diff options
Diffstat (limited to 'drivers/video/retz3fb.c')
| -rw-r--r-- | drivers/video/retz3fb.c | 1587 |
1 files changed, 1587 insertions, 0 deletions
diff --git a/drivers/video/retz3fb.c b/drivers/video/retz3fb.c new file mode 100644 index 0000000..5e2c64f --- /dev/null +++ b/drivers/video/retz3fb.c @@ -0,0 +1,1587 @@ +/* + * Linux/drivers/video/retz3fb.c -- 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/module.h> +#include <linux/kernel.h> +#include <linux/errno.h> +#include <linux/string.h> +#include <linux/mm.h> +#include <linux/tty.h> +#include <linux/slab.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 <asm/io.h> + +#include <video/fbcon.h> +#include <video/fbcon-cfb8.h> +#include <video/fbcon-cfb16.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) + +struct retz3fb_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; + + int accel; +}; + +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 */ +}; + +struct retz3_fb_info { + struct fb_info info; + unsigned char *base; + unsigned char *fbmem; + unsigned long fbsize; + volatile unsigned char *regs; + unsigned long physfbmem; + unsigned long physregs; + int current_par_valid; /* set to 0 by memset */ + int blitbusy; + struct display disp; + struct retz3fb_par current_par; + unsigned char color_table [256][3]; +}; + + +static char fontname[40] __initdata = { 0 }; + +#define retz3info(info) ((struct retz3_fb_info *)(info)) +#define fbinfo(info) ((struct fb_info *)(info)) + + +/* + * Frame Buffer Name + */ + +static char retz3fb_name[16] = "RetinaZ3"; + + +/* + * 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 Modes + */ + +static struct { + const char *name; + struct fb_var_screeninfo var; +} retz3fb_predefined[] __initdata = { + /* + * NB: it is very important to adjust the pixel-clock to the color-depth. + */ + + { + "640x480", { /* 640x480, 8 bpp */ + 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_NONE, 39722, 48, 16, 33, 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 + */ + { + "800x600", { /* 800x600, 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_ACCELF_TEXT, 27778, 64, 24, 22, 1, 120, 2, + FB_SYNC_COMP_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED + } + }, + { + "800x600-60", { /* 800x600, 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_ACCELF_TEXT, 25000, 88, 40, 23, 1, 128, 4, + FB_SYNC_COMP_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED + } + }, + { + "800x600-70", { /* 800x600, 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_ACCELF_TEXT, 22272, 40, 24, 15, 9, 144, 12, + FB_SYNC_COMP_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 + */ + { + "1024x768i", { /* 1024x768, 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_ACCELF_TEXT, 22222, 40, 40, 32, 9, 160, 8, + FB_SYNC_COMP_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_INTERLACED + } + }, + { + "1024x768", { + 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_NONE, 12500, 92, 112, 31, 2, 204, 4, + FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED + } + }, + { + "640x480-16", { /* 640x480, 16 bpp */ + 640, 480, 640, 480, 0, 0, 16, 0, + {11, 5, 0}, {5, 6, 0}, {0, 5, 0}, {0, 0, 0}, + 0, 0, -1, -1, 0, 38461/2, 28, 32, 12, 10, 96, 2, + FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,FB_VMODE_NONINTERLACED + } + }, + { + "640x480-24", { /* 640x480, 24 bpp */ + 640, 480, 640, 480, 0, 0, 24, 0, + {8, 8, 8}, {8, 8, 8}, {8, 8, 8}, {0, 0, 0}, + 0, 0, -1, -1, 0, 38461/3, 28, 32, 12, 10, 96, 2, + FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,FB_VMODE_NONINTERLACED + } + }, +}; + + +#define NUM_TOTAL_MODES ARRAY_SIZE(retz3fb_predefined) + +static struct fb_var_screeninfo retz3fb_default; + +static int z3fb_inverse = 0; +static int z3fb_mode __initdata = 0; + + +/* + * Interface used by the world + */ + +int retz3fb_setup(char *options); + +static int retz3fb_get_fix(struct fb_fix_screeninfo *fix, int con, + struct fb_info *info); +static int retz3fb_get_var(struct fb_var_screeninfo *var, int con, + struct fb_info *info); +static int retz3fb_set_var(struct fb_var_screeninfo *var, int con, + struct fb_info *info); +static int retz3fb_get_cmap(struct fb_cmap *cmap, int kspc, int con, + struct fb_info *info); +static int retz3fb_setcolreg(unsigned int regno, unsigned int red, + unsigned int green, unsigned int blue, + unsigned int transp, struct fb_info *info); +static int retz3fb_blank(int blank, struct fb_info *info); + + +/* + * Interface to the low level console driver + */ + +int retz3fb_init(void); +static int z3fb_switch(int con, struct fb_info *info); +static int z3fb_updatevar(int con, struct fb_info *info); + + +/* + * Text console acceleration + */ + +#ifdef FBCON_HAS_CFB8 +static struct display_switch fbcon_retz3_8; +#endif + + +/* + * Accelerated Functions used by the low level console driver + */ + +static void retz3_bitblt(struct display *p, + unsigned short curx, unsigned short cury, unsigned + short destx, unsigned short desty, unsigned short + width, unsigned short height, unsigned short cmd, + unsigned short mask); + +/* + * Hardware Specific Routines + */ + +static int retz3_encode_fix(struct fb_info *info, + struct fb_fix_screeninfo *fix, + struct retz3fb_par *par); +static int retz3_decode_var(struct fb_var_screeninfo *var, + struct retz3fb_par *par); +static int retz3_encode_var(struct fb_var_screeninfo *var, + struct retz3fb_par *par); +static int retz3_getcolreg(unsigned int regno, unsigned int *red, + unsigned int *green, unsigned int *blue, + unsigned int *transp, struct fb_info *info); + +/* + * Internal routines + */ + +static void retz3fb_get_par(struct fb_info *info, struct retz3fb_par *par); +static void retz3fb_set_par(struct fb_info *info, struct retz3fb_par *par); +static int do_fb_set_var(struct fb_info *info, + struct fb_var_screeninfo *var, int isactive); +static void retz3fb_set_disp(int con, struct fb_info *info); +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_info *info, + struct fb_var_screeninfo *var, + struct retz3fb_par *par) +{ + volatile unsigned char *regs = retz3info(info)->regs; + unsigned int 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 /* + 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 - 1; + + 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(KERN_ERR "MAYDAY: v_total >= 1024; bailing out!\n"); + + reg_w(regs, GREG_MISC_OUTPUT_W, 0xe3 | ((clocksel & 3) * 0x04)); + reg_w(regs, GREG_FEATURE_CONTROL_W, 0x00); + + seq_w(regs, SEQ_RESET, 0x00); + seq_w(regs, 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(regs, SEQ_CLOCKING_MODE, 0x01 | 0x00 /* 0x08 */); + + seq_w(regs, SEQ_MAP_MASK, 0x0f); /* enable writing to plane 0-3 */ + seq_w(regs, SEQ_CHAR_MAP_SELECT, 0x00); /* doesn't matter in gfx-mode */ + seq_w(regs, SEQ_MEMORY_MODE, 0x06); /* CL driver says 0x0e for 256 col mode*/ + seq_w(regs, SEQ_RESET, 0x01); + seq_w(regs, SEQ_RESET, 0x03); + + seq_w(regs, SEQ_EXTENDED_ENABLE, 0x05); + + seq_w(regs, SEQ_CURSOR_CONTROL, 0x00); /* disable cursor */ + seq_w(regs, SEQ_PRIM_HOST_OFF_HI, 0x00); + seq_w(regs, SEQ_PRIM_HOST_OFF_HI, 0x00); + seq_w(regs, SEQ_LINEAR_0, 0x4a); + seq_w(regs, SEQ_LINEAR_1, 0x00); + + seq_w(regs, SEQ_SEC_HOST_OFF_HI, 0x00); + seq_w(regs, SEQ_SEC_HOST_OFF_LO, 0x00); + seq_w(regs, 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(regs, SEQ_EXT_CLOCK_MODE, 0x10); + seq_w(regs, 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(regs, SEQ_EXT_PIXEL_CNTL, 0x01 | (((bpp / 8) - 1) << 4)); + + seq_w(regs, SEQ_BUS_WIDTH_FEEDB, 0x04); + seq_w(regs, SEQ_COLOR_EXP_WFG, 0x01); + seq_w(regs, SEQ_COLOR_EXP_WBG, 0x00); + seq_w(regs, SEQ_EXT_RW_CONTROL, 0x00); + seq_w(regs, SEQ_MISC_FEATURE_SEL, (0x51 | (clocksel & 8))); + seq_w(regs, SEQ_COLOR_KEY_CNTL, 0x40); + seq_w(regs, SEQ_COLOR_KEY_MATCH0, 0x00); + seq_w(regs, SEQ_COLOR_KEY_MATCH1, 0x00); + seq_w(regs, SEQ_COLOR_KEY_MATCH2, 0x00); + seq_w(regs, SEQ_CRC_CONTROL, 0x00); + seq_w(regs, SEQ_PERF_SELECT, 0x10); + seq_w(regs, SEQ_ACM_APERTURE_1, 0x00); + seq_w(regs, SEQ_ACM_APERTURE_2, 0x30); + seq_w(regs, SEQ_ACM_APERTURE_3, 0x00); + seq_w(regs, SEQ_MEMORY_MAP_CNTL, 0x03); + + + /* unlock register CRT0..CRT7 */ + crt_w(regs, 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(regs, CRT_HOR_TOTAL, data.h_total & 0xff); + + DEBUG printk("CRT_HOR_DISP_ENA_END: %ld\n", data.h_dispend); + crt_w(regs, CRT_HOR_DISP_ENA_END, (data.h_dispend) & 0xff); + + DEBUG printk("CRT_START_HOR_BLANK: %ld\n", data.h_bstart); + crt_w(regs, CRT_START_HOR_BLANK, data.h_bstart & 0xff); + + DEBUG printk("CRT_END_HOR_BLANK: 128+%ld\n", data.h_bstop % 32); + crt_w(regs, CRT_END_HOR_BLANK, 0x80 | (data.h_bstop & 0x1f)); + + DEBUG printk("CRT_START_HOR_RETR: %ld\n", data.h_sstart); + crt_w(regs, 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(regs, CRT_END_HOR_RETR, tmp); + + DEBUG printk("CRT_VER_TOTAL: %ld\n", data.v_total & 0xff); + crt_w(regs, 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(regs, CRT_OVERFLOW, tmp); + + crt_w(regs, 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(regs, CRT_MAX_SCAN_LINE, tmp); + + crt_w(regs, CRT_CURSOR_START, 0x00); + crt_w(regs, CRT_CURSOR_END, 8 & 0x1f); /* font height */ + + crt_w(regs, CRT_START_ADDR_HIGH, 0x00); + crt_w(regs, CRT_START_ADDR_LOW, 0x00); + + crt_w(regs, CRT_CURSOR_LOC_HIGH, 0x00); + crt_w(regs, CRT_CURSOR_LOC_LOW, 0x00); + + DEBUG printk("CRT_START_VER_RETR: %ld\n", data.v_sstart & 0xff); + crt_w(regs, 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(regs, 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(regs, 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(regs, CRT_VER_DISP_ENA_END, (data.v_dispend & 0xff)); + + DEBUG printk("CRT_START_VER_BLANK: %ld\n", data.v_bstart & 0xff); + crt_w(regs, CRT_START_VER_BLANK, (data.v_bstart & 0xff)); + + DEBUG printk("CRT_END_VER_BLANK: %ld\n", data.v_bstop & 0xff); + crt_w(regs, CRT_END_VER_BLANK, (data.v_bstop & 0xff)); + + DEBUG printk("CRT_MODE_CONTROL: 0xe3\n"); + crt_w(regs, CRT_MODE_CONTROL, 0xe3); + + DEBUG printk("CRT_LINE_COMPARE: 0xff\n"); + crt_w(regs, CRT_LINE_COMPARE, 0xff); + + tmp = (var->xres_virtual / 8) * (bpp / 8); + crt_w(regs, CRT_OFFSET, tmp); + + crt_w(regs, 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(regs, CRT_EXT_HOR_TIMING1, tmp); + + tmp = 0x00; + if (((var->xres_virtual / 8) * (bpp / 8)) & 0x100) + tmp |= 0x10; + crt_w(regs, 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(regs, 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(regs, CRT_EXT_VER_TIMING, tmp); + DEBUG printk("CRT_EXT_VER_TIMING: %d\n", tmp); + + crt_w(regs, CRT_MONITOR_POWER, 0x00); + + /* + * Convert from ps to Hz. + */ + freq = 2000000000 / var->pixclock; + freq = freq * 500; + + best_freq = find_fq(freq); + pll_w(regs, 0x02, best_freq); + best_freq = find_fq(61000000); + pll_w(regs, 0x0a, best_freq); + pll_w(regs, 0x0e, 0x22); + + gfx_w(regs, GFX_SET_RESET, 0x00); + gfx_w(regs, GFX_ENABLE_SET_RESET, 0x00); + gfx_w(regs, GFX_COLOR_COMPARE, 0x00); + gfx_w(regs, GFX_DATA_ROTATE, 0x00); + gfx_w(regs, GFX_READ_MAP_SELECT, 0x00); + gfx_w(regs, GFX_GRAPHICS_MODE, 0x00); + gfx_w(regs, GFX_MISC, 0x05); + gfx_w(regs, GFX_COLOR_XCARE, 0x0f); + gfx_w(regs, GFX_BITMASK, 0xff); + + reg_r(regs, ACT_ADDRESS_RESET); + attr_w(regs, ACT_PALETTE0 , 0x00); + attr_w(regs, ACT_PALETTE1 , 0x01); + attr_w(regs, ACT_PALETTE2 , 0x02); + attr_w(regs, ACT_PALETTE3 , 0x03); + attr_w(regs, ACT_PALETTE4 , 0x04); + attr_w(regs, ACT_PALETTE5 , 0x05); + attr_w(regs, ACT_PALETTE6 , 0x06); + attr_w(regs, ACT_PALETTE7 , 0x07); + attr_w(regs, ACT_PALETTE8 , 0x08); + attr_w(regs, ACT_PALETTE9 , 0x09); + attr_w(regs, ACT_PALETTE10, 0x0a); + attr_w(regs, ACT_PALETTE11, 0x0b); + attr_w(regs, ACT_PALETTE12, 0x0c); + attr_w(regs, ACT_PALETTE13, 0x0d); + attr_w(regs, ACT_PALETTE14, 0x0e); + attr_w(regs, ACT_PALETTE15, 0x0f); + reg_r(regs, ACT_ADDRESS_RESET); + + attr_w(regs, ACT_ATTR_MODE_CNTL, 0x09); /* 0x01 for CL */ + + attr_w(regs, ACT_OVERSCAN_COLOR, 0x00); + attr_w(regs, ACT_COLOR_PLANE_ENA, 0x0f); + attr_w(regs, ACT_HOR_PEL_PANNING, 0x00); + attr_w(regs, ACT_COLOR_SELECT, 0x00); + + reg_r(regs, ACT_ADDRESS_RESET); + reg_w(regs, ACT_DATA, 0x20); + + reg_w(regs, VDAC_MASK, 0xff); + + /* + * Extended palette addressing ??? + */ + switch (bpp){ + case 8: + reg_w(regs, 0x83c6, 0x00); + break; + case 16: + reg_w(regs, 0x83c6, 0x60); + break; + case 24: + reg_w(regs, 0x83c6, 0xe0); + break; + default: + printk(KERN_INFO "Illegal color-depth: %i\n", bpp); + } + + reg_w(regs, VDAC_ADDRESS, 0x00); + + seq_w(regs, SEQ_MAP_MASK, 0x0f ); + + 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_info *info, + struct fb_fix_screeninfo *fix, + struct retz3fb_par *par) +{ + struct retz3_fb_info *zinfo = retz3info(info); + + memset(fix, 0, sizeof(struct fb_fix_screeninfo)); + strcpy(fix->id, retz3fb_name); + fix->smem_start = zinfo->physfbmem; + fix->smem_len = zinfo->fbsize; + fix->mmio_start = zinfo->physregs; + fix->mmio_len = 0x00c00000; + + fix->type = FB_TYPE_PACKED_PIXELS; + fix->type_aux = 0; + if (par->bpp == 8) + fix->visual = FB_VISUAL_PSEUDOCOLOR; + else + fix->visual = FB_VISUAL_TRUECOLOR; + + fix->xpanstep = 0; + fix->ypanstep = 0; + fix->ywrapstep = 0; + fix->line_length = 0; + + fix->accel = FB_ACCEL_NCR_77C32BLT; + + 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 retz3fb_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; + + if (var->accel_flags & FB_ACCELF_TEXT) + par->accel = FB_ACCELF_TEXT; + else + par->accel = 0; + + 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 retz3fb_par *par) +{ + memset(var, 0, sizeof(struct fb_var_screeninfo)); + 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_flags = (par->accel && par->bpp == 8) ? FB_ACCELF_TEXT : 0; + + 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; + + var->vmode = par->vmode; + return 0; +} + + +/* + * Set a single color register. Return != 0 for invalid regno. + */ + +static int retz3fb_setcolreg(unsigned int regno, unsigned int red, + unsigned int green, unsigned int blue, + unsigned int transp, struct fb_info *info) +{ + struct retz3_fb_info *zinfo = retz3info(info); + volatile unsigned char *regs = zinfo->regs; + + /* We'll get to this */ + + if (regno > 255) + return 1; + + red >>= 10; + green >>= 10; + blue >>= 10; + + zinfo->color_table[regno][0] = red; + zinfo->color_table[regno][1] = green; + zinfo->color_table[regno][2] = blue; + + reg_w(regs, VDAC_ADDRESS_W, regno); + reg_w(regs, VDAC_DATA, red); + reg_w(regs, VDAC_DATA, green); + reg_w(regs, VDAC_DATA, blue); + + 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, struct fb_info *info) +{ + struct retz3_fb_info *zinfo = retz3info(info); + int t; + + if (regno > 255) + return 1; + t = zinfo->color_table[regno][0]; + *red = (t<<10) | (t<<4) | (t>>2); + t = zinfo->color_table[regno][1]; + *green = (t<<10) | (t<<4) | (t>>2); + t = zinfo->color_table[regno][2]; + *blue = (t<<10) | (t<<4) | (t>>2); + *transp = 0; + return 0; +} + + +static inline void retz3_busy(struct display *p) +{ + struct retz3_fb_info *zinfo = retz3info(p->fb_info); + volatile unsigned char *acm = zinfo->base + ACM_OFFSET; + unsigned char blt_status; + + if (zinfo->blitbusy) { + do{ + blt_status = *((acm) + (ACM_START_STATUS + 2)); + }while ((blt_status & 1) == 0); + zinfo->blitbusy = 0; + } +} + + +static void retz3_bitblt (struct display *p, + unsigned short srcx, unsigned short srcy, + unsigned short destx, unsigned short desty, + unsigned short width, unsigned short height, + unsigned short cmd, unsigned short mask) +{ + struct fb_var_screeninfo *var = &p->var; + struct retz3_fb_info *zinfo = retz3info(p->fb_info); + volatile unsigned long *acm = (unsigned long *)(zinfo->base + ACM_OFFSET); + unsigned long *pattern = (unsigned long *)(zinfo->fbmem + PAT_MEM_OFF); + + unsigned short mod; + unsigned long tmp; + unsigned long pat, src, dst; + + int i, xres_virtual = var->xres_virtual; + short bpp = (var->bits_per_pixel & 0xff); + + if (bpp < 8) + bpp = 8; + + tmp = mask | (mask << 16); + + retz3_busy(p); + + 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; + zinfo->blitbusy = 1; +} + +#if 0 +/* + * Move cursor to x, y + */ +static void retz3_MoveCursor (unsigned short x, unsigned short y) +{ + /* Guess we gotta deal with the cursor at some point */ +} +#endif + + +/* + * Fill the hardware's `par' structure. + */ + +static void retz3fb_get_par(struct fb_info *info, struct retz3fb_par *par) +{ + struct retz3_fb_info *zinfo = retz3info(info); + + if (zinfo->current_par_valid) + *par = zinfo->current_par; + else + retz3_decode_var(&retz3fb_default, par); +} + + +static void retz3fb_set_par(struct fb_info *info, struct retz3fb_par *par) +{ + struct retz3_fb_info *zinfo = retz3info(info); + + zinfo->current_par = *par; + zinfo->current_par_valid = 1; +} + + +static int do_fb_set_var(struct fb_info *info, + struct fb_var_screeninfo *var, int isactive) +{ + int err, activate; + struct retz3fb_par par; + struct retz3_fb_info *zinfo = retz3info(info); + + if ((err = retz3_decode_var(var, &par))) + return err; + activate = var->activate; + + /* XXX ... what to do about isactive ? */ + + if ((var->activate & FB_ACTIVATE_MASK) == FB_ACTIVATE_NOW && isactive) + retz3fb_set_par(info, &par); + retz3_encode_var(var, &par); + var->activate = activate; + + retz3_set_video(info, var, &zinfo->current_par); + + return 0; +} + +/* + * Get the Fixed Part of the Display + */ + +static int retz3fb_get_fix(struct fb_fix_screeninfo *fix, int con, + struct fb_info *info) +{ + struct retz3fb_par par; + int error = 0; + + if (con == -1) + retz3fb_get_par(info, &par); + else + error = retz3_decode_var(&fb_display[con].var, &par); + return(error ? error : retz3_encode_fix(info, fix, &par)); +} + + +/* + * Get the User Defined Part of the Display + */ + +static int retz3fb_get_var(struct fb_var_screeninfo *var, int con, + struct fb_info *info) +{ + struct retz3fb_par par; + int error = 0; + + if (con == -1) { + retz3fb_get_par(info, &par); + error = retz3_encode_var(var, &par); + } else + *var = fb_display[con].var; + return error; +} + + +static void retz3fb_set_disp(int con, struct fb_info *info) +{ + struct fb_fix_screeninfo fix; + struct display *display; + struct retz3_fb_info *zinfo = retz3info(info); + + if (con >= 0) + display = &fb_display[con]; + else + display = &zinfo->disp; /* used during initialization */ + + retz3fb_get_fix(&fix, con, info); + + if (con == -1) + con = 0; + + display->visual = fix.visual; + display->type = fix.type; + display->type_aux = fix.type_aux; + display->ypanstep = fix.ypanstep; + display->ywrapstep = fix.ywrapstep; + display->can_soft_blank = 1; + display->inverse = z3fb_inverse; + + /* + * This seems to be about 20% faster. + */ + display->scrollmode = SCROLL_YREDRAW; + + switch (display->var.bits_per_pixel) { +#ifdef FBCON_HAS_CFB8 + case 8: + if (display->var.accel_flags & FB_ACCELF_TEXT) { + display->dispsw = &fbcon_retz3_8; + retz3_set_video(info, &display->var, &zinfo->current_par); + } else + display->dispsw = &fbcon_cfb8; + break; +#endif +#ifdef FBCON_HAS_CFB16 + case 16: + display->dispsw = &fbcon_cfb16; + break; +#endif + default: + display->dispsw = &fbcon_dummy; + break; + } +} + + +/* + * Set the User Defined Part of the Display + */ + +static int retz3fb_set_var(struct fb_var_screeninfo *var, int con, + struct fb_info *info) +{ + int err, oldxres, oldyres, oldvxres, oldvyres, oldbpp, oldaccel; + struct display *display; + struct retz3_fb_info *zinfo = retz3info(info); + + if (con >= 0) + display = &fb_display[con]; + else + display = &zinfo->disp; /* used during initialization */ + + if ((err = do_fb_set_var(info, var, con == info->currcon))) + return err; + if ((var->activate & FB_ACTIVATE_MASK) == FB_ACTIVATE_NOW) { + oldxres = display->var.xres; + oldyres = display->var.yres; + oldvxres = display->var.xres_virtual; + oldvyres = display->var.yres_virtual; + oldbpp = display->var.bits_per_pixel; + oldaccel = display->var.accel_flags; + display->var = *var; + + if (oldxres != var->xres || oldyres != var->yres || + oldvxres != var->xres_virtual || + oldvyres != var->yres_virtual || + oldbpp != var->bits_per_pixel || + oldaccel != var->accel_flags) { + + struct fb_fix_screeninfo fix; + retz3fb_get_fix(&fix, con, info); + + display->visual = fix.visual; + display->type = fix.type; + display->type_aux = fix.type_aux; + display->ypanstep = fix.ypanstep; + display->ywrapstep = fix.ywrapstep; + display->line_length = fix.line_length; + display->can_soft_blank = 1; + display->inverse = z3fb_inverse; + switch (display->var.bits_per_pixel) { +#ifdef FBCON_HAS_CFB8 + case 8: + if (var->accel_flags & FB_ACCELF_TEXT) { + display->dispsw = &fbcon_retz3_8; + } else + display->dispsw = &fbcon_cfb8; + break; +#endif +#ifdef FBCON_HAS_CFB16 + case 16: + display->dispsw = &fbcon_cfb16; + break; +#endif + default: + display->dispsw = &fbcon_dummy; + break; + } + /* + * We still need to find a way to tell the X + * server that the video mem has been fiddled with + * so it redraws the entire screen when switching + * between X and a text console. + */ + retz3_set_video(info, var, &zinfo->current_par); + + if (info->changevar) + (*info->changevar)(con); + } + + if (oldbpp != var->bits_per_pixel) { + if ((err = fb_alloc_cmap(&display->cmap, 0, 0))) + return err; + do_install_cmap(con, info); + } + } + return 0; +} + + +/* + * Get the Colormap + */ + +static int retz3fb_get_cmap(struct fb_cmap *cmap, int kspc, int con, + struct fb_info *info) +{ + if (con == info->currcon) /* current console? */ + return(fb_get_cmap(cmap, kspc, retz3_getcolreg, info)); + else if (fb_display[con].cmap.len) /* non default colormap? */ + fb_copy_cmap(&fb_display[con].cmap, cmap, kspc ? 0 : 2); + else + fb_copy_cmap(fb_default_cmap(1<<fb_display[con].var.bits_per_pixel), + cmap, kspc ? 0 : 2); + return 0; +} + +/* + * Blank the display. + */ + +static int retz3fb_blank(int blank, struct fb_info *info) +{ + struct retz3_fb_info *zinfo = retz3info(info); + volatile unsigned char *regs = retz3info(info)->regs; + short i; + + if (blank) + for (i = 0; i < 256; i++){ + reg_w(regs, VDAC_ADDRESS_W, i); + reg_w(regs, VDAC_DATA, 0); + reg_w(regs, VDAC_DATA, 0); + reg_w(regs, VDAC_DATA, 0); + } + else + for (i = 0; i < 256; i++){ + reg_w(regs, VDAC_ADDRESS_W, i); + reg_w(regs, VDAC_DATA, zinfo->color_table[i][0]); + reg_w(regs, VDAC_DATA, zinfo->color_table[i][1]); + reg_w(regs, VDAC_DATA, zinfo->color_table[i][2]); + } + return 0; +} + +static struct fb_ops retz3fb_ops = { + .owner = THIS_MODULE, + .fb_get_fix = retz3fb_get_fix, + .fb_get_var = retz3fb_get_var, + .fb_set_var = retz3fb_set_var, + .fb_get_cmap = retz3fb_get_cmap, + .fb_set_cmap = gen_set_cmap, + .fb_setcolreg = retz3fb_setcolreg, + .fb_blank = retz3fb_blank, +}; + +int __init retz3fb_setup(char *options) +{ + char *this_opt; + + if (!options || !*options) + return 0; + + while ((this_opt = strsep(&options, ",")) != NULL) { + if (!*this_opt) + continue; + if (!strcmp(this_opt, "inverse")) { + z3fb_inverse = 1; + fb_invert_cmaps(); + } else if (!strncmp(this_opt, "font:", 5)) { + strlcpy(fontname, this_opt+5, sizeof(fontname)); + } else + z3fb_mode = get_video_mode(this_opt); + } + return 0; +} + + +/* + * Initialization + */ + +int __init retz3fb_init(void) +{ + unsigned long board_addr, board_size; + struct zorro_dev *z = NULL; + volatile unsigned char *regs; + struct retz3fb_par par; + struct retz3_fb_info *zinfo; + struct fb_info *fb_info; + short i; + int res = -ENXIO; + + while ((z = zorro_find_device(ZORRO_PROD_MACROSYSTEMS_RETINA_Z3, z))) { + board_addr = z->resource.start; + board_size = z->resource.end-z->resource.start+1; + if (!request_mem_region(board_addr, 0x0c00000, + "ncr77c32blt")) { + continue; + if (!request_mem_region(board_addr+VIDEO_MEM_OFFSET, + 0x00400000, "RAM")) + release_mem_region(board_addr, 0x00c00000); + continue; + } + if (!(zinfo = kmalloc(sizeof(struct retz3_fb_info), + GFP_KERNEL))) + return -ENOMEM; + memset(zinfo, 0, sizeof(struct retz3_fb_info)); + + zinfo->base = ioremap(board_addr, board_size); + zinfo->regs = zinfo->base; + zinfo->fbmem = zinfo->base + VIDEO_MEM_OFFSET; + /* Get memory size - for now we asume it's a 4MB board */ + zinfo->fbsize = 0x00400000; /* 4 MB */ + zinfo->physregs = board_addr; + zinfo->physfbmem = board_addr + VIDEO_MEM_OFFSET; + + fb_info = fbinfo(zinfo); + + for (i = 0; i < 256; i++){ + for (i = 0; i < 256; i++){ + zinfo->color_table[i][0] = i; + zinfo->color_table[i][1] = i; + zinfo->color_table[i][2] = i; + } + } + + regs = zinfo->regs; + /* Disable hardware cursor */ + seq_w(regs, SEQ_CURSOR_Y_INDEX, 0x00); + + retz3fb_setcolreg (255, 56<<8, 100<<8, 160<<8, 0, fb_info); + retz3fb_setcolreg (254, 0, 0, 0, 0, fb_info); + + strcpy(fb_info->modename, retz3fb_name); + fb_info->changevar = NULL; + fb_info->fbops = &retz3fb_ops; + fb_info->screen_base = zinfo->fbmem; + fb_info->disp = &zinfo->disp; + fb_info->currcon = -1; + fb_info->switch_con = &z3fb_switch; + fb_info->updatevar = &z3fb_updatevar; + fb_info->flags = FBINFO_FLAG_DEFAULT; + strlcpy(fb_info->fontname, fontname, sizeof(fb_info->fontname)); + + if (z3fb_mode == -1) + retz3fb_default = retz3fb_predefined[0].var; + + retz3_decode_var(&retz3fb_default, &par); + retz3_encode_var(&retz3fb_default, &par); + + do_fb_set_var(fb_info, &retz3fb_default, 0); + retz3fb_get_var(&zinfo->disp.var, -1, fb_info); + + retz3fb_set_disp(-1, fb_info); + + do_install_cmap(0, fb_info); + + if (register_framebuffer(fb_info) < 0) + return -EINVAL; + + printk(KERN_INFO "fb%d: %s frame buffer device, using %ldK of " + "video memory\n", fb_info->node, + fb_info->modename, zinfo->fbsize>>10); + + /* FIXME: This driver cannot be unloaded yet */ + res = 0; + } + return res; +} + + +static int z3fb_switch(int con, struct fb_info *info) +{ + /* Do we have to save the colormap? */ + if (fb_display[info->currcon].cmap.len) + fb_get_cmap(&fb_display[info->currcon].cmap, 1, + retz3_getcolreg, info); + + do_fb_set_var(info, &fb_display[con].var, 1); + info->currcon = con; + /* Install new colormap */ + do_install_cmap(con, info); + 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, struct fb_info *info) +{ + return 0; +} + +/* + * Get a Video Mode + */ + +static int __init get_video_mode(const char *name) +{ + short i; + + for (i = 0; i < NUM_TOTAL_MODES; i++) + if (!strcmp(name, retz3fb_predefined[i].name)){ + retz3fb_default = retz3fb_predefined[i].var; + return i; + } + return -1; +} + + +#ifdef MODULE +MODULE_LICENSE("GPL"); + +int init_module(void) +{ + return retz3fb_init(); +} +#endif + + +/* + * Text console acceleration + */ + +#ifdef FBCON_HAS_CFB8 +static void retz3_8_bmove(struct display *p, int sy, int sx, + int dy, int dx, int height, int width) +{ + int fontwidth = fontwidth(p); + + sx *= fontwidth; + dx *= fontwidth; + width *= fontwidth; + + retz3_bitblt(p, + (unsigned short)sx, + (unsigned short)(sy*fontheight(p)), + (unsigned short)dx, + (unsigned short)(dy*fontheight(p)), + (unsigned short)width, + (unsigned short)(height*fontheight(p)), + Z3BLTcopy, + 0xffff); +} + +static void retz3_8_clear(struct vc_data *conp, struct display *p, + int sy, int sx, int height, int width) +{ + unsigned short col; + int fontwidth = fontwidth(p); + + sx *= fontwidth; + width *= fontwidth; + + col = attr_bgcol_ec(p, conp); + col &= 0xff; + col |= (col << 8); + + retz3_bitblt(p, + (unsigned short)sx, + (unsigned short)(sy*fontheight(p)), + (unsigned short)sx, + (unsigned short)(sy*fontheight(p)), + (unsigned short)width, + (unsigned short)(height*fontheight(p)), + Z3BLTset, + col); +} + + +static void retz3_putc(struct vc_data *conp, struct display *p, int c, + int yy, int xx) +{ + retz3_busy(p); + fbcon_cfb8_putc(conp, p, c, yy, xx); +} + + +static void retz3_putcs(struct vc_data *conp, struct display *p, + const unsigned short *s, int count, + int yy, int xx) +{ + retz3_busy(p); + fbcon_cfb8_putcs(conp, p, s, count, yy, xx); +} + + +static void retz3_revc(struct display *p, int xx, int yy) +{ + retz3_busy(p); + fbcon_cfb8_revc(p, xx, yy); +} + + +static void retz3_clear_margins(struct vc_data* conp, struct display* p, + int bottom_only) +{ + retz3_busy(p); + fbcon_cfb8_clear_margins(conp, p, bottom_only); +} + + +static struct display_switch fbcon_retz3_8 = { + .setup = fbcon_cfb8_setup, + .bmove = retz3_8_bmove, + .clear = retz3_8_clear, + .putc = retz3_putc, + .putcs = retz3_putcs, + .revc = retz3_revc, + .clear_margins = retz3_clear_margins, + .fontwidthmask = FONTWIDTH(8) +}; +#endif |
