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path: root/drivers/media/video/cx231xx
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-rw-r--r--drivers/media/video/cx231xx/Kconfig6
-rw-r--r--drivers/media/video/cx231xx/cx231xx-audio.c24
-rw-r--r--drivers/media/video/cx231xx/cx231xx-cards.c86
-rw-r--r--drivers/media/video/cx231xx/cx231xx-core.c7
-rw-r--r--drivers/media/video/cx231xx/cx231xx-dvb.c4
-rw-r--r--drivers/media/video/cx231xx/cx231xx-input.c11
-rw-r--r--drivers/media/video/cx231xx/cx231xx-vbi.c4
-rw-r--r--drivers/media/video/cx231xx/cx231xx-video.c14
-rw-r--r--drivers/media/video/cx231xx/cx231xx.h2
9 files changed, 88 insertions, 70 deletions
diff --git a/drivers/media/video/cx231xx/Kconfig b/drivers/media/video/cx231xx/Kconfig
index ae85a7a..446f692 100644
--- a/drivers/media/video/cx231xx/Kconfig
+++ b/drivers/media/video/cx231xx/Kconfig
@@ -40,10 +40,10 @@ config VIDEO_CX231XX_ALSA
config VIDEO_CX231XX_DVB
tristate "DVB/ATSC Support for Cx231xx based TV cards"
- depends on VIDEO_CX231XX && DVB_CORE
+ depends on VIDEO_CX231XX && DVB_CORE && DVB_CAPTURE_DRIVERS
select VIDEOBUF_DVB
- select MEDIA_TUNER_XC5000 if !DVB_FE_CUSTOMISE
- select MEDIA_TUNER_NXP18271 if !DVB_FE_CUSTOMISE
+ select MEDIA_TUNER_XC5000 if !MEDIA_TUNER_CUSTOMISE
+ select MEDIA_TUNER_TDA18271 if !MEDIA_TUNER_CUSTOMISE
select DVB_MB86A20S if !DVB_FE_CUSTOMISE
---help---
diff --git a/drivers/media/video/cx231xx/cx231xx-audio.c b/drivers/media/video/cx231xx/cx231xx-audio.c
index 30d13c1..a2c2b7d 100644
--- a/drivers/media/video/cx231xx/cx231xx-audio.c
+++ b/drivers/media/video/cx231xx/cx231xx-audio.c
@@ -111,6 +111,9 @@ static void cx231xx_audio_isocirq(struct urb *urb)
struct snd_pcm_substream *substream;
struct snd_pcm_runtime *runtime;
+ if (dev->state & DEV_DISCONNECTED)
+ return;
+
switch (urb->status) {
case 0: /* success */
case -ETIMEDOUT: /* NAK */
@@ -196,6 +199,9 @@ static void cx231xx_audio_bulkirq(struct urb *urb)
struct snd_pcm_substream *substream;
struct snd_pcm_runtime *runtime;
+ if (dev->state & DEV_DISCONNECTED)
+ return;
+
switch (urb->status) {
case 0: /* success */
case -ETIMEDOUT: /* NAK */
@@ -273,6 +279,9 @@ static int cx231xx_init_audio_isoc(struct cx231xx *dev)
cx231xx_info("%s: Starting ISO AUDIO transfers\n", __func__);
+ if (dev->state & DEV_DISCONNECTED)
+ return -ENODEV;
+
sb_size = CX231XX_ISO_NUM_AUDIO_PACKETS * dev->adev.max_pkt_size;
for (i = 0; i < CX231XX_AUDIO_BUFS; i++) {
@@ -298,7 +307,7 @@ static int cx231xx_init_audio_isoc(struct cx231xx *dev)
urb->context = dev;
urb->pipe = usb_rcvisocpipe(dev->udev,
dev->adev.end_point_addr);
- urb->transfer_flags = URB_ISO_ASAP;
+ urb->transfer_flags = URB_ISO_ASAP | URB_NO_TRANSFER_DMA_MAP;
urb->transfer_buffer = dev->adev.transfer_buffer[i];
urb->interval = 1;
urb->complete = cx231xx_audio_isocirq;
@@ -331,6 +340,9 @@ static int cx231xx_init_audio_bulk(struct cx231xx *dev)
cx231xx_info("%s: Starting BULK AUDIO transfers\n", __func__);
+ if (dev->state & DEV_DISCONNECTED)
+ return -ENODEV;
+
sb_size = CX231XX_NUM_AUDIO_PACKETS * dev->adev.max_pkt_size;
for (i = 0; i < CX231XX_AUDIO_BUFS; i++) {
@@ -356,7 +368,7 @@ static int cx231xx_init_audio_bulk(struct cx231xx *dev)
urb->context = dev;
urb->pipe = usb_rcvbulkpipe(dev->udev,
dev->adev.end_point_addr);
- urb->transfer_flags = 0;
+ urb->transfer_flags = URB_NO_TRANSFER_DMA_MAP;
urb->transfer_buffer = dev->adev.transfer_buffer[i];
urb->complete = cx231xx_audio_bulkirq;
urb->transfer_buffer_length = sb_size;
@@ -432,6 +444,11 @@ static int snd_cx231xx_capture_open(struct snd_pcm_substream *substream)
return -ENODEV;
}
+ if (dev->state & DEV_DISCONNECTED) {
+ cx231xx_errdev("Can't open. the device was removed.\n");
+ return -ENODEV;
+ }
+
/* Sets volume, mute, etc */
dev->mute = 0;
@@ -571,6 +588,9 @@ static int snd_cx231xx_capture_trigger(struct snd_pcm_substream *substream,
struct cx231xx *dev = snd_pcm_substream_chip(substream);
int retval;
+ if (dev->state & DEV_DISCONNECTED)
+ return -ENODEV;
+
spin_lock(&dev->adev.slock);
switch (cmd) {
case SNDRV_PCM_TRIGGER_START:
diff --git a/drivers/media/video/cx231xx/cx231xx-cards.c b/drivers/media/video/cx231xx/cx231xx-cards.c
index 60b021e..919ed77 100644
--- a/drivers/media/video/cx231xx/cx231xx-cards.c
+++ b/drivers/media/video/cx231xx/cx231xx-cards.c
@@ -843,25 +843,34 @@ void cx231xx_release_resources(struct cx231xx *dev)
cx231xx_remove_from_devlist(dev);
+ cx231xx_ir_exit(dev);
+
/* Release I2C buses */
cx231xx_dev_uninit(dev);
- cx231xx_ir_exit(dev);
+ /* delete v4l2 device */
+ v4l2_device_unregister(&dev->v4l2_dev);
usb_put_dev(dev->udev);
/* Mark device as unused */
- cx231xx_devused &= ~(1 << dev->devno);
+ clear_bit(dev->devno, &cx231xx_devused);
+
+ kfree(dev->video_mode.alt_max_pkt_size);
+ kfree(dev->vbi_mode.alt_max_pkt_size);
+ kfree(dev->sliced_cc_mode.alt_max_pkt_size);
+ kfree(dev->ts1_mode.alt_max_pkt_size);
+ kfree(dev);
+ dev = NULL;
}
/*
* cx231xx_init_dev()
* allocates and inits the device structs, registers i2c bus and v4l device
*/
-static int cx231xx_init_dev(struct cx231xx **devhandle, struct usb_device *udev,
+static int cx231xx_init_dev(struct cx231xx *dev, struct usb_device *udev,
int minor)
{
- struct cx231xx *dev = *devhandle;
int retval = -ENOMEM;
int errCode;
unsigned int maxh, maxw;
@@ -1016,7 +1025,6 @@ static int cx231xx_usb_probe(struct usb_interface *interface,
int i, isoc_pipe = 0;
char *speed;
char descr[255] = "";
- struct usb_interface *lif = NULL;
struct usb_interface_assoc_descriptor *assoc_desc;
udev = usb_get_dev(interface_to_usbdev(interface));
@@ -1030,21 +1038,21 @@ static int cx231xx_usb_probe(struct usb_interface *interface,
return -ENODEV;
/* Check to see next free device and mark as used */
- nr = find_first_zero_bit(&cx231xx_devused, CX231XX_MAXBOARDS);
- cx231xx_devused |= 1 << nr;
-
- if (nr >= CX231XX_MAXBOARDS) {
- cx231xx_err(DRIVER_NAME
- ": Supports only %i cx231xx boards.\n", CX231XX_MAXBOARDS);
- cx231xx_devused &= ~(1 << nr);
- return -ENOMEM;
- }
+ do {
+ nr = find_first_zero_bit(&cx231xx_devused, CX231XX_MAXBOARDS);
+ if (nr >= CX231XX_MAXBOARDS) {
+ /* No free device slots */
+ cx231xx_err(DRIVER_NAME ": Supports only %i devices.\n",
+ CX231XX_MAXBOARDS);
+ return -ENOMEM;
+ }
+ } while (test_and_set_bit(nr, &cx231xx_devused));
/* allocate memory for our device state and initialize it */
dev = kzalloc(sizeof(*dev), GFP_KERNEL);
if (dev == NULL) {
cx231xx_err(DRIVER_NAME ": out of memory!\n");
- cx231xx_devused &= ~(1 << nr);
+ clear_bit(dev->devno, &cx231xx_devused);
return -ENOMEM;
}
@@ -1071,9 +1079,6 @@ static int cx231xx_usb_probe(struct usb_interface *interface,
/* init CIR module TBD */
- /* store the current interface */
- lif = interface;
-
/*mode_tv: digital=1 or analog=0*/
dev->mode_tv = 0;
@@ -1113,9 +1118,6 @@ static int cx231xx_usb_probe(struct usb_interface *interface,
le16_to_cpu(udev->descriptor.idProduct),
dev->max_iad_interface_count);
- /* store the interface 0 back */
- lif = udev->actconfig->interface[0];
-
/* increment interface count */
dev->interface_count++;
@@ -1126,7 +1128,7 @@ static int cx231xx_usb_probe(struct usb_interface *interface,
if (assoc_desc->bFirstInterface != ifnum) {
cx231xx_err(DRIVER_NAME ": Not found "
"matching IAD interface\n");
- cx231xx_devused &= ~(1 << nr);
+ clear_bit(dev->devno, &cx231xx_devused);
kfree(dev);
dev = NULL;
return -ENODEV;
@@ -1135,7 +1137,7 @@ static int cx231xx_usb_probe(struct usb_interface *interface,
cx231xx_info("registering interface %d\n", ifnum);
/* save our data pointer in this interface device */
- usb_set_intfdata(lif, dev);
+ usb_set_intfdata(interface, dev);
/*
* AV device initialization - only done at the last interface
@@ -1145,19 +1147,19 @@ static int cx231xx_usb_probe(struct usb_interface *interface,
retval = v4l2_device_register(&interface->dev, &dev->v4l2_dev);
if (retval) {
cx231xx_errdev("v4l2_device_register failed\n");
- cx231xx_devused &= ~(1 << nr);
+ clear_bit(dev->devno, &cx231xx_devused);
kfree(dev);
dev = NULL;
return -EIO;
}
/* allocate device struct */
- retval = cx231xx_init_dev(&dev, udev, nr);
+ retval = cx231xx_init_dev(dev, udev, nr);
if (retval) {
- cx231xx_devused &= ~(1 << dev->devno);
+ clear_bit(dev->devno, &cx231xx_devused);
v4l2_device_unregister(&dev->v4l2_dev);
kfree(dev);
dev = NULL;
- usb_set_intfdata(lif, NULL);
+ usb_set_intfdata(interface, NULL);
return retval;
}
@@ -1178,7 +1180,7 @@ static int cx231xx_usb_probe(struct usb_interface *interface,
if (dev->video_mode.alt_max_pkt_size == NULL) {
cx231xx_errdev("out of memory!\n");
- cx231xx_devused &= ~(1 << nr);
+ clear_bit(dev->devno, &cx231xx_devused);
v4l2_device_unregister(&dev->v4l2_dev);
kfree(dev);
dev = NULL;
@@ -1212,7 +1214,7 @@ static int cx231xx_usb_probe(struct usb_interface *interface,
if (dev->vbi_mode.alt_max_pkt_size == NULL) {
cx231xx_errdev("out of memory!\n");
- cx231xx_devused &= ~(1 << nr);
+ clear_bit(dev->devno, &cx231xx_devused);
v4l2_device_unregister(&dev->v4l2_dev);
kfree(dev);
dev = NULL;
@@ -1247,7 +1249,7 @@ static int cx231xx_usb_probe(struct usb_interface *interface,
if (dev->sliced_cc_mode.alt_max_pkt_size == NULL) {
cx231xx_errdev("out of memory!\n");
- cx231xx_devused &= ~(1 << nr);
+ clear_bit(dev->devno, &cx231xx_devused);
v4l2_device_unregister(&dev->v4l2_dev);
kfree(dev);
dev = NULL;
@@ -1283,7 +1285,7 @@ static int cx231xx_usb_probe(struct usb_interface *interface,
if (dev->ts1_mode.alt_max_pkt_size == NULL) {
cx231xx_errdev("out of memory!\n");
- cx231xx_devused &= ~(1 << nr);
+ clear_bit(dev->devno, &cx231xx_devused);
v4l2_device_unregister(&dev->v4l2_dev);
kfree(dev);
dev = NULL;
@@ -1334,10 +1336,9 @@ static void cx231xx_usb_disconnect(struct usb_interface *interface)
if (!dev->udev)
return;
- flush_request_modules(dev);
+ dev->state |= DEV_DISCONNECTED;
- /* delete v4l2 device */
- v4l2_device_unregister(&dev->v4l2_dev);
+ flush_request_modules(dev);
/* wait until all current v4l2 io is finished then deallocate
resources */
@@ -1351,31 +1352,24 @@ static void cx231xx_usb_disconnect(struct usb_interface *interface)
"deallocation are deferred on close.\n",
video_device_node_name(dev->vdev));
- dev->state |= DEV_MISCONFIGURED;
+ /* Even having users, it is safe to remove the RC i2c driver */
+ cx231xx_ir_exit(dev);
+
if (dev->USE_ISO)
cx231xx_uninit_isoc(dev);
else
cx231xx_uninit_bulk(dev);
- dev->state |= DEV_DISCONNECTED;
wake_up_interruptible(&dev->wait_frame);
wake_up_interruptible(&dev->wait_stream);
} else {
- dev->state |= DEV_DISCONNECTED;
- cx231xx_release_resources(dev);
}
cx231xx_close_extension(dev);
mutex_unlock(&dev->lock);
- if (!dev->users) {
- kfree(dev->video_mode.alt_max_pkt_size);
- kfree(dev->vbi_mode.alt_max_pkt_size);
- kfree(dev->sliced_cc_mode.alt_max_pkt_size);
- kfree(dev->ts1_mode.alt_max_pkt_size);
- kfree(dev);
- dev = NULL;
- }
+ if (!dev->users)
+ cx231xx_release_resources(dev);
}
static struct usb_driver cx231xx_usb_driver = {
diff --git a/drivers/media/video/cx231xx/cx231xx-core.c b/drivers/media/video/cx231xx/cx231xx-core.c
index d4457f9..08dd930 100644
--- a/drivers/media/video/cx231xx/cx231xx-core.c
+++ b/drivers/media/video/cx231xx/cx231xx-core.c
@@ -166,6 +166,9 @@ int cx231xx_send_usb_command(struct cx231xx_i2c *i2c_bus,
u8 _i2c_nostop = 0;
u8 _i2c_reserve = 0;
+ if (dev->state & DEV_DISCONNECTED)
+ return -ENODEV;
+
/* Get the I2C period, nostop and reserve parameters */
_i2c_period = i2c_bus->i2c_period;
_i2c_nostop = i2c_bus->i2c_nostop;
@@ -1071,7 +1074,7 @@ int cx231xx_init_isoc(struct cx231xx *dev, int max_packets,
sb_size, cx231xx_isoc_irq_callback, dma_q, 1);
urb->number_of_packets = max_packets;
- urb->transfer_flags = URB_ISO_ASAP;
+ urb->transfer_flags = URB_ISO_ASAP | URB_NO_TRANSFER_DMA_MAP;
k = 0;
for (j = 0; j < max_packets; j++) {
@@ -1182,7 +1185,7 @@ int cx231xx_init_bulk(struct cx231xx *dev, int max_packets,
return -ENOMEM;
}
dev->video_mode.bulk_ctl.urb[i] = urb;
- urb->transfer_flags = 0;
+ urb->transfer_flags = URB_NO_TRANSFER_DMA_MAP;
dev->video_mode.bulk_ctl.transfer_buffer[i] =
usb_alloc_coherent(dev->udev, sb_size, GFP_KERNEL,
diff --git a/drivers/media/video/cx231xx/cx231xx-dvb.c b/drivers/media/video/cx231xx/cx231xx-dvb.c
index da9a4a0..7c4e360 100644
--- a/drivers/media/video/cx231xx/cx231xx-dvb.c
+++ b/drivers/media/video/cx231xx/cx231xx-dvb.c
@@ -196,7 +196,7 @@ static inline int dvb_isoc_copy(struct cx231xx *dev, struct urb *urb)
if (!dev)
return 0;
- if ((dev->state & DEV_DISCONNECTED) || (dev->state & DEV_MISCONFIGURED))
+ if (dev->state & DEV_DISCONNECTED)
return 0;
if (urb->status < 0) {
@@ -228,7 +228,7 @@ static inline int dvb_bulk_copy(struct cx231xx *dev, struct urb *urb)
if (!dev)
return 0;
- if ((dev->state & DEV_DISCONNECTED) || (dev->state & DEV_MISCONFIGURED))
+ if (dev->state & DEV_DISCONNECTED)
return 0;
if (urb->status < 0) {
diff --git a/drivers/media/video/cx231xx/cx231xx-input.c b/drivers/media/video/cx231xx/cx231xx-input.c
index 45e14ca..96176e9 100644
--- a/drivers/media/video/cx231xx/cx231xx-input.c
+++ b/drivers/media/video/cx231xx/cx231xx-input.c
@@ -27,12 +27,16 @@
static int get_key_isdbt(struct IR_i2c *ir, u32 *ir_key,
u32 *ir_raw)
{
+ int rc;
u8 cmd, scancode;
dev_dbg(&ir->rc->input_dev->dev, "%s\n", __func__);
/* poll IR chip */
- if (1 != i2c_master_recv(ir->c, &cmd, 1))
+ rc = i2c_master_recv(ir->c, &cmd, 1);
+ if (rc < 0)
+ return rc;
+ if (rc != 1)
return -EIO;
/* it seems that 0xFE indicates that a button is still hold
@@ -102,11 +106,14 @@ int cx231xx_ir_init(struct cx231xx *dev)
ir_i2c_bus = cx231xx_boards[dev->model].ir_i2c_master;
dev_dbg(&dev->udev->dev, "Trying to bind ir at bus %d, addr 0x%02x\n",
ir_i2c_bus, info.addr);
- i2c_new_device(&dev->i2c_bus[ir_i2c_bus].i2c_adap, &info);
+ dev->ir_i2c_client = i2c_new_device(&dev->i2c_bus[ir_i2c_bus].i2c_adap, &info);
return 0;
}
void cx231xx_ir_exit(struct cx231xx *dev)
{
+ if (dev->ir_i2c_client)
+ i2c_unregister_device(dev->ir_i2c_client);
+ dev->ir_i2c_client = NULL;
}
diff --git a/drivers/media/video/cx231xx/cx231xx-vbi.c b/drivers/media/video/cx231xx/cx231xx-vbi.c
index 1c7a4da..8cdee5f 100644
--- a/drivers/media/video/cx231xx/cx231xx-vbi.c
+++ b/drivers/media/video/cx231xx/cx231xx-vbi.c
@@ -93,7 +93,7 @@ static inline int cx231xx_isoc_vbi_copy(struct cx231xx *dev, struct urb *urb)
if (!dev)
return 0;
- if ((dev->state & DEV_DISCONNECTED) || (dev->state & DEV_MISCONFIGURED))
+ if (dev->state & DEV_DISCONNECTED)
return 0;
if (urb->status < 0) {
@@ -452,7 +452,7 @@ int cx231xx_init_vbi_isoc(struct cx231xx *dev, int max_packets,
return -ENOMEM;
}
dev->vbi_mode.bulk_ctl.urb[i] = urb;
- urb->transfer_flags = 0;
+ urb->transfer_flags = URB_NO_TRANSFER_DMA_MAP;
dev->vbi_mode.bulk_ctl.transfer_buffer[i] =
kzalloc(sb_size, GFP_KERNEL);
diff --git a/drivers/media/video/cx231xx/cx231xx-video.c b/drivers/media/video/cx231xx/cx231xx-video.c
index 6e81f97..829a41b 100644
--- a/drivers/media/video/cx231xx/cx231xx-video.c
+++ b/drivers/media/video/cx231xx/cx231xx-video.c
@@ -337,7 +337,7 @@ static inline int cx231xx_isoc_copy(struct cx231xx *dev, struct urb *urb)
if (!dev)
return 0;
- if ((dev->state & DEV_DISCONNECTED) || (dev->state & DEV_MISCONFIGURED))
+ if (dev->state & DEV_DISCONNECTED)
return 0;
if (urb->status < 0) {
@@ -440,7 +440,7 @@ static inline int cx231xx_bulk_copy(struct cx231xx *dev, struct urb *urb)
if (!dev)
return 0;
- if ((dev->state & DEV_DISCONNECTED) || (dev->state & DEV_MISCONFIGURED))
+ if (dev->state & DEV_DISCONNECTED)
return 0;
if (urb->status < 0) {
@@ -1000,12 +1000,6 @@ static int check_dev(struct cx231xx *dev)
cx231xx_errdev("v4l2 ioctl: device not present\n");
return -ENODEV;
}
-
- if (dev->state & DEV_MISCONFIGURED) {
- cx231xx_errdev("v4l2 ioctl: device is misconfigured; "
- "close and open it again\n");
- return -EIO;
- }
return 0;
}
@@ -2347,7 +2341,8 @@ static int cx231xx_v4l2_close(struct file *filp)
return 0;
}
- if (dev->users == 1) {
+ dev->users--;
+ if (!dev->users) {
videobuf_stop(&fh->vb_vidq);
videobuf_mmap_free(&fh->vb_vidq);
@@ -2374,7 +2369,6 @@ static int cx231xx_v4l2_close(struct file *filp)
cx231xx_set_alt_setting(dev, INDEX_VIDEO, 0);
}
kfree(fh);
- dev->users--;
wake_up_interruptible_nr(&dev->open, 1);
return 0;
}
diff --git a/drivers/media/video/cx231xx/cx231xx.h b/drivers/media/video/cx231xx/cx231xx.h
index 2000bc6..e174475 100644
--- a/drivers/media/video/cx231xx/cx231xx.h
+++ b/drivers/media/video/cx231xx/cx231xx.h
@@ -377,7 +377,6 @@ struct cx231xx_board {
enum cx231xx_dev_state {
DEV_INITIALIZED = 0x01,
DEV_DISCONNECTED = 0x02,
- DEV_MISCONFIGURED = 0x04,
};
enum AFE_MODE {
@@ -621,6 +620,7 @@ struct cx231xx {
/* For I2C IR support */
struct IR_i2c_init_data init_data;
+ struct i2c_client *ir_i2c_client;
unsigned int stream_on:1; /* Locks streams */
unsigned int vbi_stream_on:1; /* Locks streams for VBI */
generated by cgit v0.10.2 at 2024-11-14 23:56:23 (GMT)