11da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 21da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * linux/drivers/video/kyro/STG4000OverlayDevice.c 31da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 41da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Copyright (C) 2000 Imagination Technologies Ltd 51da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Copyright (C) 2002 STMicroelectronics 61da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 71da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This file is subject to the terms and conditions of the GNU General Public 81da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * License. See the file COPYING in the main directory of this archive 91da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * for more details. 101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/kernel.h> 131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/errno.h> 141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/types.h> 151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include "STG4000Reg.h" 17a0aa7d0639277f375989071fb52a7ce78beeef97Adrian Bunk#include "STG4000Interface.h" 181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* HW Defines */ 201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define STG4000_NO_SCALING 0x800 221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define STG4000_NO_DECIMATION 0xFFFFFFFF 231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Primary surface */ 251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define STG4000_PRIM_NUM_PIX 5 261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define STG4000_PRIM_ALIGN 4 271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define STG4000_PRIM_ADDR_BITS 20 281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define STG4000_PRIM_MIN_WIDTH 640 301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define STG4000_PRIM_MAX_WIDTH 1600 311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define STG4000_PRIM_MIN_HEIGHT 480 321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define STG4000_PRIM_MAX_HEIGHT 1200 331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Overlay surface */ 351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define STG4000_OVRL_NUM_PIX 4 361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define STG4000_OVRL_ALIGN 2 371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define STG4000_OVRL_ADDR_BITS 20 381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define STG4000_OVRL_NUM_MODES 5 391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define STG4000_OVRL_MIN_WIDTH 0 411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define STG4000_OVRL_MAX_WIDTH 720 421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define STG4000_OVRL_MIN_HEIGHT 0 431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define STG4000_OVRL_MAX_HEIGHT 576 441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Decimation and Scaling */ 461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic u32 adwDecim8[33] = { 471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 0xffffffff, 0xfffeffff, 0xffdffbff, 0xfefefeff, 0xfdf7efbf, 481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 0xfbdf7bdf, 0xf7bbddef, 0xeeeeeeef, 0xeeddbb77, 0xedb76db7, 491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 0xdb6db6db, 0xdb5b5b5b, 0xdab5ad6b, 0xd5ab55ab, 0xd555aaab, 501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 0xaaaaaaab, 0xaaaa5555, 0xaa952a55, 0xa94a5295, 0xa5252525, 511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 0xa4924925, 0x92491249, 0x91224489, 0x91111111, 0x90884211, 521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 0x88410821, 0x88102041, 0x81010101, 0x80800801, 0x80010001, 531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 0x80000001, 0x00000001, 0x00000000 541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldstypedef struct _OVRL_SRC_DEST { 571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /*clipped on-screen pixel position of overlay */ 581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 ulDstX1; 591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 ulDstY1; 601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 ulDstX2; 611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 ulDstY2; 621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /*clipped pixel pos of source data within buffer thses need to be 128 bit word aligned */ 641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 ulSrcX1; 651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 ulSrcY1; 661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 ulSrcX2; 671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 ulSrcY2; 681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* on-screen pixel position of overlay */ 701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds s32 lDstX1; 711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds s32 lDstY1; 721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds s32 lDstX2; 731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds s32 lDstY2; 741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} OVRL_SRC_DEST; 751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic u32 ovlWidth, ovlHeight, ovlStride; 771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int ovlLinear; 781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsvoid ResetOverlayRegisters(volatile STG4000REG __iomem *pSTGReg) 801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 tmp; 821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Set Overlay address to default */ 841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tmp = STG_READ_REG(DACOverlayAddr); 851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds CLEAR_BITS_FRM_TO(0, 20); 861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds CLEAR_BIT(31); 871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds STG_WRITE_REG(DACOverlayAddr, tmp); 881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Set Overlay U address */ 901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tmp = STG_READ_REG(DACOverlayUAddr); 911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds CLEAR_BITS_FRM_TO(0, 20); 921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds STG_WRITE_REG(DACOverlayUAddr, tmp); 931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Set Overlay V address */ 951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tmp = STG_READ_REG(DACOverlayVAddr); 961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds CLEAR_BITS_FRM_TO(0, 20); 971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds STG_WRITE_REG(DACOverlayVAddr, tmp); 981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Set Overlay Size */ 1001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tmp = STG_READ_REG(DACOverlaySize); 1011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds CLEAR_BITS_FRM_TO(0, 10); 1021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds CLEAR_BITS_FRM_TO(12, 31); 1031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds STG_WRITE_REG(DACOverlaySize, tmp); 1041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Set Overlay Vt Decimation */ 1061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tmp = STG4000_NO_DECIMATION; 1071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds STG_WRITE_REG(DACOverlayVtDec, tmp); 1081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Set Overlay format to default value */ 1101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tmp = STG_READ_REG(DACPixelFormat); 1111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds CLEAR_BITS_FRM_TO(4, 7); 1121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds CLEAR_BITS_FRM_TO(16, 22); 1131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds STG_WRITE_REG(DACPixelFormat, tmp); 1141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Set Vertical scaling to default */ 1161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tmp = STG_READ_REG(DACVerticalScal); 1171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds CLEAR_BITS_FRM_TO(0, 11); 1181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds CLEAR_BITS_FRM_TO(16, 22); 1191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tmp |= STG4000_NO_SCALING; /* Set to no scaling */ 1201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds STG_WRITE_REG(DACVerticalScal, tmp); 1211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Set Horizontal Scaling to default */ 1231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tmp = STG_READ_REG(DACHorizontalScal); 1241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds CLEAR_BITS_FRM_TO(0, 11); 1251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds CLEAR_BITS_FRM_TO(16, 17); 1261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tmp |= STG4000_NO_SCALING; /* Set to no scaling */ 1271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds STG_WRITE_REG(DACHorizontalScal, tmp); 1281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Set Blend mode to Alpha Blend */ 1301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* ????? SG 08/11/2001 Surely this isn't the alpha blend mode, 1311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hopefully its overwrite 1321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tmp = STG_READ_REG(DACBlendCtrl); 1341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds CLEAR_BITS_FRM_TO(0, 30); 1351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tmp = (GRAPHICS_MODE << 28); 1361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds STG_WRITE_REG(DACBlendCtrl, tmp); 1371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint CreateOverlaySurface(volatile STG4000REG __iomem *pSTGReg, 1411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 inWidth, 1421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 inHeight, 1431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int bLinear, 1441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 ulOverlayOffset, 1451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 * retStride, u32 * retUVStride) 1461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 tmp; 1481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 ulStride; 1491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (inWidth > STG4000_OVRL_MAX_WIDTH || 1511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds inHeight > STG4000_OVRL_MAX_HEIGHT) { 1521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EINVAL; 1531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Stride in 16 byte words - 16Bpp */ 1561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (bLinear) { 1571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Format is 16bits so num 16 byte words is width/8 */ 1581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((inWidth & 0x7) == 0) { /* inWidth % 8 */ 1591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ulStride = (inWidth / 8); 1601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 1611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Round up to next 16byte boundary */ 1621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ulStride = ((inWidth + 8) / 8); 1631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 1651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Y component is 8bits so num 16 byte words is width/16 */ 1661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((inWidth & 0xf) == 0) { /* inWidth % 16 */ 1671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ulStride = (inWidth / 16); 1681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 1691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Round up to next 16byte boundary */ 1701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ulStride = ((inWidth + 16) / 16); 1711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Set Overlay address and Format mode */ 1761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tmp = STG_READ_REG(DACOverlayAddr); 1771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds CLEAR_BITS_FRM_TO(0, 20); 1781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (bLinear) { 1791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds CLEAR_BIT(31); /* Overlay format to Linear */ 1801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 1811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tmp |= SET_BIT(31); /* Overlay format to Planer */ 1821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Only bits 24:4 of the Overlay address */ 1851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tmp |= (ulOverlayOffset >> 4); 1861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds STG_WRITE_REG(DACOverlayAddr, tmp); 1871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!bLinear) { 1891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 uvSize = 1901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (inWidth & 0x1) ? (inWidth + 1 / 2) : (inWidth / 2); 1911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 uvStride; 1921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 ulOffset; 1931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Y component is 8bits so num 32 byte words is width/32 */ 1941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((uvSize & 0xf) == 0) { /* inWidth % 16 */ 1951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds uvStride = (uvSize / 16); 1961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 1971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Round up to next 32byte boundary */ 1981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds uvStride = ((uvSize + 16) / 16); 1991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 2001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ulOffset = ulOverlayOffset + (inHeight * (ulStride * 16)); 2021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Align U,V data to 32byte boundary */ 2031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((ulOffset & 0x1f) != 0) 2041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ulOffset = (ulOffset + 32L) & 0xffffffE0L; 2051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tmp = STG_READ_REG(DACOverlayUAddr); 2071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds CLEAR_BITS_FRM_TO(0, 20); 2081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tmp |= (ulOffset >> 4); 2091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds STG_WRITE_REG(DACOverlayUAddr, tmp); 2101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ulOffset += (inHeight / 2) * (uvStride * 16); 2121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Align U,V data to 32byte boundary */ 2131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((ulOffset & 0x1f) != 0) 2141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ulOffset = (ulOffset + 32L) & 0xffffffE0L; 2151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tmp = STG_READ_REG(DACOverlayVAddr); 2171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds CLEAR_BITS_FRM_TO(0, 20); 2181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tmp |= (ulOffset >> 4); 2191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds STG_WRITE_REG(DACOverlayVAddr, tmp); 2201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds *retUVStride = uvStride * 16; 2221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 2231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Set Overlay YUV pixel format 2261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Make sure that LUT not used - ?????? 2271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 2281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tmp = STG_READ_REG(DACPixelFormat); 2291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Only support Planer or UYVY linear formats */ 2301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds CLEAR_BITS_FRM_TO(4, 9); 2311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds STG_WRITE_REG(DACPixelFormat, tmp); 2321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ovlWidth = inWidth; 2341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ovlHeight = inHeight; 2351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ovlStride = ulStride; 2361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ovlLinear = bLinear; 2371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds *retStride = ulStride << 4; /* In bytes */ 2381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 2401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint SetOverlayBlendMode(volatile STG4000REG __iomem *pSTGReg, 2431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds OVRL_BLEND_MODE mode, 2441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 ulAlpha, u32 ulColorKey) 2451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 tmp; 2471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tmp = STG_READ_REG(DACBlendCtrl); 2491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds CLEAR_BITS_FRM_TO(28, 30); 2501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tmp |= (mode << 28); 2511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (mode) { 2531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case COLOR_KEY: 2541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds CLEAR_BITS_FRM_TO(0, 23); 2551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tmp |= (ulColorKey & 0x00FFFFFF); 2561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 2571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case GLOBAL_ALPHA: 2591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds CLEAR_BITS_FRM_TO(24, 27); 2601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tmp |= ((ulAlpha & 0xF) << 24); 2611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 2621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case CK_PIXEL_ALPHA: 2641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds CLEAR_BITS_FRM_TO(0, 23); 2651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tmp |= (ulColorKey & 0x00FFFFFF); 2661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 2671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case CK_GLOBAL_ALPHA: 2691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds CLEAR_BITS_FRM_TO(0, 23); 2701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tmp |= (ulColorKey & 0x00FFFFFF); 2711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds CLEAR_BITS_FRM_TO(24, 27); 2721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tmp |= ((ulAlpha & 0xF) << 24); 2731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 2741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case GRAPHICS_MODE: 2761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case PER_PIXEL_ALPHA: 2771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 2781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds default: 2801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EINVAL; 2811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 2821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds STG_WRITE_REG(DACBlendCtrl, tmp); 2841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 2861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsvoid EnableOverlayPlane(volatile STG4000REG __iomem *pSTGReg) 2891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 tmp; 2911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Enable Overlay */ 2921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tmp = STG_READ_REG(DACPixelFormat); 2931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tmp |= SET_BIT(7); 2941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds STG_WRITE_REG(DACPixelFormat, tmp); 2951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Set video stream control */ 2971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tmp = STG_READ_REG(DACStreamCtrl); 2981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tmp |= SET_BIT(1); /* video stream */ 2991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds STG_WRITE_REG(DACStreamCtrl, tmp); 3001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 3011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic u32 Overlap(u32 ulBits, u32 ulPattern) 3031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 3041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 ulCount = 0; 3051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while (ulBits) { 3071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!(ulPattern & 1)) 3081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ulCount++; 3091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ulBits--; 3101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ulPattern = ulPattern >> 1; 3111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 3121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return ulCount; 3141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 3161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint SetOverlayViewPort(volatile STG4000REG __iomem *pSTGReg, 3181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 left, u32 top, 3191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 right, u32 bottom) 3201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 3211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds OVRL_SRC_DEST srcDest; 3221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 ulSrcTop, ulSrcBottom; 3241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 ulSrc, ulDest; 3251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 ulFxScale, ulFxOffset; 3261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 ulHeight, ulWidth; 3271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 ulPattern; 3281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 ulDecimate, ulDecimated; 3291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 ulApplied; 3301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 ulDacXScale, ulDacYScale; 3311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 ulScale; 3321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 ulLeft, ulRight; 3331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 ulSrcLeft, ulSrcRight; 3341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 ulScaleLeft, ulScaleRight; 3351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 ulhDecim; 3361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 ulsVal; 3371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 ulVertDecFactor; 3381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int bResult; 3391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 ulClipOff = 0; 3401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 ulBits = 0; 3411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 ulsAdd = 0; 3421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 tmp, ulStride; 3431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 ulExcessPixels, ulClip, ulExtraLines; 3441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds srcDest.ulSrcX1 = 0; 3471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds srcDest.ulSrcY1 = 0; 3481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds srcDest.ulSrcX2 = ovlWidth - 1; 3491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds srcDest.ulSrcY2 = ovlHeight - 1; 3501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds srcDest.ulDstX1 = left; 3521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds srcDest.ulDstY1 = top; 3531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds srcDest.ulDstX2 = right; 3541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds srcDest.ulDstY2 = bottom; 3551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds srcDest.lDstX1 = srcDest.ulDstX1; 3571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds srcDest.lDstY1 = srcDest.ulDstY1; 3581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds srcDest.lDstX2 = srcDest.ulDstX2; 3591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds srcDest.lDstY2 = srcDest.ulDstY2; 3601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /************* Vertical decimation/scaling ******************/ 3621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Get Src Top and Bottom */ 3641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ulSrcTop = srcDest.ulSrcY1; 3651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ulSrcBottom = srcDest.ulSrcY2; 3661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ulSrc = ulSrcBottom - ulSrcTop; 3681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ulDest = srcDest.lDstY2 - srcDest.lDstY1; /* on-screen overlay */ 3691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ulSrc <= 1) 3711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EINVAL; 3721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* First work out the position we are to display as offset from the 3741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * source of the buffer 3751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 3761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ulFxScale = (ulDest << 11) / ulSrc; /* fixed point scale factor */ 3771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ulFxOffset = (srcDest.lDstY2 - srcDest.ulDstY2) << 11; 3781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ulSrcBottom = ulSrcBottom - (ulFxOffset / ulFxScale); 3801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ulSrc = ulSrcBottom - ulSrcTop; 3811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ulHeight = ulSrc; 3821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ulDest = srcDest.ulDstY2 - (srcDest.ulDstY1 - 1); 3841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ulPattern = adwDecim8[ulBits]; 3851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* At this point ulSrc represents the input decimator */ 3871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ulSrc > ulDest) { 3881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ulDecimate = ulSrc - ulDest; 3891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ulBits = 0; 3901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ulApplied = ulSrc / 32; 3911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while (((ulBits * ulApplied) + 3931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds Overlap((ulSrc % 32), 3941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds adwDecim8[ulBits])) < ulDecimate) 3951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ulBits++; 3961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ulPattern = adwDecim8[ulBits]; 3981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ulDecimated = 3991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (ulBits * ulApplied) + Overlap((ulSrc % 32), 4001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ulPattern); 4011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ulSrc = ulSrc - ulDecimated; /* the number number of lines that will go into the scaler */ 4021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 4031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ulBits && (ulBits != 32)) { 4051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ulVertDecFactor = (63 - ulBits) / (32 - ulBits); /* vertical decimation factor scaled up to nearest integer */ 4061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 4071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ulVertDecFactor = 1; 4081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 4091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ulDacYScale = ((ulSrc - 1) * 2048) / (ulDest + 1); 4111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tmp = STG_READ_REG(DACOverlayVtDec); /* Decimation */ 4131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds CLEAR_BITS_FRM_TO(0, 31); 4141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tmp = ulPattern; 4151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds STG_WRITE_REG(DACOverlayVtDec, tmp); 4161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /***************** Horizontal decimation/scaling ***************************/ 4181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 42025985edcedea6396277003854657b5f3cb31a628Lucas De Marchi * Now we handle the horizontal case, this is a simplified version of 4211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * the vertical case in that we decimate by factors of 2. as we are 4221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * working in words we should always be able to decimate by these 4231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * factors. as we always have to have a buffer which is aligned to a 4241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * whole number of 128 bit words, we must align the left side to the 4251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * lowest to the next lowest 128 bit boundary, and the right hand edge 4261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * to the next largets boundary, (in a similar way to how we didi it in 4271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * PMX1) as the left and right hand edges are aligned to these 4281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * boundaries normally this only becomes an issue when we are chopping 4291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * of one of the sides We shall work out vertical stuff first 4301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 4311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ulSrc = srcDest.ulSrcX2 - srcDest.ulSrcX1; 4321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ulDest = srcDest.lDstX2 - srcDest.lDstX1; 4331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef _OLDCODE 4341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ulLeft = srcDest.ulDstX1; 4351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ulRight = srcDest.ulDstX2; 4361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#else 4371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (srcDest.ulDstX1 > 2) { 4381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ulLeft = srcDest.ulDstX1 + 2; 4391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ulRight = srcDest.ulDstX2 + 1; 4401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 4411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ulLeft = srcDest.ulDstX1; 4421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ulRight = srcDest.ulDstX2 + 1; 4431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 4441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 4451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* first work out the position we are to display as offset from the source of the buffer */ 4461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds bResult = 1; 4471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds do { 4491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ulDest == 0) 4501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EINVAL; 4511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* source pixels per dest pixel <<11 */ 4531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ulFxScale = ((ulSrc - 1) << 11) / (ulDest); 4541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* then number of destination pixels out we are */ 4561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ulFxOffset = ulFxScale * ((srcDest.ulDstX1 - srcDest.lDstX1) + ulClipOff); 4571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ulFxOffset >>= 11; 4581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* this replaces the code which was making a decision as to use either ulFxOffset or ulSrcX1 */ 4601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ulSrcLeft = srcDest.ulSrcX1 + ulFxOffset; 4611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* then number of destination pixels out we are */ 4631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ulFxOffset = ulFxScale * (srcDest.lDstX2 - srcDest.ulDstX2); 4641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ulFxOffset >>= 11; 4651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ulSrcRight = srcDest.ulSrcX2 - ulFxOffset; 4671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 4691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * we must align these to our 128 bit boundaries. we shall 4701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * round down the pixel pos to the nearest 8 pixels. 4711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 4721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ulScaleLeft = ulSrcLeft; 4731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ulScaleRight = ulSrcRight; 4741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* shift fxscale until it is in the range of the scaler */ 4761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ulhDecim = 0; 4771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ulScale = (((ulSrcRight - ulSrcLeft) - 1) << (11 - ulhDecim)) / (ulRight - ulLeft + 2); 4781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while (ulScale > 0x800) { 4801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ulhDecim++; 4811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ulScale = (((ulSrcRight - ulSrcLeft) - 1) << (11 - ulhDecim)) / (ulRight - ulLeft + 2); 4821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 4831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 4851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * to try and get the best values We first try and use 4861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * src/dwdest for the scale factor, then we move onto src-1 4871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 4881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * we want to check to see if we will need to clip data, if so 4891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * then we should clip our source so that we don't need to 4901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 4911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!ovlLinear) { 4921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ulSrcLeft &= ~0x1f; 4931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 4951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * we must align the right hand edge to the next 32 4961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * pixel` boundary, must be on a 256 boundary so u, and 4971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * v are 128 bit aligned 4981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 4991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ulSrcRight = (ulSrcRight + 0x1f) & ~0x1f; 5001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 5011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ulSrcLeft &= ~0x7; 5021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 5041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * we must align the right hand edge to the next 5051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 8pixel` boundary 5061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 5071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ulSrcRight = (ulSrcRight + 0x7) & ~0x7; 5081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 5091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* this is the input size line store needs to cope with */ 5111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ulWidth = ulSrcRight - ulSrcLeft; 5121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 5141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * use unclipped value to work out scale factror this is the 5151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * scale factor we want we shall now work out the horizonal 5161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * decimation and scaling 5171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 5181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ulsVal = ((ulWidth / 8) >> ulhDecim); 5191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((ulWidth != (ulsVal << ulhDecim) * 8)) 5211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ulsAdd = 1; 5221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* input pixels to scaler; */ 5241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ulSrc = ulWidth >> ulhDecim; 5251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ulSrc <= 2) 5271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EINVAL; 5281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ulExcessPixels = ((((ulScaleLeft - ulSrcLeft)) << (11 - ulhDecim)) / ulScale); 5301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ulClip = (ulSrc << 11) / ulScale; 5321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ulClip -= (ulRight - ulLeft); 5331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ulClip += ulExcessPixels; 5341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ulClip) 5361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ulClip--; 5371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* We may need to do more here if we really have a HW rev < 5 */ 5391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } while (!bResult); 5401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ulExtraLines = (1 << ulhDecim) * ulVertDecFactor; 5421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ulExtraLines += 64; 5431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ulHeight += ulExtraLines; 5441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ulDacXScale = ulScale; 5461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tmp = STG_READ_REG(DACVerticalScal); 5491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds CLEAR_BITS_FRM_TO(0, 11); 5501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds CLEAR_BITS_FRM_TO(16, 22); /* Vertical Scaling */ 5511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Calculate new output line stride, this is always the number of 422 5531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds words in the line buffer, so it doesn't matter if the 5541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mode is 420. Then set the vertical scale register. 5551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 5561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ulStride = (ulWidth >> (ulhDecim + 3)) + ulsAdd; 5571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tmp |= ((ulStride << 16) | (ulDacYScale)); /* DAC_LS_CTRL = stride */ 5581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds STG_WRITE_REG(DACVerticalScal, tmp); 5591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Now set up the overlay size using the modified width and height 5611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds from decimate and scaling calculations 5621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 5631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tmp = STG_READ_REG(DACOverlaySize); 5641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds CLEAR_BITS_FRM_TO(0, 10); 5651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds CLEAR_BITS_FRM_TO(12, 31); 5661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ovlLinear) { 5681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tmp |= 5691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (ovlStride | ((ulHeight + 1) << 12) | 5701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (((ulWidth / 8) - 1) << 23)); 5711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 5721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tmp |= 5731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (ovlStride | ((ulHeight + 1) << 12) | 5741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (((ulWidth / 32) - 1) << 23)); 5751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 5761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds STG_WRITE_REG(DACOverlaySize, tmp); 5781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Set Video Window Start */ 5801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tmp = ((ulLeft << 16)) | (srcDest.ulDstY1); 5811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds STG_WRITE_REG(DACVidWinStart, tmp); 5821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Set Video Window End */ 5841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tmp = ((ulRight) << 16) | (srcDest.ulDstY2); 5851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds STG_WRITE_REG(DACVidWinEnd, tmp); 5861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Finally set up the rest of the overlay regs in the order 5881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds done in the IMG driver 5891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 5901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tmp = STG_READ_REG(DACPixelFormat); 5911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tmp = ((ulExcessPixels << 16) | tmp) & 0x7fffffff; 5921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds STG_WRITE_REG(DACPixelFormat, tmp); 5931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tmp = STG_READ_REG(DACHorizontalScal); 5951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds CLEAR_BITS_FRM_TO(0, 11); 5961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds CLEAR_BITS_FRM_TO(16, 17); 5971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tmp |= ((ulhDecim << 16) | (ulDacXScale)); 5981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds STG_WRITE_REG(DACHorizontalScal, tmp); 5991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 6011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 602