diff options
Diffstat (limited to 'drivers/media/video/cx88/cx88-alsa.c')
| -rw-r--r-- | drivers/media/video/cx88/cx88-alsa.c | 975 |
1 files changed, 0 insertions, 975 deletions
diff --git a/drivers/media/video/cx88/cx88-alsa.c b/drivers/media/video/cx88/cx88-alsa.c deleted file mode 100644 index 3aa6856ead3b..000000000000 --- a/drivers/media/video/cx88/cx88-alsa.c +++ /dev/null @@ -1,975 +0,0 @@ -/* - * - * Support for audio capture - * PCI function #1 of the cx2388x. - * - * (c) 2007 Trent Piepho <xyzzy@speakeasy.org> - * (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@perex.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/vmalloc.h> -#include <linux/dma-mapping.h> -#include <linux/pci.h> -#include <linux/slab.h> - -#include <asm/delay.h> -#include <sound/core.h> -#include <sound/pcm.h> -#include <sound/pcm_params.h> -#include <sound/control.h> -#include <sound/initval.h> -#include <sound/tlv.h> -#include <media/wm8775.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 - ****************************************************************************/ - -struct cx88_audio_buffer { - unsigned int bpl; - struct btcx_riscmem risc; - struct videobuf_dmabuf dma; -}; - -struct cx88_audio_dev { - struct cx88_core *core; - struct cx88_dmaqueue q; - - /* pci i/o */ - struct pci_dev *pci; - - /* audio controls */ - int irq; - - struct snd_card *card; - - spinlock_t reg_lock; - atomic_t count; - - unsigned int dma_size; - unsigned int period_size; - unsigned int num_periods; - - struct videobuf_dmabuf *dma_risc; - - struct cx88_audio_buffer *buf; - - 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 const char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */ -static bool enable[SNDRV_CARDS] = {1, [1 ... (SNDRV_CARDS - 1)] = 1}; - -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_VERSION(CX88_VERSION); - -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_audio_buffer *buf = chip->buf; - struct cx88_core *core=chip->core; - const 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); - atomic_set(&chip->count, 0); - - dprintk(1, "Start audio DMA, %d B/line, %d lines/FIFO, %d periods, %d " - "byte buffer\n", buf->bpl, cx_read(audio_ch->cmds_start + 8)>>1, - chip->num_periods, buf->bpl * chip->num_periods); - - /* 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 50 - -/* - * BOARD Specific: IRQ dma bits - */ -static const 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; - - 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 > 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/1: Audio risc op code error\n",core->name); - cx_clear(MO_AUD_DMACNTRL, 0x11); - cx88_sram_channel_dump(core, &cx88_sram_channels[SRAM_CH25]); - } - if (status & AUD_INT_DN_SYNC) { - dprintk(1, "Downstream sync error\n"); - cx_write(MO_AUDD_GPCNTRL, GP_COUNT_CONTROL_RESET); - return; - } - /* risc1 downstream */ - if (status & AUD_INT_DN_RISCI1) { - atomic_set(&chip->count, cx_read(MO_AUDD_GPCNT)); - snd_pcm_period_elapsed(chip->substream); - } - /* 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 loop %d/%d, status %x\n", - loop, MAX_IRQ_LOOP, status); - handled = 1; - cx_write(MO_PCI_INTSTAT, status); - - if (status & core->pci_irqmask) - cx88_core_irq(core, status); - if (status & PCI_INT_AUDINT) - cx8801_aud_irq(chip); - } - - if (MAX_IRQ_LOOP == loop) { - printk(KERN_ERR - "%s/1: IRQ loop detected, disabling interrupts\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_dma_unmap(&chip->pci->dev, chip->dma_risc); - videobuf_dma_free(chip->dma_risc); - btcx_riscmem_free(chip->pci,&chip->buf->risc); - kfree(chip->buf); - - chip->dma_risc = NULL; - chip->dma_size = 0; - - return 0; -} - -/**************************************************************************** - ALSA PCM Interface - ****************************************************************************/ - -/* - * Digital hardware definition - */ -#define DEFAULT_FIFO_SIZE 4096 -static const 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 = 2, - .channels_max = 2, - /* Analog audio output will be full of clicks and pops if there - are not exactly four lines in the SRAM FIFO buffer. */ - .period_bytes_min = DEFAULT_FIFO_SIZE/4, - .period_bytes_max = DEFAULT_FIFO_SIZE/4, - .periods_min = 1, - .periods_max = 1024, - .buffer_bytes_max = (1024*1024), -}; - -/* - * 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 (!chip) { - printk(KERN_ERR "BUG: cx88 can't find device struct." - " Can't proceed with open\n"); - return -ENODEV; - } - - err = snd_pcm_hw_constraint_pow2(runtime, 0, SNDRV_PCM_HW_PARAM_PERIODS); - if (err < 0) - goto _error; - - chip->substream = substream; - - runtime->hw = snd_cx88_digital_hw; - - if (cx88_sram_channels[SRAM_CH25].fifo_size != DEFAULT_FIFO_SIZE) { - unsigned int bpl = cx88_sram_channels[SRAM_CH25].fifo_size / 4; - bpl &= ~7; /* must be multiple of 8 */ - runtime->hw.period_bytes_min = bpl; - runtime->hw.period_bytes_max = bpl; - } - - return 0; -_error: - dprintk(1,"Error opening PCM!\n"); - return err; -} - -/* - * audio close callback - */ -static int snd_cx88_close(struct snd_pcm_substream *substream) -{ - 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 videobuf_dmabuf *dma; - - struct cx88_audio_buffer *buf; - int ret; - - 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); - BUG_ON(chip->num_periods & (chip->num_periods-1)); - - buf = kzalloc(sizeof(*buf), GFP_KERNEL); - if (NULL == buf) - return -ENOMEM; - - buf->bpl = chip->period_size; - - dma = &buf->dma; - videobuf_dma_init(dma); - ret = videobuf_dma_init_kernel(dma, PCI_DMA_FROMDEVICE, - (PAGE_ALIGN(chip->dma_size) >> PAGE_SHIFT)); - if (ret < 0) - goto error; - - ret = videobuf_dma_map(&chip->pci->dev, dma); - if (ret < 0) - goto error; - - ret = cx88_risc_databuffer(chip->pci, &buf->risc, dma->sglist, - chip->period_size, chip->num_periods, 1); - if (ret < 0) - goto error; - - /* Loop back to start of program */ - buf->risc.jmp[0] = cpu_to_le32(RISC_JUMP|RISC_IRQ1|RISC_CNT_INC); - buf->risc.jmp[1] = cpu_to_le32(buf->risc.dma); - - chip->buf = buf; - chip->dma_risc = dma; - - substream->runtime->dma_area = chip->dma_risc->vaddr; - substream->runtime->dma_bytes = chip->dma_size; - substream->runtime->dma_addr = 0; - return 0; - -error: - kfree(buf); - return ret; -} - -/* - * 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; - - /* Local interrupts are already disabled by ALSA */ - 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; - u16 count; - - count = atomic_read(&chip->count); - -// dprintk(2, "%s - count %d (+%u), period %d, frame %lu\n", __func__, -// count, new, count & (runtime->periods-1), -// runtime->period_size * (count & (runtime->periods-1))); - return runtime->period_size * (count & (runtime->periods-1)); -} - -/* - * page callback (needed for mmap) - */ -static struct page *snd_cx88_page(struct snd_pcm_substream *substream, - unsigned long offset) -{ - void *pageptr = substream->runtime->dma_area + offset; - return vmalloc_to_page(pageptr); -} - -/* - * 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, - .page = snd_cx88_page, -}; - -/* - * create a PCM device - */ -static int __devinit snd_cx88_pcm(snd_cx88_card_t *chip, int device, const 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_volume_info(struct snd_kcontrol *kcontrol, - struct snd_ctl_elem_info *info) -{ - info->type = SNDRV_CTL_ELEM_TYPE_INTEGER; - info->count = 2; - info->value.integer.min = 0; - info->value.integer.max = 0x3f; - - return 0; -} - -static int snd_cx88_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; - int vol = 0x3f - (cx_read(AUD_VOL_CTL) & 0x3f), - bal = cx_read(AUD_BAL_CTL); - - value->value.integer.value[(bal & 0x40) ? 0 : 1] = vol; - vol -= (bal & 0x3f); - value->value.integer.value[(bal & 0x40) ? 1 : 0] = vol < 0 ? 0 : vol; - - return 0; -} - -static void snd_cx88_wm8775_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 left = value->value.integer.value[0]; - int right = value->value.integer.value[1]; - int v, b; - - /* Pass volume & balance onto any WM8775 */ - if (left >= right) { - v = left << 10; - b = left ? (0x8000 * right) / left : 0x8000; - } else { - v = right << 10; - b = right ? 0xffff - (0x8000 * left) / right : 0x8000; - } - wm8775_s_ctrl(core, V4L2_CID_AUDIO_VOLUME, v); - wm8775_s_ctrl(core, V4L2_CID_AUDIO_BALANCE, b); -} - -/* OK - TODO: test it */ -static int snd_cx88_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 left, right, v, b; - int changed = 0; - u32 old; - - if (core->board.audio_chip == V4L2_IDENT_WM8775) - snd_cx88_wm8775_volume_put(kcontrol, value); - - left = value->value.integer.value[0] & 0x3f; - right = value->value.integer.value[1] & 0x3f; - b = right - left; - if (b < 0) { - v = 0x3f - left; - b = (-b) | 0x40; - } else { - v = 0x3f - right; - } - /* Do we really know this will always be called with IRQs on? */ - spin_lock_irq(&chip->reg_lock); - old = cx_read(AUD_VOL_CTL); - if (v != (old & 0x3f)) { - cx_swrite(SHADOW_AUD_VOL_CTL, AUD_VOL_CTL, (old & ~0x3f) | v); - changed = 1; - } - if ((cx_read(AUD_BAL_CTL) & 0x7f) != b) { - cx_write(AUD_BAL_CTL, b); - changed = 1; - } - spin_unlock_irq(&chip->reg_lock); - - return changed; -} - -static const DECLARE_TLV_DB_SCALE(snd_cx88_db_scale, -6300, 100, 0); - -static const struct snd_kcontrol_new snd_cx88_volume = { - .iface = SNDRV_CTL_ELEM_IFACE_MIXER, - .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | - SNDRV_CTL_ELEM_ACCESS_TLV_READ, - .name = "Analog-TV Volume", - .info = snd_cx88_volume_info, - .get = snd_cx88_volume_get, - .put = snd_cx88_volume_put, - .tlv.p = snd_cx88_db_scale, -}; - -static int snd_cx88_switch_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; - u32 bit = kcontrol->private_value; - - value->value.integer.value[0] = !(cx_read(AUD_VOL_CTL) & bit); - return 0; -} - -static int snd_cx88_switch_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; - u32 bit = kcontrol->private_value; - int ret = 0; - u32 vol; - - spin_lock_irq(&chip->reg_lock); - vol = cx_read(AUD_VOL_CTL); - if (value->value.integer.value[0] != !(vol & bit)) { - vol ^= bit; - cx_swrite(SHADOW_AUD_VOL_CTL, AUD_VOL_CTL, vol); - /* Pass mute onto any WM8775 */ - if ((core->board.audio_chip == V4L2_IDENT_WM8775) && - ((1<<6) == bit)) - wm8775_s_ctrl(core, V4L2_CID_AUDIO_MUTE, 0 != (vol & bit)); - ret = 1; - } - spin_unlock_irq(&chip->reg_lock); - return ret; -} - -static const struct snd_kcontrol_new snd_cx88_dac_switch = { - .iface = SNDRV_CTL_ELEM_IFACE_MIXER, - .name = "Audio-Out Switch", - .info = snd_ctl_boolean_mono_info, - .get = snd_cx88_switch_get, - .put = snd_cx88_switch_put, - .private_value = (1<<8), -}; - -static const struct snd_kcontrol_new snd_cx88_source_switch = { - .iface = SNDRV_CTL_ELEM_IFACE_MIXER, - .name = "Analog-TV Switch", - .info = snd_ctl_boolean_mono_info, - .get = snd_cx88_switch_get, - .put = snd_cx88_switch_put, - .private_value = (1<<6), -}; - -static int snd_cx88_alc_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; - s32 val; - - val = wm8775_g_ctrl(core, V4L2_CID_AUDIO_LOUDNESS); - value->value.integer.value[0] = val ? 1 : 0; - return 0; -} - -static int snd_cx88_alc_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; - struct v4l2_control client_ctl; - - memset(&client_ctl, 0, sizeof(client_ctl)); - client_ctl.value = 0 != value->value.integer.value[0]; - client_ctl.id = V4L2_CID_AUDIO_LOUDNESS; - call_hw(core, WM8775_GID, core, s_ctrl, &client_ctl); - - return 0; -} - -static struct snd_kcontrol_new snd_cx88_alc_switch = { - .iface = SNDRV_CTL_ELEM_IFACE_MIXER, - .name = "Line-In ALC Switch", - .info = snd_ctl_boolean_mono_info, - .get = snd_cx88_alc_get, - .put = snd_cx88_alc_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 const 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) - 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, - struct cx88_core **core_ptr) -{ - snd_cx88_card_t *chip; - struct cx88_core *core; - int err; - unsigned char pci_lat; - - *rchip = NULL; - - err = pci_enable_device(pci); - if (err < 0) - return err; - - pci_set_master(pci); - - chip = card->private_data; - - core = cx88_core_get(pci); - if (NULL == core) { - err = -EINVAL; - return err; - } - - if (!pci_dma_supported(pci,DMA_BIT_MASK(32))) { - 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_LATENCY_TIMER, &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), pci->revision, pci->irq, - 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; - *core_ptr = core; - - 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; - struct cx88_core *core = NULL; - int err; - - if (devno >= SNDRV_CARDS) - return (-ENODEV); - - if (!enable[devno]) { - ++devno; - return (-ENOENT); - } - - err = snd_card_create(index[devno], id[devno], THIS_MODULE, - sizeof(snd_cx88_card_t), &card); - if (err < 0) - return err; - - card->private_free = snd_cx88_dev_free; - - err = snd_cx88_create(card, pci, &chip, &core); - if (err < 0) - goto error; - - err = snd_cx88_pcm(chip, 0, "CX88 Digital"); - if (err < 0) - goto error; - - err = snd_ctl_add(card, snd_ctl_new1(&snd_cx88_volume, chip)); - if (err < 0) - goto error; - err = snd_ctl_add(card, snd_ctl_new1(&snd_cx88_dac_switch, chip)); - if (err < 0) - goto error; - err = snd_ctl_add(card, snd_ctl_new1(&snd_cx88_source_switch, chip)); - if (err < 0) - goto error; - - /* If there's a wm8775 then add a Line-In ALC switch */ - if (core->board.audio_chip == V4L2_IDENT_WM8775) - snd_ctl_add(card, snd_ctl_new1(&snd_cx88_alc_switch, chip)); - - 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) - goto error; - pci_set_drvdata(pci,card); - - devno++; - return 0; - -error: - snd_card_free(card); - return err; -} -/* - * 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 = __devexit_p(cx88_audio_finidev), -}; - -/**************************************************************************** - LINUX MODULE INIT - ****************************************************************************/ - -/* - * module init - */ -static int __init cx88_audio_init(void) -{ - printk(KERN_INFO "cx2388x alsa driver version %s loaded\n", - CX88_VERSION); - return pci_register_driver(&cx88_audio_pci_driver); -} - -/* - * module remove - */ -static void __exit cx88_audio_fini(void) -{ - pci_unregister_driver(&cx88_audio_pci_driver); -} - -module_init(cx88_audio_init); -module_exit(cx88_audio_fini); |
