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/cg6.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/cg6.c')
-rw-r--r-- | drivers/video/cg6.c | 885 |
1 files changed, 0 insertions, 885 deletions
diff --git a/drivers/video/cg6.c b/drivers/video/cg6.c deleted file mode 100644 index 70781fea092a..000000000000 --- a/drivers/video/cg6.c +++ /dev/null @@ -1,885 +0,0 @@ -/* cg6.c: CGSIX (GX, GXplus, TGX) 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 cg6_setcolreg(unsigned, unsigned, unsigned, unsigned, - unsigned, struct fb_info *); -static int cg6_blank(int, struct fb_info *); - -static void cg6_imageblit(struct fb_info *, const struct fb_image *); -static void cg6_fillrect(struct fb_info *, const struct fb_fillrect *); -static void cg6_copyarea(struct fb_info *info, const struct fb_copyarea *area); -static int cg6_sync(struct fb_info *); -static int cg6_mmap(struct fb_info *, struct vm_area_struct *); -static int cg6_ioctl(struct fb_info *, unsigned int, unsigned long); -static int cg6_pan_display(struct fb_var_screeninfo *, struct fb_info *); - -/* - * Frame buffer operations - */ - -static struct fb_ops cg6_ops = { - .owner = THIS_MODULE, - .fb_setcolreg = cg6_setcolreg, - .fb_blank = cg6_blank, - .fb_pan_display = cg6_pan_display, - .fb_fillrect = cg6_fillrect, - .fb_copyarea = cg6_copyarea, - .fb_imageblit = cg6_imageblit, - .fb_sync = cg6_sync, - .fb_mmap = cg6_mmap, - .fb_ioctl = cg6_ioctl, -#ifdef CONFIG_COMPAT - .fb_compat_ioctl = sbusfb_compat_ioctl, -#endif -}; - -/* Offset of interesting structures in the OBIO space */ -/* - * Brooktree is the video dac and is funny to program on the cg6. - * (it's even funnier on the cg3) - * The FBC could be the frame buffer control - * The FHC could is the frame buffer hardware control. - */ -#define CG6_ROM_OFFSET 0x0UL -#define CG6_BROOKTREE_OFFSET 0x200000UL -#define CG6_DHC_OFFSET 0x240000UL -#define CG6_ALT_OFFSET 0x280000UL -#define CG6_FHC_OFFSET 0x300000UL -#define CG6_THC_OFFSET 0x301000UL -#define CG6_FBC_OFFSET 0x700000UL -#define CG6_TEC_OFFSET 0x701000UL -#define CG6_RAM_OFFSET 0x800000UL - -/* FHC definitions */ -#define CG6_FHC_FBID_SHIFT 24 -#define CG6_FHC_FBID_MASK 255 -#define CG6_FHC_REV_SHIFT 20 -#define CG6_FHC_REV_MASK 15 -#define CG6_FHC_FROP_DISABLE (1 << 19) -#define CG6_FHC_ROW_DISABLE (1 << 18) -#define CG6_FHC_SRC_DISABLE (1 << 17) -#define CG6_FHC_DST_DISABLE (1 << 16) -#define CG6_FHC_RESET (1 << 15) -#define CG6_FHC_LITTLE_ENDIAN (1 << 13) -#define CG6_FHC_RES_MASK (3 << 11) -#define CG6_FHC_1024 (0 << 11) -#define CG6_FHC_1152 (1 << 11) -#define CG6_FHC_1280 (2 << 11) -#define CG6_FHC_1600 (3 << 11) -#define CG6_FHC_CPU_MASK (3 << 9) -#define CG6_FHC_CPU_SPARC (0 << 9) -#define CG6_FHC_CPU_68020 (1 << 9) -#define CG6_FHC_CPU_386 (2 << 9) -#define CG6_FHC_TEST (1 << 8) -#define CG6_FHC_TEST_X_SHIFT 4 -#define CG6_FHC_TEST_X_MASK 15 -#define CG6_FHC_TEST_Y_SHIFT 0 -#define CG6_FHC_TEST_Y_MASK 15 - -/* FBC mode definitions */ -#define CG6_FBC_BLIT_IGNORE 0x00000000 -#define CG6_FBC_BLIT_NOSRC 0x00100000 -#define CG6_FBC_BLIT_SRC 0x00200000 -#define CG6_FBC_BLIT_ILLEGAL 0x00300000 -#define CG6_FBC_BLIT_MASK 0x00300000 - -#define CG6_FBC_VBLANK 0x00080000 - -#define CG6_FBC_MODE_IGNORE 0x00000000 -#define CG6_FBC_MODE_COLOR8 0x00020000 -#define CG6_FBC_MODE_COLOR1 0x00040000 -#define CG6_FBC_MODE_HRMONO 0x00060000 -#define CG6_FBC_MODE_MASK 0x00060000 - -#define CG6_FBC_DRAW_IGNORE 0x00000000 -#define CG6_FBC_DRAW_RENDER 0x00008000 -#define CG6_FBC_DRAW_PICK 0x00010000 -#define CG6_FBC_DRAW_ILLEGAL 0x00018000 -#define CG6_FBC_DRAW_MASK 0x00018000 - -#define CG6_FBC_BWRITE0_IGNORE 0x00000000 -#define CG6_FBC_BWRITE0_ENABLE 0x00002000 -#define CG6_FBC_BWRITE0_DISABLE 0x00004000 -#define CG6_FBC_BWRITE0_ILLEGAL 0x00006000 -#define CG6_FBC_BWRITE0_MASK 0x00006000 - -#define CG6_FBC_BWRITE1_IGNORE 0x00000000 -#define CG6_FBC_BWRITE1_ENABLE 0x00000800 -#define CG6_FBC_BWRITE1_DISABLE 0x00001000 -#define CG6_FBC_BWRITE1_ILLEGAL 0x00001800 -#define CG6_FBC_BWRITE1_MASK 0x00001800 - -#define CG6_FBC_BREAD_IGNORE 0x00000000 -#define CG6_FBC_BREAD_0 0x00000200 -#define CG6_FBC_BREAD_1 0x00000400 -#define CG6_FBC_BREAD_ILLEGAL 0x00000600 -#define CG6_FBC_BREAD_MASK 0x00000600 - -#define CG6_FBC_BDISP_IGNORE 0x00000000 -#define CG6_FBC_BDISP_0 0x00000080 -#define CG6_FBC_BDISP_1 0x00000100 -#define CG6_FBC_BDISP_ILLEGAL 0x00000180 -#define CG6_FBC_BDISP_MASK 0x00000180 - -#define CG6_FBC_INDEX_MOD 0x00000040 -#define CG6_FBC_INDEX_MASK 0x00000030 - -/* THC definitions */ -#define CG6_THC_MISC_REV_SHIFT 16 -#define CG6_THC_MISC_REV_MASK 15 -#define CG6_THC_MISC_RESET (1 << 12) -#define CG6_THC_MISC_VIDEO (1 << 10) -#define CG6_THC_MISC_SYNC (1 << 9) -#define CG6_THC_MISC_VSYNC (1 << 8) -#define CG6_THC_MISC_SYNC_ENAB (1 << 7) -#define CG6_THC_MISC_CURS_RES (1 << 6) -#define CG6_THC_MISC_INT_ENAB (1 << 5) -#define CG6_THC_MISC_INT (1 << 4) -#define CG6_THC_MISC_INIT 0x9f -#define CG6_THC_CURSOFF ((65536-32) | ((65536-32) << 16)) - -/* The contents are unknown */ -struct cg6_tec { - int tec_matrix; - int tec_clip; - int tec_vdc; -}; - -struct cg6_thc { - 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]; - 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 { - u32 addr; - u32 color_map; - u32 control; - u32 cursor; -}; - -struct cg6_par { - spinlock_t lock; - struct bt_regs __iomem *bt; - struct cg6_fbc __iomem *fbc; - struct cg6_thc __iomem *thc; - struct cg6_tec __iomem *tec; - u32 __iomem *fhc; - - u32 flags; -#define CG6_FLAG_BLANKED 0x00000001 - - unsigned long which_io; -}; - -static int cg6_sync(struct fb_info *info) -{ - struct cg6_par *par = (struct cg6_par *)info->par; - struct cg6_fbc __iomem *fbc = par->fbc; - int limit = 10000; - - do { - if (!(sbus_readl(&fbc->s) & 0x10000000)) - break; - udelay(10); - } while (--limit > 0); - - return 0; -} - -static void cg6_switch_from_graph(struct cg6_par *par) -{ - struct cg6_thc __iomem *thc = par->thc; - unsigned long flags; - - spin_lock_irqsave(&par->lock, flags); - - /* Hide the cursor. */ - sbus_writel(CG6_THC_CURSOFF, &thc->thc_cursxy); - - spin_unlock_irqrestore(&par->lock, flags); -} - -static int cg6_pan_display(struct fb_var_screeninfo *var, struct fb_info *info) -{ - struct cg6_par *par = (struct cg6_par *)info->par; - - /* We just use this to catch switches out of - * graphics mode. - */ - cg6_switch_from_graph(par); - - if (var->xoffset || var->yoffset || var->vmode) - return -EINVAL; - return 0; -} - -/** - * cg6_fillrect - Draws a rectangle on the screen. - * - * @info: frame buffer structure that represents a single frame buffer - * @rect: structure defining the rectagle and operation. - */ -static void cg6_fillrect(struct fb_info *info, const struct fb_fillrect *rect) -{ - struct cg6_par *par = (struct cg6_par *)info->par; - struct cg6_fbc __iomem *fbc = par->fbc; - unsigned long flags; - s32 val; - - /* CG6 doesn't handle ROP_XOR */ - - spin_lock_irqsave(&par->lock, flags); - - cg6_sync(info); - - sbus_writel(rect->color, &fbc->fg); - sbus_writel(~(u32)0, &fbc->pixelm); - sbus_writel(0xea80ff00, &fbc->alu); - sbus_writel(0, &fbc->s); - sbus_writel(0, &fbc->clip); - sbus_writel(~(u32)0, &fbc->pm); - sbus_writel(rect->dy, &fbc->arecty); - sbus_writel(rect->dx, &fbc->arectx); - sbus_writel(rect->dy + rect->height, &fbc->arecty); - sbus_writel(rect->dx + rect->width, &fbc->arectx); - do { - val = sbus_readl(&fbc->draw); - } while (val < 0 && (val & 0x20000000)); - spin_unlock_irqrestore(&par->lock, flags); -} - -/** - * cg6_copyarea - Copies one area of the screen to another area. - * - * @info: frame buffer structure that represents a single frame buffer - * @area: Structure providing the data to copy the framebuffer contents - * from one region to another. - * - * This drawing operation copies a rectangular area from one area of the - * screen to another area. - */ -static void cg6_copyarea(struct fb_info *info, const struct fb_copyarea *area) -{ - struct cg6_par *par = (struct cg6_par *)info->par; - struct cg6_fbc __iomem *fbc = par->fbc; - unsigned long flags; - int i; - - spin_lock_irqsave(&par->lock, flags); - - cg6_sync(info); - - sbus_writel(0xff, &fbc->fg); - sbus_writel(0x00, &fbc->bg); - sbus_writel(~0, &fbc->pixelm); - sbus_writel(0xe880cccc, &fbc->alu); - sbus_writel(0, &fbc->s); - sbus_writel(0, &fbc->clip); - - sbus_writel(area->sy, &fbc->y0); - sbus_writel(area->sx, &fbc->x0); - sbus_writel(area->sy + area->height - 1, &fbc->y1); - sbus_writel(area->sx + area->width - 1, &fbc->x1); - sbus_writel(area->dy, &fbc->y2); - sbus_writel(area->dx, &fbc->x2); - sbus_writel(area->dy + area->height - 1, &fbc->y3); - sbus_writel(area->dx + area->width - 1, &fbc->x3); - do { - i = sbus_readl(&fbc->blit); - } while (i < 0 && (i & 0x20000000)); - spin_unlock_irqrestore(&par->lock, flags); -} - -/** - * cg6_imageblit - Copies a image from system memory to the screen. - * - * @info: frame buffer structure that represents a single frame buffer - * @image: structure defining the image. - */ -static void cg6_imageblit(struct fb_info *info, const struct fb_image *image) -{ - struct cg6_par *par = (struct cg6_par *)info->par; - struct cg6_fbc __iomem *fbc = par->fbc; - const u8 *data = image->data; - unsigned long flags; - u32 x, y; - int i, width; - - if (image->depth > 1) { - cfb_imageblit(info, image); - return; - } - - spin_lock_irqsave(&par->lock, flags); - - cg6_sync(info); - - sbus_writel(image->fg_color, &fbc->fg); - sbus_writel(image->bg_color, &fbc->bg); - sbus_writel(0x140000, &fbc->mode); - sbus_writel(0xe880fc30, &fbc->alu); - sbus_writel(~(u32)0, &fbc->pixelm); - sbus_writel(0, &fbc->s); - sbus_writel(0, &fbc->clip); - sbus_writel(0xff, &fbc->pm); - sbus_writel(32, &fbc->incx); - sbus_writel(0, &fbc->incy); - - x = image->dx; - y = image->dy; - for (i = 0; i < image->height; i++) { - width = image->width; - - while (width >= 32) { - u32 val; - - sbus_writel(y, &fbc->y0); - sbus_writel(x, &fbc->x0); - sbus_writel(x + 32 - 1, &fbc->x1); - - val = ((u32)data[0] << 24) | - ((u32)data[1] << 16) | - ((u32)data[2] << 8) | - ((u32)data[3] << 0); - sbus_writel(val, &fbc->font); - - data += 4; - x += 32; - width -= 32; - } - if (width) { - u32 val; - - sbus_writel(y, &fbc->y0); - sbus_writel(x, &fbc->x0); - sbus_writel(x + width - 1, &fbc->x1); - if (width <= 8) { - val = (u32) data[0] << 24; - data += 1; - } else if (width <= 16) { - val = ((u32) data[0] << 24) | - ((u32) data[1] << 16); - data += 2; - } else { - val = ((u32) data[0] << 24) | - ((u32) data[1] << 16) | - ((u32) data[2] << 8); - data += 3; - } - sbus_writel(val, &fbc->font); - } - - y += 1; - x = image->dx; - } - - spin_unlock_irqrestore(&par->lock, flags); -} - -/** - * cg6_setcolreg - 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 cg6_setcolreg(unsigned regno, - unsigned red, unsigned green, unsigned blue, - unsigned transp, struct fb_info *info) -{ - struct cg6_par *par = (struct cg6_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((u32)regno << 24, &bt->addr); - sbus_writel((u32)red << 24, &bt->color_map); - sbus_writel((u32)green << 24, &bt->color_map); - sbus_writel((u32)blue << 24, &bt->color_map); - - spin_unlock_irqrestore(&par->lock, flags); - - return 0; -} - -/** - * cg6_blank - Blanks the display. - * - * @blank_mode: the blank mode we want. - * @info: frame buffer structure that represents a single frame buffer - */ -static int cg6_blank(int blank, struct fb_info *info) -{ - struct cg6_par *par = (struct cg6_par *)info->par; - struct cg6_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 |= CG6_THC_MISC_VIDEO; - par->flags &= ~CG6_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 &= ~CG6_THC_MISC_VIDEO; - par->flags |= CG6_FLAG_BLANKED; - break; - } - - sbus_writel(val, &thc->thc_misc); - spin_unlock_irqrestore(&par->lock, flags); - - return 0; -} - -static struct sbus_mmap_map cg6_mmap_map[] = { - { - .voff = CG6_FBC, - .poff = CG6_FBC_OFFSET, - .size = PAGE_SIZE - }, - { - .voff = CG6_TEC, - .poff = CG6_TEC_OFFSET, - .size = PAGE_SIZE - }, - { - .voff = CG6_BTREGS, - .poff = CG6_BROOKTREE_OFFSET, - .size = PAGE_SIZE - }, - { - .voff = CG6_FHC, - .poff = CG6_FHC_OFFSET, - .size = PAGE_SIZE - }, - { - .voff = CG6_THC, - .poff = CG6_THC_OFFSET, - .size = PAGE_SIZE - }, - { - .voff = CG6_ROM, - .poff = CG6_ROM_OFFSET, - .size = 0x10000 - }, - { - .voff = CG6_RAM, - .poff = CG6_RAM_OFFSET, - .size = SBUS_MMAP_FBSIZE(1) - }, - { - .voff = CG6_DHC, - .poff = CG6_DHC_OFFSET, - .size = 0x40000 - }, - { .size = 0 } -}; - -static int cg6_mmap(struct fb_info *info, struct vm_area_struct *vma) -{ - struct cg6_par *par = (struct cg6_par *)info->par; - - return sbusfb_mmap_helper(cg6_mmap_map, - info->fix.smem_start, info->fix.smem_len, - par->which_io, vma); -} - -static int cg6_ioctl(struct fb_info *info, unsigned int cmd, unsigned long arg) -{ - return sbusfb_ioctl_helper(cmd, arg, info, - FBTYPE_SUNFAST_COLOR, 8, info->fix.smem_len); -} - -/* - * Initialisation - */ - -static void cg6_init_fix(struct fb_info *info, int linebytes) -{ - struct cg6_par *par = (struct cg6_par *)info->par; - const char *cg6_cpu_name, *cg6_card_name; - u32 conf; - - conf = sbus_readl(par->fhc); - switch (conf & CG6_FHC_CPU_MASK) { - case CG6_FHC_CPU_SPARC: - cg6_cpu_name = "sparc"; - break; - case CG6_FHC_CPU_68020: - cg6_cpu_name = "68020"; - break; - default: - cg6_cpu_name = "i386"; - break; - } - if (((conf >> CG6_FHC_REV_SHIFT) & CG6_FHC_REV_MASK) >= 11) { - if (info->fix.smem_len <= 0x100000) - cg6_card_name = "TGX"; - else - cg6_card_name = "TGX+"; - } else { - if (info->fix.smem_len <= 0x100000) - cg6_card_name = "GX"; - else - cg6_card_name = "GX+"; - } - - sprintf(info->fix.id, "%s %s", cg6_card_name, cg6_cpu_name); - info->fix.id[sizeof(info->fix.id) - 1] = 0; - - info->fix.type = FB_TYPE_PACKED_PIXELS; - info->fix.visual = FB_VISUAL_PSEUDOCOLOR; - - info->fix.line_length = linebytes; - - info->fix.accel = FB_ACCEL_SUN_CGSIX; -} - -/* Initialize Brooktree DAC */ -static void cg6_bt_init(struct cg6_par *par) -{ - struct bt_regs __iomem *bt = par->bt; - - sbus_writel(0x04 << 24, &bt->addr); /* color planes */ - sbus_writel(0xff << 24, &bt->control); - sbus_writel(0x05 << 24, &bt->addr); - sbus_writel(0x00 << 24, &bt->control); - sbus_writel(0x06 << 24, &bt->addr); /* overlay plane */ - sbus_writel(0x73 << 24, &bt->control); - sbus_writel(0x07 << 24, &bt->addr); - sbus_writel(0x00 << 24, &bt->control); -} - -static void cg6_chip_init(struct fb_info *info) -{ - struct cg6_par *par = (struct cg6_par *)info->par; - struct cg6_tec __iomem *tec = par->tec; - struct cg6_fbc __iomem *fbc = par->fbc; - struct cg6_thc __iomem *thc = par->thc; - u32 rev, conf, mode; - int i; - - /* Hide the cursor. */ - sbus_writel(CG6_THC_CURSOFF, &thc->thc_cursxy); - - /* Turn off stuff in the Transform Engine. */ - sbus_writel(0, &tec->tec_matrix); - sbus_writel(0, &tec->tec_clip); - sbus_writel(0, &tec->tec_vdc); - - /* Take care of bugs in old revisions. */ - rev = (sbus_readl(par->fhc) >> CG6_FHC_REV_SHIFT) & CG6_FHC_REV_MASK; - if (rev < 5) { - conf = (sbus_readl(par->fhc) & CG6_FHC_RES_MASK) | - CG6_FHC_CPU_68020 | CG6_FHC_TEST | - (11 << CG6_FHC_TEST_X_SHIFT) | - (11 << CG6_FHC_TEST_Y_SHIFT); - if (rev < 2) - conf |= CG6_FHC_DST_DISABLE; - sbus_writel(conf, par->fhc); - } - - /* Set things in the FBC. Bad things appear to happen if we do - * back to back store/loads on the mode register, so copy it - * out instead. */ - mode = sbus_readl(&fbc->mode); - do { - i = sbus_readl(&fbc->s); - } while (i & 0x10000000); - mode &= ~(CG6_FBC_BLIT_MASK | CG6_FBC_MODE_MASK | - CG6_FBC_DRAW_MASK | CG6_FBC_BWRITE0_MASK | - CG6_FBC_BWRITE1_MASK | CG6_FBC_BREAD_MASK | - CG6_FBC_BDISP_MASK); - mode |= (CG6_FBC_BLIT_SRC | CG6_FBC_MODE_COLOR8 | - CG6_FBC_DRAW_RENDER | CG6_FBC_BWRITE0_ENABLE | - CG6_FBC_BWRITE1_DISABLE | CG6_FBC_BREAD_0 | - CG6_FBC_BDISP_0); - sbus_writel(mode, &fbc->mode); - - sbus_writel(0, &fbc->clip); - sbus_writel(0, &fbc->offx); - sbus_writel(0, &fbc->offy); - sbus_writel(0, &fbc->clipminx); - sbus_writel(0, &fbc->clipminy); - sbus_writel(info->var.xres - 1, &fbc->clipmaxx); - sbus_writel(info->var.yres - 1, &fbc->clipmaxy); -} - -static void cg6_unmap_regs(struct platform_device *op, struct fb_info *info, - struct cg6_par *par) -{ - if (par->fbc) - of_iounmap(&op->resource[0], par->fbc, 4096); - if (par->tec) - of_iounmap(&op->resource[0], par->tec, sizeof(struct cg6_tec)); - if (par->thc) - of_iounmap(&op->resource[0], par->thc, sizeof(struct cg6_thc)); - if (par->bt) - of_iounmap(&op->resource[0], par->bt, sizeof(struct bt_regs)); - if (par->fhc) - of_iounmap(&op->resource[0], par->fhc, sizeof(u32)); - - if (info->screen_base) - of_iounmap(&op->resource[0], info->screen_base, - info->fix.smem_len); -} - -static int cg6_probe(struct platform_device *op) -{ - struct device_node *dp = op->dev.of_node; - struct fb_info *info; - struct cg6_par *par; - int linebytes, err; - int dblbuf; - - info = framebuffer_alloc(sizeof(struct cg6_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, 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); - - dblbuf = of_getintprop_default(dp, "dblbuf", 0); - if (dblbuf) - info->fix.smem_len *= 4; - - par->fbc = of_ioremap(&op->resource[0], CG6_FBC_OFFSET, - 4096, "cgsix fbc"); - par->tec = of_ioremap(&op->resource[0], CG6_TEC_OFFSET, - sizeof(struct cg6_tec), "cgsix tec"); - par->thc = of_ioremap(&op->resource[0], CG6_THC_OFFSET, - sizeof(struct cg6_thc), "cgsix thc"); - par->bt = of_ioremap(&op->resource[0], CG6_BROOKTREE_OFFSET, - sizeof(struct bt_regs), "cgsix dac"); - par->fhc = of_ioremap(&op->resource[0], CG6_FHC_OFFSET, - sizeof(u32), "cgsix fhc"); - - info->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_IMAGEBLIT | - FBINFO_HWACCEL_COPYAREA | FBINFO_HWACCEL_FILLRECT | - FBINFO_READS_FAST; - info->fbops = &cg6_ops; - - info->screen_base = of_ioremap(&op->resource[0], CG6_RAM_OFFSET, - info->fix.smem_len, "cgsix ram"); - if (!par->fbc || !par->tec || !par->thc || - !par->bt || !par->fhc || !info->screen_base) - goto out_unmap_regs; - - info->var.accel_flags = FB_ACCELF_TEXT; - - cg6_bt_init(par); - cg6_chip_init(info); - cg6_blank(FB_BLANK_UNBLANK, info); - - if (fb_alloc_cmap(&info->cmap, 256, 0)) - goto out_unmap_regs; - - fb_set_cmap(&info->cmap, info); - cg6_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: CGsix [%s] at %lx:%lx\n", - dp->full_name, info->fix.id, - par->which_io, info->fix.smem_start); - - return 0; - -out_dealloc_cmap: - fb_dealloc_cmap(&info->cmap); - -out_unmap_regs: - cg6_unmap_regs(op, info, par); - framebuffer_release(info); - -out_err: - return err; -} - -static int cg6_remove(struct platform_device *op) -{ - struct fb_info *info = dev_get_drvdata(&op->dev); - struct cg6_par *par = info->par; - - unregister_framebuffer(info); - fb_dealloc_cmap(&info->cmap); - - cg6_unmap_regs(op, info, par); - - framebuffer_release(info); - - return 0; -} - -static const struct of_device_id cg6_match[] = { - { - .name = "cgsix", - }, - { - .name = "cgthree+", - }, - {}, -}; -MODULE_DEVICE_TABLE(of, cg6_match); - -static struct platform_driver cg6_driver = { - .driver = { - .name = "cg6", - .owner = THIS_MODULE, - .of_match_table = cg6_match, - }, - .probe = cg6_probe, - .remove = cg6_remove, -}; - -static int __init cg6_init(void) -{ - if (fb_get_options("cg6fb", NULL)) - return -ENODEV; - - return platform_driver_register(&cg6_driver); -} - -static void __exit cg6_exit(void) -{ - platform_driver_unregister(&cg6_driver); -} - -module_init(cg6_init); -module_exit(cg6_exit); - -MODULE_DESCRIPTION("framebuffer driver for CGsix chipsets"); -MODULE_AUTHOR("David S. Miller <davem@davemloft.net>"); -MODULE_VERSION("2.0"); -MODULE_LICENSE("GPL"); |