/* leo.c: LEO frame buffer driver
*
- * Copyright (C) 2003 David S. Miller (davem@redhat.com)
+ * Copyright (C) 2003, 2006 David S. Miller (davem@davemloft.net)
* Copyright (C) 1996-1999 Jakub Jelinek (jj@ultra.linux.cz)
* Copyright (C) 1997 Michal Rehacek (Michal.Rehacek@st.mff.cuni.cz)
*
#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/string.h>
-#include <linux/slab.h>
#include <linux/delay.h>
#include <linux/init.h>
#include <linux/fb.h>
#include <linux/mm.h>
+#include <linux/of_device.h>
+#include <linux/io.h>
-#include <asm/io.h>
-#include <asm/sbus.h>
-#include <asm/oplib.h>
#include <asm/fbio.h>
#include "sbuslib.h"
#define LEO_CUR_TYPE_CMAP 0x00000050
struct leo_cursor {
- u8 xxx0[16];
- volatile u32 cur_type;
- volatile u32 cur_misc;
- volatile u32 cur_cursxy;
- volatile u32 cur_data;
+ u8 xxx0[16];
+ u32 cur_type;
+ u32 cur_misc;
+ u32 cur_cursxy;
+ u32 cur_data;
};
#define LEO_KRN_TYPE_CLUT0 0x00001000
#define LEO_KRN_CSR_UNK2 0x00000001
struct leo_lx_krn {
- volatile u32 krn_type;
- volatile u32 krn_csr;
- volatile u32 krn_value;
+ u32 krn_type;
+ u32 krn_csr;
+ u32 krn_value;
};
struct leo_lc_ss0_krn {
- volatile u32 misc;
- u8 xxx0[0x800-4];
- volatile u32 rev;
+ u32 misc;
+ u8 xxx0[0x800-4];
+ u32 rev;
};
struct leo_lc_ss0_usr {
- volatile u32 csr;
- volatile u32 addrspace;
- volatile u32 fontmsk;
- volatile u32 fontt;
- volatile u32 extent;
- volatile u32 src;
- u32 dst;
- volatile u32 copy;
- volatile u32 fill;
+ u32 csr;
+ u32 addrspace;
+ u32 fontmsk;
+ u32 fontt;
+ u32 extent;
+ u32 src;
+ u32 dst;
+ u32 copy;
+ u32 fill;
};
struct leo_lc_ss1_krn {
u8 unknown;
};
-struct leo_ld {
- u8 xxx0[0xe00];
- volatile u32 csr;
- volatile u32 wid;
- volatile u32 wmask;
- volatile u32 widclip;
- volatile u32 vclipmin;
- volatile u32 vclipmax;
- volatile u32 pickmin; /* SS1 only */
- volatile u32 pickmax; /* SS1 only */
- volatile u32 fg;
- volatile u32 bg;
- volatile u32 src; /* Copy/Scroll (SS0 only) */
- volatile u32 dst; /* Copy/Scroll/Fill (SS0 only) */
- volatile u32 extent; /* Copy/Scroll/Fill size (SS0 only) */
- u32 xxx1[3];
- volatile u32 setsem; /* SS1 only */
- volatile u32 clrsem; /* SS1 only */
- volatile u32 clrpick; /* SS1 only */
- volatile u32 clrdat; /* SS1 only */
- volatile u32 alpha; /* SS1 only */
- u8 xxx2[0x2c];
- volatile u32 winbg;
- volatile u32 planemask;
- volatile u32 rop;
- volatile u32 z;
- volatile u32 dczf; /* SS1 only */
- volatile u32 dczb; /* SS1 only */
- volatile u32 dcs; /* SS1 only */
- volatile u32 dczs; /* SS1 only */
- volatile u32 pickfb; /* SS1 only */
- volatile u32 pickbb; /* SS1 only */
- volatile u32 dcfc; /* SS1 only */
- volatile u32 forcecol; /* SS1 only */
- volatile u32 door[8]; /* SS1 only */
- volatile u32 pick[5]; /* SS1 only */
+struct leo_ld_ss0 {
+ u8 xxx0[0xe00];
+ u32 csr;
+ u32 wid;
+ u32 wmask;
+ u32 widclip;
+ u32 vclipmin;
+ u32 vclipmax;
+ u32 pickmin; /* SS1 only */
+ u32 pickmax; /* SS1 only */
+ u32 fg;
+ u32 bg;
+ u32 src; /* Copy/Scroll (SS0 only) */
+ u32 dst; /* Copy/Scroll/Fill (SS0 only) */
+ u32 extent; /* Copy/Scroll/Fill size (SS0 only) */
+ u32 xxx1[3];
+ u32 setsem; /* SS1 only */
+ u32 clrsem; /* SS1 only */
+ u32 clrpick; /* SS1 only */
+ u32 clrdat; /* SS1 only */
+ u32 alpha; /* SS1 only */
+ u8 xxx2[0x2c];
+ u32 winbg;
+ u32 planemask;
+ u32 rop;
+ u32 z;
+ u32 dczf; /* SS1 only */
+ u32 dczb; /* SS1 only */
+ u32 dcs; /* SS1 only */
+ u32 dczs; /* SS1 only */
+ u32 pickfb; /* SS1 only */
+ u32 pickbb; /* SS1 only */
+ u32 dcfc; /* SS1 only */
+ u32 forcecol; /* SS1 only */
+ u32 door[8]; /* SS1 only */
+ u32 pick[5]; /* SS1 only */
};
#define LEO_SS1_MISC_ENABLE 0x00000001
#define LEO_SS1_MISC_STEREO 0x00000002
struct leo_ld_ss1 {
- u8 xxx0[0xef4];
- volatile u32 ss1_misc;
+ u8 xxx0[0xef4];
+ u32 ss1_misc;
};
struct leo_ld_gbl {
u32 flags;
#define LEO_FLAG_BLANKED 0x00000001
- unsigned long physbase;
- unsigned long fbsize;
-
- struct sbus_dev *sdev;
+ unsigned long which_io;
};
static void leo_wait(struct leo_lx_krn __iomem *lx_krn)
{
int i;
-
+
for (i = 0;
- (sbus_readl(&lx_krn->krn_csr) & LEO_KRN_CSR_PROGRESS) && i < 300000;
+ (sbus_readl(&lx_krn->krn_csr) & LEO_KRN_CSR_PROGRESS) &&
+ i < 300000;
i++)
- udelay (1); /* Busy wait at most 0.3 sec */
+ udelay(1); /* Busy wait at most 0.3 sec */
return;
}
+static void leo_switch_from_graph(struct fb_info *info)
+{
+ struct leo_par *par = (struct leo_par *) info->par;
+ struct leo_ld_ss0 __iomem *ss = par->ld_ss0;
+ struct leo_cursor __iomem *cursor = par->cursor;
+ unsigned long flags;
+ u32 val;
+
+ spin_lock_irqsave(&par->lock, flags);
+
+ par->extent = ((info->var.xres - 1) |
+ ((info->var.yres - 1) << 16));
+
+ sbus_writel(0xffffffff, &ss->wid);
+ sbus_writel(0xffff, &ss->wmask);
+ sbus_writel(0, &ss->vclipmin);
+ sbus_writel(par->extent, &ss->vclipmax);
+ sbus_writel(0, &ss->fg);
+ sbus_writel(0xff000000, &ss->planemask);
+ sbus_writel(0x310850, &ss->rop);
+ sbus_writel(0, &ss->widclip);
+ sbus_writel((info->var.xres-1) | ((info->var.yres-1) << 11),
+ &par->lc_ss0_usr->extent);
+ sbus_writel(4, &par->lc_ss0_usr->addrspace);
+ sbus_writel(0x80000000, &par->lc_ss0_usr->fill);
+ sbus_writel(0, &par->lc_ss0_usr->fontt);
+ do {
+ val = sbus_readl(&par->lc_ss0_usr->csr);
+ } while (val & 0x20000000);
+
+ /* setup screen buffer for cfb_* functions */
+ sbus_writel(1, &ss->wid);
+ sbus_writel(0x00ffffff, &ss->planemask);
+ sbus_writel(0x310b90, &ss->rop);
+ sbus_writel(0, &par->lc_ss0_usr->addrspace);
+
+ /* hide cursor */
+ sbus_writel(sbus_readl(&cursor->cur_misc) & ~LEO_CUR_ENABLE, &cursor->cur_misc);
+
+ spin_unlock_irqrestore(&par->lock, flags);
+}
+
+static int leo_pan_display(struct fb_var_screeninfo *var, struct fb_info *info)
+{
+ /* We just use this to catch switches out of
+ * graphics mode.
+ */
+ leo_switch_from_graph(info);
+
+ if (var->xoffset || var->yoffset || var->vmode)
+ return -EINVAL;
+ return 0;
+}
+
/**
* leo_setcolreg - Optional function. Sets a color register.
* @regno: boolean, 0 copy local, 1 get_user() function
unsigned transp, struct fb_info *info)
{
struct leo_par *par = (struct leo_par *) info->par;
- struct leo_lx_krn __iomem *lx_krn = par->lx_krn;
+ struct leo_lx_krn __iomem *lx_krn = par->lx_krn;
unsigned long flags;
u32 val;
int i;
struct leo_par *par = (struct leo_par *)info->par;
return sbusfb_mmap_helper(leo_mmap_map,
- par->physbase, par->fbsize,
- par->sdev->reg_addrs[0].which_io,
- vma);
+ info->fix.smem_start, info->fix.smem_len,
+ par->which_io, vma);
}
static int leo_ioctl(struct fb_info *info, unsigned int cmd, unsigned long arg)
{
- struct leo_par *par = (struct leo_par *) info->par;
-
return sbusfb_ioctl_helper(cmd, arg, info,
- FBTYPE_SUNLEO, 32, par->fbsize);
+ FBTYPE_SUNLEO, 32, info->fix.smem_len);
}
/*
*/
static void
-leo_init_fix(struct fb_info *info)
+leo_init_fix(struct fb_info *info, struct device_node *dp)
{
- struct leo_par *par = (struct leo_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_TRUECOLOR;
leo_wait(lx_krn);
for (i = 0, wi = wl->wl_list; i < wl->wl_count; i++, wi++) {
- switch(wi->wi_type) {
+ switch (wi->wi_type) {
case FB_WID_DBL_8:
j = (wi->wi_index & 0xf) + 0x40;
break;
wi.wi_index = 1;
wi.wi_values [0] = 0x30;
leo_wid_put(info, &wl);
-
-}
-
-static void leo_switch_from_graph(struct fb_info *info)
-{
- struct leo_par *par = (struct leo_par *) info->par;
- struct leo_ld __iomem *ss = (struct leo_ld __iomem *) par->ld_ss0;
- unsigned long flags;
- u32 val;
-
- spin_lock_irqsave(&par->lock, flags);
-
- par->extent = ((info->var.xres - 1) |
- ((info->var.yres - 1) << 16));
-
- sbus_writel(0xffffffff, &ss->wid);
- sbus_writel(0xffff, &ss->wmask);
- sbus_writel(0, &ss->vclipmin);
- sbus_writel(par->extent, &ss->vclipmax);
- sbus_writel(0, &ss->fg);
- sbus_writel(0xff000000, &ss->planemask);
- sbus_writel(0x310850, &ss->rop);
- sbus_writel(0, &ss->widclip);
- sbus_writel((info->var.xres-1) | ((info->var.yres-1) << 11),
- &par->lc_ss0_usr->extent);
- sbus_writel(4, &par->lc_ss0_usr->addrspace);
- sbus_writel(0x80000000, &par->lc_ss0_usr->fill);
- sbus_writel(0, &par->lc_ss0_usr->fontt);
- do {
- val = sbus_readl(&par->lc_ss0_usr->csr);
- } while (val & 0x20000000);
-
- spin_unlock_irqrestore(&par->lock, flags);
-}
-
-static int leo_pan_display(struct fb_var_screeninfo *var, struct fb_info *info)
-{
- /* We just use this to catch switches out of
- * graphics mode.
- */
- leo_switch_from_graph(info);
-
- if (var->xoffset || var->yoffset || var->vmode)
- return -EINVAL;
- return 0;
}
static void leo_init_hw(struct fb_info *info)
var->transp.length = 0;
}
-struct all_info {
- struct fb_info info;
- struct leo_par par;
- struct list_head list;
-};
-static LIST_HEAD(leo_list);
-
-static void leo_init_one(struct sbus_dev *sdev)
+static void leo_unmap_regs(struct of_device *op, struct fb_info *info,
+ struct leo_par *par)
{
- struct all_info *all;
- int linebytes;
+ if (par->lc_ss0_usr)
+ of_iounmap(&op->resource[0], par->lc_ss0_usr, 0x1000);
+ if (par->ld_ss0)
+ of_iounmap(&op->resource[0], par->ld_ss0, 0x1000);
+ if (par->ld_ss1)
+ of_iounmap(&op->resource[0], par->ld_ss1, 0x1000);
+ if (par->lx_krn)
+ of_iounmap(&op->resource[0], par->lx_krn, 0x1000);
+ if (par->cursor)
+ of_iounmap(&op->resource[0],
+ par->cursor, sizeof(struct leo_cursor));
+ if (info->screen_base)
+ of_iounmap(&op->resource[0], info->screen_base, 0x800000);
+}
- all = kmalloc(sizeof(*all), GFP_KERNEL);
- if (!all) {
- printk(KERN_ERR "leo: Cannot allocate memory.\n");
- return;
- }
- memset(all, 0, sizeof(*all));
+static int __devinit leo_probe(struct of_device *op,
+ const struct of_device_id *match)
+{
+ struct device_node *dp = op->node;
+ struct fb_info *info;
+ struct leo_par *par;
+ int linebytes, err;
+
+ info = framebuffer_alloc(sizeof(struct leo_par), &op->dev);
+
+ err = -ENOMEM;
+ if (!info)
+ goto out_err;
+ par = info->par;
+
+ spin_lock_init(&par->lock);
+
+ info->fix.smem_start = op->resource[0].start;
+ par->which_io = op->resource[0].flags & IORESOURCE_BITS;
+
+ sbusfb_fill_var(&info->var, dp, 32);
+ leo_fixup_var_rgb(&info->var);
+
+ linebytes = of_getintprop_default(dp, "linebytes",
+ info->var.xres);
+ info->fix.smem_len = PAGE_ALIGN(linebytes * info->var.yres);
+
+ par->lc_ss0_usr =
+ of_ioremap(&op->resource[0], LEO_OFF_LC_SS0_USR,
+ 0x1000, "leolc ss0usr");
+ par->ld_ss0 =
+ of_ioremap(&op->resource[0], LEO_OFF_LD_SS0,
+ 0x1000, "leold ss0");
+ par->ld_ss1 =
+ of_ioremap(&op->resource[0], LEO_OFF_LD_SS1,
+ 0x1000, "leold ss1");
+ par->lx_krn =
+ of_ioremap(&op->resource[0], LEO_OFF_LX_KRN,
+ 0x1000, "leolx krn");
+ par->cursor =
+ of_ioremap(&op->resource[0], LEO_OFF_LX_CURSOR,
+ sizeof(struct leo_cursor), "leolx cursor");
+ info->screen_base =
+ of_ioremap(&op->resource[0], LEO_OFF_SS0,
+ 0x800000, "leo ram");
+ if (!par->lc_ss0_usr ||
+ !par->ld_ss0 ||
+ !par->ld_ss1 ||
+ !par->lx_krn ||
+ !par->cursor ||
+ !info->screen_base)
+ goto out_unmap_regs;
+
+ info->flags = FBINFO_DEFAULT;
+ info->fbops = &leo_ops;
+ info->pseudo_palette = par->clut_data;
+
+ leo_init_wids(info);
+ leo_init_hw(info);
+
+ leo_blank(FB_BLANK_UNBLANK, info);
+
+ if (fb_alloc_cmap(&info->cmap, 256, 0))
+ goto out_unmap_regs;
+
+ leo_init_fix(info, dp);
+
+ err = register_framebuffer(info);
+ if (err < 0)
+ goto out_dealloc_cmap;
+
+ dev_set_drvdata(&op->dev, info);
+
+ printk(KERN_INFO "%s: leo at %lx:%lx\n",
+ dp->full_name,
+ par->which_io, info->fix.smem_start);
- INIT_LIST_HEAD(&all->list);
+ return 0;
- spin_lock_init(&all->par.lock);
- all->par.sdev = sdev;
+out_dealloc_cmap:
+ fb_dealloc_cmap(&info->cmap);
- all->par.physbase = sdev->reg_addrs[0].phys_addr;
+out_unmap_regs:
+ leo_unmap_regs(op, info, par);
+ framebuffer_release(info);
- sbusfb_fill_var(&all->info.var, sdev->prom_node, 32);
- leo_fixup_var_rgb(&all->info.var);
+out_err:
+ return err;
+}
- linebytes = prom_getintdefault(sdev->prom_node, "linebytes",
- all->info.var.xres);
- all->par.fbsize = PAGE_ALIGN(linebytes * all->info.var.yres);
+static int __devexit leo_remove(struct of_device *op)
+{
+ struct fb_info *info = dev_get_drvdata(&op->dev);
+ struct leo_par *par = info->par;
-#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[0], LEO_OFF_SS0,
- 0x800000, "leo ram");
-
- all->par.lc_ss0_usr =
- sbus_ioremap(&sdev->resource[0], LEO_OFF_LC_SS0_USR,
- 0x1000, "leolc ss0usr");
- all->par.ld_ss0 =
- sbus_ioremap(&sdev->resource[0], LEO_OFF_LD_SS0,
- 0x1000, "leold ss0");
- all->par.ld_ss1 =
- sbus_ioremap(&sdev->resource[0], LEO_OFF_LD_SS1,
- 0x1000, "leold ss1");
- all->par.lx_krn =
- sbus_ioremap(&sdev->resource[0], LEO_OFF_LX_KRN,
- 0x1000, "leolx krn");
- all->par.cursor =
- sbus_ioremap(&sdev->resource[0], LEO_OFF_LX_CURSOR,
- sizeof(struct leo_cursor), "leolx cursor");
-
- all->info.flags = FBINFO_DEFAULT | FBINFO_HWACCEL_YPAN;
- all->info.fbops = &leo_ops;
- all->info.par = &all->par;
-
- leo_init_wids(&all->info);
- leo_init_hw(&all->info);
-
- leo_blank(0, &all->info);
-
- if (fb_alloc_cmap(&all->info.cmap, 256, 0)) {
- printk(KERN_ERR "leo: Could not allocate color map.\n");
- kfree(all);
- return;
- }
+ unregister_framebuffer(info);
+ fb_dealloc_cmap(&info->cmap);
- leo_init_fix(&all->info);
+ leo_unmap_regs(op, info, par);
- if (register_framebuffer(&all->info) < 0) {
- printk(KERN_ERR "leo: Could not register framebuffer.\n");
- fb_dealloc_cmap(&all->info.cmap);
- kfree(all);
- return;
- }
+ framebuffer_release(info);
- list_add(&all->list, &leo_list);
+ dev_set_drvdata(&op->dev, NULL);
- printk("leo: %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 leo_init(void)
-{
- struct sbus_bus *sbus;
- struct sbus_dev *sdev;
-
- if (fb_get_options("leofb", NULL))
- return -ENODEV;
-
- for_all_sbusdev(sdev, sbus) {
- if (!strcmp(sdev->prom_name, "leo"))
- leo_init_one(sdev);
- }
+static const struct of_device_id leo_match[] = {
+ {
+ .name = "SUNW,leo",
+ },
+ {},
+};
+MODULE_DEVICE_TABLE(of, leo_match);
- return 0;
-}
+static struct of_platform_driver leo_driver = {
+ .name = "leo",
+ .match_table = leo_match,
+ .probe = leo_probe,
+ .remove = __devexit_p(leo_remove),
+};
-void __exit leo_exit(void)
+static int __init leo_init(void)
{
- struct list_head *pos, *tmp;
-
- list_for_each_safe(pos, tmp, &leo_list) {
- struct all_info *all = list_entry(pos, typeof(*all), list);
+ if (fb_get_options("leofb", NULL))
+ return -ENODEV;
- unregister_framebuffer(&all->info);
- fb_dealloc_cmap(&all->info.cmap);
- kfree(all);
- }
+ return of_register_driver(&leo_driver, &of_bus_type);
}
-int __init
-leo_setup(char *arg)
+static void __exit leo_exit(void)
{
- /* No cmdline options yet... */
- return 0;
+ of_unregister_driver(&leo_driver);
}
module_init(leo_init);
-#ifdef MODULE
module_exit(leo_exit);
-#endif
MODULE_DESCRIPTION("framebuffer driver for LEO 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://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff