/* p9100.c: P9100 frame buffer driver
*
- * Copyright (C) 2003 David S. Miller (davem@redhat.com)
+ * Copyright (C) 2003, 2006 David S. Miller (davem@davemloft.net)
* Copyright 1999 Derrick J Brashear (shadow@dementia.org)
*
* Driver layout based loosely on tgafb.c, see that file for credits.
#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>
#include "sbuslib.h"
struct p9100_regs {
/* Registers for the system control */
- volatile u32 sys_base;
- volatile u32 sys_config;
- volatile u32 sys_intr;
- volatile u32 sys_int_ena;
- volatile u32 sys_alt_rd;
- volatile u32 sys_alt_wr;
- volatile u32 sys_xxx[58];
+ u32 sys_base;
+ u32 sys_config;
+ u32 sys_intr;
+ u32 sys_int_ena;
+ u32 sys_alt_rd;
+ u32 sys_alt_wr;
+ u32 sys_xxx[58];
/* Registers for the video control */
- volatile u32 vid_base;
- volatile u32 vid_hcnt;
- volatile u32 vid_htotal;
- volatile u32 vid_hsync_rise;
- volatile u32 vid_hblank_rise;
- volatile u32 vid_hblank_fall;
- volatile u32 vid_hcnt_preload;
- volatile u32 vid_vcnt;
- volatile u32 vid_vlen;
- volatile u32 vid_vsync_rise;
- volatile u32 vid_vblank_rise;
- volatile u32 vid_vblank_fall;
- volatile u32 vid_vcnt_preload;
- volatile u32 vid_screenpaint_addr;
- volatile u32 vid_screenpaint_timectl1;
- volatile u32 vid_screenpaint_qsfcnt;
- volatile u32 vid_screenpaint_timectl2;
- volatile u32 vid_xxx[15];
+ u32 vid_base;
+ u32 vid_hcnt;
+ u32 vid_htotal;
+ u32 vid_hsync_rise;
+ u32 vid_hblank_rise;
+ u32 vid_hblank_fall;
+ u32 vid_hcnt_preload;
+ u32 vid_vcnt;
+ u32 vid_vlen;
+ u32 vid_vsync_rise;
+ u32 vid_vblank_rise;
+ u32 vid_vblank_fall;
+ u32 vid_vcnt_preload;
+ u32 vid_screenpaint_addr;
+ u32 vid_screenpaint_timectl1;
+ u32 vid_screenpaint_qsfcnt;
+ u32 vid_screenpaint_timectl2;
+ u32 vid_xxx[15];
/* Registers for the video control */
- volatile u32 vram_base;
- volatile u32 vram_memcfg;
- volatile u32 vram_refresh_pd;
- volatile u32 vram_refresh_cnt;
- volatile u32 vram_raslo_max;
- volatile u32 vram_raslo_cur;
- volatile u32 pwrup_cfg;
- volatile u32 vram_xxx[25];
+ u32 vram_base;
+ u32 vram_memcfg;
+ u32 vram_refresh_pd;
+ u32 vram_refresh_cnt;
+ u32 vram_raslo_max;
+ u32 vram_raslo_cur;
+ u32 pwrup_cfg;
+ u32 vram_xxx[25];
/* Registers for IBM RGB528 Palette */
- volatile u32 ramdac_cmap_wridx;
- volatile u32 ramdac_palette_data;
- volatile u32 ramdac_pixel_mask;
- volatile u32 ramdac_palette_rdaddr;
- volatile u32 ramdac_idx_lo;
- volatile u32 ramdac_idx_hi;
- volatile u32 ramdac_idx_data;
- volatile u32 ramdac_idx_ctl;
- volatile u32 ramdac_xxx[1784];
+ u32 ramdac_cmap_wridx;
+ u32 ramdac_palette_data;
+ u32 ramdac_pixel_mask;
+ u32 ramdac_palette_rdaddr;
+ u32 ramdac_idx_lo;
+ u32 ramdac_idx_hi;
+ u32 ramdac_idx_data;
+ u32 ramdac_idx_ctl;
+ u32 ramdac_xxx[1784];
};
struct p9100_cmd_parameng {
- volatile u32 parameng_status;
- volatile u32 parameng_bltcmd;
- volatile u32 parameng_quadcmd;
+ u32 parameng_status;
+ u32 parameng_bltcmd;
+ u32 parameng_quadcmd;
};
struct p9100_par {
#define P9100_FLAG_BLANKED 0x00000001
unsigned long physbase;
+ unsigned long which_io;
unsigned long fbsize;
-
- struct sbus_dev *sdev;
};
/**
return sbusfb_mmap_helper(p9100_mmap_map,
par->physbase, par->fbsize,
- par->sdev->reg_addrs[0].which_io,
- vma);
+ par->which_io, vma);
}
static int p9100_ioctl(struct fb_info *info, unsigned int cmd,
* Initialisation
*/
-static void
-p9100_init_fix(struct fb_info *info, int linebytes)
+static void p9100_init_fix(struct fb_info *info, int linebytes, struct device_node *dp)
{
- struct p9100_par *par = (struct p9100_par *)info->par;
-
- strlcpy(info->fix.id, par->sdev->prom_name, sizeof(info->fix.id));
+ strlcpy(info->fix.id, dp->name, sizeof(info->fix.id));
info->fix.type = FB_TYPE_PACKED_PIXELS;
info->fix.visual = FB_VISUAL_PSEUDOCOLOR;
struct all_info {
struct fb_info info;
struct p9100_par par;
- struct list_head list;
};
-static LIST_HEAD(p9100_list);
-static void p9100_init_one(struct sbus_dev *sdev)
+static int __devinit p9100_init_one(struct of_device *op)
{
+ struct device_node *dp = op->node;
struct all_info *all;
- int linebytes;
-
- all = kmalloc(sizeof(*all), GFP_KERNEL);
- if (!all) {
- printk(KERN_ERR "p9100: Cannot allocate memory.\n");
- return;
- }
- memset(all, 0, sizeof(*all));
+ int linebytes, err;
- 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;
/* This is the framebuffer and the only resource apps can mmap. */
- all->par.physbase = sdev->reg_addrs[2].phys_addr;
+ all->par.physbase = op->resource[2].start;
+ all->par.which_io = op->resource[2].flags & IORESOURCE_BITS;
- sbusfb_fill_var(&all->info.var, sdev->prom_node, 8);
+ sbusfb_fill_var(&all->info.var, dp->node, 8);
all->info.var.red.length = 8;
all->info.var.green.length = 8;
all->info.var.blue.length = 8;
- linebytes = prom_getintdefault(sdev->prom_node, "linebytes",
- all->info.var.xres);
+ linebytes = of_getintprop_default(dp, "linebytes",
+ all->info.var.xres);
all->par.fbsize = PAGE_ALIGN(linebytes * all->info.var.yres);
- all->par.regs = sbus_ioremap(&sdev->resource[0], 0,
- sizeof(struct p9100_regs), "p9100 regs");
+ all->par.regs = of_ioremap(&op->resource[0], 0,
+ sizeof(struct p9100_regs), "p9100 regs");
+ if (!all->par.regs) {
+ kfree(all);
+ return -ENOMEM;
+ }
all->info.flags = FBINFO_DEFAULT;
all->info.fbops = &p9100_ops;
-#ifdef CONFIG_SPARC32
- 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(&sdev->resource[2], 0,
- all->par.fbsize, "p9100 ram");
+ all->info.screen_base = of_ioremap(&op->resource[2], 0,
+ all->par.fbsize, "p9100 ram");
+ if (!all->info.screen_base) {
+ of_iounmap(&op->resource[0],
+ all->par.regs, sizeof(struct p9100_regs));
+ kfree(all);
+ return -ENOMEM;
+ }
all->info.par = &all->par;
p9100_blank(0, &all->info);
if (fb_alloc_cmap(&all->info.cmap, 256, 0)) {
- printk(KERN_ERR "p9100: Could not allocate color map.\n");
+ of_iounmap(&op->resource[0],
+ all->par.regs, sizeof(struct p9100_regs));
+ of_iounmap(&op->resource[2],
+ all->info.screen_base, all->par.fbsize);
kfree(all);
- return;
+ return -ENOMEM;
}
- p9100_init_fix(&all->info, linebytes);
+ p9100_init_fix(&all->info, linebytes, dp);
- if (register_framebuffer(&all->info) < 0) {
- printk(KERN_ERR "p9100: Could not register framebuffer.\n");
+ err = register_framebuffer(&all->info);
+ if (err < 0) {
fb_dealloc_cmap(&all->info.cmap);
+ of_iounmap(&op->resource[0],
+ all->par.regs, sizeof(struct p9100_regs));
+ of_iounmap(&op->resource[2],
+ all->info.screen_base, all->par.fbsize);
kfree(all);
- return;
+ return err;
}
fb_set_cmap(&all->info.cmap, &all->info);
- list_add(&all->list, &p9100_list);
+ dev_set_drvdata(&op->dev, all);
+
+ printk("%s: p9100 at %lx:%lx\n",
+ dp->full_name,
+ all->par.which_io, all->par.physbase);
- printk("p9100: %s at %lx:%lx\n",
- sdev->prom_name,
- (long) sdev->reg_addrs[0].which_io,
- (long) sdev->reg_addrs[0].phys_addr);
+ return 0;
}
-int __init p9100_init(void)
+static int __devinit p9100_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("p9100fb", NULL))
- return -ENODEV;
+ return p9100_init_one(op);
+}
- for_all_sbusdev(sdev, sbus) {
- if (!strcmp(sdev->prom_name, "p9100"))
- p9100_init_one(sdev);
- }
+static int __devexit p9100_remove(struct of_device *op)
+{
+ struct all_info *all = dev_get_drvdata(&op->dev);
+
+ unregister_framebuffer(&all->info);
+ fb_dealloc_cmap(&all->info.cmap);
+
+ of_iounmap(&op->resource[0], all->par.regs, sizeof(struct p9100_regs));
+ of_iounmap(&op->resource[2], all->info.screen_base, all->par.fbsize);
+
+ kfree(all);
+
+ dev_set_drvdata(&op->dev, NULL);
return 0;
}
-void __exit p9100_exit(void)
-{
- struct list_head *pos, *tmp;
+static struct of_device_id p9100_match[] = {
+ {
+ .name = "p9100",
+ },
+ {},
+};
+MODULE_DEVICE_TABLE(of, p9100_match);
- list_for_each_safe(pos, tmp, &p9100_list) {
- struct all_info *all = list_entry(pos, typeof(*all), list);
+static struct of_platform_driver p9100_driver = {
+ .name = "p9100",
+ .match_table = p9100_match,
+ .probe = p9100_probe,
+ .remove = __devexit_p(p9100_remove),
+};
- unregister_framebuffer(&all->info);
- fb_dealloc_cmap(&all->info.cmap);
- kfree(all);
- }
+static int __init p9100_init(void)
+{
+ if (fb_get_options("p9100fb", NULL))
+ return -ENODEV;
+
+ return of_register_driver(&p9100_driver, &of_bus_type);
}
-int __init
-p9100_setup(char *arg)
+static void __exit p9100_exit(void)
{
- /* No cmdline options yet... */
- return 0;
+ of_unregister_driver(&p9100_driver);
}
module_init(p9100_init);
-
-#ifdef MODULE
module_exit(p9100_exit);
-#endif
MODULE_DESCRIPTION("framebuffer driver for P9100 chipsets");
-MODULE_AUTHOR("David S. Miller <davem@redhat.com>");
+MODULE_AUTHOR("David S. Miller <davem@davemloft.net>");
+MODULE_VERSION("2.0");
MODULE_LICENSE("GPL");
git://git.onelab.eu / linux-2.6.git / blobdiff