diff options
Diffstat (limited to 'drivers/media/dvb/dvb-core/dvb_ca_en50221.c')
| -rw-r--r-- | drivers/media/dvb/dvb-core/dvb_ca_en50221.c | 36 |
1 files changed, 20 insertions, 16 deletions
diff --git a/drivers/media/dvb/dvb-core/dvb_ca_en50221.c b/drivers/media/dvb/dvb-core/dvb_ca_en50221.c index 8cbdb0ec67e2..8e5dd7b1f034 100644 --- a/drivers/media/dvb/dvb-core/dvb_ca_en50221.c +++ b/drivers/media/dvb/dvb-core/dvb_ca_en50221.c @@ -910,15 +910,21 @@ static void dvb_ca_en50221_thread_update_delay(struct dvb_ca_private *ca) int curdelay = 100000000; int slot; + /* Beware of too high polling frequency, because one polling + * call might take several hundred milliseconds until timeout! + */ for (slot = 0; slot < ca->slot_count; slot++) { switch (ca->slot_info[slot].slot_state) { default: case DVB_CA_SLOTSTATE_NONE: + delay = HZ * 60; /* 60s */ + if (!(ca->flags & DVB_CA_EN50221_FLAG_IRQ_CAMCHANGE)) + delay = HZ * 5; /* 5s */ + break; case DVB_CA_SLOTSTATE_INVALID: - delay = HZ * 60; - if (!(ca->flags & DVB_CA_EN50221_FLAG_IRQ_CAMCHANGE)) { - delay = HZ / 10; - } + delay = HZ * 60; /* 60s */ + if (!(ca->flags & DVB_CA_EN50221_FLAG_IRQ_CAMCHANGE)) + delay = HZ / 10; /* 100ms */ break; case DVB_CA_SLOTSTATE_UNINITIALISED: @@ -926,19 +932,17 @@ static void dvb_ca_en50221_thread_update_delay(struct dvb_ca_private *ca) case DVB_CA_SLOTSTATE_VALIDATE: case DVB_CA_SLOTSTATE_WAITFR: case DVB_CA_SLOTSTATE_LINKINIT: - delay = HZ / 10; + delay = HZ / 10; /* 100ms */ break; case DVB_CA_SLOTSTATE_RUNNING: - delay = HZ * 60; - if (!(ca->flags & DVB_CA_EN50221_FLAG_IRQ_CAMCHANGE)) { - delay = HZ / 10; - } + delay = HZ * 60; /* 60s */ + if (!(ca->flags & DVB_CA_EN50221_FLAG_IRQ_CAMCHANGE)) + delay = HZ / 10; /* 100ms */ if (ca->open) { if ((!ca->slot_info[slot].da_irq_supported) || - (!(ca->flags & DVB_CA_EN50221_FLAG_IRQ_DA))) { - delay = HZ / 10; - } + (!(ca->flags & DVB_CA_EN50221_FLAG_IRQ_DA))) + delay = HZ / 10; /* 100ms */ } break; } @@ -1353,7 +1357,7 @@ static int dvb_ca_en50221_io_read_condition(struct dvb_ca_private *ca, idx = dvb_ringbuffer_pkt_next(&ca->slot_info[slot].rx_buffer, -1, &fraglen); while (idx != -1) { - dvb_ringbuffer_pkt_read(&ca->slot_info[slot].rx_buffer, idx, 0, hdr, 2, 0); + dvb_ringbuffer_pkt_read(&ca->slot_info[slot].rx_buffer, idx, 0, hdr, 2); if (connection_id == -1) connection_id = hdr[0]; if ((hdr[0] == connection_id) && ((hdr[1] & 0x80) == 0)) { @@ -1434,7 +1438,7 @@ static ssize_t dvb_ca_en50221_io_read(struct file *file, char __user * buf, goto exit; } - dvb_ringbuffer_pkt_read(&ca->slot_info[slot].rx_buffer, idx, 0, hdr, 2, 0); + dvb_ringbuffer_pkt_read(&ca->slot_info[slot].rx_buffer, idx, 0, hdr, 2); if (connection_id == -1) connection_id = hdr[0]; if (hdr[0] == connection_id) { @@ -1445,8 +1449,8 @@ static ssize_t dvb_ca_en50221_io_read(struct file *file, char __user * buf, fraglen -= 2; } - if ((status = dvb_ringbuffer_pkt_read(&ca->slot_info[slot].rx_buffer, idx, 2, - (u8 *)buf + pktlen, fraglen, 1)) < 0) { + if ((status = dvb_ringbuffer_pkt_read_user(&ca->slot_info[slot].rx_buffer, idx, 2, + buf + pktlen, fraglen)) < 0) { goto exit; } pktlen += fraglen; |