diff options
author | Tomi Valkeinen <tomi.valkeinen@ti.com> | 2014-02-13 15:31:38 +0200 |
---|---|---|
committer | Tomi Valkeinen <tomi.valkeinen@ti.com> | 2014-04-17 08:10:19 +0300 |
commit | f7018c21350204c4cf628462f229d44d03545254 (patch) | |
tree | 408787177164cf51cc06f7aabdb04fcff8d2b6aa /drivers/video/tcx.c | |
parent | c26ef3eb3c11274bad1b64498d0a134f85755250 (diff) |
video: move fbdev to drivers/video/fbdev
The drivers/video directory is a mess. It contains generic video related
files, directories for backlight, console, linux logo, lots of fbdev
device drivers, fbdev framework files.
Make some order into the chaos by creating drivers/video/fbdev
directory, and move all fbdev related files there.
No functionality is changed, although I guess it is possible that some
subtle Makefile build order related issue could be created by this
patch.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Rob Clark <robdclark@gmail.com>
Acked-by: Jingoo Han <jg1.han@samsung.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/video/tcx.c')
-rw-r--r-- | drivers/video/tcx.c | 541 |
1 files changed, 0 insertions, 541 deletions
diff --git a/drivers/video/tcx.c b/drivers/video/tcx.c deleted file mode 100644 index 7fb2d696fac7..000000000000 --- a/drivers/video/tcx.c +++ /dev/null @@ -1,541 +0,0 @@ -/* tcx.c: TCX 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) 1996 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/delay.h> -#include <linux/init.h> -#include <linux/fb.h> -#include <linux/mm.h> -#include <linux/of_device.h> - -#include <asm/io.h> -#include <asm/fbio.h> - -#include "sbuslib.h" - -/* - * Local functions. - */ - -static int tcx_setcolreg(unsigned, unsigned, unsigned, unsigned, - unsigned, struct fb_info *); -static int tcx_blank(int, struct fb_info *); - -static int tcx_mmap(struct fb_info *, struct vm_area_struct *); -static int tcx_ioctl(struct fb_info *, unsigned int, unsigned long); -static int tcx_pan_display(struct fb_var_screeninfo *, struct fb_info *); - -/* - * Frame buffer operations - */ - -static struct fb_ops tcx_ops = { - .owner = THIS_MODULE, - .fb_setcolreg = tcx_setcolreg, - .fb_blank = tcx_blank, - .fb_pan_display = tcx_pan_display, - .fb_fillrect = cfb_fillrect, - .fb_copyarea = cfb_copyarea, - .fb_imageblit = cfb_imageblit, - .fb_mmap = tcx_mmap, - .fb_ioctl = tcx_ioctl, -#ifdef CONFIG_COMPAT - .fb_compat_ioctl = sbusfb_compat_ioctl, -#endif -}; - -/* THC definitions */ -#define TCX_THC_MISC_REV_SHIFT 16 -#define TCX_THC_MISC_REV_MASK 15 -#define TCX_THC_MISC_VSYNC_DIS (1 << 25) -#define TCX_THC_MISC_HSYNC_DIS (1 << 24) -#define TCX_THC_MISC_RESET (1 << 12) -#define TCX_THC_MISC_VIDEO (1 << 10) -#define TCX_THC_MISC_SYNC (1 << 9) -#define TCX_THC_MISC_VSYNC (1 << 8) -#define TCX_THC_MISC_SYNC_ENAB (1 << 7) -#define TCX_THC_MISC_CURS_RES (1 << 6) -#define TCX_THC_MISC_INT_ENAB (1 << 5) -#define TCX_THC_MISC_INT (1 << 4) -#define TCX_THC_MISC_INIT 0x9f -#define TCX_THC_REV_REV_SHIFT 20 -#define TCX_THC_REV_REV_MASK 15 -#define TCX_THC_REV_MINREV_SHIFT 28 -#define TCX_THC_REV_MINREV_MASK 15 - -/* The contents are unknown */ -struct tcx_tec { - u32 tec_matrix; - u32 tec_clip; - u32 tec_vdc; -}; - -struct tcx_thc { - u32 thc_rev; - u32 thc_pad0[511]; - 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 bt_regs { - u32 addr; - u32 color_map; - u32 control; - u32 cursor; -}; - -#define TCX_MMAP_ENTRIES 14 - -struct tcx_par { - spinlock_t lock; - struct bt_regs __iomem *bt; - struct tcx_thc __iomem *thc; - struct tcx_tec __iomem *tec; - u32 __iomem *cplane; - - u32 flags; -#define TCX_FLAG_BLANKED 0x00000001 - - unsigned long which_io; - - struct sbus_mmap_map mmap_map[TCX_MMAP_ENTRIES]; - int lowdepth; -}; - -/* Reset control plane so that WID is 8-bit plane. */ -static void __tcx_set_control_plane(struct fb_info *info) -{ - struct tcx_par *par = info->par; - u32 __iomem *p, *pend; - - if (par->lowdepth) - return; - - p = par->cplane; - if (p == NULL) - return; - for (pend = p + info->fix.smem_len; p < pend; p++) { - u32 tmp = sbus_readl(p); - - tmp &= 0xffffff; - sbus_writel(tmp, p); - } -} - -static void tcx_reset(struct fb_info *info) -{ - struct tcx_par *par = (struct tcx_par *) info->par; - unsigned long flags; - - spin_lock_irqsave(&par->lock, flags); - __tcx_set_control_plane(info); - spin_unlock_irqrestore(&par->lock, flags); -} - -static int tcx_pan_display(struct fb_var_screeninfo *var, struct fb_info *info) -{ - tcx_reset(info); - return 0; -} - -/** - * tcx_setcolreg - Optional function. Sets a color register. - * @regno: boolean, 0 copy local, 1 get_user() function - * @red: frame buffer colormap structure - * @green: The green value which can be up to 16 bits wide - * @blue: The blue value which can be up to 16 bits wide. - * @transp: If supported the alpha value which can be up to 16 bits wide. - * @info: frame buffer info structure - */ -static int tcx_setcolreg(unsigned regno, - unsigned red, unsigned green, unsigned blue, - unsigned transp, struct fb_info *info) -{ - struct tcx_par *par = (struct tcx_par *) info->par; - struct bt_regs __iomem *bt = par->bt; - unsigned long flags; - - if (regno >= 256) - return 1; - - red >>= 8; - green >>= 8; - blue >>= 8; - - spin_lock_irqsave(&par->lock, flags); - - sbus_writel(regno << 24, &bt->addr); - sbus_writel(red << 24, &bt->color_map); - sbus_writel(green << 24, &bt->color_map); - sbus_writel(blue << 24, &bt->color_map); - - spin_unlock_irqrestore(&par->lock, flags); - - return 0; -} - -/** - * tcx_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 -tcx_blank(int blank, struct fb_info *info) -{ - struct tcx_par *par = (struct tcx_par *) info->par; - struct tcx_thc __iomem *thc = par->thc; - unsigned long flags; - u32 val; - - spin_lock_irqsave(&par->lock, flags); - - val = sbus_readl(&thc->thc_misc); - - switch (blank) { - case FB_BLANK_UNBLANK: /* Unblanking */ - val &= ~(TCX_THC_MISC_VSYNC_DIS | - TCX_THC_MISC_HSYNC_DIS); - val |= TCX_THC_MISC_VIDEO; - par->flags &= ~TCX_FLAG_BLANKED; - break; - - case FB_BLANK_NORMAL: /* Normal blanking */ - val &= ~TCX_THC_MISC_VIDEO; - par->flags |= TCX_FLAG_BLANKED; - break; - - case FB_BLANK_VSYNC_SUSPEND: /* VESA blank (vsync off) */ - val |= TCX_THC_MISC_VSYNC_DIS; - break; - case FB_BLANK_HSYNC_SUSPEND: /* VESA blank (hsync off) */ - val |= TCX_THC_MISC_HSYNC_DIS; - break; - - case FB_BLANK_POWERDOWN: /* Poweroff */ - break; - } - - sbus_writel(val, &thc->thc_misc); - - spin_unlock_irqrestore(&par->lock, flags); - - return 0; -} - -static struct sbus_mmap_map __tcx_mmap_map[TCX_MMAP_ENTRIES] = { - { - .voff = TCX_RAM8BIT, - .size = SBUS_MMAP_FBSIZE(1) - }, - { - .voff = TCX_RAM24BIT, - .size = SBUS_MMAP_FBSIZE(4) - }, - { - .voff = TCX_UNK3, - .size = SBUS_MMAP_FBSIZE(8) - }, - { - .voff = TCX_UNK4, - .size = SBUS_MMAP_FBSIZE(8) - }, - { - .voff = TCX_CONTROLPLANE, - .size = SBUS_MMAP_FBSIZE(4) - }, - { - .voff = TCX_UNK6, - .size = SBUS_MMAP_FBSIZE(8) - }, - { - .voff = TCX_UNK7, - .size = SBUS_MMAP_FBSIZE(8) - }, - { - .voff = TCX_TEC, - .size = PAGE_SIZE - }, - { - .voff = TCX_BTREGS, - .size = PAGE_SIZE - }, - { - .voff = TCX_THC, - .size = PAGE_SIZE - }, - { - .voff = TCX_DHC, - .size = PAGE_SIZE - }, - { - .voff = TCX_ALT, - .size = PAGE_SIZE - }, - { - .voff = TCX_UNK2, - .size = 0x20000 - }, - { .size = 0 } -}; - -static int tcx_mmap(struct fb_info *info, struct vm_area_struct *vma) -{ - struct tcx_par *par = (struct tcx_par *)info->par; - - return sbusfb_mmap_helper(par->mmap_map, - info->fix.smem_start, info->fix.smem_len, - par->which_io, vma); -} - -static int tcx_ioctl(struct fb_info *info, unsigned int cmd, - unsigned long arg) -{ - struct tcx_par *par = (struct tcx_par *) info->par; - - return sbusfb_ioctl_helper(cmd, arg, info, - FBTYPE_TCXCOLOR, - (par->lowdepth ? 8 : 24), - info->fix.smem_len); -} - -/* - * Initialisation - */ - -static void -tcx_init_fix(struct fb_info *info, int linebytes) -{ - struct tcx_par *par = (struct tcx_par *)info->par; - const char *tcx_name; - - if (par->lowdepth) - tcx_name = "TCX8"; - else - tcx_name = "TCX24"; - - strlcpy(info->fix.id, tcx_name, sizeof(info->fix.id)); - - info->fix.type = FB_TYPE_PACKED_PIXELS; - info->fix.visual = FB_VISUAL_PSEUDOCOLOR; - - info->fix.line_length = linebytes; - - info->fix.accel = FB_ACCEL_SUN_TCX; -} - -static void tcx_unmap_regs(struct platform_device *op, struct fb_info *info, - struct tcx_par *par) -{ - if (par->tec) - of_iounmap(&op->resource[7], - par->tec, sizeof(struct tcx_tec)); - if (par->thc) - of_iounmap(&op->resource[9], - par->thc, sizeof(struct tcx_thc)); - if (par->bt) - of_iounmap(&op->resource[8], - par->bt, sizeof(struct bt_regs)); - if (par->cplane) - of_iounmap(&op->resource[4], - par->cplane, info->fix.smem_len * sizeof(u32)); - if (info->screen_base) - of_iounmap(&op->resource[0], - info->screen_base, info->fix.smem_len); -} - -static int tcx_probe(struct platform_device *op) -{ - struct device_node *dp = op->dev.of_node; - struct fb_info *info; - struct tcx_par *par; - int linebytes, i, err; - - info = framebuffer_alloc(sizeof(struct tcx_par), &op->dev); - - err = -ENOMEM; - if (!info) - goto out_err; - par = info->par; - - spin_lock_init(&par->lock); - - par->lowdepth = - (of_find_property(dp, "tcx-8-bit", NULL) != NULL); - - sbusfb_fill_var(&info->var, dp, 8); - info->var.red.length = 8; - info->var.green.length = 8; - info->var.blue.length = 8; - - linebytes = of_getintprop_default(dp, "linebytes", - info->var.xres); - info->fix.smem_len = PAGE_ALIGN(linebytes * info->var.yres); - - par->tec = of_ioremap(&op->resource[7], 0, - sizeof(struct tcx_tec), "tcx tec"); - par->thc = of_ioremap(&op->resource[9], 0, - sizeof(struct tcx_thc), "tcx thc"); - par->bt = of_ioremap(&op->resource[8], 0, - sizeof(struct bt_regs), "tcx dac"); - info->screen_base = of_ioremap(&op->resource[0], 0, - info->fix.smem_len, "tcx ram"); - if (!par->tec || !par->thc || - !par->bt || !info->screen_base) - goto out_unmap_regs; - - memcpy(&par->mmap_map, &__tcx_mmap_map, sizeof(par->mmap_map)); - if (!par->lowdepth) { - par->cplane = of_ioremap(&op->resource[4], 0, - info->fix.smem_len * sizeof(u32), - "tcx cplane"); - if (!par->cplane) - goto out_unmap_regs; - } else { - par->mmap_map[1].size = SBUS_MMAP_EMPTY; - par->mmap_map[4].size = SBUS_MMAP_EMPTY; - par->mmap_map[5].size = SBUS_MMAP_EMPTY; - par->mmap_map[6].size = SBUS_MMAP_EMPTY; - } - - info->fix.smem_start = op->resource[0].start; - par->which_io = op->resource[0].flags & IORESOURCE_BITS; - - for (i = 0; i < TCX_MMAP_ENTRIES; i++) { - int j; - - switch (i) { - case 10: - j = 12; - break; - - case 11: case 12: - j = i - 1; - break; - - default: - j = i; - break; - } - par->mmap_map[i].poff = op->resource[j].start; - } - - info->flags = FBINFO_DEFAULT; - info->fbops = &tcx_ops; - - /* Initialize brooktree DAC. */ - sbus_writel(0x04 << 24, &par->bt->addr); /* color planes */ - sbus_writel(0xff << 24, &par->bt->control); - sbus_writel(0x05 << 24, &par->bt->addr); - sbus_writel(0x00 << 24, &par->bt->control); - sbus_writel(0x06 << 24, &par->bt->addr); /* overlay plane */ - sbus_writel(0x73 << 24, &par->bt->control); - sbus_writel(0x07 << 24, &par->bt->addr); - sbus_writel(0x00 << 24, &par->bt->control); - - tcx_reset(info); - - tcx_blank(FB_BLANK_UNBLANK, info); - - if (fb_alloc_cmap(&info->cmap, 256, 0)) - goto out_unmap_regs; - - fb_set_cmap(&info->cmap, info); - tcx_init_fix(info, linebytes); - - err = register_framebuffer(info); - if (err < 0) - goto out_dealloc_cmap; - - dev_set_drvdata(&op->dev, info); - - printk(KERN_INFO "%s: TCX at %lx:%lx, %s\n", - dp->full_name, - par->which_io, - info->fix.smem_start, - par->lowdepth ? "8-bit only" : "24-bit depth"); - - return 0; - -out_dealloc_cmap: - fb_dealloc_cmap(&info->cmap); - -out_unmap_regs: - tcx_unmap_regs(op, info, par); - framebuffer_release(info); - -out_err: - return err; -} - -static int tcx_remove(struct platform_device *op) -{ - struct fb_info *info = dev_get_drvdata(&op->dev); - struct tcx_par *par = info->par; - - unregister_framebuffer(info); - fb_dealloc_cmap(&info->cmap); - - tcx_unmap_regs(op, info, par); - - framebuffer_release(info); - - return 0; -} - -static const struct of_device_id tcx_match[] = { - { - .name = "SUNW,tcx", - }, - {}, -}; -MODULE_DEVICE_TABLE(of, tcx_match); - -static struct platform_driver tcx_driver = { - .driver = { - .name = "tcx", - .owner = THIS_MODULE, - .of_match_table = tcx_match, - }, - .probe = tcx_probe, - .remove = tcx_remove, -}; - -static int __init tcx_init(void) -{ - if (fb_get_options("tcxfb", NULL)) - return -ENODEV; - - return platform_driver_register(&tcx_driver); -} - -static void __exit tcx_exit(void) -{ - platform_driver_unregister(&tcx_driver); -} - -module_init(tcx_init); -module_exit(tcx_exit); - -MODULE_DESCRIPTION("framebuffer driver for TCX chipsets"); -MODULE_AUTHOR("David S. Miller <davem@davemloft.net>"); -MODULE_VERSION("2.0"); -MODULE_LICENSE("GPL"); |