diff options
author | Tomi Valkeinen <tomi.valkeinen@ti.com> | 2014-02-13 13:31:38 (GMT) |
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committer | Tomi Valkeinen <tomi.valkeinen@ti.com> | 2014-04-17 05:10:19 (GMT) |
commit | f7018c21350204c4cf628462f229d44d03545254 (patch) | |
tree | 408787177164cf51cc06f7aabdb04fcff8d2b6aa /drivers/video/i810/i810_accel.c | |
parent | c26ef3eb3c11274bad1b64498d0a134f85755250 (diff) | |
download | linux-f7018c21350204c4cf628462f229d44d03545254.tar.xz |
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/i810/i810_accel.c')
-rw-r--r-- | drivers/video/i810/i810_accel.c | 456 |
1 files changed, 0 insertions, 456 deletions
diff --git a/drivers/video/i810/i810_accel.c b/drivers/video/i810/i810_accel.c deleted file mode 100644 index 7672d2e..0000000 --- a/drivers/video/i810/i810_accel.c +++ /dev/null @@ -1,456 +0,0 @@ -/*-*- linux-c -*- - * linux/drivers/video/i810_accel.c -- Hardware Acceleration - * - * Copyright (C) 2001 Antonino Daplas<adaplas@pol.net> - * All Rights Reserved - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file COPYING in the main directory of this archive for - * more details. - */ -#include <linux/kernel.h> -#include <linux/string.h> -#include <linux/fb.h> - -#include "i810_regs.h" -#include "i810.h" -#include "i810_main.h" - -static u32 i810fb_rop[] = { - COLOR_COPY_ROP, /* ROP_COPY */ - XOR_ROP /* ROP_XOR */ -}; - -/* Macros */ -#define PUT_RING(n) { \ - i810_writel(par->cur_tail, par->iring.virtual, n); \ - par->cur_tail += 4; \ - par->cur_tail &= RING_SIZE_MASK; \ -} - -extern void flush_cache(void); - -/************************************************************/ - -/* BLT Engine Routines */ -static inline void i810_report_error(u8 __iomem *mmio) -{ - printk("IIR : 0x%04x\n" - "EIR : 0x%04x\n" - "PGTBL_ER: 0x%04x\n" - "IPEIR : 0x%04x\n" - "IPEHR : 0x%04x\n", - i810_readw(IIR, mmio), - i810_readb(EIR, mmio), - i810_readl(PGTBL_ER, mmio), - i810_readl(IPEIR, mmio), - i810_readl(IPEHR, mmio)); -} - -/** - * wait_for_space - check ring buffer free space - * @space: amount of ringbuffer space needed in bytes - * @par: pointer to i810fb_par structure - * - * DESCRIPTION: - * The function waits until a free space from the ringbuffer - * is available - */ -static inline int wait_for_space(struct fb_info *info, u32 space) -{ - struct i810fb_par *par = info->par; - u32 head, count = WAIT_COUNT, tail; - u8 __iomem *mmio = par->mmio_start_virtual; - - tail = par->cur_tail; - while (count--) { - head = i810_readl(IRING + 4, mmio) & RBUFFER_HEAD_MASK; - if ((tail == head) || - (tail > head && - (par->iring.size - tail + head) >= space) || - (tail < head && (head - tail) >= space)) { - return 0; - } - } - printk("ringbuffer lockup!!!\n"); - i810_report_error(mmio); - par->dev_flags |= LOCKUP; - info->pixmap.scan_align = 1; - return 1; -} - -/** - * wait_for_engine_idle - waits for all hardware engines to finish - * @par: pointer to i810fb_par structure - * - * DESCRIPTION: - * This waits for lring(0), iring(1), and batch(3), etc to finish and - * waits until ringbuffer is empty. - */ -static inline int wait_for_engine_idle(struct fb_info *info) -{ - struct i810fb_par *par = info->par; - u8 __iomem *mmio = par->mmio_start_virtual; - int count = WAIT_COUNT; - - if (wait_for_space(info, par->iring.size)) /* flush */ - return 1; - - while((i810_readw(INSTDONE, mmio) & 0x7B) != 0x7B && --count); - if (count) return 0; - - printk("accel engine lockup!!!\n"); - printk("INSTDONE: 0x%04x\n", i810_readl(INSTDONE, mmio)); - i810_report_error(mmio); - par->dev_flags |= LOCKUP; - info->pixmap.scan_align = 1; - return 1; -} - -/* begin_iring - prepares the ringbuffer - * @space: length of sequence in dwords - * @par: pointer to i810fb_par structure - * - * DESCRIPTION: - * Checks/waits for sufficient space in ringbuffer of size - * space. Returns the tail of the buffer - */ -static inline u32 begin_iring(struct fb_info *info, u32 space) -{ - struct i810fb_par *par = info->par; - - if (par->dev_flags & ALWAYS_SYNC) - wait_for_engine_idle(info); - return wait_for_space(info, space); -} - -/** - * end_iring - advances the buffer - * @par: pointer to i810fb_par structure - * - * DESCRIPTION: - * This advances the tail of the ringbuffer, effectively - * beginning the execution of the graphics instruction sequence. - */ -static inline void end_iring(struct i810fb_par *par) -{ - u8 __iomem *mmio = par->mmio_start_virtual; - - i810_writel(IRING, mmio, par->cur_tail); -} - -/** - * source_copy_blit - BLIT transfer operation - * @dwidth: width of rectangular graphics data - * @dheight: height of rectangular graphics data - * @dpitch: bytes per line of destination buffer - * @xdir: direction of copy (left to right or right to left) - * @src: address of first pixel to read from - * @dest: address of first pixel to write to - * @from: source address - * @where: destination address - * @rop: raster operation - * @blit_bpp: pixel format which can be different from the - * framebuffer's pixelformat - * @par: pointer to i810fb_par structure - * - * DESCRIPTION: - * This is a BLIT operation typically used when doing - * a 'Copy and Paste' - */ -static inline void source_copy_blit(int dwidth, int dheight, int dpitch, - int xdir, int src, int dest, int rop, - int blit_bpp, struct fb_info *info) -{ - struct i810fb_par *par = info->par; - - if (begin_iring(info, 24 + IRING_PAD)) return; - - PUT_RING(BLIT | SOURCE_COPY_BLIT | 4); - PUT_RING(xdir | rop << 16 | dpitch | DYN_COLOR_EN | blit_bpp); - PUT_RING(dheight << 16 | dwidth); - PUT_RING(dest); - PUT_RING(dpitch); - PUT_RING(src); - - end_iring(par); -} - -/** - * color_blit - solid color BLIT operation - * @width: width of destination - * @height: height of destination - * @pitch: pixels per line of the buffer - * @dest: address of first pixel to write to - * @where: destination - * @rop: raster operation - * @what: color to transfer - * @blit_bpp: pixel format which can be different from the - * framebuffer's pixelformat - * @par: pointer to i810fb_par structure - * - * DESCRIPTION: - * A BLIT operation which can be used for color fill/rectangular fill - */ -static inline void color_blit(int width, int height, int pitch, int dest, - int rop, int what, int blit_bpp, - struct fb_info *info) -{ - struct i810fb_par *par = info->par; - - if (begin_iring(info, 24 + IRING_PAD)) return; - - PUT_RING(BLIT | COLOR_BLT | 3); - PUT_RING(rop << 16 | pitch | SOLIDPATTERN | DYN_COLOR_EN | blit_bpp); - PUT_RING(height << 16 | width); - PUT_RING(dest); - PUT_RING(what); - PUT_RING(NOP); - - end_iring(par); -} - -/** - * mono_src_copy_imm_blit - color expand from system memory to framebuffer - * @dwidth: width of destination - * @dheight: height of destination - * @dpitch: pixels per line of the buffer - * @dsize: size of bitmap in double words - * @dest: address of first byte of pixel; - * @rop: raster operation - * @blit_bpp: pixelformat to use which can be different from the - * framebuffer's pixelformat - * @src: address of image data - * @bg: backgound color - * @fg: forground color - * @par: pointer to i810fb_par structure - * - * DESCRIPTION: - * A color expand operation where the source data is placed in the - * ringbuffer itself. Useful for drawing text. - * - * REQUIREMENT: - * The end of a scanline must be padded to the next word. - */ -static inline void mono_src_copy_imm_blit(int dwidth, int dheight, int dpitch, - int dsize, int blit_bpp, int rop, - int dest, const u32 *src, int bg, - int fg, struct fb_info *info) -{ - struct i810fb_par *par = info->par; - - if (begin_iring(info, 24 + (dsize << 2) + IRING_PAD)) return; - - PUT_RING(BLIT | MONO_SOURCE_COPY_IMMEDIATE | (4 + dsize)); - PUT_RING(DYN_COLOR_EN | blit_bpp | rop << 16 | dpitch); - PUT_RING(dheight << 16 | dwidth); - PUT_RING(dest); - PUT_RING(bg); - PUT_RING(fg); - while (dsize--) - PUT_RING(*src++); - - end_iring(par); -} - -static inline void load_front(int offset, struct fb_info *info) -{ - struct i810fb_par *par = info->par; - - if (begin_iring(info, 8 + IRING_PAD)) return; - - PUT_RING(PARSER | FLUSH); - PUT_RING(NOP); - - end_iring(par); - - if (begin_iring(info, 8 + IRING_PAD)) return; - - PUT_RING(PARSER | FRONT_BUFFER | ((par->pitch >> 3) << 8)); - PUT_RING((par->fb.offset << 12) + offset); - - end_iring(par); -} - -/** - * i810fb_iring_enable - enables/disables the ringbuffer - * @mode: enable or disable - * @par: pointer to i810fb_par structure - * - * DESCRIPTION: - * Enables or disables the ringbuffer, effectively enabling or - * disabling the instruction/acceleration engine. - */ -static inline void i810fb_iring_enable(struct i810fb_par *par, u32 mode) -{ - u32 tmp; - u8 __iomem *mmio = par->mmio_start_virtual; - - tmp = i810_readl(IRING + 12, mmio); - if (mode == OFF) - tmp &= ~1; - else - tmp |= 1; - flush_cache(); - i810_writel(IRING + 12, mmio, tmp); -} - -void i810fb_fillrect(struct fb_info *info, const struct fb_fillrect *rect) -{ - struct i810fb_par *par = info->par; - u32 dx, dy, width, height, dest, rop = 0, color = 0; - - if (!info->var.accel_flags || par->dev_flags & LOCKUP || - par->depth == 4) { - cfb_fillrect(info, rect); - return; - } - - if (par->depth == 1) - color = rect->color; - else - color = ((u32 *) (info->pseudo_palette))[rect->color]; - - rop = i810fb_rop[rect->rop]; - - dx = rect->dx * par->depth; - width = rect->width * par->depth; - dy = rect->dy; - height = rect->height; - - dest = info->fix.smem_start + (dy * info->fix.line_length) + dx; - color_blit(width, height, info->fix.line_length, dest, rop, color, - par->blit_bpp, info); -} - -void i810fb_copyarea(struct fb_info *info, const struct fb_copyarea *region) -{ - struct i810fb_par *par = info->par; - u32 sx, sy, dx, dy, pitch, width, height, src, dest, xdir; - - if (!info->var.accel_flags || par->dev_flags & LOCKUP || - par->depth == 4) { - cfb_copyarea(info, region); - return; - } - - dx = region->dx * par->depth; - sx = region->sx * par->depth; - width = region->width * par->depth; - sy = region->sy; - dy = region->dy; - height = region->height; - - if (dx <= sx) { - xdir = INCREMENT; - } - else { - xdir = DECREMENT; - sx += width - 1; - dx += width - 1; - } - if (dy <= sy) { - pitch = info->fix.line_length; - } - else { - pitch = (-(info->fix.line_length)) & 0xFFFF; - sy += height - 1; - dy += height - 1; - } - src = info->fix.smem_start + (sy * info->fix.line_length) + sx; - dest = info->fix.smem_start + (dy * info->fix.line_length) + dx; - - source_copy_blit(width, height, pitch, xdir, src, dest, - PAT_COPY_ROP, par->blit_bpp, info); -} - -void i810fb_imageblit(struct fb_info *info, const struct fb_image *image) -{ - struct i810fb_par *par = info->par; - u32 fg = 0, bg = 0, size, dst; - - if (!info->var.accel_flags || par->dev_flags & LOCKUP || - par->depth == 4 || image->depth != 1) { - cfb_imageblit(info, image); - return; - } - - switch (info->var.bits_per_pixel) { - case 8: - fg = image->fg_color; - bg = image->bg_color; - break; - case 16: - case 24: - fg = ((u32 *)(info->pseudo_palette))[image->fg_color]; - bg = ((u32 *)(info->pseudo_palette))[image->bg_color]; - break; - } - - dst = info->fix.smem_start + (image->dy * info->fix.line_length) + - (image->dx * par->depth); - - size = (image->width+7)/8 + 1; - size &= ~1; - size *= image->height; - size += 7; - size &= ~7; - mono_src_copy_imm_blit(image->width * par->depth, - image->height, info->fix.line_length, - size/4, par->blit_bpp, - PAT_COPY_ROP, dst, (u32 *) image->data, - bg, fg, info); -} - -int i810fb_sync(struct fb_info *info) -{ - struct i810fb_par *par = info->par; - - if (!info->var.accel_flags || par->dev_flags & LOCKUP) - return 0; - - return wait_for_engine_idle(info); -} - -void i810fb_load_front(u32 offset, struct fb_info *info) -{ - struct i810fb_par *par = info->par; - u8 __iomem *mmio = par->mmio_start_virtual; - - if (!info->var.accel_flags || par->dev_flags & LOCKUP) - i810_writel(DPLYBASE, mmio, par->fb.physical + offset); - else - load_front(offset, info); -} - -/** - * i810fb_init_ringbuffer - initialize the ringbuffer - * @par: pointer to i810fb_par structure - * - * DESCRIPTION: - * Initializes the ringbuffer by telling the device the - * size and location of the ringbuffer. It also sets - * the head and tail pointers = 0 - */ -void i810fb_init_ringbuffer(struct fb_info *info) -{ - struct i810fb_par *par = info->par; - u32 tmp1, tmp2; - u8 __iomem *mmio = par->mmio_start_virtual; - - wait_for_engine_idle(info); - i810fb_iring_enable(par, OFF); - i810_writel(IRING, mmio, 0); - i810_writel(IRING + 4, mmio, 0); - par->cur_tail = 0; - - tmp2 = i810_readl(IRING + 8, mmio) & ~RBUFFER_START_MASK; - tmp1 = par->iring.physical; - i810_writel(IRING + 8, mmio, tmp2 | tmp1); - - tmp1 = i810_readl(IRING + 12, mmio); - tmp1 &= ~RBUFFER_SIZE_MASK; - tmp2 = (par->iring.size - I810_PAGESIZE) & RBUFFER_SIZE_MASK; - i810_writel(IRING + 12, mmio, tmp1 | tmp2); - i810fb_iring_enable(par, ON); -} |