mach64_cursor.c revision 1da177e4c3f41524e886b7f1b8a0c1fc7321cac
11da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 21da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * ATI Mach64 CT/VT/GT/LT Cursor Support 31da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 41da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 51da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/slab.h> 61da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/fb.h> 71da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/init.h> 81da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/string.h> 91da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <asm/io.h> 111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <asm/uaccess.h> 121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef __sparc__ 141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <asm/pbm.h> 151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <asm/fbio.h> 161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <video/mach64.h> 191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include "atyfb.h" 201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * The hardware cursor definition requires 2 bits per pixel. The 231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Cursor size reguardless of the visible cursor size is 64 pixels 241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * by 64 lines. The total memory required to define the cursor is 251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 16 bytes / line for 64 lines or 1024 bytes of data. The data 261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * must be in a contigiuos format. The 2 bit cursor code values are 271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * as follows: 281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 00 - pixel colour = CURSOR_CLR_0 301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 01 - pixel colour = CURSOR_CLR_1 311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 10 - pixel colour = transparent (current display pixel) 321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 11 - pixel colour = 1's complement of current display pixel 331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Cursor Offset 64 pixels Actual Displayed Area 351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * \_________________________/ 361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * | | | | 371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * |<--------------->| | | 381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * | CURS_HORZ_OFFSET| | | 391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * | |_______| | 64 Lines 401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * | ^ | | 411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * | | | | 421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * | CURS_VERT_OFFSET| | 431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * | | | | 441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * |____________________|____| | 451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * The Screen position of the top left corner of the displayed 481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * cursor is specificed by CURS_HORZ_VERT_POSN. Care must be taken 491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * when the cursor hot spot is not the top left corner and the 501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * physical cursor position becomes negative. It will be be displayed 511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * if either the horizontal or vertical cursor position is negative 521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * If x becomes negative the cursor manager must adjust the CURS_HORZ_OFFSET 541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * to a larger number and saturate CUR_HORZ_POSN to zero. 551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * if Y becomes negative, CUR_VERT_OFFSET must be adjusted to a larger number, 571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * CUR_OFFSET must be adjusted to a point to the appropraite line in the cursor 581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * definitation and CUR_VERT_POSN must be saturated to zero. 591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Hardware Cursor support. 631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic const u8 cursor_bits_lookup[16] = { 651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 0x00, 0x40, 0x10, 0x50, 0x04, 0x44, 0x14, 0x54, 661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 0x01, 0x41, 0x11, 0x51, 0x05, 0x45, 0x15, 0x55 671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic const u8 cursor_mask_lookup[16] = { 701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 0xaa, 0x2a, 0x8a, 0x0a, 0xa2, 0x22, 0x82, 0x02, 711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 0xa8, 0x28, 0x88, 0x08, 0xa0, 0x20, 0x80, 0x00 721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int atyfb_cursor(struct fb_info *info, struct fb_cursor *cursor) 751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct atyfb_par *par = (struct atyfb_par *) info->par; 771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u16 xoff, yoff; 781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int x, y, h; 791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef __sparc__ 811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (par->mmaped) 821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EPERM; 831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (par->asleep) 851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EPERM; 861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Hide cursor */ 881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds wait_for_fifo(1, par); 891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds aty_st_le32(GEN_TEST_CNTL, aty_ld_le32(GEN_TEST_CNTL, par) & ~HWCURSOR_ENABLE, par); 901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* set position */ 921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (cursor->set & FB_CUR_SETPOS) { 931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds x = cursor->image.dx - cursor->hot.x - info->var.xoffset; 941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (x < 0) { 951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds xoff = -x; 961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds x = 0; 971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds xoff = 0; 991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds y = cursor->image.dy - cursor->hot.y - info->var.yoffset; 1021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (y < 0) { 1031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds yoff = -y; 1041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds y = 0; 1051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 1061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds yoff = 0; 1071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds h = cursor->image.height; 1101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 1121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * In doublescan mode, the cursor location 1131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * and heigh also needs to be doubled. 1141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (par->crtc.gen_cntl & CRTC_DBL_SCAN_EN) { 1161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds y<<=1; 1171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds h<<=1; 1181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds wait_for_fifo(4, par); 1201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds aty_st_le32(CUR_OFFSET, (info->fix.smem_len >> 3) + (yoff << 1), par); 1211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds aty_st_le32(CUR_HORZ_VERT_OFF, 1221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ((u32) (64 - h + yoff) << 16) | xoff, par); 1231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds aty_st_le32(CUR_HORZ_VERT_POSN, ((u32) y << 16) | x, par); 1241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Set color map */ 1271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (cursor->set & FB_CUR_SETCMAP) { 1281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 fg_idx, bg_idx, fg, bg; 1291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fg_idx = cursor->image.fg_color; 1311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds bg_idx = cursor->image.bg_color; 1321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fg = (info->cmap.red[fg_idx] << 24) | 1341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (info->cmap.green[fg_idx] << 16) | 1351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (info->cmap.blue[fg_idx] << 8) | 15; 1361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds bg = (info->cmap.red[bg_idx] << 24) | 1381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (info->cmap.green[bg_idx] << 16) | 1391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (info->cmap.blue[bg_idx] << 8); 1401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds wait_for_fifo(2, par); 1421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds aty_st_le32(CUR_CLR0, bg, par); 1431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds aty_st_le32(CUR_CLR1, fg, par); 1441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (cursor->set & (FB_CUR_SETSHAPE | FB_CUR_SETIMAGE)) { 1471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 *src = (u8 *)cursor->image.data; 1481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 *msk = (u8 *)cursor->mask; 1491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 __iomem *dst = (u8 __iomem *)info->sprite.addr; 1501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int width = (cursor->image.width + 7) >> 3; 1511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int height = cursor->image.height; 1521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int align = info->sprite.scan_align; 1531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int i, j, offset; 1551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 m, b; 1561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds // Clear cursor image with 1010101010... 1581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fb_memset(dst, 0xaa, 1024); 1591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds offset = align - width*2; 1611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < height; i++) { 1631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (j = 0; j < width; j++) { 1641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds b = *src++; 1651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds m = *msk++; 1661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (cursor->rop) { 1671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case ROP_XOR: 1681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds // Upper 4 bits of mask data 1691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fb_writeb(cursor_mask_lookup[m >> 4 ] | 1701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cursor_bits_lookup[(b ^ m) >> 4], dst++); 1711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds // Lower 4 bits of mask 1721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fb_writeb(cursor_mask_lookup[m & 0x0f ] | 1731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cursor_bits_lookup[(b ^ m) & 0x0f], dst++); 1741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 1751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case ROP_COPY: 1761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds // Upper 4 bits of mask data 1771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fb_writeb(cursor_mask_lookup[m >> 4 ] | 1781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cursor_bits_lookup[(b & m) >> 4], dst++); 1791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds // Lower 4 bits of mask 1801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fb_writeb(cursor_mask_lookup[m & 0x0f ] | 1811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cursor_bits_lookup[(b & m) & 0x0f], dst++); 1821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 1831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dst += offset; 1861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (cursor->enable) { 1901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds wait_for_fifo(1, par); 1911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds aty_st_le32(GEN_TEST_CNTL, aty_ld_le32(GEN_TEST_CNTL, par) 1921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds | HWCURSOR_ENABLE, par); 1931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 1951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint __init aty_init_cursor(struct fb_info *info) 1981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long addr; 2001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds info->fix.smem_len -= PAGE_SIZE; 2021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef __sparc__ 2041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds addr = (unsigned long) info->screen_base - 0x800000 + info->fix.smem_len; 2051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds info->sprite.addr = (u8 *) addr; 2061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#else 2071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef __BIG_ENDIAN 2081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds addr = info->fix.smem_start - 0x800000 + info->fix.smem_len; 2091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds info->sprite.addr = (u8 *) ioremap(addr, 1024); 2101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#else 2111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds addr = (unsigned long) info->screen_base + info->fix.smem_len; 2121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds info->sprite.addr = (u8 *) addr; 2131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 2141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 2151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!info->sprite.addr) 2161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENXIO; 2171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds info->sprite.size = PAGE_SIZE; 2181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds info->sprite.scan_align = 16; /* Scratch pad 64 bytes wide */ 2191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds info->sprite.buf_align = 16; /* and 64 lines tall. */ 2201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds info->sprite.flags = FB_PIXMAP_IO; 2211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds info->fbops->fb_cursor = atyfb_cursor; 2231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 2251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 227