+
/*
* ATI Mach64 CT/VT/GT/LT Cursor Support
*/
#include <linux/slab.h>
+#include <linux/console.h>
#include <linux/fb.h>
#include <linux/init.h>
-#include <linux/string.h>
#include <asm/io.h>
#include <asm/uaccess.h>
#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_pixel_map[2] = { 0, 15 };
+static const u8 cursor_color_map[2] = { 0, 0xff };
+
static const u8 cursor_bits_lookup[16] = {
0x00, 0x40, 0x10, 0x50, 0x04, 0x44, 0x14, 0x54,
0x01, 0x41, 0x11, 0x51, 0x05, 0x45, 0x15, 0x55
0xa8, 0x28, 0x88, 0x08, 0xa0, 0x20, 0x80, 0x00
};
-int atyfb_cursor(struct fb_info *info, struct fb_cursor *cursor)
+void aty_set_cursor_color(struct fb_info *info)
{
struct atyfb_par *par = (struct atyfb_par *) info->par;
- u16 xoff, yoff;
- int x, y, h;
+ struct aty_cursor *c = par->cursor;
+ const u8 *pixel = cursor_pixel_map; /* ++Geert: Why?? */
+ const u8 *red = cursor_color_map;
+ const u8 *green = cursor_color_map;
+ const u8 *blue = cursor_color_map;
+ u32 fg_color, bg_color;
+
+ if (!c)
+ return;
#ifdef __sparc__
if (par->mmaped)
- return -EPERM;
+ return;
#endif
- if (par->asleep)
- return -EPERM;
+ fg_color = (u32) red[0] << 24;
+ fg_color |= (u32) green[0] << 16;
+ fg_color |= (u32) blue[0] << 8;
+ fg_color |= (u32) pixel[0];
+
+ bg_color = (u32) red[1] << 24;
+ bg_color |= (u32) green[1] << 16;
+ bg_color |= (u32) blue[1] << 8;
+ bg_color |= (u32) pixel[1];
+
+ wait_for_fifo(2, par);
+ aty_st_le32(CUR_CLR0, fg_color, par);
+ aty_st_le32(CUR_CLR1, bg_color, par);
+}
+
+void aty_set_cursor_shape(struct fb_info *info)
+{
+ struct atyfb_par *par = (struct atyfb_par *) info->par;
+ struct fb_cursor *cursor = &info->cursor;
+ struct aty_cursor *c = par->cursor;
+ u8 *ram, m, b;
+ int x, y;
- /* Hide cursor */
- wait_for_fifo(1, par);
- aty_st_le32(GEN_TEST_CNTL, aty_ld_le32(GEN_TEST_CNTL, par) & ~HWCURSOR_ENABLE, par);
+ if (!c)
+ return;
+#ifdef __sparc__
+ if (par->mmaped)
+ return;
+#endif
- /* set position */
- if (cursor->set & FB_CUR_SETPOS) {
+ ram = c->ram;
+ for (y = 0; y < cursor->image.height; y++) {
+ for (x = 0; x < cursor->image.width >> 2; x++) {
+ m = c->mask[x][y];
+ b = c->bits[x][y];
+ fb_writeb(cursor_mask_lookup[m >> 4] |
+ cursor_bits_lookup[(b & m) >> 4], ram++);
+ fb_writeb(cursor_mask_lookup[m & 0x0f] |
+ cursor_bits_lookup[(b & m) & 0x0f],
+ ram++);
+ }
+ for (; x < 8; x++) {
+ fb_writeb(0xaa, ram++);
+ fb_writeb(0xaa, ram++);
+ }
+ }
+ fb_memset(ram, 0xaa, (64 - cursor->image.height) * 16);
+}
+
+static void aty_set_cursor(struct fb_info *info)
+{
+ struct atyfb_par *par = (struct atyfb_par *) info->par;
+ struct fb_cursor *cursor = &info->cursor;
+ struct aty_cursor *c = par->cursor;
+ u16 xoff, yoff;
+ int x, y;
+
+ if (!c)
+ return;
+
+#ifdef __sparc__
+ if (par->mmaped)
+ return;
+#endif
+
+ if (cursor->enable) {
x = cursor->image.dx - cursor->hot.x - info->var.xoffset;
if (x < 0) {
xoff = -x;
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_OFFSET, (info->fix.smem_len >> 3) + (yoff << 1),
+ par);
aty_st_le32(CUR_HORZ_VERT_OFF,
- ((u32) (64 - h + yoff) << 16) | xoff, par);
+ ((u32) (64 - cursor->image.height + yoff) << 16) | xoff,
+ par);
aty_st_le32(CUR_HORZ_VERT_POSN, ((u32) y << 16) | x, par);
+ aty_st_le32(GEN_TEST_CNTL, aty_ld_le32(GEN_TEST_CNTL, par)
+ | HWCURSOR_ENABLE, par);
+ } else {
+ wait_for_fifo(1, par);
+ aty_st_le32(GEN_TEST_CNTL,
+ aty_ld_le32(GEN_TEST_CNTL,
+ par) & ~HWCURSOR_ENABLE, par);
}
+ if (par->blitter_may_be_busy)
+ wait_for_idle(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] << 24) |
- (info->cmap.green[fg_idx] << 16) |
- (info->cmap.blue[fg_idx] << 8) | 15;
+int atyfb_cursor(struct fb_info *info, struct fb_cursor *cursor)
+{
+ struct atyfb_par *par = (struct atyfb_par *) info->par;
+ struct aty_cursor *c = par->cursor;
- bg = (info->cmap.red[bg_idx] << 24) |
- (info->cmap.green[bg_idx] << 16) |
- (info->cmap.blue[bg_idx] << 8);
+ if (!c)
+ return -1;
- wait_for_fifo(2, par);
- aty_st_le32(CUR_CLR0, bg, par);
- aty_st_le32(CUR_CLR1, fg, par);
- }
+#ifdef __sparc__
+ if (par->mmaped)
+ return 0;
+#endif
- 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_mask_lookup[m >> 4 ] |
- cursor_bits_lookup[(b ^ m) >> 4], dst++);
- // Lower 4 bits of mask
- fb_writeb(cursor_mask_lookup[m & 0x0f ] |
- cursor_bits_lookup[(b ^ m) & 0x0f], dst++);
- break;
- case ROP_COPY:
- // Upper 4 bits of mask data
- fb_writeb(cursor_mask_lookup[m >> 4 ] |
- cursor_bits_lookup[(b & m) >> 4], dst++);
- // Lower 4 bits of mask
- fb_writeb(cursor_mask_lookup[m & 0x0f ] |
- cursor_bits_lookup[(b & m) & 0x0f], dst++);
- break;
- }
- }
- dst += offset;
- }
- }
+ aty_set_cursor(info);
+ cursor->image.dx = info->cursor.image.dx;
+ cursor->image.dy = info->cursor.image.dy;
- if (cursor->enable) {
- wait_for_fifo(1, par);
- aty_st_le32(GEN_TEST_CNTL, aty_ld_le32(GEN_TEST_CNTL, par)
- | HWCURSOR_ENABLE, par);
- }
+ aty_set_cursor(info);
return 0;
}
-int __init aty_init_cursor(struct fb_info *info)
+struct aty_cursor *__init aty_init_cursor(struct fb_info *info)
{
+ struct aty_cursor *cursor;
unsigned long addr;
+ cursor = kmalloc(sizeof(struct aty_cursor), GFP_ATOMIC);
+ if (!cursor)
+ return NULL;
+ memset(cursor, 0, sizeof(*cursor));
+
info->fix.smem_len -= PAGE_SIZE;
#ifdef __sparc__
addr = (unsigned long) info->screen_base - 0x800000 + info->fix.smem_len;
- info->sprite.addr = (u8 *) addr;
+ cursor->ram = (u8 *) addr;
#else
#ifdef __BIG_ENDIAN
addr = info->fix.smem_start - 0x800000 + info->fix.smem_len;
- info->sprite.addr = (u8 *) ioremap(addr, 1024);
+ cursor->ram = (u8 *) ioremap(addr, 1024);
#else
addr = (unsigned long) info->screen_base + info->fix.smem_len;
- info->sprite.addr = (u8 *) addr;
+ cursor->ram = (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;
+ if (!cursor->ram) {
+ kfree(cursor);
+ return NULL;
+ }
+ return cursor;
+}
+
+int atyfb_set_font(struct fb_info *info, int width, int height)
+{
+ struct atyfb_par *par = (struct atyfb_par *) info->par;
+ struct fb_cursor *cursor = &info->cursor;
+ struct aty_cursor *c = par->cursor;
+ int i, j;
+
+ if (c) {
+ if (!width || !height) {
+ width = 8;
+ height = 16;
+ }
- info->fbops->fb_cursor = atyfb_cursor;
+ cursor->hot.x = 0;
+ cursor->hot.y = 0;
+ cursor->image.width = width;
+ cursor->image.height = height;
- return 0;
-}
+ memset(c->bits, 0xff, sizeof(c->bits));
+ memset(c->mask, 0, sizeof(c->mask));
+ for (i = 0, j = width; j >= 0; j -= 8, i++) {
+ c->mask[i][height - 2] =
+ (j >= 8) ? 0xff : (0xff << (8 - j));
+ c->mask[i][height - 1] =
+ (j >= 8) ? 0xff : (0xff << (8 - j));
+ }
+
+ aty_set_cursor_color(info);
+ aty_set_cursor_shape(info);
+ }
+ return 1;
+}