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path: root/drivers/media/tuners/xc5000.c
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Diffstat (limited to 'drivers/media/tuners/xc5000.c')
-rw-r--r--drivers/media/tuners/xc5000.c242
1 files changed, 162 insertions, 80 deletions
diff --git a/drivers/media/tuners/xc5000.c b/drivers/media/tuners/xc5000.c
index e135760..e44c8ab 100644
--- a/drivers/media/tuners/xc5000.c
+++ b/drivers/media/tuners/xc5000.c
@@ -59,6 +59,7 @@ struct xc5000_priv {
u32 freq_hz, freq_offset;
u32 bandwidth;
u8 video_standard;
+ unsigned int mode;
u8 rf_mode;
u8 radio_input;
@@ -69,6 +70,8 @@ struct xc5000_priv {
struct dvb_frontend *fe;
struct delayed_work timer_sleep;
+
+ const struct firmware *firmware;
};
/* Misc Defines */
@@ -712,9 +715,50 @@ static void xc_debug_dump(struct xc5000_priv *priv)
}
}
-static int xc5000_set_params(struct dvb_frontend *fe)
+static int xc5000_tune_digital(struct dvb_frontend *fe)
+{
+ struct xc5000_priv *priv = fe->tuner_priv;
+ int ret;
+ u32 bw = fe->dtv_property_cache.bandwidth_hz;
+
+ ret = xc_set_signal_source(priv, priv->rf_mode);
+ if (ret != 0) {
+ printk(KERN_ERR
+ "xc5000: xc_set_signal_source(%d) failed\n",
+ priv->rf_mode);
+ return -EREMOTEIO;
+ }
+
+ ret = xc_set_tv_standard(priv,
+ xc5000_standard[priv->video_standard].video_mode,
+ xc5000_standard[priv->video_standard].audio_mode, 0);
+ if (ret != 0) {
+ printk(KERN_ERR "xc5000: xc_set_tv_standard failed\n");
+ return -EREMOTEIO;
+ }
+
+ ret = xc_set_IF_frequency(priv, priv->if_khz);
+ if (ret != 0) {
+ printk(KERN_ERR "xc5000: xc_Set_IF_frequency(%d) failed\n",
+ priv->if_khz);
+ return -EIO;
+ }
+
+ xc_write_reg(priv, XREG_OUTPUT_AMP, 0x8a);
+
+ xc_tune_channel(priv, priv->freq_hz, XC_TUNE_DIGITAL);
+
+ if (debug)
+ xc_debug_dump(priv);
+
+ priv->bandwidth = bw;
+
+ return 0;
+}
+
+static int xc5000_set_digital_params(struct dvb_frontend *fe)
{
- int ret, b;
+ int b;
struct xc5000_priv *priv = fe->tuner_priv;
u32 bw = fe->dtv_property_cache.bandwidth_hz;
u32 freq = fe->dtv_property_cache.frequency;
@@ -794,43 +838,12 @@ static int xc5000_set_params(struct dvb_frontend *fe)
}
priv->freq_hz = freq - priv->freq_offset;
+ priv->mode = V4L2_TUNER_DIGITAL_TV;
dprintk(1, "%s() frequency=%d (compensated to %d)\n",
__func__, freq, priv->freq_hz);
- ret = xc_set_signal_source(priv, priv->rf_mode);
- if (ret != 0) {
- printk(KERN_ERR
- "xc5000: xc_set_signal_source(%d) failed\n",
- priv->rf_mode);
- return -EREMOTEIO;
- }
-
- ret = xc_set_tv_standard(priv,
- xc5000_standard[priv->video_standard].video_mode,
- xc5000_standard[priv->video_standard].audio_mode, 0);
- if (ret != 0) {
- printk(KERN_ERR "xc5000: xc_set_tv_standard failed\n");
- return -EREMOTEIO;
- }
-
- ret = xc_set_IF_frequency(priv, priv->if_khz);
- if (ret != 0) {
- printk(KERN_ERR "xc5000: xc_Set_IF_frequency(%d) failed\n",
- priv->if_khz);
- return -EIO;
- }
-
- xc_write_reg(priv, XREG_OUTPUT_AMP, 0x8a);
-
- xc_tune_channel(priv, priv->freq_hz, XC_TUNE_DIGITAL);
-
- if (debug)
- xc_debug_dump(priv);
-
- priv->bandwidth = bw;
-
- return 0;
+ return xc5000_tune_digital(fe);
}
static int xc5000_is_firmware_loaded(struct dvb_frontend *fe)
@@ -852,12 +865,10 @@ static int xc5000_is_firmware_loaded(struct dvb_frontend *fe)
return ret;
}
-static int xc5000_set_tv_freq(struct dvb_frontend *fe,
- struct analog_parameters *params)
+static void xc5000_config_tv(struct dvb_frontend *fe,
+ struct analog_parameters *params)
{
struct xc5000_priv *priv = fe->tuner_priv;
- u16 pll_lock_status;
- int ret;
dprintk(1, "%s() frequency=%d (in units of 62.5khz)\n",
__func__, params->frequency);
@@ -876,42 +887,49 @@ static int xc5000_set_tv_freq(struct dvb_frontend *fe,
if (params->std & V4L2_STD_MN) {
/* default to BTSC audio standard */
priv->video_standard = MN_NTSC_PAL_BTSC;
- goto tune_channel;
+ return;
}
if (params->std & V4L2_STD_PAL_BG) {
/* default to NICAM audio standard */
priv->video_standard = BG_PAL_NICAM;
- goto tune_channel;
+ return;
}
if (params->std & V4L2_STD_PAL_I) {
/* default to NICAM audio standard */
priv->video_standard = I_PAL_NICAM;
- goto tune_channel;
+ return;
}
if (params->std & V4L2_STD_PAL_DK) {
/* default to NICAM audio standard */
priv->video_standard = DK_PAL_NICAM;
- goto tune_channel;
+ return;
}
if (params->std & V4L2_STD_SECAM_DK) {
/* default to A2 DK1 audio standard */
priv->video_standard = DK_SECAM_A2DK1;
- goto tune_channel;
+ return;
}
if (params->std & V4L2_STD_SECAM_L) {
priv->video_standard = L_SECAM_NICAM;
- goto tune_channel;
+ return;
}
if (params->std & V4L2_STD_SECAM_LC) {
priv->video_standard = LC_SECAM_NICAM;
- goto tune_channel;
+ return;
}
+}
+
+static int xc5000_set_tv_freq(struct dvb_frontend *fe)
+{
+ struct xc5000_priv *priv = fe->tuner_priv;
+ u16 pll_lock_status;
+ int ret;
tune_channel:
ret = xc_set_signal_source(priv, priv->rf_mode);
@@ -955,12 +973,11 @@ tune_channel:
return 0;
}
-static int xc5000_set_radio_freq(struct dvb_frontend *fe,
- struct analog_parameters *params)
+static int xc5000_config_radio(struct dvb_frontend *fe,
+ struct analog_parameters *params)
+
{
struct xc5000_priv *priv = fe->tuner_priv;
- int ret = -EINVAL;
- u8 radio_input;
dprintk(1, "%s() frequency=%d (in units of khz)\n",
__func__, params->frequency);
@@ -970,6 +987,18 @@ static int xc5000_set_radio_freq(struct dvb_frontend *fe,
return -EINVAL;
}
+ priv->freq_hz = params->frequency * 125 / 2;
+ priv->rf_mode = XC_RF_MODE_AIR;
+
+ return 0;
+}
+
+static int xc5000_set_radio_freq(struct dvb_frontend *fe)
+{
+ struct xc5000_priv *priv = fe->tuner_priv;
+ int ret;
+ u8 radio_input;
+
if (priv->radio_input == XC5000_RADIO_FM1)
radio_input = FM_RADIO_INPUT1;
else if (priv->radio_input == XC5000_RADIO_FM2)
@@ -982,10 +1011,6 @@ static int xc5000_set_radio_freq(struct dvb_frontend *fe,
return -EINVAL;
}
- priv->freq_hz = params->frequency * 125 / 2;
-
- priv->rf_mode = XC_RF_MODE_AIR;
-
ret = xc_set_tv_standard(priv, xc5000_standard[radio_input].video_mode,
xc5000_standard[radio_input].audio_mode, radio_input);
@@ -1013,34 +1038,53 @@ static int xc5000_set_radio_freq(struct dvb_frontend *fe,
return 0;
}
-static int xc5000_set_analog_params(struct dvb_frontend *fe,
- struct analog_parameters *params)
+static int xc5000_set_params(struct dvb_frontend *fe)
{
struct xc5000_priv *priv = fe->tuner_priv;
- int ret = -EINVAL;
-
- if (priv->i2c_props.adap == NULL)
- return -EINVAL;
if (xc_load_fw_and_init_tuner(fe, 0) != 0) {
dprintk(1, "Unable to load firmware and init tuner\n");
return -EINVAL;
}
+ switch (priv->mode) {
+ case V4L2_TUNER_RADIO:
+ return xc5000_set_radio_freq(fe);
+ case V4L2_TUNER_ANALOG_TV:
+ return xc5000_set_tv_freq(fe);
+ case V4L2_TUNER_DIGITAL_TV:
+ return xc5000_tune_digital(fe);
+ }
+
+ return 0;
+}
+
+static int xc5000_set_analog_params(struct dvb_frontend *fe,
+ struct analog_parameters *params)
+{
+ struct xc5000_priv *priv = fe->tuner_priv;
+ int ret;
+
+ if (priv->i2c_props.adap == NULL)
+ return -EINVAL;
+
switch (params->mode) {
case V4L2_TUNER_RADIO:
- ret = xc5000_set_radio_freq(fe, params);
+ ret = xc5000_config_radio(fe, params);
+ if (ret)
+ return ret;
break;
case V4L2_TUNER_ANALOG_TV:
- case V4L2_TUNER_DIGITAL_TV:
- ret = xc5000_set_tv_freq(fe, params);
+ xc5000_config_tv(fe, params);
+ break;
+ default:
break;
}
+ priv->mode = params->mode;
- return ret;
+ return xc5000_set_params(fe);
}
-
static int xc5000_get_frequency(struct dvb_frontend *fe, u32 *freq)
{
struct xc5000_priv *priv = fe->tuner_priv;
@@ -1094,20 +1138,23 @@ static int xc_load_fw_and_init_tuner(struct dvb_frontend *fe, int force)
if (!force && xc5000_is_firmware_loaded(fe) == 0)
return 0;
- ret = request_firmware(&fw, desired_fw->name,
- priv->i2c_props.adap->dev.parent);
- if (ret) {
- printk(KERN_ERR "xc5000: Upload failed. (file not found?)\n");
- return ret;
- }
-
- dprintk(1, "firmware read %Zu bytes.\n", fw->size);
+ if (!priv->firmware) {
+ ret = request_firmware(&fw, desired_fw->name,
+ priv->i2c_props.adap->dev.parent);
+ if (ret) {
+ pr_err("xc5000: Upload failed. rc %d\n", ret);
+ return ret;
+ }
+ dprintk(1, "firmware read %Zu bytes.\n", fw->size);
- if (fw->size != desired_fw->size) {
- printk(KERN_ERR "xc5000: Firmware file with incorrect size\n");
- ret = -EINVAL;
- goto err;
- }
+ if (fw->size != desired_fw->size) {
+ pr_err("xc5000: Firmware file with incorrect size\n");
+ release_firmware(fw);
+ return -EINVAL;
+ }
+ priv->firmware = fw;
+ } else
+ fw = priv->firmware;
/* Try up to 5 times to load firmware */
for (i = 0; i < 5; i++) {
@@ -1190,7 +1237,6 @@ err:
else
printk(KERN_CONT " - too many retries. Giving up\n");
- release_firmware(fw);
return ret;
}
@@ -1229,6 +1275,38 @@ static int xc5000_sleep(struct dvb_frontend *fe)
return 0;
}
+static int xc5000_suspend(struct dvb_frontend *fe)
+{
+ struct xc5000_priv *priv = fe->tuner_priv;
+ int ret;
+
+ dprintk(1, "%s()\n", __func__);
+
+ cancel_delayed_work(&priv->timer_sleep);
+
+ ret = xc5000_tuner_reset(fe);
+ if (ret != 0)
+ printk(KERN_ERR
+ "xc5000: %s() unable to shutdown tuner\n",
+ __func__);
+
+ return 0;
+}
+
+static int xc5000_resume(struct dvb_frontend *fe)
+{
+ struct xc5000_priv *priv = fe->tuner_priv;
+
+ dprintk(1, "%s()\n", __func__);
+
+ /* suspended before firmware is loaded.
+ Avoid firmware load in resume path. */
+ if (!priv->firmware)
+ return 0;
+
+ return xc5000_set_params(fe);
+}
+
static int xc5000_init(struct dvb_frontend *fe)
{
struct xc5000_priv *priv = fe->tuner_priv;
@@ -1256,6 +1334,8 @@ static int xc5000_release(struct dvb_frontend *fe)
if (priv) {
cancel_delayed_work(&priv->timer_sleep);
hybrid_tuner_release_state(priv);
+ if (priv->firmware)
+ release_firmware(priv->firmware);
}
mutex_unlock(&xc5000_list_mutex);
@@ -1293,9 +1373,11 @@ static const struct dvb_tuner_ops xc5000_tuner_ops = {
.release = xc5000_release,
.init = xc5000_init,
.sleep = xc5000_sleep,
+ .suspend = xc5000_suspend,
+ .resume = xc5000_resume,
.set_config = xc5000_set_config,
- .set_params = xc5000_set_params,
+ .set_params = xc5000_set_digital_params,
.set_analog_params = xc5000_set_analog_params,
.get_frequency = xc5000_get_frequency,
.get_if_frequency = xc5000_get_if_frequency,

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