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Some fixes to snd_envy24ht(4) driver:

Browse Source 
- Allow DMA addresses anywhere in the lower 4GB; Envy24HT has a 32-bit DMA
engine, not 28-bit like Envy24.
 - Mark interrupt handler as MPSAFE, seems to be correctly synchronized.

PR:		kern/152378
Submitted by:	Jason Harmening <jason.harmening@gmail.com>
MFC after:	1 month
This commit is contained in:
mav 2013-05-05 19:09:34 +00:00
parent c546a54503
commit ddd0f9d4a3
2 changed files with 13 additions and 32 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

43
sys/dev/sound/pci/envy24ht.c
View File

@ -2080,7 +2080,7 @@ envy24ht_pci_probe(device_t dev)
static void
envy24ht_dmapsetmap(void *arg, bus_dma_segment_t *segs, int nseg, int error)
{
/* struct sc_info *sc = (struct sc_info *)arg; */
struct sc_info *sc = arg;
#if(0)
device_printf(sc->dev, "envy24ht_dmapsetmap()\n");
@ -2088,15 +2088,16 @@ envy24ht_dmapsetmap(void *arg, bus_dma_segment_t *segs, int nseg, int error)
printf("envy24ht(play): setmap %lx, %lx; ",
(unsigned long)segs->ds_addr,
(unsigned long)segs->ds_len);
printf("%p -> %lx\n", sc->pmap, (unsigned long)vtophys(sc->pmap));
}
#endif
envy24ht_wrmt(sc, ENVY24HT_MT_PADDR, (uint32_t)segs->ds_addr, 4);
envy24ht_wrmt(sc, ENVY24HT_MT_PCNT, (uint32_t)(segs->ds_len / 4 - 1), 2);
}
static void
envy24ht_dmarsetmap(void *arg, bus_dma_segment_t *segs, int nseg, int error)
{
/* struct sc_info *sc = (struct sc_info *)arg; */
struct sc_info *sc = arg;
#if(0)
device_printf(sc->dev, "envy24ht_dmarsetmap()\n");
@ -2104,9 +2105,10 @@ envy24ht_dmarsetmap(void *arg, bus_dma_segment_t *segs, int nseg, int error)
printf("envy24ht(record): setmap %lx, %lx; ",
(unsigned long)segs->ds_addr,
(unsigned long)segs->ds_len);
printf("%p -> %lx\n", sc->rmap, (unsigned long)vtophys(sc->pmap));
}
#endif
envy24ht_wrmt(sc, ENVY24HT_MT_RADDR, (uint32_t)segs->ds_addr, 4);
envy24ht_wrmt(sc, ENVY24HT_MT_RCNT, (uint32_t)(segs->ds_len / 4 - 1), 2);
}
static void
@ -2149,7 +2151,6 @@ envy24ht_dmafree(struct sc_info *sc)
static int
envy24ht_dmainit(struct sc_info *sc)
{
u_int32_t addr;
#if(0)
device_printf(sc->dev, "envy24ht_dmainit()\n");
@ -2176,34 +2177,16 @@ envy24ht_dmainit(struct sc_info *sc)
#if(0)
device_printf(sc->dev, "envy24ht_dmainit(): bus_dmamem_load(): sc->pmap\n");
#endif
if (bus_dmamap_load(sc->dmat, sc->pmap, sc->pbuf, sc->psize, envy24ht_dmapsetmap, sc, 0))
if (bus_dmamap_load(sc->dmat, sc->pmap, sc->pbuf, sc->psize, envy24ht_dmapsetmap, sc, BUS_DMA_NOWAIT))
goto bad;
#if(0)
device_printf(sc->dev, "envy24ht_dmainit(): bus_dmamem_load(): sc->rmap\n");
#endif
if (bus_dmamap_load(sc->dmat, sc->rmap, sc->rbuf, sc->rsize, envy24ht_dmarsetmap, sc, 0))
if (bus_dmamap_load(sc->dmat, sc->rmap, sc->rbuf, sc->rsize, envy24ht_dmarsetmap, sc, BUS_DMA_NOWAIT))
goto bad;
bzero(sc->pbuf, sc->psize);
bzero(sc->rbuf, sc->rsize);
/* set values to register */
addr = vtophys(sc->pbuf);
#if(0)
device_printf(sc->dev, "pbuf(0x%08x)\n", addr);
#endif
envy24ht_wrmt(sc, ENVY24HT_MT_PADDR, addr, 4);
#if(0)
device_printf(sc->dev, "PADDR-->(0x%08x)\n", envy24ht_rdmt(sc, ENVY24HT_MT_PADDR, 4));
device_printf(sc->dev, "psize(%ld)\n", sc->psize / 4 - 1);
#endif
envy24ht_wrmt(sc, ENVY24HT_MT_PCNT, sc->psize / 4 - 1, 2);
#if(0)
device_printf(sc->dev, "PCNT-->(%ld)\n", envy24ht_rdmt(sc, ENVY24HT_MT_PCNT, 2));
#endif
addr = vtophys(sc->rbuf);
envy24ht_wrmt(sc, ENVY24HT_MT_RADDR, addr, 4);
envy24ht_wrmt(sc, ENVY24HT_MT_RCNT, sc->rsize / 4 - 1, 2);
return 0;
bad:
envy24ht_dmafree(sc);
@ -2441,7 +2424,7 @@ envy24ht_alloc_resource(struct sc_info *sc)
sc->irq = bus_alloc_resource(sc->dev, SYS_RES_IRQ, &sc->irqid,
0, ~0, 1, RF_ACTIVE | RF_SHAREABLE);
if (!sc->irq ||
snd_setup_intr(sc->dev, sc->irq, 0, envy24ht_intr, sc, &sc->ih)) {
snd_setup_intr(sc->dev, sc->irq, INTR_MPSAFE, envy24ht_intr, sc, &sc->ih)) {
device_printf(sc->dev, "unable to map interrupt\n");
return ENXIO;
}
@ -2450,13 +2433,13 @@ envy24ht_alloc_resource(struct sc_info *sc)
if (bus_dma_tag_create(/*parent*/bus_get_dma_tag(sc->dev),
/*alignment*/4,
/*boundary*/0,
/*lowaddr*/BUS_SPACE_MAXADDR_ENVY24,
/*highaddr*/BUS_SPACE_MAXADDR_ENVY24,
/*lowaddr*/BUS_SPACE_MAXADDR_32BIT,
/*highaddr*/BUS_SPACE_MAXADDR,
/*filter*/NULL, /*filterarg*/NULL,
/*maxsize*/BUS_SPACE_MAXSIZE_ENVY24,
/*nsegments*/1, /*maxsegsz*/0x3ffff,
/*flags*/0, /*lockfunc*/busdma_lock_mutex,
/*lockarg*/&Giant, &sc->dmat) != 0) {
/*flags*/0, /*lockfunc*/NULL,
/*lockarg*/NULL, &sc->dmat) != 0) {
device_printf(sc->dev, "unable to create dma tag\n");
return ENXIO;
}

2
sys/dev/sound/pci/envy24ht.h
View File

@ -176,8 +176,6 @@
#define ENVY24HT_VOL_MIN 96 /* -144db(negate) */
#define ENVY24HT_VOL_MUTE 127 /* mute */
#define BUS_SPACE_MAXADDR_ENVY24 0x0fffffff /* Address space beyond 256MB is not
supported */
#define BUS_SPACE_MAXSIZE_ENVY24 0x3fffc /* 64k x 4byte(1dword) */
#define ENVY24HT_CCS_GPIO_HDATA 0x1E