do not allow to have real resoulution larger than virtual */
|
|
if (var->xres > var->xres_virtual)
|
|
var->xres_virtual = var->xres;
|
|
|
|
if (var->yres > var->yres_virtual)
|
|
var->yres_virtual = var->yres;
|
|
|
|
/* Round up xres_virtual to have proper alignment of lines */
|
|
step = s3fb_formats[rv].xresstep - 1;
|
|
var->xres_virtual = (var->xres_virtual+step) & ~step;
|
|
|
|
/* Check whether have enough memory */
|
|
mem = ((var->bits_per_pixel * var->xres_virtual) >> 3) * var->yres_virtual;
|
|
if (mem > info->screen_size)
|
|
{
|
|
printk(KERN_ERR "fb%d: not enough framebuffer memory (%d kB requested , %d kB available)\n",
|
|
info->node, mem >> 10, (unsigned int) (info->screen_size >> 10));
|
|
return -EINVAL;
|
|
}
|
|
|
|
rv = svga_check_timings (&s3_timing_regs, var, info->node);
|
|
if (rv < 0)
|
|
{
|
|
printk(KERN_ERR "fb%d: invalid timings requested\n", info->node);
|
|
return rv;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* Set video mode from par */
|
|
|
|
static int s3fb_set_par(struct fb_info *info)
|
|
{
|
|
struct s3fb_info *par = info->par;
|
|
u32 value, mode, hmul, offset_value, screen_size, multiplex;
|
|
u32 bpp = info->var.bits_per_pixel;
|
|
|
|
if (bpp != 0) {
|
|
info->fix.ypanstep = 1;
|
|
info->fix.line_length = (info->var.xres_virtual * bpp) / 8;
|
|
|
|
info->flags &= ~FBINFO_MISC_TILEBLITTING;
|
|
info->tileops = NULL;
|
|
|
|
offset_value = (info->var.xres_virtual * bpp) / 64;
|
|
screen_size = info->var.yres_virtual * info->fix.line_length;
|
|
} else {
|
|
info->fix.ypanstep = 16;
|
|
info->fix.line_length = 0;
|
|
|
|
info->flags |= FBINFO_MISC_TILEBLITTING;
|
|
info->tileops = fasttext ? &s3fb_fast_tile_ops : &s3fb_tile_ops;
|
|
|
|
offset_value = info->var.xres_virtual / 16;
|
|
screen_size = (info->var.xres_virtual * info->var.yres_virtual) / 64;
|
|
}
|
|
|
|
info->var.xoffset = 0;
|
|
info->var.yoffset = 0;
|
|
info->var.activate = FB_ACTIVATE_NOW;
|
|
|
|
/* Unlock registers */
|
|
vga_wcrt(NULL, 0x38, 0x48);
|
|
vga_wcrt(NULL, 0x39, 0xA5);
|
|
vga_wseq(NULL, 0x08, 0x06);
|
|
svga_wcrt_mask(0x11, 0x00, 0x80);
|
|
|
|
/* Blank screen and turn off sync */
|
|
svga_wseq_mask(0x01, 0x20, 0x20);
|
|
svga_wcrt_mask(0x17, 0x00, 0x80);
|
|
|
|
/* Set default values */
|
|
svga_set_default_gfx_regs();
|
|
svga_set_default_atc_regs();
|
|
svga_set_default_seq_regs();
|
|
svga_set_default_crt_regs();
|
|
svga_wcrt_multi(s3_line_compare_regs, 0xFFFFFFFF);
|
|
svga_wcrt_multi(s3_start_address_regs, 0);
|
|
|
|
/* S3 specific initialization */
|
|
svga_wcrt_mask(0x58, 0x10, 0x10); /* enable linear framebuffer */
|
|
svga_wcrt_mask(0x31, 0x08, 0x08); /* enable sequencer access to framebuffer above 256 kB */
|
|
|
|
/* svga_wcrt_mask(0x33, 0x08, 0x08); */ /* DDR ? */
|
|
/* svga_wcrt_mask(0x43, 0x01, 0x01); */ /* DDR ? */
|
|
svga_wcrt_mask(0x33, 0x00, 0x08); /* no DDR ? */
|
|
svga_wcrt_mask(0x43, 0x00, 0x01); /* no DDR ? */
|
|
|
|
svga_wcrt_mask(0x5D, 0x00, 0x28); // Clear strange HSlen bits
|
|
|
|
/* svga_wcrt_mask(0x58, 0x03, 0x03); */
|
|
|
|
/* svga_wcrt_mask(0x53, 0x12, 0x13); */ /* enable MMIO */
|
|
/* svga_wcrt_mask(0x40, 0x08, 0x08); */ /* enable write buffer */
|
|
|
|
|
|
/* Set the offset register */
|
|
pr_debug("fb%d: offset register : %d\n", info->node, offset_value);
|
|
svga_wcrt_multi(s3_offset_regs, offset_value);
|
|
|
|
vga_wcrt(NULL, 0x54, 0x18); /* M parameter */
|
|
vga_wcrt(NULL, 0x60, 0xff); /* N parameter */
|
|
vga_wcrt(NULL, 0x61, 0xff); /* L parameter */
|
|
vga_wcrt(NULL, 0x62, 0xff); /* L parameter */
|
|
|
|
vga_wcrt(NULL, 0x3A, 0x35);
|
|
svga_wattr(0x33, 0x00);
|
|
|
|
if (info->var.vmode & FB_VMODE_DOUBLE)
|
|
svga_wcrt_mask(0x09, 0x80, 0x80);
|
|
else
|
|
svga_wcrt_mask(0x09, 0x00, 0x80);
|
|
|
|
if (info->var.vmode & FB_VMODE_INTERLACED)
|
|
svga_wcrt_mask(0x42, 0x20, 0x20);
|
|
else
|
|
svga_wcrt_mask(0x42, 0x00, 0x20);
|
|
|
|
/* Disable hardware graphics cursor */
|
|
svga_wcrt_mask(0x45, 0x00, 0x01);
|
|
/* Disable Streams engine */
|
|
svga_wcrt_mask(0x67, 0x00, 0x0C);
|
|
|
|
mode = svga_match_format(s3fb_formats, &(info->var), &(info->fix));
|
|
|
|
/* S3 virge DX hack */
|
|
if (par->chip == CHIP_375_VIRGE_DX) {
|
|
vga_wcrt(NULL, 0x86, 0x80);
|
|
vga_wcrt(NULL, 0x90, 0x00);
|
|
}
|
|
|
|
/* S3 virge VX hack */
|
|
if (par->chip == CHIP_988_VIRGE_VX) {
|
|
vga_wcrt(NULL, 0x50, 0x00);
|
|
vga_wcrt(NULL, 0x67, 0x50);
|
|
|
|
vga_wcrt(NULL, 0x63, (mode <= 2) ? 0x90 : 0x09);
|
|
vga_wcrt(NULL, 0x66, 0x90);
|
|
}
|
|
|
|
svga_wcrt_mask(0x31, 0x00, 0x40);
|
|
multiplex = 0;
|
|
hmul = 1;
|
|
|
|
/* Set mode-specific register values */
|
|
switch (mode) {
|
|
case 0:
|
|
pr_debug("fb%d: text mode\n", info->node);
|
|
svga_set_textmode_vga_regs();
|
|
|
|
/* Set additional registers like in 8-bit mode */
|
|
svga_wcrt_mask(0x50, 0x00, 0x30);
|
|
svga_wcrt_mask(0x67, 0x00, 0xF0);
|
|
|
|
/* Disable enhanced mode */
|
|
svga_wcrt_mask(0x3A, 0x00, 0x30);
|
|
|
|
if (fasttext) {
|
|
pr_debug("fb%d: high speed text mode set\n", info->node);
|
|
svga_wcrt_mask(0x31, 0x40, 0x40);
|
|
}
|
|
break;
|
|
case 1:
|
|
pr_debug("fb%d: 4 bit pseudocolor\n", info->node);
|
|
vga_wgfx(NULL, VGA_GFX_MODE, 0x40);
|
|
|
|
/* Set additional registers like in 8-bit mode */
|
|
svga_wcrt_mask(0x50, 0x00, 0x30);
|
|
svga_wcrt_mask(0x67, 0x00, 0xF0);
|
|
|
|
/* disable enhanced mode */
|
|
svga_wcrt_mask(0x3A, 0x00, 0x30);
|
|
break;
|
|
case 2:
|
|
pr_debug("fb%d: 4 bit pseudocolor, planar\n", info->node);
|
|
|
|
/* Set additional registers like in 8-bit mode */
|
|
svga_wcrt_mask(0x50, 0x00, 0x30);
|
|
svga_wcrt_mask(0x67, 0x00, 0xF0);
|
|
|
|
/* disable enhanced mode */
|
|
svga_wcrt_mask(0x3A, 0x00, 0x30);
|
|
break;
|
|
case 3:
|
|
pr_debug("fb%d: 8 bit pseudocolor\n", info->node);
|
|
if (info->var.pixclock > 20000) {
|
|
svga_wcrt_mask(0x50, 0x00, 0x30);
|
|
svga_wcrt_mask(0x67, 0x00, 0xF0);
|
|
} else {
|
|
svga_wcrt_mask(0x50, 0x00, 0x30);
|
|
svga_wcrt_mask(0x67, 0x10, 0xF0);
|
|
multiplex = 1;
|
|
}
|
|
break;
|
|
case 4:
|
|
pr_debug("fb%d: 5/5/5 truecolor\n", info->node);
|
|
if (par->chip == CHIP_988_VIRGE_VX) {
|
|
if (info->var.pixclock > 20000)
|
|
svga_wcrt_mask(0x67, 0x20, 0xF0);
|
|
else
|
|
svga_wcrt_mask(0x67, 0x30, 0xF0);
|
|
} else {
|
|
svga_wcrt_mask(0x50, 0x10, 0x30);
|
|
svga_wcrt_mask(0x67, 0x30, 0xF0);
|
|
hmul = 2;
|
|
}
|
|
break;
|
|
case 5:
|
|
pr_debug("fb%d: 5/6/5 truecolor\n", info->node);
|
|
if (par->chip == CHIP_988_VIRGE_VX) {
|
|
if (info->var.pixclock > 20000)
|
|
svga_wcrt_mask(0x67, 0x40, 0xF0);
|
|
else
|
|
svga_wcrt_mask(0x67, 0x50, 0xF0);
|
|
} else {
|
|
svga_wcrt_mask(0x50, 0x10, 0x30);
|
|
svga_wcrt_mask(0x67, 0x50, 0xF0);
|
|
hmul = 2;
|
|
}
|
|
break;
|
|
case 6:
|
|
/* VIRGE VX case */
|
|
pr_debug("fb%d: 8/8/8 truecolor\n", info->node);
|
|
svga_wcrt_mask(0x67, 0xD0, 0xF0);
|
|
break;
|
|
case 7:
|
|
pr_debug("fb%d: 8/8/8/8 truecolor\n", info->node);
|
|
svga_wcrt_mask(0x50, 0x30, 0x30);
|
|
svga_wcrt_mask(0x67, 0xD0, 0xF0);
|
|
break;
|
|
default:
|
|
printk(KERN_ERR "fb%d: unsupported mode - bug\n", info->node);
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (par->chip != CHIP_988_VIRGE_VX) {
|
|
svga_wseq_mask(0x15, multiplex ? 0x10 : 0x00, 0x10);
|
|
svga_wseq_mask(0x18, multiplex ? 0x80 : 0x00, 0x80);
|
|
}
|
|
|
|
s3_set_pixclock(info, info->var.pixclock);
|
|
svga_set_timings(&s3_timing_regs, &(info->var), hmul, 1,
|
|
(info->var.vmode & FB_VMODE_DOUBLE) ? 2 : 1,
|
|
(info->var.vmode & FB_VMODE_INTERLACED) ? 2 : 1,
|
|
hmul, info->node);
|
|
|
|
/* Set interlaced mode start/end register */
|
|
value = info->var.xres + info->var.left_margin + info->var.right_margin + info->var.hsync_len;
|
|
value = ((value * hmul) / 8) - 5;
|
|
vga_wcrt(NULL, 0x3C, (value + 1) / 2);
|
|
|
|
memset((u8*)info->screen_base, 0x00, screen_size);
|
|
/* Device and screen back on */
|
|
svga_wcrt_mask(0x17, 0x80, 0x80);
|
|
svga_wseq_mask(0x01, 0x00, 0x20);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* 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)
|
|
{
|
|
switch (fb->var.bits_per_pixel) {
|
|
case 0:
|
|
case 4:
|
|
if (regno >= 16)
|
|
return -EINVAL;
|
|
|
|
if ((fb->var.bits_per_pixel == 4) &&
|
|
(fb->var.nonstd == 0)) {
|
|
outb(0xF0, VGA_PEL_MSK);
|
|
outb(regno*16, VGA_PEL_IW);
|
|
} else {
|
|
outb(0x0F, VGA_PEL_MSK);
|
|
outb(regno, VGA_PEL_IW);
|
|
}
|
|
outb(red >> 10, VGA_PEL_D);
|
|
outb(green >> 10, VGA_PEL_D);
|
|
outb(blue >> 10, VGA_PEL_D);
|
|
break;
|
|
case 8:
|
|
if (regno >= 256)
|
|
return -EINVAL;
|
|
|
|
outb(0xFF, VGA_PEL_MSK);
|
|
outb(regno, VGA_PEL_IW);
|
|
outb(red >> 10, VGA_PEL_D);
|
|
outb(green >> 10, VGA_PEL_D);
|
|
outb(blue >> 10, VGA_PEL_D);
|
|
break;
|
|
case 16:
|
|
if (regno >= 16)
|
|
return -EINVAL;
|
|
|
|
if (fb->var.green.length == 5)
|
|
((u32*)fb->pseudo_palette)[regno] = ((red & 0xF800) >> 1) |
|
|
((green & 0xF800) >> 6) | ((blue & 0xF800) >> 11);
|
|
else if (fb->var.green.length == 6)
|
|
((u32*)fb->pseudo_palette)[regno] = (red & 0xF800) |
|
|
((green & 0xFC00) >> 5) | ((blue & 0xF800) >> 11);
|
|
else return -EINVAL;
|
|
break;
|
|
case 24:
|
|
case 32:
|
|
if (regno >= 16)
|
|
return -EINVAL;
|
|
|
|
((u32*)fb->pseudo_palette)[regno] = ((transp & 0xFF00) << 16) | ((red & 0xFF00) << 8) |
|
|
(green & 0xFF00) | ((blue & 0xFF00) >> 8);
|
|
break;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
/* Set the display blanking state */
|
|
|
|
static int s3fb_blank(int blank_mode, struct fb_info *info)
|
|
{
|
|
switch (blank_mode) {
|
|
case FB_BLANK_UNBLANK:
|
|
pr_debug("fb%d: unblank\n", info->node);
|
|
svga_wcrt_mask(0x56, 0x00, 0x06);
|
|
svga_wseq_mask(0x01, 0x00, 0x20);
|
|
break;
|
|
case FB_BLANK_NORMAL:
|
|
pr_debug("fb%d: blank\n", info->node);
|
|
svga_wcrt_mask(0x56, 0x00, 0x06);
|
|
svga_wseq_mask(0x01, 0x20, 0x20);
|
|
break;
|
|
case FB_BLANK_HSYNC_SUSPEND:
|
|
pr_debug("fb%d: hsync\n", info->node);
|
|
svga_wcrt_mask(0x56, 0x02, 0x06);
|
|
svga_wseq_mask(0x01, 0x20, 0x20);
|
|
break;
|
|
case FB_BLANK_VSYNC_SUSPEND:
|
|
pr_debug("fb%d: vsync\n", info->node);
|
|
svga_wcrt_mask(0x56, 0x04, 0x06);
|
|
svga_wseq_mask(0x01, 0x20, 0x20);
|
|
break;
|
|
case FB_BLANK_POWERDOWN:
|
|
pr_debug("fb%d: sync down\n", info->node);
|
|
svga_wcrt_mask(0x56, 0x06, 0x06);
|
|
svga_wseq_mask(0x01, 0x20, 0x20);
|
|
break;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
/* Pan the display */
|
|
|
|
static int s3fb_pan_display(struct fb_var_screeninfo *var, struct fb_info *info) {
|
|
|
|
unsigned int offset;
|
|
|
|
/* Validate the offsets */
|
|
if ((var->xoffset + var->xres) > var->xres_virtual)
|
|
return -EINVAL;
|
|
if ((var->yoffset + var->yres) > var->yres_virtual)
|
|
return -EINVAL;
|
|
|
|
/* Calculate the offset */
|
|
if (var->bits_per_pixel == 0) {
|
|
offset = (var->yoffset / 16) * (var->xres_virtual / 2) + (var->xoffset / 2);
|
|
offset = offset >> 2;
|
|
} else {
|
|
offset = (var->yoffset * info->fix.line_length) +
|
|
(var->xoffset * var->bits_per_pixel / 8);
|
|
offset = offset >> 2;
|
|
}
|
|
|
|
/* Set the offset */
|
|
svga_wcrt_multi(s3_start_address_regs, offset);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* ------------------------------------------------------------------------- */
|
|
|
|
/* Frame buffer operations */
|
|
|
|
static struct fb_ops s3fb_ops = {
|
|
.owner = THIS_MODULE,
|
|
.fb_open = s3fb_open,
|
|
.fb_release = s3fb_release,
|
|
.fb_check_var = s3fb_check_var,
|
|
.fb_set_par = s3fb_set_par,
|
|
.fb_setcolreg = s3fb_setcolreg,
|
|
.fb_blank = s3fb_blank,
|
|
.fb_pan_display = s3fb_pan_display,
|
|
.fb_fillrect = s3fb_fillrect,
|
|
.fb_copyarea = cfb_copyarea,
|
|
.fb_imageblit = s3fb_imageblit,
|
|
};
|
|
|
|
/* ------------------------------------------------------------------------- */
|
|
|
|
static int __devinit s3_identification(int chip)
|
|
{
|
|
if (chip == CHIP_XXX_TRIO) {
|
|
u8 cr30 = vga_rcrt(NULL, 0x30);
|
|
u8 cr2e = vga_rcrt(NULL, 0x2e);
|
|
u8 cr2f = vga_rcrt(NULL, 0x2f);
|
|
|
|
if ((cr30 == 0xE0) || (cr30 == 0xE1)) {
|
|
if (cr2e == 0x10)
|
|
return CHIP_732_TRIO32;
|
|
if (cr2e == 0x11) {
|
|
if (! (cr2f & 0x40))
|
|
return CHIP_764_TRIO64;
|
|
else
|
|
return CHIP_765_TRIO64VP;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (chip == CHIP_XXX_TRIO64V2_DXGX) {
|
|
u8 cr6f = vga_rcrt(NULL, 0x6f);
|
|
|
|
if (! (cr6f & 0x01))
|
|
return CHIP_775_TRIO64V2_DX;
|
|
else
|
|
return CHIP_785_TRIO64V2_GX;
|
|
}
|
|
|
|
if (chip == CHIP_XXX_VIRGE_DXGX) {
|
|
u8 cr6f = vga_rcrt(NULL, 0x6f);
|
|
|
|
if (! (cr6f & 0x01))
|
|
return CHIP_375_VIRGE_DX;
|
|
else
|
|
return CHIP_385_VIRGE_GX;
|
|
}
|
|
|
|
return CHIP_UNKNOWN;
|
|
}
|
|
|
|
|
|
/* PCI probe */
|
|
|
|
static int __devinit s3_pci_probe(struct pci_dev *dev, const struct pci_device_id *id)
|
|
{
|
|
struct fb_info *info;
|
|
struct s3fb_info *par;
|
|
int rc;
|
|
u8 regval, cr38, cr39;
|
|
|
|
/* Ignore secondary VGA device because there is no VGA arbitration */
|
|
if (! svga_primary_device(dev)) {
|
|
dev_info(&(dev->dev), "ignoring secondary device\n");
|
|
return -ENODEV;
|
|
}
|
|
|
|
/* Allocate and fill driver data structure */
|
|
info = framebuffer_alloc(sizeof(struct s3fb_info), NULL);
|
|
if (!info) {
|
|
dev_err(&(dev->dev), "cannot allocate memory\n");
|
|
return -ENOMEM;
|
|
}
|
|
|
|
par = info->par;
|
|
mutex_init(&par->open_lock);
|
|
|
|
info->flags = FBINFO_PARTIAL_PAN_OK | FBINFO_HWACCEL_YPAN;
|
|
info->fbops = &s3fb_ops;
|
|
|
|
/* Prepare PCI device */
|
|
rc = pci_enable_device(dev);
|
|
if (rc < 0) {
|
|
dev_err(&(dev->dev), "cannot enable PCI device\n");
|
|
goto err_enable_device;
|
|
}
|
|
|
|
rc = pci_request_regions(dev, "s3fb");
|
|
if (rc < 0) {
|
|
dev_err(&(dev->dev), "cannot reserve framebuffer region\n");
|
|
goto err_request_regions;
|
|
}
|
|
|
|
|
|
info->fix.smem_start = pci_resource_start(dev, 0);
|
|
info->fix.smem_len = pci_resource_len(dev, 0);
|
|
|
|
/* Map physical IO memory address into kernel space */
|
|
info->screen_base = pci_iomap(dev, 0, 0);
|
|
if (! info->screen_base) {
|
|
rc = -ENOMEM;
|
|
dev_err(&(dev->dev), "iomap for framebuffer failed\n");
|
|
goto err_iomap;
|
|
}
|
|
|
|
/* Unlock regs */
|
|
cr38 = vga_rcrt(NULL, 0x38);
|
|
cr39 = vga_rcrt(NULL, 0x39);
|
|
vga_wseq(NULL, 0x08, 0x06);
|
|
vga_wcrt(NULL, 0x38, 0x48);
|
|
vga_wcrt(NULL, 0x39, 0xA5);
|
|
|
|
/* Find how many physical memory there is on card */
|
|
/* 0x36 register is accessible even if other registers are locked */
|
|
regval = vga_rcrt(NULL, 0x36);
|
|
info->screen_size = s3_memsizes[regval >> 5] << 10;
|
|
info->fix.smem_len = info->screen_size;
|
|
|
|
par->chip = id->driver_data & CHIP_MASK;
|
|
par->rev = vga_rcrt(NULL, 0x2f);
|
|
if (par->chip & CHIP_UNDECIDED_FLAG)
|
|
par->chip = s3_identification(par->chip);
|
|
|
|
/* Find MCLK frequency */
|
|
regval = vga_rseq(NULL, 0x10);
|
|
par->mclk_freq = ((vga_rseq(NULL, 0x11) + 2) * 14318) / ((regval & 0x1F) + 2);
|
|
par->mclk_freq = par->mclk_freq >> (regval >> 5);
|
|
|
|
/* Restore locks */
|
|
vga_wcrt(NULL, 0x38, cr38);
|
|
vga_wcrt(NULL, 0x39, cr39);
|
|
|
|
strcpy(info->fix.id, s3_names [par->chip]);
|
|
info->fix.mmio_start = 0;
|
|
info->fix.mmio_len = 0;
|
|
info->fix.type = FB_TYPE_PACKED_PIXELS;
|
|
info->fix.visual = FB_VISUAL_PSEUDOCOLOR;
|
|
info->fix.ypanstep = 0;
|
|
info->fix.accel = FB_ACCEL_NONE;
|
|
info->pseudo_palette = (void*) (par->pseudo_palette);
|
|
|
|
/* Prepare startup mode */
|
|
rc = fb_find_mode(&(info->var), info, mode, NULL, 0, NULL, 8);
|
|
if (! ((rc == 1) || (rc == 2))) {
|
|
rc = -EINVAL;
|
|
dev_err(&(dev->dev), "mode %s not found\n", mode);
|
|
goto err_find_mode;
|
|
}
|
|
|
|
rc = fb_alloc_cmap(&info->cmap, 256, 0);
|
|
if (rc < 0) {
|
|
dev_err(&(dev->dev), "cannot allocate colormap\n");
|
|
goto err_alloc_cmap;
|
|
}
|
|
|
|
rc = register_framebuffer(info);
|
|
if (rc < 0) {
|
|
dev_err(&(dev->dev), "cannot register framebuffer\n");
|
|
goto err_reg_fb;
|
|
}
|
|
|
|
printk(KERN_INFO "fb%d: %s on %s, %d MB RAM, %d MHz MCLK\n", info->node, info->fix.id,
|
|
pci_name(dev), info->fix.smem_len >> 20, (par->mclk_freq + 500) / 1000);
|
|
|
|
if (par->chip == CHIP_UNKNOWN)
|
|
printk(KERN_INFO "fb%d: unknown chip, CR2D=%x, CR2E=%x, CRT2F=%x, CRT30=%x\n",
|
|
info->node, vga_rcrt(NULL, 0x2d), vga_rcrt(NULL, 0x2e),
|
|
vga_rcrt(NULL, 0x2f), vga_rcrt(NULL, 0x30));
|
|
|
|
/* Record a reference to the driver data */
|
|
pci_set_drvdata(dev, info);
|
|
|
|
#ifdef CONFIG_MTRR
|
|
if (mtrr) {
|
|
par->mtrr_reg = -1;
|
|
par->mtrr_reg = mtrr_add(info->fix.smem_start, info->fix.smem_len, MTRR_TYPE_WRCOMB, 1);
|
|
}
|
|
#endif
|
|
|
|
return 0;
|
|
|
|
/* Error handling */
|
|
err_reg_fb:
|
|
fb_dealloc_cmap(&info->cmap);
|
|
err_alloc_cmap:
|
|
err_find_mode:
|
|
pci_iounmap(dev, info->screen_base);
|
|
err_iomap:
|
|
pci_release_regions(dev);
|
|
err_request_regions:
|
|
/* pci_disable_device(dev); */
|
|
err_enable_device:
|
|
framebuffer_release(info);
|
|
return rc;
|
|
}
|
|
|
|
|
|
/* PCI remove */
|
|
|
|
static void __devexit s3_pci_remove(struct pci_dev *dev)
|
|
{
|
|
struct fb_info *info = pci_get_drvdata(dev);
|
|
|
|
if (info) {
|
|
|
|
#ifdef CONFIG_MTRR
|
|
struct s3fb_info *par = info->par;
|
|
|
|
if (par->mtrr_reg >= 0) {
|
|
mtrr_del(par->mtrr_reg, 0, 0);
|
|
par->mtrr_reg = -1;
|
|
}
|
|
#endif
|
|
|
|
unregister_framebuffer(info);
|
|
fb_dealloc_cmap(&info->cmap);
|
|
|
|
pci_iounmap(dev, info->screen_base);
|
|
pci_release_regions(dev);
|
|
/* pci_disable_device(dev); */
|
|
|
|
pci_set_drvdata(dev, NULL);
|
|
framebuffer_release(info);
|
|
}
|
|
}
|
|
|
|
/* PCI suspend */
|
|
|
|
static int s3_pci_suspend(struct pci_dev* dev, pm_message_t state)
|
|
{
|
|
struct fb_info *info = pci_get_drvdata(dev);
|
|
struct s3fb_info *par = info->par;
|
|
|
|
dev_info(&(dev->dev), "suspend\n");
|
|
|
|
acquire_console_sem();
|
|
mutex_lock(&(par->open_lock));
|
|
|
|
if ((state.event == PM_EVENT_FREEZE) || (par->ref_count == 0)) {
|
|
mutex_unlock(&(par->open_lock));
|
|
release_console_sem();
|
|
return 0;
|
|
}
|
|
|
|
fb_set_suspend(info, 1);
|
|
|
|
pci_save_state(dev);
|
|
pci_disable_device(dev);
|
|
pci_set_power_state(dev, pci_choose_state(dev, state));
|
|
|
|
mutex_unlock(&(par->open_lock));
|
|
release_console_sem();
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
/* PCI resume */
|
|
|
|
static int s3_pci_resume(struct pci_dev* dev)
|
|
{
|
|
struct fb_info *info = pci_get_drvdata(dev);
|
|
struct s3fb_info *par = info->par;
|
|
|
|
dev_info(&(dev->dev), "resume\n");
|
|
|
|
acquire_console_sem();
|
|
mutex_lock(&(par->open_lock));
|
|
|
|
if (par->ref_count == 0) {
|
|
mutex_unlock(&(par->open_lock));
|
|
release_console_sem();
|
|
return 0;
|
|
}
|
|
|
|
pci_set_power_state(dev, PCI_D0);
|
|
pci_restore_state(dev);
|
|
pci_enable_device(dev);
|
|
pci_set_master(dev);
|
|
|
|
s3fb_set_par(info);
|
|
fb_set_suspend(info, 0);
|
|
|
|
mutex_unlock(&(par->open_lock));
|
|
release_console_sem();
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
/* List of boards that we are trying to support */
|
|
|
|
static struct pci_device_id s3_devices[] __devinitdata = {
|
|
{PCI_DEVICE(PCI_VENDOR_ID_S3, 0x8810), .driver_data = CHIP_XXX_TRIO},
|
|
{PCI_DEVICE(PCI_VENDOR_ID_S3, 0x8811), .driver_data = CHIP_XXX_TRIO},
|
|
{PCI_DEVICE(PCI_VENDOR_ID_S3, 0x8812), .driver_data = CHIP_M65_AURORA64VP},
|
|
{PCI_DEVICE(PCI_VENDOR_ID_S3, 0x8814), .driver_data = CHIP_767_TRIO64UVP},
|
|
{PCI_DEVICE(PCI_VENDOR_ID_S3, 0x8901), .driver_data = CHIP_XXX_TRIO64V2_DXGX},
|
|
{PCI_DEVICE(PCI_VENDOR_ID_S3, 0x8902), .driver_data = CHIP_551_PLATO_PX},
|
|
|
|
{PCI_DEVICE(PCI_VENDOR_ID_S3, 0x5631), .driver_data = CHIP_325_VIRGE},
|
|
{PCI_DEVICE(PCI_VENDOR_ID_S3, 0x883D), .driver_data = CHIP_988_VIRGE_VX},
|
|
{PCI_DEVICE(PCI_VENDOR_ID_S3, 0x8A01), .driver_data = CHIP_XXX_VIRGE_DXGX},
|
|
{PCI_DEVICE(PCI_VENDOR_ID_S3, 0x8A10), .driver_data = CHIP_356_VIRGE_GX2},
|
|
{PCI_DEVICE(PCI_VENDOR_ID_S3, 0x8A11), .driver_data = CHIP_357_VIRGE_GX2P},
|
|
{PCI_DEVICE(PCI_VENDOR_ID_S3, 0x8A12), .driver_data = CHIP_359_VIRGE_GX2P},
|
|
|
|
{0, 0, 0, 0, 0, 0, 0}
|
|
};
|
|
|
|
|
|
MODULE_DEVICE_TABLE(pci, s3_devices);
|
|
|
|
static struct pci_driver s3fb_pci_driver = {
|
|
.name = "s3fb",
|
|
.id_table = s3_devices,
|
|
.probe = s3_pci_probe,
|
|
.remove = __devexit_p(s3_pci_remove),
|
|
.suspend = s3_pci_suspend,
|
|
.resume = s3_pci_resume,
|
|
};
|
|
|
|
/* Parse user speficied options */
|
|
|
|
#ifndef MODULE
|
|
static int __init s3fb_setup(char *options)
|
|
{
|
|
char *opt;
|
|
|
|
if (!options || !*options)
|
|
return 0;
|
|
|
|
while ((opt = strsep(&options, ",")) != NULL) {
|
|
|
|
if (!*opt)
|
|
continue;
|
|
#ifdef CONFIG_MTRR
|
|
else if (!strncmp(opt, "mtrr:", 5))
|
|
mtrr = simple_strtoul(opt + 5, NULL, 0);
|
|
#endif
|
|
else if (!strncmp(opt, "fasttext:", 9))
|
|
fasttext = simple_strtoul(opt + 9, NULL, 0);
|
|
else
|
|
mode = opt;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
/* Cleanup */
|
|
|
|
static void __exit s3fb_cleanup(void)
|
|
{
|
|
pr_debug("s3fb: cleaning up\n");
|
|
pci_unregister_driver(&s3fb_pci_driver);
|
|
}
|
|
|
|
/* Driver Initialisation */
|
|
|
|
static int __init s3fb_init(void)
|
|
{
|
|
|
|
#ifndef MODULE
|
|
char *option = NULL;
|
|
|
|
if (fb_get_options("s3fb", &option))
|
|
return -ENODEV;
|
|
s3fb_setup(option);
|
|
#endif
|
|
|
|
pr_debug("s3fb: initializing\n");
|
|
return pci_register_driver(&s3fb_pci_driver);
|
|
}
|
|
|
|
/* ------------------------------------------------------------------------- */
|
|
|
|
/* Modularization */
|
|
|
|
module_init(s3fb_init);
|
|
module_exit(s3fb_cleanup);
|