Debian Sparc 5.4 on Sun blade 2500

Message ID	20100316.151546.01215837.davem@davemloft.net
State	Not Applicable
Delegated to:	David Miller
Headers	show Return-Path: <sparclinux-owner@vger.kernel.org> Date: Tue, 16 Mar 2010 15:15:46 -0700 (PDT) Message-Id: <20100316.151546.01215837.davem@davemloft.net> To: fberckel@xs4all.nl, joy@debian.org Cc: sparclinux@vger.kernel.org, debian-sparc@lists.debian.org, pcao@ashland.edu Subject: Re: Debian Sparc 5.4 on Sun blade 2500 From: David Miller <davem@davemloft.net> In-Reply-To: <20100316.124042.144387705.davem@davemloft.net> References: <52FD3675-5FCD-4F5C-978C-9045ADC75C31@ashland.edu> <1268768091.1768.29.camel@deblnxsrv254.localdomain> <20100316.124042.144387705.davem@davemloft.net> Mime-Version: 1.0 Content-Type: Multipart/Mixed; boundary="--Next_Part(Tue_Mar_16_15_15_46_2010_673)--" Content-Transfer-Encoding: 7bit Sender: sparclinux-owner@vger.kernel.org Precedence: bulk

From 2d378b9179881b46a0faf11430efb421fe03ddd8 Mon Sep 17 00:00:00 2001 From: David S. Miller <davem@davemloft.net> Date: Sat, 13 Mar 2010 16:25:03 -0800 Subject: [PATCH] sparc64: Add very basic XVR-1000 framebuffer driver. Signed-off-by: David S. Miller <davem@davemloft.net> Acked-by: Frans van Berckel <fberckel@xs4all.nl> --- drivers/video/Kconfig | 12 +++ drivers/video/Makefile | 1 + drivers/video/sunxvr1000.c | 228 ++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 241 insertions(+), 0 deletions(-) create mode 100644 drivers/video/sunxvr1000.c diff --git a/drivers/video/Kconfig b/drivers/video/Kconfig index 5a5c303..a5755b8 100644 --- a/drivers/video/Kconfig +++ b/drivers/video/Kconfig @@ -909,6 +909,18 @@ config FB_XVR2500 mostly initialized the card already. It is treated as a completely dumb framebuffer device. +config FB_XVR1000 + bool "Sun XVR-1000 support" + depends on SPARC64 + select FB_CFB_FILLRECT + select FB_CFB_COPYAREA + select FB_CFB_IMAGEBLIT + help + This is the framebuffer device for the Sun XVR-1000 and similar + graphics cards. The driver only works on sparc64 systems where + the system firmware has mostly initialized the card already. It + is treated as a completely dumb framebuffer device. + config FB_PVR2 tristate "NEC PowerVR 2 display support" depends on FB && SH_DREAMCAST diff --git a/drivers/video/Makefile b/drivers/video/Makefile index 4ecb30c..8c9a357 100644 --- a/drivers/video/Makefile +++ b/drivers/video/Makefile @@ -79,6 +79,7 @@ obj-$(CONFIG_FB_N411) += n411.o obj-$(CONFIG_FB_HGA) += hgafb.o obj-$(CONFIG_FB_XVR500) += sunxvr500.o obj-$(CONFIG_FB_XVR2500) += sunxvr2500.o +obj-$(CONFIG_FB_XVR1000) += sunxvr1000.o obj-$(CONFIG_FB_IGA) += igafb.o obj-$(CONFIG_FB_APOLLO) += dnfb.o obj-$(CONFIG_FB_Q40) += q40fb.o diff --git a/drivers/video/sunxvr1000.c b/drivers/video/sunxvr1000.c new file mode 100644 index 0000000..a8248c0 --- /dev/null +++ b/drivers/video/sunxvr1000.c @@ -0,0 +1,228 @@ +/* sunxvr1000.c: Sun XVR-1000 driver for sparc64 systems + * + * Copyright (C) 2010 David S. Miller (davem@davemloft.net) + */ + +#include <linux/module.h> +#include <linux/kernel.h> +#include <linux/slab.h> +#include <linux/fb.h> +#include <linux/init.h> +#include <linux/of_device.h> + +struct gfb_info { + struct fb_info *info; + + 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[16]; +}; + +static int __devinit gfb_get_props(struct gfb_info *gp) +{ + gp->width = of_getintprop_default(gp->of_node, "width", 0); + gp->height = of_getintprop_default(gp->of_node, "height", 0); + gp->depth = of_getintprop_default(gp->of_node, "depth", 32); + + if (!gp->width || !gp->height) { + printk(KERN_ERR "gfb: Critical properties missing for %s\n", + gp->of_node->full_name); + return -EINVAL; + } + + return 0; +} + +static int gfb_setcolreg(unsigned regno, + unsigned red, unsigned green, unsigned blue, + unsigned transp, struct fb_info *info) +{ + u32 value; + + if (regno < 16) { + red >>= 8; + green >>= 8; + blue >>= 8; + + value = (blue << 16) | (green << 8) | red; + ((u32 *)info->pseudo_palette)[regno] = value; + } + + return 0; +} + +static struct fb_ops gfb_ops = { + .owner = THIS_MODULE, + .fb_setcolreg = gfb_setcolreg, + .fb_fillrect = cfb_fillrect, + .fb_copyarea = cfb_copyarea, + .fb_imageblit = cfb_imageblit, +}; + +static int __devinit gfb_set_fbinfo(struct gfb_info *gp) +{ + struct fb_info *info = gp->info; + struct fb_var_screeninfo *var = &info->var; + + info->flags = FBINFO_DEFAULT; + info->fbops = &gfb_ops; + info->screen_base = gp->fb_base; + info->screen_size = gp->fb_size; + + info->pseudo_palette = gp->pseudo_palette; + + /* Fill fix common fields */ + strlcpy(info->fix.id, "gfb", sizeof(info->fix.id)); + info->fix.smem_start = gp->fb_base_phys; + info->fix.smem_len = gp->fb_size; + info->fix.type = FB_TYPE_PACKED_PIXELS; + if (gp->depth == 32 || gp->depth == 24) + info->fix.visual = FB_VISUAL_TRUECOLOR; + else + info->fix.visual = FB_VISUAL_PSEUDOCOLOR; + + var->xres = gp->width; + var->yres = gp->height; + var->xres_virtual = var->xres; + var->yres_virtual = var->yres; + var->bits_per_pixel = gp->depth; + + var->red.offset = 0; + var->red.length = 8; + var->green.offset = 8; + var->green.length = 8; + var->blue.offset = 16; + var->blue.length = 8; + var->transp.offset = 0; + var->transp.length = 0; + + if (fb_alloc_cmap(&info->cmap, 256, 0)) { + printk(KERN_ERR "gfb: Cannot allocate color map.\n"); + return -ENOMEM; + } + + return 0; +} + +static int __devinit gfb_probe(struct of_device *op, + const struct of_device_id *match) +{ + struct device_node *dp = op->node; + struct fb_info *info; + struct gfb_info *gp; + int err; + + info = framebuffer_alloc(sizeof(struct gfb_info), &op->dev); + if (!info) { + printk(KERN_ERR "gfb: Cannot allocate fb_info\n"); + err = -ENOMEM; + goto err_out; + } + + gp = info->par; + gp->info = info; + gp->of_node = dp; + + gp->fb_base_phys = op->resource[6].start; + + err = gfb_get_props(gp); + if (err) + goto err_release_fb; + + /* Framebuffer length is the same regardless of resolution. */ + info->fix.line_length = 16384; + gp->fb_size = info->fix.line_length * gp->height; + + gp->fb_base = of_ioremap(&op->resource[6], 0, + gp->fb_size, "gfb fb"); + if (!gp->fb_base) + goto err_release_fb; + + err = gfb_set_fbinfo(gp); + if (err) + goto err_unmap_fb; + + printk("gfb: Found device at %s\n", dp->full_name); + + err = register_framebuffer(info); + if (err < 0) { + printk(KERN_ERR "gfb: Could not register framebuffer %s\n", + dp->full_name); + goto err_unmap_fb; + } + + dev_set_drvdata(&op->dev, info); + + return 0; + +err_unmap_fb: + of_iounmap(&op->resource[6], gp->fb_base, gp->fb_size); + +err_release_fb: + framebuffer_release(info); + +err_out: + return err; +} + +static int __devexit gfb_remove(struct of_device *op) +{ + struct fb_info *info = dev_get_drvdata(&op->dev); + struct gfb_info *gp = info->par; + + unregister_framebuffer(info); + + iounmap(gp->fb_base); + + of_iounmap(&op->resource[6], gp->fb_base, gp->fb_size); + + framebuffer_release(info); + + dev_set_drvdata(&op->dev, NULL); + + return 0; +} + +static const struct of_device_id gfb_match[] = { + { + .name = "SUNW,gfb", + }, + {}, +}; +MODULE_DEVICE_TABLE(of, ffb_match); + +static struct of_platform_driver gfb_driver = { + .name = "gfb", + .match_table = gfb_match, + .probe = gfb_probe, + .remove = __devexit_p(gfb_remove), +}; + +static int __init gfb_init(void) +{ + if (fb_get_options("gfb", NULL)) + return -ENODEV; + + return of_register_driver(&gfb_driver, &of_bus_type); +} + +static void __exit gfb_exit(void) +{ + of_unregister_driver(&gfb_driver); +} + +module_init(gfb_init); +module_exit(gfb_exit); + +MODULE_DESCRIPTION("framebuffer driver for Sun XVR-1000 graphics"); +MODULE_AUTHOR("David S. Miller <davem@davemloft.net>"); +MODULE_VERSION("1.0"); +MODULE_LICENSE("GPL"); -- 1.6.6.1

Debian Sparc 5.4 on Sun blade 2500

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