--- /dev/null
+/*
+ * drivers/mb862xx/mb862xxfb_accel.c
+ *
+ * Fujitsu Carmine/Coral-P(A)/Lime framebuffer driver acceleration support
+ *
+ * (C) 2007 Alexander Shishkin <virtuoso@slind.org>
+ * (C) 2009 Valentin Sitdikov <v.sitdikov@gmail.com>
+ * (C) 2009 Siemens AG
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+#include <linux/fb.h>
+#include <linux/delay.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <linux/slab.h>
+#if defined(CONFIG_OF)
+#include <linux/of_platform.h>
+#endif
+#include "mb862xxfb.h"
+#include "mb862xx_reg.h"
+#include "mb862xxfb_accel.h"
+
+static void mb862xxfb_write_fifo(u32 count, u32 *data, struct fb_info *info)
+{
+ struct mb862xxfb_par *par = info->par;
+ static u32 free;
+
+ u32 total = 0;
+ while (total < count) {
+ if (free) {
+ outreg(geo, GDC_GEO_REG_INPUT_FIFO, data[total]);
+ total++;
+ free--;
+ } else {
+ free = (u32) inreg(draw, GDC_REG_FIFO_COUNT);
+ }
+ }
+}
+
+static void mb86290fb_copyarea(struct fb_info *info,
+ const struct fb_copyarea *area)
+{
+ __u32 cmd[6];
+
+ cmd[0] = (GDC_TYPE_SETREGISTER << 24) | (1 << 16) | GDC_REG_MODE_BITMAP;
+ /* Set raster operation */
+ cmd[1] = (2 << 7) | (GDC_ROP_COPY << 9);
+ cmd[2] = GDC_TYPE_BLTCOPYP << 24;
+
+ if (area->sx >= area->dx && area->sy >= area->dy)
+ cmd[2] |= GDC_CMD_BLTCOPY_TOP_LEFT << 16;
+ else if (area->sx >= area->dx && area->sy <= area->dy)
+ cmd[2] |= GDC_CMD_BLTCOPY_BOTTOM_LEFT << 16;
+ else if (area->sx <= area->dx && area->sy >= area->dy)
+ cmd[2] |= GDC_CMD_BLTCOPY_TOP_RIGHT << 16;
+ else
+ cmd[2] |= GDC_CMD_BLTCOPY_BOTTOM_RIGHT << 16;
+
+ cmd[3] = (area->sy << 16) | area->sx;
+ cmd[4] = (area->dy << 16) | area->dx;
+ cmd[5] = (area->height << 16) | area->width;
+ mb862xxfb_write_fifo(6, cmd, info);
+}
+
+/*
+ * Fill in the cmd array /GDC FIFO commands/ to draw a 1bit image.
+ * Make sure cmd has enough room!
+ */
+static void mb86290fb_imageblit1(u32 *cmd, u16 step, u16 dx, u16 dy,
+ u16 width, u16 height, u32 fgcolor,
+ u32 bgcolor, const struct fb_image *image,
+ struct fb_info *info)
+{
+ int i;
+ unsigned const char *line;
+ u16 bytes;
+
+ /* set colors and raster operation regs */
+ cmd[0] = (GDC_TYPE_SETREGISTER << 24) | (1 << 16) | GDC_REG_MODE_BITMAP;
+ /* Set raster operation */
+ cmd[1] = (2 << 7) | (GDC_ROP_COPY << 9);
+ cmd[2] =
+ (GDC_TYPE_SETCOLORREGISTER << 24) | (GDC_CMD_BODY_FORE_COLOR << 16);
+ cmd[3] = fgcolor;
+ cmd[4] =
+ (GDC_TYPE_SETCOLORREGISTER << 24) | (GDC_CMD_BODY_BACK_COLOR << 16);
+ cmd[5] = bgcolor;
+
+ i = 0;
+ line = image->data;
+ bytes = (image->width + 7) >> 3;
+
+ /* and the image */
+ cmd[6] = (GDC_TYPE_DRAWBITMAPP << 24) |
+ (GDC_CMD_BITMAP << 16) | (2 + (step * height));
+ cmd[7] = (dy << 16) | dx;
+ cmd[8] = (height << 16) | width;
+
+ while (i < height) {
+ memcpy(&cmd[9 + i * step], line, step << 2);
+#ifdef __LITTLE_ENDIAN
+ {
+ int k = 0;
+ for (k = 0; k < step; k++)
+ cmd[9 + i * step + k] =
+ cpu_to_be32(cmd[9 + i * step + k]);
+ }
+#endif
+ line += bytes;
+ i++;
+ }
+}
+
+/*
+ * Fill in the cmd array /GDC FIFO commands/ to draw a 8bit image.
+ * Make sure cmd has enough room!
+ */
+static void mb86290fb_imageblit8(u32 *cmd, u16 step, u16 dx, u16 dy,
+ u16 width, u16 height, u32 fgcolor,
+ u32 bgcolor, const struct fb_image *image,
+ struct fb_info *info)
+{
+ int i, j;
+ unsigned const char *line, *ptr;
+ u16 bytes;
+
+ cmd[0] = (GDC_TYPE_DRAWBITMAPP << 24) |
+ (GDC_CMD_BLT_DRAW << 16) | (2 + (height * step));
+ cmd[1] = (dy << 16) | dx;
+ cmd[2] = (height << 16) | width;
+
+ i = 0;
+ line = ptr = image->data;
+ bytes = image->width;
+
+ while (i < height) {
+ ptr = line;
+ for (j = 0; j < step; j++) {
+ cmd[3 + i * step + j] =
+ (((u32 *) (info->pseudo_palette))[*ptr]) & 0xffff;
+ ptr++;
+ cmd[3 + i * step + j] |=
+ ((((u32 *) (info->
+ pseudo_palette))[*ptr]) & 0xffff) << 16;
+ ptr++;
+ }
+
+ line += bytes;
+ i++;
+ }
+}
+
+/*
+ * Fill in the cmd array /GDC FIFO commands/ to draw a 16bit image.
+ * Make sure cmd has enough room!
+ */
+static void mb86290fb_imageblit16(u32 *cmd, u16 step, u16 dx, u16 dy,
+ u16 width, u16 height, u32 fgcolor,
+ u32 bgcolor, const struct fb_image *image,
+ struct fb_info *info)
+{
+ int i;
+ unsigned const char *line;
+ u16 bytes;
+
+ i = 0;
+ line = image->data;
+ bytes = image->width << 1;
+
+ cmd[0] = (GDC_TYPE_DRAWBITMAPP << 24) |
+ (GDC_CMD_BLT_DRAW << 16) | (2 + step * height);
+ cmd[1] = (dy << 16) | dx;
+ cmd[2] = (height << 16) | width;
+
+ while (i < height) {
+ memcpy(&cmd[3 + i * step], line, step);
+ line += bytes;
+ i++;
+ }
+}
+
+static void mb86290fb_imageblit(struct fb_info *info,
+ const struct fb_image *image)
+{
+ int mdr;
+ u32 *cmd = NULL;
+ void (*cmdfn) (u32 *, u16, u16, u16, u16, u16, u32, u32,
+ const struct fb_image *, struct fb_info *) = NULL;
+ u32 cmdlen;
+ u32 fgcolor = 0, bgcolor = 0;
+ u16 step;
+
+ u16 width = image->width, height = image->height;
+ u16 dx = image->dx, dy = image->dy;
+ int x2, y2, vxres, vyres;
+
+ mdr = (GDC_ROP_COPY << 9);
+ x2 = image->dx + image->width;
+ y2 = image->dy + image->height;
+ vxres = info->var.xres_virtual;
+ vyres = info->var.yres_virtual;
+ x2 = min(x2, vxres);
+ y2 = min(y2, vyres);
+ width = x2 - dx;
+ height = y2 - dy;
+
+ switch (image->depth) {
+ case 1:
+ step = (width + 31) >> 5;
+ cmdlen = 9 + height * step;
+ cmdfn = mb86290fb_imageblit1;
+ if (info->fix.visual == FB_VISUAL_TRUECOLOR ||
+ info->fix.visual == FB_VISUAL_DIRECTCOLOR) {
+ fgcolor =
+ ((u32 *) (info->pseudo_palette))[image->fg_color];
+ bgcolor =
+ ((u32 *) (info->pseudo_palette))[image->bg_color];
+ } else {
+ fgcolor = image->fg_color;
+ bgcolor = image->bg_color;
+ }
+
+ break;
+
+ case 8:
+ step = (width + 1) >> 1;
+ cmdlen = 3 + height * step;
+ cmdfn = mb86290fb_imageblit8;
+ break;
+
+ case 16:
+ step = (width + 1) >> 1;
+ cmdlen = 3 + height * step;
+ cmdfn = mb86290fb_imageblit16;
+ break;
+
+ default:
+ cfb_imageblit(info, image);
+ return;
+ }
+
+ cmd = kmalloc(cmdlen * 4, GFP_DMA);
+ if (!cmd)
+ return cfb_imageblit(info, image);
+ cmdfn(cmd, step, dx, dy, width, height, fgcolor, bgcolor, image, info);
+ mb862xxfb_write_fifo(cmdlen, cmd, info);
+ kfree(cmd);
+}
+
+static void mb86290fb_fillrect(struct fb_info *info,
+ const struct fb_fillrect *rect)
+{
+
+ u32 x2, y2, vxres, vyres, height, width, fg;
+ u32 cmd[7];
+
+ vxres = info->var.xres_virtual;
+ vyres = info->var.yres_virtual;
+
+ if (!rect->width || !rect->height || rect->dx > vxres
+ || rect->dy > vyres)
+ return;
+
+ /* We could use hardware clipping but on many cards you get around
+ * hardware clipping by writing to framebuffer directly. */
+ x2 = rect->dx + rect->width;
+ y2 = rect->dy + rect->height;
+ x2 = min(x2, vxres);
+ y2 = min(y2, vyres);
+ width = x2 - rect->dx;
+ height = y2 - rect->dy;
+ if (info->fix.visual == FB_VISUAL_TRUECOLOR ||
+ info->fix.visual == FB_VISUAL_DIRECTCOLOR)
+ fg = ((u32 *) (info->pseudo_palette))[rect->color];
+ else
+ fg = rect->color;
+
+ switch (rect->rop) {
+
+ case ROP_XOR:
+ /* Set raster operation */
+ cmd[1] = (2 << 7) | (GDC_ROP_XOR << 9);
+ break;
+
+ case ROP_COPY:
+ /* Set raster operation */
+ cmd[1] = (2 << 7) | (GDC_ROP_COPY << 9);
+ break;
+
+ }
+
+ cmd[0] = (GDC_TYPE_SETREGISTER << 24) | (1 << 16) | GDC_REG_MODE_BITMAP;
+ /* cmd[1] set earlier */
+ cmd[2] =
+ (GDC_TYPE_SETCOLORREGISTER << 24) | (GDC_CMD_BODY_FORE_COLOR << 16);
+ cmd[3] = fg;
+ cmd[4] = (GDC_TYPE_DRAWRECTP << 24) | (GDC_CMD_BLT_FILL << 16);
+ cmd[5] = (rect->dy << 16) | (rect->dx);
+ cmd[6] = (height << 16) | width;
+
+ mb862xxfb_write_fifo(7, cmd, info);
+}
+
+void mb862xxfb_init_accel(struct fb_info *info, int xres)
+{
+ struct mb862xxfb_par *par = info->par;
+
+ if (info->var.bits_per_pixel == 32) {
+ info->fbops->fb_fillrect = cfb_fillrect;
+ info->fbops->fb_copyarea = cfb_copyarea;
+ info->fbops->fb_imageblit = cfb_imageblit;
+ } else {
+ outreg(disp, GC_L0EM, 3);
+ info->fbops->fb_fillrect = mb86290fb_fillrect;
+ info->fbops->fb_copyarea = mb86290fb_copyarea;
+ info->fbops->fb_imageblit = mb86290fb_imageblit;
+ }
+ outreg(draw, GDC_REG_DRAW_BASE, 0);
+ outreg(draw, GDC_REG_MODE_MISC, 0x8000);
+ outreg(draw, GDC_REG_X_RESOLUTION, xres);
+
+ info->flags |=
+ FBINFO_HWACCEL_COPYAREA | FBINFO_HWACCEL_FILLRECT |
+ FBINFO_HWACCEL_IMAGEBLIT;
+ info->fix.accel = 0xff; /*FIXME: add right define */
+}
+EXPORT_SYMBOL(mb862xxfb_init_accel);
+
+MODULE_LICENSE("GPL v2");
Code Review / kvmfornfv.git / blobdiff