1999/0610/pc/devlml.c (diff list | history)

1999/0601/sys/src/9/pc/devlml.c:23,42 – 1999/0610/sys/src/9/pc/devlml.c:23,71 (short | long | prev | next)
1999/0422		enum{
1999/0513		Qdir,
1999/0526		Qjcount,
1999/0610		Qjpg, // Qraw,
1999/0422		};
1999/0513		static Dirtab lmldir[]={ // name, qid, size, mode
1999/0526		"jcount", {Qjcount}, 0, 0444,
1999/0610		// name, qid, size, mode "lmljpg", {Qjpg}, 0, 0444, // "lmlraw", {Qraw}, 0, 0444,
1999/0422		}; CodeData * codeData;
1999/0610		static CodeData * codeData;
1999/0422
1999/0610		static ulong jpgframeno; //static ulong rawframeno; //static FrameHeader rawheader; static FrameHeader jpgheader[NBUF] = { { MRK_SOI, MRK_APP3, (sizeof(FrameHeader)-4) << 8, { 'L', 'M', 'L', '\0'}, -1, 0, 0, 0, 0 }, { MRK_SOI, MRK_APP3, (sizeof(FrameHeader)-4) << 8, { 'L', 'M', 'L', '\0'}, -1, 0, 0, 0, 0 }, { MRK_SOI, MRK_APP3, (sizeof(FrameHeader)-4) << 8, { 'L', 'M', 'L', '\0'}, -1, 0, 0, 0, 0 }, { MRK_SOI, MRK_APP3, (sizeof(FrameHeader)-4) << 8, { 'L', 'M', 'L', '\0'}, -1, 0, 0, 0, 0 } };
1999/0513		int frameNo;
1999/0424		Rendez sleeper;
1999/0610		Rendez sleepjpg; //Rendez sleepraw;
1999/0513		int singleFrame; int nopens;
1999/0610		int jpgopens; //int rawopens;
1999/0424
1999/0525		#define writel(v, a) *(ulong *)(a) = (v) #define readl(a) *(ulong*)(a)
1999/0601/sys/src/9/pc/devlml.c:51,74 – 1999/0610/sys/src/9/pc/devlml.c:80,136
1999/0526		if (codeData->statCom[last] & STAT_BIT) return last; if (last == l) sleep(&sleeper, return0, 0);
1999/0610		sleep(&sleepjpg, return0, 0);
1999/0423		}
1999/0526		return 0;
1999/0423		}
1999/0526		static long vcount(Chan *, void *va, long nbytes, vlong) { char *p = (char *)va;
1999/0610		jpgread(Chan *, void *va, long nbytes, vlong) { int bufno;
1999/0423
1999/0526		// reads always return one byte: the next available buffer number if (nbytes <= 0) return 0; *p = getbuffer();
1999/0424		return 1;
1999/0610		// reads should be of size 1 or sizeof(FrameHeader) // Frameno is the number of the buffer containing the data bufno = getbuffer(); if (nbytes == sizeof(FrameHeader)) { memmove(va, &jpgheader[bufno], sizeof jpgheader[bufno]); return sizeof jpgheader[bufno]; } if (nbytes == 1) { *(char *)va = bufno; return 1; } return 0;
1999/0424		}
1999/0610		/* static long rawread(Chan *, void *va, long nbytes, vlong) { // reads should be at least sizeof(FrameHeader) long // Frameno is the number of the buffer containing the data if (nbytes < sizeof(FrameHeader)) return 0; sleep(&sleepraw, return0, 0); memmove(va, &rawheader, sizeof rawheader); return sizeof rawheader; } */
1999/0423		static void lmlintr(Ureg *, void *); static void
1999/0610		prepbuf(void) { int i; for (i = 0; i < NBUF; i++) { codeData->statCom[i] = PADDR(&(codeData->fragdesc[i])); codeData->fragdesc[i].addr = PADDR(&(codeData->frag[i])); // Length is in double words, in position 1..20 codeData->fragdesc[i].leng = ((sizeof codeData->frag[i]) >> 1) | FRAGM_FINAL_B; } } static void
1999/0513		lmlreset(void)
1999/0422		{
1999/0522		Physseg segbuf;
1999/0601/sys/src/9/pc/devlml.c:78,84 – 1999/0610/sys/src/9/pc/devlml.c:140,145
1999/0525		ulong cdsize;
1999/0529		void *grabbuf;
1999/0527		ulong grablen;
1999/0422		int i;
1999/0423		pcidev = pcimatch(nil, PCI_VENDOR_ZORAN, PCI_DEVICE_ZORAN_36067); if (pcidev == nil) {
1999/0601/sys/src/9/pc/devlml.c:105,117 – 1999/0610/sys/src/9/pc/devlml.c:166,174
1999/0422		// Get access to DMA memory buffer
1999/0529		codeData->pamjpg = PADDR(codeData->statCom); codeData->pagrab = PADDR(grabbuf);
1999/0520		for (i = 0; i < NBUF; i++) {
1999/0517		codeData->statCom[i] = PADDR(&(codeData->fragdesc[i])); codeData->fragdesc[i].addr = PADDR(&(codeData->frag[i]));
1999/0422		// Length is in double words, in position 1..20
1999/0518		codeData->fragdesc[i].leng = ((sizeof codeData->frag[i]) >> 1) | FRAGM_FINAL_B;
1999/0422		}
1999/0610		prepbuf();
1999/0423		pciPhysBaseAddr = (void *)(pcidev->mem[0].bar & ~0x0F);
1999/0422
1999/0513		print("zr36067 found at 0x%.8lux", pciPhysBaseAddr);
1999/0601/sys/src/9/pc/devlml.c:186,197 – 1999/0610/sys/src/9/pc/devlml.c:243,264
1999/0517
1999/0422		c->aux = 0; switch(c->qid.path){
1999/0526		case Qjcount:
1999/0610		case Qjpg:
1999/0601		// allow one open
1999/0424		if (nopens)
1999/0610		if (jpgopens)
1999/0424		error(Einuse); nopens = 1;
1999/0610		jpgopens = 1; jpgframeno = 0; prepbuf();
1999/0422		break;
1999/0610		/* case Qraw: // allow one open if (rawopens) error(Einuse); rawopens = 1; rawframeno = 0; break; */
1999/0422		}
1999/0513		return devopen(c, omode, lmldir, nelem(lmldir), devgen);
1999/0422		}
1999/0601/sys/src/9/pc/devlml.c:200,209 – 1999/0610/sys/src/9/pc/devlml.c:267,281
1999/0518		lmlclose(Chan *c) {
1999/0422		switch(c->qid.path){
1999/0526		case Qjcount:
1999/0515		nopens = 0;
1999/0422		authclose(c);
1999/0610		case Qjpg: jpgopens = 0; break; /* case Qraw: rawopens = 0; break; */
1999/0422		}
1999/0610		authclose(c);
1999/0422		} static long
1999/0601/sys/src/9/pc/devlml.c:215,222 – 1999/0610/sys/src/9/pc/devlml.c:287,297
1999/0513		case Qdir: return devdirread(c, (char *)buf, n, lmldir, nelem(lmldir), devgen);
1999/0526		case Qjcount: return vcount(c, buf, n, off);
1999/0610		case Qjpg: return jpgread(c, buf, n, off); /* case Qraw: return rawread(c, buf, n, off); */
1999/0422		} }
1999/0601/sys/src/9/pc/devlml.c:250,256 – 1999/0610/sys/src/9/pc/devlml.c:325,331
1999/0422		static void
1999/0424		lmlintr(Ureg *, void *) {
1999/0520		static count;
1999/0610		ulong fstart, fno;
1999/0520		ulong flags = readl(pciBaseAddr+INTR_STAT);
1999/0424
1999/0520		if(debug&(DBGINTR))
1999/0601/sys/src/9/pc/devlml.c:260,268 – 1999/0610/sys/src/9/pc/devlml.c:335,362
1999/0520		writel(0xff000000, pciBaseAddr + INTR_STAT);
1999/0423
1999/0520		if(flags & INTR_JPEGREP) { if ((debug&DBGINTR) || ((debug&DBGINTS) && (count++ % 128) == 0))
1999/0515		print("MjpgDrv_intrHandler wakeup\n"); wakeup(&sleeper);
1999/0610		vlong thetime; fstart = jpgframeno & 0x00000003; for (;;) { jpgframeno++; fno = jpgframeno & 0x00000003; if (codeData->statCom[fno] & STAT_BIT) break; if (fno == fstart) { if (debug & DBGINTR) print("Spurious lml jpg intr?\n"); return; } } thetime = todget(nil); jpgheader[fno].sec = (ulong)(thetime / 1000000000LL); jpgheader[fno].usec = (ulong)(thetime % 1000000000LL) / 1000; jpgheader[fno].frameSize = (codeData->statCom[fno] & 0x00ffffff) >> 1; jpgheader[fno].frameSeqNo = codeData->statCom[fno] >> 24; jpgheader[fno].frameNo = jpgframeno; wakeup(&sleepjpg);
1999/0515		}
1999/0424		return;
1999/0422		}