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path: root/drivers/media/video/tm6000/tm6000-alsa.c
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Diffstat (limited to 'drivers/media/video/tm6000/tm6000-alsa.c')
-rw-r--r--drivers/media/video/tm6000/tm6000-alsa.c528
1 files changed, 0 insertions, 528 deletions
diff --git a/drivers/media/video/tm6000/tm6000-alsa.c b/drivers/media/video/tm6000/tm6000-alsa.c
deleted file mode 100644
index bd07ec707956..000000000000
--- a/drivers/media/video/tm6000/tm6000-alsa.c
+++ /dev/null
@@ -1,528 +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 <linux/vmalloc.h>
-
-#include <linux/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)
-
-/****************************************************************************
- Module global static vars
- ****************************************************************************/
-
-static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */
-
-static bool 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;
-
- dprintk(1, "Starting audio DMA\n");
-
- /* Enables audio */
- tm6000_set_reg_mask(core, TM6010_REQ07_RCC_ACTIVE_IF, 0x40, 0x40);
-
- tm6000_set_audio_bitrate(core, 48000);
-
- return 0;
-}
-
-/*
- * BOARD Specific: Resets audio DMA
- */
-static int _tm6000_stop_audio_dma(struct snd_tm6000_card *chip)
-{
- struct tm6000_core *core = chip->core;
-
- dprintk(1, "Stopping audio DMA\n");
-
- /* Disables audio */
- tm6000_set_reg_mask(core, TM6010_REQ07_RCC_ACTIVE_IF, 0x00, 0x40);
-
- return 0;
-}
-
-static void dsp_buffer_free(struct snd_pcm_substream *substream)
-{
- struct snd_tm6000_card *chip = snd_pcm_substream_chip(substream);
-
- dprintk(2, "Freeing buffer\n");
-
- vfree(substream->runtime->dma_area);
- substream->runtime->dma_area = NULL;
- substream->runtime->dma_bytes = 0;
-}
-
-static int dsp_buffer_alloc(struct snd_pcm_substream *substream, int size)
-{
- struct snd_tm6000_card *chip = snd_pcm_substream_chip(substream);
-
- dprintk(2, "Allocating buffer\n");
-
- if (substream->runtime->dma_area) {
- if (substream->runtime->dma_bytes > size)
- return 0;
-
- dsp_buffer_free(substream);
- }
-
- substream->runtime->dma_area = vmalloc(size);
- if (!substream->runtime->dma_area)
- return -ENOMEM;
-
- substream->runtime->dma_bytes = size;
-
- 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_BATCH |
- 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_CONTINUOUS | SNDRV_PCM_RATE_KNOT,
- .rate_min = 48000,
- .rate_max = 48000,
- .channels_min = 2,
- .channels_max = 2,
- .period_bytes_min = 64,
- .period_bytes_max = 12544,
- .periods_min = 2,
- .periods_max = 98,
- .buffer_bytes_max = 62720 * 8,
-};
-
-/*
- * 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;
- snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS);
-
- return 0;
-_error:
- dprintk(1, "Error opening PCM!\n");
- return err;
-}
-
-/*
- * audio close callback
- */
-static int snd_tm6000_close(struct snd_pcm_substream *substream)
-{
- struct snd_tm6000_card *chip = snd_pcm_substream_chip(substream);
- struct tm6000_core *core = chip->core;
-
- if (atomic_read(&core->stream_started) > 0) {
- atomic_set(&core->stream_started, 0);
- schedule_work(&core->wq_trigger);
- }
-
- return 0;
-}
-
-static int tm6000_fillbuf(struct tm6000_core *core, char *buf, int size)
-{
- struct snd_tm6000_card *chip = core->adev;
- struct snd_pcm_substream *substream = chip->substream;
- struct snd_pcm_runtime *runtime;
- int period_elapsed = 0;
- unsigned int stride, buf_pos;
- int length;
-
- if (atomic_read(&core->stream_started) == 0)
- return 0;
-
- if (!size || !substream) {
- dprintk(1, "substream was NULL\n");
- return -EINVAL;
- }
-
- runtime = substream->runtime;
- if (!runtime || !runtime->dma_area) {
- dprintk(1, "runtime was NULL\n");
- return -EINVAL;
- }
-
- buf_pos = chip->buf_pos;
- stride = runtime->frame_bits >> 3;
-
- if (stride == 0) {
- dprintk(1, "stride is zero\n");
- return -EINVAL;
- }
-
- length = size / stride;
- if (length == 0) {
- dprintk(1, "%s: length was zero\n", __func__);
- return -EINVAL;
- }
-
- dprintk(1, "Copying %d bytes at %p[%d] - buf size=%d x %d\n", size,
- runtime->dma_area, buf_pos,
- (unsigned int)runtime->buffer_size, stride);
-
- if (buf_pos + length >= runtime->buffer_size) {
- unsigned int cnt = runtime->buffer_size - buf_pos;
- memcpy(runtime->dma_area + buf_pos * stride, buf, cnt * stride);
- memcpy(runtime->dma_area, buf + cnt * stride,
- length * stride - cnt * stride);
- } else
- memcpy(runtime->dma_area + buf_pos * stride, buf,
- length * stride);
-
- snd_pcm_stream_lock(substream);
-
- chip->buf_pos += length;
- if (chip->buf_pos >= runtime->buffer_size)
- chip->buf_pos -= runtime->buffer_size;
-
- chip->period_pos += length;
- if (chip->period_pos >= runtime->period_size) {
- chip->period_pos -= runtime->period_size;
- period_elapsed = 1;
- }
-
- snd_pcm_stream_unlock(substream);
-
- if (period_elapsed)
- snd_pcm_period_elapsed(substream);
-
- return 0;
-}
-
-/*
- * hw_params callback
- */
-static int snd_tm6000_hw_params(struct snd_pcm_substream *substream,
- struct snd_pcm_hw_params *hw_params)
-{
- int size, rc;
-
- size = params_period_bytes(hw_params) * params_periods(hw_params);
-
- rc = dsp_buffer_alloc(substream, size);
- if (rc < 0)
- return rc;
-
- 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);
- struct tm6000_core *core = chip->core;
-
- if (atomic_read(&core->stream_started) > 0) {
- atomic_set(&core->stream_started, 0);
- schedule_work(&core->wq_trigger);
- }
-
- dsp_buffer_free(substream);
- return 0;
-}
-
-/*
- * prepare callback
- */
-static int snd_tm6000_prepare(struct snd_pcm_substream *substream)
-{
- struct snd_tm6000_card *chip = snd_pcm_substream_chip(substream);
-
- chip->buf_pos = 0;
- chip->period_pos = 0;
-
- return 0;
-}
-
-
-/*
- * trigger callback
- */
-static void audio_trigger(struct work_struct *work)
-{
- struct tm6000_core *core = container_of(work, struct tm6000_core,
- wq_trigger);
- struct snd_tm6000_card *chip = core->adev;
-
- if (atomic_read(&core->stream_started)) {
- dprintk(1, "starting capture");
- _tm6000_start_audio_dma(chip);
- } else {
- dprintk(1, "stopping capture");
- _tm6000_stop_audio_dma(chip);
- }
-}
-
-static int snd_tm6000_card_trigger(struct snd_pcm_substream *substream, int cmd)
-{
- struct snd_tm6000_card *chip = snd_pcm_substream_chip(substream);
- struct tm6000_core *core = chip->core;
- int err = 0;
-
- switch (cmd) {
- case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: /* fall through */
- case SNDRV_PCM_TRIGGER_RESUME: /* fall through */
- case SNDRV_PCM_TRIGGER_START:
- atomic_set(&core->stream_started, 1);
- break;
- case SNDRV_PCM_TRIGGER_PAUSE_PUSH: /* fall through */
- case SNDRV_PCM_TRIGGER_SUSPEND: /* fall through */
- case SNDRV_PCM_TRIGGER_STOP:
- atomic_set(&core->stream_started, 0);
- break;
- default:
- err = -EINVAL;
- break;
- }
- schedule_work(&core->wq_trigger);
-
- 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);
-
- return chip->buf_pos;
-}
-
-static struct page *snd_pcm_get_vmalloc_page(struct snd_pcm_substream *subs,
- unsigned long offset)
-{
- void *pageptr = subs->runtime->dma_area + offset;
-
- return vmalloc_to_page(pageptr);
-}
-
-/*
- * 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,
- .page = snd_pcm_get_vmalloc_page,
-};
-
-/*
- * create a PCM device
- */
-
-/* FIXME: Control interface - How to control volume/mute? */
-
-/****************************************************************************
- Basic Flow for Sound Devices
- ****************************************************************************/
-
-/*
- * Alsa Constructor - Component probe
- */
-static int tm6000_audio_init(struct tm6000_core *dev)
-{
- struct snd_card *card;
- struct snd_tm6000_card *chip;
- int rc;
- static int devnr;
- char component[14];
- struct snd_pcm *pcm;
-
- if (!dev)
- return 0;
-
- if (devnr >= SNDRV_CARDS)
- return -ENODEV;
-
- if (!enable[devnr])
- return -ENOENT;
-
- rc = snd_card_create(index[devnr], "tm6000", THIS_MODULE, 0, &card);
- if (rc < 0) {
- snd_printk(KERN_ERR "cannot create card instance %d\n", devnr);
- return rc;
- }
- strcpy(card->driver, "tm6000-alsa");
- strcpy(card->shortname, "TM5600/60x0");
- sprintf(card->longname, "TM5600/60x0 Audio at bus %d device %d",
- dev->udev->bus->busnum, dev->udev->devnum);
-
- sprintf(component, "USB%04x:%04x",
- le16_to_cpu(dev->udev->descriptor.idVendor),
- le16_to_cpu(dev->udev->descriptor.idProduct));
- snd_component_add(card, component);
- snd_card_set_dev(card, &dev->udev->dev);
-
- chip = kzalloc(sizeof(struct snd_tm6000_card), GFP_KERNEL);
- if (!chip) {
- rc = -ENOMEM;
- goto error;
- }
-
- chip->core = dev;
- chip->card = card;
- dev->adev = chip;
- spin_lock_init(&chip->reg_lock);
-
- rc = snd_pcm_new(card, "TM6000 Audio", 0, 0, 1, &pcm);
- if (rc < 0)
- goto error_chip;
-
- pcm->info_flags = 0;
- pcm->private_data = chip;
- strcpy(pcm->name, "Trident TM5600/60x0");
-
- snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_tm6000_pcm_ops);
-
- INIT_WORK(&dev->wq_trigger, audio_trigger);
- rc = snd_card_register(card);
- if (rc < 0)
- goto error_chip;
-
- dprintk(1, "Registered audio driver for %s\n", card->longname);
-
- return 0;
-
-error_chip:
- kfree(chip);
- dev->adev = NULL;
-error:
- snd_card_free(card);
- return rc;
-}
-
-static int tm6000_audio_fini(struct tm6000_core *dev)
-{
- struct snd_tm6000_card *chip = dev->adev;
-
- if (!dev)
- return 0;
-
- if (!chip)
- return 0;
-
- if (!chip->card)
- return 0;
-
- snd_card_free(chip->card);
- chip->card = NULL;
- kfree(chip);
- dev->adev = NULL;
-
- return 0;
-}
-
-static struct tm6000_ops audio_ops = {
- .type = TM6000_AUDIO,
- .name = "TM6000 Audio Extension",
- .init = tm6000_audio_init,
- .fini = tm6000_audio_fini,
- .fillbuf = tm6000_fillbuf,
-};
-
-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);