[VIDEO]: Add Sun XVR-2500 framebuffer driver.
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller
parent
453e93b348
commit
7122752145
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@ -1396,6 +1396,19 @@ config FB_XVR500
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mostly initialized the card already. It is treated as a
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completely dumb framebuffer device.
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config FB_XVR2500
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bool "Sun XVR-2500 3DLABS Wildcat support"
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depends on FB && PCI && SPARC64
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select FB_CFB_FILLRECT
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select FB_CFB_COPYAREA
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select FB_CFB_IMAGEBLIT
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help
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This is the framebuffer device for the Sun XVR-2500 and similar
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graphics cards based upon the 3DLABS Wildcat chipset. The driver
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only works on sparc64 systems where the system firwmare has
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mostly initialized the card already. It is treated as a
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completely dumb framebuffer device.
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config FB_PCI
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bool "PCI framebuffers"
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depends on (FB = y) && PCI && SPARC
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@ -68,6 +68,7 @@ obj-$(CONFIG_FB_ATARI) += atafb.o c2p.o atafb_mfb.o \
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obj-$(CONFIG_FB_MAC) += macfb.o
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obj-$(CONFIG_FB_HGA) += hgafb.o
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obj-$(CONFIG_FB_XVR500) += sunxvr500.o
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obj-$(CONFIG_FB_XVR2500) += sunxvr2500.o
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obj-$(CONFIG_FB_IGA) += igafb.o
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obj-$(CONFIG_FB_APOLLO) += dnfb.o
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obj-$(CONFIG_FB_Q40) += q40fb.o
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@ -0,0 +1,277 @@
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/* s3d.c: Sun 3DLABS XVR-2500 et al. driver for sparc64 systems
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*
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* Copyright (C) 2007 David S. Miller (davem@davemloft.net)
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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/slab.h>
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#include <linux/fb.h>
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#include <linux/pci.h>
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#include <linux/init.h>
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#include <asm/io.h>
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#include <asm/prom.h>
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#include <asm/of_device.h>
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struct s3d_info {
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struct fb_info *info;
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struct pci_dev *pdev;
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char __iomem *fb_base;
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unsigned long fb_base_phys;
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struct device_node *of_node;
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unsigned int width;
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unsigned int height;
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unsigned int depth;
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unsigned int fb_size;
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u32 pseudo_palette[256];
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};
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static int __devinit s3d_get_props(struct s3d_info *sp)
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{
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sp->width = of_getintprop_default(sp->of_node, "width", 0);
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sp->height = of_getintprop_default(sp->of_node, "height", 0);
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sp->depth = of_getintprop_default(sp->of_node, "depth", 8);
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if (!sp->width || !sp->height) {
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printk(KERN_ERR "s3d: Critical properties missing for %s\n",
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pci_name(sp->pdev));
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return -EINVAL;
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}
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return 0;
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}
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static int s3d_setcolreg(unsigned regno,
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unsigned red, unsigned green, unsigned blue,
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unsigned transp, struct fb_info *info)
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{
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u32 value;
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if (regno >= 256)
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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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value = (blue << 24) | (green << 16) | (red << 8);
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((u32 *)info->pseudo_palette)[regno] = value;
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return 0;
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}
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static struct fb_ops s3d_ops = {
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.owner = THIS_MODULE,
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.fb_setcolreg = s3d_setcolreg,
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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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static int __devinit s3d_set_fbinfo(struct s3d_info *sp)
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{
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struct fb_info *info = sp->info;
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struct fb_var_screeninfo *var = &info->var;
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info->flags = FBINFO_DEFAULT;
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info->fbops = &s3d_ops;
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info->screen_base = sp->fb_base;
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info->screen_size = sp->fb_size;
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info->pseudo_palette = sp->pseudo_palette;
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/* Fill fix common fields */
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strlcpy(info->fix.id, "s3d", sizeof(info->fix.id));
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info->fix.smem_start = sp->fb_base_phys;
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info->fix.smem_len = sp->fb_size;
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info->fix.type = FB_TYPE_PACKED_PIXELS;
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if (sp->depth == 32 || sp->depth == 24)
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info->fix.visual = FB_VISUAL_TRUECOLOR;
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else
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info->fix.visual = FB_VISUAL_PSEUDOCOLOR;
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var->xres = sp->width;
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var->yres = sp->height;
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var->xres_virtual = var->xres;
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var->yres_virtual = var->yres;
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var->bits_per_pixel = sp->depth;
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var->red.offset = 8;
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var->red.length = 8;
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var->green.offset = 16;
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var->green.length = 8;
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var->blue.offset = 24;
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var->blue.length = 8;
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var->transp.offset = 0;
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var->transp.length = 0;
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if (fb_alloc_cmap(&info->cmap, 256, 0)) {
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printk(KERN_ERR "s3d: Cannot allocate color map.\n");
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return -ENOMEM;
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}
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return 0;
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}
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static int __devinit s3d_pci_register(struct pci_dev *pdev,
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const struct pci_device_id *ent)
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{
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struct fb_info *info;
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struct s3d_info *sp;
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int err;
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err = pci_enable_device(pdev);
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if (err < 0) {
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printk(KERN_ERR "s3d: Cannot enable PCI device %s\n",
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pci_name(pdev));
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goto err_out;
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}
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info = framebuffer_alloc(sizeof(struct s3d_info), &pdev->dev);
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if (!info) {
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printk(KERN_ERR "s3d: Cannot allocate fb_info\n");
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err = -ENOMEM;
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goto err_disable;
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}
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sp = info->par;
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sp->info = info;
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sp->pdev = pdev;
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sp->of_node = pci_device_to_OF_node(pdev);
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if (!sp->of_node) {
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printk(KERN_ERR "s3d: Cannot find OF node of %s\n",
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pci_name(pdev));
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err = -ENODEV;
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goto err_release_fb;
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}
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sp->fb_base_phys = pci_resource_start (pdev, 1);
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err = pci_request_region(pdev, 1, "s3d framebuffer");
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if (err < 0) {
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printk("s3d: Cannot request region 1 for %s\n",
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pci_name(pdev));
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goto err_release_fb;
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}
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err = s3d_get_props(sp);
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if (err)
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goto err_release_pci;
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/* XXX 'linebytes' is often wrong, it is equal to the width
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* XXX with depth of 32 on my XVR-2500 which is clearly not
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* XXX right. So we don't try to use it.
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*/
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switch (sp->depth) {
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case 8:
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info->fix.line_length = sp->width;
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break;
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case 16:
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info->fix.line_length = sp->width * 2;
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break;
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case 24:
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info->fix.line_length = sp->width * 3;
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break;
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case 32:
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info->fix.line_length = sp->width * 4;
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break;
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}
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sp->fb_size = info->fix.line_length * sp->height;
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sp->fb_base = ioremap(sp->fb_base_phys, sp->fb_size);
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if (!sp->fb_base)
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goto err_release_pci;
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err = s3d_set_fbinfo(sp);
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if (err)
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goto err_unmap_fb;
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pci_set_drvdata(pdev, info);
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printk("s3d: Found device at %s\n", pci_name(pdev));
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err = register_framebuffer(info);
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if (err < 0) {
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printk(KERN_ERR "s3d: Could not register framebuffer %s\n",
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pci_name(pdev));
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goto err_unmap_fb;
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}
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return 0;
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err_unmap_fb:
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iounmap(sp->fb_base);
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err_release_pci:
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pci_release_region(pdev, 1);
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err_release_fb:
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framebuffer_release(info);
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err_disable:
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pci_disable_device(pdev);
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err_out:
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return err;
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}
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static void __devexit s3d_pci_unregister(struct pci_dev *pdev)
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{
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struct fb_info *info = pci_get_drvdata(pdev);
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struct s3d_info *sp = info->par;
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unregister_framebuffer(info);
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iounmap(sp->fb_base);
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pci_release_region(pdev, 1);
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framebuffer_release(info);
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pci_disable_device(pdev);
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}
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static struct pci_device_id s3d_pci_table[] = {
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{ /* XVR-2500 */
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PCI_DEVICE(PCI_VENDOR_ID_3DLABS, 0x0032),
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.driver_data = 1,
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},
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{ /* XVR-500 */
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PCI_DEVICE(PCI_VENDOR_ID_3DLABS, 0x07a2),
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.driver_data = 0,
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},
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{ 0, }
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};
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static struct pci_driver s3d_driver = {
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.name = "s3d",
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.id_table = s3d_pci_table,
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.probe = s3d_pci_register,
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.remove = __devexit_p(s3d_pci_unregister),
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};
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static int __init s3d_init(void)
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{
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if (fb_get_options("s3d", NULL))
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return -ENODEV;
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return pci_register_driver(&s3d_driver);
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}
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static void __exit s3d_exit(void)
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{
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pci_unregister_driver(&s3d_driver);
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}
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module_init(s3d_init);
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module_exit(s3d_exit);
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MODULE_DESCRIPTION("framebuffer driver for Sun XVR-2500 graphics");
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MODULE_AUTHOR("David S. Miller <davem@davemloft.net>");
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MODULE_VERSION("1.0");
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MODULE_LICENSE("GPL");
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