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u-boot/drivers/smiLynxEM.c
Wolfgang Denk 77ddac9480 Cleanup for GCC-4.x
2005-10-13 16:45:02 +02:00

858 lines
24 KiB
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/*
* (C) Copyright 1997-2002 ELTEC Elektronik AG
* Frank Gottschling <fgottschling@eltec.de>
*
* 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
*/
/*
* smiLynxEM.c
*
* Silicon Motion graphic interface for sm810/sm710/sm712 accelerator
*
* modification history
* --------------------
* 04-18-2002 Rewritten for U-Boot <fgottschling@eltec.de>.
*
* 18-03-2004 - Unify videomodes handling with the ct69000
* - The video output can be set via the variable "videoout"
* in the environment.
* videoout=1 output on LCD
* videoout=2 output on CRT (default value)
* <p.aubert@staubli.com>
*/
#include <common.h>
#if defined(CONFIG_VIDEO_SMI_LYNXEM)
#include <pci.h>
#include <video_fb.h>
#include "videomodes.h"
/*
* Export Graphic Device
*/
GraphicDevice smi;
/*
* SMI 710/712 have 4MB internal RAM; SMI 810 2MB internal + 2MB external
*/
#define VIDEO_MEM_SIZE 0x400000
/*
* ISA mapped regs
*/
#define SMI_INDX_C4 (pGD->isaBase + 0x03c4) /* index reg */
#define SMI_DATA_C5 (pGD->isaBase + 0x03c5) /* data reg */
#define SMI_INDX_D4 (pGD->isaBase + 0x03d4) /* index reg */
#define SMI_DATA_D5 (pGD->isaBase + 0x03d5) /* data reg */
#define SMI_ISR1 (pGD->isaBase + 0x03ca)
#define SMI_INDX_CE (pGD->isaBase + 0x03ce) /* index reg */
#define SMI_DATA_CF (pGD->isaBase + 0x03cf) /* data reg */
#define SMI_LOCK_REG (pGD->isaBase + 0x03c3) /* unlock/lock ext crt reg */
#define SMI_MISC_REG (pGD->isaBase + 0x03c2) /* misc reg */
#define SMI_LUT_MASK (pGD->isaBase + 0x03c6) /* lut mask reg */
#define SMI_LUT_START (pGD->isaBase + 0x03c8) /* lut start index */
#define SMI_LUT_RGB (pGD->isaBase + 0x03c9) /* lut colors auto incr.*/
#define SMI_INDX_ATTR (pGD->isaBase + 0x03c0) /* attributes index reg */
/*
* Video processor control
*/
typedef struct {
unsigned int control;
unsigned int colorKey;
unsigned int colorKeyMask;
unsigned int start;
unsigned short offset;
unsigned short width;
unsigned int fifoPrio;
unsigned int fifoERL;
unsigned int YUVtoRGB;
} SmiVideoProc;
/*
* Video window control
*/
typedef struct {
unsigned short top;
unsigned short left;
unsigned short bottom;
unsigned short right;
unsigned int srcStart;
unsigned short width;
unsigned short offset;
unsigned char hStretch;
unsigned char vStretch;
} SmiVideoWin;
/*
* Capture port control
*/
typedef struct {
unsigned int control;
unsigned short topClip;
unsigned short leftClip;
unsigned short srcHeight;
unsigned short srcWidth;
unsigned int srcBufStart1;
unsigned int srcBufStart2;
unsigned short srcOffset;
unsigned short fifoControl;
} SmiCapturePort;
/*
* Register values for common video modes
*/
static char SMI_SCR[] = {
/* all modes */
0x10, 0xff, 0x11, 0xff, 0x12, 0xff, 0x13, 0xff, 0x15, 0x90,
0x17, 0x20, 0x18, 0xb1, 0x19, 0x00,
};
static char SMI_EXT_CRT[] = {
0x31, 0x00, 0x32, 0x00, 0x33, 0x00, 0x34, 0x00, 0x35, 0x00,
0x36, 0x00, 0x3b, 0x00, 0x3c, 0x00, 0x3d, 0x00, 0x3e, 0x00, 0x3f, 0x00,
};
static char SMI_ATTR [] = {
0x00, 0x00, 0x01, 0x01, 0x02, 0x02, 0x03, 0x03, 0x04, 0x04, 0x05, 0x05,
0x06, 0x06, 0x07, 0x07, 0x08, 0x08, 0x09, 0x09, 0x0a, 0x0a, 0x0b, 0x0b,
0x0c, 0x0c, 0x0d, 0x0d, 0x0e, 0x0e, 0x0f, 0x0f, 0x10, 0x41, 0x11, 0x00,
0x12, 0x0f, 0x13, 0x00, 0x14, 0x00,
};
static char SMI_GCR[18] = {
0x00, 0x00, 0x01, 0x00, 0x02, 0x00, 0x03, 0x00, 0x04, 0x00, 0x05, 0x40,
0x06, 0x05, 0x07, 0x0f, 0x08, 0xff,
};
static char SMI_SEQR[] = {
0x00, 0x00, 0x01, 0x01, 0x02, 0x0f, 0x03, 0x03, 0x04, 0x0e, 0x00, 0x03,
};
static char SMI_PCR [] = {
0x20, 0x04, 0x21, 0x30, 0x22, 0x00, 0x23, 0x00, 0x24, 0x00,
};
static char SMI_MCR[] = {
0x60, 0x01, 0x61, 0x00,
#ifdef CONFIG_HMI1001
0x62, 0x74, /* Memory type is not configured by pins on HMI1001 */
#endif
};
static char SMI_HCR[] = {
0x80, 0xff, 0x81, 0x07, 0x82, 0x00, 0x83, 0xff, 0x84, 0xff, 0x88, 0x00,
0x89, 0x02, 0x8a, 0x80, 0x8b, 0x01, 0x8c, 0xff, 0x8d, 0x00,
};
/*******************************************************************************
*
* Write SMI ISA register
*/
static void smiWrite (unsigned short index, char reg, char val)
{
register GraphicDevice *pGD = (GraphicDevice *)&smi;
out8 ((pGD->isaBase + index), reg);
out8 ((pGD->isaBase + index + 1), val);
}
/*******************************************************************************
*
* Write a table of SMI ISA register
*/
static void smiLoadRegs (
unsigned int iReg,
unsigned int dReg,
char *regTab,
unsigned int tabSize
)
{
register GraphicDevice *pGD = (GraphicDevice *)&smi;
register int i;
for (i=0; i<tabSize; i+=2) {
if (iReg == SMI_INDX_ATTR) {
/* Reset the Flip Flop */
in8 (SMI_ISR1);
out8 (iReg, regTab[i]);
out8 (iReg, regTab[i+1]);
} else {
out8 (iReg, regTab[i]);
out8 (dReg, regTab[i+1]);
}
}
}
/*******************************************************************************
*
* Init capture port registers
*/
static void smiInitCapturePort (void)
{
SmiCapturePort smiCP = { 0x01400600, 0x30, 0x40, 480, 640, 0, 0, 2560, 6 };
register GraphicDevice *pGD = (GraphicDevice *)&smi;
register SmiCapturePort *pCP = (SmiCapturePort *)&smiCP;
out32r ((pGD->cprBase + 0x0004), ((pCP->topClip<<16) | pCP->leftClip));
out32r ((pGD->cprBase + 0x0008), ((pCP->srcHeight<<16) | pCP->srcWidth));
out32r ((pGD->cprBase + 0x000c), pCP->srcBufStart1/8);
out32r ((pGD->cprBase + 0x0010), pCP->srcBufStart2/8);
out32r ((pGD->cprBase + 0x0014), pCP->srcOffset/8);
out32r ((pGD->cprBase + 0x0018), pCP->fifoControl);
out32r ((pGD->cprBase + 0x0000), pCP->control);
}
/*******************************************************************************
*
* Init video processor registers
*/
static void smiInitVideoProcessor (void)
{
SmiVideoProc smiVP = { 0x100000, 0, 0, 0, 0, 1600, 0x1200543, 4, 0xededed };
SmiVideoWin smiVW = { 0, 0, 599, 799, 0, 1600, 0, 0, 0 };
register GraphicDevice *pGD = (GraphicDevice *)&smi;
register SmiVideoProc *pVP = (SmiVideoProc *)&smiVP;
register SmiVideoWin *pVWin = (SmiVideoWin *)&smiVW;
pVP->width = pGD->plnSizeX * pGD->gdfBytesPP;
pVP->control |= pGD->gdfIndex << 16;
pVWin->bottom = pGD->winSizeY - 1;
pVWin->right = pGD->winSizeX - 1;
pVWin->width = pVP->width;
/* color key */
out32r ((pGD->vprBase + 0x0004), pVP->colorKey);
/* color key mask */
out32r ((pGD->vprBase + 0x0008), pVP->colorKeyMask);
/* data src start adrs */
out32r ((pGD->vprBase + 0x000c), pVP->start / 8);
/* data width and offset */
out32r ((pGD->vprBase + 0x0010),
((pVP->offset / 8 * pGD->gdfBytesPP) << 16) |
(pGD->plnSizeX / 8 * pGD->gdfBytesPP));
/* video window 1 */
out32r ((pGD->vprBase + 0x0014),
((pVWin->top << 16) | pVWin->left));
out32r ((pGD->vprBase + 0x0018),
((pVWin->bottom << 16) | pVWin->right));
out32r ((pGD->vprBase + 0x001c), pVWin->srcStart / 8);
out32r ((pGD->vprBase + 0x0020),
(((pVWin->offset / 8) << 16) | (pVWin->width / 8)));
out32r ((pGD->vprBase + 0x0024),
(((pVWin->hStretch) << 8) | pVWin->vStretch));
/* video window 2 */
out32r ((pGD->vprBase + 0x0028),
((pVWin->top << 16) | pVWin->left));
out32r ((pGD->vprBase + 0x002c),
((pVWin->bottom << 16) | pVWin->right));
out32r ((pGD->vprBase + 0x0030),
pVWin->srcStart / 8);
out32r ((pGD->vprBase + 0x0034),
(((pVWin->offset / 8) << 16) | (pVWin->width / 8)));
out32r ((pGD->vprBase + 0x0038),
(((pVWin->hStretch) << 8) | pVWin->vStretch));
/* fifo prio control */
out32r ((pGD->vprBase + 0x0054), pVP->fifoPrio);
/* fifo empty request levell */
out32r ((pGD->vprBase + 0x0058), pVP->fifoERL);
/* conversion constant */
out32r ((pGD->vprBase + 0x005c), pVP->YUVtoRGB);
/* vpr control word */
out32r ((pGD->vprBase + 0x0000), pVP->control);
}
/******************************************************************************
*
* Init drawing engine registers
*/
static void smiInitDrawingEngine (void)
{
GraphicDevice *pGD = (GraphicDevice *)&smi;
unsigned int val;
/* don't start now */
out32r ((pGD->dprBase + 0x000c), 0x000f0000);
/* set rop2 to copypen */
val = 0xffff3ff0 & in32r ((pGD->dprBase + 0x000c));
out32r ((pGD->dprBase + 0x000c), (val | 0x8000 | 0x0c));
/* set clip rect */
out32r ((pGD->dprBase + 0x002c), 0);
out32r ((pGD->dprBase + 0x0030),
((pGD->winSizeY<<16) | pGD->winSizeX * pGD->gdfBytesPP ));
/* src row pitch */
val = 0xffff0000 & (in32r ((pGD->dprBase + 0x0010)));
out32r ((pGD->dprBase + 0x0010),
(val | pGD->plnSizeX * pGD->gdfBytesPP));
/* dst row pitch */
val = 0x0000ffff & (in32r ((pGD->dprBase + 0x0010)));
out32r ((pGD->dprBase + 0x0010),
(((pGD->plnSizeX * pGD->gdfBytesPP)<<16) | val));
/* window width src/dst */
out32r ((pGD->dprBase + 0x003c),
(((pGD->plnSizeX * pGD->gdfBytesPP & 0x0fff)<<16) |
(pGD->plnSizeX * pGD->gdfBytesPP & 0x0fff)));
out16r ((pGD->dprBase + 0x001e), 0x0000);
/* src base adrs */
out32r ((pGD->dprBase + 0x0040),
(((pGD->frameAdrs/8) & 0x000fffff)));
/* dst base adrs */
out32r ((pGD->dprBase + 0x0044),
(((pGD->frameAdrs/8) & 0x000fffff)));
/* foreground color */
out32r ((pGD->dprBase + 0x0014), pGD->fg);
/* background color */
out32r ((pGD->dprBase + 0x0018), pGD->bg);
/* xcolor */
out32r ((pGD->dprBase + 0x0020), 0x00ffffff);
/* xcolor mask */
out32r ((pGD->dprBase + 0x0024), 0x00ffffff);
/* bit mask */
out32r ((pGD->dprBase + 0x0028), 0x00ffffff);
/* load mono pattern */
out32r ((pGD->dprBase + 0x0034), 0);
out32r ((pGD->dprBase + 0x0038), 0);
}
static struct pci_device_id supported[] = {
{ PCI_VENDOR_ID_SMI, PCI_DEVICE_ID_SMI_710 },
{ PCI_VENDOR_ID_SMI, PCI_DEVICE_ID_SMI_712 },
{ PCI_VENDOR_ID_SMI, PCI_DEVICE_ID_SMI_810 },
{ }
};
/*****************************************************************************/
static void smiLoadMsr (struct ctfb_res_modes *mode)
{
unsigned char h_synch_high, v_synch_high;
register GraphicDevice *pGD = (GraphicDevice *)&smi;
h_synch_high = (mode->sync & FB_SYNC_HOR_HIGH_ACT) ? 0 : 0x40; /* horizontal Synch High active */
v_synch_high = (mode->sync & FB_SYNC_VERT_HIGH_ACT) ? 0 : 0x80; /* vertical Synch High active */
out8 (SMI_MISC_REG, (h_synch_high | v_synch_high | 0x29));
/* upper64K==0x20, CLC2select==0x08, RAMenable==0x02!(todo), CGA==0x01
* Selects the upper 64KB page.Bit5=1
* CLK2 (left reserved in standard VGA) Bit3|2=1|0
* Disables CPU access to frame buffer. Bit1=0
* Sets the I/O address decode for ST01, FCR, and all CR registers
* to the 3Dx I/O address range (CGA emulation). Bit0=1
*/
}
/*****************************************************************************/
static void smiLoadCrt (struct ctfb_res_modes *var, int bits_per_pixel)
{
unsigned char cr[0x7a];
int i;
unsigned int hd, hs, he, ht, hbs, hbe; /* Horizontal. */
unsigned int vd, vs, ve, vt, vbs, vbe; /* vertical */
unsigned int bpp, wd, dblscan, interlaced;
const int LineCompare = 0x3ff;
unsigned int TextScanLines = 1; /* this is in fact a vertical zoom factor */
register GraphicDevice *pGD = (GraphicDevice *)&smi;
/* Horizontal */
hd = (var->xres) / 8; /* HDisp. */
hs = (var->xres + var->right_margin) / 8; /* HsStrt */
he = (var->xres + var->right_margin + var->hsync_len) / 8; /* HsEnd */
ht = (var->left_margin + var->xres + var->right_margin + var->hsync_len) / 8; /* HTotal */
/* Blank */
hbs = hd;
hbe = 0; /* Blank end at 0 */
/* Vertical */
vd = var->yres; /* VDisplay */
vs = var->yres + var->lower_margin; /* VSyncStart */
ve = var->yres + var->lower_margin + var->vsync_len; /* VSyncEnd */
vt = var->upper_margin + var->yres + var->lower_margin + var->vsync_len; /* VTotal */
vbs = vd;
vbe = 0;
bpp = bits_per_pixel;
dblscan = (var->vmode & FB_VMODE_DOUBLE) ? 1 : 0;
interlaced = var->vmode & FB_VMODE_INTERLACED;
if (bpp == 15)
bpp = 16;
wd = var->xres * bpp / 64; /* double words per line */
if (interlaced) { /* we divide all vertical timings, exept vd */
vs >>= 1;
vbs >>= 1;
ve >>= 1;
vt >>= 1;
}
memset (cr, 0, sizeof (cr));
cr[0x00] = ht - 5;
cr[0x01] = hd - 1;
cr[0x02] = hbs - 1;
cr[0x03] = (hbe & 0x1F);
cr[0x04] = hs;
cr[0x05] = ((hbe & 0x20) << 2) | (he & 0x1f);
cr[0x06] = (vt - 2) & 0xFF;
cr[0x07] = (((vt - 2) & 0x100) >> 8)
| (((vd - 1) & 0x100) >> 7)
| ((vs & 0x100) >> 6)
| (((vbs - 1) & 0x100) >> 5)
| ((LineCompare & 0x100) >> 4)
| (((vt - 2) & 0x200) >> 4)
| (((vd - 1) & 0x200) >> 3)
| ((vs & 0x200) >> 2);
cr[0x30] = ((vt - 2) & 0x400) >> 7
| (((vd - 1) & 0x400) >> 8)
| (((vbs - 1) & 0x400) >> 9)
| ((vs & 0x400) >> 10)
| (interlaced) ? 0x80 : 0;
cr[0x08] = 0x00;
cr[0x09] = (dblscan << 7)
| ((LineCompare & 0x200) >> 3)
| (((vbs - 1) & 0x200) >> 4)
| (TextScanLines - 1);
cr[0x10] = vs & 0xff; /* VSyncPulseStart */
cr[0x11] = (ve & 0x0f);
cr[0x12] = (vd - 1) & 0xff; /* LineCount */
cr[0x13] = wd & 0xff;
cr[0x14] = 0x40;
cr[0x15] = (vbs - 1) & 0xff;
cr[0x16] = vbe & 0xff;
cr[0x17] = 0xe3; /* but it does not work */
cr[0x18] = 0xff & LineCompare;
cr[0x22] = 0x00; /* todo? */
/* now set the registers */
for (i = 0; i <= 0x18; i++) { /*CR00 .. CR18 */
smiWrite (SMI_INDX_D4, i, cr[i]);
}
i = 0x22; /*CR22 */
smiWrite (SMI_INDX_D4, i, cr[i]);
i = 0x30; /*CR30 */
smiWrite (SMI_INDX_D4, i, cr[i]);
}
/*****************************************************************************/
#define REF_FREQ 14318180
#define PMIN 1
#define PMAX 255
#define QMIN 1
#define QMAX 63
static unsigned int FindPQ (unsigned int freq, unsigned int *pp, unsigned int *pq)
{
unsigned int n = QMIN, m = 0;
long long int L = 0, P = freq, Q = REF_FREQ, H = P >> 1;
long long int D = 0x7ffffffffffffffLL;
for (n = QMIN; n <= QMAX; n++) {
m = PMIN; /* p/q ~ freq/ref -> p*ref-freq*q ~ 0 */
L = P * n - m * Q;
while (L > 0 && m < PMAX) {
L -= REF_FREQ; /* difference is greater as 0 subtract fref */
m++; /* and increment m */
}
/* difference is less or equal than 0 or m > maximum */
if (m > PMAX)
break; /* no solution: if we increase n we get the same situation */
/* L is <= 0 now */
if (-L > H && m > PMIN) { /* if difference > the half fref */
L += REF_FREQ; /* we take the situation before */
m--; /* because its closer to 0 */
}
L = (L < 0) ? -L : +L; /* absolute value */
if (D < L) /* if last difference was better take next n */
continue;
D = L;
*pp = m;
*pq = n; /* keep improved data */
if (D == 0)
break; /* best result we can get */
}
return (unsigned int) (0xffffffff & D);
}
/*****************************************************************************/
static void smiLoadCcr (struct ctfb_res_modes *var, unsigned short device_id)
{
unsigned int p = 0;
unsigned int q = 0;
long long freq;
register GraphicDevice *pGD = (GraphicDevice *)&smi;
smiWrite (SMI_INDX_C4, 0x65, 0);
smiWrite (SMI_INDX_C4, 0x66, 0);
smiWrite (SMI_INDX_C4, 0x68, 0x50);
if (device_id == PCI_DEVICE_ID_SMI_810) {
smiWrite (SMI_INDX_C4, 0x69, 0x3);
} else {
smiWrite (SMI_INDX_C4, 0x69, 0x0);
}
/* Memory clock */
switch (device_id) {
case PCI_DEVICE_ID_SMI_710 :
smiWrite (SMI_INDX_C4, 0x6a, 0x75);
break;
case PCI_DEVICE_ID_SMI_712 :
smiWrite (SMI_INDX_C4, 0x6a, 0x80);
break;
default :
smiWrite (SMI_INDX_C4, 0x6a, 0x53);
break;
}
smiWrite (SMI_INDX_C4, 0x6b, 0x15);
/* VCLK */
freq = 1000000000000LL / var -> pixclock;
FindPQ ((unsigned int)freq, &p, &q);
smiWrite (SMI_INDX_C4, 0x6c, p);
smiWrite (SMI_INDX_C4, 0x6d, q);
}
/*******************************************************************************
*
* Init video chip with common Linux graphic modes (lilo)
*/
void *video_hw_init (void)
{
GraphicDevice *pGD = (GraphicDevice *)&smi;
unsigned short device_id;
pci_dev_t devbusfn;
int videomode;
unsigned long t1, hsynch, vsynch;
unsigned int pci_mem_base, *vm;
char *penv;
int tmp, i, bits_per_pixel;
struct ctfb_res_modes *res_mode;
struct ctfb_res_modes var_mode;
unsigned char videoout;
/* Search for video chip */
printf("Video: ");
if ((devbusfn = pci_find_devices(supported, 0)) < 0)
{
printf ("Controller not found !\n");
return (NULL);
}
/* PCI setup */
pci_write_config_dword (devbusfn, PCI_COMMAND, (PCI_COMMAND_MEMORY | PCI_COMMAND_IO));
pci_read_config_word (devbusfn, PCI_DEVICE_ID, &device_id);
pci_read_config_dword (devbusfn, PCI_BASE_ADDRESS_0, &pci_mem_base);
pci_mem_base = pci_mem_to_phys (devbusfn, pci_mem_base);
tmp = 0;
videomode = CFG_DEFAULT_VIDEO_MODE;
/* get video mode via environment */
if ((penv = getenv ("videomode")) != NULL) {
/* deceide if it is a string */
if (penv[0] <= '9') {
videomode = (int) simple_strtoul (penv, NULL, 16);
tmp = 1;
}
} else {
tmp = 1;
}
if (tmp) {
/* parameter are vesa modes */
/* search params */
for (i = 0; i < VESA_MODES_COUNT; i++) {
if (vesa_modes[i].vesanr == videomode)
break;
}
if (i == VESA_MODES_COUNT) {
printf ("no VESA Mode found, switching to mode 0x%x ", CFG_DEFAULT_VIDEO_MODE);
i = 0;
}
res_mode =
(struct ctfb_res_modes *) &res_mode_init[vesa_modes[i].
resindex];
bits_per_pixel = vesa_modes[i].bits_per_pixel;
} else {
res_mode = (struct ctfb_res_modes *) &var_mode;
bits_per_pixel = video_get_params (res_mode, penv);
}
/* calculate hsynch and vsynch freq (info only) */
t1 = (res_mode->left_margin + res_mode->xres +
res_mode->right_margin + res_mode->hsync_len) / 8;
t1 *= 8;
t1 *= res_mode->pixclock;
t1 /= 1000;
hsynch = 1000000000L / t1;
t1 *=
(res_mode->upper_margin + res_mode->yres +
res_mode->lower_margin + res_mode->vsync_len);
t1 /= 1000;
vsynch = 1000000000L / t1;
/* fill in Graphic device struct */
sprintf (pGD->modeIdent, "%dx%dx%d %ldkHz %ldHz", res_mode->xres,
res_mode->yres, bits_per_pixel, (hsynch / 1000),
(vsynch / 1000));
printf ("%s\n", pGD->modeIdent);
pGD->winSizeX = res_mode->xres;
pGD->winSizeY = res_mode->yres;
pGD->plnSizeX = res_mode->xres;
pGD->plnSizeY = res_mode->yres;
switch (bits_per_pixel) {
case 8:
pGD->gdfBytesPP = 1;
pGD->gdfIndex = GDF__8BIT_INDEX;
break;
case 15:
pGD->gdfBytesPP = 2;
pGD->gdfIndex = GDF_15BIT_555RGB;
break;
case 16:
pGD->gdfBytesPP = 2;
pGD->gdfIndex = GDF_16BIT_565RGB;
break;
case 24:
pGD->gdfBytesPP = 3;
pGD->gdfIndex = GDF_24BIT_888RGB;
break;
}
pGD->isaBase = CFG_ISA_IO;
pGD->pciBase = pci_mem_base;
pGD->dprBase = (pci_mem_base + 0x400000 + 0x8000);
pGD->vprBase = (pci_mem_base + 0x400000 + 0xc000);
pGD->cprBase = (pci_mem_base + 0x400000 + 0xe000);
pGD->frameAdrs = pci_mem_base;
pGD->memSize = VIDEO_MEM_SIZE;
/* Set up hardware : select color mode,
set Register base to isa 3dx for 3?x regs*/
out8 (SMI_MISC_REG, 0x01);
/* Turn off display */
smiWrite (SMI_INDX_C4, 0x01, 0x20);
/* Unlock ext. crt regs */
out8 (SMI_LOCK_REG, 0x40);
/* Unlock crt regs 0-7 */
smiWrite (SMI_INDX_D4, 0x11, 0x0e);
/* Sytem Control Register */
smiLoadRegs (SMI_INDX_C4, SMI_DATA_C5, SMI_SCR, sizeof(SMI_SCR));
/* extented CRT Register */
smiLoadRegs (SMI_INDX_D4, SMI_DATA_D5, SMI_EXT_CRT, sizeof(SMI_EXT_CRT));
/* Attributes controller registers */
smiLoadRegs (SMI_INDX_ATTR, SMI_INDX_ATTR, SMI_ATTR, sizeof(SMI_ATTR));
/* Graphics Controller Register */
smiLoadRegs (SMI_INDX_CE, SMI_DATA_CF, SMI_GCR, sizeof(SMI_GCR));
/* Sequencer Register */
smiLoadRegs (SMI_INDX_C4, SMI_DATA_C5, SMI_SEQR, sizeof(SMI_SEQR));
/* Power Control Register */
smiLoadRegs (SMI_INDX_C4, SMI_DATA_C5, SMI_PCR, sizeof(SMI_PCR));
/* Memory Control Register */
/* Register MSR62 is a power on configurable register. We don't */
/* modify it */
smiLoadRegs (SMI_INDX_C4, SMI_DATA_C5, SMI_MCR, sizeof(SMI_MCR));
/* Set misc output register */
smiLoadMsr (res_mode);
/* Set CRT and Clock control registers */
smiLoadCrt (res_mode, bits_per_pixel);
smiLoadCcr (res_mode, device_id);
/* Hardware Cusor Register */
smiLoadRegs (SMI_INDX_C4, SMI_DATA_C5, SMI_HCR, sizeof(SMI_HCR));
/* Enable Display */
videoout = 2; /* Default output is CRT */
if ((penv = getenv ("videoout")) != NULL) {
/* deceide if it is a string */
videoout = (int) simple_strtoul (penv, NULL, 16);
}
smiWrite (SMI_INDX_C4, 0x31, videoout);
/* Video processor default setup */
smiInitVideoProcessor ();
/* Capture port default setup */
smiInitCapturePort ();
/* Drawing engine default setup */
smiInitDrawingEngine ();
/* Turn on display */
smiWrite (0x3c4, 0x01, 0x01);
/* Clear video memory */
i = pGD->memSize/4;
vm = (unsigned int *)pGD->pciBase;
while(i--)
*vm++ = 0;
return ((void*)&smi);
}
/*******************************************************************************
*
* Drawing engine fill on screen region
*/
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 *)&smi;
register unsigned int control;
dim_x *= bpp;
out32r ((pGD->dprBase + 0x0014), color);
out32r ((pGD->dprBase + 0x0004), ((dst_x<<16) | dst_y));
out32r ((pGD->dprBase + 0x0008), ((dim_x<<16) | dim_y));
control = 0x0000ffff & in32r ((pGD->dprBase + 0x000c));
control |= 0x80010000;
out32r ((pGD->dprBase + 0x000c), control);
/* Wait for drawing processor */
do
{
out8 ((pGD->isaBase + 0x3c4), 0x16);
} while (in8 (pGD->isaBase + 0x3c5) & 0x08);
}
/*******************************************************************************
*
* Drawing engine bitblt with screen region
*/
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 *)&smi;
register unsigned int control;
dim_x *= bpp;
if ((src_y<dst_y) || ((src_y==dst_y) && (src_x<dst_x)))
{
out32r ((pGD->dprBase + 0x0000), (((src_x+dim_x-1)<<16) | (src_y+dim_y-1)));
out32r ((pGD->dprBase + 0x0004), (((dst_x+dim_x-1)<<16) | (dst_y+dim_y-1)));
control = 0x88000000;
} else {
out32r ((pGD->dprBase + 0x0000), ((src_x<<16) | src_y));
out32r ((pGD->dprBase + 0x0004), ((dst_x<<16) | dst_y));
control = 0x80000000;
}
out32r ((pGD->dprBase + 0x0008), ((dim_x<<16) | dim_y));
control |= (0x0000ffff & in32r ((pGD->dprBase + 0x000c)));
out32r ((pGD->dprBase + 0x000c), control);
/* Wait for drawing processor */
do
{
out8 ((pGD->isaBase + 0x3c4), 0x16);
} while (in8 (pGD->isaBase + 0x3c5) & 0x08);
}
/*******************************************************************************
*
* Set a RGB color in the LUT (8 bit index)
*/
void video_set_lut (
unsigned int index, /* color number */
unsigned char r, /* red */
unsigned char g, /* green */
unsigned char b /* blue */
)
{
register GraphicDevice *pGD = (GraphicDevice *)&smi;
out8 (SMI_LUT_MASK, 0xff);
out8 (SMI_LUT_START, (char)index);
out8 (SMI_LUT_RGB, r>>2); /* red */
udelay (10);
out8 (SMI_LUT_RGB, g>>2); /* green */
udelay (10);
out8 (SMI_LUT_RGB, b>>2); /* blue */
udelay (10);
}
#endif /* CONFIG_VIDEO_SMI_LYNXEM */
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