/* * $Id: cx88-alsa.c,v 1.5 2005/08/10 17:01:28 mchehab Exp $ * * Support for audio capture * PCI function #1 of the cx2388x. * * (c) 2005 Mauro Carvalho Chehab * Based on a dummy cx88 module by Gerd Knorr * Based on bt87x.c by Clemens Ladisch * Based on dummy.c by Jaroslav Kysela * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ #include #include #include #include #include #include #include #include #include #include #include #include "compat.h" #include "cx88.h" /**************************************************************************** Data type declarations - Can be moded to a header file later ****************************************************************************/ #if 1 #define ANALOG_CLOCK 1792000 #define CLOCK_DIV_MIN 4 #define CLOCK_DIV_MAX 15 #define MAX_PCM_DEVICES 4 #define MAX_PCM_SUBSTREAMS 16 #endif enum { DEVICE_DIGITAL, DEVICE_ANALOG }; /* These can be replaced after done */ #define MIXER_ADDR_LAST MAX_CX88_INPUT //#define SNDRV_CARDS CX88_MAXBOARDS struct cx88_audio_dev { struct cx88_core *core; struct cx88_buffer *buf; struct cx88_dmaqueue *q; /* pci i/o */ struct pci_dev *pci; unsigned char pci_rev,pci_lat; /* audio controls */ int dig_rate; /* Digital sampling rate */ snd_card_t *card; spinlock_t reg_lock; unsigned int dma_size; unsigned int period_size; int mixer_volume[MIXER_ADDR_LAST+1][2]; int capture_source[MIXER_ADDR_LAST+1][2]; long opened; snd_pcm_substream_t *substream; }; typedef struct cx88_audio_dev snd_cx88_card_t; /**************************************************************************** Module global static vars ****************************************************************************/ static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */ static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */ static int enable[SNDRV_CARDS] = {1, [1 ... (SNDRV_CARDS - 1)] = 0}; static int pcm_devs[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 1}; static int pcm_substreams[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 8}; static snd_cx88_card_t *snd_dummy_cards[SNDRV_CARDS] = SNDRV_DEFAULT_PTR; /**************************************************************************** Module macros ****************************************************************************/ MODULE_DESCRIPTION("ALSA driver module for cx2388x based TV cards"); MODULE_AUTHOR("Mauro Carvalho Chehab "); MODULE_LICENSE("GPL"); /**************************************************************************** Part 1: Basic Flow for Sound Devices ****************************************************************************/ /* * PCI ID Table */ struct pci_device_id cx88_audio_pci_tbl[] = { { .vendor = 0x14f1, .device = 0x8800, .subvendor = PCI_ANY_ID, .subdevice = PCI_ANY_ID, },{ .vendor = 0x14f1, .device = 0x8801, .subvendor = PCI_ANY_ID, .subdevice = PCI_ANY_ID, },{ .vendor = 0x14f1, .device = 0x8811, .subvendor = PCI_ANY_ID, .subdevice = PCI_ANY_ID, },{ /* --- end of list --- */ } }; MODULE_DEVICE_TABLE(pci, cx88_audio_pci_tbl); /* * Alsa Constructor - Component probe */ static int __devinit cx88_audio_initdev(struct pci_dev *pci_dev, const struct pci_device_id *pci_id) { snd_cx88_card_t *dev; struct cx88_core *core; int err; dev = kmalloc(sizeof(*dev),GFP_KERNEL); if (NULL == dev) return -ENOMEM; memset(dev,0,sizeof(*dev)); /* pci init */ dev->pci = pci_dev; if (pci_enable_device(pci_dev)) { err = -EIO; goto fail_free; } core = cx88_core_get(dev->pci); if (NULL == core) { err = -EINVAL; goto fail_free; } dev->core = core; /* print pci info */ pci_read_config_byte(pci_dev, PCI_CLASS_REVISION, &dev->pci_rev); pci_read_config_byte(pci_dev, PCI_LATENCY_TIMER, &dev->pci_lat); printk(KERN_INFO "%s/1: found at %s, rev: %d, irq: %d, " "latency: %d, mmio: 0x%lx\n", core->name, pci_name(pci_dev), dev->pci_rev, pci_dev->irq, dev->pci_lat,pci_resource_start(pci_dev,0)); pci_set_master(pci_dev); if (!pci_dma_supported(pci_dev,0xffffffff)) { printk("%s/1: Oops: no 32bit PCI DMA ???\n",core->name); err = -EIO; goto fail_core; } printk("%s/1: Alsa support for cx2388x boards\n", core->name); pci_set_drvdata(pci_dev,dev); return 0; fail_core: cx88_core_put(core,dev->pci); fail_free: kfree(dev); return err; } /* * ALSA destructor */ static void __devexit cx88_audio_finidev(struct pci_dev *pci_dev) { snd_cx88_card_t *dev = pci_get_drvdata(pci_dev); pci_disable_device(pci_dev); /* unregister stuff */ pci_set_drvdata(pci_dev, NULL); /* free memory */ cx88_core_put(dev->core,dev->pci); kfree(dev); } /* * PCI driver definition */ static struct pci_driver cx88_audio_pci_driver = { .name = "cx88_audio", .id_table = cx88_audio_pci_tbl, .probe = cx88_audio_initdev, .remove = cx88_audio_finidev, #if 0 .suspend = cx88_audio_suspend, .resume = cx88_audio_resume, #endif }; /* =====================> FIXME */ #if 0 static void snd_cx88_pci_error(bt87x_t *chip, unsigned int status) { u16 pci_status; pci_read_config_word(chip->pci, PCI_STATUS, &pci_status); pci_status &= PCI_STATUS_PARITY | PCI_STATUS_SIG_TARGET_ABORT | PCI_STATUS_REC_TARGET_ABORT | PCI_STATUS_REC_MASTER_ABORT | PCI_STATUS_SIG_SYSTEM_ERROR | PCI_STATUS_DETECTED_PARITY; pci_write_config_word(chip->pci, PCI_STATUS, pci_status); if (pci_status != PCI_STATUS_DETECTED_PARITY) snd_printk(KERN_ERR "Aieee - PCI error! status %#08x, PCI status %#04x\n", status & ERROR_INTERRUPTS, pci_status); else { snd_printk(KERN_ERR "Aieee - PCI parity error detected!\n"); /* error 'handling' similar to aic7xxx_pci.c: */ chip->pci_parity_errors++; if (chip->pci_parity_errors > 20) { snd_printk(KERN_ERR "Too many PCI parity errors observed.\n"); snd_printk(KERN_ERR "Some device on this bus is generating bad parity.\n"); snd_printk(KERN_ERR "This is an error *observed by*, not *generated by*, this card.\n"); snd_printk(KERN_ERR "PCI parity error checking has been disabled.\n"); chip->interrupt_mask &= ~(INT_PPERR | INT_RIPERR); snd_bt87x_writel(chip, REG_INT_MASK, chip->interrupt_mask); } } } #endif /**************************************************************************** ALSA PCM Interface ****************************************************************************/ /* * Digital hardware definition */ static snd_pcm_hardware_t snd_cx88_digital_hw = { .info = SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED | SNDRV_PCM_INFO_BLOCK_TRANSFER | SNDRV_PCM_INFO_MMAP_VALID, .formats = SNDRV_PCM_FMTBIT_S16_LE, .rates = 0, /* set at runtime */ .channels_min = 2, .channels_max = 2, .buffer_bytes_max = 255 * 4092, .period_bytes_min = 32, .period_bytes_max = 4092, .periods_min = 2, .periods_max = 255, }; /* * Analog hardware definition */ static snd_pcm_hardware_t snd_cx88_analog_hw = { .info = SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED | SNDRV_PCM_INFO_BLOCK_TRANSFER | SNDRV_PCM_INFO_MMAP_VALID, .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S8, .rates = SNDRV_PCM_RATE_KNOT, .rate_min = ANALOG_CLOCK / CLOCK_DIV_MAX, .rate_max = ANALOG_CLOCK / CLOCK_DIV_MIN, .channels_min = 1, .channels_max = 1, .buffer_bytes_max = 255 * 4092, .period_bytes_min = 32, .period_bytes_max = 4092, .periods_min = 2, .periods_max = 255, }; /* * Sets board to provide digital audio */ static int snd_cx88_set_digital_hw(snd_cx88_card_t *chip, snd_pcm_runtime_t *runtime) { static struct { int rate; unsigned int bit; } ratebits[] = { {8000, SNDRV_PCM_RATE_8000}, {11025, SNDRV_PCM_RATE_11025}, {16000, SNDRV_PCM_RATE_16000}, {22050, SNDRV_PCM_RATE_22050}, {32000, SNDRV_PCM_RATE_32000}, {44100, SNDRV_PCM_RATE_44100}, {48000, SNDRV_PCM_RATE_48000} }; int i; #if 0 chip->reg_control |= CTL_DA_IOM_DA; #endif runtime->hw = snd_cx88_digital_hw; runtime->hw.rates = SNDRV_PCM_RATE_KNOT; for (i = 0; i < ARRAY_SIZE(ratebits); ++i) if (chip->dig_rate == ratebits[i].rate) { runtime->hw.rates = ratebits[i].bit; break; } runtime->hw.rate_min = chip->dig_rate; runtime->hw.rate_max = chip->dig_rate; return 0; } /* * Sets board to provide analog audio */ static int snd_cx88_set_analog_hw(snd_cx88_card_t *core, snd_pcm_runtime_t *runtime) { static ratnum_t analog_clock = { .num = ANALOG_CLOCK, .den_min = CLOCK_DIV_MIN, .den_max = CLOCK_DIV_MAX, .den_step = 1 }; static snd_pcm_hw_constraint_ratnums_t constraint_rates = { .nrats = 1, .rats = &analog_clock }; #if 0 chip->reg_control &= ~CTL_DA_IOM_DA; #endif runtime->hw = snd_cx88_analog_hw; return snd_pcm_hw_constraint_ratnums(runtime, 0, SNDRV_PCM_HW_PARAM_RATE, &constraint_rates); } /* * audio open callback */ static int snd_cx88_pcm_open(snd_pcm_substream_t *substream) { snd_cx88_card_t *chip = snd_pcm_substream_chip(substream); snd_pcm_runtime_t *runtime = substream->runtime; int err; if (test_and_set_bit(0, &chip->opened)) return -EBUSY; if (substream->pcm->device == DEVICE_DIGITAL) err = snd_cx88_set_digital_hw(chip, runtime); else err = snd_cx88_set_analog_hw(chip, runtime); if (err < 0) goto _error; err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS); if (err < 0) goto _error; chip->substream = substream; return 0; _error: clear_bit(0, &chip->opened); smp_mb__after_clear_bit(); return err; } /* * audio close callback */ static int snd_cx88_close(snd_pcm_substream_t *substream) { snd_cx88_card_t *chip = snd_pcm_substream_chip(substream); chip->substream = NULL; clear_bit(0, &chip->opened); smp_mb__after_clear_bit(); return 0; } /* * hw_params callback */ static int snd_cx88_hw_params(snd_pcm_substream_t * substream, snd_pcm_hw_params_t * hw_params) { return snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params)); } /* * hw free callback */ static int snd_cx88_hw_free(snd_pcm_substream_t * substream) { return snd_pcm_lib_free_pages(substream); } /* * prepare callback */ static int snd_cx88_prepare(snd_pcm_substream_t *substream) { snd_cx88_card_t *chip = snd_pcm_substream_chip(substream); snd_pcm_runtime_t *runtime = substream->runtime; int decimation; spin_lock_irq(&chip->reg_lock); chip->dma_size = snd_pcm_lib_buffer_bytes(substream); chip->period_size = snd_pcm_lib_period_bytes(substream); #if 0 chip->reg_control &= ~(CTL_DA_SDR_MASK | CTL_DA_SBR); decimation = (ANALOG_CLOCK + runtime->rate / 4) / runtime->rate; chip->reg_control |= decimation << CTL_DA_SDR_SHIFT; if (runtime->format == SNDRV_PCM_FORMAT_S8) chip->reg_control |= CTL_DA_SBR; snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control); outl(ensoniq->ctrl, ES_REG(ensoniq, CONTROL)); outl(ES_MEM_PAGEO(ES_PAGE_DAC), ES_REG(ensoniq, MEM_PAGE)); outl(runtime->dma_addr, ES_REG(ensoniq, DAC1_FRAME)); outl((ensoniq->p1_dma_size >> 2) - 1, ES_REG(ensoniq, DAC1_SIZE)); ensoniq->sctrl &= ~(ES_P1_LOOP_SEL | ES_P1_PAUSE | ES_P1_SCT_RLD | ES_P1_MODEM); ensoniq->sctrl |= ES_P1_INT_EN | ES_P1_MODEO(mode); outl(ensoniq->sctrl, ES_REG(ensoniq, SERIAL)); outl((ensoniq->p1_period_size >> snd_ensoniq_sample_shift[mode]) - 1, ES_REG(ensoniq, DAC1_COUNT)); #endif spin_unlock_irq(&chip->reg_lock); return 0; } /* * BOARD Specific: Sets audio DMA * FIXME: move to cx88-core */ static int start_audio_dma(snd_cx88_card_t *dev) { struct cx88_core *core = dev->core; #if 0 /* setup fifo + format - out channel */ cx88_sram_channel_setup(core, &cx88_sram_channels[SRAM_CH26], dev->buf->bpl, dev->buf->risc.dma1); #endif /* FIXME reset counter */ cx_write(MO_VIDY_GPCNTRL,GP_COUNT_CONTROL_RESET); /* enable irqs */ cx_set(MO_PCI_INTMSK, core->pci_irqmask | 0x01); /* Enables corresponding bits at AUD_INT_STAT */ #if 1 cx_set(MO_AUD_INTMSK, (1<<21)||(1<<19)); #endif /* start dma */ cx_set(MO_DEV_CNTRL2, (1<<5)); /* Enables Risc Processor */ cx_set(MO_AUD_DMACNTRL, 0x11); /* audio downstream FIFO and RISC enable */ return 0; } /* * BOARD Specific: Resets audio DMA * FIXME: move to cx88-core */ static int stop_audio_dma(snd_cx88_card_t *dev) { struct cx88_core *core = dev->core; /* stop dma */ cx_clear(MO_AUD_DMACNTRL, 0x11); /* disable irqs */ cx_set(MO_PCI_INTMSK, core->pci_irqmask | 0x01); /* FIXME: Should only be cleared if video is also disabled * Can be a counter - when zero, clear intmask. */ #if 0 cx_clear(MO_PCI_INTMSK, 0x000001); #endif cx_set(MO_AUD_INTMSK, 0); return 0; } /* * trigger callback */ static int snd_cx88_card_trigger(snd_pcm_substream_t *substream, int cmd) { snd_cx88_card_t *chip = snd_pcm_substream_chip(substream); switch (cmd) { case SNDRV_PCM_TRIGGER_START: // return snd_cx88_start(chip); case SNDRV_PCM_TRIGGER_STOP: // return snd_cx88_stop(chip); default: return -EINVAL; } } /* * pointer callback */ static snd_pcm_uframes_t snd_cx88_pointer(snd_pcm_substream_t *substream) { snd_cx88_card_t *chip = snd_pcm_substream_chip(substream); snd_pcm_runtime_t *runtime = substream->runtime; // return (snd_pcm_uframes_t)bytes_to_frames(runtime, chip->current_line * chip->line_bytes); } /* * operators */ static snd_pcm_ops_t snd_cx88_pcm_ops = { .open = snd_cx88_pcm_open, .close = snd_cx88_close, .ioctl = snd_pcm_lib_ioctl, .hw_params = snd_cx88_hw_params, .hw_free = snd_cx88_hw_free, .prepare = snd_cx88_prepare, .trigger = snd_cx88_card_trigger, .pointer = snd_cx88_pointer, .page = snd_pcm_sgbuf_ops_page, }; /* * create a PCM device */ static int __devinit snd_cx88_pcm(snd_cx88_card_t *chip, int device, char *name) { int err; #if 0 snd_cx88_pcm_t *pcm; err = snd_pcm_new(chip->card, name, device, 0, 1, &pcm); if (err < 0) return err; pcm->private_data = chip; strcpy(pcm->name, name); snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_cx88_pcm_ops); return snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG, snd_dma_pci_data(chip->pci), 128 * 1024, (255 * 4092 + 1023) & ~1023); #endif } /**************************************************************************** CONTROL INTERFACE ****************************************************************************/ static int snd_cx88_capture_volume_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *info) { info->type = SNDRV_CTL_ELEM_TYPE_INTEGER; info->count = 1; info->value.integer.min = 0; info->value.integer.max = 15; return 0; } static int snd_cx88_capture_volume_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *value) { snd_cx88_card_t *chip = snd_kcontrol_chip(kcontrol); #if 0 value->value.integer.value[0] = (chip->reg_control & CTL_A_GAIN_MASK) >> CTL_A_GAIN_SHIFT; #endif return 0; } static int snd_cx88_capture_volume_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *value) { snd_cx88_card_t *chip = snd_kcontrol_chip(kcontrol); u32 old_control; int changed; #if 0 spin_lock_irq(&chip->reg_lock); old_control = chip->reg_control; chip->reg_control = (chip->reg_control & ~CTL_A_GAIN_MASK) | (value->value.integer.value[0] << CTL_A_GAIN_SHIFT); snd_cx88_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control); changed = old_control != chip->reg_control; spin_unlock_irq(&chip->reg_lock); #endif return changed; } static snd_kcontrol_new_t snd_cx88_capture_volume = { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = "Capture Volume", .info = snd_cx88_capture_volume_info, .get = snd_cx88_capture_volume_get, .put = snd_cx88_capture_volume_put, }; static int snd_cx88_capture_boost_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *info) { info->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; info->count = 1; info->value.integer.min = 0; info->value.integer.max = 1; return 0; } static int snd_cx88_capture_boost_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *value) { snd_cx88_card_t *chip = snd_kcontrol_chip(kcontrol); #if 0 value->value.integer.value[0] = !! (chip->reg_control & CTL_A_G2X); #endif return 0; } static int snd_cx88_capture_boost_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *value) { snd_cx88_card_t *chip = snd_kcontrol_chip(kcontrol); u32 old_control; int changed; #if 0 spin_lock_irq(&chip->reg_lock); old_control = chip->reg_control; chip->reg_control = (chip->reg_control & ~CTL_A_G2X) | (value->value.integer.value[0] ? CTL_A_G2X : 0); snd_cx88_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control); changed = chip->reg_control != old_control; spin_unlock_irq(&chip->reg_lock); #endif return changed; } static snd_kcontrol_new_t snd_cx88_capture_boost = { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = "Capture Boost", .info = snd_cx88_capture_boost_info, .get = snd_cx88_capture_boost_get, .put = snd_cx88_capture_boost_put, }; static int snd_cx88_capture_source_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *info) { static char *texts[3] = {"TV Tuner", "FM", "Mic/Line"}; info->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; info->count = 1; info->value.enumerated.items = 3; if (info->value.enumerated.item > 2) info->value.enumerated.item = 2; strcpy(info->value.enumerated.name, texts[info->value.enumerated.item]); return 0; } static int snd_cx88_capture_source_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *value) { snd_cx88_card_t *chip = snd_kcontrol_chip(kcontrol); #if 0 value->value.enumerated.item[0] = (chip->reg_control & CTL_A_SEL_MASK) >> CTL_A_SEL_SHIFT; #endif return 0; } static int snd_cx88_capture_source_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *value) { snd_cx88_card_t *chip = snd_kcontrol_chip(kcontrol); u32 old_control; int changed; #if 0 spin_lock_irq(&chip->reg_lock); old_control = chip->reg_control; chip->reg_control = (chip->reg_control & ~CTL_A_SEL_MASK) | (value->value.enumerated.item[0] << CTL_A_SEL_SHIFT); snd_cx88_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control); changed = chip->reg_control != old_control; spin_unlock_irq(&chip->reg_lock); #endif return changed; } static snd_kcontrol_new_t snd_cx88_capture_source = { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = "Capture Source", .info = snd_cx88_capture_source_info, .get = snd_cx88_capture_source_get, .put = snd_cx88_capture_source_put, }; /**************************************************************************** LINUX MODULE INIT ****************************************************************************/ /* * module init */ static int cx88_audio_init(void) { printk(KERN_INFO "cx2388x alsa driver version %d.%d.%d loaded\n", (CX88_VERSION_CODE >> 16) & 0xff, (CX88_VERSION_CODE >> 8) & 0xff, CX88_VERSION_CODE & 0xff); #ifdef SNAPSHOT printk(KERN_INFO "cx2388x: snapshot date %04d-%02d-%02d\n", SNAPSHOT/10000, (SNAPSHOT/100)%100, SNAPSHOT%100); #endif return pci_module_init(&cx88_audio_pci_driver); } /* * module remove */ static void cx88_audio_fini(void) { pci_unregister_driver(&cx88_audio_pci_driver); } module_init(cx88_audio_init); module_exit(cx88_audio_fini); /* ----------------------------------------------------------- */ /* * Local variables: * c-basic-offset: 8 * End: */