diff options
Diffstat (limited to 'drivers/staging/line6/capture.c')
| -rw-r--r-- | drivers/staging/line6/capture.c | 59 |
1 files changed, 34 insertions, 25 deletions
diff --git a/drivers/staging/line6/capture.c b/drivers/staging/line6/capture.c index 1e3bb140633..e6ca631e3f7 100644 --- a/drivers/staging/line6/capture.c +++ b/drivers/staging/line6/capture.c @@ -9,6 +9,7 @@ * */ +#include <linux/slab.h> #include <sound/core.h> #include <sound/pcm.h> #include <sound/pcm_params.h> @@ -96,6 +97,7 @@ void line6_unlink_audio_in_urbs(struct snd_line6_pcm *line6pcm) if (test_bit(i, &line6pcm->active_urb_in)) { if (!test_and_set_bit(i, &line6pcm->unlink_urb_in)) { struct urb *u = line6pcm->urb_audio_in[i]; + usb_unlink_urb(u); } } @@ -106,7 +108,7 @@ void line6_unlink_audio_in_urbs(struct snd_line6_pcm *line6pcm) Wait until unlinking of all currently active capture URBs has been finished. */ -static void wait_clear_audio_in_urbs(struct snd_line6_pcm *line6pcm) +void line6_wait_clear_audio_in_urbs(struct snd_line6_pcm *line6pcm) { int timeout = HZ; unsigned int i; @@ -133,7 +135,7 @@ static void wait_clear_audio_in_urbs(struct snd_line6_pcm *line6pcm) void line6_unlink_wait_clear_audio_in_urbs(struct snd_line6_pcm *line6pcm) { line6_unlink_audio_in_urbs(line6pcm); - wait_clear_audio_in_urbs(line6pcm); + line6_wait_clear_audio_in_urbs(line6pcm); } /* @@ -147,7 +149,7 @@ void line6_capture_copy(struct snd_line6_pcm *line6pcm, char *fbuf, int fsize) const int bytes_per_frame = line6pcm->properties->bytes_per_frame; int frames = fsize / bytes_per_frame; - if (runtime == 0) + if (runtime == NULL) return; if (line6pcm->pos_in_done + frames > runtime->buffer_size) { @@ -156,6 +158,7 @@ void line6_capture_copy(struct snd_line6_pcm *line6pcm, char *fbuf, int fsize) copy two separate chunks. */ int len; + len = runtime->buffer_size - line6pcm->pos_in_done; if (len > 0) { @@ -192,6 +195,12 @@ void line6_capture_check_period(struct snd_line6_pcm *line6pcm, int length) } } +void line6_free_capture_buffer(struct snd_line6_pcm *line6pcm) +{ + kfree(line6pcm->buffer_in); + line6pcm->buffer_in = NULL; +} + /* * Callback for completed capture URB. */ @@ -209,16 +218,6 @@ static void audio_in_callback(struct urb *urb) if (urb == line6pcm->urb_audio_in[index]) break; -#ifdef CONFIG_LINE6_USB_DUMP_PCM - for (i = 0; i < LINE6_ISO_PACKETS; ++i) { - struct usb_iso_packet_descriptor *fout = - &urb->iso_frame_desc[i]; - line6_write_hexdump(line6pcm->line6, 'C', - urb->transfer_buffer + fout->offset, - fout->length); - } -#endif - spin_lock_irqsave(&line6pcm->lock_audio_in, flags); for (i = 0; i < LINE6_ISO_PACKETS; ++i) { @@ -243,18 +242,14 @@ static void audio_in_callback(struct urb *urb) length += fsize; /* the following assumes LINE6_ISO_PACKETS == 1: */ -#if LINE6_BACKUP_MONITOR_SIGNAL - memcpy(line6pcm->prev_fbuf, fbuf, fsize); -#else line6pcm->prev_fbuf = fbuf; -#endif line6pcm->prev_fsize = fsize; #ifdef CONFIG_LINE6_USB_IMPULSE_RESPONSE - if (!(line6pcm->flags & MASK_PCM_IMPULSE)) + if (!(line6pcm->flags & LINE6_BITS_PCM_IMPULSE)) #endif - if (test_bit(BIT_PCM_ALSA_CAPTURE, &line6pcm->flags) - && (fsize > 0)) + if (test_bit(LINE6_INDEX_PCM_ALSA_CAPTURE_STREAM, + &line6pcm->flags) && (fsize > 0)) line6_capture_copy(line6pcm, fbuf, fsize); } @@ -269,9 +264,10 @@ static void audio_in_callback(struct urb *urb) submit_audio_in_urb(line6pcm); #ifdef CONFIG_LINE6_USB_IMPULSE_RESPONSE - if (!(line6pcm->flags & MASK_PCM_IMPULSE)) + if (!(line6pcm->flags & LINE6_BITS_PCM_IMPULSE)) #endif - if (test_bit(BIT_PCM_ALSA_CAPTURE, &line6pcm->flags)) + if (test_bit(LINE6_INDEX_PCM_ALSA_CAPTURE_STREAM, + &line6pcm->flags)) line6_capture_check_period(line6pcm, length); } } @@ -319,10 +315,17 @@ static int snd_line6_capture_hw_params(struct snd_pcm_substream *substream, } /* -- [FD] end */ + ret = line6_pcm_acquire(line6pcm, LINE6_BIT_PCM_ALSA_CAPTURE_BUFFER); + + if (ret < 0) + return ret; + ret = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params)); - if (ret < 0) + if (ret < 0) { + line6_pcm_release(line6pcm, LINE6_BIT_PCM_ALSA_CAPTURE_BUFFER); return ret; + } line6pcm->period_in = params_period_bytes(hw_params); return 0; @@ -331,6 +334,9 @@ static int snd_line6_capture_hw_params(struct snd_pcm_substream *substream, /* hw_free capture callback */ static int snd_line6_capture_hw_free(struct snd_pcm_substream *substream) { + struct snd_line6_pcm *line6pcm = snd_pcm_substream_chip(substream); + + line6_pcm_release(line6pcm, LINE6_BIT_PCM_ALSA_CAPTURE_BUFFER); return snd_pcm_lib_free_pages(substream); } @@ -344,7 +350,8 @@ int snd_line6_capture_trigger(struct snd_line6_pcm *line6pcm, int cmd) #ifdef CONFIG_PM case SNDRV_PCM_TRIGGER_RESUME: #endif - err = line6_pcm_start(line6pcm, MASK_PCM_ALSA_CAPTURE); + err = line6_pcm_acquire(line6pcm, + LINE6_BIT_PCM_ALSA_CAPTURE_STREAM); if (err < 0) return err; @@ -355,7 +362,8 @@ int snd_line6_capture_trigger(struct snd_line6_pcm *line6pcm, int cmd) #ifdef CONFIG_PM case SNDRV_PCM_TRIGGER_SUSPEND: #endif - err = line6_pcm_stop(line6pcm, MASK_PCM_ALSA_CAPTURE); + err = line6_pcm_release(line6pcm, + LINE6_BIT_PCM_ALSA_CAPTURE_STREAM); if (err < 0) return err; @@ -374,6 +382,7 @@ static snd_pcm_uframes_t snd_line6_capture_pointer(struct snd_pcm_substream *substream) { struct snd_line6_pcm *line6pcm = snd_pcm_substream_chip(substream); + return line6pcm->pos_in_done; } |