| /* |
| * valkyriefb.c -- frame buffer device for the PowerMac 'valkyrie' display |
| * |
| * Created 8 August 1998 by |
| * Martin Costabel <costabel@wanadoo.fr> and Kevin Schoedel |
| * |
| * Vmode-switching changes and vmode 15/17 modifications created 29 August |
| * 1998 by Barry K. Nathan <barryn@pobox.com>. |
| * |
| * Ported to m68k Macintosh by David Huggins-Daines <dhd@debian.org> |
| * |
| * Derived directly from: |
| * |
| * controlfb.c -- frame buffer device for the PowerMac 'control' display |
| * Copyright (C) 1998 Dan Jacobowitz <dan@debian.org> |
| * |
| * pmc-valkyrie.c -- Console support for PowerMac "valkyrie" display adaptor. |
| * Copyright (C) 1997 Paul Mackerras. |
| * |
| * and indirectly: |
| * |
| * Frame buffer structure from: |
| * drivers/video/chipsfb.c -- frame buffer device for |
| * Chips & Technologies 65550 chip. |
| * |
| * Copyright (C) 1998 Paul Mackerras |
| * |
| * This file is derived from the Powermac "chips" driver: |
| * Copyright (C) 1997 Fabio Riccardi. |
| * And from the frame buffer device for Open Firmware-initialized devices: |
| * Copyright (C) 1997 Geert Uytterhoeven. |
| * |
| * Hardware information from: |
| * control.c: Console support for PowerMac "control" display adaptor. |
| * Copyright (C) 1996 Paul Mackerras |
| * |
| * 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/config.h> |
| #include <linux/module.h> |
| #include <linux/kernel.h> |
| #include <linux/errno.h> |
| #include <linux/string.h> |
| #include <linux/mm.h> |
| #include <linux/tty.h> |
| #include <linux/slab.h> |
| #include <linux/vmalloc.h> |
| #include <linux/delay.h> |
| #include <linux/interrupt.h> |
| #include <linux/fb.h> |
| #include <linux/selection.h> |
| #include <linux/init.h> |
| #include <linux/pci.h> |
| #include <linux/nvram.h> |
| #include <linux/adb.h> |
| #include <linux/cuda.h> |
| #include <asm/io.h> |
| #ifdef CONFIG_MAC |
| #include <asm/bootinfo.h> |
| #include <asm/macintosh.h> |
| #else |
| #include <asm/prom.h> |
| #endif |
| #include <asm/pgtable.h> |
| |
| #include <video/fbcon.h> |
| #include <video/fbcon-cfb8.h> |
| #include <video/fbcon-cfb16.h> |
| #include <video/macmodes.h> |
| |
| #include "valkyriefb.h" |
| |
| static int can_soft_blank = 1; |
| |
| #ifdef CONFIG_MAC |
| /* We don't yet have functions to read the PRAM... perhaps we can |
| adapt them from the PPC code? */ |
| static int default_vmode = VMODE_640_480_67; |
| static int default_cmode = CMODE_8; |
| #else |
| static int default_vmode = VMODE_NVRAM; |
| static int default_cmode = CMODE_NVRAM; |
| #endif |
| static char fontname[40] __initdata = { 0 }; |
| |
| static int switching = 0; |
| |
| struct fb_par_valkyrie { |
| int vmode, cmode; |
| int xres, yres; |
| int vxres, vyres; |
| int xoffset, yoffset; |
| }; |
| |
| struct fb_info_valkyrie { |
| struct fb_info info; |
| struct fb_fix_screeninfo fix; |
| struct fb_var_screeninfo var; |
| struct display disp; |
| struct fb_par_valkyrie par; |
| struct { |
| __u8 red, green, blue; |
| } palette[256]; |
| |
| struct cmap_regs *cmap_regs; |
| unsigned long cmap_regs_phys; |
| |
| struct valkyrie_regs *valkyrie_regs; |
| unsigned long valkyrie_regs_phys; |
| |
| __u8 *frame_buffer; |
| unsigned long frame_buffer_phys; |
| |
| int sense; |
| unsigned long total_vram; |
| #ifdef FBCON_HAS_CFB16 |
| u16 fbcon_cfb16_cmap[16]; |
| #endif |
| }; |
| |
| /* |
| * Exported functions |
| */ |
| int valkyriefb_init(void); |
| int valkyriefb_setup(char*); |
| |
| static int valkyrie_set_var(struct fb_var_screeninfo *var, int con, |
| struct fb_info *info); |
| static int valkyrie_get_cmap(struct fb_cmap *cmap, int kspc, int con, |
| struct fb_info *info); |
| static int valkyriefb_setcolreg(u_int regno, u_int red, u_int green, u_int blue, |
| u_int transp, struct fb_info *info); |
| static int valkyriefb_blank(int blank_mode, struct fb_info *info); |
| |
| static int read_valkyrie_sense(struct fb_info_valkyrie *p); |
| static inline int valkyrie_vram_reqd(int video_mode, int color_mode); |
| static void set_valkyrie_clock(unsigned char *params); |
| static void valkyrie_set_par(const struct fb_par_valkyrie *p, struct fb_info_valkyrie *info); |
| static inline int valkyrie_par_to_var(struct fb_par_valkyrie *par, struct fb_var_screeninfo *var); |
| static int valkyrie_var_to_par(struct fb_var_screeninfo *var, |
| struct fb_par_valkyrie *par, const struct fb_info *fb_info); |
| |
| static void valkyrie_init_info(struct fb_info *info, struct fb_info_valkyrie *p); |
| static void valkyrie_par_to_display(struct fb_par_valkyrie *par, |
| struct display *disp, struct fb_fix_screeninfo *fix, struct fb_info_valkyrie *p); |
| static void valkyrie_init_display(struct display *disp); |
| static void valkyrie_par_to_fix(struct fb_par_valkyrie *par, struct fb_fix_screeninfo *fix, |
| struct fb_info_valkyrie *p); |
| static void valkyrie_init_fix(struct fb_fix_screeninfo *fix, struct fb_info_valkyrie *p); |
| |
| static struct fb_ops valkyriefb_ops = { |
| .owner = THIS_MODULE, |
| .fb_set_var = valkyrie_set_var, |
| .fb_get_cmap = valkyrie_get_cmap, |
| .fb_set_cmap = gen_set_cmap, |
| .fb_setcolreg = valkyriefb_setcolreg, |
| .fb_blank = valkyriefb_blank, |
| }; |
| |
| static int valkyriefb_getcolreg(u_int regno, u_int *red, u_int *green, |
| u_int *blue, u_int *transp, struct fb_info *info); |
| |
| /* Sets everything according to var */ |
| static int valkyrie_set_var(struct fb_var_screeninfo *var, int con, |
| struct fb_info *info) |
| { |
| struct fb_info_valkyrie *p = (struct fb_info_valkyrie *) info; |
| struct display *disp; |
| struct fb_par_valkyrie par; |
| int depthchange, err; |
| |
| disp = (con >= 0) ? &fb_display[con] : &p->disp; |
| if ((err = valkyrie_var_to_par(var, &par, info))) { |
| /* printk (KERN_ERR "Error in valkyrie_set_var, calling valkyrie_var_to_par: %d.\n", err); */ |
| return err; |
| } |
| |
| if ((var->activate & FB_ACTIVATE_MASK) != FB_ACTIVATE_NOW) { |
| /* printk(KERN_ERR "Not activating, in valkyrie_set_var.\n"); */ |
| valkyrie_par_to_var(&par, var); |
| return 0; |
| } |
| |
| /* |
| * I know, we want to use fb_display[con], but grab certain info |
| * from p->var instead. |
| */ |
| #define DIRTY(x) (p->var.x != var->x) |
| depthchange = DIRTY(bits_per_pixel); |
| /* adding "&& !DIRTY(pixclock)" corrects vmode-switching problems */ |
| if(!DIRTY(xres) && !DIRTY(yres) && !DIRTY(xres_virtual) && |
| !DIRTY(yres_virtual) && !DIRTY(bits_per_pixel) && !DIRTY(pixclock)) { |
| valkyrie_par_to_var(&par, var); |
| p->var = disp->var = *var; |
| return 0; |
| } |
| |
| p->par = par; |
| valkyrie_par_to_var(&par, var); |
| p->var = *var; |
| valkyrie_par_to_fix(&par, &p->fix, p); |
| valkyrie_par_to_display(&par, disp, &p->fix, p); |
| p->disp = *disp; |
| |
| if (info->changevar && !switching) { |
| /* Don't want to do this if just switching consoles. */ |
| (*info->changevar)(con); |
| } |
| if (con == info->currcon) |
| valkyrie_set_par(&par, p); |
| if (depthchange) |
| if ((err = fb_alloc_cmap(&disp->cmap, 0, 0))) |
| return err; |
| if (depthchange || switching) |
| do_install_cmap(con, info); |
| return 0; |
| } |
| |
| static int valkyrie_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, valkyriefb_getcolreg, info); |
| } |
| if (fb_display[con].cmap.len) { /* non default colormap? */ |
| fb_copy_cmap(&fb_display[con].cmap, cmap, kspc? 0: 2); |
| } |
| else { |
| int size = fb_display[con].var.bits_per_pixel == 16 ? 32 : 256; |
| fb_copy_cmap(fb_default_cmap(size), cmap, kspc ? 0 : 2); |
| } |
| return 0; |
| } |
| |
| static int valkyriefb_switch(int con, struct fb_info *fb) |
| { |
| struct fb_info_valkyrie *info = (struct fb_info_valkyrie *) fb; |
| struct fb_par_valkyrie par; |
| |
| if (fb_display[fb->currcon].cmap.len) |
| fb_get_cmap(&fb_display[fb->currcon].cmap, 1, valkyriefb_getcolreg, |
| fb); |
| fb->currcon = con; |
| #if 1 |
| valkyrie_var_to_par(&fb_display[fb->currcon].var, &par, fb); |
| valkyrie_set_par(&par, info); |
| do_install_cmap(con, fb); |
| #else |
| /* I see no reason not to do this. Minus info->changevar(). */ |
| /* DOH. This makes valkyrie_set_var compare, you guessed it, */ |
| /* fb_display[con].var (first param), and fb_display[con].var! */ |
| /* Perhaps I just fixed that... */ |
| switching = 1; |
| valkyrie_set_var(&fb_display[con].var, con, info); |
| switching = 0; |
| #endif |
| return 0; |
| } |
| |
| static int valkyriefb_updatevar(int con, struct fb_info *info) |
| { |
| return 0; |
| } |
| |
| static int valkyriefb_blank(int blank_mode, struct fb_info *info) |
| { |
| /* |
| * Blank the screen if blank_mode != 0, else unblank. If blank_mode == NULL |
| * then the caller blanks by setting the CLUT (Color Look Up Table) to all |
| * black. Return 0 if blanking succeeded, != 0 if un-/blanking failed due |
| * to e.g. a video mode which doesn't support it. Implements VESA suspend |
| * and powerdown modes on hardware that supports disabling hsync/vsync: |
| * blank_mode == 2: suspend vsync |
| * blank_mode == 3: suspend hsync |
| * blank_mode == 4: powerdown |
| */ |
| struct fb_info_valkyrie *p = (struct fb_info_valkyrie *) info; |
| struct valkyrie_regvals *init; |
| unsigned char vmode; |
| |
| if (p->disp.can_soft_blank |
| && ((vmode = p->par.vmode) > 0) |
| && (vmode <= VMODE_MAX) |
| && ((init = valkyrie_reg_init[vmode - 1]) != NULL)) { |
| if (blank_mode) |
| --blank_mode; |
| switch (blank_mode) { |
| default: /* unblank */ |
| out_8(&p->valkyrie_regs->mode.r, init->mode); |
| break; |
| case VESA_VSYNC_SUSPEND: |
| case VESA_HSYNC_SUSPEND: |
| /* |
| * [kps] Value extracted from MacOS. I don't know |
| * whether this bit disables hsync or vsync, or |
| * whether the hardware can do the other as well. |
| */ |
| out_8(&p->valkyrie_regs->mode.r, init->mode | 0x40); |
| break; |
| case VESA_POWERDOWN: |
| out_8(&p->valkyrie_regs->mode.r, 0x66); |
| break; |
| } |
| } |
| return 0; |
| } |
| |
| static int valkyriefb_getcolreg(u_int regno, u_int *red, u_int *green, |
| u_int *blue, u_int *transp, struct fb_info *info) |
| { |
| struct fb_info_valkyrie *p = (struct fb_info_valkyrie *) info; |
| |
| if (regno > 255) |
| return 1; |
| *red = (p->palette[regno].red<<8) | p->palette[regno].red; |
| *green = (p->palette[regno].green<<8) | p->palette[regno].green; |
| *blue = (p->palette[regno].blue<<8) | p->palette[regno].blue; |
| |
| return 0; |
| } |
| |
| static int valkyriefb_setcolreg(u_int regno, u_int red, u_int green, u_int blue, |
| u_int transp, struct fb_info *info) |
| { |
| struct fb_info_valkyrie *p = (struct fb_info_valkyrie *) info; |
| volatile struct cmap_regs *cmap_regs = p->cmap_regs; |
| |
| |
| if (regno > 255) |
| return 1; |
| red >>= 8; |
| green >>= 8; |
| blue >>= 8; |
| p->palette[regno].red = red; |
| p->palette[regno].green = green; |
| p->palette[regno].blue = blue; |
| |
| /* tell clut which address to fill */ |
| out_8(&p->cmap_regs->addr, regno); |
| udelay(1); |
| /* send one color channel at a time */ |
| out_8(&cmap_regs->lut, red); |
| out_8(&cmap_regs->lut, green); |
| out_8(&cmap_regs->lut, blue); |
| |
| if (regno < 16) { |
| #ifdef FBCON_HAS_CFB16 |
| p->fbcon_cfb16_cmap[regno] = (regno << 10) | (regno << 5) | regno; |
| #endif |
| } |
| |
| return 0; |
| } |
| |
| static int valkyrie_vram_reqd(int video_mode, int color_mode) |
| { |
| int pitch; |
| |
| if ((pitch = valkyrie_reg_init[video_mode-1]->pitch[color_mode]) == 0) |
| pitch = 2 * valkyrie_reg_init[video_mode-1]->pitch[0]; |
| return valkyrie_reg_init[video_mode-1]->vres * pitch; |
| } |
| |
| static void set_valkyrie_clock(unsigned char *params) |
| { |
| struct adb_request req; |
| int i; |
| |
| #ifdef CONFIG_ADB_CUDA |
| for (i = 0; i < 3; ++i) { |
| cuda_request(&req, NULL, 5, CUDA_PACKET, CUDA_GET_SET_IIC, |
| 0x50, i + 1, params[i]); |
| while (!req.complete) |
| cuda_poll(); |
| } |
| #endif |
| } |
| |
| static void __init init_valkyrie(struct fb_info_valkyrie *p) |
| { |
| struct fb_par_valkyrie *par = &p->par; |
| struct fb_var_screeninfo var; |
| int j, k; |
| |
| p->sense = read_valkyrie_sense(p); |
| printk(KERN_INFO "Monitor sense value = 0x%x, ", p->sense); |
| |
| /* Try to pick a video mode out of NVRAM if we have one. */ |
| #ifndef CONFIG_MAC |
| if (default_vmode == VMODE_NVRAM) { |
| default_vmode = nvram_read_byte(NV_VMODE); |
| if (default_vmode <= 0 |
| || default_vmode > VMODE_MAX |
| || !valkyrie_reg_init[default_vmode - 1]) |
| default_vmode = VMODE_CHOOSE; |
| } |
| #endif |
| if (default_vmode == VMODE_CHOOSE) |
| default_vmode = mac_map_monitor_sense(p->sense); |
| if (!valkyrie_reg_init[default_vmode - 1]) |
| default_vmode = VMODE_640_480_67; |
| #ifndef CONFIG_MAC |
| if (default_cmode == CMODE_NVRAM) |
| default_cmode = nvram_read_byte(NV_CMODE); |
| #endif |
| |
| /* |
| * Reduce the pixel size if we don't have enough VRAM or bandwitdh. |
| */ |
| if (default_cmode < CMODE_8 |
| || default_cmode > CMODE_16 |
| || valkyrie_reg_init[default_vmode-1]->pitch[default_cmode] == 0 |
| || valkyrie_vram_reqd(default_vmode, default_cmode) > p->total_vram) |
| default_cmode = CMODE_8; |
| |
| printk(KERN_INFO "using video mode %d and color mode %d.\n", default_vmode, default_cmode); |
| |
| mac_vmode_to_var(default_vmode, default_cmode, &var); |
| if (valkyrie_var_to_par(&var, par, &p->info)) { |
| printk(KERN_ERR "valkyriefb: can't set default video mode\n"); |
| return ; |
| } |
| |
| valkyrie_init_fix(&p->fix, p); |
| valkyrie_par_to_fix(&p->par, &p->fix, p); |
| valkyrie_par_to_var(&p->par, &p->var); |
| valkyrie_init_display(&p->disp); |
| valkyrie_par_to_display(&p->par, &p->disp, &p->fix, p); |
| valkyrie_init_info(&p->info, p); |
| |
| /* Initialize colormap */ |
| for (j = 0; j < 16; j++) { |
| k = color_table[j]; |
| p->palette[j].red = default_red[k]; |
| p->palette[j].green = default_grn[k]; |
| p->palette[j].blue = default_blu[k]; |
| } |
| |
| valkyrie_set_var (&var, -1, &p->info); |
| |
| if (register_framebuffer(&p->info) < 0) { |
| kfree(p); |
| return; |
| } |
| |
| printk(KERN_INFO "fb%d: valkyrie frame buffer device\n", GET_FB_IDX(p->info.node)); |
| } |
| |
| static void valkyrie_set_par(const struct fb_par_valkyrie *par, |
| struct fb_info_valkyrie *p) |
| { |
| struct valkyrie_regvals *init; |
| volatile struct valkyrie_regs *valkyrie_regs = p->valkyrie_regs; |
| int vmode, cmode; |
| |
| vmode = par->vmode; |
| cmode = par->cmode; |
| |
| if (vmode <= 0 |
| || vmode > VMODE_MAX |
| || (init = valkyrie_reg_init[vmode - 1]) == NULL) |
| panic("valkyrie: display mode %d not supported", vmode); |
| |
| /* Reset the valkyrie */ |
| out_8(&valkyrie_regs->status.r, 0); |
| udelay(100); |
| |
| /* Initialize display timing registers */ |
| out_8(&valkyrie_regs->mode.r, init->mode | 0x80); |
| out_8(&valkyrie_regs->depth.r, cmode + 3); |
| set_valkyrie_clock(init->clock_params); |
| udelay(100); |
| |
| /* Turn on display */ |
| out_8(&valkyrie_regs->mode.r, init->mode); |
| } |
| |
| int __init valkyriefb_init(void) |
| { |
| struct fb_info_valkyrie *p; |
| unsigned long frame_buffer_phys, cmap_regs_phys, flags; |
| |
| #ifdef CONFIG_MAC |
| if (!MACH_IS_MAC) |
| return 0; |
| if (!(mac_bi_data.id == MAC_MODEL_Q630 |
| /* I'm not sure about this one */ |
| || mac_bi_data.id == MAC_MODEL_P588)) |
| return 0; |
| |
| /* Hardcoded addresses... welcome to 68k Macintosh country :-) */ |
| frame_buffer_phys = 0xf9000000; |
| cmap_regs_phys = 0x50f24000; |
| flags = IOMAP_NOCACHE_SER; /* IOMAP_WRITETHROUGH?? */ |
| #else /* ppc (!CONFIG_MAC) */ |
| struct device_node *dp; |
| |
| dp = find_devices("valkyrie"); |
| if (dp == 0) |
| return 0; |
| |
| if(dp->n_addrs != 1) { |
| printk(KERN_ERR "expecting 1 address for valkyrie (got %d)", dp->n_addrs); |
| return 0; |
| } |
| |
| frame_buffer_phys = dp->addrs[0].address; |
| cmap_regs_phys = dp->addrs[0].address+0x304000; |
| flags = _PAGE_WRITETHRU; |
| #endif /* ppc (!CONFIG_MAC) */ |
| |
| p = kmalloc(sizeof(*p), GFP_ATOMIC); |
| if (p == 0) |
| return 0; |
| memset(p, 0, sizeof(*p)); |
| |
| /* Map in frame buffer and registers */ |
| if (!request_mem_region(frame_buffer_phys, 0x100000, "valkyriefb")) { |
| kfree(p); |
| return 0; |
| } |
| p->total_vram = 0x100000; |
| p->frame_buffer_phys = frame_buffer_phys; |
| p->frame_buffer = __ioremap(frame_buffer_phys, p->total_vram, flags); |
| p->cmap_regs_phys = cmap_regs_phys; |
| p->cmap_regs = ioremap(p->cmap_regs_phys, 0x1000); |
| p->valkyrie_regs_phys = cmap_regs_phys+0x6000; |
| p->valkyrie_regs = ioremap(p->valkyrie_regs_phys, 0x1000); |
| init_valkyrie(p); |
| return 0; |
| } |
| |
| /* |
| * Get the monitor sense value. |
| */ |
| static int read_valkyrie_sense(struct fb_info_valkyrie *p) |
| { |
| int sense, in; |
| |
| out_8(&p->valkyrie_regs->msense.r, 0); /* release all lines */ |
| __delay(20000); |
| sense = ((in = in_8(&p->valkyrie_regs->msense.r)) & 0x70) << 4; |
| /* drive each sense line low in turn and collect the other 2 */ |
| out_8(&p->valkyrie_regs->msense.r, 4); /* drive A low */ |
| __delay(20000); |
| sense |= ((in = in_8(&p->valkyrie_regs->msense.r)) & 0x30); |
| out_8(&p->valkyrie_regs->msense.r, 2); /* drive B low */ |
| __delay(20000); |
| sense |= ((in = in_8(&p->valkyrie_regs->msense.r)) & 0x40) >> 3; |
| sense |= (in & 0x10) >> 2; |
| out_8(&p->valkyrie_regs->msense.r, 1); /* drive C low */ |
| __delay(20000); |
| sense |= ((in = in_8(&p->valkyrie_regs->msense.r)) & 0x60) >> 5; |
| |
| out_8(&p->valkyrie_regs->msense.r, 7); |
| |
| return sense; |
| } |
| |
| /* |
| * This routine takes a user-supplied var, |
| * and picks the best vmode/cmode from it. |
| */ |
| static int valkyrie_var_to_par(struct fb_var_screeninfo *var, |
| struct fb_par_valkyrie *par, const struct fb_info *fb_info) |
| |
| /* [bkn] I did a major overhaul of this function. |
| * |
| * Much of the old code was "swiped by jonh from atyfb.c". Because |
| * macmodes has mac_var_to_vmode, I felt that it would be better to |
| * rework this function to use that, instead of reinventing the wheel to |
| * add support for vmode 17. This was reinforced by the fact that |
| * the previously swiped atyfb.c code is no longer there. |
| * |
| * So, I swiped and adapted platinum_var_to_par (from platinumfb.c), replacing |
| * most, but not all, of the old code in the process. One side benefit of |
| * swiping the platinumfb code is that we now have more comprehensible error |
| * messages when a vmode/cmode switch fails. (Most of the error messages are |
| * platinumfb.c, but I added two of my own, and I also changed some commas |
| * into colons to make the messages more consistent with other Linux error |
| * messages.) In addition, I think the new code *might* fix some vmode- |
| * switching oddities, but I'm not sure. |
| * |
| * There may be some more opportunities for cleanup in here, but this is a |
| * good start... |
| */ |
| |
| { |
| int bpp = var->bits_per_pixel; |
| struct valkyrie_regvals *init; |
| struct fb_info_valkyrie *p = (struct fb_info_valkyrie *) fb_info; |
| |
| |
| if(mac_var_to_vmode(var, &par->vmode, &par->cmode) != 0) { |
| printk(KERN_ERR "valkyrie_var_to_par: %dx%dx%d unsuccessful.\n",var->xres,var->yres,var->bits_per_pixel); |
| return -EINVAL; |
| } |
| |
| /* Check if we know about the wanted video mode */ |
| if(!valkyrie_reg_init[par->vmode-1]) { |
| printk(KERN_ERR "valkyrie_var_to_par: vmode %d not valid.\n", par->vmode); |
| return -EINVAL; |
| } |
| |
| par->xres = var->xres; |
| par->yres = var->yres; |
| par->xoffset = 0; |
| par->yoffset = 0; |
| par->vxres = par->xres; |
| par->vyres = par->yres; |
| |
| if (var->xres_virtual > var->xres || var->yres_virtual > var->yres |
| || var->xoffset != 0 || var->yoffset != 0) { |
| return -EINVAL; |
| } |
| |
| if (bpp <= 8) |
| par->cmode = CMODE_8; |
| else if (bpp <= 16) |
| par->cmode = CMODE_16; |
| else { |
| printk(KERN_ERR "valkyrie_var_to_par: cmode %d not supported.\n", par->cmode); |
| return -EINVAL; |
| } |
| |
| init = valkyrie_reg_init[par->vmode-1]; |
| if (init->pitch[par->cmode] == 0) { |
| printk(KERN_ERR "valkyrie_var_to_par: vmode %d does not support cmode %d.\n", par->vmode, par->cmode); |
| return -EINVAL; |
| } |
| |
| if (valkyrie_vram_reqd(par->vmode, par->cmode) > p->total_vram) { |
| printk(KERN_ERR "valkyrie_var_to_par: not enough ram for vmode %d, cmode %d.\n", par->vmode, par->cmode); |
| return -EINVAL; |
| } |
| |
| return 0; |
| } |
| |
| static int valkyrie_par_to_var(struct fb_par_valkyrie *par, struct fb_var_screeninfo *var) |
| { |
| return mac_vmode_to_var(par->vmode, par->cmode, var); |
| } |
| |
| static void valkyrie_init_fix(struct fb_fix_screeninfo *fix, struct fb_info_valkyrie *p) |
| { |
| memset(fix, 0, sizeof(*fix)); |
| strcpy(fix->id, "valkyrie"); |
| fix->mmio_start = p->valkyrie_regs_phys; |
| fix->mmio_len = sizeof(struct valkyrie_regs); |
| fix->type = FB_TYPE_PACKED_PIXELS; |
| |
| fix->type_aux = 0; |
| fix->ywrapstep = 0; |
| fix->ypanstep = 0; |
| fix->xpanstep = 0; |
| |
| } |
| |
| /* Fix must already be inited above */ |
| static void valkyrie_par_to_fix(struct fb_par_valkyrie *par, |
| struct fb_fix_screeninfo *fix, |
| struct fb_info_valkyrie *p) |
| { |
| fix->smem_start = p->frame_buffer_phys + 0x1000; |
| #if 1 |
| fix->smem_len = valkyrie_vram_reqd(par->vmode, par->cmode); |
| #else |
| fix->smem_len = p->total_vram; |
| #endif |
| fix->visual = (par->cmode == CMODE_8) ? |
| FB_VISUAL_PSEUDOCOLOR : FB_VISUAL_DIRECTCOLOR; |
| fix->line_length = par->vxres << par->cmode; |
| /* ywrapstep, xpanstep, ypanstep */ |
| } |
| |
| static void valkyrie_init_display(struct display *disp) |
| { |
| memset(disp, 0, sizeof(*disp)); |
| disp->can_soft_blank = can_soft_blank; |
| disp->scrollmode = SCROLL_YREDRAW; |
| } |
| |
| static void valkyrie_par_to_display(struct fb_par_valkyrie *par, |
| struct display *disp, struct fb_fix_screeninfo *fix, struct fb_info_valkyrie *p) |
| { |
| disp->var = p->var; |
| |
| if(disp->scrollmode != SCROLL_YREDRAW) { |
| printk(KERN_ERR "Scroll mode not YREDRAW in valkyrie_par_to_display\n"); |
| disp->scrollmode = SCROLL_YREDRAW; |
| } |
| switch (par->cmode) { |
| #ifdef FBCON_HAS_CFB8 |
| case CMODE_8: |
| disp->dispsw = &fbcon_cfb8; |
| break; |
| #endif |
| #ifdef FBCON_HAS_CFB16 |
| case CMODE_16: |
| disp->dispsw = &fbcon_cfb16; |
| disp->dispsw_data = p->fbcon_cfb16_cmap; |
| break; |
| #endif |
| default: |
| disp->dispsw = &fbcon_dummy; |
| break; |
| } |
| } |
| |
| static void __init valkyrie_init_info(struct fb_info *info, struct fb_info_valkyrie *p) |
| { |
| strcpy(info->modename, p->fix.id); |
| info->node = NODEV; |
| info->fbops = &valkyriefb_ops; |
| info->screen_base = (char *) p->frame_buffer + 0x1000; |
| info->disp = &p->disp; |
| info->currcon = -1; |
| strcpy(info->fontname, fontname); |
| info->changevar = NULL; |
| info->switch_con = &valkyriefb_switch; |
| info->updatevar = &valkyriefb_updatevar; |
| info->flags = FBINFO_FLAG_DEFAULT; |
| } |
| |
| |
| /* |
| * Parse user speficied options (`video=valkyriefb:') |
| */ |
| int __init valkyriefb_setup(char *options) |
| { |
| char *this_opt; |
| |
| if (!options || !*options) |
| return 0; |
| |
| while ((this_opt = strsep(&options, ",")) != NULL) { |
| if (!strncmp(this_opt, "font:", 5)) { |
| char *p; |
| int i; |
| |
| p = this_opt + 5; |
| for (i = 0; i < sizeof(fontname) - 1; i++) |
| if (!*p || *p == ' ' || *p == ',') |
| break; |
| memcpy(fontname, this_opt + 5, i); |
| fontname[i] = 0; |
| } |
| else if (!strncmp(this_opt, "vmode:", 6)) { |
| int vmode = simple_strtoul(this_opt+6, NULL, 0); |
| if (vmode > 0 && vmode <= VMODE_MAX) |
| default_vmode = vmode; |
| } |
| else if (!strncmp(this_opt, "cmode:", 6)) { |
| int depth = simple_strtoul(this_opt+6, NULL, 0); |
| switch (depth) { |
| case 8: |
| default_cmode = CMODE_8; |
| break; |
| case 15: |
| case 16: |
| default_cmode = CMODE_16; |
| break; |
| } |
| } |
| /* XXX - remove these options once blanking has been tested */ |
| else if (!strncmp(this_opt, "noblank", 7)) { |
| can_soft_blank = 0; |
| } |
| else if (!strncmp(this_opt, "blank", 5)) { |
| can_soft_blank = 1; |
| } |
| } |
| return 0; |
| } |
| |
| MODULE_LICENSE("GPL"); |