diff options
Diffstat (limited to 'drivers/media/tuners/tuner-simple.c')
| -rw-r--r-- | drivers/media/tuners/tuner-simple.c | 25 |
1 files changed, 13 insertions, 12 deletions
diff --git a/drivers/media/tuners/tuner-simple.c b/drivers/media/tuners/tuner-simple.c index b6e70fada3fb..b52cd8bd07dd 100644 --- a/drivers/media/tuners/tuner-simple.c +++ b/drivers/media/tuners/tuner-simple.c @@ -112,7 +112,7 @@ struct tuner_simple_priv { struct list_head hybrid_tuner_instance_list; unsigned int type; - struct tunertype *tun; + const struct tunertype *tun; u32 frequency; u32 bandwidth; @@ -232,11 +232,11 @@ static inline char *tuner_param_name(enum param_type type) return name; } -static struct tuner_params *simple_tuner_params(struct dvb_frontend *fe, - enum param_type desired_type) +static const struct tuner_params *simple_tuner_params(struct dvb_frontend *fe, + enum param_type desired_type) { struct tuner_simple_priv *priv = fe->tuner_priv; - struct tunertype *tun = priv->tun; + const struct tunertype *tun = priv->tun; int i; for (i = 0; i < tun->count; i++) @@ -257,7 +257,7 @@ static struct tuner_params *simple_tuner_params(struct dvb_frontend *fe, } static int simple_config_lookup(struct dvb_frontend *fe, - struct tuner_params *t_params, + const struct tuner_params *t_params, unsigned *frequency, u8 *config, u8 *cb) { struct tuner_simple_priv *priv = fe->tuner_priv; @@ -500,7 +500,7 @@ static int simple_radio_bandswitch(struct dvb_frontend *fe, u8 *buffer) case TUNER_TENA_9533_DI: case TUNER_YMEC_TVF_5533MF: tuner_dbg("This tuner doesn't have FM. Most cards have a TEA5767 for FM\n"); - return 0; + return -EINVAL; case TUNER_PHILIPS_FM1216ME_MK3: case TUNER_PHILIPS_FM1236_MK3: case TUNER_PHILIPS_FMD1216ME_MK3: @@ -549,7 +549,7 @@ static int simple_set_tv_freq(struct dvb_frontend *fe, u8 buffer[4]; int rc, IFPCoff, i; enum param_type desired_type; - struct tuner_params *t_params; + const struct tuner_params *t_params; /* IFPCoff = Video Intermediate Frequency - Vif: 940 =16*58.75 NTSC/J (Japan) @@ -664,12 +664,12 @@ static int simple_set_tv_freq(struct dvb_frontend *fe, static int simple_set_radio_freq(struct dvb_frontend *fe, struct analog_parameters *params) { - struct tunertype *tun; + const struct tunertype *tun; struct tuner_simple_priv *priv = fe->tuner_priv; u8 buffer[4]; u16 div; int rc, j; - struct tuner_params *t_params; + const struct tuner_params *t_params; unsigned int freq = params->frequency; bool mono = params->audmode == V4L2_TUNER_MODE_MONO; @@ -702,7 +702,8 @@ static int simple_set_radio_freq(struct dvb_frontend *fe, TUNER_RATIO_SELECT_50; /* 50 kHz step */ /* Bandswitch byte */ - simple_radio_bandswitch(fe, &buffer[0]); + if (simple_radio_bandswitch(fe, &buffer[0])) + return 0; /* Convert from 1/16 kHz V4L steps to 1/20 MHz (=50 kHz) PLL steps freq * (1 Mhz / 16000 V4L steps) * (20 PLL steps / 1 MHz) = @@ -847,8 +848,8 @@ static u32 simple_dvb_configure(struct dvb_frontend *fe, u8 *buf, { /* This function returns the tuned frequency on success, 0 on error */ struct tuner_simple_priv *priv = fe->tuner_priv; - struct tunertype *tun = priv->tun; - struct tuner_params *t_params; + const struct tunertype *tun = priv->tun; + const struct tuner_params *t_params; u8 config, cb; u32 div; int ret; |