/* bw2.c: BWTWO frame buffer driver
*
- * Copyright (C) 2003, 2006 David S. Miller (davem@davemloft.net)
+ * Copyright (C) 2003 David S. Miller (davem@redhat.com)
* Copyright (C) 1996,1998 Jakub Jelinek (jj@ultra.linux.cz)
* Copyright (C) 1996 Miguel de Icaza (miguel@nuclecu.unam.mx)
* Copyright (C) 1997 Eddie C. Dost (ecd@skynet.be)
#include <linux/mm.h>
#include <asm/io.h>
+#include <asm/sbus.h>
#include <asm/oplib.h>
-#include <asm/prom.h>
-#include <asm/of_device.h>
#include <asm/fbio.h>
+#ifdef CONFIG_SPARC32
+#include <asm/sun4paddr.h>
+#endif
+
#include "sbuslib.h"
/*
#define BWTWO_REGISTER_OFFSET 0x400000
struct bt_regs {
- u32 addr;
- u32 color_map;
- u32 control;
- u32 cursor;
+ volatile u32 addr;
+ volatile u32 color_map;
+ volatile u32 control;
+ volatile u32 cursor;
};
struct bw2_regs {
struct bt_regs cmap;
- u8 control;
- u8 status;
- u8 cursor_start;
- u8 cursor_end;
- u8 h_blank_start;
- u8 h_blank_end;
- u8 h_sync_start;
- u8 h_sync_end;
- u8 comp_sync_end;
- u8 v_blank_start_high;
- u8 v_blank_start_low;
- u8 v_blank_end;
- u8 v_sync_start;
- u8 v_sync_end;
- u8 xfer_holdoff_start;
- u8 xfer_holdoff_end;
+ volatile u8 control;
+ volatile u8 status;
+ volatile u8 cursor_start;
+ volatile u8 cursor_end;
+ volatile u8 h_blank_start;
+ volatile u8 h_blank_end;
+ volatile u8 h_sync_start;
+ volatile u8 h_sync_end;
+ volatile u8 comp_sync_end;
+ volatile u8 v_blank_start_high;
+ volatile u8 v_blank_start_low;
+ volatile u8 v_blank_end;
+ volatile u8 v_sync_start;
+ volatile u8 v_sync_end;
+ volatile u8 xfer_holdoff_start;
+ volatile u8 xfer_holdoff_end;
};
/* Status Register Constants */
#define BW2_FLAG_BLANKED 0x00000001
unsigned long physbase;
- unsigned long which_io;
unsigned long fbsize;
+
+ struct sbus_dev *sdev;
};
/**
return sbusfb_mmap_helper(bw2_mmap_map,
par->physbase, par->fbsize,
- par->which_io,
+ (par->sdev ?
+ par->sdev->reg_addrs[0].which_io :
+ 0),
vma);
}
struct all_info {
struct fb_info info;
struct bw2_par par;
+ struct list_head list;
};
+static LIST_HEAD(bw2_list);
-static int __devinit bw2_init_one(struct of_device *op)
+static void bw2_init_one(struct sbus_dev *sdev)
{
- struct device_node *dp = op->node;
struct all_info *all;
- int linebytes, err;
-
- all = kzalloc(sizeof(*all), GFP_KERNEL);
- if (!all)
- return -ENOMEM;
-
- spin_lock_init(&all->par.lock);
+ struct resource *resp;
+#ifdef CONFIG_SUN4
+ struct resource res;
+#endif
+ int linebytes;
- all->par.physbase = op->resource[0].start;
- all->par.which_io = op->resource[0].flags & IORESOURCE_BITS;
+ all = kmalloc(sizeof(*all), GFP_KERNEL);
+ if (!all) {
+ printk(KERN_ERR "bw2: Cannot allocate memory.\n");
+ return;
+ }
+ memset(all, 0, sizeof(*all));
- sbusfb_fill_var(&all->info.var, dp->node, 1);
- linebytes = of_getintprop_default(dp, "linebytes",
- all->info.var.xres);
+ INIT_LIST_HEAD(&all->list);
+ spin_lock_init(&all->par.lock);
+ all->par.sdev = sdev;
+
+#ifdef CONFIG_SUN4
+ if (!sdev) {
+ all->par.physbase = sun4_bwtwo_physaddr;
+ res.start = sun4_bwtwo_physaddr;
+ res.end = res.start + BWTWO_REGISTER_OFFSET + sizeof(struct bw2_regs) - 1;
+ res.flags = IORESOURCE_IO;
+ resp = &res;
+ all->info.var.xres = all->info.var.xres_virtual = 1152;
+ all->info.var.yres = all->info.var.yres_virtual = 900;
+ all->info.var.bits_per_pixel = 1;
+ linebytes = 1152 / 8;
+ } else
+#else
+ {
+ if (!sdev)
+ BUG();
+ all->par.physbase = sdev->reg_addrs[0].phys_addr;
+ resp = &sdev->resource[0];
+ sbusfb_fill_var(&all->info.var, (sdev ? sdev->prom_node : 0), 1);
+ linebytes = prom_getintdefault(sdev->prom_node, "linebytes",
+ all->info.var.xres);
+ }
+#endif
all->info.var.red.length = all->info.var.green.length =
all->info.var.blue.length = all->info.var.bits_per_pixel;
all->info.var.red.offset = all->info.var.green.offset =
all->info.var.blue.offset = 0;
- all->par.regs = of_ioremap(&op->resource[0], BWTWO_REGISTER_OFFSET,
- sizeof(struct bw2_regs), "bw2 regs");
+ all->par.regs = sbus_ioremap(resp, BWTWO_REGISTER_OFFSET,
+ sizeof(struct bw2_regs), "bw2 regs");
- if (!of_find_property(dp, "width", NULL))
+ if (sdev && !prom_getbool(sdev->prom_node, "width"))
bw2_do_default_mode(&all->par, &all->info, &linebytes);
all->par.fbsize = PAGE_ALIGN(linebytes * all->info.var.yres);
all->info.flags = FBINFO_DEFAULT;
all->info.fbops = &bw2_ops;
-
- all->info.screen_base =
- sbus_ioremap(&op->resource[0], 0, all->par.fbsize, "bw2 ram");
+#if defined(CONFIG_SPARC32)
+ if (sdev)
+ all->info.screen_base = (char __iomem *)
+ prom_getintdefault(sdev->prom_node, "address", 0);
+#endif
+ if (!all->info.screen_base)
+ all->info.screen_base =
+ sbus_ioremap(resp, 0, all->par.fbsize, "bw2 ram");
all->info.par = &all->par;
bw2_blank(0, &all->info);
bw2_init_fix(&all->info, linebytes);
- err= register_framebuffer(&all->info);
- if (err < 0) {
- of_iounmap(all->par.regs, sizeof(struct bw2_regs));
- of_iounmap(all->info.screen_base, all->par.fbsize);
+ if (register_framebuffer(&all->info) < 0) {
+ printk(KERN_ERR "bw2: Could not register framebuffer.\n");
kfree(all);
- return err;
+ return;
}
- dev_set_drvdata(&op->dev, all);
-
- printk("%s: bwtwo at %lx:%lx\n",
- dp->full_name,
- all->par.which_io, all->par.physbase);
-
- return 0;
-}
-
-static int __devinit bw2_probe(struct of_device *dev, const struct of_device_id *match)
-{
- struct of_device *op = to_of_device(&dev->dev);
+ list_add(&all->list, &bw2_list);
- return bw2_init_one(op);
+ printk("bw2: bwtwo at %lx:%lx\n",
+ (long) (sdev ? sdev->reg_addrs[0].which_io : 0),
+ (long) all->par.physbase);
}
-static int __devexit bw2_remove(struct of_device *dev)
+int __init bw2_init(void)
{
- struct all_info *all = dev_get_drvdata(&dev->dev);
+ struct sbus_bus *sbus;
+ struct sbus_dev *sdev;
- unregister_framebuffer(&all->info);
-
- of_iounmap(all->par.regs, sizeof(struct bw2_regs));
- of_iounmap(all->info.screen_base, all->par.fbsize);
-
- kfree(all);
+ if (fb_get_options("bw2fb", NULL))
+ return -ENODEV;
- dev_set_drvdata(&dev->dev, NULL);
+#ifdef CONFIG_SUN4
+ bw2_init_one(NULL);
+#endif
+ for_all_sbusdev(sdev, sbus) {
+ if (!strcmp(sdev->prom_name, "bwtwo"))
+ bw2_init_one(sdev);
+ }
return 0;
}
-static struct of_device_id bw2_match[] = {
- {
- .name = "bwtwo",
- },
- {},
-};
-MODULE_DEVICE_TABLE(of, bw2_match);
-
-static struct of_platform_driver bw2_driver = {
- .name = "bw2",
- .match_table = bw2_match,
- .probe = bw2_probe,
- .remove = __devexit_p(bw2_remove),
-};
-
-static int __init bw2_init(void)
+void __exit bw2_exit(void)
{
- if (fb_get_options("bw2fb", NULL))
- return -ENODEV;
+ struct list_head *pos, *tmp;
- return of_register_driver(&bw2_driver, &of_bus_type);
+ list_for_each_safe(pos, tmp, &bw2_list) {
+ struct all_info *all = list_entry(pos, typeof(*all), list);
+
+ unregister_framebuffer(&all->info);
+ kfree(all);
+ }
}
-static void __exit bw2_exit(void)
+int __init
+bw2_setup(char *arg)
{
- return of_unregister_driver(&bw2_driver);
+ /* No cmdline options yet... */
+ return 0;
}
-
module_init(bw2_init);
+
+#ifdef MODULE
module_exit(bw2_exit);
+#endif
MODULE_DESCRIPTION("framebuffer driver for BWTWO chipsets");
-MODULE_AUTHOR("David S. Miller <davem@davemloft.net>");
-MODULE_VERSION("2.0");
+MODULE_AUTHOR("David S. Miller <davem@redhat.com>");
MODULE_LICENSE("GPL");
git://git.onelab.eu / linux-2.6.git / blobdiff