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/* Copyright (c) 2008 Advanced Micro Devices, Inc.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
* IN THE SOFTWARE.
*
* Neither the name of the Advanced Micro Devices, Inc. nor the names of its
* contributors may be used to endorse or promote products derived from this
* software without specific prior written permission.
*/
/* Reference: Video Graphics Suite Specification:
* VG Config Register (0x00) page 16
* VG FP Register (0x02) page 18
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <stdio.h>
#include "xf86.h"
#include "compiler.h"
#include "xf86Modes.h"
#include "geode.h"
#define LX_READ_VG(reg) \
(outw(0xAC1C,0xFC53), outw(0xAC1C,0x0200|(reg)), inw(0xAC1E))
/* This is borrowed from xerver/hw/xfree86/modes */
#define MODEPREFIX NULL, NULL, NULL, 0, M_T_DRIVER
#define MODESUFFIX 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,FALSE,FALSE,0,NULL,0,0.0,0.0
DisplayModeRec lx_panel_modes[] = {
{MODEPREFIX, 31200, 320, 354, 384, 400, 0, 240, 249, 253, 260, 0,
V_NHSYNC | V_NVSYNC, MODESUFFIX}
, /* 320x200@75 */
{MODEPREFIX, 25175, 640, 656, 744, 800, 0, 480, 490, 492, 525, 0,
V_NHSYNC | V_NVSYNC, MODESUFFIX}
, /* 640x480@60 */
{MODEPREFIX, 40000, 800, 840, 968, 1056, 0, 600, 601, 605, 628, 0,
V_NHSYNC | V_NVSYNC, MODESUFFIX}
, /* 880x600@60 */
{MODEPREFIX, 65000, 1024, 1048, 1184, 1344, 0, 768, 771, 777, 806, 0,
V_NHSYNC | V_NVSYNC, MODESUFFIX}
, /* 1024x768@60 */
{MODEPREFIX, 81600, 1152, 1216, 1336, 1520, 0, 864, 865, 868, 895, 0,
V_NHSYNC | V_NVSYNC, MODESUFFIX}
, /* 1152x864@60 */
{MODEPREFIX, 108000, 1280, 1328, 1440, 1688, 0, 1024, 1025, 1028, 1066, 0,
V_NHSYNC | V_NVSYNC, MODESUFFIX}
, /* 1280x1024@60 */
{MODEPREFIX, 162000, 1600, 1664, 1856, 2160, 0, 1200, 1201, 1204, 1250, 0,
V_NHSYNC | V_NVSYNC, MODESUFFIX}
, /* 1600x1200@60 */
{MODEPREFIX, 48960, 1024, 1064, 1168, 1312, 0, 600, 601, 604, 622, 0,
V_NHSYNC | V_NVSYNC, MODESUFFIX}
, /* 1024x600@60 wide panels */
};
/* Get the legacy panel size from VSA, and return the associated mode rec */
DisplayModePtr
LXGetLegacyPanelMode(ScrnInfoPtr pScrni)
{
unsigned short reg = LX_READ_VG(0x00);
unsigned char ret = (reg >> 8) & 0x07;
if ((ret == 1 || ret == 5)) {
reg = LX_READ_VG(0x02);
ret = (reg >> 3) & 0x07;
/* FIXME: 7 is reserved in default. We use this value to support
* wide screen resolution 1024x600@80 now for panel. If you want to use
* that resolution, please assign ret to 7 manually here:
* "reg = 7"
* The user can use this entry for other wide screen resolutions.
*/
if (ret < 8) {
xf86DrvMsg(pScrni->scrnIndex, X_INFO,
" VSA Panel Mode is: %dx%d, pixel clock freq(kHz) is %d\n",
lx_panel_modes[ret].HDisplay, lx_panel_modes[ret].VDisplay,
lx_panel_modes[ret].Clock);
return &lx_panel_modes[ret];
}
}
return NULL;
}
/* Construct a moderec from the specified panel mode */
DisplayModePtr
LXGetManualPanelMode(char *modestr)
{
int clock;
int hactive, hsstart, hsend, htotal;
int vactive, vsstart, vsend, vtotal;
DisplayModePtr mode;
char sname[32];
int ret = sscanf(modestr, "%d %d %d %d %d %d %d %d %d",
&clock,
&hactive, &hsstart, &hsend, &htotal,
&vactive, &vsstart, &vsend, &vtotal);
if (ret != 9)
return NULL;
mode = xnfcalloc(1, sizeof(DisplayModeRec));
if (mode == NULL)
return NULL;
sprintf(sname, "%dx%d", hactive, vactive);
mode->name = xnfalloc(strlen(sname) + 1);
strcpy(mode->name, sname);
mode->type = M_T_DRIVER | M_T_PREFERRED;
mode->Clock = clock;
mode->HDisplay = hactive;
mode->HSyncStart = hsstart;
mode->HSyncEnd = hsend;
mode->HTotal = htotal;
mode->VDisplay = vactive;
mode->VSyncStart = vsstart;
mode->VSyncEnd = vsend;
mode->VTotal = vtotal;
mode->prev = mode->next = NULL;
return mode;
}
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