X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=drivers%2Fvideo%2Fcg14.c;h=7f926c619b61790558c53918df181477c565c3d9;hb=16c70f8c1b54b61c3b951b6fb220df250fe09b32;hp=63b6c79c8a0a98195c00a59cfed6387d57f61f15;hpb=4e76c8a9fa413ccc09d3f7f664183dcce3555d57;p=linux-2.6.git diff --git a/drivers/video/cg14.c b/drivers/video/cg14.c index 63b6c79c8..7f926c619 100644 --- a/drivers/video/cg14.c +++ b/drivers/video/cg14.c @@ -1,6 +1,6 @@ /* cg14.c: CGFOURTEEN 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) 1995 Miguel de Icaza (miguel@nuclecu.unam.mx) * @@ -18,8 +18,8 @@ #include #include -#include -#include +#include +#include #include #include "sbuslib.h" @@ -99,73 +99,73 @@ static struct fb_ops cg14_ops = { #define CG14_MCR_PIXMODE_32 3 struct cg14_regs{ - volatile u8 mcr; /* Master Control Reg */ - volatile u8 ppr; /* Packed Pixel Reg */ - volatile u8 tms[2]; /* Test Mode Status Regs */ - volatile u8 msr; /* Master Status Reg */ - volatile u8 fsr; /* Fault Status Reg */ - volatile u8 rev; /* Revision & Impl */ - volatile u8 ccr; /* Clock Control Reg */ - volatile u32 tmr; /* Test Mode Read Back */ - volatile u8 mod; /* Monitor Operation Data Reg */ - volatile u8 acr; /* Aux Control */ + u8 mcr; /* Master Control Reg */ + u8 ppr; /* Packed Pixel Reg */ + u8 tms[2]; /* Test Mode Status Regs */ + u8 msr; /* Master Status Reg */ + u8 fsr; /* Fault Status Reg */ + u8 rev; /* Revision & Impl */ + u8 ccr; /* Clock Control Reg */ + u32 tmr; /* Test Mode Read Back */ + u8 mod; /* Monitor Operation Data Reg */ + u8 acr; /* Aux Control */ u8 xxx0[6]; - volatile u16 hct; /* Hor Counter */ - volatile u16 vct; /* Vert Counter */ - volatile u16 hbs; /* Hor Blank Start */ - volatile u16 hbc; /* Hor Blank Clear */ - volatile u16 hss; /* Hor Sync Start */ - volatile u16 hsc; /* Hor Sync Clear */ - volatile u16 csc; /* Composite Sync Clear */ - volatile u16 vbs; /* Vert Blank Start */ - volatile u16 vbc; /* Vert Blank Clear */ - volatile u16 vss; /* Vert Sync Start */ - volatile u16 vsc; /* Vert Sync Clear */ - volatile u16 xcs; - volatile u16 xcc; - volatile u16 fsa; /* Fault Status Address */ - volatile u16 adr; /* Address Registers */ + u16 hct; /* Hor Counter */ + u16 vct; /* Vert Counter */ + u16 hbs; /* Hor Blank Start */ + u16 hbc; /* Hor Blank Clear */ + u16 hss; /* Hor Sync Start */ + u16 hsc; /* Hor Sync Clear */ + u16 csc; /* Composite Sync Clear */ + u16 vbs; /* Vert Blank Start */ + u16 vbc; /* Vert Blank Clear */ + u16 vss; /* Vert Sync Start */ + u16 vsc; /* Vert Sync Clear */ + u16 xcs; + u16 xcc; + u16 fsa; /* Fault Status Address */ + u16 adr; /* Address Registers */ u8 xxx1[0xce]; - volatile u8 pcg[0x100]; /* Pixel Clock Generator */ - volatile u32 vbr; /* Frame Base Row */ - volatile u32 vmcr; /* VBC Master Control */ - volatile u32 vcr; /* VBC refresh */ - volatile u32 vca; /* VBC Config */ + u8 pcg[0x100]; /* Pixel Clock Generator */ + u32 vbr; /* Frame Base Row */ + u32 vmcr; /* VBC Master Control */ + u32 vcr; /* VBC refresh */ + u32 vca; /* VBC Config */ }; #define CG14_CCR_ENABLE 0x04 #define CG14_CCR_SELECT 0x02 /* HW/Full screen */ struct cg14_cursor { - volatile u32 cpl0[32]; /* Enable plane 0 */ - volatile u32 cpl1[32]; /* Color selection plane */ - volatile u8 ccr; /* Cursor Control Reg */ + u32 cpl0[32]; /* Enable plane 0 */ + u32 cpl1[32]; /* Color selection plane */ + u8 ccr; /* Cursor Control Reg */ u8 xxx0[3]; - volatile u16 cursx; /* Cursor x,y position */ - volatile u16 cursy; /* Cursor x,y position */ - volatile u32 color0; - volatile u32 color1; + u16 cursx; /* Cursor x,y position */ + u16 cursy; /* Cursor x,y position */ + u32 color0; + u32 color1; u32 xxx1[0x1bc]; - volatile u32 cpl0i[32]; /* Enable plane 0 autoinc */ - volatile u32 cpl1i[32]; /* Color selection autoinc */ + u32 cpl0i[32]; /* Enable plane 0 autoinc */ + u32 cpl1i[32]; /* Color selection autoinc */ }; struct cg14_dac { - volatile u8 addr; /* Address Register */ + u8 addr; /* Address Register */ u8 xxx0[255]; - volatile u8 glut; /* Gamma table */ + u8 glut; /* Gamma table */ u8 xxx1[255]; - volatile u8 select; /* Register Select */ + u8 select; /* Register Select */ u8 xxx2[255]; - volatile u8 mode; /* Mode Register */ + u8 mode; /* Mode Register */ }; struct cg14_xlut{ - volatile u8 x_xlut [256]; - volatile u8 x_xlutd [256]; + u8 x_xlut [256]; + u8 x_xlutd [256]; u8 xxx0[0x600]; - volatile u8 x_xlut_inc [256]; - volatile u8 x_xlutd_inc [256]; + u8 x_xlut_inc [256]; + u8 x_xlutd_inc [256]; }; /* Color look up table (clut) */ @@ -204,7 +204,6 @@ struct cg14_par { int mode; int ramsize; - struct sbus_dev *sdev; }; static void __cg14_reset(struct cg14_par *par) @@ -355,14 +354,9 @@ static int cg14_ioctl(struct fb_info *info, unsigned int cmd, unsigned long arg) * Initialisation */ -static void cg14_init_fix(struct fb_info *info, int linebytes) +static void cg14_init_fix(struct fb_info *info, int linebytes, struct device_node *dp) { - struct cg14_par *par = (struct cg14_par *)info->par; - const char *name; - - name = "cgfourteen"; - if (par->sdev) - name = par->sdev->prom_name; + const char *name = dp->name; strlcpy(info->fix.id, name, sizeof(info->fix.id)); @@ -456,98 +450,81 @@ static struct sbus_mmap_map __cg14_mmap_map[CG14_MMAP_ENTRIES] __initdata = { struct all_info { struct fb_info info; struct cg14_par par; - struct list_head list; }; -static LIST_HEAD(cg14_list); -static void cg14_init_one(struct sbus_dev *sdev, int node, int parent_node) +static void cg14_unmap_regs(struct all_info *all) { - struct all_info *all; - unsigned long phys, rphys; - u32 bases[6]; - int is_8mb, linebytes, i; - - if (!sdev) { - if (prom_getproperty(node, "address", - (char *) &bases[0], sizeof(bases)) <= 0 - || !bases[0]) { - printk(KERN_ERR "cg14: Device is not mapped.\n"); - return; - } - if (__get_iospace(bases[0]) != __get_iospace(bases[1])) { - printk(KERN_ERR "cg14: I/O spaces don't match.\n"); - return; - } - } + if (all->par.regs) + of_iounmap(all->par.regs, sizeof(struct cg14_regs)); + if (all->par.clut) + of_iounmap(all->par.clut, sizeof(struct cg14_clut)); + if (all->par.cursor) + of_iounmap(all->par.cursor, sizeof(struct cg14_cursor)); + 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 "cg14: Cannot allocate memory.\n"); - return; - } - memset(all, 0, sizeof(*all)); +static int __devinit cg14_init_one(struct of_device *op) +{ + struct device_node *dp = op->node; + struct all_info *all; + int is_8mb, linebytes, i, err; - INIT_LIST_HEAD(&all->list); + all = kzalloc(sizeof(*all), GFP_KERNEL); + if (!all) + return -ENOMEM; spin_lock_init(&all->par.lock); - sbusfb_fill_var(&all->info.var, 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(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.sdev = sdev; - if (sdev) { - rphys = sdev->reg_addrs[0].phys_addr; - all->par.physbase = phys = sdev->reg_addrs[1].phys_addr; - all->par.iospace = sdev->reg_addrs[0].which_io; - - all->par.regs = sbus_ioremap(&sdev->resource[0], 0, - sizeof(struct cg14_regs), - "cg14 regs"); - all->par.clut = sbus_ioremap(&sdev->resource[0], CG14_CLUT1, - sizeof(struct cg14_clut), - "cg14 clut"); - all->par.cursor = sbus_ioremap(&sdev->resource[0], CG14_CURSORREGS, - sizeof(struct cg14_cursor), - "cg14 cursor"); - all->info.screen_base = sbus_ioremap(&sdev->resource[1], 0, - all->par.fbsize, "cg14 ram"); + if (!strcmp(dp->parent->name, "sbus") || + !strcmp(dp->parent->name, "sbi")) { + all->par.physbase = op->resource[0].start; + all->par.iospace = op->resource[0].flags & IORESOURCE_BITS; } else { - rphys = __get_phys(bases[0]); - all->par.physbase = phys = __get_phys(bases[1]); - all->par.iospace = __get_iospace(bases[0]); - all->par.regs = (struct cg14_regs __iomem *)(unsigned long)bases[0]; - all->par.clut = (struct cg14_clut __iomem *)((unsigned long)bases[0] + - CG14_CLUT1); - all->par.cursor = - (struct cg14_cursor __iomem *)((unsigned long)bases[0] + - CG14_CURSORREGS); - - all->info.screen_base = (char __iomem *)(unsigned long)bases[1]; + all->par.physbase = op->resource[1].start; + all->par.iospace = op->resource[0].flags & IORESOURCE_BITS; } - prom_getproperty(node, "reg", (char *) &bases[0], sizeof(bases)); - is_8mb = (bases[5] == 0x800000); + all->par.regs = of_ioremap(&op->resource[0], 0, + sizeof(struct cg14_regs), "cg14 regs"); + all->par.clut = of_ioremap(&op->resource[0], CG14_CLUT1, + sizeof(struct cg14_clut), "cg14 clut"); + all->par.cursor = of_ioremap(&op->resource[0], CG14_CURSORREGS, + sizeof(struct cg14_cursor), "cg14 cursor"); - if (sizeof(all->par.mmap_map) != sizeof(__cg14_mmap_map)) { - extern void __cg14_mmap_sized_wrongly(void); + all->info.screen_base = of_ioremap(&op->resource[1], 0, + all->par.fbsize, "cg14 ram"); - __cg14_mmap_sized_wrongly(); - } + if (!all->par.regs || !all->par.clut || !all->par.cursor || + !all->info.screen_base) + cg14_unmap_regs(all); + + is_8mb = (((op->resource[1].end - op->resource[1].start) + 1) == + (8 * 1024 * 1024)); + + BUILD_BUG_ON(sizeof(all->par.mmap_map) != sizeof(__cg14_mmap_map)); - memcpy(&all->par.mmap_map, &__cg14_mmap_map, sizeof(all->par.mmap_map)); + memcpy(&all->par.mmap_map, &__cg14_mmap_map, + sizeof(all->par.mmap_map)); + for (i = 0; i < CG14_MMAP_ENTRIES; i++) { struct sbus_mmap_map *map = &all->par.mmap_map[i]; if (!map->size) break; if (map->poff & 0x80000000) - map->poff = (map->poff & 0x7fffffff) + rphys - phys; + map->poff = (map->poff & 0x7fffffff) + + (op->resource[0].start - + op->resource[1].start); if (is_8mb && map->size >= 0x100000 && map->size <= 0x400000) @@ -564,84 +541,87 @@ static void cg14_init_one(struct sbus_dev *sdev, int node, int parent_node) __cg14_reset(&all->par); if (fb_alloc_cmap(&all->info.cmap, 256, 0)) { - printk(KERN_ERR "cg14: Could not allocate color map.\n"); + cg14_unmap_regs(all); kfree(all); - return; + return -ENOMEM; } fb_set_cmap(&all->info.cmap, &all->info); - cg14_init_fix(&all->info, linebytes); + cg14_init_fix(&all->info, linebytes, dp); - if (register_framebuffer(&all->info) < 0) { - printk(KERN_ERR "cg14: Could not register framebuffer.\n"); + err = register_framebuffer(&all->info); + if (err < 0) { fb_dealloc_cmap(&all->info.cmap); + cg14_unmap_regs(all); kfree(all); - return; + return err; } - list_add(&all->list, &cg14_list); + dev_set_drvdata(&op->dev, all); - printk("cg14: cgfourteen at %lx:%lx, %dMB\n", - all->par.iospace, all->par.physbase, all->par.ramsize >> 20); + printk("%s: cgfourteen at %lx:%lx, %dMB\n", + dp->full_name, + all->par.iospace, all->par.physbase, + all->par.ramsize >> 20); + return 0; } -int __init cg14_init(void) +static int __devinit cg14_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("cg14fb", NULL)) - return -ENODEV; + return cg14_init_one(op); +} -#ifdef CONFIG_SPARC32 - { - int root, node; - - root = prom_getchild(prom_root_node); - root = prom_searchsiblings(root, "obio"); - if (root) { - node = prom_searchsiblings(prom_getchild(root), - "cgfourteen"); - if (node) - cg14_init_one(NULL, node, root); - } - } -#endif - for_all_sbusdev(sdev, sbus) { - if (!strcmp(sdev->prom_name, "cgfourteen")) - cg14_init_one(sdev, sdev->prom_node, sbus->prom_node); - } +static int __devexit cg14_remove(struct of_device *dev) +{ + struct all_info *all = dev_get_drvdata(&dev->dev); + + unregister_framebuffer(&all->info); + fb_dealloc_cmap(&all->info.cmap); + + cg14_unmap_regs(all); + + kfree(all); + + dev_set_drvdata(&dev->dev, NULL); return 0; } -void __exit cg14_exit(void) -{ - struct list_head *pos, *tmp; +static struct of_device_id cg14_match[] = { + { + .name = "cgfourteen", + }, + {}, +}; +MODULE_DEVICE_TABLE(of, cg14_match); - list_for_each_safe(pos, tmp, &cg14_list) { - struct all_info *all = list_entry(pos, typeof(*all), list); +static struct of_platform_driver cg14_driver = { + .name = "cg14", + .match_table = cg14_match, + .probe = cg14_probe, + .remove = __devexit_p(cg14_remove), +}; - unregister_framebuffer(&all->info); - fb_dealloc_cmap(&all->info.cmap); - kfree(all); - } +int __init cg14_init(void) +{ + if (fb_get_options("cg14fb", NULL)) + return -ENODEV; + + return of_register_driver(&cg14_driver, &of_bus_type); } -int __init -cg14_setup(char *arg) +void __exit cg14_exit(void) { - /* No cmdline options yet... */ - return 0; + of_unregister_driver(&cg14_driver); } module_init(cg14_init); - -#ifdef MODULE module_exit(cg14_exit); -#endif MODULE_DESCRIPTION("framebuffer driver for CGfourteen chipsets"); -MODULE_AUTHOR("David S. Miller "); +MODULE_AUTHOR("David S. Miller "); +MODULE_VERSION("2.0"); MODULE_LICENSE("GPL");