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 <valentin.sitdikov@siemens.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/pci.h>
20 #if defined(CONFIG_OF)
21 #include <linux/of_platform.h>
23 #include "mb862xxfb.h"
24 #include "mb862xx_reg.h"
25 #include "mb862xxfb_accel.h"
27 static void mb862xxfb_write_fifo(u32 count, u32 *data, struct fb_info *info)
29 struct mb862xxfb_par *par = info->par;
33 while (total < count) {
35 outreg(geo, GDC_GEO_REG_INPUT_FIFO, data[total]);
39 free = (u32) inreg(draw, GDC_REG_FIFO_COUNT);
44 static void mb86290fb_copyarea(struct fb_info *info,
45 const struct fb_copyarea *area)
49 cmd[0] = (GDC_TYPE_SETREGISTER << 24) | (1 << 16) | GDC_REG_MODE_BITMAP;
50 /* Set raster operation */
51 cmd[1] = (2 << 7) | (GDC_ROP_COPY << 9);
52 cmd[2] = GDC_TYPE_BLTCOPYP << 24;
54 if (area->sx >= area->dx && area->sy >= area->dy)
55 cmd[2] |= GDC_CMD_BLTCOPY_TOP_LEFT << 16;
56 else if (area->sx >= area->dx && area->sy <= area->dy)
57 cmd[2] |= GDC_CMD_BLTCOPY_BOTTOM_LEFT << 16;
58 else if (area->sx <= area->dx && area->sy >= area->dy)
59 cmd[2] |= GDC_CMD_BLTCOPY_TOP_RIGHT << 16;
61 cmd[2] |= GDC_CMD_BLTCOPY_BOTTOM_RIGHT << 16;
63 cmd[3] = (area->sy << 16) | area->sx;
64 cmd[4] = (area->dy << 16) | area->dx;
65 cmd[5] = (area->height << 16) | area->width;
66 mb862xxfb_write_fifo(6, cmd, info);
70 * Fill in the cmd array /GDC FIFO commands/ to draw a 1bit image.
71 * Make sure cmd has enough room!
73 static void mb86290fb_imageblit1(u32 *cmd, u16 step, u16 dx, u16 dy,
74 u16 width, u16 height, u32 fgcolor,
75 u32 bgcolor, const struct fb_image *image,
79 unsigned const char *line;
82 /* set colors and raster operation regs */
83 cmd[0] = (GDC_TYPE_SETREGISTER << 24) | (1 << 16) | GDC_REG_MODE_BITMAP;
84 /* Set raster operation */
85 cmd[1] = (2 << 7) | (GDC_ROP_COPY << 9);
87 (GDC_TYPE_SETCOLORREGISTER << 24) | (GDC_CMD_BODY_FORE_COLOR << 16);
90 (GDC_TYPE_SETCOLORREGISTER << 24) | (GDC_CMD_BODY_BACK_COLOR << 16);
95 bytes = (image->width + 7) >> 3;
98 cmd[6] = (GDC_TYPE_DRAWBITMAPP << 24) |
99 (GDC_CMD_BITMAP << 16) | (2 + (step * height));
100 cmd[7] = (dy << 16) | dx;
101 cmd[8] = (height << 16) | width;
104 memcpy(&cmd[9 + i * step], line, step << 2);
105 #ifdef __LITTLE_ENDIAN
108 for (k = 0; k < step; k++)
109 cmd[9 + i * step + k] =
110 cpu_to_be32(cmd[9 + i * step + k]);
119 * Fill in the cmd array /GDC FIFO commands/ to draw a 8bit image.
120 * Make sure cmd has enough room!
122 static void mb86290fb_imageblit8(u32 *cmd, u16 step, u16 dx, u16 dy,
123 u16 width, u16 height, u32 fgcolor,
124 u32 bgcolor, const struct fb_image *image,
125 struct fb_info *info)
128 unsigned const char *line, *ptr;
131 cmd[0] = (GDC_TYPE_DRAWBITMAPP << 24) |
132 (GDC_CMD_BLT_DRAW << 16) | (2 + (height * step));
133 cmd[1] = (dy << 16) | dx;
134 cmd[2] = (height << 16) | width;
137 line = ptr = image->data;
138 bytes = image->width;
142 for (j = 0; j < step; j++) {
143 cmd[3 + i * step + j] =
144 (((u32 *) (info->pseudo_palette))[*ptr]) & 0xffff;
146 cmd[3 + i * step + j] |=
148 pseudo_palette))[*ptr]) & 0xffff) << 16;
158 * Fill in the cmd array /GDC FIFO commands/ to draw a 16bit image.
159 * Make sure cmd has enough room!
161 static void mb86290fb_imageblit16(u32 *cmd, u16 step, u16 dx, u16 dy,
162 u16 width, u16 height, u32 fgcolor,
163 u32 bgcolor, const struct fb_image *image,
164 struct fb_info *info)
167 unsigned const char *line;
172 bytes = image->width << 1;
174 cmd[0] = (GDC_TYPE_DRAWBITMAPP << 24) |
175 (GDC_CMD_BLT_DRAW << 16) | (2 + step * height);
176 cmd[1] = (dy << 16) | dx;
177 cmd[2] = (height << 16) | width;
180 memcpy(&cmd[3 + i * step], line, step);
186 static void mb86290fb_imageblit(struct fb_info *info,
187 const struct fb_image *image)
191 void (*cmdfn) (u32 *, u16, u16, u16, u16, u16, u32, u32,
192 const struct fb_image *, struct fb_info *) = NULL;
194 u32 fgcolor = 0, bgcolor = 0;
197 u16 width = image->width, height = image->height;
198 u16 dx = image->dx, dy = image->dy;
199 int x2, y2, vxres, vyres;
201 mdr = (GDC_ROP_COPY << 9);
202 x2 = image->dx + image->width;
203 y2 = image->dy + image->height;
204 vxres = info->var.xres_virtual;
205 vyres = info->var.yres_virtual;
211 switch (image->depth) {
213 step = (width + 31) >> 5;
214 cmdlen = 9 + height * step;
215 cmdfn = mb86290fb_imageblit1;
216 if (info->fix.visual == FB_VISUAL_TRUECOLOR ||
217 info->fix.visual == FB_VISUAL_DIRECTCOLOR) {
219 ((u32 *) (info->pseudo_palette))[image->fg_color];
221 ((u32 *) (info->pseudo_palette))[image->bg_color];
223 fgcolor = image->fg_color;
224 bgcolor = image->bg_color;
230 step = (width + 1) >> 1;
231 cmdlen = 3 + height * step;
232 cmdfn = mb86290fb_imageblit8;
236 step = (width + 1) >> 1;
237 cmdlen = 3 + height * step;
238 cmdfn = mb86290fb_imageblit16;
242 cfb_imageblit(info, image);
246 cmd = kmalloc(cmdlen * 4, GFP_DMA);
248 return cfb_imageblit(info, image);
249 cmdfn(cmd, step, dx, dy, width, height, fgcolor, bgcolor, image, info);
250 mb862xxfb_write_fifo(cmdlen, cmd, info);
254 static void mb86290fb_fillrect(struct fb_info *info,
255 const struct fb_fillrect *rect)
258 u32 x2, y2, vxres, vyres, height, width, fg;
261 vxres = info->var.xres_virtual;
262 vyres = info->var.yres_virtual;
264 if (!rect->width || !rect->height || rect->dx > vxres
268 /* We could use hardware clipping but on many cards you get around
269 * hardware clipping by writing to framebuffer directly. */
270 x2 = rect->dx + rect->width;
271 y2 = rect->dy + rect->height;
274 width = x2 - rect->dx;
275 height = y2 - rect->dy;
276 if (info->fix.visual == FB_VISUAL_TRUECOLOR ||
277 info->fix.visual == FB_VISUAL_DIRECTCOLOR)
278 fg = ((u32 *) (info->pseudo_palette))[rect->color];
285 /* Set raster operation */
286 cmd[1] = (2 << 7) | (GDC_ROP_XOR << 9);
290 /* Set raster operation */
291 cmd[1] = (2 << 7) | (GDC_ROP_COPY << 9);
296 cmd[0] = (GDC_TYPE_SETREGISTER << 24) | (1 << 16) | GDC_REG_MODE_BITMAP;
297 /* cmd[1] set earlier */
299 (GDC_TYPE_SETCOLORREGISTER << 24) | (GDC_CMD_BODY_FORE_COLOR << 16);
301 cmd[4] = (GDC_TYPE_DRAWRECTP << 24) | (GDC_CMD_BLT_FILL << 16);
302 cmd[5] = (rect->dy << 16) | (rect->dx);
303 cmd[6] = (height << 16) | width;
305 mb862xxfb_write_fifo(7, cmd, info);
308 void mb862xxfb_init_accel(struct fb_info *info, int xres)
310 struct mb862xxfb_par *par = info->par;
312 if (info->var.bits_per_pixel == 32) {
313 info->fbops->fb_fillrect = cfb_fillrect;
314 info->fbops->fb_copyarea = cfb_copyarea;
315 info->fbops->fb_imageblit = cfb_imageblit;
317 outreg(disp, GC_L0EM, 3);
318 info->fbops->fb_fillrect = mb86290fb_fillrect;
319 info->fbops->fb_copyarea = mb86290fb_copyarea;
320 info->fbops->fb_imageblit = mb86290fb_imageblit;
322 outreg(draw, GDC_REG_DRAW_BASE, 0);
323 outreg(draw, GDC_REG_MODE_MISC, 0x8000);
324 outreg(draw, GDC_REG_X_RESOLUTION, xres);
327 FBINFO_HWACCEL_COPYAREA | FBINFO_HWACCEL_FILLRECT |
328 FBINFO_HWACCEL_IMAGEBLIT;
329 info->fix.accel = 0xff; /*FIXME: add right define */
331 EXPORT_SYMBOL(mb862xxfb_init_accel);