| /* |
| * |
| * Support for audio capture |
| * PCI function #1 of the cx2388x. |
| * |
| * (c) 2005,2006 Ricardo Cerqueira <v4l@cerqueira.org> |
| * (c) 2005 Mauro Carvalho Chehab <mchehab@infradead.org> |
| * Based on a dummy cx88 module by Gerd Knorr <kraxel@bytesex.org> |
| * Based on dummy.c by Jaroslav Kysela <perex@suse.cz> |
| * |
| * 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 <linux/module.h> |
| #include <linux/init.h> |
| #include <linux/device.h> |
| #include <linux/interrupt.h> |
| #include <linux/dma-mapping.h> |
| |
| #include <asm/delay.h> |
| #include <sound/driver.h> |
| #include <sound/core.h> |
| #include <sound/pcm.h> |
| #include <sound/pcm_params.h> |
| #include <sound/control.h> |
| #include <sound/initval.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 |
| ****************************************************************************/ |
| |
| /* These can be replaced after done */ |
| #define MIXER_ADDR_LAST MAX_CX88_INPUT |
| |
| struct cx88_audio_dev { |
| struct cx88_core *core; |
| struct cx88_dmaqueue q; |
| |
| /* pci i/o */ |
| struct pci_dev *pci; |
| unsigned char pci_rev,pci_lat; |
| |
| /* audio controls */ |
| int irq; |
| |
| struct snd_card *card; |
| |
| spinlock_t reg_lock; |
| |
| unsigned int dma_size; |
| unsigned int period_size; |
| unsigned int num_periods; |
| |
| struct videobuf_dmabuf dma_risc; |
| |
| int mixer_volume[MIXER_ADDR_LAST+1][2]; |
| int capture_source[MIXER_ADDR_LAST+1][2]; |
| |
| long int read_count; |
| long int read_offset; |
| |
| struct cx88_buffer *buf; |
| |
| long opened; |
| struct snd_pcm_substream *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)] = 1}; |
| static struct snd_card *snd_cx88_cards[SNDRV_CARDS]; |
| |
| module_param_array(enable, bool, NULL, 0444); |
| MODULE_PARM_DESC(enable, "Enable cx88x soundcard. default enabled."); |
| |
| module_param_array(index, int, NULL, 0444); |
| MODULE_PARM_DESC(index, "Index value for cx88x capture interface(s)."); |
| |
| |
| /**************************************************************************** |
| Module macros |
| ****************************************************************************/ |
| |
| MODULE_DESCRIPTION("ALSA driver module for cx2388x based TV cards"); |
| MODULE_AUTHOR("Ricardo Cerqueira"); |
| MODULE_AUTHOR("Mauro Carvalho Chehab <mchehab@infradead.org>"); |
| MODULE_LICENSE("GPL"); |
| MODULE_SUPPORTED_DEVICE("{{Conexant,23881}," |
| "{{Conexant,23882}," |
| "{{Conexant,23883}"); |
| static unsigned int debug; |
| module_param(debug,int,0644); |
| MODULE_PARM_DESC(debug,"enable debug messages"); |
| |
| /**************************************************************************** |
| Module specific funtions |
| ****************************************************************************/ |
| |
| /* |
| * BOARD Specific: Sets audio DMA |
| */ |
| |
| static int _cx88_start_audio_dma(snd_cx88_card_t *chip) |
| { |
| struct cx88_buffer *buf = chip->buf; |
| struct cx88_core *core=chip->core; |
| struct sram_channel *audio_ch = &cx88_sram_channels[SRAM_CH25]; |
| |
| /* Make sure RISC/FIFO are off before changing FIFO/RISC settings */ |
| cx_clear(MO_AUD_DMACNTRL, 0x11); |
| |
| /* setup fifo + format - out channel */ |
| cx88_sram_channel_setup(chip->core, audio_ch, 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, "Start audio DMA, %d B/line, %d lines/FIFO, %d lines/irq, " |
| "%d B/irq\n", buf->bpl, cx_read(audio_ch->cmds_start + 8)>>1, |
| chip->num_periods, buf->bpl * chip->num_periods); |
| |
| dprintk(1, "Enabling IRQ, setting mask from 0x%x to 0x%x\n", |
| chip->core->pci_irqmask, |
| chip->core->pci_irqmask | PCI_INT_AUDINT); |
| |
| /* Enables corresponding bits at AUD_INT_STAT */ |
| cx_write(MO_AUD_INTMSK, AUD_INT_OPC_ERR | AUD_INT_DN_SYNC | |
| AUD_INT_DN_RISCI2 | AUD_INT_DN_RISCI1); |
| |
| /* Clean any pending interrupt bits already set */ |
| cx_write(MO_AUD_INTSTAT, ~0); |
| |
| /* enable audio irqs */ |
| cx_set(MO_PCI_INTMSK, chip->core->pci_irqmask | PCI_INT_AUDINT); |
| |
| /* start dma */ |
| cx_set(MO_DEV_CNTRL2, (1<<5)); /* Enables Risc Processor */ |
| cx_set(MO_AUD_DMACNTRL, 0x11); /* audio downstream FIFO and RISC enable */ |
| |
| if (debug) |
| cx88_sram_channel_dump(chip->core, audio_ch); |
| |
| return 0; |
| } |
| |
| /* |
| * BOARD Specific: Resets audio DMA |
| */ |
| static 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, PCI_INT_AUDINT); |
| cx_clear(MO_AUD_INTMSK, AUD_INT_OPC_ERR | AUD_INT_DN_SYNC | |
| AUD_INT_DN_RISCI2 | AUD_INT_DN_RISCI1); |
| |
| if (debug) |
| cx88_sram_channel_dump(chip->core, &cx88_sram_channels[SRAM_CH25]); |
| |
| return 0; |
| } |
| |
| #define MAX_IRQ_LOOP 10 |
| |
| /* |
| * 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)) { |
| spin_unlock(&chip->reg_lock); |
| return; |
| } |
| cx_write(MO_AUD_INTSTAT, status); |
| if (debug > 1 || (status & mask & ~0xff)) |
| cx88_print_irqbits(core->name, "irq aud", |
| cx88_aud_irqs, ARRAY_SIZE(cx88_aud_irqs), |
| status, mask); |
| /* risc op code error */ |
| if (status & AUD_INT_OPC_ERR) { |
| printk(KERN_WARNING "%s/0: audio risc op code error\n",core->name); |
| cx_clear(MO_AUD_DMACNTRL, 0x11); |
| cx88_sram_channel_dump(core, &cx88_sram_channels[SRAM_CH25]); |
| } |
| |
| /* risc1 downstream */ |
| if (status & AUD_INT_DN_RISCI1) { |
| spin_lock(&chip->reg_lock); |
| count = cx_read(MO_AUDD_GPCNT); |
| spin_unlock(&chip->reg_lock); |
| if (chip->read_count == 0) |
| chip->read_count += chip->dma_size; |
| } |
| |
| if (chip->read_count >= chip->period_size) { |
| dprintk(2, "Elapsing period\n"); |
| snd_pcm_period_elapsed(chip->substream); |
| } |
| |
| dprintk(3,"Leaving audio IRQ handler...\n"); |
| |
| /* FIXME: Any other status should deserve a special handling? */ |
| } |
| |
| /* |
| * BOARD Specific: Handles IRQ calls |
| */ |
| static irqreturn_t cx8801_irq(int irq, void *dev_id) |
| { |
| 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 | PCI_INT_AUDINT); |
| 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) |
| cx88_core_irq(core, status); |
| if (status & PCI_INT_AUDINT) { |
| dprintk( 2, " 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_clear(MO_PCI_INTMSK, PCI_INT_AUDINT); |
| } |
| |
| out: |
| return IRQ_RETVAL(handled); |
| } |
| |
| |
| static int dsp_buffer_free(snd_cx88_card_t *chip) |
| { |
| BUG_ON(!chip->dma_size); |
| |
| dprintk(2,"Freeing buffer\n"); |
| videobuf_pci_dma_unmap(chip->pci, &chip->dma_risc); |
| videobuf_dma_free(&chip->dma_risc); |
| btcx_riscmem_free(chip->pci,&chip->buf->risc); |
| kfree(chip->buf); |
| |
| chip->dma_size = 0; |
| |
| return 0; |
| } |
| |
| /**************************************************************************** |
| ALSA PCM Interface |
| ****************************************************************************/ |
| |
| /* |
| * Digital hardware definition |
| */ |
| static struct snd_pcm_hardware 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 = 1, |
| .channels_max = 2, |
| .buffer_bytes_max = (2*2048), |
| .period_bytes_min = 2048, |
| .period_bytes_max = 2048, |
| .periods_min = 2, |
| .periods_max = 2, |
| }; |
| |
| /* |
| * audio pcm capture runtime free |
| */ |
| static void snd_card_cx88_runtime_free(struct snd_pcm_runtime *runtime) |
| { |
| } |
| /* |
| * audio pcm capture open callback |
| */ |
| static int snd_cx88_pcm_open(struct snd_pcm_substream *substream) |
| { |
| snd_cx88_card_t *chip = snd_pcm_substream_chip(substream); |
| struct snd_pcm_runtime *runtime = substream->runtime; |
| int err; |
| |
| 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; |
| |
| chip->read_count = 0; |
| chip->read_offset = 0; |
| |
| runtime->private_free = snd_card_cx88_runtime_free; |
| runtime->hw = snd_cx88_digital_hw; |
| |
| 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(struct snd_pcm_substream *substream) |
| { |
| snd_cx88_card_t *chip = snd_pcm_substream_chip(substream); |
| |
| clear_bit(0, &chip->opened); |
| smp_mb__after_clear_bit(); |
| |
| return 0; |
| } |
| |
| /* |
| * hw_params callback |
| */ |
| static int snd_cx88_hw_params(struct snd_pcm_substream * substream, |
| struct snd_pcm_hw_params * hw_params) |
| { |
| snd_cx88_card_t *chip = snd_pcm_substream_chip(substream); |
| struct cx88_buffer *buf; |
| |
| if (substream->runtime->dma_area) { |
| dsp_buffer_free(chip); |
| substream->runtime->dma_area = NULL; |
| } |
| |
| |
| chip->period_size = params_period_bytes(hw_params); |
| chip->num_periods = params_periods(hw_params); |
| chip->dma_size = chip->period_size * params_periods(hw_params); |
| |
| BUG_ON(!chip->dma_size); |
| |
| dprintk(1,"Setting buffer\n"); |
| |
| buf = kzalloc(sizeof(*buf),GFP_KERNEL); |
| if (NULL == buf) |
| return -ENOMEM; |
| |
| buf->vb.memory = V4L2_MEMORY_MMAP; |
| buf->vb.width = chip->period_size; |
| buf->vb.height = chip->num_periods; |
| buf->vb.size = chip->dma_size; |
| buf->vb.field = V4L2_FIELD_NONE; |
| |
| videobuf_dma_init(&buf->vb.dma); |
| videobuf_dma_init_kernel(&buf->vb.dma,PCI_DMA_FROMDEVICE, |
| (PAGE_ALIGN(buf->vb.size) >> PAGE_SHIFT)); |
| |
| videobuf_pci_dma_map(chip->pci,&buf->vb.dma); |
| |
| |
| cx88_risc_databuffer(chip->pci, &buf->risc, |
| buf->vb.dma.sglist, |
| buf->vb.width, buf->vb.height); |
| |
| buf->risc.jmp[0] = cpu_to_le32(RISC_JUMP | RISC_IRQ1 | RISC_CNT_INC); |
| buf->risc.jmp[1] = cpu_to_le32(buf->risc.dma); |
| |
| buf->vb.state = STATE_PREPARED; |
| |
| buf->bpl = chip->period_size; |
| chip->buf = buf; |
| chip->dma_risc = buf->vb.dma; |
| |
| dprintk(1,"Buffer ready at %u\n",chip->dma_risc.nr_pages); |
| substream->runtime->dma_area = chip->dma_risc.vmalloc; |
| return 0; |
| } |
| |
| /* |
| * hw free callback |
| */ |
| static int snd_cx88_hw_free(struct snd_pcm_substream * substream) |
| { |
| |
| snd_cx88_card_t *chip = snd_pcm_substream_chip(substream); |
| |
| if (substream->runtime->dma_area) { |
| dsp_buffer_free(chip); |
| substream->runtime->dma_area = NULL; |
| } |
| |
| return 0; |
| } |
| |
| /* |
| * prepare callback |
| */ |
| static int snd_cx88_prepare(struct snd_pcm_substream *substream) |
| { |
| return 0; |
| } |
| |
| |
| /* |
| * trigger callback |
| */ |
| static int snd_cx88_card_trigger(struct snd_pcm_substream *substream, int cmd) |
| { |
| snd_cx88_card_t *chip = snd_pcm_substream_chip(substream); |
| int err; |
| |
| spin_lock(&chip->reg_lock); |
| |
| switch (cmd) { |
| case SNDRV_PCM_TRIGGER_START: |
| err=_cx88_start_audio_dma(chip); |
| break; |
| case SNDRV_PCM_TRIGGER_STOP: |
| err=_cx88_stop_audio_dma(chip); |
| break; |
| default: |
| err=-EINVAL; |
| break; |
| } |
| |
| spin_unlock(&chip->reg_lock); |
| |
| return err; |
| } |
| |
| /* |
| * pointer callback |
| */ |
| static snd_pcm_uframes_t snd_cx88_pointer(struct snd_pcm_substream *substream) |
| { |
| snd_cx88_card_t *chip = snd_pcm_substream_chip(substream); |
| struct snd_pcm_runtime *runtime = substream->runtime; |
| |
| if (chip->read_count) { |
| chip->read_count -= snd_pcm_lib_period_bytes(substream); |
| chip->read_offset += snd_pcm_lib_period_bytes(substream); |
| if (chip->read_offset == chip->dma_size) |
| chip->read_offset = 0; |
| } |
| |
| dprintk(2, "Pointer time, will return %li, read %li\n",chip->read_offset,chip->read_count); |
| return bytes_to_frames(runtime, chip->read_offset); |
| |
| } |
| |
| /* |
| * operators |
| */ |
| static struct snd_pcm_ops 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, |
| }; |
| |
| /* |
| * create a PCM device |
| */ |
| static int __devinit snd_cx88_pcm(snd_cx88_card_t *chip, int device, char *name) |
| { |
| int err; |
| struct snd_pcm *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 0; |
| } |
| |
| /**************************************************************************** |
| CONTROL INTERFACE |
| ****************************************************************************/ |
| static int snd_cx88_capture_volume_info(struct snd_kcontrol *kcontrol, |
| struct snd_ctl_elem_info *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(struct snd_kcontrol *kcontrol, |
| struct snd_ctl_elem_value *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(struct snd_kcontrol *kcontrol, |
| struct snd_ctl_elem_value *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 struct snd_kcontrol_new 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, |
| }; |
| |
| |
| /**************************************************************************** |
| 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 |
| */ |
| |
| static struct pci_device_id cx88_audio_pci_tbl[] __devinitdata = { |
| {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) |
| { |
| |
| if (chip->irq >= 0){ |
| synchronize_irq(chip->irq); |
| free_irq(chip->irq, chip); |
| } |
| |
| cx88_core_put(chip->core,chip->pci); |
| |
| pci_disable_device(chip->pci); |
| return 0; |
| } |
| |
| /* |
| * Component Destructor |
| */ |
| static void snd_cx88_dev_free(struct snd_card * card) |
| { |
| snd_cx88_card_t *chip = card->private_data; |
| |
| snd_cx88_free(chip); |
| } |
| |
| |
| /* |
| * Alsa Constructor - Component probe |
| */ |
| |
| static int devno; |
| static int __devinit snd_cx88_create(struct snd_card *card, |
| struct pci_dev *pci, |
| snd_cx88_card_t **rchip) |
| { |
| snd_cx88_card_t *chip; |
| struct cx88_core *core; |
| int err; |
| |
| *rchip = NULL; |
| |
| err = pci_enable_device(pci); |
| if (err < 0) |
| return err; |
| |
| pci_set_master(pci); |
| |
| chip = (snd_cx88_card_t *) card->private_data; |
| |
| core = cx88_core_get(pci); |
| if (NULL == core) { |
| err = -EINVAL; |
| kfree (chip); |
| return err; |
| } |
| |
| if (!pci_dma_supported(pci,DMA_32BIT_MASK)) { |
| dprintk(0, "%s/1: Oops: no 32bit PCI DMA ???\n",core->name); |
| err = -EIO; |
| cx88_core_put(core,pci); |
| return err; |
| } |
| |
| |
| /* pci init */ |
| chip->card = card; |
| chip->pci = pci; |
| chip->irq = -1; |
| spin_lock_init(&chip->reg_lock); |
| |
| chip->core = core; |
| |
| /* get irq */ |
| err = request_irq(chip->pci->irq, cx8801_irq, |
| IRQF_SHARED | IRQF_DISABLED, chip->core->name, chip); |
| if (err < 0) { |
| dprintk(0, "%s: can't get IRQ %d\n", |
| chip->core->name, chip->pci->irq); |
| return err; |
| } |
| |
| /* 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%llx\n", core->name, devno, |
| pci_name(pci), chip->pci_rev, pci->irq, |
| chip->pci_lat,(unsigned long long)pci_resource_start(pci,0)); |
| |
| chip->irq = pci->irq; |
| synchronize_irq(chip->irq); |
| |
| 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) |
| { |
| struct snd_card *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, sizeof(snd_cx88_card_t)); |
| if (!card) |
| return (-ENOMEM); |
| |
| card->private_free = snd_cx88_dev_free; |
| |
| err = snd_cx88_create(card, pci, &chip); |
| if (err < 0) |
| return (err); |
| |
| 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, "CX88x"); |
| sprintf(card->shortname, "Conexant CX%x", pci->device); |
| sprintf(card->longname, "%s at %#llx", |
| card->shortname,(unsigned long long)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); |
| |
| snd_card_free((void *)card); |
| |
| pci_set_drvdata(pci, NULL); |
| |
| devno--; |
| } |
| |
| /* |
| * 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, |
| }; |
| |
| /**************************************************************************** |
| 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) |
| { |
| |
| pci_unregister_driver(&cx88_audio_pci_driver); |
| } |
| |
| module_init(cx88_audio_init); |
| module_exit(cx88_audio_fini); |
| |
| /* ----------------------------------------------------------- */ |
| /* |
| * Local variables: |
| * c-basic-offset: 8 |
| * End: |
| */ |