/* * $Id: cx88-alsa.c,v 1.19 2005/12/24 03:21:00 rmcc 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" #include "cx88-reg.h" #define dprintk(level,fmt, arg...) if (debug >= level) \ printk(KERN_INFO "%s/1: " fmt, chip->core->name , ## arg) #define dprintk_core(level,fmt, arg...) if (debug >= level) \ printk(KERN_DEBUG "%s/1: " fmt, chip->core->name , ## arg) /**************************************************************************** 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 struct cx8801_fh { struct cx88_audio_dev *dev; struct videobuf_queue vb_q; int size; }; struct cx88_audio_dev { struct cx88_core *core; struct cx88_dmaqueue q; struct cx8801_fh *fh; /* pci i/o */ struct pci_dev *pci; unsigned char pci_rev,pci_lat; /* audio controls */ int irq; 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 int bufsize; long int read_offset; u32 __iomem *mmio; long opened; snd_pcm_substream_t *substream; struct videobuf_dmabuf dma; }; typedef struct cx88_audio_dev snd_cx88_card_t; typedef struct snd_card_cx88_pcm { struct cx88_dev *dev; spinlock_t lock; snd_pcm_substream_t *substream; } snd_card_cx88_pcm_t; #if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,8) #define chip_t snd_cx88_card_t #endif /**************************************************************************** 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)] = 1}; #if 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; #endif static snd_card_t *snd_cx88_cards[SNDRV_CARDS]; #if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,10) static unsigned int dummy; module_param_array(enable, bool, dummy, 0444); #else module_param_array(enable, bool, NULL, 0444); #endif MODULE_PARM_DESC(enable, "Enable cx88x soundcard. default enabled."); /**************************************************************************** Module macros ****************************************************************************/ MODULE_DESCRIPTION("ALSA driver module for cx2388x based TV cards"); MODULE_AUTHOR("Mauro Carvalho Chehab "); MODULE_LICENSE("GPL"); MODULE_SUPPORTED_DEVICE("{{Conexant,23881}," "{{Conexant,23882}," "{{Conexant,23883}"); static unsigned int debug = 0; module_param(debug,int,0644); MODULE_PARM_DESC(debug,"enable debug messages"); /**************************************************************************** Module specific funtions ****************************************************************************/ /* * BOARD Specific: Sets audio DMA */ int _cx88_start_audio_dma(snd_cx88_card_t *chip, struct cx88_dmaqueue *q, struct cx88_buffer *buf) { struct cx88_core *core=chip->core; dprintk(1, "Starting audio DMA\n"); /* setup fifo + format - out channel */ cx88_sram_channel_setup(chip->core, &cx88_sram_channels[SRAM_CH25], buf->bpl, buf->risc.dma); /* sets bpl size */ cx_write(MO_AUDD_LNGTH, buf->bpl); /* reset counter */ cx_write(MO_AUDD_GPCNTRL,GP_COUNT_CONTROL_RESET); dprintk(1,"Enabling IRQ\n"); /* enable irqs */ cx_set(MO_PCI_INTMSK, chip->core->pci_irqmask | 0x02); /* Enables corresponding bits at AUD_INT_STAT */ #if 1 /*keep*/ /* Maybe necessary to enable other errors */ cx_set(MO_AUD_INTMSK, (1<<21)||(1<<19)||(1<<16)||1); #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 */ q->count = 1; return 0; } /* * BOARD Specific: Resets audio DMA */ int _cx88_stop_audio_dma(snd_cx88_card_t *chip) { struct cx88_core *core=chip->core; dprintk(1, "Stopping audio DMA\n"); /* stop dma */ cx_clear(MO_AUD_DMACNTRL, 0x11); /* disable irqs */ cx_clear(MO_PCI_INTMSK, 0x000002); cx_set(MO_AUD_INTMSK, 0); return 0; } #define MAX_IRQ_LOOP 10 /* * BOARD Specific: Threats timeouts */ static void cx8801_timeout(unsigned long data) { snd_cx88_card_t *chip = (snd_cx88_card_t *)data; dprintk(0, "cx88_alsa: %s\n",__FUNCTION__); if (debug) cx88_sram_channel_dump(chip->core, &cx88_sram_channels[SRAM_CH25]); _cx88_stop_audio_dma(chip); #if 0 do_cancel_buffers(dev,"timeout",1); #endif } /* * BOARD Specific: IRQ dma bits */ static char *cx88_aud_irqs[32] = { "dn_risci1", "up_risci1", "rds_dn_risc1", /* 0-2 */ NULL, /* reserved */ "dn_risci2", "up_risci2", "rds_dn_risc2", /* 4-6 */ NULL, /* reserved */ "dnf_of", "upf_uf", "rds_dnf_uf", /* 8-10 */ NULL, /* reserved */ "dn_sync", "up_sync", "rds_dn_sync", /* 12-14 */ NULL, /* reserved */ "opc_err", "par_err", "rip_err", /* 16-18 */ "pci_abort", "ber_irq", "mchg_irq" /* 19-21 */ }; /* * BOARD Specific: Threats IRQ audio specific calls */ static void cx8801_aud_irq(snd_cx88_card_t *chip) { struct cx88_core *core = chip->core; u32 status, mask; u32 count; status = cx_read(MO_AUD_INTSTAT); mask = cx_read(MO_AUD_INTMSK); if (0 == (status & mask)) return; cx_write(MO_AUD_INTSTAT, status); if (debug || (status & mask & ~0xff)) cx88_print_irqbits(core->name, "irq aud", cx88_aud_irqs, status, mask); /* risc op code error */ if (status & (1 << 16)) { printk(KERN_WARNING "%s/0: video risc op code error\n",core->name); cx_clear(MO_AUD_DMACNTRL, 0x11); #if 0 /* FIXME: anything else? */ cx_clear(VID_CAPTURE_CONTROL, 0x06); #endif cx88_sram_channel_dump(core, &cx88_sram_channels[SRAM_CH25]); } /* risc1 downstream */ if (status & 0x01) { spin_lock(&chip->reg_lock); count = cx_read(MO_AUDD_GPCNT); cx88_wakeup(core, &chip->q, count); spin_unlock(&chip->reg_lock); } /* FIXME: Any other status should deserve a special handling? */ } /* * BOARD Specific: Handles IRQ calls */ static irqreturn_t cx8801_irq(int irq, void *dev_id, struct pt_regs *regs) { snd_cx88_card_t *chip = dev_id; struct cx88_core *core = chip->core; u32 status; int loop, handled = 0; for (loop = 0; loop < MAX_IRQ_LOOP; loop++) { status = cx_read(MO_PCI_INTSTAT) & (core->pci_irqmask | 0x02); if (0 == status) goto out; dprintk( 3, "cx8801_irq\n" ); dprintk( 3, " loop: %d/%d\n", loop, MAX_IRQ_LOOP ); dprintk( 3, " status: %d\n", status ); handled = 1; cx_write(MO_PCI_INTSTAT, status); if (status & core->pci_irqmask) { dprintk( 3, " passing to core\n" ); cx88_core_irq(core,status); } if (status & 0x02) { dprintk( 1, " ALSA IRQ handling\n" ); cx8801_aud_irq(chip); } }; if (MAX_IRQ_LOOP == loop) { dprintk( 0, "clearing mask\n" ); dprintk(1,"%s/0: irq loop -- clearing mask\n", core->name); cx_write(MO_PCI_INTMSK,0); } out: return IRQ_RETVAL(handled); } /* =====================> 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 /**************************************************************************** Videobuf setup code ****************************************************************************/ static int buffer_setup(struct videobuf_queue *q, unsigned int *count, unsigned int *size) { struct cx8801_fh *fh = q->priv_data; struct cx88_audio_dev *chip = fh->dev; *size = fh->size; if (0 == *count) *count = 32; if (*count < 2) *count = 2; if (*count > 32) *count = 32; dprintk(2,"Count=%d, size=%d\n" ,*count,*size); return 0; } static int buffer_prepare(struct videobuf_queue *q, struct videobuf_buffer *vb, enum v4l2_field field) { struct cx8801_fh *fh = q->priv_data; struct cx88_audio_dev *chip = fh->dev; struct cx88_buffer *buf = container_of(vb,struct cx88_buffer,vb); int rc; unsigned int size=fh->size; if (0 != buf->vb.baddr && buf->vb.bsize < size) return -EINVAL; if (STATE_NEEDS_INIT == buf->vb.state) { buf->vb.width = size; buf->vb.height = 1; buf->vb.size = size; buf->vb.field = V4L2_FIELD_SEQ_TB; if (0 != (rc = videobuf_iolock(chip->pci,&buf->vb,NULL))) goto fail; cx88_risc_buffer(chip->pci, &buf->risc, buf->vb.dma.sglist, 0, buf->vb.width * buf->vb.height, buf->vb.width, 0, buf->vb.height); } buf->vb.state = STATE_PREPARED; dprintk_core(2,"[%p/%d] buffer_prepare - size: %d - dma=0x%08lx\n", buf, buf->vb.i, fh->size, (unsigned long)buf->risc.dma); return 0; fail: cx88_free_buffer(chip->pci,buf); return rc; } static void buffer_queue(struct videobuf_queue *vq, struct videobuf_buffer *vb) { struct cx88_buffer *buf = container_of(vb,struct cx88_buffer,vb); struct cx88_buffer *prev; struct cx8801_fh *fh = vq->priv_data; struct cx88_audio_dev *chip = fh->dev; struct cx88_dmaqueue *q = &chip->q; dprintk(2,"Buffer queue\n"); /* add jump to stopper */ buf->risc.jmp[0] = cpu_to_le32(RISC_JUMP | RISC_IRQ1 | RISC_CNT_INC); buf->risc.jmp[1] = cpu_to_le32(q->stopper.dma); if (!buf->bpl && chip->period_size) buf->bpl = chip->period_size; if (!list_empty(&q->queued)) { list_add_tail(&buf->vb.queue,&q->queued); buf->vb.state = STATE_QUEUED; dprintk(2,"[%p/%d] buffer_queue - append to queued\n", buf, buf->vb.i); } else if (list_empty(&q->active)) { list_add_tail(&buf->vb.queue,&q->active); _cx88_start_audio_dma(chip, q, buf); buf->vb.state = STATE_ACTIVE; buf->count = q->count++; mod_timer(&q->timeout, jiffies+BUFFER_TIMEOUT); dprintk(2,"[%p/%d] buffer_queue - first active\n", buf, buf->vb.i); } else { prev = list_entry(q->active.prev, struct cx88_buffer, vb.queue); if (prev->vb.width == buf->vb.width && prev->vb.height == buf->vb.height && prev->fmt == buf->fmt) { list_add_tail(&buf->vb.queue,&q->active); buf->vb.state = STATE_ACTIVE; buf->count = q->count++; prev->risc.jmp[1] = cpu_to_le32(buf->risc.dma); dprintk(2,"[%p/%d] buffer_queue - append to active\n", buf, buf->vb.i); } else { list_add_tail(&buf->vb.queue,&q->queued); buf->vb.state = STATE_QUEUED; dprintk(2,"[%p/%d] buffer_queue - first queued\n", buf, buf->vb.i); } } } static void buffer_release(struct videobuf_queue *q, struct videobuf_buffer *vb) { struct cx88_buffer *buf = container_of(vb,struct cx88_buffer,vb); struct cx8801_fh *fh = q->priv_data; cx88_free_buffer(fh->dev->pci,buf); } static struct videobuf_queue_ops audio_qops = { .buf_setup = buffer_setup, .buf_prepare = buffer_prepare, .buf_queue = buffer_queue, .buf_release = buffer_release, }; static int dsp_buffer_init(snd_cx88_card_t *chip) { int err = 0; struct cx8801_fh *fh; struct v4l2_requestbuffers req; int deb; BUG_ON(!chip->dma_size); /* allocate + initialize per filehandle data */ fh = kmalloc(sizeof(*fh),GFP_KERNEL); if (NULL == fh) return -ENOMEM; memset(fh,0,sizeof(*fh)); fh->dev = chip; fh->size = chip->dma_size; dprintk(1,"queue init\n"); videobuf_queue_init(&fh->vb_q, &audio_qops, chip->pci, &chip->reg_lock, V4L2_BUF_TYPE_VIDEO_CAPTURE, V4L2_FIELD_INTERLACED, sizeof(struct cx88_buffer), fh); chip->fh=fh; //dprintk(1,"dma init kernel\n"); //err = videobuf_dma_init_kernel(&chip->dma, PCI_DMA_FROMDEVICE, // (chip->dma_size + PAGE_SIZE) >> PAGE_SHIFT); dprintk(1,"queue read start (coming from %d)\n",err); deb = videobuf_read_start(&fh->vb_q); dprintk(1,"dma init (coming from %d)\n",deb); videobuf_dma_init(&chip->dma); if (0 != err) return err; memset(&req,0,sizeof(req)); req.type = fh->vb_q.type; req.count = 2; req.memory = V4L2_MEMORY_MMAP; dprintk(1,"request bufers\n"); videobuf_reqbufs(&fh->vb_q, &req); // dprintk(1,"prepare bufers\n"); // videobuf_qbuf(&fh->vb_q, &req); dprintk(1,"start stream\n"); err=videobuf_streamon(&fh->vb_q); return 0; } static int dsp_buffer_free(snd_cx88_card_t *chip) { BUG_ON(!chip->dma_size); videobuf_dma_free(&chip->dma); chip->dma_size = 0; return 0; } /**************************************************************************** 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 = SNDRV_PCM_RATE_48000, .rate_min = 48000, .rate_max = 48000, .channels_min = 2, .channels_max = 2, .buffer_bytes_max = (1024*256), .period_bytes_min = 64, .period_bytes_max = 256, .periods_min = 2, .periods_max = 1024, }; /* * audio pcm capture runtime free */ static void snd_card_cx88_runtime_free(snd_pcm_runtime_t *runtime) { snd_pcm_hardware_t *pcm = runtime->private_data; kfree(pcm); } /* * audio pcm capture 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; snd_card_cx88_pcm_t *pcm; int err; dprintk(1,"Opening PCM!\n"); if (test_and_set_bit(0, &chip->opened)) return -EBUSY; err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS); if (err < 0) goto _error; chip->substream = substream; pcm = kzalloc(sizeof(*pcm), GFP_KERNEL); if (pcm == NULL) { err=-ENOMEM; goto _error; } spin_lock_init(&pcm->lock); pcm->substream = substream; runtime->private_data = pcm; runtime->private_free = snd_card_cx88_runtime_free; runtime->hw = snd_cx88_digital_hw; dprintk(1,"Opened PCM!\n"); return 0; _error: dprintk(1,"Error opening PCM!\n"); 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) { int err; snd_cx88_card_t *chip = snd_pcm_substream_chip(substream); printk("ALSA HW_params\n"); chip->period_size = params_period_bytes(hw_params); chip->dma_size = chip->period_size * params_periods(hw_params); dprintk(1,"Setting buffer\n"); dsp_buffer_init(chip); /* if (0 != (err = videobuf_dma_pci_map(chip->pci, &chip->dma))) { dsp_buffer_free(chip); return err; } */ dprintk(1,"Buffer ready\n"); 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); struct cx88_core *core=chip->core; printk("ALSA Prepare\n"); //spin_lock_irq(&chip->reg_lock); //err = dsp_buffer_init(chip); // spin_unlock_irq(&chip->reg_lock); 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); struct cx8801_fh *fh = chip->fh; int err; dprintk(2,"PCM Trigger cmd=%d\n",cmd); spin_lock(&chip->reg_lock); switch (cmd) { case SNDRV_PCM_TRIGGER_START: //err=videobuf_streamon(&fh->vb_q); //err=_cx88_start_audio_dma(chip); case SNDRV_PCM_TRIGGER_STOP: // err=videobuf_streamoff(&fh->vb_q); //err=_cx88_stop_audio_dma(chip); default: err=-EINVAL; } spin_unlock(&chip->reg_lock); return 0; return err; } /* * 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; snd_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); } /**************************************************************************** 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 = 0x3f; return 0; } /* OK - TODO: test it */ 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); struct cx88_core *core=chip->core; value->value.integer.value[0] = 0x3f - (cx_read(AUD_VOL_CTL) & 0x3f); return 0; } /* OK - TODO: test it */ 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); struct cx88_core *core=chip->core; int v; u32 old_control; spin_lock_irq(&chip->reg_lock); old_control = 0x3f - (cx_read(AUD_VOL_CTL) & 0x3f); v = 0x3f - (value->value.integer.value[0] & 0x3f); cx_andor(AUD_VOL_CTL, 0x3f, v); spin_unlock_irq(&chip->reg_lock); return v != old_control; } 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, }; /* *************************************** */ #if 0 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, }; #endif /**************************************************************************** Basic Flow for Sound Devices ****************************************************************************/ /* * PCI ID Table - 14f1:8801 and 14f1:8811 means function 1: Audio * Only boards with eeprom and byte 1 at eeprom=1 have it */ struct pci_device_id cx88_audio_pci_tbl[] = { {0x14f1,0x8801,PCI_ANY_ID,PCI_ANY_ID,0,0,0}, {0x14f1,0x8811,PCI_ANY_ID,PCI_ANY_ID,0,0,0}, {0, } }; MODULE_DEVICE_TABLE(pci, cx88_audio_pci_tbl); /* * Chip-specific destructor */ static int snd_cx88_free(snd_cx88_card_t *chip) { dprintk(1,"cx88 free\n"); #if 0 if (chip->mmio) { snd_bt87x_stop(chip); if (chip->irq >= 0) synchronize_irq(chip->irq); iounmap(chip->mmio); } #endif pci_disable_device(chip->pci); if (chip->irq >= 0){ synchronize_irq(chip->irq); free_irq(chip->irq, chip); } /* free memory */ //pci_release_regions(chip->pci); // btcx_riscmem_free(chip->pci,&chip->q.stopper); // cx88_core_put(chip->core,chip->pci); //kfree(chip); return 0; } /* * Component Destructor */ static int snd_cx88_dev_free(snd_device_t *device) { snd_cx88_card_t *chip = device->device_data; dprintk(1,"cx88 dev free\n"); return snd_cx88_free(chip); } /* * Alsa Constructor - Component probe */ static int devno=0; static int __devinit snd_cx88_create(snd_card_t *card, struct pci_dev *pci, snd_cx88_card_t **rchip) { snd_cx88_card_t *chip; struct cx88_core *core; int err; static snd_device_ops_t ops = { .dev_free = snd_cx88_dev_free }; *rchip = NULL; err = pci_enable_device(pci); if (err < 0) return err; pci_set_master(pci); if (!pci_dma_supported(pci,0xffffffff)) { dprintk(0, "%s/1: Oops: no 32bit PCI DMA ???\n",core->name); err = -EIO; return err; } chip = kmalloc(sizeof(*chip),GFP_KERNEL); if (NULL == chip) { pci_disable_device(pci); return -ENOMEM; } memset(chip,0,sizeof(*chip)); /* pci init */ chip->card = card; chip->pci = pci; chip->irq = -1; spin_lock_init(&chip->reg_lock); #if 0 if (!request_mem_region(pci_resource_start(pci,0), pci_resource_len(pci,0), "CX88 audio")) { err = -EBUSY; printk(KERN_ERR "%s: can't get MMIO memory @ 0x%lx\n", "CX88 audio",pci_resource_start(pci,0)); kfree(chip); pci_disable_device(pci); return err; } chip->mmio = ioremap_nocache(pci_resource_start(pci, 0), pci_resource_len(pci, 0)); if (!chip->mmio) { kfree(chip); snd_printk(KERN_ERR "cannot remap io memory\n"); return -ENOMEM; } #endif core = cx88_core_get(chip->pci); if (NULL == core) { err = -EINVAL; kfree (chip); return err; } chip->core = core; #if 1 /* Should be tested if it is wright */ chip->dig_rate=48000; #endif #if 1 /* From cx88-mpeg.c */ /* init dma queue */ INIT_LIST_HEAD(&chip->q.active); INIT_LIST_HEAD(&chip->q.queued); chip->q.timeout.function = cx8801_timeout; chip->q.timeout.data = (unsigned long)chip; init_timer(&chip->q.timeout); cx88_risc_stopper(chip->pci,&chip->q.stopper, MO_AUD_DMACNTRL, 0x11,0x00); /* get irq */ err = request_irq(chip->pci->irq, cx8801_irq, SA_SHIRQ | SA_INTERRUPT, chip->core->name, chip); if (err < 0) { dprintk(0, "%s: can't get IRQ %d\n", chip->core->name, chip->pci->irq); return err; } cx_set(MO_PCI_INTMSK, core->pci_irqmask); #endif /* print pci info */ pci_read_config_byte(pci, PCI_CLASS_REVISION, &chip->pci_rev); pci_read_config_byte(pci, PCI_LATENCY_TIMER, &chip->pci_lat); dprintk(1,"ALSA %s/%i: found at %s, rev: %d, irq: %d, " "latency: %d, mmio: 0x%lx\n", core->name, devno, pci_name(pci), chip->pci_rev, pci->irq, chip->pci_lat,pci_resource_start(pci,0)); chip->irq = pci->irq; synchronize_irq(chip->irq); err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops); if (err < 0) { snd_cx88_free(chip); return err; } snd_card_set_dev(card, &pci->dev); *rchip = chip; return 0; } static int __devinit cx88_audio_initdev(struct pci_dev *pci, const struct pci_device_id *pci_id) { snd_card_t *card; snd_cx88_card_t *chip; int err; if (devno >= SNDRV_CARDS) return (-ENODEV); if (!enable[devno]) { ++devno; return (-ENOENT); } card = snd_card_new(index[devno], id[devno], THIS_MODULE, 0); if (!card) return (-ENOMEM); err = snd_cx88_create(card, pci, &chip); if (err < 0) return (err); //err = snd_cx88_pcm(chip, DEVICE_DIGITAL, "CX88 Digital"); err = snd_cx88_pcm(chip, 0, "CX88 Digital"); if (err < 0) { snd_card_free(card); return (err); } err = snd_ctl_add(card, snd_ctl_new1(&snd_cx88_capture_volume, chip)); if (err < 0) { snd_card_free(card); return (err); } strcpy (card->driver, "CX88_ALSA"); sprintf(card->shortname, "Conexant CX%x", pci->device); sprintf(card->longname, "%s at %#lx", card->shortname, pci_resource_start(pci, 0)); strcpy (card->mixername, "CX88"); dprintk (0, "%s/%i: Alsa support for cx2388x boards\n", card->driver,devno); err = snd_card_register(card); if (err < 0) { snd_card_free(card); return (err); } snd_cx88_cards[devno] = card; pci_set_drvdata(pci,card); devno++; return 0; } /* * ALSA destructor */ static void __devexit cx88_audio_finidev(struct pci_dev *pci) { struct cx88_audio_dev *card = pci_get_drvdata(pci); struct cx88_core *core = card->core; //_cx88_stop_audio_dma(card); // pci_disable_device(pci); /* unregister stuff */ // free_irq(pci->irq, card); /* free memory */ // btcx_riscmem_free(card->pci,&card->q.stopper); //cx88_core_put(core,card->pci); snd_card_free((void *)card); kfree(card); pci_set_drvdata(pci, NULL); devno--; } #if 0 .suspend = cx88_audio_suspend, .resume = cx88_audio_resume, #endif /* * 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, SND_PCI_PM_CALLBACKS }; /**************************************************************************** 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_register_driver(&cx88_audio_pci_driver); } /* * module remove */ static void cx88_audio_fini(void) { int idx; /* printk(KERN_INFO "cx88 fini\n"); for (idx = 0; idx < SNDRV_CARDS; idx++) { snd_card_free(snd_cx88_cards[idx]); snd_cx88_cards[idx] = NULL; }*/ pci_unregister_driver(&cx88_audio_pci_driver); } module_init(cx88_audio_init); module_exit(cx88_audio_fini); /* ----------------------------------------------------------- */ /* * Local variables: * c-basic-offset: 8 * End: */