diff options
Diffstat (limited to 'drivers/staging/media/cxd2099/cxd2099.c')
| -rw-r--r-- | drivers/staging/media/cxd2099/cxd2099.c | 21 |
1 files changed, 11 insertions, 10 deletions
diff --git a/drivers/staging/media/cxd2099/cxd2099.c b/drivers/staging/media/cxd2099/cxd2099.c index f28916ea69f1..3e30f4864e2b 100644 --- a/drivers/staging/media/cxd2099/cxd2099.c +++ b/drivers/staging/media/cxd2099/cxd2099.c @@ -33,8 +33,9 @@ #include "cxd2099.h" -/* comment this line to deactivate the cxd2099ar buffer mode */ -#define BUFFER_MODE 1 +static int buffermode; +module_param(buffermode, int, 0444); +MODULE_PARM_DESC(buffermode, "Enable use of the CXD2099AR buffer mode (default: disabled)"); static int read_data(struct dvb_ca_en50221 *ca, int slot, u8 *ebuf, int ecount); @@ -221,7 +222,6 @@ static int write_reg(struct cxd *ci, u8 reg, u8 val) return write_regm(ci, reg, val, 0xff); } -#ifdef BUFFER_MODE static int write_block(struct cxd *ci, u8 adr, u8 *data, u16 n) { int status = 0; @@ -248,7 +248,6 @@ static int write_block(struct cxd *ci, u8 adr, u8 *data, u16 n) } return status; } -#endif static void set_mode(struct cxd *ci, int mode) { @@ -642,8 +641,6 @@ static int read_data(struct dvb_ca_en50221 *ca, int slot, u8 *ebuf, int ecount) return len; } -#ifdef BUFFER_MODE - static int write_data(struct dvb_ca_en50221 *ca, int slot, u8 *ebuf, int ecount) { struct cxd *ci = ca->data; @@ -658,7 +655,6 @@ static int write_data(struct dvb_ca_en50221 *ca, int slot, u8 *ebuf, int ecount) mutex_unlock(&ci->lock); return ecount; } -#endif static struct dvb_ca_en50221 en_templ = { .read_attribute_mem = read_attribute_mem, @@ -669,11 +665,8 @@ static struct dvb_ca_en50221 en_templ = { .slot_shutdown = slot_shutdown, .slot_ts_enable = slot_ts_enable, .poll_slot_status = poll_slot_status, -#ifdef BUFFER_MODE .read_data = read_data, .write_data = write_data, -#endif - }; struct dvb_ca_en50221 *cxd2099_attach(struct cxd2099_cfg *cfg, @@ -703,6 +696,14 @@ struct dvb_ca_en50221 *cxd2099_attach(struct cxd2099_cfg *cfg, ci->en.data = ci; init(ci); dev_info(&i2c->dev, "Attached CXD2099AR at %02x\n", ci->cfg.adr); + + if (!buffermode) { + ci->en.read_data = NULL; + ci->en.write_data = NULL; + } else { + dev_info(&i2c->dev, "Using CXD2099AR buffer mode"); + } + return &ci->en; } EXPORT_SYMBOL(cxd2099_attach); |