Re: [PATCH 10/11] add DVB-T support for tlg2300
Huang Shijie wrote:
> This module contains the code for DVB-T.
>
> Signed-off-by: Huang Shijie
> ---
> drivers/media/video/tlg2300/pd-dvb.c | 649
> ++
> 1 files changed, 649 insertions(+), 0 deletions(-)
> create mode 100644 drivers/media/video/tlg2300/pd-dvb.c
>
> diff --git a/drivers/media/video/tlg2300/pd-dvb.c
> b/drivers/media/video/tlg2300/pd-dvb.c
> new file mode 100644
> index 000..933fff0
> --- /dev/null
> +++ b/drivers/media/video/tlg2300/pd-dvb.c
> @@ -0,0 +1,649 @@
> +#include "pd-common.h"
> +#include
> +#include
> +#include
> +#include
> +
> +#include "vendorcmds.h"
> +#include
> +#include
> +
> +static void dvb_urb_cleanup(struct pd_dvb_adapter *pd_dvb);
> +
> +static int dvb_bandwidth[][2] = {
> + { TLG_BW_8, BANDWIDTH_8_MHZ },
> + { TLG_BW_7, BANDWIDTH_7_MHZ },
> + { TLG_BW_6, BANDWIDTH_6_MHZ }
> +};
> +static int dvb_bandwidth_length = ARRAY_SIZE(dvb_bandwidth);
> +
> +static s32 dvb_start_streaming(struct pd_dvb_adapter *pd_dvb);
> +static int poseidon_check_mode_dvbt(struct poseidon *pd)
> +{
> + s32 ret = 0, cmd_status = 0;
> +
> + set_current_state(TASK_INTERRUPTIBLE);
> + schedule_timeout(HZ/4);
> +
> + ret = usb_set_interface(pd->udev, 0, BULK_ALTERNATE_IFACE);
> + if (ret != 0)
> + return ret;
> +
> + ret = set_tuner_mode(pd, TLG_MODE_CAPS_DVB_T);
> + if (ret)
> + return ret;
> +
> + /* signal source */
> + ret = send_set_req(pd, SGNL_SRC_SEL, TLG_SIG_SRC_ANTENNA, &cmd_status);
> + if (ret|cmd_status)
> + return ret;
> +
> + return 0;
> +}
> +
> +/* acquire :
> + * 1 == open
> + * 0 == release
> + */
> +static int poseidon_ts_bus_ctrl(struct dvb_frontend *fe, int acquire)
> +{
> + struct poseidon *pd = fe->demodulator_priv;
> + struct pd_dvb_adapter *pd_dvb;
> + int ret = 0;
> +
> + if (!pd)
> + return -ENODEV;
> +
> + pd_dvb = container_of(fe, struct pd_dvb_adapter, dvb_fe);
> + if (acquire) {
> + mutex_lock(&pd->lock);
> + if (pd->state & POSEIDON_STATE_DISCONNECT) {
> + ret = -ENODEV;
> + goto open_out;
> + }
> +
> + if (pd->state && !(pd->state & POSEIDON_STATE_DVBT)) {
> + ret = -EBUSY;
> + goto open_out;
> + }
> +
> + usb_autopm_get_interface(pd->interface);
> + if (0 == pd->state) {
> + ret = poseidon_check_mode_dvbt(pd);
> + if (ret < 0)
> + goto open_out;
> + pd->state |= POSEIDON_STATE_DVBT;
> + pd_dvb->bandwidth = 0;
> + pd_dvb->prev_freq = 0;
> + }
> + atomic_inc(&pd_dvb->users);
> + kref_get(&pd->kref);
> +open_out:
> + mutex_unlock(&pd->lock);
> + } else {
> + dvb_stop_streaming(pd_dvb);
> +
> + if (atomic_dec_and_test(&pd_dvb->users)) {
> + mutex_lock(&pd->lock);
> + pd->state &= ~POSEIDON_STATE_DVBT;
> + mutex_unlock(&pd->lock);
> + }
> + kref_put(&pd->kref, poseidon_delete);
> + usb_autopm_put_interface(pd->interface);
> + }
> + return ret;
> +}
> +
> +static void poseidon_fe_release(struct dvb_frontend *fe)
> +{
> + struct poseidon *pd = fe->demodulator_priv;
> +
> +#ifdef CONFIG_PM
> + pd->pm_suspend = NULL;
> + pd->pm_resume = NULL;
> +#endif
> +}
> +
> +static s32 poseidon_fe_sleep(struct dvb_frontend *fe)
> +{
> + return 0;
> +}
> +
> +/*
> + * return true if we can satisfy the conditions, else return false.
> + */
> +static bool check_scan_ok(__u32 freq, int bandwidth,
> + struct pd_dvb_adapter *adapter)
> +{
> + if (bandwidth < 0)
> + return false;
> +
> + if (adapter->prev_freq == freq
> + && adapter->bandwidth == bandwidth) {
> + long nl = jiffies - adapter->last_jiffies;
> + unsigned int msec ;
> +
> + msec = jiffies_to_msecs(abs(nl));
> + return msec > 15000 ? true : false;
> + }
> + return true;
> +}
> +
> +/*
> + * Check if the firmware delays too long for an invalid frequency.
> + */
> +static int fw_delay_overflow(struct pd_dvb_adapter *adapter)
> +{
> + long nl = jiffies - adapter->last_jiffies;
> + unsigned int msec ;
> +
> + msec = jiffies_to_msecs(abs(nl));
> + return msec > 800 ? true : false;
> +}
> +
> +static int pm_dvb_suspend(struct poseidon *pd)
> +{
> + struct pd_dvb_adapter *pd_dvb = &pd->dvb_data;
> + dvb_stop_streaming(pd_dvb);
> + dvb_urb_cleanup(pd_dvb);
> + mdelay(2000);
Use msleep()
> + return 0;
> +}
> +
> +
> +static int poseidon_set_fe(struct dvb_frontend *fe,
> + struct dvb_frontend_parameters *fep)
> +{
>
[PATCH 10/11] add DVB-T support for tlg2300
This module contains the code for DVB-T.
Signed-off-by: Huang Shijie
---
drivers/media/video/tlg2300/pd-dvb.c | 649 ++
1 files changed, 649 insertions(+), 0 deletions(-)
create mode 100644 drivers/media/video/tlg2300/pd-dvb.c
diff --git a/drivers/media/video/tlg2300/pd-dvb.c
b/drivers/media/video/tlg2300/pd-dvb.c
new file mode 100644
index 000..933fff0
--- /dev/null
+++ b/drivers/media/video/tlg2300/pd-dvb.c
@@ -0,0 +1,649 @@
+#include "pd-common.h"
+#include
+#include
+#include
+#include
+
+#include "vendorcmds.h"
+#include
+#include
+
+static void dvb_urb_cleanup(struct pd_dvb_adapter *pd_dvb);
+
+static int dvb_bandwidth[][2] = {
+ { TLG_BW_8, BANDWIDTH_8_MHZ },
+ { TLG_BW_7, BANDWIDTH_7_MHZ },
+ { TLG_BW_6, BANDWIDTH_6_MHZ }
+};
+static int dvb_bandwidth_length = ARRAY_SIZE(dvb_bandwidth);
+
+static s32 dvb_start_streaming(struct pd_dvb_adapter *pd_dvb);
+static int poseidon_check_mode_dvbt(struct poseidon *pd)
+{
+ s32 ret = 0, cmd_status = 0;
+
+ set_current_state(TASK_INTERRUPTIBLE);
+ schedule_timeout(HZ/4);
+
+ ret = usb_set_interface(pd->udev, 0, BULK_ALTERNATE_IFACE);
+ if (ret != 0)
+ return ret;
+
+ ret = set_tuner_mode(pd, TLG_MODE_CAPS_DVB_T);
+ if (ret)
+ return ret;
+
+ /* signal source */
+ ret = send_set_req(pd, SGNL_SRC_SEL, TLG_SIG_SRC_ANTENNA, &cmd_status);
+ if (ret|cmd_status)
+ return ret;
+
+ return 0;
+}
+
+/* acquire :
+ * 1 == open
+ * 0 == release
+ */
+static int poseidon_ts_bus_ctrl(struct dvb_frontend *fe, int acquire)
+{
+ struct poseidon *pd = fe->demodulator_priv;
+ struct pd_dvb_adapter *pd_dvb;
+ int ret = 0;
+
+ if (!pd)
+ return -ENODEV;
+
+ pd_dvb = container_of(fe, struct pd_dvb_adapter, dvb_fe);
+ if (acquire) {
+ mutex_lock(&pd->lock);
+ if (pd->state & POSEIDON_STATE_DISCONNECT) {
+ ret = -ENODEV;
+ goto open_out;
+ }
+
+ if (pd->state && !(pd->state & POSEIDON_STATE_DVBT)) {
+ ret = -EBUSY;
+ goto open_out;
+ }
+
+ usb_autopm_get_interface(pd->interface);
+ if (0 == pd->state) {
+ ret = poseidon_check_mode_dvbt(pd);
+ if (ret < 0)
+ goto open_out;
+ pd->state |= POSEIDON_STATE_DVBT;
+ pd_dvb->bandwidth = 0;
+ pd_dvb->prev_freq = 0;
+ }
+ atomic_inc(&pd_dvb->users);
+ kref_get(&pd->kref);
+open_out:
+ mutex_unlock(&pd->lock);
+ } else {
+ dvb_stop_streaming(pd_dvb);
+
+ if (atomic_dec_and_test(&pd_dvb->users)) {
+ mutex_lock(&pd->lock);
+ pd->state &= ~POSEIDON_STATE_DVBT;
+ mutex_unlock(&pd->lock);
+ }
+ kref_put(&pd->kref, poseidon_delete);
+ usb_autopm_put_interface(pd->interface);
+ }
+ return ret;
+}
+
+static void poseidon_fe_release(struct dvb_frontend *fe)
+{
+ struct poseidon *pd = fe->demodulator_priv;
+
+#ifdef CONFIG_PM
+ pd->pm_suspend = NULL;
+ pd->pm_resume = NULL;
+#endif
+}
+
+static s32 poseidon_fe_sleep(struct dvb_frontend *fe)
+{
+ return 0;
+}
+
+/*
+ * return true if we can satisfy the conditions, else return false.
+ */
+static bool check_scan_ok(__u32 freq, int bandwidth,
+ struct pd_dvb_adapter *adapter)
+{
+ if (bandwidth < 0)
+ return false;
+
+ if (adapter->prev_freq == freq
+ && adapter->bandwidth == bandwidth) {
+ long nl = jiffies - adapter->last_jiffies;
+ unsigned int msec ;
+
+ msec = jiffies_to_msecs(abs(nl));
+ return msec > 15000 ? true : false;
+ }
+ return true;
+}
+
+/*
+ * Check if the firmware delays too long for an invalid frequency.
+ */
+static int fw_delay_overflow(struct pd_dvb_adapter *adapter)
+{
+ long nl = jiffies - adapter->last_jiffies;
+ unsigned int msec ;
+
+ msec = jiffies_to_msecs(abs(nl));
+ return msec > 800 ? true : false;
+}
+
+static int pm_dvb_suspend(struct poseidon *pd)
+{
+ struct pd_dvb_adapter *pd_dvb = &pd->dvb_data;
+ dvb_stop_streaming(pd_dvb);
+ dvb_urb_cleanup(pd_dvb);
+ mdelay(2000);
+ return 0;
+}
+
+
+static int poseidon_set_fe(struct dvb_frontend *fe,
+ struct dvb_frontend_parameters *fep)
+{
+ s32 ret = 0, cmd_status = 0;
+ s32 i, bandwidth = -1;
+ struct poseidon *pd = fe->demodulator_priv;
+ struct pd_dvb_adapter *pd_dvb = &pd->dvb_data;
+
+ if (in_hibernation(pd))
+
