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mpv/drivers/mga_vid.c
diego 50f563f927 cosmetics: Remove some pointless parentheses from return calls. 
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@29759 b3059339-0415-0410-9bf9-f77b7e298cf2
2009-10-08 11:25:01 +00:00

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/*
* Matrox MGA G200/G400 YUV Video Interface module Version 0.1.0
* BES == Back End Scaler
*
* Copyright (C) 1999 Aaron Holtzman
*
* Module skeleton based on gutted agpgart module by
* Jeff Hartmann <slicer@ionet.net>
* YUY2 support (see config.format) added by A'rpi/ESP-team
* double buffering added by A'rpi/ESP-team
* brightness/contrast introduced by eyck
* multiple card support by Attila Kinali <attila@kinali.ch>
*
* This file is part of mga_vid.
*
* mga_vid 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.
*
* mga_vid 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 mga_vid; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
//It's entirely possible this major conflicts with something else
//use the 'major' parameter to override the default major number (178)
/* mknod /dev/mga_vid c 178 0 */
//#define CRTC2
// Set this value, if autodetection fails! (video ram size in megabytes)
// #define MGA_MEMORY_SIZE 16
//#define MGA_ALLOW_IRQ
#define MGA_VSYNC_POS 2
#include <linux/config.h>
#include <linux/version.h>
#include <linux/module.h>
#include <linux/types.h>
#include <linux/kernel.h>
#include <linux/sched.h>
#include <linux/mm.h>
#include <linux/string.h>
#include <linux/errno.h>
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,4,10)
#include <linux/malloc.h>
#else
#include <linux/slab.h>
#endif
#include <linux/pci.h>
#include <linux/ioport.h>
#include <linux/init.h>
#include "mga_vid.h"
#ifdef CONFIG_MTRR
#include <asm/mtrr.h>
#endif
#ifdef CONFIG_DEVFS_FS
#include <linux/devfs_fs_kernel.h>
#endif
#include <asm/uaccess.h>
#include <asm/system.h>
#include <asm/io.h>
#define TRUE 1
#define FALSE 0
#define DEFAULT_MGA_VID_MAJOR 178
#ifndef PCI_DEVICE_ID_MATROX_G200_PCI
#define PCI_DEVICE_ID_MATROX_G200_PCI 0x0520
#endif
#ifndef PCI_DEVICE_ID_MATROX_G200_AGP
#define PCI_DEVICE_ID_MATROX_G200_AGP 0x0521
#endif
#ifndef PCI_DEVICE_ID_MATROX_G400
#define PCI_DEVICE_ID_MATROX_G400 0x0525
#endif
#ifndef PCI_DEVICE_ID_MATROX_G550
#define PCI_DEVICE_ID_MATROX_G550 0x2527
#endif
#ifndef PCI_SUBSYSTEM_ID_MATROX_G400_DH_16MB
#define PCI_SUBSYSTEM_ID_MATROX_G400_DH_16MB 0x2159
#endif
#ifndef PCI_SUBSYSTEM_ID_MATROX_G400_16MB_SGRAM
#define PCI_SUBSYSTEM_ID_MATROX_G400_16MB_SGRAM 0x19d8
#endif
#ifndef PCI_SUBSYSTEM_ID_MATROX_G400_16MB_SDRAM
#define PCI_SUBSYSTEM_ID_MATROX_G400_16MB_SDRAM 0x0328
#endif
MODULE_AUTHOR("Aaron Holtzman <aholtzma@engr.uvic.ca>");
#ifdef MODULE_LICENSE
MODULE_LICENSE("GPL");
#endif
#define PARAM_BRIGHTNESS "brightness="
#define PARAM_CONTRAST "contrast="
#define PARAM_BLACKIE "blackie="
// set PARAM_BUFF_SIZE to just below 4k because some kernel versions
// store additional information in the memory page which leads to
// the allocation of an additional page if exactly 4k is used
#define PARAM_BUFF_SIZE 4000
#ifndef min
#define min(x,y) (((x)<(y))?(x):(y))
#endif
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,4,0)
#include <linux/ctype.h>
static unsigned long simple_strtoul(const char *cp,char **endp,unsigned int base)
{
unsigned long result = 0,value;
if (!base) {
base = 10;
if (*cp == '0') {
base = 8;
cp++;
if ((*cp == 'x') && isxdigit(cp[1])) {
cp++;
base = 16;
}
}
}
while (isxdigit(*cp) && (value = isdigit(*cp) ? *cp-'0' : (islower(*cp)
? toupper(*cp) : *cp)-'A'+10) < base) {
result = result*base + value;
cp++;
}
if (endp)
*endp = (char *)cp;
return result;
}
static long simple_strtol(const char *cp,char **endp,unsigned int base)
{
if(*cp=='-')
return -simple_strtoul(cp+1,endp,base);
return simple_strtoul(cp,endp,base);
}
#endif
typedef struct bes_registers_s
{
//BES Control
uint32_t besctl;
//BES Global control
uint32_t besglobctl;
//Luma control (brightness and contrast)
uint32_t beslumactl;
//Line pitch
uint32_t bespitch;
//Buffer A-1 Chroma 3 plane org
uint32_t besa1c3org;
//Buffer A-1 Chroma org
uint32_t besa1corg;
//Buffer A-1 Luma org
uint32_t besa1org;
//Buffer A-2 Chroma 3 plane org
uint32_t besa2c3org;
//Buffer A-2 Chroma org
uint32_t besa2corg;
//Buffer A-2 Luma org
uint32_t besa2org;
//Buffer B-1 Chroma 3 plane org
uint32_t besb1c3org;
//Buffer B-1 Chroma org
uint32_t besb1corg;
//Buffer B-1 Luma org
uint32_t besb1org;
//Buffer B-2 Chroma 3 plane org
uint32_t besb2c3org;
//Buffer B-2 Chroma org
uint32_t besb2corg;
//Buffer B-2 Luma org
uint32_t besb2org;
//BES Horizontal coord
uint32_t beshcoord;
//BES Horizontal inverse scaling [5.14]
uint32_t beshiscal;
//BES Horizontal source start [10.14] (for scaling)
uint32_t beshsrcst;
//BES Horizontal source ending [10.14] (for scaling)
uint32_t beshsrcend;
//BES Horizontal source last
uint32_t beshsrclst;
//BES Vertical coord
uint32_t besvcoord;
//BES Vertical inverse scaling [5.14]
uint32_t besviscal;
//BES Field 1 vertical source last position
uint32_t besv1srclst;
//BES Field 1 weight start
uint32_t besv1wght;
//BES Field 2 vertical source last position
uint32_t besv2srclst;
//BES Field 2 weight start
uint32_t besv2wght;
//configurable stuff
int blackie;
} bes_registers_t;
#ifdef CRTC2
typedef struct crtc2_registers_s
{
uint32_t c2ctl;
uint32_t c2datactl;
uint32_t c2misc;
uint32_t c2hparam;
uint32_t c2hsync;
uint32_t c2offset;
uint32_t c2pl2startadd0;
uint32_t c2pl2startadd1;
uint32_t c2pl3startadd0;
uint32_t c2pl3startadd1;
uint32_t c2preload;
uint32_t c2spicstartadd0;
uint32_t c2spicstartadd1;
uint32_t c2startadd0;
uint32_t c2startadd1;
uint32_t c2subpiclut;
uint32_t c2vcount;
uint32_t c2vparam;
uint32_t c2vsync;
} crtc2_registers_t;
#endif
//All register offsets are converted to word aligned offsets (32 bit)
//because we want all our register accesses to be 32 bits
#define VCOUNT 0x1e20
#define PALWTADD 0x3c00 // Index register for X_DATAREG port
#define X_DATAREG 0x3c0a
#define XMULCTRL 0x19
#define BPP_8 0x00
#define BPP_15 0x01
#define BPP_16 0x02
#define BPP_24 0x03
#define BPP_32_DIR 0x04
#define BPP_32_PAL 0x07
#define XCOLMSK 0x40
#define X_COLKEY 0x42
#define XKEYOPMODE 0x51
#define XCOLMSK0RED 0x52
#define XCOLMSK0GREEN 0x53
#define XCOLMSK0BLUE 0x54
#define XCOLKEY0RED 0x55
#define XCOLKEY0GREEN 0x56
#define XCOLKEY0BLUE 0x57
#ifdef CRTC2
/*CRTC2 registers*/
#define XMISCCTRL 0x1e
#define C2CTL 0x3c10
#define C2DATACTL 0x3c4c
#define C2MISC 0x3c44
#define C2HPARAM 0x3c14
#define C2HSYNC 0x3c18
#define C2OFFSET 0x3c40
#define C2PL2STARTADD0 0x3c30 // like BESA1CORG
#define C2PL2STARTADD1 0x3c34 // like BESA2CORG
#define C2PL3STARTADD0 0x3c38 // like BESA1C3ORG
#define C2PL3STARTADD1 0x3c3c // like BESA2C3ORG
#define C2PRELOAD 0x3c24
#define C2SPICSTARTADD0 0x3c54
#define C2SPICSTARTADD1 0x3c58
#define C2STARTADD0 0x3c28 // like BESA1ORG
#define C2STARTADD1 0x3c2c // like BESA2ORG
#define C2SUBPICLUT 0x3c50
#define C2VCOUNT 0x3c48
#define C2VPARAM 0x3c1c
#define C2VSYNC 0x3c20
#endif
// Backend Scaler registers
#define BESCTL 0x3d20
#define BESGLOBCTL 0x3dc0
#define BESLUMACTL 0x3d40
#define BESPITCH 0x3d24
#define BESA1C3ORG 0x3d60
#define BESA1CORG 0x3d10
#define BESA1ORG 0x3d00
#define BESA2C3ORG 0x3d64
#define BESA2CORG 0x3d14
#define BESA2ORG 0x3d04
#define BESB1C3ORG 0x3d68
#define BESB1CORG 0x3d18
#define BESB1ORG 0x3d08
#define BESB2C3ORG 0x3d6C
#define BESB2CORG 0x3d1C
#define BESB2ORG 0x3d0C
#define BESHCOORD 0x3d28
#define BESHISCAL 0x3d30
#define BESHSRCEND 0x3d3C
#define BESHSRCLST 0x3d50
#define BESHSRCST 0x3d38
#define BESV1WGHT 0x3d48
#define BESV2WGHT 0x3d4c
#define BESV1SRCLST 0x3d54
#define BESV2SRCLST 0x3d58
#define BESVISCAL 0x3d34
#define BESVCOORD 0x3d2c
#define BESSTATUS 0x3dc4
#define CRTCX 0x1fd4
#define CRTCD 0x1fd5
#define IEN 0x1e1c
#define ICLEAR 0x1e18
#define STATUS 0x1e14
// global devfs handle for /dev/mga_vid
#ifdef CONFIG_DEVFS_FS
static devfs_handle_t dev_handle = NULL;
#endif
// card local config
typedef struct mga_card_s {
// local devfs handle for /dev/mga_vidX
#ifdef CONFIG_DEVFS_FS
devfs_handle_t dev_handle;
#endif
uint8_t *param_buff; // buffer for read()
uint32_t param_buff_size;
uint32_t param_buff_len;
bes_registers_t regs;
#ifdef CRTC2
crtc2_registers_t cregs;
#endif
uint32_t vid_in_use;
uint32_t is_g400;
uint32_t vid_src_ready;
uint32_t vid_overlay_on;
uint8_t *mmio_base;
uint32_t mem_base;
int src_base; // YUV buffer position in video memory
uint32_t ram_size; // how much megabytes videoram we have
uint32_t top_reserved; // reserved space for console font (matroxfb + fastfont)
int brightness; // initial brightness
int contrast; // initial contrast
struct pci_dev *pci_dev;
mga_vid_config_t config;
int configured; // set to 1 when the card is configured over ioctl
int colkey_saved;
int colkey_on;
unsigned char colkey_color[4];
unsigned char colkey_mask[4];
int irq; // = -1
int next_frame;
} mga_card_t;
#define MGA_MAX_CARDS 16
// this is used as init value for the parameter arrays
// it should have exactly MGA_MAX_CARDS elements
#define MGA_MAX_CARDS_INIT_ARRAY {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}
static unsigned int mga_cards_num=0;
static mga_card_t * mga_cards[MGA_MAX_CARDS] = MGA_MAX_CARDS_INIT_ARRAY;
// module parameters
static int major = DEFAULT_MGA_VID_MAJOR;
static int mga_ram_size[MGA_MAX_CARDS] = MGA_MAX_CARDS_INIT_ARRAY;
static int mga_brightness[MGA_MAX_CARDS] = MGA_MAX_CARDS_INIT_ARRAY;
static int mga_contrast[MGA_MAX_CARDS] = MGA_MAX_CARDS_INIT_ARRAY;
static int mga_top_reserved[MGA_MAX_CARDS] = MGA_MAX_CARDS_INIT_ARRAY;
MODULE_PARM(mga_ram_size, "1-" __MODULE_STRING(MGA_MAX_CARDS) "i");
MODULE_PARM(mga_top_reserved, "1-" __MODULE_STRING(MGA_MAX_CARDS) "i");
MODULE_PARM(mga_brightness, "1-" __MODULE_STRING(MGA_MAX_CARDS) "i");
MODULE_PARM(mga_contrast, "1-" __MODULE_STRING(MGA_MAX_CARDS) "i");
MODULE_PARM(major, "i");
#ifdef CRTC2
static void crtc2_frame_sel(mga_card_t * card, int frame)
{
switch(frame) {
case 0:
card->cregs.c2pl2startadd0=card->regs.besa1corg;
card->cregs.c2pl3startadd0=card->regs.besa1c3org;
card->cregs.c2startadd0=card->regs.besa1org;
break;
case 1:
card->cregs.c2pl2startadd0=card->regs.besa2corg;
card->cregs.c2pl3startadd0=card->regs.besa2c3org;
card->cregs.c2startadd0=card->regs.besa2org;
break;
case 2:
card->cregs.c2pl2startadd0=card->regs.besb1corg;
card->cregs.c2pl3startadd0=card->regs.besb1c3org;
card->cregs.c2startadd0=card->regs.besb1org;
break;
case 3:
card->cregs.c2pl2startadd0=card->regs.besb2corg;
card->cregs.c2pl3startadd0=card->regs.besb2c3org;
card->cregs.c2startadd0=card->regs.besb2org;
break;
}
writel(card->cregs.c2startadd0, card->mmio_base + C2STARTADD0);
writel(card->cregs.c2pl2startadd0, card->mmio_base + C2PL2STARTADD0);
writel(card->cregs.c2pl3startadd0, card->mmio_base + C2PL3STARTADD0);
}
#endif
static void mga_vid_frame_sel(mga_card_t * card, int frame)
{
if ( card->irq != -1 ) {
card->next_frame=frame;
} else {
//we don't need the vcount protection as we're only hitting
//one register (and it doesn't seem to be double buffered)
card->regs.besctl = (card->regs.besctl & ~0x07000000) + (frame << 25);
writel( card->regs.besctl, card->mmio_base + BESCTL );
// writel( card->regs.besglobctl + ((readl(card->mmio_base + VCOUNT)+2)<<16),
writel( card->regs.besglobctl + (MGA_VSYNC_POS<<16),
card->mmio_base + BESGLOBCTL);
#ifdef CRTC2
crtc2_frame_sel(card, frame);
#endif
}
}
static void mga_vid_write_regs(mga_card_t * card, int restore)
{
//Make sure internal registers don't get updated until we're done
writel( (readl(card->mmio_base + VCOUNT)-1)<<16,
card->mmio_base + BESGLOBCTL);
// color or coordinate keying
if(restore && card->colkey_saved){
// restore it
card->colkey_saved=0;
#ifdef MP_DEBUG
printk("mga_vid: Restoring colorkey (ON: %d %02X:%02X:%02X)\n",
card->colkey_on,card->colkey_color[0],card->colkey_color[1],card->colkey_color[2]);
#endif
// Set color key registers:
writeb( XKEYOPMODE, card->mmio_base + PALWTADD);
writeb( card->colkey_on, card->mmio_base + X_DATAREG);
writeb( XCOLKEY0RED, card->mmio_base + PALWTADD);
writeb( card->colkey_color[0], card->mmio_base + X_DATAREG);
writeb( XCOLKEY0GREEN, card->mmio_base + PALWTADD);
writeb( card->colkey_color[1], card->mmio_base + X_DATAREG);
writeb( XCOLKEY0BLUE, card->mmio_base + PALWTADD);
writeb( card->colkey_color[2], card->mmio_base + X_DATAREG);
writeb( X_COLKEY, card->mmio_base + PALWTADD);
writeb( card->colkey_color[3], card->mmio_base + X_DATAREG);
writeb( XCOLMSK0RED, card->mmio_base + PALWTADD);
writeb( card->colkey_mask[0], card->mmio_base + X_DATAREG);
writeb( XCOLMSK0GREEN, card->mmio_base + PALWTADD);
writeb( card->colkey_mask[1], card->mmio_base + X_DATAREG);
writeb( XCOLMSK0BLUE, card->mmio_base + PALWTADD);
writeb( card->colkey_mask[2], card->mmio_base + X_DATAREG);
writeb( XCOLMSK, card->mmio_base + PALWTADD);
writeb( card->colkey_mask[3], card->mmio_base + X_DATAREG);
} else if(!card->colkey_saved){
// save it
card->colkey_saved=1;
// Get color key registers:
writeb( XKEYOPMODE, card->mmio_base + PALWTADD);
card->colkey_on=(unsigned char)readb(card->mmio_base + X_DATAREG) & 1;
writeb( XCOLKEY0RED, card->mmio_base + PALWTADD);
card->colkey_color[0]=(unsigned char)readb(card->mmio_base + X_DATAREG);
writeb( XCOLKEY0GREEN, card->mmio_base + PALWTADD);
card->colkey_color[1]=(unsigned char)readb(card->mmio_base + X_DATAREG);
writeb( XCOLKEY0BLUE, card->mmio_base + PALWTADD);
card->colkey_color[2]=(unsigned char)readb(card->mmio_base + X_DATAREG);
writeb( X_COLKEY, card->mmio_base + PALWTADD);
card->colkey_color[3]=(unsigned char)readb(card->mmio_base + X_DATAREG);
writeb( XCOLMSK0RED, card->mmio_base + PALWTADD);
card->colkey_mask[0]=(unsigned char)readb(card->mmio_base + X_DATAREG);
writeb( XCOLMSK0GREEN, card->mmio_base + PALWTADD);
card->colkey_mask[1]=(unsigned char)readb(card->mmio_base + X_DATAREG);
writeb( XCOLMSK0BLUE, card->mmio_base + PALWTADD);
card->colkey_mask[2]=(unsigned char)readb(card->mmio_base + X_DATAREG);
writeb( XCOLMSK, card->mmio_base + PALWTADD);
card->colkey_mask[3]=(unsigned char)readb(card->mmio_base + X_DATAREG);
#ifdef MP_DEBUG
printk("mga_vid: Saved colorkey (ON: %d %02X:%02X:%02X)\n",
card->colkey_on, card->colkey_color[0], card->colkey_color[1], card->colkey_color[2]);
#endif
}
if(!restore){
writeb( XKEYOPMODE, card->mmio_base + PALWTADD);
writeb( card->config.colkey_on, card->mmio_base + X_DATAREG);
if ( card->config.colkey_on )
{
uint32_t r=0, g=0, b=0;
writeb( XMULCTRL, card->mmio_base + PALWTADD);
switch (readb (card->mmio_base + X_DATAREG))
{
case BPP_8:
/* Need to look up the color index, just using color 0 for now. */
break;
case BPP_15:
r = card->config.colkey_red >> 3;
g = card->config.colkey_green >> 3;
b = card->config.colkey_blue >> 3;
break;
case BPP_16:
r = card->config.colkey_red >> 3;
g = card->config.colkey_green >> 2;
b = card->config.colkey_blue >> 3;
break;
case BPP_24:
case BPP_32_DIR:
case BPP_32_PAL:
r = card->config.colkey_red;
g = card->config.colkey_green;
b = card->config.colkey_blue;
break;
}
// Disable color keying on alpha channel
writeb( XCOLMSK, card->mmio_base + PALWTADD);
writeb( 0x00, card->mmio_base + X_DATAREG);
writeb( X_COLKEY, card->mmio_base + PALWTADD);
writeb( 0x00, card->mmio_base + X_DATAREG);
// Set up color key registers
writeb( XCOLKEY0RED, card->mmio_base + PALWTADD);
writeb( r, card->mmio_base + X_DATAREG);
writeb( XCOLKEY0GREEN, card->mmio_base + PALWTADD);
writeb( g, card->mmio_base + X_DATAREG);
writeb( XCOLKEY0BLUE, card->mmio_base + PALWTADD);
writeb( b, card->mmio_base + X_DATAREG);
// Set up color key mask registers
writeb( XCOLMSK0RED, card->mmio_base + PALWTADD);
writeb( 0xff, card->mmio_base + X_DATAREG);
writeb( XCOLMSK0GREEN, card->mmio_base + PALWTADD);
writeb( 0xff, card->mmio_base + X_DATAREG);
writeb( XCOLMSK0BLUE, card->mmio_base + PALWTADD);
writeb( 0xff, card->mmio_base + X_DATAREG);
}
}
// Backend Scaler
writel( card->regs.besctl, card->mmio_base + BESCTL);
if(card->is_g400)
writel( card->regs.beslumactl, card->mmio_base + BESLUMACTL);
writel( card->regs.bespitch, card->mmio_base + BESPITCH);
writel( card->regs.besa1org, card->mmio_base + BESA1ORG);
writel( card->regs.besa1corg, card->mmio_base + BESA1CORG);
writel( card->regs.besa2org, card->mmio_base + BESA2ORG);
writel( card->regs.besa2corg, card->mmio_base + BESA2CORG);
writel( card->regs.besb1org, card->mmio_base + BESB1ORG);
writel( card->regs.besb1corg, card->mmio_base + BESB1CORG);
writel( card->regs.besb2org, card->mmio_base + BESB2ORG);
writel( card->regs.besb2corg, card->mmio_base + BESB2CORG);
if(card->is_g400)
{
writel( card->regs.besa1c3org, card->mmio_base + BESA1C3ORG);
writel( card->regs.besa2c3org, card->mmio_base + BESA2C3ORG);
writel( card->regs.besb1c3org, card->mmio_base + BESB1C3ORG);
writel( card->regs.besb2c3org, card->mmio_base + BESB2C3ORG);
}
writel( card->regs.beshcoord, card->mmio_base + BESHCOORD);
writel( card->regs.beshiscal, card->mmio_base + BESHISCAL);
writel( card->regs.beshsrcst, card->mmio_base + BESHSRCST);
writel( card->regs.beshsrcend, card->mmio_base + BESHSRCEND);
writel( card->regs.beshsrclst, card->mmio_base + BESHSRCLST);
writel( card->regs.besvcoord, card->mmio_base + BESVCOORD);
writel( card->regs.besviscal, card->mmio_base + BESVISCAL);
writel( card->regs.besv1srclst, card->mmio_base + BESV1SRCLST);
writel( card->regs.besv1wght, card->mmio_base + BESV1WGHT);
writel( card->regs.besv2srclst, card->mmio_base + BESV2SRCLST);
writel( card->regs.besv2wght, card->mmio_base + BESV2WGHT);
//update the registers somewhere between 1 and 2 frames from now.
writel( card->regs.besglobctl + ((readl(card->mmio_base + VCOUNT)+2)<<16),
card->mmio_base + BESGLOBCTL);
#if 0
printk(KERN_DEBUG "mga_vid: wrote BES registers\n");
printk(KERN_DEBUG "mga_vid: BESCTL = 0x%08x\n",
readl(card->mmio_base + BESCTL));
printk(KERN_DEBUG "mga_vid: BESGLOBCTL = 0x%08x\n",
readl(card->mmio_base + BESGLOBCTL));
printk(KERN_DEBUG "mga_vid: BESSTATUS= 0x%08x\n",
readl(card->mmio_base + BESSTATUS));
#endif
#ifdef CRTC2
// printk("c2ctl:0x%08x c2datactl:0x%08x\n", readl(card->mmio_base + C2CTL), readl(card->mmio_base + C2DATACTL));
// printk("c2misc:0x%08x\n", readl(card->mmio_base + C2MISC));
// printk("c2ctl:0x%08x c2datactl:0x%08x\n", card->cregs.c2ctl, card->cregs.c2datactl);
// writel(card->cregs.c2ctl, card->mmio_base + C2CTL);
writel(((readl(card->mmio_base + C2CTL) & ~0x03e00000) + (card->cregs.c2ctl & 0x03e00000)), card->mmio_base + C2CTL);
writel(((readl(card->mmio_base + C2DATACTL) & ~0x000000ff) + (card->cregs.c2datactl & 0x000000ff)), card->mmio_base + C2DATACTL);
// ctrc2
// disable CRTC2 acording to specs
// writel(card->cregs.c2ctl & 0xfffffff0, card->mmio_base + C2CTL);
// je to treba ???
// writeb((readb(card->mmio_base + XMISCCTRL) & 0x19) | 0xa2, card->mmio_base + XMISCCTRL); // MAFC - mfcsel & vdoutsel
// writeb((readb(card->mmio_base + XMISCCTRL) & 0x19) | 0x92, card->mmio_base + XMISCCTRL);
// writeb((readb(card->mmio_base + XMISCCTRL) & ~0xe9) + 0xa2, card->mmio_base + XMISCCTRL);
// writel(card->cregs.c2datactl, card->mmio_base + C2DATACTL);
// writel(card->cregs.c2hparam, card->mmio_base + C2HPARAM);
// writel(card->cregs.c2hsync, card->mmio_base + C2HSYNC);
// writel(card->cregs.c2vparam, card->mmio_base + C2VPARAM);
// writel(card->cregs.c2vsync, card->mmio_base + C2VSYNC);
writel(card->cregs.c2misc, card->mmio_base + C2MISC);
#ifdef MP_DEBUG
printk("c2offset = %d\n",card->cregs.c2offset);
#endif
writel(card->cregs.c2offset, card->mmio_base + C2OFFSET);
writel(card->cregs.c2startadd0, card->mmio_base + C2STARTADD0);
// writel(card->cregs.c2startadd1, card->mmio_base + C2STARTADD1);
writel(card->cregs.c2pl2startadd0, card->mmio_base + C2PL2STARTADD0);
// writel(card->cregs.c2pl2startadd1, card->mmio_base + C2PL2STARTADD1);
writel(card->cregs.c2pl3startadd0, card->mmio_base + C2PL3STARTADD0);
// writel(card->cregs.c2pl3startadd1, card->mmio_base + C2PL3STARTADD1);
writel(card->cregs.c2spicstartadd0, card->mmio_base + C2SPICSTARTADD0);
// writel(card->cregs.c2spicstartadd1, card->mmio_base + C2SPICSTARTADD1);
// writel(card->cregs.c2subpiclut, card->mmio_base + C2SUBPICLUT);
// writel(card->cregs.c2preload, card->mmio_base + C2PRELOAD);
// finaly enable everything
// writel(card->cregs.c2ctl, card->mmio_base + C2CTL);
// printk("c2ctl:0x%08x c2datactl:0x%08x\n",readl(card->mmio_base + C2CTL),readl(card->mmio_base + C2DATACTL));
// printk("c2misc:0x%08x\n", readl(card->mmio_base + C2MISC));
#endif
}
static int mga_vid_set_config(mga_card_t * card)
{
int x, y, sw, sh, dw, dh;
int besleft, bestop, ifactor, ofsleft, ofstop, baseadrofs, weight, weights;
mga_vid_config_t *config = &card->config;
int frame_size = card->config.frame_size;
#ifdef CRTC2
#define right_margin 0
#define left_margin 18
#define hsync_len 46
#define lower_margin 10
#define vsync_len 4
#define upper_margin 39
unsigned int hdispend = (config->src_width + 31) & ~31;
unsigned int hsyncstart = hdispend + (right_margin & ~7);
unsigned int hsyncend = hsyncstart + (hsync_len & ~7);
unsigned int htotal = hsyncend + (left_margin & ~7);
unsigned int vdispend = config->src_height;
unsigned int vsyncstart = vdispend + lower_margin;
unsigned int vsyncend = vsyncstart + vsync_len;
unsigned int vtotal = vsyncend + upper_margin;
#endif
x = config->x_org;
y = config->y_org;
sw = config->src_width;
sh = config->src_height;
dw = config->dest_width;
dh = config->dest_height;
#ifdef MP_DEBUG
printk(KERN_DEBUG "mga_vid: Setting up a %dx%d+%d+%d video window (src %dx%d) format %X\n",
dw, dh, x, y, sw, sh, config->format);
#endif
if(sw<4 || sh<4 || dw<4 || dh<4){
printk(KERN_ERR "mga_vid: Invalid src/dest dimenstions\n");
return -1;
}
//FIXME check that window is valid and inside desktop
//Setup the BES registers for a three plane 4:2:0 video source
card->regs.besglobctl = 0;
switch(config->format){
case MGA_VID_FORMAT_YV12:
case MGA_VID_FORMAT_I420:
case MGA_VID_FORMAT_IYUV:
card->regs.besctl = 1 // BES enabled
+ (0<<6) // even start polarity
+ (1<<10) // x filtering enabled
+ (1<<11) // y filtering enabled
+ (1<<16) // chroma upsampling
+ (1<<17) // 4:2:0 mode
+ (1<<18); // dither enabled
#if 0
if(card->is_g400)
{
//zoom disabled, zoom filter disabled, 420 3 plane format, proc amp
//disabled, rgb mode disabled
card->regs.besglobctl = (1<<5);
}
else
{
//zoom disabled, zoom filter disabled, Cb samples in 0246, Cr
//in 1357, BES register update on besvcnt
card->regs.besglobctl = 0;
}
#endif
break;
case MGA_VID_FORMAT_YUY2:
card->regs.besctl = 1 // BES enabled
+ (0<<6) // even start polarity
+ (1<<10) // x filtering enabled
+ (1<<11) // y filtering enabled
+ (1<<16) // chroma upsampling
+ (0<<17) // 4:2:2 mode
+ (1<<18); // dither enabled
card->regs.besglobctl = 0; // YUY2 format selected
break;
case MGA_VID_FORMAT_UYVY:
card->regs.besctl = 1 // BES enabled
+ (0<<6) // even start polarity
+ (1<<10) // x filtering enabled
+ (1<<11) // y filtering enabled
+ (1<<16) // chroma upsampling
+ (0<<17) // 4:2:2 mode
+ (1<<18); // dither enabled
card->regs.besglobctl = 1<<6; // UYVY format selected
break;
default:
printk(KERN_ERR "mga_vid: Unsupported pixel format: 0x%X\n",config->format);
return -1;
}
// setting black&white mode
card->regs.besctl|=(card->regs.blackie<<20);
//Enable contrast and brightness control
card->regs.besglobctl |= (1<<5) + (1<<7);
// brightness (-128..127) && contrast (0..255)
card->regs.beslumactl = (card->brightness << 16) | ((card->contrast+0x80)&0xFFFF);
//Setup destination window boundaries
besleft = x > 0 ? x : 0;
bestop = y > 0 ? y : 0;
card->regs.beshcoord = (besleft<<16) + (x + dw-1);
card->regs.besvcoord = (bestop<<16) + (y + dh-1);
//Setup source dimensions
card->regs.beshsrclst = (sw - 1) << 16;
card->regs.bespitch = (sw + 31) & ~31 ;
//Setup horizontal scaling
ifactor = ((sw-1)<<14)/(dw-1);
ofsleft = besleft - x;
card->regs.beshiscal = ifactor<<2;
card->regs.beshsrcst = (ofsleft*ifactor)<<2;
card->regs.beshsrcend = card->regs.beshsrcst + (((dw - ofsleft - 1) * ifactor) << 2);
//Setup vertical scaling
ifactor = ((sh-1)<<14)/(dh-1);
ofstop = bestop - y;
card->regs.besviscal = ifactor<<2;
baseadrofs = ( (ofstop * card->regs.besviscal) >>16) * card->regs.bespitch;
//frame_size = ((sw + 31) & ~31) * sh + (((sw + 31) & ~31) * sh) / 2;
card->regs.besa1org = (uint32_t) card->src_base + baseadrofs;
card->regs.besa2org = (uint32_t) card->src_base + baseadrofs + 1*frame_size;
card->regs.besb1org = (uint32_t) card->src_base + baseadrofs + 2*frame_size;
card->regs.besb2org = (uint32_t) card->src_base + baseadrofs + 3*frame_size;
if(config->format==MGA_VID_FORMAT_YV12
||config->format==MGA_VID_FORMAT_IYUV
||config->format==MGA_VID_FORMAT_I420
){
// planar YUV frames:
if (card->is_g400)
baseadrofs = ( ( (ofstop * card->regs.besviscal ) / 4 ) >> 16 ) * card->regs.bespitch;
else
baseadrofs = ( ( ( ofstop * card->regs.besviscal ) / 2 ) >> 16 ) * card->regs.bespitch;
if(config->format==MGA_VID_FORMAT_YV12 || !card->is_g400){
card->regs.besa1corg = (uint32_t) card->src_base + baseadrofs + card->regs.bespitch * sh ;
card->regs.besa2corg = (uint32_t) card->src_base + baseadrofs + 1*frame_size + card->regs.bespitch * sh;
card->regs.besb1corg = (uint32_t) card->src_base + baseadrofs + 2*frame_size + card->regs.bespitch * sh;
card->regs.besb2corg = (uint32_t) card->src_base + baseadrofs + 3*frame_size + card->regs.bespitch * sh;
card->regs.besa1c3org = card->regs.besa1corg + ( (card->regs.bespitch * sh) / 4);
card->regs.besa2c3org = card->regs.besa2corg + ( (card->regs.bespitch * sh) / 4);
card->regs.besb1c3org = card->regs.besb1corg + ( (card->regs.bespitch * sh) / 4);
card->regs.besb2c3org = card->regs.besb2corg + ( (card->regs.bespitch * sh) / 4);
} else {
card->regs.besa1c3org = (uint32_t) card->src_base + baseadrofs + card->regs.bespitch * sh ;
card->regs.besa2c3org = (uint32_t) card->src_base + baseadrofs + 1*frame_size + card->regs.bespitch * sh;
card->regs.besb1c3org = (uint32_t) card->src_base + baseadrofs + 2*frame_size + card->regs.bespitch * sh;
card->regs.besb2c3org = (uint32_t) card->src_base + baseadrofs + 3*frame_size + card->regs.bespitch * sh;
card->regs.besa1corg = card->regs.besa1c3org + ((card->regs.bespitch * sh) / 4);
card->regs.besa2corg = card->regs.besa2c3org + ((card->regs.bespitch * sh) / 4);
card->regs.besb1corg = card->regs.besb1c3org + ((card->regs.bespitch * sh) / 4);
card->regs.besb2corg = card->regs.besb2c3org + ((card->regs.bespitch * sh) / 4);
}
}
weight = ofstop * (card->regs.besviscal >> 2);
weights = weight < 0 ? 1 : 0;
card->regs.besv2wght = card->regs.besv1wght = (weights << 16) + ((weight & 0x3FFF) << 2);
card->regs.besv2srclst = card->regs.besv1srclst = sh - 1 - (((ofstop * card->regs.besviscal) >> 16) & 0x03FF);
#ifdef CRTC2
// pridat hlavni registry - tj. casovani ...
switch(config->format){
case MGA_VID_FORMAT_YV12:
case MGA_VID_FORMAT_I420:
case MGA_VID_FORMAT_IYUV:
card->cregs.c2ctl = 1 // CRTC2 enabled
+ (1<<1) // external clock
+ (0<<2) // external clock
+ (1<<3) // pixel clock enable - not needed ???
+ (0<<4) // high prioryty req
+ (1<<5) // high prioryty req
+ (0<<6) // high prioryty req
+ (1<<8) // high prioryty req max
+ (0<<9) // high prioryty req max
+ (0<<10) // high prioryty req max
+ (0<<20) // CRTC1 to DAC
+ (1<<21) // 420 mode
+ (1<<22) // 420 mode
+ (1<<23) // 420 mode
+ (0<<24) // single chroma line for 420 mode - need to be corrected
+ (0<<25) /*/ interlace mode - need to be corrected*/
+ (0<<26) // field legth polariry
+ (0<<27) // field identification polariry
+ (1<<28) // VIDRST detection mode
+ (0<<29) // VIDRST detection mode
+ (1<<30) // Horizontal counter preload
+ (1<<31) // Vertical counter preload
;
card->cregs.c2datactl = 1 // disable dither - propably not needed, we are already in YUV mode
+ (1<<1) // Y filter enable
+ (1<<2) // CbCr filter enable
+ (0<<3) // subpicture enable (disabled)
+ (0<<4) // NTSC enable (disabled - PAL)
+ (0<<5) // C2 static subpicture enable (disabled)
+ (0<<6) // C2 subpicture offset division (disabled)
+ (0<<7) // 422 subformat selection !
/* + (0<<8) // 15 bpp high alpha
+ (0<<9) // 15 bpp high alpha
+ (0<<10) // 15 bpp high alpha
+ (0<<11) // 15 bpp high alpha
+ (0<<12) // 15 bpp high alpha
+ (0<<13) // 15 bpp high alpha
+ (0<<14) // 15 bpp high alpha
+ (0<<15) // 15 bpp high alpha
+ (0<<16) // 15 bpp low alpha
+ (0<<17) // 15 bpp low alpha
+ (0<<18) // 15 bpp low alpha
+ (0<<19) // 15 bpp low alpha
+ (0<<20) // 15 bpp low alpha
+ (0<<21) // 15 bpp low alpha
+ (0<<22) // 15 bpp low alpha
+ (0<<23) // 15 bpp low alpha
+ (0<<24) // static subpicture key
+ (0<<25) // static subpicture key
+ (0<<26) // static subpicture key
+ (0<<27) // static subpicture key
+ (0<<28) // static subpicture key
*/ ;
break;
case MGA_VID_FORMAT_YUY2:
card->cregs.c2ctl = 1 // CRTC2 enabled
+ (1<<1) // external clock
+ (0<<2) // external clock
+ (1<<3) // pixel clock enable - not needed ???
+ (0<<4) // high prioryty req - acc to spec
+ (1<<5) // high prioryty req
+ (0<<6) // high prioryty req
// 7 reserved
+ (1<<8) // high prioryty req max
+ (0<<9) // high prioryty req max
+ (0<<10) // high prioryty req max
// 11-19 reserved
+ (0<<20) // CRTC1 to DAC
+ (1<<21) // 422 mode
+ (0<<22) // 422 mode
+ (1<<23) // 422 mode
+ (0<<24) // single chroma line for 420 mode - need to be corrected
+ (0<<25) /*/ interlace mode - need to be corrected*/
+ (0<<26) // field legth polariry
+ (0<<27) // field identification polariry
+ (1<<28) // VIDRST detection mode
+ (0<<29) // VIDRST detection mode
+ (1<<30) // Horizontal counter preload
+ (1<<31) // Vertical counter preload
;
card->cregs.c2datactl = 1 // disable dither - propably not needed, we are already in YUV mode
+ (1<<1) // Y filter enable
+ (1<<2) // CbCr filter enable
+ (0<<3) // subpicture enable (disabled)
+ (0<<4) // NTSC enable (disabled - PAL)
+ (0<<5) // C2 static subpicture enable (disabled)
+ (0<<6) // C2 subpicture offset division (disabled)
+ (0<<7) // 422 subformat selection !
/* + (0<<8) // 15 bpp high alpha
+ (0<<9) // 15 bpp high alpha
+ (0<<10) // 15 bpp high alpha
+ (0<<11) // 15 bpp high alpha
+ (0<<12) // 15 bpp high alpha
+ (0<<13) // 15 bpp high alpha
+ (0<<14) // 15 bpp high alpha
+ (0<<15) // 15 bpp high alpha
+ (0<<16) // 15 bpp low alpha
+ (0<<17) // 15 bpp low alpha
+ (0<<18) // 15 bpp low alpha
+ (0<<19) // 15 bpp low alpha
+ (0<<20) // 15 bpp low alpha
+ (0<<21) // 15 bpp low alpha
+ (0<<22) // 15 bpp low alpha
+ (0<<23) // 15 bpp low alpha
+ (0<<24) // static subpicture key
+ (0<<25) // static subpicture key
+ (0<<26) // static subpicture key
+ (0<<27) // static subpicture key
+ (0<<28) // static subpicture key
*/ ;
break;
case MGA_VID_FORMAT_UYVY:
card->cregs.c2ctl = 1 // CRTC2 enabled
+ (1<<1) // external clock
+ (0<<2) // external clock
+ (1<<3) // pixel clock enable - not needed ???
+ (0<<4) // high prioryty req
+ (1<<5) // high prioryty req
+ (0<<6) // high prioryty req
+ (1<<8) // high prioryty req max
+ (0<<9) // high prioryty req max
+ (0<<10) // high prioryty req max
+ (0<<20) // CRTC1 to DAC
+ (1<<21) // 422 mode
+ (0<<22) // 422 mode
+ (1<<23) // 422 mode
+ (1<<24) // single chroma line for 420 mode - need to be corrected
+ (1<<25) /*/ interlace mode - need to be corrected*/
+ (0<<26) // field legth polariry
+ (0<<27) // field identification polariry
+ (1<<28) // VIDRST detection mode
+ (0<<29) // VIDRST detection mode
+ (1<<30) // Horizontal counter preload
+ (1<<31) // Vertical counter preload
;
card->cregs.c2datactl = 0 // enable dither - propably not needed, we are already in YUV mode
+ (1<<1) // Y filter enable
+ (1<<2) // CbCr filter enable
+ (0<<3) // subpicture enable (disabled)
+ (0<<4) // NTSC enable (disabled - PAL)
+ (0<<5) // C2 static subpicture enable (disabled)
+ (0<<6) // C2 subpicture offset division (disabled)
+ (1<<7) // 422 subformat selection !
/* + (0<<8) // 15 bpp high alpha
+ (0<<9) // 15 bpp high alpha
+ (0<<10) // 15 bpp high alpha
+ (0<<11) // 15 bpp high alpha
+ (0<<12) // 15 bpp high alpha
+ (0<<13) // 15 bpp high alpha
+ (0<<14) // 15 bpp high alpha
+ (0<<15) // 15 bpp high alpha
+ (0<<16) // 15 bpp low alpha
+ (0<<17) // 15 bpp low alpha
+ (0<<18) // 15 bpp low alpha
+ (0<<19) // 15 bpp low alpha
+ (0<<20) // 15 bpp low alpha
+ (0<<21) // 15 bpp low alpha
+ (0<<22) // 15 bpp low alpha
+ (0<<23) // 15 bpp low alpha
+ (0<<24) // static subpicture key
+ (0<<25) // static subpicture key
+ (0<<26) // static subpicture key
+ (0<<27) // static subpicture key
+ (0<<28) // static subpicture key
*/ ;
break;
default:
printk(KERN_ERR "mga_vid: Unsupported pixel format: 0x%X\n",config->format);
return -1;
}
card->cregs.c2hparam = ( (hdispend - 8) << 16) | (htotal - 8);
card->cregs.c2hsync = ( (hsyncend - 8) << 16) | (hsyncstart - 8);
card->cregs.c2misc=0 // CRTCV2 656 togg f0
+(0<<1) // CRTCV2 656 togg f0
+(0<<2) // CRTCV2 656 togg f0
+(0<<4) // CRTCV2 656 togg f1
+(0<<5) // CRTCV2 656 togg f1
+(0<<6) // CRTCV2 656 togg f1
+(0<<8) // Hsync active high
+(0<<9) // Vsync active high
// 16-27 c2vlinecomp - nevim co tam dat
;
card->cregs.c2offset=(card->regs.bespitch << 1);
card->cregs.c2pl2startadd0=card->regs.besa1corg;
// card->cregs.c2pl2startadd1=card->regs.besa2corg;
card->cregs.c2pl3startadd0=card->regs.besa1c3org;
// card->cregs.c2pl3startadd1=card->regs.besa2c3org;
card->cregs.c2preload=(vsyncstart << 16) | (hsyncstart); // from
card->cregs.c2spicstartadd0=0; // not used
// card->cregs.c2spicstartadd1=0; // not used
card->cregs.c2startadd0=card->regs.besa1org;
// card->cregs.c2startadd1=card->regs.besa2org;
card->cregs.c2subpiclut=0; //not used
card->cregs.c2vparam = ( (vdispend - 1) << 16) | (vtotal - 1);
card->cregs.c2vsync = ( (vsyncend - 1) << 16) | (vsyncstart - 1);
#endif
mga_vid_write_regs(card, 0);
return 0;
}
#ifdef MGA_ALLOW_IRQ
static void enable_irq(mga_card_t * card){
long int cc;
cc = readl(card->mmio_base + IEN);
// printk(KERN_ALERT "*** !!! IRQREG = %d\n", (int)(cc&0xff));
writeb(0x11, card->mmio_base + CRTCX);
writeb(0x20, card->mmio_base + CRTCD); /* clear 0, enable off */
writeb(0x00, card->mmio_base + CRTCD); /* enable on */
writeb(0x10, card->mmio_base + CRTCD); /* clear = 1 */
writel(card->regs.besglobctl , card->mmio_base + BESGLOBCTL);
}
static void disable_irq(mga_card_t * card){
writeb(0x11, card->mmio_base + CRTCX);
writeb(0x20, card->mmio_base + CRTCD); /* clear 0, enable off */
}
static void mga_handle_irq(int irq, void *dev_id, struct pt_regs *pregs) {
// static int frame=0;
// static int counter=0;
long int cc;
mga_card_t * card = dev_id;
// printk(KERN_DEBUG "vcount = %d\n",readl(mga_mmio_base + VCOUNT));
//printk("mga_interrupt #%d\n", irq);
// check whether the interrupt is really for us (irq sharing)
if ( irq != -1 ) {
cc = readl(card->mmio_base + STATUS);
if ( ! (cc & 0x10) ) return; /* vsyncpen */
// debug_irqcnt++;
}
// if ( debug_irqignore ) {
// debug_irqignore = 0;
// frame=(frame+1)&1;
card->regs.besctl = (card->regs.besctl & ~0x07000000) + (card->next_frame << 25);
writel( card->regs.besctl, card->mmio_base + BESCTL );
#ifdef CRTC2
// sem pridat vyber obrazku !!!!
// i han echt kei ahnig was das obe heisse söll
crtc2_frame_sel(card->next_frame);
#endif
#if 0
++counter;
if(!(counter&63)){
printk("mga irq counter = %d\n",counter);
}
#endif
// } else {
// debug_irqignore = 1;
// }
if ( irq != -1 ) {
writeb( 0x11, card->mmio_base + CRTCX);
writeb( 0, card->mmio_base + CRTCD );
writeb( 0x10, card->mmio_base + CRTCD );
}
// writel( card->regs.besglobctl, card->mmio_base + BESGLOBCTL);
return;
}
#endif
static int mga_vid_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg)
{
int frame, result;
uint32_t tmp;
mga_card_t * card = (mga_card_t *) file->private_data;
switch(cmd)
{
case MGA_VID_GET_VERSION:
tmp = MGA_VID_VERSION;
if (copy_to_user((uint32_t *) arg, &tmp, sizeof(uint32_t))) {
printk(KERN_ERR "mga_vid: failed copy %p to userspace %p\n", &tmp, (uint32_t *) arg);
return -EFAULT;
}
break;
case MGA_VID_CONFIG:
//FIXME remove
// printk(KERN_DEBUG "mga_vid: vcount = %d\n",readl(card->mmio_base + VCOUNT));
#ifdef MP_DEBUG
printk(KERN_DEBUG "mga_vid: mmio_base = %p\n",card->mmio_base);
printk(KERN_DEBUG "mga_vid: mem_base = %08x\n",card->mem_base);
//FIXME remove
printk(KERN_DEBUG "mga_vid: Received configuration\n");
#endif
if(copy_from_user(&card->config,(mga_vid_config_t*) arg,sizeof(mga_vid_config_t)))
{
printk(KERN_ERR "mga_vid: failed copy from userspace\n");
return -EFAULT;
}
if(card->config.version != MGA_VID_VERSION){
printk(KERN_ERR "mga_vid: incompatible version! driver: %X requested: %X\n",MGA_VID_VERSION,card->config.version);
return -EFAULT;
}
if(card->config.frame_size==0 || card->config.frame_size>1024*768*2){
printk(KERN_ERR "mga_vid: illegal frame_size: %d\n",card->config.frame_size);
return -EFAULT;
}
if(card->config.num_frames<1 || card->config.num_frames>4){
printk(KERN_ERR "mga_vid: illegal num_frames: %d\n",card->config.num_frames);
return -EFAULT;
}
card->src_base = (card->ram_size * 0x100000 - card->config.num_frames * card->config.frame_size - card->top_reserved);
if(card->src_base<0){
printk(KERN_ERR "mga_vid: not enough memory for frames!\n");
return -EFAULT;
}
card->src_base &= (~0xFFFF); // 64k boundary
#ifdef MP_DEBUG
printk(KERN_DEBUG "mga YUV buffer base: 0x%X\n", card->src_base);
#endif
if (card->is_g400)
card->config.card_type = MGA_G400;
else
card->config.card_type = MGA_G200;
card->config.ram_size = card->ram_size;
if (copy_to_user((mga_vid_config_t *) arg, &card->config, sizeof(mga_vid_config_t)))
{
printk(KERN_ERR "mga_vid: failed copy to userspace\n");
return -EFAULT;
}
result = mga_vid_set_config(card);
if(!result) card->configured=1;
return result;
break;
case MGA_VID_ON:
#ifdef MP_DEBUG
printk(KERN_DEBUG "mga_vid: Video ON\n");
#endif
card->vid_src_ready = 1;
if(card->vid_overlay_on)
{
card->regs.besctl |= 1;
mga_vid_write_regs(card, 0);
}
#ifdef MGA_ALLOW_IRQ
if ( card->irq != -1 ) enable_irq(card);
#endif
card->next_frame=0;
break;
case MGA_VID_OFF:
#ifdef MP_DEBUG
printk(KERN_DEBUG "mga_vid: Video OFF (ioctl)\n");
#endif
card->vid_src_ready = 0;
#ifdef MGA_ALLOW_IRQ
if ( card->irq != -1 ) disable_irq(card);
#endif
card->regs.besctl &= ~1;
card->regs.besglobctl &= ~(1<<6); // UYVY format selected
mga_vid_write_regs(card, 0);
break;
case MGA_VID_FSEL:
if(copy_from_user(&frame,(int *) arg,sizeof(int)))
{
printk(KERN_ERR "mga_vid: FSEL failed copy from userspace\n");
return -EFAULT;
}
mga_vid_frame_sel(card, frame);
break;
case MGA_VID_GET_LUMA:
//tmp = card->regs.beslumactl;
//tmp = (tmp&0xFFFF0000) | (((tmp&0xFFFF) - 0x80)&0xFFFF);
tmp = (card->brightness << 16) | (card->contrast&0xFFFF);
if (copy_to_user((uint32_t *) arg, &tmp, sizeof(uint32_t)))
{
printk(KERN_ERR "mga_vid: failed copy %p to userspace %p\n",
&tmp, (uint32_t *) arg);
return -EFAULT;
}
break;
case MGA_VID_SET_LUMA:
tmp = arg;
card->brightness=tmp>>16; card->contrast=tmp&0xFFFF;
//card->regs.beslumactl = (tmp&0xFFFF0000) | ((tmp + 0x80)&0xFFFF);
card->regs.beslumactl = (card->brightness << 16) | ((card->contrast+0x80)&0xFFFF);
mga_vid_write_regs(card, 0);
break;
default:
printk(KERN_ERR "mga_vid: Invalid ioctl\n");
return -EINVAL;
}
return 0;
}
static void cards_init(mga_card_t * card, struct pci_dev * dev, int card_number, int is_g400);
// returns the number of found cards
static int mga_vid_find_card(void)
{
struct pci_dev *dev = NULL;
char *mga_dev_name;
mga_card_t * card;
while((dev = pci_find_device(PCI_VENDOR_ID_MATROX, PCI_ANY_ID, dev)))
{
mga_dev_name = "";
mga_cards_num++;
if(mga_cards_num == MGA_MAX_CARDS)
{
printk(KERN_WARNING "mga_vid: Trying to initialize more than %d cards\n",MGA_MAX_CARDS);
mga_cards_num--;
break;
}
card = kmalloc(sizeof(mga_card_t), GFP_KERNEL);
if(!card)
{
printk(KERN_ERR "mga_vid: memory allocation failed\n");
mga_cards_num--;
break;
}
mga_cards[mga_cards_num - 1] = card;
switch(dev->device) {
case PCI_DEVICE_ID_MATROX_G550:
mga_dev_name = "MGA G550";
printk(KERN_INFO "mga_vid: Found %s at %s [%s]\n", mga_dev_name, dev->slot_name, dev->name);
cards_init(card, dev, mga_cards_num - 1, 1);
break;
case PCI_DEVICE_ID_MATROX_G400:
mga_dev_name = "MGA G400/G450";
printk(KERN_INFO "mga_vid: Found %s at %s [%s]\n", mga_dev_name, dev->slot_name, dev->name);
cards_init(card, dev, mga_cards_num - 1, 1);
break;
case PCI_DEVICE_ID_MATROX_G200_AGP:
mga_dev_name = "MGA G200 AGP";
printk(KERN_INFO "mga_vid: Found %s at %s [%s]\n", mga_dev_name, dev->slot_name, dev->name);
cards_init(card, dev, mga_cards_num - 1, 0);
break;
case PCI_DEVICE_ID_MATROX_G200_PCI:
mga_dev_name = "MGA G200";
printk(KERN_INFO "mga_vid: Found %s at %s [%s]\n", mga_dev_name, dev->slot_name, dev->name);
cards_init(card, dev, mga_cards_num - 1, 0);
break;
default:
mga_cards_num--;
printk(KERN_INFO "mga_vid: ignoring matrox device (%d) at %s [%s]\n", dev->device, dev->slot_name, dev->name);
break;
}
}
if(!mga_cards_num)
{
printk(KERN_ERR "mga_vid: No supported cards found\n");
} else {
printk(KERN_INFO "mga_vid: %d supported cards found\n", mga_cards_num);
}
return mga_cards_num;
}
static void mga_param_buff_fill( mga_card_t * card )
{
unsigned len;
unsigned size = card->param_buff_size;
char * buf = card->param_buff;
len = 0;
len += snprintf(&buf[len],size-len,"Interface version: %04X\n",MGA_VID_VERSION);
len += snprintf(&buf[len],size-len,"Memory: %x:%dM\n",card->mem_base,(unsigned int) card->ram_size);
len += snprintf(&buf[len],size-len,"MMIO: %p\n",card->mmio_base);
len += snprintf(&buf[len],size-len,"Configurable stuff:\n");
len += snprintf(&buf[len],size-len,"~~~~~~~~~~~~~~~~~~~\n");
len += snprintf(&buf[len],size-len,PARAM_BRIGHTNESS"%d\n",card->brightness);
len += snprintf(&buf[len],size-len,PARAM_CONTRAST"%d\n",card->contrast);
len += snprintf(&buf[len],size-len,PARAM_BLACKIE"%s\n",card->regs.blackie?"on":"off");
card->param_buff_len = len;
// check boundaries of mga_param_buff before writing to it!!!
}
static ssize_t mga_vid_read(struct file *file, char *buf, size_t count, loff_t *ppos)
{
uint32_t size;
mga_card_t * card = (mga_card_t *) file->private_data;
if(!card->param_buff) return -ESPIPE;
if(!(*ppos)) mga_param_buff_fill(card);
if(*ppos >= card->param_buff_len) return 0;
size = min(count,card->param_buff_len-(uint32_t)(*ppos));
memcpy(buf,card->param_buff,size);
*ppos += size;
return size;
}
static ssize_t mga_vid_write(struct file *file, const char *buf, size_t count, loff_t *ppos)
{
mga_card_t * card = (mga_card_t *) file->private_data;
if(memcmp(buf,PARAM_BRIGHTNESS,min(count,strlen(PARAM_BRIGHTNESS))) == 0)
{
short brightness;
brightness=simple_strtol(&buf[strlen(PARAM_BRIGHTNESS)],NULL,10);
if (brightness>127 || brightness<-128) { brightness=0;}
// printk(KERN_DEBUG "mga_vid: brightness modified ( %d ) \n",brightness);
card->brightness=brightness;
} else
if(memcmp(buf,PARAM_CONTRAST,min(count,strlen(PARAM_CONTRAST))) == 0)
{
short contrast;
contrast=simple_strtol(&buf[strlen(PARAM_CONTRAST)],NULL,10);
if (contrast>127 || contrast<-128) { contrast=0;}
// printk(KERN_DEBUG "mga_vid: contrast modified ( %d ) \n",contrast);
card->contrast=contrast;
} else
if(memcmp(buf,PARAM_BLACKIE,min(count,strlen(PARAM_BLACKIE))) == 0)
{
short blackie;
blackie=simple_strtol(&buf[strlen(PARAM_BLACKIE)],NULL,10);
// printk(KERN_DEBUG "mga_vid: shadow mode: ( %d ) \n",blackie);
card->regs.blackie=(blackie>0)?1:0;
} else count = -EIO;
// TODO: reset settings
return count;
}
static int mga_vid_mmap(struct file *file, struct vm_area_struct *vma)
{
mga_card_t * card = (mga_card_t *) file->private_data;
#ifdef MP_DEBUG
printk(KERN_DEBUG "mga_vid: mapping video memory into userspace\n");
#endif
if(!card->configured)
{
printk(KERN_ERR "mga_vid: card is not configured, cannot mmap\n");
return -EAGAIN;
}
if(remap_page_range(vma->vm_start, card->mem_base + card->src_base,
vma->vm_end - vma->vm_start, vma->vm_page_prot))
{
printk(KERN_ERR "mga_vid: error mapping video memory\n");
return -EAGAIN;
}
return 0;
}
static int mga_vid_release(struct inode *inode, struct file *file)
{
mga_card_t * card;
//Close the window just in case
#ifdef MP_DEBUG
printk(KERN_DEBUG "mga_vid: Video OFF (release)\n");
#endif
card = (mga_card_t *) file->private_data;
card->vid_src_ready = 0;
card->regs.besctl &= ~1;
card->regs.besglobctl &= ~(1<<6); // UYVY format selected
// card->config.colkey_on=0; //!!!
mga_vid_write_regs(card, 1);
card->vid_in_use = 0;
MOD_DEC_USE_COUNT;
return 0;
}
static long long mga_vid_lseek(struct file *file, long long offset, int origin)
{
return -ESPIPE;
}
static int mga_vid_open(struct inode *inode, struct file *file)
{
mga_card_t * card;
int minor = MINOR(inode->i_rdev);
if(!file->private_data)
{
// we are not using devfs, use the minor
// number to specify the card we are using
// we don't have that many cards
if(minor >= mga_cards_num)
return -ENXIO;
file->private_data = mga_cards[minor];
#ifdef MP_DEBUG
printk(KERN_DEBUG "mga_vid: Not using devfs\n");
#endif
}
#ifdef MP_DEBUG
else {
printk(KERN_DEBUG "mga_vid: Using devfs\n");
}
#endif
card = (mga_card_t *) file->private_data;
if(card->vid_in_use == 1)
return -EBUSY;
card->vid_in_use = 1;
MOD_INC_USE_COUNT;
return 0;
}
#if LINUX_VERSION_CODE >= 0x020400
static struct file_operations mga_vid_fops =
{
llseek: mga_vid_lseek,
read: mga_vid_read,
write: mga_vid_write,
ioctl: mga_vid_ioctl,
mmap: mga_vid_mmap,
open: mga_vid_open,
release: mga_vid_release
};
#else
static struct file_operations mga_vid_fops =
{
mga_vid_lseek,
mga_vid_read,
mga_vid_write,
NULL,
NULL,
mga_vid_ioctl,
mga_vid_mmap,
mga_vid_open,
NULL,
mga_vid_release
};
#endif
static void cards_init(mga_card_t * card, struct pci_dev * dev, int card_number, int is_g400)
{
unsigned int card_option;
// temp buffer for device filename creation used only by devfs
#ifdef CONFIG_DEVFS_FS
char buffer[16];
#endif
memset(card,0,sizeof(mga_card_t));
card->irq = -1;
card->pci_dev = dev;
card->irq = dev->irq;
card->is_g400 = is_g400;
card->param_buff = kmalloc(PARAM_BUFF_SIZE,GFP_KERNEL);
if(card->param_buff) card->param_buff_size = PARAM_BUFF_SIZE;
card->brightness = mga_brightness[card_number];
card->contrast = mga_contrast[card_number];
card->top_reserved = mga_top_reserved[card_number];
#if LINUX_VERSION_CODE >= 0x020300
card->mmio_base = ioremap_nocache(dev->resource[1].start,0x4000);
card->mem_base = dev->resource[0].start;
#else
card->mmio_base = ioremap_nocache(dev->base_address[1] & PCI_BASE_ADDRESS_MEM_MASK,0x4000);
card->mem_base = dev->base_address[0] & PCI_BASE_ADDRESS_MEM_MASK;
#endif
printk(KERN_INFO "mga_vid: MMIO at 0x%p IRQ: %d framebuffer: 0x%08X\n", card->mmio_base, card->irq, card->mem_base);
pci_read_config_dword(dev, 0x40, &card_option);
printk(KERN_INFO "mga_vid: OPTION word: 0x%08X mem: 0x%02X %s\n", card_option,
(card_option>>10)&0x17, ((card_option>>14)&1)?"SGRAM":"SDRAM");
if (mga_ram_size[card_number]) {
printk(KERN_INFO "mga_vid: RAMSIZE forced to %d MB\n", mga_ram_size[card_number]);
card->ram_size=mga_ram_size[card_number];
} else {
#ifdef MGA_MEMORY_SIZE
card->ram_size = MGA_MEMORY_SIZE;
printk(KERN_INFO "mga_vid: hard-coded RAMSIZE is %d MB\n", (unsigned int) card->ram_size);
#else
if (card->is_g400){
switch((card_option>>10)&0x17){
// SDRAM:
case 0x00:
case 0x04: card->ram_size = 16; break;
case 0x03:
case 0x05: card->ram_size = 32; break;
// SGRAM:
case 0x10:
case 0x14: card->ram_size = 32; break;
case 0x11:
case 0x12: card->ram_size = 16; break;
default:
card->ram_size = 16;
printk(KERN_INFO "mga_vid: Couldn't detect RAMSIZE, assuming 16MB!");
}
/* Check for buggy 16MB cards reporting 32 MB */
if(card->ram_size != 16 &&
(dev->subsystem_device == PCI_SUBSYSTEM_ID_MATROX_G400_16MB_SDRAM ||
dev->subsystem_device == PCI_SUBSYSTEM_ID_MATROX_G400_16MB_SGRAM ||
dev->subsystem_device == PCI_SUBSYSTEM_ID_MATROX_G400_DH_16MB))
{
printk(KERN_INFO "mga_vid: Detected 16MB card reporting %d MB RAMSIZE, overriding\n", card->ram_size);
card->ram_size = 16;
}
}else{
switch((card_option>>10)&0x17){
// case 0x10:
// case 0x13: card->ram_size = 8; break;
default: card->ram_size = 8;
}
}
#if 0
// printk("List resources -----------\n");
for(temp=0;temp<DEVICE_COUNT_RESOURCE;temp++){
struct resource *res=&dev->resource[temp];
if(res->flags){
int size=(1+res->end-res->start)>>20;
printk(KERN_DEBUG "res %d: start: 0x%X end: 0x%X (%d MB) flags=0x%X\n",temp,res->start,res->end,size,res->flags);
if(res->flags&(IORESOURCE_MEM|IORESOURCE_PREFETCH)){
if(size>card->ram_size && size<=64) card->ram_size=size;
}
}
}
#endif
printk(KERN_INFO "mga_vid: detected RAMSIZE is %d MB\n", (unsigned int) card->ram_size);
#endif
}
#ifdef MGA_ALLOW_IRQ
if ( card->irq != -1 ) {
int tmp = request_irq(card->irq, mga_handle_irq, SA_INTERRUPT | SA_SHIRQ, "Syncfb Time Base", card);
if ( tmp ) {
printk(KERN_INFO "syncfb (mga): cannot register irq %d (Err: %d)\n", card->irq, tmp);
card->irq=-1;
} else {
printk(KERN_DEBUG "syncfb (mga): registered irq %d\n", card->irq);
}
} else {
printk(KERN_INFO "syncfb (mga): No valid irq was found\n");
card->irq=-1;
}
#else
printk(KERN_INFO "syncfb (mga): IRQ disabled in mga_vid.c\n");
card->irq=-1;
#endif
// register devfs, let the kernel give us major and minor numbers
#ifdef CONFIG_DEVFS_FS
snprintf(buffer, 16, "mga_vid%d", card_number);
card->dev_handle = devfs_register(NULL, buffer, DEVFS_FL_AUTO_DEVNUM,
0, 0,
S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IFCHR,
&mga_vid_fops, card);
#endif
}
/*
* Main Initialization Function
*/
static int mga_vid_initialize(void)
{
int i;
// printk(KERN_INFO "Matrox MGA G200/G400 YUV Video interface v0.01 (c) Aaron Holtzman \n");
printk(KERN_INFO "Matrox MGA G200/G400/G450/G550 YUV Video interface v2.01 (c) Aaron Holtzman & A'rpi\n");
for(i = 0; i < MGA_MAX_CARDS; i++)
{
if (mga_ram_size[i]) {
if (mga_ram_size[i]<4 || mga_ram_size[i]>64) {
printk(KERN_ERR "mga_vid: invalid RAMSIZE: %d MB\n", mga_ram_size[i]);
return -EINVAL;
}
}
}
if(register_chrdev(major, "mga_vid", &mga_vid_fops))
{
printk(KERN_ERR "mga_vid: unable to get major: %d\n", major);
return -EIO;
}
if (!mga_vid_find_card())
{
printk(KERN_ERR "mga_vid: no supported devices found\n");
unregister_chrdev(major, "mga_vid");
return -EINVAL;
}
#ifdef CONFIG_DEVFS_FS
else {
// we assume that this always succeedes
dev_handle = devfs_register(NULL, "mga_vid", DEVFS_FL_AUTO_DEVNUM,
0,0,
S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IFCHR,
&mga_vid_fops, mga_cards[0]);
}
#endif
return 0;
}
int init_module(void)
{
return mga_vid_initialize();
}
void cleanup_module(void)
{
int i;
mga_card_t * card;
for (i = 0; i < MGA_MAX_CARDS; i++)
{
card = mga_cards[i];
if(card)
{
#ifdef MGA_ALLOW_IRQ
if (card->irq != -1)
free_irq(card->irq, &(card->irq));
#endif
if(card->mmio_base)
iounmap(card->mmio_base);
if(card->param_buff)
kfree(card->param_buff);
#ifdef CONFIG_DEVFS_FS
if(card->dev_handle) devfs_unregister(card->dev_handle);
#endif
kfree(card);
mga_cards[i]=NULL;
}
}
//FIXME turn off BES
printk(KERN_INFO "mga_vid: Cleaning up module\n");
#ifdef CONFIG_DEVFS_FS
if(dev_handle) devfs_unregister(dev_handle);
#endif
unregister_chrdev(major, "mga_vid");
}
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