2 * drivers/mb862xx/mb862xxfb_accel.c
4 * Fujitsu Carmine/Coral-P(A)/Lime framebuffer driver acceleration support
6 * (C) 2007 Alexander Shishkin <virtuoso@slind.org>
7 * (C) 2009 Valentin Sitdikov <v.sitdikov@gmail.com>
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License version 2 as
12 * published by the Free Software Foundation.
16 #include <linux/delay.h>
17 #include <linux/init.h>
18 #include <linux/interrupt.h>
19 #include <linux/module.h>
20 #include <linux/pci.h>
21 #include <linux/slab.h>
22 #if defined(CONFIG_OF)
23 #include <linux/of_platform.h>
25 #include "mb862xxfb.h"
26 #include "mb862xx_reg.h"
27 #include "mb862xxfb_accel.h"
29 static void mb862xxfb_write_fifo(u32 count, u32 *data, struct fb_info *info)
31 struct mb862xxfb_par *par = info->par;
35 while (total < count) {
37 outreg(geo, GDC_GEO_REG_INPUT_FIFO, data[total]);
41 free = (u32) inreg(draw, GDC_REG_FIFO_COUNT);
46 static void mb86290fb_copyarea(struct fb_info *info,
47 const struct fb_copyarea *area)
51 cmd[0] = (GDC_TYPE_SETREGISTER << 24) | (1 << 16) | GDC_REG_MODE_BITMAP;
52 /* Set raster operation */
53 cmd[1] = (2 << 7) | (GDC_ROP_COPY << 9);
54 cmd[2] = GDC_TYPE_BLTCOPYP << 24;
56 if (area->sx >= area->dx && area->sy >= area->dy)
57 cmd[2] |= GDC_CMD_BLTCOPY_TOP_LEFT << 16;
58 else if (area->sx >= area->dx && area->sy <= area->dy)
59 cmd[2] |= GDC_CMD_BLTCOPY_BOTTOM_LEFT << 16;
60 else if (area->sx <= area->dx && area->sy >= area->dy)
61 cmd[2] |= GDC_CMD_BLTCOPY_TOP_RIGHT << 16;
63 cmd[2] |= GDC_CMD_BLTCOPY_BOTTOM_RIGHT << 16;
65 cmd[3] = (area->sy << 16) | area->sx;
66 cmd[4] = (area->dy << 16) | area->dx;
67 cmd[5] = (area->height << 16) | area->width;
68 mb862xxfb_write_fifo(6, cmd, info);
72 * Fill in the cmd array /GDC FIFO commands/ to draw a 1bit image.
73 * Make sure cmd has enough room!
75 static void mb86290fb_imageblit1(u32 *cmd, u16 step, u16 dx, u16 dy,
76 u16 width, u16 height, u32 fgcolor,
77 u32 bgcolor, const struct fb_image *image,
81 unsigned const char *line;
84 /* set colors and raster operation regs */
85 cmd[0] = (GDC_TYPE_SETREGISTER << 24) | (1 << 16) | GDC_REG_MODE_BITMAP;
86 /* Set raster operation */
87 cmd[1] = (2 << 7) | (GDC_ROP_COPY << 9);
89 (GDC_TYPE_SETCOLORREGISTER << 24) | (GDC_CMD_BODY_FORE_COLOR << 16);
92 (GDC_TYPE_SETCOLORREGISTER << 24) | (GDC_CMD_BODY_BACK_COLOR << 16);
97 bytes = (image->width + 7) >> 3;
100 cmd[6] = (GDC_TYPE_DRAWBITMAPP << 24) |
101 (GDC_CMD_BITMAP << 16) | (2 + (step * height));
102 cmd[7] = (dy << 16) | dx;
103 cmd[8] = (height << 16) | width;
106 memcpy(&cmd[9 + i * step], line, step << 2);
107 #ifdef __LITTLE_ENDIAN
110 for (k = 0; k < step; k++)
111 cmd[9 + i * step + k] =
112 cpu_to_be32(cmd[9 + i * step + k]);
121 * Fill in the cmd array /GDC FIFO commands/ to draw a 8bit image.
122 * Make sure cmd has enough room!
124 static void mb86290fb_imageblit8(u32 *cmd, u16 step, u16 dx, u16 dy,
125 u16 width, u16 height, u32 fgcolor,
126 u32 bgcolor, const struct fb_image *image,
127 struct fb_info *info)
130 unsigned const char *line, *ptr;
133 cmd[0] = (GDC_TYPE_DRAWBITMAPP << 24) |
134 (GDC_CMD_BLT_DRAW << 16) | (2 + (height * step));
135 cmd[1] = (dy << 16) | dx;
136 cmd[2] = (height << 16) | width;
139 line = ptr = image->data;
140 bytes = image->width;
144 for (j = 0; j < step; j++) {
145 cmd[3 + i * step + j] =
146 (((u32 *) (info->pseudo_palette))[*ptr]) & 0xffff;
148 cmd[3 + i * step + j] |=
150 pseudo_palette))[*ptr]) & 0xffff) << 16;
160 * Fill in the cmd array /GDC FIFO commands/ to draw a 16bit image.
161 * Make sure cmd has enough room!
163 static void mb86290fb_imageblit16(u32 *cmd, u16 step, u16 dx, u16 dy,
164 u16 width, u16 height, u32 fgcolor,
165 u32 bgcolor, const struct fb_image *image,
166 struct fb_info *info)
169 unsigned const char *line;
174 bytes = image->width << 1;
176 cmd[0] = (GDC_TYPE_DRAWBITMAPP << 24) |
177 (GDC_CMD_BLT_DRAW << 16) | (2 + step * height);
178 cmd[1] = (dy << 16) | dx;
179 cmd[2] = (height << 16) | width;
182 memcpy(&cmd[3 + i * step], line, step);
188 static void mb86290fb_imageblit(struct fb_info *info,
189 const struct fb_image *image)
193 void (*cmdfn) (u32 *, u16, u16, u16, u16, u16, u32, u32,
194 const struct fb_image *, struct fb_info *) = NULL;
196 u32 fgcolor = 0, bgcolor = 0;
199 u16 width = image->width, height = image->height;
200 u16 dx = image->dx, dy = image->dy;
201 int x2, y2, vxres, vyres;
203 mdr = (GDC_ROP_COPY << 9);
204 x2 = image->dx + image->width;
205 y2 = image->dy + image->height;
206 vxres = info->var.xres_virtual;
207 vyres = info->var.yres_virtual;
213 switch (image->depth) {
215 step = (width + 31) >> 5;
216 cmdlen = 9 + height * step;
217 cmdfn = mb86290fb_imageblit1;
218 if (info->fix.visual == FB_VISUAL_TRUECOLOR ||
219 info->fix.visual == FB_VISUAL_DIRECTCOLOR) {
221 ((u32 *) (info->pseudo_palette))[image->fg_color];
223 ((u32 *) (info->pseudo_palette))[image->bg_color];
225 fgcolor = image->fg_color;
226 bgcolor = image->bg_color;
232 step = (width + 1) >> 1;
233 cmdlen = 3 + height * step;
234 cmdfn = mb86290fb_imageblit8;
238 step = (width + 1) >> 1;
239 cmdlen = 3 + height * step;
240 cmdfn = mb86290fb_imageblit16;
244 cfb_imageblit(info, image);
248 cmd = kmalloc(cmdlen * 4, GFP_DMA);
250 return cfb_imageblit(info, image);
251 cmdfn(cmd, step, dx, dy, width, height, fgcolor, bgcolor, image, info);
252 mb862xxfb_write_fifo(cmdlen, cmd, info);
256 static void mb86290fb_fillrect(struct fb_info *info,
257 const struct fb_fillrect *rect)
260 u32 x2, y2, vxres, vyres, height, width, fg;
263 vxres = info->var.xres_virtual;
264 vyres = info->var.yres_virtual;
266 if (!rect->width || !rect->height || rect->dx > vxres
270 /* We could use hardware clipping but on many cards you get around
271 * hardware clipping by writing to framebuffer directly. */
272 x2 = rect->dx + rect->width;
273 y2 = rect->dy + rect->height;
276 width = x2 - rect->dx;
277 height = y2 - rect->dy;
278 if (info->fix.visual == FB_VISUAL_TRUECOLOR ||
279 info->fix.visual == FB_VISUAL_DIRECTCOLOR)
280 fg = ((u32 *) (info->pseudo_palette))[rect->color];
287 /* Set raster operation */
288 cmd[1] = (2 << 7) | (GDC_ROP_XOR << 9);
292 /* Set raster operation */
293 cmd[1] = (2 << 7) | (GDC_ROP_COPY << 9);
298 cmd[0] = (GDC_TYPE_SETREGISTER << 24) | (1 << 16) | GDC_REG_MODE_BITMAP;
299 /* cmd[1] set earlier */
301 (GDC_TYPE_SETCOLORREGISTER << 24) | (GDC_CMD_BODY_FORE_COLOR << 16);
303 cmd[4] = (GDC_TYPE_DRAWRECTP << 24) | (GDC_CMD_BLT_FILL << 16);
304 cmd[5] = (rect->dy << 16) | (rect->dx);
305 cmd[6] = (height << 16) | width;
307 mb862xxfb_write_fifo(7, cmd, info);
310 void mb862xxfb_init_accel(struct fb_info *info, int xres)
312 struct mb862xxfb_par *par = info->par;
314 if (info->var.bits_per_pixel == 32) {
315 info->fbops->fb_fillrect = cfb_fillrect;
316 info->fbops->fb_copyarea = cfb_copyarea;
317 info->fbops->fb_imageblit = cfb_imageblit;
319 outreg(disp, GC_L0EM, 3);
320 info->fbops->fb_fillrect = mb86290fb_fillrect;
321 info->fbops->fb_copyarea = mb86290fb_copyarea;
322 info->fbops->fb_imageblit = mb86290fb_imageblit;
324 outreg(draw, GDC_REG_DRAW_BASE, 0);
325 outreg(draw, GDC_REG_MODE_MISC, 0x8000);
326 outreg(draw, GDC_REG_X_RESOLUTION, xres);
329 FBINFO_HWACCEL_COPYAREA | FBINFO_HWACCEL_FILLRECT |
330 FBINFO_HWACCEL_IMAGEBLIT;
331 info->fix.accel = 0xff; /*FIXME: add right define */
333 EXPORT_SYMBOL(mb862xxfb_init_accel);
335 MODULE_LICENSE("GPL v2");