/*
* Driver data
*/
+static int hwcursor = 1;
static char *mode_option __devinitdata;
static int noaccel __devinitdata;
static inline void PM3_WAIT(struct pm3_par *par, u32 n)
{
- while (PM3_READ_REG(par, PM3InFIFOSpace) < n);
+ while (PM3_READ_REG(par, PM3InFIFOSpace) < n)
+ cpu_relax();
}
static inline void PM3_WRITE_DAC_REG(struct pm3_par *par, unsigned r, u8 v)
PM3_WRITE_REG(par, PM3Sync, 0);
mb();
do {
- while ((PM3_READ_REG(par, PM3OutFIFOWords)) == 0);
- rmb();
+ while ((PM3_READ_REG(par, PM3OutFIFOWords)) == 0)
+ cpu_relax();
} while ((PM3_READ_REG(par, PM3OutputFifo)) != PM3Sync_Tag);
return 0;
}
/* end of acceleration functions */
+/*
+ * Hardware Cursor support.
+ */
+static const u8 cursor_bits_lookup[16] = {
+ 0x00, 0x40, 0x10, 0x50, 0x04, 0x44, 0x14, 0x54,
+ 0x01, 0x41, 0x11, 0x51, 0x05, 0x45, 0x15, 0x55
+};
+
+static int pm3fb_cursor(struct fb_info *info, struct fb_cursor *cursor)
+{
+ struct pm3_par *par = info->par;
+ u8 mode;
+
+ if (!hwcursor)
+ return -EINVAL; /* just to force soft_cursor() call */
+
+ /* Too large of a cursor or wrong bpp :-( */
+ if (cursor->image.width > 64 ||
+ cursor->image.height > 64 ||
+ cursor->image.depth > 1)
+ return -EINVAL;
+
+ mode = PM3RD_CursorMode_TYPE_X;
+ if (cursor->enable)
+ mode |= PM3RD_CursorMode_CURSOR_ENABLE;
+
+ PM3_WRITE_DAC_REG(par, PM3RD_CursorMode, mode);
+
+ /*
+ * If the cursor is not be changed this means either we want the
+ * current cursor state (if enable is set) or we want to query what
+ * we can do with the cursor (if enable is not set)
+ */
+ if (!cursor->set)
+ return 0;
+
+ if (cursor->set & FB_CUR_SETPOS) {
+ int x = cursor->image.dx - info->var.xoffset;
+ int y = cursor->image.dy - info->var.yoffset;
+
+ PM3_WRITE_DAC_REG(par, PM3RD_CursorXLow, x & 0xff);
+ PM3_WRITE_DAC_REG(par, PM3RD_CursorXHigh, (x >> 8) & 0xf);
+ PM3_WRITE_DAC_REG(par, PM3RD_CursorYLow, y & 0xff);
+ PM3_WRITE_DAC_REG(par, PM3RD_CursorYHigh, (y >> 8) & 0xf);
+ }
+
+ if (cursor->set & FB_CUR_SETHOT) {
+ PM3_WRITE_DAC_REG(par, PM3RD_CursorHotSpotX,
+ cursor->hot.x & 0x3f);
+ PM3_WRITE_DAC_REG(par, PM3RD_CursorHotSpotY,
+ cursor->hot.y & 0x3f);
+ }
+
+ if (cursor->set & FB_CUR_SETCMAP) {
+ u32 fg_idx = cursor->image.fg_color;
+ u32 bg_idx = cursor->image.bg_color;
+ struct fb_cmap cmap = info->cmap;
+
+ /* the X11 driver says one should use these color registers */
+ PM3_WRITE_DAC_REG(par, PM3RD_CursorPalette(39),
+ cmap.red[fg_idx] >> 8 );
+ PM3_WRITE_DAC_REG(par, PM3RD_CursorPalette(40),
+ cmap.green[fg_idx] >> 8 );
+ PM3_WRITE_DAC_REG(par, PM3RD_CursorPalette(41),
+ cmap.blue[fg_idx] >> 8 );
+
+ PM3_WRITE_DAC_REG(par, PM3RD_CursorPalette(42),
+ cmap.red[bg_idx] >> 8 );
+ PM3_WRITE_DAC_REG(par, PM3RD_CursorPalette(43),
+ cmap.green[bg_idx] >> 8 );
+ PM3_WRITE_DAC_REG(par, PM3RD_CursorPalette(44),
+ cmap.blue[bg_idx] >> 8 );
+ }
+
+ if (cursor->set & (FB_CUR_SETSHAPE | FB_CUR_SETIMAGE)) {
+ u8 *bitmap = (u8 *)cursor->image.data;
+ u8 *mask = (u8 *)cursor->mask;
+ int i;
+ int pos = PM3RD_CursorPattern(0);
+
+ for (i = 0; i < cursor->image.height; i++) {
+ int j = (cursor->image.width + 7) >> 3;
+ int k = 8 - j;
+
+ for (; j > 0; j--) {
+ u8 data = *bitmap ^ *mask;
+
+ if (cursor->rop == ROP_COPY)
+ data = *mask & *bitmap;
+ /* Upper 4 bits of bitmap data */
+ PM3_WRITE_DAC_REG(par, pos++,
+ cursor_bits_lookup[data >> 4] |
+ (cursor_bits_lookup[*mask >> 4] << 1));
+ /* Lower 4 bits of bitmap */
+ PM3_WRITE_DAC_REG(par, pos++,
+ cursor_bits_lookup[data & 0xf] |
+ (cursor_bits_lookup[*mask & 0xf] << 1));
+ bitmap++;
+ mask++;
+ }
+ for (; k > 0; k--) {
+ PM3_WRITE_DAC_REG(par, pos++, 0);
+ PM3_WRITE_DAC_REG(par, pos++, 0);
+ }
+ }
+ while (pos < PM3RD_CursorPattern(1024))
+ PM3_WRITE_DAC_REG(par, pos++, 0);
+ }
+ return 0;
+}
+
/* write the mode to registers */
static void pm3fb_write_mode(struct fb_info *info)
{
.fb_imageblit = pm3fb_imageblit,
.fb_blank = pm3fb_blank,
.fb_sync = pm3fb_sync,
+ .fb_cursor = pm3fb_cursor,
};
/* ------------------------------------------------------------------------- */
/* mmio register are already mapped when this function is called */
/* the pm3fb_fix.smem_start is also set */
-static unsigned long pm3fb_size_memory(struct pm3_par *par)
+static unsigned long __devinit pm3fb_size_memory(struct pm3_par *par)
{
unsigned long memsize = 0;
unsigned long tempBypass, i, temp1, temp2;
continue;
else if (!strncmp(this_opt, "noaccel", 7))
noaccel = 1;
+ else if (!strncmp(this_opt, "hwcursor=", 9))
+ hwcursor = simple_strtoul(this_opt + 9, NULL, 0);
#ifdef CONFIG_MTRR
else if (!strncmp(this_opt, "nomtrr", 6))
nomtrr = 1;
module_param(noaccel, bool, 0);
MODULE_PARM_DESC(noaccel, "Disable acceleration");
+module_param(hwcursor, int, 0644);
+MODULE_PARM_DESC(hwcursor, "Enable hardware cursor "
+ "(1=enable, 0=disable, default=1)");
#ifdef CONFIG_MTRR
module_param(nomtrr, bool, 0);
MODULE_PARM_DESC(nomtrr, "Disable MTRR support (0 or 1=disabled) (default=0)");
projects / linux-2.6-omap-h63xx.git / blobdiff