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-rw-r--r--linux/drivers/media/dvb/dvb-core/dmxdev.c12
-rw-r--r--linux/drivers/media/dvb/dvb-core/dvb_frontend.c18
-rw-r--r--linux/drivers/media/dvb/dvb-core/dvb_frontend.h2
-rw-r--r--linux/drivers/media/dvb/frontends/tda1004x.c12
-rw-r--r--linux/drivers/media/dvb/ttpci/budget-av.c13
5 files changed, 36 insertions, 21 deletions
diff --git a/linux/drivers/media/dvb/dvb-core/dmxdev.c b/linux/drivers/media/dvb/dvb-core/dmxdev.c
index 09e96e9dd..04578df3f 100644
--- a/linux/drivers/media/dvb/dvb-core/dmxdev.c
+++ b/linux/drivers/media/dvb/dvb-core/dmxdev.c
@@ -141,12 +141,18 @@ static int dvb_dvr_open(struct inode *inode, struct file *file)
}
if ((file->f_flags & O_ACCMODE) == O_RDONLY) {
- void *mem = vmalloc(DVR_BUFFER_SIZE);
+ void *mem;
+ if (!dvbdev->readers) {
+ mutex_unlock(&dmxdev->mutex);
+ return -EBUSY;
+ }
+ mem = vmalloc(DVR_BUFFER_SIZE);
if (!mem) {
mutex_unlock(&dmxdev->mutex);
return -ENOMEM;
}
dvb_ringbuffer_init(&dmxdev->dvr_buffer, mem, DVR_BUFFER_SIZE);
+ dvbdev->readers--;
}
if ((file->f_flags & O_ACCMODE) == O_WRONLY) {
@@ -184,6 +190,7 @@ static int dvb_dvr_release(struct inode *inode, struct file *file)
dmxdev->dvr_orig_fe);
}
if ((file->f_flags & O_ACCMODE) == O_RDONLY) {
+ dvbdev->readers++;
if (dmxdev->dvr_buffer.data) {
void *mem = dmxdev->dvr_buffer.data;
mb();
@@ -1029,8 +1036,7 @@ static struct file_operations dvb_dvr_fops = {
static struct dvb_device dvbdev_dvr = {
.priv = NULL,
- .users = 1,
- .writers = 1,
+ .readers = 1,
.fops = &dvb_dvr_fops
};
diff --git a/linux/drivers/media/dvb/dvb-core/dvb_frontend.c b/linux/drivers/media/dvb/dvb-core/dvb_frontend.c
index 55a91bb18..875033330 100644
--- a/linux/drivers/media/dvb/dvb-core/dvb_frontend.c
+++ b/linux/drivers/media/dvb/dvb-core/dvb_frontend.c
@@ -105,6 +105,7 @@ struct dvb_frontend_private {
fe_status_t status;
unsigned long tune_mode_flags;
unsigned int delay;
+ unsigned int reinitialise;
/* swzigzag values */
unsigned int state;
@@ -121,6 +122,7 @@ struct dvb_frontend_private {
unsigned int check_wrapped;
};
+static void dvb_frontend_wakeup(struct dvb_frontend *fe);
static void dvb_frontend_add_event(struct dvb_frontend *fe, fe_status_t status)
{
@@ -213,6 +215,15 @@ static void dvb_frontend_init(struct dvb_frontend *fe)
fe->ops->init(fe);
}
+void dvb_frontend_reinitialise(struct dvb_frontend *fe)
+{
+ struct dvb_frontend_private *fepriv = fe->frontend_priv;
+
+ fepriv->reinitialise = 1;
+ dvb_frontend_wakeup(fe);
+}
+EXPORT_SYMBOL(dvb_frontend_reinitialise);
+
static void dvb_frontend_swzigzag_update_delay(struct dvb_frontend_private *fepriv, int locked)
{
int q2;
@@ -505,8 +516,8 @@ static int dvb_frontend_thread(void *data)
fepriv->quality = 0;
fepriv->delay = 3*HZ;
fepriv->status = 0;
- dvb_frontend_init(fe);
fepriv->wakeup = 0;
+ fepriv->reinitialise = 1;
while (1) {
up(&fepriv->sem); /* is locked when we enter the thread... */
@@ -530,6 +541,11 @@ static int dvb_frontend_thread(void *data)
if (down_interruptible(&fepriv->sem))
break;
+ if (fepriv->reinitialise) {
+ dvb_frontend_init(fe);
+ fepriv->reinitialise = 0;
+ }
+
/* do an iteration of the tuning loop */
if (fe->ops->tune) {
/* have we been asked to retune? */
diff --git a/linux/drivers/media/dvb/dvb-core/dvb_frontend.h b/linux/drivers/media/dvb/dvb-core/dvb_frontend.h
index d5aee5ad6..5926a3b74 100644
--- a/linux/drivers/media/dvb/dvb-core/dvb_frontend.h
+++ b/linux/drivers/media/dvb/dvb-core/dvb_frontend.h
@@ -112,6 +112,8 @@ extern int dvb_register_frontend(struct dvb_adapter* dvb,
extern int dvb_unregister_frontend(struct dvb_frontend* fe);
+extern void dvb_frontend_reinitialise(struct dvb_frontend *fe);
+
extern void dvb_frontend_sleep_until(struct timeval *waketime, u32 add_usec);
extern s32 timeval_usec_diff(struct timeval lasttime, struct timeval curtime);
diff --git a/linux/drivers/media/dvb/frontends/tda1004x.c b/linux/drivers/media/dvb/frontends/tda1004x.c
index 8e8df7b4c..b83dafa4e 100644
--- a/linux/drivers/media/dvb/frontends/tda1004x.c
+++ b/linux/drivers/media/dvb/frontends/tda1004x.c
@@ -52,7 +52,6 @@ struct tda1004x_state {
struct dvb_frontend frontend;
/* private demod data */
- u8 initialised;
enum tda1004x_demod demod_type;
};
@@ -594,9 +593,6 @@ static int tda10045_init(struct dvb_frontend* fe)
dprintk("%s\n", __FUNCTION__);
- if (state->initialised)
- return 0;
-
if (tda10045_fwupload(fe)) {
printk("tda1004x: firmware upload failed\n");
return -EIO;
@@ -626,7 +622,6 @@ static int tda10045_init(struct dvb_frontend* fe)
tda1004x_write_mask(state, 0x1f, 0x01, state->config->invert_oclk);
- state->initialised = 1;
return 0;
}
@@ -635,9 +630,6 @@ static int tda10046_init(struct dvb_frontend* fe)
struct tda1004x_state* state = fe->demodulator_priv;
dprintk("%s\n", __FUNCTION__);
- if (state->initialised)
- return 0;
-
if (tda10046_fwupload(fe)) {
printk("tda1004x: firmware upload failed\n");
return -EIO;
@@ -697,7 +689,6 @@ static int tda10046_init(struct dvb_frontend* fe)
// tda1004x_write_mask(state, 0x50, 0x80, 0x80); // handle out of guard echoes
tda1004x_write_mask(state, 0x3a, 0x80, state->config->invert_oclk << 7);
- state->initialised = 1;
return 0;
}
@@ -1207,7 +1198,6 @@ static int tda1004x_sleep(struct dvb_frontend* fe)
tda1004x_write_mask(state, TDA1004X_CONFC4, 1, 1);
break;
}
- state->initialised = 0;
return 0;
}
@@ -1271,7 +1261,6 @@ struct dvb_frontend* tda10045_attach(const struct tda1004x_config* config,
state->config = config;
state->i2c = i2c;
memcpy(&state->ops, &tda10045_ops, sizeof(struct dvb_frontend_ops));
- state->initialised = 0;
state->demod_type = TDA1004X_DEMOD_TDA10045;
/* check if the demod is there */
@@ -1330,7 +1319,6 @@ struct dvb_frontend* tda10046_attach(const struct tda1004x_config* config,
state->config = config;
state->i2c = i2c;
memcpy(&state->ops, &tda10046_ops, sizeof(struct dvb_frontend_ops));
- state->initialised = 0;
state->demod_type = TDA1004X_DEMOD_TDA10046;
/* check if the demod is there */
diff --git a/linux/drivers/media/dvb/ttpci/budget-av.c b/linux/drivers/media/dvb/ttpci/budget-av.c
index 9dd4745f5..8efe3ce5f 100644
--- a/linux/drivers/media/dvb/ttpci/budget-av.c
+++ b/linux/drivers/media/dvb/ttpci/budget-av.c
@@ -60,11 +60,11 @@ struct budget_av {
struct dvb_ca_en50221 ca;
};
-/* GPIO CI Connections:
- * 0 - Vcc/Reset (Reset is controlled by capacitor)
- * 1 - Attribute Memory
- * 2 - Card Enable (Active Low)
- * 3 - Card Detect
+/* GPIO Connections:
+ * 0 - Vcc/Reset (Reset is controlled by capacitor). Resets the frontend *AS WELL*!
+ * 1 - CI memory select 0=>IO memory, 1=>Attribute Memory
+ * 2 - CI Card Enable (Active Low)
+ * 3 - CI Card Detect
*/
/****************************************************************************
@@ -214,6 +214,9 @@ static int ciintf_slot_reset(struct dvb_ca_en50221 *ca, int slot)
while (--timeout > 0 && ciintf_read_attribute_mem(ca, slot, 0) != 0x1d)
msleep(100);
+ /* reinitialise the frontend */
+ dvb_frontend_reinitialise(budget_av->budget.dvb_frontend);
+
if (timeout <= 0)
{
printk(KERN_ERR "budget-av: cam reset failed (timeout).\n");
generated by cgit v1.2.3 (git 2.25.1) at 2025-01-09 10:59:44 +0000