205 lines
4.3 KiB
C
205 lines
4.3 KiB
C
#include "drmP.h"
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#include "drm.h"
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#include "i915_drm.h"
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#include "i915_drv.h"
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#include "intel_drv.h"
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/mod_devicetable.h>
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#include <errno-base.h>
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#include <linux/pci.h>
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#include <syscall.h>
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#include "bitmap.h"
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void parse_cmdline(char *cmdline, char *log);
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int _stdcall display_handler(ioctl_t *io);
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int init_agp(void);
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int create_video(int width, int height, u32_t *outp);
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int video_blit(uint64_t src_offset, int x, int y,
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int w, int h, int pitch);
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static char log[256];
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int i915_modeset = 1;
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u32_t drvEntry(int action, char *cmdline)
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{
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struct pci_device_id *ent;
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int err = 0;
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if(action != 1)
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return 0;
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if( GetService("DISPLAY") != 0 )
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return 0;
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if( cmdline && *cmdline )
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parse_cmdline(cmdline, log);
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if(!dbg_open(log))
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{
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strcpy(log, "/RD/1/DRIVERS/i915.log");
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if(!dbg_open(log))
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{
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printf("Can't open %s\nExit\n", log);
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return 0;
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};
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}
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dbgprintf("i915 blitter preview\n cmdline: %s\n", cmdline);
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enum_pci_devices();
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err = i915_init();
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if(err)
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{
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dbgprintf("Epic Fail :(/n");
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};
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err = RegService("DISPLAY", display_handler);
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if( err != 0)
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dbgprintf("Set DISPLAY handler\n");
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return err;
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};
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#define API_VERSION 0x01000100
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#define SRV_GETVERSION 0
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#define SRV_ENUM_MODES 1
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#define SRV_SET_MODE 2
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#define SRV_CREATE_BITMAP 10
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#define SRV_BLIT_VIDEO 20
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#define check_input(size) \
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if( unlikely((inp==NULL)||(io->inp_size != (size))) ) \
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break;
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#define check_output(size) \
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if( unlikely((outp==NULL)||(io->out_size != (size))) ) \
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break;
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int _stdcall display_handler(ioctl_t *io)
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{
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int retval = -1;
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u32_t *inp;
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u32_t *outp;
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inp = io->input;
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outp = io->output;
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switch(io->io_code)
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{
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case SRV_GETVERSION:
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check_output(4);
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*outp = API_VERSION;
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retval = 0;
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break;
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case SRV_ENUM_MODES:
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dbgprintf("SRV_ENUM_MODES inp %x inp_size %x out_size %x\n",
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inp, io->inp_size, io->out_size );
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check_output(4);
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// check_input(*outp * sizeof(videomode_t));
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if( i915_modeset)
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retval = get_videomodes((videomode_t*)inp, outp);
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break;
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case SRV_SET_MODE:
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dbgprintf("SRV_SET_MODE inp %x inp_size %x\n",
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inp, io->inp_size);
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check_input(sizeof(videomode_t));
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if( i915_modeset )
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retval = set_user_mode((videomode_t*)inp);
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break;
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case SRV_CREATE_BITMAP:
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check_input(5);
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retval = create_bitmap((struct ubitmap*)inp);
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break;
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case SRV_BLIT_VIDEO:
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blit_video( inp[0], inp[1], inp[2],
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inp[3], inp[4], inp[5], inp[6]);
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retval = 0;
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break;
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};
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return retval;
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}
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#define PCI_CLASS_REVISION 0x08
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#define PCI_CLASS_DISPLAY_VGA 0x0300
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#define PCI_CLASS_BRIDGE_HOST 0x0600
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#define PCI_CLASS_BRIDGE_ISA 0x0601
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int pci_scan_filter(u32_t id, u32_t busnr, u32_t devfn)
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{
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u16_t vendor, device;
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u32_t class;
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int ret = 0;
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vendor = id & 0xffff;
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device = (id >> 16) & 0xffff;
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if(vendor == 0x8086)
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{
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class = PciRead32(busnr, devfn, PCI_CLASS_REVISION);
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class >>= 16;
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if( (class == PCI_CLASS_DISPLAY_VGA) ||
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(class == PCI_CLASS_BRIDGE_HOST) ||
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(class == PCI_CLASS_BRIDGE_ISA))
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ret = 1;
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}
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return ret;
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};
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static char* parse_path(char *p, char *log)
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{
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char c;
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while( (c = *p++) == ' ');
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p--;
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while( (c = *log++ = *p++) && (c != ' '));
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*log = 0;
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return p;
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};
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void parse_cmdline(char *cmdline, char *log)
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{
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char *p = cmdline;
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char c = *p++;
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while( c )
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{
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if( c == '-')
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{
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switch(*p++)
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{
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case 'l':
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p = parse_path(p, log);
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break;
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};
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};
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c = *p++;
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};
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};
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