summaryrefslogtreecommitdiff
path: root/drivers/staging/media/cxd2099/cxd2099.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/staging/media/cxd2099/cxd2099.c')
-rw-r--r--drivers/staging/media/cxd2099/cxd2099.c30
1 files changed, 11 insertions, 19 deletions
diff --git a/drivers/staging/media/cxd2099/cxd2099.c b/drivers/staging/media/cxd2099/cxd2099.c
index 3e30f4864e2b..dc9cbd8f2104 100644
--- a/drivers/staging/media/cxd2099/cxd2099.c
+++ b/drivers/staging/media/cxd2099/cxd2099.c
@@ -3,23 +3,14 @@
*
* Copyright (C) 2010-2013 Digital Devices GmbH
*
- *
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* version 2 only, as published by the Free Software Foundation.
*
- *
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
- *
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
- * 02110-1301, USA
- * Or, point your browser to http://www.gnu.org/copyleft/gpl.html
*/
#include <linux/slab.h>
@@ -35,7 +26,7 @@
static int buffermode;
module_param(buffermode, int, 0444);
-MODULE_PARM_DESC(buffermode, "Enable use of the CXD2099AR buffer mode (default: disabled)");
+MODULE_PARM_DESC(buffermode, "Enable CXD2099AR buffer mode (default: disabled)");
static int read_data(struct dvb_ca_en50221 *ca, int slot, u8 *ebuf, int ecount);
@@ -59,7 +50,7 @@ struct cxd {
int amem_read;
int cammode;
- struct mutex lock;
+ struct mutex lock; /* device access lock */
u8 rbuf[1028];
u8 wbuf[1028];
@@ -101,7 +92,7 @@ static int i2c_read_reg(struct i2c_adapter *adapter, u8 adr,
.buf = val, .len = 1} };
if (i2c_transfer(adapter, msgs, 2) != 2) {
- dev_err(&adapter->dev, "error in i2c_read_reg\n");
+ dev_err(&adapter->dev, "error in %s()\n", __func__);
return -1;
}
return 0;
@@ -116,7 +107,7 @@ static int i2c_read(struct i2c_adapter *adapter, u8 adr,
.buf = data, .len = n} };
if (i2c_transfer(adapter, msgs, 2) != 2) {
- dev_err(&adapter->dev, "error in i2c_read\n");
+ dev_err(&adapter->dev, "error in %s()\n", __func__);
return -1;
}
return 0;
@@ -134,7 +125,7 @@ static int read_block(struct cxd *ci, u8 adr, u8 *data, u16 n)
while (n) {
int len = n;
- if (ci->cfg.max_i2c && (len > ci->cfg.max_i2c))
+ if (ci->cfg.max_i2c && len > ci->cfg.max_i2c)
len = ci->cfg.max_i2c;
status = i2c_read(ci->i2c, ci->cfg.adr, 1, data, len);
if (status)
@@ -527,7 +518,7 @@ static int slot_shutdown(struct dvb_ca_en50221 *ca, int slot)
{
struct cxd *ci = ca->data;
- dev_info(&ci->i2c->dev, "%s\n", __func__);
+ dev_dbg(&ci->i2c->dev, "%s\n", __func__);
if (ci->cammode)
read_data(ca, slot, ci->rbuf, 0);
mutex_lock(&ci->lock);
@@ -591,7 +582,7 @@ static int campoll(struct cxd *ci)
}
}
if ((istat & 8) &&
- (ci->slot_stat == DVB_CA_EN50221_POLL_CAM_PRESENT)) {
+ ci->slot_stat == DVB_CA_EN50221_POLL_CAM_PRESENT) {
ci->ready = 1;
ci->slot_stat |= DVB_CA_EN50221_POLL_CAM_READY;
}
@@ -677,7 +668,8 @@ struct dvb_ca_en50221 *cxd2099_attach(struct cxd2099_cfg *cfg,
u8 val;
if (i2c_read_reg(i2c, cfg->adr, 0, &val) < 0) {
- dev_info(&i2c->dev, "No CXD2099 detected at %02x\n", cfg->adr);
+ dev_info(&i2c->dev, "No CXD2099AR detected at 0x%02x\n",
+ cfg->adr);
return NULL;
}
@@ -695,7 +687,7 @@ struct dvb_ca_en50221 *cxd2099_attach(struct cxd2099_cfg *cfg,
ci->en = en_templ;
ci->en.data = ci;
init(ci);
- dev_info(&i2c->dev, "Attached CXD2099AR at %02x\n", ci->cfg.adr);
+ dev_info(&i2c->dev, "Attached CXD2099AR at 0x%02x\n", ci->cfg.adr);
if (!buffermode) {
ci->en.read_data = NULL;
@@ -708,6 +700,6 @@ struct dvb_ca_en50221 *cxd2099_attach(struct cxd2099_cfg *cfg,
}
EXPORT_SYMBOL(cxd2099_attach);
-MODULE_DESCRIPTION("cxd2099");
+MODULE_DESCRIPTION("CXD2099AR Common Interface controller driver");
MODULE_AUTHOR("Ralph Metzler");
MODULE_LICENSE("GPL");