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V4L/DVB (12830): tm6000: copy cx88-alsa as tm6000-alsa
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Mauro Carvalho Chehab
parent
ee1fc07c9f
commit
d72d50670e
912
drivers/staging/tm6000/tm6000-alsa.c
Normal file
912
drivers/staging/tm6000/tm6000-alsa.c
Normal file
@ -0,0 +1,912 @@
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/*
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*
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* Support for audio capture
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* PCI function #1 of the cx2388x.
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*
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* (c) 2007 Trent Piepho <xyzzy@speakeasy.org>
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* (c) 2005,2006 Ricardo Cerqueira <v4l@cerqueira.org>
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* (c) 2005 Mauro Carvalho Chehab <mchehab@redhat.com>
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* Based on a dummy cx88 module by Gerd Knorr <kraxel@bytesex.org>
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* Based on dummy.c by Jaroslav Kysela <perex@perex.cz>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include <linux/module.h>
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#include <linux/init.h>
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#include <linux/device.h>
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#include <linux/interrupt.h>
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#include <linux/vmalloc.h>
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#include <linux/dma-mapping.h>
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#include <linux/pci.h>
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#include <asm/delay.h>
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#include <sound/driver.h>
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#include <sound/core.h>
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#include <sound/pcm.h>
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#include <sound/pcm_params.h>
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#include <sound/control.h>
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#include <sound/initval.h>
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#include <sound/tlv.h>
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#include "cx88.h"
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#include "cx88-reg.h"
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#define dprintk(level,fmt, arg...) if (debug >= level) \
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printk(KERN_INFO "%s/1: " fmt, chip->core->name , ## arg)
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#define dprintk_core(level,fmt, arg...) if (debug >= level) \
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printk(KERN_DEBUG "%s/1: " fmt, chip->core->name , ## arg)
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/****************************************************************************
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Data type declarations - Can be moded to a header file later
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****************************************************************************/
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struct cx88_audio_dev {
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struct cx88_core *core;
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struct cx88_dmaqueue q;
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/* pci i/o */
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struct pci_dev *pci;
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/* audio controls */
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int irq;
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struct snd_card *card;
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spinlock_t reg_lock;
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atomic_t count;
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unsigned int dma_size;
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unsigned int period_size;
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unsigned int num_periods;
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struct videobuf_dmabuf *dma_risc;
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struct cx88_buffer *buf;
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struct snd_pcm_substream *substream;
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};
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typedef struct cx88_audio_dev snd_cx88_card_t;
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/****************************************************************************
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Module global static vars
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****************************************************************************/
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static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */
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static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */
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static int enable[SNDRV_CARDS] = {1, [1 ... (SNDRV_CARDS - 1)] = 1};
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module_param_array(enable, bool, NULL, 0444);
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MODULE_PARM_DESC(enable, "Enable cx88x soundcard. default enabled.");
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module_param_array(index, int, NULL, 0444);
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MODULE_PARM_DESC(index, "Index value for cx88x capture interface(s).");
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/****************************************************************************
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Module macros
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****************************************************************************/
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MODULE_DESCRIPTION("ALSA driver module for cx2388x based TV cards");
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MODULE_AUTHOR("Ricardo Cerqueira");
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MODULE_AUTHOR("Mauro Carvalho Chehab <mchehab@redhat.com>");
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MODULE_LICENSE("GPL");
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MODULE_SUPPORTED_DEVICE("{{Conexant,23881},"
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"{{Conexant,23882},"
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"{{Conexant,23883}");
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static unsigned int debug;
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module_param(debug,int,0644);
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MODULE_PARM_DESC(debug,"enable debug messages");
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/****************************************************************************
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Module specific funtions
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****************************************************************************/
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/*
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* BOARD Specific: Sets audio DMA
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*/
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static int _cx88_start_audio_dma(snd_cx88_card_t *chip)
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{
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struct cx88_buffer *buf = chip->buf;
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struct cx88_core *core=chip->core;
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struct sram_channel *audio_ch = &cx88_sram_channels[SRAM_CH25];
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/* Make sure RISC/FIFO are off before changing FIFO/RISC settings */
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cx_clear(MO_AUD_DMACNTRL, 0x11);
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/* setup fifo + format - out channel */
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cx88_sram_channel_setup(chip->core, audio_ch, buf->bpl, buf->risc.dma);
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/* sets bpl size */
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cx_write(MO_AUDD_LNGTH, buf->bpl);
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/* reset counter */
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cx_write(MO_AUDD_GPCNTRL, GP_COUNT_CONTROL_RESET);
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atomic_set(&chip->count, 0);
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dprintk(1, "Start audio DMA, %d B/line, %d lines/FIFO, %d periods, %d "
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"byte buffer\n", buf->bpl, cx_read(audio_ch->cmds_start + 8)>>1,
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chip->num_periods, buf->bpl * chip->num_periods);
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/* Enables corresponding bits at AUD_INT_STAT */
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cx_write(MO_AUD_INTMSK, AUD_INT_OPC_ERR | AUD_INT_DN_SYNC |
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AUD_INT_DN_RISCI2 | AUD_INT_DN_RISCI1);
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/* Clean any pending interrupt bits already set */
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cx_write(MO_AUD_INTSTAT, ~0);
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/* enable audio irqs */
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cx_set(MO_PCI_INTMSK, chip->core->pci_irqmask | PCI_INT_AUDINT);
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/* start dma */
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cx_set(MO_DEV_CNTRL2, (1<<5)); /* Enables Risc Processor */
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cx_set(MO_AUD_DMACNTRL, 0x11); /* audio downstream FIFO and RISC enable */
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if (debug)
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cx88_sram_channel_dump(chip->core, audio_ch);
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return 0;
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}
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/*
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* BOARD Specific: Resets audio DMA
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*/
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static int _cx88_stop_audio_dma(snd_cx88_card_t *chip)
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{
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struct cx88_core *core=chip->core;
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dprintk(1, "Stopping audio DMA\n");
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/* stop dma */
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cx_clear(MO_AUD_DMACNTRL, 0x11);
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/* disable irqs */
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cx_clear(MO_PCI_INTMSK, PCI_INT_AUDINT);
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cx_clear(MO_AUD_INTMSK, AUD_INT_OPC_ERR | AUD_INT_DN_SYNC |
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AUD_INT_DN_RISCI2 | AUD_INT_DN_RISCI1);
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if (debug)
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cx88_sram_channel_dump(chip->core, &cx88_sram_channels[SRAM_CH25]);
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return 0;
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}
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#define MAX_IRQ_LOOP 50
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/*
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* BOARD Specific: IRQ dma bits
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*/
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static char *cx88_aud_irqs[32] = {
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"dn_risci1", "up_risci1", "rds_dn_risc1", /* 0-2 */
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NULL, /* reserved */
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"dn_risci2", "up_risci2", "rds_dn_risc2", /* 4-6 */
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NULL, /* reserved */
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"dnf_of", "upf_uf", "rds_dnf_uf", /* 8-10 */
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NULL, /* reserved */
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"dn_sync", "up_sync", "rds_dn_sync", /* 12-14 */
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NULL, /* reserved */
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"opc_err", "par_err", "rip_err", /* 16-18 */
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"pci_abort", "ber_irq", "mchg_irq" /* 19-21 */
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};
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/*
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* BOARD Specific: Threats IRQ audio specific calls
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*/
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static void cx8801_aud_irq(snd_cx88_card_t *chip)
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{
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struct cx88_core *core = chip->core;
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u32 status, mask;
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status = cx_read(MO_AUD_INTSTAT);
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mask = cx_read(MO_AUD_INTMSK);
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if (0 == (status & mask))
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return;
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cx_write(MO_AUD_INTSTAT, status);
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if (debug > 1 || (status & mask & ~0xff))
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cx88_print_irqbits(core->name, "irq aud",
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cx88_aud_irqs, ARRAY_SIZE(cx88_aud_irqs),
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status, mask);
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/* risc op code error */
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if (status & AUD_INT_OPC_ERR) {
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printk(KERN_WARNING "%s/1: Audio risc op code error\n",core->name);
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cx_clear(MO_AUD_DMACNTRL, 0x11);
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cx88_sram_channel_dump(core, &cx88_sram_channels[SRAM_CH25]);
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}
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if (status & AUD_INT_DN_SYNC) {
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dprintk(1, "Downstream sync error\n");
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cx_write(MO_AUDD_GPCNTRL, GP_COUNT_CONTROL_RESET);
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return;
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}
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/* risc1 downstream */
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if (status & AUD_INT_DN_RISCI1) {
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atomic_set(&chip->count, cx_read(MO_AUDD_GPCNT));
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snd_pcm_period_elapsed(chip->substream);
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}
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/* FIXME: Any other status should deserve a special handling? */
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}
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/*
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* BOARD Specific: Handles IRQ calls
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*/
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static irqreturn_t cx8801_irq(int irq, void *dev_id)
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{
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snd_cx88_card_t *chip = dev_id;
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struct cx88_core *core = chip->core;
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u32 status;
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int loop, handled = 0;
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for (loop = 0; loop < MAX_IRQ_LOOP; loop++) {
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status = cx_read(MO_PCI_INTSTAT) &
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(core->pci_irqmask | PCI_INT_AUDINT);
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if (0 == status)
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goto out;
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dprintk(3, "cx8801_irq loop %d/%d, status %x\n",
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loop, MAX_IRQ_LOOP, status);
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handled = 1;
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cx_write(MO_PCI_INTSTAT, status);
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if (status & core->pci_irqmask)
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cx88_core_irq(core, status);
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if (status & PCI_INT_AUDINT)
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cx8801_aud_irq(chip);
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}
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if (MAX_IRQ_LOOP == loop) {
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printk(KERN_ERR
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"%s/1: IRQ loop detected, disabling interrupts\n",
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core->name);
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cx_clear(MO_PCI_INTMSK, PCI_INT_AUDINT);
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}
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out:
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return IRQ_RETVAL(handled);
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}
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static int dsp_buffer_free(snd_cx88_card_t *chip)
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{
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BUG_ON(!chip->dma_size);
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dprintk(2,"Freeing buffer\n");
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videobuf_pci_dma_unmap(chip->pci, chip->dma_risc);
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videobuf_dma_free(chip->dma_risc);
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btcx_riscmem_free(chip->pci,&chip->buf->risc);
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kfree(chip->buf);
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chip->dma_risc = NULL;
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chip->dma_size = 0;
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return 0;
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}
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/****************************************************************************
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ALSA PCM Interface
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****************************************************************************/
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/*
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* Digital hardware definition
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*/
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#define DEFAULT_FIFO_SIZE 4096
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static struct snd_pcm_hardware snd_cx88_digital_hw = {
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.info = SNDRV_PCM_INFO_MMAP |
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SNDRV_PCM_INFO_INTERLEAVED |
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SNDRV_PCM_INFO_BLOCK_TRANSFER |
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SNDRV_PCM_INFO_MMAP_VALID,
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.formats = SNDRV_PCM_FMTBIT_S16_LE,
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.rates = SNDRV_PCM_RATE_48000,
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.rate_min = 48000,
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.rate_max = 48000,
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.channels_min = 2,
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.channels_max = 2,
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/* Analog audio output will be full of clicks and pops if there
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are not exactly four lines in the SRAM FIFO buffer. */
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.period_bytes_min = DEFAULT_FIFO_SIZE/4,
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.period_bytes_max = DEFAULT_FIFO_SIZE/4,
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.periods_min = 1,
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.periods_max = 1024,
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.buffer_bytes_max = (1024*1024),
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};
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/*
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* audio pcm capture open callback
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*/
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static int snd_cx88_pcm_open(struct snd_pcm_substream *substream)
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{
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snd_cx88_card_t *chip = snd_pcm_substream_chip(substream);
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struct snd_pcm_runtime *runtime = substream->runtime;
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int err;
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err = snd_pcm_hw_constraint_pow2(runtime, 0, SNDRV_PCM_HW_PARAM_PERIODS);
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if (err < 0)
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goto _error;
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chip->substream = substream;
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runtime->hw = snd_cx88_digital_hw;
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if (cx88_sram_channels[SRAM_CH25].fifo_size != DEFAULT_FIFO_SIZE) {
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unsigned int bpl = cx88_sram_channels[SRAM_CH25].fifo_size / 4;
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bpl &= ~7; /* must be multiple of 8 */
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runtime->hw.period_bytes_min = bpl;
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runtime->hw.period_bytes_max = bpl;
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}
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return 0;
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_error:
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dprintk(1,"Error opening PCM!\n");
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return err;
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}
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/*
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* audio close callback
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*/
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static int snd_cx88_close(struct snd_pcm_substream *substream)
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{
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return 0;
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}
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/*
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* hw_params callback
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*/
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static int snd_cx88_hw_params(struct snd_pcm_substream * substream,
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struct snd_pcm_hw_params * hw_params)
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{
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snd_cx88_card_t *chip = snd_pcm_substream_chip(substream);
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struct videobuf_dmabuf *dma;
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struct cx88_buffer *buf;
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int ret;
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if (substream->runtime->dma_area) {
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dsp_buffer_free(chip);
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substream->runtime->dma_area = NULL;
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}
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chip->period_size = params_period_bytes(hw_params);
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chip->num_periods = params_periods(hw_params);
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chip->dma_size = chip->period_size * params_periods(hw_params);
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BUG_ON(!chip->dma_size);
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BUG_ON(chip->num_periods & (chip->num_periods-1));
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buf = videobuf_pci_alloc(sizeof(*buf));
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if (NULL == buf)
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return -ENOMEM;
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buf->vb.memory = V4L2_MEMORY_MMAP;
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buf->vb.field = V4L2_FIELD_NONE;
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buf->vb.width = chip->period_size;
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buf->bpl = chip->period_size;
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buf->vb.height = chip->num_periods;
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buf->vb.size = chip->dma_size;
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dma=videobuf_to_dma(&buf->vb);
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videobuf_dma_init(dma);
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ret = videobuf_dma_init_kernel(dma, PCI_DMA_FROMDEVICE,
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(PAGE_ALIGN(buf->vb.size) >> PAGE_SHIFT));
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if (ret < 0)
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goto error;
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ret = videobuf_pci_dma_map(chip->pci,dma);
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if (ret < 0)
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goto error;
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ret = cx88_risc_databuffer(chip->pci, &buf->risc, dma->sglist,
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buf->vb.width, buf->vb.height, 1);
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if (ret < 0)
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goto error;
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/* Loop back to start of program */
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buf->risc.jmp[0] = cpu_to_le32(RISC_JUMP|RISC_IRQ1|RISC_CNT_INC);
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buf->risc.jmp[1] = cpu_to_le32(buf->risc.dma);
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buf->vb.state = VIDEOBUF_PREPARED;
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chip->buf = buf;
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chip->dma_risc = dma;
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substream->runtime->dma_area = chip->dma_risc->vmalloc;
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substream->runtime->dma_bytes = chip->dma_size;
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substream->runtime->dma_addr = 0;
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return 0;
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error:
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kfree(buf);
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return ret;
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}
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/*
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* hw free callback
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*/
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static int snd_cx88_hw_free(struct snd_pcm_substream * substream)
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{
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snd_cx88_card_t *chip = snd_pcm_substream_chip(substream);
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if (substream->runtime->dma_area) {
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dsp_buffer_free(chip);
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substream->runtime->dma_area = NULL;
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}
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return 0;
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}
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/*
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* prepare callback
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*/
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static int snd_cx88_prepare(struct snd_pcm_substream *substream)
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{
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return 0;
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}
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/*
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* trigger callback
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*/
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static int snd_cx88_card_trigger(struct snd_pcm_substream *substream, int cmd)
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{
|
||||
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", __FUNCTION__,
|
||||
// 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, 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;
|
||||
}
|
||||
|
||||
/* 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 v, b;
|
||||
int changed = 0;
|
||||
u32 old;
|
||||
|
||||
b = value->value.integer.value[1] - value->value.integer.value[0];
|
||||
if (b < 0) {
|
||||
v = 0x3f - value->value.integer.value[0];
|
||||
b = (-b) | 0x40;
|
||||
} else {
|
||||
v = 0x3f - value->value.integer.value[1];
|
||||
}
|
||||
/* 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_write(AUD_VOL_CTL, (old & ~0x3f) | v);
|
||||
changed = 1;
|
||||
}
|
||||
if (cx_read(AUD_BAL_CTL) != 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 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 = "Playback 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_write(AUD_VOL_CTL, vol);
|
||||
ret = 1;
|
||||
}
|
||||
spin_unlock_irq(&chip->reg_lock);
|
||||
return ret;
|
||||
}
|
||||
|
||||
static struct snd_kcontrol_new snd_cx88_dac_switch = {
|
||||
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
|
||||
.name = "Playback Switch",
|
||||
.info = snd_ctl_boolean_mono_info,
|
||||
.get = snd_cx88_switch_get,
|
||||
.put = snd_cx88_switch_put,
|
||||
.private_value = (1<<8),
|
||||
};
|
||||
|
||||
static struct snd_kcontrol_new snd_cx88_source_switch = {
|
||||
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
|
||||
.name = "Capture Switch",
|
||||
.info = snd_ctl_boolean_mono_info,
|
||||
.get = snd_cx88_switch_get,
|
||||
.put = snd_cx88_switch_put,
|
||||
.private_value = (1<<6),
|
||||
};
|
||||
|
||||
/****************************************************************************
|
||||
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;
|
||||
unsigned char pci_lat;
|
||||
|
||||
*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_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;
|
||||
|
||||
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)
|
||||
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;
|
||||
|
||||
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 = 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:
|
||||
*/
|
||||
Loading…
Reference in New Issue
Block a user