diff options
Diffstat (limited to 'drivers/video/aty/mach64_cursor.c')
| -rw-r--r-- | drivers/video/aty/mach64_cursor.c | 217 |
1 files changed, 0 insertions, 217 deletions
diff --git a/drivers/video/aty/mach64_cursor.c b/drivers/video/aty/mach64_cursor.c deleted file mode 100644 index faf95da8fcb..00000000000 --- a/drivers/video/aty/mach64_cursor.c +++ /dev/null @@ -1,217 +0,0 @@ -/* - * ATI Mach64 CT/VT/GT/LT Cursor Support - */ - -#include <linux/slab.h> -#include <linux/fb.h> -#include <linux/init.h> -#include <linux/string.h> - -#include <asm/io.h> - -#ifdef __sparc__ -#include <asm/fbio.h> -#endif - -#include <video/mach64.h> -#include "atyfb.h" - -/* - * The hardware cursor definition requires 2 bits per pixel. The - * Cursor size reguardless of the visible cursor size is 64 pixels - * by 64 lines. The total memory required to define the cursor is - * 16 bytes / line for 64 lines or 1024 bytes of data. The data - * must be in a contigiuos format. The 2 bit cursor code values are - * as follows: - * - * 00 - pixel colour = CURSOR_CLR_0 - * 01 - pixel colour = CURSOR_CLR_1 - * 10 - pixel colour = transparent (current display pixel) - * 11 - pixel colour = 1's complement of current display pixel - * - * Cursor Offset 64 pixels Actual Displayed Area - * \_________________________/ - * | | | | - * |<--------------->| | | - * | CURS_HORZ_OFFSET| | | - * | |_______| | 64 Lines - * | ^ | | - * | | | | - * | CURS_VERT_OFFSET| | - * | | | | - * |____________________|____| | - * - * - * The Screen position of the top left corner of the displayed - * cursor is specificed by CURS_HORZ_VERT_POSN. Care must be taken - * when the cursor hot spot is not the top left corner and the - * physical cursor position becomes negative. It will be be displayed - * if either the horizontal or vertical cursor position is negative - * - * If x becomes negative the cursor manager must adjust the CURS_HORZ_OFFSET - * to a larger number and saturate CUR_HORZ_POSN to zero. - * - * if Y becomes negative, CUR_VERT_OFFSET must be adjusted to a larger number, - * CUR_OFFSET must be adjusted to a point to the appropraite line in the cursor - * definitation and CUR_VERT_POSN must be saturated to zero. - */ - - /* - * 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 atyfb_cursor(struct fb_info *info, struct fb_cursor *cursor) -{ - struct atyfb_par *par = (struct atyfb_par *) info->par; - u16 xoff, yoff; - int x, y, h; - -#ifdef __sparc__ - if (par->mmaped) - return -EPERM; -#endif - if (par->asleep) - return -EPERM; - - /* Hide cursor */ - wait_for_fifo(1, par); - aty_st_le32(GEN_TEST_CNTL, aty_ld_le32(GEN_TEST_CNTL, par) & ~HWCURSOR_ENABLE, par); - - /* set position */ - if (cursor->set & FB_CUR_SETPOS) { - x = cursor->image.dx - cursor->hot.x - info->var.xoffset; - if (x < 0) { - xoff = -x; - x = 0; - } else { - xoff = 0; - } - - y = cursor->image.dy - cursor->hot.y - info->var.yoffset; - if (y < 0) { - yoff = -y; - y = 0; - } else { - yoff = 0; - } - - h = cursor->image.height; - - /* - * In doublescan mode, the cursor location - * and heigh also needs to be doubled. - */ - if (par->crtc.gen_cntl & CRTC_DBL_SCAN_EN) { - y<<=1; - h<<=1; - } - wait_for_fifo(4, par); - aty_st_le32(CUR_OFFSET, (info->fix.smem_len >> 3) + (yoff << 1), par); - aty_st_le32(CUR_HORZ_VERT_OFF, - ((u32) (64 - h + yoff) << 16) | xoff, par); - aty_st_le32(CUR_HORZ_VERT_POSN, ((u32) y << 16) | x, par); - } - - /* Set color map */ - if (cursor->set & FB_CUR_SETCMAP) { - u32 fg_idx, bg_idx, fg, bg; - - fg_idx = cursor->image.fg_color; - bg_idx = cursor->image.bg_color; - - fg = ((info->cmap.red[fg_idx] & 0xff) << 24) | - ((info->cmap.green[fg_idx] & 0xff) << 16) | - ((info->cmap.blue[fg_idx] & 0xff) << 8) | 0xff; - - bg = ((info->cmap.red[bg_idx] & 0xff) << 24) | - ((info->cmap.green[bg_idx] & 0xff) << 16) | - ((info->cmap.blue[bg_idx] & 0xff) << 8); - - wait_for_fifo(2, par); - aty_st_le32(CUR_CLR0, bg, par); - aty_st_le32(CUR_CLR1, fg, par); - } - - if (cursor->set & (FB_CUR_SETSHAPE | FB_CUR_SETIMAGE)) { - u8 *src = (u8 *)cursor->image.data; - u8 *msk = (u8 *)cursor->mask; - u8 __iomem *dst = (u8 __iomem *)info->sprite.addr; - unsigned int width = (cursor->image.width + 7) >> 3; - unsigned int height = cursor->image.height; - unsigned int align = info->sprite.scan_align; - - unsigned int i, j, offset; - u8 m, b; - - // Clear cursor image with 1010101010... - fb_memset(dst, 0xaa, 1024); - - offset = align - width*2; - - for (i = 0; i < height; i++) { - for (j = 0; j < width; j++) { - b = *src++; - m = *msk++; - switch (cursor->rop) { - case ROP_XOR: - // Upper 4 bits of mask data - fb_writeb(cursor_bits_lookup[(b ^ m) >> 4], dst++); - // Lower 4 bits of mask - fb_writeb(cursor_bits_lookup[(b ^ m) & 0x0f], - dst++); - break; - case ROP_COPY: - // Upper 4 bits of mask data - fb_writeb(cursor_bits_lookup[(b & m) >> 4], dst++); - // Lower 4 bits of mask - fb_writeb(cursor_bits_lookup[(b & m) & 0x0f], - dst++); - break; - } - } - dst += offset; - } - } - - if (cursor->enable) { - wait_for_fifo(1, par); - aty_st_le32(GEN_TEST_CNTL, aty_ld_le32(GEN_TEST_CNTL, par) - | HWCURSOR_ENABLE, par); - } - return 0; -} - -int __devinit aty_init_cursor(struct fb_info *info) -{ - unsigned long addr; - - info->fix.smem_len -= PAGE_SIZE; - -#ifdef __sparc__ - addr = (unsigned long) info->screen_base - 0x800000 + info->fix.smem_len; - info->sprite.addr = (u8 *) addr; -#else -#ifdef __BIG_ENDIAN - addr = info->fix.smem_start - 0x800000 + info->fix.smem_len; - info->sprite.addr = (u8 *) ioremap(addr, 1024); -#else - addr = (unsigned long) info->screen_base + info->fix.smem_len; - info->sprite.addr = (u8 *) addr; -#endif -#endif - if (!info->sprite.addr) - return -ENXIO; - info->sprite.size = PAGE_SIZE; - info->sprite.scan_align = 16; /* Scratch pad 64 bytes wide */ - info->sprite.buf_align = 16; /* and 64 lines tall. */ - info->sprite.flags = FB_PIXMAP_IO; - - info->fbops->fb_cursor = atyfb_cursor; - - return 0; -} - |