From: Mauro Carvalho Chehab Date: Wed, 31 Dec 2008 12:37:33 +0000 (-0300) Subject: V4L/DVB (10163): em28xx: allocate adev together with struct em28xx dev X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=9baed99ee7a834b1f2599e13f219087f01c63f38;p=GitHub%2Fexynos8895%2Fandroid_kernel_samsung_universal8895.git V4L/DVB (10163): em28xx: allocate adev together with struct em28xx dev Some devices require different setups on struct_audio. Due to that, we may need to change some fields at dev.adev during device probe. So, this patch moves the dynamic memory allocation of adev at em28xx-alsa to the dynamic allocation of struct em28xx dev that happens during device probe. Signed-off-by: Mauro Carvalho Chehab --- diff --git a/drivers/media/video/em28xx/em28xx-audio.c b/drivers/media/video/em28xx/em28xx-audio.c index 15c03f0e69ad..94378ccb7505 100644 --- a/drivers/media/video/em28xx/em28xx-audio.c +++ b/drivers/media/video/em28xx/em28xx-audio.c @@ -62,9 +62,9 @@ static int em28xx_isoc_audio_deinit(struct em28xx *dev) dprintk("Stopping isoc\n"); for (i = 0; i < EM28XX_AUDIO_BUFS; i++) { - usb_unlink_urb(dev->adev->urb[i]); - usb_free_urb(dev->adev->urb[i]); - dev->adev->urb[i] = NULL; + usb_unlink_urb(dev->adev.urb[i]); + usb_free_urb(dev->adev.urb[i]); + dev->adev.urb[i] = NULL; } return 0; @@ -81,8 +81,8 @@ static void em28xx_audio_isocirq(struct urb *urb) unsigned int stride; struct snd_pcm_substream *substream; struct snd_pcm_runtime *runtime; - if (dev->adev->capture_pcm_substream) { - substream = dev->adev->capture_pcm_substream; + if (dev->adev.capture_pcm_substream) { + substream = dev->adev.capture_pcm_substream; runtime = substream->runtime; stride = runtime->frame_bits >> 3; @@ -95,7 +95,7 @@ static void em28xx_audio_isocirq(struct urb *urb) if (!length) continue; - oldptr = dev->adev->hwptr_done_capture; + oldptr = dev->adev.hwptr_done_capture; if (oldptr + length >= runtime->buffer_size) { unsigned int cnt = runtime->buffer_size - oldptr; @@ -110,16 +110,16 @@ static void em28xx_audio_isocirq(struct urb *urb) snd_pcm_stream_lock(substream); - dev->adev->hwptr_done_capture += length; - if (dev->adev->hwptr_done_capture >= + dev->adev.hwptr_done_capture += length; + if (dev->adev.hwptr_done_capture >= runtime->buffer_size) - dev->adev->hwptr_done_capture -= + dev->adev.hwptr_done_capture -= runtime->buffer_size; - dev->adev->capture_transfer_done += length; - if (dev->adev->capture_transfer_done >= + dev->adev.capture_transfer_done += length; + if (dev->adev.capture_transfer_done >= runtime->period_size) { - dev->adev->capture_transfer_done -= + dev->adev.capture_transfer_done -= runtime->period_size; period_elapsed = 1; } @@ -131,7 +131,7 @@ static void em28xx_audio_isocirq(struct urb *urb) } urb->status = 0; - if (dev->adev->shutdown) + if (dev->adev.shutdown) return; status = usb_submit_urb(urb, GFP_ATOMIC); @@ -154,17 +154,17 @@ static int em28xx_init_audio_isoc(struct em28xx *dev) struct urb *urb; int j, k; - dev->adev->transfer_buffer[i] = kmalloc(sb_size, GFP_ATOMIC); - if (!dev->adev->transfer_buffer[i]) + dev->adev.transfer_buffer[i] = kmalloc(sb_size, GFP_ATOMIC); + if (!dev->adev.transfer_buffer[i]) return -ENOMEM; - memset(dev->adev->transfer_buffer[i], 0x80, sb_size); + memset(dev->adev.transfer_buffer[i], 0x80, sb_size); urb = usb_alloc_urb(EM28XX_NUM_AUDIO_PACKETS, GFP_ATOMIC); if (!urb) { em28xx_errdev("usb_alloc_urb failed!\n"); for (j = 0; j < i; j++) { - usb_free_urb(dev->adev->urb[j]); - kfree(dev->adev->transfer_buffer[j]); + usb_free_urb(dev->adev.urb[j]); + kfree(dev->adev.transfer_buffer[j]); } return -ENOMEM; } @@ -173,7 +173,7 @@ static int em28xx_init_audio_isoc(struct em28xx *dev) urb->context = dev; urb->pipe = usb_rcvisocpipe(dev->udev, 0x83); urb->transfer_flags = URB_ISO_ASAP; - urb->transfer_buffer = dev->adev->transfer_buffer[i]; + urb->transfer_buffer = dev->adev.transfer_buffer[i]; urb->interval = 1; urb->complete = em28xx_audio_isocirq; urb->number_of_packets = EM28XX_NUM_AUDIO_PACKETS; @@ -185,11 +185,11 @@ static int em28xx_init_audio_isoc(struct em28xx *dev) urb->iso_frame_desc[j].length = EM28XX_AUDIO_MAX_PACKET_SIZE; } - dev->adev->urb[i] = urb; + dev->adev.urb[i] = urb; } for (i = 0; i < EM28XX_AUDIO_BUFS; i++) { - errCode = usb_submit_urb(dev->adev->urb[i], GFP_ATOMIC); + errCode = usb_submit_urb(dev->adev.urb[i], GFP_ATOMIC); if (errCode) { em28xx_isoc_audio_deinit(dev); @@ -202,16 +202,16 @@ static int em28xx_init_audio_isoc(struct em28xx *dev) static int em28xx_cmd(struct em28xx *dev, int cmd, int arg) { - dprintk("%s transfer\n", (dev->adev->capture_stream == STREAM_ON)? + dprintk("%s transfer\n", (dev->adev.capture_stream == STREAM_ON) ? "stop" : "start"); switch (cmd) { case EM28XX_CAPTURE_STREAM_EN: - if (dev->adev->capture_stream == STREAM_OFF && arg == 1) { - dev->adev->capture_stream = STREAM_ON; + if (dev->adev.capture_stream == STREAM_OFF && arg == 1) { + dev->adev.capture_stream = STREAM_ON; em28xx_init_audio_isoc(dev); - } else if (dev->adev->capture_stream == STREAM_ON && arg == 0) { - dev->adev->capture_stream = STREAM_OFF; + } else if (dev->adev.capture_stream == STREAM_ON && arg == 0) { + dev->adev.capture_stream = STREAM_OFF; em28xx_isoc_audio_deinit(dev); } else { printk(KERN_ERR "An underrun very likely occurred. " @@ -289,17 +289,17 @@ static int snd_em28xx_capture_open(struct snd_pcm_substream *substream) goto err; runtime->hw = snd_em28xx_hw_capture; - if (dev->alt == 0 && dev->adev->users == 0) { + if (dev->alt == 0 && dev->adev.users == 0) { int errCode; dev->alt = 7; errCode = usb_set_interface(dev->udev, 0, 7); dprintk("changing alternate number to 7\n"); } - dev->adev->users++; + dev->adev.users++; snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS); - dev->adev->capture_pcm_substream = substream; + dev->adev.capture_pcm_substream = substream; runtime->private_data = dev; return 0; @@ -311,7 +311,7 @@ err: static int snd_em28xx_pcm_close(struct snd_pcm_substream *substream) { struct em28xx *dev = snd_pcm_substream_chip(substream); - dev->adev->users--; + dev->adev.users--; dprintk("closing device\n"); @@ -320,10 +320,10 @@ static int snd_em28xx_pcm_close(struct snd_pcm_substream *substream) em28xx_audio_analog_set(dev); mutex_unlock(&dev->lock); - if (dev->adev->users == 0 && dev->adev->shutdown == 1) { - dprintk("audio users: %d\n", dev->adev->users); + if (dev->adev.users == 0 && dev->adev.shutdown == 1) { + dprintk("audio users: %d\n", dev->adev.users); dprintk("disabling audio stream!\n"); - dev->adev->shutdown = 0; + dev->adev.shutdown = 0; dprintk("released lock\n"); em28xx_cmd(dev, EM28XX_CAPTURE_STREAM_EN, 0); } @@ -356,7 +356,7 @@ static int snd_em28xx_hw_capture_free(struct snd_pcm_substream *substream) dprintk("Stop capture, if needed\n"); - if (dev->adev->capture_stream == STREAM_ON) + if (dev->adev.capture_stream == STREAM_ON) em28xx_cmd(dev, EM28XX_CAPTURE_STREAM_EN, 0); return 0; @@ -379,7 +379,7 @@ static int snd_em28xx_capture_trigger(struct snd_pcm_substream *substream, em28xx_cmd(dev, EM28XX_CAPTURE_STREAM_EN, 1); return 0; case SNDRV_PCM_TRIGGER_STOP: - dev->adev->shutdown = 1; + dev->adev.shutdown = 1; return 0; default: return -EINVAL; @@ -393,7 +393,7 @@ static snd_pcm_uframes_t snd_em28xx_capture_pointer(struct snd_pcm_substream snd_pcm_uframes_t hwptr_done; dev = snd_pcm_substream_chip(substream); - hwptr_done = dev->adev->hwptr_done_capture; + hwptr_done = dev->adev.hwptr_done_capture; return hwptr_done; } @@ -420,7 +420,7 @@ static struct snd_pcm_ops snd_em28xx_pcm_capture = { static int em28xx_audio_init(struct em28xx *dev) { - struct em28xx_audio *adev; + struct em28xx_audio *adev = &dev->adev; struct snd_pcm *pcm; struct snd_card *card; static int devnr; @@ -438,16 +438,9 @@ static int em28xx_audio_init(struct em28xx *dev) printk(KERN_INFO "em28xx-audio.c: Copyright (C) 2006 Markus " "Rechberger\n"); - adev = kzalloc(sizeof(*adev), GFP_KERNEL); - if (!adev) { - printk(KERN_ERR "em28xx-audio.c: out of memory\n"); - return -1; - } card = snd_card_new(index[devnr], "Em28xx Audio", THIS_MODULE, 0); - if (card == NULL) { - kfree(adev); + if (card == NULL) return -ENOMEM; - } spin_lock_init(&adev->slock); err = snd_pcm_new(card, "Em28xx Audio", 0, 0, 1, &pcm); @@ -471,7 +464,6 @@ static int em28xx_audio_init(struct em28xx *dev) } adev->sndcard = card; adev->udev = dev->udev; - dev->adev = adev; return 0; } @@ -488,10 +480,9 @@ static int em28xx_audio_fini(struct em28xx *dev) return 0; } - if (dev->adev) { - snd_card_free(dev->adev->sndcard); - kfree(dev->adev); - dev->adev = NULL; + if (dev->adev.sndcard) { + snd_card_free(dev->adev.sndcard); + dev->adev.sndcard = NULL; } return 0; diff --git a/drivers/media/video/em28xx/em28xx.h b/drivers/media/video/em28xx/em28xx.h index afc5f6d17e0f..6c6b94aa05b2 100644 --- a/drivers/media/video/em28xx/em28xx.h +++ b/drivers/media/video/em28xx/em28xx.h @@ -473,7 +473,7 @@ struct em28xx { unsigned long i2c_hash; /* i2c devicelist hash - for boards with generic ID */ - struct em28xx_audio *adev; + struct em28xx_audio adev; /* states */ enum em28xx_dev_state state;