From 31554ae599a8ff6854bf8ecbedc1946c64854388 Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Sun, 25 May 2008 11:21:27 -0300 Subject: [PATCH] V4L/DVB (7931): cx18: allow for simultaneous digital and analog capture The HVR-1600 can do both analog and digital capture at the same time. Due to a driver bug -EBUSY would be returned when attempting to setup an analog capture while a digital capture was already in progress. Separate the two internally. Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/cx18/cx18-controls.c | 6 +++--- drivers/media/video/cx18/cx18-driver.c | 2 +- drivers/media/video/cx18/cx18-driver.h | 3 ++- drivers/media/video/cx18/cx18-fileops.c | 10 +++++----- drivers/media/video/cx18/cx18-ioctl.c | 12 ++++++------ drivers/media/video/cx18/cx18-streams.c | 16 ++++++++++------ 6 files changed, 27 insertions(+), 22 deletions(-) diff --git a/drivers/media/video/cx18/cx18-controls.c b/drivers/media/video/cx18/cx18-controls.c index 2bdac5ebbb0d..87cf41021665 100644 --- a/drivers/media/video/cx18/cx18-controls.c +++ b/drivers/media/video/cx18/cx18-controls.c @@ -159,7 +159,7 @@ static int cx18_setup_vbi_fmt(struct cx18 *cx, enum v4l2_mpeg_stream_vbi_fmt fmt { if (!(cx->v4l2_cap & V4L2_CAP_SLICED_VBI_CAPTURE)) return -EINVAL; - if (atomic_read(&cx->capturing) > 0) + if (atomic_read(&cx->ana_capturing) > 0) return -EBUSY; /* First try to allocate sliced VBI buffers if needed. */ @@ -235,7 +235,7 @@ int cx18_control_ioctls(struct cx18 *cx, unsigned int cmd, void *arg) CX18_DEBUG_IOCTL("VIDIOC_S_EXT_CTRLS\n"); if (c->ctrl_class == V4L2_CTRL_CLASS_MPEG) { struct cx2341x_mpeg_params p = cx->params; - int err = cx2341x_ext_ctrls(&p, atomic_read(&cx->capturing), arg, cmd); + int err = cx2341x_ext_ctrls(&p, atomic_read(&cx->ana_capturing), arg, cmd); if (err) return err; @@ -295,7 +295,7 @@ int cx18_control_ioctls(struct cx18 *cx, unsigned int cmd, void *arg) CX18_DEBUG_IOCTL("VIDIOC_TRY_EXT_CTRLS\n"); if (c->ctrl_class == V4L2_CTRL_CLASS_MPEG) return cx2341x_ext_ctrls(&cx->params, - atomic_read(&cx->capturing), arg, cmd); + atomic_read(&cx->ana_capturing), arg, cmd); return -EINVAL; } diff --git a/drivers/media/video/cx18/cx18-driver.c b/drivers/media/video/cx18/cx18-driver.c index 0dd4e0529970..472f88e64199 100644 --- a/drivers/media/video/cx18/cx18-driver.c +++ b/drivers/media/video/cx18/cx18-driver.c @@ -889,7 +889,7 @@ static void cx18_remove(struct pci_dev *pci_dev) /* Stop all captures */ CX18_DEBUG_INFO("Stopping all streams\n"); - if (atomic_read(&cx->capturing) > 0) + if (atomic_read(&cx->tot_capturing) > 0) cx18_stop_all_captures(cx); /* Interrupts */ diff --git a/drivers/media/video/cx18/cx18-driver.h b/drivers/media/video/cx18/cx18-driver.h index a2a6c58d12fe..9c6a53477a1b 100644 --- a/drivers/media/video/cx18/cx18-driver.h +++ b/drivers/media/video/cx18/cx18-driver.h @@ -380,7 +380,8 @@ struct cx18 { int stream_buf_size[CX18_MAX_STREAMS]; /* Stream buffer size */ struct cx18_stream streams[CX18_MAX_STREAMS]; /* Stream data */ unsigned long i_flags; /* global cx18 flags */ - atomic_t capturing; /* count number of active capture streams */ + atomic_t ana_capturing; /* count number of active analog capture streams */ + atomic_t tot_capturing; /* total count number of active capture streams */ spinlock_t lock; /* lock access to this struct */ int search_pack_header; diff --git a/drivers/media/video/cx18/cx18-fileops.c b/drivers/media/video/cx18/cx18-fileops.c index 0b3141db174b..d0d7888f269a 100644 --- a/drivers/media/video/cx18/cx18-fileops.c +++ b/drivers/media/video/cx18/cx18-fileops.c @@ -318,7 +318,7 @@ static ssize_t cx18_read(struct cx18_stream *s, char __user *ubuf, size_t tot_written = 0; int single_frame = 0; - if (atomic_read(&cx->capturing) == 0 && s->id == -1) { + if (atomic_read(&cx->ana_capturing) == 0 && s->id == -1) { /* shouldn't happen */ CX18_DEBUG_WARN("Stream %s not initialized before read\n", s->name); @@ -581,7 +581,7 @@ int cx18_v4l2_close(struct inode *inode, struct file *filp) cx18_call_i2c_clients(cx, VIDIOC_S_STD, &cx->std); /* Select correct audio input (i.e. TV tuner or Line in) */ cx18_audio_set_io(cx); - if (atomic_read(&cx->capturing) > 0) { + if (atomic_read(&cx->ana_capturing) > 0) { /* Undo video mute */ cx18_vapi(cx, CX18_CPU_SET_VIDEO_MUTE, 2, s->handle, cx->params.video_mute | @@ -627,7 +627,7 @@ static int cx18_serialized_open(struct cx18_stream *s, struct file *filp) } if (!test_bit(CX18_F_I_RADIO_USER, &cx->i_flags)) { - if (atomic_read(&cx->capturing) > 0) { + if (atomic_read(&cx->ana_capturing) > 0) { /* switching to radio while capture is in progress is not polite */ cx18_release_stream(s); @@ -694,7 +694,7 @@ int cx18_v4l2_open(struct inode *inode, struct file *filp) void cx18_mute(struct cx18 *cx) { - if (atomic_read(&cx->capturing)) + if (atomic_read(&cx->ana_capturing)) cx18_vapi(cx, CX18_CPU_SET_AUDIO_MUTE, 2, cx18_find_handle(cx), 1); CX18_DEBUG_INFO("Mute\n"); @@ -702,7 +702,7 @@ void cx18_mute(struct cx18 *cx) void cx18_unmute(struct cx18 *cx) { - if (atomic_read(&cx->capturing)) { + if (atomic_read(&cx->ana_capturing)) { cx18_msleep_timeout(100, 0); cx18_vapi(cx, CX18_CPU_SET_MISC_PARAMETERS, 2, cx18_find_handle(cx), 12); diff --git a/drivers/media/video/cx18/cx18-ioctl.c b/drivers/media/video/cx18/cx18-ioctl.c index dbdcb86ec5aa..4151f1e5493f 100644 --- a/drivers/media/video/cx18/cx18-ioctl.c +++ b/drivers/media/video/cx18/cx18-ioctl.c @@ -247,7 +247,7 @@ static int cx18_try_or_set_fmt(struct cx18 *cx, int streamtype, if (!set_fmt || (cx->params.width == w && cx->params.height == h)) return 0; - if (atomic_read(&cx->capturing) > 0) + if (atomic_read(&cx->ana_capturing) > 0) return -EBUSY; cx->params.width = w; @@ -264,7 +264,7 @@ static int cx18_try_or_set_fmt(struct cx18 *cx, int streamtype, if (fmt->type == V4L2_BUF_TYPE_VBI_CAPTURE) { if (set_fmt && streamtype == CX18_ENC_STREAM_TYPE_VBI && cx->vbi.sliced_in->service_set && - atomic_read(&cx->capturing) > 0) + atomic_read(&cx->ana_capturing) > 0) return -EBUSY; if (set_fmt) { cx->vbi.sliced_in->service_set = 0; @@ -293,7 +293,7 @@ static int cx18_try_or_set_fmt(struct cx18 *cx, int streamtype, return 0; if (set == 0) return -EINVAL; - if (atomic_read(&cx->capturing) > 0 && cx->vbi.sliced_in->service_set == 0) + if (atomic_read(&cx->ana_capturing) > 0 && cx->vbi.sliced_in->service_set == 0) return -EBUSY; cx18_av_cmd(cx, VIDIOC_S_FMT, fmt); memcpy(cx->vbi.sliced_in, vbifmt, sizeof(*cx->vbi.sliced_in)); @@ -581,7 +581,7 @@ int cx18_v4l2_ioctls(struct cx18 *cx, struct file *filp, unsigned cmd, void *arg break; if (test_bit(CX18_F_I_RADIO_USER, &cx->i_flags) || - atomic_read(&cx->capturing) > 0) { + atomic_read(&cx->ana_capturing) > 0) { /* Switching standard would turn off the radio or mess with already running streams, prevent that by returning EBUSY. */ @@ -677,7 +677,7 @@ int cx18_v4l2_ioctls(struct cx18 *cx, struct file *filp, unsigned cmd, void *arg enc->flags = 0; if (try) return 0; - if (!atomic_read(&cx->capturing)) + if (!atomic_read(&cx->ana_capturing)) return -EPERM; if (test_and_set_bit(CX18_F_I_ENC_PAUSED, &cx->i_flags)) return 0; @@ -689,7 +689,7 @@ int cx18_v4l2_ioctls(struct cx18 *cx, struct file *filp, unsigned cmd, void *arg enc->flags = 0; if (try) return 0; - if (!atomic_read(&cx->capturing)) + if (!atomic_read(&cx->ana_capturing)) return -EPERM; if (!test_and_clear_bit(CX18_F_I_ENC_PAUSED, &cx->i_flags)) return 0; diff --git a/drivers/media/video/cx18/cx18-streams.c b/drivers/media/video/cx18/cx18-streams.c index dee6cc988090..5a065869401c 100644 --- a/drivers/media/video/cx18/cx18-streams.c +++ b/drivers/media/video/cx18/cx18-streams.c @@ -444,7 +444,7 @@ int cx18_start_v4l2_encode_stream(struct cx18_stream *s) s->handle = data[0]; cx18_vapi(cx, CX18_CPU_SET_CHANNEL_TYPE, 2, s->handle, captype); - if (atomic_read(&cx->capturing) == 0 && !ts) { + if (atomic_read(&cx->ana_capturing) == 0 && !ts) { /* Stuff from Windows, we don't know what it is */ cx18_vapi(cx, CX18_CPU_SET_VER_CROP_LINE, 2, s->handle, 0); cx18_vapi(cx, CX18_CPU_SET_MISC_PARAMETERS, 3, s->handle, 3, 1); @@ -467,7 +467,7 @@ int cx18_start_v4l2_encode_stream(struct cx18_stream *s) cx2341x_update(cx, cx18_api_func, NULL, &cx->params); } - if (atomic_read(&cx->capturing) == 0) { + if (atomic_read(&cx->tot_capturing) == 0) { clear_bit(CX18_F_I_EOS, &cx->i_flags); write_reg(7, CX18_DSP0_INTERRUPT_MASK); } @@ -493,7 +493,9 @@ int cx18_start_v4l2_encode_stream(struct cx18_stream *s) } /* you're live! sit back and await interrupts :) */ - atomic_inc(&cx->capturing); + if (!ts) + atomic_inc(&cx->ana_capturing); + atomic_inc(&cx->tot_capturing); return 0; } @@ -524,7 +526,7 @@ int cx18_stop_v4l2_encode_stream(struct cx18_stream *s, int gop_end) CX18_DEBUG_INFO("Stop Capture\n"); - if (atomic_read(&cx->capturing) == 0) + if (atomic_read(&cx->tot_capturing) == 0) return 0; if (s->type == CX18_ENC_STREAM_TYPE_MPG) @@ -538,7 +540,9 @@ int cx18_stop_v4l2_encode_stream(struct cx18_stream *s, int gop_end) CX18_INFO("ignoring gop_end: not (yet?) supported by the firmware\n"); } - atomic_dec(&cx->capturing); + if (s->type != CX18_ENC_STREAM_TYPE_TS) + atomic_dec(&cx->ana_capturing); + atomic_dec(&cx->tot_capturing); /* Clear capture and no-read bits */ clear_bit(CX18_F_S_STREAMING, &s->s_flags); @@ -546,7 +550,7 @@ int cx18_stop_v4l2_encode_stream(struct cx18_stream *s, int gop_end) cx18_vapi(cx, CX18_DESTROY_TASK, 1, s->handle); s->handle = 0xffffffff; - if (atomic_read(&cx->capturing) > 0) + if (atomic_read(&cx->tot_capturing) > 0) return 0; write_reg(5, CX18_DSP0_INTERRUPT_MASK); -- GitLab