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authorMauro Carvalho Chehab <mchehab@osg.samsung.com>2015-11-11 21:07:44 +0100
committerMauro Carvalho Chehab <mchehab@osg.samsung.com>2015-11-17 09:43:59 +0100
commite417668d402e07a0de40b996005324800e694633 (patch)
tree486bd2393f77c637e6f6c885d66b090aeff0603c /drivers/media/dvb-frontends/tda8261.c
parent[media] tda666x: add support for set_parms() and get_frequency() (diff)
downloadlinux-e417668d402e07a0de40b996005324800e694633.tar.xz
linux-e417668d402e07a0de40b996005324800e694633.zip
[media] tda8261: don't use set_state/get_state callbacks
Those callbacks are meant to be used only on some very specific cases. There's absolutely no need to do that at tda8261, as the only parameter that it allows to be set/get is the frequency. So, use the standard get_params() and get_frequency() kABI ops. There's no need to touch at any bridge driver, as all interactions are done via the macros at tda8261_cfg.h. Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Diffstat (limited to 'drivers/media/dvb-frontends/tda8261.c')
-rw-r--r--drivers/media/dvb-frontends/tda8261.c125
1 files changed, 52 insertions, 73 deletions
diff --git a/drivers/media/dvb-frontends/tda8261.c b/drivers/media/dvb-frontends/tda8261.c
index 19c488814e5c..3285b1bc4642 100644
--- a/drivers/media/dvb-frontends/tda8261.c
+++ b/drivers/media/dvb-frontends/tda8261.c
@@ -83,88 +83,71 @@ static int tda8261_get_status(struct dvb_frontend *fe, u32 *status)
static const u32 div_tab[] = { 2000, 1000, 500, 250, 125 }; /* kHz */
static const u8 ref_div[] = { 0x00, 0x01, 0x02, 0x05, 0x07 };
-static int tda8261_get_state(struct dvb_frontend *fe,
- enum tuner_param param,
- struct tuner_state *tstate)
+static int tda8261_get_frequency(struct dvb_frontend *fe, u32 *frequency)
{
struct tda8261_state *state = fe->tuner_priv;
- int err = 0;
- switch (param) {
- case DVBFE_TUNER_FREQUENCY:
- tstate->frequency = state->frequency;
- break;
- case DVBFE_TUNER_BANDWIDTH:
- tstate->bandwidth = 40000000; /* FIXME! need to calculate Bandwidth */
- break;
- default:
- pr_err("%s: Unknown parameter (param=%d)\n", __func__, param);
- err = -EINVAL;
- break;
- }
+ *frequency = state->frequency;
- return err;
+ return 0;
}
-static int tda8261_set_state(struct dvb_frontend *fe,
- enum tuner_param param,
- struct tuner_state *tstate)
+static int tda8261_set_params(struct dvb_frontend *fe)
{
+ struct dtv_frontend_properties *c = &fe->dtv_property_cache;
struct tda8261_state *state = fe->tuner_priv;
const struct tda8261_config *config = state->config;
u32 frequency, N, status = 0;
u8 buf[4];
int err = 0;
- if (param & DVBFE_TUNER_FREQUENCY) {
- /**
- * N = Max VCO Frequency / Channel Spacing
- * Max VCO Frequency = VCO frequency + (channel spacing - 1)
- * (to account for half channel spacing on either side)
- */
- frequency = tstate->frequency;
- if ((frequency < 950000) || (frequency > 2150000)) {
- pr_warn("%s: Frequency beyond limits, frequency=%d\n", __func__, frequency);
- return -EINVAL;
- }
- N = (frequency + (div_tab[config->step_size] - 1)) / div_tab[config->step_size];
- pr_debug("%s: Step size=%d, Divider=%d, PG=0x%02x (%d)\n",
- __func__, config->step_size, div_tab[config->step_size], N, N);
-
- buf[0] = (N >> 8) & 0xff;
- buf[1] = N & 0xff;
- buf[2] = (0x01 << 7) | ((ref_div[config->step_size] & 0x07) << 1);
-
- if (frequency < 1450000)
- buf[3] = 0x00;
- else if (frequency < 2000000)
- buf[3] = 0x40;
- else if (frequency < 2150000)
- buf[3] = 0x80;
-
- /* Set params */
- if ((err = tda8261_write(state, buf)) < 0) {
- pr_err("%s: I/O Error\n", __func__);
- return err;
- }
- /* sleep for some time */
- pr_debug("%s: Waiting to Phase LOCK\n", __func__);
- msleep(20);
- /* check status */
- if ((err = tda8261_get_status(fe, &status)) < 0) {
- pr_err("%s: I/O Error\n", __func__);
- return err;
- }
- if (status == 1) {
- pr_debug("%s: Tuner Phase locked: status=%d\n", __func__, status);
- state->frequency = frequency; /* cache successful state */
- } else {
- pr_debug("%s: No Phase lock: status=%d\n", __func__, status);
- }
- } else {
- pr_err("%s: Unknown parameter (param=%d)\n", __func__, param);
+ /*
+ * N = Max VCO Frequency / Channel Spacing
+ * Max VCO Frequency = VCO frequency + (channel spacing - 1)
+ * (to account for half channel spacing on either side)
+ */
+ frequency = c->frequency;
+ if ((frequency < 950000) || (frequency > 2150000)) {
+ pr_warn("%s: Frequency beyond limits, frequency=%d\n",
+ __func__, frequency);
return -EINVAL;
}
+ N = (frequency + (div_tab[config->step_size] - 1)) / div_tab[config->step_size];
+ pr_debug("%s: Step size=%d, Divider=%d, PG=0x%02x (%d)\n",
+ __func__, config->step_size, div_tab[config->step_size], N, N);
+
+ buf[0] = (N >> 8) & 0xff;
+ buf[1] = N & 0xff;
+ buf[2] = (0x01 << 7) | ((ref_div[config->step_size] & 0x07) << 1);
+
+ if (frequency < 1450000)
+ buf[3] = 0x00;
+ else if (frequency < 2000000)
+ buf[3] = 0x40;
+ else if (frequency < 2150000)
+ buf[3] = 0x80;
+
+ /* Set params */
+ err = tda8261_write(state, buf);
+ if (err < 0) {
+ pr_err("%s: I/O Error\n", __func__);
+ return err;
+ }
+ /* sleep for some time */
+ pr_debug("%s: Waiting to Phase LOCK\n", __func__);
+ msleep(20);
+ /* check status */
+ if ((err = tda8261_get_status(fe, &status)) < 0) {
+ pr_err("%s: I/O Error\n", __func__);
+ return err;
+ }
+ if (status == 1) {
+ pr_debug("%s: Tuner Phase locked: status=%d\n", __func__,
+ status);
+ state->frequency = frequency; /* cache successful state */
+ } else {
+ pr_debug("%s: No Phase lock: status=%d\n", __func__, status);
+ }
return 0;
}
@@ -182,14 +165,13 @@ static struct dvb_tuner_ops tda8261_ops = {
.info = {
.name = "TDA8261",
-// .tuner_name = NULL,
.frequency_min = 950000,
.frequency_max = 2150000,
.frequency_step = 0
},
- .set_state = tda8261_set_state,
- .get_state = tda8261_get_state,
+ .set_params = tda8261_set_params,
+ .get_frequency = tda8261_get_frequency,
.get_status = tda8261_get_status,
.release = tda8261_release
};
@@ -210,10 +192,7 @@ struct dvb_frontend *tda8261_attach(struct dvb_frontend *fe,
fe->ops.tuner_ops = tda8261_ops;
fe->ops.tuner_ops.info.frequency_step = div_tab[config->step_size];
-// fe->ops.tuner_ops.tuner_name = &config->buf;
-// printk("%s: Attaching %s TDA8261 8PSK/QPSK tuner\n",
-// __func__, fe->ops.tuner_ops.tuner_name);
pr_info("%s: Attaching TDA8261 8PSK/QPSK tuner\n", __func__);
return fe;