diff options
author | David S. Miller <davem@sunset.davemloft.net> | 2007-05-06 22:45:50 -0700 |
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committer | David S. Miller <davem@sunset.davemloft.net> | 2007-05-06 22:45:50 -0700 |
commit | 71227521459872c321e7a581e82723bbc1aa33e1 (patch) | |
tree | 3e232a92291998a1a274b8171d5741bb4a7df472 /drivers/video | |
parent | 453e93b348ebabc517149b9d9a05042a3c1ccc82 (diff) | |
download | op-kernel-dev-71227521459872c321e7a581e82723bbc1aa33e1.zip op-kernel-dev-71227521459872c321e7a581e82723bbc1aa33e1.tar.gz |
[VIDEO]: Add Sun XVR-2500 framebuffer driver.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/video')
-rw-r--r-- | drivers/video/Kconfig | 13 | ||||
-rw-r--r-- | drivers/video/Makefile | 1 | ||||
-rw-r--r-- | drivers/video/sunxvr2500.c | 277 |
3 files changed, 291 insertions, 0 deletions
diff --git a/drivers/video/Kconfig b/drivers/video/Kconfig index 0a614be..344c375 100644 --- a/drivers/video/Kconfig +++ b/drivers/video/Kconfig @@ -1396,6 +1396,19 @@ config FB_XVR500 mostly initialized the card already. It is treated as a completely dumb framebuffer device. +config FB_XVR2500 + bool "Sun XVR-2500 3DLABS Wildcat support" + depends on FB && PCI && SPARC64 + select FB_CFB_FILLRECT + select FB_CFB_COPYAREA + select FB_CFB_IMAGEBLIT + help + This is the framebuffer device for the Sun XVR-2500 and similar + graphics cards based upon the 3DLABS Wildcat chipset. The driver + only works on sparc64 systems where the system firwmare has + mostly initialized the card already. It is treated as a + completely dumb framebuffer device. + config FB_PCI bool "PCI framebuffers" depends on (FB = y) && PCI && SPARC diff --git a/drivers/video/Makefile b/drivers/video/Makefile index a56be58..558473d 100644 --- a/drivers/video/Makefile +++ b/drivers/video/Makefile @@ -68,6 +68,7 @@ obj-$(CONFIG_FB_ATARI) += atafb.o c2p.o atafb_mfb.o \ obj-$(CONFIG_FB_MAC) += macfb.o obj-$(CONFIG_FB_HGA) += hgafb.o obj-$(CONFIG_FB_XVR500) += sunxvr500.o +obj-$(CONFIG_FB_XVR2500) += sunxvr2500.o obj-$(CONFIG_FB_IGA) += igafb.o obj-$(CONFIG_FB_APOLLO) += dnfb.o obj-$(CONFIG_FB_Q40) += q40fb.o diff --git a/drivers/video/sunxvr2500.c b/drivers/video/sunxvr2500.c new file mode 100644 index 0000000..4010492 --- /dev/null +++ b/drivers/video/sunxvr2500.c @@ -0,0 +1,277 @@ +/* s3d.c: Sun 3DLABS XVR-2500 et al. driver for sparc64 systems + * + * Copyright (C) 2007 David S. Miller (davem@davemloft.net) + */ + +#include <linux/module.h> +#include <linux/kernel.h> +#include <linux/slab.h> +#include <linux/fb.h> +#include <linux/pci.h> +#include <linux/init.h> + +#include <asm/io.h> +#include <asm/prom.h> +#include <asm/of_device.h> + +struct s3d_info { + struct fb_info *info; + struct pci_dev *pdev; + + char __iomem *fb_base; + unsigned long fb_base_phys; + + struct device_node *of_node; + + unsigned int width; + unsigned int height; + unsigned int depth; + unsigned int fb_size; + + u32 pseudo_palette[256]; +}; + +static int __devinit s3d_get_props(struct s3d_info *sp) +{ + sp->width = of_getintprop_default(sp->of_node, "width", 0); + sp->height = of_getintprop_default(sp->of_node, "height", 0); + sp->depth = of_getintprop_default(sp->of_node, "depth", 8); + + if (!sp->width || !sp->height) { + printk(KERN_ERR "s3d: Critical properties missing for %s\n", + pci_name(sp->pdev)); + return -EINVAL; + } + + return 0; +} + +static int s3d_setcolreg(unsigned regno, + unsigned red, unsigned green, unsigned blue, + unsigned transp, struct fb_info *info) +{ + u32 value; + + if (regno >= 256) + return 1; + + red >>= 8; + green >>= 8; + blue >>= 8; + + value = (blue << 24) | (green << 16) | (red << 8); + ((u32 *)info->pseudo_palette)[regno] = value; + + return 0; +} + +static struct fb_ops s3d_ops = { + .owner = THIS_MODULE, + .fb_setcolreg = s3d_setcolreg, + .fb_fillrect = cfb_fillrect, + .fb_copyarea = cfb_copyarea, + .fb_imageblit = cfb_imageblit, +}; + +static int __devinit s3d_set_fbinfo(struct s3d_info *sp) +{ + struct fb_info *info = sp->info; + struct fb_var_screeninfo *var = &info->var; + + info->flags = FBINFO_DEFAULT; + info->fbops = &s3d_ops; + info->screen_base = sp->fb_base; + info->screen_size = sp->fb_size; + + info->pseudo_palette = sp->pseudo_palette; + + /* Fill fix common fields */ + strlcpy(info->fix.id, "s3d", sizeof(info->fix.id)); + info->fix.smem_start = sp->fb_base_phys; + info->fix.smem_len = sp->fb_size; + info->fix.type = FB_TYPE_PACKED_PIXELS; + if (sp->depth == 32 || sp->depth == 24) + info->fix.visual = FB_VISUAL_TRUECOLOR; + else + info->fix.visual = FB_VISUAL_PSEUDOCOLOR; + + var->xres = sp->width; + var->yres = sp->height; + var->xres_virtual = var->xres; + var->yres_virtual = var->yres; + var->bits_per_pixel = sp->depth; + + var->red.offset = 8; + var->red.length = 8; + var->green.offset = 16; + var->green.length = 8; + var->blue.offset = 24; + var->blue.length = 8; + var->transp.offset = 0; + var->transp.length = 0; + + if (fb_alloc_cmap(&info->cmap, 256, 0)) { + printk(KERN_ERR "s3d: Cannot allocate color map.\n"); + return -ENOMEM; + } + + return 0; +} + +static int __devinit s3d_pci_register(struct pci_dev *pdev, + const struct pci_device_id *ent) +{ + struct fb_info *info; + struct s3d_info *sp; + int err; + + err = pci_enable_device(pdev); + if (err < 0) { + printk(KERN_ERR "s3d: Cannot enable PCI device %s\n", + pci_name(pdev)); + goto err_out; + } + + info = framebuffer_alloc(sizeof(struct s3d_info), &pdev->dev); + if (!info) { + printk(KERN_ERR "s3d: Cannot allocate fb_info\n"); + err = -ENOMEM; + goto err_disable; + } + + sp = info->par; + sp->info = info; + sp->pdev = pdev; + sp->of_node = pci_device_to_OF_node(pdev); + if (!sp->of_node) { + printk(KERN_ERR "s3d: Cannot find OF node of %s\n", + pci_name(pdev)); + err = -ENODEV; + goto err_release_fb; + } + + sp->fb_base_phys = pci_resource_start (pdev, 1); + + err = pci_request_region(pdev, 1, "s3d framebuffer"); + if (err < 0) { + printk("s3d: Cannot request region 1 for %s\n", + pci_name(pdev)); + goto err_release_fb; + } + + err = s3d_get_props(sp); + if (err) + goto err_release_pci; + + /* XXX 'linebytes' is often wrong, it is equal to the width + * XXX with depth of 32 on my XVR-2500 which is clearly not + * XXX right. So we don't try to use it. + */ + switch (sp->depth) { + case 8: + info->fix.line_length = sp->width; + break; + case 16: + info->fix.line_length = sp->width * 2; + break; + case 24: + info->fix.line_length = sp->width * 3; + break; + case 32: + info->fix.line_length = sp->width * 4; + break; + } + sp->fb_size = info->fix.line_length * sp->height; + + sp->fb_base = ioremap(sp->fb_base_phys, sp->fb_size); + if (!sp->fb_base) + goto err_release_pci; + + err = s3d_set_fbinfo(sp); + if (err) + goto err_unmap_fb; + + pci_set_drvdata(pdev, info); + + printk("s3d: Found device at %s\n", pci_name(pdev)); + + err = register_framebuffer(info); + if (err < 0) { + printk(KERN_ERR "s3d: Could not register framebuffer %s\n", + pci_name(pdev)); + goto err_unmap_fb; + } + + return 0; + +err_unmap_fb: + iounmap(sp->fb_base); + +err_release_pci: + pci_release_region(pdev, 1); + +err_release_fb: + framebuffer_release(info); + +err_disable: + pci_disable_device(pdev); + +err_out: + return err; +} + +static void __devexit s3d_pci_unregister(struct pci_dev *pdev) +{ + struct fb_info *info = pci_get_drvdata(pdev); + struct s3d_info *sp = info->par; + + unregister_framebuffer(info); + + iounmap(sp->fb_base); + + pci_release_region(pdev, 1); + + framebuffer_release(info); + + pci_disable_device(pdev); +} + +static struct pci_device_id s3d_pci_table[] = { + { /* XVR-2500 */ + PCI_DEVICE(PCI_VENDOR_ID_3DLABS, 0x0032), + .driver_data = 1, + }, + { /* XVR-500 */ + PCI_DEVICE(PCI_VENDOR_ID_3DLABS, 0x07a2), + .driver_data = 0, + }, + { 0, } +}; + +static struct pci_driver s3d_driver = { + .name = "s3d", + .id_table = s3d_pci_table, + .probe = s3d_pci_register, + .remove = __devexit_p(s3d_pci_unregister), +}; + +static int __init s3d_init(void) +{ + if (fb_get_options("s3d", NULL)) + return -ENODEV; + + return pci_register_driver(&s3d_driver); +} + +static void __exit s3d_exit(void) +{ + pci_unregister_driver(&s3d_driver); +} + +module_init(s3d_init); +module_exit(s3d_exit); + +MODULE_DESCRIPTION("framebuffer driver for Sun XVR-2500 graphics"); +MODULE_AUTHOR("David S. Miller <davem@davemloft.net>"); +MODULE_VERSION("1.0"); +MODULE_LICENSE("GPL"); |