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authorAndrew de Quincy <devnull@localhost>2004-11-12 13:51:21 +0000
committerAndrew de Quincy <devnull@localhost>2004-11-12 13:51:21 +0000
commit6619ffef1ac825f47ff0ac16eecfa0225bdc7f2a (patch)
tree56f9ee78bb36ac4e01932812c5d85a7381885d9c /linux/drivers/media/dvb/dvb-core
parentfed16c767f240aabd0ab2ab38fb36a783922b6c5 (diff)
downloadmediapointer-dvb-s2-6619ffef1ac825f47ff0ac16eecfa0225bdc7f2a.tar.gz
mediapointer-dvb-s2-6619ffef1ac825f47ff0ac16eecfa0225bdc7f2a.tar.bz2
Support for KNC1/Cinergy CI modules. Patch by Olivier Gournet and myself.
Diffstat (limited to 'linux/drivers/media/dvb/dvb-core')
-rw-r--r--linux/drivers/media/dvb/dvb-core/dvb_ca_en50221.c942
1 files changed, 531 insertions, 411 deletions
diff --git a/linux/drivers/media/dvb/dvb-core/dvb_ca_en50221.c b/linux/drivers/media/dvb/dvb-core/dvb_ca_en50221.c
index b33e22749..2f96cdf0f 100644
--- a/linux/drivers/media/dvb/dvb-core/dvb_ca_en50221.c
+++ b/linux/drivers/media/dvb/dvb-core/dvb_ca_en50221.c
@@ -42,8 +42,8 @@
static int dvb_ca_en50221_debug;
-module_param_named(cam_debug, dvb_ca_en50221_debug, int, 0644);
-MODULE_PARM_DESC(cam_debug, "enable verbose debug messages");
+module_param_named (cam_debug, dvb_ca_en50221_debug, int, 0644);
+MODULE_PARM_DESC (cam_debug, "enable verbose debug messages");
#define dprintk if (dvb_ca_en50221_debug) printk
@@ -61,19 +61,19 @@ MODULE_PARM_DESC(cam_debug, "enable verbose debug messages");
#define CTRLIF_SIZE_LOW 2
#define CTRLIF_SIZE_HIGH 3
-#define CMDREG_HC 1 /* Host control */
-#define CMDREG_SW 2 /* Size write */
-#define CMDREG_SR 4 /* Size read */
-#define CMDREG_RS 8 /* Reset interface */
-#define CMDREG_FRIE 0x40 /* Enable FR interrupt */
-#define CMDREG_DAIE 0x80 /* Enable DA interrupt */
+#define CMDREG_HC 1 /* Host control */
+#define CMDREG_SW 2 /* Size write */
+#define CMDREG_SR 4 /* Size read */
+#define CMDREG_RS 8 /* Reset interface */
+#define CMDREG_FRIE 0x40 /* Enable FR interrupt */
+#define CMDREG_DAIE 0x80 /* Enable DA interrupt */
#define IRQEN (CMDREG_DAIE)
-#define STATUSREG_RE 1 /* read error */
-#define STATUSREG_WE 2 /* write error */
-#define STATUSREG_FR 0x40 /* module free */
-#define STATUSREG_DA 0x80 /* data available */
-#define STATUSREG_TXERR (STATUSREG_RE|STATUSREG_WE) /* general transfer error */
+#define STATUSREG_RE 1 /* read error */
+#define STATUSREG_WE 2 /* write error */
+#define STATUSREG_FR 0x40 /* module free */
+#define STATUSREG_DA 0x80 /* data available */
+#define STATUSREG_TXERR (STATUSREG_RE|STATUSREG_WE) /* general transfer error */
#define DVB_CA_SLOTSTATE_NONE 0
@@ -124,7 +124,7 @@ struct dvb_ca_slot {
struct dvb_ca_private {
/* pointer back to the public data structure */
- struct dvb_ca_en50221* pub;
+ struct dvb_ca_en50221 *pub;
/* the DVB device */
struct dvb_device *dvbdev;
@@ -136,7 +136,7 @@ struct dvb_ca_private {
unsigned int slot_count;
/* information on each slot */
- struct dvb_ca_slot* slot_info;
+ struct dvb_ca_slot *slot_info;
/* wait queues for read() and write() operations */
wait_queue_head_t wait_queue;
@@ -163,9 +163,11 @@ struct dvb_ca_private {
int next_read_slot;
};
-static void dvb_ca_en50221_thread_wakeup(struct dvb_ca_private* ca);
-static int dvb_ca_en50221_read_data(struct dvb_ca_private* ca, int slot, u8* ebuf, int ecount);
-static int dvb_ca_en50221_write_data(struct dvb_ca_private* ca, int slot, u8* ebuf, int ecount);
+static void dvb_ca_en50221_thread_wakeup (struct dvb_ca_private *ca);
+static int dvb_ca_en50221_read_data (struct dvb_ca_private *ca, int slot,
+ u8 * ebuf, int ecount);
+static int dvb_ca_en50221_write_data (struct dvb_ca_private *ca, int slot,
+ u8 * ebuf, int ecount);
/**
@@ -177,14 +179,16 @@ static int dvb_ca_en50221_write_data(struct dvb_ca_private* ca, int slot, u8* eb
* @param nlen Number of bytes in needle.
* @return Pointer into haystack needle was found at, or NULL if not found.
*/
-static u8* findstr(u8* haystack, int hlen, u8* needle, int nlen)
+static u8 *findstr (u8 * haystack, int hlen, u8 * needle, int nlen)
{
int i;
- if (hlen < nlen) return NULL;
+ if (hlen < nlen)
+ return NULL;
- for(i=0; i<= hlen - nlen; i++) {
- if (!strncmp(haystack+i, needle, nlen)) return haystack+i;
+ for (i = 0; i <= hlen - nlen; i++) {
+ if (!strncmp (haystack + i, needle, nlen))
+ return haystack + i;
}
return NULL;
@@ -199,7 +203,7 @@ static u8* findstr(u8* haystack, int hlen, u8* needle, int nlen)
/**
* Check CAM status.
*/
-static int dvb_ca_en50221_check_camstatus(struct dvb_ca_private* ca, int slot)
+static int dvb_ca_en50221_check_camstatus (struct dvb_ca_private *ca, int slot)
{
int slot_status;
int cam_present_now;
@@ -207,14 +211,14 @@ static int dvb_ca_en50221_check_camstatus(struct dvb_ca_private* ca, int slot)
/* IRQ mode */
if (ca->flags & DVB_CA_EN50221_FLAG_IRQ_CAMCHANGE) {
- return (atomic_read(&ca->slot_info[slot].camchange_count) != 0);
+ return (atomic_read (&ca->slot_info[slot].camchange_count) != 0);
}
/* poll mode */
- slot_status = ca->pub->poll_slot_status(ca->pub, slot);
+ slot_status = ca->pub->poll_slot_status (ca->pub, slot);
- cam_present_now = (slot_status & DVB_CA_EN50221_POLL_CAM_PRESENT) ? 1: 0;
- cam_changed = (slot_status & DVB_CA_EN50221_POLL_CAM_CHANGED) ? 1: 0;
+ cam_present_now = (slot_status & DVB_CA_EN50221_POLL_CAM_PRESENT) ? 1 : 0;
+ cam_changed = (slot_status & DVB_CA_EN50221_POLL_CAM_CHANGED) ? 1 : 0;
if (!cam_changed) {
int cam_present_old = (ca->slot_info[slot].slot_state != DVB_CA_SLOTSTATE_NONE);
cam_changed = (cam_present_now != cam_present_old);
@@ -226,7 +230,7 @@ static int dvb_ca_en50221_check_camstatus(struct dvb_ca_private* ca, int slot)
} else {
ca->slot_info[slot].camchange_type = DVB_CA_EN50221_CAMCHANGE_INSERTED;
}
- atomic_set(&ca->slot_info[slot].camchange_count, 1);
+ atomic_set (&ca->slot_info[slot].camchange_count, 1);
} else {
if ((ca->slot_info[slot].slot_state == DVB_CA_SLOTSTATE_WAITREADY) &&
(slot_status & DVB_CA_EN50221_POLL_CAM_READY)) {
@@ -250,7 +254,8 @@ static int dvb_ca_en50221_check_camstatus(struct dvb_ca_private* ca, int slot)
*
* @return 0 on success, nonzero on error.
*/
-static int dvb_ca_en50221_wait_if_status(struct dvb_ca_private* ca, int slot, u8 waitfor, int timeout_hz)
+static int dvb_ca_en50221_wait_if_status (struct dvb_ca_private *ca, int slot,
+ u8 waitfor, int timeout_hz)
{
unsigned long timeout;
unsigned long start;
@@ -260,27 +265,30 @@ static int dvb_ca_en50221_wait_if_status(struct dvb_ca_private* ca, int slot, u8
/* loop until timeout elapsed */
start = jiffies;
timeout = jiffies + timeout_hz;
- while(1) {
+ while (1) {
/* read the status and check for error */
- int res = ca->pub->read_cam_control(ca->pub, slot, CTRLIF_STATUS);
- if (res < 0) return -EIO;
+ int res = ca->pub->read_cam_control (ca->pub, slot,
+ CTRLIF_STATUS);
+ if (res < 0)
+ return -EIO;
/* if we got the flags, it was successful! */
if (res & waitfor) {
- dprintk("%s succeeded timeout:%lu\n", __FUNCTION__, jiffies - start);
+ dprintk ("%s succeeded timeout:%lu\n", __FUNCTION__,
+ jiffies - start);
return 0;
}
/* check for timeout */
- if (time_after(jiffies, timeout)) {
+ if (time_after (jiffies, timeout)) {
break;
}
/* wait for a bit */
- msleep(1);
+ msleep (1);
}
- dprintk("%s failed timeout:%lu\n", __FUNCTION__, jiffies - start);
+ dprintk ("%s failed timeout:%lu\n", __FUNCTION__, jiffies - start);
/* if we get here, we've timed out */
return -ETIMEDOUT;
@@ -295,7 +303,7 @@ static int dvb_ca_en50221_wait_if_status(struct dvb_ca_private* ca, int slot, u8
*
* @return 0 on success, nonzero on failure.
*/
-static int dvb_ca_en50221_link_init(struct dvb_ca_private* ca, int slot)
+static int dvb_ca_en50221_link_init (struct dvb_ca_private *ca, int slot)
{
int ret;
int buf_size;
@@ -311,24 +319,33 @@ static int dvb_ca_en50221_link_init(struct dvb_ca_private* ca, int slot)
ca->slot_info[slot].link_buf_size = 2;
/* read the buffer size from the CAM */
- if ((ret = ca->pub->write_cam_control(ca->pub, slot, CTRLIF_COMMAND, IRQEN | CMDREG_SR)) != 0) return ret;
- if ((ret = dvb_ca_en50221_wait_if_status(ca, slot, STATUSREG_DA, HZ/10)) != 0) return ret;
- if ((ret = dvb_ca_en50221_read_data(ca, slot, buf, 2)) != 2) return -EIO;
- if ((ret = ca->pub->write_cam_control(ca->pub, slot, CTRLIF_COMMAND, IRQEN)) != 0) return ret;
+ if ((ret = ca->pub->write_cam_control (ca->pub, slot, CTRLIF_COMMAND, IRQEN | CMDREG_SR)) != 0)
+ return ret;
+ if ((ret = dvb_ca_en50221_wait_if_status (ca, slot, STATUSREG_DA, HZ / 10)) != 0)
+ return ret;
+ if ((ret = dvb_ca_en50221_read_data (ca, slot, buf, 2)) != 2)
+ return -EIO;
+ if ((ret = ca->pub->write_cam_control (ca->pub, slot, CTRLIF_COMMAND, IRQEN)) != 0)
+ return ret;
/* store it, and choose the minimum of our buffer and the CAM's buffer size */
buf_size = (buf[0] << 8) | buf[1];
- if (buf_size > HOST_LINK_BUF_SIZE) buf_size = HOST_LINK_BUF_SIZE;
+ if (buf_size > HOST_LINK_BUF_SIZE)
+ buf_size = HOST_LINK_BUF_SIZE;
ca->slot_info[slot].link_buf_size = buf_size;
buf[0] = buf_size >> 8;
buf[1] = buf_size & 0xff;
- dprintk("Chosen link buffer size of %i\n", buf_size);
+ dprintk ("Chosen link buffer size of %i\n", buf_size);
/* write the buffer size to the CAM */
- if ((ret = ca->pub->write_cam_control(ca->pub, slot, CTRLIF_COMMAND, IRQEN | CMDREG_SW)) != 0) return ret;
- if ((ret = dvb_ca_en50221_wait_if_status(ca, slot, STATUSREG_FR, HZ/10)) != 0) return ret;
- if ((ret = dvb_ca_en50221_write_data(ca, slot, buf, 2)) != 2) return -EIO;
- if ((ret = ca->pub->write_cam_control(ca->pub, slot, CTRLIF_COMMAND, IRQEN)) != 0) return ret;
+ if ((ret = ca->pub->write_cam_control (ca->pub, slot, CTRLIF_COMMAND, IRQEN | CMDREG_SW)) != 0)
+ return ret;
+ if ((ret = dvb_ca_en50221_wait_if_status (ca, slot, STATUSREG_FR, HZ / 10)) != 0)
+ return ret;
+ if ((ret = dvb_ca_en50221_write_data (ca, slot, buf, 2)) != 2)
+ return -EIO;
+ if ((ret = ca->pub->write_cam_control (ca->pub, slot, CTRLIF_COMMAND, IRQEN)) != 0)
+ return ret;
/* success */
return 0;
@@ -346,8 +363,9 @@ static int dvb_ca_en50221_link_init(struct dvb_ca_private* ca, int slot)
*
* @return 0 on success, nonzero on error.
*/
-static int dvb_ca_en50221_read_tuple(struct dvb_ca_private* ca, int slot,
- int* address, int* tupleType, int* tupleLength, u8* tuple)
+static int dvb_ca_en50221_read_tuple (struct dvb_ca_private *ca, int slot,
+ int *address, int *tupleType,
+ int *tupleLength, u8 * tuple)
{
int i;
int _tupleType;
@@ -355,25 +373,30 @@ static int dvb_ca_en50221_read_tuple(struct dvb_ca_private* ca, int slot,
int _address = *address;
/* grab the next tuple length and type */
- if ((_tupleType = ca->pub->read_attribute_mem(ca->pub, slot, _address)) < 0) return _tupleType;
+ if ((_tupleType = ca->pub->read_attribute_mem (ca->pub, slot, _address)) < 0)
+ return _tupleType;
if (_tupleType == 0xff) {
- dprintk("END OF CHAIN TUPLE type:0x%x\n", _tupleType);
+ dprintk ("END OF CHAIN TUPLE type:0x%x\n", _tupleType);
*address += 2;
*tupleType = _tupleType;
*tupleLength = 0;
return 0;
}
- if ((_tupleLength = ca->pub->read_attribute_mem(ca->pub, slot, _address+2)) < 0) return _tupleLength;
+ if ((_tupleLength = ca->pub->read_attribute_mem (ca->pub, slot, _address + 2)) < 0)
+ return _tupleLength;
_address += 4;
- dprintk("TUPLE type:0x%x length:%i\n", _tupleType, _tupleLength);
+ dprintk ("TUPLE type:0x%x length:%i\n", _tupleType, _tupleLength);
/* read in the whole tuple */
- for(i=0; i< _tupleLength; i++) {
- tuple[i] = ca->pub->read_attribute_mem(ca->pub, slot, _address + (i*2));
- dprintk(" 0x%02x: 0x%02x %c\n", i, tuple[i] & 0xff, ((tuple[i] > 31) && (tuple[i] < 127)) ? tuple[i] : '.');
+ for (i = 0; i < _tupleLength; i++) {
+ tuple[i] = ca->pub->read_attribute_mem (ca->pub, slot,
+ _address + (i * 2));
+ dprintk (" 0x%02x: 0x%02x %c\n", i, tuple[i] & 0xff,
+ ((tuple[i] > 31)
+ && (tuple[i] < 127)) ? tuple[i] : '.');
}
- _address += (_tupleLength*2);
+ _address += (_tupleLength * 2);
// success
*tupleType = _tupleType;
@@ -392,13 +415,13 @@ static int dvb_ca_en50221_read_tuple(struct dvb_ca_private* ca, int slot,
*
* @return 0 on success, <0 on failure.
*/
-static int dvb_ca_en50221_parse_attributes(struct dvb_ca_private* ca, int slot)
+static int dvb_ca_en50221_parse_attributes (struct dvb_ca_private *ca, int slot)
{
int address = 0;
int tupleLength;
int tupleType;
u8 tuple[257];
- char* dvb_str;
+ char *dvb_str;
int rasz;
int status;
int got_cftableentry = 0;
@@ -409,96 +432,116 @@ static int dvb_ca_en50221_parse_attributes(struct dvb_ca_private* ca, int slot)
// CISTPL_DEVICE_0A
- if ((status = dvb_ca_en50221_read_tuple(ca, slot, &address, &tupleType, &tupleLength, tuple)) < 0) return status;
- if (tupleType != 0x1D) return -EINVAL;
+ if ((status = dvb_ca_en50221_read_tuple (ca, slot, &address, &tupleType, &tupleLength, tuple)) < 0)
+ return status;
+ if (tupleType != 0x1D)
+ return -EINVAL;
// CISTPL_DEVICE_0C
- if ((status = dvb_ca_en50221_read_tuple(ca, slot, &address, &tupleType, &tupleLength, tuple)) < 0) return status;
- if (tupleType != 0x1C) return -EINVAL;
+ if ((status = dvb_ca_en50221_read_tuple (ca, slot, &address, &tupleType, &tupleLength, tuple)) < 0)
+ return status;
+ if (tupleType != 0x1C)
+ return -EINVAL;
// CISTPL_VERS_1
- if ((status = dvb_ca_en50221_read_tuple(ca, slot, &address, &tupleType, &tupleLength, tuple)) < 0) return status;
- if (tupleType != 0x15) return -EINVAL;
+ if ((status = dvb_ca_en50221_read_tuple (ca, slot, &address, &tupleType, &tupleLength, tuple)) < 0)
+ return status;
+ if (tupleType != 0x15)
+ return -EINVAL;
// CISTPL_MANFID
- if ((status = dvb_ca_en50221_read_tuple(ca, slot, &address, &tupleType, &tupleLength, tuple)) < 0) return status;
- if (tupleType != 0x20) return -EINVAL;
- if (tupleLength != 4) return -EINVAL;
+ if ((status = dvb_ca_en50221_read_tuple (ca, slot, &address, &tupleType,
+ &tupleLength, tuple)) < 0)
+ return status;
+ if (tupleType != 0x20)
+ return -EINVAL;
+ if (tupleLength != 4)
+ return -EINVAL;
manfid = (tuple[1] << 8) | tuple[0];
devid = (tuple[3] << 8) | tuple[2];
// CISTPL_CONFIG
- if ((status = dvb_ca_en50221_read_tuple(ca, slot, &address, &tupleType, &tupleLength, tuple)) < 0) return status;
- if (tupleType != 0x1A) return -EINVAL;
- if (tupleLength < 3) return -EINVAL;
+ if ((status = dvb_ca_en50221_read_tuple (ca, slot, &address, &tupleType,
+ &tupleLength, tuple)) < 0)
+ return status;
+ if (tupleType != 0x1A)
+ return -EINVAL;
+ if (tupleLength < 3)
+ return -EINVAL;
/* extract the configbase */
rasz = tuple[0] & 3;
- if (tupleLength < (3 + rasz + 14)) return -EINVAL;
+ if (tupleLength < (3 + rasz + 14))
+ return -EINVAL;
ca->slot_info[slot].config_base = 0;
- for(i=0; i< rasz+1; i++) {
- ca->slot_info[slot].config_base |= (tuple[2+i] << (8*i));
+ for (i = 0; i < rasz + 1; i++) {
+ ca->slot_info[slot].config_base |= (tuple[2 + i] << (8 * i));
}
/* check it contains the correct DVB string */
- dvb_str = findstr(tuple, tupleLength, "DVB_CI_V", 8);
- if (dvb_str == NULL) return -EINVAL;
- if (tupleLength < ((dvb_str - (char*) tuple) + 12)) return -EINVAL;
+ dvb_str = findstr (tuple, tupleLength, "DVB_CI_V", 8);
+ if (dvb_str == NULL)
+ return -EINVAL;
+ if (tupleLength < ((dvb_str - (char *) tuple) + 12))
+ return -EINVAL;
/* is it a version we support? */
- if (strncmp(dvb_str + 8, "1.00", 4)) {
- printk("dvb_ca adapter %d: Unsupported DVB CAM module version %c%c%c%c\n",
- ca->dvbdev->adapter->num, dvb_str[8], dvb_str[9], dvb_str[10], dvb_str[11]);
+ if (strncmp (dvb_str + 8, "1.00", 4)) {
+ printk ("dvb_ca adapter %d: Unsupported DVB CAM module version %c%c%c%c\n", ca->dvbdev->adapter->num, dvb_str[8], dvb_str[9], dvb_str[10], dvb_str[11]);
return -EINVAL;
}
/* process the CFTABLE_ENTRY tuples, and any after those */
- while((!end_chain) && (address < 0x1000)) {
- if ((status = dvb_ca_en50221_read_tuple(ca, slot, &address, &tupleType, &tupleLength, tuple)) < 0) return status;
- switch(tupleType) {
- case 0x1B: // CISTPL_CFTABLE_ENTRY
- if (tupleLength < (2+11+17)) break;
+ while ((!end_chain) && (address < 0x1000)) {
+ if ((status = dvb_ca_en50221_read_tuple (ca, slot, &address, &tupleType,
+ &tupleLength, tuple)) < 0)
+ return status;
+ switch (tupleType) {
+ case 0x1B: // CISTPL_CFTABLE_ENTRY
+ if (tupleLength < (2 + 11 + 17))
+ break;
/* if we've already parsed one, just use it */
- if (got_cftableentry) break;
+ if (got_cftableentry)
+ break;
/* get the config option */
ca->slot_info[slot].config_option = tuple[0] & 0x3f;
/* OK, check it contains the correct strings */
- if ((findstr(tuple, tupleLength, "DVB_HOST", 8) == NULL) ||
- (findstr(tuple, tupleLength, "DVB_CI_MODULE", 13) == NULL)) break;
+ if ((findstr (tuple, tupleLength, "DVB_HOST", 8) == NULL) ||
+ (findstr (tuple, tupleLength, "DVB_CI_MODULE", 13) == NULL))
+ break;
got_cftableentry = 1;
break;
- case 0x14: // CISTPL_NO_LINK
+ case 0x14: // CISTPL_NO_LINK
break;
- case 0xFF: // CISTPL_END
+ case 0xFF: // CISTPL_END
end_chain = 1;
break;
- default: /* Unknown tuple type - just skip this tuple and move to the next one */
- dprintk("dvb_ca: Skipping unknown tuple type:0x%x length:0x%x\n", tupleType, tupleLength);
+ default: /* Unknown tuple type - just skip this tuple and move to the next one */
+ dprintk ("dvb_ca: Skipping unknown tuple type:0x%x length:0x%x\n", tupleType, tupleLength);
break;
}
}
- if ((address > 0x1000) || (!got_cftableentry)) return -EINVAL;
+ if ((address > 0x1000) || (!got_cftableentry))
+ return -EINVAL;
- dprintk("Valid DVB CAM detected MANID:%x DEVID:%x CONFIGBASE:0x%x CONFIGOPTION:0x%x\n",
- manfid, devid,
- ca->slot_info[slot].config_base,
- ca->slot_info[slot].config_option);
+ dprintk ("Valid DVB CAM detected MANID:%x DEVID:%x CONFIGBASE:0x%x CONFIGOPTION:0x%x\n",
+ manfid, devid, ca->slot_info[slot].config_base, ca->slot_info[slot].config_option);
// success!
return 0;
@@ -511,19 +554,22 @@ static int dvb_ca_en50221_parse_attributes(struct dvb_ca_private* ca, int slot)
* @param ca CA instance.
* @param slot Slot containing the CAM.
*/
-static int dvb_ca_en50221_set_configoption(struct dvb_ca_private* ca, int slot)
+static int dvb_ca_en50221_set_configoption (struct dvb_ca_private *ca, int slot)
{
int configoption;
dprintk ("%s\n", __FUNCTION__);
/* set the config option */
- ca->pub->write_attribute_mem(ca->pub, slot, ca->slot_info[slot].config_base, ca->slot_info[slot].config_option);
+ ca->pub->write_attribute_mem (ca->pub, slot,
+ ca->slot_info[slot].config_base,
+ ca->slot_info[slot].config_option);
/* check it */
- configoption = ca->pub->read_attribute_mem(ca->pub, slot, ca->slot_info[slot].config_base);
- dprintk("Set configoption 0x%x, read configoption 0x%x\n",
- ca->slot_info[slot].config_option, configoption & 0x3f);
+ configoption = ca->pub->read_attribute_mem (ca->pub, slot,
+ ca->slot_info[slot].config_base);
+ dprintk ("Set configoption 0x%x, read configoption 0x%x\n",
+ ca->slot_info[slot].config_option, configoption & 0x3f);
/* fine! */
return 0;
@@ -544,7 +590,8 @@ static int dvb_ca_en50221_set_configoption(struct dvb_ca_private* ca, int slot)
*
* @return Number of bytes read, or < 0 on error
*/
-static int dvb_ca_en50221_read_data(struct dvb_ca_private* ca, int slot, u8* ebuf, int ecount)
+static int dvb_ca_en50221_read_data (struct dvb_ca_private *ca, int slot,
+ u8 * ebuf, int ecount)
{
int bytes_read;
int status;
@@ -555,89 +602,98 @@ static int dvb_ca_en50221_read_data(struct dvb_ca_private* ca, int slot, u8* ebu
/* check if we have space for a link buf in the rx_buffer */
if (ebuf == NULL) {
- int buf_free;
-
- down_read(&ca->slot_info[slot].sem);
- buf_free = dvb_ringbuffer_free(&ca->slot_info[slot].rx_buffer);
- up_read(&ca->slot_info[slot].sem);
-
+ int buf_free;
+
+ down_read (&ca->slot_info[slot].sem);
+ buf_free = dvb_ringbuffer_free (&ca->slot_info[slot].rx_buffer);
+ up_read (&ca->slot_info[slot].sem);
+
if (buf_free < (ca->slot_info[slot].link_buf_size + DVB_RINGBUFFER_PKTHDRSIZE)) {
- status = -EAGAIN;
- goto exit;
+ status = -EAGAIN;
+ goto exit;
}
}
/* check if there is data available */
- if ((status = ca->pub->read_cam_control(ca->pub, slot, CTRLIF_STATUS)) < 0) goto exit;
+ if ((status = ca->pub->read_cam_control (ca->pub, slot, CTRLIF_STATUS)) < 0)
+ goto exit;
if (!(status & STATUSREG_DA)) {
- /* no data */
- status = 0;
- goto exit;
- }
+ /* no data */
+ status = 0;
+ goto exit;
+ }
/* read the amount of data */
- if ((status = ca->pub->read_cam_control(ca->pub, slot, CTRLIF_SIZE_HIGH)) < 0) goto exit;
+ if ((status = ca->pub->read_cam_control (ca->pub, slot, CTRLIF_SIZE_HIGH)) < 0)
+ goto exit;
bytes_read = status << 8;
- if ((status = ca->pub->read_cam_control(ca->pub, slot, CTRLIF_SIZE_LOW)) < 0) goto exit;
+ if ((status = ca->pub->read_cam_control (ca->pub, slot, CTRLIF_SIZE_LOW)) < 0)
+ goto exit;
bytes_read |= status;
/* check it will fit */
if (ebuf == NULL) {
if (bytes_read > ca->slot_info[slot].link_buf_size) {
- printk("dvb_ca adapter %d: CAM tried to send a buffer larger than the link buffer size!\n", ca->dvbdev->adapter->num);
- ca->slot_info[slot].slot_state = DVB_CA_SLOTSTATE_LINKINIT;
+ printk ("dvb_ca adapter %d: CAM tried to send a buffer larger than the link buffer size!\n", ca->dvbdev->adapter->num);
+ ca->slot_info[slot].slot_state =
+ DVB_CA_SLOTSTATE_LINKINIT;
status = -EIO;
- goto exit;
+ goto exit;
}
if (bytes_read < 2) {
- printk("dvb_ca adapter %d: CAM sent a buffer that was less than 2 bytes!\n", ca->dvbdev->adapter->num);
- ca->slot_info[slot].slot_state = DVB_CA_SLOTSTATE_LINKINIT;
+ printk ("dvb_ca adapter %d: CAM sent a buffer that was less than 2 bytes!\n", ca->dvbdev->adapter->num);
+ ca->slot_info[slot].slot_state =
+ DVB_CA_SLOTSTATE_LINKINIT;
status = -EIO;
- goto exit;
+ goto exit;
}
} else {
if (bytes_read > ecount) {
- printk("dvb_ca adapter %d: CAM tried to send a buffer larger than the ecount size!\n", ca->dvbdev->adapter->num);
+ printk ("dvb_ca adapter %d: CAM tried to send a buffer larger than the ecount size!\n", ca->dvbdev->adapter->num);
status = -EIO;
- goto exit;
+ goto exit;
}
}
/* fill the buffer */
- for(i=0; i < bytes_read; i++) {
+ for (i = 0; i < bytes_read; i++) {
/* read byte and check */
- if ((status = ca->pub->read_cam_control(ca->pub, slot, CTRLIF_DATA)) < 0) goto exit;
+ if ((status = ca->pub->read_cam_control (ca->pub, slot,
+ CTRLIF_DATA)) < 0)
+ goto exit;
/* OK, store it in the buffer */
buf[i] = status;
}
/* check for read error (RE should now be 0) */
- if ((status = ca->pub->read_cam_control(ca->pub, slot, CTRLIF_STATUS)) < 0) goto exit;
+ if ((status = ca->pub->read_cam_control (ca->pub, slot, CTRLIF_STATUS)) < 0)
+ goto exit;
if (status & STATUSREG_RE) {
- ca->slot_info[slot].slot_state = DVB_CA_SLOTSTATE_LINKINIT;
- status = -EIO;
- goto exit;
- }
+ ca->slot_info[slot].slot_state = DVB_CA_SLOTSTATE_LINKINIT;
+ status = -EIO;
+ goto exit;
+ }
- /* OK, add it to the receive buffer, or copy into external buffer if supplied */
+ /* OK, add it to the receive buffer, or copy into external buffer if supplied */
if (ebuf == NULL) {
- down_read(&ca->slot_info[slot].sem);
- dvb_ringbuffer_pkt_write(&ca->slot_info[slot].rx_buffer, buf, bytes_read);
- up_read(&ca->slot_info[slot].sem);
+ down_read (&ca->slot_info[slot].sem);
+ dvb_ringbuffer_pkt_write (&ca->slot_info[slot].rx_buffer, buf,
+ bytes_read);
+ up_read (&ca->slot_info[slot].sem);
} else {
- memcpy(ebuf, buf, bytes_read);
+ memcpy (ebuf, buf, bytes_read);
}
-
- dprintk("Received CA packet for slot %i connection id 0x%x last_frag:%i size:0x%x\n", slot, buf[0], (buf[1] & 0x80) == 0, bytes_read);
+
+ dprintk ("Received CA packet for slot %i connection id 0x%x last_frag:%i size:0x%x\n", slot, buf[0], (buf[1] & 0x80) == 0, bytes_read);
/* wake up readers when a last_fragment is received */
if ((buf[1] & 0x80) == 0x00) {
- wake_up_interruptible(&ca->wait_queue);
+ wake_up_interruptible (&ca->wait_queue);
}
- status = bytes_read;
+ status = bytes_read;
-exit:
+ exit:
return status;
}
@@ -654,7 +710,8 @@ exit:
*
* @return Number of bytes written, or < 0 on error.
*/
-static int dvb_ca_en50221_write_data(struct dvb_ca_private* ca, int slot, u8* buf, int bytes_write)
+static int dvb_ca_en50221_write_data (struct dvb_ca_private *ca, int slot,
+ u8 * buf, int bytes_write)
{
int status;
int i;
@@ -663,50 +720,62 @@ static int dvb_ca_en50221_write_data(struct dvb_ca_private* ca, int slot, u8* bu
// sanity check
- if (bytes_write > ca->slot_info[slot].link_buf_size) return -EINVAL;
+ if (bytes_write > ca->slot_info[slot].link_buf_size)
+ return -EINVAL;
/* check if interface is actually waiting for us to read from it, or if a read is in progress */
- if ((status = ca->pub->read_cam_control(ca->pub, slot, CTRLIF_STATUS)) < 0) goto exitnowrite;
- if (status & (STATUSREG_DA|STATUSREG_RE)) {
- status = -EAGAIN;
- goto exitnowrite;
- }
+ if ((status = ca->pub->read_cam_control (ca->pub, slot, CTRLIF_STATUS)) < 0)
+ goto exitnowrite;
+ if (status & (STATUSREG_DA | STATUSREG_RE)) {
+ status = -EAGAIN;
+ goto exitnowrite;
+ }
/* OK, set HC bit */
- if ((status = ca->pub->write_cam_control(ca->pub, slot, CTRLIF_COMMAND, IRQEN | CMDREG_HC)) != 0) goto exit;
+ if ((status = ca->pub->write_cam_control (ca->pub, slot, CTRLIF_COMMAND,
+ IRQEN | CMDREG_HC)) != 0)
+ goto exit;
/* check if interface is still free */
- if ((status = ca->pub->read_cam_control(ca->pub, slot, CTRLIF_STATUS)) < 0) goto exit;
+ if ((status = ca->pub->read_cam_control (ca->pub, slot, CTRLIF_STATUS)) < 0)
+ goto exit;
if (!(status & STATUSREG_FR)) {
- /* it wasn't free => try again later */
- status = -EAGAIN;
- goto exit;
- }
+ /* it wasn't free => try again later */
+ status = -EAGAIN;
+ goto exit;
+ }
/* send the amount of data */
- if ((status = ca->pub->write_cam_control(ca->pub, slot, CTRLIF_SIZE_HIGH, bytes_write >> 8)) != 0) goto exit;
- if ((status = ca->pub->write_cam_control(ca->pub, slot, CTRLIF_SIZE_LOW, bytes_write & 0xff)) != 0) goto exit;
+ if ((status = ca->pub->write_cam_control (ca->pub, slot, CTRLIF_SIZE_HIGH,
+ bytes_write >> 8)) != 0)
+ goto exit;
+ if ((status = ca->pub->write_cam_control (ca->pub, slot, CTRLIF_SIZE_LOW,
+ bytes_write & 0xff)) != 0)
+ goto exit;
/* send the buffer */
- for(i=0; i < bytes_write; i++) {
- if ((status = ca->pub->write_cam_control(ca->pub, slot, CTRLIF_DATA, buf[i])) != 0) goto exit;
+ for (i = 0; i < bytes_write; i++) {
+ if ((status = ca->pub->write_cam_control (ca->pub, slot, CTRLIF_DATA,
+ buf[i])) != 0)
+ goto exit;
}
/* check for write error (WE should now be 0) */
- if ((status = ca->pub->read_cam_control(ca->pub, slot, CTRLIF_STATUS)) < 0) goto exit;
+ if ((status = ca->pub->read_cam_control (ca->pub, slot, CTRLIF_STATUS)) < 0)
+ goto exit;
if (status & STATUSREG_WE) {
- ca->slot_info[slot].slot_state = DVB_CA_SLOTSTATE_LINKINIT;
- status = -EIO;
- goto exit;
- }
+ ca->slot_info[slot].slot_state = DVB_CA_SLOTSTATE_LINKINIT;
+ status = -EIO;
+ goto exit;
+ }
status = bytes_write;
- dprintk("Wrote CA packet for slot %i, connection id 0x%x last_frag:%i size:0x%x\n", slot, buf[0], (buf[1] & 0x80) == 0, bytes_write);
-
-exit:
- ca->pub->write_cam_control(ca->pub, slot, CTRLIF_COMMAND, IRQEN);
+ dprintk ("Wrote CA packet for slot %i, connection id 0x%x last_frag:%i size:0x%x\n", slot, buf[0], (buf[1] & 0x80) == 0, bytes_write);
-exitnowrite:
+ exit:
+ ca->pub->write_cam_control (ca->pub, slot, CTRLIF_COMMAND, IRQEN);
+
+ exitnowrite:
return status;
}
@@ -722,22 +791,23 @@ exitnowrite:
* @param ca CA instance.
* @param slot Slot to shut down.
*/
-static int dvb_ca_en50221_slot_shutdown(struct dvb_ca_private* ca, int slot)
+static int dvb_ca_en50221_slot_shutdown (struct dvb_ca_private *ca, int slot)
{
dprintk ("%s\n", __FUNCTION__);
- down_write(&ca->slot_info[slot].sem);
- ca->pub->slot_shutdown(ca->pub, slot);
+ down_write (&ca->slot_info[slot].sem);
+ ca->pub->slot_shutdown (ca->pub, slot);
ca->slot_info[slot].slot_state = DVB_CA_SLOTSTATE_NONE;
- if (ca->slot_info[slot].rx_buffer.data) vfree(ca->slot_info[slot].rx_buffer.data);
+ if (ca->slot_info[slot].rx_buffer.data)
+ vfree (ca->slot_info[slot].rx_buffer.data);
ca->slot_info[slot].rx_buffer.data = NULL;
- up_write(&ca->slot_info[slot].sem);
+ up_write (&ca->slot_info[slot].sem);
/* need to wake up all processes to check if they're now
trying to write to a defunct CAM */
- wake_up_interruptible(&ca->wait_queue);
+ wake_up_interruptible (&ca->wait_queue);
- dprintk("Slot %i shutdown\n", slot);
+ dprintk ("Slot %i shutdown\n", slot);
/* success */
return 0;
@@ -751,13 +821,14 @@ static int dvb_ca_en50221_slot_shutdown(struct dvb_ca_private* ca, int slot)
* @param slot Slot concerned.
* @param change_type One of the DVB_CA_CAMCHANGE_* values.
*/
-void dvb_ca_en50221_camchange_irq(struct dvb_ca_en50221* pubca, int slot, int change_type)
+void dvb_ca_en50221_camchange_irq (struct dvb_ca_en50221 *pubca, int slot,
+ int change_type)
{
- struct dvb_ca_private* ca = (struct dvb_ca_private*) pubca->private;
+ struct dvb_ca_private *ca = (struct dvb_ca_private *) pubca->private;
- dprintk("CAMCHANGE IRQ slot:%i change_type:%i\n", slot, change_type);
+ dprintk ("CAMCHANGE IRQ slot:%i change_type:%i\n", slot, change_type);
- switch(change_type) {
+ switch (change_type) {
case DVB_CA_EN50221_CAMCHANGE_REMOVED:
case DVB_CA_EN50221_CAMCHANGE_INSERTED:
break;
@@ -767,8 +838,8 @@ void dvb_ca_en50221_camchange_irq(struct dvb_ca_en50221* pubca, int slot, int ch
}
ca->slot_info[slot].camchange_type = change_type;
- atomic_inc(&ca->slot_info[slot].camchange_count);
- dvb_ca_en50221_thread_wakeup(ca);
+ atomic_inc (&ca->slot_info[slot].camchange_count);
+ dvb_ca_en50221_thread_wakeup (ca);
}
@@ -778,15 +849,15 @@ void dvb_ca_en50221_camchange_irq(struct dvb_ca_en50221* pubca, int slot, int ch
* @param ca CA instance.
* @param slot Slot concerned.
*/
-void dvb_ca_en50221_camready_irq(struct dvb_ca_en50221* pubca, int slot)
+void dvb_ca_en50221_camready_irq (struct dvb_ca_en50221 *pubca, int slot)
{
- struct dvb_ca_private* ca = (struct dvb_ca_private*) pubca->private;
+ struct dvb_ca_private *ca = (struct dvb_ca_private *) pubca->private;
- dprintk("CAMREADY IRQ slot:%i\n", slot);
+ dprintk ("CAMREADY IRQ slot:%i\n", slot);
if (ca->slot_info[slot].slot_state == DVB_CA_SLOTSTATE_WAITREADY) {
ca->slot_info[slot].slot_state = DVB_CA_SLOTSTATE_VALIDATE;
- dvb_ca_en50221_thread_wakeup(ca);
+ dvb_ca_en50221_thread_wakeup (ca);
}
}
@@ -797,24 +868,25 @@ void dvb_ca_en50221_camready_irq(struct dvb_ca_en50221* pubca, int slot)
* @param ca CA instance.
* @param slot Slot concerned.
*/
-void dvb_ca_en50221_frda_irq(struct dvb_ca_en50221* pubca, int slot)
+void dvb_ca_en50221_frda_irq (struct dvb_ca_en50221 *pubca, int slot)
{
- struct dvb_ca_private* ca = (struct dvb_ca_private*) pubca->private;
+ struct dvb_ca_private *ca = (struct dvb_ca_private *) pubca->private;
int flags;
- dprintk("FR/DA IRQ slot:%i\n", slot);
+ dprintk ("FR/DA IRQ slot:%i\n", slot);
- switch(ca->slot_info[slot].slot_state) {
+ switch (ca->slot_info[slot].slot_state) {
case DVB_CA_SLOTSTATE_LINKINIT:
- flags = ca->pub->read_cam_control(pubca, slot, CTRLIF_STATUS);
+ flags = ca->pub->read_cam_control (pubca, slot, CTRLIF_STATUS);
if (flags & STATUSREG_DA) {
- dprintk("CAM supports DA IRQ\n");
+ dprintk ("CAM supports DA IRQ\n");
ca->slot_info[slot].da_irq_supported = 1;
- }
+ }
break;
case DVB_CA_SLOTSTATE_RUNNING:
- if (ca->open) dvb_ca_en50221_read_data(ca, slot, NULL, 0);
+ if (ca->open)
+ dvb_ca_en50221_read_data (ca, slot, NULL, 0);
break;
}
}
@@ -829,14 +901,14 @@ void dvb_ca_en50221_frda_irq(struct dvb_ca_en50221* pubca, int slot)
*
* @param ca CA instance.
*/
-static void dvb_ca_en50221_thread_wakeup(struct dvb_ca_private* ca)
+static void dvb_ca_en50221_thread_wakeup (struct dvb_ca_private *ca)
{
dprintk ("%s\n", __FUNCTION__);
ca->wakeup = 1;
- mb();
- wake_up_interruptible(&ca->thread_queue);
+ mb ();
+ wake_up_interruptible (&ca->thread_queue);
}
/**
@@ -844,14 +916,15 @@ static void dvb_ca_en50221_thread_wakeup(struct dvb_ca_private* ca)
*
* @param ca CA instance.
*/
-static int dvb_ca_en50221_thread_should_wakeup(struct dvb_ca_private* ca)
+static int dvb_ca_en50221_thread_should_wakeup (struct dvb_ca_private *ca)
{
if (ca->wakeup) {
ca->wakeup = 0;
return 1;
}
- if (ca->exit) return 1;
-
+ if (ca->exit)
+ return 1;
+
return 0;
}
@@ -861,20 +934,20 @@ static int dvb_ca_en50221_thread_should_wakeup(struct dvb_ca_private* ca)
*
* @param ca CA instance.
*/
-static void dvb_ca_en50221_thread_update_delay(struct dvb_ca_private* ca)
+static void dvb_ca_en50221_thread_update_delay (struct dvb_ca_private *ca)
{
int delay;
int curdelay = 100000000;
int slot;
- for(slot=0; slot < ca->slot_count; slot++) {
- switch(ca->slot_info[slot].slot_state) {
+ for (slot = 0; slot < ca->slot_count; slot++) {
+ switch (ca->slot_info[slot].slot_state) {
default:
case DVB_CA_SLOTSTATE_NONE:
case DVB_CA_SLOTSTATE_INVALID:
- delay = HZ*60;
+ delay = HZ * 60;
if (!(ca->flags & DVB_CA_EN50221_FLAG_IRQ_CAMCHANGE)) {
- delay = HZ/10;
+ delay = HZ / 10;
}
break;
@@ -883,24 +956,25 @@ 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;
break;
case DVB_CA_SLOTSTATE_RUNNING:
- delay = HZ*60;
+ delay = HZ * 60;
if (!(ca->flags & DVB_CA_EN50221_FLAG_IRQ_CAMCHANGE)) {
- delay = HZ/10;
+ delay = HZ / 10;
}
if (ca->open) {
if ((!ca->slot_info[slot].da_irq_supported) ||
(!(ca->flags & DVB_CA_EN50221_FLAG_IRQ_DA))) {
- delay = HZ/100;
+ delay = HZ / 100;
}
}
break;
}
- if (delay < curdelay) curdelay = delay;
+ if (delay < curdelay)
+ curdelay = delay;
}
ca->delay = curdelay;
@@ -911,19 +985,20 @@ static void dvb_ca_en50221_thread_update_delay(struct dvb_ca_private* ca)
/**
* Kernel thread which monitors CA slots for CAM changes, and performs data transfers.
*/
-static int dvb_ca_en50221_thread(void* data)
+static int dvb_ca_en50221_thread (void *data)
{
- struct dvb_ca_private *ca = (struct dvb_ca_private*) data;
+ struct dvb_ca_private *ca = (struct dvb_ca_private *) data;
char name[15];
int slot;
int flags;
int pktcount;
- void* rxbuf;
+ void *rxbuf;
dprintk ("%s\n", __FUNCTION__);
/* setup kernel thread */
- snprintf(name, sizeof(name), "kdvb-ca-%i:%i", ca->dvbdev->adapter->num, ca->dvbdev->id);
+ snprintf (name, sizeof (name), "kdvb-ca-%i:%i",
+ ca->dvbdev->adapter->num, ca->dvbdev->id);
lock_kernel ();
daemonize (name);
@@ -931,13 +1006,15 @@ static int dvb_ca_en50221_thread(void* data)
unlock_kernel ();
/* choose the correct initial delay */
- dvb_ca_en50221_thread_update_delay(ca);
+ dvb_ca_en50221_thread_update_delay (ca);
/* main loop */
- while(!ca->exit) {
+ while (!ca->exit) {
/* sleep for a bit */
if (!ca->wakeup) {
- flags = wait_event_interruptible_timeout(ca->thread_queue, dvb_ca_en50221_thread_should_wakeup(ca), ca->delay);
+ flags = wait_event_interruptible_timeout (ca->thread_queue,
+ dvb_ca_en50221_thread_should_wakeup(ca),
+ ca->delay);
if ((flags == -ERESTARTSYS) || ca->exit) {
/* got signal or quitting */
break;
@@ -946,12 +1023,13 @@ static int dvb_ca_en50221_thread(void* data)
ca->wakeup = 0;
/* go through all the slots processing them */
- for(slot=0; slot < ca->slot_count; slot++) {
+ for (slot = 0; slot < ca->slot_count; slot++) {
// check the cam status + deal with CAMCHANGEs
- while(dvb_ca_en50221_check_camstatus(ca, slot)) {
+ while (dvb_ca_en50221_check_camstatus (ca, slot)) {
/* clear down an old CI slot if necessary */
- if (ca->slot_info[slot].slot_state != DVB_CA_SLOTSTATE_NONE) dvb_ca_en50221_slot_shutdown(ca, slot);
+ if (ca->slot_info[slot].slot_state != DVB_CA_SLOTSTATE_NONE)
+ dvb_ca_en50221_slot_shutdown (ca, slot);
/* if a CAM is NOW present, initialise it */
if (ca->slot_info[slot].camchange_type == DVB_CA_EN50221_CAMCHANGE_INSERTED) {
@@ -959,12 +1037,12 @@ static int dvb_ca_en50221_thread(void* data)
}
/* we've handled one CAMCHANGE */
- dvb_ca_en50221_thread_update_delay(ca);
- atomic_dec(&ca->slot_info[slot].camchange_count);
+ dvb_ca_en50221_thread_update_delay (ca);
+ atomic_dec (&ca->slot_info[slot].camchange_count);
}
// CAM state machine
- switch(ca->slot_info[slot].slot_state) {
+ switch (ca->slot_info[slot].slot_state) {
case DVB_CA_SLOTSTATE_NONE:
case DVB_CA_SLOTSTATE_INVALID:
// no action needed
@@ -972,40 +1050,41 @@ static int dvb_ca_en50221_thread(void* data)
case DVB_CA_SLOTSTATE_UNINITIALISED:
ca->slot_info[slot].slot_state = DVB_CA_SLOTSTATE_WAITREADY;
- ca->pub->slot_reset(ca->pub, slot);
+ ca->pub->slot_reset (ca->pub, slot);
ca->slot_info[slot].timeout = jiffies + (INIT_TIMEOUT_SECS * HZ);
break;
case DVB_CA_SLOTSTATE_WAITREADY:
if (time_after(jiffies, ca->slot_info[slot].timeout)) {
- printk("dvb_ca adaptor %d: PC card did not respond :(\n", ca->dvbdev->adapter->num);
+ printk ("dvb_ca adaptor %d: PC card did not respond :(\n", ca->dvbdev->adapter->num);
ca->slot_info[slot].slot_state = DVB_CA_SLOTSTATE_INVALID;
- dvb_ca_en50221_thread_update_delay(ca);
+ dvb_ca_en50221_thread_update_delay (ca);
break;
}
// no other action needed; will automatically change state when ready
break;
case DVB_CA_SLOTSTATE_VALIDATE:
- if (dvb_ca_en50221_parse_attributes(ca, slot) != 0) {
- printk("dvb_ca adapter %d: Invalid PC card inserted :(\n", ca->dvbdev->adapter->num);
+ if (dvb_ca_en50221_parse_attributes (ca, slot)
+ != 0) {
+ printk ("dvb_ca adapter %d: Invalid PC card inserted :(\n", ca->dvbdev->adapter->num);
ca->slot_info[slot].slot_state = DVB_CA_SLOTSTATE_INVALID;
- dvb_ca_en50221_thread_update_delay(ca);
+ dvb_ca_en50221_thread_update_delay (ca);
break;
}
- if (dvb_ca_en50221_set_configoption(ca, slot) != 0) {
- printk("dvb_ca adapter %d: Unable to initialise CAM :(\n", ca->dvbdev->adapter->num);
+ if (dvb_ca_en50221_set_configoption (ca, slot) != 0) {
+ printk ("dvb_ca adapter %d: Unable to initialise CAM :(\n", ca->dvbdev->adapter->num);
ca->slot_info[slot].slot_state = DVB_CA_SLOTSTATE_INVALID;
- dvb_ca_en50221_thread_update_delay(ca);
+ dvb_ca_en50221_thread_update_delay (ca);
break;
}
- if (ca->pub->write_cam_control(ca->pub, slot, CTRLIF_COMMAND, CMDREG_RS) != 0) {
- printk("dvb_ca adapter %d: Unable to reset CAM IF\n", ca->dvbdev->adapter->num);
+ if (ca->pub->write_cam_control (ca->pub, slot, CTRLIF_COMMAND, CMDREG_RS) != 0) {
+ printk ("dvb_ca adapter %d: Unable to reset CAM IF\n", ca->dvbdev->adapter->num);
ca->slot_info[slot].slot_state = DVB_CA_SLOTSTATE_INVALID;
- dvb_ca_en50221_thread_update_delay(ca);
+ dvb_ca_en50221_thread_update_delay (ca);
break;
}
- dprintk("DVB CAM validated successfully\n");
+ dprintk ("DVB CAM validated successfully\n");
ca->slot_info[slot].timeout = jiffies + (INIT_TIMEOUT_SECS * HZ);
ca->slot_info[slot].slot_state = DVB_CA_SLOTSTATE_WAITFR;
@@ -1014,13 +1093,13 @@ static int dvb_ca_en50221_thread(void* data)
case DVB_CA_SLOTSTATE_WAITFR:
if (time_after(jiffies, ca->slot_info[slot].timeout)) {
- printk("dvb_ca adapter %d: DVB CAM did not respond :(\n", ca->dvbdev->adapter->num);
+ printk ("dvb_ca adapter %d: DVB CAM did not respond :(\n", ca->dvbdev->adapter->num);
ca->slot_info[slot].slot_state = DVB_CA_SLOTSTATE_INVALID;
- dvb_ca_en50221_thread_update_delay(ca);
+ dvb_ca_en50221_thread_update_delay (ca);
break;
}
- flags = ca->pub->read_cam_control(ca->pub, slot, CTRLIF_STATUS);
+ flags = ca->pub->read_cam_control (ca->pub, slot, CTRLIF_STATUS);
if (flags & STATUSREG_FR) {
ca->slot_info[slot].slot_state = DVB_CA_SLOTSTATE_LINKINIT;
ca->wakeup = 1;
@@ -1028,38 +1107,41 @@ static int dvb_ca_en50221_thread(void* data)
break;
case DVB_CA_SLOTSTATE_LINKINIT:
- if (dvb_ca_en50221_link_init(ca, slot) != 0) {
- printk("dvb_ca adapter %d: DVB CAM link initialisation failed :(\n", ca->dvbdev->adapter->num);
+ if (dvb_ca_en50221_link_init (ca, slot) != 0) {
+ printk ("dvb_ca adapter %d: DVB CAM link initialisation failed :(\n", ca->dvbdev->adapter->num);
ca->slot_info[slot].slot_state = DVB_CA_SLOTSTATE_INVALID;
- dvb_ca_en50221_thread_update_delay(ca);
+ dvb_ca_en50221_thread_update_delay (ca);
break;
}
- rxbuf = vmalloc(RX_BUFFER_SIZE);
+ rxbuf = vmalloc (RX_BUFFER_SIZE);
if (rxbuf == NULL) {
- printk("dvb_ca adapter %d: Unable to allocate CAM rx buffer :(\n", ca->dvbdev->adapter->num);
+ printk ("dvb_ca adapter %d: Unable to allocate CAM rx buffer :(\n", ca->dvbdev->adapter->num);
ca->slot_info[slot].slot_state = DVB_CA_SLOTSTATE_INVALID;
- dvb_ca_en50221_thread_update_delay(ca);
+ dvb_ca_en50221_thread_update_delay (ca);
break;
}
- dvb_ringbuffer_init(&ca->slot_info[slot].rx_buffer, rxbuf, RX_BUFFER_SIZE);
+ dvb_ringbuffer_init (&ca->slot_info[slot].rx_buffer, rxbuf, RX_BUFFER_SIZE);
- ca->pub->slot_ts_enable(ca->pub, slot);
+ ca->pub->slot_ts_enable (ca->pub, slot);
ca->slot_info[slot].slot_state = DVB_CA_SLOTSTATE_RUNNING;
- dvb_ca_en50221_thread_update_delay(ca);
- printk("dvb_ca adapter %d: DVB CAM detected and initialised successfully\n", ca->dvbdev->adapter->num);
+ dvb_ca_en50221_thread_update_delay (ca);
+ printk ("dvb_ca adapter %d: DVB CAM detected and initialised successfully\n", ca->dvbdev->adapter->num);
break;
case DVB_CA_SLOTSTATE_RUNNING:
- if (!ca->open) break;
-
- // no need to poll if the CAM supports IRQs
- if (ca->slot_info[slot].da_irq_supported) break;
+ if (!ca->open)
+ break;
- // poll mode
+ // no need to poll if the CAM supports IRQs
+ if (ca->slot_info[slot].da_irq_supported)
+ break;
+
+ // poll mode
pktcount = 0;
- while(dvb_ca_en50221_read_data(ca, slot, NULL, 0) > 0) {
- if (!ca->open) break;
+ while (dvb_ca_en50221_read_data(ca, slot, NULL, 0) > 0) {
+ if (!ca->open)
+ break;
/* if a CAMCHANGE occurred at some point, do not do any more processing of this slot */
if (dvb_ca_en50221_check_camstatus(ca, slot)) {
@@ -1082,7 +1164,7 @@ static int dvb_ca_en50221_thread(void* data)
/* completed */
ca->thread_pid = 0;
- mb();
+ mb ();
wake_up_interruptible (&ca->thread_queue);
return 0;
}
@@ -1103,43 +1185,44 @@ static int dvb_ca_en50221_thread(void* data)
*
* @return 0 on success, <0 on error.
*/
-static int dvb_ca_en50221_io_do_ioctl(struct inode *inode, struct file *file, unsigned int cmd, void *parg)
+static int dvb_ca_en50221_io_do_ioctl (struct inode *inode, struct file *file,
+ unsigned int cmd, void *parg)
{
- struct dvb_device* dvbdev=(struct dvb_device*) file->private_data;
- struct dvb_ca_private* ca = (struct dvb_ca_private*) dvbdev->priv;
- int err=0;
+ struct dvb_device *dvbdev = (struct dvb_device *) file->private_data;
+ struct dvb_ca_private *ca = (struct dvb_ca_private *) dvbdev->priv;
+ int err = 0;
int slot;
dprintk ("%s\n", __FUNCTION__);
switch (cmd) {
case CA_RESET:
- for(slot = 0; slot < ca->slot_count; slot++) {
+ for (slot = 0; slot < ca->slot_count; slot++) {
if (ca->slot_info[slot].slot_state != DVB_CA_SLOTSTATE_NONE) {
- dvb_ca_en50221_slot_shutdown(ca, slot);
+ dvb_ca_en50221_slot_shutdown (ca, slot);
if (ca->flags & DVB_CA_EN50221_FLAG_IRQ_CAMCHANGE)
- dvb_ca_en50221_camchange_irq(ca->pub, slot, DVB_CA_EN50221_CAMCHANGE_INSERTED);
+ dvb_ca_en50221_camchange_irq (ca->pub,slot,DVB_CA_EN50221_CAMCHANGE_INSERTED);
+ else
+ ca->slot_info[slot].slot_state = DVB_CA_SLOTSTATE_NONE;
}
}
ca->next_read_slot = 0;
- dvb_ca_en50221_thread_wakeup(ca);
+ dvb_ca_en50221_thread_wakeup (ca);
break;
- case CA_GET_CAP:
- {
- struct ca_caps *caps = (struct ca_caps*) parg;
+ case CA_GET_CAP: {
+ struct ca_caps *caps = (struct ca_caps *) parg;
- caps->slot_num=ca->slot_count;
- caps->slot_type=CA_CI_LINK;
- caps->descr_num=0;
- caps->descr_type=0;
+ caps->slot_num = ca->slot_count;
+ caps->slot_type = CA_CI_LINK;
+ caps->descr_num = 0;
+ caps->descr_type = 0;
break;
}
-
- case CA_GET_SLOT_INFO:
- {
- struct ca_slot_info *info=(struct ca_slot_info *)parg;
+ case CA_GET_SLOT_INFO: {
+ struct ca_slot_info *info =
+ (struct ca_slot_info *) parg;
if ((info->num > ca->slot_count) || (info->num < 0))
return -EINVAL;
@@ -1157,7 +1240,7 @@ static int dvb_ca_en50221_io_do_ioctl(struct inode *inode, struct file *file, un
}
default:
- err=-EINVAL;
+ err = -EINVAL;
break;
}
@@ -1175,9 +1258,10 @@ static int dvb_ca_en50221_io_do_ioctl(struct inode *inode, struct file *file, un
*
* @return 0 on success, <0 on error.
*/
-static int dvb_ca_en50221_io_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg)
+static int dvb_ca_en50221_io_ioctl (struct inode *inode, struct file *file,
+ unsigned int cmd, unsigned long arg)
{
- return dvb_usercopy(inode, file, cmd, arg, dvb_ca_en50221_io_do_ioctl);
+ return dvb_usercopy (inode, file, cmd, arg, dvb_ca_en50221_io_do_ioctl);
}
@@ -1191,10 +1275,12 @@ static int dvb_ca_en50221_io_ioctl(struct inode *inode, struct file *file, unsig
*
* @return Number of bytes read, or <0 on error.
*/
-static ssize_t dvb_ca_en50221_io_write(struct file *file, const char __user *buf, size_t count, loff_t *ppos)
+static ssize_t dvb_ca_en50221_io_write (struct file *file,
+ const char __user * buf, size_t count,
+ loff_t * ppos)
{
- struct dvb_device *dvbdev=(struct dvb_device *) file->private_data;
- struct dvb_ca_private *ca=(struct dvb_ca_private*) dvbdev->priv;
+ struct dvb_device *dvbdev = (struct dvb_device *) file->private_data;
+ struct dvb_ca_private *ca = (struct dvb_ca_private *) dvbdev->priv;
u8 slot, connection_id;
int status;
char fragbuf[HOST_LINK_BUF_SIZE];
@@ -1206,48 +1292,55 @@ static ssize_t dvb_ca_en50221_io_write(struct file *file, const char __user *buf
dprintk ("%s\n", __FUNCTION__);
/* Incoming packet has a 2 byte header. hdr[0] = slot_id, hdr[1] = connection_id */
- if (count < 2) return -EINVAL;
+ if (count < 2)
+ return -EINVAL;
/* extract slot & connection id */
- if (copy_from_user(&slot, buf, 1)) return -EFAULT;
- if (copy_from_user(&connection_id, buf+1, 1)) return -EFAULT;
- buf+=2;
- count-=2;
+ if (copy_from_user (&slot, buf, 1))
+ return -EFAULT;
+ if (copy_from_user (&connection_id, buf + 1, 1))
+ return -EFAULT;
+ buf += 2;
+ count -= 2;
/* check if the slot is actually running */
- if (ca->slot_info[slot].slot_state != DVB_CA_SLOTSTATE_RUNNING) return -EINVAL;
+ if (ca->slot_info[slot].slot_state != DVB_CA_SLOTSTATE_RUNNING)
+ return -EINVAL;
/* fragment the packets & store in the buffer */
- while(fragpos < count) {
+ while (fragpos < count) {
fraglen = ca->slot_info[slot].link_buf_size - 2;
- if ((count - fragpos) < fraglen) fraglen = count - fragpos;
+ if ((count - fragpos) < fraglen)
+ fraglen = count - fragpos;
fragbuf[0] = connection_id;
fragbuf[1] = ((fragpos + fraglen) < count) ? 0x80 : 0x00;
- if ((status = copy_from_user(fragbuf+2, buf+fragpos, fraglen)) != 0) goto exit;
-
- timeout = jiffies + HZ/2;
- written = 0;
- while(!time_after(jiffies, timeout)) {
- status = dvb_ca_en50221_write_data(ca, slot, fragbuf, fraglen+2);
- if (status == (fraglen+2)) {
- written = 1;
- break;
- }
- if (status != -EAGAIN) goto exit;
-
- msleep(1);
+ if ((status = copy_from_user (fragbuf + 2, buf + fragpos, fraglen)) != 0)
+ goto exit;
+
+ timeout = jiffies + HZ / 2;
+ written = 0;
+ while (!time_after (jiffies, timeout)) {
+ status = dvb_ca_en50221_write_data (ca, slot, fragbuf, fraglen + 2);
+ if (status == (fraglen + 2)) {
+ written = 1;
+ break;
+ }
+ if (status != -EAGAIN)
+ goto exit;
+
+ msleep (1);
+ }
+ if (!written) {
+ status = -EIO;
+ goto exit;
}
- if (!written) {
- status = -EIO;
- goto exit;
- }
fragpos += fraglen;
}
status = count + 2;
-exit:
+ exit:
return status;
}
@@ -1255,7 +1348,8 @@ exit:
/**
* Condition for waking up in dvb_ca_en50221_io_read_condition
*/
-static int dvb_ca_en50221_io_read_condition(struct dvb_ca_private* ca, int* result, int* _slot)
+static int dvb_ca_en50221_io_read_condition (struct dvb_ca_private *ca,
+ int *result, int *_slot)
{
int slot;
int slot_count = 0;
@@ -1266,27 +1360,30 @@ static int dvb_ca_en50221_io_read_condition(struct dvb_ca_private* ca, int* resu
u8 hdr[2];
slot = ca->next_read_slot;
- while((slot_count < ca->slot_count) && (!found)) {
- if (ca->slot_info[slot].slot_state != DVB_CA_SLOTSTATE_RUNNING) goto nextslot;
+ while ((slot_count < ca->slot_count) && (!found)) {
+ if (ca->slot_info[slot].slot_state != DVB_CA_SLOTSTATE_RUNNING)
+ goto nextslot;
- down_read(&ca->slot_info[slot].sem);
+ down_read (&ca->slot_info[slot].sem);
- 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);
- if (connection_id == -1) connection_id = hdr[0];
+ 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);
+ if (connection_id == -1)
+ connection_id = hdr[0];
if ((hdr[0] == connection_id) && ((hdr[1] & 0x80) == 0)) {
*_slot = slot;
found = 1;
break;
}
- idx = dvb_ringbuffer_pkt_next(&ca->slot_info[slot].rx_buffer, idx, &fraglen);
+ idx = dvb_ringbuffer_pkt_next (&ca->slot_info[slot].rx_buffer, idx, &fraglen);
}
- if (!found) up_read(&ca->slot_info[slot].sem);
+ if (!found)
+ up_read (&ca->slot_info[slot].sem);
-nextslot:
+ nextslot:
slot = (slot + 1) % ca->slot_count;
slot_count++;
}
@@ -1306,10 +1403,11 @@ nextslot:
*
* @return Number of bytes read, or <0 on error.
*/
-static ssize_t dvb_ca_en50221_io_read(struct file *file, char __user *buf, size_t count, loff_t *ppos)
+static ssize_t dvb_ca_en50221_io_read (struct file *file, char __user * buf,
+ size_t count, loff_t * ppos)
{
- struct dvb_device *dvbdev=(struct dvb_device *) file->private_data;
- struct dvb_ca_private *ca=(struct dvb_ca_private*) dvbdev->priv;
+ struct dvb_device *dvbdev = (struct dvb_device *) file->private_data;
+ struct dvb_ca_private *ca = (struct dvb_ca_private *) dvbdev->priv;
int status;
int result = 0;
u8 hdr[2];
@@ -1324,33 +1422,39 @@ static ssize_t dvb_ca_en50221_io_read(struct file *file, char __user *buf, size_
dprintk ("%s\n", __FUNCTION__);
/* Outgoing packet has a 2 byte header. hdr[0] = slot_id, hdr[1] = connection_id */
- if (count < 2) return -EINVAL;
+ if (count < 2)
+ return -EINVAL;
/* wait for some data */
- if ((status = dvb_ca_en50221_io_read_condition(ca, &result, &slot)) == 0) {
+ if ((status = dvb_ca_en50221_io_read_condition (ca, &result, &slot)) == 0) {
/* if we're in nonblocking mode, exit immediately */
- if (file->f_flags & O_NONBLOCK) return -EWOULDBLOCK;
+ if (file->f_flags & O_NONBLOCK)
+ return -EWOULDBLOCK;
/* wait for some data */
- status = wait_event_interruptible(ca->wait_queue, dvb_ca_en50221_io_read_condition(ca, &result, &slot));
+ status = wait_event_interruptible (ca->wait_queue,
+ dvb_ca_en50221_io_read_condition(ca, &result, &slot));
}
if ((status < 0) || (result < 0)) {
- if (result) return result;
+ if (result)
+ return result;
return status;
}
- idx = dvb_ringbuffer_pkt_next(&ca->slot_info[slot].rx_buffer, -1, &fraglen);
+ idx = dvb_ringbuffer_pkt_next (&ca->slot_info[slot].rx_buffer, -1,
+ &fraglen);
pktlen = 2;
do {
if (idx == -1) {
- printk("dvb_ca adapter %d: BUG: read packet ended before last_fragment encountered\n", ca->dvbdev->adapter->num);
+ printk ("dvb_ca adapter %d: BUG: read packet ended before last_fragment encountered\n", ca->dvbdev->adapter->num);
status = -EIO;
goto exit;
}
- dvb_ringbuffer_pkt_read(&ca->slot_info[slot].rx_buffer, idx, 0, hdr, 2, 0);
- if (connection_id == -1) connection_id = hdr[0];
+ dvb_ringbuffer_pkt_read (&ca->slot_info[slot].rx_buffer, idx, 0, hdr, 2, 0);
+ if (connection_id == -1)
+ connection_id = hdr[0];
if (hdr[0] == connection_id) {
if (pktlen < count) {
if ((pktlen + fraglen - 2) > count) {
@@ -1359,29 +1463,35 @@ static ssize_t dvb_ca_en50221_io_read(struct file *file, char __user *buf, size_
fraglen -= 2;
}
- if ((status = dvb_ringbuffer_pkt_read(&ca->slot_info[slot].rx_buffer, idx, 2, buf + pktlen, fraglen, 1)) < 0) {
+ if ((status =
+ dvb_ringbuffer_pkt_read (&ca->slot_info[slot].rx_buffer, idx, 2,
+ buf + pktlen, fraglen, 1)) < 0) {
goto exit;
}
pktlen += fraglen;
}
- if ((hdr[1] & 0x80) == 0) last_fragment = 1;
+ if ((hdr[1] & 0x80) == 0)
+ last_fragment = 1;
dispose = 1;
}
- idx2 = dvb_ringbuffer_pkt_next(&ca->slot_info[slot].rx_buffer, idx, &fraglen);
- if (dispose) dvb_ringbuffer_pkt_dispose(&ca->slot_info[slot].rx_buffer, idx);
+ idx2 = dvb_ringbuffer_pkt_next (&ca->slot_info[slot].rx_buffer,
+ idx, &fraglen);
+ if (dispose)
+ dvb_ringbuffer_pkt_dispose (&ca->slot_info[slot].rx_buffer, idx);
idx = idx2;
dispose = 0;
} while (!last_fragment);
hdr[0] = slot;
hdr[1] = connection_id;
- if ((status = copy_to_user(buf, hdr, 2)) != 0) goto exit;
+ if ((status = copy_to_user (buf, hdr, 2)) != 0)
+ goto exit;
status = pktlen;
-exit:
- up_read(&ca->slot_info[slot].sem);
+ exit:
+ up_read (&ca->slot_info[slot].sem);
return status;
}
@@ -1394,30 +1504,30 @@ exit:
*
* @return 0 on success, <0 on failure.
*/
-static int dvb_ca_en50221_io_open(struct inode *inode, struct file *file)
+static int dvb_ca_en50221_io_open (struct inode *inode, struct file *file)
{
struct dvb_device *dvbdev = (struct dvb_device *) file->private_data;
- struct dvb_ca_private *ca = (struct dvb_ca_private*) dvbdev->priv;
+ struct dvb_ca_private *ca = (struct dvb_ca_private *) dvbdev->priv;
int err;
int i;
dprintk ("%s\n", __FUNCTION__);
- err=dvb_generic_open(inode, file);
- if (err<0)
+ err = dvb_generic_open (inode, file);
+ if (err < 0)
return err;
- for(i=0; i< ca->slot_count; i++) {
+ for (i = 0; i < ca->slot_count; i++) {
if (ca->slot_info[i].slot_state == DVB_CA_SLOTSTATE_RUNNING) {
- down_write(&ca->slot_info[i].sem);
- dvb_ringbuffer_flush(&ca->slot_info[i].rx_buffer);
- up_write(&ca->slot_info[i].sem);
+ down_write (&ca->slot_info[i].sem);
+ dvb_ringbuffer_flush (&ca->slot_info[i].rx_buffer);
+ up_write (&ca->slot_info[i].sem);
}
}
ca->open = 1;
- dvb_ca_en50221_thread_update_delay(ca);
- dvb_ca_en50221_thread_wakeup(ca);
+ dvb_ca_en50221_thread_update_delay (ca);
+ dvb_ca_en50221_thread_wakeup (ca);
return 0;
}
@@ -1431,20 +1541,20 @@ static int dvb_ca_en50221_io_open(struct inode *inode, struct file *file)
*
* @return 0 on success, <0 on failure.
*/
-static int dvb_ca_en50221_io_release(struct inode *inode, struct file *file)
+static int dvb_ca_en50221_io_release (struct inode *inode, struct file *file)
{
- struct dvb_device *dvbdev=(struct dvb_device *) file->private_data;
- struct dvb_ca_private *ca=(struct dvb_ca_private*) dvbdev->priv;
+ struct dvb_device *dvbdev = (struct dvb_device *) file->private_data;
+ struct dvb_ca_private *ca = (struct dvb_ca_private *) dvbdev->priv;
int err;
dprintk ("%s\n", __FUNCTION__);
/* mark the CA device as closed */
ca->open = 0;
- dvb_ca_en50221_thread_update_delay(ca);
+ dvb_ca_en50221_thread_update_delay (ca);
- err=dvb_generic_release(inode, file);
- if (err<0)
+ err = dvb_generic_release (inode, file);
+ if (err < 0)
return err;
return 0;
}
@@ -1458,29 +1568,31 @@ static int dvb_ca_en50221_io_release(struct inode *inode, struct file *file)
*
* @return Standard poll mask.
*/
-static unsigned int dvb_ca_en50221_io_poll(struct file *file, poll_table *wait)
+static unsigned int dvb_ca_en50221_io_poll (struct file *file,
+ poll_table * wait)
{
- struct dvb_device* dvbdev = (struct dvb_device*) file->private_data;
- struct dvb_ca_private* ca = (struct dvb_ca_private*) dvbdev->priv;
- unsigned int mask=0;
+ struct dvb_device *dvbdev = (struct dvb_device *) file->private_data;
+ struct dvb_ca_private *ca = (struct dvb_ca_private *) dvbdev->priv;
+ unsigned int mask = 0;
int slot;
int result = 0;
dprintk ("%s\n", __FUNCTION__);
- if (dvb_ca_en50221_io_read_condition(ca, &result, &slot) == 1) {
- up_read(&ca->slot_info[slot].sem);
+ if (dvb_ca_en50221_io_read_condition (ca, &result, &slot) == 1) {
+ up_read (&ca->slot_info[slot].sem);
mask |= POLLIN;
}
/* if there is something, return now */
- if (mask) return mask;
+ if (mask)
+ return mask;
/* wait for something to happen */
- poll_wait(file, &ca->wait_queue, wait);
+ poll_wait (file, &ca->wait_queue, wait);
- if (dvb_ca_en50221_io_read_condition(ca, &result, &slot) == 1) {
- up_read(&ca->slot_info[slot].sem);
+ if (dvb_ca_en50221_io_read_condition (ca, &result, &slot) == 1) {
+ up_read (&ca->slot_info[slot].sem);
mask |= POLLIN;
}
@@ -1489,21 +1601,21 @@ static unsigned int dvb_ca_en50221_io_poll(struct file *file, poll_table *wait)
static struct file_operations dvb_ca_fops = {
- .owner = THIS_MODULE,
- .read = dvb_ca_en50221_io_read,
- .write = dvb_ca_en50221_io_write,
- .ioctl = dvb_ca_en50221_io_ioctl,
- .open = dvb_ca_en50221_io_open,
- .release= dvb_ca_en50221_io_release,
- .poll = dvb_ca_en50221_io_poll,
+ .owner = THIS_MODULE,
+ .read = dvb_ca_en50221_io_read,
+ .write = dvb_ca_en50221_io_write,
+ .ioctl = dvb_ca_en50221_io_ioctl,
+ .open = dvb_ca_en50221_io_open,
+ .release = dvb_ca_en50221_io_release,
+ .poll = dvb_ca_en50221_io_poll,
};
static struct dvb_device dvbdev_ca = {
- .priv = NULL,
- .users = 1,
- .readers= 1,
- .writers= 1,
- .fops = &dvb_ca_fops,
+ .priv = NULL,
+ .users = 1,
+ .readers = 1,
+ .writers = 1,
+ .fops = &dvb_ca_fops,
};
@@ -1521,33 +1633,36 @@ static struct dvb_device dvbdev_ca = {
*
* @return 0 on success, nonzero on failure
*/
-int dvb_ca_en50221_init(struct dvb_adapter *dvb_adapter, struct dvb_ca_en50221* pubca, int flags, int slot_count)
+int dvb_ca_en50221_init (struct dvb_adapter *dvb_adapter,
+ struct dvb_ca_en50221 *pubca, int flags,
+ int slot_count)
{
int ret;
- struct dvb_ca_private* ca = NULL;
+ struct dvb_ca_private *ca = NULL;
int i;
dprintk ("%s\n", __FUNCTION__);
- if (slot_count < 1) return -EINVAL;
+ if (slot_count < 1)
+ return -EINVAL;
/* initialise the system data */
- if ((ca = (struct dvb_ca_private*) kmalloc(sizeof(struct dvb_ca_private), GFP_KERNEL)) == NULL) {
+ if ((ca = (struct dvb_ca_private *) kmalloc (sizeof (struct dvb_ca_private), GFP_KERNEL)) == NULL) {
ret = -ENOMEM;
goto error;
}
- memset(ca, 0, sizeof(struct dvb_ca_private));
+ memset (ca, 0, sizeof (struct dvb_ca_private));
ca->pub = pubca;
ca->flags = flags;
ca->slot_count = slot_count;
- if ((ca->slot_info = kmalloc(sizeof(struct dvb_ca_slot) * slot_count, GFP_KERNEL)) == NULL) {
+ if ((ca->slot_info = kmalloc (sizeof (struct dvb_ca_slot) * slot_count, GFP_KERNEL)) == NULL) {
ret = -ENOMEM;
goto error;
}
- memset(ca->slot_info, 0, sizeof(struct dvb_ca_slot) * slot_count);
- init_waitqueue_head(&ca->wait_queue);
+ memset (ca->slot_info, 0, sizeof (struct dvb_ca_slot) * slot_count);
+ init_waitqueue_head (&ca->wait_queue);
ca->thread_pid = 0;
- init_waitqueue_head(&ca->thread_queue);
+ init_waitqueue_head (&ca->thread_queue);
ca->exit = 0;
ca->open = 0;
ca->wakeup = 0;
@@ -1555,30 +1670,33 @@ int dvb_ca_en50221_init(struct dvb_adapter *dvb_adapter, struct dvb_ca_en50221*
pubca->private = ca;
/* register the DVB device */
- ret = dvb_register_device(dvb_adapter, &ca->dvbdev, &dvbdev_ca, ca, DVB_DEVICE_CA);
- if (ret) goto error;
+ ret = dvb_register_device (dvb_adapter, &ca->dvbdev, &dvbdev_ca, ca,
+ DVB_DEVICE_CA);
+ if (ret)
+ goto error;
/* now initialise each slot */
- for(i=0; i< slot_count; i++) {
- memset(&ca->slot_info[i], 0, sizeof(struct dvb_ca_slot));
+ for (i = 0; i < slot_count; i++) {
+ memset (&ca->slot_info[i], 0, sizeof (struct dvb_ca_slot));
ca->slot_info[i].slot_state = DVB_CA_SLOTSTATE_NONE;
- atomic_set(&ca->slot_info[i].camchange_count, 0);
+ atomic_set (&ca->slot_info[i].camchange_count, 0);
ca->slot_info[i].camchange_type = DVB_CA_EN50221_CAMCHANGE_REMOVED;
- init_rwsem(&ca->slot_info[i].sem);
+ init_rwsem (&ca->slot_info[i].sem);
}
- if (signal_pending(current)) {
+ if (signal_pending (current)) {
ret = -EINTR;
goto error;
}
- mb();
+ mb ();
/* create a kthread for monitoring this CA device */
ret = kernel_thread (dvb_ca_en50221_thread, ca, 0);
if (ret < 0) {
- printk("dvb_ca_init: failed to start kernel_thread (%d)\n", ret);
+ printk ("dvb_ca_init: failed to start kernel_thread (%d)\n",
+ ret);
goto error;
}
ca->thread_pid = ret;
@@ -1586,9 +1704,11 @@ int dvb_ca_en50221_init(struct dvb_adapter *dvb_adapter, struct dvb_ca_en50221*
error:
if (ca != NULL) {
- if (ca->dvbdev != NULL) dvb_unregister_device(ca->dvbdev);
- if (ca->slot_info != NULL) kfree(ca->slot_info);
- kfree(ca);
+ if (ca->dvbdev != NULL)
+ dvb_unregister_device (ca->dvbdev);
+ if (ca->slot_info != NULL)
+ kfree (ca->slot_info);
+ kfree (ca);
}
pubca->private = NULL;
return ret;
@@ -1602,31 +1722,31 @@ error:
* @param ca_dev The dvb_device_t instance for the CA device.
* @param ca The associated dvb_ca instance.
*/
-void dvb_ca_en50221_release(struct dvb_ca_en50221* pubca)
+void dvb_ca_en50221_release (struct dvb_ca_en50221 *pubca)
{
- struct dvb_ca_private* ca = (struct dvb_ca_private*) pubca->private;
+ struct dvb_ca_private *ca = (struct dvb_ca_private *) pubca->private;
int i;
dprintk ("%s\n", __FUNCTION__);
/* shutdown the thread if there was one */
if (ca->thread_pid) {
- if (kill_proc(ca->thread_pid, 0, 1) == -ESRCH) {
- printk("dvb_ca_release adapter %d: thread PID %d already died\n", ca->dvbdev->adapter->num, ca->thread_pid);
+ if (kill_proc (ca->thread_pid, 0, 1) == -ESRCH) {
+ printk ("dvb_ca_release adapter %d: thread PID %d already died\n", ca->dvbdev->adapter->num, ca->thread_pid);
} else {
ca->exit = 1;
- mb();
- dvb_ca_en50221_thread_wakeup(ca);
- wait_event_interruptible(ca->thread_queue, ca->thread_pid == 0);
+ mb ();
+ dvb_ca_en50221_thread_wakeup (ca);
+ wait_event_interruptible (ca->thread_queue,
+ ca->thread_pid == 0);
}
}
- for(i=0; i< ca->slot_count; i++) {
- dvb_ca_en50221_slot_shutdown(ca, i);
+ for (i = 0; i < ca->slot_count; i++) {
+ dvb_ca_en50221_slot_shutdown (ca, i);
}
- kfree(ca->slot_info);
- dvb_unregister_device(ca->dvbdev);
- kfree(ca);
+ kfree (ca->slot_info);
+ dvb_unregister_device (ca->dvbdev);
+ kfree (ca);
pubca->private = NULL;
}
-
generated by cgit v1.2.3 (git 2.25.1) at 2025-10-07 23:58:42 +0000