Index: head/sys/dev/sound/pci/hda/hdac.c =================================================================== --- head/sys/dev/sound/pci/hda/hdac.c (revision 352774) +++ head/sys/dev/sound/pci/hda/hdac.c (revision 352775) @@ -1,2107 +1,2108 @@ /*- * SPDX-License-Identifier: BSD-2-Clause-FreeBSD * * Copyright (c) 2006 Stephane E. Potvin * Copyright (c) 2006 Ariff Abdullah * Copyright (c) 2008-2012 Alexander Motin * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ /* * Intel High Definition Audio (Controller) driver for FreeBSD. */ #ifdef HAVE_KERNEL_OPTION_HEADERS #include "opt_snd.h" #endif #include #include #include #include #include #include #include #include #include #include #define HDA_DRV_TEST_REV "20120126_0002" SND_DECLARE_FILE("$FreeBSD$"); #define hdac_lock(sc) snd_mtxlock((sc)->lock) #define hdac_unlock(sc) snd_mtxunlock((sc)->lock) #define hdac_lockassert(sc) snd_mtxassert((sc)->lock) #define hdac_lockowned(sc) mtx_owned((sc)->lock) #define HDAC_QUIRK_64BIT (1 << 0) #define HDAC_QUIRK_DMAPOS (1 << 1) #define HDAC_QUIRK_MSI (1 << 2) static const struct { const char *key; uint32_t value; } hdac_quirks_tab[] = { { "64bit", HDAC_QUIRK_DMAPOS }, { "dmapos", HDAC_QUIRK_DMAPOS }, { "msi", HDAC_QUIRK_MSI }, }; MALLOC_DEFINE(M_HDAC, "hdac", "HDA Controller"); static const struct { uint32_t model; const char *desc; char quirks_on; char quirks_off; } hdac_devices[] = { { HDA_INTEL_OAK, "Intel Oaktrail", 0, 0 }, { HDA_INTEL_BAY, "Intel BayTrail", 0, 0 }, { HDA_INTEL_HSW1, "Intel Haswell", 0, 0 }, { HDA_INTEL_HSW2, "Intel Haswell", 0, 0 }, { HDA_INTEL_HSW3, "Intel Haswell", 0, 0 }, { HDA_INTEL_BDW1, "Intel Broadwell", 0, 0 }, { HDA_INTEL_BDW2, "Intel Broadwell", 0, 0 }, { HDA_INTEL_CPT, "Intel Cougar Point", 0, 0 }, { HDA_INTEL_PATSBURG,"Intel Patsburg", 0, 0 }, { HDA_INTEL_PPT1, "Intel Panther Point", 0, 0 }, { HDA_INTEL_LPT1, "Intel Lynx Point", 0, 0 }, { HDA_INTEL_LPT2, "Intel Lynx Point", 0, 0 }, { HDA_INTEL_WCPT, "Intel Wildcat Point", 0, 0 }, { HDA_INTEL_WELLS1, "Intel Wellsburg", 0, 0 }, { HDA_INTEL_WELLS2, "Intel Wellsburg", 0, 0 }, { HDA_INTEL_LPTLP1, "Intel Lynx Point-LP", 0, 0 }, { HDA_INTEL_LPTLP2, "Intel Lynx Point-LP", 0, 0 }, { HDA_INTEL_SRPTLP, "Intel Sunrise Point-LP", 0, 0 }, { HDA_INTEL_KBLKLP, "Intel Kaby Lake-LP", 0, 0 }, { HDA_INTEL_SRPT, "Intel Sunrise Point", 0, 0 }, { HDA_INTEL_KBLK, "Intel Kaby Lake", 0, 0 }, { HDA_INTEL_KBLKH, "Intel Kaby Lake-H", 0, 0 }, { HDA_INTEL_CFLK, "Intel Coffee Lake", 0, 0 }, + { HDA_INTEL_CNLK, "Intel Cannon Lake", 0, 0 }, { HDA_INTEL_82801F, "Intel 82801F", 0, 0 }, { HDA_INTEL_63XXESB, "Intel 631x/632xESB", 0, 0 }, { HDA_INTEL_82801G, "Intel 82801G", 0, 0 }, { HDA_INTEL_82801H, "Intel 82801H", 0, 0 }, { HDA_INTEL_82801I, "Intel 82801I", 0, 0 }, { HDA_INTEL_82801JI, "Intel 82801JI", 0, 0 }, { HDA_INTEL_82801JD, "Intel 82801JD", 0, 0 }, { HDA_INTEL_PCH, "Intel Ibex Peak", 0, 0 }, { HDA_INTEL_PCH2, "Intel Ibex Peak", 0, 0 }, { HDA_INTEL_SCH, "Intel SCH", 0, 0 }, { HDA_NVIDIA_MCP51, "NVIDIA MCP51", 0, HDAC_QUIRK_MSI }, { HDA_NVIDIA_MCP55, "NVIDIA MCP55", 0, HDAC_QUIRK_MSI }, { HDA_NVIDIA_MCP61_1, "NVIDIA MCP61", 0, 0 }, { HDA_NVIDIA_MCP61_2, "NVIDIA MCP61", 0, 0 }, { HDA_NVIDIA_MCP65_1, "NVIDIA MCP65", 0, 0 }, { HDA_NVIDIA_MCP65_2, "NVIDIA MCP65", 0, 0 }, { HDA_NVIDIA_MCP67_1, "NVIDIA MCP67", 0, 0 }, { HDA_NVIDIA_MCP67_2, "NVIDIA MCP67", 0, 0 }, { HDA_NVIDIA_MCP73_1, "NVIDIA MCP73", 0, 0 }, { HDA_NVIDIA_MCP73_2, "NVIDIA MCP73", 0, 0 }, { HDA_NVIDIA_MCP78_1, "NVIDIA MCP78", 0, HDAC_QUIRK_64BIT }, { HDA_NVIDIA_MCP78_2, "NVIDIA MCP78", 0, HDAC_QUIRK_64BIT }, { HDA_NVIDIA_MCP78_3, "NVIDIA MCP78", 0, HDAC_QUIRK_64BIT }, { HDA_NVIDIA_MCP78_4, "NVIDIA MCP78", 0, HDAC_QUIRK_64BIT }, { HDA_NVIDIA_MCP79_1, "NVIDIA MCP79", 0, 0 }, { HDA_NVIDIA_MCP79_2, "NVIDIA MCP79", 0, 0 }, { HDA_NVIDIA_MCP79_3, "NVIDIA MCP79", 0, 0 }, { HDA_NVIDIA_MCP79_4, "NVIDIA MCP79", 0, 0 }, { HDA_NVIDIA_MCP89_1, "NVIDIA MCP89", 0, 0 }, { HDA_NVIDIA_MCP89_2, "NVIDIA MCP89", 0, 0 }, { HDA_NVIDIA_MCP89_3, "NVIDIA MCP89", 0, 0 }, { HDA_NVIDIA_MCP89_4, "NVIDIA MCP89", 0, 0 }, { HDA_NVIDIA_0BE2, "NVIDIA (0x0be2)", 0, HDAC_QUIRK_MSI }, { HDA_NVIDIA_0BE3, "NVIDIA (0x0be3)", 0, HDAC_QUIRK_MSI }, { HDA_NVIDIA_0BE4, "NVIDIA (0x0be4)", 0, HDAC_QUIRK_MSI }, { HDA_NVIDIA_GT100, "NVIDIA GT100", 0, HDAC_QUIRK_MSI }, { HDA_NVIDIA_GT104, "NVIDIA GT104", 0, HDAC_QUIRK_MSI }, { HDA_NVIDIA_GT106, "NVIDIA GT106", 0, HDAC_QUIRK_MSI }, { HDA_NVIDIA_GT108, "NVIDIA GT108", 0, HDAC_QUIRK_MSI }, { HDA_NVIDIA_GT116, "NVIDIA GT116", 0, HDAC_QUIRK_MSI }, { HDA_NVIDIA_GF119, "NVIDIA GF119", 0, 0 }, { HDA_NVIDIA_GF110_1, "NVIDIA GF110", 0, HDAC_QUIRK_MSI }, { HDA_NVIDIA_GF110_2, "NVIDIA GF110", 0, HDAC_QUIRK_MSI }, { HDA_ATI_SB450, "ATI SB450", 0, 0 }, { HDA_ATI_SB600, "ATI SB600", 0, 0 }, { HDA_ATI_RS600, "ATI RS600", 0, 0 }, { HDA_ATI_RS690, "ATI RS690", 0, 0 }, { HDA_ATI_RS780, "ATI RS780", 0, 0 }, { HDA_ATI_R600, "ATI R600", 0, 0 }, { HDA_ATI_RV610, "ATI RV610", 0, 0 }, { HDA_ATI_RV620, "ATI RV620", 0, 0 }, { HDA_ATI_RV630, "ATI RV630", 0, 0 }, { HDA_ATI_RV635, "ATI RV635", 0, 0 }, { HDA_ATI_RV710, "ATI RV710", 0, 0 }, { HDA_ATI_RV730, "ATI RV730", 0, 0 }, { HDA_ATI_RV740, "ATI RV740", 0, 0 }, { HDA_ATI_RV770, "ATI RV770", 0, 0 }, { HDA_ATI_RV810, "ATI RV810", 0, 0 }, { HDA_ATI_RV830, "ATI RV830", 0, 0 }, { HDA_ATI_RV840, "ATI RV840", 0, 0 }, { HDA_ATI_RV870, "ATI RV870", 0, 0 }, { HDA_ATI_RV910, "ATI RV910", 0, 0 }, { HDA_ATI_RV930, "ATI RV930", 0, 0 }, { HDA_ATI_RV940, "ATI RV940", 0, 0 }, { HDA_ATI_RV970, "ATI RV970", 0, 0 }, { HDA_ATI_R1000, "ATI R1000", 0, 0 }, { HDA_AMD_HUDSON2, "AMD Hudson-2", 0, 0 }, { HDA_RDC_M3010, "RDC M3010", 0, 0 }, { HDA_VIA_VT82XX, "VIA VT8251/8237A",0, 0 }, { HDA_SIS_966, "SiS 966/968", 0, 0 }, { HDA_ULI_M5461, "ULI M5461", 0, 0 }, /* Unknown */ { HDA_INTEL_ALL, "Intel", 0, 0 }, { HDA_NVIDIA_ALL, "NVIDIA", 0, 0 }, { HDA_ATI_ALL, "ATI", 0, 0 }, { HDA_AMD_ALL, "AMD", 0, 0 }, { HDA_CREATIVE_ALL, "Creative", 0, 0 }, { HDA_VIA_ALL, "VIA", 0, 0 }, { HDA_SIS_ALL, "SiS", 0, 0 }, { HDA_ULI_ALL, "ULI", 0, 0 }, }; static const struct { uint16_t vendor; uint8_t reg; uint8_t mask; uint8_t enable; } hdac_pcie_snoop[] = { { INTEL_VENDORID, 0x00, 0x00, 0x00 }, { ATI_VENDORID, 0x42, 0xf8, 0x02 }, { NVIDIA_VENDORID, 0x4e, 0xf0, 0x0f }, }; /**************************************************************************** * Function prototypes ****************************************************************************/ static void hdac_intr_handler(void *); static int hdac_reset(struct hdac_softc *, int); static int hdac_get_capabilities(struct hdac_softc *); static void hdac_dma_cb(void *, bus_dma_segment_t *, int, int); static int hdac_dma_alloc(struct hdac_softc *, struct hdac_dma *, bus_size_t); static void hdac_dma_free(struct hdac_softc *, struct hdac_dma *); static int hdac_mem_alloc(struct hdac_softc *); static void hdac_mem_free(struct hdac_softc *); static int hdac_irq_alloc(struct hdac_softc *); static void hdac_irq_free(struct hdac_softc *); static void hdac_corb_init(struct hdac_softc *); static void hdac_rirb_init(struct hdac_softc *); static void hdac_corb_start(struct hdac_softc *); static void hdac_rirb_start(struct hdac_softc *); static void hdac_attach2(void *); static uint32_t hdac_send_command(struct hdac_softc *, nid_t, uint32_t); static int hdac_probe(device_t); static int hdac_attach(device_t); static int hdac_detach(device_t); static int hdac_suspend(device_t); static int hdac_resume(device_t); static int hdac_rirb_flush(struct hdac_softc *sc); static int hdac_unsolq_flush(struct hdac_softc *sc); #define hdac_command(a1, a2, a3) \ hdac_send_command(a1, a3, a2) /* This function surely going to make its way into upper level someday. */ static void hdac_config_fetch(struct hdac_softc *sc, uint32_t *on, uint32_t *off) { const char *res = NULL; int i = 0, j, k, len, inv; if (resource_string_value(device_get_name(sc->dev), device_get_unit(sc->dev), "config", &res) != 0) return; if (!(res != NULL && strlen(res) > 0)) return; HDA_BOOTVERBOSE( device_printf(sc->dev, "Config options:"); ); for (;;) { while (res[i] != '\0' && (res[i] == ',' || isspace(res[i]) != 0)) i++; if (res[i] == '\0') { HDA_BOOTVERBOSE( printf("\n"); ); return; } j = i; while (res[j] != '\0' && !(res[j] == ',' || isspace(res[j]) != 0)) j++; len = j - i; if (len > 2 && strncmp(res + i, "no", 2) == 0) inv = 2; else inv = 0; for (k = 0; len > inv && k < nitems(hdac_quirks_tab); k++) { if (strncmp(res + i + inv, hdac_quirks_tab[k].key, len - inv) != 0) continue; if (len - inv != strlen(hdac_quirks_tab[k].key)) continue; HDA_BOOTVERBOSE( printf(" %s%s", (inv != 0) ? "no" : "", hdac_quirks_tab[k].key); ); if (inv == 0) { *on |= hdac_quirks_tab[k].value; *on &= ~hdac_quirks_tab[k].value; } else if (inv != 0) { *off |= hdac_quirks_tab[k].value; *off &= ~hdac_quirks_tab[k].value; } break; } i = j; } } /**************************************************************************** * void hdac_intr_handler(void *) * * Interrupt handler. Processes interrupts received from the hdac. ****************************************************************************/ static void hdac_intr_handler(void *context) { struct hdac_softc *sc; device_t dev; uint32_t intsts; uint8_t rirbsts; int i; sc = (struct hdac_softc *)context; hdac_lock(sc); /* Do we have anything to do? */ intsts = HDAC_READ_4(&sc->mem, HDAC_INTSTS); if ((intsts & HDAC_INTSTS_GIS) == 0) { hdac_unlock(sc); return; } /* Was this a controller interrupt? */ if (intsts & HDAC_INTSTS_CIS) { rirbsts = HDAC_READ_1(&sc->mem, HDAC_RIRBSTS); /* Get as many responses that we can */ while (rirbsts & HDAC_RIRBSTS_RINTFL) { HDAC_WRITE_1(&sc->mem, HDAC_RIRBSTS, HDAC_RIRBSTS_RINTFL); hdac_rirb_flush(sc); rirbsts = HDAC_READ_1(&sc->mem, HDAC_RIRBSTS); } if (sc->unsolq_rp != sc->unsolq_wp) taskqueue_enqueue(taskqueue_thread, &sc->unsolq_task); } if (intsts & HDAC_INTSTS_SIS_MASK) { for (i = 0; i < sc->num_ss; i++) { if ((intsts & (1 << i)) == 0) continue; HDAC_WRITE_1(&sc->mem, (i << 5) + HDAC_SDSTS, HDAC_SDSTS_DESE | HDAC_SDSTS_FIFOE | HDAC_SDSTS_BCIS ); if ((dev = sc->streams[i].dev) != NULL) { HDAC_STREAM_INTR(dev, sc->streams[i].dir, sc->streams[i].stream); } } } HDAC_WRITE_4(&sc->mem, HDAC_INTSTS, intsts); hdac_unlock(sc); } static void hdac_poll_callback(void *arg) { struct hdac_softc *sc = arg; if (sc == NULL) return; hdac_lock(sc); if (sc->polling == 0) { hdac_unlock(sc); return; } callout_reset(&sc->poll_callout, sc->poll_ival, hdac_poll_callback, sc); hdac_unlock(sc); hdac_intr_handler(sc); } /**************************************************************************** * int hdac_reset(hdac_softc *, int) * * Reset the hdac to a quiescent and known state. ****************************************************************************/ static int hdac_reset(struct hdac_softc *sc, int wakeup) { uint32_t gctl; int count, i; /* * Stop all Streams DMA engine */ for (i = 0; i < sc->num_iss; i++) HDAC_WRITE_4(&sc->mem, HDAC_ISDCTL(sc, i), 0x0); for (i = 0; i < sc->num_oss; i++) HDAC_WRITE_4(&sc->mem, HDAC_OSDCTL(sc, i), 0x0); for (i = 0; i < sc->num_bss; i++) HDAC_WRITE_4(&sc->mem, HDAC_BSDCTL(sc, i), 0x0); /* * Stop Control DMA engines. */ HDAC_WRITE_1(&sc->mem, HDAC_CORBCTL, 0x0); HDAC_WRITE_1(&sc->mem, HDAC_RIRBCTL, 0x0); /* * Reset DMA position buffer. */ HDAC_WRITE_4(&sc->mem, HDAC_DPIBLBASE, 0x0); HDAC_WRITE_4(&sc->mem, HDAC_DPIBUBASE, 0x0); /* * Reset the controller. The reset must remain asserted for * a minimum of 100us. */ gctl = HDAC_READ_4(&sc->mem, HDAC_GCTL); HDAC_WRITE_4(&sc->mem, HDAC_GCTL, gctl & ~HDAC_GCTL_CRST); count = 10000; do { gctl = HDAC_READ_4(&sc->mem, HDAC_GCTL); if (!(gctl & HDAC_GCTL_CRST)) break; DELAY(10); } while (--count); if (gctl & HDAC_GCTL_CRST) { device_printf(sc->dev, "Unable to put hdac in reset\n"); return (ENXIO); } /* If wakeup is not requested - leave the controller in reset state. */ if (!wakeup) return (0); DELAY(100); gctl = HDAC_READ_4(&sc->mem, HDAC_GCTL); HDAC_WRITE_4(&sc->mem, HDAC_GCTL, gctl | HDAC_GCTL_CRST); count = 10000; do { gctl = HDAC_READ_4(&sc->mem, HDAC_GCTL); if (gctl & HDAC_GCTL_CRST) break; DELAY(10); } while (--count); if (!(gctl & HDAC_GCTL_CRST)) { device_printf(sc->dev, "Device stuck in reset\n"); return (ENXIO); } /* * Wait for codecs to finish their own reset sequence. The delay here * should be of 250us but for some reasons, it's not enough on my * computer. Let's use twice as much as necessary to make sure that * it's reset properly. */ DELAY(1000); return (0); } /**************************************************************************** * int hdac_get_capabilities(struct hdac_softc *); * * Retreive the general capabilities of the hdac; * Number of Input Streams * Number of Output Streams * Number of bidirectional Streams * 64bit ready * CORB and RIRB sizes ****************************************************************************/ static int hdac_get_capabilities(struct hdac_softc *sc) { uint16_t gcap; uint8_t corbsize, rirbsize; gcap = HDAC_READ_2(&sc->mem, HDAC_GCAP); sc->num_iss = HDAC_GCAP_ISS(gcap); sc->num_oss = HDAC_GCAP_OSS(gcap); sc->num_bss = HDAC_GCAP_BSS(gcap); sc->num_ss = sc->num_iss + sc->num_oss + sc->num_bss; sc->num_sdo = HDAC_GCAP_NSDO(gcap); sc->support_64bit = (gcap & HDAC_GCAP_64OK) != 0; if (sc->quirks_on & HDAC_QUIRK_64BIT) sc->support_64bit = 1; else if (sc->quirks_off & HDAC_QUIRK_64BIT) sc->support_64bit = 0; corbsize = HDAC_READ_1(&sc->mem, HDAC_CORBSIZE); if ((corbsize & HDAC_CORBSIZE_CORBSZCAP_256) == HDAC_CORBSIZE_CORBSZCAP_256) sc->corb_size = 256; else if ((corbsize & HDAC_CORBSIZE_CORBSZCAP_16) == HDAC_CORBSIZE_CORBSZCAP_16) sc->corb_size = 16; else if ((corbsize & HDAC_CORBSIZE_CORBSZCAP_2) == HDAC_CORBSIZE_CORBSZCAP_2) sc->corb_size = 2; else { device_printf(sc->dev, "%s: Invalid corb size (%x)\n", __func__, corbsize); return (ENXIO); } rirbsize = HDAC_READ_1(&sc->mem, HDAC_RIRBSIZE); if ((rirbsize & HDAC_RIRBSIZE_RIRBSZCAP_256) == HDAC_RIRBSIZE_RIRBSZCAP_256) sc->rirb_size = 256; else if ((rirbsize & HDAC_RIRBSIZE_RIRBSZCAP_16) == HDAC_RIRBSIZE_RIRBSZCAP_16) sc->rirb_size = 16; else if ((rirbsize & HDAC_RIRBSIZE_RIRBSZCAP_2) == HDAC_RIRBSIZE_RIRBSZCAP_2) sc->rirb_size = 2; else { device_printf(sc->dev, "%s: Invalid rirb size (%x)\n", __func__, rirbsize); return (ENXIO); } HDA_BOOTVERBOSE( device_printf(sc->dev, "Caps: OSS %d, ISS %d, BSS %d, " "NSDO %d%s, CORB %d, RIRB %d\n", sc->num_oss, sc->num_iss, sc->num_bss, 1 << sc->num_sdo, sc->support_64bit ? ", 64bit" : "", sc->corb_size, sc->rirb_size); ); return (0); } /**************************************************************************** * void hdac_dma_cb * * This function is called by bus_dmamap_load when the mapping has been * established. We just record the physical address of the mapping into * the struct hdac_dma passed in. ****************************************************************************/ static void hdac_dma_cb(void *callback_arg, bus_dma_segment_t *segs, int nseg, int error) { struct hdac_dma *dma; if (error == 0) { dma = (struct hdac_dma *)callback_arg; dma->dma_paddr = segs[0].ds_addr; } } /**************************************************************************** * int hdac_dma_alloc * * This function allocate and setup a dma region (struct hdac_dma). * It must be freed by a corresponding hdac_dma_free. ****************************************************************************/ static int hdac_dma_alloc(struct hdac_softc *sc, struct hdac_dma *dma, bus_size_t size) { bus_size_t roundsz; int result; roundsz = roundup2(size, HDA_DMA_ALIGNMENT); bzero(dma, sizeof(*dma)); /* * Create a DMA tag */ result = bus_dma_tag_create( bus_get_dma_tag(sc->dev), /* parent */ HDA_DMA_ALIGNMENT, /* alignment */ 0, /* boundary */ (sc->support_64bit) ? BUS_SPACE_MAXADDR : BUS_SPACE_MAXADDR_32BIT, /* lowaddr */ BUS_SPACE_MAXADDR, /* highaddr */ NULL, /* filtfunc */ NULL, /* fistfuncarg */ roundsz, /* maxsize */ 1, /* nsegments */ roundsz, /* maxsegsz */ 0, /* flags */ NULL, /* lockfunc */ NULL, /* lockfuncarg */ &dma->dma_tag); /* dmat */ if (result != 0) { device_printf(sc->dev, "%s: bus_dma_tag_create failed (%d)\n", __func__, result); goto hdac_dma_alloc_fail; } /* * Allocate DMA memory */ result = bus_dmamem_alloc(dma->dma_tag, (void **)&dma->dma_vaddr, BUS_DMA_NOWAIT | BUS_DMA_ZERO | ((sc->flags & HDAC_F_DMA_NOCACHE) ? BUS_DMA_NOCACHE : BUS_DMA_COHERENT), &dma->dma_map); if (result != 0) { device_printf(sc->dev, "%s: bus_dmamem_alloc failed (%d)\n", __func__, result); goto hdac_dma_alloc_fail; } dma->dma_size = roundsz; /* * Map the memory */ result = bus_dmamap_load(dma->dma_tag, dma->dma_map, (void *)dma->dma_vaddr, roundsz, hdac_dma_cb, (void *)dma, 0); if (result != 0 || dma->dma_paddr == 0) { if (result == 0) result = ENOMEM; device_printf(sc->dev, "%s: bus_dmamem_load failed (%d)\n", __func__, result); goto hdac_dma_alloc_fail; } HDA_BOOTHVERBOSE( device_printf(sc->dev, "%s: size=%ju -> roundsz=%ju\n", __func__, (uintmax_t)size, (uintmax_t)roundsz); ); return (0); hdac_dma_alloc_fail: hdac_dma_free(sc, dma); return (result); } /**************************************************************************** * void hdac_dma_free(struct hdac_softc *, struct hdac_dma *) * * Free a struct dhac_dma that has been previously allocated via the * hdac_dma_alloc function. ****************************************************************************/ static void hdac_dma_free(struct hdac_softc *sc, struct hdac_dma *dma) { if (dma->dma_paddr != 0) { /* Flush caches */ bus_dmamap_sync(dma->dma_tag, dma->dma_map, BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE); bus_dmamap_unload(dma->dma_tag, dma->dma_map); dma->dma_paddr = 0; } if (dma->dma_vaddr != NULL) { bus_dmamem_free(dma->dma_tag, dma->dma_vaddr, dma->dma_map); dma->dma_vaddr = NULL; } if (dma->dma_tag != NULL) { bus_dma_tag_destroy(dma->dma_tag); dma->dma_tag = NULL; } dma->dma_size = 0; } /**************************************************************************** * int hdac_mem_alloc(struct hdac_softc *) * * Allocate all the bus resources necessary to speak with the physical * controller. ****************************************************************************/ static int hdac_mem_alloc(struct hdac_softc *sc) { struct hdac_mem *mem; mem = &sc->mem; mem->mem_rid = PCIR_BAR(0); mem->mem_res = bus_alloc_resource_any(sc->dev, SYS_RES_MEMORY, &mem->mem_rid, RF_ACTIVE); if (mem->mem_res == NULL) { device_printf(sc->dev, "%s: Unable to allocate memory resource\n", __func__); return (ENOMEM); } mem->mem_tag = rman_get_bustag(mem->mem_res); mem->mem_handle = rman_get_bushandle(mem->mem_res); return (0); } /**************************************************************************** * void hdac_mem_free(struct hdac_softc *) * * Free up resources previously allocated by hdac_mem_alloc. ****************************************************************************/ static void hdac_mem_free(struct hdac_softc *sc) { struct hdac_mem *mem; mem = &sc->mem; if (mem->mem_res != NULL) bus_release_resource(sc->dev, SYS_RES_MEMORY, mem->mem_rid, mem->mem_res); mem->mem_res = NULL; } /**************************************************************************** * int hdac_irq_alloc(struct hdac_softc *) * * Allocate and setup the resources necessary for interrupt handling. ****************************************************************************/ static int hdac_irq_alloc(struct hdac_softc *sc) { struct hdac_irq *irq; int result; irq = &sc->irq; irq->irq_rid = 0x0; if ((sc->quirks_off & HDAC_QUIRK_MSI) == 0 && (result = pci_msi_count(sc->dev)) == 1 && pci_alloc_msi(sc->dev, &result) == 0) irq->irq_rid = 0x1; irq->irq_res = bus_alloc_resource_any(sc->dev, SYS_RES_IRQ, &irq->irq_rid, RF_SHAREABLE | RF_ACTIVE); if (irq->irq_res == NULL) { device_printf(sc->dev, "%s: Unable to allocate irq\n", __func__); goto hdac_irq_alloc_fail; } result = bus_setup_intr(sc->dev, irq->irq_res, INTR_MPSAFE | INTR_TYPE_AV, NULL, hdac_intr_handler, sc, &irq->irq_handle); if (result != 0) { device_printf(sc->dev, "%s: Unable to setup interrupt handler (%d)\n", __func__, result); goto hdac_irq_alloc_fail; } return (0); hdac_irq_alloc_fail: hdac_irq_free(sc); return (ENXIO); } /**************************************************************************** * void hdac_irq_free(struct hdac_softc *) * * Free up resources previously allocated by hdac_irq_alloc. ****************************************************************************/ static void hdac_irq_free(struct hdac_softc *sc) { struct hdac_irq *irq; irq = &sc->irq; if (irq->irq_res != NULL && irq->irq_handle != NULL) bus_teardown_intr(sc->dev, irq->irq_res, irq->irq_handle); if (irq->irq_res != NULL) bus_release_resource(sc->dev, SYS_RES_IRQ, irq->irq_rid, irq->irq_res); if (irq->irq_rid == 0x1) pci_release_msi(sc->dev); irq->irq_handle = NULL; irq->irq_res = NULL; irq->irq_rid = 0x0; } /**************************************************************************** * void hdac_corb_init(struct hdac_softc *) * * Initialize the corb registers for operations but do not start it up yet. * The CORB engine must not be running when this function is called. ****************************************************************************/ static void hdac_corb_init(struct hdac_softc *sc) { uint8_t corbsize; uint64_t corbpaddr; /* Setup the CORB size. */ switch (sc->corb_size) { case 256: corbsize = HDAC_CORBSIZE_CORBSIZE(HDAC_CORBSIZE_CORBSIZE_256); break; case 16: corbsize = HDAC_CORBSIZE_CORBSIZE(HDAC_CORBSIZE_CORBSIZE_16); break; case 2: corbsize = HDAC_CORBSIZE_CORBSIZE(HDAC_CORBSIZE_CORBSIZE_2); break; default: panic("%s: Invalid CORB size (%x)\n", __func__, sc->corb_size); } HDAC_WRITE_1(&sc->mem, HDAC_CORBSIZE, corbsize); /* Setup the CORB Address in the hdac */ corbpaddr = (uint64_t)sc->corb_dma.dma_paddr; HDAC_WRITE_4(&sc->mem, HDAC_CORBLBASE, (uint32_t)corbpaddr); HDAC_WRITE_4(&sc->mem, HDAC_CORBUBASE, (uint32_t)(corbpaddr >> 32)); /* Set the WP and RP */ sc->corb_wp = 0; HDAC_WRITE_2(&sc->mem, HDAC_CORBWP, sc->corb_wp); HDAC_WRITE_2(&sc->mem, HDAC_CORBRP, HDAC_CORBRP_CORBRPRST); /* * The HDA specification indicates that the CORBRPRST bit will always * read as zero. Unfortunately, it seems that at least the 82801G * doesn't reset the bit to zero, which stalls the corb engine. * manually reset the bit to zero before continuing. */ HDAC_WRITE_2(&sc->mem, HDAC_CORBRP, 0x0); /* Enable CORB error reporting */ #if 0 HDAC_WRITE_1(&sc->mem, HDAC_CORBCTL, HDAC_CORBCTL_CMEIE); #endif } /**************************************************************************** * void hdac_rirb_init(struct hdac_softc *) * * Initialize the rirb registers for operations but do not start it up yet. * The RIRB engine must not be running when this function is called. ****************************************************************************/ static void hdac_rirb_init(struct hdac_softc *sc) { uint8_t rirbsize; uint64_t rirbpaddr; /* Setup the RIRB size. */ switch (sc->rirb_size) { case 256: rirbsize = HDAC_RIRBSIZE_RIRBSIZE(HDAC_RIRBSIZE_RIRBSIZE_256); break; case 16: rirbsize = HDAC_RIRBSIZE_RIRBSIZE(HDAC_RIRBSIZE_RIRBSIZE_16); break; case 2: rirbsize = HDAC_RIRBSIZE_RIRBSIZE(HDAC_RIRBSIZE_RIRBSIZE_2); break; default: panic("%s: Invalid RIRB size (%x)\n", __func__, sc->rirb_size); } HDAC_WRITE_1(&sc->mem, HDAC_RIRBSIZE, rirbsize); /* Setup the RIRB Address in the hdac */ rirbpaddr = (uint64_t)sc->rirb_dma.dma_paddr; HDAC_WRITE_4(&sc->mem, HDAC_RIRBLBASE, (uint32_t)rirbpaddr); HDAC_WRITE_4(&sc->mem, HDAC_RIRBUBASE, (uint32_t)(rirbpaddr >> 32)); /* Setup the WP and RP */ sc->rirb_rp = 0; HDAC_WRITE_2(&sc->mem, HDAC_RIRBWP, HDAC_RIRBWP_RIRBWPRST); /* Setup the interrupt threshold */ HDAC_WRITE_2(&sc->mem, HDAC_RINTCNT, sc->rirb_size / 2); /* Enable Overrun and response received reporting */ #if 0 HDAC_WRITE_1(&sc->mem, HDAC_RIRBCTL, HDAC_RIRBCTL_RIRBOIC | HDAC_RIRBCTL_RINTCTL); #else HDAC_WRITE_1(&sc->mem, HDAC_RIRBCTL, HDAC_RIRBCTL_RINTCTL); #endif /* * Make sure that the Host CPU cache doesn't contain any dirty * cache lines that falls in the rirb. If I understood correctly, it * should be sufficient to do this only once as the rirb is purely * read-only from now on. */ bus_dmamap_sync(sc->rirb_dma.dma_tag, sc->rirb_dma.dma_map, BUS_DMASYNC_PREREAD); } /**************************************************************************** * void hdac_corb_start(hdac_softc *) * * Startup the corb DMA engine ****************************************************************************/ static void hdac_corb_start(struct hdac_softc *sc) { uint32_t corbctl; corbctl = HDAC_READ_1(&sc->mem, HDAC_CORBCTL); corbctl |= HDAC_CORBCTL_CORBRUN; HDAC_WRITE_1(&sc->mem, HDAC_CORBCTL, corbctl); } /**************************************************************************** * void hdac_rirb_start(hdac_softc *) * * Startup the rirb DMA engine ****************************************************************************/ static void hdac_rirb_start(struct hdac_softc *sc) { uint32_t rirbctl; rirbctl = HDAC_READ_1(&sc->mem, HDAC_RIRBCTL); rirbctl |= HDAC_RIRBCTL_RIRBDMAEN; HDAC_WRITE_1(&sc->mem, HDAC_RIRBCTL, rirbctl); } static int hdac_rirb_flush(struct hdac_softc *sc) { struct hdac_rirb *rirb_base, *rirb; nid_t cad; uint32_t resp, resp_ex; uint8_t rirbwp; int ret; rirb_base = (struct hdac_rirb *)sc->rirb_dma.dma_vaddr; rirbwp = HDAC_READ_1(&sc->mem, HDAC_RIRBWP); bus_dmamap_sync(sc->rirb_dma.dma_tag, sc->rirb_dma.dma_map, BUS_DMASYNC_POSTREAD); ret = 0; while (sc->rirb_rp != rirbwp) { sc->rirb_rp++; sc->rirb_rp %= sc->rirb_size; rirb = &rirb_base[sc->rirb_rp]; resp = le32toh(rirb->response); resp_ex = le32toh(rirb->response_ex); cad = HDAC_RIRB_RESPONSE_EX_SDATA_IN(resp_ex); if (resp_ex & HDAC_RIRB_RESPONSE_EX_UNSOLICITED) { sc->unsolq[sc->unsolq_wp++] = resp; sc->unsolq_wp %= HDAC_UNSOLQ_MAX; sc->unsolq[sc->unsolq_wp++] = cad; sc->unsolq_wp %= HDAC_UNSOLQ_MAX; } else if (sc->codecs[cad].pending <= 0) { device_printf(sc->dev, "Unexpected unsolicited " "response from address %d: %08x\n", cad, resp); } else { sc->codecs[cad].response = resp; sc->codecs[cad].pending--; } ret++; } bus_dmamap_sync(sc->rirb_dma.dma_tag, sc->rirb_dma.dma_map, BUS_DMASYNC_PREREAD); return (ret); } static int hdac_unsolq_flush(struct hdac_softc *sc) { device_t child; nid_t cad; uint32_t resp; int ret = 0; if (sc->unsolq_st == HDAC_UNSOLQ_READY) { sc->unsolq_st = HDAC_UNSOLQ_BUSY; while (sc->unsolq_rp != sc->unsolq_wp) { resp = sc->unsolq[sc->unsolq_rp++]; sc->unsolq_rp %= HDAC_UNSOLQ_MAX; cad = sc->unsolq[sc->unsolq_rp++]; sc->unsolq_rp %= HDAC_UNSOLQ_MAX; if ((child = sc->codecs[cad].dev) != NULL) HDAC_UNSOL_INTR(child, resp); ret++; } sc->unsolq_st = HDAC_UNSOLQ_READY; } return (ret); } /**************************************************************************** * uint32_t hdac_command_sendone_internal * * Wrapper function that sends only one command to a given codec ****************************************************************************/ static uint32_t hdac_send_command(struct hdac_softc *sc, nid_t cad, uint32_t verb) { int timeout; uint32_t *corb; if (!hdac_lockowned(sc)) device_printf(sc->dev, "WARNING!!!! mtx not owned!!!!\n"); verb &= ~HDA_CMD_CAD_MASK; verb |= ((uint32_t)cad) << HDA_CMD_CAD_SHIFT; sc->codecs[cad].response = HDA_INVALID; sc->codecs[cad].pending++; sc->corb_wp++; sc->corb_wp %= sc->corb_size; corb = (uint32_t *)sc->corb_dma.dma_vaddr; bus_dmamap_sync(sc->corb_dma.dma_tag, sc->corb_dma.dma_map, BUS_DMASYNC_PREWRITE); corb[sc->corb_wp] = htole32(verb); bus_dmamap_sync(sc->corb_dma.dma_tag, sc->corb_dma.dma_map, BUS_DMASYNC_POSTWRITE); HDAC_WRITE_2(&sc->mem, HDAC_CORBWP, sc->corb_wp); timeout = 10000; do { if (hdac_rirb_flush(sc) == 0) DELAY(10); } while (sc->codecs[cad].pending != 0 && --timeout); if (sc->codecs[cad].pending != 0) { device_printf(sc->dev, "Command timeout on address %d\n", cad); sc->codecs[cad].pending = 0; } if (sc->unsolq_rp != sc->unsolq_wp) taskqueue_enqueue(taskqueue_thread, &sc->unsolq_task); return (sc->codecs[cad].response); } /**************************************************************************** * Device Methods ****************************************************************************/ /**************************************************************************** * int hdac_probe(device_t) * * Probe for the presence of an hdac. If none is found, check for a generic * match using the subclass of the device. ****************************************************************************/ static int hdac_probe(device_t dev) { int i, result; uint32_t model; uint16_t class, subclass; char desc[64]; model = (uint32_t)pci_get_device(dev) << 16; model |= (uint32_t)pci_get_vendor(dev) & 0x0000ffff; class = pci_get_class(dev); subclass = pci_get_subclass(dev); bzero(desc, sizeof(desc)); result = ENXIO; for (i = 0; i < nitems(hdac_devices); i++) { if (hdac_devices[i].model == model) { strlcpy(desc, hdac_devices[i].desc, sizeof(desc)); result = BUS_PROBE_DEFAULT; break; } if (HDA_DEV_MATCH(hdac_devices[i].model, model) && class == PCIC_MULTIMEDIA && subclass == PCIS_MULTIMEDIA_HDA) { snprintf(desc, sizeof(desc), "%s (0x%04x)", hdac_devices[i].desc, pci_get_device(dev)); result = BUS_PROBE_GENERIC; break; } } if (result == ENXIO && class == PCIC_MULTIMEDIA && subclass == PCIS_MULTIMEDIA_HDA) { snprintf(desc, sizeof(desc), "Generic (0x%08x)", model); result = BUS_PROBE_GENERIC; } if (result != ENXIO) { strlcat(desc, " HDA Controller", sizeof(desc)); device_set_desc_copy(dev, desc); } return (result); } static void hdac_unsolq_task(void *context, int pending) { struct hdac_softc *sc; sc = (struct hdac_softc *)context; hdac_lock(sc); hdac_unsolq_flush(sc); hdac_unlock(sc); } /**************************************************************************** * int hdac_attach(device_t) * * Attach the device into the kernel. Interrupts usually won't be enabled * when this function is called. Setup everything that doesn't require * interrupts and defer probing of codecs until interrupts are enabled. ****************************************************************************/ static int hdac_attach(device_t dev) { struct hdac_softc *sc; int result; int i, devid = -1; uint32_t model; uint16_t class, subclass; uint16_t vendor; uint8_t v; sc = device_get_softc(dev); HDA_BOOTVERBOSE( device_printf(dev, "PCI card vendor: 0x%04x, device: 0x%04x\n", pci_get_subvendor(dev), pci_get_subdevice(dev)); device_printf(dev, "HDA Driver Revision: %s\n", HDA_DRV_TEST_REV); ); model = (uint32_t)pci_get_device(dev) << 16; model |= (uint32_t)pci_get_vendor(dev) & 0x0000ffff; class = pci_get_class(dev); subclass = pci_get_subclass(dev); for (i = 0; i < nitems(hdac_devices); i++) { if (hdac_devices[i].model == model) { devid = i; break; } if (HDA_DEV_MATCH(hdac_devices[i].model, model) && class == PCIC_MULTIMEDIA && subclass == PCIS_MULTIMEDIA_HDA) { devid = i; break; } } sc->lock = snd_mtxcreate(device_get_nameunit(dev), "HDA driver mutex"); sc->dev = dev; TASK_INIT(&sc->unsolq_task, 0, hdac_unsolq_task, sc); callout_init(&sc->poll_callout, 1); for (i = 0; i < HDAC_CODEC_MAX; i++) sc->codecs[i].dev = NULL; if (devid >= 0) { sc->quirks_on = hdac_devices[devid].quirks_on; sc->quirks_off = hdac_devices[devid].quirks_off; } else { sc->quirks_on = 0; sc->quirks_off = 0; } if (resource_int_value(device_get_name(dev), device_get_unit(dev), "msi", &i) == 0) { if (i == 0) sc->quirks_off |= HDAC_QUIRK_MSI; else { sc->quirks_on |= HDAC_QUIRK_MSI; sc->quirks_off |= ~HDAC_QUIRK_MSI; } } hdac_config_fetch(sc, &sc->quirks_on, &sc->quirks_off); HDA_BOOTVERBOSE( device_printf(sc->dev, "Config options: on=0x%08x off=0x%08x\n", sc->quirks_on, sc->quirks_off); ); sc->poll_ival = hz; if (resource_int_value(device_get_name(dev), device_get_unit(dev), "polling", &i) == 0 && i != 0) sc->polling = 1; else sc->polling = 0; pci_enable_busmaster(dev); vendor = pci_get_vendor(dev); if (vendor == INTEL_VENDORID) { /* TCSEL -> TC0 */ v = pci_read_config(dev, 0x44, 1); pci_write_config(dev, 0x44, v & 0xf8, 1); HDA_BOOTHVERBOSE( device_printf(dev, "TCSEL: 0x%02d -> 0x%02d\n", v, pci_read_config(dev, 0x44, 1)); ); } #if defined(__i386__) || defined(__amd64__) sc->flags |= HDAC_F_DMA_NOCACHE; if (resource_int_value(device_get_name(dev), device_get_unit(dev), "snoop", &i) == 0 && i != 0) { #else sc->flags &= ~HDAC_F_DMA_NOCACHE; #endif /* * Try to enable PCIe snoop to avoid messing around with * uncacheable DMA attribute. Since PCIe snoop register * config is pretty much vendor specific, there are no * general solutions on how to enable it, forcing us (even * Microsoft) to enable uncacheable or write combined DMA * by default. * * http://msdn2.microsoft.com/en-us/library/ms790324.aspx */ for (i = 0; i < nitems(hdac_pcie_snoop); i++) { if (hdac_pcie_snoop[i].vendor != vendor) continue; sc->flags &= ~HDAC_F_DMA_NOCACHE; if (hdac_pcie_snoop[i].reg == 0x00) break; v = pci_read_config(dev, hdac_pcie_snoop[i].reg, 1); if ((v & hdac_pcie_snoop[i].enable) == hdac_pcie_snoop[i].enable) break; v &= hdac_pcie_snoop[i].mask; v |= hdac_pcie_snoop[i].enable; pci_write_config(dev, hdac_pcie_snoop[i].reg, v, 1); v = pci_read_config(dev, hdac_pcie_snoop[i].reg, 1); if ((v & hdac_pcie_snoop[i].enable) != hdac_pcie_snoop[i].enable) { HDA_BOOTVERBOSE( device_printf(dev, "WARNING: Failed to enable PCIe " "snoop!\n"); ); #if defined(__i386__) || defined(__amd64__) sc->flags |= HDAC_F_DMA_NOCACHE; #endif } break; } #if defined(__i386__) || defined(__amd64__) } #endif HDA_BOOTHVERBOSE( device_printf(dev, "DMA Coherency: %s / vendor=0x%04x\n", (sc->flags & HDAC_F_DMA_NOCACHE) ? "Uncacheable" : "PCIe snoop", vendor); ); /* Allocate resources */ result = hdac_mem_alloc(sc); if (result != 0) goto hdac_attach_fail; result = hdac_irq_alloc(sc); if (result != 0) goto hdac_attach_fail; /* Get Capabilities */ result = hdac_get_capabilities(sc); if (result != 0) goto hdac_attach_fail; /* Allocate CORB, RIRB, POS and BDLs dma memory */ result = hdac_dma_alloc(sc, &sc->corb_dma, sc->corb_size * sizeof(uint32_t)); if (result != 0) goto hdac_attach_fail; result = hdac_dma_alloc(sc, &sc->rirb_dma, sc->rirb_size * sizeof(struct hdac_rirb)); if (result != 0) goto hdac_attach_fail; sc->streams = malloc(sizeof(struct hdac_stream) * sc->num_ss, M_HDAC, M_ZERO | M_WAITOK); for (i = 0; i < sc->num_ss; i++) { result = hdac_dma_alloc(sc, &sc->streams[i].bdl, sizeof(struct hdac_bdle) * HDA_BDL_MAX); if (result != 0) goto hdac_attach_fail; } if (sc->quirks_on & HDAC_QUIRK_DMAPOS) { if (hdac_dma_alloc(sc, &sc->pos_dma, (sc->num_ss) * 8) != 0) { HDA_BOOTVERBOSE( device_printf(dev, "Failed to " "allocate DMA pos buffer " "(non-fatal)\n"); ); } else { uint64_t addr = sc->pos_dma.dma_paddr; HDAC_WRITE_4(&sc->mem, HDAC_DPIBUBASE, addr >> 32); HDAC_WRITE_4(&sc->mem, HDAC_DPIBLBASE, (addr & HDAC_DPLBASE_DPLBASE_MASK) | HDAC_DPLBASE_DPLBASE_DMAPBE); } } result = bus_dma_tag_create( bus_get_dma_tag(sc->dev), /* parent */ HDA_DMA_ALIGNMENT, /* alignment */ 0, /* boundary */ (sc->support_64bit) ? BUS_SPACE_MAXADDR : BUS_SPACE_MAXADDR_32BIT, /* lowaddr */ BUS_SPACE_MAXADDR, /* highaddr */ NULL, /* filtfunc */ NULL, /* fistfuncarg */ HDA_BUFSZ_MAX, /* maxsize */ 1, /* nsegments */ HDA_BUFSZ_MAX, /* maxsegsz */ 0, /* flags */ NULL, /* lockfunc */ NULL, /* lockfuncarg */ &sc->chan_dmat); /* dmat */ if (result != 0) { device_printf(dev, "%s: bus_dma_tag_create failed (%d)\n", __func__, result); goto hdac_attach_fail; } /* Quiesce everything */ HDA_BOOTHVERBOSE( device_printf(dev, "Reset controller...\n"); ); hdac_reset(sc, 1); /* Initialize the CORB and RIRB */ hdac_corb_init(sc); hdac_rirb_init(sc); /* Defer remaining of initialization until interrupts are enabled */ sc->intrhook.ich_func = hdac_attach2; sc->intrhook.ich_arg = (void *)sc; if (cold == 0 || config_intrhook_establish(&sc->intrhook) != 0) { sc->intrhook.ich_func = NULL; hdac_attach2((void *)sc); } return (0); hdac_attach_fail: hdac_irq_free(sc); if (sc->streams != NULL) for (i = 0; i < sc->num_ss; i++) hdac_dma_free(sc, &sc->streams[i].bdl); free(sc->streams, M_HDAC); hdac_dma_free(sc, &sc->rirb_dma); hdac_dma_free(sc, &sc->corb_dma); hdac_mem_free(sc); snd_mtxfree(sc->lock); return (ENXIO); } static int sysctl_hdac_pindump(SYSCTL_HANDLER_ARGS) { struct hdac_softc *sc; device_t *devlist; device_t dev; int devcount, i, err, val; dev = oidp->oid_arg1; sc = device_get_softc(dev); if (sc == NULL) return (EINVAL); val = 0; err = sysctl_handle_int(oidp, &val, 0, req); if (err != 0 || req->newptr == NULL || val == 0) return (err); /* XXX: Temporary. For debugging. */ if (val == 100) { hdac_suspend(dev); return (0); } else if (val == 101) { hdac_resume(dev); return (0); } if ((err = device_get_children(dev, &devlist, &devcount)) != 0) return (err); hdac_lock(sc); for (i = 0; i < devcount; i++) HDAC_PINDUMP(devlist[i]); hdac_unlock(sc); free(devlist, M_TEMP); return (0); } static int hdac_mdata_rate(uint16_t fmt) { static const int mbits[8] = { 8, 16, 32, 32, 32, 32, 32, 32 }; int rate, bits; if (fmt & (1 << 14)) rate = 44100; else rate = 48000; rate *= ((fmt >> 11) & 0x07) + 1; rate /= ((fmt >> 8) & 0x07) + 1; bits = mbits[(fmt >> 4) & 0x03]; bits *= (fmt & 0x0f) + 1; return (rate * bits); } static int hdac_bdata_rate(uint16_t fmt, int output) { static const int bbits[8] = { 8, 16, 20, 24, 32, 32, 32, 32 }; int rate, bits; rate = 48000; rate *= ((fmt >> 11) & 0x07) + 1; bits = bbits[(fmt >> 4) & 0x03]; bits *= (fmt & 0x0f) + 1; if (!output) bits = ((bits + 7) & ~0x07) + 10; return (rate * bits); } static void hdac_poll_reinit(struct hdac_softc *sc) { int i, pollticks, min = 1000000; struct hdac_stream *s; if (sc->polling == 0) return; if (sc->unsol_registered > 0) min = hz / 2; for (i = 0; i < sc->num_ss; i++) { s = &sc->streams[i]; if (s->running == 0) continue; pollticks = ((uint64_t)hz * s->blksz) / (hdac_mdata_rate(s->format) / 8); pollticks >>= 1; if (pollticks > hz) pollticks = hz; if (pollticks < 1) { HDA_BOOTVERBOSE( device_printf(sc->dev, "poll interval < 1 tick !\n"); ); pollticks = 1; } if (min > pollticks) min = pollticks; } HDA_BOOTVERBOSE( device_printf(sc->dev, "poll interval %d -> %d ticks\n", sc->poll_ival, min); ); sc->poll_ival = min; if (min == 1000000) callout_stop(&sc->poll_callout); else callout_reset(&sc->poll_callout, 1, hdac_poll_callback, sc); } static int sysctl_hdac_polling(SYSCTL_HANDLER_ARGS) { struct hdac_softc *sc; device_t dev; uint32_t ctl; int err, val; dev = oidp->oid_arg1; sc = device_get_softc(dev); if (sc == NULL) return (EINVAL); hdac_lock(sc); val = sc->polling; hdac_unlock(sc); err = sysctl_handle_int(oidp, &val, 0, req); if (err != 0 || req->newptr == NULL) return (err); if (val < 0 || val > 1) return (EINVAL); hdac_lock(sc); if (val != sc->polling) { if (val == 0) { callout_stop(&sc->poll_callout); hdac_unlock(sc); callout_drain(&sc->poll_callout); hdac_lock(sc); sc->polling = 0; ctl = HDAC_READ_4(&sc->mem, HDAC_INTCTL); ctl |= HDAC_INTCTL_GIE; HDAC_WRITE_4(&sc->mem, HDAC_INTCTL, ctl); } else { ctl = HDAC_READ_4(&sc->mem, HDAC_INTCTL); ctl &= ~HDAC_INTCTL_GIE; HDAC_WRITE_4(&sc->mem, HDAC_INTCTL, ctl); sc->polling = 1; hdac_poll_reinit(sc); } } hdac_unlock(sc); return (err); } static void hdac_attach2(void *arg) { struct hdac_softc *sc; device_t child; uint32_t vendorid, revisionid; int i; uint16_t statests; sc = (struct hdac_softc *)arg; hdac_lock(sc); /* Remove ourselves from the config hooks */ if (sc->intrhook.ich_func != NULL) { config_intrhook_disestablish(&sc->intrhook); sc->intrhook.ich_func = NULL; } HDA_BOOTHVERBOSE( device_printf(sc->dev, "Starting CORB Engine...\n"); ); hdac_corb_start(sc); HDA_BOOTHVERBOSE( device_printf(sc->dev, "Starting RIRB Engine...\n"); ); hdac_rirb_start(sc); HDA_BOOTHVERBOSE( device_printf(sc->dev, "Enabling controller interrupt...\n"); ); HDAC_WRITE_4(&sc->mem, HDAC_GCTL, HDAC_READ_4(&sc->mem, HDAC_GCTL) | HDAC_GCTL_UNSOL); if (sc->polling == 0) { HDAC_WRITE_4(&sc->mem, HDAC_INTCTL, HDAC_INTCTL_CIE | HDAC_INTCTL_GIE); } DELAY(1000); HDA_BOOTHVERBOSE( device_printf(sc->dev, "Scanning HDA codecs ...\n"); ); statests = HDAC_READ_2(&sc->mem, HDAC_STATESTS); hdac_unlock(sc); for (i = 0; i < HDAC_CODEC_MAX; i++) { if (HDAC_STATESTS_SDIWAKE(statests, i)) { HDA_BOOTHVERBOSE( device_printf(sc->dev, "Found CODEC at address %d\n", i); ); hdac_lock(sc); vendorid = hdac_send_command(sc, i, HDA_CMD_GET_PARAMETER(0, 0x0, HDA_PARAM_VENDOR_ID)); revisionid = hdac_send_command(sc, i, HDA_CMD_GET_PARAMETER(0, 0x0, HDA_PARAM_REVISION_ID)); hdac_unlock(sc); if (vendorid == HDA_INVALID && revisionid == HDA_INVALID) { device_printf(sc->dev, "CODEC is not responding!\n"); continue; } sc->codecs[i].vendor_id = HDA_PARAM_VENDOR_ID_VENDOR_ID(vendorid); sc->codecs[i].device_id = HDA_PARAM_VENDOR_ID_DEVICE_ID(vendorid); sc->codecs[i].revision_id = HDA_PARAM_REVISION_ID_REVISION_ID(revisionid); sc->codecs[i].stepping_id = HDA_PARAM_REVISION_ID_STEPPING_ID(revisionid); child = device_add_child(sc->dev, "hdacc", -1); if (child == NULL) { device_printf(sc->dev, "Failed to add CODEC device\n"); continue; } device_set_ivars(child, (void *)(intptr_t)i); sc->codecs[i].dev = child; } } bus_generic_attach(sc->dev); SYSCTL_ADD_PROC(device_get_sysctl_ctx(sc->dev), SYSCTL_CHILDREN(device_get_sysctl_tree(sc->dev)), OID_AUTO, "pindump", CTLTYPE_INT | CTLFLAG_RW, sc->dev, sizeof(sc->dev), sysctl_hdac_pindump, "I", "Dump pin states/data"); SYSCTL_ADD_PROC(device_get_sysctl_ctx(sc->dev), SYSCTL_CHILDREN(device_get_sysctl_tree(sc->dev)), OID_AUTO, "polling", CTLTYPE_INT | CTLFLAG_RW, sc->dev, sizeof(sc->dev), sysctl_hdac_polling, "I", "Enable polling mode"); } /**************************************************************************** * int hdac_suspend(device_t) * * Suspend and power down HDA bus and codecs. ****************************************************************************/ static int hdac_suspend(device_t dev) { struct hdac_softc *sc = device_get_softc(dev); HDA_BOOTHVERBOSE( device_printf(dev, "Suspend...\n"); ); bus_generic_suspend(dev); hdac_lock(sc); HDA_BOOTHVERBOSE( device_printf(dev, "Reset controller...\n"); ); callout_stop(&sc->poll_callout); hdac_reset(sc, 0); hdac_unlock(sc); callout_drain(&sc->poll_callout); taskqueue_drain(taskqueue_thread, &sc->unsolq_task); HDA_BOOTHVERBOSE( device_printf(dev, "Suspend done\n"); ); return (0); } /**************************************************************************** * int hdac_resume(device_t) * * Powerup and restore HDA bus and codecs state. ****************************************************************************/ static int hdac_resume(device_t dev) { struct hdac_softc *sc = device_get_softc(dev); int error; HDA_BOOTHVERBOSE( device_printf(dev, "Resume...\n"); ); hdac_lock(sc); /* Quiesce everything */ HDA_BOOTHVERBOSE( device_printf(dev, "Reset controller...\n"); ); hdac_reset(sc, 1); /* Initialize the CORB and RIRB */ hdac_corb_init(sc); hdac_rirb_init(sc); HDA_BOOTHVERBOSE( device_printf(dev, "Starting CORB Engine...\n"); ); hdac_corb_start(sc); HDA_BOOTHVERBOSE( device_printf(dev, "Starting RIRB Engine...\n"); ); hdac_rirb_start(sc); HDA_BOOTHVERBOSE( device_printf(dev, "Enabling controller interrupt...\n"); ); HDAC_WRITE_4(&sc->mem, HDAC_GCTL, HDAC_READ_4(&sc->mem, HDAC_GCTL) | HDAC_GCTL_UNSOL); HDAC_WRITE_4(&sc->mem, HDAC_INTCTL, HDAC_INTCTL_CIE | HDAC_INTCTL_GIE); DELAY(1000); hdac_poll_reinit(sc); hdac_unlock(sc); error = bus_generic_resume(dev); HDA_BOOTHVERBOSE( device_printf(dev, "Resume done\n"); ); return (error); } /**************************************************************************** * int hdac_detach(device_t) * * Detach and free up resources utilized by the hdac device. ****************************************************************************/ static int hdac_detach(device_t dev) { struct hdac_softc *sc = device_get_softc(dev); device_t *devlist; int cad, i, devcount, error; if ((error = device_get_children(dev, &devlist, &devcount)) != 0) return (error); for (i = 0; i < devcount; i++) { cad = (intptr_t)device_get_ivars(devlist[i]); if ((error = device_delete_child(dev, devlist[i])) != 0) { free(devlist, M_TEMP); return (error); } sc->codecs[cad].dev = NULL; } free(devlist, M_TEMP); hdac_lock(sc); hdac_reset(sc, 0); hdac_unlock(sc); taskqueue_drain(taskqueue_thread, &sc->unsolq_task); hdac_irq_free(sc); for (i = 0; i < sc->num_ss; i++) hdac_dma_free(sc, &sc->streams[i].bdl); free(sc->streams, M_HDAC); hdac_dma_free(sc, &sc->pos_dma); hdac_dma_free(sc, &sc->rirb_dma); hdac_dma_free(sc, &sc->corb_dma); if (sc->chan_dmat != NULL) { bus_dma_tag_destroy(sc->chan_dmat); sc->chan_dmat = NULL; } hdac_mem_free(sc); snd_mtxfree(sc->lock); return (0); } static bus_dma_tag_t hdac_get_dma_tag(device_t dev, device_t child) { struct hdac_softc *sc = device_get_softc(dev); return (sc->chan_dmat); } static int hdac_print_child(device_t dev, device_t child) { int retval; retval = bus_print_child_header(dev, child); retval += printf(" at cad %d", (int)(intptr_t)device_get_ivars(child)); retval += bus_print_child_footer(dev, child); return (retval); } static int hdac_child_location_str(device_t dev, device_t child, char *buf, size_t buflen) { snprintf(buf, buflen, "cad=%d", (int)(intptr_t)device_get_ivars(child)); return (0); } static int hdac_child_pnpinfo_str_method(device_t dev, device_t child, char *buf, size_t buflen) { struct hdac_softc *sc = device_get_softc(dev); nid_t cad = (uintptr_t)device_get_ivars(child); snprintf(buf, buflen, "vendor=0x%04x device=0x%04x revision=0x%02x " "stepping=0x%02x", sc->codecs[cad].vendor_id, sc->codecs[cad].device_id, sc->codecs[cad].revision_id, sc->codecs[cad].stepping_id); return (0); } static int hdac_read_ivar(device_t dev, device_t child, int which, uintptr_t *result) { struct hdac_softc *sc = device_get_softc(dev); nid_t cad = (uintptr_t)device_get_ivars(child); switch (which) { case HDA_IVAR_CODEC_ID: *result = cad; break; case HDA_IVAR_VENDOR_ID: *result = sc->codecs[cad].vendor_id; break; case HDA_IVAR_DEVICE_ID: *result = sc->codecs[cad].device_id; break; case HDA_IVAR_REVISION_ID: *result = sc->codecs[cad].revision_id; break; case HDA_IVAR_STEPPING_ID: *result = sc->codecs[cad].stepping_id; break; case HDA_IVAR_SUBVENDOR_ID: *result = pci_get_subvendor(dev); break; case HDA_IVAR_SUBDEVICE_ID: *result = pci_get_subdevice(dev); break; case HDA_IVAR_DMA_NOCACHE: *result = (sc->flags & HDAC_F_DMA_NOCACHE) != 0; break; case HDA_IVAR_STRIPES_MASK: *result = (1 << (1 << sc->num_sdo)) - 1; break; default: return (ENOENT); } return (0); } static struct mtx * hdac_get_mtx(device_t dev, device_t child) { struct hdac_softc *sc = device_get_softc(dev); return (sc->lock); } static uint32_t hdac_codec_command(device_t dev, device_t child, uint32_t verb) { return (hdac_send_command(device_get_softc(dev), (intptr_t)device_get_ivars(child), verb)); } static int hdac_find_stream(struct hdac_softc *sc, int dir, int stream) { int i, ss; ss = -1; /* Allocate ISS/OSS first. */ if (dir == 0) { for (i = 0; i < sc->num_iss; i++) { if (sc->streams[i].stream == stream) { ss = i; break; } } } else { for (i = 0; i < sc->num_oss; i++) { if (sc->streams[i + sc->num_iss].stream == stream) { ss = i + sc->num_iss; break; } } } /* Fallback to BSS. */ if (ss == -1) { for (i = 0; i < sc->num_bss; i++) { if (sc->streams[i + sc->num_iss + sc->num_oss].stream == stream) { ss = i + sc->num_iss + sc->num_oss; break; } } } return (ss); } static int hdac_stream_alloc(device_t dev, device_t child, int dir, int format, int stripe, uint32_t **dmapos) { struct hdac_softc *sc = device_get_softc(dev); nid_t cad = (uintptr_t)device_get_ivars(child); int stream, ss, bw, maxbw, prevbw; /* Look for empty stream. */ ss = hdac_find_stream(sc, dir, 0); /* Return if found nothing. */ if (ss < 0) return (0); /* Check bus bandwidth. */ bw = hdac_bdata_rate(format, dir); if (dir == 1) { bw *= 1 << (sc->num_sdo - stripe); prevbw = sc->sdo_bw_used; maxbw = 48000 * 960 * (1 << sc->num_sdo); } else { prevbw = sc->codecs[cad].sdi_bw_used; maxbw = 48000 * 464; } HDA_BOOTHVERBOSE( device_printf(dev, "%dKbps of %dKbps bandwidth used%s\n", (bw + prevbw) / 1000, maxbw / 1000, bw + prevbw > maxbw ? " -- OVERFLOW!" : ""); ); if (bw + prevbw > maxbw) return (0); if (dir == 1) sc->sdo_bw_used += bw; else sc->codecs[cad].sdi_bw_used += bw; /* Allocate stream number */ if (ss >= sc->num_iss + sc->num_oss) stream = 15 - (ss - sc->num_iss - sc->num_oss); else if (ss >= sc->num_iss) stream = ss - sc->num_iss + 1; else stream = ss + 1; sc->streams[ss].dev = child; sc->streams[ss].dir = dir; sc->streams[ss].stream = stream; sc->streams[ss].bw = bw; sc->streams[ss].format = format; sc->streams[ss].stripe = stripe; if (dmapos != NULL) { if (sc->pos_dma.dma_vaddr != NULL) *dmapos = (uint32_t *)(sc->pos_dma.dma_vaddr + ss * 8); else *dmapos = NULL; } return (stream); } static void hdac_stream_free(device_t dev, device_t child, int dir, int stream) { struct hdac_softc *sc = device_get_softc(dev); nid_t cad = (uintptr_t)device_get_ivars(child); int ss; ss = hdac_find_stream(sc, dir, stream); KASSERT(ss >= 0, ("Free for not allocated stream (%d/%d)\n", dir, stream)); if (dir == 1) sc->sdo_bw_used -= sc->streams[ss].bw; else sc->codecs[cad].sdi_bw_used -= sc->streams[ss].bw; sc->streams[ss].stream = 0; sc->streams[ss].dev = NULL; } static int hdac_stream_start(device_t dev, device_t child, int dir, int stream, bus_addr_t buf, int blksz, int blkcnt) { struct hdac_softc *sc = device_get_softc(dev); struct hdac_bdle *bdle; uint64_t addr; int i, ss, off; uint32_t ctl; ss = hdac_find_stream(sc, dir, stream); KASSERT(ss >= 0, ("Start for not allocated stream (%d/%d)\n", dir, stream)); addr = (uint64_t)buf; bdle = (struct hdac_bdle *)sc->streams[ss].bdl.dma_vaddr; for (i = 0; i < blkcnt; i++, bdle++) { bdle->addrl = htole32((uint32_t)addr); bdle->addrh = htole32((uint32_t)(addr >> 32)); bdle->len = htole32(blksz); bdle->ioc = htole32(1); addr += blksz; } bus_dmamap_sync(sc->streams[ss].bdl.dma_tag, sc->streams[ss].bdl.dma_map, BUS_DMASYNC_PREWRITE); off = ss << 5; HDAC_WRITE_4(&sc->mem, off + HDAC_SDCBL, blksz * blkcnt); HDAC_WRITE_2(&sc->mem, off + HDAC_SDLVI, blkcnt - 1); addr = sc->streams[ss].bdl.dma_paddr; HDAC_WRITE_4(&sc->mem, off + HDAC_SDBDPL, (uint32_t)addr); HDAC_WRITE_4(&sc->mem, off + HDAC_SDBDPU, (uint32_t)(addr >> 32)); ctl = HDAC_READ_1(&sc->mem, off + HDAC_SDCTL2); if (dir) ctl |= HDAC_SDCTL2_DIR; else ctl &= ~HDAC_SDCTL2_DIR; ctl &= ~HDAC_SDCTL2_STRM_MASK; ctl |= stream << HDAC_SDCTL2_STRM_SHIFT; ctl &= ~HDAC_SDCTL2_STRIPE_MASK; ctl |= sc->streams[ss].stripe << HDAC_SDCTL2_STRIPE_SHIFT; HDAC_WRITE_1(&sc->mem, off + HDAC_SDCTL2, ctl); HDAC_WRITE_2(&sc->mem, off + HDAC_SDFMT, sc->streams[ss].format); ctl = HDAC_READ_4(&sc->mem, HDAC_INTCTL); ctl |= 1 << ss; HDAC_WRITE_4(&sc->mem, HDAC_INTCTL, ctl); HDAC_WRITE_1(&sc->mem, off + HDAC_SDSTS, HDAC_SDSTS_DESE | HDAC_SDSTS_FIFOE | HDAC_SDSTS_BCIS); ctl = HDAC_READ_1(&sc->mem, off + HDAC_SDCTL0); ctl |= HDAC_SDCTL_IOCE | HDAC_SDCTL_FEIE | HDAC_SDCTL_DEIE | HDAC_SDCTL_RUN; HDAC_WRITE_1(&sc->mem, off + HDAC_SDCTL0, ctl); sc->streams[ss].blksz = blksz; sc->streams[ss].running = 1; hdac_poll_reinit(sc); return (0); } static void hdac_stream_stop(device_t dev, device_t child, int dir, int stream) { struct hdac_softc *sc = device_get_softc(dev); int ss, off; uint32_t ctl; ss = hdac_find_stream(sc, dir, stream); KASSERT(ss >= 0, ("Stop for not allocated stream (%d/%d)\n", dir, stream)); bus_dmamap_sync(sc->streams[ss].bdl.dma_tag, sc->streams[ss].bdl.dma_map, BUS_DMASYNC_POSTWRITE); off = ss << 5; ctl = HDAC_READ_1(&sc->mem, off + HDAC_SDCTL0); ctl &= ~(HDAC_SDCTL_IOCE | HDAC_SDCTL_FEIE | HDAC_SDCTL_DEIE | HDAC_SDCTL_RUN); HDAC_WRITE_1(&sc->mem, off + HDAC_SDCTL0, ctl); ctl = HDAC_READ_4(&sc->mem, HDAC_INTCTL); ctl &= ~(1 << ss); HDAC_WRITE_4(&sc->mem, HDAC_INTCTL, ctl); sc->streams[ss].running = 0; hdac_poll_reinit(sc); } static void hdac_stream_reset(device_t dev, device_t child, int dir, int stream) { struct hdac_softc *sc = device_get_softc(dev); int timeout = 1000; int to = timeout; int ss, off; uint32_t ctl; ss = hdac_find_stream(sc, dir, stream); KASSERT(ss >= 0, ("Reset for not allocated stream (%d/%d)\n", dir, stream)); off = ss << 5; ctl = HDAC_READ_1(&sc->mem, off + HDAC_SDCTL0); ctl |= HDAC_SDCTL_SRST; HDAC_WRITE_1(&sc->mem, off + HDAC_SDCTL0, ctl); do { ctl = HDAC_READ_1(&sc->mem, off + HDAC_SDCTL0); if (ctl & HDAC_SDCTL_SRST) break; DELAY(10); } while (--to); if (!(ctl & HDAC_SDCTL_SRST)) device_printf(dev, "Reset setting timeout\n"); ctl &= ~HDAC_SDCTL_SRST; HDAC_WRITE_1(&sc->mem, off + HDAC_SDCTL0, ctl); to = timeout; do { ctl = HDAC_READ_1(&sc->mem, off + HDAC_SDCTL0); if (!(ctl & HDAC_SDCTL_SRST)) break; DELAY(10); } while (--to); if (ctl & HDAC_SDCTL_SRST) device_printf(dev, "Reset timeout!\n"); } static uint32_t hdac_stream_getptr(device_t dev, device_t child, int dir, int stream) { struct hdac_softc *sc = device_get_softc(dev); int ss, off; ss = hdac_find_stream(sc, dir, stream); KASSERT(ss >= 0, ("Reset for not allocated stream (%d/%d)\n", dir, stream)); off = ss << 5; return (HDAC_READ_4(&sc->mem, off + HDAC_SDLPIB)); } static int hdac_unsol_alloc(device_t dev, device_t child, int tag) { struct hdac_softc *sc = device_get_softc(dev); sc->unsol_registered++; hdac_poll_reinit(sc); return (tag); } static void hdac_unsol_free(device_t dev, device_t child, int tag) { struct hdac_softc *sc = device_get_softc(dev); sc->unsol_registered--; hdac_poll_reinit(sc); } static device_method_t hdac_methods[] = { /* device interface */ DEVMETHOD(device_probe, hdac_probe), DEVMETHOD(device_attach, hdac_attach), DEVMETHOD(device_detach, hdac_detach), DEVMETHOD(device_suspend, hdac_suspend), DEVMETHOD(device_resume, hdac_resume), /* Bus interface */ DEVMETHOD(bus_get_dma_tag, hdac_get_dma_tag), DEVMETHOD(bus_print_child, hdac_print_child), DEVMETHOD(bus_child_location_str, hdac_child_location_str), DEVMETHOD(bus_child_pnpinfo_str, hdac_child_pnpinfo_str_method), DEVMETHOD(bus_read_ivar, hdac_read_ivar), DEVMETHOD(hdac_get_mtx, hdac_get_mtx), DEVMETHOD(hdac_codec_command, hdac_codec_command), DEVMETHOD(hdac_stream_alloc, hdac_stream_alloc), DEVMETHOD(hdac_stream_free, hdac_stream_free), DEVMETHOD(hdac_stream_start, hdac_stream_start), DEVMETHOD(hdac_stream_stop, hdac_stream_stop), DEVMETHOD(hdac_stream_reset, hdac_stream_reset), DEVMETHOD(hdac_stream_getptr, hdac_stream_getptr), DEVMETHOD(hdac_unsol_alloc, hdac_unsol_alloc), DEVMETHOD(hdac_unsol_free, hdac_unsol_free), DEVMETHOD_END }; static driver_t hdac_driver = { "hdac", hdac_methods, sizeof(struct hdac_softc), }; static devclass_t hdac_devclass; DRIVER_MODULE(snd_hda, pci, hdac_driver, hdac_devclass, NULL, NULL);