/* * $Id: saa7134-alsa.c,v 1.1 2005/10/05 14:34:02 nsh Exp $ * * Support for audio capture * PCI function #1 of the saa7134 * * (c) 2005 Mauro Carvalho Chehab * (c) 2004 Gerd Knorr * (c) 2003 Clemens Ladisch * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ #include #include #include #include #include #include #include #include #include #include #include #include "compat.h" #include "saa7134.h" #include "saa7134-reg.h" #define dprintk(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 ****************************************************************************/ #define ANALOG_CLOCK 1792000 #define CLOCK_DIV_MIN 4 #define CLOCK_DIV_MAX 15 #define MAX_PCM_DEVICES 4 #define MAX_PCM_SUBSTREAMS 16 enum { DEVICE_DIGITAL, DEVICE_ANALOG }; /* These can be replaced after done */ #define MIXER_ADDR_LAST MAX_saa7134_INPUT struct saa7134_audio_dev { struct saa7134_core *core; struct saa7134_buffer *buf; struct saa7134_dmaqueue q; /* pci i/o */ struct pci_dev *pci; unsigned char pci_rev,pci_lat; /* audio controls */ int irq; int dig_rate; /* Digital sampling rate */ snd_card_t *card; spinlock_t reg_lock; unsigned int dma_size; unsigned int period_size; int mixer_volume[MIXER_ADDR_LAST+1][2]; int capture_source[MIXER_ADDR_LAST+1][2]; long opened; snd_pcm_substream_t *substream; }; typedef struct saa7134_audio_dev snd_saa7134_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}; #if 0 static int pcm_devs[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 1}; static int pcm_substreams[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 8}; static snd_saa7134_card_t *snd_dummy_cards[SNDRV_CARDS] = SNDRV_DEFAULT_PTR; #endif module_param_array(enable, bool, NULL, 0444); MODULE_PARM_DESC(enable, "Enable saa7134x soundcard. default enabled."); /**************************************************************************** Module macros ****************************************************************************/ MODULE_DESCRIPTION("ALSA driver module for saa7134 based TV cards"); MODULE_AUTHOR("Mauro Carvalho Chehab "); MODULE_LICENSE("GPL"); MODULE_SUPPORTED_DEVICE("{{Philips, saa7131E}," "{{Philips, saa7134}," "{{Philips, saa7133}"); static unsigned int debug = 0; module_param(debug,int,0644); MODULE_PARM_DESC(debug,"enable debug messages"); /**************************************************************************** Module specific funtions ****************************************************************************/ /* * BOARD Specific: Sets audio DMA */ int saa7134_start_audio_dma(snd_saa7134_card_t *chip) { struct saa7134_core *core = chip->core; return 0; } /* * BOARD Specific: Resets audio DMA */ int saa7134_stop_audio_dma(snd_saa7134_card_t *chip) { struct saa7134_core *core=chip->core; return 0; } #define MAX_IRQ_LOOP 10 static void saa713401_timeout(unsigned long data) { snd_saa7134_card_t *chip = (snd_saa7134_card_t *)data; } /* FIXME: Wrong values*/ static char *saa7134_aud_irqs[32] = { "y_risci1", "u_risci1", "v_risci1", "vbi_risc1", "y_risci2", "u_risci2", "v_risci2", "vbi_risc2", "y_oflow", "u_oflow", "v_oflow", "vbi_oflow", "y_sync", "u_sync", "v_sync", "vbi_sync", "opc_err", "par_err", "rip_err", "pci_abort", }; static void saa713401_aud_irq(snd_saa7134_card_t *chip) { struct saa7134_core *core = chip->core; } static irqreturn_t saa7134_irq(int irq, void *dev_id, struct pt_regs *regs) { snd_saa7134_card_t *chip = dev_id; struct saa7134_core *core = chip->core; } /**************************************************************************** ALSA PCM Interface ****************************************************************************/ /* * Digital hardware definition */ static snd_pcm_hardware_t snd_saa7134_digital_hw = { .info = SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED | SNDRV_PCM_INFO_BLOCK_TRANSFER | SNDRV_PCM_INFO_MMAP_VALID, .formats = SNDRV_PCM_FMTBIT_S16_LE, .rates = 0, /* set at runtime */ .channels_min = 2, .channels_max = 2, .buffer_bytes_max = 255 * 4092, .period_bytes_min = 32, .period_bytes_max = 4092, .periods_min = 2, .periods_max = 255, }; /* * Sets board to provide digital audio */ static int snd_saa7134_set_digital_hw(snd_saa7134_card_t *chip, snd_pcm_runtime_t *runtime) { return 0; } /* * audio open callback */ static int snd_saa7134_pcm_open(snd_pcm_substream_t *substream) { snd_saa7134_card_t *chip = snd_pcm_substream_chip(substream); snd_pcm_runtime_t *runtime = substream->runtime; int err; if (test_and_set_bit(0, &chip->opened)) return -EBUSY; err = snd_saa7134_set_digital_hw(chip, runtime); if (err < 0) goto _error; err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS); if (err < 0) goto _error; chip->substream = substream; return 0; _error: clear_bit(0, &chip->opened); smp_mb__after_clear_bit(); return err; } /* * audio close callback */ static int snd_saa7134_close(snd_pcm_substream_t *substream) { snd_saa7134_card_t *chip = snd_pcm_substream_chip(substream); chip->substream = NULL; clear_bit(0, &chip->opened); smp_mb__after_clear_bit(); return 0; } /* * hw_params callback */ static int snd_saa7134_hw_params(snd_pcm_substream_t * substream, snd_pcm_hw_params_t * hw_params) { return snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params)); } /* * hw free callback */ static int snd_saa7134_hw_free(snd_pcm_substream_t * substream) { return snd_pcm_lib_free_pages(substream); } /* * prepare callback */ static int snd_saa7134_prepare(snd_pcm_substream_t *substream) { snd_saa7134_card_t *chip = snd_pcm_substream_chip(substream); return 0; } /* * trigger callback */ static int snd_saa7134_card_trigger(snd_pcm_substream_t *substream, int cmd) { snd_saa7134_card_t *chip = snd_pcm_substream_chip(substream); switch (cmd) { case SNDRV_PCM_TRIGGER_START: return snd_saa7134_start(chip); case SNDRV_PCM_TRIGGER_STOP: return snd_saa7134_stop(chip); default: return -EINVAL; } } /* * pointer callback */ static snd_pcm_uframes_t snd_saa7134_pointer(snd_pcm_substream_t *substream) { // snd_saa7134_card_t *chip = snd_pcm_substream_chip(substream); // snd_pcm_runtime_t *runtime = substream->runtime; // return (snd_pcm_uframes_t)bytes_to_frames(runtime, chip->current_line * chip->line_bytes); } /* * operators */ static snd_pcm_ops_t snd_saa7134_pcm_ops = { .open = snd_saa7134_pcm_open, .close = snd_saa7134_close, .ioctl = snd_pcm_lib_ioctl, .hw_params = snd_saa7134_hw_params, .hw_free = snd_saa7134_hw_free, .prepare = snd_saa7134_prepare, .trigger = snd_saa7134_card_trigger, .pointer = snd_saa7134_pointer, .page = snd_pcm_sgbuf_ops_page, }; /* * create a PCM device */ static int __devinit snd_saa7134_pcm(snd_saa7134_card_t *chip, int device, char *name) { int err; snd_pcm_t *pcm; err = snd_pcm_new(chip->card, name, device, 0, 1, &pcm); if (err < 0) return err; pcm->private_data = chip; strcpy(pcm->name, name); snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_saa7134_pcm_ops); return snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG, snd_dma_pci_data(chip->pci), 128 * 1024, (255 * 4092 + 1023) & ~1023); } /**************************************************************************** CONTROL INTERFACE ****************************************************************************/ static int snd_saa7134_capture_volume_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *info) { info->type = SNDRV_CTL_ELEM_TYPE_INTEGER; info->count = 1; info->value.integer.min = 0; info->value.integer.max = 0x3f; return 0; } /* OK - TODO: test it */ static int snd_saa7134_capture_volume_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *value) { snd_saa7134_card_t *chip = snd_kcontrol_chip(kcontrol); struct saa7134_core *core=chip->core; return 0; } /* OK - TODO: test it */ static int snd_saa7134_capture_volume_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *value) { snd_saa7134_card_t *chip = snd_kcontrol_chip(kcontrol); struct saa7134_core *core=chip->core; return 0; } static snd_kcontrol_new_t snd_saa7134_capture_volume = { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = "Capture Volume", .info = snd_saa7134_capture_volume_info, .get = snd_saa7134_capture_volume_get, .put = snd_saa7134_capture_volume_put, }; /* *************************************** */ #if 0 static int snd_saa7134_capture_source_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *info) { static char *texts[3] = {"TV Tuner", "FM", "Mic/Line"}; info->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; info->count = 1; info->value.enumerated.items = 3; if (info->value.enumerated.item > 2) info->value.enumerated.item = 2; strcpy(info->value.enumerated.name, texts[info->value.enumerated.item]); return 0; } static int snd_saa7134_capture_source_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *value) { snd_saa7134_card_t *chip = snd_kcontrol_chip(kcontrol); /*#if 0*/ value->value.enumerated.item[0] = (chip->reg_control & CTL_A_SEL_MASK) >> CTL_A_SEL_SHIFT; /*#endif*/ return 0; } static int snd_saa7134_capture_source_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *value) { snd_saa7134_card_t *chip = snd_kcontrol_chip(kcontrol); u32 old_control; int changed; return changed; } static snd_kcontrol_new_t snd_saa7134_capture_source = { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = "Capture Source", .info = snd_saa7134_capture_source_info, .get = snd_saa7134_capture_source_get, .put = snd_saa7134_capture_source_put, }; #endif /**************************************************************************** Basic Flow for Sound Devices ****************************************************************************/ /* * PCI ID Table - 14f1:8801 and 14f1:8811 means function 1: Audio * Only boards with eeprom and byte 1 at eeprom=1 have it */ struct pci_device_id saa7134_audio_pci_tbl[] = { {0x14f1,0x8801,PCI_ANY_ID,PCI_ANY_ID,0,0,0}, {0x14f1,0x8811,PCI_ANY_ID,PCI_ANY_ID,0,0,0}, {0, } }; MODULE_DEVICE_TABLE(pci, saa7134_audio_pci_tbl); /* * Chip-specific destructor */ static int snd_saa7134_free(snd_saa7134_card_t *chip) { #if 0 if (chip->mmio) { snd_bt87x_stop(chip); if (chip->irq >= 0) synchronize_irq(chip->irq); iounmap(chip->mmio); } #endif if (chip->irq >= 0) free_irq(chip->irq, chip); /* free memory */ saa7134_core_put(chip->core,chip->pci); pci_release_regions(chip->pci); pci_disable_device(chip->pci); kfree(chip); return 0; } /* * Component Destructor */ static int snd_saa7134_dev_free(snd_device_t *device) { snd_saa7134_card_t *chip = device->device_data; return snd_saa7134_free(chip); } /* * Alsa Constructor - Component probe */ static int devno=0; static int __devinit snd_saa7134_create(snd_card_t *card, struct pci_dev *pci, snd_saa7134_card_t **rchip) { snd_saa7134_card_t *chip; struct saa7134_core *core; return 0; } static int __devinit saa7134_audio_initdev(struct pci_dev *pci, const struct pci_device_id *pci_id) { snd_card_t *card; snd_saa7134_card_t *chip; int err; if (devno >= SNDRV_CARDS) return (-ENODEV); if (!enable[devno]) { ++devno; return (-ENOENT); } card = snd_card_new(index[devno], id[devno], THIS_MODULE, 0); if (!card) return (-ENOMEM); err = snd_saa7134_create(card, pci, &chip); if (err < 0) return (err); /* err = snd_saa7134_pcm(chip, DEVICE_DIGITAL, "saa7134 Digital"); if (err < 0) goto fail_free; */ err = snd_ctl_add(card, snd_ctl_new1(&snd_saa7134_capture_volume, chip)); if (err < 0) { snd_card_free(card); return (err); } strcpy (card->driver, "saa7134_ALSA"); sprintf(card->shortname, "Saa7134 %x", pci->device); sprintf(card->longname, "%s at %#lx", card->shortname, pci_resource_start(pci, 0)); strcpy (card->mixername, "saa7134"); dprintk (0, "%s/%i: Alsa support for saa7134x boards\n", card->driver,devno); err = snd_card_register(card); if (err < 0) { snd_card_free(card); return (err); } pci_set_drvdata(pci,card); devno++; return 0; } /* * ALSA destructor */ static void __devexit saa7134_audio_finidev(struct pci_dev *pci) { snd_card_free(pci_get_drvdata(pci)); pci_set_drvdata(pci, NULL); devno--; } /* * PCI driver definition */ static struct pci_driver saa7134_audio_pci_driver = { .name = "saa7134_audio", .id_table = saa7134_audio_pci_tbl, .probe = saa7134_audio_initdev, .remove = saa7134_audio_finidev, SND_PCI_PM_CALLBACKS }; /**************************************************************************** LINUX MODULE INIT ****************************************************************************/ /* * module init */ static int saa7134_audio_init(void) { printk(KERN_INFO "saa7134x alsa driver version %d.%d.%d loaded\n", (saa7134_VERSION_CODE >> 16) & 0xff, (saa7134_VERSION_CODE >> 8) & 0xff, saa7134_VERSION_CODE & 0xff); #ifdef SNAPSHOT printk(KERN_INFO "saa7134x: snapshot date %04d-%02d-%02d\n", SNAPSHOT/10000, (SNAPSHOT/100)%100, SNAPSHOT%100); #endif return pci_module_init(&saa7134_audio_pci_driver); } /* * module remove */ static void saa7134_audio_fini(void) { pci_unregister_driver(&saa7134_audio_pci_driver); } module_init(saa7134_audio_init); module_exit(saa7134_audio_fini); /* ----------------------------------------------------------- */ /* * Local variables: * c-basic-offset: 8 * End: */