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-rw-r--r--drivers/video/bw2.c213
1 files changed, 96 insertions, 117 deletions
diff --git a/drivers/video/bw2.c b/drivers/video/bw2.c
index 6577fdfdfc16..c66e3d52cbf3 100644
--- a/drivers/video/bw2.c
+++ b/drivers/video/bw2.c
@@ -1,6 +1,6 @@
/* bw2.c: BWTWO frame buffer driver
*
- * Copyright (C) 2003 David S. Miller (davem@redhat.com)
+ * Copyright (C) 2003, 2006 David S. Miller (davem@davemloft.net)
* 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)
@@ -19,14 +19,11 @@
#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"
/*
@@ -59,30 +56,30 @@ static struct fb_ops bw2_ops = {
#define BWTWO_REGISTER_OFFSET 0x400000
struct bt_regs {
- volatile u32 addr;
- volatile u32 color_map;
- volatile u32 control;
- volatile u32 cursor;
+ u32 addr;
+ u32 color_map;
+ u32 control;
+ u32 cursor;
};
struct bw2_regs {
struct bt_regs cmap;
- 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;
+ 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;
};
/* Status Register Constants */
@@ -117,9 +114,8 @@ struct bw2_par {
#define BW2_FLAG_BLANKED 0x00000001
unsigned long physbase;
+ unsigned long which_io;
unsigned long fbsize;
-
- struct sbus_dev *sdev;
};
/**
@@ -174,9 +170,7 @@ static int bw2_mmap(struct fb_info *info, struct vm_area_struct *vma)
return sbusfb_mmap_helper(bw2_mmap_map,
par->physbase, par->fbsize,
- (par->sdev ?
- par->sdev->reg_addrs[0].which_io :
- 0),
+ par->which_io,
vma);
}
@@ -288,139 +282,124 @@ static void bw2_do_default_mode(struct bw2_par *par, struct fb_info *info,
struct all_info {
struct fb_info info;
struct bw2_par par;
- struct list_head list;
};
-static LIST_HEAD(bw2_list);
-static void bw2_init_one(struct sbus_dev *sdev)
+static int __devinit bw2_init_one(struct of_device *op)
{
+ struct device_node *dp = op->node;
struct all_info *all;
- struct resource *resp;
-#ifdef CONFIG_SUN4
- struct resource res;
-#endif
- int linebytes;
+ int linebytes, err;
- all = kmalloc(sizeof(*all), GFP_KERNEL);
- if (!all) {
- printk(KERN_ERR "bw2: Cannot allocate memory.\n");
- return;
- }
- memset(all, 0, sizeof(*all));
-
- INIT_LIST_HEAD(&all->list);
+ all = kzalloc(sizeof(*all), GFP_KERNEL);
+ if (!all)
+ return -ENOMEM;
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
- {
- BUG_ON(!sdev);
- 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->par.physbase = op->resource[0].start;
+ all->par.which_io = op->resource[0].flags & IORESOURCE_BITS;
+
+ sbusfb_fill_var(&all->info.var, dp->node, 1);
+ linebytes = of_getintprop_default(dp, "linebytes",
+ all->info.var.xres);
+
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 = sbus_ioremap(resp, BWTWO_REGISTER_OFFSET,
- sizeof(struct bw2_regs), "bw2 regs");
+ all->par.regs = of_ioremap(&op->resource[0], BWTWO_REGISTER_OFFSET,
+ sizeof(struct bw2_regs), "bw2 regs");
- if (sdev && !prom_getbool(sdev->prom_node, "width"))
+ if (!of_find_property(dp, "width", NULL))
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;
-#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.screen_base =
+ sbus_ioremap(&op->resource[0], 0, all->par.fbsize, "bw2 ram");
all->info.par = &all->par;
bw2_blank(0, &all->info);
bw2_init_fix(&all->info, linebytes);
- if (register_framebuffer(&all->info) < 0) {
- printk(KERN_ERR "bw2: Could not register framebuffer.\n");
+ 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);
kfree(all);
- return;
+ return err;
}
- list_add(&all->list, &bw2_list);
+ dev_set_drvdata(&op->dev, all);
+
+ printk("%s: bwtwo at %lx:%lx\n",
+ dp->full_name,
+ all->par.which_io, all->par.physbase);
- printk("bw2: bwtwo at %lx:%lx\n",
- (long) (sdev ? sdev->reg_addrs[0].which_io : 0),
- (long) all->par.physbase);
+ return 0;
}
-int __init bw2_init(void)
+static int __devinit bw2_probe(struct of_device *dev, const struct of_device_id *match)
{
- struct sbus_bus *sbus;
- struct sbus_dev *sdev;
+ struct of_device *op = to_of_device(&dev->dev);
- if (fb_get_options("bw2fb", NULL))
- return -ENODEV;
+ return bw2_init_one(op);
+}
-#ifdef CONFIG_SUN4
- bw2_init_one(NULL);
-#endif
- for_all_sbusdev(sdev, sbus) {
- if (!strcmp(sdev->prom_name, "bwtwo"))
- bw2_init_one(sdev);
- }
+static int __devexit bw2_remove(struct of_device *dev)
+{
+ struct all_info *all = dev_get_drvdata(&dev->dev);
+
+ unregister_framebuffer(&all->info);
+
+ of_iounmap(all->par.regs, sizeof(struct bw2_regs));
+ of_iounmap(all->info.screen_base, all->par.fbsize);
+
+ kfree(all);
+
+ dev_set_drvdata(&dev->dev, NULL);
return 0;
}
-void __exit bw2_exit(void)
-{
- struct list_head *pos, *tmp;
+static struct of_device_id bw2_match[] = {
+ {
+ .name = "bwtwo",
+ },
+ {},
+};
+MODULE_DEVICE_TABLE(of, bw2_match);
- list_for_each_safe(pos, tmp, &bw2_list) {
- struct all_info *all = list_entry(pos, typeof(*all), list);
+static struct of_platform_driver bw2_driver = {
+ .name = "bw2",
+ .match_table = bw2_match,
+ .probe = bw2_probe,
+ .remove = __devexit_p(bw2_remove),
+};
- unregister_framebuffer(&all->info);
- kfree(all);
- }
+static int __init bw2_init(void)
+{
+ if (fb_get_options("bw2fb", NULL))
+ return -ENODEV;
+
+ return of_register_driver(&bw2_driver, &of_bus_type);
}
-int __init
-bw2_setup(char *arg)
+static void __exit bw2_exit(void)
{
- /* No cmdline options yet... */
- return 0;
+ return of_unregister_driver(&bw2_driver);
}
-module_init(bw2_init);
-#ifdef MODULE
+module_init(bw2_init);
module_exit(bw2_exit);
-#endif
MODULE_DESCRIPTION("framebuffer driver for BWTWO chipsets");
-MODULE_AUTHOR("David S. Miller <davem@redhat.com>");
+MODULE_AUTHOR("David S. Miller <davem@davemloft.net>");
+MODULE_VERSION("2.0");
MODULE_LICENSE("GPL");
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-04 06:23:25 +0100