/* $NetBSD: cs4281.c,v 1.27 2005/12/11 12:22:48 christos Exp $ */ /* * Copyright (c) 2000 Tatoku Ogaito. 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. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by Tatoku Ogaito * for the NetBSD Project. * 4. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 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. */ /* * Cirrus Logic CS4281 driver. * Data sheets can be found * http://www.cirrus.com/ftp/pub/4281.pdf * ftp://ftp.alsa-project.org/pub/manuals/cirrus/cs4281tm.pdf * * TODO: * 1: midi and FM support * 2: ... * */ #include __KERNEL_RCSID(0, "$NetBSD: cs4281.c,v 1.27 2005/12/11 12:22:48 christos Exp $"); #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #if defined(ENABLE_SECONDARY_CODEC) #define MAX_CHANNELS (4) #define MAX_FIFO_SIZE 32 /* 128/4channels */ #else #define MAX_CHANNELS (2) #define MAX_FIFO_SIZE 64 /* 128/2channels */ #endif /* IF functions for audio driver */ static int cs4281_match(struct device *, struct cfdata *, void *); static void cs4281_attach(struct device *, struct device *, void *); static int cs4281_intr(void *); static int cs4281_query_encoding(void *, struct audio_encoding *); static int cs4281_set_params(void *, int, int, audio_params_t *, audio_params_t *, stream_filter_list_t *, stream_filter_list_t *); static int cs4281_halt_output(void *); static int cs4281_halt_input(void *); static int cs4281_getdev(void *, struct audio_device *); static int cs4281_trigger_output(void *, void *, void *, int, void (*)(void *), void *, const audio_params_t *); static int cs4281_trigger_input(void *, void *, void *, int, void (*)(void *), void *, const audio_params_t *); static int cs4281_reset_codec(void *); /* Internal functions */ static uint8_t cs4281_sr2regval(int); static void cs4281_set_dac_rate(struct cs428x_softc *, int); static void cs4281_set_adc_rate(struct cs428x_softc *, int); static int cs4281_init(struct cs428x_softc *, int); /* Power Management */ static void cs4281_power(int, void *); static const struct audio_hw_if cs4281_hw_if = { NULL, /* open */ NULL, /* close */ NULL, cs4281_query_encoding, cs4281_set_params, cs428x_round_blocksize, NULL, NULL, NULL, NULL, NULL, cs4281_halt_output, cs4281_halt_input, NULL, cs4281_getdev, NULL, cs428x_mixer_set_port, cs428x_mixer_get_port, cs428x_query_devinfo, cs428x_malloc, cs428x_free, cs428x_round_buffersize, cs428x_mappage, cs428x_get_props, cs4281_trigger_output, cs4281_trigger_input, NULL, }; #if NMIDI > 0 && 0 /* Midi Interface */ static void cs4281_midi_close(void*); static void cs4281_midi_getinfo(void *, struct midi_info *); static int cs4281_midi_open(void *, int, void (*)(void *, int), void (*)(void *), void *); static int cs4281_midi_output(void *, int); static const struct midi_hw_if cs4281_midi_hw_if = { cs4281_midi_open, cs4281_midi_close, cs4281_midi_output, cs4281_midi_getinfo, 0, }; #endif CFATTACH_DECL(clct, sizeof(struct cs428x_softc), cs4281_match, cs4281_attach, NULL, NULL); static struct audio_device cs4281_device = { "CS4281", "", "cs4281" }; static int cs4281_match(struct device *parent, struct cfdata *match, void *aux) { struct pci_attach_args *pa; pa = (struct pci_attach_args *)aux; if (PCI_VENDOR(pa->pa_id) != PCI_VENDOR_CIRRUS) return 0; if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_CIRRUS_CS4281) return 1; return 0; } static void cs4281_attach(struct device *parent, struct device *self, void *aux) { struct cs428x_softc *sc; struct pci_attach_args *pa; pci_chipset_tag_t pc; char const *intrstr; pci_intr_handle_t ih; pcireg_t reg; char devinfo[256]; int pci_pwrmgmt_cap_reg, pci_pwrmgmt_csr_reg; sc = (struct cs428x_softc *)self; pa = (struct pci_attach_args *)aux; pc = pa->pa_pc; aprint_naive(": Audio controller\n"); pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo, sizeof(devinfo)); aprint_normal(": %s (rev. 0x%02x)\n", devinfo, PCI_REVISION(pa->pa_class)); /* Map I/O register */ if (pci_mapreg_map(pa, PCI_BA0, PCI_MAPREG_TYPE_MEM|PCI_MAPREG_MEM_TYPE_32BIT, 0, &sc->ba0t, &sc->ba0h, NULL, NULL)) { aprint_error("%s: can't map BA0 space\n", sc->sc_dev.dv_xname); return; } if (pci_mapreg_map(pa, PCI_BA1, PCI_MAPREG_TYPE_MEM|PCI_MAPREG_MEM_TYPE_32BIT, 0, &sc->ba1t, &sc->ba1h, NULL, NULL)) { aprint_error("%s: can't map BA1 space\n", sc->sc_dev.dv_xname); return; } sc->sc_dmatag = pa->pa_dmat; /* * Set Power State D0. * Without do this, 0xffffffff is read from all registers after * using Windows. * On my IBM Thinkpad X20, it is set to D3 after using Windows2000. */ if (pci_get_capability(pa->pa_pc, pa->pa_tag, PCI_CAP_PWRMGMT, &pci_pwrmgmt_cap_reg, 0)) { pci_pwrmgmt_csr_reg = pci_pwrmgmt_cap_reg + PCI_PMCSR; reg = pci_conf_read(pa->pa_pc, pa->pa_tag, pci_pwrmgmt_csr_reg); if ((reg & PCI_PMCSR_STATE_MASK) != PCI_PMCSR_STATE_D0) { pci_conf_write(pc, pa->pa_tag, pci_pwrmgmt_csr_reg, (reg & ~PCI_PMCSR_STATE_MASK) | PCI_PMCSR_STATE_D0); } } /* Enable the device (set bus master flag) */ reg = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG); pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, reg | PCI_COMMAND_MASTER_ENABLE); #if 0 /* LATENCY_TIMER setting */ temp1 = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_BHLC_REG); if (PCI_LATTIMER(temp1) < 32) { temp1 &= 0xffff00ff; temp1 |= 0x00002000; pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_BHLC_REG, temp1); } #endif /* Map and establish the interrupt. */ if (pci_intr_map(pa, &ih)) { aprint_error("%s: couldn't map interrupt\n", sc->sc_dev.dv_xname); return; } intrstr = pci_intr_string(pc, ih); sc->sc_ih = pci_intr_establish(pc, ih, IPL_AUDIO, cs4281_intr, sc); if (sc->sc_ih == NULL) { aprint_error("%s: couldn't establish interrupt", sc->sc_dev.dv_xname); if (intrstr != NULL) aprint_normal(" at %s", intrstr); aprint_normal("\n"); return; } aprint_normal("%s: interrupting at %s\n", sc->sc_dev.dv_xname, intrstr); /* * Sound System start-up */ if (cs4281_init(sc, 1) != 0) return; sc->type = TYPE_CS4281; sc->halt_input = cs4281_halt_input; sc->halt_output = cs4281_halt_output; sc->dma_size = CS4281_BUFFER_SIZE / MAX_CHANNELS; sc->dma_align = 0x10; sc->hw_blocksize = sc->dma_size / 2; /* AC 97 attachment */ sc->host_if.arg = sc; sc->host_if.attach = cs428x_attach_codec; sc->host_if.read = cs428x_read_codec; sc->host_if.write = cs428x_write_codec; sc->host_if.reset = cs4281_reset_codec; if (ac97_attach(&sc->host_if, self) != 0) { aprint_error("%s: ac97_attach failed\n", sc->sc_dev.dv_xname); return; } audio_attach_mi(&cs4281_hw_if, sc, &sc->sc_dev); #if NMIDI > 0 && 0 midi_attach_mi(&cs4281_midi_hw_if, sc, &sc->sc_dev); #endif sc->sc_suspend = PWR_RESUME; sc->sc_powerhook = powerhook_establish(cs4281_power, sc); } static int cs4281_intr(void *p) { struct cs428x_softc *sc; uint32_t intr, hdsr0, hdsr1; char *empty_dma; int handled; sc = p; handled = 0; hdsr0 = 0; hdsr1 = 0; /* grab interrupt register */ intr = BA0READ4(sc, CS4281_HISR); DPRINTF(("cs4281_intr:")); /* not for me */ if ((intr & HISR_INTENA) == 0) { /* clear the interrupt register */ BA0WRITE4(sc, CS4281_HICR, HICR_CHGM | HICR_IEV); return 0; } if (intr & HISR_DMA0) hdsr0 = BA0READ4(sc, CS4281_HDSR0); /* clear intr condition */ if (intr & HISR_DMA1) hdsr1 = BA0READ4(sc, CS4281_HDSR1); /* clear intr condition */ /* clear the interrupt register */ BA0WRITE4(sc, CS4281_HICR, HICR_CHGM | HICR_IEV); DPRINTF(("intr = 0x%08x, hdsr0 = 0x%08x hdsr1 = 0x%08x\n", intr, hdsr0, hdsr1)); /* Playback Interrupt */ if (intr & HISR_DMA0) { handled = 1; DPRINTF((" PB DMA 0x%x(%d)", (int)BA0READ4(sc, CS4281_DCA0), (int)BA0READ4(sc, CS4281_DCC0))); if (sc->sc_prun) { if ((sc->sc_pi%sc->sc_pcount) == 0) sc->sc_pintr(sc->sc_parg); } else { printf("unexpected play intr\n"); } /* copy buffer */ ++sc->sc_pi; empty_dma = sc->sc_pdma->addr; if (sc->sc_pi&1) empty_dma += sc->hw_blocksize; memcpy(empty_dma, sc->sc_pn, sc->hw_blocksize); sc->sc_pn += sc->hw_blocksize; if (sc->sc_pn >= sc->sc_pe) sc->sc_pn = sc->sc_ps; } if (intr & HISR_DMA1) { handled = 1; /* copy from DMA */ DPRINTF((" CP DMA 0x%x(%d)", (int)BA0READ4(sc, CS4281_DCA1), (int)BA0READ4(sc, CS4281_DCC1))); ++sc->sc_ri; empty_dma = sc->sc_rdma->addr; if ((sc->sc_ri & 1) == 0) empty_dma += sc->hw_blocksize; memcpy(sc->sc_rn, empty_dma, sc->hw_blocksize); sc->sc_rn += sc->hw_blocksize; if (sc->sc_rn >= sc->sc_re) sc->sc_rn = sc->sc_rs; if (sc->sc_rrun) { if ((sc->sc_ri % sc->sc_rcount) == 0) sc->sc_rintr(sc->sc_rarg); } else { printf("unexpected record intr\n"); } } DPRINTF(("\n")); return handled; } static int cs4281_query_encoding(void *addr, struct audio_encoding *fp) { switch (fp->index) { case 0: strcpy(fp->name, AudioEulinear); fp->encoding = AUDIO_ENCODING_ULINEAR; fp->precision = 8; fp->flags = 0; break; case 1: strcpy(fp->name, AudioEmulaw); fp->encoding = AUDIO_ENCODING_ULAW; fp->precision = 8; fp->flags = AUDIO_ENCODINGFLAG_EMULATED; break; case 2: strcpy(fp->name, AudioEalaw); fp->encoding = AUDIO_ENCODING_ALAW; fp->precision = 8; fp->flags = AUDIO_ENCODINGFLAG_EMULATED; break; case 3: strcpy(fp->name, AudioEslinear); fp->encoding = AUDIO_ENCODING_SLINEAR; fp->precision = 8; fp->flags = 0; break; case 4: strcpy(fp->name, AudioEslinear_le); fp->encoding = AUDIO_ENCODING_SLINEAR_LE; fp->precision = 16; fp->flags = 0; break; case 5: strcpy(fp->name, AudioEulinear_le); fp->encoding = AUDIO_ENCODING_ULINEAR_LE; fp->precision = 16; fp->flags = 0; break; case 6: strcpy(fp->name, AudioEslinear_be); fp->encoding = AUDIO_ENCODING_SLINEAR_BE; fp->precision = 16; fp->flags = 0; break; case 7: strcpy(fp->name, AudioEulinear_be); fp->encoding = AUDIO_ENCODING_ULINEAR_BE; fp->precision = 16; fp->flags = 0; break; default: return EINVAL; } return 0; } static int cs4281_set_params(void *addr, int setmode, int usemode, audio_params_t *play, audio_params_t *rec, stream_filter_list_t *pfil, stream_filter_list_t *rfil) { audio_params_t hw; struct cs428x_softc *sc; audio_params_t *p; stream_filter_list_t *fil; int mode; sc = addr; for (mode = AUMODE_RECORD; mode != -1; mode = mode == AUMODE_RECORD ? AUMODE_PLAY : -1) { if ((setmode & mode) == 0) continue; p = mode == AUMODE_PLAY ? play : rec; if (p == play) { DPRINTFN(5, ("play: sample=%u precision=%u channels=%u\n", p->sample_rate, p->precision, p->channels)); if (p->sample_rate < 6023 || p->sample_rate > 48000 || (p->precision != 8 && p->precision != 16) || (p->channels != 1 && p->channels != 2)) { return EINVAL; } } else { DPRINTFN(5, ("rec: sample=%u precision=%u channels=%u\n", p->sample_rate, p->precision, p->channels)); if (p->sample_rate < 6023 || p->sample_rate > 48000 || (p->precision != 8 && p->precision != 16) || (p->channels != 1 && p->channels != 2)) { return EINVAL; } } hw = *p; fil = mode == AUMODE_PLAY ? pfil : rfil; switch (p->encoding) { case AUDIO_ENCODING_SLINEAR_BE: break; case AUDIO_ENCODING_SLINEAR_LE: break; case AUDIO_ENCODING_ULINEAR_BE: break; case AUDIO_ENCODING_ULINEAR_LE: break; case AUDIO_ENCODING_ULAW: hw.encoding = AUDIO_ENCODING_SLINEAR_LE; fil->append(fil, mode == AUMODE_PLAY ? mulaw_to_linear8 : linear8_to_mulaw, &hw); break; case AUDIO_ENCODING_ALAW: hw.encoding = AUDIO_ENCODING_SLINEAR_LE; fil->append(fil, mode == AUMODE_PLAY ? alaw_to_linear8 : linear8_to_alaw, &hw); break; default: return EINVAL; } } /* set sample rate */ cs4281_set_dac_rate(sc, play->sample_rate); cs4281_set_adc_rate(sc, rec->sample_rate); return 0; } static int cs4281_halt_output(void *addr) { struct cs428x_softc *sc; sc = addr; BA0WRITE4(sc, CS4281_DCR0, BA0READ4(sc, CS4281_DCR0) | DCRn_MSK); sc->sc_prun = 0; return 0; } static int cs4281_halt_input(void *addr) { struct cs428x_softc *sc; sc = addr; BA0WRITE4(sc, CS4281_DCR1, BA0READ4(sc, CS4281_DCR1) | DCRn_MSK); sc->sc_rrun = 0; return 0; } static int cs4281_getdev(void *addr, struct audio_device *retp) { *retp = cs4281_device; return 0; } static int cs4281_trigger_output(void *addr, void *start, void *end, int blksize, void (*intr)(void *), void *arg, const audio_params_t *param) { struct cs428x_softc *sc; uint32_t fmt; struct cs428x_dma *p; int dma_count; sc = addr; fmt = 0; #ifdef DIAGNOSTIC if (sc->sc_prun) printf("cs4281_trigger_output: already running\n"); #endif sc->sc_prun = 1; DPRINTF(("cs4281_trigger_output: sc=%p start=%p end=%p " "blksize=%d intr=%p(%p)\n", addr, start, end, blksize, intr, arg)); sc->sc_pintr = intr; sc->sc_parg = arg; /* stop playback DMA */ BA0WRITE4(sc, CS4281_DCR0, BA0READ4(sc, CS4281_DCR0) | DCRn_MSK); DPRINTF(("param: precision=%d channels=%d encoding=%d\n", param->precision, param->channels, param->encoding)); for (p = sc->sc_dmas; p != NULL && BUFADDR(p) != start; p = p->next) continue; if (p == NULL) { printf("cs4281_trigger_output: bad addr %p\n", start); return EINVAL; } sc->sc_pcount = blksize / sc->hw_blocksize; sc->sc_ps = (char *)start; sc->sc_pe = (char *)end; sc->sc_pdma = p; sc->sc_pbuf = KERNADDR(p); sc->sc_pi = 0; sc->sc_pn = sc->sc_ps; if (blksize >= sc->dma_size) { sc->sc_pn = sc->sc_ps + sc->dma_size; memcpy(sc->sc_pbuf, start, sc->dma_size); ++sc->sc_pi; } else { sc->sc_pn = sc->sc_ps + sc->hw_blocksize; memcpy(sc->sc_pbuf, start, sc->hw_blocksize); } dma_count = sc->dma_size; if (param->precision != 8) dma_count /= 2; /* 16 bit */ if (param->channels > 1) dma_count /= 2; /* Stereo */ DPRINTF(("cs4281_trigger_output: DMAADDR(p)=0x%x count=%d\n", (int)DMAADDR(p), dma_count)); BA0WRITE4(sc, CS4281_DBA0, DMAADDR(p)); BA0WRITE4(sc, CS4281_DBC0, dma_count-1); /* set playback format */ fmt = BA0READ4(sc, CS4281_DMR0) & ~DMRn_FMTMSK; if (param->precision == 8) fmt |= DMRn_SIZE8; if (param->channels == 1) fmt |= DMRn_MONO; if (param->encoding == AUDIO_ENCODING_ULINEAR_BE || param->encoding == AUDIO_ENCODING_SLINEAR_BE) fmt |= DMRn_BEND; if (param->encoding == AUDIO_ENCODING_ULINEAR_BE || param->encoding == AUDIO_ENCODING_ULINEAR_LE) fmt |= DMRn_USIGN; BA0WRITE4(sc, CS4281_DMR0, fmt); /* set sample rate */ sc->sc_prate = param->sample_rate; cs4281_set_dac_rate(sc, param->sample_rate); /* start DMA */ BA0WRITE4(sc, CS4281_DCR0, BA0READ4(sc, CS4281_DCR0) & ~DCRn_MSK); /* Enable interrupts */ BA0WRITE4(sc, CS4281_HICR, HICR_IEV | HICR_CHGM); DPRINTF(("HICR =0x%08x(expected 0x00000001)\n", BA0READ4(sc, CS4281_HICR))); DPRINTF(("HIMR =0x%08x(expected 0x00f0fc3f)\n", BA0READ4(sc, CS4281_HIMR))); DPRINTF(("DMR0 =0x%08x(expected 0x2???0018)\n", BA0READ4(sc, CS4281_DMR0))); DPRINTF(("DCR0 =0x%08x(expected 0x00030000)\n", BA0READ4(sc, CS4281_DCR0))); DPRINTF(("FCR0 =0x%08x(expected 0x81000f00)\n", BA0READ4(sc, CS4281_FCR0))); DPRINTF(("DACSR=0x%08x(expected 1 for 44kHz 5 for 8kHz)\n", BA0READ4(sc, CS4281_DACSR))); DPRINTF(("SRCSA=0x%08x(expected 0x0b0a0100)\n", BA0READ4(sc, CS4281_SRCSA))); DPRINTF(("SSPM&SSPM_PSRCEN =0x%08x(expected 0x00000010)\n", BA0READ4(sc, CS4281_SSPM) & SSPM_PSRCEN)); return 0; } static int cs4281_trigger_input(void *addr, void *start, void *end, int blksize, void (*intr)(void *), void *arg, const audio_params_t *param) { struct cs428x_softc *sc; struct cs428x_dma *p; uint32_t fmt; int dma_count; sc = addr; fmt = 0; #ifdef DIAGNOSTIC if (sc->sc_rrun) printf("cs4281_trigger_input: already running\n"); #endif sc->sc_rrun = 1; DPRINTF(("cs4281_trigger_input: sc=%p start=%p end=%p " "blksize=%d intr=%p(%p)\n", addr, start, end, blksize, intr, arg)); sc->sc_rintr = intr; sc->sc_rarg = arg; /* stop recording DMA */ BA0WRITE4(sc, CS4281_DCR1, BA0READ4(sc, CS4281_DCR1) | DCRn_MSK); for (p = sc->sc_dmas; p && BUFADDR(p) != start; p = p->next) continue; if (!p) { printf("cs4281_trigger_input: bad addr %p\n", start); return EINVAL; } sc->sc_rcount = blksize / sc->hw_blocksize; sc->sc_rs = (char *)start; sc->sc_re = (char *)end; sc->sc_rdma = p; sc->sc_rbuf = KERNADDR(p); sc->sc_ri = 0; sc->sc_rn = sc->sc_rs; dma_count = sc->dma_size; if (param->precision != 8) dma_count /= 2; if (param->channels > 1) dma_count /= 2; DPRINTF(("cs4281_trigger_input: DMAADDR(p)=0x%x count=%d\n", (int)DMAADDR(p), dma_count)); BA0WRITE4(sc, CS4281_DBA1, DMAADDR(p)); BA0WRITE4(sc, CS4281_DBC1, dma_count-1); /* set recording format */ fmt = BA0READ4(sc, CS4281_DMR1) & ~DMRn_FMTMSK; if (param->precision == 8) fmt |= DMRn_SIZE8; if (param->channels == 1) fmt |= DMRn_MONO; if (param->encoding == AUDIO_ENCODING_ULINEAR_BE || param->encoding == AUDIO_ENCODING_SLINEAR_BE) fmt |= DMRn_BEND; if (param->encoding == AUDIO_ENCODING_ULINEAR_BE || param->encoding == AUDIO_ENCODING_ULINEAR_LE) fmt |= DMRn_USIGN; BA0WRITE4(sc, CS4281_DMR1, fmt); /* set sample rate */ sc->sc_rrate = param->sample_rate; cs4281_set_adc_rate(sc, param->sample_rate); /* Start DMA */ BA0WRITE4(sc, CS4281_DCR1, BA0READ4(sc, CS4281_DCR1) & ~DCRn_MSK); /* Enable interrupts */ BA0WRITE4(sc, CS4281_HICR, HICR_IEV | HICR_CHGM); DPRINTF(("HICR=0x%08x\n", BA0READ4(sc, CS4281_HICR))); DPRINTF(("HIMR=0x%08x\n", BA0READ4(sc, CS4281_HIMR))); DPRINTF(("DMR1=0x%08x\n", BA0READ4(sc, CS4281_DMR1))); DPRINTF(("DCR1=0x%08x\n", BA0READ4(sc, CS4281_DCR1))); return 0; } /* Power Hook */ static void cs4281_power(int why, void *v) { static uint32_t dba0 = 0, dbc0 = 0, dmr0 = 0, dcr0 = 0; static uint32_t dba1 = 0, dbc1 = 0, dmr1 = 0, dcr1 = 0; struct cs428x_softc *sc; sc = (struct cs428x_softc *)v; DPRINTF(("%s: cs4281_power why=%d\n", sc->sc_dev.dv_xname, why)); switch (why) { case PWR_SUSPEND: case PWR_STANDBY: sc->sc_suspend = why; /* save current playback status */ if (sc->sc_prun) { dcr0 = BA0READ4(sc, CS4281_DCR0); dmr0 = BA0READ4(sc, CS4281_DMR0); dbc0 = BA0READ4(sc, CS4281_DBC0); dba0 = BA0READ4(sc, CS4281_DBA0); } /* save current capture status */ if (sc->sc_rrun) { dcr1 = BA0READ4(sc, CS4281_DCR1); dmr1 = BA0READ4(sc, CS4281_DMR1); dbc1 = BA0READ4(sc, CS4281_DBC1); dba1 = BA0READ4(sc, CS4281_DBA1); } /* Stop DMA */ BA0WRITE4(sc, CS4281_DCR0, BA0READ4(sc, CS4281_DCR0) | DCRn_MSK); BA0WRITE4(sc, CS4281_DCR1, BA0READ4(sc, CS4281_DCR1) | DCRn_MSK); break; case PWR_RESUME: if (sc->sc_suspend == PWR_RESUME) { printf("cs4281_power: odd, resume without suspend.\n"); sc->sc_suspend = why; return; } sc->sc_suspend = why; cs4281_init(sc, 0); cs4281_reset_codec(sc); /* restore ac97 registers */ (*sc->codec_if->vtbl->restore_ports)(sc->codec_if); /* restore DMA related status */ if (sc->sc_prun) { cs4281_set_dac_rate(sc, sc->sc_prate); BA0WRITE4(sc, CS4281_DBA0, dba0); BA0WRITE4(sc, CS4281_DBC0, dbc0); BA0WRITE4(sc, CS4281_DMR0, dmr0); BA0WRITE4(sc, CS4281_DCR0, dcr0); } if (sc->sc_rrun) { cs4281_set_adc_rate(sc, sc->sc_rrate); BA0WRITE4(sc, CS4281_DBA1, dba1); BA0WRITE4(sc, CS4281_DBC1, dbc1); BA0WRITE4(sc, CS4281_DMR1, dmr1); BA0WRITE4(sc, CS4281_DCR1, dcr1); } /* enable intterupts */ if (sc->sc_prun || sc->sc_rrun) BA0WRITE4(sc, CS4281_HICR, HICR_IEV | HICR_CHGM); break; case PWR_SOFTSUSPEND: case PWR_SOFTSTANDBY: case PWR_SOFTRESUME: break; } } /* control AC97 codec */ static int cs4281_reset_codec(void *addr) { struct cs428x_softc *sc; uint16_t data; uint32_t dat32; int n; sc = addr; DPRINTFN(3, ("cs4281_reset_codec\n")); /* Reset codec */ BA0WRITE4(sc, CS428X_ACCTL, 0); delay(50); /* delay 50us */ BA0WRITE4(sc, CS4281_SPMC, 0); delay(100); /* delay 100us */ BA0WRITE4(sc, CS4281_SPMC, SPMC_RSTN); #if defined(ENABLE_SECONDARY_CODEC) BA0WRITE4(sc, CS4281_SPMC, SPMC_RSTN | SPCM_ASDIN2E); BA0WRITE4(sc, CS4281_SERMC, SERMC_TCID); #endif delay(50000); /* XXX: delay 50ms */ /* Enable ASYNC generation */ BA0WRITE4(sc, CS428X_ACCTL, ACCTL_ESYN); /* Wait for codec ready. Linux driver waits 50ms here */ n = 0; while ((BA0READ4(sc, CS428X_ACSTS) & ACSTS_CRDY) == 0) { delay(100); if (++n > 1000) { printf("reset_codec: AC97 codec ready timeout\n"); return ETIMEDOUT; } } #if defined(ENABLE_SECONDARY_CODEC) /* secondary codec ready*/ n = 0; while ((BA0READ4(sc, CS4281_ACSTS2) & ACSTS2_CRDY2) == 0) { delay(100); if (++n > 1000) return 0; } #endif /* Set the serial timing configuration */ /* XXX: undocumented but the Linux driver do this */ BA0WRITE4(sc, CS4281_SERMC, SERMC_PTCAC97); /* Wait for codec ready signal */ n = 0; do { delay(1000); if (++n > 1000) { printf("%s: timeout waiting for codec ready\n", sc->sc_dev.dv_xname); return ETIMEDOUT; } dat32 = BA0READ4(sc, CS428X_ACSTS) & ACSTS_CRDY; } while (dat32 == 0); /* Enable Valid Frame output on ASDOUT */ BA0WRITE4(sc, CS428X_ACCTL, ACCTL_ESYN | ACCTL_VFRM); /* Wait until codec calibration is finished. Codec register 26h */ n = 0; do { delay(1); if (++n > 1000) { printf("%s: timeout waiting for codec calibration\n", sc->sc_dev.dv_xname); return ETIMEDOUT; } cs428x_read_codec(sc, AC97_REG_POWER, &data); } while ((data & 0x0f) != 0x0f); /* Set the serial timing configuration again */ /* XXX: undocumented but the Linux driver do this */ BA0WRITE4(sc, CS4281_SERMC, SERMC_PTCAC97); /* Wait until we've sampled input slots 3 & 4 as valid */ n = 0; do { delay(1000); if (++n > 1000) { printf("%s: timeout waiting for sampled input slots as valid\n", sc->sc_dev.dv_xname); return ETIMEDOUT; } dat32 = BA0READ4(sc, CS428X_ACISV) & (ACISV_ISV3 | ACISV_ISV4) ; } while (dat32 != (ACISV_ISV3 | ACISV_ISV4)); /* Start digital data transfer of audio data to the codec */ BA0WRITE4(sc, CS428X_ACOSV, (ACOSV_SLV3 | ACOSV_SLV4)); return 0; } /* Internal functions */ /* convert sample rate to register value */ static uint8_t cs4281_sr2regval(int rate) { uint8_t retval; /* We don't have to change here. but anyway ... */ if (rate > 48000) rate = 48000; if (rate < 6023) rate = 6023; switch (rate) { case 8000: retval = 5; break; case 11025: retval = 4; break; case 16000: retval = 3; break; case 22050: retval = 2; break; case 44100: retval = 1; break; case 48000: retval = 0; break; default: retval = 1536000/rate; /* == 24576000/(rate*16) */ } return retval; } static void cs4281_set_adc_rate(struct cs428x_softc *sc, int rate) { BA0WRITE4(sc, CS4281_ADCSR, cs4281_sr2regval(rate)); } static void cs4281_set_dac_rate(struct cs428x_softc *sc, int rate) { BA0WRITE4(sc, CS4281_DACSR, cs4281_sr2regval(rate)); } static int cs4281_init(struct cs428x_softc *sc, int init) { int n; uint16_t data; uint32_t dat32; /* set "Configuration Write Protect" register to * 0x4281 to allow to write */ BA0WRITE4(sc, CS4281_CWPR, 0x4281); /* * Unset "Full Power-Down bit of Extended PCI Power Management * Control" register to release the reset state. */ dat32 = BA0READ4(sc, CS4281_EPPMC); if (dat32 & EPPMC_FPDN) { BA0WRITE4(sc, CS4281_EPPMC, dat32 & ~EPPMC_FPDN); } /* Start PLL out in known state */ BA0WRITE4(sc, CS4281_CLKCR1, 0); /* Start serial ports out in known state */ BA0WRITE4(sc, CS4281_SERMC, 0); /* Reset codec */ BA0WRITE4(sc, CS428X_ACCTL, 0); delay(50); /* delay 50us */ BA0WRITE4(sc, CS4281_SPMC, 0); delay(100); /* delay 100us */ BA0WRITE4(sc, CS4281_SPMC, SPMC_RSTN); #if defined(ENABLE_SECONDARY_CODEC) BA0WRITE4(sc, CS4281_SPMC, SPMC_RSTN | SPCM_ASDIN2E); BA0WRITE4(sc, CS4281_SERMC, SERMC_TCID); #endif delay(50000); /* XXX: delay 50ms */ /* Turn on Sound System clocks based on ABITCLK */ BA0WRITE4(sc, CS4281_CLKCR1, CLKCR1_DLLP); delay(50000); /* XXX: delay 50ms */ BA0WRITE4(sc, CS4281_CLKCR1, CLKCR1_SWCE | CLKCR1_DLLP); /* Set enables for sections that are needed in the SSPM registers */ BA0WRITE4(sc, CS4281_SSPM, SSPM_MIXEN | /* Mixer */ SSPM_CSRCEN | /* Capture SRC */ SSPM_PSRCEN | /* Playback SRC */ SSPM_JSEN | /* Joystick */ SSPM_ACLEN | /* AC LINK */ SSPM_FMEN /* FM */ ); /* Wait for clock stabilization */ n = 0; #if 1 /* what document says */ while ((BA0READ4(sc, CS4281_CLKCR1)& (CLKCR1_DLLRDY | CLKCR1_CLKON)) != (CLKCR1_DLLRDY | CLKCR1_CLKON)) { delay(100); if (++n > 1000) { printf("%s: timeout waiting for clock stabilization\n", sc->sc_dev.dv_xname); return -1; } } #else /* Cirrus driver for Linux does */ while (!(BA0READ4(sc, CS4281_CLKCR1) & CLKCR1_DLLRDY)) { delay(1000); if (++n > 1000) { printf("%s: timeout waiting for clock stabilization\n", sc->sc_dev.dv_xname); return -1; } } #endif /* Enable ASYNC generation */ BA0WRITE4(sc, CS428X_ACCTL, ACCTL_ESYN); /* Wait for codec ready. Linux driver waits 50ms here */ n = 0; while ((BA0READ4(sc, CS428X_ACSTS) & ACSTS_CRDY) == 0) { delay(100); if (++n > 1000) { printf("%s: timeout waiting for codec ready\n", sc->sc_dev.dv_xname); return -1; } } #if defined(ENABLE_SECONDARY_CODEC) /* secondary codec ready*/ n = 0; while ((BA0READ4(sc, CS4281_ACSTS2) & ACSTS2_CRDY2) == 0) { delay(100); if (++n > 1000) { printf("%s: timeout waiting for secondary codec ready\n", sc->sc_dev.dv_xname); return -1; } } #endif /* Set the serial timing configuration */ /* XXX: undocumented but the Linux driver do this */ BA0WRITE4(sc, CS4281_SERMC, SERMC_PTCAC97); /* Wait for codec ready signal */ n = 0; do { delay(1000); if (++n > 1000) { printf("%s: timeout waiting for codec ready\n", sc->sc_dev.dv_xname); return -1; } dat32 = BA0READ4(sc, CS428X_ACSTS) & ACSTS_CRDY; } while (dat32 == 0); /* Enable Valid Frame output on ASDOUT */ BA0WRITE4(sc, CS428X_ACCTL, ACCTL_ESYN | ACCTL_VFRM); /* Wait until codec calibration is finished. codec register 26h */ n = 0; do { delay(1); if (++n > 1000) { printf("%s: timeout waiting for codec calibration\n", sc->sc_dev.dv_xname); return -1; } cs428x_read_codec(sc, AC97_REG_POWER, &data); } while ((data & 0x0f) != 0x0f); /* Set the serial timing configuration again */ /* XXX: undocumented but the Linux driver do this */ BA0WRITE4(sc, CS4281_SERMC, SERMC_PTCAC97); /* Wait until we've sampled input slots 3 & 4 as valid */ n = 0; do { delay(1000); if (++n > 1000) { printf("%s: timeout waiting for sampled input slots as valid\n", sc->sc_dev.dv_xname); return -1; } dat32 = BA0READ4(sc, CS428X_ACISV) & (ACISV_ISV3 | ACISV_ISV4); } while (dat32 != (ACISV_ISV3 | ACISV_ISV4)); /* Start digital data transfer of audio data to the codec */ BA0WRITE4(sc, CS428X_ACOSV, (ACOSV_SLV3 | ACOSV_SLV4)); cs428x_write_codec(sc, AC97_REG_HEADPHONE_VOLUME, 0); cs428x_write_codec(sc, AC97_REG_MASTER_VOLUME, 0); /* Power on the DAC */ cs428x_read_codec(sc, AC97_REG_POWER, &data); cs428x_write_codec(sc, AC97_REG_POWER, data & 0xfdff); /* Wait until we sample a DAC ready state. * Not documented, but Linux driver does. */ for (n = 0; n < 32; ++n) { delay(1000); cs428x_read_codec(sc, AC97_REG_POWER, &data); if (data & 0x02) break; } /* Power on the ADC */ cs428x_read_codec(sc, AC97_REG_POWER, &data); cs428x_write_codec(sc, AC97_REG_POWER, data & 0xfeff); /* Wait until we sample ADC ready state. * Not documented, but Linux driver does. */ for (n = 0; n < 32; ++n) { delay(1000); cs428x_read_codec(sc, AC97_REG_POWER, &data); if (data & 0x01) break; } #if 0 /* Initialize AC-Link features */ /* variable sample-rate support */ mem = BA0READ4(sc, CS4281_SERMC); mem |= (SERMC_ODSEN1 | SERMC_ODSEN2); BA0WRITE4(sc, CS4281_SERMC, mem); /* XXX: more... */ /* Initialize SSCR register features */ /* XXX: hardware volume setting */ BA0WRITE4(sc, CS4281_SSCR, ~SSCR_HVC); /* disable HW volume setting */ #endif /* disable Sound Blaster Pro emulation */ /* XXX: * Cannot set since the documents does not describe which bit is * correspond to SSCR_SB. Since the reset value of SSCR is 0, * we can ignore it.*/ #if 0 BA0WRITE4(sc, CS4281_SSCR, SSCR_SB); #endif /* map AC97 PCM playback to DMA Channel 0 */ /* Reset FEN bit to setup first */ BA0WRITE4(sc, CS4281_FCR0, (BA0READ4(sc, CS4281_FCR0) & ~FCRn_FEN)); /* *| RS[4:0]/| | *| LS[4:0] | AC97 | Slot Function *|---------+--------+-------------------- *| 0 | 3 | Left PCM Playback *| 1 | 4 | Right PCM Playback *| 2 | 5 | Phone Line 1 DAC *| 3 | 6 | Center PCM Playback *.... * quoted from Table 29(p109) */ dat32 = 0x01 << 24 | /* RS[4:0] = 1 see above */ 0x00 << 16 | /* LS[4:0] = 0 see above */ 0x0f << 8 | /* SZ[6:0] = 15 size of buffer */ 0x00 << 0 ; /* OF[6:0] = 0 offset */ BA0WRITE4(sc, CS4281_FCR0, dat32); BA0WRITE4(sc, CS4281_FCR0, dat32 | FCRn_FEN); /* map AC97 PCM record to DMA Channel 1 */ /* Reset FEN bit to setup first */ BA0WRITE4(sc, CS4281_FCR1, (BA0READ4(sc, CS4281_FCR1) & ~FCRn_FEN)); /* *| RS[4:0]/| *| LS[4:0] | AC97 | Slot Function *|---------+------+------------------- *| 10 | 3 | Left PCM Record *| 11 | 4 | Right PCM Record *| 12 | 5 | Phone Line 1 ADC *| 13 | 6 | Mic ADC *.... * quoted from Table 30(p109) */ dat32 = 0x0b << 24 | /* RS[4:0] = 11 See above */ 0x0a << 16 | /* LS[4:0] = 10 See above */ 0x0f << 8 | /* SZ[6:0] = 15 Size of buffer */ 0x10 << 0 ; /* OF[6:0] = 16 offset */ /* XXX: I cannot understand why FCRn_PSH is needed here. */ BA0WRITE4(sc, CS4281_FCR1, dat32 | FCRn_PSH); BA0WRITE4(sc, CS4281_FCR1, dat32 | FCRn_FEN); #if 0 /* Disable DMA Channel 2, 3 */ BA0WRITE4(sc, CS4281_FCR2, (BA0READ4(sc, CS4281_FCR2) & ~FCRn_FEN)); BA0WRITE4(sc, CS4281_FCR3, (BA0READ4(sc, CS4281_FCR3) & ~FCRn_FEN)); #endif /* Set the SRC Slot Assignment accordingly */ /*| PLSS[4:0]/ *| PRSS[4:0] | AC97 | Slot Function *|-----------+------+---------------- *| 0 | 3 | Left PCM Playback *| 1 | 4 | Right PCM Playback *| 2 | 5 | phone line 1 DAC *| 3 | 6 | Center PCM Playback *| 4 | 7 | Left Surround PCM Playback *| 5 | 8 | Right Surround PCM Playback *...... * *| CLSS[4:0]/ *| CRSS[4:0] | AC97 | Codec |Slot Function *|-----------+------+-------+----------------- *| 10 | 3 |Primary| Left PCM Record *| 11 | 4 |Primary| Right PCM Record *| 12 | 5 |Primary| Phone Line 1 ADC *| 13 | 6 |Primary| Mic ADC *|..... *| 20 | 3 | Sec. | Left PCM Record *| 21 | 4 | Sec. | Right PCM Record *| 22 | 5 | Sec. | Phone Line 1 ADC *| 23 | 6 | Sec. | Mic ADC */ dat32 = 0x0b << 24 | /* CRSS[4:0] Right PCM Record(primary) */ 0x0a << 16 | /* CLSS[4:0] Left PCM Record(primary) */ 0x01 << 8 | /* PRSS[4:0] Right PCM Playback */ 0x00 << 0; /* PLSS[4:0] Left PCM Playback */ BA0WRITE4(sc, CS4281_SRCSA, dat32); /* Set interrupt to occurred at Half and Full terminal * count interrupt enable for DMA channel 0 and 1. * To keep DMA stop, set MSK. */ dat32 = DCRn_HTCIE | DCRn_TCIE | DCRn_MSK; BA0WRITE4(sc, CS4281_DCR0, dat32); BA0WRITE4(sc, CS4281_DCR1, dat32); /* Set Auto-Initialize Contorl enable */ BA0WRITE4(sc, CS4281_DMR0, DMRn_DMA | DMRn_AUTO | DMRn_TR_READ); BA0WRITE4(sc, CS4281_DMR1, DMRn_DMA | DMRn_AUTO | DMRn_TR_WRITE); /* Clear DMA Mask in HIMR */ dat32 = ~HIMR_DMAIM & ~HIMR_D1IM & ~HIMR_D0IM; BA0WRITE4(sc, CS4281_HIMR, BA0READ4(sc, CS4281_HIMR) & dat32); /* set current status */ if (init != 0) { sc->sc_prun = 0; sc->sc_rrun = 0; } /* setup playback volume */ BA0WRITE4(sc, CS4281_PPRVC, 7); BA0WRITE4(sc, CS4281_PPLVC, 7); return 0; }