diff options
Diffstat (limited to 'drivers/video/bw2.c')
| -rw-r--r-- | drivers/video/bw2.c | 405 |
1 files changed, 0 insertions, 405 deletions
diff --git a/drivers/video/bw2.c b/drivers/video/bw2.c deleted file mode 100644 index c66e3d52cbf..00000000000 --- a/drivers/video/bw2.c +++ /dev/null @@ -1,405 +0,0 @@ -/* bw2.c: BWTWO frame buffer driver - * - * 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) - * - * Driver layout based loosely on tgafb.c, see that file for credits. - */ - -#include <linux/module.h> -#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 <asm/io.h> -#include <asm/oplib.h> -#include <asm/prom.h> -#include <asm/of_device.h> -#include <asm/fbio.h> - -#include "sbuslib.h" - -/* - * Local functions. - */ - -static int bw2_blank(int, struct fb_info *); - -static int bw2_mmap(struct fb_info *, struct vm_area_struct *); -static int bw2_ioctl(struct fb_info *, unsigned int, unsigned long); - -/* - * Frame buffer operations - */ - -static struct fb_ops bw2_ops = { - .owner = THIS_MODULE, - .fb_blank = bw2_blank, - .fb_fillrect = cfb_fillrect, - .fb_copyarea = cfb_copyarea, - .fb_imageblit = cfb_imageblit, - .fb_mmap = bw2_mmap, - .fb_ioctl = bw2_ioctl, -#ifdef CONFIG_COMPAT - .fb_compat_ioctl = sbusfb_compat_ioctl, -#endif -}; - -/* OBio addresses for the bwtwo registers */ -#define BWTWO_REGISTER_OFFSET 0x400000 - -struct bt_regs { - u32 addr; - u32 color_map; - u32 control; - u32 cursor; -}; - -struct bw2_regs { - struct bt_regs cmap; - 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 */ -#define BWTWO_SR_RES_MASK 0x70 -#define BWTWO_SR_1600_1280 0x50 -#define BWTWO_SR_1152_900_76_A 0x40 -#define BWTWO_SR_1152_900_76_B 0x60 -#define BWTWO_SR_ID_MASK 0x0f -#define BWTWO_SR_ID_MONO 0x02 -#define BWTWO_SR_ID_MONO_ECL 0x03 -#define BWTWO_SR_ID_MSYNC 0x04 -#define BWTWO_SR_ID_NOCONN 0x0a - -/* Control Register Constants */ -#define BWTWO_CTL_ENABLE_INTS 0x80 -#define BWTWO_CTL_ENABLE_VIDEO 0x40 -#define BWTWO_CTL_ENABLE_TIMING 0x20 -#define BWTWO_CTL_ENABLE_CURCMP 0x10 -#define BWTWO_CTL_XTAL_MASK 0x0C -#define BWTWO_CTL_DIVISOR_MASK 0x03 - -/* Status Register Constants */ -#define BWTWO_STAT_PENDING_INT 0x80 -#define BWTWO_STAT_MSENSE_MASK 0x70 -#define BWTWO_STAT_ID_MASK 0x0f - -struct bw2_par { - spinlock_t lock; - struct bw2_regs __iomem *regs; - - u32 flags; -#define BW2_FLAG_BLANKED 0x00000001 - - unsigned long physbase; - unsigned long which_io; - unsigned long fbsize; -}; - -/** - * bw2_blank - Optional function. Blanks the display. - * @blank_mode: the blank mode we want. - * @info: frame buffer structure that represents a single frame buffer - */ -static int -bw2_blank(int blank, struct fb_info *info) -{ - struct bw2_par *par = (struct bw2_par *) info->par; - struct bw2_regs __iomem *regs = par->regs; - unsigned long flags; - u8 val; - - spin_lock_irqsave(&par->lock, flags); - - switch (blank) { - case FB_BLANK_UNBLANK: /* Unblanking */ - val = sbus_readb(®s->control); - val |= BWTWO_CTL_ENABLE_VIDEO; - sbus_writeb(val, ®s->control); - par->flags &= ~BW2_FLAG_BLANKED; - break; - - case FB_BLANK_NORMAL: /* Normal blanking */ - case FB_BLANK_VSYNC_SUSPEND: /* VESA blank (vsync off) */ - case FB_BLANK_HSYNC_SUSPEND: /* VESA blank (hsync off) */ - case FB_BLANK_POWERDOWN: /* Poweroff */ - val = sbus_readb(®s->control); - val &= ~BWTWO_CTL_ENABLE_VIDEO; - sbus_writeb(val, ®s->control); - par->flags |= BW2_FLAG_BLANKED; - break; - } - - spin_unlock_irqrestore(&par->lock, flags); - - return 0; -} - -static struct sbus_mmap_map bw2_mmap_map[] = { - { - .size = SBUS_MMAP_FBSIZE(1) - }, - { .size = 0 } -}; - -static int bw2_mmap(struct fb_info *info, struct vm_area_struct *vma) -{ - struct bw2_par *par = (struct bw2_par *)info->par; - - return sbusfb_mmap_helper(bw2_mmap_map, - par->physbase, par->fbsize, - par->which_io, - vma); -} - -static int bw2_ioctl(struct fb_info *info, unsigned int cmd, unsigned long arg) -{ - struct bw2_par *par = (struct bw2_par *) info->par; - - return sbusfb_ioctl_helper(cmd, arg, info, - FBTYPE_SUN2BW, 1, par->fbsize); -} - -/* - * Initialisation - */ - -static void -bw2_init_fix(struct fb_info *info, int linebytes) -{ - strlcpy(info->fix.id, "bwtwo", sizeof(info->fix.id)); - - info->fix.type = FB_TYPE_PACKED_PIXELS; - info->fix.visual = FB_VISUAL_MONO01; - - info->fix.line_length = linebytes; - - info->fix.accel = FB_ACCEL_SUN_BWTWO; -} - -static u8 bw2regs_1600[] __initdata = { - 0x14, 0x8b, 0x15, 0x28, 0x16, 0x03, 0x17, 0x13, - 0x18, 0x7b, 0x19, 0x05, 0x1a, 0x34, 0x1b, 0x2e, - 0x1c, 0x00, 0x1d, 0x0a, 0x1e, 0xff, 0x1f, 0x01, - 0x10, 0x21, 0 -}; - -static u8 bw2regs_ecl[] __initdata = { - 0x14, 0x65, 0x15, 0x1e, 0x16, 0x04, 0x17, 0x0c, - 0x18, 0x5e, 0x19, 0x03, 0x1a, 0xa7, 0x1b, 0x23, - 0x1c, 0x00, 0x1d, 0x08, 0x1e, 0xff, 0x1f, 0x01, - 0x10, 0x20, 0 -}; - -static u8 bw2regs_analog[] __initdata = { - 0x14, 0xbb, 0x15, 0x2b, 0x16, 0x03, 0x17, 0x13, - 0x18, 0xb0, 0x19, 0x03, 0x1a, 0xa6, 0x1b, 0x22, - 0x1c, 0x01, 0x1d, 0x05, 0x1e, 0xff, 0x1f, 0x01, - 0x10, 0x20, 0 -}; - -static u8 bw2regs_76hz[] __initdata = { - 0x14, 0xb7, 0x15, 0x27, 0x16, 0x03, 0x17, 0x0f, - 0x18, 0xae, 0x19, 0x03, 0x1a, 0xae, 0x1b, 0x2a, - 0x1c, 0x01, 0x1d, 0x09, 0x1e, 0xff, 0x1f, 0x01, - 0x10, 0x24, 0 -}; - -static u8 bw2regs_66hz[] __initdata = { - 0x14, 0xbb, 0x15, 0x2b, 0x16, 0x04, 0x17, 0x14, - 0x18, 0xae, 0x19, 0x03, 0x1a, 0xa8, 0x1b, 0x24, - 0x1c, 0x01, 0x1d, 0x05, 0x1e, 0xff, 0x1f, 0x01, - 0x10, 0x20, 0 -}; - -static void bw2_do_default_mode(struct bw2_par *par, struct fb_info *info, - int *linebytes) -{ - u8 status, mon; - u8 *p; - - status = sbus_readb(&par->regs->status); - mon = status & BWTWO_SR_RES_MASK; - switch (status & BWTWO_SR_ID_MASK) { - case BWTWO_SR_ID_MONO_ECL: - if (mon == BWTWO_SR_1600_1280) { - p = bw2regs_1600; - info->var.xres = info->var.xres_virtual = 1600; - info->var.yres = info->var.yres_virtual = 1280; - *linebytes = 1600 / 8; - } else - p = bw2regs_ecl; - break; - - case BWTWO_SR_ID_MONO: - p = bw2regs_analog; - break; - - case BWTWO_SR_ID_MSYNC: - if (mon == BWTWO_SR_1152_900_76_A || - mon == BWTWO_SR_1152_900_76_B) - p = bw2regs_76hz; - else - p = bw2regs_66hz; - break; - - case BWTWO_SR_ID_NOCONN: - return; - - default: - prom_printf("bw2: can't handle SR %02x\n", - status); - prom_halt(); - } - for ( ; *p; p += 2) { - u8 __iomem *regp = &((u8 __iomem *)par->regs)[p[0]]; - sbus_writeb(p[1], regp); - } -} - -struct all_info { - struct fb_info info; - struct bw2_par par; -}; - -static int __devinit bw2_init_one(struct of_device *op) -{ - struct device_node *dp = op->node; - struct all_info *all; - int linebytes, err; - - all = kzalloc(sizeof(*all), GFP_KERNEL); - if (!all) - return -ENOMEM; - - spin_lock_init(&all->par.lock); - - 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 = of_ioremap(&op->resource[0], BWTWO_REGISTER_OFFSET, - sizeof(struct bw2_regs), "bw2 regs"); - - 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; - - 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); - - 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 err; - } - - dev_set_drvdata(&op->dev, all); - - printk("%s: bwtwo at %lx:%lx\n", - dp->full_name, - all->par.which_io, all->par.physbase); - - return 0; -} - -static int __devinit bw2_probe(struct of_device *dev, const struct of_device_id *match) -{ - struct of_device *op = to_of_device(&dev->dev); - - return bw2_init_one(op); -} - -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; -} - -static struct of_device_id bw2_match[] = { - { - .name = "bwtwo", - }, - {}, -}; -MODULE_DEVICE_TABLE(of, bw2_match); - -static struct of_platform_driver bw2_driver = { - .name = "bw2", - .match_table = bw2_match, - .probe = bw2_probe, - .remove = __devexit_p(bw2_remove), -}; - -static int __init bw2_init(void) -{ - if (fb_get_options("bw2fb", NULL)) - return -ENODEV; - - return of_register_driver(&bw2_driver, &of_bus_type); -} - -static void __exit bw2_exit(void) -{ - return of_unregister_driver(&bw2_driver); -} - - -module_init(bw2_init); -module_exit(bw2_exit); - -MODULE_DESCRIPTION("framebuffer driver for BWTWO chipsets"); -MODULE_AUTHOR("David S. Miller <davem@davemloft.net>"); -MODULE_VERSION("2.0"); -MODULE_LICENSE("GPL"); |