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1622 1623 1624 1625 1626 1627 1628 1629 1630 1631 1632 1633 1634 1635 1636 1637 1638 1639 1640 1641 1642 1643 1644 1645 1646 1647 1648 1649 1650 1651 1652 1653 1654 1655 1656 1657 1658 1659 1660 1661 1662 1663 1664 1665 1666 1667 1668 1669 1670 1671 1672 1673 1674 1675 1676 1677 1678 1679 1680 1681 1682 1683 1684 1685 1686 1687 1688 1689 1690 1691 1692 1693 1694 1695 1696 1697 1698 1699 1700 1701 1702 1703 1704 1705 1706 1707 1708 1709 1710 1711 1712 1713 1714 1715 1716 1717 1718 1719 1720 1721 1722 1723 1724 1725 1726 1727 1728 1729 1730 1731 1732 1733 1734 1735 1736 1737 1738 1739 1740 1741 1742 1743 1744 1745 1746 1747 1748 1749 1750 1751 1752 1753 1754 | /* * Linux/arch/m68k/amiga/retz3fb.c -- Low level implementation of the * RetinaZ3 frame buffer device * * Copyright (C) 1997 Jes Sorensen * * This file is based on the CyberVision64 frame buffer device and * the generic Cirrus Logic driver. * * cyberfb.c: Copyright (C) 1996 Martin Apel, * Geert Uytterhoeven * clgen.c: Copyright (C) 1996 Frank Neumann * * History: * - 22 Jan 97: Initial work * - 14 Feb 97: Screen initialization works somewhat, still only * 8-bit packed pixel is supported. * * 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. */ #include <linux/kernel.h> #include <linux/errno.h> #include <linux/string.h> #include <linux/mm.h> #include <linux/tty.h> #include <linux/malloc.h> #include <linux/delay.h> #include <linux/fb.h> #include <linux/zorro.h> #include <linux/init.h> #include <asm/uaccess.h> #include <asm/system.h> #include <asm/irq.h> #include <asm/pgtable.h> #include "retz3fb.h" /* #define DEBUG if(1) */ #define DEBUG if(0) /* * Reserve space for one pattern line. * * For the time being we only support 4MB boards! */ #define PAT_MEM_SIZE 16*3 #define PAT_MEM_OFF (4*1024*1024 - PAT_MEM_SIZE) #define arraysize(x) (sizeof(x)/sizeof(*(x))) struct retz3_fb_par { int xres; int yres; int xres_vir; int yres_vir; int xoffset; int yoffset; int bpp; struct fb_bitfield red; struct fb_bitfield green; struct fb_bitfield blue; struct fb_bitfield transp; int pixclock; int left_margin; /* time from sync to picture */ int right_margin; /* time from picture to sync */ int upper_margin; /* time from sync to picture */ int lower_margin; int hsync_len; /* length of horizontal sync */ int vsync_len; /* length of vertical sync */ int vmode; }; struct display_data { long h_total; /* Horizontal Total */ long h_sstart; /* Horizontal Sync Start */ long h_sstop; /* Horizontal Sync Stop */ long h_bstart; /* Horizontal Blank Start */ long h_bstop; /* Horizontal Blank Stop */ long h_dispend; /* Horizontal Display End */ long v_total; /* Vertical Total */ long v_sstart; /* Vertical Sync Start */ long v_sstop; /* Vertical Sync Stop */ long v_bstart; /* Vertical Blank Start */ long v_bstop; /* Vertical Blank Stop */ long v_dispend; /* Horizontal Display End */ }; static struct retz3_fb_par current_par; static int current_par_valid = 0; static int currcon = 0; static struct display disp[MAX_NR_CONSOLES]; static struct fb_info fb_info; static int node; /* node of the /dev/fb?current file */ /* * Switch for Chipset Independency */ static struct fb_hwswitch { /* Initialisation */ int (*init)(void); /* Display Control */ int (*encode_fix)(struct fb_fix_screeninfo *fix, struct retz3_fb_par *par); int (*decode_var)(struct fb_var_screeninfo *var, struct retz3_fb_par *par); int (*encode_var)(struct fb_var_screeninfo *var, struct retz3_fb_par *par); int (*getcolreg)(unsigned int regno, unsigned int *red, unsigned int *green, unsigned int *blue, unsigned int *transp); int (*setcolreg)(unsigned int regno, unsigned int red, unsigned int green, unsigned int blue, unsigned int transp); void (*blank)(int blank); } *fbhw; /* * Frame Buffer Name */ static char retz3_fb_name[16] = "RetinaZ3"; static int z3_key = 0; static unsigned char retz3_color_table [256][4]; static unsigned long z3_mem; static unsigned long z3_fbmem; static unsigned long z3_size; static volatile unsigned char *z3_regs; static long *memstart; /* * Predefined Video Mode Names */ static char *retz3_fb_modenames[] = { /* * Autodetect (Default) Video Mode */ "default", /* * Predefined Video Modes */ "640x480", /* RetinaZ3 8 bpp */ "800x600", /* RetinaZ3 8 bpp */ "1024x768i", "640x480-16", /* RetinaZ3 16 bpp */ "640x480-24", /* RetinaZ3 24 bpp */ /* * Dummy Video Modes */ "dummy", "dummy", "dummy", "dummy", "dummy", "dummy", "dummy", "dummy", "dummy", "dummy", "dummy", "dummy", "dummy", "dummy", "dummy", "dummy", "dummy", "dummy", "dummy", "dummy", /* * User Defined Video Modes * * This doesn't work yet!! */ "user0", "user1", "user2", "user3", "user4", "user5", "user6", "user7" }; /* * A small info on how to convert XFree86 timing values into fb * timings - by Frank Neumann: * An XFree86 mode line consists of the following fields: "800x600" 50 800 856 976 1040 600 637 643 666 < name > DCF HR SH1 SH2 HFL VR SV1 SV2 VFL The fields in the fb_var_screeninfo structure are: unsigned long pixclock; * pixel clock in ps (pico seconds) * unsigned long left_margin; * time from sync to picture * unsigned long right_margin; * time from picture to sync * unsigned long upper_margin; * time from sync to picture * unsigned long lower_margin; unsigned long hsync_len; * length of horizontal sync * unsigned long vsync_len; * length of vertical sync * 1) Pixelclock: xfree: in MHz fb: In Picoseconds (ps) pixclock = 1000000 / DCF 2) horizontal timings: left_margin = HFL - SH2 right_margin = SH1 - HR hsync_len = SH2 - SH1 3) vertical timings: upper_margin = VFL - SV2 lower_margin = SV1 - VR vsync_len = SV2 - SV1 Good examples for VESA timings can be found in the XFree86 source tree, under "programs/Xserver/hw/xfree86/doc/modeDB.txt". */ /* * Predefined Video Mode Definitions */ static struct fb_var_screeninfo retz3_fb_predefined[] = { /* * Autodetect (Default) Video Mode */ { 0, }, /* * Predefined Video Modes */ /* * NB: it is very important to adjust the pixel-clock to the color-depth. */ { 640, 480, 640, 480, 0, 0, 8, 0, {0, 8, 0}, {0, 8, 0}, {0, 8, 0}, {0, 0, 0}, 0, 0, -1, -1, FB_ACCEL_RETINAZ3, 38461, 28, 32, 12, 10, 96, 2, FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED }, /* ModeLine "800x600" 36 800 824 896 1024 600 601 603 625 < name > DCF HR SH1 SH2 HFL VR SV1 SV2 VFL */ { /* 800 x 600, 8 bpp */ 800, 600, 800, 600, 0, 0, 8, 0, {0, 8, 0}, {0, 8, 0}, {0, 8, 0}, {0, 0, 0}, 0, 0, -1, -1, FB_ACCEL_RETINAZ3, 27778, 64, 24, 22, 1, 120, 2, FB_SYNC_COMP_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED }, /* ModeLine "1024x768i" 45 1024 1064 1224 1264 768 777 785 817 interlace < name > DCF HR SH1 SH2 HFL VR SV1 SV2 VFL */ { /* 1024 x 768, 8 bpp, interlaced */ 1024, 768, 1024, 768, 0, 0, 8, 0, {0, 8, 0}, {0, 8, 0}, {0, 8, 0}, {0, 0, 0}, 0, 0, -1, -1, FB_ACCEL_RETINAZ3, 22222, 40, 40, 32, 9, 160, 8, FB_SYNC_COMP_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_INTERLACED }, { 640, 480, 640, 480, 0, 0, 16, 0, {11, 5, 0}, {5, 6, 0}, {0, 5, 0}, {0, 0, 0}, 0, 0, -1, -1, FB_ACCEL_RETINAZ3, 38461/2, 28, 32, 12, 10, 96, 2, FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED }, { 640, 480, 640, 480, 0, 0, 24, 0, {8, 8, 8}, {8, 8, 8}, {8, 8, 8}, {0, 0, 0}, 0, 0, -1, -1, FB_ACCEL_RETINAZ3, 38461/3, 28, 32, 12, 10, 96, 2, FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED }, /* * Dummy Video Modes */ { 0, }, { 0, }, { 0, }, { 0, }, { 0, }, { 0, }, { 0, }, { 0, }, { 0, }, { 0, }, { 0, }, { 0, }, { 0, }, { 0, }, { 0, }, { 0, }, { 0, }, { 0, }, { 0, }, { 0, }, /* * User Defined Video Modes */ { 0, }, { 0, }, { 0, }, { 0, }, { 0, }, { 0, }, { 0, }, { 0, } }; #define NUM_TOTAL_MODES arraysize(retz3_fb_predefined) #define NUM_PREDEF_MODES (5) static int z3fb_inverse = 0; static int z3fb_mode = 0; /* * Interface used by the world */ int retz3_probe(void); void retz3_video_setup(char *options, int *ints); static int retz3_fb_get_fix(struct fb_fix_screeninfo *fix, int con); static int retz3_fb_get_var(struct fb_var_screeninfo *var, int con); static int retz3_fb_set_var(struct fb_var_screeninfo *var, int con); static int retz3_fb_get_cmap(struct fb_cmap *cmap, int kspc, int con); static int retz3_fb_set_cmap(struct fb_cmap *cmap, int kspc, int con); static int retz3_fb_pan_display(struct fb_var_screeninfo *var, int con); static int retz3_fb_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg, int con); /* * Interface to the low level console driver */ struct fb_info *retz3_fb_init(long *mem_start); /* Through amiga_fb_init() */ static int z3fb_switch(int con); static int z3fb_updatevar(int con); static void z3fb_blank(int blank); static int z3fb_setcmap(struct fb_cmap *cmap, int con); /* * Accelerated Functions used by the low level console driver */ void retz3_bitblt(struct fb_var_screeninfo *scr, unsigned short curx, unsigned short cury, unsigned short destx, unsigned short desty, unsigned short width, unsigned short height, unsigned short cmd, unsigned short mask); void retz3_fill(unsigned short x, unsigned short y, unsigned short width, unsigned short height, unsigned short mode, unsigned short color); /* * Hardware Specific Routines */ static int retz3_init(void); static int retz3_encode_fix(struct fb_fix_screeninfo *fix, struct retz3_fb_par *par); static int retz3_decode_var(struct fb_var_screeninfo *var, struct retz3_fb_par *par); static int retz3_encode_var(struct fb_var_screeninfo *var, struct retz3_fb_par *par); static int retz3_getcolreg(unsigned int regno, unsigned int *red, unsigned int *green, unsigned int *blue, unsigned int *transp); static int retz3_setcolreg(unsigned int regno, unsigned int red, unsigned int green, unsigned int blue, unsigned int transp); static void retz3_blank(int blank); /* * Internal routines */ static void retz3_fb_get_par(struct retz3_fb_par *par); static void retz3_fb_set_par(struct retz3_fb_par *par); static int do_fb_set_var(struct fb_var_screeninfo *var, int isactive); static struct fb_cmap *get_default_colormap(int bpp); static int do_fb_get_cmap(struct fb_cmap *cmap, struct fb_var_screeninfo *var, int kspc); static int do_fb_set_cmap(struct fb_cmap *cmap, struct fb_var_screeninfo *var, int kspc); static void do_install_cmap(int con); static void memcpy_fs(int fsfromto, void *to, void *from, int len); static void copy_cmap(struct fb_cmap *from, struct fb_cmap *to, int fsfromto); static int alloc_cmap(struct fb_cmap *cmap, int len, int transp); static void retz3_fb_set_disp(int con); static int get_video_mode(const char *name); /* -------------------- Hardware specific routines -------------------------- */ static unsigned short find_fq(unsigned int freq) { unsigned long f; long tmp; long prev = 0x7fffffff; long n2, n1 = 3; unsigned long m; unsigned short res = 0; if (freq <= 31250000) n2 = 3; else if (freq <= 62500000) n2 = 2; else if (freq <= 125000000) n2 = 1; else if (freq <= 250000000) n2 = 0; else return(0); do { f = freq >> (10 - n2); m = (f * n1) / (14318180/1024); if (m > 129) break; tmp = (((m * 14318180) >> n2) / n1) - freq; if (tmp < 0) tmp = -tmp; if (tmp < prev) { prev = tmp; res = (((n2 << 5) | (n1-2)) << 8) | (m-2); } } while ( (++n1) <= 21); return res; } static int retz3_set_video(struct fb_var_screeninfo *var, struct retz3_fb_par *par) { float freq_f; long freq; int xres, hfront, hsync, hback; int yres, vfront, vsync, vback; unsigned char tmp; unsigned short best_freq; struct display_data data; short clocksel = 0; /* Apparantly this is always zero */ int bpp = var->bits_per_pixel; /* * XXX */ if (bpp == 24) return 0; if ((bpp != 8) && (bpp != 16) && (bpp != 24)) return -EFAULT; par->xoffset = 0; par->yoffset = 0; xres = var->xres * bpp / 4; hfront = var->right_margin * bpp / 4; hsync = var->hsync_len * bpp / 4; hback = var->left_margin * bpp / 4; if (var->vmode & FB_VMODE_DOUBLE) { yres = var->yres * 2; vfront = var->lower_margin * 2; vsync = var->vsync_len * 2; vback = var->upper_margin * 2; } else if (var->vmode & FB_VMODE_INTERLACED) { yres = (var->yres + 1) / 2; vfront = (var->lower_margin + 1) / 2; vsync = (var->vsync_len + 1) / 2; vback = (var->upper_margin + 1) / 2; } else { yres = var->yres; /* -1 ? */ vfront = var->lower_margin; vsync = var->vsync_len; vback = var->upper_margin; } data.h_total = (hback / 8) + (xres / 8) + (hfront / 8) + (hsync / 8) - 1 /* + 1 */; data.h_dispend = ((xres + bpp - 1)/ 8) - 1; data.h_bstart = xres / 8 /* + 1 */; data.h_bstop = data.h_total+1 + 2 + 1; data.h_sstart = (xres / 8) + (hfront / 8) + 1; data.h_sstop = (xres / 8) + (hfront / 8) + (hsync / 8) + 1; data.v_total = yres + vfront + vsync + vback - 1; data.v_dispend = yres - 1; data.v_bstart = yres; data.v_bstop = data.v_total; data.v_sstart = yres + vfront - 1 - 2; data.v_sstop = yres + vfront + vsync - 1; #if 0 /* testing */ printk("HBS: %i\n", data.h_bstart); printk("HSS: %i\n", data.h_sstart); printk("HSE: %i\n", data.h_sstop); printk("HBE: %i\n", data.h_bstop); printk("HT: %i\n", data.h_total); printk("hsync: %i\n", hsync); printk("hfront: %i\n", hfront); printk("hback: %i\n", hback); printk("VBS: %i\n", data.v_bstart); printk("VSS: %i\n", data.v_sstart); printk("VSE: %i\n", data.v_sstop); printk("VBE: %i\n", data.v_bstop); printk("VT: %i\n", data.v_total); printk("vsync: %i\n", vsync); printk("vfront: %i\n", vfront); printk("vback: %i\n", vback); #endif if (data.v_total >= 1024) printk("MAYDAY: v_total >= 1024; bailing out!\n"); reg_w(GREG_MISC_OUTPUT_W, 0xe3 | ((clocksel & 3) * 0x04)); reg_w(GREG_FEATURE_CONTROL_W, 0x00); seq_w(SEQ_RESET, 0x00); seq_w(SEQ_RESET, 0x03); /* reset sequencer logic */ /* * CLOCKING_MODE bits: * 2: This one is only set for certain text-modes, wonder if * it may be for EGA-lines? (it was referred to as CLKDIV2) * (The CL drivers sets it to 0x21 with the comment: * FullBandwidth (video off) and 8/9 dot clock) */ seq_w(SEQ_CLOCKING_MODE, 0x01 | 0x00 /* 0x08 */); seq_w(SEQ_MAP_MASK, 0x0f); /* enable writing to plane 0-3 */ seq_w(SEQ_CHAR_MAP_SELECT, 0x00); /* doesn't matter in gfx-mode */ seq_w(SEQ_MEMORY_MODE, 0x06); /* CL driver says 0x0e for 256 col mode*/ seq_w(SEQ_RESET, 0x01); seq_w(SEQ_RESET, 0x03); seq_w(SEQ_EXTENDED_ENABLE, 0x05); seq_w(SEQ_CURSOR_CONTROL, 0x00); /* disable cursor */ seq_w(SEQ_PRIM_HOST_OFF_HI, 0x00); seq_w(SEQ_PRIM_HOST_OFF_HI, 0x00); seq_w(SEQ_LINEAR_0, 0x4a); seq_w(SEQ_LINEAR_1, 0x00); seq_w(SEQ_SEC_HOST_OFF_HI, 0x00); seq_w(SEQ_SEC_HOST_OFF_LO, 0x00); seq_w(SEQ_EXTENDED_MEM_ENA, 0x3 | 0x4 | 0x10 | 0x40); /* * The lower 4 bits (0-3) are used to set the font-width for * text-mode - DON'T try to set this for gfx-mode. */ seq_w(SEQ_EXT_CLOCK_MODE, 0x10); seq_w(SEQ_EXT_VIDEO_ADDR, 0x03); /* * Extended Pixel Control: * bit 0: text-mode=0, gfx-mode=1 (Graphics Byte ?) * bit 1: (Packed/Nibble Pixel Format ?) * bit 4-5: depth, 0=1-8bpp, 1=9-16bpp, 2=17-24bpp */ seq_w(SEQ_EXT_PIXEL_CNTL, 0x01 | (((bpp / 8) - 1) << 4)); seq_w(SEQ_BUS_WIDTH_FEEDB, 0x04); seq_w(SEQ_COLOR_EXP_WFG, 0x01); seq_w(SEQ_COLOR_EXP_WBG, 0x00); seq_w(SEQ_EXT_RW_CONTROL, 0x00); seq_w(SEQ_MISC_FEATURE_SEL, (0x51 | (clocksel & 8))); seq_w(SEQ_COLOR_KEY_CNTL, 0x40); seq_w(SEQ_COLOR_KEY_MATCH0, 0x00); seq_w(SEQ_COLOR_KEY_MATCH1, 0x00); seq_w(SEQ_COLOR_KEY_MATCH2, 0x00); seq_w(SEQ_CRC_CONTROL, 0x00); seq_w(SEQ_PERF_SELECT, 0x10); seq_w(SEQ_ACM_APERTURE_1, 0x00); seq_w(SEQ_ACM_APERTURE_2, 0x30); seq_w(SEQ_ACM_APERTURE_3, 0x00); seq_w(SEQ_MEMORY_MAP_CNTL, 0x03); /* unlock register CRT0..CRT7 */ crt_w(CRT_END_VER_RETR, (data.v_sstop & 0x0f) | 0x20); /* Zuerst zu schreibende Werte nur per printk ausgeben */ DEBUG printk("CRT_HOR_TOTAL: %ld\n", data.h_total); crt_w(CRT_HOR_TOTAL, data.h_total & 0xff); DEBUG printk("CRT_HOR_DISP_ENA_END: %ld\n", data.h_dispend); crt_w(CRT_HOR_DISP_ENA_END, (data.h_dispend) & 0xff); DEBUG printk("CRT_START_HOR_BLANK: %ld\n", data.h_bstart); crt_w(CRT_START_HOR_BLANK, data.h_bstart & 0xff); DEBUG printk("CRT_END_HOR_BLANK: 128+%ld\n", data.h_bstop % 32); crt_w(CRT_END_HOR_BLANK, 0x80 | (data.h_bstop & 0x1f)); DEBUG printk("CRT_START_HOR_RETR: %ld\n", data.h_sstart); crt_w(CRT_START_HOR_RETR, data.h_sstart & 0xff); tmp = (data.h_sstop & 0x1f); if (data.h_bstop & 0x20) tmp |= 0x80; DEBUG printk("CRT_END_HOR_RETR: %d\n", tmp); crt_w(CRT_END_HOR_RETR, tmp); DEBUG printk("CRT_VER_TOTAL: %ld\n", data.v_total & 0xff); crt_w(CRT_VER_TOTAL, (data.v_total & 0xff)); tmp = 0x10; /* LineCompare bit #9 */ if (data.v_total & 256) tmp |= 0x01; if (data.v_dispend & 256) tmp |= 0x02; if (data.v_sstart & 256) tmp |= 0x04; if (data.v_bstart & 256) tmp |= 0x08; if (data.v_total & 512) tmp |= 0x20; if (data.v_dispend & 512) tmp |= 0x40; if (data.v_sstart & 512) tmp |= 0x80; DEBUG printk("CRT_OVERFLOW: %d\n", tmp); crt_w(CRT_OVERFLOW, tmp); crt_w(CRT_PRESET_ROW_SCAN, 0x00); /* not CL !!! */ tmp = 0x40; /* LineCompare bit #8 */ if (data.v_bstart & 512) tmp |= 0x20; if (var->vmode & FB_VMODE_DOUBLE) tmp |= 0x80; DEBUG printk("CRT_MAX_SCAN_LINE: %d\n", tmp); crt_w(CRT_MAX_SCAN_LINE, tmp); crt_w(CRT_CURSOR_START, 0x00); crt_w(CRT_CURSOR_END, 8 & 0x1f); /* font height */ crt_w(CRT_START_ADDR_HIGH, 0x00); crt_w(CRT_START_ADDR_LOW, 0x00); crt_w(CRT_CURSOR_LOC_HIGH, 0x00); crt_w(CRT_CURSOR_LOC_LOW, 0x00); DEBUG printk("CRT_START_VER_RETR: %ld\n", data.v_sstart & 0xff); crt_w(CRT_START_VER_RETR, (data.v_sstart & 0xff)); #if 1 /* 5 refresh cycles per scanline */ DEBUG printk("CRT_END_VER_RETR: 64+32+%ld\n", data.v_sstop % 16); crt_w(CRT_END_VER_RETR, ((data.v_sstop & 0x0f) | 0x40 | 0x20)); #else DEBUG printk("CRT_END_VER_RETR: 128+32+%ld\n", data.v_sstop % 16); crt_w(CRT_END_VER_RETR, ((data.v_sstop & 0x0f) | 128 | 32)); #endif DEBUG printk("CRT_VER_DISP_ENA_END: %ld\n", data.v_dispend & 0xff); crt_w(CRT_VER_DISP_ENA_END, (data.v_dispend & 0xff)); DEBUG printk("CRT_START_VER_BLANK: %ld\n", data.v_bstart & 0xff); crt_w(CRT_START_VER_BLANK, (data.v_bstart & 0xff)); DEBUG printk("CRT_END_VER_BLANK: %ld\n", data.v_bstop & 0xff); crt_w(CRT_END_VER_BLANK, (data.v_bstop & 0xff)); DEBUG printk("CRT_MODE_CONTROL: 0xe3\n"); crt_w(CRT_MODE_CONTROL, 0xe3); DEBUG printk("CRT_LINE_COMPARE: 0xff\n"); crt_w(CRT_LINE_COMPARE, 0xff); tmp = (var->xres_virtual / 8) * (bpp / 8); crt_w(CRT_OFFSET, tmp); crt_w(CRT_UNDERLINE_LOC, 0x07); /* probably font-height - 1 */ tmp = 0x20; /* Enable extended end bits */ if (data.h_total & 0x100) tmp |= 0x01; if ((data.h_dispend) & 0x100) tmp |= 0x02; if (data.h_bstart & 0x100) tmp |= 0x04; if (data.h_sstart & 0x100) tmp |= 0x08; if (var->vmode & FB_VMODE_INTERLACED) tmp |= 0x10; DEBUG printk("CRT_EXT_HOR_TIMING1: %d\n", tmp); crt_w(CRT_EXT_HOR_TIMING1, tmp); tmp = 0x00; if (((var->xres_virtual / 8) * (bpp / 8)) & 0x100) tmp |= 0x10; crt_w(CRT_EXT_START_ADDR, tmp); tmp = 0x00; if (data.h_total & 0x200) tmp |= 0x01; if ((data.h_dispend) & 0x200) tmp |= 0x02; if (data.h_bstart & 0x200) tmp |= 0x04; if (data.h_sstart & 0x200) tmp |= 0x08; tmp |= ((data.h_bstop & 0xc0) >> 2); tmp |= ((data.h_sstop & 0x60) << 1); crt_w(CRT_EXT_HOR_TIMING2, tmp); DEBUG printk("CRT_EXT_HOR_TIMING2: %d\n", tmp); tmp = 0x10; /* Line compare bit 10 */ if (data.v_total & 0x400) tmp |= 0x01; if ((data.v_dispend) & 0x400) tmp |= 0x02; if (data.v_bstart & 0x400) tmp |= 0x04; if (data.v_sstart & 0x400) tmp |= 0x08; tmp |= ((data.v_bstop & 0x300) >> 3); if (data.v_sstop & 0x10) tmp |= 0x80; crt_w(CRT_EXT_VER_TIMING, tmp); DEBUG printk("CRT_EXT_VER_TIMING: %d\n", tmp); crt_w(CRT_MONITOR_POWER, 0x00); /* * Convert from ps to Hz. */ freq_f = (1.0/(float)var->pixclock) * 1000000000; freq = ((long)freq_f) * 1000; best_freq = find_fq(freq); pll_w(0x02, best_freq); best_freq = find_fq(61000000); pll_w(0x0a, best_freq); pll_w(0x0e, 0x22); gfx_w(GFX_SET_RESET, 0x00); gfx_w(GFX_ENABLE_SET_RESET, 0x00); gfx_w(GFX_COLOR_COMPARE, 0x00); gfx_w(GFX_DATA_ROTATE, 0x00); gfx_w(GFX_READ_MAP_SELECT, 0x00); gfx_w(GFX_GRAPHICS_MODE, 0x00); gfx_w(GFX_MISC, 0x05); gfx_w(GFX_COLOR_XCARE, 0x0f); gfx_w(GFX_BITMASK, 0xff); reg_r(ACT_ADDRESS_RESET); attr_w(ACT_PALETTE0 , 0x00); attr_w(ACT_PALETTE1 , 0x01); attr_w(ACT_PALETTE2 , 0x02); attr_w(ACT_PALETTE3 , 0x03); attr_w(ACT_PALETTE4 , 0x04); attr_w(ACT_PALETTE5 , 0x05); attr_w(ACT_PALETTE6 , 0x06); attr_w(ACT_PALETTE7 , 0x07); attr_w(ACT_PALETTE8 , 0x08); attr_w(ACT_PALETTE9 , 0x09); attr_w(ACT_PALETTE10, 0x0a); attr_w(ACT_PALETTE11, 0x0b); attr_w(ACT_PALETTE12, 0x0c); attr_w(ACT_PALETTE13, 0x0d); attr_w(ACT_PALETTE14, 0x0e); attr_w(ACT_PALETTE15, 0x0f); reg_r(ACT_ADDRESS_RESET); attr_w(ACT_ATTR_MODE_CNTL, 0x09); /* 0x01 for CL */ attr_w(ACT_OVERSCAN_COLOR, 0x00); attr_w(ACT_COLOR_PLANE_ENA, 0x0f); attr_w(ACT_HOR_PEL_PANNING, 0x00); attr_w(ACT_COLOR_SELECT, 0x00); reg_r(ACT_ADDRESS_RESET); reg_w(ACT_DATA, 0x20); reg_w(VDAC_MASK, 0xff); /* * Extended palette adressing ??? */ switch (bpp){ case 8: reg_w(0x83c6, 0x00); break; case 16: reg_w(0x83c6, 0x60); break; case 24: reg_w(0x83c6, 0xe0); break; default: printk("Illegal color-depth: %i\n", bpp); } reg_w(VDAC_ADDRESS, 0x00); seq_w(SEQ_MAP_MASK, 0x0f ); return 0; } /* * Initialization * * Set the default video mode for this chipset. If a video mode was * specified on the command line, it will override the default mode. */ static int retz3_init(void) { int i; #if 0 volatile unsigned long *CursorBase; #endif unsigned long board_addr, board_size; struct ConfigDev *cd; cd = zorro_get_board (z3_key); zorro_config_board (z3_key, 0); board_addr = (unsigned long)cd->cd_BoardAddr; board_size = (unsigned long)cd->cd_BoardSize; for (i = 0; i < 256; i++){ for (i = 0; i < 256; i++){ retz3_color_table [i][0] = i; retz3_color_table [i][1] = i; retz3_color_table [i][2] = i; retz3_color_table [i][3] = 0; } } *memstart = (*memstart + PAGE_SIZE - 1) & ~(PAGE_SIZE - 1); z3_mem = kernel_map (board_addr, board_size, KERNELMAP_NOCACHE_SER, memstart); z3_regs = (char*) z3_mem; z3_fbmem = z3_mem + VIDEO_MEM_OFFSET; /* Get memory size - for now we asume its a 4MB board */ z3_size = 0x00400000; /* 4 MB */ memset ((char*)z3_fbmem, 0, z3_size); /* Disable hardware cursor */ seq_w(SEQ_CURSOR_Y_INDEX, 0x00); #if 0 /* Initialize hardware cursor */ CursorBase = (unsigned long *)((char *)(z3_mem) + z3_size - 0x400); for (i=0; i < 8; i++){ *(CursorBase +(i*4)) = 0xffffff00; *(CursorBase+1+(i*4)) = 0xffff0000; *(CursorBase+2+(i*4)) = 0xffff0000; *(CursorBase+3+(i*4)) = 0xffff0000; } for (i=8; i < 64; i++){ *(CursorBase +(i*4)) = 0xffff0000; *(CursorBase+1+(i*4)) = 0xffff0000; *(CursorBase+2+(i*4)) = 0xffff0000; *(CursorBase+3+(i*4)) = 0xffff0000; } #endif retz3_setcolreg (255, 56, 100, 160, 0); retz3_setcolreg (254, 0, 0, 0, 0); return 0; } /* * This function should fill in the `fix' structure based on the * values in the `par' structure. */ static int retz3_encode_fix(struct fb_fix_screeninfo *fix, struct retz3_fb_par *par) { int i; strcpy(fix->id, retz3_fb_name); fix->smem_start = z3_fbmem; fix->smem_len = z3_size; fix->type = FB_TYPE_PACKED_PIXELS; fix->type_aux = 0; if (par->bpp == 8) fix->visual = FB_VISUAL_PSEUDOCOLOR; else fix->visual = FB_VISUAL_DIRECTCOLOR; fix->xpanstep = 0; fix->ypanstep = 0; fix->ywrapstep = 0; fix->line_length = 0; for (i = 0; i < arraysize(fix->reserved); i++) fix->reserved[i] = 0; return 0; } /* * Get the video params out of `var'. If a value doesn't fit, round * it up, if it's too big, return -EINVAL. */ static int retz3_decode_var(struct fb_var_screeninfo *var, struct retz3_fb_par *par) { par->xres = var->xres; par->yres = var->yres; par->xres_vir = var->xres_virtual; par->yres_vir = var->yres_virtual; par->bpp = var->bits_per_pixel; par->pixclock = var->pixclock; par->vmode = var->vmode; par->red = var->red; par->green = var->green; par->blue = var->blue; par->transp = var->transp; par->left_margin = var->left_margin; par->right_margin = var->right_margin; par->upper_margin = var->upper_margin; par->lower_margin = var->lower_margin; par->hsync_len = var->hsync_len; par->vsync_len = var->vsync_len; return 0; } /* * Fill the `var' structure based on the values in `par' and maybe * other values read out of the hardware. */ static int retz3_encode_var(struct fb_var_screeninfo *var, struct retz3_fb_par *par) { int i; var->xres = par->xres; var->yres = par->yres; var->xres_virtual = par->xres_vir; var->yres_virtual = par->yres_vir; var->xoffset = 0; var->yoffset = 0; var->bits_per_pixel = par->bpp; var->grayscale = 0; var->red = par->red; var->green = par->green; var->blue = par->blue; var->transp = par->transp; var->nonstd = 0; var->activate = 0; var->height = -1; var->width = -1; var->accel = FB_ACCEL_RETINAZ3; var->pixclock = par->pixclock; var->sync = 0; /* ??? */ var->left_margin = par->left_margin; var->right_margin = par->right_margin; var->upper_margin = par->upper_margin; var->lower_margin = par->lower_margin; var->hsync_len = par->hsync_len; var->vsync_len = par->vsync_len; for (i = 0; i < arraysize(var->reserved); i++) var->reserved[i] = 0; var->vmode = par->vmode; return 0; } /* * Set a single color register. The values supplied are already * rounded down to the hardware's capabilities (according to the * entries in the var structure). Return != 0 for invalid regno. */ static int retz3_setcolreg(unsigned int regno, unsigned int red, unsigned int green, unsigned int blue, unsigned int transp) { /* We'll get to this */ if (regno > 255) return 1; retz3_color_table [regno][0] = red & 0xff; retz3_color_table [regno][1] = green & 0xff; retz3_color_table [regno][2] = blue & 0xff; retz3_color_table [regno][3] = transp; reg_w(VDAC_ADDRESS_W, regno); reg_w(VDAC_DATA, (red & 0xff) >> 2); reg_w(VDAC_DATA, (green & 0xff) >> 2); reg_w(VDAC_DATA, (blue & 0xff) >> 2); return 0; } /* * Read a single color register and split it into * colors/transparent. Return != 0 for invalid regno. */ static int retz3_getcolreg(unsigned int regno, unsigned int *red, unsigned int *green, unsigned int *blue, unsigned int *transp) { if (regno > 255) return 1; *red = retz3_color_table [regno][0]; *green = retz3_color_table [regno][1]; *blue = retz3_color_table [regno][2]; *transp = retz3_color_table [regno][3]; return 0; } /* * (Un)Blank the screen */ void retz3_blank(int blank) { int i; if (blank) for (i = 0; i < 256; i++){ reg_w(VDAC_ADDRESS_W, i); reg_w(VDAC_DATA, 0); reg_w(VDAC_DATA, 0); reg_w(VDAC_DATA, 0); } else for (i = 0; i < 256; i++){ reg_w(VDAC_ADDRESS_W, i); reg_w(VDAC_DATA, retz3_color_table [i][0] >> 2); reg_w(VDAC_DATA, retz3_color_table [i][1] >> 2); reg_w(VDAC_DATA, retz3_color_table [i][2] >> 2); } } void retz3_bitblt (struct fb_var_screeninfo *var, unsigned short srcx, unsigned short srcy, unsigned short destx, unsigned short desty, unsigned short width, unsigned short height, unsigned short cmd, unsigned short mask) { volatile unsigned long *acm = (unsigned long *) (z3_mem + ACM_OFFSET); unsigned long *pattern = (unsigned long *)(z3_fbmem + PAT_MEM_OFF); unsigned short mod; unsigned long tmp; unsigned long pat, src, dst; unsigned char blt_status; int i, xres_virtual = var->xres_virtual; short bpp = (var->bits_per_pixel & 0xff); if (bpp < 8) bpp = 8; tmp = mask | (mask << 16); #if 0 /* * Check for blitter finished before we start messing with the * pattern. */ do{ blt_status = *(((volatile unsigned char *)acm) + (ACM_START_STATUS + 2)); }while ((blt_status & 1) == 0); #endif i = 0; do{ *pattern++ = tmp; }while(i++ < bpp/4); tmp = cmd << 8; *(acm + ACM_RASTEROP_ROTATION/4) = tmp; mod = 0xc0c2; pat = 8 * PAT_MEM_OFF; dst = bpp * (destx + desty * xres_virtual); /* * Source is not set for clear. */ if ((cmd != Z3BLTclear) && (cmd != Z3BLTset)) { src = bpp * (srcx + srcy * xres_virtual); if (destx > srcx) { mod &= ~0x8000; src += bpp * (width - 1); dst += bpp * (width - 1); pat += bpp * 2; } if (desty > srcy) { mod &= ~0x4000; src += bpp * (height - 1) * xres_virtual; dst += bpp * (height - 1) * xres_virtual; pat += bpp * 4; } *(acm + ACM_SOURCE/4) = cpu_to_le32(src); } *(acm + ACM_PATTERN/4) = cpu_to_le32(pat); *(acm + ACM_DESTINATION/4) = cpu_to_le32(dst); tmp = mod << 16; *(acm + ACM_CONTROL/4) = tmp; tmp = width | (height << 16); *(acm + ACM_BITMAP_DIMENSION/4) = cpu_to_le32(tmp); *(((volatile unsigned char *)acm) + ACM_START_STATUS) = 0x00; *(((volatile unsigned char *)acm) + ACM_START_STATUS) = 0x01; /* * No reason to wait for the blitter to finish, it is better * just to check if it has finished before we use it again. */ #if 1 #if 0 while ((*(((volatile unsigned char *)acm) + (ACM_START_STATUS + 2)) & 1) == 0); #else do{ blt_status = *(((volatile unsigned char *)acm) + (ACM_START_STATUS + 2)); } while ((blt_status & 1) == 0); #endif #endif } #if 0 void retz3_fill (unsigned short x, unsigned short y, unsigned short width, unsigned short height, unsigned short mode, unsigned short color) { } #endif /************************************************************** * Move cursor to x, y */ void retz3_MoveCursor (unsigned short x, unsigned short y) { /* Guess we gotta deal with the cursor at some point */ } /* -------------------- Interfaces to hardware functions -------------------- */ static struct fb_hwswitch retz3_switch = { retz3_init, retz3_encode_fix, retz3_decode_var, retz3_encode_var, retz3_getcolreg, retz3_setcolreg, retz3_blank }; /* -------------------- Generic routines ------------------------------------ */ /* * Fill the hardware's `par' structure. */ static void retz3_fb_get_par(struct retz3_fb_par *par) { if (current_par_valid) *par = current_par; else fbhw->decode_var(&retz3_fb_predefined[z3fb_mode], par); } static void retz3_fb_set_par(struct retz3_fb_par *par) { current_par = *par; current_par_valid = 1; } static int do_fb_set_var(struct fb_var_screeninfo *var, int isactive) { int err, activate; struct retz3_fb_par par; if ((err = fbhw->decode_var(var, &par))) return err; activate = var->activate; if ((var->activate & FB_ACTIVATE_MASK) == FB_ACTIVATE_NOW && isactive) retz3_fb_set_par(&par); fbhw->encode_var(var, &par); var->activate = activate; #if 1 retz3_set_video(var, ¤t_par); #endif return 0; } /* * Default Colormaps */ static unsigned short red16[] = { 0x0000, 0x0000, 0x0000, 0x0000, 0xc000, 0xc000, 0xc000, 0xc000, 0x8000, 0x0000, 0x0000, 0x0000, 0xffff, 0xffff, 0xffff, 0xffff }; static unsigned short green16[] = { 0x0000, 0x0000, 0xc000, 0xc000, 0x0000, 0x0000, 0xc000, 0xc000, 0x8000, 0x0000, 0xffff, 0xffff, 0x0000, 0x0000, 0xffff, 0xffff }; static unsigned short blue16[] = { 0x0000, 0xc000, 0x0000, 0xc000, 0x0000, 0xc000, 0x0000, 0xc000, 0x8000, 0xffff, 0x0000, 0xffff, 0x0000, 0xffff, 0x0000, 0xffff }; static struct fb_cmap default_16_colors = { 0, 16, red16, green16, blue16, NULL }; static struct fb_cmap *get_default_colormap(int bpp) { return &default_16_colors; } #define CNVT_TOHW(val,width) ((((val)<<(width))+0x7fff-(val))>>16) #define CNVT_FROMHW(val,width) (((width) ? ((((val)<<16)-(val)) / \ ((1<<(width))-1)) : 0)) static int do_fb_get_cmap(struct fb_cmap *cmap, struct fb_var_screeninfo *var, int kspc) { int i, start; unsigned short *red, *green, *blue, *transp; unsigned int hred, hgreen, hblue, htransp; red = cmap->red; green = cmap->green; blue = cmap->blue; transp = cmap->transp; start = cmap->start; if (start < 0) return -EINVAL; for (i = 0; i < cmap->len; i++) { if (fbhw->getcolreg(start++, &hred, &hgreen, &hblue, &htransp)) return 0; hred = CNVT_FROMHW(hred, var->red.length); hgreen = CNVT_FROMHW(hgreen, var->green.length); hblue = CNVT_FROMHW(hblue, var->blue.length); htransp = CNVT_FROMHW(htransp, var->transp.length); if (kspc) { *red = hred; *green = hgreen; *blue = hblue; if (transp) *transp = htransp; } else { put_user(hred, red); put_user(hgreen, green); put_user(hblue, blue); if (transp) put_user(htransp, transp); } red++; green++; blue++; if (transp) transp++; } return 0; } static int do_fb_set_cmap(struct fb_cmap *cmap, struct fb_var_screeninfo *var, int kspc) { int i, start; unsigned short *red, *green, *blue, *transp; unsigned int hred, hgreen, hblue, htransp; red = cmap->red; green = cmap->green; blue = cmap->blue; transp = cmap->transp; start = cmap->start; if (start < 0) return -EINVAL; for (i = 0; i < cmap->len; i++) { if (kspc) { hred = *red; hgreen = *green; hblue = *blue; htransp = transp ? *transp : 0; } else { get_user(hred, red); get_user(hgreen, green); get_user(hblue, blue); if (transp) get_user(htransp, transp); else htransp = 0; } hred = CNVT_TOHW(hred, var->red.length); hgreen = CNVT_TOHW(hgreen, var->green.length); hblue = CNVT_TOHW(hblue, var->blue.length); htransp = CNVT_TOHW(htransp, var->transp.length); red++; green++; blue++; if (transp) transp++; if (fbhw->setcolreg(start++, hred, hgreen, hblue, htransp)) return 0; } return 0; } static void do_install_cmap(int con) { if (con != currcon) return; if (disp[con].cmap.len) do_fb_set_cmap(&disp[con].cmap, &disp[con].var, 1); else do_fb_set_cmap(get_default_colormap(disp[con].var.bits_per_pixel), &disp[con].var, 1); } static void memcpy_fs(int fsfromto, void *to, void *from, int len) { switch (fsfromto) { case 0: memcpy(to, from, len); return; case 1: copy_from_user(to, from, len); return; case 2: copy_to_user(to, from, len); return; } } static void copy_cmap(struct fb_cmap *from, struct fb_cmap *to, int fsfromto) { int size; int tooff = 0, fromoff = 0; if (to->start > from->start) fromoff = to->start-from->start; else tooff = from->start-to->start; size = to->len-tooff; if (size > from->len-fromoff) size = from->len-fromoff; if (size < 0) return; size *= sizeof(unsigned short); memcpy_fs(fsfromto, to->red+tooff, from->red+fromoff, size); memcpy_fs(fsfromto, to->green+tooff, from->green+fromoff, size); memcpy_fs(fsfromto, to->blue+tooff, from->blue+fromoff, size); if (from->transp && to->transp) memcpy_fs(fsfromto, to->transp+tooff, from->transp+fromoff, size); } static int alloc_cmap(struct fb_cmap *cmap, int len, int transp) { int size = len*sizeof(unsigned short); if (cmap->len != len) { if (cmap->red) kfree(cmap->red); if (cmap->green) kfree(cmap->green); if (cmap->blue) kfree(cmap->blue); if (cmap->transp) kfree(cmap->transp); cmap->red = cmap->green = cmap->blue = cmap->transp = NULL; cmap->len = 0; if (!len) return 0; if (!(cmap->red = kmalloc(size, GFP_ATOMIC))) return -1; if (!(cmap->green = kmalloc(size, GFP_ATOMIC))) return -1; if (!(cmap->blue = kmalloc(size, GFP_ATOMIC))) return -1; if (transp) { if (!(cmap->transp = kmalloc(size, GFP_ATOMIC))) return -1; } else cmap->transp = NULL; } cmap->start = 0; cmap->len = len; copy_cmap(get_default_colormap(len), cmap, 0); return 0; } /* * Get the Fixed Part of the Display */ static int retz3_fb_get_fix(struct fb_fix_screeninfo *fix, int con) { struct retz3_fb_par par; int error = 0; if (con == -1) retz3_fb_get_par(&par); else error = fbhw->decode_var(&disp[con].var, &par); return(error ? error : fbhw->encode_fix(fix, &par)); } /* * Get the User Defined Part of the Display */ static int retz3_fb_get_var(struct fb_var_screeninfo *var, int con) { struct retz3_fb_par par; int error = 0; if (con == -1) { retz3_fb_get_par(&par); error = fbhw->encode_var(var, &par); } else *var = disp[con].var; return error; } static void retz3_fb_set_disp(int con) { struct fb_fix_screeninfo fix; retz3_fb_get_fix(&fix, con); if (con == -1) con = 0; disp[con].screen_base = (unsigned char *)fix.smem_start; disp[con].visual = fix.visual; disp[con].type = fix.type; disp[con].type_aux = fix.type_aux; disp[con].ypanstep = fix.ypanstep; disp[con].ywrapstep = fix.ywrapstep; disp[con].can_soft_blank = 1; disp[con].inverse = z3fb_inverse; } /* * Set the User Defined Part of the Display */ static int retz3_fb_set_var(struct fb_var_screeninfo *var, int con) { int err, oldxres, oldyres, oldvxres, oldvyres, oldbpp; if ((err = do_fb_set_var(var, con == currcon))) return err; if ((var->activate & FB_ACTIVATE_MASK) == FB_ACTIVATE_NOW) { oldxres = disp[con].var.xres; oldyres = disp[con].var.yres; oldvxres = disp[con].var.xres_virtual; oldvyres = disp[con].var.yres_virtual; oldbpp = disp[con].var.bits_per_pixel; disp[con].var = *var; if (oldxres != var->xres || oldyres != var->yres || oldvxres != var->xres_virtual || oldvyres != var->yres_virtual || oldbpp != var->bits_per_pixel) { retz3_fb_set_disp(con); (*fb_info.changevar)(con); alloc_cmap(&disp[con].cmap, 0, 0); do_install_cmap(con); } } var->activate = 0; return 0; } /* * Get the Colormap */ static int retz3_fb_get_cmap(struct fb_cmap *cmap, int kspc, int con) { if (con == currcon) /* current console? */ return(do_fb_get_cmap(cmap, &disp[con].var, kspc)); else if (disp[con].cmap.len) /* non default colormap? */ copy_cmap(&disp[con].cmap, cmap, kspc ? 0 : 2); else copy_cmap(get_default_colormap(disp[con].var.bits_per_pixel), cmap, kspc ? 0 : 2); return 0; } /* * Set the Colormap */ static int retz3_fb_set_cmap(struct fb_cmap *cmap, int kspc, int con) { int err; if (!disp[con].cmap.len) { /* no colormap allocated? */ if ((err = alloc_cmap(&disp[con].cmap, 1<<disp[con].var.bits_per_pixel, 0))) return err; } if (con == currcon) /* current console? */ return(do_fb_set_cmap(cmap, &disp[con].var, kspc)); else copy_cmap(cmap, &disp[con].cmap, kspc ? 0 : 1); return 0; } /* * Pan or Wrap the Display * * This call looks only at xoffset, yoffset and the FB_VMODE_YWRAP flag */ static int retz3_fb_pan_display(struct fb_var_screeninfo *var, int con) { return -EINVAL; } /* * RetinaZ3 Frame Buffer Specific ioctls */ static int retz3_fb_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg, int con) { return -EINVAL; } static struct fb_ops retz3_fb_ops = { retz3_fb_get_fix, retz3_fb_get_var, retz3_fb_set_var, retz3_fb_get_cmap, retz3_fb_set_cmap, retz3_fb_pan_display, retz3_fb_ioctl }; int retz3_probe(void) { z3_key = zorro_find(MANUF_MACROSYSTEMS2, PROD_RETINA_Z3, 0, 0); return(z3_key); } void retz3_video_setup(char *options, int *ints) { char *this_opt; int i; fb_info.fontname[0] = '\0'; if (!options || !*options) return; for (this_opt = strtok(options, ","); this_opt; this_opt = strtok(NULL, ",")){ if (!strcmp(this_opt, "inverse")) { z3fb_inverse = 1; for (i = 0; i < 16; i++) { red16[i] = ~red16[i]; green16[i] = ~green16[i]; blue16[i] = ~blue16[i]; } } else if (!strncmp(this_opt, "font:", 5)) strcpy(fb_info.fontname, this_opt+5); else z3fb_mode = get_video_mode(this_opt); } } /* * Initialization */ __initfunc(struct fb_info *retz3_fb_init(long *mem_start)) { int err; struct retz3_fb_par par; memstart = mem_start; fbhw = &retz3_switch; err = register_framebuffer(retz3_fb_name, &node, &retz3_fb_ops, NUM_TOTAL_MODES, retz3_fb_predefined); if (err < 0) panic("Cannot register frame buffer\n"); fbhw->init(); if (z3fb_mode == -1) z3fb_mode = 1; fbhw->decode_var(&retz3_fb_predefined[z3fb_mode], &par); fbhw->encode_var(&retz3_fb_predefined[0], &par); strcpy(fb_info.modename, retz3_fb_name); fb_info.disp = disp; fb_info.switch_con = &z3fb_switch; fb_info.updatevar = &z3fb_updatevar; fb_info.blank = &z3fb_blank; fb_info.setcmap = &z3fb_setcmap; do_fb_set_var(&retz3_fb_predefined[0], 0); retz3_fb_get_var(&disp[0].var, -1); retz3_fb_set_disp(-1); do_install_cmap(0); return &fb_info; } static int z3fb_switch(int con) { /* Do we have to save the colormap? */ if (disp[currcon].cmap.len) do_fb_get_cmap(&disp[currcon].cmap, &disp[currcon].var, 1); do_fb_set_var(&disp[con].var, 1); currcon = con; /* Install new colormap */ do_install_cmap(con); return 0; } /* * Update the `var' structure (called by fbcon.c) * * This call looks only at yoffset and the FB_VMODE_YWRAP flag in `var'. * Since it's called by a kernel driver, no range checking is done. */ static int z3fb_updatevar(int con) { return 0; } /* * Blank the display. */ static void z3fb_blank(int blank) { fbhw->blank(blank); } /* * Set the colormap */ static int z3fb_setcmap(struct fb_cmap *cmap, int con) { return(retz3_fb_set_cmap(cmap, 1, con)); } /* * Get a Video Mode */ static int get_video_mode(const char *name) { int i; for (i = 1; i <= NUM_PREDEF_MODES; i++) if (!strcmp(name, retz3_fb_modenames[i])){ retz3_fb_predefined[0] = retz3_fb_predefined[i]; return i; } return -1; } |