kolibrios/drivers/video/drm/i915/main.c

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#include "drmP.h"
#include "drm.h"
#include "i915_drm.h"
#include "i915_drv.h"
#include "intel_drv.h"
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/mod_devicetable.h>
#include <errno-base.h>
#include <linux/pci.h>
#include <syscall.h>
typedef struct bitmap bitmap_t;
void parse_cmdline(char *cmdline, char *log);
int _stdcall display_handler(ioctl_t *io);
int init_agp(void);
int create_video(int width, int height, u32_t *outp);
int create_bitmap(bitmap_t **pbitmap, int width, int height);
int video_blit(uint64_t src_offset, int x, int y,
int w, int h, int pitch);
static char log[256];
int i915_modeset = 1;
u32_t drvEntry(int action, char *cmdline)
{
struct pci_device_id *ent;
int err = 0;
if(action != 1)
return 0;
if( GetService("DISPLAY") != 0 )
return 0;
if( cmdline && *cmdline )
parse_cmdline(cmdline, log);
if(!dbg_open(log))
{
strcpy(log, "/RD/1/DRIVERS/i915.log");
if(!dbg_open(log))
{
printf("Can't open %s\nExit\n", log);
return 0;
};
}
dbgprintf("i915_early_preview second edition\n cmdline: %s\n", cmdline);
enum_pci_devices();
err = i915_init();
if(err)
{
dbgprintf("Epic Fail :(/n");
};
err = RegService("DISPLAY", display_handler);
if( err != 0)
dbgprintf("Set DISPLAY handler\n");
return err;
};
#define API_VERSION 0x01000100
#define SRV_GETVERSION 0
#define SRV_ENUM_MODES 1
#define SRV_SET_MODE 2
#define SRV_CREATE_VIDEO 9
#define SRV_BLIT_VIDEO 10
#define SRV_CREATE_BITMAP 11
#define check_input(size) \
if( unlikely((inp==NULL)||(io->inp_size != (size))) ) \
break;
#define check_output(size) \
if( unlikely((outp==NULL)||(io->out_size != (size))) ) \
break;
int _stdcall display_handler(ioctl_t *io)
{
int retval = -1;
u32_t *inp;
u32_t *outp;
inp = io->input;
outp = io->output;
switch(io->io_code)
{
case SRV_GETVERSION:
check_output(4);
*outp = API_VERSION;
retval = 0;
break;
case SRV_ENUM_MODES:
dbgprintf("SRV_ENUM_MODES inp %x inp_size %x out_size %x\n",
inp, io->inp_size, io->out_size );
check_output(4);
// check_input(*outp * sizeof(videomode_t));
if( i915_modeset)
retval = get_videomodes((videomode_t*)inp, outp);
break;
case SRV_SET_MODE:
dbgprintf("SRV_SET_MODE inp %x inp_size %x\n",
inp, io->inp_size);
check_input(sizeof(videomode_t));
if( i915_modeset )
retval = set_user_mode((videomode_t*)inp);
break;
case SRV_CREATE_VIDEO:
check_input(2);
check_output(4);
retval = create_video(inp[0], inp[1], outp);
break;
case SRV_BLIT_VIDEO:
video_blit( ((uint64_t*)inp)[0], inp[2], inp[3],
inp[4], inp[5], inp[6]);
retval = 0;
break;
case SRV_CREATE_BITMAP:
check_input(8);
check_output(4);
retval = create_bitmap((bitmap_t**)outp, inp[0], inp[1]);
break;
};
return retval;
}
#define PCI_CLASS_REVISION 0x08
#define PCI_CLASS_DISPLAY_VGA 0x0300
#define PCI_CLASS_BRIDGE_HOST 0x0600
#define PCI_CLASS_BRIDGE_ISA 0x0601
int pci_scan_filter(u32_t id, u32_t busnr, u32_t devfn)
{
u16_t vendor, device;
u32_t class;
int ret = 0;
vendor = id & 0xffff;
device = (id >> 16) & 0xffff;
if(vendor == 0x8086)
{
class = PciRead32(busnr, devfn, PCI_CLASS_REVISION);
class >>= 16;
if( (class == PCI_CLASS_DISPLAY_VGA) ||
(class == PCI_CLASS_BRIDGE_HOST) ||
(class == PCI_CLASS_BRIDGE_ISA))
ret = 1;
}
return ret;
};
static char* parse_path(char *p, char *log)
{
char c;
while( (c = *p++) == ' ');
p--;
while( (c = *log++ = *p++) && (c != ' '));
*log = 0;
return p;
};
void parse_cmdline(char *cmdline, char *log)
{
char *p = cmdline;
char c = *p++;
while( c )
{
if( c == '-')
{
switch(*p++)
{
case 'l':
p = parse_path(p, log);
break;
};
};
c = *p++;
};
};