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-rw-r--r--drivers/sed13806.c306
1 files changed, 306 insertions, 0 deletions
diff --git a/drivers/sed13806.c b/drivers/sed13806.c
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--- /dev/null
+++ b/drivers/sed13806.c
@@ -0,0 +1,306 @@
+/*
+ * (C) Copyright 2002
+ * Stäubli Faverges - <www.staubli.com>
+ * Pierre AUBERT p.aubert@staubli.com
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+/* Video support for Epson SED13806 chipset */
+
+#include <common.h>
+
+#ifdef CONFIG_VIDEO_SED13806
+
+#include <video_fb.h>
+#include <sed13806.h>
+
+#define readByte(ptrReg) \
+ *(volatile unsigned char *)(sed13806.isaBase + ptrReg)
+
+#define writeByte(ptrReg,value) \
+ *(volatile unsigned char *)(sed13806.isaBase + ptrReg) = value
+
+#define writeWord(ptrReg,value) \
+ (*(volatile unsigned short *)(sed13806.isaBase + ptrReg) = ((value >> 8 ) & 0xff) | ((value << 8) & 0xff00))
+
+
+GraphicDevice sed13806;
+
+/*-----------------------------------------------------------------------------
+ * EpsonSetRegs --
+ *-----------------------------------------------------------------------------
+ */
+static void EpsonSetRegs (void)
+{
+ /* the content of the chipset register depends on the board (clocks, ...)*/
+ const S1D_REGS *preg = board_get_regs ();
+ while (preg -> Index) {
+ writeByte (preg -> Index, preg -> Value);
+ preg ++;
+ }
+}
+
+/*-----------------------------------------------------------------------------
+ * video_hw_init --
+ *-----------------------------------------------------------------------------
+ */
+void *video_hw_init (void)
+{
+ unsigned int *vm, i;
+
+ memset (&sed13806, 0, sizeof (GraphicDevice));
+
+ /* Initialization of the access to the graphic chipset
+ Retreive base address of the chipset
+ (see board/RPXClassic/eccx.c) */
+ if ((sed13806.isaBase = board_video_init ()) == 0) {
+ return (NULL);
+ }
+
+ sed13806.frameAdrs = sed13806.isaBase + FRAME_BUFFER_OFFSET;
+ sed13806.winSizeX = board_get_width ();
+ sed13806.winSizeY = board_get_height ();
+
+#if defined(CONFIG_VIDEO_SED13806_8BPP)
+ sed13806.gdfIndex = GDF__8BIT_INDEX;
+ sed13806.gdfBytesPP = 1;
+
+#elif defined(CONFIG_VIDEO_SED13806_16BPP)
+ sed13806.gdfIndex = GDF_16BIT_565RGB;
+ sed13806.gdfBytesPP = 2;
+
+#else
+#error Unsupported SED13806 BPP
+#endif
+
+ sed13806.memSize = sed13806.winSizeX * sed13806.winSizeY * sed13806.gdfBytesPP;
+
+ /* Load SED registers */
+ EpsonSetRegs ();
+
+ /* (see board/RPXClassic/RPXClassic.c) */
+ board_validate_screen (sed13806.isaBase);
+
+ /* Clear video memory */
+ i = sed13806.memSize/4;
+ vm = (unsigned int *)sed13806.frameAdrs;
+ while(i--)
+ *vm++ = 0;
+
+
+ return (&sed13806);
+}
+/*-----------------------------------------------------------------------------
+ * Epson_wait_idle -- Wait for hardware to become idle
+ *-----------------------------------------------------------------------------
+ */
+static void Epson_wait_idle (void)
+{
+ while (readByte (BLT_CTRL0) & 0x80);
+
+ /* Read a word in the BitBLT memory area to shutdown the BitBLT engine */
+ *(volatile unsigned short *)(sed13806.isaBase + BLT_REG);
+}
+
+/*-----------------------------------------------------------------------------
+ * video_hw_bitblt --
+ *-----------------------------------------------------------------------------
+ */
+void video_hw_bitblt (
+ unsigned int bpp, /* bytes per pixel */
+ unsigned int src_x, /* source pos x */
+ unsigned int src_y, /* source pos y */
+ unsigned int dst_x, /* dest pos x */
+ unsigned int dst_y, /* dest pos y */
+ unsigned int dim_x, /* frame width */
+ unsigned int dim_y /* frame height */
+ )
+{
+ register GraphicDevice *pGD = (GraphicDevice *)&sed13806;
+ unsigned long srcAddr, dstAddr;
+ unsigned int stride = bpp * pGD -> winSizeX;
+
+ srcAddr = (src_y * stride) + (src_x * bpp);
+ dstAddr = (dst_y * stride) + (dst_x * bpp);
+
+ Epson_wait_idle ();
+
+ writeByte(BLT_ROP,0x0C); // source
+ writeByte(BLT_OP,0x02);// move blit in positive direction with ROP
+ writeWord(BLT_MEM_OFF0, stride / 2);
+ if (pGD -> gdfIndex == GDF__8BIT_INDEX) {
+ writeByte(BLT_CTRL1,0x00);
+ }
+ else {
+ writeByte(BLT_CTRL1,0x01);
+ }
+
+ writeWord(BLT_WIDTH0,(dim_x - 1));
+ writeWord(BLT_HEIGHT0,(dim_y - 1));
+
+ /* set up blit registers */
+ writeByte(BLT_SRC_ADDR0,srcAddr);
+ writeByte(BLT_SRC_ADDR1,srcAddr>>8);
+ writeByte(BLT_SRC_ADDR2,srcAddr>>16);
+
+ writeByte(BLT_DST_ADDR0,dstAddr);
+ writeByte(BLT_DST_ADDR1,dstAddr>>8);
+ writeByte(BLT_DST_ADDR2,dstAddr>>16);
+
+ /* Engage the blt engine */
+ /* rectangular region for src and dst */
+ writeByte(BLT_CTRL0,0x80);
+
+ /* wait untill current blits finished */
+ Epson_wait_idle ();
+}
+/*-----------------------------------------------------------------------------
+ * video_hw_rectfill --
+ *-----------------------------------------------------------------------------
+ */
+void video_hw_rectfill (
+ unsigned int bpp, /* bytes per pixel */
+ unsigned int dst_x, /* dest pos x */
+ unsigned int dst_y, /* dest pos y */
+ unsigned int dim_x, /* frame width */
+ unsigned int dim_y, /* frame height */
+ unsigned int color /* fill color */
+ )
+{
+ register GraphicDevice *pGD = (GraphicDevice *)&sed13806;
+ unsigned long dstAddr;
+ unsigned int stride = bpp * pGD -> winSizeX;
+
+ dstAddr = (dst_y * stride) + (dst_x * bpp);
+
+ Epson_wait_idle ();
+
+ /* set up blit registers */
+ writeByte(BLT_DST_ADDR0,dstAddr);
+ writeByte(BLT_DST_ADDR1,dstAddr>>8);
+ writeByte(BLT_DST_ADDR2,dstAddr>>16);
+
+ writeWord(BLT_WIDTH0,(dim_x - 1));
+ writeWord(BLT_HEIGHT0,(dim_y - 1));
+ writeWord(BLT_FGCOLOR0,color);
+
+ writeByte(BLT_OP,0x0C); /* solid fill */
+ writeWord(BLT_MEM_OFF0,stride / 2);
+
+ if (pGD -> gdfIndex == GDF__8BIT_INDEX) {
+ writeByte(BLT_CTRL1,0x00);
+ }
+ else {
+ writeByte(BLT_CTRL1,0x01);
+ }
+
+ /* Engage the blt engine */
+ /* rectangular region for src and dst */
+ writeByte(BLT_CTRL0,0x80);
+
+ /* wait untill current blits finished */
+ Epson_wait_idle ();
+}
+
+/*-----------------------------------------------------------------------------
+ * video_set_lut --
+ *-----------------------------------------------------------------------------
+ */
+void video_set_lut (
+ unsigned int index, /* color number */
+ unsigned char r, /* red */
+ unsigned char g, /* green */
+ unsigned char b /* blue */
+ )
+{
+ writeByte(REG_LUT_ADDR, index );
+ writeByte(REG_LUT_DATA, r);
+ writeByte(REG_LUT_DATA, g);
+ writeByte(REG_LUT_DATA, b);
+}
+#ifdef CONFIG_VIDEO_HW_CURSOR
+/*-----------------------------------------------------------------------------
+ * video_set_hw_cursor --
+ *-----------------------------------------------------------------------------
+ */
+void video_set_hw_cursor (int x, int y)
+{
+ writeByte (LCD_CURSOR_XL, (x & 0xff));
+ writeByte (LCD_CURSOR_XM, (x >> 8));
+ writeByte (LCD_CURSOR_YL, (y & 0xff));
+ writeByte (LCD_CURSOR_YM, (y >> 8));
+}
+
+/*-----------------------------------------------------------------------------
+ * video_init_hw_cursor --
+ *-----------------------------------------------------------------------------
+ */
+void video_init_hw_cursor (int font_width, int font_height)
+{
+ volatile unsigned char *ptr;
+ unsigned char pattern;
+ int i;
+
+
+ /* Init cursor content
+ Cursor size is 64x64 pixels
+ Start of the cursor memory depends on panel type (dual panel ...) */
+ if ((i = readByte (LCD_CURSOR_START)) == 0) {
+ ptr = (unsigned char *)(sed13806.frameAdrs + DEFAULT_VIDEO_MEMORY_SIZE - HWCURSORSIZE);
+ }
+ else {
+ ptr = (unsigned char *)(sed13806.frameAdrs + DEFAULT_VIDEO_MEMORY_SIZE - (i * 8192));
+ }
+
+ /* Fill the first line and the first empty line after cursor */
+ for (i = 0, pattern = 0; i < 64; i++) {
+ if (i < font_width) {
+ /* Invert background */
+ pattern |= 0x3;
+
+ }
+ else {
+ /* Background */
+ pattern |= 0x2;
+ }
+ if ((i & 3) == 3) {
+ *ptr = pattern;
+ *(ptr + font_height * 16) = 0xaa;
+ ptr ++;
+ pattern = 0;
+ }
+ pattern <<= 2;
+ }
+
+ /* Duplicate this line */
+ for (i = 1; i < font_height; i++) {
+ memcpy ((void *)ptr, (void *)(ptr - 16), 16);
+ ptr += 16;
+ }
+
+ for (; i < 64; i++) {
+ memcpy ((void *)(ptr + 16), (void *)ptr, 16);
+ ptr += 16;
+ }
+
+ /* Select cursor mode */
+ writeByte (LCD_CURSOR_CNTL, 1);
+}
+#endif
+#endif
generated by cgit v1.1 at 2024-11-21 16:47:48 +0000