Creation of Cybook 2416 (actually Gen4) repository
This commit is contained in:
mlt
705
drivers/video/platinumfb.c
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705
drivers/video/platinumfb.c
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@@ -0,0 +1,705 @@
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/*
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* platinumfb.c -- frame buffer device for the PowerMac 'platinum' display
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*
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* Copyright (C) 1998 Franz Sirl
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*
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* Frame buffer structure from:
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* drivers/video/controlfb.c -- frame buffer device for
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* Apple 'control' display chip.
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* Copyright (C) 1998 Dan Jacobowitz
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*
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* Hardware information from:
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* platinum.c: Console support for PowerMac "platinum" display adaptor.
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* Copyright (C) 1996 Paul Mackerras and Mark Abene
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*
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* This file is subject to the terms and conditions of the GNU General Public
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* License. See the file COPYING in the main directory of this archive for
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* more details.
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*/
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#include <linux/module.h>
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#include <linux/kernel.h>
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#include <linux/errno.h>
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#include <linux/string.h>
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#include <linux/mm.h>
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#include <linux/slab.h>
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#include <linux/vmalloc.h>
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#include <linux/delay.h>
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#include <linux/interrupt.h>
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#include <linux/fb.h>
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#include <linux/init.h>
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#include <linux/pci.h>
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#include <linux/nvram.h>
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#include <asm/io.h>
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#include <asm/prom.h>
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#include <asm/pgtable.h>
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#include <asm/of_device.h>
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#include <asm/of_platform.h>
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#include "macmodes.h"
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#include "platinumfb.h"
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static int default_vmode = VMODE_NVRAM;
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static int default_cmode = CMODE_NVRAM;
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struct fb_info_platinum {
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struct fb_info *info;
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int vmode, cmode;
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int xres, yres;
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int vxres, vyres;
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int xoffset, yoffset;
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struct {
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__u8 red, green, blue;
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} palette[256];
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u32 pseudo_palette[17];
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volatile struct cmap_regs __iomem *cmap_regs;
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unsigned long cmap_regs_phys;
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volatile struct platinum_regs __iomem *platinum_regs;
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unsigned long platinum_regs_phys;
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__u8 __iomem *frame_buffer;
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volatile __u8 __iomem *base_frame_buffer;
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unsigned long frame_buffer_phys;
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unsigned long total_vram;
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int clktype;
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int dactype;
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struct resource rsrc_fb, rsrc_reg;
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};
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/*
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* Frame buffer device API
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*/
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static int platinumfb_setcolreg(u_int regno, u_int red, u_int green, u_int blue,
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u_int transp, struct fb_info *info);
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static int platinumfb_blank(int blank_mode, struct fb_info *info);
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static int platinumfb_set_par (struct fb_info *info);
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static int platinumfb_check_var (struct fb_var_screeninfo *var, struct fb_info *info);
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/*
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* internal functions
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*/
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static inline int platinum_vram_reqd(int video_mode, int color_mode);
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static int read_platinum_sense(struct fb_info_platinum *pinfo);
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static void set_platinum_clock(struct fb_info_platinum *pinfo);
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static void platinum_set_hardware(struct fb_info_platinum *pinfo);
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static int platinum_var_to_par(struct fb_var_screeninfo *var,
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struct fb_info_platinum *pinfo,
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int check_only);
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/*
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* Interface used by the world
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*/
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static struct fb_ops platinumfb_ops = {
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.owner = THIS_MODULE,
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.fb_check_var = platinumfb_check_var,
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.fb_set_par = platinumfb_set_par,
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.fb_setcolreg = platinumfb_setcolreg,
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.fb_blank = platinumfb_blank,
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.fb_fillrect = cfb_fillrect,
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.fb_copyarea = cfb_copyarea,
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.fb_imageblit = cfb_imageblit,
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};
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/*
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* Checks a var structure
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*/
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static int platinumfb_check_var (struct fb_var_screeninfo *var, struct fb_info *info)
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{
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return platinum_var_to_par(var, info->par, 1);
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}
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/*
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* Applies current var to display
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*/
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static int platinumfb_set_par (struct fb_info *info)
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{
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struct fb_info_platinum *pinfo = info->par;
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struct platinum_regvals *init;
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int err, offset = 0x20;
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if((err = platinum_var_to_par(&info->var, pinfo, 0))) {
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printk (KERN_ERR "platinumfb_set_par: error calling"
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" platinum_var_to_par: %d.\n", err);
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return err;
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}
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platinum_set_hardware(pinfo);
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init = platinum_reg_init[pinfo->vmode-1];
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if ((pinfo->vmode == VMODE_832_624_75) && (pinfo->cmode > CMODE_8))
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offset = 0x10;
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info->screen_base = pinfo->frame_buffer + init->fb_offset + offset;
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info->fix.smem_start = (pinfo->frame_buffer_phys) + init->fb_offset + offset;
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info->fix.visual = (pinfo->cmode == CMODE_8) ?
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FB_VISUAL_PSEUDOCOLOR : FB_VISUAL_DIRECTCOLOR;
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info->fix.line_length = vmode_attrs[pinfo->vmode-1].hres * (1<<pinfo->cmode)
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+ offset;
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printk("line_length: %x\n", info->fix.line_length);
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return 0;
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}
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static int platinumfb_blank(int blank, struct fb_info *fb)
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{
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/*
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* Blank the screen if blank_mode != 0, else unblank. If blank == NULL
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* then the caller blanks by setting the CLUT (Color Look Up Table) to all
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* black. Return 0 if blanking succeeded, != 0 if un-/blanking failed due
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* to e.g. a video mode which doesn't support it. Implements VESA suspend
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* and powerdown modes on hardware that supports disabling hsync/vsync:
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* blank_mode == 2: suspend vsync
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* blank_mode == 3: suspend hsync
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* blank_mode == 4: powerdown
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*/
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/* [danj] I think there's something fishy about those constants... */
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/*
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struct fb_info_platinum *info = (struct fb_info_platinum *) fb;
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int ctrl;
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ctrl = ld_le32(&info->platinum_regs->ctrl.r) | 0x33;
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if (blank)
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--blank_mode;
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if (blank & VESA_VSYNC_SUSPEND)
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ctrl &= ~3;
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if (blank & VESA_HSYNC_SUSPEND)
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ctrl &= ~0x30;
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out_le32(&info->platinum_regs->ctrl.r, ctrl);
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*/
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/* TODO: Figure out how the heck to powerdown this thing! */
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return 0;
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}
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static int platinumfb_setcolreg(u_int regno, u_int red, u_int green, u_int blue,
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u_int transp, struct fb_info *info)
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{
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struct fb_info_platinum *pinfo = info->par;
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volatile struct cmap_regs __iomem *cmap_regs = pinfo->cmap_regs;
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if (regno > 255)
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return 1;
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red >>= 8;
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green >>= 8;
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blue >>= 8;
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pinfo->palette[regno].red = red;
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pinfo->palette[regno].green = green;
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pinfo->palette[regno].blue = blue;
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out_8(&cmap_regs->addr, regno); /* tell clut what addr to fill */
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out_8(&cmap_regs->lut, red); /* send one color channel at */
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out_8(&cmap_regs->lut, green); /* a time... */
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out_8(&cmap_regs->lut, blue);
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if (regno < 16) {
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int i;
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u32 *pal = info->pseudo_palette;
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switch (pinfo->cmode) {
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case CMODE_16:
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pal[regno] = (regno << 10) | (regno << 5) | regno;
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break;
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case CMODE_32:
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i = (regno << 8) | regno;
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pal[regno] = (i << 16) | i;
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break;
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}
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}
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return 0;
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}
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static inline int platinum_vram_reqd(int video_mode, int color_mode)
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{
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return vmode_attrs[video_mode-1].vres *
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(vmode_attrs[video_mode-1].hres * (1<<color_mode) +
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((video_mode == VMODE_832_624_75) &&
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(color_mode > CMODE_8)) ? 0x10 : 0x20) + 0x1000;
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}
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#define STORE_D2(a, d) { \
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out_8(&cmap_regs->addr, (a+32)); \
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out_8(&cmap_regs->d2, (d)); \
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}
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static void set_platinum_clock(struct fb_info_platinum *pinfo)
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{
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volatile struct cmap_regs __iomem *cmap_regs = pinfo->cmap_regs;
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struct platinum_regvals *init;
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init = platinum_reg_init[pinfo->vmode-1];
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STORE_D2(6, 0xc6);
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out_8(&cmap_regs->addr,3+32);
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if (in_8(&cmap_regs->d2) == 2) {
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STORE_D2(7, init->clock_params[pinfo->clktype][0]);
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STORE_D2(8, init->clock_params[pinfo->clktype][1]);
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STORE_D2(3, 3);
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} else {
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STORE_D2(4, init->clock_params[pinfo->clktype][0]);
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STORE_D2(5, init->clock_params[pinfo->clktype][1]);
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STORE_D2(3, 2);
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}
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__delay(5000);
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STORE_D2(9, 0xa6);
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}
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/* Now how about actually saying, Make it so! */
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/* Some things in here probably don't need to be done each time. */
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static void platinum_set_hardware(struct fb_info_platinum *pinfo)
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{
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volatile struct platinum_regs __iomem *platinum_regs = pinfo->platinum_regs;
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volatile struct cmap_regs __iomem *cmap_regs = pinfo->cmap_regs;
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struct platinum_regvals *init;
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int i;
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int vmode, cmode;
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vmode = pinfo->vmode;
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cmode = pinfo->cmode;
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init = platinum_reg_init[vmode - 1];
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/* Initialize display timing registers */
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out_be32(&platinum_regs->reg[24].r, 7); /* turn display off */
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for (i = 0; i < 26; ++i)
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out_be32(&platinum_regs->reg[i+32].r, init->regs[i]);
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out_be32(&platinum_regs->reg[26+32].r, (pinfo->total_vram == 0x100000 ?
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init->offset[cmode] + 4 - cmode :
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init->offset[cmode]));
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out_be32(&platinum_regs->reg[16].r, (unsigned) pinfo->frame_buffer_phys+init->fb_offset+0x10);
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out_be32(&platinum_regs->reg[18].r, init->pitch[cmode]);
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out_be32(&platinum_regs->reg[19].r, (pinfo->total_vram == 0x100000 ?
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init->mode[cmode+1] :
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init->mode[cmode]));
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out_be32(&platinum_regs->reg[20].r, (pinfo->total_vram == 0x100000 ? 0x11 : 0x1011));
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out_be32(&platinum_regs->reg[21].r, 0x100);
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out_be32(&platinum_regs->reg[22].r, 1);
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out_be32(&platinum_regs->reg[23].r, 1);
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out_be32(&platinum_regs->reg[26].r, 0xc00);
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out_be32(&platinum_regs->reg[27].r, 0x235);
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/* out_be32(&platinum_regs->reg[27].r, 0x2aa); */
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STORE_D2(0, (pinfo->total_vram == 0x100000 ?
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init->dacula_ctrl[cmode] & 0xf :
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init->dacula_ctrl[cmode]));
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STORE_D2(1, 4);
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STORE_D2(2, 0);
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set_platinum_clock(pinfo);
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out_be32(&platinum_regs->reg[24].r, 0); /* turn display on */
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}
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/*
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* Set misc info vars for this driver
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*/
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static void __devinit platinum_init_info(struct fb_info *info, struct fb_info_platinum *pinfo)
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{
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/* Fill fb_info */
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info->fbops = &platinumfb_ops;
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info->pseudo_palette = pinfo->pseudo_palette;
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info->flags = FBINFO_DEFAULT;
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info->screen_base = pinfo->frame_buffer + 0x20;
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fb_alloc_cmap(&info->cmap, 256, 0);
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/* Fill fix common fields */
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strcpy(info->fix.id, "platinum");
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info->fix.mmio_start = pinfo->platinum_regs_phys;
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info->fix.mmio_len = 0x1000;
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info->fix.type = FB_TYPE_PACKED_PIXELS;
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info->fix.smem_start = pinfo->frame_buffer_phys + 0x20; /* will be updated later */
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info->fix.smem_len = pinfo->total_vram - 0x20;
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info->fix.ywrapstep = 0;
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info->fix.xpanstep = 0;
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info->fix.ypanstep = 0;
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info->fix.type_aux = 0;
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info->fix.accel = FB_ACCEL_NONE;
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}
|
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|
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static int __devinit platinum_init_fb(struct fb_info *info)
|
||||
{
|
||||
struct fb_info_platinum *pinfo = info->par;
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struct fb_var_screeninfo var;
|
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int sense, rc;
|
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|
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sense = read_platinum_sense(pinfo);
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printk(KERN_INFO "platinumfb: Monitor sense value = 0x%x, ", sense);
|
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if (default_vmode == VMODE_NVRAM) {
|
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#ifdef CONFIG_NVRAM
|
||||
default_vmode = nvram_read_byte(NV_VMODE);
|
||||
if (default_vmode <= 0 || default_vmode > VMODE_MAX ||
|
||||
!platinum_reg_init[default_vmode-1])
|
||||
#endif
|
||||
default_vmode = VMODE_CHOOSE;
|
||||
}
|
||||
if (default_vmode == VMODE_CHOOSE) {
|
||||
default_vmode = mac_map_monitor_sense(sense);
|
||||
}
|
||||
if (default_vmode <= 0 || default_vmode > VMODE_MAX)
|
||||
default_vmode = VMODE_640_480_60;
|
||||
#ifdef CONFIG_NVRAM
|
||||
if (default_cmode == CMODE_NVRAM)
|
||||
default_cmode = nvram_read_byte(NV_CMODE);
|
||||
#endif
|
||||
if (default_cmode < CMODE_8 || default_cmode > CMODE_32)
|
||||
default_cmode = CMODE_8;
|
||||
/*
|
||||
* Reduce the pixel size if we don't have enough VRAM.
|
||||
*/
|
||||
while(default_cmode > CMODE_8 &&
|
||||
platinum_vram_reqd(default_vmode, default_cmode) > pinfo->total_vram)
|
||||
default_cmode--;
|
||||
|
||||
printk("platinumfb: Using video mode %d and color mode %d.\n", default_vmode, default_cmode);
|
||||
|
||||
/* Setup default var */
|
||||
if (mac_vmode_to_var(default_vmode, default_cmode, &var) < 0) {
|
||||
/* This shouldn't happen! */
|
||||
printk("mac_vmode_to_var(%d, %d,) failed\n", default_vmode, default_cmode);
|
||||
try_again:
|
||||
default_vmode = VMODE_640_480_60;
|
||||
default_cmode = CMODE_8;
|
||||
if (mac_vmode_to_var(default_vmode, default_cmode, &var) < 0) {
|
||||
printk(KERN_ERR "platinumfb: mac_vmode_to_var() failed\n");
|
||||
return -ENXIO;
|
||||
}
|
||||
}
|
||||
|
||||
/* Initialize info structure */
|
||||
platinum_init_info(info, pinfo);
|
||||
|
||||
/* Apply default var */
|
||||
info->var = var;
|
||||
var.activate = FB_ACTIVATE_NOW;
|
||||
rc = fb_set_var(info, &var);
|
||||
if (rc && (default_vmode != VMODE_640_480_60 || default_cmode != CMODE_8))
|
||||
goto try_again;
|
||||
|
||||
/* Register with fbdev layer */
|
||||
rc = register_framebuffer(info);
|
||||
if (rc < 0)
|
||||
return rc;
|
||||
|
||||
printk(KERN_INFO "fb%d: Apple Platinum frame buffer device\n", info->node);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/*
|
||||
* Get the monitor sense value.
|
||||
* Note that this can be called before calibrate_delay,
|
||||
* so we can't use udelay.
|
||||
*/
|
||||
static int read_platinum_sense(struct fb_info_platinum *info)
|
||||
{
|
||||
volatile struct platinum_regs __iomem *platinum_regs = info->platinum_regs;
|
||||
int sense;
|
||||
|
||||
out_be32(&platinum_regs->reg[23].r, 7); /* turn off drivers */
|
||||
__delay(2000);
|
||||
sense = (~in_be32(&platinum_regs->reg[23].r) & 7) << 8;
|
||||
|
||||
/* drive each sense line low in turn and collect the other 2 */
|
||||
out_be32(&platinum_regs->reg[23].r, 3); /* drive A low */
|
||||
__delay(2000);
|
||||
sense |= (~in_be32(&platinum_regs->reg[23].r) & 3) << 4;
|
||||
out_be32(&platinum_regs->reg[23].r, 5); /* drive B low */
|
||||
__delay(2000);
|
||||
sense |= (~in_be32(&platinum_regs->reg[23].r) & 4) << 1;
|
||||
sense |= (~in_be32(&platinum_regs->reg[23].r) & 1) << 2;
|
||||
out_be32(&platinum_regs->reg[23].r, 6); /* drive C low */
|
||||
__delay(2000);
|
||||
sense |= (~in_be32(&platinum_regs->reg[23].r) & 6) >> 1;
|
||||
|
||||
out_be32(&platinum_regs->reg[23].r, 7); /* turn off drivers */
|
||||
|
||||
return sense;
|
||||
}
|
||||
|
||||
/*
|
||||
* This routine takes a user-supplied var, and picks the best vmode/cmode from it.
|
||||
* It also updates the var structure to the actual mode data obtained
|
||||
*/
|
||||
static int platinum_var_to_par(struct fb_var_screeninfo *var,
|
||||
struct fb_info_platinum *pinfo,
|
||||
int check_only)
|
||||
{
|
||||
int vmode, cmode;
|
||||
|
||||
if (mac_var_to_vmode(var, &vmode, &cmode) != 0) {
|
||||
printk(KERN_ERR "platinum_var_to_par: mac_var_to_vmode unsuccessful.\n");
|
||||
printk(KERN_ERR "platinum_var_to_par: var->xres = %d\n", var->xres);
|
||||
printk(KERN_ERR "platinum_var_to_par: var->yres = %d\n", var->yres);
|
||||
printk(KERN_ERR "platinum_var_to_par: var->xres_virtual = %d\n", var->xres_virtual);
|
||||
printk(KERN_ERR "platinum_var_to_par: var->yres_virtual = %d\n", var->yres_virtual);
|
||||
printk(KERN_ERR "platinum_var_to_par: var->bits_per_pixel = %d\n", var->bits_per_pixel);
|
||||
printk(KERN_ERR "platinum_var_to_par: var->pixclock = %d\n", var->pixclock);
|
||||
printk(KERN_ERR "platinum_var_to_par: var->vmode = %d\n", var->vmode);
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
if (!platinum_reg_init[vmode-1]) {
|
||||
printk(KERN_ERR "platinum_var_to_par, vmode %d not valid.\n", vmode);
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
if (platinum_vram_reqd(vmode, cmode) > pinfo->total_vram) {
|
||||
printk(KERN_ERR "platinum_var_to_par, not enough ram for vmode %d, cmode %d.\n", vmode, cmode);
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
if (mac_vmode_to_var(vmode, cmode, var))
|
||||
return -EINVAL;
|
||||
|
||||
if (check_only)
|
||||
return 0;
|
||||
|
||||
pinfo->vmode = vmode;
|
||||
pinfo->cmode = cmode;
|
||||
pinfo->xres = vmode_attrs[vmode-1].hres;
|
||||
pinfo->yres = vmode_attrs[vmode-1].vres;
|
||||
pinfo->xoffset = 0;
|
||||
pinfo->yoffset = 0;
|
||||
pinfo->vxres = pinfo->xres;
|
||||
pinfo->vyres = pinfo->yres;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* Parse user speficied options (`video=platinumfb:')
|
||||
*/
|
||||
static int __init platinumfb_setup(char *options)
|
||||
{
|
||||
char *this_opt;
|
||||
|
||||
if (!options || !*options)
|
||||
return 0;
|
||||
|
||||
while ((this_opt = strsep(&options, ",")) != NULL) {
|
||||
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 0:
|
||||
case 8:
|
||||
default_cmode = CMODE_8;
|
||||
break;
|
||||
case 15:
|
||||
case 16:
|
||||
default_cmode = CMODE_16;
|
||||
break;
|
||||
case 24:
|
||||
case 32:
|
||||
default_cmode = CMODE_32;
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
#ifdef __powerpc__
|
||||
#define invalidate_cache(addr) \
|
||||
asm volatile("eieio; dcbf 0,%1" \
|
||||
: "=m" (*(addr)) : "r" (addr) : "memory");
|
||||
#else
|
||||
#define invalidate_cache(addr)
|
||||
#endif
|
||||
|
||||
static int __devinit platinumfb_probe(struct of_device* odev,
|
||||
const struct of_device_id *match)
|
||||
{
|
||||
struct device_node *dp = odev->node;
|
||||
struct fb_info *info;
|
||||
struct fb_info_platinum *pinfo;
|
||||
volatile __u8 *fbuffer;
|
||||
int bank0, bank1, bank2, bank3, rc;
|
||||
|
||||
printk(KERN_INFO "platinumfb: Found Apple Platinum video hardware\n");
|
||||
|
||||
info = framebuffer_alloc(sizeof(*pinfo), &odev->dev);
|
||||
if (info == NULL)
|
||||
return -ENOMEM;
|
||||
pinfo = info->par;
|
||||
|
||||
if (of_address_to_resource(dp, 0, &pinfo->rsrc_reg) ||
|
||||
of_address_to_resource(dp, 1, &pinfo->rsrc_fb)) {
|
||||
printk(KERN_ERR "platinumfb: Can't get resources\n");
|
||||
framebuffer_release(info);
|
||||
return -ENXIO;
|
||||
}
|
||||
if (!request_mem_region(pinfo->rsrc_reg.start,
|
||||
pinfo->rsrc_reg.start -
|
||||
pinfo->rsrc_reg.end + 1,
|
||||
"platinumfb registers")) {
|
||||
framebuffer_release(info);
|
||||
return -ENXIO;
|
||||
}
|
||||
if (!request_mem_region(pinfo->rsrc_fb.start,
|
||||
pinfo->rsrc_fb.start
|
||||
- pinfo->rsrc_fb.end + 1,
|
||||
"platinumfb framebuffer")) {
|
||||
release_mem_region(pinfo->rsrc_reg.start,
|
||||
pinfo->rsrc_reg.end -
|
||||
pinfo->rsrc_reg.start + 1);
|
||||
framebuffer_release(info);
|
||||
return -ENXIO;
|
||||
}
|
||||
|
||||
/* frame buffer - map only 4MB */
|
||||
pinfo->frame_buffer_phys = pinfo->rsrc_fb.start;
|
||||
pinfo->frame_buffer = __ioremap(pinfo->rsrc_fb.start, 0x400000,
|
||||
_PAGE_WRITETHRU);
|
||||
pinfo->base_frame_buffer = pinfo->frame_buffer;
|
||||
|
||||
/* registers */
|
||||
pinfo->platinum_regs_phys = pinfo->rsrc_reg.start;
|
||||
pinfo->platinum_regs = ioremap(pinfo->rsrc_reg.start, 0x1000);
|
||||
|
||||
pinfo->cmap_regs_phys = 0xf301b000; /* XXX not in prom? */
|
||||
request_mem_region(pinfo->cmap_regs_phys, 0x1000, "platinumfb cmap");
|
||||
pinfo->cmap_regs = ioremap(pinfo->cmap_regs_phys, 0x1000);
|
||||
|
||||
/* Grok total video ram */
|
||||
out_be32(&pinfo->platinum_regs->reg[16].r, (unsigned)pinfo->frame_buffer_phys);
|
||||
out_be32(&pinfo->platinum_regs->reg[20].r, 0x1011); /* select max vram */
|
||||
out_be32(&pinfo->platinum_regs->reg[24].r, 0); /* switch in vram */
|
||||
|
||||
fbuffer = pinfo->base_frame_buffer;
|
||||
fbuffer[0x100000] = 0x34;
|
||||
fbuffer[0x100008] = 0x0;
|
||||
invalidate_cache(&fbuffer[0x100000]);
|
||||
fbuffer[0x200000] = 0x56;
|
||||
fbuffer[0x200008] = 0x0;
|
||||
invalidate_cache(&fbuffer[0x200000]);
|
||||
fbuffer[0x300000] = 0x78;
|
||||
fbuffer[0x300008] = 0x0;
|
||||
invalidate_cache(&fbuffer[0x300000]);
|
||||
bank0 = 1; /* builtin 1MB vram, always there */
|
||||
bank1 = fbuffer[0x100000] == 0x34;
|
||||
bank2 = fbuffer[0x200000] == 0x56;
|
||||
bank3 = fbuffer[0x300000] == 0x78;
|
||||
pinfo->total_vram = (bank0 + bank1 + bank2 + bank3) * 0x100000;
|
||||
printk(KERN_INFO "platinumfb: Total VRAM = %dMB (%d%d%d%d)\n", (int) (pinfo->total_vram / 1024 / 1024),
|
||||
bank3, bank2, bank1, bank0);
|
||||
|
||||
/*
|
||||
* Try to determine whether we have an old or a new DACula.
|
||||
*/
|
||||
out_8(&pinfo->cmap_regs->addr, 0x40);
|
||||
pinfo->dactype = in_8(&pinfo->cmap_regs->d2);
|
||||
switch (pinfo->dactype) {
|
||||
case 0x3c:
|
||||
pinfo->clktype = 1;
|
||||
printk(KERN_INFO "platinumfb: DACula type 0x3c\n");
|
||||
break;
|
||||
case 0x84:
|
||||
pinfo->clktype = 0;
|
||||
printk(KERN_INFO "platinumfb: DACula type 0x84\n");
|
||||
break;
|
||||
default:
|
||||
pinfo->clktype = 0;
|
||||
printk(KERN_INFO "platinumfb: Unknown DACula type: %x\n", pinfo->dactype);
|
||||
break;
|
||||
}
|
||||
dev_set_drvdata(&odev->dev, info);
|
||||
|
||||
rc = platinum_init_fb(info);
|
||||
if (rc != 0) {
|
||||
iounmap(pinfo->frame_buffer);
|
||||
iounmap(pinfo->platinum_regs);
|
||||
iounmap(pinfo->cmap_regs);
|
||||
dev_set_drvdata(&odev->dev, NULL);
|
||||
framebuffer_release(info);
|
||||
}
|
||||
|
||||
return rc;
|
||||
}
|
||||
|
||||
static int __devexit platinumfb_remove(struct of_device* odev)
|
||||
{
|
||||
struct fb_info *info = dev_get_drvdata(&odev->dev);
|
||||
struct fb_info_platinum *pinfo = info->par;
|
||||
|
||||
unregister_framebuffer (info);
|
||||
|
||||
/* Unmap frame buffer and registers */
|
||||
release_mem_region(pinfo->rsrc_fb.start,
|
||||
pinfo->rsrc_fb.end -
|
||||
pinfo->rsrc_fb.start + 1);
|
||||
release_mem_region(pinfo->rsrc_reg.start,
|
||||
pinfo->rsrc_reg.end -
|
||||
pinfo->rsrc_reg.start + 1);
|
||||
iounmap(pinfo->frame_buffer);
|
||||
iounmap(pinfo->platinum_regs);
|
||||
release_mem_region(pinfo->cmap_regs_phys, 0x1000);
|
||||
iounmap(pinfo->cmap_regs);
|
||||
|
||||
framebuffer_release(info);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static struct of_device_id platinumfb_match[] =
|
||||
{
|
||||
{
|
||||
.name = "platinum",
|
||||
},
|
||||
{},
|
||||
};
|
||||
|
||||
static struct of_platform_driver platinum_driver =
|
||||
{
|
||||
.name = "platinumfb",
|
||||
.match_table = platinumfb_match,
|
||||
.probe = platinumfb_probe,
|
||||
.remove = platinumfb_remove,
|
||||
};
|
||||
|
||||
static int __init platinumfb_init(void)
|
||||
{
|
||||
#ifndef MODULE
|
||||
char *option = NULL;
|
||||
|
||||
if (fb_get_options("platinumfb", &option))
|
||||
return -ENODEV;
|
||||
platinumfb_setup(option);
|
||||
#endif
|
||||
of_register_platform_driver(&platinum_driver);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void __exit platinumfb_exit(void)
|
||||
{
|
||||
of_unregister_platform_driver(&platinum_driver);
|
||||
}
|
||||
|
||||
MODULE_LICENSE("GPL");
|
||||
MODULE_DESCRIPTION("framebuffer driver for Apple Platinum video");
|
||||
module_init(platinumfb_init);
|
||||
|
||||
#ifdef MODULE
|
||||
module_exit(platinumfb_exit);
|
||||
#endif
|
||||
Reference in New Issue
Block a user