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authorHans Verkuil <hans.verkuil@cisco.com>2014-12-23 12:11:48 (GMT)
committerMauro Carvalho Chehab <mchehab@osg.samsung.com>2015-01-29 21:13:58 (GMT)
commit3f7a3f6ecf3f8bb144617a190aef3e0dd258078d (patch)
tree6677e1b6d6881339e02ecabb408908ca5c0e5b76 /drivers/staging/media/tlg2300/pd-alsa.c
parent08272db62a92c5b72033c332ced5f631bd9176de (diff)
[media] tlg2300: remove deprecated staging driver
This driver hasn't been tested in a long, long time. The company that made this chip has gone bust many years ago and hardware using this chip is next to impossible to find. This driver needs to be converted to newer media frameworks but due to the lack of hardware that's going to be impossible. Since cheap alternatives are easily available, there is little point in keeping this driver alive. This driver is already deprecated, so now remove it altogether. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Cc: Huang Shijie <shijie8@gmail.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Diffstat (limited to 'drivers/staging/media/tlg2300/pd-alsa.c')
-rw-r--r--drivers/staging/media/tlg2300/pd-alsa.c337
1 files changed, 0 insertions, 337 deletions
diff --git a/drivers/staging/media/tlg2300/pd-alsa.c b/drivers/staging/media/tlg2300/pd-alsa.c
deleted file mode 100644
index dd8fe10..0000000
--- a/drivers/staging/media/tlg2300/pd-alsa.c
+++ /dev/null
@@ -1,337 +0,0 @@
-#include <linux/kernel.h>
-#include <linux/usb.h>
-#include <linux/init.h>
-#include <linux/sound.h>
-#include <linux/spinlock.h>
-#include <linux/soundcard.h>
-#include <linux/vmalloc.h>
-#include <linux/proc_fs.h>
-#include <linux/module.h>
-#include <linux/gfp.h>
-#include <sound/core.h>
-#include <sound/pcm.h>
-#include <sound/pcm_params.h>
-#include <sound/info.h>
-#include <sound/initval.h>
-#include <sound/control.h>
-#include <media/v4l2-common.h>
-#include "pd-common.h"
-#include "vendorcmds.h"
-
-static void complete_handler_audio(struct urb *urb);
-#define AUDIO_EP (0x83)
-#define AUDIO_BUF_SIZE (512)
-#define PERIOD_SIZE (1024 * 8)
-#define PERIOD_MIN (4)
-#define PERIOD_MAX PERIOD_MIN
-
-static struct snd_pcm_hardware snd_pd_hw_capture = {
- .info = SNDRV_PCM_INFO_BLOCK_TRANSFER |
- SNDRV_PCM_INFO_MMAP |
- SNDRV_PCM_INFO_INTERLEAVED |
- 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,
- .buffer_bytes_max = PERIOD_SIZE * PERIOD_MIN,
- .period_bytes_min = PERIOD_SIZE,
- .period_bytes_max = PERIOD_SIZE,
- .periods_min = PERIOD_MIN,
- .periods_max = PERIOD_MAX,
- /*
- .buffer_bytes_max = 62720 * 8,
- .period_bytes_min = 64,
- .period_bytes_max = 12544,
- .periods_min = 2,
- .periods_max = 98
- */
-};
-
-static int snd_pd_capture_open(struct snd_pcm_substream *substream)
-{
- struct poseidon *p = snd_pcm_substream_chip(substream);
- struct poseidon_audio *pa = &p->audio;
- struct snd_pcm_runtime *runtime = substream->runtime;
-
- if (!p)
- return -ENODEV;
- pa->users++;
- pa->card_close = 0;
- pa->capture_pcm_substream = substream;
- runtime->private_data = p;
-
- runtime->hw = snd_pd_hw_capture;
- snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS);
- usb_autopm_get_interface(p->interface);
- kref_get(&p->kref);
- return 0;
-}
-
-static int snd_pd_pcm_close(struct snd_pcm_substream *substream)
-{
- struct poseidon *p = snd_pcm_substream_chip(substream);
- struct poseidon_audio *pa = &p->audio;
-
- pa->users--;
- pa->card_close = 1;
- usb_autopm_put_interface(p->interface);
- kref_put(&p->kref, poseidon_delete);
- return 0;
-}
-
-static int snd_pd_hw_capture_params(struct snd_pcm_substream *substream,
- struct snd_pcm_hw_params *hw_params)
-{
- struct snd_pcm_runtime *runtime = substream->runtime;
- unsigned int size;
-
- size = params_buffer_bytes(hw_params);
- if (runtime->dma_area) {
- if (runtime->dma_bytes > size)
- return 0;
- vfree(runtime->dma_area);
- }
- runtime->dma_area = vmalloc(size);
- if (!runtime->dma_area)
- return -ENOMEM;
- else
- runtime->dma_bytes = size;
- return 0;
-}
-
-static int audio_buf_free(struct poseidon *p)
-{
- struct poseidon_audio *pa = &p->audio;
- int i;
-
- for (i = 0; i < AUDIO_BUFS; i++)
- if (pa->urb_array[i])
- usb_kill_urb(pa->urb_array[i]);
- free_all_urb_generic(pa->urb_array, AUDIO_BUFS);
- logpm();
- return 0;
-}
-
-static int snd_pd_hw_capture_free(struct snd_pcm_substream *substream)
-{
- struct poseidon *p = snd_pcm_substream_chip(substream);
-
- logpm();
- audio_buf_free(p);
- return 0;
-}
-
-static int snd_pd_prepare(struct snd_pcm_substream *substream)
-{
- return 0;
-}
-
-#define AUDIO_TRAILER_SIZE (16)
-static inline void handle_audio_data(struct urb *urb, int *period_elapsed)
-{
- struct poseidon_audio *pa = urb->context;
- struct snd_pcm_runtime *runtime = pa->capture_pcm_substream->runtime;
-
- int stride = runtime->frame_bits >> 3;
- int len = urb->actual_length / stride;
- unsigned char *cp = urb->transfer_buffer;
- unsigned int oldptr = pa->rcv_position;
-
- if (urb->actual_length == AUDIO_BUF_SIZE - 4)
- len -= (AUDIO_TRAILER_SIZE / stride);
-
- /* do the copy */
- if (oldptr + len >= runtime->buffer_size) {
- unsigned int cnt = runtime->buffer_size - oldptr;
-
- memcpy(runtime->dma_area + oldptr * stride, cp, cnt * stride);
- memcpy(runtime->dma_area, (cp + cnt * stride),
- (len * stride - cnt * stride));
- } else
- memcpy(runtime->dma_area + oldptr * stride, cp, len * stride);
-
- /* update the statas */
- snd_pcm_stream_lock(pa->capture_pcm_substream);
- pa->rcv_position += len;
- if (pa->rcv_position >= runtime->buffer_size)
- pa->rcv_position -= runtime->buffer_size;
-
- pa->copied_position += (len);
- if (pa->copied_position >= runtime->period_size) {
- pa->copied_position -= runtime->period_size;
- *period_elapsed = 1;
- }
- snd_pcm_stream_unlock(pa->capture_pcm_substream);
-}
-
-static void complete_handler_audio(struct urb *urb)
-{
- struct poseidon_audio *pa = urb->context;
- struct snd_pcm_substream *substream = pa->capture_pcm_substream;
- int period_elapsed = 0;
- int ret;
-
- if (1 == pa->card_close || pa->capture_stream != STREAM_ON)
- return;
-
- if (urb->status != 0) {
- /*if (urb->status == -ESHUTDOWN)*/
- return;
- }
-
- if (substream) {
- if (urb->actual_length) {
- handle_audio_data(urb, &period_elapsed);
- if (period_elapsed)
- snd_pcm_period_elapsed(substream);
- }
- }
-
- ret = usb_submit_urb(urb, GFP_ATOMIC);
- if (ret < 0)
- log("audio urb failed (errcod = %i)", ret);
- return;
-}
-
-static int fire_audio_urb(struct poseidon *p)
-{
- int i, ret = 0;
- struct poseidon_audio *pa = &p->audio;
-
- alloc_bulk_urbs_generic(pa->urb_array, AUDIO_BUFS,
- p->udev, AUDIO_EP,
- AUDIO_BUF_SIZE, GFP_ATOMIC,
- complete_handler_audio, pa);
-
- for (i = 0; i < AUDIO_BUFS; i++) {
- ret = usb_submit_urb(pa->urb_array[i], GFP_KERNEL);
- if (ret)
- log("urb err : %d", ret);
- }
- log();
- return ret;
-}
-
-static int snd_pd_capture_trigger(struct snd_pcm_substream *substream, int cmd)
-{
- struct poseidon *p = snd_pcm_substream_chip(substream);
- struct poseidon_audio *pa = &p->audio;
-
- if (debug_mode)
- log("cmd %d, audio stat : %d\n", cmd, pa->capture_stream);
-
- switch (cmd) {
- case SNDRV_PCM_TRIGGER_RESUME:
- case SNDRV_PCM_TRIGGER_START:
- if (pa->capture_stream == STREAM_ON)
- return 0;
-
- pa->rcv_position = pa->copied_position = 0;
- pa->capture_stream = STREAM_ON;
-
- if (in_hibernation(p))
- return 0;
- fire_audio_urb(p);
- return 0;
-
- case SNDRV_PCM_TRIGGER_SUSPEND:
- pa->capture_stream = STREAM_SUSPEND;
- return 0;
- case SNDRV_PCM_TRIGGER_STOP:
- pa->capture_stream = STREAM_OFF;
- return 0;
- default:
- return -EINVAL;
- }
-}
-
-static snd_pcm_uframes_t
-snd_pd_capture_pointer(struct snd_pcm_substream *substream)
-{
- struct poseidon *p = snd_pcm_substream_chip(substream);
- struct poseidon_audio *pa = &p->audio;
- return pa->rcv_position;
-}
-
-static struct page *snd_pcm_pd_get_page(struct snd_pcm_substream *subs,
- unsigned long offset)
-{
- void *pageptr = subs->runtime->dma_area + offset;
- return vmalloc_to_page(pageptr);
-}
-
-static struct snd_pcm_ops pcm_capture_ops = {
- .open = snd_pd_capture_open,
- .close = snd_pd_pcm_close,
- .ioctl = snd_pcm_lib_ioctl,
- .hw_params = snd_pd_hw_capture_params,
- .hw_free = snd_pd_hw_capture_free,
- .prepare = snd_pd_prepare,
- .trigger = snd_pd_capture_trigger,
- .pointer = snd_pd_capture_pointer,
- .page = snd_pcm_pd_get_page,
-};
-
-#ifdef CONFIG_PM
-int pm_alsa_suspend(struct poseidon *p)
-{
- logpm(p);
- audio_buf_free(p);
- return 0;
-}
-
-int pm_alsa_resume(struct poseidon *p)
-{
- logpm(p);
- fire_audio_urb(p);
- return 0;
-}
-#endif
-
-int poseidon_audio_init(struct poseidon *p)
-{
- struct poseidon_audio *pa = &p->audio;
- struct snd_card *card;
- struct snd_pcm *pcm;
- int ret;
-
- ret = snd_card_new(&p->interface->dev, -1, "Telegent",
- THIS_MODULE, 0, &card);
- if (ret != 0)
- return ret;
-
- ret = snd_pcm_new(card, "poseidon audio", 0, 0, 1, &pcm);
- if (ret < 0) {
- snd_card_free(card);
- return ret;
- }
- snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &pcm_capture_ops);
- pcm->info_flags = 0;
- pcm->private_data = p;
- strcpy(pcm->name, "poseidon audio capture");
-
- strcpy(card->driver, "ALSA driver");
- strcpy(card->shortname, "poseidon Audio");
- strcpy(card->longname, "poseidon ALSA Audio");
-
- if (snd_card_register(card)) {
- snd_card_free(card);
- return -ENOMEM;
- }
- pa->card = card;
- return 0;
-}
-
-int poseidon_audio_free(struct poseidon *p)
-{
- struct poseidon_audio *pa = &p->audio;
-
- if (pa->card)
- snd_card_free(pa->card);
- return 0;
-}

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