diff options
Diffstat (limited to 'drivers/staging/media/tlg2300/pd-dvb.c')
| -rw-r--r-- | drivers/staging/media/tlg2300/pd-dvb.c | 597 |
1 files changed, 0 insertions, 597 deletions
diff --git a/drivers/staging/media/tlg2300/pd-dvb.c b/drivers/staging/media/tlg2300/pd-dvb.c deleted file mode 100644 index ca4994a5190c..000000000000 --- a/drivers/staging/media/tlg2300/pd-dvb.c +++ /dev/null @@ -1,597 +0,0 @@ -#include "pd-common.h" -#include <linux/kernel.h> -#include <linux/usb.h> -#include <linux/time.h> -#include <linux/dvb/dmx.h> -#include <linux/delay.h> -#include <linux/gfp.h> - -#include "vendorcmds.h" -#include <linux/sched.h> -#include <linux/atomic.h> - -static void dvb_urb_cleanup(struct pd_dvb_adapter *pd_dvb); - -static int dvb_bandwidth[][2] = { - { TLG_BW_8, 8000000 }, - { TLG_BW_7, 7000000 }, - { TLG_BW_6, 6000000 } -}; -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) { - usb_autopm_put_interface(pd->interface); - 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; -} - -#ifdef CONFIG_PM -static void poseidon_fe_release(struct dvb_frontend *fe) -{ - struct poseidon *pd = fe->demodulator_priv; - - pd->pm_suspend = NULL; - pd->pm_resume = NULL; -} -#else -#define poseidon_fe_release 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 poseidon_set_fe(struct dvb_frontend *fe) -{ - struct dtv_frontend_properties *fep = &fe->dtv_property_cache; - 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)) - return -EBUSY; - - mutex_lock(&pd->lock); - for (i = 0; i < dvb_bandwidth_length; i++) - if (fep->bandwidth_hz == dvb_bandwidth[i][1]) - bandwidth = dvb_bandwidth[i][0]; - - if (check_scan_ok(fep->frequency, bandwidth, pd_dvb)) { - ret = send_set_req(pd, TUNE_FREQ_SELECT, - fep->frequency / 1000, &cmd_status); - if (ret | cmd_status) { - log("error line"); - goto front_out; - } - - ret = send_set_req(pd, DVBT_BANDW_SEL, - bandwidth, &cmd_status); - if (ret | cmd_status) { - log("error line"); - goto front_out; - } - - ret = send_set_req(pd, TAKE_REQUEST, 0, &cmd_status); - if (ret | cmd_status) { - log("error line"); - goto front_out; - } - - /* save the context for future */ - memcpy(&pd_dvb->fe_param, fep, sizeof(*fep)); - pd_dvb->bandwidth = bandwidth; - pd_dvb->prev_freq = fep->frequency; - pd_dvb->last_jiffies = jiffies; - } -front_out: - mutex_unlock(&pd->lock); - return ret; -} - -#ifdef CONFIG_PM -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); - msleep(500); - return 0; -} - -static int pm_dvb_resume(struct poseidon *pd) -{ - struct pd_dvb_adapter *pd_dvb = &pd->dvb_data; - - poseidon_check_mode_dvbt(pd); - msleep(300); - poseidon_set_fe(&pd_dvb->dvb_fe); - - dvb_start_streaming(pd_dvb); - return 0; -} -#endif - -static s32 poseidon_fe_init(struct dvb_frontend *fe) -{ - struct poseidon *pd = fe->demodulator_priv; - struct pd_dvb_adapter *pd_dvb = &pd->dvb_data; - -#ifdef CONFIG_PM - pd->pm_suspend = pm_dvb_suspend; - pd->pm_resume = pm_dvb_resume; -#endif - memset(&pd_dvb->fe_param, 0, - sizeof(struct dtv_frontend_properties)); - return 0; -} - -static int poseidon_get_fe(struct dvb_frontend *fe) -{ - struct dtv_frontend_properties *fep = &fe->dtv_property_cache; - struct poseidon *pd = fe->demodulator_priv; - struct pd_dvb_adapter *pd_dvb = &pd->dvb_data; - - memcpy(fep, &pd_dvb->fe_param, sizeof(*fep)); - return 0; -} - -static int poseidon_fe_get_tune_settings(struct dvb_frontend *fe, - struct dvb_frontend_tune_settings *tune) -{ - tune->min_delay_ms = 1000; - return 0; -} - -static int poseidon_read_status(struct dvb_frontend *fe, fe_status_t *stat) -{ - struct poseidon *pd = fe->demodulator_priv; - s32 ret = -1, cmd_status; - struct tuner_dtv_sig_stat_s status = {}; - - if (in_hibernation(pd)) - return -EBUSY; - mutex_lock(&pd->lock); - - ret = send_get_req(pd, TUNER_STATUS, TLG_MODE_DVB_T, - &status, &cmd_status, sizeof(status)); - if (ret | cmd_status) { - log("get tuner status error"); - goto out; - } - - if (debug_mode) - log("P : %d, L %d, LB :%d", status.sig_present, - status.sig_locked, status.sig_lock_busy); - - if (status.sig_lock_busy) { - goto out; - } else if (status.sig_present || status.sig_locked) { - *stat |= FE_HAS_LOCK | FE_HAS_SIGNAL | FE_HAS_CARRIER - | FE_HAS_SYNC | FE_HAS_VITERBI; - } else { - if (fw_delay_overflow(&pd->dvb_data)) - *stat |= FE_TIMEDOUT; - } -out: - mutex_unlock(&pd->lock); - return ret; -} - -static int poseidon_read_ber(struct dvb_frontend *fe, u32 *ber) -{ - struct poseidon *pd = fe->demodulator_priv; - struct tuner_ber_rate_s tlg_ber = {}; - s32 ret = -1, cmd_status; - - mutex_lock(&pd->lock); - ret = send_get_req(pd, TUNER_BER_RATE, 0, - &tlg_ber, &cmd_status, sizeof(tlg_ber)); - if (ret | cmd_status) - goto out; - *ber = tlg_ber.ber_rate; -out: - mutex_unlock(&pd->lock); - return ret; -} - -static s32 poseidon_read_signal_strength(struct dvb_frontend *fe, u16 *strength) -{ - struct poseidon *pd = fe->demodulator_priv; - struct tuner_dtv_sig_stat_s status = {}; - s32 ret = 0, cmd_status; - - mutex_lock(&pd->lock); - ret = send_get_req(pd, TUNER_STATUS, TLG_MODE_DVB_T, - &status, &cmd_status, sizeof(status)); - if (ret | cmd_status) - goto out; - if ((status.sig_present || status.sig_locked) && !status.sig_strength) - *strength = 0xFFFF; - else - *strength = status.sig_strength; -out: - mutex_unlock(&pd->lock); - return ret; -} - -static int poseidon_read_snr(struct dvb_frontend *fe, u16 *snr) -{ - return 0; -} - -static int poseidon_read_unc_blocks(struct dvb_frontend *fe, u32 *unc) -{ - *unc = 0; - return 0; -} - -static struct dvb_frontend_ops poseidon_frontend_ops = { - .delsys = { SYS_DVBT }, - .info = { - .name = "Poseidon DVB-T", - .frequency_min = 174000000, - .frequency_max = 862000000, - .frequency_stepsize = 62500,/* FIXME */ - .caps = FE_CAN_INVERSION_AUTO | - FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 | - FE_CAN_FEC_5_6 | FE_CAN_FEC_7_8 | FE_CAN_FEC_AUTO | - FE_CAN_QPSK | FE_CAN_QAM_16 | FE_CAN_QAM_64 | - FE_CAN_QAM_AUTO | FE_CAN_TRANSMISSION_MODE_AUTO | - FE_CAN_GUARD_INTERVAL_AUTO | - FE_CAN_RECOVER | - FE_CAN_HIERARCHY_AUTO, - }, - - .release = poseidon_fe_release, - - .init = poseidon_fe_init, - .sleep = poseidon_fe_sleep, - - .set_frontend = poseidon_set_fe, - .get_frontend = poseidon_get_fe, - .get_tune_settings = poseidon_fe_get_tune_settings, - - .read_status = poseidon_read_status, - .read_ber = poseidon_read_ber, - .read_signal_strength = poseidon_read_signal_strength, - .read_snr = poseidon_read_snr, - .read_ucblocks = poseidon_read_unc_blocks, - - .ts_bus_ctrl = poseidon_ts_bus_ctrl, -}; - -static void dvb_urb_irq(struct urb *urb) -{ - struct pd_dvb_adapter *pd_dvb = urb->context; - int len = urb->transfer_buffer_length; - struct dvb_demux *demux = &pd_dvb->demux; - s32 ret; - - if (!pd_dvb->is_streaming || urb->status) { - if (urb->status == -EPROTO) - goto resend; - return; - } - - if (urb->actual_length == len) - dvb_dmx_swfilter(demux, urb->transfer_buffer, len); - else if (urb->actual_length == len - 4) { - int offset; - u8 *buf = urb->transfer_buffer; - - /* - * The packet size is 512, - * last packet contains 456 bytes tsp data - */ - for (offset = 456; offset < len; offset += 512) { - if (!strncmp(buf + offset, "DVHS", 4)) { - dvb_dmx_swfilter(demux, buf, offset); - if (len > offset + 52 + 4) { - /*16 bytes trailer + 36 bytes padding */ - buf += offset + 52; - len -= offset + 52 + 4; - dvb_dmx_swfilter(demux, buf, len); - } - break; - } - } - } - -resend: - ret = usb_submit_urb(urb, GFP_ATOMIC); - if (ret) - log(" usb_submit_urb failed: error %d", ret); -} - -static int dvb_urb_init(struct pd_dvb_adapter *pd_dvb) -{ - if (pd_dvb->urb_array[0]) - return 0; - - alloc_bulk_urbs_generic(pd_dvb->urb_array, DVB_SBUF_NUM, - pd_dvb->pd_device->udev, pd_dvb->ep_addr, - DVB_URB_BUF_SIZE, GFP_KERNEL, - dvb_urb_irq, pd_dvb); - return 0; -} - -static void dvb_urb_cleanup(struct pd_dvb_adapter *pd_dvb) -{ - free_all_urb_generic(pd_dvb->urb_array, DVB_SBUF_NUM); -} - -static s32 dvb_start_streaming(struct pd_dvb_adapter *pd_dvb) -{ - struct poseidon *pd = pd_dvb->pd_device; - int ret = 0; - - if (pd->state & POSEIDON_STATE_DISCONNECT) - return -ENODEV; - - mutex_lock(&pd->lock); - if (!pd_dvb->is_streaming) { - s32 i, cmd_status = 0; - /* - * Once upon a time, there was a difficult bug lying here. - * ret = send_set_req(pd, TAKE_REQUEST, 0, &cmd_status); - */ - - ret = send_set_req(pd, PLAY_SERVICE, 1, &cmd_status); - if (ret | cmd_status) - goto out; - - ret = dvb_urb_init(pd_dvb); - if (ret < 0) - goto out; - - pd_dvb->is_streaming = 1; - for (i = 0; i < DVB_SBUF_NUM; i++) { - ret = usb_submit_urb(pd_dvb->urb_array[i], - GFP_KERNEL); - if (ret) { - log(" submit urb error %d", ret); - goto out; - } - } - } -out: - mutex_unlock(&pd->lock); - return ret; -} - -void dvb_stop_streaming(struct pd_dvb_adapter *pd_dvb) -{ - struct poseidon *pd = pd_dvb->pd_device; - - mutex_lock(&pd->lock); - if (pd_dvb->is_streaming) { - s32 i, ret, cmd_status = 0; - - pd_dvb->is_streaming = 0; - - for (i = 0; i < DVB_SBUF_NUM; i++) - if (pd_dvb->urb_array[i]) - usb_kill_urb(pd_dvb->urb_array[i]); - - ret = send_set_req(pd, PLAY_SERVICE, TLG_TUNE_PLAY_SVC_STOP, - &cmd_status); - if (ret | cmd_status) - log("error"); - } - mutex_unlock(&pd->lock); -} - -static int pd_start_feed(struct dvb_demux_feed *feed) -{ - struct pd_dvb_adapter *pd_dvb = feed->demux->priv; - int ret = 0; - - if (!pd_dvb) - return -1; - if (atomic_inc_return(&pd_dvb->active_feed) == 1) - ret = dvb_start_streaming(pd_dvb); - return ret; -} - -static int pd_stop_feed(struct dvb_demux_feed *feed) -{ - struct pd_dvb_adapter *pd_dvb = feed->demux->priv; - - if (!pd_dvb) - return -1; - if (atomic_dec_and_test(&pd_dvb->active_feed)) - dvb_stop_streaming(pd_dvb); - return 0; -} - -DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr); -int pd_dvb_usb_device_init(struct poseidon *pd) -{ - struct pd_dvb_adapter *pd_dvb = &pd->dvb_data; - struct dvb_demux *dvbdemux; - int ret = 0; - - pd_dvb->ep_addr = 0x82; - atomic_set(&pd_dvb->users, 0); - atomic_set(&pd_dvb->active_feed, 0); - pd_dvb->pd_device = pd; - - ret = dvb_register_adapter(&pd_dvb->dvb_adap, - "Poseidon dvbt adapter", - THIS_MODULE, - NULL /* for hibernation correctly*/, - adapter_nr); - if (ret < 0) - goto error1; - - /* register frontend */ - pd_dvb->dvb_fe.demodulator_priv = pd; - memcpy(&pd_dvb->dvb_fe.ops, &poseidon_frontend_ops, - sizeof(struct dvb_frontend_ops)); - ret = dvb_register_frontend(&pd_dvb->dvb_adap, &pd_dvb->dvb_fe); - if (ret < 0) - goto error2; - - /* register demux device */ - dvbdemux = &pd_dvb->demux; - dvbdemux->dmx.capabilities = DMX_TS_FILTERING | DMX_SECTION_FILTERING; - dvbdemux->priv = pd_dvb; - dvbdemux->feednum = dvbdemux->filternum = 64; - dvbdemux->start_feed = pd_start_feed; - dvbdemux->stop_feed = pd_stop_feed; - dvbdemux->write_to_decoder = NULL; - - ret = dvb_dmx_init(dvbdemux); - if (ret < 0) - goto error3; - - pd_dvb->dmxdev.filternum = pd_dvb->demux.filternum; - pd_dvb->dmxdev.demux = &pd_dvb->demux.dmx; - pd_dvb->dmxdev.capabilities = 0; - - ret = dvb_dmxdev_init(&pd_dvb->dmxdev, &pd_dvb->dvb_adap); - if (ret < 0) - goto error3; - return 0; - -error3: - dvb_unregister_frontend(&pd_dvb->dvb_fe); -error2: - dvb_unregister_adapter(&pd_dvb->dvb_adap); -error1: - return ret; -} - -void pd_dvb_usb_device_exit(struct poseidon *pd) -{ - struct pd_dvb_adapter *pd_dvb = &pd->dvb_data; - - while (atomic_read(&pd_dvb->users) != 0 - || atomic_read(&pd_dvb->active_feed) != 0) { - set_current_state(TASK_INTERRUPTIBLE); - schedule_timeout(HZ); - } - dvb_dmxdev_release(&pd_dvb->dmxdev); - dvb_unregister_frontend(&pd_dvb->dvb_fe); - dvb_unregister_adapter(&pd_dvb->dvb_adap); - pd_dvb_usb_device_cleanup(pd); -} - -void pd_dvb_usb_device_cleanup(struct poseidon *pd) -{ - struct pd_dvb_adapter *pd_dvb = &pd->dvb_data; - - dvb_urb_cleanup(pd_dvb); -} - -int pd_dvb_get_adapter_num(struct pd_dvb_adapter *pd_dvb) -{ - return pd_dvb->dvb_adap.num; -} |