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authorLinus Torvalds <torvalds@linux-foundation.org>2018-04-03 17:16:59 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2018-04-03 17:16:59 -0700
commitef1c4a6fa91bbbe9b09f770d28eba31a9edf770c (patch)
tree52f5d175031c553160d14890e876ffc5432d2467 /drivers/media/pci/solo6x10/solo6x10-g723.c
parentMerge tag 'kconfig-v4.17' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild (diff)
parentmedia: v4l2-ioctl: rename a temp var that stores _IOC_SIZE(cmd) (diff)
downloadlinux-dev-ef1c4a6fa91bbbe9b09f770d28eba31a9edf770c.tar.xz
linux-dev-ef1c4a6fa91bbbe9b09f770d28eba31a9edf770c.zip
Merge tag 'media/v4.17-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
Pull media updates from Mauro Carvalho Chehab: - new CEC pin injection code for testing purposes - DVB frontend cxd2099 promoted from staging - new platform driver for Sony cxd2880 DVB devices - new sensor drivers: mt9t112, ov2685, ov5695, ov772x, tda1997x, tw9910.c - removal of unused cx18 and ivtv alsa mixers - the reneseas-ceu driver doesn't depend on soc_camera anymore and moved from staging - removed the mantis_vp3028 driver, unused since 2009 - s5p-mfc: add support for version 10 of the MSP - added a decoder for imon protocol - atomisp: lots of cleanups - imx074 and mt9t031: don't depend on soc_camera anymore, being promoted from staging - added helper functions to better support DVB I2C binding - lots of driver improvements and cleanups * tag 'media/v4.17-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (438 commits) media: v4l2-ioctl: rename a temp var that stores _IOC_SIZE(cmd) media: fimc-capture: get rid of two warnings media: dvb-usb-v2: fix a missing dependency of I2C_MUX media: uvc: to the right check at uvc_ioctl_enum_framesizes() media: cec-core: fix a bug at cec_error_inj_write() media: tda9840: cleanup a warning media: tm6000: avoid casting just to print pointer address media: em28xx-input: improve error handling code media: zr364xx: avoid casting just to print pointer address media: vivid-radio-rx: add a cast to avoid a warning media: saa7134-alsa: don't use casts to print a buffer address media: solo6x10: get rid of an address space warning media: zoran: don't cast pointers to print them media: ir-kbd-i2c: change the if logic to avoid a warning media: ir-kbd-i2c: improve error handling code media: saa7134-input: improve error handling media: s2255drv: fix a casting warning media: ivtvfb: Cleanup some warnings media: videobuf-dma-sg: Fix a weird cast soc_camera: fix a weird cast on printk ...
Diffstat (limited to 'drivers/media/pci/solo6x10/solo6x10-g723.c')
-rw-r--r--drivers/media/pci/solo6x10/solo6x10-g723.c39
1 files changed, 24 insertions, 15 deletions
diff --git a/drivers/media/pci/solo6x10/solo6x10-g723.c b/drivers/media/pci/solo6x10/solo6x10-g723.c
index 81be1b8df758..2ac33b5cc454 100644
--- a/drivers/media/pci/solo6x10/solo6x10-g723.c
+++ b/drivers/media/pci/solo6x10/solo6x10-g723.c
@@ -223,9 +223,9 @@ static snd_pcm_uframes_t snd_solo_pcm_pointer(struct snd_pcm_substream *ss)
return idx * G723_FRAMES_PER_PAGE;
}
-static int __snd_solo_pcm_copy(struct snd_pcm_substream *ss,
- unsigned long pos, void *dst,
- unsigned long count, bool in_kernel)
+static int snd_solo_pcm_copy_user(struct snd_pcm_substream *ss, int channel,
+ unsigned long pos, void __user *dst,
+ unsigned long count)
{
struct solo_snd_pcm *solo_pcm = snd_pcm_substream_chip(ss);
struct solo_dev *solo_dev = solo_pcm->solo_dev;
@@ -242,10 +242,7 @@ static int __snd_solo_pcm_copy(struct snd_pcm_substream *ss,
if (err)
return err;
- if (in_kernel)
- memcpy(dst, solo_pcm->g723_buf, G723_PERIOD_BYTES);
- else if (copy_to_user((void __user *)dst,
- solo_pcm->g723_buf, G723_PERIOD_BYTES))
+ if (copy_to_user(dst, solo_pcm->g723_buf, G723_PERIOD_BYTES))
return -EFAULT;
dst += G723_PERIOD_BYTES;
}
@@ -253,18 +250,30 @@ static int __snd_solo_pcm_copy(struct snd_pcm_substream *ss,
return 0;
}
-static int snd_solo_pcm_copy_user(struct snd_pcm_substream *ss, int channel,
- unsigned long pos, void __user *dst,
- unsigned long count)
-{
- return __snd_solo_pcm_copy(ss, pos, (void *)dst, count, false);
-}
-
static int snd_solo_pcm_copy_kernel(struct snd_pcm_substream *ss, int channel,
unsigned long pos, void *dst,
unsigned long count)
{
- return __snd_solo_pcm_copy(ss, pos, dst, count, true);
+ struct solo_snd_pcm *solo_pcm = snd_pcm_substream_chip(ss);
+ struct solo_dev *solo_dev = solo_pcm->solo_dev;
+ int err, i;
+
+ for (i = 0; i < (count / G723_FRAMES_PER_PAGE); i++) {
+ int page = (pos / G723_FRAMES_PER_PAGE) + i;
+
+ err = solo_p2m_dma_t(solo_dev, 0, solo_pcm->g723_dma,
+ SOLO_G723_EXT_ADDR(solo_dev) +
+ (page * G723_PERIOD_BLOCK) +
+ (ss->number * G723_PERIOD_BYTES),
+ G723_PERIOD_BYTES, 0, 0);
+ if (err)
+ return err;
+
+ memcpy(dst, solo_pcm->g723_buf, G723_PERIOD_BYTES);
+ dst += G723_PERIOD_BYTES;
+ }
+
+ return 0;
}
static const struct snd_pcm_ops snd_solo_pcm_ops = {