diff options
Diffstat (limited to 'drivers/staging/tm6000/tm6000-alsa.c')
| -rw-r--r-- | drivers/staging/tm6000/tm6000-alsa.c | 438 |
1 files changed, 0 insertions, 438 deletions
diff --git a/drivers/staging/tm6000/tm6000-alsa.c b/drivers/staging/tm6000/tm6000-alsa.c deleted file mode 100644 index 273e26ede65..00000000000 --- a/drivers/staging/tm6000/tm6000-alsa.c +++ /dev/null @@ -1,438 +0,0 @@ -/* - * - * Support for audio capture for tm5600/6000/6010 - * (c) 2007-2008 Mauro Carvalho Chehab <mchehab@redhat.com> - * - * Based on cx88-alsa.c - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ - -#include <linux/module.h> -#include <linux/init.h> -#include <linux/device.h> -#include <linux/interrupt.h> -#include <linux/usb.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 "tm6000.h" -#include "tm6000-regs.h" - -#undef dprintk - -#define dprintk(level, fmt, arg...) do { \ - if (debug >= level) \ - printk(KERN_INFO "%s/1: " fmt, chip->core->name , ## arg); \ - } while (0) - -/**************************************************************************** - Data type declarations - Can be moded to a header file later - ****************************************************************************/ - -struct snd_tm6000_card { - struct snd_card *card; - - spinlock_t reg_lock; - - atomic_t count; - - unsigned int period_size; - unsigned int num_periods; - - struct tm6000_core *core; - struct tm6000_buffer *buf; - - int bufsize; - - struct snd_pcm_substream *substream; -}; - - -/**************************************************************************** - 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}; - -module_param_array(enable, bool, NULL, 0444); -MODULE_PARM_DESC(enable, "Enable tm6000x soundcard. default enabled."); - -module_param_array(index, int, NULL, 0444); -MODULE_PARM_DESC(index, "Index value for tm6000x capture interface(s)."); - - -/**************************************************************************** - Module macros - ****************************************************************************/ - -MODULE_DESCRIPTION("ALSA driver module for tm5600/tm6000/tm6010 based TV cards"); -MODULE_AUTHOR("Mauro Carvalho Chehab <mchehab@redhat.com>"); -MODULE_LICENSE("GPL"); -MODULE_SUPPORTED_DEVICE("{{Trident,tm5600}," - "{{Trident,tm6000}," - "{{Trident,tm6010}"); -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 _tm6000_start_audio_dma(struct snd_tm6000_card *chip) -{ - struct tm6000_core *core = chip->core; - int val; - - /* Enables audio */ - val = tm6000_get_reg(core, TM6010_REQ07_RCC_ACTIVE_VIDEO_IF, 0x0); - val |= 0x20; - tm6000_set_reg(core, TM6010_REQ07_RCC_ACTIVE_VIDEO_IF, val); - - tm6000_set_reg(core, TM6010_REQ08_R01_A_INIT, 0x80); - - return 0; -} - -/* - * BOARD Specific: Resets audio DMA - */ -static int _tm6000_stop_audio_dma(struct snd_tm6000_card *chip) -{ - struct tm6000_core *core = chip->core; - int val; - dprintk(1, "Stopping audio DMA\n"); - - /* Enables audio */ - val = tm6000_get_reg(core, TM6010_REQ07_RCC_ACTIVE_VIDEO_IF, 0x0); - val &= ~0x20; - tm6000_set_reg(core, TM6010_REQ07_RCC_ACTIVE_VIDEO_IF, val); - - tm6000_set_reg(core, TM6010_REQ08_R01_A_INIT, 0); - - return 0; -} - -static int dsp_buffer_free(struct snd_tm6000_card *chip) -{ - BUG_ON(!chip->bufsize); - - dprintk(2, "Freeing buffer\n"); - - /* FIXME: Frees buffer */ - - chip->bufsize = 0; - - return 0; -} - -/**************************************************************************** - ALSA PCM Interface - ****************************************************************************/ - -/* - * Digital hardware definition - */ -#define DEFAULT_FIFO_SIZE 4096 - -static struct snd_pcm_hardware snd_tm6000_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_44100 | SNDRV_PCM_RATE_48000, - .rate_min = 44100, - .rate_max = 48000, - .channels_min = 2, - .channels_max = 2, - .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_tm6000_pcm_open(struct snd_pcm_substream *substream) -{ - struct snd_tm6000_card *chip = snd_pcm_substream_chip(substream); - struct snd_pcm_runtime *runtime = substream->runtime; - int err; - - err = snd_pcm_hw_constraint_pow2(runtime, 0, - SNDRV_PCM_HW_PARAM_PERIODS); - if (err < 0) - goto _error; - - chip->substream = substream; - - runtime->hw = snd_tm6000_digital_hw; - - return 0; -_error: - dprintk(1, "Error opening PCM!\n"); - return err; -} - -/* - * audio close callback - */ -static int snd_tm6000_close(struct snd_pcm_substream *substream) -{ - return 0; -} - -/* - * hw_params callback - */ -static int snd_tm6000_hw_params(struct snd_pcm_substream *substream, - struct snd_pcm_hw_params *hw_params) -{ - struct snd_tm6000_card *chip = snd_pcm_substream_chip(substream); - - 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->bufsize = chip->period_size * params_periods(hw_params); - - BUG_ON(!chip->bufsize); - - dprintk(1, "Setting buffer\n"); - - /* FIXME: Allocate buffer for audio */ - - - return 0; -} - -/* - * hw free callback - */ -static int snd_tm6000_hw_free(struct snd_pcm_substream *substream) -{ - - struct snd_tm6000_card *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_tm6000_prepare(struct snd_pcm_substream *substream) -{ - return 0; -} - - -/* - * trigger callback - */ -static int snd_tm6000_card_trigger(struct snd_pcm_substream *substream, int cmd) -{ - struct snd_tm6000_card *chip = snd_pcm_substream_chip(substream); - int err; - - spin_lock(&chip->reg_lock); - - switch (cmd) { - case SNDRV_PCM_TRIGGER_START: - err = _tm6000_start_audio_dma(chip); - break; - case SNDRV_PCM_TRIGGER_STOP: - err = _tm6000_stop_audio_dma(chip); - break; - default: - err = -EINVAL; - break; - } - - spin_unlock(&chip->reg_lock); - - return err; -} - -/* - * pointer callback - */ -static snd_pcm_uframes_t snd_tm6000_pointer(struct snd_pcm_substream *substream) -{ - struct snd_tm6000_card *chip = snd_pcm_substream_chip(substream); - struct snd_pcm_runtime *runtime = substream->runtime; - u16 count; - - count = atomic_read(&chip->count); - - return runtime->period_size * (count & (runtime->periods-1)); -} - -/* - * operators - */ -static struct snd_pcm_ops snd_tm6000_pcm_ops = { - .open = snd_tm6000_pcm_open, - .close = snd_tm6000_close, - .ioctl = snd_pcm_lib_ioctl, - .hw_params = snd_tm6000_hw_params, - .hw_free = snd_tm6000_hw_free, - .prepare = snd_tm6000_prepare, - .trigger = snd_tm6000_card_trigger, - .pointer = snd_tm6000_pointer, -}; - -/* - * create a PCM device - */ -static int __devinit snd_tm6000_pcm(struct snd_tm6000_card *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_tm6000_pcm_ops); - - return 0; -} - -/* FIXME: Control interface - How to control volume/mute? */ - -/**************************************************************************** - Basic Flow for Sound Devices - ****************************************************************************/ - -/* - * Alsa Constructor - Component probe - */ - -int tm6000_audio_init(struct tm6000_core *dev, int idx) -{ - struct snd_card *card; - struct snd_tm6000_card *chip; - int rc, len; - char component[14]; - - if (idx >= SNDRV_CARDS) - return -ENODEV; - - if (!enable[idx]) - return -ENOENT; - - rc = snd_card_create(index[idx], id[idx], THIS_MODULE, 0, &card); - if (rc < 0) { - snd_printk(KERN_ERR "cannot create card instance %d\n", idx); - return rc; - } - - chip = kzalloc(sizeof(*chip), GFP_KERNEL); - if (!chip) { - rc = -ENOMEM; - goto error; - } - - chip->core = dev; - chip->card = card; - - strcpy(card->driver, "tm6000-alsa"); - sprintf(component, "USB%04x:%04x", - le16_to_cpu(dev->udev->descriptor.idVendor), - le16_to_cpu(dev->udev->descriptor.idProduct)); - snd_component_add(card, component); - - if (dev->udev->descriptor.iManufacturer) - len = usb_string(dev->udev, - dev->udev->descriptor.iManufacturer, - card->longname, sizeof(card->longname)); - else - len = 0; - - if (len > 0) - strlcat(card->longname, " ", sizeof(card->longname)); - - strlcat(card->longname, card->shortname, sizeof(card->longname)); - - len = strlcat(card->longname, " at ", sizeof(card->longname)); - - if (len < sizeof(card->longname)) - usb_make_path(dev->udev, card->longname + len, - sizeof(card->longname) - len); - - strlcat(card->longname, - dev->udev->speed == USB_SPEED_LOW ? ", low speed" : - dev->udev->speed == USB_SPEED_FULL ? ", full speed" : - ", high speed", - sizeof(card->longname)); - - rc = snd_tm6000_pcm(chip, 0, "tm6000 Digital"); - if (rc < 0) - goto error; - - rc = snd_card_register(card); - if (rc < 0) - goto error; - - - return 0; - -error: - snd_card_free(card); - return rc; -} - -static int tm6000_audio_fini(struct tm6000_core *dev) -{ - return 0; -} - -struct tm6000_ops audio_ops = { - .id = TM6000_AUDIO, - .name = "TM6000 Audio Extension", - .init = tm6000_audio_init, - .fini = tm6000_audio_fini, -}; - -static int __init tm6000_alsa_register(void) -{ - return tm6000_register_extension(&audio_ops); -} - -static void __exit tm6000_alsa_unregister(void) -{ - tm6000_unregister_extension(&audio_ops); -} - -module_init(tm6000_alsa_register); -module_exit(tm6000_alsa_unregister); |