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-rw-r--r--drivers/video/cg6.c337
1 files changed, 183 insertions, 154 deletions
diff --git a/drivers/video/cg6.c b/drivers/video/cg6.c
index 7aab91ead681..64146be2eeb0 100644
--- a/drivers/video/cg6.c
+++ b/drivers/video/cg6.c
@@ -1,6 +1,6 @@
/* cg6.c: CGSIX (GX, GXplus, TGX) 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) 1996 Eddie C. Dost (ecd@skynet.be)
@@ -19,8 +19,8 @@
#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"
@@ -164,89 +164,89 @@ static struct fb_ops cg6_ops = {
/* The contents are unknown */
struct cg6_tec {
- volatile int tec_matrix;
- volatile int tec_clip;
- volatile int tec_vdc;
+ int tec_matrix;
+ int tec_clip;
+ int tec_vdc;
};
struct cg6_thc {
- uint thc_pad0[512];
- volatile uint thc_hs; /* hsync timing */
- volatile uint thc_hsdvs;
- volatile uint thc_hd;
- volatile uint thc_vs; /* vsync timing */
- volatile uint thc_vd;
- volatile uint thc_refresh;
- volatile uint thc_misc;
- uint thc_pad1[56];
- volatile uint thc_cursxy; /* cursor x,y position (16 bits each) */
- volatile uint thc_cursmask[32]; /* cursor mask bits */
- volatile uint thc_cursbits[32]; /* what to show where mask enabled */
+ u32 thc_pad0[512];
+ u32 thc_hs; /* hsync timing */
+ u32 thc_hsdvs;
+ u32 thc_hd;
+ u32 thc_vs; /* vsync timing */
+ u32 thc_vd;
+ u32 thc_refresh;
+ u32 thc_misc;
+ u32 thc_pad1[56];
+ u32 thc_cursxy; /* cursor x,y position (16 bits each) */
+ u32 thc_cursmask[32]; /* cursor mask bits */
+ u32 thc_cursbits[32]; /* what to show where mask enabled */
};
struct cg6_fbc {
- u32 xxx0[1];
- volatile u32 mode;
- volatile u32 clip;
- u32 xxx1[1];
- volatile u32 s;
- volatile u32 draw;
- volatile u32 blit;
- volatile u32 font;
- u32 xxx2[24];
- volatile u32 x0, y0, z0, color0;
- volatile u32 x1, y1, z1, color1;
- volatile u32 x2, y2, z2, color2;
- volatile u32 x3, y3, z3, color3;
- volatile u32 offx, offy;
- u32 xxx3[2];
- volatile u32 incx, incy;
- u32 xxx4[2];
- volatile u32 clipminx, clipminy;
- u32 xxx5[2];
- volatile u32 clipmaxx, clipmaxy;
- u32 xxx6[2];
- volatile u32 fg;
- volatile u32 bg;
- volatile u32 alu;
- volatile u32 pm;
- volatile u32 pixelm;
- u32 xxx7[2];
- volatile u32 patalign;
- volatile u32 pattern[8];
- u32 xxx8[432];
- volatile u32 apointx, apointy, apointz;
- u32 xxx9[1];
- volatile u32 rpointx, rpointy, rpointz;
- u32 xxx10[5];
- volatile u32 pointr, pointg, pointb, pointa;
- volatile u32 alinex, aliney, alinez;
- u32 xxx11[1];
- volatile u32 rlinex, rliney, rlinez;
- u32 xxx12[5];
- volatile u32 liner, lineg, lineb, linea;
- volatile u32 atrix, atriy, atriz;
- u32 xxx13[1];
- volatile u32 rtrix, rtriy, rtriz;
- u32 xxx14[5];
- volatile u32 trir, trig, trib, tria;
- volatile u32 aquadx, aquady, aquadz;
- u32 xxx15[1];
- volatile u32 rquadx, rquady, rquadz;
- u32 xxx16[5];
- volatile u32 quadr, quadg, quadb, quada;
- volatile u32 arectx, arecty, arectz;
- u32 xxx17[1];
- volatile u32 rrectx, rrecty, rrectz;
- u32 xxx18[5];
- volatile u32 rectr, rectg, rectb, recta;
+ u32 xxx0[1];
+ u32 mode;
+ u32 clip;
+ u32 xxx1[1];
+ u32 s;
+ u32 draw;
+ u32 blit;
+ u32 font;
+ u32 xxx2[24];
+ u32 x0, y0, z0, color0;
+ u32 x1, y1, z1, color1;
+ u32 x2, y2, z2, color2;
+ u32 x3, y3, z3, color3;
+ u32 offx, offy;
+ u32 xxx3[2];
+ u32 incx, incy;
+ u32 xxx4[2];
+ u32 clipminx, clipminy;
+ u32 xxx5[2];
+ u32 clipmaxx, clipmaxy;
+ u32 xxx6[2];
+ u32 fg;
+ u32 bg;
+ u32 alu;
+ u32 pm;
+ u32 pixelm;
+ u32 xxx7[2];
+ u32 patalign;
+ u32 pattern[8];
+ u32 xxx8[432];
+ u32 apointx, apointy, apointz;
+ u32 xxx9[1];
+ u32 rpointx, rpointy, rpointz;
+ u32 xxx10[5];
+ u32 pointr, pointg, pointb, pointa;
+ u32 alinex, aliney, alinez;
+ u32 xxx11[1];
+ u32 rlinex, rliney, rlinez;
+ u32 xxx12[5];
+ u32 liner, lineg, lineb, linea;
+ u32 atrix, atriy, atriz;
+ u32 xxx13[1];
+ u32 rtrix, rtriy, rtriz;
+ u32 xxx14[5];
+ u32 trir, trig, trib, tria;
+ u32 aquadx, aquady, aquadz;
+ u32 xxx15[1];
+ u32 rquadx, rquady, rquadz;
+ u32 xxx16[5];
+ u32 quadr, quadg, quadb, quada;
+ u32 arectx, arecty, arectz;
+ u32 xxx17[1];
+ u32 rrectx, rrecty, rrectz;
+ u32 xxx18[5];
+ u32 rectr, rectg, rectb, recta;
};
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 cg6_par {
@@ -255,15 +255,14 @@ struct cg6_par {
struct cg6_fbc __iomem *fbc;
struct cg6_thc __iomem *thc;
struct cg6_tec __iomem *tec;
- volatile u32 __iomem *fhc;
+ u32 __iomem *fhc;
u32 flags;
#define CG6_FLAG_BLANKED 0x00000001
unsigned long physbase;
+ unsigned long which_io;
unsigned long fbsize;
-
- struct sbus_dev *sdev;
};
static int cg6_sync(struct fb_info *info)
@@ -529,8 +528,7 @@ static int cg6_mmap(struct fb_info *info, struct vm_area_struct *vma)
return sbusfb_mmap_helper(cg6_mmap_map,
par->physbase, par->fbsize,
- par->sdev->reg_addrs[0].which_io,
- vma);
+ par->which_io, vma);
}
static int cg6_ioctl(struct fb_info *info, unsigned int cmd, unsigned long arg)
@@ -658,62 +656,75 @@ static void cg6_chip_init(struct fb_info *info)
struct all_info {
struct fb_info info;
struct cg6_par par;
- struct list_head list;
};
-static LIST_HEAD(cg6_list);
-static void cg6_init_one(struct sbus_dev *sdev)
+static void cg6_unmap_regs(struct all_info *all)
{
- struct all_info *all;
- int linebytes;
+ if (all->par.fbc)
+ of_iounmap(all->par.fbc, 4096);
+ if (all->par.tec)
+ of_iounmap(all->par.tec, sizeof(struct cg6_tec));
+ if (all->par.thc)
+ of_iounmap(all->par.thc, sizeof(struct cg6_thc));
+ if (all->par.bt)
+ of_iounmap(all->par.bt, sizeof(struct bt_regs));
+ if (all->par.fhc)
+ of_iounmap(all->par.fhc, sizeof(u32));
+
+ if (all->info.screen_base)
+ of_iounmap(all->info.screen_base, all->par.fbsize);
+}
- all = kmalloc(sizeof(*all), GFP_KERNEL);
- if (!all) {
- printk(KERN_ERR "cg6: Cannot allocate memory.\n");
- return;
- }
- memset(all, 0, sizeof(*all));
+static int __devinit cg6_init_one(struct of_device *op)
+{
+ struct device_node *dp = op->node;
+ struct all_info *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;
- all->par.physbase = sdev->reg_addrs[0].phys_addr;
+ all->par.physbase = op->resource[0].start;
+ all->par.which_io = op->resource[0].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);
- if (prom_getbool(sdev->prom_node, "dblbuf"))
+ if (of_find_property(dp, "dblbuf", NULL))
all->par.fbsize *= 4;
- all->par.fbc = sbus_ioremap(&sdev->resource[0], CG6_FBC_OFFSET,
- 4096, "cgsix fbc");
- all->par.tec = sbus_ioremap(&sdev->resource[0], CG6_TEC_OFFSET,
- sizeof(struct cg6_tec), "cgsix tec");
- all->par.thc = sbus_ioremap(&sdev->resource[0], CG6_THC_OFFSET,
- sizeof(struct cg6_thc), "cgsix thc");
- all->par.bt = sbus_ioremap(&sdev->resource[0], CG6_BROOKTREE_OFFSET,
- sizeof(struct bt_regs), "cgsix dac");
- all->par.fhc = sbus_ioremap(&sdev->resource[0], CG6_FHC_OFFSET,
- sizeof(u32), "cgsix fhc");
+ all->par.fbc = of_ioremap(&op->resource[0], CG6_FBC_OFFSET,
+ 4096, "cgsix fbc");
+ all->par.tec = of_ioremap(&op->resource[0], CG6_TEC_OFFSET,
+ sizeof(struct cg6_tec), "cgsix tec");
+ all->par.thc = of_ioremap(&op->resource[0], CG6_THC_OFFSET,
+ sizeof(struct cg6_thc), "cgsix thc");
+ all->par.bt = of_ioremap(&op->resource[0], CG6_BROOKTREE_OFFSET,
+ sizeof(struct bt_regs), "cgsix dac");
+ all->par.fhc = of_ioremap(&op->resource[0], CG6_FHC_OFFSET,
+ sizeof(u32), "cgsix fhc");
all->info.flags = FBINFO_DEFAULT | FBINFO_HWACCEL_IMAGEBLIT |
FBINFO_HWACCEL_COPYAREA | FBINFO_HWACCEL_FILLRECT;
all->info.fbops = &cg6_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[0], CG6_RAM_OFFSET,
- all->par.fbsize, "cgsix ram");
+
+ all->info.screen_base = of_ioremap(&op->resource[0], CG6_RAM_OFFSET,
+ all->par.fbsize, "cgsix ram");
+ if (!all->par.fbc || !all->par.tec || !all->par.thc ||
+ !all->par.bt || !all->par.fhc || !all->info.screen_base) {
+ cg6_unmap_regs(all);
+ kfree(all);
+ return -ENOMEM;
+ }
+
all->info.par = &all->par;
all->info.var.accel_flags = FB_ACCELF_TEXT;
@@ -723,72 +734,90 @@ static void cg6_init_one(struct sbus_dev *sdev)
cg6_blank(0, &all->info);
if (fb_alloc_cmap(&all->info.cmap, 256, 0)) {
- printk(KERN_ERR "cg6: Could not allocate color map.\n");
+ cg6_unmap_regs(all);
kfree(all);
- return;
+ return -ENOMEM;
}
fb_set_cmap(&all->info.cmap, &all->info);
cg6_init_fix(&all->info, linebytes);
- if (register_framebuffer(&all->info) < 0) {
- printk(KERN_ERR "cg6: Could not register framebuffer.\n");
+ err = register_framebuffer(&all->info);
+ if (err < 0) {
+ cg6_unmap_regs(all);
fb_dealloc_cmap(&all->info.cmap);
kfree(all);
- return;
+ return err;
}
- list_add(&all->list, &cg6_list);
+ dev_set_drvdata(&op->dev, all);
- printk("cg6: CGsix [%s] at %lx:%lx\n",
+ printk("%s: CGsix [%s] at %lx:%lx\n",
+ dp->full_name,
all->info.fix.id,
- (long) sdev->reg_addrs[0].which_io,
- (long) sdev->reg_addrs[0].phys_addr);
+ all->par.which_io, all->par.physbase);
+
+ return 0;
}
-int __init cg6_init(void)
+static int __devinit cg6_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("cg6fb", NULL))
- return -ENODEV;
+ return cg6_init_one(op);
+}
- for_all_sbusdev(sdev, sbus) {
- if (!strcmp(sdev->prom_name, "cgsix") ||
- !strcmp(sdev->prom_name, "cgthree+"))
- cg6_init_one(sdev);
- }
+static int __devexit cg6_remove(struct of_device *dev)
+{
+ struct all_info *all = dev_get_drvdata(&dev->dev);
+
+ unregister_framebuffer(&all->info);
+ fb_dealloc_cmap(&all->info.cmap);
+
+ cg6_unmap_regs(all);
+
+ kfree(all);
+
+ dev_set_drvdata(&dev->dev, NULL);
return 0;
}
-void __exit cg6_exit(void)
-{
- struct list_head *pos, *tmp;
+static struct of_device_id cg6_match[] = {
+ {
+ .name = "cgsix",
+ },
+ {
+ .name = "cgthree+",
+ },
+ {},
+};
+MODULE_DEVICE_TABLE(of, cg6_match);
- list_for_each_safe(pos, tmp, &cg6_list) {
- struct all_info *all = list_entry(pos, typeof(*all), list);
+static struct of_platform_driver cg6_driver = {
+ .name = "cg6",
+ .match_table = cg6_match,
+ .probe = cg6_probe,
+ .remove = __devexit_p(cg6_remove),
+};
- unregister_framebuffer(&all->info);
- fb_dealloc_cmap(&all->info.cmap);
- kfree(all);
- }
+static int __init cg6_init(void)
+{
+ if (fb_get_options("cg6fb", NULL))
+ return -ENODEV;
+
+ return of_register_driver(&cg6_driver, &of_bus_type);
}
-int __init
-cg6_setup(char *arg)
+static void __exit cg6_exit(void)
{
- /* No cmdline options yet... */
- return 0;
+ of_unregister_driver(&cg6_driver);
}
module_init(cg6_init);
-
-#ifdef MODULE
module_exit(cg6_exit);
-#endif
MODULE_DESCRIPTION("framebuffer driver for CGsix chipsets");
-MODULE_AUTHOR("David S. Miller <davem@redhat.com>");
+MODULE_AUTHOR("David S. Miller <davem@davemloft.net>");
+MODULE_VERSION("2.0");
MODULE_LICENSE("GPL");
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.